Part of reorganising wireless drivers directory and Kconfig.
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
L: b43-dev@lists.infradead.org
W: http://wireless.kernel.org/en/users/Drivers/b43
S: Maintained
-F: drivers/net/wireless/b43legacy/
+F: drivers/net/wireless/broadcom/b43legacy/
BACKLIGHT CLASS/SUBSYSTEM
M: Jingoo Han <jingoohan1@gmail.com>
will be called mwl8k. If unsure, say N.
source "drivers/net/wireless/ath/Kconfig"
-source "drivers/net/wireless/b43legacy/Kconfig"
source "drivers/net/wireless/brcm80211/Kconfig"
source "drivers/net/wireless/hostap/Kconfig"
source "drivers/net/wireless/ipw2x00/Kconfig"
obj-$(CONFIG_PRISM54) += prism54/
obj-$(CONFIG_HOSTAP) += hostap/
-obj-$(CONFIG_B43LEGACY) += b43legacy/
obj-$(CONFIG_ZD1211RW) += zd1211rw/
obj-$(CONFIG_WLAN) += realtek/
+++ /dev/null
-config B43LEGACY
- tristate "Broadcom 43xx-legacy wireless support (mac80211 stack)"
- depends on SSB_POSSIBLE && MAC80211 && HAS_DMA
- select SSB
- select FW_LOADER
- ---help---
- b43legacy is a driver for 802.11b devices from Broadcom (BCM4301 and
- BCM4303) and early model 802.11g chips (BCM4306 Ver. 2) used in the
- Linksys WPC54G V1 PCMCIA devices.
-
- Newer 802.11g and 802.11a devices need b43.
-
- It is safe to include both b43 and b43legacy as the underlying glue
- layer will automatically load the correct version for your device.
-
- This driver uses V3 firmware, which must be installed separately using
- b43-fwcutter.
-
- This driver can be built as a module (recommended) that will be
- called "b43legacy". If unsure, say M.
-
-# Auto-select SSB PCI-HOST support, if possible
-config B43LEGACY_PCI_AUTOSELECT
- bool
- depends on B43LEGACY && SSB_PCIHOST_POSSIBLE
- select SSB_PCIHOST
- select SSB_B43_PCI_BRIDGE
- default y
-
-# Auto-select SSB PCICORE driver, if possible
-config B43LEGACY_PCICORE_AUTOSELECT
- bool
- depends on B43LEGACY && SSB_DRIVER_PCICORE_POSSIBLE
- select SSB_DRIVER_PCICORE
- default y
-
-# LED support
-# This config option automatically enables b43legacy LEDS support,
-# if it's possible.
-config B43LEGACY_LEDS
- bool
- depends on B43LEGACY && MAC80211_LEDS && (LEDS_CLASS = y || LEDS_CLASS = B43LEGACY)
- default y
-
-# This config option automatically enables b43 HW-RNG support,
-# if the HW-RNG core is enabled.
-config B43LEGACY_HWRNG
- bool
- depends on B43LEGACY && (HW_RANDOM = y || HW_RANDOM = B43LEGACY)
- default y
-
-config B43LEGACY_DEBUG
- bool "Broadcom 43xx-legacy debugging"
- depends on B43LEGACY
- default y
- ---help---
- Say Y, because this information will help you get the driver running.
- This option generates a minimum of log output.
-
-config B43LEGACY_DMA
- bool
- depends on B43LEGACY
-
-config B43LEGACY_PIO
- bool
- depends on B43LEGACY
-
-choice
- prompt "Broadcom 43xx-legacy data transfer mode"
- depends on B43LEGACY
- default B43LEGACY_DMA_AND_PIO_MODE
-
-config B43LEGACY_DMA_AND_PIO_MODE
- bool "DMA + PIO"
- select B43LEGACY_DMA
- select B43LEGACY_PIO
- ---help---
- Include both, Direct Memory Access (DMA) and Programmed I/O (PIO)
- data transfer modes. The mode actually used is selectable through
- the module parameter "pio". With pio=0 as a module parameter, the
- default DMA is used, otherwise PIO is used.
-
- If unsure, choose this option.
-
-config B43LEGACY_DMA_MODE
- bool "DMA (Direct Memory Access) only"
- select B43LEGACY_DMA
- ---help---
- Only include Direct Memory Access (DMA).
- This reduces the size of the driver module, by omitting the PIO code.
-
-config B43LEGACY_PIO_MODE
- bool "PIO (Programmed I/O) only"
- select B43LEGACY_PIO
- ---help---
- Only include Programmed I/O (PIO).
- This reduces the size of the driver module, by omitting the DMA code.
- Please note that PIO transfers are slow (compared to DMA).
-
- Also note that not all devices of the b43legacy series support PIO.
-
- You should use PIO only if DMA does not work for you.
-
-endchoice
+++ /dev/null
-# b43legacy core
-b43legacy-y += main.o
-b43legacy-y += ilt.o
-b43legacy-y += phy.o
-b43legacy-y += radio.o
-b43legacy-y += sysfs.o
-b43legacy-y += xmit.o
-# b43 RFKILL button support
-b43legacy-y += rfkill.o
-# b43legacy LED support
-b43legacy-$(CONFIG_B43LEGACY_LEDS) += leds.o
-# b43legacy debugging
-b43legacy-$(CONFIG_B43LEGACY_DEBUG) += debugfs.o
-# b43legacy DMA and PIO
-b43legacy-$(CONFIG_B43LEGACY_DMA) += dma.o
-b43legacy-$(CONFIG_B43LEGACY_PIO) += pio.o
-
-obj-$(CONFIG_B43LEGACY) += b43legacy.o
-
+++ /dev/null
-#ifndef B43legacy_H_
-#define B43legacy_H_
-
-#include <linux/hw_random.h>
-#include <linux/kernel.h>
-#include <linux/spinlock.h>
-#include <linux/interrupt.h>
-#include <linux/stringify.h>
-#include <linux/netdevice.h>
-#include <linux/pci.h>
-#include <linux/atomic.h>
-#include <linux/io.h>
-
-#include <linux/ssb/ssb.h>
-#include <linux/ssb/ssb_driver_chipcommon.h>
-#include <linux/completion.h>
-
-#include <net/mac80211.h>
-
-#include "debugfs.h"
-#include "leds.h"
-#include "rfkill.h"
-#include "phy.h"
-
-
-#define B43legacy_IRQWAIT_MAX_RETRIES 20
-
-/* MMIO offsets */
-#define B43legacy_MMIO_DMA0_REASON 0x20
-#define B43legacy_MMIO_DMA0_IRQ_MASK 0x24
-#define B43legacy_MMIO_DMA1_REASON 0x28
-#define B43legacy_MMIO_DMA1_IRQ_MASK 0x2C
-#define B43legacy_MMIO_DMA2_REASON 0x30
-#define B43legacy_MMIO_DMA2_IRQ_MASK 0x34
-#define B43legacy_MMIO_DMA3_REASON 0x38
-#define B43legacy_MMIO_DMA3_IRQ_MASK 0x3C
-#define B43legacy_MMIO_DMA4_REASON 0x40
-#define B43legacy_MMIO_DMA4_IRQ_MASK 0x44
-#define B43legacy_MMIO_DMA5_REASON 0x48
-#define B43legacy_MMIO_DMA5_IRQ_MASK 0x4C
-#define B43legacy_MMIO_MACCTL 0x120 /* MAC control */
-#define B43legacy_MMIO_MACCMD 0x124 /* MAC command */
-#define B43legacy_MMIO_GEN_IRQ_REASON 0x128
-#define B43legacy_MMIO_GEN_IRQ_MASK 0x12C
-#define B43legacy_MMIO_RAM_CONTROL 0x130
-#define B43legacy_MMIO_RAM_DATA 0x134
-#define B43legacy_MMIO_PS_STATUS 0x140
-#define B43legacy_MMIO_RADIO_HWENABLED_HI 0x158
-#define B43legacy_MMIO_SHM_CONTROL 0x160
-#define B43legacy_MMIO_SHM_DATA 0x164
-#define B43legacy_MMIO_SHM_DATA_UNALIGNED 0x166
-#define B43legacy_MMIO_XMITSTAT_0 0x170
-#define B43legacy_MMIO_XMITSTAT_1 0x174
-#define B43legacy_MMIO_REV3PLUS_TSF_LOW 0x180 /* core rev >= 3 only */
-#define B43legacy_MMIO_REV3PLUS_TSF_HIGH 0x184 /* core rev >= 3 only */
-#define B43legacy_MMIO_TSF_CFP_REP 0x188
-#define B43legacy_MMIO_TSF_CFP_START 0x18C
-/* 32-bit DMA */
-#define B43legacy_MMIO_DMA32_BASE0 0x200
-#define B43legacy_MMIO_DMA32_BASE1 0x220
-#define B43legacy_MMIO_DMA32_BASE2 0x240
-#define B43legacy_MMIO_DMA32_BASE3 0x260
-#define B43legacy_MMIO_DMA32_BASE4 0x280
-#define B43legacy_MMIO_DMA32_BASE5 0x2A0
-/* 64-bit DMA */
-#define B43legacy_MMIO_DMA64_BASE0 0x200
-#define B43legacy_MMIO_DMA64_BASE1 0x240
-#define B43legacy_MMIO_DMA64_BASE2 0x280
-#define B43legacy_MMIO_DMA64_BASE3 0x2C0
-#define B43legacy_MMIO_DMA64_BASE4 0x300
-#define B43legacy_MMIO_DMA64_BASE5 0x340
-/* PIO */
-#define B43legacy_MMIO_PIO1_BASE 0x300
-#define B43legacy_MMIO_PIO2_BASE 0x310
-#define B43legacy_MMIO_PIO3_BASE 0x320
-#define B43legacy_MMIO_PIO4_BASE 0x330
-
-#define B43legacy_MMIO_PHY_VER 0x3E0
-#define B43legacy_MMIO_PHY_RADIO 0x3E2
-#define B43legacy_MMIO_PHY0 0x3E6
-#define B43legacy_MMIO_ANTENNA 0x3E8
-#define B43legacy_MMIO_CHANNEL 0x3F0
-#define B43legacy_MMIO_CHANNEL_EXT 0x3F4
-#define B43legacy_MMIO_RADIO_CONTROL 0x3F6
-#define B43legacy_MMIO_RADIO_DATA_HIGH 0x3F8
-#define B43legacy_MMIO_RADIO_DATA_LOW 0x3FA
-#define B43legacy_MMIO_PHY_CONTROL 0x3FC
-#define B43legacy_MMIO_PHY_DATA 0x3FE
-#define B43legacy_MMIO_MACFILTER_CONTROL 0x420
-#define B43legacy_MMIO_MACFILTER_DATA 0x422
-#define B43legacy_MMIO_RCMTA_COUNT 0x43C /* Receive Match Transmitter Addr */
-#define B43legacy_MMIO_RADIO_HWENABLED_LO 0x49A
-#define B43legacy_MMIO_GPIO_CONTROL 0x49C
-#define B43legacy_MMIO_GPIO_MASK 0x49E
-#define B43legacy_MMIO_TSF_CFP_PRETBTT 0x612
-#define B43legacy_MMIO_TSF_0 0x632 /* core rev < 3 only */
-#define B43legacy_MMIO_TSF_1 0x634 /* core rev < 3 only */
-#define B43legacy_MMIO_TSF_2 0x636 /* core rev < 3 only */
-#define B43legacy_MMIO_TSF_3 0x638 /* core rev < 3 only */
-#define B43legacy_MMIO_RNG 0x65A
-#define B43legacy_MMIO_POWERUP_DELAY 0x6A8
-
-/* SPROM boardflags_lo values */
-#define B43legacy_BFL_PACTRL 0x0002
-#define B43legacy_BFL_RSSI 0x0008
-#define B43legacy_BFL_EXTLNA 0x1000
-
-/* GPIO register offset, in both ChipCommon and PCI core. */
-#define B43legacy_GPIO_CONTROL 0x6c
-
-/* SHM Routing */
-#define B43legacy_SHM_SHARED 0x0001
-#define B43legacy_SHM_WIRELESS 0x0002
-#define B43legacy_SHM_HW 0x0004
-#define B43legacy_SHM_UCODE 0x0300
-
-/* SHM Routing modifiers */
-#define B43legacy_SHM_AUTOINC_R 0x0200 /* Read Auto-increment */
-#define B43legacy_SHM_AUTOINC_W 0x0100 /* Write Auto-increment */
-#define B43legacy_SHM_AUTOINC_RW (B43legacy_SHM_AUTOINC_R | \
- B43legacy_SHM_AUTOINC_W)
-
-/* Misc SHM_SHARED offsets */
-#define B43legacy_SHM_SH_WLCOREREV 0x0016 /* 802.11 core revision */
-#define B43legacy_SHM_SH_HOSTFLO 0x005E /* Hostflags ucode opts (low) */
-#define B43legacy_SHM_SH_HOSTFHI 0x0060 /* Hostflags ucode opts (high) */
-/* SHM_SHARED crypto engine */
-#define B43legacy_SHM_SH_KEYIDXBLOCK 0x05D4 /* Key index/algorithm block */
-/* SHM_SHARED beacon/AP variables */
-#define B43legacy_SHM_SH_DTIMP 0x0012 /* DTIM period */
-#define B43legacy_SHM_SH_BTL0 0x0018 /* Beacon template length 0 */
-#define B43legacy_SHM_SH_BTL1 0x001A /* Beacon template length 1 */
-#define B43legacy_SHM_SH_BTSFOFF 0x001C /* Beacon TSF offset */
-#define B43legacy_SHM_SH_TIMPOS 0x001E /* TIM position in beacon */
-#define B43legacy_SHM_SH_BEACPHYCTL 0x0054 /* Beacon PHY TX control word */
-/* SHM_SHARED ACK/CTS control */
-#define B43legacy_SHM_SH_ACKCTSPHYCTL 0x0022 /* ACK/CTS PHY control word */
-/* SHM_SHARED probe response variables */
-#define B43legacy_SHM_SH_PRTLEN 0x004A /* Probe Response template length */
-#define B43legacy_SHM_SH_PRMAXTIME 0x0074 /* Probe Response max time */
-#define B43legacy_SHM_SH_PRPHYCTL 0x0188 /* Probe Resp PHY TX control */
-/* SHM_SHARED rate tables */
-#define B43legacy_SHM_SH_OFDMDIRECT 0x0480 /* Pointer to OFDM direct map */
-#define B43legacy_SHM_SH_OFDMBASIC 0x04A0 /* Pointer to OFDM basic rate map */
-#define B43legacy_SHM_SH_CCKDIRECT 0x04C0 /* Pointer to CCK direct map */
-#define B43legacy_SHM_SH_CCKBASIC 0x04E0 /* Pointer to CCK basic rate map */
-/* SHM_SHARED microcode soft registers */
-#define B43legacy_SHM_SH_UCODEREV 0x0000 /* Microcode revision */
-#define B43legacy_SHM_SH_UCODEPATCH 0x0002 /* Microcode patchlevel */
-#define B43legacy_SHM_SH_UCODEDATE 0x0004 /* Microcode date */
-#define B43legacy_SHM_SH_UCODETIME 0x0006 /* Microcode time */
-#define B43legacy_SHM_SH_SPUWKUP 0x0094 /* pre-wakeup for synth PU in us */
-#define B43legacy_SHM_SH_PRETBTT 0x0096 /* pre-TBTT in us */
-
-#define B43legacy_UCODEFLAGS_OFFSET 0x005E
-
-/* Hardware Radio Enable masks */
-#define B43legacy_MMIO_RADIO_HWENABLED_HI_MASK (1 << 16)
-#define B43legacy_MMIO_RADIO_HWENABLED_LO_MASK (1 << 4)
-
-/* HostFlags. See b43legacy_hf_read/write() */
-#define B43legacy_HF_SYMW 0x00000002 /* G-PHY SYM workaround */
-#define B43legacy_HF_GDCW 0x00000020 /* G-PHY DV cancel filter */
-#define B43legacy_HF_OFDMPABOOST 0x00000040 /* Enable PA boost OFDM */
-#define B43legacy_HF_EDCF 0x00000100 /* on if WME/MAC suspended */
-
-/* MacFilter offsets. */
-#define B43legacy_MACFILTER_SELF 0x0000
-#define B43legacy_MACFILTER_BSSID 0x0003
-#define B43legacy_MACFILTER_MAC 0x0010
-
-/* PHYVersioning */
-#define B43legacy_PHYTYPE_B 0x01
-#define B43legacy_PHYTYPE_G 0x02
-
-/* PHYRegisters */
-#define B43legacy_PHY_G_LO_CONTROL 0x0810
-#define B43legacy_PHY_ILT_G_CTRL 0x0472
-#define B43legacy_PHY_ILT_G_DATA1 0x0473
-#define B43legacy_PHY_ILT_G_DATA2 0x0474
-#define B43legacy_PHY_G_PCTL 0x0029
-#define B43legacy_PHY_RADIO_BITFIELD 0x0401
-#define B43legacy_PHY_G_CRS 0x0429
-#define B43legacy_PHY_NRSSILT_CTRL 0x0803
-#define B43legacy_PHY_NRSSILT_DATA 0x0804
-
-/* RadioRegisters */
-#define B43legacy_RADIOCTL_ID 0x01
-
-/* MAC Control bitfield */
-#define B43legacy_MACCTL_ENABLED 0x00000001 /* MAC Enabled */
-#define B43legacy_MACCTL_PSM_RUN 0x00000002 /* Run Microcode */
-#define B43legacy_MACCTL_PSM_JMP0 0x00000004 /* Microcode jump to 0 */
-#define B43legacy_MACCTL_SHM_ENABLED 0x00000100 /* SHM Enabled */
-#define B43legacy_MACCTL_IHR_ENABLED 0x00000400 /* IHR Region Enabled */
-#define B43legacy_MACCTL_BE 0x00010000 /* Big Endian mode */
-#define B43legacy_MACCTL_INFRA 0x00020000 /* Infrastructure mode */
-#define B43legacy_MACCTL_AP 0x00040000 /* AccessPoint mode */
-#define B43legacy_MACCTL_RADIOLOCK 0x00080000 /* Radio lock */
-#define B43legacy_MACCTL_BEACPROMISC 0x00100000 /* Beacon Promiscuous */
-#define B43legacy_MACCTL_KEEP_BADPLCP 0x00200000 /* Keep bad PLCP frames */
-#define B43legacy_MACCTL_KEEP_CTL 0x00400000 /* Keep control frames */
-#define B43legacy_MACCTL_KEEP_BAD 0x00800000 /* Keep bad frames (FCS) */
-#define B43legacy_MACCTL_PROMISC 0x01000000 /* Promiscuous mode */
-#define B43legacy_MACCTL_HWPS 0x02000000 /* Hardware Power Saving */
-#define B43legacy_MACCTL_AWAKE 0x04000000 /* Device is awake */
-#define B43legacy_MACCTL_TBTTHOLD 0x10000000 /* TBTT Hold */
-#define B43legacy_MACCTL_GMODE 0x80000000 /* G Mode */
-
-/* MAC Command bitfield */
-#define B43legacy_MACCMD_BEACON0_VALID 0x00000001 /* Beacon 0 in template RAM is busy/valid */
-#define B43legacy_MACCMD_BEACON1_VALID 0x00000002 /* Beacon 1 in template RAM is busy/valid */
-#define B43legacy_MACCMD_DFQ_VALID 0x00000004 /* Directed frame queue valid (IBSS PS mode, ATIM) */
-#define B43legacy_MACCMD_CCA 0x00000008 /* Clear channel assessment */
-#define B43legacy_MACCMD_BGNOISE 0x00000010 /* Background noise */
-
-/* 802.11 core specific TM State Low flags */
-#define B43legacy_TMSLOW_GMODE 0x20000000 /* G Mode Enable */
-#define B43legacy_TMSLOW_PLLREFSEL 0x00200000 /* PLL Freq Ref Select */
-#define B43legacy_TMSLOW_MACPHYCLKEN 0x00100000 /* MAC PHY Clock Ctrl Enbl */
-#define B43legacy_TMSLOW_PHYRESET 0x00080000 /* PHY Reset */
-#define B43legacy_TMSLOW_PHYCLKEN 0x00040000 /* PHY Clock Enable */
-
-/* 802.11 core specific TM State High flags */
-#define B43legacy_TMSHIGH_FCLOCK 0x00040000 /* Fast Clock Available */
-#define B43legacy_TMSHIGH_GPHY 0x00010000 /* G-PHY avail (rev >= 5) */
-
-#define B43legacy_UCODEFLAG_AUTODIV 0x0001
-
-/* Generic-Interrupt reasons. */
-#define B43legacy_IRQ_MAC_SUSPENDED 0x00000001
-#define B43legacy_IRQ_BEACON 0x00000002
-#define B43legacy_IRQ_TBTT_INDI 0x00000004 /* Target Beacon Transmit Time */
-#define B43legacy_IRQ_BEACON_TX_OK 0x00000008
-#define B43legacy_IRQ_BEACON_CANCEL 0x00000010
-#define B43legacy_IRQ_ATIM_END 0x00000020
-#define B43legacy_IRQ_PMQ 0x00000040
-#define B43legacy_IRQ_PIO_WORKAROUND 0x00000100
-#define B43legacy_IRQ_MAC_TXERR 0x00000200
-#define B43legacy_IRQ_PHY_TXERR 0x00000800
-#define B43legacy_IRQ_PMEVENT 0x00001000
-#define B43legacy_IRQ_TIMER0 0x00002000
-#define B43legacy_IRQ_TIMER1 0x00004000
-#define B43legacy_IRQ_DMA 0x00008000
-#define B43legacy_IRQ_TXFIFO_FLUSH_OK 0x00010000
-#define B43legacy_IRQ_CCA_MEASURE_OK 0x00020000
-#define B43legacy_IRQ_NOISESAMPLE_OK 0x00040000
-#define B43legacy_IRQ_UCODE_DEBUG 0x08000000
-#define B43legacy_IRQ_RFKILL 0x10000000
-#define B43legacy_IRQ_TX_OK 0x20000000
-#define B43legacy_IRQ_PHY_G_CHANGED 0x40000000
-#define B43legacy_IRQ_TIMEOUT 0x80000000
-
-#define B43legacy_IRQ_ALL 0xFFFFFFFF
-#define B43legacy_IRQ_MASKTEMPLATE (B43legacy_IRQ_MAC_SUSPENDED | \
- B43legacy_IRQ_TBTT_INDI | \
- B43legacy_IRQ_ATIM_END | \
- B43legacy_IRQ_PMQ | \
- B43legacy_IRQ_MAC_TXERR | \
- B43legacy_IRQ_PHY_TXERR | \
- B43legacy_IRQ_DMA | \
- B43legacy_IRQ_TXFIFO_FLUSH_OK | \
- B43legacy_IRQ_NOISESAMPLE_OK | \
- B43legacy_IRQ_UCODE_DEBUG | \
- B43legacy_IRQ_RFKILL | \
- B43legacy_IRQ_TX_OK)
-
-/* Device specific rate values.
- * The actual values defined here are (rate_in_mbps * 2).
- * Some code depends on this. Don't change it. */
-#define B43legacy_CCK_RATE_1MB 2
-#define B43legacy_CCK_RATE_2MB 4
-#define B43legacy_CCK_RATE_5MB 11
-#define B43legacy_CCK_RATE_11MB 22
-#define B43legacy_OFDM_RATE_6MB 12
-#define B43legacy_OFDM_RATE_9MB 18
-#define B43legacy_OFDM_RATE_12MB 24
-#define B43legacy_OFDM_RATE_18MB 36
-#define B43legacy_OFDM_RATE_24MB 48
-#define B43legacy_OFDM_RATE_36MB 72
-#define B43legacy_OFDM_RATE_48MB 96
-#define B43legacy_OFDM_RATE_54MB 108
-/* Convert a b43legacy rate value to a rate in 100kbps */
-#define B43legacy_RATE_TO_100KBPS(rate) (((rate) * 10) / 2)
-
-
-#define B43legacy_DEFAULT_SHORT_RETRY_LIMIT 7
-#define B43legacy_DEFAULT_LONG_RETRY_LIMIT 4
-
-#define B43legacy_PHY_TX_BADNESS_LIMIT 1000
-
-/* Max size of a security key */
-#define B43legacy_SEC_KEYSIZE 16
-/* Security algorithms. */
-enum {
- B43legacy_SEC_ALGO_NONE = 0, /* unencrypted, as of TX header. */
- B43legacy_SEC_ALGO_WEP40,
- B43legacy_SEC_ALGO_TKIP,
- B43legacy_SEC_ALGO_AES,
- B43legacy_SEC_ALGO_WEP104,
- B43legacy_SEC_ALGO_AES_LEGACY,
-};
-
-/* Core Information Registers */
-#define B43legacy_CIR_BASE 0xf00
-#define B43legacy_CIR_SBTPSFLAG (B43legacy_CIR_BASE + 0x18)
-#define B43legacy_CIR_SBIMSTATE (B43legacy_CIR_BASE + 0x90)
-#define B43legacy_CIR_SBINTVEC (B43legacy_CIR_BASE + 0x94)
-#define B43legacy_CIR_SBTMSTATELOW (B43legacy_CIR_BASE + 0x98)
-#define B43legacy_CIR_SBTMSTATEHIGH (B43legacy_CIR_BASE + 0x9c)
-#define B43legacy_CIR_SBIMCONFIGLOW (B43legacy_CIR_BASE + 0xa8)
-#define B43legacy_CIR_SB_ID_HI (B43legacy_CIR_BASE + 0xfc)
-
-/* sbtmstatehigh state flags */
-#define B43legacy_SBTMSTATEHIGH_SERROR 0x00000001
-#define B43legacy_SBTMSTATEHIGH_BUSY 0x00000004
-#define B43legacy_SBTMSTATEHIGH_TIMEOUT 0x00000020
-#define B43legacy_SBTMSTATEHIGH_G_PHY_AVAIL 0x00010000
-#define B43legacy_SBTMSTATEHIGH_COREFLAGS 0x1FFF0000
-#define B43legacy_SBTMSTATEHIGH_DMA64BIT 0x10000000
-#define B43legacy_SBTMSTATEHIGH_GATEDCLK 0x20000000
-#define B43legacy_SBTMSTATEHIGH_BISTFAILED 0x40000000
-#define B43legacy_SBTMSTATEHIGH_BISTCOMPLETE 0x80000000
-
-/* sbimstate flags */
-#define B43legacy_SBIMSTATE_IB_ERROR 0x20000
-#define B43legacy_SBIMSTATE_TIMEOUT 0x40000
-
-#define PFX KBUILD_MODNAME ": "
-#ifdef assert
-# undef assert
-#endif
-#ifdef CONFIG_B43LEGACY_DEBUG
-# define B43legacy_WARN_ON(x) WARN_ON(x)
-# define B43legacy_BUG_ON(expr) \
- do { \
- if (unlikely((expr))) { \
- printk(KERN_INFO PFX "Test (%s) failed\n", \
- #expr); \
- BUG_ON(expr); \
- } \
- } while (0)
-# define B43legacy_DEBUG 1
-#else
-/* This will evaluate the argument even if debugging is disabled. */
-static inline bool __b43legacy_warn_on_dummy(bool x) { return x; }
-# define B43legacy_WARN_ON(x) __b43legacy_warn_on_dummy(unlikely(!!(x)))
-# define B43legacy_BUG_ON(x) do { /* nothing */ } while (0)
-# define B43legacy_DEBUG 0
-#endif
-
-
-struct net_device;
-struct pci_dev;
-struct b43legacy_dmaring;
-struct b43legacy_pioqueue;
-
-/* The firmware file header */
-#define B43legacy_FW_TYPE_UCODE 'u'
-#define B43legacy_FW_TYPE_PCM 'p'
-#define B43legacy_FW_TYPE_IV 'i'
-struct b43legacy_fw_header {
- /* File type */
- u8 type;
- /* File format version */
- u8 ver;
- u8 __padding[2];
- /* Size of the data. For ucode and PCM this is in bytes.
- * For IV this is number-of-ivs. */
- __be32 size;
-} __packed;
-
-/* Initial Value file format */
-#define B43legacy_IV_OFFSET_MASK 0x7FFF
-#define B43legacy_IV_32BIT 0x8000
-struct b43legacy_iv {
- __be16 offset_size;
- union {
- __be16 d16;
- __be32 d32;
- } data __packed;
-} __packed;
-
-#define B43legacy_PHYMODE(phytype) (1 << (phytype))
-#define B43legacy_PHYMODE_B B43legacy_PHYMODE \
- ((B43legacy_PHYTYPE_B))
-#define B43legacy_PHYMODE_G B43legacy_PHYMODE \
- ((B43legacy_PHYTYPE_G))
-
-/* Value pair to measure the LocalOscillator. */
-struct b43legacy_lopair {
- s8 low;
- s8 high;
- u8 used:1;
-};
-#define B43legacy_LO_COUNT (14*4)
-
-struct b43legacy_phy {
- /* Possible PHYMODEs on this PHY */
- u8 possible_phymodes;
- /* GMODE bit enabled in MACCTL? */
- bool gmode;
-
- /* Analog Type */
- u8 analog;
- /* B43legacy_PHYTYPE_ */
- u8 type;
- /* PHY revision number. */
- u8 rev;
-
- u16 antenna_diversity;
- u16 savedpctlreg;
- /* Radio versioning */
- u16 radio_manuf; /* Radio manufacturer */
- u16 radio_ver; /* Radio version */
- u8 calibrated:1;
- u8 radio_rev; /* Radio revision */
-
- bool dyn_tssi_tbl; /* tssi2dbm is kmalloc()ed. */
-
- /* ACI (adjacent channel interference) flags. */
- bool aci_enable;
- bool aci_wlan_automatic;
- bool aci_hw_rssi;
-
- /* Radio switched on/off */
- bool radio_on;
- struct {
- /* Values saved when turning the radio off.
- * They are needed when turning it on again. */
- bool valid;
- u16 rfover;
- u16 rfoverval;
- } radio_off_context;
-
- u16 minlowsig[2];
- u16 minlowsigpos[2];
-
- /* LO Measurement Data.
- * Use b43legacy_get_lopair() to get a value.
- */
- struct b43legacy_lopair *_lo_pairs;
- /* TSSI to dBm table in use */
- const s8 *tssi2dbm;
- /* idle TSSI value */
- s8 idle_tssi;
- /* Target idle TSSI */
- int tgt_idle_tssi;
- /* Current idle TSSI */
- int cur_idle_tssi;
-
- /* LocalOscillator control values. */
- struct b43legacy_txpower_lo_control *lo_control;
- /* Values from b43legacy_calc_loopback_gain() */
- s16 max_lb_gain; /* Maximum Loopback gain in hdB */
- s16 trsw_rx_gain; /* TRSW RX gain in hdB */
- s16 lna_lod_gain; /* LNA lod */
- s16 lna_gain; /* LNA */
- s16 pga_gain; /* PGA */
-
- /* Desired TX power level (in dBm). This is set by the user and
- * adjusted in b43legacy_phy_xmitpower(). */
- u8 power_level;
-
- /* Values from b43legacy_calc_loopback_gain() */
- u16 loopback_gain[2];
-
- /* TX Power control values. */
- /* B/G PHY */
- struct {
- /* Current Radio Attenuation for TXpower recalculation. */
- u16 rfatt;
- /* Current Baseband Attenuation for TXpower recalculation. */
- u16 bbatt;
- /* Current TXpower control value for TXpower recalculation. */
- u16 txctl1;
- u16 txctl2;
- };
- /* A PHY */
- struct {
- u16 txpwr_offset;
- };
-
- /* Current Interference Mitigation mode */
- int interfmode;
- /* Stack of saved values from the Interference Mitigation code.
- * Each value in the stack is laid out as follows:
- * bit 0-11: offset
- * bit 12-15: register ID
- * bit 16-32: value
- * register ID is: 0x1 PHY, 0x2 Radio, 0x3 ILT
- */
-#define B43legacy_INTERFSTACK_SIZE 26
- u32 interfstack[B43legacy_INTERFSTACK_SIZE];
-
- /* Saved values from the NRSSI Slope calculation */
- s16 nrssi[2];
- s32 nrssislope;
- /* In memory nrssi lookup table. */
- s8 nrssi_lt[64];
-
- /* current channel */
- u8 channel;
-
- u16 lofcal;
-
- u16 initval;
-
- /* PHY TX errors counter. */
- atomic_t txerr_cnt;
-
-#if B43legacy_DEBUG
- /* Manual TX-power control enabled? */
- bool manual_txpower_control;
- /* PHY registers locked by b43legacy_phy_lock()? */
- bool phy_locked;
-#endif /* B43legacy_DEBUG */
-};
-
-/* Data structures for DMA transmission, per 80211 core. */
-struct b43legacy_dma {
- struct b43legacy_dmaring *tx_ring0;
- struct b43legacy_dmaring *tx_ring1;
- struct b43legacy_dmaring *tx_ring2;
- struct b43legacy_dmaring *tx_ring3;
- struct b43legacy_dmaring *tx_ring4;
- struct b43legacy_dmaring *tx_ring5;
-
- struct b43legacy_dmaring *rx_ring0;
- struct b43legacy_dmaring *rx_ring3; /* only on core.rev < 5 */
-
- u32 translation; /* Routing bits */
-};
-
-/* Data structures for PIO transmission, per 80211 core. */
-struct b43legacy_pio {
- struct b43legacy_pioqueue *queue0;
- struct b43legacy_pioqueue *queue1;
- struct b43legacy_pioqueue *queue2;
- struct b43legacy_pioqueue *queue3;
-};
-
-/* Context information for a noise calculation (Link Quality). */
-struct b43legacy_noise_calculation {
- u8 channel_at_start;
- bool calculation_running;
- u8 nr_samples;
- s8 samples[8][4];
-};
-
-struct b43legacy_stats {
- u8 link_noise;
- /* Store the last TX/RX times here for updating the leds. */
- unsigned long last_tx;
- unsigned long last_rx;
-};
-
-struct b43legacy_key {
- void *keyconf;
- bool enabled;
- u8 algorithm;
-};
-
-#define B43legacy_QOS_QUEUE_NUM 4
-
-struct b43legacy_wldev;
-
-/* QOS parameters for a queue. */
-struct b43legacy_qos_params {
- /* The QOS parameters */
- struct ieee80211_tx_queue_params p;
-};
-
-/* Data structure for the WLAN parts (802.11 cores) of the b43legacy chip. */
-struct b43legacy_wl {
- /* Pointer to the active wireless device on this chip */
- struct b43legacy_wldev *current_dev;
- /* Pointer to the ieee80211 hardware data structure */
- struct ieee80211_hw *hw;
-
- spinlock_t irq_lock; /* locks IRQ */
- struct mutex mutex; /* locks wireless core state */
- spinlock_t leds_lock; /* lock for leds */
-
- /* firmware loading work */
- struct work_struct firmware_load;
-
- /* We can only have one operating interface (802.11 core)
- * at a time. General information about this interface follows.
- */
-
- struct ieee80211_vif *vif;
- /* MAC address (can be NULL). */
- u8 mac_addr[ETH_ALEN];
- /* Current BSSID (can be NULL). */
- u8 bssid[ETH_ALEN];
- /* Interface type. (IEEE80211_IF_TYPE_XXX) */
- int if_type;
- /* Is the card operating in AP, STA or IBSS mode? */
- bool operating;
- /* filter flags */
- unsigned int filter_flags;
- /* Stats about the wireless interface */
- struct ieee80211_low_level_stats ieee_stats;
-
-#ifdef CONFIG_B43LEGACY_HWRNG
- struct hwrng rng;
- u8 rng_initialized;
- char rng_name[30 + 1];
-#endif
-
- /* List of all wireless devices on this chip */
- struct list_head devlist;
- u8 nr_devs;
-
- bool radiotap_enabled;
- bool radio_enabled;
-
- /* The beacon we are currently using (AP or IBSS mode).
- * This beacon stuff is protected by the irq_lock. */
- struct sk_buff *current_beacon;
- bool beacon0_uploaded;
- bool beacon1_uploaded;
- bool beacon_templates_virgin; /* Never wrote the templates? */
- struct work_struct beacon_update_trigger;
- /* The current QOS parameters for the 4 queues. */
- struct b43legacy_qos_params qos_params[B43legacy_QOS_QUEUE_NUM];
-
- /* Packet transmit work */
- struct work_struct tx_work;
-
- /* Queue of packets to be transmitted. */
- struct sk_buff_head tx_queue[B43legacy_QOS_QUEUE_NUM];
-
- /* Flag that implement the queues stopping. */
- bool tx_queue_stopped[B43legacy_QOS_QUEUE_NUM];
-
-};
-
-/* Pointers to the firmware data and meta information about it. */
-struct b43legacy_firmware {
- /* Microcode */
- const struct firmware *ucode;
- /* PCM code */
- const struct firmware *pcm;
- /* Initial MMIO values for the firmware */
- const struct firmware *initvals;
- /* Initial MMIO values for the firmware, band-specific */
- const struct firmware *initvals_band;
- /* Firmware revision */
- u16 rev;
- /* Firmware patchlevel */
- u16 patch;
-};
-
-/* Device (802.11 core) initialization status. */
-enum {
- B43legacy_STAT_UNINIT = 0, /* Uninitialized. */
- B43legacy_STAT_INITIALIZED = 1, /* Initialized, not yet started. */
- B43legacy_STAT_STARTED = 2, /* Up and running. */
-};
-#define b43legacy_status(wldev) atomic_read(&(wldev)->__init_status)
-#define b43legacy_set_status(wldev, stat) do { \
- atomic_set(&(wldev)->__init_status, (stat)); \
- smp_wmb(); \
- } while (0)
-
-/* *** --- HOW LOCKING WORKS IN B43legacy --- ***
- *
- * You should always acquire both, wl->mutex and wl->irq_lock unless:
- * - You don't need to acquire wl->irq_lock, if the interface is stopped.
- * - You don't need to acquire wl->mutex in the IRQ handler, IRQ tasklet
- * and packet TX path (and _ONLY_ there.)
- */
-
-/* Data structure for one wireless device (802.11 core) */
-struct b43legacy_wldev {
- struct ssb_device *dev;
- struct b43legacy_wl *wl;
-
- /* The device initialization status.
- * Use b43legacy_status() to query. */
- atomic_t __init_status;
- /* Saved init status for handling suspend. */
- int suspend_init_status;
-
- bool __using_pio; /* Using pio rather than dma. */
- bool bad_frames_preempt;/* Use "Bad Frames Preemption". */
- bool dfq_valid; /* Directed frame queue valid (IBSS PS mode, ATIM). */
- bool short_preamble; /* TRUE if using short preamble. */
- bool radio_hw_enable; /* State of radio hardware enable bit. */
-
- /* PHY/Radio device. */
- struct b43legacy_phy phy;
- union {
- /* DMA engines. */
- struct b43legacy_dma dma;
- /* PIO engines. */
- struct b43legacy_pio pio;
- };
-
- /* Various statistics about the physical device. */
- struct b43legacy_stats stats;
-
- /* The device LEDs. */
- struct b43legacy_led led_tx;
- struct b43legacy_led led_rx;
- struct b43legacy_led led_assoc;
- struct b43legacy_led led_radio;
-
- /* Reason code of the last interrupt. */
- u32 irq_reason;
- u32 dma_reason[6];
- /* The currently active generic-interrupt mask. */
- u32 irq_mask;
- /* Link Quality calculation context. */
- struct b43legacy_noise_calculation noisecalc;
- /* if > 0 MAC is suspended. if == 0 MAC is enabled. */
- int mac_suspended;
-
- /* Interrupt Service Routine tasklet (bottom-half) */
- struct tasklet_struct isr_tasklet;
-
- /* Periodic tasks */
- struct delayed_work periodic_work;
- unsigned int periodic_state;
-
- struct work_struct restart_work;
-
- /* encryption/decryption */
- u16 ktp; /* Key table pointer */
- u8 max_nr_keys;
- struct b43legacy_key key[58];
-
- /* Firmware data */
- struct b43legacy_firmware fw;
- const struct firmware *fwp; /* needed to pass fw pointer */
-
- /* completion struct for firmware loading */
- struct completion fw_load_complete;
-
- /* Devicelist in struct b43legacy_wl (all 802.11 cores) */
- struct list_head list;
-
- /* Debugging stuff follows. */
-#ifdef CONFIG_B43LEGACY_DEBUG
- struct b43legacy_dfsentry *dfsentry;
-#endif
-};
-
-
-static inline
-struct b43legacy_wl *hw_to_b43legacy_wl(struct ieee80211_hw *hw)
-{
- return hw->priv;
-}
-
-/* Helper function, which returns a boolean.
- * TRUE, if PIO is used; FALSE, if DMA is used.
- */
-#if defined(CONFIG_B43LEGACY_DMA) && defined(CONFIG_B43LEGACY_PIO)
-static inline
-int b43legacy_using_pio(struct b43legacy_wldev *dev)
-{
- return dev->__using_pio;
-}
-#elif defined(CONFIG_B43LEGACY_DMA)
-static inline
-int b43legacy_using_pio(struct b43legacy_wldev *dev)
-{
- return 0;
-}
-#elif defined(CONFIG_B43LEGACY_PIO)
-static inline
-int b43legacy_using_pio(struct b43legacy_wldev *dev)
-{
- return 1;
-}
-#else
-# error "Using neither DMA nor PIO? Confused..."
-#endif
-
-
-static inline
-struct b43legacy_wldev *dev_to_b43legacy_wldev(struct device *dev)
-{
- struct ssb_device *ssb_dev = dev_to_ssb_dev(dev);
- return ssb_get_drvdata(ssb_dev);
-}
-
-/* Is the device operating in a specified mode (IEEE80211_IF_TYPE_XXX). */
-static inline
-int b43legacy_is_mode(struct b43legacy_wl *wl, int type)
-{
- return (wl->operating &&
- wl->if_type == type);
-}
-
-static inline
-bool is_bcm_board_vendor(struct b43legacy_wldev *dev)
-{
- return (dev->dev->bus->boardinfo.vendor == PCI_VENDOR_ID_BROADCOM);
-}
-
-static inline
-u16 b43legacy_read16(struct b43legacy_wldev *dev, u16 offset)
-{
- return ssb_read16(dev->dev, offset);
-}
-
-static inline
-void b43legacy_write16(struct b43legacy_wldev *dev, u16 offset, u16 value)
-{
- ssb_write16(dev->dev, offset, value);
-}
-
-static inline
-u32 b43legacy_read32(struct b43legacy_wldev *dev, u16 offset)
-{
- return ssb_read32(dev->dev, offset);
-}
-
-static inline
-void b43legacy_write32(struct b43legacy_wldev *dev, u16 offset, u32 value)
-{
- ssb_write32(dev->dev, offset, value);
-}
-
-static inline
-struct b43legacy_lopair *b43legacy_get_lopair(struct b43legacy_phy *phy,
- u16 radio_attenuation,
- u16 baseband_attenuation)
-{
- return phy->_lo_pairs + (radio_attenuation
- + 14 * (baseband_attenuation / 2));
-}
-
-
-
-/* Message printing */
-__printf(2, 3)
-void b43legacyinfo(struct b43legacy_wl *wl, const char *fmt, ...);
-__printf(2, 3)
-void b43legacyerr(struct b43legacy_wl *wl, const char *fmt, ...);
-__printf(2, 3)
-void b43legacywarn(struct b43legacy_wl *wl, const char *fmt, ...);
-#if B43legacy_DEBUG
-__printf(2, 3)
-void b43legacydbg(struct b43legacy_wl *wl, const char *fmt, ...);
-#else /* DEBUG */
-# define b43legacydbg(wl, fmt...) do { /* nothing */ } while (0)
-#endif /* DEBUG */
-
-/* Macros for printing a value in Q5.2 format */
-#define Q52_FMT "%u.%u"
-#define Q52_ARG(q52) ((q52) / 4), (((q52) & 3) * 100 / 4)
-
-#endif /* B43legacy_H_ */
+++ /dev/null
-/*
-
- Broadcom B43legacy wireless driver
-
- debugfs driver debugging code
-
- Copyright (c) 2005-2007 Michael Buesch <m@bues.ch>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
- Boston, MA 02110-1301, USA.
-
-*/
-
-#include <linux/fs.h>
-#include <linux/debugfs.h>
-#include <linux/slab.h>
-#include <linux/netdevice.h>
-#include <linux/pci.h>
-#include <linux/mutex.h>
-
-#include "b43legacy.h"
-#include "main.h"
-#include "debugfs.h"
-#include "dma.h"
-#include "pio.h"
-#include "xmit.h"
-
-
-/* The root directory. */
-static struct dentry *rootdir;
-
-struct b43legacy_debugfs_fops {
- ssize_t (*read)(struct b43legacy_wldev *dev, char *buf, size_t bufsize);
- int (*write)(struct b43legacy_wldev *dev, const char *buf, size_t count);
- struct file_operations fops;
- /* Offset of struct b43legacy_dfs_file in struct b43legacy_dfsentry */
- size_t file_struct_offset;
- /* Take wl->irq_lock before calling read/write? */
- bool take_irqlock;
-};
-
-static inline
-struct b43legacy_dfs_file * fops_to_dfs_file(struct b43legacy_wldev *dev,
- const struct b43legacy_debugfs_fops *dfops)
-{
- void *p;
-
- p = dev->dfsentry;
- p += dfops->file_struct_offset;
-
- return p;
-}
-
-
-#define fappend(fmt, x...) \
- do { \
- if (bufsize - count) \
- count += snprintf(buf + count, \
- bufsize - count, \
- fmt , ##x); \
- else \
- printk(KERN_ERR "b43legacy: fappend overflow\n"); \
- } while (0)
-
-
-/* wl->irq_lock is locked */
-static ssize_t tsf_read_file(struct b43legacy_wldev *dev, char *buf, size_t bufsize)
-{
- ssize_t count = 0;
- u64 tsf;
-
- b43legacy_tsf_read(dev, &tsf);
- fappend("0x%08x%08x\n",
- (unsigned int)((tsf & 0xFFFFFFFF00000000ULL) >> 32),
- (unsigned int)(tsf & 0xFFFFFFFFULL));
-
- return count;
-}
-
-/* wl->irq_lock is locked */
-static int tsf_write_file(struct b43legacy_wldev *dev, const char *buf, size_t count)
-{
- u64 tsf;
-
- if (sscanf(buf, "%llu", (unsigned long long *)(&tsf)) != 1)
- return -EINVAL;
- b43legacy_tsf_write(dev, tsf);
-
- return 0;
-}
-
-/* wl->irq_lock is locked */
-static ssize_t ucode_regs_read_file(struct b43legacy_wldev *dev, char *buf, size_t bufsize)
-{
- ssize_t count = 0;
- int i;
-
- for (i = 0; i < 64; i++) {
- fappend("r%d = 0x%04x\n", i,
- b43legacy_shm_read16(dev, B43legacy_SHM_WIRELESS, i));
- }
-
- return count;
-}
-
-/* wl->irq_lock is locked */
-static ssize_t shm_read_file(struct b43legacy_wldev *dev, char *buf, size_t bufsize)
-{
- ssize_t count = 0;
- int i;
- u16 tmp;
- __le16 *le16buf = (__le16 *)buf;
-
- for (i = 0; i < 0x1000; i++) {
- if (bufsize < sizeof(tmp))
- break;
- tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 2 * i);
- le16buf[i] = cpu_to_le16(tmp);
- count += sizeof(tmp);
- bufsize -= sizeof(tmp);
- }
-
- return count;
-}
-
-static ssize_t txstat_read_file(struct b43legacy_wldev *dev, char *buf, size_t bufsize)
-{
- struct b43legacy_txstatus_log *log = &dev->dfsentry->txstatlog;
- ssize_t count = 0;
- unsigned long flags;
- int i, idx;
- struct b43legacy_txstatus *stat;
-
- spin_lock_irqsave(&log->lock, flags);
- if (log->end < 0) {
- fappend("Nothing transmitted, yet\n");
- goto out_unlock;
- }
- fappend("b43legacy TX status reports:\n\n"
- "index | cookie | seq | phy_stat | frame_count | "
- "rts_count | supp_reason | pm_indicated | "
- "intermediate | for_ampdu | acked\n" "---\n");
- i = log->end + 1;
- idx = 0;
- while (1) {
- if (i == B43legacy_NR_LOGGED_TXSTATUS)
- i = 0;
- stat = &(log->log[i]);
- if (stat->cookie) {
- fappend("%03d | "
- "0x%04X | 0x%04X | 0x%02X | "
- "0x%X | 0x%X | "
- "%u | %u | "
- "%u | %u | %u\n",
- idx,
- stat->cookie, stat->seq, stat->phy_stat,
- stat->frame_count, stat->rts_count,
- stat->supp_reason, stat->pm_indicated,
- stat->intermediate, stat->for_ampdu,
- stat->acked);
- idx++;
- }
- if (i == log->end)
- break;
- i++;
- }
-out_unlock:
- spin_unlock_irqrestore(&log->lock, flags);
-
- return count;
-}
-
-/* wl->irq_lock is locked */
-static int restart_write_file(struct b43legacy_wldev *dev, const char *buf, size_t count)
-{
- int err = 0;
-
- if (count > 0 && buf[0] == '1') {
- b43legacy_controller_restart(dev, "manually restarted");
- } else
- err = -EINVAL;
-
- return err;
-}
-
-#undef fappend
-
-static ssize_t b43legacy_debugfs_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- struct b43legacy_wldev *dev;
- struct b43legacy_debugfs_fops *dfops;
- struct b43legacy_dfs_file *dfile;
- ssize_t uninitialized_var(ret);
- char *buf;
- const size_t bufsize = 1024 * 16; /* 16 KiB buffer */
- const size_t buforder = get_order(bufsize);
- int err = 0;
-
- if (!count)
- return 0;
- dev = file->private_data;
- if (!dev)
- return -ENODEV;
-
- mutex_lock(&dev->wl->mutex);
- if (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED) {
- err = -ENODEV;
- goto out_unlock;
- }
-
- dfops = container_of(file->f_op, struct b43legacy_debugfs_fops, fops);
- if (!dfops->read) {
- err = -ENOSYS;
- goto out_unlock;
- }
- dfile = fops_to_dfs_file(dev, dfops);
-
- if (!dfile->buffer) {
- buf = (char *)__get_free_pages(GFP_KERNEL, buforder);
- if (!buf) {
- err = -ENOMEM;
- goto out_unlock;
- }
- memset(buf, 0, bufsize);
- if (dfops->take_irqlock) {
- spin_lock_irq(&dev->wl->irq_lock);
- ret = dfops->read(dev, buf, bufsize);
- spin_unlock_irq(&dev->wl->irq_lock);
- } else
- ret = dfops->read(dev, buf, bufsize);
- if (ret <= 0) {
- free_pages((unsigned long)buf, buforder);
- err = ret;
- goto out_unlock;
- }
- dfile->data_len = ret;
- dfile->buffer = buf;
- }
-
- ret = simple_read_from_buffer(userbuf, count, ppos,
- dfile->buffer,
- dfile->data_len);
- if (*ppos >= dfile->data_len) {
- free_pages((unsigned long)dfile->buffer, buforder);
- dfile->buffer = NULL;
- dfile->data_len = 0;
- }
-out_unlock:
- mutex_unlock(&dev->wl->mutex);
-
- return err ? err : ret;
-}
-
-static ssize_t b43legacy_debugfs_write(struct file *file,
- const char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- struct b43legacy_wldev *dev;
- struct b43legacy_debugfs_fops *dfops;
- char *buf;
- int err = 0;
-
- if (!count)
- return 0;
- if (count > PAGE_SIZE)
- return -E2BIG;
- dev = file->private_data;
- if (!dev)
- return -ENODEV;
-
- mutex_lock(&dev->wl->mutex);
- if (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED) {
- err = -ENODEV;
- goto out_unlock;
- }
-
- dfops = container_of(file->f_op, struct b43legacy_debugfs_fops, fops);
- if (!dfops->write) {
- err = -ENOSYS;
- goto out_unlock;
- }
-
- buf = (char *)get_zeroed_page(GFP_KERNEL);
- if (!buf) {
- err = -ENOMEM;
- goto out_unlock;
- }
- if (copy_from_user(buf, userbuf, count)) {
- err = -EFAULT;
- goto out_freepage;
- }
- if (dfops->take_irqlock) {
- spin_lock_irq(&dev->wl->irq_lock);
- err = dfops->write(dev, buf, count);
- spin_unlock_irq(&dev->wl->irq_lock);
- } else
- err = dfops->write(dev, buf, count);
- if (err)
- goto out_freepage;
-
-out_freepage:
- free_page((unsigned long)buf);
-out_unlock:
- mutex_unlock(&dev->wl->mutex);
-
- return err ? err : count;
-}
-
-
-#define B43legacy_DEBUGFS_FOPS(name, _read, _write, _take_irqlock) \
- static struct b43legacy_debugfs_fops fops_##name = { \
- .read = _read, \
- .write = _write, \
- .fops = { \
- .open = simple_open, \
- .read = b43legacy_debugfs_read, \
- .write = b43legacy_debugfs_write, \
- .llseek = generic_file_llseek, \
- }, \
- .file_struct_offset = offsetof(struct b43legacy_dfsentry, \
- file_##name), \
- .take_irqlock = _take_irqlock, \
- }
-
-B43legacy_DEBUGFS_FOPS(tsf, tsf_read_file, tsf_write_file, 1);
-B43legacy_DEBUGFS_FOPS(ucode_regs, ucode_regs_read_file, NULL, 1);
-B43legacy_DEBUGFS_FOPS(shm, shm_read_file, NULL, 1);
-B43legacy_DEBUGFS_FOPS(txstat, txstat_read_file, NULL, 0);
-B43legacy_DEBUGFS_FOPS(restart, NULL, restart_write_file, 1);
-
-
-int b43legacy_debug(struct b43legacy_wldev *dev, enum b43legacy_dyndbg feature)
-{
- return !!(dev->dfsentry && dev->dfsentry->dyn_debug[feature]);
-}
-
-static void b43legacy_remove_dynamic_debug(struct b43legacy_wldev *dev)
-{
- struct b43legacy_dfsentry *e = dev->dfsentry;
- int i;
-
- for (i = 0; i < __B43legacy_NR_DYNDBG; i++)
- debugfs_remove(e->dyn_debug_dentries[i]);
-}
-
-static void b43legacy_add_dynamic_debug(struct b43legacy_wldev *dev)
-{
- struct b43legacy_dfsentry *e = dev->dfsentry;
- struct dentry *d;
-
-#define add_dyn_dbg(name, id, initstate) do { \
- e->dyn_debug[id] = (initstate); \
- d = debugfs_create_bool(name, 0600, e->subdir, \
- &(e->dyn_debug[id])); \
- if (!IS_ERR(d)) \
- e->dyn_debug_dentries[id] = d; \
- } while (0)
-
- add_dyn_dbg("debug_xmitpower", B43legacy_DBG_XMITPOWER, false);
- add_dyn_dbg("debug_dmaoverflow", B43legacy_DBG_DMAOVERFLOW, false);
- add_dyn_dbg("debug_dmaverbose", B43legacy_DBG_DMAVERBOSE, false);
- add_dyn_dbg("debug_pwork_fast", B43legacy_DBG_PWORK_FAST, false);
- add_dyn_dbg("debug_pwork_stop", B43legacy_DBG_PWORK_STOP, false);
-
-#undef add_dyn_dbg
-}
-
-void b43legacy_debugfs_add_device(struct b43legacy_wldev *dev)
-{
- struct b43legacy_dfsentry *e;
- struct b43legacy_txstatus_log *log;
- char devdir[16];
-
- B43legacy_WARN_ON(!dev);
- e = kzalloc(sizeof(*e), GFP_KERNEL);
- if (!e) {
- b43legacyerr(dev->wl, "debugfs: add device OOM\n");
- return;
- }
- e->dev = dev;
- log = &e->txstatlog;
- log->log = kcalloc(B43legacy_NR_LOGGED_TXSTATUS,
- sizeof(struct b43legacy_txstatus), GFP_KERNEL);
- if (!log->log) {
- b43legacyerr(dev->wl, "debugfs: add device txstatus OOM\n");
- kfree(e);
- return;
- }
- log->end = -1;
- spin_lock_init(&log->lock);
-
- dev->dfsentry = e;
-
- snprintf(devdir, sizeof(devdir), "%s", wiphy_name(dev->wl->hw->wiphy));
- e->subdir = debugfs_create_dir(devdir, rootdir);
- if (!e->subdir || IS_ERR(e->subdir)) {
- if (e->subdir == ERR_PTR(-ENODEV)) {
- b43legacydbg(dev->wl, "DebugFS (CONFIG_DEBUG_FS) not "
- "enabled in kernel config\n");
- } else {
- b43legacyerr(dev->wl, "debugfs: cannot create %s directory\n",
- devdir);
- }
- dev->dfsentry = NULL;
- kfree(log->log);
- kfree(e);
- return;
- }
-
-#define ADD_FILE(name, mode) \
- do { \
- struct dentry *d; \
- d = debugfs_create_file(__stringify(name), \
- mode, e->subdir, dev, \
- &fops_##name.fops); \
- e->file_##name.dentry = NULL; \
- if (!IS_ERR(d)) \
- e->file_##name.dentry = d; \
- } while (0)
-
-
- ADD_FILE(tsf, 0600);
- ADD_FILE(ucode_regs, 0400);
- ADD_FILE(shm, 0400);
- ADD_FILE(txstat, 0400);
- ADD_FILE(restart, 0200);
-
-#undef ADD_FILE
-
- b43legacy_add_dynamic_debug(dev);
-}
-
-void b43legacy_debugfs_remove_device(struct b43legacy_wldev *dev)
-{
- struct b43legacy_dfsentry *e;
-
- if (!dev)
- return;
- e = dev->dfsentry;
- if (!e)
- return;
- b43legacy_remove_dynamic_debug(dev);
-
- debugfs_remove(e->file_tsf.dentry);
- debugfs_remove(e->file_ucode_regs.dentry);
- debugfs_remove(e->file_shm.dentry);
- debugfs_remove(e->file_txstat.dentry);
- debugfs_remove(e->file_restart.dentry);
-
- debugfs_remove(e->subdir);
- kfree(e->txstatlog.log);
- kfree(e);
-}
-
-void b43legacy_debugfs_log_txstat(struct b43legacy_wldev *dev,
- const struct b43legacy_txstatus *status)
-{
- struct b43legacy_dfsentry *e = dev->dfsentry;
- struct b43legacy_txstatus_log *log;
- struct b43legacy_txstatus *cur;
- int i;
-
- if (!e)
- return;
- log = &e->txstatlog;
- B43legacy_WARN_ON(!irqs_disabled());
- spin_lock(&log->lock);
- i = log->end + 1;
- if (i == B43legacy_NR_LOGGED_TXSTATUS)
- i = 0;
- log->end = i;
- cur = &(log->log[i]);
- memcpy(cur, status, sizeof(*cur));
- spin_unlock(&log->lock);
-}
-
-void b43legacy_debugfs_init(void)
-{
- rootdir = debugfs_create_dir(KBUILD_MODNAME, NULL);
- if (IS_ERR(rootdir))
- rootdir = NULL;
-}
-
-void b43legacy_debugfs_exit(void)
-{
- debugfs_remove(rootdir);
-}
+++ /dev/null
-#ifndef B43legacy_DEBUGFS_H_
-#define B43legacy_DEBUGFS_H_
-
-struct b43legacy_wldev;
-struct b43legacy_txstatus;
-
-enum b43legacy_dyndbg { /* Dynamic debugging features */
- B43legacy_DBG_XMITPOWER,
- B43legacy_DBG_DMAOVERFLOW,
- B43legacy_DBG_DMAVERBOSE,
- B43legacy_DBG_PWORK_FAST,
- B43legacy_DBG_PWORK_STOP,
- __B43legacy_NR_DYNDBG,
-};
-
-
-#ifdef CONFIG_B43LEGACY_DEBUG
-
-struct dentry;
-
-#define B43legacy_NR_LOGGED_TXSTATUS 100
-
-struct b43legacy_txstatus_log {
- struct b43legacy_txstatus *log;
- int end;
- spinlock_t lock; /* lock for debugging */
-};
-
-struct b43legacy_dfs_file {
- struct dentry *dentry;
- char *buffer;
- size_t data_len;
-};
-
-struct b43legacy_dfsentry {
- struct b43legacy_wldev *dev;
- struct dentry *subdir;
-
- struct b43legacy_dfs_file file_tsf;
- struct b43legacy_dfs_file file_ucode_regs;
- struct b43legacy_dfs_file file_shm;
- struct b43legacy_dfs_file file_txstat;
- struct b43legacy_dfs_file file_txpower_g;
- struct b43legacy_dfs_file file_restart;
- struct b43legacy_dfs_file file_loctls;
-
- struct b43legacy_txstatus_log txstatlog;
-
- /* Enabled/Disabled list for the dynamic debugging features. */
- bool dyn_debug[__B43legacy_NR_DYNDBG];
- /* Dentries for the dynamic debugging entries. */
- struct dentry *dyn_debug_dentries[__B43legacy_NR_DYNDBG];
-};
-
-int b43legacy_debug(struct b43legacy_wldev *dev,
- enum b43legacy_dyndbg feature);
-
-void b43legacy_debugfs_init(void);
-void b43legacy_debugfs_exit(void);
-void b43legacy_debugfs_add_device(struct b43legacy_wldev *dev);
-void b43legacy_debugfs_remove_device(struct b43legacy_wldev *dev);
-void b43legacy_debugfs_log_txstat(struct b43legacy_wldev *dev,
- const struct b43legacy_txstatus *status);
-
-#else /* CONFIG_B43LEGACY_DEBUG*/
-
-static inline
-int b43legacy_debug(struct b43legacy_wldev *dev,
- enum b43legacy_dyndbg feature)
-{
- return 0;
-}
-
-static inline
-void b43legacy_debugfs_init(void) { }
-static inline
-void b43legacy_debugfs_exit(void) { }
-static inline
-void b43legacy_debugfs_add_device(struct b43legacy_wldev *dev) { }
-static inline
-void b43legacy_debugfs_remove_device(struct b43legacy_wldev *dev) { }
-static inline
-void b43legacy_debugfs_log_txstat(struct b43legacy_wldev *dev,
- const struct b43legacy_txstatus *status)
- { }
-
-#endif /* CONFIG_B43LEGACY_DEBUG*/
-
-#endif /* B43legacy_DEBUGFS_H_ */
+++ /dev/null
-/*
-
- Broadcom B43legacy wireless driver
-
- DMA ringbuffer and descriptor allocation/management
-
- Copyright (c) 2005, 2006 Michael Buesch <m@bues.ch>
-
- Some code in this file is derived from the b44.c driver
- Copyright (C) 2002 David S. Miller
- Copyright (C) Pekka Pietikainen
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
- Boston, MA 02110-1301, USA.
-
-*/
-
-#include "b43legacy.h"
-#include "dma.h"
-#include "main.h"
-#include "debugfs.h"
-#include "xmit.h"
-
-#include <linux/dma-mapping.h>
-#include <linux/pci.h>
-#include <linux/delay.h>
-#include <linux/skbuff.h>
-#include <linux/slab.h>
-#include <net/dst.h>
-
-/* 32bit DMA ops. */
-static
-struct b43legacy_dmadesc32 *op32_idx2desc(struct b43legacy_dmaring *ring,
- int slot,
- struct b43legacy_dmadesc_meta **meta)
-{
- struct b43legacy_dmadesc32 *desc;
-
- *meta = &(ring->meta[slot]);
- desc = ring->descbase;
- desc = &(desc[slot]);
-
- return desc;
-}
-
-static void op32_fill_descriptor(struct b43legacy_dmaring *ring,
- struct b43legacy_dmadesc32 *desc,
- dma_addr_t dmaaddr, u16 bufsize,
- int start, int end, int irq)
-{
- struct b43legacy_dmadesc32 *descbase = ring->descbase;
- int slot;
- u32 ctl;
- u32 addr;
- u32 addrext;
-
- slot = (int)(desc - descbase);
- B43legacy_WARN_ON(!(slot >= 0 && slot < ring->nr_slots));
-
- addr = (u32)(dmaaddr & ~SSB_DMA_TRANSLATION_MASK);
- addrext = (u32)(dmaaddr & SSB_DMA_TRANSLATION_MASK)
- >> SSB_DMA_TRANSLATION_SHIFT;
- addr |= ring->dev->dma.translation;
- ctl = (bufsize - ring->frameoffset)
- & B43legacy_DMA32_DCTL_BYTECNT;
- if (slot == ring->nr_slots - 1)
- ctl |= B43legacy_DMA32_DCTL_DTABLEEND;
- if (start)
- ctl |= B43legacy_DMA32_DCTL_FRAMESTART;
- if (end)
- ctl |= B43legacy_DMA32_DCTL_FRAMEEND;
- if (irq)
- ctl |= B43legacy_DMA32_DCTL_IRQ;
- ctl |= (addrext << B43legacy_DMA32_DCTL_ADDREXT_SHIFT)
- & B43legacy_DMA32_DCTL_ADDREXT_MASK;
-
- desc->control = cpu_to_le32(ctl);
- desc->address = cpu_to_le32(addr);
-}
-
-static void op32_poke_tx(struct b43legacy_dmaring *ring, int slot)
-{
- b43legacy_dma_write(ring, B43legacy_DMA32_TXINDEX,
- (u32)(slot * sizeof(struct b43legacy_dmadesc32)));
-}
-
-static void op32_tx_suspend(struct b43legacy_dmaring *ring)
-{
- b43legacy_dma_write(ring, B43legacy_DMA32_TXCTL,
- b43legacy_dma_read(ring, B43legacy_DMA32_TXCTL)
- | B43legacy_DMA32_TXSUSPEND);
-}
-
-static void op32_tx_resume(struct b43legacy_dmaring *ring)
-{
- b43legacy_dma_write(ring, B43legacy_DMA32_TXCTL,
- b43legacy_dma_read(ring, B43legacy_DMA32_TXCTL)
- & ~B43legacy_DMA32_TXSUSPEND);
-}
-
-static int op32_get_current_rxslot(struct b43legacy_dmaring *ring)
-{
- u32 val;
-
- val = b43legacy_dma_read(ring, B43legacy_DMA32_RXSTATUS);
- val &= B43legacy_DMA32_RXDPTR;
-
- return (val / sizeof(struct b43legacy_dmadesc32));
-}
-
-static void op32_set_current_rxslot(struct b43legacy_dmaring *ring,
- int slot)
-{
- b43legacy_dma_write(ring, B43legacy_DMA32_RXINDEX,
- (u32)(slot * sizeof(struct b43legacy_dmadesc32)));
-}
-
-static inline int free_slots(struct b43legacy_dmaring *ring)
-{
- return (ring->nr_slots - ring->used_slots);
-}
-
-static inline int next_slot(struct b43legacy_dmaring *ring, int slot)
-{
- B43legacy_WARN_ON(!(slot >= -1 && slot <= ring->nr_slots - 1));
- if (slot == ring->nr_slots - 1)
- return 0;
- return slot + 1;
-}
-
-static inline int prev_slot(struct b43legacy_dmaring *ring, int slot)
-{
- B43legacy_WARN_ON(!(slot >= 0 && slot <= ring->nr_slots - 1));
- if (slot == 0)
- return ring->nr_slots - 1;
- return slot - 1;
-}
-
-#ifdef CONFIG_B43LEGACY_DEBUG
-static void update_max_used_slots(struct b43legacy_dmaring *ring,
- int current_used_slots)
-{
- if (current_used_slots <= ring->max_used_slots)
- return;
- ring->max_used_slots = current_used_slots;
- if (b43legacy_debug(ring->dev, B43legacy_DBG_DMAVERBOSE))
- b43legacydbg(ring->dev->wl,
- "max_used_slots increased to %d on %s ring %d\n",
- ring->max_used_slots,
- ring->tx ? "TX" : "RX",
- ring->index);
-}
-#else
-static inline
-void update_max_used_slots(struct b43legacy_dmaring *ring,
- int current_used_slots)
-{ }
-#endif /* DEBUG */
-
-/* Request a slot for usage. */
-static inline
-int request_slot(struct b43legacy_dmaring *ring)
-{
- int slot;
-
- B43legacy_WARN_ON(!ring->tx);
- B43legacy_WARN_ON(ring->stopped);
- B43legacy_WARN_ON(free_slots(ring) == 0);
-
- slot = next_slot(ring, ring->current_slot);
- ring->current_slot = slot;
- ring->used_slots++;
-
- update_max_used_slots(ring, ring->used_slots);
-
- return slot;
-}
-
-/* Mac80211-queue to b43legacy-ring mapping */
-static struct b43legacy_dmaring *priority_to_txring(
- struct b43legacy_wldev *dev,
- int queue_priority)
-{
- struct b43legacy_dmaring *ring;
-
-/*FIXME: For now we always run on TX-ring-1 */
-return dev->dma.tx_ring1;
-
- /* 0 = highest priority */
- switch (queue_priority) {
- default:
- B43legacy_WARN_ON(1);
- /* fallthrough */
- case 0:
- ring = dev->dma.tx_ring3;
- break;
- case 1:
- ring = dev->dma.tx_ring2;
- break;
- case 2:
- ring = dev->dma.tx_ring1;
- break;
- case 3:
- ring = dev->dma.tx_ring0;
- break;
- case 4:
- ring = dev->dma.tx_ring4;
- break;
- case 5:
- ring = dev->dma.tx_ring5;
- break;
- }
-
- return ring;
-}
-
-/* Bcm4301-ring to mac80211-queue mapping */
-static inline int txring_to_priority(struct b43legacy_dmaring *ring)
-{
- static const u8 idx_to_prio[] =
- { 3, 2, 1, 0, 4, 5, };
-
-/*FIXME: have only one queue, for now */
-return 0;
-
- return idx_to_prio[ring->index];
-}
-
-
-static u16 b43legacy_dmacontroller_base(enum b43legacy_dmatype type,
- int controller_idx)
-{
- static const u16 map32[] = {
- B43legacy_MMIO_DMA32_BASE0,
- B43legacy_MMIO_DMA32_BASE1,
- B43legacy_MMIO_DMA32_BASE2,
- B43legacy_MMIO_DMA32_BASE3,
- B43legacy_MMIO_DMA32_BASE4,
- B43legacy_MMIO_DMA32_BASE5,
- };
-
- B43legacy_WARN_ON(!(controller_idx >= 0 &&
- controller_idx < ARRAY_SIZE(map32)));
- return map32[controller_idx];
-}
-
-static inline
-dma_addr_t map_descbuffer(struct b43legacy_dmaring *ring,
- unsigned char *buf,
- size_t len,
- int tx)
-{
- dma_addr_t dmaaddr;
-
- if (tx)
- dmaaddr = dma_map_single(ring->dev->dev->dma_dev,
- buf, len,
- DMA_TO_DEVICE);
- else
- dmaaddr = dma_map_single(ring->dev->dev->dma_dev,
- buf, len,
- DMA_FROM_DEVICE);
-
- return dmaaddr;
-}
-
-static inline
-void unmap_descbuffer(struct b43legacy_dmaring *ring,
- dma_addr_t addr,
- size_t len,
- int tx)
-{
- if (tx)
- dma_unmap_single(ring->dev->dev->dma_dev,
- addr, len,
- DMA_TO_DEVICE);
- else
- dma_unmap_single(ring->dev->dev->dma_dev,
- addr, len,
- DMA_FROM_DEVICE);
-}
-
-static inline
-void sync_descbuffer_for_cpu(struct b43legacy_dmaring *ring,
- dma_addr_t addr,
- size_t len)
-{
- B43legacy_WARN_ON(ring->tx);
-
- dma_sync_single_for_cpu(ring->dev->dev->dma_dev,
- addr, len, DMA_FROM_DEVICE);
-}
-
-static inline
-void sync_descbuffer_for_device(struct b43legacy_dmaring *ring,
- dma_addr_t addr,
- size_t len)
-{
- B43legacy_WARN_ON(ring->tx);
-
- dma_sync_single_for_device(ring->dev->dev->dma_dev,
- addr, len, DMA_FROM_DEVICE);
-}
-
-static inline
-void free_descriptor_buffer(struct b43legacy_dmaring *ring,
- struct b43legacy_dmadesc_meta *meta,
- int irq_context)
-{
- if (meta->skb) {
- if (irq_context)
- dev_kfree_skb_irq(meta->skb);
- else
- dev_kfree_skb(meta->skb);
- meta->skb = NULL;
- }
-}
-
-static int alloc_ringmemory(struct b43legacy_dmaring *ring)
-{
- /* GFP flags must match the flags in free_ringmemory()! */
- ring->descbase = dma_zalloc_coherent(ring->dev->dev->dma_dev,
- B43legacy_DMA_RINGMEMSIZE,
- &(ring->dmabase), GFP_KERNEL);
- if (!ring->descbase)
- return -ENOMEM;
-
- return 0;
-}
-
-static void free_ringmemory(struct b43legacy_dmaring *ring)
-{
- dma_free_coherent(ring->dev->dev->dma_dev, B43legacy_DMA_RINGMEMSIZE,
- ring->descbase, ring->dmabase);
-}
-
-/* Reset the RX DMA channel */
-static int b43legacy_dmacontroller_rx_reset(struct b43legacy_wldev *dev,
- u16 mmio_base,
- enum b43legacy_dmatype type)
-{
- int i;
- u32 value;
- u16 offset;
-
- might_sleep();
-
- offset = B43legacy_DMA32_RXCTL;
- b43legacy_write32(dev, mmio_base + offset, 0);
- for (i = 0; i < 10; i++) {
- offset = B43legacy_DMA32_RXSTATUS;
- value = b43legacy_read32(dev, mmio_base + offset);
- value &= B43legacy_DMA32_RXSTATE;
- if (value == B43legacy_DMA32_RXSTAT_DISABLED) {
- i = -1;
- break;
- }
- msleep(1);
- }
- if (i != -1) {
- b43legacyerr(dev->wl, "DMA RX reset timed out\n");
- return -ENODEV;
- }
-
- return 0;
-}
-
-/* Reset the RX DMA channel */
-static int b43legacy_dmacontroller_tx_reset(struct b43legacy_wldev *dev,
- u16 mmio_base,
- enum b43legacy_dmatype type)
-{
- int i;
- u32 value;
- u16 offset;
-
- might_sleep();
-
- for (i = 0; i < 10; i++) {
- offset = B43legacy_DMA32_TXSTATUS;
- value = b43legacy_read32(dev, mmio_base + offset);
- value &= B43legacy_DMA32_TXSTATE;
- if (value == B43legacy_DMA32_TXSTAT_DISABLED ||
- value == B43legacy_DMA32_TXSTAT_IDLEWAIT ||
- value == B43legacy_DMA32_TXSTAT_STOPPED)
- break;
- msleep(1);
- }
- offset = B43legacy_DMA32_TXCTL;
- b43legacy_write32(dev, mmio_base + offset, 0);
- for (i = 0; i < 10; i++) {
- offset = B43legacy_DMA32_TXSTATUS;
- value = b43legacy_read32(dev, mmio_base + offset);
- value &= B43legacy_DMA32_TXSTATE;
- if (value == B43legacy_DMA32_TXSTAT_DISABLED) {
- i = -1;
- break;
- }
- msleep(1);
- }
- if (i != -1) {
- b43legacyerr(dev->wl, "DMA TX reset timed out\n");
- return -ENODEV;
- }
- /* ensure the reset is completed. */
- msleep(1);
-
- return 0;
-}
-
-/* Check if a DMA mapping address is invalid. */
-static bool b43legacy_dma_mapping_error(struct b43legacy_dmaring *ring,
- dma_addr_t addr,
- size_t buffersize,
- bool dma_to_device)
-{
- if (unlikely(dma_mapping_error(ring->dev->dev->dma_dev, addr)))
- return true;
-
- switch (ring->type) {
- case B43legacy_DMA_30BIT:
- if ((u64)addr + buffersize > (1ULL << 30))
- goto address_error;
- break;
- case B43legacy_DMA_32BIT:
- if ((u64)addr + buffersize > (1ULL << 32))
- goto address_error;
- break;
- }
-
- /* The address is OK. */
- return false;
-
-address_error:
- /* We can't support this address. Unmap it again. */
- unmap_descbuffer(ring, addr, buffersize, dma_to_device);
-
- return true;
-}
-
-static int setup_rx_descbuffer(struct b43legacy_dmaring *ring,
- struct b43legacy_dmadesc32 *desc,
- struct b43legacy_dmadesc_meta *meta,
- gfp_t gfp_flags)
-{
- struct b43legacy_rxhdr_fw3 *rxhdr;
- struct b43legacy_hwtxstatus *txstat;
- dma_addr_t dmaaddr;
- struct sk_buff *skb;
-
- B43legacy_WARN_ON(ring->tx);
-
- skb = __dev_alloc_skb(ring->rx_buffersize, gfp_flags);
- if (unlikely(!skb))
- return -ENOMEM;
- dmaaddr = map_descbuffer(ring, skb->data,
- ring->rx_buffersize, 0);
- if (b43legacy_dma_mapping_error(ring, dmaaddr, ring->rx_buffersize, 0)) {
- /* ugh. try to realloc in zone_dma */
- gfp_flags |= GFP_DMA;
-
- dev_kfree_skb_any(skb);
-
- skb = __dev_alloc_skb(ring->rx_buffersize, gfp_flags);
- if (unlikely(!skb))
- return -ENOMEM;
- dmaaddr = map_descbuffer(ring, skb->data,
- ring->rx_buffersize, 0);
- }
-
- if (b43legacy_dma_mapping_error(ring, dmaaddr, ring->rx_buffersize, 0)) {
- dev_kfree_skb_any(skb);
- return -EIO;
- }
-
- meta->skb = skb;
- meta->dmaaddr = dmaaddr;
- op32_fill_descriptor(ring, desc, dmaaddr, ring->rx_buffersize, 0, 0, 0);
-
- rxhdr = (struct b43legacy_rxhdr_fw3 *)(skb->data);
- rxhdr->frame_len = 0;
- txstat = (struct b43legacy_hwtxstatus *)(skb->data);
- txstat->cookie = 0;
-
- return 0;
-}
-
-/* Allocate the initial descbuffers.
- * This is used for an RX ring only.
- */
-static int alloc_initial_descbuffers(struct b43legacy_dmaring *ring)
-{
- int i;
- int err = -ENOMEM;
- struct b43legacy_dmadesc32 *desc;
- struct b43legacy_dmadesc_meta *meta;
-
- for (i = 0; i < ring->nr_slots; i++) {
- desc = op32_idx2desc(ring, i, &meta);
-
- err = setup_rx_descbuffer(ring, desc, meta, GFP_KERNEL);
- if (err) {
- b43legacyerr(ring->dev->wl,
- "Failed to allocate initial descbuffers\n");
- goto err_unwind;
- }
- }
- mb(); /* all descbuffer setup before next line */
- ring->used_slots = ring->nr_slots;
- err = 0;
-out:
- return err;
-
-err_unwind:
- for (i--; i >= 0; i--) {
- desc = op32_idx2desc(ring, i, &meta);
-
- unmap_descbuffer(ring, meta->dmaaddr, ring->rx_buffersize, 0);
- dev_kfree_skb(meta->skb);
- }
- goto out;
-}
-
-/* Do initial setup of the DMA controller.
- * Reset the controller, write the ring busaddress
- * and switch the "enable" bit on.
- */
-static int dmacontroller_setup(struct b43legacy_dmaring *ring)
-{
- int err = 0;
- u32 value;
- u32 addrext;
- u32 trans = ring->dev->dma.translation;
- u32 ringbase = (u32)(ring->dmabase);
-
- if (ring->tx) {
- addrext = (ringbase & SSB_DMA_TRANSLATION_MASK)
- >> SSB_DMA_TRANSLATION_SHIFT;
- value = B43legacy_DMA32_TXENABLE;
- value |= (addrext << B43legacy_DMA32_TXADDREXT_SHIFT)
- & B43legacy_DMA32_TXADDREXT_MASK;
- b43legacy_dma_write(ring, B43legacy_DMA32_TXCTL, value);
- b43legacy_dma_write(ring, B43legacy_DMA32_TXRING,
- (ringbase & ~SSB_DMA_TRANSLATION_MASK)
- | trans);
- } else {
- err = alloc_initial_descbuffers(ring);
- if (err)
- goto out;
-
- addrext = (ringbase & SSB_DMA_TRANSLATION_MASK)
- >> SSB_DMA_TRANSLATION_SHIFT;
- value = (ring->frameoffset <<
- B43legacy_DMA32_RXFROFF_SHIFT);
- value |= B43legacy_DMA32_RXENABLE;
- value |= (addrext << B43legacy_DMA32_RXADDREXT_SHIFT)
- & B43legacy_DMA32_RXADDREXT_MASK;
- b43legacy_dma_write(ring, B43legacy_DMA32_RXCTL, value);
- b43legacy_dma_write(ring, B43legacy_DMA32_RXRING,
- (ringbase & ~SSB_DMA_TRANSLATION_MASK)
- | trans);
- b43legacy_dma_write(ring, B43legacy_DMA32_RXINDEX, 200);
- }
-
-out:
- return err;
-}
-
-/* Shutdown the DMA controller. */
-static void dmacontroller_cleanup(struct b43legacy_dmaring *ring)
-{
- if (ring->tx) {
- b43legacy_dmacontroller_tx_reset(ring->dev, ring->mmio_base,
- ring->type);
- b43legacy_dma_write(ring, B43legacy_DMA32_TXRING, 0);
- } else {
- b43legacy_dmacontroller_rx_reset(ring->dev, ring->mmio_base,
- ring->type);
- b43legacy_dma_write(ring, B43legacy_DMA32_RXRING, 0);
- }
-}
-
-static void free_all_descbuffers(struct b43legacy_dmaring *ring)
-{
- struct b43legacy_dmadesc_meta *meta;
- int i;
-
- if (!ring->used_slots)
- return;
- for (i = 0; i < ring->nr_slots; i++) {
- op32_idx2desc(ring, i, &meta);
-
- if (!meta->skb) {
- B43legacy_WARN_ON(!ring->tx);
- continue;
- }
- if (ring->tx)
- unmap_descbuffer(ring, meta->dmaaddr,
- meta->skb->len, 1);
- else
- unmap_descbuffer(ring, meta->dmaaddr,
- ring->rx_buffersize, 0);
- free_descriptor_buffer(ring, meta, 0);
- }
-}
-
-static u64 supported_dma_mask(struct b43legacy_wldev *dev)
-{
- u32 tmp;
- u16 mmio_base;
-
- mmio_base = b43legacy_dmacontroller_base(0, 0);
- b43legacy_write32(dev,
- mmio_base + B43legacy_DMA32_TXCTL,
- B43legacy_DMA32_TXADDREXT_MASK);
- tmp = b43legacy_read32(dev, mmio_base +
- B43legacy_DMA32_TXCTL);
- if (tmp & B43legacy_DMA32_TXADDREXT_MASK)
- return DMA_BIT_MASK(32);
-
- return DMA_BIT_MASK(30);
-}
-
-static enum b43legacy_dmatype dma_mask_to_engine_type(u64 dmamask)
-{
- if (dmamask == DMA_BIT_MASK(30))
- return B43legacy_DMA_30BIT;
- if (dmamask == DMA_BIT_MASK(32))
- return B43legacy_DMA_32BIT;
- B43legacy_WARN_ON(1);
- return B43legacy_DMA_30BIT;
-}
-
-/* Main initialization function. */
-static
-struct b43legacy_dmaring *b43legacy_setup_dmaring(struct b43legacy_wldev *dev,
- int controller_index,
- int for_tx,
- enum b43legacy_dmatype type)
-{
- struct b43legacy_dmaring *ring;
- int err;
- int nr_slots;
- dma_addr_t dma_test;
-
- ring = kzalloc(sizeof(*ring), GFP_KERNEL);
- if (!ring)
- goto out;
- ring->type = type;
- ring->dev = dev;
-
- nr_slots = B43legacy_RXRING_SLOTS;
- if (for_tx)
- nr_slots = B43legacy_TXRING_SLOTS;
-
- ring->meta = kcalloc(nr_slots, sizeof(struct b43legacy_dmadesc_meta),
- GFP_KERNEL);
- if (!ring->meta)
- goto err_kfree_ring;
- if (for_tx) {
- ring->txhdr_cache = kcalloc(nr_slots,
- sizeof(struct b43legacy_txhdr_fw3),
- GFP_KERNEL);
- if (!ring->txhdr_cache)
- goto err_kfree_meta;
-
- /* test for ability to dma to txhdr_cache */
- dma_test = dma_map_single(dev->dev->dma_dev, ring->txhdr_cache,
- sizeof(struct b43legacy_txhdr_fw3),
- DMA_TO_DEVICE);
-
- if (b43legacy_dma_mapping_error(ring, dma_test,
- sizeof(struct b43legacy_txhdr_fw3), 1)) {
- /* ugh realloc */
- kfree(ring->txhdr_cache);
- ring->txhdr_cache = kcalloc(nr_slots,
- sizeof(struct b43legacy_txhdr_fw3),
- GFP_KERNEL | GFP_DMA);
- if (!ring->txhdr_cache)
- goto err_kfree_meta;
-
- dma_test = dma_map_single(dev->dev->dma_dev,
- ring->txhdr_cache,
- sizeof(struct b43legacy_txhdr_fw3),
- DMA_TO_DEVICE);
-
- if (b43legacy_dma_mapping_error(ring, dma_test,
- sizeof(struct b43legacy_txhdr_fw3), 1))
- goto err_kfree_txhdr_cache;
- }
-
- dma_unmap_single(dev->dev->dma_dev, dma_test,
- sizeof(struct b43legacy_txhdr_fw3),
- DMA_TO_DEVICE);
- }
-
- ring->nr_slots = nr_slots;
- ring->mmio_base = b43legacy_dmacontroller_base(type, controller_index);
- ring->index = controller_index;
- if (for_tx) {
- ring->tx = true;
- ring->current_slot = -1;
- } else {
- if (ring->index == 0) {
- ring->rx_buffersize = B43legacy_DMA0_RX_BUFFERSIZE;
- ring->frameoffset = B43legacy_DMA0_RX_FRAMEOFFSET;
- } else if (ring->index == 3) {
- ring->rx_buffersize = B43legacy_DMA3_RX_BUFFERSIZE;
- ring->frameoffset = B43legacy_DMA3_RX_FRAMEOFFSET;
- } else
- B43legacy_WARN_ON(1);
- }
-#ifdef CONFIG_B43LEGACY_DEBUG
- ring->last_injected_overflow = jiffies;
-#endif
-
- err = alloc_ringmemory(ring);
- if (err)
- goto err_kfree_txhdr_cache;
- err = dmacontroller_setup(ring);
- if (err)
- goto err_free_ringmemory;
-
-out:
- return ring;
-
-err_free_ringmemory:
- free_ringmemory(ring);
-err_kfree_txhdr_cache:
- kfree(ring->txhdr_cache);
-err_kfree_meta:
- kfree(ring->meta);
-err_kfree_ring:
- kfree(ring);
- ring = NULL;
- goto out;
-}
-
-/* Main cleanup function. */
-static void b43legacy_destroy_dmaring(struct b43legacy_dmaring *ring)
-{
- if (!ring)
- return;
-
- b43legacydbg(ring->dev->wl, "DMA-%u 0x%04X (%s) max used slots:"
- " %d/%d\n", (unsigned int)(ring->type), ring->mmio_base,
- (ring->tx) ? "TX" : "RX", ring->max_used_slots,
- ring->nr_slots);
- /* Device IRQs are disabled prior entering this function,
- * so no need to take care of concurrency with rx handler stuff.
- */
- dmacontroller_cleanup(ring);
- free_all_descbuffers(ring);
- free_ringmemory(ring);
-
- kfree(ring->txhdr_cache);
- kfree(ring->meta);
- kfree(ring);
-}
-
-void b43legacy_dma_free(struct b43legacy_wldev *dev)
-{
- struct b43legacy_dma *dma;
-
- if (b43legacy_using_pio(dev))
- return;
- dma = &dev->dma;
-
- b43legacy_destroy_dmaring(dma->rx_ring3);
- dma->rx_ring3 = NULL;
- b43legacy_destroy_dmaring(dma->rx_ring0);
- dma->rx_ring0 = NULL;
-
- b43legacy_destroy_dmaring(dma->tx_ring5);
- dma->tx_ring5 = NULL;
- b43legacy_destroy_dmaring(dma->tx_ring4);
- dma->tx_ring4 = NULL;
- b43legacy_destroy_dmaring(dma->tx_ring3);
- dma->tx_ring3 = NULL;
- b43legacy_destroy_dmaring(dma->tx_ring2);
- dma->tx_ring2 = NULL;
- b43legacy_destroy_dmaring(dma->tx_ring1);
- dma->tx_ring1 = NULL;
- b43legacy_destroy_dmaring(dma->tx_ring0);
- dma->tx_ring0 = NULL;
-}
-
-static int b43legacy_dma_set_mask(struct b43legacy_wldev *dev, u64 mask)
-{
- u64 orig_mask = mask;
- bool fallback = false;
- int err;
-
- /* Try to set the DMA mask. If it fails, try falling back to a
- * lower mask, as we can always also support a lower one. */
- while (1) {
- err = dma_set_mask_and_coherent(dev->dev->dma_dev, mask);
- if (!err)
- break;
- if (mask == DMA_BIT_MASK(64)) {
- mask = DMA_BIT_MASK(32);
- fallback = true;
- continue;
- }
- if (mask == DMA_BIT_MASK(32)) {
- mask = DMA_BIT_MASK(30);
- fallback = true;
- continue;
- }
- b43legacyerr(dev->wl, "The machine/kernel does not support "
- "the required %u-bit DMA mask\n",
- (unsigned int)dma_mask_to_engine_type(orig_mask));
- return -EOPNOTSUPP;
- }
- if (fallback) {
- b43legacyinfo(dev->wl, "DMA mask fallback from %u-bit to %u-"
- "bit\n",
- (unsigned int)dma_mask_to_engine_type(orig_mask),
- (unsigned int)dma_mask_to_engine_type(mask));
- }
-
- return 0;
-}
-
-int b43legacy_dma_init(struct b43legacy_wldev *dev)
-{
- struct b43legacy_dma *dma = &dev->dma;
- struct b43legacy_dmaring *ring;
- int err;
- u64 dmamask;
- enum b43legacy_dmatype type;
-
- dmamask = supported_dma_mask(dev);
- type = dma_mask_to_engine_type(dmamask);
- err = b43legacy_dma_set_mask(dev, dmamask);
- if (err) {
-#ifdef CONFIG_B43LEGACY_PIO
- b43legacywarn(dev->wl, "DMA for this device not supported. "
- "Falling back to PIO\n");
- dev->__using_pio = true;
- return -EAGAIN;
-#else
- b43legacyerr(dev->wl, "DMA for this device not supported and "
- "no PIO support compiled in\n");
- return -EOPNOTSUPP;
-#endif
- }
- dma->translation = ssb_dma_translation(dev->dev);
-
- err = -ENOMEM;
- /* setup TX DMA channels. */
- ring = b43legacy_setup_dmaring(dev, 0, 1, type);
- if (!ring)
- goto out;
- dma->tx_ring0 = ring;
-
- ring = b43legacy_setup_dmaring(dev, 1, 1, type);
- if (!ring)
- goto err_destroy_tx0;
- dma->tx_ring1 = ring;
-
- ring = b43legacy_setup_dmaring(dev, 2, 1, type);
- if (!ring)
- goto err_destroy_tx1;
- dma->tx_ring2 = ring;
-
- ring = b43legacy_setup_dmaring(dev, 3, 1, type);
- if (!ring)
- goto err_destroy_tx2;
- dma->tx_ring3 = ring;
-
- ring = b43legacy_setup_dmaring(dev, 4, 1, type);
- if (!ring)
- goto err_destroy_tx3;
- dma->tx_ring4 = ring;
-
- ring = b43legacy_setup_dmaring(dev, 5, 1, type);
- if (!ring)
- goto err_destroy_tx4;
- dma->tx_ring5 = ring;
-
- /* setup RX DMA channels. */
- ring = b43legacy_setup_dmaring(dev, 0, 0, type);
- if (!ring)
- goto err_destroy_tx5;
- dma->rx_ring0 = ring;
-
- if (dev->dev->id.revision < 5) {
- ring = b43legacy_setup_dmaring(dev, 3, 0, type);
- if (!ring)
- goto err_destroy_rx0;
- dma->rx_ring3 = ring;
- }
-
- b43legacydbg(dev->wl, "%u-bit DMA initialized\n", (unsigned int)type);
- err = 0;
-out:
- return err;
-
-err_destroy_rx0:
- b43legacy_destroy_dmaring(dma->rx_ring0);
- dma->rx_ring0 = NULL;
-err_destroy_tx5:
- b43legacy_destroy_dmaring(dma->tx_ring5);
- dma->tx_ring5 = NULL;
-err_destroy_tx4:
- b43legacy_destroy_dmaring(dma->tx_ring4);
- dma->tx_ring4 = NULL;
-err_destroy_tx3:
- b43legacy_destroy_dmaring(dma->tx_ring3);
- dma->tx_ring3 = NULL;
-err_destroy_tx2:
- b43legacy_destroy_dmaring(dma->tx_ring2);
- dma->tx_ring2 = NULL;
-err_destroy_tx1:
- b43legacy_destroy_dmaring(dma->tx_ring1);
- dma->tx_ring1 = NULL;
-err_destroy_tx0:
- b43legacy_destroy_dmaring(dma->tx_ring0);
- dma->tx_ring0 = NULL;
- goto out;
-}
-
-/* Generate a cookie for the TX header. */
-static u16 generate_cookie(struct b43legacy_dmaring *ring,
- int slot)
-{
- u16 cookie = 0x1000;
-
- /* Use the upper 4 bits of the cookie as
- * DMA controller ID and store the slot number
- * in the lower 12 bits.
- * Note that the cookie must never be 0, as this
- * is a special value used in RX path.
- */
- switch (ring->index) {
- case 0:
- cookie = 0xA000;
- break;
- case 1:
- cookie = 0xB000;
- break;
- case 2:
- cookie = 0xC000;
- break;
- case 3:
- cookie = 0xD000;
- break;
- case 4:
- cookie = 0xE000;
- break;
- case 5:
- cookie = 0xF000;
- break;
- }
- B43legacy_WARN_ON(!(((u16)slot & 0xF000) == 0x0000));
- cookie |= (u16)slot;
-
- return cookie;
-}
-
-/* Inspect a cookie and find out to which controller/slot it belongs. */
-static
-struct b43legacy_dmaring *parse_cookie(struct b43legacy_wldev *dev,
- u16 cookie, int *slot)
-{
- struct b43legacy_dma *dma = &dev->dma;
- struct b43legacy_dmaring *ring = NULL;
-
- switch (cookie & 0xF000) {
- case 0xA000:
- ring = dma->tx_ring0;
- break;
- case 0xB000:
- ring = dma->tx_ring1;
- break;
- case 0xC000:
- ring = dma->tx_ring2;
- break;
- case 0xD000:
- ring = dma->tx_ring3;
- break;
- case 0xE000:
- ring = dma->tx_ring4;
- break;
- case 0xF000:
- ring = dma->tx_ring5;
- break;
- default:
- B43legacy_WARN_ON(1);
- }
- *slot = (cookie & 0x0FFF);
- B43legacy_WARN_ON(!(ring && *slot >= 0 && *slot < ring->nr_slots));
-
- return ring;
-}
-
-static int dma_tx_fragment(struct b43legacy_dmaring *ring,
- struct sk_buff **in_skb)
-{
- struct sk_buff *skb = *in_skb;
- struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- u8 *header;
- int slot, old_top_slot, old_used_slots;
- int err;
- struct b43legacy_dmadesc32 *desc;
- struct b43legacy_dmadesc_meta *meta;
- struct b43legacy_dmadesc_meta *meta_hdr;
- struct sk_buff *bounce_skb;
-
-#define SLOTS_PER_PACKET 2
- B43legacy_WARN_ON(skb_shinfo(skb)->nr_frags != 0);
-
- old_top_slot = ring->current_slot;
- old_used_slots = ring->used_slots;
-
- /* Get a slot for the header. */
- slot = request_slot(ring);
- desc = op32_idx2desc(ring, slot, &meta_hdr);
- memset(meta_hdr, 0, sizeof(*meta_hdr));
-
- header = &(ring->txhdr_cache[slot * sizeof(
- struct b43legacy_txhdr_fw3)]);
- err = b43legacy_generate_txhdr(ring->dev, header,
- skb->data, skb->len, info,
- generate_cookie(ring, slot));
- if (unlikely(err)) {
- ring->current_slot = old_top_slot;
- ring->used_slots = old_used_slots;
- return err;
- }
-
- meta_hdr->dmaaddr = map_descbuffer(ring, (unsigned char *)header,
- sizeof(struct b43legacy_txhdr_fw3), 1);
- if (b43legacy_dma_mapping_error(ring, meta_hdr->dmaaddr,
- sizeof(struct b43legacy_txhdr_fw3), 1)) {
- ring->current_slot = old_top_slot;
- ring->used_slots = old_used_slots;
- return -EIO;
- }
- op32_fill_descriptor(ring, desc, meta_hdr->dmaaddr,
- sizeof(struct b43legacy_txhdr_fw3), 1, 0, 0);
-
- /* Get a slot for the payload. */
- slot = request_slot(ring);
- desc = op32_idx2desc(ring, slot, &meta);
- memset(meta, 0, sizeof(*meta));
-
- meta->skb = skb;
- meta->is_last_fragment = true;
-
- meta->dmaaddr = map_descbuffer(ring, skb->data, skb->len, 1);
- /* create a bounce buffer in zone_dma on mapping failure. */
- if (b43legacy_dma_mapping_error(ring, meta->dmaaddr, skb->len, 1)) {
- bounce_skb = alloc_skb(skb->len, GFP_ATOMIC | GFP_DMA);
- if (!bounce_skb) {
- ring->current_slot = old_top_slot;
- ring->used_slots = old_used_slots;
- err = -ENOMEM;
- goto out_unmap_hdr;
- }
-
- memcpy(skb_put(bounce_skb, skb->len), skb->data, skb->len);
- memcpy(bounce_skb->cb, skb->cb, sizeof(skb->cb));
- bounce_skb->dev = skb->dev;
- skb_set_queue_mapping(bounce_skb, skb_get_queue_mapping(skb));
- info = IEEE80211_SKB_CB(bounce_skb);
-
- dev_kfree_skb_any(skb);
- skb = bounce_skb;
- *in_skb = bounce_skb;
- meta->skb = skb;
- meta->dmaaddr = map_descbuffer(ring, skb->data, skb->len, 1);
- if (b43legacy_dma_mapping_error(ring, meta->dmaaddr, skb->len, 1)) {
- ring->current_slot = old_top_slot;
- ring->used_slots = old_used_slots;
- err = -EIO;
- goto out_free_bounce;
- }
- }
-
- op32_fill_descriptor(ring, desc, meta->dmaaddr,
- skb->len, 0, 1, 1);
-
- wmb(); /* previous stuff MUST be done */
- /* Now transfer the whole frame. */
- op32_poke_tx(ring, next_slot(ring, slot));
- return 0;
-
-out_free_bounce:
- dev_kfree_skb_any(skb);
-out_unmap_hdr:
- unmap_descbuffer(ring, meta_hdr->dmaaddr,
- sizeof(struct b43legacy_txhdr_fw3), 1);
- return err;
-}
-
-static inline
-int should_inject_overflow(struct b43legacy_dmaring *ring)
-{
-#ifdef CONFIG_B43LEGACY_DEBUG
- if (unlikely(b43legacy_debug(ring->dev,
- B43legacy_DBG_DMAOVERFLOW))) {
- /* Check if we should inject another ringbuffer overflow
- * to test handling of this situation in the stack. */
- unsigned long next_overflow;
-
- next_overflow = ring->last_injected_overflow + HZ;
- if (time_after(jiffies, next_overflow)) {
- ring->last_injected_overflow = jiffies;
- b43legacydbg(ring->dev->wl,
- "Injecting TX ring overflow on "
- "DMA controller %d\n", ring->index);
- return 1;
- }
- }
-#endif /* CONFIG_B43LEGACY_DEBUG */
- return 0;
-}
-
-int b43legacy_dma_tx(struct b43legacy_wldev *dev,
- struct sk_buff *skb)
-{
- struct b43legacy_dmaring *ring;
- int err = 0;
-
- ring = priority_to_txring(dev, skb_get_queue_mapping(skb));
- B43legacy_WARN_ON(!ring->tx);
-
- if (unlikely(ring->stopped)) {
- /* We get here only because of a bug in mac80211.
- * Because of a race, one packet may be queued after
- * the queue is stopped, thus we got called when we shouldn't.
- * For now, just refuse the transmit. */
- if (b43legacy_debug(dev, B43legacy_DBG_DMAVERBOSE))
- b43legacyerr(dev->wl, "Packet after queue stopped\n");
- return -ENOSPC;
- }
-
- if (unlikely(WARN_ON(free_slots(ring) < SLOTS_PER_PACKET))) {
- /* If we get here, we have a real error with the queue
- * full, but queues not stopped. */
- b43legacyerr(dev->wl, "DMA queue overflow\n");
- return -ENOSPC;
- }
-
- /* dma_tx_fragment might reallocate the skb, so invalidate pointers pointing
- * into the skb data or cb now. */
- err = dma_tx_fragment(ring, &skb);
- if (unlikely(err == -ENOKEY)) {
- /* Drop this packet, as we don't have the encryption key
- * anymore and must not transmit it unencrypted. */
- dev_kfree_skb_any(skb);
- return 0;
- }
- if (unlikely(err)) {
- b43legacyerr(dev->wl, "DMA tx mapping failure\n");
- return err;
- }
- if ((free_slots(ring) < SLOTS_PER_PACKET) ||
- should_inject_overflow(ring)) {
- /* This TX ring is full. */
- unsigned int skb_mapping = skb_get_queue_mapping(skb);
- ieee80211_stop_queue(dev->wl->hw, skb_mapping);
- dev->wl->tx_queue_stopped[skb_mapping] = 1;
- ring->stopped = true;
- if (b43legacy_debug(dev, B43legacy_DBG_DMAVERBOSE))
- b43legacydbg(dev->wl, "Stopped TX ring %d\n",
- ring->index);
- }
- return err;
-}
-
-void b43legacy_dma_handle_txstatus(struct b43legacy_wldev *dev,
- const struct b43legacy_txstatus *status)
-{
- struct b43legacy_dmaring *ring;
- struct b43legacy_dmadesc_meta *meta;
- int retry_limit;
- int slot;
- int firstused;
-
- ring = parse_cookie(dev, status->cookie, &slot);
- if (unlikely(!ring))
- return;
- B43legacy_WARN_ON(!ring->tx);
-
- /* Sanity check: TX packets are processed in-order on one ring.
- * Check if the slot deduced from the cookie really is the first
- * used slot. */
- firstused = ring->current_slot - ring->used_slots + 1;
- if (firstused < 0)
- firstused = ring->nr_slots + firstused;
- if (unlikely(slot != firstused)) {
- /* This possibly is a firmware bug and will result in
- * malfunction, memory leaks and/or stall of DMA functionality.
- */
- b43legacydbg(dev->wl, "Out of order TX status report on DMA "
- "ring %d. Expected %d, but got %d\n",
- ring->index, firstused, slot);
- return;
- }
-
- while (1) {
- B43legacy_WARN_ON(!(slot >= 0 && slot < ring->nr_slots));
- op32_idx2desc(ring, slot, &meta);
-
- if (meta->skb)
- unmap_descbuffer(ring, meta->dmaaddr,
- meta->skb->len, 1);
- else
- unmap_descbuffer(ring, meta->dmaaddr,
- sizeof(struct b43legacy_txhdr_fw3),
- 1);
-
- if (meta->is_last_fragment) {
- struct ieee80211_tx_info *info;
- BUG_ON(!meta->skb);
- info = IEEE80211_SKB_CB(meta->skb);
-
- /* preserve the confiured retry limit before clearing the status
- * The xmit function has overwritten the rc's value with the actual
- * retry limit done by the hardware */
- retry_limit = info->status.rates[0].count;
- ieee80211_tx_info_clear_status(info);
-
- if (status->acked)
- info->flags |= IEEE80211_TX_STAT_ACK;
-
- if (status->rts_count > dev->wl->hw->conf.short_frame_max_tx_count) {
- /*
- * If the short retries (RTS, not data frame) have exceeded
- * the limit, the hw will not have tried the selected rate,
- * but will have used the fallback rate instead.
- * Don't let the rate control count attempts for the selected
- * rate in this case, otherwise the statistics will be off.
- */
- info->status.rates[0].count = 0;
- info->status.rates[1].count = status->frame_count;
- } else {
- if (status->frame_count > retry_limit) {
- info->status.rates[0].count = retry_limit;
- info->status.rates[1].count = status->frame_count -
- retry_limit;
-
- } else {
- info->status.rates[0].count = status->frame_count;
- info->status.rates[1].idx = -1;
- }
- }
-
- /* Call back to inform the ieee80211 subsystem about the
- * status of the transmission.
- * Some fields of txstat are already filled in dma_tx().
- */
- ieee80211_tx_status_irqsafe(dev->wl->hw, meta->skb);
- /* skb is freed by ieee80211_tx_status_irqsafe() */
- meta->skb = NULL;
- } else {
- /* No need to call free_descriptor_buffer here, as
- * this is only the txhdr, which is not allocated.
- */
- B43legacy_WARN_ON(meta->skb != NULL);
- }
-
- /* Everything unmapped and free'd. So it's not used anymore. */
- ring->used_slots--;
-
- if (meta->is_last_fragment)
- break;
- slot = next_slot(ring, slot);
- }
- dev->stats.last_tx = jiffies;
- if (ring->stopped) {
- B43legacy_WARN_ON(free_slots(ring) < SLOTS_PER_PACKET);
- ring->stopped = false;
- }
-
- if (dev->wl->tx_queue_stopped[ring->queue_prio]) {
- dev->wl->tx_queue_stopped[ring->queue_prio] = 0;
- } else {
- /* If the driver queue is running wake the corresponding
- * mac80211 queue. */
- ieee80211_wake_queue(dev->wl->hw, ring->queue_prio);
- if (b43legacy_debug(dev, B43legacy_DBG_DMAVERBOSE))
- b43legacydbg(dev->wl, "Woke up TX ring %d\n",
- ring->index);
- }
- /* Add work to the queue. */
- ieee80211_queue_work(dev->wl->hw, &dev->wl->tx_work);
-}
-
-static void dma_rx(struct b43legacy_dmaring *ring,
- int *slot)
-{
- struct b43legacy_dmadesc32 *desc;
- struct b43legacy_dmadesc_meta *meta;
- struct b43legacy_rxhdr_fw3 *rxhdr;
- struct sk_buff *skb;
- u16 len;
- int err;
- dma_addr_t dmaaddr;
-
- desc = op32_idx2desc(ring, *slot, &meta);
-
- sync_descbuffer_for_cpu(ring, meta->dmaaddr, ring->rx_buffersize);
- skb = meta->skb;
-
- if (ring->index == 3) {
- /* We received an xmit status. */
- struct b43legacy_hwtxstatus *hw =
- (struct b43legacy_hwtxstatus *)skb->data;
- int i = 0;
-
- while (hw->cookie == 0) {
- if (i > 100)
- break;
- i++;
- udelay(2);
- barrier();
- }
- b43legacy_handle_hwtxstatus(ring->dev, hw);
- /* recycle the descriptor buffer. */
- sync_descbuffer_for_device(ring, meta->dmaaddr,
- ring->rx_buffersize);
-
- return;
- }
- rxhdr = (struct b43legacy_rxhdr_fw3 *)skb->data;
- len = le16_to_cpu(rxhdr->frame_len);
- if (len == 0) {
- int i = 0;
-
- do {
- udelay(2);
- barrier();
- len = le16_to_cpu(rxhdr->frame_len);
- } while (len == 0 && i++ < 5);
- if (unlikely(len == 0)) {
- /* recycle the descriptor buffer. */
- sync_descbuffer_for_device(ring, meta->dmaaddr,
- ring->rx_buffersize);
- goto drop;
- }
- }
- if (unlikely(len > ring->rx_buffersize)) {
- /* The data did not fit into one descriptor buffer
- * and is split over multiple buffers.
- * This should never happen, as we try to allocate buffers
- * big enough. So simply ignore this packet.
- */
- int cnt = 0;
- s32 tmp = len;
-
- while (1) {
- desc = op32_idx2desc(ring, *slot, &meta);
- /* recycle the descriptor buffer. */
- sync_descbuffer_for_device(ring, meta->dmaaddr,
- ring->rx_buffersize);
- *slot = next_slot(ring, *slot);
- cnt++;
- tmp -= ring->rx_buffersize;
- if (tmp <= 0)
- break;
- }
- b43legacyerr(ring->dev->wl, "DMA RX buffer too small "
- "(len: %u, buffer: %u, nr-dropped: %d)\n",
- len, ring->rx_buffersize, cnt);
- goto drop;
- }
-
- dmaaddr = meta->dmaaddr;
- err = setup_rx_descbuffer(ring, desc, meta, GFP_ATOMIC);
- if (unlikely(err)) {
- b43legacydbg(ring->dev->wl, "DMA RX: setup_rx_descbuffer()"
- " failed\n");
- sync_descbuffer_for_device(ring, dmaaddr,
- ring->rx_buffersize);
- goto drop;
- }
-
- unmap_descbuffer(ring, dmaaddr, ring->rx_buffersize, 0);
- skb_put(skb, len + ring->frameoffset);
- skb_pull(skb, ring->frameoffset);
-
- b43legacy_rx(ring->dev, skb, rxhdr);
-drop:
- return;
-}
-
-void b43legacy_dma_rx(struct b43legacy_dmaring *ring)
-{
- int slot;
- int current_slot;
- int used_slots = 0;
-
- B43legacy_WARN_ON(ring->tx);
- current_slot = op32_get_current_rxslot(ring);
- B43legacy_WARN_ON(!(current_slot >= 0 && current_slot <
- ring->nr_slots));
-
- slot = ring->current_slot;
- for (; slot != current_slot; slot = next_slot(ring, slot)) {
- dma_rx(ring, &slot);
- update_max_used_slots(ring, ++used_slots);
- }
- op32_set_current_rxslot(ring, slot);
- ring->current_slot = slot;
-}
-
-static void b43legacy_dma_tx_suspend_ring(struct b43legacy_dmaring *ring)
-{
- B43legacy_WARN_ON(!ring->tx);
- op32_tx_suspend(ring);
-}
-
-static void b43legacy_dma_tx_resume_ring(struct b43legacy_dmaring *ring)
-{
- B43legacy_WARN_ON(!ring->tx);
- op32_tx_resume(ring);
-}
-
-void b43legacy_dma_tx_suspend(struct b43legacy_wldev *dev)
-{
- b43legacy_power_saving_ctl_bits(dev, -1, 1);
- b43legacy_dma_tx_suspend_ring(dev->dma.tx_ring0);
- b43legacy_dma_tx_suspend_ring(dev->dma.tx_ring1);
- b43legacy_dma_tx_suspend_ring(dev->dma.tx_ring2);
- b43legacy_dma_tx_suspend_ring(dev->dma.tx_ring3);
- b43legacy_dma_tx_suspend_ring(dev->dma.tx_ring4);
- b43legacy_dma_tx_suspend_ring(dev->dma.tx_ring5);
-}
-
-void b43legacy_dma_tx_resume(struct b43legacy_wldev *dev)
-{
- b43legacy_dma_tx_resume_ring(dev->dma.tx_ring5);
- b43legacy_dma_tx_resume_ring(dev->dma.tx_ring4);
- b43legacy_dma_tx_resume_ring(dev->dma.tx_ring3);
- b43legacy_dma_tx_resume_ring(dev->dma.tx_ring2);
- b43legacy_dma_tx_resume_ring(dev->dma.tx_ring1);
- b43legacy_dma_tx_resume_ring(dev->dma.tx_ring0);
- b43legacy_power_saving_ctl_bits(dev, -1, -1);
-}
+++ /dev/null
-#ifndef B43legacy_DMA_H_
-#define B43legacy_DMA_H_
-
-#include <linux/list.h>
-#include <linux/spinlock.h>
-#include <linux/workqueue.h>
-#include <linux/linkage.h>
-#include <linux/atomic.h>
-
-#include "b43legacy.h"
-
-
-/* DMA-Interrupt reasons. */
-#define B43legacy_DMAIRQ_FATALMASK ((1 << 10) | (1 << 11) | (1 << 12) \
- | (1 << 14) | (1 << 15))
-#define B43legacy_DMAIRQ_NONFATALMASK (1 << 13)
-#define B43legacy_DMAIRQ_RX_DONE (1 << 16)
-
-
-/*** 32-bit DMA Engine. ***/
-
-/* 32-bit DMA controller registers. */
-#define B43legacy_DMA32_TXCTL 0x00
-#define B43legacy_DMA32_TXENABLE 0x00000001
-#define B43legacy_DMA32_TXSUSPEND 0x00000002
-#define B43legacy_DMA32_TXLOOPBACK 0x00000004
-#define B43legacy_DMA32_TXFLUSH 0x00000010
-#define B43legacy_DMA32_TXADDREXT_MASK 0x00030000
-#define B43legacy_DMA32_TXADDREXT_SHIFT 16
-#define B43legacy_DMA32_TXRING 0x04
-#define B43legacy_DMA32_TXINDEX 0x08
-#define B43legacy_DMA32_TXSTATUS 0x0C
-#define B43legacy_DMA32_TXDPTR 0x00000FFF
-#define B43legacy_DMA32_TXSTATE 0x0000F000
-#define B43legacy_DMA32_TXSTAT_DISABLED 0x00000000
-#define B43legacy_DMA32_TXSTAT_ACTIVE 0x00001000
-#define B43legacy_DMA32_TXSTAT_IDLEWAIT 0x00002000
-#define B43legacy_DMA32_TXSTAT_STOPPED 0x00003000
-#define B43legacy_DMA32_TXSTAT_SUSP 0x00004000
-#define B43legacy_DMA32_TXERROR 0x000F0000
-#define B43legacy_DMA32_TXERR_NOERR 0x00000000
-#define B43legacy_DMA32_TXERR_PROT 0x00010000
-#define B43legacy_DMA32_TXERR_UNDERRUN 0x00020000
-#define B43legacy_DMA32_TXERR_BUFREAD 0x00030000
-#define B43legacy_DMA32_TXERR_DESCREAD 0x00040000
-#define B43legacy_DMA32_TXACTIVE 0xFFF00000
-#define B43legacy_DMA32_RXCTL 0x10
-#define B43legacy_DMA32_RXENABLE 0x00000001
-#define B43legacy_DMA32_RXFROFF_MASK 0x000000FE
-#define B43legacy_DMA32_RXFROFF_SHIFT 1
-#define B43legacy_DMA32_RXDIRECTFIFO 0x00000100
-#define B43legacy_DMA32_RXADDREXT_MASK 0x00030000
-#define B43legacy_DMA32_RXADDREXT_SHIFT 16
-#define B43legacy_DMA32_RXRING 0x14
-#define B43legacy_DMA32_RXINDEX 0x18
-#define B43legacy_DMA32_RXSTATUS 0x1C
-#define B43legacy_DMA32_RXDPTR 0x00000FFF
-#define B43legacy_DMA32_RXSTATE 0x0000F000
-#define B43legacy_DMA32_RXSTAT_DISABLED 0x00000000
-#define B43legacy_DMA32_RXSTAT_ACTIVE 0x00001000
-#define B43legacy_DMA32_RXSTAT_IDLEWAIT 0x00002000
-#define B43legacy_DMA32_RXSTAT_STOPPED 0x00003000
-#define B43legacy_DMA32_RXERROR 0x000F0000
-#define B43legacy_DMA32_RXERR_NOERR 0x00000000
-#define B43legacy_DMA32_RXERR_PROT 0x00010000
-#define B43legacy_DMA32_RXERR_OVERFLOW 0x00020000
-#define B43legacy_DMA32_RXERR_BUFWRITE 0x00030000
-#define B43legacy_DMA32_RXERR_DESCREAD 0x00040000
-#define B43legacy_DMA32_RXACTIVE 0xFFF00000
-
-/* 32-bit DMA descriptor. */
-struct b43legacy_dmadesc32 {
- __le32 control;
- __le32 address;
-} __packed;
-#define B43legacy_DMA32_DCTL_BYTECNT 0x00001FFF
-#define B43legacy_DMA32_DCTL_ADDREXT_MASK 0x00030000
-#define B43legacy_DMA32_DCTL_ADDREXT_SHIFT 16
-#define B43legacy_DMA32_DCTL_DTABLEEND 0x10000000
-#define B43legacy_DMA32_DCTL_IRQ 0x20000000
-#define B43legacy_DMA32_DCTL_FRAMEEND 0x40000000
-#define B43legacy_DMA32_DCTL_FRAMESTART 0x80000000
-
-
-/* Misc DMA constants */
-#define B43legacy_DMA_RINGMEMSIZE PAGE_SIZE
-#define B43legacy_DMA0_RX_FRAMEOFFSET 30
-#define B43legacy_DMA3_RX_FRAMEOFFSET 0
-
-
-/* DMA engine tuning knobs */
-#define B43legacy_TXRING_SLOTS 128
-#define B43legacy_RXRING_SLOTS 64
-#define B43legacy_DMA0_RX_BUFFERSIZE (2304 + 100)
-#define B43legacy_DMA3_RX_BUFFERSIZE 16
-
-
-
-#ifdef CONFIG_B43LEGACY_DMA
-
-
-struct sk_buff;
-struct b43legacy_private;
-struct b43legacy_txstatus;
-
-
-struct b43legacy_dmadesc_meta {
- /* The kernel DMA-able buffer. */
- struct sk_buff *skb;
- /* DMA base bus-address of the descriptor buffer. */
- dma_addr_t dmaaddr;
- /* ieee80211 TX status. Only used once per 802.11 frag. */
- bool is_last_fragment;
-};
-
-enum b43legacy_dmatype {
- B43legacy_DMA_30BIT = 30,
- B43legacy_DMA_32BIT = 32,
-};
-
-struct b43legacy_dmaring {
- /* Kernel virtual base address of the ring memory. */
- void *descbase;
- /* Meta data about all descriptors. */
- struct b43legacy_dmadesc_meta *meta;
- /* Cache of TX headers for each slot.
- * This is to avoid an allocation on each TX.
- * This is NULL for an RX ring.
- */
- u8 *txhdr_cache;
- /* (Unadjusted) DMA base bus-address of the ring memory. */
- dma_addr_t dmabase;
- /* Number of descriptor slots in the ring. */
- int nr_slots;
- /* Number of used descriptor slots. */
- int used_slots;
- /* Currently used slot in the ring. */
- int current_slot;
- /* Frameoffset in octets. */
- u32 frameoffset;
- /* Descriptor buffer size. */
- u16 rx_buffersize;
- /* The MMIO base register of the DMA controller. */
- u16 mmio_base;
- /* DMA controller index number (0-5). */
- int index;
- /* Boolean. Is this a TX ring? */
- bool tx;
- /* The type of DMA engine used. */
- enum b43legacy_dmatype type;
- /* Boolean. Is this ring stopped at ieee80211 level? */
- bool stopped;
- /* The QOS priority assigned to this ring. Only used for TX rings.
- * This is the mac80211 "queue" value. */
- u8 queue_prio;
- struct b43legacy_wldev *dev;
-#ifdef CONFIG_B43LEGACY_DEBUG
- /* Maximum number of used slots. */
- int max_used_slots;
- /* Last time we injected a ring overflow. */
- unsigned long last_injected_overflow;
-#endif /* CONFIG_B43LEGACY_DEBUG*/
-};
-
-
-static inline
-u32 b43legacy_dma_read(struct b43legacy_dmaring *ring,
- u16 offset)
-{
- return b43legacy_read32(ring->dev, ring->mmio_base + offset);
-}
-
-static inline
-void b43legacy_dma_write(struct b43legacy_dmaring *ring,
- u16 offset, u32 value)
-{
- b43legacy_write32(ring->dev, ring->mmio_base + offset, value);
-}
-
-
-int b43legacy_dma_init(struct b43legacy_wldev *dev);
-void b43legacy_dma_free(struct b43legacy_wldev *dev);
-
-void b43legacy_dma_tx_suspend(struct b43legacy_wldev *dev);
-void b43legacy_dma_tx_resume(struct b43legacy_wldev *dev);
-
-int b43legacy_dma_tx(struct b43legacy_wldev *dev,
- struct sk_buff *skb);
-void b43legacy_dma_handle_txstatus(struct b43legacy_wldev *dev,
- const struct b43legacy_txstatus *status);
-
-void b43legacy_dma_rx(struct b43legacy_dmaring *ring);
-
-#else /* CONFIG_B43LEGACY_DMA */
-
-
-static inline
-int b43legacy_dma_init(struct b43legacy_wldev *dev)
-{
- return 0;
-}
-static inline
-void b43legacy_dma_free(struct b43legacy_wldev *dev)
-{
-}
-static inline
-int b43legacy_dma_tx(struct b43legacy_wldev *dev,
- struct sk_buff *skb)
-{
- return 0;
-}
-static inline
-void b43legacy_dma_handle_txstatus(struct b43legacy_wldev *dev,
- const struct b43legacy_txstatus *status)
-{
-}
-static inline
-void b43legacy_dma_rx(struct b43legacy_dmaring *ring)
-{
-}
-static inline
-void b43legacy_dma_tx_suspend(struct b43legacy_wldev *dev)
-{
-}
-static inline
-void b43legacy_dma_tx_resume(struct b43legacy_wldev *dev)
-{
-}
-
-#endif /* CONFIG_B43LEGACY_DMA */
-#endif /* B43legacy_DMA_H_ */
+++ /dev/null
-/*
-
- Broadcom B43legacy wireless driver
-
- Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
- Stefano Brivio <stefano.brivio@polimi.it>
- Michael Buesch <m@bues.ch>
- Danny van Dyk <kugelfang@gentoo.org>
- Andreas Jaggi <andreas.jaggi@waterwave.ch>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
- Boston, MA 02110-1301, USA.
-
-*/
-
-#include "b43legacy.h"
-#include "ilt.h"
-#include "phy.h"
-
-
-/**** Initial Internal Lookup Tables ****/
-
-const u32 b43legacy_ilt_rotor[B43legacy_ILT_ROTOR_SIZE] = {
- 0xFEB93FFD, 0xFEC63FFD, /* 0 */
- 0xFED23FFD, 0xFEDF3FFD,
- 0xFEEC3FFE, 0xFEF83FFE,
- 0xFF053FFE, 0xFF113FFE,
- 0xFF1E3FFE, 0xFF2A3FFF, /* 8 */
- 0xFF373FFF, 0xFF443FFF,
- 0xFF503FFF, 0xFF5D3FFF,
- 0xFF693FFF, 0xFF763FFF,
- 0xFF824000, 0xFF8F4000, /* 16 */
- 0xFF9B4000, 0xFFA84000,
- 0xFFB54000, 0xFFC14000,
- 0xFFCE4000, 0xFFDA4000,
- 0xFFE74000, 0xFFF34000, /* 24 */
- 0x00004000, 0x000D4000,
- 0x00194000, 0x00264000,
- 0x00324000, 0x003F4000,
- 0x004B4000, 0x00584000, /* 32 */
- 0x00654000, 0x00714000,
- 0x007E4000, 0x008A3FFF,
- 0x00973FFF, 0x00A33FFF,
- 0x00B03FFF, 0x00BC3FFF, /* 40 */
- 0x00C93FFF, 0x00D63FFF,
- 0x00E23FFE, 0x00EF3FFE,
- 0x00FB3FFE, 0x01083FFE,
- 0x01143FFE, 0x01213FFD, /* 48 */
- 0x012E3FFD, 0x013A3FFD,
- 0x01473FFD,
-};
-
-const u32 b43legacy_ilt_retard[B43legacy_ILT_RETARD_SIZE] = {
- 0xDB93CB87, 0xD666CF64, /* 0 */
- 0xD1FDD358, 0xCDA6D826,
- 0xCA38DD9F, 0xC729E2B4,
- 0xC469E88E, 0xC26AEE2B,
- 0xC0DEF46C, 0xC073FA62, /* 8 */
- 0xC01D00D5, 0xC0760743,
- 0xC1560D1E, 0xC2E51369,
- 0xC4ED18FF, 0xC7AC1ED7,
- 0xCB2823B2, 0xCEFA28D9, /* 16 */
- 0xD2F62D3F, 0xD7BB3197,
- 0xDCE53568, 0xE1FE3875,
- 0xE7D13B35, 0xED663D35,
- 0xF39B3EC4, 0xF98E3FA7, /* 24 */
- 0x00004000, 0x06723FA7,
- 0x0C653EC4, 0x129A3D35,
- 0x182F3B35, 0x1E023875,
- 0x231B3568, 0x28453197, /* 32 */
- 0x2D0A2D3F, 0x310628D9,
- 0x34D823B2, 0x38541ED7,
- 0x3B1318FF, 0x3D1B1369,
- 0x3EAA0D1E, 0x3F8A0743, /* 40 */
- 0x3FE300D5, 0x3F8DFA62,
- 0x3F22F46C, 0x3D96EE2B,
- 0x3B97E88E, 0x38D7E2B4,
- 0x35C8DD9F, 0x325AD826, /* 48 */
- 0x2E03D358, 0x299ACF64,
- 0x246DCB87,
-};
-
-const u16 b43legacy_ilt_finefreqa[B43legacy_ILT_FINEFREQA_SIZE] = {
- 0x0082, 0x0082, 0x0102, 0x0182, /* 0 */
- 0x0202, 0x0282, 0x0302, 0x0382,
- 0x0402, 0x0482, 0x0502, 0x0582,
- 0x05E2, 0x0662, 0x06E2, 0x0762,
- 0x07E2, 0x0842, 0x08C2, 0x0942, /* 16 */
- 0x09C2, 0x0A22, 0x0AA2, 0x0B02,
- 0x0B82, 0x0BE2, 0x0C62, 0x0CC2,
- 0x0D42, 0x0DA2, 0x0E02, 0x0E62,
- 0x0EE2, 0x0F42, 0x0FA2, 0x1002, /* 32 */
- 0x1062, 0x10C2, 0x1122, 0x1182,
- 0x11E2, 0x1242, 0x12A2, 0x12E2,
- 0x1342, 0x13A2, 0x1402, 0x1442,
- 0x14A2, 0x14E2, 0x1542, 0x1582, /* 48 */
- 0x15E2, 0x1622, 0x1662, 0x16C1,
- 0x1701, 0x1741, 0x1781, 0x17E1,
- 0x1821, 0x1861, 0x18A1, 0x18E1,
- 0x1921, 0x1961, 0x19A1, 0x19E1, /* 64 */
- 0x1A21, 0x1A61, 0x1AA1, 0x1AC1,
- 0x1B01, 0x1B41, 0x1B81, 0x1BA1,
- 0x1BE1, 0x1C21, 0x1C41, 0x1C81,
- 0x1CA1, 0x1CE1, 0x1D01, 0x1D41, /* 80 */
- 0x1D61, 0x1DA1, 0x1DC1, 0x1E01,
- 0x1E21, 0x1E61, 0x1E81, 0x1EA1,
- 0x1EE1, 0x1F01, 0x1F21, 0x1F41,
- 0x1F81, 0x1FA1, 0x1FC1, 0x1FE1, /* 96 */
- 0x2001, 0x2041, 0x2061, 0x2081,
- 0x20A1, 0x20C1, 0x20E1, 0x2101,
- 0x2121, 0x2141, 0x2161, 0x2181,
- 0x21A1, 0x21C1, 0x21E1, 0x2201, /* 112 */
- 0x2221, 0x2241, 0x2261, 0x2281,
- 0x22A1, 0x22C1, 0x22C1, 0x22E1,
- 0x2301, 0x2321, 0x2341, 0x2361,
- 0x2361, 0x2381, 0x23A1, 0x23C1, /* 128 */
- 0x23E1, 0x23E1, 0x2401, 0x2421,
- 0x2441, 0x2441, 0x2461, 0x2481,
- 0x2481, 0x24A1, 0x24C1, 0x24C1,
- 0x24E1, 0x2501, 0x2501, 0x2521, /* 144 */
- 0x2541, 0x2541, 0x2561, 0x2561,
- 0x2581, 0x25A1, 0x25A1, 0x25C1,
- 0x25C1, 0x25E1, 0x2601, 0x2601,
- 0x2621, 0x2621, 0x2641, 0x2641, /* 160 */
- 0x2661, 0x2661, 0x2681, 0x2681,
- 0x26A1, 0x26A1, 0x26C1, 0x26C1,
- 0x26E1, 0x26E1, 0x2701, 0x2701,
- 0x2721, 0x2721, 0x2740, 0x2740, /* 176 */
- 0x2760, 0x2760, 0x2780, 0x2780,
- 0x2780, 0x27A0, 0x27A0, 0x27C0,
- 0x27C0, 0x27E0, 0x27E0, 0x27E0,
- 0x2800, 0x2800, 0x2820, 0x2820, /* 192 */
- 0x2820, 0x2840, 0x2840, 0x2840,
- 0x2860, 0x2860, 0x2880, 0x2880,
- 0x2880, 0x28A0, 0x28A0, 0x28A0,
- 0x28C0, 0x28C0, 0x28C0, 0x28E0, /* 208 */
- 0x28E0, 0x28E0, 0x2900, 0x2900,
- 0x2900, 0x2920, 0x2920, 0x2920,
- 0x2940, 0x2940, 0x2940, 0x2960,
- 0x2960, 0x2960, 0x2960, 0x2980, /* 224 */
- 0x2980, 0x2980, 0x29A0, 0x29A0,
- 0x29A0, 0x29A0, 0x29C0, 0x29C0,
- 0x29C0, 0x29E0, 0x29E0, 0x29E0,
- 0x29E0, 0x2A00, 0x2A00, 0x2A00, /* 240 */
- 0x2A00, 0x2A20, 0x2A20, 0x2A20,
- 0x2A20, 0x2A40, 0x2A40, 0x2A40,
- 0x2A40, 0x2A60, 0x2A60, 0x2A60,
-};
-
-const u16 b43legacy_ilt_finefreqg[B43legacy_ILT_FINEFREQG_SIZE] = {
- 0x0089, 0x02E9, 0x0409, 0x04E9, /* 0 */
- 0x05A9, 0x0669, 0x0709, 0x0789,
- 0x0829, 0x08A9, 0x0929, 0x0989,
- 0x0A09, 0x0A69, 0x0AC9, 0x0B29,
- 0x0BA9, 0x0BE9, 0x0C49, 0x0CA9, /* 16 */
- 0x0D09, 0x0D69, 0x0DA9, 0x0E09,
- 0x0E69, 0x0EA9, 0x0F09, 0x0F49,
- 0x0FA9, 0x0FE9, 0x1029, 0x1089,
- 0x10C9, 0x1109, 0x1169, 0x11A9, /* 32 */
- 0x11E9, 0x1229, 0x1289, 0x12C9,
- 0x1309, 0x1349, 0x1389, 0x13C9,
- 0x1409, 0x1449, 0x14A9, 0x14E9,
- 0x1529, 0x1569, 0x15A9, 0x15E9, /* 48 */
- 0x1629, 0x1669, 0x16A9, 0x16E8,
- 0x1728, 0x1768, 0x17A8, 0x17E8,
- 0x1828, 0x1868, 0x18A8, 0x18E8,
- 0x1928, 0x1968, 0x19A8, 0x19E8, /* 64 */
- 0x1A28, 0x1A68, 0x1AA8, 0x1AE8,
- 0x1B28, 0x1B68, 0x1BA8, 0x1BE8,
- 0x1C28, 0x1C68, 0x1CA8, 0x1CE8,
- 0x1D28, 0x1D68, 0x1DC8, 0x1E08, /* 80 */
- 0x1E48, 0x1E88, 0x1EC8, 0x1F08,
- 0x1F48, 0x1F88, 0x1FE8, 0x2028,
- 0x2068, 0x20A8, 0x2108, 0x2148,
- 0x2188, 0x21C8, 0x2228, 0x2268, /* 96 */
- 0x22C8, 0x2308, 0x2348, 0x23A8,
- 0x23E8, 0x2448, 0x24A8, 0x24E8,
- 0x2548, 0x25A8, 0x2608, 0x2668,
- 0x26C8, 0x2728, 0x2787, 0x27E7, /* 112 */
- 0x2847, 0x28C7, 0x2947, 0x29A7,
- 0x2A27, 0x2AC7, 0x2B47, 0x2BE7,
- 0x2CA7, 0x2D67, 0x2E47, 0x2F67,
- 0x3247, 0x3526, 0x3646, 0x3726, /* 128 */
- 0x3806, 0x38A6, 0x3946, 0x39E6,
- 0x3A66, 0x3AE6, 0x3B66, 0x3BC6,
- 0x3C45, 0x3CA5, 0x3D05, 0x3D85,
- 0x3DE5, 0x3E45, 0x3EA5, 0x3EE5, /* 144 */
- 0x3F45, 0x3FA5, 0x4005, 0x4045,
- 0x40A5, 0x40E5, 0x4145, 0x4185,
- 0x41E5, 0x4225, 0x4265, 0x42C5,
- 0x4305, 0x4345, 0x43A5, 0x43E5, /* 160 */
- 0x4424, 0x4464, 0x44C4, 0x4504,
- 0x4544, 0x4584, 0x45C4, 0x4604,
- 0x4644, 0x46A4, 0x46E4, 0x4724,
- 0x4764, 0x47A4, 0x47E4, 0x4824, /* 176 */
- 0x4864, 0x48A4, 0x48E4, 0x4924,
- 0x4964, 0x49A4, 0x49E4, 0x4A24,
- 0x4A64, 0x4AA4, 0x4AE4, 0x4B23,
- 0x4B63, 0x4BA3, 0x4BE3, 0x4C23, /* 192 */
- 0x4C63, 0x4CA3, 0x4CE3, 0x4D23,
- 0x4D63, 0x4DA3, 0x4DE3, 0x4E23,
- 0x4E63, 0x4EA3, 0x4EE3, 0x4F23,
- 0x4F63, 0x4FC3, 0x5003, 0x5043, /* 208 */
- 0x5083, 0x50C3, 0x5103, 0x5143,
- 0x5183, 0x51E2, 0x5222, 0x5262,
- 0x52A2, 0x52E2, 0x5342, 0x5382,
- 0x53C2, 0x5402, 0x5462, 0x54A2, /* 224 */
- 0x5502, 0x5542, 0x55A2, 0x55E2,
- 0x5642, 0x5682, 0x56E2, 0x5722,
- 0x5782, 0x57E1, 0x5841, 0x58A1,
- 0x5901, 0x5961, 0x59C1, 0x5A21, /* 240 */
- 0x5AA1, 0x5B01, 0x5B81, 0x5BE1,
- 0x5C61, 0x5D01, 0x5D80, 0x5E20,
- 0x5EE0, 0x5FA0, 0x6080, 0x61C0,
-};
-
-const u16 b43legacy_ilt_noisea2[B43legacy_ILT_NOISEA2_SIZE] = {
- 0x0001, 0x0001, 0x0001, 0xFFFE,
- 0xFFFE, 0x3FFF, 0x1000, 0x0393,
-};
-
-const u16 b43legacy_ilt_noisea3[B43legacy_ILT_NOISEA3_SIZE] = {
- 0x4C4C, 0x4C4C, 0x4C4C, 0x2D36,
- 0x4C4C, 0x4C4C, 0x4C4C, 0x2D36,
-};
-
-const u16 b43legacy_ilt_noiseg1[B43legacy_ILT_NOISEG1_SIZE] = {
- 0x013C, 0x01F5, 0x031A, 0x0631,
- 0x0001, 0x0001, 0x0001, 0x0001,
-};
-
-const u16 b43legacy_ilt_noiseg2[B43legacy_ILT_NOISEG2_SIZE] = {
- 0x5484, 0x3C40, 0x0000, 0x0000,
- 0x0000, 0x0000, 0x0000, 0x0000,
-};
-
-const u16 b43legacy_ilt_noisescaleg1[B43legacy_ILT_NOISESCALEG_SIZE] = {
- 0x6C77, 0x5162, 0x3B40, 0x3335, /* 0 */
- 0x2F2D, 0x2A2A, 0x2527, 0x1F21,
- 0x1A1D, 0x1719, 0x1616, 0x1414,
- 0x1414, 0x1400, 0x1414, 0x1614,
- 0x1716, 0x1A19, 0x1F1D, 0x2521, /* 16 */
- 0x2A27, 0x2F2A, 0x332D, 0x3B35,
- 0x5140, 0x6C62, 0x0077,
-};
-
-const u16 b43legacy_ilt_noisescaleg2[B43legacy_ILT_NOISESCALEG_SIZE] = {
- 0xD8DD, 0xCBD4, 0xBCC0, 0XB6B7, /* 0 */
- 0xB2B0, 0xADAD, 0xA7A9, 0x9FA1,
- 0x969B, 0x9195, 0x8F8F, 0x8A8A,
- 0x8A8A, 0x8A00, 0x8A8A, 0x8F8A,
- 0x918F, 0x9695, 0x9F9B, 0xA7A1, /* 16 */
- 0xADA9, 0xB2AD, 0xB6B0, 0xBCB7,
- 0xCBC0, 0xD8D4, 0x00DD,
-};
-
-const u16 b43legacy_ilt_noisescaleg3[B43legacy_ILT_NOISESCALEG_SIZE] = {
- 0xA4A4, 0xA4A4, 0xA4A4, 0xA4A4, /* 0 */
- 0xA4A4, 0xA4A4, 0xA4A4, 0xA4A4,
- 0xA4A4, 0xA4A4, 0xA4A4, 0xA4A4,
- 0xA4A4, 0xA400, 0xA4A4, 0xA4A4,
- 0xA4A4, 0xA4A4, 0xA4A4, 0xA4A4, /* 16 */
- 0xA4A4, 0xA4A4, 0xA4A4, 0xA4A4,
- 0xA4A4, 0xA4A4, 0x00A4,
-};
-
-const u16 b43legacy_ilt_sigmasqr1[B43legacy_ILT_SIGMASQR_SIZE] = {
- 0x007A, 0x0075, 0x0071, 0x006C, /* 0 */
- 0x0067, 0x0063, 0x005E, 0x0059,
- 0x0054, 0x0050, 0x004B, 0x0046,
- 0x0042, 0x003D, 0x003D, 0x003D,
- 0x003D, 0x003D, 0x003D, 0x003D, /* 16 */
- 0x003D, 0x003D, 0x003D, 0x003D,
- 0x003D, 0x003D, 0x0000, 0x003D,
- 0x003D, 0x003D, 0x003D, 0x003D,
- 0x003D, 0x003D, 0x003D, 0x003D, /* 32 */
- 0x003D, 0x003D, 0x003D, 0x003D,
- 0x0042, 0x0046, 0x004B, 0x0050,
- 0x0054, 0x0059, 0x005E, 0x0063,
- 0x0067, 0x006C, 0x0071, 0x0075, /* 48 */
- 0x007A,
-};
-
-const u16 b43legacy_ilt_sigmasqr2[B43legacy_ILT_SIGMASQR_SIZE] = {
- 0x00DE, 0x00DC, 0x00DA, 0x00D8, /* 0 */
- 0x00D6, 0x00D4, 0x00D2, 0x00CF,
- 0x00CD, 0x00CA, 0x00C7, 0x00C4,
- 0x00C1, 0x00BE, 0x00BE, 0x00BE,
- 0x00BE, 0x00BE, 0x00BE, 0x00BE, /* 16 */
- 0x00BE, 0x00BE, 0x00BE, 0x00BE,
- 0x00BE, 0x00BE, 0x0000, 0x00BE,
- 0x00BE, 0x00BE, 0x00BE, 0x00BE,
- 0x00BE, 0x00BE, 0x00BE, 0x00BE, /* 32 */
- 0x00BE, 0x00BE, 0x00BE, 0x00BE,
- 0x00C1, 0x00C4, 0x00C7, 0x00CA,
- 0x00CD, 0x00CF, 0x00D2, 0x00D4,
- 0x00D6, 0x00D8, 0x00DA, 0x00DC, /* 48 */
- 0x00DE,
-};
-
-/**** Helper functions to access the device Internal Lookup Tables ****/
-
-void b43legacy_ilt_write(struct b43legacy_wldev *dev, u16 offset, u16 val)
-{
- b43legacy_phy_write(dev, B43legacy_PHY_ILT_G_CTRL, offset);
- mmiowb();
- b43legacy_phy_write(dev, B43legacy_PHY_ILT_G_DATA1, val);
-}
-
-void b43legacy_ilt_write32(struct b43legacy_wldev *dev, u16 offset, u32 val)
-{
- b43legacy_phy_write(dev, B43legacy_PHY_ILT_G_CTRL, offset);
- mmiowb();
- b43legacy_phy_write(dev, B43legacy_PHY_ILT_G_DATA2,
- (val & 0xFFFF0000) >> 16);
- b43legacy_phy_write(dev, B43legacy_PHY_ILT_G_DATA1,
- val & 0x0000FFFF);
-}
-
-u16 b43legacy_ilt_read(struct b43legacy_wldev *dev, u16 offset)
-{
- b43legacy_phy_write(dev, B43legacy_PHY_ILT_G_CTRL, offset);
- return b43legacy_phy_read(dev, B43legacy_PHY_ILT_G_DATA1);
-}
+++ /dev/null
-#ifndef B43legacy_ILT_H_
-#define B43legacy_ILT_H_
-
-#define B43legacy_ILT_ROTOR_SIZE 53
-extern const u32 b43legacy_ilt_rotor[B43legacy_ILT_ROTOR_SIZE];
-#define B43legacy_ILT_RETARD_SIZE 53
-extern const u32 b43legacy_ilt_retard[B43legacy_ILT_RETARD_SIZE];
-#define B43legacy_ILT_FINEFREQA_SIZE 256
-extern const u16 b43legacy_ilt_finefreqa[B43legacy_ILT_FINEFREQA_SIZE];
-#define B43legacy_ILT_FINEFREQG_SIZE 256
-extern const u16 b43legacy_ilt_finefreqg[B43legacy_ILT_FINEFREQG_SIZE];
-#define B43legacy_ILT_NOISEA2_SIZE 8
-extern const u16 b43legacy_ilt_noisea2[B43legacy_ILT_NOISEA2_SIZE];
-#define B43legacy_ILT_NOISEA3_SIZE 8
-extern const u16 b43legacy_ilt_noisea3[B43legacy_ILT_NOISEA3_SIZE];
-#define B43legacy_ILT_NOISEG1_SIZE 8
-extern const u16 b43legacy_ilt_noiseg1[B43legacy_ILT_NOISEG1_SIZE];
-#define B43legacy_ILT_NOISEG2_SIZE 8
-extern const u16 b43legacy_ilt_noiseg2[B43legacy_ILT_NOISEG2_SIZE];
-#define B43legacy_ILT_NOISESCALEG_SIZE 27
-extern const u16 b43legacy_ilt_noisescaleg1[B43legacy_ILT_NOISESCALEG_SIZE];
-extern const u16 b43legacy_ilt_noisescaleg2[B43legacy_ILT_NOISESCALEG_SIZE];
-extern const u16 b43legacy_ilt_noisescaleg3[B43legacy_ILT_NOISESCALEG_SIZE];
-#define B43legacy_ILT_SIGMASQR_SIZE 53
-extern const u16 b43legacy_ilt_sigmasqr1[B43legacy_ILT_SIGMASQR_SIZE];
-extern const u16 b43legacy_ilt_sigmasqr2[B43legacy_ILT_SIGMASQR_SIZE];
-
-
-void b43legacy_ilt_write(struct b43legacy_wldev *dev, u16 offset, u16 val);
-void b43legacy_ilt_write32(struct b43legacy_wldev *dev, u16 offset,
- u32 val);
-u16 b43legacy_ilt_read(struct b43legacy_wldev *dev, u16 offset);
-
-#endif /* B43legacy_ILT_H_ */
+++ /dev/null
-/*
-
- Broadcom B43 wireless driver
- LED control
-
- Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
- Copyright (c) 2005 Stefano Brivio <stefano.brivio@polimi.it>
- Copyright (c) 2005-2007 Michael Buesch <m@bues.ch>
- Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org>
- Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
- Boston, MA 02110-1301, USA.
-
-*/
-
-#include "b43legacy.h"
-#include "leds.h"
-#include "rfkill.h"
-
-
-static void b43legacy_led_turn_on(struct b43legacy_wldev *dev, u8 led_index,
- bool activelow)
-{
- struct b43legacy_wl *wl = dev->wl;
- unsigned long flags;
- u16 ctl;
-
- spin_lock_irqsave(&wl->leds_lock, flags);
- ctl = b43legacy_read16(dev, B43legacy_MMIO_GPIO_CONTROL);
- if (activelow)
- ctl &= ~(1 << led_index);
- else
- ctl |= (1 << led_index);
- b43legacy_write16(dev, B43legacy_MMIO_GPIO_CONTROL, ctl);
- spin_unlock_irqrestore(&wl->leds_lock, flags);
-}
-
-static void b43legacy_led_turn_off(struct b43legacy_wldev *dev, u8 led_index,
- bool activelow)
-{
- struct b43legacy_wl *wl = dev->wl;
- unsigned long flags;
- u16 ctl;
-
- spin_lock_irqsave(&wl->leds_lock, flags);
- ctl = b43legacy_read16(dev, B43legacy_MMIO_GPIO_CONTROL);
- if (activelow)
- ctl |= (1 << led_index);
- else
- ctl &= ~(1 << led_index);
- b43legacy_write16(dev, B43legacy_MMIO_GPIO_CONTROL, ctl);
- spin_unlock_irqrestore(&wl->leds_lock, flags);
-}
-
-/* Callback from the LED subsystem. */
-static void b43legacy_led_brightness_set(struct led_classdev *led_dev,
- enum led_brightness brightness)
-{
- struct b43legacy_led *led = container_of(led_dev, struct b43legacy_led,
- led_dev);
- struct b43legacy_wldev *dev = led->dev;
- bool radio_enabled;
-
- /* Checking the radio-enabled status here is slightly racy,
- * but we want to avoid the locking overhead and we don't care
- * whether the LED has the wrong state for a second. */
- radio_enabled = (dev->phy.radio_on && dev->radio_hw_enable);
-
- if (brightness == LED_OFF || !radio_enabled)
- b43legacy_led_turn_off(dev, led->index, led->activelow);
- else
- b43legacy_led_turn_on(dev, led->index, led->activelow);
-}
-
-static int b43legacy_register_led(struct b43legacy_wldev *dev,
- struct b43legacy_led *led,
- const char *name,
- const char *default_trigger,
- u8 led_index, bool activelow)
-{
- int err;
-
- b43legacy_led_turn_off(dev, led_index, activelow);
- if (led->dev)
- return -EEXIST;
- if (!default_trigger)
- return -EINVAL;
- led->dev = dev;
- led->index = led_index;
- led->activelow = activelow;
- strncpy(led->name, name, sizeof(led->name));
-
- led->led_dev.name = led->name;
- led->led_dev.default_trigger = default_trigger;
- led->led_dev.brightness_set = b43legacy_led_brightness_set;
-
- err = led_classdev_register(dev->dev->dev, &led->led_dev);
- if (err) {
- b43legacywarn(dev->wl, "LEDs: Failed to register %s\n", name);
- led->dev = NULL;
- return err;
- }
- return 0;
-}
-
-static void b43legacy_unregister_led(struct b43legacy_led *led)
-{
- if (!led->dev)
- return;
- led_classdev_unregister(&led->led_dev);
- b43legacy_led_turn_off(led->dev, led->index, led->activelow);
- led->dev = NULL;
-}
-
-static void b43legacy_map_led(struct b43legacy_wldev *dev,
- u8 led_index,
- enum b43legacy_led_behaviour behaviour,
- bool activelow)
-{
- struct ieee80211_hw *hw = dev->wl->hw;
- char name[B43legacy_LED_MAX_NAME_LEN + 1];
-
- /* Map the b43 specific LED behaviour value to the
- * generic LED triggers. */
- switch (behaviour) {
- case B43legacy_LED_INACTIVE:
- break;
- case B43legacy_LED_OFF:
- b43legacy_led_turn_off(dev, led_index, activelow);
- break;
- case B43legacy_LED_ON:
- b43legacy_led_turn_on(dev, led_index, activelow);
- break;
- case B43legacy_LED_ACTIVITY:
- case B43legacy_LED_TRANSFER:
- case B43legacy_LED_APTRANSFER:
- snprintf(name, sizeof(name),
- "b43legacy-%s::tx", wiphy_name(hw->wiphy));
- b43legacy_register_led(dev, &dev->led_tx, name,
- ieee80211_get_tx_led_name(hw),
- led_index, activelow);
- snprintf(name, sizeof(name),
- "b43legacy-%s::rx", wiphy_name(hw->wiphy));
- b43legacy_register_led(dev, &dev->led_rx, name,
- ieee80211_get_rx_led_name(hw),
- led_index, activelow);
- break;
- case B43legacy_LED_RADIO_ALL:
- case B43legacy_LED_RADIO_A:
- case B43legacy_LED_RADIO_B:
- case B43legacy_LED_MODE_BG:
- snprintf(name, sizeof(name),
- "b43legacy-%s::radio", wiphy_name(hw->wiphy));
- b43legacy_register_led(dev, &dev->led_radio, name,
- ieee80211_get_radio_led_name(hw),
- led_index, activelow);
- /* Sync the RF-kill LED state with radio and switch states. */
- if (dev->phy.radio_on && b43legacy_is_hw_radio_enabled(dev))
- b43legacy_led_turn_on(dev, led_index, activelow);
- break;
- case B43legacy_LED_WEIRD:
- case B43legacy_LED_ASSOC:
- snprintf(name, sizeof(name),
- "b43legacy-%s::assoc", wiphy_name(hw->wiphy));
- b43legacy_register_led(dev, &dev->led_assoc, name,
- ieee80211_get_assoc_led_name(hw),
- led_index, activelow);
- break;
- default:
- b43legacywarn(dev->wl, "LEDs: Unknown behaviour 0x%02X\n",
- behaviour);
- break;
- }
-}
-
-void b43legacy_leds_init(struct b43legacy_wldev *dev)
-{
- struct ssb_bus *bus = dev->dev->bus;
- u8 sprom[4];
- int i;
- enum b43legacy_led_behaviour behaviour;
- bool activelow;
-
- sprom[0] = bus->sprom.gpio0;
- sprom[1] = bus->sprom.gpio1;
- sprom[2] = bus->sprom.gpio2;
- sprom[3] = bus->sprom.gpio3;
-
- for (i = 0; i < 4; i++) {
- if (sprom[i] == 0xFF) {
- /* There is no LED information in the SPROM
- * for this LED. Hardcode it here. */
- activelow = false;
- switch (i) {
- case 0:
- behaviour = B43legacy_LED_ACTIVITY;
- activelow = true;
- if (bus->boardinfo.vendor == PCI_VENDOR_ID_COMPAQ)
- behaviour = B43legacy_LED_RADIO_ALL;
- break;
- case 1:
- behaviour = B43legacy_LED_RADIO_B;
- if (bus->boardinfo.vendor == PCI_VENDOR_ID_ASUSTEK)
- behaviour = B43legacy_LED_ASSOC;
- break;
- case 2:
- behaviour = B43legacy_LED_RADIO_A;
- break;
- case 3:
- behaviour = B43legacy_LED_OFF;
- break;
- default:
- B43legacy_WARN_ON(1);
- return;
- }
- } else {
- behaviour = sprom[i] & B43legacy_LED_BEHAVIOUR;
- activelow = !!(sprom[i] & B43legacy_LED_ACTIVELOW);
- }
- b43legacy_map_led(dev, i, behaviour, activelow);
- }
-}
-
-void b43legacy_leds_exit(struct b43legacy_wldev *dev)
-{
- b43legacy_unregister_led(&dev->led_tx);
- b43legacy_unregister_led(&dev->led_rx);
- b43legacy_unregister_led(&dev->led_assoc);
- b43legacy_unregister_led(&dev->led_radio);
-}
+++ /dev/null
-#ifndef B43legacy_LEDS_H_
-#define B43legacy_LEDS_H_
-
-struct b43legacy_wldev;
-
-#ifdef CONFIG_B43LEGACY_LEDS
-
-#include <linux/types.h>
-#include <linux/leds.h>
-
-
-#define B43legacy_LED_MAX_NAME_LEN 31
-
-struct b43legacy_led {
- struct b43legacy_wldev *dev;
- /* The LED class device */
- struct led_classdev led_dev;
- /* The index number of the LED. */
- u8 index;
- /* If activelow is true, the LED is ON if the
- * bit is switched off. */
- bool activelow;
- /* The unique name string for this LED device. */
- char name[B43legacy_LED_MAX_NAME_LEN + 1];
-};
-
-#define B43legacy_LED_BEHAVIOUR 0x7F
-#define B43legacy_LED_ACTIVELOW 0x80
-/* LED behaviour values */
-enum b43legacy_led_behaviour {
- B43legacy_LED_OFF,
- B43legacy_LED_ON,
- B43legacy_LED_ACTIVITY,
- B43legacy_LED_RADIO_ALL,
- B43legacy_LED_RADIO_A,
- B43legacy_LED_RADIO_B,
- B43legacy_LED_MODE_BG,
- B43legacy_LED_TRANSFER,
- B43legacy_LED_APTRANSFER,
- B43legacy_LED_WEIRD,
- B43legacy_LED_ASSOC,
- B43legacy_LED_INACTIVE,
-};
-
-void b43legacy_leds_init(struct b43legacy_wldev *dev);
-void b43legacy_leds_exit(struct b43legacy_wldev *dev);
-
-#else /* CONFIG_B43LEGACY_LEDS */
-/* LED support disabled */
-
-struct b43legacy_led {
- /* empty */
-};
-
-static inline void b43legacy_leds_init(struct b43legacy_wldev *dev)
-{
-}
-static inline void b43legacy_leds_exit(struct b43legacy_wldev *dev)
-{
-}
-#endif /* CONFIG_B43LEGACY_LEDS */
-
-#endif /* B43legacy_LEDS_H_ */
+++ /dev/null
-/*
- *
- * Broadcom B43legacy wireless driver
- *
- * Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>
- * Copyright (c) 2005-2008 Stefano Brivio <stefano.brivio@polimi.it>
- * Copyright (c) 2005, 2006 Michael Buesch <m@bues.ch>
- * Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org>
- * Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
- * Copyright (c) 2007 Larry Finger <Larry.Finger@lwfinger.net>
- *
- * Some parts of the code in this file are derived from the ipw2200
- * driver Copyright(c) 2003 - 2004 Intel Corporation.
-
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; see the file COPYING. If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- *
- */
-
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/if_arp.h>
-#include <linux/etherdevice.h>
-#include <linux/firmware.h>
-#include <linux/workqueue.h>
-#include <linux/sched.h>
-#include <linux/skbuff.h>
-#include <linux/dma-mapping.h>
-#include <linux/slab.h>
-#include <net/dst.h>
-#include <asm/unaligned.h>
-
-#include "b43legacy.h"
-#include "main.h"
-#include "debugfs.h"
-#include "phy.h"
-#include "dma.h"
-#include "pio.h"
-#include "sysfs.h"
-#include "xmit.h"
-#include "radio.h"
-
-
-MODULE_DESCRIPTION("Broadcom B43legacy wireless driver");
-MODULE_AUTHOR("Martin Langer");
-MODULE_AUTHOR("Stefano Brivio");
-MODULE_AUTHOR("Michael Buesch");
-MODULE_LICENSE("GPL");
-
-MODULE_FIRMWARE("b43legacy/ucode2.fw");
-MODULE_FIRMWARE("b43legacy/ucode4.fw");
-
-#if defined(CONFIG_B43LEGACY_DMA) && defined(CONFIG_B43LEGACY_PIO)
-static int modparam_pio;
-module_param_named(pio, modparam_pio, int, 0444);
-MODULE_PARM_DESC(pio, "enable(1) / disable(0) PIO mode");
-#elif defined(CONFIG_B43LEGACY_DMA)
-# define modparam_pio 0
-#elif defined(CONFIG_B43LEGACY_PIO)
-# define modparam_pio 1
-#endif
-
-static int modparam_bad_frames_preempt;
-module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444);
-MODULE_PARM_DESC(bad_frames_preempt, "enable(1) / disable(0) Bad Frames"
- " Preemption");
-
-static char modparam_fwpostfix[16];
-module_param_string(fwpostfix, modparam_fwpostfix, 16, 0444);
-MODULE_PARM_DESC(fwpostfix, "Postfix for the firmware files to load.");
-
-/* The following table supports BCM4301, BCM4303 and BCM4306/2 devices. */
-static const struct ssb_device_id b43legacy_ssb_tbl[] = {
- SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 2),
- SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 4),
- {},
-};
-MODULE_DEVICE_TABLE(ssb, b43legacy_ssb_tbl);
-
-
-/* Channel and ratetables are shared for all devices.
- * They can't be const, because ieee80211 puts some precalculated
- * data in there. This data is the same for all devices, so we don't
- * get concurrency issues */
-#define RATETAB_ENT(_rateid, _flags) \
- { \
- .bitrate = B43legacy_RATE_TO_100KBPS(_rateid), \
- .hw_value = (_rateid), \
- .flags = (_flags), \
- }
-/*
- * NOTE: When changing this, sync with xmit.c's
- * b43legacy_plcp_get_bitrate_idx_* functions!
- */
-static struct ieee80211_rate __b43legacy_ratetable[] = {
- RATETAB_ENT(B43legacy_CCK_RATE_1MB, 0),
- RATETAB_ENT(B43legacy_CCK_RATE_2MB, IEEE80211_RATE_SHORT_PREAMBLE),
- RATETAB_ENT(B43legacy_CCK_RATE_5MB, IEEE80211_RATE_SHORT_PREAMBLE),
- RATETAB_ENT(B43legacy_CCK_RATE_11MB, IEEE80211_RATE_SHORT_PREAMBLE),
- RATETAB_ENT(B43legacy_OFDM_RATE_6MB, 0),
- RATETAB_ENT(B43legacy_OFDM_RATE_9MB, 0),
- RATETAB_ENT(B43legacy_OFDM_RATE_12MB, 0),
- RATETAB_ENT(B43legacy_OFDM_RATE_18MB, 0),
- RATETAB_ENT(B43legacy_OFDM_RATE_24MB, 0),
- RATETAB_ENT(B43legacy_OFDM_RATE_36MB, 0),
- RATETAB_ENT(B43legacy_OFDM_RATE_48MB, 0),
- RATETAB_ENT(B43legacy_OFDM_RATE_54MB, 0),
-};
-#define b43legacy_b_ratetable (__b43legacy_ratetable + 0)
-#define b43legacy_b_ratetable_size 4
-#define b43legacy_g_ratetable (__b43legacy_ratetable + 0)
-#define b43legacy_g_ratetable_size 12
-
-#define CHANTAB_ENT(_chanid, _freq) \
- { \
- .center_freq = (_freq), \
- .hw_value = (_chanid), \
- }
-static struct ieee80211_channel b43legacy_bg_chantable[] = {
- CHANTAB_ENT(1, 2412),
- CHANTAB_ENT(2, 2417),
- CHANTAB_ENT(3, 2422),
- CHANTAB_ENT(4, 2427),
- CHANTAB_ENT(5, 2432),
- CHANTAB_ENT(6, 2437),
- CHANTAB_ENT(7, 2442),
- CHANTAB_ENT(8, 2447),
- CHANTAB_ENT(9, 2452),
- CHANTAB_ENT(10, 2457),
- CHANTAB_ENT(11, 2462),
- CHANTAB_ENT(12, 2467),
- CHANTAB_ENT(13, 2472),
- CHANTAB_ENT(14, 2484),
-};
-
-static struct ieee80211_supported_band b43legacy_band_2GHz_BPHY = {
- .channels = b43legacy_bg_chantable,
- .n_channels = ARRAY_SIZE(b43legacy_bg_chantable),
- .bitrates = b43legacy_b_ratetable,
- .n_bitrates = b43legacy_b_ratetable_size,
-};
-
-static struct ieee80211_supported_band b43legacy_band_2GHz_GPHY = {
- .channels = b43legacy_bg_chantable,
- .n_channels = ARRAY_SIZE(b43legacy_bg_chantable),
- .bitrates = b43legacy_g_ratetable,
- .n_bitrates = b43legacy_g_ratetable_size,
-};
-
-static void b43legacy_wireless_core_exit(struct b43legacy_wldev *dev);
-static int b43legacy_wireless_core_init(struct b43legacy_wldev *dev);
-static void b43legacy_wireless_core_stop(struct b43legacy_wldev *dev);
-static int b43legacy_wireless_core_start(struct b43legacy_wldev *dev);
-
-
-static int b43legacy_ratelimit(struct b43legacy_wl *wl)
-{
- if (!wl || !wl->current_dev)
- return 1;
- if (b43legacy_status(wl->current_dev) < B43legacy_STAT_STARTED)
- return 1;
- /* We are up and running.
- * Ratelimit the messages to avoid DoS over the net. */
- return net_ratelimit();
-}
-
-void b43legacyinfo(struct b43legacy_wl *wl, const char *fmt, ...)
-{
- struct va_format vaf;
- va_list args;
-
- if (!b43legacy_ratelimit(wl))
- return;
-
- va_start(args, fmt);
-
- vaf.fmt = fmt;
- vaf.va = &args;
-
- printk(KERN_INFO "b43legacy-%s: %pV",
- (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
-
- va_end(args);
-}
-
-void b43legacyerr(struct b43legacy_wl *wl, const char *fmt, ...)
-{
- struct va_format vaf;
- va_list args;
-
- if (!b43legacy_ratelimit(wl))
- return;
-
- va_start(args, fmt);
-
- vaf.fmt = fmt;
- vaf.va = &args;
-
- printk(KERN_ERR "b43legacy-%s ERROR: %pV",
- (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
-
- va_end(args);
-}
-
-void b43legacywarn(struct b43legacy_wl *wl, const char *fmt, ...)
-{
- struct va_format vaf;
- va_list args;
-
- if (!b43legacy_ratelimit(wl))
- return;
-
- va_start(args, fmt);
-
- vaf.fmt = fmt;
- vaf.va = &args;
-
- printk(KERN_WARNING "b43legacy-%s warning: %pV",
- (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
-
- va_end(args);
-}
-
-#if B43legacy_DEBUG
-void b43legacydbg(struct b43legacy_wl *wl, const char *fmt, ...)
-{
- struct va_format vaf;
- va_list args;
-
- va_start(args, fmt);
-
- vaf.fmt = fmt;
- vaf.va = &args;
-
- printk(KERN_DEBUG "b43legacy-%s debug: %pV",
- (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
-
- va_end(args);
-}
-#endif /* DEBUG */
-
-static void b43legacy_ram_write(struct b43legacy_wldev *dev, u16 offset,
- u32 val)
-{
- u32 status;
-
- B43legacy_WARN_ON(offset % 4 != 0);
-
- status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- if (status & B43legacy_MACCTL_BE)
- val = swab32(val);
-
- b43legacy_write32(dev, B43legacy_MMIO_RAM_CONTROL, offset);
- mmiowb();
- b43legacy_write32(dev, B43legacy_MMIO_RAM_DATA, val);
-}
-
-static inline
-void b43legacy_shm_control_word(struct b43legacy_wldev *dev,
- u16 routing, u16 offset)
-{
- u32 control;
-
- /* "offset" is the WORD offset. */
-
- control = routing;
- control <<= 16;
- control |= offset;
- b43legacy_write32(dev, B43legacy_MMIO_SHM_CONTROL, control);
-}
-
-u32 b43legacy_shm_read32(struct b43legacy_wldev *dev,
- u16 routing, u16 offset)
-{
- u32 ret;
-
- if (routing == B43legacy_SHM_SHARED) {
- B43legacy_WARN_ON((offset & 0x0001) != 0);
- if (offset & 0x0003) {
- /* Unaligned access */
- b43legacy_shm_control_word(dev, routing, offset >> 2);
- ret = b43legacy_read16(dev,
- B43legacy_MMIO_SHM_DATA_UNALIGNED);
- ret <<= 16;
- b43legacy_shm_control_word(dev, routing,
- (offset >> 2) + 1);
- ret |= b43legacy_read16(dev, B43legacy_MMIO_SHM_DATA);
-
- return ret;
- }
- offset >>= 2;
- }
- b43legacy_shm_control_word(dev, routing, offset);
- ret = b43legacy_read32(dev, B43legacy_MMIO_SHM_DATA);
-
- return ret;
-}
-
-u16 b43legacy_shm_read16(struct b43legacy_wldev *dev,
- u16 routing, u16 offset)
-{
- u16 ret;
-
- if (routing == B43legacy_SHM_SHARED) {
- B43legacy_WARN_ON((offset & 0x0001) != 0);
- if (offset & 0x0003) {
- /* Unaligned access */
- b43legacy_shm_control_word(dev, routing, offset >> 2);
- ret = b43legacy_read16(dev,
- B43legacy_MMIO_SHM_DATA_UNALIGNED);
-
- return ret;
- }
- offset >>= 2;
- }
- b43legacy_shm_control_word(dev, routing, offset);
- ret = b43legacy_read16(dev, B43legacy_MMIO_SHM_DATA);
-
- return ret;
-}
-
-void b43legacy_shm_write32(struct b43legacy_wldev *dev,
- u16 routing, u16 offset,
- u32 value)
-{
- if (routing == B43legacy_SHM_SHARED) {
- B43legacy_WARN_ON((offset & 0x0001) != 0);
- if (offset & 0x0003) {
- /* Unaligned access */
- b43legacy_shm_control_word(dev, routing, offset >> 2);
- mmiowb();
- b43legacy_write16(dev,
- B43legacy_MMIO_SHM_DATA_UNALIGNED,
- (value >> 16) & 0xffff);
- mmiowb();
- b43legacy_shm_control_word(dev, routing,
- (offset >> 2) + 1);
- mmiowb();
- b43legacy_write16(dev, B43legacy_MMIO_SHM_DATA,
- value & 0xffff);
- return;
- }
- offset >>= 2;
- }
- b43legacy_shm_control_word(dev, routing, offset);
- mmiowb();
- b43legacy_write32(dev, B43legacy_MMIO_SHM_DATA, value);
-}
-
-void b43legacy_shm_write16(struct b43legacy_wldev *dev, u16 routing, u16 offset,
- u16 value)
-{
- if (routing == B43legacy_SHM_SHARED) {
- B43legacy_WARN_ON((offset & 0x0001) != 0);
- if (offset & 0x0003) {
- /* Unaligned access */
- b43legacy_shm_control_word(dev, routing, offset >> 2);
- mmiowb();
- b43legacy_write16(dev,
- B43legacy_MMIO_SHM_DATA_UNALIGNED,
- value);
- return;
- }
- offset >>= 2;
- }
- b43legacy_shm_control_word(dev, routing, offset);
- mmiowb();
- b43legacy_write16(dev, B43legacy_MMIO_SHM_DATA, value);
-}
-
-/* Read HostFlags */
-u32 b43legacy_hf_read(struct b43legacy_wldev *dev)
-{
- u32 ret;
-
- ret = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_HOSTFHI);
- ret <<= 16;
- ret |= b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_HOSTFLO);
-
- return ret;
-}
-
-/* Write HostFlags */
-void b43legacy_hf_write(struct b43legacy_wldev *dev, u32 value)
-{
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_HOSTFLO,
- (value & 0x0000FFFF));
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_HOSTFHI,
- ((value & 0xFFFF0000) >> 16));
-}
-
-void b43legacy_tsf_read(struct b43legacy_wldev *dev, u64 *tsf)
-{
- /* We need to be careful. As we read the TSF from multiple
- * registers, we should take care of register overflows.
- * In theory, the whole tsf read process should be atomic.
- * We try to be atomic here, by restaring the read process,
- * if any of the high registers changed (overflew).
- */
- if (dev->dev->id.revision >= 3) {
- u32 low;
- u32 high;
- u32 high2;
-
- do {
- high = b43legacy_read32(dev,
- B43legacy_MMIO_REV3PLUS_TSF_HIGH);
- low = b43legacy_read32(dev,
- B43legacy_MMIO_REV3PLUS_TSF_LOW);
- high2 = b43legacy_read32(dev,
- B43legacy_MMIO_REV3PLUS_TSF_HIGH);
- } while (unlikely(high != high2));
-
- *tsf = high;
- *tsf <<= 32;
- *tsf |= low;
- } else {
- u64 tmp;
- u16 v0;
- u16 v1;
- u16 v2;
- u16 v3;
- u16 test1;
- u16 test2;
- u16 test3;
-
- do {
- v3 = b43legacy_read16(dev, B43legacy_MMIO_TSF_3);
- v2 = b43legacy_read16(dev, B43legacy_MMIO_TSF_2);
- v1 = b43legacy_read16(dev, B43legacy_MMIO_TSF_1);
- v0 = b43legacy_read16(dev, B43legacy_MMIO_TSF_0);
-
- test3 = b43legacy_read16(dev, B43legacy_MMIO_TSF_3);
- test2 = b43legacy_read16(dev, B43legacy_MMIO_TSF_2);
- test1 = b43legacy_read16(dev, B43legacy_MMIO_TSF_1);
- } while (v3 != test3 || v2 != test2 || v1 != test1);
-
- *tsf = v3;
- *tsf <<= 48;
- tmp = v2;
- tmp <<= 32;
- *tsf |= tmp;
- tmp = v1;
- tmp <<= 16;
- *tsf |= tmp;
- *tsf |= v0;
- }
-}
-
-static void b43legacy_time_lock(struct b43legacy_wldev *dev)
-{
- u32 status;
-
- status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- status |= B43legacy_MACCTL_TBTTHOLD;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, status);
- mmiowb();
-}
-
-static void b43legacy_time_unlock(struct b43legacy_wldev *dev)
-{
- u32 status;
-
- status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- status &= ~B43legacy_MACCTL_TBTTHOLD;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, status);
-}
-
-static void b43legacy_tsf_write_locked(struct b43legacy_wldev *dev, u64 tsf)
-{
- /* Be careful with the in-progress timer.
- * First zero out the low register, so we have a full
- * register-overflow duration to complete the operation.
- */
- if (dev->dev->id.revision >= 3) {
- u32 lo = (tsf & 0x00000000FFFFFFFFULL);
- u32 hi = (tsf & 0xFFFFFFFF00000000ULL) >> 32;
-
- b43legacy_write32(dev, B43legacy_MMIO_REV3PLUS_TSF_LOW, 0);
- mmiowb();
- b43legacy_write32(dev, B43legacy_MMIO_REV3PLUS_TSF_HIGH,
- hi);
- mmiowb();
- b43legacy_write32(dev, B43legacy_MMIO_REV3PLUS_TSF_LOW,
- lo);
- } else {
- u16 v0 = (tsf & 0x000000000000FFFFULL);
- u16 v1 = (tsf & 0x00000000FFFF0000ULL) >> 16;
- u16 v2 = (tsf & 0x0000FFFF00000000ULL) >> 32;
- u16 v3 = (tsf & 0xFFFF000000000000ULL) >> 48;
-
- b43legacy_write16(dev, B43legacy_MMIO_TSF_0, 0);
- mmiowb();
- b43legacy_write16(dev, B43legacy_MMIO_TSF_3, v3);
- mmiowb();
- b43legacy_write16(dev, B43legacy_MMIO_TSF_2, v2);
- mmiowb();
- b43legacy_write16(dev, B43legacy_MMIO_TSF_1, v1);
- mmiowb();
- b43legacy_write16(dev, B43legacy_MMIO_TSF_0, v0);
- }
-}
-
-void b43legacy_tsf_write(struct b43legacy_wldev *dev, u64 tsf)
-{
- b43legacy_time_lock(dev);
- b43legacy_tsf_write_locked(dev, tsf);
- b43legacy_time_unlock(dev);
-}
-
-static
-void b43legacy_macfilter_set(struct b43legacy_wldev *dev,
- u16 offset, const u8 *mac)
-{
- static const u8 zero_addr[ETH_ALEN] = { 0 };
- u16 data;
-
- if (!mac)
- mac = zero_addr;
-
- offset |= 0x0020;
- b43legacy_write16(dev, B43legacy_MMIO_MACFILTER_CONTROL, offset);
-
- data = mac[0];
- data |= mac[1] << 8;
- b43legacy_write16(dev, B43legacy_MMIO_MACFILTER_DATA, data);
- data = mac[2];
- data |= mac[3] << 8;
- b43legacy_write16(dev, B43legacy_MMIO_MACFILTER_DATA, data);
- data = mac[4];
- data |= mac[5] << 8;
- b43legacy_write16(dev, B43legacy_MMIO_MACFILTER_DATA, data);
-}
-
-static void b43legacy_write_mac_bssid_templates(struct b43legacy_wldev *dev)
-{
- static const u8 zero_addr[ETH_ALEN] = { 0 };
- const u8 *mac = dev->wl->mac_addr;
- const u8 *bssid = dev->wl->bssid;
- u8 mac_bssid[ETH_ALEN * 2];
- int i;
- u32 tmp;
-
- if (!bssid)
- bssid = zero_addr;
- if (!mac)
- mac = zero_addr;
-
- b43legacy_macfilter_set(dev, B43legacy_MACFILTER_BSSID, bssid);
-
- memcpy(mac_bssid, mac, ETH_ALEN);
- memcpy(mac_bssid + ETH_ALEN, bssid, ETH_ALEN);
-
- /* Write our MAC address and BSSID to template ram */
- for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32)) {
- tmp = (u32)(mac_bssid[i + 0]);
- tmp |= (u32)(mac_bssid[i + 1]) << 8;
- tmp |= (u32)(mac_bssid[i + 2]) << 16;
- tmp |= (u32)(mac_bssid[i + 3]) << 24;
- b43legacy_ram_write(dev, 0x20 + i, tmp);
- b43legacy_ram_write(dev, 0x78 + i, tmp);
- b43legacy_ram_write(dev, 0x478 + i, tmp);
- }
-}
-
-static void b43legacy_upload_card_macaddress(struct b43legacy_wldev *dev)
-{
- b43legacy_write_mac_bssid_templates(dev);
- b43legacy_macfilter_set(dev, B43legacy_MACFILTER_SELF,
- dev->wl->mac_addr);
-}
-
-static void b43legacy_set_slot_time(struct b43legacy_wldev *dev,
- u16 slot_time)
-{
- /* slot_time is in usec. */
- if (dev->phy.type != B43legacy_PHYTYPE_G)
- return;
- b43legacy_write16(dev, 0x684, 510 + slot_time);
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0010,
- slot_time);
-}
-
-static void b43legacy_short_slot_timing_enable(struct b43legacy_wldev *dev)
-{
- b43legacy_set_slot_time(dev, 9);
-}
-
-static void b43legacy_short_slot_timing_disable(struct b43legacy_wldev *dev)
-{
- b43legacy_set_slot_time(dev, 20);
-}
-
-/* Synchronize IRQ top- and bottom-half.
- * IRQs must be masked before calling this.
- * This must not be called with the irq_lock held.
- */
-static void b43legacy_synchronize_irq(struct b43legacy_wldev *dev)
-{
- synchronize_irq(dev->dev->irq);
- tasklet_kill(&dev->isr_tasklet);
-}
-
-/* DummyTransmission function, as documented on
- * http://bcm-specs.sipsolutions.net/DummyTransmission
- */
-void b43legacy_dummy_transmission(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- unsigned int i;
- unsigned int max_loop;
- u16 value;
- u32 buffer[5] = {
- 0x00000000,
- 0x00D40000,
- 0x00000000,
- 0x01000000,
- 0x00000000,
- };
-
- switch (phy->type) {
- case B43legacy_PHYTYPE_B:
- case B43legacy_PHYTYPE_G:
- max_loop = 0xFA;
- buffer[0] = 0x000B846E;
- break;
- default:
- B43legacy_BUG_ON(1);
- return;
- }
-
- for (i = 0; i < 5; i++)
- b43legacy_ram_write(dev, i * 4, buffer[i]);
-
- /* dummy read follows */
- b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
-
- b43legacy_write16(dev, 0x0568, 0x0000);
- b43legacy_write16(dev, 0x07C0, 0x0000);
- b43legacy_write16(dev, 0x050C, 0x0000);
- b43legacy_write16(dev, 0x0508, 0x0000);
- b43legacy_write16(dev, 0x050A, 0x0000);
- b43legacy_write16(dev, 0x054C, 0x0000);
- b43legacy_write16(dev, 0x056A, 0x0014);
- b43legacy_write16(dev, 0x0568, 0x0826);
- b43legacy_write16(dev, 0x0500, 0x0000);
- b43legacy_write16(dev, 0x0502, 0x0030);
-
- if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
- b43legacy_radio_write16(dev, 0x0051, 0x0017);
- for (i = 0x00; i < max_loop; i++) {
- value = b43legacy_read16(dev, 0x050E);
- if (value & 0x0080)
- break;
- udelay(10);
- }
- for (i = 0x00; i < 0x0A; i++) {
- value = b43legacy_read16(dev, 0x050E);
- if (value & 0x0400)
- break;
- udelay(10);
- }
- for (i = 0x00; i < 0x0A; i++) {
- value = b43legacy_read16(dev, 0x0690);
- if (!(value & 0x0100))
- break;
- udelay(10);
- }
- if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
- b43legacy_radio_write16(dev, 0x0051, 0x0037);
-}
-
-/* Turn the Analog ON/OFF */
-static void b43legacy_switch_analog(struct b43legacy_wldev *dev, int on)
-{
- b43legacy_write16(dev, B43legacy_MMIO_PHY0, on ? 0 : 0xF4);
-}
-
-void b43legacy_wireless_core_reset(struct b43legacy_wldev *dev, u32 flags)
-{
- u32 tmslow;
- u32 macctl;
-
- flags |= B43legacy_TMSLOW_PHYCLKEN;
- flags |= B43legacy_TMSLOW_PHYRESET;
- ssb_device_enable(dev->dev, flags);
- msleep(2); /* Wait for the PLL to turn on. */
-
- /* Now take the PHY out of Reset again */
- tmslow = ssb_read32(dev->dev, SSB_TMSLOW);
- tmslow |= SSB_TMSLOW_FGC;
- tmslow &= ~B43legacy_TMSLOW_PHYRESET;
- ssb_write32(dev->dev, SSB_TMSLOW, tmslow);
- ssb_read32(dev->dev, SSB_TMSLOW); /* flush */
- msleep(1);
- tmslow &= ~SSB_TMSLOW_FGC;
- ssb_write32(dev->dev, SSB_TMSLOW, tmslow);
- ssb_read32(dev->dev, SSB_TMSLOW); /* flush */
- msleep(1);
-
- /* Turn Analog ON */
- b43legacy_switch_analog(dev, 1);
-
- macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- macctl &= ~B43legacy_MACCTL_GMODE;
- if (flags & B43legacy_TMSLOW_GMODE) {
- macctl |= B43legacy_MACCTL_GMODE;
- dev->phy.gmode = true;
- } else
- dev->phy.gmode = false;
- macctl |= B43legacy_MACCTL_IHR_ENABLED;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
-}
-
-static void handle_irq_transmit_status(struct b43legacy_wldev *dev)
-{
- u32 v0;
- u32 v1;
- u16 tmp;
- struct b43legacy_txstatus stat;
-
- while (1) {
- v0 = b43legacy_read32(dev, B43legacy_MMIO_XMITSTAT_0);
- if (!(v0 & 0x00000001))
- break;
- v1 = b43legacy_read32(dev, B43legacy_MMIO_XMITSTAT_1);
-
- stat.cookie = (v0 >> 16);
- stat.seq = (v1 & 0x0000FFFF);
- stat.phy_stat = ((v1 & 0x00FF0000) >> 16);
- tmp = (v0 & 0x0000FFFF);
- stat.frame_count = ((tmp & 0xF000) >> 12);
- stat.rts_count = ((tmp & 0x0F00) >> 8);
- stat.supp_reason = ((tmp & 0x001C) >> 2);
- stat.pm_indicated = !!(tmp & 0x0080);
- stat.intermediate = !!(tmp & 0x0040);
- stat.for_ampdu = !!(tmp & 0x0020);
- stat.acked = !!(tmp & 0x0002);
-
- b43legacy_handle_txstatus(dev, &stat);
- }
-}
-
-static void drain_txstatus_queue(struct b43legacy_wldev *dev)
-{
- u32 dummy;
-
- if (dev->dev->id.revision < 5)
- return;
- /* Read all entries from the microcode TXstatus FIFO
- * and throw them away.
- */
- while (1) {
- dummy = b43legacy_read32(dev, B43legacy_MMIO_XMITSTAT_0);
- if (!(dummy & 0x00000001))
- break;
- dummy = b43legacy_read32(dev, B43legacy_MMIO_XMITSTAT_1);
- }
-}
-
-static u32 b43legacy_jssi_read(struct b43legacy_wldev *dev)
-{
- u32 val = 0;
-
- val = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x40A);
- val <<= 16;
- val |= b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x408);
-
- return val;
-}
-
-static void b43legacy_jssi_write(struct b43legacy_wldev *dev, u32 jssi)
-{
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x408,
- (jssi & 0x0000FFFF));
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x40A,
- (jssi & 0xFFFF0000) >> 16);
-}
-
-static void b43legacy_generate_noise_sample(struct b43legacy_wldev *dev)
-{
- b43legacy_jssi_write(dev, 0x7F7F7F7F);
- b43legacy_write32(dev, B43legacy_MMIO_MACCMD,
- b43legacy_read32(dev, B43legacy_MMIO_MACCMD)
- | B43legacy_MACCMD_BGNOISE);
- B43legacy_WARN_ON(dev->noisecalc.channel_at_start !=
- dev->phy.channel);
-}
-
-static void b43legacy_calculate_link_quality(struct b43legacy_wldev *dev)
-{
- /* Top half of Link Quality calculation. */
-
- if (dev->noisecalc.calculation_running)
- return;
- dev->noisecalc.channel_at_start = dev->phy.channel;
- dev->noisecalc.calculation_running = true;
- dev->noisecalc.nr_samples = 0;
-
- b43legacy_generate_noise_sample(dev);
-}
-
-static void handle_irq_noise(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 tmp;
- u8 noise[4];
- u8 i;
- u8 j;
- s32 average;
-
- /* Bottom half of Link Quality calculation. */
-
- B43legacy_WARN_ON(!dev->noisecalc.calculation_running);
- if (dev->noisecalc.channel_at_start != phy->channel)
- goto drop_calculation;
- *((__le32 *)noise) = cpu_to_le32(b43legacy_jssi_read(dev));
- if (noise[0] == 0x7F || noise[1] == 0x7F ||
- noise[2] == 0x7F || noise[3] == 0x7F)
- goto generate_new;
-
- /* Get the noise samples. */
- B43legacy_WARN_ON(dev->noisecalc.nr_samples >= 8);
- i = dev->noisecalc.nr_samples;
- noise[0] = clamp_val(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
- noise[1] = clamp_val(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
- noise[2] = clamp_val(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
- noise[3] = clamp_val(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
- dev->noisecalc.samples[i][0] = phy->nrssi_lt[noise[0]];
- dev->noisecalc.samples[i][1] = phy->nrssi_lt[noise[1]];
- dev->noisecalc.samples[i][2] = phy->nrssi_lt[noise[2]];
- dev->noisecalc.samples[i][3] = phy->nrssi_lt[noise[3]];
- dev->noisecalc.nr_samples++;
- if (dev->noisecalc.nr_samples == 8) {
- /* Calculate the Link Quality by the noise samples. */
- average = 0;
- for (i = 0; i < 8; i++) {
- for (j = 0; j < 4; j++)
- average += dev->noisecalc.samples[i][j];
- }
- average /= (8 * 4);
- average *= 125;
- average += 64;
- average /= 128;
- tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- 0x40C);
- tmp = (tmp / 128) & 0x1F;
- if (tmp >= 8)
- average += 2;
- else
- average -= 25;
- if (tmp == 8)
- average -= 72;
- else
- average -= 48;
-
- dev->stats.link_noise = average;
-drop_calculation:
- dev->noisecalc.calculation_running = false;
- return;
- }
-generate_new:
- b43legacy_generate_noise_sample(dev);
-}
-
-static void handle_irq_tbtt_indication(struct b43legacy_wldev *dev)
-{
- if (b43legacy_is_mode(dev->wl, NL80211_IFTYPE_AP)) {
- /* TODO: PS TBTT */
- } else {
- if (1/*FIXME: the last PSpoll frame was sent successfully */)
- b43legacy_power_saving_ctl_bits(dev, -1, -1);
- }
- if (b43legacy_is_mode(dev->wl, NL80211_IFTYPE_ADHOC))
- dev->dfq_valid = true;
-}
-
-static void handle_irq_atim_end(struct b43legacy_wldev *dev)
-{
- if (dev->dfq_valid) {
- b43legacy_write32(dev, B43legacy_MMIO_MACCMD,
- b43legacy_read32(dev, B43legacy_MMIO_MACCMD)
- | B43legacy_MACCMD_DFQ_VALID);
- dev->dfq_valid = false;
- }
-}
-
-static void handle_irq_pmq(struct b43legacy_wldev *dev)
-{
- u32 tmp;
-
- /* TODO: AP mode. */
-
- while (1) {
- tmp = b43legacy_read32(dev, B43legacy_MMIO_PS_STATUS);
- if (!(tmp & 0x00000008))
- break;
- }
- /* 16bit write is odd, but correct. */
- b43legacy_write16(dev, B43legacy_MMIO_PS_STATUS, 0x0002);
-}
-
-static void b43legacy_write_template_common(struct b43legacy_wldev *dev,
- const u8 *data, u16 size,
- u16 ram_offset,
- u16 shm_size_offset, u8 rate)
-{
- u32 i;
- u32 tmp;
- struct b43legacy_plcp_hdr4 plcp;
-
- plcp.data = 0;
- b43legacy_generate_plcp_hdr(&plcp, size + FCS_LEN, rate);
- b43legacy_ram_write(dev, ram_offset, le32_to_cpu(plcp.data));
- ram_offset += sizeof(u32);
- /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet.
- * So leave the first two bytes of the next write blank.
- */
- tmp = (u32)(data[0]) << 16;
- tmp |= (u32)(data[1]) << 24;
- b43legacy_ram_write(dev, ram_offset, tmp);
- ram_offset += sizeof(u32);
- for (i = 2; i < size; i += sizeof(u32)) {
- tmp = (u32)(data[i + 0]);
- if (i + 1 < size)
- tmp |= (u32)(data[i + 1]) << 8;
- if (i + 2 < size)
- tmp |= (u32)(data[i + 2]) << 16;
- if (i + 3 < size)
- tmp |= (u32)(data[i + 3]) << 24;
- b43legacy_ram_write(dev, ram_offset + i - 2, tmp);
- }
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, shm_size_offset,
- size + sizeof(struct b43legacy_plcp_hdr6));
-}
-
-/* Convert a b43legacy antenna number value to the PHY TX control value. */
-static u16 b43legacy_antenna_to_phyctl(int antenna)
-{
- switch (antenna) {
- case B43legacy_ANTENNA0:
- return B43legacy_TX4_PHY_ANT0;
- case B43legacy_ANTENNA1:
- return B43legacy_TX4_PHY_ANT1;
- }
- return B43legacy_TX4_PHY_ANTLAST;
-}
-
-static void b43legacy_write_beacon_template(struct b43legacy_wldev *dev,
- u16 ram_offset,
- u16 shm_size_offset)
-{
-
- unsigned int i, len, variable_len;
- const struct ieee80211_mgmt *bcn;
- const u8 *ie;
- bool tim_found = false;
- unsigned int rate;
- u16 ctl;
- int antenna;
- struct ieee80211_tx_info *info = IEEE80211_SKB_CB(dev->wl->current_beacon);
-
- bcn = (const struct ieee80211_mgmt *)(dev->wl->current_beacon->data);
- len = min_t(size_t, dev->wl->current_beacon->len,
- 0x200 - sizeof(struct b43legacy_plcp_hdr6));
- rate = ieee80211_get_tx_rate(dev->wl->hw, info)->hw_value;
-
- b43legacy_write_template_common(dev, (const u8 *)bcn, len, ram_offset,
- shm_size_offset, rate);
-
- /* Write the PHY TX control parameters. */
- antenna = B43legacy_ANTENNA_DEFAULT;
- antenna = b43legacy_antenna_to_phyctl(antenna);
- ctl = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_BEACPHYCTL);
- /* We can't send beacons with short preamble. Would get PHY errors. */
- ctl &= ~B43legacy_TX4_PHY_SHORTPRMBL;
- ctl &= ~B43legacy_TX4_PHY_ANT;
- ctl &= ~B43legacy_TX4_PHY_ENC;
- ctl |= antenna;
- ctl |= B43legacy_TX4_PHY_ENC_CCK;
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_BEACPHYCTL, ctl);
-
- /* Find the position of the TIM and the DTIM_period value
- * and write them to SHM. */
- ie = bcn->u.beacon.variable;
- variable_len = len - offsetof(struct ieee80211_mgmt, u.beacon.variable);
- for (i = 0; i < variable_len - 2; ) {
- uint8_t ie_id, ie_len;
-
- ie_id = ie[i];
- ie_len = ie[i + 1];
- if (ie_id == 5) {
- u16 tim_position;
- u16 dtim_period;
- /* This is the TIM Information Element */
-
- /* Check whether the ie_len is in the beacon data range. */
- if (variable_len < ie_len + 2 + i)
- break;
- /* A valid TIM is at least 4 bytes long. */
- if (ie_len < 4)
- break;
- tim_found = true;
-
- tim_position = sizeof(struct b43legacy_plcp_hdr6);
- tim_position += offsetof(struct ieee80211_mgmt,
- u.beacon.variable);
- tim_position += i;
-
- dtim_period = ie[i + 3];
-
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_TIMPOS, tim_position);
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_DTIMP, dtim_period);
- break;
- }
- i += ie_len + 2;
- }
- if (!tim_found) {
- b43legacywarn(dev->wl, "Did not find a valid TIM IE in the "
- "beacon template packet. AP or IBSS operation "
- "may be broken.\n");
- } else
- b43legacydbg(dev->wl, "Updated beacon template\n");
-}
-
-static void b43legacy_write_probe_resp_plcp(struct b43legacy_wldev *dev,
- u16 shm_offset, u16 size,
- struct ieee80211_rate *rate)
-{
- struct b43legacy_plcp_hdr4 plcp;
- u32 tmp;
- __le16 dur;
-
- plcp.data = 0;
- b43legacy_generate_plcp_hdr(&plcp, size + FCS_LEN, rate->hw_value);
- dur = ieee80211_generic_frame_duration(dev->wl->hw,
- dev->wl->vif,
- IEEE80211_BAND_2GHZ,
- size,
- rate);
- /* Write PLCP in two parts and timing for packet transfer */
- tmp = le32_to_cpu(plcp.data);
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, shm_offset,
- tmp & 0xFFFF);
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, shm_offset + 2,
- tmp >> 16);
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, shm_offset + 6,
- le16_to_cpu(dur));
-}
-
-/* Instead of using custom probe response template, this function
- * just patches custom beacon template by:
- * 1) Changing packet type
- * 2) Patching duration field
- * 3) Stripping TIM
- */
-static const u8 *b43legacy_generate_probe_resp(struct b43legacy_wldev *dev,
- u16 *dest_size,
- struct ieee80211_rate *rate)
-{
- const u8 *src_data;
- u8 *dest_data;
- u16 src_size, elem_size, src_pos, dest_pos;
- __le16 dur;
- struct ieee80211_hdr *hdr;
- size_t ie_start;
-
- src_size = dev->wl->current_beacon->len;
- src_data = (const u8 *)dev->wl->current_beacon->data;
-
- /* Get the start offset of the variable IEs in the packet. */
- ie_start = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
- B43legacy_WARN_ON(ie_start != offsetof(struct ieee80211_mgmt,
- u.beacon.variable));
-
- if (B43legacy_WARN_ON(src_size < ie_start))
- return NULL;
-
- dest_data = kmalloc(src_size, GFP_ATOMIC);
- if (unlikely(!dest_data))
- return NULL;
-
- /* Copy the static data and all Information Elements, except the TIM. */
- memcpy(dest_data, src_data, ie_start);
- src_pos = ie_start;
- dest_pos = ie_start;
- for ( ; src_pos < src_size - 2; src_pos += elem_size) {
- elem_size = src_data[src_pos + 1] + 2;
- if (src_data[src_pos] == 5) {
- /* This is the TIM. */
- continue;
- }
- memcpy(dest_data + dest_pos, src_data + src_pos, elem_size);
- dest_pos += elem_size;
- }
- *dest_size = dest_pos;
- hdr = (struct ieee80211_hdr *)dest_data;
-
- /* Set the frame control. */
- hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
- IEEE80211_STYPE_PROBE_RESP);
- dur = ieee80211_generic_frame_duration(dev->wl->hw,
- dev->wl->vif,
- IEEE80211_BAND_2GHZ,
- *dest_size,
- rate);
- hdr->duration_id = dur;
-
- return dest_data;
-}
-
-static void b43legacy_write_probe_resp_template(struct b43legacy_wldev *dev,
- u16 ram_offset,
- u16 shm_size_offset,
- struct ieee80211_rate *rate)
-{
- const u8 *probe_resp_data;
- u16 size;
-
- size = dev->wl->current_beacon->len;
- probe_resp_data = b43legacy_generate_probe_resp(dev, &size, rate);
- if (unlikely(!probe_resp_data))
- return;
-
- /* Looks like PLCP headers plus packet timings are stored for
- * all possible basic rates
- */
- b43legacy_write_probe_resp_plcp(dev, 0x31A, size,
- &b43legacy_b_ratetable[0]);
- b43legacy_write_probe_resp_plcp(dev, 0x32C, size,
- &b43legacy_b_ratetable[1]);
- b43legacy_write_probe_resp_plcp(dev, 0x33E, size,
- &b43legacy_b_ratetable[2]);
- b43legacy_write_probe_resp_plcp(dev, 0x350, size,
- &b43legacy_b_ratetable[3]);
-
- size = min_t(size_t, size,
- 0x200 - sizeof(struct b43legacy_plcp_hdr6));
- b43legacy_write_template_common(dev, probe_resp_data,
- size, ram_offset,
- shm_size_offset, rate->hw_value);
- kfree(probe_resp_data);
-}
-
-static void b43legacy_upload_beacon0(struct b43legacy_wldev *dev)
-{
- struct b43legacy_wl *wl = dev->wl;
-
- if (wl->beacon0_uploaded)
- return;
- b43legacy_write_beacon_template(dev, 0x68, 0x18);
- /* FIXME: Probe resp upload doesn't really belong here,
- * but we don't use that feature anyway. */
- b43legacy_write_probe_resp_template(dev, 0x268, 0x4A,
- &__b43legacy_ratetable[3]);
- wl->beacon0_uploaded = true;
-}
-
-static void b43legacy_upload_beacon1(struct b43legacy_wldev *dev)
-{
- struct b43legacy_wl *wl = dev->wl;
-
- if (wl->beacon1_uploaded)
- return;
- b43legacy_write_beacon_template(dev, 0x468, 0x1A);
- wl->beacon1_uploaded = true;
-}
-
-static void handle_irq_beacon(struct b43legacy_wldev *dev)
-{
- struct b43legacy_wl *wl = dev->wl;
- u32 cmd, beacon0_valid, beacon1_valid;
-
- if (!b43legacy_is_mode(wl, NL80211_IFTYPE_AP))
- return;
-
- /* This is the bottom half of the asynchronous beacon update. */
-
- /* Ignore interrupt in the future. */
- dev->irq_mask &= ~B43legacy_IRQ_BEACON;
-
- cmd = b43legacy_read32(dev, B43legacy_MMIO_MACCMD);
- beacon0_valid = (cmd & B43legacy_MACCMD_BEACON0_VALID);
- beacon1_valid = (cmd & B43legacy_MACCMD_BEACON1_VALID);
-
- /* Schedule interrupt manually, if busy. */
- if (beacon0_valid && beacon1_valid) {
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON, B43legacy_IRQ_BEACON);
- dev->irq_mask |= B43legacy_IRQ_BEACON;
- return;
- }
-
- if (unlikely(wl->beacon_templates_virgin)) {
- /* We never uploaded a beacon before.
- * Upload both templates now, but only mark one valid. */
- wl->beacon_templates_virgin = false;
- b43legacy_upload_beacon0(dev);
- b43legacy_upload_beacon1(dev);
- cmd = b43legacy_read32(dev, B43legacy_MMIO_MACCMD);
- cmd |= B43legacy_MACCMD_BEACON0_VALID;
- b43legacy_write32(dev, B43legacy_MMIO_MACCMD, cmd);
- } else {
- if (!beacon0_valid) {
- b43legacy_upload_beacon0(dev);
- cmd = b43legacy_read32(dev, B43legacy_MMIO_MACCMD);
- cmd |= B43legacy_MACCMD_BEACON0_VALID;
- b43legacy_write32(dev, B43legacy_MMIO_MACCMD, cmd);
- } else if (!beacon1_valid) {
- b43legacy_upload_beacon1(dev);
- cmd = b43legacy_read32(dev, B43legacy_MMIO_MACCMD);
- cmd |= B43legacy_MACCMD_BEACON1_VALID;
- b43legacy_write32(dev, B43legacy_MMIO_MACCMD, cmd);
- }
- }
-}
-
-static void b43legacy_beacon_update_trigger_work(struct work_struct *work)
-{
- struct b43legacy_wl *wl = container_of(work, struct b43legacy_wl,
- beacon_update_trigger);
- struct b43legacy_wldev *dev;
-
- mutex_lock(&wl->mutex);
- dev = wl->current_dev;
- if (likely(dev && (b43legacy_status(dev) >= B43legacy_STAT_INITIALIZED))) {
- spin_lock_irq(&wl->irq_lock);
- /* Update beacon right away or defer to IRQ. */
- handle_irq_beacon(dev);
- /* The handler might have updated the IRQ mask. */
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK,
- dev->irq_mask);
- mmiowb();
- spin_unlock_irq(&wl->irq_lock);
- }
- mutex_unlock(&wl->mutex);
-}
-
-/* Asynchronously update the packet templates in template RAM.
- * Locking: Requires wl->irq_lock to be locked. */
-static void b43legacy_update_templates(struct b43legacy_wl *wl)
-{
- struct sk_buff *beacon;
- /* This is the top half of the ansynchronous beacon update. The bottom
- * half is the beacon IRQ. Beacon update must be asynchronous to avoid
- * sending an invalid beacon. This can happen for example, if the
- * firmware transmits a beacon while we are updating it. */
-
- /* We could modify the existing beacon and set the aid bit in the TIM
- * field, but that would probably require resizing and moving of data
- * within the beacon template. Simply request a new beacon and let
- * mac80211 do the hard work. */
- beacon = ieee80211_beacon_get(wl->hw, wl->vif);
- if (unlikely(!beacon))
- return;
-
- if (wl->current_beacon)
- dev_kfree_skb_any(wl->current_beacon);
- wl->current_beacon = beacon;
- wl->beacon0_uploaded = false;
- wl->beacon1_uploaded = false;
- ieee80211_queue_work(wl->hw, &wl->beacon_update_trigger);
-}
-
-static void b43legacy_set_beacon_int(struct b43legacy_wldev *dev,
- u16 beacon_int)
-{
- b43legacy_time_lock(dev);
- if (dev->dev->id.revision >= 3) {
- b43legacy_write32(dev, B43legacy_MMIO_TSF_CFP_REP,
- (beacon_int << 16));
- b43legacy_write32(dev, B43legacy_MMIO_TSF_CFP_START,
- (beacon_int << 10));
- } else {
- b43legacy_write16(dev, 0x606, (beacon_int >> 6));
- b43legacy_write16(dev, 0x610, beacon_int);
- }
- b43legacy_time_unlock(dev);
- b43legacydbg(dev->wl, "Set beacon interval to %u\n", beacon_int);
-}
-
-static void handle_irq_ucode_debug(struct b43legacy_wldev *dev)
-{
-}
-
-/* Interrupt handler bottom-half */
-static void b43legacy_interrupt_tasklet(struct b43legacy_wldev *dev)
-{
- u32 reason;
- u32 dma_reason[ARRAY_SIZE(dev->dma_reason)];
- u32 merged_dma_reason = 0;
- int i;
- unsigned long flags;
-
- spin_lock_irqsave(&dev->wl->irq_lock, flags);
-
- B43legacy_WARN_ON(b43legacy_status(dev) <
- B43legacy_STAT_INITIALIZED);
-
- reason = dev->irq_reason;
- for (i = 0; i < ARRAY_SIZE(dma_reason); i++) {
- dma_reason[i] = dev->dma_reason[i];
- merged_dma_reason |= dma_reason[i];
- }
-
- if (unlikely(reason & B43legacy_IRQ_MAC_TXERR))
- b43legacyerr(dev->wl, "MAC transmission error\n");
-
- if (unlikely(reason & B43legacy_IRQ_PHY_TXERR)) {
- b43legacyerr(dev->wl, "PHY transmission error\n");
- rmb();
- if (unlikely(atomic_dec_and_test(&dev->phy.txerr_cnt))) {
- b43legacyerr(dev->wl, "Too many PHY TX errors, "
- "restarting the controller\n");
- b43legacy_controller_restart(dev, "PHY TX errors");
- }
- }
-
- if (unlikely(merged_dma_reason & (B43legacy_DMAIRQ_FATALMASK |
- B43legacy_DMAIRQ_NONFATALMASK))) {
- if (merged_dma_reason & B43legacy_DMAIRQ_FATALMASK) {
- b43legacyerr(dev->wl, "Fatal DMA error: "
- "0x%08X, 0x%08X, 0x%08X, "
- "0x%08X, 0x%08X, 0x%08X\n",
- dma_reason[0], dma_reason[1],
- dma_reason[2], dma_reason[3],
- dma_reason[4], dma_reason[5]);
- b43legacy_controller_restart(dev, "DMA error");
- mmiowb();
- spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
- return;
- }
- if (merged_dma_reason & B43legacy_DMAIRQ_NONFATALMASK)
- b43legacyerr(dev->wl, "DMA error: "
- "0x%08X, 0x%08X, 0x%08X, "
- "0x%08X, 0x%08X, 0x%08X\n",
- dma_reason[0], dma_reason[1],
- dma_reason[2], dma_reason[3],
- dma_reason[4], dma_reason[5]);
- }
-
- if (unlikely(reason & B43legacy_IRQ_UCODE_DEBUG))
- handle_irq_ucode_debug(dev);
- if (reason & B43legacy_IRQ_TBTT_INDI)
- handle_irq_tbtt_indication(dev);
- if (reason & B43legacy_IRQ_ATIM_END)
- handle_irq_atim_end(dev);
- if (reason & B43legacy_IRQ_BEACON)
- handle_irq_beacon(dev);
- if (reason & B43legacy_IRQ_PMQ)
- handle_irq_pmq(dev);
- if (reason & B43legacy_IRQ_TXFIFO_FLUSH_OK)
- ;/*TODO*/
- if (reason & B43legacy_IRQ_NOISESAMPLE_OK)
- handle_irq_noise(dev);
-
- /* Check the DMA reason registers for received data. */
- if (dma_reason[0] & B43legacy_DMAIRQ_RX_DONE) {
- if (b43legacy_using_pio(dev))
- b43legacy_pio_rx(dev->pio.queue0);
- else
- b43legacy_dma_rx(dev->dma.rx_ring0);
- }
- B43legacy_WARN_ON(dma_reason[1] & B43legacy_DMAIRQ_RX_DONE);
- B43legacy_WARN_ON(dma_reason[2] & B43legacy_DMAIRQ_RX_DONE);
- if (dma_reason[3] & B43legacy_DMAIRQ_RX_DONE) {
- if (b43legacy_using_pio(dev))
- b43legacy_pio_rx(dev->pio.queue3);
- else
- b43legacy_dma_rx(dev->dma.rx_ring3);
- }
- B43legacy_WARN_ON(dma_reason[4] & B43legacy_DMAIRQ_RX_DONE);
- B43legacy_WARN_ON(dma_reason[5] & B43legacy_DMAIRQ_RX_DONE);
-
- if (reason & B43legacy_IRQ_TX_OK)
- handle_irq_transmit_status(dev);
-
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask);
- mmiowb();
- spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
-}
-
-static void pio_irq_workaround(struct b43legacy_wldev *dev,
- u16 base, int queueidx)
-{
- u16 rxctl;
-
- rxctl = b43legacy_read16(dev, base + B43legacy_PIO_RXCTL);
- if (rxctl & B43legacy_PIO_RXCTL_DATAAVAILABLE)
- dev->dma_reason[queueidx] |= B43legacy_DMAIRQ_RX_DONE;
- else
- dev->dma_reason[queueidx] &= ~B43legacy_DMAIRQ_RX_DONE;
-}
-
-static void b43legacy_interrupt_ack(struct b43legacy_wldev *dev, u32 reason)
-{
- if (b43legacy_using_pio(dev) &&
- (dev->dev->id.revision < 3) &&
- (!(reason & B43legacy_IRQ_PIO_WORKAROUND))) {
- /* Apply a PIO specific workaround to the dma_reasons */
- pio_irq_workaround(dev, B43legacy_MMIO_PIO1_BASE, 0);
- pio_irq_workaround(dev, B43legacy_MMIO_PIO2_BASE, 1);
- pio_irq_workaround(dev, B43legacy_MMIO_PIO3_BASE, 2);
- pio_irq_workaround(dev, B43legacy_MMIO_PIO4_BASE, 3);
- }
-
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON, reason);
-
- b43legacy_write32(dev, B43legacy_MMIO_DMA0_REASON,
- dev->dma_reason[0]);
- b43legacy_write32(dev, B43legacy_MMIO_DMA1_REASON,
- dev->dma_reason[1]);
- b43legacy_write32(dev, B43legacy_MMIO_DMA2_REASON,
- dev->dma_reason[2]);
- b43legacy_write32(dev, B43legacy_MMIO_DMA3_REASON,
- dev->dma_reason[3]);
- b43legacy_write32(dev, B43legacy_MMIO_DMA4_REASON,
- dev->dma_reason[4]);
- b43legacy_write32(dev, B43legacy_MMIO_DMA5_REASON,
- dev->dma_reason[5]);
-}
-
-/* Interrupt handler top-half */
-static irqreturn_t b43legacy_interrupt_handler(int irq, void *dev_id)
-{
- irqreturn_t ret = IRQ_NONE;
- struct b43legacy_wldev *dev = dev_id;
- u32 reason;
-
- B43legacy_WARN_ON(!dev);
-
- spin_lock(&dev->wl->irq_lock);
-
- if (unlikely(b43legacy_status(dev) < B43legacy_STAT_STARTED))
- /* This can only happen on shared IRQ lines. */
- goto out;
- reason = b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
- if (reason == 0xffffffff) /* shared IRQ */
- goto out;
- ret = IRQ_HANDLED;
- reason &= dev->irq_mask;
- if (!reason)
- goto out;
-
- dev->dma_reason[0] = b43legacy_read32(dev,
- B43legacy_MMIO_DMA0_REASON)
- & 0x0001DC00;
- dev->dma_reason[1] = b43legacy_read32(dev,
- B43legacy_MMIO_DMA1_REASON)
- & 0x0000DC00;
- dev->dma_reason[2] = b43legacy_read32(dev,
- B43legacy_MMIO_DMA2_REASON)
- & 0x0000DC00;
- dev->dma_reason[3] = b43legacy_read32(dev,
- B43legacy_MMIO_DMA3_REASON)
- & 0x0001DC00;
- dev->dma_reason[4] = b43legacy_read32(dev,
- B43legacy_MMIO_DMA4_REASON)
- & 0x0000DC00;
- dev->dma_reason[5] = b43legacy_read32(dev,
- B43legacy_MMIO_DMA5_REASON)
- & 0x0000DC00;
-
- b43legacy_interrupt_ack(dev, reason);
- /* Disable all IRQs. They are enabled again in the bottom half. */
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
- /* Save the reason code and call our bottom half. */
- dev->irq_reason = reason;
- tasklet_schedule(&dev->isr_tasklet);
-out:
- mmiowb();
- spin_unlock(&dev->wl->irq_lock);
-
- return ret;
-}
-
-static void b43legacy_release_firmware(struct b43legacy_wldev *dev)
-{
- release_firmware(dev->fw.ucode);
- dev->fw.ucode = NULL;
- release_firmware(dev->fw.pcm);
- dev->fw.pcm = NULL;
- release_firmware(dev->fw.initvals);
- dev->fw.initvals = NULL;
- release_firmware(dev->fw.initvals_band);
- dev->fw.initvals_band = NULL;
-}
-
-static void b43legacy_print_fw_helptext(struct b43legacy_wl *wl)
-{
- b43legacyerr(wl, "You must go to http://wireless.kernel.org/en/users/"
- "Drivers/b43#devicefirmware "
- "and download the correct firmware (version 3).\n");
-}
-
-static void b43legacy_fw_cb(const struct firmware *firmware, void *context)
-{
- struct b43legacy_wldev *dev = context;
-
- dev->fwp = firmware;
- complete(&dev->fw_load_complete);
-}
-
-static int do_request_fw(struct b43legacy_wldev *dev,
- const char *name,
- const struct firmware **fw, bool async)
-{
- char path[sizeof(modparam_fwpostfix) + 32];
- struct b43legacy_fw_header *hdr;
- u32 size;
- int err;
-
- if (!name)
- return 0;
-
- snprintf(path, ARRAY_SIZE(path),
- "b43legacy%s/%s.fw",
- modparam_fwpostfix, name);
- b43legacyinfo(dev->wl, "Loading firmware %s\n", path);
- if (async) {
- init_completion(&dev->fw_load_complete);
- err = request_firmware_nowait(THIS_MODULE, 1, path,
- dev->dev->dev, GFP_KERNEL,
- dev, b43legacy_fw_cb);
- if (err) {
- b43legacyerr(dev->wl, "Unable to load firmware\n");
- return err;
- }
- /* stall here until fw ready */
- wait_for_completion(&dev->fw_load_complete);
- if (!dev->fwp)
- err = -EINVAL;
- *fw = dev->fwp;
- } else {
- err = request_firmware(fw, path, dev->dev->dev);
- }
- if (err) {
- b43legacyerr(dev->wl, "Firmware file \"%s\" not found "
- "or load failed.\n", path);
- return err;
- }
- if ((*fw)->size < sizeof(struct b43legacy_fw_header))
- goto err_format;
- hdr = (struct b43legacy_fw_header *)((*fw)->data);
- switch (hdr->type) {
- case B43legacy_FW_TYPE_UCODE:
- case B43legacy_FW_TYPE_PCM:
- size = be32_to_cpu(hdr->size);
- if (size != (*fw)->size - sizeof(struct b43legacy_fw_header))
- goto err_format;
- /* fallthrough */
- case B43legacy_FW_TYPE_IV:
- if (hdr->ver != 1)
- goto err_format;
- break;
- default:
- goto err_format;
- }
-
- return err;
-
-err_format:
- b43legacyerr(dev->wl, "Firmware file \"%s\" format error.\n", path);
- return -EPROTO;
-}
-
-static int b43legacy_one_core_attach(struct ssb_device *dev,
- struct b43legacy_wl *wl);
-static void b43legacy_one_core_detach(struct ssb_device *dev);
-
-static void b43legacy_request_firmware(struct work_struct *work)
-{
- struct b43legacy_wl *wl = container_of(work,
- struct b43legacy_wl, firmware_load);
- struct b43legacy_wldev *dev = wl->current_dev;
- struct b43legacy_firmware *fw = &dev->fw;
- const u8 rev = dev->dev->id.revision;
- const char *filename;
- int err;
-
- if (!fw->ucode) {
- if (rev == 2)
- filename = "ucode2";
- else if (rev == 4)
- filename = "ucode4";
- else
- filename = "ucode5";
- err = do_request_fw(dev, filename, &fw->ucode, true);
- if (err)
- goto err_load;
- }
- if (!fw->pcm) {
- if (rev < 5)
- filename = "pcm4";
- else
- filename = "pcm5";
- err = do_request_fw(dev, filename, &fw->pcm, false);
- if (err)
- goto err_load;
- }
- if (!fw->initvals) {
- switch (dev->phy.type) {
- case B43legacy_PHYTYPE_B:
- case B43legacy_PHYTYPE_G:
- if ((rev >= 5) && (rev <= 10))
- filename = "b0g0initvals5";
- else if (rev == 2 || rev == 4)
- filename = "b0g0initvals2";
- else
- goto err_no_initvals;
- break;
- default:
- goto err_no_initvals;
- }
- err = do_request_fw(dev, filename, &fw->initvals, false);
- if (err)
- goto err_load;
- }
- if (!fw->initvals_band) {
- switch (dev->phy.type) {
- case B43legacy_PHYTYPE_B:
- case B43legacy_PHYTYPE_G:
- if ((rev >= 5) && (rev <= 10))
- filename = "b0g0bsinitvals5";
- else if (rev >= 11)
- filename = NULL;
- else if (rev == 2 || rev == 4)
- filename = NULL;
- else
- goto err_no_initvals;
- break;
- default:
- goto err_no_initvals;
- }
- err = do_request_fw(dev, filename, &fw->initvals_band, false);
- if (err)
- goto err_load;
- }
- err = ieee80211_register_hw(wl->hw);
- if (err)
- goto err_one_core_detach;
- return;
-
-err_one_core_detach:
- b43legacy_one_core_detach(dev->dev);
- goto error;
-
-err_load:
- b43legacy_print_fw_helptext(dev->wl);
- goto error;
-
-err_no_initvals:
- err = -ENODEV;
- b43legacyerr(dev->wl, "No Initial Values firmware file for PHY %u, "
- "core rev %u\n", dev->phy.type, rev);
- goto error;
-
-error:
- b43legacy_release_firmware(dev);
- return;
-}
-
-static int b43legacy_upload_microcode(struct b43legacy_wldev *dev)
-{
- struct wiphy *wiphy = dev->wl->hw->wiphy;
- const size_t hdr_len = sizeof(struct b43legacy_fw_header);
- const __be32 *data;
- unsigned int i;
- unsigned int len;
- u16 fwrev;
- u16 fwpatch;
- u16 fwdate;
- u16 fwtime;
- u32 tmp, macctl;
- int err = 0;
-
- /* Jump the microcode PSM to offset 0 */
- macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- B43legacy_WARN_ON(macctl & B43legacy_MACCTL_PSM_RUN);
- macctl |= B43legacy_MACCTL_PSM_JMP0;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
- /* Zero out all microcode PSM registers and shared memory. */
- for (i = 0; i < 64; i++)
- b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, i, 0);
- for (i = 0; i < 4096; i += 2)
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, i, 0);
-
- /* Upload Microcode. */
- data = (__be32 *) (dev->fw.ucode->data + hdr_len);
- len = (dev->fw.ucode->size - hdr_len) / sizeof(__be32);
- b43legacy_shm_control_word(dev,
- B43legacy_SHM_UCODE |
- B43legacy_SHM_AUTOINC_W,
- 0x0000);
- for (i = 0; i < len; i++) {
- b43legacy_write32(dev, B43legacy_MMIO_SHM_DATA,
- be32_to_cpu(data[i]));
- udelay(10);
- }
-
- if (dev->fw.pcm) {
- /* Upload PCM data. */
- data = (__be32 *) (dev->fw.pcm->data + hdr_len);
- len = (dev->fw.pcm->size - hdr_len) / sizeof(__be32);
- b43legacy_shm_control_word(dev, B43legacy_SHM_HW, 0x01EA);
- b43legacy_write32(dev, B43legacy_MMIO_SHM_DATA, 0x00004000);
- /* No need for autoinc bit in SHM_HW */
- b43legacy_shm_control_word(dev, B43legacy_SHM_HW, 0x01EB);
- for (i = 0; i < len; i++) {
- b43legacy_write32(dev, B43legacy_MMIO_SHM_DATA,
- be32_to_cpu(data[i]));
- udelay(10);
- }
- }
-
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON,
- B43legacy_IRQ_ALL);
-
- /* Start the microcode PSM */
- macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- macctl &= ~B43legacy_MACCTL_PSM_JMP0;
- macctl |= B43legacy_MACCTL_PSM_RUN;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
-
- /* Wait for the microcode to load and respond */
- i = 0;
- while (1) {
- tmp = b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
- if (tmp == B43legacy_IRQ_MAC_SUSPENDED)
- break;
- i++;
- if (i >= B43legacy_IRQWAIT_MAX_RETRIES) {
- b43legacyerr(dev->wl, "Microcode not responding\n");
- b43legacy_print_fw_helptext(dev->wl);
- err = -ENODEV;
- goto error;
- }
- msleep_interruptible(50);
- if (signal_pending(current)) {
- err = -EINTR;
- goto error;
- }
- }
- /* dummy read follows */
- b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
-
- /* Get and check the revisions. */
- fwrev = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_UCODEREV);
- fwpatch = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_UCODEPATCH);
- fwdate = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_UCODEDATE);
- fwtime = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_UCODETIME);
-
- if (fwrev > 0x128) {
- b43legacyerr(dev->wl, "YOU ARE TRYING TO LOAD V4 FIRMWARE."
- " Only firmware from binary drivers version 3.x"
- " is supported. You must change your firmware"
- " files.\n");
- b43legacy_print_fw_helptext(dev->wl);
- err = -EOPNOTSUPP;
- goto error;
- }
- b43legacyinfo(dev->wl, "Loading firmware version 0x%X, patch level %u "
- "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n", fwrev, fwpatch,
- (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF,
- (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F,
- fwtime & 0x1F);
-
- dev->fw.rev = fwrev;
- dev->fw.patch = fwpatch;
-
- snprintf(wiphy->fw_version, sizeof(wiphy->fw_version), "%u.%u",
- dev->fw.rev, dev->fw.patch);
- wiphy->hw_version = dev->dev->id.coreid;
-
- return 0;
-
-error:
- macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- macctl &= ~B43legacy_MACCTL_PSM_RUN;
- macctl |= B43legacy_MACCTL_PSM_JMP0;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
-
- return err;
-}
-
-static int b43legacy_write_initvals(struct b43legacy_wldev *dev,
- const struct b43legacy_iv *ivals,
- size_t count,
- size_t array_size)
-{
- const struct b43legacy_iv *iv;
- u16 offset;
- size_t i;
- bool bit32;
-
- BUILD_BUG_ON(sizeof(struct b43legacy_iv) != 6);
- iv = ivals;
- for (i = 0; i < count; i++) {
- if (array_size < sizeof(iv->offset_size))
- goto err_format;
- array_size -= sizeof(iv->offset_size);
- offset = be16_to_cpu(iv->offset_size);
- bit32 = !!(offset & B43legacy_IV_32BIT);
- offset &= B43legacy_IV_OFFSET_MASK;
- if (offset >= 0x1000)
- goto err_format;
- if (bit32) {
- u32 value;
-
- if (array_size < sizeof(iv->data.d32))
- goto err_format;
- array_size -= sizeof(iv->data.d32);
-
- value = get_unaligned_be32(&iv->data.d32);
- b43legacy_write32(dev, offset, value);
-
- iv = (const struct b43legacy_iv *)((const uint8_t *)iv +
- sizeof(__be16) +
- sizeof(__be32));
- } else {
- u16 value;
-
- if (array_size < sizeof(iv->data.d16))
- goto err_format;
- array_size -= sizeof(iv->data.d16);
-
- value = be16_to_cpu(iv->data.d16);
- b43legacy_write16(dev, offset, value);
-
- iv = (const struct b43legacy_iv *)((const uint8_t *)iv +
- sizeof(__be16) +
- sizeof(__be16));
- }
- }
- if (array_size)
- goto err_format;
-
- return 0;
-
-err_format:
- b43legacyerr(dev->wl, "Initial Values Firmware file-format error.\n");
- b43legacy_print_fw_helptext(dev->wl);
-
- return -EPROTO;
-}
-
-static int b43legacy_upload_initvals(struct b43legacy_wldev *dev)
-{
- const size_t hdr_len = sizeof(struct b43legacy_fw_header);
- const struct b43legacy_fw_header *hdr;
- struct b43legacy_firmware *fw = &dev->fw;
- const struct b43legacy_iv *ivals;
- size_t count;
- int err;
-
- hdr = (const struct b43legacy_fw_header *)(fw->initvals->data);
- ivals = (const struct b43legacy_iv *)(fw->initvals->data + hdr_len);
- count = be32_to_cpu(hdr->size);
- err = b43legacy_write_initvals(dev, ivals, count,
- fw->initvals->size - hdr_len);
- if (err)
- goto out;
- if (fw->initvals_band) {
- hdr = (const struct b43legacy_fw_header *)
- (fw->initvals_band->data);
- ivals = (const struct b43legacy_iv *)(fw->initvals_band->data
- + hdr_len);
- count = be32_to_cpu(hdr->size);
- err = b43legacy_write_initvals(dev, ivals, count,
- fw->initvals_band->size - hdr_len);
- if (err)
- goto out;
- }
-out:
-
- return err;
-}
-
-/* Initialize the GPIOs
- * http://bcm-specs.sipsolutions.net/GPIO
- */
-static int b43legacy_gpio_init(struct b43legacy_wldev *dev)
-{
- struct ssb_bus *bus = dev->dev->bus;
- struct ssb_device *gpiodev, *pcidev = NULL;
- u32 mask;
- u32 set;
-
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL,
- b43legacy_read32(dev,
- B43legacy_MMIO_MACCTL)
- & 0xFFFF3FFF);
-
- b43legacy_write16(dev, B43legacy_MMIO_GPIO_MASK,
- b43legacy_read16(dev,
- B43legacy_MMIO_GPIO_MASK)
- | 0x000F);
-
- mask = 0x0000001F;
- set = 0x0000000F;
- if (dev->dev->bus->chip_id == 0x4301) {
- mask |= 0x0060;
- set |= 0x0060;
- }
- if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_PACTRL) {
- b43legacy_write16(dev, B43legacy_MMIO_GPIO_MASK,
- b43legacy_read16(dev,
- B43legacy_MMIO_GPIO_MASK)
- | 0x0200);
- mask |= 0x0200;
- set |= 0x0200;
- }
- if (dev->dev->id.revision >= 2)
- mask |= 0x0010; /* FIXME: This is redundant. */
-
-#ifdef CONFIG_SSB_DRIVER_PCICORE
- pcidev = bus->pcicore.dev;
-#endif
- gpiodev = bus->chipco.dev ? : pcidev;
- if (!gpiodev)
- return 0;
- ssb_write32(gpiodev, B43legacy_GPIO_CONTROL,
- (ssb_read32(gpiodev, B43legacy_GPIO_CONTROL)
- & ~mask) | set);
-
- return 0;
-}
-
-/* Turn off all GPIO stuff. Call this on module unload, for example. */
-static void b43legacy_gpio_cleanup(struct b43legacy_wldev *dev)
-{
- struct ssb_bus *bus = dev->dev->bus;
- struct ssb_device *gpiodev, *pcidev = NULL;
-
-#ifdef CONFIG_SSB_DRIVER_PCICORE
- pcidev = bus->pcicore.dev;
-#endif
- gpiodev = bus->chipco.dev ? : pcidev;
- if (!gpiodev)
- return;
- ssb_write32(gpiodev, B43legacy_GPIO_CONTROL, 0);
-}
-
-/* http://bcm-specs.sipsolutions.net/EnableMac */
-void b43legacy_mac_enable(struct b43legacy_wldev *dev)
-{
- dev->mac_suspended--;
- B43legacy_WARN_ON(dev->mac_suspended < 0);
- B43legacy_WARN_ON(irqs_disabled());
- if (dev->mac_suspended == 0) {
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL,
- b43legacy_read32(dev,
- B43legacy_MMIO_MACCTL)
- | B43legacy_MACCTL_ENABLED);
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON,
- B43legacy_IRQ_MAC_SUSPENDED);
- /* the next two are dummy reads */
- b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
- b43legacy_power_saving_ctl_bits(dev, -1, -1);
-
- /* Re-enable IRQs. */
- spin_lock_irq(&dev->wl->irq_lock);
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK,
- dev->irq_mask);
- spin_unlock_irq(&dev->wl->irq_lock);
- }
-}
-
-/* http://bcm-specs.sipsolutions.net/SuspendMAC */
-void b43legacy_mac_suspend(struct b43legacy_wldev *dev)
-{
- int i;
- u32 tmp;
-
- might_sleep();
- B43legacy_WARN_ON(irqs_disabled());
- B43legacy_WARN_ON(dev->mac_suspended < 0);
-
- if (dev->mac_suspended == 0) {
- /* Mask IRQs before suspending MAC. Otherwise
- * the MAC stays busy and won't suspend. */
- spin_lock_irq(&dev->wl->irq_lock);
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
- spin_unlock_irq(&dev->wl->irq_lock);
- b43legacy_synchronize_irq(dev);
-
- b43legacy_power_saving_ctl_bits(dev, -1, 1);
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL,
- b43legacy_read32(dev,
- B43legacy_MMIO_MACCTL)
- & ~B43legacy_MACCTL_ENABLED);
- b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
- for (i = 40; i; i--) {
- tmp = b43legacy_read32(dev,
- B43legacy_MMIO_GEN_IRQ_REASON);
- if (tmp & B43legacy_IRQ_MAC_SUSPENDED)
- goto out;
- msleep(1);
- }
- b43legacyerr(dev->wl, "MAC suspend failed\n");
- }
-out:
- dev->mac_suspended++;
-}
-
-static void b43legacy_adjust_opmode(struct b43legacy_wldev *dev)
-{
- struct b43legacy_wl *wl = dev->wl;
- u32 ctl;
- u16 cfp_pretbtt;
-
- ctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- /* Reset status to STA infrastructure mode. */
- ctl &= ~B43legacy_MACCTL_AP;
- ctl &= ~B43legacy_MACCTL_KEEP_CTL;
- ctl &= ~B43legacy_MACCTL_KEEP_BADPLCP;
- ctl &= ~B43legacy_MACCTL_KEEP_BAD;
- ctl &= ~B43legacy_MACCTL_PROMISC;
- ctl &= ~B43legacy_MACCTL_BEACPROMISC;
- ctl |= B43legacy_MACCTL_INFRA;
-
- if (b43legacy_is_mode(wl, NL80211_IFTYPE_AP))
- ctl |= B43legacy_MACCTL_AP;
- else if (b43legacy_is_mode(wl, NL80211_IFTYPE_ADHOC))
- ctl &= ~B43legacy_MACCTL_INFRA;
-
- if (wl->filter_flags & FIF_CONTROL)
- ctl |= B43legacy_MACCTL_KEEP_CTL;
- if (wl->filter_flags & FIF_FCSFAIL)
- ctl |= B43legacy_MACCTL_KEEP_BAD;
- if (wl->filter_flags & FIF_PLCPFAIL)
- ctl |= B43legacy_MACCTL_KEEP_BADPLCP;
- if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC)
- ctl |= B43legacy_MACCTL_BEACPROMISC;
-
- /* Workaround: On old hardware the HW-MAC-address-filter
- * doesn't work properly, so always run promisc in filter
- * it in software. */
- if (dev->dev->id.revision <= 4)
- ctl |= B43legacy_MACCTL_PROMISC;
-
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, ctl);
-
- cfp_pretbtt = 2;
- if ((ctl & B43legacy_MACCTL_INFRA) &&
- !(ctl & B43legacy_MACCTL_AP)) {
- if (dev->dev->bus->chip_id == 0x4306 &&
- dev->dev->bus->chip_rev == 3)
- cfp_pretbtt = 100;
- else
- cfp_pretbtt = 50;
- }
- b43legacy_write16(dev, 0x612, cfp_pretbtt);
-}
-
-static void b43legacy_rate_memory_write(struct b43legacy_wldev *dev,
- u16 rate,
- int is_ofdm)
-{
- u16 offset;
-
- if (is_ofdm) {
- offset = 0x480;
- offset += (b43legacy_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2;
- } else {
- offset = 0x4C0;
- offset += (b43legacy_plcp_get_ratecode_cck(rate) & 0x000F) * 2;
- }
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, offset + 0x20,
- b43legacy_shm_read16(dev,
- B43legacy_SHM_SHARED, offset));
-}
-
-static void b43legacy_rate_memory_init(struct b43legacy_wldev *dev)
-{
- switch (dev->phy.type) {
- case B43legacy_PHYTYPE_G:
- b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_6MB, 1);
- b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_12MB, 1);
- b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_18MB, 1);
- b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_24MB, 1);
- b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_36MB, 1);
- b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_48MB, 1);
- b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_54MB, 1);
- /* fallthrough */
- case B43legacy_PHYTYPE_B:
- b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_1MB, 0);
- b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_2MB, 0);
- b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_5MB, 0);
- b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_11MB, 0);
- break;
- default:
- B43legacy_BUG_ON(1);
- }
-}
-
-/* Set the TX-Antenna for management frames sent by firmware. */
-static void b43legacy_mgmtframe_txantenna(struct b43legacy_wldev *dev,
- int antenna)
-{
- u16 ant = 0;
- u16 tmp;
-
- switch (antenna) {
- case B43legacy_ANTENNA0:
- ant |= B43legacy_TX4_PHY_ANT0;
- break;
- case B43legacy_ANTENNA1:
- ant |= B43legacy_TX4_PHY_ANT1;
- break;
- case B43legacy_ANTENNA_AUTO:
- ant |= B43legacy_TX4_PHY_ANTLAST;
- break;
- default:
- B43legacy_BUG_ON(1);
- }
-
- /* FIXME We also need to set the other flags of the PHY control
- * field somewhere. */
-
- /* For Beacons */
- tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_BEACPHYCTL);
- tmp = (tmp & ~B43legacy_TX4_PHY_ANT) | ant;
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_BEACPHYCTL, tmp);
- /* For ACK/CTS */
- tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_ACKCTSPHYCTL);
- tmp = (tmp & ~B43legacy_TX4_PHY_ANT) | ant;
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_ACKCTSPHYCTL, tmp);
- /* For Probe Resposes */
- tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_PRPHYCTL);
- tmp = (tmp & ~B43legacy_TX4_PHY_ANT) | ant;
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_PRPHYCTL, tmp);
-}
-
-/* This is the opposite of b43legacy_chip_init() */
-static void b43legacy_chip_exit(struct b43legacy_wldev *dev)
-{
- b43legacy_radio_turn_off(dev, 1);
- b43legacy_gpio_cleanup(dev);
- /* firmware is released later */
-}
-
-/* Initialize the chip
- * http://bcm-specs.sipsolutions.net/ChipInit
- */
-static int b43legacy_chip_init(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- int err;
- int tmp;
- u32 value32, macctl;
- u16 value16;
-
- /* Initialize the MAC control */
- macctl = B43legacy_MACCTL_IHR_ENABLED | B43legacy_MACCTL_SHM_ENABLED;
- if (dev->phy.gmode)
- macctl |= B43legacy_MACCTL_GMODE;
- macctl |= B43legacy_MACCTL_INFRA;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
-
- err = b43legacy_upload_microcode(dev);
- if (err)
- goto out; /* firmware is released later */
-
- err = b43legacy_gpio_init(dev);
- if (err)
- goto out; /* firmware is released later */
-
- err = b43legacy_upload_initvals(dev);
- if (err)
- goto err_gpio_clean;
- b43legacy_radio_turn_on(dev);
-
- b43legacy_write16(dev, 0x03E6, 0x0000);
- err = b43legacy_phy_init(dev);
- if (err)
- goto err_radio_off;
-
- /* Select initial Interference Mitigation. */
- tmp = phy->interfmode;
- phy->interfmode = B43legacy_INTERFMODE_NONE;
- b43legacy_radio_set_interference_mitigation(dev, tmp);
-
- b43legacy_phy_set_antenna_diversity(dev);
- b43legacy_mgmtframe_txantenna(dev, B43legacy_ANTENNA_DEFAULT);
-
- if (phy->type == B43legacy_PHYTYPE_B) {
- value16 = b43legacy_read16(dev, 0x005E);
- value16 |= 0x0004;
- b43legacy_write16(dev, 0x005E, value16);
- }
- b43legacy_write32(dev, 0x0100, 0x01000000);
- if (dev->dev->id.revision < 5)
- b43legacy_write32(dev, 0x010C, 0x01000000);
-
- value32 = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- value32 &= ~B43legacy_MACCTL_INFRA;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, value32);
- value32 = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- value32 |= B43legacy_MACCTL_INFRA;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, value32);
-
- if (b43legacy_using_pio(dev)) {
- b43legacy_write32(dev, 0x0210, 0x00000100);
- b43legacy_write32(dev, 0x0230, 0x00000100);
- b43legacy_write32(dev, 0x0250, 0x00000100);
- b43legacy_write32(dev, 0x0270, 0x00000100);
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0034,
- 0x0000);
- }
-
- /* Probe Response Timeout value */
- /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0074, 0x0000);
-
- /* Initially set the wireless operation mode. */
- b43legacy_adjust_opmode(dev);
-
- if (dev->dev->id.revision < 3) {
- b43legacy_write16(dev, 0x060E, 0x0000);
- b43legacy_write16(dev, 0x0610, 0x8000);
- b43legacy_write16(dev, 0x0604, 0x0000);
- b43legacy_write16(dev, 0x0606, 0x0200);
- } else {
- b43legacy_write32(dev, 0x0188, 0x80000000);
- b43legacy_write32(dev, 0x018C, 0x02000000);
- }
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON, 0x00004000);
- b43legacy_write32(dev, B43legacy_MMIO_DMA0_IRQ_MASK, 0x0001DC00);
- b43legacy_write32(dev, B43legacy_MMIO_DMA1_IRQ_MASK, 0x0000DC00);
- b43legacy_write32(dev, B43legacy_MMIO_DMA2_IRQ_MASK, 0x0000DC00);
- b43legacy_write32(dev, B43legacy_MMIO_DMA3_IRQ_MASK, 0x0001DC00);
- b43legacy_write32(dev, B43legacy_MMIO_DMA4_IRQ_MASK, 0x0000DC00);
- b43legacy_write32(dev, B43legacy_MMIO_DMA5_IRQ_MASK, 0x0000DC00);
-
- value32 = ssb_read32(dev->dev, SSB_TMSLOW);
- value32 |= B43legacy_TMSLOW_MACPHYCLKEN;
- ssb_write32(dev->dev, SSB_TMSLOW, value32);
-
- b43legacy_write16(dev, B43legacy_MMIO_POWERUP_DELAY,
- dev->dev->bus->chipco.fast_pwrup_delay);
-
- /* PHY TX errors counter. */
- atomic_set(&phy->txerr_cnt, B43legacy_PHY_TX_BADNESS_LIMIT);
-
- B43legacy_WARN_ON(err != 0);
- b43legacydbg(dev->wl, "Chip initialized\n");
-out:
- return err;
-
-err_radio_off:
- b43legacy_radio_turn_off(dev, 1);
-err_gpio_clean:
- b43legacy_gpio_cleanup(dev);
- goto out;
-}
-
-static void b43legacy_periodic_every120sec(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
-
- if (phy->type != B43legacy_PHYTYPE_G || phy->rev < 2)
- return;
-
- b43legacy_mac_suspend(dev);
- b43legacy_phy_lo_g_measure(dev);
- b43legacy_mac_enable(dev);
-}
-
-static void b43legacy_periodic_every60sec(struct b43legacy_wldev *dev)
-{
- b43legacy_phy_lo_mark_all_unused(dev);
- if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_RSSI) {
- b43legacy_mac_suspend(dev);
- b43legacy_calc_nrssi_slope(dev);
- b43legacy_mac_enable(dev);
- }
-}
-
-static void b43legacy_periodic_every30sec(struct b43legacy_wldev *dev)
-{
- /* Update device statistics. */
- b43legacy_calculate_link_quality(dev);
-}
-
-static void b43legacy_periodic_every15sec(struct b43legacy_wldev *dev)
-{
- b43legacy_phy_xmitpower(dev); /* FIXME: unless scanning? */
-
- atomic_set(&dev->phy.txerr_cnt, B43legacy_PHY_TX_BADNESS_LIMIT);
- wmb();
-}
-
-static void do_periodic_work(struct b43legacy_wldev *dev)
-{
- unsigned int state;
-
- state = dev->periodic_state;
- if (state % 8 == 0)
- b43legacy_periodic_every120sec(dev);
- if (state % 4 == 0)
- b43legacy_periodic_every60sec(dev);
- if (state % 2 == 0)
- b43legacy_periodic_every30sec(dev);
- b43legacy_periodic_every15sec(dev);
-}
-
-/* Periodic work locking policy:
- * The whole periodic work handler is protected by
- * wl->mutex. If another lock is needed somewhere in the
- * pwork callchain, it's acquired in-place, where it's needed.
- */
-static void b43legacy_periodic_work_handler(struct work_struct *work)
-{
- struct b43legacy_wldev *dev = container_of(work, struct b43legacy_wldev,
- periodic_work.work);
- struct b43legacy_wl *wl = dev->wl;
- unsigned long delay;
-
- mutex_lock(&wl->mutex);
-
- if (unlikely(b43legacy_status(dev) != B43legacy_STAT_STARTED))
- goto out;
- if (b43legacy_debug(dev, B43legacy_DBG_PWORK_STOP))
- goto out_requeue;
-
- do_periodic_work(dev);
-
- dev->periodic_state++;
-out_requeue:
- if (b43legacy_debug(dev, B43legacy_DBG_PWORK_FAST))
- delay = msecs_to_jiffies(50);
- else
- delay = round_jiffies_relative(HZ * 15);
- ieee80211_queue_delayed_work(wl->hw, &dev->periodic_work, delay);
-out:
- mutex_unlock(&wl->mutex);
-}
-
-static void b43legacy_periodic_tasks_setup(struct b43legacy_wldev *dev)
-{
- struct delayed_work *work = &dev->periodic_work;
-
- dev->periodic_state = 0;
- INIT_DELAYED_WORK(work, b43legacy_periodic_work_handler);
- ieee80211_queue_delayed_work(dev->wl->hw, work, 0);
-}
-
-/* Validate access to the chip (SHM) */
-static int b43legacy_validate_chipaccess(struct b43legacy_wldev *dev)
-{
- u32 value;
- u32 shm_backup;
-
- shm_backup = b43legacy_shm_read32(dev, B43legacy_SHM_SHARED, 0);
- b43legacy_shm_write32(dev, B43legacy_SHM_SHARED, 0, 0xAA5555AA);
- if (b43legacy_shm_read32(dev, B43legacy_SHM_SHARED, 0) !=
- 0xAA5555AA)
- goto error;
- b43legacy_shm_write32(dev, B43legacy_SHM_SHARED, 0, 0x55AAAA55);
- if (b43legacy_shm_read32(dev, B43legacy_SHM_SHARED, 0) !=
- 0x55AAAA55)
- goto error;
- b43legacy_shm_write32(dev, B43legacy_SHM_SHARED, 0, shm_backup);
-
- value = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- if ((value | B43legacy_MACCTL_GMODE) !=
- (B43legacy_MACCTL_GMODE | B43legacy_MACCTL_IHR_ENABLED))
- goto error;
-
- value = b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
- if (value)
- goto error;
-
- return 0;
-error:
- b43legacyerr(dev->wl, "Failed to validate the chipaccess\n");
- return -ENODEV;
-}
-
-static void b43legacy_security_init(struct b43legacy_wldev *dev)
-{
- dev->max_nr_keys = (dev->dev->id.revision >= 5) ? 58 : 20;
- B43legacy_WARN_ON(dev->max_nr_keys > ARRAY_SIZE(dev->key));
- dev->ktp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- 0x0056);
- /* KTP is a word address, but we address SHM bytewise.
- * So multiply by two.
- */
- dev->ktp *= 2;
- if (dev->dev->id.revision >= 5)
- /* Number of RCMTA address slots */
- b43legacy_write16(dev, B43legacy_MMIO_RCMTA_COUNT,
- dev->max_nr_keys - 8);
-}
-
-#ifdef CONFIG_B43LEGACY_HWRNG
-static int b43legacy_rng_read(struct hwrng *rng, u32 *data)
-{
- struct b43legacy_wl *wl = (struct b43legacy_wl *)rng->priv;
- unsigned long flags;
-
- /* Don't take wl->mutex here, as it could deadlock with
- * hwrng internal locking. It's not needed to take
- * wl->mutex here, anyway. */
-
- spin_lock_irqsave(&wl->irq_lock, flags);
- *data = b43legacy_read16(wl->current_dev, B43legacy_MMIO_RNG);
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-
- return (sizeof(u16));
-}
-#endif
-
-static void b43legacy_rng_exit(struct b43legacy_wl *wl)
-{
-#ifdef CONFIG_B43LEGACY_HWRNG
- if (wl->rng_initialized)
- hwrng_unregister(&wl->rng);
-#endif
-}
-
-static int b43legacy_rng_init(struct b43legacy_wl *wl)
-{
- int err = 0;
-
-#ifdef CONFIG_B43LEGACY_HWRNG
- snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name),
- "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy));
- wl->rng.name = wl->rng_name;
- wl->rng.data_read = b43legacy_rng_read;
- wl->rng.priv = (unsigned long)wl;
- wl->rng_initialized = 1;
- err = hwrng_register(&wl->rng);
- if (err) {
- wl->rng_initialized = 0;
- b43legacyerr(wl, "Failed to register the random "
- "number generator (%d)\n", err);
- }
-
-#endif
- return err;
-}
-
-static void b43legacy_tx_work(struct work_struct *work)
-{
- struct b43legacy_wl *wl = container_of(work, struct b43legacy_wl,
- tx_work);
- struct b43legacy_wldev *dev;
- struct sk_buff *skb;
- int queue_num;
- int err = 0;
-
- mutex_lock(&wl->mutex);
- dev = wl->current_dev;
- if (unlikely(!dev || b43legacy_status(dev) < B43legacy_STAT_STARTED)) {
- mutex_unlock(&wl->mutex);
- return;
- }
-
- for (queue_num = 0; queue_num < B43legacy_QOS_QUEUE_NUM; queue_num++) {
- while (skb_queue_len(&wl->tx_queue[queue_num])) {
- skb = skb_dequeue(&wl->tx_queue[queue_num]);
- if (b43legacy_using_pio(dev))
- err = b43legacy_pio_tx(dev, skb);
- else
- err = b43legacy_dma_tx(dev, skb);
- if (err == -ENOSPC) {
- wl->tx_queue_stopped[queue_num] = 1;
- ieee80211_stop_queue(wl->hw, queue_num);
- skb_queue_head(&wl->tx_queue[queue_num], skb);
- break;
- }
- if (unlikely(err))
- dev_kfree_skb(skb); /* Drop it */
- err = 0;
- }
-
- if (!err)
- wl->tx_queue_stopped[queue_num] = 0;
- }
-
- mutex_unlock(&wl->mutex);
-}
-
-static void b43legacy_op_tx(struct ieee80211_hw *hw,
- struct ieee80211_tx_control *control,
- struct sk_buff *skb)
-{
- struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
-
- if (unlikely(skb->len < 2 + 2 + 6)) {
- /* Too short, this can't be a valid frame. */
- dev_kfree_skb_any(skb);
- return;
- }
- B43legacy_WARN_ON(skb_shinfo(skb)->nr_frags);
-
- skb_queue_tail(&wl->tx_queue[skb->queue_mapping], skb);
- if (!wl->tx_queue_stopped[skb->queue_mapping])
- ieee80211_queue_work(wl->hw, &wl->tx_work);
- else
- ieee80211_stop_queue(wl->hw, skb->queue_mapping);
-}
-
-static int b43legacy_op_conf_tx(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif, u16 queue,
- const struct ieee80211_tx_queue_params *params)
-{
- return 0;
-}
-
-static int b43legacy_op_get_stats(struct ieee80211_hw *hw,
- struct ieee80211_low_level_stats *stats)
-{
- struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
- unsigned long flags;
-
- spin_lock_irqsave(&wl->irq_lock, flags);
- memcpy(stats, &wl->ieee_stats, sizeof(*stats));
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-
- return 0;
-}
-
-static const char *phymode_to_string(unsigned int phymode)
-{
- switch (phymode) {
- case B43legacy_PHYMODE_B:
- return "B";
- case B43legacy_PHYMODE_G:
- return "G";
- default:
- B43legacy_BUG_ON(1);
- }
- return "";
-}
-
-static int find_wldev_for_phymode(struct b43legacy_wl *wl,
- unsigned int phymode,
- struct b43legacy_wldev **dev,
- bool *gmode)
-{
- struct b43legacy_wldev *d;
-
- list_for_each_entry(d, &wl->devlist, list) {
- if (d->phy.possible_phymodes & phymode) {
- /* Ok, this device supports the PHY-mode.
- * Set the gmode bit. */
- *gmode = true;
- *dev = d;
-
- return 0;
- }
- }
-
- return -ESRCH;
-}
-
-static void b43legacy_put_phy_into_reset(struct b43legacy_wldev *dev)
-{
- struct ssb_device *sdev = dev->dev;
- u32 tmslow;
-
- tmslow = ssb_read32(sdev, SSB_TMSLOW);
- tmslow &= ~B43legacy_TMSLOW_GMODE;
- tmslow |= B43legacy_TMSLOW_PHYRESET;
- tmslow |= SSB_TMSLOW_FGC;
- ssb_write32(sdev, SSB_TMSLOW, tmslow);
- msleep(1);
-
- tmslow = ssb_read32(sdev, SSB_TMSLOW);
- tmslow &= ~SSB_TMSLOW_FGC;
- tmslow |= B43legacy_TMSLOW_PHYRESET;
- ssb_write32(sdev, SSB_TMSLOW, tmslow);
- msleep(1);
-}
-
-/* Expects wl->mutex locked */
-static int b43legacy_switch_phymode(struct b43legacy_wl *wl,
- unsigned int new_mode)
-{
- struct b43legacy_wldev *uninitialized_var(up_dev);
- struct b43legacy_wldev *down_dev;
- int err;
- bool gmode = false;
- int prev_status;
-
- err = find_wldev_for_phymode(wl, new_mode, &up_dev, &gmode);
- if (err) {
- b43legacyerr(wl, "Could not find a device for %s-PHY mode\n",
- phymode_to_string(new_mode));
- return err;
- }
- if ((up_dev == wl->current_dev) &&
- (!!wl->current_dev->phy.gmode == !!gmode))
- /* This device is already running. */
- return 0;
- b43legacydbg(wl, "Reconfiguring PHYmode to %s-PHY\n",
- phymode_to_string(new_mode));
- down_dev = wl->current_dev;
-
- prev_status = b43legacy_status(down_dev);
- /* Shutdown the currently running core. */
- if (prev_status >= B43legacy_STAT_STARTED)
- b43legacy_wireless_core_stop(down_dev);
- if (prev_status >= B43legacy_STAT_INITIALIZED)
- b43legacy_wireless_core_exit(down_dev);
-
- if (down_dev != up_dev)
- /* We switch to a different core, so we put PHY into
- * RESET on the old core. */
- b43legacy_put_phy_into_reset(down_dev);
-
- /* Now start the new core. */
- up_dev->phy.gmode = gmode;
- if (prev_status >= B43legacy_STAT_INITIALIZED) {
- err = b43legacy_wireless_core_init(up_dev);
- if (err) {
- b43legacyerr(wl, "Fatal: Could not initialize device"
- " for newly selected %s-PHY mode\n",
- phymode_to_string(new_mode));
- goto init_failure;
- }
- }
- if (prev_status >= B43legacy_STAT_STARTED) {
- err = b43legacy_wireless_core_start(up_dev);
- if (err) {
- b43legacyerr(wl, "Fatal: Could not start device for "
- "newly selected %s-PHY mode\n",
- phymode_to_string(new_mode));
- b43legacy_wireless_core_exit(up_dev);
- goto init_failure;
- }
- }
- B43legacy_WARN_ON(b43legacy_status(up_dev) != prev_status);
-
- b43legacy_shm_write32(up_dev, B43legacy_SHM_SHARED, 0x003E, 0);
-
- wl->current_dev = up_dev;
-
- return 0;
-init_failure:
- /* Whoops, failed to init the new core. No core is operating now. */
- wl->current_dev = NULL;
- return err;
-}
-
-/* Write the short and long frame retry limit values. */
-static void b43legacy_set_retry_limits(struct b43legacy_wldev *dev,
- unsigned int short_retry,
- unsigned int long_retry)
-{
- /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing
- * the chip-internal counter. */
- short_retry = min(short_retry, (unsigned int)0xF);
- long_retry = min(long_retry, (unsigned int)0xF);
-
- b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0006, short_retry);
- b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0007, long_retry);
-}
-
-static int b43legacy_op_dev_config(struct ieee80211_hw *hw,
- u32 changed)
-{
- struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
- struct b43legacy_wldev *dev;
- struct b43legacy_phy *phy;
- struct ieee80211_conf *conf = &hw->conf;
- unsigned long flags;
- unsigned int new_phymode = 0xFFFF;
- int antenna_tx;
- int err = 0;
-
- antenna_tx = B43legacy_ANTENNA_DEFAULT;
-
- mutex_lock(&wl->mutex);
- dev = wl->current_dev;
- phy = &dev->phy;
-
- if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
- b43legacy_set_retry_limits(dev,
- conf->short_frame_max_tx_count,
- conf->long_frame_max_tx_count);
- changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS;
- if (!changed)
- goto out_unlock_mutex;
-
- /* Switch the PHY mode (if necessary). */
- switch (conf->chandef.chan->band) {
- case IEEE80211_BAND_2GHZ:
- if (phy->type == B43legacy_PHYTYPE_B)
- new_phymode = B43legacy_PHYMODE_B;
- else
- new_phymode = B43legacy_PHYMODE_G;
- break;
- default:
- B43legacy_WARN_ON(1);
- }
- err = b43legacy_switch_phymode(wl, new_phymode);
- if (err)
- goto out_unlock_mutex;
-
- /* Disable IRQs while reconfiguring the device.
- * This makes it possible to drop the spinlock throughout
- * the reconfiguration process. */
- spin_lock_irqsave(&wl->irq_lock, flags);
- if (b43legacy_status(dev) < B43legacy_STAT_STARTED) {
- spin_unlock_irqrestore(&wl->irq_lock, flags);
- goto out_unlock_mutex;
- }
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
- spin_unlock_irqrestore(&wl->irq_lock, flags);
- b43legacy_synchronize_irq(dev);
-
- /* Switch to the requested channel.
- * The firmware takes care of races with the TX handler. */
- if (conf->chandef.chan->hw_value != phy->channel)
- b43legacy_radio_selectchannel(dev, conf->chandef.chan->hw_value,
- 0);
-
- dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_MONITOR);
-
- /* Adjust the desired TX power level. */
- if (conf->power_level != 0) {
- if (conf->power_level != phy->power_level) {
- phy->power_level = conf->power_level;
- b43legacy_phy_xmitpower(dev);
- }
- }
-
- /* Antennas for RX and management frame TX. */
- b43legacy_mgmtframe_txantenna(dev, antenna_tx);
-
- if (wl->radio_enabled != phy->radio_on) {
- if (wl->radio_enabled) {
- b43legacy_radio_turn_on(dev);
- b43legacyinfo(dev->wl, "Radio turned on by software\n");
- if (!dev->radio_hw_enable)
- b43legacyinfo(dev->wl, "The hardware RF-kill"
- " button still turns the radio"
- " physically off. Press the"
- " button to turn it on.\n");
- } else {
- b43legacy_radio_turn_off(dev, 0);
- b43legacyinfo(dev->wl, "Radio turned off by"
- " software\n");
- }
- }
-
- spin_lock_irqsave(&wl->irq_lock, flags);
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask);
- mmiowb();
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-out_unlock_mutex:
- mutex_unlock(&wl->mutex);
-
- return err;
-}
-
-static void b43legacy_update_basic_rates(struct b43legacy_wldev *dev, u32 brates)
-{
- struct ieee80211_supported_band *sband =
- dev->wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ];
- struct ieee80211_rate *rate;
- int i;
- u16 basic, direct, offset, basic_offset, rateptr;
-
- for (i = 0; i < sband->n_bitrates; i++) {
- rate = &sband->bitrates[i];
-
- if (b43legacy_is_cck_rate(rate->hw_value)) {
- direct = B43legacy_SHM_SH_CCKDIRECT;
- basic = B43legacy_SHM_SH_CCKBASIC;
- offset = b43legacy_plcp_get_ratecode_cck(rate->hw_value);
- offset &= 0xF;
- } else {
- direct = B43legacy_SHM_SH_OFDMDIRECT;
- basic = B43legacy_SHM_SH_OFDMBASIC;
- offset = b43legacy_plcp_get_ratecode_ofdm(rate->hw_value);
- offset &= 0xF;
- }
-
- rate = ieee80211_get_response_rate(sband, brates, rate->bitrate);
-
- if (b43legacy_is_cck_rate(rate->hw_value)) {
- basic_offset = b43legacy_plcp_get_ratecode_cck(rate->hw_value);
- basic_offset &= 0xF;
- } else {
- basic_offset = b43legacy_plcp_get_ratecode_ofdm(rate->hw_value);
- basic_offset &= 0xF;
- }
-
- /*
- * Get the pointer that we need to point to
- * from the direct map
- */
- rateptr = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- direct + 2 * basic_offset);
- /* and write it to the basic map */
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- basic + 2 * offset, rateptr);
- }
-}
-
-static void b43legacy_op_bss_info_changed(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_bss_conf *conf,
- u32 changed)
-{
- struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
- struct b43legacy_wldev *dev;
- unsigned long flags;
-
- mutex_lock(&wl->mutex);
- B43legacy_WARN_ON(wl->vif != vif);
-
- dev = wl->current_dev;
-
- /* Disable IRQs while reconfiguring the device.
- * This makes it possible to drop the spinlock throughout
- * the reconfiguration process. */
- spin_lock_irqsave(&wl->irq_lock, flags);
- if (b43legacy_status(dev) < B43legacy_STAT_STARTED) {
- spin_unlock_irqrestore(&wl->irq_lock, flags);
- goto out_unlock_mutex;
- }
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
-
- if (changed & BSS_CHANGED_BSSID) {
- b43legacy_synchronize_irq(dev);
-
- if (conf->bssid)
- memcpy(wl->bssid, conf->bssid, ETH_ALEN);
- else
- eth_zero_addr(wl->bssid);
- }
-
- if (b43legacy_status(dev) >= B43legacy_STAT_INITIALIZED) {
- if (changed & BSS_CHANGED_BEACON &&
- (b43legacy_is_mode(wl, NL80211_IFTYPE_AP) ||
- b43legacy_is_mode(wl, NL80211_IFTYPE_ADHOC)))
- b43legacy_update_templates(wl);
-
- if (changed & BSS_CHANGED_BSSID)
- b43legacy_write_mac_bssid_templates(dev);
- }
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-
- b43legacy_mac_suspend(dev);
-
- if (changed & BSS_CHANGED_BEACON_INT &&
- (b43legacy_is_mode(wl, NL80211_IFTYPE_AP) ||
- b43legacy_is_mode(wl, NL80211_IFTYPE_ADHOC)))
- b43legacy_set_beacon_int(dev, conf->beacon_int);
-
- if (changed & BSS_CHANGED_BASIC_RATES)
- b43legacy_update_basic_rates(dev, conf->basic_rates);
-
- if (changed & BSS_CHANGED_ERP_SLOT) {
- if (conf->use_short_slot)
- b43legacy_short_slot_timing_enable(dev);
- else
- b43legacy_short_slot_timing_disable(dev);
- }
-
- b43legacy_mac_enable(dev);
-
- spin_lock_irqsave(&wl->irq_lock, flags);
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask);
- /* XXX: why? */
- mmiowb();
- spin_unlock_irqrestore(&wl->irq_lock, flags);
- out_unlock_mutex:
- mutex_unlock(&wl->mutex);
-}
-
-static void b43legacy_op_configure_filter(struct ieee80211_hw *hw,
- unsigned int changed,
- unsigned int *fflags,u64 multicast)
-{
- struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
- struct b43legacy_wldev *dev = wl->current_dev;
- unsigned long flags;
-
- if (!dev) {
- *fflags = 0;
- return;
- }
-
- spin_lock_irqsave(&wl->irq_lock, flags);
- *fflags &= FIF_ALLMULTI |
- FIF_FCSFAIL |
- FIF_PLCPFAIL |
- FIF_CONTROL |
- FIF_OTHER_BSS |
- FIF_BCN_PRBRESP_PROMISC;
-
- changed &= FIF_ALLMULTI |
- FIF_FCSFAIL |
- FIF_PLCPFAIL |
- FIF_CONTROL |
- FIF_OTHER_BSS |
- FIF_BCN_PRBRESP_PROMISC;
-
- wl->filter_flags = *fflags;
-
- if (changed && b43legacy_status(dev) >= B43legacy_STAT_INITIALIZED)
- b43legacy_adjust_opmode(dev);
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-}
-
-/* Locking: wl->mutex */
-static void b43legacy_wireless_core_stop(struct b43legacy_wldev *dev)
-{
- struct b43legacy_wl *wl = dev->wl;
- unsigned long flags;
- int queue_num;
-
- if (b43legacy_status(dev) < B43legacy_STAT_STARTED)
- return;
-
- /* Disable and sync interrupts. We must do this before than
- * setting the status to INITIALIZED, as the interrupt handler
- * won't care about IRQs then. */
- spin_lock_irqsave(&wl->irq_lock, flags);
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
- b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_MASK); /* flush */
- spin_unlock_irqrestore(&wl->irq_lock, flags);
- b43legacy_synchronize_irq(dev);
-
- b43legacy_set_status(dev, B43legacy_STAT_INITIALIZED);
-
- mutex_unlock(&wl->mutex);
- /* Must unlock as it would otherwise deadlock. No races here.
- * Cancel the possibly running self-rearming periodic work. */
- cancel_delayed_work_sync(&dev->periodic_work);
- cancel_work_sync(&wl->tx_work);
- mutex_lock(&wl->mutex);
-
- /* Drain all TX queues. */
- for (queue_num = 0; queue_num < B43legacy_QOS_QUEUE_NUM; queue_num++) {
- while (skb_queue_len(&wl->tx_queue[queue_num]))
- dev_kfree_skb(skb_dequeue(&wl->tx_queue[queue_num]));
- }
-
-b43legacy_mac_suspend(dev);
- free_irq(dev->dev->irq, dev);
- b43legacydbg(wl, "Wireless interface stopped\n");
-}
-
-/* Locking: wl->mutex */
-static int b43legacy_wireless_core_start(struct b43legacy_wldev *dev)
-{
- int err;
-
- B43legacy_WARN_ON(b43legacy_status(dev) != B43legacy_STAT_INITIALIZED);
-
- drain_txstatus_queue(dev);
- err = request_irq(dev->dev->irq, b43legacy_interrupt_handler,
- IRQF_SHARED, KBUILD_MODNAME, dev);
- if (err) {
- b43legacyerr(dev->wl, "Cannot request IRQ-%d\n",
- dev->dev->irq);
- goto out;
- }
- /* We are ready to run. */
- ieee80211_wake_queues(dev->wl->hw);
- b43legacy_set_status(dev, B43legacy_STAT_STARTED);
-
- /* Start data flow (TX/RX) */
- b43legacy_mac_enable(dev);
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask);
-
- /* Start maintenance work */
- b43legacy_periodic_tasks_setup(dev);
-
- b43legacydbg(dev->wl, "Wireless interface started\n");
-out:
- return err;
-}
-
-/* Get PHY and RADIO versioning numbers */
-static int b43legacy_phy_versioning(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u32 tmp;
- u8 analog_type;
- u8 phy_type;
- u8 phy_rev;
- u16 radio_manuf;
- u16 radio_ver;
- u16 radio_rev;
- int unsupported = 0;
-
- /* Get PHY versioning */
- tmp = b43legacy_read16(dev, B43legacy_MMIO_PHY_VER);
- analog_type = (tmp & B43legacy_PHYVER_ANALOG)
- >> B43legacy_PHYVER_ANALOG_SHIFT;
- phy_type = (tmp & B43legacy_PHYVER_TYPE) >> B43legacy_PHYVER_TYPE_SHIFT;
- phy_rev = (tmp & B43legacy_PHYVER_VERSION);
- switch (phy_type) {
- case B43legacy_PHYTYPE_B:
- if (phy_rev != 2 && phy_rev != 4
- && phy_rev != 6 && phy_rev != 7)
- unsupported = 1;
- break;
- case B43legacy_PHYTYPE_G:
- if (phy_rev > 8)
- unsupported = 1;
- break;
- default:
- unsupported = 1;
- }
- if (unsupported) {
- b43legacyerr(dev->wl, "FOUND UNSUPPORTED PHY "
- "(Analog %u, Type %u, Revision %u)\n",
- analog_type, phy_type, phy_rev);
- return -EOPNOTSUPP;
- }
- b43legacydbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n",
- analog_type, phy_type, phy_rev);
-
-
- /* Get RADIO versioning */
- if (dev->dev->bus->chip_id == 0x4317) {
- if (dev->dev->bus->chip_rev == 0)
- tmp = 0x3205017F;
- else if (dev->dev->bus->chip_rev == 1)
- tmp = 0x4205017F;
- else
- tmp = 0x5205017F;
- } else {
- b43legacy_write16(dev, B43legacy_MMIO_RADIO_CONTROL,
- B43legacy_RADIOCTL_ID);
- tmp = b43legacy_read16(dev, B43legacy_MMIO_RADIO_DATA_HIGH);
- tmp <<= 16;
- b43legacy_write16(dev, B43legacy_MMIO_RADIO_CONTROL,
- B43legacy_RADIOCTL_ID);
- tmp |= b43legacy_read16(dev, B43legacy_MMIO_RADIO_DATA_LOW);
- }
- radio_manuf = (tmp & 0x00000FFF);
- radio_ver = (tmp & 0x0FFFF000) >> 12;
- radio_rev = (tmp & 0xF0000000) >> 28;
- switch (phy_type) {
- case B43legacy_PHYTYPE_B:
- if ((radio_ver & 0xFFF0) != 0x2050)
- unsupported = 1;
- break;
- case B43legacy_PHYTYPE_G:
- if (radio_ver != 0x2050)
- unsupported = 1;
- break;
- default:
- B43legacy_BUG_ON(1);
- }
- if (unsupported) {
- b43legacyerr(dev->wl, "FOUND UNSUPPORTED RADIO "
- "(Manuf 0x%X, Version 0x%X, Revision %u)\n",
- radio_manuf, radio_ver, radio_rev);
- return -EOPNOTSUPP;
- }
- b43legacydbg(dev->wl, "Found Radio: Manuf 0x%X, Version 0x%X,"
- " Revision %u\n", radio_manuf, radio_ver, radio_rev);
-
-
- phy->radio_manuf = radio_manuf;
- phy->radio_ver = radio_ver;
- phy->radio_rev = radio_rev;
-
- phy->analog = analog_type;
- phy->type = phy_type;
- phy->rev = phy_rev;
-
- return 0;
-}
-
-static void setup_struct_phy_for_init(struct b43legacy_wldev *dev,
- struct b43legacy_phy *phy)
-{
- struct b43legacy_lopair *lo;
- int i;
-
- memset(phy->minlowsig, 0xFF, sizeof(phy->minlowsig));
- memset(phy->minlowsigpos, 0, sizeof(phy->minlowsigpos));
-
- /* Assume the radio is enabled. If it's not enabled, the state will
- * immediately get fixed on the first periodic work run. */
- dev->radio_hw_enable = true;
-
- phy->savedpctlreg = 0xFFFF;
- phy->aci_enable = false;
- phy->aci_wlan_automatic = false;
- phy->aci_hw_rssi = false;
-
- lo = phy->_lo_pairs;
- if (lo)
- memset(lo, 0, sizeof(struct b43legacy_lopair) *
- B43legacy_LO_COUNT);
- phy->max_lb_gain = 0;
- phy->trsw_rx_gain = 0;
-
- /* Set default attenuation values. */
- phy->bbatt = b43legacy_default_baseband_attenuation(dev);
- phy->rfatt = b43legacy_default_radio_attenuation(dev);
- phy->txctl1 = b43legacy_default_txctl1(dev);
- phy->txpwr_offset = 0;
-
- /* NRSSI */
- phy->nrssislope = 0;
- for (i = 0; i < ARRAY_SIZE(phy->nrssi); i++)
- phy->nrssi[i] = -1000;
- for (i = 0; i < ARRAY_SIZE(phy->nrssi_lt); i++)
- phy->nrssi_lt[i] = i;
-
- phy->lofcal = 0xFFFF;
- phy->initval = 0xFFFF;
-
- phy->interfmode = B43legacy_INTERFMODE_NONE;
- phy->channel = 0xFF;
-}
-
-static void setup_struct_wldev_for_init(struct b43legacy_wldev *dev)
-{
- /* Flags */
- dev->dfq_valid = false;
-
- /* Stats */
- memset(&dev->stats, 0, sizeof(dev->stats));
-
- setup_struct_phy_for_init(dev, &dev->phy);
-
- /* IRQ related flags */
- dev->irq_reason = 0;
- memset(dev->dma_reason, 0, sizeof(dev->dma_reason));
- dev->irq_mask = B43legacy_IRQ_MASKTEMPLATE;
-
- dev->mac_suspended = 1;
-
- /* Noise calculation context */
- memset(&dev->noisecalc, 0, sizeof(dev->noisecalc));
-}
-
-static void b43legacy_set_synth_pu_delay(struct b43legacy_wldev *dev,
- bool idle) {
- u16 pu_delay = 1050;
-
- if (b43legacy_is_mode(dev->wl, NL80211_IFTYPE_ADHOC) || idle)
- pu_delay = 500;
- if ((dev->phy.radio_ver == 0x2050) && (dev->phy.radio_rev == 8))
- pu_delay = max(pu_delay, (u16)2400);
-
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_SPUWKUP, pu_delay);
-}
-
-/* Set the TSF CFP pre-TargetBeaconTransmissionTime. */
-static void b43legacy_set_pretbtt(struct b43legacy_wldev *dev)
-{
- u16 pretbtt;
-
- /* The time value is in microseconds. */
- if (b43legacy_is_mode(dev->wl, NL80211_IFTYPE_ADHOC))
- pretbtt = 2;
- else
- pretbtt = 250;
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_PRETBTT, pretbtt);
- b43legacy_write16(dev, B43legacy_MMIO_TSF_CFP_PRETBTT, pretbtt);
-}
-
-/* Shutdown a wireless core */
-/* Locking: wl->mutex */
-static void b43legacy_wireless_core_exit(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u32 macctl;
-
- B43legacy_WARN_ON(b43legacy_status(dev) > B43legacy_STAT_INITIALIZED);
- if (b43legacy_status(dev) != B43legacy_STAT_INITIALIZED)
- return;
- b43legacy_set_status(dev, B43legacy_STAT_UNINIT);
-
- /* Stop the microcode PSM. */
- macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- macctl &= ~B43legacy_MACCTL_PSM_RUN;
- macctl |= B43legacy_MACCTL_PSM_JMP0;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
-
- b43legacy_leds_exit(dev);
- b43legacy_rng_exit(dev->wl);
- b43legacy_pio_free(dev);
- b43legacy_dma_free(dev);
- b43legacy_chip_exit(dev);
- b43legacy_radio_turn_off(dev, 1);
- b43legacy_switch_analog(dev, 0);
- if (phy->dyn_tssi_tbl)
- kfree(phy->tssi2dbm);
- kfree(phy->lo_control);
- phy->lo_control = NULL;
- if (dev->wl->current_beacon) {
- dev_kfree_skb_any(dev->wl->current_beacon);
- dev->wl->current_beacon = NULL;
- }
-
- ssb_device_disable(dev->dev, 0);
- ssb_bus_may_powerdown(dev->dev->bus);
-}
-
-static void prepare_phy_data_for_init(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- int i;
-
- /* Set default attenuation values. */
- phy->bbatt = b43legacy_default_baseband_attenuation(dev);
- phy->rfatt = b43legacy_default_radio_attenuation(dev);
- phy->txctl1 = b43legacy_default_txctl1(dev);
- phy->txctl2 = 0xFFFF;
- phy->txpwr_offset = 0;
-
- /* NRSSI */
- phy->nrssislope = 0;
- for (i = 0; i < ARRAY_SIZE(phy->nrssi); i++)
- phy->nrssi[i] = -1000;
- for (i = 0; i < ARRAY_SIZE(phy->nrssi_lt); i++)
- phy->nrssi_lt[i] = i;
-
- phy->lofcal = 0xFFFF;
- phy->initval = 0xFFFF;
-
- phy->aci_enable = false;
- phy->aci_wlan_automatic = false;
- phy->aci_hw_rssi = false;
-
- phy->antenna_diversity = 0xFFFF;
- memset(phy->minlowsig, 0xFF, sizeof(phy->minlowsig));
- memset(phy->minlowsigpos, 0, sizeof(phy->minlowsigpos));
-
- /* Flags */
- phy->calibrated = 0;
-
- if (phy->_lo_pairs)
- memset(phy->_lo_pairs, 0,
- sizeof(struct b43legacy_lopair) * B43legacy_LO_COUNT);
- memset(phy->loopback_gain, 0, sizeof(phy->loopback_gain));
-}
-
-/* Initialize a wireless core */
-static int b43legacy_wireless_core_init(struct b43legacy_wldev *dev)
-{
- struct b43legacy_wl *wl = dev->wl;
- struct ssb_bus *bus = dev->dev->bus;
- struct b43legacy_phy *phy = &dev->phy;
- struct ssb_sprom *sprom = &dev->dev->bus->sprom;
- int err;
- u32 hf;
- u32 tmp;
-
- B43legacy_WARN_ON(b43legacy_status(dev) != B43legacy_STAT_UNINIT);
-
- err = ssb_bus_powerup(bus, 0);
- if (err)
- goto out;
- if (!ssb_device_is_enabled(dev->dev)) {
- tmp = phy->gmode ? B43legacy_TMSLOW_GMODE : 0;
- b43legacy_wireless_core_reset(dev, tmp);
- }
-
- if ((phy->type == B43legacy_PHYTYPE_B) ||
- (phy->type == B43legacy_PHYTYPE_G)) {
- phy->_lo_pairs = kzalloc(sizeof(struct b43legacy_lopair)
- * B43legacy_LO_COUNT,
- GFP_KERNEL);
- if (!phy->_lo_pairs)
- return -ENOMEM;
- }
- setup_struct_wldev_for_init(dev);
-
- err = b43legacy_phy_init_tssi2dbm_table(dev);
- if (err)
- goto err_kfree_lo_control;
-
- /* Enable IRQ routing to this device. */
- ssb_pcicore_dev_irqvecs_enable(&bus->pcicore, dev->dev);
-
- prepare_phy_data_for_init(dev);
- b43legacy_phy_calibrate(dev);
- err = b43legacy_chip_init(dev);
- if (err)
- goto err_kfree_tssitbl;
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_WLCOREREV,
- dev->dev->id.revision);
- hf = b43legacy_hf_read(dev);
- if (phy->type == B43legacy_PHYTYPE_G) {
- hf |= B43legacy_HF_SYMW;
- if (phy->rev == 1)
- hf |= B43legacy_HF_GDCW;
- if (sprom->boardflags_lo & B43legacy_BFL_PACTRL)
- hf |= B43legacy_HF_OFDMPABOOST;
- } else if (phy->type == B43legacy_PHYTYPE_B) {
- hf |= B43legacy_HF_SYMW;
- if (phy->rev >= 2 && phy->radio_ver == 0x2050)
- hf &= ~B43legacy_HF_GDCW;
- }
- b43legacy_hf_write(dev, hf);
-
- b43legacy_set_retry_limits(dev,
- B43legacy_DEFAULT_SHORT_RETRY_LIMIT,
- B43legacy_DEFAULT_LONG_RETRY_LIMIT);
-
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- 0x0044, 3);
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- 0x0046, 2);
-
- /* Disable sending probe responses from firmware.
- * Setting the MaxTime to one usec will always trigger
- * a timeout, so we never send any probe resp.
- * A timeout of zero is infinite. */
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_PRMAXTIME, 1);
-
- b43legacy_rate_memory_init(dev);
-
- /* Minimum Contention Window */
- if (phy->type == B43legacy_PHYTYPE_B)
- b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS,
- 0x0003, 31);
- else
- b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS,
- 0x0003, 15);
- /* Maximum Contention Window */
- b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS,
- 0x0004, 1023);
-
- do {
- if (b43legacy_using_pio(dev))
- err = b43legacy_pio_init(dev);
- else {
- err = b43legacy_dma_init(dev);
- if (!err)
- b43legacy_qos_init(dev);
- }
- } while (err == -EAGAIN);
- if (err)
- goto err_chip_exit;
-
- b43legacy_set_synth_pu_delay(dev, 1);
-
- ssb_bus_powerup(bus, 1); /* Enable dynamic PCTL */
- b43legacy_upload_card_macaddress(dev);
- b43legacy_security_init(dev);
- b43legacy_rng_init(wl);
-
- ieee80211_wake_queues(dev->wl->hw);
- b43legacy_set_status(dev, B43legacy_STAT_INITIALIZED);
-
- b43legacy_leds_init(dev);
-out:
- return err;
-
-err_chip_exit:
- b43legacy_chip_exit(dev);
-err_kfree_tssitbl:
- if (phy->dyn_tssi_tbl)
- kfree(phy->tssi2dbm);
-err_kfree_lo_control:
- kfree(phy->lo_control);
- phy->lo_control = NULL;
- ssb_bus_may_powerdown(bus);
- B43legacy_WARN_ON(b43legacy_status(dev) != B43legacy_STAT_UNINIT);
- return err;
-}
-
-static int b43legacy_op_add_interface(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif)
-{
- struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
- struct b43legacy_wldev *dev;
- unsigned long flags;
- int err = -EOPNOTSUPP;
-
- /* TODO: allow WDS/AP devices to coexist */
-
- if (vif->type != NL80211_IFTYPE_AP &&
- vif->type != NL80211_IFTYPE_STATION &&
- vif->type != NL80211_IFTYPE_WDS &&
- vif->type != NL80211_IFTYPE_ADHOC)
- return -EOPNOTSUPP;
-
- mutex_lock(&wl->mutex);
- if (wl->operating)
- goto out_mutex_unlock;
-
- b43legacydbg(wl, "Adding Interface type %d\n", vif->type);
-
- dev = wl->current_dev;
- wl->operating = true;
- wl->vif = vif;
- wl->if_type = vif->type;
- memcpy(wl->mac_addr, vif->addr, ETH_ALEN);
-
- spin_lock_irqsave(&wl->irq_lock, flags);
- b43legacy_adjust_opmode(dev);
- b43legacy_set_pretbtt(dev);
- b43legacy_set_synth_pu_delay(dev, 0);
- b43legacy_upload_card_macaddress(dev);
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-
- err = 0;
- out_mutex_unlock:
- mutex_unlock(&wl->mutex);
-
- return err;
-}
-
-static void b43legacy_op_remove_interface(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif)
-{
- struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
- struct b43legacy_wldev *dev = wl->current_dev;
- unsigned long flags;
-
- b43legacydbg(wl, "Removing Interface type %d\n", vif->type);
-
- mutex_lock(&wl->mutex);
-
- B43legacy_WARN_ON(!wl->operating);
- B43legacy_WARN_ON(wl->vif != vif);
- wl->vif = NULL;
-
- wl->operating = false;
-
- spin_lock_irqsave(&wl->irq_lock, flags);
- b43legacy_adjust_opmode(dev);
- eth_zero_addr(wl->mac_addr);
- b43legacy_upload_card_macaddress(dev);
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-
- mutex_unlock(&wl->mutex);
-}
-
-static int b43legacy_op_start(struct ieee80211_hw *hw)
-{
- struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
- struct b43legacy_wldev *dev = wl->current_dev;
- int did_init = 0;
- int err = 0;
-
- /* Kill all old instance specific information to make sure
- * the card won't use it in the short timeframe between start
- * and mac80211 reconfiguring it. */
- eth_zero_addr(wl->bssid);
- eth_zero_addr(wl->mac_addr);
- wl->filter_flags = 0;
- wl->beacon0_uploaded = false;
- wl->beacon1_uploaded = false;
- wl->beacon_templates_virgin = true;
- wl->radio_enabled = true;
-
- mutex_lock(&wl->mutex);
-
- if (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED) {
- err = b43legacy_wireless_core_init(dev);
- if (err)
- goto out_mutex_unlock;
- did_init = 1;
- }
-
- if (b43legacy_status(dev) < B43legacy_STAT_STARTED) {
- err = b43legacy_wireless_core_start(dev);
- if (err) {
- if (did_init)
- b43legacy_wireless_core_exit(dev);
- goto out_mutex_unlock;
- }
- }
-
- wiphy_rfkill_start_polling(hw->wiphy);
-
-out_mutex_unlock:
- mutex_unlock(&wl->mutex);
-
- return err;
-}
-
-static void b43legacy_op_stop(struct ieee80211_hw *hw)
-{
- struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
- struct b43legacy_wldev *dev = wl->current_dev;
-
- cancel_work_sync(&(wl->beacon_update_trigger));
-
- mutex_lock(&wl->mutex);
- if (b43legacy_status(dev) >= B43legacy_STAT_STARTED)
- b43legacy_wireless_core_stop(dev);
- b43legacy_wireless_core_exit(dev);
- wl->radio_enabled = false;
- mutex_unlock(&wl->mutex);
-}
-
-static int b43legacy_op_beacon_set_tim(struct ieee80211_hw *hw,
- struct ieee80211_sta *sta, bool set)
-{
- struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
- unsigned long flags;
-
- spin_lock_irqsave(&wl->irq_lock, flags);
- b43legacy_update_templates(wl);
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-
- return 0;
-}
-
-static int b43legacy_op_get_survey(struct ieee80211_hw *hw, int idx,
- struct survey_info *survey)
-{
- struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
- struct b43legacy_wldev *dev = wl->current_dev;
- struct ieee80211_conf *conf = &hw->conf;
-
- if (idx != 0)
- return -ENOENT;
-
- survey->channel = conf->chandef.chan;
- survey->filled = SURVEY_INFO_NOISE_DBM;
- survey->noise = dev->stats.link_noise;
-
- return 0;
-}
-
-static const struct ieee80211_ops b43legacy_hw_ops = {
- .tx = b43legacy_op_tx,
- .conf_tx = b43legacy_op_conf_tx,
- .add_interface = b43legacy_op_add_interface,
- .remove_interface = b43legacy_op_remove_interface,
- .config = b43legacy_op_dev_config,
- .bss_info_changed = b43legacy_op_bss_info_changed,
- .configure_filter = b43legacy_op_configure_filter,
- .get_stats = b43legacy_op_get_stats,
- .start = b43legacy_op_start,
- .stop = b43legacy_op_stop,
- .set_tim = b43legacy_op_beacon_set_tim,
- .get_survey = b43legacy_op_get_survey,
- .rfkill_poll = b43legacy_rfkill_poll,
-};
-
-/* Hard-reset the chip. Do not call this directly.
- * Use b43legacy_controller_restart()
- */
-static void b43legacy_chip_reset(struct work_struct *work)
-{
- struct b43legacy_wldev *dev =
- container_of(work, struct b43legacy_wldev, restart_work);
- struct b43legacy_wl *wl = dev->wl;
- int err = 0;
- int prev_status;
-
- mutex_lock(&wl->mutex);
-
- prev_status = b43legacy_status(dev);
- /* Bring the device down... */
- if (prev_status >= B43legacy_STAT_STARTED)
- b43legacy_wireless_core_stop(dev);
- if (prev_status >= B43legacy_STAT_INITIALIZED)
- b43legacy_wireless_core_exit(dev);
-
- /* ...and up again. */
- if (prev_status >= B43legacy_STAT_INITIALIZED) {
- err = b43legacy_wireless_core_init(dev);
- if (err)
- goto out;
- }
- if (prev_status >= B43legacy_STAT_STARTED) {
- err = b43legacy_wireless_core_start(dev);
- if (err) {
- b43legacy_wireless_core_exit(dev);
- goto out;
- }
- }
-out:
- if (err)
- wl->current_dev = NULL; /* Failed to init the dev. */
- mutex_unlock(&wl->mutex);
- if (err)
- b43legacyerr(wl, "Controller restart FAILED\n");
- else
- b43legacyinfo(wl, "Controller restarted\n");
-}
-
-static int b43legacy_setup_modes(struct b43legacy_wldev *dev,
- int have_bphy,
- int have_gphy)
-{
- struct ieee80211_hw *hw = dev->wl->hw;
- struct b43legacy_phy *phy = &dev->phy;
-
- phy->possible_phymodes = 0;
- if (have_bphy) {
- hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
- &b43legacy_band_2GHz_BPHY;
- phy->possible_phymodes |= B43legacy_PHYMODE_B;
- }
-
- if (have_gphy) {
- hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
- &b43legacy_band_2GHz_GPHY;
- phy->possible_phymodes |= B43legacy_PHYMODE_G;
- }
-
- return 0;
-}
-
-static void b43legacy_wireless_core_detach(struct b43legacy_wldev *dev)
-{
- /* We release firmware that late to not be required to re-request
- * is all the time when we reinit the core. */
- b43legacy_release_firmware(dev);
-}
-
-static int b43legacy_wireless_core_attach(struct b43legacy_wldev *dev)
-{
- struct b43legacy_wl *wl = dev->wl;
- struct ssb_bus *bus = dev->dev->bus;
- struct pci_dev *pdev = (bus->bustype == SSB_BUSTYPE_PCI) ? bus->host_pci : NULL;
- int err;
- int have_bphy = 0;
- int have_gphy = 0;
- u32 tmp;
-
- /* Do NOT do any device initialization here.
- * Do it in wireless_core_init() instead.
- * This function is for gathering basic information about the HW, only.
- * Also some structs may be set up here. But most likely you want to
- * have that in core_init(), too.
- */
-
- err = ssb_bus_powerup(bus, 0);
- if (err) {
- b43legacyerr(wl, "Bus powerup failed\n");
- goto out;
- }
- /* Get the PHY type. */
- if (dev->dev->id.revision >= 5) {
- u32 tmshigh;
-
- tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH);
- have_gphy = !!(tmshigh & B43legacy_TMSHIGH_GPHY);
- if (!have_gphy)
- have_bphy = 1;
- } else if (dev->dev->id.revision == 4)
- have_gphy = 1;
- else
- have_bphy = 1;
-
- dev->phy.gmode = (have_gphy || have_bphy);
- dev->phy.radio_on = true;
- tmp = dev->phy.gmode ? B43legacy_TMSLOW_GMODE : 0;
- b43legacy_wireless_core_reset(dev, tmp);
-
- err = b43legacy_phy_versioning(dev);
- if (err)
- goto err_powerdown;
- /* Check if this device supports multiband. */
- if (!pdev ||
- (pdev->device != 0x4312 &&
- pdev->device != 0x4319 &&
- pdev->device != 0x4324)) {
- /* No multiband support. */
- have_bphy = 0;
- have_gphy = 0;
- switch (dev->phy.type) {
- case B43legacy_PHYTYPE_B:
- have_bphy = 1;
- break;
- case B43legacy_PHYTYPE_G:
- have_gphy = 1;
- break;
- default:
- B43legacy_BUG_ON(1);
- }
- }
- dev->phy.gmode = (have_gphy || have_bphy);
- tmp = dev->phy.gmode ? B43legacy_TMSLOW_GMODE : 0;
- b43legacy_wireless_core_reset(dev, tmp);
-
- err = b43legacy_validate_chipaccess(dev);
- if (err)
- goto err_powerdown;
- err = b43legacy_setup_modes(dev, have_bphy, have_gphy);
- if (err)
- goto err_powerdown;
-
- /* Now set some default "current_dev" */
- if (!wl->current_dev)
- wl->current_dev = dev;
- INIT_WORK(&dev->restart_work, b43legacy_chip_reset);
-
- b43legacy_radio_turn_off(dev, 1);
- b43legacy_switch_analog(dev, 0);
- ssb_device_disable(dev->dev, 0);
- ssb_bus_may_powerdown(bus);
-
-out:
- return err;
-
-err_powerdown:
- ssb_bus_may_powerdown(bus);
- return err;
-}
-
-static void b43legacy_one_core_detach(struct ssb_device *dev)
-{
- struct b43legacy_wldev *wldev;
- struct b43legacy_wl *wl;
-
- /* Do not cancel ieee80211-workqueue based work here.
- * See comment in b43legacy_remove(). */
-
- wldev = ssb_get_drvdata(dev);
- wl = wldev->wl;
- b43legacy_debugfs_remove_device(wldev);
- b43legacy_wireless_core_detach(wldev);
- list_del(&wldev->list);
- wl->nr_devs--;
- ssb_set_drvdata(dev, NULL);
- kfree(wldev);
-}
-
-static int b43legacy_one_core_attach(struct ssb_device *dev,
- struct b43legacy_wl *wl)
-{
- struct b43legacy_wldev *wldev;
- int err = -ENOMEM;
-
- wldev = kzalloc(sizeof(*wldev), GFP_KERNEL);
- if (!wldev)
- goto out;
-
- wldev->dev = dev;
- wldev->wl = wl;
- b43legacy_set_status(wldev, B43legacy_STAT_UNINIT);
- wldev->bad_frames_preempt = modparam_bad_frames_preempt;
- tasklet_init(&wldev->isr_tasklet,
- (void (*)(unsigned long))b43legacy_interrupt_tasklet,
- (unsigned long)wldev);
- if (modparam_pio)
- wldev->__using_pio = true;
- INIT_LIST_HEAD(&wldev->list);
-
- err = b43legacy_wireless_core_attach(wldev);
- if (err)
- goto err_kfree_wldev;
-
- list_add(&wldev->list, &wl->devlist);
- wl->nr_devs++;
- ssb_set_drvdata(dev, wldev);
- b43legacy_debugfs_add_device(wldev);
-out:
- return err;
-
-err_kfree_wldev:
- kfree(wldev);
- return err;
-}
-
-static void b43legacy_sprom_fixup(struct ssb_bus *bus)
-{
- /* boardflags workarounds */
- if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE &&
- bus->boardinfo.type == 0x4E &&
- bus->sprom.board_rev > 0x40)
- bus->sprom.boardflags_lo |= B43legacy_BFL_PACTRL;
-}
-
-static void b43legacy_wireless_exit(struct ssb_device *dev,
- struct b43legacy_wl *wl)
-{
- struct ieee80211_hw *hw = wl->hw;
-
- ssb_set_devtypedata(dev, NULL);
- ieee80211_free_hw(hw);
-}
-
-static int b43legacy_wireless_init(struct ssb_device *dev)
-{
- struct ssb_sprom *sprom = &dev->bus->sprom;
- struct ieee80211_hw *hw;
- struct b43legacy_wl *wl;
- int err = -ENOMEM;
- int queue_num;
-
- b43legacy_sprom_fixup(dev->bus);
-
- hw = ieee80211_alloc_hw(sizeof(*wl), &b43legacy_hw_ops);
- if (!hw) {
- b43legacyerr(NULL, "Could not allocate ieee80211 device\n");
- goto out;
- }
-
- /* fill hw info */
- ieee80211_hw_set(hw, RX_INCLUDES_FCS);
- ieee80211_hw_set(hw, SIGNAL_DBM);
-
- hw->wiphy->interface_modes =
- BIT(NL80211_IFTYPE_AP) |
- BIT(NL80211_IFTYPE_STATION) |
- BIT(NL80211_IFTYPE_WDS) |
- BIT(NL80211_IFTYPE_ADHOC);
- hw->queues = 1; /* FIXME: hardware has more queues */
- hw->max_rates = 2;
- SET_IEEE80211_DEV(hw, dev->dev);
- if (is_valid_ether_addr(sprom->et1mac))
- SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac);
- else
- SET_IEEE80211_PERM_ADDR(hw, sprom->il0mac);
-
- /* Get and initialize struct b43legacy_wl */
- wl = hw_to_b43legacy_wl(hw);
- memset(wl, 0, sizeof(*wl));
- wl->hw = hw;
- spin_lock_init(&wl->irq_lock);
- spin_lock_init(&wl->leds_lock);
- mutex_init(&wl->mutex);
- INIT_LIST_HEAD(&wl->devlist);
- INIT_WORK(&wl->beacon_update_trigger, b43legacy_beacon_update_trigger_work);
- INIT_WORK(&wl->tx_work, b43legacy_tx_work);
-
- /* Initialize queues and flags. */
- for (queue_num = 0; queue_num < B43legacy_QOS_QUEUE_NUM; queue_num++) {
- skb_queue_head_init(&wl->tx_queue[queue_num]);
- wl->tx_queue_stopped[queue_num] = 0;
- }
-
- ssb_set_devtypedata(dev, wl);
- b43legacyinfo(wl, "Broadcom %04X WLAN found (core revision %u)\n",
- dev->bus->chip_id, dev->id.revision);
- err = 0;
-out:
- return err;
-}
-
-static int b43legacy_probe(struct ssb_device *dev,
- const struct ssb_device_id *id)
-{
- struct b43legacy_wl *wl;
- int err;
- int first = 0;
-
- wl = ssb_get_devtypedata(dev);
- if (!wl) {
- /* Probing the first core - setup common struct b43legacy_wl */
- first = 1;
- err = b43legacy_wireless_init(dev);
- if (err)
- goto out;
- wl = ssb_get_devtypedata(dev);
- B43legacy_WARN_ON(!wl);
- }
- err = b43legacy_one_core_attach(dev, wl);
- if (err)
- goto err_wireless_exit;
-
- /* setup and start work to load firmware */
- INIT_WORK(&wl->firmware_load, b43legacy_request_firmware);
- schedule_work(&wl->firmware_load);
-
-out:
- return err;
-
-err_wireless_exit:
- if (first)
- b43legacy_wireless_exit(dev, wl);
- return err;
-}
-
-static void b43legacy_remove(struct ssb_device *dev)
-{
- struct b43legacy_wl *wl = ssb_get_devtypedata(dev);
- struct b43legacy_wldev *wldev = ssb_get_drvdata(dev);
-
- /* We must cancel any work here before unregistering from ieee80211,
- * as the ieee80211 unreg will destroy the workqueue. */
- cancel_work_sync(&wldev->restart_work);
- cancel_work_sync(&wl->firmware_load);
- complete(&wldev->fw_load_complete);
-
- B43legacy_WARN_ON(!wl);
- if (!wldev->fw.ucode)
- return; /* NULL if fw never loaded */
- if (wl->current_dev == wldev)
- ieee80211_unregister_hw(wl->hw);
-
- b43legacy_one_core_detach(dev);
-
- if (list_empty(&wl->devlist))
- /* Last core on the chip unregistered.
- * We can destroy common struct b43legacy_wl.
- */
- b43legacy_wireless_exit(dev, wl);
-}
-
-/* Perform a hardware reset. This can be called from any context. */
-void b43legacy_controller_restart(struct b43legacy_wldev *dev,
- const char *reason)
-{
- /* Must avoid requeueing, if we are in shutdown. */
- if (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED)
- return;
- b43legacyinfo(dev->wl, "Controller RESET (%s) ...\n", reason);
- ieee80211_queue_work(dev->wl->hw, &dev->restart_work);
-}
-
-#ifdef CONFIG_PM
-
-static int b43legacy_suspend(struct ssb_device *dev, pm_message_t state)
-{
- struct b43legacy_wldev *wldev = ssb_get_drvdata(dev);
- struct b43legacy_wl *wl = wldev->wl;
-
- b43legacydbg(wl, "Suspending...\n");
-
- mutex_lock(&wl->mutex);
- wldev->suspend_init_status = b43legacy_status(wldev);
- if (wldev->suspend_init_status >= B43legacy_STAT_STARTED)
- b43legacy_wireless_core_stop(wldev);
- if (wldev->suspend_init_status >= B43legacy_STAT_INITIALIZED)
- b43legacy_wireless_core_exit(wldev);
- mutex_unlock(&wl->mutex);
-
- b43legacydbg(wl, "Device suspended.\n");
-
- return 0;
-}
-
-static int b43legacy_resume(struct ssb_device *dev)
-{
- struct b43legacy_wldev *wldev = ssb_get_drvdata(dev);
- struct b43legacy_wl *wl = wldev->wl;
- int err = 0;
-
- b43legacydbg(wl, "Resuming...\n");
-
- mutex_lock(&wl->mutex);
- if (wldev->suspend_init_status >= B43legacy_STAT_INITIALIZED) {
- err = b43legacy_wireless_core_init(wldev);
- if (err) {
- b43legacyerr(wl, "Resume failed at core init\n");
- goto out;
- }
- }
- if (wldev->suspend_init_status >= B43legacy_STAT_STARTED) {
- err = b43legacy_wireless_core_start(wldev);
- if (err) {
- b43legacy_wireless_core_exit(wldev);
- b43legacyerr(wl, "Resume failed at core start\n");
- goto out;
- }
- }
-
- b43legacydbg(wl, "Device resumed.\n");
-out:
- mutex_unlock(&wl->mutex);
- return err;
-}
-
-#else /* CONFIG_PM */
-# define b43legacy_suspend NULL
-# define b43legacy_resume NULL
-#endif /* CONFIG_PM */
-
-static struct ssb_driver b43legacy_ssb_driver = {
- .name = KBUILD_MODNAME,
- .id_table = b43legacy_ssb_tbl,
- .probe = b43legacy_probe,
- .remove = b43legacy_remove,
- .suspend = b43legacy_suspend,
- .resume = b43legacy_resume,
-};
-
-static void b43legacy_print_driverinfo(void)
-{
- const char *feat_pci = "", *feat_leds = "",
- *feat_pio = "", *feat_dma = "";
-
-#ifdef CONFIG_B43LEGACY_PCI_AUTOSELECT
- feat_pci = "P";
-#endif
-#ifdef CONFIG_B43LEGACY_LEDS
- feat_leds = "L";
-#endif
-#ifdef CONFIG_B43LEGACY_PIO
- feat_pio = "I";
-#endif
-#ifdef CONFIG_B43LEGACY_DMA
- feat_dma = "D";
-#endif
- printk(KERN_INFO "Broadcom 43xx-legacy driver loaded "
- "[ Features: %s%s%s%s ]\n",
- feat_pci, feat_leds, feat_pio, feat_dma);
-}
-
-static int __init b43legacy_init(void)
-{
- int err;
-
- b43legacy_debugfs_init();
-
- err = ssb_driver_register(&b43legacy_ssb_driver);
- if (err)
- goto err_dfs_exit;
-
- b43legacy_print_driverinfo();
-
- return err;
-
-err_dfs_exit:
- b43legacy_debugfs_exit();
- return err;
-}
-
-static void __exit b43legacy_exit(void)
-{
- ssb_driver_unregister(&b43legacy_ssb_driver);
- b43legacy_debugfs_exit();
-}
-
-module_init(b43legacy_init)
-module_exit(b43legacy_exit)
+++ /dev/null
-/*
-
- Broadcom B43legacy wireless driver
-
- Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
- Copyright (c) 2005 Stefano Brivio <stefano.brivio@polimi.it>
- Copyright (c) 2005, 2006 Michael Buesch <m@bues.ch>
- Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org>
- Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
- Copyright (c) 2007 Larry Finger <Larry.Finger@lwfinger.net>
-
- Some parts of the code in this file are derived from the ipw2200
- driver Copyright(c) 2003 - 2004 Intel Corporation.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
- Boston, MA 02110-1301, USA.
-
-*/
-
-#ifndef B43legacy_MAIN_H_
-#define B43legacy_MAIN_H_
-
-#include "b43legacy.h"
-
-
-#define P4D_BYT3S(magic, nr_bytes) u8 __p4dding##magic[nr_bytes]
-#define P4D_BYTES(line, nr_bytes) P4D_BYT3S(line, nr_bytes)
-/* Magic helper macro to pad structures. Ignore those above. It's magic. */
-#define PAD_BYTES(nr_bytes) P4D_BYTES(__LINE__ , (nr_bytes))
-
-
-/* Lightweight function to convert a frequency (in Mhz) to a channel number. */
-static inline
-u8 b43legacy_freq_to_channel_bg(int freq)
-{
- u8 channel;
-
- if (freq == 2484)
- channel = 14;
- else
- channel = (freq - 2407) / 5;
-
- return channel;
-}
-static inline
-u8 b43legacy_freq_to_channel(struct b43legacy_wldev *dev,
- int freq)
-{
- return b43legacy_freq_to_channel_bg(freq);
-}
-
-/* Lightweight function to convert a channel number to a frequency (in Mhz). */
-static inline
-int b43legacy_channel_to_freq_bg(u8 channel)
-{
- int freq;
-
- if (channel == 14)
- freq = 2484;
- else
- freq = 2407 + (5 * channel);
-
- return freq;
-}
-
-static inline
-int b43legacy_channel_to_freq(struct b43legacy_wldev *dev,
- u8 channel)
-{
- return b43legacy_channel_to_freq_bg(channel);
-}
-
-static inline
-int b43legacy_is_cck_rate(int rate)
-{
- return (rate == B43legacy_CCK_RATE_1MB ||
- rate == B43legacy_CCK_RATE_2MB ||
- rate == B43legacy_CCK_RATE_5MB ||
- rate == B43legacy_CCK_RATE_11MB);
-}
-
-static inline
-int b43legacy_is_ofdm_rate(int rate)
-{
- return !b43legacy_is_cck_rate(rate);
-}
-
-void b43legacy_tsf_read(struct b43legacy_wldev *dev, u64 *tsf);
-void b43legacy_tsf_write(struct b43legacy_wldev *dev, u64 tsf);
-
-u32 b43legacy_shm_read32(struct b43legacy_wldev *dev,
- u16 routing, u16 offset);
-u16 b43legacy_shm_read16(struct b43legacy_wldev *dev,
- u16 routing, u16 offset);
-void b43legacy_shm_write32(struct b43legacy_wldev *dev,
- u16 routing, u16 offset,
- u32 value);
-void b43legacy_shm_write16(struct b43legacy_wldev *dev,
- u16 routing, u16 offset,
- u16 value);
-
-u32 b43legacy_hf_read(struct b43legacy_wldev *dev);
-void b43legacy_hf_write(struct b43legacy_wldev *dev, u32 value);
-
-void b43legacy_dummy_transmission(struct b43legacy_wldev *dev);
-
-void b43legacy_wireless_core_reset(struct b43legacy_wldev *dev, u32 flags);
-
-void b43legacy_mac_suspend(struct b43legacy_wldev *dev);
-void b43legacy_mac_enable(struct b43legacy_wldev *dev);
-
-void b43legacy_controller_restart(struct b43legacy_wldev *dev,
- const char *reason);
-
-#endif /* B43legacy_MAIN_H_ */
+++ /dev/null
-/*
-
- Broadcom B43legacy wireless driver
-
- Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
- Stefano Brivio <stefano.brivio@polimi.it>
- Michael Buesch <m@bues.ch>
- Danny van Dyk <kugelfang@gentoo.org>
- Andreas Jaggi <andreas.jaggi@waterwave.ch>
- Copyright (c) 2007 Larry Finger <Larry.Finger@lwfinger.net>
-
- Some parts of the code in this file are derived from the ipw2200
- driver Copyright(c) 2003 - 2004 Intel Corporation.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
- Boston, MA 02110-1301, USA.
-
-*/
-
-#include <linux/delay.h>
-#include <linux/pci.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/types.h>
-
-#include "b43legacy.h"
-#include "phy.h"
-#include "main.h"
-#include "radio.h"
-#include "ilt.h"
-
-
-static const s8 b43legacy_tssi2dbm_b_table[] = {
- 0x4D, 0x4C, 0x4B, 0x4A,
- 0x4A, 0x49, 0x48, 0x47,
- 0x47, 0x46, 0x45, 0x45,
- 0x44, 0x43, 0x42, 0x42,
- 0x41, 0x40, 0x3F, 0x3E,
- 0x3D, 0x3C, 0x3B, 0x3A,
- 0x39, 0x38, 0x37, 0x36,
- 0x35, 0x34, 0x32, 0x31,
- 0x30, 0x2F, 0x2D, 0x2C,
- 0x2B, 0x29, 0x28, 0x26,
- 0x25, 0x23, 0x21, 0x1F,
- 0x1D, 0x1A, 0x17, 0x14,
- 0x10, 0x0C, 0x06, 0x00,
- -7, -7, -7, -7,
- -7, -7, -7, -7,
- -7, -7, -7, -7,
-};
-
-static const s8 b43legacy_tssi2dbm_g_table[] = {
- 77, 77, 77, 76,
- 76, 76, 75, 75,
- 74, 74, 73, 73,
- 73, 72, 72, 71,
- 71, 70, 70, 69,
- 68, 68, 67, 67,
- 66, 65, 65, 64,
- 63, 63, 62, 61,
- 60, 59, 58, 57,
- 56, 55, 54, 53,
- 52, 50, 49, 47,
- 45, 43, 40, 37,
- 33, 28, 22, 14,
- 5, -7, -20, -20,
- -20, -20, -20, -20,
- -20, -20, -20, -20,
-};
-
-static void b43legacy_phy_initg(struct b43legacy_wldev *dev);
-
-
-static inline
-void b43legacy_voluntary_preempt(void)
-{
- B43legacy_BUG_ON(!(!in_atomic() && !in_irq() &&
- !in_interrupt() && !irqs_disabled()));
-#ifndef CONFIG_PREEMPT
- cond_resched();
-#endif /* CONFIG_PREEMPT */
-}
-
-/* Lock the PHY registers against concurrent access from the microcode.
- * This lock is nonrecursive. */
-void b43legacy_phy_lock(struct b43legacy_wldev *dev)
-{
-#if B43legacy_DEBUG
- B43legacy_WARN_ON(dev->phy.phy_locked);
- dev->phy.phy_locked = 1;
-#endif
-
- if (dev->dev->id.revision < 3) {
- b43legacy_mac_suspend(dev);
- } else {
- if (!b43legacy_is_mode(dev->wl, NL80211_IFTYPE_AP))
- b43legacy_power_saving_ctl_bits(dev, -1, 1);
- }
-}
-
-void b43legacy_phy_unlock(struct b43legacy_wldev *dev)
-{
-#if B43legacy_DEBUG
- B43legacy_WARN_ON(!dev->phy.phy_locked);
- dev->phy.phy_locked = 0;
-#endif
-
- if (dev->dev->id.revision < 3) {
- b43legacy_mac_enable(dev);
- } else {
- if (!b43legacy_is_mode(dev->wl, NL80211_IFTYPE_AP))
- b43legacy_power_saving_ctl_bits(dev, -1, -1);
- }
-}
-
-u16 b43legacy_phy_read(struct b43legacy_wldev *dev, u16 offset)
-{
- b43legacy_write16(dev, B43legacy_MMIO_PHY_CONTROL, offset);
- return b43legacy_read16(dev, B43legacy_MMIO_PHY_DATA);
-}
-
-void b43legacy_phy_write(struct b43legacy_wldev *dev, u16 offset, u16 val)
-{
- b43legacy_write16(dev, B43legacy_MMIO_PHY_CONTROL, offset);
- mmiowb();
- b43legacy_write16(dev, B43legacy_MMIO_PHY_DATA, val);
-}
-
-void b43legacy_phy_calibrate(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
-
- b43legacy_read32(dev, B43legacy_MMIO_MACCTL); /* Dummy read. */
- if (phy->calibrated)
- return;
- if (phy->type == B43legacy_PHYTYPE_G && phy->rev == 1) {
- b43legacy_wireless_core_reset(dev, 0);
- b43legacy_phy_initg(dev);
- b43legacy_wireless_core_reset(dev, B43legacy_TMSLOW_GMODE);
- }
- phy->calibrated = 1;
-}
-
-/* initialize B PHY power control
- * as described in http://bcm-specs.sipsolutions.net/InitPowerControl
- */
-static void b43legacy_phy_init_pctl(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 saved_batt = 0;
- u16 saved_ratt = 0;
- u16 saved_txctl1 = 0;
- int must_reset_txpower = 0;
-
- B43legacy_BUG_ON(!(phy->type == B43legacy_PHYTYPE_B ||
- phy->type == B43legacy_PHYTYPE_G));
- if (is_bcm_board_vendor(dev) &&
- (dev->dev->bus->boardinfo.type == 0x0416))
- return;
-
- b43legacy_phy_write(dev, 0x0028, 0x8018);
- b43legacy_write16(dev, 0x03E6, b43legacy_read16(dev, 0x03E6) & 0xFFDF);
-
- if (phy->type == B43legacy_PHYTYPE_G) {
- if (!phy->gmode)
- return;
- b43legacy_phy_write(dev, 0x047A, 0xC111);
- }
- if (phy->savedpctlreg != 0xFFFF)
- return;
-#ifdef CONFIG_B43LEGACY_DEBUG
- if (phy->manual_txpower_control)
- return;
-#endif
-
- if (phy->type == B43legacy_PHYTYPE_B &&
- phy->rev >= 2 &&
- phy->radio_ver == 0x2050)
- b43legacy_radio_write16(dev, 0x0076,
- b43legacy_radio_read16(dev, 0x0076)
- | 0x0084);
- else {
- saved_batt = phy->bbatt;
- saved_ratt = phy->rfatt;
- saved_txctl1 = phy->txctl1;
- if ((phy->radio_rev >= 6) && (phy->radio_rev <= 8)
- && /*FIXME: incomplete specs for 5 < revision < 9 */ 0)
- b43legacy_radio_set_txpower_bg(dev, 0xB, 0x1F, 0);
- else
- b43legacy_radio_set_txpower_bg(dev, 0xB, 9, 0);
- must_reset_txpower = 1;
- }
- b43legacy_dummy_transmission(dev);
-
- phy->savedpctlreg = b43legacy_phy_read(dev, B43legacy_PHY_G_PCTL);
-
- if (must_reset_txpower)
- b43legacy_radio_set_txpower_bg(dev, saved_batt, saved_ratt,
- saved_txctl1);
- else
- b43legacy_radio_write16(dev, 0x0076, b43legacy_radio_read16(dev,
- 0x0076) & 0xFF7B);
- b43legacy_radio_clear_tssi(dev);
-}
-
-static void b43legacy_phy_agcsetup(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 offset = 0x0000;
-
- if (phy->rev == 1)
- offset = 0x4C00;
-
- b43legacy_ilt_write(dev, offset, 0x00FE);
- b43legacy_ilt_write(dev, offset + 1, 0x000D);
- b43legacy_ilt_write(dev, offset + 2, 0x0013);
- b43legacy_ilt_write(dev, offset + 3, 0x0019);
-
- if (phy->rev == 1) {
- b43legacy_ilt_write(dev, 0x1800, 0x2710);
- b43legacy_ilt_write(dev, 0x1801, 0x9B83);
- b43legacy_ilt_write(dev, 0x1802, 0x9B83);
- b43legacy_ilt_write(dev, 0x1803, 0x0F8D);
- b43legacy_phy_write(dev, 0x0455, 0x0004);
- }
-
- b43legacy_phy_write(dev, 0x04A5, (b43legacy_phy_read(dev, 0x04A5)
- & 0x00FF) | 0x5700);
- b43legacy_phy_write(dev, 0x041A, (b43legacy_phy_read(dev, 0x041A)
- & 0xFF80) | 0x000F);
- b43legacy_phy_write(dev, 0x041A, (b43legacy_phy_read(dev, 0x041A)
- & 0xC07F) | 0x2B80);
- b43legacy_phy_write(dev, 0x048C, (b43legacy_phy_read(dev, 0x048C)
- & 0xF0FF) | 0x0300);
-
- b43legacy_radio_write16(dev, 0x007A,
- b43legacy_radio_read16(dev, 0x007A)
- | 0x0008);
-
- b43legacy_phy_write(dev, 0x04A0, (b43legacy_phy_read(dev, 0x04A0)
- & 0xFFF0) | 0x0008);
- b43legacy_phy_write(dev, 0x04A1, (b43legacy_phy_read(dev, 0x04A1)
- & 0xF0FF) | 0x0600);
- b43legacy_phy_write(dev, 0x04A2, (b43legacy_phy_read(dev, 0x04A2)
- & 0xF0FF) | 0x0700);
- b43legacy_phy_write(dev, 0x04A0, (b43legacy_phy_read(dev, 0x04A0)
- & 0xF0FF) | 0x0100);
-
- if (phy->rev == 1)
- b43legacy_phy_write(dev, 0x04A2,
- (b43legacy_phy_read(dev, 0x04A2)
- & 0xFFF0) | 0x0007);
-
- b43legacy_phy_write(dev, 0x0488, (b43legacy_phy_read(dev, 0x0488)
- & 0xFF00) | 0x001C);
- b43legacy_phy_write(dev, 0x0488, (b43legacy_phy_read(dev, 0x0488)
- & 0xC0FF) | 0x0200);
- b43legacy_phy_write(dev, 0x0496, (b43legacy_phy_read(dev, 0x0496)
- & 0xFF00) | 0x001C);
- b43legacy_phy_write(dev, 0x0489, (b43legacy_phy_read(dev, 0x0489)
- & 0xFF00) | 0x0020);
- b43legacy_phy_write(dev, 0x0489, (b43legacy_phy_read(dev, 0x0489)
- & 0xC0FF) | 0x0200);
- b43legacy_phy_write(dev, 0x0482, (b43legacy_phy_read(dev, 0x0482)
- & 0xFF00) | 0x002E);
- b43legacy_phy_write(dev, 0x0496, (b43legacy_phy_read(dev, 0x0496)
- & 0x00FF) | 0x1A00);
- b43legacy_phy_write(dev, 0x0481, (b43legacy_phy_read(dev, 0x0481)
- & 0xFF00) | 0x0028);
- b43legacy_phy_write(dev, 0x0481, (b43legacy_phy_read(dev, 0x0481)
- & 0x00FF) | 0x2C00);
-
- if (phy->rev == 1) {
- b43legacy_phy_write(dev, 0x0430, 0x092B);
- b43legacy_phy_write(dev, 0x041B,
- (b43legacy_phy_read(dev, 0x041B)
- & 0xFFE1) | 0x0002);
- } else {
- b43legacy_phy_write(dev, 0x041B,
- b43legacy_phy_read(dev, 0x041B) & 0xFFE1);
- b43legacy_phy_write(dev, 0x041F, 0x287A);
- b43legacy_phy_write(dev, 0x0420,
- (b43legacy_phy_read(dev, 0x0420)
- & 0xFFF0) | 0x0004);
- }
-
- if (phy->rev > 2) {
- b43legacy_phy_write(dev, 0x0422, 0x287A);
- b43legacy_phy_write(dev, 0x0420,
- (b43legacy_phy_read(dev, 0x0420)
- & 0x0FFF) | 0x3000);
- }
-
- b43legacy_phy_write(dev, 0x04A8, (b43legacy_phy_read(dev, 0x04A8)
- & 0x8080) | 0x7874);
- b43legacy_phy_write(dev, 0x048E, 0x1C00);
-
- if (phy->rev == 1) {
- b43legacy_phy_write(dev, 0x04AB,
- (b43legacy_phy_read(dev, 0x04AB)
- & 0xF0FF) | 0x0600);
- b43legacy_phy_write(dev, 0x048B, 0x005E);
- b43legacy_phy_write(dev, 0x048C,
- (b43legacy_phy_read(dev, 0x048C) & 0xFF00)
- | 0x001E);
- b43legacy_phy_write(dev, 0x048D, 0x0002);
- }
-
- b43legacy_ilt_write(dev, offset + 0x0800, 0);
- b43legacy_ilt_write(dev, offset + 0x0801, 7);
- b43legacy_ilt_write(dev, offset + 0x0802, 16);
- b43legacy_ilt_write(dev, offset + 0x0803, 28);
-
- if (phy->rev >= 6) {
- b43legacy_phy_write(dev, 0x0426,
- (b43legacy_phy_read(dev, 0x0426) & 0xFFFC));
- b43legacy_phy_write(dev, 0x0426,
- (b43legacy_phy_read(dev, 0x0426) & 0xEFFF));
- }
-}
-
-static void b43legacy_phy_setupg(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 i;
-
- B43legacy_BUG_ON(phy->type != B43legacy_PHYTYPE_G);
- if (phy->rev == 1) {
- b43legacy_phy_write(dev, 0x0406, 0x4F19);
- b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
- (b43legacy_phy_read(dev,
- B43legacy_PHY_G_CRS) & 0xFC3F) | 0x0340);
- b43legacy_phy_write(dev, 0x042C, 0x005A);
- b43legacy_phy_write(dev, 0x0427, 0x001A);
-
- for (i = 0; i < B43legacy_ILT_FINEFREQG_SIZE; i++)
- b43legacy_ilt_write(dev, 0x5800 + i,
- b43legacy_ilt_finefreqg[i]);
- for (i = 0; i < B43legacy_ILT_NOISEG1_SIZE; i++)
- b43legacy_ilt_write(dev, 0x1800 + i,
- b43legacy_ilt_noiseg1[i]);
- for (i = 0; i < B43legacy_ILT_ROTOR_SIZE; i++)
- b43legacy_ilt_write32(dev, 0x2000 + i,
- b43legacy_ilt_rotor[i]);
- } else {
- /* nrssi values are signed 6-bit values. Why 0x7654 here? */
- b43legacy_nrssi_hw_write(dev, 0xBA98, (s16)0x7654);
-
- if (phy->rev == 2) {
- b43legacy_phy_write(dev, 0x04C0, 0x1861);
- b43legacy_phy_write(dev, 0x04C1, 0x0271);
- } else if (phy->rev > 2) {
- b43legacy_phy_write(dev, 0x04C0, 0x0098);
- b43legacy_phy_write(dev, 0x04C1, 0x0070);
- b43legacy_phy_write(dev, 0x04C9, 0x0080);
- }
- b43legacy_phy_write(dev, 0x042B, b43legacy_phy_read(dev,
- 0x042B) | 0x800);
-
- for (i = 0; i < 64; i++)
- b43legacy_ilt_write(dev, 0x4000 + i, i);
- for (i = 0; i < B43legacy_ILT_NOISEG2_SIZE; i++)
- b43legacy_ilt_write(dev, 0x1800 + i,
- b43legacy_ilt_noiseg2[i]);
- }
-
- if (phy->rev <= 2)
- for (i = 0; i < B43legacy_ILT_NOISESCALEG_SIZE; i++)
- b43legacy_ilt_write(dev, 0x1400 + i,
- b43legacy_ilt_noisescaleg1[i]);
- else if ((phy->rev >= 7) && (b43legacy_phy_read(dev, 0x0449) & 0x0200))
- for (i = 0; i < B43legacy_ILT_NOISESCALEG_SIZE; i++)
- b43legacy_ilt_write(dev, 0x1400 + i,
- b43legacy_ilt_noisescaleg3[i]);
- else
- for (i = 0; i < B43legacy_ILT_NOISESCALEG_SIZE; i++)
- b43legacy_ilt_write(dev, 0x1400 + i,
- b43legacy_ilt_noisescaleg2[i]);
-
- if (phy->rev == 2)
- for (i = 0; i < B43legacy_ILT_SIGMASQR_SIZE; i++)
- b43legacy_ilt_write(dev, 0x5000 + i,
- b43legacy_ilt_sigmasqr1[i]);
- else if ((phy->rev > 2) && (phy->rev <= 8))
- for (i = 0; i < B43legacy_ILT_SIGMASQR_SIZE; i++)
- b43legacy_ilt_write(dev, 0x5000 + i,
- b43legacy_ilt_sigmasqr2[i]);
-
- if (phy->rev == 1) {
- for (i = 0; i < B43legacy_ILT_RETARD_SIZE; i++)
- b43legacy_ilt_write32(dev, 0x2400 + i,
- b43legacy_ilt_retard[i]);
- for (i = 4; i < 20; i++)
- b43legacy_ilt_write(dev, 0x5400 + i, 0x0020);
- b43legacy_phy_agcsetup(dev);
-
- if (is_bcm_board_vendor(dev) &&
- (dev->dev->bus->boardinfo.type == 0x0416) &&
- (dev->dev->bus->sprom.board_rev == 0x0017))
- return;
-
- b43legacy_ilt_write(dev, 0x5001, 0x0002);
- b43legacy_ilt_write(dev, 0x5002, 0x0001);
- } else {
- for (i = 0; i <= 0x20; i++)
- b43legacy_ilt_write(dev, 0x1000 + i, 0x0820);
- b43legacy_phy_agcsetup(dev);
- b43legacy_phy_read(dev, 0x0400); /* dummy read */
- b43legacy_phy_write(dev, 0x0403, 0x1000);
- b43legacy_ilt_write(dev, 0x3C02, 0x000F);
- b43legacy_ilt_write(dev, 0x3C03, 0x0014);
-
- if (is_bcm_board_vendor(dev) &&
- (dev->dev->bus->boardinfo.type == 0x0416) &&
- (dev->dev->bus->sprom.board_rev == 0x0017))
- return;
-
- b43legacy_ilt_write(dev, 0x0401, 0x0002);
- b43legacy_ilt_write(dev, 0x0402, 0x0001);
- }
-}
-
-/* Initialize the APHY portion of a GPHY. */
-static void b43legacy_phy_inita(struct b43legacy_wldev *dev)
-{
-
- might_sleep();
-
- b43legacy_phy_setupg(dev);
- if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_PACTRL)
- b43legacy_phy_write(dev, 0x046E, 0x03CF);
-}
-
-static void b43legacy_phy_initb2(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 offset;
- int val;
-
- b43legacy_write16(dev, 0x03EC, 0x3F22);
- b43legacy_phy_write(dev, 0x0020, 0x301C);
- b43legacy_phy_write(dev, 0x0026, 0x0000);
- b43legacy_phy_write(dev, 0x0030, 0x00C6);
- b43legacy_phy_write(dev, 0x0088, 0x3E00);
- val = 0x3C3D;
- for (offset = 0x0089; offset < 0x00A7; offset++) {
- b43legacy_phy_write(dev, offset, val);
- val -= 0x0202;
- }
- b43legacy_phy_write(dev, 0x03E4, 0x3000);
- b43legacy_radio_selectchannel(dev, phy->channel, 0);
- if (phy->radio_ver != 0x2050) {
- b43legacy_radio_write16(dev, 0x0075, 0x0080);
- b43legacy_radio_write16(dev, 0x0079, 0x0081);
- }
- b43legacy_radio_write16(dev, 0x0050, 0x0020);
- b43legacy_radio_write16(dev, 0x0050, 0x0023);
- if (phy->radio_ver == 0x2050) {
- b43legacy_radio_write16(dev, 0x0050, 0x0020);
- b43legacy_radio_write16(dev, 0x005A, 0x0070);
- b43legacy_radio_write16(dev, 0x005B, 0x007B);
- b43legacy_radio_write16(dev, 0x005C, 0x00B0);
- b43legacy_radio_write16(dev, 0x007A, 0x000F);
- b43legacy_phy_write(dev, 0x0038, 0x0677);
- b43legacy_radio_init2050(dev);
- }
- b43legacy_phy_write(dev, 0x0014, 0x0080);
- b43legacy_phy_write(dev, 0x0032, 0x00CA);
- b43legacy_phy_write(dev, 0x0032, 0x00CC);
- b43legacy_phy_write(dev, 0x0035, 0x07C2);
- b43legacy_phy_lo_b_measure(dev);
- b43legacy_phy_write(dev, 0x0026, 0xCC00);
- if (phy->radio_ver != 0x2050)
- b43legacy_phy_write(dev, 0x0026, 0xCE00);
- b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, 0x1000);
- b43legacy_phy_write(dev, 0x002A, 0x88A3);
- if (phy->radio_ver != 0x2050)
- b43legacy_phy_write(dev, 0x002A, 0x88C2);
- b43legacy_radio_set_txpower_bg(dev, 0xFFFF, 0xFFFF, 0xFFFF);
- b43legacy_phy_init_pctl(dev);
-}
-
-static void b43legacy_phy_initb4(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 offset;
- u16 val;
-
- b43legacy_write16(dev, 0x03EC, 0x3F22);
- b43legacy_phy_write(dev, 0x0020, 0x301C);
- b43legacy_phy_write(dev, 0x0026, 0x0000);
- b43legacy_phy_write(dev, 0x0030, 0x00C6);
- b43legacy_phy_write(dev, 0x0088, 0x3E00);
- val = 0x3C3D;
- for (offset = 0x0089; offset < 0x00A7; offset++) {
- b43legacy_phy_write(dev, offset, val);
- val -= 0x0202;
- }
- b43legacy_phy_write(dev, 0x03E4, 0x3000);
- b43legacy_radio_selectchannel(dev, phy->channel, 0);
- if (phy->radio_ver != 0x2050) {
- b43legacy_radio_write16(dev, 0x0075, 0x0080);
- b43legacy_radio_write16(dev, 0x0079, 0x0081);
- }
- b43legacy_radio_write16(dev, 0x0050, 0x0020);
- b43legacy_radio_write16(dev, 0x0050, 0x0023);
- if (phy->radio_ver == 0x2050) {
- b43legacy_radio_write16(dev, 0x0050, 0x0020);
- b43legacy_radio_write16(dev, 0x005A, 0x0070);
- b43legacy_radio_write16(dev, 0x005B, 0x007B);
- b43legacy_radio_write16(dev, 0x005C, 0x00B0);
- b43legacy_radio_write16(dev, 0x007A, 0x000F);
- b43legacy_phy_write(dev, 0x0038, 0x0677);
- b43legacy_radio_init2050(dev);
- }
- b43legacy_phy_write(dev, 0x0014, 0x0080);
- b43legacy_phy_write(dev, 0x0032, 0x00CA);
- if (phy->radio_ver == 0x2050)
- b43legacy_phy_write(dev, 0x0032, 0x00E0);
- b43legacy_phy_write(dev, 0x0035, 0x07C2);
-
- b43legacy_phy_lo_b_measure(dev);
-
- b43legacy_phy_write(dev, 0x0026, 0xCC00);
- if (phy->radio_ver == 0x2050)
- b43legacy_phy_write(dev, 0x0026, 0xCE00);
- b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, 0x1100);
- b43legacy_phy_write(dev, 0x002A, 0x88A3);
- if (phy->radio_ver == 0x2050)
- b43legacy_phy_write(dev, 0x002A, 0x88C2);
- b43legacy_radio_set_txpower_bg(dev, 0xFFFF, 0xFFFF, 0xFFFF);
- if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_RSSI) {
- b43legacy_calc_nrssi_slope(dev);
- b43legacy_calc_nrssi_threshold(dev);
- }
- b43legacy_phy_init_pctl(dev);
-}
-
-static void b43legacy_phy_initb5(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 offset;
- u16 value;
- u8 old_channel;
-
- if (phy->analog == 1)
- b43legacy_radio_write16(dev, 0x007A,
- b43legacy_radio_read16(dev, 0x007A)
- | 0x0050);
- if (!is_bcm_board_vendor(dev) &&
- (dev->dev->bus->boardinfo.type != 0x0416)) {
- value = 0x2120;
- for (offset = 0x00A8 ; offset < 0x00C7; offset++) {
- b43legacy_phy_write(dev, offset, value);
- value += 0x0202;
- }
- }
- b43legacy_phy_write(dev, 0x0035,
- (b43legacy_phy_read(dev, 0x0035) & 0xF0FF)
- | 0x0700);
- if (phy->radio_ver == 0x2050)
- b43legacy_phy_write(dev, 0x0038, 0x0667);
-
- if (phy->gmode) {
- if (phy->radio_ver == 0x2050) {
- b43legacy_radio_write16(dev, 0x007A,
- b43legacy_radio_read16(dev, 0x007A)
- | 0x0020);
- b43legacy_radio_write16(dev, 0x0051,
- b43legacy_radio_read16(dev, 0x0051)
- | 0x0004);
- }
- b43legacy_write16(dev, B43legacy_MMIO_PHY_RADIO, 0x0000);
-
- b43legacy_phy_write(dev, 0x0802, b43legacy_phy_read(dev, 0x0802)
- | 0x0100);
- b43legacy_phy_write(dev, 0x042B, b43legacy_phy_read(dev, 0x042B)
- | 0x2000);
-
- b43legacy_phy_write(dev, 0x001C, 0x186A);
-
- b43legacy_phy_write(dev, 0x0013, (b43legacy_phy_read(dev,
- 0x0013) & 0x00FF) | 0x1900);
- b43legacy_phy_write(dev, 0x0035, (b43legacy_phy_read(dev,
- 0x0035) & 0xFFC0) | 0x0064);
- b43legacy_phy_write(dev, 0x005D, (b43legacy_phy_read(dev,
- 0x005D) & 0xFF80) | 0x000A);
- b43legacy_phy_write(dev, 0x5B, 0x0000);
- b43legacy_phy_write(dev, 0x5C, 0x0000);
- }
-
- if (dev->bad_frames_preempt)
- b43legacy_phy_write(dev, B43legacy_PHY_RADIO_BITFIELD,
- b43legacy_phy_read(dev,
- B43legacy_PHY_RADIO_BITFIELD) | (1 << 12));
-
- if (phy->analog == 1) {
- b43legacy_phy_write(dev, 0x0026, 0xCE00);
- b43legacy_phy_write(dev, 0x0021, 0x3763);
- b43legacy_phy_write(dev, 0x0022, 0x1BC3);
- b43legacy_phy_write(dev, 0x0023, 0x06F9);
- b43legacy_phy_write(dev, 0x0024, 0x037E);
- } else
- b43legacy_phy_write(dev, 0x0026, 0xCC00);
- b43legacy_phy_write(dev, 0x0030, 0x00C6);
- b43legacy_write16(dev, 0x03EC, 0x3F22);
-
- if (phy->analog == 1)
- b43legacy_phy_write(dev, 0x0020, 0x3E1C);
- else
- b43legacy_phy_write(dev, 0x0020, 0x301C);
-
- if (phy->analog == 0)
- b43legacy_write16(dev, 0x03E4, 0x3000);
-
- old_channel = (phy->channel == 0xFF) ? 1 : phy->channel;
- /* Force to channel 7, even if not supported. */
- b43legacy_radio_selectchannel(dev, 7, 0);
-
- if (phy->radio_ver != 0x2050) {
- b43legacy_radio_write16(dev, 0x0075, 0x0080);
- b43legacy_radio_write16(dev, 0x0079, 0x0081);
- }
-
- b43legacy_radio_write16(dev, 0x0050, 0x0020);
- b43legacy_radio_write16(dev, 0x0050, 0x0023);
-
- if (phy->radio_ver == 0x2050) {
- b43legacy_radio_write16(dev, 0x0050, 0x0020);
- b43legacy_radio_write16(dev, 0x005A, 0x0070);
- }
-
- b43legacy_radio_write16(dev, 0x005B, 0x007B);
- b43legacy_radio_write16(dev, 0x005C, 0x00B0);
-
- b43legacy_radio_write16(dev, 0x007A, b43legacy_radio_read16(dev,
- 0x007A) | 0x0007);
-
- b43legacy_radio_selectchannel(dev, old_channel, 0);
-
- b43legacy_phy_write(dev, 0x0014, 0x0080);
- b43legacy_phy_write(dev, 0x0032, 0x00CA);
- b43legacy_phy_write(dev, 0x002A, 0x88A3);
-
- b43legacy_radio_set_txpower_bg(dev, 0xFFFF, 0xFFFF, 0xFFFF);
-
- if (phy->radio_ver == 0x2050)
- b43legacy_radio_write16(dev, 0x005D, 0x000D);
-
- b43legacy_write16(dev, 0x03E4, (b43legacy_read16(dev, 0x03E4) &
- 0xFFC0) | 0x0004);
-}
-
-static void b43legacy_phy_initb6(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 offset;
- u16 val;
- u8 old_channel;
-
- b43legacy_phy_write(dev, 0x003E, 0x817A);
- b43legacy_radio_write16(dev, 0x007A,
- (b43legacy_radio_read16(dev, 0x007A) | 0x0058));
- if (phy->radio_rev == 4 ||
- phy->radio_rev == 5) {
- b43legacy_radio_write16(dev, 0x0051, 0x0037);
- b43legacy_radio_write16(dev, 0x0052, 0x0070);
- b43legacy_radio_write16(dev, 0x0053, 0x00B3);
- b43legacy_radio_write16(dev, 0x0054, 0x009B);
- b43legacy_radio_write16(dev, 0x005A, 0x0088);
- b43legacy_radio_write16(dev, 0x005B, 0x0088);
- b43legacy_radio_write16(dev, 0x005D, 0x0088);
- b43legacy_radio_write16(dev, 0x005E, 0x0088);
- b43legacy_radio_write16(dev, 0x007D, 0x0088);
- b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
- B43legacy_UCODEFLAGS_OFFSET,
- (b43legacy_shm_read32(dev,
- B43legacy_SHM_SHARED,
- B43legacy_UCODEFLAGS_OFFSET)
- | 0x00000200));
- }
- if (phy->radio_rev == 8) {
- b43legacy_radio_write16(dev, 0x0051, 0x0000);
- b43legacy_radio_write16(dev, 0x0052, 0x0040);
- b43legacy_radio_write16(dev, 0x0053, 0x00B7);
- b43legacy_radio_write16(dev, 0x0054, 0x0098);
- b43legacy_radio_write16(dev, 0x005A, 0x0088);
- b43legacy_radio_write16(dev, 0x005B, 0x006B);
- b43legacy_radio_write16(dev, 0x005C, 0x000F);
- if (dev->dev->bus->sprom.boardflags_lo & 0x8000) {
- b43legacy_radio_write16(dev, 0x005D, 0x00FA);
- b43legacy_radio_write16(dev, 0x005E, 0x00D8);
- } else {
- b43legacy_radio_write16(dev, 0x005D, 0x00F5);
- b43legacy_radio_write16(dev, 0x005E, 0x00B8);
- }
- b43legacy_radio_write16(dev, 0x0073, 0x0003);
- b43legacy_radio_write16(dev, 0x007D, 0x00A8);
- b43legacy_radio_write16(dev, 0x007C, 0x0001);
- b43legacy_radio_write16(dev, 0x007E, 0x0008);
- }
- val = 0x1E1F;
- for (offset = 0x0088; offset < 0x0098; offset++) {
- b43legacy_phy_write(dev, offset, val);
- val -= 0x0202;
- }
- val = 0x3E3F;
- for (offset = 0x0098; offset < 0x00A8; offset++) {
- b43legacy_phy_write(dev, offset, val);
- val -= 0x0202;
- }
- val = 0x2120;
- for (offset = 0x00A8; offset < 0x00C8; offset++) {
- b43legacy_phy_write(dev, offset, (val & 0x3F3F));
- val += 0x0202;
- }
- if (phy->type == B43legacy_PHYTYPE_G) {
- b43legacy_radio_write16(dev, 0x007A,
- b43legacy_radio_read16(dev, 0x007A) |
- 0x0020);
- b43legacy_radio_write16(dev, 0x0051,
- b43legacy_radio_read16(dev, 0x0051) |
- 0x0004);
- b43legacy_phy_write(dev, 0x0802,
- b43legacy_phy_read(dev, 0x0802) | 0x0100);
- b43legacy_phy_write(dev, 0x042B,
- b43legacy_phy_read(dev, 0x042B) | 0x2000);
- b43legacy_phy_write(dev, 0x5B, 0x0000);
- b43legacy_phy_write(dev, 0x5C, 0x0000);
- }
-
- old_channel = phy->channel;
- if (old_channel >= 8)
- b43legacy_radio_selectchannel(dev, 1, 0);
- else
- b43legacy_radio_selectchannel(dev, 13, 0);
-
- b43legacy_radio_write16(dev, 0x0050, 0x0020);
- b43legacy_radio_write16(dev, 0x0050, 0x0023);
- udelay(40);
- if (phy->radio_rev < 6 || phy->radio_rev == 8) {
- b43legacy_radio_write16(dev, 0x007C,
- (b43legacy_radio_read16(dev, 0x007C)
- | 0x0002));
- b43legacy_radio_write16(dev, 0x0050, 0x0020);
- }
- if (phy->radio_rev <= 2) {
- b43legacy_radio_write16(dev, 0x0050, 0x0020);
- b43legacy_radio_write16(dev, 0x005A, 0x0070);
- b43legacy_radio_write16(dev, 0x005B, 0x007B);
- b43legacy_radio_write16(dev, 0x005C, 0x00B0);
- }
- b43legacy_radio_write16(dev, 0x007A,
- (b43legacy_radio_read16(dev,
- 0x007A) & 0x00F8) | 0x0007);
-
- b43legacy_radio_selectchannel(dev, old_channel, 0);
-
- b43legacy_phy_write(dev, 0x0014, 0x0200);
- if (phy->radio_rev >= 6)
- b43legacy_phy_write(dev, 0x002A, 0x88C2);
- else
- b43legacy_phy_write(dev, 0x002A, 0x8AC0);
- b43legacy_phy_write(dev, 0x0038, 0x0668);
- b43legacy_radio_set_txpower_bg(dev, 0xFFFF, 0xFFFF, 0xFFFF);
- if (phy->radio_rev == 4 || phy->radio_rev == 5)
- b43legacy_phy_write(dev, 0x005D, (b43legacy_phy_read(dev,
- 0x005D) & 0xFF80) | 0x0003);
- if (phy->radio_rev <= 2)
- b43legacy_radio_write16(dev, 0x005D, 0x000D);
-
- if (phy->analog == 4) {
- b43legacy_write16(dev, 0x03E4, 0x0009);
- b43legacy_phy_write(dev, 0x61, b43legacy_phy_read(dev, 0x61)
- & 0xFFF);
- } else
- b43legacy_phy_write(dev, 0x0002, (b43legacy_phy_read(dev,
- 0x0002) & 0xFFC0) | 0x0004);
- if (phy->type == B43legacy_PHYTYPE_G)
- b43legacy_write16(dev, 0x03E6, 0x0);
- if (phy->type == B43legacy_PHYTYPE_B) {
- b43legacy_write16(dev, 0x03E6, 0x8140);
- b43legacy_phy_write(dev, 0x0016, 0x0410);
- b43legacy_phy_write(dev, 0x0017, 0x0820);
- b43legacy_phy_write(dev, 0x0062, 0x0007);
- b43legacy_radio_init2050(dev);
- b43legacy_phy_lo_g_measure(dev);
- if (dev->dev->bus->sprom.boardflags_lo &
- B43legacy_BFL_RSSI) {
- b43legacy_calc_nrssi_slope(dev);
- b43legacy_calc_nrssi_threshold(dev);
- }
- b43legacy_phy_init_pctl(dev);
- }
-}
-
-static void b43legacy_calc_loopback_gain(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 backup_phy[15] = {0};
- u16 backup_radio[3];
- u16 backup_bband;
- u16 i;
- u16 loop1_cnt;
- u16 loop1_done;
- u16 loop1_omitted;
- u16 loop2_done;
-
- backup_phy[0] = b43legacy_phy_read(dev, 0x0429);
- backup_phy[1] = b43legacy_phy_read(dev, 0x0001);
- backup_phy[2] = b43legacy_phy_read(dev, 0x0811);
- backup_phy[3] = b43legacy_phy_read(dev, 0x0812);
- if (phy->rev != 1) {
- backup_phy[4] = b43legacy_phy_read(dev, 0x0814);
- backup_phy[5] = b43legacy_phy_read(dev, 0x0815);
- }
- backup_phy[6] = b43legacy_phy_read(dev, 0x005A);
- backup_phy[7] = b43legacy_phy_read(dev, 0x0059);
- backup_phy[8] = b43legacy_phy_read(dev, 0x0058);
- backup_phy[9] = b43legacy_phy_read(dev, 0x000A);
- backup_phy[10] = b43legacy_phy_read(dev, 0x0003);
- backup_phy[11] = b43legacy_phy_read(dev, 0x080F);
- backup_phy[12] = b43legacy_phy_read(dev, 0x0810);
- backup_phy[13] = b43legacy_phy_read(dev, 0x002B);
- backup_phy[14] = b43legacy_phy_read(dev, 0x0015);
- b43legacy_phy_read(dev, 0x002D); /* dummy read */
- backup_bband = phy->bbatt;
- backup_radio[0] = b43legacy_radio_read16(dev, 0x0052);
- backup_radio[1] = b43legacy_radio_read16(dev, 0x0043);
- backup_radio[2] = b43legacy_radio_read16(dev, 0x007A);
-
- b43legacy_phy_write(dev, 0x0429,
- b43legacy_phy_read(dev, 0x0429) & 0x3FFF);
- b43legacy_phy_write(dev, 0x0001,
- b43legacy_phy_read(dev, 0x0001) & 0x8000);
- b43legacy_phy_write(dev, 0x0811,
- b43legacy_phy_read(dev, 0x0811) | 0x0002);
- b43legacy_phy_write(dev, 0x0812,
- b43legacy_phy_read(dev, 0x0812) & 0xFFFD);
- b43legacy_phy_write(dev, 0x0811,
- b43legacy_phy_read(dev, 0x0811) | 0x0001);
- b43legacy_phy_write(dev, 0x0812,
- b43legacy_phy_read(dev, 0x0812) & 0xFFFE);
- if (phy->rev != 1) {
- b43legacy_phy_write(dev, 0x0814,
- b43legacy_phy_read(dev, 0x0814) | 0x0001);
- b43legacy_phy_write(dev, 0x0815,
- b43legacy_phy_read(dev, 0x0815) & 0xFFFE);
- b43legacy_phy_write(dev, 0x0814,
- b43legacy_phy_read(dev, 0x0814) | 0x0002);
- b43legacy_phy_write(dev, 0x0815,
- b43legacy_phy_read(dev, 0x0815) & 0xFFFD);
- }
- b43legacy_phy_write(dev, 0x0811, b43legacy_phy_read(dev, 0x0811) |
- 0x000C);
- b43legacy_phy_write(dev, 0x0812, b43legacy_phy_read(dev, 0x0812) |
- 0x000C);
-
- b43legacy_phy_write(dev, 0x0811, (b43legacy_phy_read(dev, 0x0811)
- & 0xFFCF) | 0x0030);
- b43legacy_phy_write(dev, 0x0812, (b43legacy_phy_read(dev, 0x0812)
- & 0xFFCF) | 0x0010);
-
- b43legacy_phy_write(dev, 0x005A, 0x0780);
- b43legacy_phy_write(dev, 0x0059, 0xC810);
- b43legacy_phy_write(dev, 0x0058, 0x000D);
- if (phy->analog == 0)
- b43legacy_phy_write(dev, 0x0003, 0x0122);
- else
- b43legacy_phy_write(dev, 0x000A,
- b43legacy_phy_read(dev, 0x000A)
- | 0x2000);
- if (phy->rev != 1) {
- b43legacy_phy_write(dev, 0x0814,
- b43legacy_phy_read(dev, 0x0814) | 0x0004);
- b43legacy_phy_write(dev, 0x0815,
- b43legacy_phy_read(dev, 0x0815) & 0xFFFB);
- }
- b43legacy_phy_write(dev, 0x0003,
- (b43legacy_phy_read(dev, 0x0003)
- & 0xFF9F) | 0x0040);
- if (phy->radio_ver == 0x2050 && phy->radio_rev == 2) {
- b43legacy_radio_write16(dev, 0x0052, 0x0000);
- b43legacy_radio_write16(dev, 0x0043,
- (b43legacy_radio_read16(dev, 0x0043)
- & 0xFFF0) | 0x0009);
- loop1_cnt = 9;
- } else if (phy->radio_rev == 8) {
- b43legacy_radio_write16(dev, 0x0043, 0x000F);
- loop1_cnt = 15;
- } else
- loop1_cnt = 0;
-
- b43legacy_phy_set_baseband_attenuation(dev, 11);
-
- if (phy->rev >= 3)
- b43legacy_phy_write(dev, 0x080F, 0xC020);
- else
- b43legacy_phy_write(dev, 0x080F, 0x8020);
- b43legacy_phy_write(dev, 0x0810, 0x0000);
-
- b43legacy_phy_write(dev, 0x002B,
- (b43legacy_phy_read(dev, 0x002B)
- & 0xFFC0) | 0x0001);
- b43legacy_phy_write(dev, 0x002B,
- (b43legacy_phy_read(dev, 0x002B)
- & 0xC0FF) | 0x0800);
- b43legacy_phy_write(dev, 0x0811,
- b43legacy_phy_read(dev, 0x0811) | 0x0100);
- b43legacy_phy_write(dev, 0x0812,
- b43legacy_phy_read(dev, 0x0812) & 0xCFFF);
- if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_EXTLNA) {
- if (phy->rev >= 7) {
- b43legacy_phy_write(dev, 0x0811,
- b43legacy_phy_read(dev, 0x0811)
- | 0x0800);
- b43legacy_phy_write(dev, 0x0812,
- b43legacy_phy_read(dev, 0x0812)
- | 0x8000);
- }
- }
- b43legacy_radio_write16(dev, 0x007A,
- b43legacy_radio_read16(dev, 0x007A)
- & 0x00F7);
-
- for (i = 0; i < loop1_cnt; i++) {
- b43legacy_radio_write16(dev, 0x0043, loop1_cnt);
- b43legacy_phy_write(dev, 0x0812,
- (b43legacy_phy_read(dev, 0x0812)
- & 0xF0FF) | (i << 8));
- b43legacy_phy_write(dev, 0x0015,
- (b43legacy_phy_read(dev, 0x0015)
- & 0x0FFF) | 0xA000);
- b43legacy_phy_write(dev, 0x0015,
- (b43legacy_phy_read(dev, 0x0015)
- & 0x0FFF) | 0xF000);
- udelay(20);
- if (b43legacy_phy_read(dev, 0x002D) >= 0x0DFC)
- break;
- }
- loop1_done = i;
- loop1_omitted = loop1_cnt - loop1_done;
-
- loop2_done = 0;
- if (loop1_done >= 8) {
- b43legacy_phy_write(dev, 0x0812,
- b43legacy_phy_read(dev, 0x0812)
- | 0x0030);
- for (i = loop1_done - 8; i < 16; i++) {
- b43legacy_phy_write(dev, 0x0812,
- (b43legacy_phy_read(dev, 0x0812)
- & 0xF0FF) | (i << 8));
- b43legacy_phy_write(dev, 0x0015,
- (b43legacy_phy_read(dev, 0x0015)
- & 0x0FFF) | 0xA000);
- b43legacy_phy_write(dev, 0x0015,
- (b43legacy_phy_read(dev, 0x0015)
- & 0x0FFF) | 0xF000);
- udelay(20);
- if (b43legacy_phy_read(dev, 0x002D) >= 0x0DFC)
- break;
- }
- }
-
- if (phy->rev != 1) {
- b43legacy_phy_write(dev, 0x0814, backup_phy[4]);
- b43legacy_phy_write(dev, 0x0815, backup_phy[5]);
- }
- b43legacy_phy_write(dev, 0x005A, backup_phy[6]);
- b43legacy_phy_write(dev, 0x0059, backup_phy[7]);
- b43legacy_phy_write(dev, 0x0058, backup_phy[8]);
- b43legacy_phy_write(dev, 0x000A, backup_phy[9]);
- b43legacy_phy_write(dev, 0x0003, backup_phy[10]);
- b43legacy_phy_write(dev, 0x080F, backup_phy[11]);
- b43legacy_phy_write(dev, 0x0810, backup_phy[12]);
- b43legacy_phy_write(dev, 0x002B, backup_phy[13]);
- b43legacy_phy_write(dev, 0x0015, backup_phy[14]);
-
- b43legacy_phy_set_baseband_attenuation(dev, backup_bband);
-
- b43legacy_radio_write16(dev, 0x0052, backup_radio[0]);
- b43legacy_radio_write16(dev, 0x0043, backup_radio[1]);
- b43legacy_radio_write16(dev, 0x007A, backup_radio[2]);
-
- b43legacy_phy_write(dev, 0x0811, backup_phy[2] | 0x0003);
- udelay(10);
- b43legacy_phy_write(dev, 0x0811, backup_phy[2]);
- b43legacy_phy_write(dev, 0x0812, backup_phy[3]);
- b43legacy_phy_write(dev, 0x0429, backup_phy[0]);
- b43legacy_phy_write(dev, 0x0001, backup_phy[1]);
-
- phy->loopback_gain[0] = ((loop1_done * 6) - (loop1_omitted * 4)) - 11;
- phy->loopback_gain[1] = (24 - (3 * loop2_done)) * 2;
-}
-
-static void b43legacy_phy_initg(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 tmp;
-
- if (phy->rev == 1)
- b43legacy_phy_initb5(dev);
- else
- b43legacy_phy_initb6(dev);
- if (phy->rev >= 2 && phy->gmode)
- b43legacy_phy_inita(dev);
-
- if (phy->rev >= 2) {
- b43legacy_phy_write(dev, 0x0814, 0x0000);
- b43legacy_phy_write(dev, 0x0815, 0x0000);
- }
- if (phy->rev == 2) {
- b43legacy_phy_write(dev, 0x0811, 0x0000);
- b43legacy_phy_write(dev, 0x0015, 0x00C0);
- }
- if (phy->rev > 5) {
- b43legacy_phy_write(dev, 0x0811, 0x0400);
- b43legacy_phy_write(dev, 0x0015, 0x00C0);
- }
- if (phy->gmode) {
- tmp = b43legacy_phy_read(dev, 0x0400) & 0xFF;
- if (tmp == 3) {
- b43legacy_phy_write(dev, 0x04C2, 0x1816);
- b43legacy_phy_write(dev, 0x04C3, 0x8606);
- }
- if (tmp == 4 || tmp == 5) {
- b43legacy_phy_write(dev, 0x04C2, 0x1816);
- b43legacy_phy_write(dev, 0x04C3, 0x8006);
- b43legacy_phy_write(dev, 0x04CC,
- (b43legacy_phy_read(dev,
- 0x04CC) & 0x00FF) |
- 0x1F00);
- }
- if (phy->rev >= 2)
- b43legacy_phy_write(dev, 0x047E, 0x0078);
- }
- if (phy->radio_rev == 8) {
- b43legacy_phy_write(dev, 0x0801, b43legacy_phy_read(dev, 0x0801)
- | 0x0080);
- b43legacy_phy_write(dev, 0x043E, b43legacy_phy_read(dev, 0x043E)
- | 0x0004);
- }
- if (phy->rev >= 2 && phy->gmode)
- b43legacy_calc_loopback_gain(dev);
- if (phy->radio_rev != 8) {
- if (phy->initval == 0xFFFF)
- phy->initval = b43legacy_radio_init2050(dev);
- else
- b43legacy_radio_write16(dev, 0x0078, phy->initval);
- }
- if (phy->txctl2 == 0xFFFF)
- b43legacy_phy_lo_g_measure(dev);
- else {
- if (phy->radio_ver == 0x2050 && phy->radio_rev == 8)
- b43legacy_radio_write16(dev, 0x0052,
- (phy->txctl1 << 4) |
- phy->txctl2);
- else
- b43legacy_radio_write16(dev, 0x0052,
- (b43legacy_radio_read16(dev,
- 0x0052) & 0xFFF0) |
- phy->txctl1);
- if (phy->rev >= 6)
- b43legacy_phy_write(dev, 0x0036,
- (b43legacy_phy_read(dev, 0x0036)
- & 0x0FFF) | (phy->txctl2 << 12));
- if (dev->dev->bus->sprom.boardflags_lo &
- B43legacy_BFL_PACTRL)
- b43legacy_phy_write(dev, 0x002E, 0x8075);
- else
- b43legacy_phy_write(dev, 0x002E, 0x807F);
- if (phy->rev < 2)
- b43legacy_phy_write(dev, 0x002F, 0x0101);
- else
- b43legacy_phy_write(dev, 0x002F, 0x0202);
- }
- if (phy->gmode) {
- b43legacy_phy_lo_adjust(dev, 0);
- b43legacy_phy_write(dev, 0x080F, 0x8078);
- }
-
- if (!(dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_RSSI)) {
- /* The specs state to update the NRSSI LT with
- * the value 0x7FFFFFFF here. I think that is some weird
- * compiler optimization in the original driver.
- * Essentially, what we do here is resetting all NRSSI LT
- * entries to -32 (see the clamp_val() in nrssi_hw_update())
- */
- b43legacy_nrssi_hw_update(dev, 0xFFFF);
- b43legacy_calc_nrssi_threshold(dev);
- } else if (phy->gmode || phy->rev >= 2) {
- if (phy->nrssi[0] == -1000) {
- B43legacy_WARN_ON(phy->nrssi[1] != -1000);
- b43legacy_calc_nrssi_slope(dev);
- } else {
- B43legacy_WARN_ON(phy->nrssi[1] == -1000);
- b43legacy_calc_nrssi_threshold(dev);
- }
- }
- if (phy->radio_rev == 8)
- b43legacy_phy_write(dev, 0x0805, 0x3230);
- b43legacy_phy_init_pctl(dev);
- if (dev->dev->bus->chip_id == 0x4306
- && dev->dev->bus->chip_package == 2) {
- b43legacy_phy_write(dev, 0x0429,
- b43legacy_phy_read(dev, 0x0429) & 0xBFFF);
- b43legacy_phy_write(dev, 0x04C3,
- b43legacy_phy_read(dev, 0x04C3) & 0x7FFF);
- }
-}
-
-static u16 b43legacy_phy_lo_b_r15_loop(struct b43legacy_wldev *dev)
-{
- int i;
- u16 ret = 0;
- unsigned long flags;
-
- local_irq_save(flags);
- for (i = 0; i < 10; i++) {
- b43legacy_phy_write(dev, 0x0015, 0xAFA0);
- udelay(1);
- b43legacy_phy_write(dev, 0x0015, 0xEFA0);
- udelay(10);
- b43legacy_phy_write(dev, 0x0015, 0xFFA0);
- udelay(40);
- ret += b43legacy_phy_read(dev, 0x002C);
- }
- local_irq_restore(flags);
- b43legacy_voluntary_preempt();
-
- return ret;
-}
-
-void b43legacy_phy_lo_b_measure(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 regstack[12] = { 0 };
- u16 mls;
- u16 fval;
- int i;
- int j;
-
- regstack[0] = b43legacy_phy_read(dev, 0x0015);
- regstack[1] = b43legacy_radio_read16(dev, 0x0052) & 0xFFF0;
-
- if (phy->radio_ver == 0x2053) {
- regstack[2] = b43legacy_phy_read(dev, 0x000A);
- regstack[3] = b43legacy_phy_read(dev, 0x002A);
- regstack[4] = b43legacy_phy_read(dev, 0x0035);
- regstack[5] = b43legacy_phy_read(dev, 0x0003);
- regstack[6] = b43legacy_phy_read(dev, 0x0001);
- regstack[7] = b43legacy_phy_read(dev, 0x0030);
-
- regstack[8] = b43legacy_radio_read16(dev, 0x0043);
- regstack[9] = b43legacy_radio_read16(dev, 0x007A);
- regstack[10] = b43legacy_read16(dev, 0x03EC);
- regstack[11] = b43legacy_radio_read16(dev, 0x0052) & 0x00F0;
-
- b43legacy_phy_write(dev, 0x0030, 0x00FF);
- b43legacy_write16(dev, 0x03EC, 0x3F3F);
- b43legacy_phy_write(dev, 0x0035, regstack[4] & 0xFF7F);
- b43legacy_radio_write16(dev, 0x007A, regstack[9] & 0xFFF0);
- }
- b43legacy_phy_write(dev, 0x0015, 0xB000);
- b43legacy_phy_write(dev, 0x002B, 0x0004);
-
- if (phy->radio_ver == 0x2053) {
- b43legacy_phy_write(dev, 0x002B, 0x0203);
- b43legacy_phy_write(dev, 0x002A, 0x08A3);
- }
-
- phy->minlowsig[0] = 0xFFFF;
-
- for (i = 0; i < 4; i++) {
- b43legacy_radio_write16(dev, 0x0052, regstack[1] | i);
- b43legacy_phy_lo_b_r15_loop(dev);
- }
- for (i = 0; i < 10; i++) {
- b43legacy_radio_write16(dev, 0x0052, regstack[1] | i);
- mls = b43legacy_phy_lo_b_r15_loop(dev) / 10;
- if (mls < phy->minlowsig[0]) {
- phy->minlowsig[0] = mls;
- phy->minlowsigpos[0] = i;
- }
- }
- b43legacy_radio_write16(dev, 0x0052, regstack[1]
- | phy->minlowsigpos[0]);
-
- phy->minlowsig[1] = 0xFFFF;
-
- for (i = -4; i < 5; i += 2) {
- for (j = -4; j < 5; j += 2) {
- if (j < 0)
- fval = (0x0100 * i) + j + 0x0100;
- else
- fval = (0x0100 * i) + j;
- b43legacy_phy_write(dev, 0x002F, fval);
- mls = b43legacy_phy_lo_b_r15_loop(dev) / 10;
- if (mls < phy->minlowsig[1]) {
- phy->minlowsig[1] = mls;
- phy->minlowsigpos[1] = fval;
- }
- }
- }
- phy->minlowsigpos[1] += 0x0101;
-
- b43legacy_phy_write(dev, 0x002F, phy->minlowsigpos[1]);
- if (phy->radio_ver == 0x2053) {
- b43legacy_phy_write(dev, 0x000A, regstack[2]);
- b43legacy_phy_write(dev, 0x002A, regstack[3]);
- b43legacy_phy_write(dev, 0x0035, regstack[4]);
- b43legacy_phy_write(dev, 0x0003, regstack[5]);
- b43legacy_phy_write(dev, 0x0001, regstack[6]);
- b43legacy_phy_write(dev, 0x0030, regstack[7]);
-
- b43legacy_radio_write16(dev, 0x0043, regstack[8]);
- b43legacy_radio_write16(dev, 0x007A, regstack[9]);
-
- b43legacy_radio_write16(dev, 0x0052,
- (b43legacy_radio_read16(dev, 0x0052)
- & 0x000F) | regstack[11]);
-
- b43legacy_write16(dev, 0x03EC, regstack[10]);
- }
- b43legacy_phy_write(dev, 0x0015, regstack[0]);
-}
-
-static inline
-u16 b43legacy_phy_lo_g_deviation_subval(struct b43legacy_wldev *dev,
- u16 control)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 ret;
- unsigned long flags;
-
- local_irq_save(flags);
- if (phy->gmode) {
- b43legacy_phy_write(dev, 0x15, 0xE300);
- control <<= 8;
- b43legacy_phy_write(dev, 0x0812, control | 0x00B0);
- udelay(5);
- b43legacy_phy_write(dev, 0x0812, control | 0x00B2);
- udelay(2);
- b43legacy_phy_write(dev, 0x0812, control | 0x00B3);
- udelay(4);
- b43legacy_phy_write(dev, 0x0015, 0xF300);
- udelay(8);
- } else {
- b43legacy_phy_write(dev, 0x0015, control | 0xEFA0);
- udelay(2);
- b43legacy_phy_write(dev, 0x0015, control | 0xEFE0);
- udelay(4);
- b43legacy_phy_write(dev, 0x0015, control | 0xFFE0);
- udelay(8);
- }
- ret = b43legacy_phy_read(dev, 0x002D);
- local_irq_restore(flags);
- b43legacy_voluntary_preempt();
-
- return ret;
-}
-
-static u32 b43legacy_phy_lo_g_singledeviation(struct b43legacy_wldev *dev,
- u16 control)
-{
- int i;
- u32 ret = 0;
-
- for (i = 0; i < 8; i++)
- ret += b43legacy_phy_lo_g_deviation_subval(dev, control);
-
- return ret;
-}
-
-/* Write the LocalOscillator CONTROL */
-static inline
-void b43legacy_lo_write(struct b43legacy_wldev *dev,
- struct b43legacy_lopair *pair)
-{
- u16 value;
-
- value = (u8)(pair->low);
- value |= ((u8)(pair->high)) << 8;
-
-#ifdef CONFIG_B43LEGACY_DEBUG
- /* Sanity check. */
- if (pair->low < -8 || pair->low > 8 ||
- pair->high < -8 || pair->high > 8) {
- b43legacydbg(dev->wl,
- "WARNING: Writing invalid LOpair "
- "(low: %d, high: %d)\n",
- pair->low, pair->high);
- dump_stack();
- }
-#endif
-
- b43legacy_phy_write(dev, B43legacy_PHY_G_LO_CONTROL, value);
-}
-
-static inline
-struct b43legacy_lopair *b43legacy_find_lopair(struct b43legacy_wldev *dev,
- u16 bbatt,
- u16 rfatt,
- u16 tx)
-{
- static const u8 dict[10] = { 11, 10, 11, 12, 13, 12, 13, 12, 13, 12 };
- struct b43legacy_phy *phy = &dev->phy;
-
- if (bbatt > 6)
- bbatt = 6;
- B43legacy_WARN_ON(rfatt >= 10);
-
- if (tx == 3)
- return b43legacy_get_lopair(phy, rfatt, bbatt);
- return b43legacy_get_lopair(phy, dict[rfatt], bbatt);
-}
-
-static inline
-struct b43legacy_lopair *b43legacy_current_lopair(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
-
- return b43legacy_find_lopair(dev, phy->bbatt,
- phy->rfatt, phy->txctl1);
-}
-
-/* Adjust B/G LO */
-void b43legacy_phy_lo_adjust(struct b43legacy_wldev *dev, int fixed)
-{
- struct b43legacy_lopair *pair;
-
- if (fixed) {
- /* Use fixed values. Only for initialization. */
- pair = b43legacy_find_lopair(dev, 2, 3, 0);
- } else
- pair = b43legacy_current_lopair(dev);
- b43legacy_lo_write(dev, pair);
-}
-
-static void b43legacy_phy_lo_g_measure_txctl2(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 txctl2 = 0;
- u16 i;
- u32 smallest;
- u32 tmp;
-
- b43legacy_radio_write16(dev, 0x0052, 0x0000);
- udelay(10);
- smallest = b43legacy_phy_lo_g_singledeviation(dev, 0);
- for (i = 0; i < 16; i++) {
- b43legacy_radio_write16(dev, 0x0052, i);
- udelay(10);
- tmp = b43legacy_phy_lo_g_singledeviation(dev, 0);
- if (tmp < smallest) {
- smallest = tmp;
- txctl2 = i;
- }
- }
- phy->txctl2 = txctl2;
-}
-
-static
-void b43legacy_phy_lo_g_state(struct b43legacy_wldev *dev,
- const struct b43legacy_lopair *in_pair,
- struct b43legacy_lopair *out_pair,
- u16 r27)
-{
- static const struct b43legacy_lopair transitions[8] = {
- { .high = 1, .low = 1, },
- { .high = 1, .low = 0, },
- { .high = 1, .low = -1, },
- { .high = 0, .low = -1, },
- { .high = -1, .low = -1, },
- { .high = -1, .low = 0, },
- { .high = -1, .low = 1, },
- { .high = 0, .low = 1, },
- };
- struct b43legacy_lopair lowest_transition = {
- .high = in_pair->high,
- .low = in_pair->low,
- };
- struct b43legacy_lopair tmp_pair;
- struct b43legacy_lopair transition;
- int i = 12;
- int state = 0;
- int found_lower;
- int j;
- int begin;
- int end;
- u32 lowest_deviation;
- u32 tmp;
-
- /* Note that in_pair and out_pair can point to the same pair.
- * Be careful. */
-
- b43legacy_lo_write(dev, &lowest_transition);
- lowest_deviation = b43legacy_phy_lo_g_singledeviation(dev, r27);
- do {
- found_lower = 0;
- B43legacy_WARN_ON(!(state >= 0 && state <= 8));
- if (state == 0) {
- begin = 1;
- end = 8;
- } else if (state % 2 == 0) {
- begin = state - 1;
- end = state + 1;
- } else {
- begin = state - 2;
- end = state + 2;
- }
- if (begin < 1)
- begin += 8;
- if (end > 8)
- end -= 8;
-
- j = begin;
- tmp_pair.high = lowest_transition.high;
- tmp_pair.low = lowest_transition.low;
- while (1) {
- B43legacy_WARN_ON(!(j >= 1 && j <= 8));
- transition.high = tmp_pair.high +
- transitions[j - 1].high;
- transition.low = tmp_pair.low + transitions[j - 1].low;
- if ((abs(transition.low) < 9)
- && (abs(transition.high) < 9)) {
- b43legacy_lo_write(dev, &transition);
- tmp = b43legacy_phy_lo_g_singledeviation(dev,
- r27);
- if (tmp < lowest_deviation) {
- lowest_deviation = tmp;
- state = j;
- found_lower = 1;
-
- lowest_transition.high =
- transition.high;
- lowest_transition.low = transition.low;
- }
- }
- if (j == end)
- break;
- if (j == 8)
- j = 1;
- else
- j++;
- }
- } while (i-- && found_lower);
-
- out_pair->high = lowest_transition.high;
- out_pair->low = lowest_transition.low;
-}
-
-/* Set the baseband attenuation value on chip. */
-void b43legacy_phy_set_baseband_attenuation(struct b43legacy_wldev *dev,
- u16 bbatt)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 value;
-
- if (phy->analog == 0) {
- value = (b43legacy_read16(dev, 0x03E6) & 0xFFF0);
- value |= (bbatt & 0x000F);
- b43legacy_write16(dev, 0x03E6, value);
- return;
- }
-
- if (phy->analog > 1) {
- value = b43legacy_phy_read(dev, 0x0060) & 0xFFC3;
- value |= (bbatt << 2) & 0x003C;
- } else {
- value = b43legacy_phy_read(dev, 0x0060) & 0xFF87;
- value |= (bbatt << 3) & 0x0078;
- }
- b43legacy_phy_write(dev, 0x0060, value);
-}
-
-/* http://bcm-specs.sipsolutions.net/LocalOscillator/Measure */
-void b43legacy_phy_lo_g_measure(struct b43legacy_wldev *dev)
-{
- static const u8 pairorder[10] = { 3, 1, 5, 7, 9, 2, 0, 4, 6, 8 };
- const int is_initializing = (b43legacy_status(dev)
- < B43legacy_STAT_STARTED);
- struct b43legacy_phy *phy = &dev->phy;
- u16 h;
- u16 i;
- u16 oldi = 0;
- u16 j;
- struct b43legacy_lopair control;
- struct b43legacy_lopair *tmp_control;
- u16 tmp;
- u16 regstack[16] = { 0 };
- u8 oldchannel;
-
- /* XXX: What are these? */
- u8 r27 = 0;
- u16 r31;
-
- oldchannel = phy->channel;
- /* Setup */
- if (phy->gmode) {
- regstack[0] = b43legacy_phy_read(dev, B43legacy_PHY_G_CRS);
- regstack[1] = b43legacy_phy_read(dev, 0x0802);
- b43legacy_phy_write(dev, B43legacy_PHY_G_CRS, regstack[0]
- & 0x7FFF);
- b43legacy_phy_write(dev, 0x0802, regstack[1] & 0xFFFC);
- }
- regstack[3] = b43legacy_read16(dev, 0x03E2);
- b43legacy_write16(dev, 0x03E2, regstack[3] | 0x8000);
- regstack[4] = b43legacy_read16(dev, B43legacy_MMIO_CHANNEL_EXT);
- regstack[5] = b43legacy_phy_read(dev, 0x15);
- regstack[6] = b43legacy_phy_read(dev, 0x2A);
- regstack[7] = b43legacy_phy_read(dev, 0x35);
- regstack[8] = b43legacy_phy_read(dev, 0x60);
- regstack[9] = b43legacy_radio_read16(dev, 0x43);
- regstack[10] = b43legacy_radio_read16(dev, 0x7A);
- regstack[11] = b43legacy_radio_read16(dev, 0x52);
- if (phy->gmode) {
- regstack[12] = b43legacy_phy_read(dev, 0x0811);
- regstack[13] = b43legacy_phy_read(dev, 0x0812);
- regstack[14] = b43legacy_phy_read(dev, 0x0814);
- regstack[15] = b43legacy_phy_read(dev, 0x0815);
- }
- b43legacy_radio_selectchannel(dev, 6, 0);
- if (phy->gmode) {
- b43legacy_phy_write(dev, B43legacy_PHY_G_CRS, regstack[0]
- & 0x7FFF);
- b43legacy_phy_write(dev, 0x0802, regstack[1] & 0xFFFC);
- b43legacy_dummy_transmission(dev);
- }
- b43legacy_radio_write16(dev, 0x0043, 0x0006);
-
- b43legacy_phy_set_baseband_attenuation(dev, 2);
-
- b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, 0x0000);
- b43legacy_phy_write(dev, 0x002E, 0x007F);
- b43legacy_phy_write(dev, 0x080F, 0x0078);
- b43legacy_phy_write(dev, 0x0035, regstack[7] & ~(1 << 7));
- b43legacy_radio_write16(dev, 0x007A, regstack[10] & 0xFFF0);
- b43legacy_phy_write(dev, 0x002B, 0x0203);
- b43legacy_phy_write(dev, 0x002A, 0x08A3);
- if (phy->gmode) {
- b43legacy_phy_write(dev, 0x0814, regstack[14] | 0x0003);
- b43legacy_phy_write(dev, 0x0815, regstack[15] & 0xFFFC);
- b43legacy_phy_write(dev, 0x0811, 0x01B3);
- b43legacy_phy_write(dev, 0x0812, 0x00B2);
- }
- if (is_initializing)
- b43legacy_phy_lo_g_measure_txctl2(dev);
- b43legacy_phy_write(dev, 0x080F, 0x8078);
-
- /* Measure */
- control.low = 0;
- control.high = 0;
- for (h = 0; h < 10; h++) {
- /* Loop over each possible RadioAttenuation (0-9) */
- i = pairorder[h];
- if (is_initializing) {
- if (i == 3) {
- control.low = 0;
- control.high = 0;
- } else if (((i % 2 == 1) && (oldi % 2 == 1)) ||
- ((i % 2 == 0) && (oldi % 2 == 0))) {
- tmp_control = b43legacy_get_lopair(phy, oldi,
- 0);
- memcpy(&control, tmp_control, sizeof(control));
- } else {
- tmp_control = b43legacy_get_lopair(phy, 3, 0);
- memcpy(&control, tmp_control, sizeof(control));
- }
- }
- /* Loop over each possible BasebandAttenuation/2 */
- for (j = 0; j < 4; j++) {
- if (is_initializing) {
- tmp = i * 2 + j;
- r27 = 0;
- r31 = 0;
- if (tmp > 14) {
- r31 = 1;
- if (tmp > 17)
- r27 = 1;
- if (tmp > 19)
- r27 = 2;
- }
- } else {
- tmp_control = b43legacy_get_lopair(phy, i,
- j * 2);
- if (!tmp_control->used)
- continue;
- memcpy(&control, tmp_control, sizeof(control));
- r27 = 3;
- r31 = 0;
- }
- b43legacy_radio_write16(dev, 0x43, i);
- b43legacy_radio_write16(dev, 0x52, phy->txctl2);
- udelay(10);
- b43legacy_voluntary_preempt();
-
- b43legacy_phy_set_baseband_attenuation(dev, j * 2);
-
- tmp = (regstack[10] & 0xFFF0);
- if (r31)
- tmp |= 0x0008;
- b43legacy_radio_write16(dev, 0x007A, tmp);
-
- tmp_control = b43legacy_get_lopair(phy, i, j * 2);
- b43legacy_phy_lo_g_state(dev, &control, tmp_control,
- r27);
- }
- oldi = i;
- }
- /* Loop over each possible RadioAttenuation (10-13) */
- for (i = 10; i < 14; i++) {
- /* Loop over each possible BasebandAttenuation/2 */
- for (j = 0; j < 4; j++) {
- if (is_initializing) {
- tmp_control = b43legacy_get_lopair(phy, i - 9,
- j * 2);
- memcpy(&control, tmp_control, sizeof(control));
- /* FIXME: The next line is wrong, as the
- * following if statement can never trigger. */
- tmp = (i - 9) * 2 + j - 5;
- r27 = 0;
- r31 = 0;
- if (tmp > 14) {
- r31 = 1;
- if (tmp > 17)
- r27 = 1;
- if (tmp > 19)
- r27 = 2;
- }
- } else {
- tmp_control = b43legacy_get_lopair(phy, i - 9,
- j * 2);
- if (!tmp_control->used)
- continue;
- memcpy(&control, tmp_control, sizeof(control));
- r27 = 3;
- r31 = 0;
- }
- b43legacy_radio_write16(dev, 0x43, i - 9);
- /* FIXME: shouldn't txctl1 be zero in the next line
- * and 3 in the loop above? */
- b43legacy_radio_write16(dev, 0x52,
- phy->txctl2
- | (3/*txctl1*/ << 4));
- udelay(10);
- b43legacy_voluntary_preempt();
-
- b43legacy_phy_set_baseband_attenuation(dev, j * 2);
-
- tmp = (regstack[10] & 0xFFF0);
- if (r31)
- tmp |= 0x0008;
- b43legacy_radio_write16(dev, 0x7A, tmp);
-
- tmp_control = b43legacy_get_lopair(phy, i, j * 2);
- b43legacy_phy_lo_g_state(dev, &control, tmp_control,
- r27);
- }
- }
-
- /* Restoration */
- if (phy->gmode) {
- b43legacy_phy_write(dev, 0x0015, 0xE300);
- b43legacy_phy_write(dev, 0x0812, (r27 << 8) | 0xA0);
- udelay(5);
- b43legacy_phy_write(dev, 0x0812, (r27 << 8) | 0xA2);
- udelay(2);
- b43legacy_phy_write(dev, 0x0812, (r27 << 8) | 0xA3);
- b43legacy_voluntary_preempt();
- } else
- b43legacy_phy_write(dev, 0x0015, r27 | 0xEFA0);
- b43legacy_phy_lo_adjust(dev, is_initializing);
- b43legacy_phy_write(dev, 0x002E, 0x807F);
- if (phy->gmode)
- b43legacy_phy_write(dev, 0x002F, 0x0202);
- else
- b43legacy_phy_write(dev, 0x002F, 0x0101);
- b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, regstack[4]);
- b43legacy_phy_write(dev, 0x0015, regstack[5]);
- b43legacy_phy_write(dev, 0x002A, regstack[6]);
- b43legacy_phy_write(dev, 0x0035, regstack[7]);
- b43legacy_phy_write(dev, 0x0060, regstack[8]);
- b43legacy_radio_write16(dev, 0x0043, regstack[9]);
- b43legacy_radio_write16(dev, 0x007A, regstack[10]);
- regstack[11] &= 0x00F0;
- regstack[11] |= (b43legacy_radio_read16(dev, 0x52) & 0x000F);
- b43legacy_radio_write16(dev, 0x52, regstack[11]);
- b43legacy_write16(dev, 0x03E2, regstack[3]);
- if (phy->gmode) {
- b43legacy_phy_write(dev, 0x0811, regstack[12]);
- b43legacy_phy_write(dev, 0x0812, regstack[13]);
- b43legacy_phy_write(dev, 0x0814, regstack[14]);
- b43legacy_phy_write(dev, 0x0815, regstack[15]);
- b43legacy_phy_write(dev, B43legacy_PHY_G_CRS, regstack[0]);
- b43legacy_phy_write(dev, 0x0802, regstack[1]);
- }
- b43legacy_radio_selectchannel(dev, oldchannel, 1);
-
-#ifdef CONFIG_B43LEGACY_DEBUG
- {
- /* Sanity check for all lopairs. */
- for (i = 0; i < B43legacy_LO_COUNT; i++) {
- tmp_control = phy->_lo_pairs + i;
- if (tmp_control->low < -8 || tmp_control->low > 8 ||
- tmp_control->high < -8 || tmp_control->high > 8)
- b43legacywarn(dev->wl,
- "WARNING: Invalid LOpair (low: %d, high:"
- " %d, index: %d)\n",
- tmp_control->low, tmp_control->high, i);
- }
- }
-#endif /* CONFIG_B43LEGACY_DEBUG */
-}
-
-static
-void b43legacy_phy_lo_mark_current_used(struct b43legacy_wldev *dev)
-{
- struct b43legacy_lopair *pair;
-
- pair = b43legacy_current_lopair(dev);
- pair->used = 1;
-}
-
-void b43legacy_phy_lo_mark_all_unused(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- struct b43legacy_lopair *pair;
- int i;
-
- for (i = 0; i < B43legacy_LO_COUNT; i++) {
- pair = phy->_lo_pairs + i;
- pair->used = 0;
- }
-}
-
-/* http://bcm-specs.sipsolutions.net/EstimatePowerOut
- * This function converts a TSSI value to dBm in Q5.2
- */
-static s8 b43legacy_phy_estimate_power_out(struct b43legacy_wldev *dev, s8 tssi)
-{
- struct b43legacy_phy *phy = &dev->phy;
- s8 dbm = 0;
- s32 tmp;
-
- tmp = phy->idle_tssi;
- tmp += tssi;
- tmp -= phy->savedpctlreg;
-
- switch (phy->type) {
- case B43legacy_PHYTYPE_B:
- case B43legacy_PHYTYPE_G:
- tmp = clamp_val(tmp, 0x00, 0x3F);
- dbm = phy->tssi2dbm[tmp];
- break;
- default:
- B43legacy_BUG_ON(1);
- }
-
- return dbm;
-}
-
-/* http://bcm-specs.sipsolutions.net/RecalculateTransmissionPower */
-void b43legacy_phy_xmitpower(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 tmp;
- u16 txpower;
- s8 v0;
- s8 v1;
- s8 v2;
- s8 v3;
- s8 average;
- int max_pwr;
- s16 desired_pwr;
- s16 estimated_pwr;
- s16 pwr_adjust;
- s16 radio_att_delta;
- s16 baseband_att_delta;
- s16 radio_attenuation;
- s16 baseband_attenuation;
-
- if (phy->savedpctlreg == 0xFFFF)
- return;
- if ((dev->dev->bus->boardinfo.type == 0x0416) &&
- is_bcm_board_vendor(dev))
- return;
-#ifdef CONFIG_B43LEGACY_DEBUG
- if (phy->manual_txpower_control)
- return;
-#endif
-
- B43legacy_BUG_ON(!(phy->type == B43legacy_PHYTYPE_B ||
- phy->type == B43legacy_PHYTYPE_G));
- tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x0058);
- v0 = (s8)(tmp & 0x00FF);
- v1 = (s8)((tmp & 0xFF00) >> 8);
- tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x005A);
- v2 = (s8)(tmp & 0x00FF);
- v3 = (s8)((tmp & 0xFF00) >> 8);
- tmp = 0;
-
- if (v0 == 0x7F || v1 == 0x7F || v2 == 0x7F || v3 == 0x7F) {
- tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- 0x0070);
- v0 = (s8)(tmp & 0x00FF);
- v1 = (s8)((tmp & 0xFF00) >> 8);
- tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- 0x0072);
- v2 = (s8)(tmp & 0x00FF);
- v3 = (s8)((tmp & 0xFF00) >> 8);
- if (v0 == 0x7F || v1 == 0x7F || v2 == 0x7F || v3 == 0x7F)
- return;
- v0 = (v0 + 0x20) & 0x3F;
- v1 = (v1 + 0x20) & 0x3F;
- v2 = (v2 + 0x20) & 0x3F;
- v3 = (v3 + 0x20) & 0x3F;
- tmp = 1;
- }
- b43legacy_radio_clear_tssi(dev);
-
- average = (v0 + v1 + v2 + v3 + 2) / 4;
-
- if (tmp && (b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x005E)
- & 0x8))
- average -= 13;
-
- estimated_pwr = b43legacy_phy_estimate_power_out(dev, average);
-
- max_pwr = dev->dev->bus->sprom.maxpwr_bg;
-
- if ((dev->dev->bus->sprom.boardflags_lo
- & B43legacy_BFL_PACTRL) &&
- (phy->type == B43legacy_PHYTYPE_G))
- max_pwr -= 0x3;
- if (unlikely(max_pwr <= 0)) {
- b43legacywarn(dev->wl, "Invalid max-TX-power value in SPROM."
- "\n");
- max_pwr = 74; /* fake it */
- dev->dev->bus->sprom.maxpwr_bg = max_pwr;
- }
-
- /* Use regulatory information to get the maximum power.
- * In the absence of such data from mac80211, we will use 20 dBm, which
- * is the value for the EU, US, Canada, and most of the world.
- * The regulatory maximum is reduced by the antenna gain (from sprom)
- * and 1.5 dBm (a safety factor??). The result is in Q5.2 format
- * which accounts for the factor of 4 */
-#define REG_MAX_PWR 20
- max_pwr = min(REG_MAX_PWR * 4
- - dev->dev->bus->sprom.antenna_gain.a0
- - 0x6, max_pwr);
-
- /* find the desired power in Q5.2 - power_level is in dBm
- * and limit it - max_pwr is already in Q5.2 */
- desired_pwr = clamp_val(phy->power_level << 2, 0, max_pwr);
- if (b43legacy_debug(dev, B43legacy_DBG_XMITPOWER))
- b43legacydbg(dev->wl, "Current TX power output: " Q52_FMT
- " dBm, Desired TX power output: " Q52_FMT
- " dBm\n", Q52_ARG(estimated_pwr),
- Q52_ARG(desired_pwr));
- /* Check if we need to adjust the current power. The factor of 2 is
- * for damping */
- pwr_adjust = (desired_pwr - estimated_pwr) / 2;
- /* RF attenuation delta
- * The minus sign is because lower attenuation => more power */
- radio_att_delta = -(pwr_adjust + 7) >> 3;
- /* Baseband attenuation delta */
- baseband_att_delta = -(pwr_adjust >> 1) - (4 * radio_att_delta);
- /* Do we need to adjust anything? */
- if ((radio_att_delta == 0) && (baseband_att_delta == 0)) {
- b43legacy_phy_lo_mark_current_used(dev);
- return;
- }
-
- /* Calculate the new attenuation values. */
- baseband_attenuation = phy->bbatt;
- baseband_attenuation += baseband_att_delta;
- radio_attenuation = phy->rfatt;
- radio_attenuation += radio_att_delta;
-
- /* Get baseband and radio attenuation values into permitted ranges.
- * baseband 0-11, radio 0-9.
- * Radio attenuation affects power level 4 times as much as baseband.
- */
- if (radio_attenuation < 0) {
- baseband_attenuation -= (4 * -radio_attenuation);
- radio_attenuation = 0;
- } else if (radio_attenuation > 9) {
- baseband_attenuation += (4 * (radio_attenuation - 9));
- radio_attenuation = 9;
- } else {
- while (baseband_attenuation < 0 && radio_attenuation > 0) {
- baseband_attenuation += 4;
- radio_attenuation--;
- }
- while (baseband_attenuation > 11 && radio_attenuation < 9) {
- baseband_attenuation -= 4;
- radio_attenuation++;
- }
- }
- baseband_attenuation = clamp_val(baseband_attenuation, 0, 11);
-
- txpower = phy->txctl1;
- if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 2)) {
- if (radio_attenuation <= 1) {
- if (txpower == 0) {
- txpower = 3;
- radio_attenuation += 2;
- baseband_attenuation += 2;
- } else if (dev->dev->bus->sprom.boardflags_lo
- & B43legacy_BFL_PACTRL) {
- baseband_attenuation += 4 *
- (radio_attenuation - 2);
- radio_attenuation = 2;
- }
- } else if (radio_attenuation > 4 && txpower != 0) {
- txpower = 0;
- if (baseband_attenuation < 3) {
- radio_attenuation -= 3;
- baseband_attenuation += 2;
- } else {
- radio_attenuation -= 2;
- baseband_attenuation -= 2;
- }
- }
- }
- /* Save the control values */
- phy->txctl1 = txpower;
- baseband_attenuation = clamp_val(baseband_attenuation, 0, 11);
- radio_attenuation = clamp_val(radio_attenuation, 0, 9);
- phy->rfatt = radio_attenuation;
- phy->bbatt = baseband_attenuation;
-
- /* Adjust the hardware */
- b43legacy_phy_lock(dev);
- b43legacy_radio_lock(dev);
- b43legacy_radio_set_txpower_bg(dev, baseband_attenuation,
- radio_attenuation, txpower);
- b43legacy_phy_lo_mark_current_used(dev);
- b43legacy_radio_unlock(dev);
- b43legacy_phy_unlock(dev);
-}
-
-static inline
-s32 b43legacy_tssi2dbm_ad(s32 num, s32 den)
-{
- if (num < 0)
- return num/den;
- else
- return (num+den/2)/den;
-}
-
-static inline
-s8 b43legacy_tssi2dbm_entry(s8 entry [], u8 index, s16 pab0, s16 pab1, s16 pab2)
-{
- s32 m1;
- s32 m2;
- s32 f = 256;
- s32 q;
- s32 delta;
- s8 i = 0;
-
- m1 = b43legacy_tssi2dbm_ad(16 * pab0 + index * pab1, 32);
- m2 = max(b43legacy_tssi2dbm_ad(32768 + index * pab2, 256), 1);
- do {
- if (i > 15)
- return -EINVAL;
- q = b43legacy_tssi2dbm_ad(f * 4096 -
- b43legacy_tssi2dbm_ad(m2 * f, 16) *
- f, 2048);
- delta = abs(q - f);
- f = q;
- i++;
- } while (delta >= 2);
- entry[index] = clamp_val(b43legacy_tssi2dbm_ad(m1 * f, 8192),
- -127, 128);
- return 0;
-}
-
-/* http://bcm-specs.sipsolutions.net/TSSI_to_DBM_Table */
-int b43legacy_phy_init_tssi2dbm_table(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- s16 pab0;
- s16 pab1;
- s16 pab2;
- u8 idx;
- s8 *dyn_tssi2dbm;
-
- B43legacy_WARN_ON(!(phy->type == B43legacy_PHYTYPE_B ||
- phy->type == B43legacy_PHYTYPE_G));
- pab0 = (s16)(dev->dev->bus->sprom.pa0b0);
- pab1 = (s16)(dev->dev->bus->sprom.pa0b1);
- pab2 = (s16)(dev->dev->bus->sprom.pa0b2);
-
- if ((dev->dev->bus->chip_id == 0x4301) && (phy->radio_ver != 0x2050)) {
- phy->idle_tssi = 0x34;
- phy->tssi2dbm = b43legacy_tssi2dbm_b_table;
- return 0;
- }
-
- if (pab0 != 0 && pab1 != 0 && pab2 != 0 &&
- pab0 != -1 && pab1 != -1 && pab2 != -1) {
- /* The pabX values are set in SPROM. Use them. */
- if ((s8)dev->dev->bus->sprom.itssi_bg != 0 &&
- (s8)dev->dev->bus->sprom.itssi_bg != -1)
- phy->idle_tssi = (s8)(dev->dev->bus->sprom.
- itssi_bg);
- else
- phy->idle_tssi = 62;
- dyn_tssi2dbm = kmalloc(64, GFP_KERNEL);
- if (dyn_tssi2dbm == NULL) {
- b43legacyerr(dev->wl, "Could not allocate memory "
- "for tssi2dbm table\n");
- return -ENOMEM;
- }
- for (idx = 0; idx < 64; idx++)
- if (b43legacy_tssi2dbm_entry(dyn_tssi2dbm, idx, pab0,
- pab1, pab2)) {
- phy->tssi2dbm = NULL;
- b43legacyerr(dev->wl, "Could not generate "
- "tssi2dBm table\n");
- kfree(dyn_tssi2dbm);
- return -ENODEV;
- }
- phy->tssi2dbm = dyn_tssi2dbm;
- phy->dyn_tssi_tbl = 1;
- } else {
- /* pabX values not set in SPROM. */
- switch (phy->type) {
- case B43legacy_PHYTYPE_B:
- phy->idle_tssi = 0x34;
- phy->tssi2dbm = b43legacy_tssi2dbm_b_table;
- break;
- case B43legacy_PHYTYPE_G:
- phy->idle_tssi = 0x34;
- phy->tssi2dbm = b43legacy_tssi2dbm_g_table;
- break;
- }
- }
-
- return 0;
-}
-
-int b43legacy_phy_init(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- int err = -ENODEV;
-
- switch (phy->type) {
- case B43legacy_PHYTYPE_B:
- switch (phy->rev) {
- case 2:
- b43legacy_phy_initb2(dev);
- err = 0;
- break;
- case 4:
- b43legacy_phy_initb4(dev);
- err = 0;
- break;
- case 5:
- b43legacy_phy_initb5(dev);
- err = 0;
- break;
- case 6:
- b43legacy_phy_initb6(dev);
- err = 0;
- break;
- }
- break;
- case B43legacy_PHYTYPE_G:
- b43legacy_phy_initg(dev);
- err = 0;
- break;
- }
- if (err)
- b43legacyerr(dev->wl, "Unknown PHYTYPE found\n");
-
- return err;
-}
-
-void b43legacy_phy_set_antenna_diversity(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 antennadiv;
- u16 offset;
- u16 value;
- u32 ucodeflags;
-
- antennadiv = phy->antenna_diversity;
-
- if (antennadiv == 0xFFFF)
- antennadiv = 3;
- B43legacy_WARN_ON(antennadiv > 3);
-
- ucodeflags = b43legacy_shm_read32(dev, B43legacy_SHM_SHARED,
- B43legacy_UCODEFLAGS_OFFSET);
- b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
- B43legacy_UCODEFLAGS_OFFSET,
- ucodeflags & ~B43legacy_UCODEFLAG_AUTODIV);
-
- switch (phy->type) {
- case B43legacy_PHYTYPE_G:
- offset = 0x0400;
-
- if (antennadiv == 2)
- value = (3/*automatic*/ << 7);
- else
- value = (antennadiv << 7);
- b43legacy_phy_write(dev, offset + 1,
- (b43legacy_phy_read(dev, offset + 1)
- & 0x7E7F) | value);
-
- if (antennadiv >= 2) {
- if (antennadiv == 2)
- value = (antennadiv << 7);
- else
- value = (0/*force0*/ << 7);
- b43legacy_phy_write(dev, offset + 0x2B,
- (b43legacy_phy_read(dev,
- offset + 0x2B)
- & 0xFEFF) | value);
- }
-
- if (phy->type == B43legacy_PHYTYPE_G) {
- if (antennadiv >= 2)
- b43legacy_phy_write(dev, 0x048C,
- b43legacy_phy_read(dev,
- 0x048C) | 0x2000);
- else
- b43legacy_phy_write(dev, 0x048C,
- b43legacy_phy_read(dev,
- 0x048C) & ~0x2000);
- if (phy->rev >= 2) {
- b43legacy_phy_write(dev, 0x0461,
- b43legacy_phy_read(dev,
- 0x0461) | 0x0010);
- b43legacy_phy_write(dev, 0x04AD,
- (b43legacy_phy_read(dev,
- 0x04AD)
- & 0x00FF) | 0x0015);
- if (phy->rev == 2)
- b43legacy_phy_write(dev, 0x0427,
- 0x0008);
- else
- b43legacy_phy_write(dev, 0x0427,
- (b43legacy_phy_read(dev, 0x0427)
- & 0x00FF) | 0x0008);
- } else if (phy->rev >= 6)
- b43legacy_phy_write(dev, 0x049B, 0x00DC);
- } else {
- if (phy->rev < 3)
- b43legacy_phy_write(dev, 0x002B,
- (b43legacy_phy_read(dev,
- 0x002B) & 0x00FF)
- | 0x0024);
- else {
- b43legacy_phy_write(dev, 0x0061,
- b43legacy_phy_read(dev,
- 0x0061) | 0x0010);
- if (phy->rev == 3) {
- b43legacy_phy_write(dev, 0x0093,
- 0x001D);
- b43legacy_phy_write(dev, 0x0027,
- 0x0008);
- } else {
- b43legacy_phy_write(dev, 0x0093,
- 0x003A);
- b43legacy_phy_write(dev, 0x0027,
- (b43legacy_phy_read(dev, 0x0027)
- & 0x00FF) | 0x0008);
- }
- }
- }
- break;
- case B43legacy_PHYTYPE_B:
- if (dev->dev->id.revision == 2)
- value = (3/*automatic*/ << 7);
- else
- value = (antennadiv << 7);
- b43legacy_phy_write(dev, 0x03E2,
- (b43legacy_phy_read(dev, 0x03E2)
- & 0xFE7F) | value);
- break;
- default:
- B43legacy_WARN_ON(1);
- }
-
- if (antennadiv >= 2) {
- ucodeflags = b43legacy_shm_read32(dev, B43legacy_SHM_SHARED,
- B43legacy_UCODEFLAGS_OFFSET);
- b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
- B43legacy_UCODEFLAGS_OFFSET,
- ucodeflags | B43legacy_UCODEFLAG_AUTODIV);
- }
-
- phy->antenna_diversity = antennadiv;
-}
-
-/* Set the PowerSavingControlBits.
- * Bitvalues:
- * 0 => unset the bit
- * 1 => set the bit
- * -1 => calculate the bit
- */
-void b43legacy_power_saving_ctl_bits(struct b43legacy_wldev *dev,
- int bit25, int bit26)
-{
- int i;
- u32 status;
-
-/* FIXME: Force 25 to off and 26 to on for now: */
-bit25 = 0;
-bit26 = 1;
-
- if (bit25 == -1) {
- /* TODO: If powersave is not off and FIXME is not set and we
- * are not in adhoc and thus is not an AP and we arei
- * associated, set bit 25 */
- }
- if (bit26 == -1) {
- /* TODO: If the device is awake or this is an AP, or we are
- * scanning, or FIXME, or we are associated, or FIXME,
- * or the latest PS-Poll packet sent was successful,
- * set bit26 */
- }
- status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- if (bit25)
- status |= B43legacy_MACCTL_HWPS;
- else
- status &= ~B43legacy_MACCTL_HWPS;
- if (bit26)
- status |= B43legacy_MACCTL_AWAKE;
- else
- status &= ~B43legacy_MACCTL_AWAKE;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, status);
- if (bit26 && dev->dev->id.revision >= 5) {
- for (i = 0; i < 100; i++) {
- if (b43legacy_shm_read32(dev, B43legacy_SHM_SHARED,
- 0x0040) != 4)
- break;
- udelay(10);
- }
- }
-}
+++ /dev/null
-/*
-
- Broadcom B43legacy wireless driver
-
- Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
- Stefano Brivio <stefano.brivio@polimi.it>
- Michael Buesch <m@bues.ch>
- Danny van Dyk <kugelfang@gentoo.org>
- Andreas Jaggi <andreas.jaggi@waterwave.ch>
- Copyright (c) 2007 Larry Finger <Larry.Finger@lwfinger.net>
-
- Some parts of the code in this file are derived from the ipw2200
- driver Copyright(c) 2003 - 2004 Intel Corporation.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
- Boston, MA 02110-1301, USA.
-
-*/
-
-#ifndef B43legacy_PHY_H_
-#define B43legacy_PHY_H_
-
-#include <linux/types.h>
-
-enum {
- B43legacy_ANTENNA0, /* Antenna 0 */
- B43legacy_ANTENNA1, /* Antenna 0 */
- B43legacy_ANTENNA_AUTO1, /* Automatic, starting with antenna 1 */
- B43legacy_ANTENNA_AUTO0, /* Automatic, starting with antenna 0 */
-
- B43legacy_ANTENNA_AUTO = B43legacy_ANTENNA_AUTO0,
- B43legacy_ANTENNA_DEFAULT = B43legacy_ANTENNA_AUTO,
-};
-
-enum {
- B43legacy_INTERFMODE_NONE,
- B43legacy_INTERFMODE_NONWLAN,
- B43legacy_INTERFMODE_MANUALWLAN,
- B43legacy_INTERFMODE_AUTOWLAN,
-};
-
-/*** PHY Registers ***/
-
-/* Routing */
-#define B43legacy_PHYROUTE_OFDM_GPHY 0x400
-#define B43legacy_PHYROUTE_EXT_GPHY 0x800
-
-/* Base registers. */
-#define B43legacy_PHY_BASE(reg) (reg)
-/* OFDM (A) registers of a G-PHY */
-#define B43legacy_PHY_OFDM(reg) ((reg) | B43legacy_PHYROUTE_OFDM_GPHY)
-/* Extended G-PHY registers */
-#define B43legacy_PHY_EXTG(reg) ((reg) | B43legacy_PHYROUTE_EXT_GPHY)
-
-
-/* Extended G-PHY Registers */
-#define B43legacy_PHY_CLASSCTL B43legacy_PHY_EXTG(0x02) /* Classify control */
-#define B43legacy_PHY_GTABCTL B43legacy_PHY_EXTG(0x03) /* G-PHY table control (see below) */
-#define B43legacy_PHY_GTABOFF 0x03FF /* G-PHY table offset (see below) */
-#define B43legacy_PHY_GTABNR 0xFC00 /* G-PHY table number (see below) */
-#define B43legacy_PHY_GTABNR_SHIFT 10
-#define B43legacy_PHY_GTABDATA B43legacy_PHY_EXTG(0x04) /* G-PHY table data */
-#define B43legacy_PHY_LO_MASK B43legacy_PHY_EXTG(0x0F) /* Local Oscillator control mask */
-#define B43legacy_PHY_LO_CTL B43legacy_PHY_EXTG(0x10) /* Local Oscillator control */
-#define B43legacy_PHY_RFOVER B43legacy_PHY_EXTG(0x11) /* RF override */
-#define B43legacy_PHY_RFOVERVAL B43legacy_PHY_EXTG(0x12) /* RF override value */
-/*** OFDM table numbers ***/
-#define B43legacy_OFDMTAB(number, offset) \
- (((number) << B43legacy_PHY_OTABLENR_SHIFT) \
- | (offset))
-#define B43legacy_OFDMTAB_AGC1 B43legacy_OFDMTAB(0x00, 0)
-#define B43legacy_OFDMTAB_GAIN0 B43legacy_OFDMTAB(0x00, 0)
-#define B43legacy_OFDMTAB_GAINX B43legacy_OFDMTAB(0x01, 0)
-#define B43legacy_OFDMTAB_GAIN1 B43legacy_OFDMTAB(0x01, 4)
-#define B43legacy_OFDMTAB_AGC3 B43legacy_OFDMTAB(0x02, 0)
-#define B43legacy_OFDMTAB_GAIN2 B43legacy_OFDMTAB(0x02, 3)
-#define B43legacy_OFDMTAB_LNAHPFGAIN1 B43legacy_OFDMTAB(0x03, 0)
-#define B43legacy_OFDMTAB_WRSSI B43legacy_OFDMTAB(0x04, 0)
-#define B43legacy_OFDMTAB_LNAHPFGAIN2 B43legacy_OFDMTAB(0x04, 0)
-#define B43legacy_OFDMTAB_NOISESCALE B43legacy_OFDMTAB(0x05, 0)
-#define B43legacy_OFDMTAB_AGC2 B43legacy_OFDMTAB(0x06, 0)
-#define B43legacy_OFDMTAB_ROTOR B43legacy_OFDMTAB(0x08, 0)
-#define B43legacy_OFDMTAB_ADVRETARD B43legacy_OFDMTAB(0x09, 0)
-#define B43legacy_OFDMTAB_DAC B43legacy_OFDMTAB(0x0C, 0)
-#define B43legacy_OFDMTAB_DC B43legacy_OFDMTAB(0x0E, 7)
-#define B43legacy_OFDMTAB_PWRDYN2 B43legacy_OFDMTAB(0x0E, 12)
-#define B43legacy_OFDMTAB_LNAGAIN B43legacy_OFDMTAB(0x0E, 13)
-
-#define B43legacy_OFDMTAB_LPFGAIN B43legacy_OFDMTAB(0x0F, 12)
-#define B43legacy_OFDMTAB_RSSI B43legacy_OFDMTAB(0x10, 0)
-
-#define B43legacy_OFDMTAB_AGC1_R1 B43legacy_OFDMTAB(0x13, 0)
-#define B43legacy_OFDMTAB_GAINX_R1 B43legacy_OFDMTAB(0x14, 0)
-#define B43legacy_OFDMTAB_MINSIGSQ B43legacy_OFDMTAB(0x14, 1)
-#define B43legacy_OFDMTAB_AGC3_R1 B43legacy_OFDMTAB(0x15, 0)
-#define B43legacy_OFDMTAB_WRSSI_R1 B43legacy_OFDMTAB(0x15, 4)
-#define B43legacy_OFDMTAB_TSSI B43legacy_OFDMTAB(0x15, 0)
-#define B43legacy_OFDMTAB_DACRFPABB B43legacy_OFDMTAB(0x16, 0)
-#define B43legacy_OFDMTAB_DACOFF B43legacy_OFDMTAB(0x17, 0)
-#define B43legacy_OFDMTAB_DCBIAS B43legacy_OFDMTAB(0x18, 0)
-
-void b43legacy_put_attenuation_into_ranges(int *_bbatt, int *_rfatt);
-
-/* OFDM (A) PHY Registers */
-#define B43legacy_PHY_VERSION_OFDM B43legacy_PHY_OFDM(0x00) /* Versioning register for A-PHY */
-#define B43legacy_PHY_BBANDCFG B43legacy_PHY_OFDM(0x01) /* Baseband config */
-#define B43legacy_PHY_BBANDCFG_RXANT 0x180 /* RX Antenna selection */
-#define B43legacy_PHY_BBANDCFG_RXANT_SHIFT 7
-#define B43legacy_PHY_PWRDOWN B43legacy_PHY_OFDM(0x03) /* Powerdown */
-#define B43legacy_PHY_CRSTHRES1 B43legacy_PHY_OFDM(0x06) /* CRS Threshold 1 */
-#define B43legacy_PHY_LNAHPFCTL B43legacy_PHY_OFDM(0x1C) /* LNA/HPF control */
-#define B43legacy_PHY_ADIVRELATED B43legacy_PHY_OFDM(0x27) /* FIXME rename */
-#define B43legacy_PHY_CRS0 B43legacy_PHY_OFDM(0x29)
-#define B43legacy_PHY_ANTDWELL B43legacy_PHY_OFDM(0x2B) /* Antenna dwell */
-#define B43legacy_PHY_ANTDWELL_AUTODIV1 0x0100 /* Automatic RX diversity start antenna */
-#define B43legacy_PHY_ENCORE B43legacy_PHY_OFDM(0x49) /* "Encore" (RangeMax / BroadRange) */
-#define B43legacy_PHY_ENCORE_EN 0x0200 /* Encore enable */
-#define B43legacy_PHY_LMS B43legacy_PHY_OFDM(0x55)
-#define B43legacy_PHY_OFDM61 B43legacy_PHY_OFDM(0x61) /* FIXME rename */
-#define B43legacy_PHY_OFDM61_10 0x0010 /* FIXME rename */
-#define B43legacy_PHY_IQBAL B43legacy_PHY_OFDM(0x69) /* I/Q balance */
-#define B43legacy_PHY_OTABLECTL B43legacy_PHY_OFDM(0x72) /* OFDM table control (see below) */
-#define B43legacy_PHY_OTABLEOFF 0x03FF /* OFDM table offset (see below) */
-#define B43legacy_PHY_OTABLENR 0xFC00 /* OFDM table number (see below) */
-#define B43legacy_PHY_OTABLENR_SHIFT 10
-#define B43legacy_PHY_OTABLEI B43legacy_PHY_OFDM(0x73) /* OFDM table data I */
-#define B43legacy_PHY_OTABLEQ B43legacy_PHY_OFDM(0x74) /* OFDM table data Q */
-#define B43legacy_PHY_HPWR_TSSICTL B43legacy_PHY_OFDM(0x78) /* Hardware power TSSI control */
-#define B43legacy_PHY_NRSSITHRES B43legacy_PHY_OFDM(0x8A) /* NRSSI threshold */
-#define B43legacy_PHY_ANTWRSETT B43legacy_PHY_OFDM(0x8C) /* Antenna WR settle */
-#define B43legacy_PHY_ANTWRSETT_ARXDIV 0x2000 /* Automatic RX diversity enabled */
-#define B43legacy_PHY_CLIPPWRDOWNT B43legacy_PHY_OFDM(0x93) /* Clip powerdown threshold */
-#define B43legacy_PHY_OFDM9B B43legacy_PHY_OFDM(0x9B) /* FIXME rename */
-#define B43legacy_PHY_N1P1GAIN B43legacy_PHY_OFDM(0xA0)
-#define B43legacy_PHY_P1P2GAIN B43legacy_PHY_OFDM(0xA1)
-#define B43legacy_PHY_N1N2GAIN B43legacy_PHY_OFDM(0xA2)
-#define B43legacy_PHY_CLIPTHRES B43legacy_PHY_OFDM(0xA3)
-#define B43legacy_PHY_CLIPN1P2THRES B43legacy_PHY_OFDM(0xA4)
-#define B43legacy_PHY_DIVSRCHIDX B43legacy_PHY_OFDM(0xA8) /* Divider search gain/index */
-#define B43legacy_PHY_CLIPP2THRES B43legacy_PHY_OFDM(0xA9)
-#define B43legacy_PHY_CLIPP3THRES B43legacy_PHY_OFDM(0xAA)
-#define B43legacy_PHY_DIVP1P2GAIN B43legacy_PHY_OFDM(0xAB)
-#define B43legacy_PHY_DIVSRCHGAINBACK B43legacy_PHY_OFDM(0xAD) /* Divider search gain back */
-#define B43legacy_PHY_DIVSRCHGAINCHNG B43legacy_PHY_OFDM(0xAE) /* Divider search gain change */
-#define B43legacy_PHY_CRSTHRES1_R1 B43legacy_PHY_OFDM(0xC0) /* CRS Threshold 1 (rev 1 only) */
-#define B43legacy_PHY_CRSTHRES2_R1 B43legacy_PHY_OFDM(0xC1) /* CRS Threshold 2 (rev 1 only) */
-#define B43legacy_PHY_TSSIP_LTBASE B43legacy_PHY_OFDM(0x380) /* TSSI power lookup table base */
-#define B43legacy_PHY_DC_LTBASE B43legacy_PHY_OFDM(0x3A0) /* DC lookup table base */
-#define B43legacy_PHY_GAIN_LTBASE B43legacy_PHY_OFDM(0x3C0) /* Gain lookup table base */
-
-void b43legacy_put_attenuation_into_ranges(int *_bbatt, int *_rfatt);
-
-/* Masks for the different PHY versioning registers. */
-#define B43legacy_PHYVER_ANALOG 0xF000
-#define B43legacy_PHYVER_ANALOG_SHIFT 12
-#define B43legacy_PHYVER_TYPE 0x0F00
-#define B43legacy_PHYVER_TYPE_SHIFT 8
-#define B43legacy_PHYVER_VERSION 0x00FF
-
-struct b43legacy_wldev;
-
-void b43legacy_phy_lock(struct b43legacy_wldev *dev);
-void b43legacy_phy_unlock(struct b43legacy_wldev *dev);
-
-/* Card uses the loopback gain stuff */
-#define has_loopback_gain(phy) \
- (((phy)->rev > 1) || ((phy)->gmode))
-
-u16 b43legacy_phy_read(struct b43legacy_wldev *dev, u16 offset);
-void b43legacy_phy_write(struct b43legacy_wldev *dev, u16 offset, u16 val);
-
-int b43legacy_phy_init_tssi2dbm_table(struct b43legacy_wldev *dev);
-int b43legacy_phy_init(struct b43legacy_wldev *dev);
-
-void b43legacy_set_rx_antenna(struct b43legacy_wldev *dev, int antenna);
-
-void b43legacy_phy_set_antenna_diversity(struct b43legacy_wldev *dev);
-void b43legacy_phy_calibrate(struct b43legacy_wldev *dev);
-int b43legacy_phy_connect(struct b43legacy_wldev *dev, int connect);
-
-void b43legacy_phy_lo_b_measure(struct b43legacy_wldev *dev);
-void b43legacy_phy_lo_g_measure(struct b43legacy_wldev *dev);
-void b43legacy_phy_xmitpower(struct b43legacy_wldev *dev);
-
-/* Adjust the LocalOscillator to the saved values.
- * "fixed" is only set to 1 once in initialization. Set to 0 otherwise.
- */
-void b43legacy_phy_lo_adjust(struct b43legacy_wldev *dev, int fixed);
-void b43legacy_phy_lo_mark_all_unused(struct b43legacy_wldev *dev);
-
-void b43legacy_phy_set_baseband_attenuation(struct b43legacy_wldev *dev,
- u16 baseband_attenuation);
-
-void b43legacy_power_saving_ctl_bits(struct b43legacy_wldev *dev,
- int bit25, int bit26);
-
-#endif /* B43legacy_PHY_H_ */
+++ /dev/null
-/*
-
- Broadcom B43legacy wireless driver
-
- PIO Transmission
-
- Copyright (c) 2005 Michael Buesch <m@bues.ch>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
- Boston, MA 02110-1301, USA.
-
-*/
-
-#include "b43legacy.h"
-#include "pio.h"
-#include "main.h"
-#include "xmit.h"
-
-#include <linux/delay.h>
-#include <linux/slab.h>
-
-
-static void tx_start(struct b43legacy_pioqueue *queue)
-{
- b43legacy_pio_write(queue, B43legacy_PIO_TXCTL,
- B43legacy_PIO_TXCTL_INIT);
-}
-
-static void tx_octet(struct b43legacy_pioqueue *queue,
- u8 octet)
-{
- if (queue->need_workarounds) {
- b43legacy_pio_write(queue, B43legacy_PIO_TXDATA, octet);
- b43legacy_pio_write(queue, B43legacy_PIO_TXCTL,
- B43legacy_PIO_TXCTL_WRITELO);
- } else {
- b43legacy_pio_write(queue, B43legacy_PIO_TXCTL,
- B43legacy_PIO_TXCTL_WRITELO);
- b43legacy_pio_write(queue, B43legacy_PIO_TXDATA, octet);
- }
-}
-
-static u16 tx_get_next_word(const u8 *txhdr,
- const u8 *packet,
- size_t txhdr_size,
- unsigned int *pos)
-{
- const u8 *source;
- unsigned int i = *pos;
- u16 ret;
-
- if (i < txhdr_size)
- source = txhdr;
- else {
- source = packet;
- i -= txhdr_size;
- }
- ret = le16_to_cpu(*((__le16 *)(source + i)));
- *pos += 2;
-
- return ret;
-}
-
-static void tx_data(struct b43legacy_pioqueue *queue,
- u8 *txhdr,
- const u8 *packet,
- unsigned int octets)
-{
- u16 data;
- unsigned int i = 0;
-
- if (queue->need_workarounds) {
- data = tx_get_next_word(txhdr, packet,
- sizeof(struct b43legacy_txhdr_fw3), &i);
- b43legacy_pio_write(queue, B43legacy_PIO_TXDATA, data);
- }
- b43legacy_pio_write(queue, B43legacy_PIO_TXCTL,
- B43legacy_PIO_TXCTL_WRITELO |
- B43legacy_PIO_TXCTL_WRITEHI);
- while (i < octets - 1) {
- data = tx_get_next_word(txhdr, packet,
- sizeof(struct b43legacy_txhdr_fw3), &i);
- b43legacy_pio_write(queue, B43legacy_PIO_TXDATA, data);
- }
- if (octets % 2)
- tx_octet(queue, packet[octets -
- sizeof(struct b43legacy_txhdr_fw3) - 1]);
-}
-
-static void tx_complete(struct b43legacy_pioqueue *queue,
- struct sk_buff *skb)
-{
- if (queue->need_workarounds) {
- b43legacy_pio_write(queue, B43legacy_PIO_TXDATA,
- skb->data[skb->len - 1]);
- b43legacy_pio_write(queue, B43legacy_PIO_TXCTL,
- B43legacy_PIO_TXCTL_WRITELO |
- B43legacy_PIO_TXCTL_COMPLETE);
- } else
- b43legacy_pio_write(queue, B43legacy_PIO_TXCTL,
- B43legacy_PIO_TXCTL_COMPLETE);
-}
-
-static u16 generate_cookie(struct b43legacy_pioqueue *queue,
- struct b43legacy_pio_txpacket *packet)
-{
- u16 cookie = 0x0000;
- int packetindex;
-
- /* We use the upper 4 bits for the PIO
- * controller ID and the lower 12 bits
- * for the packet index (in the cache).
- */
- switch (queue->mmio_base) {
- case B43legacy_MMIO_PIO1_BASE:
- break;
- case B43legacy_MMIO_PIO2_BASE:
- cookie = 0x1000;
- break;
- case B43legacy_MMIO_PIO3_BASE:
- cookie = 0x2000;
- break;
- case B43legacy_MMIO_PIO4_BASE:
- cookie = 0x3000;
- break;
- default:
- B43legacy_WARN_ON(1);
- }
- packetindex = pio_txpacket_getindex(packet);
- B43legacy_WARN_ON(!(((u16)packetindex & 0xF000) == 0x0000));
- cookie |= (u16)packetindex;
-
- return cookie;
-}
-
-static
-struct b43legacy_pioqueue *parse_cookie(struct b43legacy_wldev *dev,
- u16 cookie,
- struct b43legacy_pio_txpacket **packet)
-{
- struct b43legacy_pio *pio = &dev->pio;
- struct b43legacy_pioqueue *queue = NULL;
- int packetindex;
-
- switch (cookie & 0xF000) {
- case 0x0000:
- queue = pio->queue0;
- break;
- case 0x1000:
- queue = pio->queue1;
- break;
- case 0x2000:
- queue = pio->queue2;
- break;
- case 0x3000:
- queue = pio->queue3;
- break;
- default:
- B43legacy_WARN_ON(1);
- }
- packetindex = (cookie & 0x0FFF);
- B43legacy_WARN_ON(!(packetindex >= 0 && packetindex
- < B43legacy_PIO_MAXTXPACKETS));
- *packet = &(queue->tx_packets_cache[packetindex]);
-
- return queue;
-}
-
-union txhdr_union {
- struct b43legacy_txhdr_fw3 txhdr_fw3;
-};
-
-static int pio_tx_write_fragment(struct b43legacy_pioqueue *queue,
- struct sk_buff *skb,
- struct b43legacy_pio_txpacket *packet,
- size_t txhdr_size)
-{
- union txhdr_union txhdr_data;
- u8 *txhdr = NULL;
- unsigned int octets;
- int err;
-
- txhdr = (u8 *)(&txhdr_data.txhdr_fw3);
-
- B43legacy_WARN_ON(skb_shinfo(skb)->nr_frags != 0);
- err = b43legacy_generate_txhdr(queue->dev,
- txhdr, skb->data, skb->len,
- IEEE80211_SKB_CB(skb),
- generate_cookie(queue, packet));
- if (err)
- return err;
-
- tx_start(queue);
- octets = skb->len + txhdr_size;
- if (queue->need_workarounds)
- octets--;
- tx_data(queue, txhdr, (u8 *)skb->data, octets);
- tx_complete(queue, skb);
-
- return 0;
-}
-
-static void free_txpacket(struct b43legacy_pio_txpacket *packet,
- int irq_context)
-{
- struct b43legacy_pioqueue *queue = packet->queue;
-
- if (packet->skb) {
- if (irq_context)
- dev_kfree_skb_irq(packet->skb);
- else
- dev_kfree_skb(packet->skb);
- }
- list_move(&packet->list, &queue->txfree);
- queue->nr_txfree++;
-}
-
-static int pio_tx_packet(struct b43legacy_pio_txpacket *packet)
-{
- struct b43legacy_pioqueue *queue = packet->queue;
- struct sk_buff *skb = packet->skb;
- u16 octets;
- int err;
-
- octets = (u16)skb->len + sizeof(struct b43legacy_txhdr_fw3);
- if (queue->tx_devq_size < octets) {
- b43legacywarn(queue->dev->wl, "PIO queue too small. "
- "Dropping packet.\n");
- /* Drop it silently (return success) */
- free_txpacket(packet, 1);
- return 0;
- }
- B43legacy_WARN_ON(queue->tx_devq_packets >
- B43legacy_PIO_MAXTXDEVQPACKETS);
- B43legacy_WARN_ON(queue->tx_devq_used > queue->tx_devq_size);
- /* Check if there is sufficient free space on the device
- * TX queue. If not, return and let the TX tasklet
- * retry later.
- */
- if (queue->tx_devq_packets == B43legacy_PIO_MAXTXDEVQPACKETS)
- return -EBUSY;
- if (queue->tx_devq_used + octets > queue->tx_devq_size)
- return -EBUSY;
- /* Now poke the device. */
- err = pio_tx_write_fragment(queue, skb, packet,
- sizeof(struct b43legacy_txhdr_fw3));
- if (unlikely(err == -ENOKEY)) {
- /* Drop this packet, as we don't have the encryption key
- * anymore and must not transmit it unencrypted. */
- free_txpacket(packet, 1);
- return 0;
- }
-
- /* Account for the packet size.
- * (We must not overflow the device TX queue)
- */
- queue->tx_devq_packets++;
- queue->tx_devq_used += octets;
-
- /* Transmission started, everything ok, move the
- * packet to the txrunning list.
- */
- list_move_tail(&packet->list, &queue->txrunning);
-
- return 0;
-}
-
-static void tx_tasklet(unsigned long d)
-{
- struct b43legacy_pioqueue *queue = (struct b43legacy_pioqueue *)d;
- struct b43legacy_wldev *dev = queue->dev;
- unsigned long flags;
- struct b43legacy_pio_txpacket *packet, *tmp_packet;
- int err;
- u16 txctl;
-
- spin_lock_irqsave(&dev->wl->irq_lock, flags);
- if (queue->tx_frozen)
- goto out_unlock;
- txctl = b43legacy_pio_read(queue, B43legacy_PIO_TXCTL);
- if (txctl & B43legacy_PIO_TXCTL_SUSPEND)
- goto out_unlock;
-
- list_for_each_entry_safe(packet, tmp_packet, &queue->txqueue, list) {
- /* Try to transmit the packet. This can fail, if
- * the device queue is full. In case of failure, the
- * packet is left in the txqueue.
- * If transmission succeed, the packet is moved to txrunning.
- * If it is impossible to transmit the packet, it
- * is dropped.
- */
- err = pio_tx_packet(packet);
- if (err)
- break;
- }
-out_unlock:
- spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
-}
-
-static void setup_txqueues(struct b43legacy_pioqueue *queue)
-{
- struct b43legacy_pio_txpacket *packet;
- int i;
-
- queue->nr_txfree = B43legacy_PIO_MAXTXPACKETS;
- for (i = 0; i < B43legacy_PIO_MAXTXPACKETS; i++) {
- packet = &(queue->tx_packets_cache[i]);
-
- packet->queue = queue;
- INIT_LIST_HEAD(&packet->list);
-
- list_add(&packet->list, &queue->txfree);
- }
-}
-
-static
-struct b43legacy_pioqueue *b43legacy_setup_pioqueue(struct b43legacy_wldev *dev,
- u16 pio_mmio_base)
-{
- struct b43legacy_pioqueue *queue;
- u32 value;
- u16 qsize;
-
- queue = kzalloc(sizeof(*queue), GFP_KERNEL);
- if (!queue)
- goto out;
-
- queue->dev = dev;
- queue->mmio_base = pio_mmio_base;
- queue->need_workarounds = (dev->dev->id.revision < 3);
-
- INIT_LIST_HEAD(&queue->txfree);
- INIT_LIST_HEAD(&queue->txqueue);
- INIT_LIST_HEAD(&queue->txrunning);
- tasklet_init(&queue->txtask, tx_tasklet,
- (unsigned long)queue);
-
- value = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- value &= ~B43legacy_MACCTL_BE;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, value);
-
- qsize = b43legacy_read16(dev, queue->mmio_base
- + B43legacy_PIO_TXQBUFSIZE);
- if (qsize == 0) {
- b43legacyerr(dev->wl, "This card does not support PIO "
- "operation mode. Please use DMA mode "
- "(module parameter pio=0).\n");
- goto err_freequeue;
- }
- if (qsize <= B43legacy_PIO_TXQADJUST) {
- b43legacyerr(dev->wl, "PIO tx device-queue too small (%u)\n",
- qsize);
- goto err_freequeue;
- }
- qsize -= B43legacy_PIO_TXQADJUST;
- queue->tx_devq_size = qsize;
-
- setup_txqueues(queue);
-
-out:
- return queue;
-
-err_freequeue:
- kfree(queue);
- queue = NULL;
- goto out;
-}
-
-static void cancel_transfers(struct b43legacy_pioqueue *queue)
-{
- struct b43legacy_pio_txpacket *packet, *tmp_packet;
-
- tasklet_kill(&queue->txtask);
-
- list_for_each_entry_safe(packet, tmp_packet, &queue->txrunning, list)
- free_txpacket(packet, 0);
- list_for_each_entry_safe(packet, tmp_packet, &queue->txqueue, list)
- free_txpacket(packet, 0);
-}
-
-static void b43legacy_destroy_pioqueue(struct b43legacy_pioqueue *queue)
-{
- if (!queue)
- return;
-
- cancel_transfers(queue);
- kfree(queue);
-}
-
-void b43legacy_pio_free(struct b43legacy_wldev *dev)
-{
- struct b43legacy_pio *pio;
-
- if (!b43legacy_using_pio(dev))
- return;
- pio = &dev->pio;
-
- b43legacy_destroy_pioqueue(pio->queue3);
- pio->queue3 = NULL;
- b43legacy_destroy_pioqueue(pio->queue2);
- pio->queue2 = NULL;
- b43legacy_destroy_pioqueue(pio->queue1);
- pio->queue1 = NULL;
- b43legacy_destroy_pioqueue(pio->queue0);
- pio->queue0 = NULL;
-}
-
-int b43legacy_pio_init(struct b43legacy_wldev *dev)
-{
- struct b43legacy_pio *pio = &dev->pio;
- struct b43legacy_pioqueue *queue;
- int err = -ENOMEM;
-
- queue = b43legacy_setup_pioqueue(dev, B43legacy_MMIO_PIO1_BASE);
- if (!queue)
- goto out;
- pio->queue0 = queue;
-
- queue = b43legacy_setup_pioqueue(dev, B43legacy_MMIO_PIO2_BASE);
- if (!queue)
- goto err_destroy0;
- pio->queue1 = queue;
-
- queue = b43legacy_setup_pioqueue(dev, B43legacy_MMIO_PIO3_BASE);
- if (!queue)
- goto err_destroy1;
- pio->queue2 = queue;
-
- queue = b43legacy_setup_pioqueue(dev, B43legacy_MMIO_PIO4_BASE);
- if (!queue)
- goto err_destroy2;
- pio->queue3 = queue;
-
- if (dev->dev->id.revision < 3)
- dev->irq_mask |= B43legacy_IRQ_PIO_WORKAROUND;
-
- b43legacydbg(dev->wl, "PIO initialized\n");
- err = 0;
-out:
- return err;
-
-err_destroy2:
- b43legacy_destroy_pioqueue(pio->queue2);
- pio->queue2 = NULL;
-err_destroy1:
- b43legacy_destroy_pioqueue(pio->queue1);
- pio->queue1 = NULL;
-err_destroy0:
- b43legacy_destroy_pioqueue(pio->queue0);
- pio->queue0 = NULL;
- goto out;
-}
-
-int b43legacy_pio_tx(struct b43legacy_wldev *dev,
- struct sk_buff *skb)
-{
- struct b43legacy_pioqueue *queue = dev->pio.queue1;
- struct b43legacy_pio_txpacket *packet;
-
- B43legacy_WARN_ON(queue->tx_suspended);
- B43legacy_WARN_ON(list_empty(&queue->txfree));
-
- packet = list_entry(queue->txfree.next, struct b43legacy_pio_txpacket,
- list);
- packet->skb = skb;
-
- list_move_tail(&packet->list, &queue->txqueue);
- queue->nr_txfree--;
- B43legacy_WARN_ON(queue->nr_txfree >= B43legacy_PIO_MAXTXPACKETS);
-
- tasklet_schedule(&queue->txtask);
-
- return 0;
-}
-
-void b43legacy_pio_handle_txstatus(struct b43legacy_wldev *dev,
- const struct b43legacy_txstatus *status)
-{
- struct b43legacy_pioqueue *queue;
- struct b43legacy_pio_txpacket *packet;
- struct ieee80211_tx_info *info;
- int retry_limit;
-
- queue = parse_cookie(dev, status->cookie, &packet);
- B43legacy_WARN_ON(!queue);
-
- if (!packet->skb)
- return;
-
- queue->tx_devq_packets--;
- queue->tx_devq_used -= (packet->skb->len +
- sizeof(struct b43legacy_txhdr_fw3));
-
- info = IEEE80211_SKB_CB(packet->skb);
-
- /* preserve the confiured retry limit before clearing the status
- * The xmit function has overwritten the rc's value with the actual
- * retry limit done by the hardware */
- retry_limit = info->status.rates[0].count;
- ieee80211_tx_info_clear_status(info);
-
- if (status->acked)
- info->flags |= IEEE80211_TX_STAT_ACK;
-
- if (status->rts_count > dev->wl->hw->conf.short_frame_max_tx_count) {
- /*
- * If the short retries (RTS, not data frame) have exceeded
- * the limit, the hw will not have tried the selected rate,
- * but will have used the fallback rate instead.
- * Don't let the rate control count attempts for the selected
- * rate in this case, otherwise the statistics will be off.
- */
- info->status.rates[0].count = 0;
- info->status.rates[1].count = status->frame_count;
- } else {
- if (status->frame_count > retry_limit) {
- info->status.rates[0].count = retry_limit;
- info->status.rates[1].count = status->frame_count -
- retry_limit;
-
- } else {
- info->status.rates[0].count = status->frame_count;
- info->status.rates[1].idx = -1;
- }
- }
- ieee80211_tx_status_irqsafe(dev->wl->hw, packet->skb);
- packet->skb = NULL;
-
- free_txpacket(packet, 1);
- /* If there are packets on the txqueue, poke the tasklet
- * to transmit them.
- */
- if (!list_empty(&queue->txqueue))
- tasklet_schedule(&queue->txtask);
-}
-
-static void pio_rx_error(struct b43legacy_pioqueue *queue,
- int clear_buffers,
- const char *error)
-{
- int i;
-
- b43legacyerr(queue->dev->wl, "PIO RX error: %s\n", error);
- b43legacy_pio_write(queue, B43legacy_PIO_RXCTL,
- B43legacy_PIO_RXCTL_READY);
- if (clear_buffers) {
- B43legacy_WARN_ON(queue->mmio_base != B43legacy_MMIO_PIO1_BASE);
- for (i = 0; i < 15; i++) {
- /* Dummy read. */
- b43legacy_pio_read(queue, B43legacy_PIO_RXDATA);
- }
- }
-}
-
-void b43legacy_pio_rx(struct b43legacy_pioqueue *queue)
-{
- __le16 preamble[21] = { 0 };
- struct b43legacy_rxhdr_fw3 *rxhdr;
- u16 tmp;
- u16 len;
- u16 macstat;
- int i;
- int preamble_readwords;
- struct sk_buff *skb;
-
- tmp = b43legacy_pio_read(queue, B43legacy_PIO_RXCTL);
- if (!(tmp & B43legacy_PIO_RXCTL_DATAAVAILABLE))
- return;
- b43legacy_pio_write(queue, B43legacy_PIO_RXCTL,
- B43legacy_PIO_RXCTL_DATAAVAILABLE);
-
- for (i = 0; i < 10; i++) {
- tmp = b43legacy_pio_read(queue, B43legacy_PIO_RXCTL);
- if (tmp & B43legacy_PIO_RXCTL_READY)
- goto data_ready;
- udelay(10);
- }
- b43legacydbg(queue->dev->wl, "PIO RX timed out\n");
- return;
-data_ready:
-
- len = b43legacy_pio_read(queue, B43legacy_PIO_RXDATA);
- if (unlikely(len > 0x700)) {
- pio_rx_error(queue, 0, "len > 0x700");
- return;
- }
- if (unlikely(len == 0 && queue->mmio_base !=
- B43legacy_MMIO_PIO4_BASE)) {
- pio_rx_error(queue, 0, "len == 0");
- return;
- }
- preamble[0] = cpu_to_le16(len);
- if (queue->mmio_base == B43legacy_MMIO_PIO4_BASE)
- preamble_readwords = 14 / sizeof(u16);
- else
- preamble_readwords = 18 / sizeof(u16);
- for (i = 0; i < preamble_readwords; i++) {
- tmp = b43legacy_pio_read(queue, B43legacy_PIO_RXDATA);
- preamble[i + 1] = cpu_to_le16(tmp);
- }
- rxhdr = (struct b43legacy_rxhdr_fw3 *)preamble;
- macstat = le16_to_cpu(rxhdr->mac_status);
- if (macstat & B43legacy_RX_MAC_FCSERR) {
- pio_rx_error(queue,
- (queue->mmio_base == B43legacy_MMIO_PIO1_BASE),
- "Frame FCS error");
- return;
- }
- if (queue->mmio_base == B43legacy_MMIO_PIO4_BASE) {
- /* We received an xmit status. */
- struct b43legacy_hwtxstatus *hw;
-
- hw = (struct b43legacy_hwtxstatus *)(preamble + 1);
- b43legacy_handle_hwtxstatus(queue->dev, hw);
-
- return;
- }
-
- skb = dev_alloc_skb(len);
- if (unlikely(!skb)) {
- pio_rx_error(queue, 1, "OOM");
- return;
- }
- skb_put(skb, len);
- for (i = 0; i < len - 1; i += 2) {
- tmp = b43legacy_pio_read(queue, B43legacy_PIO_RXDATA);
- *((__le16 *)(skb->data + i)) = cpu_to_le16(tmp);
- }
- if (len % 2) {
- tmp = b43legacy_pio_read(queue, B43legacy_PIO_RXDATA);
- skb->data[len - 1] = (tmp & 0x00FF);
- }
- b43legacy_rx(queue->dev, skb, rxhdr);
-}
-
-void b43legacy_pio_tx_suspend(struct b43legacy_pioqueue *queue)
-{
- b43legacy_power_saving_ctl_bits(queue->dev, -1, 1);
- b43legacy_pio_write(queue, B43legacy_PIO_TXCTL,
- b43legacy_pio_read(queue, B43legacy_PIO_TXCTL)
- | B43legacy_PIO_TXCTL_SUSPEND);
-}
-
-void b43legacy_pio_tx_resume(struct b43legacy_pioqueue *queue)
-{
- b43legacy_pio_write(queue, B43legacy_PIO_TXCTL,
- b43legacy_pio_read(queue, B43legacy_PIO_TXCTL)
- & ~B43legacy_PIO_TXCTL_SUSPEND);
- b43legacy_power_saving_ctl_bits(queue->dev, -1, -1);
- tasklet_schedule(&queue->txtask);
-}
-
-void b43legacy_pio_freeze_txqueues(struct b43legacy_wldev *dev)
-{
- struct b43legacy_pio *pio;
-
- B43legacy_WARN_ON(!b43legacy_using_pio(dev));
- pio = &dev->pio;
- pio->queue0->tx_frozen = 1;
- pio->queue1->tx_frozen = 1;
- pio->queue2->tx_frozen = 1;
- pio->queue3->tx_frozen = 1;
-}
-
-void b43legacy_pio_thaw_txqueues(struct b43legacy_wldev *dev)
-{
- struct b43legacy_pio *pio;
-
- B43legacy_WARN_ON(!b43legacy_using_pio(dev));
- pio = &dev->pio;
- pio->queue0->tx_frozen = 0;
- pio->queue1->tx_frozen = 0;
- pio->queue2->tx_frozen = 0;
- pio->queue3->tx_frozen = 0;
- if (!list_empty(&pio->queue0->txqueue))
- tasklet_schedule(&pio->queue0->txtask);
- if (!list_empty(&pio->queue1->txqueue))
- tasklet_schedule(&pio->queue1->txtask);
- if (!list_empty(&pio->queue2->txqueue))
- tasklet_schedule(&pio->queue2->txtask);
- if (!list_empty(&pio->queue3->txqueue))
- tasklet_schedule(&pio->queue3->txtask);
-}
+++ /dev/null
-#ifndef B43legacy_PIO_H_
-#define B43legacy_PIO_H_
-
-#include "b43legacy.h"
-
-#include <linux/interrupt.h>
-#include <linux/list.h>
-#include <linux/skbuff.h>
-
-
-#define B43legacy_PIO_TXCTL 0x00
-#define B43legacy_PIO_TXDATA 0x02
-#define B43legacy_PIO_TXQBUFSIZE 0x04
-#define B43legacy_PIO_RXCTL 0x08
-#define B43legacy_PIO_RXDATA 0x0A
-
-#define B43legacy_PIO_TXCTL_WRITELO (1 << 0)
-#define B43legacy_PIO_TXCTL_WRITEHI (1 << 1)
-#define B43legacy_PIO_TXCTL_COMPLETE (1 << 2)
-#define B43legacy_PIO_TXCTL_INIT (1 << 3)
-#define B43legacy_PIO_TXCTL_SUSPEND (1 << 7)
-
-#define B43legacy_PIO_RXCTL_DATAAVAILABLE (1 << 0)
-#define B43legacy_PIO_RXCTL_READY (1 << 1)
-
-/* PIO constants */
-#define B43legacy_PIO_MAXTXDEVQPACKETS 31
-#define B43legacy_PIO_TXQADJUST 80
-
-/* PIO tuning knobs */
-#define B43legacy_PIO_MAXTXPACKETS 256
-
-
-
-#ifdef CONFIG_B43LEGACY_PIO
-
-
-struct b43legacy_pioqueue;
-struct b43legacy_xmitstatus;
-
-struct b43legacy_pio_txpacket {
- struct b43legacy_pioqueue *queue;
- struct sk_buff *skb;
- struct list_head list;
-};
-
-#define pio_txpacket_getindex(packet) ((int)((packet) - \
- (packet)->queue->tx_packets_cache))
-
-struct b43legacy_pioqueue {
- struct b43legacy_wldev *dev;
- u16 mmio_base;
-
- bool tx_suspended;
- bool tx_frozen;
- bool need_workarounds; /* Workarounds needed for core.rev < 3 */
-
- /* Adjusted size of the device internal TX buffer. */
- u16 tx_devq_size;
- /* Used octets of the device internal TX buffer. */
- u16 tx_devq_used;
- /* Used packet slots in the device internal TX buffer. */
- u8 tx_devq_packets;
- /* Packets from the txfree list can
- * be taken on incoming TX requests.
