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authorDavid S. Miller <davem@davemloft.net>2008-02-29 13:41:25 -0800
committerDavid S. Miller <davem@davemloft.net>2008-02-29 13:41:25 -0800
commit4a80f2788952055a627f2093a0174537d70aec1b (patch)
tree411c8ec555fe85cf9faa9da90e62ab781b33661c /include/net
parent03a64c93b68e1eff299b9bbbb0d13105171cddc4 (diff)
parente4861829072c61883114c64a3af61f305a789ff0 (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/linville/wireless-2.6.26
Diffstat (limited to 'include/net')
-rw-r--r--include/net/cfg80211.h24
-rw-r--r--include/net/mac80211.h384
-rw-r--r--include/net/wireless.h168
3 files changed, 384 insertions, 192 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index bcc480b8892..ab4caf63954 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -163,6 +163,26 @@ struct station_stats {
u32 tx_bytes;
};
+/**
+ * enum monitor_flags - monitor flags
+ *
+ * Monitor interface configuration flags. Note that these must be the bits
+ * according to the nl80211 flags.
+ *
+ * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
+ * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
+ * @MONITOR_FLAG_CONTROL: pass control frames
+ * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
+ * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
+ */
+enum monitor_flags {
+ MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL,
+ MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL,
+ MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL,
+ MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS,
+ MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES,
+};
+
/* from net/wireless.h */
struct wiphy;
@@ -213,10 +233,10 @@ struct wiphy;
*/
struct cfg80211_ops {
int (*add_virtual_intf)(struct wiphy *wiphy, char *name,
- enum nl80211_iftype type);
+ enum nl80211_iftype type, u32 *flags);
int (*del_virtual_intf)(struct wiphy *wiphy, int ifindex);
int (*change_virtual_intf)(struct wiphy *wiphy, int ifindex,
- enum nl80211_iftype type);
+ enum nl80211_iftype type, u32 *flags);
int (*add_key)(struct wiphy *wiphy, struct net_device *netdev,
u8 key_index, u8 *mac_addr,
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 9083bafb63c..7a80c398123 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -38,7 +38,11 @@
* called in hardware interrupt context. The low-level driver must not call any
* other functions in hardware interrupt context. If there is a need for such
* call, the low-level driver should first ACK the interrupt and perform the
- * IEEE 802.11 code call after this, e.g. from a scheduled workqueue function.
+ * IEEE 802.11 code call after this, e.g. from a scheduled workqueue or even
+ * tasklet function.
+ *
+ * NOTE: If the driver opts to use the _irqsafe() functions, it may not also
+ * use the non-irqsafe functions!
*/
/**
@@ -69,95 +73,6 @@
* 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
*
@@ -175,46 +90,22 @@ 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
- * transmit queue configuration.
+ * transmit queue configuration. Cf. IEEE 802.11 7.3.2.29.
*
* @aifs: arbitration interface space [0..255, -1: use default]
* @cw_min: minimum contention window [will be a value of the form
* 2^n-1 in the range 1..1023; 0: use default]
* @cw_max: maximum contention window [like @cw_min]
- * @burst_time: maximum burst time in units of 0.1ms, 0 meaning disabled
+ * @txop: maximum burst time in units of 32 usecs, 0 meaning disabled
*/
struct ieee80211_tx_queue_params {
- int aifs;
- int cw_min;
- int cw_max;
- int burst_time;
+ s16 aifs;
+ u16 cw_min;
+ u16 cw_max;
+ u16 txop;
};
/**
@@ -246,6 +137,7 @@ struct ieee80211_tx_queue_stats_data {
* @IEEE80211_TX_QUEUE_AFTER_BEACON: transmit queue for frames to be
* sent after a beacon
* @IEEE80211_TX_QUEUE_BEACON: transmit queue for beacon frames
+ * @NUM_TX_DATA_QUEUES_AMPDU: adding more queues for A-MPDU
*/
enum ieee80211_tx_queue {
IEEE80211_TX_QUEUE_DATA0,
@@ -261,11 +153,12 @@ enum ieee80211_tx_queue {
