This patch adds power management support in mac80211.

This allows us to enable power management through the "iwconfig <device> power 
<off/on>" command.
The code is based on "mac80211-10.0.0" but it is a little bit modified.

Signed-off-by: Miguel Botón <[EMAIL PROTECTED]>

diff --git a/net/mac80211/ieee80211_ioctl.c b/net/mac80211/ieee80211_ioctl.c
index 6caa3ec..f5eebec 100644
--- a/net/mac80211/ieee80211_ioctl.c
+++ b/net/mac80211/ieee80211_ioctl.c
@@ -674,6 +687,51 @@ static int ieee80211_ioctl_giwtxpower(struct net_device 
*dev,
        return 0;
 }
 
+static int ieee80211_ioctl_siwpower(struct net_device *dev,
+                                   struct iw_request_info *info,
+                                   union iwreq_data *wrqu,
+                                   char *extra)
+{
+       struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+       struct ieee80211_conf *conf = &local->hw.conf;
+
+       if (wrqu->power.disabled) {
+               conf->power_management_enable = 0;
+               if (ieee80211_hw_config(local))
+                       return -EINVAL;
+               return 0;
+       }
+
+       switch (wrqu->power.flags & IW_POWER_MODE) {
+       case IW_POWER_ON:       /* If not specified */
+       case IW_POWER_MODE:     /* If set all mask */
+       case IW_POWER_ALL_R:    /* If explicitely state all */
+               break;
+       default:                /* Otherwise we don't support it */
+               return -EINVAL;
+       }
+
+       conf->power_management_enable = 1;
+
+       if (ieee80211_hw_config(local))
+               return -EINVAL;
+
+       return 0;
+}
+
+static int ieee80211_ioctl_giwpower(struct net_device *dev,
+                                   struct iw_request_info *info,
+                                   union iwreq_data *wrqu,
+                                   char *extra)
+{
+       struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+       struct ieee80211_conf *conf = &local->hw.conf;
+
+       wrqu->power.disabled = !conf->power_management_enable;
+
+       return 0;
+}
+
 static int ieee80211_ioctl_siwrts(struct net_device *dev,
                                  struct iw_request_info *info,
                                  struct iw_param *rts, char *extra)
@@ -1111,8 +1166,8 @@ static const iw_handler ieee80211_handler[] =
        (iw_handler) ieee80211_ioctl_giwretry,          /* SIOCGIWRETRY */
        (iw_handler) ieee80211_ioctl_siwencode,         /* SIOCSIWENCODE */
        (iw_handler) ieee80211_ioctl_giwencode,         /* SIOCGIWENCODE */
-       (iw_handler) NULL,                              /* SIOCSIWPOWER */
-       (iw_handler) NULL,                              /* SIOCGIWPOWER */
+       (iw_handler) ieee80211_ioctl_siwpower,          /* SIOCSIWPOWER */
+       (iw_handler) ieee80211_ioctl_giwpower,          /* SIOCGIWPOWER */
        (iw_handler) NULL,                              /* -- hole -- */
        (iw_handler) NULL,                              /* -- hole -- */
        (iw_handler) ieee80211_ioctl_siwgenie,          /* SIOCSIWGENIE */


-- 
        Miguel Botón
-
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