cfg80211: Add support for 60GHz band channels 5 and 6

The current support in the 60GHz band is for channels 1-4.
Add support for channels 5 and 6.
This requires enlarging ieee80211_channel.center_freq from u16 to u32.

Signed-off-by: Alexei Avshalom Lazar <[email protected]>
Signed-off-by: Johannes Berg <[email protected]>

Author: Alexei Avshalom Lazar

drivers/net/wireless/ath/wil6210/debugfs.c

@@ -1436,7 +1436,7 @@ static int wil_freq_debugfs_show(struct seq_file *s, void *data)
 {
 	struct wil6210_priv *wil = s->private;
 	struct wireless_dev *wdev = wil->main_ndev->ieee80211_ptr;
-	u16 freq = wdev->chandef.chan ? wdev->chandef.chan->center_freq : 0;
+	u32 freq = wdev->chandef.chan ? wdev->chandef.chan->center_freq : 0;
 
 	seq_printf(s, "Freq = %d\n", freq);
 

include/net/cfg80211.h

@@ -149,7 +149,7 @@ enum ieee80211_channel_flags {
  */
 struct ieee80211_channel {
 	enum nl80211_band band;
-	u16 center_freq;
+	u32 center_freq;
 	u16 hw_value;
 	u32 flags;
 	int max_antenna_gain;

include/uapi/linux/nl80211.h

@@ -4338,7 +4338,7 @@ enum nl80211_txrate_gi {
  * enum nl80211_band - Frequency band
  * @NL80211_BAND_2GHZ: 2.4 GHz ISM band
  * @NL80211_BAND_5GHZ: around 5 GHz band (4.9 - 5.7 GHz)
- * @NL80211_BAND_60GHZ: around 60 GHz band (58.32 - 64.80 GHz)
+ * @NL80211_BAND_60GHZ: around 60 GHz band (58.32 - 69.12 GHz)
  * @NUM_NL80211_BANDS: number of bands, avoid using this in userspace
  *	since newer kernel versions may support more bands
  */

net/wireless/reg.c

@@ -3301,7 +3301,7 @@ void regulatory_hint_disconnect(void)
 	restore_regulatory_settings(false);
 }
 
-static bool freq_is_chan_12_13_14(u16 freq)
+static bool freq_is_chan_12_13_14(u32 freq)
 {
 	if (freq == ieee80211_channel_to_frequency(12, NL80211_BAND_2GHZ) ||
 	    freq == ieee80211_channel_to_frequency(13, NL80211_BAND_2GHZ) ||

net/wireless/trace.h

@@ -112,7 +112,7 @@
 	} while (0)
 
 #define CHAN_ENTRY __field(enum nl80211_band, band) \
-		   __field(u16, center_freq)
+		   __field(u32, center_freq)
 #define CHAN_ASSIGN(chan)					  \
 	do {							  \
 		if (chan) {					  \

net/wireless/util.c

@@ -88,7 +88,7 @@ int ieee80211_channel_to_frequency(int chan, enum nl80211_band band)
 			return 5000 + chan * 5;
 		break;
 	case NL80211_BAND_60GHZ:
-		if (chan < 5)
+		if (chan < 7)
 			return 56160 + chan * 2160;
 		break;
 	default:
@@ -109,7 +109,7 @@ int ieee80211_frequency_to_channel(int freq)
 		return (freq - 4000) / 5;
 	else if (freq <= 45000) /* DMG band lower limit */
 		return (freq - 5000) / 5;
-	else if (freq >= 58320 && freq <= 64800)
+	else if (freq >= 58320 && freq <= 70200)
 		return (freq - 56160) / 2160;
 	else
 		return 0;
@@ -1568,7 +1568,7 @@ bool ieee80211_chandef_to_operating_class(struct cfg80211_chan_def *chandef,
 	}
 
 	/* 56.16 GHz, channel 1..4 */
-	if (freq >= 56160 + 2160 * 1 && freq <= 56160 + 2160 * 4) {
+	if (freq >= 56160 + 2160 * 1 && freq <= 56160 + 2160 * 6) {
 		if (chandef->width >= NL80211_CHAN_WIDTH_40)
 			return false;