Commit Graph

275 Commits

Author SHA1 Message Date
Subramania Sharma Thandaveswaran
d472b5e43d ath6kl: Fix bug in bg scan configuration in schedule scan
Background scan interval should not be modified while starting
schedule scanning as it changes the bg scan interval when connected to AP.
Use the currently configured interval instead.

kvalo: improve commit log

Signed-off-by: Subramania Sharma <sharmat@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-04-18 13:03:55 +03:00
Raja Mani
eb38987e89 ath6kl: Retain bg scan period value modified by the user
Added a new member bg_scan_period in struct ath6kl_vif
to retain background scan period value configured via debugfs
entry 'bgscan_interval'. This backup is needed in schedule scan
path while configuring scan parameters.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-04-18 12:56:38 +03:00
Ming Jiang
48f27587aa ath6kl: allow deepsleep_suspend function when wlan interface down
Aafter wlan interface is down WLAN_ENABLED flags will be cleared and
deepsleep_suspend function will be blocked in this senario. This patch
allows deepsleep_suspend function when wlan interface down by removed
the WLAN_ENABLED flag checking.

kvalo: fix commit log

Signed-off-by: Ming Jiang <mjiang@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-04-16 09:13:39 +03:00
Kalle Valo
cdeb860252 ath6kl: merge split format strings into one
Found by checkpatch:

WARNING: quoted string split across lines

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-04-16 09:08:51 +03:00
Vasanthakumar Thiagarajan
9e8b16dbd0 ath6kl: Configure 0 as rsn cap when it is not there in rsn ie
Currently rsn capability is not set when it is not available in
rsn IE. Set it to 0 in firmware when it is not there in the ie to
make sure host and target are consistent.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-04-12 10:37:13 +03:00
Vasanthakumar Thiagarajan
798985c688 ath6kl: Fix possible unaligned memory access in ath6kl_get_rsn_capab()
alignment is not taken care in accessing pairwise cipher and AKM suite
count which are parsed from rsn ie. Fix this alignment issue.

Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-04-12 10:35:03 +03:00
Thomas Pedersen
c4f7863eae ath6kl: handle concurrent AP-STA channel switches
If an ath6kl AP vif is beaconing on one channel, and a STA vif
associates on a different channel, a WMI_DISCONNECT event will be sent
to the AP vif. Make the AP vif follow the STA interface, and notify
userspace.

kvalo: fix a sparse warning with vif->next_chan

Signed-off-by: Thomas Pedersen <c_tpeder@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-04-12 09:55:52 +03:00
Kalle Valo
d968370ee7 Merge remote branch 'wireless-next/master' into ath6kl-next 2012-04-12 09:45:11 +03:00
Joe Perches
516304b0f4 ath: Add and use pr_fmt, convert printks to pr_<level>
Use a more current logging style.
Make sure all output is prefixed appropriately.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-10 14:52:13 -04:00
Vasanthakumar Thiagarajan
d97c121bb2 ath6kl: Fix 4-way handshake failure in AP and P2P GO mode
RSN capability field of RSN IE which is generated (which is what really
advertised in beacon/probe response) differs from the one generated in
wpa_supplicant. This inconsistency in rsn IE results in 4-way handshake
failure. To fix this, configure rsn capability used in wpa_supplicant
in firmware using a new wmi command, WMI_SET_IE_CMDID. There is a bit
(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE) in fw_capabilities to advertise
this support to driver.

Signed-off-by: Subramania Sharma <sharmat@qca.qualcomm.com>
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-04-09 18:33:07 +03:00
Vasanthakumar Thiagarajan
df90b36940 ath6kl: Configure htcap in fw based on the channel type in AP mode
This patch disables HT in start_ap if the type of the channel on
which the AP mode is going to be operating is non-HT. HT is enabled
with default ht cap setting if the operating channel is going to be
11n.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-04-09 18:25:56 +03:00
Vasanthakumar Thiagarajan
bed56e313a ath6kl: Don't advertise HT40 support in 2.4 Ghz
HT40 is not supported in 2.4Ghz.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-04-09 18:25:56 +03:00
Vasanthakumar Thiagarajan
1e8d13b0ac ath6kl: Fix target assert in p2p bringup with multi vif
Using interface 0 for p2p causes target assert. This is because
interface 0 is always initialized to non-p2p operations. Fix this
issue by initializing all the interfaces for p2p when fw is capable
of dynamic interface switching. When fw is not capable of dynamic
switching, make sure p2p is not brought up on interface which is
not initialized for this purpose.

Reported-by: Naveen Singh navesing@qca.qualcomm.com
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-04-09 17:49:43 +03:00
Vivek Natarajan
3d79499c1c ath6kl: Fix scan related issue on suspend-resume
When a scan request is pending while going to suspend, any new
scan request after resume will fail. So, cancel all scan requests
in all the vifs before moving to suspend state.

Signed-off-by: PingYang Zhang <pingzhan@qca.qualcomm.com>
Signed-off-by: Vivek Natarajan <nataraja@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-04-03 21:26:01 +03:00
Bala Shanmugam
f599359cb9 ath6kl: Set background scan period.
After connect command, send scan params WMI command to
set background scan period. If period value is zero
send 0xffff as bg scan period to disable bg scan.
Set default bg scan period to be 60 seconds if
not specified.

This patch depends on below patch
cfg80211: Add background scan period attribute.

kvalo: fix open parenthesis alignment

Signed-off-by: Bala Shanmugam <bkamatch@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-28 16:52:41 +03:00
Raja Mani
5b35dff0bb ath6kl: Store scan request info in-advance before sending SCAN request
In current code, Scan request info is recorded in vif->scan_req
after sending SCAN request to the firmware in ath6kl_cfg80211_scan().

In some corner cases, firmware sends SCAN_COMPLETE event immediately
when it receives SCAN request, which internally executes scan
complete event handler ath6kl_cfg80211_scan_complete_event() first.
So, Scan completion handler will a get a chance to executed even
before storing scan request info in ath6kl_cfg80211_scan().

Scan completion handler never report SCAN_COMPLETE event to
cfg80211 if scan request info(vif->scan_req) is NULL. This leads
to scan failure issue ("Device or resource busy error") during
next SCAN request from the user space. This patch ensures that scan
request info is stored before sending SCAN request.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-28 16:33:38 +03:00
Vasanthakumar Thiagarajan
03bdeb0d54 ath6kl: Configure inactivity timeout in fw
Configure the inactivity timeout passed in start_ap() to
firmware. This capability is advertised only when fw supports
it, there is a new bit (ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT)
in firmware capability ie for driver to learn fw's capability.
After the fw finds out the station is inactive, it will probe
the station with null func frames. By default, the timeout is
10 secs.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-26 16:28:39 +03:00
Raja Mani
40abc2defb ath6kl: Optimize target power in deep sleep suspend
Adding below steps helps to get good power numbers
in deep sleep suspend path,

    * Disable WOW mode.
    * Flush data packets and wait for all control packets.
      to be cleared in TX path before deep sleep suspend.
    * Set host sleep mode to SLEEP.

Below steps are added to perform the recovery action
while the system resume from deep sleep,

     * Set host sleep mode to AWAKE.
     * Reset scan parameters to default value.

In addition, Debug prints are added to track deep sleep
suspend/resume state.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-26 16:07:40 +03:00
Raja Mani
055bde493f ath6kl: Isolate host sleep mode config part from ath6kl_wow_suspend
The piece of code used in ath6kk_wow_suspend function
to configure the host sleep mode is needed in deep sleep
case also.

