Commit Graph

208 Commits

Author SHA1 Message Date
Gabor Juhos
7da3c55ce8 ath9k: convert to use bus-agnostic DMA routines
Convert to use bus-agnostic DMA routines to make it usable on AHB bus as well.

Changes-licensed-under: ISC

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
Tested-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 16:00:29 -05:00
Gabor Juhos
f5870acb3a ath9k: convert to struct device
Convert 'struct pci_dev' to 'struct device' to make it usable on the AHB
bus as well.

Changes-licensed-under: ISC

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
Tested-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 16:00:29 -05:00
Jouni Malinen
07e74348c7 ath9k: Use a defined value for pci_set_power_state()
Silence sparse by using a defined value PCI_D3hot instead of a magic
constant in a pci_set_power_state() call.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 16:00:27 -05:00
Vasanthakumar Thiagarajan
138ab2e44e ath9k: Fix basic connectivity issue
This patch temporarily fixes a regression introduced by BT coexistence support.
There is an instability in connection when BT coexistence is enabled on some h/w.
This interim fix introduces a module parameter for BT coexistence configuration.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 16:00:21 -05:00
Jouni Malinen
0ced0e176a ath9k: Setup MFP options for CCMP
Configure hardware CCMP for management frame protection and use
software crypto when needed.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 16:00:10 -05:00
Jouni Malinen
ca470b2902 ath9k: Fix set_key error codes
Return -EOPNOTSUPP if the algorithm is not supported and -ENOSPC if
there is no room in the key cache. This avoids KERN_ERR printk in
mac80211 for "errors" that are actually expected to happen in normal
operating conditions.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 16:00:09 -05:00
Johannes Berg
4797938c5d mac80211: clean up channel type config
The channel_type really doesn't need to be the only member in
a new structure, so remove the struct. Additionally, remove
the _CONF_CHANGE_HT flag and use _CONF_CHANGE_CHANNEL when the
channel type changes, since that's enough of a change to require
reprogramming the hardware anyway.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 15:59:55 -05:00
Vasanthakumar Thiagarajan
c97c92d927 ath9k: Enable Bluetooth Coexistence support
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 15:59:46 -05:00
Gabor Juhos
295834fe36 ath9k: use signed format to print HAL status
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 15:59:43 -05:00
Johannes Berg
dc822b5db4 mac80211: clean up set_key callback
The set_key callback now seems rather odd, passing a MAC address
instead of a station struct, and a local address instead of a
vif struct. Change that.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Bob Copeland <me@bobcopeland.com> [ath5k]
Acked-by: Ivo van Doorn <ivdoorn@gmail.com> [rt2x00]
Acked-by: Christian Lamparter <chunkeey@web.de> [p54]
Tested-by: Kalle Valo <kalle.valo@nokia.com> [iwl3945]
Tested-by: Samuel Ortiz <samuel@sortiz.org> [iwl3945]
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 15:59:42 -05:00
Senthil Balasubramanian
cb33c4126b ath9k: INI update for Atheros AR9280 and AR9285 chipset.
Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 15:59:37 -05:00
Luis R. Rodriguez
a085ff718c ath9k: fix sparse warnings
Fix sparse warnings:

drivers/net/wireless/ath9k/hw.c:1850:17: warning: symbol 'tmp' shadows an earlier one
drivers/net/wireless/ath9k/hw.c:1713:6: originally declared here
drivers/net/wireless/ath9k/hw.c:2051:17: warning: symbol 'tmp' shadows an earlier one
drivers/net/wireless/ath9k/hw.c:1961:6: originally declared here

