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 - 2009 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 - 2009 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__
74 /* uCode version contains 4 values: Major/Minor/API/Serial */
75 #define IWL_UCODE_MAJOR(ver) (((ver) & 0xFF000000) >> 24)
76 #define IWL_UCODE_MINOR(ver) (((ver) & 0x00FF0000) >> 16)
77 #define IWL_UCODE_API(ver) (((ver) & 0x0000FF00) >> 8)
78 #define IWL_UCODE_SERIAL(ver) ((ver) & 0x000000FF)
82 #define IWL_CCK_RATES 4
83 #define IWL_OFDM_RATES 8
84 #define IWL_MAX_RATES (IWL_CCK_RATES + IWL_OFDM_RATES)
90 /* RXON and QOS commands */
92 REPLY_RXON_ASSOC = 0x11,
93 REPLY_QOS_PARAM = 0x13,
94 REPLY_RXON_TIMING = 0x14,
96 /* Multi-Station support */
98 REPLY_REMOVE_STA = 0x19, /* not used */
99 REPLY_REMOVE_ALL_STA = 0x1a, /* not used */
105 REPLY_3945_RX = 0x1b, /* 3945 only */
107 REPLY_RATE_SCALE = 0x47, /* 3945 only */
108 REPLY_LEDS_CMD = 0x48,
109 REPLY_TX_LINK_QUALITY_CMD = 0x4e, /* 4965 only */
111 /* WiMAX coexistence */
112 COEX_PRIORITY_TABLE_CMD = 0x5a, /*5000 only */
113 COEX_MEDIUM_NOTIFICATION = 0x5b,
114 COEX_EVENT_CMD = 0x5c,
117 CALIBRATION_CFG_CMD = 0x65,
118 CALIBRATION_RES_NOTIFICATION = 0x66,
119 CALIBRATION_COMPLETE_NOTIFICATION = 0x67,
121 /* 802.11h related */
122 RADAR_NOTIFICATION = 0x70, /* not used */
123 REPLY_QUIET_CMD = 0x71, /* not used */
124 REPLY_CHANNEL_SWITCH = 0x72,
125 CHANNEL_SWITCH_NOTIFICATION = 0x73,
126 REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74,
127 SPECTRUM_MEASURE_NOTIFICATION = 0x75,
129 /* Power Management */
130 POWER_TABLE_CMD = 0x77,
131 PM_SLEEP_NOTIFICATION = 0x7A,
132 PM_DEBUG_STATISTIC_NOTIFIC = 0x7B,
134 /* Scan commands and notifications */
135 REPLY_SCAN_CMD = 0x80,
136 REPLY_SCAN_ABORT_CMD = 0x81,
137 SCAN_START_NOTIFICATION = 0x82,
138 SCAN_RESULTS_NOTIFICATION = 0x83,
139 SCAN_COMPLETE_NOTIFICATION = 0x84,
141 /* IBSS/AP commands */
142 BEACON_NOTIFICATION = 0x90,
143 REPLY_TX_BEACON = 0x91,
144 WHO_IS_AWAKE_NOTIFICATION = 0x94, /* not used */
146 /* Miscellaneous commands */
147 QUIET_NOTIFICATION = 0x96, /* not used */
148 REPLY_TX_PWR_TABLE_CMD = 0x97,
149 REPLY_TX_POWER_DBM_CMD = 0x98,
150 MEASURE_ABORT_NOTIFICATION = 0x99, /* not used */
152 /* Bluetooth device coexistence config command */
153 REPLY_BT_CONFIG = 0x9b,
156 REPLY_STATISTICS_CMD = 0x9c,
157 STATISTICS_NOTIFICATION = 0x9d,
159 /* RF-KILL commands and notifications */
160 REPLY_CARD_STATE_CMD = 0xa0,
161 CARD_STATE_NOTIFICATION = 0xa1,
163 /* Missed beacons notification */
164 MISSED_BEACONS_NOTIFICATION = 0xa2,
166 REPLY_CT_KILL_CONFIG_CMD = 0xa4,
167 SENSITIVITY_CMD = 0xa8,
168 REPLY_PHY_CALIBRATION_CMD = 0xb0,
169 REPLY_RX_PHY_CMD = 0xc0,
170 REPLY_RX_MPDU_CMD = 0xc1,
172 REPLY_COMPRESSED_BA = 0xc5,
176 /******************************************************************************
178 * Commonly used structures and definitions:
179 * Command header, rate_n_flags, txpower
181 *****************************************************************************/
183 /* iwl_cmd_header flags value */
184 #define IWL_CMD_FAILED_MSK 0x40
186 #define SEQ_TO_QUEUE(s) (((s) >> 8) & 0x1f)
187 #define QUEUE_TO_SEQ(q) (((q) & 0x1f) << 8)
188 #define SEQ_TO_INDEX(s) ((s) & 0xff)
189 #define INDEX_TO_SEQ(i) ((i) & 0xff)
190 #define SEQ_HUGE_FRAME cpu_to_le16(0x4000)
191 #define SEQ_RX_FRAME cpu_to_le16(0x8000)
194 * struct iwl_cmd_header
196 * This header format appears in the beginning of each command sent from the
197 * driver, and each response/notification received from uCode.
199 struct iwl_cmd_header {
200 u8 cmd; /* Command ID: REPLY_RXON, etc. */
201 u8 flags; /* 0:5 reserved, 6 abort, 7 internal */
203 * The driver sets up the sequence number to values of its choosing.
204 * uCode does not use this value, but passes it back to the driver
205 * when sending the response to each driver-originated command, so
206 * the driver can match the response to the command. Since the values
207 * don't get used by uCode, the driver may set up an arbitrary format.
209 * There is one exception: uCode sets bit 15 when it originates
210 * the response/notification, i.e. when the response/notification
211 * is not a direct response to a command sent by the driver. For
212 * example, uCode issues REPLY_3945_RX when it sends a received frame
213 * to the driver; it is not a direct response to any driver command.
215 * The Linux driver uses the following format:
217 * 0:7 tfd index - position within TX queue
220 * 14 huge - driver sets this to indicate command is in the
221 * 'huge' storage at the end of the command buffers
222 * 15 unsolicited RX or uCode-originated notification
226 /* command or response/notification data follows immediately */
228 } __attribute__ ((packed));
232 * struct iwl3945_tx_power
234 * Used in REPLY_TX_PWR_TABLE_CMD, REPLY_SCAN_CMD, REPLY_CHANNEL_SWITCH
236 * Each entry contains two values:
237 * 1) DSP gain (or sometimes called DSP attenuation). This is a fine-grained
238 * linear value that multiplies the output of the digital signal processor,
239 * before being sent to the analog radio.
240 * 2) Radio gain. This sets the analog gain of the radio Tx path.
241 * It is a coarser setting, and behaves in a logarithmic (dB) fashion.
243 * Driver obtains values from struct iwl3945_tx_power power_gain_table[][].
245 struct iwl3945_tx_power {
246 u8 tx_gain; /* gain for analog radio */
247 u8 dsp_atten; /* gain for DSP */
248 } __attribute__ ((packed));
251 * struct iwl3945_power_per_rate
253 * Used in REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH
255 struct iwl3945_power_per_rate {
257 struct iwl3945_tx_power tpc;
259 } __attribute__ ((packed));
262 * iwlagn rate_n_flags bit fields
264 * rate_n_flags format is used in following iwlagn commands:
265 * REPLY_RX (response only)
266 * REPLY_RX_MPDU (response only)
267 * REPLY_TX (both command and response)
268 * REPLY_TX_LINK_QUALITY_CMD
270 * High-throughput (HT) rate format for bits 7:0 (bit 8 must be "1"):
280 * 4-3: 0) Single stream (SISO)
281 * 1) Dual stream (MIMO)
282 * 2) Triple stream (MIMO)
284 * 5: Value of 0x20 in bits 7:0 indicates 6 Mbps FAT duplicate data
286 * Legacy OFDM rate format for bits 7:0 (bit 8 must be "0", bit 9 "0"):
296 * Legacy CCK rate format for bits 7:0 (bit 8 must be "0", bit 9 "1"):
302 #define RATE_MCS_CODE_MSK 0x7
303 #define RATE_MCS_SPATIAL_POS 3
304 #define RATE_MCS_SPATIAL_MSK 0x18
305 #define RATE_MCS_HT_DUP_POS 5
306 #define RATE_MCS_HT_DUP_MSK 0x20
308 /* Bit 8: (1) HT format, (0) legacy format in bits 7:0 */
309 #define RATE_MCS_FLAGS_POS 8
310 #define RATE_MCS_HT_POS 8
311 #define RATE_MCS_HT_MSK 0x100
313 /* Bit 9: (1) CCK, (0) OFDM. HT (bit 8) must be "0" for this bit to be valid */
314 #define RATE_MCS_CCK_POS 9
315 #define RATE_MCS_CCK_MSK 0x200
317 /* Bit 10: (1) Use Green Field preamble */
318 #define RATE_MCS_GF_POS 10
319 #define RATE_MCS_GF_MSK 0x400
321 /* Bit 11: (1) Use 40Mhz FAT chnl width, (0) use 20 MHz legacy chnl width */
322 #define RATE_MCS_FAT_POS 11
323 #define RATE_MCS_FAT_MSK 0x800
325 /* Bit 12: (1) Duplicate data on both 20MHz chnls. FAT (bit 11) must be set. */
326 #define RATE_MCS_DUP_POS 12
327 #define RATE_MCS_DUP_MSK 0x1000
329 /* Bit 13: (1) Short guard interval (0.4 usec), (0) normal GI (0.8 usec) */
330 #define RATE_MCS_SGI_POS 13
331 #define RATE_MCS_SGI_MSK 0x2000
334 * rate_n_flags Tx antenna masks
335 * 4965 has 2 transmitters
336 * 5100 has 1 transmitter B
337 * 5150 has 1 transmitter A
338 * 5300 has 3 transmitters
339 * 5350 has 3 transmitters
342 #define RATE_MCS_ANT_POS 14
343 #define RATE_MCS_ANT_A_MSK 0x04000
344 #define RATE_MCS_ANT_B_MSK 0x08000
345 #define RATE_MCS_ANT_C_MSK 0x10000
346 #define RATE_MCS_ANT_AB_MSK (RATE_MCS_ANT_A_MSK | RATE_MCS_ANT_B_MSK)
347 #define RATE_MCS_ANT_ABC_MSK (RATE_MCS_ANT_AB_MSK | RATE_MCS_ANT_C_MSK)
348 #define RATE_ANT_NUM 3
350 #define POWER_TABLE_NUM_ENTRIES 33
351 #define POWER_TABLE_NUM_HT_OFDM_ENTRIES 32
352 #define POWER_TABLE_CCK_ENTRY 32
355 * union iwl4965_tx_power_dual_stream
357 * Host format used for REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH
358 * Use __le32 version (struct tx_power_dual_stream) when building command.
360 * Driver provides radio gain and DSP attenuation settings to device in pairs,
361 * one value for each transmitter chain. The first value is for transmitter A,
362 * second for transmitter B.
364 * For SISO bit rates, both values in a pair should be identical.
365 * For MIMO rates, one value may be different from the other,
366 * in order to balance the Tx output between the two transmitters.
368 * See more details in doc for TXPOWER in iwl-4965-hw.h.
370 union iwl4965_tx_power_dual_stream {
373 u8 dsp_predis_atten[2];
379 * struct tx_power_dual_stream
381 * Table entries in REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH
383 * Same format as iwl_tx_power_dual_stream, but __le32
385 struct tx_power_dual_stream {
387 } __attribute__ ((packed));
390 * struct iwl4965_tx_power_db
392 * Entire table within REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH
394 struct iwl4965_tx_power_db {
395 struct tx_power_dual_stream power_tbl[POWER_TABLE_NUM_ENTRIES];
396 } __attribute__ ((packed));
399 * Command REPLY_TX_POWER_DBM_CMD = 0x98
400 * struct iwl5000_tx_power_dbm_cmd
402 #define IWL50_TX_POWER_AUTO 0x7f
403 #define IWL50_TX_POWER_NO_CLOSED (0x1 << 6)
405 struct iwl5000_tx_power_dbm_cmd {
406 s8 global_lmt; /*in half-dBm (e.g. 30 = 15 dBm) */
408 s8 srv_chan_lmt; /*in half-dBm (e.g. 30 = 15 dBm) */
410 } __attribute__ ((packed));
412 /******************************************************************************
414 * Alive and Error Commands & Responses:
416 *****************************************************************************/
418 #define UCODE_VALID_OK cpu_to_le32(0x1)
419 #define INITIALIZE_SUBTYPE (9)
422 * ("Initialize") REPLY_ALIVE = 0x1 (response only, not a command)
424 * uCode issues this "initialize alive" notification once the initialization
425 * uCode image has completed its work, and is ready to load the runtime image.
426 * This is the *first* "alive" notification that the driver will receive after
427 * rebooting uCode; the "initialize" alive is indicated by subtype field == 9.
429 * See comments documenting "BSM" (bootstrap state machine).
431 * For 4965, this notification contains important calibration data for
432 * calculating txpower settings:
434 * 1) Power supply voltage indication. The voltage sensor outputs higher
435 * values for lower voltage, and vice verse.
437 * 2) Temperature measurement parameters, for each of two channel widths
438 * (20 MHz and 40 MHz) supported by the radios. Temperature sensing
439 * is done via one of the receiver chains, and channel width influences
442 * 3) Tx gain compensation to balance 4965's 2 Tx chains for MIMO operation,
443 * for each of 5 frequency ranges.
445 struct iwl_init_alive_resp {
451 u8 ver_subtype; /* "9" for initialize alive */
453 __le32 log_event_table_ptr;
454 __le32 error_event_table_ptr;
458 /* calibration values from "initialize" uCode */
459 __le32 voltage; /* signed, higher value is lower voltage */
460 __le32 therm_r1[2]; /* signed, 1st for normal, 2nd for FAT channel*/
461 __le32 therm_r2[2]; /* signed */
462 __le32 therm_r3[2]; /* signed */
463 __le32 therm_r4[2]; /* signed */
464 __le32 tx_atten[5][2]; /* signed MIMO gain comp, 5 freq groups,
466 } __attribute__ ((packed));
470 * REPLY_ALIVE = 0x1 (response only, not a command)
472 * uCode issues this "alive" notification once the runtime image is ready
473 * to receive commands from the driver. This is the *second* "alive"
474 * notification that the driver will receive after rebooting uCode;
475 * this "alive" is indicated by subtype field != 9.
477 * See comments documenting "BSM" (bootstrap state machine).
479 * This response includes two pointers to structures within the device's
480 * data SRAM (access via HBUS_TARG_MEM_* regs) that are useful for debugging:
482 * 1) log_event_table_ptr indicates base of the event log. This traces
483 * a 256-entry history of uCode execution within a circular buffer.
484 * Its header format is:
486 * __le32 log_size; log capacity (in number of entries)
487 * __le32 type; (1) timestamp with each entry, (0) no timestamp
488 * __le32 wraps; # times uCode has wrapped to top of circular buffer
489 * __le32 write_index; next circular buffer entry that uCode would fill
491 * The header is followed by the circular buffer of log entries. Entries
492 * with timestamps have the following format:
494 * __le32 event_id; range 0 - 1500
495 * __le32 timestamp; low 32 bits of TSF (of network, if associated)
496 * __le32 data; event_id-specific data value
498 * Entries without timestamps contain only event_id and data.
