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) 2005 - 2011 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 LICENSE.GPL. 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) 2005 - 2011 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 64 #ifndef __il_commands_h__ 65 #define __il_commands_h__ 66 67 #include <linux/ieee80211.h> 68 69 struct il_priv; 70 71 /* uCode version contains 4 values: Major/Minor/API/Serial */ 72 #define IL_UCODE_MAJOR(ver) (((ver) & 0xFF000000) >> 24) 73 #define IL_UCODE_MINOR(ver) (((ver) & 0x00FF0000) >> 16) 74 #define IL_UCODE_API(ver) (((ver) & 0x0000FF00) >> 8) 75 #define IL_UCODE_SERIAL(ver) ((ver) & 0x000000FF) 76 77 /* Tx rates */ 78 #define IL_CCK_RATES 4 79 #define IL_OFDM_RATES 8 80 #define IL_MAX_RATES (IL_CCK_RATES + IL_OFDM_RATES) 81 82 enum { 83 N_ALIVE = 0x1, 84 N_ERROR = 0x2, 85 86 /* RXON and QOS commands */ 87 C_RXON = 0x10, 88 C_RXON_ASSOC = 0x11, 89 C_QOS_PARAM = 0x13, 90 C_RXON_TIMING = 0x14, 91 92 /* Multi-Station support */ 93 C_ADD_STA = 0x18, 94 C_REM_STA = 0x19, 95 96 /* Security */ 97 C_WEPKEY = 0x20, 98 99 /* RX, TX, LEDs */ 100 N_3945_RX = 0x1b, /* 3945 only */ 101 C_TX = 0x1c, 102 C_RATE_SCALE = 0x47, /* 3945 only */ 103 C_LEDS = 0x48, 104 C_TX_LINK_QUALITY_CMD = 0x4e, /* for 4965 */ 105 106 /* 802.11h related */ 107 C_CHANNEL_SWITCH = 0x72, 108 N_CHANNEL_SWITCH = 0x73, 109 C_SPECTRUM_MEASUREMENT = 0x74, 110 N_SPECTRUM_MEASUREMENT = 0x75, 111 112 /* Power Management */ 113 C_POWER_TBL = 0x77, 114 N_PM_SLEEP = 0x7A, 115 N_PM_DEBUG_STATS = 0x7B, 116 117 /* Scan commands and notifications */ 118 C_SCAN = 0x80, 119 C_SCAN_ABORT = 0x81, 120 N_SCAN_START = 0x82, 121 N_SCAN_RESULTS = 0x83, 122 N_SCAN_COMPLETE = 0x84, 123 124 /* IBSS/AP commands */ 125 N_BEACON = 0x90, 126 C_TX_BEACON = 0x91, 127 128 /* Miscellaneous commands */ 129 C_TX_PWR_TBL = 0x97, 130 131 /* Bluetooth device coexistence config command */ 132 C_BT_CONFIG = 0x9b, 133 134 /* Statistics */ 135 C_STATS = 0x9c, 136 N_STATS = 0x9d, 137 138 /* RF-KILL commands and notifications */ 139 N_CARD_STATE = 0xa1, 140 141 /* Missed beacons notification */ 142 N_MISSED_BEACONS = 0xa2, 143 144 C_CT_KILL_CONFIG = 0xa4, 145 C_SENSITIVITY = 0xa8, 146 C_PHY_CALIBRATION = 0xb0, 147 N_RX_PHY = 0xc0, 148 N_RX_MPDU = 0xc1, 149 N_RX = 0xc3, 150 N_COMPRESSED_BA = 0xc5, 151 152 IL_CN_MAX = 0xff 153 }; 154 155 /****************************************************************************** 156 * (0) 157 * Commonly used structures and definitions: 158 * Command header, rate_n_flags, txpower 159 * 160 *****************************************************************************/ 161 162 /* il_cmd_header flags value */ 163 #define IL_CMD_FAILED_MSK 0x40 164 165 #define SEQ_TO_QUEUE(s) (((s) >> 8) & 0x1f) 166 #define QUEUE_TO_SEQ(q) (((q) & 0x1f) << 8) 167 #define SEQ_TO_IDX(s) ((s) & 0xff) 168 #define IDX_TO_SEQ(i) ((i) & 0xff) 169 #define SEQ_HUGE_FRAME cpu_to_le16(0x4000) 170 #define SEQ_RX_FRAME cpu_to_le16(0x8000) 171 172 /** 173 * struct il_cmd_header 174 * 175 * This header format appears in the beginning of each command sent from the 176 * driver, and each response/notification received from uCode. 177 */ 178 struct il_cmd_header { 179 u8 cmd; /* Command ID: C_RXON, etc. */ 180 u8 flags; /* 0:5 reserved, 6 abort, 7 internal */ 181 /* 182 * The driver sets up the sequence number to values of its choosing. 183 * uCode does not use this value, but passes it back to the driver 184 * when sending the response to each driver-originated command, so 185 * the driver can match the response to the command. Since the values 186 * don't get used by uCode, the driver may set up an arbitrary format. 187 * 188 * There is one exception: uCode sets bit 15 when it originates 189 * the response/notification, i.e. when the response/notification 190 * is not a direct response to a command sent by the driver. For 191 * example, uCode issues N_3945_RX when it sends a received frame 192 * to the driver; it is not a direct response to any driver command. 193 * 194 * The Linux driver uses the following format: 195 * 196 * 0:7 tfd idx - position within TX queue 197 * 8:12 TX queue id 198 * 13 reserved 199 * 14 huge - driver sets this to indicate command is in the 200 * 'huge' storage at the end of the command buffers 201 * 15 unsolicited RX or uCode-originated notification 202 */ 203 __le16 sequence; 204 205 /* command or response/notification data follows immediately */ 206 u8 data[]; 207 } __packed; 208 209 /** 210 * struct il3945_tx_power 211 * 212 * Used in C_TX_PWR_TBL, C_SCAN, C_CHANNEL_SWITCH 213 * 214 * Each entry contains two values: 215 * 1) DSP gain (or sometimes called DSP attenuation). This is a fine-grained 216 * linear value that multiplies the output of the digital signal processor, 217 * before being sent to the analog radio. 218 * 2) Radio gain. This sets the analog gain of the radio Tx path. 219 * It is a coarser setting, and behaves in a logarithmic (dB) fashion. 220 * 221 * Driver obtains values from struct il3945_tx_power power_gain_table[][]. 222 */ 223 struct il3945_tx_power { 224 u8 tx_gain; /* gain for analog radio */ 225 u8 dsp_atten; /* gain for DSP */ 226 } __packed; 227 228 /** 229 * struct il3945_power_per_rate 230 * 231 * Used in C_TX_PWR_TBL, C_CHANNEL_SWITCH 232 */ 233 struct il3945_power_per_rate { 234 u8 rate; /* plcp */ 235 struct il3945_tx_power tpc; 236 u8 reserved; 237 } __packed; 238 239 /** 240 * iwl4965 rate_n_flags bit fields 241 * 242 * rate_n_flags format is used in following iwl4965 commands: 243 * N_RX (response only) 244 * N_RX_MPDU (response only) 245 * C_TX (both command and response) 246 * C_TX_LINK_QUALITY_CMD 247 * 248 * High-throughput (HT) rate format for bits 7:0 (bit 8 must be "1"): 249 * 2-0: 0) 6 Mbps 250 * 1) 12 Mbps 251 * 2) 18 Mbps 252 * 3) 24 Mbps 253 * 4) 36 Mbps 254 * 5) 48 Mbps 255 * 6) 54 Mbps 256 * 7) 60 Mbps 257 * 258 * 4-3: 0) Single stream (SISO) 259 * 1) Dual stream (MIMO) 260 * 2) Triple stream (MIMO) 261 * 262 * 5: Value of 0x20 in bits 7:0 indicates 6 Mbps HT40 duplicate data 263 * 264 * Legacy OFDM rate format for bits 7:0 (bit 8 must be "0", bit 9 "0"): 265 * 3-0: 0xD) 6 Mbps 266 * 0xF) 9 Mbps 267 * 0x5) 12 Mbps 268 * 0x7) 18 Mbps 269 * 0x9) 24 Mbps 270 * 0xB) 36 Mbps 271 * 0x1) 48 Mbps 272 * 0x3) 54 Mbps 273 * 274 * Legacy CCK rate format for bits 7:0 (bit 8 must be "0", bit 9 "1"): 275 * 6-0: 10) 1 Mbps 276 * 20) 2 Mbps 277 * 55) 5.5 Mbps 278 * 110) 11 Mbps 279 */ 280 #define RATE_MCS_CODE_MSK 0x7 281 #define RATE_MCS_SPATIAL_POS 3 282 #define RATE_MCS_SPATIAL_MSK 0x18 283 #define RATE_MCS_HT_DUP_POS 5 284 #define RATE_MCS_HT_DUP_MSK 0x20 285 286 /* Bit 8: (1) HT format, (0) legacy format in bits 7:0 */ 287 #define RATE_MCS_FLAGS_POS 8 288 #define RATE_MCS_HT_POS 8 289 #define RATE_MCS_HT_MSK 0x100 290 291 /* Bit 9: (1) CCK, (0) OFDM. HT (bit 8) must be "0" for this bit to be valid */ 292 #define RATE_MCS_CCK_POS 9 293 #define RATE_MCS_CCK_MSK 0x200 294 295 /* Bit 10: (1) Use Green Field preamble */ 296 #define RATE_MCS_GF_POS 10 297 #define RATE_MCS_GF_MSK 0x400 298 299 /* Bit 11: (1) Use 40Mhz HT40 chnl width, (0) use 20 MHz legacy chnl width */ 300 #define RATE_MCS_HT40_POS 11 301 #define RATE_MCS_HT40_MSK 0x800 302 303 /* Bit 12: (1) Duplicate data on both 20MHz chnls. HT40 (bit 11) must be set. */ 304 #define RATE_MCS_DUP_POS 12 305 #define RATE_MCS_DUP_MSK 0x1000 306 307 /* Bit 13: (1) Short guard interval (0.4 usec), (0) normal GI (0.8 usec) */ 308 #define RATE_MCS_SGI_POS 13 309 #define RATE_MCS_SGI_MSK 0x2000 310 311 /** 312 * rate_n_flags Tx antenna masks 313 * 4965 has 2 transmitters 314 * bit14:16 315 */ 316 #define RATE_MCS_ANT_POS 14 317 #define RATE_MCS_ANT_A_MSK 0x04000 318 #define RATE_MCS_ANT_B_MSK 0x08000 319 #define RATE_MCS_ANT_C_MSK 0x10000 320 #define RATE_MCS_ANT_AB_MSK (RATE_MCS_ANT_A_MSK | RATE_MCS_ANT_B_MSK) 321 #define RATE_MCS_ANT_ABC_MSK (RATE_MCS_ANT_AB_MSK | RATE_MCS_ANT_C_MSK) 322 #define RATE_ANT_NUM 3 323 324 #define POWER_TBL_NUM_ENTRIES 33 325 #define POWER_TBL_NUM_HT_OFDM_ENTRIES 32 326 #define POWER_TBL_CCK_ENTRY 32 327 328 #define IL_PWR_NUM_HT_OFDM_ENTRIES 24 329 #define IL_PWR_CCK_ENTRIES 2 330 331 /** 332 * union il4965_tx_power_dual_stream 333 * 334 * Host format used for C_TX_PWR_TBL, C_CHANNEL_SWITCH 335 * Use __le32 version (struct tx_power_dual_stream) when building command. 336 * 337 * Driver provides radio gain and DSP attenuation settings to device in pairs, 338 * one value for each transmitter chain. The first value is for transmitter A, 339 * second for transmitter B. 340 * 341 * For SISO bit rates, both values in a pair should be identical. 342 * For MIMO rates, one value may be different from the other, 343 * in order to balance the Tx output between the two transmitters. 344 * 345 * See more details in doc for TXPOWER in 4965.h. 346 */ 347 union il4965_tx_power_dual_stream { 348 struct { 349 u8 radio_tx_gain[2]; 350 u8 dsp_predis_atten[2]; 351 } s; 352 u32 dw; 353 }; 354 355 /** 356 * struct tx_power_dual_stream 357 * 358 * Table entries in C_TX_PWR_TBL, C_CHANNEL_SWITCH 359 * 360 * Same format as il_tx_power_dual_stream, but __le32 361 */ 362 struct tx_power_dual_stream { 363 __le32 dw; 364 } __packed; 365 366 /** 367 * struct il4965_tx_power_db 368 * 369 * Entire table within C_TX_PWR_TBL, C_CHANNEL_SWITCH 370 */ 371 struct il4965_tx_power_db { 372 struct tx_power_dual_stream power_tbl[POWER_TBL_NUM_ENTRIES]; 373 } __packed; 374 375 /****************************************************************************** 376 * (0a) 377 * Alive and Error Commands & Responses: 378 * 379 *****************************************************************************/ 380 381 #define UCODE_VALID_OK cpu_to_le32(0x1) 382 #define INITIALIZE_SUBTYPE (9) 383 384 /* 385 * ("Initialize") N_ALIVE = 0x1 (response only, not a command) 386 * 387 * uCode issues this "initialize alive" notification once the initialization 388 * uCode image has completed its work, and is ready to load the runtime image. 389 * This is the *first* "alive" notification that the driver will receive after 390 * rebooting uCode; the "initialize" alive is indicated by subtype field == 9. 391 * 392 * See comments documenting "BSM" (bootstrap state machine). 393 * 394 * For 4965, this notification contains important calibration data for 395 * calculating txpower settings: 396 * 397 * 1) Power supply voltage indication. The voltage sensor outputs higher 398 * values for lower voltage, and vice verse. 399 * 400 * 2) Temperature measurement parameters, for each of two channel widths 401 * (20 MHz and 40 MHz) supported by the radios. Temperature sensing 402 * is done via one of the receiver chains, and channel width influences 403 * the results. 404 * 405 * 3) Tx gain compensation to balance 4965's 2 Tx chains for MIMO operation, 406 * for each of 5 frequency ranges. 407 */ 408 struct il_init_alive_resp { 409 u8 ucode_minor; 410 u8 ucode_major; 411 __le16 reserved1; 412 u8 sw_rev[8]; 413 u8 ver_type; 414 u8 ver_subtype; /* "9" for initialize alive */ 415 __le16 reserved2; 416 __le32 log_event_table_ptr; 417 __le32 error_event_table_ptr; 418 __le32 timestamp; 419 __le32 is_valid; 420 421 /* calibration values from "initialize" uCode */ 422 __le32 voltage; /* signed, higher value is lower voltage */ 423 __le32 therm_r1[2]; /* signed, 1st for normal, 2nd for HT40 */ 424 __le32 therm_r2[2]; /* signed */ 425 __le32 therm_r3[2]; /* signed */ 426 __le32 therm_r4[2]; /* signed */ 427 __le32 tx_atten[5][2]; /* signed MIMO gain comp, 5 freq groups, 428 * 2 Tx chains */ 429 } __packed; 430 431 /** 432 * N_ALIVE = 0x1 (response only, not a command) 433 * 434 * uCode issues this "alive" notification once the runtime image is ready 435 * to receive commands from the driver. This is the *second* "alive" 436 * notification that the driver will receive after rebooting uCode; 437 * this "alive" is indicated by subtype field != 9. 438 * 439 * See comments documenting "BSM" (bootstrap state machine). 440 * 441 * This response includes two pointers to structures within the device's 442 * data SRAM (access via HBUS_TARG_MEM_* regs) that are useful for debugging: 443 * 444 * 1) log_event_table_ptr indicates base of the event log. This traces 445 * a 256-entry history of uCode execution within a circular buffer. 446 * Its header format is: 447 * 448 * __le32 log_size; log capacity (in number of entries) 449 * __le32 type; (1) timestamp with each entry, (0) no timestamp 450 * __le32 wraps; # times uCode has wrapped to top of circular buffer 451 * __le32 write_idx; next circular buffer entry that uCode would fill 452 * 453 * The header is followed by the circular buffer of log entries. Entries 454 * with timestamps have the following format: 455 * 456 * __le32 event_id; range 0 - 1500 457 * __le32 timestamp; low 32 bits of TSF (of network, if associated) 458 * __le32 data; event_id-specific data value 459 * 460 * Entries without timestamps contain only event_id and data. 461 * 462 * 463 * 2) error_event_table_ptr indicates base of the error log. This contains 464 * information about any uCode error that occurs. For 4965, the format 465 * of the error log is: 466 * 467 * __le32 valid; (nonzero) valid, (0) log is empty 468 * __le32 error_id; type of error 469 * __le32 pc; program counter 470 * __le32 blink1; branch link 471 * __le32 blink2; branch link 472 * __le32 ilink1; interrupt link 473 * __le32 ilink2; interrupt link 474 * __le32 data1; error-specific data 475 * __le32 data2; error-specific data 476 * __le32 line; source code line of error 477 * __le32 bcon_time; beacon timer 478 * __le32 tsf_low; network timestamp function timer 479 * __le32 tsf_hi; network timestamp function timer 480 * __le32 gp1; GP1 timer register 481 * __le32 gp2; GP2 timer register 482 * __le32 gp3; GP3 timer register 483 * __le32 ucode_ver; uCode version 484 * __le32 hw_ver; HW Silicon version 485 * __le32 brd_ver; HW board version 486 * __le32 log_pc; log program counter 487 * __le32 frame_ptr; frame pointer 488 * __le32 stack_ptr; stack pointer 489 * __le32 hcmd; last host command 490 * __le32 isr0; isr status register LMPM_NIC_ISR0: rxtx_flag 491 * __le32 isr1; isr status register LMPM_NIC_ISR1: host_flag 492 * __le32 isr2; isr status register LMPM_NIC_ISR2: enc_flag 493 * __le32 isr3; isr status register LMPM_NIC_ISR3: time_flag 494 * __le32 isr4; isr status register LMPM_NIC_ISR4: wico interrupt 495 * __le32 isr_pref; isr status register LMPM_NIC_PREF_STAT 496 * __le32 wait_event; wait event() caller address 497 * __le32 l2p_control; L2pControlField 498 * __le32 l2p_duration; L2pDurationField 499 * __le32 l2p_mhvalid; L2pMhValidBits 500 * __le32 l2p_addr_match; L2pAddrMatchStat 501 * __le32 lmpm_pmg_sel; indicate which clocks are turned on (LMPM_PMG_SEL) 502 * __le32 u_timestamp; indicate when the date and time of the compilation 503 * __le32 reserved; 504 * 505 * The Linux driver can print both logs to the system log when a uCode error 506 * occurs. 