- */
- struct list_head txfree;
- unsigned int nr_txfree;
- /* Packets on the txqueue are queued,
- * but not completely written to the chip, yet.
- */
- struct list_head txqueue;
- /* Packets on the txrunning queue are completely
- * posted to the device. We are waiting for the txstatus.
- */
- struct list_head txrunning;
- struct tasklet_struct txtask;
- struct b43legacy_pio_txpacket
- tx_packets_cache[B43legacy_PIO_MAXTXPACKETS];
-};
-
-static inline
-u16 b43legacy_pio_read(struct b43legacy_pioqueue *queue,
- u16 offset)
-{
- return b43legacy_read16(queue->dev, queue->mmio_base + offset);
-}
-
-static inline
-void b43legacy_pio_write(struct b43legacy_pioqueue *queue,
- u16 offset, u16 value)
-{
- b43legacy_write16(queue->dev, queue->mmio_base + offset, value);
- mmiowb();
-}
-
-
-int b43legacy_pio_init(struct b43legacy_wldev *dev);
-void b43legacy_pio_free(struct b43legacy_wldev *dev);
-
-int b43legacy_pio_tx(struct b43legacy_wldev *dev,
- struct sk_buff *skb);
-void b43legacy_pio_handle_txstatus(struct b43legacy_wldev *dev,
- const struct b43legacy_txstatus *status);
-void b43legacy_pio_rx(struct b43legacy_pioqueue *queue);
-
-/* Suspend TX queue in hardware. */
-void b43legacy_pio_tx_suspend(struct b43legacy_pioqueue *queue);
-void b43legacy_pio_tx_resume(struct b43legacy_pioqueue *queue);
-/* Suspend (freeze) the TX tasklet (software level). */
-void b43legacy_pio_freeze_txqueues(struct b43legacy_wldev *dev);
-void b43legacy_pio_thaw_txqueues(struct b43legacy_wldev *dev);
-
-#else /* CONFIG_B43LEGACY_PIO */
-
-static inline
-int b43legacy_pio_init(struct b43legacy_wldev *dev)
-{
- return 0;
-}
-static inline
-void b43legacy_pio_free(struct b43legacy_wldev *dev)
-{
-}
-static inline
-int b43legacy_pio_tx(struct b43legacy_wldev *dev,
- struct sk_buff *skb)
-{
- return 0;
-}
-static inline
-void b43legacy_pio_handle_txstatus(struct b43legacy_wldev *dev,
- const struct b43legacy_txstatus *status)
-{
-}
-static inline
-void b43legacy_pio_rx(struct b43legacy_pioqueue *queue)
-{
-}
-static inline
-void b43legacy_pio_tx_suspend(struct b43legacy_pioqueue *queue)
-{
-}
-static inline
-void b43legacy_pio_tx_resume(struct b43legacy_pioqueue *queue)
-{
-}
-static inline
-void b43legacy_pio_freeze_txqueues(struct b43legacy_wldev *dev)
-{
-}
-static inline
-void b43legacy_pio_thaw_txqueues(struct b43legacy_wldev *dev)
-{
-}
-
-#endif /* CONFIG_B43LEGACY_PIO */
-#endif /* B43legacy_PIO_H_ */
+++ /dev/null
-/*
-
- Broadcom B43legacy wireless driver
-
- Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
- Stefano Brivio <stefano.brivio@polimi.it>
- Michael Buesch <m@bues.ch>
- Danny van Dyk <kugelfang@gentoo.org>
- Andreas Jaggi <andreas.jaggi@waterwave.ch>
- Copyright (c) 2007 Larry Finger <Larry.Finger@lwfinger.net>
-
- Some parts of the code in this file are derived from the ipw2200
- driver Copyright(c) 2003 - 2004 Intel Corporation.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
- Boston, MA 02110-1301, USA.
-
-*/
-
-#include <linux/delay.h>
-
-#include "b43legacy.h"
-#include "main.h"
-#include "phy.h"
-#include "radio.h"
-#include "ilt.h"
-
-
-/* Table for b43legacy_radio_calibrationvalue() */
-static const u16 rcc_table[16] = {
- 0x0002, 0x0003, 0x0001, 0x000F,
- 0x0006, 0x0007, 0x0005, 0x000F,
- 0x000A, 0x000B, 0x0009, 0x000F,
- 0x000E, 0x000F, 0x000D, 0x000F,
-};
-
-/* Reverse the bits of a 4bit value.
- * Example: 1101 is flipped 1011
- */
-static u16 flip_4bit(u16 value)
-{
- u16 flipped = 0x0000;
-
- B43legacy_BUG_ON(!((value & ~0x000F) == 0x0000));
-
- flipped |= (value & 0x0001) << 3;
- flipped |= (value & 0x0002) << 1;
- flipped |= (value & 0x0004) >> 1;
- flipped |= (value & 0x0008) >> 3;
-
- return flipped;
-}
-
-/* Get the freq, as it has to be written to the device. */
-static inline
-u16 channel2freq_bg(u8 channel)
-{
- /* Frequencies are given as frequencies_bg[index] + 2.4GHz
- * Starting with channel 1
- */
- static const u16 frequencies_bg[14] = {
- 12, 17, 22, 27,
- 32, 37, 42, 47,
- 52, 57, 62, 67,
- 72, 84,
- };
-
- if (unlikely(channel < 1 || channel > 14)) {
- printk(KERN_INFO "b43legacy: Channel %d is out of range\n",
- channel);
- dump_stack();
- return 2412;
- }
-
- return frequencies_bg[channel - 1];
-}
-
-void b43legacy_radio_lock(struct b43legacy_wldev *dev)
-{
- u32 status;
-
- status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- B43legacy_WARN_ON(status & B43legacy_MACCTL_RADIOLOCK);
- status |= B43legacy_MACCTL_RADIOLOCK;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, status);
- mmiowb();
- udelay(10);
-}
-
-void b43legacy_radio_unlock(struct b43legacy_wldev *dev)
-{
- u32 status;
-
- b43legacy_read16(dev, B43legacy_MMIO_PHY_VER); /* dummy read */
- status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- B43legacy_WARN_ON(!(status & B43legacy_MACCTL_RADIOLOCK));
- status &= ~B43legacy_MACCTL_RADIOLOCK;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, status);
- mmiowb();
-}
-
-u16 b43legacy_radio_read16(struct b43legacy_wldev *dev, u16 offset)
-{
- struct b43legacy_phy *phy = &dev->phy;
-
- switch (phy->type) {
- case B43legacy_PHYTYPE_B:
- if (phy->radio_ver == 0x2053) {
- if (offset < 0x70)
- offset += 0x80;
- else if (offset < 0x80)
- offset += 0x70;
- } else if (phy->radio_ver == 0x2050)
- offset |= 0x80;
- else
- B43legacy_WARN_ON(1);
- break;
- case B43legacy_PHYTYPE_G:
- offset |= 0x80;
- break;
- default:
- B43legacy_BUG_ON(1);
- }
-
- b43legacy_write16(dev, B43legacy_MMIO_RADIO_CONTROL, offset);
- return b43legacy_read16(dev, B43legacy_MMIO_RADIO_DATA_LOW);
-}
-
-void b43legacy_radio_write16(struct b43legacy_wldev *dev, u16 offset, u16 val)
-{
- b43legacy_write16(dev, B43legacy_MMIO_RADIO_CONTROL, offset);
- mmiowb();
- b43legacy_write16(dev, B43legacy_MMIO_RADIO_DATA_LOW, val);
-}
-
-static void b43legacy_set_all_gains(struct b43legacy_wldev *dev,
- s16 first, s16 second, s16 third)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 i;
- u16 start = 0x08;
- u16 end = 0x18;
- u16 offset = 0x0400;
- u16 tmp;
-
- if (phy->rev <= 1) {
- offset = 0x5000;
- start = 0x10;
- end = 0x20;
- }
-
- for (i = 0; i < 4; i++)
- b43legacy_ilt_write(dev, offset + i, first);
-
- for (i = start; i < end; i++)
- b43legacy_ilt_write(dev, offset + i, second);
-
- if (third != -1) {
- tmp = ((u16)third << 14) | ((u16)third << 6);
- b43legacy_phy_write(dev, 0x04A0,
- (b43legacy_phy_read(dev, 0x04A0) & 0xBFBF)
- | tmp);
- b43legacy_phy_write(dev, 0x04A1,
- (b43legacy_phy_read(dev, 0x04A1) & 0xBFBF)
- | tmp);
- b43legacy_phy_write(dev, 0x04A2,
- (b43legacy_phy_read(dev, 0x04A2) & 0xBFBF)
- | tmp);
- }
- b43legacy_dummy_transmission(dev);
-}
-
-static void b43legacy_set_original_gains(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 i;
- u16 tmp;
- u16 offset = 0x0400;
- u16 start = 0x0008;
- u16 end = 0x0018;
-
- if (phy->rev <= 1) {
- offset = 0x5000;
- start = 0x0010;
- end = 0x0020;
- }
-
- for (i = 0; i < 4; i++) {
- tmp = (i & 0xFFFC);
- tmp |= (i & 0x0001) << 1;
- tmp |= (i & 0x0002) >> 1;
-
- b43legacy_ilt_write(dev, offset + i, tmp);
- }
-
- for (i = start; i < end; i++)
- b43legacy_ilt_write(dev, offset + i, i - start);
-
- b43legacy_phy_write(dev, 0x04A0,
- (b43legacy_phy_read(dev, 0x04A0) & 0xBFBF)
- | 0x4040);
- b43legacy_phy_write(dev, 0x04A1,
- (b43legacy_phy_read(dev, 0x04A1) & 0xBFBF)
- | 0x4040);
- b43legacy_phy_write(dev, 0x04A2,
- (b43legacy_phy_read(dev, 0x04A2) & 0xBFBF)
- | 0x4000);
- b43legacy_dummy_transmission(dev);
-}
-
-/* Synthetic PU workaround */
-static void b43legacy_synth_pu_workaround(struct b43legacy_wldev *dev,
- u8 channel)
-{
- struct b43legacy_phy *phy = &dev->phy;
-
- might_sleep();
-
- if (phy->radio_ver != 0x2050 || phy->radio_rev >= 6)
- /* We do not need the workaround. */
- return;
-
- if (channel <= 10)
- b43legacy_write16(dev, B43legacy_MMIO_CHANNEL,
- channel2freq_bg(channel + 4));
- else
- b43legacy_write16(dev, B43legacy_MMIO_CHANNEL,
- channel2freq_bg(channel));
- msleep(1);
- b43legacy_write16(dev, B43legacy_MMIO_CHANNEL,
- channel2freq_bg(channel));
-}
-
-u8 b43legacy_radio_aci_detect(struct b43legacy_wldev *dev, u8 channel)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u8 ret = 0;
- u16 saved;
- u16 rssi;
- u16 temp;
- int i;
- int j = 0;
-
- saved = b43legacy_phy_read(dev, 0x0403);
- b43legacy_radio_selectchannel(dev, channel, 0);
- b43legacy_phy_write(dev, 0x0403, (saved & 0xFFF8) | 5);
- if (phy->aci_hw_rssi)
- rssi = b43legacy_phy_read(dev, 0x048A) & 0x3F;
- else
- rssi = saved & 0x3F;
- /* clamp temp to signed 5bit */
- if (rssi > 32)
- rssi -= 64;
- for (i = 0; i < 100; i++) {
- temp = (b43legacy_phy_read(dev, 0x047F) >> 8) & 0x3F;
- if (temp > 32)
- temp -= 64;
- if (temp < rssi)
- j++;
- if (j >= 20)
- ret = 1;
- }
- b43legacy_phy_write(dev, 0x0403, saved);
-
- return ret;
-}
-
-u8 b43legacy_radio_aci_scan(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u8 ret[13];
- unsigned int channel = phy->channel;
- unsigned int i;
- unsigned int j;
- unsigned int start;
- unsigned int end;
-
- if (!((phy->type == B43legacy_PHYTYPE_G) && (phy->rev > 0)))
- return 0;
-
- b43legacy_phy_lock(dev);
- b43legacy_radio_lock(dev);
- b43legacy_phy_write(dev, 0x0802,
- b43legacy_phy_read(dev, 0x0802) & 0xFFFC);
- b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
- b43legacy_phy_read(dev, B43legacy_PHY_G_CRS)
- & 0x7FFF);
- b43legacy_set_all_gains(dev, 3, 8, 1);
-
- start = (channel - 5 > 0) ? channel - 5 : 1;
- end = (channel + 5 < 14) ? channel + 5 : 13;
-
- for (i = start; i <= end; i++) {
- if (abs(channel - i) > 2)
- ret[i-1] = b43legacy_radio_aci_detect(dev, i);
- }
- b43legacy_radio_selectchannel(dev, channel, 0);
- b43legacy_phy_write(dev, 0x0802,
- (b43legacy_phy_read(dev, 0x0802) & 0xFFFC)
- | 0x0003);
- b43legacy_phy_write(dev, 0x0403,
- b43legacy_phy_read(dev, 0x0403) & 0xFFF8);
- b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
- b43legacy_phy_read(dev, B43legacy_PHY_G_CRS)
- | 0x8000);
- b43legacy_set_original_gains(dev);
- for (i = 0; i < 13; i++) {
- if (!ret[i])
- continue;
- end = (i + 5 < 13) ? i + 5 : 13;
- for (j = i; j < end; j++)
- ret[j] = 1;
- }
- b43legacy_radio_unlock(dev);
- b43legacy_phy_unlock(dev);
-
- return ret[channel - 1];
-}
-
-/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
-void b43legacy_nrssi_hw_write(struct b43legacy_wldev *dev, u16 offset, s16 val)
-{
- b43legacy_phy_write(dev, B43legacy_PHY_NRSSILT_CTRL, offset);
- mmiowb();
- b43legacy_phy_write(dev, B43legacy_PHY_NRSSILT_DATA, (u16)val);
-}
-
-/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
-s16 b43legacy_nrssi_hw_read(struct b43legacy_wldev *dev, u16 offset)
-{
- u16 val;
-
- b43legacy_phy_write(dev, B43legacy_PHY_NRSSILT_CTRL, offset);
- val = b43legacy_phy_read(dev, B43legacy_PHY_NRSSILT_DATA);
-
- return (s16)val;
-}
-
-/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
-void b43legacy_nrssi_hw_update(struct b43legacy_wldev *dev, u16 val)
-{
- u16 i;
- s16 tmp;
-
- for (i = 0; i < 64; i++) {
- tmp = b43legacy_nrssi_hw_read(dev, i);
- tmp -= val;
- tmp = clamp_val(tmp, -32, 31);
- b43legacy_nrssi_hw_write(dev, i, tmp);
- }
-}
-
-/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
-void b43legacy_nrssi_mem_update(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- s16 i;
- s16 delta;
- s32 tmp;
-
- delta = 0x1F - phy->nrssi[0];
- for (i = 0; i < 64; i++) {
- tmp = (i - delta) * phy->nrssislope;
- tmp /= 0x10000;
- tmp += 0x3A;
- tmp = clamp_val(tmp, 0, 0x3F);
- phy->nrssi_lt[i] = tmp;
- }
-}
-
-static void b43legacy_calc_nrssi_offset(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 backup[20] = { 0 };
- s16 v47F;
- u16 i;
- u16 saved = 0xFFFF;
-
- backup[0] = b43legacy_phy_read(dev, 0x0001);
- backup[1] = b43legacy_phy_read(dev, 0x0811);
- backup[2] = b43legacy_phy_read(dev, 0x0812);
- backup[3] = b43legacy_phy_read(dev, 0x0814);
- backup[4] = b43legacy_phy_read(dev, 0x0815);
- backup[5] = b43legacy_phy_read(dev, 0x005A);
- backup[6] = b43legacy_phy_read(dev, 0x0059);
- backup[7] = b43legacy_phy_read(dev, 0x0058);
- backup[8] = b43legacy_phy_read(dev, 0x000A);
- backup[9] = b43legacy_phy_read(dev, 0x0003);
- backup[10] = b43legacy_radio_read16(dev, 0x007A);
- backup[11] = b43legacy_radio_read16(dev, 0x0043);
-
- b43legacy_phy_write(dev, 0x0429,
- b43legacy_phy_read(dev, 0x0429) & 0x7FFF);
- b43legacy_phy_write(dev, 0x0001,
- (b43legacy_phy_read(dev, 0x0001) & 0x3FFF)
- | 0x4000);
- b43legacy_phy_write(dev, 0x0811,
- b43legacy_phy_read(dev, 0x0811) | 0x000C);
- b43legacy_phy_write(dev, 0x0812,
- (b43legacy_phy_read(dev, 0x0812) & 0xFFF3)
- | 0x0004);
- b43legacy_phy_write(dev, 0x0802,
- b43legacy_phy_read(dev, 0x0802) & ~(0x1 | 0x2));
- if (phy->rev >= 6) {
- backup[12] = b43legacy_phy_read(dev, 0x002E);
- backup[13] = b43legacy_phy_read(dev, 0x002F);
- backup[14] = b43legacy_phy_read(dev, 0x080F);
- backup[15] = b43legacy_phy_read(dev, 0x0810);
- backup[16] = b43legacy_phy_read(dev, 0x0801);
- backup[17] = b43legacy_phy_read(dev, 0x0060);
- backup[18] = b43legacy_phy_read(dev, 0x0014);
- backup[19] = b43legacy_phy_read(dev, 0x0478);
-
- b43legacy_phy_write(dev, 0x002E, 0);
- b43legacy_phy_write(dev, 0x002F, 0);
- b43legacy_phy_write(dev, 0x080F, 0);
- b43legacy_phy_write(dev, 0x0810, 0);
- b43legacy_phy_write(dev, 0x0478,
- b43legacy_phy_read(dev, 0x0478) | 0x0100);
- b43legacy_phy_write(dev, 0x0801,
- b43legacy_phy_read(dev, 0x0801) | 0x0040);
- b43legacy_phy_write(dev, 0x0060,
- b43legacy_phy_read(dev, 0x0060) | 0x0040);
- b43legacy_phy_write(dev, 0x0014,
- b43legacy_phy_read(dev, 0x0014) | 0x0200);
- }
- b43legacy_radio_write16(dev, 0x007A,
- b43legacy_radio_read16(dev, 0x007A) | 0x0070);
- b43legacy_radio_write16(dev, 0x007A,
- b43legacy_radio_read16(dev, 0x007A) | 0x0080);
- udelay(30);
-
- v47F = (s16)((b43legacy_phy_read(dev, 0x047F) >> 8) & 0x003F);
- if (v47F >= 0x20)
- v47F -= 0x40;
- if (v47F == 31) {
- for (i = 7; i >= 4; i--) {
- b43legacy_radio_write16(dev, 0x007B, i);
- udelay(20);
- v47F = (s16)((b43legacy_phy_read(dev, 0x047F) >> 8)
- & 0x003F);
- if (v47F >= 0x20)
- v47F -= 0x40;
- if (v47F < 31 && saved == 0xFFFF)
- saved = i;
- }
- if (saved == 0xFFFF)
- saved = 4;
- } else {
- b43legacy_radio_write16(dev, 0x007A,
- b43legacy_radio_read16(dev, 0x007A)
- & 0x007F);
- b43legacy_phy_write(dev, 0x0814,
- b43legacy_phy_read(dev, 0x0814) | 0x0001);
- b43legacy_phy_write(dev, 0x0815,
- b43legacy_phy_read(dev, 0x0815) & 0xFFFE);
- b43legacy_phy_write(dev, 0x0811,
- b43legacy_phy_read(dev, 0x0811) | 0x000C);
- b43legacy_phy_write(dev, 0x0812,
- b43legacy_phy_read(dev, 0x0812) | 0x000C);
- b43legacy_phy_write(dev, 0x0811,
- b43legacy_phy_read(dev, 0x0811) | 0x0030);
- b43legacy_phy_write(dev, 0x0812,
- b43legacy_phy_read(dev, 0x0812) | 0x0030);
- b43legacy_phy_write(dev, 0x005A, 0x0480);
- b43legacy_phy_write(dev, 0x0059, 0x0810);
- b43legacy_phy_write(dev, 0x0058, 0x000D);
- if (phy->analog == 0)
- b43legacy_phy_write(dev, 0x0003, 0x0122);
- else
- b43legacy_phy_write(dev, 0x000A,
- b43legacy_phy_read(dev, 0x000A)
- | 0x2000);
- b43legacy_phy_write(dev, 0x0814,
- b43legacy_phy_read(dev, 0x0814) | 0x0004);
- b43legacy_phy_write(dev, 0x0815,
- b43legacy_phy_read(dev, 0x0815) & 0xFFFB);
- b43legacy_phy_write(dev, 0x0003,
- (b43legacy_phy_read(dev, 0x0003) & 0xFF9F)
- | 0x0040);
- b43legacy_radio_write16(dev, 0x007A,
- b43legacy_radio_read16(dev, 0x007A)
- | 0x000F);
- b43legacy_set_all_gains(dev, 3, 0, 1);
- b43legacy_radio_write16(dev, 0x0043,
- (b43legacy_radio_read16(dev, 0x0043)
- & 0x00F0) | 0x000F);
- udelay(30);
- v47F = (s16)((b43legacy_phy_read(dev, 0x047F) >> 8) & 0x003F);
- if (v47F >= 0x20)
- v47F -= 0x40;
- if (v47F == -32) {
- for (i = 0; i < 4; i++) {
- b43legacy_radio_write16(dev, 0x007B, i);
- udelay(20);
- v47F = (s16)((b43legacy_phy_read(dev, 0x047F) >>
- 8) & 0x003F);
- if (v47F >= 0x20)
- v47F -= 0x40;
- if (v47F > -31 && saved == 0xFFFF)
- saved = i;
- }
- if (saved == 0xFFFF)
- saved = 3;
- } else
- saved = 0;
- }
- b43legacy_radio_write16(dev, 0x007B, saved);
-
- if (phy->rev >= 6) {
- b43legacy_phy_write(dev, 0x002E, backup[12]);
- b43legacy_phy_write(dev, 0x002F, backup[13]);
- b43legacy_phy_write(dev, 0x080F, backup[14]);
- b43legacy_phy_write(dev, 0x0810, backup[15]);
- }
- b43legacy_phy_write(dev, 0x0814, backup[3]);
- b43legacy_phy_write(dev, 0x0815, backup[4]);
- b43legacy_phy_write(dev, 0x005A, backup[5]);
- b43legacy_phy_write(dev, 0x0059, backup[6]);
- b43legacy_phy_write(dev, 0x0058, backup[7]);
- b43legacy_phy_write(dev, 0x000A, backup[8]);
- b43legacy_phy_write(dev, 0x0003, backup[9]);
- b43legacy_radio_write16(dev, 0x0043, backup[11]);
- b43legacy_radio_write16(dev, 0x007A, backup[10]);
- b43legacy_phy_write(dev, 0x0802,
- b43legacy_phy_read(dev, 0x0802) | 0x1 | 0x2);
- b43legacy_phy_write(dev, 0x0429,
- b43legacy_phy_read(dev, 0x0429) | 0x8000);
- b43legacy_set_original_gains(dev);
- if (phy->rev >= 6) {
- b43legacy_phy_write(dev, 0x0801, backup[16]);
- b43legacy_phy_write(dev, 0x0060, backup[17]);
- b43legacy_phy_write(dev, 0x0014, backup[18]);
- b43legacy_phy_write(dev, 0x0478, backup[19]);
- }
- b43legacy_phy_write(dev, 0x0001, backup[0]);
- b43legacy_phy_write(dev, 0x0812, backup[2]);
- b43legacy_phy_write(dev, 0x0811, backup[1]);
-}
-
-void b43legacy_calc_nrssi_slope(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 backup[18] = { 0 };
- u16 tmp;
- s16 nrssi0;
- s16 nrssi1;
-
- switch (phy->type) {
- case B43legacy_PHYTYPE_B:
- backup[0] = b43legacy_radio_read16(dev, 0x007A);
- backup[1] = b43legacy_radio_read16(dev, 0x0052);
- backup[2] = b43legacy_radio_read16(dev, 0x0043);
- backup[3] = b43legacy_phy_read(dev, 0x0030);
- backup[4] = b43legacy_phy_read(dev, 0x0026);
- backup[5] = b43legacy_phy_read(dev, 0x0015);
- backup[6] = b43legacy_phy_read(dev, 0x002A);
- backup[7] = b43legacy_phy_read(dev, 0x0020);
- backup[8] = b43legacy_phy_read(dev, 0x005A);
- backup[9] = b43legacy_phy_read(dev, 0x0059);
- backup[10] = b43legacy_phy_read(dev, 0x0058);
- backup[11] = b43legacy_read16(dev, 0x03E2);
- backup[12] = b43legacy_read16(dev, 0x03E6);
- backup[13] = b43legacy_read16(dev, B43legacy_MMIO_CHANNEL_EXT);
-
- tmp = b43legacy_radio_read16(dev, 0x007A);
- tmp &= (phy->rev >= 5) ? 0x007F : 0x000F;
- b43legacy_radio_write16(dev, 0x007A, tmp);
- b43legacy_phy_write(dev, 0x0030, 0x00FF);
- b43legacy_write16(dev, 0x03EC, 0x7F7F);
- b43legacy_phy_write(dev, 0x0026, 0x0000);
- b43legacy_phy_write(dev, 0x0015,
- b43legacy_phy_read(dev, 0x0015) | 0x0020);
- b43legacy_phy_write(dev, 0x002A, 0x08A3);
- b43legacy_radio_write16(dev, 0x007A,
- b43legacy_radio_read16(dev, 0x007A)
- | 0x0080);
-
- nrssi0 = (s16)b43legacy_phy_read(dev, 0x0027);
- b43legacy_radio_write16(dev, 0x007A,
- b43legacy_radio_read16(dev, 0x007A)
- & 0x007F);
- if (phy->analog >= 2)
- b43legacy_write16(dev, 0x03E6, 0x0040);
- else if (phy->analog == 0)
- b43legacy_write16(dev, 0x03E6, 0x0122);
- else
- b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT,
- b43legacy_read16(dev,
- B43legacy_MMIO_CHANNEL_EXT) & 0x2000);
- b43legacy_phy_write(dev, 0x0020, 0x3F3F);
- b43legacy_phy_write(dev, 0x0015, 0xF330);
- b43legacy_radio_write16(dev, 0x005A, 0x0060);
- b43legacy_radio_write16(dev, 0x0043,
- b43legacy_radio_read16(dev, 0x0043)
- & 0x00F0);
- b43legacy_phy_write(dev, 0x005A, 0x0480);
- b43legacy_phy_write(dev, 0x0059, 0x0810);
- b43legacy_phy_write(dev, 0x0058, 0x000D);
- udelay(20);
-
- nrssi1 = (s16)b43legacy_phy_read(dev, 0x0027);
- b43legacy_phy_write(dev, 0x0030, backup[3]);
- b43legacy_radio_write16(dev, 0x007A, backup[0]);
- b43legacy_write16(dev, 0x03E2, backup[11]);
- b43legacy_phy_write(dev, 0x0026, backup[4]);
- b43legacy_phy_write(dev, 0x0015, backup[5]);
- b43legacy_phy_write(dev, 0x002A, backup[6]);
- b43legacy_synth_pu_workaround(dev, phy->channel);
- if (phy->analog != 0)
- b43legacy_write16(dev, 0x03F4, backup[13]);
-
- b43legacy_phy_write(dev, 0x0020, backup[7]);
- b43legacy_phy_write(dev, 0x005A, backup[8]);
- b43legacy_phy_write(dev, 0x0059, backup[9]);
- b43legacy_phy_write(dev, 0x0058, backup[10]);
- b43legacy_radio_write16(dev, 0x0052, backup[1]);
- b43legacy_radio_write16(dev, 0x0043, backup[2]);
-
- if (nrssi0 == nrssi1)
- phy->nrssislope = 0x00010000;
- else
- phy->nrssislope = 0x00400000 / (nrssi0 - nrssi1);
-
- if (nrssi0 <= -4) {
- phy->nrssi[0] = nrssi0;
- phy->nrssi[1] = nrssi1;
- }
- break;
- case B43legacy_PHYTYPE_G:
- if (phy->radio_rev >= 9)
- return;
- if (phy->radio_rev == 8)
- b43legacy_calc_nrssi_offset(dev);
-
- b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
- b43legacy_phy_read(dev, B43legacy_PHY_G_CRS)
- & 0x7FFF);
- b43legacy_phy_write(dev, 0x0802,
- b43legacy_phy_read(dev, 0x0802) & 0xFFFC);
- backup[7] = b43legacy_read16(dev, 0x03E2);
- b43legacy_write16(dev, 0x03E2,
- b43legacy_read16(dev, 0x03E2) | 0x8000);
- backup[0] = b43legacy_radio_read16(dev, 0x007A);
- backup[1] = b43legacy_radio_read16(dev, 0x0052);
- backup[2] = b43legacy_radio_read16(dev, 0x0043);
- backup[3] = b43legacy_phy_read(dev, 0x0015);
- backup[4] = b43legacy_phy_read(dev, 0x005A);
- backup[5] = b43legacy_phy_read(dev, 0x0059);
- backup[6] = b43legacy_phy_read(dev, 0x0058);
- backup[8] = b43legacy_read16(dev, 0x03E6);
- backup[9] = b43legacy_read16(dev, B43legacy_MMIO_CHANNEL_EXT);
- if (phy->rev >= 3) {
- backup[10] = b43legacy_phy_read(dev, 0x002E);
- backup[11] = b43legacy_phy_read(dev, 0x002F);
- backup[12] = b43legacy_phy_read(dev, 0x080F);
- backup[13] = b43legacy_phy_read(dev,
- B43legacy_PHY_G_LO_CONTROL);
- backup[14] = b43legacy_phy_read(dev, 0x0801);
- backup[15] = b43legacy_phy_read(dev, 0x0060);
- backup[16] = b43legacy_phy_read(dev, 0x0014);
- backup[17] = b43legacy_phy_read(dev, 0x0478);
- b43legacy_phy_write(dev, 0x002E, 0);
- b43legacy_phy_write(dev, B43legacy_PHY_G_LO_CONTROL, 0);
- switch (phy->rev) {
- case 4: case 6: case 7:
- b43legacy_phy_write(dev, 0x0478,
- b43legacy_phy_read(dev,
- 0x0478) | 0x0100);
- b43legacy_phy_write(dev, 0x0801,
- b43legacy_phy_read(dev,
- 0x0801) | 0x0040);
- break;
- case 3: case 5:
- b43legacy_phy_write(dev, 0x0801,
- b43legacy_phy_read(dev,
- 0x0801) & 0xFFBF);
- break;
- }
- b43legacy_phy_write(dev, 0x0060,
- b43legacy_phy_read(dev, 0x0060)
- | 0x0040);
- b43legacy_phy_write(dev, 0x0014,
- b43legacy_phy_read(dev, 0x0014)
- | 0x0200);
- }
- b43legacy_radio_write16(dev, 0x007A,
- b43legacy_radio_read16(dev, 0x007A)
- | 0x0070);
- b43legacy_set_all_gains(dev, 0, 8, 0);
- b43legacy_radio_write16(dev, 0x007A,
- b43legacy_radio_read16(dev, 0x007A)
- & 0x00F7);
- if (phy->rev >= 2) {
- b43legacy_phy_write(dev, 0x0811,
- (b43legacy_phy_read(dev, 0x0811)
- & 0xFFCF) | 0x0030);
- b43legacy_phy_write(dev, 0x0812,
- (b43legacy_phy_read(dev, 0x0812)
- & 0xFFCF) | 0x0010);
- }
- b43legacy_radio_write16(dev, 0x007A,
- b43legacy_radio_read16(dev, 0x007A)
- | 0x0080);
- udelay(20);
-
- nrssi0 = (s16)((b43legacy_phy_read(dev, 0x047F) >> 8) & 0x003F);
- if (nrssi0 >= 0x0020)
- nrssi0 -= 0x0040;
-
- b43legacy_radio_write16(dev, 0x007A,
- b43legacy_radio_read16(dev, 0x007A)
- & 0x007F);
- if (phy->analog >= 2)
- b43legacy_phy_write(dev, 0x0003,
- (b43legacy_phy_read(dev, 0x0003)
- & 0xFF9F) | 0x0040);
-
- b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT,
- b43legacy_read16(dev,
- B43legacy_MMIO_CHANNEL_EXT) | 0x2000);
- b43legacy_radio_write16(dev, 0x007A,
- b43legacy_radio_read16(dev, 0x007A)
- | 0x000F);
- b43legacy_phy_write(dev, 0x0015, 0xF330);
- if (phy->rev >= 2) {
- b43legacy_phy_write(dev, 0x0812,
- (b43legacy_phy_read(dev, 0x0812)
- & 0xFFCF) | 0x0020);
- b43legacy_phy_write(dev, 0x0811,
- (b43legacy_phy_read(dev, 0x0811)
- & 0xFFCF) | 0x0020);
- }
-
- b43legacy_set_all_gains(dev, 3, 0, 1);
- if (phy->radio_rev == 8)
- b43legacy_radio_write16(dev, 0x0043, 0x001F);
- else {
- tmp = b43legacy_radio_read16(dev, 0x0052) & 0xFF0F;
- b43legacy_radio_write16(dev, 0x0052, tmp | 0x0060);
- tmp = b43legacy_radio_read16(dev, 0x0043) & 0xFFF0;
- b43legacy_radio_write16(dev, 0x0043, tmp | 0x0009);
- }
- b43legacy_phy_write(dev, 0x005A, 0x0480);
- b43legacy_phy_write(dev, 0x0059, 0x0810);
- b43legacy_phy_write(dev, 0x0058, 0x000D);
- udelay(20);
- nrssi1 = (s16)((b43legacy_phy_read(dev, 0x047F) >> 8) & 0x003F);
- if (nrssi1 >= 0x0020)
- nrssi1 -= 0x0040;
- if (nrssi0 == nrssi1)
- phy->nrssislope = 0x00010000;
- else
- phy->nrssislope = 0x00400000 / (nrssi0 - nrssi1);
- if (nrssi0 >= -4) {
- phy->nrssi[0] = nrssi1;
- phy->nrssi[1] = nrssi0;
- }
- if (phy->rev >= 3) {
- b43legacy_phy_write(dev, 0x002E, backup[10]);
- b43legacy_phy_write(dev, 0x002F, backup[11]);
- b43legacy_phy_write(dev, 0x080F, backup[12]);
- b43legacy_phy_write(dev, B43legacy_PHY_G_LO_CONTROL,
- backup[13]);
- }
- if (phy->rev >= 2) {
- b43legacy_phy_write(dev, 0x0812,
- b43legacy_phy_read(dev, 0x0812)
- & 0xFFCF);
- b43legacy_phy_write(dev, 0x0811,
- b43legacy_phy_read(dev, 0x0811)
- & 0xFFCF);
- }
-
- b43legacy_radio_write16(dev, 0x007A, backup[0]);
- b43legacy_radio_write16(dev, 0x0052, backup[1]);
- b43legacy_radio_write16(dev, 0x0043, backup[2]);
- b43legacy_write16(dev, 0x03E2, backup[7]);
- b43legacy_write16(dev, 0x03E6, backup[8]);
- b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, backup[9]);
- b43legacy_phy_write(dev, 0x0015, backup[3]);
- b43legacy_phy_write(dev, 0x005A, backup[4]);
- b43legacy_phy_write(dev, 0x0059, backup[5]);
- b43legacy_phy_write(dev, 0x0058, backup[6]);
- b43legacy_synth_pu_workaround(dev, phy->channel);
- b43legacy_phy_write(dev, 0x0802,
- b43legacy_phy_read(dev, 0x0802) | 0x0003);
- b43legacy_set_original_gains(dev);
- b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
- b43legacy_phy_read(dev, B43legacy_PHY_G_CRS)
- | 0x8000);
- if (phy->rev >= 3) {
- b43legacy_phy_write(dev, 0x0801, backup[14]);
- b43legacy_phy_write(dev, 0x0060, backup[15]);
- b43legacy_phy_write(dev, 0x0014, backup[16]);
- b43legacy_phy_write(dev, 0x0478, backup[17]);
- }
- b43legacy_nrssi_mem_update(dev);
- b43legacy_calc_nrssi_threshold(dev);
- break;
- default:
- B43legacy_BUG_ON(1);
- }
-}
-
-void b43legacy_calc_nrssi_threshold(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- s32 threshold;
- s32 a;
- s32 b;
- s16 tmp16;
- u16 tmp_u16;
-
- switch (phy->type) {
- case B43legacy_PHYTYPE_B: {
- if (phy->radio_ver != 0x2050)
- return;
- if (!(dev->dev->bus->sprom.boardflags_lo &
- B43legacy_BFL_RSSI))
- return;
-
- if (phy->radio_rev >= 6) {
- threshold = (phy->nrssi[1] - phy->nrssi[0]) * 32;
- threshold += 20 * (phy->nrssi[0] + 1);
- threshold /= 40;
- } else
- threshold = phy->nrssi[1] - 5;
-
- threshold = clamp_val(threshold, 0, 0x3E);
- b43legacy_phy_read(dev, 0x0020); /* dummy read */
- b43legacy_phy_write(dev, 0x0020, (((u16)threshold) << 8)
- | 0x001C);
-
- if (phy->radio_rev >= 6) {
- b43legacy_phy_write(dev, 0x0087, 0x0E0D);
- b43legacy_phy_write(dev, 0x0086, 0x0C0B);
- b43legacy_phy_write(dev, 0x0085, 0x0A09);
- b43legacy_phy_write(dev, 0x0084, 0x0808);
- b43legacy_phy_write(dev, 0x0083, 0x0808);
- b43legacy_phy_write(dev, 0x0082, 0x0604);
- b43legacy_phy_write(dev, 0x0081, 0x0302);
- b43legacy_phy_write(dev, 0x0080, 0x0100);
- }
- break;
- }
- case B43legacy_PHYTYPE_G:
- if (!phy->gmode ||
- !(dev->dev->bus->sprom.boardflags_lo &
- B43legacy_BFL_RSSI)) {
- tmp16 = b43legacy_nrssi_hw_read(dev, 0x20);
- if (tmp16 >= 0x20)
- tmp16 -= 0x40;
- if (tmp16 < 3)
- b43legacy_phy_write(dev, 0x048A,
- (b43legacy_phy_read(dev,
- 0x048A) & 0xF000) | 0x09EB);
- else
- b43legacy_phy_write(dev, 0x048A,
- (b43legacy_phy_read(dev,
- 0x048A) & 0xF000) | 0x0AED);
- } else {
- if (phy->interfmode ==
- B43legacy_RADIO_INTERFMODE_NONWLAN) {
- a = 0xE;
- b = 0xA;
- } else if (!phy->aci_wlan_automatic &&
- phy->aci_enable) {
- a = 0x13;
- b = 0x12;
- } else {
- a = 0xE;
- b = 0x11;
- }
-
- a = a * (phy->nrssi[1] - phy->nrssi[0]);
- a += (phy->nrssi[0] << 6);
- if (a < 32)
- a += 31;
- else
- a += 32;
- a = a >> 6;
- a = clamp_val(a, -31, 31);
-
- b = b * (phy->nrssi[1] - phy->nrssi[0]);
- b += (phy->nrssi[0] << 6);
- if (b < 32)
- b += 31;
- else
- b += 32;
- b = b >> 6;
- b = clamp_val(b, -31, 31);
-
- tmp_u16 = b43legacy_phy_read(dev, 0x048A) & 0xF000;
- tmp_u16 |= ((u32)b & 0x0000003F);
- tmp_u16 |= (((u32)a & 0x0000003F) << 6);
- b43legacy_phy_write(dev, 0x048A, tmp_u16);
- }
- break;
- default:
- B43legacy_BUG_ON(1);
- }
-}
-
-/* Stack implementation to save/restore values from the
- * interference mitigation code.
- * It is save to restore values in random order.
- */
-static void _stack_save(u32 *_stackptr, size_t *stackidx,
- u8 id, u16 offset, u16 value)
-{
- u32 *stackptr = &(_stackptr[*stackidx]);
-
- B43legacy_WARN_ON(!((offset & 0xE000) == 0x0000));
- B43legacy_WARN_ON(!((id & 0xF8) == 0x00));
- *stackptr = offset;
- *stackptr |= ((u32)id) << 13;
- *stackptr |= ((u32)value) << 16;
- (*stackidx)++;
- B43legacy_WARN_ON(!(*stackidx < B43legacy_INTERFSTACK_SIZE));
-}
-
-static u16 _stack_restore(u32 *stackptr,
- u8 id, u16 offset)
-{
- size_t i;
-
- B43legacy_WARN_ON(!((offset & 0xE000) == 0x0000));
- B43legacy_WARN_ON(!((id & 0xF8) == 0x00));
- for (i = 0; i < B43legacy_INTERFSTACK_SIZE; i++, stackptr++) {
- if ((*stackptr & 0x00001FFF) != offset)
- continue;
- if (((*stackptr & 0x00007000) >> 13) != id)
- continue;
- return ((*stackptr & 0xFFFF0000) >> 16);
- }
- B43legacy_BUG_ON(1);
-
- return 0;
-}
-
-#define phy_stacksave(offset) \
- do { \
- _stack_save(stack, &stackidx, 0x1, (offset), \
- b43legacy_phy_read(dev, (offset))); \
- } while (0)
-#define phy_stackrestore(offset) \
- do { \
- b43legacy_phy_write(dev, (offset), \
- _stack_restore(stack, 0x1, \
- (offset))); \
- } while (0)
-#define radio_stacksave(offset) \
- do { \
- _stack_save(stack, &stackidx, 0x2, (offset), \
- b43legacy_radio_read16(dev, (offset))); \
- } while (0)
-#define radio_stackrestore(offset) \
- do { \
- b43legacy_radio_write16(dev, (offset), \
- _stack_restore(stack, 0x2, \
- (offset))); \
- } while (0)
-#define ilt_stacksave(offset) \
- do { \
- _stack_save(stack, &stackidx, 0x3, (offset), \
- b43legacy_ilt_read(dev, (offset))); \
- } while (0)
-#define ilt_stackrestore(offset) \
- do { \
- b43legacy_ilt_write(dev, (offset), \
- _stack_restore(stack, 0x3, \
- (offset))); \
- } while (0)
-
-static void
-b43legacy_radio_interference_mitigation_enable(struct b43legacy_wldev *dev,
- int mode)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 tmp;
- u16 flipped;
- u32 tmp32;
- size_t stackidx = 0;
- u32 *stack = phy->interfstack;
-
- switch (mode) {
- case B43legacy_RADIO_INTERFMODE_NONWLAN:
- if (phy->rev != 1) {
- b43legacy_phy_write(dev, 0x042B,
- b43legacy_phy_read(dev, 0x042B)
- | 0x0800);
- b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
- b43legacy_phy_read(dev,
- B43legacy_PHY_G_CRS) & ~0x4000);
- break;
- }
- radio_stacksave(0x0078);
- tmp = (b43legacy_radio_read16(dev, 0x0078) & 0x001E);
- flipped = flip_4bit(tmp);
- if (flipped < 10 && flipped >= 8)
- flipped = 7;
- else if (flipped >= 10)
- flipped -= 3;
- flipped = flip_4bit(flipped);
- flipped = (flipped << 1) | 0x0020;
- b43legacy_radio_write16(dev, 0x0078, flipped);
-
- b43legacy_calc_nrssi_threshold(dev);
-
- phy_stacksave(0x0406);
- b43legacy_phy_write(dev, 0x0406, 0x7E28);
-
- b43legacy_phy_write(dev, 0x042B,
- b43legacy_phy_read(dev, 0x042B) | 0x0800);
- b43legacy_phy_write(dev, B43legacy_PHY_RADIO_BITFIELD,
- b43legacy_phy_read(dev,
- B43legacy_PHY_RADIO_BITFIELD) | 0x1000);
-
- phy_stacksave(0x04A0);
- b43legacy_phy_write(dev, 0x04A0,
- (b43legacy_phy_read(dev, 0x04A0) & 0xC0C0)
- | 0x0008);
- phy_stacksave(0x04A1);
- b43legacy_phy_write(dev, 0x04A1,
- (b43legacy_phy_read(dev, 0x04A1) & 0xC0C0)
- | 0x0605);
- phy_stacksave(0x04A2);
- b43legacy_phy_write(dev, 0x04A2,
- (b43legacy_phy_read(dev, 0x04A2) & 0xC0C0)
- | 0x0204);
- phy_stacksave(0x04A8);
- b43legacy_phy_write(dev, 0x04A8,
- (b43legacy_phy_read(dev, 0x04A8) & 0xC0C0)
- | 0x0803);
- phy_stacksave(0x04AB);
- b43legacy_phy_write(dev, 0x04AB,
- (b43legacy_phy_read(dev, 0x04AB) & 0xC0C0)
- | 0x0605);
-
- phy_stacksave(0x04A7);
- b43legacy_phy_write(dev, 0x04A7, 0x0002);
- phy_stacksave(0x04A3);
- b43legacy_phy_write(dev, 0x04A3, 0x287A);
- phy_stacksave(0x04A9);
- b43legacy_phy_write(dev, 0x04A9, 0x2027);
- phy_stacksave(0x0493);
- b43legacy_phy_write(dev, 0x0493, 0x32F5);
- phy_stacksave(0x04AA);
- b43legacy_phy_write(dev, 0x04AA, 0x2027);
- phy_stacksave(0x04AC);
- b43legacy_phy_write(dev, 0x04AC, 0x32F5);
- break;
- case B43legacy_RADIO_INTERFMODE_MANUALWLAN:
- if (b43legacy_phy_read(dev, 0x0033) & 0x0800)
- break;
-
- phy->aci_enable = true;
-
- phy_stacksave(B43legacy_PHY_RADIO_BITFIELD);
- phy_stacksave(B43legacy_PHY_G_CRS);
- if (phy->rev < 2)
- phy_stacksave(0x0406);
- else {
- phy_stacksave(0x04C0);
- phy_stacksave(0x04C1);
- }
- phy_stacksave(0x0033);
- phy_stacksave(0x04A7);
- phy_stacksave(0x04A3);
- phy_stacksave(0x04A9);
- phy_stacksave(0x04AA);
- phy_stacksave(0x04AC);
- phy_stacksave(0x0493);
- phy_stacksave(0x04A1);
- phy_stacksave(0x04A0);
- phy_stacksave(0x04A2);
- phy_stacksave(0x048A);
- phy_stacksave(0x04A8);
- phy_stacksave(0x04AB);
- if (phy->rev == 2) {
- phy_stacksave(0x04AD);
- phy_stacksave(0x04AE);
- } else if (phy->rev >= 3) {
- phy_stacksave(0x04AD);
- phy_stacksave(0x0415);
- phy_stacksave(0x0416);
- phy_stacksave(0x0417);
- ilt_stacksave(0x1A00 + 0x2);
- ilt_stacksave(0x1A00 + 0x3);
- }
- phy_stacksave(0x042B);
- phy_stacksave(0x048C);
-
- b43legacy_phy_write(dev, B43legacy_PHY_RADIO_BITFIELD,
- b43legacy_phy_read(dev,
- B43legacy_PHY_RADIO_BITFIELD) & ~0x1000);
- b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
- (b43legacy_phy_read(dev,
- B43legacy_PHY_G_CRS)
- & 0xFFFC) | 0x0002);
-
- b43legacy_phy_write(dev, 0x0033, 0x0800);
- b43legacy_phy_write(dev, 0x04A3, 0x2027);
- b43legacy_phy_write(dev, 0x04A9, 0x1CA8);
- b43legacy_phy_write(dev, 0x0493, 0x287A);
- b43legacy_phy_write(dev, 0x04AA, 0x1CA8);
- b43legacy_phy_write(dev, 0x04AC, 0x287A);
-
- b43legacy_phy_write(dev, 0x04A0,
- (b43legacy_phy_read(dev, 0x04A0)
- & 0xFFC0) | 0x001A);
- b43legacy_phy_write(dev, 0x04A7, 0x000D);
-
- if (phy->rev < 2)
- b43legacy_phy_write(dev, 0x0406, 0xFF0D);
- else if (phy->rev == 2) {
- b43legacy_phy_write(dev, 0x04C0, 0xFFFF);
- b43legacy_phy_write(dev, 0x04C1, 0x00A9);
- } else {
- b43legacy_phy_write(dev, 0x04C0, 0x00C1);
- b43legacy_phy_write(dev, 0x04C1, 0x0059);
- }
-
- b43legacy_phy_write(dev, 0x04A1,
- (b43legacy_phy_read(dev, 0x04A1)
- & 0xC0FF) | 0x1800);
- b43legacy_phy_write(dev, 0x04A1,
- (b43legacy_phy_read(dev, 0x04A1)
- & 0xFFC0) | 0x0015);
- b43legacy_phy_write(dev, 0x04A8,
- (b43legacy_phy_read(dev, 0x04A8)
- & 0xCFFF) | 0x1000);
- b43legacy_phy_write(dev, 0x04A8,
- (b43legacy_phy_read(dev, 0x04A8)
- & 0xF0FF) | 0x0A00);
- b43legacy_phy_write(dev, 0x04AB,
- (b43legacy_phy_read(dev, 0x04AB)
- & 0xCFFF) | 0x1000);
- b43legacy_phy_write(dev, 0x04AB,
- (b43legacy_phy_read(dev, 0x04AB)
- & 0xF0FF) | 0x0800);
- b43legacy_phy_write(dev, 0x04AB,
- (b43legacy_phy_read(dev, 0x04AB)
- & 0xFFCF) | 0x0010);
- b43legacy_phy_write(dev, 0x04AB,
- (b43legacy_phy_read(dev, 0x04AB)
- & 0xFFF0) | 0x0005);
- b43legacy_phy_write(dev, 0x04A8,
- (b43legacy_phy_read(dev, 0x04A8)
- & 0xFFCF) | 0x0010);
- b43legacy_phy_write(dev, 0x04A8,
- (b43legacy_phy_read(dev, 0x04A8)
- & 0xFFF0) | 0x0006);
- b43legacy_phy_write(dev, 0x04A2,
- (b43legacy_phy_read(dev, 0x04A2)
- & 0xF0FF) | 0x0800);
- b43legacy_phy_write(dev, 0x04A0,
- (b43legacy_phy_read(dev, 0x04A0)
- & 0xF0FF) | 0x0500);
- b43legacy_phy_write(dev, 0x04A2,
- (b43legacy_phy_read(dev, 0x04A2)
- & 0xFFF0) | 0x000B);
-
- if (phy->rev >= 3) {
- b43legacy_phy_write(dev, 0x048A,
- b43legacy_phy_read(dev, 0x048A)
- & ~0x8000);
- b43legacy_phy_write(dev, 0x0415,
- (b43legacy_phy_read(dev, 0x0415)
- & 0x8000) | 0x36D8);
- b43legacy_phy_write(dev, 0x0416,
- (b43legacy_phy_read(dev, 0x0416)
- & 0x8000) | 0x36D8);
- b43legacy_phy_write(dev, 0x0417,
- (b43legacy_phy_read(dev, 0x0417)
- & 0xFE00) | 0x016D);
- } else {
- b43legacy_phy_write(dev, 0x048A,
- b43legacy_phy_read(dev, 0x048A)
- | 0x1000);
- b43legacy_phy_write(dev, 0x048A,
- (b43legacy_phy_read(dev, 0x048A)
- & 0x9FFF) | 0x2000);
- tmp32 = b43legacy_shm_read32(dev, B43legacy_SHM_SHARED,
- B43legacy_UCODEFLAGS_OFFSET);
- if (!(tmp32 & 0x800)) {
- tmp32 |= 0x800;
- b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
- B43legacy_UCODEFLAGS_OFFSET,
- tmp32);
- }
- }
- if (phy->rev >= 2)
- b43legacy_phy_write(dev, 0x042B,
- b43legacy_phy_read(dev, 0x042B)
- | 0x0800);
- b43legacy_phy_write(dev, 0x048C,
- (b43legacy_phy_read(dev, 0x048C)
- & 0xF0FF) | 0x0200);
- if (phy->rev == 2) {
- b43legacy_phy_write(dev, 0x04AE,
- (b43legacy_phy_read(dev, 0x04AE)
- & 0xFF00) | 0x007F);
- b43legacy_phy_write(dev, 0x04AD,
- (b43legacy_phy_read(dev, 0x04AD)
- & 0x00FF) | 0x1300);
- } else if (phy->rev >= 6) {
- b43legacy_ilt_write(dev, 0x1A00 + 0x3, 0x007F);
- b43legacy_ilt_write(dev, 0x1A00 + 0x2, 0x007F);
- b43legacy_phy_write(dev, 0x04AD,
- b43legacy_phy_read(dev, 0x04AD)
- & 0x00FF);
- }
- b43legacy_calc_nrssi_slope(dev);
- break;
- default:
- B43legacy_BUG_ON(1);
- }
-}
-
-static void
-b43legacy_radio_interference_mitigation_disable(struct b43legacy_wldev *dev,
- int mode)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u32 tmp32;
- u32 *stack = phy->interfstack;
-
- switch (mode) {
- case B43legacy_RADIO_INTERFMODE_NONWLAN:
- if (phy->rev != 1) {
- b43legacy_phy_write(dev, 0x042B,
- b43legacy_phy_read(dev, 0x042B)
- & ~0x0800);
- b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
- b43legacy_phy_read(dev,
- B43legacy_PHY_G_CRS) | 0x4000);
- break;
- }
- phy_stackrestore(0x0078);
- b43legacy_calc_nrssi_threshold(dev);
- phy_stackrestore(0x0406);
- b43legacy_phy_write(dev, 0x042B,
- b43legacy_phy_read(dev, 0x042B) & ~0x0800);
- if (!dev->bad_frames_preempt)
- b43legacy_phy_write(dev, B43legacy_PHY_RADIO_BITFIELD,
- b43legacy_phy_read(dev,
- B43legacy_PHY_RADIO_BITFIELD)
- & ~(1 << 11));
- b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
- b43legacy_phy_read(dev, B43legacy_PHY_G_CRS)
- | 0x4000);
- phy_stackrestore(0x04A0);
- phy_stackrestore(0x04A1);
- phy_stackrestore(0x04A2);
- phy_stackrestore(0x04A8);
- phy_stackrestore(0x04AB);
- phy_stackrestore(0x04A7);
- phy_stackrestore(0x04A3);
- phy_stackrestore(0x04A9);
- phy_stackrestore(0x0493);
- phy_stackrestore(0x04AA);
- phy_stackrestore(0x04AC);
- break;
- case B43legacy_RADIO_INTERFMODE_MANUALWLAN:
- if (!(b43legacy_phy_read(dev, 0x0033) & 0x0800))
- break;
-
- phy->aci_enable = false;
-
- phy_stackrestore(B43legacy_PHY_RADIO_BITFIELD);
- phy_stackrestore(B43legacy_PHY_G_CRS);
- phy_stackrestore(0x0033);
- phy_stackrestore(0x04A3);
- phy_stackrestore(0x04A9);
- phy_stackrestore(0x0493);
- phy_stackrestore(0x04AA);
- phy_stackrestore(0x04AC);
- phy_stackrestore(0x04A0);
- phy_stackrestore(0x04A7);
- if (phy->rev >= 2) {
- phy_stackrestore(0x04C0);
- phy_stackrestore(0x04C1);
- } else
- phy_stackrestore(0x0406);
- phy_stackrestore(0x04A1);
- phy_stackrestore(0x04AB);
- phy_stackrestore(0x04A8);
- if (phy->rev == 2) {
- phy_stackrestore(0x04AD);
- phy_stackrestore(0x04AE);
- } else if (phy->rev >= 3) {
- phy_stackrestore(0x04AD);
- phy_stackrestore(0x0415);
- phy_stackrestore(0x0416);
- phy_stackrestore(0x0417);
- ilt_stackrestore(0x1A00 + 0x2);
- ilt_stackrestore(0x1A00 + 0x3);
- }
- phy_stackrestore(0x04A2);
- phy_stackrestore(0x04A8);
- phy_stackrestore(0x042B);
- phy_stackrestore(0x048C);
- tmp32 = b43legacy_shm_read32(dev, B43legacy_SHM_SHARED,
- B43legacy_UCODEFLAGS_OFFSET);
- if (tmp32 & 0x800) {
- tmp32 &= ~0x800;
- b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
- B43legacy_UCODEFLAGS_OFFSET,
- tmp32);
- }
- b43legacy_calc_nrssi_slope(dev);
- break;
- default:
- B43legacy_BUG_ON(1);
- }
-}
-
-#undef phy_stacksave
-#undef phy_stackrestore
-#undef radio_stacksave
-#undef radio_stackrestore
-#undef ilt_stacksave
-#undef ilt_stackrestore
-
-int b43legacy_radio_set_interference_mitigation(struct b43legacy_wldev *dev,
- int mode)
-{
- struct b43legacy_phy *phy = &dev->phy;
- int currentmode;
-
- if ((phy->type != B43legacy_PHYTYPE_G) ||
- (phy->rev == 0) || (!phy->gmode))
- return -ENODEV;
-
- phy->aci_wlan_automatic = false;
- switch (mode) {
- case B43legacy_RADIO_INTERFMODE_AUTOWLAN:
- phy->aci_wlan_automatic = true;
- if (phy->aci_enable)
- mode = B43legacy_RADIO_INTERFMODE_MANUALWLAN;
- else
- mode = B43legacy_RADIO_INTERFMODE_NONE;
- break;
- case B43legacy_RADIO_INTERFMODE_NONE:
- case B43legacy_RADIO_INTERFMODE_NONWLAN:
- case B43legacy_RADIO_INTERFMODE_MANUALWLAN:
- break;
- default:
- return -EINVAL;
- }
-
- currentmode = phy->interfmode;
- if (currentmode == mode)
- return 0;
- if (currentmode != B43legacy_RADIO_INTERFMODE_NONE)
- b43legacy_radio_interference_mitigation_disable(dev,
- currentmode);
-
- if (mode == B43legacy_RADIO_INTERFMODE_NONE) {
- phy->aci_enable = false;
- phy->aci_hw_rssi = false;
- } else
- b43legacy_radio_interference_mitigation_enable(dev, mode);
- phy->interfmode = mode;
-
- return 0;
-}
-
-u16 b43legacy_radio_calibrationvalue(struct b43legacy_wldev *dev)
-{
- u16 reg;
- u16 index;
- u16 ret;
-
- reg = b43legacy_radio_read16(dev, 0x0060);
- index = (reg & 0x001E) >> 1;
- ret = rcc_table[index] << 1;
- ret |= (reg & 0x0001);
- ret |= 0x0020;
-
- return ret;
-}
-
-#define LPD(L, P, D) (((L) << 2) | ((P) << 1) | ((D) << 0))
-static u16 b43legacy_get_812_value(struct b43legacy_wldev *dev, u8 lpd)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 loop_or = 0;
- u16 adj_loopback_gain = phy->loopback_gain[0];
- u8 loop;
- u16 extern_lna_control;
-
- if (!phy->gmode)
- return 0;
- if (!has_loopback_gain(phy)) {
- if (phy->rev < 7 || !(dev->dev->bus->sprom.boardflags_lo
- & B43legacy_BFL_EXTLNA)) {
- switch (lpd) {
- case LPD(0, 1, 1):
- return 0x0FB2;
- case LPD(0, 0, 1):
- return 0x00B2;
- case LPD(1, 0, 1):
- return 0x30B2;
- case LPD(1, 0, 0):
- return 0x30B3;
- default:
- B43legacy_BUG_ON(1);
- }
- } else {
- switch (lpd) {
- case LPD(0, 1, 1):
- return 0x8FB2;
- case LPD(0, 0, 1):
- return 0x80B2;
- case LPD(1, 0, 1):
- return 0x20B2;
- case LPD(1, 0, 0):
- return 0x20B3;
- default:
- B43legacy_BUG_ON(1);
- }
- }
- } else {
- if (phy->radio_rev == 8)
- adj_loopback_gain += 0x003E;
- else
- adj_loopback_gain += 0x0026;
- if (adj_loopback_gain >= 0x46) {
- adj_loopback_gain -= 0x46;
- extern_lna_control = 0x3000;
- } else if (adj_loopback_gain >= 0x3A) {
- adj_loopback_gain -= 0x3A;
- extern_lna_control = 0x2000;
- } else if (adj_loopback_gain >= 0x2E) {
- adj_loopback_gain -= 0x2E;
- extern_lna_control = 0x1000;
- } else {
- adj_loopback_gain -= 0x10;
- extern_lna_control = 0x0000;
- }
- for (loop = 0; loop < 16; loop++) {
- u16 tmp = adj_loopback_gain - 6 * loop;
- if (tmp < 6)
- break;
- }
-
- loop_or = (loop << 8) | extern_lna_control;
- if (phy->rev >= 7 && dev->dev->bus->sprom.boardflags_lo
- & B43legacy_BFL_EXTLNA) {
- if (extern_lna_control)
- loop_or |= 0x8000;
- switch (lpd) {
- case LPD(0, 1, 1):
- return 0x8F92;
- case LPD(0, 0, 1):
- return (0x8092 | loop_or);
- case LPD(1, 0, 1):
- return (0x2092 | loop_or);
- case LPD(1, 0, 0):
- return (0x2093 | loop_or);
- default:
- B43legacy_BUG_ON(1);
- }
- } else {
- switch (lpd) {
- case LPD(0, 1, 1):
- return 0x0F92;
- case LPD(0, 0, 1):
- case LPD(1, 0, 1):
- return (0x0092 | loop_or);
- case LPD(1, 0, 0):
- return (0x0093 | loop_or);
- default:
- B43legacy_BUG_ON(1);
- }
- }
- }
- return 0;
-}
-
-u16 b43legacy_radio_init2050(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 backup[21] = { 0 };
- u16 ret;
- u16 i;
- u16 j;
- u32 tmp1 = 0;
- u32 tmp2 = 0;
-
- backup[0] = b43legacy_radio_read16(dev, 0x0043);
- backup[14] = b43legacy_radio_read16(dev, 0x0051);
- backup[15] = b43legacy_radio_read16(dev, 0x0052);
- backup[1] = b43legacy_phy_read(dev, 0x0015);
- backup[16] = b43legacy_phy_read(dev, 0x005A);
- backup[17] = b43legacy_phy_read(dev, 0x0059);
- backup[18] = b43legacy_phy_read(dev, 0x0058);
- if (phy->type == B43legacy_PHYTYPE_B) {
- backup[2] = b43legacy_phy_read(dev, 0x0030);
- backup[3] = b43legacy_read16(dev, 0x03EC);
- b43legacy_phy_write(dev, 0x0030, 0x00FF);
- b43legacy_write16(dev, 0x03EC, 0x3F3F);
- } else {
- if (phy->gmode) {
- backup[4] = b43legacy_phy_read(dev, 0x0811);
- backup[5] = b43legacy_phy_read(dev, 0x0812);
- backup[6] = b43legacy_phy_read(dev, 0x0814);
- backup[7] = b43legacy_phy_read(dev, 0x0815);
- backup[8] = b43legacy_phy_read(dev,
- B43legacy_PHY_G_CRS);
- backup[9] = b43legacy_phy_read(dev, 0x0802);
- b43legacy_phy_write(dev, 0x0814,
- (b43legacy_phy_read(dev, 0x0814)
- | 0x0003));
- b43legacy_phy_write(dev, 0x0815,
- (b43legacy_phy_read(dev, 0x0815)
- & 0xFFFC));
- b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
- (b43legacy_phy_read(dev,
- B43legacy_PHY_G_CRS) & 0x7FFF));
- b43legacy_phy_write(dev, 0x0802,
- (b43legacy_phy_read(dev, 0x0802)
- & 0xFFFC));
- if (phy->rev > 1) { /* loopback gain enabled */
- backup[19] = b43legacy_phy_read(dev, 0x080F);
- backup[20] = b43legacy_phy_read(dev, 0x0810);
- if (phy->rev >= 3)
- b43legacy_phy_write(dev, 0x080F,
- 0xC020);
- else
- b43legacy_phy_write(dev, 0x080F,
- 0x8020);
- b43legacy_phy_write(dev, 0x0810, 0x0000);
- }
- b43legacy_phy_write(dev, 0x0812,
- b43legacy_get_812_value(dev,
- LPD(0, 1, 1)));
- if (phy->rev < 7 ||
- !(dev->dev->bus->sprom.boardflags_lo
- & B43legacy_BFL_EXTLNA))
- b43legacy_phy_write(dev, 0x0811, 0x01B3);
- else
- b43legacy_phy_write(dev, 0x0811, 0x09B3);
- }
- }
- b43legacy_write16(dev, B43legacy_MMIO_PHY_RADIO,
- (b43legacy_read16(dev, B43legacy_MMIO_PHY_RADIO)
- | 0x8000));
- backup[10] = b43legacy_phy_read(dev, 0x0035);
- b43legacy_phy_write(dev, 0x0035,
- (b43legacy_phy_read(dev, 0x0035) & 0xFF7F));
- backup[11] = b43legacy_read16(dev, 0x03E6);
- backup[12] = b43legacy_read16(dev, B43legacy_MMIO_CHANNEL_EXT);
-
- /* Initialization */
- if (phy->analog == 0)
- b43legacy_write16(dev, 0x03E6, 0x0122);
- else {
- if (phy->analog >= 2)
- b43legacy_phy_write(dev, 0x0003,
- (b43legacy_phy_read(dev, 0x0003)
- & 0xFFBF) | 0x0040);
- b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT,
- (b43legacy_read16(dev,
- B43legacy_MMIO_CHANNEL_EXT) | 0x2000));
- }
-
- ret = b43legacy_radio_calibrationvalue(dev);
-
- if (phy->type == B43legacy_PHYTYPE_B)
- b43legacy_radio_write16(dev, 0x0078, 0x0026);
-
- if (phy->gmode)
- b43legacy_phy_write(dev, 0x0812,
- b43legacy_get_812_value(dev,
- LPD(0, 1, 1)));
- b43legacy_phy_write(dev, 0x0015, 0xBFAF);
- b43legacy_phy_write(dev, 0x002B, 0x1403);
- if (phy->gmode)
- b43legacy_phy_write(dev, 0x0812,
- b43legacy_get_812_value(dev,
- LPD(0, 0, 1)));
- b43legacy_phy_write(dev, 0x0015, 0xBFA0);
- b43legacy_radio_write16(dev, 0x0051,
- (b43legacy_radio_read16(dev, 0x0051)
- | 0x0004));
- if (phy->radio_rev == 8)
- b43legacy_radio_write16(dev, 0x0043, 0x001F);
- else {
- b43legacy_radio_write16(dev, 0x0052, 0x0000);
- b43legacy_radio_write16(dev, 0x0043,
- (b43legacy_radio_read16(dev, 0x0043)
- & 0xFFF0) | 0x0009);
- }
- b43legacy_phy_write(dev, 0x0058, 0x0000);
-
- for (i = 0; i < 16; i++) {
- b43legacy_phy_write(dev, 0x005A, 0x0480);
- b43legacy_phy_write(dev, 0x0059, 0xC810);
- b43legacy_phy_write(dev, 0x0058, 0x000D);
- if (phy->gmode)
- b43legacy_phy_write(dev, 0x0812,
- b43legacy_get_812_value(dev,
- LPD(1, 0, 1)));
- b43legacy_phy_write(dev, 0x0015, 0xAFB0);
- udelay(10);
- if (phy->gmode)
- b43legacy_phy_write(dev, 0x0812,
- b43legacy_get_812_value(dev,
- LPD(1, 0, 1)));
- b43legacy_phy_write(dev, 0x0015, 0xEFB0);
- udelay(10);
- if (phy->gmode)
- b43legacy_phy_write(dev, 0x0812,
- b43legacy_get_812_value(dev,
- LPD(1, 0, 0)));
- b43legacy_phy_write(dev, 0x0015, 0xFFF0);
- udelay(20);
- tmp1 += b43legacy_phy_read(dev, 0x002D);
- b43legacy_phy_write(dev, 0x0058, 0x0000);
- if (phy->gmode)
- b43legacy_phy_write(dev, 0x0812,
- b43legacy_get_812_value(dev,
- LPD(1, 0, 1)));
- b43legacy_phy_write(dev, 0x0015, 0xAFB0);
- }
-
- tmp1++;
- tmp1 >>= 9;
- udelay(10);
- b43legacy_phy_write(dev, 0x0058, 0x0000);
-
- for (i = 0; i < 16; i++) {
- b43legacy_radio_write16(dev, 0x0078, (flip_4bit(i) << 1)
- | 0x0020);
- backup[13] = b43legacy_radio_read16(dev, 0x0078);
- udelay(10);
- for (j = 0; j < 16; j++) {
- b43legacy_phy_write(dev, 0x005A, 0x0D80);
- b43legacy_phy_write(dev, 0x0059, 0xC810);
- b43legacy_phy_write(dev, 0x0058, 0x000D);
- if (phy->gmode)
- b43legacy_phy_write(dev, 0x0812,
- b43legacy_get_812_value(dev,
- LPD(1, 0, 1)));
- b43legacy_phy_write(dev, 0x0015, 0xAFB0);
- udelay(10);
- if (phy->gmode)
- b43legacy_phy_write(dev, 0x0812,
- b43legacy_get_812_value(dev,
- LPD(1, 0, 1)));
- b43legacy_phy_write(dev, 0x0015, 0xEFB0);
- udelay(10);
- if (phy->gmode)
- b43legacy_phy_write(dev, 0x0812,
- b43legacy_get_812_value(dev,
- LPD(1, 0, 0)));
- b43legacy_phy_write(dev, 0x0015, 0xFFF0);
- udelay(10);
- tmp2 += b43legacy_phy_read(dev, 0x002D);
- b43legacy_phy_write(dev, 0x0058, 0x0000);
- if (phy->gmode)
- b43legacy_phy_write(dev, 0x0812,
- b43legacy_get_812_value(dev,
- LPD(1, 0, 1)));
- b43legacy_phy_write(dev, 0x0015, 0xAFB0);
- }
- tmp2++;
- tmp2 >>= 8;
- if (tmp1 < tmp2)
- break;
- }
-
- /* Restore the registers */
- b43legacy_phy_write(dev, 0x0015, backup[1]);
- b43legacy_radio_write16(dev, 0x0051, backup[14]);
- b43legacy_radio_write16(dev, 0x0052, backup[15]);
- b43legacy_radio_write16(dev, 0x0043, backup[0]);
- b43legacy_phy_write(dev, 0x005A, backup[16]);
- b43legacy_phy_write(dev, 0x0059, backup[17]);
- b43legacy_phy_write(dev, 0x0058, backup[18]);
- b43legacy_write16(dev, 0x03E6, backup[11]);
- if (phy->analog != 0)
- b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, backup[12]);
- b43legacy_phy_write(dev, 0x0035, backup[10]);
- b43legacy_radio_selectchannel(dev, phy->channel, 1);
- if (phy->type == B43legacy_PHYTYPE_B) {
- b43legacy_phy_write(dev, 0x0030, backup[2]);
- b43legacy_write16(dev, 0x03EC, backup[3]);
- } else {
- if (phy->gmode) {
- b43legacy_write16(dev, B43legacy_MMIO_PHY_RADIO,
- (b43legacy_read16(dev,
- B43legacy_MMIO_PHY_RADIO) & 0x7FFF));
- b43legacy_phy_write(dev, 0x0811, backup[4]);
- b43legacy_phy_write(dev, 0x0812, backup[5]);
- b43legacy_phy_write(dev, 0x0814, backup[6]);
- b43legacy_phy_write(dev, 0x0815, backup[7]);
- b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
- backup[8]);
- b43legacy_phy_write(dev, 0x0802, backup[9]);
- if (phy->rev > 1) {
- b43legacy_phy_write(dev, 0x080F, backup[19]);
- b43legacy_phy_write(dev, 0x0810, backup[20]);
- }
- }
- }
- if (i >= 15)
- ret = backup[13];
-
- return ret;
-}
-
-static inline
-u16 freq_r3A_value(u16 frequency)
-{
- u16 value;
-
- if (frequency < 5091)
- value = 0x0040;
- else if (frequency < 5321)
- value = 0x0000;
- else if (frequency < 5806)
- value = 0x0080;
- else
- value = 0x0040;
-
- return value;
-}
-
-int b43legacy_radio_selectchannel(struct b43legacy_wldev *dev,
- u8 channel,
- int synthetic_pu_workaround)
-{
- struct b43legacy_phy *phy = &dev->phy;
-
- if (channel == 0xFF) {
- switch (phy->type) {
- case B43legacy_PHYTYPE_B:
- case B43legacy_PHYTYPE_G:
- channel = B43legacy_RADIO_DEFAULT_CHANNEL_BG;
- break;
- default:
- B43legacy_WARN_ON(1);
- }
- }
-
-/* TODO: Check if channel is valid - return -EINVAL if not */
- if (synthetic_pu_workaround)
- b43legacy_synth_pu_workaround(dev, channel);
-
- b43legacy_write16(dev, B43legacy_MMIO_CHANNEL,
- channel2freq_bg(channel));
-
- if (channel == 14) {
- if (dev->dev->bus->sprom.country_code == 5) /* JAPAN) */
- b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
- B43legacy_UCODEFLAGS_OFFSET,
- b43legacy_shm_read32(dev,
- B43legacy_SHM_SHARED,
- B43legacy_UCODEFLAGS_OFFSET)
- & ~(1 << 7));
- else
- b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
- B43legacy_UCODEFLAGS_OFFSET,
- b43legacy_shm_read32(dev,
- B43legacy_SHM_SHARED,
- B43legacy_UCODEFLAGS_OFFSET)
- | (1 << 7));
- b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT,
- b43legacy_read16(dev,
- B43legacy_MMIO_CHANNEL_EXT) | (1 << 11));
- } else
- b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT,
- b43legacy_read16(dev,
- B43legacy_MMIO_CHANNEL_EXT) & 0xF7BF);
-
- phy->channel = channel;
- /*XXX: Using the longer of 2 timeouts (8000 vs 2000 usecs). Specs states
- * that 2000 usecs might suffice. */
- msleep(8);
-
- return 0;
-}
-
-void b43legacy_radio_set_txantenna(struct b43legacy_wldev *dev, u32 val)
-{
- u16 tmp;
-
- val <<= 8;
- tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x0022) & 0xFCFF;
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0022, tmp | val);
- tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x03A8) & 0xFCFF;
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x03A8, tmp | val);
- tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x0054) & 0xFCFF;
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0054, tmp | val);
-}
-
-/* http://bcm-specs.sipsolutions.net/TX_Gain_Base_Band */
-static u16 b43legacy_get_txgain_base_band(u16 txpower)
-{
- u16 ret;
-
- B43legacy_WARN_ON(txpower > 63);
-
- if (txpower >= 54)
- ret = 2;
- else if (txpower >= 49)
- ret = 4;
- else if (txpower >= 44)
- ret = 5;
- else
- ret = 6;
-
- return ret;
-}
-
-/* http://bcm-specs.sipsolutions.net/TX_Gain_Radio_Frequency_Power_Amplifier */
-static u16 b43legacy_get_txgain_freq_power_amp(u16 txpower)
-{
- u16 ret;
-
- B43legacy_WARN_ON(txpower > 63);
-
- if (txpower >= 32)
- ret = 0;
- else if (txpower >= 25)
- ret = 1;
- else if (txpower >= 20)
- ret = 2;
- else if (txpower >= 12)
- ret = 3;
- else
- ret = 4;
-
- return ret;
-}
-
-/* http://bcm-specs.sipsolutions.net/TX_Gain_Digital_Analog_Converter */
-static u16 b43legacy_get_txgain_dac(u16 txpower)
-{
- u16 ret;
-
- B43legacy_WARN_ON(txpower > 63);
-
- if (txpower >= 54)
- ret = txpower - 53;
- else if (txpower >= 49)
- ret = txpower - 42;
- else if (txpower >= 44)
- ret = txpower - 37;
- else if (txpower >= 32)
- ret = txpower - 32;
- else if (txpower >= 25)
- ret = txpower - 20;
- else if (txpower >= 20)
- ret = txpower - 13;
- else if (txpower >= 12)
- ret = txpower - 8;
- else
- ret = txpower;
-
- return ret;
-}
-
-void b43legacy_radio_set_txpower_a(struct b43legacy_wldev *dev, u16 txpower)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 pamp;
- u16 base;
- u16 dac;
- u16 ilt;
-
- txpower = clamp_val(txpower, 0, 63);
-
- pamp = b43legacy_get_txgain_freq_power_amp(txpower);
- pamp <<= 5;
- pamp &= 0x00E0;
- b43legacy_phy_write(dev, 0x0019, pamp);
-
- base = b43legacy_get_txgain_base_band(txpower);
- base &= 0x000F;
- b43legacy_phy_write(dev, 0x0017, base | 0x0020);
-
- ilt = b43legacy_ilt_read(dev, 0x3001);
- ilt &= 0x0007;
-
- dac = b43legacy_get_txgain_dac(txpower);
- dac <<= 3;
- dac |= ilt;
-
- b43legacy_ilt_write(dev, 0x3001, dac);
-
- phy->txpwr_offset = txpower;
-
- /* TODO: FuncPlaceholder (Adjust BB loft cancel) */
-}
-
-void b43legacy_radio_set_txpower_bg(struct b43legacy_wldev *dev,
- u16 baseband_attenuation,
- u16 radio_attenuation,
- u16 txpower)
-{
- struct b43legacy_phy *phy = &dev->phy;
-
- if (baseband_attenuation == 0xFFFF)
- baseband_attenuation = phy->bbatt;
- if (radio_attenuation == 0xFFFF)
- radio_attenuation = phy->rfatt;
- if (txpower == 0xFFFF)
- txpower = phy->txctl1;
- phy->bbatt = baseband_attenuation;
- phy->rfatt = radio_attenuation;
- phy->txctl1 = txpower;
-
- B43legacy_WARN_ON(baseband_attenuation > 11);
- if (phy->radio_rev < 6)
- B43legacy_WARN_ON(radio_attenuation > 9);
- else
- B43legacy_WARN_ON(radio_attenuation > 31);
- B43legacy_WARN_ON(txpower > 7);
-
- b43legacy_phy_set_baseband_attenuation(dev, baseband_attenuation);
- b43legacy_radio_write16(dev, 0x0043, radio_attenuation);
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0064,
- radio_attenuation);
- if (phy->radio_ver == 0x2050)
- b43legacy_radio_write16(dev, 0x0052,
- (b43legacy_radio_read16(dev, 0x0052)
- & ~0x0070) | ((txpower << 4) & 0x0070));
- /* FIXME: The spec is very weird and unclear here. */
- if (phy->type == B43legacy_PHYTYPE_G)
- b43legacy_phy_lo_adjust(dev, 0);
-}
-
-u16 b43legacy_default_baseband_attenuation(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
-
- if (phy->radio_ver == 0x2050 && phy->radio_rev < 6)
- return 0;
- return 2;
-}
-
-u16 b43legacy_default_radio_attenuation(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 att = 0xFFFF;
-
- switch (phy->radio_ver) {
- case 0x2053:
- switch (phy->radio_rev) {
- case 1:
- att = 6;
- break;
- }
- break;
- case 0x2050:
- switch (phy->radio_rev) {
- case 0:
- att = 5;
- break;
- case 1:
- if (phy->type == B43legacy_PHYTYPE_G) {
- if (is_bcm_board_vendor(dev) &&
- dev->dev->bus->boardinfo.type == 0x421 &&
- dev->dev->bus->sprom.board_rev >= 30)
- att = 3;
- else if (is_bcm_board_vendor(dev) &&
- dev->dev->bus->boardinfo.type == 0x416)
- att = 3;
- else
- att = 1;
- } else {
- if (is_bcm_board_vendor(dev) &&
- dev->dev->bus->boardinfo.type == 0x421 &&
- dev->dev->bus->sprom.board_rev >= 30)
- att = 7;
- else
- att = 6;
- }
- break;
- case 2:
- if (phy->type == B43legacy_PHYTYPE_G) {
- if (is_bcm_board_vendor(dev) &&
- dev->dev->bus->boardinfo.type == 0x421 &&
- dev->dev->bus->sprom.board_rev >= 30)
- att = 3;
- else if (is_bcm_board_vendor(dev) &&
- dev->dev->bus->boardinfo.type ==
- 0x416)
- att = 5;
- else if (dev->dev->bus->chip_id == 0x4320)
- att = 4;
- else
- att = 3;
- } else
- att = 6;
- break;
- case 3:
- att = 5;
- break;
- case 4:
- case 5:
- att = 1;
- break;
- case 6:
- case 7:
- att = 5;
- break;
- case 8:
- att = 0x1A;
- break;
- case 9:
- default:
- att = 5;
- }
- }
- if (is_bcm_board_vendor(dev) &&
- dev->dev->bus->boardinfo.type == 0x421) {
- if (dev->dev->bus->sprom.board_rev < 0x43)
- att = 2;
- else if (dev->dev->bus->sprom.board_rev < 0x51)
- att = 3;
- }
- if (att == 0xFFFF)
- att = 5;
-
- return att;
-}
-
-u16 b43legacy_default_txctl1(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
-
- if (phy->radio_ver != 0x2050)
- return 0;
- if (phy->radio_rev == 1)
- return 3;
- if (phy->radio_rev < 6)
- return 2;
- if (phy->radio_rev == 8)
- return 1;
- return 0;
-}
-
-void b43legacy_radio_turn_on(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- int err;
- u8 channel;
-
- might_sleep();
-
- if (phy->radio_on)
- return;
-
- switch (phy->type) {
- case B43legacy_PHYTYPE_B:
- case B43legacy_PHYTYPE_G:
- b43legacy_phy_write(dev, 0x0015, 0x8000);
- b43legacy_phy_write(dev, 0x0015, 0xCC00);
- b43legacy_phy_write(dev, 0x0015,
- (phy->gmode ? 0x00C0 : 0x0000));
- if (phy->radio_off_context.valid) {
- /* Restore the RFover values. */
- b43legacy_phy_write(dev, B43legacy_PHY_RFOVER,
- phy->radio_off_context.rfover);
- b43legacy_phy_write(dev, B43legacy_PHY_RFOVERVAL,
- phy->radio_off_context.rfoverval);
- phy->radio_off_context.valid = false;
- }
- channel = phy->channel;
- err = b43legacy_radio_selectchannel(dev,
- B43legacy_RADIO_DEFAULT_CHANNEL_BG, 1);
- err |= b43legacy_radio_selectchannel(dev, channel, 0);
- B43legacy_WARN_ON(err);
- break;
- default:
- B43legacy_BUG_ON(1);
- }
- phy->radio_on = true;
-}
-
-void b43legacy_radio_turn_off(struct b43legacy_wldev *dev, bool force)
-{
- struct b43legacy_phy *phy = &dev->phy;
-
- if (!phy->radio_on && !force)
- return;
-
- if (phy->type == B43legacy_PHYTYPE_G && dev->dev->id.revision >= 5) {
- u16 rfover, rfoverval;
-
- rfover = b43legacy_phy_read(dev, B43legacy_PHY_RFOVER);
- rfoverval = b43legacy_phy_read(dev, B43legacy_PHY_RFOVERVAL);
- if (!force) {
- phy->radio_off_context.rfover = rfover;
- phy->radio_off_context.rfoverval = rfoverval;
- phy->radio_off_context.valid = true;
- }
- b43legacy_phy_write(dev, B43legacy_PHY_RFOVER, rfover | 0x008C);
- b43legacy_phy_write(dev, B43legacy_PHY_RFOVERVAL,
- rfoverval & 0xFF73);
- } else
- b43legacy_phy_write(dev, 0x0015, 0xAA00);
- phy->radio_on = false;
- b43legacydbg(dev->wl, "Radio initialized\n");
-}
-
-void b43legacy_radio_clear_tssi(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
-
- switch (phy->type) {
- case B43legacy_PHYTYPE_B:
- case B43legacy_PHYTYPE_G:
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0058,
- 0x7F7F);
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x005a,
- 0x7F7F);
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0070,
- 0x7F7F);
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0072,
- 0x7F7F);
- break;
- }
-}
+++ /dev/null
-/*
-
- Broadcom B43legacy wireless driver
-
- Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
- Stefano Brivio <stefano.brivio@polimi.it>
- Michael Buesch <m@bues.ch>
- Danny van Dyk <kugelfang@gentoo.org>
- Andreas Jaggi <andreas.jaggi@waterwave.ch>
-
- Some parts of the code in this file are derived from the ipw2200
- driver Copyright(c) 2003 - 2004 Intel Corporation.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
- Boston, MA 02110-1301, USA.
-
-*/
-
-#ifndef B43legacy_RADIO_H_
-#define B43legacy_RADIO_H_
-
-#include "b43legacy.h"
-
-
-#define B43legacy_RADIO_DEFAULT_CHANNEL_BG 6
-
-/* Force antenna 0. */
-#define B43legacy_RADIO_TXANTENNA_0 0
-/* Force antenna 1. */
-#define B43legacy_RADIO_TXANTENNA_1 1
-/* Use the RX antenna, that was selected for the most recently
- * received good PLCP header.
- */
-#define B43legacy_RADIO_TXANTENNA_LASTPLCP 3
-#define B43legacy_RADIO_TXANTENNA_DEFAULT B43legacy_RADIO_TXANTENNA_LASTPLCP
-
-#define B43legacy_RADIO_INTERFMODE_NONE 0
-#define B43legacy_RADIO_INTERFMODE_NONWLAN 1
-#define B43legacy_RADIO_INTERFMODE_MANUALWLAN 2
-#define B43legacy_RADIO_INTERFMODE_AUTOWLAN 3
-
-
-void b43legacy_radio_lock(struct b43legacy_wldev *dev);
-void b43legacy_radio_unlock(struct b43legacy_wldev *dev);
-
-u16 b43legacy_radio_read16(struct b43legacy_wldev *dev, u16 offset);
-void b43legacy_radio_write16(struct b43legacy_wldev *dev, u16 offset, u16 val);
-
-u16 b43legacy_radio_init2050(struct b43legacy_wldev *dev);
-
-void b43legacy_radio_turn_on(struct b43legacy_wldev *dev);
-void b43legacy_radio_turn_off(struct b43legacy_wldev *dev, bool force);
-
-int b43legacy_radio_selectchannel(struct b43legacy_wldev *dev, u8 channel,
- int synthetic_pu_workaround);
-
-void b43legacy_radio_set_txpower_a(struct b43legacy_wldev *dev, u16 txpower);
-void b43legacy_radio_set_txpower_bg(struct b43legacy_wldev *dev,
- u16 baseband_attenuation, u16 attenuation,
- u16 txpower);
-
-u16 b43legacy_default_baseband_attenuation(struct b43legacy_wldev *dev);
-u16 b43legacy_default_radio_attenuation(struct b43legacy_wldev *dev);
-u16 b43legacy_default_txctl1(struct b43legacy_wldev *dev);
-
-void b43legacy_radio_set_txantenna(struct b43legacy_wldev *dev, u32 val);
-
-void b43legacy_radio_clear_tssi(struct b43legacy_wldev *dev);
-
-u8 b43legacy_radio_aci_detect(struct b43legacy_wldev *dev, u8 channel);
-u8 b43legacy_radio_aci_scan(struct b43legacy_wldev *dev);
-
-int b43legacy_radio_set_interference_mitigation(struct b43legacy_wldev *dev,
- int mode);
-
-void b43legacy_calc_nrssi_slope(struct b43legacy_wldev *dev);
-void b43legacy_calc_nrssi_threshold(struct b43legacy_wldev *dev);
-s16 b43legacy_nrssi_hw_read(struct b43legacy_wldev *dev, u16 offset);
-void b43legacy_nrssi_hw_write(struct b43legacy_wldev *dev, u16 offset, s16 val);
-void b43legacy_nrssi_hw_update(struct b43legacy_wldev *dev, u16 val);
-void b43legacy_nrssi_mem_update(struct b43legacy_wldev *dev);
-
-u16 b43legacy_radio_calibrationvalue(struct b43legacy_wldev *dev);
-
-#endif /* B43legacy_RADIO_H_ */
+++ /dev/null
-/*
-
- Broadcom B43 wireless driver
- RFKILL support
-
- Copyright (c) 2007 Michael Buesch <m@bues.ch>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
- Boston, MA 02110-1301, USA.
-
-*/
-
-#include "radio.h"
-#include "b43legacy.h"
-
-
-/* Returns TRUE, if the radio is enabled in hardware. */
-bool b43legacy_is_hw_radio_enabled(struct b43legacy_wldev *dev)
-{
- if (dev->dev->id.revision >= 3) {
- if (!(b43legacy_read32(dev, B43legacy_MMIO_RADIO_HWENABLED_HI)
- & B43legacy_MMIO_RADIO_HWENABLED_HI_MASK))
- return true;
- } else {
- /* To prevent CPU fault on PPC, do not read a register
- * unless the interface is started; however, on resume
- * for hibernation, this routine is entered early. When
- * that happens, unconditionally return TRUE.
- */
- if (b43legacy_status(dev) < B43legacy_STAT_STARTED)
- return true;
- if (b43legacy_read16(dev, B43legacy_MMIO_RADIO_HWENABLED_LO)
- & B43legacy_MMIO_RADIO_HWENABLED_LO_MASK)
- return true;
- }
- return false;
-}
-
-/* The poll callback for the hardware button. */
-void b43legacy_rfkill_poll(struct ieee80211_hw *hw)
-{
- struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
- struct b43legacy_wldev *dev = wl->current_dev;
- struct ssb_bus *bus = dev->dev->bus;
- bool enabled;
- bool brought_up = false;
-
- mutex_lock(&wl->mutex);
- if (unlikely(b43legacy_status(dev) < B43legacy_STAT_INITIALIZED)) {
- if (ssb_bus_powerup(bus, 0)) {
- mutex_unlock(&wl->mutex);
- return;
- }
- ssb_device_enable(dev->dev, 0);
- brought_up = true;
- }
-
- enabled = b43legacy_is_hw_radio_enabled(dev);
-
- if (unlikely(enabled != dev->radio_hw_enable)) {
- dev->radio_hw_enable = enabled;
- b43legacyinfo(wl, "Radio hardware status changed to %s\n",
- enabled ? "ENABLED" : "DISABLED");
- wiphy_rfkill_set_hw_state(hw->wiphy, !enabled);
- if (enabled != dev->phy.radio_on) {
- if (enabled)
- b43legacy_radio_turn_on(dev);
- else
- b43legacy_radio_turn_off(dev, 0);
- }
- }
-
- if (brought_up) {
- ssb_device_disable(dev->dev, 0);
- ssb_bus_may_powerdown(bus);
- }
-
- mutex_unlock(&wl->mutex);
-}
+++ /dev/null
-#ifndef B43legacy_RFKILL_H_
-#define B43legacy_RFKILL_H_
-
-struct ieee80211_hw;
-struct b43legacy_wldev;
-
-void b43legacy_rfkill_poll(struct ieee80211_hw *hw);
-
-bool b43legacy_is_hw_radio_enabled(struct b43legacy_wldev *dev);
-
-#endif /* B43legacy_RFKILL_H_ */
+++ /dev/null
-/*
-
- Broadcom B43legacy wireless driver
-
- SYSFS support routines
-
- Copyright (c) 2006 Michael Buesch <m@bues.ch>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
- Boston, MA 02110-1301, USA.
-
-*/
-
-#include "sysfs.h"
-#include "b43legacy.h"
-#include "main.h"
-#include "phy.h"
-#include "radio.h"
-
-#include <linux/capability.h>
-
-
-#define GENERIC_FILESIZE 64
-
-
-static int get_integer(const char *buf, size_t count)
-{
- char tmp[10 + 1] = { 0 };
- int ret = -EINVAL;
-
- if (count == 0)
- goto out;
- count = min_t(size_t, count, 10);
- memcpy(tmp, buf, count);
- ret = simple_strtol(tmp, NULL, 10);
-out:
- return ret;
-}
-
-static int get_boolean(const char *buf, size_t count)
-{
- if (count != 0) {
- if (buf[0] == '1')
- return 1;
- if (buf[0] == '0')
- return 0;
- if (count >= 4 && memcmp(buf, "true", 4) == 0)
- return 1;
- if (count >= 5 && memcmp(buf, "false", 5) == 0)
- return 0;
- if (count >= 3 && memcmp(buf, "yes", 3) == 0)
- return 1;
- if (count >= 2 && memcmp(buf, "no", 2) == 0)
- return 0;
- if (count >= 2 && memcmp(buf, "on", 2) == 0)
- return 1;
- if (count >= 3 && memcmp(buf, "off", 3) == 0)
- return 0;
- }
- return -EINVAL;
-}
-
-static ssize_t b43legacy_attr_interfmode_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct b43legacy_wldev *wldev = dev_to_b43legacy_wldev(dev);
- ssize_t count = 0;
-
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
-
- mutex_lock(&wldev->wl->mutex);
-
- switch (wldev->phy.interfmode) {
- case B43legacy_INTERFMODE_NONE:
- count = snprintf(buf, PAGE_SIZE, "0 (No Interference"
- " Mitigation)\n");
- break;
- case B43legacy_INTERFMODE_NONWLAN:
- count = snprintf(buf, PAGE_SIZE, "1 (Non-WLAN Interference"
- " Mitigation)\n");
- break;
- case B43legacy_INTERFMODE_MANUALWLAN:
- count = snprintf(buf, PAGE_SIZE, "2 (WLAN Interference"
- " Mitigation)\n");
- break;
- default:
- B43legacy_WARN_ON(1);
- }
-
- mutex_unlock(&wldev->wl->mutex);
-
- return count;
-}
-
-static ssize_t b43legacy_attr_interfmode_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct b43legacy_wldev *wldev = dev_to_b43legacy_wldev(dev);
- unsigned long flags;
- int err;
- int mode;
-
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
-
- mode = get_integer(buf, count);
- switch (mode) {
- case 0:
- mode = B43legacy_INTERFMODE_NONE;
- break;
- case 1:
- mode = B43legacy_INTERFMODE_NONWLAN;
- break;
- case 2:
- mode = B43legacy_INTERFMODE_MANUALWLAN;
- break;
- case 3:
- mode = B43legacy_INTERFMODE_AUTOWLAN;
- break;
- default:
- return -EINVAL;
- }
-
- mutex_lock(&wldev->wl->mutex);
- spin_lock_irqsave(&wldev->wl->irq_lock, flags);
-
- err = b43legacy_radio_set_interference_mitigation(wldev, mode);
- if (err)
- b43legacyerr(wldev->wl, "Interference Mitigation not "
- "supported by device\n");
- mmiowb();
- spin_unlock_irqrestore(&wldev->wl->irq_lock, flags);
- mutex_unlock(&wldev->wl->mutex);
-
- return err ? err : count;
-}
-
-static DEVICE_ATTR(interference, 0644,
- b43legacy_attr_interfmode_show,
- b43legacy_attr_interfmode_store);
-
-static ssize_t b43legacy_attr_preamble_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct b43legacy_wldev *wldev = dev_to_b43legacy_wldev(dev);
- ssize_t count;
-
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
-
- mutex_lock(&wldev->wl->mutex);
-
- if (wldev->short_preamble)
- count = snprintf(buf, PAGE_SIZE, "1 (Short Preamble"
- " enabled)\n");
- else
- count = snprintf(buf, PAGE_SIZE, "0 (Short Preamble"
- " disabled)\n");
-
- mutex_unlock(&wldev->wl->mutex);
-
- return count;
-}
-
-static ssize_t b43legacy_attr_preamble_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct b43legacy_wldev *wldev = dev_to_b43legacy_wldev(dev);
- unsigned long flags;
- int value;
-
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
-
- value = get_boolean(buf, count);
- if (value < 0)
- return value;
- mutex_lock(&wldev->wl->mutex);
- spin_lock_irqsave(&wldev->wl->irq_lock, flags);
-
- wldev->short_preamble = !!value;
-
- spin_unlock_irqrestore(&wldev->wl->irq_lock, flags);
- mutex_unlock(&wldev->wl->mutex);
-
- return count;
-}
-
-static DEVICE_ATTR(shortpreamble, 0644,
- b43legacy_attr_preamble_show,
- b43legacy_attr_preamble_store);
-
-int b43legacy_sysfs_register(struct b43legacy_wldev *wldev)
-{
- struct device *dev = wldev->dev->dev;
- int err;
-
- B43legacy_WARN_ON(b43legacy_status(wldev) !=
- B43legacy_STAT_INITIALIZED);
-
- err = device_create_file(dev, &dev_attr_interference);
- if (err)
- goto out;
- err = device_create_file(dev, &dev_attr_shortpreamble);
- if (err)
- goto err_remove_interfmode;
-
-out:
- return err;
-err_remove_interfmode:
- device_remove_file(dev, &dev_attr_interference);
- goto out;
-}
-
-void b43legacy_sysfs_unregister(struct b43legacy_wldev *wldev)
-{
- struct device *dev = wldev->dev->dev;
-
- device_remove_file(dev, &dev_attr_shortpreamble);
- device_remove_file(dev, &dev_attr_interference);
-}
+++ /dev/null
-#ifndef B43legacy_SYSFS_H_
-#define B43legacy_SYSFS_H_
-
-struct b43legacy_wldev;
-
-int b43legacy_sysfs_register(struct b43legacy_wldev *dev);
-void b43legacy_sysfs_unregister(struct b43legacy_wldev *dev);
-
-#endif /* B43legacy_SYSFS_H_ */
+++ /dev/null
-/*
-
- Broadcom B43legacy wireless driver
-
- Transmission (TX/RX) related functions.
-
- Copyright (C) 2005 Martin Langer <martin-langer@gmx.de>
- Copyright (C) 2005 Stefano Brivio <stefano.brivio@polimi.it>
- Copyright (C) 2005, 2006 Michael Buesch <m@bues.ch>
- Copyright (C) 2005 Danny van Dyk <kugelfang@gentoo.org>
- Copyright (C) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
- Copyright (C) 2007 Larry Finger <Larry.Finger@lwfinger.net>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
- Boston, MA 02110-1301, USA.
-
-*/
-
-#include <net/dst.h>
-
-#include "xmit.h"
-#include "phy.h"
-#include "dma.h"
-#include "pio.h"
-
-
-/* Extract the bitrate out of a CCK PLCP header. */
-static u8 b43legacy_plcp_get_bitrate_idx_cck(struct b43legacy_plcp_hdr6 *plcp)
-{
- switch (plcp->raw[0]) {
- case 0x0A:
- return 0;
- case 0x14:
- return 1;
- case 0x37:
- return 2;
- case 0x6E:
- return 3;
- }
- B43legacy_BUG_ON(1);
- return -1;
-}
-
-/* Extract the bitrate out of an OFDM PLCP header. */
-static u8 b43legacy_plcp_get_bitrate_idx_ofdm(struct b43legacy_plcp_hdr6 *plcp,
- bool aphy)
-{
- int base = aphy ? 0 : 4;
-
- switch (plcp->raw[0] & 0xF) {
- case 0xB:
- return base + 0;
- case 0xF:
- return base + 1;
- case 0xA:
- return base + 2;
- case 0xE:
- return base + 3;
- case 0x9:
- return base + 4;
- case 0xD:
- return base + 5;
- case 0x8:
- return base + 6;
- case 0xC:
- return base + 7;
- }
- B43legacy_BUG_ON(1);
- return -1;
-}
-
-u8 b43legacy_plcp_get_ratecode_cck(const u8 bitrate)
-{
- switch (bitrate) {
- case B43legacy_CCK_RATE_1MB:
- return 0x0A;
- case B43legacy_CCK_RATE_2MB:
- return 0x14;
- case B43legacy_CCK_RATE_5MB:
- return 0x37;
- case B43legacy_CCK_RATE_11MB:
- return 0x6E;
- }
- B43legacy_BUG_ON(1);
- return 0;
-}
-
-u8 b43legacy_plcp_get_ratecode_ofdm(const u8 bitrate)
-{
- switch (bitrate) {
- case B43legacy_OFDM_RATE_6MB:
- return 0xB;
- case B43legacy_OFDM_RATE_9MB:
- return 0xF;
- case B43legacy_OFDM_RATE_12MB:
- return 0xA;
- case B43legacy_OFDM_RATE_18MB:
- return 0xE;
- case B43legacy_OFDM_RATE_24MB:
- return 0x9;
- case B43legacy_OFDM_RATE_36MB:
- return 0xD;
- case B43legacy_OFDM_RATE_48MB:
- return 0x8;
- case B43legacy_OFDM_RATE_54MB:
- return 0xC;
- }
- B43legacy_BUG_ON(1);
- return 0;
-}
-
-void b43legacy_generate_plcp_hdr(struct b43legacy_plcp_hdr4 *plcp,
- const u16 octets, const u8 bitrate)
-{
- __le32 *data = &(plcp->data);
- __u8 *raw = plcp->raw;
-
- if (b43legacy_is_ofdm_rate(bitrate)) {
- u16 d;
-
- d = b43legacy_plcp_get_ratecode_ofdm(bitrate);
- B43legacy_WARN_ON(octets & 0xF000);
- d |= (octets << 5);
- *data = cpu_to_le32(d);
- } else {
- u32 plen;
-
- plen = octets * 16 / bitrate;
- if ((octets * 16 % bitrate) > 0) {
- plen++;
- if ((bitrate == B43legacy_CCK_RATE_11MB)
- && ((octets * 8 % 11) < 4))
- raw[1] = 0x84;
- else
- raw[1] = 0x04;
- } else
- raw[1] = 0x04;
- *data |= cpu_to_le32(plen << 16);
- raw[0] = b43legacy_plcp_get_ratecode_cck(bitrate);
- }
-}
-
-static u8 b43legacy_calc_fallback_rate(u8 bitrate)
-{
- switch (bitrate) {
- case B43legacy_CCK_RATE_1MB:
- return B43legacy_CCK_RATE_1MB;
- case B43legacy_CCK_RATE_2MB:
- return B43legacy_CCK_RATE_1MB;
- case B43legacy_CCK_RATE_5MB:
- return B43legacy_CCK_RATE_2MB;
- case B43legacy_CCK_RATE_11MB:
- return B43legacy_CCK_RATE_5MB;
- case B43legacy_OFDM_RATE_6MB:
- return B43legacy_CCK_RATE_5MB;
- case B43legacy_OFDM_RATE_9MB:
- return B43legacy_OFDM_RATE_6MB;
- case B43legacy_OFDM_RATE_12MB:
- return B43legacy_OFDM_RATE_9MB;
- case B43legacy_OFDM_RATE_18MB:
- return B43legacy_OFDM_RATE_12MB;
- case B43legacy_OFDM_RATE_24MB:
- return B43legacy_OFDM_RATE_18MB;
- case B43legacy_OFDM_RATE_36MB:
- return B43legacy_OFDM_RATE_24MB;
- case B43legacy_OFDM_RATE_48MB:
- return B43legacy_OFDM_RATE_36MB;
- case B43legacy_OFDM_RATE_54MB:
- return B43legacy_OFDM_RATE_48MB;
- }
- B43legacy_BUG_ON(1);
- return 0;
-}
-
-static int generate_txhdr_fw3(struct b43legacy_wldev *dev,
- struct b43legacy_txhdr_fw3 *txhdr,
- const unsigned char *fragment_data,
- unsigned int fragment_len,
- struct ieee80211_tx_info *info,
- u16 cookie)
-{
- const struct ieee80211_hdr *wlhdr;
- int use_encryption = !!info->control.hw_key;
- u8 rate;
- struct ieee80211_rate *rate_fb;
- int rate_ofdm;
- int rate_fb_ofdm;
- unsigned int plcp_fragment_len;
- u32 mac_ctl = 0;
- u16 phy_ctl = 0;
- struct ieee80211_rate *tx_rate;
- struct ieee80211_tx_rate *rates;
-
- wlhdr = (const struct ieee80211_hdr *)fragment_data;
-
- memset(txhdr, 0, sizeof(*txhdr));
-
- tx_rate = ieee80211_get_tx_rate(dev->wl->hw, info);
-
- rate = tx_rate->hw_value;
- rate_ofdm = b43legacy_is_ofdm_rate(rate);
- rate_fb = ieee80211_get_alt_retry_rate(dev->wl->hw, info, 0) ? : tx_rate;
- rate_fb_ofdm = b43legacy_is_ofdm_rate(rate_fb->hw_value);
-
- txhdr->mac_frame_ctl = wlhdr->frame_control;
- memcpy(txhdr->tx_receiver, wlhdr->addr1, ETH_ALEN);
-
- /* Calculate duration for fallback rate */
- if ((rate_fb->hw_value == rate) ||
- (wlhdr->duration_id & cpu_to_le16(0x8000)) ||
- (wlhdr->duration_id == cpu_to_le16(0))) {
- /* If the fallback rate equals the normal rate or the
- * dur_id field contains an AID, CFP magic or 0,
- * use the original dur_id field. */
- txhdr->dur_fb = wlhdr->duration_id;
- } else {
- txhdr->dur_fb = ieee80211_generic_frame_duration(dev->wl->hw,
- info->control.vif,
- info->band,
- fragment_len,
- rate_fb);
- }
-
- plcp_fragment_len = fragment_len + FCS_LEN;
- if (use_encryption) {
- u8 key_idx = info->control.hw_key->hw_key_idx;
- struct b43legacy_key *key;
- int wlhdr_len;
- size_t iv_len;
-
- B43legacy_WARN_ON(key_idx >= dev->max_nr_keys);
- key = &(dev->key[key_idx]);
-
- if (key->enabled) {
- /* Hardware appends ICV. */
- plcp_fragment_len += info->control.hw_key->icv_len;
-
- key_idx = b43legacy_kidx_to_fw(dev, key_idx);
- mac_ctl |= (key_idx << B43legacy_TX4_MAC_KEYIDX_SHIFT) &
- B43legacy_TX4_MAC_KEYIDX;
- mac_ctl |= (key->algorithm <<
- B43legacy_TX4_MAC_KEYALG_SHIFT) &
- B43legacy_TX4_MAC_KEYALG;
- wlhdr_len = ieee80211_hdrlen(wlhdr->frame_control);
- iv_len = min_t(size_t, info->control.hw_key->iv_len,
- ARRAY_SIZE(txhdr->iv));
- memcpy(txhdr->iv, ((u8 *)wlhdr) + wlhdr_len, iv_len);
- } else {
- /* This key is invalid. This might only happen
- * in a short timeframe after machine resume before
- * we were able to reconfigure keys.
- * Drop this packet completely. Do not transmit it
- * unencrypted to avoid leaking information. */
- return -ENOKEY;
- }
- }
- b43legacy_generate_plcp_hdr((struct b43legacy_plcp_hdr4 *)
- (&txhdr->plcp), plcp_fragment_len,
- rate);
- b43legacy_generate_plcp_hdr(&txhdr->plcp_fb, plcp_fragment_len,
- rate_fb->hw_value);
-
- /* PHY TX Control word */
- if (rate_ofdm)
- phy_ctl |= B43legacy_TX4_PHY_ENC_OFDM;
- if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
- phy_ctl |= B43legacy_TX4_PHY_SHORTPRMBL;
- phy_ctl |= B43legacy_TX4_PHY_ANTLAST;
-
- /* MAC control */
- rates = info->control.rates;
- if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
- mac_ctl |= B43legacy_TX4_MAC_ACK;
- if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ)
- mac_ctl |= B43legacy_TX4_MAC_HWSEQ;
- if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
- mac_ctl |= B43legacy_TX4_MAC_STMSDU;
- if (rate_fb_ofdm)
- mac_ctl |= B43legacy_TX4_MAC_FALLBACKOFDM;
-
- /* Overwrite rates[0].count to make the retry calculation
- * in the tx status easier. need the actual retry limit to
- * detect whether the fallback rate was used.
- */
- if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) ||
- (rates[0].count <= dev->wl->hw->conf.long_frame_max_tx_count)) {
- rates[0].count = dev->wl->hw->conf.long_frame_max_tx_count;
- mac_ctl |= B43legacy_TX4_MAC_LONGFRAME;
- } else {
- rates[0].count = dev->wl->hw->conf.short_frame_max_tx_count;
- }
-
- /* Generate the RTS or CTS-to-self frame */
- if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) ||
- (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)) {
- unsigned int len;
- struct ieee80211_hdr *hdr;
- int rts_rate;
- int rts_rate_fb;
- int rts_rate_fb_ofdm;
-
- rts_rate = ieee80211_get_rts_cts_rate(dev->wl->hw, info)->hw_value;
- rts_rate_fb = b43legacy_calc_fallback_rate(rts_rate);
- rts_rate_fb_ofdm = b43legacy_is_ofdm_rate(rts_rate_fb);
- if (rts_rate_fb_ofdm)
- mac_ctl |= B43legacy_TX4_MAC_CTSFALLBACKOFDM;
-
- if (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
- ieee80211_ctstoself_get(dev->wl->hw,
- info->control.vif,
- fragment_data,
- fragment_len, info,
- (struct ieee80211_cts *)
- (txhdr->rts_frame));
- mac_ctl |= B43legacy_TX4_MAC_SENDCTS;
- len = sizeof(struct ieee80211_cts);
- } else {
- ieee80211_rts_get(dev->wl->hw,
- info->control.vif,
- fragment_data, fragment_len, info,
- (struct ieee80211_rts *)
- (txhdr->rts_frame));
- mac_ctl |= B43legacy_TX4_MAC_SENDRTS;
- len = sizeof(struct ieee80211_rts);
- }
- len += FCS_LEN;
- b43legacy_generate_plcp_hdr((struct b43legacy_plcp_hdr4 *)
- (&txhdr->rts_plcp),
- len, rts_rate);
- b43legacy_generate_plcp_hdr(&txhdr->rts_plcp_fb,
- len, rts_rate_fb);
- hdr = (struct ieee80211_hdr *)(&txhdr->rts_frame);
- txhdr->rts_dur_fb = hdr->duration_id;
- }
-
- /* Magic cookie */
- txhdr->cookie = cpu_to_le16(cookie);
-
- /* Apply the bitfields */
- txhdr->mac_ctl = cpu_to_le32(mac_ctl);
- txhdr->phy_ctl = cpu_to_le16(phy_ctl);
-
- return 0;
-}
-
-int b43legacy_generate_txhdr(struct b43legacy_wldev *dev,
- u8 *txhdr,
- const unsigned char *fragment_data,
- unsigned int fragment_len,
- struct ieee80211_tx_info *info,
- u16 cookie)
-{
- return generate_txhdr_fw3(dev, (struct b43legacy_txhdr_fw3 *)txhdr,
- fragment_data, fragment_len,
- info, cookie);
-}
-
-static s8 b43legacy_rssi_postprocess(struct b43legacy_wldev *dev,
- u8 in_rssi, int ofdm,
- int adjust_2053, int adjust_2050)
-{
- struct b43legacy_phy *phy = &dev->phy;
- s32 tmp;
-
- switch (phy->radio_ver) {
- case 0x2050:
- if (ofdm) {
- tmp = in_rssi;
- if (tmp > 127)
- tmp -= 256;
- tmp *= 73;
- tmp /= 64;
- if (adjust_2050)
- tmp += 25;
- else
- tmp -= 3;
- } else {
- if (dev->dev->bus->sprom.boardflags_lo
- & B43legacy_BFL_RSSI) {
- if (in_rssi > 63)
- in_rssi = 63;
- tmp = phy->nrssi_lt[in_rssi];
- tmp = 31 - tmp;
- tmp *= -131;
- tmp /= 128;
- tmp -= 57;
- } else {
- tmp = in_rssi;
- tmp = 31 - tmp;
- tmp *= -149;
- tmp /= 128;
- tmp -= 68;
- }
- if (phy->type == B43legacy_PHYTYPE_G &&
- adjust_2050)
- tmp += 25;
- }
- break;
- case 0x2060:
- if (in_rssi > 127)
- tmp = in_rssi - 256;
- else
- tmp = in_rssi;
- break;
- default:
- tmp = in_rssi;
- tmp -= 11;
- tmp *= 103;
- tmp /= 64;
- if (adjust_2053)
- tmp -= 109;
- else
- tmp -= 83;
- }
-
- return (s8)tmp;
-}
-
-void b43legacy_rx(struct b43legacy_wldev *dev,
- struct sk_buff *skb,
- const void *_rxhdr)
-{
- struct ieee80211_rx_status status;
- struct b43legacy_plcp_hdr6 *plcp;
- struct ieee80211_hdr *wlhdr;
- const struct b43legacy_rxhdr_fw3 *rxhdr = _rxhdr;
- __le16 fctl;
- u16 phystat0;
- u16 phystat3;
- u16 chanstat;
- u16 mactime;
- u32 macstat;
- u16 chanid;
- u8 jssi;
- int padding;
-
- memset(&status, 0, sizeof(status));
-
- /* Get metadata about the frame from the header. */
- phystat0 = le16_to_cpu(rxhdr->phy_status0);
- phystat3 = le16_to_cpu(rxhdr->phy_status3);
- jssi = rxhdr->jssi;
- macstat = le16_to_cpu(rxhdr->mac_status);
- mactime = le16_to_cpu(rxhdr->mac_time);
- chanstat = le16_to_cpu(rxhdr->channel);
-
- if (macstat & B43legacy_RX_MAC_FCSERR)
- dev->wl->ieee_stats.dot11FCSErrorCount++;
-
- /* Skip PLCP and padding */
- padding = (macstat & B43legacy_RX_MAC_PADDING) ? 2 : 0;
- if (unlikely(skb->len < (sizeof(struct b43legacy_plcp_hdr6) +
- padding))) {
- b43legacydbg(dev->wl, "RX: Packet size underrun (1)\n");
- goto drop;
- }
- plcp = (struct b43legacy_plcp_hdr6 *)(skb->data + padding);
- skb_pull(skb, sizeof(struct b43legacy_plcp_hdr6) + padding);
- /* The skb contains the Wireless Header + payload data now */
- if (unlikely(skb->len < (2+2+6/*minimum hdr*/ + FCS_LEN))) {
- b43legacydbg(dev->wl, "RX: Packet size underrun (2)\n");
- goto drop;
- }
- wlhdr = (struct ieee80211_hdr *)(skb->data);
- fctl = wlhdr->frame_control;
-
- if ((macstat & B43legacy_RX_MAC_DEC) &&
- !(macstat & B43legacy_RX_MAC_DECERR)) {
- unsigned int keyidx;
- int wlhdr_len;
- int iv_len;
- int icv_len;
-
- keyidx = ((macstat & B43legacy_RX_MAC_KEYIDX)
- >> B43legacy_RX_MAC_KEYIDX_SHIFT);
- /* We must adjust the key index here. We want the "physical"
- * key index, but the ucode passed it slightly different.
- */
- keyidx = b43legacy_kidx_to_raw(dev, keyidx);
- B43legacy_WARN_ON(keyidx >= dev->max_nr_keys);
-
- if (dev->key[keyidx].algorithm != B43legacy_SEC_ALGO_NONE) {
- /* Remove PROTECTED flag to mark it as decrypted. */
- B43legacy_WARN_ON(!ieee80211_has_protected(fctl));
- fctl &= ~cpu_to_le16(IEEE80211_FCTL_PROTECTED);
- wlhdr->frame_control = fctl;
-
- wlhdr_len = ieee80211_hdrlen(fctl);
- if (unlikely(skb->len < (wlhdr_len + 3))) {
- b43legacydbg(dev->wl, "RX: Packet size"
- " underrun3\n");
- goto drop;
- }
- if (skb->data[wlhdr_len + 3] & (1 << 5)) {
- /* The Ext-IV Bit is set in the "KeyID"
- * octet of the IV.
- */
- iv_len = 8;
- icv_len = 8;
- } else {
- iv_len = 4;
- icv_len = 4;
- }
- if (unlikely(skb->len < (wlhdr_len + iv_len +
- icv_len))) {
- b43legacydbg(dev->wl, "RX: Packet size"
- " underrun4\n");
- goto drop;
- }
- /* Remove the IV */
- memmove(skb->data + iv_len, skb->data, wlhdr_len);
- skb_pull(skb, iv_len);
- /* Remove the ICV */
- skb_trim(skb, skb->len - icv_len);
-
- status.flag |= RX_FLAG_DECRYPTED;
- }
- }
-
- status.signal = b43legacy_rssi_postprocess(dev, jssi,
- (phystat0 & B43legacy_RX_PHYST0_OFDM),
- (phystat0 & B43legacy_RX_PHYST0_GAINCTL),
- (phystat3 & B43legacy_RX_PHYST3_TRSTATE));
- /* change to support A PHY */
- if (phystat0 & B43legacy_RX_PHYST0_OFDM)
- status.rate_idx = b43legacy_plcp_get_bitrate_idx_ofdm(plcp, false);
- else
- status.rate_idx = b43legacy_plcp_get_bitrate_idx_cck(plcp);
- status.antenna = !!(phystat0 & B43legacy_RX_PHYST0_ANT);
-
- /*
- * All frames on monitor interfaces and beacons always need a full
- * 64-bit timestamp. Monitor interfaces need it for diagnostic
- * purposes and beacons for IBSS merging.
- * This code assumes we get to process the packet within 16 bits
- * of timestamp, i.e. about 65 milliseconds after the PHY received
- * the first symbol.
- */
- if (ieee80211_is_beacon(fctl) || dev->wl->radiotap_enabled) {
- u16 low_mactime_now;
-
- b43legacy_tsf_read(dev, &status.mactime);
- low_mactime_now = status.mactime;
- status.mactime = status.mactime & ~0xFFFFULL;
- status.mactime += mactime;
- if (low_mactime_now <= mactime)
- status.mactime -= 0x10000;
- status.flag |= RX_FLAG_MACTIME_START;
- }
-
- chanid = (chanstat & B43legacy_RX_CHAN_ID) >>
- B43legacy_RX_CHAN_ID_SHIFT;
- switch (chanstat & B43legacy_RX_CHAN_PHYTYPE) {
- case B43legacy_PHYTYPE_B:
- case B43legacy_PHYTYPE_G:
- status.band = IEEE80211_BAND_2GHZ;
- status.freq = chanid + 2400;
- break;
- default:
- b43legacywarn(dev->wl, "Unexpected value for chanstat (0x%X)\n",
- chanstat);
- }
-
- memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status));
- ieee80211_rx_irqsafe(dev->wl->hw, skb);
-
- return;
-drop:
- b43legacydbg(dev->wl, "RX: Packet dropped\n");
- dev_kfree_skb_any(skb);
-}
-
-void b43legacy_handle_txstatus(struct b43legacy_wldev *dev,
- const struct b43legacy_txstatus *status)
-{
- b43legacy_debugfs_log_txstat(dev, status);
-
- if (status->intermediate)
- return;
- if (status->for_ampdu)
- return;
- if (!status->acked)
- dev->wl->ieee_stats.dot11ACKFailureCount++;
- if (status->rts_count) {
- if (status->rts_count == 0xF) /* FIXME */
- dev->wl->ieee_stats.dot11RTSFailureCount++;
- else
- dev->wl->ieee_stats.dot11RTSSuccessCount++;
- }
-
- if (b43legacy_using_pio(dev))
- b43legacy_pio_handle_txstatus(dev, status);
- else
- b43legacy_dma_handle_txstatus(dev, status);
-}
-
-/* Handle TX status report as received through DMA/PIO queues */
-void b43legacy_handle_hwtxstatus(struct b43legacy_wldev *dev,
- const struct b43legacy_hwtxstatus *hw)
-{
- struct b43legacy_txstatus status;
- u8 tmp;
-
- status.cookie = le16_to_cpu(hw->cookie);
- status.seq = le16_to_cpu(hw->seq);
- status.phy_stat = hw->phy_stat;
- tmp = hw->count;
- status.frame_count = (tmp >> 4);
- status.rts_count = (tmp & 0x0F);
- tmp = hw->flags << 1;
- status.supp_reason = ((tmp & 0x1C) >> 2);
- status.pm_indicated = !!(tmp & 0x80);
- status.intermediate = !!(tmp & 0x40);
- status.for_ampdu = !!(tmp & 0x20);
- status.acked = !!(tmp & 0x02);
-
- b43legacy_handle_txstatus(dev, &status);
-}
-
-/* Stop any TX operation on the device (suspend the hardware queues) */
-void b43legacy_tx_suspend(struct b43legacy_wldev *dev)
-{
- if (b43legacy_using_pio(dev))
- b43legacy_pio_freeze_txqueues(dev);
- else
- b43legacy_dma_tx_suspend(dev);
-}
-
-/* Resume any TX operation on the device (resume the hardware queues) */
-void b43legacy_tx_resume(struct b43legacy_wldev *dev)
-{
- if (b43legacy_using_pio(dev))
- b43legacy_pio_thaw_txqueues(dev);
- else
- b43legacy_dma_tx_resume(dev);
-}
-
-/* Initialize the QoS parameters */
-void b43legacy_qos_init(struct b43legacy_wldev *dev)
-{
- /* FIXME: This function must probably be called from the mac80211
- * config callback. */
-return;
-
- b43legacy_hf_write(dev, b43legacy_hf_read(dev) | B43legacy_HF_EDCF);
- /* FIXME kill magic */
- b43legacy_write16(dev, 0x688,
- b43legacy_read16(dev, 0x688) | 0x4);
-
-
- /*TODO: We might need some stack support here to get the values. */
-}
+++ /dev/null
-#ifndef B43legacy_XMIT_H_
-#define B43legacy_XMIT_H_
-
-#include "main.h"
-
-
-#define _b43legacy_declare_plcp_hdr(size) \
- struct b43legacy_plcp_hdr##size { \
- union { \
- __le32 data; \
- __u8 raw[size]; \
- } __packed; \
- } __packed
-
-/* struct b43legacy_plcp_hdr4 */
-_b43legacy_declare_plcp_hdr(4);
-/* struct b43legacy_plcp_hdr6 */
-_b43legacy_declare_plcp_hdr(6);
-
-#undef _b43legacy_declare_plcp_hdr
-
-
-/* TX header for v3 firmware */
-struct b43legacy_txhdr_fw3 {
- __le32 mac_ctl; /* MAC TX control */
- __le16 mac_frame_ctl; /* Copy of the FrameControl */
- __le16 tx_fes_time_norm; /* TX FES Time Normal */
- __le16 phy_ctl; /* PHY TX control */
- __u8 iv[16]; /* Encryption IV */
- __u8 tx_receiver[6]; /* TX Frame Receiver address */
- __le16 tx_fes_time_fb; /* TX FES Time Fallback */
- struct b43legacy_plcp_hdr4 rts_plcp_fb; /* RTS fallback PLCP */
- __le16 rts_dur_fb; /* RTS fallback duration */
- struct b43legacy_plcp_hdr4 plcp_fb; /* Fallback PLCP */
- __le16 dur_fb; /* Fallback duration */
- PAD_BYTES(2);
- __le16 cookie;
- __le16 unknown_scb_stuff;
- struct b43legacy_plcp_hdr6 rts_plcp; /* RTS PLCP */
- __u8 rts_frame[18]; /* The RTS frame (if used) */
- struct b43legacy_plcp_hdr6 plcp;
-} __packed;
-
-/* MAC TX control */
-#define B43legacy_TX4_MAC_KEYIDX 0x0FF00000 /* Security key index */
-#define B43legacy_TX4_MAC_KEYIDX_SHIFT 20
-#define B43legacy_TX4_MAC_KEYALG 0x00070000 /* Security key algorithm */
-#define B43legacy_TX4_MAC_KEYALG_SHIFT 16
-#define B43legacy_TX4_MAC_LIFETIME 0x00001000
-#define B43legacy_TX4_MAC_FRAMEBURST 0x00000800
-#define B43legacy_TX4_MAC_SENDCTS 0x00000400
-#define B43legacy_TX4_MAC_AMPDU 0x00000300
-#define B43legacy_TX4_MAC_AMPDU_SHIFT 8
-#define B43legacy_TX4_MAC_CTSFALLBACKOFDM 0x00000200
-#define B43legacy_TX4_MAC_FALLBACKOFDM 0x00000100
-#define B43legacy_TX4_MAC_5GHZ 0x00000080
-#define B43legacy_TX4_MAC_IGNPMQ 0x00000020
-#define B43legacy_TX4_MAC_HWSEQ 0x00000010 /* Use Hardware Seq No */
-#define B43legacy_TX4_MAC_STMSDU 0x00000008 /* Start MSDU */
-#define B43legacy_TX4_MAC_SENDRTS 0x00000004
-#define B43legacy_TX4_MAC_LONGFRAME 0x00000002
-#define B43legacy_TX4_MAC_ACK 0x00000001
-
-/* Extra Frame Types */
-#define B43legacy_TX4_EFT_FBOFDM 0x0001 /* Data frame fb rate type */
-#define B43legacy_TX4_EFT_RTSOFDM 0x0004 /* RTS/CTS rate type */
-#define B43legacy_TX4_EFT_RTSFBOFDM 0x0010 /* RTS/CTS fallback rate type */
-
-/* PHY TX control word */
-#define B43legacy_TX4_PHY_ENC 0x0003 /* Data frame encoding */
-#define B43legacy_TX4_PHY_ENC_CCK 0x0000 /* CCK */
-#define B43legacy_TX4_PHY_ENC_OFDM 0x0001 /* Data frame rate type */
-#define B43legacy_TX4_PHY_SHORTPRMBL 0x0010 /* Use short preamble */
-#define B43legacy_TX4_PHY_ANT 0x03C0 /* Antenna selection */
-#define B43legacy_TX4_PHY_ANT0 0x0000 /* Use antenna 0 */
-#define B43legacy_TX4_PHY_ANT1 0x0100 /* Use antenna 1 */
-#define B43legacy_TX4_PHY_ANTLAST 0x0300 /* Use last used antenna */
-
-
-
-int b43legacy_generate_txhdr(struct b43legacy_wldev *dev,
- u8 *txhdr,
- const unsigned char *fragment_data,
- unsigned int fragment_len,
- struct ieee80211_tx_info *info,
- u16 cookie);
-
-
-/* Transmit Status */
-struct b43legacy_txstatus {
- u16 cookie; /* The cookie from the txhdr */
- u16 seq; /* Sequence number */
- u8 phy_stat; /* PHY TX status */
- u8 frame_count; /* Frame transmit count */
- u8 rts_count; /* RTS transmit count */
- u8 supp_reason; /* Suppression reason */
- /* flags */
- u8 pm_indicated;/* PM mode indicated to AP */
- u8 intermediate;/* Intermediate status notification */
- u8 for_ampdu; /* Status is for an AMPDU (afterburner) */
- u8 acked; /* Wireless ACK received */
-};
-
-/* txstatus supp_reason values */
-enum {
- B43legacy_TXST_SUPP_NONE, /* Not suppressed */
- B43legacy_TXST_SUPP_PMQ, /* Suppressed due to PMQ entry */
- B43legacy_TXST_SUPP_FLUSH, /* Suppressed due to flush request */
- B43legacy_TXST_SUPP_PREV, /* Previous fragment failed */
- B43legacy_TXST_SUPP_CHAN, /* Channel mismatch */
- B43legacy_TXST_SUPP_LIFE, /* Lifetime expired */
- B43legacy_TXST_SUPP_UNDER, /* Buffer underflow */
- B43legacy_TXST_SUPP_ABNACK, /* Afterburner NACK */
-};
-
-/* Transmit Status as received through DMA/PIO on old chips */
-struct b43legacy_hwtxstatus {
- PAD_BYTES(4);
- __le16 cookie;
- u8 flags;
- u8 count;
- PAD_BYTES(2);
- __le16 seq;
- u8 phy_stat;
- PAD_BYTES(1);
-} __packed;
-
-
-/* Receive header for v3 firmware. */
-struct b43legacy_rxhdr_fw3 {
- __le16 frame_len; /* Frame length */
- PAD_BYTES(2);
- __le16 phy_status0; /* PHY RX Status 0 */
- __u8 jssi; /* PHY RX Status 1: JSSI */
- __u8 sig_qual; /* PHY RX Status 1: Signal Quality */
- PAD_BYTES(2); /* PHY RX Status 2 */
- __le16 phy_status3; /* PHY RX Status 3 */
- __le16 mac_status; /* MAC RX status */
- __le16 mac_time;
- __le16 channel;
-} __packed;
-
-
-/* PHY RX Status 0 */
-#define B43legacy_RX_PHYST0_GAINCTL 0x4000 /* Gain Control */
-#define B43legacy_RX_PHYST0_PLCPHCF 0x0200
-#define B43legacy_RX_PHYST0_PLCPFV 0x0100
-#define B43legacy_RX_PHYST0_SHORTPRMBL 0x0080 /* Recvd with Short Preamble */
-#define B43legacy_RX_PHYST0_LCRS 0x0040
-#define B43legacy_RX_PHYST0_ANT 0x0020 /* Antenna */
-#define B43legacy_RX_PHYST0_UNSRATE 0x0010
-#define B43legacy_RX_PHYST0_CLIP 0x000C
-#define B43legacy_RX_PHYST0_CLIP_SHIFT 2
-#define B43legacy_RX_PHYST0_FTYPE 0x0003 /* Frame type */
-#define B43legacy_RX_PHYST0_CCK 0x0000 /* Frame type: CCK */
-#define B43legacy_RX_PHYST0_OFDM 0x0001 /* Frame type: OFDM */
-#define B43legacy_RX_PHYST0_PRE_N 0x0002 /* Pre-standard N-PHY frame */
-#define B43legacy_RX_PHYST0_STD_N 0x0003 /* Standard N-PHY frame */
-
-/* PHY RX Status 2 */
-#define B43legacy_RX_PHYST2_LNAG 0xC000 /* LNA Gain */
-#define B43legacy_RX_PHYST2_LNAG_SHIFT 14
-#define B43legacy_RX_PHYST2_PNAG 0x3C00 /* PNA Gain */
-#define B43legacy_RX_PHYST2_PNAG_SHIFT 10
-#define B43legacy_RX_PHYST2_FOFF 0x03FF /* F offset */
-
-/* PHY RX Status 3 */
-#define B43legacy_RX_PHYST3_DIGG 0x1800 /* DIG Gain */
-#define B43legacy_RX_PHYST3_DIGG_SHIFT 11
-#define B43legacy_RX_PHYST3_TRSTATE 0x0400 /* TR state */
-
-/* MAC RX Status */
-#define B43legacy_RX_MAC_BEACONSENT 0x00008000 /* Beacon send flag */
-#define B43legacy_RX_MAC_KEYIDX 0x000007E0 /* Key index */
-#define B43legacy_RX_MAC_KEYIDX_SHIFT 5
-#define B43legacy_RX_MAC_DECERR 0x00000010 /* Decrypt error */
-#define B43legacy_RX_MAC_DEC 0x00000008 /* Decryption attempted */
-#define B43legacy_RX_MAC_PADDING 0x00000004 /* Pad bytes present */
-#define B43legacy_RX_MAC_RESP 0x00000002 /* Response frame xmitted */
-#define B43legacy_RX_MAC_FCSERR 0x00000001 /* FCS error */
-
-/* RX channel */
-#define B43legacy_RX_CHAN_GAIN 0xFC00 /* Gain */
-#define B43legacy_RX_CHAN_GAIN_SHIFT 10
-#define B43legacy_RX_CHAN_ID 0x03FC /* Channel ID */
-#define B43legacy_RX_CHAN_ID_SHIFT 2
-#define B43legacy_RX_CHAN_PHYTYPE 0x0003 /* PHY type */
-
-
-
-u8 b43legacy_plcp_get_ratecode_cck(const u8 bitrate);
-u8 b43legacy_plcp_get_ratecode_ofdm(const u8 bitrate);
-
-void b43legacy_generate_plcp_hdr(struct b43legacy_plcp_hdr4 *plcp,
- const u16 octets, const u8 bitrate);
-
-void b43legacy_rx(struct b43legacy_wldev *dev,
- struct sk_buff *skb,
- const void *_rxhdr);
-
-void b43legacy_handle_txstatus(struct b43legacy_wldev *dev,
- const struct b43legacy_txstatus *status);
-
-void b43legacy_handle_hwtxstatus(struct b43legacy_wldev *dev,
- const struct b43legacy_hwtxstatus *hw);
-
-void b43legacy_tx_suspend(struct b43legacy_wldev *dev);
-void b43legacy_tx_resume(struct b43legacy_wldev *dev);
-
-
-#define B43legacy_NR_QOSPARMS 22
-enum {
- B43legacy_QOSPARM_TXOP = 0,
- B43legacy_QOSPARM_CWMIN,
- B43legacy_QOSPARM_CWMAX,
- B43legacy_QOSPARM_CWCUR,
- B43legacy_QOSPARM_AIFS,
- B43legacy_QOSPARM_BSLOTS,
- B43legacy_QOSPARM_REGGAP,
- B43legacy_QOSPARM_STATUS,
-};
-
-void b43legacy_qos_init(struct b43legacy_wldev *dev);
-
-
-/* Helper functions for converting the key-table index from "firmware-format"
- * to "raw-format" and back. The firmware API changed for this at some revision.
- * We need to account for that here. */
-static inline
-int b43legacy_new_kidx_api(struct b43legacy_wldev *dev)
-{
- /* FIXME: Not sure the change was at rev 351 */
- return (dev->fw.rev >= 351);
-}
-static inline
-u8 b43legacy_kidx_to_fw(struct b43legacy_wldev *dev, u8 raw_kidx)
-{
- u8 firmware_kidx;
- if (b43legacy_new_kidx_api(dev))
- firmware_kidx = raw_kidx;
- else {
- if (raw_kidx >= 4) /* Is per STA key? */
- firmware_kidx = raw_kidx - 4;
- else
- firmware_kidx = raw_kidx; /* TX default key */
- }
- return firmware_kidx;
-}
-static inline
-u8 b43legacy_kidx_to_raw(struct b43legacy_wldev *dev, u8 firmware_kidx)
-{
- u8 raw_kidx;
- if (b43legacy_new_kidx_api(dev))
- raw_kidx = firmware_kidx;
- else
- /* RX default keys or per STA keys */
- raw_kidx = firmware_kidx + 4;
- return raw_kidx;
-}
-
-#endif /* B43legacy_XMIT_H_ */
if WLAN_VENDOR_BROADCOM
source "drivers/net/wireless/broadcom/b43/Kconfig"
+source "drivers/net/wireless/broadcom/b43legacy/Kconfig"
endif # WLAN_VENDOR_BROADCOM
obj-$(CONFIG_B43) += b43/
+obj-$(CONFIG_B43LEGACY) += b43legacy/
--- /dev/null
+config B43LEGACY
+ tristate "Broadcom 43xx-legacy wireless support (mac80211 stack)"
+ depends on SSB_POSSIBLE && MAC80211 && HAS_DMA
+ select SSB
+ select FW_LOADER
+ ---help---
+ b43legacy is a driver for 802.11b devices from Broadcom (BCM4301 and
+ BCM4303) and early model 802.11g chips (BCM4306 Ver. 2) used in the
+ Linksys WPC54G V1 PCMCIA devices.
+
+ Newer 802.11g and 802.11a devices need b43.
+
+ It is safe to include both b43 and b43legacy as the underlying glue
+ layer will automatically load the correct version for your device.
+
+ This driver uses V3 firmware, which must be installed separately using
+ b43-fwcutter.
+
+ This driver can be built as a module (recommended) that will be
+ called "b43legacy". If unsure, say M.
+
+# Auto-select SSB PCI-HOST support, if possible
+config B43LEGACY_PCI_AUTOSELECT
+ bool
+ depends on B43LEGACY && SSB_PCIHOST_POSSIBLE
+ select SSB_PCIHOST
+ select SSB_B43_PCI_BRIDGE
+ default y
+
+# Auto-select SSB PCICORE driver, if possible
+config B43LEGACY_PCICORE_AUTOSELECT
+ bool
+ depends on B43LEGACY && SSB_DRIVER_PCICORE_POSSIBLE
+ select SSB_DRIVER_PCICORE
+ default y
+
+# LED support
+# This config option automatically enables b43legacy LEDS support,
+# if it's possible.
+config B43LEGACY_LEDS
+ bool
+ depends on B43LEGACY && MAC80211_LEDS && (LEDS_CLASS = y || LEDS_CLASS = B43LEGACY)
+ default y
+
+# This config option automatically enables b43 HW-RNG support,
+# if the HW-RNG core is enabled.
+config B43LEGACY_HWRNG
+ bool
+ depends on B43LEGACY && (HW_RANDOM = y || HW_RANDOM = B43LEGACY)
+ default y
+
+config B43LEGACY_DEBUG
+ bool "Broadcom 43xx-legacy debugging"
+ depends on B43LEGACY
+ default y
+ ---help---
+ Say Y, because this information will help you get the driver running.
+ This option generates a minimum of log output.
+
+config B43LEGACY_DMA
+ bool
+ depends on B43LEGACY
+
+config B43LEGACY_PIO
+ bool
+ depends on B43LEGACY
+
+choice
+ prompt "Broadcom 43xx-legacy data transfer mode"
+ depends on B43LEGACY
+ default B43LEGACY_DMA_AND_PIO_MODE
+
+config B43LEGACY_DMA_AND_PIO_MODE
+ bool "DMA + PIO"
+ select B43LEGACY_DMA
+ select B43LEGACY_PIO
+ ---help---
+ Include both, Direct Memory Access (DMA) and Programmed I/O (PIO)
+ data transfer modes. The mode actually used is selectable through
+ the module parameter "pio". With pio=0 as a module parameter, the
+ default DMA is used, otherwise PIO is used.
+
+ If unsure, choose this option.
+
+config B43LEGACY_DMA_MODE
+ bool "DMA (Direct Memory Access) only"
+ select B43LEGACY_DMA
+ ---help---
+ Only include Direct Memory Access (DMA).
+ This reduces the size of the driver module, by omitting the PIO code.
+
+config B43LEGACY_PIO_MODE
+ bool "PIO (Programmed I/O) only"
+ select B43LEGACY_PIO
+ ---help---
+ Only include Programmed I/O (PIO).
+ This reduces the size of the driver module, by omitting the DMA code.
+ Please note that PIO transfers are slow (compared to DMA).
+
+ Also note that not all devices of the b43legacy series support PIO.
+
+ You should use PIO only if DMA does not work for you.
