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mac80211: add support for HW scheduled scan

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Implement support for HW scheduled scan.  The mac80211 code doesn't perform
scheduled scans itself, but calls the driver to start and stop scheduled
scans.

This patch also creates a trace event class to be used by drv_hw_scan
and the new drv_sched_scan_start and drv_sched_stop functions, in
order to avoid duplicate code.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luciano Coelho
2011-05-11 17:09:36 +03:00
committed by John W. Linville
parent 807f8a8c30
commit 79f460ca49
8 changed files with 292 additions and 22 deletions
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6
net/mac80211/main.c
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@@ -358,7 +358,8 @@ static void ieee80211_restart_work(struct work_struct *work)
flush_workqueue(local->workqueue);
mutex_lock(&local->mtx);
WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) ||
local->sched_scanning,
"%s called with hardware scan in progress\n", __func__);
mutex_unlock(&local->mtx);
@@ -833,6 +834,9 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
if (!local->ops->remain_on_channel)
local->hw.wiphy->max_remain_on_channel_duration = 5000;
if (local->ops->sched_scan_start)
local->hw.wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
result = wiphy_register(local->hw.wiphy);
if (result < 0)
goto fail_wiphy_register;