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1/******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
22 * USA
23 *
24 * The full GNU General Public License is included in this distribution
25 * in the file called LICENSE.GPL.
26 *
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
30 *
31 * BSD LICENSE
32 *
33 * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 *
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
45 * distribution.
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
61 *
62 *****************************************************************************/
63
64#ifndef __il_commands_h__
65#define __il_commands_h__
66
67#include <linux/ieee80211.h>
68
69struct il_priv;
70
71/* uCode version contains 4 values: Major/Minor/API/Serial */
72#define IL_UCODE_MAJOR(ver) (((ver) & 0xFF000000) >> 24)
73#define IL_UCODE_MINOR(ver) (((ver) & 0x00FF0000) >> 16)
74#define IL_UCODE_API(ver) (((ver) & 0x0000FF00) >> 8)
75#define IL_UCODE_SERIAL(ver) ((ver) & 0x000000FF)
76
77/* Tx rates */
78#define IL_CCK_RATES 4
79#define IL_OFDM_RATES 8
80#define IL_MAX_RATES (IL_CCK_RATES + IL_OFDM_RATES)
81
82enum {
83 N_ALIVE = 0x1,
84 N_ERROR = 0x2,
85
86 /* RXON and QOS commands */
87 C_RXON = 0x10,
88 C_RXON_ASSOC = 0x11,
89 C_QOS_PARAM = 0x13,
90 C_RXON_TIMING = 0x14,
91
92 /* Multi-Station support */
93 C_ADD_STA = 0x18,
94 C_REM_STA = 0x19,
95
96 /* Security */
97 C_WEPKEY = 0x20,
98
99 /* RX, TX, LEDs */
100 N_3945_RX = 0x1b, /* 3945 only */
101 C_TX = 0x1c,
102 C_RATE_SCALE = 0x47, /* 3945 only */
103 C_LEDS = 0x48,
104 C_TX_LINK_QUALITY_CMD = 0x4e, /* for 4965 */
105
106 /* 802.11h related */
107 C_CHANNEL_SWITCH = 0x72,
108 N_CHANNEL_SWITCH = 0x73,
109 C_SPECTRUM_MEASUREMENT = 0x74,
110 N_SPECTRUM_MEASUREMENT = 0x75,
111
112 /* Power Management */
113 C_POWER_TBL = 0x77,
114 N_PM_SLEEP = 0x7A,
115 N_PM_DEBUG_STATS = 0x7B,
116
117 /* Scan commands and notifications */
118 C_SCAN = 0x80,
119 C_SCAN_ABORT = 0x81,
120 N_SCAN_START = 0x82,
121 N_SCAN_RESULTS = 0x83,
122 N_SCAN_COMPLETE = 0x84,
123
124 /* IBSS/AP commands */
125 N_BEACON = 0x90,
126 C_TX_BEACON = 0x91,
127
128 /* Miscellaneous commands */
129 C_TX_PWR_TBL = 0x97,
130
131 /* Bluetooth device coexistence config command */
132 C_BT_CONFIG = 0x9b,
133
134 /* Statistics */
135 C_STATS = 0x9c,
136 N_STATS = 0x9d,
137
138 /* RF-KILL commands and notifications */
139 N_CARD_STATE = 0xa1,
140
141 /* Missed beacons notification */
142 N_MISSED_BEACONS = 0xa2,
143
144 C_CT_KILL_CONFIG = 0xa4,
145 C_SENSITIVITY = 0xa8,
146 C_PHY_CALIBRATION = 0xb0,
147 N_RX_PHY = 0xc0,
148 N_RX_MPDU = 0xc1,
149 N_RX = 0xc3,
150 N_COMPRESSED_BA = 0xc5,
151
152 IL_CN_MAX = 0xff
153};
154
155/******************************************************************************
156 * (0)
157 * Commonly used structures and definitions:
158 * Command header, rate_n_flags, txpower
159 *
160 *****************************************************************************/
161
162/* il_cmd_header flags value */
163#define IL_CMD_FAILED_MSK 0x40
164
165#define SEQ_TO_QUEUE(s) (((s) >> 8) & 0x1f)
166#define QUEUE_TO_SEQ(q) (((q) & 0x1f) << 8)
167#define SEQ_TO_IDX(s) ((s) & 0xff)
168#define IDX_TO_SEQ(i) ((i) & 0xff)
169#define SEQ_HUGE_FRAME cpu_to_le16(0x4000)
170#define SEQ_RX_FRAME cpu_to_le16(0x8000)
171
172/**
173 * struct il_cmd_header
174 *
175 * This header format appears in the beginning of each command sent from the
176 * driver, and each response/notification received from uCode.
177 */
178struct il_cmd_header {
179 u8 cmd; /* Command ID: C_RXON, etc. */
180 u8 flags; /* 0:5 reserved, 6 abort, 7 internal */
181 /*
182 * The driver sets up the sequence number to values of its choosing.
183 * uCode does not use this value, but passes it back to the driver
184 * when sending the response to each driver-originated command, so
185 * the driver can match the response to the command. Since the values
186 * don't get used by uCode, the driver may set up an arbitrary format.
187 *
188 * There is one exception: uCode sets bit 15 when it originates
189 * the response/notification, i.e. when the response/notification
190 * is not a direct response to a command sent by the driver. For
191 * example, uCode issues N_3945_RX when it sends a received frame
192 * to the driver; it is not a direct response to any driver command.
193 *
194 * The Linux driver uses the following format:
195 *
196 * 0:7 tfd idx - position within TX queue
197 * 8:12 TX queue id
198 * 13 reserved
199 * 14 huge - driver sets this to indicate command is in the
200 * 'huge' storage at the end of the command buffers
201 * 15 unsolicited RX or uCode-originated notification
202 */
203 __le16 sequence;
204
205 /* command or response/notification data follows immediately */
206 u8 data[0];
207} __packed;
208
209/**
210 * struct il3945_tx_power
211 *
212 * Used in C_TX_PWR_TBL, C_SCAN, C_CHANNEL_SWITCH
213 *
214 * Each entry contains two values:
215 * 1) DSP gain (or sometimes called DSP attenuation). This is a fine-grained
216 * linear value that multiplies the output of the digital signal processor,
217 * before being sent to the analog radio.
218 * 2) Radio gain. This sets the analog gain of the radio Tx path.
219 * It is a coarser setting, and behaves in a logarithmic (dB) fashion.
220 *
221 * Driver obtains values from struct il3945_tx_power power_gain_table[][].
222 */
223struct il3945_tx_power {
224 u8 tx_gain; /* gain for analog radio */
225 u8 dsp_atten; /* gain for DSP */
226} __packed;
227
228/**
229 * struct il3945_power_per_rate
230 *
231 * Used in C_TX_PWR_TBL, C_CHANNEL_SWITCH
232 */
233struct il3945_power_per_rate {
234 u8 rate; /* plcp */
235 struct il3945_tx_power tpc;
236 u8 reserved;
237} __packed;
238
239/**
240 * iwl4965 rate_n_flags bit fields
241 *
242 * rate_n_flags format is used in following iwl4965 commands:
243 * N_RX (response only)
244 * N_RX_MPDU (response only)
245 * C_TX (both command and response)
246 * C_TX_LINK_QUALITY_CMD
247 *
248 * High-throughput (HT) rate format for bits 7:0 (bit 8 must be "1"):
249 * 2-0: 0) 6 Mbps
250 * 1) 12 Mbps
251 * 2) 18 Mbps
252 * 3) 24 Mbps
253 * 4) 36 Mbps
254 * 5) 48 Mbps
255 * 6) 54 Mbps
256 * 7) 60 Mbps
257 *
258 * 4-3: 0) Single stream (SISO)
259 * 1) Dual stream (MIMO)
260 * 2) Triple stream (MIMO)
261 *
262 * 5: Value of 0x20 in bits 7:0 indicates 6 Mbps HT40 duplicate data
263 *
264 * Legacy OFDM rate format for bits 7:0 (bit 8 must be "0", bit 9 "0"):
265 * 3-0: 0xD) 6 Mbps
266 * 0xF) 9 Mbps
267 * 0x5) 12 Mbps
268 * 0x7) 18 Mbps
269 * 0x9) 24 Mbps
270 * 0xB) 36 Mbps
271 * 0x1) 48 Mbps
272 * 0x3) 54 Mbps
273 *
274 * Legacy CCK rate format for bits 7:0 (bit 8 must be "0", bit 9 "1"):
275 * 6-0: 10) 1 Mbps
276 * 20) 2 Mbps
277 * 55) 5.5 Mbps
278 * 110) 11 Mbps
279 */
280#define RATE_MCS_CODE_MSK 0x7
281#define RATE_MCS_SPATIAL_POS 3
282#define RATE_MCS_SPATIAL_MSK 0x18
283#define RATE_MCS_HT_DUP_POS 5
284#define RATE_MCS_HT_DUP_MSK 0x20
285
286/* Bit 8: (1) HT format, (0) legacy format in bits 7:0 */
287#define RATE_MCS_FLAGS_POS 8
288#define RATE_MCS_HT_POS 8
289#define RATE_MCS_HT_MSK 0x100
290
291/* Bit 9: (1) CCK, (0) OFDM. HT (bit 8) must be "0" for this bit to be valid */
292#define RATE_MCS_CCK_POS 9
293#define RATE_MCS_CCK_MSK 0x200
294
295/* Bit 10: (1) Use Green Field preamble */
296#define RATE_MCS_GF_POS 10
297#define RATE_MCS_GF_MSK 0x400
298
299/* Bit 11: (1) Use 40Mhz HT40 chnl width, (0) use 20 MHz legacy chnl width */
300#define RATE_MCS_HT40_POS 11
301#define RATE_MCS_HT40_MSK 0x800
302
303/* Bit 12: (1) Duplicate data on both 20MHz chnls. HT40 (bit 11) must be set. */
304#define RATE_MCS_DUP_POS 12
305#define RATE_MCS_DUP_MSK 0x1000
306
307/* Bit 13: (1) Short guard interval (0.4 usec), (0) normal GI (0.8 usec) */
308#define RATE_MCS_SGI_POS 13
309#define RATE_MCS_SGI_MSK 0x2000
310
311/**
312 * rate_n_flags Tx antenna masks
313 * 4965 has 2 transmitters
314 * bit14:16
315 */
316#define RATE_MCS_ANT_POS 14
317#define RATE_MCS_ANT_A_MSK 0x04000
318#define RATE_MCS_ANT_B_MSK 0x08000
319#define RATE_MCS_ANT_C_MSK 0x10000
320#define RATE_MCS_ANT_AB_MSK (RATE_MCS_ANT_A_MSK | RATE_MCS_ANT_B_MSK)
321#define RATE_MCS_ANT_ABC_MSK (RATE_MCS_ANT_AB_MSK | RATE_MCS_ANT_C_MSK)
322#define RATE_ANT_NUM 3
323
324#define POWER_TBL_NUM_ENTRIES 33
325#define POWER_TBL_NUM_HT_OFDM_ENTRIES 32
326#define POWER_TBL_CCK_ENTRY 32
327
328#define IL_PWR_NUM_HT_OFDM_ENTRIES 24
329#define IL_PWR_CCK_ENTRIES 2
330
331/**
332 * union il4965_tx_power_dual_stream
333 *
334 * Host format used for C_TX_PWR_TBL, C_CHANNEL_SWITCH
335 * Use __le32 version (struct tx_power_dual_stream) when building command.
336 *
337 * Driver provides radio gain and DSP attenuation settings to device in pairs,
338 * one value for each transmitter chain. The first value is for transmitter A,
339 * second for transmitter B.
340 *
341 * For SISO bit rates, both values in a pair should be identical.
342 * For MIMO rates, one value may be different from the other,
343 * in order to balance the Tx output between the two transmitters.
344 *
345 * See more details in doc for TXPOWER in 4965.h.
346 */
347union il4965_tx_power_dual_stream {
348 struct {
349 u8 radio_tx_gain[2];
350 u8 dsp_predis_atten[2];
351 } s;
352 u32 dw;
353};
354
355/**
356 * struct tx_power_dual_stream
357 *
358 * Table entries in C_TX_PWR_TBL, C_CHANNEL_SWITCH
359 *
360 * Same format as il_tx_power_dual_stream, but __le32
361 */
362struct tx_power_dual_stream {
363 __le32 dw;
364} __packed;
365
366/**
367 * struct il4965_tx_power_db
368 *
369 * Entire table within C_TX_PWR_TBL, C_CHANNEL_SWITCH
370 */
371struct il4965_tx_power_db {
372 struct tx_power_dual_stream power_tbl[POWER_TBL_NUM_ENTRIES];
373} __packed;
374
375/******************************************************************************
376 * (0a)
377 * Alive and Error Commands & Responses:
378 *
379 *****************************************************************************/
380
381#define UCODE_VALID_OK cpu_to_le32(0x1)
382#define INITIALIZE_SUBTYPE (9)
383
384/*
385 * ("Initialize") N_ALIVE = 0x1 (response only, not a command)
386 *
387 * uCode issues this "initialize alive" notification once the initialization
388 * uCode image has completed its work, and is ready to load the runtime image.
389 * This is the *first* "alive" notification that the driver will receive after
390 * rebooting uCode; the "initialize" alive is indicated by subtype field == 9.
391 *
392 * See comments documenting "BSM" (bootstrap state machine).
393 *
394 * For 4965, this notification contains important calibration data for
395 * calculating txpower settings:
396 *
397 * 1) Power supply voltage indication. The voltage sensor outputs higher
398 * values for lower voltage, and vice verse.
399 *
400 * 2) Temperature measurement parameters, for each of two channel widths
401 * (20 MHz and 40 MHz) supported by the radios. Temperature sensing
402 * is done via one of the receiver chains, and channel width influences
403 * the results.
404 *
405 * 3) Tx gain compensation to balance 4965's 2 Tx chains for MIMO operation,
406 * for each of 5 frequency ranges.
407 */
408struct il_init_alive_resp {
409 u8 ucode_minor;
410 u8 ucode_major;
411 __le16 reserved1;
412 u8 sw_rev[8];
413 u8 ver_type;
414 u8 ver_subtype; /* "9" for initialize alive */
415 __le16 reserved2;
416 __le32 log_event_table_ptr;
417 __le32 error_event_table_ptr;
418 __le32 timestamp;
419 __le32 is_valid;
420
421 /* calibration values from "initialize" uCode */
422 __le32 voltage; /* signed, higher value is lower voltage */
423 __le32 therm_r1[2]; /* signed, 1st for normal, 2nd for HT40 */
424 __le32 therm_r2[2]; /* signed */
425 __le32 therm_r3[2]; /* signed */
426 __le32 therm_r4[2]; /* signed */
427 __le32 tx_atten[5][2]; /* signed MIMO gain comp, 5 freq groups,
428 * 2 Tx chains */
429} __packed;
430
431/**
432 * N_ALIVE = 0x1 (response only, not a command)
433 *
434 * uCode issues this "alive" notification once the runtime image is ready
435 * to receive commands from the driver. This is the *second* "alive"
436 * notification that the driver will receive after rebooting uCode;
437 * this "alive" is indicated by subtype field != 9.
438 *
439 * See comments documenting "BSM" (bootstrap state machine).
440 *
441 * This response includes two pointers to structures within the device's
442 * data SRAM (access via HBUS_TARG_MEM_* regs) that are useful for debugging:
443 *
444 * 1) log_event_table_ptr indicates base of the event log. This traces
445 * a 256-entry history of uCode execution within a circular buffer.
446 * Its header format is:
447 *
448 * __le32 log_size; log capacity (in number of entries)
449 * __le32 type; (1) timestamp with each entry, (0) no timestamp
450 * __le32 wraps; # times uCode has wrapped to top of circular buffer
451 * __le32 write_idx; next circular buffer entry that uCode would fill
452 *
453 * The header is followed by the circular buffer of log entries. Entries
454 * with timestamps have the following format:
455 *
456 * __le32 event_id; range 0 - 1500
457 * __le32 timestamp; low 32 bits of TSF (of network, if associated)
458 * __le32 data; event_id-specific data value
459 *
460 * Entries without timestamps contain only event_id and data.
461 *
462 *
463 * 2) error_event_table_ptr indicates base of the error log. This contains
464 * information about any uCode error that occurs. For 4965, the format
465 * of the error log is:
466 *
467 * __le32 valid; (nonzero) valid, (0) log is empty
468 * __le32 error_id; type of error
469 * __le32 pc; program counter
470 * __le32 blink1; branch link
471 * __le32 blink2; branch link
472 * __le32 ilink1; interrupt link
473 * __le32 ilink2; interrupt link
474 * __le32 data1; error-specific data
475 * __le32 data2; error-specific data
476 * __le32 line; source code line of error
477 * __le32 bcon_time; beacon timer
478 * __le32 tsf_low; network timestamp function timer
479 * __le32 tsf_hi; network timestamp function timer
480 * __le32 gp1; GP1 timer register
481 * __le32 gp2; GP2 timer register
482 * __le32 gp3; GP3 timer register
483 * __le32 ucode_ver; uCode version
484 * __le32 hw_ver; HW Silicon version
485 * __le32 brd_ver; HW board version
486 * __le32 log_pc; log program counter
487 * __le32 frame_ptr; frame pointer
488 * __le32 stack_ptr; stack pointer
489 * __le32 hcmd; last host command
490 * __le32 isr0; isr status register LMPM_NIC_ISR0: rxtx_flag
491 * __le32 isr1; isr status register LMPM_NIC_ISR1: host_flag
492 * __le32 isr2; isr status register LMPM_NIC_ISR2: enc_flag
493 * __le32 isr3; isr status register LMPM_NIC_ISR3: time_flag
494 * __le32 isr4; isr status register LMPM_NIC_ISR4: wico interrupt
495 * __le32 isr_pref; isr status register LMPM_NIC_PREF_STAT
496 * __le32 wait_event; wait event() caller address
497 * __le32 l2p_control; L2pControlField
498 * __le32 l2p_duration; L2pDurationField
499 * __le32 l2p_mhvalid; L2pMhValidBits
500 * __le32 l2p_addr_match; L2pAddrMatchStat
501 * __le32 lmpm_pmg_sel; indicate which clocks are turned on (LMPM_PMG_SEL)
502 * __le32 u_timestamp; indicate when the date and time of the compilation
503 * __le32 reserved;
504 *
505 * The Linux driver can print both logs to the system log when a uCode error
506 * occurs.
507 */
508struct il_alive_resp {
509 u8 ucode_minor;
510 u8 ucode_major;
511 __le16 reserved1;
512 u8 sw_rev[8];
513 u8 ver_type;
514 u8 ver_subtype; /* not "9" for runtime alive */
515 __le16 reserved2;
516 __le32 log_event_table_ptr; /* SRAM address for event log */
517 __le32 error_event_table_ptr; /* SRAM address for error log */
518 __le32 timestamp;
519 __le32 is_valid;
520} __packed;
521
522/*
523 * N_ERROR = 0x2 (response only, not a command)
524 */
525struct il_error_resp {
526 __le32 error_type;
527 u8 cmd_id;
528 u8 reserved1;
529 __le16 bad_cmd_seq_num;
530 __le32 error_info;
531 __le64 timestamp;
532} __packed;
533
534/******************************************************************************
535 * (1)
536 * RXON Commands & Responses:
537 *
538 *****************************************************************************/
539
540/*
541 * Rx config defines & structure
542 */
543/* rx_config device types */
544enum {
545 RXON_DEV_TYPE_AP = 1,
546 RXON_DEV_TYPE_ESS = 3,
547 RXON_DEV_TYPE_IBSS = 4,
548 RXON_DEV_TYPE_SNIFFER = 6,
549};
550
551#define RXON_RX_CHAIN_DRIVER_FORCE_MSK cpu_to_le16(0x1 << 0)
552#define RXON_RX_CHAIN_DRIVER_FORCE_POS (0)
553#define RXON_RX_CHAIN_VALID_MSK cpu_to_le16(0x7 << 1)
554#define RXON_RX_CHAIN_VALID_POS (1)
555#define RXON_RX_CHAIN_FORCE_SEL_MSK cpu_to_le16(0x7 << 4)
556#define RXON_RX_CHAIN_FORCE_SEL_POS (4)
557#define RXON_RX_CHAIN_FORCE_MIMO_SEL_MSK cpu_to_le16(0x7 << 7)
558#define RXON_RX_CHAIN_FORCE_MIMO_SEL_POS (7)
559#define RXON_RX_CHAIN_CNT_MSK cpu_to_le16(0x3 << 10)
560#define RXON_RX_CHAIN_CNT_POS (10)
561#define RXON_RX_CHAIN_MIMO_CNT_MSK cpu_to_le16(0x3 << 12)
562#define RXON_RX_CHAIN_MIMO_CNT_POS (12)
563#define RXON_RX_CHAIN_MIMO_FORCE_MSK cpu_to_le16(0x1 << 14)
564#define RXON_RX_CHAIN_MIMO_FORCE_POS (14)
565
566/* rx_config flags */
567/* band & modulation selection */
568#define RXON_FLG_BAND_24G_MSK cpu_to_le32(1 << 0)
569#define RXON_FLG_CCK_MSK cpu_to_le32(1 << 1)
570/* auto detection enable */
571#define RXON_FLG_AUTO_DETECT_MSK cpu_to_le32(1 << 2)
572/* TGg protection when tx */
573#define RXON_FLG_TGG_PROTECT_MSK cpu_to_le32(1 << 3)
574/* cck short slot & preamble */
575#define RXON_FLG_SHORT_SLOT_MSK cpu_to_le32(1 << 4)
576#define RXON_FLG_SHORT_PREAMBLE_MSK cpu_to_le32(1 << 5)
577/* antenna selection */
578#define RXON_FLG_DIS_DIV_MSK cpu_to_le32(1 << 7)
579#define RXON_FLG_ANT_SEL_MSK cpu_to_le32(0x0f00)
580#define RXON_FLG_ANT_A_MSK cpu_to_le32(1 << 8)
581#define RXON_FLG_ANT_B_MSK cpu_to_le32(1 << 9)
582/* radar detection enable */
583#define RXON_FLG_RADAR_DETECT_MSK cpu_to_le32(1 << 12)
584#define RXON_FLG_TGJ_NARROW_BAND_MSK cpu_to_le32(1 << 13)
585/* rx response to host with 8-byte TSF
586* (according to ON_AIR deassertion) */
587#define RXON_FLG_TSF2HOST_MSK cpu_to_le32(1 << 15)
588
589/* HT flags */
590#define RXON_FLG_CTRL_CHANNEL_LOC_POS (22)
591#define RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK cpu_to_le32(0x1 << 22)
592
593#define RXON_FLG_HT_OPERATING_MODE_POS (23)
594
595#define RXON_FLG_HT_PROT_MSK cpu_to_le32(0x1 << 23)
596#define RXON_FLG_HT40_PROT_MSK cpu_to_le32(0x2 << 23)
597
598#define RXON_FLG_CHANNEL_MODE_POS (25)
599#define RXON_FLG_CHANNEL_MODE_MSK cpu_to_le32(0x3 << 25)
600
601/* channel mode */
602enum {
603 CHANNEL_MODE_LEGACY = 0,
604 CHANNEL_MODE_PURE_40 = 1,
605 CHANNEL_MODE_MIXED = 2,
606 CHANNEL_MODE_RESERVED = 3,
607};
608#define RXON_FLG_CHANNEL_MODE_LEGACY \
609 cpu_to_le32(CHANNEL_MODE_LEGACY << RXON_FLG_CHANNEL_MODE_POS)
610#define RXON_FLG_CHANNEL_MODE_PURE_40 \
611 cpu_to_le32(CHANNEL_MODE_PURE_40 << RXON_FLG_CHANNEL_MODE_POS)
612#define RXON_FLG_CHANNEL_MODE_MIXED \
613 cpu_to_le32(CHANNEL_MODE_MIXED << RXON_FLG_CHANNEL_MODE_POS)
614
615/* CTS to self (if spec allows) flag */
616#define RXON_FLG_SELF_CTS_EN cpu_to_le32(0x1<<30)
617
618/* rx_config filter flags */
619/* accept all data frames */
620#define RXON_FILTER_PROMISC_MSK cpu_to_le32(1 << 0)
621/* pass control & management to host */
622#define RXON_FILTER_CTL2HOST_MSK cpu_to_le32(1 << 1)
623/* accept multi-cast */
624#define RXON_FILTER_ACCEPT_GRP_MSK cpu_to_le32(1 << 2)
625/* don't decrypt uni-cast frames */
626#define RXON_FILTER_DIS_DECRYPT_MSK cpu_to_le32(1 << 3)
627/* don't decrypt multi-cast frames */
628#define RXON_FILTER_DIS_GRP_DECRYPT_MSK cpu_to_le32(1 << 4)
629/* STA is associated */
630#define RXON_FILTER_ASSOC_MSK cpu_to_le32(1 << 5)
631/* transfer to host non bssid beacons in associated state */
632#define RXON_FILTER_BCON_AWARE_MSK cpu_to_le32(1 << 6)
633
634/**
635 * C_RXON = 0x10 (command, has simple generic response)
636 *
637 * RXON tunes the radio tuner to a service channel, and sets up a number
638 * of parameters that are used primarily for Rx, but also for Tx operations.
639 *
640 * NOTE: When tuning to a new channel, driver must set the
641 * RXON_FILTER_ASSOC_MSK to 0. This will clear station-dependent
642 * info within the device, including the station tables, tx retry
643 * rate tables, and txpower tables. Driver must build a new station
644 * table and txpower table before transmitting anything on the RXON
645 * channel.
646 *
647 * NOTE: All RXONs wipe clean the internal txpower table. Driver must
648 * issue a new C_TX_PWR_TBL after each C_RXON (0x10),
649 * regardless of whether RXON_FILTER_ASSOC_MSK is set.
650 */
651
652struct il3945_rxon_cmd {
653 u8 node_addr[6];
654 __le16 reserved1;
655 u8 bssid_addr[6];
656 __le16 reserved2;
657 u8 wlap_bssid_addr[6];
658 __le16 reserved3;
659 u8 dev_type;
660 u8 air_propagation;
661 __le16 reserved4;
662 u8 ofdm_basic_rates;
663 u8 cck_basic_rates;
664 __le16 assoc_id;
665 __le32 flags;
666 __le32 filter_flags;
667 __le16 channel;
668 __le16 reserved5;
669} __packed;
670
671struct il4965_rxon_cmd {
672 u8 node_addr[6];
673 __le16 reserved1;
674 u8 bssid_addr[6];
675 __le16 reserved2;
676 u8 wlap_bssid_addr[6];
677 __le16 reserved3;
678 u8 dev_type;
679 u8 air_propagation;
680 __le16 rx_chain;
681 u8 ofdm_basic_rates;
682 u8 cck_basic_rates;
683 __le16 assoc_id;
684 __le32 flags;
685 __le32 filter_flags;
686 __le16 channel;
687 u8 ofdm_ht_single_stream_basic_rates;
688 u8 ofdm_ht_dual_stream_basic_rates;
689} __packed;
690
691/* Create a common rxon cmd which will be typecast into the 3945 or 4965
692 * specific rxon cmd, depending on where it is called from.
693 */
694struct il_rxon_cmd {
695 u8 node_addr[6];
696 __le16 reserved1;
697 u8 bssid_addr[6];
698 __le16 reserved2;
699 u8 wlap_bssid_addr[6];
700 __le16 reserved3;
701 u8 dev_type;
702 u8 air_propagation;
703 __le16 rx_chain;
704 u8 ofdm_basic_rates;
705 u8 cck_basic_rates;
706 __le16 assoc_id;
707 __le32 flags;
708 __le32 filter_flags;
709 __le16 channel;
710 u8 ofdm_ht_single_stream_basic_rates;
711 u8 ofdm_ht_dual_stream_basic_rates;
712 u8 reserved4;
713 u8 reserved5;
714} __packed;
715
716/*
717 * C_RXON_ASSOC = 0x11 (command, has simple generic response)
718 */
719struct il3945_rxon_assoc_cmd {
720 __le32 flags;
721 __le32 filter_flags;
722 u8 ofdm_basic_rates;
723 u8 cck_basic_rates;
724 __le16 reserved;
725} __packed;
726
727struct il4965_rxon_assoc_cmd {
728 __le32 flags;
729 __le32 filter_flags;
730 u8 ofdm_basic_rates;
731 u8 cck_basic_rates;
732 u8 ofdm_ht_single_stream_basic_rates;
733 u8 ofdm_ht_dual_stream_basic_rates;
734 __le16 rx_chain_select_flags;
735 __le16 reserved;
736} __packed;
737
738#define IL_CONN_MAX_LISTEN_INTERVAL 10
739#define IL_MAX_UCODE_BEACON_INTERVAL 4 /* 4096 */
740#define IL39_MAX_UCODE_BEACON_INTERVAL 1 /* 1024 */
741
742/*
743 * C_RXON_TIMING = 0x14 (command, has simple generic response)
744 */
745struct il_rxon_time_cmd {
746 __le64 timestamp;
747 __le16 beacon_interval;
748 __le16 atim_win;
749 __le32 beacon_init_val;
750 __le16 listen_interval;
751 u8 dtim_period;
752 u8 delta_cp_bss_tbtts;
753} __packed;
754
755/*
756 * C_CHANNEL_SWITCH = 0x72 (command, has simple generic response)
757 */
758struct il3945_channel_switch_cmd {
759 u8 band;
760 u8 expect_beacon;
761 __le16 channel;
762 __le32 rxon_flags;
763 __le32 rxon_filter_flags;
764 __le32 switch_time;
765 struct il3945_power_per_rate power[IL_MAX_RATES];
766} __packed;
767
768struct il4965_channel_switch_cmd {
769 u8 band;
770 u8 expect_beacon;
771 __le16 channel;
772 __le32 rxon_flags;
773 __le32 rxon_filter_flags;
774 __le32 switch_time;
775 struct il4965_tx_power_db tx_power;
776} __packed;
777
778/*
779 * N_CHANNEL_SWITCH = 0x73 (notification only, not a command)
780 */
781struct il_csa_notification {
782 __le16 band;
783 __le16 channel;
784 __le32 status; /* 0 - OK, 1 - fail */
785} __packed;
786
787/******************************************************************************
788 * (2)
789 * Quality-of-Service (QOS) Commands & Responses:
790 *
791 *****************************************************************************/
792
793/**
794 * struct il_ac_qos -- QOS timing params for C_QOS_PARAM
795 * One for each of 4 EDCA access categories in struct il_qosparam_cmd
796 *
797 * @cw_min: Contention win, start value in numbers of slots.
798 * Should be a power-of-2, minus 1. Device's default is 0x0f.
799 * @cw_max: Contention win, max value in numbers of slots.
800 * Should be a power-of-2, minus 1. Device's default is 0x3f.
801 * @aifsn: Number of slots in Arbitration Interframe Space (before
802 * performing random backoff timing prior to Tx). Device default 1.
803 * @edca_txop: Length of Tx opportunity, in uSecs. Device default is 0.
804 *
805 * Device will automatically increase contention win by (2*CW) + 1 for each
806 * transmission retry. Device uses cw_max as a bit mask, ANDed with new CW
807 * value, to cap the CW value.
808 */
809struct il_ac_qos {
810 __le16 cw_min;
811 __le16 cw_max;
812 u8 aifsn;
813 u8 reserved1;
814 __le16 edca_txop;
815} __packed;
816
817/* QoS flags defines */
818#define QOS_PARAM_FLG_UPDATE_EDCA_MSK cpu_to_le32(0x01)
819#define QOS_PARAM_FLG_TGN_MSK cpu_to_le32(0x02)
820#define QOS_PARAM_FLG_TXOP_TYPE_MSK cpu_to_le32(0x10)
821
822/* Number of Access Categories (AC) (EDCA), queues 0..3 */
823#define AC_NUM 4
824
825/*
826 * C_QOS_PARAM = 0x13 (command, has simple generic response)
827 *
828 * This command sets up timings for each of the 4 prioritized EDCA Tx FIFOs
829 * 0: Background, 1: Best Effort, 2: Video, 3: Voice.
830 */
831struct il_qosparam_cmd {
832 __le32 qos_flags;
833 struct il_ac_qos ac[AC_NUM];
834} __packed;
835
836/******************************************************************************
837 * (3)
838 * Add/Modify Stations Commands & Responses:
839 *
840 *****************************************************************************/
841/*
842 * Multi station support
843 */
844
845/* Special, dedicated locations within device's station table */
846#define IL_AP_ID 0
847#define IL_STA_ID 2
848#define IL3945_BROADCAST_ID 24
849#define IL3945_STATION_COUNT 25
850#define IL4965_BROADCAST_ID 31
851#define IL4965_STATION_COUNT 32
852
853#define IL_STATION_COUNT 32 /* MAX(3945,4965) */
854#define IL_INVALID_STATION 255
855
856#define STA_FLG_TX_RATE_MSK cpu_to_le32(1 << 2)
857#define STA_FLG_PWR_SAVE_MSK cpu_to_le32(1 << 8)
858#define STA_FLG_RTS_MIMO_PROT_MSK cpu_to_le32(1 << 17)
859#define STA_FLG_AGG_MPDU_8US_MSK cpu_to_le32(1 << 18)
860#define STA_FLG_MAX_AGG_SIZE_POS (19)
861#define STA_FLG_MAX_AGG_SIZE_MSK cpu_to_le32(3 << 19)
862#define STA_FLG_HT40_EN_MSK cpu_to_le32(1 << 21)
863#define STA_FLG_MIMO_DIS_MSK cpu_to_le32(1 << 22)
864#define STA_FLG_AGG_MPDU_DENSITY_POS (23)
865#define STA_FLG_AGG_MPDU_DENSITY_MSK cpu_to_le32(7 << 23)
866
867/* Use in mode field. 1: modify existing entry, 0: add new station entry */
868#define STA_CONTROL_MODIFY_MSK 0x01
869
870/* key flags __le16*/
871#define STA_KEY_FLG_ENCRYPT_MSK cpu_to_le16(0x0007)
872#define STA_KEY_FLG_NO_ENC cpu_to_le16(0x0000)
873#define STA_KEY_FLG_WEP cpu_to_le16(0x0001)
874#define STA_KEY_FLG_CCMP cpu_to_le16(0x0002)
875#define STA_KEY_FLG_TKIP cpu_to_le16(0x0003)
876
877#define STA_KEY_FLG_KEYID_POS 8
878#define STA_KEY_FLG_INVALID cpu_to_le16(0x0800)
879/* wep key is either from global key (0) or from station info array (1) */
880#define STA_KEY_FLG_MAP_KEY_MSK cpu_to_le16(0x0008)
881
882/* wep key in STA: 5-bytes (0) or 13-bytes (1) */
883#define STA_KEY_FLG_KEY_SIZE_MSK cpu_to_le16(0x1000)
884#define STA_KEY_MULTICAST_MSK cpu_to_le16(0x4000)
885#define STA_KEY_MAX_NUM 8
886
887/* Flags indicate whether to modify vs. don't change various station params */
888#define STA_MODIFY_KEY_MASK 0x01
889#define STA_MODIFY_TID_DISABLE_TX 0x02
890#define STA_MODIFY_TX_RATE_MSK 0x04
891#define STA_MODIFY_ADDBA_TID_MSK 0x08
892#define STA_MODIFY_DELBA_TID_MSK 0x10
893#define STA_MODIFY_SLEEP_TX_COUNT_MSK 0x20
894
895/* Receiver address (actually, Rx station's idx into station table),
896 * combined with Traffic ID (QOS priority), in format used by Tx Scheduler */
897#define BUILD_RAxTID(sta_id, tid) (((sta_id) << 4) + (tid))
898
899struct il4965_keyinfo {
900 __le16 key_flags;
901 u8 tkip_rx_tsc_byte2; /* TSC[2] for key mix ph1 detection */
902 u8 reserved1;
903 __le16 tkip_rx_ttak[5]; /* 10-byte unicast TKIP TTAK */
904 u8 key_offset;
905 u8 reserved2;
906 u8 key[16]; /* 16-byte unicast decryption key */
907} __packed;
908
909/**
910 * struct sta_id_modify
911 * @addr[ETH_ALEN]: station's MAC address
912 * @sta_id: idx of station in uCode's station table
913 * @modify_mask: STA_MODIFY_*, 1: modify, 0: don't change
914 *
915 * Driver selects unused table idx when adding new station,
916 * or the idx to a pre-existing station entry when modifying that station.
