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 * Please use this file (iwl-commands.h) only for uCode API definitions. 65 * Please use iwl-xxxx-hw.h for hardware-related definitions. 66 * Please use iwl-dev.h for driver implementation definitions. 67 */ 68 69#ifndef __iwl_legacy_commands_h__ 70#define __iwl_legacy_commands_h__ 71 72struct iwl_priv; 73 74/* uCode version contains 4 values: Major/Minor/API/Serial */ 75#define IWL_UCODE_MAJOR(ver) (((ver) & 0xFF000000) >> 24) 76#define IWL_UCODE_MINOR(ver) (((ver) & 0x00FF0000) >> 16) 77#define IWL_UCODE_API(ver) (((ver) & 0x0000FF00) >> 8) 78#define IWL_UCODE_SERIAL(ver) ((ver) & 0x000000FF) 79 80 81/* Tx rates */ 82#define IWL_CCK_RATES 4 83#define IWL_OFDM_RATES 8 84#define IWL_MAX_RATES (IWL_CCK_RATES + IWL_OFDM_RATES) 85 86enum { 87 REPLY_ALIVE = 0x1, 88 REPLY_ERROR = 0x2, 89 90 /* RXON and QOS commands */ 91 REPLY_RXON = 0x10, 92 REPLY_RXON_ASSOC = 0x11, 93 REPLY_QOS_PARAM = 0x13, 94 REPLY_RXON_TIMING = 0x14, 95 96 /* Multi-Station support */ 97 REPLY_ADD_STA = 0x18, 98 REPLY_REMOVE_STA = 0x19, 99 100 /* Security */ 101 REPLY_WEPKEY = 0x20, 102 103 /* RX, TX, LEDs */ 104 REPLY_3945_RX = 0x1b, /* 3945 only */ 105 REPLY_TX = 0x1c, 106 REPLY_RATE_SCALE = 0x47, /* 3945 only */ 107 REPLY_LEDS_CMD = 0x48, 108 REPLY_TX_LINK_QUALITY_CMD = 0x4e, /* for 4965 and up */ 109 110 /* 802.11h related */ 111 REPLY_CHANNEL_SWITCH = 0x72, 112 CHANNEL_SWITCH_NOTIFICATION = 0x73, 113 REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74, 114 SPECTRUM_MEASURE_NOTIFICATION = 0x75, 115 116 /* Power Management */ 117 POWER_TABLE_CMD = 0x77, 118 PM_SLEEP_NOTIFICATION = 0x7A, 119 PM_DEBUG_STATISTIC_NOTIFIC = 0x7B, 120 121 /* Scan commands and notifications */ 122 REPLY_SCAN_CMD = 0x80, 123 REPLY_SCAN_ABORT_CMD = 0x81, 124 SCAN_START_NOTIFICATION = 0x82, 125 SCAN_RESULTS_NOTIFICATION = 0x83, 126 SCAN_COMPLETE_NOTIFICATION = 0x84, 127 128 /* IBSS/AP commands */ 129 BEACON_NOTIFICATION = 0x90, 130 REPLY_TX_BEACON = 0x91, 131 132 /* Miscellaneous commands */ 133 REPLY_TX_PWR_TABLE_CMD = 0x97, 134 135 /* Bluetooth device coexistence config command */ 136 REPLY_BT_CONFIG = 0x9b, 137 138 /* Statistics */ 139 REPLY_STATISTICS_CMD = 0x9c, 140 STATISTICS_NOTIFICATION = 0x9d, 141 142 /* RF-KILL commands and notifications */ 143 CARD_STATE_NOTIFICATION = 0xa1, 144 145 /* Missed beacons notification */ 146 MISSED_BEACONS_NOTIFICATION = 0xa2, 147 148 REPLY_CT_KILL_CONFIG_CMD = 0xa4, 149 SENSITIVITY_CMD = 0xa8, 150 REPLY_PHY_CALIBRATION_CMD = 0xb0, 151 REPLY_RX_PHY_CMD = 0xc0, 152 REPLY_RX_MPDU_CMD = 0xc1, 153 REPLY_RX = 0xc3, 154 REPLY_COMPRESSED_BA = 0xc5, 155 156 REPLY_MAX = 0xff 157}; 158 159/****************************************************************************** 160 * (0) 161 * Commonly used structures and definitions: 162 * Command header, rate_n_flags, txpower 163 * 164 *****************************************************************************/ 165 166/* iwl_cmd_header flags value */ 167#define IWL_CMD_FAILED_MSK 0x40 168 169#define SEQ_TO_QUEUE(s) (((s) >> 8) & 0x1f) 170#define QUEUE_TO_SEQ(q) (((q) & 0x1f) << 8) 171#define SEQ_TO_INDEX(s) ((s) & 0xff) 172#define INDEX_TO_SEQ(i) ((i) & 0xff) 173#define SEQ_HUGE_FRAME cpu_to_le16(0x4000) 174#define SEQ_RX_FRAME cpu_to_le16(0x8000) 175 176/** 177 * struct iwl_cmd_header 178 * 179 * This header format appears in the beginning of each command sent from the 180 * driver, and each response/notification received from uCode. 181 */ 182struct iwl_cmd_header { 183 u8 cmd; /* Command ID: REPLY_RXON, etc. */ 184 u8 flags; /* 0:5 reserved, 6 abort, 7 internal */ 185 /* 186 * The driver sets up the sequence number to values of its choosing. 187 * uCode does not use this value, but passes it back to the driver 188 * when sending the response to each driver-originated command, so 189 * the driver can match the response to the command. Since the values 190 * don't get used by uCode, the driver may set up an arbitrary format. 191 * 192 * There is one exception: uCode sets bit 15 when it originates 193 * the response/notification, i.e. when the response/notification 194 * is not a direct response to a command sent by the driver. For 195 * example, uCode issues REPLY_3945_RX when it sends a received frame 196 * to the driver; it is not a direct response to any driver command. 197 * 198 * The Linux driver uses the following format: 199 * 200 * 0:7 tfd index - position within TX queue 201 * 8:12 TX queue id 202 * 13 reserved 203 * 14 huge - driver sets this to indicate command is in the 204 * 'huge' storage at the end of the command buffers 205 * 15 unsolicited RX or uCode-originated notification 206 */ 207 __le16 sequence; 208 209 /* command or response/notification data follows immediately */ 210 u8 data[0]; 211} __packed; 212 213 214/** 215 * struct iwl3945_tx_power 216 * 217 * Used in REPLY_TX_PWR_TABLE_CMD, REPLY_SCAN_CMD, REPLY_CHANNEL_SWITCH 218 * 219 * Each entry contains two values: 220 * 1) DSP gain (or sometimes called DSP attenuation). This is a fine-grained 221 * linear value that multiplies the output of the digital signal processor, 222 * before being sent to the analog radio. 223 * 2) Radio gain. This sets the analog gain of the radio Tx path. 224 * It is a coarser setting, and behaves in a logarithmic (dB) fashion. 225 * 226 * Driver obtains values from struct iwl3945_tx_power power_gain_table[][]. 227 */ 228struct iwl3945_tx_power { 229 u8 tx_gain; /* gain for analog radio */ 230 u8 dsp_atten; /* gain for DSP */ 231} __packed; 232 233/** 234 * struct iwl3945_power_per_rate 235 * 236 * Used in REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH 237 */ 238struct iwl3945_power_per_rate { 239 u8 rate; /* plcp */ 240 struct iwl3945_tx_power tpc; 241 u8 reserved; 242} __packed; 243 244/** 245 * iwl4965 rate_n_flags bit fields 246 * 247 * rate_n_flags format is used in following iwl4965 commands: 248 * REPLY_RX (response only) 249 * REPLY_RX_MPDU (response only) 250 * REPLY_TX (both command and response) 251 * REPLY_TX_LINK_QUALITY_CMD 252 * 253 * High-throughput (HT) rate format for bits 7:0 (bit 8 must be "1"): 254 * 2-0: 0) 6 Mbps 255 * 1) 12 Mbps 256 * 2) 18 Mbps 257 * 3) 24 Mbps 258 * 4) 36 Mbps 259 * 5) 48 Mbps 260 * 6) 54 Mbps 261 * 7) 60 Mbps 262 * 263 * 4-3: 0) Single stream (SISO) 264 * 1) Dual stream (MIMO) 265 * 2) Triple stream (MIMO) 266 * 267 * 5: Value of 0x20 in bits 7:0 indicates 6 Mbps HT40 duplicate data 268 * 269 * Legacy OFDM rate format for bits 7:0 (bit 8 must be "0", bit 9 "0"): 270 * 3-0: 0xD) 6 Mbps 271 * 0xF) 9 Mbps 272 * 0x5) 12 Mbps 273 * 0x7) 18 Mbps 274 * 0x9) 24 Mbps 275 * 0xB) 36 Mbps 276 * 0x1) 48 Mbps 277 * 0x3) 54 Mbps 278 * 279 * Legacy CCK rate format for bits 7:0 (bit 8 must be "0", bit 9 "1"): 280 * 6-0: 10) 1 Mbps 281 * 20) 2 Mbps 282 * 55) 5.5 Mbps 283 * 110) 11 Mbps 284 */ 285#define RATE_MCS_CODE_MSK 0x7 286#define RATE_MCS_SPATIAL_POS 3 287#define RATE_MCS_SPATIAL_MSK 0x18 288#define RATE_MCS_HT_DUP_POS 5 289#define RATE_MCS_HT_DUP_MSK 0x20 290 291/* Bit 8: (1) HT format, (0) legacy format in bits 7:0 */ 292#define RATE_MCS_FLAGS_POS 8 293#define RATE_MCS_HT_POS 8 294#define RATE_MCS_HT_MSK 0x100 295 296/* Bit 9: (1) CCK, (0) OFDM. HT (bit 8) must be "0" for this bit to be valid */ 297#define RATE_MCS_CCK_POS 9 298#define RATE_MCS_CCK_MSK 0x200 299 300/* Bit 10: (1) Use Green Field preamble */ 301#define RATE_MCS_GF_POS 10 302#define RATE_MCS_GF_MSK 0x400 303 304/* Bit 11: (1) Use 40Mhz HT40 chnl width, (0) use 20 MHz legacy chnl width */ 305#define RATE_MCS_HT40_POS 11 306#define RATE_MCS_HT40_MSK 0x800 307 308/* Bit 12: (1) Duplicate data on both 20MHz chnls. HT40 (bit 11) must be set. */ 309#define RATE_MCS_DUP_POS 12 310#define RATE_MCS_DUP_MSK 0x1000 311 312/* Bit 13: (1) Short guard interval (0.4 usec), (0) normal GI (0.8 usec) */ 313#define RATE_MCS_SGI_POS 13 314#define RATE_MCS_SGI_MSK 0x2000 315 316/** 317 * rate_n_flags Tx antenna masks 318 * 4965 has 2 transmitters 319 * bit14:16 320 */ 321#define RATE_MCS_ANT_POS 14 322#define RATE_MCS_ANT_A_MSK 0x04000 323#define RATE_MCS_ANT_B_MSK 0x08000 324#define RATE_MCS_ANT_C_MSK 0x10000 325#define RATE_MCS_ANT_AB_MSK (RATE_MCS_ANT_A_MSK | RATE_MCS_ANT_B_MSK) 326#define RATE_MCS_ANT_ABC_MSK (RATE_MCS_ANT_AB_MSK | RATE_MCS_ANT_C_MSK) 327#define RATE_ANT_NUM 3 328 329#define POWER_TABLE_NUM_ENTRIES 33 330#define POWER_TABLE_NUM_HT_OFDM_ENTRIES 32 331#define POWER_TABLE_CCK_ENTRY 32 332 333#define IWL_PWR_NUM_HT_OFDM_ENTRIES 24 334#define IWL_PWR_CCK_ENTRIES 2 335 336/** 337 * union iwl4965_tx_power_dual_stream 338 * 339 * Host format used for REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH 340 * Use __le32 version (struct tx_power_dual_stream) when building command. 341 * 342 * Driver provides radio gain and DSP attenuation settings to device in pairs, 343 * one value for each transmitter chain. The first value is for transmitter A, 344 * second for transmitter B. 345 * 346 * For SISO bit rates, both values in a pair should be identical. 347 * For MIMO rates, one value may be different from the other, 348 * in order to balance the Tx output between the two transmitters. 349 * 350 * See more details in doc for TXPOWER in iwl-4965-hw.h. 351 */ 352union iwl4965_tx_power_dual_stream { 353 struct { 354 u8 radio_tx_gain[2]; 355 u8 dsp_predis_atten[2]; 356 } s; 357 u32 dw; 358}; 359 360/** 361 * struct tx_power_dual_stream 362 * 363 * Table entries in REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH 364 * 365 * Same format as iwl_tx_power_dual_stream, but __le32 366 */ 367struct tx_power_dual_stream { 368 __le32 dw; 369} __packed; 370 371/** 372 * struct iwl4965_tx_power_db 373 * 374 * Entire table within REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH 375 */ 376struct iwl4965_tx_power_db { 377 struct tx_power_dual_stream power_tbl[POWER_TABLE_NUM_ENTRIES]; 378} __packed; 379 380/****************************************************************************** 381 * (0a) 382 * Alive and Error Commands & Responses: 383 * 384 *****************************************************************************/ 385 386#define UCODE_VALID_OK cpu_to_le32(0x1) 387#define INITIALIZE_SUBTYPE (9) 388 389/* 390 * ("Initialize") REPLY_ALIVE = 0x1 (response only, not a command) 391 * 392 * uCode issues this "initialize alive" notification once the initialization 393 * uCode image has completed its work, and is ready to load the runtime image. 394 * This is the *first* "alive" notification that the driver will receive after 395 * rebooting uCode; the "initialize" alive is indicated by subtype field == 9. 396 * 397 * See comments documenting "BSM" (bootstrap state machine). 398 * 399 * For 4965, this notification contains important calibration data for 400 * calculating txpower settings: 401 * 402 * 1) Power supply voltage indication. The voltage sensor outputs higher 403 * values for lower voltage, and vice verse. 404 * 405 * 2) Temperature measurement parameters, for each of two channel widths 406 * (20 MHz and 40 MHz) supported by the radios. Temperature sensing 407 * is done via one of the receiver chains, and channel width influences 408 * the results. 409 * 410 * 3) Tx gain compensation to balance 4965's 2 Tx chains for MIMO operation, 411 * for each of 5 frequency ranges. 412 */ 413struct iwl_init_alive_resp { 414 u8 ucode_minor; 415 u8 ucode_major; 416 __le16 reserved1; 417 u8 sw_rev[8]; 418 u8 ver_type; 419 u8 ver_subtype; /* "9" for initialize alive */ 420 __le16 reserved2; 421 __le32 log_event_table_ptr; 422 __le32 error_event_table_ptr; 423 __le32 timestamp; 424 __le32 is_valid; 425 426 /* calibration values from "initialize" uCode */ 427 __le32 voltage; /* signed, higher value is lower voltage */ 428 __le32 therm_r1[2]; /* signed, 1st for normal, 2nd for HT40 */ 429 __le32 therm_r2[2]; /* signed */ 430 __le32 therm_r3[2]; /* signed */ 431 __le32 therm_r4[2]; /* signed */ 432 __le32 tx_atten[5][2]; /* signed MIMO gain comp, 5 freq groups, 433 * 2 Tx chains */ 434} __packed; 435 436 437/** 438 * REPLY_ALIVE = 0x1 (response only, not a command) 439 * 440 * uCode issues this "alive" notification once the runtime image is ready 441 * to receive commands from the driver. This is the *second* "alive" 442 * notification that the driver will receive after rebooting uCode; 443 * this "alive" is indicated by subtype field != 9. 444 * 445 * See comments documenting "BSM" (bootstrap state machine). 446 * 447 * This response includes two pointers to structures within the device's 448 * data SRAM (access via HBUS_TARG_MEM_* regs) that are useful for debugging: 449 * 450 * 1) log_event_table_ptr indicates base of the event log. This traces 451 * a 256-entry history of uCode execution within a circular buffer. 452 * Its header format is: 453 * 454 * __le32 log_size; log capacity (in number of entries) 455 * __le32 type; (1) timestamp with each entry, (0) no timestamp 456 * __le32 wraps; # times uCode has wrapped to top of circular buffer 457 * __le32 write_index; next circular buffer entry that uCode would fill 458 * 459 * The header is followed by the circular buffer of log entries. Entries 460 * with timestamps have the following format: 461 * 462 * __le32 event_id; range 0 - 1500 463 * __le32 timestamp; low 32 bits of TSF (of network, if associated) 464 * __le32 data; event_id-specific data value 465 * 466 * Entries without timestamps contain only event_id and data. 467 * 468 * 469 * 2) error_event_table_ptr indicates base of the error log. This contains 470 * information about any uCode error that occurs. For 4965, the format 471 * of the error log is: 472 * 473 * __le32 valid; (nonzero) valid, (0) log is empty 474 * __le32 error_id; type of error 475 * __le32 pc; program counter 476 * __le32 blink1; branch link 477 * __le32 blink2; branch link 478 * __le32 ilink1; interrupt link 479 * __le32 ilink2; interrupt link 480 * __le32 data1; error-specific data 481 * __le32 data2; error-specific data 482 * __le32 line; source code line of error 483 * __le32 bcon_time; beacon timer 484 * __le32 tsf_low; network timestamp function timer 485 * __le32 tsf_hi; network timestamp function timer 486 * __le32 gp1; GP1 timer register 487 * __le32 gp2; GP2 timer register 488 * __le32 gp3; GP3 timer register 489 * __le32 ucode_ver; uCode version 490 * __le32 hw_ver; HW Silicon version 491 * __le32 brd_ver; HW board version 492 * __le32 log_pc; log program counter 493 * __le32 frame_ptr; frame pointer 494 * __le32 stack_ptr; stack pointer 495 * __le32 hcmd; last host command 496 * __le32 isr0; isr status register LMPM_NIC_ISR0: rxtx_flag 497 * __le32 isr1; isr status register LMPM_NIC_ISR1: host_flag 498 * __le32 isr2; isr status register LMPM_NIC_ISR2: enc_flag 499 * __le32 isr3; isr status register LMPM_NIC_ISR3: time_flag 500 * __le32 isr4; isr status register LMPM_NIC_ISR4: wico interrupt 501 * __le32 isr_pref; isr status register LMPM_NIC_PREF_STAT 502 * __le32 wait_event; wait event() caller address 503 * __le32 l2p_control; L2pControlField 504 * __le32 l2p_duration; L2pDurationField 505 * __le32 l2p_mhvalid; L2pMhValidBits 506 * __le32 l2p_addr_match; L2pAddrMatchStat 507 * __le32 lmpm_pmg_sel; indicate which clocks are turned on (LMPM_PMG_SEL) 508 * __le32 u_timestamp; indicate when the date and time of the compilation 509 * __le32 reserved; 510 * 511 * The Linux driver can print both logs to the system log when a uCode error 512 * occurs. 513 */ 514struct iwl_alive_resp { 515 u8 ucode_minor; 516 u8 ucode_major; 517 __le16 reserved1; 518 u8 sw_rev[8]; 519 u8 ver_type; 520 u8 ver_subtype; /* not "9" for runtime alive */ 521 __le16 reserved2; 522 __le32 log_event_table_ptr; /* SRAM address for event log */ 523 __le32 error_event_table_ptr; /* SRAM address for error log */ 524 __le32 timestamp; 525 __le32 is_valid; 526} __packed; 527 528/* 529 * REPLY_ERROR = 0x2 (response only, not a command) 530 */ 531struct iwl_error_resp { 532 __le32 error_type; 533 u8 cmd_id; 534 u8 reserved1; 535 __le16 bad_cmd_seq_num; 536 __le32 error_info; 537 __le64 timestamp; 538} __packed; 539 540/****************************************************************************** 541 * (1) 542 * RXON Commands & Responses: 543 * 544 *****************************************************************************/ 545 546/* 547 * Rx config defines & structure 548 */ 549/* rx_config device types */ 550enum { 551 RXON_DEV_TYPE_AP = 1, 552 RXON_DEV_TYPE_ESS = 3, 553 RXON_DEV_TYPE_IBSS = 4, 554 RXON_DEV_TYPE_SNIFFER = 6, 555}; 556 557 558#define RXON_RX_CHAIN_DRIVER_FORCE_MSK cpu_to_le16(0x1 << 0) 559#define RXON_RX_CHAIN_DRIVER_FORCE_POS (0) 560#define RXON_RX_CHAIN_VALID_MSK cpu_to_le16(0x7 << 1) 561#define RXON_RX_CHAIN_VALID_POS (1) 562#define RXON_RX_CHAIN_FORCE_SEL_MSK cpu_to_le16(0x7 << 4) 563#define RXON_RX_CHAIN_FORCE_SEL_POS (4) 564#define RXON_RX_CHAIN_FORCE_MIMO_SEL_MSK cpu_to_le16(0x7 << 7) 565#define RXON_RX_CHAIN_FORCE_MIMO_SEL_POS (7) 566#define RXON_RX_CHAIN_CNT_MSK cpu_to_le16(0x3 << 10) 567#define RXON_RX_CHAIN_CNT_POS (10) 568#define RXON_RX_CHAIN_MIMO_CNT_MSK cpu_to_le16(0x3 << 12) 569#define RXON_RX_CHAIN_MIMO_CNT_POS (12) 570#define RXON_RX_CHAIN_MIMO_FORCE_MSK cpu_to_le16(0x1 << 14) 571#define RXON_RX_CHAIN_MIMO_FORCE_POS (14) 572 573/* rx_config flags */ 574/* band & modulation selection */ 575#define RXON_FLG_BAND_24G_MSK cpu_to_le32(1 << 0) 576#define RXON_FLG_CCK_MSK cpu_to_le32(1 << 1) 577/* auto detection enable */ 578#define RXON_FLG_AUTO_DETECT_MSK cpu_to_le32(1 << 2) 579/* TGg protection when tx */ 580#define RXON_FLG_TGG_PROTECT_MSK cpu_to_le32(1 << 3) 581/* cck short slot & preamble */ 582#define RXON_FLG_SHORT_SLOT_MSK cpu_to_le32(1 << 4) 583#define RXON_FLG_SHORT_PREAMBLE_MSK cpu_to_le32(1 << 5) 584/* antenna selection */ 585#define RXON_FLG_DIS_DIV_MSK cpu_to_le32(1 << 7) 586#define RXON_FLG_ANT_SEL_MSK cpu_to_le32(0x0f00) 587#define RXON_FLG_ANT_A_MSK cpu_to_le32(1 << 8) 588#define RXON_FLG_ANT_B_MSK cpu_to_le32(1 << 9) 589/* radar detection enable */ 590#define RXON_FLG_RADAR_DETECT_MSK cpu_to_le32(1 << 12) 591#define RXON_FLG_TGJ_NARROW_BAND_MSK cpu_to_le32(1 << 13) 592/* rx response to host with 8-byte TSF 593* (according to ON_AIR deassertion) */ 594#define RXON_FLG_TSF2HOST_MSK cpu_to_le32(1 << 15) 595 596 597/* HT flags */ 598#define RXON_FLG_CTRL_CHANNEL_LOC_POS (22) 599#define RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK cpu_to_le32(0x1 << 22) 600 601#define RXON_FLG_HT_OPERATING_MODE_POS (23) 602 603#define RXON_FLG_HT_PROT_MSK cpu_to_le32(0x1 << 23) 604#define RXON_FLG_HT40_PROT_MSK cpu_to_le32(0x2 << 23) 605 606#define RXON_FLG_CHANNEL_MODE_POS (25) 607#define RXON_FLG_CHANNEL_MODE_MSK cpu_to_le32(0x3 << 25) 608 609/* channel mode */ 610enum { 611 CHANNEL_MODE_LEGACY = 0, 612 CHANNEL_MODE_PURE_40 = 1, 613 CHANNEL_MODE_MIXED = 2, 614 CHANNEL_MODE_RESERVED = 3, 615}; 616#define RXON_FLG_CHANNEL_MODE_LEGACY \ 617 cpu_to_le32(CHANNEL_MODE_LEGACY << RXON_FLG_CHANNEL_MODE_POS) 618#define RXON_FLG_CHANNEL_MODE_PURE_40 \ 619 cpu_to_le32(CHANNEL_MODE_PURE_40 << RXON_FLG_CHANNEL_MODE_POS) 620#define RXON_FLG_CHANNEL_MODE_MIXED \ 621 cpu_to_le32(CHANNEL_MODE_MIXED << RXON_FLG_CHANNEL_MODE_POS) 622 623/* CTS to self (if spec allows) flag */ 624#define RXON_FLG_SELF_CTS_EN cpu_to_le32(0x1<<30) 625 626/* rx_config filter flags */ 627/* accept all data frames */ 628#define RXON_FILTER_PROMISC_MSK cpu_to_le32(1 << 0) 629/* pass control & management to host */ 630#define RXON_FILTER_CTL2HOST_MSK cpu_to_le32(1 << 1) 631/* accept multi-cast */ 632#define RXON_FILTER_ACCEPT_GRP_MSK cpu_to_le32(1 << 2) 633/* don't decrypt uni-cast frames */ 634#define RXON_FILTER_DIS_DECRYPT_MSK cpu_to_le32(1 << 3) 635/* don't decrypt multi-cast frames */ 636#define RXON_FILTER_DIS_GRP_DECRYPT_MSK cpu_to_le32(1 << 4) 637/* STA is associated */ 638#define RXON_FILTER_ASSOC_MSK cpu_to_le32(1 << 5) 639/* transfer to host non bssid beacons in associated state */ 640#define RXON_FILTER_BCON_AWARE_MSK cpu_to_le32(1 << 6) 641 642/** 643 * REPLY_RXON = 0x10 (command, has simple generic response) 644 * 645 * RXON tunes the radio tuner to a service channel, and sets up a number 646 * of parameters that are used primarily for Rx, but also for Tx operations. 647 * 648 * NOTE: When tuning to a new channel, driver must set the 649 * RXON_FILTER_ASSOC_MSK to 0. This will clear station-dependent 650 * info within the device, including the station tables, tx retry 651 * rate tables, and txpower tables. Driver must build a new station 652 * table and txpower table before transmitting anything on the RXON 653 * channel. 654 * 655 * NOTE: All RXONs wipe clean the internal txpower table. Driver must 656 * issue a new REPLY_TX_PWR_TABLE_CMD after each REPLY_RXON (0x10), 657 * regardless of whether RXON_FILTER_ASSOC_MSK is set. 658 */ 659 660struct iwl3945_rxon_cmd { 661 u8 node_addr[6]; 662 __le16 reserved1; 663 u8 bssid_addr[6]; 664 __le16 reserved2; 665 u8 wlap_bssid_addr[6]; 666 __le16 reserved3; 667 u8 dev_type; 668 u8 air_propagation; 669 __le16 reserved4; 670 u8 ofdm_basic_rates; 671 u8 cck_basic_rates; 672 __le16 assoc_id; 673 __le32 flags; 674 __le32 filter_flags; 675 __le16 channel; 676 __le16 reserved5; 677} __packed; 678 679struct iwl4965_rxon_cmd { 680 u8 node_addr[6]; 681 __le16 reserved1; 682 u8 bssid_addr[6]; 683 __le16 reserved2; 684 u8 wlap_bssid_addr[6]; 685 __le16 reserved3; 686 u8 dev_type; 687 u8 air_propagation; 688 __le16 rx_chain; 689 u8 ofdm_basic_rates; 690 u8 cck_basic_rates; 691 __le16 assoc_id; 692 __le32 flags; 693 __le32 filter_flags; 694 __le16 channel; 695 u8 ofdm_ht_single_stream_basic_rates; 696 u8 ofdm_ht_dual_stream_basic_rates; 697} __packed; 698 699/* Create a common rxon cmd which will be typecast into the 3945 or 4965 700 * specific rxon cmd, depending on where it is called from. 701 */ 702struct iwl_legacy_rxon_cmd { 703 u8 node_addr[6]; 704 __le16 reserved1; 705 u8 bssid_addr[6]; 706 __le16 reserved2; 707 u8 wlap_bssid_addr[6]; 708 __le16 reserved3; 709 u8 dev_type; 710 u8 air_propagation; 711 __le16 rx_chain; 712 u8 ofdm_basic_rates; 713 u8 cck_basic_rates; 714 __le16 assoc_id; 715 __le32 flags; 716 __le32 filter_flags; 717 __le16 channel; 718 u8 ofdm_ht_single_stream_basic_rates; 719 u8 ofdm_ht_dual_stream_basic_rates; 720 u8 reserved4; 721 u8 reserved5; 722} __packed; 723 724 725/* 726 * REPLY_RXON_ASSOC = 0x11 (command, has simple generic response) 727 */ 728struct iwl3945_rxon_assoc_cmd { 729 __le32 flags; 730 __le32 filter_flags; 731 u8 ofdm_basic_rates; 732 u8 cck_basic_rates; 733 __le16 reserved; 734} __packed; 735 736struct iwl4965_rxon_assoc_cmd { 737 __le32 flags; 738 __le32 filter_flags; 739 u8 ofdm_basic_rates; 740 u8 cck_basic_rates; 741 u8 ofdm_ht_single_stream_basic_rates; 742 u8 ofdm_ht_dual_stream_basic_rates; 743 __le16 rx_chain_select_flags; 744 __le16 reserved; 745} __packed; 746 747#define IWL_CONN_MAX_LISTEN_INTERVAL 10 748#define IWL_MAX_UCODE_BEACON_INTERVAL 4 /* 4096 */ 749#define IWL39_MAX_UCODE_BEACON_INTERVAL 1 /* 1024 */ 750 751/* 752 * REPLY_RXON_TIMING = 0x14 (command, has simple generic response) 753 */ 754struct iwl_rxon_time_cmd { 755 __le64 timestamp; 756 __le16 beacon_interval; 757 __le16 atim_window; 758 __le32 beacon_init_val; 759 __le16 listen_interval; 760 u8 dtim_period; 761 u8 delta_cp_bss_tbtts; 762} __packed; 763 764/* 765 * REPLY_CHANNEL_SWITCH = 0x72 (command, has simple generic response) 766 */ 767struct iwl3945_channel_switch_cmd { 768 u8 band; 769 u8 expect_beacon; 770 __le16 channel; 771 __le32 rxon_flags; 772 __le32 rxon_filter_flags; 773 __le32 switch_time; 774 struct iwl3945_power_per_rate power[IWL_MAX_RATES]; 775} __packed; 776 777struct iwl4965_channel_switch_cmd { 778 u8 band; 779 u8 expect_beacon; 780 __le16 channel; 781 __le32 rxon_flags; 782 __le32 rxon_filter_flags; 783 __le32 switch_time; 784 struct iwl4965_tx_power_db tx_power; 785} __packed; 786 787/* 788 * CHANNEL_SWITCH_NOTIFICATION = 0x73 (notification only, not a command) 789 */ 790struct iwl_csa_notification { 791 __le16 band; 792 __le16 channel; 793 __le32 status; /* 0 - OK, 1 - fail */ 794} __packed; 795 796/****************************************************************************** 797 * (2) 798 * Quality-of-Service (QOS) Commands & Responses: 799 * 800 *****************************************************************************/ 801 802/** 803 * struct iwl_ac_qos -- QOS timing params for REPLY_QOS_PARAM 804 * One for each of 4 EDCA access categories in struct iwl_qosparam_cmd 805 * 806 * @cw_min: Contention window, start value in numbers of slots. 807 * Should be a power-of-2, minus 1. Device's default is 0x0f. 808 * @cw_max: Contention window, max value in numbers of slots. 809 * Should be a power-of-2, minus 1. Device's default is 0x3f. 810 * @aifsn: Number of slots in Arbitration Interframe Space (before 811 * performing random backoff timing prior to Tx). Device default 1. 812 * @edca_txop: Length of Tx opportunity, in uSecs. Device default is 0. 813 * 814 * Device will automatically increase contention window by (2*CW) + 1 for each 815 * transmission retry. Device uses cw_max as a bit mask, ANDed with new CW 816 * value, to cap the CW value. 817 */ 818struct iwl_ac_qos { 819 __le16 cw_min; 820 __le16 cw_max; 821 u8 aifsn; 822 u8 reserved1; 823 __le16 edca_txop; 824} __packed; 825 826/* QoS flags defines */ 827#define QOS_PARAM_FLG_UPDATE_EDCA_MSK cpu_to_le32(0x01) 828#define QOS_PARAM_FLG_TGN_MSK cpu_to_le32(0x02) 829#define QOS_PARAM_FLG_TXOP_TYPE_MSK cpu_to_le32(0x10) 830 831/* Number of Access Categories (AC) (EDCA), queues 0..3 */ 832#define AC_NUM 4 833 834/* 835 * REPLY_QOS_PARAM = 0x13 (command, has simple generic response) 836 * 837 * This command sets up timings for each of the 4 prioritized EDCA Tx FIFOs 838 * 0: Background, 1: Best Effort, 2: Video, 3: Voice. 839 */ 840struct iwl_qosparam_cmd { 841 __le32 qos_flags; 842 struct iwl_ac_qos ac[AC_NUM]; 843} __packed; 844 845/****************************************************************************** 846 * (3) 847 * Add/Modify Stations Commands & Responses: 848 * 849 *****************************************************************************/ 850/* 851 * Multi station support 852 */ 853 854/* Special, dedicated locations within device's station table */ 855#define IWL_AP_ID 0 856#define IWL_STA_ID 2 857#define IWL3945_BROADCAST_ID 24 858#define IWL3945_STATION_COUNT 25 859#define IWL4965_BROADCAST_ID 31 860#define IWL4965_STATION_COUNT 32 861 862#define IWL_STATION_COUNT 32 /* MAX(3945,4965)*/ 863#define IWL_INVALID_STATION 255 864 865#define STA_FLG_TX_RATE_MSK cpu_to_le32(1 << 2) 866#define STA_FLG_PWR_SAVE_MSK cpu_to_le32(1 << 8) 867#define STA_FLG_RTS_MIMO_PROT_MSK cpu_to_le32(1 << 17) 868#define STA_FLG_AGG_MPDU_8US_MSK cpu_to_le32(1 << 18) 869#define STA_FLG_MAX_AGG_SIZE_POS (19) 870#define STA_FLG_MAX_AGG_SIZE_MSK cpu_to_le32(3 << 19) 871#define STA_FLG_HT40_EN_MSK cpu_to_le32(1 << 21) 872#define STA_FLG_MIMO_DIS_MSK cpu_to_le32(1 << 22) 873#define STA_FLG_AGG_MPDU_DENSITY_POS (23) 874#define STA_FLG_AGG_MPDU_DENSITY_MSK cpu_to_le32(7 << 23) 875 876/* Use in mode field. 1: modify existing entry, 0: add new station entry */ 877#define STA_CONTROL_MODIFY_MSK 0x01 878 879/* key flags __le16*/ 880#define STA_KEY_FLG_ENCRYPT_MSK cpu_to_le16(0x0007) 881#define STA_KEY_FLG_NO_ENC cpu_to_le16(0x0000) 882#define STA_KEY_FLG_WEP cpu_to_le16(0x0001) 883#define STA_KEY_FLG_CCMP cpu_to_le16(0x0002) 884#define STA_KEY_FLG_TKIP cpu_to_le16(0x0003) 885 886#define STA_KEY_FLG_KEYID_POS 8 887#define STA_KEY_FLG_INVALID cpu_to_le16(0x0800) 888/* wep key is either from global key (0) or from station info array (1) */ 889#define STA_KEY_FLG_MAP_KEY_MSK cpu_to_le16(0x0008) 890 891/* wep key in STA: 5-bytes (0) or 13-bytes (1) */ 892#define STA_KEY_FLG_KEY_SIZE_MSK cpu_to_le16(0x1000) 893#define STA_KEY_MULTICAST_MSK cpu_to_le16(0x4000) 894#define STA_KEY_MAX_NUM 8 895 896/* Flags indicate whether to modify vs. don't change various station params */ 897#define STA_MODIFY_KEY_MASK 0x01 898#define STA_MODIFY_TID_DISABLE_TX 0x02 899#define STA_MODIFY_TX_RATE_MSK 0x04 900#define STA_MODIFY_ADDBA_TID_MSK 0x08 901#define STA_MODIFY_DELBA_TID_MSK 0x10 902#define STA_MODIFY_SLEEP_TX_COUNT_MSK 0x20 903 904/* Receiver address (actually, Rx station's index into station table), 905 * combined with Traffic ID (QOS priority), in format used by Tx Scheduler */ 906#define BUILD_RAxTID(sta_id, tid) (((sta_id) << 4) + (tid)) 907 908struct iwl4965_keyinfo { 909 __le16 key_flags; 910 u8 tkip_rx_tsc_byte2; /* TSC[2] for key mix ph1 detection */ 911 u8 reserved1; 912 __le16 tkip_rx_ttak[5]; /* 10-byte unicast TKIP TTAK */ 913 u8 key_offset; 914 u8 reserved2; 915 u8 key[16]; /* 16-byte unicast decryption key */ 916} __packed; 917 918/** 919 * struct sta_id_modify 920 * @addr[ETH_ALEN]: station's MAC address 921 * @sta_id: index of station in uCode's station table 922 * @modify_mask: STA_MODIFY_*, 1: modify, 0: don't change 923 * 924 * Driver selects unused table index when adding new station, 925 * or the index to a pre-existing station entry when modifying that station. 926 * Some indexes have special purposes (IWL_AP_ID, index 0, is for AP). 927 * 928 * modify_mask flags select which parameters to modify vs. leave alone. 929 */ 930struct sta_id_modify { 931 u8 addr[ETH_ALEN]; 932 __le16 reserved1; 933 u8 sta_id; 934 u8 modify_mask; 935 __le16 reserved2; 936} __packed; 937 938/* 939 * REPLY_ADD_STA = 0x18 (command) 940 * 941 * The device contains an internal table of per-station information, 942 * with info on security keys, aggregation parameters, and Tx rates for 943 * initial Tx attempt and any retries (4965 devices uses 944 * REPLY_TX_LINK_QUALITY_CMD, 945 * 3945 uses REPLY_RATE_SCALE to set up rate tables). 946 * 947 * REPLY_ADD_STA sets up the table entry for one station, either creating 948 * a new entry, or modifying a pre-existing one. 949 * 950 * NOTE: RXON command (without "associated" bit set) wipes the station table 951 * clean. Moving into RF_KILL state does this also. Driver must set up 952 * new station table before transmitting anything on the RXON channel 953 * (except active scans or active measurements; those commands carry 954 * their own txpower/rate setup data). 955 * 956 * When getting started on a new channel, driver must set up the 957 * IWL_BROADCAST_ID entry (last entry in the table). For a client 958 * station in a BSS, once an AP is selected, driver sets up the AP STA 959 * in the IWL_AP_ID entry (1st entry in the table). BROADCAST and AP 960 * are all that are needed for a BSS client station. If the device is 961 * used as AP, or in an IBSS network, driver must set up station table 962 * entries for all STAs in network, starting with index IWL_STA_ID. 963 */ 964 965struct iwl3945_addsta_cmd { 966 u8 mode; /* 1: modify existing, 0: add new station */ 967 u8 reserved[3]; 968 struct sta_id_modify sta; 969 struct iwl4965_keyinfo key; 970 __le32 station_flags; /* STA_FLG_* */ 971 __le32 station_flags_msk; /* STA_FLG_* */ 972 973 /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID) 974 * corresponding to bit (e.g. bit 5 controls TID 5). 975 * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */ 976 __le16 tid_disable_tx; 977 978 __le16 rate_n_flags; 979 980 /* TID for which to add block-ack support. 981 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ 982 u8 add_immediate_ba_tid; 983 984 /* TID for which to remove block-ack support. 985 * Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */ 986 u8 remove_immediate_ba_tid; 987 988 /* Starting Sequence Number for added block-ack support. 989 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ 990 __le16 add_immediate_ba_ssn; 991} __packed; 992 993struct iwl4965_addsta_cmd { 994 u8 mode; /* 1: modify existing, 0: add new station */ 995 u8 reserved[3]; 996 struct sta_id_modify sta; 997 struct iwl4965_keyinfo key; 998 __le32 station_flags; /* STA_FLG_* */ 999 __le32 station_flags_msk; /* STA_FLG_* */ 1000
