iwlwifi: align set channel with mac80211

This patch makes use of mac80211 defaults for channel and band.
Older code that uses G band channel 6 was removed. This patch also
changes iwl_set_rxon_channel signature.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/iwl-agn.c

@@ -2841,7 +2841,7 @@ static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *co
 	)
 		priv->staging_rxon.flags = 0;
 
-	iwl_set_rxon_channel(priv, conf->channel->band, channel);
+	iwl_set_rxon_channel(priv, conf->channel);
 
 	iwl_set_flags_for_band(priv, conf->channel->band);
 

drivers/net/wireless/iwlwifi/iwl-core.c

@@ -773,7 +773,7 @@ void iwl_set_rxon_chain(struct iwl_priv *priv)
 EXPORT_SYMBOL(iwl_set_rxon_chain);
 
 /**
- * iwlcore_set_rxon_channel - Set the phymode and channel values in staging RXON
+ * iwl_set_rxon_channel - Set the phymode and channel values in staging RXON
  * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz
  * @channel: Any channel valid for the requested phymode
 
@@ -782,10 +782,11 @@ EXPORT_SYMBOL(iwl_set_rxon_chain);
  * NOTE:  Does not commit to the hardware; it sets appropriate bit fields
  * in the staging RXON flag structure based on the phymode
  */
-int iwl_set_rxon_channel(struct iwl_priv *priv,
-				enum ieee80211_band band,
-				u16 channel)
+int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch)
 {
+	enum ieee80211_band band = ch->band;
+	u16 channel = ieee80211_frequency_to_channel(ch->center_freq);
+
 	if (!iwl_get_channel_info(priv, band, channel)) {
 		IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
 			       channel, band);
@@ -910,8 +911,6 @@ int iwl_init_drv(struct iwl_priv *priv)
 	priv->qos_data.qos_active = 0;
 	priv->qos_data.qos_cap.val = 0;
 
-	iwl_set_rxon_channel(priv, IEEE80211_BAND_2GHZ, 6);
-
 	priv->rates_mask = IWL_RATES_MASK;
 	/* If power management is turned on, default to AC mode */
 	priv->power_mode = IWL_POWER_AC;

drivers/net/wireless/iwlwifi/iwl-core.h

@@ -189,9 +189,7 @@ void iwl_clear_stations_table(struct iwl_priv *priv);
 void iwl_free_calib_results(struct iwl_priv *priv);
 void iwl_reset_qos(struct iwl_priv *priv);
 void iwl_set_rxon_chain(struct iwl_priv *priv);
-int iwl_set_rxon_channel(struct iwl_priv *priv,
-				enum ieee80211_band band,
-				u16 channel);
+int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch);
 void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info);
 u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv,
 			 struct ieee80211_ht_info *sta_ht_inf);