--- /dev/null
+/*
+ * Copyright (c) 2013 Realtek Semiconductor Corp. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/signal.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/usb.h>
+#include <linux/crc32.h>
+#include <linux/if_vlan.h>
+#include <linux/uaccess.h>
+
+/* Version Information */
+#define DRIVER_VERSION "v1.0.0 (2013/05/03)"
+#define DRIVER_AUTHOR "Realtek linux nic maintainers <nic_swsd@realtek.com>"
+#define DRIVER_DESC "Realtek RTL8152 Based USB 2.0 Ethernet Adapters"
+#define MODULENAME "r8152"
+
+#define R8152_PHY_ID 32
+
+#define PLA_IDR 0xc000
+#define PLA_RCR 0xc010
+#define PLA_RMS 0xc016
+#define PLA_RXFIFO_CTRL0 0xc0a0
+#define PLA_RXFIFO_CTRL1 0xc0a4
+#define PLA_RXFIFO_CTRL2 0xc0a8
+#define PLA_FMC 0xc0b4
+#define PLA_CFG_WOL 0xc0b6
+#define PLA_MAR 0xcd00
+#define PAL_BDC_CR 0xd1a0
+#define PLA_LEDSEL 0xdd90
+#define PLA_LED_FEATURE 0xdd92
+#define PLA_PHYAR 0xde00
+#define PLA_GPHY_INTR_IMR 0xe022
+#define PLA_EEE_CR 0xe040
+#define PLA_EEEP_CR 0xe080
+#define PLA_MAC_PWR_CTRL 0xe0c0
+#define PLA_TCR0 0xe610
+#define PLA_TCR1 0xe612
+#define PLA_TXFIFO_CTRL 0xe618
+#define PLA_RSTTELLY 0xe800
+#define PLA_CR 0xe813
+#define PLA_CRWECR 0xe81c
+#define PLA_CONFIG5 0xe822
+#define PLA_PHY_PWR 0xe84c
+#define PLA_OOB_CTRL 0xe84f
+#define PLA_CPCR 0xe854
+#define PLA_MISC_0 0xe858
+#define PLA_MISC_1 0xe85a
+#define PLA_OCP_GPHY_BASE 0xe86c
+#define PLA_TELLYCNT 0xe890
+#define PLA_SFF_STS_7 0xe8de
+#define PLA_PHYSTATUS 0xe908
+#define PLA_BP_BA 0xfc26
+#define PLA_BP_0 0xfc28
+#define PLA_BP_1 0xfc2a
+#define PLA_BP_2 0xfc2c
+#define PLA_BP_3 0xfc2e
+#define PLA_BP_4 0xfc30
+#define PLA_BP_5 0xfc32
+#define PLA_BP_6 0xfc34
+#define PLA_BP_7 0xfc36
+
+#define USB_DEV_STAT 0xb808
+#define USB_USB_CTRL 0xd406
+#define USB_PHY_CTRL 0xd408
+#define USB_TX_AGG 0xd40a
+#define USB_RX_BUF_TH 0xd40c
+#define USB_USB_TIMER 0xd428
+#define USB_PM_CTRL_STATUS 0xd432
+#define USB_TX_DMA 0xd434
+#define USB_UPS_CTRL 0xd800
+#define USB_BP_BA 0xfc26
+#define USB_BP_0 0xfc28
+#define USB_BP_1 0xfc2a
+#define USB_BP_2 0xfc2c
+#define USB_BP_3 0xfc2e
+#define USB_BP_4 0xfc30
+#define USB_BP_5 0xfc32
+#define USB_BP_6 0xfc34
+#define USB_BP_7 0xfc36
+
+/* OCP Registers */
+#define OCP_ALDPS_CONFIG 0x2010
+#define OCP_EEE_CONFIG1 0x2080
+#define OCP_EEE_CONFIG2 0x2092
+#define OCP_EEE_CONFIG3 0x2094
+#define OCP_EEE_AR 0xa41a
+#define OCP_EEE_DATA 0xa41c
+
+/* PLA_RCR */
+#define RCR_AAP 0x00000001
+#define RCR_APM 0x00000002
+#define RCR_AM 0x00000004
+#define RCR_AB 0x00000008
+#define RCR_ACPT_ALL (RCR_AAP | RCR_APM | RCR_AM | RCR_AB)
+
+/* PLA_RXFIFO_CTRL0 */
+#define RXFIFO_THR1_NORMAL 0x00080002
+#define RXFIFO_THR1_OOB 0x01800003
+
+/* PLA_RXFIFO_CTRL1 */
+#define RXFIFO_THR2_FULL 0x00000060
+#define RXFIFO_THR2_HIGH 0x00000038
+#define RXFIFO_THR2_OOB 0x0000004a
+
+/* PLA_RXFIFO_CTRL2 */
+#define RXFIFO_THR3_FULL 0x00000078
+#define RXFIFO_THR3_HIGH 0x00000048
+#define RXFIFO_THR3_OOB 0x0000005a
+
+/* PLA_TXFIFO_CTRL */
+#define TXFIFO_THR_NORMAL 0x00400008
+
+/* PLA_FMC */
+#define FMC_FCR_MCU_EN 0x0001
+
+/* PLA_EEEP_CR */
+#define EEEP_CR_EEEP_TX 0x0002
+
+/* PLA_TCR0 */
+#define TCR0_TX_EMPTY 0x0800
+#define TCR0_AUTO_FIFO 0x0080
+
+/* PLA_TCR1 */
+#define VERSION_MASK 0x7cf0
+
+/* PLA_CR */
+#define CR_RST 0x10
+#define CR_RE 0x08
+#define CR_TE 0x04
+
+/* PLA_CRWECR */
+#define CRWECR_NORAML 0x00
+#define CRWECR_CONFIG 0xc0
+
+/* PLA_OOB_CTRL */
+#define NOW_IS_OOB 0x80
+#define TXFIFO_EMPTY 0x20
+#define RXFIFO_EMPTY 0x10
+#define LINK_LIST_READY 0x02
+#define DIS_MCU_CLROOB 0x01
+#define FIFO_EMPTY (TXFIFO_EMPTY | RXFIFO_EMPTY)
+
+/* PLA_MISC_1 */
+#define RXDY_GATED_EN 0x0008
+
+/* PLA_SFF_STS_7 */
+#define RE_INIT_LL 0x8000
+#define MCU_BORW_EN 0x4000
+
+/* PLA_CPCR */
+#define CPCR_RX_VLAN 0x0040
+
+/* PLA_CFG_WOL */
