History log of /drivers/net/wireless/ath/ath6kl/cfg80211.c
Revision Date Author Comments
5bc8c1f2b070bab82ed738f98ecfac725e33c57f 12-Aug-2014 Johannes Berg <johannes.berg@intel.com> cfg80211: allow passing frame type to cfg80211_inform_bss()

When using the cfg80211_inform_bss[_width]() functions drivers
cannot currently indicate whether the data was received in a
beacon or probe response. Fix that by passing a new enum that
indicates such (or unknown).

For good measure, use it in ath6kl.

Acked-by: Kalle Valo <kvalo@qca.qualcomm.com> [ath6kl]
Acked-by: Arend van Spriel <arend@broadcom.com> [brcmfmac]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
c835a677331495cf137a7f8a023463afd9f032f8 14-Jul-2014 Tom Gundersen <teg@jklm.no> net: set name_assign_type in alloc_netdev()

Extend alloc_netdev{,_mq{,s}}() to take name_assign_type as argument, and convert
all users to pass NET_NAME_UNKNOWN.

Coccinelle patch:

@@
expression sizeof_priv, name, setup, txqs, rxqs, count;
@@

(
-alloc_netdev_mqs(sizeof_priv, name, setup, txqs, rxqs)
+alloc_netdev_mqs(sizeof_priv, name, NET_NAME_UNKNOWN, setup, txqs, rxqs)
|
-alloc_netdev_mq(sizeof_priv, name, setup, count)
+alloc_netdev_mq(sizeof_priv, name, NET_NAME_UNKNOWN, setup, count)
|
-alloc_netdev(sizeof_priv, name, setup)
+alloc_netdev(sizeof_priv, name, NET_NAME_UNKNOWN, setup)
)

v9: move comments here from the wrong commit

Signed-off-by: Tom Gundersen <teg@jklm.no>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
eba95bceb4c9f537c6c8a5aeba4277e76599e269 16-Jun-2014 Kalle Valo <kvalo@qca.qualcomm.com> ath6kl: convert ar6004 hardware flags to firmware feature flags

The functionality defined through these flags were actually firmware features
which can change between firmware versions. To make it possible to support
different firmware versions with the same driver, convert the flags to firmware
feature flags.

For backwards compatibility support for old ar6004 firmware FW
API 3 or smaller images we forcefully set the feature bits in the driver.
Starting from FW API 5 the firmware image needs to set them.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
3b3a0162fade6b83d5c83efafcd5adb9e4537047 19-May-2014 Johannes Berg <johannes.berg@intel.com> cfg80211: constify MAC addresses in cfg80211 ops

This propagates through all the drivers and mac80211.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
a5d8f9dfcf5ead45a2f164f15ca4839325c08815 10-Mar-2014 Kalle Valo <kvalo@qca.qualcomm.com> ath6kl: use braces on both arms of if statement

Fixes checkpatch warning:

CHECK: braces {} should be used on all arms of this statement

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
3629fa14388dbfcb150f5178a018b7eb265a1189 10-Mar-2014 Kalle Valo <kvalo@qca.qualcomm.com> ath6kl: fix blank lines before and after braces

Fixes checkpatch warnings:

CHECK: Blank lines aren't necessary after an open brace '{'
CHECK: Blank lines aren't necessary before a close brace '}'

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
fe94f3a4ffaa20c7470038c69ffc8e545ef5f90a 29-Jan-2014 Antonio Quartulli <antonio@open-mesh.com> cfg80211: fix channel configuration in IBSS join

When receiving an IBSS_JOINED event select the BSS object
based on the {bssid, channel} couple rather than the bssid
only.
With the current approach if another cell having the same
BSSID (but using a different channel) exists then cfg80211
picks up the wrong BSS object.
The result is a mismatching channel configuration between
cfg80211 and the driver, that can lead to any sort of
problem.

The issue can be triggered by having an IBSS sitting on
given channel and then asking the driver to create a new
cell using the same BSSID but with a different frequency.
By passing the channel to cfg80211_get_bss() we can solve
this ambiguity and retrieve/create the correct BSS object.
All the users of cfg80211_ibss_joined() have been changed
accordingly.

Moreover WARN when cfg80211_ibss_joined() gets a NULL
channel as argument and remove a bogus call of the same
function in ath6kl (it does not make sense to call
cfg80211_ibss_joined() with a zero BSSID on ibss-leave).

Cc: Kalle Valo <kvalo@qca.qualcomm.com>
Cc: Arend van Spriel <arend@broadcom.com>
Cc: Bing Zhao <bzhao@marvell.com>
Cc: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Cc: libertas-dev@lists.infradead.org
Acked-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
[minor code cleanup in ath6kl]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
ea73cbce4e1fd93113301532ad98041b119bc85a 24-Jan-2014 Johannes Berg <johannes.berg@intel.com> nl80211: fix scheduled scan RSSI matchset attribute confusion

The scheduled scan matchsets were intended to be a list of filters,
with the found BSS having to pass at least one of them to be passed
to the host. When the RSSI attribute was added, however, this was
broken and currently wpa_supplicant adds that attribute in its own
matchset; however, it doesn't intend that to mean that anything
that passes the RSSI filter should be passed to the host, instead
it wants it to mean that everything needs to also have higher RSSI.

This is semantically problematic because we have a list of filters
like [ SSID1, SSID2, SSID3, RSSI ] with no real indication which
one should be OR'ed and which one AND'ed.

To fix this, move the RSSI filter attribute into each matchset. As
we need to stay backward compatible, treat a matchset with only the
RSSI attribute as a "default RSSI filter" for all other matchsets,
but only if there are other matchsets (an RSSI-only matchset by
itself is still desirable.)

To make driver implementation easier, keep a global min_rssi_thold
for the entire request as well. The only affected driver is ath6kl.

I found this when I looked into the code after Raja Mani submitted
a patch fixing the n_match_sets calculation to disregard the RSSI,
but that patch didn't address the semantic issue.

Reported-by: Raja Mani <rmani@qti.qualcomm.com>
Acked-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
e487eaeb076a44c69dc61348cbc903151bb8fcbd 21-Nov-2013 Simon Wunderlich <sw@simonwunderlich.de> cfg80211/mac80211/ath6kl: acquire wdev lock outside ch_switch_notify

The channel switch notification should be sent under the
wdev/sdata-lock, preferably in the same moment as the channel change
happens, to avoid races by other callers (e.g. start/stop_ap).
This also adds the previously missing sdata_lock protection in
csa_finalize_work.

Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
b176e629402f41f2b984d3aa842ddae23ed5562e 18-Nov-2013 Andrei Otcheretianski <andrei.otcheretianski@intel.com> cfg80211: aggregate mgmt_tx parameters into a struct

Change cfg80211 and mac80211 to use cfg80211_mgmt_tx_params
struct to aggregate parameters for mgmt_tx functions.
This makes the functions' signatures less clumsy and allows
less painful parameters extension.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
[fix all other drivers]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
bfd634d01e02071404e3e36e3946728009ed023f 11-Jun-2013 Antonio Quartulli <antonio@open-mesh.com> ath6kl: make mgmt_tx accept a NULL channel

cfg80211 passes a NULL channel to mgmt_tx if the frame has
to be sent on the one currently in use by the device.
Make the implementation of mgmt_tx correctly handle this
case

Cc: Nicolas Cavallari <Nicolas.Cavallari@lri.fr>
Acked-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
964dc9e2c3aaccacacd40640964a58544fb5769a 03-Jun-2013 Johannes Berg <johannes.berg@intel.com> cfg80211: take WoWLAN support information out of wiphy struct

There's no need to take up the space for devices that don't
support WoWLAN, and most drivers can even make the support
data static const (except where it's modified at runtime.)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
77ee7c891a04c3d254711ddf1bde5d7381339fb3 15-Feb-2013 Johannes Berg <johannes.berg@intel.com> cfg80211: comprehensively check station changes

The station change API isn't being checked properly before
drivers are called, and as a result it is difficult to see
what should be allowed and what not.

In order to comprehensively check the API parameters parse
everything first, and then have the driver call a function
(cfg80211_check_station_change()) with the additionally
information about the kind of station that is being changed;
this allows the function to make better decisions than the
old code could.

While at it, also add a few checks, particularly in mesh
and clarify the TDLS station lifetime in documentation.

To be able to reduce a few checks, ignore any flag set bits
when the mask isn't set, they shouldn't be applied then.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
4ce720b6f0302aae5c47fa4a6493fb86ec730c96 22-Feb-2013 Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> ath6kl: Remove NETDEV_REGISTERED flag

Currently its no where used.

