2 files changed, 202 insertions, 163 deletions

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 277488176a44..460da54a0019 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -69,95 +69,6 @@
  * not do so then mac80211 may add this under certain circumstances.
  */
 
-#define IEEE80211_CHAN_W_SCAN 0x00000001
-#define IEEE80211_CHAN_W_ACTIVE_SCAN 0x00000002
-#define IEEE80211_CHAN_W_IBSS 0x00000004
-
-/* Channel information structure. Low-level driver is expected to fill in chan,
- * freq, and val fields. Other fields will be filled in by 80211.o based on
- * hostapd information and low-level driver does not need to use them. The
- * limits for each channel will be provided in 'struct ieee80211_conf' when
- * configuring the low-level driver with hw->config callback. If a device has
- * a default regulatory domain, IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED
- * can be set to let the driver configure all fields */
-struct ieee80211_channel {
-        short chan; /* channel number (IEEE 802.11) */
-        short freq; /* frequency in MHz */
-        int val; /* hw specific value for the channel */
-        int flag; /* flag for hostapd use (IEEE80211_CHAN_*) */
-        unsigned char power_level;
-        unsigned char antenna_max;
-};
-
-#define IEEE80211_RATE_ERP 0x00000001
-#define IEEE80211_RATE_BASIC 0x00000002
-#define IEEE80211_RATE_PREAMBLE2 0x00000004
-#define IEEE80211_RATE_SUPPORTED 0x00000010
-#define IEEE80211_RATE_OFDM 0x00000020
-#define IEEE80211_RATE_CCK 0x00000040
-#define IEEE80211_RATE_MANDATORY 0x00000100
-
-#define IEEE80211_RATE_CCK_2 (IEEE80211_RATE_CCK | IEEE80211_RATE_PREAMBLE2)
-#define IEEE80211_RATE_MODULATION(f) \
-        (f & (IEEE80211_RATE_CCK | IEEE80211_RATE_OFDM))
-
-/* Low-level driver should set PREAMBLE2, OFDM and CCK flags.
- * BASIC, SUPPORTED, ERP, and MANDATORY flags are set in 80211.o based on the
- * configuration. */
-struct ieee80211_rate {
-        int rate; /* rate in 100 kbps */
-        int val; /* hw specific value for the rate */
-        int flags; /* IEEE80211_RATE_ flags */
-        int val2; /* hw specific value for the rate when using short preamble
-                   * (only when IEEE80211_RATE_PREAMBLE2 flag is set, i.e., for
-                   * 2, 5.5, and 11 Mbps) */
-        signed char min_rssi_ack;
-        unsigned char min_rssi_ack_delta;
-
-        /* following fields are set by 80211.o and need not be filled by the
-         * low-level driver */
-        int rate_inv; /* inverse of the rate (LCM(all rates) / rate) for
-                       * optimizing channel utilization estimates */
-};
-
-/**
- * enum ieee80211_phymode - PHY modes
- *
- * @MODE_IEEE80211A: 5GHz as defined by 802.11a/802.11h
- * @MODE_IEEE80211B: 2.4 GHz as defined by 802.11b
- * @MODE_IEEE80211G: 2.4 GHz as defined by 802.11g (with OFDM),
- *      backwards compatible with 11b mode
- * @NUM_IEEE80211_MODES: internal
- */
-enum ieee80211_phymode {
-        MODE_IEEE80211A,
-        MODE_IEEE80211B,
-        MODE_IEEE80211G,
-
-        /* keep last */
-        NUM_IEEE80211_MODES
-};
-
-/**
- * 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 {
-        u8 ht_supported;
-        u16 cap; /* use IEEE80211_HT_CAP_ */
-        u8 ampdu_factor;
-        u8 ampdu_density;
-        u8 supp_mcs_set[16];
-};
-
 /**
  * struct ieee80211_ht_bss_info - describing BSS's HT characteristics
  *
@@ -175,30 +86,6 @@ struct ieee80211_ht_bss_info {
 };
 