1001 /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID) 1002 * corresponding to bit (e.g. bit 5 controls TID 5). 1003 * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */ 1004 __le16 tid_disable_tx; 1005 1006 __le16 reserved1; 1007 1008 /* TID for which to add block-ack support. 1009 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ 1010 u8 add_immediate_ba_tid; 1011 1012 /* TID for which to remove block-ack support. 1013 * Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */ 1014 u8 remove_immediate_ba_tid; 1015 1016 /* Starting Sequence Number for added block-ack support. 1017 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ 1018 __le16 add_immediate_ba_ssn; 1019 1020 /* 1021 * Number of packets OK to transmit to station even though 1022 * it is asleep -- used to synchronise PS-poll and u-APSD 1023 * responses while ucode keeps track of STA sleep state. 1024 */ 1025 __le16 sleep_tx_count; 1026 1027 __le16 reserved2; 1028} __packed; 1029 1030/* Wrapper struct for 3945 and 4965 addsta_cmd structures */ 1031struct iwl_legacy_addsta_cmd { 1032 u8 mode; /* 1: modify existing, 0: add new station */ 1033 u8 reserved[3]; 1034 struct sta_id_modify sta; 1035 struct iwl4965_keyinfo key; 1036 __le32 station_flags; /* STA_FLG_* */ 1037 __le32 station_flags_msk; /* STA_FLG_* */ 1038 1039 /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID) 1040 * corresponding to bit (e.g. bit 5 controls TID 5). 1041 * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */ 1042 __le16 tid_disable_tx; 1043 1044 __le16 rate_n_flags; /* 3945 only */ 1045 1046 /* TID for which to add block-ack support. 1047 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ 1048 u8 add_immediate_ba_tid; 1049 1050 /* TID for which to remove block-ack support. 1051 * Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */ 1052 u8 remove_immediate_ba_tid; 1053 1054 /* Starting Sequence Number for added block-ack support. 1055 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ 1056 __le16 add_immediate_ba_ssn; 1057 1058 /* 1059 * Number of packets OK to transmit to station even though 1060 * it is asleep -- used to synchronise PS-poll and u-APSD 1061 * responses while ucode keeps track of STA sleep state. 1062 */ 1063 __le16 sleep_tx_count; 1064 1065 __le16 reserved2; 1066} __packed; 1067 1068 1069#define ADD_STA_SUCCESS_MSK 0x1 1070#define ADD_STA_NO_ROOM_IN_TABLE 0x2 1071#define ADD_STA_NO_BLOCK_ACK_RESOURCE 0x4 1072#define ADD_STA_MODIFY_NON_EXIST_STA 0x8 1073/* 1074 * REPLY_ADD_STA = 0x18 (response) 1075 */ 1076struct iwl_add_sta_resp { 1077 u8 status; /* ADD_STA_* */ 1078} __packed; 1079 1080#define REM_STA_SUCCESS_MSK 0x1 1081/* 1082 * REPLY_REM_STA = 0x19 (response) 1083 */ 1084struct iwl_rem_sta_resp { 1085 u8 status; 1086} __packed; 1087 1088/* 1089 * REPLY_REM_STA = 0x19 (command) 1090 */ 1091struct iwl_rem_sta_cmd { 1092 u8 num_sta; /* number of removed stations */ 1093 u8 reserved[3]; 1094 u8 addr[ETH_ALEN]; /* MAC addr of the first station */ 1095 u8 reserved2[2]; 1096} __packed; 1097 1098#define IWL_TX_FIFO_BK_MSK cpu_to_le32(BIT(0)) 1099#define IWL_TX_FIFO_BE_MSK cpu_to_le32(BIT(1)) 1100#define IWL_TX_FIFO_VI_MSK cpu_to_le32(BIT(2)) 1101#define IWL_TX_FIFO_VO_MSK cpu_to_le32(BIT(3)) 1102#define IWL_AGG_TX_QUEUE_MSK cpu_to_le32(0xffc00) 1103 1104#define IWL_DROP_SINGLE 0 1105#define IWL_DROP_SELECTED 1 1106#define IWL_DROP_ALL 2 1107 1108/* 1109 * REPLY_WEP_KEY = 0x20 1110 */ 1111struct iwl_wep_key { 1112 u8 key_index; 1113 u8 key_offset; 1114 u8 reserved1[2]; 1115 u8 key_size; 1116 u8 reserved2[3]; 1117 u8 key[16]; 1118} __packed; 1119 1120struct iwl_wep_cmd { 1121 u8 num_keys; 1122 u8 global_key_type; 1123 u8 flags; 1124 u8 reserved; 1125 struct iwl_wep_key key[0]; 1126} __packed; 1127 1128#define WEP_KEY_WEP_TYPE 1 1129#define WEP_KEYS_MAX 4 1130#define WEP_INVALID_OFFSET 0xff 1131#define WEP_KEY_LEN_64 5 1132#define WEP_KEY_LEN_128 13 1133 1134/****************************************************************************** 1135 * (4) 1136 * Rx Responses: 1137 * 1138 *****************************************************************************/ 1139 1140#define RX_RES_STATUS_NO_CRC32_ERROR cpu_to_le32(1 << 0) 1141#define RX_RES_STATUS_NO_RXE_OVERFLOW cpu_to_le32(1 << 1) 1142 1143#define RX_RES_PHY_FLAGS_BAND_24_MSK cpu_to_le16(1 << 0) 1144#define RX_RES_PHY_FLAGS_MOD_CCK_MSK cpu_to_le16(1 << 1) 1145#define RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK cpu_to_le16(1 << 2) 1146#define RX_RES_PHY_FLAGS_NARROW_BAND_MSK cpu_to_le16(1 << 3) 1147#define RX_RES_PHY_FLAGS_ANTENNA_MSK 0xf0 1148#define RX_RES_PHY_FLAGS_ANTENNA_POS 4 1149 1150#define RX_RES_STATUS_SEC_TYPE_MSK (0x7 << 8) 1151#define RX_RES_STATUS_SEC_TYPE_NONE (0x0 << 8) 1152#define RX_RES_STATUS_SEC_TYPE_WEP (0x1 << 8) 1153#define RX_RES_STATUS_SEC_TYPE_CCMP (0x2 << 8) 1154#define RX_RES_STATUS_SEC_TYPE_TKIP (0x3 << 8) 1155#define RX_RES_STATUS_SEC_TYPE_ERR (0x7 << 8) 1156 1157#define RX_RES_STATUS_STATION_FOUND (1<<6) 1158#define RX_RES_STATUS_NO_STATION_INFO_MISMATCH (1<<7) 1159 1160#define RX_RES_STATUS_DECRYPT_TYPE_MSK (0x3 << 11) 1161#define RX_RES_STATUS_NOT_DECRYPT (0x0 << 11) 1162#define RX_RES_STATUS_DECRYPT_OK (0x3 << 11) 1163#define RX_RES_STATUS_BAD_ICV_MIC (0x1 << 11) 1164#define RX_RES_STATUS_BAD_KEY_TTAK (0x2 << 11) 1165 1166#define RX_MPDU_RES_STATUS_ICV_OK (0x20) 1167#define RX_MPDU_RES_STATUS_MIC_OK (0x40) 1168#define RX_MPDU_RES_STATUS_TTAK_OK (1 << 7) 1169#define RX_MPDU_RES_STATUS_DEC_DONE_MSK (0x800) 1170 1171 1172struct iwl3945_rx_frame_stats { 1173 u8 phy_count; 1174 u8 id; 1175 u8 rssi; 1176 u8 agc; 1177 __le16 sig_avg; 1178 __le16 noise_diff; 1179 u8 payload[0]; 1180} __packed; 1181 1182struct iwl3945_rx_frame_hdr { 1183 __le16 channel; 1184 __le16 phy_flags; 1185 u8 reserved1; 1186 u8 rate; 1187 __le16 len; 1188 u8 payload[0]; 1189} __packed; 1190 1191struct iwl3945_rx_frame_end { 1192 __le32 status; 1193 __le64 timestamp; 1194 __le32 beacon_timestamp; 1195} __packed; 1196 1197/* 1198 * REPLY_3945_RX = 0x1b (response only, not a command) 1199 * 1200 * NOTE: DO NOT dereference from casts to this structure 1201 * It is provided only for calculating minimum data set size. 1202 * The actual offsets of the hdr and end are dynamic based on 1203 * stats.phy_count 1204 */ 1205struct iwl3945_rx_frame { 1206 struct iwl3945_rx_frame_stats stats; 1207 struct iwl3945_rx_frame_hdr hdr; 1208 struct iwl3945_rx_frame_end end; 1209} __packed; 1210 1211#define IWL39_RX_FRAME_SIZE (4 + sizeof(struct iwl3945_rx_frame)) 1212 1213/* Fixed (non-configurable) rx data from phy */ 1214 1215#define IWL49_RX_RES_PHY_CNT 14 1216#define IWL49_RX_PHY_FLAGS_ANTENNAE_OFFSET (4) 1217#define IWL49_RX_PHY_FLAGS_ANTENNAE_MASK (0x70) 1218#define IWL49_AGC_DB_MASK (0x3f80) /* MASK(7,13) */ 1219#define IWL49_AGC_DB_POS (7) 1220struct iwl4965_rx_non_cfg_phy { 1221 __le16 ant_selection; /* ant A bit 4, ant B bit 5, ant C bit 6 */ 1222 __le16 agc_info; /* agc code 0:6, agc dB 7:13, reserved 14:15 */ 1223 u8 rssi_info[6]; /* we use even entries, 0/2/4 for A/B/C rssi */ 1224 u8 pad[0]; 1225} __packed; 1226 1227 1228/* 1229 * REPLY_RX = 0xc3 (response only, not a command) 1230 * Used only for legacy (non 11n) frames. 1231 */ 1232struct iwl_rx_phy_res { 1233 u8 non_cfg_phy_cnt; /* non configurable DSP phy data byte count */ 1234 u8 cfg_phy_cnt; /* configurable DSP phy data byte count */ 1235 u8 stat_id; /* configurable DSP phy data set ID */ 1236 u8 reserved1; 1237 __le64 timestamp; /* TSF at on air rise */ 1238 __le32 beacon_time_stamp; /* beacon at on-air rise */ 1239 __le16 phy_flags; /* general phy flags: band, modulation, ... */ 1240 __le16 channel; /* channel number */ 1241 u8 non_cfg_phy_buf[32]; /* for various implementations of non_cfg_phy */ 1242 __le32 rate_n_flags; /* RATE_MCS_* */ 1243 __le16 byte_count; /* frame's byte-count */ 1244 __le16 frame_time; /* frame's time on the air */ 1245} __packed; 1246 1247struct iwl_rx_mpdu_res_start { 1248 __le16 byte_count; 1249 __le16 reserved; 1250} __packed; 1251 1252 1253/****************************************************************************** 1254 * (5) 1255 * Tx Commands & Responses: 1256 * 1257 * Driver must place each REPLY_TX command into one of the prioritized Tx 1258 * queues in host DRAM, shared between driver and device (see comments for 1259 * SCD registers and Tx/Rx Queues). When the device's Tx scheduler and uCode 1260 * are preparing to transmit, the device pulls the Tx command over the PCI 1261 * bus via one of the device's Tx DMA channels, to fill an internal FIFO 1262 * from which data will be transmitted. 1263 * 1264 * uCode handles all timing and protocol related to control frames 1265 * (RTS/CTS/ACK), based on flags in the Tx command. uCode and Tx scheduler 1266 * handle reception of block-acks; uCode updates the host driver via 1267 * REPLY_COMPRESSED_BA. 1268 * 1269 * uCode handles retrying Tx when an ACK is expected but not received. 1270 * This includes trying lower data rates than the one requested in the Tx 1271 * command, as set up by the REPLY_RATE_SCALE (for 3945) or 1272 * REPLY_TX_LINK_QUALITY_CMD (4965). 1273 * 1274 * Driver sets up transmit power for various rates via REPLY_TX_PWR_TABLE_CMD. 1275 * This command must be executed after every RXON command, before Tx can occur. 1276 *****************************************************************************/ 1277 1278/* REPLY_TX Tx flags field */ 1279 1280/* 1281 * 1: Use Request-To-Send protocol before this frame. 1282 * Mutually exclusive vs. TX_CMD_FLG_CTS_MSK. 1283 */ 1284#define TX_CMD_FLG_RTS_MSK cpu_to_le32(1 << 1) 1285 1286/* 1287 * 1: Transmit Clear-To-Send to self before this frame. 1288 * Driver should set this for AUTH/DEAUTH/ASSOC-REQ/REASSOC mgmnt frames. 1289 * Mutually exclusive vs. TX_CMD_FLG_RTS_MSK. 1290 */ 1291#define TX_CMD_FLG_CTS_MSK cpu_to_le32(1 << 2) 1292 1293/* 1: Expect ACK from receiving station 1294 * 0: Don't expect ACK (MAC header's duration field s/b 0) 1295 * Set this for unicast frames, but not broadcast/multicast. */ 1296#define TX_CMD_FLG_ACK_MSK cpu_to_le32(1 << 3) 1297 1298/* For 4965 devices: 1299 * 1: Use rate scale table (see REPLY_TX_LINK_QUALITY_CMD). 1300 * Tx command's initial_rate_index indicates first rate to try; 1301 * uCode walks through table for additional Tx attempts. 1302 * 0: Use Tx rate/MCS from Tx command's rate_n_flags field. 1303 * This rate will be used for all Tx attempts; it will not be scaled. */ 1304#define TX_CMD_FLG_STA_RATE_MSK cpu_to_le32(1 << 4) 1305 1306/* 1: Expect immediate block-ack. 1307 * Set when Txing a block-ack request frame. Also set TX_CMD_FLG_ACK_MSK. */ 1308#define TX_CMD_FLG_IMM_BA_RSP_MASK cpu_to_le32(1 << 6) 1309 1310/* 1311 * 1: Frame requires full Tx-Op protection. 1312 * Set this if either RTS or CTS Tx Flag gets set. 1313 */ 1314#define TX_CMD_FLG_FULL_TXOP_PROT_MSK cpu_to_le32(1 << 7) 1315 1316/* Tx antenna selection field; used only for 3945, reserved (0) for 4965 devices. 1317 * Set field to "0" to allow 3945 uCode to select antenna (normal usage). */ 1318#define TX_CMD_FLG_ANT_SEL_MSK cpu_to_le32(0xf00) 1319#define TX_CMD_FLG_ANT_A_MSK cpu_to_le32(1 << 8) 1320#define TX_CMD_FLG_ANT_B_MSK cpu_to_le32(1 << 9) 1321 1322/* 1: uCode overrides sequence control field in MAC header. 1323 * 0: Driver provides sequence control field in MAC header. 1324 * Set this for management frames, non-QOS data frames, non-unicast frames, 1325 * and also in Tx command embedded in REPLY_SCAN_CMD for active scans. */ 1326#define TX_CMD_FLG_SEQ_CTL_MSK cpu_to_le32(1 << 13) 1327 1328/* 1: This frame is non-last MPDU; more fragments are coming. 1329 * 0: Last fragment, or not using fragmentation. */ 1330#define TX_CMD_FLG_MORE_FRAG_MSK cpu_to_le32(1 << 14) 1331 1332/* 1: uCode calculates and inserts Timestamp Function (TSF) in outgoing frame. 1333 * 0: No TSF required in outgoing frame. 1334 * Set this for transmitting beacons and probe responses. */ 1335#define TX_CMD_FLG_TSF_MSK cpu_to_le32(1 << 16) 1336 1337/* 1: Driver inserted 2 bytes pad after the MAC header, for (required) dword 1338 * alignment of frame's payload data field. 1339 * 0: No pad 1340 * Set this for MAC headers with 26 or 30 bytes, i.e. those with QOS or ADDR4 1341 * field (but not both). Driver must align frame data (i.e. data following 1342 * MAC header) to DWORD boundary. */ 1343#define TX_CMD_FLG_MH_PAD_MSK cpu_to_le32(1 << 20) 1344 1345/* accelerate aggregation support 1346 * 0 - no CCMP encryption; 1 - CCMP encryption */ 1347#define TX_CMD_FLG_AGG_CCMP_MSK cpu_to_le32(1 << 22) 1348 1349/* HCCA-AP - disable duration overwriting. */ 1350#define TX_CMD_FLG_DUR_MSK cpu_to_le32(1 << 25) 1351 1352 1353/* 1354 * TX command security control 1355 */ 1356#define TX_CMD_SEC_WEP 0x01 1357#define TX_CMD_SEC_CCM 0x02 1358#define TX_CMD_SEC_TKIP 0x03 1359#define TX_CMD_SEC_MSK 0x03 1360#define TX_CMD_SEC_SHIFT 6 1361#define TX_CMD_SEC_KEY128 0x08 1362 1363/* 1364 * security overhead sizes 1365 */ 1366#define WEP_IV_LEN 4 1367#define WEP_ICV_LEN 4 1368#define CCMP_MIC_LEN 8 1369#define TKIP_ICV_LEN 4 1370 1371/* 1372 * REPLY_TX = 0x1c (command) 1373 */ 1374 1375struct iwl3945_tx_cmd { 1376 /* 1377 * MPDU byte count: 1378 * MAC header (24/26/30/32 bytes) + 2 bytes pad if 26/30 header size, 1379 * + 8 byte IV for CCM or TKIP (not used for WEP) 1380 * + Data payload 1381 * + 8-byte MIC (not used for CCM/WEP) 1382 * NOTE: Does not include Tx command bytes, post-MAC pad bytes, 1383 * MIC (CCM) 8 bytes, ICV (WEP/TKIP/CKIP) 4 bytes, CRC 4 bytes.i 1384 * Range: 14-2342 bytes. 1385 */ 1386 __le16 len; 1387 1388 /* 1389 * MPDU or MSDU byte count for next frame. 