From eecc48000afe2ca6da22122d553b7cad294e42fc Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 4 May 2011 15:37:29 +0200 Subject: mac80211: add basic support for WoWLAN 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 Signed-off-by: John W. Linville --- net/mac80211/util.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'net/mac80211/util.c') diff --git a/net/mac80211/util.c b/net/mac80211/util.c index ef0560a2346a..d3fe2d237485 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -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); -- cgit v1.2.3