507 */ 508 struct il_alive_resp { 509 u8 ucode_minor; 510 u8 ucode_major; 511 __le16 reserved1; 512 u8 sw_rev[8]; 513 u8 ver_type; 514 u8 ver_subtype; /* not "9" for runtime alive */ 515 __le16 reserved2; 516 __le32 log_event_table_ptr; /* SRAM address for event log */ 517 __le32 error_event_table_ptr; /* SRAM address for error log */ 518 __le32 timestamp; 519 __le32 is_valid; 520 } __packed; 521 522 /* 523 * N_ERROR = 0x2 (response only, not a command) 524 */ 525 struct il_error_resp { 526 __le32 error_type; 527 u8 cmd_id; 528 u8 reserved1; 529 __le16 bad_cmd_seq_num; 530 __le32 error_info; 531 __le64 timestamp; 532 } __packed; 533 534 /****************************************************************************** 535 * (1) 536 * RXON Commands & Responses: 537 * 538 *****************************************************************************/ 539 540 /* 541 * Rx config defines & structure 542 */ 543 /* rx_config device types */ 544 enum { 545 RXON_DEV_TYPE_AP = 1, 546 RXON_DEV_TYPE_ESS = 3, 547 RXON_DEV_TYPE_IBSS = 4, 548 RXON_DEV_TYPE_SNIFFER = 6, 549 }; 550 551 #define RXON_RX_CHAIN_DRIVER_FORCE_MSK cpu_to_le16(0x1 << 0) 552 #define RXON_RX_CHAIN_DRIVER_FORCE_POS (0) 553 #define RXON_RX_CHAIN_VALID_MSK cpu_to_le16(0x7 << 1) 554 #define RXON_RX_CHAIN_VALID_POS (1) 555 #define RXON_RX_CHAIN_FORCE_SEL_MSK cpu_to_le16(0x7 << 4) 556 #define RXON_RX_CHAIN_FORCE_SEL_POS (4) 557 #define RXON_RX_CHAIN_FORCE_MIMO_SEL_MSK cpu_to_le16(0x7 << 7) 558 #define RXON_RX_CHAIN_FORCE_MIMO_SEL_POS (7) 559 #define RXON_RX_CHAIN_CNT_MSK cpu_to_le16(0x3 << 10) 560 #define RXON_RX_CHAIN_CNT_POS (10) 561 #define RXON_RX_CHAIN_MIMO_CNT_MSK cpu_to_le16(0x3 << 12) 562 #define RXON_RX_CHAIN_MIMO_CNT_POS (12) 563 #define RXON_RX_CHAIN_MIMO_FORCE_MSK cpu_to_le16(0x1 << 14) 564 #define RXON_RX_CHAIN_MIMO_FORCE_POS (14) 565 566 /* rx_config flags */ 567 /* band & modulation selection */ 568 #define RXON_FLG_BAND_24G_MSK cpu_to_le32(1 << 0) 569 #define RXON_FLG_CCK_MSK cpu_to_le32(1 << 1) 570 /* auto detection enable */ 571 #define RXON_FLG_AUTO_DETECT_MSK cpu_to_le32(1 << 2) 572 /* TGg protection when tx */ 573 #define RXON_FLG_TGG_PROTECT_MSK cpu_to_le32(1 << 3) 574 /* cck short slot & preamble */ 575 #define RXON_FLG_SHORT_SLOT_MSK cpu_to_le32(1 << 4) 576 #define RXON_FLG_SHORT_PREAMBLE_MSK cpu_to_le32(1 << 5) 577 /* antenna selection */ 578 #define RXON_FLG_DIS_DIV_MSK cpu_to_le32(1 << 7) 579 #define RXON_FLG_ANT_SEL_MSK cpu_to_le32(0x0f00) 580 #define RXON_FLG_ANT_A_MSK cpu_to_le32(1 << 8) 581 #define RXON_FLG_ANT_B_MSK cpu_to_le32(1 << 9) 582 /* radar detection enable */ 583 #define RXON_FLG_RADAR_DETECT_MSK cpu_to_le32(1 << 12) 584 #define RXON_FLG_TGJ_NARROW_BAND_MSK cpu_to_le32(1 << 13) 585 /* rx response to host with 8-byte TSF 586 * (according to ON_AIR deassertion) */ 587 #define RXON_FLG_TSF2HOST_MSK cpu_to_le32(1 << 15) 588 589 /* HT flags */ 590 #define RXON_FLG_CTRL_CHANNEL_LOC_POS (22) 591 #define RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK cpu_to_le32(0x1 << 22) 592 593 #define RXON_FLG_HT_OPERATING_MODE_POS (23) 594 595 #define RXON_FLG_HT_PROT_MSK cpu_to_le32(0x1 << 23) 596 #define RXON_FLG_HT40_PROT_MSK cpu_to_le32(0x2 << 23) 597 598 #define RXON_FLG_CHANNEL_MODE_POS (25) 599 #define RXON_FLG_CHANNEL_MODE_MSK cpu_to_le32(0x3 << 25) 600 601 /* channel mode */ 602 enum { 603 CHANNEL_MODE_LEGACY = 0, 604 CHANNEL_MODE_PURE_40 = 1, 605 CHANNEL_MODE_MIXED = 2, 606 CHANNEL_MODE_RESERVED = 3, 607 }; 608 #define RXON_FLG_CHANNEL_MODE_LEGACY \ 609 cpu_to_le32(CHANNEL_MODE_LEGACY << RXON_FLG_CHANNEL_MODE_POS) 610 #define RXON_FLG_CHANNEL_MODE_PURE_40 \ 611 cpu_to_le32(CHANNEL_MODE_PURE_40 << RXON_FLG_CHANNEL_MODE_POS) 612 #define RXON_FLG_CHANNEL_MODE_MIXED \ 613 cpu_to_le32(CHANNEL_MODE_MIXED << RXON_FLG_CHANNEL_MODE_POS) 614 615 /* CTS to self (if spec allows) flag */ 616 #define RXON_FLG_SELF_CTS_EN cpu_to_le32(0x1<<30) 617 618 /* rx_config filter flags */ 619 /* accept all data frames */ 620 #define RXON_FILTER_PROMISC_MSK cpu_to_le32(1 << 0) 621 /* pass control & management to host */ 622 #define RXON_FILTER_CTL2HOST_MSK cpu_to_le32(1 << 1) 623 /* accept multi-cast */ 624 #define RXON_FILTER_ACCEPT_GRP_MSK cpu_to_le32(1 << 2) 625 /* don't decrypt uni-cast frames */ 626 #define RXON_FILTER_DIS_DECRYPT_MSK cpu_to_le32(1 << 3) 627 /* don't decrypt multi-cast frames */ 628 #define RXON_FILTER_DIS_GRP_DECRYPT_MSK cpu_to_le32(1 << 4) 629 /* STA is associated */ 630 #define RXON_FILTER_ASSOC_MSK cpu_to_le32(1 << 5) 631 /* transfer to host non bssid beacons in associated state */ 632 #define RXON_FILTER_BCON_AWARE_MSK cpu_to_le32(1 << 6) 633 634 /** 635 * C_RXON = 0x10 (command, has simple generic response) 636 * 637 * RXON tunes the radio tuner to a service channel, and sets up a number 638 * of parameters that are used primarily for Rx, but also for Tx operations. 639 * 640 * NOTE: When tuning to a new channel, driver must set the 641 * RXON_FILTER_ASSOC_MSK to 0. This will clear station-dependent 642 * info within the device, including the station tables, tx retry 643 * rate tables, and txpower tables. Driver must build a new station 644 * table and txpower table before transmitting anything on the RXON 645 * channel. 646 * 647 * NOTE: All RXONs wipe clean the internal txpower table. Driver must 648 * issue a new C_TX_PWR_TBL after each C_RXON (0x10), 649 * regardless of whether RXON_FILTER_ASSOC_MSK is set. 650 */ 651 652 struct il3945_rxon_cmd { 653 u8 node_addr[6]; 654 __le16 reserved1; 655 u8 bssid_addr[6]; 656 __le16 reserved2; 657 u8 wlap_bssid_addr[6]; 658 __le16 reserved3; 659 u8 dev_type; 660 u8 air_propagation; 661 __le16 reserved4; 662 u8 ofdm_basic_rates; 663 u8 cck_basic_rates; 664 __le16 assoc_id; 665 __le32 flags; 666 __le32 filter_flags; 667 __le16 channel; 668 __le16 reserved5; 669 } __packed; 670 671 struct il4965_rxon_cmd { 672 u8 node_addr[6]; 673 __le16 reserved1; 674 u8 bssid_addr[6]; 675 __le16 reserved2; 676 u8 wlap_bssid_addr[6]; 677 __le16 reserved3; 678 u8 dev_type; 679 u8 air_propagation; 680 __le16 rx_chain; 681 u8 ofdm_basic_rates; 682 u8 cck_basic_rates; 683 __le16 assoc_id; 684 __le32 flags; 685 __le32 filter_flags; 686 __le16 channel; 687 u8 ofdm_ht_single_stream_basic_rates; 688 u8 ofdm_ht_dual_stream_basic_rates; 689 } __packed; 690 691 /* Create a common rxon cmd which will be typecast into the 3945 or 4965 692 * specific rxon cmd, depending on where it is called from. 693 */ 694 struct il_rxon_cmd { 695 u8 node_addr[6]; 696 __le16 reserved1; 697 u8 bssid_addr[6]; 698 __le16 reserved2; 699 u8 wlap_bssid_addr[6]; 700 __le16 reserved3; 701 u8 dev_type; 702 u8 air_propagation; 703 __le16 rx_chain; 704 u8 ofdm_basic_rates; 705 u8 cck_basic_rates; 706 __le16 assoc_id; 707 __le32 flags; 708 __le32 filter_flags; 709 __le16 channel; 710 u8 ofdm_ht_single_stream_basic_rates; 711 u8 ofdm_ht_dual_stream_basic_rates; 712 u8 reserved4; 713 u8 reserved5; 714 } __packed; 715 716 /* 717 * C_RXON_ASSOC = 0x11 (command, has simple generic response) 718 */ 719 struct il3945_rxon_assoc_cmd { 720 __le32 flags; 721 __le32 filter_flags; 722 u8 ofdm_basic_rates; 723 u8 cck_basic_rates; 724 __le16 reserved; 725 } __packed; 726 727 struct il4965_rxon_assoc_cmd { 728 __le32 flags; 729 __le32 filter_flags; 730 u8 ofdm_basic_rates; 731 u8 cck_basic_rates; 732 u8 ofdm_ht_single_stream_basic_rates; 733 u8 ofdm_ht_dual_stream_basic_rates; 734 __le16 rx_chain_select_flags; 735 __le16 reserved; 736 } __packed; 737 738 #define IL_CONN_MAX_LISTEN_INTERVAL 10 739 #define IL_MAX_UCODE_BEACON_INTERVAL 4 /* 4096 */ 740 #define IL39_MAX_UCODE_BEACON_INTERVAL 1 /* 1024 */ 741 742 /* 743 * C_RXON_TIMING = 0x14 (command, has simple generic response) 744 */ 745 struct il_rxon_time_cmd { 746 __le64 timestamp; 747 __le16 beacon_interval; 748 __le16 atim_win; 749 __le32 beacon_init_val; 750 __le16 listen_interval; 751 u8 dtim_period; 752 u8 delta_cp_bss_tbtts; 753 } __packed; 754 755 /* 756 * C_CHANNEL_SWITCH = 0x72 (command, has simple generic response) 757 */ 758 struct il3945_channel_switch_cmd { 759 u8 band; 760 u8 expect_beacon; 761 __le16 channel; 762 __le32 rxon_flags; 763 __le32 rxon_filter_flags; 764 __le32 switch_time; 765 struct il3945_power_per_rate power[IL_MAX_RATES]; 766 } __packed; 767 768 struct il4965_channel_switch_cmd { 769 u8 band; 770 u8 expect_beacon; 771 __le16 channel; 772 __le32 rxon_flags; 773 __le32 rxon_filter_flags; 774 __le32 switch_time; 775 struct il4965_tx_power_db tx_power; 776 } __packed; 777 778 /* 779 * N_CHANNEL_SWITCH = 0x73 (notification only, not a command) 780 */ 781 struct il_csa_notification { 782 __le16 band; 783 __le16 channel; 784 __le32 status; /* 0 - OK, 1 - fail */ 785 } __packed; 786 787 /****************************************************************************** 788 * (2) 789 * Quality-of-Service (QOS) Commands & Responses: 790 * 791 *****************************************************************************/ 792 793 /** 794 * struct il_ac_qos -- QOS timing params for C_QOS_PARAM 795 * One for each of 4 EDCA access categories in struct il_qosparam_cmd 796 * 797 * @cw_min: Contention win, start value in numbers of slots. 798 * Should be a power-of-2, minus 1. Device's default is 0x0f. 799 * @cw_max: Contention win, max value in numbers of slots. 800 * Should be a power-of-2, minus 1. Device's default is 0x3f. 801 * @aifsn: Number of slots in Arbitration Interframe Space (before 802 * performing random backoff timing prior to Tx). Device default 1. 803 * @edca_txop: Length of Tx opportunity, in uSecs. Device default is 0. 804 * 805 * Device will automatically increase contention win by (2*CW) + 1 for each 806 * transmission retry. Device uses cw_max as a bit mask, ANDed with new CW 807 * value, to cap the CW value. 808 */ 809 struct il_ac_qos { 810 __le16 cw_min; 811 __le16 cw_max; 812 u8 aifsn; 813 u8 reserved1; 814 __le16 edca_txop; 815 } __packed; 816 817 /* QoS flags defines */ 818 #define QOS_PARAM_FLG_UPDATE_EDCA_MSK cpu_to_le32(0x01) 819 #define QOS_PARAM_FLG_TGN_MSK cpu_to_le32(0x02) 820 #define QOS_PARAM_FLG_TXOP_TYPE_MSK cpu_to_le32(0x10) 821 822 /* Number of Access Categories (AC) (EDCA), queues 0..3 */ 823 #define AC_NUM 4 824 825 /* 826 * C_QOS_PARAM = 0x13 (command, has simple generic response) 827 * 828 * This command sets up timings for each of the 4 prioritized EDCA Tx FIFOs 829 * 0: Background, 1: Best Effort, 2: Video, 3: Voice. 830 */ 831 struct il_qosparam_cmd { 832 __le32 qos_flags; 833 struct il_ac_qos ac[AC_NUM]; 834 } __packed; 835 836 /****************************************************************************** 837 * (3) 838 * Add/Modify Stations Commands & Responses: 839 * 840 *****************************************************************************/ 841 /* 842 * Multi station support 843 */ 844 845 /* Special, dedicated locations within device's station table */ 846 #define IL_AP_ID 0 847 #define IL_STA_ID 2 848 #define IL3945_BROADCAST_ID 24 849 #define IL3945_STATION_COUNT 25 850 #define IL4965_BROADCAST_ID 31 851 #define IL4965_STATION_COUNT 32 852 853 #define IL_STATION_COUNT 32 /* MAX(3945,4965) */ 854 #define IL_INVALID_STATION 255 855 856 #define STA_FLG_TX_RATE_MSK cpu_to_le32(1 << 2) 857 #define STA_FLG_PWR_SAVE_MSK cpu_to_le32(1 << 8) 858 #define STA_FLG_RTS_MIMO_PROT_MSK cpu_to_le32(1 << 17) 859 #define STA_FLG_AGG_MPDU_8US_MSK cpu_to_le32(1 << 18) 860 #define STA_FLG_MAX_AGG_SIZE_POS (19) 861 #define STA_FLG_MAX_AGG_SIZE_MSK cpu_to_le32(3 << 19) 862 #define STA_FLG_HT40_EN_MSK cpu_to_le32(1 << 21) 863 #define STA_FLG_MIMO_DIS_MSK cpu_to_le32(1 << 22) 864 #define STA_FLG_AGG_MPDU_DENSITY_POS (23) 865 #define STA_FLG_AGG_MPDU_DENSITY_MSK cpu_to_le32(7 << 23) 866 867 /* Use in mode field. 1: modify existing entry, 0: add new station entry */ 868 #define STA_CONTROL_MODIFY_MSK 0x01 869 870 /* key flags __le16*/ 871 #define STA_KEY_FLG_ENCRYPT_MSK cpu_to_le16(0x0007) 872 #define STA_KEY_FLG_NO_ENC cpu_to_le16(0x0000) 873 #define STA_KEY_FLG_WEP cpu_to_le16(0x0001) 874 #define STA_KEY_FLG_CCMP cpu_to_le16(0x0002) 875 #define STA_KEY_FLG_TKIP cpu_to_le16(0x0003) 876 877 #define STA_KEY_FLG_KEYID_POS 8 878 #define STA_KEY_FLG_INVALID cpu_to_le16(0x0800) 879 /* wep key is either from global key (0) or from station info array (1) */ 880 #define STA_KEY_FLG_MAP_KEY_MSK cpu_to_le16(0x0008) 881 882 /* wep key in STA: 5-bytes (0) or 13-bytes (1) */ 883 #define STA_KEY_FLG_KEY_SIZE_MSK cpu_to_le16(0x1000) 884 #define STA_KEY_MULTICAST_MSK cpu_to_le16(0x4000) 885 #define STA_KEY_MAX_NUM 8 886 887 /* Flags indicate whether to modify vs. don't change various station params */ 888 #define STA_MODIFY_KEY_MASK 0x01 889 #define STA_MODIFY_TID_DISABLE_TX 0x02 890 #define STA_MODIFY_TX_RATE_MSK 0x04 891 #define STA_MODIFY_ADDBA_TID_MSK 0x08 892 #define STA_MODIFY_DELBA_TID_MSK 0x10 893 #define STA_MODIFY_SLEEP_TX_COUNT_MSK 0x20 894 895 /* Receiver address (actually, Rx station's idx into station table), 896 * combined with Traffic ID (QOS priority), in format used by Tx Scheduler */ 897 #define BUILD_RAxTID(sta_id, tid) (((sta_id) << 4) + (tid)) 898 899 struct il4965_keyinfo { 900 __le16 key_flags; 901 u8 tkip_rx_tsc_byte2; /* TSC[2] for key mix ph1 detection */ 902 u8 reserved1; 903 __le16 tkip_rx_ttak[5]; /* 10-byte unicast TKIP TTAK */ 904 u8 key_offset; 905 u8 reserved2; 906 u8 key[16]; /* 16-byte unicast decryption key */ 907 } __packed; 908 909 /** 910 * struct sta_id_modify 911 * @addr[ETH_ALEN]: station's MAC address 912 * @sta_id: idx of station in uCode's station table 913 * @modify_mask: STA_MODIFY_*, 1: modify, 0: don't change 914 * 915 * Driver selects unused table idx when adding new station, 916 * or the idx to a pre-existing station entry when modifying that station. 917 * Some idxes have special purposes (IL_AP_ID, idx 0, is for AP). 918 * 919 * modify_mask flags select which parameters to modify vs. leave alone. 920 */ 921 struct sta_id_modify { 922 u8 addr[ETH_ALEN]; 923 __le16 reserved1; 924 u8 sta_id; 925 u8 modify_mask; 926 __le16 reserved2; 927 } __packed; 928 929 /* 930 * C_ADD_STA = 0x18 (command) 931 * 932 * The device contains an internal table of per-station information, 933 * with info on security keys, aggregation parameters, and Tx rates for 934 * initial Tx attempt and any retries (4965 devices uses 935 * C_TX_LINK_QUALITY_CMD, 936 * 3945 uses C_RATE_SCALE to set up rate tables). 937 * 938 * C_ADD_STA sets up the table entry for one station, either creating 939 * a new entry, or modifying a pre-existing one. 940 * 941 * NOTE: RXON command (without "associated" bit set) wipes the station table 942 * clean. Moving into RF_KILL state does this also. Driver must set up 943 * new station table before transmitting anything on the RXON channel 944 * (except active scans or active measurements; those commands carry 945 * their own txpower/rate setup data). 