* 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-IRQ-safe functions!
*/
/**
* 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_notification_type - Low level driver notification
+ * @IEEE80211_NOTIFY_RE_ASSOC: start the re-association sequence
+ */
+enum ieee80211_notification_types {
+ IEEE80211_NOTIFY_RE_ASSOC,
};
/**
- * enum ieee80211_phymode - PHY modes
+ * struct ieee80211_ht_bss_info - describing BSS's HT characteristics
+ *
+ * This structure describes most essential parameters needed
+ * to describe 802.11n HT characteristics in a BSS.
*
- * @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
+ * @primary_channel: channel number of primery channel
+ * @bss_cap: 802.11n's general BSS capabilities (e.g. channel width)
+ * @bss_op_mode: 802.11n's BSS operation modes (e.g. HT protection)
*/
-enum ieee80211_phymode {
- MODE_IEEE80211A,
- MODE_IEEE80211B,
- MODE_IEEE80211G,
-
- /* keep last */
- NUM_IEEE80211_MODES
+struct ieee80211_ht_bss_info {
+ u8 primary_channel;
+ u8 bss_cap; /* use IEEE80211_HT_IE_CHA_ */
+ u8 bss_op_mode; /* use IEEE80211_HT_IE_ */
};
/**
- * struct ieee80211_hw_mode - PHY mode definition
- *
- * This structure describes the capabilities supported by the device
- * in a single PHY mode.
+ * enum ieee80211_max_queues - maximum number of queues
*
- * @mode: the PHY mode for this definition
- * @num_channels: number of supported channels
- * @channels: pointer to array of supported channels
- * @num_rates: number of supported bitrates
- * @rates: pointer to array of supported bitrates
- * @list: internal
+ * @IEEE80211_MAX_QUEUES: Maximum number of regular device queues.
+ * @IEEE80211_MAX_AMPDU_QUEUES: Maximum number of queues usable
+ * for A-MPDU operation.
*/
-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;
+enum ieee80211_max_queues {
+ IEEE80211_MAX_QUEUES = 16,
+ IEEE80211_MAX_AMPDU_QUEUES = 16,
};
/**
* 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]
+ * @aifs: arbitration interface space [0..255]
+ * @cw_min: minimum contention window [a value of the form
+ * 2^n-1 in the range 1..32767]
* @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;
+ u16 txop;
+ u16 cw_min;
+ u16 cw_max;
+ u8 aifs;
};
/**
- * struct ieee80211_tx_queue_stats_data - transmit queue statistics
+ * struct ieee80211_tx_queue_stats - transmit queue statistics
*
* @len: number of packets in queue
* @limit: queue length limit
* @count: number of frames sent
*/
-struct ieee80211_tx_queue_stats_data {
+struct ieee80211_tx_queue_stats {
unsigned int len;
unsigned int limit;
unsigned int count;
};
-/**
- * enum ieee80211_tx_queue - transmit queue number
- *
- * These constants are used with some callbacks that take a
- * queue number to set parameters for a queue.
- *
- * @IEEE80211_TX_QUEUE_DATA0: data queue 0
- * @IEEE80211_TX_QUEUE_DATA1: data queue 1
- * @IEEE80211_TX_QUEUE_DATA2: data queue 2
- * @IEEE80211_TX_QUEUE_DATA3: data queue 3
- * @IEEE80211_TX_QUEUE_DATA4: data queue 4
- * @IEEE80211_TX_QUEUE_SVP: ??
- * @NUM_TX_DATA_QUEUES: number of data queues
- * @IEEE80211_TX_QUEUE_AFTER_BEACON: transmit queue for frames to be
- * sent after a beacon
- * @IEEE80211_TX_QUEUE_BEACON: transmit queue for beacon frames
- */
-enum ieee80211_tx_queue {
- IEEE80211_TX_QUEUE_DATA0,
- IEEE80211_TX_QUEUE_DATA1,
- IEEE80211_TX_QUEUE_DATA2,
- IEEE80211_TX_QUEUE_DATA3,
- IEEE80211_TX_QUEUE_DATA4,
- IEEE80211_TX_QUEUE_SVP,
-
- NUM_TX_DATA_QUEUES,
-
-/* due to stupidity in the sub-ioctl userspace interface, the items in
- * 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
-};
-
-struct ieee80211_tx_queue_stats {
- struct ieee80211_tx_queue_stats_data data[NUM_TX_DATA_QUEUES];
-};
-
struct ieee80211_low_level_stats {
unsigned int dot11ACKFailureCount;
unsigned int dot11RTSFailureCount;
unsigned int dot11RTSSuccessCount;
};
-/* Transmit control fields. This data structure is passed to low-level driver
- * with each TX frame. The low-level driver is responsible for configuring
- * the hardware to use given values (depending on what is supported). */
-
-struct ieee80211_tx_control {
- 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) */
-
-#define IEEE80211_TXCTL_REQ_TX_STATUS (1<<0)/* request TX status callback for
- * this frame */
-#define IEEE80211_TXCTL_DO_NOT_ENCRYPT (1<<1) /* send this frame without
- * encryption; e.g., for EAPOL
- * frames */
-#define IEEE80211_TXCTL_USE_RTS_CTS (1<<2) /* use RTS-CTS before sending
- * frame */
-#define IEEE80211_TXCTL_USE_CTS_PROTECT (1<<3) /* use CTS protection for the
- * frame (e.g., for combined
- * 802.11g / 802.11b networks) */
-#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_REQUEUE (1<<7)
-#define IEEE80211_TXCTL_FIRST_FRAGMENT (1<<8) /* this is a first fragment of
- * the frame */
-#define IEEE80211_TXCTL_LONG_RETRY_LIMIT (1<<10) /* this frame should be send
- * using the through
- * set_retry_limit configured
- * long retry value */
- u32 flags; /* tx control flags defined
- * above */
- u8 key_idx; /* keyidx from hw->set_key(), undefined if
- * IEEE80211_TXCTL_DO_NOT_ENCRYPT is set */
- 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 */
- int ifindex; /* internal */
+/**
+ * enum ieee80211_bss_change - BSS change notification flags
+ *
+ * These flags are used with the bss_info_changed() callback
+ * to indicate which BSS parameter changed.
+ *
+ * @BSS_CHANGED_ASSOC: association status changed (associated/disassociated),
+ * also implies a change in the AID.
+ * @BSS_CHANGED_ERP_CTS_PROT: CTS protection changed
+ * @BSS_CHANGED_ERP_PREAMBLE: preamble changed
+ * @BSS_CHANGED_HT: 802.11n parameters changed
+ */
+enum ieee80211_bss_change {
+ BSS_CHANGED_ASSOC = 1<<0,
+ BSS_CHANGED_ERP_CTS_PROT = 1<<1,
+ BSS_CHANGED_ERP_PREAMBLE = 1<<2,
+ BSS_CHANGED_HT = 1<<4,
+};
+
+/**
+ * struct ieee80211_bss_conf - holds the BSS's changing parameters
+ *
+ * This structure keeps information about a BSS (and an association
+ * to that BSS) that can change during the lifetime of the BSS.
