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path: root/drivers/net/wireless/ath/ath9k/btcoex.h (follow)
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2012-11-21ath9k: stomp audio profiles on weak signal strengthRajkumar Manoharan1-0/+1
On lower WLAN signal strength, WLAN downlink traffic might suffer from retransmissions. At the mean time, playing SCO/A2DP profiles is affecting WLAN stability. In such scenario, by stomping SCO/A2DP BT traffic completely for a BTCOEX period, gives WLAN traffic an oppertunity to recover PHY rate. It also improves WLAN stability at lower RSSI without sacificing BT traffic. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-10-29ath9k_hw: Fix frequent BT rx recoveryRajkumar Manoharan1-0/+1
While resuming from S3, BT host issues HCI reset command and it causes BT firmware to busy with security key calculation. At this movement, WLAN detects MCI hardware error of MCI_CONT_INFO_TIMEOUT and then it starts the recovery sequence repeatedly. Too many recovery sequences would exhaust the BT kernel message pool. This patch imposes a duration between consecutive BT recovery procedure. Thus it solves BT firmware panic issue reported in AR9565. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-10-29ath9k: adjust WLAN and BT concurrent transmissionRajkumar Manoharan1-0/+3
The simulataneous transmission of both WLAN and BT might cause increase in power levels. To avoid regulatory violation, WLAN tx power will be adjusted according to BT power index based on avaliability of BT scheduling messages. WLAN tx power reduction might affect its performance. So WLAN tx power is only be lowered when the signal strength is good enough. Otherwise concurrent tx will be disabled and WLAN uses it default power levels. Also concurrent tx is disabled whenever WLAN is moving to off-channel which might be used by BT. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-10-29ath9k: Add concurrent WLAN and BT tx support for MCI based chipsRajkumar Manoharan1-0/+3
This feature enables both WLAN and BT can transmit simultaneously by setting WLAN and BT to equal priorities. Whenever both are transmitting, it might violate regulatory power limits. To avoid regulatory violation, WLAN tx power will be adjusted according to BT power index based on avaliability of BT scheduling message. If the combined power exceeds threshold, BT transmission will be held off. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-28ath9k: Fix BTCOEX weight initializationSujith Manoharan1-1/+2
The WLAN/BT weights have to set correctly before BTCOEX is initialized. Currently, this is not done for all chips in the AR9003 family. This patch fixes this issue by setting the weights in the init path. While at it, rename ar9462_wlan_weights to mci_wlan_weights since it is common to both AR9462 and AR9565. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-06ath9k: improve BT FTP/PAN performanceRajkumar Manoharan1-0/+4
When BT FTP/PAN transmits while WLAN is idle, the one of 9462 chain often picks up BT's tx signal and starts receiving. If the current weight is set to be higher than BT tx, BT tx will be aborted and this also degrades BT performance. Hence lower WLAN rx priority in this case only when there are no WLAN traffic. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-23ath9k_hw: remove ATH_BTCOEX_CFG_MCIRajkumar Manoharan1-1/+0
AR9462 uses modified version of 3-Wire hw scheme for btcoex. MCI itself is not a separate hw scheme but it aids to manage multiple bt profiles. In ar9462, bt priority traffic is identified by the number of bt profile types instead of gpio. So that this patch removes MCI hw scheme. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-27ath9k_hw: Use CONFIG_ATH9K_BTCOEX_SUPPORTSujith Manoharan1-1/+0
Make use of CONFIG_ATH9K_BTCOEX_SUPPORT in ath9k_hw to provide a clean way of compilation without BTCOEX support. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-27ath9k: Initialize BTCOEX scheme using a helperSujith Manoharan1-0/+1
