1/****************************************************************************** 2 * 3 * This file is provided under a dual BSD/GPLv2 license. When using or 4 * redistributing this file, you may do so under either license. 5 * 6 * GPL LICENSE SUMMARY 7 * 8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of version 2 of the GNU General Public License as 12 * published by the Free Software Foundation. 13 * 14 * This program is distributed in the hope that it will be useful, but 15 * WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 17 * General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 22 * USA 23 * 24 * The full GNU General Public License is included in this distribution 25 * in the file called COPYING. 26 * 27 * Contact Information: 28 * Intel Linux Wireless <ilw@linux.intel.com> 29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 30 * 31 * BSD LICENSE 32 * 33 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 34 * All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 40 * * Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * * Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in 44 * the documentation and/or other materials provided with the 45 * distribution. 46 * * Neither the name Intel Corporation nor the names of its 47 * contributors may be used to endorse or promote products derived 48 * from this software without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 61 *****************************************************************************/ 62 63#ifndef __fw_api_tx_h__ 64#define __fw_api_tx_h__ 65 66/** 67 * enum iwl_tx_flags - bitmasks for tx_flags in TX command 68 * @TX_CMD_FLG_PROT_REQUIRE: use RTS or CTS-to-self to protect the frame 69 * @TX_CMD_FLG_WRITE_TX_POWER: update current tx power value in the mgmt frame 70 * @TX_CMD_FLG_ACK: expect ACK from receiving station 71 * @TX_CMD_FLG_STA_RATE: use RS table with initial index from the TX command. 72 * Otherwise, use rate_n_flags from the TX command 73 * @TX_CMD_FLG_BAR: this frame is a BA request, immediate BAR is expected 74 * Must set TX_CMD_FLG_ACK with this flag. 75 * @TX_CMD_FLG_VHT_NDPA: mark frame is NDPA for VHT beamformer sequence 76 * @TX_CMD_FLG_HT_NDPA: mark frame is NDPA for HT beamformer sequence 77 * @TX_CMD_FLG_CSI_FDBK2HOST: mark to send feedback to host (only if good CRC) 78 * @TX_CMD_FLG_BT_PRIO_POS: the position of the BT priority (bit 11 is ignored 79 * on old firmwares). 80 * @TX_CMD_FLG_BT_DIS: disable BT priority for this frame 81 * @TX_CMD_FLG_SEQ_CTL: set if FW should override the sequence control. 82 * Should be set for mgmt, non-QOS data, mcast, bcast and in scan command 83 * @TX_CMD_FLG_MORE_FRAG: this frame is non-last MPDU 84 * @TX_CMD_FLG_TSF: FW should calculate and insert TSF in the frame 85 * Should be set for beacons and probe responses 86 * @TX_CMD_FLG_CALIB: activate PA TX power calibrations 87 * @TX_CMD_FLG_KEEP_SEQ_CTL: if seq_ctl is set, don't increase inner seq count 88 * @TX_CMD_FLG_MH_PAD: driver inserted 2 byte padding after MAC header. 89 * Should be set for 26/30 length MAC headers 90 * @TX_CMD_FLG_RESP_TO_DRV: zero this if the response should go only to FW 91 * @TX_CMD_FLG_CCMP_AGG: this frame uses CCMP for aggregation acceleration 92 * @TX_CMD_FLG_TKIP_MIC_DONE: FW already performed TKIP MIC calculation 93 * @TX_CMD_FLG_DUR: disable duration overwriting used in PS-Poll Assoc-id 94 * @TX_CMD_FLG_FW_DROP: FW should mark frame to be dropped 95 * @TX_CMD_FLG_EXEC_PAPD: execute PAPD 96 * @TX_CMD_FLG_PAPD_TYPE: 0 for reference power, 1 for nominal power 97 * @TX_CMD_FLG_HCCA_CHUNK: mark start of TSPEC chunk 98 */ 99enum iwl_tx_flags { 100 TX_CMD_FLG_PROT_REQUIRE = BIT(0), 101 TX_CMD_FLG_WRITE_TX_POWER = BIT(1), 102 TX_CMD_FLG_ACK = BIT(3), 103 TX_CMD_FLG_STA_RATE = BIT(4), 104 TX_CMD_FLG_BAR = BIT(6), 105 TX_CMD_FLG_TXOP_PROT = BIT(7), 106 TX_CMD_FLG_VHT_NDPA = BIT(8), 107 TX_CMD_FLG_HT_NDPA = BIT(9), 108 TX_CMD_FLG_CSI_FDBK2HOST = BIT(10), 109 TX_CMD_FLG_BT_PRIO_POS = 11, 110 TX_CMD_FLG_BT_DIS = BIT(12), 111 TX_CMD_FLG_SEQ_CTL = BIT(13), 112 TX_CMD_FLG_MORE_FRAG = BIT(14), 113 TX_CMD_FLG_TSF = BIT(16), 114 TX_CMD_FLG_CALIB = BIT(17), 115 TX_CMD_FLG_KEEP_SEQ_CTL = BIT(18), 116 TX_CMD_FLG_MH_PAD = BIT(20), 117 TX_CMD_FLG_RESP_TO_DRV = BIT(21), 118 TX_CMD_FLG_CCMP_AGG = BIT(22), 119 TX_CMD_FLG_TKIP_MIC_DONE = BIT(23), 120 TX_CMD_FLG_DUR = BIT(25), 121 TX_CMD_FLG_FW_DROP = BIT(26), 122 TX_CMD_FLG_EXEC_PAPD = BIT(27), 123 TX_CMD_FLG_PAPD_TYPE = BIT(28), 124 TX_CMD_FLG_HCCA_CHUNK = BIT(31) 125}; /* TX_FLAGS_BITS_API_S_VER_1 */ 126 127/* 128 * TX command security control 129 */ 130#define TX_CMD_SEC_WEP 0x01 131#define TX_CMD_SEC_CCM 0x02 132#define TX_CMD_SEC_TKIP 0x03 133#define TX_CMD_SEC_EXT 0x04 134#define TX_CMD_SEC_MSK 0x07 135#define TX_CMD_SEC_WEP_KEY_IDX_POS 6 136#define TX_CMD_SEC_WEP_KEY_IDX_MSK 0xc0 137#define TX_CMD_SEC_KEY128 0x08 138 139/* TODO: how does these values are OK with only 16 bit variable??? */ 140/* 141 * TX command next frame info 142 * 143 * bits 0:2 - security control (TX_CMD_SEC_*) 144 * bit 3 - immediate ACK required 145 * bit 4 - rate is taken from STA table 146 * bit 5 - frame belongs to BA stream 147 * bit 6 - immediate BA response expected 148 * bit 7 - unused 149 * bits 8:15 - Station ID 150 * bits 16:31 - rate 151 */ 152#define TX_CMD_NEXT_FRAME_ACK_MSK (0x8) 153#define TX_CMD_NEXT_FRAME_STA_RATE_MSK (0x10) 154#define TX_CMD_NEXT_FRAME_BA_MSK (0x20) 155#define TX_CMD_NEXT_FRAME_IMM_BA_RSP_MSK (0x40) 156#define TX_CMD_NEXT_FRAME_FLAGS_MSK (0xf8) 157#define TX_CMD_NEXT_FRAME_STA_ID_MSK (0xff00) 158#define TX_CMD_NEXT_FRAME_STA_ID_POS (8) 159#define TX_CMD_NEXT_FRAME_RATE_MSK (0xffff0000) 160#define TX_CMD_NEXT_FRAME_RATE_POS (16) 161 162/* 163 * TX command Frame life time in us - to be written in pm_frame_timeout 164 */ 165#define TX_CMD_LIFE_TIME_INFINITE 0xFFFFFFFF 166#define TX_CMD_LIFE_TIME_DEFAULT 2000000 /* 2000 ms*/ 167#define TX_CMD_LIFE_TIME_PROBE_RESP 