iwlwifi: add power management support

This patch adds power management support in iwl3945 and iwl4965 drivers= =2E

wireless/iwlwifi/iwl3945-base.c
index 9baf8de..5c7b422 100644

@@ -6951,6 +7187,7 @@ static int iwl3945_mac_config(struct ieee80211_hw=
 *hw, struct ieee80211_conf *co
 	struct iwl3945_priv *priv =3D hw->priv;
 	const struct iwl3945_channel_info *ch_info;
 	unsigned long flags;
+	int power_mode;

=20
mutex_lock(&priv->mutex);
IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel);
@@ -7001,6 +7238,21 @@ static int iwl3945_mac_config(struct ieee80211_h= w *hw, struct ieee80211_conf *co
}
#endif
=20
+ if (conf->power_management_enable)
+ power_mode =3D IWL_POWER_BATTERY | IWL_POWER_ENABLED;
+ else
+ power_mode =3D IWL_POWER_AC;
+
+ if (priv->power_mode !=3D power_mode) {
+ int rc;
+
+ rc =3D iwl3945_send_power_mode(priv, power_mode);
+ if (rc)
+ IWL_DEBUG_MAC80211("failed setting power mode.\n");
+ else
+ priv->power_mode =3D power_mode;
+ }
+
iwl3945_radio_kill_sw(priv, !conf->radio_enabled);
=20
if (!conf->radio_enabled) {

wireless/iwlwifi/iwl4965-base.c
index df011ea..8d303c5 100644

@@ -7352,6 +7352,7 @@ static int iwl4965_mac_config(struct ieee80211_hw=
 *hw, struct ieee80211_conf *co
 	struct iwl4965_priv *priv =3D hw->priv;
 	const struct iwl4965_channel_info *ch_info;
 	unsigned long flags;
+	int power_mode;

=20
mutex_lock(&priv->mutex);
IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel);
@@ -7414,6 +7415,21 @@ static int iwl4965_mac_config(struct ieee80211_h= w *hw, struct ieee80211_conf *co
}
#endif
=20
+ if (conf->power_management_enable)
+ power_mode =3D IWL_POWER_BATTERY | IWL_POWER_ENABLED;
+ else
+ power_mode =3D IWL_POWER_AC;
+
+ if (priv->power_mode !=3D power_mode) {
+ int rc;
+
+ rc =3D iwl4965_send_power_mode(priv, power_mode);
+ if (rc)
+ IWL_DEBUG_MAC80211("failed setting power mode.\n");
+ else
+ priv->power_mode =3D power_mode;
+ }
+
iwl4965_radio_kill_sw(priv, !conf->radio_enabled);
=20
if (!conf->radio_enabled) {

--=20
Miguel Bot=C3=B3n
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