Commit Graph

204906 Commits

Author SHA1 Message Date
Helmut Schaa
65b7fc9747 rt2x00: fix oops in rt2x00lib_txdone with rt61pci
Fix a typo introduced in "rt2x00: Add helper function for reporting tx
status" that results in an oops in rt2x00lib_txdone.

Reported-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-14 16:03:44 -04:00
Helmut Schaa
6646505de0 rt2x00: Enable missing interrupts in rt61pci
We're handling both, the CSR_BEACON_DONE and the CSR_TWAKEUP interrupts
in rt61pci. However, these interrupts are masked out by default. Fix
this.

Found via pure code inspection.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-14 16:03:44 -04:00
Helmut Schaa
93149cf87b rt2x00: Mask out unused interrupts in rt2800pci
We don't use all available interrupts in rt2800pci. Mask out all unused
interrupts to avoid waking up without having anything to do.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-14 16:03:44 -04:00
Helmut Schaa
0204464329 rt2x00: Check for specific changed flags when updating the erp config
Previously rt2x00 was always updating all erp related config variables
even though mac80211 might only have changed one. Hence, pass the
changed flags to the config_erp driver callback so that the driver
can limit the changes to the correct values.

This fixes an issue in AP mode where the beacon interval is not
initialized (and thus zero) but still sent to the hardware causing an
interrupt storm on rt2800pci hanging the system.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-14 16:03:43 -04:00
Helmut Schaa
47ee3eb135 rt2x00: Initialize AMPDU_BA_WINSIZE register
Since we're not using the AMPDU_BA_WINSIZE register to force the BlockAck
window size (we specify it in every TXWI) we should initialize it to 0.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-14 16:03:43 -04:00
Lars Ericsson
85f4d6488c rt2x00: Antenna diversity does not work in 2.6.35
The test if antenna diversity is at all enabled uses a local variable
'flags' to prepare the test condition, but uses 'ant->flags' when the test
is evaluated. The effect is that the diversity evaluation will never start.
I can see two solutions, use the 'flag' in the test condition or revert the
local flag change. My attached patch took alternative two.

Then the evaluation start but it will still not switch antenna. The problem
is a code section in rt2x00lib_config_antenna (). The effect of that code
section is that any change the diversity function perform will be
effectively shorten and no antenna selection command issued. The attached
patch will filter out any ANTENNA_SW_DIVERSITY setting but forward all
other

Signed-off-by: Lars Ericsson <lars_ericsson@telia.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-14 16:03:43 -04:00
Rajkumar Manoharan
58d7e0f37c ath9k_hw: Support fastcc for AR7010
To reduce scan time, enable fastcc for AR7010

(fastcc == fast channel change -- JWL)

Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-14 16:03:43 -04:00
Ohad Ben-Cohen
49063a0d0b wl1271: sdio: claim host only when doing IO
Do not maintain a persistent sdio_claim_host state. Instead,
claim host before doing IO and release host soon after.

This fixes several mmc deadlock scenarios, e.g. during
suspend/resume.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-14 16:03:42 -04:00
Christian Lamparter
1d7e1e6b1b carl9170: Makefile, Kconfig files and MAINTAINERS
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-14 16:03:42 -04:00
Christian Lamparter
00c4da27a4 carl9170: firmware parser and debugfs code
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-14 16:03:42 -04:00
Christian Lamparter
a84fab3cbf carl9170: 802.11 rx/tx processing and usb backend
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-14 16:03:42 -04:00
Christian Lamparter
319da621d5 carl9170: PHY/RF and MAC routines
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-14 16:03:42 -04:00
Christian Lamparter
aae9af605a carl9170: Register maps, tx/rx descriptor formats and eeprom layout
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-14 16:03:41 -04:00
Christian Lamparter
fe8ee9ad80 carl9170: mac80211 glue and command interface
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-14 16:03:41 -04:00
Wey-Yi Guy
743e015dcb iwlwifi: remove code repetition
Move the duplicated code into single static function.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-09-11 08:52:23 -07:00
Wey-Yi Guy
8f1d968721 iwlwifi: make sure runtime calibration is enabled after association
Clear the "start calib" flag only for new association,
The flag will be set in post_associate function to trigger
the runtime calibration. Set this flag to "0" will stop the
runtime sensitivity calibration

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-09-11 08:52:11 -07:00
Johannes Berg
ea196fdbb9 iwlwifi: fix and describe iwl_adjust_beacon_interval
The iwl_adjust_beacon_interval function is a bit
of black magic, so add comments to it describing
what it does. Also, in the case when there's no
beacon interval set, program the default into
the device (instead of adjusting, which results
in the max) since using the max in that case
interacts badly with dual-mode/PAN parameters.

