Commit Graph

27 Commits

Author SHA1 Message Date
Felix Fietkau 55821324dc ath9k_hw: remove baseband rfsilent support
When rfkill is enabled, ath9k_hw unnecessarily configured the baseband to
turn off based on GPIO input, however that code was hardcoded to GPIO 0
instead of ah->rfkill_gpio.
Since ath9k uses software rfkill anyway, this code is completely unnecessary
and should be removed in case anything else ever uses GPIO 0.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-12-20 14:49:48 -05:00
Joe Perches 226afe68fd ath: Convert ath_print to ath_dbg
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>
2010-12-07 16:34:48 -05:00
Joe Perches 3800276a40 ath: Convert ath_print(.., ATH_DBG_FATAL to ath_err
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>
2010-12-07 16:34:47 -05:00
Joe Perches 07b2fa5a23 ath9k: Use static const
Using static const generally increases object text and decreases data size.
It also generally decreases overall object size.

   text	   data	    bss	    dec	    hex	filename
  11161	     56	   2136	  13353	   3429	drivers/net/wireless/ath/ath9k/ar9003_paprd.o.new
  11167	     56	   2136	  13359	   342f	drivers/net/wireless/ath/ath9k/ar9003_paprd.o.old
  15428	     56	   3056	  18540	   486c	drivers/net/wireless/ath/ath9k/eeprom_4k.o.old
  15451	     56	   3056	  18563	   4883	drivers/net/wireless/ath/ath9k/eeprom_4k.o.new
  14087	     56	   2560	  16703	   413f	drivers/net/wireless/ath/ath9k/eeprom_9287.o.old
  14036	     56	   2560	  16652	   410c	drivers/net/wireless/ath/ath9k/eeprom_9287.o.new
  10041	     56	   2384	  12481	   30c1	drivers/net/wireless/ath/ath9k/ani.o.new
  10088	     56	   2384	  12528	   30f0	drivers/net/wireless/ath/ath9k/ani.o.old
   9316	   1580	   2304	  13200	   3390	drivers/net/wireless/ath/ath9k/htc_drv_init.o.new
   9316	   1580	   2304	  13200	   3390	drivers/net/wireless/ath/ath9k/htc_drv_init.o.old
  16483	     56	   3432	  19971	   4e03	drivers/net/wireless/ath/ath9k/ar9003_phy.o.new
  16517	     56	   3432	  20005	   4e25	drivers/net/wireless/ath/ath9k/ar9003_phy.o.old
  18221	    104	   2960	  21285	   5325	drivers/net/wireless/ath/ath9k/rc.o.old
  18203	    104	   2960	  21267	   5313	drivers/net/wireless/ath/ath9k/rc.o.new
  19985	     56	   4288	  24329	   5f09	drivers/net/wireless/ath/ath9k/eeprom_def.o.new
  20040	     56	   4288	  24384	   5f40	drivers/net/wireless/ath/ath9k/eeprom_def.o.old
  23997	     56	   4984	  29037	   716d	drivers/net/wireless/ath/ath9k/ar5008_phy.o.old
  23846	     56	   4984	  28886	   70d6	drivers/net/wireless/ath/ath9k/ar5008_phy.o.new
  24285	     56	   3184	  27525	   6b85	drivers/net/wireless/ath/ath9k/ar9003_eeprom.o.old
  24101	     56	   3184	  27341	   6acd	drivers/net/wireless/ath/ath9k/ar9003_eeprom.o.new
   6834	     56	   1032	   7922	   1ef2	drivers/net/wireless/ath/ath9k/ar9002_phy.o.old
   6780	     56	   1032	   7868	   1ebc	drivers/net/wireless/ath/ath9k/ar9002_phy.o.new
  36211	     64	   8624	  44899	   af63	drivers/net/wireless/ath/ath9k/hw.o.new
  36401	     64	   8624	  45089	   b021	drivers/net/wireless/ath/ath9k/hw.o.old
   9281	     56	   1496	  10833	   2a51	drivers/net/wireless/ath/ath9k/ar9003_calib.o.old
   9150	     56	   1496	  10702	   29ce	drivers/net/wireless/ath/ath9k/ar9003_calib.o.new

Use ARRAY_SIZE instead of a magic number.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-22 15:58:44 -05:00
Felix Fietkau c5d0855acf ath9k_hw: set default values for radar pulse detection
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-17 16:19:01 -05:00
Felix Fietkau 4e8c14e958 ath9k_hw: add a private op for configuring radar pulse detection
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-16 16:37:08 -05:00
Andreas Herrmann 7919a57bc6 bitops: Provide generic sign_extend32 function
This patch moves code out from wireless drivers where two different
functions are defined in three code locations for the same purpose and
provides a common function to sign extend a 32-bit value.

