diff options
| author | Eliad Peller <eliad@wizery.com> | 2011-06-13 12:47:30 +0300 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-06-17 14:22:18 -0400 |
| commit | b856439b1b54358e580aaee5dbe683af5ada9403 (patch) | |
| tree | dc38beee0a1585693fa228e33646dee5a37f456d /include/net | |
| parent | eb40e3e8bb453519ae17d42e7cab6bdd2b4b9fc5 (diff) | |
mac80211: add cancel_hw_scan() callback
When suspending, __ieee80211_suspend() calls ieee80211_scan_cancel(),
which will only cancel sw scan. In order to cancel hw scan, the
low-level driver has to cancel it in the suspend() callback. however,
this is too late, as a new scan_work will be enqueued (while the driver
is going into suspend).
Add a new cancel_hw_scan() callback, asking the driver to cancel an
active hw scan, and call it in ieee80211_scan_cancel().
Signed-off-by: Eliad Peller <eliad@wizery.com>
Reviewed-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/mac80211.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h index e33fe795a3a4..120f102814b6 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1708,6 +1708,14 @@ enum ieee80211_ampdu_mlme_action { * any error unless this callback returned a negative error code. * The callback can sleep. * + * @cancel_hw_scan: Ask the low-level tp cancel the active hw scan. + * The driver should ask the hardware to cancel the scan (if possible), + * but the scan will be completed only after the driver will call + * ieee80211_scan_completed(). + * This callback is needed for wowlan, to prevent enqueueing a new + * scan_work after the low-level driver was already suspended. + * The callback can sleep. + * * @sched_scan_start: Ask the hardware to start scanning repeatedly at * specific intervals. The driver must call the * ieee80211_sched_scan_results() function whenever it finds results. @@ -1900,6 +1908,8 @@ struct ieee80211_ops { u32 iv32, u16 *phase1key); int (*hw_scan)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct cfg80211_scan_request *req); + void (*cancel_hw_scan)(struct ieee80211_hw *hw, + struct ieee80211_vif *vif); int (*sched_scan_start)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct cfg80211_sched_scan_request *req, |