+#define MAGIC_EN 0x0001
+
+/* PAL_BDC_CR */
+#define ALDPS_PROXY_MODE 0x0001
+
+/* PLA_CONFIG5 */
+#define LAN_WAKE_EN 0x0002
+
+/* PLA_LED_FEATURE */
+#define LED_MODE_MASK 0x0700
+
+/* PLA_PHY_PWR */
+#define TX_10M_IDLE_EN 0x0080
+#define PFM_PWM_SWITCH 0x0040
+
+/* PLA_MAC_PWR_CTRL */
+#define D3_CLK_GATED_EN 0x00004000
+#define MCU_CLK_RATIO 0x07010f07
+#define MCU_CLK_RATIO_MASK 0x0f0f0f0f
+
+/* PLA_GPHY_INTR_IMR */
+#define GPHY_STS_MSK 0x0001
+#define SPEED_DOWN_MSK 0x0002
+#define SPDWN_RXDV_MSK 0x0004
+#define SPDWN_LINKCHG_MSK 0x0008
+
+/* PLA_PHYAR */
+#define PHYAR_FLAG 0x80000000
+
+/* PLA_EEE_CR */
+#define EEE_RX_EN 0x0001
+#define EEE_TX_EN 0x0002
+
+/* USB_DEV_STAT */
+#define STAT_SPEED_MASK 0x0006
+#define STAT_SPEED_HIGH 0x0000
+#define STAT_SPEED_FULL 0x0001
+
+/* USB_TX_AGG */
+#define TX_AGG_MAX_THRESHOLD 0x03
+
+/* USB_RX_BUF_TH */
+#define RX_BUF_THR 0x7a120180
+
+/* USB_TX_DMA */
+#define TEST_MODE_DISABLE 0x00000001
+#define TX_SIZE_ADJUST1 0x00000100
+
+/* USB_UPS_CTRL */
+#define POWER_CUT 0x0100
+
+/* USB_PM_CTRL_STATUS */
+#define RWSUME_INDICATE 0x0001
+
+/* USB_USB_CTRL */
+#define RX_AGG_DISABLE 0x0010
+
+/* OCP_ALDPS_CONFIG */
+#define ENPWRSAVE 0x8000
+#define ENPDNPS 0x0200
+#define LINKENA 0x0100
+#define DIS_SDSAVE 0x0010
+
+/* OCP_EEE_CONFIG1 */
+#define RG_TXLPI_MSK_HFDUP 0x8000
+#define RG_MATCLR_EN 0x4000
+#define EEE_10_CAP 0x2000
+#define EEE_NWAY_EN 0x1000
+#define TX_QUIET_EN 0x0200
+#define RX_QUIET_EN 0x0100
+#define SDRISETIME 0x0010 /* bit 4 ~ 6 */
+#define RG_RXLPI_MSK_HFDUP 0x0008
+#define SDFALLTIME 0x0007 /* bit 0 ~ 2 */
+
+/* OCP_EEE_CONFIG2 */
+#define RG_LPIHYS_NUM 0x7000 /* bit 12 ~ 15 */
+#define RG_DACQUIET_EN 0x0400
+#define RG_LDVQUIET_EN 0x0200
+#define RG_CKRSEL 0x0020
+#define RG_EEEPRG_EN 0x0010
+
+/* OCP_EEE_CONFIG3 */
+#define FST_SNR_EYE_R 0x1500 /* bit 7 ~ 15 */
+#define RG_LFS_SEL 0x0060 /* bit 6 ~ 5 */
+#define MSK_PH 0x0006 /* bit 0 ~ 3 */
+
+/* OCP_EEE_AR */
+/* bit[15:14] function */
+#define FUN_ADDR 0x0000
+#define FUN_DATA 0x4000
+/* bit[4:0] device addr */
+#define DEVICE_ADDR 0x0007
+
+/* OCP_EEE_DATA */
+#define EEE_ADDR 0x003C
+#define EEE_DATA 0x0002
+
+enum rtl_register_content {
+ _100bps = 0x08,
+ _10bps = 0x04,
+ LINK_STATUS = 0x02,
+ FULL_DUP = 0x01,
+};
+
+#define RTL8152_REQT_READ 0xc0
+#define RTL8152_REQT_WRITE 0x40
+#define RTL8152_REQ_GET_REGS 0x05
+#define RTL8152_REQ_SET_REGS 0x05
+
+#define BYTE_EN_DWORD 0xff
+#define BYTE_EN_WORD 0x33
+#define BYTE_EN_BYTE 0x11
+#define BYTE_EN_SIX_BYTES 0x3f
+#define BYTE_EN_START_MASK 0x0f
+#define BYTE_EN_END_MASK 0xf0
+
+#define RTL8152_RMS (VLAN_ETH_FRAME_LEN + VLAN_HLEN)
+#define RTL8152_TX_TIMEOUT (HZ)
+
+/* rtl8152 flags */
+enum rtl8152_flags {
+ RTL8152_UNPLUG = 0,
+ RX_URB_FAIL,
+ RTL8152_SET_RX_MODE,
+ WORK_ENABLE
+};
+
+/* Define these values to match your device */
+#define VENDOR_ID_REALTEK 0x0bda
+#define PRODUCT_ID_RTL8152 0x8152
+
+#define MCU_TYPE_PLA 0x0100
+#define MCU_TYPE_USB 0x0000
+
+struct rx_desc {
+ u32 opts1;
+#define RX_LEN_MASK 0x7fff
+ u32 opts2;
+ u32 opts3;
+ u32 opts4;
+ u32 opts5;
+ u32 opts6;
+};
+
+struct tx_desc {
+ u32 opts1;
+#define TX_FS (1 << 31) /* First segment of a packet */
+#define TX_LS (1 << 30) /* Final segment of a packet */
+#define TX_LEN_MASK 0xffff
+ u32 opts2;
+};
+
+struct r8152 {
+ unsigned long flags;
+ struct usb_device *udev;
+ struct tasklet_struct tl;
+ struct net_device *netdev;
+ struct urb *rx_urb, *tx_urb;
+ struct sk_buff *tx_skb, *rx_skb;
+ struct delayed_work schedule;
+ struct mii_if_info mii;
+ u32 msg_enable;
+ u16 ocp_base;
+ u8 version;
+ u8 speed;
+};
+
+enum rtl_version {
+ RTL_VER_UNKNOWN = 0,
+ RTL_VER_01,
+ RTL_VER_02
+};
+
+/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
+ * The RTL chips use a 64 element hash table based on the Ethernet CRC.