+
+endchoice
--- /dev/null
+# b43legacy core
+b43legacy-y += main.o
+b43legacy-y += ilt.o
+b43legacy-y += phy.o
+b43legacy-y += radio.o
+b43legacy-y += sysfs.o
+b43legacy-y += xmit.o
+# b43 RFKILL button support
+b43legacy-y += rfkill.o
+# b43legacy LED support
+b43legacy-$(CONFIG_B43LEGACY_LEDS) += leds.o
+# b43legacy debugging
+b43legacy-$(CONFIG_B43LEGACY_DEBUG) += debugfs.o
+# b43legacy DMA and PIO
+b43legacy-$(CONFIG_B43LEGACY_DMA) += dma.o
+b43legacy-$(CONFIG_B43LEGACY_PIO) += pio.o
+
+obj-$(CONFIG_B43LEGACY) += b43legacy.o
+
--- /dev/null
+#ifndef B43legacy_H_
+#define B43legacy_H_
+
+#include <linux/hw_random.h>
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/stringify.h>
+#include <linux/netdevice.h>
+#include <linux/pci.h>
+#include <linux/atomic.h>
+#include <linux/io.h>
+
+#include <linux/ssb/ssb.h>
+#include <linux/ssb/ssb_driver_chipcommon.h>
+#include <linux/completion.h>
+
+#include <net/mac80211.h>
+
+#include "debugfs.h"
+#include "leds.h"
+#include "rfkill.h"
+#include "phy.h"
+
+
+#define B43legacy_IRQWAIT_MAX_RETRIES 20
+
+/* MMIO offsets */
+#define B43legacy_MMIO_DMA0_REASON 0x20
+#define B43legacy_MMIO_DMA0_IRQ_MASK 0x24
+#define B43legacy_MMIO_DMA1_REASON 0x28
+#define B43legacy_MMIO_DMA1_IRQ_MASK 0x2C
+#define B43legacy_MMIO_DMA2_REASON 0x30
+#define B43legacy_MMIO_DMA2_IRQ_MASK 0x34
+#define B43legacy_MMIO_DMA3_REASON 0x38
+#define B43legacy_MMIO_DMA3_IRQ_MASK 0x3C
+#define B43legacy_MMIO_DMA4_REASON 0x40
+#define B43legacy_MMIO_DMA4_IRQ_MASK 0x44
+#define B43legacy_MMIO_DMA5_REASON 0x48
+#define B43legacy_MMIO_DMA5_IRQ_MASK 0x4C
+#define B43legacy_MMIO_MACCTL 0x120 /* MAC control */
+#define B43legacy_MMIO_MACCMD 0x124 /* MAC command */
+#define B43legacy_MMIO_GEN_IRQ_REASON 0x128
+#define B43legacy_MMIO_GEN_IRQ_MASK 0x12C
+#define B43legacy_MMIO_RAM_CONTROL 0x130
+#define B43legacy_MMIO_RAM_DATA 0x134
+#define B43legacy_MMIO_PS_STATUS 0x140
+#define B43legacy_MMIO_RADIO_HWENABLED_HI 0x158
+#define B43legacy_MMIO_SHM_CONTROL 0x160
+#define B43legacy_MMIO_SHM_DATA 0x164
+#define B43legacy_MMIO_SHM_DATA_UNALIGNED 0x166
+#define B43legacy_MMIO_XMITSTAT_0 0x170
+#define B43legacy_MMIO_XMITSTAT_1 0x174
+#define B43legacy_MMIO_REV3PLUS_TSF_LOW 0x180 /* core rev >= 3 only */
+#define B43legacy_MMIO_REV3PLUS_TSF_HIGH 0x184 /* core rev >= 3 only */
+#define B43legacy_MMIO_TSF_CFP_REP 0x188
+#define B43legacy_MMIO_TSF_CFP_START 0x18C
+/* 32-bit DMA */
+#define B43legacy_MMIO_DMA32_BASE0 0x200
+#define B43legacy_MMIO_DMA32_BASE1 0x220
+#define B43legacy_MMIO_DMA32_BASE2 0x240
+#define B43legacy_MMIO_DMA32_BASE3 0x260
+#define B43legacy_MMIO_DMA32_BASE4 0x280
+#define B43legacy_MMIO_DMA32_BASE5 0x2A0
+/* 64-bit DMA */
+#define B43legacy_MMIO_DMA64_BASE0 0x200
+#define B43legacy_MMIO_DMA64_BASE1 0x240
+#define B43legacy_MMIO_DMA64_BASE2 0x280
+#define B43legacy_MMIO_DMA64_BASE3 0x2C0
+#define B43legacy_MMIO_DMA64_BASE4 0x300
+#define B43legacy_MMIO_DMA64_BASE5 0x340
+/* PIO */
+#define B43legacy_MMIO_PIO1_BASE 0x300
+#define B43legacy_MMIO_PIO2_BASE 0x310
+#define B43legacy_MMIO_PIO3_BASE 0x320
+#define B43legacy_MMIO_PIO4_BASE 0x330
+
+#define B43legacy_MMIO_PHY_VER 0x3E0
+#define B43legacy_MMIO_PHY_RADIO 0x3E2
+#define B43legacy_MMIO_PHY0 0x3E6
+#define B43legacy_MMIO_ANTENNA 0x3E8
+#define B43legacy_MMIO_CHANNEL 0x3F0
+#define B43legacy_MMIO_CHANNEL_EXT 0x3F4
+#define B43legacy_MMIO_RADIO_CONTROL 0x3F6
+#define B43legacy_MMIO_RADIO_DATA_HIGH 0x3F8
+#define B43legacy_MMIO_RADIO_DATA_LOW 0x3FA
+#define B43legacy_MMIO_PHY_CONTROL 0x3FC
+#define B43legacy_MMIO_PHY_DATA 0x3FE
+#define B43legacy_MMIO_MACFILTER_CONTROL 0x420
+#define B43legacy_MMIO_MACFILTER_DATA 0x422
+#define B43legacy_MMIO_RCMTA_COUNT 0x43C /* Receive Match Transmitter Addr */
+#define B43legacy_MMIO_RADIO_HWENABLED_LO 0x49A
+#define B43legacy_MMIO_GPIO_CONTROL 0x49C
+#define B43legacy_MMIO_GPIO_MASK 0x49E
+#define B43legacy_MMIO_TSF_CFP_PRETBTT 0x612
+#define B43legacy_MMIO_TSF_0 0x632 /* core rev < 3 only */
+#define B43legacy_MMIO_TSF_1 0x634 /* core rev < 3 only */
+#define B43legacy_MMIO_TSF_2 0x636 /* core rev < 3 only */
+#define B43legacy_MMIO_TSF_3 0x638 /* core rev < 3 only */
+#define B43legacy_MMIO_RNG 0x65A
+#define B43legacy_MMIO_POWERUP_DELAY 0x6A8
+
+/* SPROM boardflags_lo values */
+#define B43legacy_BFL_PACTRL 0x0002
+#define B43legacy_BFL_RSSI 0x0008
+#define B43legacy_BFL_EXTLNA 0x1000
+
+/* GPIO register offset, in both ChipCommon and PCI core. */
+#define B43legacy_GPIO_CONTROL 0x6c
+
+/* SHM Routing */
+#define B43legacy_SHM_SHARED 0x0001
+#define B43legacy_SHM_WIRELESS 0x0002
+#define B43legacy_SHM_HW 0x0004
+#define B43legacy_SHM_UCODE 0x0300
+
+/* SHM Routing modifiers */
+#define B43legacy_SHM_AUTOINC_R 0x0200 /* Read Auto-increment */
+#define B43legacy_SHM_AUTOINC_W 0x0100 /* Write Auto-increment */
+#define B43legacy_SHM_AUTOINC_RW (B43legacy_SHM_AUTOINC_R | \
+ B43legacy_SHM_AUTOINC_W)
+
+/* Misc SHM_SHARED offsets */
+#define B43legacy_SHM_SH_WLCOREREV 0x0016 /* 802.11 core revision */
+#define B43legacy_SHM_SH_HOSTFLO 0x005E /* Hostflags ucode opts (low) */
+#define B43legacy_SHM_SH_HOSTFHI 0x0060 /* Hostflags ucode opts (high) */
+/* SHM_SHARED crypto engine */
+#define B43legacy_SHM_SH_KEYIDXBLOCK 0x05D4 /* Key index/algorithm block */
+/* SHM_SHARED beacon/AP variables */
+#define B43legacy_SHM_SH_DTIMP 0x0012 /* DTIM period */
+#define B43legacy_SHM_SH_BTL0 0x0018 /* Beacon template length 0 */
+#define B43legacy_SHM_SH_BTL1 0x001A /* Beacon template length 1 */
+#define B43legacy_SHM_SH_BTSFOFF 0x001C /* Beacon TSF offset */
+#define B43legacy_SHM_SH_TIMPOS 0x001E /* TIM position in beacon */
+#define B43legacy_SHM_SH_BEACPHYCTL 0x0054 /* Beacon PHY TX control word */
+/* SHM_SHARED ACK/CTS control */
+#define B43legacy_SHM_SH_ACKCTSPHYCTL 0x0022 /* ACK/CTS PHY control word */
+/* SHM_SHARED probe response variables */
+#define B43legacy_SHM_SH_PRTLEN 0x004A /* Probe Response template length */
+#define B43legacy_SHM_SH_PRMAXTIME 0x0074 /* Probe Response max time */
+#define B43legacy_SHM_SH_PRPHYCTL 0x0188 /* Probe Resp PHY TX control */
+/* SHM_SHARED rate tables */
+#define B43legacy_SHM_SH_OFDMDIRECT 0x0480 /* Pointer to OFDM direct map */
+#define B43legacy_SHM_SH_OFDMBASIC 0x04A0 /* Pointer to OFDM basic rate map */
+#define B43legacy_SHM_SH_CCKDIRECT 0x04C0 /* Pointer to CCK direct map */
+#define B43legacy_SHM_SH_CCKBASIC 0x04E0 /* Pointer to CCK basic rate map */
+/* SHM_SHARED microcode soft registers */
+#define B43legacy_SHM_SH_UCODEREV 0x0000 /* Microcode revision */
+#define B43legacy_SHM_SH_UCODEPATCH 0x0002 /* Microcode patchlevel */
+#define B43legacy_SHM_SH_UCODEDATE 0x0004 /* Microcode date */
+#define B43legacy_SHM_SH_UCODETIME 0x0006 /* Microcode time */
+#define B43legacy_SHM_SH_SPUWKUP 0x0094 /* pre-wakeup for synth PU in us */
+#define B43legacy_SHM_SH_PRETBTT 0x0096 /* pre-TBTT in us */
+
+#define B43legacy_UCODEFLAGS_OFFSET 0x005E
+
+/* Hardware Radio Enable masks */
+#define B43legacy_MMIO_RADIO_HWENABLED_HI_MASK (1 << 16)
+#define B43legacy_MMIO_RADIO_HWENABLED_LO_MASK (1 << 4)
+
+/* HostFlags. See b43legacy_hf_read/write() */
+#define B43legacy_HF_SYMW 0x00000002 /* G-PHY SYM workaround */
+#define B43legacy_HF_GDCW 0x00000020 /* G-PHY DV cancel filter */
+#define B43legacy_HF_OFDMPABOOST 0x00000040 /* Enable PA boost OFDM */
+#define B43legacy_HF_EDCF 0x00000100 /* on if WME/MAC suspended */
+
+/* MacFilter offsets. */
+#define B43legacy_MACFILTER_SELF 0x0000
+#define B43legacy_MACFILTER_BSSID 0x0003
+#define B43legacy_MACFILTER_MAC 0x0010
+
+/* PHYVersioning */
+#define B43legacy_PHYTYPE_B 0x01
+#define B43legacy_PHYTYPE_G 0x02
+
+/* PHYRegisters */
+#define B43legacy_PHY_G_LO_CONTROL 0x0810
+#define B43legacy_PHY_ILT_G_CTRL 0x0472
+#define B43legacy_PHY_ILT_G_DATA1 0x0473
+#define B43legacy_PHY_ILT_G_DATA2 0x0474
+#define B43legacy_PHY_G_PCTL 0x0029
+#define B43legacy_PHY_RADIO_BITFIELD 0x0401
+#define B43legacy_PHY_G_CRS 0x0429
+#define B43legacy_PHY_NRSSILT_CTRL 0x0803
+#define B43legacy_PHY_NRSSILT_DATA 0x0804
+
+/* RadioRegisters */
+#define B43legacy_RADIOCTL_ID 0x01
+
+/* MAC Control bitfield */
+#define B43legacy_MACCTL_ENABLED 0x00000001 /* MAC Enabled */
+#define B43legacy_MACCTL_PSM_RUN 0x00000002 /* Run Microcode */
+#define B43legacy_MACCTL_PSM_JMP0 0x00000004 /* Microcode jump to 0 */
+#define B43legacy_MACCTL_SHM_ENABLED 0x00000100 /* SHM Enabled */
+#define B43legacy_MACCTL_IHR_ENABLED 0x00000400 /* IHR Region Enabled */
+#define B43legacy_MACCTL_BE 0x00010000 /* Big Endian mode */
+#define B43legacy_MACCTL_INFRA 0x00020000 /* Infrastructure mode */
+#define B43legacy_MACCTL_AP 0x00040000 /* AccessPoint mode */
+#define B43legacy_MACCTL_RADIOLOCK 0x00080000 /* Radio lock */
+#define B43legacy_MACCTL_BEACPROMISC 0x00100000 /* Beacon Promiscuous */
+#define B43legacy_MACCTL_KEEP_BADPLCP 0x00200000 /* Keep bad PLCP frames */
+#define B43legacy_MACCTL_KEEP_CTL 0x00400000 /* Keep control frames */
+#define B43legacy_MACCTL_KEEP_BAD 0x00800000 /* Keep bad frames (FCS) */
+#define B43legacy_MACCTL_PROMISC 0x01000000 /* Promiscuous mode */
+#define B43legacy_MACCTL_HWPS 0x02000000 /* Hardware Power Saving */
+#define B43legacy_MACCTL_AWAKE 0x04000000 /* Device is awake */
+#define B43legacy_MACCTL_TBTTHOLD 0x10000000 /* TBTT Hold */
+#define B43legacy_MACCTL_GMODE 0x80000000 /* G Mode */
+
+/* MAC Command bitfield */
+#define B43legacy_MACCMD_BEACON0_VALID 0x00000001 /* Beacon 0 in template RAM is busy/valid */
+#define B43legacy_MACCMD_BEACON1_VALID 0x00000002 /* Beacon 1 in template RAM is busy/valid */
+#define B43legacy_MACCMD_DFQ_VALID 0x00000004 /* Directed frame queue valid (IBSS PS mode, ATIM) */
+#define B43legacy_MACCMD_CCA 0x00000008 /* Clear channel assessment */
+#define B43legacy_MACCMD_BGNOISE 0x00000010 /* Background noise */
+
+/* 802.11 core specific TM State Low flags */
+#define B43legacy_TMSLOW_GMODE 0x20000000 /* G Mode Enable */
+#define B43legacy_TMSLOW_PLLREFSEL 0x00200000 /* PLL Freq Ref Select */
+#define B43legacy_TMSLOW_MACPHYCLKEN 0x00100000 /* MAC PHY Clock Ctrl Enbl */
+#define B43legacy_TMSLOW_PHYRESET 0x00080000 /* PHY Reset */
+#define B43legacy_TMSLOW_PHYCLKEN 0x00040000 /* PHY Clock Enable */
+
+/* 802.11 core specific TM State High flags */
+#define B43legacy_TMSHIGH_FCLOCK 0x00040000 /* Fast Clock Available */
+#define B43legacy_TMSHIGH_GPHY 0x00010000 /* G-PHY avail (rev >= 5) */
+
+#define B43legacy_UCODEFLAG_AUTODIV 0x0001
+
+/* Generic-Interrupt reasons. */
+#define B43legacy_IRQ_MAC_SUSPENDED 0x00000001
+#define B43legacy_IRQ_BEACON 0x00000002
+#define B43legacy_IRQ_TBTT_INDI 0x00000004 /* Target Beacon Transmit Time */
+#define B43legacy_IRQ_BEACON_TX_OK 0x00000008
+#define B43legacy_IRQ_BEACON_CANCEL 0x00000010
+#define B43legacy_IRQ_ATIM_END 0x00000020
+#define B43legacy_IRQ_PMQ 0x00000040
+#define B43legacy_IRQ_PIO_WORKAROUND 0x00000100
+#define B43legacy_IRQ_MAC_TXERR 0x00000200
+#define B43legacy_IRQ_PHY_TXERR 0x00000800
+#define B43legacy_IRQ_PMEVENT 0x00001000
+#define B43legacy_IRQ_TIMER0 0x00002000
+#define B43legacy_IRQ_TIMER1 0x00004000
+#define B43legacy_IRQ_DMA 0x00008000
+#define B43legacy_IRQ_TXFIFO_FLUSH_OK 0x00010000
+#define B43legacy_IRQ_CCA_MEASURE_OK 0x00020000
+#define B43legacy_IRQ_NOISESAMPLE_OK 0x00040000
+#define B43legacy_IRQ_UCODE_DEBUG 0x08000000
+#define B43legacy_IRQ_RFKILL 0x10000000
+#define B43legacy_IRQ_TX_OK 0x20000000
+#define B43legacy_IRQ_PHY_G_CHANGED 0x40000000
+#define B43legacy_IRQ_TIMEOUT 0x80000000
+
+#define B43legacy_IRQ_ALL 0xFFFFFFFF
+#define B43legacy_IRQ_MASKTEMPLATE (B43legacy_IRQ_MAC_SUSPENDED | \
+ B43legacy_IRQ_TBTT_INDI | \
+ B43legacy_IRQ_ATIM_END | \
+ B43legacy_IRQ_PMQ | \
+ B43legacy_IRQ_MAC_TXERR | \
+ B43legacy_IRQ_PHY_TXERR | \
+ B43legacy_IRQ_DMA | \
+ B43legacy_IRQ_TXFIFO_FLUSH_OK | \
+ B43legacy_IRQ_NOISESAMPLE_OK | \
+ B43legacy_IRQ_UCODE_DEBUG | \
+ B43legacy_IRQ_RFKILL | \
+ B43legacy_IRQ_TX_OK)
+
+/* Device specific rate values.
+ * The actual values defined here are (rate_in_mbps * 2).
+ * Some code depends on this. Don't change it. */
+#define B43legacy_CCK_RATE_1MB 2
+#define B43legacy_CCK_RATE_2MB 4
+#define B43legacy_CCK_RATE_5MB 11
+#define B43legacy_CCK_RATE_11MB 22
+#define B43legacy_OFDM_RATE_6MB 12
+#define B43legacy_OFDM_RATE_9MB 18
+#define B43legacy_OFDM_RATE_12MB 24
+#define B43legacy_OFDM_RATE_18MB 36
+#define B43legacy_OFDM_RATE_24MB 48
+#define B43legacy_OFDM_RATE_36MB 72
+#define B43legacy_OFDM_RATE_48MB 96
+#define B43legacy_OFDM_RATE_54MB 108
+/* Convert a b43legacy rate value to a rate in 100kbps */
+#define B43legacy_RATE_TO_100KBPS(rate) (((rate) * 10) / 2)
+
+
+#define B43legacy_DEFAULT_SHORT_RETRY_LIMIT 7
+#define B43legacy_DEFAULT_LONG_RETRY_LIMIT 4
+
+#define B43legacy_PHY_TX_BADNESS_LIMIT 1000
+
+/* Max size of a security key */
+#define B43legacy_SEC_KEYSIZE 16
+/* Security algorithms. */
+enum {
+ B43legacy_SEC_ALGO_NONE = 0, /* unencrypted, as of TX header. */
+ B43legacy_SEC_ALGO_WEP40,
+ B43legacy_SEC_ALGO_TKIP,
+ B43legacy_SEC_ALGO_AES,
+ B43legacy_SEC_ALGO_WEP104,
+ B43legacy_SEC_ALGO_AES_LEGACY,
+};
+
+/* Core Information Registers */
+#define B43legacy_CIR_BASE 0xf00
+#define B43legacy_CIR_SBTPSFLAG (B43legacy_CIR_BASE + 0x18)
+#define B43legacy_CIR_SBIMSTATE (B43legacy_CIR_BASE + 0x90)
+#define B43legacy_CIR_SBINTVEC (B43legacy_CIR_BASE + 0x94)
+#define B43legacy_CIR_SBTMSTATELOW (B43legacy_CIR_BASE + 0x98)
+#define B43legacy_CIR_SBTMSTATEHIGH (B43legacy_CIR_BASE + 0x9c)
+#define B43legacy_CIR_SBIMCONFIGLOW (B43legacy_CIR_BASE + 0xa8)
+#define B43legacy_CIR_SB_ID_HI (B43legacy_CIR_BASE + 0xfc)
+
+/* sbtmstatehigh state flags */
+#define B43legacy_SBTMSTATEHIGH_SERROR 0x00000001
+#define B43legacy_SBTMSTATEHIGH_BUSY 0x00000004
+#define B43legacy_SBTMSTATEHIGH_TIMEOUT 0x00000020
+#define B43legacy_SBTMSTATEHIGH_G_PHY_AVAIL 0x00010000
+#define B43legacy_SBTMSTATEHIGH_COREFLAGS 0x1FFF0000
+#define B43legacy_SBTMSTATEHIGH_DMA64BIT 0x10000000
+#define B43legacy_SBTMSTATEHIGH_GATEDCLK 0x20000000
+#define B43legacy_SBTMSTATEHIGH_BISTFAILED 0x40000000
+#define B43legacy_SBTMSTATEHIGH_BISTCOMPLETE 0x80000000
+
+/* sbimstate flags */
+#define B43legacy_SBIMSTATE_IB_ERROR 0x20000
+#define B43legacy_SBIMSTATE_TIMEOUT 0x40000
+
+#define PFX KBUILD_MODNAME ": "
+#ifdef assert
+# undef assert
+#endif
+#ifdef CONFIG_B43LEGACY_DEBUG
+# define B43legacy_WARN_ON(x) WARN_ON(x)
+# define B43legacy_BUG_ON(expr) \
+ do { \
+ if (unlikely((expr))) { \
+ printk(KERN_INFO PFX "Test (%s) failed\n", \
+ #expr); \
+ BUG_ON(expr); \
+ } \
+ } while (0)
+# define B43legacy_DEBUG 1
+#else
+/* This will evaluate the argument even if debugging is disabled. */
+static inline bool __b43legacy_warn_on_dummy(bool x) { return x; }
+# define B43legacy_WARN_ON(x) __b43legacy_warn_on_dummy(unlikely(!!(x)))
+# define B43legacy_BUG_ON(x) do { /* nothing */ } while (0)
+# define B43legacy_DEBUG 0
+#endif
+
+
+struct net_device;
+struct pci_dev;
+struct b43legacy_dmaring;
+struct b43legacy_pioqueue;
+
+/* The firmware file header */
+#define B43legacy_FW_TYPE_UCODE 'u'
+#define B43legacy_FW_TYPE_PCM 'p'
+#define B43legacy_FW_TYPE_IV 'i'
+struct b43legacy_fw_header {
+ /* File type */
+ u8 type;
+ /* File format version */
+ u8 ver;
+ u8 __padding[2];
+ /* Size of the data. For ucode and PCM this is in bytes.
+ * For IV this is number-of-ivs. */
+ __be32 size;
+} __packed;
+
+/* Initial Value file format */
+#define B43legacy_IV_OFFSET_MASK 0x7FFF
+#define B43legacy_IV_32BIT 0x8000
+struct b43legacy_iv {
+ __be16 offset_size;
+ union {
+ __be16 d16;
+ __be32 d32;
+ } data __packed;
+} __packed;
+
+#define B43legacy_PHYMODE(phytype) (1 << (phytype))
+#define B43legacy_PHYMODE_B B43legacy_PHYMODE \
+ ((B43legacy_PHYTYPE_B))
+#define B43legacy_PHYMODE_G B43legacy_PHYMODE \
+ ((B43legacy_PHYTYPE_G))
+
+/* Value pair to measure the LocalOscillator. */
+struct b43legacy_lopair {
+ s8 low;
+ s8 high;
+ u8 used:1;
+};
+#define B43legacy_LO_COUNT (14*4)
+
+struct b43legacy_phy {
+ /* Possible PHYMODEs on this PHY */
+ u8 possible_phymodes;
+ /* GMODE bit enabled in MACCTL? */
+ bool gmode;
+
+ /* Analog Type */
+ u8 analog;
+ /* B43legacy_PHYTYPE_ */
+ u8 type;
+ /* PHY revision number. */
+ u8 rev;
+
+ u16 antenna_diversity;
+ u16 savedpctlreg;
+ /* Radio versioning */
+ u16 radio_manuf; /* Radio manufacturer */
+ u16 radio_ver; /* Radio version */
+ u8 calibrated:1;
+ u8 radio_rev; /* Radio revision */
+
+ bool dyn_tssi_tbl; /* tssi2dbm is kmalloc()ed. */
+
+ /* ACI (adjacent channel interference) flags. */
+ bool aci_enable;
+ bool aci_wlan_automatic;
+ bool aci_hw_rssi;
+
+ /* Radio switched on/off */
+ bool radio_on;
+ struct {
+ /* Values saved when turning the radio off.
+ * They are needed when turning it on again. */
+ bool valid;
+ u16 rfover;
+ u16 rfoverval;
+ } radio_off_context;
+
+ u16 minlowsig[2];
+ u16 minlowsigpos[2];
+
+ /* LO Measurement Data.
+ * Use b43legacy_get_lopair() to get a value.
+ */
+ struct b43legacy_lopair *_lo_pairs;
+ /* TSSI to dBm table in use */
+ const s8 *tssi2dbm;
+ /* idle TSSI value */
+ s8 idle_tssi;
+ /* Target idle TSSI */
+ int tgt_idle_tssi;
+ /* Current idle TSSI */
+ int cur_idle_tssi;
+
+ /* LocalOscillator control values. */
+ struct b43legacy_txpower_lo_control *lo_control;
+ /* Values from b43legacy_calc_loopback_gain() */
+ s16 max_lb_gain; /* Maximum Loopback gain in hdB */
+ s16 trsw_rx_gain; /* TRSW RX gain in hdB */
+ s16 lna_lod_gain; /* LNA lod */
+ s16 lna_gain; /* LNA */
+ s16 pga_gain; /* PGA */
+
+ /* Desired TX power level (in dBm). This is set by the user and
+ * adjusted in b43legacy_phy_xmitpower(). */
+ u8 power_level;
+
+ /* Values from b43legacy_calc_loopback_gain() */
+ u16 loopback_gain[2];
+
+ /* TX Power control values. */
+ /* B/G PHY */
+ struct {
+ /* Current Radio Attenuation for TXpower recalculation. */
+ u16 rfatt;
+ /* Current Baseband Attenuation for TXpower recalculation. */
+ u16 bbatt;
+ /* Current TXpower control value for TXpower recalculation. */
+ u16 txctl1;
+ u16 txctl2;
+ };
+ /* A PHY */
+ struct {
+ u16 txpwr_offset;
+ };
+
+ /* Current Interference Mitigation mode */
+ int interfmode;
+ /* Stack of saved values from the Interference Mitigation code.
+ * Each value in the stack is laid out as follows:
+ * bit 0-11: offset
+ * bit 12-15: register ID
+ * bit 16-32: value
+ * register ID is: 0x1 PHY, 0x2 Radio, 0x3 ILT
+ */
+#define B43legacy_INTERFSTACK_SIZE 26
+ u32 interfstack[B43legacy_INTERFSTACK_SIZE];
+
+ /* Saved values from the NRSSI Slope calculation */
+ s16 nrssi[2];
+ s32 nrssislope;
+ /* In memory nrssi lookup table. */
+ s8 nrssi_lt[64];
+
+ /* current channel */
+ u8 channel;
+
+ u16 lofcal;
+
+ u16 initval;
+
+ /* PHY TX errors counter. */
+ atomic_t txerr_cnt;
+
+#if B43legacy_DEBUG
+ /* Manual TX-power control enabled? */
+ bool manual_txpower_control;
+ /* PHY registers locked by b43legacy_phy_lock()? */
+ bool phy_locked;
+#endif /* B43legacy_DEBUG */
+};
+
+/* Data structures for DMA transmission, per 80211 core. */
+struct b43legacy_dma {
+ struct b43legacy_dmaring *tx_ring0;
+ struct b43legacy_dmaring *tx_ring1;
+ struct b43legacy_dmaring *tx_ring2;
+ struct b43legacy_dmaring *tx_ring3;
+ struct b43legacy_dmaring *tx_ring4;
+ struct b43legacy_dmaring *tx_ring5;
+
+ struct b43legacy_dmaring *rx_ring0;
+ struct b43legacy_dmaring *rx_ring3; /* only on core.rev < 5 */
+
+ u32 translation; /* Routing bits */
+};
+
+/* Data structures for PIO transmission, per 80211 core. */
+struct b43legacy_pio {
+ struct b43legacy_pioqueue *queue0;
+ struct b43legacy_pioqueue *queue1;
+ struct b43legacy_pioqueue *queue2;
+ struct b43legacy_pioqueue *queue3;
+};
+
+/* Context information for a noise calculation (Link Quality). */
+struct b43legacy_noise_calculation {
+ u8 channel_at_start;
+ bool calculation_running;
+ u8 nr_samples;
+ s8 samples[8][4];
+};
+
+struct b43legacy_stats {
+ u8 link_noise;
+ /* Store the last TX/RX times here for updating the leds. */
+ unsigned long last_tx;
+ unsigned long last_rx;
+};
+
+struct b43legacy_key {
+ void *keyconf;
+ bool enabled;
+ u8 algorithm;
+};
+
+#define B43legacy_QOS_QUEUE_NUM 4
+
+struct b43legacy_wldev;
+
+/* QOS parameters for a queue. */
+struct b43legacy_qos_params {
+ /* The QOS parameters */
+ struct ieee80211_tx_queue_params p;
+};
+
+/* Data structure for the WLAN parts (802.11 cores) of the b43legacy chip. */
+struct b43legacy_wl {
+ /* Pointer to the active wireless device on this chip */
+ struct b43legacy_wldev *current_dev;
+ /* Pointer to the ieee80211 hardware data structure */
+ struct ieee80211_hw *hw;
+
+ spinlock_t irq_lock; /* locks IRQ */
+ struct mutex mutex; /* locks wireless core state */
+ spinlock_t leds_lock; /* lock for leds */
+
+ /* firmware loading work */
+ struct work_struct firmware_load;
+
+ /* We can only have one operating interface (802.11 core)
+ * at a time. General information about this interface follows.
+ */
+
+ struct ieee80211_vif *vif;
+ /* MAC address (can be NULL). */
+ u8 mac_addr[ETH_ALEN];
+ /* Current BSSID (can be NULL). */
+ u8 bssid[ETH_ALEN];
+ /* Interface type. (IEEE80211_IF_TYPE_XXX) */
+ int if_type;
+ /* Is the card operating in AP, STA or IBSS mode? */
+ bool operating;
+ /* filter flags */
+ unsigned int filter_flags;
+ /* Stats about the wireless interface */
+ struct ieee80211_low_level_stats ieee_stats;
+
+#ifdef CONFIG_B43LEGACY_HWRNG
+ struct hwrng rng;
+ u8 rng_initialized;
+ char rng_name[30 + 1];
+#endif
+
+ /* List of all wireless devices on this chip */
+ struct list_head devlist;
+ u8 nr_devs;
+
+ bool radiotap_enabled;
+ bool radio_enabled;
+
+ /* The beacon we are currently using (AP or IBSS mode).
+ * This beacon stuff is protected by the irq_lock. */
+ struct sk_buff *current_beacon;
+ bool beacon0_uploaded;
+ bool beacon1_uploaded;
+ bool beacon_templates_virgin; /* Never wrote the templates? */
+ struct work_struct beacon_update_trigger;
+ /* The current QOS parameters for the 4 queues. */
+ struct b43legacy_qos_params qos_params[B43legacy_QOS_QUEUE_NUM];
+
+ /* Packet transmit work */
+ struct work_struct tx_work;
+
+ /* Queue of packets to be transmitted. */
+ struct sk_buff_head tx_queue[B43legacy_QOS_QUEUE_NUM];
+
+ /* Flag that implement the queues stopping. */
+ bool tx_queue_stopped[B43legacy_QOS_QUEUE_NUM];
+
+};
+
+/* Pointers to the firmware data and meta information about it. */
+struct b43legacy_firmware {
+ /* Microcode */
+ const struct firmware *ucode;
+ /* PCM code */
+ const struct firmware *pcm;
+ /* Initial MMIO values for the firmware */
+ const struct firmware *initvals;
+ /* Initial MMIO values for the firmware, band-specific */
+ const struct firmware *initvals_band;
+ /* Firmware revision */
+ u16 rev;
+ /* Firmware patchlevel */
+ u16 patch;
+};
+
+/* Device (802.11 core) initialization status. */
+enum {
+ B43legacy_STAT_UNINIT = 0, /* Uninitialized. */
+ B43legacy_STAT_INITIALIZED = 1, /* Initialized, not yet started. */
+ B43legacy_STAT_STARTED = 2, /* Up and running. */
+};
+#define b43legacy_status(wldev) atomic_read(&(wldev)->__init_status)
+#define b43legacy_set_status(wldev, stat) do { \
+ atomic_set(&(wldev)->__init_status, (stat)); \
+ smp_wmb(); \
+ } while (0)
+
+/* *** --- HOW LOCKING WORKS IN B43legacy --- ***
+ *
+ * You should always acquire both, wl->mutex and wl->irq_lock unless:
+ * - You don't need to acquire wl->irq_lock, if the interface is stopped.
+ * - You don't need to acquire wl->mutex in the IRQ handler, IRQ tasklet
+ * and packet TX path (and _ONLY_ there.)
+ */
+
+/* Data structure for one wireless device (802.11 core) */
+struct b43legacy_wldev {
+ struct ssb_device *dev;
+ struct b43legacy_wl *wl;
+
+ /* The device initialization status.
+ * Use b43legacy_status() to query. */
+ atomic_t __init_status;
+ /* Saved init status for handling suspend. */
+ int suspend_init_status;
+
+ bool __using_pio; /* Using pio rather than dma. */
+ bool bad_frames_preempt;/* Use "Bad Frames Preemption". */
+ bool dfq_valid; /* Directed frame queue valid (IBSS PS mode, ATIM). */
+ bool short_preamble; /* TRUE if using short preamble. */
+ bool radio_hw_enable; /* State of radio hardware enable bit. */
+
+ /* PHY/Radio device. */
+ struct b43legacy_phy phy;
+ union {
+ /* DMA engines. */
+ struct b43legacy_dma dma;
+ /* PIO engines. */
+ struct b43legacy_pio pio;
+ };
+
+ /* Various statistics about the physical device. */
+ struct b43legacy_stats stats;
+
+ /* The device LEDs. */
+ struct b43legacy_led led_tx;
+ struct b43legacy_led led_rx;
+ struct b43legacy_led led_assoc;
+ struct b43legacy_led led_radio;
+
+ /* Reason code of the last interrupt. */
+ u32 irq_reason;
+ u32 dma_reason[6];
+ /* The currently active generic-interrupt mask. */
+ u32 irq_mask;
+ /* Link Quality calculation context. */
+ struct b43legacy_noise_calculation noisecalc;
+ /* if > 0 MAC is suspended. if == 0 MAC is enabled. */
+ int mac_suspended;
+
+ /* Interrupt Service Routine tasklet (bottom-half) */
+ struct tasklet_struct isr_tasklet;
+
+ /* Periodic tasks */
+ struct delayed_work periodic_work;
+ unsigned int periodic_state;
+
+ struct work_struct restart_work;
+
+ /* encryption/decryption */
+ u16 ktp; /* Key table pointer */
+ u8 max_nr_keys;
+ struct b43legacy_key key[58];
+
+ /* Firmware data */
+ struct b43legacy_firmware fw;
+ const struct firmware *fwp; /* needed to pass fw pointer */
+
+ /* completion struct for firmware loading */
+ struct completion fw_load_complete;
+
+ /* Devicelist in struct b43legacy_wl (all 802.11 cores) */
+ struct list_head list;
+
+ /* Debugging stuff follows. */
+#ifdef CONFIG_B43LEGACY_DEBUG
+ struct b43legacy_dfsentry *dfsentry;
+#endif
+};
+
+
+static inline
+struct b43legacy_wl *hw_to_b43legacy_wl(struct ieee80211_hw *hw)
+{
+ return hw->priv;
+}
+
+/* Helper function, which returns a boolean.
+ * TRUE, if PIO is used; FALSE, if DMA is used.
+ */
+#if defined(CONFIG_B43LEGACY_DMA) && defined(CONFIG_B43LEGACY_PIO)
+static inline
+int b43legacy_using_pio(struct b43legacy_wldev *dev)
+{
+ return dev->__using_pio;
+}
+#elif defined(CONFIG_B43LEGACY_DMA)
+static inline
+int b43legacy_using_pio(struct b43legacy_wldev *dev)
+{
+ return 0;
+}
+#elif defined(CONFIG_B43LEGACY_PIO)
+static inline
+int b43legacy_using_pio(struct b43legacy_wldev *dev)
+{
+ return 1;
+}
+#else
+# error "Using neither DMA nor PIO? Confused..."
+#endif
+
+
+static inline
+struct b43legacy_wldev *dev_to_b43legacy_wldev(struct device *dev)
+{
+ struct ssb_device *ssb_dev = dev_to_ssb_dev(dev);
+ return ssb_get_drvdata(ssb_dev);
+}
+
+/* Is the device operating in a specified mode (IEEE80211_IF_TYPE_XXX). */
+static inline
+int b43legacy_is_mode(struct b43legacy_wl *wl, int type)
+{
+ return (wl->operating &&
+ wl->if_type == type);
+}
+
+static inline
+bool is_bcm_board_vendor(struct b43legacy_wldev *dev)
+{
+ return (dev->dev->bus->boardinfo.vendor == PCI_VENDOR_ID_BROADCOM);
+}
+
+static inline
+u16 b43legacy_read16(struct b43legacy_wldev *dev, u16 offset)
+{
+ return ssb_read16(dev->dev, offset);
+}
+
+static inline
+void b43legacy_write16(struct b43legacy_wldev *dev, u16 offset, u16 value)
+{
+ ssb_write16(dev->dev, offset, value);
+}
+
+static inline
+u32 b43legacy_read32(struct b43legacy_wldev *dev, u16 offset)
+{
+ return ssb_read32(dev->dev, offset);
+}
+
+static inline
+void b43legacy_write32(struct b43legacy_wldev *dev, u16 offset, u32 value)
+{
+ ssb_write32(dev->dev, offset, value);
+}
+
+static inline
+struct b43legacy_lopair *b43legacy_get_lopair(struct b43legacy_phy *phy,
+ u16 radio_attenuation,
+ u16 baseband_attenuation)
+{
+ return phy->_lo_pairs + (radio_attenuation
+ + 14 * (baseband_attenuation / 2));
+}
+
+
+
+/* Message printing */
+__printf(2, 3)
+void b43legacyinfo(struct b43legacy_wl *wl, const char *fmt, ...);
+__printf(2, 3)
+void b43legacyerr(struct b43legacy_wl *wl, const char *fmt, ...);
+__printf(2, 3)
+void b43legacywarn(struct b43legacy_wl *wl, const char *fmt, ...);
+#if B43legacy_DEBUG
+__printf(2, 3)
+void b43legacydbg(struct b43legacy_wl *wl, const char *fmt, ...);
+#else /* DEBUG */
+# define b43legacydbg(wl, fmt...) do { /* nothing */ } while (0)
+#endif /* DEBUG */
+
+/* Macros for printing a value in Q5.2 format */
+#define Q52_FMT "%u.%u"
+#define Q52_ARG(q52) ((q52) / 4), (((q52) & 3) * 100 / 4)
+
+#endif /* B43legacy_H_ */
--- /dev/null
+/*
+
+ Broadcom B43legacy wireless driver
+
+ debugfs driver debugging code
+
+ Copyright (c) 2005-2007 Michael Buesch <m@bues.ch>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+
+*/
+
+#include <linux/fs.h>
+#include <linux/debugfs.h>
+#include <linux/slab.h>
+#include <linux/netdevice.h>
+#include <linux/pci.h>
+#include <linux/mutex.h>
+
+#include "b43legacy.h"
+#include "main.h"
+#include "debugfs.h"
+#include "dma.h"
+#include "pio.h"
+#include "xmit.h"
+
+
+/* The root directory. */
+static struct dentry *rootdir;
+
+struct b43legacy_debugfs_fops {
+ ssize_t (*read)(struct b43legacy_wldev *dev, char *buf, size_t bufsize);
+ int (*write)(struct b43legacy_wldev *dev, const char *buf, size_t count);
+ struct file_operations fops;
+ /* Offset of struct b43legacy_dfs_file in struct b43legacy_dfsentry */
+ size_t file_struct_offset;
+ /* Take wl->irq_lock before calling read/write? */
+ bool take_irqlock;
+};
+
+static inline
+struct b43legacy_dfs_file * fops_to_dfs_file(struct b43legacy_wldev *dev,
+ const struct b43legacy_debugfs_fops *dfops)
+{
+ void *p;
+
+ p = dev->dfsentry;
+ p += dfops->file_struct_offset;
+
+ return p;
+}
+
+
+#define fappend(fmt, x...) \
+ do { \
+ if (bufsize - count) \
+ count += snprintf(buf + count, \
+ bufsize - count, \
+ fmt , ##x); \
+ else \
+ printk(KERN_ERR "b43legacy: fappend overflow\n"); \
+ } while (0)
+
+
+/* wl->irq_lock is locked */
+static ssize_t tsf_read_file(struct b43legacy_wldev *dev, char *buf, size_t bufsize)
+{
+ ssize_t count = 0;
+ u64 tsf;
+
+ b43legacy_tsf_read(dev, &tsf);
+ fappend("0x%08x%08x\n",
+ (unsigned int)((tsf & 0xFFFFFFFF00000000ULL) >> 32),
+ (unsigned int)(tsf & 0xFFFFFFFFULL));
+
+ return count;
+}
+
+/* wl->irq_lock is locked */
+static int tsf_write_file(struct b43legacy_wldev *dev, const char *buf, size_t count)
+{
+ u64 tsf;
+
+ if (sscanf(buf, "%llu", (unsigned long long *)(&tsf)) != 1)
+ return -EINVAL;
+ b43legacy_tsf_write(dev, tsf);
+
+ return 0;
+}
+
+/* wl->irq_lock is locked */
+static ssize_t ucode_regs_read_file(struct b43legacy_wldev *dev, char *buf, size_t bufsize)
+{
+ ssize_t count = 0;
+ int i;
+
+ for (i = 0; i < 64; i++) {
+ fappend("r%d = 0x%04x\n", i,
+ b43legacy_shm_read16(dev, B43legacy_SHM_WIRELESS, i));
+ }
+
+ return count;
+}
+
+/* wl->irq_lock is locked */
+static ssize_t shm_read_file(struct b43legacy_wldev *dev, char *buf, size_t bufsize)
+{
+ ssize_t count = 0;
+ int i;
+ u16 tmp;
+ __le16 *le16buf = (__le16 *)buf;
+
+ for (i = 0; i < 0x1000; i++) {
+ if (bufsize < sizeof(tmp))
+ break;
+ tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 2 * i);
+ le16buf[i] = cpu_to_le16(tmp);
+ count += sizeof(tmp);
+ bufsize -= sizeof(tmp);
+ }
+
+ return count;
+}
+
+static ssize_t txstat_read_file(struct b43legacy_wldev *dev, char *buf, size_t bufsize)
+{
+ struct b43legacy_txstatus_log *log = &dev->dfsentry->txstatlog;
+ ssize_t count = 0;
+ unsigned long flags;
+ int i, idx;
+ struct b43legacy_txstatus *stat;
+
+ spin_lock_irqsave(&log->lock, flags);
+ if (log->end < 0) {
+ fappend("Nothing transmitted, yet\n");
+ goto out_unlock;
+ }
+ fappend("b43legacy TX status reports:\n\n"
+ "index | cookie | seq | phy_stat | frame_count | "
+ "rts_count | supp_reason | pm_indicated | "
+ "intermediate | for_ampdu | acked\n" "---\n");
+ i = log->end + 1;
+ idx = 0;
+ while (1) {
+ if (i == B43legacy_NR_LOGGED_TXSTATUS)
+ i = 0;
+ stat = &(log->log[i]);
+ if (stat->cookie) {
+ fappend("%03d | "
+ "0x%04X | 0x%04X | 0x%02X | "
+ "0x%X | 0x%X | "
+ "%u | %u | "
+ "%u | %u | %u\n",
+ idx,
+ stat->cookie, stat->seq, stat->phy_stat,
+ stat->frame_count, stat->rts_count,
+ stat->supp_reason, stat->pm_indicated,
+ stat->intermediate, stat->for_ampdu,
+ stat->acked);
+ idx++;
+ }
+ if (i == log->end)
+ break;
+ i++;
+ }
+out_unlock:
+ spin_unlock_irqrestore(&log->lock, flags);
+
+ return count;
+}
+
+/* wl->irq_lock is locked */
+static int restart_write_file(struct b43legacy_wldev *dev, const char *buf, size_t count)
+{
+ int err = 0;
+
+ if (count > 0 && buf[0] == '1') {
+ b43legacy_controller_restart(dev, "manually restarted");
+ } else
+ err = -EINVAL;
+
+ return err;
+}
+
+#undef fappend
+
+static ssize_t b43legacy_debugfs_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct b43legacy_wldev *dev;
+ struct b43legacy_debugfs_fops *dfops;
+ struct b43legacy_dfs_file *dfile;
+ ssize_t uninitialized_var(ret);
+ char *buf;
+ const size_t bufsize = 1024 * 16; /* 16 KiB buffer */
+ const size_t buforder = get_order(bufsize);
+ int err = 0;
+
+ if (!count)
+ return 0;
+ dev = file->private_data;
+ if (!dev)
+ return -ENODEV;
+
+ mutex_lock(&dev->wl->mutex);
+ if (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED) {
+ err = -ENODEV;
+ goto out_unlock;
+ }
+
+ dfops = container_of(file->f_op, struct b43legacy_debugfs_fops, fops);
+ if (!dfops->read) {
+ err = -ENOSYS;
+ goto out_unlock;
+ }
+ dfile = fops_to_dfs_file(dev, dfops);
+
+ if (!dfile->buffer) {
+ buf = (char *)__get_free_pages(GFP_KERNEL, buforder);
+ if (!buf) {
+ err = -ENOMEM;
+ goto out_unlock;
+ }
+ memset(buf, 0, bufsize);
+ if (dfops->take_irqlock) {
+ spin_lock_irq(&dev->wl->irq_lock);
+ ret = dfops->read(dev, buf, bufsize);
+ spin_unlock_irq(&dev->wl->irq_lock);
+ } else
+ ret = dfops->read(dev, buf, bufsize);
+ if (ret <= 0) {
+ free_pages((unsigned long)buf, buforder);
+ err = ret;
+ goto out_unlock;
+ }
+ dfile->data_len = ret;
+ dfile->buffer = buf;
+ }
+
+ ret = simple_read_from_buffer(userbuf, count, ppos,
+ dfile->buffer,
+ dfile->data_len);
+ if (*ppos >= dfile->data_len) {
+ free_pages((unsigned long)dfile->buffer, buforder);
+ dfile->buffer = NULL;
+ dfile->data_len = 0;
+ }
+out_unlock:
+ mutex_unlock(&dev->wl->mutex);
+
+ return err ? err : ret;
+}
+
+static ssize_t b43legacy_debugfs_write(struct file *file,
+ const char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct b43legacy_wldev *dev;
+ struct b43legacy_debugfs_fops *dfops;
+ char *buf;
+ int err = 0;
+
+ if (!count)
+ return 0;
+ if (count > PAGE_SIZE)
+ return -E2BIG;
+ dev = file->private_data;
+ if (!dev)
+ return -ENODEV;
+
+ mutex_lock(&dev->wl->mutex);
+ if (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED) {
+ err = -ENODEV;
+ goto out_unlock;
+ }
+
+ dfops = container_of(file->f_op, struct b43legacy_debugfs_fops, fops);
+ if (!dfops->write) {
+ err = -ENOSYS;
+ goto out_unlock;
+ }
+
+ buf = (char *)get_zeroed_page(GFP_KERNEL);
+ if (!buf) {
+ err = -ENOMEM;
+ goto out_unlock;
+ }
+ if (copy_from_user(buf, userbuf, count)) {
+ err = -EFAULT;
+ goto out_freepage;
+ }
+ if (dfops->take_irqlock) {
+ spin_lock_irq(&dev->wl->irq_lock);
+ err = dfops->write(dev, buf, count);
+ spin_unlock_irq(&dev->wl->irq_lock);
+ } else
+ err = dfops->write(dev, buf, count);
+ if (err)
+ goto out_freepage;
+
+out_freepage:
+ free_page((unsigned long)buf);
+out_unlock:
+ mutex_unlock(&dev->wl->mutex);
+
+ return err ? err : count;
+}
+
+
+#define B43legacy_DEBUGFS_FOPS(name, _read, _write, _take_irqlock) \
+ static struct b43legacy_debugfs_fops fops_##name = { \
+ .read = _read, \
+ .write = _write, \
+ .fops = { \
+ .open = simple_open, \
+ .read = b43legacy_debugfs_read, \
+ .write = b43legacy_debugfs_write, \
+ .llseek = generic_file_llseek, \
+ }, \
+ .file_struct_offset = offsetof(struct b43legacy_dfsentry, \
+ file_##name), \
+ .take_irqlock = _take_irqlock, \
+ }
+
+B43legacy_DEBUGFS_FOPS(tsf, tsf_read_file, tsf_write_file, 1);
+B43legacy_DEBUGFS_FOPS(ucode_regs, ucode_regs_read_file, NULL, 1);
+B43legacy_DEBUGFS_FOPS(shm, shm_read_file, NULL, 1);
+B43legacy_DEBUGFS_FOPS(txstat, txstat_read_file, NULL, 0);
+B43legacy_DEBUGFS_FOPS(restart, NULL, restart_write_file, 1);
+
+
+int b43legacy_debug(struct b43legacy_wldev *dev, enum b43legacy_dyndbg feature)
+{
+ return !!(dev->dfsentry && dev->dfsentry->dyn_debug[feature]);
+}
+
+static void b43legacy_remove_dynamic_debug(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_dfsentry *e = dev->dfsentry;
+ int i;
+
+ for (i = 0; i < __B43legacy_NR_DYNDBG; i++)
+ debugfs_remove(e->dyn_debug_dentries[i]);
+}
+
+static void b43legacy_add_dynamic_debug(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_dfsentry *e = dev->dfsentry;
+ struct dentry *d;
+
+#define add_dyn_dbg(name, id, initstate) do { \
+ e->dyn_debug[id] = (initstate); \
+ d = debugfs_create_bool(name, 0600, e->subdir, \
+ &(e->dyn_debug[id])); \
+ if (!IS_ERR(d)) \
+ e->dyn_debug_dentries[id] = d; \
+ } while (0)
+
+ add_dyn_dbg("debug_xmitpower", B43legacy_DBG_XMITPOWER, false);
+ add_dyn_dbg("debug_dmaoverflow", B43legacy_DBG_DMAOVERFLOW, false);
+ add_dyn_dbg("debug_dmaverbose", B43legacy_DBG_DMAVERBOSE, false);
+ add_dyn_dbg("debug_pwork_fast", B43legacy_DBG_PWORK_FAST, false);
+ add_dyn_dbg("debug_pwork_stop", B43legacy_DBG_PWORK_STOP, false);
+
+#undef add_dyn_dbg
+}
+
+void b43legacy_debugfs_add_device(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_dfsentry *e;
+ struct b43legacy_txstatus_log *log;
+ char devdir[16];
+
+ B43legacy_WARN_ON(!dev);
+ e = kzalloc(sizeof(*e), GFP_KERNEL);
+ if (!e) {
+ b43legacyerr(dev->wl, "debugfs: add device OOM\n");
+ return;
+ }
+ e->dev = dev;
+ log = &e->txstatlog;
+ log->log = kcalloc(B43legacy_NR_LOGGED_TXSTATUS,
+ sizeof(struct b43legacy_txstatus), GFP_KERNEL);
+ if (!log->log) {
+ b43legacyerr(dev->wl, "debugfs: add device txstatus OOM\n");
+ kfree(e);
+ return;
+ }
+ log->end = -1;
+ spin_lock_init(&log->lock);
+
+ dev->dfsentry = e;
+
+ snprintf(devdir, sizeof(devdir), "%s", wiphy_name(dev->wl->hw->wiphy));
+ e->subdir = debugfs_create_dir(devdir, rootdir);
+ if (!e->subdir || IS_ERR(e->subdir)) {
+ if (e->subdir == ERR_PTR(-ENODEV)) {
+ b43legacydbg(dev->wl, "DebugFS (CONFIG_DEBUG_FS) not "
+ "enabled in kernel config\n");
+ } else {
+ b43legacyerr(dev->wl, "debugfs: cannot create %s directory\n",
+ devdir);
+ }
+ dev->dfsentry = NULL;
+ kfree(log->log);
+ kfree(e);
+ return;
+ }
+
+#define ADD_FILE(name, mode) \
+ do { \
+ struct dentry *d; \
+ d = debugfs_create_file(__stringify(name), \
+ mode, e->subdir, dev, \
+ &fops_##name.fops); \
+ e->file_##name.dentry = NULL; \
+ if (!IS_ERR(d)) \
+ e->file_##name.dentry = d; \
+ } while (0)
+
+
+ ADD_FILE(tsf, 0600);
+ ADD_FILE(ucode_regs, 0400);
+ ADD_FILE(shm, 0400);
+ ADD_FILE(txstat, 0400);
+ ADD_FILE(restart, 0200);
+
+#undef ADD_FILE
+
+ b43legacy_add_dynamic_debug(dev);
+}
+
+void b43legacy_debugfs_remove_device(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_dfsentry *e;
+
+ if (!dev)
+ return;
+ e = dev->dfsentry;
+ if (!e)
+ return;
+ b43legacy_remove_dynamic_debug(dev);
+
+ debugfs_remove(e->file_tsf.dentry);
+ debugfs_remove(e->file_ucode_regs.dentry);
+ debugfs_remove(e->file_shm.dentry);
+ debugfs_remove(e->file_txstat.dentry);
+ debugfs_remove(e->file_restart.dentry);
+
+ debugfs_remove(e->subdir);
+ kfree(e->txstatlog.log);
+ kfree(e);
+}
+
+void b43legacy_debugfs_log_txstat(struct b43legacy_wldev *dev,
+ const struct b43legacy_txstatus *status)
+{
+ struct b43legacy_dfsentry *e = dev->dfsentry;
+ struct b43legacy_txstatus_log *log;
+ struct b43legacy_txstatus *cur;
+ int i;
+
+ if (!e)
+ return;
+ log = &e->txstatlog;
+ B43legacy_WARN_ON(!irqs_disabled());
+ spin_lock(&log->lock);
+ i = log->end + 1;
+ if (i == B43legacy_NR_LOGGED_TXSTATUS)
+ i = 0;
+ log->end = i;
+ cur = &(log->log[i]);
+ memcpy(cur, status, sizeof(*cur));
+ spin_unlock(&log->lock);
+}
+
+void b43legacy_debugfs_init(void)
+{
+ rootdir = debugfs_create_dir(KBUILD_MODNAME, NULL);
+ if (IS_ERR(rootdir))
+ rootdir = NULL;
+}
+
+void b43legacy_debugfs_exit(void)
+{
+ debugfs_remove(rootdir);
+}
--- /dev/null
+#ifndef B43legacy_DEBUGFS_H_
+#define B43legacy_DEBUGFS_H_
+
+struct b43legacy_wldev;
+struct b43legacy_txstatus;
+
+enum b43legacy_dyndbg { /* Dynamic debugging features */
+ B43legacy_DBG_XMITPOWER,
+ B43legacy_DBG_DMAOVERFLOW,
+ B43legacy_DBG_DMAVERBOSE,
+ B43legacy_DBG_PWORK_FAST,
+ B43legacy_DBG_PWORK_STOP,
+ __B43legacy_NR_DYNDBG,
+};
+
+
+#ifdef CONFIG_B43LEGACY_DEBUG
+
+struct dentry;
+
+#define B43legacy_NR_LOGGED_TXSTATUS 100
+
+struct b43legacy_txstatus_log {
+ struct b43legacy_txstatus *log;
+ int end;
+ spinlock_t lock; /* lock for debugging */
+};
+
+struct b43legacy_dfs_file {
+ struct dentry *dentry;
+ char *buffer;
+ size_t data_len;
+};
+
+struct b43legacy_dfsentry {
+ struct b43legacy_wldev *dev;
+ struct dentry *subdir;
+
+ struct b43legacy_dfs_file file_tsf;
+ struct b43legacy_dfs_file file_ucode_regs;
+ struct b43legacy_dfs_file file_shm;
+ struct b43legacy_dfs_file file_txstat;
+ struct b43legacy_dfs_file file_txpower_g;
+ struct b43legacy_dfs_file file_restart;
+ struct b43legacy_dfs_file file_loctls;
+
+ struct b43legacy_txstatus_log txstatlog;
+
+ /* Enabled/Disabled list for the dynamic debugging features. */
+ bool dyn_debug[__B43legacy_NR_DYNDBG];
+ /* Dentries for the dynamic debugging entries. */
+ struct dentry *dyn_debug_dentries[__B43legacy_NR_DYNDBG];
+};
+
+int b43legacy_debug(struct b43legacy_wldev *dev,
+ enum b43legacy_dyndbg feature);
+
+void b43legacy_debugfs_init(void);
+void b43legacy_debugfs_exit(void);
+void b43legacy_debugfs_add_device(struct b43legacy_wldev *dev);
+void b43legacy_debugfs_remove_device(struct b43legacy_wldev *dev);
+void b43legacy_debugfs_log_txstat(struct b43legacy_wldev *dev,
+ const struct b43legacy_txstatus *status);
+
+#else /* CONFIG_B43LEGACY_DEBUG*/
+
+static inline
+int b43legacy_debug(struct b43legacy_wldev *dev,
+ enum b43legacy_dyndbg feature)
+{
+ return 0;
+}
+
+static inline
+void b43legacy_debugfs_init(void) { }
+static inline
+void b43legacy_debugfs_exit(void) { }
+static inline
+void b43legacy_debugfs_add_device(struct b43legacy_wldev *dev) { }
+static inline
+void b43legacy_debugfs_remove_device(struct b43legacy_wldev *dev) { }
+static inline
+void b43legacy_debugfs_log_txstat(struct b43legacy_wldev *dev,
+ const struct b43legacy_txstatus *status)
+ { }
+
+#endif /* CONFIG_B43LEGACY_DEBUG*/
+
+#endif /* B43legacy_DEBUGFS_H_ */
--- /dev/null
+/*
+
+ Broadcom B43legacy wireless driver
+
+ DMA ringbuffer and descriptor allocation/management
+
+ Copyright (c) 2005, 2006 Michael Buesch <m@bues.ch>
+
+ Some code in this file is derived from the b44.c driver
+ Copyright (C) 2002 David S. Miller
+ Copyright (C) Pekka Pietikainen
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+
+*/
+
+#include "b43legacy.h"
+#include "dma.h"
+#include "main.h"
+#include "debugfs.h"
+#include "xmit.h"
+
+#include <linux/dma-mapping.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/skbuff.h>
+#include <linux/slab.h>
+#include <net/dst.h>
+
+/* 32bit DMA ops. */
+static
+struct b43legacy_dmadesc32 *op32_idx2desc(struct b43legacy_dmaring *ring,
+ int slot,
+ struct b43legacy_dmadesc_meta **meta)
+{
+ struct b43legacy_dmadesc32 *desc;
+
+ *meta = &(ring->meta[slot]);
+ desc = ring->descbase;
+ desc = &(desc[slot]);
+
+ return desc;
+}
+
+static void op32_fill_descriptor(struct b43legacy_dmaring *ring,
+ struct b43legacy_dmadesc32 *desc,
+ dma_addr_t dmaaddr, u16 bufsize,
+ int start, int end, int irq)
+{
+ struct b43legacy_dmadesc32 *descbase = ring->descbase;
+ int slot;
+ u32 ctl;
+ u32 addr;
+ u32 addrext;
+
+ slot = (int)(desc - descbase);
+ B43legacy_WARN_ON(!(slot >= 0 && slot < ring->nr_slots));
+
+ addr = (u32)(dmaaddr & ~SSB_DMA_TRANSLATION_MASK);
+ addrext = (u32)(dmaaddr & SSB_DMA_TRANSLATION_MASK)
+ >> SSB_DMA_TRANSLATION_SHIFT;
+ addr |= ring->dev->dma.translation;
+ ctl = (bufsize - ring->frameoffset)
+ & B43legacy_DMA32_DCTL_BYTECNT;
+ if (slot == ring->nr_slots - 1)
+ ctl |= B43legacy_DMA32_DCTL_DTABLEEND;
+ if (start)
+ ctl |= B43legacy_DMA32_DCTL_FRAMESTART;
+ if (end)
+ ctl |= B43legacy_DMA32_DCTL_FRAMEEND;
+ if (irq)
+ ctl |= B43legacy_DMA32_DCTL_IRQ;
+ ctl |= (addrext << B43legacy_DMA32_DCTL_ADDREXT_SHIFT)
+ & B43legacy_DMA32_DCTL_ADDREXT_MASK;
+
+ desc->control = cpu_to_le32(ctl);
+ desc->address = cpu_to_le32(addr);
+}
+
+static void op32_poke_tx(struct b43legacy_dmaring *ring, int slot)
+{
+ b43legacy_dma_write(ring, B43legacy_DMA32_TXINDEX,
+ (u32)(slot * sizeof(struct b43legacy_dmadesc32)));
+}
+
+static void op32_tx_suspend(struct b43legacy_dmaring *ring)
+{
+ b43legacy_dma_write(ring, B43legacy_DMA32_TXCTL,
+ b43legacy_dma_read(ring, B43legacy_DMA32_TXCTL)
+ | B43legacy_DMA32_TXSUSPEND);
+}
+
+static void op32_tx_resume(struct b43legacy_dmaring *ring)
+{
+ b43legacy_dma_write(ring, B43legacy_DMA32_TXCTL,
+ b43legacy_dma_read(ring, B43legacy_DMA32_TXCTL)
+ & ~B43legacy_DMA32_TXSUSPEND);
+}
+
+static int op32_get_current_rxslot(struct b43legacy_dmaring *ring)
+{
+ u32 val;
+
+ val = b43legacy_dma_read(ring, B43legacy_DMA32_RXSTATUS);
+ val &= B43legacy_DMA32_RXDPTR;
+
+ return (val / sizeof(struct b43legacy_dmadesc32));
+}
+
+static void op32_set_current_rxslot(struct b43legacy_dmaring *ring,
+ int slot)
+{
+ b43legacy_dma_write(ring, B43legacy_DMA32_RXINDEX,
+ (u32)(slot * sizeof(struct b43legacy_dmadesc32)));
+}
+
+static inline int free_slots(struct b43legacy_dmaring *ring)
+{
+ return (ring->nr_slots - ring->used_slots);
+}
+
+static inline int next_slot(struct b43legacy_dmaring *ring, int slot)
+{
+ B43legacy_WARN_ON(!(slot >= -1 && slot <= ring->nr_slots - 1));
+ if (slot == ring->nr_slots - 1)
+ return 0;
+ return slot + 1;
+}
+
+static inline int prev_slot(struct b43legacy_dmaring *ring, int slot)
+{
+ B43legacy_WARN_ON(!(slot >= 0 && slot <= ring->nr_slots - 1));
+ if (slot == 0)
+ return ring->nr_slots - 1;
+ return slot - 1;
+}
+
+#ifdef CONFIG_B43LEGACY_DEBUG
+static void update_max_used_slots(struct b43legacy_dmaring *ring,
+ int current_used_slots)
+{
+ if (current_used_slots <= ring->max_used_slots)
+ return;
+ ring->max_used_slots = current_used_slots;
+ if (b43legacy_debug(ring->dev, B43legacy_DBG_DMAVERBOSE))
+ b43legacydbg(ring->dev->wl,
+ "max_used_slots increased to %d on %s ring %d\n",
+ ring->max_used_slots,
+ ring->tx ? "TX" : "RX",
+ ring->index);
+}
+#else
+static inline
+void update_max_used_slots(struct b43legacy_dmaring *ring,
+ int current_used_slots)
+{ }
+#endif /* DEBUG */
+
+/* Request a slot for usage. */
+static inline
+int request_slot(struct b43legacy_dmaring *ring)
+{
+ int slot;
+
+ B43legacy_WARN_ON(!ring->tx);
+ B43legacy_WARN_ON(ring->stopped);
+ B43legacy_WARN_ON(free_slots(ring) == 0);
+
+ slot = next_slot(ring, ring->current_slot);
+ ring->current_slot = slot;
+ ring->used_slots++;
+
+ update_max_used_slots(ring, ring->used_slots);
+
+ return slot;
+}
+
+/* Mac80211-queue to b43legacy-ring mapping */
+static struct b43legacy_dmaring *priority_to_txring(
+ struct b43legacy_wldev *dev,
+ int queue_priority)
+{
+ struct b43legacy_dmaring *ring;
+
+/*FIXME: For now we always run on TX-ring-1 */
+return dev->dma.tx_ring1;
+
+ /* 0 = highest priority */
+ switch (queue_priority) {
+ default:
+ B43legacy_WARN_ON(1);
+ /* fallthrough */
+ case 0:
+ ring = dev->dma.tx_ring3;
+ break;
+ case 1:
+ ring = dev->dma.tx_ring2;
+ break;
+ case 2:
+ ring = dev->dma.tx_ring1;
+ break;
+ case 3:
+ ring = dev->dma.tx_ring0;
+ break;
+ case 4:
+ ring = dev->dma.tx_ring4;
+ break;
+ case 5:
+ ring = dev->dma.tx_ring5;
+ break;
+ }
+
+ return ring;
+}
+
+/* Bcm4301-ring to mac80211-queue mapping */
+static inline int txring_to_priority(struct b43legacy_dmaring *ring)
+{
+ static const u8 idx_to_prio[] =
+ { 3, 2, 1, 0, 4, 5, };
+
+/*FIXME: have only one queue, for now */
+return 0;
+
+ return idx_to_prio[ring->index];
+}
+
+
+static u16 b43legacy_dmacontroller_base(enum b43legacy_dmatype type,
+ int controller_idx)
+{
+ static const u16 map32[] = {
+ B43legacy_MMIO_DMA32_BASE0,
+ B43legacy_MMIO_DMA32_BASE1,
+ B43legacy_MMIO_DMA32_BASE2,
+ B43legacy_MMIO_DMA32_BASE3,
+ B43legacy_MMIO_DMA32_BASE4,
+ B43legacy_MMIO_DMA32_BASE5,
+ };
+
+ B43legacy_WARN_ON(!(controller_idx >= 0 &&
+ controller_idx < ARRAY_SIZE(map32)));
+ return map32[controller_idx];
+}
+
+static inline
+dma_addr_t map_descbuffer(struct b43legacy_dmaring *ring,
+ unsigned char *buf,
+ size_t len,
+ int tx)
+{
+ dma_addr_t dmaaddr;
+
+ if (tx)
+ dmaaddr = dma_map_single(ring->dev->dev->dma_dev,
+ buf, len,
+ DMA_TO_DEVICE);
+ else
+ dmaaddr = dma_map_single(ring->dev->dev->dma_dev,
+ buf, len,
+ DMA_FROM_DEVICE);
+
+ return dmaaddr;
+}
+
+static inline
+void unmap_descbuffer(struct b43legacy_dmaring *ring,
+ dma_addr_t addr,
+ size_t len,
+ int tx)
+{
+ if (tx)
+ dma_unmap_single(ring->dev->dev->dma_dev,
+ addr, len,
+ DMA_TO_DEVICE);
+ else
+ dma_unmap_single(ring->dev->dev->dma_dev,
+ addr, len,
+ DMA_FROM_DEVICE);
+}
+
+static inline
+void sync_descbuffer_for_cpu(struct b43legacy_dmaring *ring,
+ dma_addr_t addr,
+ size_t len)
+{
+ B43legacy_WARN_ON(ring->tx);
+
+ dma_sync_single_for_cpu(ring->dev->dev->dma_dev,
+ addr, len, DMA_FROM_DEVICE);
+}
+
+static inline
+void sync_descbuffer_for_device(struct b43legacy_dmaring *ring,
+ dma_addr_t addr,
+ size_t len)
+{
+ B43legacy_WARN_ON(ring->tx);
+
+ dma_sync_single_for_device(ring->dev->dev->dma_dev,
+ addr, len, DMA_FROM_DEVICE);
+}
+
+static inline
+void free_descriptor_buffer(struct b43legacy_dmaring *ring,
+ struct b43legacy_dmadesc_meta *meta,
+ int irq_context)
+{
+ if (meta->skb) {
+ if (irq_context)
+ dev_kfree_skb_irq(meta->skb);
+ else
+ dev_kfree_skb(meta->skb);
+ meta->skb = NULL;
+ }
+}
+
+static int alloc_ringmemory(struct b43legacy_dmaring *ring)
+{
+ /* GFP flags must match the flags in free_ringmemory()! */
+ ring->descbase = dma_zalloc_coherent(ring->dev->dev->dma_dev,
+ B43legacy_DMA_RINGMEMSIZE,
+ &(ring->dmabase), GFP_KERNEL);
+ if (!ring->descbase)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static void free_ringmemory(struct b43legacy_dmaring *ring)
+{
+ dma_free_coherent(ring->dev->dev->dma_dev, B43legacy_DMA_RINGMEMSIZE,
+ ring->descbase, ring->dmabase);
+}
+
+/* Reset the RX DMA channel */
+static int b43legacy_dmacontroller_rx_reset(struct b43legacy_wldev *dev,
+ u16 mmio_base,
+ enum b43legacy_dmatype type)
+{
+ int i;
+ u32 value;
+ u16 offset;
+
+ might_sleep();
+
+ offset = B43legacy_DMA32_RXCTL;
+ b43legacy_write32(dev, mmio_base + offset, 0);
+ for (i = 0; i < 10; i++) {
+ offset = B43legacy_DMA32_RXSTATUS;
+ value = b43legacy_read32(dev, mmio_base + offset);
+ value &= B43legacy_DMA32_RXSTATE;
+ if (value == B43legacy_DMA32_RXSTAT_DISABLED) {
+ i = -1;
+ break;
+ }
+ msleep(1);
+ }
+ if (i != -1) {
+ b43legacyerr(dev->wl, "DMA RX reset timed out\n");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+/* Reset the RX DMA channel */
+static int b43legacy_dmacontroller_tx_reset(struct b43legacy_wldev *dev,
+ u16 mmio_base,
+ enum b43legacy_dmatype type)
+{
+ int i;
+ u32 value;
+ u16 offset;
+
+ might_sleep();
+
+ for (i = 0; i < 10; i++) {
+ offset = B43legacy_DMA32_TXSTATUS;
+ value = b43legacy_read32(dev, mmio_base + offset);
+ value &= B43legacy_DMA32_TXSTATE;
+ if (value == B43legacy_DMA32_TXSTAT_DISABLED ||
+ value == B43legacy_DMA32_TXSTAT_IDLEWAIT ||
+ value == B43legacy_DMA32_TXSTAT_STOPPED)
+ break;
+ msleep(1);
+ }
+ offset = B43legacy_DMA32_TXCTL;
+ b43legacy_write32(dev, mmio_base + offset, 0);
+ for (i = 0; i < 10; i++) {
+ offset = B43legacy_DMA32_TXSTATUS;
+ value = b43legacy_read32(dev, mmio_base + offset);
+ value &= B43legacy_DMA32_TXSTATE;
+ if (value == B43legacy_DMA32_TXSTAT_DISABLED) {
+ i = -1;
+ break;
+ }
+ msleep(1);
+ }
+ if (i != -1) {
+ b43legacyerr(dev->wl, "DMA TX reset timed out\n");
+ return -ENODEV;
+ }
+ /* ensure the reset is completed. */
+ msleep(1);
+
+ return 0;
+}
+
+/* Check if a DMA mapping address is invalid. */
+static bool b43legacy_dma_mapping_error(struct b43legacy_dmaring *ring,
+ dma_addr_t addr,
+ size_t buffersize,
+ bool dma_to_device)
+{
+ if (unlikely(dma_mapping_error(ring->dev->dev->dma_dev, addr)))
+ return true;
+
+ switch (ring->type) {
+ case B43legacy_DMA_30BIT:
+ if ((u64)addr + buffersize > (1ULL << 30))
+ goto address_error;
+ break;
+ case B43legacy_DMA_32BIT:
+ if ((u64)addr + buffersize > (1ULL << 32))
+ goto address_error;
+ break;
+ }
+
+ /* The address is OK. */
+ return false;
+
+address_error:
+ /* We can't support this address. Unmap it again. */
+ unmap_descbuffer(ring, addr, buffersize, dma_to_device);
+
+ return true;
+}
+
+static int setup_rx_descbuffer(struct b43legacy_dmaring *ring,
+ struct b43legacy_dmadesc32 *desc,
+ struct b43legacy_dmadesc_meta *meta,
+ gfp_t gfp_flags)
+{
+ struct b43legacy_rxhdr_fw3 *rxhdr;
+ struct b43legacy_hwtxstatus *txstat;
+ dma_addr_t dmaaddr;
+ struct sk_buff *skb;
+
+ B43legacy_WARN_ON(ring->tx);
+
+ skb = __dev_alloc_skb(ring->rx_buffersize, gfp_flags);
+ if (unlikely(!skb))
+ return -ENOMEM;
+ dmaaddr = map_descbuffer(ring, skb->data,
+ ring->rx_buffersize, 0);
+ if (b43legacy_dma_mapping_error(ring, dmaaddr, ring->rx_buffersize, 0)) {
+ /* ugh. try to realloc in zone_dma */
+ gfp_flags |= GFP_DMA;
+
+ dev_kfree_skb_any(skb);
+
+ skb = __dev_alloc_skb(ring->rx_buffersize, gfp_flags);
+ if (unlikely(!skb))
+ return -ENOMEM;
+ dmaaddr = map_descbuffer(ring, skb->data,
+ ring->rx_buffersize, 0);
+ }
+
+ if (b43legacy_dma_mapping_error(ring, dmaaddr, ring->rx_buffersize, 0)) {
+ dev_kfree_skb_any(skb);
+ return -EIO;
+ }
+
+ meta->skb = skb;
+ meta->dmaaddr = dmaaddr;
+ op32_fill_descriptor(ring, desc, dmaaddr, ring->rx_buffersize, 0, 0, 0);
+
+ rxhdr = (struct b43legacy_rxhdr_fw3 *)(skb->data);
+ rxhdr->frame_len = 0;
+ txstat = (struct b43legacy_hwtxstatus *)(skb->data);
+ txstat->cookie = 0;
+
+ return 0;
+}
+
+/* Allocate the initial descbuffers.
+ * This is used for an RX ring only.
+ */
+static int alloc_initial_descbuffers(struct b43legacy_dmaring *ring)
+{
+ int i;
+ int err = -ENOMEM;
+ struct b43legacy_dmadesc32 *desc;
+ struct b43legacy_dmadesc_meta *meta;
+
+ for (i = 0; i < ring->nr_slots; i++) {
+ desc = op32_idx2desc(ring, i, &meta);
+
+ err = setup_rx_descbuffer(ring, desc, meta, GFP_KERNEL);
+ if (err) {
+ b43legacyerr(ring->dev->wl,
+ "Failed to allocate initial descbuffers\n");
+ goto err_unwind;
+ }
+ }
+ mb(); /* all descbuffer setup before next line */
+ ring->used_slots = ring->nr_slots;
+ err = 0;
+out:
+ return err;
+
+err_unwind:
+ for (i--; i >= 0; i--) {
+ desc = op32_idx2desc(ring, i, &meta);
+
+ unmap_descbuffer(ring, meta->dmaaddr, ring->rx_buffersize, 0);
+ dev_kfree_skb(meta->skb);
+ }
+ goto out;
+}
+
+/* Do initial setup of the DMA controller.
+ * Reset the controller, write the ring busaddress
+ * and switch the "enable" bit on.
+ */
+static int dmacontroller_setup(struct b43legacy_dmaring *ring)
+{
+ int err = 0;
+ u32 value;
+ u32 addrext;
+ u32 trans = ring->dev->dma.translation;
+ u32 ringbase = (u32)(ring->dmabase);
+
+ if (ring->tx) {
+ addrext = (ringbase & SSB_DMA_TRANSLATION_MASK)
+ >> SSB_DMA_TRANSLATION_SHIFT;
+ value = B43legacy_DMA32_TXENABLE;
+ value |= (addrext << B43legacy_DMA32_TXADDREXT_SHIFT)
+ & B43legacy_DMA32_TXADDREXT_MASK;
+ b43legacy_dma_write(ring, B43legacy_DMA32_TXCTL, value);
+ b43legacy_dma_write(ring, B43legacy_DMA32_TXRING,
+ (ringbase & ~SSB_DMA_TRANSLATION_MASK)
+ | trans);
+ } else {
+ err = alloc_initial_descbuffers(ring);
+ if (err)
+ goto out;
+
+ addrext = (ringbase & SSB_DMA_TRANSLATION_MASK)
+ >> SSB_DMA_TRANSLATION_SHIFT;
+ value = (ring->frameoffset <<
+ B43legacy_DMA32_RXFROFF_SHIFT);
+ value |= B43legacy_DMA32_RXENABLE;
+ value |= (addrext << B43legacy_DMA32_RXADDREXT_SHIFT)
+ & B43legacy_DMA32_RXADDREXT_MASK;
+ b43legacy_dma_write(ring, B43legacy_DMA32_RXCTL, value);
+ b43legacy_dma_write(ring, B43legacy_DMA32_RXRING,
+ (ringbase & ~SSB_DMA_TRANSLATION_MASK)
+ | trans);
+ b43legacy_dma_write(ring, B43legacy_DMA32_RXINDEX, 200);
+ }
+
+out:
+ return err;
+}
+
+/* Shutdown the DMA controller. */
+static void dmacontroller_cleanup(struct b43legacy_dmaring *ring)
+{
+ if (ring->tx) {
+ b43legacy_dmacontroller_tx_reset(ring->dev, ring->mmio_base,
+ ring->type);
+ b43legacy_dma_write(ring, B43legacy_DMA32_TXRING, 0);
+ } else {
+ b43legacy_dmacontroller_rx_reset(ring->dev, ring->mmio_base,
+ ring->type);
+ b43legacy_dma_write(ring, B43legacy_DMA32_RXRING, 0);
+ }
+}
+
+static void free_all_descbuffers(struct b43legacy_dmaring *ring)
+{
+ struct b43legacy_dmadesc_meta *meta;
+ int i;
+
+ if (!ring->used_slots)
+ return;
+ for (i = 0; i < ring->nr_slots; i++) {
+ op32_idx2desc(ring, i, &meta);
+
+ if (!meta->skb) {
+ B43legacy_WARN_ON(!ring->tx);
+ continue;
+ }
+ if (ring->tx)
+ unmap_descbuffer(ring, meta->dmaaddr,
+ meta->skb->len, 1);
+ else
+ unmap_descbuffer(ring, meta->dmaaddr,
+ ring->rx_buffersize, 0);
+ free_descriptor_buffer(ring, meta, 0);
+ }
+}
+
+static u64 supported_dma_mask(struct b43legacy_wldev *dev)
+{
+ u32 tmp;
+ u16 mmio_base;
+
+ mmio_base = b43legacy_dmacontroller_base(0, 0);
+ b43legacy_write32(dev,
+ mmio_base + B43legacy_DMA32_TXCTL,
+ B43legacy_DMA32_TXADDREXT_MASK);
+ tmp = b43legacy_read32(dev, mmio_base +
+ B43legacy_DMA32_TXCTL);
+ if (tmp & B43legacy_DMA32_TXADDREXT_MASK)
+ return DMA_BIT_MASK(32);
+
+ return DMA_BIT_MASK(30);
+}
+
+static enum b43legacy_dmatype dma_mask_to_engine_type(u64 dmamask)
+{
+ if (dmamask == DMA_BIT_MASK(30))
+ return B43legacy_DMA_30BIT;
+ if (dmamask == DMA_BIT_MASK(32))
+ return B43legacy_DMA_32BIT;
+ B43legacy_WARN_ON(1);
+ return B43legacy_DMA_30BIT;
+}
+
+/* Main initialization function. */
+static
+struct b43legacy_dmaring *b43legacy_setup_dmaring(struct b43legacy_wldev *dev,
+ int controller_index,
+ int for_tx,
+ enum b43legacy_dmatype type)
+{
+ struct b43legacy_dmaring *ring;
+ int err;
+ int nr_slots;
+ dma_addr_t dma_test;
+
+ ring = kzalloc(sizeof(*ring), GFP_KERNEL);
+ if (!ring)
+ goto out;
+ ring->type = type;
+ ring->dev = dev;
+
+ nr_slots = B43legacy_RXRING_SLOTS;
+ if (for_tx)
+ nr_slots = B43legacy_TXRING_SLOTS;
+
+ ring->meta = kcalloc(nr_slots, sizeof(struct b43legacy_dmadesc_meta),
+ GFP_KERNEL);
+ if (!ring->meta)
+ goto err_kfree_ring;
+ if (for_tx) {
+ ring->txhdr_cache = kcalloc(nr_slots,
+ sizeof(struct b43legacy_txhdr_fw3),
+ GFP_KERNEL);
+ if (!ring->txhdr_cache)
+ goto err_kfree_meta;
+
+ /* test for ability to dma to txhdr_cache */
+ dma_test = dma_map_single(dev->dev->dma_dev, ring->txhdr_cache,
+ sizeof(struct b43legacy_txhdr_fw3),
+ DMA_TO_DEVICE);
+
+ if (b43legacy_dma_mapping_error(ring, dma_test,
+ sizeof(struct b43legacy_txhdr_fw3), 1)) {
+ /* ugh realloc */
+ kfree(ring->txhdr_cache);
+ ring->txhdr_cache = kcalloc(nr_slots,
+ sizeof(struct b43legacy_txhdr_fw3),
+ GFP_KERNEL | GFP_DMA);
+ if (!ring->txhdr_cache)
+ goto err_kfree_meta;
+
+ dma_test = dma_map_single(dev->dev->dma_dev,
+ ring->txhdr_cache,
+ sizeof(struct b43legacy_txhdr_fw3),
+ DMA_TO_DEVICE);
+
+ if (b43legacy_dma_mapping_error(ring, dma_test,
+ sizeof(struct b43legacy_txhdr_fw3), 1))
+ goto err_kfree_txhdr_cache;
+ }
+
+ dma_unmap_single(dev->dev->dma_dev, dma_test,
+ sizeof(struct b43legacy_txhdr_fw3),
+ DMA_TO_DEVICE);
+ }
+
+ ring->nr_slots = nr_slots;
+ ring->mmio_base = b43legacy_dmacontroller_base(type, controller_index);
+ ring->index = controller_index;
+ if (for_tx) {
+ ring->tx = true;
+ ring->current_slot = -1;
+ } else {
+ if (ring->index == 0) {
+ ring->rx_buffersize = B43legacy_DMA0_RX_BUFFERSIZE;
+ ring->frameoffset = B43legacy_DMA0_RX_FRAMEOFFSET;
+ } else if (ring->index == 3) {
+ ring->rx_buffersize = B43legacy_DMA3_RX_BUFFERSIZE;
+ ring->frameoffset = B43legacy_DMA3_RX_FRAMEOFFSET;
+ } else
+ B43legacy_WARN_ON(1);
+ }
+#ifdef CONFIG_B43LEGACY_DEBUG
+ ring->last_injected_overflow = jiffies;
+#endif
+
+ err = alloc_ringmemory(ring);
+ if (err)
+ goto err_kfree_txhdr_cache;
+ err = dmacontroller_setup(ring);
+ if (err)
+ goto err_free_ringmemory;
+
+out:
+ return ring;
+
+err_free_ringmemory:
+ free_ringmemory(ring);
+err_kfree_txhdr_cache:
+ kfree(ring->txhdr_cache);
+err_kfree_meta:
+ kfree(ring->meta);
+err_kfree_ring:
+ kfree(ring);
+ ring = NULL;
+ goto out;
+}
+
+/* Main cleanup function. */
+static void b43legacy_destroy_dmaring(struct b43legacy_dmaring *ring)
+{
+ if (!ring)
+ return;
+
+ b43legacydbg(ring->dev->wl, "DMA-%u 0x%04X (%s) max used slots:"
+ " %d/%d\n", (unsigned int)(ring->type), ring->mmio_base,
+ (ring->tx) ? "TX" : "RX", ring->max_used_slots,
+ ring->nr_slots);
+ /* Device IRQs are disabled prior entering this function,
+ * so no need to take care of concurrency with rx handler stuff.
+ */
+ dmacontroller_cleanup(ring);
+ free_all_descbuffers(ring);
+ free_ringmemory(ring);
+
+ kfree(ring->txhdr_cache);
+ kfree(ring->meta);
+ kfree(ring);
+}
+
+void b43legacy_dma_free(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_dma *dma;
+
+ if (b43legacy_using_pio(dev))
+ return;
+ dma = &dev->dma;
+
+ b43legacy_destroy_dmaring(dma->rx_ring3);
+ dma->rx_ring3 = NULL;
+ b43legacy_destroy_dmaring(dma->rx_ring0);
+ dma->rx_ring0 = NULL;
+
+ b43legacy_destroy_dmaring(dma->tx_ring5);
+ dma->tx_ring5 = NULL;
+ b43legacy_destroy_dmaring(dma->tx_ring4);
+ dma->tx_ring4 = NULL;
+ b43legacy_destroy_dmaring(dma->tx_ring3);
+ dma->tx_ring3 = NULL;
+ b43legacy_destroy_dmaring(dma->tx_ring2);
+ dma->tx_ring2 = NULL;
+ b43legacy_destroy_dmaring(dma->tx_ring1);
+ dma->tx_ring1 = NULL;
+ b43legacy_destroy_dmaring(dma->tx_ring0);
+ dma->tx_ring0 = NULL;
+}
+
+static int b43legacy_dma_set_mask(struct b43legacy_wldev *dev, u64 mask)
+{
+ u64 orig_mask = mask;
+ bool fallback = false;
+ int err;
+
+ /* Try to set the DMA mask. If it fails, try falling back to a
+ * lower mask, as we can always also support a lower one. */
+ while (1) {
+ err = dma_set_mask_and_coherent(dev->dev->dma_dev, mask);
+ if (!err)
+ break;
+ if (mask == DMA_BIT_MASK(64)) {
+ mask = DMA_BIT_MASK(32);
+ fallback = true;
+ continue;
+ }
+ if (mask == DMA_BIT_MASK(32)) {
+ mask = DMA_BIT_MASK(30);
+ fallback = true;
+ continue;
+ }
+ b43legacyerr(dev->wl, "The machine/kernel does not support "
+ "the required %u-bit DMA mask\n",
+ (unsigned int)dma_mask_to_engine_type(orig_mask));
+ return -EOPNOTSUPP;
+ }
+ if (fallback) {
+ b43legacyinfo(dev->wl, "DMA mask fallback from %u-bit to %u-"
+ "bit\n",
+ (unsigned int)dma_mask_to_engine_type(orig_mask),
+ (unsigned int)dma_mask_to_engine_type(mask));
+ }
+
+ return 0;
+}
+
+int b43legacy_dma_init(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_dma *dma = &dev->dma;
+ struct b43legacy_dmaring *ring;
+ int err;
+ u64 dmamask;
+ enum b43legacy_dmatype type;
+
+ dmamask = supported_dma_mask(dev);
+ type = dma_mask_to_engine_type(dmamask);
+ err = b43legacy_dma_set_mask(dev, dmamask);
+ if (err) {
+#ifdef CONFIG_B43LEGACY_PIO
+ b43legacywarn(dev->wl, "DMA for this device not supported. "
+ "Falling back to PIO\n");
+ dev->__using_pio = true;
+ return -EAGAIN;
+#else
+ b43legacyerr(dev->wl, "DMA for this device not supported and "
+ "no PIO support compiled in\n");
+ return -EOPNOTSUPP;
+#endif
+ }
+ dma->translation = ssb_dma_translation(dev->dev);
+
+ err = -ENOMEM;
+ /* setup TX DMA channels. */
+ ring = b43legacy_setup_dmaring(dev, 0, 1, type);
+ if (!ring)
+ goto out;
+ dma->tx_ring0 = ring;
+
+ ring = b43legacy_setup_dmaring(dev, 1, 1, type);
+ if (!ring)
+ goto err_destroy_tx0;
+ dma->tx_ring1 = ring;
+
+ ring = b43legacy_setup_dmaring(dev, 2, 1, type);
+ if (!ring)
+ goto err_destroy_tx1;
+ dma->tx_ring2 = ring;
+
+ ring = b43legacy_setup_dmaring(dev, 3, 1, type);
+ if (!ring)
+ goto err_destroy_tx2;
+ dma->tx_ring3 = ring;
+
+ ring = b43legacy_setup_dmaring(dev, 4, 1, type);
+ if (!ring)
+ goto err_destroy_tx3;
+ dma->tx_ring4 = ring;
+
+ ring = b43legacy_setup_dmaring(dev, 5, 1, type);
+ if (!ring)
+ goto err_destroy_tx4;
+ dma->tx_ring5 = ring;
+
+ /* setup RX DMA channels. */
+ ring = b43legacy_setup_dmaring(dev, 0, 0, type);
+ if (!ring)
+ goto err_destroy_tx5;
+ dma->rx_ring0 = ring;
+
+ if (dev->dev->id.revision < 5) {
+ ring = b43legacy_setup_dmaring(dev, 3, 0, type);
+ if (!ring)
+ goto err_destroy_rx0;
+ dma->rx_ring3 = ring;
+ }
+
+ b43legacydbg(dev->wl, "%u-bit DMA initialized\n", (unsigned int)type);
+ err = 0;
+out:
+ return err;
+
+err_destroy_rx0:
+ b43legacy_destroy_dmaring(dma->rx_ring0);
+ dma->rx_ring0 = NULL;
+err_destroy_tx5:
+ b43legacy_destroy_dmaring(dma->tx_ring5);
+ dma->tx_ring5 = NULL;
+err_destroy_tx4:
+ b43legacy_destroy_dmaring(dma->tx_ring4);
+ dma->tx_ring4 = NULL;
+err_destroy_tx3:
+ b43legacy_destroy_dmaring(dma->tx_ring3);
+ dma->tx_ring3 = NULL;
+err_destroy_tx2:
+ b43legacy_destroy_dmaring(dma->tx_ring2);
+ dma->tx_ring2 = NULL;
+err_destroy_tx1:
+ b43legacy_destroy_dmaring(dma->tx_ring1);
+ dma->tx_ring1 = NULL;
+err_destroy_tx0:
+ b43legacy_destroy_dmaring(dma->tx_ring0);
+ dma->tx_ring0 = NULL;
+ goto out;
+}
+
+/* Generate a cookie for the TX header. */
+static u16 generate_cookie(struct b43legacy_dmaring *ring,
+ int slot)
+{
+ u16 cookie = 0x1000;
+
+ /* Use the upper 4 bits of the cookie as
+ * DMA controller ID and store the slot number
+ * in the lower 12 bits.
+ * Note that the cookie must never be 0, as this
+ * is a special value used in RX path.
+ */
+ switch (ring->index) {
+ case 0:
+ cookie = 0xA000;
+ break;
+ case 1:
+ cookie = 0xB000;
+ break;
+ case 2:
+ cookie = 0xC000;
+ break;
+ case 3:
+ cookie = 0xD000;
+ break;
+ case 4:
+ cookie = 0xE000;
+ break;
+ case 5:
+ cookie = 0xF000;
+ break;
+ }
+ B43legacy_WARN_ON(!(((u16)slot & 0xF000) == 0x0000));
+ cookie |= (u16)slot;
+
+ return cookie;
+}
+
+/* Inspect a cookie and find out to which controller/slot it belongs. */
+static
+struct b43legacy_dmaring *parse_cookie(struct b43legacy_wldev *dev,
+ u16 cookie, int *slot)
+{
+ struct b43legacy_dma *dma = &dev->dma;
+ struct b43legacy_dmaring *ring = NULL;
+
+ switch (cookie & 0xF000) {
+ case 0xA000:
+ ring = dma->tx_ring0;
+ break;
+ case 0xB000:
+ ring = dma->tx_ring1;
+ break;
+ case 0xC000:
+ ring = dma->tx_ring2;
+ break;
+ case 0xD000:
+ ring = dma->tx_ring3;
+ break;
+ case 0xE000:
+ ring = dma->tx_ring4;
+ break;
+ case 0xF000:
+ ring = dma->tx_ring5;
+ break;
+ default:
+ B43legacy_WARN_ON(1);
+ }
+ *slot = (cookie & 0x0FFF);
+ B43legacy_WARN_ON(!(ring && *slot >= 0 && *slot < ring->nr_slots));
+
+ return ring;
+}
+
+static int dma_tx_fragment(struct b43legacy_dmaring *ring,
+ struct sk_buff **in_skb)
+{
+ struct sk_buff *skb = *in_skb;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ u8 *header;
+ int slot, old_top_slot, old_used_slots;
+ int err;
+ struct b43legacy_dmadesc32 *desc;
+ struct b43legacy_dmadesc_meta *meta;
+ struct b43legacy_dmadesc_meta *meta_hdr;
+ struct sk_buff *bounce_skb;
+
+#define SLOTS_PER_PACKET 2
+ B43legacy_WARN_ON(skb_shinfo(skb)->nr_frags != 0);
+
+ old_top_slot = ring->current_slot;
+ old_used_slots = ring->used_slots;
+
+ /* Get a slot for the header. */
+ slot = request_slot(ring);
+ desc = op32_idx2desc(ring, slot, &meta_hdr);
+ memset(meta_hdr, 0, sizeof(*meta_hdr));
+
+ header = &(ring->txhdr_cache[slot * sizeof(
+ struct b43legacy_txhdr_fw3)]);
+ err = b43legacy_generate_txhdr(ring->dev, header,
+ skb->data, skb->len, info,
+ generate_cookie(ring, slot));
+ if (unlikely(err)) {
+ ring->current_slot = old_top_slot;
+ ring->used_slots = old_used_slots;
+ return err;
+ }
+
+ meta_hdr->dmaaddr = map_descbuffer(ring, (unsigned char *)header,
+ sizeof(struct b43legacy_txhdr_fw3), 1);
+ if (b43legacy_dma_mapping_error(ring, meta_hdr->dmaaddr,
+ sizeof(struct b43legacy_txhdr_fw3), 1)) {
+ ring->current_slot = old_top_slot;
+ ring->used_slots = old_used_slots;
+ return -EIO;
+ }
+ op32_fill_descriptor(ring, desc, meta_hdr->dmaaddr,
+ sizeof(struct b43legacy_txhdr_fw3), 1, 0, 0);
+
+ /* Get a slot for the payload. */
+ slot = request_slot(ring);
+ desc = op32_idx2desc(ring, slot, &meta);
+ memset(meta, 0, sizeof(*meta));
+
+ meta->skb = skb;
+ meta->is_last_fragment = true;
+
+ meta->dmaaddr = map_descbuffer(ring, skb->data, skb->len, 1);
+ /* create a bounce buffer in zone_dma on mapping failure. */
+ if (b43legacy_dma_mapping_error(ring, meta->dmaaddr, skb->len, 1)) {
+ bounce_skb = alloc_skb(skb->len, GFP_ATOMIC | GFP_DMA);
+ if (!bounce_skb) {
+ ring->current_slot = old_top_slot;
+ ring->used_slots = old_used_slots;
+ err = -ENOMEM;
+ goto out_unmap_hdr;
+ }
+
+ memcpy(skb_put(bounce_skb, skb->len), skb->data, skb->len);
+ memcpy(bounce_skb->cb, skb->cb, sizeof(skb->cb));
+ bounce_skb->dev = skb->dev;
+ skb_set_queue_mapping(bounce_skb, skb_get_queue_mapping(skb));
+ info = IEEE80211_SKB_CB(bounce_skb);
+
+ dev_kfree_skb_any(skb);
+ skb = bounce_skb;
+ *in_skb = bounce_skb;
+ meta->skb = skb;
+ meta->dmaaddr = map_descbuffer(ring, skb->data, skb->len, 1);
+ if (b43legacy_dma_mapping_error(ring, meta->dmaaddr, skb->len, 1)) {
+ ring->current_slot = old_top_slot;
+ ring->used_slots = old_used_slots;
+ err = -EIO;
+ goto out_free_bounce;
+ }
+ }
+
+ op32_fill_descriptor(ring, desc, meta->dmaaddr,
+ skb->len, 0, 1, 1);
+
+ wmb(); /* previous stuff MUST be done */
+ /* Now transfer the whole frame. */
+ op32_poke_tx(ring, next_slot(ring, slot));
+ return 0;
+
+out_free_bounce:
+ dev_kfree_skb_any(skb);
+out_unmap_hdr:
+ unmap_descbuffer(ring, meta_hdr->dmaaddr,
+ sizeof(struct b43legacy_txhdr_fw3), 1);
+ return err;
+}
+
+static inline
+int should_inject_overflow(struct b43legacy_dmaring *ring)
+{
+#ifdef CONFIG_B43LEGACY_DEBUG
+ if (unlikely(b43legacy_debug(ring->dev,
+ B43legacy_DBG_DMAOVERFLOW))) {
+ /* Check if we should inject another ringbuffer overflow
+ * to test handling of this situation in the stack. */
+ unsigned long next_overflow;
+
+ next_overflow = ring->last_injected_overflow + HZ;
+ if (time_after(jiffies, next_overflow)) {
+ ring->last_injected_overflow = jiffies;
+ b43legacydbg(ring->dev->wl,
+ "Injecting TX ring overflow on "
+ "DMA controller %d\n", ring->index);
+ return 1;
+ }
+ }
+#endif /* CONFIG_B43LEGACY_DEBUG */
+ return 0;
+}
+
+int b43legacy_dma_tx(struct b43legacy_wldev *dev,
+ struct sk_buff *skb)
+{
+ struct b43legacy_dmaring *ring;
+ int err = 0;
+
+ ring = priority_to_txring(dev, skb_get_queue_mapping(skb));
+ B43legacy_WARN_ON(!ring->tx);
+
+ if (unlikely(ring->stopped)) {
+ /* We get here only because of a bug in mac80211.
+ * Because of a race, one packet may be queued after
+ * the queue is stopped, thus we got called when we shouldn't.
+ * For now, just refuse the transmit. */
+ if (b43legacy_debug(dev, B43legacy_DBG_DMAVERBOSE))
+ b43legacyerr(dev->wl, "Packet after queue stopped\n");
+ return -ENOSPC;
+ }
+
+ if (unlikely(WARN_ON(free_slots(ring) < SLOTS_PER_PACKET))) {
+ /* If we get here, we have a real error with the queue
+ * full, but queues not stopped. */
+ b43legacyerr(dev->wl, "DMA queue overflow\n");
+ return -ENOSPC;
+ }
+
+ /* dma_tx_fragment might reallocate the skb, so invalidate pointers pointing
+ * into the skb data or cb now. */
+ err = dma_tx_fragment(ring, &skb);
+ if (unlikely(err == -ENOKEY)) {
+ /* Drop this packet, as we don't have the encryption key
+ * anymore and must not transmit it unencrypted. */
+ dev_kfree_skb_any(skb);
+ return 0;
+ }
+ if (unlikely(err)) {
+ b43legacyerr(dev->wl, "DMA tx mapping failure\n");
+ return err;
+ }
+ if ((free_slots(ring) < SLOTS_PER_PACKET) ||
+ should_inject_overflow(ring)) {
+ /* This TX ring is full. */
+ unsigned int skb_mapping = skb_get_queue_mapping(skb);
+ ieee80211_stop_queue(dev->wl->hw, skb_mapping);
+ dev->wl->tx_queue_stopped[skb_mapping] = 1;
+ ring->stopped = true;
+ if (b43legacy_debug(dev, B43legacy_DBG_DMAVERBOSE))
+ b43legacydbg(dev->wl, "Stopped TX ring %d\n",
+ ring->index);
+ }
+ return err;
+}
+
+void b43legacy_dma_handle_txstatus(struct b43legacy_wldev *dev,
+ const struct b43legacy_txstatus *status)
+{
+ struct b43legacy_dmaring *ring;
+ struct b43legacy_dmadesc_meta *meta;
+ int retry_limit;
+ int slot;
+ int firstused;
+
+ ring = parse_cookie(dev, status->cookie, &slot);
+ if (unlikely(!ring))
+ return;
+ B43legacy_WARN_ON(!ring->tx);
+
+ /* Sanity check: TX packets are processed in-order on one ring.
+ * Check if the slot deduced from the cookie really is the first
+ * used slot. */
+ firstused = ring->current_slot - ring->used_slots + 1;
+ if (firstused < 0)
+ firstused = ring->nr_slots + firstused;
+ if (unlikely(slot != firstused)) {
+ /* This possibly is a firmware bug and will result in
+ * malfunction, memory leaks and/or stall of DMA functionality.
+ */
+ b43legacydbg(dev->wl, "Out of order TX status report on DMA "
+ "ring %d. Expected %d, but got %d\n",
+ ring->index, firstused, slot);
+ return;
+ }
+
+ while (1) {
+ B43legacy_WARN_ON(!(slot >= 0 && slot < ring->nr_slots));
+ op32_idx2desc(ring, slot, &meta);
+
+ if (meta->skb)
+ unmap_descbuffer(ring, meta->dmaaddr,
+ meta->skb->len, 1);
+ else
+ unmap_descbuffer(ring, meta->dmaaddr,
+ sizeof(struct b43legacy_txhdr_fw3),
+ 1);
+
+ if (meta->is_last_fragment) {
+ struct ieee80211_tx_info *info;
+ BUG_ON(!meta->skb);
+ info = IEEE80211_SKB_CB(meta->skb);
+
+ /* preserve the confiured retry limit before clearing the status
+ * The xmit function has overwritten the rc's value with the actual
+ * retry limit done by the hardware */
+ retry_limit = info->status.rates[0].count;
+ ieee80211_tx_info_clear_status(info);
+
+ if (status->acked)
+ info->flags |= IEEE80211_TX_STAT_ACK;
+
+ if (status->rts_count > dev->wl->hw->conf.short_frame_max_tx_count) {
+ /*
+ * If the short retries (RTS, not data frame) have exceeded
+ * the limit, the hw will not have tried the selected rate,
+ * but will have used the fallback rate instead.
+ * Don't let the rate control count attempts for the selected
+ * rate in this case, otherwise the statistics will be off.
+ */
+ info->status.rates[0].count = 0;
+ info->status.rates[1].count = status->frame_count;
+ } else {
+ if (status->frame_count > retry_limit) {
+ info->status.rates[0].count = retry_limit;
+ info->status.rates[1].count = status->frame_count -
+ retry_limit;
+
+ } else {
+ info->status.rates[0].count = status->frame_count;
+ info->status.rates[1].idx = -1;
+ }
+ }
+
+ /* Call back to inform the ieee80211 subsystem about the
+ * status of the transmission.
+ * Some fields of txstat are already filled in dma_tx().
+ */
+ ieee80211_tx_status_irqsafe(dev->wl->hw, meta->skb);
+ /* skb is freed by ieee80211_tx_status_irqsafe() */
+ meta->skb = NULL;
+ } else {
+ /* No need to call free_descriptor_buffer here, as
+ * this is only the txhdr, which is not allocated.
+ */
+ B43legacy_WARN_ON(meta->skb != NULL);
+ }
+
+ /* Everything unmapped and free'd. So it's not used anymore. */
+ ring->used_slots--;
+
+ if (meta->is_last_fragment)
+ break;
+ slot = next_slot(ring, slot);
+ }
+ dev->stats.last_tx = jiffies;
+ if (ring->stopped) {
+ B43legacy_WARN_ON(free_slots(ring) < SLOTS_PER_PACKET);
+ ring->stopped = false;
+ }
+
+ if (dev->wl->tx_queue_stopped[ring->queue_prio]) {
+ dev->wl->tx_queue_stopped[ring->queue_prio] = 0;
+ } else {
+ /* If the driver queue is running wake the corresponding
+ * mac80211 queue. */
+ ieee80211_wake_queue(dev->wl->hw, ring->queue_prio);
+ if (b43legacy_debug(dev, B43legacy_DBG_DMAVERBOSE))
+ b43legacydbg(dev->wl, "Woke up TX ring %d\n",
+ ring->index);
+ }
+ /* Add work to the queue. */
+ ieee80211_queue_work(dev->wl->hw, &dev->wl->tx_work);
+}
+
+static void dma_rx(struct b43legacy_dmaring *ring,
+ int *slot)
+{
+ struct b43legacy_dmadesc32 *desc;
+ struct b43legacy_dmadesc_meta *meta;
+ struct b43legacy_rxhdr_fw3 *rxhdr;
+ struct sk_buff *skb;
+ u16 len;
+ int err;
+ dma_addr_t dmaaddr;
+
+ desc = op32_idx2desc(ring, *slot, &meta);
+
+ sync_descbuffer_for_cpu(ring, meta->dmaaddr, ring->rx_buffersize);
+ skb = meta->skb;
+
+ if (ring->index == 3) {
+ /* We received an xmit status. */
+ struct b43legacy_hwtxstatus *hw =
+ (struct b43legacy_hwtxstatus *)skb->data;
+ int i = 0;
+
+ while (hw->cookie == 0) {
+ if (i > 100)
+ break;
+ i++;
+ udelay(2);
+ barrier();
+ }
+ b43legacy_handle_hwtxstatus(ring->dev, hw);
+ /* recycle the descriptor buffer. */
+ sync_descbuffer_for_device(ring, meta->dmaaddr,
+ ring->rx_buffersize);
+
+ return;
+ }
+ rxhdr = (struct b43legacy_rxhdr_fw3 *)skb->data;
+ len = le16_to_cpu(rxhdr->frame_len);
+ if (len == 0) {
+ int i = 0;
+
+ do {
+ udelay(2);
+ barrier();
+ len = le16_to_cpu(rxhdr->frame_len);
+ } while (len == 0 && i++ < 5);
+ if (unlikely(len == 0)) {
+ /* recycle the descriptor buffer. */
+ sync_descbuffer_for_device(ring, meta->dmaaddr,
+ ring->rx_buffersize);
+ goto drop;
+ }
+ }
+ if (unlikely(len > ring->rx_buffersize)) {
+ /* The data did not fit into one descriptor buffer
+ * and is split over multiple buffers.
+ * This should never happen, as we try to allocate buffers
+ * big enough. So simply ignore this packet.
+ */
+ int cnt = 0;
+ s32 tmp = len;
+
+ while (1) {
+ desc = op32_idx2desc(ring, *slot, &meta);
+ /* recycle the descriptor buffer. */
+ sync_descbuffer_for_device(ring, meta->dmaaddr,
+ ring->rx_buffersize);
+ *slot = next_slot(ring, *slot);
+ cnt++;
+ tmp -= ring->rx_buffersize;
+ if (tmp <= 0)
+ break;
+ }
+ b43legacyerr(ring->dev->wl, "DMA RX buffer too small "
+ "(len: %u, buffer: %u, nr-dropped: %d)\n",
+ len, ring->rx_buffersize, cnt);
+ goto drop;
+ }
+
+ dmaaddr = meta->dmaaddr;
+ err = setup_rx_descbuffer(ring, desc, meta, GFP_ATOMIC);
+ if (unlikely(err)) {
+ b43legacydbg(ring->dev->wl, "DMA RX: setup_rx_descbuffer()"
+ " failed\n");
+ sync_descbuffer_for_device(ring, dmaaddr,
+ ring->rx_buffersize);
+ goto drop;
+ }
+
+ unmap_descbuffer(ring, dmaaddr, ring->rx_buffersize, 0);
+ skb_put(skb, len + ring->frameoffset);
+ skb_pull(skb, ring->frameoffset);
+
+ b43legacy_rx(ring->dev, skb, rxhdr);
+drop:
+ return;
+}
+
+void b43legacy_dma_rx(struct b43legacy_dmaring *ring)
+{
+ int slot;
+ int current_slot;
+ int used_slots = 0;
+
+ B43legacy_WARN_ON(ring->tx);
+ current_slot = op32_get_current_rxslot(ring);
+ B43legacy_WARN_ON(!(current_slot >= 0 && current_slot <
+ ring->nr_slots));
+
+ slot = ring->current_slot;
+ for (; slot != current_slot; slot = next_slot(ring, slot)) {
+ dma_rx(ring, &slot);
+ update_max_used_slots(ring, ++used_slots);
+ }
+ op32_set_current_rxslot(ring, slot);
+ ring->current_slot = slot;
+}
+
+static void b43legacy_dma_tx_suspend_ring(struct b43legacy_dmaring *ring)
+{
+ B43legacy_WARN_ON(!ring->tx);
+ op32_tx_suspend(ring);
+}
+
+static void b43legacy_dma_tx_resume_ring(struct b43legacy_dmaring *ring)
+{
+ B43legacy_WARN_ON(!ring->tx);
+ op32_tx_resume(ring);
+}
+
+void b43legacy_dma_tx_suspend(struct b43legacy_wldev *dev)
+{
+ b43legacy_power_saving_ctl_bits(dev, -1, 1);
+ b43legacy_dma_tx_suspend_ring(dev->dma.tx_ring0);
+ b43legacy_dma_tx_suspend_ring(dev->dma.tx_ring1);
+ b43legacy_dma_tx_suspend_ring(dev->dma.tx_ring2);
+ b43legacy_dma_tx_suspend_ring(dev->dma.tx_ring3);
+ b43legacy_dma_tx_suspend_ring(dev->dma.tx_ring4);
+ b43legacy_dma_tx_suspend_ring(dev->dma.tx_ring5);
+}
+
+void b43legacy_dma_tx_resume(struct b43legacy_wldev *dev)
+{
+ b43legacy_dma_tx_resume_ring(dev->dma.tx_ring5);
+ b43legacy_dma_tx_resume_ring(dev->dma.tx_ring4);
+ b43legacy_dma_tx_resume_ring(dev->dma.tx_ring3);
+ b43legacy_dma_tx_resume_ring(dev->dma.tx_ring2);
+ b43legacy_dma_tx_resume_ring(dev->dma.tx_ring1);
+ b43legacy_dma_tx_resume_ring(dev->dma.tx_ring0);
+ b43legacy_power_saving_ctl_bits(dev, -1, -1);
+}
--- /dev/null
+#ifndef B43legacy_DMA_H_
+#define B43legacy_DMA_H_
+
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/workqueue.h>
+#include <linux/linkage.h>
+#include <linux/atomic.h>
+
+#include "b43legacy.h"
+
+
+/* DMA-Interrupt reasons. */
+#define B43legacy_DMAIRQ_FATALMASK ((1 << 10) | (1 << 11) | (1 << 12) \
+ | (1 << 14) | (1 << 15))
+#define B43legacy_DMAIRQ_NONFATALMASK (1 << 13)
+#define B43legacy_DMAIRQ_RX_DONE (1 << 16)
+
+
+/*** 32-bit DMA Engine. ***/
+
+/* 32-bit DMA controller registers. */
+#define B43legacy_DMA32_TXCTL 0x00
+#define B43legacy_DMA32_TXENABLE 0x00000001
+#define B43legacy_DMA32_TXSUSPEND 0x00000002
+#define B43legacy_DMA32_TXLOOPBACK 0x00000004
+#define B43legacy_DMA32_TXFLUSH 0x00000010
+#define B43legacy_DMA32_TXADDREXT_MASK 0x00030000
+#define B43legacy_DMA32_TXADDREXT_SHIFT 16
+#define B43legacy_DMA32_TXRING 0x04
+#define B43legacy_DMA32_TXINDEX 0x08
+#define B43legacy_DMA32_TXSTATUS 0x0C
+#define B43legacy_DMA32_TXDPTR 0x00000FFF
+#define B43legacy_DMA32_TXSTATE 0x0000F000
+#define B43legacy_DMA32_TXSTAT_DISABLED 0x00000000
+#define B43legacy_DMA32_TXSTAT_ACTIVE 0x00001000
+#define B43legacy_DMA32_TXSTAT_IDLEWAIT 0x00002000
+#define B43legacy_DMA32_TXSTAT_STOPPED 0x00003000
+#define B43legacy_DMA32_TXSTAT_SUSP 0x00004000
+#define B43legacy_DMA32_TXERROR 0x000F0000
+#define B43legacy_DMA32_TXERR_NOERR 0x00000000
+#define B43legacy_DMA32_TXERR_PROT 0x00010000
+#define B43legacy_DMA32_TXERR_UNDERRUN 0x00020000
+#define B43legacy_DMA32_TXERR_BUFREAD 0x00030000
+#define B43legacy_DMA32_TXERR_DESCREAD 0x00040000
+#define B43legacy_DMA32_TXACTIVE 0xFFF00000
+#define B43legacy_DMA32_RXCTL 0x10
+#define B43legacy_DMA32_RXENABLE 0x00000001
+#define B43legacy_DMA32_RXFROFF_MASK 0x000000FE
+#define B43legacy_DMA32_RXFROFF_SHIFT 1
+#define B43legacy_DMA32_RXDIRECTFIFO 0x00000100
+#define B43legacy_DMA32_RXADDREXT_MASK 0x00030000
+#define B43legacy_DMA32_RXADDREXT_SHIFT 16
+#define B43legacy_DMA32_RXRING 0x14
+#define B43legacy_DMA32_RXINDEX 0x18
+#define B43legacy_DMA32_RXSTATUS 0x1C
+#define B43legacy_DMA32_RXDPTR 0x00000FFF
+#define B43legacy_DMA32_RXSTATE 0x0000F000
+#define B43legacy_DMA32_RXSTAT_DISABLED 0x00000000
+#define B43legacy_DMA32_RXSTAT_ACTIVE 0x00001000
+#define B43legacy_DMA32_RXSTAT_IDLEWAIT 0x00002000
+#define B43legacy_DMA32_RXSTAT_STOPPED 0x00003000
+#define B43legacy_DMA32_RXERROR 0x000F0000
+#define B43legacy_DMA32_RXERR_NOERR 0x00000000
+#define B43legacy_DMA32_RXERR_PROT 0x00010000
+#define B43legacy_DMA32_RXERR_OVERFLOW 0x00020000
+#define B43legacy_DMA32_RXERR_BUFWRITE 0x00030000
+#define B43legacy_DMA32_RXERR_DESCREAD 0x00040000
+#define B43legacy_DMA32_RXACTIVE 0xFFF00000
+
+/* 32-bit DMA descriptor. */
+struct b43legacy_dmadesc32 {
+ __le32 control;
+ __le32 address;
+} __packed;
+#define B43legacy_DMA32_DCTL_BYTECNT 0x00001FFF
+#define B43legacy_DMA32_DCTL_ADDREXT_MASK 0x00030000
+#define B43legacy_DMA32_DCTL_ADDREXT_SHIFT 16
+#define B43legacy_DMA32_DCTL_DTABLEEND 0x10000000
+#define B43legacy_DMA32_DCTL_IRQ 0x20000000
+#define B43legacy_DMA32_DCTL_FRAMEEND 0x40000000
+#define B43legacy_DMA32_DCTL_FRAMESTART 0x80000000
+
+
+/* Misc DMA constants */
+#define B43legacy_DMA_RINGMEMSIZE PAGE_SIZE
+#define B43legacy_DMA0_RX_FRAMEOFFSET 30
+#define B43legacy_DMA3_RX_FRAMEOFFSET 0
+
+
+/* DMA engine tuning knobs */
+#define B43legacy_TXRING_SLOTS 128
+#define B43legacy_RXRING_SLOTS 64
+#define B43legacy_DMA0_RX_BUFFERSIZE (2304 + 100)
+#define B43legacy_DMA3_RX_BUFFERSIZE 16
+
+
+
+#ifdef CONFIG_B43LEGACY_DMA
+
+
+struct sk_buff;
+struct b43legacy_private;
+struct b43legacy_txstatus;
+
+
+struct b43legacy_dmadesc_meta {
+ /* The kernel DMA-able buffer. */
+ struct sk_buff *skb;
+ /* DMA base bus-address of the descriptor buffer. */
+ dma_addr_t dmaaddr;
+ /* ieee80211 TX status. Only used once per 802.11 frag. */
+ bool is_last_fragment;
+};
+
+enum b43legacy_dmatype {
+ B43legacy_DMA_30BIT = 30,
+ B43legacy_DMA_32BIT = 32,
+};
+
+struct b43legacy_dmaring {
+ /* Kernel virtual base address of the ring memory. */
+ void *descbase;
+ /* Meta data about all descriptors. */
+ struct b43legacy_dmadesc_meta *meta;
+ /* Cache of TX headers for each slot.
+ * This is to avoid an allocation on each TX.
+ * This is NULL for an RX ring.
+ */
+ u8 *txhdr_cache;
+ /* (Unadjusted) DMA base bus-address of the ring memory. */
+ dma_addr_t dmabase;
+ /* Number of descriptor slots in the ring. */
+ int nr_slots;
+ /* Number of used descriptor slots. */
+ int used_slots;
+ /* Currently used slot in the ring. */
+ int current_slot;
+ /* Frameoffset in octets. */
+ u32 frameoffset;
+ /* Descriptor buffer size. */
+ u16 rx_buffersize;
+ /* The MMIO base register of the DMA controller. */
+ u16 mmio_base;
+ /* DMA controller index number (0-5). */
+ int index;
+ /* Boolean. Is this a TX ring? */
+ bool tx;
+ /* The type of DMA engine used. */
+ enum b43legacy_dmatype type;
+ /* Boolean. Is this ring stopped at ieee80211 level? */
+ bool stopped;
+ /* The QOS priority assigned to this ring. Only used for TX rings.
+ * This is the mac80211 "queue" value. */
+ u8 queue_prio;
+ struct b43legacy_wldev *dev;
+#ifdef CONFIG_B43LEGACY_DEBUG
+ /* Maximum number of used slots. */
+ int max_used_slots;
+ /* Last time we injected a ring overflow. */
+ unsigned long last_injected_overflow;
+#endif /* CONFIG_B43LEGACY_DEBUG*/
+};
+
+
+static inline
+u32 b43legacy_dma_read(struct b43legacy_dmaring *ring,
+ u16 offset)
+{
+ return b43legacy_read32(ring->dev, ring->mmio_base + offset);
+}
+
+static inline
+void b43legacy_dma_write(struct b43legacy_dmaring *ring,
+ u16 offset, u32 value)
+{
+ b43legacy_write32(ring->dev, ring->mmio_base + offset, value);
+}
+
+
+int b43legacy_dma_init(struct b43legacy_wldev *dev);
+void b43legacy_dma_free(struct b43legacy_wldev *dev);
+
+void b43legacy_dma_tx_suspend(struct b43legacy_wldev *dev);
+void b43legacy_dma_tx_resume(struct b43legacy_wldev *dev);
+
+int b43legacy_dma_tx(struct b43legacy_wldev *dev,
+ struct sk_buff *skb);
+void b43legacy_dma_handle_txstatus(struct b43legacy_wldev *dev,
+ const struct b43legacy_txstatus *status);
+
+void b43legacy_dma_rx(struct b43legacy_dmaring *ring);
+
+#else /* CONFIG_B43LEGACY_DMA */
+
+
+static inline
+int b43legacy_dma_init(struct b43legacy_wldev *dev)
+{
+ return 0;
+}
+static inline
+void b43legacy_dma_free(struct b43legacy_wldev *dev)
+{
+}
+static inline
+int b43legacy_dma_tx(struct b43legacy_wldev *dev,
+ struct sk_buff *skb)
+{
+ return 0;
+}
+static inline
+void b43legacy_dma_handle_txstatus(struct b43legacy_wldev *dev,
+ const struct b43legacy_txstatus *status)
+{
+}
+static inline
+void b43legacy_dma_rx(struct b43legacy_dmaring *ring)
+{
+}
+static inline
+void b43legacy_dma_tx_suspend(struct b43legacy_wldev *dev)
+{
+}
+static inline
+void b43legacy_dma_tx_resume(struct b43legacy_wldev *dev)
+{
+}
+
+#endif /* CONFIG_B43LEGACY_DMA */
+#endif /* B43legacy_DMA_H_ */
--- /dev/null
+/*
+
+ Broadcom B43legacy wireless driver
+
+ Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
+ Stefano Brivio <stefano.brivio@polimi.it>
+ Michael Buesch <m@bues.ch>
+ Danny van Dyk <kugelfang@gentoo.org>
+ Andreas Jaggi <andreas.jaggi@waterwave.ch>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+
+*/
+
+#include "b43legacy.h"
+#include "ilt.h"
+#include "phy.h"
+
+
+/**** Initial Internal Lookup Tables ****/
+
+const u32 b43legacy_ilt_rotor[B43legacy_ILT_ROTOR_SIZE] = {
+ 0xFEB93FFD, 0xFEC63FFD, /* 0 */
+ 0xFED23FFD, 0xFEDF3FFD,
+ 0xFEEC3FFE, 0xFEF83FFE,
+ 0xFF053FFE, 0xFF113FFE,
+ 0xFF1E3FFE, 0xFF2A3FFF, /* 8 */
+ 0xFF373FFF, 0xFF443FFF,
+ 0xFF503FFF, 0xFF5D3FFF,
+ 0xFF693FFF, 0xFF763FFF,
+ 0xFF824000, 0xFF8F4000, /* 16 */
+ 0xFF9B4000, 0xFFA84000,
+ 0xFFB54000, 0xFFC14000,
+ 0xFFCE4000, 0xFFDA4000,
+ 0xFFE74000, 0xFFF34000, /* 24 */
+ 0x00004000, 0x000D4000,
+ 0x00194000, 0x00264000,
+ 0x00324000, 0x003F4000,
+ 0x004B4000, 0x00584000, /* 32 */
+ 0x00654000, 0x00714000,
+ 0x007E4000, 0x008A3FFF,
+ 0x00973FFF, 0x00A33FFF,
+ 0x00B03FFF, 0x00BC3FFF, /* 40 */
+ 0x00C93FFF, 0x00D63FFF,
+ 0x00E23FFE, 0x00EF3FFE,
+ 0x00FB3FFE, 0x01083FFE,
+ 0x01143FFE, 0x01213FFD, /* 48 */
+ 0x012E3FFD, 0x013A3FFD,
+ 0x01473FFD,
+};
+
+const u32 b43legacy_ilt_retard[B43legacy_ILT_RETARD_SIZE] = {
+ 0xDB93CB87, 0xD666CF64, /* 0 */
+ 0xD1FDD358, 0xCDA6D826,
+ 0xCA38DD9F, 0xC729E2B4,
+ 0xC469E88E, 0xC26AEE2B,
+ 0xC0DEF46C, 0xC073FA62, /* 8 */
+ 0xC01D00D5, 0xC0760743,
+ 0xC1560D1E, 0xC2E51369,
+ 0xC4ED18FF, 0xC7AC1ED7,
+ 0xCB2823B2, 0xCEFA28D9, /* 16 */
+ 0xD2F62D3F, 0xD7BB3197,
+ 0xDCE53568, 0xE1FE3875,
+ 0xE7D13B35, 0xED663D35,
+ 0xF39B3EC4, 0xF98E3FA7, /* 24 */
+ 0x00004000, 0x06723FA7,
+ 0x0C653EC4, 0x129A3D35,
+ 0x182F3B35, 0x1E023875,
+ 0x231B3568, 0x28453197, /* 32 */
+ 0x2D0A2D3F, 0x310628D9,
+ 0x34D823B2, 0x38541ED7,
+ 0x3B1318FF, 0x3D1B1369,
+ 0x3EAA0D1E, 0x3F8A0743, /* 40 */
+ 0x3FE300D5, 0x3F8DFA62,
+ 0x3F22F46C, 0x3D96EE2B,
+ 0x3B97E88E, 0x38D7E2B4,
+ 0x35C8DD9F, 0x325AD826, /* 48 */
+ 0x2E03D358, 0x299ACF64,
+ 0x246DCB87,
+};
+
+const u16 b43legacy_ilt_finefreqa[B43legacy_ILT_FINEFREQA_SIZE] = {
+ 0x0082, 0x0082, 0x0102, 0x0182, /* 0 */
+ 0x0202, 0x0282, 0x0302, 0x0382,
+ 0x0402, 0x0482, 0x0502, 0x0582,
+ 0x05E2, 0x0662, 0x06E2, 0x0762,
+ 0x07E2, 0x0842, 0x08C2, 0x0942, /* 16 */
+ 0x09C2, 0x0A22, 0x0AA2, 0x0B02,
+ 0x0B82, 0x0BE2, 0x0C62, 0x0CC2,
+ 0x0D42, 0x0DA2, 0x0E02, 0x0E62,
+ 0x0EE2, 0x0F42, 0x0FA2, 0x1002, /* 32 */
+ 0x1062, 0x10C2, 0x1122, 0x1182,
+ 0x11E2, 0x1242, 0x12A2, 0x12E2,
+ 0x1342, 0x13A2, 0x1402, 0x1442,
+ 0x14A2, 0x14E2, 0x1542, 0x1582, /* 48 */
+ 0x15E2, 0x1622, 0x1662, 0x16C1,
+ 0x1701, 0x1741, 0x1781, 0x17E1,
+ 0x1821, 0x1861, 0x18A1, 0x18E1,
+ 0x1921, 0x1961, 0x19A1, 0x19E1, /* 64 */
+ 0x1A21, 0x1A61, 0x1AA1, 0x1AC1,
+ 0x1B01, 0x1B41, 0x1B81, 0x1BA1,
+ 0x1BE1, 0x1C21, 0x1C41, 0x1C81,
+ 0x1CA1, 0x1CE1, 0x1D01, 0x1D41, /* 80 */
+ 0x1D61, 0x1DA1, 0x1DC1, 0x1E01,
+ 0x1E21, 0x1E61, 0x1E81, 0x1EA1,
+ 0x1EE1, 0x1F01, 0x1F21, 0x1F41,
+ 0x1F81, 0x1FA1, 0x1FC1, 0x1FE1, /* 96 */
+ 0x2001, 0x2041, 0x2061, 0x2081,
+ 0x20A1, 0x20C1, 0x20E1, 0x2101,
+ 0x2121, 0x2141, 0x2161, 0x2181,
+ 0x21A1, 0x21C1, 0x21E1, 0x2201, /* 112 */
+ 0x2221, 0x2241, 0x2261, 0x2281,
+ 0x22A1, 0x22C1, 0x22C1, 0x22E1,
+ 0x2301, 0x2321, 0x2341, 0x2361,
+ 0x2361, 0x2381, 0x23A1, 0x23C1, /* 128 */
+ 0x23E1, 0x23E1, 0x2401, 0x2421,
+ 0x2441, 0x2441, 0x2461, 0x2481,
+ 0x2481, 0x24A1, 0x24C1, 0x24C1,
+ 0x24E1, 0x2501, 0x2501, 0x2521, /* 144 */
+ 0x2541, 0x2541, 0x2561, 0x2561,
+ 0x2581, 0x25A1, 0x25A1, 0x25C1,
+ 0x25C1, 0x25E1, 0x2601, 0x2601,
+ 0x2621, 0x2621, 0x2641, 0x2641, /* 160 */
+ 0x2661, 0x2661, 0x2681, 0x2681,
+ 0x26A1, 0x26A1, 0x26C1, 0x26C1,
+ 0x26E1, 0x26E1, 0x2701, 0x2701,
+ 0x2721, 0x2721, 0x2740, 0x2740, /* 176 */
+ 0x2760, 0x2760, 0x2780, 0x2780,
+ 0x2780, 0x27A0, 0x27A0, 0x27C0,
+ 0x27C0, 0x27E0, 0x27E0, 0x27E0,
+ 0x2800, 0x2800, 0x2820, 0x2820, /* 192 */
+ 0x2820, 0x2840, 0x2840, 0x2840,
+ 0x2860, 0x2860, 0x2880, 0x2880,
+ 0x2880, 0x28A0, 0x28A0, 0x28A0,
+ 0x28C0, 0x28C0, 0x28C0, 0x28E0, /* 208 */
+ 0x28E0, 0x28E0, 0x2900, 0x2900,
+ 0x2900, 0x2920, 0x2920, 0x2920,
+ 0x2940, 0x2940, 0x2940, 0x2960,
+ 0x2960, 0x2960, 0x2960, 0x2980, /* 224 */
+ 0x2980, 0x2980, 0x29A0, 0x29A0,
+ 0x29A0, 0x29A0, 0x29C0, 0x29C0,
+ 0x29C0, 0x29E0, 0x29E0, 0x29E0,
+ 0x29E0, 0x2A00, 0x2A00, 0x2A00, /* 240 */
+ 0x2A00, 0x2A20, 0x2A20, 0x2A20,
+ 0x2A20, 0x2A40, 0x2A40, 0x2A40,
+ 0x2A40, 0x2A60, 0x2A60, 0x2A60,
+};
+
+const u16 b43legacy_ilt_finefreqg[B43legacy_ILT_FINEFREQG_SIZE] = {
+ 0x0089, 0x02E9, 0x0409, 0x04E9, /* 0 */
+ 0x05A9, 0x0669, 0x0709, 0x0789,
+ 0x0829, 0x08A9, 0x0929, 0x0989,
+ 0x0A09, 0x0A69, 0x0AC9, 0x0B29,
+ 0x0BA9, 0x0BE9, 0x0C49, 0x0CA9, /* 16 */
+ 0x0D09, 0x0D69, 0x0DA9, 0x0E09,
+ 0x0E69, 0x0EA9, 0x0F09, 0x0F49,
+ 0x0FA9, 0x0FE9, 0x1029, 0x1089,
+ 0x10C9, 0x1109, 0x1169, 0x11A9, /* 32 */
+ 0x11E9, 0x1229, 0x1289, 0x12C9,
+ 0x1309, 0x1349, 0x1389, 0x13C9,
+ 0x1409, 0x1449, 0x14A9, 0x14E9,
+ 0x1529, 0x1569, 0x15A9, 0x15E9, /* 48 */
+ 0x1629, 0x1669, 0x16A9, 0x16E8,
+ 0x1728, 0x1768, 0x17A8, 0x17E8,
+ 0x1828, 0x1868, 0x18A8, 0x18E8,
+ 0x1928, 0x1968, 0x19A8, 0x19E8, /* 64 */
+ 0x1A28, 0x1A68, 0x1AA8, 0x1AE8,
+ 0x1B28, 0x1B68, 0x1BA8, 0x1BE8,
+ 0x1C28, 0x1C68, 0x1CA8, 0x1CE8,
+ 0x1D28, 0x1D68, 0x1DC8, 0x1E08, /* 80 */
+ 0x1E48, 0x1E88, 0x1EC8, 0x1F08,
+ 0x1F48, 0x1F88, 0x1FE8, 0x2028,
+ 0x2068, 0x20A8, 0x2108, 0x2148,
+ 0x2188, 0x21C8, 0x2228, 0x2268, /* 96 */
+ 0x22C8, 0x2308, 0x2348, 0x23A8,
+ 0x23E8, 0x2448, 0x24A8, 0x24E8,
+ 0x2548, 0x25A8, 0x2608, 0x2668,
+ 0x26C8, 0x2728, 0x2787, 0x27E7, /* 112 */
+ 0x2847, 0x28C7, 0x2947, 0x29A7,
+ 0x2A27, 0x2AC7, 0x2B47, 0x2BE7,
+ 0x2CA7, 0x2D67, 0x2E47, 0x2F67,
+ 0x3247, 0x3526, 0x3646, 0x3726, /* 128 */
+ 0x3806, 0x38A6, 0x3946, 0x39E6,
+ 0x3A66, 0x3AE6, 0x3B66, 0x3BC6,
+ 0x3C45, 0x3CA5, 0x3D05, 0x3D85,
+ 0x3DE5, 0x3E45, 0x3EA5, 0x3EE5, /* 144 */
+ 0x3F45, 0x3FA5, 0x4005, 0x4045,
+ 0x40A5, 0x40E5, 0x4145, 0x4185,
+ 0x41E5, 0x4225, 0x4265, 0x42C5,
+ 0x4305, 0x4345, 0x43A5, 0x43E5, /* 160 */
+ 0x4424, 0x4464, 0x44C4, 0x4504,
+ 0x4544, 0x4584, 0x45C4, 0x4604,
+ 0x4644, 0x46A4, 0x46E4, 0x4724,
+ 0x4764, 0x47A4, 0x47E4, 0x4824, /* 176 */
+ 0x4864, 0x48A4, 0x48E4, 0x4924,
+ 0x4964, 0x49A4, 0x49E4, 0x4A24,
+ 0x4A64, 0x4AA4, 0x4AE4, 0x4B23,
+ 0x4B63, 0x4BA3, 0x4BE3, 0x4C23, /* 192 */
+ 0x4C63, 0x4CA3, 0x4CE3, 0x4D23,
+ 0x4D63, 0x4DA3, 0x4DE3, 0x4E23,
+ 0x4E63, 0x4EA3, 0x4EE3, 0x4F23,
+ 0x4F63, 0x4FC3, 0x5003, 0x5043, /* 208 */
+ 0x5083, 0x50C3, 0x5103, 0x5143,
+ 0x5183, 0x51E2, 0x5222, 0x5262,
+ 0x52A2, 0x52E2, 0x5342, 0x5382,
+ 0x53C2, 0x5402, 0x5462, 0x54A2, /* 224 */
+ 0x5502, 0x5542, 0x55A2, 0x55E2,
+ 0x5642, 0x5682, 0x56E2, 0x5722,
+ 0x5782, 0x57E1, 0x5841, 0x58A1,
+ 0x5901, 0x5961, 0x59C1, 0x5A21, /* 240 */
+ 0x5AA1, 0x5B01, 0x5B81, 0x5BE1,
+ 0x5C61, 0x5D01, 0x5D80, 0x5E20,
+ 0x5EE0, 0x5FA0, 0x6080, 0x61C0,
+};
+
+const u16 b43legacy_ilt_noisea2[B43legacy_ILT_NOISEA2_SIZE] = {
+ 0x0001, 0x0001, 0x0001, 0xFFFE,
+ 0xFFFE, 0x3FFF, 0x1000, 0x0393,
+};
+
+const u16 b43legacy_ilt_noisea3[B43legacy_ILT_NOISEA3_SIZE] = {
+ 0x4C4C, 0x4C4C, 0x4C4C, 0x2D36,
+ 0x4C4C, 0x4C4C, 0x4C4C, 0x2D36,
+};
+
+const u16 b43legacy_ilt_noiseg1[B43legacy_ILT_NOISEG1_SIZE] = {
+ 0x013C, 0x01F5, 0x031A, 0x0631,
+ 0x0001, 0x0001, 0x0001, 0x0001,
+};
+
+const u16 b43legacy_ilt_noiseg2[B43legacy_ILT_NOISEG2_SIZE] = {
+ 0x5484, 0x3C40, 0x0000, 0x0000,
+ 0x0000, 0x0000, 0x0000, 0x0000,
+};
+
+const u16 b43legacy_ilt_noisescaleg1[B43legacy_ILT_NOISESCALEG_SIZE] = {
+ 0x6C77, 0x5162, 0x3B40, 0x3335, /* 0 */
+ 0x2F2D, 0x2A2A, 0x2527, 0x1F21,
+ 0x1A1D, 0x1719, 0x1616, 0x1414,
+ 0x1414, 0x1400, 0x1414, 0x1614,
+ 0x1716, 0x1A19, 0x1F1D, 0x2521, /* 16 */
+ 0x2A27, 0x2F2A, 0x332D, 0x3B35,
+ 0x5140, 0x6C62, 0x0077,
+};
+
+const u16 b43legacy_ilt_noisescaleg2[B43legacy_ILT_NOISESCALEG_SIZE] = {
+ 0xD8DD, 0xCBD4, 0xBCC0, 0XB6B7, /* 0 */
+ 0xB2B0, 0xADAD, 0xA7A9, 0x9FA1,
+ 0x969B, 0x9195, 0x8F8F, 0x8A8A,
+ 0x8A8A, 0x8A00, 0x8A8A, 0x8F8A,
+ 0x918F, 0x9695, 0x9F9B, 0xA7A1, /* 16 */
+ 0xADA9, 0xB2AD, 0xB6B0, 0xBCB7,
+ 0xCBC0, 0xD8D4, 0x00DD,
+};
+
+const u16 b43legacy_ilt_noisescaleg3[B43legacy_ILT_NOISESCALEG_SIZE] = {
+ 0xA4A4, 0xA4A4, 0xA4A4, 0xA4A4, /* 0 */
+ 0xA4A4, 0xA4A4, 0xA4A4, 0xA4A4,
+ 0xA4A4, 0xA4A4, 0xA4A4, 0xA4A4,
+ 0xA4A4, 0xA400, 0xA4A4, 0xA4A4,
+ 0xA4A4, 0xA4A4, 0xA4A4, 0xA4A4, /* 16 */
+ 0xA4A4, 0xA4A4, 0xA4A4, 0xA4A4,
+ 0xA4A4, 0xA4A4, 0x00A4,
+};
+
+const u16 b43legacy_ilt_sigmasqr1[B43legacy_ILT_SIGMASQR_SIZE] = {
+ 0x007A, 0x0075, 0x0071, 0x006C, /* 0 */
+ 0x0067, 0x0063, 0x005E, 0x0059,
+ 0x0054, 0x0050, 0x004B, 0x0046,
+ 0x0042, 0x003D, 0x003D, 0x003D,
+ 0x003D, 0x003D, 0x003D, 0x003D, /* 16 */
+ 0x003D, 0x003D, 0x003D, 0x003D,
+ 0x003D, 0x003D, 0x0000, 0x003D,
+ 0x003D, 0x003D, 0x003D, 0x003D,
+ 0x003D, 0x003D, 0x003D, 0x003D, /* 32 */
+ 0x003D, 0x003D, 0x003D, 0x003D,
+ 0x0042, 0x0046, 0x004B, 0x0050,
+ 0x0054, 0x0059, 0x005E, 0x0063,
+ 0x0067, 0x006C, 0x0071, 0x0075, /* 48 */
+ 0x007A,
+};
+
+const u16 b43legacy_ilt_sigmasqr2[B43legacy_ILT_SIGMASQR_SIZE] = {
+ 0x00DE, 0x00DC, 0x00DA, 0x00D8, /* 0 */
+ 0x00D6, 0x00D4, 0x00D2, 0x00CF,
+ 0x00CD, 0x00CA, 0x00C7, 0x00C4,
+ 0x00C1, 0x00BE, 0x00BE, 0x00BE,
+ 0x00BE, 0x00BE, 0x00BE, 0x00BE, /* 16 */
+ 0x00BE, 0x00BE, 0x00BE, 0x00BE,
+ 0x00BE, 0x00BE, 0x0000, 0x00BE,
+ 0x00BE, 0x00BE, 0x00BE, 0x00BE,
+ 0x00BE, 0x00BE, 0x00BE, 0x00BE, /* 32 */
+ 0x00BE, 0x00BE, 0x00BE, 0x00BE,
+ 0x00C1, 0x00C4, 0x00C7, 0x00CA,
+ 0x00CD, 0x00CF, 0x00D2, 0x00D4,
+ 0x00D6, 0x00D8, 0x00DA, 0x00DC, /* 48 */
+ 0x00DE,
+};
+
+/**** Helper functions to access the device Internal Lookup Tables ****/
+
+void b43legacy_ilt_write(struct b43legacy_wldev *dev, u16 offset, u16 val)
+{
+ b43legacy_phy_write(dev, B43legacy_PHY_ILT_G_CTRL, offset);
+ mmiowb();
+ b43legacy_phy_write(dev, B43legacy_PHY_ILT_G_DATA1, val);
+}
+
+void b43legacy_ilt_write32(struct b43legacy_wldev *dev, u16 offset, u32 val)
+{
+ b43legacy_phy_write(dev, B43legacy_PHY_ILT_G_CTRL, offset);
+ mmiowb();
+ b43legacy_phy_write(dev, B43legacy_PHY_ILT_G_DATA2,
+ (val & 0xFFFF0000) >> 16);
+ b43legacy_phy_write(dev, B43legacy_PHY_ILT_G_DATA1,
+ val & 0x0000FFFF);
+}
+
+u16 b43legacy_ilt_read(struct b43legacy_wldev *dev, u16 offset)
+{
+ b43legacy_phy_write(dev, B43legacy_PHY_ILT_G_CTRL, offset);
+ return b43legacy_phy_read(dev, B43legacy_PHY_ILT_G_DATA1);
+}
--- /dev/null
+#ifndef B43legacy_ILT_H_
+#define B43legacy_ILT_H_
+
+#define B43legacy_ILT_ROTOR_SIZE 53
+extern const u32 b43legacy_ilt_rotor[B43legacy_ILT_ROTOR_SIZE];
+#define B43legacy_ILT_RETARD_SIZE 53
+extern const u32 b43legacy_ilt_retard[B43legacy_ILT_RETARD_SIZE];
+#define B43legacy_ILT_FINEFREQA_SIZE 256
+extern const u16 b43legacy_ilt_finefreqa[B43legacy_ILT_FINEFREQA_SIZE];
+#define B43legacy_ILT_FINEFREQG_SIZE 256
+extern const u16 b43legacy_ilt_finefreqg[B43legacy_ILT_FINEFREQG_SIZE];
+#define B43legacy_ILT_NOISEA2_SIZE 8
+extern const u16 b43legacy_ilt_noisea2[B43legacy_ILT_NOISEA2_SIZE];
+#define B43legacy_ILT_NOISEA3_SIZE 8
+extern const u16 b43legacy_ilt_noisea3[B43legacy_ILT_NOISEA3_SIZE];
+#define B43legacy_ILT_NOISEG1_SIZE 8
+extern const u16 b43legacy_ilt_noiseg1[B43legacy_ILT_NOISEG1_SIZE];
+#define B43legacy_ILT_NOISEG2_SIZE 8
+extern const u16 b43legacy_ilt_noiseg2[B43legacy_ILT_NOISEG2_SIZE];
+#define B43legacy_ILT_NOISESCALEG_SIZE 27
+extern const u16 b43legacy_ilt_noisescaleg1[B43legacy_ILT_NOISESCALEG_SIZE];
+extern const u16 b43legacy_ilt_noisescaleg2[B43legacy_ILT_NOISESCALEG_SIZE];
+extern const u16 b43legacy_ilt_noisescaleg3[B43legacy_ILT_NOISESCALEG_SIZE];
+#define B43legacy_ILT_SIGMASQR_SIZE 53
+extern const u16 b43legacy_ilt_sigmasqr1[B43legacy_ILT_SIGMASQR_SIZE];
+extern const u16 b43legacy_ilt_sigmasqr2[B43legacy_ILT_SIGMASQR_SIZE];
+
+
+void b43legacy_ilt_write(struct b43legacy_wldev *dev, u16 offset, u16 val);
+void b43legacy_ilt_write32(struct b43legacy_wldev *dev, u16 offset,
+ u32 val);
+u16 b43legacy_ilt_read(struct b43legacy_wldev *dev, u16 offset);
+
+#endif /* B43legacy_ILT_H_ */
--- /dev/null
+/*
+
+ Broadcom B43 wireless driver
+ LED control
+
+ Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
+ Copyright (c) 2005 Stefano Brivio <stefano.brivio@polimi.it>
+ Copyright (c) 2005-2007 Michael Buesch <m@bues.ch>
+ Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org>
+ Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+
+*/
+
+#include "b43legacy.h"
+#include "leds.h"
+#include "rfkill.h"
+
+
+static void b43legacy_led_turn_on(struct b43legacy_wldev *dev, u8 led_index,
+ bool activelow)
+{
+ struct b43legacy_wl *wl = dev->wl;
+ unsigned long flags;
+ u16 ctl;
+
+ spin_lock_irqsave(&wl->leds_lock, flags);
+ ctl = b43legacy_read16(dev, B43legacy_MMIO_GPIO_CONTROL);
+ if (activelow)
+ ctl &= ~(1 << led_index);
+ else
+ ctl |= (1 << led_index);
+ b43legacy_write16(dev, B43legacy_MMIO_GPIO_CONTROL, ctl);
+ spin_unlock_irqrestore(&wl->leds_lock, flags);
+}
+
+static void b43legacy_led_turn_off(struct b43legacy_wldev *dev, u8 led_index,
+ bool activelow)
+{
+ struct b43legacy_wl *wl = dev->wl;
+ unsigned long flags;
+ u16 ctl;
+
+ spin_lock_irqsave(&wl->leds_lock, flags);
+ ctl = b43legacy_read16(dev, B43legacy_MMIO_GPIO_CONTROL);
+ if (activelow)
+ ctl |= (1 << led_index);
+ else
+ ctl &= ~(1 << led_index);
+ b43legacy_write16(dev, B43legacy_MMIO_GPIO_CONTROL, ctl);
+ spin_unlock_irqrestore(&wl->leds_lock, flags);
+}
+
+/* Callback from the LED subsystem. */
+static void b43legacy_led_brightness_set(struct led_classdev *led_dev,
+ enum led_brightness brightness)
+{
+ struct b43legacy_led *led = container_of(led_dev, struct b43legacy_led,
+ led_dev);
+ struct b43legacy_wldev *dev = led->dev;
+ bool radio_enabled;
+
+ /* Checking the radio-enabled status here is slightly racy,
+ * but we want to avoid the locking overhead and we don't care
+ * whether the LED has the wrong state for a second. */
+ radio_enabled = (dev->phy.radio_on && dev->radio_hw_enable);
+
+ if (brightness == LED_OFF || !radio_enabled)
+ b43legacy_led_turn_off(dev, led->index, led->activelow);
+ else
+ b43legacy_led_turn_on(dev, led->index, led->activelow);
+}
+
+static int b43legacy_register_led(struct b43legacy_wldev *dev,
+ struct b43legacy_led *led,
+ const char *name,
+ const char *default_trigger,
+ u8 led_index, bool activelow)
+{
+ int err;
+
+ b43legacy_led_turn_off(dev, led_index, activelow);
+ if (led->dev)
+ return -EEXIST;
+ if (!default_trigger)
+ return -EINVAL;
+ led->dev = dev;
+ led->index = led_index;
+ led->activelow = activelow;
+ strncpy(led->name, name, sizeof(led->name));
+
+ led->led_dev.name = led->name;
+ led->led_dev.default_trigger = default_trigger;
+ led->led_dev.brightness_set = b43legacy_led_brightness_set;
+
+ err = led_classdev_register(dev->dev->dev, &led->led_dev);
+ if (err) {
+ b43legacywarn(dev->wl, "LEDs: Failed to register %s\n", name);
+ led->dev = NULL;
+ return err;
+ }
+ return 0;
+}
+
+static void b43legacy_unregister_led(struct b43legacy_led *led)
+{
+ if (!led->dev)
+ return;
+ led_classdev_unregister(&led->led_dev);
+ b43legacy_led_turn_off(led->dev, led->index, led->activelow);
+ led->dev = NULL;
+}
+
+static void b43legacy_map_led(struct b43legacy_wldev *dev,
+ u8 led_index,
+ enum b43legacy_led_behaviour behaviour,
+ bool activelow)
+{
+ struct ieee80211_hw *hw = dev->wl->hw;
+ char name[B43legacy_LED_MAX_NAME_LEN + 1];
+
+ /* Map the b43 specific LED behaviour value to the
+ * generic LED triggers. */
+ switch (behaviour) {
+ case B43legacy_LED_INACTIVE:
+ break;
+ case B43legacy_LED_OFF:
+ b43legacy_led_turn_off(dev, led_index, activelow);
+ break;
+ case B43legacy_LED_ON:
+ b43legacy_led_turn_on(dev, led_index, activelow);
+ break;
+ case B43legacy_LED_ACTIVITY:
+ case B43legacy_LED_TRANSFER:
+ case B43legacy_LED_APTRANSFER:
+ snprintf(name, sizeof(name),
+ "b43legacy-%s::tx", wiphy_name(hw->wiphy));
+ b43legacy_register_led(dev, &dev->led_tx, name,
+ ieee80211_get_tx_led_name(hw),
+ led_index, activelow);
+ snprintf(name, sizeof(name),
+ "b43legacy-%s::rx", wiphy_name(hw->wiphy));
+ b43legacy_register_led(dev, &dev->led_rx, name,
+ ieee80211_get_rx_led_name(hw),
+ led_index, activelow);
+ break;
+ case B43legacy_LED_RADIO_ALL:
+ case B43legacy_LED_RADIO_A:
+ case B43legacy_LED_RADIO_B:
+ case B43legacy_LED_MODE_BG:
+ snprintf(name, sizeof(name),
+ "b43legacy-%s::radio", wiphy_name(hw->wiphy));
+ b43legacy_register_led(dev, &dev->led_radio, name,
+ ieee80211_get_radio_led_name(hw),
+ led_index, activelow);
+ /* Sync the RF-kill LED state with radio and switch states. */
+ if (dev->phy.radio_on && b43legacy_is_hw_radio_enabled(dev))
+ b43legacy_led_turn_on(dev, led_index, activelow);
+ break;
+ case B43legacy_LED_WEIRD:
+ case B43legacy_LED_ASSOC:
+ snprintf(name, sizeof(name),
+ "b43legacy-%s::assoc", wiphy_name(hw->wiphy));
+ b43legacy_register_led(dev, &dev->led_assoc, name,
+ ieee80211_get_assoc_led_name(hw),
+ led_index, activelow);
+ break;
+ default:
+ b43legacywarn(dev->wl, "LEDs: Unknown behaviour 0x%02X\n",
+ behaviour);
+ break;
+ }
+}
+
+void b43legacy_leds_init(struct b43legacy_wldev *dev)
+{
+ struct ssb_bus *bus = dev->dev->bus;
+ u8 sprom[4];
+ int i;
+ enum b43legacy_led_behaviour behaviour;
+ bool activelow;
+
+ sprom[0] = bus->sprom.gpio0;
+ sprom[1] = bus->sprom.gpio1;
+ sprom[2] = bus->sprom.gpio2;
+ sprom[3] = bus->sprom.gpio3;
+
+ for (i = 0; i < 4; i++) {
+ if (sprom[i] == 0xFF) {
+ /* There is no LED information in the SPROM
+ * for this LED. Hardcode it here. */
+ activelow = false;
+ switch (i) {
+ case 0:
+ behaviour = B43legacy_LED_ACTIVITY;
+ activelow = true;
+ if (bus->boardinfo.vendor == PCI_VENDOR_ID_COMPAQ)
+ behaviour = B43legacy_LED_RADIO_ALL;
+ break;
+ case 1:
+ behaviour = B43legacy_LED_RADIO_B;
+ if (bus->boardinfo.vendor == PCI_VENDOR_ID_ASUSTEK)
+ behaviour = B43legacy_LED_ASSOC;
+ break;
+ case 2:
+ behaviour = B43legacy_LED_RADIO_A;
+ break;
+ case 3:
+ behaviour = B43legacy_LED_OFF;
+ break;
+ default:
+ B43legacy_WARN_ON(1);
+ return;
+ }
+ } else {
+ behaviour = sprom[i] & B43legacy_LED_BEHAVIOUR;
+ activelow = !!(sprom[i] & B43legacy_LED_ACTIVELOW);
+ }
+ b43legacy_map_led(dev, i, behaviour, activelow);
+ }
+}
+
+void b43legacy_leds_exit(struct b43legacy_wldev *dev)
+{
+ b43legacy_unregister_led(&dev->led_tx);
+ b43legacy_unregister_led(&dev->led_rx);
+ b43legacy_unregister_led(&dev->led_assoc);
+ b43legacy_unregister_led(&dev->led_radio);
+}
--- /dev/null
+#ifndef B43legacy_LEDS_H_
+#define B43legacy_LEDS_H_
+
+struct b43legacy_wldev;
+
+#ifdef CONFIG_B43LEGACY_LEDS
+
+#include <linux/types.h>
+#include <linux/leds.h>
+
+
+#define B43legacy_LED_MAX_NAME_LEN 31
+
+struct b43legacy_led {
+ struct b43legacy_wldev *dev;
+ /* The LED class device */
+ struct led_classdev led_dev;
+ /* The index number of the LED. */
+ u8 index;
+ /* If activelow is true, the LED is ON if the
+ * bit is switched off. */
+ bool activelow;
+ /* The unique name string for this LED device. */
+ char name[B43legacy_LED_MAX_NAME_LEN + 1];
+};
+
+#define B43legacy_LED_BEHAVIOUR 0x7F
+#define B43legacy_LED_ACTIVELOW 0x80
+/* LED behaviour values */
+enum b43legacy_led_behaviour {
+ B43legacy_LED_OFF,
+ B43legacy_LED_ON,
+ B43legacy_LED_ACTIVITY,
+ B43legacy_LED_RADIO_ALL,
+ B43legacy_LED_RADIO_A,
+ B43legacy_LED_RADIO_B,
+ B43legacy_LED_MODE_BG,
+ B43legacy_LED_TRANSFER,
+ B43legacy_LED_APTRANSFER,
+ B43legacy_LED_WEIRD,
+ B43legacy_LED_ASSOC,
+ B43legacy_LED_INACTIVE,
+};
+
+void b43legacy_leds_init(struct b43legacy_wldev *dev);
+void b43legacy_leds_exit(struct b43legacy_wldev *dev);
+
+#else /* CONFIG_B43LEGACY_LEDS */
+/* LED support disabled */
+
+struct b43legacy_led {
+ /* empty */
+};
+
+static inline void b43legacy_leds_init(struct b43legacy_wldev *dev)
+{
+}
+static inline void b43legacy_leds_exit(struct b43legacy_wldev *dev)
+{
+}
+#endif /* CONFIG_B43LEGACY_LEDS */
+
+#endif /* B43legacy_LEDS_H_ */
--- /dev/null
+/*
+ *
+ * Broadcom B43legacy wireless driver
+ *
+ * Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>
+ * Copyright (c) 2005-2008 Stefano Brivio <stefano.brivio@polimi.it>
+ * Copyright (c) 2005, 2006 Michael Buesch <m@bues.ch>
+ * Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org>
+ * Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
+ * Copyright (c) 2007 Larry Finger <Larry.Finger@lwfinger.net>
+ *
+ * Some parts of the code in this file are derived from the ipw2200
+ * driver Copyright(c) 2003 - 2004 Intel Corporation.