917 * Some idxes have special purposes (IL_AP_ID, idx 0, is for AP).
918 *
919 * modify_mask flags select which parameters to modify vs. leave alone.
920 */
921struct sta_id_modify {
922 u8 addr[ETH_ALEN];
923 __le16 reserved1;
924 u8 sta_id;
925 u8 modify_mask;
926 __le16 reserved2;
927} __packed;
928
929/*
930 * C_ADD_STA = 0x18 (command)
931 *
932 * The device contains an internal table of per-station information,
933 * with info on security keys, aggregation parameters, and Tx rates for
934 * initial Tx attempt and any retries (4965 devices uses
935 * C_TX_LINK_QUALITY_CMD,
936 * 3945 uses C_RATE_SCALE to set up rate tables).
937 *
938 * C_ADD_STA sets up the table entry for one station, either creating
939 * a new entry, or modifying a pre-existing one.
940 *
941 * NOTE: RXON command (without "associated" bit set) wipes the station table
942 * clean. Moving into RF_KILL state does this also. Driver must set up
943 * new station table before transmitting anything on the RXON channel
944 * (except active scans or active measurements; those commands carry
945 * their own txpower/rate setup data).
946 *
947 * When getting started on a new channel, driver must set up the
948 * IL_BROADCAST_ID entry (last entry in the table). For a client
949 * station in a BSS, once an AP is selected, driver sets up the AP STA
950 * in the IL_AP_ID entry (1st entry in the table). BROADCAST and AP
951 * are all that are needed for a BSS client station. If the device is
952 * used as AP, or in an IBSS network, driver must set up station table
953 * entries for all STAs in network, starting with idx IL_STA_ID.
954 */
955
956struct il3945_addsta_cmd {
957 u8 mode; /* 1: modify existing, 0: add new station */
958 u8 reserved[3];
959 struct sta_id_modify sta;
960 struct il4965_keyinfo key;
961 __le32 station_flags; /* STA_FLG_* */
962 __le32 station_flags_msk; /* STA_FLG_* */
963
964 /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID)
965 * corresponding to bit (e.g. bit 5 controls TID 5).
966 * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */
967 __le16 tid_disable_tx;
968
969 __le16 rate_n_flags;
970
971 /* TID for which to add block-ack support.
972 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
973 u8 add_immediate_ba_tid;
974
975 /* TID for which to remove block-ack support.
976 * Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */
977 u8 remove_immediate_ba_tid;
978
979 /* Starting Sequence Number for added block-ack support.
980 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
981 __le16 add_immediate_ba_ssn;
982} __packed;
983
984struct il4965_addsta_cmd {
985 u8 mode; /* 1: modify existing, 0: add new station */
986 u8 reserved[3];
987 struct sta_id_modify sta;
988 struct il4965_keyinfo key;
989 __le32 station_flags; /* STA_FLG_* */
990 __le32 station_flags_msk; /* STA_FLG_* */
991
992 /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID)
993 * corresponding to bit (e.g. bit 5 controls TID 5).
994 * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */
995 __le16 tid_disable_tx;
996
997 __le16 reserved1;
998
999 /* TID for which to add block-ack support.
1000 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
1001 u8 add_immediate_ba_tid;
1002
1003 /* TID for which to remove block-ack support.
1004 * Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */
1005 u8 remove_immediate_ba_tid;
1006
1007 /* Starting Sequence Number for added block-ack support.
1008 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
1009 __le16 add_immediate_ba_ssn;
1010
1011 /*
1012 * Number of packets OK to transmit to station even though
1013 * it is asleep -- used to synchronise PS-poll and u-APSD
1014 * responses while ucode keeps track of STA sleep state.
1015 */
1016 __le16 sleep_tx_count;
1017
1018 __le16 reserved2;
1019} __packed;
1020
1021/* Wrapper struct for 3945 and 4965 addsta_cmd structures */
1022struct il_addsta_cmd {
1023 u8 mode; /* 1: modify existing, 0: add new station */
1024 u8 reserved[3];
1025 struct sta_id_modify sta;
1026 struct il4965_keyinfo key;
1027 __le32 station_flags; /* STA_FLG_* */
1028 __le32 station_flags_msk; /* STA_FLG_* */
1029
1030 /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID)
1031 * corresponding to bit (e.g. bit 5 controls TID 5).
1032 * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */
1033 __le16 tid_disable_tx;
1034
1035 __le16 rate_n_flags; /* 3945 only */
1036
1037 /* TID for which to add block-ack support.
1038 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
1039 u8 add_immediate_ba_tid;
1040
1041 /* TID for which to remove block-ack support.
1042 * Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */
1043 u8 remove_immediate_ba_tid;
1044
1045 /* Starting Sequence Number for added block-ack support.
1046 * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
1047 __le16 add_immediate_ba_ssn;
1048
1049 /*
1050 * Number of packets OK to transmit to station even though
1051 * it is asleep -- used to synchronise PS-poll and u-APSD
1052 * responses while ucode keeps track of STA sleep state.
1053 */
1054 __le16 sleep_tx_count;
1055
1056 __le16 reserved2;
1057} __packed;
1058
1059#define ADD_STA_SUCCESS_MSK 0x1
1060#define ADD_STA_NO_ROOM_IN_TBL 0x2
1061#define ADD_STA_NO_BLOCK_ACK_RESOURCE 0x4
1062#define ADD_STA_MODIFY_NON_EXIST_STA 0x8
1063/*
1064 * C_ADD_STA = 0x18 (response)
1065 */
1066struct il_add_sta_resp {
1067 u8 status; /* ADD_STA_* */
1068} __packed;
1069
1070#define REM_STA_SUCCESS_MSK 0x1
1071/*
1072 * C_REM_STA = 0x19 (response)
1073 */
1074struct il_rem_sta_resp {
1075 u8 status;
1076} __packed;
1077
1078/*
1079 * C_REM_STA = 0x19 (command)
1080 */
1081struct il_rem_sta_cmd {
1082 u8 num_sta; /* number of removed stations */
1083 u8 reserved[3];
1084 u8 addr[ETH_ALEN]; /* MAC addr of the first station */
1085 u8 reserved2[2];
1086} __packed;
1087
1088#define IL_TX_FIFO_BK_MSK cpu_to_le32(BIT(0))
1089#define IL_TX_FIFO_BE_MSK cpu_to_le32(BIT(1))
1090#define IL_TX_FIFO_VI_MSK cpu_to_le32(BIT(2))
1091#define IL_TX_FIFO_VO_MSK cpu_to_le32(BIT(3))
1092#define IL_AGG_TX_QUEUE_MSK cpu_to_le32(0xffc00)
1093
1094#define IL_DROP_SINGLE 0
1095#define IL_DROP_SELECTED 1
1096#define IL_DROP_ALL 2
1097
1098/*
1099 * REPLY_WEP_KEY = 0x20
1100 */
1101struct il_wep_key {
1102 u8 key_idx;
1103 u8 key_offset;
1104 u8 reserved1[2];
1105 u8 key_size;
1106 u8 reserved2[3];
1107 u8 key[16];
1108} __packed;
1109
1110struct il_wep_cmd {
1111 u8 num_keys;
1112 u8 global_key_type;
1113 u8 flags;
1114 u8 reserved;
1115 struct il_wep_key key[0];
1116} __packed;
1117
1118#define WEP_KEY_WEP_TYPE 1
1119#define WEP_KEYS_MAX 4
1120#define WEP_INVALID_OFFSET 0xff
1121#define WEP_KEY_LEN_64 5
1122#define WEP_KEY_LEN_128 13
1123
1124/******************************************************************************
1125 * (4)
1126 * Rx Responses:
1127 *
1128 *****************************************************************************/
1129
1130#define RX_RES_STATUS_NO_CRC32_ERROR cpu_to_le32(1 << 0)
1131#define RX_RES_STATUS_NO_RXE_OVERFLOW cpu_to_le32(1 << 1)
1132
1133#define RX_RES_PHY_FLAGS_BAND_24_MSK cpu_to_le16(1 << 0)
1134#define RX_RES_PHY_FLAGS_MOD_CCK_MSK cpu_to_le16(1 << 1)
1135#define RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK cpu_to_le16(1 << 2)
1136#define RX_RES_PHY_FLAGS_NARROW_BAND_MSK cpu_to_le16(1 << 3)
1137#define RX_RES_PHY_FLAGS_ANTENNA_MSK 0xf0
1138#define RX_RES_PHY_FLAGS_ANTENNA_POS 4
1139
1140#define RX_RES_STATUS_SEC_TYPE_MSK (0x7 << 8)
1141#define RX_RES_STATUS_SEC_TYPE_NONE (0x0 << 8)
1142#define RX_RES_STATUS_SEC_TYPE_WEP (0x1 << 8)
1143#define RX_RES_STATUS_SEC_TYPE_CCMP (0x2 << 8)
1144#define RX_RES_STATUS_SEC_TYPE_TKIP (0x3 << 8)
1145#define RX_RES_STATUS_SEC_TYPE_ERR (0x7 << 8)
1146
1147#define RX_RES_STATUS_STATION_FOUND (1<<6)
1148#define RX_RES_STATUS_NO_STATION_INFO_MISMATCH (1<<7)
1149
1150#define RX_RES_STATUS_DECRYPT_TYPE_MSK (0x3 << 11)
1151#define RX_RES_STATUS_NOT_DECRYPT (0x0 << 11)
1152#define RX_RES_STATUS_DECRYPT_OK (0x3 << 11)
1153#define RX_RES_STATUS_BAD_ICV_MIC (0x1 << 11)
1154#define RX_RES_STATUS_BAD_KEY_TTAK (0x2 << 11)
1155
1156#define RX_MPDU_RES_STATUS_ICV_OK (0x20)
1157#define RX_MPDU_RES_STATUS_MIC_OK (0x40)
1158#define RX_MPDU_RES_STATUS_TTAK_OK (1 << 7)
1159#define RX_MPDU_RES_STATUS_DEC_DONE_MSK (0x800)
1160
1161struct il3945_rx_frame_stats {
1162 u8 phy_count;
1163 u8 id;
1164 u8 rssi;
1165 u8 agc;
1166 __le16 sig_avg;
1167 __le16 noise_diff;
1168 u8 payload[0];
1169} __packed;
1170
1171struct il3945_rx_frame_hdr {
1172 __le16 channel;
1173 __le16 phy_flags;
1174 u8 reserved1;
1175 u8 rate;
1176 __le16 len;
1177 u8 payload[0];
1178} __packed;
1179
1180struct il3945_rx_frame_end {
1181 __le32 status;
1182 __le64 timestamp;
1183 __le32 beacon_timestamp;
1184} __packed;
1185
1186/*
1187 * N_3945_RX = 0x1b (response only, not a command)
1188 *
1189 * NOTE: DO NOT dereference from casts to this structure
1190 * It is provided only for calculating minimum data set size.
1191 * The actual offsets of the hdr and end are dynamic based on
1192 * stats.phy_count
1193 */
1194struct il3945_rx_frame {
1195 struct il3945_rx_frame_stats stats;
1196 struct il3945_rx_frame_hdr hdr;
1197 struct il3945_rx_frame_end end;
1198} __packed;
1199
1200#define IL39_RX_FRAME_SIZE (4 + sizeof(struct il3945_rx_frame))
1201
1202/* Fixed (non-configurable) rx data from phy */
1203
1204#define IL49_RX_RES_PHY_CNT 14
1205#define IL49_RX_PHY_FLAGS_ANTENNAE_OFFSET (4)
1206#define IL49_RX_PHY_FLAGS_ANTENNAE_MASK (0x70)
1207#define IL49_AGC_DB_MASK (0x3f80) /* MASK(7,13) */
1208#define IL49_AGC_DB_POS (7)
1209struct il4965_rx_non_cfg_phy {
1210 __le16 ant_selection; /* ant A bit 4, ant B bit 5, ant C bit 6 */
1211 __le16 agc_info; /* agc code 0:6, agc dB 7:13, reserved 14:15 */
1212 u8 rssi_info[6]; /* we use even entries, 0/2/4 for A/B/C rssi */
1213 u8 pad[0];
1214} __packed;
1215
1216/*
1217 * N_RX = 0xc3 (response only, not a command)
1218 * Used only for legacy (non 11n) frames.
1219 */
1220struct il_rx_phy_res {
1221 u8 non_cfg_phy_cnt; /* non configurable DSP phy data byte count */
1222 u8 cfg_phy_cnt; /* configurable DSP phy data byte count */
1223 u8 stat_id; /* configurable DSP phy data set ID */
1224 u8 reserved1;
1225 __le64 timestamp; /* TSF at on air rise */
1226 __le32 beacon_time_stamp; /* beacon at on-air rise */
1227 __le16 phy_flags; /* general phy flags: band, modulation, ... */
1228 __le16 channel; /* channel number */
1229 u8 non_cfg_phy_buf[32]; /* for various implementations of non_cfg_phy */
1230 __le32 rate_n_flags; /* RATE_MCS_* */
1231 __le16 byte_count; /* frame's byte-count */
1232 __le16 frame_time; /* frame's time on the air */
1233} __packed;
1234
1235struct il_rx_mpdu_res_start {
1236 __le16 byte_count;
1237 __le16 reserved;
1238} __packed;
1239
1240/******************************************************************************
1241 * (5)
1242 * Tx Commands & Responses:
1243 *
1244 * Driver must place each C_TX command into one of the prioritized Tx
1245 * queues in host DRAM, shared between driver and device (see comments for
1246 * SCD registers and Tx/Rx Queues). When the device's Tx scheduler and uCode
1247 * are preparing to transmit, the device pulls the Tx command over the PCI
1248 * bus via one of the device's Tx DMA channels, to fill an internal FIFO
1249 * from which data will be transmitted.
1250 *
1251 * uCode handles all timing and protocol related to control frames
1252 * (RTS/CTS/ACK), based on flags in the Tx command. uCode and Tx scheduler
1253 * handle reception of block-acks; uCode updates the host driver via
1254 * N_COMPRESSED_BA.
1255 *
1256 * uCode handles retrying Tx when an ACK is expected but not received.
1257 * This includes trying lower data rates than the one requested in the Tx
1258 * command, as set up by the C_RATE_SCALE (for 3945) or
1259 * C_TX_LINK_QUALITY_CMD (4965).
1260 *
1261 * Driver sets up transmit power for various rates via C_TX_PWR_TBL.
1262 * This command must be executed after every RXON command, before Tx can occur.
1263 *****************************************************************************/
1264
1265/* C_TX Tx flags field */
1266
1267/*
1268 * 1: Use Request-To-Send protocol before this frame.
1269 * Mutually exclusive vs. TX_CMD_FLG_CTS_MSK.
1270 */
1271#define TX_CMD_FLG_RTS_MSK cpu_to_le32(1 << 1)
1272
1273/*
1274 * 1: Transmit Clear-To-Send to self before this frame.
1275 * Driver should set this for AUTH/DEAUTH/ASSOC-REQ/REASSOC mgmnt frames.
1276 * Mutually exclusive vs. TX_CMD_FLG_RTS_MSK.
1277 */
1278#define TX_CMD_FLG_CTS_MSK cpu_to_le32(1 << 2)
1279
1280/* 1: Expect ACK from receiving station
1281 * 0: Don't expect ACK (MAC header's duration field s/b 0)
1282 * Set this for unicast frames, but not broadcast/multicast. */
1283#define TX_CMD_FLG_ACK_MSK cpu_to_le32(1 << 3)
1284
1285/* For 4965 devices:
1286 * 1: Use rate scale table (see C_TX_LINK_QUALITY_CMD).
1287 * Tx command's initial_rate_idx indicates first rate to try;
1288 * uCode walks through table for additional Tx attempts.
1289 * 0: Use Tx rate/MCS from Tx command's rate_n_flags field.
1290 * This rate will be used for all Tx attempts; it will not be scaled. */
1291#define TX_CMD_FLG_STA_RATE_MSK cpu_to_le32(1 << 4)
1292
1293/* 1: Expect immediate block-ack.
1294 * Set when Txing a block-ack request frame. Also set TX_CMD_FLG_ACK_MSK. */
1295#define TX_CMD_FLG_IMM_BA_RSP_MASK cpu_to_le32(1 << 6)
1296
1297/*
1298 * 1: Frame requires full Tx-Op protection.
1299 * Set this if either RTS or CTS Tx Flag gets set.
1300 */
1301#define TX_CMD_FLG_FULL_TXOP_PROT_MSK cpu_to_le32(1 << 7)
1302
1303/* Tx antenna selection field; used only for 3945, reserved (0) for 4965 devices.
1304 * Set field to "0" to allow 3945 uCode to select antenna (normal usage). */
1305#define TX_CMD_FLG_ANT_SEL_MSK cpu_to_le32(0xf00)
1306#define TX_CMD_FLG_ANT_A_MSK cpu_to_le32(1 << 8)
1307#define TX_CMD_FLG_ANT_B_MSK cpu_to_le32(1 << 9)
1308
1309/* 1: uCode overrides sequence control field in MAC header.
1310 * 0: Driver provides sequence control field in MAC header.
1311 * Set this for management frames, non-QOS data frames, non-unicast frames,
1312 * and also in Tx command embedded in C_SCAN for active scans. */
1313#define TX_CMD_FLG_SEQ_CTL_MSK cpu_to_le32(1 << 13)
1314
1315/* 1: This frame is non-last MPDU; more fragments are coming.
1316 * 0: Last fragment, or not using fragmentation. */
1317#define TX_CMD_FLG_MORE_FRAG_MSK cpu_to_le32(1 << 14)
1318
1319/* 1: uCode calculates and inserts Timestamp Function (TSF) in outgoing frame.
1320 * 0: No TSF required in outgoing frame.
1321 * Set this for transmitting beacons and probe responses. */
1322#define TX_CMD_FLG_TSF_MSK cpu_to_le32(1 << 16)
1323
1324/* 1: Driver inserted 2 bytes pad after the MAC header, for (required) dword
1325 * alignment of frame's payload data field.
1326 * 0: No pad
1327 * Set this for MAC headers with 26 or 30 bytes, i.e. those with QOS or ADDR4
1328 * field (but not both). Driver must align frame data (i.e. data following
1329 * MAC header) to DWORD boundary. */
1330#define TX_CMD_FLG_MH_PAD_MSK cpu_to_le32(1 << 20)
1331
1332/* accelerate aggregation support
1333 * 0 - no CCMP encryption; 1 - CCMP encryption */
1334#define TX_CMD_FLG_AGG_CCMP_MSK cpu_to_le32(1 << 22)
1335
1336/* HCCA-AP - disable duration overwriting. */
1337#define TX_CMD_FLG_DUR_MSK cpu_to_le32(1 << 25)
1338
1339/*
1340 * TX command security control
1341 */
1342#define TX_CMD_SEC_WEP 0x01
1343#define TX_CMD_SEC_CCM 0x02
1344#define TX_CMD_SEC_TKIP 0x03
1345#define TX_CMD_SEC_MSK 0x03
1346#define TX_CMD_SEC_SHIFT 6
1347#define TX_CMD_SEC_KEY128 0x08
1348
1349/*
1350 * security overhead sizes
1351 */
1352#define WEP_IV_LEN 4
1353#define WEP_ICV_LEN 4
1354#define CCMP_MIC_LEN 8
1355#define TKIP_ICV_LEN 4
1356
1357/*
1358 * C_TX = 0x1c (command)
1359 */
1360
1361struct il3945_tx_cmd {
1362 /*
1363 * MPDU byte count:
1364 * MAC header (24/26/30/32 bytes) + 2 bytes pad if 26/30 header size,
1365 * + 8 byte IV for CCM or TKIP (not used for WEP)
1366 * + Data payload
1367 * + 8-byte MIC (not used for CCM/WEP)
1368 * NOTE: Does not include Tx command bytes, post-MAC pad bytes,
1369 * MIC (CCM) 8 bytes, ICV (WEP/TKIP/CKIP) 4 bytes, CRC 4 bytes.i
1370 * Range: 14-2342 bytes.
1371 */
1372 __le16 len;
1373
1374 /*
1375 * MPDU or MSDU byte count for next frame.
1376 * Used for fragmentation and bursting, but not 11n aggregation.
1377 * Same as "len", but for next frame. Set to 0 if not applicable.
1378 */
1379 __le16 next_frame_len;
1380
1381 __le32 tx_flags; /* TX_CMD_FLG_* */
1382
1383 u8 rate;
1384
1385 /* Index of recipient station in uCode's station table */
1386 u8 sta_id;
1387 u8 tid_tspec;
1388 u8 sec_ctl;
1389 u8 key[16];
1390 union {
1391 u8 byte[8];
1392 __le16 word[4];
1393 __le32 dw[2];
1394 } tkip_mic;
1395 __le32 next_frame_info;
1396 union {
1397 __le32 life_time;
1398 __le32 attempt;
1399 } stop_time;
1400 u8 supp_rates[2];
1401 u8 rts_retry_limit; /*byte 50 */
1402 u8 data_retry_limit; /*byte 51 */
1403 union {
1404 __le16 pm_frame_timeout;
1405 __le16 attempt_duration;
1406 } timeout;
1407
1408 /*
1409 * Duration of EDCA burst Tx Opportunity, in 32-usec units.
1410 * Set this if txop time is not specified by HCCA protocol (e.g. by AP).
1411 */
1412 __le16 driver_txop;
1413
1414 /*
1415 * MAC header goes here, followed by 2 bytes padding if MAC header
1416 * length is 26 or 30 bytes, followed by payload data
1417 */
1418 u8 payload[0];
1419 struct ieee80211_hdr hdr[0];
1420} __packed;
1421
1422/*
1423 * C_TX = 0x1c (response)
1424 */
1425struct il3945_tx_resp {
1426 u8 failure_rts;
1427 u8 failure_frame;
1428 u8 bt_kill_count;
1429 u8 rate;
1430 __le32 wireless_media_time;
1431 __le32 status; /* TX status */
1432} __packed;
1433
1434/*
1435 * 4965 uCode updates these Tx attempt count values in host DRAM.
1436 * Used for managing Tx retries when expecting block-acks.
1437 * Driver should set these fields to 0.
1438 */
1439struct il_dram_scratch {
1440 u8 try_cnt; /* Tx attempts */
1441 u8 bt_kill_cnt; /* Tx attempts blocked by Bluetooth device */
1442 __le16 reserved;
1443} __packed;
1444
1445struct il_tx_cmd {
1446 /*
1447 * MPDU byte count:
1448 * MAC header (24/26/30/32 bytes) + 2 bytes pad if 26/30 header size,
1449 * + 8 byte IV for CCM or TKIP (not used for WEP)
1450 * + Data payload
1451 * + 8-byte MIC (not used for CCM/WEP)
1452 * NOTE: Does not include Tx command bytes, post-MAC pad bytes,
1453 * MIC (CCM) 8 bytes, ICV (WEP/TKIP/CKIP) 4 bytes, CRC 4 bytes.i
1454 * Range: 14-2342 bytes.
1455 */
1456 __le16 len;
1457
1458 /*
1459 * MPDU or MSDU byte count for next frame.
1460 * Used for fragmentation and bursting, but not 11n aggregation.
1461 * Same as "len", but for next frame. Set to 0 if not applicable.
1462 */
1463 __le16 next_frame_len;
1464
1465 __le32 tx_flags; /* TX_CMD_FLG_* */
1466
1467 /* uCode may modify this field of the Tx command (in host DRAM!).
1468 * Driver must also set dram_lsb_ptr and dram_msb_ptr in this cmd. */
1469 struct il_dram_scratch scratch;
1470
1471 /* Rate for *all* Tx attempts, if TX_CMD_FLG_STA_RATE_MSK is cleared. */
1472 __le32 rate_n_flags; /* RATE_MCS_* */
1473
1474 /* Index of destination station in uCode's station table */
1475 u8 sta_id;
1476
1477 /* Type of security encryption: CCM or TKIP */
1478 u8 sec_ctl; /* TX_CMD_SEC_* */
1479
1480 /*
1481 * Index into rate table (see C_TX_LINK_QUALITY_CMD) for initial
1482 * Tx attempt, if TX_CMD_FLG_STA_RATE_MSK is set. Normally "0" for
1483 * data frames, this field may be used to selectively reduce initial
1484 * rate (via non-0 value) for special frames (e.g. management), while
1485 * still supporting rate scaling for all frames.
1486 */
1487 u8 initial_rate_idx;
1488 u8 reserved;
1489 u8 key[16];
1490 __le16 next_frame_flags;
1491 __le16 reserved2;
1492 union {
1493 __le32 life_time;
1494 __le32 attempt;
1495 } stop_time;
1496
1497 /* Host DRAM physical address pointer to "scratch" in this command.
1498 * Must be dword aligned. "0" in dram_lsb_ptr disables usage. */
1499 __le32 dram_lsb_ptr;
1500 u8 dram_msb_ptr;
1501
1502 u8 rts_retry_limit; /*byte 50 */
1503 u8 data_retry_limit; /*byte 51 */
1504 u8 tid_tspec;
1505 union {
1506 __le16 pm_frame_timeout;
1507 __le16 attempt_duration;
1508 } timeout;
1509
1510 /*
1511 * Duration of EDCA burst Tx Opportunity, in 32-usec units.
1512 * Set this if txop time is not specified by HCCA protocol (e.g. by AP).
1513 */
1514 __le16 driver_txop;
1515
1516 /*
1517 * MAC header goes here, followed by 2 bytes padding if MAC header
1518 * length is 26 or 30 bytes, followed by payload data
1519 */
1520 u8 payload[0];
1521 struct ieee80211_hdr hdr[0];
1522} __packed;
1523
1524/* TX command response is sent after *3945* transmission attempts.
1525 *
1526 * NOTES:
1527 *
1528 * TX_STATUS_FAIL_NEXT_FRAG
1529 *
1530 * If the fragment flag in the MAC header for the frame being transmitted
1531 * is set and there is insufficient time to transmit the next frame, the
1532 * TX status will be returned with 'TX_STATUS_FAIL_NEXT_FRAG'.
1533 *
1534 * TX_STATUS_FIFO_UNDERRUN
1535 *
1536 * Indicates the host did not provide bytes to the FIFO fast enough while
1537 * a TX was in progress.
1538 *
1539 * TX_STATUS_FAIL_MGMNT_ABORT
1540 *
1541 * This status is only possible if the ABORT ON MGMT RX parameter was
1542 * set to true with the TX command.
1543 *
1544 * If the MSB of the status parameter is set then an abort sequence is
1545 * required. This sequence consists of the host activating the TX Abort
1546 * control line, and then waiting for the TX Abort command response. This
1547 * indicates that a the device is no longer in a transmit state, and that the
1548 * command FIFO has been cleared. The host must then deactivate the TX Abort
1549 * control line. Receiving is still allowed in this case.
1550 */
1551enum {
1552 TX_3945_STATUS_SUCCESS = 0x01,
1553 TX_3945_STATUS_DIRECT_DONE = 0x02,
1554 TX_3945_STATUS_FAIL_SHORT_LIMIT = 0x82,
1555 TX_3945_STATUS_FAIL_LONG_LIMIT = 0x83,
1556 TX_3945_STATUS_FAIL_FIFO_UNDERRUN = 0x84,
1557 TX_3945_STATUS_FAIL_MGMNT_ABORT = 0x85,
1558 TX_3945_STATUS_FAIL_NEXT_FRAG = 0x86,
1559 TX_3945_STATUS_FAIL_LIFE_EXPIRE = 0x87,
1560 TX_3945_STATUS_FAIL_DEST_PS = 0x88,
1561 TX_3945_STATUS_FAIL_ABORTED = 0x89,
1562 TX_3945_STATUS_FAIL_BT_RETRY = 0x8a,
1563 TX_3945_STATUS_FAIL_STA_INVALID = 0x8b,
1564 TX_3945_STATUS_FAIL_FRAG_DROPPED = 0x8c,
1565 TX_3945_STATUS_FAIL_TID_DISABLE = 0x8d,
1566 TX_3945_STATUS_FAIL_FRAME_FLUSHED = 0x8e,
1567 TX_3945_STATUS_FAIL_INSUFFICIENT_CF_POLL = 0x8f,
1568 TX_3945_STATUS_FAIL_TX_LOCKED = 0x90,
1569 TX_3945_STATUS_FAIL_NO_BEACON_ON_RADAR = 0x91,
1570};
1571
1572/*
1573 * TX command response is sent after *4965* transmission attempts.
1574 *
1575 * both postpone and abort status are expected behavior from uCode. there is
1576 * no special operation required from driver; except for RFKILL_FLUSH,
1577 * which required tx flush host command to flush all the tx frames in queues
1578 */
1579enum {
1580 TX_STATUS_SUCCESS = 0x01,
1581 TX_STATUS_DIRECT_DONE = 0x02,
1582 /* postpone TX */
1583 TX_STATUS_POSTPONE_DELAY = 0x40,
1584 TX_STATUS_POSTPONE_FEW_BYTES = 0x41,
1585 TX_STATUS_POSTPONE_QUIET_PERIOD = 0x43,
1586 TX_STATUS_POSTPONE_CALC_TTAK = 0x44,
1587 /* abort TX */
1588 TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY = 0x81,
1589 TX_STATUS_FAIL_SHORT_LIMIT = 0x82,
1590 TX_STATUS_FAIL_LONG_LIMIT = 0x83,
1591 TX_STATUS_FAIL_FIFO_UNDERRUN = 0x84,
1592 TX_STATUS_FAIL_DRAIN_FLOW = 0x85,
1593 TX_STATUS_FAIL_RFKILL_FLUSH = 0x86,
1594 TX_STATUS_FAIL_LIFE_EXPIRE = 0x87,
1595 TX_STATUS_FAIL_DEST_PS = 0x88,
1596 TX_STATUS_FAIL_HOST_ABORTED = 0x89,
1597 TX_STATUS_FAIL_BT_RETRY = 0x8a,
1598 TX_STATUS_FAIL_STA_INVALID = 0x8b,
1599 TX_STATUS_FAIL_FRAG_DROPPED = 0x8c,
1600 TX_STATUS_FAIL_TID_DISABLE = 0x8d,
1601 TX_STATUS_FAIL_FIFO_FLUSHED = 0x8e,
1602 TX_STATUS_FAIL_INSUFFICIENT_CF_POLL = 0x8f,
1603 TX_STATUS_FAIL_PASSIVE_NO_RX = 0x90,
1604 TX_STATUS_FAIL_NO_BEACON_ON_RADAR = 0x91,
1605};
1606
1607#define TX_PACKET_MODE_REGULAR 0x0000
1608#define TX_PACKET_MODE_BURST_SEQ 0x0100
1609#define TX_PACKET_MODE_BURST_FIRST 0x0200
1610
1611enum {
1612 TX_POWER_PA_NOT_ACTIVE = 0x0,
1613};
1614
1615enum {
1616 TX_STATUS_MSK = 0x000000ff, /* bits 0:7 */
1617 TX_STATUS_DELAY_MSK = 0x00000040,
1618 TX_STATUS_ABORT_MSK = 0x00000080,
1619 TX_PACKET_MODE_MSK = 0x0000ff00, /* bits 8:15 */
1620 TX_FIFO_NUMBER_MSK = 0x00070000, /* bits 16:18 */
1621 TX_RESERVED = 0x00780000, /* bits 19:22 */
1622 TX_POWER_PA_DETECT_MSK = 0x7f800000, /* bits 23:30 */
1623 TX_ABORT_REQUIRED_MSK = 0x80000000, /* bits 31:31 */
1624};
1625
1626/* *******************************
1627 * TX aggregation status
1628 ******************************* */
1629
1630enum {
1631 AGG_TX_STATE_TRANSMITTED = 0x00,
1632 AGG_TX_STATE_UNDERRUN_MSK = 0x01,
1633 AGG_TX_STATE_FEW_BYTES_MSK = 0x04,
1634 AGG_TX_STATE_ABORT_MSK = 0x08,
1635 AGG_TX_STATE_LAST_SENT_TTL_MSK = 0x10,
1636 AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK = 0x20,
1637 AGG_TX_STATE_SCD_QUERY_MSK = 0x80,
1638 AGG_TX_STATE_TEST_BAD_CRC32_MSK = 0x100,
1639 AGG_TX_STATE_RESPONSE_MSK = 0x1ff,
1640 AGG_TX_STATE_DUMP_TX_MSK = 0x200,
1641 AGG_TX_STATE_DELAY_TX_MSK = 0x400
1642};
1643
1644#define AGG_TX_STATUS_MSK 0x00000fff /* bits 0:11 */
1645#define AGG_TX_TRY_MSK 0x0000f000 /* bits 12:15 */
1646
1647#define AGG_TX_STATE_LAST_SENT_MSK (AGG_TX_STATE_LAST_SENT_TTL_MSK | \
1648 AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK)
1649
1650/* # tx attempts for first frame in aggregation */
1651#define AGG_TX_STATE_TRY_CNT_POS 12
1652#define AGG_TX_STATE_TRY_CNT_MSK 0xf000
1653
1654/* Command ID and sequence number of Tx command for this frame */
1655#define AGG_TX_STATE_SEQ_NUM_POS 16
1656#define AGG_TX_STATE_SEQ_NUM_MSK 0xffff0000
1657
1658/*
1659 * C_TX = 0x1c (response)
1660 *
1661 * This response may be in one of two slightly different formats, indicated
1662 * by the frame_count field:
1663 *
1664 * 1) No aggregation (frame_count == 1). This reports Tx results for
1665 * a single frame. Multiple attempts, at various bit rates, may have
1666 * been made for this frame.
1667 *
1668 * 2) Aggregation (frame_count > 1). This reports Tx results for
1669 * 2 or more frames that used block-acknowledge. All frames were
1670 * transmitted at same rate. Rate scaling may have been used if first
1671 * frame in this new agg block failed in previous agg block(s).
1672 *
1673 * Note that, for aggregation, ACK (block-ack) status is not delivered here;
1674 * block-ack has not been received by the time the 4965 device records
1675 * this status.
1676 * This status relates to reasons the tx might have been blocked or aborted
1677 * within the sending station (this 4965 device), rather than whether it was
1678 * received successfully by the destination station.
