Commit Graph

188530 Commits (9345471bca96d00d4196b3dcc4a5625f1bfae247)

Author SHA1 Message Date
Frans Pop a570f095ea tipc: remove trailing space in messages
Signed-off-by: Frans Pop <elendil@planet.nl>
Cc: Per Liden <per.liden@ericsson.com>
Cc: Jon Maloy <jon.maloy@ericsson.com>
Cc: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-24 14:01:54 -07:00
Frans Pop b138338056 net: remove trailing space in messages
Signed-off-by: Frans Pop <elendil@planet.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-24 14:01:54 -07:00
Dan Carpenter 18062ca947 rds: cleanup: remove unneeded variable
We never use "sk" so this patch removes it.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-24 13:34:09 -07:00
Dan Carpenter a424077a0a wimax: remove unneeded variable
We never actually use "dev" so I removed it.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-24 13:34:09 -07:00
Dan Carpenter a3dcce97b2 llc: cleanup: remove dead code from llc_init()
We don't need "dev" any more after:
	a5a04819c5
	[LLC]: station source mac address

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-24 13:34:08 -07:00
Dan Carpenter 14b44974d5 mac80211: remove unneed variable from ieee80211_tx_pending()
We don't need "sdata" any more after:
	d84f323477
	mac80211: remove dev_hold/put calls

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-24 16:04:33 -04:00
Juuso Oikarinen 4ac5541bda cfg80211: Improve connection quality maintenance docs in nl80211.h
In nl80211.h, be a little more elaborate in the docs for the definitions
NL80211_ATTR_CQM_RSSI_THOLD and NL80211_ATTR_CQM_RSSI_HYST.

Reported-by: Luis R. Rodriguez <mcgrof@gmail.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-24 16:04:33 -04:00
Juuso Oikarinen a97c13c345 mac80211: Add support for connection quality monitoring
Add support for the set_cqm_config op. This op function configures the
requested connection quality monitor rssi threshold and rssi hysteresis
values to the hardware  if the hardware supports
IEEE80211_HW_SUPPORTS_CQM.

For unsupported hardware, currently -EOPNOTSUPP is returned, so the mac80211
is currently not doing connection quality monitoring on the host. This could be
added later, if needed.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-24 16:04:33 -04:00
Juuso Oikarinen d6dc1a3863 cfg80211: Add connection quality monitoring support to nl80211
Add support for basic configuration of a connection quality monitoring to the
nl80211 interface, and basic support for notifying about triggered monitoring
events.

Via this interface a user-space connection manager may configure and receive
pre-warning events of deteriorating WLAN connection quality, and start
preparing for roaming in advance, before the connection is already lost.

An example usage of such a trigger is starting scanning for nearby AP's in
an attempt to find one with better connection quality, and associate to it
before the connection characteristics of the existing connection become too bad
or the association is even lost, leading in a prolonged delay in connectivity.

The interface currently supports only RSSI, but it could be later extended
to include other parameters, such as signal-to-noise ratio, if need for that
arises.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-24 16:02:37 -04:00
Amitkumar Karwar 921ca03c8f libertas: add auto auth mode feature
Auto auth mode is enabled by default. If user doesn't specify the
auth mode, while association driver will first try with open mode
and then with shared key mode. If user specifies an auth mode,
auto auth is disabled and driver will not try association with
another auth mode.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-24 16:02:37 -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
Tom Herbert e51d739ab7 net: Fix locking in flush_backlog
Need to take spinlocks when dequeuing from input_pkt_queue in flush_backlog.
Also, flush_backlog can now be called directly from netdev_run_todo.

Signed-off-by: Tom Herbert <therbert@google.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-23 23:17:18 -07:00
Daniel Ngu c5a079f46a drivers/net/wireless/b43/main.c:4351: Fixed coding style
WARNING: braces {} are not necessary for any arm of this statement

Signed-off-by: Daniel Ngu <daniel.dy.ngu@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:51:59 -04:00
Juuso Oikarinen 1e4dcd0124 mac80211: Add support for connection monitor in hardware
This patch is based on a RFC patch by Kalle Valo.

The wl1271 has a feature which handles the connection monitor logic
in hardware, basically sending periodically nullfunc frames and reporting
to the host if AP is lost, after attempting to recover by sending
probe-requests to the AP.

Add support to mac80211 by adding a new flag IEEE80211_HW_CONNECTION_MONITOR
which prevents conn_mon_timer from triggering during idle periods, and
prevents sending probe-requests to the AP if beacon-loss is indicated by the
hardware.