946 * 947 * When getting started on a new channel, driver must set up the 948 * IL_BROADCAST_ID entry (last entry in the table). For a client 949 * station in a BSS, once an AP is selected, driver sets up the AP STA 950 * in the IL_AP_ID entry (1st entry in the table). BROADCAST and AP 951 * are all that are needed for a BSS client station. If the device is 952 * used as AP, or in an IBSS network, driver must set up station table 953 * entries for all STAs in network, starting with idx IL_STA_ID. 954 */ 955 956 struct il3945_addsta_cmd { 957 u8 mode; /* 1: modify existing, 0: add new station */ 958 u8 reserved[3]; 959 struct sta_id_modify sta; 960 struct il4965_keyinfo key; 961 __le32 station_flags; /* STA_FLG_* */ 962 __le32 station_flags_msk; /* STA_FLG_* */ 963 964 /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID) 965 * corresponding to bit (e.g. bit 5 controls TID 5). 966 * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */ 967 __le16 tid_disable_tx; 968 969 __le16 rate_n_flags; 970 971 /* TID for which to add block-ack support. 972 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ 973 u8 add_immediate_ba_tid; 974 975 /* TID for which to remove block-ack support. 976 * Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */ 977 u8 remove_immediate_ba_tid; 978 979 /* Starting Sequence Number for added block-ack support. 980 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ 981 __le16 add_immediate_ba_ssn; 982 } __packed; 983 984 struct il4965_addsta_cmd { 985 u8 mode; /* 1: modify existing, 0: add new station */ 986 u8 reserved[3]; 987 struct sta_id_modify sta; 988 struct il4965_keyinfo key; 989 __le32 station_flags; /* STA_FLG_* */ 990 __le32 station_flags_msk; /* STA_FLG_* */ 991 992 /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID) 993 * corresponding to bit (e.g. bit 5 controls TID 5). 994 * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */ 995 __le16 tid_disable_tx; 996 997 __le16 reserved1; 998 999 /* TID for which to add block-ack support. 1000 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ 1001 u8 add_immediate_ba_tid; 1002 1003 /* TID for which to remove block-ack support. 1004 * Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */ 1005 u8 remove_immediate_ba_tid; 1006 1007 /* Starting Sequence Number for added block-ack support. 1008 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ 1009 __le16 add_immediate_ba_ssn; 1010 1011 /* 1012 * Number of packets OK to transmit to station even though 1013 * it is asleep -- used to synchronise PS-poll and u-APSD 1014 * responses while ucode keeps track of STA sleep state. 1015 */ 1016 __le16 sleep_tx_count; 1017 1018 __le16 reserved2; 1019 } __packed; 1020 1021 /* Wrapper struct for 3945 and 4965 addsta_cmd structures */ 1022 struct il_addsta_cmd { 1023 u8 mode; /* 1: modify existing, 0: add new station */ 1024 u8 reserved[3]; 1025 struct sta_id_modify sta; 1026 struct il4965_keyinfo key; 1027 __le32 station_flags; /* STA_FLG_* */ 1028 __le32 station_flags_msk; /* STA_FLG_* */ 1029 1030 /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID) 1031 * corresponding to bit (e.g. bit 5 controls TID 5). 1032 * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */ 1033 __le16 tid_disable_tx; 1034 1035 __le16 rate_n_flags; /* 3945 only */ 1036 1037 /* TID for which to add block-ack support. 1038 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ 1039 u8 add_immediate_ba_tid; 1040 1041 /* TID for which to remove block-ack support. 1042 * Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */ 1043 u8 remove_immediate_ba_tid; 1044 1045 /* Starting Sequence Number for added block-ack support. 1046 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ 1047 __le16 add_immediate_ba_ssn; 1048 1049 /* 1050 * Number of packets OK to transmit to station even though 1051 * it is asleep -- used to synchronise PS-poll and u-APSD 1052 * responses while ucode keeps track of STA sleep state. 1053 */ 1054 __le16 sleep_tx_count; 1055 1056 __le16 reserved2; 1057 } __packed; 1058 1059 #define ADD_STA_SUCCESS_MSK 0x1 1060 #define ADD_STA_NO_ROOM_IN_TBL 0x2 1061 #define ADD_STA_NO_BLOCK_ACK_RESOURCE 0x4 1062 #define ADD_STA_MODIFY_NON_EXIST_STA 0x8 1063 /* 1064 * C_ADD_STA = 0x18 (response) 1065 */ 1066 struct il_add_sta_resp { 1067 u8 status; /* ADD_STA_* */ 1068 } __packed; 1069 1070 #define REM_STA_SUCCESS_MSK 0x1 1071 /* 1072 * C_REM_STA = 0x19 (response) 1073 */ 1074 struct il_rem_sta_resp { 1075 u8 status; 1076 } __packed; 1077 1078 /* 1079 * C_REM_STA = 0x19 (command) 1080 */ 1081 struct il_rem_sta_cmd { 1082 u8 num_sta; /* number of removed stations */ 1083 u8 reserved[3]; 1084 u8 addr[ETH_ALEN]; /* MAC addr of the first station */ 1085 u8 reserved2[2]; 1086 } __packed; 1087 1088 #define IL_TX_FIFO_BK_MSK cpu_to_le32(BIT(0)) 1089 #define IL_TX_FIFO_BE_MSK cpu_to_le32(BIT(1)) 1090 #define IL_TX_FIFO_VI_MSK cpu_to_le32(BIT(2)) 1091 #define IL_TX_FIFO_VO_MSK cpu_to_le32(BIT(3)) 1092 #define IL_AGG_TX_QUEUE_MSK cpu_to_le32(0xffc00) 1093 1094 #define IL_DROP_SINGLE 0 1095 #define IL_DROP_SELECTED 1 1096 #define IL_DROP_ALL 2 1097 1098 /* 1099 * REPLY_WEP_KEY = 0x20 1100 */ 1101 struct il_wep_key { 1102 u8 key_idx; 1103 u8 key_offset; 1104 u8 reserved1[2]; 1105 u8 key_size; 1106 u8 reserved2[3]; 1107 u8 key[16]; 1108 } __packed; 1109 1110 struct il_wep_cmd { 1111 u8 num_keys; 1112 u8 global_key_type; 1113 u8 flags; 1114 u8 reserved; 1115 struct il_wep_key key[]; 1116 } __packed; 1117 1118 #define WEP_KEY_WEP_TYPE 1 1119 #define WEP_KEYS_MAX 4 1120 #define WEP_INVALID_OFFSET 0xff 1121 #define WEP_KEY_LEN_64 5 1122 #define WEP_KEY_LEN_128 13 1123 1124 /****************************************************************************** 1125 * (4) 1126 * Rx Responses: 1127 * 1128 *****************************************************************************/ 1129 1130 #define RX_RES_STATUS_NO_CRC32_ERROR cpu_to_le32(1 << 0) 1131 #define RX_RES_STATUS_NO_RXE_OVERFLOW cpu_to_le32(1 << 1) 1132 1133 #define RX_RES_PHY_FLAGS_BAND_24_MSK cpu_to_le16(1 << 0) 1134 #define RX_RES_PHY_FLAGS_MOD_CCK_MSK cpu_to_le16(1 << 1) 1135 #define RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK cpu_to_le16(1 << 2) 1136 #define RX_RES_PHY_FLAGS_NARROW_BAND_MSK cpu_to_le16(1 << 3) 1137 #define RX_RES_PHY_FLAGS_ANTENNA_MSK 0x70 1138 #define RX_RES_PHY_FLAGS_ANTENNA_POS 4 1139 #define RX_RES_PHY_FLAGS_AGG_MSK cpu_to_le16(1 << 7) 1140 1141 #define RX_RES_STATUS_SEC_TYPE_MSK (0x7 << 8) 1142 #define RX_RES_STATUS_SEC_TYPE_NONE (0x0 << 8) 1143 #define RX_RES_STATUS_SEC_TYPE_WEP (0x1 << 8) 1144 #define RX_RES_STATUS_SEC_TYPE_CCMP (0x2 << 8) 1145 #define RX_RES_STATUS_SEC_TYPE_TKIP (0x3 << 8) 1146 #define RX_RES_STATUS_SEC_TYPE_ERR (0x7 << 8) 1147 1148 #define RX_RES_STATUS_STATION_FOUND (1<<6) 1149 #define RX_RES_STATUS_NO_STATION_INFO_MISMATCH (1<<7) 1150 1151 #define RX_RES_STATUS_DECRYPT_TYPE_MSK (0x3 << 11) 1152 #define RX_RES_STATUS_NOT_DECRYPT (0x0 << 11) 1153 #define RX_RES_STATUS_DECRYPT_OK (0x3 << 11) 1154 #define RX_RES_STATUS_BAD_ICV_MIC (0x1 << 11) 1155 #define RX_RES_STATUS_BAD_KEY_TTAK (0x2 << 11) 1156 1157 #define RX_MPDU_RES_STATUS_ICV_OK (0x20) 1158 #define RX_MPDU_RES_STATUS_MIC_OK (0x40) 1159 #define RX_MPDU_RES_STATUS_TTAK_OK (1 << 7) 1160 #define RX_MPDU_RES_STATUS_DEC_DONE_MSK (0x800) 1161 1162 struct il3945_rx_frame_stats { 1163 u8 phy_count; 1164 u8 id; 1165 u8 rssi; 1166 u8 agc; 1167 __le16 sig_avg; 1168 __le16 noise_diff; 1169 u8 payload[]; 1170 } __packed; 1171 1172 struct il3945_rx_frame_hdr { 1173 __le16 channel; 1174 __le16 phy_flags; 1175 u8 reserved1; 1176 u8 rate; 1177 __le16 len; 1178 u8 payload[]; 1179 } __packed; 1180 1181 struct il3945_rx_frame_end { 1182 __le32 status; 1183 __le64 timestamp; 1184 __le32 beacon_timestamp; 1185 } __packed; 1186 1187 /* 1188 * N_3945_RX = 0x1b (response only, not a command) 1189 * 1190 * NOTE: DO NOT dereference from casts to this structure 1191 * It is provided only for calculating minimum data set size. 1192 * The actual offsets of the hdr and end are dynamic based on 1193 * stats.phy_count 1194 */ 1195 struct il3945_rx_frame { 1196 struct il3945_rx_frame_stats stats; 1197 struct il3945_rx_frame_hdr hdr; 1198 struct il3945_rx_frame_end end; 1199 } __packed; 1200 1201 #define IL39_RX_FRAME_SIZE (4 + sizeof(struct il3945_rx_frame)) 1202 1203 /* Fixed (non-configurable) rx data from phy */ 1204 1205 #define IL49_RX_RES_PHY_CNT 14 1206 #define IL49_RX_PHY_FLAGS_ANTENNAE_OFFSET (4) 1207 #define IL49_RX_PHY_FLAGS_ANTENNAE_MASK (0x70) 1208 #define IL49_AGC_DB_MASK (0x3f80) /* MASK(7,13) */ 1209 #define IL49_AGC_DB_POS (7) 1210 struct il4965_rx_non_cfg_phy { 1211 __le16 ant_selection; /* ant A bit 4, ant B bit 5, ant C bit 6 */ 1212 __le16 agc_info; /* agc code 0:6, agc dB 7:13, reserved 14:15 */ 1213 u8 rssi_info[6]; /* we use even entries, 0/2/4 for A/B/C rssi */ 1214 u8 pad[]; 1215 } __packed; 1216 1217 /* 1218 * N_RX = 0xc3 (response only, not a command) 1219 * Used only for legacy (non 11n) frames. 1220 */ 1221 struct il_rx_phy_res { 1222 u8 non_cfg_phy_cnt; /* non configurable DSP phy data byte count */ 1223 u8 cfg_phy_cnt; /* configurable DSP phy data byte count */ 1224 u8 stat_id; /* configurable DSP phy data set ID */ 1225 u8 reserved1; 1226 __le64 timestamp; /* TSF at on air rise */ 1227 __le32 beacon_time_stamp; /* beacon at on-air rise */ 1228 __le16 phy_flags; /* general phy flags: band, modulation, ... */ 1229 __le16 channel; /* channel number */ 1230 u8 non_cfg_phy_buf[32]; /* for various implementations of non_cfg_phy */ 1231 __le32 rate_n_flags; /* RATE_MCS_* */ 1232 __le16 byte_count; /* frame's byte-count */ 1233 __le16 frame_time; /* frame's time on the air */ 1234 } __packed; 1235 1236 struct il_rx_mpdu_res_start { 1237 __le16 byte_count; 1238 __le16 reserved; 1239 } __packed; 1240 1241 /****************************************************************************** 1242 * (5) 1243 * Tx Commands & Responses: 1244 * 1245 * Driver must place each C_TX command into one of the prioritized Tx 1246 * queues in host DRAM, shared between driver and device (see comments for 1247 * SCD registers and Tx/Rx Queues). When the device's Tx scheduler and uCode 1248 * are preparing to transmit, the device pulls the Tx command over the PCI 1249 * bus via one of the device's Tx DMA channels, to fill an internal FIFO 1250 * from which data will be transmitted. 1251 * 1252 * uCode handles all timing and protocol related to control frames 1253 * (RTS/CTS/ACK), based on flags in the Tx command. uCode and Tx scheduler 1254 * handle reception of block-acks; uCode updates the host driver via 1255 * N_COMPRESSED_BA. 1256 * 1257 * uCode handles retrying Tx when an ACK is expected but not received. 1258 * This includes trying lower data rates than the one requested in the Tx 1259 * command, as set up by the C_RATE_SCALE (for 3945) or 1260 * C_TX_LINK_QUALITY_CMD (4965). 1261 * 1262 * Driver sets up transmit power for various rates via C_TX_PWR_TBL. 1263 * This command must be executed after every RXON command, before Tx can occur. 1264 *****************************************************************************/ 1265 1266 /* C_TX Tx flags field */ 1267 1268 /* 1269 * 1: Use Request-To-Send protocol before this frame. 1270 * Mutually exclusive vs. TX_CMD_FLG_CTS_MSK. 1271 */ 1272 #define TX_CMD_FLG_RTS_MSK cpu_to_le32(1 << 1) 1273 1274 /* 1275 * 1: Transmit Clear-To-Send to self before this frame. 1276 * Driver should set this for AUTH/DEAUTH/ASSOC-REQ/REASSOC mgmnt frames. 1277 * Mutually exclusive vs. TX_CMD_FLG_RTS_MSK. 1278 */ 1279 #define TX_CMD_FLG_CTS_MSK cpu_to_le32(1 << 2) 1280 1281 /* 1: Expect ACK from receiving station 1282 * 0: Don't expect ACK (MAC header's duration field s/b 0) 1283 * Set this for unicast frames, but not broadcast/multicast. */ 1284 #define TX_CMD_FLG_ACK_MSK cpu_to_le32(1 << 3) 1285 1286 /* For 4965 devices: 1287 * 1: Use rate scale table (see C_TX_LINK_QUALITY_CMD). 1288 * Tx command's initial_rate_idx indicates first rate to try; 1289 * uCode walks through table for additional Tx attempts. 1290 * 0: Use Tx rate/MCS from Tx command's rate_n_flags field. 1291 * This rate will be used for all Tx attempts; it will not be scaled. */ 1292 #define TX_CMD_FLG_STA_RATE_MSK cpu_to_le32(1 << 4) 1293 1294 /* 1: Expect immediate block-ack. 1295 * Set when Txing a block-ack request frame. Also set TX_CMD_FLG_ACK_MSK. */ 1296 #define TX_CMD_FLG_IMM_BA_RSP_MASK cpu_to_le32(1 << 6) 1297 1298 /* 1299 * 1: Frame requires full Tx-Op protection. 1300 * Set this if either RTS or CTS Tx Flag gets set. 1301 */ 1302 #define TX_CMD_FLG_FULL_TXOP_PROT_MSK cpu_to_le32(1 << 7) 1303 1304 /* Tx antenna selection field; used only for 3945, reserved (0) for 4965 devices. 1305 * Set field to "0" to allow 3945 uCode to select antenna (normal usage). */ 1306 #define TX_CMD_FLG_ANT_SEL_MSK cpu_to_le32(0xf00) 1307 #define TX_CMD_FLG_ANT_A_MSK cpu_to_le32(1 << 8) 1308 #define TX_CMD_FLG_ANT_B_MSK cpu_to_le32(1 << 9) 1309 1310 /* 1: uCode overrides sequence control field in MAC header. 1311 * 0: Driver provides sequence control field in MAC header. 1312 * Set this for management frames, non-QOS data frames, non-unicast frames, 1313 * and also in Tx command embedded in C_SCAN for active scans. */ 1314 #define TX_CMD_FLG_SEQ_CTL_MSK cpu_to_le32(1 << 13) 1315 1316 /* 1: This frame is non-last MPDU; more fragments are coming. 1317 * 0: Last fragment, or not using fragmentation. */ 1318 #define TX_CMD_FLG_MORE_FRAG_MSK cpu_to_le32(1 << 14) 1319 1320 /* 1: uCode calculates and inserts Timestamp Function (TSF) in outgoing frame. 1321 * 0: No TSF required in outgoing frame. 1322 * Set this for transmitting beacons and probe responses. */ 1323 #define TX_CMD_FLG_TSF_MSK cpu_to_le32(1 << 16) 1324 1325 /* 1: Driver inserted 2 bytes pad after the MAC header, for (required) dword 1326 * alignment of frame's payload data field. 1327 * 0: No pad 1328 * Set this for MAC headers with 26 or 30 bytes, i.e. those with QOS or ADDR4 1329 * field (but not both). Driver must align frame data (i.e. data following 1330 * MAC header) to DWORD boundary. */ 1331 #define TX_CMD_FLG_MH_PAD_MSK cpu_to_le32(1 << 20) 1332 1333 /* accelerate aggregation support 1334 * 0 - no CCMP encryption; 1 - CCMP encryption */ 1335 #define TX_CMD_FLG_AGG_CCMP_MSK cpu_to_le32(1 << 22) 1336 1337 /* HCCA-AP - disable duration overwriting. */ 1338 #define TX_CMD_FLG_DUR_MSK cpu_to_le32(1 << 25) 1339 1340 /* 1341 * TX command security control 1342 */ 1343 #define TX_CMD_SEC_WEP 0x01 1344 #define TX_CMD_SEC_CCM 0x02 1345 #define TX_CMD_SEC_TKIP 0x03 1346 #define TX_CMD_SEC_MSK 0x03 1347 #define TX_CMD_SEC_SHIFT 6 1348 #define TX_CMD_SEC_KEY128 0x08 1349 1350 /* 1351 * C_TX = 0x1c (command) 1352 */ 1353 1354 struct il3945_tx_cmd { 1355 /* 1356 * MPDU byte count: 1357 * MAC header (24/26/30/32 bytes) + 2 bytes pad if 26/30 header size, 1358 * + 8 byte IV for CCM or TKIP (not used for WEP) 1359 * + Data payload 1360 * + 8-byte MIC (not used for CCM/WEP) 1361 * NOTE: Does not include Tx command bytes, post-MAC pad bytes, 1362 * MIC (CCM) 8 bytes, ICV (WEP/TKIP/CKIP) 4 bytes, CRC 4 bytes.i 1363 * Range: 14-2342 bytes. 