 /**
- * struct ieee80211_hw_mode - PHY mode definition
- *
- * This structure describes the capabilities supported by the device
- * in a single PHY mode.
- *
- * @list: internal
- * @channels: pointer to array of supported channels
- * @rates: pointer to array of supported bitrates
- * @mode: the PHY mode for this definition
- * @num_channels: number of supported channels
- * @num_rates: number of supported bitrates
- * @ht_info: PHY's 802.11n HT abilities for this mode
- */
-struct ieee80211_hw_mode {
-        struct list_head list;
-        struct ieee80211_channel *channels;
-        struct ieee80211_rate *rates;
-        enum ieee80211_phymode mode;
-        int num_channels;
-        int num_rates;
-        struct ieee80211_ht_info ht_info;
-};
-
-/**
  * struct ieee80211_tx_queue_params - transmit queue configuration
  *
  * The information provided in this structure is required for QoS
@@ -320,11 +207,13 @@ struct ieee80211_bss_conf {
 
 struct ieee80211_tx_control {
         struct ieee80211_vif *vif;
-        int tx_rate; /* Transmit rate, given as the hw specific value for the
-                      * rate (from struct ieee80211_rate) */
-        int rts_cts_rate; /* Transmit rate for RTS/CTS frame, given as the hw
-                           * specific value for the rate (from
-                           * struct ieee80211_rate) */
+        struct ieee80211_rate *tx_rate;
+
+        /* Transmit rate for RTS/CTS frame */
+        struct ieee80211_rate *rts_cts_rate;
+
+        /* retry rate for the last retries */
+        struct ieee80211_rate *alt_retry_rate;
 
 #define IEEE80211_TXCTL_REQ_TX_STATUS   (1<<0)/* request TX status callback for
                                                 * this frame */
@@ -343,6 +232,7 @@ struct ieee80211_tx_control {
 #define IEEE80211_TXCTL_REQUEUE         (1<<7)
 #define IEEE80211_TXCTL_FIRST_FRAGMENT  (1<<8) /* this is a first fragment of
                                                 * the frame */
+#define IEEE80211_TXCTL_SHORT_PREAMBLE  (1<<9)
 #define IEEE80211_TXCTL_LONG_RETRY_LIMIT (1<<10) /* this frame should be send
                                                   * using the through
                                                   * set_retry_limit configured
@@ -359,20 +249,11 @@ struct ieee80211_tx_control {
         u8 retry_limit;         /* 1 = only first attempt, 2 = one retry, ..
                                  * This could be used when set_retry_limit
                                  * is not implemented by the driver */
-        u8 power_level;         /* per-packet transmit power level, in dBm */
         u8 antenna_sel_tx;      /* 0 = default/diversity, 1 = Ant0, 2 = Ant1 */
         u8 icv_len;             /* length of the ICV/MIC field in octets */
         u8 iv_len;              /* length of the IV field in octets */
         u8 queue;               /* hardware queue to use for this frame;
                                  * 0 = highest, hw->queues-1 = lowest */
-        struct ieee80211_rate *rate;            /* internal 80211.o rate */
-        struct ieee80211_rate *rts_rate;        /* internal 80211.o rate
-                                                 * for RTS/CTS */
-        int alt_retry_rate; /* retry rate for the last retries, given as the
-                             * hw specific value for the rate (from
-                             * struct ieee80211_rate). To be used to limit
-                             * packet dropping when probing higher rates, if hw
-                             * supports multiple retry rates. -1 = not used */
         int type;       /* internal */
 };
 
@@ -415,26 +296,24 @@ enum mac80211_rx_flags {
  * supported by hardware) to the 802.11 code with each received
  * frame.
  * @mactime: MAC timestamp as defined by 802.11
+ * @band: the active band when this frame was received
  * @freq: frequency the radio was tuned to when receiving this frame, in MHz
- * @channel: channel the radio was tuned to
- * @phymode: active PHY mode
  * @ssi: signal strength when receiving this frame
  * @signal: used as 'qual' in statistics reporting
  * @noise: PHY noise when receiving this frame
  * @antenna: antenna used
- * @rate: data rate
+ * @rate_idx: index of data rate into band's supported rates
  * @flag: %RX_FLAG_*
  */
 struct ieee80211_rx_status {
         u64 mactime;
+        enum ieee80211_band band;
         int freq;
-        int channel;
-        enum ieee80211_phymode phymode;
         int ssi;
         int signal;
         int noise;
         int antenna;
-        int rate;
+        int rate_idx;
         int flag;
 };
 
