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.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
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 * Intel Linux Wireless <ilw@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.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
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
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 __iwl_commands_h__
70 #define __iwl_commands_h__
72 /* uCode version contains 4 values: Major/Minor/API/Serial */
73 #define IWL_UCODE_MAJOR(ver) (((ver) & 0xFF000000) >> 24)
74 #define IWL_UCODE_MINOR(ver) (((ver) & 0x00FF0000) >> 16)
75 #define IWL_UCODE_API(ver) (((ver) & 0x0000FF00) >> 8)
76 #define IWL_UCODE_SERIAL(ver) ((ver) & 0x000000FF)
82 /* RXON and QOS commands */
84 REPLY_RXON_ASSOC = 0x11,
85 REPLY_QOS_PARAM = 0x13,
86 REPLY_RXON_TIMING = 0x14,
88 /* Multi-Station support */
90 REPLY_REMOVE_STA = 0x19, /* not used */
91 REPLY_REMOVE_ALL_STA = 0x1a, /* not used */
97 REPLY_3945_RX = 0x1b, /* 3945 only */
99 REPLY_RATE_SCALE = 0x47, /* 3945 only */
100 REPLY_LEDS_CMD = 0x48,
101 REPLY_TX_LINK_QUALITY_CMD = 0x4e, /* 4965 only */
103 /* WiMAX coexistence */
104 COEX_PRIORITY_TABLE_CMD = 0x5a, /*5000 only */
105 COEX_MEDIUM_NOTIFICATION = 0x5b,
106 COEX_EVENT_CMD = 0x5c,
109 CALIBRATION_CFG_CMD = 0x65,
110 CALIBRATION_RES_NOTIFICATION = 0x66,
111 CALIBRATION_COMPLETE_NOTIFICATION = 0x67,
113 /* 802.11h related */
114 RADAR_NOTIFICATION = 0x70, /* not used */
115 REPLY_QUIET_CMD = 0x71, /* not used */
116 REPLY_CHANNEL_SWITCH = 0x72,
117 CHANNEL_SWITCH_NOTIFICATION = 0x73,
118 REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74,
119 SPECTRUM_MEASURE_NOTIFICATION = 0x75,
121 /* Power Management */
122 POWER_TABLE_CMD = 0x77,
123 PM_SLEEP_NOTIFICATION = 0x7A,
124 PM_DEBUG_STATISTIC_NOTIFIC = 0x7B,
126 /* Scan commands and notifications */
127 REPLY_SCAN_CMD = 0x80,
128 REPLY_SCAN_ABORT_CMD = 0x81,
129 SCAN_START_NOTIFICATION = 0x82,
130 SCAN_RESULTS_NOTIFICATION = 0x83,
131 SCAN_COMPLETE_NOTIFICATION = 0x84,
133 /* IBSS/AP commands */
134 BEACON_NOTIFICATION = 0x90,
135 REPLY_TX_BEACON = 0x91,
136 WHO_IS_AWAKE_NOTIFICATION = 0x94, /* not used */
138 /* Miscellaneous commands */
139 QUIET_NOTIFICATION = 0x96, /* not used */
140 REPLY_TX_PWR_TABLE_CMD = 0x97,
141 REPLY_TX_POWER_DBM_CMD = 0x98,
142 MEASURE_ABORT_NOTIFICATION = 0x99, /* not used */
144 /* Bluetooth device coexistence config command */
145 REPLY_BT_CONFIG = 0x9b,
148 REPLY_STATISTICS_CMD = 0x9c,
149 STATISTICS_NOTIFICATION = 0x9d,
151 /* RF-KILL commands and notifications */
152 REPLY_CARD_STATE_CMD = 0xa0,
153 CARD_STATE_NOTIFICATION = 0xa1,
155 /* Missed beacons notification */
156 MISSED_BEACONS_NOTIFICATION = 0xa2,
158 REPLY_CT_KILL_CONFIG_CMD = 0xa4,
159 SENSITIVITY_CMD = 0xa8,
160 REPLY_PHY_CALIBRATION_CMD = 0xb0,
161 REPLY_RX_PHY_CMD = 0xc0,
162 REPLY_RX_MPDU_CMD = 0xc1,
164 REPLY_COMPRESSED_BA = 0xc5,
168 /******************************************************************************
170 * Commonly used structures and definitions:
171 * Command header, rate_n_flags, txpower
173 *****************************************************************************/
175 /* iwl_cmd_header flags value */
176 #define IWL_CMD_FAILED_MSK 0x40
178 #define SEQ_TO_QUEUE(s) (((s) >> 8) & 0x1f)
179 #define QUEUE_TO_SEQ(q) (((q) & 0x1f) << 8)
180 #define SEQ_TO_INDEX(s) ((s) & 0xff)
181 #define INDEX_TO_SEQ(i) ((i) & 0xff)
182 #define SEQ_HUGE_FRAME cpu_to_le16(0x4000)
183 #define SEQ_RX_FRAME cpu_to_le16(0x8000)
186 * struct iwl_cmd_header
188 * This header format appears in the beginning of each command sent from the
189 * driver, and each response/notification received from uCode.
191 struct iwl_cmd_header {
192 u8 cmd; /* Command ID: REPLY_RXON, etc. */
193 u8 flags; /* 0:5 reserved, 6 abort, 7 internal */
195 * The driver sets up the sequence number to values of its choosing.
196 * uCode does not use this value, but passes it back to the driver
197 * when sending the response to each driver-originated command, so
198 * the driver can match the response to the command. Since the values
199 * don't get used by uCode, the driver may set up an arbitrary format.
201 * There is one exception: uCode sets bit 15 when it originates
202 * the response/notification, i.e. when the response/notification
203 * is not a direct response to a command sent by the driver. For
204 * example, uCode issues REPLY_3945_RX when it sends a received frame
205 * to the driver; it is not a direct response to any driver command.
207 * The Linux driver uses the following format:
209 * 0:7 tfd index - position within TX queue
212 * 14 huge - driver sets this to indicate command is in the
213 * 'huge' storage at the end of the command buffers
214 * 15 unsolicited RX or uCode-originated notification
218 /* command or response/notification data follows immediately */
220 } __attribute__ ((packed));
223 * iwlagn rate_n_flags bit fields
225 * rate_n_flags format is used in following iwlagn commands:
226 * REPLY_RX (response only)
227 * REPLY_RX_MPDU (response only)
228 * REPLY_TX (both command and response)
229 * REPLY_TX_LINK_QUALITY_CMD
231 * High-throughput (HT) rate format for bits 7:0 (bit 8 must be "1"):
241 * 4-3: 0) Single stream (SISO)
242 * 1) Dual stream (MIMO)
243 * 2) Triple stream (MIMO)
245 * 5: Value of 0x20 in bits 7:0 indicates 6 Mbps FAT duplicate data
247 * Legacy OFDM rate format for bits 7:0 (bit 8 must be "0", bit 9 "0"):
257 * Legacy CCK rate format for bits 7:0 (bit 8 must be "0", bit 9 "1"):
263 #define RATE_MCS_CODE_MSK 0x7
264 #define RATE_MCS_SPATIAL_POS 3
265 #define RATE_MCS_SPATIAL_MSK 0x18
266 #define RATE_MCS_HT_DUP_POS 5
267 #define RATE_MCS_HT_DUP_MSK 0x20
269 /* Bit 8: (1) HT format, (0) legacy format in bits 7:0 */
270 #define RATE_MCS_FLAGS_POS 8
271 #define RATE_MCS_HT_POS 8
272 #define RATE_MCS_HT_MSK 0x100
274 /* Bit 9: (1) CCK, (0) OFDM. HT (bit 8) must be "0" for this bit to be valid */
275 #define RATE_MCS_CCK_POS 9
276 #define RATE_MCS_CCK_MSK 0x200
278 /* Bit 10: (1) Use Green Field preamble */
279 #define RATE_MCS_GF_POS 10
280 #define RATE_MCS_GF_MSK 0x400
282 /* Bit 11: (1) Use 40Mhz FAT chnl width, (0) use 20 MHz legacy chnl width */
283 #define RATE_MCS_FAT_POS 11
284 #define RATE_MCS_FAT_MSK 0x800
286 /* Bit 12: (1) Duplicate data on both 20MHz chnls. FAT (bit 11) must be set. */
287 #define RATE_MCS_DUP_POS 12
288 #define RATE_MCS_DUP_MSK 0x1000
290 /* Bit 13: (1) Short guard interval (0.4 usec), (0) normal GI (0.8 usec) */
291 #define RATE_MCS_SGI_POS 13
292 #define RATE_MCS_SGI_MSK 0x2000
295 * rate_n_flags Tx antenna masks
296 * 4965 has 2 transmitters
297 * 5100 has 1 transmitter B
298 * 5150 has 1 transmitter A
299 * 5300 has 3 transmitters
300 * 5350 has 3 transmitters
303 #define RATE_MCS_ANT_POS 14
304 #define RATE_MCS_ANT_A_MSK 0x04000
305 #define RATE_MCS_ANT_B_MSK 0x08000
306 #define RATE_MCS_ANT_C_MSK 0x10000
307 #define RATE_MCS_ANT_ABC_MSK 0x1C000
308 #define RATE_ANT_NUM 3
310 #define POWER_TABLE_NUM_ENTRIES 33
311 #define POWER_TABLE_NUM_HT_OFDM_ENTRIES 32
312 #define POWER_TABLE_CCK_ENTRY 32
315 * union iwl4965_tx_power_dual_stream
317 * Host format used for REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH
318 * Use __le32 version (struct tx_power_dual_stream) when building command.
320 * Driver provides radio gain and DSP attenuation settings to device in pairs,
321 * one value for each transmitter chain. The first value is for transmitter A,
322 * second for transmitter B.
324 * For SISO bit rates, both values in a pair should be identical.
325 * For MIMO rates, one value may be different from the other,
326 * in order to balance the Tx output between the two transmitters.
328 * See more details in doc for TXPOWER in iwl-4965-hw.h.
330 union iwl4965_tx_power_dual_stream {
333 u8 dsp_predis_atten[2];
339 * struct tx_power_dual_stream
341 * Table entries in REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH
343 * Same format as iwl_tx_power_dual_stream, but __le32
345 struct tx_power_dual_stream {
347 } __attribute__ ((packed));
350 * struct iwl4965_tx_power_db
352 * Entire table within REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH
354 struct iwl4965_tx_power_db {
355 struct tx_power_dual_stream power_tbl[POWER_TABLE_NUM_ENTRIES];
356 } __attribute__ ((packed));
359 * Command REPLY_TX_POWER_DBM_CMD = 0x98
360 * struct iwl5000_tx_power_dbm_cmd
362 #define IWL50_TX_POWER_AUTO 0x7f
363 #define IWL50_TX_POWER_NO_CLOSED (0x1 << 6)
365 struct iwl5000_tx_power_dbm_cmd {
366 s8 global_lmt; /*in half-dBm (e.g. 30 = 15 dBm) */
368 s8 srv_chan_lmt; /*in half-dBm (e.g. 30 = 15 dBm) */
370 } __attribute__ ((packed));
372 /******************************************************************************
374 * Alive and Error Commands & Responses:
376 *****************************************************************************/
378 #define UCODE_VALID_OK cpu_to_le32(0x1)
379 #define INITIALIZE_SUBTYPE (9)
382 * ("Initialize") REPLY_ALIVE = 0x1 (response only, not a command)
384 * uCode issues this "initialize alive" notification once the initialization
385 * uCode image has completed its work, and is ready to load the runtime image.
386 * This is the *first* "alive" notification that the driver will receive after
387 * rebooting uCode; the "initialize" alive is indicated by subtype field == 9.
389 * See comments documenting "BSM" (bootstrap state machine).
391 * For 4965, this notification contains important calibration data for
392 * calculating txpower settings:
394 * 1) Power supply voltage indication. The voltage sensor outputs higher
395 * values for lower voltage, and vice verse.
397 * 2) Temperature measurement parameters, for each of two channel widths
398 * (20 MHz and 40 MHz) supported by the radios. Temperature sensing
399 * is done via one of the receiver chains, and channel width influences
402 * 3) Tx gain compensation to balance 4965's 2 Tx chains for MIMO operation,
403 * for each of 5 frequency ranges.
405 struct iwl_init_alive_resp {
411 u8 ver_subtype; /* "9" for initialize alive */
413 __le32 log_event_table_ptr;
414 __le32 error_event_table_ptr;
418 /* calibration values from "initialize" uCode */
419 __le32 voltage; /* signed, higher value is lower voltage */
420 __le32 therm_r1[2]; /* signed, 1st for normal, 2nd for FAT channel*/
421 __le32 therm_r2[2]; /* signed */
422 __le32 therm_r3[2]; /* signed */
423 __le32 therm_r4[2]; /* signed */
424 __le32 tx_atten[5][2]; /* signed MIMO gain comp, 5 freq groups,
426 } __attribute__ ((packed));
430 * REPLY_ALIVE = 0x1 (response only, not a command)
432 * uCode issues this "alive" notification once the runtime image is ready
433 * to receive commands from the driver. This is the *second* "alive"
434 * notification that the driver will receive after rebooting uCode;
435 * this "alive" is indicated by subtype field != 9.
437 * See comments documenting "BSM" (bootstrap state machine).
439 * This response includes two pointers to structures within the device's
440 * data SRAM (access via HBUS_TARG_MEM_* regs) that are useful for debugging:
442 * 1) log_event_table_ptr indicates base of the event log. This traces
443 * a 256-entry history of uCode execution within a circular buffer.
444 * Its header format is:
446 * __le32 log_size; log capacity (in number of entries)
447 * __le32 type; (1) timestamp with each entry, (0) no timestamp
448 * __le32 wraps; # times uCode has wrapped to top of circular buffer
449 * __le32 write_index; next circular buffer entry that uCode would fill
451 * The header is followed by the circular buffer of log entries. Entries
452 * with timestamps have the following format:
454 * __le32 event_id; range 0 - 1500
455 * __le32 timestamp; low 32 bits of TSF (of network, if associated)
456 * __le32 data; event_id-specific data value
458 * Entries without timestamps contain only event_id and data.