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
bc52aab380c7beb49d20ea6e77e8239b9ffe74a9 22-Feb-2013 Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> ath6kl: Protect ath6kl_cfg80211_vif_cleanup using rtnl_locks

ath6kl_cfg80211_vif_cleanup calls 'unregister_netdevice' which
inturn calls 'unregister_netdevice_queue' and it requires holding
rtnl_lock semaphore protection.

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
0db96de6258ca3851c95c7c4349b7188ac524891 22-Feb-2013 Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> ath6kl: Cosmetic change in checking for free vif slot

A minor optimization is done in finding the free slot
available for the new virtual interface in the firmware.

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8457703f1e86aaf0f134402dd1e09e1f13e65222 05-Feb-2013 Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> ath6kl: provide 64-bit per-station byte counters

Internally, 64-bit byte counters maintained for per-station
statistics. Tell to the netlink that full 64-bit value provided

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
5b112d3d098c97b867cc580f590395cd1e72f18c 01-Feb-2013 Johannes Berg <johannes.berg@intel.com> cfg80211: pass wiphy to cfg80211_ref_bss/put_bss

This prepares for using the spinlock instead of krefs
which is needed in the next patch to track the refs
of combined BSSes correctly.

Acked-by: Bing Zhao <bzhao@marvell.com> [mwifiex]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
0c0280bd0ba410326eecdaeb1b936696eda6381d 11-Jan-2013 Luis R. Rodriguez <mcgrof@do-not-panic.com> wireless: make the reg_notifier() void

The reg_notifier()'s return value need not be checked
as it is only supposed to do post regulatory work and
that should never fail. Any behaviour to regulatory
that needs to be considered before cfg80211 does work
to a driver should be specified by using the already
existing flags, the reg_notifier() just does post
processing should it find it needs to.

Also make lbs_reg_notifier static.

Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
[move lbs_reg_notifier to not break compile]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
6f7c1adb7529935df6e288a1436003c1f6dc0653 16-Nov-2012 Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> ath6kl: minor optimization using if, else if

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
355b3a982095c8647cce13dd43ebc4bc4299f31a 16-Nov-2012 Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> ath6kl: Move and rename ath6kl_cleanup_vif function

Rename ath6kl_cleanup_vif function as 'ath6kl_cfg80211_vif_stop'
which is the more appropriate name considering the functionality
of the module and vif specific cleanup is actually done by
ath6kl_cfg80211_vif_cleanup. Also move it to cfg80211.c.
Also make ath6kl_cfg80211_sta_bmiss_enhance as static function.
This addresses a FIXME/TODO.

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
eb922e4b41fd315f4ef95fef0ca1051b61cd5538 16-Nov-2012 Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> ath6kl: Parse beacon interval from userspace

Parse beacon interval from userspace to
firmware. Incase the firmware does not
supports it, just print a warning message
and continue with AP settings.

Cc: Sumathi Mandipati <sumathi@qca.qualcomm.com>
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8aa659d2c9ad2df8873c5ba1d7f030d6acf39c4c 16-Nov-2012 Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> ath6kl: trivial cleanup on interface type selection

a minor cleanup in assigning the driver specific network type
based on interface type.

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
3d9d1d6656a73ea8407734cfb00b81d14ef62d4b 08-Nov-2012 Johannes Berg <johannes.berg@intel.com> nl80211/cfg80211: support VHT channel configuration

Change nl80211 to support specifying a VHT (or HT)
using the control channel frequency (as before) and
new attributes for the channel width and first and
second center frequency. The old channel type is of
course still supported for HT.

Also change the cfg80211 channel definition struct
to support these by adding the relevant fields to
it (and removing the _type field.)

This also adds new helper functions:
- cfg80211_chandef_create to create a channel def
struct given the control channel and channel type,
- cfg80211_chandef_identical to check if two channel
definitions are identical
- cfg80211_chandef_compatible to check if the given
channel definitions are compatible, and return the
wider of the two

This isn't entirely complete, but that doesn't matter
until we have a driver using it. In particular, it's
missing
- regulatory checks on the usable bandwidth (if that
even makes sense)
- regulatory TX power (database can't deal with it)
- a proper channel compatibility calculation for the
new channel types

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
683b6d3b31a51956ea540df00abb0b78894924c1 08-Nov-2012 Johannes Berg <johannes.berg@intel.com> cfg80211: pass a channel definition struct

Instead of passing a channel pointer and channel type
to all functions and driver methods, pass a new channel
definition struct. Right now, this struct contains just
the control channel and channel type, but for VHT this
will change.

Also, add a small inline cfg80211_get_chandef_type() so
that drivers don't need to use the _type field of the
new structure all the time, which will change.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
42d97a599eb6b2aab3a401b3e5799a399d6c7652 08-Nov-2012 Johannes Berg <johannes.berg@intel.com> cfg80211: remove remain-on-channel channel type

As mwifiex (and mac80211 in the software case) are the
only drivers actually implementing remain-on-channel
with channel type, userspace can't be relying on it.
This is the case, as it's used only for P2P operations
right now.

Rather than adding a flag to tell userspace whether or
not it can actually rely on it, simplify all the code
by removing the ability to use different channel types.
Leave only the validation of the attribute, so that if
we extend it again later (with the needed capability
flag), it can't break userspace sending invalid data.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
f0ed67ec607f6c4e99aa5bb0bd5ac184bcaa5908 12-Oct-2012 Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> ath6kl: Fix a mismatch in power management debug message

Power Save Enabled : REC_POWER - conserve power
without sacrificing performance.
Power Save Disabled : MAX_PERF_POWER - maximum
performance at the expense of power.
Hence fix the debug message.

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
ff7e68670c49b6404acc4fce6ca90d6c89ef0efe 15-Nov-2012 Kalle Valo <kvalo@qca.qualcomm.com> ath6kl: support NL80211_USER_REG_HINT_CELL_BASE events

As ath6kl firmware can't do intersections the driver should only listen
to regdom changes from cellular base stations, all other requests need to
be refused.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
c8442118ad9cd05cfe3b993f058e70ab25b1009a 24-Oct-2012 Johannes Berg <johannes.berg@intel.com> cfg80211: allow per interface TX power setting

The TX power setting is currently per wiphy (hardware
device) but with multi-channel capabilities that doesn't
make much sense any more.

Allow drivers (and mac80211) to advertise support for
per-interface TX power configuration. When the TX power
is configured for the wiphy, the wdev will be NULL and
the driver can still handle that, but when a wdev is
given the TX power can be set only for that wdev now.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7ac25eacc6766617edaac69d928f431a9983ccf2 27-Sep-2012 Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> ath6kl: Fix inactivity timeout for AR6004

Currently AR6004 handles the inactivity timeout resolution
in minutes rather than seconds. So parse the inactivity timeout
to the firmware in minutes. For now we will cleanup the
inactive station entries to the nearest converted minutes
(ex: an inactive time of 70 seconds would take atleast 2 - 3 minutes)
Tested with surprise removal of client cards/host shutdown.

Cc: Manikandan Radhakrishnan <mradhakr@qca.qualcomm.com>
Reported-by: Leela Kella <leela@qca.qualcomm.com>
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
c0b34e2b41cc29c15b4cf247727efdab6a864c1b 27-Sep-2012 Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> ath6kl: Rename ATH6KL_HW_FLAG_64BIT_RATES

Rename ATH6KL_HW_FLAG_64BIT_RATES to ATH6KL_HW_64BIT_RATES.
This seemed to be necessary to add/use new hardware flags
without exceeding 80 lines. We shall be adding new hw flags
dropping the FLAG term.

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
58109df67aa073756eb5a2dc2ae068bc1bbcc125 10-Sep-2012 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> ath6kl: Fix reconnection issue after recovery

Disallowing any wmi commands while re-initializing the
firmware results in connection failures after recovery
is done in open/WEP mode. To fix this, clear WMI_READY,
to make sure no wmi command is tried while fw is down.
Remove ATH6KL_STATE_RECOVERY state check in ath6kl_control_tx()
so that any configuration during fw init time will go through
using wmi commands.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9233299394de1c571e52ab2dbe1995c1fbdc8fda 29-Aug-2012 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> ath6kl: Add support to detect fw error through heart beat

This patch adds support to detect fw error condition by sending
periodic message (heart beat challenge) to firmware. Upon reception
of the message, fw would send a response event to driver. When
there are no reponses from fw for about 5 cmd driver would
trigger the recovery logic assuming that fw has gone into an
error state.