1679 */
1680struct agg_tx_status {
1681 __le16 status;
1682 __le16 sequence;
1683} __packed;
1684
1685struct il4965_tx_resp {
1686 u8 frame_count; /* 1 no aggregation, >1 aggregation */
1687 u8 bt_kill_count; /* # blocked by bluetooth (unused for agg) */
1688 u8 failure_rts; /* # failures due to unsuccessful RTS */
1689 u8 failure_frame; /* # failures due to no ACK (unused for agg) */
1690
1691 /* For non-agg: Rate at which frame was successful.
1692 * For agg: Rate at which all frames were transmitted. */
1693 __le32 rate_n_flags; /* RATE_MCS_* */
1694
1695 /* For non-agg: RTS + CTS + frame tx attempts time + ACK.
1696 * For agg: RTS + CTS + aggregation tx time + block-ack time. */
1697 __le16 wireless_media_time; /* uSecs */
1698
1699 __le16 reserved;
1700 __le32 pa_power1; /* RF power amplifier measurement (not used) */
1701 __le32 pa_power2;
1702
1703 /*
1704 * For non-agg: frame status TX_STATUS_*
1705 * For agg: status of 1st frame, AGG_TX_STATE_*; other frame status
1706 * fields follow this one, up to frame_count.
1707 * Bit fields:
1708 * 11- 0: AGG_TX_STATE_* status code
1709 * 15-12: Retry count for 1st frame in aggregation (retries
1710 * occur if tx failed for this frame when it was a
1711 * member of a previous aggregation block). If rate
1712 * scaling is used, retry count indicates the rate
1713 * table entry used for all frames in the new agg.
1714 * 31-16: Sequence # for this frame's Tx cmd (not SSN!)
1715 */
1716 union {
1717 __le32 status;
1718 struct agg_tx_status agg_status[0]; /* for each agg frame */
1719 } u;
1720} __packed;
1721
1722/*
1723 * N_COMPRESSED_BA = 0xc5 (response only, not a command)
1724 *
1725 * Reports Block-Acknowledge from recipient station
1726 */
1727struct il_compressed_ba_resp {
1728 __le32 sta_addr_lo32;
1729 __le16 sta_addr_hi16;
1730 __le16 reserved;
1731
1732 /* Index of recipient (BA-sending) station in uCode's station table */
1733 u8 sta_id;
1734 u8 tid;
1735 __le16 seq_ctl;
1736 __le64 bitmap;
1737 __le16 scd_flow;
1738 __le16 scd_ssn;
1739} __packed;
1740
1741/*
1742 * C_TX_PWR_TBL = 0x97 (command, has simple generic response)
1743 *
1744 * See details under "TXPOWER" in 4965.h.
1745 */
1746
1747struct il3945_txpowertable_cmd {
1748 u8 band; /* 0: 5 GHz, 1: 2.4 GHz */
1749 u8 reserved;
1750 __le16 channel;
1751 struct il3945_power_per_rate power[IL_MAX_RATES];
1752} __packed;
1753
1754struct il4965_txpowertable_cmd {
1755 u8 band; /* 0: 5 GHz, 1: 2.4 GHz */
1756 u8 reserved;
1757 __le16 channel;
1758 struct il4965_tx_power_db tx_power;
1759} __packed;
1760
1761/**
1762 * struct il3945_rate_scaling_cmd - Rate Scaling Command & Response
1763 *
1764 * C_RATE_SCALE = 0x47 (command, has simple generic response)
1765 *
1766 * NOTE: The table of rates passed to the uCode via the
1767 * RATE_SCALE command sets up the corresponding order of
1768 * rates used for all related commands, including rate
1769 * masks, etc.
1770 *
1771 * For example, if you set 9MB (PLCP 0x0f) as the first
1772 * rate in the rate table, the bit mask for that rate
1773 * when passed through ofdm_basic_rates on the C_RXON
1774 * command would be bit 0 (1 << 0)
1775 */
1776struct il3945_rate_scaling_info {
1777 __le16 rate_n_flags;
1778 u8 try_cnt;
1779 u8 next_rate_idx;
1780} __packed;
1781
1782struct il3945_rate_scaling_cmd {
1783 u8 table_id;
1784 u8 reserved[3];
1785 struct il3945_rate_scaling_info table[IL_MAX_RATES];
1786} __packed;
1787
1788/*RS_NEW_API: only TLC_RTS remains and moved to bit 0 */
1789#define LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK (1 << 0)
1790
1791/* # of EDCA prioritized tx fifos */
1792#define LINK_QUAL_AC_NUM AC_NUM
1793
1794/* # entries in rate scale table to support Tx retries */
1795#define LINK_QUAL_MAX_RETRY_NUM 16
1796
1797/* Tx antenna selection values */
1798#define LINK_QUAL_ANT_A_MSK (1 << 0)
1799#define LINK_QUAL_ANT_B_MSK (1 << 1)
1800#define LINK_QUAL_ANT_MSK (LINK_QUAL_ANT_A_MSK|LINK_QUAL_ANT_B_MSK)
1801
1802/**
1803 * struct il_link_qual_general_params
1804 *
1805 * Used in C_TX_LINK_QUALITY_CMD
1806 */
1807struct il_link_qual_general_params {
1808 u8 flags;
1809
1810 /* No entries at or above this (driver chosen) idx contain MIMO */
1811 u8 mimo_delimiter;
1812
1813 /* Best single antenna to use for single stream (legacy, SISO). */
1814 u8 single_stream_ant_msk; /* LINK_QUAL_ANT_* */
1815
1816 /* Best antennas to use for MIMO (unused for 4965, assumes both). */
1817 u8 dual_stream_ant_msk; /* LINK_QUAL_ANT_* */
1818
1819 /*
1820 * If driver needs to use different initial rates for different
1821 * EDCA QOS access categories (as implemented by tx fifos 0-3),
1822 * this table will set that up, by indicating the idxes in the
1823 * rs_table[LINK_QUAL_MAX_RETRY_NUM] rate table at which to start.
1824 * Otherwise, driver should set all entries to 0.
1825 *
1826 * Entry usage:
1827 * 0 = Background, 1 = Best Effort (normal), 2 = Video, 3 = Voice
1828 * TX FIFOs above 3 use same value (typically 0) as TX FIFO 3.
1829 */
1830 u8 start_rate_idx[LINK_QUAL_AC_NUM];
1831} __packed;
1832
1833#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) /* 4 milliseconds */
1834#define LINK_QUAL_AGG_TIME_LIMIT_MAX (8000)
1835#define LINK_QUAL_AGG_TIME_LIMIT_MIN (100)
1836
1837#define LINK_QUAL_AGG_DISABLE_START_DEF (3)
1838#define LINK_QUAL_AGG_DISABLE_START_MAX (255)
1839#define LINK_QUAL_AGG_DISABLE_START_MIN (0)
1840
1841#define LINK_QUAL_AGG_FRAME_LIMIT_DEF (31)
1842#define LINK_QUAL_AGG_FRAME_LIMIT_MAX (63)
1843#define LINK_QUAL_AGG_FRAME_LIMIT_MIN (0)
1844
1845/**
1846 * struct il_link_qual_agg_params
1847 *
1848 * Used in C_TX_LINK_QUALITY_CMD
1849 */
1850struct il_link_qual_agg_params {
1851
1852 /*
1853 *Maximum number of uSec in aggregation.
1854 * default set to 4000 (4 milliseconds) if not configured in .cfg
1855 */
1856 __le16 agg_time_limit;
1857
1858 /*
1859 * Number of Tx retries allowed for a frame, before that frame will
1860 * no longer be considered for the start of an aggregation sequence
1861 * (scheduler will then try to tx it as single frame).
1862 * Driver should set this to 3.
1863 */
1864 u8 agg_dis_start_th;
1865
1866 /*
1867 * Maximum number of frames in aggregation.
1868 * 0 = no limit (default). 1 = no aggregation.
1869 * Other values = max # frames in aggregation.
1870 */
1871 u8 agg_frame_cnt_limit;
1872
1873 __le32 reserved;
1874} __packed;
1875
1876/*
1877 * C_TX_LINK_QUALITY_CMD = 0x4e (command, has simple generic response)
1878 *
1879 * For 4965 devices only; 3945 uses C_RATE_SCALE.
1880 *
1881 * Each station in the 4965 device's internal station table has its own table
1882 * of 16
1883 * Tx rates and modulation modes (e.g. legacy/SISO/MIMO) for retrying Tx when
1884 * an ACK is not received. This command replaces the entire table for
1885 * one station.
1886 *
1887 * NOTE: Station must already be in 4965 device's station table.
1888 * Use C_ADD_STA.
1889 *
1890 * The rate scaling procedures described below work well. Of course, other
1891 * procedures are possible, and may work better for particular environments.
1892 *
1893 *
1894 * FILLING THE RATE TBL
1895 *
1896 * Given a particular initial rate and mode, as determined by the rate
1897 * scaling algorithm described below, the Linux driver uses the following
1898 * formula to fill the rs_table[LINK_QUAL_MAX_RETRY_NUM] rate table in the
1899 * Link Quality command:
1900 *
1901 *
1902 * 1) If using High-throughput (HT) (SISO or MIMO) initial rate:
1903 * a) Use this same initial rate for first 3 entries.
1904 * b) Find next lower available rate using same mode (SISO or MIMO),
1905 * use for next 3 entries. If no lower rate available, switch to
1906 * legacy mode (no HT40 channel, no MIMO, no short guard interval).
1907 * c) If using MIMO, set command's mimo_delimiter to number of entries
1908 * using MIMO (3 or 6).
1909 * d) After trying 2 HT rates, switch to legacy mode (no HT40 channel,
1910 * no MIMO, no short guard interval), at the next lower bit rate
1911 * (e.g. if second HT bit rate was 54, try 48 legacy), and follow
1912 * legacy procedure for remaining table entries.
1913 *
1914 * 2) If using legacy initial rate:
1915 * a) Use the initial rate for only one entry.
1916 * b) For each following entry, reduce the rate to next lower available
1917 * rate, until reaching the lowest available rate.
1918 * c) When reducing rate, also switch antenna selection.
1919 * d) Once lowest available rate is reached, repeat this rate until
1920 * rate table is filled (16 entries), switching antenna each entry.
1921 *
1922 *
1923 * ACCUMULATING HISTORY
1924 *
1925 * The rate scaling algorithm for 4965 devices, as implemented in Linux driver,
1926 * uses two sets of frame Tx success history: One for the current/active
1927 * modulation mode, and one for a speculative/search mode that is being
1928 * attempted. If the speculative mode turns out to be more effective (i.e.
1929 * actual transfer rate is better), then the driver continues to use the
1930 * speculative mode as the new current active mode.
1931 *
1932 * Each history set contains, separately for each possible rate, data for a
1933 * sliding win of the 62 most recent tx attempts at that rate. The data
1934 * includes a shifting bitmap of success(1)/failure(0), and sums of successful
1935 * and attempted frames, from which the driver can additionally calculate a
1936 * success ratio (success / attempted) and number of failures
1937 * (attempted - success), and control the size of the win (attempted).
1938 * The driver uses the bit map to remove successes from the success sum, as
1939 * the oldest tx attempts fall out of the win.
1940 *
1941 * When the 4965 device makes multiple tx attempts for a given frame, each
1942 * attempt might be at a different rate, and have different modulation
1943 * characteristics (e.g. antenna, fat channel, short guard interval), as set
1944 * up in the rate scaling table in the Link Quality command. The driver must
1945 * determine which rate table entry was used for each tx attempt, to determine
1946 * which rate-specific history to update, and record only those attempts that
1947 * match the modulation characteristics of the history set.
1948 *
1949 * When using block-ack (aggregation), all frames are transmitted at the same
1950 * rate, since there is no per-attempt acknowledgment from the destination
1951 * station. The Tx response struct il_tx_resp indicates the Tx rate in
1952 * rate_n_flags field. After receiving a block-ack, the driver can update
1953 * history for the entire block all at once.
1954 *
1955 *
1956 * FINDING BEST STARTING RATE:
1957 *
1958 * When working with a selected initial modulation mode (see below), the
1959 * driver attempts to find a best initial rate. The initial rate is the
1960 * first entry in the Link Quality command's rate table.
1961 *
1962 * 1) Calculate actual throughput (success ratio * expected throughput, see
1963 * table below) for current initial rate. Do this only if enough frames
1964 * have been attempted to make the value meaningful: at least 6 failed
1965 * tx attempts, or at least 8 successes. If not enough, don't try rate
1966 * scaling yet.
1967 *
1968 * 2) Find available rates adjacent to current initial rate. Available means:
1969 * a) supported by hardware &&
1970 * b) supported by association &&
1971 * c) within any constraints selected by user
1972 *
1973 * 3) Gather measured throughputs for adjacent rates. These might not have
1974 * enough history to calculate a throughput. That's okay, we might try
1975 * using one of them anyway!
1976 *
1977 * 4) Try decreasing rate if, for current rate:
1978 * a) success ratio is < 15% ||
1979 * b) lower adjacent rate has better measured throughput ||
1980 * c) higher adjacent rate has worse throughput, and lower is unmeasured
1981 *
1982 * As a sanity check, if decrease was determined above, leave rate
1983 * unchanged if:
1984 * a) lower rate unavailable
1985 * b) success ratio at current rate > 85% (very good)
1986 * c) current measured throughput is better than expected throughput
1987 * of lower rate (under perfect 100% tx conditions, see table below)
1988 *
1989 * 5) Try increasing rate if, for current rate:
1990 * a) success ratio is < 15% ||
1991 * b) both adjacent rates' throughputs are unmeasured (try it!) ||
1992 * b) higher adjacent rate has better measured throughput ||
1993 * c) lower adjacent rate has worse throughput, and higher is unmeasured
1994 *
1995 * As a sanity check, if increase was determined above, leave rate
1996 * unchanged if:
1997 * a) success ratio at current rate < 70%. This is not particularly
1998 * good performance; higher rate is sure to have poorer success.
1999 *
2000 * 6) Re-evaluate the rate after each tx frame. If working with block-
2001 * acknowledge, history and stats may be calculated for the entire
2002 * block (including prior history that fits within the history wins),
2003 * before re-evaluation.
2004 *
2005 * FINDING BEST STARTING MODULATION MODE:
2006 *
2007 * After working with a modulation mode for a "while" (and doing rate scaling),
2008 * the driver searches for a new initial mode in an attempt to improve
2009 * throughput. The "while" is measured by numbers of attempted frames:
2010 *
2011 * For legacy mode, search for new mode after:
2012 * 480 successful frames, or 160 failed frames
2013 * For high-throughput modes (SISO or MIMO), search for new mode after:
2014 * 4500 successful frames, or 400 failed frames
2015 *
2016 * Mode switch possibilities are (3 for each mode):
2017 *
2018 * For legacy:
2019 * Change antenna, try SISO (if HT association), try MIMO (if HT association)
2020 * For SISO:
2021 * Change antenna, try MIMO, try shortened guard interval (SGI)
2022 * For MIMO:
2023 * Try SISO antenna A, SISO antenna B, try shortened guard interval (SGI)
2024 *
2025 * When trying a new mode, use the same bit rate as the old/current mode when
2026 * trying antenna switches and shortened guard interval. When switching to
2027 * SISO from MIMO or legacy, or to MIMO from SISO or legacy, use a rate
2028 * for which the expected throughput (under perfect conditions) is about the
2029 * same or slightly better than the actual measured throughput delivered by
2030 * the old/current mode.
2031 *
2032 * Actual throughput can be estimated by multiplying the expected throughput
2033 * by the success ratio (successful / attempted tx frames). Frame size is
2034 * not considered in this calculation; it assumes that frame size will average
2035 * out to be fairly consistent over several samples. The following are
2036 * metric values for expected throughput assuming 100% success ratio.
2037 * Only G band has support for CCK rates:
2038 *
2039 * RATE: 1 2 5 11 6 9 12 18 24 36 48 54 60
2040 *
2041 * G: 7 13 35 58 40 57 72 98 121 154 177 186 186
2042 * A: 0 0 0 0 40 57 72 98 121 154 177 186 186
2043 * SISO 20MHz: 0 0 0 0 42 42 76 102 124 159 183 193 202
2044 * SGI SISO 20MHz: 0 0 0 0 46 46 82 110 132 168 192 202 211
2045 * MIMO 20MHz: 0 0 0 0 74 74 123 155 179 214 236 244 251
2046 * SGI MIMO 20MHz: 0 0 0 0 81 81 131 164 188 222 243 251 257
2047 * SISO 40MHz: 0 0 0 0 77 77 127 160 184 220 242 250 257
2048 * SGI SISO 40MHz: 0 0 0 0 83 83 135 169 193 229 250 257 264
2049 * MIMO 40MHz: 0 0 0 0 123 123 182 214 235 264 279 285 289
2050 * SGI MIMO 40MHz: 0 0 0 0 131 131 191 222 242 270 284 289 293
2051 *
2052 * After the new mode has been tried for a short while (minimum of 6 failed
2053 * frames or 8 successful frames), compare success ratio and actual throughput
2054 * estimate of the new mode with the old. If either is better with the new
2055 * mode, continue to use the new mode.
2056 *
2057 * Continue comparing modes until all 3 possibilities have been tried.
2058 * If moving from legacy to HT, try all 3 possibilities from the new HT
2059 * mode. After trying all 3, a best mode is found. Continue to use this mode
2060 * for the longer "while" described above (e.g. 480 successful frames for
2061 * legacy), and then repeat the search process.
2062 *
2063 */
2064struct il_link_quality_cmd {
2065
2066 /* Index of destination/recipient station in uCode's station table */
2067 u8 sta_id;
2068 u8 reserved1;
2069 __le16 control; /* not used */
2070 struct il_link_qual_general_params general_params;
2071 struct il_link_qual_agg_params agg_params;
2072
2073 /*
2074 * Rate info; when using rate-scaling, Tx command's initial_rate_idx
2075 * specifies 1st Tx rate attempted, via idx into this table.