+ *
+ * @assoc: association status
+ * @aid: association ID number, valid only when @assoc is true
+ * @use_cts_prot: use CTS protection
+ * @use_short_preamble: use 802.11b short preamble
+ * @dtim_period: num of beacons before the next DTIM, for PSM
+ * @timestamp: beacon timestamp
+ * @beacon_int: beacon interval
+ * @assoc_capability: capabilities taken from assoc resp
+ * @assoc_ht: association in HT mode
+ * @ht_conf: ht capabilities
+ * @ht_bss_conf: ht extended capabilities
+ */
+struct ieee80211_bss_conf {
+ /* association related data */
+ bool assoc;
+ u16 aid;
+ /* erp related data */
+ bool use_cts_prot;
+ bool use_short_preamble;
+ u8 dtim_period;
+ u16 beacon_int;
+ u16 assoc_capability;
+ u64 timestamp;
+ /* ht related data */
+ bool assoc_ht;
+ struct ieee80211_ht_info *ht_conf;
+ struct ieee80211_ht_bss_info *ht_bss_conf;
};
+/**
+ * enum mac80211_tx_control_flags - flags to describe transmission information/status
+ *
+ * These flags are used with the @flags member of &ieee80211_tx_info.
+ *
+ * @IEEE80211_TX_CTL_REQ_TX_STATUS: request TX status callback for this frame.
+ * @IEEE80211_TX_CTL_USE_RTS_CTS: use RTS-CTS before sending frame
+ * @IEEE80211_TX_CTL_USE_CTS_PROTECT: use CTS protection for the frame (e.g.,
+ * for combined 802.11g / 802.11b networks)
+ * @IEEE80211_TX_CTL_NO_ACK: tell the low level not to wait for an ack
+ * @IEEE80211_TX_CTL_RATE_CTRL_PROBE: TBD
+ * @IEEE80211_TX_CTL_CLEAR_PS_FILT: clear powersave filter for destination
+ * station
+ * @IEEE80211_TX_CTL_REQUEUE: TBD
+ * @IEEE80211_TX_CTL_FIRST_FRAGMENT: this is a first fragment of the frame
+ * @IEEE80211_TX_CTL_SHORT_PREAMBLE: TBD
+ * @IEEE80211_TX_CTL_LONG_RETRY_LIMIT: this frame should be send using the
+ * through set_retry_limit configured long retry value
+ * @IEEE80211_TX_CTL_SEND_AFTER_DTIM: send this frame after DTIM beacon
+ * @IEEE80211_TX_CTL_AMPDU: this frame should be sent as part of an A-MPDU
+ * @IEEE80211_TX_CTL_OFDM_HT: this frame can be sent in HT OFDM rates. number
+ * of streams when this flag is on can be extracted from antenna_sel_tx,
+ * so if 1 antenna is marked use SISO, 2 antennas marked use MIMO, n
+ * antennas marked use MIMO_n.
+ * @IEEE80211_TX_CTL_GREEN_FIELD: use green field protection for this frame
+ * @IEEE80211_TX_CTL_40_MHZ_WIDTH: send this frame using 40 Mhz channel width
+ * @IEEE80211_TX_CTL_DUP_DATA: duplicate data frame on both 20 Mhz channels
+ * @IEEE80211_TX_CTL_SHORT_GI: send this frame using short guard interval
+ * @IEEE80211_TX_CTL_INJECTED: TBD
+ * @IEEE80211_TX_STAT_TX_FILTERED: The frame was not transmitted
+ * because the destination STA was in powersave mode.
+ * @IEEE80211_TX_STAT_ACK: Frame was acknowledged
+ * @IEEE80211_TX_STAT_AMPDU: The frame was aggregated, so status
+ * is for the whole aggregation.
+ * @IEEE80211_TX_STAT_AMPDU_NO_BACK: no block ack was returned,
+ * so consider using block ack request (BAR).
+ * @IEEE80211_TX_CTL_ASSIGN_SEQ: The driver has to assign a sequence
+ * number to this frame, taking care of not overwriting the fragment
+ * number and increasing the sequence number only when the
+ * IEEE80211_TX_CTL_FIRST_FRAGMENT flags is set. mac80211 will properly
+ * assign sequence numbers to QoS-data frames but cannot do so correctly
+ * for non-QoS-data and management frames because beacons need them from
+ * that counter as well and mac80211 cannot guarantee proper sequencing.
+ * If this flag is set, the driver should instruct the hardware to
+ * assign a sequence number to the frame or assign one itself. Cf. IEEE
+ * 802.11-2007 7.1.3.4.1 paragraph 3. This flag will always be set for
+ * beacons always be clear for frames without a sequence number field.