Capable fw will advertise this capability through
ATH6KL_FW_CAPABILITY_HEART_BEAT_POLL bit. This feature
is disabled by default, can be enabled through a modparam
(heart_beat_poll). This modparam also confiures the polling
interval in msecs.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
84caf8005b09e0a4a57fce44119489d1b0bbbe94 29-Aug-2012 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> ath6kl: Recover from fw crash

Re-initialize the target when fw crash is reported.
This would make the device functional again after
target crash. During the target re-initialization
it is made sure that target is not bugged with data/cmd
request, ar->state ATH6KL_STATE_RECOVERY is used
for this purpose.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
3814264481fecba02ba60f2e6c6baea2d43b757b 24-Aug-2012 Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> ath6kl: trivial cleanup on interface type selection

a minor cleanup in assigning the driver specific network type
based on interface type.

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2c07cf4461c958e52efd9cfca1df67165426ba20 20-Aug-2012 Thomas Pedersen <c_tpeder@qca.qualcomm.com> ath6kl: consolidate WoW pattern length

Since WOW_MASK_SIZE and WOW_PATTERN_SIZE have the same value, are
logically equivalent, and part of the WMI API so therefore unlikely to
change, consolidate these into WOW_PATTERN_SIZE.

Reported-by Kalle Valo <kvalo@qualcomm.com>
Signed-off-by: Thomas Pedersen <c_tpeder@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
b1f47e3a962b8b69612d1eecf4d50082b402fcc5 16-Aug-2012 Thomas Pedersen <c_tpeder@qca.qualcomm.com> ath6kl: rework scheduled scan

This patch reflects changes in the firmware scheduled scan
implementation to behave better in cases with multiple concurrent vifs.
Major changes:

- scheduled scan filters and state are now programmed per-vif.
- decouple scheduled scan from host sleep.

To maintain graceful failure with old firmwares, a new firmware
capability bit is introduced: ATH6KL_FW_CAPABILITY_SCHED_SCAN_V2.
ath6kl simply won't advertise scheduled scan to cfg80211 if the
SCHED_SCAN_V2 is not supported.

Since firmwares from here on out won't support the previous implicit API
for scheduled scan (set WoW filters and host sleep), bump the firmware
API to protect old drivers.

Unfortunately, due to firmware RAM constraints ath6kl still cannot
expect a scan complete event at the end of a scheduled scan results
cycle, so the sched_scan_timer is retained.

Signed-off-by: Thomas Pedersen <c_tpeder@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
f21243a82253e34f64187aeb3d7f93fb7cb92536 28-Jul-2012 Thomas Pedersen <c_tpeder@qca.qualcomm.com> ath6kl: reconfigure RSN capabilities when restarting AP

If the firmware decides to initiate a channel switch on an AP vif
running an RSN BSS, reconfigure the saved RSN IE capabilities as well.

Fixes a bug where the beacon and 4-way handshake would have a capability
mismatch after a channel switch, since the firmware apparently clears
these on an AP disconnect.

Signed-off-by: Thomas Pedersen <c_tpeder@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
fd4377b6bacc0f04bb1898f3ccab9510172a7561 10-Aug-2012 Thomas Pedersen <c_tpeder@qca.qualcomm.com> ath6kl: configure wow filters per-vif

Only WoW filters for the first vif were being set, causing failures to
wake up on any concurrent connected vifs. Handle all per-vif suspend
and resume tasks.

Since cfg80211 issues user wow filters on a per-wiphy basis, set any
custom filters on all connected vifs.

Starting WoW in firmware and setting host sleep mode is still handled on
a global per-phy level. The first vif is always used for bookkeeping
regardless of whether it is connected or not.

WoW is cancelled if no connected vifs are found.

No firmware capability bits or API bump is needed for this patch, as
setting filters for vifs with index > 0 will simply overwrite the index
0 filters in the current implementation. While not correct, this is
identical to the existing behavior.

kvalo: fix a checkpatch warning in ath6kl_wow_resume()

Signed-off-by: Thomas Pedersen <c_tpeder@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
84841ba29b1f55fb09703408477f097c7f8952f8 19-Jul-2012 Kalle Valo <kvalo@qca.qualcomm.com> ath6kl: add support for changing contry code

To make it possible to change the country code from user space via nl80211
add handler for reg_notifier. The feature is only enabled when built
time option CONFIG_ATH6KL_REGDOMAIN is enabled, which again depends on
CFG80211_CERTIFICATION_ONUS for certication purposes.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
11f0bfcf73f4a90c8c0e0b244a272379b376adb1 19-Jul-2012 Kalle Valo <kvalo@qca.qualcomm.com> ath6kl: refactor wmi scan command

ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX was checked in cfg80211.c which is
a bit awkward when adding more callsites to the scan functions. Refactor
the code to wmi.c so that it's transparent to the callers.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
279b2862ee6ba9ee950c02044142f8ea137c302e 18-Jul-2012 Thomas Pedersen <c_tpeder@qca.qualcomm.com> ath6kl: support TX error rate notification

The ath6kl firmware can monitor a connection and report when a certain
TX failure threshold is crossed. Support this configuration and event
reporting on compatible firmwares.

Signed-off-by: Thomas Pedersen <c_tpeder@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
c95dcb595dde97510dd4bc98c3112fe4d5dbd71f 10-Jul-2012 Aarthi Thiruvengadam <athiruve@qca.qualcomm.com> ath6kl: use custom MAC address for newly created interfaces

Firmware and driver generate MAC addresses for the second and third interfaces.
In addition to the existing algorithm, flip bit 7 of 5th octet. Since both
firmware and driver individually generate the MAC addresses, introduce a new
firmware capability bit to keep them compatible.

Signed-off-by: Aarthi Thiruvengadam <athiruve@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
85b20fc2420c4d20729f3bbdbfe5962dcc58c3b0 21-Jun-2012 Thomas Pedersen <c_tpeder@qca.qualcomm.com> ath6kl: support rssi threshold for sched scan

The ath6kl firmware can filter scan results based on rssi. This is
useful to limit hosts wakeups on scheduled scans.

Signed-off-by: Thomas Pedersen <c_tpeder@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
04b2312a683537eec3dbac013920b0e3cfc06123 12-Oct-2012 Arend van Spriel <arend@broadcom.com> wireless: drivers: make use of WLAN_EID_VENDOR_SPECIFIC

The include file linux/ieee80211.h contains three definitions for
the same thing in enum ieee80211_eid due to historic changes:

/* Information Element IDs */
enum ieee80211_eid {
:
WLAN_EID_WPA = 221,
WLAN_EID_GENERIC = 221,
WLAN_EID_VENDOR_SPECIFIC = 221,
:
};

The standard refers to this as "vendor specific" element so the
other two definitions are better not used. This patch changes the
wireless drivers to use one definition, ie. WLAN_EID_VENDOR_SPECIFIC.

Cc: Jouni Malinen <j@w1.fi>
Cc: Dan Williams <dcbw@redhat.com>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Acked-by: Kalle Valo <kvalo@qca.qualcomm.com> [ath6kl]
Acked-by: Bing Zhao <bzhao@marvell.com> [mwifiex]
Acked-by: Stanislav Yakovlev <stas.yakovlev@gmail.com> [ipw2x00]
Signed-off-by: Arend van Spriel <arend@broadcom.com>
[change libipw as well]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
b292219fa5061e2657ecf518b48426913d0ddae6 12-Oct-2012 Johannes Berg <johannes.berg@intel.com> wireless: use OR operation to set wiphy features

The next patch will introduce a flag that is set
by default in cfg80211 so drivers and mac80211
need to use |= to set features they have so that
they don't clear the already-set feature.

We could set the flag in wiphy_register() instead
of wiphy_new() to avoid this patch, but then the
drivers couldn't *unset* flags they don't want to
use even though the implementation is generic.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
552bff0c2fec8953ba3793d75ee335032cc0b47c 19-Sep-2012 Johannes Berg <johannes.berg@intel.com> cfg80211: constify name parameter to add_virtual_intf

The name can't be modified by the driver,
make it const.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
fd0142844efa85d89017c89227a0f03de1eee327 18-Jun-2012 Johannes Berg <johannes.berg@intel.com> nl80211: move scan API to wdev

The new P2P Device will have to be able to scan for
P2P search, so move scanning to use struct wireless_dev
instead of struct net_device.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
84efbb84cf76238faf26facf481c8675859bfaeb 16-Jun-2012 Johannes Berg <johannes.berg@intel.com> cfg80211: use wireless_dev for interface management

In order to be able to create P2P Device wdevs, move
the virtual interface management over to wireless_dev
structures.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
71bbc9943883cffaf5d7a7728a4e4c50b3ac44d3 15-Jun-2012 Johannes Berg <johannes.berg@intel.com> cfg80211: use wdev in mgmt-tx/ROC APIs

The management frame and remain-on-channel APIs will be
needed in the P2P device abstraction, so move them over
to the new wdev-based APIs. Userspace can still use both
the interface index and wdev identifier for them so it's
backward compatible, but for the P2P Device wdev it will
be able to use the wdev identifier only.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
dfb89c56add259b72a9c68d6b2846c1cd8c4e4b6 27-Jun-2012 Johannes Berg <johannes.berg@intel.com> cfg80211: don't allow WoWLAN support without CONFIG_PM

When CONFIG_PM is disabled, no device can possibly
support WoWLAN since it can't go to sleep to start
with. Due to this, mac80211 had even rejected the
hardware registration. By making all the code and
data for WoWLAN depend on CONFIG_PM we can promote
this runtime error to a compile-time error.