+ */
+static const int multicast_filter_limit = 32;
+
+static
+int get_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
+{
+ return usb_control_msg(tp->udev, usb_rcvctrlpipe(tp->udev, 0),
+ RTL8152_REQ_GET_REGS, RTL8152_REQT_READ,
+ value, index, data, size, 500);
+}
+
+static
+int set_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
+{
+ return usb_control_msg(tp->udev, usb_sndctrlpipe(tp->udev, 0),
+ RTL8152_REQ_SET_REGS, RTL8152_REQT_WRITE,
+ value, index, data, size, 500);
+}
+
+static int generic_ocp_read(struct r8152 *tp, u16 index, u16 size,
+ void *data, u16 type)
+{
+ u16 limit = 64;
+ int ret = 0;
+
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ return -ENODEV;
+
+ /* both size and indix must be 4 bytes align */
+ if ((size & 3) || !size || (index & 3) || !data)
+ return -EPERM;
+
+ if ((u32)index + (u32)size > 0xffff)
+ return -EPERM;
+
+ while (size) {
+ if (size > limit) {
+ ret = get_registers(tp, index, type, limit, data);
+ if (ret < 0)
+ break;
+
+ index += limit;
+ data += limit;
+ size -= limit;
+ } else {
+ ret = get_registers(tp, index, type, size, data);
+ if (ret < 0)
+ break;
+
+ index += size;
+ data += size;
+ size = 0;
+ break;
+ }
+ }
+
+ return ret;
+}
+
+static int generic_ocp_write(struct r8152 *tp, u16 index, u16 byteen,
+ u16 size, void *data, u16 type)
+{
+ int ret;
+ u16 byteen_start, byteen_end, byen;
+ u16 limit = 512;
+
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ return -ENODEV;
+
+ /* both size and indix must be 4 bytes align */
+ if ((size & 3) || !size || (index & 3) || !data)
+ return -EPERM;
+
+ if ((u32)index + (u32)size > 0xffff)
+ return -EPERM;
+
+ byteen_start = byteen & BYTE_EN_START_MASK;
+ byteen_end = byteen & BYTE_EN_END_MASK;
+
+ byen = byteen_start | (byteen_start << 4);
+ ret = set_registers(tp, index, type | byen, 4, data);
+ if (ret < 0)
+ goto error1;
+
+ index += 4;
+ data += 4;
+ size -= 4;
+
+ if (size) {
+ size -= 4;
+
+ while (size) {
+ if (size > limit) {
+ ret = set_registers(tp, index,
+ type | BYTE_EN_DWORD,
+ limit, data);
+ if (ret < 0)
+ goto error1;
+
+ index += limit;
+ data += limit;
+ size -= limit;
+ } else {
+ ret = set_registers(tp, index,
+ type | BYTE_EN_DWORD,
+ size, data);
+ if (ret < 0)
+ goto error1;
+
+ index += size;
+ data += size;
+ size = 0;
+ break;
+ }
+ }
+
+ byen = byteen_end | (byteen_end >> 4);
+ ret = set_registers(tp, index, type | byen, 4, data);
+ if (ret < 0)
+ goto error1;
+ }
+
+error1:
+ return ret;
+}
+
+static inline
+int pla_ocp_read(struct r8152 *tp, u16 index, u16 size, void *data)
+{
+ return generic_ocp_read(tp, index, size, data, MCU_TYPE_PLA);
+}
+
+static inline
+int pla_ocp_write(struct r8152 *tp, u16 index, u16 byteen, u16 size, void *data)
+{
+ return generic_ocp_write(tp, index, byteen, size, data, MCU_TYPE_PLA);
+}
+
+static inline
+int usb_ocp_read(struct r8152 *tp, u16 index, u16 size, void *data)
+{
+ return generic_ocp_read(tp, index, size, data, MCU_TYPE_USB);
+}
+
+static inline
+int usb_ocp_write(struct r8152 *tp, u16 index, u16 byteen, u16 size, void *data)
+{
+ return generic_ocp_write(tp, index, byteen, size, data, MCU_TYPE_USB);
+}
+
+static u32 ocp_read_dword(struct r8152 *tp, u16 type, u16 index)
+{
+ u32 data;
+
+ if (type == MCU_TYPE_PLA)
+ pla_ocp_read(tp, index, sizeof(data), &data);
+ else
+ usb_ocp_read(tp, index, sizeof(data), &data);
+
+ return __le32_to_cpu(data);
+}
+
+static void ocp_write_dword(struct r8152 *tp, u16 type, u16 index, u32 data)
+{
+ if (type == MCU_TYPE_PLA)
+ pla_ocp_write(tp, index, BYTE_EN_DWORD, sizeof(data), &data);
+ else
+ usb_ocp_write(tp, index, BYTE_EN_DWORD, sizeof(data), &data);
+}
+
+static u16 ocp_read_word(struct r8152 *tp, u16 type, u16 index)
+{
+ u32 data;
+ u8 shift = index & 2;
+
+ index &= ~3;
+
+ if (type == MCU_TYPE_PLA)
+ pla_ocp_read(tp, index, sizeof(data), &data);
+ else
+ usb_ocp_read(tp, index, sizeof(data), &data);
+
+ data = __le32_to_cpu(data);
+ data >>= (shift * 8);
+ data &= 0xffff;
+
+ return (u16)data;
+}
+
+static void ocp_write_word(struct r8152 *tp, u16 type, u16 index, u32 data)
+{
+ u32 tmp, mask = 0xffff;
+ u16 byen = BYTE_EN_WORD;
+ u8 shift = index & 2;
+
+ data &= mask;
+
+ if (index & 2) {
+ byen <<= shift;
+ mask <<= (shift * 8);
+ data <<= (shift * 8);
+ index &= ~3;
+ }
+
+ if (type == MCU_TYPE_PLA)
+ pla_ocp_read(tp, index, sizeof(tmp), &tmp);
+ else
+ usb_ocp_read(tp, index, sizeof(tmp), &tmp);
+
+ tmp = __le32_to_cpu(tmp) & ~mask;
+ tmp |= data;
+ tmp = __cpu_to_le32(tmp);
+
+ if (type == MCU_TYPE_PLA)
+ pla_ocp_write(tp, index, byen, sizeof(tmp), &tmp);
+ else
+ usb_ocp_write(tp, index, byen, sizeof(tmp), &tmp);
+}
+
+static u8 ocp_read_byte(struct r8152 *tp, u16 type, u16 index)
+{
+ u32 data;
+ u8 shift = index & 3;
+
+ index &= ~3;
+
+ if (type == MCU_TYPE_PLA)
+ pla_ocp_read(tp, index, sizeof(data), &data);
+ else
+ usb_ocp_read(tp, index, sizeof(data), &data);
+
+ data = __le32_to_cpu(data);
+ data >>= (shift * 8);
+ data &= 0xff;
+
+ return (u8)data;
+}
+
+static void ocp_write_byte(struct r8152 *tp, u16 type, u16 index, u32 data)
+{
+ u32 tmp, mask = 0xff;
+ u16 byen = BYTE_EN_BYTE;
+ u8 shift = index & 3;
+
+ data &= mask;
+
+ if (index & 3) {
+ byen <<= shift;
+ mask <<= (shift * 8);
+ data <<= (shift * 8);
+ index &= ~3;
+ }
+
+ if (type == MCU_TYPE_PLA)
+ pla_ocp_read(tp, index, sizeof(tmp), &tmp);
+ else
+ usb_ocp_read(tp, index, sizeof(tmp), &tmp);
+
+ tmp = __le32_to_cpu(tmp) & ~mask;
+ tmp |= data;
+ tmp = __cpu_to_le32(tmp);
+
+ if (type == MCU_TYPE_PLA)
+ pla_ocp_write(tp, index, byen, sizeof(tmp), &tmp);
+ else
+ usb_ocp_write(tp, index, byen, sizeof(tmp), &tmp);
+}
+
+static void r8152_mdio_write(struct r8152 *tp, u32 reg_addr, u32 value)
+{
+ u32 ocp_data;
+ int i;
+
+ ocp_data = PHYAR_FLAG | ((reg_addr & 0x1f) << 16) |
+ (value & 0xffff);
+
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_PHYAR, ocp_data);