+ */
+enum mac80211_tx_control_flags {
+ IEEE80211_TX_CTL_REQ_TX_STATUS = BIT(0),
+ IEEE80211_TX_CTL_USE_RTS_CTS = BIT(2),
+ IEEE80211_TX_CTL_USE_CTS_PROTECT = BIT(3),
+ IEEE80211_TX_CTL_NO_ACK = BIT(4),
+ IEEE80211_TX_CTL_RATE_CTRL_PROBE = BIT(5),
+ IEEE80211_TX_CTL_CLEAR_PS_FILT = BIT(6),
+ IEEE80211_TX_CTL_REQUEUE = BIT(7),
+ IEEE80211_TX_CTL_FIRST_FRAGMENT = BIT(8),
+ IEEE80211_TX_CTL_SHORT_PREAMBLE = BIT(9),
+ IEEE80211_TX_CTL_LONG_RETRY_LIMIT = BIT(10),
+ IEEE80211_TX_CTL_SEND_AFTER_DTIM = BIT(12),
+ IEEE80211_TX_CTL_AMPDU = BIT(13),
+ IEEE80211_TX_CTL_OFDM_HT = BIT(14),
+ IEEE80211_TX_CTL_GREEN_FIELD = BIT(15),
+ IEEE80211_TX_CTL_40_MHZ_WIDTH = BIT(16),
+ IEEE80211_TX_CTL_DUP_DATA = BIT(17),
+ IEEE80211_TX_CTL_SHORT_GI = BIT(18),
+ IEEE80211_TX_CTL_INJECTED = BIT(19),
+ IEEE80211_TX_STAT_TX_FILTERED = BIT(20),
+ IEEE80211_TX_STAT_ACK = BIT(21),
+ IEEE80211_TX_STAT_AMPDU = BIT(22),
+ IEEE80211_TX_STAT_AMPDU_NO_BACK = BIT(23),
+ IEEE80211_TX_CTL_ASSIGN_SEQ = BIT(24),
+};
+
+
+#define IEEE80211_TX_INFO_DRIVER_DATA_SIZE \
+ (sizeof(((struct sk_buff *)0)->cb) - 8)
+#define IEEE80211_TX_INFO_DRIVER_DATA_PTRS \
+ (IEEE80211_TX_INFO_DRIVER_DATA_SIZE / sizeof(void *))
+
+/**
+ * struct ieee80211_tx_info - skb transmit information
+ *
+ * This structure is placed in skb->cb for three uses:
+ * (1) mac80211 TX control - mac80211 tells the driver what to do
+ * (2) driver internal use (if applicable)
+ * (3) TX status information - driver tells mac80211 what happened
+ *
+ * @flags: transmit info flags, defined above
+ * @band: TBD
+ * @tx_rate_idx: TBD
+ * @antenna_sel_tx: TBD
+ * @control: union for control data
+ * @status: union for status data
+ * @driver_data: array of driver_data pointers
+ * @retry_count: number of retries
+ * @excessive_retries: set to 1 if the frame was retried many times
+ * but not acknowledged
+ * @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
+ */
+struct ieee80211_tx_info {
+ /* common information */
+ u32 flags;
+ u8 band;
+ s8 tx_rate_idx;
+ u8 antenna_sel_tx;
+
+ /* 1 byte hole */
+
+ union {
+ struct {
+ struct ieee80211_vif *vif;
+ struct ieee80211_key_conf *hw_key;
+ unsigned long jiffies;
+ u16 aid;
+ s8 rts_cts_rate_idx, alt_retry_rate_idx;
+ u8 retry_limit;
+ u8 icv_len;
+ u8 iv_len;
+ } control;
+ struct {
+ u64 ampdu_ack_map;
+ int ack_signal;
+ u8 retry_count;
+ bool excessive_retries;
+ u8 ampdu_ack_len;
+ } status;
+ void *driver_data[IEEE80211_TX_INFO_DRIVER_DATA_PTRS];
+ };
+};
+
+static inline struct ieee80211_tx_info *IEEE80211_SKB_CB(struct sk_buff *skb)
+{
+ return (struct ieee80211_tx_info *)skb->cb;
+}
+
/**
* enum mac80211_rx_flags - receive flags
* the frame.
* @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. 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,
RX_FLAG_IV_STRIPPED = 1<<4,
RX_FLAG_FAILED_FCS_CRC = 1<<5,
RX_FLAG_FAILED_PLCP_CRC = 1<<6,
+ RX_FLAG_TSFT = 1<<7,
};
/**
* 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
+ * @signal: signal strength when receiving this frame, either in dBm, in dB or
+ * unspecified depending on the hardware capabilities flags
+ * @IEEE80211_HW_SIGNAL_*
+ * @noise: noise when receiving this frame, in dBm.
+ * @qual: overall signal quality indication, in percent (0-100).
* @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 qual;
int antenna;
- int rate;
+ int rate_idx;
int flag;
};
/**
- * enum ieee80211_tx_status_flags - transmit status flags
- *
- * Status flags to indicate various transmit conditions.
- *
- * @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
- */
-enum ieee80211_tx_status_flags {
- IEEE80211_TX_STATUS_TX_FILTERED = 1<<0,
- IEEE80211_TX_STATUS_ACK = 1<<1,
-};
-
-/**
- * struct ieee80211_tx_status - transmit status
- *
- * As much information as possible should be provided for each transmitted
- * frame with ieee80211_tx_status().
- *
- * @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
- *
- * @excessive_retries: set to 1 if the frame was retried many times
- * but not acknowledged
- *
- * @retry_count: number of retries
- *
- * @queue_length: ?? REMOVE
- * @queue_number: ?? REMOVE
- */
-struct ieee80211_tx_status {
- struct ieee80211_tx_control control;
- u8 flags;
- bool excessive_retries;
- u8 retry_count;
- int ack_signal;
- int queue_length;
- int queue_number;
-};
-
-/**
* enum ieee80211_conf_flags - configuration flags
*
* Flags to define PHY configuration options
*
* @IEEE80211_CONF_SHORT_SLOT_TIME: use 802.11g short slot time
* @IEEE80211_CONF_RADIOTAP: add radiotap header at receive time (if supported)
- *
+ * @IEEE80211_CONF_SUPPORT_HT_MODE: use 802.11n HT capabilities (if supported)
+ * @IEEE80211_CONF_PS: Enable 802.11 power save mode
*/
enum ieee80211_conf_flags {
- IEEE80211_CONF_SHORT_SLOT_TIME = 1<<0,
- IEEE80211_CONF_RADIOTAP = 1<<1,
+ IEEE80211_CONF_SHORT_SLOT_TIME = (1<<0),
+ IEEE80211_CONF_RADIOTAP = (1<<1),
+ IEEE80211_CONF_SUPPORT_HT_MODE = (1<<2),
+ IEEE80211_CONF_PS = (1<<3),
};
/**
*
* @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)
+ * @listen_interval: listen interval in units of beacon interval
* @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;
+ u16 listen_interval;
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;
};
/**
* @IEEE80211_IF_TYPE_WDS: interface in WDS mode.
* @IEEE80211_IF_TYPE_VLAN: VLAN interface bound to an AP, drivers
* will never see this type.
+ * @IEEE80211_IF_TYPE_MESH_POINT: 802.11s mesh point
*/
enum ieee80211_if_types {
IEEE80211_IF_TYPE_INVALID,
IEEE80211_IF_TYPE_AP,
IEEE80211_IF_TYPE_STA,
IEEE80211_IF_TYPE_IBSS,
+ IEEE80211_IF_TYPE_MESH_POINT,
IEEE80211_IF_TYPE_MNTR,
IEEE80211_IF_TYPE_WDS,
IEEE80211_IF_TYPE_VLAN,
};
/**
+ * struct ieee80211_vif - per-interface data
+ *
+ * Data in this structure is continually present for driver
+ * use during the life of a virtual interface.
+ *
+ * @type: type of this virtual interface
+ * @drv_priv: data area for driver use, will always be aligned to
+ * sizeof(void *).
+ */
+struct ieee80211_vif {
+ enum ieee80211_if_types type;
+ /* must be last */
+ u8 drv_priv[0] __attribute__((__aligned__(sizeof(void *))));
+};
+
+static inline bool ieee80211_vif_is_mesh(struct ieee80211_vif *vif)
+{
+#ifdef CONFIG_MAC80211_MESH
+ return vif->type == IEEE80211_IF_TYPE_MESH_POINT;
+#endif
+ return false;
+}
+
+/**
* struct ieee80211_if_init_conf - initial configuration of an interface
*
- * @if_id: internal interface ID. This number has no particular meaning to
- * drivers and the only allowed usage is to pass it to
- * ieee80211_beacon_get() and ieee80211_get_buffered_bc() functions.