drivers/net/wireless/ath9k/eeprom.c:195:6: warning: symbol 'ath9k_fill_eeprom' was not declared. Should it be static?
drivers/net/wireless/ath9k/eeprom.c:463:5: warning: symbol 'ath9k_check_eeprom' was not declared. Should it be static?
drivers/net/wireless/ath9k/eeprom.c:1219:6: warning: symbol 'ath9k_hw_set_def_power_per_rate_table' was not declared. Should it be static?
drivers/net/wireless/ath9k/eeprom.c:1510:6: warning: symbol 'ath9k_hw_set_4k_power_per_rate_table' was not declared. Should it be static?
drivers/net/wireless/ath9k/eeprom.c:2007:5: warning: symbol 'ath9k_set_txpower' was not declared. Should it be static?
drivers/net/wireless/ath9k/eeprom.c:2106:6: warning: symbol 'ath9k_set_addac' was not declared. Should it be static?
drivers/net/wireless/ath9k/eeprom.c:2543:6: warning: symbol 'ath9k_eeprom_set_board_values' was not declared. Should it be static?
drivers/net/wireless/ath9k/eeprom.c:2606:5: warning: symbol 'ath9k_get_eeprom_antenna_cfg' was not declared. Should it be static?
drivers/net/wireless/ath9k/eeprom.c:2622:4: warning: symbol 'ath9k_hw_get_4k_num_ant_config' was not declared. Should it be static?
drivers/net/wireless/ath9k/eeprom.c:2628:4: warning: symbol 'ath9k_hw_get_def_num_ant_config' was not declared. Should it be static?
drivers/net/wireless/ath9k/eeprom.c:2647:4: warning: symbol 'ath9k_get_num_ant_config' was not declared. Should it be static?
drivers/net/wireless/ath9k/eeprom.c:2790:5: warning: symbol 'ath9k_get_eeprom' was not declared. Should it be static?

drivers/net/wireless/ath9k/calib.c:962:30: warning: symbol 'iq_cal_multi_sample' was not declared. Should it be static?
drivers/net/wireless/ath9k/calib.c:969:30: warning: symbol 'iq_cal_single_sample' was not declared. Should it be static?
drivers/net/wireless/ath9k/calib.c:976:30: warning: symbol 'adc_gain_cal_multi_sample' was not declared. Should it be static?
drivers/net/wireless/ath9k/calib.c:983:30: warning: symbol 'adc_gain_cal_single_sample' was not declared. Should it be static?
drivers/net/wireless/ath9k/calib.c:990:30: warning: symbol 'adc_dc_cal_multi_sample' was not declared. Should it be static?
drivers/net/wireless/ath9k/calib.c:997:30: warning: symbol 'adc_dc_cal_single_sample' was not declared. Should it be static?
drivers/net/wireless/ath9k/calib.c:1004:30: warning: symbol 'adc_init_dc_cal' was not declared. Should it be static?

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 15:59:35 -05:00
Luis R. Rodriguez
c0d7c7af0a ath9k: remove superfluous check on changing channel
When we try to change the channel in ath9k its because
either the configuration indicates we *have* changed
channels or HT configuration has changed. In both cases
we want to do a reset. Either way mac80211 will inform us
when we want to actually change the channel so trust those
calls.

Although in the patch it may seem as I am doing more code
changes I am not, all I am doing is removing the initial
branch conditional and shifting the code to the left.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 15:59:35 -05:00
Luis R. Rodriguez
0de57d991b ath9k: remove ath9k_hw_check_chan()
The only check we care about in ath9k_hw_check_chan() is
the internal regulatory check so use that.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 15:59:34 -05:00
Luis R. Rodriguez
4febf7b8f4 ath9k: remove ath9k_hw_chan2wmode()
The only left users are for timing for ACK timeout, slotime and
CTS timeout. We currently use an array CLOCK_RATE to keep
these values per mode and since as only will use A and G
we can depend on the band to get the appropriate values.

We note that we should be using a different clock rate value
for CCK, we can do this in separate patch, currently this is
being disregarded and should only affect when we want to
change the default ACK/CTS timeout or slot time and stuck
with using using 802.11b.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 15:59:34 -05:00
Luis R. Rodriguez
e56db71846 ath9k: remove mode specific default noise floor values
The NOISE_FLOOR array we have is mode specific, and the only
possible indexed values are A, B and G. The mode routine only
can return G or A, so this is band specific. Then since the
values for A and G (5ghz or 2ghz) are the same (-96) we simply
remove the array and use a static value.

