GitHub/LineageOS/android_kernel_samsung_universal7580.git
13 years agomac80211: add support for showing the last rx bitrate
Felix Fietkau [Sun, 27 Feb 2011 21:08:01 +0000 (22:08 +0100)]
mac80211: add support for showing the last rx bitrate

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agocfg80211: add a field for the bitrate of the last rx data packet from a station
Felix Fietkau [Sun, 27 Feb 2011 21:08:00 +0000 (22:08 +0100)]
cfg80211: add a field for the bitrate of the last rx data packet from a station

Also fix a typo in the STATION_INFO_TX_BITRATE description

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k_htc: Handle BSSID/AID for multiple interfaces
Sujith Manoharan [Sun, 27 Feb 2011 03:50:40 +0000 (09:20 +0530)]
ath9k_htc: Handle BSSID/AID for multiple interfaces

The AID and BSSID should be set in the HW only for the
first station interface or adhoc interface. Also, cancel
the ANI timer in stop() for multi-STA scenario. And finally
configure the HW beacon timers only for the first station
interface.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoiwlwifi: move remaining iwl-agn-rx.c code into iwl-rx.c
Stanislaw Gruszka [Mon, 28 Feb 2011 13:33:17 +0000 (14:33 +0100)]
iwlwifi: move remaining iwl-agn-rx.c code into iwl-rx.c

There is no need to have separate iwl-agn-rx.c file after iwlegacy
split.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoiwlwifi: move check health code into iwl-rx.c
Stanislaw Gruszka [Mon, 28 Feb 2011 13:33:16 +0000 (14:33 +0100)]
iwlwifi: move check health code into iwl-rx.c

Remove check_plcp_health and check_ack_health ops methods, they are
unneeded after iwlegacy driver split. Merge check health code into to
iwl-rx.c and make functions static.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoiwlwifi: add {ack,plpc}_check module parameters
Stanislaw Gruszka [Mon, 28 Feb 2011 13:33:15 +0000 (14:33 +0100)]
iwlwifi: add {ack,plpc}_check module parameters

Add module ack_check, and plcp_check parameters. Ack_check is disabled
by default since is proved that check ack health can cause troubles.
Plcp_check is enabled by default.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoiwlegacy: fix dma mappings and skbs leak
Stanislaw Gruszka [Mon, 28 Feb 2011 13:33:14 +0000 (14:33 +0100)]
iwlegacy: fix dma mappings and skbs leak

Fix possible dma mappings and skbs introduced by commit
470058e0ad82fcfaaffd57307d8bf8c094e8e9d7 "iwlwifi: avoid Tx queue
memory allocation in interface down".

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoiwlwifi: fix dma mappings and skbs leak
Stanislaw Gruszka [Mon, 28 Feb 2011 13:33:13 +0000 (14:33 +0100)]
iwlwifi: fix dma mappings and skbs leak

Since commit commit 470058e0ad82fcfaaffd57307d8bf8c094e8e9d7
"iwlwifi: avoid Tx queue memory allocation in interface down" we do
not unmap dma and free skbs when down device and there is pending
transfer. What in consequence may cause that system hung (waiting
for free skb's) when performing shutdown at iptables module unload.

DMA leak manifest itself following warning:

WARNING: at lib/dma-debug.c:689 dma_debug_device_change+0x15a/0x1b0()
Hardware name: HP xw8600 Workstation
pci 0000:80:00.0: DMA-API: device driver has pending DMA allocations while released from device [count=240]
Modules linked in: iwlagn(-) aes_x86_64 aes_generic fuse cpufreq_ondemand acpi_cpufreq freq_table mperf xt_physdev ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 iptable_filter ip_tables ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables ipv6 ext3 jbd dm_mirror dm_region_hash dm_log dm_mod uinput hp_wmi sparse_keymap sg wmi microcode serio_raw tg3 arc4 ecb shpchp mac80211 cfg80211 rfkill ext4 mbcache jbd2 sr_mod cdrom sd_mod crc_t10dif firewire_ohci firewire_core crc_itu_t mptsas mptscsih mptbase scsi_transport_sas pata_acpi ata_generic ata_piix ahci libahci floppy nouveau ttm drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: iwlagn]
Pid: 9131, comm: rmmod Tainted: G        W   2.6.38-rc6-wl+ #33
Call Trace:
 [<ffffffff810649ef>] ? warn_slowpath_common+0x7f/0xc0
 [<ffffffff81064ae6>] ? warn_slowpath_fmt+0x46/0x50
 [<ffffffff812320ab>] ? dma_debug_device_change+0xdb/0x1b0
 [<ffffffff8123212a>] ? dma_debug_device_change+0x15a/0x1b0
 [<ffffffff8149dc18>] ? notifier_call_chain+0x58/0xb0
 [<ffffffff8108e370>] ? __blocking_notifier_call_chain+0x60/0x90
 [<ffffffff8108e3b6>] ? blocking_notifier_call_chain+0x16/0x20
 [<ffffffff812f570c>] ? __device_release_driver+0xbc/0xe0
 [<ffffffff812f5808>] ? driver_detach+0xd8/0xe0
 [<ffffffff812f45d1>] ? bus_remove_driver+0x91/0x100
 [<ffffffff812f6022>] ? driver_unregister+0x62/0xa0
 [<ffffffff8123d5d4>] ? pci_unregister_driver+0x44/0xa0
 [<ffffffffa05632d1>] ? iwl_exit+0x15/0x1c [iwlagn]
 [<ffffffff810ab492>] ? sys_delete_module+0x1a2/0x270
 [<ffffffff81498da9>] ? trace_hardirqs_on_thunk+0x3a/0x3f
 [<ffffffff8100bf42>] ? system_call_fastpath+0x16/0x1b

I still can observe above warning after apply patch, but it is very
hard to reproduce it, and have count=1. Whereas that one is easy to
reproduce using debugfs force_reset while transmitting data, and have
very big counts eg. 240, like quoted here. So count=1 WARNING seems
to be different issue that need to be resolved separately.

v1 -> v2: fix infinity loop bug I made during "for" to "while" loop transition.
v2 -> v3: remove unneeded EXPORT_SYMBOL

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k: Fix incorrect GPIO LED pin for AR9485
Senthil Balasubramanian [Mon, 28 Feb 2011 09:46:47 +0000 (15:16 +0530)]
ath9k: Fix incorrect GPIO LED pin for AR9485

AR9485 doesn't use the default GPIO pin for LED and GPIO 6 is actually
used for this.

