ath5k: Use mac80211 channel mapping function

Use mac80211 channel mapping function instead of own homegrown version.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Acked-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 019a74d..c017758 100644 (file)
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -242,18 +242,6 @@ static int ath5k_reg_notifier(struct wiphy *wiphy, struct regulatory_request *re
 \********************/
 
 /*
- * Convert IEEE channel number to MHz frequency.
- */
-static inline short
-ath5k_ieee2mhz(short chan)
-{
-       if (chan <= 14 || chan >= 27)
-               return ieee80211chan2mhz(chan);
-       else
-               return 2212 + chan * 20;
-}
-
-/*
  * Returns true for the channel numbers used without all_channels modparam.
  */
 static bool ath5k_is_standard_channel(short chan)
@@ -274,6 +262,7 @@ ath5k_copy_channels(struct ath5k_hw *ah,
                unsigned int max)
 {
        unsigned int i, count, size, chfreq, freq, ch;
+       enum ieee80211_band band;
 
        if (!test_bit(mode, ah->ah_modes))
                return 0;
@@ -283,11 +272,13 @@ ath5k_copy_channels(struct ath5k_hw *ah,
                /* 1..220, but 2GHz frequencies are filtered by check_channel */
                size = 220 ;
                chfreq = CHANNEL_5GHZ;
+               band = IEEE80211_BAND_5GHZ;
                break;
        case AR5K_MODE_11B:
        case AR5K_MODE_11G:
                size = 26;
                chfreq = CHANNEL_2GHZ;
+               band = IEEE80211_BAND_2GHZ;
                break;
        default:
                ATH5K_WARN(ah->ah_sc, "bad mode, not copying channels\n");
@@ -296,7 +287,10 @@ ath5k_copy_channels(struct ath5k_hw *ah,
 
        for (i = 0, count = 0; i < size && max > 0; i++) {
                ch = i + 1 ;
-               freq = ath5k_ieee2mhz(ch);
+               freq = ieee80211_channel_to_frequency(ch, band);
+
+               if (freq == 0) /* mapping failed - not a standard channel */
+                       continue;
 
                /* Check if channel is supported by the chipset */
                if (!ath5k_channel_ok(ah, freq, chfreq))
@@ -307,8 +301,7 @@ ath5k_copy_channels(struct ath5k_hw *ah,
 
                /* Write channel info and increment counter */
                channels[count].center_freq = freq;
-               channels[count].band = (chfreq == CHANNEL_2GHZ) ?
-                       IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
+               channels[count].band = band;
                switch (mode) {
                case AR5K_MODE_11A:
                case AR5K_MODE_11G: