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#ifndef __fw_api_tx_h__
#define __fw_api_tx_h__
/**
* enum iwl_tx_flags - bitmasks for tx_flags in TX command
* @TX_CMD_FLG_PROT_REQUIRE: use RTS or CTS-to-self to protect the frame
* @TX_CMD_FLG_WRITE_TX_POWER: update current tx power value in the mgmt frame
* @TX_CMD_FLG_ACK: expect ACK from receiving station
* @TX_CMD_FLG_STA_RATE: use RS table with initial index from the TX command.
* Otherwise, use rate_n_flags from the TX command
* @TX_CMD_FLG_BAR: this frame is a BA request, immediate BAR is expected
* Must set TX_CMD_FLG_ACK with this flag.
* @TX_CMD_FLG_VHT_NDPA: mark frame is NDPA for VHT beamformer sequence
* @TX_CMD_FLG_HT_NDPA: mark frame is NDPA for HT beamformer sequence
* @TX_CMD_FLG_CSI_FDBK2HOST: mark to send feedback to host (only if good CRC)
* @TX_CMD_FLG_BT_PRIO_POS: the position of the BT priority (bit 11 is ignored
* on old firmwares).
* @TX_CMD_FLG_BT_DIS: disable BT priority for this frame
* @TX_CMD_FLG_SEQ_CTL: set if FW should override the sequence control.
* Should be set for mgmt, non-QOS data, mcast, bcast and in scan command
* @TX_CMD_FLG_MORE_FRAG: this frame is non-last MPDU
* @TX_CMD_FLG_TSF: FW should calculate and insert TSF in the frame
* Should be set for beacons and probe responses
* @TX_CMD_FLG_CALIB: activate PA TX power calibrations
* @TX_CMD_FLG_KEEP_SEQ_CTL: if seq_ctl is set, don't increase inner seq count
* @TX_CMD_FLG_MH_PAD: driver inserted 2 byte padding after MAC header.
* Should be set for 26/30 length MAC headers
* @TX_CMD_FLG_RESP_TO_DRV: zero this if the response should go only to FW
* @TX_CMD_FLG_CCMP_AGG: this frame uses CCMP for aggregation acceleration
* @TX_CMD_FLG_TKIP_MIC_DONE: FW already performed TKIP MIC calculation
* @TX_CMD_FLG_DUR: disable duration overwriting used in PS-Poll Assoc-id
* @TX_CMD_FLG_FW_DROP: FW should mark frame to be dropped
* @TX_CMD_FLG_EXEC_PAPD: execute PAPD
* @TX_CMD_FLG_PAPD_TYPE: 0 for reference power, 1 for nominal power
* @TX_CMD_FLG_HCCA_CHUNK: mark start of TSPEC chunk
*/
enum iwl_tx_flags {
TX_CMD_FLG_PROT_REQUIRE = BIT(0),
TX_CMD_FLG_WRITE_TX_POWER = BIT(1),
TX_CMD_FLG_ACK = BIT(3),
TX_CMD_FLG_STA_RATE = BIT(4),
TX_CMD_FLG_BAR = BIT(6),
TX_CMD_FLG_TXOP_PROT = BIT(7),
TX_CMD_FLG_VHT_NDPA = BIT(8),
TX_CMD_FLG_HT_NDPA = BIT(9),
TX_CMD_FLG_CSI_FDBK2HOST = BIT(10),
TX_CMD_FLG_BT_PRIO_POS = 11,
TX_CMD_FLG_BT_DIS = BIT(12),
TX_CMD_FLG_SEQ_CTL = BIT(13),
TX_CMD_FLG_MORE_FRAG = BIT(14),
TX_CMD_FLG_TSF = BIT(16),
TX_CMD_FLG_CALIB = BIT(17),
TX_CMD_FLG_KEEP_SEQ_CTL = BIT(18),
TX_CMD_FLG_MH_PAD = BIT(20),
TX_CMD_FLG_RESP_TO_DRV = BIT(21),
TX_CMD_FLG_CCMP_AGG = BIT(22),
TX_CMD_FLG_TKIP_MIC_DONE = BIT(23),