+
+ for (i = 20; i > 0; i--) {
+ udelay(25);
+ ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_PHYAR);
+ if (!(ocp_data & PHYAR_FLAG))
+ break;
+ }
+ udelay(20);
+}
+
+static int r8152_mdio_read(struct r8152 *tp, u32 reg_addr)
+{
+ u32 ocp_data;
+ int i;
+
+ ocp_data = (reg_addr & 0x1f) << 16;
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_PHYAR, ocp_data);
+
+ for (i = 20; i > 0; i--) {
+ udelay(25);
+ ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_PHYAR);
+ if (ocp_data & PHYAR_FLAG)
+ break;
+ }
+ udelay(20);
+
+ if (!(ocp_data & PHYAR_FLAG))
+ return -EAGAIN;
+
+ return (u16)(ocp_data & 0xffff);
+}
+
+static int read_mii_word(struct net_device *netdev, int phy_id, int reg)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+
+ if (phy_id != R8152_PHY_ID)
+ return -EINVAL;
+
+ return r8152_mdio_read(tp, reg);
+}
+
+static
+void write_mii_word(struct net_device *netdev, int phy_id, int reg, int val)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+
+ if (phy_id != R8152_PHY_ID)
+ return;
+
+ r8152_mdio_write(tp, reg, val);
+}
+
+static void ocp_reg_write(struct r8152 *tp, u16 addr, u16 data)
+{
+ u16 ocp_base, ocp_index;
+
+ ocp_base = addr & 0xf000;
+ if (ocp_base != tp->ocp_base) {
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, ocp_base);
+ tp->ocp_base = ocp_base;
+ }
+
+ ocp_index = (addr & 0x0fff) | 0xb000;
+ ocp_write_word(tp, MCU_TYPE_PLA, ocp_index, data);
+}
+
+static inline void set_ethernet_addr(struct r8152 *tp)
+{
+ struct net_device *dev = tp->netdev;
+ u8 *node_id;
+
+ node_id = kmalloc(sizeof(u8) * 8, GFP_KERNEL);
+ if (!node_id) {
+ netif_err(tp, probe, dev, "out of memory");
+ return;
+ }
+
+ if (pla_ocp_read(tp, PLA_IDR, sizeof(u8) * 8, node_id) < 0)
+ netif_notice(tp, probe, dev, "inet addr fail\n");
+ else {
+ memcpy(dev->dev_addr, node_id, dev->addr_len);
+ memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
+ }
+ kfree(node_id);
+}
+
+static int rtl8152_set_mac_address(struct net_device *netdev, void *p)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+ struct sockaddr *addr = p;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG);
+ pla_ocp_write(tp, PLA_IDR, BYTE_EN_SIX_BYTES, 8, addr->sa_data);
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);
+
+ return 0;
+}
+
+static int alloc_all_urbs(struct r8152 *tp)
+{
+ tp->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!tp->rx_urb)
+ return 0;
+ tp->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!tp->tx_urb) {
+ usb_free_urb(tp->rx_urb);
+ return 0;
+ }
+
+ return 1;
+}
+
+static void free_all_urbs(struct r8152 *tp)
+{
+ usb_free_urb(tp->rx_urb);
+ usb_free_urb(tp->tx_urb);
+}
+
+static struct net_device_stats *rtl8152_get_stats(struct net_device *dev)
+{
+ return &dev->stats;
+}
+
+static void read_bulk_callback(struct urb *urb)
+{
+ struct r8152 *tp;
+ unsigned pkt_len;
+ struct sk_buff *skb;
+ struct net_device *netdev;
+ struct net_device_stats *stats;
+ int status = urb->status;
+ int result;
+ struct rx_desc *rx_desc;
+
+ tp = urb->context;
+ if (!tp)
+ return;
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ return;
+ netdev = tp->netdev;
+ if (!netif_device_present(netdev))
+ return;
+
+ stats = rtl8152_get_stats(netdev);
+ switch (status) {
+ case 0:
+ break;
+ case -ESHUTDOWN:
+ set_bit(RTL8152_UNPLUG, &tp->flags);
+ netif_device_detach(tp->netdev);
+ case -ENOENT:
+ return; /* the urb is in unlink state */
+ case -ETIME:
+ pr_warn_ratelimited("may be reset is needed?..\n");
+ goto goon;
+ default:
+ pr_warn_ratelimited("Rx status %d\n", status);
+ goto goon;
+ }
+
+ /* protect against short packets (tell me why we got some?!?) */
+ if (urb->actual_length < sizeof(*rx_desc))
+ goto goon;
+
+
+ rx_desc = (struct rx_desc *)urb->transfer_buffer;
+ pkt_len = le32_to_cpu(rx_desc->opts1) & RX_LEN_MASK;
+ if (urb->actual_length < sizeof(struct rx_desc) + pkt_len)
+ goto goon;
+
+ skb = netdev_alloc_skb_ip_align(netdev, pkt_len);
+ if (!skb)
+ goto goon;
+
+ memcpy(skb->data, tp->rx_skb->data + sizeof(struct rx_desc), pkt_len);
+ skb_put(skb, pkt_len);
+ skb->protocol = eth_type_trans(skb, netdev);
+ netif_rx(skb);
+ stats->rx_packets++;
+ stats->rx_bytes += pkt_len;
+goon:
+ usb_fill_bulk_urb(tp->rx_urb, tp->udev, usb_rcvbulkpipe(tp->udev, 1),
+ tp->rx_skb->data, RTL8152_RMS + sizeof(struct rx_desc),
+ (usb_complete_t)read_bulk_callback, tp);
+ result = usb_submit_urb(tp->rx_urb, GFP_ATOMIC);
+ if (result == -ENODEV) {
+ netif_device_detach(tp->netdev);
+ } else if (result) {
+ set_bit(RX_URB_FAIL, &tp->flags);
+ goto resched;
+ } else {
+ clear_bit(RX_URB_FAIL, &tp->flags);
+ }
+
+ return;
+resched:
+ tasklet_schedule(&tp->tl);
+}
+
+static void rx_fixup(unsigned long data)
+{
+ struct r8152 *tp;
+ int status;
+
+ tp = (struct r8152 *)data;
+ if (!test_bit(WORK_ENABLE, &tp->flags))
+ return;
+
+ status = usb_submit_urb(tp->rx_urb, GFP_ATOMIC);
+ if (status == -ENODEV) {
+ netif_device_detach(tp->netdev);
+ } else if (status) {
+ set_bit(RX_URB_FAIL, &tp->flags);
+ goto tlsched;
+ } else {
+ clear_bit(RX_URB_FAIL, &tp->flags);
+ }
+
+ return;
+tlsched:
+ tasklet_schedule(&tp->tl);
+}
+
+static void write_bulk_callback(struct urb *urb)
+{
+ struct r8152 *tp;
+ int status = urb->status;
+
+ tp = urb->context;
+ if (!tp)
+ return;
+ dev_kfree_skb_irq(tp->tx_skb);
+ if (!netif_device_present(tp->netdev))
+ return;
+ if (status)
+ dev_info(&urb->dev->dev, "%s: Tx status %d\n",
+ tp->netdev->name, status);
+ tp->netdev->trans_start = jiffies;
+ netif_wake_queue(tp->netdev);
+}
+
+static void rtl8152_tx_timeout(struct net_device *netdev)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+ struct net_device_stats *stats = rtl8152_get_stats(netdev);
+ netif_warn(tp, tx_err, netdev, "Tx timeout.\n");
+ usb_unlink_urb(tp->tx_urb);
+ stats->tx_errors++;
+}
+