Moving that portion to a separate function called
ath6kl_update_host_mode() would be helpful to avoid
the duplication of the same code in deep sleep path.

There is no functional change.

kvalo: move inline functions to cfg80211.c and fix a long line

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-26 16:07:19 +03:00
Kalle Valo
b4d13d3b70 ath6kl: abort normal scan when scheduled scan is started
If the device disconnects from an AP when it is in suspending state. You will
get the following message from wpa_supplicant after waking the device up and
sending scan request:

"Scan trigger failed: ret=-16 (Device or resource busy)"

Fix the issue by sending a scan complete event before starting scheduled
scan.

kvalo: cosmetic changes to commit log

Signed-off-by: Isaac.li <shonmou@gmail.com>
Tested-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-21 10:06:43 +02:00
Aarthi Thiruvengadam
c86e4f44f1 ath6kl: handle probe response from P2P device in P2P GO mode
When the device is in P2P GO mode and in listen state, the correct behavior is
to see two different probe response frames - one from P2P device and the other
from GO. wpa_supplicant uses the same mechanism to send the frame in both cases
(ath6kl_mgmt_tx). For GO probe response, ath6kl needs to call
ath6kl_send_go_probe_resp (this will add only WSC/P2P IEs and the rest of the
IEs are filled in by the firmware). That was done based on the nw_type ==
AP_NETWORK which would work if P2P Device role were in a separate netdev. When
P2P Device and GO use the same netdev, ath6kl needs to use the special GO probe
response case only if SSID is longer than P2P wildcard SSID.

Signed-off-by: Aarthi Thiruvengadam <athiruve@qca.qualcomm.com>
Reviewed-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-20 10:33:11 +02:00
Kalle Valo
b5283871ce ath6kl: use max_t() in ath6kl_cfg80211_connect()
ath6kl/cfg80211.c:589: WARNING: max() should probably be
max_t(u16, vif->listen_intvl_t, ATH6KL_MAX_WOW_LISTEN_INTL)

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-13 14:18:34 +02:00
Aarthi Thiruvengadam
17a7b16df4 ath6kl: Fix merge error in ath6kl_set_ies()
Portion of the commit id 080eec4fb4 ("ath6kl: Clear the IE in firmware
if not set") was overwritten by mistake due to a merge
conflict. This patch fixes the code back to how it should be.

kvalo: more details to the commit log

Signed-off-by: Aarthi Thiruvengadam <athiruve@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-12 09:46:56 +02:00
Kalle Valo
8c9bb054f8 ath6kl: fix open paranthesis alignment in ath6kl_cfg80211_connect()
ath6kl/cfg80211.c:462: CHECK: Alignment should match open parenthesis

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-07 20:04:00 +02:00
Kalle Valo
d0d670abcf ath6kl: remove multiple assignments
Found by checkpatch:

drivers/net/wireless/ath/ath6kl/cfg80211.c:1295: CHECK: multiple assignments should be avoided
drivers/net/wireless/ath/ath6kl/cfg80211.c:3000: CHECK: multiple assignments should be avoided

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-07 20:03:58 +02:00
Kalle Valo
ddc3d77c80 ath6kl: logical continuations should be on the previous line
All found by checkpatch:

ath6kl/wmi.c:1036: CHECK: Logical continuations should be on the previous line

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-07 20:03:58 +02:00
Kalle Valo
96f1fadc94 ath6kl: alignment should match open parenthesis
Fix the issues which checkpatch found and were easy to fix. Especially
callers of ath6kl_bmi_write() are tricky and that needs to be fixed
separately.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-07 20:03:57 +02:00
Raja Mani
ce0dc0cfea ath6kl: Set optimal listen intvl,bmiss,scan params while going to wow suspend
* In order to save the target power in WOW suspend state,
  configure the best optimal values for the below parameters,
     - listen interval.
     - beacon miss interval.
     - scan parameters.

  Default values for above attributes are reverted in
  wow resume operation.

* The default listen interval is set before the host issue
  connect request.

* New function is added to configure beacon miss count.

kvalo: minor changes to fix open parenthesis alignment

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-07 09:49:47 +02:00
Raja Mani
8f46fccd6c ath6kl: Maintain the listen interval per VIF specific
Firmware has the option to support the listen interval
per vif specific. Fix this.

Listen interval can be set by the TUs or by the number
of beacons. Current code enables the user to configure
the listen interval in the unit of 'number of beacons'
using debugfs entry "listen_interval". Going forward,
we need to alter the listen interval in the unit of TUs
to get good power numbers while going to WOW suspend/resume.

Allowing the user to change the listen interval in
the unit of "number of beacons"  in debugfs and changing
listen interval in wow suspend/resume in the unit of
time (TUs) would lead us to confuse.

This patch make sures the listen interval is changed only
in the unit of time (TUs).

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-07 09:38:25 +02:00
Raja Mani
390a8c8fae ath6kl: Check wow state before sending control and data pkt
Below two scenarios are taken care in this patch which helped
to fix the firmware crash during wow suspend/resume.

* TX operation (ctrl tx and data tx) has to be controlled based
  on suspend state. i.e, with respect to WOW mode, control packets
  are allowed to send from the host until the suspend state goes
  ATH6KL_STATE_WOW and the data packets are allowed until WOW
  suspend operation starts.

* Similarly, wow resume is NOT allowed if WOW suspend is in progress.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-07 09:34:14 +02:00
Raja Mani
1e9a905d9a ath6kl: Add provision to define suspend policy in disconnected state.
It gives flexibility to the user to define suspend policy
when the suspend mode is set to WOW and the device is in
disconnected state at the time of suspend.

New module parameter wow_mode is added to get the choice
from the user. This parameter is valid only if the module
parameter suspend_mode is set to WOW.

To force WOW in connected state and cut power
in disconnected state:
  suspend_mode=0x3 wow_mode=0x1

To force WOW in connected state and deep sleep
in disconnected state (this is also the default wow_mode):
   suspend_mode=0x3 wow_mode=0x2

If there is no value specified to wow_mode during insmod,
deep sleep mode will be tried in the disconnected state.

kvalo: clarified commit log

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-07 09:17:10 +02:00
Kalle Valo
05e5bd0f3d Merge remote branch 'wireless-next/master' into ath6kl-next
Conflicts:
	drivers/net/wireless/ath/ath6kl/cfg80211.c
2012-03-05 19:32:58 +02:00
Thomas Pedersen
67cd22e48d ath6kl: implement hidden ssid
The ath6kl FW does not distinguish between different types of hidden
SSIDs (empty or null), so treat all cfg80211 requests for hidden ssid
the same.