Cc: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:51:42 -04:00
Joe Perches 43ead78ac4 drivers/net/wireless/ray_cs.c: Use iw_handler function prototypes
Change local functions that are cast to iw_handler to
the more standard use with "union iwreq_data *wrqu"
so the iw_handler array no longer needs the casts.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:28 -04:00
Joe Perches adc009e2e7 orinoco/wext.c: Remove local #define STD_IW_HANDLER
Use IW_HANDLER from wireless.h instead

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:28 -04:00
Joe Perches 56b632e8cc drivers/net: Remove local #define IW_IOCTL, use IW_HANDLER
Use #define IW_HANDLER from wireless.h instead

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:28 -04:00
Joe Perches 270020e85e drivers/net/wireless: Use IW_HANDLER macro
Convert direct uses of [ (foo - SIOCIWFIRST) , fn)

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:27 -04:00
Joe Perches 76326f1d4c net/wireless/wext-core.c: Use IW_EVENT_IDX macro
There's a wireless.h macro for this, might as well use it.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:27 -04:00
Joe Perches 44608f8012 net/wireless/wext_core.c: Use IW_IOCTL_IDX macro
There's a wireless.h macro for this, might as well use it.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:27 -04:00
Joe Perches 2ae2332ed1 wireless.h: Use SIOCIWFIRST not SIOCSIWCOMMIT for range check
These two #defines use the same value, but
SIOCIWFIRST makes more sense in this use.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:26 -04:00
Joe Perches f6e0bb56d4 include/linux/wireless.h: Add IW_HANDLER macro to initialize array entry
Copied the idea from orinoco

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:26 -04:00
Teemu Paasikivi 3b56dd6a09 wl1271: Changed platform_device to be dynamically allocated
Changed platform_device to be allocated dynamically from the
wl1271_alloc_hw function. Also cleaned up error handling in the
wl1271_alloc_hw function and module probe functions.

Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:25 -04:00
Juuso Oikarinen 2ea9fb3d79 wl1271: Remove circular interlocking related to the inetaddr notifier chain
Removing the wl1271 from the inet addr notifier chain sometimes causes the
registered handler to be called - causing locking problems if the removing
function is called from within the mutex.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:25 -04:00
Juuso Oikarinen a0cb7be4f4 wl1271: Don't generate null func template for ad-hoc
The null func template is not needed for ad-hoc, and it's generation is not
supported for ad-hoc (mac80211 will WARN about it.)

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:24 -04:00
Juuso Oikarinen 14b228a0d4 wl1271: Update filters properly
This patch adds support for the filters configured by the mac80211 stack.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:24 -04:00
Teemu Paasikivi 801a673ed1 wl1271: Removed duplicate code from module remove function.
Removed duplicate code from wl1271_sdio module remove function. For
freeing stuff in the remove function wl1271_free_hw function is now
used.

Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:24 -04:00
Teemu Paasikivi a3b8ea7554 wl1271: Added DEBUG_SDIO flag
Added separate flag for SDIO debugging. Previously it has used
DEBUG_SPI flag. This patch also includes couple indentation fixes.

Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:23 -04:00
Juuso Oikarinen c76a0d6c93 wl1271: Remove deprecated interface config function
It's no longer needed.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:23 -04:00
Juuso Oikarinen 1b72aecd95 wl1271: Fix MAC address handling
This patch fixes MAC address handling. To achieve this, firmware booting had
to be delayed from the previous op_start to op_add_interface, which is the point
when the driver gets to know the configured MAC address. As the wl1271 only
supports one virtual interface, this even seems quite logical.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:23 -04:00
Kalle Valo 4695dc917d wl1271: enable U-APSD
wl1271 supports U-APSD similarly as wl1251, so let's enable it.

Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:23 -04:00
Kalle Valo 522ac25048 wl1271: fix ps scheme in wl1271_op_conf_tx()
Commit "wl1271: implement WMM" accidentally used CONF_PS_SCHEME_LEGACY_PSPOLL,
but instead CONF_PS_SCHEME_LEGACY should be used as earlier.

Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:22 -04:00
Kalle Valo 023e082609 wl1271: create qos nullfunc template
Needed for U-APSD.

Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:22 -04:00
Kalle Valo 818e3063a9 wl1271: get probe request template from mac80211
If we get probe request from mac80211, we can remove two functions.

Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:22 -04:00
Kalle Valo 899e6e65c3 wl1271: get pspoll and nullfunc templates from mac80211
mac80211 now can create pspoll and nullfunc templates, better to use those.

Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:21 -04:00
Kalle Valo 12bd89499f wl1271: enable WMM
Everything is ready now and we can enable WMM in wl1271.

Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:21 -04:00
Juuso Oikarinen 7fc3a8647d wl1271: Add sysfs file to control BT co-ex state
Add a sysfs file to control the state of the BT co-ex (enable or disable it.)
By default, the BT co-ex is enabled.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:21 -04:00
Juuso Oikarinen a1dd8187d8 wl1271: Move platform device registration from _spi to _main
In order to get the platform device for both SPI and SDIO, move the platform
device registration to wl1271_main.c from wl1271_spi.c.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:20 -04:00
Juuso Oikarinen 1b00f546fc wl1271: Add proper WLAN-BT co-ex configuration, and enable co-ex.
Add configuration values for the varous WLAN-BT co-ex configuration parameters,
and finally enable WLAN-BT co-ex. Based on preliminary measurements, it
appears the co-ex feature is not increasing WLAN power consumption, if BT
is not activated.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:19 -04:00
Juuso Oikarinen 885c990744 wl1271: Fix SG configuration message structures
The bluetooth coexistence (SG) configuration messages have changed and
were completely wrong. For instance, intending to enable the SG, it was
instead disabled.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:19 -04:00
Teemu Paasikivi 93f56be146 wl1271: Changed SDIO MMC host claiming
Changed driver to keep MMC host claimed while wlan interface is up.
This keeps MMC stack from powering the SDIO device down.

Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:19 -04:00
Teemu Paasikivi becd551cac wl1271: Cleaned up wlan power on/off functions
Added method for wlan power control to io_ops struct and moved
wl1271_power_on and wl1271_power_off functions to wl1271_io.h.

Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:18 -04:00
Juuso Oikarinen b43316dbf9 wl1271: Fix configuration of the TX opportunity value
The per-queue TX opportunity value is configured by the mac80211 in units
of 32us. The firmware however wants it in us, so add the conversion.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:18 -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
Sujith 736b3a27b3 ath9k_hw: fix hardware deinit
Without this you will get a panic if the device initialization
fails. Also, free ath_hw instance properly. ath9k_hw_deinit()
shouldn't do it.

Cc: stable@kernel.org
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:16 -04:00
Sujith 05020d236e ath9k_hw: add HTC init hardware call for special resets for AR9271
AR9271 needs a full reset only upon the first reset, add
a call for the driver to enable these special resets. We
can optimize this out later without an export.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:16 -04:00
Sujith 25e2ab17fd ath9k_hw: always set the core clock for AR9271
When initializing the PLL on AR9271 we always need
to set the core clock to 117MHz. While at it remove
the baud rate settings for the serial device on the
AR9271, the default settings work well unless you
want to customize it.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:16 -04:00
Sujith 02afa2a01b ath9k_hw: use the skip count for PA calibration on AR9271
Periodic power amplifier offset calibration is skipped on ath9k
algorithmically, this is required on AR9271.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:15 -04:00
Sujith 2cbfaea485 ath9k_hw: restrict valid nf readings for AR9271 to -114
Noisefloor values read on AR9271 are unreliable if they
are less than -114, set those statically to -116.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:14 -04:00
Sujith 6398dc039d ath9k_hw: fix noisefloor history buffer usage on AR9271
Noisefloor calibration involves querying hardware for samples
and storing this information on a history buffer in hardware for
actual noisefloor calibration processing in hardware. The history
buffer supports collecting information for all Atheros hardware,
one history buffer slot for each chain on each channel used for
MIMO operation. For current hardware this means one history
buffer slot for each chain on both the control (or primary) channel
and the extension (or secondary) channel. We know which noisefloor
registers to poke for collecting noisefloor data through the
chainmask.

For AR9285 and AR9271 devices, both 1x1, the chaimmask is defined as
0x9 = 0b0001001. The first four bits represent each chain out of
a maximum of 4 chains [0-3] on the primary channel. The last four
bits represent each chain on the extension channel. A chainmask
of 0x9 therefore indicates chain 1 is active on both the primary
and the extension channel.

AR9271 only requires collecting and storing noisefloor history buffer
data for the first chain on both the control and extension channel
(nfarray[0] and nfarray[3]) so fix the code and avoid which reads
and writes to the history buffer for the other chains.

Since the noisefloor varies depending on the number of chains your
device supports also initialize the noisefloor history buffer with
reasonable values seen on 1x1 devices such as AR9285.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-23 16:50:14 -04:00