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k: use generic mac80211 LED blinking code
Felix Fietkau [Sun, 27 Feb 2011 21:26:40 +0000 (22:26 +0100)]
ath9k: use generic mac80211 LED blinking code

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agop54: fix a NULL pointer dereference bug
Felix Fietkau [Sun, 27 Feb 2011 21:19:22 +0000 (22:19 +0100)]
p54: fix a NULL pointer dereference bug

If the RSSI calibration table was not found or not parsed properly,
priv->rssi_db will be NULL, p54_rssi_find needs to be able to deal
with that.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agortlwifi: fix places where uninitialized data is used
Alessio Igor Bogani [Mon, 28 Feb 2011 08:11:55 +0000 (09:11 +0100)]
rtlwifi: fix places where uninitialized data is used

drivers/net/wireless/rtlwifi/rtl8192ce/trx.c: In function ‘rtl92ce_rx_query_desc’:
drivers/net/wireless/rtlwifi/rtl8192ce/trx.c:255:5: warning: ‘rf_rx_num’ may be used uninitialized in this function
drivers/net/wireless/rtlwifi/rtl8192ce/trx.c:257:12: warning: ‘total_rssi’ may be used uninitialized in this function
drivers/net/wireless/rtlwifi/rtl8192ce/trx.c:466:6: warning: ‘weighting’ may be used uninitialized in this function

This work was supported by a hardware donation from the CE Linux Forum.

Signed-off-by: Alessio Igor Bogani <abogani@kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agortlwifi: Add the missing rcu_read_lock/unlock
Alessio Igor Bogani [Mon, 28 Feb 2011 17:46:44 +0000 (18:46 +0100)]
rtlwifi: Add the missing rcu_read_lock/unlock

===================================================
[ INFO: suspicious rcu_dereference_check() usage. ]
---------------------------------------------------
net/mac80211/sta_info.c:125 invoked rcu_dereference_check() without protection!

other info that might help us debug this:

rcu_scheduler_active = 1, debug_locks = 0
5 locks held by wpa_supplicant/468:
 #0:  (rtnl_mutex){+.+.+.}, at: [<c1465d84>] rtnl_lock+0x14/0x20
 #1:  (&rdev->mtx){+.+.+.}, at: [<f84b8c2b>] cfg80211_mgd_wext_siwfreq+0x6b/0x170 [cfg80211]
 #2:  (&rdev->devlist_mtx){+.+.+.}, at: [<f84b8c37>] cfg80211_mgd_wext_siwfreq+0x77/0x170 [cfg80211]
 #3:  (&wdev->mtx){+.+.+.}, at: [<f84b8c44>] cfg80211_mgd_wext_siwfreq+0x84/0x170 [cfg80211]
 #4:  (&rtlpriv->locks.conf_mutex){+.+.+.}, at: [<f8506476>] rtl_op_bss_info_changed+0x26/0xc10 [rtlwifi]

stack backtrace:
Pid: 468, comm: wpa_supplicant Not tainted 2.6.38-rc6+ #79
Call Trace:
 [<c108806a>] ? lockdep_rcu_dereference+0xaa/0xb0
 [<f8523d2c>] ? sta_info_get_bss+0x19c/0x1b0 [mac80211]
 [<f8523d62>] ? ieee80211_find_sta+0x22/0x40 [mac80211]
 [<f850661c>] ? rtl_op_bss_info_changed+0x1cc/0xc10 [rtlwifi]
 [<c153671c>] ? __mutex_unlock_slowpath+0x14c/0x160
 [<c153673d>] ? mutex_unlock+0xd/0x10
 [<f8507180>] ? rtl_op_config+0x120/0x310 [rtlwifi]
 [<c10896db>] ? trace_hardirqs_on+0xb/0x10
 [<f8522169>] ? ieee80211_bss_info_change_notify+0xf9/0x1f0 [mac80211]
 [<f8506450>] ? rtl_op_bss_info_changed+0x0/0xc10 [rtlwifi]
 [<f853646f>] ? ieee80211_set_channel+0xbf/0xd0 [mac80211]
 [<f84b5f41>] ? cfg80211_set_freq+0x121/0x180 [cfg80211]
 [<f85363b0>] ? ieee80211_set_channel+0x0/0xd0 [mac80211]
 [<f84b8ceb>] ? cfg80211_mgd_wext_siwfreq+0x12b/0x170 [cfg80211]
 [<f84b87eb>] ? cfg80211_wext_siwfreq+0x9b/0x100 [cfg80211]
 [<c153b98b>] ? sub_preempt_count+0x7b/0xb0
 [<c150f874>] ? ioctl_standard_call+0x74/0x3b0
 [<c1465d84>] ? rtnl_lock+0x14/0x20
 [<f84b8750>] ? cfg80211_wext_siwfreq+0x0/0x100 [cfg80211]
 [<c14568bd>] ? __dev_get_by_name+0x8d/0xb0
 [<c150fddb>] ? wext_handle_ioctl+0x16b/0x180
 [<f84b8750>] ? cfg80211_wext_siwfreq+0x0/0x100 [cfg80211]
 [<c145bc7a>] ? dev_ioctl+0x5ba/0x720
 [<c108a947>] ? __lock_acquire+0x3e7/0x19b0
 [<c1443b0b>] ? sock_ioctl+0x1eb/0x290
 [<c108bfa5>] ? lock_release_non_nested+0x95/0x2f0
 [<c1443920>] ? sock_ioctl+0x0/0x290
 [<c114d74d>] ? do_vfs_ioctl+0x7d/0x5c0
 [<c1112232>] ? might_fault+0x62/0xb0
 [<c113e3c6>] ? fget_light+0x226/0x390
 [<c1112278>] ? might_fault+0xa8/0xb0
 [<c114dd17>] ? sys_ioctl+0x87/0x90
 [<c1002f9f>] ? sysenter_do_call+0x12/0x38

This work was supported by a hardware donation from the CE Linux Forum.