+
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/if_arp.h>
+#include <linux/etherdevice.h>
+#include <linux/firmware.h>
+#include <linux/workqueue.h>
+#include <linux/sched.h>
+#include <linux/skbuff.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+#include <net/dst.h>
+#include <asm/unaligned.h>
+
+#include "b43legacy.h"
+#include "main.h"
+#include "debugfs.h"
+#include "phy.h"
+#include "dma.h"
+#include "pio.h"
+#include "sysfs.h"
+#include "xmit.h"
+#include "radio.h"
+
+
+MODULE_DESCRIPTION("Broadcom B43legacy wireless driver");
+MODULE_AUTHOR("Martin Langer");
+MODULE_AUTHOR("Stefano Brivio");
+MODULE_AUTHOR("Michael Buesch");
+MODULE_LICENSE("GPL");
+
+MODULE_FIRMWARE("b43legacy/ucode2.fw");
+MODULE_FIRMWARE("b43legacy/ucode4.fw");
+
+#if defined(CONFIG_B43LEGACY_DMA) && defined(CONFIG_B43LEGACY_PIO)
+static int modparam_pio;
+module_param_named(pio, modparam_pio, int, 0444);
+MODULE_PARM_DESC(pio, "enable(1) / disable(0) PIO mode");
+#elif defined(CONFIG_B43LEGACY_DMA)
+# define modparam_pio 0
+#elif defined(CONFIG_B43LEGACY_PIO)
+# define modparam_pio 1
+#endif
+
+static int modparam_bad_frames_preempt;
+module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444);
+MODULE_PARM_DESC(bad_frames_preempt, "enable(1) / disable(0) Bad Frames"
+ " Preemption");
+
+static char modparam_fwpostfix[16];
+module_param_string(fwpostfix, modparam_fwpostfix, 16, 0444);
+MODULE_PARM_DESC(fwpostfix, "Postfix for the firmware files to load.");
+
+/* The following table supports BCM4301, BCM4303 and BCM4306/2 devices. */
+static const struct ssb_device_id b43legacy_ssb_tbl[] = {
+ SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 2),
+ SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 4),
+ {},
+};
+MODULE_DEVICE_TABLE(ssb, b43legacy_ssb_tbl);
+
+
+/* Channel and ratetables are shared for all devices.
+ * They can't be const, because ieee80211 puts some precalculated
+ * data in there. This data is the same for all devices, so we don't
+ * get concurrency issues */
+#define RATETAB_ENT(_rateid, _flags) \
+ { \
+ .bitrate = B43legacy_RATE_TO_100KBPS(_rateid), \
+ .hw_value = (_rateid), \
+ .flags = (_flags), \
+ }
+/*
+ * NOTE: When changing this, sync with xmit.c's
+ * b43legacy_plcp_get_bitrate_idx_* functions!
+ */
+static struct ieee80211_rate __b43legacy_ratetable[] = {
+ RATETAB_ENT(B43legacy_CCK_RATE_1MB, 0),
+ RATETAB_ENT(B43legacy_CCK_RATE_2MB, IEEE80211_RATE_SHORT_PREAMBLE),
+ RATETAB_ENT(B43legacy_CCK_RATE_5MB, IEEE80211_RATE_SHORT_PREAMBLE),
+ RATETAB_ENT(B43legacy_CCK_RATE_11MB, IEEE80211_RATE_SHORT_PREAMBLE),
+ RATETAB_ENT(B43legacy_OFDM_RATE_6MB, 0),
+ RATETAB_ENT(B43legacy_OFDM_RATE_9MB, 0),
+ RATETAB_ENT(B43legacy_OFDM_RATE_12MB, 0),
+ RATETAB_ENT(B43legacy_OFDM_RATE_18MB, 0),
+ RATETAB_ENT(B43legacy_OFDM_RATE_24MB, 0),
+ RATETAB_ENT(B43legacy_OFDM_RATE_36MB, 0),
+ RATETAB_ENT(B43legacy_OFDM_RATE_48MB, 0),
+ RATETAB_ENT(B43legacy_OFDM_RATE_54MB, 0),
+};
+#define b43legacy_b_ratetable (__b43legacy_ratetable + 0)
+#define b43legacy_b_ratetable_size 4
+#define b43legacy_g_ratetable (__b43legacy_ratetable + 0)
+#define b43legacy_g_ratetable_size 12
+
+#define CHANTAB_ENT(_chanid, _freq) \
+ { \
+ .center_freq = (_freq), \
+ .hw_value = (_chanid), \
+ }
+static struct ieee80211_channel b43legacy_bg_chantable[] = {
+ CHANTAB_ENT(1, 2412),
+ CHANTAB_ENT(2, 2417),
+ CHANTAB_ENT(3, 2422),
+ CHANTAB_ENT(4, 2427),
+ CHANTAB_ENT(5, 2432),
+ CHANTAB_ENT(6, 2437),
+ CHANTAB_ENT(7, 2442),
+ CHANTAB_ENT(8, 2447),
+ CHANTAB_ENT(9, 2452),
+ CHANTAB_ENT(10, 2457),
+ CHANTAB_ENT(11, 2462),
+ CHANTAB_ENT(12, 2467),
+ CHANTAB_ENT(13, 2472),
+ CHANTAB_ENT(14, 2484),
+};
+
+static struct ieee80211_supported_band b43legacy_band_2GHz_BPHY = {
+ .channels = b43legacy_bg_chantable,
+ .n_channels = ARRAY_SIZE(b43legacy_bg_chantable),
+ .bitrates = b43legacy_b_ratetable,
+ .n_bitrates = b43legacy_b_ratetable_size,
+};
+
+static struct ieee80211_supported_band b43legacy_band_2GHz_GPHY = {
+ .channels = b43legacy_bg_chantable,
+ .n_channels = ARRAY_SIZE(b43legacy_bg_chantable),
+ .bitrates = b43legacy_g_ratetable,
+ .n_bitrates = b43legacy_g_ratetable_size,
+};
+
+static void b43legacy_wireless_core_exit(struct b43legacy_wldev *dev);
+static int b43legacy_wireless_core_init(struct b43legacy_wldev *dev);
+static void b43legacy_wireless_core_stop(struct b43legacy_wldev *dev);
+static int b43legacy_wireless_core_start(struct b43legacy_wldev *dev);
+
+
+static int b43legacy_ratelimit(struct b43legacy_wl *wl)
+{
+ if (!wl || !wl->current_dev)
+ return 1;
+ if (b43legacy_status(wl->current_dev) < B43legacy_STAT_STARTED)
+ return 1;
+ /* We are up and running.
+ * Ratelimit the messages to avoid DoS over the net. */
+ return net_ratelimit();
+}
+
+void b43legacyinfo(struct b43legacy_wl *wl, const char *fmt, ...)
+{
+ struct va_format vaf;
+ va_list args;
+
+ if (!b43legacy_ratelimit(wl))
+ return;
+
+ va_start(args, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &args;
+
+ printk(KERN_INFO "b43legacy-%s: %pV",
+ (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
+
+ va_end(args);
+}
+
+void b43legacyerr(struct b43legacy_wl *wl, const char *fmt, ...)
+{
+ struct va_format vaf;
+ va_list args;
+
+ if (!b43legacy_ratelimit(wl))
+ return;
+
+ va_start(args, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &args;
+
+ printk(KERN_ERR "b43legacy-%s ERROR: %pV",
+ (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
+
+ va_end(args);
+}
+
+void b43legacywarn(struct b43legacy_wl *wl, const char *fmt, ...)
+{
+ struct va_format vaf;
+ va_list args;
+
+ if (!b43legacy_ratelimit(wl))
+ return;
+
+ va_start(args, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &args;
+
+ printk(KERN_WARNING "b43legacy-%s warning: %pV",
+ (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
+
+ va_end(args);
+}
+
+#if B43legacy_DEBUG
+void b43legacydbg(struct b43legacy_wl *wl, const char *fmt, ...)
+{
+ struct va_format vaf;
+ va_list args;
+
+ va_start(args, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &args;
+
+ printk(KERN_DEBUG "b43legacy-%s debug: %pV",
+ (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
+
+ va_end(args);
+}
+#endif /* DEBUG */
+
+static void b43legacy_ram_write(struct b43legacy_wldev *dev, u16 offset,
+ u32 val)
+{
+ u32 status;
+
+ B43legacy_WARN_ON(offset % 4 != 0);
+
+ status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
+ if (status & B43legacy_MACCTL_BE)
+ val = swab32(val);
+
+ b43legacy_write32(dev, B43legacy_MMIO_RAM_CONTROL, offset);
+ mmiowb();
+ b43legacy_write32(dev, B43legacy_MMIO_RAM_DATA, val);
+}
+
+static inline
+void b43legacy_shm_control_word(struct b43legacy_wldev *dev,
+ u16 routing, u16 offset)
+{
+ u32 control;
+
+ /* "offset" is the WORD offset. */
+
+ control = routing;
+ control <<= 16;
+ control |= offset;
+ b43legacy_write32(dev, B43legacy_MMIO_SHM_CONTROL, control);
+}
+
+u32 b43legacy_shm_read32(struct b43legacy_wldev *dev,
+ u16 routing, u16 offset)
+{
+ u32 ret;
+
+ if (routing == B43legacy_SHM_SHARED) {
+ B43legacy_WARN_ON((offset & 0x0001) != 0);
+ if (offset & 0x0003) {
+ /* Unaligned access */
+ b43legacy_shm_control_word(dev, routing, offset >> 2);
+ ret = b43legacy_read16(dev,
+ B43legacy_MMIO_SHM_DATA_UNALIGNED);
+ ret <<= 16;
+ b43legacy_shm_control_word(dev, routing,
+ (offset >> 2) + 1);
+ ret |= b43legacy_read16(dev, B43legacy_MMIO_SHM_DATA);
+
+ return ret;
+ }
+ offset >>= 2;
+ }
+ b43legacy_shm_control_word(dev, routing, offset);
+ ret = b43legacy_read32(dev, B43legacy_MMIO_SHM_DATA);
+
+ return ret;
+}
+
+u16 b43legacy_shm_read16(struct b43legacy_wldev *dev,
+ u16 routing, u16 offset)
+{
+ u16 ret;
+
+ if (routing == B43legacy_SHM_SHARED) {
+ B43legacy_WARN_ON((offset & 0x0001) != 0);
+ if (offset & 0x0003) {
+ /* Unaligned access */
+ b43legacy_shm_control_word(dev, routing, offset >> 2);
+ ret = b43legacy_read16(dev,
+ B43legacy_MMIO_SHM_DATA_UNALIGNED);
+
+ return ret;
+ }
+ offset >>= 2;
+ }
+ b43legacy_shm_control_word(dev, routing, offset);
+ ret = b43legacy_read16(dev, B43legacy_MMIO_SHM_DATA);
+
+ return ret;
+}
+
+void b43legacy_shm_write32(struct b43legacy_wldev *dev,
+ u16 routing, u16 offset,
+ u32 value)
+{
+ if (routing == B43legacy_SHM_SHARED) {
+ B43legacy_WARN_ON((offset & 0x0001) != 0);
+ if (offset & 0x0003) {
+ /* Unaligned access */
+ b43legacy_shm_control_word(dev, routing, offset >> 2);
+ mmiowb();
+ b43legacy_write16(dev,
+ B43legacy_MMIO_SHM_DATA_UNALIGNED,
+ (value >> 16) & 0xffff);
+ mmiowb();
+ b43legacy_shm_control_word(dev, routing,
+ (offset >> 2) + 1);
+ mmiowb();
+ b43legacy_write16(dev, B43legacy_MMIO_SHM_DATA,
+ value & 0xffff);
+ return;
+ }
+ offset >>= 2;
+ }
+ b43legacy_shm_control_word(dev, routing, offset);
+ mmiowb();
+ b43legacy_write32(dev, B43legacy_MMIO_SHM_DATA, value);
+}
+
+void b43legacy_shm_write16(struct b43legacy_wldev *dev, u16 routing, u16 offset,
+ u16 value)
+{
+ if (routing == B43legacy_SHM_SHARED) {
+ B43legacy_WARN_ON((offset & 0x0001) != 0);
+ if (offset & 0x0003) {
+ /* Unaligned access */
+ b43legacy_shm_control_word(dev, routing, offset >> 2);
+ mmiowb();
+ b43legacy_write16(dev,
+ B43legacy_MMIO_SHM_DATA_UNALIGNED,
+ value);
+ return;
+ }
+ offset >>= 2;
+ }
+ b43legacy_shm_control_word(dev, routing, offset);
+ mmiowb();
+ b43legacy_write16(dev, B43legacy_MMIO_SHM_DATA, value);
+}
+
+/* Read HostFlags */
+u32 b43legacy_hf_read(struct b43legacy_wldev *dev)
+{
+ u32 ret;
+
+ ret = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
+ B43legacy_SHM_SH_HOSTFHI);
+ ret <<= 16;
+ ret |= b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
+ B43legacy_SHM_SH_HOSTFLO);
+
+ return ret;
+}
+
+/* Write HostFlags */
+void b43legacy_hf_write(struct b43legacy_wldev *dev, u32 value)
+{
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
+ B43legacy_SHM_SH_HOSTFLO,
+ (value & 0x0000FFFF));
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
+ B43legacy_SHM_SH_HOSTFHI,
+ ((value & 0xFFFF0000) >> 16));
+}
+
+void b43legacy_tsf_read(struct b43legacy_wldev *dev, u64 *tsf)
+{
+ /* We need to be careful. As we read the TSF from multiple
+ * registers, we should take care of register overflows.
+ * In theory, the whole tsf read process should be atomic.
+ * We try to be atomic here, by restaring the read process,
+ * if any of the high registers changed (overflew).
+ */
+ if (dev->dev->id.revision >= 3) {
+ u32 low;
+ u32 high;
+ u32 high2;
+
+ do {
+ high = b43legacy_read32(dev,
+ B43legacy_MMIO_REV3PLUS_TSF_HIGH);
+ low = b43legacy_read32(dev,
+ B43legacy_MMIO_REV3PLUS_TSF_LOW);
+ high2 = b43legacy_read32(dev,
+ B43legacy_MMIO_REV3PLUS_TSF_HIGH);
+ } while (unlikely(high != high2));
+
+ *tsf = high;
+ *tsf <<= 32;
+ *tsf |= low;
+ } else {
+ u64 tmp;
+ u16 v0;
+ u16 v1;
+ u16 v2;
+ u16 v3;
+ u16 test1;
+ u16 test2;
+ u16 test3;
+
+ do {
+ v3 = b43legacy_read16(dev, B43legacy_MMIO_TSF_3);
+ v2 = b43legacy_read16(dev, B43legacy_MMIO_TSF_2);
+ v1 = b43legacy_read16(dev, B43legacy_MMIO_TSF_1);
+ v0 = b43legacy_read16(dev, B43legacy_MMIO_TSF_0);
+
+ test3 = b43legacy_read16(dev, B43legacy_MMIO_TSF_3);
+ test2 = b43legacy_read16(dev, B43legacy_MMIO_TSF_2);
+ test1 = b43legacy_read16(dev, B43legacy_MMIO_TSF_1);
+ } while (v3 != test3 || v2 != test2 || v1 != test1);
+
+ *tsf = v3;
+ *tsf <<= 48;
+ tmp = v2;
+ tmp <<= 32;
+ *tsf |= tmp;
+ tmp = v1;
+ tmp <<= 16;
+ *tsf |= tmp;
+ *tsf |= v0;
+ }
+}
+
+static void b43legacy_time_lock(struct b43legacy_wldev *dev)
+{
+ u32 status;
+
+ status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
+ status |= B43legacy_MACCTL_TBTTHOLD;
+ b43legacy_write32(dev, B43legacy_MMIO_MACCTL, status);
+ mmiowb();
+}
+
+static void b43legacy_time_unlock(struct b43legacy_wldev *dev)
+{
+ u32 status;
+
+ status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
+ status &= ~B43legacy_MACCTL_TBTTHOLD;
+ b43legacy_write32(dev, B43legacy_MMIO_MACCTL, status);
+}
+
+static void b43legacy_tsf_write_locked(struct b43legacy_wldev *dev, u64 tsf)
+{
+ /* Be careful with the in-progress timer.
+ * First zero out the low register, so we have a full
+ * register-overflow duration to complete the operation.
+ */
+ if (dev->dev->id.revision >= 3) {
+ u32 lo = (tsf & 0x00000000FFFFFFFFULL);
+ u32 hi = (tsf & 0xFFFFFFFF00000000ULL) >> 32;
+
+ b43legacy_write32(dev, B43legacy_MMIO_REV3PLUS_TSF_LOW, 0);
+ mmiowb();
+ b43legacy_write32(dev, B43legacy_MMIO_REV3PLUS_TSF_HIGH,
+ hi);
+ mmiowb();
+ b43legacy_write32(dev, B43legacy_MMIO_REV3PLUS_TSF_LOW,
+ lo);
+ } else {
+ u16 v0 = (tsf & 0x000000000000FFFFULL);
+ u16 v1 = (tsf & 0x00000000FFFF0000ULL) >> 16;
+ u16 v2 = (tsf & 0x0000FFFF00000000ULL) >> 32;
+ u16 v3 = (tsf & 0xFFFF000000000000ULL) >> 48;
+
+ b43legacy_write16(dev, B43legacy_MMIO_TSF_0, 0);
+ mmiowb();
+ b43legacy_write16(dev, B43legacy_MMIO_TSF_3, v3);
+ mmiowb();
+ b43legacy_write16(dev, B43legacy_MMIO_TSF_2, v2);
+ mmiowb();
+ b43legacy_write16(dev, B43legacy_MMIO_TSF_1, v1);
+ mmiowb();
+ b43legacy_write16(dev, B43legacy_MMIO_TSF_0, v0);
+ }
+}
+
+void b43legacy_tsf_write(struct b43legacy_wldev *dev, u64 tsf)
+{
+ b43legacy_time_lock(dev);
+ b43legacy_tsf_write_locked(dev, tsf);
+ b43legacy_time_unlock(dev);
+}
+
+static
+void b43legacy_macfilter_set(struct b43legacy_wldev *dev,
+ u16 offset, const u8 *mac)
+{
+ static const u8 zero_addr[ETH_ALEN] = { 0 };
+ u16 data;
+
+ if (!mac)
+ mac = zero_addr;
+
+ offset |= 0x0020;
+ b43legacy_write16(dev, B43legacy_MMIO_MACFILTER_CONTROL, offset);
+
+ data = mac[0];
+ data |= mac[1] << 8;
+ b43legacy_write16(dev, B43legacy_MMIO_MACFILTER_DATA, data);
+ data = mac[2];
+ data |= mac[3] << 8;
+ b43legacy_write16(dev, B43legacy_MMIO_MACFILTER_DATA, data);
+ data = mac[4];
+ data |= mac[5] << 8;
+ b43legacy_write16(dev, B43legacy_MMIO_MACFILTER_DATA, data);
+}
+
+static void b43legacy_write_mac_bssid_templates(struct b43legacy_wldev *dev)
+{
+ static const u8 zero_addr[ETH_ALEN] = { 0 };
+ const u8 *mac = dev->wl->mac_addr;
+ const u8 *bssid = dev->wl->bssid;
+ u8 mac_bssid[ETH_ALEN * 2];
+ int i;
+ u32 tmp;
+
+ if (!bssid)
+ bssid = zero_addr;
+ if (!mac)
+ mac = zero_addr;
+
+ b43legacy_macfilter_set(dev, B43legacy_MACFILTER_BSSID, bssid);
+
+ memcpy(mac_bssid, mac, ETH_ALEN);
+ memcpy(mac_bssid + ETH_ALEN, bssid, ETH_ALEN);
+
+ /* Write our MAC address and BSSID to template ram */
+ for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32)) {
+ tmp = (u32)(mac_bssid[i + 0]);
+ tmp |= (u32)(mac_bssid[i + 1]) << 8;
+ tmp |= (u32)(mac_bssid[i + 2]) << 16;
+ tmp |= (u32)(mac_bssid[i + 3]) << 24;
+ b43legacy_ram_write(dev, 0x20 + i, tmp);
+ b43legacy_ram_write(dev, 0x78 + i, tmp);
+ b43legacy_ram_write(dev, 0x478 + i, tmp);
+ }
+}
+
+static void b43legacy_upload_card_macaddress(struct b43legacy_wldev *dev)
+{
+ b43legacy_write_mac_bssid_templates(dev);
+ b43legacy_macfilter_set(dev, B43legacy_MACFILTER_SELF,
+ dev->wl->mac_addr);
+}
+
+static void b43legacy_set_slot_time(struct b43legacy_wldev *dev,
+ u16 slot_time)
+{
+ /* slot_time is in usec. */
+ if (dev->phy.type != B43legacy_PHYTYPE_G)
+ return;
+ b43legacy_write16(dev, 0x684, 510 + slot_time);
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0010,
+ slot_time);
+}
+
+static void b43legacy_short_slot_timing_enable(struct b43legacy_wldev *dev)
+{
+ b43legacy_set_slot_time(dev, 9);
+}
+
+static void b43legacy_short_slot_timing_disable(struct b43legacy_wldev *dev)
+{
+ b43legacy_set_slot_time(dev, 20);
+}
+
+/* Synchronize IRQ top- and bottom-half.
+ * IRQs must be masked before calling this.
+ * This must not be called with the irq_lock held.
+ */
+static void b43legacy_synchronize_irq(struct b43legacy_wldev *dev)
+{
+ synchronize_irq(dev->dev->irq);
+ tasklet_kill(&dev->isr_tasklet);
+}
+
+/* DummyTransmission function, as documented on
+ * http://bcm-specs.sipsolutions.net/DummyTransmission
+ */
+void b43legacy_dummy_transmission(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ unsigned int i;
+ unsigned int max_loop;
+ u16 value;
+ u32 buffer[5] = {
+ 0x00000000,
+ 0x00D40000,
+ 0x00000000,
+ 0x01000000,
+ 0x00000000,
+ };
+
+ switch (phy->type) {
+ case B43legacy_PHYTYPE_B:
+ case B43legacy_PHYTYPE_G:
+ max_loop = 0xFA;
+ buffer[0] = 0x000B846E;
+ break;
+ default:
+ B43legacy_BUG_ON(1);
+ return;
+ }
+
+ for (i = 0; i < 5; i++)
+ b43legacy_ram_write(dev, i * 4, buffer[i]);
+
+ /* dummy read follows */
+ b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
+
+ b43legacy_write16(dev, 0x0568, 0x0000);
+ b43legacy_write16(dev, 0x07C0, 0x0000);
+ b43legacy_write16(dev, 0x050C, 0x0000);
+ b43legacy_write16(dev, 0x0508, 0x0000);
+ b43legacy_write16(dev, 0x050A, 0x0000);
+ b43legacy_write16(dev, 0x054C, 0x0000);
+ b43legacy_write16(dev, 0x056A, 0x0014);
+ b43legacy_write16(dev, 0x0568, 0x0826);
+ b43legacy_write16(dev, 0x0500, 0x0000);
+ b43legacy_write16(dev, 0x0502, 0x0030);
+
+ if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
+ b43legacy_radio_write16(dev, 0x0051, 0x0017);
+ for (i = 0x00; i < max_loop; i++) {
+ value = b43legacy_read16(dev, 0x050E);
+ if (value & 0x0080)
+ break;
+ udelay(10);
+ }
+ for (i = 0x00; i < 0x0A; i++) {
+ value = b43legacy_read16(dev, 0x050E);
+ if (value & 0x0400)
+ break;
+ udelay(10);
+ }
+ for (i = 0x00; i < 0x0A; i++) {
+ value = b43legacy_read16(dev, 0x0690);
+ if (!(value & 0x0100))
+ break;
+ udelay(10);
+ }
+ if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
+ b43legacy_radio_write16(dev, 0x0051, 0x0037);
+}
+
+/* Turn the Analog ON/OFF */
+static void b43legacy_switch_analog(struct b43legacy_wldev *dev, int on)
+{
+ b43legacy_write16(dev, B43legacy_MMIO_PHY0, on ? 0 : 0xF4);
+}
+
+void b43legacy_wireless_core_reset(struct b43legacy_wldev *dev, u32 flags)
+{
+ u32 tmslow;
+ u32 macctl;
+
+ flags |= B43legacy_TMSLOW_PHYCLKEN;
+ flags |= B43legacy_TMSLOW_PHYRESET;
+ ssb_device_enable(dev->dev, flags);
+ msleep(2); /* Wait for the PLL to turn on. */
+
+ /* Now take the PHY out of Reset again */
+ tmslow = ssb_read32(dev->dev, SSB_TMSLOW);
+ tmslow |= SSB_TMSLOW_FGC;
+ tmslow &= ~B43legacy_TMSLOW_PHYRESET;
+ ssb_write32(dev->dev, SSB_TMSLOW, tmslow);
+ ssb_read32(dev->dev, SSB_TMSLOW); /* flush */
+ msleep(1);
+ tmslow &= ~SSB_TMSLOW_FGC;
+ ssb_write32(dev->dev, SSB_TMSLOW, tmslow);
+ ssb_read32(dev->dev, SSB_TMSLOW); /* flush */
+ msleep(1);
+
+ /* Turn Analog ON */
+ b43legacy_switch_analog(dev, 1);
+
+ macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
+ macctl &= ~B43legacy_MACCTL_GMODE;
+ if (flags & B43legacy_TMSLOW_GMODE) {
+ macctl |= B43legacy_MACCTL_GMODE;
+ dev->phy.gmode = true;
+ } else
+ dev->phy.gmode = false;
+ macctl |= B43legacy_MACCTL_IHR_ENABLED;
+ b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
+}
+
+static void handle_irq_transmit_status(struct b43legacy_wldev *dev)
+{
+ u32 v0;
+ u32 v1;
+ u16 tmp;
+ struct b43legacy_txstatus stat;
+
+ while (1) {
+ v0 = b43legacy_read32(dev, B43legacy_MMIO_XMITSTAT_0);
+ if (!(v0 & 0x00000001))
+ break;
+ v1 = b43legacy_read32(dev, B43legacy_MMIO_XMITSTAT_1);
+
+ stat.cookie = (v0 >> 16);
+ stat.seq = (v1 & 0x0000FFFF);
+ stat.phy_stat = ((v1 & 0x00FF0000) >> 16);
+ tmp = (v0 & 0x0000FFFF);
+ stat.frame_count = ((tmp & 0xF000) >> 12);
+ stat.rts_count = ((tmp & 0x0F00) >> 8);
+ stat.supp_reason = ((tmp & 0x001C) >> 2);
+ stat.pm_indicated = !!(tmp & 0x0080);
+ stat.intermediate = !!(tmp & 0x0040);
+ stat.for_ampdu = !!(tmp & 0x0020);
+ stat.acked = !!(tmp & 0x0002);
+
+ b43legacy_handle_txstatus(dev, &stat);
+ }
+}
+
+static void drain_txstatus_queue(struct b43legacy_wldev *dev)
+{
+ u32 dummy;
+
+ if (dev->dev->id.revision < 5)
+ return;
+ /* Read all entries from the microcode TXstatus FIFO
+ * and throw them away.
+ */
+ while (1) {
+ dummy = b43legacy_read32(dev, B43legacy_MMIO_XMITSTAT_0);
+ if (!(dummy & 0x00000001))
+ break;
+ dummy = b43legacy_read32(dev, B43legacy_MMIO_XMITSTAT_1);
+ }
+}
+
+static u32 b43legacy_jssi_read(struct b43legacy_wldev *dev)
+{
+ u32 val = 0;
+
+ val = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x40A);
+ val <<= 16;
+ val |= b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x408);
+
+ return val;
+}
+
+static void b43legacy_jssi_write(struct b43legacy_wldev *dev, u32 jssi)
+{
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x408,
+ (jssi & 0x0000FFFF));
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x40A,
+ (jssi & 0xFFFF0000) >> 16);
+}
+
+static void b43legacy_generate_noise_sample(struct b43legacy_wldev *dev)
+{
+ b43legacy_jssi_write(dev, 0x7F7F7F7F);
+ b43legacy_write32(dev, B43legacy_MMIO_MACCMD,
+ b43legacy_read32(dev, B43legacy_MMIO_MACCMD)
+ | B43legacy_MACCMD_BGNOISE);
+ B43legacy_WARN_ON(dev->noisecalc.channel_at_start !=
+ dev->phy.channel);
+}
+
+static void b43legacy_calculate_link_quality(struct b43legacy_wldev *dev)
+{
+ /* Top half of Link Quality calculation. */
+
+ if (dev->noisecalc.calculation_running)
+ return;
+ dev->noisecalc.channel_at_start = dev->phy.channel;
+ dev->noisecalc.calculation_running = true;
+ dev->noisecalc.nr_samples = 0;
+
+ b43legacy_generate_noise_sample(dev);
+}
+
+static void handle_irq_noise(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 tmp;
+ u8 noise[4];
+ u8 i;
+ u8 j;
+ s32 average;
+
+ /* Bottom half of Link Quality calculation. */
+
+ B43legacy_WARN_ON(!dev->noisecalc.calculation_running);
+ if (dev->noisecalc.channel_at_start != phy->channel)
+ goto drop_calculation;
+ *((__le32 *)noise) = cpu_to_le32(b43legacy_jssi_read(dev));
+ if (noise[0] == 0x7F || noise[1] == 0x7F ||
+ noise[2] == 0x7F || noise[3] == 0x7F)
+ goto generate_new;
+
+ /* Get the noise samples. */
+ B43legacy_WARN_ON(dev->noisecalc.nr_samples >= 8);
+ i = dev->noisecalc.nr_samples;
+ noise[0] = clamp_val(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
+ noise[1] = clamp_val(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
+ noise[2] = clamp_val(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
+ noise[3] = clamp_val(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
+ dev->noisecalc.samples[i][0] = phy->nrssi_lt[noise[0]];
+ dev->noisecalc.samples[i][1] = phy->nrssi_lt[noise[1]];
+ dev->noisecalc.samples[i][2] = phy->nrssi_lt[noise[2]];
+ dev->noisecalc.samples[i][3] = phy->nrssi_lt[noise[3]];
+ dev->noisecalc.nr_samples++;
+ if (dev->noisecalc.nr_samples == 8) {
+ /* Calculate the Link Quality by the noise samples. */
+ average = 0;
+ for (i = 0; i < 8; i++) {
+ for (j = 0; j < 4; j++)
+ average += dev->noisecalc.samples[i][j];
+ }
+ average /= (8 * 4);
+ average *= 125;
+ average += 64;
+ average /= 128;
+ tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
+ 0x40C);
+ tmp = (tmp / 128) & 0x1F;
+ if (tmp >= 8)
+ average += 2;
+ else
+ average -= 25;
+ if (tmp == 8)
+ average -= 72;
+ else
+ average -= 48;
+
+ dev->stats.link_noise = average;
+drop_calculation:
+ dev->noisecalc.calculation_running = false;
+ return;
+ }
+generate_new:
+ b43legacy_generate_noise_sample(dev);
+}
+
+static void handle_irq_tbtt_indication(struct b43legacy_wldev *dev)
+{
+ if (b43legacy_is_mode(dev->wl, NL80211_IFTYPE_AP)) {
+ /* TODO: PS TBTT */
+ } else {
+ if (1/*FIXME: the last PSpoll frame was sent successfully */)
+ b43legacy_power_saving_ctl_bits(dev, -1, -1);
+ }
+ if (b43legacy_is_mode(dev->wl, NL80211_IFTYPE_ADHOC))
+ dev->dfq_valid = true;
+}
+
+static void handle_irq_atim_end(struct b43legacy_wldev *dev)
+{
+ if (dev->dfq_valid) {
+ b43legacy_write32(dev, B43legacy_MMIO_MACCMD,
+ b43legacy_read32(dev, B43legacy_MMIO_MACCMD)
+ | B43legacy_MACCMD_DFQ_VALID);
+ dev->dfq_valid = false;
+ }
+}
+
+static void handle_irq_pmq(struct b43legacy_wldev *dev)
+{
+ u32 tmp;
+
+ /* TODO: AP mode. */
+
+ while (1) {
+ tmp = b43legacy_read32(dev, B43legacy_MMIO_PS_STATUS);
+ if (!(tmp & 0x00000008))
+ break;
+ }
+ /* 16bit write is odd, but correct. */
+ b43legacy_write16(dev, B43legacy_MMIO_PS_STATUS, 0x0002);
+}
+
+static void b43legacy_write_template_common(struct b43legacy_wldev *dev,
+ const u8 *data, u16 size,
+ u16 ram_offset,
+ u16 shm_size_offset, u8 rate)
+{
+ u32 i;
+ u32 tmp;
+ struct b43legacy_plcp_hdr4 plcp;
+
+ plcp.data = 0;
+ b43legacy_generate_plcp_hdr(&plcp, size + FCS_LEN, rate);
+ b43legacy_ram_write(dev, ram_offset, le32_to_cpu(plcp.data));
+ ram_offset += sizeof(u32);
+ /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet.
+ * So leave the first two bytes of the next write blank.
+ */
+ tmp = (u32)(data[0]) << 16;
+ tmp |= (u32)(data[1]) << 24;
+ b43legacy_ram_write(dev, ram_offset, tmp);
+ ram_offset += sizeof(u32);
+ for (i = 2; i < size; i += sizeof(u32)) {
+ tmp = (u32)(data[i + 0]);
+ if (i + 1 < size)
+ tmp |= (u32)(data[i + 1]) << 8;
+ if (i + 2 < size)
+ tmp |= (u32)(data[i + 2]) << 16;
+ if (i + 3 < size)
+ tmp |= (u32)(data[i + 3]) << 24;
+ b43legacy_ram_write(dev, ram_offset + i - 2, tmp);
+ }
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, shm_size_offset,
+ size + sizeof(struct b43legacy_plcp_hdr6));
+}
+
+/* Convert a b43legacy antenna number value to the PHY TX control value. */
+static u16 b43legacy_antenna_to_phyctl(int antenna)
+{
+ switch (antenna) {
+ case B43legacy_ANTENNA0:
+ return B43legacy_TX4_PHY_ANT0;
+ case B43legacy_ANTENNA1:
+ return B43legacy_TX4_PHY_ANT1;
+ }
+ return B43legacy_TX4_PHY_ANTLAST;
+}
+
+static void b43legacy_write_beacon_template(struct b43legacy_wldev *dev,
+ u16 ram_offset,
+ u16 shm_size_offset)
+{
+
+ unsigned int i, len, variable_len;
+ const struct ieee80211_mgmt *bcn;
+ const u8 *ie;
+ bool tim_found = false;
+ unsigned int rate;
+ u16 ctl;
+ int antenna;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(dev->wl->current_beacon);
+
+ bcn = (const struct ieee80211_mgmt *)(dev->wl->current_beacon->data);
+ len = min_t(size_t, dev->wl->current_beacon->len,
+ 0x200 - sizeof(struct b43legacy_plcp_hdr6));
+ rate = ieee80211_get_tx_rate(dev->wl->hw, info)->hw_value;
+
+ b43legacy_write_template_common(dev, (const u8 *)bcn, len, ram_offset,
+ shm_size_offset, rate);
+
+ /* Write the PHY TX control parameters. */
+ antenna = B43legacy_ANTENNA_DEFAULT;
+ antenna = b43legacy_antenna_to_phyctl(antenna);
+ ctl = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
+ B43legacy_SHM_SH_BEACPHYCTL);
+ /* We can't send beacons with short preamble. Would get PHY errors. */
+ ctl &= ~B43legacy_TX4_PHY_SHORTPRMBL;
+ ctl &= ~B43legacy_TX4_PHY_ANT;
+ ctl &= ~B43legacy_TX4_PHY_ENC;
+ ctl |= antenna;
+ ctl |= B43legacy_TX4_PHY_ENC_CCK;
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
+ B43legacy_SHM_SH_BEACPHYCTL, ctl);
+
+ /* Find the position of the TIM and the DTIM_period value
+ * and write them to SHM. */
+ ie = bcn->u.beacon.variable;
+ variable_len = len - offsetof(struct ieee80211_mgmt, u.beacon.variable);
+ for (i = 0; i < variable_len - 2; ) {
+ uint8_t ie_id, ie_len;
+
+ ie_id = ie[i];
+ ie_len = ie[i + 1];
+ if (ie_id == 5) {
+ u16 tim_position;
+ u16 dtim_period;
+ /* This is the TIM Information Element */
+
+ /* Check whether the ie_len is in the beacon data range. */
+ if (variable_len < ie_len + 2 + i)
+ break;
+ /* A valid TIM is at least 4 bytes long. */
+ if (ie_len < 4)
+ break;
+ tim_found = true;
+
+ tim_position = sizeof(struct b43legacy_plcp_hdr6);
+ tim_position += offsetof(struct ieee80211_mgmt,
+ u.beacon.variable);
+ tim_position += i;
+
+ dtim_period = ie[i + 3];
+
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
+ B43legacy_SHM_SH_TIMPOS, tim_position);
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
+ B43legacy_SHM_SH_DTIMP, dtim_period);
+ break;
+ }
+ i += ie_len + 2;
+ }
+ if (!tim_found) {
+ b43legacywarn(dev->wl, "Did not find a valid TIM IE in the "
+ "beacon template packet. AP or IBSS operation "
+ "may be broken.\n");
+ } else
+ b43legacydbg(dev->wl, "Updated beacon template\n");
+}
+
+static void b43legacy_write_probe_resp_plcp(struct b43legacy_wldev *dev,
+ u16 shm_offset, u16 size,
+ struct ieee80211_rate *rate)
+{
+ struct b43legacy_plcp_hdr4 plcp;
+ u32 tmp;
+ __le16 dur;
+
+ plcp.data = 0;
+ b43legacy_generate_plcp_hdr(&plcp, size + FCS_LEN, rate->hw_value);
+ dur = ieee80211_generic_frame_duration(dev->wl->hw,
+ dev->wl->vif,
+ IEEE80211_BAND_2GHZ,
+ size,
+ rate);
+ /* Write PLCP in two parts and timing for packet transfer */
+ tmp = le32_to_cpu(plcp.data);
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, shm_offset,
+ tmp & 0xFFFF);
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, shm_offset + 2,
+ tmp >> 16);
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, shm_offset + 6,
+ le16_to_cpu(dur));
+}
+
+/* Instead of using custom probe response template, this function
+ * just patches custom beacon template by:
+ * 1) Changing packet type
+ * 2) Patching duration field
+ * 3) Stripping TIM
+ */
+static const u8 *b43legacy_generate_probe_resp(struct b43legacy_wldev *dev,
+ u16 *dest_size,
+ struct ieee80211_rate *rate)
+{
+ const u8 *src_data;
+ u8 *dest_data;
+ u16 src_size, elem_size, src_pos, dest_pos;
+ __le16 dur;
+ struct ieee80211_hdr *hdr;
+ size_t ie_start;
+
+ src_size = dev->wl->current_beacon->len;
+ src_data = (const u8 *)dev->wl->current_beacon->data;
+
+ /* Get the start offset of the variable IEs in the packet. */
+ ie_start = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
+ B43legacy_WARN_ON(ie_start != offsetof(struct ieee80211_mgmt,
+ u.beacon.variable));
+
+ if (B43legacy_WARN_ON(src_size < ie_start))
+ return NULL;
+
+ dest_data = kmalloc(src_size, GFP_ATOMIC);
+ if (unlikely(!dest_data))
+ return NULL;
+
+ /* Copy the static data and all Information Elements, except the TIM. */
+ memcpy(dest_data, src_data, ie_start);
+ src_pos = ie_start;
+ dest_pos = ie_start;
+ for ( ; src_pos < src_size - 2; src_pos += elem_size) {
+ elem_size = src_data[src_pos + 1] + 2;
+ if (src_data[src_pos] == 5) {
+ /* This is the TIM. */
+ continue;
+ }
+ memcpy(dest_data + dest_pos, src_data + src_pos, elem_size);
+ dest_pos += elem_size;
+ }
+ *dest_size = dest_pos;
+ hdr = (struct ieee80211_hdr *)dest_data;
+
+ /* Set the frame control. */
+ hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_PROBE_RESP);
+ dur = ieee80211_generic_frame_duration(dev->wl->hw,
+ dev->wl->vif,
+ IEEE80211_BAND_2GHZ,
+ *dest_size,
+ rate);
+ hdr->duration_id = dur;
+
+ return dest_data;
+}
+
+static void b43legacy_write_probe_resp_template(struct b43legacy_wldev *dev,
+ u16 ram_offset,
+ u16 shm_size_offset,
+ struct ieee80211_rate *rate)
+{
+ const u8 *probe_resp_data;
+ u16 size;
+
+ size = dev->wl->current_beacon->len;
+ probe_resp_data = b43legacy_generate_probe_resp(dev, &size, rate);
+ if (unlikely(!probe_resp_data))
+ return;
+
+ /* Looks like PLCP headers plus packet timings are stored for
+ * all possible basic rates
+ */
+ b43legacy_write_probe_resp_plcp(dev, 0x31A, size,
+ &b43legacy_b_ratetable[0]);
+ b43legacy_write_probe_resp_plcp(dev, 0x32C, size,
+ &b43legacy_b_ratetable[1]);
+ b43legacy_write_probe_resp_plcp(dev, 0x33E, size,
+ &b43legacy_b_ratetable[2]);
+ b43legacy_write_probe_resp_plcp(dev, 0x350, size,
+ &b43legacy_b_ratetable[3]);
+
+ size = min_t(size_t, size,
+ 0x200 - sizeof(struct b43legacy_plcp_hdr6));
+ b43legacy_write_template_common(dev, probe_resp_data,
+ size, ram_offset,
+ shm_size_offset, rate->hw_value);
+ kfree(probe_resp_data);
+}
+
+static void b43legacy_upload_beacon0(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_wl *wl = dev->wl;
+
+ if (wl->beacon0_uploaded)
+ return;
+ b43legacy_write_beacon_template(dev, 0x68, 0x18);
+ /* FIXME: Probe resp upload doesn't really belong here,
+ * but we don't use that feature anyway. */
+ b43legacy_write_probe_resp_template(dev, 0x268, 0x4A,
+ &__b43legacy_ratetable[3]);
+ wl->beacon0_uploaded = true;
+}
+
+static void b43legacy_upload_beacon1(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_wl *wl = dev->wl;
+
+ if (wl->beacon1_uploaded)
+ return;
+ b43legacy_write_beacon_template(dev, 0x468, 0x1A);
+ wl->beacon1_uploaded = true;
+}
+
+static void handle_irq_beacon(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_wl *wl = dev->wl;
+ u32 cmd, beacon0_valid, beacon1_valid;
+
+ if (!b43legacy_is_mode(wl, NL80211_IFTYPE_AP))
+ return;
+
+ /* This is the bottom half of the asynchronous beacon update. */
+
+ /* Ignore interrupt in the future. */
+ dev->irq_mask &= ~B43legacy_IRQ_BEACON;
+
+ cmd = b43legacy_read32(dev, B43legacy_MMIO_MACCMD);
+ beacon0_valid = (cmd & B43legacy_MACCMD_BEACON0_VALID);
+ beacon1_valid = (cmd & B43legacy_MACCMD_BEACON1_VALID);
+
+ /* Schedule interrupt manually, if busy. */
+ if (beacon0_valid && beacon1_valid) {
+ b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON, B43legacy_IRQ_BEACON);
+ dev->irq_mask |= B43legacy_IRQ_BEACON;
+ return;
+ }
+
+ if (unlikely(wl->beacon_templates_virgin)) {
+ /* We never uploaded a beacon before.
+ * Upload both templates now, but only mark one valid. */
+ wl->beacon_templates_virgin = false;
+ b43legacy_upload_beacon0(dev);
+ b43legacy_upload_beacon1(dev);
+ cmd = b43legacy_read32(dev, B43legacy_MMIO_MACCMD);
+ cmd |= B43legacy_MACCMD_BEACON0_VALID;
+ b43legacy_write32(dev, B43legacy_MMIO_MACCMD, cmd);
+ } else {
+ if (!beacon0_valid) {
+ b43legacy_upload_beacon0(dev);
+ cmd = b43legacy_read32(dev, B43legacy_MMIO_MACCMD);
+ cmd |= B43legacy_MACCMD_BEACON0_VALID;
+ b43legacy_write32(dev, B43legacy_MMIO_MACCMD, cmd);
+ } else if (!beacon1_valid) {
+ b43legacy_upload_beacon1(dev);
+ cmd = b43legacy_read32(dev, B43legacy_MMIO_MACCMD);
+ cmd |= B43legacy_MACCMD_BEACON1_VALID;
+ b43legacy_write32(dev, B43legacy_MMIO_MACCMD, cmd);
+ }
+ }
+}
+
+static void b43legacy_beacon_update_trigger_work(struct work_struct *work)
+{
+ struct b43legacy_wl *wl = container_of(work, struct b43legacy_wl,
+ beacon_update_trigger);
+ struct b43legacy_wldev *dev;
+
+ mutex_lock(&wl->mutex);
+ dev = wl->current_dev;
+ if (likely(dev && (b43legacy_status(dev) >= B43legacy_STAT_INITIALIZED))) {
+ spin_lock_irq(&wl->irq_lock);
+ /* Update beacon right away or defer to IRQ. */
+ handle_irq_beacon(dev);
+ /* The handler might have updated the IRQ mask. */
+ b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK,
+ dev->irq_mask);
+ mmiowb();
+ spin_unlock_irq(&wl->irq_lock);
+ }
+ mutex_unlock(&wl->mutex);
+}
+
+/* Asynchronously update the packet templates in template RAM.
+ * Locking: Requires wl->irq_lock to be locked. */
+static void b43legacy_update_templates(struct b43legacy_wl *wl)
+{
+ struct sk_buff *beacon;
+ /* This is the top half of the ansynchronous beacon update. The bottom
+ * half is the beacon IRQ. Beacon update must be asynchronous to avoid
+ * sending an invalid beacon. This can happen for example, if the
+ * firmware transmits a beacon while we are updating it. */
+
+ /* We could modify the existing beacon and set the aid bit in the TIM
+ * field, but that would probably require resizing and moving of data
+ * within the beacon template. Simply request a new beacon and let
+ * mac80211 do the hard work. */
+ beacon = ieee80211_beacon_get(wl->hw, wl->vif);
+ if (unlikely(!beacon))
+ return;
+
+ if (wl->current_beacon)
+ dev_kfree_skb_any(wl->current_beacon);
+ wl->current_beacon = beacon;
+ wl->beacon0_uploaded = false;
+ wl->beacon1_uploaded = false;
+ ieee80211_queue_work(wl->hw, &wl->beacon_update_trigger);
+}
+
+static void b43legacy_set_beacon_int(struct b43legacy_wldev *dev,
+ u16 beacon_int)
+{
+ b43legacy_time_lock(dev);
+ if (dev->dev->id.revision >= 3) {
+ b43legacy_write32(dev, B43legacy_MMIO_TSF_CFP_REP,
+ (beacon_int << 16));
+ b43legacy_write32(dev, B43legacy_MMIO_TSF_CFP_START,
+ (beacon_int << 10));
+ } else {
+ b43legacy_write16(dev, 0x606, (beacon_int >> 6));
+ b43legacy_write16(dev, 0x610, beacon_int);
+ }
+ b43legacy_time_unlock(dev);
+ b43legacydbg(dev->wl, "Set beacon interval to %u\n", beacon_int);
+}
+
+static void handle_irq_ucode_debug(struct b43legacy_wldev *dev)
+{
+}
+
+/* Interrupt handler bottom-half */
+static void b43legacy_interrupt_tasklet(struct b43legacy_wldev *dev)
+{
+ u32 reason;
+ u32 dma_reason[ARRAY_SIZE(dev->dma_reason)];
+ u32 merged_dma_reason = 0;
+ int i;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->wl->irq_lock, flags);
+
+ B43legacy_WARN_ON(b43legacy_status(dev) <
+ B43legacy_STAT_INITIALIZED);
+
+ reason = dev->irq_reason;
+ for (i = 0; i < ARRAY_SIZE(dma_reason); i++) {
+ dma_reason[i] = dev->dma_reason[i];
+ merged_dma_reason |= dma_reason[i];
+ }
+
+ if (unlikely(reason & B43legacy_IRQ_MAC_TXERR))
+ b43legacyerr(dev->wl, "MAC transmission error\n");
+
+ if (unlikely(reason & B43legacy_IRQ_PHY_TXERR)) {
+ b43legacyerr(dev->wl, "PHY transmission error\n");
+ rmb();
+ if (unlikely(atomic_dec_and_test(&dev->phy.txerr_cnt))) {
+ b43legacyerr(dev->wl, "Too many PHY TX errors, "
+ "restarting the controller\n");
+ b43legacy_controller_restart(dev, "PHY TX errors");
+ }
+ }
+
+ if (unlikely(merged_dma_reason & (B43legacy_DMAIRQ_FATALMASK |
+ B43legacy_DMAIRQ_NONFATALMASK))) {
+ if (merged_dma_reason & B43legacy_DMAIRQ_FATALMASK) {
+ b43legacyerr(dev->wl, "Fatal DMA error: "
+ "0x%08X, 0x%08X, 0x%08X, "
+ "0x%08X, 0x%08X, 0x%08X\n",
+ dma_reason[0], dma_reason[1],
+ dma_reason[2], dma_reason[3],
+ dma_reason[4], dma_reason[5]);
+ b43legacy_controller_restart(dev, "DMA error");
+ mmiowb();
+ spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
+ return;
+ }
+ if (merged_dma_reason & B43legacy_DMAIRQ_NONFATALMASK)
+ b43legacyerr(dev->wl, "DMA error: "
+ "0x%08X, 0x%08X, 0x%08X, "
+ "0x%08X, 0x%08X, 0x%08X\n",
+ dma_reason[0], dma_reason[1],
+ dma_reason[2], dma_reason[3],
+ dma_reason[4], dma_reason[5]);
+ }
+
+ if (unlikely(reason & B43legacy_IRQ_UCODE_DEBUG))
+ handle_irq_ucode_debug(dev);
+ if (reason & B43legacy_IRQ_TBTT_INDI)
+ handle_irq_tbtt_indication(dev);
+ if (reason & B43legacy_IRQ_ATIM_END)
+ handle_irq_atim_end(dev);
+ if (reason & B43legacy_IRQ_BEACON)
+ handle_irq_beacon(dev);
+ if (reason & B43legacy_IRQ_PMQ)
+ handle_irq_pmq(dev);
+ if (reason & B43legacy_IRQ_TXFIFO_FLUSH_OK)
+ ;/*TODO*/
+ if (reason & B43legacy_IRQ_NOISESAMPLE_OK)
+ handle_irq_noise(dev);
+
+ /* Check the DMA reason registers for received data. */
+ if (dma_reason[0] & B43legacy_DMAIRQ_RX_DONE) {
+ if (b43legacy_using_pio(dev))
+ b43legacy_pio_rx(dev->pio.queue0);
+ else
+ b43legacy_dma_rx(dev->dma.rx_ring0);
+ }
+ B43legacy_WARN_ON(dma_reason[1] & B43legacy_DMAIRQ_RX_DONE);
+ B43legacy_WARN_ON(dma_reason[2] & B43legacy_DMAIRQ_RX_DONE);
+ if (dma_reason[3] & B43legacy_DMAIRQ_RX_DONE) {
+ if (b43legacy_using_pio(dev))
+ b43legacy_pio_rx(dev->pio.queue3);
+ else
+ b43legacy_dma_rx(dev->dma.rx_ring3);
+ }
+ B43legacy_WARN_ON(dma_reason[4] & B43legacy_DMAIRQ_RX_DONE);
+ B43legacy_WARN_ON(dma_reason[5] & B43legacy_DMAIRQ_RX_DONE);
+
+ if (reason & B43legacy_IRQ_TX_OK)
+ handle_irq_transmit_status(dev);
+
+ b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask);
+ mmiowb();
+ spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
+}
+
+static void pio_irq_workaround(struct b43legacy_wldev *dev,
+ u16 base, int queueidx)
+{
+ u16 rxctl;
+
+ rxctl = b43legacy_read16(dev, base + B43legacy_PIO_RXCTL);
+ if (rxctl & B43legacy_PIO_RXCTL_DATAAVAILABLE)
+ dev->dma_reason[queueidx] |= B43legacy_DMAIRQ_RX_DONE;
+ else
+ dev->dma_reason[queueidx] &= ~B43legacy_DMAIRQ_RX_DONE;
+}
+
+static void b43legacy_interrupt_ack(struct b43legacy_wldev *dev, u32 reason)
+{
+ if (b43legacy_using_pio(dev) &&
+ (dev->dev->id.revision < 3) &&
+ (!(reason & B43legacy_IRQ_PIO_WORKAROUND))) {
+ /* Apply a PIO specific workaround to the dma_reasons */
+ pio_irq_workaround(dev, B43legacy_MMIO_PIO1_BASE, 0);
+ pio_irq_workaround(dev, B43legacy_MMIO_PIO2_BASE, 1);
+ pio_irq_workaround(dev, B43legacy_MMIO_PIO3_BASE, 2);
+ pio_irq_workaround(dev, B43legacy_MMIO_PIO4_BASE, 3);
+ }
+
+ b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON, reason);
+
+ b43legacy_write32(dev, B43legacy_MMIO_DMA0_REASON,
+ dev->dma_reason[0]);
+ b43legacy_write32(dev, B43legacy_MMIO_DMA1_REASON,
+ dev->dma_reason[1]);
+ b43legacy_write32(dev, B43legacy_MMIO_DMA2_REASON,
+ dev->dma_reason[2]);
+ b43legacy_write32(dev, B43legacy_MMIO_DMA3_REASON,
+ dev->dma_reason[3]);
+ b43legacy_write32(dev, B43legacy_MMIO_DMA4_REASON,
+ dev->dma_reason[4]);
+ b43legacy_write32(dev, B43legacy_MMIO_DMA5_REASON,
+ dev->dma_reason[5]);
+}
+
+/* Interrupt handler top-half */
+static irqreturn_t b43legacy_interrupt_handler(int irq, void *dev_id)
+{
+ irqreturn_t ret = IRQ_NONE;
+ struct b43legacy_wldev *dev = dev_id;
+ u32 reason;
+
+ B43legacy_WARN_ON(!dev);
+
+ spin_lock(&dev->wl->irq_lock);
+
+ if (unlikely(b43legacy_status(dev) < B43legacy_STAT_STARTED))
+ /* This can only happen on shared IRQ lines. */
+ goto out;
+ reason = b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
+ if (reason == 0xffffffff) /* shared IRQ */
+ goto out;
+ ret = IRQ_HANDLED;
+ reason &= dev->irq_mask;
+ if (!reason)
+ goto out;
+
+ dev->dma_reason[0] = b43legacy_read32(dev,
+ B43legacy_MMIO_DMA0_REASON)
+ & 0x0001DC00;
+ dev->dma_reason[1] = b43legacy_read32(dev,
+ B43legacy_MMIO_DMA1_REASON)
+ & 0x0000DC00;
+ dev->dma_reason[2] = b43legacy_read32(dev,
+ B43legacy_MMIO_DMA2_REASON)
+ & 0x0000DC00;
+ dev->dma_reason[3] = b43legacy_read32(dev,
+ B43legacy_MMIO_DMA3_REASON)
+ & 0x0001DC00;
+ dev->dma_reason[4] = b43legacy_read32(dev,
+ B43legacy_MMIO_DMA4_REASON)
+ & 0x0000DC00;
+ dev->dma_reason[5] = b43legacy_read32(dev,
+ B43legacy_MMIO_DMA5_REASON)
+ & 0x0000DC00;
+
+ b43legacy_interrupt_ack(dev, reason);
+ /* Disable all IRQs. They are enabled again in the bottom half. */
+ b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
+ /* Save the reason code and call our bottom half. */
+ dev->irq_reason = reason;
+ tasklet_schedule(&dev->isr_tasklet);
+out:
+ mmiowb();
+ spin_unlock(&dev->wl->irq_lock);
+
+ return ret;
+}
+
+static void b43legacy_release_firmware(struct b43legacy_wldev *dev)
+{
+ release_firmware(dev->fw.ucode);
+ dev->fw.ucode = NULL;
+ release_firmware(dev->fw.pcm);
+ dev->fw.pcm = NULL;
+ release_firmware(dev->fw.initvals);
+ dev->fw.initvals = NULL;
+ release_firmware(dev->fw.initvals_band);
+ dev->fw.initvals_band = NULL;
+}
+
+static void b43legacy_print_fw_helptext(struct b43legacy_wl *wl)
+{
+ b43legacyerr(wl, "You must go to http://wireless.kernel.org/en/users/"
+ "Drivers/b43#devicefirmware "
+ "and download the correct firmware (version 3).\n");
+}
+
+static void b43legacy_fw_cb(const struct firmware *firmware, void *context)
+{
+ struct b43legacy_wldev *dev = context;
+
+ dev->fwp = firmware;
+ complete(&dev->fw_load_complete);
+}
+
+static int do_request_fw(struct b43legacy_wldev *dev,
+ const char *name,
+ const struct firmware **fw, bool async)
+{
+ char path[sizeof(modparam_fwpostfix) + 32];
+ struct b43legacy_fw_header *hdr;
+ u32 size;
+ int err;
+
+ if (!name)
+ return 0;
+
+ snprintf(path, ARRAY_SIZE(path),
+ "b43legacy%s/%s.fw",
+ modparam_fwpostfix, name);
+ b43legacyinfo(dev->wl, "Loading firmware %s\n", path);
+ if (async) {
+ init_completion(&dev->fw_load_complete);
+ err = request_firmware_nowait(THIS_MODULE, 1, path,
+ dev->dev->dev, GFP_KERNEL,
+ dev, b43legacy_fw_cb);
+ if (err) {
+ b43legacyerr(dev->wl, "Unable to load firmware\n");
+ return err;
+ }
+ /* stall here until fw ready */
+ wait_for_completion(&dev->fw_load_complete);
+ if (!dev->fwp)
+ err = -EINVAL;
+ *fw = dev->fwp;
+ } else {
+ err = request_firmware(fw, path, dev->dev->dev);
+ }
+ if (err) {
+ b43legacyerr(dev->wl, "Firmware file \"%s\" not found "
+ "or load failed.\n", path);
+ return err;
+ }
+ if ((*fw)->size < sizeof(struct b43legacy_fw_header))
+ goto err_format;
+ hdr = (struct b43legacy_fw_header *)((*fw)->data);
+ switch (hdr->type) {
+ case B43legacy_FW_TYPE_UCODE:
+ case B43legacy_FW_TYPE_PCM:
+ size = be32_to_cpu(hdr->size);
+ if (size != (*fw)->size - sizeof(struct b43legacy_fw_header))
+ goto err_format;
+ /* fallthrough */
+ case B43legacy_FW_TYPE_IV:
+ if (hdr->ver != 1)
+ goto err_format;
+ break;
+ default:
+ goto err_format;
+ }
+
+ return err;
+
+err_format:
+ b43legacyerr(dev->wl, "Firmware file \"%s\" format error.\n", path);
+ return -EPROTO;
+}
+
+static int b43legacy_one_core_attach(struct ssb_device *dev,
+ struct b43legacy_wl *wl);
+static void b43legacy_one_core_detach(struct ssb_device *dev);
+
+static void b43legacy_request_firmware(struct work_struct *work)
+{
+ struct b43legacy_wl *wl = container_of(work,
+ struct b43legacy_wl, firmware_load);
+ struct b43legacy_wldev *dev = wl->current_dev;
+ struct b43legacy_firmware *fw = &dev->fw;
+ const u8 rev = dev->dev->id.revision;
+ const char *filename;
+ int err;
+
+ if (!fw->ucode) {
+ if (rev == 2)
+ filename = "ucode2";
+ else if (rev == 4)
+ filename = "ucode4";
+ else
+ filename = "ucode5";
+ err = do_request_fw(dev, filename, &fw->ucode, true);
+ if (err)
+ goto err_load;
+ }
+ if (!fw->pcm) {
+ if (rev < 5)
+ filename = "pcm4";
+ else
+ filename = "pcm5";
+ err = do_request_fw(dev, filename, &fw->pcm, false);
+ if (err)
+ goto err_load;
+ }
+ if (!fw->initvals) {
+ switch (dev->phy.type) {
+ case B43legacy_PHYTYPE_B:
+ case B43legacy_PHYTYPE_G:
+ if ((rev >= 5) && (rev <= 10))
+ filename = "b0g0initvals5";
+ else if (rev == 2 || rev == 4)
+ filename = "b0g0initvals2";
+ else
+ goto err_no_initvals;
+ break;
+ default:
+ goto err_no_initvals;
+ }
+ err = do_request_fw(dev, filename, &fw->initvals, false);
+ if (err)
+ goto err_load;
+ }
+ if (!fw->initvals_band) {
+ switch (dev->phy.type) {
+ case B43legacy_PHYTYPE_B:
+ case B43legacy_PHYTYPE_G:
+ if ((rev >= 5) && (rev <= 10))
+ filename = "b0g0bsinitvals5";
+ else if (rev >= 11)
+ filename = NULL;
+ else if (rev == 2 || rev == 4)
+ filename = NULL;
+ else
+ goto err_no_initvals;
+ break;
+ default:
+ goto err_no_initvals;
+ }
+ err = do_request_fw(dev, filename, &fw->initvals_band, false);
+ if (err)
+ goto err_load;
+ }
+ err = ieee80211_register_hw(wl->hw);
+ if (err)
+ goto err_one_core_detach;
+ return;
+
+err_one_core_detach:
+ b43legacy_one_core_detach(dev->dev);
+ goto error;
+
+err_load:
+ b43legacy_print_fw_helptext(dev->wl);
+ goto error;
+
+err_no_initvals:
+ err = -ENODEV;
+ b43legacyerr(dev->wl, "No Initial Values firmware file for PHY %u, "
+ "core rev %u\n", dev->phy.type, rev);
+ goto error;
+
+error:
+ b43legacy_release_firmware(dev);
+ return;
+}
+
+static int b43legacy_upload_microcode(struct b43legacy_wldev *dev)
+{
+ struct wiphy *wiphy = dev->wl->hw->wiphy;
+ const size_t hdr_len = sizeof(struct b43legacy_fw_header);
+ const __be32 *data;
+ unsigned int i;
+ unsigned int len;
+ u16 fwrev;
+ u16 fwpatch;
+ u16 fwdate;
+ u16 fwtime;
+ u32 tmp, macctl;
+ int err = 0;
+
+ /* Jump the microcode PSM to offset 0 */
+ macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
+ B43legacy_WARN_ON(macctl & B43legacy_MACCTL_PSM_RUN);
+ macctl |= B43legacy_MACCTL_PSM_JMP0;
+ b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
+ /* Zero out all microcode PSM registers and shared memory. */
+ for (i = 0; i < 64; i++)
+ b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, i, 0);
+ for (i = 0; i < 4096; i += 2)
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, i, 0);
+
+ /* Upload Microcode. */
+ data = (__be32 *) (dev->fw.ucode->data + hdr_len);
+ len = (dev->fw.ucode->size - hdr_len) / sizeof(__be32);
+ b43legacy_shm_control_word(dev,
+ B43legacy_SHM_UCODE |
+ B43legacy_SHM_AUTOINC_W,
+ 0x0000);
+ for (i = 0; i < len; i++) {
+ b43legacy_write32(dev, B43legacy_MMIO_SHM_DATA,
+ be32_to_cpu(data[i]));
+ udelay(10);
+ }
+
+ if (dev->fw.pcm) {
+ /* Upload PCM data. */
+ data = (__be32 *) (dev->fw.pcm->data + hdr_len);
+ len = (dev->fw.pcm->size - hdr_len) / sizeof(__be32);
+ b43legacy_shm_control_word(dev, B43legacy_SHM_HW, 0x01EA);
+ b43legacy_write32(dev, B43legacy_MMIO_SHM_DATA, 0x00004000);
+ /* No need for autoinc bit in SHM_HW */
+ b43legacy_shm_control_word(dev, B43legacy_SHM_HW, 0x01EB);
+ for (i = 0; i < len; i++) {
+ b43legacy_write32(dev, B43legacy_MMIO_SHM_DATA,
+ be32_to_cpu(data[i]));
+ udelay(10);
+ }
+ }
+
+ b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON,
+ B43legacy_IRQ_ALL);
+
+ /* Start the microcode PSM */
+ macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
+ macctl &= ~B43legacy_MACCTL_PSM_JMP0;
+ macctl |= B43legacy_MACCTL_PSM_RUN;
+ b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
+
+ /* Wait for the microcode to load and respond */
+ i = 0;
+ while (1) {
+ tmp = b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
+ if (tmp == B43legacy_IRQ_MAC_SUSPENDED)
+ break;
+ i++;
+ if (i >= B43legacy_IRQWAIT_MAX_RETRIES) {
+ b43legacyerr(dev->wl, "Microcode not responding\n");
+ b43legacy_print_fw_helptext(dev->wl);
+ err = -ENODEV;
+ goto error;
+ }
+ msleep_interruptible(50);
+ if (signal_pending(current)) {
+ err = -EINTR;
+ goto error;
+ }
+ }
+ /* dummy read follows */
+ b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
+
+ /* Get and check the revisions. */
+ fwrev = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
+ B43legacy_SHM_SH_UCODEREV);
+ fwpatch = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
+ B43legacy_SHM_SH_UCODEPATCH);
+ fwdate = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
+ B43legacy_SHM_SH_UCODEDATE);
+ fwtime = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
+ B43legacy_SHM_SH_UCODETIME);
+
+ if (fwrev > 0x128) {
+ b43legacyerr(dev->wl, "YOU ARE TRYING TO LOAD V4 FIRMWARE."
+ " Only firmware from binary drivers version 3.x"
+ " is supported. You must change your firmware"
+ " files.\n");
+ b43legacy_print_fw_helptext(dev->wl);
+ err = -EOPNOTSUPP;
+ goto error;
+ }
+ b43legacyinfo(dev->wl, "Loading firmware version 0x%X, patch level %u "
+ "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n", fwrev, fwpatch,
+ (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF,
+ (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F,
+ fwtime & 0x1F);
+
+ dev->fw.rev = fwrev;
+ dev->fw.patch = fwpatch;
+
+ snprintf(wiphy->fw_version, sizeof(wiphy->fw_version), "%u.%u",
+ dev->fw.rev, dev->fw.patch);
+ wiphy->hw_version = dev->dev->id.coreid;
+
+ return 0;
+
+error:
+ macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
+ macctl &= ~B43legacy_MACCTL_PSM_RUN;
+ macctl |= B43legacy_MACCTL_PSM_JMP0;
+ b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
+
+ return err;
+}
+
+static int b43legacy_write_initvals(struct b43legacy_wldev *dev,
+ const struct b43legacy_iv *ivals,
+ size_t count,
+ size_t array_size)
+{
+ const struct b43legacy_iv *iv;
+ u16 offset;
+ size_t i;
+ bool bit32;
+
+ BUILD_BUG_ON(sizeof(struct b43legacy_iv) != 6);
+ iv = ivals;
+ for (i = 0; i < count; i++) {
+ if (array_size < sizeof(iv->offset_size))
+ goto err_format;
+ array_size -= sizeof(iv->offset_size);
+ offset = be16_to_cpu(iv->offset_size);
+ bit32 = !!(offset & B43legacy_IV_32BIT);
+ offset &= B43legacy_IV_OFFSET_MASK;
+ if (offset >= 0x1000)
+ goto err_format;
+ if (bit32) {
+ u32 value;
+
+ if (array_size < sizeof(iv->data.d32))
+ goto err_format;
+ array_size -= sizeof(iv->data.d32);
+
+ value = get_unaligned_be32(&iv->data.d32);
+ b43legacy_write32(dev, offset, value);
+
+ iv = (const struct b43legacy_iv *)((const uint8_t *)iv +
+ sizeof(__be16) +
+ sizeof(__be32));
+ } else {
+ u16 value;
+
+ if (array_size < sizeof(iv->data.d16))
+ goto err_format;
+ array_size -= sizeof(iv->data.d16);
+
+ value = be16_to_cpu(iv->data.d16);
+ b43legacy_write16(dev, offset, value);
+
+ iv = (const struct b43legacy_iv *)((const uint8_t *)iv +
+ sizeof(__be16) +
+ sizeof(__be16));
+ }
+ }
+ if (array_size)
+ goto err_format;
+
+ return 0;
+
+err_format:
+ b43legacyerr(dev->wl, "Initial Values Firmware file-format error.\n");
+ b43legacy_print_fw_helptext(dev->wl);
+
+ return -EPROTO;
+}
+
+static int b43legacy_upload_initvals(struct b43legacy_wldev *dev)
+{
+ const size_t hdr_len = sizeof(struct b43legacy_fw_header);
+ const struct b43legacy_fw_header *hdr;
+ struct b43legacy_firmware *fw = &dev->fw;
+ const struct b43legacy_iv *ivals;
+ size_t count;
+ int err;
+
+ hdr = (const struct b43legacy_fw_header *)(fw->initvals->data);
+ ivals = (const struct b43legacy_iv *)(fw->initvals->data + hdr_len);
+ count = be32_to_cpu(hdr->size);
+ err = b43legacy_write_initvals(dev, ivals, count,
+ fw->initvals->size - hdr_len);
+ if (err)
+ goto out;
+ if (fw->initvals_band) {
+ hdr = (const struct b43legacy_fw_header *)
+ (fw->initvals_band->data);
+ ivals = (const struct b43legacy_iv *)(fw->initvals_band->data
+ + hdr_len);
+ count = be32_to_cpu(hdr->size);
+ err = b43legacy_write_initvals(dev, ivals, count,
+ fw->initvals_band->size - hdr_len);
+ if (err)
+ goto out;
+ }
+out:
+
+ return err;
+}
+
+/* Initialize the GPIOs
+ * http://bcm-specs.sipsolutions.net/GPIO
+ */
+static int b43legacy_gpio_init(struct b43legacy_wldev *dev)
+{
+ struct ssb_bus *bus = dev->dev->bus;
+ struct ssb_device *gpiodev, *pcidev = NULL;
+ u32 mask;
+ u32 set;
+
+ b43legacy_write32(dev, B43legacy_MMIO_MACCTL,
+ b43legacy_read32(dev,
+ B43legacy_MMIO_MACCTL)
+ & 0xFFFF3FFF);
+
+ b43legacy_write16(dev, B43legacy_MMIO_GPIO_MASK,
+ b43legacy_read16(dev,
+ B43legacy_MMIO_GPIO_MASK)
+ | 0x000F);
+
+ mask = 0x0000001F;
+ set = 0x0000000F;
+ if (dev->dev->bus->chip_id == 0x4301) {
+ mask |= 0x0060;
+ set |= 0x0060;
+ }
+ if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_PACTRL) {
+ b43legacy_write16(dev, B43legacy_MMIO_GPIO_MASK,
+ b43legacy_read16(dev,
+ B43legacy_MMIO_GPIO_MASK)
+ | 0x0200);
+ mask |= 0x0200;
+ set |= 0x0200;
+ }
+ if (dev->dev->id.revision >= 2)
+ mask |= 0x0010; /* FIXME: This is redundant. */
+
+#ifdef CONFIG_SSB_DRIVER_PCICORE
+ pcidev = bus->pcicore.dev;
+#endif
+ gpiodev = bus->chipco.dev ? : pcidev;
+ if (!gpiodev)
+ return 0;
+ ssb_write32(gpiodev, B43legacy_GPIO_CONTROL,
+ (ssb_read32(gpiodev, B43legacy_GPIO_CONTROL)
+ & ~mask) | set);
+
+ return 0;
+}
+
+/* Turn off all GPIO stuff. Call this on module unload, for example. */
+static void b43legacy_gpio_cleanup(struct b43legacy_wldev *dev)
+{
+ struct ssb_bus *bus = dev->dev->bus;
+ struct ssb_device *gpiodev, *pcidev = NULL;
+
+#ifdef CONFIG_SSB_DRIVER_PCICORE
+ pcidev = bus->pcicore.dev;
+#endif
+ gpiodev = bus->chipco.dev ? : pcidev;
+ if (!gpiodev)
+ return;
+ ssb_write32(gpiodev, B43legacy_GPIO_CONTROL, 0);
+}
+
+/* http://bcm-specs.sipsolutions.net/EnableMac */
+void b43legacy_mac_enable(struct b43legacy_wldev *dev)
+{
+ dev->mac_suspended--;
+ B43legacy_WARN_ON(dev->mac_suspended < 0);
+ B43legacy_WARN_ON(irqs_disabled());
+ if (dev->mac_suspended == 0) {
+ b43legacy_write32(dev, B43legacy_MMIO_MACCTL,
+ b43legacy_read32(dev,
+ B43legacy_MMIO_MACCTL)
+ | B43legacy_MACCTL_ENABLED);
+ b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON,
+ B43legacy_IRQ_MAC_SUSPENDED);
+ /* the next two are dummy reads */
+ b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
+ b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
+ b43legacy_power_saving_ctl_bits(dev, -1, -1);
+
+ /* Re-enable IRQs. */
+ spin_lock_irq(&dev->wl->irq_lock);
+ b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK,
+ dev->irq_mask);
+ spin_unlock_irq(&dev->wl->irq_lock);
+ }
+}
+
+/* http://bcm-specs.sipsolutions.net/SuspendMAC */
+void b43legacy_mac_suspend(struct b43legacy_wldev *dev)
+{
+ int i;
+ u32 tmp;
+
+ might_sleep();
+ B43legacy_WARN_ON(irqs_disabled());
+ B43legacy_WARN_ON(dev->mac_suspended < 0);
+
+ if (dev->mac_suspended == 0) {
+ /* Mask IRQs before suspending MAC. Otherwise
+ * the MAC stays busy and won't suspend. */
+ spin_lock_irq(&dev->wl->irq_lock);
+ b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
+ spin_unlock_irq(&dev->wl->irq_lock);
+ b43legacy_synchronize_irq(dev);
+
+ b43legacy_power_saving_ctl_bits(dev, -1, 1);
+ b43legacy_write32(dev, B43legacy_MMIO_MACCTL,
+ b43legacy_read32(dev,
+ B43legacy_MMIO_MACCTL)
+ & ~B43legacy_MACCTL_ENABLED);
+ b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
+ for (i = 40; i; i--) {
+ tmp = b43legacy_read32(dev,
+ B43legacy_MMIO_GEN_IRQ_REASON);
+ if (tmp & B43legacy_IRQ_MAC_SUSPENDED)
+ goto out;
+ msleep(1);
+ }
+ b43legacyerr(dev->wl, "MAC suspend failed\n");
+ }
+out:
+ dev->mac_suspended++;
+}
+
+static void b43legacy_adjust_opmode(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_wl *wl = dev->wl;
+ u32 ctl;
+ u16 cfp_pretbtt;
+
+ ctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
+ /* Reset status to STA infrastructure mode. */
+ ctl &= ~B43legacy_MACCTL_AP;
+ ctl &= ~B43legacy_MACCTL_KEEP_CTL;
+ ctl &= ~B43legacy_MACCTL_KEEP_BADPLCP;
+ ctl &= ~B43legacy_MACCTL_KEEP_BAD;
+ ctl &= ~B43legacy_MACCTL_PROMISC;
+ ctl &= ~B43legacy_MACCTL_BEACPROMISC;
+ ctl |= B43legacy_MACCTL_INFRA;
+
+ if (b43legacy_is_mode(wl, NL80211_IFTYPE_AP))
+ ctl |= B43legacy_MACCTL_AP;
+ else if (b43legacy_is_mode(wl, NL80211_IFTYPE_ADHOC))
+ ctl &= ~B43legacy_MACCTL_INFRA;
+
+ if (wl->filter_flags & FIF_CONTROL)
+ ctl |= B43legacy_MACCTL_KEEP_CTL;
+ if (wl->filter_flags & FIF_FCSFAIL)
+ ctl |= B43legacy_MACCTL_KEEP_BAD;
+ if (wl->filter_flags & FIF_PLCPFAIL)
+ ctl |= B43legacy_MACCTL_KEEP_BADPLCP;
+ if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC)
+ ctl |= B43legacy_MACCTL_BEACPROMISC;
+
+ /* Workaround: On old hardware the HW-MAC-address-filter
+ * doesn't work properly, so always run promisc in filter
+ * it in software. */
+ if (dev->dev->id.revision <= 4)
+ ctl |= B43legacy_MACCTL_PROMISC;
+
+ b43legacy_write32(dev, B43legacy_MMIO_MACCTL, ctl);
+
+ cfp_pretbtt = 2;
+ if ((ctl & B43legacy_MACCTL_INFRA) &&
+ !(ctl & B43legacy_MACCTL_AP)) {
+ if (dev->dev->bus->chip_id == 0x4306 &&
+ dev->dev->bus->chip_rev == 3)
+ cfp_pretbtt = 100;
+ else
+ cfp_pretbtt = 50;
+ }
+ b43legacy_write16(dev, 0x612, cfp_pretbtt);
+}
+
+static void b43legacy_rate_memory_write(struct b43legacy_wldev *dev,
+ u16 rate,
+ int is_ofdm)
+{
+ u16 offset;
+
+ if (is_ofdm) {
+ offset = 0x480;
+ offset += (b43legacy_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2;
+ } else {
+ offset = 0x4C0;
+ offset += (b43legacy_plcp_get_ratecode_cck(rate) & 0x000F) * 2;
+ }
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, offset + 0x20,
+ b43legacy_shm_read16(dev,
+ B43legacy_SHM_SHARED, offset));
+}
+
+static void b43legacy_rate_memory_init(struct b43legacy_wldev *dev)
+{
+ switch (dev->phy.type) {
+ case B43legacy_PHYTYPE_G:
+ b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_6MB, 1);
+ b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_12MB, 1);
+ b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_18MB, 1);
+ b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_24MB, 1);
+ b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_36MB, 1);
+ b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_48MB, 1);
+ b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_54MB, 1);
+ /* fallthrough */
+ case B43legacy_PHYTYPE_B:
+ b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_1MB, 0);
+ b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_2MB, 0);
+ b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_5MB, 0);
+ b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_11MB, 0);
+ break;
+ default:
+ B43legacy_BUG_ON(1);
+ }
+}
+
+/* Set the TX-Antenna for management frames sent by firmware. */
+static void b43legacy_mgmtframe_txantenna(struct b43legacy_wldev *dev,
+ int antenna)
+{
+ u16 ant = 0;
+ u16 tmp;
+
+ switch (antenna) {
+ case B43legacy_ANTENNA0:
+ ant |= B43legacy_TX4_PHY_ANT0;
+ break;
+ case B43legacy_ANTENNA1:
+ ant |= B43legacy_TX4_PHY_ANT1;
+ break;
+ case B43legacy_ANTENNA_AUTO:
+ ant |= B43legacy_TX4_PHY_ANTLAST;
+ break;
+ default:
+ B43legacy_BUG_ON(1);
+ }
+
+ /* FIXME We also need to set the other flags of the PHY control
+ * field somewhere. */
+
+ /* For Beacons */
+ tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
+ B43legacy_SHM_SH_BEACPHYCTL);
+ tmp = (tmp & ~B43legacy_TX4_PHY_ANT) | ant;
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
+ B43legacy_SHM_SH_BEACPHYCTL, tmp);
+ /* For ACK/CTS */
+ tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
+ B43legacy_SHM_SH_ACKCTSPHYCTL);
+ tmp = (tmp & ~B43legacy_TX4_PHY_ANT) | ant;
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
+ B43legacy_SHM_SH_ACKCTSPHYCTL, tmp);
+ /* For Probe Resposes */
+ tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
+ B43legacy_SHM_SH_PRPHYCTL);
+ tmp = (tmp & ~B43legacy_TX4_PHY_ANT) | ant;
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
+ B43legacy_SHM_SH_PRPHYCTL, tmp);
+}
+
+/* This is the opposite of b43legacy_chip_init() */
+static void b43legacy_chip_exit(struct b43legacy_wldev *dev)
+{
+ b43legacy_radio_turn_off(dev, 1);
+ b43legacy_gpio_cleanup(dev);
+ /* firmware is released later */
+}
+
+/* Initialize the chip
+ * http://bcm-specs.sipsolutions.net/ChipInit
+ */
+static int b43legacy_chip_init(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ int err;
+ int tmp;
+ u32 value32, macctl;
+ u16 value16;
+
+ /* Initialize the MAC control */
+ macctl = B43legacy_MACCTL_IHR_ENABLED | B43legacy_MACCTL_SHM_ENABLED;
+ if (dev->phy.gmode)
+ macctl |= B43legacy_MACCTL_GMODE;
+ macctl |= B43legacy_MACCTL_INFRA;
+ b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
+
+ err = b43legacy_upload_microcode(dev);
+ if (err)
+ goto out; /* firmware is released later */
+
+ err = b43legacy_gpio_init(dev);
+ if (err)
+ goto out; /* firmware is released later */
+
+ err = b43legacy_upload_initvals(dev);
+ if (err)
+ goto err_gpio_clean;
+ b43legacy_radio_turn_on(dev);
+
+ b43legacy_write16(dev, 0x03E6, 0x0000);
+ err = b43legacy_phy_init(dev);
+ if (err)
+ goto err_radio_off;
+
+ /* Select initial Interference Mitigation. */
+ tmp = phy->interfmode;
+ phy->interfmode = B43legacy_INTERFMODE_NONE;
+ b43legacy_radio_set_interference_mitigation(dev, tmp);
+
+ b43legacy_phy_set_antenna_diversity(dev);
+ b43legacy_mgmtframe_txantenna(dev, B43legacy_ANTENNA_DEFAULT);
+
+ if (phy->type == B43legacy_PHYTYPE_B) {
+ value16 = b43legacy_read16(dev, 0x005E);
+ value16 |= 0x0004;
+ b43legacy_write16(dev, 0x005E, value16);
+ }
+ b43legacy_write32(dev, 0x0100, 0x01000000);
+ if (dev->dev->id.revision < 5)
+ b43legacy_write32(dev, 0x010C, 0x01000000);
+
+ value32 = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
+ value32 &= ~B43legacy_MACCTL_INFRA;
+ b43legacy_write32(dev, B43legacy_MMIO_MACCTL, value32);
+ value32 = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
+ value32 |= B43legacy_MACCTL_INFRA;
+ b43legacy_write32(dev, B43legacy_MMIO_MACCTL, value32);
+
+ if (b43legacy_using_pio(dev)) {
+ b43legacy_write32(dev, 0x0210, 0x00000100);
+ b43legacy_write32(dev, 0x0230, 0x00000100);
+ b43legacy_write32(dev, 0x0250, 0x00000100);
+ b43legacy_write32(dev, 0x0270, 0x00000100);
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0034,
+ 0x0000);
+ }
+
+ /* Probe Response Timeout value */
+ /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0074, 0x0000);
+
+ /* Initially set the wireless operation mode. */
+ b43legacy_adjust_opmode(dev);
+
+ if (dev->dev->id.revision < 3) {
+ b43legacy_write16(dev, 0x060E, 0x0000);
+ b43legacy_write16(dev, 0x0610, 0x8000);
+ b43legacy_write16(dev, 0x0604, 0x0000);
+ b43legacy_write16(dev, 0x0606, 0x0200);
+ } else {
+ b43legacy_write32(dev, 0x0188, 0x80000000);
+ b43legacy_write32(dev, 0x018C, 0x02000000);
+ }
+ b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON, 0x00004000);
+ b43legacy_write32(dev, B43legacy_MMIO_DMA0_IRQ_MASK, 0x0001DC00);
+ b43legacy_write32(dev, B43legacy_MMIO_DMA1_IRQ_MASK, 0x0000DC00);
+ b43legacy_write32(dev, B43legacy_MMIO_DMA2_IRQ_MASK, 0x0000DC00);
+ b43legacy_write32(dev, B43legacy_MMIO_DMA3_IRQ_MASK, 0x0001DC00);
+ b43legacy_write32(dev, B43legacy_MMIO_DMA4_IRQ_MASK, 0x0000DC00);
+ b43legacy_write32(dev, B43legacy_MMIO_DMA5_IRQ_MASK, 0x0000DC00);
+
+ value32 = ssb_read32(dev->dev, SSB_TMSLOW);
+ value32 |= B43legacy_TMSLOW_MACPHYCLKEN;
+ ssb_write32(dev->dev, SSB_TMSLOW, value32);
+
+ b43legacy_write16(dev, B43legacy_MMIO_POWERUP_DELAY,
+ dev->dev->bus->chipco.fast_pwrup_delay);
+
+ /* PHY TX errors counter. */
+ atomic_set(&phy->txerr_cnt, B43legacy_PHY_TX_BADNESS_LIMIT);
+
+ B43legacy_WARN_ON(err != 0);
+ b43legacydbg(dev->wl, "Chip initialized\n");
+out:
+ return err;
+
+err_radio_off:
+ b43legacy_radio_turn_off(dev, 1);
+err_gpio_clean:
+ b43legacy_gpio_cleanup(dev);
+ goto out;
+}
+
+static void b43legacy_periodic_every120sec(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+
+ if (phy->type != B43legacy_PHYTYPE_G || phy->rev < 2)
+ return;
+
+ b43legacy_mac_suspend(dev);
+ b43legacy_phy_lo_g_measure(dev);
+ b43legacy_mac_enable(dev);
+}
+
+static void b43legacy_periodic_every60sec(struct b43legacy_wldev *dev)
+{
+ b43legacy_phy_lo_mark_all_unused(dev);
+ if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_RSSI) {
+ b43legacy_mac_suspend(dev);
+ b43legacy_calc_nrssi_slope(dev);
+ b43legacy_mac_enable(dev);
+ }
+}
+
+static void b43legacy_periodic_every30sec(struct b43legacy_wldev *dev)
+{
+ /* Update device statistics. */
+ b43legacy_calculate_link_quality(dev);
+}
+
+static void b43legacy_periodic_every15sec(struct b43legacy_wldev *dev)
+{
+ b43legacy_phy_xmitpower(dev); /* FIXME: unless scanning? */
+
+ atomic_set(&dev->phy.txerr_cnt, B43legacy_PHY_TX_BADNESS_LIMIT);
+ wmb();
+}
+
+static void do_periodic_work(struct b43legacy_wldev *dev)
+{
+ unsigned int state;
+
+ state = dev->periodic_state;
+ if (state % 8 == 0)
+ b43legacy_periodic_every120sec(dev);
+ if (state % 4 == 0)
+ b43legacy_periodic_every60sec(dev);
+ if (state % 2 == 0)
+ b43legacy_periodic_every30sec(dev);
+ b43legacy_periodic_every15sec(dev);
+}
+
+/* Periodic work locking policy:
+ * The whole periodic work handler is protected by
+ * wl->mutex. If another lock is needed somewhere in the
+ * pwork callchain, it's acquired in-place, where it's needed.
+ */
+static void b43legacy_periodic_work_handler(struct work_struct *work)
+{
+ struct b43legacy_wldev *dev = container_of(work, struct b43legacy_wldev,
+ periodic_work.work);
+ struct b43legacy_wl *wl = dev->wl;
+ unsigned long delay;
+
+ mutex_lock(&wl->mutex);
+
+ if (unlikely(b43legacy_status(dev) != B43legacy_STAT_STARTED))
+ goto out;
+ if (b43legacy_debug(dev, B43legacy_DBG_PWORK_STOP))
+ goto out_requeue;
+
+ do_periodic_work(dev);
+
+ dev->periodic_state++;
+out_requeue:
+ if (b43legacy_debug(dev, B43legacy_DBG_PWORK_FAST))
+ delay = msecs_to_jiffies(50);
+ else
+ delay = round_jiffies_relative(HZ * 15);
+ ieee80211_queue_delayed_work(wl->hw, &dev->periodic_work, delay);
+out:
+ mutex_unlock(&wl->mutex);
+}
+
+static void b43legacy_periodic_tasks_setup(struct b43legacy_wldev *dev)
+{
+ struct delayed_work *work = &dev->periodic_work;
+
+ dev->periodic_state = 0;
+ INIT_DELAYED_WORK(work, b43legacy_periodic_work_handler);
+ ieee80211_queue_delayed_work(dev->wl->hw, work, 0);
+}
+
+/* Validate access to the chip (SHM) */
+static int b43legacy_validate_chipaccess(struct b43legacy_wldev *dev)
+{
+ u32 value;
+ u32 shm_backup;
+
+ shm_backup = b43legacy_shm_read32(dev, B43legacy_SHM_SHARED, 0);
+ b43legacy_shm_write32(dev, B43legacy_SHM_SHARED, 0, 0xAA5555AA);
+ if (b43legacy_shm_read32(dev, B43legacy_SHM_SHARED, 0) !=
+ 0xAA5555AA)
+ goto error;
+ b43legacy_shm_write32(dev, B43legacy_SHM_SHARED, 0, 0x55AAAA55);
+ if (b43legacy_shm_read32(dev, B43legacy_SHM_SHARED, 0) !=
+ 0x55AAAA55)
+ goto error;
+ b43legacy_shm_write32(dev, B43legacy_SHM_SHARED, 0, shm_backup);
+
+ value = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
+ if ((value | B43legacy_MACCTL_GMODE) !=
+ (B43legacy_MACCTL_GMODE | B43legacy_MACCTL_IHR_ENABLED))
+ goto error;
+
+ value = b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
+ if (value)
+ goto error;
+
+ return 0;
+error:
+ b43legacyerr(dev->wl, "Failed to validate the chipaccess\n");
+ return -ENODEV;
+}
+
+static void b43legacy_security_init(struct b43legacy_wldev *dev)
+{
+ dev->max_nr_keys = (dev->dev->id.revision >= 5) ? 58 : 20;
+ B43legacy_WARN_ON(dev->max_nr_keys > ARRAY_SIZE(dev->key));
+ dev->ktp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
+ 0x0056);
+ /* KTP is a word address, but we address SHM bytewise.
+ * So multiply by two.
+ */
+ dev->ktp *= 2;
+ if (dev->dev->id.revision >= 5)
+ /* Number of RCMTA address slots */
+ b43legacy_write16(dev, B43legacy_MMIO_RCMTA_COUNT,
+ dev->max_nr_keys - 8);
+}
+
+#ifdef CONFIG_B43LEGACY_HWRNG
+static int b43legacy_rng_read(struct hwrng *rng, u32 *data)
+{
+ struct b43legacy_wl *wl = (struct b43legacy_wl *)rng->priv;
+ unsigned long flags;
+
+ /* Don't take wl->mutex here, as it could deadlock with
+ * hwrng internal locking. It's not needed to take
+ * wl->mutex here, anyway. */
+
+ spin_lock_irqsave(&wl->irq_lock, flags);
+ *data = b43legacy_read16(wl->current_dev, B43legacy_MMIO_RNG);
+ spin_unlock_irqrestore(&wl->irq_lock, flags);
+
+ return (sizeof(u16));
+}
+#endif
+
+static void b43legacy_rng_exit(struct b43legacy_wl *wl)
+{
+#ifdef CONFIG_B43LEGACY_HWRNG
+ if (wl->rng_initialized)
+ hwrng_unregister(&wl->rng);
+#endif
+}
+
+static int b43legacy_rng_init(struct b43legacy_wl *wl)
+{
+ int err = 0;
+
+#ifdef CONFIG_B43LEGACY_HWRNG
+ snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name),
+ "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy));
+ wl->rng.name = wl->rng_name;
+ wl->rng.data_read = b43legacy_rng_read;
+ wl->rng.priv = (unsigned long)wl;
+ wl->rng_initialized = 1;
+ err = hwrng_register(&wl->rng);
+ if (err) {
+ wl->rng_initialized = 0;
+ b43legacyerr(wl, "Failed to register the random "
+ "number generator (%d)\n", err);
+ }
+
+#endif
+ return err;
+}
+
+static void b43legacy_tx_work(struct work_struct *work)
+{
+ struct b43legacy_wl *wl = container_of(work, struct b43legacy_wl,
+ tx_work);
+ struct b43legacy_wldev *dev;
+ struct sk_buff *skb;
+ int queue_num;
+ int err = 0;
+
+ mutex_lock(&wl->mutex);
+ dev = wl->current_dev;
+ if (unlikely(!dev || b43legacy_status(dev) < B43legacy_STAT_STARTED)) {
+ mutex_unlock(&wl->mutex);
+ return;
+ }
+
+ for (queue_num = 0; queue_num < B43legacy_QOS_QUEUE_NUM; queue_num++) {
+ while (skb_queue_len(&wl->tx_queue[queue_num])) {
+ skb = skb_dequeue(&wl->tx_queue[queue_num]);
+ if (b43legacy_using_pio(dev))
+ err = b43legacy_pio_tx(dev, skb);
+ else
+ err = b43legacy_dma_tx(dev, skb);
+ if (err == -ENOSPC) {
+ wl->tx_queue_stopped[queue_num] = 1;
+ ieee80211_stop_queue(wl->hw, queue_num);
+ skb_queue_head(&wl->tx_queue[queue_num], skb);
+ break;
+ }
+ if (unlikely(err))
+ dev_kfree_skb(skb); /* Drop it */
+ err = 0;
+ }
+
+ if (!err)
+ wl->tx_queue_stopped[queue_num] = 0;
+ }
+
+ mutex_unlock(&wl->mutex);
+}
+
+static void b43legacy_op_tx(struct ieee80211_hw *hw,
+ struct ieee80211_tx_control *control,
+ struct sk_buff *skb)
+{
+ struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
+
+ if (unlikely(skb->len < 2 + 2 + 6)) {
+ /* Too short, this can't be a valid frame. */
+ dev_kfree_skb_any(skb);
+ return;
+ }
+ B43legacy_WARN_ON(skb_shinfo(skb)->nr_frags);
+
+ skb_queue_tail(&wl->tx_queue[skb->queue_mapping], skb);
+ if (!wl->tx_queue_stopped[skb->queue_mapping])
+ ieee80211_queue_work(wl->hw, &wl->tx_work);
+ else
+ ieee80211_stop_queue(wl->hw, skb->queue_mapping);
+}
+
+static int b43legacy_op_conf_tx(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif, u16 queue,
+ const struct ieee80211_tx_queue_params *params)
+{
+ return 0;
+}
+
+static int b43legacy_op_get_stats(struct ieee80211_hw *hw,
+ struct ieee80211_low_level_stats *stats)
+{
+ struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
+ unsigned long flags;
+
+ spin_lock_irqsave(&wl->irq_lock, flags);
+ memcpy(stats, &wl->ieee_stats, sizeof(*stats));
+ spin_unlock_irqrestore(&wl->irq_lock, flags);
+
+ return 0;
+}
+
+static const char *phymode_to_string(unsigned int phymode)
+{
+ switch (phymode) {
+ case B43legacy_PHYMODE_B:
+ return "B";
+ case B43legacy_PHYMODE_G:
+ return "G";
+ default:
+ B43legacy_BUG_ON(1);
+ }
+ return "";
+}
+
+static int find_wldev_for_phymode(struct b43legacy_wl *wl,
+ unsigned int phymode,
+ struct b43legacy_wldev **dev,
+ bool *gmode)
+{
+ struct b43legacy_wldev *d;
+
+ list_for_each_entry(d, &wl->devlist, list) {
+ if (d->phy.possible_phymodes & phymode) {
+ /* Ok, this device supports the PHY-mode.
+ * Set the gmode bit. */
+ *gmode = true;
+ *dev = d;
+
+ return 0;
+ }
+ }
+
+ return -ESRCH;
+}
+
+static void b43legacy_put_phy_into_reset(struct b43legacy_wldev *dev)
+{
+ struct ssb_device *sdev = dev->dev;
+ u32 tmslow;
+
+ tmslow = ssb_read32(sdev, SSB_TMSLOW);
+ tmslow &= ~B43legacy_TMSLOW_GMODE;
+ tmslow |= B43legacy_TMSLOW_PHYRESET;
+ tmslow |= SSB_TMSLOW_FGC;
+ ssb_write32(sdev, SSB_TMSLOW, tmslow);
+ msleep(1);
+
+ tmslow = ssb_read32(sdev, SSB_TMSLOW);
+ tmslow &= ~SSB_TMSLOW_FGC;
+ tmslow |= B43legacy_TMSLOW_PHYRESET;
+ ssb_write32(sdev, SSB_TMSLOW, tmslow);
+ msleep(1);
+}
+
+/* Expects wl->mutex locked */
+static int b43legacy_switch_phymode(struct b43legacy_wl *wl,
+ unsigned int new_mode)
+{
+ struct b43legacy_wldev *uninitialized_var(up_dev);
+ struct b43legacy_wldev *down_dev;
+ int err;
+ bool gmode = false;
+ int prev_status;
+
+ err = find_wldev_for_phymode(wl, new_mode, &up_dev, &gmode);
+ if (err) {
+ b43legacyerr(wl, "Could not find a device for %s-PHY mode\n",
+ phymode_to_string(new_mode));
+ return err;
+ }
+ if ((up_dev == wl->current_dev) &&
+ (!!wl->current_dev->phy.gmode == !!gmode))
+ /* This device is already running. */
+ return 0;
+ b43legacydbg(wl, "Reconfiguring PHYmode to %s-PHY\n",
+ phymode_to_string(new_mode));
+ down_dev = wl->current_dev;
+
+ prev_status = b43legacy_status(down_dev);
+ /* Shutdown the currently running core. */
+ if (prev_status >= B43legacy_STAT_STARTED)
+ b43legacy_wireless_core_stop(down_dev);
+ if (prev_status >= B43legacy_STAT_INITIALIZED)
+ b43legacy_wireless_core_exit(down_dev);
+
+ if (down_dev != up_dev)
+ /* We switch to a different core, so we put PHY into
+ * RESET on the old core. */
+ b43legacy_put_phy_into_reset(down_dev);
+
+ /* Now start the new core. */
+ up_dev->phy.gmode = gmode;
+ if (prev_status >= B43legacy_STAT_INITIALIZED) {
+ err = b43legacy_wireless_core_init(up_dev);
+ if (err) {
+ b43legacyerr(wl, "Fatal: Could not initialize device"
+ " for newly selected %s-PHY mode\n",
+ phymode_to_string(new_mode));
+ goto init_failure;
+ }
+ }
+ if (prev_status >= B43legacy_STAT_STARTED) {
+ err = b43legacy_wireless_core_start(up_dev);
+ if (err) {
+ b43legacyerr(wl, "Fatal: Could not start device for "
+ "newly selected %s-PHY mode\n",
+ phymode_to_string(new_mode));
+ b43legacy_wireless_core_exit(up_dev);
+ goto init_failure;
+ }
+ }
+ B43legacy_WARN_ON(b43legacy_status(up_dev) != prev_status);
+
+ b43legacy_shm_write32(up_dev, B43legacy_SHM_SHARED, 0x003E, 0);
+
+ wl->current_dev = up_dev;
+
+ return 0;
+init_failure:
+ /* Whoops, failed to init the new core. No core is operating now. */
+ wl->current_dev = NULL;
+ return err;
+}
+
+/* Write the short and long frame retry limit values. */
+static void b43legacy_set_retry_limits(struct b43legacy_wldev *dev,
+ unsigned int short_retry,
+ unsigned int long_retry)
+{
+ /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing
+ * the chip-internal counter. */
+ short_retry = min(short_retry, (unsigned int)0xF);
+ long_retry = min(long_retry, (unsigned int)0xF);
+
+ b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0006, short_retry);
+ b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0007, long_retry);
+}
+
+static int b43legacy_op_dev_config(struct ieee80211_hw *hw,
+ u32 changed)
+{
+ struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
+ struct b43legacy_wldev *dev;
+ struct b43legacy_phy *phy;
+ struct ieee80211_conf *conf = &hw->conf;
+ unsigned long flags;
+ unsigned int new_phymode = 0xFFFF;
+ int antenna_tx;
+ int err = 0;
+
+ antenna_tx = B43legacy_ANTENNA_DEFAULT;
+
+ mutex_lock(&wl->mutex);
+ dev = wl->current_dev;
+ phy = &dev->phy;
+
+ if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
+ b43legacy_set_retry_limits(dev,
+ conf->short_frame_max_tx_count,
+ conf->long_frame_max_tx_count);
+ changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS;
+ if (!changed)
+ goto out_unlock_mutex;
+
+ /* Switch the PHY mode (if necessary). */
+ switch (conf->chandef.chan->band) {
+ case IEEE80211_BAND_2GHZ:
+ if (phy->type == B43legacy_PHYTYPE_B)
+ new_phymode = B43legacy_PHYMODE_B;
+ else
+ new_phymode = B43legacy_PHYMODE_G;
+ break;
+ default:
+ B43legacy_WARN_ON(1);
+ }
+ err = b43legacy_switch_phymode(wl, new_phymode);
+ if (err)
+ goto out_unlock_mutex;
+
+ /* Disable IRQs while reconfiguring the device.
+ * This makes it possible to drop the spinlock throughout
+ * the reconfiguration process. */
+ spin_lock_irqsave(&wl->irq_lock, flags);
+ if (b43legacy_status(dev) < B43legacy_STAT_STARTED) {
+ spin_unlock_irqrestore(&wl->irq_lock, flags);
+ goto out_unlock_mutex;
+ }
+ b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
+ spin_unlock_irqrestore(&wl->irq_lock, flags);
+ b43legacy_synchronize_irq(dev);
+
+ /* Switch to the requested channel.
+ * The firmware takes care of races with the TX handler. */
+ if (conf->chandef.chan->hw_value != phy->channel)
+ b43legacy_radio_selectchannel(dev, conf->chandef.chan->hw_value,
+ 0);
+
+ dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_MONITOR);
+
+ /* Adjust the desired TX power level. */
+ if (conf->power_level != 0) {
+ if (conf->power_level != phy->power_level) {
+ phy->power_level = conf->power_level;
+ b43legacy_phy_xmitpower(dev);
+ }
+ }
+
+ /* Antennas for RX and management frame TX. */
+ b43legacy_mgmtframe_txantenna(dev, antenna_tx);
+
+ if (wl->radio_enabled != phy->radio_on) {
+ if (wl->radio_enabled) {
+ b43legacy_radio_turn_on(dev);
+ b43legacyinfo(dev->wl, "Radio turned on by software\n");
+ if (!dev->radio_hw_enable)
+ b43legacyinfo(dev->wl, "The hardware RF-kill"
+ " button still turns the radio"
+ " physically off. Press the"
+ " button to turn it on.\n");
+ } else {
+ b43legacy_radio_turn_off(dev, 0);
+ b43legacyinfo(dev->wl, "Radio turned off by"
+ " software\n");
+ }
+ }
+
+ spin_lock_irqsave(&wl->irq_lock, flags);
+ b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask);
+ mmiowb();
+ spin_unlock_irqrestore(&wl->irq_lock, flags);
+out_unlock_mutex:
+ mutex_unlock(&wl->mutex);
+
+ return err;
+}
+
+static void b43legacy_update_basic_rates(struct b43legacy_wldev *dev, u32 brates)
+{
+ struct ieee80211_supported_band *sband =
+ dev->wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ];
+ struct ieee80211_rate *rate;
+ int i;
+ u16 basic, direct, offset, basic_offset, rateptr;
+
+ for (i = 0; i < sband->n_bitrates; i++) {
+ rate = &sband->bitrates[i];
+
+ if (b43legacy_is_cck_rate(rate->hw_value)) {
+ direct = B43legacy_SHM_SH_CCKDIRECT;
+ basic = B43legacy_SHM_SH_CCKBASIC;
+ offset = b43legacy_plcp_get_ratecode_cck(rate->hw_value);
+ offset &= 0xF;
+ } else {
+ direct = B43legacy_SHM_SH_OFDMDIRECT;
+ basic = B43legacy_SHM_SH_OFDMBASIC;
+ offset = b43legacy_plcp_get_ratecode_ofdm(rate->hw_value);
+ offset &= 0xF;
+ }
+
+ rate = ieee80211_get_response_rate(sband, brates, rate->bitrate);
+
+ if (b43legacy_is_cck_rate(rate->hw_value)) {
+ basic_offset = b43legacy_plcp_get_ratecode_cck(rate->hw_value);
+ basic_offset &= 0xF;
+ } else {
+ basic_offset = b43legacy_plcp_get_ratecode_ofdm(rate->hw_value);
+ basic_offset &= 0xF;
+ }
+
+ /*
+ * Get the pointer that we need to point to
+ * from the direct map
+ */
+ rateptr = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
+ direct + 2 * basic_offset);
+ /* and write it to the basic map */
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
+ basic + 2 * offset, rateptr);
+ }
+}
+
+static void b43legacy_op_bss_info_changed(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *conf,
+ u32 changed)
+{
+ struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
+ struct b43legacy_wldev *dev;
+ unsigned long flags;
+
+ mutex_lock(&wl->mutex);
+ B43legacy_WARN_ON(wl->vif != vif);
+
+ dev = wl->current_dev;
+
+ /* Disable IRQs while reconfiguring the device.
+ * This makes it possible to drop the spinlock throughout
+ * the reconfiguration process. */
+ spin_lock_irqsave(&wl->irq_lock, flags);
+ if (b43legacy_status(dev) < B43legacy_STAT_STARTED) {
+ spin_unlock_irqrestore(&wl->irq_lock, flags);
+ goto out_unlock_mutex;
+ }
+ b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
+
+ if (changed & BSS_CHANGED_BSSID) {
+ b43legacy_synchronize_irq(dev);
+
+ if (conf->bssid)
+ memcpy(wl->bssid, conf->bssid, ETH_ALEN);
+ else
+ eth_zero_addr(wl->bssid);
+ }
+
+ if (b43legacy_status(dev) >= B43legacy_STAT_INITIALIZED) {
+ if (changed & BSS_CHANGED_BEACON &&
+ (b43legacy_is_mode(wl, NL80211_IFTYPE_AP) ||
+ b43legacy_is_mode(wl, NL80211_IFTYPE_ADHOC)))
+ b43legacy_update_templates(wl);
+
+ if (changed & BSS_CHANGED_BSSID)
+ b43legacy_write_mac_bssid_templates(dev);
+ }
+ spin_unlock_irqrestore(&wl->irq_lock, flags);
+
+ b43legacy_mac_suspend(dev);
+
+ if (changed & BSS_CHANGED_BEACON_INT &&
+ (b43legacy_is_mode(wl, NL80211_IFTYPE_AP) ||
+ b43legacy_is_mode(wl, NL80211_IFTYPE_ADHOC)))
+ b43legacy_set_beacon_int(dev, conf->beacon_int);
+
+ if (changed & BSS_CHANGED_BASIC_RATES)
+ b43legacy_update_basic_rates(dev, conf->basic_rates);
+
+ if (changed & BSS_CHANGED_ERP_SLOT) {
+ if (conf->use_short_slot)
+ b43legacy_short_slot_timing_enable(dev);
+ else
+ b43legacy_short_slot_timing_disable(dev);
+ }
+
+ b43legacy_mac_enable(dev);
+
+ spin_lock_irqsave(&wl->irq_lock, flags);
+ b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask);
+ /* XXX: why? */
+ mmiowb();
+ spin_unlock_irqrestore(&wl->irq_lock, flags);
+ out_unlock_mutex:
+ mutex_unlock(&wl->mutex);
+}
+
+static void b43legacy_op_configure_filter(struct ieee80211_hw *hw,
+ unsigned int changed,
+ unsigned int *fflags,u64 multicast)
+{
+ struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
+ struct b43legacy_wldev *dev = wl->current_dev;
+ unsigned long flags;
+
+ if (!dev) {
+ *fflags = 0;
+ return;
+ }
+
+ spin_lock_irqsave(&wl->irq_lock, flags);
+ *fflags &= FIF_ALLMULTI |
+ FIF_FCSFAIL |
+ FIF_PLCPFAIL |
+ FIF_CONTROL |
+ FIF_OTHER_BSS |
+ FIF_BCN_PRBRESP_PROMISC;
+
+ changed &= FIF_ALLMULTI |
+ FIF_FCSFAIL |
+ FIF_PLCPFAIL |
+ FIF_CONTROL |
+ FIF_OTHER_BSS |
+ FIF_BCN_PRBRESP_PROMISC;
+
+ wl->filter_flags = *fflags;
+
+ if (changed && b43legacy_status(dev) >= B43legacy_STAT_INITIALIZED)
+ b43legacy_adjust_opmode(dev);
+ spin_unlock_irqrestore(&wl->irq_lock, flags);
+}
+
+/* Locking: wl->mutex */
+static void b43legacy_wireless_core_stop(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_wl *wl = dev->wl;
+ unsigned long flags;
+ int queue_num;
+
+ if (b43legacy_status(dev) < B43legacy_STAT_STARTED)
+ return;
+
+ /* Disable and sync interrupts. We must do this before than
+ * setting the status to INITIALIZED, as the interrupt handler
+ * won't care about IRQs then. */
+ spin_lock_irqsave(&wl->irq_lock, flags);
+ b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
+ b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_MASK); /* flush */
+ spin_unlock_irqrestore(&wl->irq_lock, flags);
+ b43legacy_synchronize_irq(dev);
+
+ b43legacy_set_status(dev, B43legacy_STAT_INITIALIZED);
+
+ mutex_unlock(&wl->mutex);
+ /* Must unlock as it would otherwise deadlock. No races here.
+ * Cancel the possibly running self-rearming periodic work. */
+ cancel_delayed_work_sync(&dev->periodic_work);
+ cancel_work_sync(&wl->tx_work);
+ mutex_lock(&wl->mutex);
+
+ /* Drain all TX queues. */
+ for (queue_num = 0; queue_num < B43legacy_QOS_QUEUE_NUM; queue_num++) {
+ while (skb_queue_len(&wl->tx_queue[queue_num]))
+ dev_kfree_skb(skb_dequeue(&wl->tx_queue[queue_num]));
+ }
+
+b43legacy_mac_suspend(dev);
+ free_irq(dev->dev->irq, dev);
+ b43legacydbg(wl, "Wireless interface stopped\n");
+}
+
+/* Locking: wl->mutex */
+static int b43legacy_wireless_core_start(struct b43legacy_wldev *dev)
+{
+ int err;
+
+ B43legacy_WARN_ON(b43legacy_status(dev) != B43legacy_STAT_INITIALIZED);
+
+ drain_txstatus_queue(dev);
+ err = request_irq(dev->dev->irq, b43legacy_interrupt_handler,
+ IRQF_SHARED, KBUILD_MODNAME, dev);
+ if (err) {
+ b43legacyerr(dev->wl, "Cannot request IRQ-%d\n",
+ dev->dev->irq);
+ goto out;
+ }
+ /* We are ready to run. */
+ ieee80211_wake_queues(dev->wl->hw);
+ b43legacy_set_status(dev, B43legacy_STAT_STARTED);
+
+ /* Start data flow (TX/RX) */
+ b43legacy_mac_enable(dev);
+ b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask);
+
+ /* Start maintenance work */
+ b43legacy_periodic_tasks_setup(dev);
+
+ b43legacydbg(dev->wl, "Wireless interface started\n");
+out:
+ return err;
+}
+
+/* Get PHY and RADIO versioning numbers */
+static int b43legacy_phy_versioning(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u32 tmp;
+ u8 analog_type;
+ u8 phy_type;
+ u8 phy_rev;
+ u16 radio_manuf;
+ u16 radio_ver;
+ u16 radio_rev;
+ int unsupported = 0;
+
+ /* Get PHY versioning */
+ tmp = b43legacy_read16(dev, B43legacy_MMIO_PHY_VER);
+ analog_type = (tmp & B43legacy_PHYVER_ANALOG)
+ >> B43legacy_PHYVER_ANALOG_SHIFT;
+ phy_type = (tmp & B43legacy_PHYVER_TYPE) >> B43legacy_PHYVER_TYPE_SHIFT;
+ phy_rev = (tmp & B43legacy_PHYVER_VERSION);
+ switch (phy_type) {
+ case B43legacy_PHYTYPE_B:
+ if (phy_rev != 2 && phy_rev != 4
+ && phy_rev != 6 && phy_rev != 7)
+ unsupported = 1;
+ break;
+ case B43legacy_PHYTYPE_G:
+ if (phy_rev > 8)
+ unsupported = 1;
+ break;
+ default:
+ unsupported = 1;
+ }
+ if (unsupported) {
+ b43legacyerr(dev->wl, "FOUND UNSUPPORTED PHY "
+ "(Analog %u, Type %u, Revision %u)\n",
+ analog_type, phy_type, phy_rev);
+ return -EOPNOTSUPP;
+ }
+ b43legacydbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n",
+ analog_type, phy_type, phy_rev);
+
+
+ /* Get RADIO versioning */
+ if (dev->dev->bus->chip_id == 0x4317) {
+ if (dev->dev->bus->chip_rev == 0)
+ tmp = 0x3205017F;
+ else if (dev->dev->bus->chip_rev == 1)
+ tmp = 0x4205017F;
+ else
+ tmp = 0x5205017F;
+ } else {
+ b43legacy_write16(dev, B43legacy_MMIO_RADIO_CONTROL,
+ B43legacy_RADIOCTL_ID);
+ tmp = b43legacy_read16(dev, B43legacy_MMIO_RADIO_DATA_HIGH);
+ tmp <<= 16;
+ b43legacy_write16(dev, B43legacy_MMIO_RADIO_CONTROL,
+ B43legacy_RADIOCTL_ID);
+ tmp |= b43legacy_read16(dev, B43legacy_MMIO_RADIO_DATA_LOW);
+ }
+ radio_manuf = (tmp & 0x00000FFF);
+ radio_ver = (tmp & 0x0FFFF000) >> 12;
+ radio_rev = (tmp & 0xF0000000) >> 28;
+ switch (phy_type) {
+ case B43legacy_PHYTYPE_B:
+ if ((radio_ver & 0xFFF0) != 0x2050)
+ unsupported = 1;
+ break;
+ case B43legacy_PHYTYPE_G:
+ if (radio_ver != 0x2050)
+ unsupported = 1;
+ break;
+ default:
+ B43legacy_BUG_ON(1);
+ }
+ if (unsupported) {
+ b43legacyerr(dev->wl, "FOUND UNSUPPORTED RADIO "
+ "(Manuf 0x%X, Version 0x%X, Revision %u)\n",
+ radio_manuf, radio_ver, radio_rev);
+ return -EOPNOTSUPP;
+ }
+ b43legacydbg(dev->wl, "Found Radio: Manuf 0x%X, Version 0x%X,"
+ " Revision %u\n", radio_manuf, radio_ver, radio_rev);
+
+
+ phy->radio_manuf = radio_manuf;
+ phy->radio_ver = radio_ver;
+ phy->radio_rev = radio_rev;
+
+ phy->analog = analog_type;
+ phy->type = phy_type;
+ phy->rev = phy_rev;
+
+ return 0;
+}
+
+static void setup_struct_phy_for_init(struct b43legacy_wldev *dev,
+ struct b43legacy_phy *phy)
+{
+ struct b43legacy_lopair *lo;
+ int i;
+
+ memset(phy->minlowsig, 0xFF, sizeof(phy->minlowsig));
+ memset(phy->minlowsigpos, 0, sizeof(phy->minlowsigpos));
+
+ /* Assume the radio is enabled. If it's not enabled, the state will
+ * immediately get fixed on the first periodic work run. */
+ dev->radio_hw_enable = true;
+
+ phy->savedpctlreg = 0xFFFF;
+ phy->aci_enable = false;
+ phy->aci_wlan_automatic = false;
+ phy->aci_hw_rssi = false;
+
+ lo = phy->_lo_pairs;
+ if (lo)
+ memset(lo, 0, sizeof(struct b43legacy_lopair) *
+ B43legacy_LO_COUNT);
+ phy->max_lb_gain = 0;
+ phy->trsw_rx_gain = 0;
+
+ /* Set default attenuation values. */
+ phy->bbatt = b43legacy_default_baseband_attenuation(dev);
+ phy->rfatt = b43legacy_default_radio_attenuation(dev);
+ phy->txctl1 = b43legacy_default_txctl1(dev);
+ phy->txpwr_offset = 0;
+
+ /* NRSSI */
+ phy->nrssislope = 0;
+ for (i = 0; i < ARRAY_SIZE(phy->nrssi); i++)
+ phy->nrssi[i] = -1000;
+ for (i = 0; i < ARRAY_SIZE(phy->nrssi_lt); i++)
+ phy->nrssi_lt[i] = i;
+
+ phy->lofcal = 0xFFFF;
+ phy->initval = 0xFFFF;
+
+ phy->interfmode = B43legacy_INTERFMODE_NONE;
+ phy->channel = 0xFF;
+}
+
+static void setup_struct_wldev_for_init(struct b43legacy_wldev *dev)
+{
+ /* Flags */
+ dev->dfq_valid = false;
+
+ /* Stats */
+ memset(&dev->stats, 0, sizeof(dev->stats));
+
+ setup_struct_phy_for_init(dev, &dev->phy);
+
+ /* IRQ related flags */
+ dev->irq_reason = 0;
+ memset(dev->dma_reason, 0, sizeof(dev->dma_reason));
+ dev->irq_mask = B43legacy_IRQ_MASKTEMPLATE;
+
+ dev->mac_suspended = 1;
+
+ /* Noise calculation context */
+ memset(&dev->noisecalc, 0, sizeof(dev->noisecalc));
+}
+
+static void b43legacy_set_synth_pu_delay(struct b43legacy_wldev *dev,
+ bool idle) {
+ u16 pu_delay = 1050;
+
+ if (b43legacy_is_mode(dev->wl, NL80211_IFTYPE_ADHOC) || idle)
+ pu_delay = 500;
+ if ((dev->phy.radio_ver == 0x2050) && (dev->phy.radio_rev == 8))
+ pu_delay = max(pu_delay, (u16)2400);
+
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
+ B43legacy_SHM_SH_SPUWKUP, pu_delay);
+}
+
+/* Set the TSF CFP pre-TargetBeaconTransmissionTime. */
+static void b43legacy_set_pretbtt(struct b43legacy_wldev *dev)
+{
+ u16 pretbtt;
+
+ /* The time value is in microseconds. */
+ if (b43legacy_is_mode(dev->wl, NL80211_IFTYPE_ADHOC))
+ pretbtt = 2;
+ else
+ pretbtt = 250;
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
+ B43legacy_SHM_SH_PRETBTT, pretbtt);
+ b43legacy_write16(dev, B43legacy_MMIO_TSF_CFP_PRETBTT, pretbtt);
+}
+
+/* Shutdown a wireless core */
+/* Locking: wl->mutex */
+static void b43legacy_wireless_core_exit(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u32 macctl;
+
+ B43legacy_WARN_ON(b43legacy_status(dev) > B43legacy_STAT_INITIALIZED);
+ if (b43legacy_status(dev) != B43legacy_STAT_INITIALIZED)
+ return;
+ b43legacy_set_status(dev, B43legacy_STAT_UNINIT);
+
+ /* Stop the microcode PSM. */
+ macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
+ macctl &= ~B43legacy_MACCTL_PSM_RUN;
+ macctl |= B43legacy_MACCTL_PSM_JMP0;
+ b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
+
+ b43legacy_leds_exit(dev);
+ b43legacy_rng_exit(dev->wl);
+ b43legacy_pio_free(dev);
+ b43legacy_dma_free(dev);
+ b43legacy_chip_exit(dev);
+ b43legacy_radio_turn_off(dev, 1);
+ b43legacy_switch_analog(dev, 0);
+ if (phy->dyn_tssi_tbl)
+ kfree(phy->tssi2dbm);
+ kfree(phy->lo_control);
+ phy->lo_control = NULL;
+ if (dev->wl->current_beacon) {
+ dev_kfree_skb_any(dev->wl->current_beacon);
+ dev->wl->current_beacon = NULL;
+ }
+
+ ssb_device_disable(dev->dev, 0);
+ ssb_bus_may_powerdown(dev->dev->bus);
+}
+
+static void prepare_phy_data_for_init(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ int i;
+
+ /* Set default attenuation values. */
+ phy->bbatt = b43legacy_default_baseband_attenuation(dev);
+ phy->rfatt = b43legacy_default_radio_attenuation(dev);
+ phy->txctl1 = b43legacy_default_txctl1(dev);
+ phy->txctl2 = 0xFFFF;
+ phy->txpwr_offset = 0;
+
+ /* NRSSI */
+ phy->nrssislope = 0;
+ for (i = 0; i < ARRAY_SIZE(phy->nrssi); i++)
+ phy->nrssi[i] = -1000;
+ for (i = 0; i < ARRAY_SIZE(phy->nrssi_lt); i++)
+ phy->nrssi_lt[i] = i;
+
+ phy->lofcal = 0xFFFF;
+ phy->initval = 0xFFFF;
+
+ phy->aci_enable = false;
+ phy->aci_wlan_automatic = false;
+ phy->aci_hw_rssi = false;
+
+ phy->antenna_diversity = 0xFFFF;
+ memset(phy->minlowsig, 0xFF, sizeof(phy->minlowsig));
+ memset(phy->minlowsigpos, 0, sizeof(phy->minlowsigpos));
+
+ /* Flags */
+ phy->calibrated = 0;
+
+ if (phy->_lo_pairs)
+ memset(phy->_lo_pairs, 0,
+ sizeof(struct b43legacy_lopair) * B43legacy_LO_COUNT);
+ memset(phy->loopback_gain, 0, sizeof(phy->loopback_gain));
+}
+
+/* Initialize a wireless core */
+static int b43legacy_wireless_core_init(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_wl *wl = dev->wl;
+ struct ssb_bus *bus = dev->dev->bus;
+ struct b43legacy_phy *phy = &dev->phy;
+ struct ssb_sprom *sprom = &dev->dev->bus->sprom;
+ int err;
+ u32 hf;
+ u32 tmp;
+
+ B43legacy_WARN_ON(b43legacy_status(dev) != B43legacy_STAT_UNINIT);
+
+ err = ssb_bus_powerup(bus, 0);
+ if (err)
+ goto out;
+ if (!ssb_device_is_enabled(dev->dev)) {
+ tmp = phy->gmode ? B43legacy_TMSLOW_GMODE : 0;
+ b43legacy_wireless_core_reset(dev, tmp);
+ }
+
+ if ((phy->type == B43legacy_PHYTYPE_B) ||
+ (phy->type == B43legacy_PHYTYPE_G)) {
+ phy->_lo_pairs = kzalloc(sizeof(struct b43legacy_lopair)
+ * B43legacy_LO_COUNT,
+ GFP_KERNEL);
+ if (!phy->_lo_pairs)
+ return -ENOMEM;
+ }
+ setup_struct_wldev_for_init(dev);
+
+ err = b43legacy_phy_init_tssi2dbm_table(dev);
+ if (err)
+ goto err_kfree_lo_control;
+
+ /* Enable IRQ routing to this device. */
+ ssb_pcicore_dev_irqvecs_enable(&bus->pcicore, dev->dev);
+
+ prepare_phy_data_for_init(dev);
+ b43legacy_phy_calibrate(dev);
+ err = b43legacy_chip_init(dev);
+ if (err)
+ goto err_kfree_tssitbl;
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
+ B43legacy_SHM_SH_WLCOREREV,
+ dev->dev->id.revision);
+ hf = b43legacy_hf_read(dev);
+ if (phy->type == B43legacy_PHYTYPE_G) {
+ hf |= B43legacy_HF_SYMW;
+ if (phy->rev == 1)
+ hf |= B43legacy_HF_GDCW;
+ if (sprom->boardflags_lo & B43legacy_BFL_PACTRL)
+ hf |= B43legacy_HF_OFDMPABOOST;
+ } else if (phy->type == B43legacy_PHYTYPE_B) {
+ hf |= B43legacy_HF_SYMW;
+ if (phy->rev >= 2 && phy->radio_ver == 0x2050)
+ hf &= ~B43legacy_HF_GDCW;
+ }
+ b43legacy_hf_write(dev, hf);
+
+ b43legacy_set_retry_limits(dev,
+ B43legacy_DEFAULT_SHORT_RETRY_LIMIT,
+ B43legacy_DEFAULT_LONG_RETRY_LIMIT);
+
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
+ 0x0044, 3);
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
+ 0x0046, 2);
+
+ /* Disable sending probe responses from firmware.
+ * Setting the MaxTime to one usec will always trigger
+ * a timeout, so we never send any probe resp.
+ * A timeout of zero is infinite. */
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
+ B43legacy_SHM_SH_PRMAXTIME, 1);
+
+ b43legacy_rate_memory_init(dev);
+
+ /* Minimum Contention Window */
+ if (phy->type == B43legacy_PHYTYPE_B)
+ b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS,
+ 0x0003, 31);
+ else
+ b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS,
+ 0x0003, 15);
+ /* Maximum Contention Window */
+ b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS,
+ 0x0004, 1023);
+
+ do {
+ if (b43legacy_using_pio(dev))
+ err = b43legacy_pio_init(dev);
+ else {
+ err = b43legacy_dma_init(dev);
+ if (!err)
+ b43legacy_qos_init(dev);
+ }
+ } while (err == -EAGAIN);
+ if (err)
+ goto err_chip_exit;
+
+ b43legacy_set_synth_pu_delay(dev, 1);
+
+ ssb_bus_powerup(bus, 1); /* Enable dynamic PCTL */
+ b43legacy_upload_card_macaddress(dev);
+ b43legacy_security_init(dev);
+ b43legacy_rng_init(wl);
+
+ ieee80211_wake_queues(dev->wl->hw);
+ b43legacy_set_status(dev, B43legacy_STAT_INITIALIZED);
+
+ b43legacy_leds_init(dev);
+out:
+ return err;
+
+err_chip_exit:
+ b43legacy_chip_exit(dev);
+err_kfree_tssitbl:
+ if (phy->dyn_tssi_tbl)
+ kfree(phy->tssi2dbm);
+err_kfree_lo_control:
+ kfree(phy->lo_control);
+ phy->lo_control = NULL;
+ ssb_bus_may_powerdown(bus);
+ B43legacy_WARN_ON(b43legacy_status(dev) != B43legacy_STAT_UNINIT);
+ return err;
+}
+
+static int b43legacy_op_add_interface(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
+ struct b43legacy_wldev *dev;
+ unsigned long flags;
+ int err = -EOPNOTSUPP;
+
+ /* TODO: allow WDS/AP devices to coexist */
+
+ if (vif->type != NL80211_IFTYPE_AP &&
+ vif->type != NL80211_IFTYPE_STATION &&
+ vif->type != NL80211_IFTYPE_WDS &&
+ vif->type != NL80211_IFTYPE_ADHOC)
+ return -EOPNOTSUPP;
+
+ mutex_lock(&wl->mutex);
+ if (wl->operating)
+ goto out_mutex_unlock;
+
+ b43legacydbg(wl, "Adding Interface type %d\n", vif->type);
+
+ dev = wl->current_dev;
+ wl->operating = true;
+ wl->vif = vif;
+ wl->if_type = vif->type;
+ memcpy(wl->mac_addr, vif->addr, ETH_ALEN);
+
+ spin_lock_irqsave(&wl->irq_lock, flags);
+ b43legacy_adjust_opmode(dev);
+ b43legacy_set_pretbtt(dev);
+ b43legacy_set_synth_pu_delay(dev, 0);
+ b43legacy_upload_card_macaddress(dev);
+ spin_unlock_irqrestore(&wl->irq_lock, flags);
+
+ err = 0;
+ out_mutex_unlock:
+ mutex_unlock(&wl->mutex);
+
+ return err;
+}
+
+static void b43legacy_op_remove_interface(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
+ struct b43legacy_wldev *dev = wl->current_dev;
+ unsigned long flags;
+
+ b43legacydbg(wl, "Removing Interface type %d\n", vif->type);
+
+ mutex_lock(&wl->mutex);
+
+ B43legacy_WARN_ON(!wl->operating);
+ B43legacy_WARN_ON(wl->vif != vif);
+ wl->vif = NULL;
+
+ wl->operating = false;
+
+ spin_lock_irqsave(&wl->irq_lock, flags);
+ b43legacy_adjust_opmode(dev);
+ eth_zero_addr(wl->mac_addr);
+ b43legacy_upload_card_macaddress(dev);
+ spin_unlock_irqrestore(&wl->irq_lock, flags);
+
+ mutex_unlock(&wl->mutex);
+}
+
+static int b43legacy_op_start(struct ieee80211_hw *hw)
+{
+ struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
+ struct b43legacy_wldev *dev = wl->current_dev;
+ int did_init = 0;
+ int err = 0;
+
+ /* Kill all old instance specific information to make sure
+ * the card won't use it in the short timeframe between start
+ * and mac80211 reconfiguring it. */
+ eth_zero_addr(wl->bssid);
+ eth_zero_addr(wl->mac_addr);
+ wl->filter_flags = 0;
+ wl->beacon0_uploaded = false;
+ wl->beacon1_uploaded = false;
+ wl->beacon_templates_virgin = true;
+ wl->radio_enabled = true;
+
+ mutex_lock(&wl->mutex);
+
+ if (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED) {
+ err = b43legacy_wireless_core_init(dev);
+ if (err)
+ goto out_mutex_unlock;
+ did_init = 1;
+ }
+
+ if (b43legacy_status(dev) < B43legacy_STAT_STARTED) {
+ err = b43legacy_wireless_core_start(dev);
+ if (err) {
+ if (did_init)
+ b43legacy_wireless_core_exit(dev);
+ goto out_mutex_unlock;
+ }
+ }
+
+ wiphy_rfkill_start_polling(hw->wiphy);
+
+out_mutex_unlock:
+ mutex_unlock(&wl->mutex);
+
+ return err;
+}
+
+static void b43legacy_op_stop(struct ieee80211_hw *hw)
+{
+ struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
+ struct b43legacy_wldev *dev = wl->current_dev;
+
+ cancel_work_sync(&(wl->beacon_update_trigger));
+
+ mutex_lock(&wl->mutex);
+ if (b43legacy_status(dev) >= B43legacy_STAT_STARTED)
+ b43legacy_wireless_core_stop(dev);
+ b43legacy_wireless_core_exit(dev);
+ wl->radio_enabled = false;
+ mutex_unlock(&wl->mutex);
+}
+
+static int b43legacy_op_beacon_set_tim(struct ieee80211_hw *hw,
+ struct ieee80211_sta *sta, bool set)
+{
+ struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
+ unsigned long flags;
+
+ spin_lock_irqsave(&wl->irq_lock, flags);
+ b43legacy_update_templates(wl);
+ spin_unlock_irqrestore(&wl->irq_lock, flags);
+
+ return 0;
+}
+
+static int b43legacy_op_get_survey(struct ieee80211_hw *hw, int idx,
+ struct survey_info *survey)
+{
+ struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
+ struct b43legacy_wldev *dev = wl->current_dev;
+ struct ieee80211_conf *conf = &hw->conf;
+
+ if (idx != 0)
+ return -ENOENT;
+
+ survey->channel = conf->chandef.chan;
+ survey->filled = SURVEY_INFO_NOISE_DBM;
+ survey->noise = dev->stats.link_noise;
+
+ return 0;
+}
+
+static const struct ieee80211_ops b43legacy_hw_ops = {
+ .tx = b43legacy_op_tx,
+ .conf_tx = b43legacy_op_conf_tx,
+ .add_interface = b43legacy_op_add_interface,
+ .remove_interface = b43legacy_op_remove_interface,
+ .config = b43legacy_op_dev_config,
+ .bss_info_changed = b43legacy_op_bss_info_changed,
+ .configure_filter = b43legacy_op_configure_filter,
+ .get_stats = b43legacy_op_get_stats,
+ .start = b43legacy_op_start,
+ .stop = b43legacy_op_stop,
+ .set_tim = b43legacy_op_beacon_set_tim,
+ .get_survey = b43legacy_op_get_survey,
+ .rfkill_poll = b43legacy_rfkill_poll,
+};
+
+/* Hard-reset the chip. Do not call this directly.
+ * Use b43legacy_controller_restart()
+ */
+static void b43legacy_chip_reset(struct work_struct *work)
+{
+ struct b43legacy_wldev *dev =
+ container_of(work, struct b43legacy_wldev, restart_work);
+ struct b43legacy_wl *wl = dev->wl;
+ int err = 0;
+ int prev_status;
+
+ mutex_lock(&wl->mutex);
+
+ prev_status = b43legacy_status(dev);
+ /* Bring the device down... */
+ if (prev_status >= B43legacy_STAT_STARTED)
+ b43legacy_wireless_core_stop(dev);
+ if (prev_status >= B43legacy_STAT_INITIALIZED)
+ b43legacy_wireless_core_exit(dev);
+
+ /* ...and up again. */
+ if (prev_status >= B43legacy_STAT_INITIALIZED) {
+ err = b43legacy_wireless_core_init(dev);
+ if (err)
+ goto out;
+ }
+ if (prev_status >= B43legacy_STAT_STARTED) {
+ err = b43legacy_wireless_core_start(dev);
+ if (err) {
+ b43legacy_wireless_core_exit(dev);
+ goto out;
+ }
+ }
+out:
+ if (err)
+ wl->current_dev = NULL; /* Failed to init the dev. */
+ mutex_unlock(&wl->mutex);
+ if (err)
+ b43legacyerr(wl, "Controller restart FAILED\n");
+ else
+ b43legacyinfo(wl, "Controller restarted\n");
+}
+
+static int b43legacy_setup_modes(struct b43legacy_wldev *dev,
+ int have_bphy,
+ int have_gphy)
+{
+ struct ieee80211_hw *hw = dev->wl->hw;
+ struct b43legacy_phy *phy = &dev->phy;
+
+ phy->possible_phymodes = 0;
+ if (have_bphy) {
+ hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
+ &b43legacy_band_2GHz_BPHY;
+ phy->possible_phymodes |= B43legacy_PHYMODE_B;
+ }
+
+ if (have_gphy) {
+ hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
+ &b43legacy_band_2GHz_GPHY;
+ phy->possible_phymodes |= B43legacy_PHYMODE_G;
+ }
+
+ return 0;
+}
+
+static void b43legacy_wireless_core_detach(struct b43legacy_wldev *dev)
+{
+ /* We release firmware that late to not be required to re-request
+ * is all the time when we reinit the core. */
+ b43legacy_release_firmware(dev);
+}
+
+static int b43legacy_wireless_core_attach(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_wl *wl = dev->wl;
+ struct ssb_bus *bus = dev->dev->bus;
+ struct pci_dev *pdev = (bus->bustype == SSB_BUSTYPE_PCI) ? bus->host_pci : NULL;
+ int err;
+ int have_bphy = 0;
+ int have_gphy = 0;
+ u32 tmp;
+
+ /* Do NOT do any device initialization here.
+ * Do it in wireless_core_init() instead.
+ * This function is for gathering basic information about the HW, only.
+ * Also some structs may be set up here. But most likely you want to
+ * have that in core_init(), too.
+ */
+
+ err = ssb_bus_powerup(bus, 0);
+ if (err) {
+ b43legacyerr(wl, "Bus powerup failed\n");
+ goto out;
+ }
+ /* Get the PHY type. */
+ if (dev->dev->id.revision >= 5) {
+ u32 tmshigh;
+
+ tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH);
+ have_gphy = !!(tmshigh & B43legacy_TMSHIGH_GPHY);
+ if (!have_gphy)
+ have_bphy = 1;
+ } else if (dev->dev->id.revision == 4)
+ have_gphy = 1;
+ else
+ have_bphy = 1;
+
+ dev->phy.gmode = (have_gphy || have_bphy);
+ dev->phy.radio_on = true;
+ tmp = dev->phy.gmode ? B43legacy_TMSLOW_GMODE : 0;
+ b43legacy_wireless_core_reset(dev, tmp);
+
+ err = b43legacy_phy_versioning(dev);
+ if (err)
+ goto err_powerdown;
+ /* Check if this device supports multiband. */
+ if (!pdev ||
+ (pdev->device != 0x4312 &&
+ pdev->device != 0x4319 &&
+ pdev->device != 0x4324)) {
+ /* No multiband support. */
+ have_bphy = 0;
+ have_gphy = 0;
+ switch (dev->phy.type) {
+ case B43legacy_PHYTYPE_B:
+ have_bphy = 1;
+ break;
+ case B43legacy_PHYTYPE_G:
+ have_gphy = 1;
+ break;
+ default:
+ B43legacy_BUG_ON(1);
+ }
+ }
+ dev->phy.gmode = (have_gphy || have_bphy);
+ tmp = dev->phy.gmode ? B43legacy_TMSLOW_GMODE : 0;
+ b43legacy_wireless_core_reset(dev, tmp);
+
+ err = b43legacy_validate_chipaccess(dev);
+ if (err)
+ goto err_powerdown;
+ err = b43legacy_setup_modes(dev, have_bphy, have_gphy);
+ if (err)
+ goto err_powerdown;
+
+ /* Now set some default "current_dev" */
+ if (!wl->current_dev)
+ wl->current_dev = dev;
+ INIT_WORK(&dev->restart_work, b43legacy_chip_reset);
+
+ b43legacy_radio_turn_off(dev, 1);
+ b43legacy_switch_analog(dev, 0);
+ ssb_device_disable(dev->dev, 0);
+ ssb_bus_may_powerdown(bus);
+
+out:
+ return err;
+
+err_powerdown:
+ ssb_bus_may_powerdown(bus);
+ return err;
+}
+
+static void b43legacy_one_core_detach(struct ssb_device *dev)
+{
+ struct b43legacy_wldev *wldev;
+ struct b43legacy_wl *wl;
+
+ /* Do not cancel ieee80211-workqueue based work here.
