Commit Graph

38 Commits

Author SHA1 Message Date
Felix Fietkau 3553727cfa ath9k/ath9k_htc: remove redundand checks for dual-stream tx support
mac80211 already masks the HT sta capabilities based on hardware support

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-14 15:39:33 -04:00
Felix Fietkau 9cc3271faa ath9k_hw: remove ATH9K_CAP_TXPOW
replace calls that read this capability with accesses to ath9k_hw's
regulatory data.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-14 15:39:33 -04:00
Felix Fietkau e8c35a77e3 ath9k_htc: use common WMM AC definitions instead of ath9k ones
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-14 15:39:30 -04:00
Johannes Berg 5d22c89b9b mac80211: remove non-irqsafe aggregation callbacks
The non-irqsafe aggregation start/stop done
callbacks are currently only used by ath9k_htc,
and can cause callbacks into the driver again.
This might lead to locking issues, which will
only get worse as we modify locking. To avoid
trouble, remove the non-irqsafe versions and
change ath9k_htc to use those instead.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-14 15:39:27 -04:00
Sujith ea46e644e8 ath9k_htc: Setup 5GHz channels
AR7010 is dual-band. Setup the channels and rateset
for 5GHz band.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-04 16:00:39 -04:00
Sujith 29d9075e1c ath9k_htc: Configure dual stream rates
The rate information on the target has to be updated
for 2-stream devices, along with the correct chainmask.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-04 16:00:39 -04:00
Sujith abd984e611 ath9k_htc: Use proper station add/remove callbacks
sta_add/sta_remove are the callbacks that can sleep.
Use them instead of sta_notify.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-04 15:32:18 -04:00
Sujith 764580f577 ath9k_htc: Fix fair beacon distribution
This patch fixes beacon distribution in IBSS mode
by configuring the hardware beacon queue properly.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-03 14:14:41 -04:00
Sujith 21d5130b8c ath9k_htc: Handle host RX disable
The MIB counters used by ANI have to be disabled
on the host because the FW doesn't do it on the target side.
Also, flush the receive buffers before initializing
RX on the target.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-03 14:14:41 -04:00
Sujith e9201f09ad ath9k_htc: Handle monitor interface removal
The monitor interface instance on the target has
to be removed before setting it to FULLSLEEP.
Handle this properly.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-03 14:14:40 -04:00
Sujith 23367769af ath9k_htc: Fix locking for ps_idle
ps_idle is protected by the htc_pm_lock mutex.
Use it to protect the variable.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-03 14:14:40 -04:00
Sujith 3901737e25 ath9k_htc: Remove useless cancel_work_sync
There is no need to cancel the PS work when disassociation
happens. The work handlers are cancelled in the stop()
callback.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-03 14:14:40 -04:00
Sujith 4a34a8c19c ath9k_htc: Fix bug in handling CONF_IDLE
Disable the radio only when mac80211 indicates it,
through the IEEE80211_CONF_CHANGE_IDLE flag.
Not handling this properly will result in multiple
calls to radio_disable() even though the radio is
already idle.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-03 14:14:40 -04:00
Sujith cb551df202 ath9k_htc: Add PS wrappers
The HW has to be awake when registers are accessed.
Ensure this is so by using the PS wrappers at
appropriate places.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-03 14:14:40 -04:00
Sujith 881ac6a535 ath9k_htc: Revamp CONF_IDLE handling
This patch revamps IDLE power save handling in the driver.
Two separate functions (radio enable/disable) are introduced,
because the semantics of radio handling is just not the same
as the start()/stop() callbacks. For example, the HW must not
be disabled, instead, the PHY has to be disabled in radio_disable().
Also, the HW has to be reset properly in radio enable/disable and
certain registers have to be programmed only once, in the
start() callback.