2076 * 4965 devices works its way through table when retrying Tx.
2077 */
2078 struct {
2079 __le32 rate_n_flags; /* RATE_MCS_*, RATE_* */
2080 } rs_table[LINK_QUAL_MAX_RETRY_NUM];
2081 __le32 reserved2;
2082} __packed;
2083
2084/*
2085 * BT configuration enable flags:
2086 * bit 0 - 1: BT channel announcement enabled
2087 * 0: disable
2088 * bit 1 - 1: priority of BT device enabled
2089 * 0: disable
2090 */
2091#define BT_COEX_DISABLE (0x0)
2092#define BT_ENABLE_CHANNEL_ANNOUNCE BIT(0)
2093#define BT_ENABLE_PRIORITY BIT(1)
2094
2095#define BT_COEX_ENABLE (BT_ENABLE_CHANNEL_ANNOUNCE | BT_ENABLE_PRIORITY)
2096
2097#define BT_LEAD_TIME_DEF (0x1E)
2098
2099#define BT_MAX_KILL_DEF (0x5)
2100
2101/*
2102 * C_BT_CONFIG = 0x9b (command, has simple generic response)
2103 *
2104 * 3945 and 4965 devices support hardware handshake with Bluetooth device on
2105 * same platform. Bluetooth device alerts wireless device when it will Tx;
2106 * wireless device can delay or kill its own Tx to accommodate.
2107 */
2108struct il_bt_cmd {
2109 u8 flags;
2110 u8 lead_time;
2111 u8 max_kill;
2112 u8 reserved;
2113 __le32 kill_ack_mask;
2114 __le32 kill_cts_mask;
2115} __packed;
2116
2117/******************************************************************************
2118 * (6)
2119 * Spectrum Management (802.11h) Commands, Responses, Notifications:
2120 *
2121 *****************************************************************************/
2122
2123/*
2124 * Spectrum Management
2125 */
2126#define MEASUREMENT_FILTER_FLAG (RXON_FILTER_PROMISC_MSK | \
2127 RXON_FILTER_CTL2HOST_MSK | \
2128 RXON_FILTER_ACCEPT_GRP_MSK | \
2129 RXON_FILTER_DIS_DECRYPT_MSK | \
2130 RXON_FILTER_DIS_GRP_DECRYPT_MSK | \
2131 RXON_FILTER_ASSOC_MSK | \
2132 RXON_FILTER_BCON_AWARE_MSK)
2133
2134struct il_measure_channel {
2135 __le32 duration; /* measurement duration in extended beacon
2136 * format */
2137 u8 channel; /* channel to measure */
2138 u8 type; /* see enum il_measure_type */
2139 __le16 reserved;
2140} __packed;
2141
2142/*
2143 * C_SPECTRUM_MEASUREMENT = 0x74 (command)
2144 */
2145struct il_spectrum_cmd {
2146 __le16 len; /* number of bytes starting from token */
2147 u8 token; /* token id */
2148 u8 id; /* measurement id -- 0 or 1 */
2149 u8 origin; /* 0 = TGh, 1 = other, 2 = TGk */
2150 u8 periodic; /* 1 = periodic */
2151 __le16 path_loss_timeout;
2152 __le32 start_time; /* start time in extended beacon format */
2153 __le32 reserved2;
2154 __le32 flags; /* rxon flags */
2155 __le32 filter_flags; /* rxon filter flags */
2156 __le16 channel_count; /* minimum 1, maximum 10 */
2157 __le16 reserved3;
2158 struct il_measure_channel channels[10];
2159} __packed;
2160
2161/*
2162 * C_SPECTRUM_MEASUREMENT = 0x74 (response)
2163 */
2164struct il_spectrum_resp {
2165 u8 token;
2166 u8 id; /* id of the prior command replaced, or 0xff */
2167 __le16 status; /* 0 - command will be handled
2168 * 1 - cannot handle (conflicts with another
2169 * measurement) */
2170} __packed;
2171
2172enum il_measurement_state {
2173 IL_MEASUREMENT_START = 0,
2174 IL_MEASUREMENT_STOP = 1,
2175};
2176
2177enum il_measurement_status {
2178 IL_MEASUREMENT_OK = 0,
2179 IL_MEASUREMENT_CONCURRENT = 1,
2180 IL_MEASUREMENT_CSA_CONFLICT = 2,
2181 IL_MEASUREMENT_TGH_CONFLICT = 3,
2182 /* 4-5 reserved */
2183 IL_MEASUREMENT_STOPPED = 6,
2184 IL_MEASUREMENT_TIMEOUT = 7,
2185 IL_MEASUREMENT_PERIODIC_FAILED = 8,
2186};
2187
2188#define NUM_ELEMENTS_IN_HISTOGRAM 8
2189
2190struct il_measurement_histogram {
2191 __le32 ofdm[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 0.8usec counts */
2192 __le32 cck[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 1usec counts */
2193} __packed;
2194
2195/* clear channel availability counters */
2196struct il_measurement_cca_counters {
2197 __le32 ofdm;
2198 __le32 cck;
2199} __packed;
2200
2201enum il_measure_type {
2202 IL_MEASURE_BASIC = (1 << 0),
2203 IL_MEASURE_CHANNEL_LOAD = (1 << 1),
2204 IL_MEASURE_HISTOGRAM_RPI = (1 << 2),
2205 IL_MEASURE_HISTOGRAM_NOISE = (1 << 3),
2206 IL_MEASURE_FRAME = (1 << 4),
2207 /* bits 5:6 are reserved */
2208 IL_MEASURE_IDLE = (1 << 7),
2209};
2210
2211/*
2212 * N_SPECTRUM_MEASUREMENT = 0x75 (notification only, not a command)
2213 */
2214struct il_spectrum_notification {
2215 u8 id; /* measurement id -- 0 or 1 */
2216 u8 token;
2217 u8 channel_idx; /* idx in measurement channel list */
2218 u8 state; /* 0 - start, 1 - stop */
2219 __le32 start_time; /* lower 32-bits of TSF */
2220 u8 band; /* 0 - 5.2GHz, 1 - 2.4GHz */
2221 u8 channel;
2222 u8 type; /* see enum il_measurement_type */
2223 u8 reserved1;
2224 /* NOTE: cca_ofdm, cca_cck, basic_type, and histogram are only only
2225 * valid if applicable for measurement type requested. */
2226 __le32 cca_ofdm; /* cca fraction time in 40Mhz clock periods */
2227 __le32 cca_cck; /* cca fraction time in 44Mhz clock periods */
2228 __le32 cca_time; /* channel load time in usecs */
2229 u8 basic_type; /* 0 - bss, 1 - ofdm preamble, 2 -
2230 * unidentified */
2231 u8 reserved2[3];
2232 struct il_measurement_histogram histogram;
2233 __le32 stop_time; /* lower 32-bits of TSF */
2234 __le32 status; /* see il_measurement_status */
2235} __packed;
2236
2237/******************************************************************************
2238 * (7)
2239 * Power Management Commands, Responses, Notifications:
2240 *
2241 *****************************************************************************/
2242
2243/**
2244 * struct il_powertable_cmd - Power Table Command
2245 * @flags: See below:
2246 *
2247 * C_POWER_TBL = 0x77 (command, has simple generic response)
2248 *
2249 * PM allow:
2250 * bit 0 - '0' Driver not allow power management
2251 * '1' Driver allow PM (use rest of parameters)
2252 *
2253 * uCode send sleep notifications:
2254 * bit 1 - '0' Don't send sleep notification
2255 * '1' send sleep notification (SEND_PM_NOTIFICATION)
2256 *
2257 * Sleep over DTIM
2258 * bit 2 - '0' PM have to walk up every DTIM
2259 * '1' PM could sleep over DTIM till listen Interval.
2260 *
2261 * PCI power managed
2262 * bit 3 - '0' (PCI_CFG_LINK_CTRL & 0x1)
2263 * '1' !(PCI_CFG_LINK_CTRL & 0x1)
2264 *
2265 * Fast PD
2266 * bit 4 - '1' Put radio to sleep when receiving frame for others
2267 *
2268 * Force sleep Modes
2269 * bit 31/30- '00' use both mac/xtal sleeps
2270 * '01' force Mac sleep
2271 * '10' force xtal sleep
2272 * '11' Illegal set
2273 *
2274 * NOTE: if sleep_interval[SLEEP_INTRVL_TBL_SIZE-1] > DTIM period then
2275 * ucode assume sleep over DTIM is allowed and we don't need to wake up
2276 * for every DTIM.
2277 */
2278#define IL_POWER_VEC_SIZE 5
2279
2280#define IL_POWER_DRIVER_ALLOW_SLEEP_MSK cpu_to_le16(BIT(0))
2281#define IL_POWER_PCI_PM_MSK cpu_to_le16(BIT(3))
2282
2283struct il3945_powertable_cmd {
2284 __le16 flags;
2285 u8 reserved[2];
2286 __le32 rx_data_timeout;
2287 __le32 tx_data_timeout;
2288 __le32 sleep_interval[IL_POWER_VEC_SIZE];
2289} __packed;
2290
2291struct il_powertable_cmd {
2292 __le16 flags;
2293 u8 keep_alive_seconds; /* 3945 reserved */
2294 u8 debug_flags; /* 3945 reserved */
2295 __le32 rx_data_timeout;
2296 __le32 tx_data_timeout;
2297 __le32 sleep_interval[IL_POWER_VEC_SIZE];
2298 __le32 keep_alive_beacons;
2299} __packed;
2300
2301/*
2302 * N_PM_SLEEP = 0x7A (notification only, not a command)
2303 * all devices identical.
2304 */
2305struct il_sleep_notification {
2306 u8 pm_sleep_mode;
2307 u8 pm_wakeup_src;
2308 __le16 reserved;
2309 __le32 sleep_time;
2310 __le32 tsf_low;
2311 __le32 bcon_timer;
2312} __packed;
2313
2314/* Sleep states. all devices identical. */
2315enum {
2316 IL_PM_NO_SLEEP = 0,
2317 IL_PM_SLP_MAC = 1,
2318 IL_PM_SLP_FULL_MAC_UNASSOCIATE = 2,
2319 IL_PM_SLP_FULL_MAC_CARD_STATE = 3,
2320 IL_PM_SLP_PHY = 4,
2321 IL_PM_SLP_REPENT = 5,
2322 IL_PM_WAKEUP_BY_TIMER = 6,
2323 IL_PM_WAKEUP_BY_DRIVER = 7,
2324 IL_PM_WAKEUP_BY_RFKILL = 8,
2325 /* 3 reserved */
2326 IL_PM_NUM_OF_MODES = 12,
2327};
2328
2329/*
2330 * N_CARD_STATE = 0xa1 (notification only, not a command)
2331 */
2332struct il_card_state_notif {
2333 __le32 flags;
2334} __packed;
2335
2336#define HW_CARD_DISABLED 0x01
2337#define SW_CARD_DISABLED 0x02
2338#define CT_CARD_DISABLED 0x04
2339#define RXON_CARD_DISABLED 0x10
2340
2341struct il_ct_kill_config {
2342 __le32 reserved;
2343 __le32 critical_temperature_M;
2344 __le32 critical_temperature_R;
2345} __packed;
2346
2347/******************************************************************************
2348 * (8)
2349 * Scan Commands, Responses, Notifications:
2350 *
2351 *****************************************************************************/
2352
2353#define SCAN_CHANNEL_TYPE_PASSIVE cpu_to_le32(0)
2354#define SCAN_CHANNEL_TYPE_ACTIVE cpu_to_le32(1)
2355
2356/**
2357 * struct il_scan_channel - entry in C_SCAN channel table
2358 *
2359 * One for each channel in the scan list.
2360 * Each channel can independently select:
2361 * 1) SSID for directed active scans
2362 * 2) Txpower setting (for rate specified within Tx command)
2363 * 3) How long to stay on-channel (behavior may be modified by quiet_time,
2364 * quiet_plcp_th, good_CRC_th)
2365 *
2366 * To avoid uCode errors, make sure the following are true (see comments
2367 * under struct il_scan_cmd about max_out_time and quiet_time):
2368 * 1) If using passive_dwell (i.e. passive_dwell != 0):
2369 * active_dwell <= passive_dwell (< max_out_time if max_out_time != 0)
2370 * 2) quiet_time <= active_dwell
2371 * 3) If restricting off-channel time (i.e. max_out_time !=0):
2372 * passive_dwell < max_out_time
2373 * active_dwell < max_out_time
2374 */
2375struct il3945_scan_channel {
2376 /*
2377 * type is defined as:
2378 * 0:0 1 = active, 0 = passive
2379 * 1:4 SSID direct bit map; if a bit is set, then corresponding
2380 * SSID IE is transmitted in probe request.
2381 * 5:7 reserved
2382 */
2383 u8 type;
2384 u8 channel; /* band is selected by il3945_scan_cmd "flags" field */
2385 struct il3945_tx_power tpc;
2386 __le16 active_dwell; /* in 1024-uSec TU (time units), typ 5-50 */
2387 __le16 passive_dwell; /* in 1024-uSec TU (time units), typ 20-500 */
2388} __packed;
2389
2390/* set number of direct probes u8 type */
2391#define IL39_SCAN_PROBE_MASK(n) ((BIT(n) | (BIT(n) - BIT(1))))
2392
2393struct il_scan_channel {
2394 /*
2395 * type is defined as:
2396 * 0:0 1 = active, 0 = passive
2397 * 1:20 SSID direct bit map; if a bit is set, then corresponding
2398 * SSID IE is transmitted in probe request.
2399 * 21:31 reserved
2400 */
2401 __le32 type;
2402 __le16 channel; /* band is selected by il_scan_cmd "flags" field */
2403 u8 tx_gain; /* gain for analog radio */
2404 u8 dsp_atten; /* gain for DSP */
2405 __le16 active_dwell; /* in 1024-uSec TU (time units), typ 5-50 */
2406 __le16 passive_dwell; /* in 1024-uSec TU (time units), typ 20-500 */
2407} __packed;
2408
2409/* set number of direct probes __le32 type */
2410#define IL_SCAN_PROBE_MASK(n) cpu_to_le32((BIT(n) | (BIT(n) - BIT(1))))
2411
2412/**
2413 * struct il_ssid_ie - directed scan network information element
2414 *
2415 * Up to 20 of these may appear in C_SCAN (Note: Only 4 are in
2416 * 3945 SCAN api), selected by "type" bit field in struct il_scan_channel;
2417 * each channel may select different ssids from among the 20 (4) entries.
2418 * SSID IEs get transmitted in reverse order of entry.
2419 */
2420struct il_ssid_ie {
2421 u8 id;
2422 u8 len;
2423 u8 ssid[32];
2424} __packed;
2425
2426#define PROBE_OPTION_MAX_3945 4
2427#define PROBE_OPTION_MAX 20
2428#define TX_CMD_LIFE_TIME_INFINITE cpu_to_le32(0xFFFFFFFF)
2429#define IL_GOOD_CRC_TH_DISABLED 0
2430#define IL_GOOD_CRC_TH_DEFAULT cpu_to_le16(1)
2431#define IL_GOOD_CRC_TH_NEVER cpu_to_le16(0xffff)
2432#define IL_MAX_SCAN_SIZE 1024
2433#define IL_MAX_CMD_SIZE 4096
2434
2435/*
2436 * C_SCAN = 0x80 (command)
2437 *
2438 * The hardware scan command is very powerful; the driver can set it up to
2439 * maintain (relatively) normal network traffic while doing a scan in the
2440 * background. The max_out_time and suspend_time control the ratio of how
2441 * long the device stays on an associated network channel ("service channel")
2442 * vs. how long it's away from the service channel, i.e. tuned to other channels
2443 * for scanning.
2444 *
2445 * max_out_time is the max time off-channel (in usec), and suspend_time
2446 * is how long (in "extended beacon" format) that the scan is "suspended"
2447 * after returning to the service channel. That is, suspend_time is the
2448 * time that we stay on the service channel, doing normal work, between
2449 * scan segments. The driver may set these parameters differently to support
2450 * scanning when associated vs. not associated, and light vs. heavy traffic
2451 * loads when associated.
2452 *
2453 * After receiving this command, the device's scan engine does the following;
2454 *
2455 * 1) Sends SCAN_START notification to driver
2456 * 2) Checks to see if it has time to do scan for one channel
2457 * 3) Sends NULL packet, with power-save (PS) bit set to 1,
2458 * to tell AP that we're going off-channel
2459 * 4) Tunes to first channel in scan list, does active or passive scan
2460 * 5) Sends SCAN_RESULT notification to driver
2461 * 6) Checks to see if it has time to do scan on *next* channel in list
2462 * 7) Repeats 4-6 until it no longer has time to scan the next channel
2463 * before max_out_time expires
2464 * 8) Returns to service channel
2465 * 9) Sends NULL packet with PS=0 to tell AP that we're back
2466 * 10) Stays on service channel until suspend_time expires
2467 * 11) Repeats entire process 2-10 until list is complete
2468 * 12) Sends SCAN_COMPLETE notification
2469 *
2470 * For fast, efficient scans, the scan command also has support for staying on
2471 * a channel for just a short time, if doing active scanning and getting no
2472 * responses to the transmitted probe request. This time is controlled by
2473 * quiet_time, and the number of received packets below which a channel is
2474 * considered "quiet" is controlled by quiet_plcp_threshold.
2475 *
2476 * For active scanning on channels that have regulatory restrictions against
2477 * blindly transmitting, the scan can listen before transmitting, to make sure
2478 * that there is already legitimate activity on the channel. If enough
2479 * packets are cleanly received on the channel (controlled by good_CRC_th,
2480 * typical value 1), the scan engine starts transmitting probe requests.