1364 */ 1365 __le16 len; 1366 1367 /* 1368 * MPDU or MSDU byte count for next frame. 1369 * Used for fragmentation and bursting, but not 11n aggregation. 1370 * Same as "len", but for next frame. Set to 0 if not applicable. 1371 */ 1372 __le16 next_frame_len; 1373 1374 __le32 tx_flags; /* TX_CMD_FLG_* */ 1375 1376 u8 rate; 1377 1378 /* Index of recipient station in uCode's station table */ 1379 u8 sta_id; 1380 u8 tid_tspec; 1381 u8 sec_ctl; 1382 u8 key[16]; 1383 union { 1384 u8 byte[8]; 1385 __le16 word[4]; 1386 __le32 dw[2]; 1387 } tkip_mic; 1388 __le32 next_frame_info; 1389 union { 1390 __le32 life_time; 1391 __le32 attempt; 1392 } stop_time; 1393 u8 supp_rates[2]; 1394 u8 rts_retry_limit; /*byte 50 */ 1395 u8 data_retry_limit; /*byte 51 */ 1396 union { 1397 __le16 pm_frame_timeout; 1398 __le16 attempt_duration; 1399 } timeout; 1400 1401 /* 1402 * Duration of EDCA burst Tx Opportunity, in 32-usec units. 1403 * Set this if txop time is not specified by HCCA protocol (e.g. by AP). 1404 */ 1405 __le16 driver_txop; 1406 1407 /* 1408 * MAC header goes here, followed by 2 bytes padding if MAC header 1409 * length is 26 or 30 bytes, followed by payload data 1410 */ 1411 u8 payload[0]; 1412 struct ieee80211_hdr hdr[]; 1413 } __packed; 1414 1415 /* 1416 * C_TX = 0x1c (response) 1417 */ 1418 struct il3945_tx_resp { 1419 u8 failure_rts; 1420 u8 failure_frame; 1421 u8 bt_kill_count; 1422 u8 rate; 1423 __le32 wireless_media_time; 1424 __le32 status; /* TX status */ 1425 } __packed; 1426 1427 /* 1428 * 4965 uCode updates these Tx attempt count values in host DRAM. 1429 * Used for managing Tx retries when expecting block-acks. 1430 * Driver should set these fields to 0. 1431 */ 1432 struct il_dram_scratch { 1433 u8 try_cnt; /* Tx attempts */ 1434 u8 bt_kill_cnt; /* Tx attempts blocked by Bluetooth device */ 1435 __le16 reserved; 1436 } __packed; 1437 1438 struct il_tx_cmd { 1439 /* 1440 * MPDU byte count: 1441 * MAC header (24/26/30/32 bytes) + 2 bytes pad if 26/30 header size, 1442 * + 8 byte IV for CCM or TKIP (not used for WEP) 1443 * + Data payload 1444 * + 8-byte MIC (not used for CCM/WEP) 1445 * NOTE: Does not include Tx command bytes, post-MAC pad bytes, 1446 * MIC (CCM) 8 bytes, ICV (WEP/TKIP/CKIP) 4 bytes, CRC 4 bytes.i 1447 * Range: 14-2342 bytes. 1448 */ 1449 __le16 len; 1450 1451 /* 1452 * MPDU or MSDU byte count for next frame. 1453 * Used for fragmentation and bursting, but not 11n aggregation. 1454 * Same as "len", but for next frame. Set to 0 if not applicable. 1455 */ 1456 __le16 next_frame_len; 1457 1458 __le32 tx_flags; /* TX_CMD_FLG_* */ 1459 1460 /* uCode may modify this field of the Tx command (in host DRAM!). 1461 * Driver must also set dram_lsb_ptr and dram_msb_ptr in this cmd. */ 1462 struct il_dram_scratch scratch; 1463 1464 /* Rate for *all* Tx attempts, if TX_CMD_FLG_STA_RATE_MSK is cleared. */ 1465 __le32 rate_n_flags; /* RATE_MCS_* */ 1466 1467 /* Index of destination station in uCode's station table */ 1468 u8 sta_id; 1469 1470 /* Type of security encryption: CCM or TKIP */ 1471 u8 sec_ctl; /* TX_CMD_SEC_* */ 1472 1473 /* 1474 * Index into rate table (see C_TX_LINK_QUALITY_CMD) for initial 1475 * Tx attempt, if TX_CMD_FLG_STA_RATE_MSK is set. Normally "0" for 1476 * data frames, this field may be used to selectively reduce initial 1477 * rate (via non-0 value) for special frames (e.g. management), while 1478 * still supporting rate scaling for all frames. 1479 */ 1480 u8 initial_rate_idx; 1481 u8 reserved; 1482 u8 key[16]; 1483 __le16 next_frame_flags; 1484 __le16 reserved2; 1485 union { 1486 __le32 life_time; 1487 __le32 attempt; 1488 } stop_time; 1489 1490 /* Host DRAM physical address pointer to "scratch" in this command. 1491 * Must be dword aligned. "0" in dram_lsb_ptr disables usage. */ 1492 __le32 dram_lsb_ptr; 1493 u8 dram_msb_ptr; 1494 1495 u8 rts_retry_limit; /*byte 50 */ 1496 u8 data_retry_limit; /*byte 51 */ 1497 u8 tid_tspec; 1498 union { 1499 __le16 pm_frame_timeout; 1500 __le16 attempt_duration; 1501 } timeout; 1502 1503 /* 1504 * Duration of EDCA burst Tx Opportunity, in 32-usec units. 1505 * Set this if txop time is not specified by HCCA protocol (e.g. by AP). 1506 */ 1507 __le16 driver_txop; 1508 1509 /* 1510 * MAC header goes here, followed by 2 bytes padding if MAC header 1511 * length is 26 or 30 bytes, followed by payload data 1512 */ 1513 u8 payload[0]; 1514 struct ieee80211_hdr hdr[]; 1515 } __packed; 1516 1517 /* TX command response is sent after *3945* transmission attempts. 1518 * 1519 * NOTES: 1520 * 1521 * TX_STATUS_FAIL_NEXT_FRAG 1522 * 1523 * If the fragment flag in the MAC header for the frame being transmitted 1524 * is set and there is insufficient time to transmit the next frame, the 1525 * TX status will be returned with 'TX_STATUS_FAIL_NEXT_FRAG'. 1526 * 1527 * TX_STATUS_FIFO_UNDERRUN 1528 * 1529 * Indicates the host did not provide bytes to the FIFO fast enough while 1530 * a TX was in progress. 1531 * 1532 * TX_STATUS_FAIL_MGMNT_ABORT 1533 * 1534 * This status is only possible if the ABORT ON MGMT RX parameter was 1535 * set to true with the TX command. 1536 * 1537 * If the MSB of the status parameter is set then an abort sequence is 1538 * required. This sequence consists of the host activating the TX Abort 1539 * control line, and then waiting for the TX Abort command response. This 1540 * indicates that a the device is no longer in a transmit state, and that the 1541 * command FIFO has been cleared. The host must then deactivate the TX Abort 1542 * control line. Receiving is still allowed in this case. 1543 */ 1544 enum { 1545 TX_3945_STATUS_SUCCESS = 0x01, 1546 TX_3945_STATUS_DIRECT_DONE = 0x02, 1547 TX_3945_STATUS_FAIL_SHORT_LIMIT = 0x82, 1548 TX_3945_STATUS_FAIL_LONG_LIMIT = 0x83, 1549 TX_3945_STATUS_FAIL_FIFO_UNDERRUN = 0x84, 1550 TX_3945_STATUS_FAIL_MGMNT_ABORT = 0x85, 1551 TX_3945_STATUS_FAIL_NEXT_FRAG = 0x86, 1552 TX_3945_STATUS_FAIL_LIFE_EXPIRE = 0x87, 1553 TX_3945_STATUS_FAIL_DEST_PS = 0x88, 1554 TX_3945_STATUS_FAIL_ABORTED = 0x89, 1555 TX_3945_STATUS_FAIL_BT_RETRY = 0x8a, 1556 TX_3945_STATUS_FAIL_STA_INVALID = 0x8b, 1557 TX_3945_STATUS_FAIL_FRAG_DROPPED = 0x8c, 1558 TX_3945_STATUS_FAIL_TID_DISABLE = 0x8d, 1559 TX_3945_STATUS_FAIL_FRAME_FLUSHED = 0x8e, 1560 TX_3945_STATUS_FAIL_INSUFFICIENT_CF_POLL = 0x8f, 1561 TX_3945_STATUS_FAIL_TX_LOCKED = 0x90, 1562 TX_3945_STATUS_FAIL_NO_BEACON_ON_RADAR = 0x91, 1563 }; 1564 1565 /* 1566 * TX command response is sent after *4965* transmission attempts. 1567 * 1568 * both postpone and abort status are expected behavior from uCode. there is 1569 * no special operation required from driver; except for RFKILL_FLUSH, 1570 * which required tx flush host command to flush all the tx frames in queues 1571 */ 1572 enum { 1573 TX_STATUS_SUCCESS = 0x01, 1574 TX_STATUS_DIRECT_DONE = 0x02, 1575 /* postpone TX */ 1576 TX_STATUS_POSTPONE_DELAY = 0x40, 1577 TX_STATUS_POSTPONE_FEW_BYTES = 0x41, 1578 TX_STATUS_POSTPONE_QUIET_PERIOD = 0x43, 1579 TX_STATUS_POSTPONE_CALC_TTAK = 0x44, 1580 /* abort TX */ 1581 TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY = 0x81, 1582 TX_STATUS_FAIL_SHORT_LIMIT = 0x82, 1583 TX_STATUS_FAIL_LONG_LIMIT = 0x83, 1584 TX_STATUS_FAIL_FIFO_UNDERRUN = 0x84, 1585 TX_STATUS_FAIL_DRAIN_FLOW = 0x85, 1586 TX_STATUS_FAIL_RFKILL_FLUSH = 0x86, 1587 TX_STATUS_FAIL_LIFE_EXPIRE = 0x87, 1588 TX_STATUS_FAIL_DEST_PS = 0x88, 1589 TX_STATUS_FAIL_HOST_ABORTED = 0x89, 1590 TX_STATUS_FAIL_BT_RETRY = 0x8a, 1591 TX_STATUS_FAIL_STA_INVALID = 0x8b, 1592 TX_STATUS_FAIL_FRAG_DROPPED = 0x8c, 1593 TX_STATUS_FAIL_TID_DISABLE = 0x8d, 1594 TX_STATUS_FAIL_FIFO_FLUSHED = 0x8e, 1595 TX_STATUS_FAIL_INSUFFICIENT_CF_POLL = 0x8f, 1596 TX_STATUS_FAIL_PASSIVE_NO_RX = 0x90, 1597 TX_STATUS_FAIL_NO_BEACON_ON_RADAR = 0x91, 1598 }; 1599 1600 #define TX_PACKET_MODE_REGULAR 0x0000 1601 #define TX_PACKET_MODE_BURST_SEQ 0x0100 1602 #define TX_PACKET_MODE_BURST_FIRST 0x0200 1603 1604 enum { 1605 TX_POWER_PA_NOT_ACTIVE = 0x0, 1606 }; 1607 1608 enum { 1609 TX_STATUS_MSK = 0x000000ff, /* bits 0:7 */ 1610 TX_STATUS_DELAY_MSK = 0x00000040, 1611 TX_STATUS_ABORT_MSK = 0x00000080, 1612 TX_PACKET_MODE_MSK = 0x0000ff00, /* bits 8:15 */ 1613 TX_FIFO_NUMBER_MSK = 0x00070000, /* bits 16:18 */ 1614 TX_RESERVED = 0x00780000, /* bits 19:22 */ 1615 TX_POWER_PA_DETECT_MSK = 0x7f800000, /* bits 23:30 */ 1616 TX_ABORT_REQUIRED_MSK = 0x80000000, /* bits 31:31 */ 1617 }; 1618 1619 /* ******************************* 1620 * TX aggregation status 1621 ******************************* */ 1622 1623 enum { 1624 AGG_TX_STATE_TRANSMITTED = 0x00, 1625 AGG_TX_STATE_UNDERRUN_MSK = 0x01, 1626 AGG_TX_STATE_FEW_BYTES_MSK = 0x04, 1627 AGG_TX_STATE_ABORT_MSK = 0x08, 1628 AGG_TX_STATE_LAST_SENT_TTL_MSK = 0x10, 1629 AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK = 0x20, 1630 AGG_TX_STATE_SCD_QUERY_MSK = 0x80, 1631 AGG_TX_STATE_TEST_BAD_CRC32_MSK = 0x100, 1632 AGG_TX_STATE_RESPONSE_MSK = 0x1ff, 1633 AGG_TX_STATE_DUMP_TX_MSK = 0x200, 1634 AGG_TX_STATE_DELAY_TX_MSK = 0x400 1635 }; 1636 1637 #define AGG_TX_STATUS_MSK 0x00000fff /* bits 0:11 */ 1638 #define AGG_TX_TRY_MSK 0x0000f000 /* bits 12:15 */ 1639 1640 #define AGG_TX_STATE_LAST_SENT_MSK (AGG_TX_STATE_LAST_SENT_TTL_MSK | \ 1641 AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK) 1642 1643 /* # tx attempts for first frame in aggregation */ 1644 #define AGG_TX_STATE_TRY_CNT_POS 12 1645 #define AGG_TX_STATE_TRY_CNT_MSK 0xf000 1646 1647 /* Command ID and sequence number of Tx command for this frame */ 1648 #define AGG_TX_STATE_SEQ_NUM_POS 16 1649 #define AGG_TX_STATE_SEQ_NUM_MSK 0xffff0000 1650 1651 /* 1652 * C_TX = 0x1c (response) 1653 * 1654 * This response may be in one of two slightly different formats, indicated 1655 * by the frame_count field: 1656 * 1657 * 1) No aggregation (frame_count == 1). This reports Tx results for 1658 * a single frame. Multiple attempts, at various bit rates, may have 1659 * been made for this frame. 1660 * 1661 * 2) Aggregation (frame_count > 1). This reports Tx results for 1662 * 2 or more frames that used block-acknowledge. All frames were 1663 * transmitted at same rate. Rate scaling may have been used if first 1664 * frame in this new agg block failed in previous agg block(s). 1665 * 1666 * Note that, for aggregation, ACK (block-ack) status is not delivered here; 1667 * block-ack has not been received by the time the 4965 device records 1668 * this status. 1669 * This status relates to reasons the tx might have been blocked or aborted 1670 * within the sending station (this 4965 device), rather than whether it was 1671 * received successfully by the destination station. 1672 */ 1673 struct agg_tx_status { 1674 __le16 status; 1675 __le16 sequence; 1676 } __packed; 1677 1678 struct il4965_tx_resp { 1679 u8 frame_count; /* 1 no aggregation, >1 aggregation */ 1680 u8 bt_kill_count; /* # blocked by bluetooth (unused for agg) */ 1681 u8 failure_rts; /* # failures due to unsuccessful RTS */ 1682 u8 failure_frame; /* # failures due to no ACK (unused for agg) */ 1683 1684 /* For non-agg: Rate at which frame was successful. 1685 * For agg: Rate at which all frames were transmitted. */ 1686 __le32 rate_n_flags; /* RATE_MCS_* */ 1687 1688 /* For non-agg: RTS + CTS + frame tx attempts time + ACK. 1689 * For agg: RTS + CTS + aggregation tx time + block-ack time. */ 1690 __le16 wireless_media_time; /* uSecs */ 1691 1692 __le16 reserved; 1693 __le32 pa_power1; /* RF power amplifier measurement (not used) */ 1694 __le32 pa_power2; 1695 1696 /* 1697 * For non-agg: frame status TX_STATUS_* 1698 * For agg: status of 1st frame, AGG_TX_STATE_*; other frame status 1699 * fields follow this one, up to frame_count. 1700 * Bit fields: 1701 * 11- 0: AGG_TX_STATE_* status code 1702 * 15-12: Retry count for 1st frame in aggregation (retries 1703 * occur if tx failed for this frame when it was a 1704 * member of a previous aggregation block). If rate 1705 * scaling is used, retry count indicates the rate 1706 * table entry used for all frames in the new agg. 1707 * 31-16: Sequence # for this frame's Tx cmd (not SSN!) 1708 */ 1709 union { 1710 __le32 status; 1711 struct agg_tx_status agg_status[0]; /* for each agg frame */ 1712 } u; 1713 } __packed; 1714 1715 /* 1716 * N_COMPRESSED_BA = 0xc5 (response only, not a command) 1717 * 1718 * Reports Block-Acknowledge from recipient station 1719 */ 1720 struct il_compressed_ba_resp { 1721 __le32 sta_addr_lo32; 1722 __le16 sta_addr_hi16; 1723 __le16 reserved; 1724 1725 /* Index of recipient (BA-sending) station in uCode's station table */ 1726 u8 sta_id; 1727 u8 tid; 1728 __le16 seq_ctl; 1729 __le64 bitmap; 1730 __le16 scd_flow; 1731 __le16 scd_ssn; 1732 } __packed; 1733 1734 /* 1735 * C_TX_PWR_TBL = 0x97 (command, has simple generic response) 1736 * 1737 * See details under "TXPOWER" in 4965.h. 1738 */ 1739 1740 struct il3945_txpowertable_cmd { 1741 u8 band; /* 0: 5 GHz, 1: 2.4 GHz */ 1742 u8 reserved; 1743 __le16 channel; 1744 struct il3945_power_per_rate power[IL_MAX_RATES]; 1745 } __packed; 1746 1747 struct il4965_txpowertable_cmd { 1748 u8 band; /* 0: 5 GHz, 1: 2.4 GHz */ 1749 u8 reserved; 1750 __le16 channel; 1751 struct il4965_tx_power_db tx_power; 1752 } __packed; 1753 1754 /** 1755 * struct il3945_rate_scaling_cmd - Rate Scaling Command & Response 1756 * 1757 * C_RATE_SCALE = 0x47 (command, has simple generic response) 1758 * 1759 * NOTE: The table of rates passed to the uCode via the 1760 * RATE_SCALE command sets up the corresponding order of 1761 * rates used for all related commands, including rate 1762 * masks, etc. 1763 * 1764 * For example, if you set 9MB (PLCP 0x0f) as the first 1765 * rate in the rate table, the bit mask for that rate 1766 * when passed through ofdm_basic_rates on the C_RXON 1767 * command would be bit 0 (1 << 0) 1768 */ 1769 struct il3945_rate_scaling_info { 1770 __le16 rate_n_flags; 1771 u8 try_cnt; 1772 u8 next_rate_idx; 1773 } __packed; 1774 1775 struct il3945_rate_scaling_cmd { 1776 u8 table_id; 1777 u8 reserved[3]; 1778 struct il3945_rate_scaling_info table[IL_MAX_RATES]; 1779 } __packed; 1780 1781 /*RS_NEW_API: only TLC_RTS remains and moved to bit 0 */ 1782 #define LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK (1 << 0) 1783 1784 /* # of EDCA prioritized tx fifos */ 1785 #define LINK_QUAL_AC_NUM AC_NUM 1786 1787 /* # entries in rate scale table to support Tx retries */ 1788 #define LINK_QUAL_MAX_RETRY_NUM 16 1789 1790 /* Tx antenna selection values */ 1791 #define LINK_QUAL_ANT_A_MSK (1 << 0) 1792 #define LINK_QUAL_ANT_B_MSK (1 << 1) 1793 #define LINK_QUAL_ANT_MSK (LINK_QUAL_ANT_A_MSK|LINK_QUAL_ANT_B_MSK) 1794 1795 /** 1796 * struct il_link_qual_general_params 1797 * 1798 * Used in C_TX_LINK_QUALITY_CMD 1799 */ 1800 struct il_link_qual_general_params { 1801 u8 flags; 1802 1803 /* No entries at or above this (driver chosen) idx contain MIMO */ 1804 u8 mimo_delimiter; 1805 1806 /* Best single antenna to use for single stream (legacy, SISO). */ 1807 u8 single_stream_ant_msk; /* LINK_QUAL_ANT_* */ 1808 1809 /* Best antennas to use for MIMO (unused for 4965, assumes both). */ 1810 u8 dual_stream_ant_msk; /* LINK_QUAL_ANT_* */ 1811 1812 /* 1813 * If driver needs to use different initial rates for different 1814 * EDCA QOS access categories (as implemented by tx fifos 0-3), 1815 * this table will set that up, by indicating the idxes in the 1816 * rs_table[LINK_QUAL_MAX_RETRY_NUM] rate table at which to start. 