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mac80211: add basic support for WoWLAN

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This adds basic support for the new WoWLAN
configuration in mac80211. The behaviour is
completely offloaded to the driver though,
with two new callbacks (suspend/resume).

Options for the driver include a complete
reconfiguration after wakeup, and exposing
all the triggers it wants to support.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2011-05-04 15:37:29 +02:00 • committed by John W. Linville
parent ff1b6e69ad
commit eecc48000a
9 changed files with 97 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

19
net/mac80211/util.c
View file

@ -1125,9 +1125,27 @@ int ieee80211_reconfig(struct ieee80211_local *local)
struct sta_info *sta;
int res;
#ifdef CONFIG_PM
if (local->suspended)
local->resuming = true;
if (local->wowlan) {
local->wowlan = false;
res = drv_resume(local);
if (res < 0) {
local->resuming = false;
return res;
}
if (res == 0)
goto wake_up;
WARN_ON(res > 1);
/*
* res is 1, which means the driver requested
* to go through a regular reset on wakeup.
*/
}
#endif
/* restart hardware */
if (local->open_count) {
/*
@ -1258,6 +1276,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
if (ieee80211_sdata_running(sdata))
ieee80211_enable_keys(sdata);
wake_up:
ieee80211_wake_queues_by_reason(hw,
IEEE80211_QUEUE_STOP_REASON_SUSPEND);