500 * 2) error_event_table_ptr indicates base of the error log. This contains
501 * information about any uCode error that occurs. For 4965, the format
502 * of the error log is:
504 * __le32 valid; (nonzero) valid, (0) log is empty
505 * __le32 error_id; type of error
506 * __le32 pc; program counter
507 * __le32 blink1; branch link
508 * __le32 blink2; branch link
509 * __le32 ilink1; interrupt link
510 * __le32 ilink2; interrupt link
511 * __le32 data1; error-specific data
512 * __le32 data2; error-specific data
513 * __le32 line; source code line of error
514 * __le32 bcon_time; beacon timer
515 * __le32 tsf_low; network timestamp function timer
516 * __le32 tsf_hi; network timestamp function timer
518 * The Linux driver can print both logs to the system log when a uCode error
521 struct iwl_alive_resp {
527 u8 ver_subtype; /* not "9" for runtime alive */
529 __le32 log_event_table_ptr; /* SRAM address for event log */
530 __le32 error_event_table_ptr; /* SRAM address for error log */
533 } __attribute__ ((packed));
536 * REPLY_ERROR = 0x2 (response only, not a command)
538 struct iwl_error_resp {
542 __le16 bad_cmd_seq_num;
545 } __attribute__ ((packed));
547 /******************************************************************************
549 * RXON Commands & Responses:
551 *****************************************************************************/
554 * Rx config defines & structure
556 /* rx_config device types */
558 RXON_DEV_TYPE_AP = 1,
559 RXON_DEV_TYPE_ESS = 3,
560 RXON_DEV_TYPE_IBSS = 4,
561 RXON_DEV_TYPE_SNIFFER = 6,
565 #define RXON_RX_CHAIN_DRIVER_FORCE_MSK cpu_to_le16(0x1 << 0)
566 #define RXON_RX_CHAIN_DRIVER_FORCE_POS (0)
567 #define RXON_RX_CHAIN_VALID_MSK cpu_to_le16(0x7 << 1)
568 #define RXON_RX_CHAIN_VALID_POS (1)
569 #define RXON_RX_CHAIN_FORCE_SEL_MSK cpu_to_le16(0x7 << 4)
570 #define RXON_RX_CHAIN_FORCE_SEL_POS (4)
571 #define RXON_RX_CHAIN_FORCE_MIMO_SEL_MSK cpu_to_le16(0x7 << 7)
572 #define RXON_RX_CHAIN_FORCE_MIMO_SEL_POS (7)
573 #define RXON_RX_CHAIN_CNT_MSK cpu_to_le16(0x3 << 10)
574 #define RXON_RX_CHAIN_CNT_POS (10)
575 #define RXON_RX_CHAIN_MIMO_CNT_MSK cpu_to_le16(0x3 << 12)
576 #define RXON_RX_CHAIN_MIMO_CNT_POS (12)
577 #define RXON_RX_CHAIN_MIMO_FORCE_MSK cpu_to_le16(0x1 << 14)
578 #define RXON_RX_CHAIN_MIMO_FORCE_POS (14)
580 /* rx_config flags */
581 /* band & modulation selection */
582 #define RXON_FLG_BAND_24G_MSK cpu_to_le32(1 << 0)
583 #define RXON_FLG_CCK_MSK cpu_to_le32(1 << 1)
584 /* auto detection enable */
585 #define RXON_FLG_AUTO_DETECT_MSK cpu_to_le32(1 << 2)
586 /* TGg protection when tx */
587 #define RXON_FLG_TGG_PROTECT_MSK cpu_to_le32(1 << 3)
588 /* cck short slot & preamble */
589 #define RXON_FLG_SHORT_SLOT_MSK cpu_to_le32(1 << 4)
590 #define RXON_FLG_SHORT_PREAMBLE_MSK cpu_to_le32(1 << 5)
591 /* antenna selection */
592 #define RXON_FLG_DIS_DIV_MSK cpu_to_le32(1 << 7)
593 #define RXON_FLG_ANT_SEL_MSK cpu_to_le32(0x0f00)
594 #define RXON_FLG_ANT_A_MSK cpu_to_le32(1 << 8)
595 #define RXON_FLG_ANT_B_MSK cpu_to_le32(1 << 9)
596 /* radar detection enable */
597 #define RXON_FLG_RADAR_DETECT_MSK cpu_to_le32(1 << 12)
598 #define RXON_FLG_TGJ_NARROW_BAND_MSK cpu_to_le32(1 << 13)
599 /* rx response to host with 8-byte TSF
600 * (according to ON_AIR deassertion) */
601 #define RXON_FLG_TSF2HOST_MSK cpu_to_le32(1 << 15)
605 #define RXON_FLG_CTRL_CHANNEL_LOC_POS (22)
606 #define RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK cpu_to_le32(0x1 << 22)
608 #define RXON_FLG_HT_OPERATING_MODE_POS (23)
610 #define RXON_FLG_HT_PROT_MSK cpu_to_le32(0x1 << 23)
611 #define RXON_FLG_FAT_PROT_MSK cpu_to_le32(0x2 << 23)
613 #define RXON_FLG_CHANNEL_MODE_POS (25)
614 #define RXON_FLG_CHANNEL_MODE_MSK cpu_to_le32(0x3 << 25)
615 #define RXON_FLG_CHANNEL_MODE_PURE_40_MSK cpu_to_le32(0x1 << 25)
616 #define RXON_FLG_CHANNEL_MODE_MIXED_MSK cpu_to_le32(0x2 << 25)
617 /* CTS to self (if spec allows) flag */
618 #define RXON_FLG_SELF_CTS_EN cpu_to_le32(0x1<<30)
620 /* rx_config filter flags */
621 /* accept all data frames */
622 #define RXON_FILTER_PROMISC_MSK cpu_to_le32(1 << 0)
623 /* pass control & management to host */
624 #define RXON_FILTER_CTL2HOST_MSK cpu_to_le32(1 << 1)
625 /* accept multi-cast */
626 #define RXON_FILTER_ACCEPT_GRP_MSK cpu_to_le32(1 << 2)
627 /* don't decrypt uni-cast frames */
628 #define RXON_FILTER_DIS_DECRYPT_MSK cpu_to_le32(1 << 3)
629 /* don't decrypt multi-cast frames */
630 #define RXON_FILTER_DIS_GRP_DECRYPT_MSK cpu_to_le32(1 << 4)
631 /* STA is associated */
632 #define RXON_FILTER_ASSOC_MSK cpu_to_le32(1 << 5)
633 /* transfer to host non bssid beacons in associated state */
634 #define RXON_FILTER_BCON_AWARE_MSK cpu_to_le32(1 << 6)
637 * REPLY_RXON = 0x10 (command, has simple generic response)
639 * RXON tunes the radio tuner to a service channel, and sets up a number
640 * of parameters that are used primarily for Rx, but also for Tx operations.
642 * NOTE: When tuning to a new channel, driver must set the
643 * RXON_FILTER_ASSOC_MSK to 0. This will clear station-dependent
644 * info within the device, including the station tables, tx retry
645 * rate tables, and txpower tables. Driver must build a new station
646 * table and txpower table before transmitting anything on the RXON
649 * NOTE: All RXONs wipe clean the internal txpower table. Driver must
650 * issue a new REPLY_TX_PWR_TABLE_CMD after each REPLY_RXON (0x10),
651 * regardless of whether RXON_FILTER_ASSOC_MSK is set.
654 struct iwl3945_rxon_cmd {
659 u8 wlap_bssid_addr[6];
671 } __attribute__ ((packed));
673 struct iwl4965_rxon_cmd {
678 u8 wlap_bssid_addr[6];
689 u8 ofdm_ht_single_stream_basic_rates;
690 u8 ofdm_ht_dual_stream_basic_rates;
691 } __attribute__ ((packed));
693 /* 5000 HW just extend this command */
694 struct iwl_rxon_cmd {
699 u8 wlap_bssid_addr[6];
710 u8 ofdm_ht_single_stream_basic_rates;
711 u8 ofdm_ht_dual_stream_basic_rates;
712 u8 ofdm_ht_triple_stream_basic_rates;
714 __le16 acquisition_data;
716 } __attribute__ ((packed));
719 * REPLY_RXON_ASSOC = 0x11 (command, has simple generic response)
721 struct iwl3945_rxon_assoc_cmd {
727 } __attribute__ ((packed));
729 struct iwl4965_rxon_assoc_cmd {
734 u8 ofdm_ht_single_stream_basic_rates;
735 u8 ofdm_ht_dual_stream_basic_rates;
736 __le16 rx_chain_select_flags;
738 } __attribute__ ((packed));
740 struct iwl5000_rxon_assoc_cmd {
746 u8 ofdm_ht_single_stream_basic_rates;
747 u8 ofdm_ht_dual_stream_basic_rates;
748 u8 ofdm_ht_triple_stream_basic_rates;
750 __le16 rx_chain_select_flags;
751 __le16 acquisition_data;
753 } __attribute__ ((packed));
755 #define IWL_CONN_MAX_LISTEN_INTERVAL 10
758 * REPLY_RXON_TIMING = 0x14 (command, has simple generic response)
760 struct iwl_rxon_time_cmd {
762 __le16 beacon_interval;
764 __le32 beacon_init_val;
765 __le16 listen_interval;
767 } __attribute__ ((packed));
770 * REPLY_CHANNEL_SWITCH = 0x72 (command, has simple generic response)
772 struct iwl3945_channel_switch_cmd {
777 __le32 rxon_filter_flags;
779 struct iwl3945_power_per_rate power[IWL_MAX_RATES];
780 } __attribute__ ((packed));
782 struct iwl_channel_switch_cmd {
787 __le32 rxon_filter_flags;
789 struct iwl4965_tx_power_db tx_power;
790 } __attribute__ ((packed));
793 * CHANNEL_SWITCH_NOTIFICATION = 0x73 (notification only, not a command)
795 struct iwl_csa_notification {
798 __le32 status; /* 0 - OK, 1 - fail */
799 } __attribute__ ((packed));
801 /******************************************************************************
803 * Quality-of-Service (QOS) Commands & Responses:
805 *****************************************************************************/
808 * struct iwl_ac_qos -- QOS timing params for REPLY_QOS_PARAM
809 * One for each of 4 EDCA access categories in struct iwl_qosparam_cmd
811 * @cw_min: Contention window, start value in numbers of slots.
812 * Should be a power-of-2, minus 1. Device's default is 0x0f.
813 * @cw_max: Contention window, max value in numbers of slots.
814 * Should be a power-of-2, minus 1. Device's default is 0x3f.
815 * @aifsn: Number of slots in Arbitration Interframe Space (before
816 * performing random backoff timing prior to Tx). Device default 1.
817 * @edca_txop: Length of Tx opportunity, in uSecs. Device default is 0.
819 * Device will automatically increase contention window by (2*CW) + 1 for each
820 * transmission retry. Device uses cw_max as a bit mask, ANDed with new CW
821 * value, to cap the CW value.
829 } __attribute__ ((packed));
831 /* QoS flags defines */
832 #define QOS_PARAM_FLG_UPDATE_EDCA_MSK cpu_to_le32(0x01)
833 #define QOS_PARAM_FLG_TGN_MSK cpu_to_le32(0x02)
834 #define QOS_PARAM_FLG_TXOP_TYPE_MSK cpu_to_le32(0x10)
836 /* Number of Access Categories (AC) (EDCA), queues 0..3 */
840 * REPLY_QOS_PARAM = 0x13 (command, has simple generic response)
842 * This command sets up timings for each of the 4 prioritized EDCA Tx FIFOs
843 * 0: Background, 1: Best Effort, 2: Video, 3: Voice.
845 struct iwl_qosparam_cmd {
847 struct iwl_ac_qos ac[AC_NUM];
848 } __attribute__ ((packed));
850 /******************************************************************************
852 * Add/Modify Stations Commands & Responses:
854 *****************************************************************************/
856 * Multi station support
859 /* Special, dedicated locations within device's station table */
861 #define IWL_MULTICAST_ID 1
863 #define IWL3945_BROADCAST_ID 24
864 #define IWL3945_STATION_COUNT 25
865 #define IWL4965_BROADCAST_ID 31
866 #define IWL4965_STATION_COUNT 32
867 #define IWL5000_BROADCAST_ID 15
868 #define IWL5000_STATION_COUNT 16
870 #define IWL_STATION_COUNT 32 /* MAX(3945,4965)*/
871 #define IWL_INVALID_STATION 255
873 #define STA_FLG_TX_RATE_MSK cpu_to_le32(1 << 2);
874 #define STA_FLG_PWR_SAVE_MSK cpu_to_le32(1 << 8);
875 #define STA_FLG_PWR_SAVE_MSK cpu_to_le32(1 << 8);
876 #define STA_FLG_RTS_MIMO_PROT_MSK cpu_to_le32(1 << 17)
877 #define STA_FLG_AGG_MPDU_8US_MSK cpu_to_le32(1 << 18)
878 #define STA_FLG_MAX_AGG_SIZE_POS (19)
879 #define STA_FLG_MAX_AGG_SIZE_MSK cpu_to_le32(3 << 19)
880 #define STA_FLG_FAT_EN_MSK cpu_to_le32(1 << 21)
881 #define STA_FLG_MIMO_DIS_MSK cpu_to_le32(1 << 22)
882 #define STA_FLG_AGG_MPDU_DENSITY_POS (23)
883 #define STA_FLG_AGG_MPDU_DENSITY_MSK cpu_to_le32(7 << 23)
885 /* Use in mode field. 1: modify existing entry, 0: add new station entry */
886 #define STA_CONTROL_MODIFY_MSK 0x01
888 /* key flags __le16*/
889 #define STA_KEY_FLG_ENCRYPT_MSK cpu_to_le16(0x0007)
890 #define STA_KEY_FLG_NO_ENC cpu_to_le16(0x0000)
891 #define STA_KEY_FLG_WEP cpu_to_le16(0x0001)
892 #define STA_KEY_FLG_CCMP cpu_to_le16(0x0002)
893 #define STA_KEY_FLG_TKIP cpu_to_le16(0x0003)
895 #define STA_KEY_FLG_KEYID_POS 8
896 #define STA_KEY_FLG_INVALID cpu_to_le16(0x0800)
897 /* wep key is either from global key (0) or from station info array (1) */
898 #define STA_KEY_FLG_MAP_KEY_MSK cpu_to_le16(0x0008)
900 /* wep key in STA: 5-bytes (0) or 13-bytes (1) */
901 #define STA_KEY_FLG_KEY_SIZE_MSK cpu_to_le16(0x1000)
902 #define STA_KEY_MULTICAST_MSK cpu_to_le16(0x4000)
903 #define STA_KEY_MAX_NUM 8
905 /* Flags indicate whether to modify vs. don't change various station params */
906 #define STA_MODIFY_KEY_MASK 0x01
907 #define STA_MODIFY_TID_DISABLE_TX 0x02
908 #define STA_MODIFY_TX_RATE_MSK 0x04
909 #define STA_MODIFY_ADDBA_TID_MSK 0x08
910 #define STA_MODIFY_DELBA_TID_MSK 0x10
912 /* Receiver address (actually, Rx station's index into station table),
913 * combined with Traffic ID (QOS priority), in format used by Tx Scheduler */
914 #define BUILD_RAxTID(sta_id, tid) (((sta_id) << 4) + (tid))
916 struct iwl4965_keyinfo {
918 u8 tkip_rx_tsc_byte2; /* TSC[2] for key mix ph1 detection */
920 __le16 tkip_rx_ttak[5]; /* 10-byte unicast TKIP TTAK */
923 u8 key[16]; /* 16-byte unicast decryption key */
924 } __attribute__ ((packed));
929 u8 tkip_rx_tsc_byte2; /* TSC[2] for key mix ph1 detection */
931 __le16 tkip_rx_ttak[5]; /* 10-byte unicast TKIP TTAK */
934 u8 key[16]; /* 16-byte unicast decryption key */
935 __le64 tx_secur_seq_cnt;
936 __le64 hw_tkip_mic_rx_key;
937 __le64 hw_tkip_mic_tx_key;
938 } __attribute__ ((packed));
941 * struct sta_id_modify
942 * @addr[ETH_ALEN]: station's MAC address
943 * @sta_id: index of station in uCode's station table
944 * @modify_mask: STA_MODIFY_*, 1: modify, 0: don't change
946 * Driver selects unused table index when adding new station,
947 * or the index to a pre-existing station entry when modifying that station.
948 * Some indexes have special purposes (IWL_AP_ID, index 0, is for AP).
950 * modify_mask flags select which parameters to modify vs. leave alone.
952 struct sta_id_modify {
958 } __attribute__ ((packed));
961 * REPLY_ADD_STA = 0x18 (command)
963 * The device contains an internal table of per-station information,
964 * with info on security keys, aggregation parameters, and Tx rates for
965 * initial Tx attempt and any retries (4965 uses REPLY_TX_LINK_QUALITY_CMD,
966 * 3945 uses REPLY_RATE_SCALE to set up rate tables).