Signed-off-by: Alessio Igor Bogani <abogani@kernel.org>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoiwlwifi: remove duplicate initialization
Dan Carpenter [Sat, 26 Feb 2011 01:56:53 +0000 (04:56 +0300)]
iwlwifi: remove duplicate initialization

rate_mask is initialized again later so this can be removed.  Btw, if
rate_control_send_low(sta, priv_sta, txrc) returns false, that means
that "sta" is non-NULL.  That's why the second initialization of
rate_mask is a little simpler than the first.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoBluetooth: Fix BT_L2CAP and BT_SCO in Kconfig
Gustavo F. Padovan [Sat, 26 Feb 2011 01:41:25 +0000 (22:41 -0300)]
Bluetooth: Fix BT_L2CAP and BT_SCO in Kconfig

If we want something "bool" built-in in something "tristate" it can't
"depend on" the tristate config option.

Report by DaveM:

   I give it 'y' just to make it happen, for both, and afterways no
   matter how many times I rerun "make oldconfig" I keep seeing things
   like this in my build:

scripts/kconfig/conf --silentoldconfig Kconfig
include/config/auto.conf:986:warning: symbol value 'm' invalid for BT_SCO
include/config/auto.conf:3156:warning: symbol value 'm' invalid for BT_L2CAP

Reported-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoMerge branch 'wireless-next-2.6' of git://git.kernel.org/pub/scm/linux/kernel/git...
John W. Linville [Mon, 28 Feb 2011 19:05:38 +0000 (14:05 -0500)]
Merge branch 'wireless-next-2.6' of git://git./linux/kernel/git/iwlwifi/iwlwifi-2.6

13 years agoat76c50x-usb: fix warning caused by at76_mac80211_tx now returning void
John W. Linville [Fri, 25 Feb 2011 20:38:09 +0000 (15:38 -0500)]
at76c50x-usb: fix warning caused by at76_mac80211_tx now returning void

  CC [M]  drivers/net/wireless/at76c50x-usb.o
drivers/net/wireless/at76c50x-usb.c: In function ‘at76_mac80211_tx’:
drivers/net/wireless/at76c50x-usb.c:1759:4: warning: ‘return’ with a value, in function returning void

This is fallout from commit 7bb4568372856688bc070917265bce0b88bb7d4d
("mac80211: make tx() operation return void").

Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoiwlagn: enable BT session 2 type UART for 2000 series
Wey-Yi Guy [Sat, 19 Feb 2011 01:23:54 +0000 (17:23 -0800)]
iwlagn: enable BT session 2 type UART for 2000 series

For 2000 series device, use session 2 type of BT UART message

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
13 years agoiwlagn: split BT page and inquiry UART msg
Wey-Yi Guy [Tue, 22 Feb 2011 16:24:22 +0000 (08:24 -0800)]
iwlagn: split BT page and inquiry UART msg

Both inquiry and page was combine in frame7 of UART message, separate it

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
13 years agoiwlagn: add BT Session Activity 2 UART message (BT -> WiFi)
Wey-Yi Guy [Sat, 19 Feb 2011 01:23:52 +0000 (17:23 -0800)]
iwlagn: add BT Session Activity 2 UART message (BT -> WiFi)

additional UART message defines

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
13 years agoiwlagn: add bt config structure support for 2000 series
Wey-Yi Guy [Sat, 19 Feb 2011 01:23:51 +0000 (17:23 -0800)]
iwlagn: add bt config structure support for 2000 series

2000 series has different bt config command structure, add support for it

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
13 years agoiwlagn: name change for BT config command
Wey-Yi Guy [Sat, 19 Feb 2011 01:23:50 +0000 (17:23 -0800)]
iwlagn: name change for BT config command

No functional changes, name changes to reflect the structure used by
6000 series.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
13 years agoiwlegacy: change some symbols duplicated from iwlwifi directory
John W. Linville [Fri, 25 Feb 2011 20:51:01 +0000 (15:51 -0500)]
iwlegacy: change some symbols duplicated from iwlwifi directory

drivers/net/wireless/iwlegacy/built-in.o:(.rodata+0x29f0): multiple definition of `iwl_rates'
drivers/net/wireless/iwlwifi/built-in.o:(.rodata+0xa68): first defined here
powerpc64-linux-ld: Warning: size of symbol `iwl_rates' changed from 143 in drivers/net/wireless/iwlwifi/built-in.o to 130 in drivers/net/wireless/iwlegacy/built-in.o
drivers/net/wireless/iwlegacy/built-in.o:(.data+0x0): multiple definition of `bt_coex_active'
drivers/net/wireless/iwlwifi/built-in.o:(.data+0x668): first defined here
drivers/net/wireless/iwlegacy/built-in.o:(.rodata+0x750): multiple definition of `iwl_eeprom_band_1'
drivers/net/wireless/iwlwifi/built-in.o:(.rodata+0x27d0): first defined here
drivers/net/wireless/iwlegacy/built-in.o:(.rodata+0x3f0): multiple definition of `iwl_bcast_addr'
drivers/net/wireless/iwlwifi/built-in.o:(.rodata+0x24f8): first defined here
drivers/net/wireless/iwlegacy/built-in.o:(.bss+0x3d48): multiple definition of `iwl_debug_level'
drivers/net/wireless/iwlwifi/built-in.o:(.bss+0x21950): first defined here

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agomac80211: support direct offchannel TX offload
Johannes Berg [Fri, 25 Feb 2011 14:36:57 +0000 (15:36 +0100)]
mac80211: support direct offchannel TX offload

For devices supported by iwlwifi sometimes
off-channel transmissions need to be handled
by the device completely. To support this
mac80211 needs to pass the frame directly
to the driver and not through the TX path
as the driver needs the frame and channel
information at the same time.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agomac80211: better fix for conn_mon_timer running after disassociate
Stanislaw Gruszka [Fri, 25 Feb 2011 13:46:02 +0000 (14:46 +0100)]
mac80211: better fix for conn_mon_timer running after disassociate

Is still possible to schedule conn_mon_timer after disassociate from
ieee80211_sta_tx_notify() and ieee80211_offchannel_ps_disable().