40000 /* 40 ms */ 168#define TX_CMD_LIFE_TIME_EXPIRED_FRAME 0 169 170/* 171 * TID for non QoS frames - to be written in tid_tspec 172 */ 173#define IWL_TID_NON_QOS IWL_MAX_TID_COUNT 174 175/* 176 * Limits on the retransmissions - to be written in {data,rts}_retry_limit 177 */ 178#define IWL_DEFAULT_TX_RETRY 15 179#define IWL_MGMT_DFAULT_RETRY_LIMIT 3 180#define IWL_RTS_DFAULT_RETRY_LIMIT 60 181#define IWL_BAR_DFAULT_RETRY_LIMIT 60 182#define IWL_LOW_RETRY_LIMIT 7 183 184/* TODO: complete documentation for try_cnt and btkill_cnt */ 185/** 186 * struct iwl_tx_cmd - TX command struct to FW 187 * ( TX_CMD = 0x1c ) 188 * @len: in bytes of the payload, see below for details 189 * @tx_flags: combination of TX_CMD_FLG_* 190 * @rate_n_flags: rate for *all* Tx attempts, if TX_CMD_FLG_STA_RATE_MSK is 191 * cleared. Combination of RATE_MCS_* 192 * @sta_id: index of destination station in FW station table 193 * @sec_ctl: security control, TX_CMD_SEC_* 194 * @initial_rate_index: index into the the rate table for initial TX attempt. 195 * Applied if TX_CMD_FLG_STA_RATE_MSK is set, normally 0 for data frames. 196 * @key: security key 197 * @next_frame_flags: TX_CMD_SEC_* and TX_CMD_NEXT_FRAME_* 198 * @life_time: frame life time (usecs??) 199 * @dram_lsb_ptr: Physical address of scratch area in the command (try_cnt + 200 * btkill_cnd + reserved), first 32 bits. "0" disables usage. 201 * @dram_msb_ptr: upper bits of the scratch physical address 202 * @rts_retry_limit: max attempts for RTS 203 * @data_retry_limit: max attempts to send the data packet 204 * @tid_spec: TID/tspec 205 * @pm_frame_timeout: PM TX frame timeout 206 * 207 * The byte count (both len and next_frame_len) includes MAC header 208 * (24/26/30/32 bytes) 209 * + 2 bytes pad if 26/30 header size 210 * + 8 byte IV for CCM or TKIP (not used for WEP) 211 * + Data payload 212 * + 8-byte MIC (not used for CCM/WEP) 213 * It does not include post-MAC padding, i.e., 214 * MIC (CCM) 8 bytes, ICV (WEP/TKIP/CKIP) 4 bytes, CRC 4 bytes. 215 * Range of len: 14-2342 bytes. 216 * 217 * After the struct fields the MAC header is placed, plus any padding, 218 * and then the actial payload. 219 */ 220struct iwl_tx_cmd { 221 __le16 len; 222 __le16 next_frame_len; 223 __le32 tx_flags; 224 struct { 225 u8 try_cnt; 226 u8 btkill_cnt; 227 __le16 reserved; 228 } scratch; /* DRAM_SCRATCH_API_U_VER_1 */ 229 __le32 rate_n_flags; 230 u8 sta_id; 231 u8 sec_ctl; 232 u8 initial_rate_index; 233 u8 reserved2; 234 u8 key[16]; 235 __le32 reserved3; 236 __le32 life_time; 237 __le32 dram_lsb_ptr; 238 u8 dram_msb_ptr; 239 u8 rts_retry_limit; 240 u8 data_retry_limit; 241 u8 tid_tspec; 242 __le16 pm_frame_timeout; 243 __le16 reserved4; 244 u8 payload[0]; 245 struct ieee80211_hdr hdr[0]; 246} __packed; /* TX_CMD_API_S_VER_3 */ 247 248/* 249 * TX response related data 250 */ 251 252/* 253 * enum iwl_tx_status - status that is returned by the fw after attempts to Tx 254 * @TX_STATUS_SUCCESS: 255 * @TX_STATUS_DIRECT_DONE: 