1817 * Otherwise, driver should set all entries to 0. 1818 * 1819 * Entry usage: 1820 * 0 = Background, 1 = Best Effort (normal), 2 = Video, 3 = Voice 1821 * TX FIFOs above 3 use same value (typically 0) as TX FIFO 3. 1822 */ 1823 u8 start_rate_idx[LINK_QUAL_AC_NUM]; 1824 } __packed; 1825 1826 #define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) /* 4 milliseconds */ 1827 #define LINK_QUAL_AGG_TIME_LIMIT_MAX (8000) 1828 #define LINK_QUAL_AGG_TIME_LIMIT_MIN (100) 1829 1830 #define LINK_QUAL_AGG_DISABLE_START_DEF (3) 1831 #define LINK_QUAL_AGG_DISABLE_START_MAX (255) 1832 #define LINK_QUAL_AGG_DISABLE_START_MIN (0) 1833 1834 #define LINK_QUAL_AGG_FRAME_LIMIT_DEF (31) 1835 #define LINK_QUAL_AGG_FRAME_LIMIT_MAX (63) 1836 #define LINK_QUAL_AGG_FRAME_LIMIT_MIN (0) 1837 1838 /** 1839 * struct il_link_qual_agg_params 1840 * 1841 * Used in C_TX_LINK_QUALITY_CMD 1842 */ 1843 struct il_link_qual_agg_params { 1844 1845 /* 1846 *Maximum number of uSec in aggregation. 1847 * default set to 4000 (4 milliseconds) if not configured in .cfg 1848 */ 1849 __le16 agg_time_limit; 1850 1851 /* 1852 * Number of Tx retries allowed for a frame, before that frame will 1853 * no longer be considered for the start of an aggregation sequence 1854 * (scheduler will then try to tx it as single frame). 1855 * Driver should set this to 3. 1856 */ 1857 u8 agg_dis_start_th; 1858 1859 /* 1860 * Maximum number of frames in aggregation. 1861 * 0 = no limit (default). 1 = no aggregation. 1862 * Other values = max # frames in aggregation. 1863 */ 1864 u8 agg_frame_cnt_limit; 1865 1866 __le32 reserved; 1867 } __packed; 1868 1869 /* 1870 * C_TX_LINK_QUALITY_CMD = 0x4e (command, has simple generic response) 1871 * 1872 * For 4965 devices only; 3945 uses C_RATE_SCALE. 1873 * 1874 * Each station in the 4965 device's internal station table has its own table 1875 * of 16 1876 * Tx rates and modulation modes (e.g. legacy/SISO/MIMO) for retrying Tx when 1877 * an ACK is not received. This command replaces the entire table for 1878 * one station. 1879 * 1880 * NOTE: Station must already be in 4965 device's station table. 1881 * Use C_ADD_STA. 1882 * 1883 * The rate scaling procedures described below work well. Of course, other 1884 * procedures are possible, and may work better for particular environments. 1885 * 1886 * 1887 * FILLING THE RATE TBL 1888 * 1889 * Given a particular initial rate and mode, as determined by the rate 1890 * scaling algorithm described below, the Linux driver uses the following 1891 * formula to fill the rs_table[LINK_QUAL_MAX_RETRY_NUM] rate table in the 1892 * Link Quality command: 1893 * 1894 * 1895 * 1) If using High-throughput (HT) (SISO or MIMO) initial rate: 1896 * a) Use this same initial rate for first 3 entries. 1897 * b) Find next lower available rate using same mode (SISO or MIMO), 1898 * use for next 3 entries. If no lower rate available, switch to 1899 * legacy mode (no HT40 channel, no MIMO, no short guard interval). 1900 * c) If using MIMO, set command's mimo_delimiter to number of entries 1901 * using MIMO (3 or 6). 1902 * d) After trying 2 HT rates, switch to legacy mode (no HT40 channel, 1903 * no MIMO, no short guard interval), at the next lower bit rate 1904 * (e.g. if second HT bit rate was 54, try 48 legacy), and follow 1905 * legacy procedure for remaining table entries. 1906 * 1907 * 2) If using legacy initial rate: 1908 * a) Use the initial rate for only one entry. 1909 * b) For each following entry, reduce the rate to next lower available 1910 * rate, until reaching the lowest available rate. 1911 * c) When reducing rate, also switch antenna selection. 1912 * d) Once lowest available rate is reached, repeat this rate until 1913 * rate table is filled (16 entries), switching antenna each entry. 1914 * 1915 * 1916 * ACCUMULATING HISTORY 1917 * 1918 * The rate scaling algorithm for 4965 devices, as implemented in Linux driver, 1919 * uses two sets of frame Tx success history: One for the current/active 1920 * modulation mode, and one for a speculative/search mode that is being 1921 * attempted. If the speculative mode turns out to be more effective (i.e. 1922 * actual transfer rate is better), then the driver continues to use the 1923 * speculative mode as the new current active mode. 1924 * 1925 * Each history set contains, separately for each possible rate, data for a 1926 * sliding win of the 62 most recent tx attempts at that rate. The data 1927 * includes a shifting bitmap of success(1)/failure(0), and sums of successful 1928 * and attempted frames, from which the driver can additionally calculate a 1929 * success ratio (success / attempted) and number of failures 1930 * (attempted - success), and control the size of the win (attempted). 1931 * The driver uses the bit map to remove successes from the success sum, as 1932 * the oldest tx attempts fall out of the win. 1933 * 1934 * When the 4965 device makes multiple tx attempts for a given frame, each 1935 * attempt might be at a different rate, and have different modulation 1936 * characteristics (e.g. antenna, fat channel, short guard interval), as set 1937 * up in the rate scaling table in the Link Quality command. The driver must 1938 * determine which rate table entry was used for each tx attempt, to determine 1939 * which rate-specific history to update, and record only those attempts that 1940 * match the modulation characteristics of the history set. 1941 * 1942 * When using block-ack (aggregation), all frames are transmitted at the same 1943 * rate, since there is no per-attempt acknowledgment from the destination 1944 * station. The Tx response struct il_tx_resp indicates the Tx rate in 1945 * rate_n_flags field. After receiving a block-ack, the driver can update 1946 * history for the entire block all at once. 1947 * 1948 * 1949 * FINDING BEST STARTING RATE: 1950 * 1951 * When working with a selected initial modulation mode (see below), the 1952 * driver attempts to find a best initial rate. The initial rate is the 1953 * first entry in the Link Quality command's rate table. 1954 * 1955 * 1) Calculate actual throughput (success ratio * expected throughput, see 1956 * table below) for current initial rate. Do this only if enough frames 1957 * have been attempted to make the value meaningful: at least 6 failed 1958 * tx attempts, or at least 8 successes. If not enough, don't try rate 1959 * scaling yet. 1960 * 1961 * 2) Find available rates adjacent to current initial rate. Available means: 1962 * a) supported by hardware && 1963 * b) supported by association && 1964 * c) within any constraints selected by user 1965 * 1966 * 3) Gather measured throughputs for adjacent rates. These might not have 1967 * enough history to calculate a throughput. That's okay, we might try 1968 * using one of them anyway! 1969 * 1970 * 4) Try decreasing rate if, for current rate: 1971 * a) success ratio is < 15% || 1972 * b) lower adjacent rate has better measured throughput || 1973 * c) higher adjacent rate has worse throughput, and lower is unmeasured 1974 * 1975 * As a sanity check, if decrease was determined above, leave rate 1976 * unchanged if: 1977 * a) lower rate unavailable 1978 * b) success ratio at current rate > 85% (very good) 1979 * c) current measured throughput is better than expected throughput 1980 * of lower rate (under perfect 100% tx conditions, see table below) 1981 * 1982 * 5) Try increasing rate if, for current rate: 1983 * a) success ratio is < 15% || 1984 * b) both adjacent rates' throughputs are unmeasured (try it!) || 1985 * b) higher adjacent rate has better measured throughput || 1986 * c) lower adjacent rate has worse throughput, and higher is unmeasured 1987 * 1988 * As a sanity check, if increase was determined above, leave rate 1989 * unchanged if: 1990 * a) success ratio at current rate < 70%. This is not particularly 1991 * good performance; higher rate is sure to have poorer success. 1992 * 1993 * 6) Re-evaluate the rate after each tx frame. If working with block- 1994 * acknowledge, history and stats may be calculated for the entire 1995 * block (including prior history that fits within the history wins), 1996 * before re-evaluation. 1997 * 1998 * FINDING BEST STARTING MODULATION MODE: 1999 * 2000 * After working with a modulation mode for a "while" (and doing rate scaling), 2001 * the driver searches for a new initial mode in an attempt to improve 2002 * throughput. The "while" is measured by numbers of attempted frames: 2003 * 2004 * For legacy mode, search for new mode after: 2005 * 480 successful frames, or 160 failed frames 2006 * For high-throughput modes (SISO or MIMO), search for new mode after: 2007 * 4500 successful frames, or 400 failed frames 2008 * 2009 * Mode switch possibilities are (3 for each mode): 2010 * 2011 * For legacy: 2012 * Change antenna, try SISO (if HT association), try MIMO (if HT association) 2013 * For SISO: 2014 * Change antenna, try MIMO, try shortened guard interval (SGI) 2015 * For MIMO: 2016 * Try SISO antenna A, SISO antenna B, try shortened guard interval (SGI) 2017 * 2018 * When trying a new mode, use the same bit rate as the old/current mode when 2019 * trying antenna switches and shortened guard interval. When switching to 2020 * SISO from MIMO or legacy, or to MIMO from SISO or legacy, use a rate 2021 * for which the expected throughput (under perfect conditions) is about the 2022 * same or slightly better than the actual measured throughput delivered by 2023 * the old/current mode. 2024 * 2025 * Actual throughput can be estimated by multiplying the expected throughput 2026 * by the success ratio (successful / attempted tx frames). Frame size is 2027 * not considered in this calculation; it assumes that frame size will average 2028 * out to be fairly consistent over several samples. The following are 2029 * metric values for expected throughput assuming 100% success ratio. 2030 * Only G band has support for CCK rates: 2031 * 2032 * RATE: 1 2 5 11 6 9 12 18 24 36 48 54 60 2033 * 2034 * G: 7 13 35 58 40 57 72 98 121 154 177 186 186 2035 * A: 0 0 0 0 40 57 72 98 121 154 177 186 186 2036 * SISO 20MHz: 0 0 0 0 42 42 76 102 124 159 183 193 202 2037 * SGI SISO 20MHz: 0 0 0 0 46 46 82 110 132 168 192 202 211 2038 * MIMO 20MHz: 0 0 0 0 74 74 123 155 179 214 236 244 251 2039 * SGI MIMO 20MHz: 0 0 0 0 81 81 131 164 188 222 243 251 257 2040 * SISO 40MHz: 0 0 0 0 77 77 127 160 184 220 242 250 257 2041 * SGI SISO 40MHz: 0 0 0 0 83 83 135 169 193 229 250 257 264 2042 * MIMO 40MHz: 0 0 0 0 123 123 182 214 235 264 279 285 289 2043 * SGI MIMO 40MHz: 0 0 0 0 131 131 191 222 242 270 284 289 293 2044 * 2045 * After the new mode has been tried for a short while (minimum of 6 failed 2046 * frames or 8 successful frames), compare success ratio and actual throughput 2047 * estimate of the new mode with the old. If either is better with the new 2048 * mode, continue to use the new mode. 2049 * 2050 * Continue comparing modes until all 3 possibilities have been tried. 2051 * If moving from legacy to HT, try all 3 possibilities from the new HT 2052 * mode. After trying all 3, a best mode is found. Continue to use this mode 2053 * for the longer "while" described above (e.g. 480 successful frames for 2054 * legacy), and then repeat the search process. 2055 * 2056 */ 2057 struct il_link_quality_cmd { 2058 2059 /* Index of destination/recipient station in uCode's station table */ 2060 u8 sta_id; 2061 u8 reserved1; 2062 __le16 control; /* not used */ 2063 struct il_link_qual_general_params general_params; 2064 struct il_link_qual_agg_params agg_params; 2065 2066 /* 2067 * Rate info; when using rate-scaling, Tx command's initial_rate_idx 2068 * specifies 1st Tx rate attempted, via idx into this table. 2069 * 4965 devices works its way through table when retrying Tx. 2070 */ 2071 struct { 2072 __le32 rate_n_flags; /* RATE_MCS_*, RATE_* */ 2073 } rs_table[LINK_QUAL_MAX_RETRY_NUM]; 2074 __le32 reserved2; 2075 } __packed; 2076 2077 /* 2078 * BT configuration enable flags: 2079 * bit 0 - 1: BT channel announcement enabled 2080 * 0: disable 2081 * bit 1 - 1: priority of BT device enabled 2082 * 0: disable 2083 */ 2084 #define BT_COEX_DISABLE (0x0) 2085 #define BT_ENABLE_CHANNEL_ANNOUNCE BIT(0) 2086 #define BT_ENABLE_PRIORITY BIT(1) 2087 2088 #define BT_COEX_ENABLE (BT_ENABLE_CHANNEL_ANNOUNCE | BT_ENABLE_PRIORITY) 2089 2090 #define BT_LEAD_TIME_DEF (0x1E) 2091 2092 #define BT_MAX_KILL_DEF (0x5) 2093 2094 /* 2095 * C_BT_CONFIG = 0x9b (command, has simple generic response) 2096 * 2097 * 3945 and 4965 devices support hardware handshake with Bluetooth device on 2098 * same platform. Bluetooth device alerts wireless device when it will Tx; 2099 * wireless device can delay or kill its own Tx to accommodate. 