* this struct need to have fixed values. As soon as it is removed, we can
* fix these entries. */
IEEE80211_TX_QUEUE_AFTER_BEACON = 6,
- IEEE80211_TX_QUEUE_BEACON = 7
+ IEEE80211_TX_QUEUE_BEACON = 7,
+ NUM_TX_DATA_QUEUES_AMPDU = 16
};
struct ieee80211_tx_queue_stats {
- struct ieee80211_tx_queue_stats_data data[NUM_TX_DATA_QUEUES];
+ struct ieee80211_tx_queue_stats_data data[NUM_TX_DATA_QUEUES_AMPDU];
};
struct ieee80211_low_level_stats {
@@ -318,11 +211,13 @@ 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 */
@@ -337,10 +232,12 @@ struct ieee80211_tx_control {
#define IEEE80211_TXCTL_NO_ACK (1<<4) /* tell the low level not to
* wait for an ack */
#define IEEE80211_TXCTL_RATE_CTRL_PROBE (1<<5)
-#define IEEE80211_TXCTL_CLEAR_DST_MASK (1<<6)
+#define IEEE80211_TXCTL_CLEAR_PS_FILT (1<<6) /* clear powersave filter
+ * for destination station */
#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
@@ -348,6 +245,8 @@ struct ieee80211_tx_control {
#define IEEE80211_TXCTL_EAPOL_FRAME (1<<11) /* internal to mac80211 */
#define IEEE80211_TXCTL_SEND_AFTER_DTIM (1<<12) /* send this frame after DTIM
* beacon */
+#define IEEE80211_TXCTL_AMPDU (1<<13) /* this frame should be sent
+ * as part of an A-MPDU */
u32 flags; /* tx control flags defined
* above */
u8 key_idx; /* keyidx from hw->set_key(), undefined if
@@ -355,20 +254,11 @@ 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 */
};
@@ -391,7 +281,8 @@ struct ieee80211_tx_control {
* @RX_FLAG_FAILED_PLCP_CRC: Set this flag if the PCLP check failed on
* the frame.
* @RX_FLAG_TSFT: The timestamp passed in the RX status (@mactime field)
- * is valid.
+ * is valid. This is useful in monitor mode and necessary for beacon frames
+ * to enable IBSS merging.
*/
enum mac80211_rx_flags {
RX_FLAG_MMIC_ERROR = 1<<0,
@@ -410,27 +301,26 @@ enum mac80211_rx_flags {
* The low-level driver should provide this information (the subset
* supported by hardware) to the 802.11 code with each received
* frame.
- * @mactime: MAC timestamp as defined by 802.11
+ * @mactime: value in microseconds of the 64-bit Time Synchronization Function
+ * (TSF) timer when the first data symbol (MPDU) arrived at the hardware.
+ * @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;
};
@@ -441,12 +331,14 @@ struct ieee80211_rx_status {
*
* @IEEE80211_TX_STATUS_TX_FILTERED: The frame was not transmitted
* because the destination STA was in powersave mode.
- *
* @IEEE80211_TX_STATUS_ACK: Frame was acknowledged
+ * @IEEE80211_TX_STATUS_AMPDU: The frame was aggregated, so status
+ * is for the whole aggregation.
*/
enum ieee80211_tx_status_flags {
IEEE80211_TX_STATUS_TX_FILTERED = 1<<0,
IEEE80211_TX_STATUS_ACK = 1<<1,
+ IEEE80211_TX_STATUS_AMPDU = 1<<2,
};
/**
@@ -457,24 +349,25 @@ enum ieee80211_tx_status_flags {
*
* @control: a copy of the &struct ieee80211_tx_control passed to the driver
* in the tx() callback.
- *
* @flags: transmit status flags, defined above
- *
- * @ack_signal: signal strength of the ACK frame
- *
+ * @retry_count: number of retries
* @excessive_retries: set to 1 if the frame was retried many times
* but not acknowledged
- *
- * @retry_count: number of retries
- *
+ * @ampdu_ack_len: number of aggregated frames.
+ * relevant only if IEEE80211_TX_STATUS_AMPDU was set.
+ * @ampdu_ack_map: block ack bit map for the aggregation.
+ * relevant only if IEEE80211_TX_STATUS_AMPDU was set.
+ * @ack_signal: signal strength of the ACK frame
* @queue_length: ?? REMOVE
* @queue_number: ?? REMOVE
*/
struct ieee80211_tx_status {
struct ieee80211_tx_control control;
u8 flags;
- bool excessive_retries;
u8 retry_count;
+ bool excessive_retries;
+ u8 ampdu_ack_len;
+ u64 ampdu_ack_map;
int ack_signal;
int queue_length;
int queue_number;
@@ -502,41 +395,30 @@ 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;
};
@@ -757,15 +639,19 @@ 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,
};
/**
@@ -777,7 +663,8 @@ 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.