Also update the PAN parameters accordingly and
use the same constant as here.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-09-11 08:52:01 -07:00
Johannes Berg
f1f270b25c iwlwifi: improve timing handling with dual-mode
In dual-mode, a number of scenarios need to be
considered, and the firmware can be very picky
about them. Adjust the timing (most importantly
the beacon interval) according to the different
modes.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-09-11 08:51:48 -07:00
Johannes Berg
763cc3bf5c iwlwifi: avoid sending too many commands
When the PAN context is unused, there's no
need to continually update it in the device.
So track which contexts are active (with the
special case that the WLAN context is always
active ...) and only send their commands to
the device when needed.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-09-11 08:51:39 -07:00
Wey-Yi Guy
c6abdc0dc3 iwlwifi: allow configure protection mode
Even driver use rts/cts protection mode for aggregation packets by default.
Allow the protection mode to be configure through debugfs

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-09-11 08:51:31 -07:00
Johannes Berg
2a3aeb44f5 iwlwifi: implement beacon interval change
When the beacon interval needs to be changed,
all we need to do is send updated timing to
the device.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-09-11 08:51:21 -07:00
Johannes Berg
27eafdda77 iwlwifi: fix PAN parameters while scanning
When only the PAN side was active, we gave no
time to the WLAN context, which is OK unless
we are scanning, which always happens on the
WLAN context. Fix this.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-09-11 08:51:10 -07:00
Wey-Yi Guy
6e6ebf4bef iwlwifi: remember the last uCode sysassert error code
When sysassert happen, uCode will report the error code,
driver dump the information to dmesg. Here also remember
the last error code for future reference.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-09-11 08:50:59 -07:00
Tomas Winkler
cf6da94acb iwlwifi: fix default LQ table in 5.2 band
The default LQ is filled decreasingly using
iwl_get_prev_ieee_rate from a starting rate.
Since the starting rate is already the lowest one for
a specific band it should be actually filled evenly with
the starting rate: 1M and 6M for 5.2GHZ and 2.4GH respectively.
The bug is that for for A or G-only it decreases to
CCK rates which are not supported.
iwl_get_prev_ieee_rate function is just not band aware.
This affects broadcast station which lq table
is not updated by rs algorithm

G-only scenario is not treated by this patch

iwl_get_prev_ieee_rate is removed completely as it
is not used in other contexts

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-09-11 08:50:44 -07:00
Julia Lawall
950094cb06 drivers/net/wireless/iwlwifi/iwl-agn.c: Fix return value from an unsigned function
The function has an unsigned return type, but returns a negative constant
to indicate an error condition.  Another error condition in the same
function is indicated by returning 0, and indeed the only call to the
function checks for 0 to detect errors, so the return of a negative value
it converted to a return of 0.

A sematic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@exists@
identifier f;
constant C;
@@

 unsigned f(...)
 { <+...
*  return -C;
 ...+> }
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-07 13:54:34 -04:00
Michael Büsch
f4bbf922f3 p54spi: Add error message for eeprom failure
This adds an error message for the eeprom request failure
case. This way it's easier for the user to figure out
what went wrong.

Signed-off-by: Michael Büsch <mb@bu3sch.de>
Acked-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-07 13:54:34 -04:00
Rajkumar Manoharan
c2ba334246 ath9k_hw: Restore ANI registers to default during partial reset for AR9271
For AR9271 chips, if partial reset is done while scanning, the cycpwrThr1
will be set to maximum. This causes the degrade in DL throughput.
So restore the ANI registers to default during the partial reset.

Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-07 13:54:34 -04:00
Rajkumar Manoharan
7cf1f2dd7d ath9k_htc: Enable fastcc for HTC devices.
By enabling fastcc, the scan time reduced to half.

Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-07 13:54:34 -04:00
Vasanthakumar Thiagarajan
102885a5d1 ath9k: Implement an algorithm for Antenna diversity and combining
This algorithm chooses the best main and alt lna out of
LNA1, LNA2, LNA1+LNA2 and LNA1-LNA2 to improve rx for single
chain chips(AR9285). This would greatly improve rx when there
is only one antenna is connected with AR9285.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-07 13:54:33 -04:00
Vasanthakumar Thiagarajan
21cc630f47 ath9k_hw: Add functions to get/set antenna diversity configuration
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-07 13:54:33 -04:00
Vasanthakumar Thiagarajan
754dc53641 ath9k_hw: Add capability flag for Antenna diversity and combining feature
This is enabled only for ar9285.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-07 13:54:33 -04:00
Stephen Hemminger
7a374d8eeb airo: make strings const
Make read/only data structures const. Compile tested only.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-07 13:54:33 -04:00
Stephen Hemminger
b6f45c2c03 ray_cs: make data const
Make the startup and other data parameters that are read/only
const. Compile tested only.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-07 13:54:32 -04:00
Wey-Yi Guy
f7322f8f05 iwlagn: open/close envlope to force move BT state machine
In uCode, BT state machine need to receive open envlope
command before perform calibration; followed by close envlope
command to move to next stage.

Since Linux has two separated uCode, one for init and the second
one for runtime; we use open envlope commands for init uCode to
indicate we are ready to perform calibration operation.
But for runtime uCode, we are not doing any init calibration,
so we issue open/close envlope commands to force uCode move to
"BT COEX ON" state.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2010-09-03 12:31:35 -07:00
John W. Linville
85f72bc839 mac80211: only cancel software-based scans on suspend
Otherwise the hardware scan handler could access an invalid scan request
structure.  The driver should cancel any pending hardware scans during
the suspend process anyway, so also add a warning if the hardware scan
is still pending when the device resumes.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-01 16:12:28 -04:00
John W. Linville
18145c6934 mac80211: cancel scan in ieee80211_restart_hw if software scan pending
This function exists to clean-up after a hardware error or something
similar.  The restart is accomplished using the same infrastructure used
to resume after a suspend.  The suspend path cancels running scans, so
it seems appropriate to do that here as well for software-based scans.
If a hardware-based scan is pending, issue a warning message since this
indicates that the drivers has failed to clean-up after itself.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-31 15:20:45 -04:00
Ivo van Doorn
cd35a39121 rt2x00: Cleanup rt2x00usb_watchdog_reset_tx
rt2x00usb_watchdog_reset_tx performs the same task
as rt2x00usb_kill_tx_queue, with the only difference
is that it waits for all entries to be returned to
the driver and for all frames the status has been
reported to mac80211.

We can easily split this task by calling rt2x00usb_kill_tx_queue,
sleep for a short period and invoke the TX status reporting
function. By adding the sleep() to the kill_entry we make sure
that even during shutdown we guarentee the entry has been killed when
the function returns. To make this work correctly the interrupt
handlers have to be updated to prevent checking for the RADIO_ENABLED
flag too early which prevents the ownership of the entry to be reset.
Additionally a check for the DEVICE_PRESENT flag is not required but
is nice to prevent race conditions when the device was unplugged.

Additionally rather then calling rt2x00usb_work_txdone() for
status reporting we let the driver perform the TX status reporting
first. If this is not sufficient then rt2x00usb_work_txdone() will
still be used to cleanup the mess.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-31 14:22:25 -04:00
Ivo van Doorn
652a9dd2a0 rt2x00: Split watchdog check into a DMA and STATUS timeout
The watchdog for rt2800usb triggers frequently causing all URB's
to be canceled often enough to interrupt the normal TX flow.
More research indicated that not the URB upload to the USB host
were hanging, but instead the TX status reports.

To correctly detect what is going on, we introduce Q_INDEX_DMA_DONE
which is an index counter between Q_INDEX_DONE and Q_INDEX and indicates
if the frame has been transfered to the device.