1390 * Used for fragmentation and bursting, but not 11n aggregation. 1391 * Same as "len", but for next frame. Set to 0 if not applicable. 1392 */ 1393 __le16 next_frame_len; 1394 1395 __le32 tx_flags; /* TX_CMD_FLG_* */ 1396 1397 u8 rate; 1398 1399 /* Index of recipient station in uCode's station table */ 1400 u8 sta_id; 1401 u8 tid_tspec; 1402 u8 sec_ctl; 1403 u8 key[16]; 1404 union { 1405 u8 byte[8]; 1406 __le16 word[4]; 1407 __le32 dw[2]; 1408 } tkip_mic; 1409 __le32 next_frame_info; 1410 union { 1411 __le32 life_time; 1412 __le32 attempt; 1413 } stop_time; 1414 u8 supp_rates[2]; 1415 u8 rts_retry_limit; /*byte 50 */ 1416 u8 data_retry_limit; /*byte 51 */ 1417 union { 1418 __le16 pm_frame_timeout; 1419 __le16 attempt_duration; 1420 } timeout; 1421 1422 /* 1423 * Duration of EDCA burst Tx Opportunity, in 32-usec units. 1424 * Set this if txop time is not specified by HCCA protocol (e.g. by AP). 1425 */ 1426 __le16 driver_txop; 1427 1428 /* 1429 * MAC header goes here, followed by 2 bytes padding if MAC header 1430 * length is 26 or 30 bytes, followed by payload data 1431 */ 1432 u8 payload[0]; 1433 struct ieee80211_hdr hdr[0]; 1434} __packed; 1435 1436/* 1437 * REPLY_TX = 0x1c (response) 1438 */ 1439struct iwl3945_tx_resp { 1440 u8 failure_rts; 1441 u8 failure_frame; 1442 u8 bt_kill_count; 1443 u8 rate; 1444 __le32 wireless_media_time; 1445 __le32 status; /* TX status */ 1446} __packed; 1447 1448 1449/* 1450 * 4965 uCode updates these Tx attempt count values in host DRAM. 1451 * Used for managing Tx retries when expecting block-acks. 1452 * Driver should set these fields to 0. 1453 */ 1454struct iwl_dram_scratch { 1455 u8 try_cnt; /* Tx attempts */ 1456 u8 bt_kill_cnt; /* Tx attempts blocked by Bluetooth device */ 1457 __le16 reserved; 1458} __packed; 1459 1460struct iwl_tx_cmd { 1461 /* 1462 * MPDU byte count: 1463 * MAC header (24/26/30/32 bytes) + 2 bytes pad if 26/30 header size, 1464 * + 8 byte IV for CCM or TKIP (not used for WEP) 1465 * + Data payload 1466 * + 8-byte MIC (not used for CCM/WEP) 1467 * NOTE: Does not include Tx command bytes, post-MAC pad bytes, 1468 * MIC (CCM) 8 bytes, ICV (WEP/TKIP/CKIP) 4 bytes, CRC 4 bytes.i 1469 * Range: 14-2342 bytes. 1470 */ 1471 __le16 len; 1472 1473 /* 1474 * MPDU or MSDU byte count for next frame. 1475 * Used for fragmentation and bursting, but not 11n aggregation. 1476 * Same as "len", but for next frame. Set to 0 if not applicable. 1477 */ 1478 __le16 next_frame_len; 1479 1480 __le32 tx_flags; /* TX_CMD_FLG_* */ 1481 1482 /* uCode may modify this field of the Tx command (in host DRAM!). 1483 * Driver must also set dram_lsb_ptr and dram_msb_ptr in this cmd. */ 1484 struct iwl_dram_scratch scratch; 1485 1486 /* Rate for *all* Tx attempts, if TX_CMD_FLG_STA_RATE_MSK is cleared. */ 1487 __le32 rate_n_flags; /* RATE_MCS_* */ 1488 1489 /* Index of destination station in uCode's station table */ 1490 u8 sta_id; 1491 1492 /* Type of security encryption: CCM or TKIP */ 1493 u8 sec_ctl; /* TX_CMD_SEC_* */ 1494 1495 /* 1496 * Index into rate table (see REPLY_TX_LINK_QUALITY_CMD) for initial 1497 * Tx attempt, if TX_CMD_FLG_STA_RATE_MSK is set. Normally "0" for 1498 * data frames, this field may be used to selectively reduce initial 1499 * rate (via non-0 value) for special frames (e.g. management), while 1500 * still supporting rate scaling for all frames. 1501 */ 1502 u8 initial_rate_index; 1503 u8 reserved; 1504 u8 key[16]; 1505 __le16 next_frame_flags; 1506 __le16 reserved2; 1507 union { 1508 __le32 life_time; 1509 __le32 attempt; 1510 } stop_time; 1511 1512 /* Host DRAM physical address pointer to "scratch" in this command. 1513 * Must be dword aligned. "0" in dram_lsb_ptr disables usage. */ 1514 __le32 dram_lsb_ptr; 1515 u8 dram_msb_ptr; 1516 1517 u8 rts_retry_limit; /*byte 50 */ 1518 u8 data_retry_limit; /*byte 51 */ 1519 u8 tid_tspec; 1520 union { 1521 __le16 pm_frame_timeout; 1522 __le16 attempt_duration; 1523 } timeout; 1524 1525 /* 1526 * Duration of EDCA burst Tx Opportunity, in 32-usec units. 1527 * Set this if txop time is not specified by HCCA protocol (e.g. by AP). 1528 */ 1529 __le16 driver_txop; 1530 1531 /* 1532 * MAC header goes here, followed by 2 bytes padding if MAC header 1533 * length is 26 or 30 bytes, followed by payload data 1534 */ 1535 u8 payload[0]; 1536 struct ieee80211_hdr hdr[0]; 1537} __packed; 1538 1539/* TX command response is sent after *3945* transmission attempts. 1540 * 1541 * NOTES: 1542 * 1543 * TX_STATUS_FAIL_NEXT_FRAG 1544 * 1545 * If the fragment flag in the MAC header for the frame being transmitted 1546 * is set and there is insufficient time to transmit the next frame, the 1547 * TX status will be returned with 'TX_STATUS_FAIL_NEXT_FRAG'. 1548 * 1549 * TX_STATUS_FIFO_UNDERRUN 1550 * 1551 * Indicates the host did not provide bytes to the FIFO fast enough while 1552 * a TX was in progress. 1553 * 1554 * TX_STATUS_FAIL_MGMNT_ABORT 1555 * 1556 * This status is only possible if the ABORT ON MGMT RX parameter was 1557 * set to true with the TX command. 1558 * 1559 * If the MSB of the status parameter is set then an abort sequence is 1560 * required. This sequence consists of the host activating the TX Abort 1561 * control line, and then waiting for the TX Abort command response. This 1562 * indicates that a the device is no longer in a transmit state, and that the 1563 * command FIFO has been cleared. The host must then deactivate the TX Abort 1564 * control line. Receiving is still allowed in this case. 1565 */ 1566enum { 1567 TX_3945_STATUS_SUCCESS = 0x01, 1568 TX_3945_STATUS_DIRECT_DONE = 0x02, 1569 TX_3945_STATUS_FAIL_SHORT_LIMIT = 0x82, 1570 TX_3945_STATUS_FAIL_LONG_LIMIT = 0x83, 1571 TX_3945_STATUS_FAIL_FIFO_UNDERRUN = 0x84, 1572 TX_3945_STATUS_FAIL_MGMNT_ABORT = 0x85, 1573 TX_3945_STATUS_FAIL_NEXT_FRAG = 0x86, 1574 TX_3945_STATUS_FAIL_LIFE_EXPIRE = 0x87, 1575 TX_3945_STATUS_FAIL_DEST_PS = 0x88, 1576 TX_3945_STATUS_FAIL_ABORTED = 0x89, 1577 TX_3945_STATUS_FAIL_BT_RETRY = 0x8a, 1578 TX_3945_STATUS_FAIL_STA_INVALID = 0x8b, 1579 TX_3945_STATUS_FAIL_FRAG_DROPPED = 0x8c, 1580 TX_3945_STATUS_FAIL_TID_DISABLE = 0x8d, 1581 TX_3945_STATUS_FAIL_FRAME_FLUSHED = 0x8e, 1582 TX_3945_STATUS_FAIL_INSUFFICIENT_CF_POLL = 0x8f, 1583 TX_3945_STATUS_FAIL_TX_LOCKED = 0x90, 1584 TX_3945_STATUS_FAIL_NO_BEACON_ON_RADAR = 0x91, 1585}; 1586 1587/* 1588 * TX command response is sent after *4965* transmission attempts. 1589 * 1590 * both postpone and abort status are expected behavior from uCode. there is 1591 * no special operation required from driver; except for RFKILL_FLUSH, 1592 * which required tx flush host command to flush all the tx frames in queues 1593 */ 1594enum { 1595 TX_STATUS_SUCCESS = 0x01, 1596 TX_STATUS_DIRECT_DONE = 0x02, 1597 /* postpone TX */ 1598 TX_STATUS_POSTPONE_DELAY = 0x40, 1599 TX_STATUS_POSTPONE_FEW_BYTES = 0x41, 1600 TX_STATUS_POSTPONE_QUIET_PERIOD = 0x43, 1601 TX_STATUS_POSTPONE_CALC_TTAK = 0x44, 1602 /* abort TX */ 1603 TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY = 0x81, 1604 TX_STATUS_FAIL_SHORT_LIMIT = 0x82, 1605 TX_STATUS_FAIL_LONG_LIMIT = 0x83, 1606 TX_STATUS_FAIL_FIFO_UNDERRUN = 0x84, 1607 TX_STATUS_FAIL_DRAIN_FLOW = 0x85, 1608 TX_STATUS_FAIL_RFKILL_FLUSH = 0x86, 1609 TX_STATUS_FAIL_LIFE_EXPIRE = 0x87, 1610 TX_STATUS_FAIL_DEST_PS = 0x88, 1611 TX_STATUS_FAIL_HOST_ABORTED = 0x89, 1612 TX_STATUS_FAIL_BT_RETRY = 0x8a, 1613 TX_STATUS_FAIL_STA_INVALID = 0x8b, 1614 TX_STATUS_FAIL_FRAG_DROPPED = 0x8c, 1615 TX_STATUS_FAIL_TID_DISABLE = 0x8d, 1616 TX_STATUS_FAIL_FIFO_FLUSHED = 0x8e, 1617 TX_STATUS_FAIL_INSUFFICIENT_CF_POLL = 0x8f, 1618 TX_STATUS_FAIL_PASSIVE_NO_RX = 0x90, 1619 TX_STATUS_FAIL_NO_BEACON_ON_RADAR = 0x91, 1620}; 1621 1622#define TX_PACKET_MODE_REGULAR 0x0000 1623#define TX_PACKET_MODE_BURST_SEQ 0x0100 1624#define TX_PACKET_MODE_BURST_FIRST 0x0200 1625 1626enum { 1627 TX_POWER_PA_NOT_ACTIVE = 0x0, 1628}; 1629 1630enum { 1631 TX_STATUS_MSK = 0x000000ff, /* bits 0:7 */ 1632 TX_STATUS_DELAY_MSK = 0x00000040, 1633 TX_STATUS_ABORT_MSK = 0x00000080, 1634 TX_PACKET_MODE_MSK = 0x0000ff00, /* bits 8:15 */ 1635 TX_FIFO_NUMBER_MSK = 0x00070000, /* bits 16:18 */ 1636 TX_RESERVED = 0x00780000, /* bits 19:22 */ 1637 TX_POWER_PA_DETECT_MSK = 0x7f800000, /* bits 23:30 */ 1638 TX_ABORT_REQUIRED_MSK = 0x80000000, /* bits 31:31 */ 1639}; 1640 1641/* ******************************* 1642 * TX aggregation status 1643 ******************************* */ 1644 1645enum { 1646 AGG_TX_STATE_TRANSMITTED = 0x00, 1647 AGG_TX_STATE_UNDERRUN_MSK = 0x01, 1648 AGG_TX_STATE_FEW_BYTES_MSK = 0x04, 1649 AGG_TX_STATE_ABORT_MSK = 0x08, 1650 AGG_TX_STATE_LAST_SENT_TTL_MSK = 0x10, 1651 AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK = 0x20, 1652 AGG_TX_STATE_SCD_QUERY_MSK = 0x80, 1653 AGG_TX_STATE_TEST_BAD_CRC32_MSK = 0x100, 1654 AGG_TX_STATE_RESPONSE_MSK = 0x1ff, 1655 AGG_TX_STATE_DUMP_TX_MSK = 0x200, 1656 AGG_TX_STATE_DELAY_TX_MSK = 0x400 1657}; 1658 1659#define AGG_TX_STATUS_MSK 0x00000fff /* bits 0:11 */ 1660#define AGG_TX_TRY_MSK 0x0000f000 /* bits 12:15 */ 1661 1662#define AGG_TX_STATE_LAST_SENT_MSK (AGG_TX_STATE_LAST_SENT_TTL_MSK | \ 1663 AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK) 1664 1665/* # tx attempts for first frame in aggregation */ 1666#define AGG_TX_STATE_TRY_CNT_POS 12 1667#define AGG_TX_STATE_TRY_CNT_MSK 0xf000 1668 1669/* Command ID and sequence number of Tx command for this frame */ 1670#define AGG_TX_STATE_SEQ_NUM_POS 16 1671#define AGG_TX_STATE_SEQ_NUM_MSK 0xffff0000 1672 1673/* 1674 * REPLY_TX = 0x1c (response) 1675 * 1676 * This response may be in one of two slightly different formats, indicated 1677 * by the frame_count field: 1678 * 1679 * 1) No aggregation (frame_count == 1). This reports Tx results for 1680 * a single frame. Multiple attempts, at various bit rates, may have 1681 * been made for this frame. 1682 * 1683 * 2) Aggregation (frame_count > 1). This reports Tx results for 1684 * 2 or more frames that used block-acknowledge. All frames were 1685 * transmitted at same rate. Rate scaling may have been used if first 1686 * frame in this new agg block failed in previous agg block(s). 1687 * 1688 * Note that, for aggregation, ACK (block-ack) status is not delivered here; 1689 * block-ack has not been received by the time the 4965 device records 1690 * this status. 1691 * This status relates to reasons the tx might have been blocked or aborted 1692 * within the sending station (this 4965 device), rather than whether it was 1693 * received successfully by the destination station. 1694 */ 1695struct agg_tx_status { 1696 __le16 status; 1697 __le16 sequence; 1698} __packed; 1699 1700struct iwl4965_tx_resp { 1701 u8 frame_count; /* 1 no aggregation, >1 aggregation */ 1702 u8 bt_kill_count; /* # blocked by bluetooth (unused for agg) */ 1703 u8 failure_rts; /* # failures due to unsuccessful RTS */ 1704 u8 failure_frame; /* # failures due to no ACK (unused for agg) */ 1705 1706 /* For non-agg: Rate at which frame was successful. 1707 * For agg: Rate at which all frames were transmitted. */ 1708 __le32 rate_n_flags; /* RATE_MCS_* */ 1709 1710 /* For non-agg: RTS + CTS + frame tx attempts time + ACK. 1711 * For agg: RTS + CTS + aggregation tx time + block-ack time. */ 1712 __le16 wireless_media_time; /* uSecs */ 1713 1714 __le16 reserved; 1715 __le32 pa_power1; /* RF power amplifier measurement (not used) */ 1716 __le32 pa_power2; 1717 1718 /* 1719 * For non-agg: frame status TX_STATUS_* 1720 * For agg: status of 1st frame, AGG_TX_STATE_*; other frame status 1721 * fields follow this one, up to frame_count. 1722 * Bit fields: 1723 * 11- 0: AGG_TX_STATE_* status code 1724 * 15-12: Retry count for 1st frame in aggregation (retries 1725 * occur if tx failed for this frame when it was a 1726 * member of a previous aggregation block). If rate 1727 * scaling is used, retry count indicates the rate 1728 * table entry used for all frames in the new agg. 1729 * 31-16: Sequence # for this frame's Tx cmd (not SSN!) 1730 */ 1731 union { 1732 __le32 status; 1733 struct agg_tx_status agg_status[0]; /* for each agg frame */ 1734 } u; 1735} __packed; 1736 1737/* 1738 * REPLY_COMPRESSED_BA = 0xc5 (response only, not a command) 1739 * 1740 * Reports Block-Acknowledge from recipient station 1741 */ 1742struct iwl_compressed_ba_resp { 1743 __le32 sta_addr_lo32; 1744 __le16 sta_addr_hi16; 1745 __le16 reserved; 1746 1747 /* Index of recipient (BA-sending) station in uCode's station table */ 1748 u8 sta_id; 1749 u8 tid; 1750 __le16 seq_ctl; 1751 __le64 bitmap; 1752 __le16 scd_flow; 1753 __le16 scd_ssn; 1754} __packed; 1755 1756/* 1757 * REPLY_TX_PWR_TABLE_CMD = 0x97 (command, has simple generic response) 1758 * 1759 * See details under "TXPOWER" in iwl-4965-hw.h. 1760 */ 1761 1762struct iwl3945_txpowertable_cmd { 1763 u8 band; /* 0: 5 GHz, 1: 2.4 GHz */ 1764 u8 reserved; 1765 __le16 channel; 1766 struct iwl3945_power_per_rate power[IWL_MAX_RATES]; 1767} __packed; 1768 1769struct iwl4965_txpowertable_cmd { 1770 u8 band; /* 0: 5 GHz, 1: 2.4 GHz */ 1771 u8 reserved; 1772 __le16 channel; 1773 struct iwl4965_tx_power_db tx_power; 1774} __packed; 1775 1776 1777/** 1778 * struct iwl3945_rate_scaling_cmd - Rate Scaling Command & Response 1779 * 1780 * REPLY_RATE_SCALE = 0x47 (command, has simple generic response) 1781 * 1782 * NOTE: The table of rates passed to the uCode via the 1783 * RATE_SCALE command sets up the corresponding order of 1784 * rates used for all related commands, including rate 1785 * masks, etc. 1786 * 1787 * For example, if you set 9MB (PLCP 0x0f) as the first 1788 * rate in the rate table, the bit mask for that rate 1789 * when passed through ofdm_basic_rates on the REPLY_RXON 1790 * command would be bit 0 (1 << 0) 1791 */ 1792struct iwl3945_rate_scaling_info { 1793 __le16 rate_n_flags; 1794 u8 try_cnt; 1795 u8 next_rate_index; 1796} __packed; 1797 1798struct iwl3945_rate_scaling_cmd { 1799 u8 table_id; 1800 u8 reserved[3]; 1801 struct iwl3945_rate_scaling_info table[IWL_MAX_RATES]; 1802} __packed; 1803 1804 1805/*RS_NEW_API: only TLC_RTS remains and moved to bit 0 */ 1806#define LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK (1 << 0) 1807 1808/* # of EDCA prioritized tx fifos */ 1809#define LINK_QUAL_AC_NUM AC_NUM 1810 1811/* # entries in rate scale table to support Tx retries */ 1812#define LINK_QUAL_MAX_RETRY_NUM 16 1813 1814/* Tx antenna selection values */ 1815#define LINK_QUAL_ANT_A_MSK (1 << 0) 1816#define LINK_QUAL_ANT_B_MSK (1 << 1) 1817#define LINK_QUAL_ANT_MSK (LINK_QUAL_ANT_A_MSK|LINK_QUAL_ANT_B_MSK) 1818 1819 1820/** 1821 * struct iwl_link_qual_general_params 1822 * 1823 * Used in REPLY_TX_LINK_QUALITY_CMD 1824 */ 1825struct iwl_link_qual_general_params { 1826 u8 flags; 1827 1828 /* No entries at or above this (driver chosen) index contain MIMO */ 1829 u8 mimo_delimiter; 1830 1831 /* Best single antenna to use for single stream (legacy, SISO). */ 1832 u8 single_stream_ant_msk; /* LINK_QUAL_ANT_* */ 1833 1834 /* Best antennas to use for MIMO (unused for 4965, assumes both). */ 1835 u8 dual_stream_ant_msk; /* LINK_QUAL_ANT_* */ 1836 1837 /* 1838 * If driver needs to use different initial rates for different 1839 * EDCA QOS access categories (as implemented by tx fifos 0-3), 1840 * this table will set that up, by indicating the indexes in the 1841 * rs_table[LINK_QUAL_MAX_RETRY_NUM] rate table at which to start. 