2481 *
2482 * Driver must use separate scan commands for 2.4 vs. 5 GHz bands.
2483 *
2484 * To avoid uCode errors, see timing restrictions described under
2485 * struct il_scan_channel.
2486 */
2487
2488struct il3945_scan_cmd {
2489 __le16 len;
2490 u8 reserved0;
2491 u8 channel_count; /* # channels in channel list */
2492 __le16 quiet_time; /* dwell only this # millisecs on quiet channel
2493 * (only for active scan) */
2494 __le16 quiet_plcp_th; /* quiet chnl is < this # pkts (typ. 1) */
2495 __le16 good_CRC_th; /* passive -> active promotion threshold */
2496 __le16 reserved1;
2497 __le32 max_out_time; /* max usec to be away from associated (service)
2498 * channel */
2499 __le32 suspend_time; /* pause scan this long (in "extended beacon
2500 * format") when returning to service channel:
2501 * 3945; 31:24 # beacons, 19:0 additional usec,
2502 * 4965; 31:22 # beacons, 21:0 additional usec.
2503 */
2504 __le32 flags; /* RXON_FLG_* */
2505 __le32 filter_flags; /* RXON_FILTER_* */
2506
2507 /* For active scans (set to all-0s for passive scans).
2508 * Does not include payload. Must specify Tx rate; no rate scaling. */
2509 struct il3945_tx_cmd tx_cmd;
2510
2511 /* For directed active scans (set to all-0s otherwise) */
2512 struct il_ssid_ie direct_scan[PROBE_OPTION_MAX_3945];
2513
2514 /*
2515 * Probe request frame, followed by channel list.
2516 *
2517 * Size of probe request frame is specified by byte count in tx_cmd.
2518 * Channel list follows immediately after probe request frame.
2519 * Number of channels in list is specified by channel_count.
2520 * Each channel in list is of type:
2521 *
2522 * struct il3945_scan_channel channels[0];
2523 *
2524 * NOTE: Only one band of channels can be scanned per pass. You
2525 * must not mix 2.4GHz channels and 5.2GHz channels, and you must wait
2526 * for one scan to complete (i.e. receive N_SCAN_COMPLETE)
2527 * before requesting another scan.
2528 */
2529 u8 data[0];
2530} __packed;
2531
2532struct il_scan_cmd {
2533 __le16 len;
2534 u8 reserved0;
2535 u8 channel_count; /* # channels in channel list */
2536 __le16 quiet_time; /* dwell only this # millisecs on quiet channel
2537 * (only for active scan) */
2538 __le16 quiet_plcp_th; /* quiet chnl is < this # pkts (typ. 1) */
2539 __le16 good_CRC_th; /* passive -> active promotion threshold */
2540 __le16 rx_chain; /* RXON_RX_CHAIN_* */
2541 __le32 max_out_time; /* max usec to be away from associated (service)
2542 * channel */
2543 __le32 suspend_time; /* pause scan this long (in "extended beacon
2544 * format") when returning to service chnl:
2545 * 3945; 31:24 # beacons, 19:0 additional usec,
2546 * 4965; 31:22 # beacons, 21:0 additional usec.
2547 */
2548 __le32 flags; /* RXON_FLG_* */
2549 __le32 filter_flags; /* RXON_FILTER_* */
2550
2551 /* For active scans (set to all-0s for passive scans).
2552 * Does not include payload. Must specify Tx rate; no rate scaling. */
2553 struct il_tx_cmd tx_cmd;
2554
2555 /* For directed active scans (set to all-0s otherwise) */
2556 struct il_ssid_ie direct_scan[PROBE_OPTION_MAX];
2557
2558 /*
2559 * Probe request frame, followed by channel list.
2560 *
2561 * Size of probe request frame is specified by byte count in tx_cmd.
2562 * Channel list follows immediately after probe request frame.
2563 * Number of channels in list is specified by channel_count.
2564 * Each channel in list is of type:
2565 *
2566 * struct il_scan_channel channels[0];
2567 *
2568 * NOTE: Only one band of channels can be scanned per pass. You
2569 * must not mix 2.4GHz channels and 5.2GHz channels, and you must wait
2570 * for one scan to complete (i.e. receive N_SCAN_COMPLETE)
2571 * before requesting another scan.
2572 */
2573 u8 data[0];
2574} __packed;
2575
2576/* Can abort will notify by complete notification with abort status. */
2577#define CAN_ABORT_STATUS cpu_to_le32(0x1)
2578/* complete notification statuses */
2579#define ABORT_STATUS 0x2
2580
2581/*
2582 * C_SCAN = 0x80 (response)
2583 */
2584struct il_scanreq_notification {
2585 __le32 status; /* 1: okay, 2: cannot fulfill request */
2586} __packed;
2587
2588/*
2589 * N_SCAN_START = 0x82 (notification only, not a command)
2590 */
2591struct il_scanstart_notification {
2592 __le32 tsf_low;
2593 __le32 tsf_high;
2594 __le32 beacon_timer;
2595 u8 channel;
2596 u8 band;
2597 u8 reserved[2];
2598 __le32 status;
2599} __packed;
2600
2601#define SCAN_OWNER_STATUS 0x1
2602#define MEASURE_OWNER_STATUS 0x2
2603
2604#define IL_PROBE_STATUS_OK 0
2605#define IL_PROBE_STATUS_TX_FAILED BIT(0)
2606/* error statuses combined with TX_FAILED */
2607#define IL_PROBE_STATUS_FAIL_TTL BIT(1)
2608#define IL_PROBE_STATUS_FAIL_BT BIT(2)
2609
2610#define NUMBER_OF_STATS 1 /* first __le32 is good CRC */
2611/*
2612 * N_SCAN_RESULTS = 0x83 (notification only, not a command)
2613 */
2614struct il_scanresults_notification {
2615 u8 channel;
2616 u8 band;
2617 u8 probe_status;
2618 u8 num_probe_not_sent; /* not enough time to send */
2619 __le32 tsf_low;
2620 __le32 tsf_high;
2621 __le32 stats[NUMBER_OF_STATS];
2622} __packed;
2623
2624/*
2625 * N_SCAN_COMPLETE = 0x84 (notification only, not a command)
2626 */
2627struct il_scancomplete_notification {
2628 u8 scanned_channels;
2629 u8 status;
2630 u8 last_channel;
2631 __le32 tsf_low;
2632 __le32 tsf_high;
2633} __packed;
2634
2635/******************************************************************************
2636 * (9)
2637 * IBSS/AP Commands and Notifications:
2638 *
2639 *****************************************************************************/
2640
2641enum il_ibss_manager {
2642 IL_NOT_IBSS_MANAGER = 0,
2643 IL_IBSS_MANAGER = 1,
2644};
2645
2646/*
2647 * N_BEACON = 0x90 (notification only, not a command)
2648 */
2649
2650struct il3945_beacon_notif {
2651 struct il3945_tx_resp beacon_notify_hdr;
2652 __le32 low_tsf;
2653 __le32 high_tsf;
2654 __le32 ibss_mgr_status;
2655} __packed;
2656
2657struct il4965_beacon_notif {
2658 struct il4965_tx_resp beacon_notify_hdr;
2659 __le32 low_tsf;
2660 __le32 high_tsf;
2661 __le32 ibss_mgr_status;
2662} __packed;
2663
2664/*
2665 * C_TX_BEACON= 0x91 (command, has simple generic response)
2666 */
2667
2668struct il3945_tx_beacon_cmd {
2669 struct il3945_tx_cmd tx;
2670 __le16 tim_idx;
2671 u8 tim_size;
2672 u8 reserved1;
2673 struct ieee80211_hdr frame[0]; /* beacon frame */
2674} __packed;
2675
2676struct il_tx_beacon_cmd {
2677 struct il_tx_cmd tx;
2678 __le16 tim_idx;
2679 u8 tim_size;
2680 u8 reserved1;
2681 struct ieee80211_hdr frame[0]; /* beacon frame */
2682} __packed;
2683
2684/******************************************************************************
2685 * (10)
2686 * Statistics Commands and Notifications:
2687 *
2688 *****************************************************************************/
2689
2690#define IL_TEMP_CONVERT 260
2691
2692#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
2693#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
2694#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
2695
2696/* Used for passing to driver number of successes and failures per rate */
2697struct rate_histogram {
2698 union {
2699 __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS];
2700 __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS];
2701 __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS];
2702 } success;
2703 union {
2704 __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS];
2705 __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS];
2706 __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS];
2707 } failed;
2708} __packed;
2709
2710/* stats command response */
2711
2712struct iwl39_stats_rx_phy {
2713 __le32 ina_cnt;
2714 __le32 fina_cnt;
2715 __le32 plcp_err;
2716 __le32 crc32_err;
2717 __le32 overrun_err;
2718 __le32 early_overrun_err;
2719 __le32 crc32_good;
2720 __le32 false_alarm_cnt;
2721 __le32 fina_sync_err_cnt;
2722 __le32 sfd_timeout;
2723 __le32 fina_timeout;
2724 __le32 unresponded_rts;
2725 __le32 rxe_frame_limit_overrun;
2726 __le32 sent_ack_cnt;
2727 __le32 sent_cts_cnt;
2728} __packed;
2729
2730struct iwl39_stats_rx_non_phy {
2731 __le32 bogus_cts; /* CTS received when not expecting CTS */
2732 __le32 bogus_ack; /* ACK received when not expecting ACK */
2733 __le32 non_bssid_frames; /* number of frames with BSSID that
2734 * doesn't belong to the STA BSSID */
2735 __le32 filtered_frames; /* count frames that were dumped in the
2736 * filtering process */
2737 __le32 non_channel_beacons; /* beacons with our bss id but not on
2738 * our serving channel */
2739} __packed;
2740
2741struct iwl39_stats_rx {
2742 struct iwl39_stats_rx_phy ofdm;
2743 struct iwl39_stats_rx_phy cck;
2744 struct iwl39_stats_rx_non_phy general;
2745} __packed;
2746
2747struct iwl39_stats_tx {
2748 __le32 preamble_cnt;
2749 __le32 rx_detected_cnt;
2750 __le32 bt_prio_defer_cnt;
2751 __le32 bt_prio_kill_cnt;
2752 __le32 few_bytes_cnt;
2753 __le32 cts_timeout;
2754 __le32 ack_timeout;
2755 __le32 expected_ack_cnt;
2756 __le32 actual_ack_cnt;
2757} __packed;
2758
2759struct stats_dbg {
2760 __le32 burst_check;
2761 __le32 burst_count;
2762 __le32 wait_for_silence_timeout_cnt;
2763 __le32 reserved[3];
2764} __packed;
2765
2766struct iwl39_stats_div {
2767 __le32 tx_on_a;
2768 __le32 tx_on_b;
2769 __le32 exec_time;
2770 __le32 probe_time;
2771} __packed;
2772
2773struct iwl39_stats_general {
2774 __le32 temperature;
2775 struct stats_dbg dbg;
2776 __le32 sleep_time;
2777 __le32 slots_out;
2778 __le32 slots_idle;
2779 __le32 ttl_timestamp;
2780 struct iwl39_stats_div div;
2781} __packed;
2782
2783struct stats_rx_phy {
2784 __le32 ina_cnt;
2785 __le32 fina_cnt;
2786 __le32 plcp_err;
2787 __le32 crc32_err;
2788 __le32 overrun_err;
2789 __le32 early_overrun_err;
2790 __le32 crc32_good;
2791 __le32 false_alarm_cnt;
2792 __le32 fina_sync_err_cnt;
2793 __le32 sfd_timeout;
2794 __le32 fina_timeout;
2795 __le32 unresponded_rts;
2796 __le32 rxe_frame_limit_overrun;
2797 __le32 sent_ack_cnt;
2798 __le32 sent_cts_cnt;
2799 __le32 sent_ba_rsp_cnt;
2800 __le32 dsp_self_kill;
2801 __le32 mh_format_err;
2802 __le32 re_acq_main_rssi_sum;
2803 __le32 reserved3;
2804} __packed;
2805
2806struct stats_rx_ht_phy {
2807 __le32 plcp_err;
2808 __le32 overrun_err;
2809 __le32 early_overrun_err;
2810 __le32 crc32_good;
2811 __le32 crc32_err;
2812 __le32 mh_format_err;
2813 __le32 agg_crc32_good;
2814 __le32 agg_mpdu_cnt;
2815 __le32 agg_cnt;
2816 __le32 unsupport_mcs;
2817} __packed;
2818
2819#define INTERFERENCE_DATA_AVAILABLE cpu_to_le32(1)
2820
2821struct stats_rx_non_phy {
2822 __le32 bogus_cts; /* CTS received when not expecting CTS */
2823 __le32 bogus_ack; /* ACK received when not expecting ACK */
2824 __le32 non_bssid_frames; /* number of frames with BSSID that
2825 * doesn't belong to the STA BSSID */
2826 __le32 filtered_frames; /* count frames that were dumped in the
2827 * filtering process */
2828 __le32 non_channel_beacons; /* beacons with our bss id but not on
2829 * our serving channel */
2830 __le32 channel_beacons; /* beacons with our bss id and in our
2831 * serving channel */
2832 __le32 num_missed_bcon; /* number of missed beacons */
2833 __le32 adc_rx_saturation_time; /* count in 0.8us units the time the
2834 * ADC was in saturation */
2835 __le32 ina_detection_search_time; /* total time (in 0.8us) searched
2836 * for INA */
2837 __le32 beacon_silence_rssi_a; /* RSSI silence after beacon frame */
2838 __le32 beacon_silence_rssi_b; /* RSSI silence after beacon frame */
2839 __le32 beacon_silence_rssi_c; /* RSSI silence after beacon frame */
2840 __le32 interference_data_flag; /* flag for interference data
2841 * availability. 1 when data is
2842 * available. */
2843 __le32 channel_load; /* counts RX Enable time in uSec */
2844 __le32 dsp_false_alarms; /* DSP false alarm (both OFDM
2845 * and CCK) counter */
2846 __le32 beacon_rssi_a;
2847 __le32 beacon_rssi_b;
2848 __le32 beacon_rssi_c;
2849 __le32 beacon_energy_a;
2850 __le32 beacon_energy_b;
2851 __le32 beacon_energy_c;
2852} __packed;
2853
2854struct stats_rx {
2855 struct stats_rx_phy ofdm;
2856 struct stats_rx_phy cck;
2857 struct stats_rx_non_phy general;
2858 struct stats_rx_ht_phy ofdm_ht;
2859} __packed;
2860
2861/**
2862 * struct stats_tx_power - current tx power
2863 *
2864 * @ant_a: current tx power on chain a in 1/2 dB step
2865 * @ant_b: current tx power on chain b in 1/2 dB step
2866 * @ant_c: current tx power on chain c in 1/2 dB step
2867 */
2868struct stats_tx_power {
2869 u8 ant_a;
2870 u8 ant_b;
2871 u8 ant_c;
2872 u8 reserved;
2873} __packed;
2874
2875struct stats_tx_non_phy_agg {
2876 __le32 ba_timeout;
2877 __le32 ba_reschedule_frames;
2878 __le32 scd_query_agg_frame_cnt;
2879 __le32 scd_query_no_agg;
2880 __le32 scd_query_agg;
2881 __le32 scd_query_mismatch;
2882 __le32 frame_not_ready;
2883 __le32 underrun;
2884 __le32 bt_prio_kill;
2885 __le32 rx_ba_rsp_cnt;
2886} __packed;
2887
2888struct stats_tx {
2889 __le32 preamble_cnt;
2890 __le32 rx_detected_cnt;
2891 __le32 bt_prio_defer_cnt;
2892 __le32 bt_prio_kill_cnt;
2893 __le32 few_bytes_cnt;
2894 __le32 cts_timeout;
2895 __le32 ack_timeout;
2896 __le32 expected_ack_cnt;
2897 __le32 actual_ack_cnt;
2898 __le32 dump_msdu_cnt;
2899 __le32 burst_abort_next_frame_mismatch_cnt;
2900 __le32 burst_abort_missing_next_frame_cnt;
2901 __le32 cts_timeout_collision;
2902 __le32 ack_or_ba_timeout_collision;
2903 struct stats_tx_non_phy_agg agg;
2904
2905 __le32 reserved1;
2906} __packed;
2907
2908struct stats_div {
2909 __le32 tx_on_a;
2910 __le32 tx_on_b;
2911 __le32 exec_time;
2912 __le32 probe_time;
2913 __le32 reserved1;
2914 __le32 reserved2;
2915} __packed;
2916
2917struct stats_general_common {
2918 __le32 temperature; /* radio temperature */
2919 struct stats_dbg dbg;
2920 __le32 sleep_time;
2921 __le32 slots_out;
2922 __le32 slots_idle;
2923 __le32 ttl_timestamp;
2924 struct stats_div div;
2925 __le32 rx_enable_counter;
2926 /*
2927 * num_of_sos_states:
2928 * count the number of times we have to re-tune
2929 * in order to get out of bad PHY status
2930 */
2931 __le32 num_of_sos_states;
2932} __packed;
2933
2934struct stats_general {
2935 struct stats_general_common common;
2936 __le32 reserved2;
2937 __le32 reserved3;
2938} __packed;
2939
2940#define UCODE_STATS_CLEAR_MSK (0x1 << 0)
2941#define UCODE_STATS_FREQUENCY_MSK (0x1 << 1)
2942#define UCODE_STATS_NARROW_BAND_MSK (0x1 << 2)
2943
2944/*
2945 * C_STATS = 0x9c,
2946 * all devices identical.
2947 *
2948 * This command triggers an immediate response containing uCode stats.
2949 * The response is in the same format as N_STATS 0x9d, below.
2950 *
2951 * If the CLEAR_STATS configuration flag is set, uCode will clear its
2952 * internal copy of the stats (counters) after issuing the response.