The radio_enable() routine doesn't need the PS wrappers since
we set the HW power mode to AWAKE anyway before calling it.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-03 14:10:47 -04:00
Sujith b4dec5e8f5 ath9k_htc: Enable SGI in HT20 for AR9271
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-02 16:13:16 -04:00
Sujith 2c76ef89b0 ath9k_htc: Update HT configuration properly
Use BSS_CHANGED_HT to handle HT parameter changes.
The rate information on the target has to be updated
to handle changes in HT configuration.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-02 16:13:16 -04:00
Sujith 0d425a7d7b ath9k_htc: Cleanup rate initialization
This patch removes a large chunk of code dealing
with rate management within the driver and simplifying
things by removing the hacky method of calculating
HT changes. A subsequent patch would fix this by
just using BSS_CHANGED_HT from mac80211.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-02 16:13:15 -04:00
Sujith 2edb4583c6 ath9k_htc: Add queue statistics to xmit debugfs file
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-02 16:13:02 -04:00
Sujith.Manoharan@atheros.com 05a30f9cf2 ath9k_htc: Lock sta_notify() callback
Since ->sta_notify() can sleep, protect
the callback with a mutex.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12 16:39:05 -04:00
Dan Carpenter 0730d11419 ath9k/htc_drv_main: off by one error
I changed "> ATH9K_HTC_MAX_TID" to ">= ATH9K_HTC_MAX_TID" to avoid a
potential overflow.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-10 14:56:47 -04:00
Dan Carpenter 277a64d17e ath9k/htc_drv_main: null dereference typo
This is a stray null dereference.  We initialize "ista" properly later on.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-10 14:56:46 -04:00
Sujith 2ff6575b1e ath9k_htc: Handle IDLE LED properly
Switch LED off/on when handling CONF_CHANGE_IDLE.
Not doing this would leave the radio LED on even
though the chip would be in full sleep mode.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-07 14:57:17 -04:00
Sujith 9c6dda4e2d ath9k_htc: Fix beaconing in IBSS mode
The current way of managing beaconing in ad-hoc
mode has a subtle race - the beacon obtained from mac80211
is freed in the SWBA handler rather than the TX
completion routine. But transmission of beacons goes
through the normal SKB queue maintained in hif_usb,
leading to a situation where __skb_dequeue() in the TX
completion handler goes kaput.

Fix this by simply getting a beacon from mac80211 for
every SWBA and free it in its completion routine.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-07 14:55:52 -04:00
Vivek Natarajan 8a8572a821 ath9k_htc: Handle CONF_IDLE during unassociated state to save power.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-27 16:09:21 -04:00
Sujith 5bf1e17a4a ath9k_htc: Remove unnecessary powersave restore
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-27 16:09:15 -04:00
Sujith 7073daa63b ath9k_htc: Cancel running timers before disabling HW
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-26 14:21:17 -04:00
Sujith 7f1f5a0060 ath9k_htc: Fix sparse endian warnings
This patch fixes a bunch of endian issues that
were exposed by sparse. It's a miracle that the driver
worked at all till now.

The Lord be praised.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-16 15:47:13 -04:00
Sujith eac8e385e9 ath9k_htc: Add dropped SKB count to debugfs
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-16 15:47:11 -04:00
Sujith 0daa3e3a7d ath9k_htc: Remove GPIO set on unload
There is no point in trying to set the LED pin
when the module is being unloaded. The target
would be reset anyway.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-16 15:47:10 -04:00
Sujith fcb9392ff7 ath9k_htc: Cleanup beacon configuration
This patch cleans up beacon configuration,
removing a redundant interface type check
and updating beacon interval in the correct place.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-16 15:47:03 -04:00
Vivek Natarajan 1c3652a573 ath9k_htc: Configure the beacon timers once the scan is completed.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-07 14:37:59 -04:00
Vivek Natarajan bde748a40d ath9k_htc: Add support for power save.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-07 14:37:58 -04:00
Sujith 7757dfed58 ath9k_htc: Handle TX queue overflow
Stop/restart TX queues when the internal SKB
queue is full. This helps handle TX better
under heavy load.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-31 14:46:40 -04:00
Sujith ef98c3cd9b ath9k_htc: Fix bug in aggregation initiation
Accessing the sta pointer in TX completion without
approprate RCU protection is wrong. Fix this.

Also, RCU protection is needed when the station's
aggregation state is updated. Handle this properly.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-31 14:46:39 -04:00
Sujith 0995d11011 ath9k_common: Move RX filter code to ath9k_htc
The calculation of RX filter is fairly different
between ath9k and ath9k_htc, trying to make this
common between the two drivers would result in code churn.

While at it, remove the handling of PSPOLL filter,
it can be added when(if) AP support is added to ath9k_htc.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-31 14:46:39 -04:00
Sujith e1572c5eec ath9k_htc: Fix symbol collision with ath9k
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-24 10:26:01 -04:00
Sujith fb9987d0f7 ath9k_htc: Support for AR9271 chipset.
Features:

 * Station mode
 * IBSS mode
 * Monitor mode
 * Legacy support
 * HT support
 * TX/RX 11n Aggregation
 * HW encryption
 * LED
 * Suspend/Resume

For more information: http://wireless.kernel.org/en/users/Drivers/ath9k_htc

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:17 -04:00