If we later determine we want to use special values for
HT configurations we can use the new mac80211 conf_is_ht*()
helpers.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 15:59:33 -05:00
Luis R. Rodriguez
38b33707a1 ath9k: Make ANI CCK and OFDM error triggers band specific
The CCK and OFDM ANI error triggers are not mode specific but rather
band specific so just make use of the already available band from
ieee80211_conf.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 15:59:33 -05:00
Luis R. Rodriguez
ecf70441a3 ath9k: make use of conf_is_ht*() in the rest of the driver
Use shiny new conf_is_ht*() helpers, we can later remove ht.enabled if
desired.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 15:59:31 -05:00
Luis R. Rodriguez
c9e27d94f5 ath9k: use ieee80211_conf on ath9k_hw_iscal_supported()
ath9k_hw_iscal_supported() just needs to be aware of your band
and if HT20 is being used so lets abandon our internal channel,
HT appended values and internal mode values and use ieee80211_conf
which already carries this information. This works as calibration
is being done for the currently configured channel.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 15:59:31 -05:00
Luis R. Rodriguez
76061abbbb ath9k: make request to get the noisefloor threshold band specific
Lets make the request to get the current noise floor threshold
from the EEPROM band specific as it is band specific, not mode
specific.

This also adds a backpointer on the private channel structure
back to the ieee80211_channel structure as this is now needed during
ath9k_hw_getnf().

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 15:59:30 -05:00
Luis R. Rodriguez
ae8d2858c5 ath9k: consolidate arguments on hw reset
HW reset calls pass the same variables or structs
which we can obtain easily from ah. Although this also applies
during channel changes as we will keep around the ath9k_channel
passed as an argument for now.

We now also now propagate the hw reset errors down.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 15:59:29 -05:00
Luis R. Rodriguez
ce111badf5 ath9k: Rename ath_setcurmode() to ath_cache_conf_rate()
ath_setcurmode() is a bit misleading, all we are doing is
caching the rate for the corresponding configuration we
are using.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 15:59:29 -05:00
Luis R. Rodriguez
96742256ab ath9k: remove cache of rate preference when using 11g protection
No need to cache when we want to use 2Mbit/s for all protection
frames for 802.11g as we can determine that dynamically on
ath_buf_set_rate() itself.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 15:59:28 -05:00
Luis R. Rodriguez
030bb495c0 ath9k: use hw->conf on ath_setcurmode()
We don't need to use our own mode for setting the
the routine tries to do, in fact lets remove ath_chan2mode() now as
we can simply use the currently set band and the HT configuration
provided by mac80211 through the ieee80211_conf. This works on
changing channels as well as the internal ath9k_channel we use is
based on the ieee80211_channel in the config.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29 15:59:28 -05:00
Jouni Malinen
9d97f2e55e ath9k: Fix an operator typo in REG_DOMAIN_2GHZ_MASK
Incorrect operator causes the REG_DOMAIN_2GHZ_MASK to be zero which
surely was not the goal of this definition. Mask out the 11a flags
correctly.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-16 17:08:23 -05:00
Jouni Malinen
b657eade2f ath9k: Fix an operator typo in phy rate validation
This was not supposed to be a bitwise AND operation, but a check of
two separate conditions. Anyway, the old code happened to result in
the same behavior, so this is just changing the code to be easier to
understand and also to keep sparse from warning about dubious
operators.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-16 17:08:23 -05:00
Jouni Malinen
157ec87684 ath9k: Revert fix to TX status reporting for retries and MCS index
This patch reverts "ath9k: Fix TX status reporting for retries and MCS index"
because that change ended up breaking ath9k rate control. While the
MCS index reporting to mac80211 was indeed fixed by the patch, it did
not take into account that the ath9k rate control algorithm was
updating private tables based on this index and the index comes
through the rate control API call, i.e., based on mac80211 TX status
call. In addition, it looks like the "fix" to remove +1 from TX status
'count' field was not correct based on ieee80211_tx_status()
implementation that counts the total of count values, but starting
from -1, not 0.

The TX status reporting for frames using MCS needs to be fixed
somehow, but it does not look like there is any easy fix for the ath9k
rate control algorithm, so the best option now seems to be to revert the
change and bring it back once the rate control code is cleaned up to
handle this better.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-12 14:24:55 -05:00
Senthil Balasubramanian
d3a1db1c67 ath9k: Fix incorrect sequence numbering for unaggregated QoS Frame.
This patch fixes an issue with the sequence numbers of unaggregated
QoS frames, because of which the frames are handled in a different order
at the AP and resulted in MLME REPLAYFAILURE.

