rt2x00: Implement support for 802.11n

Extend rt2x00lib capabilities to support 802.11n,
it still lacks aggregation support, but that can
be added in the future.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 7c5cbb1..ebe5f27 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -366,6 +366,7 @@
  *	for @tx_power_a, @tx_power_bg and @channels.
  * @channels: Device/chipset specific channel values (See &struct rf_channel).
  * @channels_info: Additional information for channels (See &struct channel_info).
+ * @ht: Driver HT Capabilities (See &ieee80211_sta_ht_cap).
  */
 struct hw_mode_spec {
 	unsigned int supported_bands;
@@ -379,6 +380,8 @@
 	unsigned int num_channels;
 	const struct rf_channel *channels;
 	const struct channel_info *channels_info;
+
+	struct ieee80211_sta_ht_cap ht;
 };
 
 /*
@@ -616,6 +619,7 @@
 	CONFIG_EXTERNAL_LNA_BG,
 	CONFIG_DOUBLE_ANTENNA,
 	CONFIG_DISABLE_LINK_TUNING,
+	CONFIG_CHANNEL_HT40,
 };
 
 /*
@@ -788,6 +792,13 @@
 	u8 freq_offset;
 
 	/*
+	 * Calibration information (for rt2800usb & rt2800pci).
+	 * [0] -> BW20
+	 * [1] -> BW40
+	 */
+	u8 calibration[2];
+
+	/*
 	 * Low level statistics which will have
 	 * to be kept up to date while device is running.
 	 */