Add #ifdef around all WoWLAN code to remove it in
systems that don't need it as they never suspend.

Cc: Kalle Valo <kvalo@qca.qualcomm.com>
Acked-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
d154f32ebe3ffe9dea6ed0a91767883b1e7a6bc0 30-May-2012 Etay Luz <eluz@qca.qualcomm.com> ath6kl: support changing dtim period on AP mode

This patch adds support for dtim_period configuration in beacon.

kvalo: add a comment about ignoring the error, use vif_idx,
add \n to the warning message

Signed-off-by: Etay Luz <eluz@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
f1ff32e8a8672d4d59283fb7f61f1431c2b9e434 30-May-2012 Joe Perches <joe@perches.com> ath6kl: Add missing newline terminations

Messages without newlines can be interleaved.
Avoid this by adding terminations.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
aa430da41019c1694f6a8e3b8bef1d12ed52b0ad 16-May-2012 Johannes Berg <johannes.berg@intel.com> cfg80211: provide channel to start_ap function

Instead of setting the channel first and then
starting the AP, let cfg80211 store the channel
and provide it as one of the AP settings.

This means that now you have to set the channel
before you can start an AP interface, but since
hostapd/wpa_supplicant always do that we're OK
with this change.

Alternatively, it's now possible to give the
channel as an attribute to the start-ap nl80211
command, overriding any preset channel.

Cc: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
67b3f1299ab73259aed5871488188a9c59025a54 29-May-2012 Kiran Reddy <c_lreddy@qca.qualcomm.com> ath6kl: separate ht cap for each band

In virtual interface structure, for each band separate ht cap
is needed. so that one can disable or enable ht capability band
wise.
This will fix the following issue:

1) Disable 11n from supplicant and start a P2P GO.
2) In beacon frames no HT-CAP IE is seen which is expected.
3) Now remove the P2P GO and kill the supplicant.
4) Beacon stops
5) Now using iw associate to an external AP in 5 GHZ
6) In 5 GHZ no HT IE going in assoc request but
when associated in 2.4 GHZ can see HT IES over the air
in assoc request.

In the code for del_beacon in cfg80211.c,set_ht_cap is being
called first for 2.4 GHZ and then for 5 GHZ. When called
for the first time for 2.4 GHZ the enable flag will be set to true
and so when called for the second time for 5 GHZ it just returns
after checking the flag.

Also using this one can have different HT capabilities
per band (for example one may decide not to use 20/40 in 2.4 GHZ
but use it in 5 GHZ). So maintaining a single context is not ok.
it is true for even the enable/disable flag and other HT
capabilities as well

Signed-off-by: Kiran Reddy <c_lreddy@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
06e360ace9434bf37164fd87941b797cc0f3cb7e 22-May-2012 Bala Shanmugam <bkamatch@qca.qualcomm.com> ath6kl: Add support for setting tx rateset.

Tx legacy and mcs rateset can configured using iw for
2.4 and 5 bands. Add support for the same in driver.

kvalo: add an enum for the hw flags and rename the flag accordingly,
rename ath6kl_cfg80211_set_bitrate_mask() to a shorter version to make
it easier to indent

Signed-off-by: Bala Shanmugam <bkamatch@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
33a6664a6e4b45814ef6e3129842f3fd7e5d1117 16-May-2012 Thomas Pedersen <c_tpeder@qca.qualcomm.com> ath6kl: issue wmi disconnect after notifying cfg80211

ath6kl would issue a wmi disconnect command in response to a remote
disconnect and return early without notifying cfg80211, only sending a
cfg80211_disconnected (with reason code always 3) in response to the
second disconnect firmware event.

Pass the right reason code to cfg80211 on the first disconnect instead.

This fixes at least one bug where a p2p client would stop trying to
connect after receiving a stale RSN deauth which was reported to
cfg80211 as GO leaving BSS.

Signed-off-by: Thomas Pedersen <c_tpeder@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
dd45b7598f1c52933f276ba7ce175fa1305b8ba0 16-May-2012 Naveen Singh <navesing@qca.qualcomm.com> ath6kl: Include match ssid list in scheduled scan

Scheduled scan implementation was only taking probed list into
consideration. The matched list was dropped. This would cause
FW not to report the AP as the list never had that AP's SSID
populated. This was causing long connection time when supplicant
would just issue a wild card SSID in probed list. As a part of
this implementation, ath6kl driver would create a complete list
by taking both probed and matched list and pass it to FW. FW would
probe for the SSID that it needs to and would match against the
relevant SSIDS that is been configured.

kvalo: whitespace changes, less indentation in the for loop, use ++

Signed-off-by: Naveen Singh <navesing@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
c422d52d0450988ce9a1ffdddb78807538396749 15-May-2012 Thomas Pedersen <c_tpeder@qca.qualcomm.com> ath6kl: enable enhanced bmiss detection

Enable enhanced bmiss detection if the firmware supports it. This
feature is only enabled on some firmwares since it comes with a power
cost.

Also add a few missing command ids to keep the enums straight.

kvalo: fix a compiler with ath6kl_err(), add few empty lines

Signed-off-by: Thomas Pedersen <c_tpeder@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
6821d4f08dcdc7d8c21a3280f57f53a080f19840 11-May-2012 Naveen Gangadharan <ngangadh@qca.qualcomm.com> ath6kl: Add wow multicast firmware capability support

Infrastructure to enable Multicast WOW support based on
firmware capability added to the driver.This enables
different customers or chips to control this feature based
on firmware capability.

kvalo: Firmware capability infrastructure for multicast wow feature,
indetation fixes.

Signed-off-by: Naveen Gangadharan <ngangadh@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8ab5415d6c701a59dd6fc2bc93cf476ecc03ada5 09-May-2012 Jouni Malinen <jouni@qca.qualcomm.com> ath6kl: Use correct max-scan-SSIDs limit

The currently used firmware images support 16 SSIDs in the scan
request (indexes 0..15), so update the host driver to use the same
limit to allow some more SSIDs to be scanned per request. In addition,
change the max-index to max-SSIDs to make it easier to understand the
implementation and fix couple of off-by-one checks that could limit
the maximum number of entries too strictly.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
954e6ce54c0a251758a58a58d75ec63722ff036d 24-Apr-2012 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> ath6kl: Fix bss filter setting while scanning

bss filter is configured to allow the frames from all the bss other
than the currenly connected one, this is done when a scan is requested
in connected state. There is no reason to filter out the currently
connected bss, configure the filter to allow all the bss. This would
fix the reporting of stale rssi of the current bss while scanning.

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>
7fd1ce7eafb8a68d75363e7500433b0ee4392843 24-Apr-2012 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> ath6kl: Don't advertise HT capability for incapable firmware

With firmwares which do not support rsn capability override
(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE) from host would
cause 4-way handshake failure when HT cap is advertised.
To fix this, do not advertise HT cap with cfg80211 for
those fw.

kvalo: fix a checkpatch warning

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
6251d8012dbc49869f2453942089c4df82de0c80 20-Apr-2012 Naveen Gangadharan <ngangadh@qca.qualcomm.com> ath6kl: Multicast filter support in wow suspend and non-suspend

This patch enables all multicast packets in non suspend mode
and enable multicast filtering in wow suspend mode. This also
fixes a bug in multicast where the driver assumed disable
multicast-all command disabled/filtered all multicast
packets, which was wrong assumption, because firmware will
apply the programmed filter.