1842 * Otherwise, driver should set all entries to 0. 1843 * 1844 * Entry usage: 1845 * 0 = Background, 1 = Best Effort (normal), 2 = Video, 3 = Voice 1846 * TX FIFOs above 3 use same value (typically 0) as TX FIFO 3. 1847 */ 1848 u8 start_rate_index[LINK_QUAL_AC_NUM]; 1849} __packed; 1850 1851#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) /* 4 milliseconds */ 1852#define LINK_QUAL_AGG_TIME_LIMIT_MAX (8000) 1853#define LINK_QUAL_AGG_TIME_LIMIT_MIN (100) 1854 1855#define LINK_QUAL_AGG_DISABLE_START_DEF (3) 1856#define LINK_QUAL_AGG_DISABLE_START_MAX (255) 1857#define LINK_QUAL_AGG_DISABLE_START_MIN (0) 1858 1859#define LINK_QUAL_AGG_FRAME_LIMIT_DEF (31) 1860#define LINK_QUAL_AGG_FRAME_LIMIT_MAX (63) 1861#define LINK_QUAL_AGG_FRAME_LIMIT_MIN (0) 1862 1863/** 1864 * struct iwl_link_qual_agg_params 1865 * 1866 * Used in REPLY_TX_LINK_QUALITY_CMD 1867 */ 1868struct iwl_link_qual_agg_params { 1869 1870 /* 1871 *Maximum number of uSec in aggregation. 1872 * default set to 4000 (4 milliseconds) if not configured in .cfg 1873 */ 1874 __le16 agg_time_limit; 1875 1876 /* 1877 * Number of Tx retries allowed for a frame, before that frame will 1878 * no longer be considered for the start of an aggregation sequence 1879 * (scheduler will then try to tx it as single frame). 1880 * Driver should set this to 3. 1881 */ 1882 u8 agg_dis_start_th; 1883 1884 /* 1885 * Maximum number of frames in aggregation. 1886 * 0 = no limit (default). 1 = no aggregation. 1887 * Other values = max # frames in aggregation. 1888 */ 1889 u8 agg_frame_cnt_limit; 1890 1891 __le32 reserved; 1892} __packed; 1893 1894/* 1895 * REPLY_TX_LINK_QUALITY_CMD = 0x4e (command, has simple generic response) 1896 * 1897 * For 4965 devices only; 3945 uses REPLY_RATE_SCALE. 1898 * 1899 * Each station in the 4965 device's internal station table has its own table 1900 * of 16 1901 * Tx rates and modulation modes (e.g. legacy/SISO/MIMO) for retrying Tx when 1902 * an ACK is not received. This command replaces the entire table for 1903 * one station. 1904 * 1905 * NOTE: Station must already be in 4965 device's station table. 1906 * Use REPLY_ADD_STA. 1907 * 1908 * The rate scaling procedures described below work well. Of course, other 1909 * procedures are possible, and may work better for particular environments. 1910 * 1911 * 1912 * FILLING THE RATE TABLE 1913 * 1914 * Given a particular initial rate and mode, as determined by the rate 1915 * scaling algorithm described below, the Linux driver uses the following 1916 * formula to fill the rs_table[LINK_QUAL_MAX_RETRY_NUM] rate table in the 1917 * Link Quality command: 1918 * 1919 * 1920 * 1) If using High-throughput (HT) (SISO or MIMO) initial rate: 1921 * a) Use this same initial rate for first 3 entries. 1922 * b) Find next lower available rate using same mode (SISO or MIMO), 1923 * use for next 3 entries. If no lower rate available, switch to 1924 * legacy mode (no HT40 channel, no MIMO, no short guard interval). 1925 * c) If using MIMO, set command's mimo_delimiter to number of entries 1926 * using MIMO (3 or 6). 1927 * d) After trying 2 HT rates, switch to legacy mode (no HT40 channel, 1928 * no MIMO, no short guard interval), at the next lower bit rate 1929 * (e.g. if second HT bit rate was 54, try 48 legacy), and follow 1930 * legacy procedure for remaining table entries. 1931 * 1932 * 2) If using legacy initial rate: 1933 * a) Use the initial rate for only one entry. 1934 * b) For each following entry, reduce the rate to next lower available 1935 * rate, until reaching the lowest available rate. 1936 * c) When reducing rate, also switch antenna selection. 1937 * d) Once lowest available rate is reached, repeat this rate until 1938 * rate table is filled (16 entries), switching antenna each entry. 1939 * 1940 * 1941 * ACCUMULATING HISTORY 1942 * 1943 * The rate scaling algorithm for 4965 devices, as implemented in Linux driver, 1944 * uses two sets of frame Tx success history: One for the current/active 1945 * modulation mode, and one for a speculative/search mode that is being 1946 * attempted. If the speculative mode turns out to be more effective (i.e. 1947 * actual transfer rate is better), then the driver continues to use the 1948 * speculative mode as the new current active mode. 1949 * 1950 * Each history set contains, separately for each possible rate, data for a 1951 * sliding window of the 62 most recent tx attempts at that rate. The data 1952 * includes a shifting bitmap of success(1)/failure(0), and sums of successful 1953 * and attempted frames, from which the driver can additionally calculate a 1954 * success ratio (success / attempted) and number of failures 1955 * (attempted - success), and control the size of the window (attempted). 1956 * The driver uses the bit map to remove successes from the success sum, as 1957 * the oldest tx attempts fall out of the window. 1958 * 1959 * When the 4965 device makes multiple tx attempts for a given frame, each 1960 * attempt might be at a different rate, and have different modulation 1961 * characteristics (e.g. antenna, fat channel, short guard interval), as set 1962 * up in the rate scaling table in the Link Quality command. The driver must 1963 * determine which rate table entry was used for each tx attempt, to determine 1964 * which rate-specific history to update, and record only those attempts that 1965 * match the modulation characteristics of the history set. 1966 * 1967 * When using block-ack (aggregation), all frames are transmitted at the same 1968 * rate, since there is no per-attempt acknowledgment from the destination 1969 * station. The Tx response struct iwl_tx_resp indicates the Tx rate in 1970 * rate_n_flags field. After receiving a block-ack, the driver can update 1971 * history for the entire block all at once. 1972 * 1973 * 1974 * FINDING BEST STARTING RATE: 1975 * 1976 * When working with a selected initial modulation mode (see below), the 1977 * driver attempts to find a best initial rate. The initial rate is the 1978 * first entry in the Link Quality command's rate table. 1979 * 1980 * 1) Calculate actual throughput (success ratio * expected throughput, see 1981 * table below) for current initial rate. Do this only if enough frames 1982 * have been attempted to make the value meaningful: at least 6 failed 1983 * tx attempts, or at least 8 successes. If not enough, don't try rate 1984 * scaling yet. 1985 * 1986 * 2) Find available rates adjacent to current initial rate. Available means: 1987 * a) supported by hardware && 1988 * b) supported by association && 1989 * c) within any constraints selected by user 1990 * 1991 * 3) Gather measured throughputs for adjacent rates. These might not have 1992 * enough history to calculate a throughput. That's okay, we might try 1993 * using one of them anyway! 1994 * 1995 * 4) Try decreasing rate if, for current rate: 1996 * a) success ratio is < 15% || 1997 * b) lower adjacent rate has better measured throughput || 1998 * c) higher adjacent rate has worse throughput, and lower is unmeasured 1999 * 2000 * As a sanity check, if decrease was determined above, leave rate
2001 * unchanged if: 2002 * a) lower rate unavailable 2003 * b) success ratio at current rate > 85% (very good) 2004 * c) current measured throughput is better than expected throughput 2005 * of lower rate (under perfect 100% tx conditions, see table below) 2006 * 2007 * 5) Try increasing rate if, for current rate: 2008 * a) success ratio is < 15% || 2009 * b) both adjacent rates' throughputs are unmeasured (try it!) || 2010 * b) higher adjacent rate has better measured throughput || 2011 * c) lower adjacent rate has worse throughput, and higher is unmeasured 2012 * 2013 * As a sanity check, if increase was determined above, leave rate 2014 * unchanged if: 2015 * a) success ratio at current rate < 70%. This is not particularly 2016 * good performance; higher rate is sure to have poorer success. 2017 * 2018 * 6) Re-evaluate the rate after each tx frame. If working with block- 2019 * acknowledge, history and statistics may be calculated for the entire 2020 * block (including prior history that fits within the history windows), 2021 * before re-evaluation. 2022 * 2023 * FINDING BEST STARTING MODULATION MODE: 2024 * 2025 * After working with a modulation mode for a "while" (and doing rate scaling), 2026 * the driver searches for a new initial mode in an attempt to improve 2027 * throughput. The "while" is measured by numbers of attempted frames: 2028 * 2029 * For legacy mode, search for new mode after: 2030 * 480 successful frames, or 160 failed frames 2031 * For high-throughput modes (SISO or MIMO), search for new mode after: 2032 * 4500 successful frames, or 400 failed frames 2033 * 2034 * Mode switch possibilities are (3 for each mode): 2035 * 2036 * For legacy: 2037 * Change antenna, try SISO (if HT association), try MIMO (if HT association) 2038 * For SISO: 2039 * Change antenna, try MIMO, try shortened guard interval (SGI) 2040 * For MIMO: 2041 * Try SISO antenna A, SISO antenna B, try shortened guard interval (SGI) 2042 * 2043 * When trying a new mode, use the same bit rate as the old/current mode when 2044 * trying antenna switches and shortened guard interval. When switching to 2045 * SISO from MIMO or legacy, or to MIMO from SISO or legacy, use a rate 2046 * for which the expected throughput (under perfect conditions) is about the 2047 * same or slightly better than the actual measured throughput delivered by 2048 * the old/current mode. 2049 * 2050 * Actual throughput can be estimated by multiplying the expected throughput 2051 * by the success ratio (successful / attempted tx frames). Frame size is 2052 * not considered in this calculation; it assumes that frame size will average 2053 * out to be fairly consistent over several samples. The following are 2054 * metric values for expected throughput assuming 100% success ratio. 2055 * Only G band has support for CCK rates: 2056 * 2057 * RATE: 1 2 5 11 6 9 12 18 24 36 48 54 60 2058 * 2059 * G: 7 13 35 58 40 57 72 98 121 154 177 186 186 2060 * A: 0 0 0 0 40 57 72 98 121 154 177 186 186 2061 * SISO 20MHz: 0 0 0 0 42 42 76 102 124 159 183 193 202 2062 * SGI SISO 20MHz: 0 0 0 0 46 46 82 110 132 168 192 202 211 2063 * MIMO 20MHz: 0 0 0 0 74 74 123 155 179 214 236 244 251 2064 * SGI MIMO 20MHz: 0 0 0 0 81 81 131 164 188 222 243 251 257 2065 * SISO 40MHz: 0 0 0 0 77 77 127 160 184 220 242 250 257 2066 * SGI SISO 40MHz: 0 0 0 0 83 83 135 169 193 229 250 257 264 2067 * MIMO 40MHz: 0 0 0 0 123 123 182 214 235 264 279 285 289 2068 * SGI MIMO 40MHz: 0 0 0 0 131 131 191 222 242 270 284 289 293 2069 * 2070 * After the new mode has been tried for a short while (minimum of 6 failed 2071 * frames or 8 successful frames), compare success ratio and actual throughput 2072 * estimate of the new mode with the old. If either is better with the new 2073 * mode, continue to use the new mode. 2074 * 2075 * Continue comparing modes until all 3 possibilities have been tried. 2076 * If moving from legacy to HT, try all 3 possibilities from the new HT 2077 * mode. After trying all 3, a best mode is found. Continue to use this mode 2078 * for the longer "while" described above (e.g. 480 successful frames for 2079 * legacy), and then repeat the search process. 2080 * 2081 */ 2082struct iwl_link_quality_cmd { 2083 2084 /* Index of destination/recipient station in uCode's station table */ 2085 u8 sta_id; 2086 u8 reserved1; 2087 __le16 control; /* not used */ 2088 struct iwl_link_qual_general_params general_params; 2089 struct iwl_link_qual_agg_params agg_params; 2090 2091 /* 2092 * Rate info; when using rate-scaling, Tx command's initial_rate_index 2093 * specifies 1st Tx rate attempted, via index into this table. 2094 * 4965 devices works its way through table when retrying Tx. 2095 */ 2096 struct { 2097 __le32 rate_n_flags; /* RATE_MCS_*, IWL_RATE_* */ 2098 } rs_table[LINK_QUAL_MAX_RETRY_NUM]; 2099 __le32 reserved2; 2100} __packed; 2101 2102/* 2103 * BT configuration enable flags: 2104 * bit 0 - 1: BT channel announcement enabled 2105 * 0: disable 2106 * bit 1 - 1: priority of BT device enabled 2107 * 0: disable 2108 */ 2109#define BT_COEX_DISABLE (0x0) 2110#define BT_ENABLE_CHANNEL_ANNOUNCE BIT(0) 2111#define BT_ENABLE_PRIORITY BIT(1) 2112 2113#define BT_COEX_ENABLE (BT_ENABLE_CHANNEL_ANNOUNCE | BT_ENABLE_PRIORITY) 2114 2115#define BT_LEAD_TIME_DEF (0x1E) 2116 2117#define BT_MAX_KILL_DEF (0x5) 2118 2119/* 2120 * REPLY_BT_CONFIG = 0x9b (command, has simple generic response) 2121 * 2122 * 3945 and 4965 devices support hardware handshake with Bluetooth device on 2123 * same platform. Bluetooth device alerts wireless device when it will Tx; 2124 * wireless device can delay or kill its own Tx to accommodate. 