Move disassociate check to ieee80211_sta_reset_conn_monitor() to cover
all these cases, and add unlikely since in most the time we call
ieee80211_sta_reset_conn_monitor() when associated.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k: Fix compilation warning.
Vivek Natarajan [Fri, 25 Feb 2011 12:01:03 +0000 (17:31 +0530)]
ath9k: Fix compilation warning.

Initialize txq to avoid this warning:

drivers/net/wireless/ath/ath9k/main.c: In function ‘ath9k_flush’:
drivers/net/wireless/ath/ath9k/main.c:2138: warning: ‘txq’ may be used uninitialized in this function

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k: Cancel pll_work while disabling radio.
Vivek Natarajan [Fri, 25 Feb 2011 12:01:02 +0000 (17:31 +0530)]
ath9k: Cancel pll_work while disabling radio.

pll_work should be cancelled on full_sleep or it may cause
redundant chip reset.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k_hw: Fix pcie_serdes setting for AR9485 1.1 version.
Vivek Natarajan [Fri, 25 Feb 2011 12:01:01 +0000 (17:31 +0530)]
ath9k_hw: Fix pcie_serdes setting for AR9485 1.1 version.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agob43: fill PHY ctl word1 in TX header for N-PHY
Rafał Miłecki [Fri, 25 Feb 2011 11:34:11 +0000 (12:34 +0100)]
b43: fill PHY ctl word1 in TX header for N-PHY

This patch fixes tramissing on OFDM rates for PHYs 1 and 2. There is
still something wrong with PHYs 3+. Tests has shown decreasing of
performance on CCK rates by 1-2%, we have to live with that.
Additionaly this noticeably reduces amount of PHY errors. They were
mostly produced by auto-switching to higher rate for better
performanced, which resulted in no transmit at all and PHY errors.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoiwlagn: fix iwlagn_check_needed_chains
Johannes Berg [Fri, 25 Feb 2011 11:24:11 +0000 (12:24 +0100)]
iwlagn: fix iwlagn_check_needed_chains

This function was intended to calculate the
number of RX chains needed, but could only
work where the AP's streams were asymmetric,
i.e. 2 TX and 3 RX or similar. In the case
where IEEE80211_HT_MCS_TX_RX_DIFF was not
set, this function would calculate the wrong
information.

Additionally, mac80211 didn't pass through
the required values at all, so it couldn't
work anyway.

Rewrite the logic in this function and add
appropriate comments to make it readable.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agomac80211: copy peer MCS TX parameters
Johannes Berg [Fri, 25 Feb 2011 11:24:10 +0000 (12:24 +0100)]
mac80211: copy peer MCS TX parameters

We need to copy this to allow drivers to look
at the information where needed.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoorinoco: Drop scan results with unknown channels
Joe Gunn [Fri, 25 Feb 2011 10:08:49 +0000 (02:08 -0800)]
orinoco: Drop scan results with unknown channels

If the frequency can not be mapped to a channel structure log it and drop it.

Signed-off-by: Joseph J. Gunn <armadefuego@yahoo.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agomac80211: remove IBSS merge delay
Johannes Berg [Thu, 24 Feb 2011 13:46:13 +0000 (14:46 +0100)]
mac80211: remove IBSS merge delay

This reverts 4a332a38
("mac80211: Give it some time to do the TSF sync").

There's no point in waiting with a new IBSS merge
just because the hardware hasn't merged up with
the old IBSS yet, and since 34e8f082 we no longer
attempt to merge with the IBSS we're already in.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agomac80211: make tx() operation return void
Johannes Berg [Thu, 24 Feb 2011 13:42:06 +0000 (14:42 +0100)]
mac80211: make tx() operation return void

The return value of the tx operation is commonly
misused by drivers, leading to errors. All drivers
will drop frames if they fail to TX the frame, and
they must also properly manage the queues (if they
didn't, mac80211 would already warn).

Removing the ability for drivers to return a BUSY
value also allows significant cleanups of the TX
TX handling code in mac80211.

Note that this also fixes a bug in ath9k_htc, the
old "return -1" there was wrong.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Tested-by: Sedat Dilek <sedat.dilek@googlemail.com> [ath5k]
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> [rt2x00]
Acked-by: Larry Finger <Larry.Finger@lwfinger.net> [b43, rtl8187, rtlwifi]
Acked-by: Luciano Coelho <coelho@ti.com> [wl12xx]
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoiwlegacy: do not set tx power when channel is changing
Stanislaw Gruszka [Thu, 24 Feb 2011 13:23:55 +0000 (14:23 +0100)]
iwlegacy: do not set tx power when channel is changing

Same fix as f844a709a7d8f8be61a571afc31dfaca9e779621
"iwlwifi: do not set tx power when channel is changing".

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agop54: implement set_coverage_class
Christian Lamparter [Thu, 24 Feb 2011 13:12:20 +0000 (14:12 +0100)]
p54: implement set_coverage_class

The callback sets slot time as specified in IEEE 802.11-2007
section 17.3.8.6 and raises round trip delay accordingly.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agortl8192c: fix compilation errors
Johannes Berg [Thu, 24 Feb 2011 19:39:05 +0000 (20:39 +0100)]
rtl8192c: fix compilation errors

On my G5 this fails to compile with

drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c:701: error: __ksymtab__rtl92c_phy_txpwr_idx_to_dbm causes a section type conflict
drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c:701: error: __ksymtab__rtl92c_phy_txpwr_idx_to_dbm causes a section type conflict
drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c:677: error: __ksymtab__rtl92c_phy_dbm_to_txpwr_Idx causes a section type conflict
drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c:677: error: __ksymtab__rtl92c_phy_dbm_to_txpwr_Idx causes a section type conflict

since you can't export static functions.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agortlwifi: rtl8192ce: rtl8192cu: Fix multiple def errors for allyesconfig build
Larry Finger [Wed, 23 Feb 2011 16:24:58 +0000 (10:24 -0600)]
rtlwifi: rtl8192ce: rtl8192cu: Fix multiple def errors for allyesconfig build

