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: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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@ -472,6 +472,9 @@ struct ieee80211_channel;
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* wireless extensions but this is subject to reevaluation as soon as this
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* code is used more widely and we have a first user without wext.
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*
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* @suspend: wiphy device needs to be suspended
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* @resume: wiphy device needs to be resumed
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*
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* @add_virtual_intf: create a new virtual interface with the given name,
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* must set the struct wireless_dev's iftype.
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*
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@ -525,6 +528,9 @@ struct ieee80211_channel;
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* @set_mgmt_extra_ie: Set extra IE data for management frames
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*/
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struct cfg80211_ops {
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int (*suspend)(struct wiphy *wiphy);
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int (*resume)(struct wiphy *wiphy);
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int (*add_virtual_intf)(struct wiphy *wiphy, char *name,
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enum nl80211_iftype type, u32 *flags,
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struct vif_params *params);
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@ -55,6 +55,34 @@ static int wiphy_uevent(struct device *dev, struct kobj_uevent_env *env)
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}
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#endif
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static int wiphy_suspend(struct device *dev, pm_message_t state)
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{
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struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
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int ret = 0;
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if (rdev->ops->suspend) {
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rtnl_lock();
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ret = rdev->ops->suspend(&rdev->wiphy);
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rtnl_unlock();
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}
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return ret;
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}
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static int wiphy_resume(struct device *dev)
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{
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struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
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int ret = 0;
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if (rdev->ops->resume) {
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rtnl_lock();
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ret = rdev->ops->resume(&rdev->wiphy);
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rtnl_unlock();
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}
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return ret;
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}
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struct class ieee80211_class = {
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.name = "ieee80211",
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.owner = THIS_MODULE,
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@ -63,6 +91,8 @@ struct class ieee80211_class = {
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#ifdef CONFIG_HOTPLUG
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.dev_uevent = wiphy_uevent,
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#endif
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.suspend = wiphy_suspend,
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.resume = wiphy_resume,
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};
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int wiphy_sysfs_init(void)
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