2125 */ 2126struct iwl_bt_cmd { 2127 u8 flags; 2128 u8 lead_time; 2129 u8 max_kill; 2130 u8 reserved; 2131 __le32 kill_ack_mask; 2132 __le32 kill_cts_mask; 2133} __packed; 2134 2135 2136/****************************************************************************** 2137 * (6) 2138 * Spectrum Management (802.11h) Commands, Responses, Notifications: 2139 * 2140 *****************************************************************************/ 2141 2142/* 2143 * Spectrum Management 2144 */ 2145#define MEASUREMENT_FILTER_FLAG (RXON_FILTER_PROMISC_MSK | \ 2146 RXON_FILTER_CTL2HOST_MSK | \ 2147 RXON_FILTER_ACCEPT_GRP_MSK | \ 2148 RXON_FILTER_DIS_DECRYPT_MSK | \ 2149 RXON_FILTER_DIS_GRP_DECRYPT_MSK | \ 2150 RXON_FILTER_ASSOC_MSK | \ 2151 RXON_FILTER_BCON_AWARE_MSK) 2152 2153struct iwl_measure_channel { 2154 __le32 duration; /* measurement duration in extended beacon 2155 * format */ 2156 u8 channel; /* channel to measure */ 2157 u8 type; /* see enum iwl_measure_type */ 2158 __le16 reserved; 2159} __packed; 2160 2161/* 2162 * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (command) 2163 */ 2164struct iwl_spectrum_cmd { 2165 __le16 len; /* number of bytes starting from token */ 2166 u8 token; /* token id */ 2167 u8 id; /* measurement id -- 0 or 1 */ 2168 u8 origin; /* 0 = TGh, 1 = other, 2 = TGk */ 2169 u8 periodic; /* 1 = periodic */ 2170 __le16 path_loss_timeout; 2171 __le32 start_time; /* start time in extended beacon format */ 2172 __le32 reserved2; 2173 __le32 flags; /* rxon flags */ 2174 __le32 filter_flags; /* rxon filter flags */ 2175 __le16 channel_count; /* minimum 1, maximum 10 */ 2176 __le16 reserved3; 2177 struct iwl_measure_channel channels[10]; 2178} __packed; 2179 2180/* 2181 * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (response) 2182 */ 2183struct iwl_spectrum_resp { 2184 u8 token; 2185 u8 id; /* id of the prior command replaced, or 0xff */ 2186 __le16 status; /* 0 - command will be handled 2187 * 1 - cannot handle (conflicts with another 2188 * measurement) */ 2189} __packed; 2190 2191enum iwl_measurement_state { 2192 IWL_MEASUREMENT_START = 0, 2193 IWL_MEASUREMENT_STOP = 1, 2194}; 2195 2196enum iwl_measurement_status { 2197 IWL_MEASUREMENT_OK = 0, 2198 IWL_MEASUREMENT_CONCURRENT = 1, 2199 IWL_MEASUREMENT_CSA_CONFLICT = 2, 2200 IWL_MEASUREMENT_TGH_CONFLICT = 3, 2201 /* 4-5 reserved */ 2202 IWL_MEASUREMENT_STOPPED = 6, 2203 IWL_MEASUREMENT_TIMEOUT = 7, 2204 IWL_MEASUREMENT_PERIODIC_FAILED = 8, 2205}; 2206 2207#define NUM_ELEMENTS_IN_HISTOGRAM 8 2208 2209struct iwl_measurement_histogram { 2210 __le32 ofdm[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 0.8usec counts */ 2211 __le32 cck[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 1usec counts */ 2212} __packed; 2213 2214/* clear channel availability counters */ 2215struct iwl_measurement_cca_counters { 2216 __le32 ofdm; 2217 __le32 cck; 2218} __packed; 2219 2220enum iwl_measure_type { 2221 IWL_MEASURE_BASIC = (1 << 0), 2222 IWL_MEASURE_CHANNEL_LOAD = (1 << 1), 2223 IWL_MEASURE_HISTOGRAM_RPI = (1 << 2), 2224 IWL_MEASURE_HISTOGRAM_NOISE = (1 << 3), 2225 IWL_MEASURE_FRAME = (1 << 4), 2226 /* bits 5:6 are reserved */ 2227 IWL_MEASURE_IDLE = (1 << 7), 2228}; 2229 2230/* 2231 * SPECTRUM_MEASURE_NOTIFICATION = 0x75 (notification only, not a command) 2232 */ 2233struct iwl_spectrum_notification { 2234 u8 id; /* measurement id -- 0 or 1 */ 2235 u8 token; 2236 u8 channel_index; /* index in measurement channel list */ 2237 u8 state; /* 0 - start, 1 - stop */ 2238 __le32 start_time; /* lower 32-bits of TSF */ 2239 u8 band; /* 0 - 5.2GHz, 1 - 2.4GHz */ 2240 u8 channel; 2241 u8 type; /* see enum iwl_measurement_type */ 2242 u8 reserved1; 2243 /* NOTE: cca_ofdm, cca_cck, basic_type, and histogram are only only 2244 * valid if applicable for measurement type requested. */ 2245 __le32 cca_ofdm; /* cca fraction time in 40Mhz clock periods */ 2246 __le32 cca_cck; /* cca fraction time in 44Mhz clock periods */ 2247 __le32 cca_time; /* channel load time in usecs */ 2248 u8 basic_type; /* 0 - bss, 1 - ofdm preamble, 2 - 2249 * unidentified */ 2250 u8 reserved2[3]; 2251 struct iwl_measurement_histogram histogram; 2252 __le32 stop_time; /* lower 32-bits of TSF */ 2253 __le32 status; /* see iwl_measurement_status */ 2254} __packed; 2255 2256/****************************************************************************** 2257 * (7) 2258 * Power Management Commands, Responses, Notifications: 2259 * 2260 *****************************************************************************/ 2261 2262/** 2263 * struct iwl_powertable_cmd - Power Table Command 2264 * @flags: See below: 2265 * 2266 * POWER_TABLE_CMD = 0x77 (command, has simple generic response) 2267 * 2268 * PM allow: 2269 * bit 0 - '0' Driver not allow power management 2270 * '1' Driver allow PM (use rest of parameters) 2271 * 2272 * uCode send sleep notifications: 2273 * bit 1 - '0' Don't send sleep notification 2274 * '1' send sleep notification (SEND_PM_NOTIFICATION) 2275 * 2276 * Sleep over DTIM 2277 * bit 2 - '0' PM have to walk up every DTIM 2278 * '1' PM could sleep over DTIM till listen Interval. 2279 * 2280 * PCI power managed 2281 * bit 3 - '0' (PCI_CFG_LINK_CTRL & 0x1) 2282 * '1' !(PCI_CFG_LINK_CTRL & 0x1) 2283 * 2284 * Fast PD 2285 * bit 4 - '1' Put radio to sleep when receiving frame for others 2286 * 2287 * Force sleep Modes 2288 * bit 31/30- '00' use both mac/xtal sleeps 2289 * '01' force Mac sleep 2290 * '10' force xtal sleep 2291 * '11' Illegal set 2292 * 2293 * NOTE: if sleep_interval[SLEEP_INTRVL_TABLE_SIZE-1] > DTIM period then 2294 * ucode assume sleep over DTIM is allowed and we don't need to wake up 2295 * for every DTIM. 2296 */ 2297#define IWL_POWER_VEC_SIZE 5 2298 2299#define IWL_POWER_DRIVER_ALLOW_SLEEP_MSK cpu_to_le16(BIT(0)) 2300#define IWL_POWER_POWER_SAVE_ENA_MSK cpu_to_le16(BIT(0)) 2301#define IWL_POWER_POWER_MANAGEMENT_ENA_MSK cpu_to_le16(BIT(1)) 2302#define IWL_POWER_SLEEP_OVER_DTIM_MSK cpu_to_le16(BIT(2)) 2303#define IWL_POWER_PCI_PM_MSK cpu_to_le16(BIT(3)) 2304#define IWL_POWER_FAST_PD cpu_to_le16(BIT(4)) 2305#define IWL_POWER_BEACON_FILTERING cpu_to_le16(BIT(5)) 2306#define IWL_POWER_SHADOW_REG_ENA cpu_to_le16(BIT(6)) 2307#define IWL_POWER_CT_KILL_SET cpu_to_le16(BIT(7)) 2308 2309struct iwl3945_powertable_cmd { 2310 __le16 flags; 2311 u8 reserved[2]; 2312 __le32 rx_data_timeout; 2313 __le32 tx_data_timeout; 2314 __le32 sleep_interval[IWL_POWER_VEC_SIZE]; 2315} __packed; 2316 2317struct iwl_powertable_cmd { 2318 __le16 flags; 2319 u8 keep_alive_seconds; /* 3945 reserved */ 2320 u8 debug_flags; /* 3945 reserved */ 2321 __le32 rx_data_timeout; 2322 __le32 tx_data_timeout; 2323 __le32 sleep_interval[IWL_POWER_VEC_SIZE]; 2324 __le32 keep_alive_beacons; 2325} __packed; 2326 2327/* 2328 * PM_SLEEP_NOTIFICATION = 0x7A (notification only, not a command) 2329 * all devices identical. 2330 */ 2331struct iwl_sleep_notification { 2332 u8 pm_sleep_mode; 2333 u8 pm_wakeup_src; 2334 __le16 reserved; 2335 __le32 sleep_time; 2336 __le32 tsf_low; 2337 __le32 bcon_timer; 2338} __packed; 2339 2340/* Sleep states. all devices identical. */ 2341enum { 2342 IWL_PM_NO_SLEEP = 0, 2343 IWL_PM_SLP_MAC = 1, 2344 IWL_PM_SLP_FULL_MAC_UNASSOCIATE = 2, 2345 IWL_PM_SLP_FULL_MAC_CARD_STATE = 3, 2346 IWL_PM_SLP_PHY = 4, 2347 IWL_PM_SLP_REPENT = 5, 2348 IWL_PM_WAKEUP_BY_TIMER = 6, 2349 IWL_PM_WAKEUP_BY_DRIVER = 7, 2350 IWL_PM_WAKEUP_BY_RFKILL = 8, 2351 /* 3 reserved */ 2352 IWL_PM_NUM_OF_MODES = 12, 2353}; 2354 2355/* 2356 * CARD_STATE_NOTIFICATION = 0xa1 (notification only, not a command) 2357 */ 2358struct iwl_card_state_notif { 2359 __le32 flags; 2360} __packed; 2361 2362#define HW_CARD_DISABLED 0x01 2363#define SW_CARD_DISABLED 0x02 2364#define CT_CARD_DISABLED 0x04 2365#define RXON_CARD_DISABLED 0x10 2366 2367struct iwl_ct_kill_config { 2368 __le32 reserved; 2369 __le32 critical_temperature_M; 2370 __le32 critical_temperature_R; 2371} __packed; 2372 2373/****************************************************************************** 2374 * (8) 2375 * Scan Commands, Responses, Notifications: 2376 * 2377 *****************************************************************************/ 2378 2379#define SCAN_CHANNEL_TYPE_PASSIVE cpu_to_le32(0) 2380#define SCAN_CHANNEL_TYPE_ACTIVE cpu_to_le32(1) 2381 2382/** 2383 * struct iwl_scan_channel - entry in REPLY_SCAN_CMD channel table 2384 * 2385 * One for each channel in the scan list. 2386 * Each channel can independently select: 2387 * 1) SSID for directed active scans 2388 * 2) Txpower setting (for rate specified within Tx command) 2389 * 3) How long to stay on-channel (behavior may be modified by quiet_time, 2390 * quiet_plcp_th, good_CRC_th) 2391 * 2392 * To avoid uCode errors, make sure the following are true (see comments 2393 * under struct iwl_scan_cmd about max_out_time and quiet_time): 2394 * 1) If using passive_dwell (i.e. passive_dwell != 0): 2395 * active_dwell <= passive_dwell (< max_out_time if max_out_time != 0) 2396 * 2) quiet_time <= active_dwell 2397 * 3) If restricting off-channel time (i.e. max_out_time !=0): 2398 * passive_dwell < max_out_time 2399 * active_dwell < max_out_time 2400 */ 2401struct iwl3945_scan_channel { 2402 /* 2403 * type is defined as: 2404 * 0:0 1 = active, 0 = passive 2405 * 1:4 SSID direct bit map; if a bit is set, then corresponding 2406 * SSID IE is transmitted in probe request. 2407 * 5:7 reserved 2408 */ 2409 u8 type; 2410 u8 channel; /* band is selected by iwl3945_scan_cmd "flags" field */ 2411 struct iwl3945_tx_power tpc; 2412 __le16 active_dwell; /* in 1024-uSec TU (time units), typ 5-50 */ 2413 __le16 passive_dwell; /* in 1024-uSec TU (time units), typ 20-500 */ 2414} __packed; 2415 2416/* set number of direct probes u8 type */ 2417#define IWL39_SCAN_PROBE_MASK(n) ((BIT(n) | (BIT(n) - BIT(1)))) 2418 2419struct iwl_scan_channel { 2420 /* 2421 * type is defined as: 2422 * 0:0 1 = active, 0 = passive 2423 * 1:20 SSID direct bit map; if a bit is set, then corresponding 2424 * SSID IE is transmitted in probe request. 2425 * 21:31 reserved 2426 */ 2427 __le32 type; 2428 __le16 channel; /* band is selected by iwl_scan_cmd "flags" field */ 2429 u8 tx_gain; /* gain for analog radio */ 2430 u8 dsp_atten; /* gain for DSP */ 2431 __le16 active_dwell; /* in 1024-uSec TU (time units), typ 5-50 */ 2432 __le16 passive_dwell; /* in 1024-uSec TU (time units), typ 20-500 */ 2433} __packed; 2434 2435/* set number of direct probes __le32 type */ 2436#define IWL_SCAN_PROBE_MASK(n) cpu_to_le32((BIT(n) | (BIT(n) - BIT(1)))) 2437 2438/** 2439 * struct iwl_ssid_ie - directed scan network information element 2440 * 2441 * Up to 20 of these may appear in REPLY_SCAN_CMD (Note: Only 4 are in 2442 * 3945 SCAN api), selected by "type" bit field in struct iwl_scan_channel; 2443 * each channel may select different ssids from among the 20 (4) entries. 2444 * SSID IEs get transmitted in reverse order of entry. 2445 */ 2446struct iwl_ssid_ie { 2447 u8 id; 2448 u8 len; 2449 u8 ssid[32]; 2450} __packed; 2451 2452#define PROBE_OPTION_MAX_3945 4 2453#define PROBE_OPTION_MAX 20 2454#define TX_CMD_LIFE_TIME_INFINITE cpu_to_le32(0xFFFFFFFF) 2455#define IWL_GOOD_CRC_TH_DISABLED 0 2456#define IWL_GOOD_CRC_TH_DEFAULT cpu_to_le16(1) 2457#define IWL_GOOD_CRC_TH_NEVER cpu_to_le16(0xffff) 2458#define IWL_MAX_SCAN_SIZE 1024 2459#define IWL_MAX_CMD_SIZE 4096 2460 2461/* 2462 * REPLY_SCAN_CMD = 0x80 (command) 2463 * 2464 * The hardware scan command is very powerful; the driver can set it up to 2465 * maintain (relatively) normal network traffic while doing a scan in the 2466 * background. The max_out_time and suspend_time control the ratio of how 2467 * long the device stays on an associated network channel ("service channel") 2468 * vs. how long it's away from the service channel, i.e. tuned to other channels 2469 * for scanning. 2470 * 2471 * max_out_time is the max time off-channel (in usec), and suspend_time 2472 * is how long (in "extended beacon" format) that the scan is "suspended" 2473 * after returning to the service channel. That is, suspend_time is the 2474 * time that we stay on the service channel, doing normal work, between 2475 * scan segments. The driver may set these parameters differently to support 2476 * scanning when associated vs. not associated, and light vs. heavy traffic 2477 * loads when associated. 2478 * 2479 * After receiving this command, the device's scan engine does the following; 2480 * 2481 * 1) Sends SCAN_START notification to driver 2482 * 2) Checks to see if it has time to do scan for one channel 2483 * 3) Sends NULL packet, with power-save (PS) bit set to 1, 2484 * to tell AP that we're going off-channel 2485 * 4) Tunes to first channel in scan list, does active or passive scan 2486 * 5) Sends SCAN_RESULT notification to driver 2487 * 6) Checks to see if it has time to do scan on *next* channel in list 2488 * 7) Repeats 4-6 until it no longer has time to scan the next channel 2489 * before max_out_time expires 2490 * 8) Returns to service channel 2491 * 9) Sends NULL packet with PS=0 to tell AP that we're back 2492 * 10) Stays on service channel until suspend_time expires 2493 * 11) Repeats entire process 2-10 until list is complete 2494 * 12) Sends SCAN_COMPLETE notification 2495 * 2496 * For fast, efficient scans, the scan command also has support for staying on 2497 * a channel for just a short time, if doing active scanning and getting no 2498 * responses to the transmitted probe request. This time is controlled by 2499 * quiet_time, and the number of received packets below which a channel is 2500 * considered "quiet" is controlled by quiet_plcp_threshold. 2501 * 2502 * For active scanning on channels that have regulatory restrictions against 2503 * blindly transmitting, the scan can listen before transmitting, to make sure 2504 * that there is already legitimate activity on the channel. If enough 2505 * packets are cleanly received on the channel (controlled by good_CRC_th, 2506 * typical value 1), the scan engine starts transmitting probe requests. 2507 * 2508 * Driver must use separate scan commands for 2.4 vs. 5 GHz bands. 2509 * 2510 * To avoid uCode errors, see timing restrictions described under 2511 * struct iwl_scan_channel. 2512 */ 2513 2514struct iwl3945_scan_cmd { 2515 __le16 len; 2516 u8 reserved0; 2517 u8 channel_count; /* # channels in channel list */ 2518 __le16 quiet_time; /* dwell only this # millisecs on quiet channel 2519 * (only for active scan) */ 2520 __le16 quiet_plcp_th; /* quiet chnl is < this # pkts (typ. 1) */ 2521 __le16 good_CRC_th; /* passive -> active promotion threshold */ 2522 __le16 reserved1; 2523 __le32 max_out_time; /* max usec to be away from associated (service) 2524 * channel */ 2525 __le32 suspend_time; /* pause scan this long (in "extended beacon 2526 * format") when returning to service channel: 2527 * 3945; 31:24 # beacons, 19:0 additional usec, 2528 * 4965; 31:22 # beacons, 21:0 additional usec. 2529 */ 2530 __le32 flags; /* RXON_FLG_* */ 2531 __le32 filter_flags; /* RXON_FILTER_* */ 2532 2533 /* For active scans (set to all-0s for passive scans). 2534 * Does not include payload. Must specify Tx rate; no rate scaling. */ 2535 struct iwl3945_tx_cmd tx_cmd; 2536 2537 /* For directed active scans (set to all-0s otherwise) */ 2538 struct iwl_ssid_ie direct_scan[PROBE_OPTION_MAX_3945]; 2539 2540 /* 2541 * Probe request frame, followed by channel list. 2542 * 2543 * Size of probe request frame is specified by byte count in tx_cmd. 2544 * Channel list follows immediately after probe request frame. 2545 * Number of channels in list is specified by channel_count. 2546 * Each channel in list is of type: 2547 * 2548 * struct iwl3945_scan_channel channels[0]; 2549 * 2550 * NOTE: Only one band of channels can be scanned per pass. You 2551 * must not mix 2.4GHz channels and 5.2GHz channels, and you must wait 2552 * for one scan to complete (i.e. receive SCAN_COMPLETE_NOTIFICATION) 2553 * before requesting another scan. 2554 */ 2555 u8 data[0]; 2556} __packed; 2557 2558struct iwl_scan_cmd { 2559 __le16 len; 2560 u8 reserved0; 2561 u8 channel_count; /* # channels in channel list */ 2562 __le16 quiet_time; /* dwell only this # millisecs on quiet channel 2563 * (only for active scan) */ 2564 __le16 quiet_plcp_th; /* quiet chnl is < this # pkts (typ. 1) */ 2565 __le16 good_CRC_th; /* passive -> active promotion threshold */ 2566 __le16 rx_chain; /* RXON_RX_CHAIN_* */ 2567 __le32 max_out_time; /* max usec to be away from associated (service) 2568 * channel */ 2569 __le32 suspend_time; /* pause scan this long (in "extended beacon 2570 * format") when returning to service chnl: 2571 * 3945; 31:24 # beacons, 19:0 additional usec, 2572 * 4965; 31:22 # beacons, 21:0 additional usec. 2573 */ 2574 __le32 flags; /* RXON_FLG_* */ 2575 __le32 filter_flags; /* RXON_FILTER_* */ 2576 2577 /* For active scans (set to all-0s for passive scans). 2578 * Does not include payload. Must specify Tx rate; no rate scaling. */ 2579 struct iwl_tx_cmd tx_cmd; 2580 2581 /* For directed active scans (set to all-0s otherwise) */ 2582 struct iwl_ssid_ie direct_scan[PROBE_OPTION_MAX]; 2583 2584 /* 2585 * Probe request frame, followed by channel list. 2586 * 2587 * Size of probe request frame is specified by byte count in tx_cmd. 2588 * Channel list follows immediately after probe request frame. 2589 * Number of channels in list is specified by channel_count. 