256 * @TX_STATUS_POSTPONE_DELAY: 257 * @TX_STATUS_POSTPONE_FEW_BYTES: 258 * @TX_STATUS_POSTPONE_BT_PRIO: 259 * @TX_STATUS_POSTPONE_QUIET_PERIOD: 260 * @TX_STATUS_POSTPONE_CALC_TTAK: 261 * @TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY: 262 * @TX_STATUS_FAIL_SHORT_LIMIT: 263 * @TX_STATUS_FAIL_LONG_LIMIT: 264 * @TX_STATUS_FAIL_UNDERRUN: 265 * @TX_STATUS_FAIL_DRAIN_FLOW: 266 * @TX_STATUS_FAIL_RFKILL_FLUSH: 267 * @TX_STATUS_FAIL_LIFE_EXPIRE: 268 * @TX_STATUS_FAIL_DEST_PS: 269 * @TX_STATUS_FAIL_HOST_ABORTED: 270 * @TX_STATUS_FAIL_BT_RETRY: 271 * @TX_STATUS_FAIL_STA_INVALID: 272 * @TX_TATUS_FAIL_FRAG_DROPPED: 273 * @TX_STATUS_FAIL_TID_DISABLE: 274 * @TX_STATUS_FAIL_FIFO_FLUSHED: 275 * @TX_STATUS_FAIL_SMALL_CF_POLL: 276 * @TX_STATUS_FAIL_FW_DROP: 277 * @TX_STATUS_FAIL_STA_COLOR_MISMATCH: mismatch between color of Tx cmd and 278 * STA table 279 * @TX_FRAME_STATUS_INTERNAL_ABORT: 280 * @TX_MODE_MSK: 281 * @TX_MODE_NO_BURST: 282 * @TX_MODE_IN_BURST_SEQ: 283 * @TX_MODE_FIRST_IN_BURST: 284 * @TX_QUEUE_NUM_MSK: 285 * 286 * Valid only if frame_count =1 287 * TODO: complete documentation 288 */ 289enum iwl_tx_status { 290 TX_STATUS_MSK = 0x000000ff, 291 TX_STATUS_SUCCESS = 0x01, 292 TX_STATUS_DIRECT_DONE = 0x02, 293 /* postpone TX */ 294 TX_STATUS_POSTPONE_DELAY = 0x40, 295 TX_STATUS_POSTPONE_FEW_BYTES = 0x41, 296 TX_STATUS_POSTPONE_BT_PRIO = 0x42, 297 TX_STATUS_POSTPONE_QUIET_PERIOD = 0x43, 298 TX_STATUS_POSTPONE_CALC_TTAK = 0x44, 299 /* abort TX */ 300 TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY = 0x81, 301 TX_STATUS_FAIL_SHORT_LIMIT = 0x82, 302 TX_STATUS_FAIL_LONG_LIMIT = 0x83, 303 TX_STATUS_FAIL_UNDERRUN = 0x84, 304 TX_STATUS_FAIL_DRAIN_FLOW = 0x85, 305 TX_STATUS_FAIL_RFKILL_FLUSH = 0x86, 306 TX_STATUS_FAIL_LIFE_EXPIRE = 0x87, 307 TX_STATUS_FAIL_DEST_PS = 0x88, 308 TX_STATUS_FAIL_HOST_ABORTED = 0x89, 309 TX_STATUS_FAIL_BT_RETRY = 0x8a, 310 TX_STATUS_FAIL_STA_INVALID = 0x8b, 311 TX_STATUS_FAIL_FRAG_DROPPED = 0x8c, 312 TX_STATUS_FAIL_TID_DISABLE = 0x8d, 313 TX_STATUS_FAIL_FIFO_FLUSHED = 0x8e, 314 TX_STATUS_FAIL_SMALL_CF_POLL = 0x8f, 315 TX_STATUS_FAIL_FW_DROP = 0x90, 316 TX_STATUS_FAIL_STA_COLOR_MISMATCH = 0x91, 317 TX_STATUS_INTERNAL_ABORT = 0x92, 318 TX_MODE_MSK = 0x00000f00, 319 TX_MODE_NO_BURST = 0x00000000, 320 TX_MODE_IN_BURST_SEQ = 0x00000100, 321 TX_MODE_FIRST_IN_BURST = 0x00000200, 322 TX_QUEUE_NUM_MSK = 0x0001f000, 323 TX_NARROW_BW_MSK = 0x00060000, 324 TX_NARROW_BW_1DIV2 = 0x00020000, 325 TX_NARROW_BW_1DIV4 = 0x00040000, 326 TX_NARROW_BW_1DIV8 = 0x00060000, 327}; 328 329/* 330 * enum iwl_tx_agg_status - TX aggregation status 331 * @AGG_TX_STATE_STATUS_MSK: 332 * @AGG_TX_STATE_TRANSMITTED: 333 * @AGG_TX_STATE_UNDERRUN: 334 * @AGG_TX_STATE_BT_PRIO: 335 * @AGG_TX_STATE_FEW_BYTES: 336 * @AGG_TX_STATE_ABORT: 337 * @AGG_TX_STATE_LAST_SENT_TTL: 338 * @AGG_TX_STATE_LAST_SENT_TRY_CNT: 339 * @AGG_TX_STATE_LAST_SENT_BT_KILL: 340 * @AGG_TX_STATE_SCD_QUERY: 341 * @AGG_TX_STATE_TEST_BAD_CRC32: 342 * @AGG_TX_STATE_RESPONSE: 