968 * REPLY_ADD_STA sets up the table entry for one station, either creating
969 * a new entry, or modifying a pre-existing one.
971 * NOTE: RXON command (without "associated" bit set) wipes the station table
972 * clean. Moving into RF_KILL state does this also. Driver must set up
973 * new station table before transmitting anything on the RXON channel
974 * (except active scans or active measurements; those commands carry
975 * their own txpower/rate setup data).
977 * When getting started on a new channel, driver must set up the
978 * IWL_BROADCAST_ID entry (last entry in the table). For a client
979 * station in a BSS, once an AP is selected, driver sets up the AP STA
980 * in the IWL_AP_ID entry (1st entry in the table). BROADCAST and AP
981 * are all that are needed for a BSS client station. If the device is
982 * used as AP, or in an IBSS network, driver must set up station table
983 * entries for all STAs in network, starting with index IWL_STA_ID.
986 struct iwl3945_addsta_cmd {
987 u8 mode; /* 1: modify existing, 0: add new station */
989 struct sta_id_modify sta;
990 struct iwl4965_keyinfo key;
991 __le32 station_flags; /* STA_FLG_* */
992 __le32 station_flags_msk; /* STA_FLG_* */
994 /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID)
995 * corresponding to bit (e.g. bit 5 controls TID 5).
996 * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */
997 __le16 tid_disable_tx;
1001 /* TID for which to add block-ack support.
1002 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
1003 u8 add_immediate_ba_tid;
1005 /* TID for which to remove block-ack support.
1006 * Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */
1007 u8 remove_immediate_ba_tid;
1009 /* Starting Sequence Number for added block-ack support.
1010 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
1011 __le16 add_immediate_ba_ssn;
1012 } __attribute__ ((packed));
1014 struct iwl4965_addsta_cmd {
1015 u8 mode; /* 1: modify existing, 0: add new station */
1017 struct sta_id_modify sta;
1018 struct iwl4965_keyinfo key;
1019 __le32 station_flags; /* STA_FLG_* */
1020 __le32 station_flags_msk; /* STA_FLG_* */
1022 /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID)
1023 * corresponding to bit (e.g. bit 5 controls TID 5).
1024 * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */
1025 __le16 tid_disable_tx;
1029 /* TID for which to add block-ack support.
1030 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
1031 u8 add_immediate_ba_tid;
1033 /* TID for which to remove block-ack support.
1034 * Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */
1035 u8 remove_immediate_ba_tid;
1037 /* Starting Sequence Number for added block-ack support.
1038 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
1039 __le16 add_immediate_ba_ssn;
1042 } __attribute__ ((packed));
1045 struct iwl_addsta_cmd {
1046 u8 mode; /* 1: modify existing, 0: add new station */
1048 struct sta_id_modify sta;
1049 struct iwl_keyinfo key;
1050 __le32 station_flags; /* STA_FLG_* */
1051 __le32 station_flags_msk; /* STA_FLG_* */
1053 /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID)
1054 * corresponding to bit (e.g. bit 5 controls TID 5).
1055 * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */
1056 __le16 tid_disable_tx;
1060 /* TID for which to add block-ack support.
1061 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
1062 u8 add_immediate_ba_tid;
1064 /* TID for which to remove block-ack support.
1065 * Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */
1066 u8 remove_immediate_ba_tid;
1068 /* Starting Sequence Number for added block-ack support.
1069 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
1070 __le16 add_immediate_ba_ssn;
1073 } __attribute__ ((packed));
1076 #define ADD_STA_SUCCESS_MSK 0x1
1077 #define ADD_STA_NO_ROOM_IN_TABLE 0x2
1078 #define ADD_STA_NO_BLOCK_ACK_RESOURCE 0x4
1079 #define ADD_STA_MODIFY_NON_EXIST_STA 0x8
1081 * REPLY_ADD_STA = 0x18 (response)
1083 struct iwl_add_sta_resp {
1084 u8 status; /* ADD_STA_* */
1085 } __attribute__ ((packed));
1087 #define REM_STA_SUCCESS_MSK 0x1
1089 * REPLY_REM_STA = 0x19 (response)
1091 struct iwl_rem_sta_resp {
1093 } __attribute__ ((packed));
1096 * REPLY_REM_STA = 0x19 (command)
1098 struct iwl_rem_sta_cmd {
1099 u8 num_sta; /* number of removed stations */
1101 u8 addr[ETH_ALEN]; /* MAC addr of the first station */
1103 } __attribute__ ((packed));
1106 * REPLY_WEP_KEY = 0x20
1108 struct iwl_wep_key {
1115 } __attribute__ ((packed));
1117 struct iwl_wep_cmd {
1122 struct iwl_wep_key key[0];
1123 } __attribute__ ((packed));
1125 #define WEP_KEY_WEP_TYPE 1
1126 #define WEP_KEYS_MAX 4
1127 #define WEP_INVALID_OFFSET 0xff
1128 #define WEP_KEY_LEN_64 5
1129 #define WEP_KEY_LEN_128 13
1131 /******************************************************************************
1135 *****************************************************************************/
1137 #define RX_RES_STATUS_NO_CRC32_ERROR cpu_to_le32(1 << 0)
1138 #define RX_RES_STATUS_NO_RXE_OVERFLOW cpu_to_le32(1 << 1)
1140 #define RX_RES_PHY_FLAGS_BAND_24_MSK cpu_to_le16(1 << 0)
1141 #define RX_RES_PHY_FLAGS_MOD_CCK_MSK cpu_to_le16(1 << 1)
1142 #define RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK cpu_to_le16(1 << 2)
1143 #define RX_RES_PHY_FLAGS_NARROW_BAND_MSK cpu_to_le16(1 << 3)
1144 #define RX_RES_PHY_FLAGS_ANTENNA_MSK cpu_to_le16(0xf0)
1146 #define RX_RES_STATUS_SEC_TYPE_MSK (0x7 << 8)
1147 #define RX_RES_STATUS_SEC_TYPE_NONE (0x0 << 8)
1148 #define RX_RES_STATUS_SEC_TYPE_WEP (0x1 << 8)
1149 #define RX_RES_STATUS_SEC_TYPE_CCMP (0x2 << 8)
1150 #define RX_RES_STATUS_SEC_TYPE_TKIP (0x3 << 8)
1151 #define RX_RES_STATUS_SEC_TYPE_ERR (0x7 << 8)
1153 #define RX_RES_STATUS_STATION_FOUND (1<<6)
1154 #define RX_RES_STATUS_NO_STATION_INFO_MISMATCH (1<<7)
1156 #define RX_RES_STATUS_DECRYPT_TYPE_MSK (0x3 << 11)
1157 #define RX_RES_STATUS_NOT_DECRYPT (0x0 << 11)
1158 #define RX_RES_STATUS_DECRYPT_OK (0x3 << 11)
1159 #define RX_RES_STATUS_BAD_ICV_MIC (0x1 << 11)
1160 #define RX_RES_STATUS_BAD_KEY_TTAK (0x2 << 11)
1162 #define RX_MPDU_RES_STATUS_ICV_OK (0x20)
1163 #define RX_MPDU_RES_STATUS_MIC_OK (0x40)
1164 #define RX_MPDU_RES_STATUS_TTAK_OK (1 << 7)
1165 #define RX_MPDU_RES_STATUS_DEC_DONE_MSK (0x800)
1168 struct iwl3945_rx_frame_stats {
1176 } __attribute__ ((packed));
1178 struct iwl3945_rx_frame_hdr {
1185 } __attribute__ ((packed));
1187 struct iwl3945_rx_frame_end {
1190 __le32 beacon_timestamp;
1191 } __attribute__ ((packed));
1194 * REPLY_3945_RX = 0x1b (response only, not a command)
1196 * NOTE: DO NOT dereference from casts to this structure
1197 * It is provided only for calculating minimum data set size.
1198 * The actual offsets of the hdr and end are dynamic based on
1201 struct iwl3945_rx_frame {
1202 struct iwl3945_rx_frame_stats stats;
1203 struct iwl3945_rx_frame_hdr hdr;
1204 struct iwl3945_rx_frame_end end;
1205 } __attribute__ ((packed));
1207 #define IWL39_RX_FRAME_SIZE (4 + sizeof(struct iwl3945_rx_frame))
1209 /* Fixed (non-configurable) rx data from phy */
1211 #define IWL49_RX_RES_PHY_CNT 14
1212 #define IWL49_RX_PHY_FLAGS_ANTENNAE_OFFSET (4)
1213 #define IWL49_RX_PHY_FLAGS_ANTENNAE_MASK (0x70)
1214 #define IWL49_AGC_DB_MASK (0x3f80) /* MASK(7,13) */
1215 #define IWL49_AGC_DB_POS (7)
1216 struct iwl4965_rx_non_cfg_phy {
1217 __le16 ant_selection; /* ant A bit 4, ant B bit 5, ant C bit 6 */
1218 __le16 agc_info; /* agc code 0:6, agc dB 7:13, reserved 14:15 */
1219 u8 rssi_info[6]; /* we use even entries, 0/2/4 for A/B/C rssi */
1221 } __attribute__ ((packed));
1224 #define IWL50_RX_RES_PHY_CNT 8
1225 #define IWL50_RX_RES_AGC_IDX 1
1226 #define IWL50_RX_RES_RSSI_AB_IDX 2
1227 #define IWL50_RX_RES_RSSI_C_IDX 3
1228 #define IWL50_OFDM_AGC_MSK 0xfe00
1229 #define IWL50_OFDM_AGC_BIT_POS 9
1230 #define IWL50_OFDM_RSSI_A_MSK 0x00ff
1231 #define IWL50_OFDM_RSSI_A_BIT_POS 0
1232 #define IWL50_OFDM_RSSI_B_MSK 0xff0000
1233 #define IWL50_OFDM_RSSI_B_BIT_POS 16
1234 #define IWL50_OFDM_RSSI_C_MSK 0x00ff
1235 #define IWL50_OFDM_RSSI_C_BIT_POS 0
1237 struct iwl5000_non_cfg_phy {
1238 __le32 non_cfg_phy[IWL50_RX_RES_PHY_CNT]; /* up to 8 phy entries */
1239 } __attribute__ ((packed));
1243 * REPLY_RX = 0xc3 (response only, not a command)
1244 * Used only for legacy (non 11n) frames.
1246 struct iwl_rx_phy_res {
1247 u8 non_cfg_phy_cnt; /* non configurable DSP phy data byte count */
1248 u8 cfg_phy_cnt; /* configurable DSP phy data byte count */
1249 u8 stat_id; /* configurable DSP phy data set ID */
1251 __le64 timestamp; /* TSF at on air rise */
1252 __le32 beacon_time_stamp; /* beacon at on-air rise */
1253 __le16 phy_flags; /* general phy flags: band, modulation, ... */
1254 __le16 channel; /* channel number */
1255 u8 non_cfg_phy_buf[32]; /* for various implementations of non_cfg_phy */
1256 __le32 rate_n_flags; /* RATE_MCS_* */
1257 __le16 byte_count; /* frame's byte-count */
1259 } __attribute__ ((packed));
1261 struct iwl4965_rx_mpdu_res_start {
1264 } __attribute__ ((packed));
1267 /******************************************************************************
1269 * Tx Commands & Responses:
1271 * Driver must place each REPLY_TX command into one of the prioritized Tx
1272 * queues in host DRAM, shared between driver and device (see comments for
1273 * SCD registers and Tx/Rx Queues). When the device's Tx scheduler and uCode
1274 * are preparing to transmit, the device pulls the Tx command over the PCI
1275 * bus via one of the device's Tx DMA channels, to fill an internal FIFO
1276 * from which data will be transmitted.
1278 * uCode handles all timing and protocol related to control frames
1279 * (RTS/CTS/ACK), based on flags in the Tx command. uCode and Tx scheduler
1280 * handle reception of block-acks; uCode updates the host driver via
1281 * REPLY_COMPRESSED_BA (4965).
1283 * uCode handles retrying Tx when an ACK is expected but not received.
1284 * This includes trying lower data rates than the one requested in the Tx
1285 * command, as set up by the REPLY_RATE_SCALE (for 3945) or
1286 * REPLY_TX_LINK_QUALITY_CMD (4965).
1288 * Driver sets up transmit power for various rates via REPLY_TX_PWR_TABLE_CMD.
1289 * This command must be executed after every RXON command, before Tx can occur.
1290 *****************************************************************************/
1292 /* REPLY_TX Tx flags field */
1294 /* 1: Use RTS/CTS protocol or CTS-to-self if spec allows it
1295 * before this frame. if CTS-to-self required check
1296 * RXON_FLG_SELF_CTS_EN status. */
1297 #define TX_CMD_FLG_RTS_CTS_MSK cpu_to_le32(1 << 0)
1299 /* 1: Use Request-To-Send protocol before this frame.
1300 * Mutually exclusive vs. TX_CMD_FLG_CTS_MSK. */
1301 #define TX_CMD_FLG_RTS_MSK cpu_to_le32(1 << 1)
1303 /* 1: Transmit Clear-To-Send to self before this frame.
1304 * Driver should set this for AUTH/DEAUTH/ASSOC-REQ/REASSOC mgmnt frames.
1305 * Mutually exclusive vs. TX_CMD_FLG_RTS_MSK. */
1306 #define TX_CMD_FLG_CTS_MSK cpu_to_le32(1 << 2)
1308 /* 1: Expect ACK from receiving station
1309 * 0: Don't expect ACK (MAC header's duration field s/b 0)
1310 * Set this for unicast frames, but not broadcast/multicast. */
1311 #define TX_CMD_FLG_ACK_MSK cpu_to_le32(1 << 3)
1314 * 1: Use rate scale table (see REPLY_TX_LINK_QUALITY_CMD).
1315 * Tx command's initial_rate_index indicates first rate to try;
1316 * uCode walks through table for additional Tx attempts.
1317 * 0: Use Tx rate/MCS from Tx command's rate_n_flags field.
1318 * This rate will be used for all Tx attempts; it will not be scaled. */
1319 #define TX_CMD_FLG_STA_RATE_MSK cpu_to_le32(1 << 4)
1321 /* 1: Expect immediate block-ack.
1322 * Set when Txing a block-ack request frame. Also set TX_CMD_FLG_ACK_MSK. */
1323 #define TX_CMD_FLG_IMM_BA_RSP_MASK cpu_to_le32(1 << 6)
1325 /* 1: Frame requires full Tx-Op protection.
1326 * Set this if either RTS or CTS Tx Flag gets set. */
1327 #define TX_CMD_FLG_FULL_TXOP_PROT_MSK cpu_to_le32(1 << 7)
1329 /* Tx antenna selection field; used only for 3945, reserved (0) for 4965.
1330 * Set field to "0" to allow 3945 uCode to select antenna (normal usage). */
1331 #define TX_CMD_FLG_ANT_SEL_MSK cpu_to_le32(0xf00)
1332 #define TX_CMD_FLG_ANT_A_MSK cpu_to_le32(1 << 8)
1333 #define TX_CMD_FLG_ANT_B_MSK cpu_to_le32(1 << 9)
1335 /* 1: Ignore Bluetooth priority for this frame.
1336 * 0: Delay Tx until Bluetooth device is done (normal usage). */
1337 #define TX_CMD_FLG_BT_DIS_MSK cpu_to_le32(1 << 12)
1339 /* 1: uCode overrides sequence control field in MAC header.
1340 * 0: Driver provides sequence control field in MAC header.
1341 * Set this for management frames, non-QOS data frames, non-unicast frames,
1342 * and also in Tx command embedded in REPLY_SCAN_CMD for active scans. */
1343 #define TX_CMD_FLG_SEQ_CTL_MSK cpu_to_le32(1 << 13)
1345 /* 1: This frame is non-last MPDU; more fragments are coming.
1346 * 0: Last fragment, or not using fragmentation. */
1347 #define TX_CMD_FLG_MORE_FRAG_MSK cpu_to_le32(1 << 14)
1349 /* 1: uCode calculates and inserts Timestamp Function (TSF) in outgoing frame.
1350 * 0: No TSF required in outgoing frame.