2100 */ 2101 struct il_bt_cmd { 2102 u8 flags; 2103 u8 lead_time; 2104 u8 max_kill; 2105 u8 reserved; 2106 __le32 kill_ack_mask; 2107 __le32 kill_cts_mask; 2108 } __packed; 2109 2110 /****************************************************************************** 2111 * (6) 2112 * Spectrum Management (802.11h) Commands, Responses, Notifications: 2113 * 2114 *****************************************************************************/ 2115 2116 /* 2117 * Spectrum Management 2118 */ 2119 #define MEASUREMENT_FILTER_FLAG (RXON_FILTER_PROMISC_MSK | \ 2120 RXON_FILTER_CTL2HOST_MSK | \ 2121 RXON_FILTER_ACCEPT_GRP_MSK | \ 2122 RXON_FILTER_DIS_DECRYPT_MSK | \ 2123 RXON_FILTER_DIS_GRP_DECRYPT_MSK | \ 2124 RXON_FILTER_ASSOC_MSK | \ 2125 RXON_FILTER_BCON_AWARE_MSK) 2126 2127 struct il_measure_channel { 2128 __le32 duration; /* measurement duration in extended beacon 2129 * format */ 2130 u8 channel; /* channel to measure */ 2131 u8 type; /* see enum il_measure_type */ 2132 __le16 reserved; 2133 } __packed; 2134 2135 /* 2136 * C_SPECTRUM_MEASUREMENT = 0x74 (command) 2137 */ 2138 struct il_spectrum_cmd { 2139 __le16 len; /* number of bytes starting from token */ 2140 u8 token; /* token id */ 2141 u8 id; /* measurement id -- 0 or 1 */ 2142 u8 origin; /* 0 = TGh, 1 = other, 2 = TGk */ 2143 u8 periodic; /* 1 = periodic */ 2144 __le16 path_loss_timeout; 2145 __le32 start_time; /* start time in extended beacon format */ 2146 __le32 reserved2; 2147 __le32 flags; /* rxon flags */ 2148 __le32 filter_flags; /* rxon filter flags */ 2149 __le16 channel_count; /* minimum 1, maximum 10 */ 2150 __le16 reserved3; 2151 struct il_measure_channel channels[10]; 2152 } __packed; 2153 2154 /* 2155 * C_SPECTRUM_MEASUREMENT = 0x74 (response) 2156 */ 2157 struct il_spectrum_resp { 2158 u8 token; 2159 u8 id; /* id of the prior command replaced, or 0xff */ 2160 __le16 status; /* 0 - command will be handled 2161 * 1 - cannot handle (conflicts with another 2162 * measurement) */ 2163 } __packed; 2164 2165 enum il_measurement_state { 2166 IL_MEASUREMENT_START = 0, 2167 IL_MEASUREMENT_STOP = 1, 2168 }; 2169 2170 enum il_measurement_status { 2171 IL_MEASUREMENT_OK = 0, 2172 IL_MEASUREMENT_CONCURRENT = 1, 2173 IL_MEASUREMENT_CSA_CONFLICT = 2, 2174 IL_MEASUREMENT_TGH_CONFLICT = 3, 2175 /* 4-5 reserved */ 2176 IL_MEASUREMENT_STOPPED = 6, 2177 IL_MEASUREMENT_TIMEOUT = 7, 2178 IL_MEASUREMENT_PERIODIC_FAILED = 8, 2179 }; 2180 2181 #define NUM_ELEMENTS_IN_HISTOGRAM 8 2182 2183 struct il_measurement_histogram { 2184 __le32 ofdm[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 0.8usec counts */ 2185 __le32 cck[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 1usec counts */ 2186 } __packed; 2187 2188 /* clear channel availability counters */ 2189 struct il_measurement_cca_counters { 2190 __le32 ofdm; 2191 __le32 cck; 2192 } __packed; 2193 2194 enum il_measure_type { 2195 IL_MEASURE_BASIC = (1 << 0), 2196 IL_MEASURE_CHANNEL_LOAD = (1 << 1), 2197 IL_MEASURE_HISTOGRAM_RPI = (1 << 2), 2198 IL_MEASURE_HISTOGRAM_NOISE = (1 << 3), 2199 IL_MEASURE_FRAME = (1 << 4), 2200 /* bits 5:6 are reserved */ 2201 IL_MEASURE_IDLE = (1 << 7), 2202 }; 2203 2204 /* 2205 * N_SPECTRUM_MEASUREMENT = 0x75 (notification only, not a command) 2206 */ 2207 struct il_spectrum_notification { 2208 u8 id; /* measurement id -- 0 or 1 */ 2209 u8 token; 2210 u8 channel_idx; /* idx in measurement channel list */ 2211 u8 state; /* 0 - start, 1 - stop */ 2212 __le32 start_time; /* lower 32-bits of TSF */ 2213 u8 band; /* 0 - 5.2GHz, 1 - 2.4GHz */ 2214 u8 channel; 2215 u8 type; /* see enum il_measurement_type */ 2216 u8 reserved1; 2217 /* NOTE: cca_ofdm, cca_cck, basic_type, and histogram are only only 2218 * valid if applicable for measurement type requested. */ 2219 __le32 cca_ofdm; /* cca fraction time in 40Mhz clock periods */ 2220 __le32 cca_cck; /* cca fraction time in 44Mhz clock periods */ 2221 __le32 cca_time; /* channel load time in usecs */ 2222 u8 basic_type; /* 0 - bss, 1 - ofdm preamble, 2 - 2223 * unidentified */ 2224 u8 reserved2[3]; 2225 struct il_measurement_histogram histogram; 2226 __le32 stop_time; /* lower 32-bits of TSF */ 2227 __le32 status; /* see il_measurement_status */ 2228 } __packed; 2229 2230 /****************************************************************************** 2231 * (7) 2232 * Power Management Commands, Responses, Notifications: 2233 * 2234 *****************************************************************************/ 2235 2236 /** 2237 * struct il_powertable_cmd - Power Table Command 2238 * @flags: See below: 2239 * 2240 * C_POWER_TBL = 0x77 (command, has simple generic response) 2241 * 2242 * PM allow: 2243 * bit 0 - '0' Driver not allow power management 2244 * '1' Driver allow PM (use rest of parameters) 2245 * 2246 * uCode send sleep notifications: 2247 * bit 1 - '0' Don't send sleep notification 2248 * '1' send sleep notification (SEND_PM_NOTIFICATION) 2249 * 2250 * Sleep over DTIM 2251 * bit 2 - '0' PM have to walk up every DTIM 2252 * '1' PM could sleep over DTIM till listen Interval. 2253 * 2254 * PCI power managed 2255 * bit 3 - '0' (PCI_CFG_LINK_CTRL & 0x1) 2256 * '1' !(PCI_CFG_LINK_CTRL & 0x1) 2257 * 2258 * Fast PD 2259 * bit 4 - '1' Put radio to sleep when receiving frame for others 2260 * 2261 * Force sleep Modes 2262 * bit 31/30- '00' use both mac/xtal sleeps 2263 * '01' force Mac sleep 2264 * '10' force xtal sleep 2265 * '11' Illegal set 2266 * 2267 * NOTE: if sleep_interval[SLEEP_INTRVL_TBL_SIZE-1] > DTIM period then 2268 * ucode assume sleep over DTIM is allowed and we don't need to wake up 2269 * for every DTIM. 2270 */ 2271 #define IL_POWER_VEC_SIZE 5 2272 2273 #define IL_POWER_DRIVER_ALLOW_SLEEP_MSK cpu_to_le16(BIT(0)) 2274 #define IL_POWER_SLEEP_OVER_DTIM_MSK cpu_to_le16(BIT(2)) 2275 #define IL_POWER_PCI_PM_MSK cpu_to_le16(BIT(3)) 2276 2277 struct il3945_powertable_cmd { 2278 __le16 flags; 2279 u8 reserved[2]; 2280 __le32 rx_data_timeout; 2281 __le32 tx_data_timeout; 2282 __le32 sleep_interval[IL_POWER_VEC_SIZE]; 2283 } __packed; 2284 2285 struct il_powertable_cmd { 2286 __le16 flags; 2287 u8 keep_alive_seconds; /* 3945 reserved */ 2288 u8 debug_flags; /* 3945 reserved */ 2289 __le32 rx_data_timeout; 2290 __le32 tx_data_timeout; 2291 __le32 sleep_interval[IL_POWER_VEC_SIZE]; 2292 __le32 keep_alive_beacons; 2293 } __packed; 2294 2295 /* 2296 * N_PM_SLEEP = 0x7A (notification only, not a command) 2297 * all devices identical. 2298 */ 2299 struct il_sleep_notification { 2300 u8 pm_sleep_mode; 2301 u8 pm_wakeup_src; 2302 __le16 reserved; 2303 __le32 sleep_time; 2304 __le32 tsf_low; 2305 __le32 bcon_timer; 2306 } __packed; 2307 2308 /* Sleep states. all devices identical. */ 2309 enum { 2310 IL_PM_NO_SLEEP = 0, 2311 IL_PM_SLP_MAC = 1, 2312 IL_PM_SLP_FULL_MAC_UNASSOCIATE = 2, 2313 IL_PM_SLP_FULL_MAC_CARD_STATE = 3, 2314 IL_PM_SLP_PHY = 4, 2315 IL_PM_SLP_REPENT = 5, 2316 IL_PM_WAKEUP_BY_TIMER = 6, 2317 IL_PM_WAKEUP_BY_DRIVER = 7, 2318 IL_PM_WAKEUP_BY_RFKILL = 8, 2319 /* 3 reserved */ 2320 IL_PM_NUM_OF_MODES = 12, 2321 }; 2322 2323 /* 2324 * N_CARD_STATE = 0xa1 (notification only, not a command) 2325 */ 2326 struct il_card_state_notif { 2327 __le32 flags; 2328 } __packed; 2329 2330 #define HW_CARD_DISABLED 0x01 2331 #define SW_CARD_DISABLED 0x02 2332 #define CT_CARD_DISABLED 0x04 2333 #define RXON_CARD_DISABLED 0x10 2334 2335 struct il_ct_kill_config { 2336 __le32 reserved; 2337 __le32 critical_temperature_M; 2338 __le32 critical_temperature_R; 2339 } __packed; 2340 2341 /****************************************************************************** 2342 * (8) 2343 * Scan Commands, Responses, Notifications: 2344 * 2345 *****************************************************************************/ 2346 2347 #define SCAN_CHANNEL_TYPE_PASSIVE cpu_to_le32(0) 2348 #define SCAN_CHANNEL_TYPE_ACTIVE cpu_to_le32(1) 2349 2350 /** 2351 * struct il_scan_channel - entry in C_SCAN channel table 2352 * 2353 * One for each channel in the scan list. 2354 * Each channel can independently select: 2355 * 1) SSID for directed active scans 2356 * 2) Txpower setting (for rate specified within Tx command) 2357 * 3) How long to stay on-channel (behavior may be modified by quiet_time, 2358 * quiet_plcp_th, good_CRC_th) 2359 * 2360 * To avoid uCode errors, make sure the following are true (see comments 2361 * under struct il_scan_cmd about max_out_time and quiet_time): 2362 * 1) If using passive_dwell (i.e. passive_dwell != 0): 2363 * active_dwell <= passive_dwell (< max_out_time if max_out_time != 0) 2364 * 2) quiet_time <= active_dwell 2365 * 3) If restricting off-channel time (i.e. max_out_time !=0): 2366 * passive_dwell < max_out_time 2367 * active_dwell < max_out_time 2368 */ 2369 struct il3945_scan_channel { 2370 /* 2371 * type is defined as: 2372 * 0:0 1 = active, 0 = passive 2373 * 1:4 SSID direct bit map; if a bit is set, then corresponding 2374 * SSID IE is transmitted in probe request. 2375 * 5:7 reserved 2376 */ 2377 u8 type; 2378 u8 channel; /* band is selected by il3945_scan_cmd "flags" field */ 2379 struct il3945_tx_power tpc; 2380 __le16 active_dwell; /* in 1024-uSec TU (time units), typ 5-50 */ 2381 __le16 passive_dwell; /* in 1024-uSec TU (time units), typ 20-500 */ 2382 } __packed; 2383 2384 /* set number of direct probes u8 type */ 2385 #define IL39_SCAN_PROBE_MASK(n) ((BIT(n) | (BIT(n) - BIT(1)))) 2386 2387 struct il_scan_channel { 2388 /* 2389 * type is defined as: 2390 * 0:0 1 = active, 0 = passive 2391 * 1:20 SSID direct bit map; if a bit is set, then corresponding 2392 * SSID IE is transmitted in probe request. 2393 * 21:31 reserved 2394 */ 2395 __le32 type; 2396 __le16 channel; /* band is selected by il_scan_cmd "flags" field */ 2397 u8 tx_gain; /* gain for analog radio */ 2398 u8 dsp_atten; /* gain for DSP */ 2399 __le16 active_dwell; /* in 1024-uSec TU (time units), typ 5-50 */ 2400 __le16 passive_dwell; /* in 1024-uSec TU (time units), typ 20-500 */ 2401 } __packed; 2402 2403 /* set number of direct probes __le32 type */ 2404 #define IL_SCAN_PROBE_MASK(n) cpu_to_le32((BIT(n) | (BIT(n) - BIT(1)))) 2405 2406 /** 2407 * struct il_ssid_ie - directed scan network information element 2408 * 2409 * Up to 20 of these may appear in C_SCAN (Note: Only 4 are in 2410 * 3945 SCAN api), selected by "type" bit field in struct il_scan_channel; 2411 * each channel may select different ssids from among the 20 (4) entries. 2412 * SSID IEs get transmitted in reverse order of entry. 2413 */ 2414 struct il_ssid_ie { 2415 u8 id; 2416 u8 len; 2417 u8 ssid[32]; 2418 } __packed; 2419 2420 #define PROBE_OPTION_MAX_3945 4 2421 #define PROBE_OPTION_MAX 20 2422 #define TX_CMD_LIFE_TIME_INFINITE cpu_to_le32(0xFFFFFFFF) 2423 #define IL_GOOD_CRC_TH_DISABLED 0 2424 #define IL_GOOD_CRC_TH_DEFAULT cpu_to_le16(1) 2425 #define IL_GOOD_CRC_TH_NEVER cpu_to_le16(0xffff) 2426 #define IL_MAX_SCAN_SIZE 1024 2427 #define IL_MAX_CMD_SIZE 4096 2428 2429 /* 2430 * C_SCAN = 0x80 (command) 2431 * 2432 * The hardware scan command is very powerful; the driver can set it up to 2433 * maintain (relatively) normal network traffic while doing a scan in the 2434 * background. The max_out_time and suspend_time control the ratio of how 2435 * long the device stays on an associated network channel ("service channel") 2436 * vs. how long it's away from the service channel, i.e. tuned to other channels 2437 * for scanning. 2438 * 2439 * max_out_time is the max time off-channel (in usec), and suspend_time 2440 * is how long (in "extended beacon" format) that the scan is "suspended" 2441 * after returning to the service channel. That is, suspend_time is the 2442 * time that we stay on the service channel, doing normal work, between 2443 * scan segments. The driver may set these parameters differently to support 2444 * scanning when associated vs. not associated, and light vs. heavy traffic 2445 * loads when associated. 2446 * 2447 * After receiving this command, the device's scan engine does the following; 2448 * 2449 * 1) Sends SCAN_START notification to driver 2450 * 2) Checks to see if it has time to do scan for one channel 2451 * 3) Sends NULL packet, with power-save (PS) bit set to 1, 2452 * to tell AP that we're going off-channel 2453 * 4) Tunes to first channel in scan list, does active or passive scan 2454 * 5) Sends SCAN_RESULT notification to driver 2455 * 6) Checks to see if it has time to do scan on *next* channel in list 2456 * 7) Repeats 4-6 until it no longer has time to scan the next channel 2457 * before max_out_time expires 2458 * 8) Returns to service channel 2459 * 9) Sends NULL packet with PS=0 to tell AP that we're back 2460 * 10) Stays on service channel until suspend_time expires 2461 * 11) Repeats entire process 2-10 until list is complete 2462 * 12) Sends SCAN_COMPLETE notification 2463 * 2464 * For fast, efficient scans, the scan command also has support for staying on 2465 * a channel for just a short time, if doing active scanning and getting no 2466 * responses to the transmitted probe request. This time is controlled by 2467 * quiet_time, and the number of received packets below which a channel is 2468 * considered "quiet" is controlled by quiet_plcp_threshold. 2469 * 2470 * For active scanning on channels that have regulatory restrictions against 2471 * blindly transmitting, the scan can listen before transmitting, to make sure 2472 * that there is already legitimate activity on the channel. If enough 2473 * packets are cleanly received on the channel (controlled by good_CRC_th, 2474 * typical value 1), the scan engine starts transmitting probe requests. 2475 * 2476 * Driver must use separate scan commands for 2.4 vs. 5 GHz bands. 2477 * 2478 * To avoid uCode errors, see timing restrictions described under 2479 * struct il_scan_channel. 2480 */ 2481 2482 struct il3945_scan_cmd { 2483 __le16 len; 2484 u8 reserved0; 2485 u8 channel_count; /* # channels in channel list */ 2486 __le16 quiet_time; /* dwell only this # millisecs on quiet channel 2487 * (only for active scan) */ 2488 __le16 quiet_plcp_th; /* quiet chnl is < this # pkts (typ. 1) */ 2489 __le16 good_CRC_th; /* passive -> active promotion threshold */ 2490 __le16 reserved1; 2491 __le32 max_out_time; /* max usec to be away from associated (service) 2492 * channel */ 2493 __le32 suspend_time; /* pause scan this long (in "extended beacon 2494 * format") when returning to service channel: 2495 * 3945; 31:24 # beacons, 19:0 additional usec, 2496 * 4965; 31:22 # beacons, 21:0 additional usec. 2497 */ 2498 __le32 flags; /* RXON_FLG_* */ 2499 __le32 filter_flags; /* RXON_FILTER_* */ 2500 2501 /* For active scans (set to all-0s for passive scans). 2502 * Does not include payload. Must specify Tx rate; no rate scaling. */ 2503 struct il3945_tx_cmd tx_cmd; 2504 2505 /* For directed active scans (set to all-0s otherwise) */ 2506 struct il_ssid_ie direct_scan[PROBE_OPTION_MAX_3945]; 2507 2508 /* 2509 * Probe request frame, followed by channel list. 2510 * 2511 * Size of probe request frame is specified by byte count in tx_cmd. 2512 * Channel list follows immediately after probe request frame. 2513 * Number of channels in list is specified by channel_count. 2514 * Each channel in list is of type: 2515 * 2516 * struct il3945_scan_channel channels[0]; 2517 * 2518 * NOTE: Only one band of channels can be scanned per pass. You 2519 * must not mix 2.4GHz channels and 5.2GHz channels, and you must wait 2520 * for one scan to complete (i.e. receive N_SCAN_COMPLETE) 2521 * before requesting another scan. 2522 */ 2523 u8 data[]; 2524 } __packed; 2525 2526 struct il_scan_cmd { 2527 __le16 len; 2528 u8 reserved0; 2529 u8 channel_count; /* # channels in channel list */ 2530 __le16 quiet_time; /* dwell only this # millisecs on quiet channel 2531 * (only for active scan) */ 2532 __le16 quiet_plcp_th; /* quiet chnl is < this # pkts (typ. 1) */ 2533 __le16 good_CRC_th; /* passive -> active promotion threshold */ 2534 __le16 rx_chain; /* RXON_RX_CHAIN_* */ 2535 __le32 max_out_time; /* max usec to be away from associated (service) 2536 * channel */ 2537 __le32 suspend_time; /* pause scan this long (in "extended beacon 2538 * format") when returning to service chnl: 2539 * 3945; 31:24 # beacons, 19:0 additional usec, 2540 * 4965; 31:22 # beacons, 21:0 additional usec. 2541 */ 2542 __le32 flags; /* RXON_FLG_* */ 2543 __le32 filter_flags; /* RXON_FILTER_* */ 2544 2545 /* For active scans (set to all-0s for passive scans). 2546 * Does not include payload. Must specify Tx rate; no rate scaling. */ 2547 struct il_tx_cmd tx_cmd; 2548 2549 /* For directed active scans (set to all-0s otherwise) */ 2550 struct il_ssid_ie direct_scan[PROBE_OPTION_MAX]; 2551 2552 /* 2553 * Probe request frame, followed by channel list. 2554 * 2555 * Size of probe request frame is specified by byte count in tx_cmd. 2556 * Channel list follows immediately after probe request frame. 