343 * @AGG_TX_STATE_DUMP_TX: 344 * @AGG_TX_STATE_DELAY_TX: 345 * @AGG_TX_STATE_TRY_CNT_MSK: Retry count for 1st frame in aggregation (retries 346 * occur if tx failed for this frame when it was a member of a previous 347 * aggregation block). If rate scaling is used, retry count indicates the 348 * rate table entry used for all frames in the new agg. 349 *@ AGG_TX_STATE_SEQ_NUM_MSK: Command ID and sequence number of Tx command for 350 * this frame 351 * 352 * TODO: complete documentation 353 */ 354enum iwl_tx_agg_status { 355 AGG_TX_STATE_STATUS_MSK = 0x00fff, 356 AGG_TX_STATE_TRANSMITTED = 0x000, 357 AGG_TX_STATE_UNDERRUN = 0x001, 358 AGG_TX_STATE_BT_PRIO = 0x002, 359 AGG_TX_STATE_FEW_BYTES = 0x004, 360 AGG_TX_STATE_ABORT = 0x008, 361 AGG_TX_STATE_LAST_SENT_TTL = 0x010, 362 AGG_TX_STATE_LAST_SENT_TRY_CNT = 0x020, 363 AGG_TX_STATE_LAST_SENT_BT_KILL = 0x040, 364 AGG_TX_STATE_SCD_QUERY = 0x080, 365 AGG_TX_STATE_TEST_BAD_CRC32 = 0x0100, 366 AGG_TX_STATE_RESPONSE = 0x1ff, 367 AGG_TX_STATE_DUMP_TX = 0x200, 368 AGG_TX_STATE_DELAY_TX = 0x400, 369 AGG_TX_STATE_TRY_CNT_POS = 12, 370 AGG_TX_STATE_TRY_CNT_MSK = 0xf << AGG_TX_STATE_TRY_CNT_POS, 371}; 372 373#define AGG_TX_STATE_LAST_SENT_MSK (AGG_TX_STATE_LAST_SENT_TTL| \ 374 AGG_TX_STATE_LAST_SENT_TRY_CNT| \ 375 AGG_TX_STATE_LAST_SENT_BT_KILL) 376 377/* 378 * The mask below describes a status where we are absolutely sure that the MPDU 379 * wasn't sent. For BA/Underrun we cannot be that sure. All we know that we've 380 * written the bytes to the TXE, but we know nothing about what the DSP did. 381 */ 382#define AGG_TX_STAT_FRAME_NOT_SENT (AGG_TX_STATE_FEW_BYTES | \ 383 AGG_TX_STATE_ABORT | \ 384 AGG_TX_STATE_SCD_QUERY) 385 386/* 387 * REPLY_TX = 0x1c (response) 388 * 389 * This response may be in one of two slightly different formats, indicated 390 * by the frame_count field: 391 * 392 * 1) No aggregation (frame_count == 1). This reports Tx results for a single 393 * frame. Multiple attempts, at various bit rates, may have been made for 394 * this frame. 395 * 396 * 2) Aggregation (frame_count > 1). This reports Tx results for two or more 397 * frames that used block-acknowledge. All frames were transmitted at 398 * same rate. Rate scaling may have been used if first frame in this new 399 * agg block failed in previous agg block(s). 400 * 401 * Note that, for aggregation, ACK (block-ack) status is not delivered 402 * here; block-ack has not been received by the time the device records 403 * this status. 404 * This status relates to reasons the tx might have been blocked or aborted 405 * within the device, rather than whether it was received successfully by 406 * the destination station. 