TX_CMD_FLG_DUR = BIT(25),
TX_CMD_FLG_FW_DROP = BIT(26),
TX_CMD_FLG_EXEC_PAPD = BIT(27),
TX_CMD_FLG_PAPD_TYPE = BIT(28),
TX_CMD_FLG_HCCA_CHUNK = BIT(31)
}; /* TX_FLAGS_BITS_API_S_VER_1 */
/*
* TX command security control
*/
#define TX_CMD_SEC_WEP 0x01
#define TX_CMD_SEC_CCM 0x02
#define TX_CMD_SEC_TKIP 0x03
#define TX_CMD_SEC_EXT 0x04
#define TX_CMD_SEC_MSK 0x07
#define TX_CMD_SEC_WEP_KEY_IDX_POS 6
#define TX_CMD_SEC_WEP_KEY_IDX_MSK 0xc0
#define TX_CMD_SEC_KEY128 0x08
/* TODO: how does these values are OK with only 16 bit variable??? */
/*
* TX command next frame info
*
* bits 0:2 - security control (TX_CMD_SEC_*)
* bit 3 - immediate ACK required
* bit 4 - rate is taken from STA table
* bit 5 - frame belongs to BA stream
* bit 6 - immediate BA response expected
* bit 7 - unused
* bits 8:15 - Station ID
* bits 16:31 - rate
*/
#define TX_CMD_NEXT_FRAME_ACK_MSK (0x8)
#define TX_CMD_NEXT_FRAME_STA_RATE_MSK (0x10)
#define TX_CMD_NEXT_FRAME_BA_MSK (0x20)
#define TX_CMD_NEXT_FRAME_IMM_BA_RSP_MSK (0x40)
#define TX_CMD_NEXT_FRAME_FLAGS_MSK (0xf8)
#define TX_CMD_NEXT_FRAME_STA_ID_MSK (0xff00)
#define TX_CMD_NEXT_FRAME_STA_ID_POS (8)
#define TX_CMD_NEXT_FRAME_RATE_MSK (0xffff0000)
#define TX_CMD_NEXT_FRAME_RATE_POS (16)
/*
* TX command Frame life time in us - to be written in pm_frame_timeout
*/
#define TX_CMD_LIFE_TIME_INFINITE 0xFFFFFFFF
#define TX_CMD_LIFE_TIME_DEFAULT 2000000 /* 2000 ms*/
#define TX_CMD_LIFE_TIME_PROBE_RESP 40000 /* 40 ms */
#define TX_CMD_LIFE_TIME_EXPIRED_FRAME 0
/*
* TID for non QoS frames - to be written in tid_tspec
*/
#define IWL_TID_NON_QOS IWL_MAX_TID_COUNT
/*
* Limits on the retransmissions - to be written in {data,rts}_retry_limit
*/
#define IWL_DEFAULT_TX_RETRY 15
#define IWL_MGMT_DFAULT_RETRY_LIMIT 3
#define IWL_RTS_DFAULT_RETRY_LIMIT 60
#define IWL_BAR_DFAULT_RETRY_LIMIT 60
#define IWL_LOW_RETRY_LIMIT 7
/* TODO: complete documentation for try_cnt and btkill_cnt */
/**
* struct iwl_tx_cmd - TX command struct to FW
* ( TX_CMD = 0x1c )
* @len: in bytes of the payload, see below for details
* @tx_flags: combination of TX_CMD_FLG_*
* @rate_n_flags: rate for *all* Tx attempts, if TX_CMD_FLG_STA_RATE_MSK is
* cleared. Combination of RATE_MCS_*
* @sta_id: index of destination station in FW station table
* @sec_ctl: security control, TX_CMD_SEC_*
* @initial_rate_index: index into the the rate table for initial TX attempt.
* Applied if TX_CMD_FLG_STA_RATE_MSK is set, normally 0 for data frames.
* @key: security key
* @next_frame_flags: TX_CMD_SEC_* and TX_CMD_NEXT_FRAME_*
* @life_time: frame life time (usecs??)
* @dram_lsb_ptr: Physical address of scratch area in the command (try_cnt +
* btkill_cnd + reserved), first 32 bits. "0" disables usage.