Signed-off-by: Thomas Pedersen <c_tpeder@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-01 08:39:12 +02:00
Aarthi Thiruvengadam
080eec4fb4 ath6kl: Clear the IE in firmware if not set
Remove check so that IE in firmware is cleared if not set. Without this fix, any
previously set IE will be used incorrectly in the next frame. For example,
consider the scenario where a P2P device scan is followed by a regular station
scan. The P2P IE set by the P2P scan needs to be cleared, otherwise the station
scan will contain the P2P IE.

kvalo: indentation fixes

Signed-off-by: Aarthi Thiruvengadam <athiruve@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-01 08:37:32 +02:00
Vasanthakumar Thiagarajan
e5348a1e33 ath6kl: Make sure wiphy is registered before calling regulatory_hint()
As regulatory events are processed even before the wiphy is registered,
calling regulatory_hint() at early stage should be fixed.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-01 08:33:45 +02:00
Vasanthakumar Thiagarajan
f2afdac709 ath6kl: Group wiphy initialization into ath6kl_cfg80211_init()
There are some code which initializes various wiphy members
left outside ath6kl_cfg80211_init(), in ath6kl_core_init().
Move them into a single palce.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-01 08:30:18 +02:00
Vasanthakumar Thiagarajan
faaf192908 ath6kl: Register driver ht capabilities in wiphy
Register driver's ht capabilities in wiphy to avoid failures
in setting ht channels from hostapd.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-02-28 11:13:44 +02:00
Vasanthakumar Thiagarajan
13423c3119 ath6kl: Make foreground scan a deterministic one
This makes the device get into scan state as soon as a
scan request is received, instead of blocking the scan
request till the traffic comes down. It is  necessary
for the deterministic foreground scan particularly when
having multiple vif operating where, if the scan is non-
deterministic, scan on one interface will not start
as long as there are traffic on the other interface. This
change passes 50 msec as foreground scan interval to fix this.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-02-28 10:39:39 +02:00
Vasanthakumar Thiagarajan
cc4d623de4 ath6kl: Remove bogus non-NULL pointer check
In ath6kl_cfg80211_add_key(), params is checked for non-NULL
but this pointer has been deferenced many times before this check. This
gives the following smatch warning. add_key() can never carry NULL as
params, remove this bogus check.

ath6kl_cfg80211_add_key(86) warn: variable dereferenced before check 'params'

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-02-27 19:24:30 +02:00
Naveen Gangadharan
d0ff7383a3 ath6kl: Add unicast mgmt frame buffering
PS buffering of unicast Action frames that are sent in a context
of a BSS. In AP mode when the recepient station goes to powersave
and PS_POLL flag is not set, we would buffer the frames. Send out
unicast mgmt bufferred frame when PS_POLL is received.

This fixes a bug in P2P GO behavior when sending a GO Discoverability
Request to a client that is in sleep mode.

kvalo: indentation fixes

Signed-off-by: Thirumalai Pachamuthu <tpachamu@qca.qualcomm.com>
Signed-off-by: Naveen Gangadharan <ngangadh@qca.qualcomm.com>
Signed-off-by: Aarthi Thiruvengadam <athiruve@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-02-27 15:49:06 +02:00
Johannes Berg
8860020e0b cfg80211: restructure AP/GO mode API
The AP/GO mode API isn't very clearly defined, it
has "set beacon" and "new beacon" etc.

Modify the API to the following:
 * start AP -- all settings
 * change beacon -- new beacon data
 * stop AP -- stop AP mode operation

This also reflects in the nl80211 API, rename
the commands there correspondingly (but keep
the old names for compatibility.)

Overall, this makes it much clearer what's going
on in the API.

Kalle developed the ath6kl changes, I created
the rest of the patch.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-22 14:51:18 -05:00
Vasanthakumar Thiagarajan
1b2df40734 ath6kl: Update license header
Update license header with the copyright to Qualcomm Atheros, Inc.
for the year 2011-2012.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-02-08 11:31:31 +02:00
Masanari Iida
3c325fbd0c ath6kl: Fix typo in cfg80211.c
Correct spelling "spported" to "supported" in
drivers/net/wireless/ath/ath6kl/cfg80211.c

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-02-02 10:09:37 +02:00
Raja Mani
3c411a4344 ath6kl: Return a proper error code when not in connected state
Error code ENOTCONN is more suitable than EINVAL to report
when the driver is not in connected state in ath6kl_wow_suspend().

I found this during code review.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-01-30 21:22:55 +02:00
Raja Mani
081c7a84e9 ath6kl: Wait for host sleep mode cmd processed event during WOW suspend
For every WMI_SET_HOST_SLEEP_MODE_CMDID command (send from the host),
the firmware sends WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID as
an acknowledgement to the host.

In order to being sync with the firmware, the host has to wait for
WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENT event before going to
the suspend state. This patch ensures ath6kl_wow_suspend() waits
until it gets this event after sending set host sleep mode command.

This patch adds,
 * New command WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID in
   WMI event table.
 * New WMI function ath6kl_wmi_host_sleep_mode_cmd_prcd_evt_rx()
   to process the event.
 * New flag HOST_SLEEP_MODE_CMD_PROCESSED in VIF flags to record
   the arrival of the event.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-01-30 21:22:55 +02:00
Raja Mani
d91e8eee04 ath6kl: Configure WOW patterns while going to wow_suspend
First preference is given to the user configured WOW patterns.
If the user doesn't configure any patterns (for ex, via iw command),
the default patterns will be configured based on the current mode
(vif->nw_type) while going to WOW suspend.

Summary of changes:

  * ath6kl_wow_ap() is added to configure the below default
    patterns when the system enters into WOW suspend in AP mode.
      + Unicast IP, EAPOL-like and ARP packet pattern
      + ARP packet pattern
      + mDNS/SSDP/LLMNR pattern
      + DHCP broadcast pattern

 * ath6kl_wow_sta() is added to configure the below default
   patterns when the system enters into WOW suspend in STA mode.
      + Unicast packet pattern
      + mDNS/SSDP/LLMNR pattern

  * Move the user provided WOW patterns configuration code
    from ath6kl_wow_suspend() to a separate function called
    ath6kl_wow_usr().

  * Two argument variable's ('filter' and 'mask) data type in
    ath6kl_wmi_add_wow_pattern_cmd() are changed from 'u8 *' to
    'const u8 *'. This is needed to make all pattern and mask
    arrays to be 'static const u8' in the caller function.

  * New conditional check is added to make sure user
    configured pattern count is within the limit (WOW_MAX_FILTERS_PER_LIST).

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-01-30 21:22:55 +02:00
Vasanthakumar Thiagarajan
1d2a4456de ath6kl: Fix bug in maintaining aggregation state in AP mode
Currently rx aggregation related states are maintained per
vif, but this will not properly work when operating in AP mode.
Aggregation is completely broken when more than one
11n stations are connected to AP mode vif. Fix this issue
by keeping station specific aggregation state in sta_list.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-01-24 14:12:27 +02:00
Vasanthakumar Thiagarajan
7baef812eb ath6kl: Define a structure for connection specific aggregation information
This patch just groups connection specific aggregation information
from struct aggr_info into a new structure (struct aggr_info_conn)
so that, in softAP mode, this can be used when each connected station
is made to have it's own aggregation state.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-01-24 14:12:27 +02:00
Kalle Valo
d6a434d60e ath6kl: create ath6kl_core.ko
Now ath6kl is ready for splitting core code to ath6kl_core.ko module.
This also makes it possible to link both sdio and usb code to kernel
at the same time, which earlier failed miserably.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-01-18 13:59:51 +02:00
Kalle Valo
45eaa78f75 ath6kl: create core.c
Currently core functions are spread between various files, group all
the functions into file and rename the functions to follow the style
used elsewhere in the driver. This will make it easier to a separate core
module.