Multicast requirements
- Enable forward all multicast packets(no filtering) in
non suspend mode.
- Enable multicast filtering in wow suspend mode for both
AP and CLIENT.

kvalo: fix a checkpatch warning and drop unrelated newline removal

Signed-off-by: Naveen Gangadharan <ngangadh@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
77ed4e45833fc12f3178a65853687b60e952eddd 20-Apr-2012 Thomas Pedersen <c_tpeder@qca.qualcomm.com> ath6kl: disallow WoW with multiple vifs

The ath6kl fw does not have enough memory to support the WoW filters of
more than one vif. Disallow WoW suspend if this is the case.

Signed-off-by: Thomas Pedersen <c_tpeder@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
37a2f950acc08cce6532138625de0b7caed21476 20-Apr-2012 Thomas Pedersen <c_tpeder@qca.qualcomm.com> ath6kl: only restore supported HT caps

Now that we know the supported PHY capabilities, only restore supported
bands / HT capabilities in firmware when stopping AP.

Signed-off-by: Thomas Pedersen <c_tpeder@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
d92917e4db2a9d6af9e362bda5151cadec9e1eeb 20-Apr-2012 Thomas Pedersen <c_tpeder@qca.qualcomm.com> ath6kl: support fw reporting phy capabilities

Currently the supported bands are just hard coded in the driver.
However, the ath6kl FW will include its 11n and band capabilites in a
WMI_READY event. Handle this and report capabilites to cfg80211
accordingly.

Signed-off-by: Thomas Pedersen <c_tpeder@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
3b8ffc6a22ba05d5ce12f375b060c9e62ed8f016 16-Apr-2012 Jouni Malinen <jouni@qca.qualcomm.com> ath6kl: Configure probed SSID list consistently

Set max_scan_ssids and max_sched_scan_ssids to same value. These use the
same probed SSID list, so there is no point in using different maximum
number of SSIDs.

Clear probed SSID entries that are not used. This was already done for
sched_scan, but not for scan. Be consistent and clear the table for both
cases to avoid leaving bogus entries.

In addition, share the same function for setting the probed SSIDs for
scan and sched_scan paths. This fixes setting of wildcard SSID flag
(ANY_SSID_FLAG) and changes the scan path to use probed SSID index
consistently (i.e., start with 0 similarly to sched_scan; firmware
will handle the needed internal mapping).

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
a432e7cc4f3e59f2fd75bb2fd66580f16e8a7447 16-Apr-2012 Jouni Malinen <jouni@qca.qualcomm.com> ath6kl: Remove incorrect Probe Response offload support for Interworking

