Commit Graph

17 Commits

Author SHA1 Message Date
Rajkumar Manoharan 506847ad34 ath9k_hw: cleanup MCI gpm offset state
Add utility functions to get and test GPM offset and
remove MCI_STATE*_GPM_OFFSET states.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13 14:35:58 -04:00
Rajkumar Manoharan a197b76c23 ath9k: fix btcoex duty cycle
* Reset duty cycle before updating btcoex scheme. Otherwise duty cycle
  reaches max limit and never be reduced again
* Adjust duty cycle with proper BDR profile value

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13 14:35:57 -04:00
Rajkumar Manoharan 3c7992e33a ath9k: defer btcoex scheme update
As btcoex scheme updation might sleep, remove the function call
from tasklet context and queue it up as a separate work.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13 14:35:56 -04:00
Rajkumar Manoharan dfd0587a7d ath9k: keep btcoex period in milliseconds
btcoex periord is converted into micro seconds during initialization
and converted back to milli seconds while starting timer. As MCI code
handles btcoex period in msec, lets keep the btcoex timer in msec and
convert them into other form whenever needed.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13 14:35:56 -04:00
Rajkumar Manoharan 9e2e0c8469 ath9k: simplify btcoex profile management
This patch simplifies profile management utility functions.

* Separate find_profile from add/del functions
* Return correct values when the profile list is empty or
  profile is ot found
* flush the profiles when there are entries in the list

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-13 14:35:55 -04:00
Rajkumar Manoharan 0603143e47 ath9k: BT coex performance tuning for AR9462
Use smaller aggregation limit and increasing aggregation threshold
for osla that could improve wlan performance when there is HID profile.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-06 15:20:29 -04:00
Sujith Manoharan e270e776a0 ath9k: Setup MCI interrupts properly
MCI interrupts have to be enabled only when BTCOEX is
actually in use.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-06 15:20:24 -04:00
Sujith Manoharan 682dd04b37 ath9k: Cleanup mci.c
Cleanup whitespace, fix indentation and coding style.
Also remove debug messages that were flooding the log.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-27 14:06:40 -05:00
Sujith Manoharan 9a15858f0c ath9k: Remove ATH9K_HW_CAP_MCI checks
With the ability to remove BTCOEX support at compile time,
these checks are no longer needed.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-27 14:06:39 -05:00
Sujith Manoharan ea510e4bdd ath9k: Cleanup MCI init/deinit routines
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>
2012-02-27 14:06:33 -05:00
Luis R. Rodriguez 6ec414fd12 ath9k: make ath_mci_duty_cycle static
This fixes this sparse warning:

  CHECK   drivers/net/wireless/ath/ath9k/mci.c
drivers/net/wireless/ath/ath9k/mci.c:23:4: warning: symbol 'ath_mci_duty_cycle' was not declared. Should it be static?

Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-04 14:30:42 -05:00
Felix Fietkau 8a30930563 ath9k_hw: make bluetooth coexistence support optional at compile time
Many systems (e.g. embedded systems) do not have wifi modules connected to
bluetooth modules, so bluetooth coexistence is irrelevant there. With the
addition of MCI support, ath9k picked up quite a bit of extra code that
can be compiled out this way.

This patch redefines ATH9K_HW_CAP_MCI and adds an inline wrapper for
querying the bluetooth coexistence scheme, allowing the compiler to
eliminate code that uses it, with only very little use of #ifdef.

On MIPS this reduces the total size for the modules by about 20k.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-19 14:46:55 -05:00
Joe Perches d2182b69dc ath: Convert ath_dbg(bar, ATH_DBG_<FOO>, to ath_dbg(bar, FOO
Add ATH_DBG_ to macros to shorten the uses and
reduce the line count.

Coalesce ath_dbg formats.
Add missing spaces to coalesced formats.
Add missing newline terminations to ath_dbg formats.
Align ath_dbg arguments where appropriate.
Standardize ath_dbg formats without periods.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-19 14:35:31 -05:00
Felix Fietkau e5f0a27621 ath9k: make two mci related functions static
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-13 15:33:34 -05:00
Mohammed Shafi Shajakhan 19686ddf63 ath9k: MCI state machine based on MCI interrupt
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>
2011-11-30 15:08:56 -05:00
Mohammed Shafi Shajakhan 9e25365ffa ath9k: Add functions to allocate/free buffers for MCI
required buffers and dma allocation is done for GPM and SCHED
messages

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>
2011-11-30 15:08:50 -05:00
Rajkumar Manoharan 7dc181c273 ath9k: Add btcoex profile management support for AR9462
AR9462 chips have the capabilities to provoide bluetooth
profile information. For non-AR9462 btcoex chips, the BT
priority traffic was identified by periodically polling
the respective registers and updated dutycycle, stomptype,
etc. As AR9462 chip offers the BT profile informations,
let us make use of that to update aggregation limit,
dutycycle, stomptype and wieghtages.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-08 15:54:30 -05:00