As noted by Stephan Rothwell, an allyesconfig build fails since rtl8192cu
was merged with failures such as:

drivers/net/wireless/rtlwifi/rtl8192cu/built-in.o: In function `rtl92c_phy_sw_chnl':
(.opd+0xf30): multiple definition of `rtl92c_phy_sw_chnl'
drivers/net/wireless/rtlwifi/rtl8192ce/built-in.o:(.opd+0xb70): first defined here
drivers/net/wireless/rtlwifi/rtl8192cu/built-in.o: In function `rtl92c_fill_h2c_cmd':
(.opd+0x288): multiple definition of `rtl92c_fill_h2c_cmd'
drivers/net/wireless/rtlwifi/rtl8192ce/built-in.o:(.opd+0x288): first defined here

These are caused because the code shared between rtl8192ce and rtl8192cu
is included in both drivers. This has been fixed by creating a new modue that
contains the shared code.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agortlwifi: Eliminate udelay calls with too large values
Willy Tarreau [Sun, 20 Feb 2011 10:43:36 +0000 (11:43 +0100)]
rtlwifi: Eliminate udelay calls with too large values

On ARM, compilation of rtlwifi/efuse.c fails with the message:
ERROR: "__bad_udelay" [drivers/net/wireless/rtlwifi/rtlwifi.ko] undefined!
On inspection, the faulty calls are in routine efuse_reset_loader(), a
routine that is never used, and the faulty routine is deleted.

Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agortlwifi: Let rtlwifi build when PCI is not enabled
Willy Tarreau [Sun, 20 Feb 2011 10:43:07 +0000 (11:43 +0100)]
rtlwifi: Let rtlwifi build when PCI is not enabled

On systems where PCI does not exist, a build of rtlwifi will fail.
Apply the same fix in case there are systems with PCI but not USB.

Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agortl8192cu: fix build error (vmalloc/vfree undefined)
Willy Tarreau [Sun, 20 Feb 2011 10:35:48 +0000 (11:35 +0100)]
rtl8192cu: fix build error (vmalloc/vfree undefined)

On the ARM system, a build fails due to missing include.

Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agortlwifi: Fix build when RTL8192CU is selected, but RTL8192CE is not
Willy Tarreau [Sun, 20 Feb 2011 10:35:26 +0000 (11:35 +0100)]
rtlwifi: Fix build when RTL8192CU is selected, but RTL8192CE is not

The wireless Makefile does not build rtlwifi for rtl8192cu unless
rtl8192ce is selected.

Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agomac80211: rename RX_FLAG_TSFT
Johannes Berg [Wed, 23 Feb 2011 14:06:08 +0000 (15:06 +0100)]
mac80211: rename RX_FLAG_TSFT

The flag isn't very descriptive -- the intention
is that the driver provides a TSF timestamp at
the beginning of the MPDU -- make that clearer
by renaming the flag to RX_FLAG_MACTIME_MPDU.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agomac80211: Fix a race on enabling power save.
Vivek Natarajan [Wed, 23 Feb 2011 07:34:32 +0000 (13:04 +0530)]
mac80211: Fix a race on enabling power save.

There is a race on sending a data frame before the tx completion
of nullfunc frame for enabling power save. As the data quickly
follows the nullfunc frame, the AP thinks that the station is out
of power save and continues to send the frames. Whereas in the
station, the nullfunc ack will be processed after the tx completion
of data frame and mac80211 goes to powersave. Thus the power
save state mismatch between the station and the AP causes some
data loss and some applications fail because of that. This patch
fixes this issue.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agob43: N-PHY: rev1: restore PHY state after RSSI operations
Rafał Miłecki [Mon, 21 Feb 2011 18:45:35 +0000 (19:45 +0100)]
b43: N-PHY: rev1: restore PHY state after RSSI operations

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agob43: N-PHY: rev1: enable some gain ctl workarounds
Rafał Miłecki [Mon, 21 Feb 2011 18:45:34 +0000 (19:45 +0100)]
b43: N-PHY: rev1: enable some gain ctl workarounds

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agob43: N-PHY: fix 0x2055 radio workaround condition
Rafał Miłecki [Mon, 21 Feb 2011 18:38:58 +0000 (19:38 +0100)]
b43: N-PHY: fix 0x2055 radio workaround condition

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k_htc: Fix error path in URB allocation
Sujith Manoharan [Mon, 21 Feb 2011 02:20:38 +0000 (07:50 +0530)]
ath9k_htc: Fix error path in URB allocation

ath9k_hif_usb_alloc_urbs() takes care of freeing
all the allocated URBs for the various endpoints when
an error occurs. Calling ath9k_hif_usb_dealloc_urbs() would
cause a panic since the URBs have already been freed.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k_htc: Add debug code to print endpoint mapping
Sujith Manoharan [Mon, 21 Feb 2011 02:20:30 +0000 (07:50 +0530)]
ath9k_htc: Add debug code to print endpoint mapping

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k_htc: Fix RX filters
Sujith Manoharan [Mon, 21 Feb 2011 02:20:23 +0000 (07:50 +0530)]
ath9k_htc: Fix RX filters

Add ATH9K_RX_FILTER_UNCOMP_BA_BAR and ATH9K_RX_FILTER_PSPOLL
when mac80211 requires it.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k_htc: Fix host RX initialization
Sujith Manoharan [Mon, 21 Feb 2011 02:20:15 +0000 (07:50 +0530)]
ath9k_htc: Fix host RX initialization

There is no need to set the BSSID mask or opmode when
initializing RX, they would be set correctly in the HW reset
routine.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k_htc: Fix TBTT calculation for IBSS mode
Sujith Manoharan [Mon, 21 Feb 2011 02:20:01 +0000 (07:50 +0530)]
ath9k_htc: Fix TBTT calculation for IBSS mode

The target beacon transmission time has to be synced with the HW
TSF when configuring beacon timers in Adhoc mode. Failing to do this
would cause erroneous beacon transmission, for example, on completion
of a scan run to check for IBSS merges.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k_htc: Configure beacon timers in AP mode
Sujith Manoharan [Mon, 21 Feb 2011 02:19:53 +0000 (07:49 +0530)]
ath9k_htc: Configure beacon timers in AP mode

