Commit Graph

23 Commits

Author SHA1 Message Date
Vivek Natarajan 0b98eaaa02 ath9k: Add Calibration checks
* Prevent divide-by-zero errors in IQ Calibration.
* Do not run temperature compensation if initPDADC or currPDADC is zero.
* Also, introduce a separate function for handling OLC for AR9287.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:38 -04:00
Luis R. Rodriguez cfe8cba982 ath9k: clarify what hw code is and remove ath9k.h from a few files
hw code will be shared between ath9k and ath9k_htc.
Just a few more files are left to clean up, mark them as well.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:30 -04:00
Luis R. Rodriguez c46917bb53 atheros: add common debug printing
ath9k uses this for now, ath9k_htc is expected to re-use this
as well. We lave ath5k as is, but it certainly can also be
converted later.

The ath9k module parameter and debugfs entry is kept.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:29 -04:00
Luis R. Rodriguez b002a4a950 atheros: add ieee80211_hw to ath_common
Make use of it on hw code in ath9k to avoid
using the ath9k ath_softc.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:28 -04:00
Luis R. Rodriguez 4d6b228d84 ath9k: use ath_hw for DPRINTF() and debug init/exit
DPRINTF() is used in hw specific related code, as such
ensure we don't rely on the private driver core ath_softc
struct when calling it. Drivers can then implement their
own DPRINTF() as they see fit.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:19 -04:00
Sujith edbf51f65e ath9k: Fix regression in PA calibration
The commit "ath9k: Fix bugs in programming registers during PA CAL"
removed a REG_READ of 0x7834. This resulted in incorrect
computation of the subsequent value to be written in RF2G6.

This patch fixes the regression by re-adding the REG_READ.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:52 -04:00
Senthil Balasubramanian ce143bb044 ath9k: Adjust the chainmasks properly
This is needed to account for the number of chains in use,
not just the number of chains present.

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:52 -04:00
Vivek Natarajan 6170cd5c72 ath9k: Set default noise floor value for AR9287
The default noise floor was never initialized for
AR9287.This patch helps in reporting the correct
RSSI for this version of chipset.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:45 -04:00
Sujith 20caf0dd41 ath9k: Handle PA cal usage properly
PA Calibration is not needed for high power solutions.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:47 -04:00
Sujith 0abb096879 ath9k: Fix bugs in programming registers during PA CAL
* First PA driver (PDPADRV1) was not powered down properly.
* Compensation capacitor for dynamic PA was programmed incorrectly.

Also, remove a stray REG_READ.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:47 -04:00
Sujith a13883b0bf ath9k: Reduce the frequency of PA offset calibration
PA calibration need not be done if the offset is not varying.
The current logic does PA calibration even if the offset is the
same.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:46 -04:00
Vivek Natarajan db91f2e4d4 ath9k: Add open loop power control support for AR9287.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20 11:35:51 -04:00
Luis R. Rodriguez d7e7d229c7 ath9k: add initial hardware support for ar9271
We will finalize this after some driver core changes, for now
we leave this unsupported.

Cc: Stephen Chen <stephen.chen@atheros.com>
Cc: Zhifeng Cai <zhifeng.cai@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:34 -04:00
Vivek Natarajan ac88b6ecdf ath9k: Add support for AR9287 based chipsets.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-27 15:24:19 -04:00
Senthil Balasubramanian a59b5a5e68 ath9k: Manipulate and report the correct RSSI
RSSI reported by the RX descriptor requires little manipulation.
Manipulate and report the correct RSSI to the stack. This will
fix the improper signal levels reported by iwconfig iw dev wlanX
station dump. Also the Link Quality reported seems to be varying
(falls to zero also sometimes) when iperf is run from STA to AP.

Also use the default noise floor for now as the one reported
during the caliberation seems to be wrong.

The Signal and Link Quality before this patch (taken while TX is
in progress from STA to AP)