2557 * Number of channels in list is specified by channel_count. 2558 * Each channel in list is of type: 2559 * 2560 * struct il_scan_channel channels[0]; 2561 * 2562 * NOTE: Only one band of channels can be scanned per pass. You 2563 * must not mix 2.4GHz channels and 5.2GHz channels, and you must wait 2564 * for one scan to complete (i.e. receive N_SCAN_COMPLETE) 2565 * before requesting another scan. 2566 */ 2567 u8 data[]; 2568 } __packed; 2569 2570 /* Can abort will notify by complete notification with abort status. */ 2571 #define CAN_ABORT_STATUS cpu_to_le32(0x1) 2572 /* complete notification statuses */ 2573 #define ABORT_STATUS 0x2 2574 2575 /* 2576 * C_SCAN = 0x80 (response) 2577 */ 2578 struct il_scanreq_notification { 2579 __le32 status; /* 1: okay, 2: cannot fulfill request */ 2580 } __packed; 2581 2582 /* 2583 * N_SCAN_START = 0x82 (notification only, not a command) 2584 */ 2585 struct il_scanstart_notification { 2586 __le32 tsf_low; 2587 __le32 tsf_high; 2588 __le32 beacon_timer; 2589 u8 channel; 2590 u8 band; 2591 u8 reserved[2]; 2592 __le32 status; 2593 } __packed; 2594 2595 #define SCAN_OWNER_STATUS 0x1 2596 #define MEASURE_OWNER_STATUS 0x2 2597 2598 #define IL_PROBE_STATUS_OK 0 2599 #define IL_PROBE_STATUS_TX_FAILED BIT(0) 2600 /* error statuses combined with TX_FAILED */ 2601 #define IL_PROBE_STATUS_FAIL_TTL BIT(1) 2602 #define IL_PROBE_STATUS_FAIL_BT BIT(2) 2603 2604 #define NUMBER_OF_STATS 1 /* first __le32 is good CRC */ 2605 /* 2606 * N_SCAN_RESULTS = 0x83 (notification only, not a command) 2607 */ 2608 struct il_scanresults_notification { 2609 u8 channel; 2610 u8 band; 2611 u8 probe_status; 2612 u8 num_probe_not_sent; /* not enough time to send */ 2613 __le32 tsf_low; 2614 __le32 tsf_high; 2615 __le32 stats[NUMBER_OF_STATS]; 2616 } __packed; 2617 2618 /* 2619 * N_SCAN_COMPLETE = 0x84 (notification only, not a command) 2620 */ 2621 struct il_scancomplete_notification { 2622 u8 scanned_channels; 2623 u8 status; 2624 u8 last_channel; 2625 __le32 tsf_low; 2626 __le32 tsf_high; 2627 } __packed; 2628 2629 /****************************************************************************** 2630 * (9) 2631 * IBSS/AP Commands and Notifications: 2632 * 2633 *****************************************************************************/ 2634 2635 enum il_ibss_manager { 2636 IL_NOT_IBSS_MANAGER = 0, 2637 IL_IBSS_MANAGER = 1, 2638 }; 2639 2640 /* 2641 * N_BEACON = 0x90 (notification only, not a command) 2642 */ 2643 2644 struct il3945_beacon_notif { 2645 struct il3945_tx_resp beacon_notify_hdr; 2646 __le32 low_tsf; 2647 __le32 high_tsf; 2648 __le32 ibss_mgr_status; 2649 } __packed; 2650 2651 struct il4965_beacon_notif { 2652 struct il4965_tx_resp beacon_notify_hdr; 2653 __le32 low_tsf; 2654 __le32 high_tsf; 2655 __le32 ibss_mgr_status; 2656 } __packed; 2657 2658 /* 2659 * C_TX_BEACON= 0x91 (command, has simple generic response) 2660 */ 2661 2662 struct il3945_tx_beacon_cmd { 2663 struct il3945_tx_cmd tx; 2664 __le16 tim_idx; 2665 u8 tim_size; 2666 u8 reserved1; 2667 struct ieee80211_hdr frame[]; /* beacon frame */ 2668 } __packed; 2669 2670 struct il_tx_beacon_cmd { 2671 struct il_tx_cmd tx; 2672 __le16 tim_idx; 2673 u8 tim_size; 2674 u8 reserved1; 2675 struct ieee80211_hdr frame[]; /* beacon frame */ 2676 } __packed; 2677 2678 /****************************************************************************** 2679 * (10) 2680 * Statistics Commands and Notifications: 2681 * 2682 *****************************************************************************/ 2683 2684 #define IL_TEMP_CONVERT 260 2685 2686 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8 2687 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4 2688 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12 2689 2690 /* Used for passing to driver number of successes and failures per rate */ 2691 struct rate_histogram { 2692 union { 2693 __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS]; 2694 __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS]; 2695 __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS]; 2696 } success; 2697 union { 2698 __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS]; 2699 __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS]; 2700 __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS]; 2701 } failed; 2702 } __packed; 2703 2704 /* stats command response */ 2705 2706 struct iwl39_stats_rx_phy { 2707 __le32 ina_cnt; 2708 __le32 fina_cnt; 2709 __le32 plcp_err; 2710 __le32 crc32_err; 2711 __le32 overrun_err; 2712 __le32 early_overrun_err; 2713 __le32 crc32_good; 2714 __le32 false_alarm_cnt; 2715 __le32 fina_sync_err_cnt; 2716 __le32 sfd_timeout; 2717 __le32 fina_timeout; 2718 __le32 unresponded_rts; 2719 __le32 rxe_frame_limit_overrun; 2720 __le32 sent_ack_cnt; 2721 __le32 sent_cts_cnt; 2722 } __packed; 2723 2724 struct iwl39_stats_rx_non_phy { 2725 __le32 bogus_cts; /* CTS received when not expecting CTS */ 2726 __le32 bogus_ack; /* ACK received when not expecting ACK */ 2727 __le32 non_bssid_frames; /* number of frames with BSSID that 2728 * doesn't belong to the STA BSSID */ 2729 __le32 filtered_frames; /* count frames that were dumped in the 2730 * filtering process */ 2731 __le32 non_channel_beacons; /* beacons with our bss id but not on 2732 * our serving channel */ 2733 } __packed; 2734 2735 struct iwl39_stats_rx { 2736 struct iwl39_stats_rx_phy ofdm; 2737 struct iwl39_stats_rx_phy cck; 2738 struct iwl39_stats_rx_non_phy general; 2739 } __packed; 2740 2741 struct iwl39_stats_tx { 2742 __le32 preamble_cnt; 2743 __le32 rx_detected_cnt; 2744 __le32 bt_prio_defer_cnt; 2745 __le32 bt_prio_kill_cnt; 2746 __le32 few_bytes_cnt; 2747 __le32 cts_timeout; 2748 __le32 ack_timeout; 2749 __le32 expected_ack_cnt; 2750 __le32 actual_ack_cnt; 2751 } __packed; 2752 2753 struct stats_dbg { 2754 __le32 burst_check; 2755 __le32 burst_count; 2756 __le32 wait_for_silence_timeout_cnt; 2757 __le32 reserved[3]; 2758 } __packed; 2759 2760 struct iwl39_stats_div { 2761 __le32 tx_on_a; 2762 __le32 tx_on_b; 2763 __le32 exec_time; 2764 __le32 probe_time; 2765 } __packed; 2766 2767 struct iwl39_stats_general { 2768 __le32 temperature; 2769 struct stats_dbg dbg; 2770 __le32 sleep_time; 2771 __le32 slots_out; 2772 __le32 slots_idle; 2773 __le32 ttl_timestamp; 2774 struct iwl39_stats_div div; 2775 } __packed; 2776 2777 struct stats_rx_phy { 2778 __le32 ina_cnt; 2779 __le32 fina_cnt; 2780 __le32 plcp_err; 2781 __le32 crc32_err; 2782 __le32 overrun_err; 2783 __le32 early_overrun_err; 2784 __le32 crc32_good; 2785 __le32 false_alarm_cnt; 2786 __le32 fina_sync_err_cnt; 2787 __le32 sfd_timeout; 2788 __le32 fina_timeout; 2789 __le32 unresponded_rts; 2790 __le32 rxe_frame_limit_overrun; 2791 __le32 sent_ack_cnt; 2792 __le32 sent_cts_cnt; 2793 __le32 sent_ba_rsp_cnt; 2794 __le32 dsp_self_kill; 2795 __le32 mh_format_err; 2796 __le32 re_acq_main_rssi_sum; 2797 __le32 reserved3; 2798 } __packed; 2799 2800 struct stats_rx_ht_phy { 2801 __le32 plcp_err; 2802 __le32 overrun_err; 2803 __le32 early_overrun_err; 2804 __le32 crc32_good; 2805 __le32 crc32_err; 2806 __le32 mh_format_err; 2807 __le32 agg_crc32_good; 2808 __le32 agg_mpdu_cnt; 2809 __le32 agg_cnt; 2810 __le32 unsupport_mcs; 2811 } __packed; 2812 2813 #define INTERFERENCE_DATA_AVAILABLE cpu_to_le32(1) 2814 2815 struct stats_rx_non_phy { 2816 __le32 bogus_cts; /* CTS received when not expecting CTS */ 2817 __le32 bogus_ack; /* ACK received when not expecting ACK */ 2818 __le32 non_bssid_frames; /* number of frames with BSSID that 2819 * doesn't belong to the STA BSSID */ 2820 __le32 filtered_frames; /* count frames that were dumped in the 2821 * filtering process */ 2822 __le32 non_channel_beacons; /* beacons with our bss id but not on 2823 * our serving channel */ 2824 __le32 channel_beacons; /* beacons with our bss id and in our 2825 * serving channel */ 2826 __le32 num_missed_bcon; /* number of missed beacons */ 2827 __le32 adc_rx_saturation_time; /* count in 0.8us units the time the 2828 * ADC was in saturation */ 2829 __le32 ina_detection_search_time; /* total time (in 0.8us) searched 2830 * for INA */ 2831 __le32 beacon_silence_rssi_a; /* RSSI silence after beacon frame */ 2832 __le32 beacon_silence_rssi_b; /* RSSI silence after beacon frame */ 2833 __le32 beacon_silence_rssi_c; /* RSSI silence after beacon frame */ 2834 __le32 interference_data_flag; /* flag for interference data 2835 * availability. 1 when data is 2836 * available. */ 2837 __le32 channel_load; /* counts RX Enable time in uSec */ 2838 __le32 dsp_false_alarms; /* DSP false alarm (both OFDM 2839 * and CCK) counter */ 2840 __le32 beacon_rssi_a; 2841 __le32 beacon_rssi_b; 2842 __le32 beacon_rssi_c; 2843 __le32 beacon_energy_a; 2844 __le32 beacon_energy_b; 2845 __le32 beacon_energy_c; 2846 } __packed; 2847 2848 struct stats_rx { 2849 struct stats_rx_phy ofdm; 2850 struct stats_rx_phy cck; 2851 struct stats_rx_non_phy general; 2852 struct stats_rx_ht_phy ofdm_ht; 2853 } __packed; 2854 2855 /** 2856 * struct stats_tx_power - current tx power 2857 * 2858 * @ant_a: current tx power on chain a in 1/2 dB step 2859 * @ant_b: current tx power on chain b in 1/2 dB step 2860 * @ant_c: current tx power on chain c in 1/2 dB step 2861 */ 2862 struct stats_tx_power { 2863 u8 ant_a; 2864 u8 ant_b; 2865 u8 ant_c; 2866 u8 reserved; 2867 } __packed; 2868 2869 struct stats_tx_non_phy_agg { 2870 __le32 ba_timeout; 2871 __le32 ba_reschedule_frames; 2872 __le32 scd_query_agg_frame_cnt; 2873 __le32 scd_query_no_agg; 2874 __le32 scd_query_agg; 2875 __le32 scd_query_mismatch; 2876 __le32 frame_not_ready; 2877 __le32 underrun; 2878 __le32 bt_prio_kill; 2879 __le32 rx_ba_rsp_cnt; 2880 } __packed; 2881 2882 struct stats_tx { 2883 __le32 preamble_cnt; 2884 __le32 rx_detected_cnt; 2885 __le32 bt_prio_defer_cnt; 2886 __le32 bt_prio_kill_cnt; 2887 __le32 few_bytes_cnt; 2888 __le32 cts_timeout; 2889 __le32 ack_timeout; 2890 __le32 expected_ack_cnt; 2891 __le32 actual_ack_cnt; 2892 __le32 dump_msdu_cnt; 2893 __le32 burst_abort_next_frame_mismatch_cnt; 2894 __le32 burst_abort_missing_next_frame_cnt; 2895 __le32 cts_timeout_collision; 2896 __le32 ack_or_ba_timeout_collision; 2897 struct stats_tx_non_phy_agg agg; 2898 2899 __le32 reserved1; 2900 } __packed; 2901 2902 struct stats_div { 2903 __le32 tx_on_a; 2904 __le32 tx_on_b; 2905 __le32 exec_time; 2906 __le32 probe_time; 2907 __le32 reserved1; 2908 __le32 reserved2; 2909 } __packed; 2910 2911 struct stats_general_common { 2912 __le32 temperature; /* radio temperature */ 2913 struct stats_dbg dbg; 2914 __le32 sleep_time; 2915 __le32 slots_out; 2916 __le32 slots_idle; 2917 __le32 ttl_timestamp; 2918 struct stats_div div; 2919 __le32 rx_enable_counter; 2920 /* 2921 * num_of_sos_states: 2922 * count the number of times we have to re-tune 2923 * in order to get out of bad PHY status 2924 */ 2925 __le32 num_of_sos_states; 2926 } __packed; 2927 2928 struct stats_general { 2929 struct stats_general_common common; 2930 __le32 reserved2; 2931 __le32 reserved3; 2932 } __packed; 2933 2934 #define UCODE_STATS_CLEAR_MSK (0x1 << 0) 2935 #define UCODE_STATS_FREQUENCY_MSK (0x1 << 1) 2936 #define UCODE_STATS_NARROW_BAND_MSK (0x1 << 2) 2937 2938 /* 2939 * C_STATS = 0x9c, 2940 * all devices identical. 2941 * 2942 * This command triggers an immediate response containing uCode stats. 2943 * The response is in the same format as N_STATS 0x9d, below. 2944 * 2945 * If the CLEAR_STATS configuration flag is set, uCode will clear its 2946 * internal copy of the stats (counters) after issuing the response. 2947 * This flag does not affect N_STATSs after beacons (see below). 2948 * 2949 * If the DISABLE_NOTIF configuration flag is set, uCode will not issue 2950 * N_STATSs after received beacons (see below). This flag 2951 * does not affect the response to the C_STATS 0x9c itself. 2952 */ 2953 #define IL_STATS_CONF_CLEAR_STATS cpu_to_le32(0x1) /* see above */ 2954 #define IL_STATS_CONF_DISABLE_NOTIF cpu_to_le32(0x2) /* see above */ 2955 struct il_stats_cmd { 2956 __le32 configuration_flags; /* IL_STATS_CONF_* */ 2957 } __packed; 2958 2959 /* 2960 * N_STATS = 0x9d (notification only, not a command) 2961 * 2962 * By default, uCode issues this notification after receiving a beacon 2963 * while associated. To disable this behavior, set DISABLE_NOTIF flag in the 2964 * C_STATS 0x9c, above. 2965 * 2966 * Statistics counters continue to increment beacon after beacon, but are 2967 * cleared when changing channels or when driver issues C_STATS 2968 * 0x9c with CLEAR_STATS bit set (see above). 2969 * 2970 * uCode also issues this notification during scans. uCode clears stats 2971 * appropriately so that each notification contains stats for only the 2972 * one channel that has just been scanned. 2973 */ 2974 #define STATS_REPLY_FLG_BAND_24G_MSK cpu_to_le32(0x2) 2975 #define STATS_REPLY_FLG_HT40_MODE_MSK cpu_to_le32(0x8) 2976 2977 struct il3945_notif_stats { 2978 __le32 flag; 2979 struct iwl39_stats_rx rx; 2980 struct iwl39_stats_tx tx; 2981 struct iwl39_stats_general general; 2982 } __packed; 2983 2984 struct il_notif_stats { 2985 __le32 flag; 2986 struct stats_rx rx; 2987 struct stats_tx tx; 2988 struct stats_general general; 2989 } __packed; 2990 2991 /* 2992 * N_MISSED_BEACONS = 0xa2 (notification only, not a command) 2993 * 2994 * uCode send N_MISSED_BEACONS to driver when detect beacon missed 2995 * in regardless of how many missed beacons, which mean when driver receive the 2996 * notification, inside the command, it can find all the beacons information 2997 * which include number of total missed beacons, number of consecutive missed 2998 * beacons, number of beacons received and number of beacons expected to 2999 * receive. 3000 * 3001 * If uCode detected consecutive_missed_beacons > 5, it will reset the radio 3002 * in order to bring the radio/PHY back to working state; which has no relation 3003 * to when driver will perform sensitivity calibration. 3004 * 3005 * Driver should set it own missed_beacon_threshold to decide when to perform 3006 * sensitivity calibration based on number of consecutive missed beacons in 3007 * order to improve overall performance, especially in noisy environment. 