+static void rtl8152_set_rx_mode(struct net_device *netdev)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+
+ if (tp->speed & LINK_STATUS)
+ set_bit(RTL8152_SET_RX_MODE, &tp->flags);
+}
+
+static void _rtl8152_set_rx_mode(struct net_device *netdev)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+ u32 tmp, *mc_filter; /* Multicast hash filter */
+ u32 ocp_data;
+
+ mc_filter = kmalloc(sizeof(u32) * 2, GFP_KERNEL);
+ if (!mc_filter) {
+ netif_err(tp, link, netdev, "out of memory");
+ return;
+ }
+
+ clear_bit(RTL8152_SET_RX_MODE, &tp->flags);
+ netif_stop_queue(netdev);
+ ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
+ ocp_data &= ~RCR_ACPT_ALL;
+ ocp_data |= RCR_AB | RCR_APM;
+
+ if (netdev->flags & IFF_PROMISC) {
+ /* Unconditionally log net taps. */
+ netif_notice(tp, link, netdev, "Promiscuous mode enabled\n");
+ ocp_data |= RCR_AM | RCR_AAP;
+ mc_filter[1] = mc_filter[0] = 0xffffffff;
+ } else if ((netdev_mc_count(netdev) > multicast_filter_limit) ||
+ (netdev->flags & IFF_ALLMULTI)) {
+ /* Too many to filter perfectly -- accept all multicasts. */
+ ocp_data |= RCR_AM;
+ mc_filter[1] = mc_filter[0] = 0xffffffff;
+ } else {
+ struct netdev_hw_addr *ha;
+
+ mc_filter[1] = mc_filter[0] = 0;
+ netdev_for_each_mc_addr(ha, netdev) {
+ int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
+ mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
+ ocp_data |= RCR_AM;
+ }
+ }
+
+ tmp = mc_filter[0];
+ mc_filter[0] = __cpu_to_le32(swab32(mc_filter[1]));
+ mc_filter[1] = __cpu_to_le32(swab32(tmp));
+
+ pla_ocp_write(tp, PLA_MAR, BYTE_EN_DWORD, sizeof(u32) * 2, mc_filter);
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
+ netif_wake_queue(netdev);
+ kfree(mc_filter);
+}
+
+static netdev_tx_t rtl8152_start_xmit(struct sk_buff *skb,
+ struct net_device *netdev)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+ struct net_device_stats *stats = rtl8152_get_stats(netdev);
+ struct tx_desc *tx_desc;
+ int len, res;
+
+ netif_stop_queue(netdev);
+ len = skb->len;
+ if (skb_header_cloned(skb) || skb_headroom(skb) < sizeof(*tx_desc)) {
+ struct sk_buff *tx_skb;
+
+ tx_skb = skb_copy_expand(skb, sizeof(*tx_desc), 0, GFP_ATOMIC);
+ dev_kfree_skb_any(skb);
+ if (!tx_skb) {
+ stats->tx_dropped++;
+ netif_wake_queue(netdev);
+ return NETDEV_TX_OK;
+ }
+ skb = tx_skb;
+ }
+ tx_desc = (struct tx_desc *)skb_push(skb, sizeof(*tx_desc));
+ memset(tx_desc, 0, sizeof(*tx_desc));
+ tx_desc->opts1 = cpu_to_le32((len & TX_LEN_MASK) | TX_FS | TX_LS);
+ tp->tx_skb = skb;
+ skb_tx_timestamp(skb);
+ usb_fill_bulk_urb(tp->tx_urb, tp->udev, usb_sndbulkpipe(tp->udev, 2),
+ skb->data, skb->len,
+ (usb_complete_t)write_bulk_callback, tp);
+ res = usb_submit_urb(tp->tx_urb, GFP_ATOMIC);
+ if (res) {
+ /* Can we get/handle EPIPE here? */
+ if (res == -ENODEV) {
+ netif_device_detach(tp->netdev);
+ } else {
+ netif_warn(tp, tx_err, netdev,
+ "failed tx_urb %d\n", res);
+ stats->tx_errors++;
+ netif_start_queue(netdev);
+ }
+ } else {
+ stats->tx_packets++;
+ stats->tx_bytes += skb->len;
+ }
+
+ return NETDEV_TX_OK;
+}
+
+static void r8152b_reset_packet_filter(struct r8152 *tp)
+{
+ u32 ocp_data;
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_FMC);
+ ocp_data &= ~FMC_FCR_MCU_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_FMC, ocp_data);
+ ocp_data |= FMC_FCR_MCU_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_FMC, ocp_data);
+}
+
+static void rtl8152_nic_reset(struct r8152 *tp)
+{
+ int i;
+
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, CR_RST);
+
+ for (i = 0; i < 1000; i++) {
+ if (!(ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CR) & CR_RST))
+ break;
+ udelay(100);
+ }
+}
+
+static inline u8 rtl8152_get_speed(struct r8152 *tp)
+{
+ return ocp_read_byte(tp, MCU_TYPE_PLA, PLA_PHYSTATUS);
+}
+
+static int rtl8152_enable(struct r8152 *tp)
+{
+ u32 ocp_data;
+ u8 speed;
+
+ speed = rtl8152_get_speed(tp);
+ if (speed & _100bps) {
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR);
+ ocp_data &= ~EEEP_CR_EEEP_TX;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR, ocp_data);
+ } else {
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR);
+ ocp_data |= EEEP_CR_EEEP_TX;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR, ocp_data);
+ }
+
+ r8152b_reset_packet_filter(tp);
+
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CR);
+ ocp_data |= CR_RE | CR_TE;
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, ocp_data);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MISC_1);
+ ocp_data &= ~RXDY_GATED_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_MISC_1, ocp_data);
+
+ usb_fill_bulk_urb(tp->rx_urb, tp->udev, usb_rcvbulkpipe(tp->udev, 1),
+ tp->rx_skb->data, RTL8152_RMS + sizeof(struct rx_desc),
+ (usb_complete_t)read_bulk_callback, tp);
+
+ return usb_submit_urb(tp->rx_urb, GFP_KERNEL);
+}
+
+static void rtl8152_disable(struct r8152 *tp)
+{
+ u32 ocp_data;
+ int i;
+
+ ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
+ ocp_data &= ~RCR_ACPT_ALL;
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
+
+ usb_kill_urb(tp->tx_urb);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MISC_1);
+ ocp_data |= RXDY_GATED_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_MISC_1, ocp_data);
+
+ for (i = 0; i < 1000; i++) {
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ if ((ocp_data & FIFO_EMPTY) == FIFO_EMPTY)
+ break;
+ mdelay(1);
+ }
+
+ for (i = 0; i < 1000; i++) {
+ if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0) & TCR0_TX_EMPTY)
+ break;
+ mdelay(1);
+ }
+
+ usb_kill_urb(tp->rx_urb);
+
+ rtl8152_nic_reset(tp);
+}
+
+static void r8152b_exit_oob(struct r8152 *tp)
+{
+ u32 ocp_data;
+ int i;
+
+ ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
+ ocp_data &= ~RCR_ACPT_ALL;
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MISC_1);
+ ocp_data |= RXDY_GATED_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_MISC_1, ocp_data);
+