ath6kl does not support Probe Response offloading for Interworking (IEEE
802.11u), so remove the incorrectly added capability flag for it.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
d472b5e43dadf7d819ec85464f2c93e696d8f109 16-Apr-2012 Subramania Sharma Thandaveswaran <sharmat@qca.qualcomm.com> 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>
eb38987e899369d936c55f93f631062c417435d2 16-Apr-2012 Raja Mani <rmani@qca.qualcomm.com> 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>
48f27587aad1e1630104672b9e20d9d721ea8718 13-Apr-2012 Ming Jiang <mjiang@qca.qualcomm.com> 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>
cdeb860252e66bdaf1ab70420274df879f243d3d 12-Apr-2012 Kalle Valo <kvalo@qca.qualcomm.com> 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>
9e8b16dbd0f642e14adccf52af46853418cab331 10-Apr-2012 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
798985c688722479191f6d6f4e5ab1a473904f0a 10-Apr-2012 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
c4f7863eae6f580a0373cbd8dc2731d082570e69 06-Apr-2012 Thomas Pedersen <c_tpeder@qca.qualcomm.com> 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>
516304b0f45614fb8967dc86ff681499204cdbb1 19-Mar-2012 Joe Perches <joe@perches.com> 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>
d97c121bb23d32ef631c553d2656f8ccf8349507 09-Apr-2012 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
df90b36940019a879d08bc5e8a20daa0c9fe0122 09-Apr-2012 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
bed56e313ada1d25d16e4101677c8f75eda78c60 09-Apr-2012 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
1e8d13b0aca8414a1ab581e24ae1851b9820a3b1 06-Apr-2012 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
3d79499c1c9cbdcb9ccc96e416c9216763e153db 28-Mar-2012 Vivek Natarajan <nataraja@qca.qualcomm.com> 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>
f599359cb97425b034b41e8d4a1a86eaa151972c 26-Mar-2012 Bala Shanmugam <bkamatch@qca.qualcomm.com> 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>
5b35dff0bbdcddb537d4c83097b39343a8f9300f 28-Mar-2012 Raja Mani <rmani@qca.qualcomm.com> 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>
03bdeb0d545340f7c2768e11c294d067e76de8c9 21-Mar-2012 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
40abc2defbca6a6d7fde49082586430350d0a535 21-Mar-2012 Raja Mani <rmani@qca.qualcomm.com> 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>
055bde493fc9a41b6b3e45381b454c18e2045d5b 21-Mar-2012 Raja Mani <rmani@qca.qualcomm.com> 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>
b4d13d3b70b085ef9b8e0bf7132d502d77d9ffc6 21-Mar-2012 Kalle Valo <kvalo@qca.qualcomm.com> 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>
c86e4f44f1d0d070f0b7b7750a70eb5d81ceaeaa 15-Mar-2012 Aarthi Thiruvengadam <athiruve@qca.qualcomm.com> 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>
b5283871ceced6e50728c51e4de811d1deadc962 12-Mar-2012 Kalle Valo <kvalo@qca.qualcomm.com> 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>
17a7b16df4ba8e71e149fcf31e0b639ff45ddf84 08-Mar-2012 Aarthi Thiruvengadam <aarthi.thiruvengadam@qca.qualcomm.com> 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>
8c9bb054f866cefd54bf7d551bf69a1ab3ff2089 07-Mar-2012 Kalle Valo <kvalo@qca.qualcomm.com> 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>
d0d670abcf97d2e1a369449847d776ebbfba292d 07-Mar-2012 Kalle Valo <kvalo@qca.qualcomm.com> 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>
ddc3d77c80bbaae562a91d4e032b56b2e4570f90 07-Mar-2012 Kalle Valo <kvalo@qca.qualcomm.com> 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>
96f1fadc94bc8dcde814109439e416143eed50fa 07-Mar-2012 Kalle Valo <kvalo@qca.qualcomm.com> 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>
ce0dc0cfeac9fde9964fa4b07aecd7cc604060e0 20-Feb-2012 Raja Mani <rmani@qca.qualcomm.com> 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>
8f46fccd6cd0d7ba70ba1636e59e98ca17dd2239 20-Feb-2012 Raja Mani <rmani@qca.qualcomm.com> 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>
390a8c8fae2e7072579198414e631984a61c485e 07-Mar-2012 Raja Mani <rmani@qca.qualcomm.com> 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>
1e9a905d9afd289bf19f02092a56660c2bcc50db 06-Mar-2012 Raja Mani <rmani@qca.qualcomm.com> 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>
67cd22e48d4acd3ac8c0032b628537bb27e92a24 29-Feb-2012 Thomas Pedersen <c_tpeder@qca.qualcomm.com> 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>
080eec4fb478f10c6f171875634fc3174da1a1c3 28-Feb-2012 Aarthi Thiruvengadam <athiruve@qca.qualcomm.com> 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>
e5348a1e3341dca3e53a6db568c2d4d48929dd95 25-Feb-2012 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
f2afdac709546f03cbdb11dc58f2c8250678bc66 28-Feb-2012 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
faaf192908b163eaeddc69940e08f2f42d72ea5d 27-Feb-2012 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
13423c31195efb1a1ac319294f5a0148a13433e6 21-Feb-2012 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
cc4d623de46616825d9330467e0a7375835171be 14-Feb-2012 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
d0ff7383a3164adff7072719717d574436ec1677 09-Feb-2012 Naveen Gangadharan <ngangadh@qca.qualcomm.com> 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>
8860020e0be1f03d83dc9e9e93e18a4ddbe01038 13-Feb-2012 Johannes Berg <johannes.berg@intel.com> 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>
1b2df4073447234034e2329f0df584c6346a8ec3 06-Feb-2012 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
3c325fbd0cdb4f83b7761cd8ba7519d7a236de38 31-Jan-2012 Masanari Iida <standby24x7@gmail.com> 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>
3c411a434414f4320ce926bee3733e34ba0ea407 30-Jan-2012 Raja Mani <rmani@qca.qualcomm.com> 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>
081c7a84e969453716e2a7bd315417067c3643ad 30-Jan-2012 Raja Mani <rmani@qca.qualcomm.com> 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>
d91e8eee046e0d4ae7a8a585616b5ce800f54568 30-Jan-2012 Raja Mani <rmani@qca.qualcomm.com> 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>
1d2a4456de20db73362c86c88fe9c02169f29d0a 21-Jan-2012 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
7baef812eb5f02ccacf6fac3888c1cfa36293e91 21-Jan-2012 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
d6a434d60e064a5f2bef1c13ca5ed84bfa6b8b4f 17-Jan-2012 Kalle Valo <kvalo@qca.qualcomm.com> 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>
45eaa78f757b3b3992ca02c753764665e9fba0a4 17-Jan-2012 Kalle Valo <kvalo@qca.qualcomm.com> 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>
46d33a21cfa531f4271c3f0b7b87a295f30f9e6a 17-Jan-2012 Kalle Valo <kvalo@qca.qualcomm.com> 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>
c25889e8a6fdfc54618b192a80c94419ddb7949d 17-Jan-2012 Kalle Valo <kvalo@qca.qualcomm.com> 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>
c1762a3fe196483981f91b926f5f6ee18af757f2 12-Jan-2012 Thirumalai Pachamuthu <tpachamu@qca.qualcomm.com> 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>
8232736dabd2a0310f76944fa7af0542fe3ded4f 10-Jan-2012 Sujith Manoharan <c_manoha@qca.qualcomm.com> 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>
4a8ce2fd055f8c117fb6fa6da39af8f62cbffe4b 10-Jan-2012 Sujith Manoharan <c_manoha@qca.qualcomm.com> 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>
80abaf9b4c920cab044e185ed4327f801c1ff99d 03-Jan-2012 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
792ecb33080f4e315695e0fe21cf3a3c2a514dd0 29-Dec-2011 Vivek Natarajan <nataraja@qca.qualcomm.com> 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>
ba1f6fe393c329230d2589ea508cbf90ff3cc9ce 27-Dec-2011 Jouni Malinen <jouni@qca.qualcomm.com> 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>
33e5308d8a0fb857a57c38def36ccf7b14ebf1c1 27-Dec-2011 Jouni Malinen <jouni@qca.qualcomm.com> 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>
e68f67509d92114c55938898643600c23f88b4c1 21-Dec-2011 Sujith Manoharan <c_manoha@qca.qualcomm.com> 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>
c08631c6e43e7ce91bca6b2d3466bb22a85fe724 16-Dec-2011 Raja Mani <rmani@qca.qualcomm.com> 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>
6e786cb1e514dc87647beccaa96bd8a255d97a0c 15-Dec-2011 Jouni Malinen <jouni@qca.qualcomm.com> 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>
5e13fd354a39d637df9b25edcb2964edf4a7c534 13-Dec-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
3ca9d1fc9aa64077645a26c396de9399b49ea226 13-Dec-2011 Aarthi Thiruvengadam <athiruve@qca.qualcomm.com> 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>
10509f903ebb7d2a02571f30cb937dd923b023cf 13-Dec-2011 Kalle Valo <kvalo@qca.qualcomm.com> 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>
7125f01d98ed75028ead5b335ec32e6e501cd19b 13-Dec-2011 Kalle Valo <kvalo@qca.qualcomm.com> 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>
c97a31b002d34595f74d2cb0d8017c183e7157d4 13-Dec-2011 Kalle Valo <kvalo@qca.qualcomm.com> 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>
d6d5c06c3cf6b1b5b4ffaac8a05c0cea97f90857 25-Nov-2011 Kalle Valo <kvalo@qca.qualcomm.com> 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>
4703290af46c73094b5252f0cd643c64613c2cb2 08-Dec-2011 Jouni Malinen <jouni@qca.qualcomm.com> 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>
0bb4e30f13ce7c4e811ea5937f39d985f02a9aff 23-Nov-2011 Kalle Valo <kvalo@qca.qualcomm.com> 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>
b992a28557afdcabcee7d8af88471dddfe791c11 23-Nov-2011 Luis R. Rodriguez <mcgrof@qca.qualcomm.com> 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>
743b4518f9432e09ade6120ced414558969ba5fd 18-Nov-2011 Dan Carpenter <dan.carpenter@oracle.com> 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>
f143379dbf5e0709d6d39b50995ff6d697564834 18-Nov-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
774439ad88ecec928ab4a438946ee4985116c481 18-Nov-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
59500b4864aea3e946889308b36c877b31c0b04b 16-Nov-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
542c519a0eb94e5fece4c12b12ad9c84e8b66384 15-Nov-2011 Raja Mani <rmani@qca.qualcomm.com> 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>
71f96ee6c6fd50fefb3f5550f25380060a85eebf 14-Nov-2011 Kalle Valo <kvalo@qca.qualcomm.com> 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>
be5abaafad8090a5051355b1d224bfbae0951fc2 11-Nov-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
7cefa44f140bc88def4f68f38c76d37d5fd61630 11-Nov-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
4eab6f4f43032015131db97f089734633c1b3c1f 09-Nov-2011 Raja Mani <rmani@qca.qualcomm.com> 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>
b8214df1d963cad2aae1479b86452e205312004e 03-Nov-2011 Dai Shuibing <shuibing@qca.qualcomm.com> 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>
5e07021e434a64c454b0e9fb9f5aa763f131b22b 03-Nov-2011 Dai Shuibing <shuibing@qca.qualcomm.com> 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>
eae9e0661b6fcac9ee5b14644516799912de7549 07-Nov-2011 Raja Mani <rmani@qca.qualcomm.com> 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>
a918fb3cc6a58f918f36348c43c3170bb88bc599 07-Nov-2011 Raja Mani <rmani@qca.qualcomm.com> 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>
d7c44e0ba5003c22a9ff3545fc2f51eaca8a95b1 07-Nov-2011 Raja Mani <rmani@qca.qualcomm.com> 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>
524441e3a7cadf12acbb409ad733d783ba1da459 07-Nov-2011 Raja Mani <rmani@qca.qualcomm.com> 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>
0f60e9f4c239554ad75ab8e4d864030a7f0dd6f7 07-Nov-2011 Raja Mani <rmani@qca.qualcomm.com> 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>
6cb3c714e75c6e70fa1c379b7f3af2f143f31c70 07-Nov-2011 Raja Mani <rmani@qca.qualcomm.com> 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>
f3e61eceb20a993ea2b375e82503ab8a1efa31d9 02-Nov-2011 Jouni Malinen <jouni@qca.qualcomm.com> 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>
f4bb9a6fbc1f49058fc9eb6dcb4a3022d99013b4 02-Nov-2011 Jouni Malinen <jouni@qca.qualcomm.com> 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>
11f6e40d9f21767a9090e4e559d3c63edf25e6c0 01-Nov-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
b4b2a0b116d79510640622a5f28f219065e61b03 01-Nov-2011 Kalle Valo <kvalo@qca.qualcomm.com> 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>
76a9fbe27ec04420844ddf49b9e7a2f872222983 01-Nov-2011 Kalle Valo <kvalo@qca.qualcomm.com> 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>
52d81a6883fb36c4304fb5619bfa5f61eb7986ef 01-Nov-2011 Kalle Valo <kvalo@qca.qualcomm.com> 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>
1f40525512ba8c68902b3c2f5c09692364cc6b6a 01-Nov-2011 Kalle Valo <kvalo@qca.qualcomm.com> 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>
ec4b7f602d24839a85131dc5b498e69c84ee8373 01-Nov-2011 Kalle Valo <kvalo@qca.qualcomm.com> 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>
1c17d313891c1477f5aad8d2e1da473bf8b9499d 01-Nov-2011 Kalle Valo <kvalo@qca.qualcomm.com> 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>
cb93821a9eaf53fb60addd689d3fa9f106790be1 27-Oct-2011 Kalle Valo <kvalo@qca.qualcomm.com> 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>
1052261e4bba9879c1d7d519c8e8606c5d4264d5 27-Oct-2011 Jouni Malinen <jouni@qca.qualcomm.com> 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>
635412127e089cc401fdd793f4d3731450419231 25-Oct-2011 Aarthi Thiruvengadam <athiruve@qca.qualcomm.com> 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>
551959d84d22b891e93d54fe43a4c7181581e8c4 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
3226f68af4fe74932677db271b4ac4f26556954d 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
55055976fe15f450aded0a6f2ed2996411bd3e2e 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
2792972395356254252f12205915a32dce9f50e4 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
990bd9151927ad55c7e3da3b05cf13ecfe7a31bf 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
478ac0272154023abb813db7ae12dc380caeb68e 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
6db8fa53ad4fa6d4b390e9bdd68f1238a01070ee 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
e29f25f5cd23d705b3a186e53cfddd3663875c45 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
28ae58dd1f55f55dabf02fbc76a76f0809eee937 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
240d279940ef496e9456db2287b7989f6521e2e2 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
334234b51453fe5def250bd60ea63b1f04a8e0d2 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
b95907a744fb2afe282cebd9b58371533818fbae 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
cf5333d70f822d950f0c2f4bec7a8939871d9b6a 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
14ee6f6b7db968229edb7524588e71182c843080 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
de3ad7138c853fb3f5c239a40e0228bd94d583e7 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
2132c69cb9efaf2b7300f6da916ab5f96c9c95b7 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
6f2a73f9e5c7013e14cf898fead81a363cdf0548 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
f74bac54a507a1b71be352d422b25cb5fd38db54 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
8c8b65e3e3b81d28d185f0a8b6543e42b50a812d 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
f5938f249a08a4e6c9046fa095be00db664158cc 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
3450334f392bca1fccbf04a90020161ec4404a1e 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
59c98449b8af405aa6245ea9f640c5847f42d26e 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
108438bc6ad16b3962aa5009123cd810d1c1f643 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
8dafb70edc7151bdb319b6d22895d9886c7172eb 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
be98e3a48cb9b9e63da8537a378f656af2a9f2c6 25-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
837cb97e5b72fb315e46d137d514720c62f371bf 11-Oct-2011 Jouni Malinen <jouni@qca.qualcomm.com> 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>
6981ffdc2f5d59aac75c8446363c474e33f18b31 07-Oct-2011 Kevin Fang <kevin.fang@qca.qualcomm.com> 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>
aa6cffc1a275a9369ca83e13cebc4b09e4f23954 05-Oct-2011 Chilam Ng <chilamng@qca.qualcomm.com> 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>
f1f9217926b2180237fd38b3f7fc6e932bcb1827 01-Oct-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
e247bd9068e3e86c3571147c128883596ace9d05 04-Nov-2011 Johannes Berg <johannes.berg@intel.com> 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>
6eb07caf1ac5723720caea2ee93cd11b7058a0aa 16-Sep-2011 Paul Gortmaker <paul.gortmaker@windriver.com> 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>
5f68a2b0a890d086e40fc7b55f4a0c32c28bc0d2 11-Oct-2011 John W. Linville <linville@tuxdriver.com> 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>
9a7308341b71f3c5e88e6a30f9d6a1cfb3bc2b4f 27-Sep-2011 Kalle Valo <kvalo@qca.qualcomm.com> 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>
1de547d6dcc66f6d9d227de9f510acbbf88a654f 23-Sep-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
32c1087460626f9cfa2b397eafd247bf039bacac 19-Sep-2011 Jouni Malinen <jouni@qca.qualcomm.com> 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>
551185ca0a97a11917edc3ad8e11d68912795902 19-Sep-2011 Jouni Malinen <jouni@qca.qualcomm.com> 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>
457fb0415a887b6389854b850e9815cf0ec44178 19-Sep-2011 Jouni Malinen <jouni@qca.qualcomm.com> 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>
01cac476a4bb07b5b6f205b15809e0a845574653 19-Sep-2011 Jouni Malinen <jouni@qca.qualcomm.com> 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>
151411e88fe1d1a729a4f706a2aebef8bc000a69 15-Sep-2011 Jouni Malinen <jouni@qca.qualcomm.com> 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>
170826dd0d9fa71b648aa31ecb1e2973d777dbdb 10-Sep-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
ac59a2b285abbcec1ec487ef56dcc25c654853fb 10-Sep-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 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>
6bbc7c35ed0fb61c7739e91d5ee7016455770511 05-Sep-2011 Jouni Malinen <jouni@qca.qualcomm.com> 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>
6e4604c8b91743c5a797fc2674544618854ed0f2 05-Sep-2011 Jouni Malinen <jouni@qca.qualcomm.com> 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>
11869befc7285be712623536daa30791aec1682f 02-Sep-2011 Jouni Malinen <jouni@qca.qualcomm.com> 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>
003353b0d27489228eff79447d0731687cea0207 01-Sep-2011 Kalle Valo <kvalo@qca.qualcomm.com> 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>
1b1e6ee300b84eff3c7b0ee8de2396eb815f1b9d 30-Aug-2011 Jouni Malinen <jouni@qca.qualcomm.com> 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>
8bdfbf40721a4338eb4f6dec55b3205188c45973 30-Aug-2011 Jouni Malinen <jouni@qca.qualcomm.com> 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>
229ed6b55f3caa4f1a975fd297ec44c5cedf4ea0 30-Aug-2011 Edward Lu <elu@qca.qualcomm.com> 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>
38acde3c137919c1aeced3eab0f79bb416f5ad8a 30-Aug-2011 Edward Lu <elu@qca.qualcomm.com> ath6kl: Fix a typo in ath6k context