- * This field is not valid for monitor interfaces
- * (interfaces of %IEEE80211_IF_TYPE_MNTR type).
+ * @vif: pointer to a driver-use per-interface structure. The pointer
+ * itself is also used for various functions including
+ * ieee80211_beacon_get() and ieee80211_get_buffered_bc().
* @type: one of &enum ieee80211_if_types constants. Determines the type of
* added/removed interface.
* @mac_addr: pointer to MAC address of the interface. This pointer is valid
* in pure monitor mode.
*/
struct ieee80211_if_init_conf {
- int if_id;
enum ieee80211_if_types type;
+ struct ieee80211_vif *vif;
void *mac_addr;
};
/**
+ * enum ieee80211_if_conf_change - interface config change flags
+ *
+ * @IEEE80211_IFCC_BSSID: The BSSID changed.
+ * @IEEE80211_IFCC_SSID: The SSID changed.
+ * @IEEE80211_IFCC_BEACON: The beacon for this interface changed
+ * (currently AP and MESH only), use ieee80211_beacon_get().
+ */
+enum ieee80211_if_conf_change {
+ IEEE80211_IFCC_BSSID = BIT(0),
+ IEEE80211_IFCC_SSID = BIT(1),
+ IEEE80211_IFCC_BEACON = BIT(2),
+};
+
+/**
* struct ieee80211_if_conf - configuration of an interface
*
- * @type: type of the interface. This is always the same as was specified in
- * &struct ieee80211_if_init_conf. The type of an interface never changes
- * during the life of the interface; this field is present only for
- * convenience.
+ * @changed: parameters that have changed, see &enum ieee80211_if_conf_change.
* @bssid: BSSID of the network we are associated to/creating.
* @ssid: used (together with @ssid_len) by drivers for hardware that
* generate beacons independently. The pointer is valid only during the
* config_interface() call, so copy the value somewhere if you need
* it.
* @ssid_len: length of the @ssid field.
- * @beacon: beacon template. Valid only if @host_gen_beacon_template in
- * &struct ieee80211_hw is set. The driver is responsible of freeing
- * the sk_buff.
- * @beacon_control: tx_control for the beacon template, this field is only
- * valid when the @beacon field was set.
*
* This structure is passed to the config_interface() callback of
* &struct ieee80211_hw.
*/
struct ieee80211_if_conf {
- int type;
+ u32 changed;
u8 *bssid;
u8 *ssid;
size_t ssid_len;
- struct sk_buff *beacon;
- struct ieee80211_tx_control *beacon_control;
};
/**
ALG_CCMP,
};
+/**
+ * enum ieee80211_key_len - key length
+ * @LEN_WEP40: WEP 5-byte long key
+ * @LEN_WEP104: WEP 13-byte long key
+ */
+enum ieee80211_key_len {
+ LEN_WEP40 = 5,
+ LEN_WEP104 = 13,
+};
/**
* enum ieee80211_key_flags - key flags
* @IEEE80211_KEY_FLAG_GENERATE_MMIC: This flag should be set by
* the driver for a TKIP key if it requires Michael MIC
* generation in software.
+ * @IEEE80211_KEY_FLAG_PAIRWISE: Set by mac80211, this flag indicates
+ * that the key is pairwise rather then a shared key.
*/
enum ieee80211_key_flags {
IEEE80211_KEY_FLAG_WMM_STA = 1<<0,
IEEE80211_KEY_FLAG_GENERATE_IV = 1<<1,
IEEE80211_KEY_FLAG_GENERATE_MMIC= 1<<2,
+ IEEE80211_KEY_FLAG_PAIRWISE = 1<<3,
};
/**
* @flags: key flags, see &enum ieee80211_key_flags.
* @keyidx: the key index (0-3)
* @keylen: key material length
- * @key: key material
+ * @key: key material. For ALG_TKIP the key is encoded as a 256-bit (32 byte)
+ * data block:
+ * - Temporal Encryption Key (128 bits)
+ * - Temporal Authenticator Tx MIC Key (64 bits)
+ * - Temporal Authenticator Rx MIC Key (64 bits)
+ *
*/
struct ieee80211_key_conf {
enum ieee80211_key_alg alg;
u8 key[0];
};
-#define IEEE80211_SEQ_COUNTER_RX 0
-#define IEEE80211_SEQ_COUNTER_TX 1
-
/**
* enum set_key_cmd - key command
*
SET_KEY, DISABLE_KEY,
};
+/**
+ * enum sta_notify_cmd - sta notify command
+ *
+ * Used with the sta_notify() callback in &struct ieee80211_ops, this
+ * indicates addition and removal of a station to station table.
+ *
+ * @STA_NOTIFY_ADD: a station was added to the station table
+ * @STA_NOTIFY_REMOVE: a station being removed from the station table
+ */
+enum sta_notify_cmd {
+ STA_NOTIFY_ADD, STA_NOTIFY_REMOVE
+};
+
+/**
+ * enum ieee80211_tkip_key_type - get tkip key
+ *
+ * Used by drivers which need to get a tkip key for skb. Some drivers need a
+ * phase 1 key, others need a phase 2 key. A single function allows the driver
+ * to get the key, this enum indicates what type of key is required.
+ *
+ * @IEEE80211_TKIP_P1_KEY: the driver needs a phase 1 key
+ * @IEEE80211_TKIP_P2_KEY: the driver needs a phase 2 key
+ */
+enum ieee80211_tkip_key_type {
+ IEEE80211_TKIP_P1_KEY,
+ IEEE80211_TKIP_P2_KEY,
+};
/**
* enum ieee80211_hw_flags - hardware flags
* any particular flags. There are some exceptions to this rule,
* however, so you are advised to review these flags carefully.
*
- * @IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE:
- * The device only needs to be supplied with a beacon template.
- * If you need the host to generate each beacon then don't use
- * this flag and call ieee80211_beacon_get() when you need the
- * next beacon frame. Note that if you set this flag, you must
- * implement the set_tim() callback for powersave mode to work
- * properly.
- * This flag is only relevant for access-point mode.
- *
* @IEEE80211_HW_RX_INCLUDES_FCS:
* Indicates that received frames passed to the stack include
* the FCS at the end.
* rely on the host system for such buffering. This option is used
* to configure the IEEE 802.11 upper layer to buffer broadcast and
* multicast frames when there are power saving stations so that
- * the driver can fetch them with ieee80211_get_buffered_bc(). Note
- * that not setting this flag works properly only when the
- * %IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE is also not set because
- * otherwise the stack will not know when the DTIM beacon was sent.
+ * the driver can fetch them with ieee80211_get_buffered_bc().
