1 /******************************************************************************
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.
8 * Copyright(c) 2005 - 2008 Intel Corporation. All rights reserved.
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.
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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.
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,
24 * The full GNU General Public License is included in this distribution
25 * in the file called LICENSE.GPL.
27 * Contact Information:
28 * James P. Ketrenos <ipw2100-admin@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
33 * Copyright(c) 2005 - 2008 Intel Corporation. All rights reserved.
34 * All rights reserved.
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
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43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
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.
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
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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,
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58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 *****************************************************************************/
64 * Please use this file (iwl-commands.h) only for uCode API definitions.
65 * Please use iwl-4965-hw.h for hardware-related definitions.
66 * Please use iwl-dev.h for driver implementation definitions.
69 #ifndef __iwl4965_commands_h__
70 #define __iwl4965_commands_h__
76 /* RXON and QOS commands */
78 REPLY_RXON_ASSOC = 0x11,
79 REPLY_QOS_PARAM = 0x13,
80 REPLY_RXON_TIMING = 0x14,
82 /* Multi-Station support */
84 REPLY_REMOVE_STA = 0x19, /* not used */
85 REPLY_REMOVE_ALL_STA = 0x1a, /* not used */
92 REPLY_RATE_SCALE = 0x47, /* 3945 only */
93 REPLY_LEDS_CMD = 0x48,
94 REPLY_TX_LINK_QUALITY_CMD = 0x4e, /* 4965 only */
96 /* WiMAX coexistence */
97 COEX_PRIORITY_TABLE_CMD = 0x5a, /*5000 only */
98 COEX_MEDIUM_NOTIFICATION = 0x5b,
99 COEX_EVENT_CMD = 0x5c,
101 /* 802.11h related */
102 RADAR_NOTIFICATION = 0x70, /* not used */
103 REPLY_QUIET_CMD = 0x71, /* not used */
104 REPLY_CHANNEL_SWITCH = 0x72,
105 CHANNEL_SWITCH_NOTIFICATION = 0x73,
106 REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74,
107 SPECTRUM_MEASURE_NOTIFICATION = 0x75,
109 /* Power Management */
110 POWER_TABLE_CMD = 0x77,
111 PM_SLEEP_NOTIFICATION = 0x7A,
112 PM_DEBUG_STATISTIC_NOTIFIC = 0x7B,
114 /* Scan commands and notifications */
115 REPLY_SCAN_CMD = 0x80,
116 REPLY_SCAN_ABORT_CMD = 0x81,
117 SCAN_START_NOTIFICATION = 0x82,
118 SCAN_RESULTS_NOTIFICATION = 0x83,
119 SCAN_COMPLETE_NOTIFICATION = 0x84,
121 /* IBSS/AP commands */
122 BEACON_NOTIFICATION = 0x90,
123 REPLY_TX_BEACON = 0x91,
124 WHO_IS_AWAKE_NOTIFICATION = 0x94, /* not used */
126 /* Miscellaneous commands */
127 QUIET_NOTIFICATION = 0x96, /* not used */
128 REPLY_TX_PWR_TABLE_CMD = 0x97,
129 MEASURE_ABORT_NOTIFICATION = 0x99, /* not used */
131 /* Bluetooth device coexistance config command */
132 REPLY_BT_CONFIG = 0x9b,
135 REPLY_STATISTICS_CMD = 0x9c,
136 STATISTICS_NOTIFICATION = 0x9d,
138 /* RF-KILL commands and notifications */
139 REPLY_CARD_STATE_CMD = 0xa0,
140 CARD_STATE_NOTIFICATION = 0xa1,
142 /* Missed beacons notification */
143 MISSED_BEACONS_NOTIFICATION = 0xa2,
145 REPLY_CT_KILL_CONFIG_CMD = 0xa4,
146 SENSITIVITY_CMD = 0xa8,
147 REPLY_PHY_CALIBRATION_CMD = 0xb0,
148 REPLY_RX_PHY_CMD = 0xc0,
149 REPLY_RX_MPDU_CMD = 0xc1,
151 REPLY_COMPRESSED_BA = 0xc5,
155 /******************************************************************************
157 * Commonly used structures and definitions:
158 * Command header, rate_n_flags, txpower
160 *****************************************************************************/
162 /* iwl_cmd_header flags value */
163 #define IWL_CMD_FAILED_MSK 0x40
166 * struct iwl_cmd_header
168 * This header format appears in the beginning of each command sent from the
169 * driver, and each response/notification received from uCode.
171 struct iwl_cmd_header {
172 u8 cmd; /* Command ID: REPLY_RXON, etc. */
173 u8 flags; /* IWL_CMD_* */
175 * The driver sets up the sequence number to values of its chosing.
176 * uCode does not use this value, but passes it back to the driver
177 * when sending the response to each driver-originated command, so
178 * the driver can match the response to the command. Since the values
179 * don't get used by uCode, the driver may set up an arbitrary format.
181 * There is one exception: uCode sets bit 15 when it originates
182 * the response/notification, i.e. when the response/notification
183 * is not a direct response to a command sent by the driver. For
184 * example, uCode issues REPLY_3945_RX when it sends a received frame
185 * to the driver; it is not a direct response to any driver command.
187 * The Linux driver uses the following format:
189 * 0:7 index/position within Tx queue
190 * 8:13 Tx queue selection
191 * 14:14 driver sets this to indicate command is in the 'huge'
192 * storage at the end of the command buffers, i.e. scan cmd
193 * 15:15 uCode sets this in uCode-originated response/notification
197 /* command or response/notification data follows immediately */
199 } __attribute__ ((packed));
202 * 4965 rate_n_flags bit fields
204 * rate_n_flags format is used in following 4965 commands:
205 * REPLY_RX (response only)
206 * REPLY_TX (both command and response)
207 * REPLY_TX_LINK_QUALITY_CMD
209 * High-throughput (HT) rate format for bits 7:0 (bit 8 must be "1"):
219 * 3: 0) Single stream (SISO)
220 * 1) Dual stream (MIMO)
222 * 5: Value of 0x20 in bits 7:0 indicates 6 Mbps FAT duplicate data
224 * Legacy OFDM rate format for bits 7:0 (bit 8 must be "0", bit 9 "0"):
234 * Legacy CCK rate format for bits 7:0 (bit 8 must be "0", bit 9 "1"):
240 #define RATE_MCS_CODE_MSK 0x7
241 #define RATE_MCS_MIMO_POS 3
242 #define RATE_MCS_MIMO_MSK 0x8
243 #define RATE_MCS_HT_DUP_POS 5
244 #define RATE_MCS_HT_DUP_MSK 0x20
246 /* Bit 8: (1) HT format, (0) legacy format in bits 7:0 */
247 #define RATE_MCS_FLAGS_POS 8
248 #define RATE_MCS_HT_POS 8
249 #define RATE_MCS_HT_MSK 0x100
251 /* Bit 9: (1) CCK, (0) OFDM. HT (bit 8) must be "0" for this bit to be valid */
252 #define RATE_MCS_CCK_POS 9
253 #define RATE_MCS_CCK_MSK 0x200
255 /* Bit 10: (1) Use Green Field preamble */
256 #define RATE_MCS_GF_POS 10
257 #define RATE_MCS_GF_MSK 0x400
259 /* Bit 11: (1) Use 40Mhz FAT chnl width, (0) use 20 MHz legacy chnl width */
260 #define RATE_MCS_FAT_POS 11
261 #define RATE_MCS_FAT_MSK 0x800
263 /* Bit 12: (1) Duplicate data on both 20MHz chnls. FAT (bit 11) must be set. */
264 #define RATE_MCS_DUP_POS 12
265 #define RATE_MCS_DUP_MSK 0x1000
267 /* Bit 13: (1) Short guard interval (0.4 usec), (0) normal GI (0.8 usec) */
268 #define RATE_MCS_SGI_POS 13
269 #define RATE_MCS_SGI_MSK 0x2000
272 * rate_n_flags Tx antenna masks (4965 has 2 transmitters):
273 * bit14:15 01 B inactive, A active
274 * 10 B active, A inactive
277 #define RATE_MCS_ANT_POS 14
278 #define RATE_MCS_ANT_A_MSK 0x04000
279 #define RATE_MCS_ANT_B_MSK 0x08000
280 #define RATE_MCS_ANT_C_MSK 0x10000
281 #define RATE_MCS_ANT_ABC_MSK 0x1C000
285 * struct iwl4965_tx_power - txpower format used in REPLY_SCAN_CMD
287 * Scan uses only one transmitter, so only one analog/dsp gain pair is needed.
289 struct iwl4965_tx_power {
290 u8 tx_gain; /* gain for analog radio */
291 u8 dsp_atten; /* gain for DSP */
292 } __attribute__ ((packed));
294 #define POWER_TABLE_NUM_ENTRIES 33
295 #define POWER_TABLE_NUM_HT_OFDM_ENTRIES 32
296 #define POWER_TABLE_CCK_ENTRY 32
299 * union iwl4965_tx_power_dual_stream
301 * Host format used for REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH
302 * Use __le32 version (struct tx_power_dual_stream) when building command.
304 * Driver provides radio gain and DSP attenuation settings to device in pairs,
305 * one value for each transmitter chain. The first value is for transmitter A,
306 * second for transmitter B.
308 * For SISO bit rates, both values in a pair should be identical.
309 * For MIMO rates, one value may be different from the other,
310 * in order to balance the Tx output between the two transmitters.
312 * See more details in doc for TXPOWER in iwl-4965-hw.h.
314 union iwl4965_tx_power_dual_stream {
317 u8 dsp_predis_atten[2];
323 * struct tx_power_dual_stream
325 * Table entries in REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH
327 * Same format as iwl_tx_power_dual_stream, but __le32
329 struct tx_power_dual_stream {
331 } __attribute__ ((packed));
334 * struct iwl4965_tx_power_db
336 * Entire table within REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH
338 struct iwl4965_tx_power_db {
339 struct tx_power_dual_stream power_tbl[POWER_TABLE_NUM_ENTRIES];
340 } __attribute__ ((packed));
343 /******************************************************************************
345 * Alive and Error Commands & Responses:
347 *****************************************************************************/
349 #define UCODE_VALID_OK __constant_cpu_to_le32(0x1)
350 #define INITIALIZE_SUBTYPE (9)
353 * ("Initialize") REPLY_ALIVE = 0x1 (response only, not a command)
355 * uCode issues this "initialize alive" notification once the initialization
356 * uCode image has completed its work, and is ready to load the runtime image.
357 * This is the *first* "alive" notification that the driver will receive after
358 * rebooting uCode; the "initialize" alive is indicated by subtype field == 9.
360 * See comments documenting "BSM" (bootstrap state machine).
362 * For 4965, this notification contains important calibration data for
363 * calculating txpower settings:
365 * 1) Power supply voltage indication. The voltage sensor outputs higher
366 * values for lower voltage, and vice versa.
368 * 2) Temperature measurement parameters, for each of two channel widths
369 * (20 MHz and 40 MHz) supported by the radios. Temperature sensing
370 * is done via one of the receiver chains, and channel width influences
373 * 3) Tx gain compensation to balance 4965's 2 Tx chains for MIMO operation,
374 * for each of 5 frequency ranges.
376 struct iwl_init_alive_resp {
382 u8 ver_subtype; /* "9" for initialize alive */
384 __le32 log_event_table_ptr;
385 __le32 error_event_table_ptr;
389 /* calibration values from "initialize" uCode */
390 __le32 voltage; /* signed, higher value is lower voltage */
391 __le32 therm_r1[2]; /* signed, 1st for normal, 2nd for FAT channel*/
392 __le32 therm_r2[2]; /* signed */
393 __le32 therm_r3[2]; /* signed */
394 __le32 therm_r4[2]; /* signed */
395 __le32 tx_atten[5][2]; /* signed MIMO gain comp, 5 freq groups,
397 } __attribute__ ((packed));
401 * REPLY_ALIVE = 0x1 (response only, not a command)
403 * uCode issues this "alive" notification once the runtime image is ready
404 * to receive commands from the driver. This is the *second* "alive"
405 * notification that the driver will receive after rebooting uCode;
406 * this "alive" is indicated by subtype field != 9.
408 * See comments documenting "BSM" (bootstrap state machine).
410 * This response includes two pointers to structures within the device's
411 * data SRAM (access via HBUS_TARG_MEM_* regs) that are useful for debugging:
413 * 1) log_event_table_ptr indicates base of the event log. This traces
414 * a 256-entry history of uCode execution within a circular buffer.
415 * Its header format is:
417 * __le32 log_size; log capacity (in number of entries)
418 * __le32 type; (1) timestamp with each entry, (0) no timestamp
419 * __le32 wraps; # times uCode has wrapped to top of circular buffer
420 * __le32 write_index; next circular buffer entry that uCode would fill
422 * The header is followed by the circular buffer of log entries. Entries
423 * with timestamps have the following format:
425 * __le32 event_id; range 0 - 1500
426 * __le32 timestamp; low 32 bits of TSF (of network, if associated)
427 * __le32 data; event_id-specific data value
429 * Entries without timestamps contain only event_id and data.