460 * 2) error_event_table_ptr indicates base of the error log. This contains
461 * information about any uCode error that occurs. For 4965, the format
462 * of the error log is:
464 * __le32 valid; (nonzero) valid, (0) log is empty
465 * __le32 error_id; type of error
466 * __le32 pc; program counter
467 * __le32 blink1; branch link
468 * __le32 blink2; branch link
469 * __le32 ilink1; interrupt link
470 * __le32 ilink2; interrupt link
471 * __le32 data1; error-specific data
472 * __le32 data2; error-specific data
473 * __le32 line; source code line of error
474 * __le32 bcon_time; beacon timer
475 * __le32 tsf_low; network timestamp function timer
476 * __le32 tsf_hi; network timestamp function timer
478 * The Linux driver can print both logs to the system log when a uCode error
481 struct iwl_alive_resp {
487 u8 ver_subtype; /* not "9" for runtime alive */
489 __le32 log_event_table_ptr; /* SRAM address for event log */
490 __le32 error_event_table_ptr; /* SRAM address for error log */
493 } __attribute__ ((packed));
498 * REPLY_ERROR = 0x2 (response only, not a command)
500 struct iwl_error_resp {
504 __le16 bad_cmd_seq_num;
507 } __attribute__ ((packed));
509 /******************************************************************************
511 * RXON Commands & Responses:
513 *****************************************************************************/
516 * Rx config defines & structure
518 /* rx_config device types */
520 RXON_DEV_TYPE_AP = 1,
521 RXON_DEV_TYPE_ESS = 3,
522 RXON_DEV_TYPE_IBSS = 4,
523 RXON_DEV_TYPE_SNIFFER = 6,
527 #define RXON_RX_CHAIN_DRIVER_FORCE_MSK cpu_to_le16(0x1 << 0)
528 #define RXON_RX_CHAIN_VALID_MSK cpu_to_le16(0x7 << 1)
529 #define RXON_RX_CHAIN_VALID_POS (1)
530 #define RXON_RX_CHAIN_FORCE_SEL_MSK cpu_to_le16(0x7 << 4)
531 #define RXON_RX_CHAIN_FORCE_SEL_POS (4)
532 #define RXON_RX_CHAIN_FORCE_MIMO_SEL_MSK cpu_to_le16(0x7 << 7)
533 #define RXON_RX_CHAIN_FORCE_MIMO_SEL_POS (7)
534 #define RXON_RX_CHAIN_CNT_MSK cpu_to_le16(0x3 << 10)
535 #define RXON_RX_CHAIN_CNT_POS (10)
536 #define RXON_RX_CHAIN_MIMO_CNT_MSK cpu_to_le16(0x3 << 12)
537 #define RXON_RX_CHAIN_MIMO_CNT_POS (12)
538 #define RXON_RX_CHAIN_MIMO_FORCE_MSK cpu_to_le16(0x1 << 14)
539 #define RXON_RX_CHAIN_MIMO_FORCE_POS (14)
541 /* rx_config flags */
542 /* band & modulation selection */
543 #define RXON_FLG_BAND_24G_MSK cpu_to_le32(1 << 0)
544 #define RXON_FLG_CCK_MSK cpu_to_le32(1 << 1)
545 /* auto detection enable */
546 #define RXON_FLG_AUTO_DETECT_MSK cpu_to_le32(1 << 2)
547 /* TGg protection when tx */
548 #define RXON_FLG_TGG_PROTECT_MSK cpu_to_le32(1 << 3)
549 /* cck short slot & preamble */
550 #define RXON_FLG_SHORT_SLOT_MSK cpu_to_le32(1 << 4)
551 #define RXON_FLG_SHORT_PREAMBLE_MSK cpu_to_le32(1 << 5)
552 /* antenna selection */
553 #define RXON_FLG_DIS_DIV_MSK cpu_to_le32(1 << 7)
554 #define RXON_FLG_ANT_SEL_MSK cpu_to_le32(0x0f00)
555 #define RXON_FLG_ANT_A_MSK cpu_to_le32(1 << 8)
556 #define RXON_FLG_ANT_B_MSK cpu_to_le32(1 << 9)
557 /* radar detection enable */
558 #define RXON_FLG_RADAR_DETECT_MSK cpu_to_le32(1 << 12)
559 #define RXON_FLG_TGJ_NARROW_BAND_MSK cpu_to_le32(1 << 13)
560 /* rx response to host with 8-byte TSF
561 * (according to ON_AIR deassertion) */
562 #define RXON_FLG_TSF2HOST_MSK cpu_to_le32(1 << 15)
566 #define RXON_FLG_CTRL_CHANNEL_LOC_POS (22)
567 #define RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK cpu_to_le32(0x1 << 22)
569 #define RXON_FLG_HT_OPERATING_MODE_POS (23)
571 #define RXON_FLG_HT_PROT_MSK cpu_to_le32(0x1 << 23)
572 #define RXON_FLG_FAT_PROT_MSK cpu_to_le32(0x2 << 23)
574 #define RXON_FLG_CHANNEL_MODE_POS (25)
575 #define RXON_FLG_CHANNEL_MODE_MSK cpu_to_le32(0x3 << 25)
576 #define RXON_FLG_CHANNEL_MODE_PURE_40_MSK cpu_to_le32(0x1 << 25)
577 #define RXON_FLG_CHANNEL_MODE_MIXED_MSK cpu_to_le32(0x2 << 25)
578 /* CTS to self (if spec allows) flag */
579 #define RXON_FLG_SELF_CTS_EN cpu_to_le32(0x1<<30)
581 /* rx_config filter flags */
582 /* accept all data frames */
583 #define RXON_FILTER_PROMISC_MSK cpu_to_le32(1 << 0)
584 /* pass control & management to host */
585 #define RXON_FILTER_CTL2HOST_MSK cpu_to_le32(1 << 1)
586 /* accept multi-cast */
587 #define RXON_FILTER_ACCEPT_GRP_MSK cpu_to_le32(1 << 2)
588 /* don't decrypt uni-cast frames */
589 #define RXON_FILTER_DIS_DECRYPT_MSK cpu_to_le32(1 << 3)
590 /* don't decrypt multi-cast frames */
591 #define RXON_FILTER_DIS_GRP_DECRYPT_MSK cpu_to_le32(1 << 4)
592 /* STA is associated */
593 #define RXON_FILTER_ASSOC_MSK cpu_to_le32(1 << 5)
594 /* transfer to host non bssid beacons in associated state */
595 #define RXON_FILTER_BCON_AWARE_MSK cpu_to_le32(1 << 6)
598 * REPLY_RXON = 0x10 (command, has simple generic response)
600 * RXON tunes the radio tuner to a service channel, and sets up a number
601 * of parameters that are used primarily for Rx, but also for Tx operations.
603 * NOTE: When tuning to a new channel, driver must set the
604 * RXON_FILTER_ASSOC_MSK to 0. This will clear station-dependent
605 * info within the device, including the station tables, tx retry
606 * rate tables, and txpower tables. Driver must build a new station
607 * table and txpower table before transmitting anything on the RXON
610 * NOTE: All RXONs wipe clean the internal txpower table. Driver must
611 * issue a new REPLY_TX_PWR_TABLE_CMD after each REPLY_RXON (0x10),
612 * regardless of whether RXON_FILTER_ASSOC_MSK is set.
614 struct iwl4965_rxon_cmd {
619 u8 wlap_bssid_addr[6];
630 u8 ofdm_ht_single_stream_basic_rates;
631 u8 ofdm_ht_dual_stream_basic_rates;
632 } __attribute__ ((packed));
634 /* 5000 HW just extend this command */
635 struct iwl_rxon_cmd {
640 u8 wlap_bssid_addr[6];
651 u8 ofdm_ht_single_stream_basic_rates;
652 u8 ofdm_ht_dual_stream_basic_rates;
653 u8 ofdm_ht_triple_stream_basic_rates;
655 __le16 acquisition_data;
657 } __attribute__ ((packed));
659 struct iwl5000_rxon_assoc_cmd {
665 u8 ofdm_ht_single_stream_basic_rates;
666 u8 ofdm_ht_dual_stream_basic_rates;
667 u8 ofdm_ht_triple_stream_basic_rates;
669 __le16 rx_chain_select_flags;
670 __le16 acquisition_data;
672 } __attribute__ ((packed));
675 * REPLY_RXON_ASSOC = 0x11 (command, has simple generic response)
677 struct iwl4965_rxon_assoc_cmd {
682 u8 ofdm_ht_single_stream_basic_rates;
683 u8 ofdm_ht_dual_stream_basic_rates;
684 __le16 rx_chain_select_flags;
686 } __attribute__ ((packed));
688 #define IWL_CONN_MAX_LISTEN_INTERVAL 10
691 * REPLY_RXON_TIMING = 0x14 (command, has simple generic response)
693 struct iwl_rxon_time_cmd {
695 __le16 beacon_interval;
697 __le32 beacon_init_val;
698 __le16 listen_interval;
700 } __attribute__ ((packed));
703 * REPLY_CHANNEL_SWITCH = 0x72 (command, has simple generic response)
705 struct iwl_channel_switch_cmd {
710 __le32 rxon_filter_flags;
712 struct iwl4965_tx_power_db tx_power;
713 } __attribute__ ((packed));
716 * CHANNEL_SWITCH_NOTIFICATION = 0x73 (notification only, not a command)
718 struct iwl_csa_notification {
721 __le32 status; /* 0 - OK, 1 - fail */
722 } __attribute__ ((packed));
724 /******************************************************************************
726 * Quality-of-Service (QOS) Commands & Responses:
728 *****************************************************************************/
731 * struct iwl_ac_qos -- QOS timing params for REPLY_QOS_PARAM
732 * One for each of 4 EDCA access categories in struct iwl_qosparam_cmd
734 * @cw_min: Contention window, start value in numbers of slots.
735 * Should be a power-of-2, minus 1. Device's default is 0x0f.
736 * @cw_max: Contention window, max value in numbers of slots.
737 * Should be a power-of-2, minus 1. Device's default is 0x3f.
738 * @aifsn: Number of slots in Arbitration Interframe Space (before
739 * performing random backoff timing prior to Tx). Device default 1.
740 * @edca_txop: Length of Tx opportunity, in uSecs. Device default is 0.
742 * Device will automatically increase contention window by (2*CW) + 1 for each
743 * transmission retry. Device uses cw_max as a bit mask, ANDed with new CW
744 * value, to cap the CW value.
752 } __attribute__ ((packed));
754 /* QoS flags defines */
755 #define QOS_PARAM_FLG_UPDATE_EDCA_MSK cpu_to_le32(0x01)
756 #define QOS_PARAM_FLG_TGN_MSK cpu_to_le32(0x02)
757 #define QOS_PARAM_FLG_TXOP_TYPE_MSK cpu_to_le32(0x10)
759 /* Number of Access Categories (AC) (EDCA), queues 0..3 */
763 * REPLY_QOS_PARAM = 0x13 (command, has simple generic response)
765 * This command sets up timings for each of the 4 prioritized EDCA Tx FIFOs
766 * 0: Background, 1: Best Effort, 2: Video, 3: Voice.
768 struct iwl_qosparam_cmd {
770 struct iwl_ac_qos ac[AC_NUM];
771 } __attribute__ ((packed));
773 /******************************************************************************
775 * Add/Modify Stations Commands & Responses:
777 *****************************************************************************/
779 * Multi station support
782 /* Special, dedicated locations within device's station table */
784 #define IWL_MULTICAST_ID 1
786 #define IWL4965_BROADCAST_ID 31
787 #define IWL4965_STATION_COUNT 32
788 #define IWL5000_BROADCAST_ID 15
789 #define IWL5000_STATION_COUNT 16
791 #define IWL_STATION_COUNT 32 /* MAX(3945,4965)*/
792 #define IWL_INVALID_STATION 255
794 #define STA_FLG_PWR_SAVE_MSK cpu_to_le32(1 << 8);
795 #define STA_FLG_RTS_MIMO_PROT_MSK cpu_to_le32(1 << 17)
796 #define STA_FLG_AGG_MPDU_8US_MSK cpu_to_le32(1 << 18)
797 #define STA_FLG_MAX_AGG_SIZE_POS (19)
798 #define STA_FLG_MAX_AGG_SIZE_MSK cpu_to_le32(3 << 19)
799 #define STA_FLG_FAT_EN_MSK cpu_to_le32(1 << 21)
800 #define STA_FLG_MIMO_DIS_MSK cpu_to_le32(1 << 22)
801 #define STA_FLG_AGG_MPDU_DENSITY_POS (23)
802 #define STA_FLG_AGG_MPDU_DENSITY_MSK cpu_to_le32(7 << 23)
804 /* Use in mode field. 1: modify existing entry, 0: add new station entry */
805 #define STA_CONTROL_MODIFY_MSK 0x01
807 /* key flags __le16*/
808 #define STA_KEY_FLG_ENCRYPT_MSK cpu_to_le16(0x0007)
809 #define STA_KEY_FLG_NO_ENC cpu_to_le16(0x0000)
810 #define STA_KEY_FLG_WEP cpu_to_le16(0x0001)
811 #define STA_KEY_FLG_CCMP cpu_to_le16(0x0002)
812 #define STA_KEY_FLG_TKIP cpu_to_le16(0x0003)
814 #define STA_KEY_FLG_KEYID_POS 8
815 #define STA_KEY_FLG_INVALID cpu_to_le16(0x0800)
816 /* wep key is either from global key (0) or from station info array (1) */
817 #define STA_KEY_FLG_MAP_KEY_MSK cpu_to_le16(0x0008)
819 /* wep key in STA: 5-bytes (0) or 13-bytes (1) */
820 #define STA_KEY_FLG_KEY_SIZE_MSK cpu_to_le16(0x1000)
821 #define STA_KEY_MULTICAST_MSK cpu_to_le16(0x4000)
822 #define STA_KEY_MAX_NUM 8
824 /* Flags indicate whether to modify vs. don't change various station params */
825 #define STA_MODIFY_KEY_MASK 0x01
826 #define STA_MODIFY_TID_DISABLE_TX 0x02
827 #define STA_MODIFY_TX_RATE_MSK 0x04
828 #define STA_MODIFY_ADDBA_TID_MSK 0x08
829 #define STA_MODIFY_DELBA_TID_MSK 0x10
831 /* Receiver address (actually, Rx station's index into station table),
832 * combined with Traffic ID (QOS priority), in format used by Tx Scheduler */
833 #define BUILD_RAxTID(sta_id, tid) (((sta_id) << 4) + (tid))
835 struct iwl4965_keyinfo {
837 u8 tkip_rx_tsc_byte2; /* TSC[2] for key mix ph1 detection */
839 __le16 tkip_rx_ttak[5]; /* 10-byte unicast TKIP TTAK */
842 u8 key[16]; /* 16-byte unicast decryption key */
843 } __attribute__ ((packed));
848 u8 tkip_rx_tsc_byte2; /* TSC[2] for key mix ph1 detection */
850 __le16 tkip_rx_ttak[5]; /* 10-byte unicast TKIP TTAK */
853 u8 key[16]; /* 16-byte unicast decryption key */
854 __le64 tx_secur_seq_cnt;
855 __le64 hw_tkip_mic_rx_key;
856 __le64 hw_tkip_mic_tx_key;
857 } __attribute__ ((packed));
860 * struct sta_id_modify
861 * @addr[ETH_ALEN]: station's MAC address
862 * @sta_id: index of station in uCode's station table
863 * @modify_mask: STA_MODIFY_*, 1: modify, 0: don't change
865 * Driver selects unused table index when adding new station,
866 * or the index to a pre-existing station entry when modifying that station.
867 * Some indexes have special purposes (IWL_AP_ID, index 0, is for AP).
869 * modify_mask flags select which parameters to modify vs. leave alone.
871 struct sta_id_modify {
877 } __attribute__ ((packed));
880 * REPLY_ADD_STA = 0x18 (command)
882 * The device contains an internal table of per-station information,
883 * with info on security keys, aggregation parameters, and Tx rates for
884 * initial Tx attempt and any retries (4965 uses REPLY_TX_LINK_QUALITY_CMD,
885 * 3945 uses REPLY_RATE_SCALE to set up rate tables).
887 * REPLY_ADD_STA sets up the table entry for one station, either creating
888 * a new entry, or modifying a pre-existing one.
890 * NOTE: RXON command (without "associated" bit set) wipes the station table
891 * clean. Moving into RF_KILL state does this also. Driver must set up
892 * new station table before transmitting anything on the RXON channel
893 * (except active scans or active measurements; those commands carry
894 * their own txpower/rate setup data).
896 * When getting started on a new channel, driver must set up the
897 * IWL_BROADCAST_ID entry (last entry in the table). For a client
898 * station in a BSS, once an AP is selected, driver sets up the AP STA
899 * in the IWL_AP_ID entry (1st entry in the table). BROADCAST and AP
900 * are all that are needed for a BSS client station. If the device is
901 * used as AP, or in an IBSS network, driver must set up station table
902 * entries for all STAs in network, starting with index IWL_STA_ID.
904 struct iwl4965_addsta_cmd {
905 u8 mode; /* 1: modify existing, 0: add new station */
907 struct sta_id_modify sta;
908 struct iwl4965_keyinfo key;
909 __le32 station_flags; /* STA_FLG_* */
910 __le32 station_flags_msk; /* STA_FLG_* */
912 /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID)
913 * corresponding to bit (e.g. bit 5 controls TID 5).
914 * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */
915 __le16 tid_disable_tx;
919 /* TID for which to add block-ack support.
920 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
921 u8 add_immediate_ba_tid;
923 /* TID for which to remove block-ack support.
924 * Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */
925 u8 remove_immediate_ba_tid;
927 /* Starting Sequence Number for added block-ack support.
928 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
929 __le16 add_immediate_ba_ssn;
932 } __attribute__ ((packed));
935 struct iwl_addsta_cmd {
936 u8 mode; /* 1: modify existing, 0: add new station */
938 struct sta_id_modify sta;
939 struct iwl_keyinfo key;
940 __le32 station_flags; /* STA_FLG_* */
941 __le32 station_flags_msk; /* STA_FLG_* */
943 /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID)
944 * corresponding to bit (e.g. bit 5 controls TID 5).
945 * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */
946 __le16 tid_disable_tx;
950 /* TID for which to add block-ack support.
951 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
952 u8 add_immediate_ba_tid;
954 /* TID for which to remove block-ack support.
955 * Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */
956 u8 remove_immediate_ba_tid;
958 /* Starting Sequence Number for added block-ack support.
959 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
960 __le16 add_immediate_ba_ssn;
963 } __attribute__ ((packed));
966 #define ADD_STA_SUCCESS_MSK 0x1
967 #define ADD_STA_NO_ROOM_IN_TABLE 0x2
968 #define ADD_STA_NO_BLOCK_ACK_RESOURCE 0x4
969 #define ADD_STA_MODIFY_NON_EXIST_STA 0x8
971 * REPLY_ADD_STA = 0x18 (response)
973 struct iwl_add_sta_resp {
974 u8 status; /* ADD_STA_* */
975 } __attribute__ ((packed));
977 #define REM_STA_SUCCESS_MSK 0x1
979 * REPLY_REM_STA = 0x19 (response)
981 struct iwl_rem_sta_resp {
983 } __attribute__ ((packed));
986 * REPLY_REM_STA = 0x19 (command)
988 struct iwl_rem_sta_cmd {
989 u8 num_sta; /* number of removed stations */
991 u8 addr[ETH_ALEN]; /* MAC addr of the first station */
993 } __attribute__ ((packed));
996 * REPLY_WEP_KEY = 0x20
1005 } __attribute__ ((packed));
1007 struct iwl_wep_cmd {
1012 struct iwl_wep_key key[0];
1013 } __attribute__ ((packed));
1015 #define WEP_KEY_WEP_TYPE 1
1016 #define WEP_KEYS_MAX 4
1017 #define WEP_INVALID_OFFSET 0xff
1018 #define WEP_KEY_LEN_64 5
1019 #define WEP_KEY_LEN_128 13
1021 /******************************************************************************
1025 *****************************************************************************/
1027 #define RX_RES_STATUS_NO_CRC32_ERROR cpu_to_le32(1 << 0)
1028 #define RX_RES_STATUS_NO_RXE_OVERFLOW cpu_to_le32(1 << 1)
1030 #define RX_RES_PHY_FLAGS_BAND_24_MSK cpu_to_le16(1 << 0)
1031 #define RX_RES_PHY_FLAGS_MOD_CCK_MSK cpu_to_le16(1 << 1)
1032 #define RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK cpu_to_le16(1 << 2)
1033 #define RX_RES_PHY_FLAGS_NARROW_BAND_MSK cpu_to_le16(1 << 3)
1034 #define RX_RES_PHY_FLAGS_ANTENNA_MSK cpu_to_le16(0xf0)
1036 #define RX_RES_STATUS_SEC_TYPE_MSK (0x7 << 8)
1037 #define RX_RES_STATUS_SEC_TYPE_NONE (0x0 << 8)
1038 #define RX_RES_STATUS_SEC_TYPE_WEP (0x1 << 8)
1039 #define RX_RES_STATUS_SEC_TYPE_CCMP (0x2 << 8)
1040 #define RX_RES_STATUS_SEC_TYPE_TKIP (0x3 << 8)
1041 #define RX_RES_STATUS_SEC_TYPE_ERR (0x7 << 8)
1043 #define RX_RES_STATUS_STATION_FOUND (1<<6)
1044 #define RX_RES_STATUS_NO_STATION_INFO_MISMATCH (1<<7)
1046 #define RX_RES_STATUS_DECRYPT_TYPE_MSK (0x3 << 11)
1047 #define RX_RES_STATUS_NOT_DECRYPT (0x0 << 11)
1048 #define RX_RES_STATUS_DECRYPT_OK (0x3 << 11)
1049 #define RX_RES_STATUS_BAD_ICV_MIC (0x1 << 11)
1050 #define RX_RES_STATUS_BAD_KEY_TTAK (0x2 << 11)
1052 #define RX_MPDU_RES_STATUS_ICV_OK (0x20)
1053 #define RX_MPDU_RES_STATUS_MIC_OK (0x40)
1054 #define RX_MPDU_RES_STATUS_TTAK_OK (1 << 7)
1055 #define RX_MPDU_RES_STATUS_DEC_DONE_MSK (0x800)
1057 /* Fixed (non-configurable) rx data from phy */
1059 #define IWL49_RX_RES_PHY_CNT 14
1060 #define IWL49_RX_PHY_FLAGS_ANTENNAE_OFFSET (4)
1061 #define IWL49_RX_PHY_FLAGS_ANTENNAE_MASK (0x70)
1062 #define IWL49_AGC_DB_MASK (0x3f80) /* MASK(7,13) */
1063 #define IWL49_AGC_DB_POS (7)
1064 struct iwl4965_rx_non_cfg_phy {
1065 __le16 ant_selection; /* ant A bit 4, ant B bit 5, ant C bit 6 */
1066 __le16 agc_info; /* agc code 0:6, agc dB 7:13, reserved 14:15 */
1067 u8 rssi_info[6]; /* we use even entries, 0/2/4 for A/B/C rssi */
1069 } __attribute__ ((packed));
1072 #define IWL50_RX_RES_PHY_CNT 8
1073 #define IWL50_RX_RES_AGC_IDX 1
1074 #define IWL50_RX_RES_RSSI_AB_IDX 2
1075 #define IWL50_RX_RES_RSSI_C_IDX 3
1076 #define IWL50_OFDM_AGC_MSK 0xfe00
1077 #define IWL50_OFDM_AGC_BIT_POS 9
1078 #define IWL50_OFDM_RSSI_A_MSK 0x00ff
1079 #define IWL50_OFDM_RSSI_A_BIT_POS 0
1080 #define IWL50_OFDM_RSSI_B_MSK 0xff0000
1081 #define IWL50_OFDM_RSSI_B_BIT_POS 16
1082 #define IWL50_OFDM_RSSI_C_MSK 0x00ff
1083 #define IWL50_OFDM_RSSI_C_BIT_POS 0
1085 struct iwl5000_non_cfg_phy {
1086 __le32 non_cfg_phy[IWL50_RX_RES_PHY_CNT]; /* up to 8 phy entries */
1087 } __attribute__ ((packed));
1091 * REPLY_RX = 0xc3 (response only, not a command)
1092 * Used only for legacy (non 11n) frames.
1094 struct iwl_rx_phy_res {
1095 u8 non_cfg_phy_cnt; /* non configurable DSP phy data byte count */
1096 u8 cfg_phy_cnt; /* configurable DSP phy data byte count */
1097 u8 stat_id; /* configurable DSP phy data set ID */
1099 __le64 timestamp; /* TSF at on air rise */
1100 __le32 beacon_time_stamp; /* beacon at on-air rise */
1101 __le16 phy_flags; /* general phy flags: band, modulation, ... */
1102 __le16 channel; /* channel number */
1103 u8 non_cfg_phy_buf[32]; /* for various implementations of non_cfg_phy */
1104 __le32 rate_n_flags; /* RATE_MCS_* */
1105 __le16 byte_count; /* frame's byte-count */
1107 } __attribute__ ((packed));
1109 struct iwl4965_rx_mpdu_res_start {
1112 } __attribute__ ((packed));
1115 /******************************************************************************
1117 * Tx Commands & Responses:
1119 * Driver must place each REPLY_TX command into one of the prioritized Tx
1120 * queues in host DRAM, shared between driver and device (see comments for
1121 * SCD registers and Tx/Rx Queues). When the device's Tx scheduler and uCode
1122 * are preparing to transmit, the device pulls the Tx command over the PCI
1123 * bus via one of the device's Tx DMA channels, to fill an internal FIFO
1124 * from which data will be transmitted.
1126 * uCode handles all timing and protocol related to control frames
1127 * (RTS/CTS/ACK), based on flags in the Tx command. uCode and Tx scheduler
1128 * handle reception of block-acks; uCode updates the host driver via
1129 * REPLY_COMPRESSED_BA (4965).
1131 * uCode handles retrying Tx when an ACK is expected but not received.
1132 * This includes trying lower data rates than the one requested in the Tx
1133 * command, as set up by the REPLY_RATE_SCALE (for 3945) or
1134 * REPLY_TX_LINK_QUALITY_CMD (4965).
1136 * Driver sets up transmit power for various rates via REPLY_TX_PWR_TABLE_CMD.
1137 * This command must be executed after every RXON command, before Tx can occur.
1138 *****************************************************************************/
1140 /* REPLY_TX Tx flags field */
1142 /* 1: Use RTS/CTS protocol or CTS-to-self if spec allows it
1143 * before this frame. if CTS-to-self required check
1144 * RXON_FLG_SELF_CTS_EN status. */
1145 #define TX_CMD_FLG_RTS_CTS_MSK cpu_to_le32(1 << 0)
1147 /* 1: Use Request-To-Send protocol before this frame.
1148 * Mutually exclusive vs. TX_CMD_FLG_CTS_MSK. */
1149 #define TX_CMD_FLG_RTS_MSK cpu_to_le32(1 << 1)
1151 /* 1: Transmit Clear-To-Send to self before this frame.
1152 * Driver should set this for AUTH/DEAUTH/ASSOC-REQ/REASSOC mgmnt frames.
1153 * Mutually exclusive vs. TX_CMD_FLG_RTS_MSK. */
1154 #define TX_CMD_FLG_CTS_MSK cpu_to_le32(1 << 2)
1156 /* 1: Expect ACK from receiving station
1157 * 0: Don't expect ACK (MAC header's duration field s/b 0)
1158 * Set this for unicast frames, but not broadcast/multicast. */
1159 #define TX_CMD_FLG_ACK_MSK cpu_to_le32(1 << 3)
1162 * 1: Use rate scale table (see REPLY_TX_LINK_QUALITY_CMD).
1163 * Tx command's initial_rate_index indicates first rate to try;
1164 * uCode walks through table for additional Tx attempts.
1165 * 0: Use Tx rate/MCS from Tx command's rate_n_flags field.
1166 * This rate will be used for all Tx attempts; it will not be scaled. */
1167 #define TX_CMD_FLG_STA_RATE_MSK cpu_to_le32(1 << 4)
1169 /* 1: Expect immediate block-ack.
1170 * Set when Txing a block-ack request frame. Also set TX_CMD_FLG_ACK_MSK. */
1171 #define TX_CMD_FLG_IMM_BA_RSP_MASK cpu_to_le32(1 << 6)
1173 /* 1: Frame requires full Tx-Op protection.
1174 * Set this if either RTS or CTS Tx Flag gets set. */
1175 #define TX_CMD_FLG_FULL_TXOP_PROT_MSK cpu_to_le32(1 << 7)
1177 /* Tx antenna selection field; used only for 3945, reserved (0) for 4965.
1178 * Set field to "0" to allow 3945 uCode to select antenna (normal usage). */
1179 #define TX_CMD_FLG_ANT_SEL_MSK cpu_to_le32(0xf00)
1180 #define TX_CMD_FLG_ANT_A_MSK cpu_to_le32(1 << 8)
1181 #define TX_CMD_FLG_ANT_B_MSK cpu_to_le32(1 << 9)
1183 /* 1: Ignore Bluetooth priority for this frame.
1184 * 0: Delay Tx until Bluetooth device is done (normal usage). */
1185 #define TX_CMD_FLG_BT_DIS_MSK cpu_to_le32(1 << 12)
1187 /* 1: uCode overrides sequence control field in MAC header.
1188 * 0: Driver provides sequence control field in MAC header.
1189 * Set this for management frames, non-QOS data frames, non-unicast frames,
1190 * and also in Tx command embedded in REPLY_SCAN_CMD for active scans. */
1191 #define TX_CMD_FLG_SEQ_CTL_MSK cpu_to_le32(1 << 13)
1193 /* 1: This frame is non-last MPDU; more fragments are coming.
1194 * 0: Last fragment, or not using fragmentation. */
1195 #define TX_CMD_FLG_MORE_FRAG_MSK cpu_to_le32(1 << 14)
1197 /* 1: uCode calculates and inserts Timestamp Function (TSF) in outgoing frame.
1198 * 0: No TSF required in outgoing frame.
1199 * Set this for transmitting beacons and probe responses. */
1200 #define TX_CMD_FLG_TSF_MSK cpu_to_le32(1 << 16)
1202 /* 1: Driver inserted 2 bytes pad after the MAC header, for (required) dword
1203 * alignment of frame's payload data field.
1205 * Set this for MAC headers with 26 or 30 bytes, i.e. those with QOS or ADDR4
1206 * field (but not both). Driver must align frame data (i.e. data following
1207 * MAC header) to DWORD boundary. */
1208 #define TX_CMD_FLG_MH_PAD_MSK cpu_to_le32(1 << 20)
1210 /* accelerate aggregation support
1211 * 0 - no CCMP encryption; 1 - CCMP encryption */
1212 #define TX_CMD_FLG_AGG_CCMP_MSK cpu_to_le32(1 << 22)
1214 /* HCCA-AP - disable duration overwriting. */
1215 #define TX_CMD_FLG_DUR_MSK cpu_to_le32(1 << 25)
1219 * TX command security control
1221 #define TX_CMD_SEC_WEP 0x01
1222 #define TX_CMD_SEC_CCM 0x02
1223 #define TX_CMD_SEC_TKIP 0x03
1224 #define TX_CMD_SEC_MSK 0x03
1225 #define TX_CMD_SEC_SHIFT 6
1226 #define TX_CMD_SEC_KEY128 0x08
1229 * security overhead sizes
1231 #define WEP_IV_LEN 4
1232 #define WEP_ICV_LEN 4
1233 #define CCMP_MIC_LEN 8
1234 #define TKIP_ICV_LEN 4
1237 * 4965 uCode updates these Tx attempt count values in host DRAM.
1238 * Used for managing Tx retries when expecting block-acks.
1239 * Driver should set these fields to 0.
1241 struct iwl_dram_scratch {
1242 u8 try_cnt; /* Tx attempts */
1243 u8 bt_kill_cnt; /* Tx attempts blocked by Bluetooth device */
1245 } __attribute__ ((packed));
1248 * REPLY_TX = 0x1c (command)
1253 * MAC header (24/26/30/32 bytes) + 2 bytes pad if 26/30 header size,
1254 * + 8 byte IV for CCM or TKIP (not used for WEP)
1256 * + 8-byte MIC (not used for CCM/WEP)
1257 * NOTE: Does not include Tx command bytes, post-MAC pad bytes,
1258 * MIC (CCM) 8 bytes, ICV (WEP/TKIP/CKIP) 4 bytes, CRC 4 bytes.i
1259 * Range: 14-2342 bytes.
1264 * MPDU or MSDU byte count for next frame.
1265 * Used for fragmentation and bursting, but not 11n aggregation.
1266 * Same as "len", but for next frame. Set to 0 if not applicable.
1268 __le16 next_frame_len;
1270 __le32 tx_flags; /* TX_CMD_FLG_* */
1272 /* uCode may modify this field of the Tx command (in host DRAM!).
1273 * Driver must also set dram_lsb_ptr and dram_msb_ptr in this cmd. */
1274 struct iwl_dram_scratch scratch;
1276 /* Rate for *all* Tx attempts, if TX_CMD_FLG_STA_RATE_MSK is cleared. */
1277 __le32 rate_n_flags; /* RATE_MCS_* */
1279 /* Index of destination station in uCode's station table */
1282 /* Type of security encryption: CCM or TKIP */
1283 u8 sec_ctl; /* TX_CMD_SEC_* */
1286 * Index into rate table (see REPLY_TX_LINK_QUALITY_CMD) for initial
1287 * Tx attempt, if TX_CMD_FLG_STA_RATE_MSK is set. Normally "0" for
1288 * data frames, this field may be used to selectively reduce initial
1289 * rate (via non-0 value) for special frames (e.g. management), while
1290 * still supporting rate scaling for all frames.
1292 u8 initial_rate_index;
1295 __le16 next_frame_flags;
1302 /* Host DRAM physical address pointer to "scratch" in this command.
1303 * Must be dword aligned. "0" in dram_lsb_ptr disables usage. */
1304 __le32 dram_lsb_ptr;
1307 u8 rts_retry_limit; /*byte 50 */
1308 u8 data_retry_limit; /*byte 51 */
1311 __le16 pm_frame_timeout;
1312 __le16 attempt_duration;
1316 * Duration of EDCA burst Tx Opportunity, in 32-usec units.
1317 * Set this if txop time is not specified by HCCA protocol (e.g. by AP).
1322 * MAC header goes here, followed by 2 bytes padding if MAC header
1323 * length is 26 or 30 bytes, followed by payload data
1326 struct ieee80211_hdr hdr[0];
1327 } __attribute__ ((packed));
1329 /* TX command response is sent after *all* transmission attempts.
1333 * TX_STATUS_FAIL_NEXT_FRAG
1335 * If the fragment flag in the MAC header for the frame being transmitted
1336 * is set and there is insufficient time to transmit the next frame, the
1337 * TX status will be returned with 'TX_STATUS_FAIL_NEXT_FRAG'.
1339 * TX_STATUS_FIFO_UNDERRUN
1341 * Indicates the host did not provide bytes to the FIFO fast enough while
1342 * a TX was in progress.
1344 * TX_STATUS_FAIL_MGMNT_ABORT
1346 * This status is only possible if the ABORT ON MGMT RX parameter was
1347 * set to true with the TX command.
1349 * If the MSB of the status parameter is set then an abort sequence is
1350 * required. This sequence consists of the host activating the TX Abort
1351 * control line, and then waiting for the TX Abort command response. This
1352 * indicates that a the device is no longer in a transmit state, and that the
1353 * command FIFO has been cleared. The host must then deactivate the TX Abort
1354 * control line. Receiving is still allowed in this case.
1357 TX_STATUS_SUCCESS = 0x01,
1358 TX_STATUS_DIRECT_DONE = 0x02,
1359 TX_STATUS_FAIL_SHORT_LIMIT = 0x82,
1360 TX_STATUS_FAIL_LONG_LIMIT = 0x83,
1361 TX_STATUS_FAIL_FIFO_UNDERRUN = 0x84,
1362 TX_STATUS_FAIL_MGMNT_ABORT = 0x85,
1363 TX_STATUS_FAIL_NEXT_FRAG = 0x86,
1364 TX_STATUS_FAIL_LIFE_EXPIRE = 0x87,
1365 TX_STATUS_FAIL_DEST_PS = 0x88,
1366 TX_STATUS_FAIL_ABORTED = 0x89,
1367 TX_STATUS_FAIL_BT_RETRY = 0x8a,
1368 TX_STATUS_FAIL_STA_INVALID = 0x8b,
1369 TX_STATUS_FAIL_FRAG_DROPPED = 0x8c,
1370 TX_STATUS_FAIL_TID_DISABLE = 0x8d,
1371 TX_STATUS_FAIL_FRAME_FLUSHED = 0x8e,
1372 TX_STATUS_FAIL_INSUFFICIENT_CF_POLL = 0x8f,
1373 TX_STATUS_FAIL_TX_LOCKED = 0x90,
1374 TX_STATUS_FAIL_NO_BEACON_ON_RADAR = 0x91,
1377 #define TX_PACKET_MODE_REGULAR 0x0000
1378 #define TX_PACKET_MODE_BURST_SEQ 0x0100
1379 #define TX_PACKET_MODE_BURST_FIRST 0x0200
1382 TX_POWER_PA_NOT_ACTIVE = 0x0,
1386 TX_STATUS_MSK = 0x000000ff, /* bits 0:7 */
1387 TX_STATUS_DELAY_MSK = 0x00000040,
1388 TX_STATUS_ABORT_MSK = 0x00000080,
1389 TX_PACKET_MODE_MSK = 0x0000ff00, /* bits 8:15 */
1390 TX_FIFO_NUMBER_MSK = 0x00070000, /* bits 16:18 */
1391 TX_RESERVED = 0x00780000, /* bits 19:22 */
1392 TX_POWER_PA_DETECT_MSK = 0x7f800000, /* bits 23:30 */
1393 TX_ABORT_REQUIRED_MSK = 0x80000000, /* bits 31:31 */
1396 static inline bool iwl_is_tx_success(u32 status)
1398 status &= TX_STATUS_MSK;
1399 return (status == TX_STATUS_SUCCESS) ||
1400 (status == TX_STATUS_DIRECT_DONE);
1405 /* *******************************
1406 * TX aggregation status
1407 ******************************* */
1410 AGG_TX_STATE_TRANSMITTED = 0x00,
1411 AGG_TX_STATE_UNDERRUN_MSK = 0x01,
1412 AGG_TX_STATE_BT_PRIO_MSK = 0x02,
1413 AGG_TX_STATE_FEW_BYTES_MSK = 0x04,
1414 AGG_TX_STATE_ABORT_MSK = 0x08,
1415 AGG_TX_STATE_LAST_SENT_TTL_MSK = 0x10,
1416 AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK = 0x20,
1417 AGG_TX_STATE_LAST_SENT_BT_KILL_MSK = 0x40,
1418 AGG_TX_STATE_SCD_QUERY_MSK = 0x80,
1419 AGG_TX_STATE_TEST_BAD_CRC32_MSK = 0x100,
1420 AGG_TX_STATE_RESPONSE_MSK = 0x1ff,
1421 AGG_TX_STATE_DUMP_TX_MSK = 0x200,
1422 AGG_TX_STATE_DELAY_TX_MSK = 0x400
1425 #define AGG_TX_STATE_LAST_SENT_MSK (AGG_TX_STATE_LAST_SENT_TTL_MSK | \
1426 AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK | \
1427 AGG_TX_STATE_LAST_SENT_BT_KILL_MSK)
1429 /* # tx attempts for first frame in aggregation */
1430 #define AGG_TX_STATE_TRY_CNT_POS 12
1431 #define AGG_TX_STATE_TRY_CNT_MSK 0xf000
1433 /* Command ID and sequence number of Tx command for this frame */
1434 #define AGG_TX_STATE_SEQ_NUM_POS 16
1435 #define AGG_TX_STATE_SEQ_NUM_MSK 0xffff0000
1438 * REPLY_TX = 0x1c (response)
1440 * This response may be in one of two slightly different formats, indicated
1441 * by the frame_count field:
1443 * 1) No aggregation (frame_count == 1). This reports Tx results for
1444 * a single frame. Multiple attempts, at various bit rates, may have
1445 * been made for this frame.
1447 * 2) Aggregation (frame_count > 1). This reports Tx results for
1448 * 2 or more frames that used block-acknowledge. All frames were
1449 * transmitted at same rate. Rate scaling may have been used if first
1450 * frame in this new agg block failed in previous agg block(s).
1452 * Note that, for aggregation, ACK (block-ack) status is not delivered here;
1453 * block-ack has not been received by the time the 4965 records this status.
1454 * This status relates to reasons the tx might have been blocked or aborted
1455 * within the sending station (this 4965), rather than whether it was
1456 * received successfully by the destination station.
1458 struct agg_tx_status {
1461 } __attribute__ ((packed));
1463 struct iwl4965_tx_resp {
1464 u8 frame_count; /* 1 no aggregation, >1 aggregation */
1465 u8 bt_kill_count; /* # blocked by bluetooth (unused for agg) */
1466 u8 failure_rts; /* # failures due to unsuccessful RTS */
1467 u8 failure_frame; /* # failures due to no ACK (unused for agg) */
1469 /* For non-agg: Rate at which frame was successful.
1470 * For agg: Rate at which all frames were transmitted. */
1471 __le32 rate_n_flags; /* RATE_MCS_* */
1473 /* For non-agg: RTS + CTS + frame tx attempts time + ACK.
1474 * For agg: RTS + CTS + aggregation tx time + block-ack time. */
1475 __le16 wireless_media_time; /* uSecs */
1478 __le32 pa_power1; /* RF power amplifier measurement (not used) */
1482 * For non-agg: frame status TX_STATUS_*
1483 * For agg: status of 1st frame, AGG_TX_STATE_*; other frame status
1484 * fields follow this one, up to frame_count.
1486 * 11- 0: AGG_TX_STATE_* status code
1487 * 15-12: Retry count for 1st frame in aggregation (retries
1488 * occur if tx failed for this frame when it was a
1489 * member of a previous aggregation block). If rate
1490 * scaling is used, retry count indicates the rate
1491 * table entry used for all frames in the new agg.
1492 * 31-16: Sequence # for this frame's Tx cmd (not SSN!)
1496 struct agg_tx_status agg_status[0]; /* for each agg frame */
1498 } __attribute__ ((packed));
1501 * definitions for initial rate index field
1502 * bits [3:0] initial rate index
1503 * bits [6:4] rate table color, used for the initial rate
1504 * bit-7 invalid rate indication
1505 * i.e. rate was not chosen from rate table
1506 * or rate table color was changed during frame retries
1507 * refer tlc rate info
1510 #define IWL50_TX_RES_INIT_RATE_INDEX_POS 0
1511 #define IWL50_TX_RES_INIT_RATE_INDEX_MSK 0x0f
1512 #define IWL50_TX_RES_RATE_TABLE_COLOR_POS 4
1513 #define IWL50_TX_RES_RATE_TABLE_COLOR_MSK 0x70
1514 #define IWL50_TX_RES_INV_RATE_INDEX_MSK 0x80
1516 /* refer to ra_tid */
1517 #define IWL50_TX_RES_TID_POS 0
1518 #define IWL50_TX_RES_TID_MSK 0x0f
1519 #define IWL50_TX_RES_RA_POS 4
1520 #define IWL50_TX_RES_RA_MSK 0xf0
1522 struct iwl5000_tx_resp {
1523 u8 frame_count; /* 1 no aggregation, >1 aggregation */
1524 u8 bt_kill_count; /* # blocked by bluetooth (unused for agg) */
1525 u8 failure_rts; /* # failures due to unsuccessful RTS */
1526 u8 failure_frame; /* # failures due to no ACK (unused for agg) */
1528 /* For non-agg: Rate at which frame was successful.
1529 * For agg: Rate at which all frames were transmitted. */
1530 __le32 rate_n_flags; /* RATE_MCS_* */
1532 /* For non-agg: RTS + CTS + frame tx attempts time + ACK.
1533 * For agg: RTS + CTS + aggregation tx time + block-ack time. */
1534 __le16 wireless_media_time; /* uSecs */
1536 u8 pa_status; /* RF power amplifier measurement (not used) */
1537 u8 pa_integ_res_a[3];
1538 u8 pa_integ_res_b[3];
1539 u8 pa_integ_res_C[3];
1545 u8 ra_tid; /* tid (0:3), sta_id (4:7) */
1548 * For non-agg: frame status TX_STATUS_*
1549 * For agg: status of 1st frame, AGG_TX_STATE_*; other frame status
1550 * fields follow this one, up to frame_count.
1552 * 11- 0: AGG_TX_STATE_* status code
1553 * 15-12: Retry count for 1st frame in aggregation (retries
1554 * occur if tx failed for this frame when it was a
1555 * member of a previous aggregation block). If rate
1556 * scaling is used, retry count indicates the rate
1557 * table entry used for all frames in the new agg.
1558 * 31-16: Sequence # for this frame's Tx cmd (not SSN!)
1560 struct agg_tx_status status; /* TX status (in aggregation -
1561 * status of 1st frame) */
1562 } __attribute__ ((packed));
1564 * REPLY_COMPRESSED_BA = 0xc5 (response only, not a command)
1566 * Reports Block-Acknowledge from recipient station
1568 struct iwl_compressed_ba_resp {
1569 __le32 sta_addr_lo32;
1570 __le16 sta_addr_hi16;
1573 /* Index of recipient (BA-sending) station in uCode's station table */
1580 } __attribute__ ((packed));
1583 * REPLY_TX_PWR_TABLE_CMD = 0x97 (command, has simple generic response)
1585 * See details under "TXPOWER" in iwl-4965-hw.h.
1587 struct iwl4965_txpowertable_cmd {
1588 u8 band; /* 0: 5 GHz, 1: 2.4 GHz */
1591 struct iwl4965_tx_power_db tx_power;
1592 } __attribute__ ((packed));
1594 /*RS_NEW_API: only TLC_RTS remains and moved to bit 0 */
1595 #define LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK (1 << 0)
1597 /* # of EDCA prioritized tx fifos */
1598 #define LINK_QUAL_AC_NUM AC_NUM
1600 /* # entries in rate scale table to support Tx retries */
1601 #define LINK_QUAL_MAX_RETRY_NUM 16
1603 /* Tx antenna selection values */
1604 #define LINK_QUAL_ANT_A_MSK (1 << 0)
1605 #define LINK_QUAL_ANT_B_MSK (1 << 1)
1606 #define LINK_QUAL_ANT_MSK (LINK_QUAL_ANT_A_MSK|LINK_QUAL_ANT_B_MSK)
1610 * struct iwl_link_qual_general_params
1612 * Used in REPLY_TX_LINK_QUALITY_CMD
1614 struct iwl_link_qual_general_params {
1617 /* No entries at or above this (driver chosen) index contain MIMO */
1620 /* Best single antenna to use for single stream (legacy, SISO). */
1621 u8 single_stream_ant_msk; /* LINK_QUAL_ANT_* */
1623 /* Best antennas to use for MIMO (unused for 4965, assumes both). */
1624 u8 dual_stream_ant_msk; /* LINK_QUAL_ANT_* */
1627 * If driver needs to use different initial rates for different
1628 * EDCA QOS access categories (as implemented by tx fifos 0-3),
1629 * this table will set that up, by indicating the indexes in the
1630 * rs_table[LINK_QUAL_MAX_RETRY_NUM] rate table at which to start.
1631 * Otherwise, driver should set all entries to 0.
1634 * 0 = Background, 1 = Best Effort (normal), 2 = Video, 3 = Voice
1635 * TX FIFOs above 3 use same value (typically 0) as TX FIFO 3.
1637 u8 start_rate_index[LINK_QUAL_AC_NUM];
1638 } __attribute__ ((packed));
1641 * struct iwl_link_qual_agg_params
1643 * Used in REPLY_TX_LINK_QUALITY_CMD
1645 struct iwl_link_qual_agg_params {
1647 /* Maximum number of uSec in aggregation.
1648 * Driver should set this to 4000 (4 milliseconds). */
1649 __le16 agg_time_limit;
1652 * Number of Tx retries allowed for a frame, before that frame will
1653 * no longer be considered for the start of an aggregation sequence
1654 * (scheduler will then try to tx it as single frame).
1655 * Driver should set this to 3.
1657 u8 agg_dis_start_th;
1660 * Maximum number of frames in aggregation.
1661 * 0 = no limit (default). 1 = no aggregation.
1662 * Other values = max # frames in aggregation.
1664 u8 agg_frame_cnt_limit;
1667 } __attribute__ ((packed));
1670 * REPLY_TX_LINK_QUALITY_CMD = 0x4e (command, has simple generic response)
1672 * For 4965 only; 3945 uses REPLY_RATE_SCALE.
1674 * Each station in the 4965's internal station table has its own table of 16
1675 * Tx rates and modulation modes (e.g. legacy/SISO/MIMO) for retrying Tx when
1676 * an ACK is not received. This command replaces the entire table for
1679 * NOTE: Station must already be in 4965's station table. Use REPLY_ADD_STA.
1681 * The rate scaling procedures described below work well. Of course, other
1682 * procedures are possible, and may work better for particular environments.
1685 * FILLING THE RATE TABLE
1687 * Given a particular initial rate and mode, as determined by the rate
1688 * scaling algorithm described below, the Linux driver uses the following
1689 * formula to fill the rs_table[LINK_QUAL_MAX_RETRY_NUM] rate table in the
1690 * Link Quality command:
1693 * 1) If using High-throughput (HT) (SISO or MIMO) initial rate:
1694 * a) Use this same initial rate for first 3 entries.
1695 * b) Find next lower available rate using same mode (SISO or MIMO),
1696 * use for next 3 entries. If no lower rate available, switch to
1697 * legacy mode (no FAT channel, no MIMO, no short guard interval).
1698 * c) If using MIMO, set command's mimo_delimiter to number of entries
1699 * using MIMO (3 or 6).
1700 * d) After trying 2 HT rates, switch to legacy mode (no FAT channel,
1701 * no MIMO, no short guard interval), at the next lower bit rate
1702 * (e.g. if second HT bit rate was 54, try 48 legacy), and follow
1703 * legacy procedure for remaining table entries.
1705 * 2) If using legacy initial rate:
1706 * a) Use the initial rate for only one entry.
1707 * b) For each following entry, reduce the rate to next lower available
1708 * rate, until reaching the lowest available rate.
1709 * c) When reducing rate, also switch antenna selection.
1710 * d) Once lowest available rate is reached, repeat this rate until
1711 * rate table is filled (16 entries), switching antenna each entry.
1714 * ACCUMULATING HISTORY
1716 * The rate scaling algorithm for 4965, as implemented in Linux driver, uses
1717 * two sets of frame Tx success history: One for the current/active modulation
1718 * mode, and one for a speculative/search mode that is being attempted. If the
1719 * speculative mode turns out to be more effective (i.e. actual transfer
1720 * rate is better), then the driver continues to use the speculative mode
1721 * as the new current active mode.
1723 * Each history set contains, separately for each possible rate, data for a
1724 * sliding window of the 62 most recent tx attempts at that rate. The data
1725 * includes a shifting bitmap of success(1)/failure(0), and sums of successful
1726 * and attempted frames, from which the driver can additionally calculate a
1727 * success ratio (success / attempted) and number of failures
1728 * (attempted - success), and control the size of the window (attempted).
1729 * The driver uses the bit map to remove successes from the success sum, as
1730 * the oldest tx attempts fall out of the window.
1732 * When the 4965 makes multiple tx attempts for a given frame, each attempt
1733 * might be at a different rate, and have different modulation characteristics
1734 * (e.g. antenna, fat channel, short guard interval), as set up in the rate
1735 * scaling table in the Link Quality command. The driver must determine
1736 * which rate table entry was used for each tx attempt, to determine which
1737 * rate-specific history to update, and record only those attempts that
1738 * match the modulation characteristics of the history set.
1740 * When using block-ack (aggregation), all frames are transmitted at the same
1741 * rate, since there is no per-attempt acknowledgment from the destination
1742 * station. The Tx response struct iwl_tx_resp indicates the Tx rate in
1743 * rate_n_flags field. After receiving a block-ack, the driver can update
1744 * history for the entire block all at once.
1747 * FINDING BEST STARTING RATE:
1749 * When working with a selected initial modulation mode (see below), the
1750 * driver attempts to find a best initial rate. The initial rate is the
1751 * first entry in the Link Quality command's rate table.
1753 * 1) Calculate actual throughput (success ratio * expected throughput, see
1754 * table below) for current initial rate. Do this only if enough frames
1755 * have been attempted to make the value meaningful: at least 6 failed
1756 * tx attempts, or at least 8 successes. If not enough, don't try rate
1759 * 2) Find available rates adjacent to current initial rate. Available means:
1760 * a) supported by hardware &&
1761 * b) supported by association &&
1762 * c) within any constraints selected by user
1764 * 3) Gather measured throughputs for adjacent rates. These might not have
1765 * enough history to calculate a throughput. That's okay, we might try
1766 * using one of them anyway!
1768 * 4) Try decreasing rate if, for current rate:
1769 * a) success ratio is < 15% ||
1770 * b) lower adjacent rate has better measured throughput ||
1771 * c) higher adjacent rate has worse throughput, and lower is unmeasured
1773 * As a sanity check, if decrease was determined above, leave rate
1775 * a) lower rate unavailable
1776 * b) success ratio at current rate > 85% (very good)
1777 * c) current measured throughput is better than expected throughput
1778 * of lower rate (under perfect 100% tx conditions, see table below)
1780 * 5) Try increasing rate if, for current rate:
1781 * a) success ratio is < 15% ||
1782 * b) both adjacent rates' throughputs are unmeasured (try it!) ||
1783 * b) higher adjacent rate has better measured throughput ||
1784 * c) lower adjacent rate has worse throughput, and higher is unmeasured
1786 * As a sanity check, if increase was determined above, leave rate
1788 * a) success ratio at current rate < 70%. This is not particularly
1789 * good performance; higher rate is sure to have poorer success.
1791 * 6) Re-evaluate the rate after each tx frame. If working with block-
1792 * acknowledge, history and statistics may be calculated for the entire
1793 * block (including prior history that fits within the history windows),
1794 * before re-evaluation.
1796 * FINDING BEST STARTING MODULATION MODE:
1798 * After working with a modulation mode for a "while" (and doing rate scaling),
1799 * the driver searches for a new initial mode in an attempt to improve
1800 * throughput. The "while" is measured by numbers of attempted frames:
1802 * For legacy mode, search for new mode after:
1803 * 480 successful frames, or 160 failed frames
1804 * For high-throughput modes (SISO or MIMO), search for new mode after:
1805 * 4500 successful frames, or 400 failed frames
1807 * Mode switch possibilities are (3 for each mode):
1810 * Change antenna, try SISO (if HT association), try MIMO (if HT association)
1812 * Change antenna, try MIMO, try shortened guard interval (SGI)
1814 * Try SISO antenna A, SISO antenna B, try shortened guard interval (SGI)
1816 * When trying a new mode, use the same bit rate as the old/current mode when
1817 * trying antenna switches and shortened guard interval. When switching to
1818 * SISO from MIMO or legacy, or to MIMO from SISO or legacy, use a rate
1819 * for which the expected throughput (under perfect conditions) is about the
1820 * same or slightly better than the actual measured throughput delivered by
1821 * the old/current mode.
1823 * Actual throughput can be estimated by multiplying the expected throughput
1824 * by the success ratio (successful / attempted tx frames). Frame size is
1825 * not considered in this calculation; it assumes that frame size will average
1826 * out to be fairly consistent over several samples. The following are
1827 * metric values for expected throughput assuming 100% success ratio.
1828 * Only G band has support for CCK rates:
1830 * RATE: 1 2 5 11 6 9 12 18 24 36 48 54 60
1832 * G: 7 13 35 58 40 57 72 98 121 154 177 186 186
1833 * A: 0 0 0 0 40 57 72 98 121 154 177 186 186
1834 * SISO 20MHz: 0 0 0 0 42 42 76 102 124 159 183 193 202
1835 * SGI SISO 20MHz: 0 0 0 0 46 46 82 110 132 168 192 202 211
1836 * MIMO 20MHz: 0 0 0 0 74 74 123 155 179 214 236 244 251
1837 * SGI MIMO 20MHz: 0 0 0 0 81 81 131 164 188 222 243 251 257
1838 * SISO 40MHz: 0 0 0 0 77 77 127 160 184 220 242 250 257
1839 * SGI SISO 40MHz: 0 0 0 0 83 83 135 169 193 229 250 257 264
1840 * MIMO 40MHz: 0 0 0 0 123 123 182 214 235 264 279 285 289
1841 * SGI MIMO 40MHz: 0 0 0 0 131 131 191 222 242 270 284 289 293
1843 * After the new mode has been tried for a short while (minimum of 6 failed
1844 * frames or 8 successful frames), compare success ratio and actual throughput
1845 * estimate of the new mode with the old. If either is better with the new
1846 * mode, continue to use the new mode.
1848 * Continue comparing modes until all 3 possibilities have been tried.
1849 * If moving from legacy to HT, try all 3 possibilities from the new HT
1850 * mode. After trying all 3, a best mode is found. Continue to use this mode
1851 * for the longer "while" described above (e.g. 480 successful frames for
1852 * legacy), and then repeat the search process.
1855 struct iwl_link_quality_cmd {
1857 /* Index of destination/recipient station in uCode's station table */
1860 __le16 control; /* not used */
1861 struct iwl_link_qual_general_params general_params;
1862 struct iwl_link_qual_agg_params agg_params;
1865 * Rate info; when using rate-scaling, Tx command's initial_rate_index
1866 * specifies 1st Tx rate attempted, via index into this table.
1867 * 4965 works its way through table when retrying Tx.
1870 __le32 rate_n_flags; /* RATE_MCS_*, IWL_RATE_* */
1871 } rs_table[LINK_QUAL_MAX_RETRY_NUM];
1873 } __attribute__ ((packed));
1876 * REPLY_BT_CONFIG = 0x9b (command, has simple generic response)
1878 * 3945 and 4965 support hardware handshake with Bluetooth device on
1879 * same platform. Bluetooth device alerts wireless device when it will Tx;
1880 * wireless device can delay or kill its own Tx to accommodate.
1887 __le32 kill_ack_mask;
1888 __le32 kill_cts_mask;
1889 } __attribute__ ((packed));
1891 /******************************************************************************
1893 * Spectrum Management (802.11h) Commands, Responses, Notifications:
1895 *****************************************************************************/
1898 * Spectrum Management
1900 #define MEASUREMENT_FILTER_FLAG (RXON_FILTER_PROMISC_MSK | \
1901 RXON_FILTER_CTL2HOST_MSK | \
1902 RXON_FILTER_ACCEPT_GRP_MSK | \
1903 RXON_FILTER_DIS_DECRYPT_MSK | \
1904 RXON_FILTER_DIS_GRP_DECRYPT_MSK | \
1905 RXON_FILTER_ASSOC_MSK | \
1906 RXON_FILTER_BCON_AWARE_MSK)
1908 struct iwl_measure_channel {
1909 __le32 duration; /* measurement duration in extended beacon
1911 u8 channel; /* channel to measure */
1912 u8 type; /* see enum iwl_measure_type */
1914 } __attribute__ ((packed));
1917 * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (command)
1919 struct iwl_spectrum_cmd {
1920 __le16 len; /* number of bytes starting from token */
1921 u8 token; /* token id */
1922 u8 id; /* measurement id -- 0 or 1 */
1923 u8 origin; /* 0 = TGh, 1 = other, 2 = TGk */
1924 u8 periodic; /* 1 = periodic */
1925 __le16 path_loss_timeout;
1926 __le32 start_time; /* start time in extended beacon format */
1928 __le32 flags; /* rxon flags */
1929 __le32 filter_flags; /* rxon filter flags */
1930 __le16 channel_count; /* minimum 1, maximum 10 */
1932 struct iwl_measure_channel channels[10];
1933 } __attribute__ ((packed));
1936 * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (response)
1938 struct iwl_spectrum_resp {
1940 u8 id; /* id of the prior command replaced, or 0xff */
1941 __le16 status; /* 0 - command will be handled
1942 * 1 - cannot handle (conflicts with another
1944 } __attribute__ ((packed));
1946 enum iwl_measurement_state {
1947 IWL_MEASUREMENT_START = 0,
1948 IWL_MEASUREMENT_STOP = 1,
1951 enum iwl_measurement_status {
1952 IWL_MEASUREMENT_OK = 0,
1953 IWL_MEASUREMENT_CONCURRENT = 1,
1954 IWL_MEASUREMENT_CSA_CONFLICT = 2,
1955 IWL_MEASUREMENT_TGH_CONFLICT = 3,
1957 IWL_MEASUREMENT_STOPPED = 6,
1958 IWL_MEASUREMENT_TIMEOUT = 7,
1959 IWL_MEASUREMENT_PERIODIC_FAILED = 8,
1962 #define NUM_ELEMENTS_IN_HISTOGRAM 8
1964 struct iwl_measurement_histogram {
1965 __le32 ofdm[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 0.8usec counts */
1966 __le32 cck[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 1usec counts */
1967 } __attribute__ ((packed));
1969 /* clear channel availability counters */
1970 struct iwl_measurement_cca_counters {
1973 } __attribute__ ((packed));
1975 enum iwl_measure_type {
1976 IWL_MEASURE_BASIC = (1 << 0),
1977 IWL_MEASURE_CHANNEL_LOAD = (1 << 1),
1978 IWL_MEASURE_HISTOGRAM_RPI = (1 << 2),
1979 IWL_MEASURE_HISTOGRAM_NOISE = (1 << 3),
1980 IWL_MEASURE_FRAME = (1 << 4),
1981 /* bits 5:6 are reserved */
1982 IWL_MEASURE_IDLE = (1 << 7),
1986 * SPECTRUM_MEASURE_NOTIFICATION = 0x75 (notification only, not a command)
1988 struct iwl_spectrum_notification {
1989 u8 id; /* measurement id -- 0 or 1 */
1991 u8 channel_index; /* index in measurement channel list */
1992 u8 state; /* 0 - start, 1 - stop */
1993 __le32 start_time; /* lower 32-bits of TSF */
1994 u8 band; /* 0 - 5.2GHz, 1 - 2.4GHz */
1996 u8 type; /* see enum iwl_measurement_type */
1998 /* NOTE: cca_ofdm, cca_cck, basic_type, and histogram are only only
1999 * valid if applicable for measurement type requested. */
2000 __le32 cca_ofdm; /* cca fraction time in 40Mhz clock periods */
2001 __le32 cca_cck; /* cca fraction time in 44Mhz clock periods */
2002 __le32 cca_time; /* channel load time in usecs */
2003 u8 basic_type; /* 0 - bss, 1 - ofdm preamble, 2 -
2006 struct iwl_measurement_histogram histogram;
2007 __le32 stop_time; /* lower 32-bits of TSF */
2008 __le32 status; /* see iwl_measurement_status */
2009 } __attribute__ ((packed));
2011 /******************************************************************************
2013 * Power Management Commands, Responses, Notifications:
2015 *****************************************************************************/
2018 * struct iwl_powertable_cmd - Power Table Command
2019 * @flags: See below:
2021 * POWER_TABLE_CMD = 0x77 (command, has simple generic response)
2024 * bit 0 - '0' Driver not allow power management
2025 * '1' Driver allow PM (use rest of parameters)
2026 * uCode send sleep notifications:
2027 * bit 1 - '0' Don't send sleep notification
2028 * '1' send sleep notification (SEND_PM_NOTIFICATION)
2030 * bit 2 - '0' PM have to walk up every DTIM
2031 * '1' PM could sleep over DTIM till listen Interval.
2033 * bit 3 - '0' (PCI_CFG_LINK_CTRL & 0x1)
2034 * '1' !(PCI_CFG_LINK_CTRL & 0x1)
2036 * bit 31/30- '00' use both mac/xtal sleeps
2037 * '01' force Mac sleep
2038 * '10' force xtal sleep
2041 * NOTE: if sleep_interval[SLEEP_INTRVL_TABLE_SIZE-1] > DTIM period then
2042 * ucode assume sleep over DTIM is allowed and we don't need to wake up
2045 #define IWL_POWER_VEC_SIZE 5
2047 #define IWL_POWER_DRIVER_ALLOW_SLEEP_MSK cpu_to_le16(1 << 0)
2048 #define IWL_POWER_SLEEP_OVER_DTIM_MSK cpu_to_le16(1 << 2)
2049 #define IWL_POWER_PCI_PM_MSK cpu_to_le16(1 << 3)
2050 #define IWL_POWER_FAST_PD cpu_to_le16(1 << 4)
2052 struct iwl_powertable_cmd {
2054 u8 keep_alive_seconds;
2056 __le32 rx_data_timeout;
2057 __le32 tx_data_timeout;
2058 __le32 sleep_interval[IWL_POWER_VEC_SIZE];
2059 __le32 keep_alive_beacons;
2060 } __attribute__ ((packed));
2063 * PM_SLEEP_NOTIFICATION = 0x7A (notification only, not a command)
2064 * 3945 and 4965 identical.
2066 struct iwl_sleep_notification {
2073 } __attribute__ ((packed));
2075 /* Sleep states. 3945 and 4965 identical. */
2077 IWL_PM_NO_SLEEP = 0,
2079 IWL_PM_SLP_FULL_MAC_UNASSOCIATE = 2,
2080 IWL_PM_SLP_FULL_MAC_CARD_STATE = 3,
2082 IWL_PM_SLP_REPENT = 5,
2083 IWL_PM_WAKEUP_BY_TIMER = 6,
2084 IWL_PM_WAKEUP_BY_DRIVER = 7,
2085 IWL_PM_WAKEUP_BY_RFKILL = 8,
2087 IWL_PM_NUM_OF_MODES = 12,
2091 * REPLY_CARD_STATE_CMD = 0xa0 (command, has simple generic response)
2093 #define CARD_STATE_CMD_DISABLE 0x00 /* Put card to sleep */
2094 #define CARD_STATE_CMD_ENABLE 0x01 /* Wake up card */
2095 #define CARD_STATE_CMD_HALT 0x02 /* Power down permanently */
2096 struct iwl_card_state_cmd {
2097 __le32 status; /* CARD_STATE_CMD_* request new power state */
2098 } __attribute__ ((packed));
2101 * CARD_STATE_NOTIFICATION = 0xa1 (notification only, not a command)
2103 struct iwl_card_state_notif {
2105 } __attribute__ ((packed));
2107 #define HW_CARD_DISABLED 0x01
2108 #define SW_CARD_DISABLED 0x02
2109 #define RF_CARD_DISABLED 0x04
2110 #define RXON_CARD_DISABLED 0x10
2112 struct iwl_ct_kill_config {
2114 __le32 critical_temperature_M;
2115 __le32 critical_temperature_R;
2116 } __attribute__ ((packed));
2118 /******************************************************************************
2120 * Scan Commands, Responses, Notifications:
2122 *****************************************************************************/
2124 #define SCAN_CHANNEL_TYPE_PASSIVE cpu_to_le32(0)
2125 #define SCAN_CHANNEL_TYPE_ACTIVE cpu_to_le32(1)
2128 * struct iwl_scan_channel - entry in REPLY_SCAN_CMD channel table
2130 * One for each channel in the scan list.
2131 * Each channel can independently select:
2132 * 1) SSID for directed active scans
2133 * 2) Txpower setting (for rate specified within Tx command)
2134 * 3) How long to stay on-channel (behavior may be modified by quiet_time,
2135 * quiet_plcp_th, good_CRC_th)
2137 * To avoid uCode errors, make sure the following are true (see comments
2138 * under struct iwl_scan_cmd about max_out_time and quiet_time):
2139 * 1) If using passive_dwell (i.e. passive_dwell != 0):
2140 * active_dwell <= passive_dwell (< max_out_time if max_out_time != 0)
2141 * 2) quiet_time <= active_dwell
2142 * 3) If restricting off-channel time (i.e. max_out_time !=0):
2143 * passive_dwell < max_out_time
2144 * active_dwell < max_out_time
2146 struct iwl_scan_channel {
2148 * type is defined as:
2149 * 0:0 1 = active, 0 = passive
2150 * 1:20 SSID direct bit map; if a bit is set, then corresponding
2151 * SSID IE is transmitted in probe request.
2155 __le16 channel; /* band is selected by iwl_scan_cmd "flags" field */
2156 u8 tx_gain; /* gain for analog radio */
2157 u8 dsp_atten; /* gain for DSP */
2158 __le16 active_dwell; /* in 1024-uSec TU (time units), typ 5-50 */
2159 __le16 passive_dwell; /* in 1024-uSec TU (time units), typ 20-500 */
2160 } __attribute__ ((packed));
2163 * struct iwl_ssid_ie - directed scan network information element
2165 * Up to 4 of these may appear in REPLY_SCAN_CMD, selected by "type" field
2166 * in struct iwl_scan_channel; each channel may select different ssids from
2167 * among the 4 entries. SSID IEs get transmitted in reverse order of entry.
2169 struct iwl_ssid_ie {
2173 } __attribute__ ((packed));
2175 #define PROBE_OPTION_MAX 0x14
2176 #define TX_CMD_LIFE_TIME_INFINITE cpu_to_le32(0xFFFFFFFF)
2177 #define IWL_GOOD_CRC_TH cpu_to_le16(1)
2178 #define IWL_MAX_SCAN_SIZE 1024
2181 * REPLY_SCAN_CMD = 0x80 (command)
2183 * The hardware scan command is very powerful; the driver can set it up to
2184 * maintain (relatively) normal network traffic while doing a scan in the
2185 * background. The max_out_time and suspend_time control the ratio of how
2186 * long the device stays on an associated network channel ("service channel")
2187 * vs. how long it's away from the service channel, i.e. tuned to other channels
2190 * max_out_time is the max time off-channel (in usec), and suspend_time
2191 * is how long (in "extended beacon" format) that the scan is "suspended"
2192 * after returning to the service channel. That is, suspend_time is the
2193 * time that we stay on the service channel, doing normal work, between
2194 * scan segments. The driver may set these parameters differently to support
2195 * scanning when associated vs. not associated, and light vs. heavy traffic
2196 * loads when associated.
2198 * After receiving this command, the device's scan engine does the following;
2200 * 1) Sends SCAN_START notification to driver
2201 * 2) Checks to see if it has time to do scan for one channel
2202 * 3) Sends NULL packet, with power-save (PS) bit set to 1,
2203 * to tell AP that we're going off-channel
2204 * 4) Tunes to first channel in scan list, does active or passive scan
2205 * 5) Sends SCAN_RESULT notification to driver
2206 * 6) Checks to see if it has time to do scan on *next* channel in list
2207 * 7) Repeats 4-6 until it no longer has time to scan the next channel
2208 * before max_out_time expires
2209 * 8) Returns to service channel
2210 * 9) Sends NULL packet with PS=0 to tell AP that we're back
2211 * 10) Stays on service channel until suspend_time expires
2212 * 11) Repeats entire process 2-10 until list is complete
2213 * 12) Sends SCAN_COMPLETE notification
2215 * For fast, efficient scans, the scan command also has support for staying on
2216 * a channel for just a short time, if doing active scanning and getting no
2217 * responses to the transmitted probe request. This time is controlled by
2218 * quiet_time, and the number of received packets below which a channel is
2219 * considered "quiet" is controlled by quiet_plcp_threshold.
2221 * For active scanning on channels that have regulatory restrictions against
2222 * blindly transmitting, the scan can listen before transmitting, to make sure
2223 * that there is already legitimate activity on the channel. If enough
2224 * packets are cleanly received on the channel (controlled by good_CRC_th,
2225 * typical value 1), the scan engine starts transmitting probe requests.
2227 * Driver must use separate scan commands for 2.4 vs. 5 GHz bands.
2229 * To avoid uCode errors, see timing restrictions described under
2230 * struct iwl_scan_channel.
2232 struct iwl_scan_cmd {
2235 u8 channel_count; /* # channels in channel list */
2236 __le16 quiet_time; /* dwell only this # millisecs on quiet channel
2237 * (only for active scan) */
2238 __le16 quiet_plcp_th; /* quiet chnl is < this # pkts (typ. 1) */
2239 __le16 good_CRC_th; /* passive -> active promotion threshold */
2240 __le16 rx_chain; /* RXON_RX_CHAIN_* */
2241 __le32 max_out_time; /* max usec to be away from associated (service)
2243 __le32 suspend_time; /* pause scan this long (in "extended beacon
2244 * format") when returning to service chnl:
2245 * 3945; 31:24 # beacons, 19:0 additional usec,
2246 * 4965; 31:22 # beacons, 21:0 additional usec.
2248 __le32 flags; /* RXON_FLG_* */
2249 __le32 filter_flags; /* RXON_FILTER_* */
2251 /* For active scans (set to all-0s for passive scans).
2252 * Does not include payload. Must specify Tx rate; no rate scaling. */
2253 struct iwl_tx_cmd tx_cmd;
2255 /* For directed active scans (set to all-0s otherwise) */
2256 struct iwl_ssid_ie direct_scan[PROBE_OPTION_MAX];
2259 * Probe request frame, followed by channel list.
2261 * Size of probe request frame is specified by byte count in tx_cmd.
2262 * Channel list follows immediately after probe request frame.
2263 * Number of channels in list is specified by channel_count.
2264 * Each channel in list is of type:
2266 * struct iwl_scan_channel channels[0];
2268 * NOTE: Only one band of channels can be scanned per pass. You
2269 * must not mix 2.4GHz channels and 5.2GHz channels, and you must wait
2270 * for one scan to complete (i.e. receive SCAN_COMPLETE_NOTIFICATION)
2271 * before requesting another scan.
2274 } __attribute__ ((packed));
2276 /* Can abort will notify by complete notification with abort status. */
2277 #define CAN_ABORT_STATUS cpu_to_le32(0x1)
2278 /* complete notification statuses */
2279 #define ABORT_STATUS 0x2
2282 * REPLY_SCAN_CMD = 0x80 (response)
2284 struct iwl_scanreq_notification {
2285 __le32 status; /* 1: okay, 2: cannot fulfill request */
2286 } __attribute__ ((packed));
2289 * SCAN_START_NOTIFICATION = 0x82 (notification only, not a command)
2291 struct iwl_scanstart_notification {
2294 __le32 beacon_timer;
2299 } __attribute__ ((packed));
2301 #define SCAN_OWNER_STATUS 0x1;
2302 #define MEASURE_OWNER_STATUS 0x2;
2304 #define NUMBER_OF_STATISTICS 1 /* first __le32 is good CRC */
2306 * SCAN_RESULTS_NOTIFICATION = 0x83 (notification only, not a command)
2308 struct iwl_scanresults_notification {
2314 __le32 statistics[NUMBER_OF_STATISTICS];
2315 } __attribute__ ((packed));
2318 * SCAN_COMPLETE_NOTIFICATION = 0x84 (notification only, not a command)
2320 struct iwl_scancomplete_notification {
2321 u8 scanned_channels;
2327 } __attribute__ ((packed));
2330 /******************************************************************************
2332 * IBSS/AP Commands and Notifications:
2334 *****************************************************************************/
2337 * BEACON_NOTIFICATION = 0x90 (notification only, not a command)
2339 struct iwl4965_beacon_notif {
2340 struct iwl4965_tx_resp beacon_notify_hdr;
2343 __le32 ibss_mgr_status;
2344 } __attribute__ ((packed));
2347 * REPLY_TX_BEACON = 0x91 (command, has simple generic response)
2349 struct iwl_tx_beacon_cmd {
2350 struct iwl_tx_cmd tx;
2354 struct ieee80211_hdr frame[0]; /* beacon frame */
2355 } __attribute__ ((packed));
2357 /******************************************************************************
2359 * Statistics Commands and Notifications:
2361 *****************************************************************************/
2363 #define IWL_TEMP_CONVERT 260
2365 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
2366 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
2367 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
2369 /* Used for passing to driver number of successes and failures per rate */
2370 struct rate_histogram {
2372 __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS];
2373 __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS];
2374 __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS];
2377 __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS];
2378 __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS];
2379 __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS];
2381 } __attribute__ ((packed));
2383 /* statistics command response */
2385 struct statistics_rx_phy {
2391 __le32 early_overrun_err;
2393 __le32 false_alarm_cnt;
2394 __le32 fina_sync_err_cnt;
2396 __le32 fina_timeout;
2397 __le32 unresponded_rts;
2398 __le32 rxe_frame_limit_overrun;
2399 __le32 sent_ack_cnt;
2400 __le32 sent_cts_cnt;
2401 __le32 sent_ba_rsp_cnt;
2402 __le32 dsp_self_kill;
2403 __le32 mh_format_err;
2404 __le32 re_acq_main_rssi_sum;
2406 } __attribute__ ((packed));
2408 struct statistics_rx_ht_phy {
2411 __le32 early_overrun_err;
2414 __le32 mh_format_err;
2415 __le32 agg_crc32_good;
2416 __le32 agg_mpdu_cnt;
2419 } __attribute__ ((packed));
2421 #define INTERFERENCE_DATA_AVAILABLE __constant_cpu_to_le32(1)
2423 struct statistics_rx_non_phy {
2424 __le32 bogus_cts; /* CTS received when not expecting CTS */
2425 __le32 bogus_ack; /* ACK received when not expecting ACK */
2426 __le32 non_bssid_frames; /* number of frames with BSSID that
2427 * doesn't belong to the STA BSSID */
2428 __le32 filtered_frames; /* count frames that were dumped in the
2429 * filtering process */
2430 __le32 non_channel_beacons; /* beacons with our bss id but not on
2431 * our serving channel */
2432 __le32 channel_beacons; /* beacons with our bss id and in our
2433 * serving channel */
2434 __le32 num_missed_bcon; /* number of missed beacons */
2435 __le32 adc_rx_saturation_time; /* count in 0.8us units the time the
2436 * ADC was in saturation */
2437 __le32 ina_detection_search_time;/* total time (in 0.8us) searched
2439 __le32 beacon_silence_rssi_a; /* RSSI silence after beacon frame */
2440 __le32 beacon_silence_rssi_b; /* RSSI silence after beacon frame */
2441 __le32 beacon_silence_rssi_c; /* RSSI silence after beacon frame */
2442 __le32 interference_data_flag; /* flag for interference data
2443 * availability. 1 when data is
2445 __le32 channel_load; /* counts RX Enable time in uSec */
2446 __le32 dsp_false_alarms; /* DSP false alarm (both OFDM
2447 * and CCK) counter */
2448 __le32 beacon_rssi_a;
2449 __le32 beacon_rssi_b;
2450 __le32 beacon_rssi_c;
2451 __le32 beacon_energy_a;
2452 __le32 beacon_energy_b;
2453 __le32 beacon_energy_c;
2454 } __attribute__ ((packed));
2456 struct statistics_rx {
2457 struct statistics_rx_phy ofdm;
2458 struct statistics_rx_phy cck;
2459 struct statistics_rx_non_phy general;
2460 struct statistics_rx_ht_phy ofdm_ht;
2461 } __attribute__ ((packed));
2463 struct statistics_tx_non_phy_agg {
2465 __le32 ba_reschedule_frames;
2466 __le32 scd_query_agg_frame_cnt;
2467 __le32 scd_query_no_agg;
2468 __le32 scd_query_agg;
2469 __le32 scd_query_mismatch;
2470 __le32 frame_not_ready;
2472 __le32 bt_prio_kill;
2473 __le32 rx_ba_rsp_cnt;
2476 } __attribute__ ((packed));
2478 struct statistics_tx {
2479 __le32 preamble_cnt;
2480 __le32 rx_detected_cnt;
2481 __le32 bt_prio_defer_cnt;
2482 __le32 bt_prio_kill_cnt;
2483 __le32 few_bytes_cnt;
2486 __le32 expected_ack_cnt;
2487 __le32 actual_ack_cnt;
2488 __le32 dump_msdu_cnt;
2489 __le32 burst_abort_next_frame_mismatch_cnt;
2490 __le32 burst_abort_missing_next_frame_cnt;
2491 __le32 cts_timeout_collision;
2492 __le32 ack_or_ba_timeout_collision;
2493 struct statistics_tx_non_phy_agg agg;
2494 } __attribute__ ((packed));
2496 struct statistics_dbg {
2500 } __attribute__ ((packed));
2502 struct statistics_div {
2509 } __attribute__ ((packed));
2511 struct statistics_general {
2513 __le32 temperature_m;
2514 struct statistics_dbg dbg;
2518 __le32 ttl_timestamp;
2519 struct statistics_div div;
2520 __le32 rx_enable_counter;
2524 } __attribute__ ((packed));
2527 * REPLY_STATISTICS_CMD = 0x9c,
2528 * 3945 and 4965 identical.
2530 * This command triggers an immediate response containing uCode statistics.
2531 * The response is in the same format as STATISTICS_NOTIFICATION 0x9d, below.
2533 * If the CLEAR_STATS configuration flag is set, uCode will clear its
2534 * internal copy of the statistics (counters) after issuing the response.
2535 * This flag does not affect STATISTICS_NOTIFICATIONs after beacons (see below).
2537 * If the DISABLE_NOTIF configuration flag is set, uCode will not issue
2538 * STATISTICS_NOTIFICATIONs after received beacons (see below). This flag
2539 * does not affect the response to the REPLY_STATISTICS_CMD 0x9c itself.
2541 #define IWL_STATS_CONF_CLEAR_STATS cpu_to_le32(0x1) /* see above */
2542 #define IWL_STATS_CONF_DISABLE_NOTIF cpu_to_le32(0x2)/* see above */
2543 struct iwl_statistics_cmd {
2544 __le32 configuration_flags; /* IWL_STATS_CONF_* */
2545 } __attribute__ ((packed));
2548 * STATISTICS_NOTIFICATION = 0x9d (notification only, not a command)
2550 * By default, uCode issues this notification after receiving a beacon
2551 * while associated. To disable this behavior, set DISABLE_NOTIF flag in the
2552 * REPLY_STATISTICS_CMD 0x9c, above.
2554 * Statistics counters continue to increment beacon after beacon, but are
2555 * cleared when changing channels or when driver issues REPLY_STATISTICS_CMD
2556 * 0x9c with CLEAR_STATS bit set (see above).
2558 * uCode also issues this notification during scans. uCode clears statistics
2559 * appropriately so that each notification contains statistics for only the
2560 * one channel that has just been scanned.
2562 #define STATISTICS_REPLY_FLG_BAND_24G_MSK cpu_to_le32(0x2)
2563 #define STATISTICS_REPLY_FLG_FAT_MODE_MSK cpu_to_le32(0x8)
2564 struct iwl_notif_statistics {
2566 struct statistics_rx rx;
2567 struct statistics_tx tx;
2568 struct statistics_general general;
2569 } __attribute__ ((packed));
2573 * MISSED_BEACONS_NOTIFICATION = 0xa2 (notification only, not a command)
2575 /* if ucode missed CONSECUTIVE_MISSED_BCONS_TH beacons in a row,
2576 * then this notification will be sent. */
2577 #define CONSECUTIVE_MISSED_BCONS_TH 20
2579 struct iwl_missed_beacon_notif {
2580 __le32 consequtive_missed_beacons;
2581 __le32 total_missed_becons;
2582 __le32 num_expected_beacons;
2583 __le32 num_recvd_beacons;
2584 } __attribute__ ((packed));
2587 /******************************************************************************
2589 * Rx Calibration Commands:
2591 * With the uCode used for open source drivers, most Tx calibration (except
2592 * for Tx Power) and most Rx calibration is done by uCode during the
2593 * "initialize" phase of uCode boot. Driver must calibrate only:
2595 * 1) Tx power (depends on temperature), described elsewhere
2596 * 2) Receiver gain balance (optimize MIMO, and detect disconnected antennas)
2597 * 3) Receiver sensitivity (to optimize signal detection)
2599 *****************************************************************************/
2602 * SENSITIVITY_CMD = 0xa8 (command, has simple generic response)
2604 * This command sets up the Rx signal detector for a sensitivity level that
2605 * is high enough to lock onto all signals within the associated network,
2606 * but low enough to ignore signals that are below a certain threshold, so as
2607 * not to have too many "false alarms". False alarms are signals that the
2608 * Rx DSP tries to lock onto, but then discards after determining that they
2611 * The optimum number of false alarms is between 5 and 50 per 200 TUs
2612 * (200 * 1024 uSecs, i.e. 204.8 milliseconds) of actual Rx time (i.e.
2613 * time listening, not transmitting). Driver must adjust sensitivity so that
2614 * the ratio of actual false alarms to actual Rx time falls within this range.
2616 * While associated, uCode delivers STATISTICS_NOTIFICATIONs after each
2617 * received beacon. These provide information to the driver to analyze the
2618 * sensitivity. Don't analyze statistics that come in from scanning, or any
2619 * other non-associated-network source. Pertinent statistics include:
2621 * From "general" statistics (struct statistics_rx_non_phy):
2623 * (beacon_energy_[abc] & 0x0FF00) >> 8 (unsigned, higher value is lower level)
2624 * Measure of energy of desired signal. Used for establishing a level
2625 * below which the device does not detect signals.
2627 * (beacon_silence_rssi_[abc] & 0x0FF00) >> 8 (unsigned, units in dB)
2628 * Measure of background noise in silent period after beacon.
2631 * uSecs of actual Rx time during beacon period (varies according to
2632 * how much time was spent transmitting).
2634 * From "cck" and "ofdm" statistics (struct statistics_rx_phy), separately:
2637 * Signal locks abandoned early (before phy-level header).
2640 * Signal locks abandoned late (during phy-level header).
2642 * NOTE: Both false_alarm_cnt and plcp_err increment monotonically from
2643 * beacon to beacon, i.e. each value is an accumulation of all errors
2644 * before and including the latest beacon. Values will wrap around to 0
2645 * after counting up to 2^32 - 1. Driver must differentiate vs.
2646 * previous beacon's values to determine # false alarms in the current
2649 * Total number of false alarms = false_alarms + plcp_errs
2651 * For OFDM, adjust the following table entries in struct iwl_sensitivity_cmd
2652 * (notice that the start points for OFDM are at or close to settings for
2653 * maximum sensitivity):
2656 * HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX 90 / 85 / 120
2657 * HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX 170 / 170 / 210
2658 * HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX 105 / 105 / 140
2659 * HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX 220 / 220 / 270
2661 * If actual rate of OFDM false alarms (+ plcp_errors) is too high
2662 * (greater than 50 for each 204.8 msecs listening), reduce sensitivity
2663 * by *adding* 1 to all 4 of the table entries above, up to the max for
2664 * each entry. Conversely, if false alarm rate is too low (less than 5
2665 * for each 204.8 msecs listening), *subtract* 1 from each entry to
2666 * increase sensitivity.
2668 * For CCK sensitivity, keep track of the following:
2670 * 1). 20-beacon history of maximum background noise, indicated by
2671 * (beacon_silence_rssi_[abc] & 0x0FF00), units in dB, across the
2672 * 3 receivers. For any given beacon, the "silence reference" is
2673 * the maximum of last 60 samples (20 beacons * 3 receivers).
2675 * 2). 10-beacon history of strongest signal level, as indicated
2676 * by (beacon_energy_[abc] & 0x0FF00) >> 8, across the 3 receivers,
2677 * i.e. the strength of the signal through the best receiver at the
2678 * moment. These measurements are "upside down", with lower values
2679 * for stronger signals, so max energy will be *minimum* value.
2681 * Then for any given beacon, the driver must determine the *weakest*
2682 * of the strongest signals; this is the minimum level that needs to be
2683 * successfully detected, when using the best receiver at the moment.
2684 * "Max cck energy" is the maximum (higher value means lower energy!)
2685 * of the last 10 minima. Once this is determined, driver must add
2686 * a little margin by adding "6" to it.
2688 * 3). Number of consecutive beacon periods with too few false alarms.
2689 * Reset this to 0 at the first beacon period that falls within the
2690 * "good" range (5 to 50 false alarms per 204.8 milliseconds rx).
2692 * Then, adjust the following CCK table entries in struct iwl_sensitivity_cmd
2693 * (notice that the start points for CCK are at maximum sensitivity):
2696 * HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX 125 / 125 / 200
2697 * HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX 200 / 200 / 400
2698 * HD_MIN_ENERGY_CCK_DET_INDEX 100 / 0 / 100
2700 * If actual rate of CCK false alarms (+ plcp_errors) is too high
2701 * (greater than 50 for each 204.8 msecs listening), method for reducing
2704 * 1) *Add* 3 to value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX,
2707 * 2) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX is < 160,
2708 * sensitivity has been reduced a significant amount; bring it up to
2709 * a moderate 161. Otherwise, *add* 3, up to max 200.
2711 * 3) a) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX is > 160,
2712 * sensitivity has been reduced only a moderate or small amount;
2713 * *subtract* 2 from value in HD_MIN_ENERGY_CCK_DET_INDEX,
2714 * down to min 0. Otherwise (if gain has been significantly reduced),
2715 * don't change the HD_MIN_ENERGY_CCK_DET_INDEX value.
2717 * b) Save a snapshot of the "silence reference".
2719 * If actual rate of CCK false alarms (+ plcp_errors) is too low
2720 * (less than 5 for each 204.8 msecs listening), method for increasing
2721 * sensitivity is used only if:
2723 * 1a) Previous beacon did not have too many false alarms
2724 * 1b) AND difference between previous "silence reference" and current
2725 * "silence reference" (prev - current) is 2 or more,
2726 * OR 2) 100 or more consecutive beacon periods have had rate of
2727 * less than 5 false alarms per 204.8 milliseconds rx time.
2729 * Method for increasing sensitivity:
2731 * 1) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX,
2734 * 2) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX,
2737 * 3) *Add* 2 to value in HD_MIN_ENERGY_CCK_DET_INDEX, up to max 100.
2739 * If actual rate of CCK false alarms (+ plcp_errors) is within good range
2740 * (between 5 and 50 for each 204.8 msecs listening):
2742 * 1) Save a snapshot of the silence reference.
2744 * 2) If previous beacon had too many CCK false alarms (+ plcp_errors),
2745 * give some extra margin to energy threshold by *subtracting* 8
2746 * from value in HD_MIN_ENERGY_CCK_DET_INDEX.
2748 * For all cases (too few, too many, good range), make sure that the CCK
2749 * detection threshold (energy) is below the energy level for robust
2750 * detection over the past 10 beacon periods, the "Max cck energy".
2751 * Lower values mean higher energy; this means making sure that the value
2752 * in HD_MIN_ENERGY_CCK_DET_INDEX is at or *above* "Max cck energy".
2754 * Driver should set the following entries to fixed values:
2756 * HD_MIN_ENERGY_OFDM_DET_INDEX 100
2757 * HD_BARKER_CORR_TH_ADD_MIN_INDEX 190
2758 * HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX 390
2759 * HD_OFDM_ENERGY_TH_IN_INDEX 62
2763 * Table entries in SENSITIVITY_CMD (struct iwl_sensitivity_cmd)
2765 #define HD_TABLE_SIZE (11) /* number of entries */
2766 #define HD_MIN_ENERGY_CCK_DET_INDEX (0) /* table indexes */
2767 #define HD_MIN_ENERGY_OFDM_DET_INDEX (1)
2768 #define HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX (2)
2769 #define HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX (3)
2770 #define HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX (4)
2771 #define HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX (5)
2772 #define HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX (6)
2773 #define HD_BARKER_CORR_TH_ADD_MIN_INDEX (7)
2774 #define HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX (8)
2775 #define HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX (9)
2776 #define HD_OFDM_ENERGY_TH_IN_INDEX (10)
2778 /* Control field in struct iwl_sensitivity_cmd */
2779 #define SENSITIVITY_CMD_CONTROL_DEFAULT_TABLE cpu_to_le16(0)
2780 #define SENSITIVITY_CMD_CONTROL_WORK_TABLE cpu_to_le16(1)
2783 * struct iwl_sensitivity_cmd
2784 * @control: (1) updates working table, (0) updates default table
2785 * @table: energy threshold values, use HD_* as index into table
2787 * Always use "1" in "control" to update uCode's working table and DSP.
2789 struct iwl_sensitivity_cmd {
2790 __le16 control; /* always use "1" */
2791 __le16 table[HD_TABLE_SIZE]; /* use HD_* as index */
2792 } __attribute__ ((packed));
2796 * REPLY_PHY_CALIBRATION_CMD = 0xb0 (command, has simple generic response)
2798 * This command sets the relative gains of 4965's 3 radio receiver chains.
2800 * After the first association, driver should accumulate signal and noise
2801 * statistics from the STATISTICS_NOTIFICATIONs that follow the first 20
2802 * beacons from the associated network (don't collect statistics that come
2803 * in from scanning, or any other non-network source).
2805 * DISCONNECTED ANTENNA:
2807 * Driver should determine which antennas are actually connected, by comparing
2808 * average beacon signal levels for the 3 Rx chains. Accumulate (add) the
2809 * following values over 20 beacons, one accumulator for each of the chains
2810 * a/b/c, from struct statistics_rx_non_phy:
2812 * beacon_rssi_[abc] & 0x0FF (unsigned, units in dB)
2814 * Find the strongest signal from among a/b/c. Compare the other two to the
2815 * strongest. If any signal is more than 15 dB (times 20, unless you
2816 * divide the accumulated values by 20) below the strongest, the driver
2817 * considers that antenna to be disconnected, and should not try to use that
2818 * antenna/chain for Rx or Tx. If both A and B seem to be disconnected,
2819 * driver should declare the stronger one as connected, and attempt to use it
2820 * (A and B are the only 2 Tx chains!).
2825 * Driver should balance the 3 receivers (but just the ones that are connected
2826 * to antennas, see above) for gain, by comparing the average signal levels
2827 * detected during the silence after each beacon (background noise).
2828 * Accumulate (add) the following values over 20 beacons, one accumulator for
2829 * each of the chains a/b/c, from struct statistics_rx_non_phy:
2831 * beacon_silence_rssi_[abc] & 0x0FF (unsigned, units in dB)
2833 * Find the weakest background noise level from among a/b/c. This Rx chain
2834 * will be the reference, with 0 gain adjustment. Attenuate other channels by
2835 * finding noise difference:
2837 * (accum_noise[i] - accum_noise[reference]) / 30
2839 * The "30" adjusts the dB in the 20 accumulated samples to units of 1.5 dB.
2840 * For use in diff_gain_[abc] fields of struct iwl_calibration_cmd, the
2841 * driver should limit the difference results to a range of 0-3 (0-4.5 dB),
2842 * and set bit 2 to indicate "reduce gain". The value for the reference
2843 * (weakest) chain should be "0".
2845 * diff_gain_[abc] bit fields:
2846 * 2: (1) reduce gain, (0) increase gain
2847 * 1-0: amount of gain, units of 1.5 dB
2850 /* Phy calibration command for series */
2853 IWL_PHY_CALIBRATE_DIFF_GAIN_CMD = 7,
2854 IWL_PHY_CALIBRATE_DC_CMD = 8,
2855 IWL_PHY_CALIBRATE_LO_CMD = 9,
2856 IWL_PHY_CALIBRATE_RX_BB_CMD = 10,
2857 IWL_PHY_CALIBRATE_TX_IQ_CMD = 11,
2858 IWL_PHY_CALIBRATE_RX_IQ_CMD = 12,
2859 IWL_PHY_CALIBRATION_NOISE_CMD = 13,
2860 IWL_PHY_CALIBRATE_AGC_TABLE_CMD = 14,
2861 IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD = 15,
2862 IWL_PHY_CALIBRATE_BASE_BAND_CMD = 16,
2863 IWL_PHY_CALIBRATE_TX_IQ_PERD_CMD = 17,
2864 IWL_PHY_CALIBRATE_CHAIN_NOISE_RESET_CMD = 18,
2865 IWL_PHY_CALIBRATE_CHAIN_NOISE_GAIN_CMD = 19,
2869 #define IWL_CALIB_INIT_CFG_ALL 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 iwl_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 iwl_calib_hdr {
2896 } __attribute__ ((packed));
2898 struct iwl_calib_cmd {
2899 struct iwl_calib_hdr hdr;
2901 } __attribute__ ((packed));
2903 /* IWL_PHY_CALIBRATE_DIFF_GAIN_CMD (7) */
2904 struct iwl_calib_diff_gain_cmd {
2905 struct iwl_calib_hdr hdr;
2906 s8 diff_gain_a; /* see above */
2910 } __attribute__ ((packed));
2912 struct iwl_calib_xtal_freq_cmd {
2913 struct iwl_calib_hdr hdr;
2917 } __attribute__ ((packed));
2919 /* IWL_PHY_CALIBRATE_CHAIN_NOISE_RESET_CMD */
2920 struct iwl_calib_chain_noise_reset_cmd {
2921 struct iwl_calib_hdr hdr;
2925 /* IWL_PHY_CALIBRATE_CHAIN_NOISE_GAIN_CMD */
2926 struct iwl_calib_chain_noise_gain_cmd {
2927 struct iwl_calib_hdr hdr;
2931 } __attribute__ ((packed));
2933 /******************************************************************************
2935 * Miscellaneous Commands:
2937 *****************************************************************************/
2940 * LEDs Command & Response
2941 * REPLY_LEDS_CMD = 0x48 (command, has simple generic response)
2943 * For each of 3 possible LEDs (Activity/Link/Tech, selected by "id" field),
2944 * this command turns it on or off, or sets up a periodic blinking cycle.
2946 struct iwl_led_cmd {
2947 __le32 interval; /* "interval" in uSec */
2948 u8 id; /* 1: Activity, 2: Link, 3: Tech */
2949 u8 off; /* # intervals off while blinking;
2950 * "0", with >0 "on" value, turns LED on */
2951 u8 on; /* # intervals on while blinking;
2952 * "0", regardless of "off", turns LED off */
2954 } __attribute__ ((packed));
2957 * Coexistence WIFI/WIMAX Command
2958 * COEX_PRIORITY_TABLE_CMD = 0x5a
2962 COEX_UNASSOC_IDLE = 0,
2963 COEX_UNASSOC_MANUAL_SCAN = 1,
2964 COEX_UNASSOC_AUTO_SCAN = 2,
2965 COEX_CALIBRATION = 3,
2966 COEX_PERIODIC_CALIBRATION = 4,
2967 COEX_CONNECTION_ESTAB = 5,
2968 COEX_ASSOCIATED_IDLE = 6,
2969 COEX_ASSOC_MANUAL_SCAN = 7,
2970 COEX_ASSOC_AUTO_SCAN = 8,
2971 COEX_ASSOC_ACTIVE_LEVEL = 9,
2974 COEX_STAND_ALONE_DEBUG = 12,
2975 COEX_IPAN_ASSOC_LEVEL = 13,
2978 COEX_NUM_OF_EVENTS = 16
2981 struct iwl_wimax_coex_event_entry {
2986 } __attribute__ ((packed));
2988 /* COEX flag masks */
2990 /* Station table is valid */
2991 #define COEX_FLAGS_STA_TABLE_VALID_MSK (0x1)
2992 /* UnMask wake up src at unassociated sleep */
2993 #define COEX_FLAGS_UNASSOC_WA_UNMASK_MSK (0x4)
2994 /* UnMask wake up src at associated sleep */
2995 #define COEX_FLAGS_ASSOC_WA_UNMASK_MSK (0x8)
2996 /* Enable CoEx feature. */
2997 #define COEX_FLAGS_COEX_ENABLE_MSK (0x80)
2999 struct iwl_wimax_coex_cmd {
3002 struct iwl_wimax_coex_event_entry sta_prio[COEX_NUM_OF_EVENTS];
3003 } __attribute__ ((packed));
3005 /******************************************************************************
3007 * Union of all expected notifications/responses:
3009 *****************************************************************************/
3011 struct iwl_rx_packet {
3013 struct iwl_cmd_header hdr;
3015 struct iwl_alive_resp alive_frame;
3016 struct iwl_spectrum_notification spectrum_notif;
3017 struct iwl_csa_notification csa_notif;
3018 struct iwl_error_resp err_resp;
3019 struct iwl_card_state_notif card_state_notif;
3020 struct iwl_add_sta_resp add_sta;
3021 struct iwl_rem_sta_resp rem_sta;
3022 struct iwl_sleep_notification sleep_notif;
3023 struct iwl_spectrum_resp spectrum;
3024 struct iwl_notif_statistics stats;
3025 struct iwl_compressed_ba_resp compressed_ba;
3026 struct iwl_missed_beacon_notif missed_beacon;
3030 } __attribute__ ((packed));
3032 int iwl_agn_check_rxon_cmd(struct iwl_rxon_cmd *rxon);
3034 #endif /* __iwl_commands_h__ */