+ * See comment in b43legacy_remove(). */
+
+ wldev = ssb_get_drvdata(dev);
+ wl = wldev->wl;
+ b43legacy_debugfs_remove_device(wldev);
+ b43legacy_wireless_core_detach(wldev);
+ list_del(&wldev->list);
+ wl->nr_devs--;
+ ssb_set_drvdata(dev, NULL);
+ kfree(wldev);
+}
+
+static int b43legacy_one_core_attach(struct ssb_device *dev,
+ struct b43legacy_wl *wl)
+{
+ struct b43legacy_wldev *wldev;
+ int err = -ENOMEM;
+
+ wldev = kzalloc(sizeof(*wldev), GFP_KERNEL);
+ if (!wldev)
+ goto out;
+
+ wldev->dev = dev;
+ wldev->wl = wl;
+ b43legacy_set_status(wldev, B43legacy_STAT_UNINIT);
+ wldev->bad_frames_preempt = modparam_bad_frames_preempt;
+ tasklet_init(&wldev->isr_tasklet,
+ (void (*)(unsigned long))b43legacy_interrupt_tasklet,
+ (unsigned long)wldev);
+ if (modparam_pio)
+ wldev->__using_pio = true;
+ INIT_LIST_HEAD(&wldev->list);
+
+ err = b43legacy_wireless_core_attach(wldev);
+ if (err)
+ goto err_kfree_wldev;
+
+ list_add(&wldev->list, &wl->devlist);
+ wl->nr_devs++;
+ ssb_set_drvdata(dev, wldev);
+ b43legacy_debugfs_add_device(wldev);
+out:
+ return err;
+
+err_kfree_wldev:
+ kfree(wldev);
+ return err;
+}
+
+static void b43legacy_sprom_fixup(struct ssb_bus *bus)
+{
+ /* boardflags workarounds */
+ if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE &&
+ bus->boardinfo.type == 0x4E &&
+ bus->sprom.board_rev > 0x40)
+ bus->sprom.boardflags_lo |= B43legacy_BFL_PACTRL;
+}
+
+static void b43legacy_wireless_exit(struct ssb_device *dev,
+ struct b43legacy_wl *wl)
+{
+ struct ieee80211_hw *hw = wl->hw;
+
+ ssb_set_devtypedata(dev, NULL);
+ ieee80211_free_hw(hw);
+}
+
+static int b43legacy_wireless_init(struct ssb_device *dev)
+{
+ struct ssb_sprom *sprom = &dev->bus->sprom;
+ struct ieee80211_hw *hw;
+ struct b43legacy_wl *wl;
+ int err = -ENOMEM;
+ int queue_num;
+
+ b43legacy_sprom_fixup(dev->bus);
+
+ hw = ieee80211_alloc_hw(sizeof(*wl), &b43legacy_hw_ops);
+ if (!hw) {
+ b43legacyerr(NULL, "Could not allocate ieee80211 device\n");
+ goto out;
+ }
+
+ /* fill hw info */
+ ieee80211_hw_set(hw, RX_INCLUDES_FCS);
+ ieee80211_hw_set(hw, SIGNAL_DBM);
+
+ hw->wiphy->interface_modes =
+ BIT(NL80211_IFTYPE_AP) |
+ BIT(NL80211_IFTYPE_STATION) |
+ BIT(NL80211_IFTYPE_WDS) |
+ BIT(NL80211_IFTYPE_ADHOC);
+ hw->queues = 1; /* FIXME: hardware has more queues */
+ hw->max_rates = 2;
+ SET_IEEE80211_DEV(hw, dev->dev);
+ if (is_valid_ether_addr(sprom->et1mac))
+ SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac);
+ else
+ SET_IEEE80211_PERM_ADDR(hw, sprom->il0mac);
+
+ /* Get and initialize struct b43legacy_wl */
+ wl = hw_to_b43legacy_wl(hw);
+ memset(wl, 0, sizeof(*wl));
+ wl->hw = hw;
+ spin_lock_init(&wl->irq_lock);
+ spin_lock_init(&wl->leds_lock);
+ mutex_init(&wl->mutex);
+ INIT_LIST_HEAD(&wl->devlist);
+ INIT_WORK(&wl->beacon_update_trigger, b43legacy_beacon_update_trigger_work);
+ INIT_WORK(&wl->tx_work, b43legacy_tx_work);
+
+ /* Initialize queues and flags. */
+ for (queue_num = 0; queue_num < B43legacy_QOS_QUEUE_NUM; queue_num++) {
+ skb_queue_head_init(&wl->tx_queue[queue_num]);
+ wl->tx_queue_stopped[queue_num] = 0;
+ }
+
+ ssb_set_devtypedata(dev, wl);
+ b43legacyinfo(wl, "Broadcom %04X WLAN found (core revision %u)\n",
+ dev->bus->chip_id, dev->id.revision);
+ err = 0;
+out:
+ return err;
+}
+
+static int b43legacy_probe(struct ssb_device *dev,
+ const struct ssb_device_id *id)
+{
+ struct b43legacy_wl *wl;
+ int err;
+ int first = 0;
+
+ wl = ssb_get_devtypedata(dev);
+ if (!wl) {
+ /* Probing the first core - setup common struct b43legacy_wl */
+ first = 1;
+ err = b43legacy_wireless_init(dev);
+ if (err)
+ goto out;
+ wl = ssb_get_devtypedata(dev);
+ B43legacy_WARN_ON(!wl);
+ }
+ err = b43legacy_one_core_attach(dev, wl);
+ if (err)
+ goto err_wireless_exit;
+
+ /* setup and start work to load firmware */
+ INIT_WORK(&wl->firmware_load, b43legacy_request_firmware);
+ schedule_work(&wl->firmware_load);
+
+out:
+ return err;
+
+err_wireless_exit:
+ if (first)
+ b43legacy_wireless_exit(dev, wl);
+ return err;
+}
+
+static void b43legacy_remove(struct ssb_device *dev)
+{
+ struct b43legacy_wl *wl = ssb_get_devtypedata(dev);
+ struct b43legacy_wldev *wldev = ssb_get_drvdata(dev);
+
+ /* We must cancel any work here before unregistering from ieee80211,
+ * as the ieee80211 unreg will destroy the workqueue. */
+ cancel_work_sync(&wldev->restart_work);
+ cancel_work_sync(&wl->firmware_load);
+ complete(&wldev->fw_load_complete);
+
+ B43legacy_WARN_ON(!wl);
+ if (!wldev->fw.ucode)
+ return; /* NULL if fw never loaded */
+ if (wl->current_dev == wldev)
+ ieee80211_unregister_hw(wl->hw);
+
+ b43legacy_one_core_detach(dev);
+
+ if (list_empty(&wl->devlist))
+ /* Last core on the chip unregistered.
+ * We can destroy common struct b43legacy_wl.
+ */
+ b43legacy_wireless_exit(dev, wl);
+}
+
+/* Perform a hardware reset. This can be called from any context. */
+void b43legacy_controller_restart(struct b43legacy_wldev *dev,
+ const char *reason)
+{
+ /* Must avoid requeueing, if we are in shutdown. */
+ if (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED)
+ return;
+ b43legacyinfo(dev->wl, "Controller RESET (%s) ...\n", reason);
+ ieee80211_queue_work(dev->wl->hw, &dev->restart_work);
+}
+
+#ifdef CONFIG_PM
+
+static int b43legacy_suspend(struct ssb_device *dev, pm_message_t state)
+{
+ struct b43legacy_wldev *wldev = ssb_get_drvdata(dev);
+ struct b43legacy_wl *wl = wldev->wl;
+
+ b43legacydbg(wl, "Suspending...\n");
+
+ mutex_lock(&wl->mutex);
+ wldev->suspend_init_status = b43legacy_status(wldev);
+ if (wldev->suspend_init_status >= B43legacy_STAT_STARTED)
+ b43legacy_wireless_core_stop(wldev);
+ if (wldev->suspend_init_status >= B43legacy_STAT_INITIALIZED)
+ b43legacy_wireless_core_exit(wldev);
+ mutex_unlock(&wl->mutex);
+
+ b43legacydbg(wl, "Device suspended.\n");
+
+ return 0;
+}
+
+static int b43legacy_resume(struct ssb_device *dev)
+{
+ struct b43legacy_wldev *wldev = ssb_get_drvdata(dev);
+ struct b43legacy_wl *wl = wldev->wl;
+ int err = 0;
+
+ b43legacydbg(wl, "Resuming...\n");
+
+ mutex_lock(&wl->mutex);
+ if (wldev->suspend_init_status >= B43legacy_STAT_INITIALIZED) {
+ err = b43legacy_wireless_core_init(wldev);
+ if (err) {
+ b43legacyerr(wl, "Resume failed at core init\n");
+ goto out;
+ }
+ }
+ if (wldev->suspend_init_status >= B43legacy_STAT_STARTED) {
+ err = b43legacy_wireless_core_start(wldev);
+ if (err) {
+ b43legacy_wireless_core_exit(wldev);
+ b43legacyerr(wl, "Resume failed at core start\n");
+ goto out;
+ }
+ }
+
+ b43legacydbg(wl, "Device resumed.\n");
+out:
+ mutex_unlock(&wl->mutex);
+ return err;
+}
+
+#else /* CONFIG_PM */
+# define b43legacy_suspend NULL
+# define b43legacy_resume NULL
+#endif /* CONFIG_PM */
+
+static struct ssb_driver b43legacy_ssb_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = b43legacy_ssb_tbl,
+ .probe = b43legacy_probe,
+ .remove = b43legacy_remove,
+ .suspend = b43legacy_suspend,
+ .resume = b43legacy_resume,
+};
+
+static void b43legacy_print_driverinfo(void)
+{
+ const char *feat_pci = "", *feat_leds = "",
+ *feat_pio = "", *feat_dma = "";
+
+#ifdef CONFIG_B43LEGACY_PCI_AUTOSELECT
+ feat_pci = "P";
+#endif
+#ifdef CONFIG_B43LEGACY_LEDS
+ feat_leds = "L";
+#endif
+#ifdef CONFIG_B43LEGACY_PIO
+ feat_pio = "I";
+#endif
+#ifdef CONFIG_B43LEGACY_DMA
+ feat_dma = "D";
+#endif
+ printk(KERN_INFO "Broadcom 43xx-legacy driver loaded "
+ "[ Features: %s%s%s%s ]\n",
+ feat_pci, feat_leds, feat_pio, feat_dma);
+}
+
+static int __init b43legacy_init(void)
+{
+ int err;
+
+ b43legacy_debugfs_init();
+
+ err = ssb_driver_register(&b43legacy_ssb_driver);
+ if (err)
+ goto err_dfs_exit;
+
+ b43legacy_print_driverinfo();
+
+ return err;
+
+err_dfs_exit:
+ b43legacy_debugfs_exit();
+ return err;
+}
+
+static void __exit b43legacy_exit(void)
+{
+ ssb_driver_unregister(&b43legacy_ssb_driver);
+ b43legacy_debugfs_exit();
+}
+
+module_init(b43legacy_init)
+module_exit(b43legacy_exit)
--- /dev/null
+/*
+
+ Broadcom B43legacy wireless driver
+
+ Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
+ Copyright (c) 2005 Stefano Brivio <stefano.brivio@polimi.it>
+ Copyright (c) 2005, 2006 Michael Buesch <m@bues.ch>
+ Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org>
+ Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
+ Copyright (c) 2007 Larry Finger <Larry.Finger@lwfinger.net>
+
+ Some parts of the code in this file are derived from the ipw2200
+ driver Copyright(c) 2003 - 2004 Intel Corporation.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+
+*/
+
+#ifndef B43legacy_MAIN_H_
+#define B43legacy_MAIN_H_
+
+#include "b43legacy.h"
+
+
+#define P4D_BYT3S(magic, nr_bytes) u8 __p4dding##magic[nr_bytes]
+#define P4D_BYTES(line, nr_bytes) P4D_BYT3S(line, nr_bytes)
+/* Magic helper macro to pad structures. Ignore those above. It's magic. */
+#define PAD_BYTES(nr_bytes) P4D_BYTES(__LINE__ , (nr_bytes))
+
+
+/* Lightweight function to convert a frequency (in Mhz) to a channel number. */
+static inline
+u8 b43legacy_freq_to_channel_bg(int freq)
+{
+ u8 channel;
+
+ if (freq == 2484)
+ channel = 14;
+ else
+ channel = (freq - 2407) / 5;
+
+ return channel;
+}
+static inline
+u8 b43legacy_freq_to_channel(struct b43legacy_wldev *dev,
+ int freq)
+{
+ return b43legacy_freq_to_channel_bg(freq);
+}
+
+/* Lightweight function to convert a channel number to a frequency (in Mhz). */
+static inline
+int b43legacy_channel_to_freq_bg(u8 channel)
+{
+ int freq;
+
+ if (channel == 14)
+ freq = 2484;
+ else
+ freq = 2407 + (5 * channel);
+
+ return freq;
+}
+
+static inline
+int b43legacy_channel_to_freq(struct b43legacy_wldev *dev,
+ u8 channel)
+{
+ return b43legacy_channel_to_freq_bg(channel);
+}
+
+static inline
+int b43legacy_is_cck_rate(int rate)
+{
+ return (rate == B43legacy_CCK_RATE_1MB ||
+ rate == B43legacy_CCK_RATE_2MB ||
+ rate == B43legacy_CCK_RATE_5MB ||
+ rate == B43legacy_CCK_RATE_11MB);
+}
+
+static inline
+int b43legacy_is_ofdm_rate(int rate)
+{
+ return !b43legacy_is_cck_rate(rate);
+}
+
+void b43legacy_tsf_read(struct b43legacy_wldev *dev, u64 *tsf);
+void b43legacy_tsf_write(struct b43legacy_wldev *dev, u64 tsf);
+
+u32 b43legacy_shm_read32(struct b43legacy_wldev *dev,
+ u16 routing, u16 offset);
+u16 b43legacy_shm_read16(struct b43legacy_wldev *dev,
+ u16 routing, u16 offset);
+void b43legacy_shm_write32(struct b43legacy_wldev *dev,
+ u16 routing, u16 offset,
+ u32 value);
+void b43legacy_shm_write16(struct b43legacy_wldev *dev,
+ u16 routing, u16 offset,
+ u16 value);
+
+u32 b43legacy_hf_read(struct b43legacy_wldev *dev);
+void b43legacy_hf_write(struct b43legacy_wldev *dev, u32 value);
+
+void b43legacy_dummy_transmission(struct b43legacy_wldev *dev);
+
+void b43legacy_wireless_core_reset(struct b43legacy_wldev *dev, u32 flags);
+
+void b43legacy_mac_suspend(struct b43legacy_wldev *dev);
+void b43legacy_mac_enable(struct b43legacy_wldev *dev);
+
+void b43legacy_controller_restart(struct b43legacy_wldev *dev,
+ const char *reason);
+
+#endif /* B43legacy_MAIN_H_ */
--- /dev/null
+/*
+
+ Broadcom B43legacy wireless driver
+
+ Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
+ Stefano Brivio <stefano.brivio@polimi.it>
+ Michael Buesch <m@bues.ch>
+ Danny van Dyk <kugelfang@gentoo.org>
+ Andreas Jaggi <andreas.jaggi@waterwave.ch>
+ Copyright (c) 2007 Larry Finger <Larry.Finger@lwfinger.net>
+
+ Some parts of the code in this file are derived from the ipw2200
+ driver Copyright(c) 2003 - 2004 Intel Corporation.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+
+*/
+
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+#include "b43legacy.h"
+#include "phy.h"
+#include "main.h"
+#include "radio.h"
+#include "ilt.h"
+
+
+static const s8 b43legacy_tssi2dbm_b_table[] = {
+ 0x4D, 0x4C, 0x4B, 0x4A,
+ 0x4A, 0x49, 0x48, 0x47,
+ 0x47, 0x46, 0x45, 0x45,
+ 0x44, 0x43, 0x42, 0x42,
+ 0x41, 0x40, 0x3F, 0x3E,
+ 0x3D, 0x3C, 0x3B, 0x3A,
+ 0x39, 0x38, 0x37, 0x36,
+ 0x35, 0x34, 0x32, 0x31,
+ 0x30, 0x2F, 0x2D, 0x2C,
+ 0x2B, 0x29, 0x28, 0x26,
+ 0x25, 0x23, 0x21, 0x1F,
+ 0x1D, 0x1A, 0x17, 0x14,
+ 0x10, 0x0C, 0x06, 0x00,
+ -7, -7, -7, -7,
+ -7, -7, -7, -7,
+ -7, -7, -7, -7,
+};
+
+static const s8 b43legacy_tssi2dbm_g_table[] = {
+ 77, 77, 77, 76,
+ 76, 76, 75, 75,
+ 74, 74, 73, 73,
+ 73, 72, 72, 71,
+ 71, 70, 70, 69,
+ 68, 68, 67, 67,
+ 66, 65, 65, 64,
+ 63, 63, 62, 61,
+ 60, 59, 58, 57,
+ 56, 55, 54, 53,
+ 52, 50, 49, 47,
+ 45, 43, 40, 37,
+ 33, 28, 22, 14,
+ 5, -7, -20, -20,
+ -20, -20, -20, -20,
+ -20, -20, -20, -20,
+};
+
+static void b43legacy_phy_initg(struct b43legacy_wldev *dev);
+
+
+static inline
+void b43legacy_voluntary_preempt(void)
+{
+ B43legacy_BUG_ON(!(!in_atomic() && !in_irq() &&
+ !in_interrupt() && !irqs_disabled()));
+#ifndef CONFIG_PREEMPT
+ cond_resched();
+#endif /* CONFIG_PREEMPT */
+}
+
+/* Lock the PHY registers against concurrent access from the microcode.
+ * This lock is nonrecursive. */
+void b43legacy_phy_lock(struct b43legacy_wldev *dev)
+{
+#if B43legacy_DEBUG
+ B43legacy_WARN_ON(dev->phy.phy_locked);
+ dev->phy.phy_locked = 1;
+#endif
+
+ if (dev->dev->id.revision < 3) {
+ b43legacy_mac_suspend(dev);
+ } else {
+ if (!b43legacy_is_mode(dev->wl, NL80211_IFTYPE_AP))
+ b43legacy_power_saving_ctl_bits(dev, -1, 1);
+ }
+}
+
+void b43legacy_phy_unlock(struct b43legacy_wldev *dev)
+{
+#if B43legacy_DEBUG
+ B43legacy_WARN_ON(!dev->phy.phy_locked);
+ dev->phy.phy_locked = 0;
+#endif
+
+ if (dev->dev->id.revision < 3) {
+ b43legacy_mac_enable(dev);
+ } else {
+ if (!b43legacy_is_mode(dev->wl, NL80211_IFTYPE_AP))
+ b43legacy_power_saving_ctl_bits(dev, -1, -1);
+ }
+}
+
+u16 b43legacy_phy_read(struct b43legacy_wldev *dev, u16 offset)
+{
+ b43legacy_write16(dev, B43legacy_MMIO_PHY_CONTROL, offset);
+ return b43legacy_read16(dev, B43legacy_MMIO_PHY_DATA);
+}
+
+void b43legacy_phy_write(struct b43legacy_wldev *dev, u16 offset, u16 val)
+{
+ b43legacy_write16(dev, B43legacy_MMIO_PHY_CONTROL, offset);
+ mmiowb();
+ b43legacy_write16(dev, B43legacy_MMIO_PHY_DATA, val);
+}
+
+void b43legacy_phy_calibrate(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+
+ b43legacy_read32(dev, B43legacy_MMIO_MACCTL); /* Dummy read. */
+ if (phy->calibrated)
+ return;
+ if (phy->type == B43legacy_PHYTYPE_G && phy->rev == 1) {
+ b43legacy_wireless_core_reset(dev, 0);
+ b43legacy_phy_initg(dev);
+ b43legacy_wireless_core_reset(dev, B43legacy_TMSLOW_GMODE);
+ }
+ phy->calibrated = 1;
+}
+
+/* initialize B PHY power control
+ * as described in http://bcm-specs.sipsolutions.net/InitPowerControl
+ */
+static void b43legacy_phy_init_pctl(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 saved_batt = 0;
+ u16 saved_ratt = 0;
+ u16 saved_txctl1 = 0;
+ int must_reset_txpower = 0;
+
+ B43legacy_BUG_ON(!(phy->type == B43legacy_PHYTYPE_B ||
+ phy->type == B43legacy_PHYTYPE_G));
+ if (is_bcm_board_vendor(dev) &&
+ (dev->dev->bus->boardinfo.type == 0x0416))
+ return;
+
+ b43legacy_phy_write(dev, 0x0028, 0x8018);
+ b43legacy_write16(dev, 0x03E6, b43legacy_read16(dev, 0x03E6) & 0xFFDF);
+
+ if (phy->type == B43legacy_PHYTYPE_G) {
+ if (!phy->gmode)
+ return;
+ b43legacy_phy_write(dev, 0x047A, 0xC111);
+ }
+ if (phy->savedpctlreg != 0xFFFF)
+ return;
+#ifdef CONFIG_B43LEGACY_DEBUG
+ if (phy->manual_txpower_control)
+ return;
+#endif
+
+ if (phy->type == B43legacy_PHYTYPE_B &&
+ phy->rev >= 2 &&
+ phy->radio_ver == 0x2050)
+ b43legacy_radio_write16(dev, 0x0076,
+ b43legacy_radio_read16(dev, 0x0076)
+ | 0x0084);
+ else {
+ saved_batt = phy->bbatt;
+ saved_ratt = phy->rfatt;
+ saved_txctl1 = phy->txctl1;
+ if ((phy->radio_rev >= 6) && (phy->radio_rev <= 8)
+ && /*FIXME: incomplete specs for 5 < revision < 9 */ 0)
+ b43legacy_radio_set_txpower_bg(dev, 0xB, 0x1F, 0);
+ else
+ b43legacy_radio_set_txpower_bg(dev, 0xB, 9, 0);
+ must_reset_txpower = 1;
+ }
+ b43legacy_dummy_transmission(dev);
+
+ phy->savedpctlreg = b43legacy_phy_read(dev, B43legacy_PHY_G_PCTL);
+
+ if (must_reset_txpower)
+ b43legacy_radio_set_txpower_bg(dev, saved_batt, saved_ratt,
+ saved_txctl1);
+ else
+ b43legacy_radio_write16(dev, 0x0076, b43legacy_radio_read16(dev,
+ 0x0076) & 0xFF7B);
+ b43legacy_radio_clear_tssi(dev);
+}
+
+static void b43legacy_phy_agcsetup(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 offset = 0x0000;
+
+ if (phy->rev == 1)
+ offset = 0x4C00;
+
+ b43legacy_ilt_write(dev, offset, 0x00FE);
+ b43legacy_ilt_write(dev, offset + 1, 0x000D);
+ b43legacy_ilt_write(dev, offset + 2, 0x0013);
+ b43legacy_ilt_write(dev, offset + 3, 0x0019);
+
+ if (phy->rev == 1) {
+ b43legacy_ilt_write(dev, 0x1800, 0x2710);
+ b43legacy_ilt_write(dev, 0x1801, 0x9B83);
+ b43legacy_ilt_write(dev, 0x1802, 0x9B83);
+ b43legacy_ilt_write(dev, 0x1803, 0x0F8D);
+ b43legacy_phy_write(dev, 0x0455, 0x0004);
+ }
+
+ b43legacy_phy_write(dev, 0x04A5, (b43legacy_phy_read(dev, 0x04A5)
+ & 0x00FF) | 0x5700);
+ b43legacy_phy_write(dev, 0x041A, (b43legacy_phy_read(dev, 0x041A)
+ & 0xFF80) | 0x000F);
+ b43legacy_phy_write(dev, 0x041A, (b43legacy_phy_read(dev, 0x041A)
+ & 0xC07F) | 0x2B80);
+ b43legacy_phy_write(dev, 0x048C, (b43legacy_phy_read(dev, 0x048C)
+ & 0xF0FF) | 0x0300);
+
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A)
+ | 0x0008);
+
+ b43legacy_phy_write(dev, 0x04A0, (b43legacy_phy_read(dev, 0x04A0)
+ & 0xFFF0) | 0x0008);
+ b43legacy_phy_write(dev, 0x04A1, (b43legacy_phy_read(dev, 0x04A1)
+ & 0xF0FF) | 0x0600);
+ b43legacy_phy_write(dev, 0x04A2, (b43legacy_phy_read(dev, 0x04A2)
+ & 0xF0FF) | 0x0700);
+ b43legacy_phy_write(dev, 0x04A0, (b43legacy_phy_read(dev, 0x04A0)
+ & 0xF0FF) | 0x0100);
+
+ if (phy->rev == 1)
+ b43legacy_phy_write(dev, 0x04A2,
+ (b43legacy_phy_read(dev, 0x04A2)
+ & 0xFFF0) | 0x0007);
+
+ b43legacy_phy_write(dev, 0x0488, (b43legacy_phy_read(dev, 0x0488)
+ & 0xFF00) | 0x001C);
+ b43legacy_phy_write(dev, 0x0488, (b43legacy_phy_read(dev, 0x0488)
+ & 0xC0FF) | 0x0200);
+ b43legacy_phy_write(dev, 0x0496, (b43legacy_phy_read(dev, 0x0496)
+ & 0xFF00) | 0x001C);
+ b43legacy_phy_write(dev, 0x0489, (b43legacy_phy_read(dev, 0x0489)
+ & 0xFF00) | 0x0020);
+ b43legacy_phy_write(dev, 0x0489, (b43legacy_phy_read(dev, 0x0489)
+ & 0xC0FF) | 0x0200);
+ b43legacy_phy_write(dev, 0x0482, (b43legacy_phy_read(dev, 0x0482)
+ & 0xFF00) | 0x002E);
+ b43legacy_phy_write(dev, 0x0496, (b43legacy_phy_read(dev, 0x0496)
+ & 0x00FF) | 0x1A00);
+ b43legacy_phy_write(dev, 0x0481, (b43legacy_phy_read(dev, 0x0481)
+ & 0xFF00) | 0x0028);
+ b43legacy_phy_write(dev, 0x0481, (b43legacy_phy_read(dev, 0x0481)
+ & 0x00FF) | 0x2C00);
+
+ if (phy->rev == 1) {
+ b43legacy_phy_write(dev, 0x0430, 0x092B);
+ b43legacy_phy_write(dev, 0x041B,
+ (b43legacy_phy_read(dev, 0x041B)
+ & 0xFFE1) | 0x0002);
+ } else {
+ b43legacy_phy_write(dev, 0x041B,
+ b43legacy_phy_read(dev, 0x041B) & 0xFFE1);
+ b43legacy_phy_write(dev, 0x041F, 0x287A);
+ b43legacy_phy_write(dev, 0x0420,
+ (b43legacy_phy_read(dev, 0x0420)
+ & 0xFFF0) | 0x0004);
+ }
+
+ if (phy->rev > 2) {
+ b43legacy_phy_write(dev, 0x0422, 0x287A);
+ b43legacy_phy_write(dev, 0x0420,
+ (b43legacy_phy_read(dev, 0x0420)
+ & 0x0FFF) | 0x3000);
+ }
+
+ b43legacy_phy_write(dev, 0x04A8, (b43legacy_phy_read(dev, 0x04A8)
+ & 0x8080) | 0x7874);
+ b43legacy_phy_write(dev, 0x048E, 0x1C00);
+
+ if (phy->rev == 1) {
+ b43legacy_phy_write(dev, 0x04AB,
+ (b43legacy_phy_read(dev, 0x04AB)
+ & 0xF0FF) | 0x0600);
+ b43legacy_phy_write(dev, 0x048B, 0x005E);
+ b43legacy_phy_write(dev, 0x048C,
+ (b43legacy_phy_read(dev, 0x048C) & 0xFF00)
+ | 0x001E);
+ b43legacy_phy_write(dev, 0x048D, 0x0002);
+ }
+
+ b43legacy_ilt_write(dev, offset + 0x0800, 0);
+ b43legacy_ilt_write(dev, offset + 0x0801, 7);
+ b43legacy_ilt_write(dev, offset + 0x0802, 16);
+ b43legacy_ilt_write(dev, offset + 0x0803, 28);
+
+ if (phy->rev >= 6) {
+ b43legacy_phy_write(dev, 0x0426,
+ (b43legacy_phy_read(dev, 0x0426) & 0xFFFC));
+ b43legacy_phy_write(dev, 0x0426,
+ (b43legacy_phy_read(dev, 0x0426) & 0xEFFF));
+ }
+}
+
+static void b43legacy_phy_setupg(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 i;
+
+ B43legacy_BUG_ON(phy->type != B43legacy_PHYTYPE_G);
+ if (phy->rev == 1) {
+ b43legacy_phy_write(dev, 0x0406, 0x4F19);
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
+ (b43legacy_phy_read(dev,
+ B43legacy_PHY_G_CRS) & 0xFC3F) | 0x0340);
+ b43legacy_phy_write(dev, 0x042C, 0x005A);
+ b43legacy_phy_write(dev, 0x0427, 0x001A);
+
+ for (i = 0; i < B43legacy_ILT_FINEFREQG_SIZE; i++)
+ b43legacy_ilt_write(dev, 0x5800 + i,
+ b43legacy_ilt_finefreqg[i]);
+ for (i = 0; i < B43legacy_ILT_NOISEG1_SIZE; i++)
+ b43legacy_ilt_write(dev, 0x1800 + i,
+ b43legacy_ilt_noiseg1[i]);
+ for (i = 0; i < B43legacy_ILT_ROTOR_SIZE; i++)
+ b43legacy_ilt_write32(dev, 0x2000 + i,
+ b43legacy_ilt_rotor[i]);
+ } else {
+ /* nrssi values are signed 6-bit values. Why 0x7654 here? */
+ b43legacy_nrssi_hw_write(dev, 0xBA98, (s16)0x7654);
+
+ if (phy->rev == 2) {
+ b43legacy_phy_write(dev, 0x04C0, 0x1861);
+ b43legacy_phy_write(dev, 0x04C1, 0x0271);
+ } else if (phy->rev > 2) {
+ b43legacy_phy_write(dev, 0x04C0, 0x0098);
+ b43legacy_phy_write(dev, 0x04C1, 0x0070);
+ b43legacy_phy_write(dev, 0x04C9, 0x0080);
+ }
+ b43legacy_phy_write(dev, 0x042B, b43legacy_phy_read(dev,
+ 0x042B) | 0x800);
+
+ for (i = 0; i < 64; i++)
+ b43legacy_ilt_write(dev, 0x4000 + i, i);
+ for (i = 0; i < B43legacy_ILT_NOISEG2_SIZE; i++)
+ b43legacy_ilt_write(dev, 0x1800 + i,
+ b43legacy_ilt_noiseg2[i]);
+ }
+
+ if (phy->rev <= 2)
+ for (i = 0; i < B43legacy_ILT_NOISESCALEG_SIZE; i++)
+ b43legacy_ilt_write(dev, 0x1400 + i,
+ b43legacy_ilt_noisescaleg1[i]);
+ else if ((phy->rev >= 7) && (b43legacy_phy_read(dev, 0x0449) & 0x0200))
+ for (i = 0; i < B43legacy_ILT_NOISESCALEG_SIZE; i++)
+ b43legacy_ilt_write(dev, 0x1400 + i,
+ b43legacy_ilt_noisescaleg3[i]);
+ else
+ for (i = 0; i < B43legacy_ILT_NOISESCALEG_SIZE; i++)
+ b43legacy_ilt_write(dev, 0x1400 + i,
+ b43legacy_ilt_noisescaleg2[i]);
+
+ if (phy->rev == 2)
+ for (i = 0; i < B43legacy_ILT_SIGMASQR_SIZE; i++)
+ b43legacy_ilt_write(dev, 0x5000 + i,
+ b43legacy_ilt_sigmasqr1[i]);
+ else if ((phy->rev > 2) && (phy->rev <= 8))
+ for (i = 0; i < B43legacy_ILT_SIGMASQR_SIZE; i++)
+ b43legacy_ilt_write(dev, 0x5000 + i,
+ b43legacy_ilt_sigmasqr2[i]);
+
+ if (phy->rev == 1) {
+ for (i = 0; i < B43legacy_ILT_RETARD_SIZE; i++)
+ b43legacy_ilt_write32(dev, 0x2400 + i,
+ b43legacy_ilt_retard[i]);
+ for (i = 4; i < 20; i++)
+ b43legacy_ilt_write(dev, 0x5400 + i, 0x0020);
+ b43legacy_phy_agcsetup(dev);
+
+ if (is_bcm_board_vendor(dev) &&
+ (dev->dev->bus->boardinfo.type == 0x0416) &&
+ (dev->dev->bus->sprom.board_rev == 0x0017))
+ return;
+
+ b43legacy_ilt_write(dev, 0x5001, 0x0002);
+ b43legacy_ilt_write(dev, 0x5002, 0x0001);
+ } else {
+ for (i = 0; i <= 0x20; i++)
+ b43legacy_ilt_write(dev, 0x1000 + i, 0x0820);
+ b43legacy_phy_agcsetup(dev);
+ b43legacy_phy_read(dev, 0x0400); /* dummy read */
+ b43legacy_phy_write(dev, 0x0403, 0x1000);
+ b43legacy_ilt_write(dev, 0x3C02, 0x000F);
+ b43legacy_ilt_write(dev, 0x3C03, 0x0014);
+
+ if (is_bcm_board_vendor(dev) &&
+ (dev->dev->bus->boardinfo.type == 0x0416) &&
+ (dev->dev->bus->sprom.board_rev == 0x0017))
+ return;
+
+ b43legacy_ilt_write(dev, 0x0401, 0x0002);
+ b43legacy_ilt_write(dev, 0x0402, 0x0001);
+ }
+}
+
+/* Initialize the APHY portion of a GPHY. */
+static void b43legacy_phy_inita(struct b43legacy_wldev *dev)
+{
+
+ might_sleep();
+
+ b43legacy_phy_setupg(dev);
+ if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_PACTRL)
+ b43legacy_phy_write(dev, 0x046E, 0x03CF);
+}
+
+static void b43legacy_phy_initb2(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 offset;
+ int val;
+
+ b43legacy_write16(dev, 0x03EC, 0x3F22);
+ b43legacy_phy_write(dev, 0x0020, 0x301C);
+ b43legacy_phy_write(dev, 0x0026, 0x0000);
+ b43legacy_phy_write(dev, 0x0030, 0x00C6);
+ b43legacy_phy_write(dev, 0x0088, 0x3E00);
+ val = 0x3C3D;
+ for (offset = 0x0089; offset < 0x00A7; offset++) {
+ b43legacy_phy_write(dev, offset, val);
+ val -= 0x0202;
+ }
+ b43legacy_phy_write(dev, 0x03E4, 0x3000);
+ b43legacy_radio_selectchannel(dev, phy->channel, 0);
+ if (phy->radio_ver != 0x2050) {
+ b43legacy_radio_write16(dev, 0x0075, 0x0080);
+ b43legacy_radio_write16(dev, 0x0079, 0x0081);
+ }
+ b43legacy_radio_write16(dev, 0x0050, 0x0020);
+ b43legacy_radio_write16(dev, 0x0050, 0x0023);
+ if (phy->radio_ver == 0x2050) {
+ b43legacy_radio_write16(dev, 0x0050, 0x0020);
+ b43legacy_radio_write16(dev, 0x005A, 0x0070);
+ b43legacy_radio_write16(dev, 0x005B, 0x007B);
+ b43legacy_radio_write16(dev, 0x005C, 0x00B0);
+ b43legacy_radio_write16(dev, 0x007A, 0x000F);
+ b43legacy_phy_write(dev, 0x0038, 0x0677);
+ b43legacy_radio_init2050(dev);
+ }
+ b43legacy_phy_write(dev, 0x0014, 0x0080);
+ b43legacy_phy_write(dev, 0x0032, 0x00CA);
+ b43legacy_phy_write(dev, 0x0032, 0x00CC);
+ b43legacy_phy_write(dev, 0x0035, 0x07C2);
+ b43legacy_phy_lo_b_measure(dev);
+ b43legacy_phy_write(dev, 0x0026, 0xCC00);
+ if (phy->radio_ver != 0x2050)
+ b43legacy_phy_write(dev, 0x0026, 0xCE00);
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, 0x1000);
+ b43legacy_phy_write(dev, 0x002A, 0x88A3);
+ if (phy->radio_ver != 0x2050)
+ b43legacy_phy_write(dev, 0x002A, 0x88C2);
+ b43legacy_radio_set_txpower_bg(dev, 0xFFFF, 0xFFFF, 0xFFFF);
+ b43legacy_phy_init_pctl(dev);
+}
+
+static void b43legacy_phy_initb4(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 offset;
+ u16 val;
+
+ b43legacy_write16(dev, 0x03EC, 0x3F22);
+ b43legacy_phy_write(dev, 0x0020, 0x301C);
+ b43legacy_phy_write(dev, 0x0026, 0x0000);
+ b43legacy_phy_write(dev, 0x0030, 0x00C6);
+ b43legacy_phy_write(dev, 0x0088, 0x3E00);
+ val = 0x3C3D;
+ for (offset = 0x0089; offset < 0x00A7; offset++) {
+ b43legacy_phy_write(dev, offset, val);
+ val -= 0x0202;
+ }
+ b43legacy_phy_write(dev, 0x03E4, 0x3000);
+ b43legacy_radio_selectchannel(dev, phy->channel, 0);
+ if (phy->radio_ver != 0x2050) {
+ b43legacy_radio_write16(dev, 0x0075, 0x0080);
+ b43legacy_radio_write16(dev, 0x0079, 0x0081);
+ }
+ b43legacy_radio_write16(dev, 0x0050, 0x0020);
+ b43legacy_radio_write16(dev, 0x0050, 0x0023);
+ if (phy->radio_ver == 0x2050) {
+ b43legacy_radio_write16(dev, 0x0050, 0x0020);
+ b43legacy_radio_write16(dev, 0x005A, 0x0070);
+ b43legacy_radio_write16(dev, 0x005B, 0x007B);
+ b43legacy_radio_write16(dev, 0x005C, 0x00B0);
+ b43legacy_radio_write16(dev, 0x007A, 0x000F);
+ b43legacy_phy_write(dev, 0x0038, 0x0677);
+ b43legacy_radio_init2050(dev);
+ }
+ b43legacy_phy_write(dev, 0x0014, 0x0080);
+ b43legacy_phy_write(dev, 0x0032, 0x00CA);
+ if (phy->radio_ver == 0x2050)
+ b43legacy_phy_write(dev, 0x0032, 0x00E0);
+ b43legacy_phy_write(dev, 0x0035, 0x07C2);
+
+ b43legacy_phy_lo_b_measure(dev);
+
+ b43legacy_phy_write(dev, 0x0026, 0xCC00);
+ if (phy->radio_ver == 0x2050)
+ b43legacy_phy_write(dev, 0x0026, 0xCE00);
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, 0x1100);
+ b43legacy_phy_write(dev, 0x002A, 0x88A3);
+ if (phy->radio_ver == 0x2050)
+ b43legacy_phy_write(dev, 0x002A, 0x88C2);
+ b43legacy_radio_set_txpower_bg(dev, 0xFFFF, 0xFFFF, 0xFFFF);
+ if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_RSSI) {
+ b43legacy_calc_nrssi_slope(dev);
+ b43legacy_calc_nrssi_threshold(dev);
+ }
+ b43legacy_phy_init_pctl(dev);
+}
+
+static void b43legacy_phy_initb5(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 offset;
+ u16 value;
+ u8 old_channel;
+
+ if (phy->analog == 1)
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A)
+ | 0x0050);
+ if (!is_bcm_board_vendor(dev) &&
+ (dev->dev->bus->boardinfo.type != 0x0416)) {
+ value = 0x2120;
+ for (offset = 0x00A8 ; offset < 0x00C7; offset++) {
+ b43legacy_phy_write(dev, offset, value);
+ value += 0x0202;
+ }
+ }
+ b43legacy_phy_write(dev, 0x0035,
+ (b43legacy_phy_read(dev, 0x0035) & 0xF0FF)
+ | 0x0700);
+ if (phy->radio_ver == 0x2050)
+ b43legacy_phy_write(dev, 0x0038, 0x0667);
+
+ if (phy->gmode) {
+ if (phy->radio_ver == 0x2050) {
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A)
+ | 0x0020);
+ b43legacy_radio_write16(dev, 0x0051,
+ b43legacy_radio_read16(dev, 0x0051)
+ | 0x0004);
+ }
+ b43legacy_write16(dev, B43legacy_MMIO_PHY_RADIO, 0x0000);
+
+ b43legacy_phy_write(dev, 0x0802, b43legacy_phy_read(dev, 0x0802)
+ | 0x0100);
+ b43legacy_phy_write(dev, 0x042B, b43legacy_phy_read(dev, 0x042B)
+ | 0x2000);
+
+ b43legacy_phy_write(dev, 0x001C, 0x186A);
+
+ b43legacy_phy_write(dev, 0x0013, (b43legacy_phy_read(dev,
+ 0x0013) & 0x00FF) | 0x1900);
+ b43legacy_phy_write(dev, 0x0035, (b43legacy_phy_read(dev,
+ 0x0035) & 0xFFC0) | 0x0064);
+ b43legacy_phy_write(dev, 0x005D, (b43legacy_phy_read(dev,
+ 0x005D) & 0xFF80) | 0x000A);
+ b43legacy_phy_write(dev, 0x5B, 0x0000);
+ b43legacy_phy_write(dev, 0x5C, 0x0000);
+ }
+
+ if (dev->bad_frames_preempt)
+ b43legacy_phy_write(dev, B43legacy_PHY_RADIO_BITFIELD,
+ b43legacy_phy_read(dev,
+ B43legacy_PHY_RADIO_BITFIELD) | (1 << 12));
+
+ if (phy->analog == 1) {
+ b43legacy_phy_write(dev, 0x0026, 0xCE00);
+ b43legacy_phy_write(dev, 0x0021, 0x3763);
+ b43legacy_phy_write(dev, 0x0022, 0x1BC3);
+ b43legacy_phy_write(dev, 0x0023, 0x06F9);
+ b43legacy_phy_write(dev, 0x0024, 0x037E);
+ } else
+ b43legacy_phy_write(dev, 0x0026, 0xCC00);
+ b43legacy_phy_write(dev, 0x0030, 0x00C6);
+ b43legacy_write16(dev, 0x03EC, 0x3F22);
+
+ if (phy->analog == 1)
+ b43legacy_phy_write(dev, 0x0020, 0x3E1C);
+ else
+ b43legacy_phy_write(dev, 0x0020, 0x301C);
+
+ if (phy->analog == 0)
+ b43legacy_write16(dev, 0x03E4, 0x3000);
+
+ old_channel = (phy->channel == 0xFF) ? 1 : phy->channel;
+ /* Force to channel 7, even if not supported. */
+ b43legacy_radio_selectchannel(dev, 7, 0);
+
+ if (phy->radio_ver != 0x2050) {
+ b43legacy_radio_write16(dev, 0x0075, 0x0080);
+ b43legacy_radio_write16(dev, 0x0079, 0x0081);
+ }
+
+ b43legacy_radio_write16(dev, 0x0050, 0x0020);
+ b43legacy_radio_write16(dev, 0x0050, 0x0023);
+
+ if (phy->radio_ver == 0x2050) {
+ b43legacy_radio_write16(dev, 0x0050, 0x0020);
+ b43legacy_radio_write16(dev, 0x005A, 0x0070);
+ }
+
+ b43legacy_radio_write16(dev, 0x005B, 0x007B);
+ b43legacy_radio_write16(dev, 0x005C, 0x00B0);
+
+ b43legacy_radio_write16(dev, 0x007A, b43legacy_radio_read16(dev,
+ 0x007A) | 0x0007);
+
+ b43legacy_radio_selectchannel(dev, old_channel, 0);
+
+ b43legacy_phy_write(dev, 0x0014, 0x0080);
+ b43legacy_phy_write(dev, 0x0032, 0x00CA);
+ b43legacy_phy_write(dev, 0x002A, 0x88A3);
+
+ b43legacy_radio_set_txpower_bg(dev, 0xFFFF, 0xFFFF, 0xFFFF);
+
+ if (phy->radio_ver == 0x2050)
+ b43legacy_radio_write16(dev, 0x005D, 0x000D);
+
+ b43legacy_write16(dev, 0x03E4, (b43legacy_read16(dev, 0x03E4) &
+ 0xFFC0) | 0x0004);
+}
+
+static void b43legacy_phy_initb6(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 offset;
+ u16 val;
+ u8 old_channel;
+
+ b43legacy_phy_write(dev, 0x003E, 0x817A);
+ b43legacy_radio_write16(dev, 0x007A,
+ (b43legacy_radio_read16(dev, 0x007A) | 0x0058));
+ if (phy->radio_rev == 4 ||
+ phy->radio_rev == 5) {
+ b43legacy_radio_write16(dev, 0x0051, 0x0037);
+ b43legacy_radio_write16(dev, 0x0052, 0x0070);
+ b43legacy_radio_write16(dev, 0x0053, 0x00B3);
+ b43legacy_radio_write16(dev, 0x0054, 0x009B);
+ b43legacy_radio_write16(dev, 0x005A, 0x0088);
+ b43legacy_radio_write16(dev, 0x005B, 0x0088);
+ b43legacy_radio_write16(dev, 0x005D, 0x0088);
+ b43legacy_radio_write16(dev, 0x005E, 0x0088);
+ b43legacy_radio_write16(dev, 0x007D, 0x0088);
+ b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
+ B43legacy_UCODEFLAGS_OFFSET,
+ (b43legacy_shm_read32(dev,
+ B43legacy_SHM_SHARED,
+ B43legacy_UCODEFLAGS_OFFSET)
+ | 0x00000200));
+ }
+ if (phy->radio_rev == 8) {
+ b43legacy_radio_write16(dev, 0x0051, 0x0000);
+ b43legacy_radio_write16(dev, 0x0052, 0x0040);
+ b43legacy_radio_write16(dev, 0x0053, 0x00B7);
+ b43legacy_radio_write16(dev, 0x0054, 0x0098);
+ b43legacy_radio_write16(dev, 0x005A, 0x0088);
+ b43legacy_radio_write16(dev, 0x005B, 0x006B);
+ b43legacy_radio_write16(dev, 0x005C, 0x000F);
+ if (dev->dev->bus->sprom.boardflags_lo & 0x8000) {
+ b43legacy_radio_write16(dev, 0x005D, 0x00FA);
+ b43legacy_radio_write16(dev, 0x005E, 0x00D8);
+ } else {
+ b43legacy_radio_write16(dev, 0x005D, 0x00F5);
+ b43legacy_radio_write16(dev, 0x005E, 0x00B8);
+ }
+ b43legacy_radio_write16(dev, 0x0073, 0x0003);
+ b43legacy_radio_write16(dev, 0x007D, 0x00A8);
+ b43legacy_radio_write16(dev, 0x007C, 0x0001);
+ b43legacy_radio_write16(dev, 0x007E, 0x0008);
+ }
+ val = 0x1E1F;
+ for (offset = 0x0088; offset < 0x0098; offset++) {
+ b43legacy_phy_write(dev, offset, val);
+ val -= 0x0202;
+ }
+ val = 0x3E3F;
+ for (offset = 0x0098; offset < 0x00A8; offset++) {
+ b43legacy_phy_write(dev, offset, val);
+ val -= 0x0202;
+ }
+ val = 0x2120;
+ for (offset = 0x00A8; offset < 0x00C8; offset++) {
+ b43legacy_phy_write(dev, offset, (val & 0x3F3F));
+ val += 0x0202;
+ }
+ if (phy->type == B43legacy_PHYTYPE_G) {
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A) |
+ 0x0020);
+ b43legacy_radio_write16(dev, 0x0051,
+ b43legacy_radio_read16(dev, 0x0051) |
+ 0x0004);
+ b43legacy_phy_write(dev, 0x0802,
+ b43legacy_phy_read(dev, 0x0802) | 0x0100);
+ b43legacy_phy_write(dev, 0x042B,
+ b43legacy_phy_read(dev, 0x042B) | 0x2000);
+ b43legacy_phy_write(dev, 0x5B, 0x0000);
+ b43legacy_phy_write(dev, 0x5C, 0x0000);
+ }
+
+ old_channel = phy->channel;
+ if (old_channel >= 8)
+ b43legacy_radio_selectchannel(dev, 1, 0);
+ else
+ b43legacy_radio_selectchannel(dev, 13, 0);
+
+ b43legacy_radio_write16(dev, 0x0050, 0x0020);
+ b43legacy_radio_write16(dev, 0x0050, 0x0023);
+ udelay(40);
+ if (phy->radio_rev < 6 || phy->radio_rev == 8) {
+ b43legacy_radio_write16(dev, 0x007C,
+ (b43legacy_radio_read16(dev, 0x007C)
+ | 0x0002));
+ b43legacy_radio_write16(dev, 0x0050, 0x0020);
+ }
+ if (phy->radio_rev <= 2) {
+ b43legacy_radio_write16(dev, 0x0050, 0x0020);
+ b43legacy_radio_write16(dev, 0x005A, 0x0070);
+ b43legacy_radio_write16(dev, 0x005B, 0x007B);
+ b43legacy_radio_write16(dev, 0x005C, 0x00B0);
+ }
+ b43legacy_radio_write16(dev, 0x007A,
+ (b43legacy_radio_read16(dev,
+ 0x007A) & 0x00F8) | 0x0007);
+
+ b43legacy_radio_selectchannel(dev, old_channel, 0);
+
+ b43legacy_phy_write(dev, 0x0014, 0x0200);
+ if (phy->radio_rev >= 6)
+ b43legacy_phy_write(dev, 0x002A, 0x88C2);
+ else
+ b43legacy_phy_write(dev, 0x002A, 0x8AC0);
+ b43legacy_phy_write(dev, 0x0038, 0x0668);
+ b43legacy_radio_set_txpower_bg(dev, 0xFFFF, 0xFFFF, 0xFFFF);
+ if (phy->radio_rev == 4 || phy->radio_rev == 5)
+ b43legacy_phy_write(dev, 0x005D, (b43legacy_phy_read(dev,
+ 0x005D) & 0xFF80) | 0x0003);
+ if (phy->radio_rev <= 2)
+ b43legacy_radio_write16(dev, 0x005D, 0x000D);
+
+ if (phy->analog == 4) {
+ b43legacy_write16(dev, 0x03E4, 0x0009);
+ b43legacy_phy_write(dev, 0x61, b43legacy_phy_read(dev, 0x61)
+ & 0xFFF);
+ } else
+ b43legacy_phy_write(dev, 0x0002, (b43legacy_phy_read(dev,
+ 0x0002) & 0xFFC0) | 0x0004);
+ if (phy->type == B43legacy_PHYTYPE_G)
+ b43legacy_write16(dev, 0x03E6, 0x0);
+ if (phy->type == B43legacy_PHYTYPE_B) {
+ b43legacy_write16(dev, 0x03E6, 0x8140);
+ b43legacy_phy_write(dev, 0x0016, 0x0410);
+ b43legacy_phy_write(dev, 0x0017, 0x0820);
+ b43legacy_phy_write(dev, 0x0062, 0x0007);
+ b43legacy_radio_init2050(dev);
+ b43legacy_phy_lo_g_measure(dev);
+ if (dev->dev->bus->sprom.boardflags_lo &
+ B43legacy_BFL_RSSI) {
+ b43legacy_calc_nrssi_slope(dev);
+ b43legacy_calc_nrssi_threshold(dev);
+ }
+ b43legacy_phy_init_pctl(dev);
+ }
+}
+
+static void b43legacy_calc_loopback_gain(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 backup_phy[15] = {0};
+ u16 backup_radio[3];
+ u16 backup_bband;
+ u16 i;
+ u16 loop1_cnt;
+ u16 loop1_done;
+ u16 loop1_omitted;
+ u16 loop2_done;
+
+ backup_phy[0] = b43legacy_phy_read(dev, 0x0429);
+ backup_phy[1] = b43legacy_phy_read(dev, 0x0001);
+ backup_phy[2] = b43legacy_phy_read(dev, 0x0811);
+ backup_phy[3] = b43legacy_phy_read(dev, 0x0812);
+ if (phy->rev != 1) {
+ backup_phy[4] = b43legacy_phy_read(dev, 0x0814);
+ backup_phy[5] = b43legacy_phy_read(dev, 0x0815);
+ }
+ backup_phy[6] = b43legacy_phy_read(dev, 0x005A);
+ backup_phy[7] = b43legacy_phy_read(dev, 0x0059);
+ backup_phy[8] = b43legacy_phy_read(dev, 0x0058);
+ backup_phy[9] = b43legacy_phy_read(dev, 0x000A);
+ backup_phy[10] = b43legacy_phy_read(dev, 0x0003);
+ backup_phy[11] = b43legacy_phy_read(dev, 0x080F);
+ backup_phy[12] = b43legacy_phy_read(dev, 0x0810);
+ backup_phy[13] = b43legacy_phy_read(dev, 0x002B);
+ backup_phy[14] = b43legacy_phy_read(dev, 0x0015);
+ b43legacy_phy_read(dev, 0x002D); /* dummy read */
+ backup_bband = phy->bbatt;
+ backup_radio[0] = b43legacy_radio_read16(dev, 0x0052);
+ backup_radio[1] = b43legacy_radio_read16(dev, 0x0043);
+ backup_radio[2] = b43legacy_radio_read16(dev, 0x007A);
+
+ b43legacy_phy_write(dev, 0x0429,
+ b43legacy_phy_read(dev, 0x0429) & 0x3FFF);
+ b43legacy_phy_write(dev, 0x0001,
+ b43legacy_phy_read(dev, 0x0001) & 0x8000);
+ b43legacy_phy_write(dev, 0x0811,
+ b43legacy_phy_read(dev, 0x0811) | 0x0002);
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_phy_read(dev, 0x0812) & 0xFFFD);
+ b43legacy_phy_write(dev, 0x0811,
+ b43legacy_phy_read(dev, 0x0811) | 0x0001);
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_phy_read(dev, 0x0812) & 0xFFFE);
+ if (phy->rev != 1) {
+ b43legacy_phy_write(dev, 0x0814,
+ b43legacy_phy_read(dev, 0x0814) | 0x0001);
+ b43legacy_phy_write(dev, 0x0815,
+ b43legacy_phy_read(dev, 0x0815) & 0xFFFE);
+ b43legacy_phy_write(dev, 0x0814,
+ b43legacy_phy_read(dev, 0x0814) | 0x0002);
+ b43legacy_phy_write(dev, 0x0815,
+ b43legacy_phy_read(dev, 0x0815) & 0xFFFD);
+ }
+ b43legacy_phy_write(dev, 0x0811, b43legacy_phy_read(dev, 0x0811) |
+ 0x000C);
+ b43legacy_phy_write(dev, 0x0812, b43legacy_phy_read(dev, 0x0812) |
+ 0x000C);
+
+ b43legacy_phy_write(dev, 0x0811, (b43legacy_phy_read(dev, 0x0811)
+ & 0xFFCF) | 0x0030);
+ b43legacy_phy_write(dev, 0x0812, (b43legacy_phy_read(dev, 0x0812)
+ & 0xFFCF) | 0x0010);
+
+ b43legacy_phy_write(dev, 0x005A, 0x0780);
+ b43legacy_phy_write(dev, 0x0059, 0xC810);
+ b43legacy_phy_write(dev, 0x0058, 0x000D);
+ if (phy->analog == 0)
+ b43legacy_phy_write(dev, 0x0003, 0x0122);
+ else
+ b43legacy_phy_write(dev, 0x000A,
+ b43legacy_phy_read(dev, 0x000A)
+ | 0x2000);
+ if (phy->rev != 1) {
+ b43legacy_phy_write(dev, 0x0814,
+ b43legacy_phy_read(dev, 0x0814) | 0x0004);
+ b43legacy_phy_write(dev, 0x0815,
+ b43legacy_phy_read(dev, 0x0815) & 0xFFFB);
+ }
+ b43legacy_phy_write(dev, 0x0003,
+ (b43legacy_phy_read(dev, 0x0003)
+ & 0xFF9F) | 0x0040);
+ if (phy->radio_ver == 0x2050 && phy->radio_rev == 2) {
+ b43legacy_radio_write16(dev, 0x0052, 0x0000);
+ b43legacy_radio_write16(dev, 0x0043,
+ (b43legacy_radio_read16(dev, 0x0043)
+ & 0xFFF0) | 0x0009);
+ loop1_cnt = 9;
+ } else if (phy->radio_rev == 8) {
+ b43legacy_radio_write16(dev, 0x0043, 0x000F);
+ loop1_cnt = 15;
+ } else
+ loop1_cnt = 0;
+
+ b43legacy_phy_set_baseband_attenuation(dev, 11);
+
+ if (phy->rev >= 3)
+ b43legacy_phy_write(dev, 0x080F, 0xC020);
+ else
+ b43legacy_phy_write(dev, 0x080F, 0x8020);
+ b43legacy_phy_write(dev, 0x0810, 0x0000);
+
+ b43legacy_phy_write(dev, 0x002B,
+ (b43legacy_phy_read(dev, 0x002B)
+ & 0xFFC0) | 0x0001);
+ b43legacy_phy_write(dev, 0x002B,
+ (b43legacy_phy_read(dev, 0x002B)
+ & 0xC0FF) | 0x0800);
+ b43legacy_phy_write(dev, 0x0811,
+ b43legacy_phy_read(dev, 0x0811) | 0x0100);
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_phy_read(dev, 0x0812) & 0xCFFF);
+ if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_EXTLNA) {
+ if (phy->rev >= 7) {
+ b43legacy_phy_write(dev, 0x0811,
+ b43legacy_phy_read(dev, 0x0811)
+ | 0x0800);
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_phy_read(dev, 0x0812)
+ | 0x8000);
+ }
+ }
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A)
+ & 0x00F7);
+
+ for (i = 0; i < loop1_cnt; i++) {
+ b43legacy_radio_write16(dev, 0x0043, loop1_cnt);
+ b43legacy_phy_write(dev, 0x0812,
+ (b43legacy_phy_read(dev, 0x0812)
+ & 0xF0FF) | (i << 8));
+ b43legacy_phy_write(dev, 0x0015,
+ (b43legacy_phy_read(dev, 0x0015)
+ & 0x0FFF) | 0xA000);
+ b43legacy_phy_write(dev, 0x0015,
+ (b43legacy_phy_read(dev, 0x0015)
+ & 0x0FFF) | 0xF000);
+ udelay(20);
+ if (b43legacy_phy_read(dev, 0x002D) >= 0x0DFC)
+ break;
+ }
+ loop1_done = i;
+ loop1_omitted = loop1_cnt - loop1_done;
+
+ loop2_done = 0;
+ if (loop1_done >= 8) {
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_phy_read(dev, 0x0812)
+ | 0x0030);
+ for (i = loop1_done - 8; i < 16; i++) {
+ b43legacy_phy_write(dev, 0x0812,
+ (b43legacy_phy_read(dev, 0x0812)
+ & 0xF0FF) | (i << 8));
+ b43legacy_phy_write(dev, 0x0015,
+ (b43legacy_phy_read(dev, 0x0015)
+ & 0x0FFF) | 0xA000);
+ b43legacy_phy_write(dev, 0x0015,
+ (b43legacy_phy_read(dev, 0x0015)
+ & 0x0FFF) | 0xF000);
+ udelay(20);
+ if (b43legacy_phy_read(dev, 0x002D) >= 0x0DFC)
+ break;
+ }
+ }
+
+ if (phy->rev != 1) {
+ b43legacy_phy_write(dev, 0x0814, backup_phy[4]);
+ b43legacy_phy_write(dev, 0x0815, backup_phy[5]);
+ }
+ b43legacy_phy_write(dev, 0x005A, backup_phy[6]);
+ b43legacy_phy_write(dev, 0x0059, backup_phy[7]);
+ b43legacy_phy_write(dev, 0x0058, backup_phy[8]);
+ b43legacy_phy_write(dev, 0x000A, backup_phy[9]);
+ b43legacy_phy_write(dev, 0x0003, backup_phy[10]);
+ b43legacy_phy_write(dev, 0x080F, backup_phy[11]);
+ b43legacy_phy_write(dev, 0x0810, backup_phy[12]);
+ b43legacy_phy_write(dev, 0x002B, backup_phy[13]);
+ b43legacy_phy_write(dev, 0x0015, backup_phy[14]);
+
+ b43legacy_phy_set_baseband_attenuation(dev, backup_bband);
+
+ b43legacy_radio_write16(dev, 0x0052, backup_radio[0]);
+ b43legacy_radio_write16(dev, 0x0043, backup_radio[1]);
+ b43legacy_radio_write16(dev, 0x007A, backup_radio[2]);
+
+ b43legacy_phy_write(dev, 0x0811, backup_phy[2] | 0x0003);
+ udelay(10);
+ b43legacy_phy_write(dev, 0x0811, backup_phy[2]);
+ b43legacy_phy_write(dev, 0x0812, backup_phy[3]);
+ b43legacy_phy_write(dev, 0x0429, backup_phy[0]);
+ b43legacy_phy_write(dev, 0x0001, backup_phy[1]);
+
+ phy->loopback_gain[0] = ((loop1_done * 6) - (loop1_omitted * 4)) - 11;
+ phy->loopback_gain[1] = (24 - (3 * loop2_done)) * 2;
+}
+
+static void b43legacy_phy_initg(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 tmp;
+
+ if (phy->rev == 1)
+ b43legacy_phy_initb5(dev);
+ else
+ b43legacy_phy_initb6(dev);
+ if (phy->rev >= 2 && phy->gmode)
+ b43legacy_phy_inita(dev);
+
+ if (phy->rev >= 2) {
+ b43legacy_phy_write(dev, 0x0814, 0x0000);
+ b43legacy_phy_write(dev, 0x0815, 0x0000);
+ }
+ if (phy->rev == 2) {
+ b43legacy_phy_write(dev, 0x0811, 0x0000);
+ b43legacy_phy_write(dev, 0x0015, 0x00C0);
+ }
+ if (phy->rev > 5) {
+ b43legacy_phy_write(dev, 0x0811, 0x0400);
+ b43legacy_phy_write(dev, 0x0015, 0x00C0);
+ }
+ if (phy->gmode) {
+ tmp = b43legacy_phy_read(dev, 0x0400) & 0xFF;
+ if (tmp == 3) {
+ b43legacy_phy_write(dev, 0x04C2, 0x1816);
+ b43legacy_phy_write(dev, 0x04C3, 0x8606);
+ }
+ if (tmp == 4 || tmp == 5) {
+ b43legacy_phy_write(dev, 0x04C2, 0x1816);
+ b43legacy_phy_write(dev, 0x04C3, 0x8006);
+ b43legacy_phy_write(dev, 0x04CC,
+ (b43legacy_phy_read(dev,
+ 0x04CC) & 0x00FF) |
+ 0x1F00);
+ }
+ if (phy->rev >= 2)
+ b43legacy_phy_write(dev, 0x047E, 0x0078);
+ }
+ if (phy->radio_rev == 8) {
+ b43legacy_phy_write(dev, 0x0801, b43legacy_phy_read(dev, 0x0801)
+ | 0x0080);
+ b43legacy_phy_write(dev, 0x043E, b43legacy_phy_read(dev, 0x043E)
+ | 0x0004);
+ }
+ if (phy->rev >= 2 && phy->gmode)
+ b43legacy_calc_loopback_gain(dev);
+ if (phy->radio_rev != 8) {
+ if (phy->initval == 0xFFFF)
+ phy->initval = b43legacy_radio_init2050(dev);
+ else
+ b43legacy_radio_write16(dev, 0x0078, phy->initval);
+ }
+ if (phy->txctl2 == 0xFFFF)
+ b43legacy_phy_lo_g_measure(dev);
+ else {
+ if (phy->radio_ver == 0x2050 && phy->radio_rev == 8)
+ b43legacy_radio_write16(dev, 0x0052,
+ (phy->txctl1 << 4) |
+ phy->txctl2);
+ else
+ b43legacy_radio_write16(dev, 0x0052,
+ (b43legacy_radio_read16(dev,
+ 0x0052) & 0xFFF0) |
+ phy->txctl1);
+ if (phy->rev >= 6)
+ b43legacy_phy_write(dev, 0x0036,
+ (b43legacy_phy_read(dev, 0x0036)
+ & 0x0FFF) | (phy->txctl2 << 12));
+ if (dev->dev->bus->sprom.boardflags_lo &
+ B43legacy_BFL_PACTRL)
+ b43legacy_phy_write(dev, 0x002E, 0x8075);
+ else
+ b43legacy_phy_write(dev, 0x002E, 0x807F);
+ if (phy->rev < 2)
+ b43legacy_phy_write(dev, 0x002F, 0x0101);
+ else
+ b43legacy_phy_write(dev, 0x002F, 0x0202);
+ }
+ if (phy->gmode) {
+ b43legacy_phy_lo_adjust(dev, 0);
+ b43legacy_phy_write(dev, 0x080F, 0x8078);
+ }
+
+ if (!(dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_RSSI)) {
+ /* The specs state to update the NRSSI LT with
+ * the value 0x7FFFFFFF here. I think that is some weird
+ * compiler optimization in the original driver.
+ * Essentially, what we do here is resetting all NRSSI LT
+ * entries to -32 (see the clamp_val() in nrssi_hw_update())
+ */
+ b43legacy_nrssi_hw_update(dev, 0xFFFF);
+ b43legacy_calc_nrssi_threshold(dev);
+ } else if (phy->gmode || phy->rev >= 2) {
+ if (phy->nrssi[0] == -1000) {
+ B43legacy_WARN_ON(phy->nrssi[1] != -1000);
+ b43legacy_calc_nrssi_slope(dev);
+ } else {
+ B43legacy_WARN_ON(phy->nrssi[1] == -1000);
+ b43legacy_calc_nrssi_threshold(dev);
+ }
+ }
+ if (phy->radio_rev == 8)
+ b43legacy_phy_write(dev, 0x0805, 0x3230);
+ b43legacy_phy_init_pctl(dev);
+ if (dev->dev->bus->chip_id == 0x4306
+ && dev->dev->bus->chip_package == 2) {
+ b43legacy_phy_write(dev, 0x0429,
+ b43legacy_phy_read(dev, 0x0429) & 0xBFFF);
+ b43legacy_phy_write(dev, 0x04C3,
+ b43legacy_phy_read(dev, 0x04C3) & 0x7FFF);
+ }
+}
+
+static u16 b43legacy_phy_lo_b_r15_loop(struct b43legacy_wldev *dev)
+{
+ int i;
+ u16 ret = 0;
+ unsigned long flags;
+
+ local_irq_save(flags);
+ for (i = 0; i < 10; i++) {
+ b43legacy_phy_write(dev, 0x0015, 0xAFA0);
+ udelay(1);
+ b43legacy_phy_write(dev, 0x0015, 0xEFA0);
+ udelay(10);
+ b43legacy_phy_write(dev, 0x0015, 0xFFA0);
+ udelay(40);
+ ret += b43legacy_phy_read(dev, 0x002C);
+ }
+ local_irq_restore(flags);
+ b43legacy_voluntary_preempt();
+
+ return ret;
+}
+
+void b43legacy_phy_lo_b_measure(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 regstack[12] = { 0 };
+ u16 mls;
+ u16 fval;
+ int i;
+ int j;
+
+ regstack[0] = b43legacy_phy_read(dev, 0x0015);
+ regstack[1] = b43legacy_radio_read16(dev, 0x0052) & 0xFFF0;
+
+ if (phy->radio_ver == 0x2053) {
+ regstack[2] = b43legacy_phy_read(dev, 0x000A);
+ regstack[3] = b43legacy_phy_read(dev, 0x002A);
+ regstack[4] = b43legacy_phy_read(dev, 0x0035);
+ regstack[5] = b43legacy_phy_read(dev, 0x0003);
+ regstack[6] = b43legacy_phy_read(dev, 0x0001);
+ regstack[7] = b43legacy_phy_read(dev, 0x0030);
+
+ regstack[8] = b43legacy_radio_read16(dev, 0x0043);
+ regstack[9] = b43legacy_radio_read16(dev, 0x007A);
+ regstack[10] = b43legacy_read16(dev, 0x03EC);
+ regstack[11] = b43legacy_radio_read16(dev, 0x0052) & 0x00F0;
+
+ b43legacy_phy_write(dev, 0x0030, 0x00FF);
+ b43legacy_write16(dev, 0x03EC, 0x3F3F);
+ b43legacy_phy_write(dev, 0x0035, regstack[4] & 0xFF7F);
+ b43legacy_radio_write16(dev, 0x007A, regstack[9] & 0xFFF0);
+ }
+ b43legacy_phy_write(dev, 0x0015, 0xB000);
+ b43legacy_phy_write(dev, 0x002B, 0x0004);
+
+ if (phy->radio_ver == 0x2053) {
+ b43legacy_phy_write(dev, 0x002B, 0x0203);
+ b43legacy_phy_write(dev, 0x002A, 0x08A3);
+ }
+
+ phy->minlowsig[0] = 0xFFFF;
+
+ for (i = 0; i < 4; i++) {
+ b43legacy_radio_write16(dev, 0x0052, regstack[1] | i);
+ b43legacy_phy_lo_b_r15_loop(dev);
+ }
+ for (i = 0; i < 10; i++) {
+ b43legacy_radio_write16(dev, 0x0052, regstack[1] | i);
+ mls = b43legacy_phy_lo_b_r15_loop(dev) / 10;
+ if (mls < phy->minlowsig[0]) {
+ phy->minlowsig[0] = mls;
+ phy->minlowsigpos[0] = i;
+ }
+ }
+ b43legacy_radio_write16(dev, 0x0052, regstack[1]
+ | phy->minlowsigpos[0]);
+
+ phy->minlowsig[1] = 0xFFFF;
+
+ for (i = -4; i < 5; i += 2) {
+ for (j = -4; j < 5; j += 2) {
+ if (j < 0)
+ fval = (0x0100 * i) + j + 0x0100;
+ else
+ fval = (0x0100 * i) + j;
+ b43legacy_phy_write(dev, 0x002F, fval);
+ mls = b43legacy_phy_lo_b_r15_loop(dev) / 10;
+ if (mls < phy->minlowsig[1]) {
+ phy->minlowsig[1] = mls;
+ phy->minlowsigpos[1] = fval;
+ }
+ }
+ }
+ phy->minlowsigpos[1] += 0x0101;
+
+ b43legacy_phy_write(dev, 0x002F, phy->minlowsigpos[1]);
+ if (phy->radio_ver == 0x2053) {
+ b43legacy_phy_write(dev, 0x000A, regstack[2]);
+ b43legacy_phy_write(dev, 0x002A, regstack[3]);
+ b43legacy_phy_write(dev, 0x0035, regstack[4]);
+ b43legacy_phy_write(dev, 0x0003, regstack[5]);
+ b43legacy_phy_write(dev, 0x0001, regstack[6]);
+ b43legacy_phy_write(dev, 0x0030, regstack[7]);
+
+ b43legacy_radio_write16(dev, 0x0043, regstack[8]);
+ b43legacy_radio_write16(dev, 0x007A, regstack[9]);
+
+ b43legacy_radio_write16(dev, 0x0052,
+ (b43legacy_radio_read16(dev, 0x0052)
+ & 0x000F) | regstack[11]);
+
+ b43legacy_write16(dev, 0x03EC, regstack[10]);
+ }
+ b43legacy_phy_write(dev, 0x0015, regstack[0]);
+}
+
+static inline
+u16 b43legacy_phy_lo_g_deviation_subval(struct b43legacy_wldev *dev,
+ u16 control)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 ret;
+ unsigned long flags;
+
+ local_irq_save(flags);
+ if (phy->gmode) {
+ b43legacy_phy_write(dev, 0x15, 0xE300);
+ control <<= 8;
+ b43legacy_phy_write(dev, 0x0812, control | 0x00B0);
+ udelay(5);
+ b43legacy_phy_write(dev, 0x0812, control | 0x00B2);
+ udelay(2);
+ b43legacy_phy_write(dev, 0x0812, control | 0x00B3);
+ udelay(4);
+ b43legacy_phy_write(dev, 0x0015, 0xF300);
+ udelay(8);
+ } else {
+ b43legacy_phy_write(dev, 0x0015, control | 0xEFA0);
+ udelay(2);
+ b43legacy_phy_write(dev, 0x0015, control | 0xEFE0);
+ udelay(4);
+ b43legacy_phy_write(dev, 0x0015, control | 0xFFE0);
+ udelay(8);
+ }
+ ret = b43legacy_phy_read(dev, 0x002D);
+ local_irq_restore(flags);
+ b43legacy_voluntary_preempt();
+
+ return ret;
+}
+
+static u32 b43legacy_phy_lo_g_singledeviation(struct b43legacy_wldev *dev,
+ u16 control)
+{
+ int i;
+ u32 ret = 0;
+
+ for (i = 0; i < 8; i++)
+ ret += b43legacy_phy_lo_g_deviation_subval(dev, control);
+
+ return ret;
+}
+
+/* Write the LocalOscillator CONTROL */
+static inline
+void b43legacy_lo_write(struct b43legacy_wldev *dev,
+ struct b43legacy_lopair *pair)
+{
+ u16 value;
+
+ value = (u8)(pair->low);
+ value |= ((u8)(pair->high)) << 8;
+
+#ifdef CONFIG_B43LEGACY_DEBUG
+ /* Sanity check. */
+ if (pair->low < -8 || pair->low > 8 ||
+ pair->high < -8 || pair->high > 8) {
+ b43legacydbg(dev->wl,
+ "WARNING: Writing invalid LOpair "
+ "(low: %d, high: %d)\n",
+ pair->low, pair->high);
+ dump_stack();
+ }
+#endif
+
+ b43legacy_phy_write(dev, B43legacy_PHY_G_LO_CONTROL, value);
+}
+
+static inline
+struct b43legacy_lopair *b43legacy_find_lopair(struct b43legacy_wldev *dev,
+ u16 bbatt,
+ u16 rfatt,
+ u16 tx)
+{
+ static const u8 dict[10] = { 11, 10, 11, 12, 13, 12, 13, 12, 13, 12 };
+ struct b43legacy_phy *phy = &dev->phy;
+
+ if (bbatt > 6)
+ bbatt = 6;
+ B43legacy_WARN_ON(rfatt >= 10);
+
+ if (tx == 3)
+ return b43legacy_get_lopair(phy, rfatt, bbatt);
+ return b43legacy_get_lopair(phy, dict[rfatt], bbatt);
+}
+
+static inline
+struct b43legacy_lopair *b43legacy_current_lopair(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+
+ return b43legacy_find_lopair(dev, phy->bbatt,
+ phy->rfatt, phy->txctl1);
+}
+
+/* Adjust B/G LO */
+void b43legacy_phy_lo_adjust(struct b43legacy_wldev *dev, int fixed)
+{
+ struct b43legacy_lopair *pair;
+
+ if (fixed) {
+ /* Use fixed values. Only for initialization. */
+ pair = b43legacy_find_lopair(dev, 2, 3, 0);
+ } else
+ pair = b43legacy_current_lopair(dev);
+ b43legacy_lo_write(dev, pair);
+}
+
+static void b43legacy_phy_lo_g_measure_txctl2(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 txctl2 = 0;
+ u16 i;
+ u32 smallest;
+ u32 tmp;
+
+ b43legacy_radio_write16(dev, 0x0052, 0x0000);
+ udelay(10);
+ smallest = b43legacy_phy_lo_g_singledeviation(dev, 0);
+ for (i = 0; i < 16; i++) {
+ b43legacy_radio_write16(dev, 0x0052, i);
+ udelay(10);
+ tmp = b43legacy_phy_lo_g_singledeviation(dev, 0);
+ if (tmp < smallest) {
+ smallest = tmp;
+ txctl2 = i;
+ }
+ }
+ phy->txctl2 = txctl2;
+}
+
+static
+void b43legacy_phy_lo_g_state(struct b43legacy_wldev *dev,
+ const struct b43legacy_lopair *in_pair,
+ struct b43legacy_lopair *out_pair,
+ u16 r27)
+{
+ static const struct b43legacy_lopair transitions[8] = {
+ { .high = 1, .low = 1, },
+ { .high = 1, .low = 0, },
+ { .high = 1, .low = -1, },
+ { .high = 0, .low = -1, },
+ { .high = -1, .low = -1, },
+ { .high = -1, .low = 0, },
+ { .high = -1, .low = 1, },
+ { .high = 0, .low = 1, },
+ };
+ struct b43legacy_lopair lowest_transition = {
+ .high = in_pair->high,
+ .low = in_pair->low,
+ };
+ struct b43legacy_lopair tmp_pair;
+ struct b43legacy_lopair transition;
+ int i = 12;
+ int state = 0;
+ int found_lower;
+ int j;
+ int begin;
+ int end;
+ u32 lowest_deviation;
+ u32 tmp;
+
+ /* Note that in_pair and out_pair can point to the same pair.
+ * Be careful. */
+
+ b43legacy_lo_write(dev, &lowest_transition);
+ lowest_deviation = b43legacy_phy_lo_g_singledeviation(dev, r27);
+ do {
+ found_lower = 0;
+ B43legacy_WARN_ON(!(state >= 0 && state <= 8));
+ if (state == 0) {
+ begin = 1;
+ end = 8;
+ } else if (state % 2 == 0) {
+ begin = state - 1;
+ end = state + 1;
+ } else {
+ begin = state - 2;
+ end = state + 2;
+ }
+ if (begin < 1)
+ begin += 8;
+ if (end > 8)
+ end -= 8;
+
+ j = begin;
+ tmp_pair.high = lowest_transition.high;
+ tmp_pair.low = lowest_transition.low;
+ while (1) {
+ B43legacy_WARN_ON(!(j >= 1 && j <= 8));
+ transition.high = tmp_pair.high +
+ transitions[j - 1].high;
+ transition.low = tmp_pair.low + transitions[j - 1].low;
+ if ((abs(transition.low) < 9)
+ && (abs(transition.high) < 9)) {
+ b43legacy_lo_write(dev, &transition);
+ tmp = b43legacy_phy_lo_g_singledeviation(dev,
+ r27);
+ if (tmp < lowest_deviation) {
+ lowest_deviation = tmp;
+ state = j;
+ found_lower = 1;
+
+ lowest_transition.high =
+ transition.high;
+ lowest_transition.low = transition.low;
+ }
+ }
+ if (j == end)
+ break;
+ if (j == 8)
+ j = 1;
+ else
+ j++;
+ }
+ } while (i-- && found_lower);
+
+ out_pair->high = lowest_transition.high;
+ out_pair->low = lowest_transition.low;
+}
+
+/* Set the baseband attenuation value on chip. */
+void b43legacy_phy_set_baseband_attenuation(struct b43legacy_wldev *dev,
+ u16 bbatt)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 value;
+
+ if (phy->analog == 0) {
+ value = (b43legacy_read16(dev, 0x03E6) & 0xFFF0);
+ value |= (bbatt & 0x000F);
+ b43legacy_write16(dev, 0x03E6, value);
+ return;
+ }
+
+ if (phy->analog > 1) {
+ value = b43legacy_phy_read(dev, 0x0060) & 0xFFC3;
+ value |= (bbatt << 2) & 0x003C;
+ } else {
+ value = b43legacy_phy_read(dev, 0x0060) & 0xFF87;
+ value |= (bbatt << 3) & 0x0078;
+ }
+ b43legacy_phy_write(dev, 0x0060, value);
+}
+
+/* http://bcm-specs.sipsolutions.net/LocalOscillator/Measure */
+void b43legacy_phy_lo_g_measure(struct b43legacy_wldev *dev)
+{
+ static const u8 pairorder[10] = { 3, 1, 5, 7, 9, 2, 0, 4, 6, 8 };
+ const int is_initializing = (b43legacy_status(dev)
+ < B43legacy_STAT_STARTED);
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 h;
+ u16 i;
+ u16 oldi = 0;
+ u16 j;
+ struct b43legacy_lopair control;
+ struct b43legacy_lopair *tmp_control;
+ u16 tmp;
+ u16 regstack[16] = { 0 };
+ u8 oldchannel;
+
+ /* XXX: What are these? */
+ u8 r27 = 0;
+ u16 r31;
+
+ oldchannel = phy->channel;
+ /* Setup */
+ if (phy->gmode) {
+ regstack[0] = b43legacy_phy_read(dev, B43legacy_PHY_G_CRS);
+ regstack[1] = b43legacy_phy_read(dev, 0x0802);
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS, regstack[0]
+ & 0x7FFF);
+ b43legacy_phy_write(dev, 0x0802, regstack[1] & 0xFFFC);
+ }
+ regstack[3] = b43legacy_read16(dev, 0x03E2);
+ b43legacy_write16(dev, 0x03E2, regstack[3] | 0x8000);
+ regstack[4] = b43legacy_read16(dev, B43legacy_MMIO_CHANNEL_EXT);
+ regstack[5] = b43legacy_phy_read(dev, 0x15);
+ regstack[6] = b43legacy_phy_read(dev, 0x2A);
+ regstack[7] = b43legacy_phy_read(dev, 0x35);
+ regstack[8] = b43legacy_phy_read(dev, 0x60);
+ regstack[9] = b43legacy_radio_read16(dev, 0x43);
+ regstack[10] = b43legacy_radio_read16(dev, 0x7A);
+ regstack[11] = b43legacy_radio_read16(dev, 0x52);
+ if (phy->gmode) {
+ regstack[12] = b43legacy_phy_read(dev, 0x0811);
+ regstack[13] = b43legacy_phy_read(dev, 0x0812);
+ regstack[14] = b43legacy_phy_read(dev, 0x0814);
+ regstack[15] = b43legacy_phy_read(dev, 0x0815);
+ }
+ b43legacy_radio_selectchannel(dev, 6, 0);
+ if (phy->gmode) {
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS, regstack[0]
+ & 0x7FFF);
+ b43legacy_phy_write(dev, 0x0802, regstack[1] & 0xFFFC);
+ b43legacy_dummy_transmission(dev);
+ }
+ b43legacy_radio_write16(dev, 0x0043, 0x0006);
+
+ b43legacy_phy_set_baseband_attenuation(dev, 2);
+
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, 0x0000);
+ b43legacy_phy_write(dev, 0x002E, 0x007F);
+ b43legacy_phy_write(dev, 0x080F, 0x0078);
+ b43legacy_phy_write(dev, 0x0035, regstack[7] & ~(1 << 7));
+ b43legacy_radio_write16(dev, 0x007A, regstack[10] & 0xFFF0);
+ b43legacy_phy_write(dev, 0x002B, 0x0203);
+ b43legacy_phy_write(dev, 0x002A, 0x08A3);
+ if (phy->gmode) {
+ b43legacy_phy_write(dev, 0x0814, regstack[14] | 0x0003);
+ b43legacy_phy_write(dev, 0x0815, regstack[15] & 0xFFFC);
+ b43legacy_phy_write(dev, 0x0811, 0x01B3);
+ b43legacy_phy_write(dev, 0x0812, 0x00B2);
+ }
+ if (is_initializing)
+ b43legacy_phy_lo_g_measure_txctl2(dev);
+ b43legacy_phy_write(dev, 0x080F, 0x8078);
+
+ /* Measure */
+ control.low = 0;
+ control.high = 0;
+ for (h = 0; h < 10; h++) {
+ /* Loop over each possible RadioAttenuation (0-9) */
+ i = pairorder[h];
+ if (is_initializing) {
+ if (i == 3) {
+ control.low = 0;
+ control.high = 0;
+ } else if (((i % 2 == 1) && (oldi % 2 == 1)) ||
+ ((i % 2 == 0) && (oldi % 2 == 0))) {
+ tmp_control = b43legacy_get_lopair(phy, oldi,
+ 0);
+ memcpy(&control, tmp_control, sizeof(control));
+ } else {
+ tmp_control = b43legacy_get_lopair(phy, 3, 0);
+ memcpy(&control, tmp_control, sizeof(control));
+ }
+ }
+ /* Loop over each possible BasebandAttenuation/2 */
+ for (j = 0; j < 4; j++) {
+ if (is_initializing) {
+ tmp = i * 2 + j;
+ r27 = 0;
+ r31 = 0;
+ if (tmp > 14) {
+ r31 = 1;
+ if (tmp > 17)
+ r27 = 1;
+ if (tmp > 19)
+ r27 = 2;
+ }
+ } else {
+ tmp_control = b43legacy_get_lopair(phy, i,
+ j * 2);
+ if (!tmp_control->used)
+ continue;
+ memcpy(&control, tmp_control, sizeof(control));
+ r27 = 3;
+ r31 = 0;
+ }
+ b43legacy_radio_write16(dev, 0x43, i);
+ b43legacy_radio_write16(dev, 0x52, phy->txctl2);
+ udelay(10);
+ b43legacy_voluntary_preempt();
+
+ b43legacy_phy_set_baseband_attenuation(dev, j * 2);
+
+ tmp = (regstack[10] & 0xFFF0);
+ if (r31)
+ tmp |= 0x0008;
+ b43legacy_radio_write16(dev, 0x007A, tmp);
+
+ tmp_control = b43legacy_get_lopair(phy, i, j * 2);
+ b43legacy_phy_lo_g_state(dev, &control, tmp_control,
+ r27);
+ }
+ oldi = i;
+ }
+ /* Loop over each possible RadioAttenuation (10-13) */
+ for (i = 10; i < 14; i++) {
+ /* Loop over each possible BasebandAttenuation/2 */
+ for (j = 0; j < 4; j++) {
+ if (is_initializing) {
+ tmp_control = b43legacy_get_lopair(phy, i - 9,
+ j * 2);
+ memcpy(&control, tmp_control, sizeof(control));
+ /* FIXME: The next line is wrong, as the
+ * following if statement can never trigger. */
+ tmp = (i - 9) * 2 + j - 5;
+ r27 = 0;
+ r31 = 0;
+ if (tmp > 14) {
+ r31 = 1;
+ if (tmp > 17)
+ r27 = 1;
+ if (tmp > 19)
+ r27 = 2;
+ }
+ } else {
+ tmp_control = b43legacy_get_lopair(phy, i - 9,
+ j * 2);
+ if (!tmp_control->used)
+ continue;
+ memcpy(&control, tmp_control, sizeof(control));
+ r27 = 3;
+ r31 = 0;
+ }
+ b43legacy_radio_write16(dev, 0x43, i - 9);
+ /* FIXME: shouldn't txctl1 be zero in the next line
+ * and 3 in the loop above? */
+ b43legacy_radio_write16(dev, 0x52,
+ phy->txctl2
+ | (3/*txctl1*/ << 4));
+ udelay(10);
+ b43legacy_voluntary_preempt();
+
+ b43legacy_phy_set_baseband_attenuation(dev, j * 2);
+
+ tmp = (regstack[10] & 0xFFF0);
+ if (r31)
+ tmp |= 0x0008;
+ b43legacy_radio_write16(dev, 0x7A, tmp);
+
+ tmp_control = b43legacy_get_lopair(phy, i, j * 2);
+ b43legacy_phy_lo_g_state(dev, &control, tmp_control,
+ r27);
+ }
+ }
+
+ /* Restoration */
+ if (phy->gmode) {
+ b43legacy_phy_write(dev, 0x0015, 0xE300);
+ b43legacy_phy_write(dev, 0x0812, (r27 << 8) | 0xA0);
+ udelay(5);
+ b43legacy_phy_write(dev, 0x0812, (r27 << 8) | 0xA2);
+ udelay(2);
+ b43legacy_phy_write(dev, 0x0812, (r27 << 8) | 0xA3);
+ b43legacy_voluntary_preempt();
+ } else
+ b43legacy_phy_write(dev, 0x0015, r27 | 0xEFA0);
+ b43legacy_phy_lo_adjust(dev, is_initializing);
+ b43legacy_phy_write(dev, 0x002E, 0x807F);
+ if (phy->gmode)
+ b43legacy_phy_write(dev, 0x002F, 0x0202);
+ else
+ b43legacy_phy_write(dev, 0x002F, 0x0101);
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, regstack[4]);
+ b43legacy_phy_write(dev, 0x0015, regstack[5]);
+ b43legacy_phy_write(dev, 0x002A, regstack[6]);
+ b43legacy_phy_write(dev, 0x0035, regstack[7]);
+ b43legacy_phy_write(dev, 0x0060, regstack[8]);
+ b43legacy_radio_write16(dev, 0x0043, regstack[9]);
+ b43legacy_radio_write16(dev, 0x007A, regstack[10]);
+ regstack[11] &= 0x00F0;
+ regstack[11] |= (b43legacy_radio_read16(dev, 0x52) & 0x000F);
+ b43legacy_radio_write16(dev, 0x52, regstack[11]);
+ b43legacy_write16(dev, 0x03E2, regstack[3]);
+ if (phy->gmode) {
+ b43legacy_phy_write(dev, 0x0811, regstack[12]);
+ b43legacy_phy_write(dev, 0x0812, regstack[13]);
+ b43legacy_phy_write(dev, 0x0814, regstack[14]);
+ b43legacy_phy_write(dev, 0x0815, regstack[15]);
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS, regstack[0]);
+ b43legacy_phy_write(dev, 0x0802, regstack[1]);
+ }
+ b43legacy_radio_selectchannel(dev, oldchannel, 1);
+
+#ifdef CONFIG_B43LEGACY_DEBUG
+ {
+ /* Sanity check for all lopairs. */
+ for (i = 0; i < B43legacy_LO_COUNT; i++) {
+ tmp_control = phy->_lo_pairs + i;
+ if (tmp_control->low < -8 || tmp_control->low > 8 ||
+ tmp_control->high < -8 || tmp_control->high > 8)
+ b43legacywarn(dev->wl,
+ "WARNING: Invalid LOpair (low: %d, high:"
+ " %d, index: %d)\n",
+ tmp_control->low, tmp_control->high, i);
+ }
+ }
+#endif /* CONFIG_B43LEGACY_DEBUG */
+}
+
+static
+void b43legacy_phy_lo_mark_current_used(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_lopair *pair;
+
+ pair = b43legacy_current_lopair(dev);
+ pair->used = 1;
+}
+
+void b43legacy_phy_lo_mark_all_unused(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ struct b43legacy_lopair *pair;
+ int i;
+
+ for (i = 0; i < B43legacy_LO_COUNT; i++) {
+ pair = phy->_lo_pairs + i;
+ pair->used = 0;
+ }
+}
+
+/* http://bcm-specs.sipsolutions.net/EstimatePowerOut
+ * This function converts a TSSI value to dBm in Q5.2
+ */
+static s8 b43legacy_phy_estimate_power_out(struct b43legacy_wldev *dev, s8 tssi)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ s8 dbm = 0;
+ s32 tmp;
+
+ tmp = phy->idle_tssi;
+ tmp += tssi;
+ tmp -= phy->savedpctlreg;
+
+ switch (phy->type) {
+ case B43legacy_PHYTYPE_B:
+ case B43legacy_PHYTYPE_G:
+ tmp = clamp_val(tmp, 0x00, 0x3F);
+ dbm = phy->tssi2dbm[tmp];
+ break;
+ default:
+ B43legacy_BUG_ON(1);
+ }
+
+ return dbm;
+}
+
+/* http://bcm-specs.sipsolutions.net/RecalculateTransmissionPower */
+void b43legacy_phy_xmitpower(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 tmp;
+ u16 txpower;
+ s8 v0;
+ s8 v1;
+ s8 v2;
+ s8 v3;
+ s8 average;
+ int max_pwr;
+ s16 desired_pwr;
+ s16 estimated_pwr;
+ s16 pwr_adjust;
+ s16 radio_att_delta;
+ s16 baseband_att_delta;
+ s16 radio_attenuation;
+ s16 baseband_attenuation;
+
+ if (phy->savedpctlreg == 0xFFFF)
+ return;
+ if ((dev->dev->bus->boardinfo.type == 0x0416) &&
+ is_bcm_board_vendor(dev))
+ return;
+#ifdef CONFIG_B43LEGACY_DEBUG
+ if (phy->manual_txpower_control)
+ return;
+#endif
+
+ B43legacy_BUG_ON(!(phy->type == B43legacy_PHYTYPE_B ||
+ phy->type == B43legacy_PHYTYPE_G));
+ tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x0058);
+ v0 = (s8)(tmp & 0x00FF);
+ v1 = (s8)((tmp & 0xFF00) >> 8);
+ tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x005A);
+ v2 = (s8)(tmp & 0x00FF);
+ v3 = (s8)((tmp & 0xFF00) >> 8);
+ tmp = 0;
+
+ if (v0 == 0x7F || v1 == 0x7F || v2 == 0x7F || v3 == 0x7F) {
+ tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
+ 0x0070);
+ v0 = (s8)(tmp & 0x00FF);
+ v1 = (s8)((tmp & 0xFF00) >> 8);
+ tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
+ 0x0072);
+ v2 = (s8)(tmp & 0x00FF);
+ v3 = (s8)((tmp & 0xFF00) >> 8);
+ if (v0 == 0x7F || v1 == 0x7F || v2 == 0x7F || v3 == 0x7F)
+ return;
+ v0 = (v0 + 0x20) & 0x3F;
+ v1 = (v1 + 0x20) & 0x3F;
+ v2 = (v2 + 0x20) & 0x3F;
+ v3 = (v3 + 0x20) & 0x3F;
+ tmp = 1;
+ }
+ b43legacy_radio_clear_tssi(dev);
+
+ average = (v0 + v1 + v2 + v3 + 2) / 4;
+
+ if (tmp && (b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x005E)
+ & 0x8))
+ average -= 13;
+
+ estimated_pwr = b43legacy_phy_estimate_power_out(dev, average);
+
+ max_pwr = dev->dev->bus->sprom.maxpwr_bg;
+
+ if ((dev->dev->bus->sprom.boardflags_lo
+ & B43legacy_BFL_PACTRL) &&
+ (phy->type == B43legacy_PHYTYPE_G))
+ max_pwr -= 0x3;
+ if (unlikely(max_pwr <= 0)) {
+ b43legacywarn(dev->wl, "Invalid max-TX-power value in SPROM."
+ "\n");
+ max_pwr = 74; /* fake it */
+ dev->dev->bus->sprom.maxpwr_bg = max_pwr;
+ }
+
+ /* Use regulatory information to get the maximum power.
+ * In the absence of such data from mac80211, we will use 20 dBm, which
+ * is the value for the EU, US, Canada, and most of the world.
+ * The regulatory maximum is reduced by the antenna gain (from sprom)
+ * and 1.5 dBm (a safety factor??). The result is in Q5.2 format
+ * which accounts for the factor of 4 */
+#define REG_MAX_PWR 20
+ max_pwr = min(REG_MAX_PWR * 4
+ - dev->dev->bus->sprom.antenna_gain.a0
+ - 0x6, max_pwr);
+
+ /* find the desired power in Q5.2 - power_level is in dBm
+ * and limit it - max_pwr is already in Q5.2 */
+ desired_pwr = clamp_val(phy->power_level << 2, 0, max_pwr);
+ if (b43legacy_debug(dev, B43legacy_DBG_XMITPOWER))
+ b43legacydbg(dev->wl, "Current TX power output: " Q52_FMT
+ " dBm, Desired TX power output: " Q52_FMT
+ " dBm\n", Q52_ARG(estimated_pwr),
+ Q52_ARG(desired_pwr));
+ /* Check if we need to adjust the current power. The factor of 2 is
+ * for damping */
+ pwr_adjust = (desired_pwr - estimated_pwr) / 2;
+ /* RF attenuation delta
+ * The minus sign is because lower attenuation => more power */
+ radio_att_delta = -(pwr_adjust + 7) >> 3;
+ /* Baseband attenuation delta */
+ baseband_att_delta = -(pwr_adjust >> 1) - (4 * radio_att_delta);
+ /* Do we need to adjust anything? */
+ if ((radio_att_delta == 0) && (baseband_att_delta == 0)) {
+ b43legacy_phy_lo_mark_current_used(dev);
+ return;
+ }
+
+ /* Calculate the new attenuation values. */
+ baseband_attenuation = phy->bbatt;
+ baseband_attenuation += baseband_att_delta;
+ radio_attenuation = phy->rfatt;
+ radio_attenuation += radio_att_delta;
+
+ /* Get baseband and radio attenuation values into permitted ranges.
+ * baseband 0-11, radio 0-9.
+ * Radio attenuation affects power level 4 times as much as baseband.
+ */
+ if (radio_attenuation < 0) {
+ baseband_attenuation -= (4 * -radio_attenuation);
+ radio_attenuation = 0;
+ } else if (radio_attenuation > 9) {
+ baseband_attenuation += (4 * (radio_attenuation - 9));
+ radio_attenuation = 9;
+ } else {
+ while (baseband_attenuation < 0 && radio_attenuation > 0) {
+ baseband_attenuation += 4;
+ radio_attenuation--;
+ }
+ while (baseband_attenuation > 11 && radio_attenuation < 9) {
+ baseband_attenuation -= 4;
+ radio_attenuation++;
+ }
+ }
+ baseband_attenuation = clamp_val(baseband_attenuation, 0, 11);
+
+ txpower = phy->txctl1;
+ if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 2)) {
+ if (radio_attenuation <= 1) {
+ if (txpower == 0) {
+ txpower = 3;
+ radio_attenuation += 2;
+ baseband_attenuation += 2;
+ } else if (dev->dev->bus->sprom.boardflags_lo
+ & B43legacy_BFL_PACTRL) {
+ baseband_attenuation += 4 *
+ (radio_attenuation - 2);
+ radio_attenuation = 2;
+ }
+ } else if (radio_attenuation > 4 && txpower != 0) {
+ txpower = 0;
+ if (baseband_attenuation < 3) {
+ radio_attenuation -= 3;
+ baseband_attenuation += 2;
+ } else {
+ radio_attenuation -= 2;
+ baseband_attenuation -= 2;
+ }
+ }
+ }
+ /* Save the control values */
+ phy->txctl1 = txpower;
+ baseband_attenuation = clamp_val(baseband_attenuation, 0, 11);
+ radio_attenuation = clamp_val(radio_attenuation, 0, 9);
+ phy->rfatt = radio_attenuation;
+ phy->bbatt = baseband_attenuation;
+
+ /* Adjust the hardware */
+ b43legacy_phy_lock(dev);
+ b43legacy_radio_lock(dev);
+ b43legacy_radio_set_txpower_bg(dev, baseband_attenuation,
+ radio_attenuation, txpower);
+ b43legacy_phy_lo_mark_current_used(dev);
+ b43legacy_radio_unlock(dev);
+ b43legacy_phy_unlock(dev);
+}
+
+static inline
+s32 b43legacy_tssi2dbm_ad(s32 num, s32 den)
+{
+ if (num < 0)
+ return num/den;
+ else
+ return (num+den/2)/den;
+}
+
+static inline
+s8 b43legacy_tssi2dbm_entry(s8 entry [], u8 index, s16 pab0, s16 pab1, s16 pab2)
+{
+ s32 m1;
+ s32 m2;
+ s32 f = 256;
+ s32 q;
+ s32 delta;
+ s8 i = 0;
+
+ m1 = b43legacy_tssi2dbm_ad(16 * pab0 + index * pab1, 32);
+ m2 = max(b43legacy_tssi2dbm_ad(32768 + index * pab2, 256), 1);
+ do {
+ if (i > 15)
+ return -EINVAL;
+ q = b43legacy_tssi2dbm_ad(f * 4096 -
+ b43legacy_tssi2dbm_ad(m2 * f, 16) *
+ f, 2048);
+ delta = abs(q - f);
+ f = q;
+ i++;
+ } while (delta >= 2);
+ entry[index] = clamp_val(b43legacy_tssi2dbm_ad(m1 * f, 8192),
+ -127, 128);
+ return 0;
+}
+
+/* http://bcm-specs.sipsolutions.net/TSSI_to_DBM_Table */
+int b43legacy_phy_init_tssi2dbm_table(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ s16 pab0;
+ s16 pab1;
+ s16 pab2;
+ u8 idx;
+ s8 *dyn_tssi2dbm;
+
+ B43legacy_WARN_ON(!(phy->type == B43legacy_PHYTYPE_B ||
+ phy->type == B43legacy_PHYTYPE_G));
+ pab0 = (s16)(dev->dev->bus->sprom.pa0b0);
+ pab1 = (s16)(dev->dev->bus->sprom.pa0b1);
+ pab2 = (s16)(dev->dev->bus->sprom.pa0b2);
+
+ if ((dev->dev->bus->chip_id == 0x4301) && (phy->radio_ver != 0x2050)) {
+ phy->idle_tssi = 0x34;
+ phy->tssi2dbm = b43legacy_tssi2dbm_b_table;
+ return 0;
+ }
+
+ if (pab0 != 0 && pab1 != 0 && pab2 != 0 &&
+ pab0 != -1 && pab1 != -1 && pab2 != -1) {
+ /* The pabX values are set in SPROM. Use them. */
+ if ((s8)dev->dev->bus->sprom.itssi_bg != 0 &&
+ (s8)dev->dev->bus->sprom.itssi_bg != -1)
+ phy->idle_tssi = (s8)(dev->dev->bus->sprom.
+ itssi_bg);
+ else
+ phy->idle_tssi = 62;
+ dyn_tssi2dbm = kmalloc(64, GFP_KERNEL);
+ if (dyn_tssi2dbm == NULL) {
+ b43legacyerr(dev->wl, "Could not allocate memory "
+ "for tssi2dbm table\n");
+ return -ENOMEM;
+ }
+ for (idx = 0; idx < 64; idx++)
+ if (b43legacy_tssi2dbm_entry(dyn_tssi2dbm, idx, pab0,
+ pab1, pab2)) {
+ phy->tssi2dbm = NULL;
+ b43legacyerr(dev->wl, "Could not generate "
+ "tssi2dBm table\n");
+ kfree(dyn_tssi2dbm);
+ return -ENODEV;
+ }
+ phy->tssi2dbm = dyn_tssi2dbm;
+ phy->dyn_tssi_tbl = 1;
+ } else {
+ /* pabX values not set in SPROM. */
+ switch (phy->type) {
+ case B43legacy_PHYTYPE_B:
+ phy->idle_tssi = 0x34;
+ phy->tssi2dbm = b43legacy_tssi2dbm_b_table;
+ break;
+ case B43legacy_PHYTYPE_G:
+ phy->idle_tssi = 0x34;
+ phy->tssi2dbm = b43legacy_tssi2dbm_g_table;
+ break;
+ }
+ }
+
+ return 0;
+}
+
+int b43legacy_phy_init(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ int err = -ENODEV;
+
+ switch (phy->type) {
+ case B43legacy_PHYTYPE_B:
+ switch (phy->rev) {
+ case 2:
+ b43legacy_phy_initb2(dev);
+ err = 0;
+ break;
+ case 4:
+ b43legacy_phy_initb4(dev);
+ err = 0;
+ break;
+ case 5:
+ b43legacy_phy_initb5(dev);
+ err = 0;
+ break;
+ case 6:
+ b43legacy_phy_initb6(dev);
+ err = 0;
+ break;
+ }
+ break;
+ case B43legacy_PHYTYPE_G:
+ b43legacy_phy_initg(dev);
+ err = 0;
+ break;
+ }
+ if (err)
+ b43legacyerr(dev->wl, "Unknown PHYTYPE found\n");
+
+ return err;
+}
+
+void b43legacy_phy_set_antenna_diversity(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 antennadiv;
+ u16 offset;
+ u16 value;
+ u32 ucodeflags;
+
+ antennadiv = phy->antenna_diversity;
+
+ if (antennadiv == 0xFFFF)
+ antennadiv = 3;
+ B43legacy_WARN_ON(antennadiv > 3);
+
+ ucodeflags = b43legacy_shm_read32(dev, B43legacy_SHM_SHARED,
+ B43legacy_UCODEFLAGS_OFFSET);
+ b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
+ B43legacy_UCODEFLAGS_OFFSET,
+ ucodeflags & ~B43legacy_UCODEFLAG_AUTODIV);
+
+ switch (phy->type) {
+ case B43legacy_PHYTYPE_G:
+ offset = 0x0400;
+
+ if (antennadiv == 2)
+ value = (3/*automatic*/ << 7);
+ else
+ value = (antennadiv << 7);
+ b43legacy_phy_write(dev, offset + 1,
+ (b43legacy_phy_read(dev, offset + 1)
+ & 0x7E7F) | value);
+
+ if (antennadiv >= 2) {
+ if (antennadiv == 2)
+ value = (antennadiv << 7);
+ else
+ value = (0/*force0*/ << 7);
+ b43legacy_phy_write(dev, offset + 0x2B,
+ (b43legacy_phy_read(dev,
+ offset + 0x2B)
+ & 0xFEFF) | value);
+ }
+
+ if (phy->type == B43legacy_PHYTYPE_G) {
+ if (antennadiv >= 2)
+ b43legacy_phy_write(dev, 0x048C,
+ b43legacy_phy_read(dev,
+ 0x048C) | 0x2000);
+ else
+ b43legacy_phy_write(dev, 0x048C,
+ b43legacy_phy_read(dev,
+ 0x048C) & ~0x2000);
+ if (phy->rev >= 2) {
+ b43legacy_phy_write(dev, 0x0461,
+ b43legacy_phy_read(dev,
+ 0x0461) | 0x0010);
+ b43legacy_phy_write(dev, 0x04AD,
+ (b43legacy_phy_read(dev,
+ 0x04AD)
+ & 0x00FF) | 0x0015);
+ if (phy->rev == 2)
+ b43legacy_phy_write(dev, 0x0427,
+ 0x0008);
+ else
+ b43legacy_phy_write(dev, 0x0427,
+ (b43legacy_phy_read(dev, 0x0427)
+ & 0x00FF) | 0x0008);
+ } else if (phy->rev >= 6)
+ b43legacy_phy_write(dev, 0x049B, 0x00DC);
+ } else {
+ if (phy->rev < 3)
+ b43legacy_phy_write(dev, 0x002B,
+ (b43legacy_phy_read(dev,
+ 0x002B) & 0x00FF)
+ | 0x0024);
+ else {
+ b43legacy_phy_write(dev, 0x0061,
+ b43legacy_phy_read(dev,
+ 0x0061) | 0x0010);
+ if (phy->rev == 3) {
+ b43legacy_phy_write(dev, 0x0093,
+ 0x001D);
+ b43legacy_phy_write(dev, 0x0027,
+ 0x0008);
+ } else {
+ b43legacy_phy_write(dev, 0x0093,
+ 0x003A);
+ b43legacy_phy_write(dev, 0x0027,
+ (b43legacy_phy_read(dev, 0x0027)
+ & 0x00FF) | 0x0008);
+ }
+ }
+ }
+ break;
+ case B43legacy_PHYTYPE_B:
+ if (dev->dev->id.revision == 2)
+ value = (3/*automatic*/ << 7);
+ else
+ value = (antennadiv << 7);
+ b43legacy_phy_write(dev, 0x03E2,
+ (b43legacy_phy_read(dev, 0x03E2)
+ & 0xFE7F) | value);
+ break;
+ default:
+ B43legacy_WARN_ON(1);
+ }
+
+ if (antennadiv >= 2) {
+ ucodeflags = b43legacy_shm_read32(dev, B43legacy_SHM_SHARED,
+ B43legacy_UCODEFLAGS_OFFSET);
+ b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
+ B43legacy_UCODEFLAGS_OFFSET,
+ ucodeflags | B43legacy_UCODEFLAG_AUTODIV);
+ }
+
+ phy->antenna_diversity = antennadiv;
+}
+
+/* Set the PowerSavingControlBits.
+ * Bitvalues:
+ * 0 => unset the bit
+ * 1 => set the bit
+ * -1 => calculate the bit
+ */
+void b43legacy_power_saving_ctl_bits(struct b43legacy_wldev *dev,
+ int bit25, int bit26)
+{
+ int i;
+ u32 status;
+
+/* FIXME: Force 25 to off and 26 to on for now: */
+bit25 = 0;
+bit26 = 1;
+
+ if (bit25 == -1) {
+ /* TODO: If powersave is not off and FIXME is not set and we
+ * are not in adhoc and thus is not an AP and we arei
+ * associated, set bit 25 */
+ }
+ if (bit26 == -1) {
+ /* TODO: If the device is awake or this is an AP, or we are
+ * scanning, or FIXME, or we are associated, or FIXME,
+ * or the latest PS-Poll packet sent was successful,
+ * set bit26 */
+ }
+ status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
+ if (bit25)
+ status |= B43legacy_MACCTL_HWPS;
+ else
+ status &= ~B43legacy_MACCTL_HWPS;
+ if (bit26)
+ status |= B43legacy_MACCTL_AWAKE;
+ else
+ status &= ~B43legacy_MACCTL_AWAKE;
+ b43legacy_write32(dev, B43legacy_MMIO_MACCTL, status);
+ if (bit26 && dev->dev->id.revision >= 5) {
+ for (i = 0; i < 100; i++) {
+ if (b43legacy_shm_read32(dev, B43legacy_SHM_SHARED,
+ 0x0040) != 4)
+ break;
+ udelay(10);
+ }
+ }
+}
--- /dev/null
+/*
+
+ Broadcom B43legacy wireless driver
+
+ Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
+ Stefano Brivio <stefano.brivio@polimi.it>
+ Michael Buesch <m@bues.ch>
+ Danny van Dyk <kugelfang@gentoo.org>
+ Andreas Jaggi <andreas.jaggi@waterwave.ch>
+ Copyright (c) 2007 Larry Finger <Larry.Finger@lwfinger.net>
+
+ Some parts of the code in this file are derived from the ipw2200
+ driver Copyright(c) 2003 - 2004 Intel Corporation.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+
+*/
+
+#ifndef B43legacy_PHY_H_
+#define B43legacy_PHY_H_
+
+#include <linux/types.h>
+
+enum {
+ B43legacy_ANTENNA0, /* Antenna 0 */
+ B43legacy_ANTENNA1, /* Antenna 0 */
+ B43legacy_ANTENNA_AUTO1, /* Automatic, starting with antenna 1 */
+ B43legacy_ANTENNA_AUTO0, /* Automatic, starting with antenna 0 */
+
+ B43legacy_ANTENNA_AUTO = B43legacy_ANTENNA_AUTO0,
+ B43legacy_ANTENNA_DEFAULT = B43legacy_ANTENNA_AUTO,
+};
+
+enum {
+ B43legacy_INTERFMODE_NONE,
+ B43legacy_INTERFMODE_NONWLAN,
+ B43legacy_INTERFMODE_MANUALWLAN,
+ B43legacy_INTERFMODE_AUTOWLAN,
+};
+
+/*** PHY Registers ***/
+
+/* Routing */
+#define B43legacy_PHYROUTE_OFDM_GPHY 0x400
+#define B43legacy_PHYROUTE_EXT_GPHY 0x800
+
+/* Base registers. */
+#define B43legacy_PHY_BASE(reg) (reg)
+/* OFDM (A) registers of a G-PHY */
+#define B43legacy_PHY_OFDM(reg) ((reg) | B43legacy_PHYROUTE_OFDM_GPHY)
+/* Extended G-PHY registers */
+#define B43legacy_PHY_EXTG(reg) ((reg) | B43legacy_PHYROUTE_EXT_GPHY)
+
+
+/* Extended G-PHY Registers */
+#define B43legacy_PHY_CLASSCTL B43legacy_PHY_EXTG(0x02) /* Classify control */
+#define B43legacy_PHY_GTABCTL B43legacy_PHY_EXTG(0x03) /* G-PHY table control (see below) */
+#define B43legacy_PHY_GTABOFF 0x03FF /* G-PHY table offset (see below) */
+#define B43legacy_PHY_GTABNR 0xFC00 /* G-PHY table number (see below) */
+#define B43legacy_PHY_GTABNR_SHIFT 10
+#define B43legacy_PHY_GTABDATA B43legacy_PHY_EXTG(0x04) /* G-PHY table data */
+#define B43legacy_PHY_LO_MASK B43legacy_PHY_EXTG(0x0F) /* Local Oscillator control mask */
+#define B43legacy_PHY_LO_CTL B43legacy_PHY_EXTG(0x10) /* Local Oscillator control */
+#define B43legacy_PHY_RFOVER B43legacy_PHY_EXTG(0x11) /* RF override */
+#define B43legacy_PHY_RFOVERVAL B43legacy_PHY_EXTG(0x12) /* RF override value */
+/*** OFDM table numbers ***/
+#define B43legacy_OFDMTAB(number, offset) \
+ (((number) << B43legacy_PHY_OTABLENR_SHIFT) \
+ | (offset))
+#define B43legacy_OFDMTAB_AGC1 B43legacy_OFDMTAB(0x00, 0)
+#define B43legacy_OFDMTAB_GAIN0 B43legacy_OFDMTAB(0x00, 0)
+#define B43legacy_OFDMTAB_GAINX B43legacy_OFDMTAB(0x01, 0)
+#define B43legacy_OFDMTAB_GAIN1 B43legacy_OFDMTAB(0x01, 4)
+#define B43legacy_OFDMTAB_AGC3 B43legacy_OFDMTAB(0x02, 0)
+#define B43legacy_OFDMTAB_GAIN2 B43legacy_OFDMTAB(0x02, 3)
+#define B43legacy_OFDMTAB_LNAHPFGAIN1 B43legacy_OFDMTAB(0x03, 0)
+#define B43legacy_OFDMTAB_WRSSI B43legacy_OFDMTAB(0x04, 0)
+#define B43legacy_OFDMTAB_LNAHPFGAIN2 B43legacy_OFDMTAB(0x04, 0)
+#define B43legacy_OFDMTAB_NOISESCALE B43legacy_OFDMTAB(0x05, 0)
+#define B43legacy_OFDMTAB_AGC2 B43legacy_OFDMTAB(0x06, 0)
+#define B43legacy_OFDMTAB_ROTOR B43legacy_OFDMTAB(0x08, 0)
+#define B43legacy_OFDMTAB_ADVRETARD B43legacy_OFDMTAB(0x09, 0)
+#define B43legacy_OFDMTAB_DAC B43legacy_OFDMTAB(0x0C, 0)
+#define B43legacy_OFDMTAB_DC B43legacy_OFDMTAB(0x0E, 7)
+#define B43legacy_OFDMTAB_PWRDYN2 B43legacy_OFDMTAB(0x0E, 12)
+#define B43legacy_OFDMTAB_LNAGAIN B43legacy_OFDMTAB(0x0E, 13)
+
+#define B43legacy_OFDMTAB_LPFGAIN B43legacy_OFDMTAB(0x0F, 12)
+#define B43legacy_OFDMTAB_RSSI B43legacy_OFDMTAB(0x10, 0)
+
+#define B43legacy_OFDMTAB_AGC1_R1 B43legacy_OFDMTAB(0x13, 0)
+#define B43legacy_OFDMTAB_GAINX_R1 B43legacy_OFDMTAB(0x14, 0)
+#define B43legacy_OFDMTAB_MINSIGSQ B43legacy_OFDMTAB(0x14, 1)
+#define B43legacy_OFDMTAB_AGC3_R1 B43legacy_OFDMTAB(0x15, 0)
+#define B43legacy_OFDMTAB_WRSSI_R1 B43legacy_OFDMTAB(0x15, 4)
+#define B43legacy_OFDMTAB_TSSI B43legacy_OFDMTAB(0x15, 0)
+#define B43legacy_OFDMTAB_DACRFPABB B43legacy_OFDMTAB(0x16, 0)
+#define B43legacy_OFDMTAB_DACOFF B43legacy_OFDMTAB(0x17, 0)
+#define B43legacy_OFDMTAB_DCBIAS B43legacy_OFDMTAB(0x18, 0)
+
+void b43legacy_put_attenuation_into_ranges(int *_bbatt, int *_rfatt);
+
+/* OFDM (A) PHY Registers */
+#define B43legacy_PHY_VERSION_OFDM B43legacy_PHY_OFDM(0x00) /* Versioning register for A-PHY */
+#define B43legacy_PHY_BBANDCFG B43legacy_PHY_OFDM(0x01) /* Baseband config */
+#define B43legacy_PHY_BBANDCFG_RXANT 0x180 /* RX Antenna selection */
+#define B43legacy_PHY_BBANDCFG_RXANT_SHIFT 7
+#define B43legacy_PHY_PWRDOWN B43legacy_PHY_OFDM(0x03) /* Powerdown */
+#define B43legacy_PHY_CRSTHRES1 B43legacy_PHY_OFDM(0x06) /* CRS Threshold 1 */
+#define B43legacy_PHY_LNAHPFCTL B43legacy_PHY_OFDM(0x1C) /* LNA/HPF control */
+#define B43legacy_PHY_ADIVRELATED B43legacy_PHY_OFDM(0x27) /* FIXME rename */
+#define B43legacy_PHY_CRS0 B43legacy_PHY_OFDM(0x29)
+#define B43legacy_PHY_ANTDWELL B43legacy_PHY_OFDM(0x2B) /* Antenna dwell */
+#define B43legacy_PHY_ANTDWELL_AUTODIV1 0x0100 /* Automatic RX diversity start antenna */
+#define B43legacy_PHY_ENCORE B43legacy_PHY_OFDM(0x49) /* "Encore" (RangeMax / BroadRange) */
+#define B43legacy_PHY_ENCORE_EN 0x0200 /* Encore enable */
+#define B43legacy_PHY_LMS B43legacy_PHY_OFDM(0x55)
+#define B43legacy_PHY_OFDM61 B43legacy_PHY_OFDM(0x61) /* FIXME rename */
+#define B43legacy_PHY_OFDM61_10 0x0010 /* FIXME rename */
+#define B43legacy_PHY_IQBAL B43legacy_PHY_OFDM(0x69) /* I/Q balance */
+#define B43legacy_PHY_OTABLECTL B43legacy_PHY_OFDM(0x72) /* OFDM table control (see below) */
+#define B43legacy_PHY_OTABLEOFF 0x03FF /* OFDM table offset (see below) */
+#define B43legacy_PHY_OTABLENR 0xFC00 /* OFDM table number (see below) */
+#define B43legacy_PHY_OTABLENR_SHIFT 10
+#define B43legacy_PHY_OTABLEI B43legacy_PHY_OFDM(0x73) /* OFDM table data I */
+#define B43legacy_PHY_OTABLEQ B43legacy_PHY_OFDM(0x74) /* OFDM table data Q */
+#define B43legacy_PHY_HPWR_TSSICTL B43legacy_PHY_OFDM(0x78) /* Hardware power TSSI control */
+#define B43legacy_PHY_NRSSITHRES B43legacy_PHY_OFDM(0x8A) /* NRSSI threshold */
+#define B43legacy_PHY_ANTWRSETT B43legacy_PHY_OFDM(0x8C) /* Antenna WR settle */
+#define B43legacy_PHY_ANTWRSETT_ARXDIV 0x2000 /* Automatic RX diversity enabled */
+#define B43legacy_PHY_CLIPPWRDOWNT B43legacy_PHY_OFDM(0x93) /* Clip powerdown threshold */
+#define B43legacy_PHY_OFDM9B B43legacy_PHY_OFDM(0x9B) /* FIXME rename */
+#define B43legacy_PHY_N1P1GAIN B43legacy_PHY_OFDM(0xA0)
+#define B43legacy_PHY_P1P2GAIN B43legacy_PHY_OFDM(0xA1)
+#define B43legacy_PHY_N1N2GAIN B43legacy_PHY_OFDM(0xA2)
+#define B43legacy_PHY_CLIPTHRES B43legacy_PHY_OFDM(0xA3)
+#define B43legacy_PHY_CLIPN1P2THRES B43legacy_PHY_OFDM(0xA4)
+#define B43legacy_PHY_DIVSRCHIDX B43legacy_PHY_OFDM(0xA8) /* Divider search gain/index */
+#define B43legacy_PHY_CLIPP2THRES B43legacy_PHY_OFDM(0xA9)
+#define B43legacy_PHY_CLIPP3THRES B43legacy_PHY_OFDM(0xAA)
+#define B43legacy_PHY_DIVP1P2GAIN B43legacy_PHY_OFDM(0xAB)
+#define B43legacy_PHY_DIVSRCHGAINBACK B43legacy_PHY_OFDM(0xAD) /* Divider search gain back */
+#define B43legacy_PHY_DIVSRCHGAINCHNG B43legacy_PHY_OFDM(0xAE) /* Divider search gain change */
+#define B43legacy_PHY_CRSTHRES1_R1 B43legacy_PHY_OFDM(0xC0) /* CRS Threshold 1 (rev 1 only) */
+#define B43legacy_PHY_CRSTHRES2_R1 B43legacy_PHY_OFDM(0xC1) /* CRS Threshold 2 (rev 1 only) */
+#define B43legacy_PHY_TSSIP_LTBASE B43legacy_PHY_OFDM(0x380) /* TSSI power lookup table base */
+#define B43legacy_PHY_DC_LTBASE B43legacy_PHY_OFDM(0x3A0) /* DC lookup table base */
+#define B43legacy_PHY_GAIN_LTBASE B43legacy_PHY_OFDM(0x3C0) /* Gain lookup table base */
+
+void b43legacy_put_attenuation_into_ranges(int *_bbatt, int *_rfatt);
+
+/* Masks for the different PHY versioning registers. */
+#define B43legacy_PHYVER_ANALOG 0xF000
+#define B43legacy_PHYVER_ANALOG_SHIFT 12
+#define B43legacy_PHYVER_TYPE 0x0F00
+#define B43legacy_PHYVER_TYPE_SHIFT 8
+#define B43legacy_PHYVER_VERSION 0x00FF
+
+struct b43legacy_wldev;
+
+void b43legacy_phy_lock(struct b43legacy_wldev *dev);
+void b43legacy_phy_unlock(struct b43legacy_wldev *dev);
+
+/* Card uses the loopback gain stuff */
+#define has_loopback_gain(phy) \
+ (((phy)->rev > 1) || ((phy)->gmode))
+
+u16 b43legacy_phy_read(struct b43legacy_wldev *dev, u16 offset);
+void b43legacy_phy_write(struct b43legacy_wldev *dev, u16 offset, u16 val);
+
+int b43legacy_phy_init_tssi2dbm_table(struct b43legacy_wldev *dev);
+int b43legacy_phy_init(struct b43legacy_wldev *dev);
+
+void b43legacy_set_rx_antenna(struct b43legacy_wldev *dev, int antenna);
+
+void b43legacy_phy_set_antenna_diversity(struct b43legacy_wldev *dev);
+void b43legacy_phy_calibrate(struct b43legacy_wldev *dev);
+int b43legacy_phy_connect(struct b43legacy_wldev *dev, int connect);
+
+void b43legacy_phy_lo_b_measure(struct b43legacy_wldev *dev);
+void b43legacy_phy_lo_g_measure(struct b43legacy_wldev *dev);
+void b43legacy_phy_xmitpower(struct b43legacy_wldev *dev);
+
+/* Adjust the LocalOscillator to the saved values.
+ * "fixed" is only set to 1 once in initialization. Set to 0 otherwise.
+ */
+void b43legacy_phy_lo_adjust(struct b43legacy_wldev *dev, int fixed);
+void b43legacy_phy_lo_mark_all_unused(struct b43legacy_wldev *dev);
+
+void b43legacy_phy_set_baseband_attenuation(struct b43legacy_wldev *dev,
+ u16 baseband_attenuation);
+
+void b43legacy_power_saving_ctl_bits(struct b43legacy_wldev *dev,
+ int bit25, int bit26);
+
+#endif /* B43legacy_PHY_H_ */
--- /dev/null
+/*
+
+ Broadcom B43legacy wireless driver
+
+ PIO Transmission
+
+ Copyright (c) 2005 Michael Buesch <m@bues.ch>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+
+*/
+
+#include "b43legacy.h"
+#include "pio.h"
+#include "main.h"
+#include "xmit.h"
+
+#include <linux/delay.h>
+#include <linux/slab.h>
+
+
+static void tx_start(struct b43legacy_pioqueue *queue)
+{
+ b43legacy_pio_write(queue, B43legacy_PIO_TXCTL,
+ B43legacy_PIO_TXCTL_INIT);
+}
+
+static void tx_octet(struct b43legacy_pioqueue *queue,
+ u8 octet)
+{
+ if (queue->need_workarounds) {
+ b43legacy_pio_write(queue, B43legacy_PIO_TXDATA, octet);
+ b43legacy_pio_write(queue, B43legacy_PIO_TXCTL,
+ B43legacy_PIO_TXCTL_WRITELO);
+ } else {
+ b43legacy_pio_write(queue, B43legacy_PIO_TXCTL,
+ B43legacy_PIO_TXCTL_WRITELO);
+ b43legacy_pio_write(queue, B43legacy_PIO_TXDATA, octet);
+ }
+}
+
+static u16 tx_get_next_word(const u8 *txhdr,
+ const u8 *packet,
+ size_t txhdr_size,
+ unsigned int *pos)
+{
+ const u8 *source;
+ unsigned int i = *pos;
+ u16 ret;
+
+ if (i < txhdr_size)
+ source = txhdr;
+ else {
+ source = packet;
+ i -= txhdr_size;
+ }
+ ret = le16_to_cpu(*((__le16 *)(source + i)));
+ *pos += 2;
+
+ return ret;
+}
+
+static void tx_data(struct b43legacy_pioqueue *queue,
+ u8 *txhdr,
+ const u8 *packet,
+ unsigned int octets)
+{
+ u16 data;
+ unsigned int i = 0;
+
+ if (queue->need_workarounds) {
+ data = tx_get_next_word(txhdr, packet,
+ sizeof(struct b43legacy_txhdr_fw3), &i);
+ b43legacy_pio_write(queue, B43legacy_PIO_TXDATA, data);
+ }
+ b43legacy_pio_write(queue, B43legacy_PIO_TXCTL,
+ B43legacy_PIO_TXCTL_WRITELO |
+ B43legacy_PIO_TXCTL_WRITEHI);
+ while (i < octets - 1) {
+ data = tx_get_next_word(txhdr, packet,
+ sizeof(struct b43legacy_txhdr_fw3), &i);
+ b43legacy_pio_write(queue, B43legacy_PIO_TXDATA, data);
+ }
+ if (octets % 2)
+ tx_octet(queue, packet[octets -
+ sizeof(struct b43legacy_txhdr_fw3) - 1]);
+}
+
+static void tx_complete(struct b43legacy_pioqueue *queue,
+ struct sk_buff *skb)
+{
+ if (queue->need_workarounds) {
+ b43legacy_pio_write(queue, B43legacy_PIO_TXDATA,
+ skb->data[skb->len - 1]);
+ b43legacy_pio_write(queue, B43legacy_PIO_TXCTL,
+ B43legacy_PIO_TXCTL_WRITELO |
+ B43legacy_PIO_TXCTL_COMPLETE);
+ } else
+ b43legacy_pio_write(queue, B43legacy_PIO_TXCTL,
+ B43legacy_PIO_TXCTL_COMPLETE);
+}
+
+static u16 generate_cookie(struct b43legacy_pioqueue *queue,
+ struct b43legacy_pio_txpacket *packet)
+{
+ u16 cookie = 0x0000;
+ int packetindex;
+
+ /* We use the upper 4 bits for the PIO
+ * controller ID and the lower 12 bits
+ * for the packet index (in the cache).
+ */
+ switch (queue->mmio_base) {
+ case B43legacy_MMIO_PIO1_BASE:
+ break;
+ case B43legacy_MMIO_PIO2_BASE:
+ cookie = 0x1000;
+ break;
+ case B43legacy_MMIO_PIO3_BASE:
+ cookie = 0x2000;
+ break;
+ case B43legacy_MMIO_PIO4_BASE:
+ cookie = 0x3000;
+ break;
+ default:
+ B43legacy_WARN_ON(1);
+ }
+ packetindex = pio_txpacket_getindex(packet);
+ B43legacy_WARN_ON(!(((u16)packetindex & 0xF000) == 0x0000));
+ cookie |= (u16)packetindex;
+
+ return cookie;
+}
+
+static
+struct b43legacy_pioqueue *parse_cookie(struct b43legacy_wldev *dev,
+ u16 cookie,
+ struct b43legacy_pio_txpacket **packet)
+{
+ struct b43legacy_pio *pio = &dev->pio;
+ struct b43legacy_pioqueue *queue = NULL;
+ int packetindex;
+
+ switch (cookie & 0xF000) {
+ case 0x0000:
+ queue = pio->queue0;
+ break;
+ case 0x1000:
+ queue = pio->queue1;
+ break;
+ case 0x2000:
+ queue = pio->queue2;
+ break;
+ case 0x3000:
+ queue = pio->queue3;
+ break;
+ default:
+ B43legacy_WARN_ON(1);
+ }
+ packetindex = (cookie & 0x0FFF);
+ B43legacy_WARN_ON(!(packetindex >= 0 && packetindex
+ < B43legacy_PIO_MAXTXPACKETS));
+ *packet = &(queue->tx_packets_cache[packetindex]);
+
+ return queue;
+}
+
+union txhdr_union {
+ struct b43legacy_txhdr_fw3 txhdr_fw3;
+};
+
+static int pio_tx_write_fragment(struct b43legacy_pioqueue *queue,
+ struct sk_buff *skb,
+ struct b43legacy_pio_txpacket *packet,
+ size_t txhdr_size)
+{
+ union txhdr_union txhdr_data;
+ u8 *txhdr = NULL;
+ unsigned int octets;
+ int err;
+
+ txhdr = (u8 *)(&txhdr_data.txhdr_fw3);
+
+ B43legacy_WARN_ON(skb_shinfo(skb)->nr_frags != 0);
+ err = b43legacy_generate_txhdr(queue->dev,
+ txhdr, skb->data, skb->len,
+ IEEE80211_SKB_CB(skb),
+ generate_cookie(queue, packet));
+ if (err)
+ return err;
+
+ tx_start(queue);
+ octets = skb->len + txhdr_size;
+ if (queue->need_workarounds)
+ octets--;
+ tx_data(queue, txhdr, (u8 *)skb->data, octets);
+ tx_complete(queue, skb);
+
+ return 0;
+}
+
+static void free_txpacket(struct b43legacy_pio_txpacket *packet,
+ int irq_context)
+{
+ struct b43legacy_pioqueue *queue = packet->queue;
+
+ if (packet->skb) {
+ if (irq_context)
+ dev_kfree_skb_irq(packet->skb);
+ else
+ dev_kfree_skb(packet->skb);
+ }
+ list_move(&packet->list, &queue->txfree);
+ queue->nr_txfree++;
+}
+
+static int pio_tx_packet(struct b43legacy_pio_txpacket *packet)
+{
+ struct b43legacy_pioqueue *queue = packet->queue;
+ struct sk_buff *skb = packet->skb;
+ u16 octets;
+ int err;
+
+ octets = (u16)skb->len + sizeof(struct b43legacy_txhdr_fw3);
+ if (queue->tx_devq_size < octets) {
+ b43legacywarn(queue->dev->wl, "PIO queue too small. "
+ "Dropping packet.\n");
+ /* Drop it silently (return success) */
+ free_txpacket(packet, 1);
+ return 0;
+ }
+ B43legacy_WARN_ON(queue->tx_devq_packets >
+ B43legacy_PIO_MAXTXDEVQPACKETS);
+ B43legacy_WARN_ON(queue->tx_devq_used > queue->tx_devq_size);
+ /* Check if there is sufficient free space on the device
+ * TX queue. If not, return and let the TX tasklet
+ * retry later.
+ */
+ if (queue->tx_devq_packets == B43legacy_PIO_MAXTXDEVQPACKETS)
+ return -EBUSY;
+ if (queue->tx_devq_used + octets > queue->tx_devq_size)
+ return -EBUSY;
+ /* Now poke the device. */
+ err = pio_tx_write_fragment(queue, skb, packet,
+ sizeof(struct b43legacy_txhdr_fw3));
+ if (unlikely(err == -ENOKEY)) {
+ /* Drop this packet, as we don't have the encryption key
+ * anymore and must not transmit it unencrypted. */
+ free_txpacket(packet, 1);
+ return 0;
+ }
+
+ /* Account for the packet size.
+ * (We must not overflow the device TX queue)
+ */
+ queue->tx_devq_packets++;
+ queue->tx_devq_used += octets;
+
+ /* Transmission started, everything ok, move the
+ * packet to the txrunning list.
+ */
+ list_move_tail(&packet->list, &queue->txrunning);
+
+ return 0;
+}
+
+static void tx_tasklet(unsigned long d)
+{
+ struct b43legacy_pioqueue *queue = (struct b43legacy_pioqueue *)d;
+ struct b43legacy_wldev *dev = queue->dev;
+ unsigned long flags;
+ struct b43legacy_pio_txpacket *packet, *tmp_packet;
+ int err;
+ u16 txctl;
+
+ spin_lock_irqsave(&dev->wl->irq_lock, flags);
+ if (queue->tx_frozen)
+ goto out_unlock;
+ txctl = b43legacy_pio_read(queue, B43legacy_PIO_TXCTL);
+ if (txctl & B43legacy_PIO_TXCTL_SUSPEND)
+ goto out_unlock;
+
+ list_for_each_entry_safe(packet, tmp_packet, &queue->txqueue, list) {
+ /* Try to transmit the packet. This can fail, if
+ * the device queue is full. In case of failure, the
+ * packet is left in the txqueue.
+ * If transmission succeed, the packet is moved to txrunning.
+ * If it is impossible to transmit the packet, it
+ * is dropped.
+ */
+ err = pio_tx_packet(packet);
+ if (err)
+ break;
+ }
+out_unlock:
+ spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
+}
+
+static void setup_txqueues(struct b43legacy_pioqueue *queue)
+{
+ struct b43legacy_pio_txpacket *packet;
+ int i;
+
+ queue->nr_txfree = B43legacy_PIO_MAXTXPACKETS;
+ for (i = 0; i < B43legacy_PIO_MAXTXPACKETS; i++) {
+ packet = &(queue->tx_packets_cache[i]);
+
+ packet->queue = queue;
+ INIT_LIST_HEAD(&packet->list);
+
+ list_add(&packet->list, &queue->txfree);
+ }
+}
+
+static
+struct b43legacy_pioqueue *b43legacy_setup_pioqueue(struct b43legacy_wldev *dev,
+ u16 pio_mmio_base)
+{
+ struct b43legacy_pioqueue *queue;
+ u32 value;
+ u16 qsize;
+
+ queue = kzalloc(sizeof(*queue), GFP_KERNEL);
+ if (!queue)
+ goto out;
+
+ queue->dev = dev;
+ queue->mmio_base = pio_mmio_base;
+ queue->need_workarounds = (dev->dev->id.revision < 3);
+
+ INIT_LIST_HEAD(&queue->txfree);
+ INIT_LIST_HEAD(&queue->txqueue);
+ INIT_LIST_HEAD(&queue->txrunning);
+ tasklet_init(&queue->txtask, tx_tasklet,
+ (unsigned long)queue);
+
+ value = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
+ value &= ~B43legacy_MACCTL_BE;
+ b43legacy_write32(dev, B43legacy_MMIO_MACCTL, value);
+
+ qsize = b43legacy_read16(dev, queue->mmio_base
+ + B43legacy_PIO_TXQBUFSIZE);
+ if (qsize == 0) {
+ b43legacyerr(dev->wl, "This card does not support PIO "
+ "operation mode. Please use DMA mode "
+ "(module parameter pio=0).\n");
+ goto err_freequeue;
+ }
+ if (qsize <= B43legacy_PIO_TXQADJUST) {
+ b43legacyerr(dev->wl, "PIO tx device-queue too small (%u)\n",
+ qsize);
+ goto err_freequeue;
+ }
+ qsize -= B43legacy_PIO_TXQADJUST;
+ queue->tx_devq_size = qsize;
+
+ setup_txqueues(queue);
+
+out:
+ return queue;
+
+err_freequeue:
+ kfree(queue);
+ queue = NULL;
+ goto out;
+}
+
+static void cancel_transfers(struct b43legacy_pioqueue *queue)
+{
+ struct b43legacy_pio_txpacket *packet, *tmp_packet;
+
+ tasklet_kill(&queue->txtask);
+
+ list_for_each_entry_safe(packet, tmp_packet, &queue->txrunning, list)
+ free_txpacket(packet, 0);
+ list_for_each_entry_safe(packet, tmp_packet, &queue->txqueue, list)
+ free_txpacket(packet, 0);
+}
+
+static void b43legacy_destroy_pioqueue(struct b43legacy_pioqueue *queue)
+{
+ if (!queue)
+ return;
+
+ cancel_transfers(queue);
+ kfree(queue);
+}
+
+void b43legacy_pio_free(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_pio *pio;
+
+ if (!b43legacy_using_pio(dev))
+ return;
+ pio = &dev->pio;
+
+ b43legacy_destroy_pioqueue(pio->queue3);
+ pio->queue3 = NULL;
+ b43legacy_destroy_pioqueue(pio->queue2);
+ pio->queue2 = NULL;
+ b43legacy_destroy_pioqueue(pio->queue1);
+ pio->queue1 = NULL;
+ b43legacy_destroy_pioqueue(pio->queue0);
+ pio->queue0 = NULL;
+}
+
+int b43legacy_pio_init(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_pio *pio = &dev->pio;
+ struct b43legacy_pioqueue *queue;
+ int err = -ENOMEM;
+
+ queue = b43legacy_setup_pioqueue(dev, B43legacy_MMIO_PIO1_BASE);
+ if (!queue)
+ goto out;
+ pio->queue0 = queue;
+
+ queue = b43legacy_setup_pioqueue(dev, B43legacy_MMIO_PIO2_BASE);
+ if (!queue)
+ goto err_destroy0;
+ pio->queue1 = queue;
+
+ queue = b43legacy_setup_pioqueue(dev, B43legacy_MMIO_PIO3_BASE);
+ if (!queue)
+ goto err_destroy1;
+ pio->queue2 = queue;
+
+ queue = b43legacy_setup_pioqueue(dev, B43legacy_MMIO_PIO4_BASE);
+ if (!queue)
+ goto err_destroy2;
+ pio->queue3 = queue;
+
+ if (dev->dev->id.revision < 3)
+ dev->irq_mask |= B43legacy_IRQ_PIO_WORKAROUND;
+
+ b43legacydbg(dev->wl, "PIO initialized\n");
+ err = 0;
+out:
+ return err;
+
+err_destroy2:
+ b43legacy_destroy_pioqueue(pio->queue2);
+ pio->queue2 = NULL;
+err_destroy1:
+ b43legacy_destroy_pioqueue(pio->queue1);
+ pio->queue1 = NULL;
+err_destroy0:
+ b43legacy_destroy_pioqueue(pio->queue0);
+ pio->queue0 = NULL;
+ goto out;
+}
+
+int b43legacy_pio_tx(struct b43legacy_wldev *dev,
+ struct sk_buff *skb)
+{
+ struct b43legacy_pioqueue *queue = dev->pio.queue1;
+ struct b43legacy_pio_txpacket *packet;
+
+ B43legacy_WARN_ON(queue->tx_suspended);
+ B43legacy_WARN_ON(list_empty(&queue->txfree));
+
+ packet = list_entry(queue->txfree.next, struct b43legacy_pio_txpacket,
+ list);
+ packet->skb = skb;
+
+ list_move_tail(&packet->list, &queue->txqueue);
+ queue->nr_txfree--;
+ B43legacy_WARN_ON(queue->nr_txfree >= B43legacy_PIO_MAXTXPACKETS);
+
+ tasklet_schedule(&queue->txtask);
+
+ return 0;
+}
+
+void b43legacy_pio_handle_txstatus(struct b43legacy_wldev *dev,
+ const struct b43legacy_txstatus *status)
+{
+ struct b43legacy_pioqueue *queue;
+ struct b43legacy_pio_txpacket *packet;
+ struct ieee80211_tx_info *info;
+ int retry_limit;
+
+ queue = parse_cookie(dev, status->cookie, &packet);
+ B43legacy_WARN_ON(!queue);
+
+ if (!packet->skb)
+ return;
+
+ queue->tx_devq_packets--;
+ queue->tx_devq_used -= (packet->skb->len +
+ sizeof(struct b43legacy_txhdr_fw3));
+
+ info = IEEE80211_SKB_CB(packet->skb);
+
+ /* preserve the confiured retry limit before clearing the status
+ * The xmit function has overwritten the rc's value with the actual
+ * retry limit done by the hardware */
+ retry_limit = info->status.rates[0].count;
+ ieee80211_tx_info_clear_status(info);
+
+ if (status->acked)
+ info->flags |= IEEE80211_TX_STAT_ACK;
+
+ if (status->rts_count > dev->wl->hw->conf.short_frame_max_tx_count) {
+ /*
+ * If the short retries (RTS, not data frame) have exceeded
+ * the limit, the hw will not have tried the selected rate,
+ * but will have used the fallback rate instead.
+ * Don't let the rate control count attempts for the selected
+ * rate in this case, otherwise the statistics will be off.
+ */
+ info->status.rates[0].count = 0;
+ info->status.rates[1].count = status->frame_count;
+ } else {
+ if (status->frame_count > retry_limit) {
+ info->status.rates[0].count = retry_limit;
+ info->status.rates[1].count = status->frame_count -
+ retry_limit;
+
+ } else {
+ info->status.rates[0].count = status->frame_count;
+ info->status.rates[1].idx = -1;
+ }
+ }
+ ieee80211_tx_status_irqsafe(dev->wl->hw, packet->skb);
+ packet->skb = NULL;
+
+ free_txpacket(packet, 1);
+ /* If there are packets on the txqueue, poke the tasklet
+ * to transmit them.