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-15 13:27:04 -05:00
Felix Fietkau de40f316c0 ath9k_hw: extend ath9k_hw_set_txpowerlimit to test channel txpower
ath9k_hw_set_txpowerlimit gets an extra boolean parameter that - if set -
causes the rate txpower table and the regulatory limit to be calculated
and stored, without changing hardware registers.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-15 13:23:14 -05:00
Felix Fietkau 093115b7fd ath9k_hw: clean up ANI state handling
ANI state is kept per channel, so instead of keeping an array of ANI states
with an arbitrary size of 255, move the ANI state into the channel struct.

Move some config settings that are not per-channel out of
the per-channel struct to save some memory.

With those changes, ath9k_ani_restart_old and ath9k_ani_restart_new can
be merged into a single function.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-10-06 16:30:39 -04:00
Felix Fietkau 435c1610f4 ath9k_hw: clean up register write buffering
Throughout the code, DISABLE_REGWRITE_BUFFER is always called right after
REGWRITE_BUFFER_FLUSH. Since that's unlikely to change any time soon, that
makes keeping those ops separate rather pointless, as it only increases
code size and line number counts.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-10-06 16:30:38 -04:00
Felix Fietkau 9dbebc7fd0 ath9k_hw: merge codepaths that access the cycle counter registers
The cycle counters are used by ANI to determine the amount of time that the
radio spent not receiving or transmitting. They're also used for debugging
purposes if the baseband watchdog on AR9003 detects a lockup.
In the future, we want to use these counters to determine the medium utilization
and export this information via survey. For that, we need to make sure that
the counter is only accessed from one place, which also ensures that
wraparounds won't occur at inconvenient points in time.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-10-06 16:26:01 -04:00
Felix Fietkau a42acef0dd ath9k_hw: simplify revision checks for AR9287
Since AR9287 v1.0 was never sold (and the initvals removed), its revision
checks can be simplified similar to AR9280

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-27 15:57:42 -04:00
Felix Fietkau e17f83eafd ath9k_hw: simplify revision checks for AR9285
Since AR9285 v1.0 and v1.1 were never sold (and the initvals removed),
its revision checks can be simplified similar to AR9280

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-27 15:57:41 -04:00
Felix Fietkau 7a37081e2e ath9k_hw: simplify revision checks for AR9280
Since AR9280 v1.0 was never sold (and the initvals removed), v1.0 specific
revision checks can be removed and the 'v2.0 or later' check can be
simplified to a check for AR9280 or later.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-27 15:57:39 -04:00
Felix Fietkau 866b7780fc ath9k_hw: fix invalid extension channel noisefloor readings in HT20
When the hardware is configured in HT20 mode, noise floor readings for
the extension channel often return invalid values, which keep the
values in the NF history buffer at the hardware-specific maximum limit.
Fix this by discarding the extension channel values when in HT20 mode.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-26 15:32:42 -04:00
Felix Fietkau bbacee13f4 ath9k: merge noisefloor load implementations
AR5008+ and AR9003 currently use two separate implementations of the
ath9k_hw_loadnf function. There are three main differences:

 - PHY registers for AR9003 are different
 - AR9003 always uses 3 chains, earlier versions are more selective
 - The AR9003 variant contains a fix for NF load timeouts

This patch merges the two implementations into one, storing the
register array in the ath_hw struct. The fix for NF load timeouts is
not just relevant for AR9003, but also important for earlier hardware,
so it's better to just keep one common implementation.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-12 16:05:39 -04:00
Felix Fietkau 54bd5006b0 ath9k_hw: clean up the noise floor calibration code to reduce code duplication
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-02 13:44:37 -04:00
Felix Fietkau f2552e2837 ath9k_hw: sanitize noise floor values properly on all chips
This refactors the noise floor range checks to make them generic,
and adds proper ranges for each supported chip type.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-02 13:44:36 -04:00
Luis R. Rodriguez e36b27aff1 ath9k: add new ANI implementation for AR9003
This adds support for ANI for AR9003. The implementation for
ANI for AR9003 is slightly different than the one used for
the older chipset families. It can technically be used for
the older families as well but this is not yet fully tested
so we only enable the new ANI for the AR5008, AR9001 and AR9002
families with a module parameter, force_new_ani.

