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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>
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LED support is typically handled via system GPIO on these platforms.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Flush MCI profiles only if MCI is being actually used.
This fixes a panic on driver unload when non-MCI devices
are being used and btcoex_enable is set.
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<ffffffffa06296d2>] ath_mci_flush_profile+0x12/0x100 [ath9k]
Call Trace:
[<ffffffffa061befe>] ath9k_stop_btcoex+0x5e/0x80 [ath9k]
[<ffffffffa061ed57>] ath9k_stop+0xb7/0x230 [ath9k]
[<ffffffffa0533f30>] ieee80211_stop_device+0x50/0x180 [mac80211]
[<ffffffffa051f0cf>] ieee80211_do_stop+0x2af/0x6a0 [mac80211]
[<ffffffffa051f4da>] ieee80211_stop+0x1a/0x20 [mac80211]
[<ffffffff81365d96>] __dev_close_many+0x86/0xe0
[<ffffffff81365ee0>] dev_close_many+0xa0/0x110
[<ffffffff81366038>] rollback_registered_many+0xe8/0x260
[<ffffffff813661cb>] unregister_netdevice_many+0x1b/0x80
[<ffffffffa051e950>] ieee80211_remove_interfaces+0xd0/0x110 [mac80211]
[<ffffffffa050c133>] ieee80211_unregister_hw+0x53/0x120 [mac80211]
[<ffffffffa061d5a4>] ath9k_deinit_device+0x44/0x70 [ath9k]
[<ffffffffa062c1d4>] ath_pci_remove+0x54/0xa0 [ath9k]
[<ffffffff81267c46>] pci_device_remove+0x46/0x110
[<ffffffff8131021c>] __device_release_driver+0x7c/0xe0
[<ffffffff81310960>] driver_detach+0xd0/0xe0
[<ffffffff81310078>] bus_remove_driver+0x88/0xe0
[<ffffffff81311122>] driver_unregister+0x62/0xa0
[<ffffffff81268004>] pci_unregister_driver+0x44/0xc0
[<ffffffffa062c8b5>] ath_pci_exit+0x15/0x20 [ath9k]
[<ffffffffa063205d>] ath9k_exit+0x15/0x31 [ath9k]
[<ffffffff810b92cc>] sys_delete_module+0x18c/0x270
[<ffffffff814373dd>] ? retint_swapgs+0x13/0x1b
[<ffffffff8124828e>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[<ffffffff81437de9>] system_call_fastpath+0x16/0x1b
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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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>
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Since BTCOEX code can be compiled out cleanly now,
remove these checks.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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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>
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This patch uses CONFIG_ATH9K_BTCOEX_SUPPORT to conditionally
compile btcoex-related code in the driver core.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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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>
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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>
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This patch removes btcoex_enable from stomp type change and let
it be called from callee functions that makes the code can be
reusable for MCI changes.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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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>
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Renamed to be in sync with Marketing term and to avoid
confusion with other chip names.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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ath9k_hw_gpio_get reads the GPIO in/out registers to get the status of
GPIO pins, so use PS wrappers
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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now the LED starts working for AR946/8x chipsets
Cc: "Balasubramanian, senthilkumar" <senthilb@qca.qualcomm.com>
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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At preset set_interrupt also enables interrupt after changing
mask. This is not necessary in all cases and also sometime it
breaks the assumption that interrupt was disabled. So let us
enable the interrupt explicity if it was disabled earlier.
This could also avoid unnecessary register ops and also helps
the follow up patch to have global ref count for interrupts ops.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The Times They Are a-Changin'.
Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Use ps wrappers before accessing hw registers in btcoex.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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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>
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The LED gpio is incorrectly programmed for AR9300 and so the led
is not working propelry. AR93xx uses gpio 10 for LED and not the
default.
Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Hw next tigger time is configured as current_tsf + (timer_period * 10) which
is wrong, it should be current_tsf + timer_period. The wrong hw timer configuration
would cause btcoex related issues.
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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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>
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Remove ath/debug.h and the includes of these files.
Coalesce long formats.
Correct a few misspellings and missing "\n"s from these logging messages.
Remove unnecessary trailing space before a newline.
Remove ARRAY_SIZE casts, use printf type %zu
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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So these errors are always emitted at KERN_ERR level.
Remove ARRAY_SIZE casts, use printf type %zu
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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When the timer_next argument to ath9k_gen_timer_start is behind the tsf value,
tsf + timer_period is used, which is what ath_btcoex_period_timer was setting
it to.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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OProfile showed that ath9k was spending way too much time in
ath9k_hw_set_interrupts. Since most of the interrupt mask changes only
need to globally enable/disable interrupts, it makes sense to split
this part into separate functions, replacing all calls to
ath9k_hw_set_interrupts(ah, 0) with ath9k_hw_disable_interrupts(ah).
ath9k_hw_set_interrupts(ah, ah->imask) only gets changed to
ath9k_hw_enable_interrupts(ah), whenever ah->imask was not changed
since the point where interrupts were disabled.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Some vendors require the LED to be ON always irrespective of any
radio activity. Introducing a module parameter to disable blinking,
so that one can choose between always on or led blink during
activity.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Frans Pop <elendil@planet.nl>
Cc: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Add ah variable in the functions that didn't have it and used sc->imask.
Replace sc->sc_ah with ah in those functions.
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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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>
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Move all LED/RFKILL/BTCOEX related code
to gpio.c
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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