+ *
+ * @IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE:
+ * Hardware is not capable of short slot operation on the 2.4 GHz band.
*
- * @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_PREAMBLE_INCAPABLE:
+ * Hardware is not capable of receiving frames with short preamble on
+ * the 2.4 GHz band.
+ *
+ * @IEEE80211_HW_SIGNAL_UNSPEC:
+ * Hardware can provide signal values but we don't know its units. We
+ * expect values between 0 and @max_signal.
+ * If possible please provide dB or dBm instead.
+ *
+ * @IEEE80211_HW_SIGNAL_DB:
+ * Hardware gives signal values in dB, decibel difference from an
+ * arbitrary, fixed reference. We expect values between 0 and @max_signal.
+ * If possible please provide dBm instead.
+ *
+ * @IEEE80211_HW_SIGNAL_DBM:
+ * Hardware gives signal values in dBm, decibel difference from
+ * one milliwatt. This is the preferred method since it is standardized
+ * between different devices. @max_signal does not need to be set.
+ *
+ * @IEEE80211_HW_NOISE_DBM:
+ * Hardware can provide noise (radio interference) values in units dBm,
+ * decibel difference from one milliwatt.
+ *
+ * @IEEE80211_HW_SPECTRUM_MGMT:
+ * Hardware supports spectrum management defined in 802.11h
+ * Measurement, Channel Switch, Quieting, TPC
*/
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,
+ IEEE80211_HW_SIGNAL_UNSPEC = 1<<5,
+ IEEE80211_HW_SIGNAL_DB = 1<<6,
+ IEEE80211_HW_SIGNAL_DBM = 1<<7,
+ IEEE80211_HW_NOISE_DBM = 1<<8,
+ IEEE80211_HW_SPECTRUM_MGMT = 1<<9,
};
/**
* @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.
*
* @workqueue: single threaded workqueue available for driver use,
- * allocated by mac80211 on registration and flushed on
- * unregistration.
+ * allocated by mac80211 on registration and flushed when an
+ * interface is removed.
+ * NOTICE: All work performed on this workqueue should NEVER
+ * acquire the RTNL lock (i.e. Don't use the function
+ * ieee80211_iterate_active_interfaces())
*
* @priv: pointer to private area that was allocated for driver use
* along with this structure.
*
* @channel_change_time: time (in microseconds) it takes to change channels.
*
- * @max_rssi: Maximum value for ssi in RX information, use
- * negative numbers for dBm and 0 to indicate no support.
- *
- * @max_signal: like @max_rssi, but for the signal value.
+ * @max_signal: Maximum value for signal (rssi) in RX information, used
+ * only when @IEEE80211_HW_SIGNAL_UNSPEC or @IEEE80211_HW_SIGNAL_DB
*
- * @max_noise: like @max_rssi, but for the noise value.
+ * @max_listen_interval: max listen interval in units of beacon interval
+ * that HW supports
*
* @queues: number of available hardware transmit queues for
- * data packets. WMM/QoS requires at least four.
+ * data packets. WMM/QoS requires at least four, these
+ * queues need to have configurable access parameters.
+ *
+ * @ampdu_queues: number of available hardware transmit queues
+ * for A-MPDU packets, these have no access parameters
+ * because they're used only for A-MPDU frames. Note that
+ * mac80211 will not currently use any of the regular queues
+ * for aggregation.
+ *
+ * @rate_control_algorithm: rate control algorithm for this hardware.
+ * If unset (NULL), the default algorithm will be used. Must be
+ * set before calling ieee80211_register_hw().
+ *
+ * @vif_data_size: size (in bytes) of the drv_priv data area
+ * within &struct ieee80211_vif.
*/
struct ieee80211_hw {
struct ieee80211_conf conf;
struct wiphy *wiphy;
struct workqueue_struct *workqueue;
+ const char *rate_control_algorithm;
void *priv;
u32 flags;
unsigned int extra_tx_headroom;
int channel_change_time;
- u8 queues;
- s8 max_rssi;
+ int vif_data_size;
+ u16 queues;
+ u16 ampdu_queues;
+ u16 max_listen_interval;
s8 max_signal;
- s8 max_noise;
};
/**
memcpy(hw->wiphy->perm_addr, addr, ETH_ALEN);
}
+static inline int ieee80211_num_regular_queues(struct ieee80211_hw *hw)
+{
+ return hw->queues;
+}
+
+static inline int ieee80211_num_queues(struct ieee80211_hw *hw)
+{
+ return hw->queues + hw->ampdu_queues;
+}
+
+static inline struct ieee80211_rate *
+ieee80211_get_tx_rate(const struct ieee80211_hw *hw,
+ const struct ieee80211_tx_info *c)
+{
+ if (WARN_ON(c->tx_rate_idx < 0))
+ return NULL;
+ return &hw->wiphy->bands[c->band]->bitrates[c->tx_rate_idx];
+}
+
+static inline struct ieee80211_rate *
+ieee80211_get_rts_cts_rate(const struct ieee80211_hw *hw,
+ const struct ieee80211_tx_info *c)
+{
+ if (c->control.rts_cts_rate_idx < 0)
+ return NULL;
+ return &hw->wiphy->bands[c->band]->bitrates[c->control.rts_cts_rate_idx];
+}
+
+static inline struct ieee80211_rate *
+ieee80211_get_alt_retry_rate(const struct ieee80211_hw *hw,
+ const struct ieee80211_tx_info *c)
+{
+ if (c->control.alt_retry_rate_idx < 0)
+ return NULL;
+ return &hw->wiphy->bands[c->band]->bitrates[c->control.alt_retry_rate_idx];
+}
+
/**
* DOC: Hardware crypto acceleration
*
* parameter is guaranteed to be valid until another call to set_key()
* removes it, but it can only be used as a cookie to differentiate
* keys.
+ *
+ * In TKIP some HW need to be provided a phase 1 key, for RX decryption
+ * acceleration (i.e. iwlwifi). Those drivers should provide update_tkip_key
+ * handler.
+ * The update_tkip_key() call updates the driver with the new phase 1 key.
+ * This happens everytime the iv16 wraps around (every 65536 packets). The
+ * set_key() call will happen only once for each key (unless the AP did
+ * rekeying), it will not include a valid phase 1 key. The valid phase 1 key is
+ * provided by udpate_tkip_key only. The trigger that makes mac80211 call this
+ * handler is software decryption with wrap around of iv16.
*/
/**
* 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.
*/
/**
};
/**
- * enum ieee80211_erp_change_flags - erp change flags
- *
- * These flags are used with the erp_ie_changed() callback in
- * &struct ieee80211_ops to indicate which parameter(s) changed.