Handle multi-interface situations by checking if
AP interfaces are already present.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k_htc: Add ANI for AP mode
Sujith Manoharan [Mon, 21 Feb 2011 02:19:38 +0000 (07:49 +0530)]
ath9k_htc: Add ANI for AP mode

The time granularity for the ANI task is different for AP and
station mode.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k_htc: Calculate and set the HW opmode
Sujith Manoharan [Mon, 21 Feb 2011 02:19:31 +0000 (07:49 +0530)]
ath9k_htc: Calculate and set the HW opmode

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k_htc: Allow AP interface to be created
Sujith Manoharan [Mon, 21 Feb 2011 02:19:23 +0000 (07:49 +0530)]
ath9k_htc: Allow AP interface to be created

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k_htc: Maintain individual counters for interfaces
Sujith Manoharan [Mon, 21 Feb 2011 02:19:15 +0000 (07:49 +0530)]
ath9k_htc: Maintain individual counters for interfaces

This is required for allowing only one IBSS interface to be
configured.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k_htc: Protect ampdu_action with a mutex
Sujith Manoharan [Mon, 21 Feb 2011 02:19:08 +0000 (07:49 +0530)]
ath9k_htc: Protect ampdu_action with a mutex

This is required when issuing commands to the firmware.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k_htc: Use VIF from the packet's control data
Sujith Manoharan [Mon, 21 Feb 2011 02:19:00 +0000 (07:49 +0530)]
ath9k_htc: Use VIF from the packet's control data

There is no need to use a locally stored reference.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k_htc: Make sequence number calculation per-VIF
Sujith Manoharan [Mon, 21 Feb 2011 02:18:53 +0000 (07:48 +0530)]
ath9k_htc: Make sequence number calculation per-VIF

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k_htc: Set the BSSID mask for multiple interfaces
Sujith Manoharan [Mon, 21 Feb 2011 02:18:46 +0000 (07:48 +0530)]
ath9k_htc: Set the BSSID mask for multiple interfaces

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k_htc: Remove OP_ASSOCIATED variable
Sujith Manoharan [Mon, 21 Feb 2011 02:18:39 +0000 (07:48 +0530)]
ath9k_htc: Remove OP_ASSOCIATED variable

mac80211 stores the association state in ieee80211_bss_conf.
Use this and remove the local state, which is incorrect anyway
since it is stored globally and not on a per-VIF basis.

Restarting ANI and reconfiguration of HW beacon timers when a
scan run ends requires more work. This is handled by iterating
over the active interfaces.

Finally, remove the useless check for associated status in RX
processing.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k_htc: Remove OP_PROTECT_ENABLE
Sujith Manoharan [Mon, 21 Feb 2011 02:18:31 +0000 (07:48 +0530)]
ath9k_htc: Remove OP_PROTECT_ENABLE

CTS protection can be obtained from mac80211 directly.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k_htc: Remove OP_PREAMBLE_SHORT
Sujith Manoharan [Mon, 21 Feb 2011 02:18:24 +0000 (07:48 +0530)]
ath9k_htc: Remove OP_PREAMBLE_SHORT

mac80211's BSS info can be used for this.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k_htc: Fix error handling in add_interface
Sujith Manoharan [Mon, 21 Feb 2011 02:18:16 +0000 (07:48 +0530)]
ath9k_htc: Fix error handling in add_interface

Addition of a station might fail - handle this error
properly by removing the VAP on the target.
Also, bail out immediately if the max. no of interfaces
has been reached.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k_htc: Unify target capability updating
Sujith Manoharan [Mon, 21 Feb 2011 02:18:09 +0000 (07:48 +0530)]
ath9k_htc: Unify target capability updating

Update capabilites on the target once, when
start() is called, there is no need for redundant
updating on adding an interface.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k_htc: Allow upto two simultaneous interfaces
Sujith Manoharan [Mon, 21 Feb 2011 02:18:00 +0000 (07:48 +0530)]
ath9k_htc: Allow upto two simultaneous interfaces

Multiple interfaces can be configured if a slot is free
on the target. Monitor mode also requires a slot.

The maximum number of stations that can be handled in
the firmware is 8, manage the station slots accordingly.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoath9k_htc: Handle storage devices
Sujith Manoharan [Mon, 21 Feb 2011 02:17:52 +0000 (07:47 +0530)]
ath9k_htc: Handle storage devices

Some AR7010 based devices are recognized as storage media.
Sending a CD-EJECT command to the device will 'convert' it into
a WLAN device. Do this within the driver itself, removing the
dependancy on an external program (usb_modeswitch).

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agomwl8k: Invert tx queues for set_hw_spec and set_edca_params
Nishant Sarmukadam [Thu, 17 Feb 2011 22:45:18 +0000 (14:45 -0800)]
mwl8k: Invert tx queues for set_hw_spec and set_edca_params

mac80211 and mwl8k FW tx queue priorities map inversely to each other.
Fix this.

Signed-off-by: Pradeep Nemavat <pnemavat@marvell.com>
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Tested-by: Pradeep Nemavat <pnemavat@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agomwl8k: Tell mac80211 we have rate adaptation in FW
Nishant Sarmukadam [Thu, 17 Feb 2011 22:45:17 +0000 (14:45 -0800)]
mwl8k: Tell mac80211 we have rate adaptation in FW

All mwl8k parts perform rate control in firmware.  Make this known to
mac80211 so that it does not launch minstrel.  Also, because actual tx
rate information is not available from the firmware, invalidate the
rate status before returning the skb to mac80211.

Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agomwl8k: fix rf_antenna rx argument for AP
Nishant Sarmukadam [Thu, 17 Feb 2011 22:45:16 +0000 (14:45 -0800)]
mwl8k: fix rf_antenna rx argument for AP

When configuring rx antennas using CMD_RF_ANTENNA, the argument input is
the number of antennas to be enabled. For AP, we support 3 rx antennas
and hence set the field to 3. For tx antennas, value is a bitmap, so 0x7
enables all three.

Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Pradeep Nemavat <pnemavat@marvell.com>
Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoMerge branch 'for-linville' of git://git.kernel.org/pub/scm/linux/kernel/git/luca...
John W. Linville [Wed, 23 Feb 2011 21:23:00 +0000 (16:23 -0500)]
Merge branch 'for-linville' of git://git./linux/kernel/git/luca/wl12xx

13 years agoMerge branch 'wireless-next-2.6' of git://git.kernel.org/pub/scm/linux/kernel/git...
John W. Linville [Wed, 23 Feb 2011 21:22:36 +0000 (16:22 -0500)]
Merge branch 'wireless-next-2.6' of git://git./linux/kernel/git/iwlwifi/iwlwifi-2.6

13 years agowl12xx: AP-mode - management of links in PS-mode
Arik Nemtsov [Tue, 22 Feb 2011 22:22:31 +0000 (00:22 +0200)]
wl12xx: AP-mode - management of links in PS-mode

Update the PS mode of each link according to a bitmap polled from
fw_status. Manually notify mac80211 about PS mode changes in connected
stations.

mac80211 will only be notified about PS start when the station is in PS
and there is a small number of TX blocks from this link ready in HW.
This is required for waking up the remote station since the TIM is
updated entirely by FW.

When a station enters mac80211-PS-mode, we drop all the skbs in the
low-level TX queues belonging to this sta with STAT_TX_FILTERED
to keep our queues clean.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
13 years agowl12xx: AP-mode - count free FW TX blocks per link
Arik Nemtsov [Tue, 22 Feb 2011 22:22:30 +0000 (00:22 +0200)]
wl12xx: AP-mode - count free FW TX blocks per link

Count the number of FW TX blocks allocated per link. We add blocks to a
link counter when allocated for a TX descriptor. We remove blocks
according to counters in fw_status indicating the number of freed blocks
in FW. These counters are polled after each IRQ.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
13 years agowl12xx: AP mode - fix bug in cleanup of wl1271_op_sta_add()
Arik Nemtsov [Tue, 22 Feb 2011 22:22:29 +0000 (00:22 +0200)]
wl12xx: AP mode - fix bug in cleanup of wl1271_op_sta_add()

Remove an active hlid when chip wakeup fails. In addition rename the
involved functions.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
13 years agowl12xx: AP-mode - support HW based link PS monitoring
Arik Nemtsov [Tue, 22 Feb 2011 22:22:28 +0000 (00:22 +0200)]
wl12xx: AP-mode - support HW based link PS monitoring

When operating in AP mode the wl1271 hardware filters out null-data
packets as well as management packets. This makes it impossible for
mac80211 to monitor the PS mode by using the PM bit of incoming frames.

Disable mac80211 automatic link PS-mode handling by supporting
IEEE80211_HW_AP_LINK_PS in HW flags.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
13 years agowl12xx: report invalid TX rate when returning non-TX-ed skbs
Arik Nemtsov [Tue, 22 Feb 2011 22:22:27 +0000 (00:22 +0200)]
wl12xx: report invalid TX rate when returning non-TX-ed skbs

Report a TX rate idx of -1 and count 0 when returning untransmitted
skbs to mac80211 using ieee80211_tx_status(). Otherwise mac80211
tries to use the returned (essentially garbage) status.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
13 years agowl12xx: AP-mode - TX queue per link in AC
Arik Nemtsov [Tue, 22 Feb 2011 22:22:26 +0000 (00:22 +0200)]
wl12xx: AP-mode - TX queue per link in AC

When operating in AP-mode we require a per link tx-queue.
This allows us to implement HW assisted PS mode for links,
as well as regulate per-link FW TX blocks consumption.
Split each link into ACs to support future QoS for AP-mode.

AC queues are emptied in priority and per-link queues are
scheduled in a simple round-robin fashion.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
13 years agowl12xx: AP-mode - fix race condition on sta connection
Arik Nemtsov [Tue, 22 Feb 2011 22:22:25 +0000 (00:22 +0200)]
wl12xx: AP-mode - fix race condition on sta connection

If a sta starts transmitting immediately after authentication, sometimes
the FW deauthenticates it. Fix this by marking the sta "in-connection"
in FW before sending the autentication response.

The "in-connection" entry is automatically removed when connection
succeeds or after a timeout.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
13 years agowl12xx: fix potential race condition with TX queue watermark
Arik Nemtsov [Tue, 22 Feb 2011 22:22:24 +0000 (00:22 +0200)]
wl12xx: fix potential race condition with TX queue watermark

Check the conditions for the high/low TX queue watermarks when the
spin-lock is taken. This prevents race conditions as tx_queue_count and
the flag checked are only modified when the spin-lock is taken.

The following race was in mind:
- Queues are almost full and wl1271_op_tx() will stop the queues, but it
  doesn't get the spin-lock yet.
- (on another CPU) tx_work_locked() dequeues 15 skbs from this queue and
  tx_queue_count is updated to reflect this
- wl1271_op_tx() does not check tx_queue_count after taking the
  spin-lock and incorrectly stops the queue.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
13 years agowl12xx: always set mac_address when configuring ht caps
Eliad Peller [Tue, 22 Feb 2011 22:27:07 +0000 (00:27 +0200)]
wl12xx: always set mac_address when configuring ht caps

The mac_address should be set also when ht caps are disabled.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
13 years agowl12xx: use standard ALIGN() macro
Eliad Peller [Tue, 22 Feb 2011 22:27:06 +0000 (00:27 +0200)]
wl12xx: use standard ALIGN() macro

Use the standard ALIGN() macro instead of redefining similar macros.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
13 years agowl12xx: declare support for IEEE80211_HW_REPORTS_TX_ACK_STATUS
Eliad Peller [Wed, 2 Feb 2011 09:20:05 +0000 (11:20 +0200)]
wl12xx: declare support for IEEE80211_HW_REPORTS_TX_ACK_STATUS

The wl12xx fw supports ack status reporting for tx frames, so
add the IEEE80211_HW_REPORTS_TX_ACK_STATUS flag to our supported
features.

Since we do the rate control in the fw, we'll probably want
to adjust the STA_LOST_PKT_THRESHOLD heuristics in the future, to
account for retransmissions as well.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
13 years agowl12xx: fix MODULE_AUTHOR email address
Luciano Coelho [Tue, 22 Feb 2011 12:19:28 +0000 (14:19 +0200)]
wl12xx: fix MODULE_AUTHOR email address

Change my old email address to the new one in MODULE_AUTHOR.