Also fix a bug where wiphy is freed too early.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-01-18 13:59:49 +02:00
Kalle Valo
46d33a21cf ath6kl: unify cfg80211 init/cleanup functions
Group them together and change the naming to follow the common style in
ath6kl. No functional changes.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-01-18 13:51:13 +02:00
Kalle Valo
c25889e8a6 ath6kl: rename vif init and cleanup functions
ath6kl_cfg80211_vif_init/cleanup() follow more closely the style used
elsewhere in ath6kl.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-01-18 13:51:11 +02:00
Thirumalai Pachamuthu
c1762a3fe1 ath6kl: Add support for uAPSD
* A new APSD power save queue is added in the station structure.
* When a station has APSD capability and goes to power save, the frame
  designated to the station will be buffered in APSD queue.
* When the host receives a frame which the firmware marked as trigger,
  host delivers the buffered frame from the APSD power save queue.
  Number of frames to deliver is decided by MAX SP length.
* When a station moves from sleep to awake state, all frames buffered
  in APSD power save queue are sent to the firmware.
* When a station is disconnected, all frames bufferes in APSD power save
  queue are dropped.
* When the host queues the first frame to the APSD queue or removes the
  last frame from the APSD queue, it is indicated to the firmware using
  WMI_AP_APSD_BUFFERED_TRAFFIC_CMD.

kvalo: fix buggy handling of sks queues, made it more obvious
the user priority when wmm is disabled, remove unneed else block and
combined some variable declarations

Signed-off-by: Thirumalai Pachamuthu <tpachamu@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-01-13 13:48:25 +02:00
Sujith Manoharan
8232736dab ath6kl: Fix listen interval handling
This patch addresses a few problems with the commit:

"ath6kl: Implement support for listen interval from userspace"

* The debugfs file required for reading/writing the listen interval
  wasn't created. Fix this.

* The interface index was being hardcoded to zero. Fix this.

* Two separate parameters, "listen_interval_time and listen_interval_beacons"
  were being used. This fails to work as expected because the FW assigns
  higher precedence to "listen_interval_beacons" and "listen_interval_time"
  ends up being never used at all.

  To handle this, fix the host driver to exclusively use listen interval
  based on units of beacon intervals.

To set the listen interval, a user would now do something like this:

echo "10" > /sys/kernel/debug/ieee80211/*/ath6kl/listen_interval

kvalo: fix two checkpatch warnings

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-01-12 13:36:37 +02:00
Sujith Manoharan
4a8ce2fd05 ath6kl: Remove redundant pointer check
'params' is already used earlier and there is no point
in checking for a NULL condition again.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-01-12 13:36:37 +02:00
Vasanthakumar Thiagarajan
80abaf9b4c ath6kl: Implement ndo_set_rx_mode()
There are maximum of seven multicast filter are supported
by hw. When the requested number of filters exceeds the
maximum supported one, multicast filtering is completely
disabled, the requested filters will be configured in
firmware and the only multicast frames that host is interested
in will be passed to host for further processing otherwise.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
2012-01-09 12:29:17 +02:00
Vivek Natarajan
792ecb3308 ath6kl: Remove redundant key_index check.
Less-than-zero comparison of an unsigned value is never true.

kvalo: remove WMI_MIN_KEY_INDEX altogether, it's useless

Signed-off-by: Vivek Natarajan <nataraja@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-01-02 18:38:32 +02:00
Jouni Malinen
ba1f6fe393 ath6kl: Advertise TX/RX support for frames in AP mode
This is needed to fix current hostapd/wpa_supplicant AP operations for
frame registration. P2P GO mode already advertised these, but AP mode
was forgotten and could not be used after the hostapd/wpa_supplicant
frame registration changes.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-01-02 18:16:48 +02:00
Jouni Malinen
33e5308d8a ath6kl: Add del_station cfg80211_ops
hostapd/wpa_supplicant AP mode uses this operation to flush the station
entries. Implement this in ath6kl to avoid unnecessary warnings from
NL80211_CMD_DEL_STATION failing.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-01-02 18:14:54 +02:00
Sujith Manoharan
e68f67509d ath6kl: Fix panic when setting a channel
cfg80211 could pass a NULL net_device to the driver via the
set_channel() callback, when it receives a request to set the
device's channel. Not handling this case properly results in this panic:

BUG: unable to handle kernel NULL pointer dereference at 0000000000000cb0
IP: [<ffffffffa0374e49>] ath6kl_cfg80211_ready+0x9/0x70 [ath6kl_sdio]

Call Trace:
[<ffffffffa0374ed7>] ath6kl_set_channel+0x27/0x90 [ath6kl_sdio]
[<ffffffffa04dfd5f>] cfg80211_set_freq+0xff/0x1d0 [cfg80211]
[<ffffffffa04d3275>] ? nl80211_set_wiphy+0x85/0x660 [cfg80211]
[<ffffffffa04d3198>] __nl80211_set_channel.isra.39+0x118/0x140 [cfg80211]
[<ffffffffa04d34f3>] nl80211_set_wiphy+0x303/0x660 [cfg80211]
[<ffffffff813678d7>] ? rtnl_lock+0x17/0x20
[<ffffffffa04ca165>] ? nl80211_pre_doit+0xb5/0x150 [cfg80211]
[<ffffffff81382a45>] genl_rcv_msg+0x1d5/0x250
[<ffffffff81382870>] ? genl_rcv+0x40/0x40
[<ffffffff81381be9>] netlink_rcv_skb+0xa9/0xd0
[<ffffffff81382855>] genl_rcv+0x25/0x40
[<ffffffff811354f0>] ? might_fault+0x40/0x90
[<ffffffff81381519>] netlink_unicast+0x2d9/0x320
[<ffffffff813818e6>] netlink_sendmsg+0x2c6/0x320
[<ffffffff81343800>] ? sock_update_classid+0xb0/0x110
[<ffffffff8133f52e>] sock_sendmsg+0x10e/0x130
[<ffffffff81169933>] ? mem_cgroup_update_page_stat+0x193/0x250
[<ffffffff811354f0>] ? might_fault+0x40/0x90
[<ffffffff811354f0>] ? might_fault+0x40/0x90
[<ffffffff81135539>] ? might_fault+0x89/0x90
[<ffffffff811354f0>] ? might_fault+0x40/0x90
[<ffffffff8134d126>] ? verify_iovec+0x56/0xd0
[<ffffffff8133f9e6>] __sys_sendmsg+0x396/0x3b0
[<ffffffff8108e823>] ? up_read+0x23/0x40
[<ffffffff81040e68>] ? do_page_fault+0x208/0x4e0
[<ffffffff81193151>] ? vfsmount_lock_local_unlock+0x21/0x60
[<ffffffff811947d0>] ? mntput_no_expire+0x30/0xe0
[<ffffffff8119489f>] ? mntput+0x1f/0x30
[<ffffffff81342149>] sys_sendmsg+0x49/0x90
[<ffffffff81425482>] system_call_fastpath+0x16/0x1b

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-12-23 15:13:03 +02:00
Raja Mani
c08631c6e4 ath6kl: Send own IP addr to the firmware during WOW suspend
Firmware ARP module requires own IP addr in order to respond
to the outside world when the target is in WOW suspend state.

At present, firmware ARP module has capability to hold 2 IP addr.
So, WOW mode will be disabled if the total IP addr configured in
net_dev for our device is greater than firmware limit (MAX_IP_ADDRS)
which is 2 at this moment.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Thirumalai Pachamuthu <tpachamu@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-12-23 14:50:06 +02:00
Jouni Malinen
6e786cb1e5 ath6kl: Fix connect command to clear previously used IEs
Empty IE buffer means that the new association is not supposed to
include extra IEs. Make sure any previously configured (Re)Association
Request frame IEs get cleared in such a case. This is based on a patch
from Shuibing.