2590 * Each channel in list is of type: 2591 * 2592 * struct iwl_scan_channel channels[0]; 2593 * 2594 * NOTE: Only one band of channels can be scanned per pass. You 2595 * must not mix 2.4GHz channels and 5.2GHz channels, and you must wait 2596 * for one scan to complete (i.e. receive SCAN_COMPLETE_NOTIFICATION) 2597 * before requesting another scan. 2598 */ 2599 u8 data[0]; 2600} __packed; 2601 2602/* Can abort will notify by complete notification with abort status. */ 2603#define CAN_ABORT_STATUS cpu_to_le32(0x1) 2604/* complete notification statuses */ 2605#define ABORT_STATUS 0x2 2606 2607/* 2608 * REPLY_SCAN_CMD = 0x80 (response) 2609 */ 2610struct iwl_scanreq_notification { 2611 __le32 status; /* 1: okay, 2: cannot fulfill request */ 2612} __packed; 2613 2614/* 2615 * SCAN_START_NOTIFICATION = 0x82 (notification only, not a command) 2616 */ 2617struct iwl_scanstart_notification { 2618 __le32 tsf_low; 2619 __le32 tsf_high; 2620 __le32 beacon_timer; 2621 u8 channel; 2622 u8 band; 2623 u8 reserved[2]; 2624 __le32 status; 2625} __packed; 2626 2627#define SCAN_OWNER_STATUS 0x1; 2628#define MEASURE_OWNER_STATUS 0x2; 2629 2630#define IWL_PROBE_STATUS_OK 0 2631#define IWL_PROBE_STATUS_TX_FAILED BIT(0) 2632/* error statuses combined with TX_FAILED */ 2633#define IWL_PROBE_STATUS_FAIL_TTL BIT(1) 2634#define IWL_PROBE_STATUS_FAIL_BT BIT(2) 2635 2636#define NUMBER_OF_STATISTICS 1 /* first __le32 is good CRC */ 2637/* 2638 * SCAN_RESULTS_NOTIFICATION = 0x83 (notification only, not a command) 2639 */ 2640struct iwl_scanresults_notification { 2641 u8 channel; 2642 u8 band; 2643 u8 probe_status; 2644 u8 num_probe_not_sent; /* not enough time to send */ 2645 __le32 tsf_low; 2646 __le32 tsf_high; 2647 __le32 statistics[NUMBER_OF_STATISTICS]; 2648} __packed; 2649 2650/* 2651 * SCAN_COMPLETE_NOTIFICATION = 0x84 (notification only, not a command) 2652 */ 2653struct iwl_scancomplete_notification { 2654 u8 scanned_channels; 2655 u8 status; 2656 u8 last_channel; 2657 __le32 tsf_low; 2658 __le32 tsf_high; 2659} __packed; 2660 2661 2662/****************************************************************************** 2663 * (9) 2664 * IBSS/AP Commands and Notifications: 2665 * 2666 *****************************************************************************/ 2667 2668enum iwl_ibss_manager { 2669 IWL_NOT_IBSS_MANAGER = 0, 2670 IWL_IBSS_MANAGER = 1, 2671}; 2672 2673/* 2674 * BEACON_NOTIFICATION = 0x90 (notification only, not a command) 2675 */ 2676 2677struct iwl3945_beacon_notif { 2678 struct iwl3945_tx_resp beacon_notify_hdr; 2679 __le32 low_tsf; 2680 __le32 high_tsf; 2681 __le32 ibss_mgr_status; 2682} __packed; 2683 2684struct iwl4965_beacon_notif { 2685 struct iwl4965_tx_resp beacon_notify_hdr; 2686 __le32 low_tsf; 2687 __le32 high_tsf; 2688 __le32 ibss_mgr_status; 2689} __packed; 2690 2691/* 2692 * REPLY_TX_BEACON = 0x91 (command, has simple generic response) 2693 */ 2694 2695struct iwl3945_tx_beacon_cmd { 2696 struct iwl3945_tx_cmd tx; 2697 __le16 tim_idx; 2698 u8 tim_size; 2699 u8 reserved1; 2700 struct ieee80211_hdr frame[0]; /* beacon frame */ 2701} __packed; 2702 2703struct iwl_tx_beacon_cmd { 2704 struct iwl_tx_cmd tx; 2705 __le16 tim_idx; 2706 u8 tim_size; 2707 u8 reserved1; 2708 struct ieee80211_hdr frame[0]; /* beacon frame */ 2709} __packed; 2710 2711/****************************************************************************** 2712 * (10) 2713 * Statistics Commands and Notifications: 2714 * 2715 *****************************************************************************/ 2716 2717#define IWL_TEMP_CONVERT 260 2718 2719#define SUP_RATE_11A_MAX_NUM_CHANNELS 8 2720#define SUP_RATE_11B_MAX_NUM_CHANNELS 4 2721#define SUP_RATE_11G_MAX_NUM_CHANNELS 12 2722 2723/* Used for passing to driver number of successes and failures per rate */ 2724struct rate_histogram { 2725 union { 2726 __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS]; 2727 __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS]; 2728 __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS]; 2729 } success; 2730 union { 2731 __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS]; 2732 __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS]; 2733 __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS]; 2734 } failed; 2735} __packed; 2736 2737/* statistics command response */ 2738 2739struct iwl39_statistics_rx_phy { 2740 __le32 ina_cnt; 2741 __le32 fina_cnt; 2742 __le32 plcp_err; 2743 __le32 crc32_err; 2744 __le32 overrun_err; 2745 __le32 early_overrun_err; 2746 __le32 crc32_good; 2747 __le32 false_alarm_cnt; 2748 __le32 fina_sync_err_cnt; 2749 __le32 sfd_timeout; 2750 __le32 fina_timeout; 2751 __le32 unresponded_rts; 2752 __le32 rxe_frame_limit_overrun; 2753 __le32 sent_ack_cnt; 2754 __le32 sent_cts_cnt; 2755} __packed; 2756 2757struct iwl39_statistics_rx_non_phy { 2758 __le32 bogus_cts; /* CTS received when not expecting CTS */ 2759 __le32 bogus_ack; /* ACK received when not expecting ACK */ 2760 __le32 non_bssid_frames; /* number of frames with BSSID that 2761 * doesn't belong to the STA BSSID */ 2762 __le32 filtered_frames; /* count frames that were dumped in the 2763 * filtering process */ 2764 __le32 non_channel_beacons; /* beacons with our bss id but not on 2765 * our serving channel */ 2766} __packed; 2767 2768struct iwl39_statistics_rx { 2769 struct iwl39_statistics_rx_phy ofdm; 2770 struct iwl39_statistics_rx_phy cck; 2771 struct iwl39_statistics_rx_non_phy general; 2772} __packed; 2773 2774struct iwl39_statistics_tx { 2775 __le32 preamble_cnt; 2776 __le32 rx_detected_cnt; 2777 __le32 bt_prio_defer_cnt; 2778 __le32 bt_prio_kill_cnt; 2779 __le32 few_bytes_cnt; 2780 __le32 cts_timeout; 2781 __le32 ack_timeout; 2782 __le32 expected_ack_cnt; 2783 __le32 actual_ack_cnt; 2784} __packed; 2785 2786struct statistics_dbg { 2787 __le32 burst_check; 2788 __le32 burst_count; 2789 __le32 wait_for_silence_timeout_cnt; 2790 __le32 reserved[3]; 2791} __packed; 2792 2793struct iwl39_statistics_div { 2794 __le32 tx_on_a; 2795 __le32 tx_on_b; 2796 __le32 exec_time; 2797 __le32 probe_time; 2798} __packed; 2799 2800struct iwl39_statistics_general { 2801 __le32 temperature; 2802 struct statistics_dbg dbg; 2803 __le32 sleep_time; 2804 __le32 slots_out; 2805 __le32 slots_idle; 2806 __le32 ttl_timestamp; 2807 struct iwl39_statistics_div div; 2808} __packed; 2809 2810struct statistics_rx_phy { 2811 __le32 ina_cnt; 2812 __le32 fina_cnt; 2813 __le32 plcp_err; 2814 __le32 crc32_err; 2815 __le32 overrun_err; 2816 __le32 early_overrun_err; 2817 __le32 crc32_good; 2818 __le32 false_alarm_cnt; 2819 __le32 fina_sync_err_cnt; 2820 __le32 sfd_timeout; 2821 __le32 fina_timeout; 2822 __le32 unresponded_rts; 2823 __le32 rxe_frame_limit_overrun; 2824 __le32 sent_ack_cnt; 2825 __le32 sent_cts_cnt; 2826 __le32 sent_ba_rsp_cnt; 2827 __le32 dsp_self_kill; 2828 __le32 mh_format_err; 2829 __le32 re_acq_main_rssi_sum; 2830 __le32 reserved3; 2831} __packed; 2832 2833struct statistics_rx_ht_phy { 2834 __le32 plcp_err; 2835 __le32 overrun_err; 2836 __le32 early_overrun_err; 2837 __le32 crc32_good; 2838 __le32 crc32_err; 2839 __le32 mh_format_err; 2840 __le32 agg_crc32_good; 2841 __le32 agg_mpdu_cnt; 2842 __le32 agg_cnt; 2843 __le32 unsupport_mcs; 2844} __packed; 2845 2846#define INTERFERENCE_DATA_AVAILABLE cpu_to_le32(1) 2847 2848struct statistics_rx_non_phy { 2849 __le32 bogus_cts; /* CTS received when not expecting CTS */ 2850 __le32 bogus_ack; /* ACK received when not expecting ACK */ 2851 __le32 non_bssid_frames; /* number of frames with BSSID that 2852 * doesn't belong to the STA BSSID */ 2853 __le32 filtered_frames; /* count frames that were dumped in the 2854 * filtering process */ 2855 __le32 non_channel_beacons; /* beacons with our bss id but not on 2856 * our serving channel */ 2857 __le32 channel_beacons; /* beacons with our bss id and in our 2858 * serving channel */ 2859 __le32 num_missed_bcon; /* number of missed beacons */ 2860 __le32 adc_rx_saturation_time; /* count in 0.8us units the time the 2861 * ADC was in saturation */ 2862 __le32 ina_detection_search_time;/* total time (in 0.8us) searched 2863 * for INA */ 2864 __le32 beacon_silence_rssi_a; /* RSSI silence after beacon frame */ 2865 __le32 beacon_silence_rssi_b; /* RSSI silence after beacon frame */ 2866 __le32 beacon_silence_rssi_c; /* RSSI silence after beacon frame */ 2867 __le32 interference_data_flag; /* flag for interference data 2868 * availability. 1 when data is 2869 * available. */ 2870 __le32 channel_load; /* counts RX Enable time in uSec */ 2871 __le32 dsp_false_alarms; /* DSP false alarm (both OFDM 2872 * and CCK) counter */ 2873 __le32 beacon_rssi_a; 2874 __le32 beacon_rssi_b; 2875 __le32 beacon_rssi_c; 2876 __le32 beacon_energy_a; 2877 __le32 beacon_energy_b; 2878 __le32 beacon_energy_c; 2879} __packed; 2880 2881struct statistics_rx { 2882 struct statistics_rx_phy ofdm; 2883 struct statistics_rx_phy cck; 2884 struct statistics_rx_non_phy general; 2885 struct statistics_rx_ht_phy ofdm_ht; 2886} __packed; 2887 2888/** 2889 * struct statistics_tx_power - current tx power 2890 * 2891 * @ant_a: current tx power on chain a in 1/2 dB step 2892 * @ant_b: current tx power on chain b in 1/2 dB step 2893 * @ant_c: current tx power on chain c in 1/2 dB step 2894 */ 2895struct statistics_tx_power { 2896 u8 ant_a; 2897 u8 ant_b; 2898 u8 ant_c; 2899 u8 reserved; 2900} __packed; 2901 2902struct statistics_tx_non_phy_agg { 2903 __le32 ba_timeout; 2904 __le32 ba_reschedule_frames; 2905 __le32 scd_query_agg_frame_cnt; 2906 __le32 scd_query_no_agg; 2907 __le32 scd_query_agg; 2908 __le32 scd_query_mismatch; 2909 __le32 frame_not_ready; 2910 __le32 underrun; 2911 __le32 bt_prio_kill; 2912 __le32 rx_ba_rsp_cnt; 2913} __packed; 2914 2915struct statistics_tx { 2916 __le32 preamble_cnt; 2917 __le32 rx_detected_cnt; 2918 __le32 bt_prio_defer_cnt; 2919 __le32 bt_prio_kill_cnt; 2920 __le32 few_bytes_cnt; 2921 __le32 cts_timeout; 2922 __le32 ack_timeout; 2923 __le32 expected_ack_cnt; 2924 __le32 actual_ack_cnt; 2925 __le32 dump_msdu_cnt; 2926 __le32 burst_abort_next_frame_mismatch_cnt; 2927 __le32 burst_abort_missing_next_frame_cnt; 2928 __le32 cts_timeout_collision; 2929 __le32 ack_or_ba_timeout_collision; 2930 struct statistics_tx_non_phy_agg agg; 2931 2932 __le32 reserved1; 2933} __packed; 2934 2935 2936struct statistics_div { 2937 __le32 tx_on_a; 2938 __le32 tx_on_b; 2939 __le32 exec_time; 2940 __le32 probe_time; 2941 __le32 reserved1; 2942 __le32 reserved2; 2943} __packed; 2944 2945struct statistics_general_common { 2946 __le32 temperature; /* radio temperature */ 2947 struct statistics_dbg dbg; 2948 __le32 sleep_time; 2949 __le32 slots_out; 2950 __le32 slots_idle; 2951 __le32 ttl_timestamp; 2952 struct statistics_div div; 2953 __le32 rx_enable_counter; 2954 /* 2955 * num_of_sos_states: 2956 * count the number of times we have to re-tune 2957 * in order to get out of bad PHY status 2958 */ 2959 __le32 num_of_sos_states; 2960} __packed; 2961 2962struct statistics_general { 2963 struct statistics_general_common common; 2964 __le32 reserved2; 2965 __le32 reserved3; 2966} __packed; 2967 2968#define UCODE_STATISTICS_CLEAR_MSK (0x1 << 0) 2969#define UCODE_STATISTICS_FREQUENCY_MSK (0x1 << 1) 2970#define UCODE_STATISTICS_NARROW_BAND_MSK (0x1 << 2) 2971 2972/* 2973 * REPLY_STATISTICS_CMD = 0x9c, 2974 * all devices identical. 2975 * 2976 * This command triggers an immediate response containing uCode statistics. 2977 * The response is in the same format as STATISTICS_NOTIFICATION 0x9d, below. 2978 * 2979 * If the CLEAR_STATS configuration flag is set, uCode will clear its 2980 * internal copy of the statistics (counters) after issuing the response. 2981 * This flag does not affect STATISTICS_NOTIFICATIONs after beacons (see below). 2982 * 2983 * If the DISABLE_NOTIF configuration flag is set, uCode will not issue 2984 * STATISTICS_NOTIFICATIONs after received beacons (see below). This flag 2985 * does not affect the response to the REPLY_STATISTICS_CMD 0x9c itself. 2986 */ 2987#define IWL_STATS_CONF_CLEAR_STATS cpu_to_le32(0x1) /* see above */ 2988#define IWL_STATS_CONF_DISABLE_NOTIF cpu_to_le32(0x2)/* see above */ 2989struct iwl_statistics_cmd { 2990 __le32 configuration_flags; /* IWL_STATS_CONF_* */ 2991} __packed; 2992 2993/* 2994 * STATISTICS_NOTIFICATION = 0x9d (notification only, not a command) 2995 * 2996 * By default, uCode issues this notification after receiving a beacon 2997 * while associated. To disable this behavior, set DISABLE_NOTIF flag in the 2998 * REPLY_STATISTICS_CMD 0x9c, above. 2999 * 3000 * Statistics counters continue to increment beacon after beacon, but are
3001 * cleared when changing channels or when driver issues REPLY_STATISTICS_CMD 3002 * 0x9c with CLEAR_STATS bit set (see above). 3003 * 3004 * uCode also issues this notification during scans. uCode clears statistics 3005 * appropriately so that each notification contains statistics for only the 3006 * one channel that has just been scanned. 3007 */ 3008#define STATISTICS_REPLY_FLG_BAND_24G_MSK cpu_to_le32(0x2) 3009#define STATISTICS_REPLY_FLG_HT40_MODE_MSK cpu_to_le32(0x8) 3010 3011struct iwl3945_notif_statistics { 3012 __le32 flag; 3013 struct iwl39_statistics_rx rx; 3014 struct iwl39_statistics_tx tx; 3015 struct iwl39_statistics_general general; 3016} __packed; 3017 3018struct iwl_notif_statistics { 3019 __le32 flag; 3020 struct statistics_rx rx; 3021 struct statistics_tx tx; 3022 struct statistics_general general; 3023} __packed; 3024 3025/* 3026 * MISSED_BEACONS_NOTIFICATION = 0xa2 (notification only, not a command) 3027 * 3028 * uCode send MISSED_BEACONS_NOTIFICATION to driver when detect beacon missed 3029 * in regardless of how many missed beacons, which mean when driver receive the 3030 * notification, inside the command, it can find all the beacons information 3031 * which include number of total missed beacons, number of consecutive missed 3032 * beacons, number of beacons received and number of beacons expected to 3033 * receive. 3034 * 3035 * If uCode detected consecutive_missed_beacons > 5, it will reset the radio 3036 * in order to bring the radio/PHY back to working state; which has no relation 3037 * to when driver will perform sensitivity calibration. 3038 * 3039 * Driver should set it own missed_beacon_threshold to decide when to perform 3040 * sensitivity calibration based on number of consecutive missed beacons in 3041 * order to improve overall performance, especially in noisy environment. 