1351 * Set this for transmitting beacons and probe responses. */
1352 #define TX_CMD_FLG_TSF_MSK cpu_to_le32(1 << 16)
1354 /* 1: Driver inserted 2 bytes pad after the MAC header, for (required) dword
1355 * alignment of frame's payload data field.
1357 * Set this for MAC headers with 26 or 30 bytes, i.e. those with QOS or ADDR4
1358 * field (but not both). Driver must align frame data (i.e. data following
1359 * MAC header) to DWORD boundary. */
1360 #define TX_CMD_FLG_MH_PAD_MSK cpu_to_le32(1 << 20)
1362 /* accelerate aggregation support
1363 * 0 - no CCMP encryption; 1 - CCMP encryption */
1364 #define TX_CMD_FLG_AGG_CCMP_MSK cpu_to_le32(1 << 22)
1366 /* HCCA-AP - disable duration overwriting. */
1367 #define TX_CMD_FLG_DUR_MSK cpu_to_le32(1 << 25)
1371 * TX command security control
1373 #define TX_CMD_SEC_WEP 0x01
1374 #define TX_CMD_SEC_CCM 0x02
1375 #define TX_CMD_SEC_TKIP 0x03
1376 #define TX_CMD_SEC_MSK 0x03
1377 #define TX_CMD_SEC_SHIFT 6
1378 #define TX_CMD_SEC_KEY128 0x08
1381 * security overhead sizes
1383 #define WEP_IV_LEN 4
1384 #define WEP_ICV_LEN 4
1385 #define CCMP_MIC_LEN 8
1386 #define TKIP_ICV_LEN 4
1389 * REPLY_TX = 0x1c (command)
1392 struct iwl3945_tx_cmd {
1395 * MAC header (24/26/30/32 bytes) + 2 bytes pad if 26/30 header size,
1396 * + 8 byte IV for CCM or TKIP (not used for WEP)
1398 * + 8-byte MIC (not used for CCM/WEP)
1399 * NOTE: Does not include Tx command bytes, post-MAC pad bytes,
1400 * MIC (CCM) 8 bytes, ICV (WEP/TKIP/CKIP) 4 bytes, CRC 4 bytes.i
1401 * Range: 14-2342 bytes.
1406 * MPDU or MSDU byte count for next frame.
1407 * Used for fragmentation and bursting, but not 11n aggregation.
1408 * Same as "len", but for next frame. Set to 0 if not applicable.
1410 __le16 next_frame_len;
1412 __le32 tx_flags; /* TX_CMD_FLG_* */
1416 /* Index of recipient station in uCode's station table */
1426 __le32 next_frame_info;
1432 u8 rts_retry_limit; /*byte 50 */
1433 u8 data_retry_limit; /*byte 51 */
1435 __le16 pm_frame_timeout;
1436 __le16 attempt_duration;
1440 * Duration of EDCA burst Tx Opportunity, in 32-usec units.
1441 * Set this if txop time is not specified by HCCA protocol (e.g. by AP).
1446 * MAC header goes here, followed by 2 bytes padding if MAC header
1447 * length is 26 or 30 bytes, followed by payload data
1450 struct ieee80211_hdr hdr[0];
1451 } __attribute__ ((packed));
1454 * REPLY_TX = 0x1c (response)
1456 struct iwl3945_tx_resp {
1461 __le32 wireless_media_time;
1462 __le32 status; /* TX status */
1463 } __attribute__ ((packed));
1467 * 4965 uCode updates these Tx attempt count values in host DRAM.
1468 * Used for managing Tx retries when expecting block-acks.
1469 * Driver should set these fields to 0.
1471 struct iwl_dram_scratch {
1472 u8 try_cnt; /* Tx attempts */
1473 u8 bt_kill_cnt; /* Tx attempts blocked by Bluetooth device */
1475 } __attribute__ ((packed));
1480 * MAC header (24/26/30/32 bytes) + 2 bytes pad if 26/30 header size,
1481 * + 8 byte IV for CCM or TKIP (not used for WEP)
1483 * + 8-byte MIC (not used for CCM/WEP)
1484 * NOTE: Does not include Tx command bytes, post-MAC pad bytes,
1485 * MIC (CCM) 8 bytes, ICV (WEP/TKIP/CKIP) 4 bytes, CRC 4 bytes.i
1486 * Range: 14-2342 bytes.
1491 * MPDU or MSDU byte count for next frame.
1492 * Used for fragmentation and bursting, but not 11n aggregation.
1493 * Same as "len", but for next frame. Set to 0 if not applicable.
1495 __le16 next_frame_len;
1497 __le32 tx_flags; /* TX_CMD_FLG_* */
1499 /* uCode may modify this field of the Tx command (in host DRAM!).
1500 * Driver must also set dram_lsb_ptr and dram_msb_ptr in this cmd. */
1501 struct iwl_dram_scratch scratch;
1503 /* Rate for *all* Tx attempts, if TX_CMD_FLG_STA_RATE_MSK is cleared. */
1504 __le32 rate_n_flags; /* RATE_MCS_* */
1506 /* Index of destination station in uCode's station table */
1509 /* Type of security encryption: CCM or TKIP */
1510 u8 sec_ctl; /* TX_CMD_SEC_* */
1513 * Index into rate table (see REPLY_TX_LINK_QUALITY_CMD) for initial
1514 * Tx attempt, if TX_CMD_FLG_STA_RATE_MSK is set. Normally "0" for
1515 * data frames, this field may be used to selectively reduce initial
1516 * rate (via non-0 value) for special frames (e.g. management), while
1517 * still supporting rate scaling for all frames.
1519 u8 initial_rate_index;
1522 __le16 next_frame_flags;
1529 /* Host DRAM physical address pointer to "scratch" in this command.
1530 * Must be dword aligned. "0" in dram_lsb_ptr disables usage. */
1531 __le32 dram_lsb_ptr;
1534 u8 rts_retry_limit; /*byte 50 */
1535 u8 data_retry_limit; /*byte 51 */
1538 __le16 pm_frame_timeout;
1539 __le16 attempt_duration;
1543 * Duration of EDCA burst Tx Opportunity, in 32-usec units.
1544 * Set this if txop time is not specified by HCCA protocol (e.g. by AP).
1549 * MAC header goes here, followed by 2 bytes padding if MAC header
1550 * length is 26 or 30 bytes, followed by payload data
1553 struct ieee80211_hdr hdr[0];
1554 } __attribute__ ((packed));
1556 /* TX command response is sent after *all* transmission attempts.
1560 * TX_STATUS_FAIL_NEXT_FRAG
1562 * If the fragment flag in the MAC header for the frame being transmitted
1563 * is set and there is insufficient time to transmit the next frame, the
1564 * TX status will be returned with 'TX_STATUS_FAIL_NEXT_FRAG'.
1566 * TX_STATUS_FIFO_UNDERRUN
1568 * Indicates the host did not provide bytes to the FIFO fast enough while
1569 * a TX was in progress.
1571 * TX_STATUS_FAIL_MGMNT_ABORT
1573 * This status is only possible if the ABORT ON MGMT RX parameter was
1574 * set to true with the TX command.
1576 * If the MSB of the status parameter is set then an abort sequence is
1577 * required. This sequence consists of the host activating the TX Abort
1578 * control line, and then waiting for the TX Abort command response. This
1579 * indicates that a the device is no longer in a transmit state, and that the
1580 * command FIFO has been cleared. The host must then deactivate the TX Abort
1581 * control line. Receiving is still allowed in this case.
1584 TX_STATUS_SUCCESS = 0x01,
1585 TX_STATUS_DIRECT_DONE = 0x02,
1586 TX_STATUS_FAIL_SHORT_LIMIT = 0x82,
1587 TX_STATUS_FAIL_LONG_LIMIT = 0x83,
1588 TX_STATUS_FAIL_FIFO_UNDERRUN = 0x84,
1589 TX_STATUS_FAIL_MGMNT_ABORT = 0x85,
1590 TX_STATUS_FAIL_NEXT_FRAG = 0x86,
1591 TX_STATUS_FAIL_LIFE_EXPIRE = 0x87,
1592 TX_STATUS_FAIL_DEST_PS = 0x88,
1593 TX_STATUS_FAIL_ABORTED = 0x89,
1594 TX_STATUS_FAIL_BT_RETRY = 0x8a,
1595 TX_STATUS_FAIL_STA_INVALID = 0x8b,
1596 TX_STATUS_FAIL_FRAG_DROPPED = 0x8c,
1597 TX_STATUS_FAIL_TID_DISABLE = 0x8d,
1598 TX_STATUS_FAIL_FRAME_FLUSHED = 0x8e,
1599 TX_STATUS_FAIL_INSUFFICIENT_CF_POLL = 0x8f,
1600 TX_STATUS_FAIL_TX_LOCKED = 0x90,
1601 TX_STATUS_FAIL_NO_BEACON_ON_RADAR = 0x91,
1604 #define TX_PACKET_MODE_REGULAR 0x0000
1605 #define TX_PACKET_MODE_BURST_SEQ 0x0100
1606 #define TX_PACKET_MODE_BURST_FIRST 0x0200
1609 TX_POWER_PA_NOT_ACTIVE = 0x0,
1613 TX_STATUS_MSK = 0x000000ff, /* bits 0:7 */
1614 TX_STATUS_DELAY_MSK = 0x00000040,
1615 TX_STATUS_ABORT_MSK = 0x00000080,
1616 TX_PACKET_MODE_MSK = 0x0000ff00, /* bits 8:15 */
1617 TX_FIFO_NUMBER_MSK = 0x00070000, /* bits 16:18 */
1618 TX_RESERVED = 0x00780000, /* bits 19:22 */
1619 TX_POWER_PA_DETECT_MSK = 0x7f800000, /* bits 23:30 */
1620 TX_ABORT_REQUIRED_MSK = 0x80000000, /* bits 31:31 */
1623 static inline bool iwl_is_tx_success(u32 status)
1625 status &= TX_STATUS_MSK;
1626 return (status == TX_STATUS_SUCCESS) ||
1627 (status == TX_STATUS_DIRECT_DONE);
1632 /* *******************************
1633 * TX aggregation status
1634 ******************************* */
1637 AGG_TX_STATE_TRANSMITTED = 0x00,
1638 AGG_TX_STATE_UNDERRUN_MSK = 0x01,
1639 AGG_TX_STATE_BT_PRIO_MSK = 0x02,
1640 AGG_TX_STATE_FEW_BYTES_MSK = 0x04,
1641 AGG_TX_STATE_ABORT_MSK = 0x08,
1642 AGG_TX_STATE_LAST_SENT_TTL_MSK = 0x10,
1643 AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK = 0x20,
1644 AGG_TX_STATE_LAST_SENT_BT_KILL_MSK = 0x40,
1645 AGG_TX_STATE_SCD_QUERY_MSK = 0x80,
1646 AGG_TX_STATE_TEST_BAD_CRC32_MSK = 0x100,
1647 AGG_TX_STATE_RESPONSE_MSK = 0x1ff,
1648 AGG_TX_STATE_DUMP_TX_MSK = 0x200,
1649 AGG_TX_STATE_DELAY_TX_MSK = 0x400
1652 #define AGG_TX_STATE_LAST_SENT_MSK (AGG_TX_STATE_LAST_SENT_TTL_MSK | \
1653 AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK | \
1654 AGG_TX_STATE_LAST_SENT_BT_KILL_MSK)
1656 /* # tx attempts for first frame in aggregation */
1657 #define AGG_TX_STATE_TRY_CNT_POS 12
1658 #define AGG_TX_STATE_TRY_CNT_MSK 0xf000
1660 /* Command ID and sequence number of Tx command for this frame */
1661 #define AGG_TX_STATE_SEQ_NUM_POS 16
1662 #define AGG_TX_STATE_SEQ_NUM_MSK 0xffff0000
1665 * REPLY_TX = 0x1c (response)
1667 * This response may be in one of two slightly different formats, indicated
1668 * by the frame_count field:
1670 * 1) No aggregation (frame_count == 1). This reports Tx results for
1671 * a single frame. Multiple attempts, at various bit rates, may have
1672 * been made for this frame.
1674 * 2) Aggregation (frame_count > 1). This reports Tx results for
1675 * 2 or more frames that used block-acknowledge. All frames were
1676 * transmitted at same rate. Rate scaling may have been used if first
1677 * frame in this new agg block failed in previous agg block(s).
1679 * Note that, for aggregation, ACK (block-ack) status is not delivered here;
1680 * block-ack has not been received by the time the 4965 records this status.
1681 * This status relates to reasons the tx might have been blocked or aborted
1682 * within the sending station (this 4965), rather than whether it was
1683 * received successfully by the destination station.
1685 struct agg_tx_status {
1688 } __attribute__ ((packed));
1690 struct iwl4965_tx_resp {
1691 u8 frame_count; /* 1 no aggregation, >1 aggregation */
1692 u8 bt_kill_count; /* # blocked by bluetooth (unused for agg) */
1693 u8 failure_rts; /* # failures due to unsuccessful RTS */
1694 u8 failure_frame; /* # failures due to no ACK (unused for agg) */
1696 /* For non-agg: Rate at which frame was successful.
1697 * For agg: Rate at which all frames were transmitted. */
1698 __le32 rate_n_flags; /* RATE_MCS_* */
1700 /* For non-agg: RTS + CTS + frame tx attempts time + ACK.
1701 * For agg: RTS + CTS + aggregation tx time + block-ack time. */
1702 __le16 wireless_media_time; /* uSecs */
1705 __le32 pa_power1; /* RF power amplifier measurement (not used) */
1709 * For non-agg: frame status TX_STATUS_*
1710 * For agg: status of 1st frame, AGG_TX_STATE_*; other frame status
1711 * fields follow this one, up to frame_count.
1713 * 11- 0: AGG_TX_STATE_* status code
1714 * 15-12: Retry count for 1st frame in aggregation (retries
1715 * occur if tx failed for this frame when it was a
1716 * member of a previous aggregation block). If rate
1717 * scaling is used, retry count indicates the rate
1718 * table entry used for all frames in the new agg.
1719 * 31-16: Sequence # for this frame's Tx cmd (not SSN!)
1723 struct agg_tx_status agg_status[0]; /* for each agg frame */
1725 } __attribute__ ((packed));
1728 * definitions for initial rate index field
1729 * bits [3:0] initial rate index
1730 * bits [6:4] rate table color, used for the initial rate
1731 * bit-7 invalid rate indication
1732 * i.e. rate was not chosen from rate table
1733 * or rate table color was changed during frame retries
1734 * refer tlc rate info
1737 #define IWL50_TX_RES_INIT_RATE_INDEX_POS 0
1738 #define IWL50_TX_RES_INIT_RATE_INDEX_MSK 0x0f
1739 #define IWL50_TX_RES_RATE_TABLE_COLOR_POS 4
1740 #define IWL50_TX_RES_RATE_TABLE_COLOR_MSK 0x70
1741 #define IWL50_TX_RES_INV_RATE_INDEX_MSK 0x80
1743 /* refer to ra_tid */
1744 #define IWL50_TX_RES_TID_POS 0
1745 #define IWL50_TX_RES_TID_MSK 0x0f
1746 #define IWL50_TX_RES_RA_POS 4
1747 #define IWL50_TX_RES_RA_MSK 0xf0
1749 struct iwl5000_tx_resp {
1750 u8 frame_count; /* 1 no aggregation, >1 aggregation */
1751 u8 bt_kill_count; /* # blocked by bluetooth (unused for agg) */
1752 u8 failure_rts; /* # failures due to unsuccessful RTS */
1753 u8 failure_frame; /* # failures due to no ACK (unused for agg) */
1755 /* For non-agg: Rate at which frame was successful.
1756 * For agg: Rate at which all frames were transmitted. */
1757 __le32 rate_n_flags; /* RATE_MCS_* */
1759 /* For non-agg: RTS + CTS + frame tx attempts time + ACK.
1760 * For agg: RTS + CTS + aggregation tx time + block-ack time. */
1761 __le16 wireless_media_time; /* uSecs */
1763 u8 pa_status; /* RF power amplifier measurement (not used) */
1764 u8 pa_integ_res_a[3];
1765 u8 pa_integ_res_b[3];
1766 u8 pa_integ_res_C[3];
1772 u8 ra_tid; /* tid (0:3), sta_id (4:7) */
1775 * For non-agg: frame status TX_STATUS_*
1776 * For agg: status of 1st frame, AGG_TX_STATE_*; other frame status
1777 * fields follow this one, up to frame_count.
1779 * 11- 0: AGG_TX_STATE_* status code
1780 * 15-12: Retry count for 1st frame in aggregation (retries
1781 * occur if tx failed for this frame when it was a
1782 * member of a previous aggregation block). If rate
1783 * scaling is used, retry count indicates the rate
1784 * table entry used for all frames in the new agg.
1785 * 31-16: Sequence # for this frame's Tx cmd (not SSN!)
1787 struct agg_tx_status status; /* TX status (in aggregation -
1788 * status of 1st frame) */
1789 } __attribute__ ((packed));
1791 * REPLY_COMPRESSED_BA = 0xc5 (response only, not a command)
1793 * Reports Block-Acknowledge from recipient station
1795 struct iwl_compressed_ba_resp {
1796 __le32 sta_addr_lo32;
1797 __le16 sta_addr_hi16;
1800 /* Index of recipient (BA-sending) station in uCode's station table */
1807 } __attribute__ ((packed));
1810 * REPLY_TX_PWR_TABLE_CMD = 0x97 (command, has simple generic response)
1812 * See details under "TXPOWER" in iwl-4965-hw.h.
1815 struct iwl3945_txpowertable_cmd {
1816 u8 band; /* 0: 5 GHz, 1: 2.4 GHz */
1819 struct iwl3945_power_per_rate power[IWL_MAX_RATES];
1820 } __attribute__ ((packed));
1822 struct iwl4965_txpowertable_cmd {
1823 u8 band; /* 0: 5 GHz, 1: 2.4 GHz */
1826 struct iwl4965_tx_power_db tx_power;
1827 } __attribute__ ((packed));
1831 * struct iwl3945_rate_scaling_cmd - Rate Scaling Command & Response
1833 * REPLY_RATE_SCALE = 0x47 (command, has simple generic response)
1835 * NOTE: The table of rates passed to the uCode via the
1836 * RATE_SCALE command sets up the corresponding order of
1837 * rates used for all related commands, including rate
1840 * For example, if you set 9MB (PLCP 0x0f) as the first
1841 * rate in the rate table, the bit mask for that rate
1842 * when passed through ofdm_basic_rates on the REPLY_RXON
1843 * command would be bit 0 (1 << 0)
1845 struct iwl3945_rate_scaling_info {
1846 __le16 rate_n_flags;
1849 } __attribute__ ((packed));
1851 struct iwl3945_rate_scaling_cmd {
1854 struct iwl3945_rate_scaling_info table[IWL_MAX_RATES];
1855 } __attribute__ ((packed));
1858 /*RS_NEW_API: only TLC_RTS remains and moved to bit 0 */
1859 #define LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK (1 << 0)
1861 /* # of EDCA prioritized tx fifos */
1862 #define LINK_QUAL_AC_NUM AC_NUM
1864 /* # entries in rate scale table to support Tx retries */
1865 #define LINK_QUAL_MAX_RETRY_NUM 16
1867 /* Tx antenna selection values */
1868 #define LINK_QUAL_ANT_A_MSK (1 << 0)
1869 #define LINK_QUAL_ANT_B_MSK (1 << 1)
1870 #define LINK_QUAL_ANT_MSK (LINK_QUAL_ANT_A_MSK|LINK_QUAL_ANT_B_MSK)
1874 * struct iwl_link_qual_general_params
1876 * Used in REPLY_TX_LINK_QUALITY_CMD
1878 struct iwl_link_qual_general_params {
1881 /* No entries at or above this (driver chosen) index contain MIMO */
1884 /* Best single antenna to use for single stream (legacy, SISO). */
1885 u8 single_stream_ant_msk; /* LINK_QUAL_ANT_* */
1887 /* Best antennas to use for MIMO (unused for 4965, assumes both). */
1888 u8 dual_stream_ant_msk; /* LINK_QUAL_ANT_* */
1891 * If driver needs to use different initial rates for different
1892 * EDCA QOS access categories (as implemented by tx fifos 0-3),
1893 * this table will set that up, by indicating the indexes in the
1894 * rs_table[LINK_QUAL_MAX_RETRY_NUM] rate table at which to start.
1895 * Otherwise, driver should set all entries to 0.
1898 * 0 = Background, 1 = Best Effort (normal), 2 = Video, 3 = Voice
1899 * TX FIFOs above 3 use same value (typically 0) as TX FIFO 3.
1901 u8 start_rate_index[LINK_QUAL_AC_NUM];
1902 } __attribute__ ((packed));
1905 * struct iwl_link_qual_agg_params
1907 * Used in REPLY_TX_LINK_QUALITY_CMD
1909 struct iwl_link_qual_agg_params {
1911 /* Maximum number of uSec in aggregation.
1912 * Driver should set this to 4000 (4 milliseconds). */
1913 __le16 agg_time_limit;
1916 * Number of Tx retries allowed for a frame, before that frame will
1917 * no longer be considered for the start of an aggregation sequence
1918 * (scheduler will then try to tx it as single frame).
1919 * Driver should set this to 3.
1921 u8 agg_dis_start_th;
1924 * Maximum number of frames in aggregation.
1925 * 0 = no limit (default). 1 = no aggregation.
1926 * Other values = max # frames in aggregation.
1928 u8 agg_frame_cnt_limit;
1931 } __attribute__ ((packed));
1934 * REPLY_TX_LINK_QUALITY_CMD = 0x4e (command, has simple generic response)
1936 * For 4965 only; 3945 uses REPLY_RATE_SCALE.
1938 * Each station in the 4965's internal station table has its own table of 16
1939 * Tx rates and modulation modes (e.g. legacy/SISO/MIMO) for retrying Tx when
1940 * an ACK is not received. This command replaces the entire table for
1943 * NOTE: Station must already be in 4965's station table. Use REPLY_ADD_STA.
1945 * The rate scaling procedures described below work well. Of course, other
1946 * procedures are possible, and may work better for particular environments.
1949 * FILLING THE RATE TABLE
1951 * Given a particular initial rate and mode, as determined by the rate
1952 * scaling algorithm described below, the Linux driver uses the following
1953 * formula to fill the rs_table[LINK_QUAL_MAX_RETRY_NUM] rate table in the
1954 * Link Quality command:
1957 * 1) If using High-throughput (HT) (SISO or MIMO) initial rate:
1958 * a) Use this same initial rate for first 3 entries.
1959 * b) Find next lower available rate using same mode (SISO or MIMO),
1960 * use for next 3 entries. If no lower rate available, switch to
1961 * legacy mode (no FAT channel, no MIMO, no short guard interval).
1962 * c) If using MIMO, set command's mimo_delimiter to number of entries
1963 * using MIMO (3 or 6).
1964 * d) After trying 2 HT rates, switch to legacy mode (no FAT channel,
1965 * no MIMO, no short guard interval), at the next lower bit rate
1966 * (e.g. if second HT bit rate was 54, try 48 legacy), and follow
1967 * legacy procedure for remaining table entries.
1969 * 2) If using legacy initial rate:
1970 * a) Use the initial rate for only one entry.
1971 * b) For each following entry, reduce the rate to next lower available
1972 * rate, until reaching the lowest available rate.
1973 * c) When reducing rate, also switch antenna selection.
1974 * d) Once lowest available rate is reached, repeat this rate until
1975 * rate table is filled (16 entries), switching antenna each entry.
1978 * ACCUMULATING HISTORY
1980 * The rate scaling algorithm for 4965, as implemented in Linux driver, uses
1981 * two sets of frame Tx success history: One for the current/active modulation
1982 * mode, and one for a speculative/search mode that is being attempted. If the
1983 * speculative mode turns out to be more effective (i.e. actual transfer
1984 * rate is better), then the driver continues to use the speculative mode
1985 * as the new current active mode.
1987 * Each history set contains, separately for each possible rate, data for a
1988 * sliding window of the 62 most recent tx attempts at that rate. The data
1989 * includes a shifting bitmap of success(1)/failure(0), and sums of successful
1990 * and attempted frames, from which the driver can additionally calculate a
1991 * success ratio (success / attempted) and number of failures
1992 * (attempted - success), and control the size of the window (attempted).
1993 * The driver uses the bit map to remove successes from the success sum, as
1994 * the oldest tx attempts fall out of the window.
1996 * When the 4965 makes multiple tx attempts for a given frame, each attempt
1997 * might be at a different rate, and have different modulation characteristics
1998 * (e.g. antenna, fat channel, short guard interval), as set up in the rate
1999 * scaling table in the Link Quality command. The driver must determine
2000 * which rate table entry was used for each tx attempt, to determine which
2001 * rate-specific history to update, and record only those attempts that
2002 * match the modulation characteristics of the history set.
2004 * When using block-ack (aggregation), all frames are transmitted at the same
2005 * rate, since there is no per-attempt acknowledgment from the destination
2006 * station. The Tx response struct iwl_tx_resp indicates the Tx rate in
2007 * rate_n_flags field. After receiving a block-ack, the driver can update
2008 * history for the entire block all at once.
2011 * FINDING BEST STARTING RATE:
2013 * When working with a selected initial modulation mode (see below), the
2014 * driver attempts to find a best initial rate. The initial rate is the
2015 * first entry in the Link Quality command's rate table.
2017 * 1) Calculate actual throughput (success ratio * expected throughput, see
2018 * table below) for current initial rate. Do this only if enough frames
2019 * have been attempted to make the value meaningful: at least 6 failed
2020 * tx attempts, or at least 8 successes. If not enough, don't try rate
2023 * 2) Find available rates adjacent to current initial rate. Available means:
2024 * a) supported by hardware &&
2025 * b) supported by association &&
2026 * c) within any constraints selected by user
2028 * 3) Gather measured throughputs for adjacent rates. These might not have
2029 * enough history to calculate a throughput. That's okay, we might try
2030 * using one of them anyway!
2032 * 4) Try decreasing rate if, for current rate:
2033 * a) success ratio is < 15% ||
2034 * b) lower adjacent rate has better measured throughput ||
2035 * c) higher adjacent rate has worse throughput, and lower is unmeasured
2037 * As a sanity check, if decrease was determined above, leave rate
2039 * a) lower rate unavailable
2040 * b) success ratio at current rate > 85% (very good)
2041 * c) current measured throughput is better than expected throughput
2042 * of lower rate (under perfect 100% tx conditions, see table below)
2044 * 5) Try increasing rate if, for current rate:
2045 * a) success ratio is < 15% ||
2046 * b) both adjacent rates' throughputs are unmeasured (try it!) ||
2047 * b) higher adjacent rate has better measured throughput ||
2048 * c) lower adjacent rate has worse throughput, and higher is unmeasured
2050 * As a sanity check, if increase was determined above, leave rate
2052 * a) success ratio at current rate < 70%. This is not particularly
2053 * good performance; higher rate is sure to have poorer success.
2055 * 6) Re-evaluate the rate after each tx frame. If working with block-
2056 * acknowledge, history and statistics may be calculated for the entire
2057 * block (including prior history that fits within the history windows),
2058 * before re-evaluation.
2060 * FINDING BEST STARTING MODULATION MODE:
2062 * After working with a modulation mode for a "while" (and doing rate scaling),
2063 * the driver searches for a new initial mode in an attempt to improve
2064 * throughput. The "while" is measured by numbers of attempted frames:
2066 * For legacy mode, search for new mode after:
2067 * 480 successful frames, or 160 failed frames
2068 * For high-throughput modes (SISO or MIMO), search for new mode after:
2069 * 4500 successful frames, or 400 failed frames
2071 * Mode switch possibilities are (3 for each mode):
2074 * Change antenna, try SISO (if HT association), try MIMO (if HT association)
2076 * Change antenna, try MIMO, try shortened guard interval (SGI)
2078 * Try SISO antenna A, SISO antenna B, try shortened guard interval (SGI)
2080 * When trying a new mode, use the same bit rate as the old/current mode when
2081 * trying antenna switches and shortened guard interval. When switching to
2082 * SISO from MIMO or legacy, or to MIMO from SISO or legacy, use a rate
2083 * for which the expected throughput (under perfect conditions) is about the
2084 * same or slightly better than the actual measured throughput delivered by
2085 * the old/current mode.
2087 * Actual throughput can be estimated by multiplying the expected throughput
2088 * by the success ratio (successful / attempted tx frames). Frame size is
2089 * not considered in this calculation; it assumes that frame size will average
2090 * out to be fairly consistent over several samples. The following are
2091 * metric values for expected throughput assuming 100% success ratio.
2092 * Only G band has support for CCK rates:
2094 * RATE: 1 2 5 11 6 9 12 18 24 36 48 54 60
2096 * G: 7 13 35 58 40 57 72 98 121 154 177 186 186
2097 * A: 0 0 0 0 40 57 72 98 121 154 177 186 186
2098 * SISO 20MHz: 0 0 0 0 42 42 76 102 124 159 183 193 202
2099 * SGI SISO 20MHz: 0 0 0 0 46 46 82 110 132 168 192 202 211
2100 * MIMO 20MHz: 0 0 0 0 74 74 123 155 179 214 236 244 251
2101 * SGI MIMO 20MHz: 0 0 0 0 81 81 131 164 188 222 243 251 257
2102 * SISO 40MHz: 0 0 0 0 77 77 127 160 184 220 242 250 257
2103 * SGI SISO 40MHz: 0 0 0 0 83 83 135 169 193 229 250 257 264
2104 * MIMO 40MHz: 0 0 0 0 123 123 182 214 235 264 279 285 289
2105 * SGI MIMO 40MHz: 0 0 0 0 131 131 191 222 242 270 284 289 293
2107 * After the new mode has been tried for a short while (minimum of 6 failed
2108 * frames or 8 successful frames), compare success ratio and actual throughput
2109 * estimate of the new mode with the old. If either is better with the new
2110 * mode, continue to use the new mode.
2112 * Continue comparing modes until all 3 possibilities have been tried.
2113 * If moving from legacy to HT, try all 3 possibilities from the new HT
2114 * mode. After trying all 3, a best mode is found. Continue to use this mode
2115 * for the longer "while" described above (e.g. 480 successful frames for
2116 * legacy), and then repeat the search process.
2119 struct iwl_link_quality_cmd {
2121 /* Index of destination/recipient station in uCode's station table */
2124 __le16 control; /* not used */
2125 struct iwl_link_qual_general_params general_params;
2126 struct iwl_link_qual_agg_params agg_params;
2129 * Rate info; when using rate-scaling, Tx command's initial_rate_index
2130 * specifies 1st Tx rate attempted, via index into this table.
2131 * 4965 works its way through table when retrying Tx.
2134 __le32 rate_n_flags; /* RATE_MCS_*, IWL_RATE_* */
2135 } rs_table[LINK_QUAL_MAX_RETRY_NUM];
2137 } __attribute__ ((packed));
2140 * REPLY_BT_CONFIG = 0x9b (command, has simple generic response)
2142 * 3945 and 4965 support hardware handshake with Bluetooth device on
2143 * same platform. Bluetooth device alerts wireless device when it will Tx;
2144 * wireless device can delay or kill its own Tx to accommodate.
2151 __le32 kill_ack_mask;
2152 __le32 kill_cts_mask;
2153 } __attribute__ ((packed));
2155 /******************************************************************************
2157 * Spectrum Management (802.11h) Commands, Responses, Notifications:
2159 *****************************************************************************/
2162 * Spectrum Management
2164 #define MEASUREMENT_FILTER_FLAG (RXON_FILTER_PROMISC_MSK | \
2165 RXON_FILTER_CTL2HOST_MSK | \
2166 RXON_FILTER_ACCEPT_GRP_MSK | \
2167 RXON_FILTER_DIS_DECRYPT_MSK | \
2168 RXON_FILTER_DIS_GRP_DECRYPT_MSK | \
2169 RXON_FILTER_ASSOC_MSK | \
2170 RXON_FILTER_BCON_AWARE_MSK)
2172 struct iwl_measure_channel {
2173 __le32 duration; /* measurement duration in extended beacon
2175 u8 channel; /* channel to measure */
2176 u8 type; /* see enum iwl_measure_type */
2178 } __attribute__ ((packed));
2181 * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (command)
2183 struct iwl_spectrum_cmd {
2184 __le16 len; /* number of bytes starting from token */
2185 u8 token; /* token id */
2186 u8 id; /* measurement id -- 0 or 1 */
2187 u8 origin; /* 0 = TGh, 1 = other, 2 = TGk */
2188 u8 periodic; /* 1 = periodic */
2189 __le16 path_loss_timeout;
2190 __le32 start_time; /* start time in extended beacon format */
2192 __le32 flags; /* rxon flags */
2193 __le32 filter_flags; /* rxon filter flags */
2194 __le16 channel_count; /* minimum 1, maximum 10 */
2196 struct iwl_measure_channel channels[10];
2197 } __attribute__ ((packed));
2200 * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (response)
2202 struct iwl_spectrum_resp {
2204 u8 id; /* id of the prior command replaced, or 0xff */
2205 __le16 status; /* 0 - command will be handled
2206 * 1 - cannot handle (conflicts with another
2208 } __attribute__ ((packed));
2210 enum iwl_measurement_state {
2211 IWL_MEASUREMENT_START = 0,
2212 IWL_MEASUREMENT_STOP = 1,
2215 enum iwl_measurement_status {
2216 IWL_MEASUREMENT_OK = 0,
2217 IWL_MEASUREMENT_CONCURRENT = 1,
2218 IWL_MEASUREMENT_CSA_CONFLICT = 2,
2219 IWL_MEASUREMENT_TGH_CONFLICT = 3,
2221 IWL_MEASUREMENT_STOPPED = 6,
2222 IWL_MEASUREMENT_TIMEOUT = 7,
2223 IWL_MEASUREMENT_PERIODIC_FAILED = 8,
2226 #define NUM_ELEMENTS_IN_HISTOGRAM 8
2228 struct iwl_measurement_histogram {
2229 __le32 ofdm[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 0.8usec counts */
2230 __le32 cck[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 1usec counts */
2231 } __attribute__ ((packed));
2233 /* clear channel availability counters */
2234 struct iwl_measurement_cca_counters {
2237 } __attribute__ ((packed));
2239 enum iwl_measure_type {
2240 IWL_MEASURE_BASIC = (1 << 0),
2241 IWL_MEASURE_CHANNEL_LOAD = (1 << 1),
2242 IWL_MEASURE_HISTOGRAM_RPI = (1 << 2),
2243 IWL_MEASURE_HISTOGRAM_NOISE = (1 << 3),
2244 IWL_MEASURE_FRAME = (1 << 4),
2245 /* bits 5:6 are reserved */
2246 IWL_MEASURE_IDLE = (1 << 7),
2250 * SPECTRUM_MEASURE_NOTIFICATION = 0x75 (notification only, not a command)
2252 struct iwl_spectrum_notification {
2253 u8 id; /* measurement id -- 0 or 1 */
2255 u8 channel_index; /* index in measurement channel list */
2256 u8 state; /* 0 - start, 1 - stop */
2257 __le32 start_time; /* lower 32-bits of TSF */
2258 u8 band; /* 0 - 5.2GHz, 1 - 2.4GHz */
2260 u8 type; /* see enum iwl_measurement_type */
2262 /* NOTE: cca_ofdm, cca_cck, basic_type, and histogram are only only
2263 * valid if applicable for measurement type requested. */
2264 __le32 cca_ofdm; /* cca fraction time in 40Mhz clock periods */
2265 __le32 cca_cck; /* cca fraction time in 44Mhz clock periods */
2266 __le32 cca_time; /* channel load time in usecs */
2267 u8 basic_type; /* 0 - bss, 1 - ofdm preamble, 2 -
2270 struct iwl_measurement_histogram histogram;
2271 __le32 stop_time; /* lower 32-bits of TSF */
2272 __le32 status; /* see iwl_measurement_status */
2273 } __attribute__ ((packed));
2275 /******************************************************************************
2277 * Power Management Commands, Responses, Notifications:
2279 *****************************************************************************/
2282 * struct iwl_powertable_cmd - Power Table Command
2283 * @flags: See below:
2285 * POWER_TABLE_CMD = 0x77 (command, has simple generic response)
2288 * bit 0 - '0' Driver not allow power management
2289 * '1' Driver allow PM (use rest of parameters)
2290 * uCode send sleep notifications:
2291 * bit 1 - '0' Don't send sleep notification
2292 * '1' send sleep notification (SEND_PM_NOTIFICATION)
2294 * bit 2 - '0' PM have to walk up every DTIM
2295 * '1' PM could sleep over DTIM till listen Interval.
2297 * bit 3 - '0' (PCI_CFG_LINK_CTRL & 0x1)
2298 * '1' !(PCI_CFG_LINK_CTRL & 0x1)
2300 * bit 31/30- '00' use both mac/xtal sleeps
2301 * '01' force Mac sleep
2302 * '10' force xtal sleep
2305 * NOTE: if sleep_interval[SLEEP_INTRVL_TABLE_SIZE-1] > DTIM period then
2306 * ucode assume sleep over DTIM is allowed and we don't need to wake up
2309 #define IWL_POWER_VEC_SIZE 5
2311 #define IWL_POWER_DRIVER_ALLOW_SLEEP_MSK cpu_to_le16(BIT(0))
2312 #define IWL_POWER_SLEEP_OVER_DTIM_MSK cpu_to_le16(BIT(2))
2313 #define IWL_POWER_PCI_PM_MSK cpu_to_le16(BIT(3))
2314 #define IWL_POWER_FAST_PD cpu_to_le16(BIT(4))
2316 struct iwl3945_powertable_cmd {
2319 __le32 rx_data_timeout;
2320 __le32 tx_data_timeout;
2321 __le32 sleep_interval[IWL_POWER_VEC_SIZE];
2322 } __attribute__ ((packed));
2324 struct iwl_powertable_cmd {
2326 u8 keep_alive_seconds; /* 3945 reserved */
2327 u8 debug_flags; /* 3945 reserved */
2328 __le32 rx_data_timeout;
2329 __le32 tx_data_timeout;
2330 __le32 sleep_interval[IWL_POWER_VEC_SIZE];
2331 __le32 keep_alive_beacons;
2332 } __attribute__ ((packed));
2335 * PM_SLEEP_NOTIFICATION = 0x7A (notification only, not a command)
2336 * 3945 and 4965 identical.
2338 struct iwl_sleep_notification {
2345 } __attribute__ ((packed));
2347 /* Sleep states. 3945 and 4965 identical. */
2349 IWL_PM_NO_SLEEP = 0,
2351 IWL_PM_SLP_FULL_MAC_UNASSOCIATE = 2,
2352 IWL_PM_SLP_FULL_MAC_CARD_STATE = 3,
2354 IWL_PM_SLP_REPENT = 5,
2355 IWL_PM_WAKEUP_BY_TIMER = 6,
2356 IWL_PM_WAKEUP_BY_DRIVER = 7,
2357 IWL_PM_WAKEUP_BY_RFKILL = 8,
2359 IWL_PM_NUM_OF_MODES = 12,
2363 * REPLY_CARD_STATE_CMD = 0xa0 (command, has simple generic response)
2365 #define CARD_STATE_CMD_DISABLE 0x00 /* Put card to sleep */
2366 #define CARD_STATE_CMD_ENABLE 0x01 /* Wake up card */
2367 #define CARD_STATE_CMD_HALT 0x02 /* Power down permanently */
2368 struct iwl_card_state_cmd {
2369 __le32 status; /* CARD_STATE_CMD_* request new power state */
2370 } __attribute__ ((packed));
2373 * CARD_STATE_NOTIFICATION = 0xa1 (notification only, not a command)
2375 struct iwl_card_state_notif {
2377 } __attribute__ ((packed));
2379 #define HW_CARD_DISABLED 0x01
2380 #define SW_CARD_DISABLED 0x02
2381 #define RF_CARD_DISABLED 0x04
2382 #define RXON_CARD_DISABLED 0x10
2384 struct iwl_ct_kill_config {
2386 __le32 critical_temperature_M;
2387 __le32 critical_temperature_R;
2388 } __attribute__ ((packed));
2390 /******************************************************************************
2392 * Scan Commands, Responses, Notifications:
2394 *****************************************************************************/
2396 #define SCAN_CHANNEL_TYPE_PASSIVE cpu_to_le32(0)
2397 #define SCAN_CHANNEL_TYPE_ACTIVE cpu_to_le32(1)
2400 * struct iwl_scan_channel - entry in REPLY_SCAN_CMD channel table
2402 * One for each channel in the scan list.
2403 * Each channel can independently select:
2404 * 1) SSID for directed active scans
2405 * 2) Txpower setting (for rate specified within Tx command)
2406 * 3) How long to stay on-channel (behavior may be modified by quiet_time,
2407 * quiet_plcp_th, good_CRC_th)
2409 * To avoid uCode errors, make sure the following are true (see comments
2410 * under struct iwl_scan_cmd about max_out_time and quiet_time):
2411 * 1) If using passive_dwell (i.e. passive_dwell != 0):
2412 * active_dwell <= passive_dwell (< max_out_time if max_out_time != 0)
2413 * 2) quiet_time <= active_dwell
2414 * 3) If restricting off-channel time (i.e. max_out_time !=0):
2415 * passive_dwell < max_out_time
2416 * active_dwell < max_out_time
2419 /* FIXME: rename to AP1, remove tpc */
2420 struct iwl3945_scan_channel {
2422 * type is defined as:
2423 * 0:0 1 = active, 0 = passive
2424 * 1:4 SSID direct bit map; if a bit is set, then corresponding
2425 * SSID IE is transmitted in probe request.
2429 u8 channel; /* band is selected by iwl3945_scan_cmd "flags" field */
2430 struct iwl3945_tx_power tpc;
2431 __le16 active_dwell; /* in 1024-uSec TU (time units), typ 5-50 */
2432 __le16 passive_dwell; /* in 1024-uSec TU (time units), typ 20-500 */
2433 } __attribute__ ((packed));
2435 /* set number of direct probes u8 type */
2436 #define IWL39_SCAN_PROBE_MASK(n) ((BIT(n) | (BIT(n) - BIT(1))))
2438 struct iwl_scan_channel {
2440 * type is defined as:
2441 * 0:0 1 = active, 0 = passive
2442 * 1:20 SSID direct bit map; if a bit is set, then corresponding
2443 * SSID IE is transmitted in probe request.
2447 __le16 channel; /* band is selected by iwl_scan_cmd "flags" field */
2448 u8 tx_gain; /* gain for analog radio */
2449 u8 dsp_atten; /* gain for DSP */
2450 __le16 active_dwell; /* in 1024-uSec TU (time units), typ 5-50 */
2451 __le16 passive_dwell; /* in 1024-uSec TU (time units), typ 20-500 */
2452 } __attribute__ ((packed));
2454 /* set number of direct probes __le32 type */
2455 #define IWL_SCAN_PROBE_MASK(n) cpu_to_le32((BIT(n) | (BIT(n) - BIT(1))))
2458 * struct iwl_ssid_ie - directed scan network information element
2460 * Up to 4 of these may appear in REPLY_SCAN_CMD, selected by "type" field
2461 * in struct iwl_scan_channel; each channel may select different ssids from
2462 * among the 4 entries. SSID IEs get transmitted in reverse order of entry.
2464 struct iwl_ssid_ie {
2468 } __attribute__ ((packed));
2470 #define PROBE_OPTION_MAX_API1 0x4
2471 #define PROBE_OPTION_MAX 0x14
2472 #define TX_CMD_LIFE_TIME_INFINITE cpu_to_le32(0xFFFFFFFF)
2473 #define IWL_GOOD_CRC_TH cpu_to_le16(1)
2474 #define IWL_MAX_SCAN_SIZE 1024
2477 * REPLY_SCAN_CMD = 0x80 (command)
2479 * The hardware scan command is very powerful; the driver can set it up to
2480 * maintain (relatively) normal network traffic while doing a scan in the
2481 * background. The max_out_time and suspend_time control the ratio of how
2482 * long the device stays on an associated network channel ("service channel")
2483 * vs. how long it's away from the service channel, i.e. tuned to other channels
2486 * max_out_time is the max time off-channel (in usec), and suspend_time
2487 * is how long (in "extended beacon" format) that the scan is "suspended"
2488 * after returning to the service channel. That is, suspend_time is the
2489 * time that we stay on the service channel, doing normal work, between
2490 * scan segments. The driver may set these parameters differently to support
2491 * scanning when associated vs. not associated, and light vs. heavy traffic
2492 * loads when associated.
2494 * After receiving this command, the device's scan engine does the following;
2496 * 1) Sends SCAN_START notification to driver
2497 * 2) Checks to see if it has time to do scan for one channel
2498 * 3) Sends NULL packet, with power-save (PS) bit set to 1,
2499 * to tell AP that we're going off-channel
2500 * 4) Tunes to first channel in scan list, does active or passive scan
2501 * 5) Sends SCAN_RESULT notification to driver
2502 * 6) Checks to see if it has time to do scan on *next* channel in list
2503 * 7) Repeats 4-6 until it no longer has time to scan the next channel
2504 * before max_out_time expires
2505 * 8) Returns to service channel
2506 * 9) Sends NULL packet with PS=0 to tell AP that we're back
2507 * 10) Stays on service channel until suspend_time expires
2508 * 11) Repeats entire process 2-10 until list is complete
2509 * 12) Sends SCAN_COMPLETE notification
2511 * For fast, efficient scans, the scan command also has support for staying on
2512 * a channel for just a short time, if doing active scanning and getting no
2513 * responses to the transmitted probe request. This time is controlled by
2514 * quiet_time, and the number of received packets below which a channel is
2515 * considered "quiet" is controlled by quiet_plcp_threshold.
2517 * For active scanning on channels that have regulatory restrictions against
2518 * blindly transmitting, the scan can listen before transmitting, to make sure
2519 * that there is already legitimate activity on the channel. If enough
2520 * packets are cleanly received on the channel (controlled by good_CRC_th,
2521 * typical value 1), the scan engine starts transmitting probe requests.
2523 * Driver must use separate scan commands for 2.4 vs. 5 GHz bands.
2525 * To avoid uCode errors, see timing restrictions described under
2526 * struct iwl_scan_channel.
2529 struct iwl3945_scan_cmd {
2532 u8 channel_count; /* # channels in channel list */
2533 __le16 quiet_time; /* dwell only this # millisecs on quiet channel
2534 * (only for active scan) */
2535 __le16 quiet_plcp_th; /* quiet chnl is < this # pkts (typ. 1) */
2536 __le16 good_CRC_th; /* passive -> active promotion threshold */
2538 __le32 max_out_time; /* max usec to be away from associated (service)
2540 __le32 suspend_time; /* pause scan this long (in "extended beacon
2541 * format") when returning to service channel:
2542 * 3945; 31:24 # beacons, 19:0 additional usec,
2543 * 4965; 31:22 # beacons, 21:0 additional usec.
2545 __le32 flags; /* RXON_FLG_* */
2546 __le32 filter_flags; /* RXON_FILTER_* */
2548 /* For active scans (set to all-0s for passive scans).
2549 * Does not include payload. Must specify Tx rate; no rate scaling. */
2550 struct iwl3945_tx_cmd tx_cmd;
2552 /* For directed active scans (set to all-0s otherwise) */
2553 struct iwl_ssid_ie direct_scan[PROBE_OPTION_MAX_API1];
2556 * Probe request frame, followed by channel list.
2558 * Size of probe request frame is specified by byte count in tx_cmd.
2559 * Channel list follows immediately after probe request frame.
2560 * Number of channels in list is specified by channel_count.
2561 * Each channel in list is of type:
2563 * struct iwl3945_scan_channel channels[0];
2565 * NOTE: Only one band of channels can be scanned per pass. You
2566 * must not mix 2.4GHz channels and 5.2GHz channels, and you must wait
2567 * for one scan to complete (i.e. receive SCAN_COMPLETE_NOTIFICATION)
2568 * before requesting another scan.
2571 } __attribute__ ((packed));
2573 struct iwl_scan_cmd {
2576 u8 channel_count; /* # channels in channel list */
2577 __le16 quiet_time; /* dwell only this # millisecs on quiet channel
2578 * (only for active scan) */
2579 __le16 quiet_plcp_th; /* quiet chnl is < this # pkts (typ. 1) */
2580 __le16 good_CRC_th; /* passive -> active promotion threshold */
2581 __le16 rx_chain; /* RXON_RX_CHAIN_* */
2582 __le32 max_out_time; /* max usec to be away from associated (service)
2584 __le32 suspend_time; /* pause scan this long (in "extended beacon
2585 * format") when returning to service chnl:
2586 * 3945; 31:24 # beacons, 19:0 additional usec,
2587 * 4965; 31:22 # beacons, 21:0 additional usec.
2589 __le32 flags; /* RXON_FLG_* */
2590 __le32 filter_flags; /* RXON_FILTER_* */
2592 /* For active scans (set to all-0s for passive scans).
2593 * Does not include payload. Must specify Tx rate; no rate scaling. */
2594 struct iwl_tx_cmd tx_cmd;
2596 /* For directed active scans (set to all-0s otherwise) */
2597 struct iwl_ssid_ie direct_scan[PROBE_OPTION_MAX];
2600 * Probe request frame, followed by channel list.
2602 * Size of probe request frame is specified by byte count in tx_cmd.
2603 * Channel list follows immediately after probe request frame.
2604 * Number of channels in list is specified by channel_count.
2605 * Each channel in list is of type:
2607 * struct iwl_scan_channel channels[0];
2609 * NOTE: Only one band of channels can be scanned per pass. You
2610 * must not mix 2.4GHz channels and 5.2GHz channels, and you must wait
2611 * for one scan to complete (i.e. receive SCAN_COMPLETE_NOTIFICATION)
2612 * before requesting another scan.
2615 } __attribute__ ((packed));
2617 /* Can abort will notify by complete notification with abort status. */
2618 #define CAN_ABORT_STATUS cpu_to_le32(0x1)
2619 /* complete notification statuses */
2620 #define ABORT_STATUS 0x2
2623 * REPLY_SCAN_CMD = 0x80 (response)
2625 struct iwl_scanreq_notification {
2626 __le32 status; /* 1: okay, 2: cannot fulfill request */
2627 } __attribute__ ((packed));
2630 * SCAN_START_NOTIFICATION = 0x82 (notification only, not a command)
2632 struct iwl_scanstart_notification {
2635 __le32 beacon_timer;
2640 } __attribute__ ((packed));
2642 #define SCAN_OWNER_STATUS 0x1;
2643 #define MEASURE_OWNER_STATUS 0x2;
2645 #define NUMBER_OF_STATISTICS 1 /* first __le32 is good CRC */
2647 * SCAN_RESULTS_NOTIFICATION = 0x83 (notification only, not a command)
2649 struct iwl_scanresults_notification {
2655 __le32 statistics[NUMBER_OF_STATISTICS];
2656 } __attribute__ ((packed));
2659 * SCAN_COMPLETE_NOTIFICATION = 0x84 (notification only, not a command)
2661 struct iwl_scancomplete_notification {
2662 u8 scanned_channels;
2668 } __attribute__ ((packed));
2671 /******************************************************************************
2673 * IBSS/AP Commands and Notifications:
2675 *****************************************************************************/
2678 * BEACON_NOTIFICATION = 0x90 (notification only, not a command)
2681 struct iwl3945_beacon_notif {
2682 struct iwl3945_tx_resp beacon_notify_hdr;
2685 __le32 ibss_mgr_status;
2686 } __attribute__ ((packed));
2688 struct iwl4965_beacon_notif {
2689 struct iwl4965_tx_resp beacon_notify_hdr;
2692 __le32 ibss_mgr_status;
2693 } __attribute__ ((packed));
2696 * REPLY_TX_BEACON = 0x91 (command, has simple generic response)
2699 struct iwl3945_tx_beacon_cmd {
2700 struct iwl3945_tx_cmd tx;
2704 struct ieee80211_hdr frame[0]; /* beacon frame */
2705 } __attribute__ ((packed));
2707 struct iwl_tx_beacon_cmd {
2708 struct iwl_tx_cmd tx;
2712 struct ieee80211_hdr frame[0]; /* beacon frame */
2713 } __attribute__ ((packed));
2715 /******************************************************************************
2717 * Statistics Commands and Notifications:
2719 *****************************************************************************/
2721 #define IWL_TEMP_CONVERT 260
2723 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
2724 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
2725 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
2727 /* Used for passing to driver number of successes and failures per rate */
2728 struct rate_histogram {
2730 __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS];
2731 __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS];
2732 __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS];
2735 __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS];
2736 __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS];
2737 __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS];
2739 } __attribute__ ((packed));
2741 /* statistics command response */
2743 struct iwl39_statistics_rx_phy {
2749 __le32 early_overrun_err;
2751 __le32 false_alarm_cnt;
2752 __le32 fina_sync_err_cnt;
2754 __le32 fina_timeout;
2755 __le32 unresponded_rts;
2756 __le32 rxe_frame_limit_overrun;
2757 __le32 sent_ack_cnt;
2758 __le32 sent_cts_cnt;
2759 } __attribute__ ((packed));
2761 struct iwl39_statistics_rx_non_phy {
2762 __le32 bogus_cts; /* CTS received when not expecting CTS */
2763 __le32 bogus_ack; /* ACK received when not expecting ACK */
2764 __le32 non_bssid_frames; /* number of frames with BSSID that
2765 * doesn't belong to the STA BSSID */
2766 __le32 filtered_frames; /* count frames that were dumped in the
2767 * filtering process */
2768 __le32 non_channel_beacons; /* beacons with our bss id but not on
2769 * our serving channel */
2770 } __attribute__ ((packed));
2772 struct iwl39_statistics_rx {
2773 struct iwl39_statistics_rx_phy ofdm;
2774 struct iwl39_statistics_rx_phy cck;
2775 struct iwl39_statistics_rx_non_phy general;
2776 } __attribute__ ((packed));
2778 struct iwl39_statistics_tx {
2779 __le32 preamble_cnt;
2780 __le32 rx_detected_cnt;
2781 __le32 bt_prio_defer_cnt;
2782 __le32 bt_prio_kill_cnt;
2783 __le32 few_bytes_cnt;
2786 __le32 expected_ack_cnt;
2787 __le32 actual_ack_cnt;
2788 } __attribute__ ((packed));
2790 struct statistics_dbg {
2794 } __attribute__ ((packed));
2796 struct iwl39_statistics_div {
2801 } __attribute__ ((packed));
2803 struct iwl39_statistics_general {
2805 struct statistics_dbg dbg;
2809 __le32 ttl_timestamp;
2810 struct iwl39_statistics_div div;
2811 } __attribute__ ((packed));
2813 struct statistics_rx_phy {
2819 __le32 early_overrun_err;
2821 __le32 false_alarm_cnt;
2822 __le32 fina_sync_err_cnt;
2824 __le32 fina_timeout;
2825 __le32 unresponded_rts;
2826 __le32 rxe_frame_limit_overrun;
2827 __le32 sent_ack_cnt;
2828 __le32 sent_cts_cnt;
2829 __le32 sent_ba_rsp_cnt;
2830 __le32 dsp_self_kill;
2831 __le32 mh_format_err;
2832 __le32 re_acq_main_rssi_sum;
2834 } __attribute__ ((packed));
2836 struct statistics_rx_ht_phy {
2839 __le32 early_overrun_err;
2842 __le32 mh_format_err;
2843 __le32 agg_crc32_good;
2844 __le32 agg_mpdu_cnt;
2847 } __attribute__ ((packed));
2849 #define INTERFERENCE_DATA_AVAILABLE __constant_cpu_to_le32(1)
2851 struct statistics_rx_non_phy {
2852 __le32 bogus_cts; /* CTS received when not expecting CTS */
2853 __le32 bogus_ack; /* ACK received when not expecting ACK */
2854 __le32 non_bssid_frames; /* number of frames with BSSID that
2855 * doesn't belong to the STA BSSID */
2856 __le32 filtered_frames; /* count frames that were dumped in the
2857 * filtering process */
2858 __le32 non_channel_beacons; /* beacons with our bss id but not on
2859 * our serving channel */
2860 __le32 channel_beacons; /* beacons with our bss id and in our
2861 * serving channel */
2862 __le32 num_missed_bcon; /* number of missed beacons */
2863 __le32 adc_rx_saturation_time; /* count in 0.8us units the time the
2864 * ADC was in saturation */
2865 __le32 ina_detection_search_time;/* total time (in 0.8us) searched
2867 __le32 beacon_silence_rssi_a; /* RSSI silence after beacon frame */
2868 __le32 beacon_silence_rssi_b; /* RSSI silence after beacon frame */
2869 __le32 beacon_silence_rssi_c; /* RSSI silence after beacon frame */
2870 __le32 interference_data_flag; /* flag for interference data
2871 * availability. 1 when data is
2873 __le32 channel_load; /* counts RX Enable time in uSec */
2874 __le32 dsp_false_alarms; /* DSP false alarm (both OFDM
2875 * and CCK) counter */
2876 __le32 beacon_rssi_a;
2877 __le32 beacon_rssi_b;
2878 __le32 beacon_rssi_c;
2879 __le32 beacon_energy_a;
2880 __le32 beacon_energy_b;
2881 __le32 beacon_energy_c;
2882 } __attribute__ ((packed));
2884 struct statistics_rx {
2885 struct statistics_rx_phy ofdm;
2886 struct statistics_rx_phy cck;
2887 struct statistics_rx_non_phy general;
2888 struct statistics_rx_ht_phy ofdm_ht;
2889 } __attribute__ ((packed));
2891 struct statistics_tx_non_phy_agg {
2893 __le32 ba_reschedule_frames;
2894 __le32 scd_query_agg_frame_cnt;
2895 __le32 scd_query_no_agg;
2896 __le32 scd_query_agg;
2897 __le32 scd_query_mismatch;
2898 __le32 frame_not_ready;
2900 __le32 bt_prio_kill;
2901 __le32 rx_ba_rsp_cnt;
2904 } __attribute__ ((packed));
2906 struct statistics_tx {
2907 __le32 preamble_cnt;
2908 __le32 rx_detected_cnt;
2909 __le32 bt_prio_defer_cnt;
2910 __le32 bt_prio_kill_cnt;
2911 __le32 few_bytes_cnt;
2914 __le32 expected_ack_cnt;
2915 __le32 actual_ack_cnt;
2916 __le32 dump_msdu_cnt;
2917 __le32 burst_abort_next_frame_mismatch_cnt;
2918 __le32 burst_abort_missing_next_frame_cnt;
2919 __le32 cts_timeout_collision;
2920 __le32 ack_or_ba_timeout_collision;
2921 struct statistics_tx_non_phy_agg agg;
2922 } __attribute__ ((packed));
2925 struct statistics_div {
2932 } __attribute__ ((packed));
2934 struct statistics_general {
2936 __le32 temperature_m;
2937 struct statistics_dbg dbg;
2941 __le32 ttl_timestamp;
2942 struct statistics_div div;
2943 __le32 rx_enable_counter;
2947 } __attribute__ ((packed));
2950 * REPLY_STATISTICS_CMD = 0x9c,
2951 * 3945 and 4965 identical.
2953 * This command triggers an immediate response containing uCode statistics.
2954 * The response is in the same format as STATISTICS_NOTIFICATION 0x9d, below.
2956 * If the CLEAR_STATS configuration flag is set, uCode will clear its
2957 * internal copy of the statistics (counters) after issuing the response.
2958 * This flag does not affect STATISTICS_NOTIFICATIONs after beacons (see below).
2960 * If the DISABLE_NOTIF configuration flag is set, uCode will not issue
2961 * STATISTICS_NOTIFICATIONs after received beacons (see below). This flag
2962 * does not affect the response to the REPLY_STATISTICS_CMD 0x9c itself.
2964 #define IWL_STATS_CONF_CLEAR_STATS cpu_to_le32(0x1) /* see above */
2965 #define IWL_STATS_CONF_DISABLE_NOTIF cpu_to_le32(0x2)/* see above */
2966 struct iwl_statistics_cmd {
2967 __le32 configuration_flags; /* IWL_STATS_CONF_* */
2968 } __attribute__ ((packed));
2971 * STATISTICS_NOTIFICATION = 0x9d (notification only, not a command)
2973 * By default, uCode issues this notification after receiving a beacon
2974 * while associated. To disable this behavior, set DISABLE_NOTIF flag in the
2975 * REPLY_STATISTICS_CMD 0x9c, above.
2977 * Statistics counters continue to increment beacon after beacon, but are
2978 * cleared when changing channels or when driver issues REPLY_STATISTICS_CMD
2979 * 0x9c with CLEAR_STATS bit set (see above).
2981 * uCode also issues this notification during scans. uCode clears statistics
2982 * appropriately so that each notification contains statistics for only the
2983 * one channel that has just been scanned.
2985 #define STATISTICS_REPLY_FLG_BAND_24G_MSK cpu_to_le32(0x2)
2986 #define STATISTICS_REPLY_FLG_FAT_MODE_MSK cpu_to_le32(0x8)
2988 struct iwl3945_notif_statistics {
2990 struct iwl39_statistics_rx rx;
2991 struct iwl39_statistics_tx tx;
2992 struct iwl39_statistics_general general;
2993 } __attribute__ ((packed));
2995 struct iwl_notif_statistics {
2997 struct statistics_rx rx;
2998 struct statistics_tx tx;
2999 struct statistics_general general;
3000 } __attribute__ ((packed));
3004 * MISSED_BEACONS_NOTIFICATION = 0xa2 (notification only, not a command)
3006 /* if ucode missed CONSECUTIVE_MISSED_BCONS_TH beacons in a row,
3007 * then this notification will be sent. */
3008 #define CONSECUTIVE_MISSED_BCONS_TH 20
3010 struct iwl_missed_beacon_notif {
3011 __le32 consequtive_missed_beacons;
3012 __le32 total_missed_becons;
3013 __le32 num_expected_beacons;
3014 __le32 num_recvd_beacons;
3015 } __attribute__ ((packed));
3018 /******************************************************************************
3020 * Rx Calibration Commands:
3022 * With the uCode used for open source drivers, most Tx calibration (except
3023 * for Tx Power) and most Rx calibration is done by uCode during the
3024 * "initialize" phase of uCode boot. Driver must calibrate only:
3026 * 1) Tx power (depends on temperature), described elsewhere
3027 * 2) Receiver gain balance (optimize MIMO, and detect disconnected antennas)
3028 * 3) Receiver sensitivity (to optimize signal detection)
3030 *****************************************************************************/
3033 * SENSITIVITY_CMD = 0xa8 (command, has simple generic response)
3035 * This command sets up the Rx signal detector for a sensitivity level that
3036 * is high enough to lock onto all signals within the associated network,
3037 * but low enough to ignore signals that are below a certain threshold, so as
3038 * not to have too many "false alarms". False alarms are signals that the
3039 * Rx DSP tries to lock onto, but then discards after determining that they
3042 * The optimum number of false alarms is between 5 and 50 per 200 TUs
3043 * (200 * 1024 uSecs, i.e. 204.8 milliseconds) of actual Rx time (i.e.
3044 * time listening, not transmitting). Driver must adjust sensitivity so that
3045 * the ratio of actual false alarms to actual Rx time falls within this range.
3047 * While associated, uCode delivers STATISTICS_NOTIFICATIONs after each
3048 * received beacon. These provide information to the driver to analyze the
3049 * sensitivity. Don't analyze statistics that come in from scanning, or any
3050 * other non-associated-network source. Pertinent statistics include:
3052 * From "general" statistics (struct statistics_rx_non_phy):
3054 * (beacon_energy_[abc] & 0x0FF00) >> 8 (unsigned, higher value is lower level)
3055 * Measure of energy of desired signal. Used for establishing a level
3056 * below which the device does not detect signals.
3058 * (beacon_silence_rssi_[abc] & 0x0FF00) >> 8 (unsigned, units in dB)
3059 * Measure of background noise in silent period after beacon.
3062 * uSecs of actual Rx time during beacon period (varies according to
3063 * how much time was spent transmitting).
3065 * From "cck" and "ofdm" statistics (struct statistics_rx_phy), separately:
3068 * Signal locks abandoned early (before phy-level header).
3071 * Signal locks abandoned late (during phy-level header).
3073 * NOTE: Both false_alarm_cnt and plcp_err increment monotonically from
3074 * beacon to beacon, i.e. each value is an accumulation of all errors
3075 * before and including the latest beacon. Values will wrap around to 0
3076 * after counting up to 2^32 - 1. Driver must differentiate vs.
3077 * previous beacon's values to determine # false alarms in the current
3080 * Total number of false alarms = false_alarms + plcp_errs
3082 * For OFDM, adjust the following table entries in struct iwl_sensitivity_cmd
3083 * (notice that the start points for OFDM are at or close to settings for
3084 * maximum sensitivity):
3087 * HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX 90 / 85 / 120
3088 * HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX 170 / 170 / 210
3089 * HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX 105 / 105 / 140
3090 * HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX 220 / 220 / 270
3092 * If actual rate of OFDM false alarms (+ plcp_errors) is too high
3093 * (greater than 50 for each 204.8 msecs listening), reduce sensitivity
3094 * by *adding* 1 to all 4 of the table entries above, up to the max for
3095 * each entry. Conversely, if false alarm rate is too low (less than 5
3096 * for each 204.8 msecs listening), *subtract* 1 from each entry to
3097 * increase sensitivity.
3099 * For CCK sensitivity, keep track of the following:
3101 * 1). 20-beacon history of maximum background noise, indicated by
3102 * (beacon_silence_rssi_[abc] & 0x0FF00), units in dB, across the
3103 * 3 receivers. For any given beacon, the "silence reference" is
3104 * the maximum of last 60 samples (20 beacons * 3 receivers).
3106 * 2). 10-beacon history of strongest signal level, as indicated
3107 * by (beacon_energy_[abc] & 0x0FF00) >> 8, across the 3 receivers,
3108 * i.e. the strength of the signal through the best receiver at the
3109 * moment. These measurements are "upside down", with lower values
3110 * for stronger signals, so max energy will be *minimum* value.
3112 * Then for any given beacon, the driver must determine the *weakest*
3113 * of the strongest signals; this is the minimum level that needs to be
3114 * successfully detected, when using the best receiver at the moment.
3115 * "Max cck energy" is the maximum (higher value means lower energy!)
3116 * of the last 10 minima. Once this is determined, driver must add
3117 * a little margin by adding "6" to it.
3119 * 3). Number of consecutive beacon periods with too few false alarms.
3120 * Reset this to 0 at the first beacon period that falls within the
3121 * "good" range (5 to 50 false alarms per 204.8 milliseconds rx).
3123 * Then, adjust the following CCK table entries in struct iwl_sensitivity_cmd
3124 * (notice that the start points for CCK are at maximum sensitivity):
3127 * HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX 125 / 125 / 200
3128 * HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX 200 / 200 / 400
3129 * HD_MIN_ENERGY_CCK_DET_INDEX 100 / 0 / 100
3131 * If actual rate of CCK false alarms (+ plcp_errors) is too high
3132 * (greater than 50 for each 204.8 msecs listening), method for reducing
3135 * 1) *Add* 3 to value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX,
3138 * 2) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX is < 160,
3139 * sensitivity has been reduced a significant amount; bring it up to
3140 * a moderate 161. Otherwise, *add* 3, up to max 200.
3142 * 3) a) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX is > 160,
3143 * sensitivity has been reduced only a moderate or small amount;
3144 * *subtract* 2 from value in HD_MIN_ENERGY_CCK_DET_INDEX,
3145 * down to min 0. Otherwise (if gain has been significantly reduced),
3146 * don't change the HD_MIN_ENERGY_CCK_DET_INDEX value.
3148 * b) Save a snapshot of the "silence reference".
3150 * If actual rate of CCK false alarms (+ plcp_errors) is too low
3151 * (less than 5 for each 204.8 msecs listening), method for increasing
3152 * sensitivity is used only if:
3154 * 1a) Previous beacon did not have too many false alarms
3155 * 1b) AND difference between previous "silence reference" and current
3156 * "silence reference" (prev - current) is 2 or more,
3157 * OR 2) 100 or more consecutive beacon periods have had rate of
3158 * less than 5 false alarms per 204.8 milliseconds rx time.
3160 * Method for increasing sensitivity:
3162 * 1) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX,
3165 * 2) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX,
3168 * 3) *Add* 2 to value in HD_MIN_ENERGY_CCK_DET_INDEX, up to max 100.
3170 * If actual rate of CCK false alarms (+ plcp_errors) is within good range
3171 * (between 5 and 50 for each 204.8 msecs listening):
3173 * 1) Save a snapshot of the silence reference.
3175 * 2) If previous beacon had too many CCK false alarms (+ plcp_errors),
3176 * give some extra margin to energy threshold by *subtracting* 8
3177 * from value in HD_MIN_ENERGY_CCK_DET_INDEX.
3179 * For all cases (too few, too many, good range), make sure that the CCK
3180 * detection threshold (energy) is below the energy level for robust
3181 * detection over the past 10 beacon periods, the "Max cck energy".
3182 * Lower values mean higher energy; this means making sure that the value
3183 * in HD_MIN_ENERGY_CCK_DET_INDEX is at or *above* "Max cck energy".
3185 * Driver should set the following entries to fixed values:
3187 * HD_MIN_ENERGY_OFDM_DET_INDEX 100
3188 * HD_BARKER_CORR_TH_ADD_MIN_INDEX 190
3189 * HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX 390
3190 * HD_OFDM_ENERGY_TH_IN_INDEX 62
3194 * Table entries in SENSITIVITY_CMD (struct iwl_sensitivity_cmd)
3196 #define HD_TABLE_SIZE (11) /* number of entries */
3197 #define HD_MIN_ENERGY_CCK_DET_INDEX (0) /* table indexes */
3198 #define HD_MIN_ENERGY_OFDM_DET_INDEX (1)
3199 #define HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX (2)
3200 #define HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX (3)
3201 #define HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX (4)
3202 #define HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX (5)
3203 #define HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX (6)
3204 #define HD_BARKER_CORR_TH_ADD_MIN_INDEX (7)
3205 #define HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX (8)
3206 #define HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX (9)
3207 #define HD_OFDM_ENERGY_TH_IN_INDEX (10)
3209 /* Control field in struct iwl_sensitivity_cmd */
3210 #define SENSITIVITY_CMD_CONTROL_DEFAULT_TABLE cpu_to_le16(0)
3211 #define SENSITIVITY_CMD_CONTROL_WORK_TABLE cpu_to_le16(1)
3214 * struct iwl_sensitivity_cmd
3215 * @control: (1) updates working table, (0) updates default table
3216 * @table: energy threshold values, use HD_* as index into table
3218 * Always use "1" in "control" to update uCode's working table and DSP.
3220 struct iwl_sensitivity_cmd {
3221 __le16 control; /* always use "1" */
3222 __le16 table[HD_TABLE_SIZE]; /* use HD_* as index */
3223 } __attribute__ ((packed));
3227 * REPLY_PHY_CALIBRATION_CMD = 0xb0 (command, has simple generic response)
3229 * This command sets the relative gains of 4965's 3 radio receiver chains.
3231 * After the first association, driver should accumulate signal and noise
3232 * statistics from the STATISTICS_NOTIFICATIONs that follow the first 20
3233 * beacons from the associated network (don't collect statistics that come
3234 * in from scanning, or any other non-network source).
3236 * DISCONNECTED ANTENNA:
3238 * Driver should determine which antennas are actually connected, by comparing
3239 * average beacon signal levels for the 3 Rx chains. Accumulate (add) the
3240 * following values over 20 beacons, one accumulator for each of the chains
3241 * a/b/c, from struct statistics_rx_non_phy:
3243 * beacon_rssi_[abc] & 0x0FF (unsigned, units in dB)
3245 * Find the strongest signal from among a/b/c. Compare the other two to the
3246 * strongest. If any signal is more than 15 dB (times 20, unless you
3247 * divide the accumulated values by 20) below the strongest, the driver
3248 * considers that antenna to be disconnected, and should not try to use that
3249 * antenna/chain for Rx or Tx. If both A and B seem to be disconnected,
3250 * driver should declare the stronger one as connected, and attempt to use it
3251 * (A and B are the only 2 Tx chains!).
3256 * Driver should balance the 3 receivers (but just the ones that are connected
3257 * to antennas, see above) for gain, by comparing the average signal levels
3258 * detected during the silence after each beacon (background noise).
3259 * Accumulate (add) the following values over 20 beacons, one accumulator for
3260 * each of the chains a/b/c, from struct statistics_rx_non_phy:
3262 * beacon_silence_rssi_[abc] & 0x0FF (unsigned, units in dB)
3264 * Find the weakest background noise level from among a/b/c. This Rx chain
3265 * will be the reference, with 0 gain adjustment. Attenuate other channels by
3266 * finding noise difference:
3268 * (accum_noise[i] - accum_noise[reference]) / 30
3270 * The "30" adjusts the dB in the 20 accumulated samples to units of 1.5 dB.
3271 * For use in diff_gain_[abc] fields of struct iwl_calibration_cmd, the
3272 * driver should limit the difference results to a range of 0-3 (0-4.5 dB),
3273 * and set bit 2 to indicate "reduce gain". The value for the reference
3274 * (weakest) chain should be "0".
3276 * diff_gain_[abc] bit fields:
3277 * 2: (1) reduce gain, (0) increase gain
3278 * 1-0: amount of gain, units of 1.5 dB
3281 /* Phy calibration command for series */
3284 IWL_PHY_CALIBRATE_DIFF_GAIN_CMD = 7,
3285 IWL_PHY_CALIBRATE_DC_CMD = 8,
3286 IWL_PHY_CALIBRATE_LO_CMD = 9,
3287 IWL_PHY_CALIBRATE_RX_BB_CMD = 10,
3288 IWL_PHY_CALIBRATE_TX_IQ_CMD = 11,
3289 IWL_PHY_CALIBRATE_RX_IQ_CMD = 12,
3290 IWL_PHY_CALIBRATION_NOISE_CMD = 13,
3291 IWL_PHY_CALIBRATE_AGC_TABLE_CMD = 14,
3292 IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD = 15,
3293 IWL_PHY_CALIBRATE_BASE_BAND_CMD = 16,
3294 IWL_PHY_CALIBRATE_TX_IQ_PERD_CMD = 17,
3295 IWL_PHY_CALIBRATE_CHAIN_NOISE_RESET_CMD = 18,
3296 IWL_PHY_CALIBRATE_CHAIN_NOISE_GAIN_CMD = 19,
3300 #define IWL_CALIB_INIT_CFG_ALL cpu_to_le32(0xffffffff)
3302 struct iwl_calib_cfg_elmnt_s {
3308 } __attribute__ ((packed));
3310 struct iwl_calib_cfg_status_s {
3311 struct iwl_calib_cfg_elmnt_s once;
3312 struct iwl_calib_cfg_elmnt_s perd;
3314 } __attribute__ ((packed));
3316 struct iwl_calib_cfg_cmd {
3317 struct iwl_calib_cfg_status_s ucd_calib_cfg;
3318 struct iwl_calib_cfg_status_s drv_calib_cfg;
3320 } __attribute__ ((packed));
3322 struct iwl_calib_hdr {
3327 } __attribute__ ((packed));
3329 struct iwl_calib_cmd {
3330 struct iwl_calib_hdr hdr;
3332 } __attribute__ ((packed));
3334 /* IWL_PHY_CALIBRATE_DIFF_GAIN_CMD (7) */
3335 struct iwl_calib_diff_gain_cmd {
3336 struct iwl_calib_hdr hdr;
3337 s8 diff_gain_a; /* see above */
3341 } __attribute__ ((packed));
3343 struct iwl_calib_xtal_freq_cmd {
3344 struct iwl_calib_hdr hdr;
3348 } __attribute__ ((packed));
3350 /* IWL_PHY_CALIBRATE_CHAIN_NOISE_RESET_CMD */
3351 struct iwl_calib_chain_noise_reset_cmd {
3352 struct iwl_calib_hdr hdr;
3356 /* IWL_PHY_CALIBRATE_CHAIN_NOISE_GAIN_CMD */
3357 struct iwl_calib_chain_noise_gain_cmd {
3358 struct iwl_calib_hdr hdr;
3362 } __attribute__ ((packed));
3364 /******************************************************************************
3366 * Miscellaneous Commands:
3368 *****************************************************************************/
3371 * LEDs Command & Response
3372 * REPLY_LEDS_CMD = 0x48 (command, has simple generic response)
3374 * For each of 3 possible LEDs (Activity/Link/Tech, selected by "id" field),
3375 * this command turns it on or off, or sets up a periodic blinking cycle.
3377 struct iwl_led_cmd {
3378 __le32 interval; /* "interval" in uSec */
3379 u8 id; /* 1: Activity, 2: Link, 3: Tech */
3380 u8 off; /* # intervals off while blinking;
3381 * "0", with >0 "on" value, turns LED on */
3382 u8 on; /* # intervals on while blinking;
3383 * "0", regardless of "off", turns LED off */
3385 } __attribute__ ((packed));
3388 * Coexistence WIFI/WIMAX Command
3389 * COEX_PRIORITY_TABLE_CMD = 0x5a
3393 COEX_UNASSOC_IDLE = 0,
3394 COEX_UNASSOC_MANUAL_SCAN = 1,
3395 COEX_UNASSOC_AUTO_SCAN = 2,
3396 COEX_CALIBRATION = 3,
3397 COEX_PERIODIC_CALIBRATION = 4,
3398 COEX_CONNECTION_ESTAB = 5,
3399 COEX_ASSOCIATED_IDLE = 6,
3400 COEX_ASSOC_MANUAL_SCAN = 7,
3401 COEX_ASSOC_AUTO_SCAN = 8,
3402 COEX_ASSOC_ACTIVE_LEVEL = 9,
3405 COEX_STAND_ALONE_DEBUG = 12,
3406 COEX_IPAN_ASSOC_LEVEL = 13,
3409 COEX_NUM_OF_EVENTS = 16
3412 struct iwl_wimax_coex_event_entry {
3417 } __attribute__ ((packed));
3419 /* COEX flag masks */
3421 /* Station table is valid */
3422 #define COEX_FLAGS_STA_TABLE_VALID_MSK (0x1)
3423 /* UnMask wake up src at unassociated sleep */
3424 #define COEX_FLAGS_UNASSOC_WA_UNMASK_MSK (0x4)
3425 /* UnMask wake up src at associated sleep */
3426 #define COEX_FLAGS_ASSOC_WA_UNMASK_MSK (0x8)
3427 /* Enable CoEx feature. */
3428 #define COEX_FLAGS_COEX_ENABLE_MSK (0x80)
3430 struct iwl_wimax_coex_cmd {
3433 struct iwl_wimax_coex_event_entry sta_prio[COEX_NUM_OF_EVENTS];
3434 } __attribute__ ((packed));
3436 /******************************************************************************
3438 * Union of all expected notifications/responses:
3440 *****************************************************************************/
3442 struct iwl_rx_packet {
3444 struct iwl_cmd_header hdr;
3446 struct iwl3945_rx_frame rx_frame;
3447 struct iwl3945_tx_resp tx_resp;
3448 struct iwl3945_beacon_notif beacon_status;
3450 struct iwl_alive_resp alive_frame;
3451 struct iwl_spectrum_notification spectrum_notif;
3452 struct iwl_csa_notification csa_notif;
3453 struct iwl_error_resp err_resp;
3454 struct iwl_card_state_notif card_state_notif;
3455 struct iwl_add_sta_resp add_sta;
3456 struct iwl_rem_sta_resp rem_sta;
3457 struct iwl_sleep_notification sleep_notif;
3458 struct iwl_spectrum_resp spectrum;
3459 struct iwl_notif_statistics stats;
3460 struct iwl_compressed_ba_resp compressed_ba;
3461 struct iwl_missed_beacon_notif missed_beacon;
3465 } __attribute__ ((packed));
3467 int iwl_agn_check_rxon_cmd(struct iwl_priv *priv);
3469 #endif /* __iwl_commands_h__ */