- * @IEEE80211_ERP_CHANGE_PROTECTION: protection changed
- * @IEEE80211_ERP_CHANGE_PREAMBLE: barker preamble mode changed
+ * enum ieee80211_ampdu_mlme_action - A-MPDU actions
+ *
+ * These flags are used with the ampdu_action() callback in
+ * &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_erp_change_flags {
- IEEE80211_ERP_CHANGE_PROTECTION = 1<<0,
- IEEE80211_ERP_CHANGE_PREAMBLE = 1<<1,
+enum ieee80211_ampdu_mlme_action {
+ IEEE80211_AMPDU_RX_START,
+ IEEE80211_AMPDU_RX_STOP,
+ IEEE80211_AMPDU_TX_START,
+ IEEE80211_AMPDU_TX_STOP,
};
-
/**
* struct ieee80211_ops - callbacks from mac80211 to the driver
*
* @tx: Handler that 802.11 module calls for each transmitted frame.
* skb contains the buffer starting from the IEEE 802.11 header.
* The low-level driver should send the frame out based on
- * configuration in the TX control data. Must be implemented and
- * atomic.
+ * configuration in the TX control data. This handler should,
+ * preferably, never fail and stop queues appropriately, more
+ * importantly, however, it must never fail for A-MPDU-queues.
+ * Must be implemented and atomic.
*
* @start: Called before the first netdevice attached to the hardware
* is enabled. This should turn on the hardware and must turn on
* @config_interface: Handler for configuration requests related to interfaces
* (e.g. BSSID changes.)
*
+ * @bss_info_changed: Handler for configuration requests related to BSS
+ * parameters that may vary during BSS's lifespan, and may affect low
+ * level driver (e.g. assoc/disassoc status, erp parameters).
+ * This function should not be used if no BSS has been set, unless
+ * for association indication. The @changed parameter indicates which
+ * of the bss parameters has changed when a call is made.
+ *
* @configure_filter: Configure the device's RX filter.
* See the section "Frame filtering" for more information.
* This callback must be implemented and atomic.
*
- * @set_tim: Set TIM bit. If the hardware/firmware takes care of beacon
- * generation (that is, %IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE is set)
- * mac80211 calls this function when a TIM bit must be set or cleared
- * for a given AID. Must be atomic.
+ * @set_tim: Set TIM bit. mac80211 calls this function when a TIM bit
+ * must be set or cleared for a given AID. Must be atomic.
*
* @set_key: See the section "Hardware crypto acceleration"
* This callback can sleep, and is only called between add_interface
* and remove_interface calls, i.e. while the interface with the
* given local_address is enabled.
*
- * @set_ieee8021x: Enable/disable IEEE 802.1X. This item requests wlan card
- * to pass unencrypted EAPOL-Key frames even when encryption is
- * configured. If the wlan card does not require such a configuration,
- * this function pointer can be set to NULL.
- *
- * @set_port_auth: Set port authorization state (IEEE 802.1X PAE) to be
- * authorized (@authorized=1) or unauthorized (=0). This function can be
- * used if the wlan hardware or low-level driver implements PAE.
- * mac80211 will filter frames based on authorization state in any case,
- * so this function pointer can be NULL if low-level driver does not
- * require event notification about port state changes.
+ * @update_tkip_key: See the section "Hardware crypto acceleration"
+ * This callback will be called in the context of Rx. Called for drivers
+ * which set IEEE80211_KEY_FLAG_TKIP_REQ_RX_P1_KEY.
*
* @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
*
- * @set_privacy_invoked: For devices that generate their own beacons and probe
- * response or association responses this updates the state of privacy_invoked
- * returns 0 for success or an error number.
- *
- * @get_sequence_counter: For devices that have internal sequence counters this
- * callback allows mac80211 to access the current value of a counter.
- * This callback seems not well-defined, tell us if you need it.
+ * @get_tkip_seq: If your device implements TKIP encryption in hardware this
+ * callback should be provided to read the TKIP transmit IVs (both IV32
+ * and IV16) for the given key from hardware.
*
* @set_rts_threshold: Configuration of RTS threshold (if device needs it)
*
*
* @set_retry_limit: Configuration of retry limits (if device needs it)
*
- * @sta_table_notification: Number of STAs in STA table notification. Must
- * be atomic.
- *
- * @erp_ie_changed: Handle ERP IE change notifications. Must be atomic.
+ * @sta_notify: Notifies low level driver about addition or removal
+ * of assocaited station or AP.
*
* @conf_tx: Configure TX queue parameters (EDCF (aifs, cw_min, cw_max),
- * bursting) for a hardware TX queue. The @queue parameter uses the
- * %IEEE80211_TX_QUEUE_* constants. Must be atomic.
+ * bursting) for a hardware TX queue. Must be atomic.
*
* @get_tx_stats: Get statistics of the current TX queue status. This is used
* to get number of currently queued packets (queue length), maximum queue
* size (limit), and total number of packets sent using each TX queue
- * (count). This information is used for WMM to find out which TX
- * queues have room for more packets and by hostapd to provide
- * statistics about the current queueing state to external programs.
+ * (count). The 'stats' pointer points to an array that has hw->queues +
+ * hw->ampdu_queues items.
*
* @get_tsf: Get the current TSF timer value from firmware/hardware. Currently,
* this is only used for IBSS mode debugging and, as such, is not a
* function is optional if the firmware/hardware takes full care of
* TSF synchronization.
*
- * @beacon_update: Setup beacon data for IBSS beacons. Unlike access point,
- * IBSS uses a fixed beacon frame which is configured using this
- * function. This handler is required only for IBSS mode.
- *
* @tx_last_beacon: Determine whether the last IBSS beacon was sent by us.
* This is needed only for IBSS mode and the result of this function is
* used to determine whether to reply to Probe Requests.
+ *
+ * @conf_ht: Configures low level driver with 802.11n HT data. Must be atomic.
+ *
+ * @ampdu_action: Perform a certain A-MPDU 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. notice
+ * that TX/RX_STOP can pass NULL for this parameter.
