cfg80211 API for channels/bitrates, mac80211 and driver conversion

This patch creates new cfg80211 wiphy API for channel and bitrate
registration and converts mac80211 and drivers to the new API. The
old mac80211 API is completely ripped out. All drivers (except ath5k)
are updated to the new API, in many cases I expect that optimisations
can be done.

Along with the regulatory code I've also ripped out the
IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED flag, I believe it to be
unnecessary if the hardware simply gives us whatever channels it wants
to support and we then enable/disable them as required, which is pretty
much required for travelling.

Additionally, the patch adds proper "basic" rate handling for STA
mode interface, AP mode interface will have to have new API added
to allow userspace to set the basic rate set, currently it'll be
empty... However, the basic rate handling will need to be moved to
the BSS conf stuff.

I do expect there to be bugs in this, especially wrt. transmit
power handling where I'm basically clueless about how it should work.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 15 insertions, 18 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2x00config.c b/drivers/net/wireless/rt2x00/rt2x00config.c
index 20231e0c53f..9fba485a40a 100644
--- a/drivers/net/wireless/rt2x00/rt2x00config.c
+++ b/drivers/net/wireless/rt2x00/rt2x00config.c
@@ -152,7 +152,7 @@ void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
 		      struct ieee80211_conf *conf, const int force_config)
 {
 	struct rt2x00lib_conf libconf;
-	struct ieee80211_hw_mode *mode;
+	struct ieee80211_supported_band *band;
 	struct ieee80211_rate *rate;
 	struct antenna_setup *default_ant = &rt2x00dev->default_ant;
 	struct antenna_setup *active_ant = &rt2x00dev->link.ant.active;
@@ -172,9 +172,9 @@ void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
 	 * Check which configuration options have been
 	 * updated and should be send to the device.
 	 */
-	if (rt2x00dev->rx_status.phymode != conf->phymode)
+	if (rt2x00dev->rx_status.band != conf->channel->band)
 		flags |= CONFIG_UPDATE_PHYMODE;
-	if (rt2x00dev->rx_status.channel != conf->channel)
+	if (rt2x00dev->rx_status.freq != conf->channel->center_freq)
 		flags |= CONFIG_UPDATE_CHANNEL;
 	if (rt2x00dev->tx_power != conf->power_level)
 		flags |= CONFIG_UPDATE_TXPOWER;
@@ -229,33 +229,31 @@ config:
 	memset(&libconf, 0, sizeof(libconf));
 
 	if (flags & CONFIG_UPDATE_PHYMODE) {
-		switch (conf->phymode) {
-		case MODE_IEEE80211A:
+		switch (conf->channel->band) {
+		case IEEE80211_BAND_5GHZ:
 			libconf.phymode = HWMODE_A;
 			break;
-		case MODE_IEEE80211B:
-			libconf.phymode = HWMODE_B;
-			break;
-		case MODE_IEEE80211G:
+		case IEEE80211_BAND_2GHZ:
+			/* Uh oh. what about B? */
 			libconf.phymode = HWMODE_G;
 			break;
 		default:
 			ERROR(rt2x00dev,
 			      "Attempt to configure unsupported mode (%d)"
-			      "Defaulting to 802.11b", conf->phymode);
+			      "Defaulting to 802.11b", conf->channel->band);
 			libconf.phymode = HWMODE_B;
 		}
 
-		mode = &rt2x00dev->hwmodes[libconf.phymode];
-		rate = &mode->rates[mode->num_rates - 1];
+		band = &rt2x00dev->bands[conf->channel->band];
+		rate = &band->bitrates[band->n_bitrates - 1];
 
 		libconf.basic_rates =
-		    DEVICE_GET_RATE_FIELD(rate->val, RATEMASK) & DEV_BASIC_RATEMASK;
+		    DEVICE_GET_RATE_FIELD(rate->hw_value, RATEMASK) & DEV_BASIC_RATEMASK;
 	}
 
 	if (flags & CONFIG_UPDATE_CHANNEL) {
 		memcpy(&libconf.rf,
-		       &rt2x00dev->spec.channels[conf->channel_val],
+		       &rt2x00dev->spec.channels[conf->channel->hw_value],
 		       sizeof(libconf.rf));
 	}
 
@@ -301,12 +299,11 @@ config:
 		rt2x00lib_reset_link_tuner(rt2x00dev);
 
 	if (flags & CONFIG_UPDATE_PHYMODE) {
-		rt2x00dev->curr_hwmode = libconf.phymode;
-		rt2x00dev->rx_status.phymode = conf->phymode;
+		rt2x00dev->curr_band = conf->channel->band;
+		rt2x00dev->rx_status.band = conf->channel->band;
 	}
 
-	rt2x00dev->rx_status.freq = conf->freq;
-	rt2x00dev->rx_status.channel = conf->channel;
+	rt2x00dev->rx_status.freq = conf->channel->center_freq;
 	rt2x00dev->tx_power = conf->power_level;
 
 	if (flags & CONFIG_UPDATE_ANTENNA) {