3042 * 3043 */ 3044 3045#define IWL_MISSED_BEACON_THRESHOLD_MIN (1) 3046#define IWL_MISSED_BEACON_THRESHOLD_DEF (5) 3047#define IWL_MISSED_BEACON_THRESHOLD_MAX IWL_MISSED_BEACON_THRESHOLD_DEF 3048 3049struct iwl_missed_beacon_notif { 3050 __le32 consecutive_missed_beacons; 3051 __le32 total_missed_becons; 3052 __le32 num_expected_beacons; 3053 __le32 num_recvd_beacons; 3054} __packed; 3055 3056 3057/****************************************************************************** 3058 * (11) 3059 * Rx Calibration Commands: 3060 * 3061 * With the uCode used for open source drivers, most Tx calibration (except 3062 * for Tx Power) and most Rx calibration is done by uCode during the 3063 * "initialize" phase of uCode boot. Driver must calibrate only: 3064 * 3065 * 1) Tx power (depends on temperature), described elsewhere 3066 * 2) Receiver gain balance (optimize MIMO, and detect disconnected antennas) 3067 * 3) Receiver sensitivity (to optimize signal detection) 3068 * 3069 *****************************************************************************/ 3070 3071/** 3072 * SENSITIVITY_CMD = 0xa8 (command, has simple generic response) 3073 * 3074 * This command sets up the Rx signal detector for a sensitivity level that 3075 * is high enough to lock onto all signals within the associated network, 3076 * but low enough to ignore signals that are below a certain threshold, so as 3077 * not to have too many "false alarms". False alarms are signals that the 3078 * Rx DSP tries to lock onto, but then discards after determining that they 3079 * are noise. 3080 * 3081 * The optimum number of false alarms is between 5 and 50 per 200 TUs 3082 * (200 * 1024 uSecs, i.e. 204.8 milliseconds) of actual Rx time (i.e. 3083 * time listening, not transmitting). Driver must adjust sensitivity so that 3084 * the ratio of actual false alarms to actual Rx time falls within this range. 3085 * 3086 * While associated, uCode delivers STATISTICS_NOTIFICATIONs after each 3087 * received beacon. These provide information to the driver to analyze the 3088 * sensitivity. Don't analyze statistics that come in from scanning, or any 3089 * other non-associated-network source. Pertinent statistics include: 3090 * 3091 * From "general" statistics (struct statistics_rx_non_phy): 3092 * 3093 * (beacon_energy_[abc] & 0x0FF00) >> 8 (unsigned, higher value is lower level) 3094 * Measure of energy of desired signal. Used for establishing a level 3095 * below which the device does not detect signals. 3096 * 3097 * (beacon_silence_rssi_[abc] & 0x0FF00) >> 8 (unsigned, units in dB) 3098 * Measure of background noise in silent period after beacon. 3099 * 3100 * channel_load 3101 * uSecs of actual Rx time during beacon period (varies according to 3102 * how much time was spent transmitting). 3103 * 3104 * From "cck" and "ofdm" statistics (struct statistics_rx_phy), separately: 3105 * 3106 * false_alarm_cnt 3107 * Signal locks abandoned early (before phy-level header). 3108 * 3109 * plcp_err 3110 * Signal locks abandoned late (during phy-level header). 3111 * 3112 * NOTE: Both false_alarm_cnt and plcp_err increment monotonically from 3113 * beacon to beacon, i.e. each value is an accumulation of all errors 3114 * before and including the latest beacon. Values will wrap around to 0 3115 * after counting up to 2^32 - 1. Driver must differentiate vs. 3116 * previous beacon's values to determine # false alarms in the current 3117 * beacon period. 3118 * 3119 * Total number of false alarms = false_alarms + plcp_errs 3120 * 3121 * For OFDM, adjust the following table entries in struct iwl_sensitivity_cmd 3122 * (notice that the start points for OFDM are at or close to settings for 3123 * maximum sensitivity): 3124 * 3125 * START / MIN / MAX 3126 * HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX 90 / 85 / 120 3127 * HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX 170 / 170 / 210 3128 * HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX 105 / 105 / 140 3129 * HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX 220 / 220 / 270 3130 * 3131 * If actual rate of OFDM false alarms (+ plcp_errors) is too high 3132 * (greater than 50 for each 204.8 msecs listening), reduce sensitivity 3133 * by *adding* 1 to all 4 of the table entries above, up to the max for 3134 * each entry. Conversely, if false alarm rate is too low (less than 5 3135 * for each 204.8 msecs listening), *subtract* 1 from each entry to 3136 * increase sensitivity. 3137 * 3138 * For CCK sensitivity, keep track of the following: 3139 * 3140 * 1). 20-beacon history of maximum background noise, indicated by 3141 * (beacon_silence_rssi_[abc] & 0x0FF00), units in dB, across the 3142 * 3 receivers. For any given beacon, the "silence reference" is 3143 * the maximum of last 60 samples (20 beacons * 3 receivers). 3144 * 3145 * 2). 10-beacon history of strongest signal level, as indicated 3146 * by (beacon_energy_[abc] & 0x0FF00) >> 8, across the 3 receivers, 3147 * i.e. the strength of the signal through the best receiver at the 3148 * moment. These measurements are "upside down", with lower values 3149 * for stronger signals, so max energy will be *minimum* value. 3150 * 3151 * Then for any given beacon, the driver must determine the *weakest* 3152 * of the strongest signals; this is the minimum level that needs to be 3153 * successfully detected, when using the best receiver at the moment. 3154 * "Max cck energy" is the maximum (higher value means lower energy!) 3155 * of the last 10 minima. Once this is determined, driver must add 3156 * a little margin by adding "6" to it. 3157 * 3158 * 3). Number of consecutive beacon periods with too few false alarms. 3159 * Reset this to 0 at the first beacon period that falls within the 3160 * "good" range (5 to 50 false alarms per 204.8 milliseconds rx). 3161 * 3162 * Then, adjust the following CCK table entries in struct iwl_sensitivity_cmd 3163 * (notice that the start points for CCK are at maximum sensitivity): 3164 * 3165 * START / MIN / MAX 3166 * HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX 125 / 125 / 200 3167 * HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX 200 / 200 / 400 3168 * HD_MIN_ENERGY_CCK_DET_INDEX 100 / 0 / 100 3169 * 3170 * If actual rate of CCK false alarms (+ plcp_errors) is too high 3171 * (greater than 50 for each 204.8 msecs listening), method for reducing 3172 * sensitivity is: 3173 * 3174 * 1) *Add* 3 to value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX, 3175 * up to max 400. 3176 * 3177 * 2) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX is < 160, 3178 * sensitivity has been reduced a significant amount; bring it up to 3179 * a moderate 161. Otherwise, *add* 3, up to max 200. 3180 * 3181 * 3) a) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX is > 160, 3182 * sensitivity has been reduced only a moderate or small amount; 3183 * *subtract* 2 from value in HD_MIN_ENERGY_CCK_DET_INDEX, 3184 * down to min 0. Otherwise (if gain has been significantly reduced), 3185 * don't change the HD_MIN_ENERGY_CCK_DET_INDEX value. 3186 * 3187 * b) Save a snapshot of the "silence reference". 3188 * 3189 * If actual rate of CCK false alarms (+ plcp_errors) is too low 3190 * (less than 5 for each 204.8 msecs listening), method for increasing 3191 * sensitivity is used only if: 3192 * 3193 * 1a) Previous beacon did not have too many false alarms 3194 * 1b) AND difference between previous "silence reference" and current 3195 * "silence reference" (prev - current) is 2 or more, 3196 * OR 2) 100 or more consecutive beacon periods have had rate of 3197 * less than 5 false alarms per 204.8 milliseconds rx time. 3198 * 3199 * Method for increasing sensitivity: 3200 * 3201 * 1) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX, 3202 * down to min 125. 3203 * 3204 * 2) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX, 3205 * down to min 200. 3206 * 3207 * 3) *Add* 2 to value in HD_MIN_ENERGY_CCK_DET_INDEX, up to max 100. 3208 * 3209 * If actual rate of CCK false alarms (+ plcp_errors) is within good range 3210 * (between 5 and 50 for each 204.8 msecs listening): 3211 * 3212 * 1) Save a snapshot of the silence reference. 3213 * 3214 * 2) If previous beacon had too many CCK false alarms (+ plcp_errors), 3215 * give some extra margin to energy threshold by *subtracting* 8 3216 * from value in HD_MIN_ENERGY_CCK_DET_INDEX. 3217 * 3218 * For all cases (too few, too many, good range), make sure that the CCK 3219 * detection threshold (energy) is below the energy level for robust 3220 * detection over the past 10 beacon periods, the "Max cck energy". 3221 * Lower values mean higher energy; this means making sure that the value 3222 * in HD_MIN_ENERGY_CCK_DET_INDEX is at or *above* "Max cck energy". 3223 * 3224 */ 3225 3226/* 3227 * Table entries in SENSITIVITY_CMD (struct iwl_sensitivity_cmd) 3228 */ 3229#define HD_TABLE_SIZE (11) /* number of entries */ 3230#define HD_MIN_ENERGY_CCK_DET_INDEX (0) /* table indexes */ 3231#define HD_MIN_ENERGY_OFDM_DET_INDEX (1) 3232#define HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX (2) 3233#define HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX (3) 3234#define HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX (4) 3235#define HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX (5) 3236#define HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX (6) 3237#define HD_BARKER_CORR_TH_ADD_MIN_INDEX (7) 3238#define HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX (8) 3239#define HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX (9) 3240#define HD_OFDM_ENERGY_TH_IN_INDEX (10) 3241 3242/* Control field in struct iwl_sensitivity_cmd */ 3243#define SENSITIVITY_CMD_CONTROL_DEFAULT_TABLE cpu_to_le16(0) 3244#define SENSITIVITY_CMD_CONTROL_WORK_TABLE cpu_to_le16(1) 3245 3246/** 3247 * struct iwl_sensitivity_cmd 3248 * @control: (1) updates working table, (0) updates default table 3249 * @table: energy threshold values, use HD_* as index into table 3250 * 3251 * Always use "1" in "control" to update uCode's working table and DSP. 3252 */ 3253struct iwl_sensitivity_cmd { 3254 __le16 control; /* always use "1" */ 3255 __le16 table[HD_TABLE_SIZE]; /* use HD_* as index */ 3256} __packed; 3257 3258 3259/** 3260 * REPLY_PHY_CALIBRATION_CMD = 0xb0 (command, has simple generic response) 3261 * 3262 * This command sets the relative gains of 4965 device's 3 radio receiver chains. 3263 * 3264 * After the first association, driver should accumulate signal and noise 3265 * statistics from the STATISTICS_NOTIFICATIONs that follow the first 20 3266 * beacons from the associated network (don't collect statistics that come 3267 * in from scanning, or any other non-network source). 3268 * 3269 * DISCONNECTED ANTENNA: 3270 * 3271 * Driver should determine which antennas are actually connected, by comparing 3272 * average beacon signal levels for the 3 Rx chains. Accumulate (add) the 3273 * following values over 20 beacons, one accumulator for each of the chains 3274 * a/b/c, from struct statistics_rx_non_phy: 3275 * 3276 * beacon_rssi_[abc] & 0x0FF (unsigned, units in dB) 3277 * 3278 * Find the strongest signal from among a/b/c. Compare the other two to the 3279 * strongest. If any signal is more than 15 dB (times 20, unless you 3280 * divide the accumulated values by 20) below the strongest, the driver 3281 * considers that antenna to be disconnected, and should not try to use that 3282 * antenna/chain for Rx or Tx. If both A and B seem to be disconnected, 3283 * driver should declare the stronger one as connected, and attempt to use it 3284 * (A and B are the only 2 Tx chains!). 3285 * 3286 * 3287 * RX BALANCE: 3288 * 3289 * Driver should balance the 3 receivers (but just the ones that are connected 3290 * to antennas, see above) for gain, by comparing the average signal levels 3291 * detected during the silence after each beacon (background noise). 3292 * Accumulate (add) the following values over 20 beacons, one accumulator for 3293 * each of the chains a/b/c, from struct statistics_rx_non_phy: 3294 * 3295 * beacon_silence_rssi_[abc] & 0x0FF (unsigned, units in dB) 3296 * 3297 * Find the weakest background noise level from among a/b/c. This Rx chain 3298 * will be the reference, with 0 gain adjustment. Attenuate other channels by 3299 * finding noise difference: 3300 * 3301 * (accum_noise[i] - accum_noise[reference]) / 30 3302 * 3303 * The "30" adjusts the dB in the 20 accumulated samples to units of 1.5 dB. 3304 * For use in diff_gain_[abc] fields of struct iwl_calibration_cmd, the 3305 * driver should limit the difference results to a range of 0-3 (0-4.5 dB), 3306 * and set bit 2 to indicate "reduce gain". The value for the reference 3307 * (weakest) chain should be "0". 3308 * 3309 * diff_gain_[abc] bit fields: 3310 * 2: (1) reduce gain, (0) increase gain 3311 * 1-0: amount of gain, units of 1.5 dB 3312 */ 3313 3314/* Phy calibration command for series */ 3315/* The default calibrate table size if not specified by firmware */ 3316#define IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE 18 3317enum { 3318 IWL_PHY_CALIBRATE_DIFF_GAIN_CMD = 7, 3319 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE = 19, 3320}; 3321 3322#define IWL_MAX_PHY_CALIBRATE_TBL_SIZE (253) 3323 3324struct iwl_calib_hdr { 3325 u8 op_code; 3326 u8 first_group; 3327 u8 groups_num; 3328 u8 data_valid; 3329} __packed; 3330 3331/* IWL_PHY_CALIBRATE_DIFF_GAIN_CMD (7) */ 3332struct iwl_calib_diff_gain_cmd { 3333 struct iwl_calib_hdr hdr; 3334 s8 diff_gain_a; /* see above */ 3335 s8 diff_gain_b; 3336 s8 diff_gain_c; 3337 u8 reserved1; 3338} __packed; 3339 3340/****************************************************************************** 3341 * (12) 3342 * Miscellaneous Commands: 3343 * 3344 *****************************************************************************/ 3345 3346/* 3347 * LEDs Command & Response 3348 * REPLY_LEDS_CMD = 0x48 (command, has simple generic response) 3349 * 3350 * For each of 3 possible LEDs (Activity/Link/Tech, selected by "id" field), 3351 * this command turns it on or off, or sets up a periodic blinking cycle. 3352 */ 3353struct iwl_led_cmd { 3354 __le32 interval; /* "interval" in uSec */ 3355 u8 id; /* 1: Activity, 2: Link, 3: Tech */ 3356 u8 off; /* # intervals off while blinking; 3357 * "0", with >0 "on" value, turns LED on */ 3358 u8 on; /* # intervals on while blinking; 3359 * "0", regardless of "off", turns LED off */ 3360 u8 reserved; 3361} __packed; 3362 3363 3364/****************************************************************************** 3365 * (13) 3366 * Union of all expected notifications/responses: 3367 * 3368 *****************************************************************************/ 3369 3370struct iwl_rx_packet { 3371 /* 3372 * The first 4 bytes of the RX frame header contain both the RX frame 3373 * size and some flags. 3374 * Bit fields: 3375 * 31: flag flush RB request 3376 * 30: flag ignore TC (terminal counter) request 3377 * 29: flag fast IRQ request 3378 * 28-14: Reserved 3379 * 13-00: RX frame size 3380 */ 3381 __le32 len_n_flags; 3382 struct iwl_cmd_header hdr; 3383 union { 3384 struct iwl3945_rx_frame rx_frame; 3385 struct iwl3945_tx_resp tx_resp; 3386 struct iwl3945_beacon_notif beacon_status; 3387 3388 struct iwl_alive_resp alive_frame; 3389 struct iwl_spectrum_notification spectrum_notif; 3390 struct iwl_csa_notification csa_notif; 3391 struct iwl_error_resp err_resp; 3392 struct iwl_card_state_notif card_state_notif; 3393 struct iwl_add_sta_resp add_sta; 3394 struct iwl_rem_sta_resp rem_sta; 3395 struct iwl_sleep_notification sleep_notif; 3396 struct iwl_spectrum_resp spectrum; 3397 struct iwl_notif_statistics stats; 3398 struct iwl_compressed_ba_resp compressed_ba; 3399 struct iwl_missed_beacon_notif missed_beacon; 3400 __le32 status; 3401 u8 raw[0]; 3402 } u; 3403} __packed; 3404 3405#endif /* __iwl_legacy_commands_h__ */ 3406