+ */
+ if (!list_empty(&queue->txqueue))
+ tasklet_schedule(&queue->txtask);
+}
+
+static void pio_rx_error(struct b43legacy_pioqueue *queue,
+ int clear_buffers,
+ const char *error)
+{
+ int i;
+
+ b43legacyerr(queue->dev->wl, "PIO RX error: %s\n", error);
+ b43legacy_pio_write(queue, B43legacy_PIO_RXCTL,
+ B43legacy_PIO_RXCTL_READY);
+ if (clear_buffers) {
+ B43legacy_WARN_ON(queue->mmio_base != B43legacy_MMIO_PIO1_BASE);
+ for (i = 0; i < 15; i++) {
+ /* Dummy read. */
+ b43legacy_pio_read(queue, B43legacy_PIO_RXDATA);
+ }
+ }
+}
+
+void b43legacy_pio_rx(struct b43legacy_pioqueue *queue)
+{
+ __le16 preamble[21] = { 0 };
+ struct b43legacy_rxhdr_fw3 *rxhdr;
+ u16 tmp;
+ u16 len;
+ u16 macstat;
+ int i;
+ int preamble_readwords;
+ struct sk_buff *skb;
+
+ tmp = b43legacy_pio_read(queue, B43legacy_PIO_RXCTL);
+ if (!(tmp & B43legacy_PIO_RXCTL_DATAAVAILABLE))
+ return;
+ b43legacy_pio_write(queue, B43legacy_PIO_RXCTL,
+ B43legacy_PIO_RXCTL_DATAAVAILABLE);
+
+ for (i = 0; i < 10; i++) {
+ tmp = b43legacy_pio_read(queue, B43legacy_PIO_RXCTL);
+ if (tmp & B43legacy_PIO_RXCTL_READY)
+ goto data_ready;
+ udelay(10);
+ }
+ b43legacydbg(queue->dev->wl, "PIO RX timed out\n");
+ return;
+data_ready:
+
+ len = b43legacy_pio_read(queue, B43legacy_PIO_RXDATA);
+ if (unlikely(len > 0x700)) {
+ pio_rx_error(queue, 0, "len > 0x700");
+ return;
+ }
+ if (unlikely(len == 0 && queue->mmio_base !=
+ B43legacy_MMIO_PIO4_BASE)) {
+ pio_rx_error(queue, 0, "len == 0");
+ return;
+ }
+ preamble[0] = cpu_to_le16(len);
+ if (queue->mmio_base == B43legacy_MMIO_PIO4_BASE)
+ preamble_readwords = 14 / sizeof(u16);
+ else
+ preamble_readwords = 18 / sizeof(u16);
+ for (i = 0; i < preamble_readwords; i++) {
+ tmp = b43legacy_pio_read(queue, B43legacy_PIO_RXDATA);
+ preamble[i + 1] = cpu_to_le16(tmp);
+ }
+ rxhdr = (struct b43legacy_rxhdr_fw3 *)preamble;
+ macstat = le16_to_cpu(rxhdr->mac_status);
+ if (macstat & B43legacy_RX_MAC_FCSERR) {
+ pio_rx_error(queue,
+ (queue->mmio_base == B43legacy_MMIO_PIO1_BASE),
+ "Frame FCS error");
+ return;
+ }
+ if (queue->mmio_base == B43legacy_MMIO_PIO4_BASE) {
+ /* We received an xmit status. */
+ struct b43legacy_hwtxstatus *hw;
+
+ hw = (struct b43legacy_hwtxstatus *)(preamble + 1);
+ b43legacy_handle_hwtxstatus(queue->dev, hw);
+
+ return;
+ }
+
+ skb = dev_alloc_skb(len);
+ if (unlikely(!skb)) {
+ pio_rx_error(queue, 1, "OOM");
+ return;
+ }
+ skb_put(skb, len);
+ for (i = 0; i < len - 1; i += 2) {
+ tmp = b43legacy_pio_read(queue, B43legacy_PIO_RXDATA);
+ *((__le16 *)(skb->data + i)) = cpu_to_le16(tmp);
+ }
+ if (len % 2) {
+ tmp = b43legacy_pio_read(queue, B43legacy_PIO_RXDATA);
+ skb->data[len - 1] = (tmp & 0x00FF);
+ }
+ b43legacy_rx(queue->dev, skb, rxhdr);
+}
+
+void b43legacy_pio_tx_suspend(struct b43legacy_pioqueue *queue)
+{
+ b43legacy_power_saving_ctl_bits(queue->dev, -1, 1);
+ b43legacy_pio_write(queue, B43legacy_PIO_TXCTL,
+ b43legacy_pio_read(queue, B43legacy_PIO_TXCTL)
+ | B43legacy_PIO_TXCTL_SUSPEND);
+}
+
+void b43legacy_pio_tx_resume(struct b43legacy_pioqueue *queue)
+{
+ b43legacy_pio_write(queue, B43legacy_PIO_TXCTL,
+ b43legacy_pio_read(queue, B43legacy_PIO_TXCTL)
+ & ~B43legacy_PIO_TXCTL_SUSPEND);
+ b43legacy_power_saving_ctl_bits(queue->dev, -1, -1);
+ tasklet_schedule(&queue->txtask);
+}
+
+void b43legacy_pio_freeze_txqueues(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_pio *pio;
+
+ B43legacy_WARN_ON(!b43legacy_using_pio(dev));
+ pio = &dev->pio;
+ pio->queue0->tx_frozen = 1;
+ pio->queue1->tx_frozen = 1;
+ pio->queue2->tx_frozen = 1;
+ pio->queue3->tx_frozen = 1;
+}
+
+void b43legacy_pio_thaw_txqueues(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_pio *pio;
+
+ B43legacy_WARN_ON(!b43legacy_using_pio(dev));
+ pio = &dev->pio;
+ pio->queue0->tx_frozen = 0;
+ pio->queue1->tx_frozen = 0;
+ pio->queue2->tx_frozen = 0;
+ pio->queue3->tx_frozen = 0;
+ if (!list_empty(&pio->queue0->txqueue))
+ tasklet_schedule(&pio->queue0->txtask);
+ if (!list_empty(&pio->queue1->txqueue))
+ tasklet_schedule(&pio->queue1->txtask);
+ if (!list_empty(&pio->queue2->txqueue))
+ tasklet_schedule(&pio->queue2->txtask);
+ if (!list_empty(&pio->queue3->txqueue))
+ tasklet_schedule(&pio->queue3->txtask);
+}
--- /dev/null
+#ifndef B43legacy_PIO_H_
+#define B43legacy_PIO_H_
+
+#include "b43legacy.h"
+
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/skbuff.h>
+
+
+#define B43legacy_PIO_TXCTL 0x00
+#define B43legacy_PIO_TXDATA 0x02
+#define B43legacy_PIO_TXQBUFSIZE 0x04
+#define B43legacy_PIO_RXCTL 0x08
+#define B43legacy_PIO_RXDATA 0x0A
+
+#define B43legacy_PIO_TXCTL_WRITELO (1 << 0)
+#define B43legacy_PIO_TXCTL_WRITEHI (1 << 1)
+#define B43legacy_PIO_TXCTL_COMPLETE (1 << 2)
+#define B43legacy_PIO_TXCTL_INIT (1 << 3)
+#define B43legacy_PIO_TXCTL_SUSPEND (1 << 7)
+
+#define B43legacy_PIO_RXCTL_DATAAVAILABLE (1 << 0)
+#define B43legacy_PIO_RXCTL_READY (1 << 1)
+
+/* PIO constants */
+#define B43legacy_PIO_MAXTXDEVQPACKETS 31
+#define B43legacy_PIO_TXQADJUST 80
+
+/* PIO tuning knobs */
+#define B43legacy_PIO_MAXTXPACKETS 256
+
+
+
+#ifdef CONFIG_B43LEGACY_PIO
+
+
+struct b43legacy_pioqueue;
+struct b43legacy_xmitstatus;
+
+struct b43legacy_pio_txpacket {
+ struct b43legacy_pioqueue *queue;
+ struct sk_buff *skb;
+ struct list_head list;
+};
+
+#define pio_txpacket_getindex(packet) ((int)((packet) - \
+ (packet)->queue->tx_packets_cache))
+
+struct b43legacy_pioqueue {
+ struct b43legacy_wldev *dev;
+ u16 mmio_base;
+
+ bool tx_suspended;
+ bool tx_frozen;
+ bool need_workarounds; /* Workarounds needed for core.rev < 3 */
+
+ /* Adjusted size of the device internal TX buffer. */
+ u16 tx_devq_size;
+ /* Used octets of the device internal TX buffer. */
+ u16 tx_devq_used;
+ /* Used packet slots in the device internal TX buffer. */
+ u8 tx_devq_packets;
+ /* Packets from the txfree list can
+ * be taken on incoming TX requests.
+ */
+ struct list_head txfree;
+ unsigned int nr_txfree;
+ /* Packets on the txqueue are queued,
+ * but not completely written to the chip, yet.
+ */
+ struct list_head txqueue;
+ /* Packets on the txrunning queue are completely
+ * posted to the device. We are waiting for the txstatus.
+ */
+ struct list_head txrunning;
+ struct tasklet_struct txtask;
+ struct b43legacy_pio_txpacket
+ tx_packets_cache[B43legacy_PIO_MAXTXPACKETS];
+};
+
+static inline
+u16 b43legacy_pio_read(struct b43legacy_pioqueue *queue,
+ u16 offset)
+{
+ return b43legacy_read16(queue->dev, queue->mmio_base + offset);
+}
+
+static inline
+void b43legacy_pio_write(struct b43legacy_pioqueue *queue,
+ u16 offset, u16 value)
+{
+ b43legacy_write16(queue->dev, queue->mmio_base + offset, value);
+ mmiowb();
+}
+
+
+int b43legacy_pio_init(struct b43legacy_wldev *dev);
+void b43legacy_pio_free(struct b43legacy_wldev *dev);
+
+int b43legacy_pio_tx(struct b43legacy_wldev *dev,
+ struct sk_buff *skb);
+void b43legacy_pio_handle_txstatus(struct b43legacy_wldev *dev,
+ const struct b43legacy_txstatus *status);
+void b43legacy_pio_rx(struct b43legacy_pioqueue *queue);
+
+/* Suspend TX queue in hardware. */
+void b43legacy_pio_tx_suspend(struct b43legacy_pioqueue *queue);
+void b43legacy_pio_tx_resume(struct b43legacy_pioqueue *queue);
+/* Suspend (freeze) the TX tasklet (software level). */
+void b43legacy_pio_freeze_txqueues(struct b43legacy_wldev *dev);
+void b43legacy_pio_thaw_txqueues(struct b43legacy_wldev *dev);
+
+#else /* CONFIG_B43LEGACY_PIO */
+
+static inline
+int b43legacy_pio_init(struct b43legacy_wldev *dev)
+{
+ return 0;
+}
+static inline
+void b43legacy_pio_free(struct b43legacy_wldev *dev)
+{
+}
+static inline
+int b43legacy_pio_tx(struct b43legacy_wldev *dev,
+ struct sk_buff *skb)
+{
+ return 0;
+}
+static inline
+void b43legacy_pio_handle_txstatus(struct b43legacy_wldev *dev,
+ const struct b43legacy_txstatus *status)
+{
+}
+static inline
+void b43legacy_pio_rx(struct b43legacy_pioqueue *queue)
+{
+}
+static inline
+void b43legacy_pio_tx_suspend(struct b43legacy_pioqueue *queue)
+{
+}
+static inline
+void b43legacy_pio_tx_resume(struct b43legacy_pioqueue *queue)
+{
+}
+static inline
+void b43legacy_pio_freeze_txqueues(struct b43legacy_wldev *dev)
+{
+}
+static inline
+void b43legacy_pio_thaw_txqueues(struct b43legacy_wldev *dev)
+{
+}
+
+#endif /* CONFIG_B43LEGACY_PIO */
+#endif /* B43legacy_PIO_H_ */
--- /dev/null
+/*
+
+ Broadcom B43legacy wireless driver
+
+ Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
+ Stefano Brivio <stefano.brivio@polimi.it>
+ Michael Buesch <m@bues.ch>
+ Danny van Dyk <kugelfang@gentoo.org>
+ Andreas Jaggi <andreas.jaggi@waterwave.ch>
+ Copyright (c) 2007 Larry Finger <Larry.Finger@lwfinger.net>
+
+ Some parts of the code in this file are derived from the ipw2200
+ driver Copyright(c) 2003 - 2004 Intel Corporation.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+
+*/
+
+#include <linux/delay.h>
+
+#include "b43legacy.h"
+#include "main.h"
+#include "phy.h"
+#include "radio.h"
+#include "ilt.h"
+
+
+/* Table for b43legacy_radio_calibrationvalue() */
+static const u16 rcc_table[16] = {
+ 0x0002, 0x0003, 0x0001, 0x000F,
+ 0x0006, 0x0007, 0x0005, 0x000F,
+ 0x000A, 0x000B, 0x0009, 0x000F,
+ 0x000E, 0x000F, 0x000D, 0x000F,
+};
+
+/* Reverse the bits of a 4bit value.
+ * Example: 1101 is flipped 1011
+ */
+static u16 flip_4bit(u16 value)
+{
+ u16 flipped = 0x0000;
+
+ B43legacy_BUG_ON(!((value & ~0x000F) == 0x0000));
+
+ flipped |= (value & 0x0001) << 3;
+ flipped |= (value & 0x0002) << 1;
+ flipped |= (value & 0x0004) >> 1;
+ flipped |= (value & 0x0008) >> 3;
+
+ return flipped;
+}
+
+/* Get the freq, as it has to be written to the device. */
+static inline
+u16 channel2freq_bg(u8 channel)
+{
+ /* Frequencies are given as frequencies_bg[index] + 2.4GHz
+ * Starting with channel 1
+ */
+ static const u16 frequencies_bg[14] = {
+ 12, 17, 22, 27,
+ 32, 37, 42, 47,
+ 52, 57, 62, 67,
+ 72, 84,
+ };
+
+ if (unlikely(channel < 1 || channel > 14)) {
+ printk(KERN_INFO "b43legacy: Channel %d is out of range\n",
+ channel);
+ dump_stack();
+ return 2412;
+ }
+
+ return frequencies_bg[channel - 1];
+}
+
+void b43legacy_radio_lock(struct b43legacy_wldev *dev)
+{
+ u32 status;
+
+ status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
+ B43legacy_WARN_ON(status & B43legacy_MACCTL_RADIOLOCK);
+ status |= B43legacy_MACCTL_RADIOLOCK;
+ b43legacy_write32(dev, B43legacy_MMIO_MACCTL, status);
+ mmiowb();
+ udelay(10);
+}
+
+void b43legacy_radio_unlock(struct b43legacy_wldev *dev)
+{
+ u32 status;
+
+ b43legacy_read16(dev, B43legacy_MMIO_PHY_VER); /* dummy read */
+ status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
+ B43legacy_WARN_ON(!(status & B43legacy_MACCTL_RADIOLOCK));
+ status &= ~B43legacy_MACCTL_RADIOLOCK;
+ b43legacy_write32(dev, B43legacy_MMIO_MACCTL, status);
+ mmiowb();
+}
+
+u16 b43legacy_radio_read16(struct b43legacy_wldev *dev, u16 offset)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+
+ switch (phy->type) {
+ case B43legacy_PHYTYPE_B:
+ if (phy->radio_ver == 0x2053) {
+ if (offset < 0x70)
+ offset += 0x80;
+ else if (offset < 0x80)
+ offset += 0x70;
+ } else if (phy->radio_ver == 0x2050)
+ offset |= 0x80;
+ else
+ B43legacy_WARN_ON(1);
+ break;
+ case B43legacy_PHYTYPE_G:
+ offset |= 0x80;
+ break;
+ default:
+ B43legacy_BUG_ON(1);
+ }
+
+ b43legacy_write16(dev, B43legacy_MMIO_RADIO_CONTROL, offset);
+ return b43legacy_read16(dev, B43legacy_MMIO_RADIO_DATA_LOW);
+}
+
+void b43legacy_radio_write16(struct b43legacy_wldev *dev, u16 offset, u16 val)
+{
+ b43legacy_write16(dev, B43legacy_MMIO_RADIO_CONTROL, offset);
+ mmiowb();
+ b43legacy_write16(dev, B43legacy_MMIO_RADIO_DATA_LOW, val);
+}
+
+static void b43legacy_set_all_gains(struct b43legacy_wldev *dev,
+ s16 first, s16 second, s16 third)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 i;
+ u16 start = 0x08;
+ u16 end = 0x18;
+ u16 offset = 0x0400;
+ u16 tmp;
+
+ if (phy->rev <= 1) {
+ offset = 0x5000;
+ start = 0x10;
+ end = 0x20;
+ }
+
+ for (i = 0; i < 4; i++)
+ b43legacy_ilt_write(dev, offset + i, first);
+
+ for (i = start; i < end; i++)
+ b43legacy_ilt_write(dev, offset + i, second);
+
+ if (third != -1) {
+ tmp = ((u16)third << 14) | ((u16)third << 6);
+ b43legacy_phy_write(dev, 0x04A0,
+ (b43legacy_phy_read(dev, 0x04A0) & 0xBFBF)
+ | tmp);
+ b43legacy_phy_write(dev, 0x04A1,
+ (b43legacy_phy_read(dev, 0x04A1) & 0xBFBF)
+ | tmp);
+ b43legacy_phy_write(dev, 0x04A2,
+ (b43legacy_phy_read(dev, 0x04A2) & 0xBFBF)
+ | tmp);
+ }
+ b43legacy_dummy_transmission(dev);
+}
+
+static void b43legacy_set_original_gains(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 i;
+ u16 tmp;
+ u16 offset = 0x0400;
+ u16 start = 0x0008;
+ u16 end = 0x0018;
+
+ if (phy->rev <= 1) {
+ offset = 0x5000;
+ start = 0x0010;
+ end = 0x0020;
+ }
+
+ for (i = 0; i < 4; i++) {
+ tmp = (i & 0xFFFC);
+ tmp |= (i & 0x0001) << 1;
+ tmp |= (i & 0x0002) >> 1;
+
+ b43legacy_ilt_write(dev, offset + i, tmp);
+ }
+
+ for (i = start; i < end; i++)
+ b43legacy_ilt_write(dev, offset + i, i - start);
+
+ b43legacy_phy_write(dev, 0x04A0,
+ (b43legacy_phy_read(dev, 0x04A0) & 0xBFBF)
+ | 0x4040);
+ b43legacy_phy_write(dev, 0x04A1,
+ (b43legacy_phy_read(dev, 0x04A1) & 0xBFBF)
+ | 0x4040);
+ b43legacy_phy_write(dev, 0x04A2,
+ (b43legacy_phy_read(dev, 0x04A2) & 0xBFBF)
+ | 0x4000);
+ b43legacy_dummy_transmission(dev);
+}
+
+/* Synthetic PU workaround */
+static void b43legacy_synth_pu_workaround(struct b43legacy_wldev *dev,
+ u8 channel)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+
+ might_sleep();
+
+ if (phy->radio_ver != 0x2050 || phy->radio_rev >= 6)
+ /* We do not need the workaround. */
+ return;
+
+ if (channel <= 10)
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL,
+ channel2freq_bg(channel + 4));
+ else
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL,
+ channel2freq_bg(channel));
+ msleep(1);
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL,
+ channel2freq_bg(channel));
+}
+
+u8 b43legacy_radio_aci_detect(struct b43legacy_wldev *dev, u8 channel)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u8 ret = 0;
+ u16 saved;
+ u16 rssi;
+ u16 temp;
+ int i;
+ int j = 0;
+
+ saved = b43legacy_phy_read(dev, 0x0403);
+ b43legacy_radio_selectchannel(dev, channel, 0);
+ b43legacy_phy_write(dev, 0x0403, (saved & 0xFFF8) | 5);
+ if (phy->aci_hw_rssi)
+ rssi = b43legacy_phy_read(dev, 0x048A) & 0x3F;
+ else
+ rssi = saved & 0x3F;
+ /* clamp temp to signed 5bit */
+ if (rssi > 32)
+ rssi -= 64;
+ for (i = 0; i < 100; i++) {
+ temp = (b43legacy_phy_read(dev, 0x047F) >> 8) & 0x3F;
+ if (temp > 32)
+ temp -= 64;
+ if (temp < rssi)
+ j++;
+ if (j >= 20)
+ ret = 1;
+ }
+ b43legacy_phy_write(dev, 0x0403, saved);
+
+ return ret;
+}
+
+u8 b43legacy_radio_aci_scan(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u8 ret[13];
+ unsigned int channel = phy->channel;
+ unsigned int i;
+ unsigned int j;
+ unsigned int start;
+ unsigned int end;
+
+ if (!((phy->type == B43legacy_PHYTYPE_G) && (phy->rev > 0)))
+ return 0;
+
+ b43legacy_phy_lock(dev);
+ b43legacy_radio_lock(dev);
+ b43legacy_phy_write(dev, 0x0802,
+ b43legacy_phy_read(dev, 0x0802) & 0xFFFC);
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
+ b43legacy_phy_read(dev, B43legacy_PHY_G_CRS)
+ & 0x7FFF);
+ b43legacy_set_all_gains(dev, 3, 8, 1);
+
+ start = (channel - 5 > 0) ? channel - 5 : 1;
+ end = (channel + 5 < 14) ? channel + 5 : 13;
+
+ for (i = start; i <= end; i++) {
+ if (abs(channel - i) > 2)
+ ret[i-1] = b43legacy_radio_aci_detect(dev, i);
+ }
+ b43legacy_radio_selectchannel(dev, channel, 0);
+ b43legacy_phy_write(dev, 0x0802,
+ (b43legacy_phy_read(dev, 0x0802) & 0xFFFC)
+ | 0x0003);
+ b43legacy_phy_write(dev, 0x0403,
+ b43legacy_phy_read(dev, 0x0403) & 0xFFF8);
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
+ b43legacy_phy_read(dev, B43legacy_PHY_G_CRS)
+ | 0x8000);
+ b43legacy_set_original_gains(dev);
+ for (i = 0; i < 13; i++) {
+ if (!ret[i])
+ continue;
+ end = (i + 5 < 13) ? i + 5 : 13;
+ for (j = i; j < end; j++)
+ ret[j] = 1;
+ }
+ b43legacy_radio_unlock(dev);
+ b43legacy_phy_unlock(dev);
+
+ return ret[channel - 1];
+}
+
+/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
+void b43legacy_nrssi_hw_write(struct b43legacy_wldev *dev, u16 offset, s16 val)
+{
+ b43legacy_phy_write(dev, B43legacy_PHY_NRSSILT_CTRL, offset);
+ mmiowb();
+ b43legacy_phy_write(dev, B43legacy_PHY_NRSSILT_DATA, (u16)val);
+}
+
+/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
+s16 b43legacy_nrssi_hw_read(struct b43legacy_wldev *dev, u16 offset)
+{
+ u16 val;
+
+ b43legacy_phy_write(dev, B43legacy_PHY_NRSSILT_CTRL, offset);
+ val = b43legacy_phy_read(dev, B43legacy_PHY_NRSSILT_DATA);
+
+ return (s16)val;
+}
+
+/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
+void b43legacy_nrssi_hw_update(struct b43legacy_wldev *dev, u16 val)
+{
+ u16 i;
+ s16 tmp;
+
+ for (i = 0; i < 64; i++) {
+ tmp = b43legacy_nrssi_hw_read(dev, i);
+ tmp -= val;
+ tmp = clamp_val(tmp, -32, 31);
+ b43legacy_nrssi_hw_write(dev, i, tmp);
+ }
+}
+
+/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
+void b43legacy_nrssi_mem_update(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ s16 i;
+ s16 delta;
+ s32 tmp;
+
+ delta = 0x1F - phy->nrssi[0];
+ for (i = 0; i < 64; i++) {
+ tmp = (i - delta) * phy->nrssislope;
+ tmp /= 0x10000;
+ tmp += 0x3A;
+ tmp = clamp_val(tmp, 0, 0x3F);
+ phy->nrssi_lt[i] = tmp;
+ }
+}
+
+static void b43legacy_calc_nrssi_offset(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 backup[20] = { 0 };
+ s16 v47F;
+ u16 i;
+ u16 saved = 0xFFFF;
+
+ backup[0] = b43legacy_phy_read(dev, 0x0001);
+ backup[1] = b43legacy_phy_read(dev, 0x0811);
+ backup[2] = b43legacy_phy_read(dev, 0x0812);
+ backup[3] = b43legacy_phy_read(dev, 0x0814);
+ backup[4] = b43legacy_phy_read(dev, 0x0815);
+ backup[5] = b43legacy_phy_read(dev, 0x005A);
+ backup[6] = b43legacy_phy_read(dev, 0x0059);
+ backup[7] = b43legacy_phy_read(dev, 0x0058);
+ backup[8] = b43legacy_phy_read(dev, 0x000A);
+ backup[9] = b43legacy_phy_read(dev, 0x0003);
+ backup[10] = b43legacy_radio_read16(dev, 0x007A);
+ backup[11] = b43legacy_radio_read16(dev, 0x0043);
+
+ b43legacy_phy_write(dev, 0x0429,
+ b43legacy_phy_read(dev, 0x0429) & 0x7FFF);
+ b43legacy_phy_write(dev, 0x0001,
+ (b43legacy_phy_read(dev, 0x0001) & 0x3FFF)
+ | 0x4000);
+ b43legacy_phy_write(dev, 0x0811,
+ b43legacy_phy_read(dev, 0x0811) | 0x000C);
+ b43legacy_phy_write(dev, 0x0812,
+ (b43legacy_phy_read(dev, 0x0812) & 0xFFF3)
+ | 0x0004);
+ b43legacy_phy_write(dev, 0x0802,
+ b43legacy_phy_read(dev, 0x0802) & ~(0x1 | 0x2));
+ if (phy->rev >= 6) {
+ backup[12] = b43legacy_phy_read(dev, 0x002E);
+ backup[13] = b43legacy_phy_read(dev, 0x002F);
+ backup[14] = b43legacy_phy_read(dev, 0x080F);
+ backup[15] = b43legacy_phy_read(dev, 0x0810);
+ backup[16] = b43legacy_phy_read(dev, 0x0801);
+ backup[17] = b43legacy_phy_read(dev, 0x0060);
+ backup[18] = b43legacy_phy_read(dev, 0x0014);
+ backup[19] = b43legacy_phy_read(dev, 0x0478);
+
+ b43legacy_phy_write(dev, 0x002E, 0);
+ b43legacy_phy_write(dev, 0x002F, 0);
+ b43legacy_phy_write(dev, 0x080F, 0);
+ b43legacy_phy_write(dev, 0x0810, 0);
+ b43legacy_phy_write(dev, 0x0478,
+ b43legacy_phy_read(dev, 0x0478) | 0x0100);
+ b43legacy_phy_write(dev, 0x0801,
+ b43legacy_phy_read(dev, 0x0801) | 0x0040);
+ b43legacy_phy_write(dev, 0x0060,
+ b43legacy_phy_read(dev, 0x0060) | 0x0040);
+ b43legacy_phy_write(dev, 0x0014,
+ b43legacy_phy_read(dev, 0x0014) | 0x0200);
+ }
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A) | 0x0070);
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A) | 0x0080);
+ udelay(30);
+
+ v47F = (s16)((b43legacy_phy_read(dev, 0x047F) >> 8) & 0x003F);
+ if (v47F >= 0x20)
+ v47F -= 0x40;
+ if (v47F == 31) {
+ for (i = 7; i >= 4; i--) {
+ b43legacy_radio_write16(dev, 0x007B, i);
+ udelay(20);
+ v47F = (s16)((b43legacy_phy_read(dev, 0x047F) >> 8)
+ & 0x003F);
+ if (v47F >= 0x20)
+ v47F -= 0x40;
+ if (v47F < 31 && saved == 0xFFFF)
+ saved = i;
+ }
+ if (saved == 0xFFFF)
+ saved = 4;
+ } else {
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A)
+ & 0x007F);
+ b43legacy_phy_write(dev, 0x0814,
+ b43legacy_phy_read(dev, 0x0814) | 0x0001);
+ b43legacy_phy_write(dev, 0x0815,
+ b43legacy_phy_read(dev, 0x0815) & 0xFFFE);
+ b43legacy_phy_write(dev, 0x0811,
+ b43legacy_phy_read(dev, 0x0811) | 0x000C);
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_phy_read(dev, 0x0812) | 0x000C);
+ b43legacy_phy_write(dev, 0x0811,
+ b43legacy_phy_read(dev, 0x0811) | 0x0030);
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_phy_read(dev, 0x0812) | 0x0030);
+ b43legacy_phy_write(dev, 0x005A, 0x0480);
+ b43legacy_phy_write(dev, 0x0059, 0x0810);
+ b43legacy_phy_write(dev, 0x0058, 0x000D);
+ if (phy->analog == 0)
+ b43legacy_phy_write(dev, 0x0003, 0x0122);
+ else
+ b43legacy_phy_write(dev, 0x000A,
+ b43legacy_phy_read(dev, 0x000A)
+ | 0x2000);
+ b43legacy_phy_write(dev, 0x0814,
+ b43legacy_phy_read(dev, 0x0814) | 0x0004);
+ b43legacy_phy_write(dev, 0x0815,
+ b43legacy_phy_read(dev, 0x0815) & 0xFFFB);
+ b43legacy_phy_write(dev, 0x0003,
+ (b43legacy_phy_read(dev, 0x0003) & 0xFF9F)
+ | 0x0040);
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A)
+ | 0x000F);
+ b43legacy_set_all_gains(dev, 3, 0, 1);
+ b43legacy_radio_write16(dev, 0x0043,
+ (b43legacy_radio_read16(dev, 0x0043)
+ & 0x00F0) | 0x000F);
+ udelay(30);
+ v47F = (s16)((b43legacy_phy_read(dev, 0x047F) >> 8) & 0x003F);
+ if (v47F >= 0x20)
+ v47F -= 0x40;
+ if (v47F == -32) {
+ for (i = 0; i < 4; i++) {
+ b43legacy_radio_write16(dev, 0x007B, i);
+ udelay(20);
+ v47F = (s16)((b43legacy_phy_read(dev, 0x047F) >>
+ 8) & 0x003F);
+ if (v47F >= 0x20)
+ v47F -= 0x40;
+ if (v47F > -31 && saved == 0xFFFF)
+ saved = i;
+ }
+ if (saved == 0xFFFF)
+ saved = 3;
+ } else
+ saved = 0;
+ }
+ b43legacy_radio_write16(dev, 0x007B, saved);
+
+ if (phy->rev >= 6) {
+ b43legacy_phy_write(dev, 0x002E, backup[12]);
+ b43legacy_phy_write(dev, 0x002F, backup[13]);
+ b43legacy_phy_write(dev, 0x080F, backup[14]);
+ b43legacy_phy_write(dev, 0x0810, backup[15]);
+ }
+ b43legacy_phy_write(dev, 0x0814, backup[3]);
+ b43legacy_phy_write(dev, 0x0815, backup[4]);
+ b43legacy_phy_write(dev, 0x005A, backup[5]);
+ b43legacy_phy_write(dev, 0x0059, backup[6]);
+ b43legacy_phy_write(dev, 0x0058, backup[7]);
+ b43legacy_phy_write(dev, 0x000A, backup[8]);
+ b43legacy_phy_write(dev, 0x0003, backup[9]);
+ b43legacy_radio_write16(dev, 0x0043, backup[11]);
+ b43legacy_radio_write16(dev, 0x007A, backup[10]);
+ b43legacy_phy_write(dev, 0x0802,
+ b43legacy_phy_read(dev, 0x0802) | 0x1 | 0x2);
+ b43legacy_phy_write(dev, 0x0429,
+ b43legacy_phy_read(dev, 0x0429) | 0x8000);
+ b43legacy_set_original_gains(dev);
+ if (phy->rev >= 6) {
+ b43legacy_phy_write(dev, 0x0801, backup[16]);
+ b43legacy_phy_write(dev, 0x0060, backup[17]);
+ b43legacy_phy_write(dev, 0x0014, backup[18]);
+ b43legacy_phy_write(dev, 0x0478, backup[19]);
+ }
+ b43legacy_phy_write(dev, 0x0001, backup[0]);
+ b43legacy_phy_write(dev, 0x0812, backup[2]);
+ b43legacy_phy_write(dev, 0x0811, backup[1]);
+}
+
+void b43legacy_calc_nrssi_slope(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 backup[18] = { 0 };
+ u16 tmp;
+ s16 nrssi0;
+ s16 nrssi1;
+
+ switch (phy->type) {
+ case B43legacy_PHYTYPE_B:
+ backup[0] = b43legacy_radio_read16(dev, 0x007A);
+ backup[1] = b43legacy_radio_read16(dev, 0x0052);
+ backup[2] = b43legacy_radio_read16(dev, 0x0043);
+ backup[3] = b43legacy_phy_read(dev, 0x0030);
+ backup[4] = b43legacy_phy_read(dev, 0x0026);
+ backup[5] = b43legacy_phy_read(dev, 0x0015);
+ backup[6] = b43legacy_phy_read(dev, 0x002A);
+ backup[7] = b43legacy_phy_read(dev, 0x0020);
+ backup[8] = b43legacy_phy_read(dev, 0x005A);
+ backup[9] = b43legacy_phy_read(dev, 0x0059);
+ backup[10] = b43legacy_phy_read(dev, 0x0058);
+ backup[11] = b43legacy_read16(dev, 0x03E2);
+ backup[12] = b43legacy_read16(dev, 0x03E6);
+ backup[13] = b43legacy_read16(dev, B43legacy_MMIO_CHANNEL_EXT);
+
+ tmp = b43legacy_radio_read16(dev, 0x007A);
+ tmp &= (phy->rev >= 5) ? 0x007F : 0x000F;
+ b43legacy_radio_write16(dev, 0x007A, tmp);
+ b43legacy_phy_write(dev, 0x0030, 0x00FF);
+ b43legacy_write16(dev, 0x03EC, 0x7F7F);
+ b43legacy_phy_write(dev, 0x0026, 0x0000);
+ b43legacy_phy_write(dev, 0x0015,
+ b43legacy_phy_read(dev, 0x0015) | 0x0020);
+ b43legacy_phy_write(dev, 0x002A, 0x08A3);
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A)
+ | 0x0080);
+
+ nrssi0 = (s16)b43legacy_phy_read(dev, 0x0027);
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A)
+ & 0x007F);
+ if (phy->analog >= 2)
+ b43legacy_write16(dev, 0x03E6, 0x0040);
+ else if (phy->analog == 0)
+ b43legacy_write16(dev, 0x03E6, 0x0122);
+ else
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT,
+ b43legacy_read16(dev,
+ B43legacy_MMIO_CHANNEL_EXT) & 0x2000);
+ b43legacy_phy_write(dev, 0x0020, 0x3F3F);
+ b43legacy_phy_write(dev, 0x0015, 0xF330);
+ b43legacy_radio_write16(dev, 0x005A, 0x0060);
+ b43legacy_radio_write16(dev, 0x0043,
+ b43legacy_radio_read16(dev, 0x0043)
+ & 0x00F0);
+ b43legacy_phy_write(dev, 0x005A, 0x0480);
+ b43legacy_phy_write(dev, 0x0059, 0x0810);
+ b43legacy_phy_write(dev, 0x0058, 0x000D);
+ udelay(20);
+
+ nrssi1 = (s16)b43legacy_phy_read(dev, 0x0027);
+ b43legacy_phy_write(dev, 0x0030, backup[3]);
+ b43legacy_radio_write16(dev, 0x007A, backup[0]);
+ b43legacy_write16(dev, 0x03E2, backup[11]);
+ b43legacy_phy_write(dev, 0x0026, backup[4]);
+ b43legacy_phy_write(dev, 0x0015, backup[5]);
+ b43legacy_phy_write(dev, 0x002A, backup[6]);
+ b43legacy_synth_pu_workaround(dev, phy->channel);
+ if (phy->analog != 0)
+ b43legacy_write16(dev, 0x03F4, backup[13]);
+
+ b43legacy_phy_write(dev, 0x0020, backup[7]);
+ b43legacy_phy_write(dev, 0x005A, backup[8]);
+ b43legacy_phy_write(dev, 0x0059, backup[9]);
+ b43legacy_phy_write(dev, 0x0058, backup[10]);
+ b43legacy_radio_write16(dev, 0x0052, backup[1]);
+ b43legacy_radio_write16(dev, 0x0043, backup[2]);
+
+ if (nrssi0 == nrssi1)
+ phy->nrssislope = 0x00010000;
+ else
+ phy->nrssislope = 0x00400000 / (nrssi0 - nrssi1);
+
+ if (nrssi0 <= -4) {
+ phy->nrssi[0] = nrssi0;
+ phy->nrssi[1] = nrssi1;
+ }
+ break;
+ case B43legacy_PHYTYPE_G:
+ if (phy->radio_rev >= 9)
+ return;
+ if (phy->radio_rev == 8)
+ b43legacy_calc_nrssi_offset(dev);
+
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
+ b43legacy_phy_read(dev, B43legacy_PHY_G_CRS)
+ & 0x7FFF);
+ b43legacy_phy_write(dev, 0x0802,
+ b43legacy_phy_read(dev, 0x0802) & 0xFFFC);
+ backup[7] = b43legacy_read16(dev, 0x03E2);
+ b43legacy_write16(dev, 0x03E2,
+ b43legacy_read16(dev, 0x03E2) | 0x8000);
+ backup[0] = b43legacy_radio_read16(dev, 0x007A);
+ backup[1] = b43legacy_radio_read16(dev, 0x0052);
+ backup[2] = b43legacy_radio_read16(dev, 0x0043);
+ backup[3] = b43legacy_phy_read(dev, 0x0015);
+ backup[4] = b43legacy_phy_read(dev, 0x005A);
+ backup[5] = b43legacy_phy_read(dev, 0x0059);
+ backup[6] = b43legacy_phy_read(dev, 0x0058);
+ backup[8] = b43legacy_read16(dev, 0x03E6);
+ backup[9] = b43legacy_read16(dev, B43legacy_MMIO_CHANNEL_EXT);
+ if (phy->rev >= 3) {
+ backup[10] = b43legacy_phy_read(dev, 0x002E);
+ backup[11] = b43legacy_phy_read(dev, 0x002F);
+ backup[12] = b43legacy_phy_read(dev, 0x080F);
+ backup[13] = b43legacy_phy_read(dev,
+ B43legacy_PHY_G_LO_CONTROL);
+ backup[14] = b43legacy_phy_read(dev, 0x0801);
+ backup[15] = b43legacy_phy_read(dev, 0x0060);
+ backup[16] = b43legacy_phy_read(dev, 0x0014);
+ backup[17] = b43legacy_phy_read(dev, 0x0478);
+ b43legacy_phy_write(dev, 0x002E, 0);
+ b43legacy_phy_write(dev, B43legacy_PHY_G_LO_CONTROL, 0);
+ switch (phy->rev) {
+ case 4: case 6: case 7:
+ b43legacy_phy_write(dev, 0x0478,
+ b43legacy_phy_read(dev,
+ 0x0478) | 0x0100);
+ b43legacy_phy_write(dev, 0x0801,
+ b43legacy_phy_read(dev,
+ 0x0801) | 0x0040);
+ break;
+ case 3: case 5:
+ b43legacy_phy_write(dev, 0x0801,
+ b43legacy_phy_read(dev,
+ 0x0801) & 0xFFBF);
+ break;
+ }
+ b43legacy_phy_write(dev, 0x0060,
+ b43legacy_phy_read(dev, 0x0060)
+ | 0x0040);
+ b43legacy_phy_write(dev, 0x0014,
+ b43legacy_phy_read(dev, 0x0014)
+ | 0x0200);
+ }
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A)
+ | 0x0070);
+ b43legacy_set_all_gains(dev, 0, 8, 0);
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A)
+ & 0x00F7);
+ if (phy->rev >= 2) {
+ b43legacy_phy_write(dev, 0x0811,
+ (b43legacy_phy_read(dev, 0x0811)
+ & 0xFFCF) | 0x0030);
+ b43legacy_phy_write(dev, 0x0812,
+ (b43legacy_phy_read(dev, 0x0812)
+ & 0xFFCF) | 0x0010);
+ }
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A)
+ | 0x0080);
+ udelay(20);
+
+ nrssi0 = (s16)((b43legacy_phy_read(dev, 0x047F) >> 8) & 0x003F);
+ if (nrssi0 >= 0x0020)
+ nrssi0 -= 0x0040;
+
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A)
+ & 0x007F);
+ if (phy->analog >= 2)
+ b43legacy_phy_write(dev, 0x0003,
+ (b43legacy_phy_read(dev, 0x0003)
+ & 0xFF9F) | 0x0040);
+
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT,
+ b43legacy_read16(dev,
+ B43legacy_MMIO_CHANNEL_EXT) | 0x2000);
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A)
+ | 0x000F);
+ b43legacy_phy_write(dev, 0x0015, 0xF330);
+ if (phy->rev >= 2) {
+ b43legacy_phy_write(dev, 0x0812,
+ (b43legacy_phy_read(dev, 0x0812)
+ & 0xFFCF) | 0x0020);
+ b43legacy_phy_write(dev, 0x0811,
+ (b43legacy_phy_read(dev, 0x0811)
+ & 0xFFCF) | 0x0020);
+ }
+
+ b43legacy_set_all_gains(dev, 3, 0, 1);
+ if (phy->radio_rev == 8)
+ b43legacy_radio_write16(dev, 0x0043, 0x001F);
+ else {
+ tmp = b43legacy_radio_read16(dev, 0x0052) & 0xFF0F;
+ b43legacy_radio_write16(dev, 0x0052, tmp | 0x0060);
+ tmp = b43legacy_radio_read16(dev, 0x0043) & 0xFFF0;
+ b43legacy_radio_write16(dev, 0x0043, tmp | 0x0009);
+ }
+ b43legacy_phy_write(dev, 0x005A, 0x0480);
+ b43legacy_phy_write(dev, 0x0059, 0x0810);
+ b43legacy_phy_write(dev, 0x0058, 0x000D);
+ udelay(20);
+ nrssi1 = (s16)((b43legacy_phy_read(dev, 0x047F) >> 8) & 0x003F);
+ if (nrssi1 >= 0x0020)
+ nrssi1 -= 0x0040;
+ if (nrssi0 == nrssi1)
+ phy->nrssislope = 0x00010000;
+ else
+ phy->nrssislope = 0x00400000 / (nrssi0 - nrssi1);
+ if (nrssi0 >= -4) {
+ phy->nrssi[0] = nrssi1;
+ phy->nrssi[1] = nrssi0;
+ }
+ if (phy->rev >= 3) {
+ b43legacy_phy_write(dev, 0x002E, backup[10]);
+ b43legacy_phy_write(dev, 0x002F, backup[11]);
+ b43legacy_phy_write(dev, 0x080F, backup[12]);
+ b43legacy_phy_write(dev, B43legacy_PHY_G_LO_CONTROL,
+ backup[13]);
+ }
+ if (phy->rev >= 2) {
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_phy_read(dev, 0x0812)
+ & 0xFFCF);
+ b43legacy_phy_write(dev, 0x0811,
+ b43legacy_phy_read(dev, 0x0811)
+ & 0xFFCF);
+ }
+
+ b43legacy_radio_write16(dev, 0x007A, backup[0]);
+ b43legacy_radio_write16(dev, 0x0052, backup[1]);
+ b43legacy_radio_write16(dev, 0x0043, backup[2]);
+ b43legacy_write16(dev, 0x03E2, backup[7]);
+ b43legacy_write16(dev, 0x03E6, backup[8]);
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, backup[9]);
+ b43legacy_phy_write(dev, 0x0015, backup[3]);
+ b43legacy_phy_write(dev, 0x005A, backup[4]);
+ b43legacy_phy_write(dev, 0x0059, backup[5]);
+ b43legacy_phy_write(dev, 0x0058, backup[6]);
+ b43legacy_synth_pu_workaround(dev, phy->channel);
+ b43legacy_phy_write(dev, 0x0802,
+ b43legacy_phy_read(dev, 0x0802) | 0x0003);
+ b43legacy_set_original_gains(dev);
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
+ b43legacy_phy_read(dev, B43legacy_PHY_G_CRS)
+ | 0x8000);
+ if (phy->rev >= 3) {
+ b43legacy_phy_write(dev, 0x0801, backup[14]);
+ b43legacy_phy_write(dev, 0x0060, backup[15]);
+ b43legacy_phy_write(dev, 0x0014, backup[16]);
+ b43legacy_phy_write(dev, 0x0478, backup[17]);
+ }
+ b43legacy_nrssi_mem_update(dev);
+ b43legacy_calc_nrssi_threshold(dev);
+ break;
+ default:
+ B43legacy_BUG_ON(1);
+ }
+}
+
+void b43legacy_calc_nrssi_threshold(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ s32 threshold;
+ s32 a;
+ s32 b;
+ s16 tmp16;
+ u16 tmp_u16;
+
+ switch (phy->type) {
+ case B43legacy_PHYTYPE_B: {
+ if (phy->radio_ver != 0x2050)
+ return;
+ if (!(dev->dev->bus->sprom.boardflags_lo &
+ B43legacy_BFL_RSSI))
+ return;
+
+ if (phy->radio_rev >= 6) {
+ threshold = (phy->nrssi[1] - phy->nrssi[0]) * 32;
+ threshold += 20 * (phy->nrssi[0] + 1);
+ threshold /= 40;
+ } else
+ threshold = phy->nrssi[1] - 5;
+
+ threshold = clamp_val(threshold, 0, 0x3E);
+ b43legacy_phy_read(dev, 0x0020); /* dummy read */
+ b43legacy_phy_write(dev, 0x0020, (((u16)threshold) << 8)
+ | 0x001C);
+
+ if (phy->radio_rev >= 6) {
+ b43legacy_phy_write(dev, 0x0087, 0x0E0D);
+ b43legacy_phy_write(dev, 0x0086, 0x0C0B);
+ b43legacy_phy_write(dev, 0x0085, 0x0A09);
+ b43legacy_phy_write(dev, 0x0084, 0x0808);
+ b43legacy_phy_write(dev, 0x0083, 0x0808);
+ b43legacy_phy_write(dev, 0x0082, 0x0604);
+ b43legacy_phy_write(dev, 0x0081, 0x0302);
+ b43legacy_phy_write(dev, 0x0080, 0x0100);
+ }
+ break;
+ }
+ case B43legacy_PHYTYPE_G:
+ if (!phy->gmode ||
+ !(dev->dev->bus->sprom.boardflags_lo &
+ B43legacy_BFL_RSSI)) {
+ tmp16 = b43legacy_nrssi_hw_read(dev, 0x20);
+ if (tmp16 >= 0x20)
+ tmp16 -= 0x40;
+ if (tmp16 < 3)
+ b43legacy_phy_write(dev, 0x048A,
+ (b43legacy_phy_read(dev,
+ 0x048A) & 0xF000) | 0x09EB);
+ else
+ b43legacy_phy_write(dev, 0x048A,
+ (b43legacy_phy_read(dev,
+ 0x048A) & 0xF000) | 0x0AED);
+ } else {
+ if (phy->interfmode ==
+ B43legacy_RADIO_INTERFMODE_NONWLAN) {
+ a = 0xE;
+ b = 0xA;
+ } else if (!phy->aci_wlan_automatic &&
+ phy->aci_enable) {
+ a = 0x13;
+ b = 0x12;
+ } else {
+ a = 0xE;
+ b = 0x11;
+ }
+
+ a = a * (phy->nrssi[1] - phy->nrssi[0]);
+ a += (phy->nrssi[0] << 6);
+ if (a < 32)
+ a += 31;
+ else
+ a += 32;
+ a = a >> 6;
+ a = clamp_val(a, -31, 31);
+
+ b = b * (phy->nrssi[1] - phy->nrssi[0]);
+ b += (phy->nrssi[0] << 6);
+ if (b < 32)
+ b += 31;
+ else
+ b += 32;
+ b = b >> 6;
+ b = clamp_val(b, -31, 31);
+
+ tmp_u16 = b43legacy_phy_read(dev, 0x048A) & 0xF000;
+ tmp_u16 |= ((u32)b & 0x0000003F);
+ tmp_u16 |= (((u32)a & 0x0000003F) << 6);
+ b43legacy_phy_write(dev, 0x048A, tmp_u16);
+ }
+ break;
+ default:
+ B43legacy_BUG_ON(1);
+ }
+}
+
+/* Stack implementation to save/restore values from the
+ * interference mitigation code.
+ * It is save to restore values in random order.
+ */
+static void _stack_save(u32 *_stackptr, size_t *stackidx,
+ u8 id, u16 offset, u16 value)
+{
+ u32 *stackptr = &(_stackptr[*stackidx]);
+
+ B43legacy_WARN_ON(!((offset & 0xE000) == 0x0000));
+ B43legacy_WARN_ON(!((id & 0xF8) == 0x00));
+ *stackptr = offset;
+ *stackptr |= ((u32)id) << 13;
+ *stackptr |= ((u32)value) << 16;
+ (*stackidx)++;
+ B43legacy_WARN_ON(!(*stackidx < B43legacy_INTERFSTACK_SIZE));
+}
+
+static u16 _stack_restore(u32 *stackptr,
+ u8 id, u16 offset)
+{
+ size_t i;
+
+ B43legacy_WARN_ON(!((offset & 0xE000) == 0x0000));
+ B43legacy_WARN_ON(!((id & 0xF8) == 0x00));
+ for (i = 0; i < B43legacy_INTERFSTACK_SIZE; i++, stackptr++) {
+ if ((*stackptr & 0x00001FFF) != offset)
+ continue;
+ if (((*stackptr & 0x00007000) >> 13) != id)
+ continue;
+ return ((*stackptr & 0xFFFF0000) >> 16);
+ }
+ B43legacy_BUG_ON(1);
+
+ return 0;
+}
+
+#define phy_stacksave(offset) \
+ do { \
+ _stack_save(stack, &stackidx, 0x1, (offset), \
+ b43legacy_phy_read(dev, (offset))); \
+ } while (0)
+#define phy_stackrestore(offset) \
+ do { \
+ b43legacy_phy_write(dev, (offset), \
+ _stack_restore(stack, 0x1, \
+ (offset))); \
+ } while (0)
+#define radio_stacksave(offset) \
+ do { \
+ _stack_save(stack, &stackidx, 0x2, (offset), \
+ b43legacy_radio_read16(dev, (offset))); \
+ } while (0)
+#define radio_stackrestore(offset) \
+ do { \
+ b43legacy_radio_write16(dev, (offset), \
+ _stack_restore(stack, 0x2, \
+ (offset))); \
+ } while (0)
+#define ilt_stacksave(offset) \
+ do { \
+ _stack_save(stack, &stackidx, 0x3, (offset), \
+ b43legacy_ilt_read(dev, (offset))); \
+ } while (0)
+#define ilt_stackrestore(offset) \
+ do { \
+ b43legacy_ilt_write(dev, (offset), \
+ _stack_restore(stack, 0x3, \
+ (offset))); \
+ } while (0)
+
+static void
+b43legacy_radio_interference_mitigation_enable(struct b43legacy_wldev *dev,
+ int mode)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 tmp;
+ u16 flipped;
+ u32 tmp32;
+ size_t stackidx = 0;
+ u32 *stack = phy->interfstack;
+
+ switch (mode) {
+ case B43legacy_RADIO_INTERFMODE_NONWLAN:
+ if (phy->rev != 1) {
+ b43legacy_phy_write(dev, 0x042B,
+ b43legacy_phy_read(dev, 0x042B)
+ | 0x0800);
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
+ b43legacy_phy_read(dev,
+ B43legacy_PHY_G_CRS) & ~0x4000);
+ break;
+ }
+ radio_stacksave(0x0078);
+ tmp = (b43legacy_radio_read16(dev, 0x0078) & 0x001E);
+ flipped = flip_4bit(tmp);
+ if (flipped < 10 && flipped >= 8)
+ flipped = 7;
+ else if (flipped >= 10)
+ flipped -= 3;
+ flipped = flip_4bit(flipped);
+ flipped = (flipped << 1) | 0x0020;
+ b43legacy_radio_write16(dev, 0x0078, flipped);
+
+ b43legacy_calc_nrssi_threshold(dev);
+
+ phy_stacksave(0x0406);
+ b43legacy_phy_write(dev, 0x0406, 0x7E28);
+
+ b43legacy_phy_write(dev, 0x042B,
+ b43legacy_phy_read(dev, 0x042B) | 0x0800);
+ b43legacy_phy_write(dev, B43legacy_PHY_RADIO_BITFIELD,
+ b43legacy_phy_read(dev,
+ B43legacy_PHY_RADIO_BITFIELD) | 0x1000);
+
+ phy_stacksave(0x04A0);
+ b43legacy_phy_write(dev, 0x04A0,
+ (b43legacy_phy_read(dev, 0x04A0) & 0xC0C0)
+ | 0x0008);
+ phy_stacksave(0x04A1);
+ b43legacy_phy_write(dev, 0x04A1,
+ (b43legacy_phy_read(dev, 0x04A1) & 0xC0C0)
+ | 0x0605);
+ phy_stacksave(0x04A2);
+ b43legacy_phy_write(dev, 0x04A2,
+ (b43legacy_phy_read(dev, 0x04A2) & 0xC0C0)
+ | 0x0204);
+ phy_stacksave(0x04A8);
+ b43legacy_phy_write(dev, 0x04A8,
+ (b43legacy_phy_read(dev, 0x04A8) & 0xC0C0)
+ | 0x0803);
+ phy_stacksave(0x04AB);
+ b43legacy_phy_write(dev, 0x04AB,
+ (b43legacy_phy_read(dev, 0x04AB) & 0xC0C0)
+ | 0x0605);
+
+ phy_stacksave(0x04A7);
+ b43legacy_phy_write(dev, 0x04A7, 0x0002);
+ phy_stacksave(0x04A3);
+ b43legacy_phy_write(dev, 0x04A3, 0x287A);
+ phy_stacksave(0x04A9);
+ b43legacy_phy_write(dev, 0x04A9, 0x2027);
+ phy_stacksave(0x0493);
+ b43legacy_phy_write(dev, 0x0493, 0x32F5);
+ phy_stacksave(0x04AA);
+ b43legacy_phy_write(dev, 0x04AA, 0x2027);
+ phy_stacksave(0x04AC);
+ b43legacy_phy_write(dev, 0x04AC, 0x32F5);
+ break;
+ case B43legacy_RADIO_INTERFMODE_MANUALWLAN:
+ if (b43legacy_phy_read(dev, 0x0033) & 0x0800)
+ break;
+
+ phy->aci_enable = true;
+
+ phy_stacksave(B43legacy_PHY_RADIO_BITFIELD);
+ phy_stacksave(B43legacy_PHY_G_CRS);
+ if (phy->rev < 2)
+ phy_stacksave(0x0406);
+ else {
+ phy_stacksave(0x04C0);
+ phy_stacksave(0x04C1);
+ }
+ phy_stacksave(0x0033);
+ phy_stacksave(0x04A7);
+ phy_stacksave(0x04A3);
+ phy_stacksave(0x04A9);
+ phy_stacksave(0x04AA);
+ phy_stacksave(0x04AC);
+ phy_stacksave(0x0493);
+ phy_stacksave(0x04A1);
+ phy_stacksave(0x04A0);
+ phy_stacksave(0x04A2);
+ phy_stacksave(0x048A);
+ phy_stacksave(0x04A8);
+ phy_stacksave(0x04AB);
+ if (phy->rev == 2) {
+ phy_stacksave(0x04AD);
+ phy_stacksave(0x04AE);
+ } else if (phy->rev >= 3) {
+ phy_stacksave(0x04AD);
+ phy_stacksave(0x0415);
+ phy_stacksave(0x0416);
+ phy_stacksave(0x0417);
+ ilt_stacksave(0x1A00 + 0x2);
+ ilt_stacksave(0x1A00 + 0x3);
+ }
+ phy_stacksave(0x042B);
+ phy_stacksave(0x048C);
+
+ b43legacy_phy_write(dev, B43legacy_PHY_RADIO_BITFIELD,
+ b43legacy_phy_read(dev,
+ B43legacy_PHY_RADIO_BITFIELD) & ~0x1000);
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
+ (b43legacy_phy_read(dev,
+ B43legacy_PHY_G_CRS)
+ & 0xFFFC) | 0x0002);
+
+ b43legacy_phy_write(dev, 0x0033, 0x0800);
+ b43legacy_phy_write(dev, 0x04A3, 0x2027);
+ b43legacy_phy_write(dev, 0x04A9, 0x1CA8);
+ b43legacy_phy_write(dev, 0x0493, 0x287A);
+ b43legacy_phy_write(dev, 0x04AA, 0x1CA8);
+ b43legacy_phy_write(dev, 0x04AC, 0x287A);
+
+ b43legacy_phy_write(dev, 0x04A0,
+ (b43legacy_phy_read(dev, 0x04A0)
+ & 0xFFC0) | 0x001A);
+ b43legacy_phy_write(dev, 0x04A7, 0x000D);
+
+ if (phy->rev < 2)
+ b43legacy_phy_write(dev, 0x0406, 0xFF0D);
+ else if (phy->rev == 2) {
+ b43legacy_phy_write(dev, 0x04C0, 0xFFFF);
+ b43legacy_phy_write(dev, 0x04C1, 0x00A9);
+ } else {
+ b43legacy_phy_write(dev, 0x04C0, 0x00C1);
+ b43legacy_phy_write(dev, 0x04C1, 0x0059);
+ }
+
+ b43legacy_phy_write(dev, 0x04A1,
+ (b43legacy_phy_read(dev, 0x04A1)
+ & 0xC0FF) | 0x1800);
+ b43legacy_phy_write(dev, 0x04A1,
+ (b43legacy_phy_read(dev, 0x04A1)
+ & 0xFFC0) | 0x0015);
+ b43legacy_phy_write(dev, 0x04A8,
+ (b43legacy_phy_read(dev, 0x04A8)
+ & 0xCFFF) | 0x1000);
+ b43legacy_phy_write(dev, 0x04A8,
+ (b43legacy_phy_read(dev, 0x04A8)
+ & 0xF0FF) | 0x0A00);
+ b43legacy_phy_write(dev, 0x04AB,
+ (b43legacy_phy_read(dev, 0x04AB)
+ & 0xCFFF) | 0x1000);
+ b43legacy_phy_write(dev, 0x04AB,
+ (b43legacy_phy_read(dev, 0x04AB)
+ & 0xF0FF) | 0x0800);
+ b43legacy_phy_write(dev, 0x04AB,
+ (b43legacy_phy_read(dev, 0x04AB)
+ & 0xFFCF) | 0x0010);
+ b43legacy_phy_write(dev, 0x04AB,
+ (b43legacy_phy_read(dev, 0x04AB)
+ & 0xFFF0) | 0x0005);
+ b43legacy_phy_write(dev, 0x04A8,
+ (b43legacy_phy_read(dev, 0x04A8)
+ & 0xFFCF) | 0x0010);
+ b43legacy_phy_write(dev, 0x04A8,
+ (b43legacy_phy_read(dev, 0x04A8)
+ & 0xFFF0) | 0x0006);
+ b43legacy_phy_write(dev, 0x04A2,
+ (b43legacy_phy_read(dev, 0x04A2)
+ & 0xF0FF) | 0x0800);
+ b43legacy_phy_write(dev, 0x04A0,
+ (b43legacy_phy_read(dev, 0x04A0)
+ & 0xF0FF) | 0x0500);
+ b43legacy_phy_write(dev, 0x04A2,
+ (b43legacy_phy_read(dev, 0x04A2)
+ & 0xFFF0) | 0x000B);
+
+ if (phy->rev >= 3) {
+ b43legacy_phy_write(dev, 0x048A,
+ b43legacy_phy_read(dev, 0x048A)
+ & ~0x8000);
+ b43legacy_phy_write(dev, 0x0415,
+ (b43legacy_phy_read(dev, 0x0415)
+ & 0x8000) | 0x36D8);
+ b43legacy_phy_write(dev, 0x0416,
+ (b43legacy_phy_read(dev, 0x0416)
+ & 0x8000) | 0x36D8);
+ b43legacy_phy_write(dev, 0x0417,
+ (b43legacy_phy_read(dev, 0x0417)
+ & 0xFE00) | 0x016D);
+ } else {
+ b43legacy_phy_write(dev, 0x048A,
+ b43legacy_phy_read(dev, 0x048A)
+ | 0x1000);
+ b43legacy_phy_write(dev, 0x048A,
+ (b43legacy_phy_read(dev, 0x048A)
+ & 0x9FFF) | 0x2000);
+ tmp32 = b43legacy_shm_read32(dev, B43legacy_SHM_SHARED,
+ B43legacy_UCODEFLAGS_OFFSET);
+ if (!(tmp32 & 0x800)) {
+ tmp32 |= 0x800;
+ b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
+ B43legacy_UCODEFLAGS_OFFSET,
+ tmp32);
+ }
+ }
+ if (phy->rev >= 2)
+ b43legacy_phy_write(dev, 0x042B,
+ b43legacy_phy_read(dev, 0x042B)
+ | 0x0800);
+ b43legacy_phy_write(dev, 0x048C,
+ (b43legacy_phy_read(dev, 0x048C)
+ & 0xF0FF) | 0x0200);
+ if (phy->rev == 2) {
+ b43legacy_phy_write(dev, 0x04AE,
+ (b43legacy_phy_read(dev, 0x04AE)
+ & 0xFF00) | 0x007F);
+ b43legacy_phy_write(dev, 0x04AD,
+ (b43legacy_phy_read(dev, 0x04AD)
+ & 0x00FF) | 0x1300);
+ } else if (phy->rev >= 6) {
+ b43legacy_ilt_write(dev, 0x1A00 + 0x3, 0x007F);
+ b43legacy_ilt_write(dev, 0x1A00 + 0x2, 0x007F);
+ b43legacy_phy_write(dev, 0x04AD,
+ b43legacy_phy_read(dev, 0x04AD)
+ & 0x00FF);
+ }
+ b43legacy_calc_nrssi_slope(dev);
+ break;
+ default:
+ B43legacy_BUG_ON(1);
+ }
+}
+
+static void
+b43legacy_radio_interference_mitigation_disable(struct b43legacy_wldev *dev,
+ int mode)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u32 tmp32;
+ u32 *stack = phy->interfstack;
+
+ switch (mode) {
+ case B43legacy_RADIO_INTERFMODE_NONWLAN:
+ if (phy->rev != 1) {
+ b43legacy_phy_write(dev, 0x042B,
+ b43legacy_phy_read(dev, 0x042B)
+ & ~0x0800);
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
+ b43legacy_phy_read(dev,
+ B43legacy_PHY_G_CRS) | 0x4000);
+ break;
+ }
+ phy_stackrestore(0x0078);
+ b43legacy_calc_nrssi_threshold(dev);
+ phy_stackrestore(0x0406);
+ b43legacy_phy_write(dev, 0x042B,
+ b43legacy_phy_read(dev, 0x042B) & ~0x0800);
+ if (!dev->bad_frames_preempt)
+ b43legacy_phy_write(dev, B43legacy_PHY_RADIO_BITFIELD,
+ b43legacy_phy_read(dev,
+ B43legacy_PHY_RADIO_BITFIELD)
+ & ~(1 << 11));
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
+ b43legacy_phy_read(dev, B43legacy_PHY_G_CRS)
+ | 0x4000);
+ phy_stackrestore(0x04A0);
+ phy_stackrestore(0x04A1);
+ phy_stackrestore(0x04A2);
+ phy_stackrestore(0x04A8);
+ phy_stackrestore(0x04AB);
+ phy_stackrestore(0x04A7);
+ phy_stackrestore(0x04A3);
+ phy_stackrestore(0x04A9);
+ phy_stackrestore(0x0493);
+ phy_stackrestore(0x04AA);
+ phy_stackrestore(0x04AC);
+ break;
+ case B43legacy_RADIO_INTERFMODE_MANUALWLAN:
+ if (!(b43legacy_phy_read(dev, 0x0033) & 0x0800))
+ break;
+
+ phy->aci_enable = false;
+
+ phy_stackrestore(B43legacy_PHY_RADIO_BITFIELD);
+ phy_stackrestore(B43legacy_PHY_G_CRS);
+ phy_stackrestore(0x0033);
+ phy_stackrestore(0x04A3);
+ phy_stackrestore(0x04A9);
+ phy_stackrestore(0x0493);
+ phy_stackrestore(0x04AA);
+ phy_stackrestore(0x04AC);
+ phy_stackrestore(0x04A0);
+ phy_stackrestore(0x04A7);
+ if (phy->rev >= 2) {
+ phy_stackrestore(0x04C0);
+ phy_stackrestore(0x04C1);
+ } else
+ phy_stackrestore(0x0406);
+ phy_stackrestore(0x04A1);
+ phy_stackrestore(0x04AB);
+ phy_stackrestore(0x04A8);
+ if (phy->rev == 2) {
+ phy_stackrestore(0x04AD);
+ phy_stackrestore(0x04AE);
+ } else if (phy->rev >= 3) {
+ phy_stackrestore(0x04AD);
+ phy_stackrestore(0x0415);
+ phy_stackrestore(0x0416);
+ phy_stackrestore(0x0417);
+ ilt_stackrestore(0x1A00 + 0x2);
+ ilt_stackrestore(0x1A00 + 0x3);
+ }
+ phy_stackrestore(0x04A2);
+ phy_stackrestore(0x04A8);
+ phy_stackrestore(0x042B);
+ phy_stackrestore(0x048C);
+ tmp32 = b43legacy_shm_read32(dev, B43legacy_SHM_SHARED,
+ B43legacy_UCODEFLAGS_OFFSET);
+ if (tmp32 & 0x800) {
+ tmp32 &= ~0x800;
+ b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
+ B43legacy_UCODEFLAGS_OFFSET,
+ tmp32);
+ }
+ b43legacy_calc_nrssi_slope(dev);
+ break;
+ default:
+ B43legacy_BUG_ON(1);
+ }
+}
+
+#undef phy_stacksave
+#undef phy_stackrestore
+#undef radio_stacksave
+#undef radio_stackrestore
+#undef ilt_stacksave
+#undef ilt_stackrestore
+
+int b43legacy_radio_set_interference_mitigation(struct b43legacy_wldev *dev,
+ int mode)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ int currentmode;
+
+ if ((phy->type != B43legacy_PHYTYPE_G) ||
+ (phy->rev == 0) || (!phy->gmode))
+ return -ENODEV;
+
+ phy->aci_wlan_automatic = false;
+ switch (mode) {
+ case B43legacy_RADIO_INTERFMODE_AUTOWLAN:
+ phy->aci_wlan_automatic = true;
+ if (phy->aci_enable)
+ mode = B43legacy_RADIO_INTERFMODE_MANUALWLAN;
+ else
+ mode = B43legacy_RADIO_INTERFMODE_NONE;
+ break;
+ case B43legacy_RADIO_INTERFMODE_NONE:
+ case B43legacy_RADIO_INTERFMODE_NONWLAN:
+ case B43legacy_RADIO_INTERFMODE_MANUALWLAN:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ currentmode = phy->interfmode;
+ if (currentmode == mode)
+ return 0;
+ if (currentmode != B43legacy_RADIO_INTERFMODE_NONE)
+ b43legacy_radio_interference_mitigation_disable(dev,
+ currentmode);
+
+ if (mode == B43legacy_RADIO_INTERFMODE_NONE) {
+ phy->aci_enable = false;
+ phy->aci_hw_rssi = false;
+ } else
+ b43legacy_radio_interference_mitigation_enable(dev, mode);
+ phy->interfmode = mode;
+
+ return 0;
+}
+
+u16 b43legacy_radio_calibrationvalue(struct b43legacy_wldev *dev)
+{
+ u16 reg;
+ u16 index;
+ u16 ret;
+
+ reg = b43legacy_radio_read16(dev, 0x0060);
+ index = (reg & 0x001E) >> 1;
+ ret = rcc_table[index] << 1;
+ ret |= (reg & 0x0001);
+ ret |= 0x0020;
+
+ return ret;
+}
+
+#define LPD(L, P, D) (((L) << 2) | ((P) << 1) | ((D) << 0))
+static u16 b43legacy_get_812_value(struct b43legacy_wldev *dev, u8 lpd)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 loop_or = 0;
+ u16 adj_loopback_gain = phy->loopback_gain[0];
+ u8 loop;
+ u16 extern_lna_control;
+
+ if (!phy->gmode)
+ return 0;
+ if (!has_loopback_gain(phy)) {
+ if (phy->rev < 7 || !(dev->dev->bus->sprom.boardflags_lo
+ & B43legacy_BFL_EXTLNA)) {
+ switch (lpd) {
+ case LPD(0, 1, 1):
+ return 0x0FB2;
+ case LPD(0, 0, 1):
+ return 0x00B2;
+ case LPD(1, 0, 1):
+ return 0x30B2;
+ case LPD(1, 0, 0):
+ return 0x30B3;
+ default:
+ B43legacy_BUG_ON(1);
+ }
+ } else {
+ switch (lpd) {
+ case LPD(0, 1, 1):
+ return 0x8FB2;
+ case LPD(0, 0, 1):
+ return 0x80B2;
+ case LPD(1, 0, 1):
+ return 0x20B2;
+ case LPD(1, 0, 0):
+ return 0x20B3;
+ default:
+ B43legacy_BUG_ON(1);
+ }
+ }
+ } else {
+ if (phy->radio_rev == 8)
+ adj_loopback_gain += 0x003E;
+ else
+ adj_loopback_gain += 0x0026;
+ if (adj_loopback_gain >= 0x46) {
+ adj_loopback_gain -= 0x46;
+ extern_lna_control = 0x3000;
+ } else if (adj_loopback_gain >= 0x3A) {
+ adj_loopback_gain -= 0x3A;
+ extern_lna_control = 0x2000;
+ } else if (adj_loopback_gain >= 0x2E) {
+ adj_loopback_gain -= 0x2E;
+ extern_lna_control = 0x1000;
+ } else {
+ adj_loopback_gain -= 0x10;
+ extern_lna_control = 0x0000;
+ }
+ for (loop = 0; loop < 16; loop++) {
+ u16 tmp = adj_loopback_gain - 6 * loop;
+ if (tmp < 6)
+ break;
+ }
+
+ loop_or = (loop << 8) | extern_lna_control;
+ if (phy->rev >= 7 && dev->dev->bus->sprom.boardflags_lo
+ & B43legacy_BFL_EXTLNA) {
+ if (extern_lna_control)
+ loop_or |= 0x8000;
+ switch (lpd) {
+ case LPD(0, 1, 1):
+ return 0x8F92;
+ case LPD(0, 0, 1):
+ return (0x8092 | loop_or);
+ case LPD(1, 0, 1):
+ return (0x2092 | loop_or);
+ case LPD(1, 0, 0):
+ return (0x2093 | loop_or);
+ default:
+ B43legacy_BUG_ON(1);
+ }
+ } else {
+ switch (lpd) {
+ case LPD(0, 1, 1):
+ return 0x0F92;
+ case LPD(0, 0, 1):
+ case LPD(1, 0, 1):
+ return (0x0092 | loop_or);
+ case LPD(1, 0, 0):
+ return (0x0093 | loop_or);
+ default:
+ B43legacy_BUG_ON(1);
+ }
+ }
+ }
+ return 0;
+}
+
+u16 b43legacy_radio_init2050(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 backup[21] = { 0 };
+ u16 ret;
+ u16 i;
+ u16 j;
+ u32 tmp1 = 0;
+ u32 tmp2 = 0;
+
+ backup[0] = b43legacy_radio_read16(dev, 0x0043);
+ backup[14] = b43legacy_radio_read16(dev, 0x0051);
+ backup[15] = b43legacy_radio_read16(dev, 0x0052);
+ backup[1] = b43legacy_phy_read(dev, 0x0015);
+ backup[16] = b43legacy_phy_read(dev, 0x005A);
+ backup[17] = b43legacy_phy_read(dev, 0x0059);
+ backup[18] = b43legacy_phy_read(dev, 0x0058);
+ if (phy->type == B43legacy_PHYTYPE_B) {
+ backup[2] = b43legacy_phy_read(dev, 0x0030);
+ backup[3] = b43legacy_read16(dev, 0x03EC);
+ b43legacy_phy_write(dev, 0x0030, 0x00FF);
+ b43legacy_write16(dev, 0x03EC, 0x3F3F);
+ } else {
+ if (phy->gmode) {
+ backup[4] = b43legacy_phy_read(dev, 0x0811);
+ backup[5] = b43legacy_phy_read(dev, 0x0812);
+ backup[6] = b43legacy_phy_read(dev, 0x0814);
+ backup[7] = b43legacy_phy_read(dev, 0x0815);
+ backup[8] = b43legacy_phy_read(dev,
+ B43legacy_PHY_G_CRS);
+ backup[9] = b43legacy_phy_read(dev, 0x0802);
+ b43legacy_phy_write(dev, 0x0814,
+ (b43legacy_phy_read(dev, 0x0814)
+ | 0x0003));
+ b43legacy_phy_write(dev, 0x0815,
+ (b43legacy_phy_read(dev, 0x0815)
+ & 0xFFFC));
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
+ (b43legacy_phy_read(dev,
+ B43legacy_PHY_G_CRS) & 0x7FFF));
+ b43legacy_phy_write(dev, 0x0802,
+ (b43legacy_phy_read(dev, 0x0802)
+ & 0xFFFC));
+ if (phy->rev > 1) { /* loopback gain enabled */
+ backup[19] = b43legacy_phy_read(dev, 0x080F);
+ backup[20] = b43legacy_phy_read(dev, 0x0810);
+ if (phy->rev >= 3)
+ b43legacy_phy_write(dev, 0x080F,
+ 0xC020);
+ else
+ b43legacy_phy_write(dev, 0x080F,
+ 0x8020);
+ b43legacy_phy_write(dev, 0x0810, 0x0000);
+ }
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_get_812_value(dev,
+ LPD(0, 1, 1)));
+ if (phy->rev < 7 ||
+ !(dev->dev->bus->sprom.boardflags_lo
+ & B43legacy_BFL_EXTLNA))
+ b43legacy_phy_write(dev, 0x0811, 0x01B3);
+ else
+ b43legacy_phy_write(dev, 0x0811, 0x09B3);
+ }
+ }
+ b43legacy_write16(dev, B43legacy_MMIO_PHY_RADIO,
+ (b43legacy_read16(dev, B43legacy_MMIO_PHY_RADIO)
+ | 0x8000));
+ backup[10] = b43legacy_phy_read(dev, 0x0035);
+ b43legacy_phy_write(dev, 0x0035,
+ (b43legacy_phy_read(dev, 0x0035) & 0xFF7F));
+ backup[11] = b43legacy_read16(dev, 0x03E6);
+ backup[12] = b43legacy_read16(dev, B43legacy_MMIO_CHANNEL_EXT);
+
+ /* Initialization */
+ if (phy->analog == 0)
+ b43legacy_write16(dev, 0x03E6, 0x0122);
+ else {
+ if (phy->analog >= 2)
+ b43legacy_phy_write(dev, 0x0003,
+ (b43legacy_phy_read(dev, 0x0003)
+ & 0xFFBF) | 0x0040);
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT,
+ (b43legacy_read16(dev,
+ B43legacy_MMIO_CHANNEL_EXT) | 0x2000));
+ }
+
+ ret = b43legacy_radio_calibrationvalue(dev);
+
+ if (phy->type == B43legacy_PHYTYPE_B)
+ b43legacy_radio_write16(dev, 0x0078, 0x0026);
+
+ if (phy->gmode)
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_get_812_value(dev,
+ LPD(0, 1, 1)));
+ b43legacy_phy_write(dev, 0x0015, 0xBFAF);
+ b43legacy_phy_write(dev, 0x002B, 0x1403);
+ if (phy->gmode)
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_get_812_value(dev,
+ LPD(0, 0, 1)));
+ b43legacy_phy_write(dev, 0x0015, 0xBFA0);
+ b43legacy_radio_write16(dev, 0x0051,
+ (b43legacy_radio_read16(dev, 0x0051)
+ | 0x0004));
+ if (phy->radio_rev == 8)
+ b43legacy_radio_write16(dev, 0x0043, 0x001F);
+ else {
+ b43legacy_radio_write16(dev, 0x0052, 0x0000);
+ b43legacy_radio_write16(dev, 0x0043,
+ (b43legacy_radio_read16(dev, 0x0043)
+ & 0xFFF0) | 0x0009);
+ }
+ b43legacy_phy_write(dev, 0x0058, 0x0000);
+
+ for (i = 0; i < 16; i++) {
+ b43legacy_phy_write(dev, 0x005A, 0x0480);
+ b43legacy_phy_write(dev, 0x0059, 0xC810);
+ b43legacy_phy_write(dev, 0x0058, 0x000D);
+ if (phy->gmode)
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_get_812_value(dev,
+ LPD(1, 0, 1)));
+ b43legacy_phy_write(dev, 0x0015, 0xAFB0);
+ udelay(10);
+ if (phy->gmode)
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_get_812_value(dev,
+ LPD(1, 0, 1)));
+ b43legacy_phy_write(dev, 0x0015, 0xEFB0);
+ udelay(10);
+ if (phy->gmode)
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_get_812_value(dev,
+ LPD(1, 0, 0)));
+ b43legacy_phy_write(dev, 0x0015, 0xFFF0);
+ udelay(20);
+ tmp1 += b43legacy_phy_read(dev, 0x002D);
+ b43legacy_phy_write(dev, 0x0058, 0x0000);
+ if (phy->gmode)
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_get_812_value(dev,
+ LPD(1, 0, 1)));
+ b43legacy_phy_write(dev, 0x0015, 0xAFB0);
+ }
+
+ tmp1++;
+ tmp1 >>= 9;
+ udelay(10);
+ b43legacy_phy_write(dev, 0x0058, 0x0000);
+
+ for (i = 0; i < 16; i++) {
+ b43legacy_radio_write16(dev, 0x0078, (flip_4bit(i) << 1)
+ | 0x0020);
+ backup[13] = b43legacy_radio_read16(dev, 0x0078);
+ udelay(10);
+ for (j = 0; j < 16; j++) {
+ b43legacy_phy_write(dev, 0x005A, 0x0D80);
+ b43legacy_phy_write(dev, 0x0059, 0xC810);
+ b43legacy_phy_write(dev, 0x0058, 0x000D);
+ if (phy->gmode)
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_get_812_value(dev,
+ LPD(1, 0, 1)));
+ b43legacy_phy_write(dev, 0x0015, 0xAFB0);
+ udelay(10);
+ if (phy->gmode)
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_get_812_value(dev,
+ LPD(1, 0, 1)));
+ b43legacy_phy_write(dev, 0x0015, 0xEFB0);
+ udelay(10);
+ if (phy->gmode)
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_get_812_value(dev,
+ LPD(1, 0, 0)));
+ b43legacy_phy_write(dev, 0x0015, 0xFFF0);
+ udelay(10);
+ tmp2 += b43legacy_phy_read(dev, 0x002D);
+ b43legacy_phy_write(dev, 0x0058, 0x0000);
+ if (phy->gmode)
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_get_812_value(dev,
+ LPD(1, 0, 1)));
+ b43legacy_phy_write(dev, 0x0015, 0xAFB0);
+ }
+ tmp2++;
+ tmp2 >>= 8;
+ if (tmp1 < tmp2)
+ break;
+ }
+
+ /* Restore the registers */
+ b43legacy_phy_write(dev, 0x0015, backup[1]);
+ b43legacy_radio_write16(dev, 0x0051, backup[14]);
+ b43legacy_radio_write16(dev, 0x0052, backup[15]);
+ b43legacy_radio_write16(dev, 0x0043, backup[0]);
+ b43legacy_phy_write(dev, 0x005A, backup[16]);
+ b43legacy_phy_write(dev, 0x0059, backup[17]);
+ b43legacy_phy_write(dev, 0x0058, backup[18]);
+ b43legacy_write16(dev, 0x03E6, backup[11]);
+ if (phy->analog != 0)
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, backup[12]);
+ b43legacy_phy_write(dev, 0x0035, backup[10]);
+ b43legacy_radio_selectchannel(dev, phy->channel, 1);
+ if (phy->type == B43legacy_PHYTYPE_B) {
+ b43legacy_phy_write(dev, 0x0030, backup[2]);
+ b43legacy_write16(dev, 0x03EC, backup[3]);
+ } else {
+ if (phy->gmode) {
+ b43legacy_write16(dev, B43legacy_MMIO_PHY_RADIO,
+ (b43legacy_read16(dev,
+ B43legacy_MMIO_PHY_RADIO) & 0x7FFF));
+ b43legacy_phy_write(dev, 0x0811, backup[4]);
+ b43legacy_phy_write(dev, 0x0812, backup[5]);
+ b43legacy_phy_write(dev, 0x0814, backup[6]);
+ b43legacy_phy_write(dev, 0x0815, backup[7]);
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
+ backup[8]);
+ b43legacy_phy_write(dev, 0x0802, backup[9]);
+ if (phy->rev > 1) {
+ b43legacy_phy_write(dev, 0x080F, backup[19]);
+ b43legacy_phy_write(dev, 0x0810, backup[20]);
+ }
+ }
+ }
+ if (i >= 15)
+ ret = backup[13];
+
+ return ret;
+}
+
+static inline
+u16 freq_r3A_value(u16 frequency)
+{
+ u16 value;
+
+ if (frequency < 5091)
+ value = 0x0040;
+ else if (frequency < 5321)
+ value = 0x0000;
+ else if (frequency < 5806)
+ value = 0x0080;
+ else
+ value = 0x0040;
+
+ return value;
+}
+
+int b43legacy_radio_selectchannel(struct b43legacy_wldev *dev,
+ u8 channel,
+ int synthetic_pu_workaround)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+
+ if (channel == 0xFF) {
+ switch (phy->type) {
+ case B43legacy_PHYTYPE_B:
+ case B43legacy_PHYTYPE_G:
+ channel = B43legacy_RADIO_DEFAULT_CHANNEL_BG;
+ break;
+ default:
+ B43legacy_WARN_ON(1);
+ }
+ }
+
+/* TODO: Check if channel is valid - return -EINVAL if not */
+ if (synthetic_pu_workaround)
+ b43legacy_synth_pu_workaround(dev, channel);
+
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL,
+ channel2freq_bg(channel));
+
+ if (channel == 14) {
+ if (dev->dev->bus->sprom.country_code == 5) /* JAPAN) */
+ b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
+ B43legacy_UCODEFLAGS_OFFSET,
+ b43legacy_shm_read32(dev,
+ B43legacy_SHM_SHARED,
+ B43legacy_UCODEFLAGS_OFFSET)
+ & ~(1 << 7));
+ else
+ b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
+ B43legacy_UCODEFLAGS_OFFSET,
+ b43legacy_shm_read32(dev,
+ B43legacy_SHM_SHARED,
+ B43legacy_UCODEFLAGS_OFFSET)
+ | (1 << 7));
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT,
+ b43legacy_read16(dev,
+ B43legacy_MMIO_CHANNEL_EXT) | (1 << 11));
+ } else
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT,
+ b43legacy_read16(dev,
+ B43legacy_MMIO_CHANNEL_EXT) & 0xF7BF);
+
+ phy->channel = channel;
+ /*XXX: Using the longer of 2 timeouts (8000 vs 2000 usecs). Specs states
+ * that 2000 usecs might suffice. */
+ msleep(8);
+
+ return 0;
+}
+
+void b43legacy_radio_set_txantenna(struct b43legacy_wldev *dev, u32 val)
+{
+ u16 tmp;
+
+ val <<= 8;
+ tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x0022) & 0xFCFF;
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0022, tmp | val);
+ tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x03A8) & 0xFCFF;
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x03A8, tmp | val);
+ tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x0054) & 0xFCFF;
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0054, tmp | val);
+}
+
+/* http://bcm-specs.sipsolutions.net/TX_Gain_Base_Band */
+static u16 b43legacy_get_txgain_base_band(u16 txpower)
+{
+ u16 ret;
+
+ B43legacy_WARN_ON(txpower > 63);
+
+ if (txpower >= 54)
+ ret = 2;
+ else if (txpower >= 49)
+ ret = 4;
+ else if (txpower >= 44)
+ ret = 5;
+ else
+ ret = 6;
+
+ return ret;
+}
+
+/* http://bcm-specs.sipsolutions.net/TX_Gain_Radio_Frequency_Power_Amplifier */
+static u16 b43legacy_get_txgain_freq_power_amp(u16 txpower)
+{
+ u16 ret;
+
+ B43legacy_WARN_ON(txpower > 63);
+
+ if (txpower >= 32)
+ ret = 0;
+ else if (txpower >= 25)
+ ret = 1;
+ else if (txpower >= 20)
+ ret = 2;
+ else if (txpower >= 12)
+ ret = 3;
+ else
+ ret = 4;
+
+ return ret;
+}
+
+/* http://bcm-specs.sipsolutions.net/TX_Gain_Digital_Analog_Converter */
+static u16 b43legacy_get_txgain_dac(u16 txpower)
+{
+ u16 ret;
+
+ B43legacy_WARN_ON(txpower > 63);
+
+ if (txpower >= 54)
+ ret = txpower - 53;
+ else if (txpower >= 49)
+ ret = txpower - 42;
+ else if (txpower >= 44)
+ ret = txpower - 37;
+ else if (txpower >= 32)
+ ret = txpower - 32;
+ else if (txpower >= 25)
+ ret = txpower - 20;
+ else if (txpower >= 20)
+ ret = txpower - 13;
+ else if (txpower >= 12)
+ ret = txpower - 8;
+ else
+ ret = txpower;
+
+ return ret;
+}
+
+void b43legacy_radio_set_txpower_a(struct b43legacy_wldev *dev, u16 txpower)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 pamp;
+ u16 base;
+ u16 dac;
+ u16 ilt;
+
+ txpower = clamp_val(txpower, 0, 63);
+
+ pamp = b43legacy_get_txgain_freq_power_amp(txpower);
+ pamp <<= 5;
+ pamp &= 0x00E0;
+ b43legacy_phy_write(dev, 0x0019, pamp);
+
+ base = b43legacy_get_txgain_base_band(txpower);
+ base &= 0x000F;
+ b43legacy_phy_write(dev, 0x0017, base | 0x0020);
+
+ ilt = b43legacy_ilt_read(dev, 0x3001);
+ ilt &= 0x0007;
+
+ dac = b43legacy_get_txgain_dac(txpower);
+ dac <<= 3;
+ dac |= ilt;
+
+ b43legacy_ilt_write(dev, 0x3001, dac);
+
+ phy->txpwr_offset = txpower;
+
+ /* TODO: FuncPlaceholder (Adjust BB loft cancel) */
+}
+
+void b43legacy_radio_set_txpower_bg(struct b43legacy_wldev *dev,
+ u16 baseband_attenuation,
+ u16 radio_attenuation,
+ u16 txpower)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+
+ if (baseband_attenuation == 0xFFFF)
+ baseband_attenuation = phy->bbatt;
+ if (radio_attenuation == 0xFFFF)
+ radio_attenuation = phy->rfatt;
+ if (txpower == 0xFFFF)
+ txpower = phy->txctl1;
+ phy->bbatt = baseband_attenuation;
+ phy->rfatt = radio_attenuation;
+ phy->txctl1 = txpower;
+
+ B43legacy_WARN_ON(baseband_attenuation > 11);
+ if (phy->radio_rev < 6)
+ B43legacy_WARN_ON(radio_attenuation > 9);
+ else
+ B43legacy_WARN_ON(radio_attenuation > 31);
+ B43legacy_WARN_ON(txpower > 7);
+
+ b43legacy_phy_set_baseband_attenuation(dev, baseband_attenuation);
+ b43legacy_radio_write16(dev, 0x0043, radio_attenuation);
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0064,
+ radio_attenuation);
+ if (phy->radio_ver == 0x2050)
+ b43legacy_radio_write16(dev, 0x0052,
+ (b43legacy_radio_read16(dev, 0x0052)
+ & ~0x0070) | ((txpower << 4) & 0x0070));
+ /* FIXME: The spec is very weird and unclear here. */
+ if (phy->type == B43legacy_PHYTYPE_G)
+ b43legacy_phy_lo_adjust(dev, 0);
+}
+
+u16 b43legacy_default_baseband_attenuation(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+
+ if (phy->radio_ver == 0x2050 && phy->radio_rev < 6)
+ return 0;
+ return 2;
+}
+
+u16 b43legacy_default_radio_attenuation(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 att = 0xFFFF;
+
+ switch (phy->radio_ver) {
+ case 0x2053:
+ switch (phy->radio_rev) {
+ case 1:
+ att = 6;
+ break;
+ }
+ break;
+ case 0x2050:
+ switch (phy->radio_rev) {
+ case 0:
+ att = 5;
+ break;
+ case 1:
+ if (phy->type == B43legacy_PHYTYPE_G) {
+ if (is_bcm_board_vendor(dev) &&
+ dev->dev->bus->boardinfo.type == 0x421 &&
+ dev->dev->bus->sprom.board_rev >= 30)
+ att = 3;
+ else if (is_bcm_board_vendor(dev) &&
+ dev->dev->bus->boardinfo.type == 0x416)
+ att = 3;
+ else
+ att = 1;
+ } else {
+ if (is_bcm_board_vendor(dev) &&
+ dev->dev->bus->boardinfo.type == 0x421 &&
+ dev->dev->bus->sprom.board_rev >= 30)
+ att = 7;
+ else
+ att = 6;
+ }
+ break;
+ case 2:
+ if (phy->type == B43legacy_PHYTYPE_G) {
+ if (is_bcm_board_vendor(dev) &&
+ dev->dev->bus->boardinfo.type == 0x421 &&
+ dev->dev->bus->sprom.board_rev >= 30)
+ att = 3;
+ else if (is_bcm_board_vendor(dev) &&
+ dev->dev->bus->boardinfo.type ==
+ 0x416)
+ att = 5;
+ else if (dev->dev->bus->chip_id == 0x4320)
+ att = 4;
+ else
+ att = 3;
+ } else
+ att = 6;
+ break;
+ case 3:
+ att = 5;
+ break;
+ case 4:
+ case 5:
+ att = 1;
+ break;
+ case 6:
+ case 7:
+ att = 5;
+ break;
+ case 8:
+ att = 0x1A;
+ break;
+ case 9:
+ default:
+ att = 5;
+ }
+ }
+ if (is_bcm_board_vendor(dev) &&
+ dev->dev->bus->boardinfo.type == 0x421) {
+ if (dev->dev->bus->sprom.board_rev < 0x43)
+ att = 2;
+ else if (dev->dev->bus->sprom.board_rev < 0x51)
+ att = 3;
+ }
+ if (att == 0xFFFF)
+ att = 5;
+
+ return att;
+}
+
+u16 b43legacy_default_txctl1(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+
+ if (phy->radio_ver != 0x2050)
+ return 0;
+ if (phy->radio_rev == 1)
+ return 3;
+ if (phy->radio_rev < 6)
+ return 2;
+ if (phy->radio_rev == 8)
+ return 1;
+ return 0;
+}
+
+void b43legacy_radio_turn_on(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ int err;
+ u8 channel;
+
+ might_sleep();
+
+ if (phy->radio_on)
+ return;
+
+ switch (phy->type) {
+ case B43legacy_PHYTYPE_B:
+ case B43legacy_PHYTYPE_G:
+ b43legacy_phy_write(dev, 0x0015, 0x8000);
+ b43legacy_phy_write(dev, 0x0015, 0xCC00);
+ b43legacy_phy_write(dev, 0x0015,
+ (phy->gmode ? 0x00C0 : 0x0000));
+ if (phy->radio_off_context.valid) {
+ /* Restore the RFover values. */
+ b43legacy_phy_write(dev, B43legacy_PHY_RFOVER,
+ phy->radio_off_context.rfover);
+ b43legacy_phy_write(dev, B43legacy_PHY_RFOVERVAL,
+ phy->radio_off_context.rfoverval);
+ phy->radio_off_context.valid = false;
+ }
+ channel = phy->channel;
+ err = b43legacy_radio_selectchannel(dev,
+ B43legacy_RADIO_DEFAULT_CHANNEL_BG, 1);
+ err |= b43legacy_radio_selectchannel(dev, channel, 0);
+ B43legacy_WARN_ON(err);
+ break;
+ default:
+ B43legacy_BUG_ON(1);
+ }
+ phy->radio_on = true;
+}
+
+void b43legacy_radio_turn_off(struct b43legacy_wldev *dev, bool force)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+
+ if (!phy->radio_on && !force)
+ return;
+
+ if (phy->type == B43legacy_PHYTYPE_G && dev->dev->id.revision >= 5) {
+ u16 rfover, rfoverval;
+
+ rfover = b43legacy_phy_read(dev, B43legacy_PHY_RFOVER);
+ rfoverval = b43legacy_phy_read(dev, B43legacy_PHY_RFOVERVAL);
+ if (!force) {
+ phy->radio_off_context.rfover = rfover;
+ phy->radio_off_context.rfoverval = rfoverval;
+ phy->radio_off_context.valid = true;
+ }
+ b43legacy_phy_write(dev, B43legacy_PHY_RFOVER, rfover | 0x008C);
+ b43legacy_phy_write(dev, B43legacy_PHY_RFOVERVAL,
+ rfoverval & 0xFF73);
+ } else
+ b43legacy_phy_write(dev, 0x0015, 0xAA00);
+ phy->radio_on = false;
+ b43legacydbg(dev->wl, "Radio initialized\n");
+}
+
+void b43legacy_radio_clear_tssi(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+
+ switch (phy->type) {
+ case B43legacy_PHYTYPE_B:
+ case B43legacy_PHYTYPE_G:
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0058,
+ 0x7F7F);
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x005a,
+ 0x7F7F);
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0070,
+ 0x7F7F);
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0072,
+ 0x7F7F);
+ break;
+ }
+}
--- /dev/null
+/*
+
+ Broadcom B43legacy wireless driver
+
+ Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
+ Stefano Brivio <stefano.brivio@polimi.it>
+ Michael Buesch <m@bues.ch>
+ Danny van Dyk <kugelfang@gentoo.org>
+ Andreas Jaggi <andreas.jaggi@waterwave.ch>
+
+ Some parts of the code in this file are derived from the ipw2200
+ driver Copyright(c) 2003 - 2004 Intel Corporation.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+
+*/
+
+#ifndef B43legacy_RADIO_H_
+#define B43legacy_RADIO_H_
+
+#include "b43legacy.h"
+
+
+#define B43legacy_RADIO_DEFAULT_CHANNEL_BG 6
+
+/* Force antenna 0. */
+#define B43legacy_RADIO_TXANTENNA_0 0
+/* Force antenna 1. */
+#define B43legacy_RADIO_TXANTENNA_1 1
+/* Use the RX antenna, that was selected for the most recently
+ * received good PLCP header.
+ */
+#define B43legacy_RADIO_TXANTENNA_LASTPLCP 3
+#define B43legacy_RADIO_TXANTENNA_DEFAULT B43legacy_RADIO_TXANTENNA_LASTPLCP
+
+#define B43legacy_RADIO_INTERFMODE_NONE 0
+#define B43legacy_RADIO_INTERFMODE_NONWLAN 1
+#define B43legacy_RADIO_INTERFMODE_MANUALWLAN 2
+#define B43legacy_RADIO_INTERFMODE_AUTOWLAN 3
+
+
+void b43legacy_radio_lock(struct b43legacy_wldev *dev);
+void b43legacy_radio_unlock(struct b43legacy_wldev *dev);
+
+u16 b43legacy_radio_read16(struct b43legacy_wldev *dev, u16 offset);
+void b43legacy_radio_write16(struct b43legacy_wldev *dev, u16 offset, u16 val);
+
+u16 b43legacy_radio_init2050(struct b43legacy_wldev *dev);
+
+void b43legacy_radio_turn_on(struct b43legacy_wldev *dev);
+void b43legacy_radio_turn_off(struct b43legacy_wldev *dev, bool force);
+
+int b43legacy_radio_selectchannel(struct b43legacy_wldev *dev, u8 channel,
+ int synthetic_pu_workaround);
+
+void b43legacy_radio_set_txpower_a(struct b43legacy_wldev *dev, u16 txpower);
+void b43legacy_radio_set_txpower_bg(struct b43legacy_wldev *dev,
+ u16 baseband_attenuation, u16 attenuation,
+ u16 txpower);
+
+u16 b43legacy_default_baseband_attenuation(struct b43legacy_wldev *dev);
+u16 b43legacy_default_radio_attenuation(struct b43legacy_wldev *dev);
+u16 b43legacy_default_txctl1(struct b43legacy_wldev *dev);
+
+void b43legacy_radio_set_txantenna(struct b43legacy_wldev *dev, u32 val);
+
+void b43legacy_radio_clear_tssi(struct b43legacy_wldev *dev);
+
+u8 b43legacy_radio_aci_detect(struct b43legacy_wldev *dev, u8 channel);
+u8 b43legacy_radio_aci_scan(struct b43legacy_wldev *dev);
+
+int b43legacy_radio_set_interference_mitigation(struct b43legacy_wldev *dev,
+ int mode);
+
+void b43legacy_calc_nrssi_slope(struct b43legacy_wldev *dev);
+void b43legacy_calc_nrssi_threshold(struct b43legacy_wldev *dev);
+s16 b43legacy_nrssi_hw_read(struct b43legacy_wldev *dev, u16 offset);
+void b43legacy_nrssi_hw_write(struct b43legacy_wldev *dev, u16 offset, s16 val);
+void b43legacy_nrssi_hw_update(struct b43legacy_wldev *dev, u16 val);
+void b43legacy_nrssi_mem_update(struct b43legacy_wldev *dev);
+
+u16 b43legacy_radio_calibrationvalue(struct b43legacy_wldev *dev);
+
+#endif /* B43legacy_RADIO_H_ */
--- /dev/null
+/*
+
+ Broadcom B43 wireless driver
+ RFKILL support
+
+ Copyright (c) 2007 Michael Buesch <m@bues.ch>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+
+*/
+
+#include "radio.h"
+#include "b43legacy.h"
+
+
+/* Returns TRUE, if the radio is enabled in hardware. */
+bool b43legacy_is_hw_radio_enabled(struct b43legacy_wldev *dev)
+{
+ if (dev->dev->id.revision >= 3) {
+ if (!(b43legacy_read32(dev, B43legacy_MMIO_RADIO_HWENABLED_HI)
+ & B43legacy_MMIO_RADIO_HWENABLED_HI_MASK))
+ return true;
+ } else {
+ /* To prevent CPU fault on PPC, do not read a register
+ * unless the interface is started; however, on resume
+ * for hibernation, this routine is entered early. When
+ * that happens, unconditionally return TRUE.
+ */
+ if (b43legacy_status(dev) < B43legacy_STAT_STARTED)
+ return true;
+ if (b43legacy_read16(dev, B43legacy_MMIO_RADIO_HWENABLED_LO)
+ & B43legacy_MMIO_RADIO_HWENABLED_LO_MASK)
+ return true;
+ }
+ return false;
+}
+
+/* The poll callback for the hardware button. */
+void b43legacy_rfkill_poll(struct ieee80211_hw *hw)
+{
+ struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
+ struct b43legacy_wldev *dev = wl->current_dev;
+ struct ssb_bus *bus = dev->dev->bus;
+ bool enabled;
+ bool brought_up = false;
+
+ mutex_lock(&wl->mutex);
+ if (unlikely(b43legacy_status(dev) < B43legacy_STAT_INITIALIZED)) {
+ if (ssb_bus_powerup(bus, 0)) {
+ mutex_unlock(&wl->mutex);
+ return;
+ }
+ ssb_device_enable(dev->dev, 0);
+ brought_up = true;
+ }
+
+ enabled = b43legacy_is_hw_radio_enabled(dev);
+
+ if (unlikely(enabled != dev->radio_hw_enable)) {
+ dev->radio_hw_enable = enabled;
+ b43legacyinfo(wl, "Radio hardware status changed to %s\n",
+ enabled ? "ENABLED" : "DISABLED");
+ wiphy_rfkill_set_hw_state(hw->wiphy, !enabled);
+ if (enabled != dev->phy.radio_on) {
+ if (enabled)
+ b43legacy_radio_turn_on(dev);
+ else
+ b43legacy_radio_turn_off(dev, 0);
+ }
+ }
+
+ if (brought_up) {
+ ssb_device_disable(dev->dev, 0);
+ ssb_bus_may_powerdown(bus);
+ }
+
+ mutex_unlock(&wl->mutex);
+}
--- /dev/null
+#ifndef B43legacy_RFKILL_H_
+#define B43legacy_RFKILL_H_
+
+struct ieee80211_hw;
+struct b43legacy_wldev;
+
+void b43legacy_rfkill_poll(struct ieee80211_hw *hw);
+
+bool b43legacy_is_hw_radio_enabled(struct b43legacy_wldev *dev);
+
+#endif /* B43legacy_RFKILL_H_ */
--- /dev/null
+/*
+
+ Broadcom B43legacy wireless driver
+
+ SYSFS support routines
+
+ Copyright (c) 2006 Michael Buesch <m@bues.ch>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+
+*/
+
+#include "sysfs.h"
+#include "b43legacy.h"
+#include "main.h"
+#include "phy.h"
+#include "radio.h"
+
+#include <linux/capability.h>
+
+
+#define GENERIC_FILESIZE 64
+
+
+static int get_integer(const char *buf, size_t count)
+{
+ char tmp[10 + 1] = { 0 };
+ int ret = -EINVAL;
+
+ if (count == 0)
+ goto out;
+ count = min_t(size_t, count, 10);
+ memcpy(tmp, buf, count);
+ ret = simple_strtol(tmp, NULL, 10);
+out:
+ return ret;
+}
+
+static int get_boolean(const char *buf, size_t count)
+{
+ if (count != 0) {
+ if (buf[0] == '1')
+ return 1;
+ if (buf[0] == '0')
+ return 0;
+ if (count >= 4 && memcmp(buf, "true", 4) == 0)
+ return 1;
+ if (count >= 5 && memcmp(buf, "false", 5) == 0)
+ return 0;
+ if (count >= 3 && memcmp(buf, "yes", 3) == 0)
+ return 1;
+ if (count >= 2 && memcmp(buf, "no", 2) == 0)
+ return 0;
+ if (count >= 2 && memcmp(buf, "on", 2) == 0)
+ return 1;
+ if (count >= 3 && memcmp(buf, "off", 3) == 0)
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static ssize_t b43legacy_attr_interfmode_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct b43legacy_wldev *wldev = dev_to_b43legacy_wldev(dev);
+ ssize_t count = 0;
+
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
+ mutex_lock(&wldev->wl->mutex);
+
+ switch (wldev->phy.interfmode) {
+ case B43legacy_INTERFMODE_NONE:
+ count = snprintf(buf, PAGE_SIZE, "0 (No Interference"
+ " Mitigation)\n");
+ break;
+ case B43legacy_INTERFMODE_NONWLAN:
+ count = snprintf(buf, PAGE_SIZE, "1 (Non-WLAN Interference"
+ " Mitigation)\n");
+ break;
+ case B43legacy_INTERFMODE_MANUALWLAN:
+ count = snprintf(buf, PAGE_SIZE, "2 (WLAN Interference"
+ " Mitigation)\n");
+ break;
+ default:
+ B43legacy_WARN_ON(1);
+ }
+
+ mutex_unlock(&wldev->wl->mutex);
+
+ return count;
+}
+
+static ssize_t b43legacy_attr_interfmode_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct b43legacy_wldev *wldev = dev_to_b43legacy_wldev(dev);
+ unsigned long flags;
+ int err;
+ int mode;
+
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
+ mode = get_integer(buf, count);
+ switch (mode) {
+ case 0:
+ mode = B43legacy_INTERFMODE_NONE;
+ break;
+ case 1:
+ mode = B43legacy_INTERFMODE_NONWLAN;
+ break;
+ case 2:
+ mode = B43legacy_INTERFMODE_MANUALWLAN;
+ break;
+ case 3:
+ mode = B43legacy_INTERFMODE_AUTOWLAN;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ mutex_lock(&wldev->wl->mutex);
+ spin_lock_irqsave(&wldev->wl->irq_lock, flags);
+
+ err = b43legacy_radio_set_interference_mitigation(wldev, mode);
+ if (err)
+ b43legacyerr(wldev->wl, "Interference Mitigation not "
+ "supported by device\n");
+ mmiowb();
+ spin_unlock_irqrestore(&wldev->wl->irq_lock, flags);
+ mutex_unlock(&wldev->wl->mutex);
+
+ return err ? err : count;
+}
+
+static DEVICE_ATTR(interference, 0644,
+ b43legacy_attr_interfmode_show,
+ b43legacy_attr_interfmode_store);
+
+static ssize_t b43legacy_attr_preamble_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct b43legacy_wldev *wldev = dev_to_b43legacy_wldev(dev);
+ ssize_t count;
+
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
+ mutex_lock(&wldev->wl->mutex);
+
+ if (wldev->short_preamble)
+ count = snprintf(buf, PAGE_SIZE, "1 (Short Preamble"
+ " enabled)\n");
+ else
+ count = snprintf(buf, PAGE_SIZE, "0 (Short Preamble"
+ " disabled)\n");
+
+ mutex_unlock(&wldev->wl->mutex);
+
+ return count;
+}
+
+static ssize_t b43legacy_attr_preamble_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct b43legacy_wldev *wldev = dev_to_b43legacy_wldev(dev);
+ unsigned long flags;
+ int value;
+
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
+ value = get_boolean(buf, count);
+ if (value < 0)
+ return value;
+ mutex_lock(&wldev->wl->mutex);
+ spin_lock_irqsave(&wldev->wl->irq_lock, flags);
+
+ wldev->short_preamble = !!value;
+
+ spin_unlock_irqrestore(&wldev->wl->irq_lock, flags);
+ mutex_unlock(&wldev->wl->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(shortpreamble, 0644,
+ b43legacy_attr_preamble_show,
+ b43legacy_attr_preamble_store);
+
+int b43legacy_sysfs_register(struct b43legacy_wldev *wldev)
+{
+ struct device *dev = wldev->dev->dev;
+ int err;
+
+ B43legacy_WARN_ON(b43legacy_status(wldev) !=
+ B43legacy_STAT_INITIALIZED);
+
+ err = device_create_file(dev, &dev_attr_interference);
+ if (err)
+ goto out;
+ err = device_create_file(dev, &dev_attr_shortpreamble);
+ if (err)
+ goto err_remove_interfmode;
+
+out:
+ return err;
+err_remove_interfmode:
+ device_remove_file(dev, &dev_attr_interference);
+ goto out;
+}
+
+void b43legacy_sysfs_unregister(struct b43legacy_wldev *wldev)
+{
+ struct device *dev = wldev->dev->dev;
+
+ device_remove_file(dev, &dev_attr_shortpreamble);
+ device_remove_file(dev, &dev_attr_interference);
+}
--- /dev/null
+#ifndef B43legacy_SYSFS_H_
+#define B43legacy_SYSFS_H_
+
+struct b43legacy_wldev;
+
+int b43legacy_sysfs_register(struct b43legacy_wldev *dev);
+void b43legacy_sysfs_unregister(struct b43legacy_wldev *dev);
+
+#endif /* B43legacy_SYSFS_H_ */
--- /dev/null
+/*
+
+ Broadcom B43legacy wireless driver
+
+ Transmission (TX/RX) related functions.
+
+ Copyright (C) 2005 Martin Langer <martin-langer@gmx.de>
+ Copyright (C) 2005 Stefano Brivio <stefano.brivio@polimi.it>
+ Copyright (C) 2005, 2006 Michael Buesch <m@bues.ch>
+ Copyright (C) 2005 Danny van Dyk <kugelfang@gentoo.org>
+ Copyright (C) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
+ Copyright (C) 2007 Larry Finger <Larry.Finger@lwfinger.net>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+
+*/
+
+#include <net/dst.h>
+
+#include "xmit.h"
+#include "phy.h"
+#include "dma.h"
+#include "pio.h"
+
+
+/* Extract the bitrate out of a CCK PLCP header. */
+static u8 b43legacy_plcp_get_bitrate_idx_cck(struct b43legacy_plcp_hdr6 *plcp)
+{
+ switch (plcp->raw[0]) {
+ case 0x0A:
+ return 0;
+ case 0x14:
+ return 1;
+ case 0x37:
+ return 2;
+ case 0x6E:
+ return 3;
+ }
+ B43legacy_BUG_ON(1);
+ return -1;
+}
+
+/* Extract the bitrate out of an OFDM PLCP header. */
+static u8 b43legacy_plcp_get_bitrate_idx_ofdm(struct b43legacy_plcp_hdr6 *plcp,
+ bool aphy)
+{
+ int base = aphy ? 0 : 4;
+
+ switch (plcp->raw[0] & 0xF) {
+ case 0xB:
+ return base + 0;
+ case 0xF:
+ return base + 1;
+ case 0xA:
+ return base + 2;
+ case 0xE:
+ return base + 3;
+ case 0x9:
+ return base + 4;
+ case 0xD:
+ return base + 5;
+ case 0x8:
+ return base + 6;
+ case 0xC:
+ return base + 7;
+ }
+ B43legacy_BUG_ON(1);
+ return -1;
+}
+
+u8 b43legacy_plcp_get_ratecode_cck(const u8 bitrate)
+{
+ switch (bitrate) {
+ case B43legacy_CCK_RATE_1MB:
+ return 0x0A;
+ case B43legacy_CCK_RATE_2MB:
+ return 0x14;
+ case B43legacy_CCK_RATE_5MB:
+ return 0x37;
+ case B43legacy_CCK_RATE_11MB:
+ return 0x6E;
+ }
+ B43legacy_BUG_ON(1);
+ return 0;
+}
+
+u8 b43legacy_plcp_get_ratecode_ofdm(const u8 bitrate)
+{
+ switch (bitrate) {
+ case B43legacy_OFDM_RATE_6MB:
+ return 0xB;
+ case B43legacy_OFDM_RATE_9MB:
+ return 0xF;
+ case B43legacy_OFDM_RATE_12MB:
+ return 0xA;
+ case B43legacy_OFDM_RATE_18MB:
+ return 0xE;
+ case B43legacy_OFDM_RATE_24MB:
+ return 0x9;
+ case B43legacy_OFDM_RATE_36MB:
+ return 0xD;
+ case B43legacy_OFDM_RATE_48MB:
+ return 0x8;
+ case B43legacy_OFDM_RATE_54MB:
+ return 0xC;
+ }
+ B43legacy_BUG_ON(1);
+ return 0;
+}
+
+void b43legacy_generate_plcp_hdr(struct b43legacy_plcp_hdr4 *plcp,
+ const u16 octets, const u8 bitrate)
+{
+ __le32 *data = &(plcp->data);
+ __u8 *raw = plcp->raw;
+
+ if (b43legacy_is_ofdm_rate(bitrate)) {
+ u16 d;
+
+ d = b43legacy_plcp_get_ratecode_ofdm(bitrate);
+ B43legacy_WARN_ON(octets & 0xF000);
+ d |= (octets << 5);
+ *data = cpu_to_le32(d);
+ } else {
+ u32 plen;
+
+ plen = octets * 16 / bitrate;
+ if ((octets * 16 % bitrate) > 0) {
+ plen++;
+ if ((bitrate == B43legacy_CCK_RATE_11MB)
+ && ((octets * 8 % 11) < 4))
+ raw[1] = 0x84;
+ else
+ raw[1] = 0x04;
+ } else
+ raw[1] = 0x04;
+ *data |= cpu_to_le32(plen << 16);
+ raw[0] = b43legacy_plcp_get_ratecode_cck(bitrate);
+ }
+}
+
+static u8 b43legacy_calc_fallback_rate(u8 bitrate)
+{
+ switch (bitrate) {
+ case B43legacy_CCK_RATE_1MB:
+ return B43legacy_CCK_RATE_1MB;
+ case B43legacy_CCK_RATE_2MB:
+ return B43legacy_CCK_RATE_1MB;
+ case B43legacy_CCK_RATE_5MB:
+ return B43legacy_CCK_RATE_2MB;
+ case B43legacy_CCK_RATE_11MB:
+ return B43legacy_CCK_RATE_5MB;
+ case B43legacy_OFDM_RATE_6MB:
+ return B43legacy_CCK_RATE_5MB;
+ case B43legacy_OFDM_RATE_9MB:
+ return B43legacy_OFDM_RATE_6MB;
+ case B43legacy_OFDM_RATE_12MB:
+ return B43legacy_OFDM_RATE_9MB;
+ case B43legacy_OFDM_RATE_18MB:
+ return B43legacy_OFDM_RATE_12MB;
+ case B43legacy_OFDM_RATE_24MB:
+ return B43legacy_OFDM_RATE_18MB;
+ case B43legacy_OFDM_RATE_36MB:
+ return B43legacy_OFDM_RATE_24MB;
+ case B43legacy_OFDM_RATE_48MB:
+ return B43legacy_OFDM_RATE_36MB;
+ case B43legacy_OFDM_RATE_54MB:
+ return B43legacy_OFDM_RATE_48MB;
+ }
+ B43legacy_BUG_ON(1);
+ return 0;
+}
+
+static int generate_txhdr_fw3(struct b43legacy_wldev *dev,
+ struct b43legacy_txhdr_fw3 *txhdr,
+ const unsigned char *fragment_data,
+ unsigned int fragment_len,
+ struct ieee80211_tx_info *info,
+ u16 cookie)
+{
+ const struct ieee80211_hdr *wlhdr;
+ int use_encryption = !!info->control.hw_key;
+ u8 rate;
+ struct ieee80211_rate *rate_fb;
+ int rate_ofdm;
+ int rate_fb_ofdm;
+ unsigned int plcp_fragment_len;
+ u32 mac_ctl = 0;
+ u16 phy_ctl = 0;
+ struct ieee80211_rate *tx_rate;
+ struct ieee80211_tx_rate *rates;
+
+ wlhdr = (const struct ieee80211_hdr *)fragment_data;
+
+ memset(txhdr, 0, sizeof(*txhdr));
+
+ tx_rate = ieee80211_get_tx_rate(dev->wl->hw, info);
+
+ rate = tx_rate->hw_value;
+ rate_ofdm = b43legacy_is_ofdm_rate(rate);
+ rate_fb = ieee80211_get_alt_retry_rate(dev->wl->hw, info, 0) ? : tx_rate;
+ rate_fb_ofdm = b43legacy_is_ofdm_rate(rate_fb->hw_value);
+
+ txhdr->mac_frame_ctl = wlhdr->frame_control;
+ memcpy(txhdr->tx_receiver, wlhdr->addr1, ETH_ALEN);
+
+ /* Calculate duration for fallback rate */
+ if ((rate_fb->hw_value == rate) ||
+ (wlhdr->duration_id & cpu_to_le16(0x8000)) ||
+ (wlhdr->duration_id == cpu_to_le16(0))) {
+ /* If the fallback rate equals the normal rate or the
+ * dur_id field contains an AID, CFP magic or 0,
+ * use the original dur_id field. */
+ txhdr->dur_fb = wlhdr->duration_id;
+ } else {
+ txhdr->dur_fb = ieee80211_generic_frame_duration(dev->wl->hw,
+ info->control.vif,
+ info->band,
+ fragment_len,
+ rate_fb);
+ }
+
+ plcp_fragment_len = fragment_len + FCS_LEN;
+ if (use_encryption) {
+ u8 key_idx = info->control.hw_key->hw_key_idx;
+ struct b43legacy_key *key;
+ int wlhdr_len;
+ size_t iv_len;
+
+ B43legacy_WARN_ON(key_idx >= dev->max_nr_keys);
+ key = &(dev->key[key_idx]);
+
+ if (key->enabled) {
+ /* Hardware appends ICV. */
+ plcp_fragment_len += info->control.hw_key->icv_len;
+
+ key_idx = b43legacy_kidx_to_fw(dev, key_idx);
+ mac_ctl |= (key_idx << B43legacy_TX4_MAC_KEYIDX_SHIFT) &
+ B43legacy_TX4_MAC_KEYIDX;
+ mac_ctl |= (key->algorithm <<
+ B43legacy_TX4_MAC_KEYALG_SHIFT) &
+ B43legacy_TX4_MAC_KEYALG;
+ wlhdr_len = ieee80211_hdrlen(wlhdr->frame_control);
+ iv_len = min_t(size_t, info->control.hw_key->iv_len,
+ ARRAY_SIZE(txhdr->iv));
+ memcpy(txhdr->iv, ((u8 *)wlhdr) + wlhdr_len, iv_len);
+ } else {
+ /* This key is invalid. This might only happen
+ * in a short timeframe after machine resume before
+ * we were able to reconfigure keys.
+ * Drop this packet completely. Do not transmit it
+ * unencrypted to avoid leaking information. */
+ return -ENOKEY;
+ }
+ }
+ b43legacy_generate_plcp_hdr((struct b43legacy_plcp_hdr4 *)
+ (&txhdr->plcp), plcp_fragment_len,
+ rate);
+ b43legacy_generate_plcp_hdr(&txhdr->plcp_fb, plcp_fragment_len,
+ rate_fb->hw_value);
+
+ /* PHY TX Control word */
+ if (rate_ofdm)
+ phy_ctl |= B43legacy_TX4_PHY_ENC_OFDM;
+ if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
+ phy_ctl |= B43legacy_TX4_PHY_SHORTPRMBL;
+ phy_ctl |= B43legacy_TX4_PHY_ANTLAST;
+
+ /* MAC control */
+ rates = info->control.rates;
+ if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
+ mac_ctl |= B43legacy_TX4_MAC_ACK;
+ if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ)
+ mac_ctl |= B43legacy_TX4_MAC_HWSEQ;
+ if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
+ mac_ctl |= B43legacy_TX4_MAC_STMSDU;
+ if (rate_fb_ofdm)
+ mac_ctl |= B43legacy_TX4_MAC_FALLBACKOFDM;
+
+ /* Overwrite rates[0].count to make the retry calculation
+ * in the tx status easier. need the actual retry limit to
+ * detect whether the fallback rate was used.
+ */
+ if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) ||
+ (rates[0].count <= dev->wl->hw->conf.long_frame_max_tx_count)) {
+ rates[0].count = dev->wl->hw->conf.long_frame_max_tx_count;
+ mac_ctl |= B43legacy_TX4_MAC_LONGFRAME;
+ } else {
+ rates[0].count = dev->wl->hw->conf.short_frame_max_tx_count;
+ }
+
+ /* Generate the RTS or CTS-to-self frame */
+ if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) ||
+ (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)) {
+ unsigned int len;
+ struct ieee80211_hdr *hdr;
+ int rts_rate;
+ int rts_rate_fb;
+ int rts_rate_fb_ofdm;
+
+ rts_rate = ieee80211_get_rts_cts_rate(dev->wl->hw, info)->hw_value;
+ rts_rate_fb = b43legacy_calc_fallback_rate(rts_rate);
+ rts_rate_fb_ofdm = b43legacy_is_ofdm_rate(rts_rate_fb);
+ if (rts_rate_fb_ofdm)
+ mac_ctl |= B43legacy_TX4_MAC_CTSFALLBACKOFDM;
+
+ if (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
+ ieee80211_ctstoself_get(dev->wl->hw,
+ info->control.vif,
+ fragment_data,
+ fragment_len, info,
+ (struct ieee80211_cts *)
+ (txhdr->rts_frame));
+ mac_ctl |= B43legacy_TX4_MAC_SENDCTS;
+ len = sizeof(struct ieee80211_cts);
+ } else {
+ ieee80211_rts_get(dev->wl->hw,
+ info->control.vif,
+ fragment_data, fragment_len, info,
+ (struct ieee80211_rts *)
+ (txhdr->rts_frame));
+ mac_ctl |= B43legacy_TX4_MAC_SENDRTS;
+ len = sizeof(struct ieee80211_rts);
+ }
+ len += FCS_LEN;
+ b43legacy_generate_plcp_hdr((struct b43legacy_plcp_hdr4 *)
+ (&txhdr->rts_plcp),
+ len, rts_rate);
+ b43legacy_generate_plcp_hdr(&txhdr->rts_plcp_fb,
+ len, rts_rate_fb);
+ hdr = (struct ieee80211_hdr *)(&txhdr->rts_frame);
+ txhdr->rts_dur_fb = hdr->duration_id;
+ }
+
+ /* Magic cookie */
+ txhdr->cookie = cpu_to_le16(cookie);
+
+ /* Apply the bitfields */
+ txhdr->mac_ctl = cpu_to_le32(mac_ctl);
+ txhdr->phy_ctl = cpu_to_le16(phy_ctl);
+
+ return 0;
+}
+
+int b43legacy_generate_txhdr(struct b43legacy_wldev *dev,
+ u8 *txhdr,
+ const unsigned char *fragment_data,
+ unsigned int fragment_len,
+ struct ieee80211_tx_info *info,
+ u16 cookie)
+{
+ return generate_txhdr_fw3(dev, (struct b43legacy_txhdr_fw3 *)txhdr,
+ fragment_data, fragment_len,
+ info, cookie);
+}
+
+static s8 b43legacy_rssi_postprocess(struct b43legacy_wldev *dev,
+ u8 in_rssi, int ofdm,
+ int adjust_2053, int adjust_2050)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ s32 tmp;
+
+ switch (phy->radio_ver) {
+ case 0x2050:
+ if (ofdm) {
+ tmp = in_rssi;
+ if (tmp > 127)
+ tmp -= 256;
+ tmp *= 73;
+ tmp /= 64;
+ if (adjust_2050)
+ tmp += 25;
+ else
+ tmp -= 3;
+ } else {
+ if (dev->dev->bus->sprom.boardflags_lo
+ & B43legacy_BFL_RSSI) {
+ if (in_rssi > 63)
+ in_rssi = 63;
+ tmp = phy->nrssi_lt[in_rssi];
+ tmp = 31 - tmp;
+ tmp *= -131;
+ tmp /= 128;
+ tmp -= 57;
+ } else {
+ tmp = in_rssi;
+ tmp = 31 - tmp;
+ tmp *= -149;
+ tmp /= 128;
+ tmp -= 68;
+ }
+ if (phy->type == B43legacy_PHYTYPE_G &&
+ adjust_2050)
+ tmp += 25;
+ }
+ break;
+ case 0x2060:
+ if (in_rssi > 127)
+ tmp = in_rssi - 256;
+ else
+ tmp = in_rssi;
+ break;
+ default:
+ tmp = in_rssi;
+ tmp -= 11;
+ tmp *= 103;
+ tmp /= 64;
+ if (adjust_2053)
+ tmp -= 109;
+ else
+ tmp -= 83;
+ }
+
+ return (s8)tmp;
+}
+
+void b43legacy_rx(struct b43legacy_wldev *dev,
+ struct sk_buff *skb,
+ const void *_rxhdr)
+{
+ struct ieee80211_rx_status status;
+ struct b43legacy_plcp_hdr6 *plcp;
+ struct ieee80211_hdr *wlhdr;
+ const struct b43legacy_rxhdr_fw3 *rxhdr = _rxhdr;
+ __le16 fctl;
+ u16 phystat0;
+ u16 phystat3;
+ u16 chanstat;
+ u16 mactime;
+ u32 macstat;
+ u16 chanid;
+ u8 jssi;
+ int padding;
+
+ memset(&status, 0, sizeof(status));
+
+ /* Get metadata about the frame from the header. */
+ phystat0 = le16_to_cpu(rxhdr->phy_status0);
+ phystat3 = le16_to_cpu(rxhdr->phy_status3);
+ jssi = rxhdr->jssi;
+ macstat = le16_to_cpu(rxhdr->mac_status);
+ mactime = le16_to_cpu(rxhdr->mac_time);
+ chanstat = le16_to_cpu(rxhdr->channel);
+
+ if (macstat & B43legacy_RX_MAC_FCSERR)
+ dev->wl->ieee_stats.dot11FCSErrorCount++;
+
+ /* Skip PLCP and padding */
+ padding = (macstat & B43legacy_RX_MAC_PADDING) ? 2 : 0;
+ if (unlikely(skb->len < (sizeof(struct b43legacy_plcp_hdr6) +
+ padding))) {
+ b43legacydbg(dev->wl, "RX: Packet size underrun (1)\n");
+ goto drop;
+ }
+ plcp = (struct b43legacy_plcp_hdr6 *)(skb->data + padding);
+ skb_pull(skb, sizeof(struct b43legacy_plcp_hdr6) + padding);
+ /* The skb contains the Wireless Header + payload data now */
+ if (unlikely(skb->len < (2+2+6/*minimum hdr*/ + FCS_LEN))) {
+ b43legacydbg(dev->wl, "RX: Packet size underrun (2)\n");
+ goto drop;
+ }
+ wlhdr = (struct ieee80211_hdr *)(skb->data);
+ fctl = wlhdr->frame_control;
+
+ if ((macstat & B43legacy_RX_MAC_DEC) &&
+ !(macstat & B43legacy_RX_MAC_DECERR)) {
+ unsigned int keyidx;
+ int wlhdr_len;
+ int iv_len;
+ int icv_len;
+
+ keyidx = ((macstat & B43legacy_RX_MAC_KEYIDX)
+ >> B43legacy_RX_MAC_KEYIDX_SHIFT);
+ /* We must adjust the key index here. We want the "physical"
+ * key index, but the ucode passed it slightly different.
+ */
+ keyidx = b43legacy_kidx_to_raw(dev, keyidx);
+ B43legacy_WARN_ON(keyidx >= dev->max_nr_keys);
+
+ if (dev->key[keyidx].algorithm != B43legacy_SEC_ALGO_NONE) {
+ /* Remove PROTECTED flag to mark it as decrypted. */
+ B43legacy_WARN_ON(!ieee80211_has_protected(fctl));
+ fctl &= ~cpu_to_le16(IEEE80211_FCTL_PROTECTED);
+ wlhdr->frame_control = fctl;
+
+ wlhdr_len = ieee80211_hdrlen(fctl);
+ if (unlikely(skb->len < (wlhdr_len + 3))) {
+ b43legacydbg(dev->wl, "RX: Packet size"
+ " underrun3\n");
+ goto drop;
+ }
+ if (skb->data[wlhdr_len + 3] & (1 << 5)) {
+ /* The Ext-IV Bit is set in the "KeyID"
+ * octet of the IV.
+ */
+ iv_len = 8;
+ icv_len = 8;
+ } else {
+ iv_len = 4;
+ icv_len = 4;
+ }
+ if (unlikely(skb->len < (wlhdr_len + iv_len +
+ icv_len))) {
+ b43legacydbg(dev->wl, "RX: Packet size"
+ " underrun4\n");
+ goto drop;
+ }
+ /* Remove the IV */
+ memmove(skb->data + iv_len, skb->data, wlhdr_len);
+ skb_pull(skb, iv_len);
+ /* Remove the ICV */
+ skb_trim(skb, skb->len - icv_len);
+
+ status.flag |= RX_FLAG_DECRYPTED;
+ }
+ }
+
+ status.signal = b43legacy_rssi_postprocess(dev, jssi,
+ (phystat0 & B43legacy_RX_PHYST0_OFDM),
+ (phystat0 & B43legacy_RX_PHYST0_GAINCTL),
+ (phystat3 & B43legacy_RX_PHYST3_TRSTATE));
+ /* change to support A PHY */
+ if (phystat0 & B43legacy_RX_PHYST0_OFDM)
+ status.rate_idx = b43legacy_plcp_get_bitrate_idx_ofdm(plcp, false);
+ else
+ status.rate_idx = b43legacy_plcp_get_bitrate_idx_cck(plcp);
+ status.antenna = !!(phystat0 & B43legacy_RX_PHYST0_ANT);
+
+ /*
+ * All frames on monitor interfaces and beacons always need a full
+ * 64-bit timestamp. Monitor interfaces need it for diagnostic
+ * purposes and beacons for IBSS merging.
+ * This code assumes we get to process the packet within 16 bits
+ * of timestamp, i.e. about 65 milliseconds after the PHY received
+ * the first symbol.
+ */
+ if (ieee80211_is_beacon(fctl) || dev->wl->radiotap_enabled) {
+ u16 low_mactime_now;
+
+ b43legacy_tsf_read(dev, &status.mactime);
+ low_mactime_now = status.mactime;
+ status.mactime = status.mactime & ~0xFFFFULL;
+ status.mactime += mactime;
+ if (low_mactime_now <= mactime)
+ status.mactime -= 0x10000;
+ status.flag |= RX_FLAG_MACTIME_START;
+ }
+
+ chanid = (chanstat & B43legacy_RX_CHAN_ID) >>
+ B43legacy_RX_CHAN_ID_SHIFT;
+ switch (chanstat & B43legacy_RX_CHAN_PHYTYPE) {
+ case B43legacy_PHYTYPE_B:
+ case B43legacy_PHYTYPE_G:
+ status.band = IEEE80211_BAND_2GHZ;
+ status.freq = chanid + 2400;
+ break;
+ default:
+ b43legacywarn(dev->wl, "Unexpected value for chanstat (0x%X)\n",
+ chanstat);
+ }
+
+ memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status));
+ ieee80211_rx_irqsafe(dev->wl->hw, skb);
+
+ return;
+drop:
+ b43legacydbg(dev->wl, "RX: Packet dropped\n");
+ dev_kfree_skb_any(skb);
+}
+
+void b43legacy_handle_txstatus(struct b43legacy_wldev *dev,
+ const struct b43legacy_txstatus *status)
+{
+ b43legacy_debugfs_log_txstat(dev, status);
+
+ if (status->intermediate)
+ return;
+ if (status->for_ampdu)
+ return;
+ if (!status->acked)
+ dev->wl->ieee_stats.dot11ACKFailureCount++;
+ if (status->rts_count) {
+ if (status->rts_count == 0xF) /* FIXME */
+ dev->wl->ieee_stats.dot11RTSFailureCount++;
+ else
+ dev->wl->ieee_stats.dot11RTSSuccessCount++;
+ }
+
+ if (b43legacy_using_pio(dev))
+ b43legacy_pio_handle_txstatus(dev, status);
+ else
+ b43legacy_dma_handle_txstatus(dev, status);
+}
+
+/* Handle TX status report as received through DMA/PIO queues */
+void b43legacy_handle_hwtxstatus(struct b43legacy_wldev *dev,
+ const struct b43legacy_hwtxstatus *hw)
+{
+ struct b43legacy_txstatus status;
+ u8 tmp;
+
+ status.cookie = le16_to_cpu(hw->cookie);
+ status.seq = le16_to_cpu(hw->seq);
+ status.phy_stat = hw->phy_stat;
+ tmp = hw->count;
+ status.frame_count = (tmp >> 4);
+ status.rts_count = (tmp & 0x0F);
+ tmp = hw->flags << 1;
+ status.supp_reason = ((tmp & 0x1C) >> 2);
+ status.pm_indicated = !!(tmp & 0x80);
+ status.intermediate = !!(tmp & 0x40);
+ status.for_ampdu = !!(tmp & 0x20);
+ status.acked = !!(tmp & 0x02);
+
+ b43legacy_handle_txstatus(dev, &status);
+}
+
+/* Stop any TX operation on the device (suspend the hardware queues) */
+void b43legacy_tx_suspend(struct b43legacy_wldev *dev)
+{
+ if (b43legacy_using_pio(dev))
+ b43legacy_pio_freeze_txqueues(dev);
+ else
+ b43legacy_dma_tx_suspend(dev);
+}
+
+/* Resume any TX operation on the device (resume the hardware queues) */
+void b43legacy_tx_resume(struct b43legacy_wldev *dev)
+{
+ if (b43legacy_using_pio(dev))
+ b43legacy_pio_thaw_txqueues(dev);
+ else
+ b43legacy_dma_tx_resume(dev);
+}
+
+/* Initialize the QoS parameters */
+void b43legacy_qos_init(struct b43legacy_wldev *dev)
+{
+ /* FIXME: This function must probably be called from the mac80211
+ * config callback. */
+return;
+
+ b43legacy_hf_write(dev, b43legacy_hf_read(dev) | B43legacy_HF_EDCF);
+ /* FIXME kill magic */
+ b43legacy_write16(dev, 0x688,
+ b43legacy_read16(dev, 0x688) | 0x4);
+
+
+ /*TODO: We might need some stack support here to get the values. */
+}
--- /dev/null
+#ifndef B43legacy_XMIT_H_
+#define B43legacy_XMIT_H_
+
+#include "main.h"
+
+
+#define _b43legacy_declare_plcp_hdr(size) \
+ struct b43legacy_plcp_hdr##size { \
+ union { \
+ __le32 data; \
+ __u8 raw[size]; \
+ } __packed; \
+ } __packed
+
+/* struct b43legacy_plcp_hdr4 */
+_b43legacy_declare_plcp_hdr(4);
+/* struct b43legacy_plcp_hdr6 */
+_b43legacy_declare_plcp_hdr(6);
+
+#undef _b43legacy_declare_plcp_hdr
+
+
+/* TX header for v3 firmware */
+struct b43legacy_txhdr_fw3 {
+ __le32 mac_ctl; /* MAC TX control */
+ __le16 mac_frame_ctl; /* Copy of the FrameControl */
+ __le16 tx_fes_time_norm; /* TX FES Time Normal */
+ __le16 phy_ctl; /* PHY TX control */
+ __u8 iv[16]; /* Encryption IV */
+ __u8 tx_receiver[6]; /* TX Frame Receiver address */
+ __le16 tx_fes_time_fb; /* TX FES Time Fallback */
+ struct b43legacy_plcp_hdr4 rts_plcp_fb; /* RTS fallback PLCP */
+ __le16 rts_dur_fb; /* RTS fallback duration */
+ struct b43legacy_plcp_hdr4 plcp_fb; /* Fallback PLCP */
+ __le16 dur_fb; /* Fallback duration */
+ PAD_BYTES(2);
+ __le16 cookie;
+ __le16 unknown_scb_stuff;
+ struct b43legacy_plcp_hdr6 rts_plcp; /* RTS PLCP */
+ __u8 rts_frame[18]; /* The RTS frame (if used) */
+ struct b43legacy_plcp_hdr6 plcp;
+} __packed;
+
+/* MAC TX control */
+#define B43legacy_TX4_MAC_KEYIDX 0x0FF00000 /* Security key index */
+#define B43legacy_TX4_MAC_KEYIDX_SHIFT 20
+#define B43legacy_TX4_MAC_KEYALG 0x00070000 /* Security key algorithm */
+#define B43legacy_TX4_MAC_KEYALG_SHIFT 16
+#define B43legacy_TX4_MAC_LIFETIME 0x00001000
+#define B43legacy_TX4_MAC_FRAMEBURST 0x00000800
+#define B43legacy_TX4_MAC_SENDCTS 0x00000400
+#define B43legacy_TX4_MAC_AMPDU 0x00000300
+#define B43legacy_TX4_MAC_AMPDU_SHIFT 8
+#define B43legacy_TX4_MAC_CTSFALLBACKOFDM 0x00000200
+#define B43legacy_TX4_MAC_FALLBACKOFDM 0x00000100
+#define B43legacy_TX4_MAC_5GHZ 0x00000080
+#define B43legacy_TX4_MAC_IGNPMQ 0x00000020
+#define B43legacy_TX4_MAC_HWSEQ 0x00000010 /* Use Hardware Seq No */
+#define B43legacy_TX4_MAC_STMSDU 0x00000008 /* Start MSDU */
+#define B43legacy_TX4_MAC_SENDRTS 0x00000004
+#define B43legacy_TX4_MAC_LONGFRAME 0x00000002
+#define B43legacy_TX4_MAC_ACK 0x00000001
+
+/* Extra Frame Types */
+#define B43legacy_TX4_EFT_FBOFDM 0x0001 /* Data frame fb rate type */
+#define B43legacy_TX4_EFT_RTSOFDM 0x0004 /* RTS/CTS rate type */
+#define B43legacy_TX4_EFT_RTSFBOFDM 0x0010 /* RTS/CTS fallback rate type */
+
+/* PHY TX control word */
+#define B43legacy_TX4_PHY_ENC 0x0003 /* Data frame encoding */
+#define B43legacy_TX4_PHY_ENC_CCK 0x0000 /* CCK */
+#define B43legacy_TX4_PHY_ENC_OFDM 0x0001 /* Data frame rate type */
+#define B43legacy_TX4_PHY_SHORTPRMBL 0x0010 /* Use short preamble */
+#define B43legacy_TX4_PHY_ANT 0x03C0 /* Antenna selection */
+#define B43legacy_TX4_PHY_ANT0 0x0000 /* Use antenna 0 */
+#define B43legacy_TX4_PHY_ANT1 0x0100 /* Use antenna 1 */
+#define B43legacy_TX4_PHY_ANTLAST 0x0300 /* Use last used antenna */
+
+
+
+int b43legacy_generate_txhdr(struct b43legacy_wldev *dev,
+ u8 *txhdr,
+ const unsigned char *fragment_data,
+ unsigned int fragment_len,
+ struct ieee80211_tx_info *info,
+ u16 cookie);
+
+
+/* Transmit Status */
+struct b43legacy_txstatus {
+ u16 cookie; /* The cookie from the txhdr */
+ u16 seq; /* Sequence number */
+ u8 phy_stat; /* PHY TX status */
+ u8 frame_count; /* Frame transmit count */
+ u8 rts_count; /* RTS transmit count */
+ u8 supp_reason; /* Suppression reason */
+ /* flags */
+ u8 pm_indicated;/* PM mode indicated to AP */
+ u8 intermediate;/* Intermediate status notification */
+ u8 for_ampdu; /* Status is for an AMPDU (afterburner) */
+ u8 acked; /* Wireless ACK received */
+};
+
+/* txstatus supp_reason values */
+enum {
+ B43legacy_TXST_SUPP_NONE, /* Not suppressed */
+ B43legacy_TXST_SUPP_PMQ, /* Suppressed due to PMQ entry */
+ B43legacy_TXST_SUPP_FLUSH, /* Suppressed due to flush request */
+ B43legacy_TXST_SUPP_PREV, /* Previous fragment failed */
+ B43legacy_TXST_SUPP_CHAN, /* Channel mismatch */
+ B43legacy_TXST_SUPP_LIFE, /* Lifetime expired */
+ B43legacy_TXST_SUPP_UNDER, /* Buffer underflow */
+ B43legacy_TXST_SUPP_ABNACK, /* Afterburner NACK */
+};
+
+/* Transmit Status as received through DMA/PIO on old chips */
+struct b43legacy_hwtxstatus {
+ PAD_BYTES(4);
+ __le16 cookie;
+ u8 flags;
+ u8 count;
+ PAD_BYTES(2);
+ __le16 seq;
+ u8 phy_stat;
+ PAD_BYTES(1);
+} __packed;
+
+
+/* Receive header for v3 firmware. */
+struct b43legacy_rxhdr_fw3 {
+ __le16 frame_len; /* Frame length */
+ PAD_BYTES(2);
+ __le16 phy_status0; /* PHY RX Status 0 */
+ __u8 jssi; /* PHY RX Status 1: JSSI */
+ __u8 sig_qual; /* PHY RX Status 1: Signal Quality */
+ PAD_BYTES(2); /* PHY RX Status 2 */
+ __le16 phy_status3; /* PHY RX Status 3 */
+ __le16 mac_status; /* MAC RX status */
+ __le16 mac_time;
+ __le16 channel;
+} __packed;
+
+
+/* PHY RX Status 0 */
+#define B43legacy_RX_PHYST0_GAINCTL 0x4000 /* Gain Control */
+#define B43legacy_RX_PHYST0_PLCPHCF 0x0200
+#define B43legacy_RX_PHYST0_PLCPFV 0x0100
+#define B43legacy_RX_PHYST0_SHORTPRMBL 0x0080 /* Recvd with Short Preamble */
+#define B43legacy_RX_PHYST0_LCRS 0x0040
+#define B43legacy_RX_PHYST0_ANT 0x0020 /* Antenna */
+#define B43legacy_RX_PHYST0_UNSRATE 0x0010
+#define B43legacy_RX_PHYST0_CLIP 0x000C
+#define B43legacy_RX_PHYST0_CLIP_SHIFT 2
+#define B43legacy_RX_PHYST0_FTYPE 0x0003 /* Frame type */
+#define B43legacy_RX_PHYST0_CCK 0x0000 /* Frame type: CCK */
+#define B43legacy_RX_PHYST0_OFDM 0x0001 /* Frame type: OFDM */
+#define B43legacy_RX_PHYST0_PRE_N 0x0002 /* Pre-standard N-PHY frame */
+#define B43legacy_RX_PHYST0_STD_N 0x0003 /* Standard N-PHY frame */
+
+/* PHY RX Status 2 */
+#define B43legacy_RX_PHYST2_LNAG 0xC000 /* LNA Gain */
+#define B43legacy_RX_PHYST2_LNAG_SHIFT 14
+#define B43legacy_RX_PHYST2_PNAG 0x3C00 /* PNA Gain */
+#define B43legacy_RX_PHYST2_PNAG_SHIFT 10
+#define B43legacy_RX_PHYST2_FOFF 0x03FF /* F offset */
+
+/* PHY RX Status 3 */
+#define B43legacy_RX_PHYST3_DIGG 0x1800 /* DIG Gain */
+#define B43legacy_RX_PHYST3_DIGG_SHIFT 11
+#define B43legacy_RX_PHYST3_TRSTATE 0x0400 /* TR state */
+
+/* MAC RX Status */
+#define B43legacy_RX_MAC_BEACONSENT 0x00008000 /* Beacon send flag */
+#define B43legacy_RX_MAC_KEYIDX 0x000007E0 /* Key index */
+#define B43legacy_RX_MAC_KEYIDX_SHIFT 5
+#define B43legacy_RX_MAC_DECERR 0x00000010 /* Decrypt error */
+#define B43legacy_RX_MAC_DEC 0x00000008 /* Decryption attempted */
+#define B43legacy_RX_MAC_PADDING 0x00000004 /* Pad bytes present */
+#define B43legacy_RX_MAC_RESP 0x00000002 /* Response frame xmitted */
+#define B43legacy_RX_MAC_FCSERR 0x00000001 /* FCS error */
+
+/* RX channel */
+#define B43legacy_RX_CHAN_GAIN 0xFC00 /* Gain */
+#define B43legacy_RX_CHAN_GAIN_SHIFT 10
+#define B43legacy_RX_CHAN_ID 0x03FC /* Channel ID */
+#define B43legacy_RX_CHAN_ID_SHIFT 2
+#define B43legacy_RX_CHAN_PHYTYPE 0x0003 /* PHY type */
+
+
+
+u8 b43legacy_plcp_get_ratecode_cck(const u8 bitrate);
+u8 b43legacy_plcp_get_ratecode_ofdm(const u8 bitrate);
+
+void b43legacy_generate_plcp_hdr(struct b43legacy_plcp_hdr4 *plcp,
+ const u16 octets, const u8 bitrate);
+
+void b43legacy_rx(struct b43legacy_wldev *dev,
+ struct sk_buff *skb,
+ const void *_rxhdr);
+
+void b43legacy_handle_txstatus(struct b43legacy_wldev *dev,
+ const struct b43legacy_txstatus *status);
+
+void b43legacy_handle_hwtxstatus(struct b43legacy_wldev *dev,
+ const struct b43legacy_hwtxstatus *hw);
+
+void b43legacy_tx_suspend(struct b43legacy_wldev *dev);
+void b43legacy_tx_resume(struct b43legacy_wldev *dev);
+
+
+#define B43legacy_NR_QOSPARMS 22
+enum {
+ B43legacy_QOSPARM_TXOP = 0,
+ B43legacy_QOSPARM_CWMIN,
+ B43legacy_QOSPARM_CWMAX,
+ B43legacy_QOSPARM_CWCUR,
+ B43legacy_QOSPARM_AIFS,
+ B43legacy_QOSPARM_BSLOTS,
+ B43legacy_QOSPARM_REGGAP,
+ B43legacy_QOSPARM_STATUS,
+};
+
+void b43legacy_qos_init(struct b43legacy_wldev *dev);
+
+
+/* Helper functions for converting the key-table index from "firmware-format"
+ * to "raw-format" and back. The firmware API changed for this at some revision.
+ * We need to account for that here. */
+static inline
+int b43legacy_new_kidx_api(struct b43legacy_wldev *dev)
+{
+ /* FIXME: Not sure the change was at rev 351 */
+ return (dev->fw.rev >= 351);
+}
+static inline
+u8 b43legacy_kidx_to_fw(struct b43legacy_wldev *dev, u8 raw_kidx)
+{
+ u8 firmware_kidx;
+ if (b43legacy_new_kidx_api(dev))
+ firmware_kidx = raw_kidx;
+ else {
+ if (raw_kidx >= 4) /* Is per STA key? */
+ firmware_kidx = raw_kidx - 4;
+ else
+ firmware_kidx = raw_kidx; /* TX default key */
+ }
+ return firmware_kidx;
+}
+static inline
+u8 b43legacy_kidx_to_raw(struct b43legacy_wldev *dev, u8 firmware_kidx)
+{
+ u8 raw_kidx;
+ if (b43legacy_new_kidx_api(dev))
+ raw_kidx = firmware_kidx;
+ else
+ /* RX default keys or per STA keys */
+ raw_kidx = firmware_kidx + 4;
+ return raw_kidx;
+}
+
+#endif /* B43legacy_XMIT_H_ */
projects / GitHub / LineageOS / G12 / android_kernel_amlogic_linux-4.9.git / commitdiff