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>
6b5e5d257211ee3e3df780488e8d31ce2bd9940f 30-Aug-2011 Jouni Malinen <jouni@qca.qualcomm.com> ath6kl: Add support for new P2P iftypes in mode changes

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
f80574ae1538f6fb17aeedb005380fd6961e976e 30-Aug-2011 Jouni Malinen <jouni@qca.qualcomm.com> ath6kl: Advertise supported mgmt_stypes

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
ae32c30a6ec991088e5346036015be1a9f9cf14b 30-Aug-2011 Jouni Malinen <jouni@qca.qualcomm.com> ath6kl: Report received Probe Request frames to cfg80211

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
1276c9ef6db2bc856579bc7f02e4cc710b089f0d 30-Aug-2011 Edward Lu <elu@qca.qualcomm.com> ath6kl: Support channel set request for startscan command

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>
b84da8c738681b96e7691d985191ebf9ee4a21e8 30-Aug-2011 Jouni Malinen <jouni@qca.qualcomm.com> ath6kl: Use set_appie command to add Probe Request IEs

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8a6c8060c0b166ce5ce4a3563b511b1f641dbea8 30-Aug-2011 Jouni Malinen <jouni@qca.qualcomm.com> ath6kl: Implement mgmt_tx

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
63fa1e0ca7a2c1e0cbf5f39b866340127ddc1480 30-Aug-2011 Jouni Malinen <jouni@qca.qualcomm.com> ath6kl: Implement remain_on_channel and cancel_remain_on_channel

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
238751365a1c42b1d66beb03dd81ca5d0fd12833 30-Aug-2011 Jouni Malinen <jouni@qca.qualcomm.com> ath6kl: Use change_station() to authorize/unauthorize STAs

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9a5b13182cc10d693c55a5c02d753e54514b9bfc 30-Aug-2011 Jouni Malinen <jouni@qca.qualcomm.com> ath6kl: Delay initial group key setup in AP mode

The target is not ready to accept addkey commands until the connect
event has been delivered, so delay these operations for the initial GTK.
In addition, properly set interface connected and mark netdev ready when
the AP mode setup has been completed.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
6a7c9badab158086b6162c661a47c4f1a4a68e92 30-Aug-2011 Jouni Malinen <jouni@qca.qualcomm.com> ath6kl: Add functionality for starting AP mode

Use cfg80211 add/del_beacon callbacks for starting/stopping AP mode and
set_beacon to update AP configuration (mainly, to update Beacon and
Probe Response IEs).

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
abcb344b3b823c8c9eac6e13e45a53eaf1d5d00b 22-Jul-2011 Kalle Valo <kvalo@qca.qualcomm.com> ath6kl: implement suspend support

For now this is implemented so that if host supports power is kept in
the chip. If that's not supported, an error is returned and sdio stack
will remove the device during suspend.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
0e5cc8e606ed89a4a58260c88474c74348230bed 12-Aug-2011 Raja Mani <rmani@qca.qualcomm.com> ath6kl: Check sme state before delivering disconnect event to cfg80211

In some random cases, the firmware is sending two disconnect event to
the host. In the current model, both diconnect events are passed to
cfg80211 without checking local sme state machine, which is screwing
cfg80211 layer state.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
f91db9bbdae6c86f0178fa03937e39ef82932770 12-Aug-2011 Raja Mani <rmani@qca.qualcomm.com> ath6kl: Avoid finding bss presence in cfg80211 scan list

Connect event handler function is always reporting BSS info
to CFG80211 layer first and then followed by connect event is passed.

