Refactor the function to make it easier to
extend.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

Some of the functions to retrieve a device can
be static as they're used only in nl80211.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

Some compilers (eg. gcc 4.4.1 for ARM) report a false positive warning
in mlme.c:

net/mac80211/mlme.c: In function 'ieee80211_prep_connection':
net/mac80211/mlme.c:3035: warning: 'sta' may be used uninitialized in this function

This is a false positive because the place where 'sta' is used is
inside an if with the same condition of where it is set:

[...]
        if (!have_sta) {
                sta = sta_info_alloc(sdata, cbss->bssid, GFP_KERNEL);
                if (!sta)
                        return -ENOMEM;
        }
[...]
        if (!have_sta) {
[...]
                sta->sta.supp_rates[cbss->channel->band] = rates;
[...]

For some reason the compiler doesn't understand this and warns.

While this is not a problem in the code itself, we can avoid polluting
the build logs with false positives by setting sta to NULL on
declaration and checking for sta instead of !have_sta in the second if.
Reported-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

The 'tell_ap' argument is always true. So that remove it
and simplify the function.
Signed-off-by: NRajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

This patch fixes the problem of dropping RANN element if the TTL
is 1. If the received RANN element TTL is 1 or greater than 1, the
RANN is processed. However, forwarding of received RANN element
with TTL 1 or less is prohibited according to the standard. This
is previously reported by Monthadar Al Jaberi.

Besides, this patch also avoid the processing of unicast PREQ
generation if the RANN element does not meet the acceptance
criteria mentioned in Sec. 13.10.12.4.2 of IEEE Std. 802.11-2012.
Reported-by: NMonthadar Al Jaberi <monthadar@gmail.com>
Signed-off-by: NChun-Yeow Yeoh <yeohchunyeow@gmail.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

Some APs experience problems when working with U-APSD. Decrease the
probability of that happening by using legacy mode for all ACs but VO.

The AP that caused us troubles was a Cisco 4410N. It ignores our
setting, and always treats non-VO ACs as legacy.
Signed-off-by: NArik Nemtsov <arik@wizery.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

While HW reconfig is in progress, drop all incoming Rx. This prevents
incoming packets from changing the internal state of the driver or
calling callbacks of the low level driver while it is in inconsistent
state.
Signed-off-by: NArik Nemtsov <arik@wizery.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

This patch fixes the wrong assignment of mesh element TTL.
Signed-off-by: NChun-Yeow Yeoh <yeohchunyeow@gmail.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

As defined in section 13.10.9.3 Case D (802.11-2012), this
control variable is used to limit the mesh STA to send only
one PREQ to a root mesh STA within this interval of time
(in TUs). The default value for this variable is set to
2000 TUs. However, for current implementation, the maximum
configurable of dot11MeshHWMPconfirmationInterval is
restricted by dot11MeshHWMPactivePathTimeout.
Signed-off-by: NChun-Yeow Yeoh <yeohchunyeow@gmail.com>
[line-break commit log]
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

mesh_path_root_timer is invoked once the dot11MeshHWMPRootMode
is larger than 1. This patch also adds the backward compatible
to the previous setting on dot11MeshHWMPRootMode. If the user
configures as follow, it will still trigger the proactive RANN
with Gate Announcement.

iw mesh0 set mesh_param mesh_hwmp_rootmode 1
iw mesh0 set mesh_param mesh_gate_announcements 1

similar to the following setting:

iw mesh0 set mesh_param mesh_hwmp_rootmode 4
iw mesh0 set mesh_param mesh_gate_announcements 1
Signed-off-by: NChun-Yeow Yeoh <yeohchunyeow@gmail.com>
[line-break commit log]
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

Generate the proactive PREP element in Proactive PREQ mode as
defined in Sec. 13.10.10.3 (Case D) of IEEE Std. 802.11-2012.
Signed-off-by: NChun-Yeow Yeoh <yeohchunyeow@gmail.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

Generate the proactive PREQ element as defined in
Sec. 13.10.9.3 (Case C) of IEEE Std. 802.11-2012
based on the selection of dot11MeshHWMPRootMode as follow:
dot11MeshHWMPRootMode (2) is proactivePREQnoPREP
dot11MeshHWMPRootMode (3) is proactivePREQwithPREP

The proactive PREQ is generated based on the interval
defined by dot11MeshHWMProotInterval.

With this change, proactive RANN element is now generated
if the dot11MeshHWMPRootMode is set to (4) instead of (1).
Signed-off-by: NChun-Yeow Yeoh <yeohchunyeow@gmail.com>
[line-break commit log]
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

Add the mesh configuration parameters dot11MeshHWMProotInterval
and dot11MeshHWMPactivePathToRootTimeout to be used by
proactive PREQ mechanism.
Signed-off-by: NChun-Yeow Yeoh <yeohchunyeow@gmail.com>
[line-break commit log]
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

Add missing entries to nl80211.h and fix
the kernel-doc notation in cfg80211.h.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

It should be NL80211_SCHED_SCAN_MATCH_ATTR_SSID as
documented, not NL80211_ATTR_SCHED_SCAN_MATCH_SSID.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

If you add a monitor interface in parallel to a normal interface
mac80211 will let you to change the channel type on the monitor
interface even if you are connected. Add an explicit check to
disallow this.
Signed-off-by: NPontus Fuchs <pontus.fuchs@gmail.com>
[fix typo in commit log, use sdata instead of netdev]
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

In my redesign of remain-on-channel I forgot
that an item could be cancelled when it's a
dependent item that is part of another item.
Allow cancelling such items by removing them
from the dependents list.

Note that when we cancel the main item, all
its dependents are also cancelled. It would
be possible to not do that, but would need
tricks to promote an item from dependent to
top-level and is tricky in the HW ROC case.
Reported-by: NIlan Peer <ilan.peer@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

Reference: http://standards.ieee.org/develop/regauth/oui/oui.txtSigned-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

Ilan pointed out to me that ieee80211_start_next_roc()
already calls ieee80211_run_deferred_scan() if the list
of ROC items is empty, so there's no need to call it
again after calling ieee80211_start_next_roc().
Reported-by: NIlan Peer <ilan.peer@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

fix the coding style related to mesh parameters, especially the indentation,
as pointed out by Johannes Berg.
Signed-off-by: NChun-Yeow Yeoh <yeohchunyeow@gmail.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

Add the missing kernel-doc for mesh configuration parameters as pointed
out by Johannes Berg.
Signed-off-by: NChun-Yeow Yeoh <yeohchunyeow@gmail.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

Signed-off-by: NJavier Cardona <javier@cozybit.com>
Reviewed-by: NJason Abele <jason@cozybit.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

Signed-off-by: NJavier Cardona <javier@cozybit.com>
Reviewed-by: NJason Abele <jason@cozybit.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

  CC      drivers/net/wireless/ti/wl18xx/main.o
drivers/net/wireless/ti/wl18xx/main.c: In function ‘wl18xx_conf_init’:
drivers/net/wireless/ti/wl18xx/main.c:1024:3: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long unsigned int’ [-Wformat]
drivers/net/wireless/ti/wl18xx/main.c:1024:3: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘size_t’ [-Wformat]
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Don't spew errors when we can't find the NVS file in wlcore. Instead
fail the wl12xx boot HW op if the NVS isn't found.

Take this opportunity to remove some dead code from register_hw()
which looks for the NVS again needlessly.
Signed-off-by: NArik Nemtsov <arik@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Give all wl18xx phy module paramters -1 as a default value, indicating
the paramter was not set. Add previous default values to the default
18xx priv conf structure.

Remove the board_type field from wl18xx priv. The field with the same
name inside the phy conf is good enough for our purposes.
Signed-off-by: NArik Nemtsov <arik@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

wl18xx_conf_phy represents part of the FW native wl18xx_mac_and_phy_params
structure. Remove it and replace the phy part of the wl18xx conf with the
FW bound structure. This allows us to set/override all members.

Increment the wlconf version to ensure compatibility with the new
structure
Signed-off-by: NArik Nemtsov <arik@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Aligned to the struct in FW 8.2.0.0.91 and updated the debugfs entries
accordingly.
Signed-off-by: NIdo Reis <idor@ti.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

This is supported by new FW versions (.88+).
Signed-off-by: NArik Nemtsov <arik@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Instead of using the hardcoded configuration structure, try to read it
from a "firmware" file called wl18xx-conf.bin.  If the file doesn't
exist, fall back to the hardcoded version.  If the file exists but is
illegal, bail out.
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Add conf file header structure, magic and version values and export
the entire conf struct in debugfs.
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Since we are now going to export the conf structure and read it from a
file, it should be packed to avoid surprises with padding bytes.
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Since we will export the conf structure as a file, we need to use well
defined types.  Instead of using enum, whose size may vary, use u8 for
bcn_filt_mode instead.
Signed-off-by: NLuciano Coelho <coelho@ti.com>

The conf structure is going to be exported to a file, so we should use
only well defined types.  bool is not well defined and may vary from
platform to platform, so change the host_fast_wakeup_support type to
u8 instead.
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Instead of parsing all the binary data returned by the firmware, we
should simply export the binary and let the userspace do the parsing.

This commit adds a new file to debugfs to do that.
Signed-off-by: NLuciano Coelho <coelho@ti.com>

This patch calls ACX_CLEAR_STATISTICS to clear the firmware
statistics.  The trigger is a new debugfs file called
clear_fw_statistics in the fw_stats directory.
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Add control over several conf fields which combined
control the rx interrupt pacing mechanism, that is avoiding
getting an interrupt following a single frame rx but instead
have the FW trigger the interrupt only after a certain
amount of frames received or a timeout.
Signed-off-by: NEyal Shapira <eyal@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

The current debugfs code contains too much code duplication
of bolierplate code. Add some macro magic to avoid this and
enable adding new debugfs entries by using just a few lines.
Signed-off-by: NEyal Shapira <eyal@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

Add support for an external 26 MHz crystal source.

[Changed wl->ref_clock to priv->ref_clock -- Luca.]
Signed-off-by: NGrant Erickson <marathon96@gmail.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>