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authorJohannes Berg <johannes.berg@intel.com>2011-05-04 15:37:29 +0200
committerJohn W. Linville <linville@tuxdriver.com>2011-05-05 14:59:20 -0400
commiteecc48000afe2ca6da22122d553b7cad294e42fc (patch)
treeade8a18351be5ca63b14d24f3f4db47909486fba /net/mac80211/util.c
parentff1b6e69ad4f31fb3c9c6da2665655f2e798dd70 (diff)
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 <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/util.c')
-rw-r--r--net/mac80211/util.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index ef0560a2346..d3fe2d23748 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);