*/
struct ieee80211_ops {
- int (*tx)(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_tx_control *control);
+ int (*tx)(struct ieee80211_hw *hw, struct sk_buff *skb);
int (*start)(struct ieee80211_hw *hw);
void (*stop)(struct ieee80211_hw *hw);
int (*add_interface)(struct ieee80211_hw *hw,
struct ieee80211_if_init_conf *conf);
int (*config)(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
int (*config_interface)(struct ieee80211_hw *hw,
- int if_id, struct ieee80211_if_conf *conf);
+ struct ieee80211_vif *vif,
+ struct ieee80211_if_conf *conf);
+ void (*bss_info_changed)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *info,
+ u32 changed);
void (*configure_filter)(struct ieee80211_hw *hw,
unsigned int changed_flags,
unsigned int *total_flags,
int (*set_key)(struct ieee80211_hw *hw, enum set_key_cmd cmd,
const u8 *local_address, const u8 *address,
struct ieee80211_key_conf *key);
- int (*set_ieee8021x)(struct ieee80211_hw *hw, int use_ieee8021x);
- int (*set_port_auth)(struct ieee80211_hw *hw, u8 *addr,
- int authorized);
+ void (*update_tkip_key)(struct ieee80211_hw *hw,
+ struct ieee80211_key_conf *conf, const u8 *address,
+ u32 iv32, u16 *phase1key);
int (*hw_scan)(struct ieee80211_hw *hw, u8 *ssid, size_t len);
int (*get_stats)(struct ieee80211_hw *hw,
struct ieee80211_low_level_stats *stats);
- int (*set_privacy_invoked)(struct ieee80211_hw *hw,
- int privacy_invoked);
- int (*get_sequence_counter)(struct ieee80211_hw *hw,
- u8* addr, u8 keyidx, u8 txrx,
- u32* iv32, u16* iv16);
+ void (*get_tkip_seq)(struct ieee80211_hw *hw, u8 hw_key_idx,
+ u32 *iv32, u16 *iv16);
int (*set_rts_threshold)(struct ieee80211_hw *hw, u32 value);
int (*set_frag_threshold)(struct ieee80211_hw *hw, u32 value);
int (*set_retry_limit)(struct ieee80211_hw *hw,
u32 short_retry, u32 long_retr);
- void (*sta_table_notification)(struct ieee80211_hw *hw,
- int num_sta);
- void (*erp_ie_changed)(struct ieee80211_hw *hw, u8 changes,
- int cts_protection, int preamble);
- int (*conf_tx)(struct ieee80211_hw *hw, int queue,
+ void (*sta_notify)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ enum sta_notify_cmd, const u8 *addr);
+ int (*conf_tx)(struct ieee80211_hw *hw, u16 queue,
const struct ieee80211_tx_queue_params *params);
int (*get_tx_stats)(struct ieee80211_hw *hw,
struct ieee80211_tx_queue_stats *stats);
u64 (*get_tsf)(struct ieee80211_hw *hw);
void (*reset_tsf)(struct ieee80211_hw *hw);
- int (*beacon_update)(struct ieee80211_hw *hw,
- struct sk_buff *skb,
- struct ieee80211_tx_control *control);
int (*tx_last_beacon)(struct ieee80211_hw *hw);
+ int (*ampdu_action)(struct ieee80211_hw *hw,
+ enum ieee80211_ampdu_mlme_action action,
+ const u8 *addr, u16 tid, u16 *ssn);
};
/**
/**
* ieee80211_register_hw - Register hardware device
*
- * You must call this function before any other functions
- * except ieee80211_register_hwmode.
+ * You must call this function before any other functions in
+ * mac80211. Note that before a hardware can be registered, you
+ * need to fill the contained wiphy's information.
*
* @hw: the device to register as returned by ieee80211_alloc_hw()
*/
extern char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw);
extern char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw);
extern char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw);
+extern char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw);
#endif
/**
* ieee80211_get_tx_led_name - get name of TX LED
#endif
}
+/**
+ * ieee80211_get_assoc_led_name - get name of association LED
+ *
+ * mac80211 creates a association LED trigger for each wireless hardware
+ * that can be used to drive LEDs if your driver registers a LED device.
+ * This function returns the name (or %NULL if not configured for LEDs)
+ * of the trigger so you can automatically link the LED device.
+ *
+ * @hw: the hardware to get the LED trigger name for
+ */
static inline char *ieee80211_get_assoc_led_name(struct ieee80211_hw *hw)
{
#ifdef CONFIG_MAC80211_LEDS
#endif
}
-
-/* Register a new hardware PHYMODE capability to the stack. */
-int ieee80211_register_hwmode(struct ieee80211_hw *hw,
- struct ieee80211_hw_mode *mode);
+/**
+ * ieee80211_get_radio_led_name - get name of radio LED
+ *
+ * mac80211 creates a radio change LED trigger for each wireless hardware
+ * that can be used to drive LEDs if your driver registers a LED device.
+ * This function returns the name (or %NULL if not configured for LEDs)
+ * of the trigger so you can automatically link the LED device.
+ *
+ * @hw: the hardware to get the LED trigger name for
+ */
+static inline char *ieee80211_get_radio_led_name(struct ieee80211_hw *hw)
+{
+#ifdef CONFIG_MAC80211_LEDS
+ return __ieee80211_get_radio_led_name(hw);
+#else
+ return NULL;
+#endif
+}
/**
* ieee80211_unregister_hw - Unregister a hardware device
*
* This function frees everything that was allocated, including the
* private data for the driver. You must call ieee80211_unregister_hw()
- * before calling this function
+ * before calling this function.
*
* @hw: the hardware to free
*/
* 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
* 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
* 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
- * 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(struct ieee80211_hw *hw,
- struct sk_buff *skb,
- struct ieee80211_tx_status *status);
+ struct sk_buff *skb);
+
+/**
+ * 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
+ */
void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw,
- struct sk_buff *skb,
- struct ieee80211_tx_status *status);
+ struct sk_buff *skb);
/**
* ieee80211_beacon_get - beacon generation function
* @hw: pointer obtained from ieee80211_alloc_hw().
- * @if_id: interface ID from &struct ieee80211_if_init_conf.
+ * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf.
* @control: will be filled with information needed to send this beacon.
*
* If the beacon frames are generated by the host system (i.e., not in
* is responsible of freeing it.
*/
struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
- int if_id,
- struct ieee80211_tx_control *control);
+ struct ieee80211_vif *vif);
/**
* ieee80211_rts_get - RTS frame generation function
* @hw: pointer obtained from ieee80211_alloc_hw().
- * @if_id: interface ID from &struct ieee80211_if_init_conf.
+ * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf.
* @frame: pointer to the frame that is going to be protected by the RTS.
* @frame_len: the frame length (in octets).
- * @frame_txctl: &struct ieee80211_tx_control of the frame.
+ * @frame_txctl: &struct ieee80211_tx_info of the frame.
* @rts: The buffer where to store the RTS frame.
*
* If the RTS frames are generated by the host system (i.e., not in
* the next RTS frame from the 802.11 code. The low-level is responsible
* for calling this function before and RTS frame is needed.
*/
-void ieee80211_rts_get(struct ieee80211_hw *hw, int if_id,
+void ieee80211_rts_get(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
const void *frame, size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl,
+ const struct ieee80211_tx_info *frame_txctl,
struct ieee80211_rts *rts);
/**
* ieee80211_rts_duration - Get the duration field for an RTS frame
* @hw: pointer obtained from ieee80211_alloc_hw().
- * @if_id: interface ID from &struct ieee80211_if_init_conf.
+ * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf.
* @frame_len: the length of the frame that is going to be protected by the RTS.
- * @frame_txctl: &struct ieee80211_tx_control of the frame.
