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Fix kernel oops when trying to use passive scheduled scans. The
reason was that in passive scans there are no SSIDs, so there was a
NULL pointer dereference.
To solve the problem, we now check the number of SSIDs provided in the
sched_scan request and only access the list if there's one or more
(ie. passive scan is not forced). We also force all the channels to
be passive by adding the IEEE80211_CHAN_PASSIVE_SCAN flag locally
before the checks in the wl1271_scan_get_sched_scan_channels()
function.
Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Use a different value for DFS dwell time when performing a scheduled
scan. Previously we were using the same value as for normal passive
scans. This adds some flexibility between these two different types
of passive scan.
For now we use 150 TUs for DFS channel dwell time. This may need to
be fine-tuned in the future.
Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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DFS channels were never getting included in the scheduled scans,
because they always contain the passive flag as well and the call was
asking for DFS and active channels.
Fix this by ignoring the passive flag when collecting DFS channels.
Also, move the DFS channels in the channel list before the 5GHz active
channels (this was implemented in the FW differently than specified).
Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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We were comparing bitwise AND results with a boolean, so when the
boolean was set to true, it was not matching as it should.
Fix this by booleanizing the bitwise AND results with !!.
Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The current firmware only supports scheduled scan in station mode and
when idle. To prevent the firmware from crashing, return -EOPNOTSUPP
when sched_scan start is called in an invalid state.
Signed-off-by: Luciano Coelho <coelho@ti.com>
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This patch adds the mac80211 operations for scheduled scan and the
scheduled scan results reporting.
Signed-off-by: Luciano Coelho <coelho@ti.com>
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Add firmware command structures, definitions and code to to configure,
start and stop scheduled scans.
Signed-off-by: Luciano Coelho <coelho@ti.com>
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We were using an array of booleans to mark the channels we had already
scanned. This was causing a sparse error, because bool is not a type
with defined size. To fix this, use bitmasks instead, which is much
cleaner anyway.
Thanks Johannes Berg for the idea.
Signed-off-by: Luciano Coelho <coelho@ti.com>
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Commands are sometimes sent to FW on scan completion. Make sure the chip
is awake to receive them. Sending commands while the chip is in ELP
can cause SDIO read errors and/or crash the FW.
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
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The probe-request template used in the hardware connection monitoring feature
thus far has been an empty one, without the SSID IE and without supported rate
IEs. This causes problems with some AP's.
Additionally, after connected scans, the template for connection maintenance
would remain to be the one last used for scanning - potentially incorrect.
Fix these by getting a pre-filled directed probe-request template for the
associated-to AP from mac80211.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
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All files name prefix removed due to the fact that wl12xx driver supports
wl1271 and wl1273.
Also the definition in Kconfig and header files changed respectively.
Signed-off-by: Shahar Levi <shahar_levi@ti.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
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