* @dram_msb_ptr: upper bits of the scratch physical address
* @rts_retry_limit: max attempts for RTS
* @data_retry_limit: max attempts to send the data packet
* @tid_spec: TID/tspec
* @pm_frame_timeout: PM TX frame timeout
*
* The byte count (both len and next_frame_len) includes MAC header
* (24/26/30/32 bytes)
* + 2 bytes pad if 26/30 header size
* + 8 byte IV for CCM or TKIP (not used for WEP)
* + Data payload
* + 8-byte MIC (not used for CCM/WEP)
* It does not include post-MAC padding, i.e.,
* MIC (CCM) 8 bytes, ICV (WEP/TKIP/CKIP) 4 bytes, CRC 4 bytes.
* Range of len: 14-2342 bytes.
*
* After the struct fields the MAC header is placed, plus any padding,
* and then the actial payload.
*/
struct iwl_tx_cmd {
__le16 len;
__le16 next_frame_len;
__le32 tx_flags;
struct {
u8 try_cnt;
u8 btkill_cnt;
__le16 reserved;
} scratch; /* DRAM_SCRATCH_API_U_VER_1 */
__le32 rate_n_flags;
u8 sta_id;
u8 sec_ctl;
u8 initial_rate_index;
u8 reserved2;
u8 key[16];
__le32 reserved3;
__le32 life_time;
__le32 dram_lsb_ptr;
u8 dram_msb_ptr;
u8 rts_retry_limit;
u8 data_retry_limit;
u8 tid_tspec;
__le16 pm_frame_timeout;
__le16 reserved4;
u8 payload[0];
struct ieee80211_hdr hdr[0];
} __packed; /* TX_CMD_API_S_VER_3 */
/*
* TX response related data
*/
/*
* enum iwl_tx_status - status that is returned by the fw after attempts to Tx
* @TX_STATUS_SUCCESS:
* @TX_STATUS_DIRECT_DONE:
* @TX_STATUS_POSTPONE_DELAY:
* @TX_STATUS_POSTPONE_FEW_BYTES:
* @TX_STATUS_POSTPONE_BT_PRIO:
* @TX_STATUS_POSTPONE_QUIET_PERIOD:
* @TX_STATUS_POSTPONE_CALC_TTAK:
* @TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY:
* @TX_STATUS_FAIL_SHORT_LIMIT:
* @TX_STATUS_FAIL_LONG_LIMIT:
* @TX_STATUS_FAIL_UNDERRUN:
* @TX_STATUS_FAIL_DRAIN_FLOW:
* @TX_STATUS_FAIL_RFKILL_FLUSH:
* @TX_STATUS_FAIL_LIFE_EXPIRE:
* @TX_STATUS_FAIL_DEST_PS:
* @TX_STATUS_FAIL_HOST_ABORTED:
* @TX_STATUS_FAIL_BT_RETRY:
* @TX_STATUS_FAIL_STA_INVALID:
* @TX_TATUS_FAIL_FRAG_DROPPED:
* @TX_STATUS_FAIL_TID_DISABLE:
* @TX_STATUS_FAIL_FIFO_FLUSHED:
* @TX_STATUS_FAIL_SMALL_CF_POLL:
* @TX_STATUS_FAIL_FW_DROP:
* @TX_STATUS_FAIL_STA_COLOR_MISMATCH: mismatch between color of Tx cmd and
* STA table
* @TX_FRAME_STATUS_INTERNAL_ABORT:
* @TX_MODE_MSK:
* @TX_MODE_NO_BURST:
* @TX_MODE_IN_BURST_SEQ:
* @TX_MODE_FIRST_IN_BURST:
* @TX_QUEUE_NUM_MSK:
*
* Valid only if frame_count =1
* TODO: complete documentation
*/
enum iwl_tx_status {
TX_STATUS_MSK = 0x000000ff,
TX_STATUS_SUCCESS = 0x01,
TX_STATUS_DIRECT_DONE = 0x02,
/* postpone TX */
TX_STATUS_POSTPONE_DELAY = 0x40,
TX_STATUS_POSTPONE_FEW_BYTES = 0x41,
TX_STATUS_POSTPONE_BT_PRIO = 0x42,
TX_STATUS_POSTPONE_QUIET_PERIOD = 0x43,
TX_STATUS_POSTPONE_CALC_TTAK = 0x44,
/* abort TX */
TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY = 0x81,
TX_STATUS_FAIL_SHORT_LIMIT = 0x82,
TX_STATUS_FAIL_LONG_LIMIT = 0x83,
TX_STATUS_FAIL_UNDERRUN = 0x84,
TX_STATUS_FAIL_DRAIN_FLOW = 0x85,
TX_STATUS_FAIL_RFKILL_FLUSH = 0x86,
TX_STATUS_FAIL_LIFE_EXPIRE = 0x87,
TX_STATUS_FAIL_DEST_PS = 0x88,
TX_STATUS_FAIL_HOST_ABORTED = 0x89,
TX_STATUS_FAIL_BT_RETRY = 0x8a,
TX_STATUS_FAIL_STA_INVALID = 0x8b,
TX_STATUS_FAIL_FRAG_DROPPED = 0x8c,
TX_STATUS_FAIL_TID_DISABLE = 0x8d,
TX_STATUS_FAIL_FIFO_FLUSHED = 0x8e,
TX_STATUS_FAIL_SMALL_CF_POLL = 0x8f,
TX_STATUS_FAIL_FW_DROP = 0x90,
TX_STATUS_FAIL_STA_COLOR_MISMATCH = 0x91,
TX_STATUS_INTERNAL_ABORT = 0x92,
TX_MODE_MSK = 0x00000f00,
TX_MODE_NO_BURST = 0x00000000,
TX_MODE_IN_BURST_SEQ = 0x00000100,
TX_MODE_FIRST_IN_BURST = 0x00000200,
TX_QUEUE_NUM_MSK = 0x0001f000,
TX_NARROW_BW_MSK = 0x00060000,
TX_NARROW_BW_1DIV2 = 0x00020000,
TX_NARROW_BW_1DIV4 = 0x00040000,
TX_NARROW_BW_1DIV8 = 0x00060000,
};
/*
* enum iwl_tx_agg_status - TX aggregation status
* @AGG_TX_STATE_STATUS_MSK:
* @AGG_TX_STATE_TRANSMITTED:
* @AGG_TX_STATE_UNDERRUN:
* @AGG_TX_STATE_BT_PRIO:
* @AGG_TX_STATE_FEW_BYTES:
* @AGG_TX_STATE_ABORT:
* @AGG_TX_STATE_LAST_SENT_TTL:
* @AGG_TX_STATE_LAST_SENT_TRY_CNT:
* @AGG_TX_STATE_LAST_SENT_BT_KILL:
* @AGG_TX_STATE_SCD_QUERY:
* @AGG_TX_STATE_TEST_BAD_CRC32:
* @AGG_TX_STATE_RESPONSE:
* @AGG_TX_STATE_DUMP_TX:
* @AGG_TX_STATE_DELAY_TX:
* @AGG_TX_STATE_TRY_CNT_MSK: Retry count for 1st frame in aggregation (retries
* occur if tx failed for this frame when it was a member of a previous
* aggregation block). If rate scaling is used, retry count indicates the
* rate table entry used for all frames in the new agg.
*@ AGG_TX_STATE_SEQ_NUM_MSK: Command ID and sequence number of Tx command for
* this frame
*
* TODO: complete documentation
*/
enum iwl_tx_agg_status {
AGG_TX_STATE_STATUS_MSK = 0x00fff,
AGG_TX_STATE_TRANSMITTED = 0x000,
AGG_TX_STATE_UNDERRUN = 0x001,
AGG_TX_STATE_BT_PRIO = 0x002,
AGG_TX_STATE_FEW_BYTES = 0x004,
AGG_TX_STATE_ABORT = 0x008,
AGG_TX_STATE_LAST_SENT_TTL = 0x010,
AGG_TX_STATE_LAST_SENT_TRY_CNT = 0x020,
AGG_TX_STATE_LAST_SENT_BT_KILL = 0x040,
AGG_TX_STATE_SCD_QUERY = 0x080,
AGG_TX_STATE_TEST_BAD_CRC32 = 0x0100,
AGG_TX_STATE_RESPONSE = 0x1ff,
AGG_TX_STATE_DUMP_TX = 0x200,
AGG_TX_STATE_DELAY_TX = 0x400,
AGG_TX_STATE_TRY_CNT_POS = 12,
AGG_TX_STATE_TRY_CNT_MSK = 0xf << AGG_TX_STATE_TRY_CNT_POS,
};
#define AGG_TX_STATE_LAST_SENT_MSK (AGG_TX_STATE_LAST_SENT_TTL| \
AGG_TX_STATE_LAST_SENT_TRY_CNT| \
AGG_TX_STATE_LAST_SENT_BT_KILL)
/*
* The mask below describes a status where we are absolutely sure that the MPDU
* wasn't sent. For BA/Underrun we cannot be that sure. All we know that we've
* written the bytes to the TXE, but we know nothing about what the DSP did.
*/
#define AGG_TX_STAT_FRAME_NOT_SENT (AGG_TX_STATE_FEW_BYTES | \
AGG_TX_STATE_ABORT | \
AGG_TX_STATE_SCD_QUERY)
/*
* REPLY_TX = 0x1c (response)
*
* This response may be in one of two slightly different formats, indicated
* by the frame_count field:
*
* 1) No aggregation (frame_count == 1). This reports Tx results for a single
* frame. Multiple attempts, at various bit rates, may have been made for
* this frame.
*
* 2) Aggregation (frame_count > 1). This reports Tx results for two or more
* frames that used block-acknowledge. All frames were transmitted at
* same rate. Rate scaling may have been used if first frame in this new
* agg block failed in previous agg block(s).
*
* Note that, for aggregation, ACK (block-ack) status is not delivered
* here; block-ack has not been received by the time the device records
* this status.
* This status relates to reasons the tx might have been blocked or aborted
* within the device, rather than whether it was received successfully by
* the destination station.
*/
/**
* struct agg_tx_status - per packet TX aggregation status
* @status: enum iwl_tx_agg_status
* @sequence: Sequence # for this frame's Tx cmd (not SSN!)
*/
struct agg_tx_status {
__le16 status;
__le16 sequence;
} __packed;
/*
* definitions for initial rate index field
* bits [3:0] initial rate index
* bits [6:4] rate table color, used for the initial rate
* bit-7 invalid rate indication
*/
#define TX_RES_INIT_RATE_INDEX_MSK 0x0f
#define TX_RES_RATE_TABLE_COLOR_MSK 0x70
#define TX_RES_INV_RATE_INDEX_MSK 0x80
#define IWL_MVM_TX_RES_GET_TID(_ra_tid) ((_ra_tid) & 0x0f)
#define IWL_MVM_TX_RES_GET_RA(_ra_tid) ((_ra_tid) >> 4)
/**
* struct iwl_mvm_tx_resp - notifies that fw is TXing a packet
* ( REPLY_TX = 0x1c )
* @frame_count: 1 no aggregation, >1 aggregation
* @bt_kill_count: num of times blocked by bluetooth (unused for agg)
* @failure_rts: num of failures due to unsuccessful RTS
* @failure_frame: num failures due to no ACK (unused for agg)
* @initial_rate: for non-agg: rate of the successful Tx. For agg: rate of the
* Tx of all the batch. RATE_MCS_*
* @wireless_media_time: for non-agg: RTS + CTS + frame tx attempts time + ACK.
* for agg: RTS + CTS + aggregation tx time + block-ack time.
* in usec.
* @pa_status: tx power info
* @pa_integ_res_a: tx power info
* @pa_integ_res_b: tx power info
* @pa_integ_res_c: tx power info
* @measurement_req_id: tx power info
* @tfd_info: TFD information set by the FH
* @seq_ctl: sequence control from the Tx cmd
* @byte_cnt: byte count from the Tx cmd
* @tlc_info: TLC rate info
* @ra_tid: bits [3:0] = ra, bits [7:4] = tid
* @frame_ctrl: frame control
* @status: for non-agg: frame status TX_STATUS_*
* for agg: status of 1st frame, AGG_TX_STATE_*; other frame status fields
* follow this one, up to frame_count.
*
* After the array of statuses comes the SSN of the SCD. Look at
* %iwl_mvm_get_scd_ssn for more details.
*/
struct iwl_mvm_tx_resp {
u8 frame_count;
u8 bt_kill_count;
u8 failure_rts;
u8 failure_frame;
__le32 initial_rate;
__le16 wireless_media_time;
u8 pa_status;
u8 pa_integ_res_a[3];
u8 pa_integ_res_b[3];
u8 pa_integ_res_c[3];
__le16 measurement_req_id;
u8 reduced_tpc;
u8 reserved;
__le32 tfd_info;
__le16 seq_ctl;
__le16 byte_cnt;
u8 tlc_info;
u8 ra_tid;
__le16 frame_ctrl;
struct agg_tx_status status;
} __packed; /* TX_RSP_API_S_VER_3 */
/**
* struct iwl_mvm_ba_notif - notifies about reception of BA
* ( BA_NOTIF = 0xc5 )
* @sta_addr_lo32: lower 32 bits of the MAC address
* @sta_addr_hi16: upper 16 bits of the MAC address
* @sta_id: Index of recipient (BA-sending) station in fw's station table
* @tid: tid of the session
* @seq_ctl:
* @bitmap: the bitmap of the BA notification as seen in the air
* @scd_flow: the tx queue this BA relates to
* @scd_ssn: the index of the last contiguously sent packet
* @txed: number of Txed frames in this batch
* @txed_2_done: number of Acked frames in this batch
*/
struct iwl_mvm_ba_notif {
__le32 sta_addr_lo32;
__le16 sta_addr_hi16;
__le16 reserved;
u8 sta_id;
u8 tid;
__le16 seq_ctl;
__le64 bitmap;
__le16 scd_flow;
__le16 scd_ssn;
u8 txed;
u8 txed_2_done;
__le16 reserved1;
} __packed;
/*
* struct iwl_mac_beacon_cmd - beacon template command
* @tx: the tx commands associated with the beacon frame
* @template_id: currently equal to the mac context id of the coresponding
* mac.
* @tim_idx: the offset of the tim IE in the beacon
* @tim_size: the length of the tim IE
* @frame: the template of the beacon frame
*/
struct iwl_mac_beacon_cmd {
struct iwl_tx_cmd tx;
__le32 template_id;
__le32 tim_idx;
__le32 tim_size;
struct ieee80211_hdr frame[0];
} __packed;
struct iwl_beacon_notif {
struct iwl_mvm_tx_resp beacon_notify_hdr;
__le64 tsf;
__le32 ibss_mgr_status;
} __packed;
/**
* struct iwl_extended_beacon_notif - notifies about beacon transmission
* @beacon_notify_hdr: tx response command associated with the beacon
* @tsf: last beacon tsf
* @ibss_mgr_status: whether IBSS is manager
* @gp2: last beacon time in gp2
*/
struct iwl_extended_beacon_notif {
struct iwl_mvm_tx_resp beacon_notify_hdr;
__le64 tsf;
__le32 ibss_mgr_status;
__le32 gp2;
} __packed; /* BEACON_NTFY_API_S_VER_5 */
/**
* enum iwl_dump_control - dump (flush) control flags
* @DUMP_TX_FIFO_FLUSH: Dump MSDUs until the the FIFO is empty
* and the TFD queues are empty.
*/
enum iwl_dump_control {
DUMP_TX_FIFO_FLUSH = BIT(1),
};
/**
* struct iwl_tx_path_flush_cmd -- queue/FIFO flush command
* @queues_ctl: bitmap of queues to flush
* @flush_ctl: control flags
* @reserved: reserved
*/
struct iwl_tx_path_flush_cmd {
__le32 queues_ctl;
__le16 flush_ctl;
__le16 reserved;
} __packed; /* TX_PATH_FLUSH_CMD_API_S_VER_1 */
/**
* iwl_mvm_get_scd_ssn - returns the SSN of the SCD
* @tx_resp: the Tx response from the fw (agg or non-agg)
*
* When the fw sends an AMPDU, it fetches the MPDUs one after the other. Since
* it can't know that everything will go well until the end of the AMPDU, it
* can't know in advance the number of MPDUs that will be sent in the current
* batch. This is why it writes the agg Tx response while it fetches the MPDUs.
* Hence, it can't know in advance what the SSN of the SCD will be at the end
* of the batch. This is why the SSN of the SCD is written at the end of the
* whole struct at a variable offset. This function knows how to cope with the
* variable offset and returns the SSN of the SCD.
*/
static inline u32 iwl_mvm_get_scd_ssn(struct iwl_mvm_tx_resp *tx_resp)
{
return le32_to_cpup((__le32 *)&tx_resp->status +
tx_resp->frame_count) & 0xfff;
}
#endif /* __fw_api_tx_h__ */