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, 0x00);
+
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ ocp_data &= ~NOW_IS_OOB;
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
+ ocp_data &= ~MCU_BORW_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
+
+ for (i = 0; i < 1000; i++) {
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ if (ocp_data & LINK_LIST_READY)
+ break;
+ mdelay(1);
+ }
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
+ ocp_data |= RE_INIT_LL;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
+
+ for (i = 0; i < 1000; i++) {
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ if (ocp_data & LINK_LIST_READY)
+ break;
+ mdelay(1);
+ }
+
+ rtl8152_nic_reset(tp);
+
+ /* rx share fifo credit full threshold */
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, RXFIFO_THR1_NORMAL);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_DEV_STAT);
+ ocp_data &= STAT_SPEED_MASK;
+ if (ocp_data == STAT_SPEED_FULL) {
+ /* rx share fifo credit near full threshold */
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1,
+ RXFIFO_THR2_FULL);
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2,
+ RXFIFO_THR3_FULL);
+ } else {
+ /* rx share fifo credit near full threshold */
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1,
+ RXFIFO_THR2_HIGH);
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2,
+ RXFIFO_THR3_HIGH);
+ }
+
+ /* TX share fifo free credit full threshold */
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_TXFIFO_CTRL, TXFIFO_THR_NORMAL);
+
+ ocp_write_byte(tp, MCU_TYPE_USB, USB_TX_AGG, TX_AGG_MAX_THRESHOLD);
+ ocp_write_dword(tp, MCU_TYPE_USB, USB_RX_BUF_TH, RX_BUF_THR);
+ ocp_write_dword(tp, MCU_TYPE_USB, USB_TX_DMA,
+ TEST_MODE_DISABLE | TX_SIZE_ADJUST1);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CPCR);
+ ocp_data &= ~CPCR_RX_VLAN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_CPCR, ocp_data);
+
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8152_RMS);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0);
+ ocp_data |= TCR0_AUTO_FIFO;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_TCR0, ocp_data);
+}
+
+static void r8152b_enter_oob(struct r8152 *tp)
+{
+ u32 ocp_data;
+ int i;
+
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ ocp_data &= ~NOW_IS_OOB;
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
+
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, RXFIFO_THR1_OOB);
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1, RXFIFO_THR2_OOB);
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2, RXFIFO_THR3_OOB);
+
+ rtl8152_disable(tp);
+
+ for (i = 0; i < 1000; i++) {
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ if (ocp_data & LINK_LIST_READY)
+ break;
+ mdelay(1);
+ }
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
+ ocp_data |= RE_INIT_LL;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
+
+ for (i = 0; i < 1000; i++) {
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ if (ocp_data & LINK_LIST_READY)
+ break;
+ mdelay(1);
+ }
+
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8152_RMS);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CFG_WOL);
+ ocp_data |= MAGIC_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_CFG_WOL, ocp_data);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CPCR);
+ ocp_data |= CPCR_RX_VLAN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_CPCR, ocp_data);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PAL_BDC_CR);
+ ocp_data |= ALDPS_PROXY_MODE;
+ ocp_write_word(tp, MCU_TYPE_PLA, PAL_BDC_CR, ocp_data);
+
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ ocp_data |= NOW_IS_OOB | DIS_MCU_CLROOB;
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
+
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CONFIG5, LAN_WAKE_EN);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MISC_1);
+ ocp_data &= ~RXDY_GATED_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_MISC_1, ocp_data);
+
+ ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
+ ocp_data |= RCR_APM | RCR_AM | RCR_AB;
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
+}
+
+static void r8152b_disable_aldps(struct r8152 *tp)
+{
+ ocp_reg_write(tp, OCP_ALDPS_CONFIG, ENPDNPS | LINKENA | DIS_SDSAVE);
+ msleep(20);
+}
+
+static inline void r8152b_enable_aldps(struct r8152 *tp)
+{
+ ocp_reg_write(tp, OCP_ALDPS_CONFIG, ENPWRSAVE | ENPDNPS |
+ LINKENA | DIS_SDSAVE);
+}
+
+static int rtl8152_set_speed(struct r8152 *tp, u8 autoneg, u16 speed, u8 duplex)
+{
+ u16 bmcr, anar;
+ int ret = 0;
+
+ cancel_delayed_work_sync(&tp->schedule);
+ anar = r8152_mdio_read(tp, MII_ADVERTISE);
+ anar &= ~(ADVERTISE_10HALF | ADVERTISE_10FULL |
+ ADVERTISE_100HALF | ADVERTISE_100FULL);
+
+ if (autoneg == AUTONEG_DISABLE) {
+ if (speed == SPEED_10) {
+ bmcr = 0;
+ anar |= ADVERTISE_10HALF | ADVERTISE_10FULL;
+ } else if (speed == SPEED_100) {
+ bmcr = BMCR_SPEED100;
+ anar |= ADVERTISE_100HALF | ADVERTISE_100FULL;
+ } else {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (duplex == DUPLEX_FULL)
+ bmcr |= BMCR_FULLDPLX;
+ } else {
+ if (speed == SPEED_10) {
+ if (duplex == DUPLEX_FULL)
+ anar |= ADVERTISE_10HALF | ADVERTISE_10FULL;
+ else
+ anar |= ADVERTISE_10HALF;
+ } else if (speed == SPEED_100) {
+ if (duplex == DUPLEX_FULL) {
+ anar |= ADVERTISE_10HALF | ADVERTISE_10FULL;
+ anar |= ADVERTISE_100HALF | ADVERTISE_100FULL;
+ } else {
+ anar |= ADVERTISE_10HALF;
+ anar |= ADVERTISE_100HALF;
+ }
+ } else {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ bmcr = BMCR_ANENABLE | BMCR_ANRESTART;
+ }
+
+ r8152_mdio_write(tp, MII_ADVERTISE, anar);
+ r8152_mdio_write(tp, MII_BMCR, bmcr);
+
+out:
+ schedule_delayed_work(&tp->schedule, 5 * HZ);
+
+ return ret;
+}
+
+static void rtl8152_down(struct r8152 *tp)
+{
+ u32 ocp_data;
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_UPS_CTRL);
+ ocp_data &= ~POWER_CUT;