Setting up the required scheme can be done as part of the BTCOEX initialization path and it doesn't belong in ath9k_hw_fill_cap_info() anyway. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-27ath9k: Initialize MCI params using a helperSujith Manoharan1-0/+1
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-27ath9k: Cleanup MCI init/deinit routinesSujith Manoharan1-1/+0
This patch simplifies the buffer allocation functions for MCI and removes unneeded memset calls. Also, a couple of unused variables are removed and a memory leak in DMA allocation is fixed. [ 1263.788267] WARNING: at /home/sujith/dev/wireless-testing/lib/dma-debug.c:875 check_unmap+0x173/0x7e0() [ 1263.788273] ath9k 0000:06:00.0: DMA-API: device driver frees DMA memory with different size [device address=0x0000000071908000] [map size=512 bytes] [unmap size=256 bytes] [ 1263.788345] Pid: 774, comm: rmmod Tainted: G W O 3.3.0-rc3-wl #18 [ 1263.788348] Call Trace: [ 1263.788355] [<ffffffff8105110f>] warn_slowpath_common+0x7f/0xc0 [ 1263.788359] [<ffffffff81051206>] warn_slowpath_fmt+0x46/0x50 [ 1263.788363] [<ffffffff8125a713>] check_unmap+0x173/0x7e0 [ 1263.788368] [<ffffffff8123fc22>] ? prio_tree_left+0x32/0xc0 [ 1263.788373] [<ffffffff8125aded>] debug_dma_free_coherent+0x6d/0x80 [ 1263.788381] [<ffffffffa0701c3c>] ath_mci_cleanup+0x7c/0x110 [ath9k] [ 1263.788387] [<ffffffffa06f4033>] ath9k_deinit_softc+0x113/0x120 [ath9k] [ 1263.788392] [<ffffffffa06f55cc>] ath9k_deinit_device+0x5c/0x70 [ath9k] [ 1263.788397] [<ffffffffa0704934>] ath_pci_remove+0x54/0xa0 [ath9k] [ 1263.788401] [<ffffffff81267d06>] pci_device_remove+0x46/0x110 [ 1263.788406] [<ffffffff813102bc>] __device_release_driver+0x7c/0xe0 [ 1263.788410] [<ffffffff81310a00>] driver_detach+0xd0/0xe0 [ 1263.788414] [<ffffffff81310118>] bus_remove_driver+0x88/0xe0 [ 1263.788418] [<ffffffff813111c2>] driver_unregister+0x62/0xa0 [ 1263.788421] [<ffffffff812680c4>] pci_unregister_driver+0x44/0xc0 [ 1263.788427] [<ffffffffa0705015>] ath_pci_exit+0x15/0x20 [ath9k] [ 1263.788432] [<ffffffffa070a92d>] ath9k_exit+0x15/0x31 [ath9k] [ 1263.788436] [<ffffffff810b971c>] sys_delete_module+0x18c/0x270 [ 1263.788441] [<ffffffff81436edd>] ? retint_swapgs+0x13/0x1b [ 1263.788446] [<ffffffff812483be>] ? trace_hardirqs_on_thunk+0x3a/0x3f [ 1263.788450] [<ffffffff814378e9>] system_call_fastpath+0x16/0x1b [ 1263.788453] ---[ end trace 3ab4d030ffde40d4 ]--- Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-30ath9k_hw: Add MCI h/w specific structureMohammed Shafi Shajakhan1-0/+31
Cc: Wilson Tsao <wtsao@qca.qualcomm.com> Cc: Senthil Balasubramanian <senthilb@qca.qualcomm.com> Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-17ath9k_hw: set btcoex weights for AR9462Rajkumar Manoharan1-0/+2
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-17ath9k_hw: Cleanup btcoex wlan weightsRajkumar Manoharan1-2/+6
Remove all wlan weight macros and group it together for better understanding & readability. It makes the code reusable for AR9462 wlan weights. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-19ath9k: Drag the driver to the year 2011Sujith Manoharan1-1/+1
The Times They Are a-Changin'. Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-28ath9k_hw: Add support for btcoexistence in AR9300.Vivek Natarajan1-3/+7
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-28ath9k_hw: Move bt_stomp to hw from common.Vivek Natarajan1-0/+10
Move bt_stomp to ath9k_hw and add its support for latest chipsets. Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-29ath9k: Remove code which enables btcoex based on subsys idVasanthakumar Thiagarajan1-1/+0
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-22ath9k: Fix wifi disconnection when collocated bt scan is activeVasanthakumar Thiagarajan1-0/+2
As all bt packets are priority traffic during bt scan, wifi will get disconnected when bt scan lasts for few seconds. Fix this by allocating 10% of bt period time (4.5ms) to wifi fully. Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07ath9k: rename ath_btcoex_supported() to ath9k_hw_btcoex_supported()Luis R. Rodriguez1-1/+1