This also requires the rt2x00queue timeout functions to be updated
to differentiate between a DMA timeout (time between Q_INDEX and
Q_INDEX_DMA_DONE timeout) and a STATUS timeout (time between
Q_INDEX_DMA_DONE and Q_INDEX_DONE timeout)

All Q_INDEX_DMA_DONE code was taken from the RFC from
Helmut Schaa <helmut.schaa@googlemail.com> for the implementation
for watchdog for rt2800pci.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-31 14:22:25 -04:00
Ivo van Doorn
0e3afe5b20 rt2x00: Correctly kill beacon queue
USB devices upload their beacon and then automatically send
it out every beacon interval. However when killing a TX queue
we only kill the URB and not the actual transmission of the beacon.

This will reset the Beacon register to prevent any beacons from
being transmitted.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-31 14:22:24 -04:00
Ivo van Doorn
e0540879db rt2x00: Set PWR_PIN_CFG during initialization
Add PWR_PIN_CFG initialization for rt2800usb at the same point
as rt2800pci.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-31 14:22:24 -04:00
Ivo van Doorn
c600c826a6 rt2x00: Don't set unicast/BSSID masks when clearning MAC or BSSID
When configuring the MAC_ADDR or MAC_BSSID with an empty address,
the UNICAST_TO_ME_MASK and BSS_ID_MASK must also be reset to prevent
invalid interpretation of the addresses.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-31 14:22:24 -04:00
Ivo van Doorn
b9eca24209 rt2x00: Wakeup hardware before loading firmware
According to the legacy drivers the AUTOWAKEUP_CFG
register must be reset to 0 before loading the firmware.

Instead of during rt2800{pci,usb}_write_firmware it
must actually be done in rt2800_load_firmware() before
resetting the WPDMA_GLO_CFG and PWR_PIN_CFG registers.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-31 14:22:24 -04:00
Ivo van Doorn
3613884d96 rt2x00: Validate TX status results with current data entry
Instead of printing a warning when the PID, ACK, or WCID of
an entry don't match the TX status report, we should skip the
entry to search for the entry which actually does match
the TX status data.

This reduces the number of watchdog errors on the TX queues
for rt2800usb, and seems to improve the reliability of the
TX flow a bit.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-31 14:22:24 -04:00
Ivo van Doorn
5ffddc498c rt2x00: Add rt2800_wait_csr_ready
Similar to rt2800_wait_wpdma_ready() we can add a
function to waiting until the CSR is ready. This
centralizes some additional code into rt2800lib.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-31 14:22:23 -04:00
Helmut Schaa
2035c0cf8f rt2x00: Update rt2800 comments regarding AMPDU and PACKET_ID in TXWI
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-31 14:22:23 -04:00
Helmut Schaa
a908a74382 rt2x00: Rename txentry_desc.queue -> txentry_desc.qid
Variables containing queue ids are called qid everywhere else, hence
rename the queue field in txentry_desc to qid as well.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-31 14:22:23 -04:00
Felix Fietkau
56363ddeee ath9k: fix spurious MIC failure reports
According to the hardware documentation, the MIC failure bit is only
valid if the frame was decrypted using a valid TKIP key and is not a
fragment.
In some setups I've seen hardware-reported MIC failures on an AP that
was configured for CCMP only, so it's clear that additional checks are
necessary.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-31 14:22:23 -04:00
Julia Lawall
3653910714 net/wireless: Remove double test
The same expression is tested twice and the result is the same each time.

The sematic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@expression@
expression E;
@@

(
* E
  || ... || E
|
* E
  && ... && E
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-31 14:20:40 -04:00
Denis 'GNUtoo' Carikli
9df86e2e70 wl1251: Fix queue stopping/waking for TX path
This patch was adapted from 06f7bc7db7
(from linus's linux-2.6 tree of kernel.org)

here's the original message:
    The queue stopping/waking functionality was broken in a way that could
    cause huge latencies in TX transfers and even cause the TX to stall in the
    right circumstances. Correct these problems.

Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@no-log.org>
Acked-by: Kalle Valo <kvalo@adurom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-31 14:20:40 -04:00
Jouni Malinen
391a200a89 mac80211: Do not generate CQM events based on first Beacon frames
The signal strength value in a single RX frame is not that reliable,
so it is better to delay start of CQM events until there is a real
average signal strength from more than a single Beacon frame
available.

Signed-off-by: Jouni Malinen <j@w1.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-31 14:20:40 -04:00