09:59:13.285428037 Link Quality=29/70  Signal level=-81 dBm
09:59:13.410660084 Link Quality=20/70  Signal level=-90 dBm
09:59:13.586864392 Link Quality=21/70  Signal level=-89 dBm
09:59:13.710296281 Link Quality=21/70  Signal level=-89 dBm
09:59:13.821683064 Link Quality=25/70  Signal level=-85 dBm
09:59:13.933402989 Link Quality=24/70  Signal level=-86 dBm
09:59:14.045839276 Link Quality=26/70  Signal level=-84 dBm
09:59:14.193926673 Link Quality=23/70  Signal level=-87 dBm
09:59:14.306230262 Link Quality=31/70  Signal level=-79 dBm
09:59:14.419459667 Link Quality=26/70  Signal level=-84 dBm
09:59:14.530711167 Link Quality=37/70  Signal level=-73 dBm
09:59:14.642593962 Link Quality=29/70  Signal level=-81 dBm
09:59:14.754361169 Link Quality=21/70  Signal level=-89 dBm
09:59:14.866217355 Link Quality=21/70  Signal level=-89 dBm
09:59:14.976963623 Link Quality=28/70  Signal level=-82 dBm
09:59:15.089149809 Link Quality=26/70  Signal level=-84 dBm
09:59:15.205039887 Link Quality=27/70  Signal level=-83 dBm
09:59:15.316368003 Link Quality=23/70  Signal level=-87 dBm
09:59:15.427684036 Link Quality=36/70  Signal level=-74 dBm
09:59:15.539756380 Link Quality=21/70  Signal level=-89 dBm
09:59:15.650549093 Link Quality=22/70  Signal level=-88 dBm
09:59:15.761171672 Link Quality=32/70  Signal level=-78 dBm
09:59:15.872793750 Link Quality=23/70  Signal level=-87 dBm
09:59:15.984421694 Link Quality=22/70  Signal level=-88 dBm
09:59:16.097315093 Link Quality=21/70  Signal level=-89 dBm

The link quality and signal level after this patch (take while
TX is in progress from STA to AP)

17:21:25.627848091 Link Quality=65/70  Signal level=-45 dBm
17:21:25.762805607 Link Quality=65/70  Signal level=-45 dBm
17:21:25.875521888 Link Quality=66/70  Signal level=-44 dBm
17:21:25.987468448 Link Quality=66/70  Signal level=-44 dBm
17:21:26.100628151 Link Quality=66/70  Signal level=-44 dBm
17:21:26.213129671 Link Quality=66/70  Signal level=-44 dBm
17:21:26.324923070 Link Quality=65/70  Signal level=-45 dBm
17:21:26.436831357 Link Quality=65/70  Signal level=-45 dBm
17:21:26.610356973 Link Quality=65/70  Signal level=-45 dBm
17:21:26.723340047 Link Quality=65/70  Signal level=-45 dBm
17:21:26.835715293 Link Quality=64/70  Signal level=-46 dBm
17:21:26.949542748 Link Quality=64/70  Signal level=-46 dBm
17:21:27.062261613 Link Quality=65/70  Signal level=-45 dBm
17:21:27.174511563 Link Quality=64/70  Signal level=-46 dBm
17:21:27.287616232 Link Quality=64/70  Signal level=-46 dBm
17:21:27.400598119 Link Quality=64/70  Signal level=-46 dBm
17:21:27.511381404 Link Quality=64/70  Signal level=-46 dBm
17:21:27.624530421 Link Quality=65/70  Signal level=-45 dBm
17:21:27.737807109 Link Quality=64/70  Signal level=-46 dBm
17:21:27.850861352 Link Quality=65/70  Signal level=-45 dBm
17:21:27.963369436 Link Quality=64/70  Signal level=-46 dBm
17:21:28.076582289 Link Quality=64/70  Signal level=-46 dBm

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:17 -04:00
Gabor Juhos f9dd6b5287 ath9k: remove redundant AR9285 checks
The AR_SREV_9285_1[12]_OR_LATER macros already contains the
AR_SREV_9285 check.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-05-06 15:15:06 -04:00
Sujith 386aeacfa8 ath9k: Remove CHANNEL_CW_INT handling in ath9k_hw_calibrate
It is already handled properly in ath9k_hw_getnf.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-22 16:54:47 -04:00
Sujith 04d19ddd25 ath9k: Fix bug in calibration initialization
This patch fixes a bug in ath9k_hw_init_cal() where the wrong
calibration was being done for non-AR9285 chipsets.
Also add a few helpful comments.

Cc: stable@kernel.org
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-22 16:54:46 -04:00
Sujith cbfe946860 ath9k: Use a consistent naming convention
This patch replaces old 'hal_' prefixes with 'ath9k_'.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-22 16:54:46 -04:00
Sujith 379f04407c ath9k: Cleanup calibration interface
This patch cleans up the functions dealing with calibration,
using proper return values.
ath9k_hw_per_calibration(), ath9k_hw_calibrate now return bool values
instead of setting error values in the function arguments.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-22 16:54:46 -04:00
Sujith a451aa66dc ath9k: Fix bug in determining calibration support
ADC gain calibration has to be done for all non 2GHZ-HT20 channels.
Regression from "ath9k: use ieee80211_conf on ath9k_hw_iscal_supported()"

Cc: stable@kernel.org
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-22 16:54:46 -04:00
Sujith db2f63f60a ath9k: Fix bug in checking HT flag
The operating HT mode is stored in chanmode and
not channelFlags.

Cc: stable@kernel.org
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-22 16:54:46 -04:00
Luis R. Rodriguez 203c4805e9 atheros: put atheros wireless drivers into ath/
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-22 16:54:38 -04:00