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Commit 0378b3f1 authored by Johannes Berg's avatar Johannes Berg Committed by John W. Linville
Browse files

cfg80211: add PM hooks 



This should help implement suspend/resume in mac80211, these
hooks will be run before the device is suspended and after it
resumes. Therefore, they can touch the hardware as much as
they want to.

Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: default avatarBob Copeland <me@bobcopeland.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent e0463f50

include/net/cfg80211.h

+6 −0
Original line number Diff line number Diff line
@@ -472,6 +472,9 @@ struct ieee80211_channel; 
 * wireless extensions but this is subject to reevaluation as soon as this

 * code is used more widely and we have a first user without wext.

 *

 * @suspend: wiphy device needs to be suspended

 * @resume: wiphy device needs to be resumed

 *

 * @add_virtual_intf: create a new virtual interface with the given name,

 *	must set the struct wireless_dev's iftype.

 *
@@ -525,6 +528,9 @@ struct ieee80211_channel; 
 * @set_mgmt_extra_ie: Set extra IE data for management frames

 */

struct cfg80211_ops {

	int	(*suspend)(struct wiphy *wiphy);

	int	(*resume)(struct wiphy *wiphy);



	int	(*add_virtual_intf)(struct wiphy *wiphy, char *name,

				    enum nl80211_iftype type, u32 *flags,

				    struct vif_params *params);

net/wireless/sysfs.c

+30 −0
Original line number Diff line number Diff line
@@ -55,6 +55,34 @@ static int wiphy_uevent(struct device *dev, struct kobj_uevent_env *env) 
}

#endif



static int wiphy_suspend(struct device *dev, pm_message_t state)

{

	struct cfg80211_registered_device *rdev = dev_to_rdev(dev);

	int ret = 0;



	if (rdev->ops->suspend) {

		rtnl_lock();

		ret = rdev->ops->suspend(&rdev->wiphy);

		rtnl_unlock();

	}



	return ret;

}



static int wiphy_resume(struct device *dev)

{

	struct cfg80211_registered_device *rdev = dev_to_rdev(dev);

	int ret = 0;



	if (rdev->ops->resume) {

		rtnl_lock();

		ret = rdev->ops->resume(&rdev->wiphy);

		rtnl_unlock();

	}



	return ret;

}



struct class ieee80211_class = {

	.name = "ieee80211",

	.owner = THIS_MODULE,
@@ -63,6 +91,8 @@ struct class ieee80211_class = { 
#ifdef CONFIG_HOTPLUG

	.dev_uevent = wiphy_uevent,

#endif

	.suspend = wiphy_suspend,

	.resume = wiphy_resume,

};



int wiphy_sysfs_init(void)