The old ANI implementation is left intact.

Details of the new ANI implemention:

  * ANI adjustment logic is now table driven so that each ANI level
    setting is parameterized. This makes adjustments much more
    deterministic than the old procedure based logic and allows
    adjustments to be made incrementally to several parameters per
    level.

  * ANI register settings are now relative to INI values; so ANI
    param zero level == INI value. Appropriate floor and ceiling
    values are obeyed when adjustments are combined with INI values.

  * ANI processing is done once per second rather that every 100ms.
    The poll interval is now a set upon hardware initialization and
    can be picked up by the core driver.

  * OFDM error and CCK error processing are made in a round robin
    fashion rather than allowing all OFDM adjustments to be made
    before CCK adjustments.

  * ANI adjusts MRC CCK off in the presence of high CCK errors

  * When adjusting spur immunity (SI) and OFDM weak signal detection,
    ANI now sets register values for the extension channel too

  * When adjusting FIR step (ST), ANI now sets register for FIR step
    low too

  * FIR step adjustments now allow for an extra level of immunity for
    extremely noisy environments

  * The old Noise immunity setting (NI), which changes coarse low, size
    desired, etc have been removed. Changing these settings could affect
    up RIFS RX as well.

  * CCK weak signal adjustment is no longer used

  * ANI no longer enables phy error interrupts; in all cases phy hw
    counting registers are used instead

  * The phy error count (overflow) interrupts are also no longer used
    for ANI adjustments. All ANI adjustments are made via the polling
    routine and no adjustments are possible in the ISR context anymore

  * A history settings buffer is now correctly used for each channel;
    channel settings are initialized with the defaults but later
    changes are restored when returning back to that channel

  * When scanning, ANI is disabled settings are returned to (INI) defaults.

  * OFDM phy error thresholds are now 400 & 1000 (errors/second units) for
    low/high water marks, providing increased stability/hysteresis when
    changing levels.

  * Similarly CCK phy error thresholds are now 300 & 600 (errors/second)

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-14 15:39:29 -04:00
Sujith e9141f71f4 ath9k_hw: Fix async fifo for AR9287
Async fifo is now enabled only for versions 1.3 and above.
Enable it in the appropriate place, in the reset routine,
instead of process_ini().

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-03 14:10:46 -04:00
Felix Fietkau 6b42e8d03b ath9k_hw: fix fast clock handling for 5GHz channels
Combine multiple checks that were supposed to check for the same
conditions, but didn't. Always enable fast PLL clock on AR9280 2.0

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-27 16:09:18 -04:00
Sujith 7d0d0df0ec ath9k_hw: Use buffered register writes
This patch adds macros at certain places
which could be optimized for multiple register writes.

The performance of ath9k_htc improves considerably,
especially reducing the latency involved in a scan run.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-16 15:47:09 -04:00
Luis R. Rodriguez 77d6d39a77 ath9k_hw: abstract loading noisefloor
This is the last call on calib.c which acceses PHY stuff,
with this change we calib.c is now generic between both
all supported hardware families.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-16 15:43:34 -04:00
Felix Fietkau 641d99217f ath9k_hw: Split out the function for reading the noise floor
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-16 15:43:27 -04:00
Felix Fietkau c16fcb49b3 ath9k_hw: Split off ANI control to the PHY ops
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-16 15:43:25 -04:00
Luis R. Rodriguez 647739645b ath9k_hw: add a private callback for PLL control computation
The PLL control computation used to program the AR_RTC_PLL_CONTROL
register varies between our harware so just add a private callback for it.
AR9003 will use its own callback.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-16 15:43:19 -04:00
Luis R. Rodriguez 8fe6536850 ath9k_hw: Move some RF ops to the private callbacks
The PHY split is easier done in a few steps. First move
the RF ops to the private ops and rename them accordingly.
We split PHY stuff up first for the AR5008 and AR9002
families. There are some callbacks that AR9002 share
with the AR5008 familiy so we set those first, if AR9002
has some different callbacks it will override them upon
hardware init.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-16 15:43:19 -04:00