Also just pass the ath_hw as the parameter. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07ath9k: move ath_btcoex_config and ath_bt_mode to btcoex.cLuis R. Rodriguez1-20/+0
These are only used by btcoex.c on one routine, so stuff them into that file. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07ath9k: now move ath9k_hw_btcoex_set_weight() to btcoex.cLuis R. Rodriguez1-0/+3
After some necessary cleanups we now move ath9k_hw_btcoex_set_weight() to where it belongs. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07ath9k: rename ath_btcoex_info to ath_btcoex_hwLuis R. Rodriguez1-2/+2
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07ath9k: rename btcoex_scheme to just schemeLuis R. Rodriguez1-1/+1
btcoex_scheme is already part of a btcoex struct, its implied this is btcoex related. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07ath9k: remove unused bt_duty_cycleLuis R. Rodriguez1-1/+0
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07ath9k: move bt_stomp_type to driver coreLuis R. Rodriguez1-8/+0
The bt_stomp_type defines the bt coex weight, it has a one-to-one mapping. In the future we may want to just use the weight directly. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07ath9k: replaces SC_OP_BTCOEX_ENABLED with a boolLuis R. Rodriguez1-0/+1
Whether or not bluetooth coex has been enabled is a hardware state and only the hardware helpers will be able to set this. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07ath9k: move driver core helpers to main.cLuis R. Rodriguez1-3/+4
Keep on btcoex.c only hardware access helpers, move the driver core specific code to main.c. To accomplish this we had to split ath_init_btcoex_info() into two parts, the driver core part -- ath_init_btcoex_timer() and the hw specific part -- ath9k_hw_init_btcoex_hw_info(). This highlights how ath_gen_timer is part of the driver core, not hw related, so stuff that into ath_btcoex struct. The ath9k_hw_btcoex_init() code is now put inline on ath_init_softc() through a switch to it easier to follow, since we did that we can now call ath_tx_get_qnum() from the main.c instead of btcoex.c Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07ath9k: move hw specific btcoex info to ath_hwLuis R. Rodriguez1-11/+3
Since we now access it via the ath_hw declare the ath_hw pointer at the header of some routines and se it. ath9k.h no longer needs to access btcoex.h and to adjust for this move ath_btcoex_set_weight() into btcoex.h and instead give main.c a helper for setting initial values upon drv_start() Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07ath9k: move btcoex core driver info to its own structLuis R. Rodriguez1-12/+4
There is some bluetooth coexistance data which is driver specific, stuff that into its own structure. Cc: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-09ath9k: Initialize the priority gpio for BT coex 3-wireVasanthakumar Thiagarajan1-0/+1
Oops, a stupid mistake in the original patch which adds coex 3-wire support. Bluetooth priority gpio needs to be gpio 7. Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-09ath9k: Enable btcoex based on the subsystem id of the deviceVasanthakumar Thiagarajan1-0/+1
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28ath9k: Add Bluetooth Coexistence 3-wire supportVasanthakumar Thiagarajan1-1/+60
This patch adds 3-wire bluetooth coex support for AR9285. This support can be enabled through btcoex_enable modparam. Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28ath9k: Determine btcoex scheme type based on chip versionVasanthakumar Thiagarajan1-0/+7
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28ath9k: Move btcoex related data to a separate structVasanthakumar Thiagarajan1-0/+8
Also define macros for wlanactive and btactive (5 & 6) gpios. Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28ath9k: Move btcoex stuff from hw.[ch] to new btcoex.[ch]Vasanthakumar Thiagarajan1-0/+24
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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