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-12 14:24:55 -05:00
Sujith
86060f0d69 ath9k: Fix chainmask handling bug
The chainmasks have to be updated before setting the channel,
since the HW reset routine uses them to set the appropriate registers.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-12 14:24:51 -05:00
Jouni Malinen
176ddc7dcf ath9k: Enforce module build if rfkill is a module
CONFIG_ATH9K=y results in build issues if CONFIG_RFKILL=m since ath9k
does not depend on rfkill in kconfig (i.e., CONFIG_RFKILL is used to
select whether to enable rfkill in ath9k), but uses its functions if
rfkill is enabled. Enforce ath9k to be build as a module if
CONFIG_RFKILL=m to avoid this invalid configuration.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-12 14:24:50 -05:00
Hannes Eder
bf512bc827 drivers/net/wireless/ath9k: fix sparse warnings: make symbols static
Fix this sparse warnings:

  drivers/net/wireless/ath9k/eeprom.c:195:6: warning: symbol 'ath9k_fill_eeprom' was not declared. Should it be static?
  drivers/net/wireless/ath9k/eeprom.c:463:5: warning: symbol 'ath9k_check_eeprom' was not declared. Should it be static?
  drivers/net/wireless/ath9k/eeprom.c:1219:6: warning: symbol 'ath9k_hw_set_def_power_per_rate_table' was not declared. Should it be static?
  drivers/net/wireless/ath9k/eeprom.c:1510:6: warning: symbol 'ath9k_hw_set_4k_power_per_rate_table' was not declared. Should it be static?
  drivers/net/wireless/ath9k/eeprom.c:2007:5: warning: symbol 'ath9k_set_txpower' was not declared. Should it be static?
  drivers/net/wireless/ath9k/eeprom.c:2106:6: warning: symbol 'ath9k_set_addac' was not declared. Should it be static?
  drivers/net/wireless/ath9k/eeprom.c:2543:6: warning: symbol 'ath9k_eeprom_set_board_values' was not declared. Should it be static?
  drivers/net/wireless/ath9k/eeprom.c:2606:5: warning: symbol 'ath9k_get_eeprom_antenna_cfg' was not declared. Should it be static?
  drivers/net/wireless/ath9k/eeprom.c:2622:4: warning: symbol 'ath9k_hw_get_4k_num_ant_config' was not declared. Should it be static?
  drivers/net/wireless/ath9k/eeprom.c:2628:4: warning: symbol 'ath9k_hw_get_def_num_ant_config' was not declared. Should it be static?
  drivers/net/wireless/ath9k/eeprom.c:2647:4: warning: symbol 'ath9k_get_num_ant_config' was not declared. Should it be static?
  drivers/net/wireless/ath9k/eeprom.c:2790:5: warning: symbol 'ath9k_get_eeprom' was not declared. Should it be static?

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-26 00:13:29 -08:00
Jouni Malinen
be2864cfff ath9k: Fixed RX decryption status reporting
The RX code in ath9k uses sc_keymap to figure out whether a default
key was used. However, the default key entries in sc_keymap were
always set and as such, frames could have been claimed to be decrypted
by hardware when they were not. This can cause problems especially
with TKIP since mac80211 is validating the Michael MIC in the frame
and this will result in MIC failure and potentially TKIP
countermeasures if the frame was not decrypted correctly.

Change key cache slot allocation to mark only the keys that really
have been used in sc_keymap to avoid the issue. The key cache slot
selection routines are now internally avoiding the slots that may be
needed for TKIP group keys.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-19 15:23:53 -05:00
Jouni Malinen
ea61213288 ath9k: Fix key cache slot selection for splitmic
ath_reserve_key_cache_slot() was obviously supposed to return an index
to a free slot, not reserved one. This could have caused problems with
hardware revisions that use splitmic.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-19 15:23:51 -05:00
Sujith
aa33de09a8 ath9k: Protect config() callback with a mutex
This should fix the timeout issues seen when using wpa_supplicant.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-19 15:23:50 -05:00
Jouni Malinen
6ace2891a1 ath9k: Key cache allocation for AP mode
Enhance allocation of key cache entries to support multiple pairwise
keys to fix AP mode with more than one associated STA.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-19 15:23:46 -05:00
Jouni Malinen
f66000f7a3 ath9k: Fix a NULL pointer dereference in ath_rate_get
It looks like mac80211 may try to send unicast frames to a STA that
does not have a STA entry. We need to make sure that that is caught in
the rate control code before dereferencing STA data.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-19 15:23:44 -05:00
Vasanthakumar Thiagarajan
ca8a856056 ath9k: Move rate control alg register/unregister to appropriate place
This patch makes sure the rate control alg is registered/unregistered
only once for this module.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-19 15:23:27 -05:00
Vasanthakumar Thiagarajan
9bf9fca8de ath9k: Synchronize DMA transfer with CPU at right place
This patch does pci_dma_sync_single_for_cpu() before accessing
the header of the frame and queueing the same buffer into h/w.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-19 15:23:26 -05:00
Jouni Malinen
f7a276a625 ath9k: Remove MAC header pad before reporting TX status
Remove the possible MAC header pad before reporting TX status to
mac80211. This pad is hardware specific operation and should not be
exposed outside the driver. This fixes the frame body in monitor
interfaces that could be used to check on TX status for transmitted
frames.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-19 15:23:24 -05:00
Jouni Malinen
da027ca00a ath9k: Fix TX status reporting for retries and MCS index
The count field in struct ieee80211_tx_rate does not include the final
successful attempt, so only report retries here.

Fix the struct ieee80211_tx_rate::idx field when MCS was used. It is
supposed to be the MCS index, not an internal index to the rate
control algorithm table.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-19 15:23:23 -05:00
Jouni Malinen
baad1d921b ath9k: Report HT rates in RX status
Fix and clean up the RX status reporting by getting rid of code that
used internal rate tables and ratekbps calculation. The correct value
is now reported with MCS index instead of the old mechanism that
defaulted to using the highest legacy rate.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-19 15:23:06 -05:00
Sujith
9d8eed12db ath9k: Do not use association state to update rate table
Now that HT information is made available to the driver through
config() callback, the channel type can be calculated whenever
setting the channel. Update the rate table accordingly with the new
channel type.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-19 15:23:02 -05:00
Sujith
094d05dc32 mac80211: Fix HT channel selection
HT management is done differently for AP and STA modes, unify
to just the ->config() callback since HT is fundamentally a
PHY property and cannot be per-BSS.

Rename enum nl80211_sec_chan_offset as nl80211_channel_type to denote
the channel type ( NO_HT, HT20, HT40+, HT40- ).

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-19 15:22:54 -05:00
Jouni Malinen
9c5f89b3f6 ath9k: Do not remove header padding on RX from short frames
The 802.11 header is only padded to 32-bit boundary when the frame has
a non-zero length payload. In other words, control frames (e.g., ACK)
do not have a padding and we should not try to remove it. This fixes
monitor mode for short control frames. In addition, the hdrlen&3 use
is described in more detail to make it easier to understand how the
padding length is calculated.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-12 14:45:31 -05:00
Sujith
b77f483fcf ath9k: Refactor struct ath_softc
Split ath_softc into smaller structures for rx, tx and beacon
handling.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-12 14:02:17 -05:00
Senthil Balasubramanian
a07d3619fa ath9k: BH shouldn't be enabled when hardirqs are disabled.
ath_tx_complete_buf uses a BH version of spinlock and so releasing
the lock enables BH which is incorrect when called from sta_notify
callback as MAC80211 disables hardirqs before the driver callback
is called.

As ath_tx_complete_buf is shared between user and softirq context
using normal spinlock may not be appropriate. Though the proper
fix would be to cleanup the context properly in the driver code,
this would be an interim fix to avoid kernel warning.

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-12 14:01:37 -05:00
Johannes Berg
e4f2a3458f ath9k: remove fragmentation workaround again
Looking at the RC algorithm this is no longer necessary.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-12 14:01:31 -05:00
Senthil Balasubramanian
8aa15e1506 ath9k: avoid rx frames with corrupted descriptor.
Setting RX_ABORT/RX_DIS after MAC reset and clearing RX_ABORT/RX_DIS
after enbling RXE/RXDP to avoid rx frames with corrupted descriptor
status.

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-12 13:48:30 -05:00
Senthil Balasubramanian
2df1bff4c5 ath9k: Incorrect band enum causes invalid antenna configuration.
It's a regression from the patch titled "ath9k: Use mac80211's band
macros and remove enum hal_freq_band". MAC80211 band macros can't be
mapped directly with our hal band enum.

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-12 13:48:27 -05:00
Senthil Balasubramanian
e7594072a5 ath9k: Adding support for Atheros AR9285 chipset.
Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-12-12 13:48:26 -05:00