ath5k: Use helper function to get eeprom mode from channel

Introduce a helper function to get the EEPROM mode from channel and remove
multiple similar switch statements. Also since it's now easy to get the EEPROM
mode from the channel, use them inside the functions which need it, instead of
passing a redundant ee_mode parameter.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 15 insertions, 53 deletions

diff --git a/drivers/net/wireless/ath/ath5k/phy.c b/drivers/net/wireless/ath/ath5k/phy.c
index b6e96213e924..9306d5fda675 100644
--- a/drivers/net/wireless/ath/ath5k/phy.c
+++ b/drivers/net/wireless/ath/ath5k/phy.c
@@ -1355,20 +1355,7 @@ void ath5k_hw_update_noise_floor(struct ath5k_hw *ah)
 		return;
 	}
 
-	switch (ah->ah_current_channel->hw_value & CHANNEL_MODES) {
-	case CHANNEL_A:
-	case CHANNEL_XR:
-		ee_mode = AR5K_EEPROM_MODE_11A;
-		break;
-	case CHANNEL_G:
-		ee_mode = AR5K_EEPROM_MODE_11G;
-		break;
-	default:
-	case CHANNEL_B:
-		ee_mode = AR5K_EEPROM_MODE_11B;
-		break;
-	}
-
+	ee_mode = ath5k_eeprom_mode_from_channel(ah->ah_current_channel);
 
 	/* completed NF calibration, test threshold */
 	nf = ath5k_hw_read_measured_noise_floor(ah);
@@ -1941,18 +1928,8 @@ ath5k_hw_set_antenna_mode(struct ath5k_hw *ah, u8 ant_mode)
 
 	def_ant = ah->ah_def_ant;
 
-	switch (channel->hw_value & CHANNEL_MODES) {
-	case CHANNEL_A:
-	case CHANNEL_XR:
-		ee_mode = AR5K_EEPROM_MODE_11A;
-		break;
-	case CHANNEL_G:
-		ee_mode = AR5K_EEPROM_MODE_11G;
-		break;
-	case CHANNEL_B:
-		ee_mode = AR5K_EEPROM_MODE_11B;
-		break;
-	default:
+	ee_mode = ath5k_eeprom_mode_from_channel(channel);
+	if (ee_mode < 0) {
 		ATH5K_ERR(ah->ah_sc,
 			"invalid channel: %d\n", channel->center_freq);
 		return;
@@ -3100,11 +3077,11 @@ ath5k_setup_rate_powertable(struct ath5k_hw *ah, u16 max_pwr,
  */
 static int
 ath5k_hw_txpower(struct ath5k_hw *ah, struct ieee80211_channel *channel,
-		u8 ee_mode, u8 txpower)
+		 u8 txpower)
 {
 	struct ath5k_rate_pcal_info rate_info;
 	struct ieee80211_channel *curr_channel = ah->ah_current_channel;
-	u8 type;
+	u8 type, ee_mode;
 	int ret;
 
 	if (txpower > AR5K_TUNE_MAX_TXPOWER) {
@@ -3112,6 +3089,13 @@ ath5k_hw_txpower(struct ath5k_hw *ah, struct ieee80211_channel *channel,
 		return -EINVAL;
 	}
 
+	ee_mode = ath5k_eeprom_mode_from_channel(channel);
+	if (ee_mode < 0) {
+		ATH5K_ERR(ah->ah_sc,
+			"invalid channel: %d\n", channel->center_freq);
+		return -EINVAL;
+	}
+
 	/* Initialize TX power table */
 	switch (ah->ah_radio) {
 	case AR5K_RF5110:
@@ -3208,31 +3192,10 @@ ath5k_hw_txpower(struct ath5k_hw *ah, struct ieee80211_channel *channel,
 
 int ath5k_hw_set_txpower_limit(struct ath5k_hw *ah, u8 txpower)
 {
-	/*Just a try M.F.*/
-	struct ieee80211_channel *channel = ah->ah_current_channel;
-	u8 ee_mode;
-
-	switch (channel->hw_value & CHANNEL_MODES) {
-	case CHANNEL_A:
-	case CHANNEL_XR:
-		ee_mode = AR5K_EEPROM_MODE_11A;
-		break;
-	case CHANNEL_G:
-		ee_mode = AR5K_EEPROM_MODE_11G;
-		break;
-	case CHANNEL_B:
-		ee_mode = AR5K_EEPROM_MODE_11B;
-		break;
-	default:
-		ATH5K_ERR(ah->ah_sc,
-			"invalid channel: %d\n", channel->center_freq);
-		return -EINVAL;
-	}
-
 	ATH5K_DBG(ah->ah_sc, ATH5K_DEBUG_TXPOWER,
 		"changing txpower to %d\n", txpower);
 
-	return ath5k_hw_txpower(ah, channel, ee_mode, txpower);
+	return ath5k_hw_txpower(ah, ah->ah_current_channel, txpower);
 }
 
 /*************\
@@ -3240,7 +3203,7 @@ int ath5k_hw_set_txpower_limit(struct ath5k_hw *ah, u8 txpower)
 \*************/
 
 int ath5k_hw_phy_init(struct ath5k_hw *ah, struct ieee80211_channel *channel,
-				u8 mode, u8 ee_mode, bool fast)
+		      u8 mode, bool fast)
 {
 	struct ieee80211_channel *curr_channel;
 	int ret, i;
@@ -3281,8 +3244,7 @@ int ath5k_hw_phy_init(struct ath5k_hw *ah, struct ieee80211_channel *channel,
 	 * RF buffer settings on 5211/5212+ so that we
 	 * properly set curve indices.
 	 */
-	ret = ath5k_hw_txpower(ah, channel, ee_mode,
-		ah->ah_txpower.txp_cur_pwr ?
+	ret = ath5k_hw_txpower(ah, channel, ah->ah_txpower.txp_cur_pwr ?
 			ah->ah_txpower.txp_cur_pwr / 2 : AR5K_TUNE_MAX_TXPOWER);
 	if (ret)
 		return ret;