Cc: Dai Shuibing <shuibing@qca.qualcomm.com>
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-12-23 14:42:44 +02:00
Vasanthakumar Thiagarajan
5e13fd354a ath6kl: Use cfg80211_roamed_bss() to report roaming event
This is to avoid the scenario where the bss entry of the AP got
expired when reporting roaming event to current AP. As the bss
entry for the current bss is available in driver, pass this bss
to cfg80211. This fixes WARNING: at net/wireless/sme.c:586.

This patch depends on the following patch in cfg80211
"cfg80211: Fix race in bss timeout".

Reported-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-12-23 14:31:18 +02:00
Kalle Valo
7e95e365d5 Merge remote branch 'wireless-next/master' into ath6kl-next
Conflicts:
	drivers/net/wireless/ath/ath6kl/init.c
2011-12-16 21:10:39 +02:00
Aarthi Thiruvengadam
3ca9d1fc9a ath6kl: support for P2P mgmt operations on station interface
This patch enables support for doing P2P management operations like device
discovery on top of a station interface. After group formation, the station
interface will become a P2P GO/client interface as the case may be.

This feature requires modifications to a couple of existing WMI structures and
therefore new command ids and structures have been defined in order to be
compatible with older firmware versions and other chips. The exception here is
the wmi_connect_cmd. Adding a new field to the end of the structure will not
cause any issues with previous firmware versions since firmware only checks for
minimum length of the command. The other structures are of variable length,
hence it was not possible to add new fields to the end.

The new command ids have to be added to the end of enum wmi_cmd_id, so it has
updated to match the firmware.

The driver will support both the 'old' and the 'new' commands for a while by
checking the firmware capabilities.

Signed-off-by: Aarthi Thiruvengadam <athiruve@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-12-14 20:43:05 +02:00
Kalle Valo
10509f903e ath6kl: implement scheduled scan
ath6kl firmware supports scheduled scan functionality with the wow ssid
filter. But the firmware does not send any events after scan results
so I had to add a timer which notifies about new scan results.

Sched scan needs firmware version 3.2.0.6 or later. If firmware doesn't
support sched scan the driver will not enable the feature.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-12-13 15:03:49 +02:00
Kalle Valo
7125f01d98 ath6kl: implement ath6kl_cfg80211_stop_all()
During suspend we need to stop all vifs, not just the first.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-12-13 15:03:46 +02:00
Kalle Valo
c97a31b002 ath6kl: remove a workaround from ath6kl_cfg80211_stop()
There's a workaround in ath6kl_cfg80211_stop() which emits disconnected
even when sme_state was disconnected. This is legacy from the old
staging driver and I can't repoduce the old problem anymore. I assume the
bug got fixed while the driver was cleaned up so let's get
rid of the hack.

This makes it possible to call ath6kl_cfg80211_stop from ath6kl_close()
which happens in a followup patch.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-12-13 15:03:45 +02:00
Kalle Valo
d6d5c06c3c ath6kl: cleanup ath6kl_priv()
It really should not return a void pointer. Also remove useless casts
from its users.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-12-13 14:46:22 +02:00
Jouni Malinen
4703290af4 ath6kl: Use delayed key configuration for WAPI in AP mode
This is needed to allow WAPI AP to configure the initial group key
to the target in the same way as is done with TKIP/CCMP. This
fixes broadcast data frame delivery with the initial group key.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-12-13 14:21:30 +02:00
Kalle Valo
0bb4e30f13 ath6kl: remove unused sc_params from struct ath6kl
It was only initialised but not used anywhere. Also remove two defines
which ended up unused after this change.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-24 14:31:37 +02:00
Luis R. Rodriguez
b992a28557 ath6kl: fix ath6kl's set tx power
ath6kl assumed cfg80211 passed to us power in dBm but it is in mBm.

Cc: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-24 14:30:22 +02:00
John W. Linville
515db09338 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
Conflicts:
	drivers/net/wireless/iwlegacy/iwl-debugfs.c
	drivers/net/wireless/iwlegacy/iwl-rx.c
	drivers/net/wireless/iwlegacy/iwl-scan.c
	drivers/net/wireless/iwlegacy/iwl-tx.c
	include/net/bluetooth/bluetooth.h
2011-11-22 14:05:46 -05:00
Dan Carpenter
743b4518f9 ath6kl: unlock if ath6kl_cfg80211_connect() fails
There is an unlock missing on this error path.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-21 19:47:08 +02:00
Vasanthakumar Thiagarajan
f143379dbf ath6kl: Find ar->max_norm_iface in firmware IE parsing
Currently the max number of vifs which can be used for non-p2p
mode is determined in ath6kl_core_alloc(). But the maximum
supported vifs are parsed from firmware IE in ath6kl_fetch_fw_api2()
which would happen after ath6kl_core_alloc().

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-21 19:47:08 +02:00
Vasanthakumar Thiagarajan
774439ad88 ath6kl: Remove modparam multi_norm_if_support
This modparam was introduced to enable non-p2p mode operation
on two virtual interfaces. It does not seem to be necessary to
have a separate module parameter to do that. Instead, this option
can be enabled when any one of the interfaces is not going to be
used for p2p (ath6kl_p2p).

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-21 19:47:08 +02:00
Vasanthakumar Thiagarajan
59500b4864 ath6kl: Fix AP mode operation after interface down/up
When operating AP interface is brough down the mode is reset to
STA. This STA will be reconfigured into AP mode when the interface
is brought up again. This sequence will be successful only when
change_virtual_intf() returns with no error, but there is a
check in this callback which does the type change only when
that interface is active. This callback does nothing more
than saving the new interface type to vif and wdev, so the
sanity check for interface state and wmi state is not necessary.
This makes the AP interface functional again after interface down/up.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-16 10:51:12 +02:00
Raja Mani
542c519a0e ath6kl: Clear WPS ctrl flag if zero length IE is received from cfg80211
Connect control flag CONNECT_WPS_FLAG has to be cleared
by default even if the driver receives zero length IE
from cfg80211.

Otherwise this flag would be always set after WPS exchange
which would lead wpa_supplicant to fail to connect with
the received WPS credentials. This issue is observed only
in OPEN security.

kvalo: use cfg80211 instead of CFG in the commit log

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-16 10:39:39 +02:00
Kalle Valo
71f96ee6c6 ath6kl: make maximum number of vifs runtime configurable
Needed when detecting how many vifs firmware supports.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-16 10:22:34 +02:00
Vasanthakumar Thiagarajan
be5abaafad ath6kl: Fix bug in setting dot11_auth_mode in AP mode
OPEN_AUTH is passed as dot11_auth_mode by default, this would
affect the AP mode when configured with shared authentication
type. Assign appropriate auth type to fix this from driver.
A patch in wpa_supplicant (wpa_supplicant: Set configured auth_algs)
is also needed to fix this.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-13 12:44:28 +02:00
Vasanthakumar Thiagarajan
7cefa44f14 ath6kl: Fix bug in setting default key index for tx in AP mode
vif->def_txkey_index is set to key_index in ath6kl_cfg80211_add_key().
If the interface is configured with multiple static wep keys,
vif->def_txkey_index would be holding the index of the last key configured,
not the default tx key index. Remove this unnecessary default key index setting
in ath6kl_cfg80211_add_key() to configure the right key index in WEP thereby
make it work when multiple wep keys are configured.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-13 12:44:28 +02:00
Raja Mani
4eab6f4f43 ath6kl: Fix cfg80211 warning while starting IBSS mode
When the connect event is received from the target in IBSS mode,
cfg80211_ibss_joined() is called without informing BSS info to
cfg80211 layer which internally hits the below WARN_ON message.