431 * 2) error_event_table_ptr indicates base of the error log. This contains
432 * information about any uCode error that occurs. For 4965, the format
433 * of the error log is:
435 * __le32 valid; (nonzero) valid, (0) log is empty
436 * __le32 error_id; type of error
437 * __le32 pc; program counter
438 * __le32 blink1; branch link
439 * __le32 blink2; branch link
440 * __le32 ilink1; interrupt link
441 * __le32 ilink2; interrupt link
442 * __le32 data1; error-specific data
443 * __le32 data2; error-specific data
444 * __le32 line; source code line of error
445 * __le32 bcon_time; beacon timer
446 * __le32 tsf_low; network timestamp function timer
447 * __le32 tsf_hi; network timestamp function timer
449 * The Linux driver can print both logs to the system log when a uCode error
452 struct iwl_alive_resp {
458 u8 ver_subtype; /* not "9" for runtime alive */
460 __le32 log_event_table_ptr; /* SRAM address for event log */
461 __le32 error_event_table_ptr; /* SRAM address for error log */
464 } __attribute__ ((packed));
474 * REPLY_ERROR = 0x2 (response only, not a command)
476 struct iwl_error_resp {
480 __le16 bad_cmd_seq_num;
483 } __attribute__ ((packed));
485 /******************************************************************************
487 * RXON Commands & Responses:
489 *****************************************************************************/
492 * Rx config defines & structure
494 /* rx_config device types */
496 RXON_DEV_TYPE_AP = 1,
497 RXON_DEV_TYPE_ESS = 3,
498 RXON_DEV_TYPE_IBSS = 4,
499 RXON_DEV_TYPE_SNIFFER = 6,
503 #define RXON_RX_CHAIN_DRIVER_FORCE_MSK __constant_cpu_to_le16(0x1 << 0)
504 #define RXON_RX_CHAIN_VALID_MSK __constant_cpu_to_le16(0x7 << 1)
505 #define RXON_RX_CHAIN_VALID_POS (1)
506 #define RXON_RX_CHAIN_FORCE_SEL_MSK __constant_cpu_to_le16(0x7 << 4)
507 #define RXON_RX_CHAIN_FORCE_SEL_POS (4)
508 #define RXON_RX_CHAIN_FORCE_MIMO_SEL_MSK __constant_cpu_to_le16(0x7 << 7)
509 #define RXON_RX_CHAIN_FORCE_MIMO_SEL_POS (7)
510 #define RXON_RX_CHAIN_CNT_MSK __constant_cpu_to_le16(0x3 << 10)
511 #define RXON_RX_CHAIN_CNT_POS (10)
512 #define RXON_RX_CHAIN_MIMO_CNT_MSK __constant_cpu_to_le16(0x3 << 12)
513 #define RXON_RX_CHAIN_MIMO_CNT_POS (12)
514 #define RXON_RX_CHAIN_MIMO_FORCE_MSK __constant_cpu_to_le16(0x1 << 14)
515 #define RXON_RX_CHAIN_MIMO_FORCE_POS (14)
517 /* rx_config flags */
518 /* band & modulation selection */
519 #define RXON_FLG_BAND_24G_MSK __constant_cpu_to_le32(1 << 0)
520 #define RXON_FLG_CCK_MSK __constant_cpu_to_le32(1 << 1)
521 /* auto detection enable */
522 #define RXON_FLG_AUTO_DETECT_MSK __constant_cpu_to_le32(1 << 2)
523 /* TGg protection when tx */
524 #define RXON_FLG_TGG_PROTECT_MSK __constant_cpu_to_le32(1 << 3)
525 /* cck short slot & preamble */
526 #define RXON_FLG_SHORT_SLOT_MSK __constant_cpu_to_le32(1 << 4)
527 #define RXON_FLG_SHORT_PREAMBLE_MSK __constant_cpu_to_le32(1 << 5)
528 /* antenna selection */
529 #define RXON_FLG_DIS_DIV_MSK __constant_cpu_to_le32(1 << 7)
530 #define RXON_FLG_ANT_SEL_MSK __constant_cpu_to_le32(0x0f00)
531 #define RXON_FLG_ANT_A_MSK __constant_cpu_to_le32(1 << 8)
532 #define RXON_FLG_ANT_B_MSK __constant_cpu_to_le32(1 << 9)
533 /* radar detection enable */
534 #define RXON_FLG_RADAR_DETECT_MSK __constant_cpu_to_le32(1 << 12)
535 #define RXON_FLG_TGJ_NARROW_BAND_MSK __constant_cpu_to_le32(1 << 13)
536 /* rx response to host with 8-byte TSF
537 * (according to ON_AIR deassertion) */
538 #define RXON_FLG_TSF2HOST_MSK __constant_cpu_to_le32(1 << 15)
542 #define RXON_FLG_CTRL_CHANNEL_LOC_POS (22)
543 #define RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK __constant_cpu_to_le32(0x1 << 22)
545 #define RXON_FLG_HT_OPERATING_MODE_POS (23)
547 #define RXON_FLG_HT_PROT_MSK __constant_cpu_to_le32(0x1 << 23)
548 #define RXON_FLG_FAT_PROT_MSK __constant_cpu_to_le32(0x2 << 23)
550 #define RXON_FLG_CHANNEL_MODE_POS (25)
551 #define RXON_FLG_CHANNEL_MODE_MSK __constant_cpu_to_le32(0x3 << 25)
552 #define RXON_FLG_CHANNEL_MODE_PURE_40_MSK __constant_cpu_to_le32(0x1 << 25)
553 #define RXON_FLG_CHANNEL_MODE_MIXED_MSK __constant_cpu_to_le32(0x2 << 25)
555 /* rx_config filter flags */
556 /* accept all data frames */
557 #define RXON_FILTER_PROMISC_MSK __constant_cpu_to_le32(1 << 0)
558 /* pass control & management to host */
559 #define RXON_FILTER_CTL2HOST_MSK __constant_cpu_to_le32(1 << 1)
560 /* accept multi-cast */
561 #define RXON_FILTER_ACCEPT_GRP_MSK __constant_cpu_to_le32(1 << 2)
562 /* don't decrypt uni-cast frames */
563 #define RXON_FILTER_DIS_DECRYPT_MSK __constant_cpu_to_le32(1 << 3)
564 /* don't decrypt multi-cast frames */
565 #define RXON_FILTER_DIS_GRP_DECRYPT_MSK __constant_cpu_to_le32(1 << 4)
566 /* STA is associated */
567 #define RXON_FILTER_ASSOC_MSK __constant_cpu_to_le32(1 << 5)
568 /* transfer to host non bssid beacons in associated state */
569 #define RXON_FILTER_BCON_AWARE_MSK __constant_cpu_to_le32(1 << 6)
572 * REPLY_RXON = 0x10 (command, has simple generic response)
574 * RXON tunes the radio tuner to a service channel, and sets up a number
575 * of parameters that are used primarily for Rx, but also for Tx operations.
577 * NOTE: When tuning to a new channel, driver must set the
578 * RXON_FILTER_ASSOC_MSK to 0. This will clear station-dependent
579 * info within the device, including the station tables, tx retry
580 * rate tables, and txpower tables. Driver must build a new station
581 * table and txpower table before transmitting anything on the RXON
584 * NOTE: All RXONs wipe clean the internal txpower table. Driver must
585 * issue a new REPLY_TX_PWR_TABLE_CMD after each REPLY_RXON (0x10),
586 * regardless of whether RXON_FILTER_ASSOC_MSK is set.
588 struct iwl4965_rxon_cmd {
593 u8 wlap_bssid_addr[6];
604 u8 ofdm_ht_single_stream_basic_rates;
605 u8 ofdm_ht_dual_stream_basic_rates;
606 } __attribute__ ((packed));
608 /* 5000 HW just extend this cmmand */
609 struct iwl_rxon_cmd {
614 u8 wlap_bssid_addr[6];
625 u8 ofdm_ht_single_stream_basic_rates;
626 u8 ofdm_ht_dual_stream_basic_rates;
627 u8 ofdm_ht_triple_stream_basic_rates;
629 __le16 acquisition_data;
631 } __attribute__ ((packed));
633 struct iwl5000_rxon_assoc_cmd {
639 u8 ofdm_ht_single_stream_basic_rates;
640 u8 ofdm_ht_dual_stream_basic_rates;
641 u8 ofdm_ht_triple_stream_basic_rates;
643 __le16 rx_chain_select_flags;
644 __le16 acquisition_data;
646 } __attribute__ ((packed));
649 * REPLY_RXON_ASSOC = 0x11 (command, has simple generic response)
651 struct iwl4965_rxon_assoc_cmd {
656 u8 ofdm_ht_single_stream_basic_rates;
657 u8 ofdm_ht_dual_stream_basic_rates;
658 __le16 rx_chain_select_flags;
660 } __attribute__ ((packed));
666 * REPLY_RXON_TIMING = 0x14 (command, has simple generic response)
668 struct iwl4965_rxon_time_cmd {
670 __le16 beacon_interval;
672 __le32 beacon_init_val;
673 __le16 listen_interval;
675 } __attribute__ ((packed));
678 * REPLY_CHANNEL_SWITCH = 0x72 (command, has simple generic response)
680 struct iwl4965_channel_switch_cmd {
685 __le32 rxon_filter_flags;
687 struct iwl4965_tx_power_db tx_power;
688 } __attribute__ ((packed));
691 * CHANNEL_SWITCH_NOTIFICATION = 0x73 (notification only, not a command)
693 struct iwl4965_csa_notification {
696 __le32 status; /* 0 - OK, 1 - fail */
697 } __attribute__ ((packed));
699 /******************************************************************************
701 * Quality-of-Service (QOS) Commands & Responses:
703 *****************************************************************************/
706 * struct iwl_ac_qos -- QOS timing params for REPLY_QOS_PARAM
707 * One for each of 4 EDCA access categories in struct iwl_qosparam_cmd
709 * @cw_min: Contention window, start value in numbers of slots.
710 * Should be a power-of-2, minus 1. Device's default is 0x0f.
711 * @cw_max: Contention window, max value in numbers of slots.
712 * Should be a power-of-2, minus 1. Device's default is 0x3f.
713 * @aifsn: Number of slots in Arbitration Interframe Space (before
714 * performing random backoff timing prior to Tx). Device default 1.
715 * @edca_txop: Length of Tx opportunity, in uSecs. Device default is 0.
717 * Device will automatically increase contention window by (2*CW) + 1 for each
718 * transmission retry. Device uses cw_max as a bit mask, ANDed with new CW
719 * value, to cap the CW value.
721 struct iwl4965_ac_qos {
727 } __attribute__ ((packed));
729 /* QoS flags defines */
730 #define QOS_PARAM_FLG_UPDATE_EDCA_MSK __constant_cpu_to_le32(0x01)
731 #define QOS_PARAM_FLG_TGN_MSK __constant_cpu_to_le32(0x02)
732 #define QOS_PARAM_FLG_TXOP_TYPE_MSK __constant_cpu_to_le32(0x10)
734 /* Number of Access Categories (AC) (EDCA), queues 0..3 */
738 * REPLY_QOS_PARAM = 0x13 (command, has simple generic response)
740 * This command sets up timings for each of the 4 prioritized EDCA Tx FIFOs
741 * 0: Background, 1: Best Effort, 2: Video, 3: Voice.
743 struct iwl4965_qosparam_cmd {
745 struct iwl4965_ac_qos ac[AC_NUM];
746 } __attribute__ ((packed));
748 /******************************************************************************
750 * Add/Modify Stations Commands & Responses:
752 *****************************************************************************/
754 * Multi station support
757 /* Special, dedicated locations within device's station table */
759 #define IWL_MULTICAST_ID 1
761 #define IWL4965_BROADCAST_ID 31
762 #define IWL4965_STATION_COUNT 32
763 #define IWL5000_BROADCAST_ID 15
764 #define IWL5000_STATION_COUNT 16
766 #define IWL_STATION_COUNT 32 /* MAX(3945,4965)*/
767 #define IWL_INVALID_STATION 255
769 #define STA_FLG_PWR_SAVE_MSK __constant_cpu_to_le32(1 << 8);
770 #define STA_FLG_RTS_MIMO_PROT_MSK __constant_cpu_to_le32(1 << 17)
771 #define STA_FLG_AGG_MPDU_8US_MSK __constant_cpu_to_le32(1 << 18)
772 #define STA_FLG_MAX_AGG_SIZE_POS (19)
773 #define STA_FLG_MAX_AGG_SIZE_MSK __constant_cpu_to_le32(3 << 19)
774 #define STA_FLG_FAT_EN_MSK __constant_cpu_to_le32(1 << 21)
775 #define STA_FLG_MIMO_DIS_MSK __constant_cpu_to_le32(1 << 22)
776 #define STA_FLG_AGG_MPDU_DENSITY_POS (23)
777 #define STA_FLG_AGG_MPDU_DENSITY_MSK __constant_cpu_to_le32(7 << 23)
779 /* Use in mode field. 1: modify existing entry, 0: add new station entry */
780 #define STA_CONTROL_MODIFY_MSK 0x01
782 /* key flags __le16*/
783 #define STA_KEY_FLG_ENCRYPT_MSK __constant_cpu_to_le16(0x0007)
784 #define STA_KEY_FLG_NO_ENC __constant_cpu_to_le16(0x0000)
785 #define STA_KEY_FLG_WEP __constant_cpu_to_le16(0x0001)
786 #define STA_KEY_FLG_CCMP __constant_cpu_to_le16(0x0002)
787 #define STA_KEY_FLG_TKIP __constant_cpu_to_le16(0x0003)
789 #define STA_KEY_FLG_KEYID_POS 8
790 #define STA_KEY_FLG_INVALID __constant_cpu_to_le16(0x0800)
791 /* wep key is either from global key (0) or from station info array (1) */
792 #define STA_KEY_FLG_MAP_KEY_MSK __constant_cpu_to_le16(0x0008)
794 /* wep key in STA: 5-bytes (0) or 13-bytes (1) */
795 #define STA_KEY_FLG_KEY_SIZE_MSK __constant_cpu_to_le16(0x1000)
796 #define STA_KEY_MULTICAST_MSK __constant_cpu_to_le16(0x4000)
797 #define STA_KEY_MAX_NUM 8
799 /* Flags indicate whether to modify vs. don't change various station params */
800 #define STA_MODIFY_KEY_MASK 0x01
801 #define STA_MODIFY_TID_DISABLE_TX 0x02
802 #define STA_MODIFY_TX_RATE_MSK 0x04
803 #define STA_MODIFY_ADDBA_TID_MSK 0x08
804 #define STA_MODIFY_DELBA_TID_MSK 0x10
806 /* Receiver address (actually, Rx station's index into station table),
807 * combined with Traffic ID (QOS priority), in format used by Tx Scheduler */
808 #define BUILD_RAxTID(sta_id, tid) (((sta_id) << 4) + (tid))
810 struct iwl4965_keyinfo {
812 u8 tkip_rx_tsc_byte2; /* TSC[2] for key mix ph1 detection */
814 __le16 tkip_rx_ttak[5]; /* 10-byte unicast TKIP TTAK */
817 u8 key[16]; /* 16-byte unicast decryption key */
818 } __attribute__ ((packed));
823 u8 tkip_rx_tsc_byte2; /* TSC[2] for key mix ph1 detection */
825 __le16 tkip_rx_ttak[5]; /* 10-byte unicast TKIP TTAK */
828 u8 key[16]; /* 16-byte unicast decryption key */
829 __le64 tx_secur_seq_cnt;
830 __le64 hw_tkip_mic_rx_key;
831 __le64 hw_tkip_mic_tx_key;
832 } __attribute__ ((packed));
835 * struct sta_id_modify
836 * @addr[ETH_ALEN]: station's MAC address
837 * @sta_id: index of station in uCode's station table
838 * @modify_mask: STA_MODIFY_*, 1: modify, 0: don't change
840 * Driver selects unused table index when adding new station,
841 * or the index to a pre-existing station entry when modifying that station.
842 * Some indexes have special purposes (IWL_AP_ID, index 0, is for AP).
844 * modify_mask flags select which parameters to modify vs. leave alone.
846 struct sta_id_modify {
852 } __attribute__ ((packed));
855 * REPLY_ADD_STA = 0x18 (command)
857 * The device contains an internal table of per-station information,
858 * with info on security keys, aggregation parameters, and Tx rates for
859 * initial Tx attempt and any retries (4965 uses REPLY_TX_LINK_QUALITY_CMD,
860 * 3945 uses REPLY_RATE_SCALE to set up rate tables).
862 * REPLY_ADD_STA sets up the table entry for one station, either creating
863 * a new entry, or modifying a pre-existing one.
865 * NOTE: RXON command (without "associated" bit set) wipes the station table
866 * clean. Moving into RF_KILL state does this also. Driver must set up
867 * new station table before transmitting anything on the RXON channel
868 * (except active scans or active measurements; those commands carry
869 * their own txpower/rate setup data).
871 * When getting started on a new channel, driver must set up the
872 * IWL_BROADCAST_ID entry (last entry in the table). For a client
873 * station in a BSS, once an AP is selected, driver sets up the AP STA
874 * in the IWL_AP_ID entry (1st entry in the table). BROADCAST and AP
875 * are all that are needed for a BSS client station. If the device is
876 * used as AP, or in an IBSS network, driver must set up station table
877 * entries for all STAs in network, starting with index IWL_STA_ID.
879 struct iwl4965_addsta_cmd {
880 u8 mode; /* 1: modify existing, 0: add new station */
882 struct sta_id_modify sta;
883 struct iwl4965_keyinfo key;
884 __le32 station_flags; /* STA_FLG_* */
885 __le32 station_flags_msk; /* STA_FLG_* */
887 /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID)
888 * corresponding to bit (e.g. bit 5 controls TID 5).
889 * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */
890 __le16 tid_disable_tx;
894 /* TID for which to add block-ack support.
895 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
896 u8 add_immediate_ba_tid;
898 /* TID for which to remove block-ack support.
899 * Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */
900 u8 remove_immediate_ba_tid;
902 /* Starting Sequence Number for added block-ack support.
903 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
904 __le16 add_immediate_ba_ssn;
907 } __attribute__ ((packed));
910 struct iwl_addsta_cmd {
911 u8 mode; /* 1: modify existing, 0: add new station */
913 struct sta_id_modify sta;
914 struct iwl_keyinfo key;
915 __le32 station_flags; /* STA_FLG_* */
916 __le32 station_flags_msk; /* STA_FLG_* */
918 /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID)
919 * corresponding to bit (e.g. bit 5 controls TID 5).
920 * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */
921 __le16 tid_disable_tx;
925 /* TID for which to add block-ack support.
926 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
927 u8 add_immediate_ba_tid;
929 /* TID for which to remove block-ack support.
930 * Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */
931 u8 remove_immediate_ba_tid;
933 /* Starting Sequence Number for added block-ack support.
934 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
935 __le16 add_immediate_ba_ssn;
938 } __attribute__ ((packed));
941 #define ADD_STA_SUCCESS_MSK 0x1
942 #define ADD_STA_NO_ROOM_IN_TABLE 0x2
943 #define ADD_STA_NO_BLOCK_ACK_RESOURCE 0x4
944 #define ADD_STA_MODIFY_NON_EXIST_STA 0x8
946 * REPLY_ADD_STA = 0x18 (response)
948 struct iwl_add_sta_resp {
949 u8 status; /* ADD_STA_* */
950 } __attribute__ ((packed));
952 #define REM_STA_SUCCESS_MSK 0x1
954 * REPLY_REM_STA = 0x19 (response)
956 struct iwl_rem_sta_resp {
958 } __attribute__ ((packed));
961 * REPLY_REM_STA = 0x19 (command)
963 struct iwl_rem_sta_cmd {
964 u8 num_sta; /* number of removed stations */
966 u8 addr[ETH_ALEN]; /* MAC addr of the first station */
968 } __attribute__ ((packed));
971 * REPLY_WEP_KEY = 0x20
980 } __attribute__ ((packed));
987 struct iwl_wep_key key[0];
988 } __attribute__ ((packed));
990 #define WEP_KEY_WEP_TYPE 1
991 #define WEP_KEYS_MAX 4
992 #define WEP_INVALID_OFFSET 0xff
993 #define WEP_KEY_LEN_128 13
995 /******************************************************************************
999 *****************************************************************************/
1001 struct iwl4965_rx_frame_stats {
1009 } __attribute__ ((packed));
1011 struct iwl4965_rx_frame_hdr {
1018 } __attribute__ ((packed));
1020 #define RX_RES_STATUS_NO_CRC32_ERROR __constant_cpu_to_le32(1 << 0)
1021 #define RX_RES_STATUS_NO_RXE_OVERFLOW __constant_cpu_to_le32(1 << 1)
1023 #define RX_RES_PHY_FLAGS_BAND_24_MSK __constant_cpu_to_le16(1 << 0)
1024 #define RX_RES_PHY_FLAGS_MOD_CCK_MSK __constant_cpu_to_le16(1 << 1)
1025 #define RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK __constant_cpu_to_le16(1 << 2)
1026 #define RX_RES_PHY_FLAGS_NARROW_BAND_MSK __constant_cpu_to_le16(1 << 3)
1027 #define RX_RES_PHY_FLAGS_ANTENNA_MSK __constant_cpu_to_le16(0xf0)
1029 #define RX_RES_STATUS_SEC_TYPE_MSK (0x7 << 8)
1030 #define RX_RES_STATUS_SEC_TYPE_NONE (0x0 << 8)
1031 #define RX_RES_STATUS_SEC_TYPE_WEP (0x1 << 8)
1032 #define RX_RES_STATUS_SEC_TYPE_CCMP (0x2 << 8)
1033 #define RX_RES_STATUS_SEC_TYPE_TKIP (0x3 << 8)
1034 #define RX_RES_STATUS_SEC_TYPE_ERR (0x7 << 8)
1036 #define RX_RES_STATUS_STATION_FOUND (1<<6)
1037 #define RX_RES_STATUS_NO_STATION_INFO_MISMATCH (1<<7)
1039 #define RX_RES_STATUS_DECRYPT_TYPE_MSK (0x3 << 11)
1040 #define RX_RES_STATUS_NOT_DECRYPT (0x0 << 11)
1041 #define RX_RES_STATUS_DECRYPT_OK (0x3 << 11)
1042 #define RX_RES_STATUS_BAD_ICV_MIC (0x1 << 11)
1043 #define RX_RES_STATUS_BAD_KEY_TTAK (0x2 << 11)
1045 #define RX_MPDU_RES_STATUS_ICV_OK (0x20)
1046 #define RX_MPDU_RES_STATUS_MIC_OK (0x40)
1047 #define RX_MPDU_RES_STATUS_TTAK_OK (1 << 7)
1048 #define RX_MPDU_RES_STATUS_DEC_DONE_MSK (0x800)
1050 struct iwl4965_rx_frame_end {
1053 __le32 beacon_timestamp;
1054 } __attribute__ ((packed));
1057 * REPLY_3945_RX = 0x1b (response only, not a command)
1059 * NOTE: DO NOT dereference from casts to this structure
1060 * It is provided only for calculating minimum data set size.
1061 * The actual offsets of the hdr and end are dynamic based on
1064 struct iwl4965_rx_frame {
1065 struct iwl4965_rx_frame_stats stats;
1066 struct iwl4965_rx_frame_hdr hdr;
1067 struct iwl4965_rx_frame_end end;
1068 } __attribute__ ((packed));
1070 /* Fixed (non-configurable) rx data from phy */
1071 #define RX_PHY_FLAGS_ANTENNAE_OFFSET (4)
1072 #define RX_PHY_FLAGS_ANTENNAE_MASK (0x70)
1073 #define IWL_AGC_DB_MASK (0x3f80) /* MASK(7,13) */
1074 #define IWL_AGC_DB_POS (7)
1075 struct iwl4965_rx_non_cfg_phy {
1076 __le16 ant_selection; /* ant A bit 4, ant B bit 5, ant C bit 6 */
1077 __le16 agc_info; /* agc code 0:6, agc dB 7:13, reserved 14:15 */
1078 u8 rssi_info[6]; /* we use even entries, 0/2/4 for A/B/C rssi */
1080 } __attribute__ ((packed));
1083 * REPLY_RX = 0xc3 (response only, not a command)
1084 * Used only for legacy (non 11n) frames.
1086 #define RX_RES_PHY_CNT 14
1087 struct iwl4965_rx_phy_res {
1088 u8 non_cfg_phy_cnt; /* non configurable DSP phy data byte count */
1089 u8 cfg_phy_cnt; /* configurable DSP phy data byte count */
1090 u8 stat_id; /* configurable DSP phy data set ID */
1092 __le64 timestamp; /* TSF at on air rise */
1093 __le32 beacon_time_stamp; /* beacon at on-air rise */
1094 __le16 phy_flags; /* general phy flags: band, modulation, ... */
1095 __le16 channel; /* channel number */
1096 __le16 non_cfg_phy[RX_RES_PHY_CNT]; /* upto 14 phy entries */
1098 __le32 rate_n_flags; /* RATE_MCS_* */
1099 __le16 byte_count; /* frame's byte-count */
1101 } __attribute__ ((packed));
1103 struct iwl4965_rx_mpdu_res_start {
1106 } __attribute__ ((packed));
1109 /******************************************************************************
1111 * Tx Commands & Responses:
1113 * Driver must place each REPLY_TX command into one of the prioritized Tx
1114 * queues in host DRAM, shared between driver and device (see comments for
1115 * SCD registers and Tx/Rx Queues). When the device's Tx scheduler and uCode
1116 * are preparing to transmit, the device pulls the Tx command over the PCI
1117 * bus via one of the device's Tx DMA channels, to fill an internal FIFO
1118 * from which data will be transmitted.
1120 * uCode handles all timing and protocol related to control frames
1121 * (RTS/CTS/ACK), based on flags in the Tx command. uCode and Tx scheduler
1122 * handle reception of block-acks; uCode updates the host driver via
1123 * REPLY_COMPRESSED_BA (4965).
1125 * uCode handles retrying Tx when an ACK is expected but not received.
1126 * This includes trying lower data rates than the one requested in the Tx
1127 * command, as set up by the REPLY_RATE_SCALE (for 3945) or
1128 * REPLY_TX_LINK_QUALITY_CMD (4965).
1130 * Driver sets up transmit power for various rates via REPLY_TX_PWR_TABLE_CMD.
1131 * This command must be executed after every RXON command, before Tx can occur.
1132 *****************************************************************************/
1134 /* REPLY_TX Tx flags field */
1136 /* 1: Use Request-To-Send protocol before this frame.
1137 * Mutually exclusive vs. TX_CMD_FLG_CTS_MSK. */
1138 #define TX_CMD_FLG_RTS_MSK __constant_cpu_to_le32(1 << 1)
1140 /* 1: Transmit Clear-To-Send to self before this frame.
1141 * Driver should set this for AUTH/DEAUTH/ASSOC-REQ/REASSOC mgmnt frames.
1142 * Mutually exclusive vs. TX_CMD_FLG_RTS_MSK. */
1143 #define TX_CMD_FLG_CTS_MSK __constant_cpu_to_le32(1 << 2)
1145 /* 1: Expect ACK from receiving station
1146 * 0: Don't expect ACK (MAC header's duration field s/b 0)
1147 * Set this for unicast frames, but not broadcast/multicast. */
1148 #define TX_CMD_FLG_ACK_MSK __constant_cpu_to_le32(1 << 3)
1151 * 1: Use rate scale table (see REPLY_TX_LINK_QUALITY_CMD).
1152 * Tx command's initial_rate_index indicates first rate to try;
1153 * uCode walks through table for additional Tx attempts.
1154 * 0: Use Tx rate/MCS from Tx command's rate_n_flags field.
1155 * This rate will be used for all Tx attempts; it will not be scaled. */
1156 #define TX_CMD_FLG_STA_RATE_MSK __constant_cpu_to_le32(1 << 4)
1158 /* 1: Expect immediate block-ack.
1159 * Set when Txing a block-ack request frame. Also set TX_CMD_FLG_ACK_MSK. */
1160 #define TX_CMD_FLG_IMM_BA_RSP_MASK __constant_cpu_to_le32(1 << 6)
1162 /* 1: Frame requires full Tx-Op protection.
1163 * Set this if either RTS or CTS Tx Flag gets set. */
1164 #define TX_CMD_FLG_FULL_TXOP_PROT_MSK __constant_cpu_to_le32(1 << 7)
1166 /* Tx antenna selection field; used only for 3945, reserved (0) for 4965.
1167 * Set field to "0" to allow 3945 uCode to select antenna (normal usage). */
1168 #define TX_CMD_FLG_ANT_SEL_MSK __constant_cpu_to_le32(0xf00)
1169 #define TX_CMD_FLG_ANT_A_MSK __constant_cpu_to_le32(1 << 8)
1170 #define TX_CMD_FLG_ANT_B_MSK __constant_cpu_to_le32(1 << 9)
1172 /* 1: Ignore Bluetooth priority for this frame.
1173 * 0: Delay Tx until Bluetooth device is done (normal usage). */
1174 #define TX_CMD_FLG_BT_DIS_MSK __constant_cpu_to_le32(1 << 12)
1176 /* 1: uCode overrides sequence control field in MAC header.
1177 * 0: Driver provides sequence control field in MAC header.
1178 * Set this for management frames, non-QOS data frames, non-unicast frames,
1179 * and also in Tx command embedded in REPLY_SCAN_CMD for active scans. */
1180 #define TX_CMD_FLG_SEQ_CTL_MSK __constant_cpu_to_le32(1 << 13)
1182 /* 1: This frame is non-last MPDU; more fragments are coming.
1183 * 0: Last fragment, or not using fragmentation. */
1184 #define TX_CMD_FLG_MORE_FRAG_MSK __constant_cpu_to_le32(1 << 14)
1186 /* 1: uCode calculates and inserts Timestamp Function (TSF) in outgoing frame.
1187 * 0: No TSF required in outgoing frame.
1188 * Set this for transmitting beacons and probe responses. */
1189 #define TX_CMD_FLG_TSF_MSK __constant_cpu_to_le32(1 << 16)
1191 /* 1: Driver inserted 2 bytes pad after the MAC header, for (required) dword
1192 * alignment of frame's payload data field.
1194 * Set this for MAC headers with 26 or 30 bytes, i.e. those with QOS or ADDR4
1195 * field (but not both). Driver must align frame data (i.e. data following
1196 * MAC header) to DWORD boundary. */
1197 #define TX_CMD_FLG_MH_PAD_MSK __constant_cpu_to_le32(1 << 20)
1199 /* accelerate aggregation support
1200 * 0 - no CCMP encryption; 1 - CCMP encryption */
1201 #define TX_CMD_FLG_AGG_CCMP_MSK __constant_cpu_to_le32(1 << 22)
1203 /* HCCA-AP - disable duration overwriting. */
1204 #define TX_CMD_FLG_DUR_MSK __constant_cpu_to_le32(1 << 25)
1208 * TX command security control
1210 #define TX_CMD_SEC_WEP 0x01
1211 #define TX_CMD_SEC_CCM 0x02
1212 #define TX_CMD_SEC_TKIP 0x03
1213 #define TX_CMD_SEC_MSK 0x03
1214 #define TX_CMD_SEC_SHIFT 6
1215 #define TX_CMD_SEC_KEY128 0x08
1218 * security overhead sizes
1220 #define WEP_IV_LEN 4
1221 #define WEP_ICV_LEN 4
1222 #define CCMP_MIC_LEN 8
1223 #define TKIP_ICV_LEN 4
1226 * 4965 uCode updates these Tx attempt count values in host DRAM.
1227 * Used for managing Tx retries when expecting block-acks.
1228 * Driver should set these fields to 0.
1230 struct iwl4965_dram_scratch {
1231 u8 try_cnt; /* Tx attempts */
1232 u8 bt_kill_cnt; /* Tx attempts blocked by Bluetooth device */
1234 } __attribute__ ((packed));
1237 * REPLY_TX = 0x1c (command)
1242 * MAC header (24/26/30/32 bytes) + 2 bytes pad if 26/30 header size,
1243 * + 8 byte IV for CCM or TKIP (not used for WEP)
1245 * + 8-byte MIC (not used for CCM/WEP)
1246 * NOTE: Does not include Tx command bytes, post-MAC pad bytes,
1247 * MIC (CCM) 8 bytes, ICV (WEP/TKIP/CKIP) 4 bytes, CRC 4 bytes.i
1248 * Range: 14-2342 bytes.
1253 * MPDU or MSDU byte count for next frame.
1254 * Used for fragmentation and bursting, but not 11n aggregation.
1255 * Same as "len", but for next frame. Set to 0 if not applicable.
1257 __le16 next_frame_len;
1259 __le32 tx_flags; /* TX_CMD_FLG_* */
1261 /* 4965's uCode may modify this field of the Tx command (in host DRAM!).
1262 * Driver must also set dram_lsb_ptr and dram_msb_ptr in this cmd. */
1263 struct iwl4965_dram_scratch scratch;
1265 /* Rate for *all* Tx attempts, if TX_CMD_FLG_STA_RATE_MSK is cleared. */
1266 __le32 rate_n_flags; /* RATE_MCS_* */
1268 /* Index of destination station in uCode's station table */
1271 /* Type of security encryption: CCM or TKIP */
1272 u8 sec_ctl; /* TX_CMD_SEC_* */
1275 * Index into rate table (see REPLY_TX_LINK_QUALITY_CMD) for initial
1276 * Tx attempt, if TX_CMD_FLG_STA_RATE_MSK is set. Normally "0" for
1277 * data frames, this field may be used to selectively reduce initial
1278 * rate (via non-0 value) for special frames (e.g. management), while
1279 * still supporting rate scaling for all frames.
1281 u8 initial_rate_index;
1284 __le16 next_frame_flags;
1291 /* Host DRAM physical address pointer to "scratch" in this command.
1292 * Must be dword aligned. "0" in dram_lsb_ptr disables usage. */
1293 __le32 dram_lsb_ptr;
1296 u8 rts_retry_limit; /*byte 50 */
1297 u8 data_retry_limit; /*byte 51 */
1300 __le16 pm_frame_timeout;
1301 __le16 attempt_duration;
1305 * Duration of EDCA burst Tx Opportunity, in 32-usec units.
1306 * Set this if txop time is not specified by HCCA protocol (e.g. by AP).
1311 * MAC header goes here, followed by 2 bytes padding if MAC header
1312 * length is 26 or 30 bytes, followed by payload data
1315 struct ieee80211_hdr hdr[0];
1316 } __attribute__ ((packed));
1318 /* TX command response is sent after *all* transmission attempts.
1322 * TX_STATUS_FAIL_NEXT_FRAG
1324 * If the fragment flag in the MAC header for the frame being transmitted
1325 * is set and there is insufficient time to transmit the next frame, the
1326 * TX status will be returned with 'TX_STATUS_FAIL_NEXT_FRAG'.
1328 * TX_STATUS_FIFO_UNDERRUN
1330 * Indicates the host did not provide bytes to the FIFO fast enough while
1331 * a TX was in progress.
1333 * TX_STATUS_FAIL_MGMNT_ABORT
1335 * This status is only possible if the ABORT ON MGMT RX parameter was
1336 * set to true with the TX command.
1338 * If the MSB of the status parameter is set then an abort sequence is
1339 * required. This sequence consists of the host activating the TX Abort
1340 * control line, and then waiting for the TX Abort command response. This
1341 * indicates that a the device is no longer in a transmit state, and that the
1342 * command FIFO has been cleared. The host must then deactivate the TX Abort
1343 * control line. Receiving is still allowed in this case.
1346 TX_STATUS_SUCCESS = 0x01,
1347 TX_STATUS_DIRECT_DONE = 0x02,
1348 TX_STATUS_FAIL_SHORT_LIMIT = 0x82,
1349 TX_STATUS_FAIL_LONG_LIMIT = 0x83,
1350 TX_STATUS_FAIL_FIFO_UNDERRUN = 0x84,
1351 TX_STATUS_FAIL_MGMNT_ABORT = 0x85,
1352 TX_STATUS_FAIL_NEXT_FRAG = 0x86,
1353 TX_STATUS_FAIL_LIFE_EXPIRE = 0x87,
1354 TX_STATUS_FAIL_DEST_PS = 0x88,
1355 TX_STATUS_FAIL_ABORTED = 0x89,
1356 TX_STATUS_FAIL_BT_RETRY = 0x8a,
1357 TX_STATUS_FAIL_STA_INVALID = 0x8b,
1358 TX_STATUS_FAIL_FRAG_DROPPED = 0x8c,
1359 TX_STATUS_FAIL_TID_DISABLE = 0x8d,
1360 TX_STATUS_FAIL_FRAME_FLUSHED = 0x8e,
1361 TX_STATUS_FAIL_INSUFFICIENT_CF_POLL = 0x8f,
1362 TX_STATUS_FAIL_TX_LOCKED = 0x90,
1363 TX_STATUS_FAIL_NO_BEACON_ON_RADAR = 0x91,
1366 #define TX_PACKET_MODE_REGULAR 0x0000
1367 #define TX_PACKET_MODE_BURST_SEQ 0x0100
1368 #define TX_PACKET_MODE_BURST_FIRST 0x0200
1371 TX_POWER_PA_NOT_ACTIVE = 0x0,
1375 TX_STATUS_MSK = 0x000000ff, /* bits 0:7 */
1376 TX_STATUS_DELAY_MSK = 0x00000040,
1377 TX_STATUS_ABORT_MSK = 0x00000080,
1378 TX_PACKET_MODE_MSK = 0x0000ff00, /* bits 8:15 */
1379 TX_FIFO_NUMBER_MSK = 0x00070000, /* bits 16:18 */
1380 TX_RESERVED = 0x00780000, /* bits 19:22 */
1381 TX_POWER_PA_DETECT_MSK = 0x7f800000, /* bits 23:30 */
1382 TX_ABORT_REQUIRED_MSK = 0x80000000, /* bits 31:31 */
1385 static inline int iwl_is_tx_success(u32 status)
1387 status &= TX_STATUS_MSK;
1388 return (status == TX_STATUS_SUCCESS)
1389 || (status == TX_STATUS_DIRECT_DONE);
1394 /* *******************************
1395 * TX aggregation status
1396 ******************************* */
1399 AGG_TX_STATE_TRANSMITTED = 0x00,
1400 AGG_TX_STATE_UNDERRUN_MSK = 0x01,
1401 AGG_TX_STATE_BT_PRIO_MSK = 0x02,
1402 AGG_TX_STATE_FEW_BYTES_MSK = 0x04,
1403 AGG_TX_STATE_ABORT_MSK = 0x08,
1404 AGG_TX_STATE_LAST_SENT_TTL_MSK = 0x10,
1405 AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK = 0x20,
1406 AGG_TX_STATE_LAST_SENT_BT_KILL_MSK = 0x40,
1407 AGG_TX_STATE_SCD_QUERY_MSK = 0x80,
1408 AGG_TX_STATE_TEST_BAD_CRC32_MSK = 0x100,
1409 AGG_TX_STATE_RESPONSE_MSK = 0x1ff,
1410 AGG_TX_STATE_DUMP_TX_MSK = 0x200,
1411 AGG_TX_STATE_DELAY_TX_MSK = 0x400
1414 #define AGG_TX_STATE_LAST_SENT_MSK \
1415 (AGG_TX_STATE_LAST_SENT_TTL_MSK | \
1416 AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK | \
1417 AGG_TX_STATE_LAST_SENT_BT_KILL_MSK)
1419 /* # tx attempts for first frame in aggregation */
1420 #define AGG_TX_STATE_TRY_CNT_POS 12
1421 #define AGG_TX_STATE_TRY_CNT_MSK 0xf000
1423 /* Command ID and sequence number of Tx command for this frame */
1424 #define AGG_TX_STATE_SEQ_NUM_POS 16
1425 #define AGG_TX_STATE_SEQ_NUM_MSK 0xffff0000
1428 * REPLY_TX = 0x1c (response)
1430 * This response may be in one of two slightly different formats, indicated
1431 * by the frame_count field:
1433 * 1) No aggregation (frame_count == 1). This reports Tx results for
1434 * a single frame. Multiple attempts, at various bit rates, may have
1435 * been made for this frame.
1437 * 2) Aggregation (frame_count > 1). This reports Tx results for
1438 * 2 or more frames that used block-acknowledge. All frames were
1439 * transmitted at same rate. Rate scaling may have been used if first
1440 * frame in this new agg block failed in previous agg block(s).
1442 * Note that, for aggregation, ACK (block-ack) status is not delivered here;
1443 * block-ack has not been received by the time the 4965 records this status.
1444 * This status relates to reasons the tx might have been blocked or aborted
1445 * within the sending station (this 4965), rather than whether it was
1446 * received successfully by the destination station.
1448 struct agg_tx_status {
1451 } __attribute__ ((packed));
1453 struct iwl4965_tx_resp {
1454 u8 frame_count; /* 1 no aggregation, >1 aggregation */
1455 u8 bt_kill_count; /* # blocked by bluetooth (unused for agg) */
1456 u8 failure_rts; /* # failures due to unsuccessful RTS */
1457 u8 failure_frame; /* # failures due to no ACK (unused for agg) */
1459 /* For non-agg: Rate at which frame was successful.
1460 * For agg: Rate at which all frames were transmitted. */
1461 __le32 rate_n_flags; /* RATE_MCS_* */
1463 /* For non-agg: RTS + CTS + frame tx attempts time + ACK.
1464 * For agg: RTS + CTS + aggregation tx time + block-ack time. */
1465 __le16 wireless_media_time; /* uSecs */
1468 __le32 pa_power1; /* RF power amplifier measurement (not used) */
1472 * For non-agg: frame status TX_STATUS_*
1473 * For agg: status of 1st frame, AGG_TX_STATE_*; other frame status
1474 * fields follow this one, up to frame_count.
1476 * 11- 0: AGG_TX_STATE_* status code
1477 * 15-12: Retry count for 1st frame in aggregation (retries
1478 * occur if tx failed for this frame when it was a
1479 * member of a previous aggregation block). If rate
1480 * scaling is used, retry count indicates the rate
1481 * table entry used for all frames in the new agg.
1482 * 31-16: Sequence # for this frame's Tx cmd (not SSN!)
1484 __le32 status; /* TX status (for aggregation status of 1st frame) */
1485 } __attribute__ ((packed));
1487 struct iwl4965_tx_resp_agg {
1488 u8 frame_count; /* 1 no aggregation, >1 aggregation */
1492 __le32 rate_n_flags;
1493 __le16 wireless_media_time;
1497 struct agg_tx_status status; /* TX status (for aggregation status */
1499 } __attribute__ ((packed));
1501 struct iwl5000_tx_resp {
1502 u8 frame_count; /* 1 no aggregation, >1 aggregation */
1503 u8 bt_kill_count; /* # blocked by bluetooth (unused for agg) */
1504 u8 failure_rts; /* # failures due to unsuccessful RTS */
1505 u8 failure_frame; /* # failures due to no ACK (unused for agg) */
1507 /* For non-agg: Rate at which frame was successful.
1508 * For agg: Rate at which all frames were transmitted. */
1509 __le32 rate_n_flags; /* RATE_MCS_* */
1511 /* For non-agg: RTS + CTS + frame tx attempts time + ACK.
1512 * For agg: RTS + CTS + aggregation tx time + block-ack time. */
1513 __le16 wireless_media_time; /* uSecs */
1516 __le32 pa_power1; /* RF power amplifier measurement (not used) */
1524 * For non-agg: frame status TX_STATUS_*
1525 * For agg: status of 1st frame, AGG_TX_STATE_*; other frame status
1526 * fields follow this one, up to frame_count.
1528 * 11- 0: AGG_TX_STATE_* status code
1529 * 15-12: Retry count for 1st frame in aggregation (retries
1530 * occur if tx failed for this frame when it was a
1531 * member of a previous aggregation block). If rate
1532 * scaling is used, retry count indicates the rate
1533 * table entry used for all frames in the new agg.
1534 * 31-16: Sequence # for this frame's Tx cmd (not SSN!)
1536 struct agg_tx_status status; /* TX status (in aggregation -
1537 * status of 1st frame) */
1538 } __attribute__ ((packed));
1540 * REPLY_COMPRESSED_BA = 0xc5 (response only, not a command)
1542 * Reports Block-Acknowledge from recipient station
1544 struct iwl4965_compressed_ba_resp {
1545 __le32 sta_addr_lo32;
1546 __le16 sta_addr_hi16;
1549 /* Index of recipient (BA-sending) station in uCode's station table */
1556 } __attribute__ ((packed));
1559 * REPLY_TX_PWR_TABLE_CMD = 0x97 (command, has simple generic response)
1561 * See details under "TXPOWER" in iwl-4965-hw.h.
1563 struct iwl4965_txpowertable_cmd {
1564 u8 band; /* 0: 5 GHz, 1: 2.4 GHz */
1567 struct iwl4965_tx_power_db tx_power;
1568 } __attribute__ ((packed));
1570 /*RS_NEW_API: only TLC_RTS remains and moved to bit 0 */
1571 #define LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK (1 << 0)
1573 /* # of EDCA prioritized tx fifos */
1574 #define LINK_QUAL_AC_NUM AC_NUM
1576 /* # entries in rate scale table to support Tx retries */
1577 #define LINK_QUAL_MAX_RETRY_NUM 16
1579 /* Tx antenna selection values */
1580 #define LINK_QUAL_ANT_A_MSK (1 << 0)
1581 #define LINK_QUAL_ANT_B_MSK (1 << 1)
1582 #define LINK_QUAL_ANT_MSK (LINK_QUAL_ANT_A_MSK|LINK_QUAL_ANT_B_MSK)
1586 * struct iwl_link_qual_general_params
1588 * Used in REPLY_TX_LINK_QUALITY_CMD
1590 struct iwl_link_qual_general_params {
1593 /* No entries at or above this (driver chosen) index contain MIMO */
1596 /* Best single antenna to use for single stream (legacy, SISO). */
1597 u8 single_stream_ant_msk; /* LINK_QUAL_ANT_* */
1599 /* Best antennas to use for MIMO (unused for 4965, assumes both). */
1600 u8 dual_stream_ant_msk; /* LINK_QUAL_ANT_* */
1603 * If driver needs to use different initial rates for different
1604 * EDCA QOS access categories (as implemented by tx fifos 0-3),
1605 * this table will set that up, by indicating the indexes in the
1606 * rs_table[LINK_QUAL_MAX_RETRY_NUM] rate table at which to start.
1607 * Otherwise, driver should set all entries to 0.
1610 * 0 = Background, 1 = Best Effort (normal), 2 = Video, 3 = Voice
1611 * TX FIFOs above 3 use same value (typically 0) as TX FIFO 3.
1613 u8 start_rate_index[LINK_QUAL_AC_NUM];
1614 } __attribute__ ((packed));
1617 * struct iwl_link_qual_agg_params
1619 * Used in REPLY_TX_LINK_QUALITY_CMD
1621 struct iwl_link_qual_agg_params {
1623 /* Maximum number of uSec in aggregation.
1624 * Driver should set this to 4000 (4 milliseconds). */
1625 __le16 agg_time_limit;
1628 * Number of Tx retries allowed for a frame, before that frame will
1629 * no longer be considered for the start of an aggregation sequence
1630 * (scheduler will then try to tx it as single frame).
1631 * Driver should set this to 3.
1633 u8 agg_dis_start_th;
1636 * Maximum number of frames in aggregation.
1637 * 0 = no limit (default). 1 = no aggregation.
1638 * Other values = max # frames in aggregation.
1640 u8 agg_frame_cnt_limit;
1643 } __attribute__ ((packed));
1646 * REPLY_TX_LINK_QUALITY_CMD = 0x4e (command, has simple generic response)
1648 * For 4965 only; 3945 uses REPLY_RATE_SCALE.
1650 * Each station in the 4965's internal station table has its own table of 16
1651 * Tx rates and modulation modes (e.g. legacy/SISO/MIMO) for retrying Tx when
1652 * an ACK is not received. This command replaces the entire table for
1655 * NOTE: Station must already be in 4965's station table. Use REPLY_ADD_STA.
1657 * The rate scaling procedures described below work well. Of course, other
1658 * procedures are possible, and may work better for particular environments.
1661 * FILLING THE RATE TABLE
1663 * Given a particular initial rate and mode, as determined by the rate
1664 * scaling algorithm described below, the Linux driver uses the following
1665 * formula to fill the rs_table[LINK_QUAL_MAX_RETRY_NUM] rate table in the
1666 * Link Quality command:
1669 * 1) If using High-throughput (HT) (SISO or MIMO) initial rate:
1670 * a) Use this same initial rate for first 3 entries.
1671 * b) Find next lower available rate using same mode (SISO or MIMO),
1672 * use for next 3 entries. If no lower rate available, switch to
1673 * legacy mode (no FAT channel, no MIMO, no short guard interval).
1674 * c) If using MIMO, set command's mimo_delimiter to number of entries
1675 * using MIMO (3 or 6).
1676 * d) After trying 2 HT rates, switch to legacy mode (no FAT channel,
1677 * no MIMO, no short guard interval), at the next lower bit rate
1678 * (e.g. if second HT bit rate was 54, try 48 legacy), and follow
1679 * legacy procedure for remaining table entries.
1681 * 2) If using legacy initial rate:
1682 * a) Use the initial rate for only one entry.
1683 * b) For each following entry, reduce the rate to next lower available
1684 * rate, until reaching the lowest available rate.
1685 * c) When reducing rate, also switch antenna selection.
1686 * d) Once lowest available rate is reached, repeat this rate until
1687 * rate table is filled (16 entries), switching antenna each entry.
1690 * ACCUMULATING HISTORY
1692 * The rate scaling algorithm for 4965, as implemented in Linux driver, uses
1693 * two sets of frame Tx success history: One for the current/active modulation
1694 * mode, and one for a speculative/search mode that is being attempted. If the
1695 * speculative mode turns out to be more effective (i.e. actual transfer
1696 * rate is better), then the driver continues to use the speculative mode
1697 * as the new current active mode.
1699 * Each history set contains, separately for each possible rate, data for a
1700 * sliding window of the 62 most recent tx attempts at that rate. The data
1701 * includes a shifting bitmap of success(1)/failure(0), and sums of successful
1702 * and attempted frames, from which the driver can additionally calculate a
1703 * success ratio (success / attempted) and number of failures
1704 * (attempted - success), and control the size of the window (attempted).
1705 * The driver uses the bit map to remove successes from the success sum, as
1706 * the oldest tx attempts fall out of the window.
1708 * When the 4965 makes multiple tx attempts for a given frame, each attempt
1709 * might be at a different rate, and have different modulation characteristics
1710 * (e.g. antenna, fat channel, short guard interval), as set up in the rate
1711 * scaling table in the Link Quality command. The driver must determine
1712 * which rate table entry was used for each tx attempt, to determine which
1713 * rate-specific history to update, and record only those attempts that
1714 * match the modulation characteristics of the history set.
1716 * When using block-ack (aggregation), all frames are transmitted at the same
1717 * rate, since there is no per-attempt acknowledgement from the destination
1718 * station. The Tx response struct iwl_tx_resp indicates the Tx rate in
1719 * rate_n_flags field. After receiving a block-ack, the driver can update
1720 * history for the entire block all at once.
1723 * FINDING BEST STARTING RATE:
1725 * When working with a selected initial modulation mode (see below), the
1726 * driver attempts to find a best initial rate. The initial rate is the
1727 * first entry in the Link Quality command's rate table.
1729 * 1) Calculate actual throughput (success ratio * expected throughput, see
1730 * table below) for current initial rate. Do this only if enough frames
1731 * have been attempted to make the value meaningful: at least 6 failed
1732 * tx attempts, or at least 8 successes. If not enough, don't try rate
1735 * 2) Find available rates adjacent to current initial rate. Available means:
1736 * a) supported by hardware &&
1737 * b) supported by association &&
1738 * c) within any constraints selected by user
1740 * 3) Gather measured throughputs for adjacent rates. These might not have
1741 * enough history to calculate a throughput. That's okay, we might try
1742 * using one of them anyway!
1744 * 4) Try decreasing rate if, for current rate:
1745 * a) success ratio is < 15% ||
1746 * b) lower adjacent rate has better measured throughput ||
1747 * c) higher adjacent rate has worse throughput, and lower is unmeasured
1749 * As a sanity check, if decrease was determined above, leave rate
1751 * a) lower rate unavailable
1752 * b) success ratio at current rate > 85% (very good)
1753 * c) current measured throughput is better than expected throughput
1754 * of lower rate (under perfect 100% tx conditions, see table below)
1756 * 5) Try increasing rate if, for current rate:
1757 * a) success ratio is < 15% ||
1758 * b) both adjacent rates' throughputs are unmeasured (try it!) ||
1759 * b) higher adjacent rate has better measured throughput ||
1760 * c) lower adjacent rate has worse throughput, and higher is unmeasured
1762 * As a sanity check, if increase was determined above, leave rate
1764 * a) success ratio at current rate < 70%. This is not particularly
1765 * good performance; higher rate is sure to have poorer success.
1767 * 6) Re-evaluate the rate after each tx frame. If working with block-
1768 * acknowledge, history and statistics may be calculated for the entire
1769 * block (including prior history that fits within the history windows),
1770 * before re-evaluation.
1772 * FINDING BEST STARTING MODULATION MODE:
1774 * After working with a modulation mode for a "while" (and doing rate scaling),
1775 * the driver searches for a new initial mode in an attempt to improve
1776 * throughput. The "while" is measured by numbers of attempted frames:
1778 * For legacy mode, search for new mode after:
1779 * 480 successful frames, or 160 failed frames
1780 * For high-throughput modes (SISO or MIMO), search for new mode after:
1781 * 4500 successful frames, or 400 failed frames
1783 * Mode switch possibilities are (3 for each mode):
1786 * Change antenna, try SISO (if HT association), try MIMO (if HT association)
1788 * Change antenna, try MIMO, try shortened guard interval (SGI)
1790 * Try SISO antenna A, SISO antenna B, try shortened guard interval (SGI)
1792 * When trying a new mode, use the same bit rate as the old/current mode when
1793 * trying antenna switches and shortened guard interval. When switching to
1794 * SISO from MIMO or legacy, or to MIMO from SISO or legacy, use a rate
1795 * for which the expected throughput (under perfect conditions) is about the
1796 * same or slightly better than the actual measured throughput delivered by
1797 * the old/current mode.
1799 * Actual throughput can be estimated by multiplying the expected throughput
1800 * by the success ratio (successful / attempted tx frames). Frame size is
1801 * not considered in this calculation; it assumes that frame size will average
1802 * out to be fairly consistent over several samples. The following are
1803 * metric values for expected throughput assuming 100% success ratio.
1804 * Only G band has support for CCK rates:
1806 * RATE: 1 2 5 11 6 9 12 18 24 36 48 54 60
1808 * G: 7 13 35 58 40 57 72 98 121 154 177 186 186
1809 * A: 0 0 0 0 40 57 72 98 121 154 177 186 186
1810 * SISO 20MHz: 0 0 0 0 42 42 76 102 124 159 183 193 202
1811 * SGI SISO 20MHz: 0 0 0 0 46 46 82 110 132 168 192 202 211
1812 * MIMO 20MHz: 0 0 0 0 74 74 123 155 179 214 236 244 251
1813 * SGI MIMO 20MHz: 0 0 0 0 81 81 131 164 188 222 243 251 257
1814 * SISO 40MHz: 0 0 0 0 77 77 127 160 184 220 242 250 257
1815 * SGI SISO 40MHz: 0 0 0 0 83 83 135 169 193 229 250 257 264
1816 * MIMO 40MHz: 0 0 0 0 123 123 182 214 235 264 279 285 289
1817 * SGI MIMO 40MHz: 0 0 0 0 131 131 191 222 242 270 284 289 293
1819 * After the new mode has been tried for a short while (minimum of 6 failed
1820 * frames or 8 successful frames), compare success ratio and actual throughput
1821 * estimate of the new mode with the old. If either is better with the new
1822 * mode, continue to use the new mode.
1824 * Continue comparing modes until all 3 possibilities have been tried.
1825 * If moving from legacy to HT, try all 3 possibilities from the new HT
1826 * mode. After trying all 3, a best mode is found. Continue to use this mode
1827 * for the longer "while" described above (e.g. 480 successful frames for
1828 * legacy), and then repeat the search process.
1831 struct iwl_link_quality_cmd {
1833 /* Index of destination/recipient station in uCode's station table */
1836 __le16 control; /* not used */
1837 struct iwl_link_qual_general_params general_params;
1838 struct iwl_link_qual_agg_params agg_params;
1841 * Rate info; when using rate-scaling, Tx command's initial_rate_index
1842 * specifies 1st Tx rate attempted, via index into this table.
1843 * 4965 works its way through table when retrying Tx.
1846 __le32 rate_n_flags; /* RATE_MCS_*, IWL_RATE_* */
1847 } rs_table[LINK_QUAL_MAX_RETRY_NUM];
1849 } __attribute__ ((packed));
1852 * REPLY_BT_CONFIG = 0x9b (command, has simple generic response)
1854 * 3945 and 4965 support hardware handshake with Bluetooth device on
1855 * same platform. Bluetooth device alerts wireless device when it will Tx;
1856 * wireless device can delay or kill its own Tx to accomodate.
1858 struct iwl4965_bt_cmd {
1863 __le32 kill_ack_mask;
1864 __le32 kill_cts_mask;
1865 } __attribute__ ((packed));
1867 /******************************************************************************
1869 * Spectrum Management (802.11h) Commands, Responses, Notifications:
1871 *****************************************************************************/
1874 * Spectrum Management
1876 #define MEASUREMENT_FILTER_FLAG (RXON_FILTER_PROMISC_MSK | \
1877 RXON_FILTER_CTL2HOST_MSK | \
1878 RXON_FILTER_ACCEPT_GRP_MSK | \
1879 RXON_FILTER_DIS_DECRYPT_MSK | \
1880 RXON_FILTER_DIS_GRP_DECRYPT_MSK | \
1881 RXON_FILTER_ASSOC_MSK | \
1882 RXON_FILTER_BCON_AWARE_MSK)
1884 struct iwl4965_measure_channel {
1885 __le32 duration; /* measurement duration in extended beacon
1887 u8 channel; /* channel to measure */
1888 u8 type; /* see enum iwl4965_measure_type */
1890 } __attribute__ ((packed));
1893 * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (command)
1895 struct iwl4965_spectrum_cmd {
1896 __le16 len; /* number of bytes starting from token */
1897 u8 token; /* token id */
1898 u8 id; /* measurement id -- 0 or 1 */
1899 u8 origin; /* 0 = TGh, 1 = other, 2 = TGk */
1900 u8 periodic; /* 1 = periodic */
1901 __le16 path_loss_timeout;
1902 __le32 start_time; /* start time in extended beacon format */
1904 __le32 flags; /* rxon flags */
1905 __le32 filter_flags; /* rxon filter flags */
1906 __le16 channel_count; /* minimum 1, maximum 10 */
1908 struct iwl4965_measure_channel channels[10];
1909 } __attribute__ ((packed));
1912 * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (response)
1914 struct iwl4965_spectrum_resp {
1916 u8 id; /* id of the prior command replaced, or 0xff */
1917 __le16 status; /* 0 - command will be handled
1918 * 1 - cannot handle (conflicts with another
1920 } __attribute__ ((packed));
1922 enum iwl4965_measurement_state {
1923 IWL_MEASUREMENT_START = 0,
1924 IWL_MEASUREMENT_STOP = 1,
1927 enum iwl4965_measurement_status {
1928 IWL_MEASUREMENT_OK = 0,
1929 IWL_MEASUREMENT_CONCURRENT = 1,
1930 IWL_MEASUREMENT_CSA_CONFLICT = 2,
1931 IWL_MEASUREMENT_TGH_CONFLICT = 3,
1933 IWL_MEASUREMENT_STOPPED = 6,
1934 IWL_MEASUREMENT_TIMEOUT = 7,
1935 IWL_MEASUREMENT_PERIODIC_FAILED = 8,
1938 #define NUM_ELEMENTS_IN_HISTOGRAM 8
1940 struct iwl4965_measurement_histogram {
1941 __le32 ofdm[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 0.8usec counts */
1942 __le32 cck[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 1usec counts */
1943 } __attribute__ ((packed));
1945 /* clear channel availability counters */
1946 struct iwl4965_measurement_cca_counters {
1949 } __attribute__ ((packed));
1951 enum iwl4965_measure_type {
1952 IWL_MEASURE_BASIC = (1 << 0),
1953 IWL_MEASURE_CHANNEL_LOAD = (1 << 1),
1954 IWL_MEASURE_HISTOGRAM_RPI = (1 << 2),
1955 IWL_MEASURE_HISTOGRAM_NOISE = (1 << 3),
1956 IWL_MEASURE_FRAME = (1 << 4),
1957 /* bits 5:6 are reserved */
1958 IWL_MEASURE_IDLE = (1 << 7),
1962 * SPECTRUM_MEASURE_NOTIFICATION = 0x75 (notification only, not a command)
1964 struct iwl4965_spectrum_notification {
1965 u8 id; /* measurement id -- 0 or 1 */
1967 u8 channel_index; /* index in measurement channel list */
1968 u8 state; /* 0 - start, 1 - stop */
1969 __le32 start_time; /* lower 32-bits of TSF */
1970 u8 band; /* 0 - 5.2GHz, 1 - 2.4GHz */
1972 u8 type; /* see enum iwl4965_measurement_type */
1974 /* NOTE: cca_ofdm, cca_cck, basic_type, and histogram are only only
1975 * valid if applicable for measurement type requested. */
1976 __le32 cca_ofdm; /* cca fraction time in 40Mhz clock periods */
1977 __le32 cca_cck; /* cca fraction time in 44Mhz clock periods */
1978 __le32 cca_time; /* channel load time in usecs */
1979 u8 basic_type; /* 0 - bss, 1 - ofdm preamble, 2 -
1982 struct iwl4965_measurement_histogram histogram;
1983 __le32 stop_time; /* lower 32-bits of TSF */
1984 __le32 status; /* see iwl4965_measurement_status */
1985 } __attribute__ ((packed));
1987 /******************************************************************************
1989 * Power Management Commands, Responses, Notifications:
1991 *****************************************************************************/
1994 * struct iwl4965_powertable_cmd - Power Table Command
1995 * @flags: See below:
1997 * POWER_TABLE_CMD = 0x77 (command, has simple generic response)
2000 * bit 0 - '0' Driver not allow power management
2001 * '1' Driver allow PM (use rest of parameters)
2002 * uCode send sleep notifications:
2003 * bit 1 - '0' Don't send sleep notification
2004 * '1' send sleep notification (SEND_PM_NOTIFICATION)
2006 * bit 2 - '0' PM have to walk up every DTIM
2007 * '1' PM could sleep over DTIM till listen Interval.
2009 * bit 3 - '0' (PCI_LINK_CTRL & 0x1)
2010 * '1' !(PCI_LINK_CTRL & 0x1)
2012 * bit 31/30- '00' use both mac/xtal sleeps
2013 * '01' force Mac sleep
2014 * '10' force xtal sleep
2017 * NOTE: if sleep_interval[SLEEP_INTRVL_TABLE_SIZE-1] > DTIM period then
2018 * ucode assume sleep over DTIM is allowed and we don't need to wakeup
2021 #define IWL_POWER_VEC_SIZE 5
2023 #define IWL_POWER_DRIVER_ALLOW_SLEEP_MSK __constant_cpu_to_le16(1 << 0)
2024 #define IWL_POWER_SLEEP_OVER_DTIM_MSK __constant_cpu_to_le16(1 << 2)
2025 #define IWL_POWER_PCI_PM_MSK __constant_cpu_to_le16(1 << 3)
2026 #define IWL_POWER_FAST_PD __constant_cpu_to_le16(1 << 4)
2028 struct iwl4965_powertable_cmd {
2030 u8 keep_alive_seconds;
2032 __le32 rx_data_timeout;
2033 __le32 tx_data_timeout;
2034 __le32 sleep_interval[IWL_POWER_VEC_SIZE];
2035 __le32 keep_alive_beacons;
2036 } __attribute__ ((packed));
2039 * PM_SLEEP_NOTIFICATION = 0x7A (notification only, not a command)
2040 * 3945 and 4965 identical.
2042 struct iwl4965_sleep_notification {
2049 } __attribute__ ((packed));
2051 /* Sleep states. 3945 and 4965 identical. */
2053 IWL_PM_NO_SLEEP = 0,
2055 IWL_PM_SLP_FULL_MAC_UNASSOCIATE = 2,
2056 IWL_PM_SLP_FULL_MAC_CARD_STATE = 3,
2058 IWL_PM_SLP_REPENT = 5,
2059 IWL_PM_WAKEUP_BY_TIMER = 6,
2060 IWL_PM_WAKEUP_BY_DRIVER = 7,
2061 IWL_PM_WAKEUP_BY_RFKILL = 8,
2063 IWL_PM_NUM_OF_MODES = 12,
2067 * REPLY_CARD_STATE_CMD = 0xa0 (command, has simple generic response)
2069 #define CARD_STATE_CMD_DISABLE 0x00 /* Put card to sleep */
2070 #define CARD_STATE_CMD_ENABLE 0x01 /* Wake up card */
2071 #define CARD_STATE_CMD_HALT 0x02 /* Power down permanently */
2072 struct iwl4965_card_state_cmd {
2073 __le32 status; /* CARD_STATE_CMD_* request new power state */
2074 } __attribute__ ((packed));
2077 * CARD_STATE_NOTIFICATION = 0xa1 (notification only, not a command)
2079 struct iwl4965_card_state_notif {
2081 } __attribute__ ((packed));
2083 #define HW_CARD_DISABLED 0x01
2084 #define SW_CARD_DISABLED 0x02
2085 #define RF_CARD_DISABLED 0x04
2086 #define RXON_CARD_DISABLED 0x10
2088 struct iwl4965_ct_kill_config {
2090 __le32 critical_temperature_M;
2091 __le32 critical_temperature_R;
2092 } __attribute__ ((packed));
2094 /******************************************************************************
2096 * Scan Commands, Responses, Notifications:
2098 *****************************************************************************/
2101 * struct iwl4965_scan_channel - entry in REPLY_SCAN_CMD channel table
2103 * One for each channel in the scan list.
2104 * Each channel can independently select:
2105 * 1) SSID for directed active scans
2106 * 2) Txpower setting (for rate specified within Tx command)
2107 * 3) How long to stay on-channel (behavior may be modified by quiet_time,
2108 * quiet_plcp_th, good_CRC_th)
2110 * To avoid uCode errors, make sure the following are true (see comments
2111 * under struct iwl4965_scan_cmd about max_out_time and quiet_time):
2112 * 1) If using passive_dwell (i.e. passive_dwell != 0):
2113 * active_dwell <= passive_dwell (< max_out_time if max_out_time != 0)
2114 * 2) quiet_time <= active_dwell
2115 * 3) If restricting off-channel time (i.e. max_out_time !=0):
2116 * passive_dwell < max_out_time
2117 * active_dwell < max_out_time
2119 struct iwl4965_scan_channel {
2121 * type is defined as:
2122 * 0:0 1 = active, 0 = passive
2123 * 1:4 SSID direct bit map; if a bit is set, then corresponding
2124 * SSID IE is transmitted in probe request.
2128 u8 channel; /* band is selected by iwl4965_scan_cmd "flags" field */
2129 struct iwl4965_tx_power tpc;
2130 __le16 active_dwell; /* in 1024-uSec TU (time units), typ 5-50 */
2131 __le16 passive_dwell; /* in 1024-uSec TU (time units), typ 20-500 */
2132 } __attribute__ ((packed));
2135 * struct iwl4965_ssid_ie - directed scan network information element
2137 * Up to 4 of these may appear in REPLY_SCAN_CMD, selected by "type" field
2138 * in struct iwl4965_scan_channel; each channel may select different ssids from
2139 * among the 4 entries. SSID IEs get transmitted in reverse order of entry.
2141 struct iwl4965_ssid_ie {
2145 } __attribute__ ((packed));
2147 #define PROBE_OPTION_MAX 0x4
2148 #define TX_CMD_LIFE_TIME_INFINITE __constant_cpu_to_le32(0xFFFFFFFF)
2149 #define IWL_GOOD_CRC_TH __constant_cpu_to_le16(1)
2150 #define IWL_MAX_SCAN_SIZE 1024
2153 * REPLY_SCAN_CMD = 0x80 (command)
2155 * The hardware scan command is very powerful; the driver can set it up to
2156 * maintain (relatively) normal network traffic while doing a scan in the
2157 * background. The max_out_time and suspend_time control the ratio of how
2158 * long the device stays on an associated network channel ("service channel")
2159 * vs. how long it's away from the service channel, i.e. tuned to other channels
2162 * max_out_time is the max time off-channel (in usec), and suspend_time
2163 * is how long (in "extended beacon" format) that the scan is "suspended"
2164 * after returning to the service channel. That is, suspend_time is the
2165 * time that we stay on the service channel, doing normal work, between
2166 * scan segments. The driver may set these parameters differently to support
2167 * scanning when associated vs. not associated, and light vs. heavy traffic
2168 * loads when associated.
2170 * After receiving this command, the device's scan engine does the following;
2172 * 1) Sends SCAN_START notification to driver
2173 * 2) Checks to see if it has time to do scan for one channel
2174 * 3) Sends NULL packet, with power-save (PS) bit set to 1,
2175 * to tell AP that we're going off-channel
2176 * 4) Tunes to first channel in scan list, does active or passive scan
2177 * 5) Sends SCAN_RESULT notification to driver
2178 * 6) Checks to see if it has time to do scan on *next* channel in list
2179 * 7) Repeats 4-6 until it no longer has time to scan the next channel
2180 * before max_out_time expires
2181 * 8) Returns to service channel
2182 * 9) Sends NULL packet with PS=0 to tell AP that we're back
2183 * 10) Stays on service channel until suspend_time expires
2184 * 11) Repeats entire process 2-10 until list is complete
2185 * 12) Sends SCAN_COMPLETE notification
2187 * For fast, efficient scans, the scan command also has support for staying on
2188 * a channel for just a short time, if doing active scanning and getting no
2189 * responses to the transmitted probe request. This time is controlled by
2190 * quiet_time, and the number of received packets below which a channel is
2191 * considered "quiet" is controlled by quiet_plcp_threshold.
2193 * For active scanning on channels that have regulatory restrictions against
2194 * blindly transmitting, the scan can listen before transmitting, to make sure
2195 * that there is already legitimate activity on the channel. If enough
2196 * packets are cleanly received on the channel (controlled by good_CRC_th,
2197 * typical value 1), the scan engine starts transmitting probe requests.
2199 * Driver must use separate scan commands for 2.4 vs. 5 GHz bands.
2201 * To avoid uCode errors, see timing restrictions described under
2202 * struct iwl4965_scan_channel.
2204 struct iwl4965_scan_cmd {
2207 u8 channel_count; /* # channels in channel list */
2208 __le16 quiet_time; /* dwell only this # millisecs on quiet channel
2209 * (only for active scan) */
2210 __le16 quiet_plcp_th; /* quiet chnl is < this # pkts (typ. 1) */
2211 __le16 good_CRC_th; /* passive -> active promotion threshold */
2212 __le16 rx_chain; /* RXON_RX_CHAIN_* */
2213 __le32 max_out_time; /* max usec to be away from associated (service)
2215 __le32 suspend_time; /* pause scan this long (in "extended beacon
2216 * format") when returning to service chnl:
2217 * 3945; 31:24 # beacons, 19:0 additional usec,
2218 * 4965; 31:22 # beacons, 21:0 additional usec.
2220 __le32 flags; /* RXON_FLG_* */
2221 __le32 filter_flags; /* RXON_FILTER_* */
2223 /* For active scans (set to all-0s for passive scans).
2224 * Does not include payload. Must specify Tx rate; no rate scaling. */
2225 struct iwl_tx_cmd tx_cmd;
2227 /* For directed active scans (set to all-0s otherwise) */
2228 struct iwl4965_ssid_ie direct_scan[PROBE_OPTION_MAX];
2231 * Probe request frame, followed by channel list.
2233 * Size of probe request frame is specified by byte count in tx_cmd.
2234 * Channel list follows immediately after probe request frame.
2235 * Number of channels in list is specified by channel_count.
2236 * Each channel in list is of type:
2238 * struct iwl4965_scan_channel channels[0];
2240 * NOTE: Only one band of channels can be scanned per pass. You
2241 * must not mix 2.4GHz channels and 5.2GHz channels, and you must wait
2242 * for one scan to complete (i.e. receive SCAN_COMPLETE_NOTIFICATION)
2243 * before requesting another scan.
2246 } __attribute__ ((packed));
2248 /* Can abort will notify by complete notification with abort status. */
2249 #define CAN_ABORT_STATUS __constant_cpu_to_le32(0x1)
2250 /* complete notification statuses */
2251 #define ABORT_STATUS 0x2
2254 * REPLY_SCAN_CMD = 0x80 (response)
2256 struct iwl4965_scanreq_notification {
2257 __le32 status; /* 1: okay, 2: cannot fulfill request */
2258 } __attribute__ ((packed));
2261 * SCAN_START_NOTIFICATION = 0x82 (notification only, not a command)
2263 struct iwl4965_scanstart_notification {
2266 __le32 beacon_timer;
2271 } __attribute__ ((packed));
2273 #define SCAN_OWNER_STATUS 0x1;
2274 #define MEASURE_OWNER_STATUS 0x2;
2276 #define NUMBER_OF_STATISTICS 1 /* first __le32 is good CRC */
2278 * SCAN_RESULTS_NOTIFICATION = 0x83 (notification only, not a command)
2280 struct iwl4965_scanresults_notification {
2286 __le32 statistics[NUMBER_OF_STATISTICS];
2287 } __attribute__ ((packed));
2290 * SCAN_COMPLETE_NOTIFICATION = 0x84 (notification only, not a command)
2292 struct iwl4965_scancomplete_notification {
2293 u8 scanned_channels;
2299 } __attribute__ ((packed));
2302 /******************************************************************************
2304 * IBSS/AP Commands and Notifications:
2306 *****************************************************************************/
2309 * BEACON_NOTIFICATION = 0x90 (notification only, not a command)
2311 struct iwl4965_beacon_notif {
2312 struct iwl4965_tx_resp beacon_notify_hdr;
2315 __le32 ibss_mgr_status;
2316 } __attribute__ ((packed));
2319 * REPLY_TX_BEACON = 0x91 (command, has simple generic response)
2321 struct iwl4965_tx_beacon_cmd {
2322 struct iwl_tx_cmd tx;
2326 struct ieee80211_hdr frame[0]; /* beacon frame */
2327 } __attribute__ ((packed));
2329 /******************************************************************************
2331 * Statistics Commands and Notifications:
2333 *****************************************************************************/
2335 #define IWL_TEMP_CONVERT 260
2337 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
2338 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
2339 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
2341 /* Used for passing to driver number of successes and failures per rate */
2342 struct rate_histogram {
2344 __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS];
2345 __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS];
2346 __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS];
2349 __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS];
2350 __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS];
2351 __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS];
2353 } __attribute__ ((packed));
2355 /* statistics command response */
2357 struct statistics_rx_phy {
2363 __le32 early_overrun_err;
2365 __le32 false_alarm_cnt;
2366 __le32 fina_sync_err_cnt;
2368 __le32 fina_timeout;
2369 __le32 unresponded_rts;
2370 __le32 rxe_frame_limit_overrun;
2371 __le32 sent_ack_cnt;
2372 __le32 sent_cts_cnt;
2373 __le32 sent_ba_rsp_cnt;
2374 __le32 dsp_self_kill;
2375 __le32 mh_format_err;
2376 __le32 re_acq_main_rssi_sum;
2378 } __attribute__ ((packed));
2380 struct statistics_rx_ht_phy {
2383 __le32 early_overrun_err;
2386 __le32 mh_format_err;
2387 __le32 agg_crc32_good;
2388 __le32 agg_mpdu_cnt;
2391 } __attribute__ ((packed));
2393 struct statistics_rx_non_phy {
2394 __le32 bogus_cts; /* CTS received when not expecting CTS */
2395 __le32 bogus_ack; /* ACK received when not expecting ACK */
2396 __le32 non_bssid_frames; /* number of frames with BSSID that
2397 * doesn't belong to the STA BSSID */
2398 __le32 filtered_frames; /* count frames that were dumped in the
2399 * filtering process */
2400 __le32 non_channel_beacons; /* beacons with our bss id but not on
2401 * our serving channel */
2402 __le32 channel_beacons; /* beacons with our bss id and in our
2403 * serving channel */
2404 __le32 num_missed_bcon; /* number of missed beacons */
2405 __le32 adc_rx_saturation_time; /* count in 0.8us units the time the
2406 * ADC was in saturation */
2407 __le32 ina_detection_search_time;/* total time (in 0.8us) searched
2409 __le32 beacon_silence_rssi_a; /* RSSI silence after beacon frame */
2410 __le32 beacon_silence_rssi_b; /* RSSI silence after beacon frame */
2411 __le32 beacon_silence_rssi_c; /* RSSI silence after beacon frame */
2412 __le32 interference_data_flag; /* flag for interference data
2413 * availability. 1 when data is
2415 __le32 channel_load; /* counts RX Enable time in uSec */
2416 __le32 dsp_false_alarms; /* DSP false alarm (both OFDM
2417 * and CCK) counter */
2418 __le32 beacon_rssi_a;
2419 __le32 beacon_rssi_b;
2420 __le32 beacon_rssi_c;
2421 __le32 beacon_energy_a;
2422 __le32 beacon_energy_b;
2423 __le32 beacon_energy_c;
2424 } __attribute__ ((packed));
2426 struct statistics_rx {
2427 struct statistics_rx_phy ofdm;
2428 struct statistics_rx_phy cck;
2429 struct statistics_rx_non_phy general;
2430 struct statistics_rx_ht_phy ofdm_ht;
2431 } __attribute__ ((packed));
2433 struct statistics_tx_non_phy_agg {
2435 __le32 ba_reschedule_frames;
2436 __le32 scd_query_agg_frame_cnt;
2437 __le32 scd_query_no_agg;
2438 __le32 scd_query_agg;
2439 __le32 scd_query_mismatch;
2440 __le32 frame_not_ready;
2442 __le32 bt_prio_kill;
2443 __le32 rx_ba_rsp_cnt;
2446 } __attribute__ ((packed));
2448 struct statistics_tx {
2449 __le32 preamble_cnt;
2450 __le32 rx_detected_cnt;
2451 __le32 bt_prio_defer_cnt;
2452 __le32 bt_prio_kill_cnt;
2453 __le32 few_bytes_cnt;
2456 __le32 expected_ack_cnt;
2457 __le32 actual_ack_cnt;
2458 __le32 dump_msdu_cnt;
2459 __le32 burst_abort_next_frame_mismatch_cnt;
2460 __le32 burst_abort_missing_next_frame_cnt;
2461 __le32 cts_timeout_collision;
2462 __le32 ack_or_ba_timeout_collision;
2463 struct statistics_tx_non_phy_agg agg;
2464 } __attribute__ ((packed));
2466 struct statistics_dbg {
2470 } __attribute__ ((packed));
2472 struct statistics_div {
2479 } __attribute__ ((packed));
2481 struct statistics_general {
2483 __le32 temperature_m;
2484 struct statistics_dbg dbg;
2488 __le32 ttl_timestamp;
2489 struct statistics_div div;
2490 __le32 rx_enable_counter;
2494 } __attribute__ ((packed));
2497 * REPLY_STATISTICS_CMD = 0x9c,
2498 * 3945 and 4965 identical.
2500 * This command triggers an immediate response containing uCode statistics.
2501 * The response is in the same format as STATISTICS_NOTIFICATION 0x9d, below.
2503 * If the CLEAR_STATS configuration flag is set, uCode will clear its
2504 * internal copy of the statistics (counters) after issuing the response.
2505 * This flag does not affect STATISTICS_NOTIFICATIONs after beacons (see below).
2507 * If the DISABLE_NOTIF configuration flag is set, uCode will not issue
2508 * STATISTICS_NOTIFICATIONs after received beacons (see below). This flag
2509 * does not affect the response to the REPLY_STATISTICS_CMD 0x9c itself.
2511 #define IWL_STATS_CONF_CLEAR_STATS __constant_cpu_to_le32(0x1) /* see above */
2512 #define IWL_STATS_CONF_DISABLE_NOTIF __constant_cpu_to_le32(0x2)/* see above */
2513 struct iwl4965_statistics_cmd {
2514 __le32 configuration_flags; /* IWL_STATS_CONF_* */
2515 } __attribute__ ((packed));
2518 * STATISTICS_NOTIFICATION = 0x9d (notification only, not a command)
2520 * By default, uCode issues this notification after receiving a beacon
2521 * while associated. To disable this behavior, set DISABLE_NOTIF flag in the
2522 * REPLY_STATISTICS_CMD 0x9c, above.
2524 * Statistics counters continue to increment beacon after beacon, but are
2525 * cleared when changing channels or when driver issues REPLY_STATISTICS_CMD
2526 * 0x9c with CLEAR_STATS bit set (see above).
2528 * uCode also issues this notification during scans. uCode clears statistics
2529 * appropriately so that each notification contains statistics for only the
2530 * one channel that has just been scanned.
2532 #define STATISTICS_REPLY_FLG_BAND_24G_MSK __constant_cpu_to_le32(0x2)
2533 #define STATISTICS_REPLY_FLG_FAT_MODE_MSK __constant_cpu_to_le32(0x8)
2534 struct iwl4965_notif_statistics {
2536 struct statistics_rx rx;
2537 struct statistics_tx tx;
2538 struct statistics_general general;
2539 } __attribute__ ((packed));
2543 * MISSED_BEACONS_NOTIFICATION = 0xa2 (notification only, not a command)
2545 /* if ucode missed CONSECUTIVE_MISSED_BCONS_TH beacons in a row,
2546 * then this notification will be sent. */
2547 #define CONSECUTIVE_MISSED_BCONS_TH 20
2549 struct iwl4965_missed_beacon_notif {
2550 __le32 consequtive_missed_beacons;
2551 __le32 total_missed_becons;
2552 __le32 num_expected_beacons;
2553 __le32 num_recvd_beacons;
2554 } __attribute__ ((packed));
2557 /******************************************************************************
2559 * Rx Calibration Commands:
2561 * With the uCode used for open source drivers, most Tx calibration (except
2562 * for Tx Power) and most Rx calibration is done by uCode during the
2563 * "initialize" phase of uCode boot. Driver must calibrate only:
2565 * 1) Tx power (depends on temperature), described elsewhere
2566 * 2) Receiver gain balance (optimize MIMO, and detect disconnected antennas)
2567 * 3) Receiver sensitivity (to optimize signal detection)
2569 *****************************************************************************/
2572 * SENSITIVITY_CMD = 0xa8 (command, has simple generic response)
2574 * This command sets up the Rx signal detector for a sensitivity level that
2575 * is high enough to lock onto all signals within the associated network,
2576 * but low enough to ignore signals that are below a certain threshold, so as
2577 * not to have too many "false alarms". False alarms are signals that the
2578 * Rx DSP tries to lock onto, but then discards after determining that they
2581 * The optimum number of false alarms is between 5 and 50 per 200 TUs
2582 * (200 * 1024 uSecs, i.e. 204.8 milliseconds) of actual Rx time (i.e.
2583 * time listening, not transmitting). Driver must adjust sensitivity so that
2584 * the ratio of actual false alarms to actual Rx time falls within this range.
2586 * While associated, uCode delivers STATISTICS_NOTIFICATIONs after each
2587 * received beacon. These provide information to the driver to analyze the
2588 * sensitivity. Don't analyze statistics that come in from scanning, or any
2589 * other non-associated-network source. Pertinent statistics include:
2591 * From "general" statistics (struct statistics_rx_non_phy):
2593 * (beacon_energy_[abc] & 0x0FF00) >> 8 (unsigned, higher value is lower level)
2594 * Measure of energy of desired signal. Used for establishing a level
2595 * below which the device does not detect signals.
2597 * (beacon_silence_rssi_[abc] & 0x0FF00) >> 8 (unsigned, units in dB)
2598 * Measure of background noise in silent period after beacon.
2601 * uSecs of actual Rx time during beacon period (varies according to
2602 * how much time was spent transmitting).
2604 * From "cck" and "ofdm" statistics (struct statistics_rx_phy), separately:
2607 * Signal locks abandoned early (before phy-level header).
2610 * Signal locks abandoned late (during phy-level header).
2612 * NOTE: Both false_alarm_cnt and plcp_err increment monotonically from
2613 * beacon to beacon, i.e. each value is an accumulation of all errors
2614 * before and including the latest beacon. Values will wrap around to 0
2615 * after counting up to 2^32 - 1. Driver must differentiate vs.
2616 * previous beacon's values to determine # false alarms in the current
2619 * Total number of false alarms = false_alarms + plcp_errs
2621 * For OFDM, adjust the following table entries in struct iwl_sensitivity_cmd
2622 * (notice that the start points for OFDM are at or close to settings for
2623 * maximum sensitivity):
2626 * HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX 90 / 85 / 120
2627 * HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX 170 / 170 / 210
2628 * HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX 105 / 105 / 140
2629 * HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX 220 / 220 / 270
2631 * If actual rate of OFDM false alarms (+ plcp_errors) is too high
2632 * (greater than 50 for each 204.8 msecs listening), reduce sensitivity
2633 * by *adding* 1 to all 4 of the table entries above, up to the max for
2634 * each entry. Conversely, if false alarm rate is too low (less than 5
2635 * for each 204.8 msecs listening), *subtract* 1 from each entry to
2636 * increase sensitivity.
2638 * For CCK sensitivity, keep track of the following:
2640 * 1). 20-beacon history of maximum background noise, indicated by
2641 * (beacon_silence_rssi_[abc] & 0x0FF00), units in dB, across the
2642 * 3 receivers. For any given beacon, the "silence reference" is
2643 * the maximum of last 60 samples (20 beacons * 3 receivers).
2645 * 2). 10-beacon history of strongest signal level, as indicated
2646 * by (beacon_energy_[abc] & 0x0FF00) >> 8, across the 3 receivers,
2647 * i.e. the strength of the signal through the best receiver at the
2648 * moment. These measurements are "upside down", with lower values
2649 * for stronger signals, so max energy will be *minimum* value.
2651 * Then for any given beacon, the driver must determine the *weakest*
2652 * of the strongest signals; this is the minimum level that needs to be
2653 * successfully detected, when using the best receiver at the moment.
2654 * "Max cck energy" is the maximum (higher value means lower energy!)
2655 * of the last 10 minima. Once this is determined, driver must add
2656 * a little margin by adding "6" to it.
2658 * 3). Number of consecutive beacon periods with too few false alarms.
2659 * Reset this to 0 at the first beacon period that falls within the
2660 * "good" range (5 to 50 false alarms per 204.8 milliseconds rx).
2662 * Then, adjust the following CCK table entries in struct iwl_sensitivity_cmd
2663 * (notice that the start points for CCK are at maximum sensitivity):
2666 * HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX 125 / 125 / 200
2667 * HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX 200 / 200 / 400
2668 * HD_MIN_ENERGY_CCK_DET_INDEX 100 / 0 / 100
2670 * If actual rate of CCK false alarms (+ plcp_errors) is too high
2671 * (greater than 50 for each 204.8 msecs listening), method for reducing
2674 * 1) *Add* 3 to value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX,
2677 * 2) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX is < 160,
2678 * sensitivity has been reduced a significant amount; bring it up to
2679 * a moderate 161. Otherwise, *add* 3, up to max 200.
2681 * 3) a) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX is > 160,
2682 * sensitivity has been reduced only a moderate or small amount;
2683 * *subtract* 2 from value in HD_MIN_ENERGY_CCK_DET_INDEX,
2684 * down to min 0. Otherwise (if gain has been significantly reduced),
2685 * don't change the HD_MIN_ENERGY_CCK_DET_INDEX value.
2687 * b) Save a snapshot of the "silence reference".
2689 * If actual rate of CCK false alarms (+ plcp_errors) is too low
2690 * (less than 5 for each 204.8 msecs listening), method for increasing
2691 * sensitivity is used only if:
2693 * 1a) Previous beacon did not have too many false alarms
2694 * 1b) AND difference between previous "silence reference" and current
2695 * "silence reference" (prev - current) is 2 or more,
2696 * OR 2) 100 or more consecutive beacon periods have had rate of
2697 * less than 5 false alarms per 204.8 milliseconds rx time.
2699 * Method for increasing sensitivity:
2701 * 1) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX,
2704 * 2) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX,
2707 * 3) *Add* 2 to value in HD_MIN_ENERGY_CCK_DET_INDEX, up to max 100.
2709 * If actual rate of CCK false alarms (+ plcp_errors) is within good range
2710 * (between 5 and 50 for each 204.8 msecs listening):
2712 * 1) Save a snapshot of the silence reference.
2714 * 2) If previous beacon had too many CCK false alarms (+ plcp_errors),
2715 * give some extra margin to energy threshold by *subtracting* 8
2716 * from value in HD_MIN_ENERGY_CCK_DET_INDEX.
2718 * For all cases (too few, too many, good range), make sure that the CCK
2719 * detection threshold (energy) is below the energy level for robust
2720 * detection over the past 10 beacon periods, the "Max cck energy".
2721 * Lower values mean higher energy; this means making sure that the value
2722 * in HD_MIN_ENERGY_CCK_DET_INDEX is at or *above* "Max cck energy".
2724 * Driver should set the following entries to fixed values:
2726 * HD_MIN_ENERGY_OFDM_DET_INDEX 100
2727 * HD_BARKER_CORR_TH_ADD_MIN_INDEX 190
2728 * HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX 390
2729 * HD_OFDM_ENERGY_TH_IN_INDEX 62
2733 * Table entries in SENSITIVITY_CMD (struct iwl_sensitivity_cmd)
2735 #define HD_TABLE_SIZE (11) /* number of entries */
2736 #define HD_MIN_ENERGY_CCK_DET_INDEX (0) /* table indexes */
2737 #define HD_MIN_ENERGY_OFDM_DET_INDEX (1)
2738 #define HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX (2)
2739 #define HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX (3)
2740 #define HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX (4)
2741 #define HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX (5)
2742 #define HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX (6)
2743 #define HD_BARKER_CORR_TH_ADD_MIN_INDEX (7)
2744 #define HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX (8)
2745 #define HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX (9)
2746 #define HD_OFDM_ENERGY_TH_IN_INDEX (10)
2748 /* Control field in struct iwl_sensitivity_cmd */
2749 #define SENSITIVITY_CMD_CONTROL_DEFAULT_TABLE __constant_cpu_to_le16(0)
2750 #define SENSITIVITY_CMD_CONTROL_WORK_TABLE __constant_cpu_to_le16(1)
2753 * struct iwl_sensitivity_cmd
2754 * @control: (1) updates working table, (0) updates default table
2755 * @table: energy threshold values, use HD_* as index into table
2757 * Always use "1" in "control" to update uCode's working table and DSP.
2759 struct iwl_sensitivity_cmd {
2760 __le16 control; /* always use "1" */
2761 __le16 table[HD_TABLE_SIZE]; /* use HD_* as index */
2762 } __attribute__ ((packed));
2766 * REPLY_PHY_CALIBRATION_CMD = 0xb0 (command, has simple generic response)
2768 * This command sets the relative gains of 4965's 3 radio receiver chains.
2770 * After the first association, driver should accumulate signal and noise
2771 * statistics from the STATISTICS_NOTIFICATIONs that follow the first 20
2772 * beacons from the associated network (don't collect statistics that come
2773 * in from scanning, or any other non-network source).
2775 * DISCONNECTED ANTENNA:
2777 * Driver should determine which antennas are actually connected, by comparing
2778 * average beacon signal levels for the 3 Rx chains. Accumulate (add) the
2779 * following values over 20 beacons, one accumulator for each of the chains
2780 * a/b/c, from struct statistics_rx_non_phy:
2782 * beacon_rssi_[abc] & 0x0FF (unsigned, units in dB)
2784 * Find the strongest signal from among a/b/c. Compare the other two to the
2785 * strongest. If any signal is more than 15 dB (times 20, unless you
2786 * divide the accumulated values by 20) below the strongest, the driver
2787 * considers that antenna to be disconnected, and should not try to use that
2788 * antenna/chain for Rx or Tx. If both A and B seem to be disconnected,
2789 * driver should declare the stronger one as connected, and attempt to use it
2790 * (A and B are the only 2 Tx chains!).
2795 * Driver should balance the 3 receivers (but just the ones that are connected
2796 * to antennas, see above) for gain, by comparing the average signal levels
2797 * detected during the silence after each beacon (background noise).
2798 * Accumulate (add) the following values over 20 beacons, one accumulator for
2799 * each of the chains a/b/c, from struct statistics_rx_non_phy:
2801 * beacon_silence_rssi_[abc] & 0x0FF (unsigned, units in dB)
2803 * Find the weakest background noise level from among a/b/c. This Rx chain
2804 * will be the reference, with 0 gain adjustment. Attenuate other channels by
2805 * finding noise difference:
2807 * (accum_noise[i] - accum_noise[reference]) / 30
2809 * The "30" adjusts the dB in the 20 accumulated samples to units of 1.5 dB.
2810 * For use in diff_gain_[abc] fields of struct iwl_calibration_cmd, the
2811 * driver should limit the difference results to a range of 0-3 (0-4.5 dB),
2812 * and set bit 2 to indicate "reduce gain". The value for the reference
2813 * (weakest) chain should be "0".
2815 * diff_gain_[abc] bit fields:
2816 * 2: (1) reduce gain, (0) increase gain
2817 * 1-0: amount of gain, units of 1.5 dB
2820 /* "Differential Gain" opcode used in REPLY_PHY_CALIBRATION_CMD. */
2821 #define PHY_CALIBRATE_DIFF_GAIN_CMD (7)
2823 struct iwl4965_calibration_cmd {
2824 u8 opCode; /* PHY_CALIBRATE_DIFF_GAIN_CMD (7) */
2825 u8 flags; /* not used */
2827 s8 diff_gain_a; /* see above */
2831 } __attribute__ ((packed));
2833 /* Phy calibration command for 5000 series */
2836 IWL5000_PHY_CALIBRATE_DC_CMD = 8,
2837 IWL5000_PHY_CALIBRATE_LO_CMD = 9,
2838 IWL5000_PHY_CALIBRATE_RX_BB_CMD = 10,
2839 IWL5000_PHY_CALIBRATE_TX_IQ_CMD = 11,
2840 IWL5000_PHY_CALIBRATE_RX_IQ_CMD = 12,
2841 IWL5000_PHY_CALIBRATION_NOISE_CMD = 13,
2842 IWL5000_PHY_CALIBRATE_AGC_TABLE_CMD = 14,
2843 IWL5000_PHY_CALIBRATE_CRYSTAL_FRQ_CMD = 15,
2844 IWL5000_PHY_CALIBRATE_BASE_BAND_CMD = 16,
2845 IWL5000_PHY_CALIBRATE_TX_IQ_PERD_CMD = 17,
2846 IWL5000_PHY_CALIBRATE_CHAIN_NOISE_RESET_CMD = 18,
2847 IWL5000_PHY_CALIBRATE_CHAIN_NOISE_GAIN_CMD = 19,
2851 CALIBRATION_CFG_CMD = 0x65,
2852 CALIBRATION_RES_NOTIFICATION = 0x66,
2853 CALIBRATION_COMPLETE_NOTIFICATION = 0x67
2856 struct iwl_cal_crystal_freq_cmd {
2859 } __attribute__ ((packed));
2861 struct iwl5000_calibration {
2866 struct iwl_cal_crystal_freq_cmd data;
2867 } __attribute__ ((packed));
2869 #define IWL_CALIB_INIT_CFG_ALL __constant_cpu_to_le32(0xffffffff)
2871 struct iwl_calib_cfg_elmnt_s {
2877 } __attribute__ ((packed));
2879 struct iwl_calib_cfg_status_s {
2880 struct iwl_calib_cfg_elmnt_s once;
2881 struct iwl_calib_cfg_elmnt_s perd;
2883 } __attribute__ ((packed));
2885 struct iwl5000_calib_cfg_cmd {
2886 struct iwl_calib_cfg_status_s ucd_calib_cfg;
2887 struct iwl_calib_cfg_status_s drv_calib_cfg;
2889 } __attribute__ ((packed));
2891 struct iwl5000_calib_hdr {
2896 } __attribute__ ((packed));
2898 struct iwl5000_calibration_chain_noise_reset_cmd {
2899 u8 op_code; /* IWL5000_PHY_CALIBRATE_CHAIN_NOISE_RESET_CMD */
2900 u8 flags; /* not used */
2902 } __attribute__ ((packed));
2904 struct iwl5000_calibration_chain_noise_gain_cmd {
2905 u8 op_code; /* IWL5000_PHY_CALIBRATE_CHAIN_NOISE_GAIN_CMD */
2906 u8 flags; /* not used */
2911 } __attribute__ ((packed));
2913 /******************************************************************************
2915 * Miscellaneous Commands:
2917 *****************************************************************************/
2920 * LEDs Command & Response
2921 * REPLY_LEDS_CMD = 0x48 (command, has simple generic response)
2923 * For each of 3 possible LEDs (Activity/Link/Tech, selected by "id" field),
2924 * this command turns it on or off, or sets up a periodic blinking cycle.
2926 struct iwl4965_led_cmd {
2927 __le32 interval; /* "interval" in uSec */
2928 u8 id; /* 1: Activity, 2: Link, 3: Tech */
2929 u8 off; /* # intervals off while blinking;
2930 * "0", with >0 "on" value, turns LED on */
2931 u8 on; /* # intervals on while blinking;
2932 * "0", regardless of "off", turns LED off */
2934 } __attribute__ ((packed));
2937 * Coexistence WIFI/WIMAX Command
2938 * COEX_PRIORITY_TABLE_CMD = 0x5a
2942 COEX_UNASSOC_IDLE = 0,
2943 COEX_UNASSOC_MANUAL_SCAN = 1,
2944 COEX_UNASSOC_AUTO_SCAN = 2,
2945 COEX_CALIBRATION = 3,
2946 COEX_PERIODIC_CALIBRATION = 4,
2947 COEX_CONNECTION_ESTAB = 5,
2948 COEX_ASSOCIATED_IDLE = 6,
2949 COEX_ASSOC_MANUAL_SCAN = 7,
2950 COEX_ASSOC_AUTO_SCAN = 8,
2951 COEX_ASSOC_ACTIVE_LEVEL = 9,
2954 COEX_STAND_ALONE_DEBUG = 12,
2955 COEX_IPAN_ASSOC_LEVEL = 13,
2958 COEX_NUM_OF_EVENTS = 16
2961 struct iwl_wimax_coex_event_entry {
2966 } __attribute__ ((packed));
2968 /* COEX flag masks */
2970 /* Staion table is valid */
2971 #define COEX_FLAGS_STA_TABLE_VALID_MSK (0x1)
2972 /* UnMask wakeup src at unassociated sleep */
2973 #define COEX_FLAGS_UNASSOC_WA_UNMASK_MSK (0x4)
2974 /* UnMask wakeup src at associated sleep */
2975 #define COEX_FLAGS_ASSOC_WA_UNMASK_MSK (0x8)
2976 /* Enable CoEx feature. */
2977 #define COEX_FLAGS_COEX_ENABLE_MSK (0x80)
2979 struct iwl_wimax_coex_cmd {
2982 struct iwl_wimax_coex_event_entry sta_prio[COEX_NUM_OF_EVENTS];
2983 } __attribute__ ((packed));
2985 /******************************************************************************
2987 * Union of all expected notifications/responses:
2989 *****************************************************************************/
2991 struct iwl_rx_packet {
2993 struct iwl_cmd_header hdr;
2995 struct iwl_alive_resp alive_frame;
2996 struct iwl4965_rx_frame rx_frame;
2997 struct iwl4965_tx_resp tx_resp;
2998 struct iwl4965_spectrum_notification spectrum_notif;
2999 struct iwl4965_csa_notification csa_notif;
3000 struct iwl_error_resp err_resp;
3001 struct iwl4965_card_state_notif card_state_notif;
3002 struct iwl4965_beacon_notif beacon_status;
3003 struct iwl_add_sta_resp add_sta;
3004 struct iwl_rem_sta_resp rem_sta;
3005 struct iwl4965_sleep_notification sleep_notif;
3006 struct iwl4965_spectrum_resp spectrum;
3007 struct iwl4965_notif_statistics stats;
3008 struct iwl4965_compressed_ba_resp compressed_ba;
3009 struct iwl4965_missed_beacon_notif missed_beacon;
3010 struct iwl5000_calibration calib;
3014 } __attribute__ ((packed));
3016 #define IWL_RX_FRAME_SIZE (4 + sizeof(struct iwl4965_rx_frame))
3018 #endif /* __iwl4965_commands_h__ */