1 files changed, 186 insertions, 0 deletions

diff --git a/include/net/wireless.h b/include/net/wireless.h
index d30c4ba8fd99..667b4080d30f 100644
--- a/include/net/wireless.h
+++ b/include/net/wireless.h
@@ -13,6 +13,162 @@
 #include <net/cfg80211.h>
 
 /**
+ * enum ieee80211_band - supported frequency bands
+ *
+ * The bands are assigned this way because the supported
+ * bitrates differ in these bands.
+ *
+ * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band
+ * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7)
+ */
+enum ieee80211_band {
+        IEEE80211_BAND_2GHZ,
+        IEEE80211_BAND_5GHZ,
+
+        /* keep last */
+        IEEE80211_NUM_BANDS
+};
+
+/**
+ * enum ieee80211_channel_flags - channel flags
+ *
+ * Channel flags set by the regulatory control code.
+ *
+ * @IEEE80211_CHAN_DISABLED: This channel is disabled.
+ * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted
+ *      on this channel.
+ * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel.
+ * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
+ */
+enum ieee80211_channel_flags {
+        IEEE80211_CHAN_DISABLED         = 1<<0,
+        IEEE80211_CHAN_PASSIVE_SCAN     = 1<<1,
+        IEEE80211_CHAN_NO_IBSS          = 1<<2,
+        IEEE80211_CHAN_RADAR            = 1<<3,
+};
+
+/**
+ * struct ieee80211_channel - channel definition
+ *
+ * This structure describes a single channel for use
+ * with cfg80211.
+ *
+ * @center_freq: center frequency in MHz
+ * @hw_value: hardware-specific value for the channel
+ * @flags: channel flags from &enum ieee80211_channel_flags.
+ * @orig_flags: channel flags at registration time, used by regulatory
+ *      code to support devices with additional restrictions
+ * @band: band this channel belongs to.
+ * @max_antenna_gain: maximum antenna gain in dBi
+ * @max_power: maximum transmission power (in dBm)
+ * @orig_mag: internal use
+ * @orig_mpwr: internal use
+ */
+struct ieee80211_channel {
+        enum ieee80211_band band;
+        u16 center_freq;
+        u16 hw_value;
+        u32 flags;
+        int max_antenna_gain;
+        int max_power;
+        u32 orig_flags;
+        int orig_mag, orig_mpwr;
+};
+
+/**
+ * enum ieee80211_rate_flags - rate flags
+ *
+ * Hardware/specification flags for rates. These are structured
+ * in a way that allows using the same bitrate structure for
+ * different bands/PHY modes.
+ *
+ * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
+ *      preamble on this bitrate; only relevant in 2.4GHz band and
+ *      with CCK rates.
+ * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
+ *      when used with 802.11a (on the 5 GHz band); filled by the
+ *      core code when registering the wiphy.
+ * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
+ *      when used with 802.11b (on the 2.4 GHz band); filled by the
+ *      core code when registering the wiphy.
+ * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
+ *      when used with 802.11g (on the 2.4 GHz band); filled by the
+ *      core code when registering the wiphy.
+ * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
+ */
+enum ieee80211_rate_flags {
+        IEEE80211_RATE_SHORT_PREAMBLE   = 1<<0,
+        IEEE80211_RATE_MANDATORY_A      = 1<<1,
+        IEEE80211_RATE_MANDATORY_B      = 1<<2,
+        IEEE80211_RATE_MANDATORY_G      = 1<<3,
+        IEEE80211_RATE_ERP_G            = 1<<4,
+};
+
+/**
+ * struct ieee80211_rate - bitrate definition
+ *
+ * This structure describes a bitrate that an 802.11 PHY can
+ * operate with. The two values @hw_value and @hw_value_short
+ * are only for driver use when pointers to this structure are
+ * passed around.
+ *
+ * @flags: rate-specific flags
+ * @bitrate: bitrate in units of 100 Kbps
+ * @hw_value: driver/hardware value for this rate
+ * @hw_value_short: driver/hardware value for this rate when
+ *      short preamble is used
+ */
+struct ieee80211_rate {
+        u32 flags;
+        u16 bitrate;
+        u16 hw_value, hw_value_short;
+};
+
+/**
+ * struct ieee80211_ht_info - describing STA's HT capabilities
+ *
+ * This structure describes most essential parameters needed
+ * to describe 802.11n HT capabilities for an STA.
+ *
+ * @ht_supported: is HT supported by STA, 0: no, 1: yes
+ * @cap: HT capabilities map as described in 802.11n spec
+ * @ampdu_factor: Maximum A-MPDU length factor
+ * @ampdu_density: Minimum A-MPDU spacing
+ * @supp_mcs_set: Supported MCS set as described in 802.11n spec
+ */
+struct ieee80211_ht_info {
+        u16 cap; /* use IEEE80211_HT_CAP_ */
+        u8 ht_supported;
+        u8 ampdu_factor;
+        u8 ampdu_density;
+        u8 supp_mcs_set[16];
+};
+
+/**
+ * struct ieee80211_supported_band - frequency band definition
+ *
+ * This structure describes a frequency band a wiphy
+ * is able to operate in.
+ *
+ * @channels: Array of channels the hardware can operate in
+ *      in this band.
+ * @band: the band this structure represents
+ * @n_channels: Number of channels in @channels
+ * @bitrates: Array of bitrates the hardware can operate with
+ *      in this band. Must be sorted to give a valid "supported
+ *      rates" IE, i.e. CCK rates first, then OFDM.
+ * @n_bitrates: Number of bitrates in @bitrates
+ */
+struct ieee80211_supported_band {
+        struct ieee80211_channel *channels;
+        struct ieee80211_rate *bitrates;
+        enum ieee80211_band band;
+        int n_channels;
+        int n_bitrates;
+        struct ieee80211_ht_info ht_info;
+};
+
+/**
  * struct wiphy - wireless hardware description
  * @idx: the wiphy index assigned to this item
  * @class_dev: the class device representing /sys/class/ieee80211/<wiphy-name>
@@ -30,6 +186,8 @@ struct wiphy {
          * help determine whether you own this wiphy or not. */
         void *privid;
 
+        struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS];
+
         /* fields below are read-only, assigned by cfg80211 */
 
         /* the item in /sys/class/ieee80211/ points to this,
@@ -136,4 +294,32 @@ extern void wiphy_unregister(struct wiphy *wiphy);
  */
 extern void wiphy_free(struct wiphy *wiphy);
 
+/**
+ * ieee80211_channel_to_frequency - convert channel number to frequency
+ */
+extern int ieee80211_channel_to_frequency(int chan);
+
+/**
+ * ieee80211_frequency_to_channel - convert frequency to channel number
+ */
+extern int ieee80211_frequency_to_channel(int freq);
+
+/*
+ * Name indirection necessary because the ieee80211 code also has
+ * a function named "ieee80211_get_channel", so if you include
+ * cfg80211's header file you get cfg80211's version, if you try
+ * to include both header files you'll (rightfully!) get a symbol
+ * clash.
+ */
+extern struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy,
+                                                         int freq);
+
+/**
+ * ieee80211_get_channel - get channel struct from wiphy for specified frequency
+ */
+static inline struct ieee80211_channel *
+ieee80211_get_channel(struct wiphy *wiphy, int freq)
+{
+        return __ieee80211_get_channel(wiphy, freq);
+}
 #endif /* __NET_WIRELESS_H */