+ ocp_write_word(tp, MCU_TYPE_USB, USB_UPS_CTRL, ocp_data);
+
+ r8152b_disable_aldps(tp);
+ r8152b_enter_oob(tp);
+ r8152b_enable_aldps(tp);
+}
+
+static void set_carrier(struct r8152 *tp)
+{
+ struct net_device *netdev = tp->netdev;
+ u8 speed;
+
+ speed = rtl8152_get_speed(tp);
+
+ if (speed & LINK_STATUS) {
+ if (!(tp->speed & LINK_STATUS)) {
+ rtl8152_enable(tp);
+ set_bit(RTL8152_SET_RX_MODE, &tp->flags);
+ netif_carrier_on(netdev);
+ }
+ } else {
+ if (tp->speed & LINK_STATUS) {
+ netif_carrier_off(netdev);
+ rtl8152_disable(tp);
+ }
+ }
+ tp->speed = speed;
+}
+
+static void rtl_work_func_t(struct work_struct *work)
+{
+ struct r8152 *tp = container_of(work, struct r8152, schedule.work);
+
+ if (!test_bit(WORK_ENABLE, &tp->flags))
+ goto out1;
+
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ goto out1;
+
+ set_carrier(tp);
+
+ if (test_bit(RTL8152_SET_RX_MODE, &tp->flags))
+ _rtl8152_set_rx_mode(tp->netdev);
+
+ schedule_delayed_work(&tp->schedule, HZ);
+
+out1:
+ return;
+}
+
+static int rtl8152_open(struct net_device *netdev)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+ int res = 0;
+
+ tp->speed = rtl8152_get_speed(tp);
+ if (tp->speed & LINK_STATUS) {
+ res = rtl8152_enable(tp);
+ if (res) {
+ if (res == -ENODEV)
+ netif_device_detach(tp->netdev);
+
+ netif_err(tp, ifup, netdev,
+ "rtl8152_open failed: %d\n", res);
+ return res;
+ }
+
+ netif_carrier_on(netdev);
+ } else {
+ netif_stop_queue(netdev);
+ netif_carrier_off(netdev);
+ }
+
+ rtl8152_set_speed(tp, AUTONEG_ENABLE, SPEED_100, DUPLEX_FULL);
+ netif_start_queue(netdev);
+ set_bit(WORK_ENABLE, &tp->flags);
+ schedule_delayed_work(&tp->schedule, 0);
+
+ return res;
+}
+
+static int rtl8152_close(struct net_device *netdev)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+ int res = 0;
+
+ clear_bit(WORK_ENABLE, &tp->flags);
+ cancel_delayed_work_sync(&tp->schedule);
+ netif_stop_queue(netdev);
+ rtl8152_disable(tp);
+
+ return res;
+}
+
+static void rtl_clear_bp(struct r8152 *tp)
+{
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_BP_0, 0);
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_BP_2, 0);
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_BP_4, 0);
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_BP_6, 0);
+ ocp_write_dword(tp, MCU_TYPE_USB, USB_BP_0, 0);
+ ocp_write_dword(tp, MCU_TYPE_USB, USB_BP_2, 0);
+ ocp_write_dword(tp, MCU_TYPE_USB, USB_BP_4, 0);
+ ocp_write_dword(tp, MCU_TYPE_USB, USB_BP_6, 0);
+ mdelay(3);
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_BP_BA, 0);
+ ocp_write_word(tp, MCU_TYPE_USB, USB_BP_BA, 0);
+}
+
+static void r8152b_enable_eee(struct r8152 *tp)
+{
+ u32 ocp_data;
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR);
+ ocp_data |= EEE_RX_EN | EEE_TX_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEE_CR, ocp_data);
+ ocp_reg_write(tp, OCP_EEE_CONFIG1, RG_TXLPI_MSK_HFDUP | RG_MATCLR_EN |
+ EEE_10_CAP | EEE_NWAY_EN |
+ TX_QUIET_EN | RX_QUIET_EN |
+ SDRISETIME | RG_RXLPI_MSK_HFDUP |
+ SDFALLTIME);
+ ocp_reg_write(tp, OCP_EEE_CONFIG2, RG_LPIHYS_NUM | RG_DACQUIET_EN |
+ RG_LDVQUIET_EN | RG_CKRSEL |
+ RG_EEEPRG_EN);
+ ocp_reg_write(tp, OCP_EEE_CONFIG3, FST_SNR_EYE_R | RG_LFS_SEL | MSK_PH);
+ ocp_reg_write(tp, OCP_EEE_AR, FUN_ADDR | DEVICE_ADDR);
+ ocp_reg_write(tp, OCP_EEE_DATA, EEE_ADDR);
+ ocp_reg_write(tp, OCP_EEE_AR, FUN_DATA | DEVICE_ADDR);
+ ocp_reg_write(tp, OCP_EEE_DATA, EEE_DATA);
+ ocp_reg_write(tp, OCP_EEE_AR, 0x0000);
+}
+
+static void r8152b_enable_fc(struct r8152 *tp)
+{
+ u16 anar;
+
+ anar = r8152_mdio_read(tp, MII_ADVERTISE);
+ anar |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
+ r8152_mdio_write(tp, MII_ADVERTISE, anar);
+}
+
+static void r8152b_hw_phy_cfg(struct r8152 *tp)
+{
+ r8152_mdio_write(tp, MII_BMCR, BMCR_ANENABLE);
+ r8152b_disable_aldps(tp);
+}
+
+static void r8152b_init(struct r8152 *tp)
+{
+ u32 ocp_data;
+ int i;
+
+ rtl_clear_bp(tp);
+
+ if (tp->version == RTL_VER_01) {
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE);
+ ocp_data &= ~LED_MODE_MASK;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE, ocp_data);
+ }
+
+ r8152b_hw_phy_cfg(tp);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_UPS_CTRL);
+ ocp_data &= ~POWER_CUT;
+ ocp_write_word(tp, MCU_TYPE_USB, USB_UPS_CTRL, ocp_data);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_PM_CTRL_STATUS);
+ ocp_data &= ~RWSUME_INDICATE;
+ ocp_write_word(tp, MCU_TYPE_USB, USB_PM_CTRL_STATUS, ocp_data);
+
+ r8152b_exit_oob(tp);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR);
+ ocp_data |= TX_10M_IDLE_EN | PFM_PWM_SWITCH;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR, ocp_data);
+ ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL);
+ ocp_data &= ~MCU_CLK_RATIO_MASK;
+ ocp_data |= MCU_CLK_RATIO | D3_CLK_GATED_EN;
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL, ocp_data);
+ ocp_data = GPHY_STS_MSK | SPEED_DOWN_MSK |
+ SPDWN_RXDV_MSK | SPDWN_LINKCHG_MSK;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_GPHY_INTR_IMR, ocp_data);
+
+ r8152b_enable_eee(tp);
+ r8152b_enable_aldps(tp);
+ r8152b_enable_fc(tp);
+
+ r8152_mdio_write(tp, MII_BMCR, BMCR_RESET | BMCR_ANENABLE |
+ BMCR_ANRESTART);
+ for (i = 0; i < 100; i++) {
+ udelay(100);
+ if (!(r8152_mdio_read(tp, MII_BMCR) & BMCR_RESET))
+ break;
+ }
+
+ /* disable rx aggregation */
+ ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL);
+ ocp_data |= RX_AGG_DISABLE;
+ ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data);
+}
+
+static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct r8152 *tp = usb_get_intfdata(intf);
+
+ netif_device_detach(tp->netdev);
+
+ if (netif_running(tp->netdev)) {
+ clear_bit(WORK_ENABLE, &tp->flags);
+ cancel_delayed_work_sync(&tp->schedule);
+ }
+
+ rtl8152_down(tp);
+
+ return 0;
+}
+
+static int rtl8152_resume(struct usb_interface *intf)
+{
+ struct r8152 *tp = usb_get_intfdata(intf);
+
+ r8152b_init(tp);
+ netif_device_attach(tp->netdev);
+ if (netif_running(tp->netdev)) {
+ rtl8152_enable(tp);
+ set_bit(WORK_ENABLE, &tp->flags);
+ set_bit(RTL8152_SET_RX_MODE, &tp->flags);
+ schedule_delayed_work(&tp->schedule, 0);
+ }
+
+ return 0;
+}
+
+static void rtl8152_get_drvinfo(struct net_device *netdev,
+ struct ethtool_drvinfo *info)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+
+ strncpy(info->driver, MODULENAME, ETHTOOL_BUSINFO_LEN);
+ strncpy(info->version, DRIVER_VERSION, ETHTOOL_BUSINFO_LEN);
+ usb_make_path(tp->udev, info->bus_info, sizeof(info->bus_info));
+}
+
+static
+int rtl8152_get_settings(struct net_device *netdev, struct ethtool_cmd *cmd)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+
+ if (!tp->mii.mdio_read)
+ return -EOPNOTSUPP;
+
+ return mii_ethtool_gset(&tp->mii, cmd);
+}
+
+static int rtl8152_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct r8152 *tp = netdev_priv(dev);
+
+ return rtl8152_set_speed(tp, cmd->autoneg, cmd->speed, cmd->duplex);
+}
+
+static struct ethtool_ops ops = {
+ .get_drvinfo = rtl8152_get_drvinfo,
+ .get_settings = rtl8152_get_settings,
+ .set_settings = rtl8152_set_settings,
+ .get_link = ethtool_op_get_link,
+};
+
+static int rtl8152_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+ struct mii_ioctl_data *data = if_mii(rq);
+ int res = 0;
+
+ switch (cmd) {
+ case SIOCGMIIPHY:
+ data->phy_id = R8152_PHY_ID; /* Internal PHY */
+ break;
+
+ case SIOCGMIIREG:
+ data->val_out = r8152_mdio_read(tp, data->reg_num);
+ break;
+
+ case SIOCSMIIREG:
+ if (!capable(CAP_NET_ADMIN)) {
+ res = -EPERM;
+ break;
+ }
+ r8152_mdio_write(tp, data->reg_num, data->val_in);
+ break;
+
+ default:
+ res = -EOPNOTSUPP;
+ }
+
+ return res;
+}
+
+static const struct net_device_ops rtl8152_netdev_ops = {
+ .ndo_open = rtl8152_open,
+ .ndo_stop = rtl8152_close,
+ .ndo_do_ioctl = rtl8152_ioctl,
+ .ndo_start_xmit = rtl8152_start_xmit,
+ .ndo_tx_timeout = rtl8152_tx_timeout,
+ .ndo_set_rx_mode = rtl8152_set_rx_mode,
+ .ndo_set_mac_address = rtl8152_set_mac_address,
+
+ .ndo_change_mtu = eth_change_mtu,
+ .ndo_validate_addr = eth_validate_addr,
+};
+
+static void r8152b_get_version(struct r8152 *tp)
+{
+ u32 ocp_data;
+ u16 version;
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR1);
+ version = (u16)(ocp_data & VERSION_MASK);
+
+ switch (version) {
+ case 0x4c00:
+ tp->version = RTL_VER_01;
+ break;
+ case 0x4c10:
+ tp->version = RTL_VER_02;
+ break;
+ default:
+ netif_info(tp, probe, tp->netdev,
+ "Unknown version 0x%04x\n", version);
+ break;
+ }
+}
+
+static int rtl8152_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev(intf);
+ struct r8152 *tp;
+ struct net_device *netdev;
+
+ if (udev->actconfig->desc.bConfigurationValue != 1) {
+ usb_driver_set_configuration(udev, 1);
+ return -ENODEV;
+ }
+
+ netdev = alloc_etherdev(sizeof(struct r8152));
+ if (!netdev) {
+ dev_err(&intf->dev, "Out of memory");
+ return -ENOMEM;
+ }
+
+ tp = netdev_priv(netdev);
+ tp->msg_enable = 0x7FFF;
+
+ tasklet_init(&tp->tl, rx_fixup, (unsigned long)tp);
+ INIT_DELAYED_WORK(&tp->schedule, rtl_work_func_t);
+
+ tp->udev = udev;
+ tp->netdev = netdev;
+ netdev->netdev_ops = &rtl8152_netdev_ops;
+ netdev->watchdog_timeo = RTL8152_TX_TIMEOUT;
+ netdev->features &= ~NETIF_F_IP_CSUM;
+ SET_ETHTOOL_OPS(netdev, &ops);
+ tp->speed = 0;
+
+ tp->mii.dev = netdev;
+ tp->mii.mdio_read = read_mii_word;
+ tp->mii.mdio_write = write_mii_word;
+ tp->mii.phy_id_mask = 0x3f;
+ tp->mii.reg_num_mask = 0x1f;
+ tp->mii.phy_id = R8152_PHY_ID;
+ tp->mii.supports_gmii = 0;
+
+ r8152b_get_version(tp);
+ r8152b_init(tp);
+ set_ethernet_addr(tp);
+
+ if (!alloc_all_urbs(tp)) {
+ netif_err(tp, probe, netdev, "out of memory");
+ goto out;
+ }
+
+ tp->rx_skb = netdev_alloc_skb(netdev,
+ RTL8152_RMS + sizeof(struct rx_desc));
+ if (!tp->rx_skb)
+ goto out1;
+
+ usb_set_intfdata(intf, tp);
+ SET_NETDEV_DEV(netdev, &intf->dev);
+
+
+ if (register_netdev(netdev) != 0) {
+ netif_err(tp, probe, netdev, "couldn't register the device");
+ goto out2;
+ }
+
+ netif_info(tp, probe, netdev, "%s", DRIVER_VERSION);
+
+ return 0;
+
+out2:
+ usb_set_intfdata(intf, NULL);
+ dev_kfree_skb(tp->rx_skb);
+out1:
+ free_all_urbs(tp);
+out:
+ free_netdev(netdev);
+ return -EIO;
+}
+
+static void rtl8152_unload(struct r8152 *tp)
+{
+ u32 ocp_data;
+
+ if (tp->version != RTL_VER_01) {
+ ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_UPS_CTRL);
+ ocp_data |= POWER_CUT;
+ ocp_write_word(tp, MCU_TYPE_USB, USB_UPS_CTRL, ocp_data);
+ }
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_PM_CTRL_STATUS);
+ ocp_data &= ~RWSUME_INDICATE;
+ ocp_write_word(tp, MCU_TYPE_USB, USB_PM_CTRL_STATUS, ocp_data);
+}
+
+static void rtl8152_disconnect(struct usb_interface *intf)
+{
+ struct r8152 *tp = usb_get_intfdata(intf);
+
+ usb_set_intfdata(intf, NULL);
+ if (tp) {
+ set_bit(RTL8152_UNPLUG, &tp->flags);
+ tasklet_kill(&tp->tl);
+ unregister_netdev(tp->netdev);
+ rtl8152_unload(tp);
+ free_all_urbs(tp);
+ if (tp->rx_skb)
+ dev_kfree_skb(tp->rx_skb);
+ free_netdev(tp->netdev);
+ }
+}
+
+/* table of devices that work with this driver */
+static struct usb_device_id rtl8152_table[] = {
+ {USB_DEVICE(VENDOR_ID_REALTEK, PRODUCT_ID_RTL8152)},
+ {}
+};
+
+MODULE_DEVICE_TABLE(usb, rtl8152_table);
+
+static struct usb_driver rtl8152_driver = {
+ .name = MODULENAME,
+ .probe = rtl8152_probe,
+ .disconnect = rtl8152_disconnect,
+ .id_table = rtl8152_table,
+ .suspend = rtl8152_suspend,
+ .resume = rtl8152_resume
+};
+
+static int __init usb_rtl8152_init(void)
+{
+ return usb_register(&rtl8152_driver);
+}
+
+static void __exit usb_rtl8152_exit(void)
+{
+ usb_deregister(&rtl8152_driver);
+}
+
+module_init(usb_rtl8152_init);
+module_exit(usb_rtl8152_exit);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
projects / GitHub / LineageOS / android_kernel_samsung_universal7580.git / commitdiff