*
@@ -913,8 +800,18 @@ static inline void SET_IEEE80211_PERM_ADDR(struct ieee80211_hw *hw, u8 *addr)
* parameter to see whether multicast frames should be accepted
* or dropped.
*
- * All unsupported flags in @total_flags must be cleared, i.e. you
- * should clear all bits except those you honoured.
+ * All unsupported flags in @total_flags must be cleared.
+ * Hardware does not support a flag if it is incapable of _passing_
+ * the frame to the stack. Otherwise the driver must ignore
+ * the flag, but not clear it.
+ * You must _only_ clear the flag (announce no support for the
+ * flag to mac80211) if you are not able to pass the packet type
+ * to the stack (so the hardware always filters it).
+ * So for example, you should clear @FIF_CONTROL, if your hardware
+ * always filters control frames. If your hardware always passes
+ * control frames to the kernel and is incapable of filtering them,
+ * you do _not_ clear the @FIF_CONTROL flag.
+ * This rule applies to all other FIF flags as well.
*/
/**
@@ -967,10 +864,14 @@ enum ieee80211_filter_flags {
* &struct ieee80211_ops to indicate which action is needed.
* @IEEE80211_AMPDU_RX_START: start Rx aggregation
* @IEEE80211_AMPDU_RX_STOP: stop Rx aggregation
+ * @IEEE80211_AMPDU_TX_START: start Tx aggregation
+ * @IEEE80211_AMPDU_TX_STOP: stop Tx aggregation
*/
enum ieee80211_ampdu_mlme_action {
IEEE80211_AMPDU_RX_START,
IEEE80211_AMPDU_RX_STOP,
+ IEEE80211_AMPDU_TX_START,
+ IEEE80211_AMPDU_TX_STOP,
};
/**
@@ -1051,7 +952,9 @@ 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
*
@@ -1111,7 +1014,8 @@ enum ieee80211_ampdu_mlme_action {
* The RA/TID combination determines the destination and TID we want
* the ampdu action to be performed for. The action is defined through
* ieee80211_ampdu_mlme_action. Starting sequence number (@ssn)
- * is the first frame we expect to perform the action on.
+ * is the first frame we expect to perform the action on. notice
+ * that TX/RX_STOP can pass NULL for this parameter.
*/
struct ieee80211_ops {
int (*tx)(struct ieee80211_hw *hw, struct sk_buff *skb,
@@ -1162,7 +1066,7 @@ struct ieee80211_ops {
int (*conf_ht)(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
int (*ampdu_action)(struct ieee80211_hw *hw,
enum ieee80211_ampdu_mlme_action action,
- const u8 *ra, u16 tid, u16 ssn);
+ const u8 *addr, u16 tid, u16 *ssn);
};
/**
@@ -1272,10 +1176,6 @@ 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
*
@@ -1308,7 +1208,10 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
* buffer in @skb must start with an IEEE 802.11 header or a radiotap
* header if %RX_FLAG_RADIOTAP is set in the @status flags.
*
- * This function may not be called in IRQ context.
+ * This function may not be called in IRQ context. Calls to this function
+ * for a single hardware must be synchronized against each other. Calls
+ * to this function and ieee80211_rx_irqsafe() may not be mixed for a
+ * single hardware.
*
* @hw: the hardware this frame came in on
* @skb: the buffer to receive, owned by mac80211 after this call
@@ -1325,7 +1228,10 @@ static inline void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
* ieee80211_rx_irqsafe - receive frame
*
* Like ieee80211_rx() but can be called in IRQ context
- * (internally defers to a workqueue.)
+ * (internally defers to a tasklet.)
+ *
+ * Calls to this function and ieee80211_rx() may not be mixed for a
+ * single hardware.
*
* @hw: the hardware this frame came in on
* @skb: the buffer to receive, owned by mac80211 after this call
@@ -1344,6 +1250,11 @@ void ieee80211_rx_irqsafe(struct ieee80211_hw *hw,
* transmitted. It is permissible to not call this function for
* multicast frames but this can affect statistics.
*
+ * This function may not be called in IRQ context. Calls to this function
+ * for a single hardware must be synchronized against each other. Calls
+ * to this function and ieee80211_tx_status_irqsafe() may not be mixed
+ * for a single hardware.
+ *
* @hw: the hardware the frame was transmitted by
* @skb: the frame that was transmitted, owned by mac80211 after this call
* @status: status information for this frame; the status pointer need not
@@ -1353,6 +1264,22 @@ void ieee80211_rx_irqsafe(struct ieee80211_hw *hw,
void ieee80211_tx_status(struct ieee80211_hw *hw,
struct sk_buff *skb,
struct ieee80211_tx_status *status);
+
+/**
+ * ieee80211_tx_status_irqsafe - irq-safe transmit status callback
+ *
+ * Like ieee80211_tx_status() but can be called in IRQ context
+ * (internally defers to a tasklet.)
+ *
+ * Calls to this function and ieee80211_tx_status() may not be mixed for a
+ * single hardware.
+ *
+ * @hw: the hardware the frame was transmitted by
+ * @skb: the frame that was transmitted, owned by mac80211 after this call
+ * @status: status information for this frame; the status pointer need not
+ * be valid after this function returns and is not freed by mac80211,
+ * it is recommended that it points to a stack area
+ */
void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw,
struct sk_buff *skb,
struct ieee80211_tx_status *status);
@@ -1449,7 +1376,7 @@ __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).
@@ -1457,7 +1384,7 @@ __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
@@ -1574,4 +1501,81 @@ void ieee80211_iterate_active_interfaces(struct ieee80211_hw *hw,
struct ieee80211_vif *vif),
void *data);
+/**
+ * ieee80211_start_tx_ba_session - Start a tx Block Ack session.
+ * @hw: pointer as obtained from ieee80211_alloc_hw().
+ * @ra: receiver address of the BA session recipient
+ * @tid: the TID to BA on.
+ * @return: success if addBA request was sent, failure otherwise
+ *
+ * Although mac80211/low level driver/user space application can estimate
+ * the need to start aggregation on a certain RA/TID, the session level
+ * will be managed by the mac80211.
+ */
+int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid);
+
+/**
+ * ieee80211_start_tx_ba_cb - low level driver ready to aggregate.
+ * @hw: pointer as obtained from ieee80211_alloc_hw().
+ * @ra: receiver address of the BA session recipient.
+ * @tid: the TID to BA on.
+ *
+ * This function must be called by low level driver once it has
+ * finished with preparations for the BA session.
+ */
+void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid);
+
+/**
+ * ieee80211_start_tx_ba_cb_irqsafe - low level driver ready to aggregate.
+ * @hw: pointer as obtained from ieee80211_alloc_hw().
+ * @ra: receiver address of the BA session recipient.
+ * @tid: the TID to BA on.
+ *
+ * This function must be called by low level driver once it has
+ * finished with preparations for the BA session.
+ * This version of the function is irq safe.
+ */
+void ieee80211_start_tx_ba_cb_irqsafe(struct ieee80211_hw *hw, const u8 *ra,
+ u16 tid);
+
+/**
+ * ieee80211_stop_tx_ba_session - Stop a Block Ack session.
+ * @hw: pointer as obtained from ieee80211_alloc_hw().
+ * @ra: receiver address of the BA session recipient
+ * @tid: the TID to stop BA.
+ * @initiator: if indicates initiator DELBA frame will be sent.
+ * @return: error if no sta with matching da found, success otherwise
+ *
+ * Although mac80211/low level driver/user space application can estimate
+ * the need to stop aggregation on a certain RA/TID, the session level
+ * will be managed by the mac80211.
+ */
+int ieee80211_stop_tx_ba_session(struct ieee80211_hw *hw,
+ u8 *ra, u16 tid,
+ enum ieee80211_back_parties initiator);
+
+/**
+ * ieee80211_stop_tx_ba_cb - low level driver ready to stop aggregate.
+ * @hw: pointer as obtained from ieee80211_alloc_hw().
+ * @ra: receiver address of the BA session recipient.
+ * @tid: the desired TID to BA on.
+ *
+ * This function must be called by low level driver once it has
+ * finished with preparations for the BA session tear down.
+ */
+void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid);
+
+/**
+ * ieee80211_stop_tx_ba_cb_irqsafe - low level driver ready to stop aggregate.
+ * @hw: pointer as obtained from ieee80211_alloc_hw().
+ * @ra: receiver address of the BA session recipient.
+ * @tid: the desired TID to BA on.
+ *
+ * This function must be called by low level driver once it has
+ * finished with preparations for the BA session tear down.
+ * This version of the function is irq safe.
+ */
+void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_hw *hw, const u8 *ra,
+ u16 tid);
+
#endif /* MAC80211_H */
diff --git a/include/net/wireless.h b/include/net/wireless.h
index d30c4ba8fd9..c7f805ee554 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 */