Before these steps, BSS presence is retrieved from CFG80211 layer,
but it is not used. Hence, removing that part.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
0ce77920adcb16d6449de9ca481a553ea6008c6d 10-Aug-2011 Jouni Malinen <jouni@qca.qualcomm.com> ath6kl: Use cfg80211_inform_bss instead of cfg80211_inform_bss_frame

There is no point in generating a bogus Beacon frame for
cfg80211_inform_bss_frame when cfg80211_inform_bss can be used
instead.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
9aa603578f401d94a9d4ddd8af2917f224756b3b 04-Aug-2011 Raja Mani <rmani@qca.qualcomm.com> ath6kl: Fix crash during the connection process

Sometimes, the network manager is failing to connect to the AP due
to the below kernel crash message. The reason behind this,
after issuing the connect command to the chip, the chip is sending
disconnect event and then immediately one connect event to the host
in some random cases.

The host driver resets all states (including cfg80211 state machine)
when it receives disconnect event from the chip. But, still the host
driver reports the next received connect event to cfg80211, at that time
cfg80211 SME state would have been in IDLE state, which was causing
the below kernel crash.

Now, host driver's sme state machine is checked every time before
delivering connect event to cfg80211

WARNING: at net/wireless/sme.c:517 cfg80211_connect_result+0x10d/0x120()
[..]
Call Trace:
[<c0145732>] warn_slowpath_common+0x72/0xa0
[<c05d676d>] ? cfg80211_connect_result+0x10d/0x120
[<c05d676d>] ? cfg80211_connect_result+0x10d/0x120
[<c0145782>] warn_slowpath_null+0x22/0x30
[<c05d676d>] cfg80211_connect_result+0x10d/0x120
[<f83ff497>] ath6kl_cfg80211_connect_event+0x427/0x4f0 [ath6kl]
[<c035d26a>] ? put_dec+0x2a/0xa0
[<c035d645>] ? number+0x365/0x380
[<c0154675>] ? mod_timer+0x135/0x260
[<c035e00e>] ? format_decode+0x2fe/0x370
[<c01263c8>] ? default_spin_lock_flags+0x8/0x10
[<c05fd91f>] ? _raw_spin_lock_irqsave+0x2f/0x50
[<c0146032>] ? console_unlock+0x172/0x1c0
[<f8402659>] ath6kl_connect_event+0x89/0x400 [ath6kl]
[<f840826e>] ath6kl_wmi_control_rx+0x98e/0x1d60 [ath6kl]
[<c01335b5>] ? __wake_up+0x45/0x60
[<f84053aa>] ath6kl_rx+0x56a/0x770 [ath6kl]
[<c04d0242>] ? mmc_release_host+0x22/0x40
[<c04d9329>] ? sdio_release_host+0x19/0x30
[<f840a27a>] ? ath6kl_sdio_read_write_sync+0x7a/0xc0 [ath6kl]
[<f83f82b1>] do_rx_completion+0x41/0x50 [ath6kl]
[<f83faa6a>] htc_rxmsg_pending_handler+0x6ba/0xbd0 [ath6kl]
[<f8404bb0>] ? ath6kl_tx_data_cleanup+0x30/0x30 [ath6kl]
[<f840a1c0>] ? ath6kl_sdio_irq_handler+0x30/0x70 [ath6kl]
[<f83f7cd5>] ath6kldev_intr_bh_handler+0x2a5/0x630 [ath6kl]
[<f840a1c0>] ath6kl_sdio_irq_handler+0x30/0x70 [ath6kl]
[<c04d97c7>] sdio_irq_thread+0xc7/0x2d0
[<c013aeb0>] ? default_wake_function+0x10/0x20
[<c012fc98>] ? __wake_up_common+0x48/0x70
[<c04d9700>] ? sdio_claim_irq+0x200/0x200
[<c0163854>] kthread+0x74/0x80
[<c01637e0>] ? kthread_worker_fn+0x160/0x160
[<c0604c06>] kernel_thread_helper+0x6/0x10

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
91db35dae52d2cd0b5be90e01cff343dc65b981d 21-Jul-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> ath6kl: Cleanup void * in ath6kl_cfg80211_scan_node()

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8a8bc5a440a0b42cc8fc0d5a60c041e7ab5d76d1 21-Jul-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> ath6kl: Use ath6kl_cfg80211_scan_node() directly instead of function pointer

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
77fccc78a0fac77ac71fe341243970cfcd9a8ad3 21-Jul-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> ath6kl: Remove ath6kl_wmi_iterate_nodes()

Use wlan_iterate_nodes() directly.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
39dd3fcba2fe57866fe0913486472ae22e342c0e 21-Jul-2011 Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> ath6kl: Pass only the needed scan_table to ath6kl_wmi_iterate_nodes()

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
6fd1eacec1b8cd081b9ae067f852cece3e886521 21-Jul-2011 Kalle Valo <kvalo@qca.qualcomm.com> ath6kl: fix crash when interface is closed but scan is ongoing

When ath6kl module was removed while a scan was ongoing the driver would
crash in ath6kl_cfg80211_scan_complete_event().

Fix the function not to iterate nodes when the scan is aborted. The nodes
are already freed when the module is being unloaded. This patch removes the
null check entirely as the wmi structure is not accessed anymore during
module unload.

Also fix a bug where the status was checked as a bitfield with '&' operator.
But it's not a bitfield, just a regular error code.

This is a port of my patch from ath6kl staging with the same title.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
cf104c2a207f550d9c3b8f8bcf73cb11765692f6 21-Jul-2011 Kalle Valo <kvalo@qca.qualcomm.com> ath6kl: fix atomicity in ath6kl_cfg80211_scan_node()

ath6kl_cfg80211_scan_node() was calling cfg80211_inform_bss_frame()
with CFP_KERNEL but the function is executed with a spin lock taken.
This is wrong and the function must use GFP_ATOMIC instead.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
b2c76bbe005cd23dfd80fe2140bd18daf4d3b16a 21-Jul-2011 Kalle Valo <kvalo@qca.qualcomm.com> ath6kl: don't force foreground scan when connected

In my setup data transfer stalls when there's data transmission during
scan. After some testing I found out that using background scan
when connected to makes the problem go away. This is more like
a workaround than a proper fix, but as the stall is so severe the
workaround is justified.

With a dual band card this increases scan time when connected from
1.9s to 4.4s. When not connected the scan time is not affected and
is the same 1.9s.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
575b5f34aa089cdaf92dda905d3b1dff1947f257 19-Jul-2011 Raja Mani <rmani@qca.qualcomm.com> ath6kl: Use bit field macros to maintain wlan enabled and disabled status

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
bdcd81707973cf8aa9305337166f8ee842a050d4 17-Jul-2011 Kalle Valo <kvalo@qca.qualcomm.com> Add ath6kl cleaned up driver

Last May we started working on cleaning up ath6kl driver which is
currently in staging. The work has happened in a separate
ath6kl-cleanup tree:

http://git.kernel.org/?p=linux/kernel/git/kvalo/ath6kl-cleanup.git;a=summary

After over 1100 (!) patches we have now reached a state where I would
like to start discussing about pushing the driver to the wireless
trees and replacing the staging driver.

The driver is now a lot smaller and looks like a proper Linux driver.
The size of the driver (measured with simple wc -l) dropped from 49
kLOC to 18 kLOC and the number of the .c and .h files dropped from 107
to 22. Most importantly the number of subdirectories reduced from 26
to zero :)

There are two remaining checkpatch warnings in the driver which we
decided to omit for now:

drivers/net/wireless/ath/ath6kl/debug.c:31:
WARNING: printk() should include KERN_ facility level
drivers/net/wireless/ath/ath6kl/sdio.c:527:
WARNING: msleep < 20ms can sleep for up to 20ms;
see Documentation/timers/timers-howto.txt

The driver has endian annotations for all the hardware specific
structures and there are no sparse errors. Unfortunately I don't have
any big endian hardware to test that right now.

We have been testing the driver both on x86 and arm platforms. The
code is also compiled with sparc and parisc cross compilers.

Notable missing features compared to the current staging driver are:

o HCI over SDIO support
o nl80211 testmode
o firmware logging
o suspend support

Testmode, firmware logging and suspend support will be added soon. HCI
over SDIO support will be more difficult as the HCI driver needs to
share code with the wifi driver. This is something we need to research
more.

Also I want to point out the changes I did for signed endian support.
As I wasn't able to find any support for signed endian annotations I
decided to follow what NTFS has done and added my own. Grep for sle16
and sle32, especially from wmi.h.

Various people have been working on the cleanup, the hall of
fame based on number of patches is:

543 Vasanthakumar Thiagarajan
403 Raja Mani
252 Kalle Valo
16 Vivek Natarajan
12 Suraj Sumangala
3 Joe Perches
2 Jouni Malinen

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Vivek Natarajan <nataraja@qca.qualcomm.com>
Signed-off-by: Suraj Sumangala <surajs@qca.qualcomm.com>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>