407 */ 408 409/** 410 * struct agg_tx_status - per packet TX aggregation status 411 * @status: enum iwl_tx_agg_status 412 * @sequence: Sequence # for this frame's Tx cmd (not SSN!) 413 */ 414struct agg_tx_status { 415 __le16 status; 416 __le16 sequence; 417} __packed; 418 419/* 420 * definitions for initial rate index field 421 * bits [3:0] initial rate index 422 * bits [6:4] rate table color, used for the initial rate 423 * bit-7 invalid rate indication 424 */ 425#define TX_RES_INIT_RATE_INDEX_MSK 0x0f 426#define TX_RES_RATE_TABLE_COLOR_MSK 0x70 427#define TX_RES_INV_RATE_INDEX_MSK 0x80 428 429#define IWL_MVM_TX_RES_GET_TID(_ra_tid) ((_ra_tid) & 0x0f) 430#define IWL_MVM_TX_RES_GET_RA(_ra_tid) ((_ra_tid) >> 4) 431 432/** 433 * struct iwl_mvm_tx_resp - notifies that fw is TXing a packet 434 * ( REPLY_TX = 0x1c ) 435 * @frame_count: 1 no aggregation, >1 aggregation 436 * @bt_kill_count: num of times blocked by bluetooth (unused for agg) 437 * @failure_rts: num of failures due to unsuccessful RTS 438 * @failure_frame: num failures due to no ACK (unused for agg) 439 * @initial_rate: for non-agg: rate of the successful Tx. For agg: rate of the 440 * Tx of all the batch. RATE_MCS_* 441 * @wireless_media_time: for non-agg: RTS + CTS + frame tx attempts time + ACK. 442 * for agg: RTS + CTS + aggregation tx time + block-ack time. 443 * in usec. 444 * @pa_status: tx power info 445 * @pa_integ_res_a: tx power info 446 * @pa_integ_res_b: tx power info 447 * @pa_integ_res_c: tx power info 448 * @measurement_req_id: tx power info 449 * @tfd_info: TFD information set by the FH 450 * @seq_ctl: sequence control from the Tx cmd 451 * @byte_cnt: byte count from the Tx cmd 452 * @tlc_info: TLC rate info 453 * @ra_tid: bits [3:0] = ra, bits [7:4] = tid 454 * @frame_ctrl: frame control 455 * @status: for non-agg: frame status TX_STATUS_* 456 * for agg: status of 1st frame, AGG_TX_STATE_*; other frame status fields 457 * follow this one, up to frame_count. 458 * 459 * After the array of statuses comes the SSN of the SCD. Look at 460 * %iwl_mvm_get_scd_ssn for more details. 461 */ 462struct iwl_mvm_tx_resp { 463 u8 frame_count; 464 u8 bt_kill_count; 465 u8 failure_rts; 466 u8 failure_frame; 467 __le32 initial_rate; 468 __le16 wireless_media_time; 469 470 u8 pa_status; 471 u8 pa_integ_res_a[3]; 472 u8 pa_integ_res_b[3]; 473 u8 pa_integ_res_c[3]; 474 __le16 measurement_req_id; 475 u8 reduced_tpc; 476 u8 reserved; 477 478 __le32 tfd_info; 479 __le16 seq_ctl; 480 __le16 byte_cnt; 481 u8 tlc_info; 482 u8 ra_tid; 483 __le16 frame_ctrl; 484 485 struct agg_tx_status status; 486} __packed; /* TX_RSP_API_S_VER_3 */ 487 488/** 489 * struct iwl_mvm_ba_notif - notifies about reception of BA 490 * ( BA_NOTIF = 0xc5 ) 491 * @sta_addr_lo32: lower 32 bits of the MAC address 492 * @sta_addr_hi16: upper 16 bits of the MAC address 493 * @sta_id: Index of recipient (BA-sending) station in fw's station table 494 * @tid: tid of the session 495 * @seq_ctl: 496 * @bitmap: the bitmap of the BA notification as seen in the air 497 * @scd_flow: the tx queue this BA relates to 498 * @scd_ssn: the index of the last contiguously sent packet 499 * @txed: number of Txed frames in this batch 500 * @txed_2_done: number of Acked frames in this batch 501 */ 502struct