WARNING: at net/wireless/ibss.c:33 __cfg80211_ibss_joined+0x153/0x180 [cfg80211]()
[..]
[ 4916.845878] Call Trace:
[ 4916.845889]  [<c10427d2>] warn_slowpath_common+0x72/0xa0
[ 4916.845905]  [<f8bccc63>] ? __cfg80211_ibss_joined+0x153/0x180 [cfg80211]
[ 4916.845918]  [<f8bccc63>] ? __cfg80211_ibss_joined+0x153/0x180 [cfg80211]
[ 4916.845923]  [<c1042822>] warn_slowpath_null+0x22/0x30
[ 4916.845934]  [<f8bccc63>] __cfg80211_ibss_joined+0x153/0x180 [cfg80211]
[ 4916.845941]  [<c1025108>] ? default_spin_lock_flags+0x8/0x10
[ 4916.845952]  [<f8bb7fcd>] cfg80211_process_rdev_events+0x19d/0x220 [cfg80211]
[ 4916.845962]  [<f8bb669b>] cfg80211_event_work+0x2b/0x50 [cfg80211]
[ 4916.845968]  [<c105aae6>] process_one_work+0x116/0x3c0
[ 4916.845977]  [<f8bb6670>] ? cfg80211_get_dev_from_info+0x40/0x40 [cfg80211]
[ 4916.845982]  [<c105cdf0>] worker_thread+0x140/0x3b0
[ 4916.845986]  [<c105ccb0>] ? manage_workers+0x1f0/0x1f0
[ 4916.845991]  [<c1060c64>] kthread+0x74/0x80
[ 4916.845995]  [<c1060bf0>] ? kthread_worker_fn+0x160/0x160
[ 4916.846001]  [<c14e7bbe>] kernel_thread_helper+0x6/0x10
[ 4916.846005] ---[ end trace 769254924e409367 ]---

This patch make sures that BSS info is delivered via cfg80211_inform_bss()
to cfg80211 in advance before intimating IBSS status to cfg80211.

In addition to this, one debug message is also added to know
ad-hoc mode status (creator/joiner).

kvalo: change subject

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-13 12:28:38 +02:00
Dai Shuibing
b8214df1d9 ath6kl: Allow SMS4 to be configured in AP mode
Signed-off-by: Dai Shuibing <shuibing@qca.qualcomm.com>
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-13 10:57:38 +02:00
Dai Shuibing
5e07021e43 ath6kl: Add support for configuring SMS4 keys
Indicate support for WPI-SMS4 cipher and allow SMS4 keys to be
configured.

Signed-off-by: Dai Shuibing <shuibing@qca.qualcomm.com>
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-13 10:57:38 +02:00
Raja Mani
eae9e0661b ath6kl: Expose ath6kl's WOW capabilities to cfg80211
Set the list of ath6kl's WOW trigger options in wiphy->wowlan.flags
variable during wiphy registration. So that, those options can be
configured via iw.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 13:00:00 +02:00
Raja Mani
a918fb3cc6 ath6kl: Perform WOW resume in RX path in case of SDIO IRQ wake up
The target triggers sdio data line to wake up the host when
WOW pattern matches. This causes sdio irq handler is being
executed in the host side which internally hits ath6kl's RX path.

WOW resume should happen before start processing any data from
the target. So it's required to perform WOW resume in RX path.

This area needs bit rework to avoid WOW resume in RX path,
As of now it's fine to have this model, rework will be done later.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 13:00:00 +02:00
Raja Mani
d7c44e0ba5 ath6kl: Invoke WOW suspend/resume calls during PM operation
Link ath6kl's wow suspend/resume functions with the actual suspend/resume path.

WOW mode is selected when the host sdio controller supports both
MMC_PM_KEEP_POWER and MMC_PM_WAKE_SDIO_IRQ capabilities.

kvalo: also adds a missing break in ath6kl_cfg80211_resume(), luckily
it didn't have any effect on functionality.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 13:00:00 +02:00
Raja Mani
524441e3a7 ath6kl: Move ath6kl_cfg80211_stop() call specific to deep sleep and cut pwr
ath6kl_cfg80211_stop() call is not applicable for WOW mode. Hence moving
this call to deep sleep and cut pwr specific cases.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:59:59 +02:00
Raja Mani
0f60e9f4c2 ath6kl: Include new parameter in suspend path for wowlan
cfg80211 layer provides user defined wow parameters like Filter options, Patterns,
Pattern's mask, etc via "struct cfg80211_wowlan *wow" to suspend function.

Right now, this wowlan parameter is not handled in __ath6kl_cfg80211_suspend func.
This parameter has to be passed to HIF layer, So that it can be passed back to
ath6kl's cfg interface layer when WOW mode is selected.

In case of deep sleep and cut power mode, it's not handled.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:59:59 +02:00
Raja Mani
6cb3c714e7 ath6kl: Add WOW suspend/resume implementation
This is the core WOW suspend/resume functions will be called
in PM suspend/resume path.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:59:59 +02:00
Jouni Malinen
f3e61eceb2 ath6kl: Do not hide ath6kl_wmi_addkey_cmd() error values
Instead of converting any error to EIO, just return the real error
value to upper layers.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:59:59 +02:00
Jouni Malinen
f4bb9a6fbc ath6kl: Fix key configuration to copy at most seq_len from seq
There is no guarantee on the caller using 8-octet buffer for
key->seq, so better follow the key->seq_len parameter on figuring
out how many octets to copy.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:59:59 +02:00
Vasanthakumar Thiagarajan
11f6e40d9f ath6kl: Fix lockdep warning
The following is the lockdep warning which detects possible
deadlock condition with the way ar->lock and ar->list_lock
are being used.

  (&(&ar->lock)->rlock){+.-...}, at: [<ffffffffa0492d13>] ath6kl_indicate_tx_activity+0x83/0x110 [ath6kl]
 but this lock took another, SOFTIRQ-unsafe lock in the past:
  (&(&ar->list_lock)->rlock){+.+...}

 and interrupts could create inverse lock ordering between them.

 other info that might help us debug this:
  Possible interrupt unsafe locking scenario:

        CPU0                    CPU1
        ----                    ----
   lock(&(&ar->list_lock)->rlock);
                                local_irq_disable();
                                lock(&(&ar->lock)->rlock);
                                lock(&(&ar->list_lock)->rlock);
   <Interrupt>
     lock(&(&ar->lock)->rlock);

  *** DEADLOCK ***

softirqs have to be disabled when acquiring ar->list_lock to avoid
the above deadlock condition. When the above warning printed the
interface is still up and running without issue.

Reported-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:59:00 +02:00
Kalle Valo
b4b2a0b116 ath6kl: cut power during suspend
If sdio controller doesn't support keep power, cut power from hardware
during suspend and restart firmware during resume. If we are connected
during suspend, send a disconnected event to user space.

Earlier suspend failed with an error if sdio didn't support keep power.
Now suspend will happen succesfully even with that case.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:59:00 +02:00
Kalle Valo
76a9fbe27e ath6kl: add state variable depicting hw/fw state
This way it's easier to track state changes and in the future add
more warnings about using hardware in wrong states. Currently there
are few random flags for trying to do the same, those will be cleaned
and removed in the future.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:59:00 +02:00
Kalle Valo
52d81a6883 ath6kl: implement ath6kl_cfg80211_suspend()
This is in preparation for cutpower suspend feature. HIF layer makes
the decision based on information provided by cfg80211 and what hardware
actually supports. Then it calls ath6kl_cfg80211_suspend() to enable
the chosen mode.

Functionality should be the same, this is just preparation for
more suspend modes (cutpower and wow).

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:59:00 +02:00
Kalle Valo
1f40525512 ath6kl: reset CONNECT_PEND and CONNECTED flags in ath6kl_cfg80211_stop()
Otherwise first connection establish after cutpower suspend will
fail.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:59:00 +02:00
Kalle Valo
ec4b7f602d ath6kl: create ath6kl_cfg80211_stop()
Just take code from deep sleep for now, will be improved later. No
functional changes.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:59 +02:00
Kalle Valo
1c17d31389 ath6kl: add aborted parameter to ath6kl_cfg80211_scan_complete_event()
Currently it takes an error code as status, but what we really want to
tell is if the scan was aborted or not.

Also fix a bug where we were comparing firmware scan status values
with kernel error codes, which is obviously wrong. This meant
that ath6kl didn't detect when firmware informed about failed scans. I
doubt that this fix doesn't make any difference in practise but it
still needs to be fixed. This is fixed by adding an enum for the success
status code and checking for that.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:59 +02:00
Kalle Valo
cb93821a9e ath6kl: don't use cfg80211_scan_request after cfg80211_scan_done()
Use of cfg80211_scan_request is not valid after calling cfg80211_scan_done()
but ath6kl_cfg80211_scan_complete_event() was doing exactly that. Change
the function to call cfg80211_scan_done() last.

This was found during code review, I didn't see any visible problems
due to this bug.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:55 +02:00
Jouni Malinen
1052261e4b ath6kl: Report unique remain-on-channel cookie values
Even though only a single concurrent remain-on-channel operation is
supported, there may be two pending remain-on-channel events (one to
indicate end of a canceled operation and another to indicate start of a
new operation). User space won't be able to distinguish these events
unless unique cookies are used.

The previous behavior resulted in wpa_supplicant getting quite
confused about the driver's offchannel state in various sequences
and this made the P2P state machine behave incorrectly. Use of
more than a single remain-on-channel cookie value fixes this.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:55 +02:00
Aarthi Thiruvengadam
635412127e ath6kl: add support for WPS
Add control flag CONNECT_WPS_FLAG if a WPS IE is present in the
Association Request IEs. This flag is needed when the station must
connect to a WPS-enabled AP.

Signed-off-by: Aarthi Thiruvengadam <athiruve@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:54 +02:00
Vasanthakumar Thiagarajan
551959d84d ath6kl: Use appropriate wdev from vif
Remove the wdev reference in struct ath6kl.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:53 +02:00
Vasanthakumar Thiagarajan
3226f68af4 ath6kl: Add a modparam to enable multi normal interface support
This option lets operate more than one vif in normal mode (AP/STA/IBSS)
when support for multiple vif is enabled. This modparam needs to be used
as

modprobe ath6kl multi_norm_if_support=1

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:52 +02:00
Vasanthakumar Thiagarajan
55055976fe ath6kl: Implement add_virtual_intf() and del_virtual_intf()
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:52 +02:00
Vasanthakumar Thiagarajan
2792972395 ath6kl: Use the other variant of netdev (un)register APIs
Use replace (un)register_netdev() with (un)register_netdevice()
so that the same ath6kl function can be used with
add_virtual_intf()/del_virtual_intf().

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:52 +02:00
Vasanthakumar Thiagarajan
990bd91519 ath6kl: Maintain virtual interface in a list
This patch removes all references to ar->vif and takes
vif from a list.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:52 +02:00
Vasanthakumar Thiagarajan
478ac02721 ath6kl: Introduce spinlock to protect vif specific information
Use this spinlock to protect the vif's data instead of
one from ath6kl.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:50 +02:00
Vasanthakumar Thiagarajan
6db8fa53ad ath6kl: Refactor ath6kl_destroy()
So that the deinitialization of ath6kl and vif are separated.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:49 +02:00
Vasanthakumar Thiagarajan
e29f25f5cd ath6kl: Cleanup parameters in ath6kl_init_control_info() and ath6kl_init_profile_info()
Pass vif structure to those functions instead of ath6kl because these
functions do vif specific information initialization.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:49 +02:00
Vasanthakumar Thiagarajan
28ae58dd1f ath6kl: Remove net_device from ath6kl
Use one which is available in vif structure instead.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:48 +02:00
Vasanthakumar Thiagarajan
240d279940 ath6kl: Take vif information from wmi event
Interface index is passed in wmi command header from target.
Use this index to get the appropriate vif.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:48 +02:00
Vasanthakumar Thiagarajan
334234b514 ath6kl: Maintain firmware interface index in struct ath6kl_vif
Pass this index to target in wmi commands to specify the interface
for which the command needs to be handled.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:48 +02:00
Vasanthakumar Thiagarajan
b95907a744 ath6kl: Make net and target stats vif specific
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:48 +02:00
Vasanthakumar Thiagarajan
cf5333d70f ath6kl: Move few more vif specific information to struct ath6kl_vif
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:48 +02:00
Vasanthakumar Thiagarajan
14ee6f6b7d ath6kl: Move scan_req info and sme_state to vif
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:48 +02:00
Vasanthakumar Thiagarajan
de3ad7138c ath6kl: Move disconnect timer to vif structure
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:48 +02:00
Vasanthakumar Thiagarajan
2132c69cb9 ath6kl: Move aggregation information to vif structure
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:47 +02:00
Vasanthakumar Thiagarajan
6f2a73f9e5 ath6kl: Move key information to vif structure
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:47 +02:00
Vasanthakumar Thiagarajan
f74bac54a5 ath6kl: Move channel information to vif structure
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:47 +02:00
Vasanthakumar Thiagarajan
8c8b65e3e3 ath6kl: Move bssid information to vif structure
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:47 +02:00
Vasanthakumar Thiagarajan
f5938f249a ath6kl: Move nw_type to vif structure
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:47 +02:00
Vasanthakumar Thiagarajan
3450334f39 ath6kl: Move ssid and crypto information to vif structure
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:47 +02:00
Vasanthakumar Thiagarajan
59c98449b8 ath6kl: Define interface specific states
Currently ar->flag maintains interface stats. Move interface
specific states from ar->flag to vif->flags.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:47 +02:00
Vasanthakumar Thiagarajan
108438bc6a ath6kl: Define an initial vif structure and use it
vif specific information need to be moved from struct ath6kl.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:46 +02:00
Vasanthakumar Thiagarajan
8dafb70edc ath6kl: Refactor wiphy dev and net dev init functions
This refactoring is done in a manner that it can be used
for multiple virtual interface.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:46 +02:00
Vasanthakumar Thiagarajan
be98e3a48c ath6kl: Keep wiphy reference in ath6kl structure
This is to avoid using ar->wdev to get wiphy pointer, this
may need further cleanup for multi vif support.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:58:45 +02:00
Jouni Malinen
837cb97e5b ath6kl: Allow CCKM AKM and KRK to be configured
Use vendor-specific suite selectors to allow CCKM to be configured.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:50:56 +02:00
Kevin Fang
6981ffdc2f ath6kl: Add WSC IE on the associate message
For some WPS test items, such as item "5.1.14"
STAUT must include the WSC IE in the 802.11 Association Request frame.
Therefore, add the corresponding IE in association message.

Signed-off-by: Kevin Fang <kevin.fang@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:50:56 +02:00
Chilam Ng
aa6cffc1a2 ath6kl: make sure WLAN power save is enabled during suspend
Power save is enabled during ath6kl init. But when user space disables power
save, the system will go into suspend with power save disabled. The ath6kl
driver will now explicitly enable power save prior to entering suspend and
restore its previous setting upon resume

Signed-off-by: Chilam Ng <chilamng@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:50:55 +02:00
Vasanthakumar Thiagarajan
f1f9217926 ath6kl: Enable force foreground scan in connected state
This was disabled beacause there was a network stall
issue when scan is issued. This issue does not happen
with the new firmware (3.1.1.609), enable it back.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-11-11 12:50:54 +02:00
Johannes Berg
e247bd9068 cfg80211/mac80211: allow management TX to not wait for ACK
For probe responses it can be useful to not wait for ACK to
avoid retransmissions if the station that sent the probe is
already on the next channel, so allow userspace to request
not caring about the ACK with a new nl80211 flag.

Since mac80211 needs to be updated for the new function
prototype anyway implement it right away -- it's just a
few lines of code.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-09 16:13:54 -05:00
Paul Gortmaker
6eb07caf1a drivers/net: Add moduleparam.h to drivers as required.
These files were using moduleparam infrastructure, but were not
including anything for it -- which is fine when module.h is being
implicitly included in all files, but that is going away.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31 19:31:09 -04:00
John W. Linville
5f68a2b0a8 ath6kl: fixup merge damage in ath6kl_mgmt_tx
CC [M]  drivers/net/wireless/ath/ath6kl/cfg80211.o
drivers/net/wireless/ath/ath6kl/cfg80211.c:1838:2: warning: initialization from incompatible pointer type

Caused by commit e9f935e3e8dc0bddd0df6d148165d95925422502...

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-11 15:33:10 -04:00
Kalle Valo
9a7308341b ath6kl: silence "invalid rate" warning
For some reason firmware is sending invalid rates when we try to
query current bitrate from ath6kl_get_station() and a warning is issued:

[ 3810.415720] ath6kl: invalid rate: 1935633515
[ 3811.105493] ath6kl: invalid rate: 1935633515
[ 3811.556063] ath6kl: invalid rate: 1935633515

As the warning happens way too often, convert the warning to a debug
message once we have a proper fix. But to make it easy to follow
how often the problem appears, add a debugfs to print
various statistics about workarounds and make this issue the first WAR.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-09-28 19:03:47 +03:00
Vasanthakumar Thiagarajan
1de547d6dc ath6kl: Fix disconnect event reporting
Driver does not report disconnect event properly when in connecting state,
this leads to issues failures in starting reconnection. Send a disconnect
command to target when a disconnect event is received with reason code
other than 3 (DISCONNECT_CMD - disconnect request from host) to make the
frimware stop trying to connect even after giving disconnect event. There
will be one more disconnect event for this disconnect command with reason
code DISCONNECT_CMD which will be notified to cfg80211.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-09-23 10:47:14 +03:00
Jouni Malinen
32c1087460 ath6kl: Export beacon interval and DTIM period through STA info
Now that we allow the first Beacon frame after each connection to
be processed at the host, we can figure out the DTIM period and
expose it with Beacon interval through STA info BSS parameters
to user space.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-09-22 10:08:00 +03:00
Jouni Malinen
551185ca0a ath6kl: Update BSS information after connection
Since we may end up using a dummy BSS entry when roaming, allow one Beacon
frame -based bssinfo from the current BSS to be processed prior to starting
to filter all bssinfo events. This allows cfg80211 BSS table to be filled
with proper data in the roaming case where the full Beacon data may not
have been present at the time of roamed event.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-09-22 10:07:59 +03:00
Jouni Malinen
457fb0415a ath6kl: Remove the unused node table implementation
Now that the scan results are reported directly to the cfg80211 BSS
table there is no need for maintaining this internal node table
implementation for scan results. Remove the definitions and node
table functions.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-09-22 10:07:59 +03:00
Jouni Malinen
01cac476a4 ath6kl: Fix BSS update on roaming
This fixes the BSS "update" just before the connected or roamed event.
The previous implementation was completely broken: it forced a hardcoded
signal strength and IEs from Association _Request_ frame instead of any
Beacon information. This broke various things, including PMKSA caching.

The current workaround for creating a dummy BSS entry before the roamed
event is not exactly ideal, but that is quite a bit better than the
previous state. As a future improvement, cfg80211 could potentially be
extended to allow this type of use or ath6kl could delay sending the
roamed event before receiving a BSS info event.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-09-22 10:07:58 +03:00
Jouni Malinen
151411e88f ath6kl: Fix static WEP configuration in AP mode
Configuration of the WEP keys needs to be delayed until the AP mode has
been properly started at the target. Partial support for delaying the
WEP key configuration was already in place in the driver, but the actual
part of deciding when to do this was missing.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-09-19 09:57:22 +03:00
Vasanthakumar Thiagarajan
170826dd0d ath6kl: Set the sme_state to disconnected in disconnect() callback
After a successful completion of disconnect() driver needs to set
it's sme_state to SME_DISCONNECTED to be in sync with cfg80211
state.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-09-16 18:49:26 +03:00
Vasanthakumar Thiagarajan
ac59a2b285 ath6kl: Remove auth type fall back in auto authentication mode
Target already tries with different authentication mechanism
when authentication type is configured to NL80211_AUTHTYPE_AUTOMATIC.
Remove this piece of code from driver. Having this code in driver
even affects auto + WEP authentication in some cases.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-09-16 18:49:26 +03:00
Jouni Malinen
6bbc7c35ed ath6kl: Allow enabling of P2P support
For now, use a module parameter (ath6kl_p2p) to allow P2P support
to be enabled. This is needed since there is no mechanism for
enabling the P2P mode more dynamically for a single netdev.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-09-06 21:47:00 +03:00
Jouni Malinen
6e4604c8b9 ath6kl: Allow AP mode to be configured
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-09-06 10:44:03 +03:00
Jouni Malinen
11869befc7 athk6l: Fix channel list processing in scan requests
Limit the length of the channel list to WMI_MAX_CHANNELS to avoid
rejection of the request in wmi.c. Since there is not really much
point in using a specific list of more than 32 channels, drop the
channel list if more channels are specified and scan all channels.

Fix cfg80211 scan API use: ar->scan_req must be set only if returning
success from scan() handler. The previous version would result in use
of freed memory and likely kernel panic should the scan request fail
to be sent to the target.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-09-05 11:26:47 +03:00
Kalle Valo
003353b0d2 ath6kl: add testmode support
This is port from the staging version of ath6kl. The interface to user space
is exactly same.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-09-01 10:14:21 +03:00
Jouni Malinen
1b1e6ee300 ath6kl: Return error from wmi.c instead of -EIO in ath6kl_cfg80211_scan
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-08-31 10:13:02 +03:00
Jouni Malinen
8bdfbf4072 ath6kl: Include P2P IE(s) in GO Probe Response depending on request
P2P has special rules on when to include P2P IE(s) in Probe Response
frame based on the Probe Request frame. Handle P2P IE(s) separately
to follow these rules.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-08-31 10:13:02 +03:00
Edward Lu
229ed6b55f ath6kl: Fix default key installation in AP mode
Signed-off-by: Edward Lu <elu@qca.qualcomm.com>
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2011-08-31 10:13:02 +03:00