+ * @frame_txctl: &struct ieee80211_tx_info of the frame.
*
* If the RTS is generated in firmware, but the host system must provide
* the duration field, the low-level driver uses this function to receive
* the duration field value in little-endian byteorder.
*/
-__le16 ieee80211_rts_duration(struct ieee80211_hw *hw, int if_id,
- size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl);
+__le16 ieee80211_rts_duration(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif, size_t frame_len,
+ const struct ieee80211_tx_info *frame_txctl);
/**
* ieee80211_ctstoself_get - CTS-to-self frame generation function
* @hw: pointer obtained from ieee80211_alloc_hw().
- * @if_id: interface ID from &struct ieee80211_if_init_conf.
+ * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf.
* @frame: pointer to the frame that is going to be protected by the CTS-to-self.
* @frame_len: the frame length (in octets).
- * @frame_txctl: &struct ieee80211_tx_control of the frame.
+ * @frame_txctl: &struct ieee80211_tx_info of the frame.
* @cts: The buffer where to store the CTS-to-self frame.
*
* If the CTS-to-self frames are generated by the host system (i.e., not in
* the next CTS-to-self frame from the 802.11 code. The low-level is responsible
* for calling this function before and CTS-to-self frame is needed.
*/
-void ieee80211_ctstoself_get(struct ieee80211_hw *hw, int if_id,
+void ieee80211_ctstoself_get(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
const void *frame, size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl,
+ const struct ieee80211_tx_info *frame_txctl,
struct ieee80211_cts *cts);
/**
* ieee80211_ctstoself_duration - Get the duration field for a CTS-to-self frame
* @hw: pointer obtained from ieee80211_alloc_hw().
- * @if_id: interface ID from &struct ieee80211_if_init_conf.
+ * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf.
* @frame_len: the length of the frame that is going to be protected by the CTS-to-self.
- * @frame_txctl: &struct ieee80211_tx_control of the frame.
+ * @frame_txctl: &struct ieee80211_tx_info of the frame.
*
* If the CTS-to-self is generated in firmware, but the host system must provide
* the duration field, the low-level driver uses this function to receive
* the duration field value in little-endian byteorder.
*/
-__le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, int if_id,
+__le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl);
+ const struct ieee80211_tx_info *frame_txctl);
/**
* ieee80211_generic_frame_duration - Calculate the duration field for a frame
* @hw: pointer obtained from ieee80211_alloc_hw().
- * @if_id: interface ID from &struct ieee80211_if_init_conf.
+ * @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).
*/
-__le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw, int if_id,
+__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
* @hw: pointer as obtained from ieee80211_alloc_hw().
- * @if_id: interface ID from &struct ieee80211_if_init_conf.
+ * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf.
* @control: will be filled with information needed to send returned frame.
*
* Function for accessing buffered broadcast and multicast frames. If
* use common code for all beacons.
*/
struct sk_buff *
-ieee80211_get_buffered_bc(struct ieee80211_hw *hw, int if_id,
- struct ieee80211_tx_control *control);
+ieee80211_get_buffered_bc(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
/**
* ieee80211_get_hdrlen_from_skb - get header length from data
*
* @skb: the frame
*/
-int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
+unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
/**
* ieee80211_get_hdrlen - get header length from frame control
int ieee80211_get_hdrlen(u16 fc);
/**
+ * ieee80211_hdrlen - get header length in bytes from frame control
+ * @fc: frame control field in little-endian format
+ */
+unsigned int ieee80211_hdrlen(__le16 fc);
+
+/**
+ * ieee80211_get_tkip_key - get a TKIP rc4 for skb
+ *
+ * This function computes a TKIP rc4 key for an skb. It computes
+ * a phase 1 key if needed (iv16 wraps around). This function is to
+ * be used by drivers which can do HW encryption but need to compute
+ * to phase 1/2 key in SW.
+ *
+ * @keyconf: the parameter passed with the set key
+ * @skb: the skb for which the key is needed
+ * @rc4key: a buffer to which the key will be written
+ * @type: TBD
+ * @key: TBD
+ */
+void ieee80211_get_tkip_key(struct ieee80211_key_conf *keyconf,
+ struct sk_buff *skb,
+ enum ieee80211_tkip_key_type type, u8 *key);
+/**
* ieee80211_wake_queue - wake specific queue
* @hw: pointer as obtained from ieee80211_alloc_hw().
* @queue: queue number (counted from zero).
void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue);
/**
- * ieee80211_start_queues - start all queues
- * @hw: pointer to as obtained from ieee80211_alloc_hw().
- *
- * Drivers should use this function instead of netif_start_queue.
- */
-void ieee80211_start_queues(struct ieee80211_hw *hw);
-
-/**
* ieee80211_stop_queues - stop all queues
* @hw: pointer as obtained from ieee80211_alloc_hw().
*
*/
void ieee80211_scan_completed(struct ieee80211_hw *hw);
+/**
+ * ieee80211_iterate_active_interfaces - iterate active interfaces
+ *
+ * This function iterates over the interfaces associated with a given
+ * hardware that are currently active and calls the callback for them.
+ * This function allows the iterator function to sleep, when the iterator
+ * function is atomic @ieee80211_iterate_active_interfaces_atomic can
+ * be used.
+ *
+ * @hw: the hardware struct of which the interfaces should be iterated over
+ * @iterator: the iterator function to call
+ * @data: first argument of the iterator function
+ */
+void ieee80211_iterate_active_interfaces(struct ieee80211_hw *hw,
+ void (*iterator)(void *data, u8 *mac,
+ struct ieee80211_vif *vif),
+ void *data);
+
+/**
+ * ieee80211_iterate_active_interfaces_atomic - iterate active interfaces
+ *
+ * This function iterates over the interfaces associated with a given
+ * hardware that are currently active and calls the callback for them.
+ * This function requires the iterator callback function to be atomic,
+ * if that is not desired, use @ieee80211_iterate_active_interfaces instead.
+ *
+ * @hw: the hardware struct of which the interfaces should be iterated over
+ * @iterator: the iterator function to call, cannot sleep
+ * @data: first argument of the iterator function
+ */
+void ieee80211_iterate_active_interfaces_atomic(struct ieee80211_hw *hw,
+ void (*iterator)(void *data,
+ u8 *mac,
+ 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);
+
+/**
+ * ieee80211_notify_mac - low level driver notification
+ * @hw: pointer as obtained from ieee80211_alloc_hw().
+ * @notif_type: enum ieee80211_notification_types
+ *
+ * This function must be called by low level driver to inform mac80211 of
+ * low level driver status change or force mac80211 to re-assoc for low
+ * level driver internal error that require re-assoc.
+ */
+void ieee80211_notify_mac(struct ieee80211_hw *hw,
+ enum ieee80211_notification_types notif_type);
#endif /* MAC80211_H */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff