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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
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16
include/net/mac80211.h
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@@ -1606,6 +1606,18 @@ enum ieee80211_ampdu_mlme_action {
* you should ensure to cancel it on this callback.
* Must be implemented and can sleep.
*
* @suspend: Suspend the device; mac80211 itself will quiesce before and
* stop transmitting and doing any other configuration, and then
* ask the device to suspend. This is only invoked when WoWLAN is
* configured, otherwise the device is deconfigured completely and
* reconfigured at resume time.
*
* @resume: If WoWLAN was configured, this indicates that mac80211 is
* now resuming its operation, after this the device must be fully
* functional again. If this returns an error, the only way out is
* to also unregister the device. If it returns 1, then mac80211
* will also go through the regular complete restart on resume.
*
* @add_interface: Called when a netdevice attached to the hardware is
* enabled. Because it is not called for monitor mode devices, @start
* and @stop must be implemented.
@@ -1831,6 +1843,10 @@ struct ieee80211_ops {
void (*tx)(struct ieee80211_hw *hw, struct sk_buff *skb);
int (*start)(struct ieee80211_hw *hw);
void (*stop)(struct ieee80211_hw *hw);
#ifdef CONFIG_PM
int (*suspend)(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan);
int (*resume)(struct ieee80211_hw *hw);
#endif
int (*add_interface)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif);
int (*change_interface)(struct ieee80211_hw *hw,