@@ -509,41 +388,30 @@ enum ieee80211_conf_flags {
  *
  * @radio_enabled: when zero, driver is required to switch off the radio.
  *      TODO make a flag
- * @channel: IEEE 802.11 channel number
- * @freq: frequency in MHz
- * @channel_val: hardware specific channel value for the channel
- * @phymode: PHY mode to activate (REMOVE)
- * @chan: channel to switch to, pointer to the channel information
- * @mode: pointer to mode definition
- * @regulatory_domain: ??
  * @beacon_int: beacon interval (TODO make interface config)
  * @flags: configuration flags defined above
- * @power_level: transmit power limit for current regulatory domain in dBm
- * @antenna_max: maximum antenna gain
+ * @power_level: requested transmit power (in dBm)
+ * @max_antenna_gain: maximum antenna gain (in dBi)
  * @antenna_sel_tx: transmit antenna selection, 0: default/diversity,
  *      1/2: antenna 0/1
  * @antenna_sel_rx: receive antenna selection, like @antenna_sel_tx
  * @ht_conf: describes current self configuration of 802.11n HT capabilies
  * @ht_bss_conf: describes current BSS configuration of 802.11n HT parameters
+ * @channel: the channel to tune to
  */
 struct ieee80211_conf {
-        int channel;                    /* IEEE 802.11 channel number */
-        int freq;                       /* MHz */
-        int channel_val;                /* hw specific value for the channel */
-
-        enum ieee80211_phymode phymode;
-        struct ieee80211_channel *chan;
-        struct ieee80211_hw_mode *mode;
         unsigned int regulatory_domain;
         int radio_enabled;
 
         int beacon_int;
         u32 flags;
-        u8 power_level;
-        u8 antenna_max;
+        int power_level;
+        int max_antenna_gain;
         u8 antenna_sel_tx;
         u8 antenna_sel_rx;
 
+        struct ieee80211_channel *channel;
+
         struct ieee80211_ht_info ht_conf;
         struct ieee80211_ht_bss_info ht_bss_conf;
 };
@@ -764,15 +632,19 @@ enum sta_notify_cmd {
  *      %IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE is also not set because
  *      otherwise the stack will not know when the DTIM beacon was sent.
  *
- * @IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED:
- *      Channels are already configured to the default regulatory domain
- *      specified in the device's EEPROM
+ * @IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE:
+ *      Hardware is not capable of short slot operation on the 2.4 GHz band.
+ *
+ * @IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE:
+ *      Hardware is not capable of receiving frames with short preamble on
+ *      the 2.4 GHz band.
  */
 enum ieee80211_hw_flags {
         IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE           = 1<<0,
         IEEE80211_HW_RX_INCLUDES_FCS                    = 1<<1,
         IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING        = 1<<2,
-        IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED      = 1<<3,
+        IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE          = 1<<3,
+        IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE      = 1<<4,
 };
 
 /**
@@ -784,7 +656,8 @@ enum ieee80211_hw_flags {
  * @wiphy: This points to the &struct wiphy allocated for this
  *      802.11 PHY. You must fill in the @perm_addr and @dev
  *      members of this structure using SET_IEEE80211_DEV()
- *      and SET_IEEE80211_PERM_ADDR().
+ *      and SET_IEEE80211_PERM_ADDR(). Additionally, all supported
+ *      bands (with channels, bitrates) are registered here.
  *
  * @conf: &struct ieee80211_conf, device configuration, don't use.
  *
@@ -1062,7 +935,9 @@ enum ieee80211_ampdu_mlme_action {
  *      given local_address is enabled.
  *
  * @hw_scan: Ask the hardware to service the scan request, no need to start
- *      the scan state machine in stack.
+ *      the scan state machine in stack. The scan must honour the channel
+ *      configuration done by the regulatory agent in the wiphy's registered
+ *      bands.
  *
  * @get_stats: return low-level statistics
  *
@@ -1284,10 +1159,6 @@ static inline char *ieee80211_get_radio_led_name(struct ieee80211_hw *hw)
 #endif
 }
 
-/* Register a new hardware PHYMODE capability to the stack. */
-int ieee80211_register_hwmode(struct ieee80211_hw *hw,
-                              struct ieee80211_hw_mode *mode);
-
 /**
  * ieee80211_unregister_hw - Unregister a hardware device
  *
@@ -1461,7 +1332,7 @@ __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw,
  * @hw: pointer obtained from ieee80211_alloc_hw().
  * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf.
  * @frame_len: the length of the frame.
- * @rate: the rate (in 100kbps) at which the frame is going to be transmitted.
+ * @rate: the rate at which the frame is going to be transmitted.
  *
  * Calculate the duration field of some generic frame, given its
  * length and transmission rate (in 100kbps).
@@ -1469,7 +1340,7 @@ __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw,
 __le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw,
                                         struct ieee80211_vif *vif,
                                         size_t frame_len,
-                                        int rate);
+                                        struct ieee80211_rate *rate);
 
 /**
  * ieee80211_get_buffered_bc - accessing buffered broadcast and multicast frames
diff --git a/include/net/wireless.h b/include/net/wireless.h
index d30c4ba8fd99..c7f805ee5545 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 +294,14 @@ 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);
+
 #endif /* __NET_WIRELESS_H */