3008 * 3009 */ 3010 3011 #define IL_MISSED_BEACON_THRESHOLD_MIN (1) 3012 #define IL_MISSED_BEACON_THRESHOLD_DEF (5) 3013 #define IL_MISSED_BEACON_THRESHOLD_MAX IL_MISSED_BEACON_THRESHOLD_DEF 3014 3015 struct il_missed_beacon_notif { 3016 __le32 consecutive_missed_beacons; 3017 __le32 total_missed_becons; 3018 __le32 num_expected_beacons; 3019 __le32 num_recvd_beacons; 3020 } __packed; 3021 3022 /****************************************************************************** 3023 * (11) 3024 * Rx Calibration Commands: 3025 * 3026 * With the uCode used for open source drivers, most Tx calibration (except 3027 * for Tx Power) and most Rx calibration is done by uCode during the 3028 * "initialize" phase of uCode boot. Driver must calibrate only: 3029 * 3030 * 1) Tx power (depends on temperature), described elsewhere 3031 * 2) Receiver gain balance (optimize MIMO, and detect disconnected antennas) 3032 * 3) Receiver sensitivity (to optimize signal detection) 3033 * 3034 *****************************************************************************/ 3035 3036 /** 3037 * C_SENSITIVITY = 0xa8 (command, has simple generic response) 3038 * 3039 * This command sets up the Rx signal detector for a sensitivity level that 3040 * is high enough to lock onto all signals within the associated network, 3041 * but low enough to ignore signals that are below a certain threshold, so as 3042 * not to have too many "false alarms". False alarms are signals that the 3043 * Rx DSP tries to lock onto, but then discards after determining that they 3044 * are noise. 3045 * 3046 * The optimum number of false alarms is between 5 and 50 per 200 TUs 3047 * (200 * 1024 uSecs, i.e. 204.8 milliseconds) of actual Rx time (i.e. 3048 * time listening, not transmitting). Driver must adjust sensitivity so that 3049 * the ratio of actual false alarms to actual Rx time falls within this range. 3050 * 3051 * While associated, uCode delivers N_STATSs after each 3052 * received beacon. These provide information to the driver to analyze the 3053 * sensitivity. Don't analyze stats that come in from scanning, or any 3054 * other non-associated-network source. Pertinent stats include: 3055 * 3056 * From "general" stats (struct stats_rx_non_phy): 3057 * 3058 * (beacon_energy_[abc] & 0x0FF00) >> 8 (unsigned, higher value is lower level) 3059 * Measure of energy of desired signal. Used for establishing a level 3060 * below which the device does not detect signals. 3061 * 3062 * (beacon_silence_rssi_[abc] & 0x0FF00) >> 8 (unsigned, units in dB) 3063 * Measure of background noise in silent period after beacon. 3064 * 3065 * channel_load 3066 * uSecs of actual Rx time during beacon period (varies according to 3067 * how much time was spent transmitting). 3068 * 3069 * From "cck" and "ofdm" stats (struct stats_rx_phy), separately: 3070 * 3071 * false_alarm_cnt 3072 * Signal locks abandoned early (before phy-level header). 3073 * 3074 * plcp_err 3075 * Signal locks abandoned late (during phy-level header). 3076 * 3077 * NOTE: Both false_alarm_cnt and plcp_err increment monotonically from 3078 * beacon to beacon, i.e. each value is an accumulation of all errors 3079 * before and including the latest beacon. Values will wrap around to 0 3080 * after counting up to 2^32 - 1. Driver must differentiate vs. 3081 * previous beacon's values to determine # false alarms in the current 3082 * beacon period. 3083 * 3084 * Total number of false alarms = false_alarms + plcp_errs 3085 * 3086 * For OFDM, adjust the following table entries in struct il_sensitivity_cmd 3087 * (notice that the start points for OFDM are at or close to settings for 3088 * maximum sensitivity): 3089 * 3090 * START / MIN / MAX 3091 * HD_AUTO_CORR32_X1_TH_ADD_MIN_IDX 90 / 85 / 120 3092 * HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_IDX 170 / 170 / 210 3093 * HD_AUTO_CORR32_X4_TH_ADD_MIN_IDX 105 / 105 / 140 3094 * HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_IDX 220 / 220 / 270 3095 * 3096 * If actual rate of OFDM false alarms (+ plcp_errors) is too high 3097 * (greater than 50 for each 204.8 msecs listening), reduce sensitivity 3098 * by *adding* 1 to all 4 of the table entries above, up to the max for 3099 * each entry. Conversely, if false alarm rate is too low (less than 5 3100 * for each 204.8 msecs listening), *subtract* 1 from each entry to 3101 * increase sensitivity. 3102 * 3103 * For CCK sensitivity, keep track of the following: 3104 * 3105 * 1). 20-beacon history of maximum background noise, indicated by 3106 * (beacon_silence_rssi_[abc] & 0x0FF00), units in dB, across the 3107 * 3 receivers. For any given beacon, the "silence reference" is 3108 * the maximum of last 60 samples (20 beacons * 3 receivers). 3109 * 3110 * 2). 10-beacon history of strongest signal level, as indicated 3111 * by (beacon_energy_[abc] & 0x0FF00) >> 8, across the 3 receivers, 3112 * i.e. the strength of the signal through the best receiver at the 3113 * moment. These measurements are "upside down", with lower values 3114 * for stronger signals, so max energy will be *minimum* value. 3115 * 3116 * Then for any given beacon, the driver must determine the *weakest* 3117 * of the strongest signals; this is the minimum level that needs to be 3118 * successfully detected, when using the best receiver at the moment. 3119 * "Max cck energy" is the maximum (higher value means lower energy!) 3120 * of the last 10 minima. Once this is determined, driver must add 3121 * a little margin by adding "6" to it. 3122 * 3123 * 3). Number of consecutive beacon periods with too few false alarms. 3124 * Reset this to 0 at the first beacon period that falls within the 3125 * "good" range (5 to 50 false alarms per 204.8 milliseconds rx). 3126 * 3127 * Then, adjust the following CCK table entries in struct il_sensitivity_cmd 3128 * (notice that the start points for CCK are at maximum sensitivity): 3129 * 3130 * START / MIN / MAX 3131 * HD_AUTO_CORR40_X4_TH_ADD_MIN_IDX 125 / 125 / 200 3132 * HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_IDX 200 / 200 / 400 3133 * HD_MIN_ENERGY_CCK_DET_IDX 100 / 0 / 100 3134 * 3135 * If actual rate of CCK false alarms (+ plcp_errors) is too high 3136 * (greater than 50 for each 204.8 msecs listening), method for reducing 3137 * sensitivity is: 3138 * 3139 * 1) *Add* 3 to value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_IDX, 3140 * up to max 400. 3141 * 3142 * 2) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_IDX is < 160, 3143 * sensitivity has been reduced a significant amount; bring it up to 3144 * a moderate 161. Otherwise, *add* 3, up to max 200. 3145 * 3146 * 3) a) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_IDX is > 160, 3147 * sensitivity has been reduced only a moderate or small amount; 3148 * *subtract* 2 from value in HD_MIN_ENERGY_CCK_DET_IDX, 3149 * down to min 0. Otherwise (if gain has been significantly reduced), 3150 * don't change the HD_MIN_ENERGY_CCK_DET_IDX value. 3151 * 3152 * b) Save a snapshot of the "silence reference". 3153 * 3154 * If actual rate of CCK false alarms (+ plcp_errors) is too low 3155 * (less than 5 for each 204.8 msecs listening), method for increasing 3156 * sensitivity is used only if: 3157 * 3158 * 1a) Previous beacon did not have too many false alarms 3159 * 1b) AND difference between previous "silence reference" and current 3160 * "silence reference" (prev - current) is 2 or more, 3161 * OR 2) 100 or more consecutive beacon periods have had rate of 3162 * less than 5 false alarms per 204.8 milliseconds rx time. 3163 * 3164 * Method for increasing sensitivity: 3165 * 3166 * 1) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_IDX, 3167 * down to min 125. 3168 * 3169 * 2) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_IDX, 3170 * down to min 200. 3171 * 3172 * 3) *Add* 2 to value in HD_MIN_ENERGY_CCK_DET_IDX, up to max 100. 3173 * 3174 * If actual rate of CCK false alarms (+ plcp_errors) is within good range 3175 * (between 5 and 50 for each 204.8 msecs listening): 3176 * 3177 * 1) Save a snapshot of the silence reference. 3178 * 3179 * 2) If previous beacon had too many CCK false alarms (+ plcp_errors), 3180 * give some extra margin to energy threshold by *subtracting* 8 3181 * from value in HD_MIN_ENERGY_CCK_DET_IDX. 3182 * 3183 * For all cases (too few, too many, good range), make sure that the CCK 3184 * detection threshold (energy) is below the energy level for robust 3185 * detection over the past 10 beacon periods, the "Max cck energy". 3186 * Lower values mean higher energy; this means making sure that the value 3187 * in HD_MIN_ENERGY_CCK_DET_IDX is at or *above* "Max cck energy". 3188 * 3189 */ 3190 3191 /* 3192 * Table entries in C_SENSITIVITY (struct il_sensitivity_cmd) 3193 */ 3194 #define HD_TBL_SIZE (11) /* number of entries */ 3195 #define HD_MIN_ENERGY_CCK_DET_IDX (0) /* table idxes */ 3196 #define HD_MIN_ENERGY_OFDM_DET_IDX (1) 3197 #define HD_AUTO_CORR32_X1_TH_ADD_MIN_IDX (2) 3198 #define HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_IDX (3) 3199 #define HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_IDX (4) 3200 #define HD_AUTO_CORR32_X4_TH_ADD_MIN_IDX (5) 3201 #define HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_IDX (6) 3202 #define HD_BARKER_CORR_TH_ADD_MIN_IDX (7) 3203 #define HD_BARKER_CORR_TH_ADD_MIN_MRC_IDX (8) 3204 #define HD_AUTO_CORR40_X4_TH_ADD_MIN_IDX (9) 3205 #define HD_OFDM_ENERGY_TH_IN_IDX (10) 3206 3207 /* Control field in struct il_sensitivity_cmd */ 3208 #define C_SENSITIVITY_CONTROL_DEFAULT_TBL cpu_to_le16(0) 3209 #define C_SENSITIVITY_CONTROL_WORK_TBL cpu_to_le16(1) 3210 3211 /** 3212 * struct il_sensitivity_cmd 3213 * @control: (1) updates working table, (0) updates default table 3214 * @table: energy threshold values, use HD_* as idx into table 3215 * 3216 * Always use "1" in "control" to update uCode's working table and DSP. 3217 */ 3218 struct il_sensitivity_cmd { 3219 __le16 control; /* always use "1" */ 3220 __le16 table[HD_TBL_SIZE]; /* use HD_* as idx */ 3221 } __packed; 3222 3223 /** 3224 * C_PHY_CALIBRATION = 0xb0 (command, has simple generic response) 3225 * 3226 * This command sets the relative gains of 4965 device's 3 radio receiver chains. 3227 * 3228 * After the first association, driver should accumulate signal and noise 3229 * stats from the N_STATSs that follow the first 20 3230 * beacons from the associated network (don't collect stats that come 3231 * in from scanning, or any other non-network source). 3232 * 3233 * DISCONNECTED ANTENNA: 3234 * 3235 * Driver should determine which antennas are actually connected, by comparing 3236 * average beacon signal levels for the 3 Rx chains. Accumulate (add) the 3237 * following values over 20 beacons, one accumulator for each of the chains 3238 * a/b/c, from struct stats_rx_non_phy: 3239 * 3240 * beacon_rssi_[abc] & 0x0FF (unsigned, units in dB) 3241 * 3242 * Find the strongest signal from among a/b/c. Compare the other two to the 3243 * strongest. If any signal is more than 15 dB (times 20, unless you 3244 * divide the accumulated values by 20) below the strongest, the driver 3245 * considers that antenna to be disconnected, and should not try to use that 3246 * antenna/chain for Rx or Tx. If both A and B seem to be disconnected, 3247 * driver should declare the stronger one as connected, and attempt to use it 3248 * (A and B are the only 2 Tx chains!). 3249 * 3250 * 3251 * RX BALANCE: 3252 * 3253 * Driver should balance the 3 receivers (but just the ones that are connected 3254 * to antennas, see above) for gain, by comparing the average signal levels 3255 * detected during the silence after each beacon (background noise). 3256 * Accumulate (add) the following values over 20 beacons, one accumulator for 3257 * each of the chains a/b/c, from struct stats_rx_non_phy: 3258 * 3259 * beacon_silence_rssi_[abc] & 0x0FF (unsigned, units in dB) 3260 * 3261 * Find the weakest background noise level from among a/b/c. This Rx chain 3262 * will be the reference, with 0 gain adjustment. Attenuate other channels by 3263 * finding noise difference: 3264 * 3265 * (accum_noise[i] - accum_noise[reference]) / 30 3266 * 3267 * The "30" adjusts the dB in the 20 accumulated samples to units of 1.5 dB. 3268 * For use in diff_gain_[abc] fields of struct il_calibration_cmd, the 3269 * driver should limit the difference results to a range of 0-3 (0-4.5 dB), 3270 * and set bit 2 to indicate "reduce gain". The value for the reference 3271 * (weakest) chain should be "0". 3272 * 3273 * diff_gain_[abc] bit fields: 3274 * 2: (1) reduce gain, (0) increase gain 3275 * 1-0: amount of gain, units of 1.5 dB 3276 */ 3277 3278 /* Phy calibration command for series */ 3279 /* The default calibrate table size if not specified by firmware */ 3280 #define IL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE 18 3281 enum { 3282 IL_PHY_CALIBRATE_DIFF_GAIN_CMD = 7, 3283 IL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE = 19, 3284 }; 3285 3286 #define IL_MAX_PHY_CALIBRATE_TBL_SIZE (253) 3287 3288 struct il_calib_hdr { 3289 u8 op_code; 3290 u8 first_group; 3291 u8 groups_num; 3292 u8 data_valid; 3293 } __packed; 3294 3295 /* IL_PHY_CALIBRATE_DIFF_GAIN_CMD (7) */ 3296 struct il_calib_diff_gain_cmd { 3297 struct il_calib_hdr hdr; 3298 s8 diff_gain_a; /* see above */ 3299 s8 diff_gain_b; 3300 s8 diff_gain_c; 3301 u8 reserved1; 3302 } __packed; 3303 3304 /****************************************************************************** 3305 * (12) 3306 * Miscellaneous Commands: 3307 * 3308 *****************************************************************************/ 3309 3310 /* 3311 * LEDs Command & Response 3312 * C_LEDS = 0x48 (command, has simple generic response) 3313 * 3314 * For each of 3 possible LEDs (Activity/Link/Tech, selected by "id" field), 3315 * this command turns it on or off, or sets up a periodic blinking cycle. 3316 */ 3317 struct il_led_cmd { 3318 __le32 interval; /* "interval" in uSec */ 3319 u8 id; /* 1: Activity, 2: Link, 3: Tech */ 3320 u8 off; /* # intervals off while blinking; 3321 * "0", with >0 "on" value, turns LED on */ 3322 u8 on; /* # intervals on while blinking; 3323 * "0", regardless of "off", turns LED off */ 3324 u8 reserved; 3325 } __packed; 3326 3327 /****************************************************************************** 3328 * (13) 3329 * Union of all expected notifications/responses: 3330 * 3331 *****************************************************************************/ 3332 3333 #define IL_RX_FRAME_SIZE_MSK 0x00003fff 3334 3335 struct il_rx_pkt { 3336 /* 3337 * The first 4 bytes of the RX frame header contain both the RX frame 3338 * size and some flags. 3339 * Bit fields: 3340 * 31: flag flush RB request 3341 * 30: flag ignore TC (terminal counter) request 3342 * 29: flag fast IRQ request 3343 * 28-14: Reserved 3344 * 13-00: RX frame size 3345 */ 3346 __le32 len_n_flags; 3347 struct il_cmd_header hdr; 3348 union { 3349 struct il3945_rx_frame rx_frame; 3350 struct il3945_tx_resp tx_resp; 3351 struct il3945_beacon_notif beacon_status; 3352 3353 struct il_alive_resp alive_frame; 3354 struct il_spectrum_notification spectrum_notif; 3355 struct il_csa_notification csa_notif; 3356 struct il_error_resp err_resp; 3357 struct il_card_state_notif card_state_notif; 3358 struct il_add_sta_resp add_sta; 3359 struct il_rem_sta_resp rem_sta; 3360 struct il_sleep_notification sleep_notif; 3361 struct il_spectrum_resp spectrum; 3362 struct il_notif_stats stats; 3363 struct il_compressed_ba_resp compressed_ba; 3364 struct il_missed_beacon_notif missed_beacon; 3365 __le32 status; 3366 u8 raw[0]; 3367 } u; 3368 } __packed; 3369 3370 #endif /* __il_commands_h__ */ 3371