Signed-off-by: Luciano Coelho <coelho@ti.com>
13 years agowl12xx: avoid blocking while holding rcu lock on bss info change
Arik Nemtsov [Sat, 12 Feb 2011 21:24:20 +0000 (23:24 +0200)]
wl12xx: avoid blocking while holding rcu lock on bss info change

Some blocking functions were called while holding the rcu lock for
accessing STA information. This can lead to a deadlock.

Save the required info beforehand and release the rcu without
blocking.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
13 years agowl12xx: fix identification of beacon packets (debug)
Eliad Peller [Wed, 9 Feb 2011 10:25:14 +0000 (12:25 +0200)]
wl12xx: fix identification of beacon packets (debug)

for debugging purposes, wl12xx determines whether a rx packet
is a beacon packet.

however, it checks only the frame_control subtype without checking
the actual packet type, which leads to false identification in some
cases.

use ieee80211_is_beacon instead.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
13 years agowl12xx: update PLT initialization for new firmware
Gery Kahn [Tue, 1 Feb 2011 09:03:08 +0000 (03:03 -0600)]
wl12xx: update PLT initialization for new firmware

In revision > 6.1.3.0.0 the firmware expects memory configuration command
as part of boot. This was missing if driver boots in PLT mode.
The patch adds the memory configuration command, which fixes PLT commands
tx continuous and rx statistics.

Signed-off-by: Gery Kahn <geryk@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
13 years agowl12xx: change type from u8 to int
Dan Carpenter [Mon, 7 Feb 2011 16:47:42 +0000 (19:47 +0300)]
wl12xx: change type from u8 to int

ret is used to store int types.  Using an u8 will break the error
handling.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
13 years agoath9k_hw: Fix power on reset
Sujith Manoharan [Mon, 21 Feb 2011 11:37:12 +0000 (17:07 +0530)]
ath9k_hw: Fix power on reset

Commit "ath9k_hw: add an extra delay when reseting AR_RTC_RESET"
added an extra udelay to the reset routine. As the required
delay is already present, remove this.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agort2x00: Add support for RT5390 chip
RA-Shiang Tu [Sun, 20 Feb 2011 12:57:46 +0000 (13:57 +0100)]
rt2x00: Add support for RT5390 chip

Add new RT5390 chip support

Signed-off-by: Shiang Tu <shiang_tu@ralinktech.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agort2x00: Add/Modify the GPIO register definition
Shiang Tu [Sun, 20 Feb 2011 12:57:22 +0000 (13:57 +0100)]
rt2x00: Add/Modify the GPIO register definition

Revise/Add GPIO register related definitions

Signed-off-by: Shiang Tu <shiang_tu@ralinktech.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agort2x00: Add/Modify protection related register definitions
Shiang Tu [Sun, 20 Feb 2011 12:56:54 +0000 (13:56 +0100)]
rt2x00: Add/Modify protection related register definitions

Make the definition of protection related registers more precisely

Signed-off-by: Shiang Tu <shiang_tu@ralinktech.com>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agort2x00: Remove superfluos empty line
Helmut Schaa [Sun, 20 Feb 2011 12:56:26 +0000 (13:56 +0100)]
rt2x00: Remove superfluos empty line

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agoRevert "rt2x00 : avoid timestamp for monitor injected frame."
Helmut Schaa [Sun, 20 Feb 2011 12:56:07 +0000 (13:56 +0100)]
Revert "rt2x00 : avoid timestamp for monitor injected frame."

This reverts commit e81e0aef32bfa7f593b14479b9c7eaa7196798ac "rt2x00 : avoid
timestamp for monitor injected frame." as it breaks proper timestamp insertion
into probe responses injected by hostapd for example.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Cc: Benoit PAPILLAULT <benoit.papillault@free.fr>
Cc: Alban Browaeys <prahal@yahoo.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agort2x00: Minor optimization for devices with RTS/CTS offload
Helmut Schaa [Sun, 20 Feb 2011 12:55:46 +0000 (13:55 +0100)]
rt2x00: Minor optimization for devices with RTS/CTS offload

Only devices that don't have RTS/CTS offload need to check for
IEEE80211_TX_RC_USE_RTS_CTS and IEEE80211_TX_RC_USE_CTS_PROTECT.

By swapping both conditions we keep the same number of needed conditionals
for devices without RTS/CTS offload but save one conditional on devices
with RTS/CTS offload.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agort2x00: Fix rt2800 txpower setting to correct value
RA-Jay Hung [Sun, 20 Feb 2011 12:55:25 +0000 (13:55 +0100)]
rt2x00: Fix rt2800 txpower setting to correct value

TX_PWR_CFG_* setting need to consider below cases
-compesate 20M/40M tx power delta for 2.4/5GHZ band
-limit maximum EIRP tx power to power_level of
 regulatory requirement

Signed-off-by: RA-Jay Hung <jay_hung@ralinktech.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agort2x00: Add antenna setting for RT3070/RT3090/RT3390 with RX antenna diversity support
RA-Jay Hung [Sun, 20 Feb 2011 12:54:52 +0000 (13:54 +0100)]
rt2x00: Add antenna setting for RT3070/RT3090/RT3390 with RX antenna diversity support

For RT3070/RT3090/RT3390 with RX antenna diversity support, we must select
default antenna using gpio control way even if we do not turn on
antenna diversity feature.

Seperate the meaning of TX/RX chain and antenna. Some chips use
2x2 TX/RX chain but may have 3 RX antennas or 1x1 TX/RX chain
but may have 2 RX antennas to do antenna diversity.

Signed-off-by: RA-Jay Hung <jay_hung@ralinktech.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agortlwifi: Remove obsolete/unused macros
Larry Finger [Sat, 19 Feb 2011 22:30:02 +0000 (16:30 -0600)]
rtlwifi: Remove obsolete/unused macros

The original code has many macros that are no longer needed.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
13 years agortlwifi: rtl8192ce: Fix endian warnings
Larry Finger [Sat, 19 Feb 2011 22:29:57 +0000 (16:29 -0600)]
rtlwifi: rtl8192ce: Fix endian warnings

Drivers rtlwifi, and rtl8192ce generate a large number of
sparse warnings. This patch fixes most of them.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>