iwl_mvm_ba_notif { 503 __le32 sta_addr_lo32; 504 __le16 sta_addr_hi16; 505 __le16 reserved; 506 507 u8 sta_id; 508 u8 tid; 509 __le16 seq_ctl; 510 __le64 bitmap; 511 __le16 scd_flow; 512 __le16 scd_ssn; 513 u8 txed; 514 u8 txed_2_done; 515 __le16 reserved1; 516} __packed; 517 518/* 519 * struct iwl_mac_beacon_cmd - beacon template command 520 * @tx: the tx commands associated with the beacon frame 521 * @template_id: currently equal to the mac context id of the coresponding 522 * mac. 523 * @tim_idx: the offset of the tim IE in the beacon 524 * @tim_size: the length of the tim IE 525 * @frame: the template of the beacon frame 526 */ 527struct iwl_mac_beacon_cmd { 528 struct iwl_tx_cmd tx; 529 __le32 template_id; 530 __le32 tim_idx; 531 __le32 tim_size; 532 struct ieee80211_hdr frame[0]; 533} __packed; 534 535struct iwl_beacon_notif { 536 struct iwl_mvm_tx_resp beacon_notify_hdr; 537 __le64 tsf; 538 __le32 ibss_mgr_status; 539} __packed; 540 541/** 542 * struct iwl_extended_beacon_notif - notifies about beacon transmission 543 * @beacon_notify_hdr: tx response command associated with the beacon 544 * @tsf: last beacon tsf 545 * @ibss_mgr_status: whether IBSS is manager 546 * @gp2: last beacon time in gp2 547 */ 548struct iwl_extended_beacon_notif { 549 struct iwl_mvm_tx_resp beacon_notify_hdr; 550 __le64 tsf; 551 __le32 ibss_mgr_status; 552 __le32 gp2; 553} __packed; /* BEACON_NTFY_API_S_VER_5 */ 554 555/** 556 * enum iwl_dump_control - dump (flush) control flags 557 * @DUMP_TX_FIFO_FLUSH: Dump MSDUs until the the FIFO is empty 558 * and the TFD queues are empty. 559 */ 560enum iwl_dump_control { 561 DUMP_TX_FIFO_FLUSH = BIT(1), 562}; 563 564/** 565 * struct iwl_tx_path_flush_cmd -- queue/FIFO flush command 566 * @queues_ctl: bitmap of queues to flush 567 * @flush_ctl: control flags 568 * @reserved: reserved 569 */ 570struct iwl_tx_path_flush_cmd { 571 __le32 queues_ctl; 572 __le16 flush_ctl; 573 __le16 reserved; 574} __packed; /* TX_PATH_FLUSH_CMD_API_S_VER_1 */ 575 576/** 577 * iwl_mvm_get_scd_ssn - returns the SSN of the SCD 578 * @tx_resp: the Tx response from the fw (agg or non-agg) 579 * 580 * When the fw sends an AMPDU, it fetches the MPDUs one after the other. Since 581 * it can't know that everything will go well until the end of the AMPDU, it 582 * can't know in advance the number of MPDUs that will be sent in the current 583 * batch. This is why it writes the agg Tx response while it fetches the MPDUs. 584 * Hence, it can't know in advance what the SSN of the SCD will be at the end 585 * of the batch. This is why the SSN of the SCD is written at the end of the 586 * whole struct at a variable offset. This function knows how to cope with the 587 * variable offset and returns the SSN of the SCD. 588 */ 589static inline u32 iwl_mvm_get_scd_ssn(struct iwl_mvm_tx_resp *tx_resp) 590{ 591 return le32_to_cpup((__le32 *)&tx_resp->status + 592 tx_resp->frame_count) & 0xfff; 593} 594 595#endif /* __fw_api_tx_h__ */ 596