2953 * This flag does not affect N_STATSs after beacons (see below).
2954 *
2955 * If the DISABLE_NOTIF configuration flag is set, uCode will not issue
2956 * N_STATSs after received beacons (see below). This flag
2957 * does not affect the response to the C_STATS 0x9c itself.
2958 */
2959#define IL_STATS_CONF_CLEAR_STATS cpu_to_le32(0x1) /* see above */
2960#define IL_STATS_CONF_DISABLE_NOTIF cpu_to_le32(0x2) /* see above */
2961struct il_stats_cmd {
2962 __le32 configuration_flags; /* IL_STATS_CONF_* */
2963} __packed;
2964
2965/*
2966 * N_STATS = 0x9d (notification only, not a command)
2967 *
2968 * By default, uCode issues this notification after receiving a beacon
2969 * while associated. To disable this behavior, set DISABLE_NOTIF flag in the
2970 * C_STATS 0x9c, above.
2971 *
2972 * Statistics counters continue to increment beacon after beacon, but are
2973 * cleared when changing channels or when driver issues C_STATS
2974 * 0x9c with CLEAR_STATS bit set (see above).
2975 *
2976 * uCode also issues this notification during scans. uCode clears stats
2977 * appropriately so that each notification contains stats for only the
2978 * one channel that has just been scanned.
2979 */
2980#define STATS_REPLY_FLG_BAND_24G_MSK cpu_to_le32(0x2)
2981#define STATS_REPLY_FLG_HT40_MODE_MSK cpu_to_le32(0x8)
2982
2983struct il3945_notif_stats {
2984 __le32 flag;
2985 struct iwl39_stats_rx rx;
2986 struct iwl39_stats_tx tx;
2987 struct iwl39_stats_general general;
2988} __packed;
2989
2990struct il_notif_stats {
2991 __le32 flag;
2992 struct stats_rx rx;
2993 struct stats_tx tx;
2994 struct stats_general general;
2995} __packed;
2996
2997/*
2998 * N_MISSED_BEACONS = 0xa2 (notification only, not a command)
2999 *
3000 * uCode send N_MISSED_BEACONS to driver when detect beacon missed
3001 * in regardless of how many missed beacons, which mean when driver receive the
3002 * notification, inside the command, it can find all the beacons information
3003 * which include number of total missed beacons, number of consecutive missed
3004 * beacons, number of beacons received and number of beacons expected to
3005 * receive.
3006 *
3007 * If uCode detected consecutive_missed_beacons > 5, it will reset the radio
3008 * in order to bring the radio/PHY back to working state; which has no relation
3009 * to when driver will perform sensitivity calibration.
3010 *
3011 * Driver should set it own missed_beacon_threshold to decide when to perform
3012 * sensitivity calibration based on number of consecutive missed beacons in
3013 * order to improve overall performance, especially in noisy environment.
3014 *
3015 */
3016
3017#define IL_MISSED_BEACON_THRESHOLD_MIN (1)
3018#define IL_MISSED_BEACON_THRESHOLD_DEF (5)
3019#define IL_MISSED_BEACON_THRESHOLD_MAX IL_MISSED_BEACON_THRESHOLD_DEF
3020
3021struct il_missed_beacon_notif {
3022 __le32 consecutive_missed_beacons;
3023 __le32 total_missed_becons;
3024 __le32 num_expected_beacons;
3025 __le32 num_recvd_beacons;
3026} __packed;
3027
3028/******************************************************************************
3029 * (11)
3030 * Rx Calibration Commands:
3031 *
3032 * With the uCode used for open source drivers, most Tx calibration (except
3033 * for Tx Power) and most Rx calibration is done by uCode during the
3034 * "initialize" phase of uCode boot. Driver must calibrate only:
3035 *
3036 * 1) Tx power (depends on temperature), described elsewhere
3037 * 2) Receiver gain balance (optimize MIMO, and detect disconnected antennas)
3038 * 3) Receiver sensitivity (to optimize signal detection)
3039 *
3040 *****************************************************************************/
3041
3042/**
3043 * C_SENSITIVITY = 0xa8 (command, has simple generic response)
3044 *
3045 * This command sets up the Rx signal detector for a sensitivity level that
3046 * is high enough to lock onto all signals within the associated network,
3047 * but low enough to ignore signals that are below a certain threshold, so as
3048 * not to have too many "false alarms". False alarms are signals that the
3049 * Rx DSP tries to lock onto, but then discards after determining that they
3050 * are noise.
3051 *
3052 * The optimum number of false alarms is between 5 and 50 per 200 TUs
3053 * (200 * 1024 uSecs, i.e. 204.8 milliseconds) of actual Rx time (i.e.
3054 * time listening, not transmitting). Driver must adjust sensitivity so that
3055 * the ratio of actual false alarms to actual Rx time falls within this range.
3056 *
3057 * While associated, uCode delivers N_STATSs after each
3058 * received beacon. These provide information to the driver to analyze the
3059 * sensitivity. Don't analyze stats that come in from scanning, or any
3060 * other non-associated-network source. Pertinent stats include:
3061 *
3062 * From "general" stats (struct stats_rx_non_phy):
3063 *
3064 * (beacon_energy_[abc] & 0x0FF00) >> 8 (unsigned, higher value is lower level)
3065 * Measure of energy of desired signal. Used for establishing a level
3066 * below which the device does not detect signals.
3067 *
3068 * (beacon_silence_rssi_[abc] & 0x0FF00) >> 8 (unsigned, units in dB)
3069 * Measure of background noise in silent period after beacon.
3070 *
3071 * channel_load
3072 * uSecs of actual Rx time during beacon period (varies according to
3073 * how much time was spent transmitting).
3074 *
3075 * From "cck" and "ofdm" stats (struct stats_rx_phy), separately:
3076 *
3077 * false_alarm_cnt
3078 * Signal locks abandoned early (before phy-level header).
3079 *
3080 * plcp_err
3081 * Signal locks abandoned late (during phy-level header).
3082 *
3083 * NOTE: Both false_alarm_cnt and plcp_err increment monotonically from
3084 * beacon to beacon, i.e. each value is an accumulation of all errors
3085 * before and including the latest beacon. Values will wrap around to 0
3086 * after counting up to 2^32 - 1. Driver must differentiate vs.
3087 * previous beacon's values to determine # false alarms in the current
3088 * beacon period.
3089 *
3090 * Total number of false alarms = false_alarms + plcp_errs
3091 *
3092 * For OFDM, adjust the following table entries in struct il_sensitivity_cmd
3093 * (notice that the start points for OFDM are at or close to settings for
3094 * maximum sensitivity):
3095 *
3096 * START / MIN / MAX
3097 * HD_AUTO_CORR32_X1_TH_ADD_MIN_IDX 90 / 85 / 120
3098 * HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_IDX 170 / 170 / 210
3099 * HD_AUTO_CORR32_X4_TH_ADD_MIN_IDX 105 / 105 / 140
3100 * HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_IDX 220 / 220 / 270
3101 *
3102 * If actual rate of OFDM false alarms (+ plcp_errors) is too high
3103 * (greater than 50 for each 204.8 msecs listening), reduce sensitivity
3104 * by *adding* 1 to all 4 of the table entries above, up to the max for
3105 * each entry. Conversely, if false alarm rate is too low (less than 5
3106 * for each 204.8 msecs listening), *subtract* 1 from each entry to
3107 * increase sensitivity.
3108 *
3109 * For CCK sensitivity, keep track of the following:
3110 *
3111 * 1). 20-beacon history of maximum background noise, indicated by
3112 * (beacon_silence_rssi_[abc] & 0x0FF00), units in dB, across the
3113 * 3 receivers. For any given beacon, the "silence reference" is
3114 * the maximum of last 60 samples (20 beacons * 3 receivers).
3115 *
3116 * 2). 10-beacon history of strongest signal level, as indicated
3117 * by (beacon_energy_[abc] & 0x0FF00) >> 8, across the 3 receivers,
3118 * i.e. the strength of the signal through the best receiver at the
3119 * moment. These measurements are "upside down", with lower values
3120 * for stronger signals, so max energy will be *minimum* value.
3121 *
3122 * Then for any given beacon, the driver must determine the *weakest*
3123 * of the strongest signals; this is the minimum level that needs to be
3124 * successfully detected, when using the best receiver at the moment.
3125 * "Max cck energy" is the maximum (higher value means lower energy!)
3126 * of the last 10 minima. Once this is determined, driver must add
3127 * a little margin by adding "6" to it.
3128 *
3129 * 3). Number of consecutive beacon periods with too few false alarms.
3130 * Reset this to 0 at the first beacon period that falls within the
3131 * "good" range (5 to 50 false alarms per 204.8 milliseconds rx).
3132 *
3133 * Then, adjust the following CCK table entries in struct il_sensitivity_cmd
3134 * (notice that the start points for CCK are at maximum sensitivity):
3135 *
3136 * START / MIN / MAX
3137 * HD_AUTO_CORR40_X4_TH_ADD_MIN_IDX 125 / 125 / 200
3138 * HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_IDX 200 / 200 / 400
3139 * HD_MIN_ENERGY_CCK_DET_IDX 100 / 0 / 100
3140 *
3141 * If actual rate of CCK false alarms (+ plcp_errors) is too high
3142 * (greater than 50 for each 204.8 msecs listening), method for reducing
3143 * sensitivity is:
3144 *
3145 * 1) *Add* 3 to value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_IDX,
3146 * up to max 400.
3147 *
3148 * 2) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_IDX is < 160,
3149 * sensitivity has been reduced a significant amount; bring it up to
3150 * a moderate 161. Otherwise, *add* 3, up to max 200.
3151 *
3152 * 3) a) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_IDX is > 160,
3153 * sensitivity has been reduced only a moderate or small amount;
3154 * *subtract* 2 from value in HD_MIN_ENERGY_CCK_DET_IDX,
3155 * down to min 0. Otherwise (if gain has been significantly reduced),
3156 * don't change the HD_MIN_ENERGY_CCK_DET_IDX value.
3157 *
3158 * b) Save a snapshot of the "silence reference".
3159 *
3160 * If actual rate of CCK false alarms (+ plcp_errors) is too low
3161 * (less than 5 for each 204.8 msecs listening), method for increasing
3162 * sensitivity is used only if:
3163 *
3164 * 1a) Previous beacon did not have too many false alarms
3165 * 1b) AND difference between previous "silence reference" and current
3166 * "silence reference" (prev - current) is 2 or more,
3167 * OR 2) 100 or more consecutive beacon periods have had rate of
3168 * less than 5 false alarms per 204.8 milliseconds rx time.
3169 *
3170 * Method for increasing sensitivity:
3171 *
3172 * 1) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_IDX,
3173 * down to min 125.
3174 *
3175 * 2) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_IDX,
3176 * down to min 200.
3177 *
3178 * 3) *Add* 2 to value in HD_MIN_ENERGY_CCK_DET_IDX, up to max 100.
3179 *
3180 * If actual rate of CCK false alarms (+ plcp_errors) is within good range
3181 * (between 5 and 50 for each 204.8 msecs listening):
3182 *
3183 * 1) Save a snapshot of the silence reference.
3184 *
3185 * 2) If previous beacon had too many CCK false alarms (+ plcp_errors),
3186 * give some extra margin to energy threshold by *subtracting* 8
3187 * from value in HD_MIN_ENERGY_CCK_DET_IDX.
3188 *
3189 * For all cases (too few, too many, good range), make sure that the CCK
3190 * detection threshold (energy) is below the energy level for robust
3191 * detection over the past 10 beacon periods, the "Max cck energy".
3192 * Lower values mean higher energy; this means making sure that the value
3193 * in HD_MIN_ENERGY_CCK_DET_IDX is at or *above* "Max cck energy".
3194 *
3195 */
3196
3197/*
3198 * Table entries in C_SENSITIVITY (struct il_sensitivity_cmd)
3199 */
3200#define HD_TBL_SIZE (11) /* number of entries */
3201#define HD_MIN_ENERGY_CCK_DET_IDX (0) /* table idxes */
3202#define HD_MIN_ENERGY_OFDM_DET_IDX (1)
3203#define HD_AUTO_CORR32_X1_TH_ADD_MIN_IDX (2)
3204#define HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_IDX (3)
3205#define HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_IDX (4)
3206#define HD_AUTO_CORR32_X4_TH_ADD_MIN_IDX (5)
3207#define HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_IDX (6)
3208#define HD_BARKER_CORR_TH_ADD_MIN_IDX (7)
3209#define HD_BARKER_CORR_TH_ADD_MIN_MRC_IDX (8)
3210#define HD_AUTO_CORR40_X4_TH_ADD_MIN_IDX (9)
3211#define HD_OFDM_ENERGY_TH_IN_IDX (10)
3212
3213/* Control field in struct il_sensitivity_cmd */
3214#define C_SENSITIVITY_CONTROL_DEFAULT_TBL cpu_to_le16(0)
3215#define C_SENSITIVITY_CONTROL_WORK_TBL cpu_to_le16(1)
3216
3217/**
3218 * struct il_sensitivity_cmd
3219 * @control: (1) updates working table, (0) updates default table
3220 * @table: energy threshold values, use HD_* as idx into table
3221 *
3222 * Always use "1" in "control" to update uCode's working table and DSP.
3223 */
3224struct il_sensitivity_cmd {
3225 __le16 control; /* always use "1" */
3226 __le16 table[HD_TBL_SIZE]; /* use HD_* as idx */
3227} __packed;
3228
3229/**
3230 * C_PHY_CALIBRATION = 0xb0 (command, has simple generic response)
3231 *
3232 * This command sets the relative gains of 4965 device's 3 radio receiver chains.
3233 *
3234 * After the first association, driver should accumulate signal and noise
3235 * stats from the N_STATSs that follow the first 20
3236 * beacons from the associated network (don't collect stats that come
3237 * in from scanning, or any other non-network source).
3238 *
3239 * DISCONNECTED ANTENNA:
3240 *
3241 * Driver should determine which antennas are actually connected, by comparing
3242 * average beacon signal levels for the 3 Rx chains. Accumulate (add) the
3243 * following values over 20 beacons, one accumulator for each of the chains
3244 * a/b/c, from struct stats_rx_non_phy:
3245 *
3246 * beacon_rssi_[abc] & 0x0FF (unsigned, units in dB)
3247 *
3248 * Find the strongest signal from among a/b/c. Compare the other two to the
3249 * strongest. If any signal is more than 15 dB (times 20, unless you
3250 * divide the accumulated values by 20) below the strongest, the driver
3251 * considers that antenna to be disconnected, and should not try to use that
3252 * antenna/chain for Rx or Tx. If both A and B seem to be disconnected,
3253 * driver should declare the stronger one as connected, and attempt to use it
3254 * (A and B are the only 2 Tx chains!).
3255 *
3256 *
3257 * RX BALANCE:
3258 *
3259 * Driver should balance the 3 receivers (but just the ones that are connected
3260 * to antennas, see above) for gain, by comparing the average signal levels
3261 * detected during the silence after each beacon (background noise).
3262 * Accumulate (add) the following values over 20 beacons, one accumulator for
3263 * each of the chains a/b/c, from struct stats_rx_non_phy:
3264 *
3265 * beacon_silence_rssi_[abc] & 0x0FF (unsigned, units in dB)
3266 *
3267 * Find the weakest background noise level from among a/b/c. This Rx chain
3268 * will be the reference, with 0 gain adjustment. Attenuate other channels by
3269 * finding noise difference:
3270 *
3271 * (accum_noise[i] - accum_noise[reference]) / 30
3272 *
3273 * The "30" adjusts the dB in the 20 accumulated samples to units of 1.5 dB.
3274 * For use in diff_gain_[abc] fields of struct il_calibration_cmd, the
3275 * driver should limit the difference results to a range of 0-3 (0-4.5 dB),
3276 * and set bit 2 to indicate "reduce gain". The value for the reference
3277 * (weakest) chain should be "0".
3278 *
3279 * diff_gain_[abc] bit fields:
3280 * 2: (1) reduce gain, (0) increase gain
3281 * 1-0: amount of gain, units of 1.5 dB
3282 */
3283
3284/* Phy calibration command for series */
3285/* The default calibrate table size if not specified by firmware */
3286#define IL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE 18
3287enum {
3288 IL_PHY_CALIBRATE_DIFF_GAIN_CMD = 7,
3289 IL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE = 19,
3290};
3291
3292#define IL_MAX_PHY_CALIBRATE_TBL_SIZE (253)
3293
3294struct il_calib_hdr {
3295 u8 op_code;
3296 u8 first_group;
3297 u8 groups_num;
3298 u8 data_valid;
3299} __packed;
3300
3301/* IL_PHY_CALIBRATE_DIFF_GAIN_CMD (7) */
3302struct il_calib_diff_gain_cmd {
3303 struct il_calib_hdr hdr;
3304 s8 diff_gain_a; /* see above */
3305 s8 diff_gain_b;
3306 s8 diff_gain_c;
3307 u8 reserved1;
3308} __packed;
3309
3310/******************************************************************************
3311 * (12)
3312 * Miscellaneous Commands:
3313 *
3314 *****************************************************************************/
3315
3316/*
3317 * LEDs Command & Response
3318 * C_LEDS = 0x48 (command, has simple generic response)
3319 *
3320 * For each of 3 possible LEDs (Activity/Link/Tech, selected by "id" field),
3321 * this command turns it on or off, or sets up a periodic blinking cycle.
3322 */
3323struct il_led_cmd {
3324 __le32 interval; /* "interval" in uSec */
3325 u8 id; /* 1: Activity, 2: Link, 3: Tech */
3326 u8 off; /* # intervals off while blinking;
3327 * "0", with >0 "on" value, turns LED on */
3328 u8 on; /* # intervals on while blinking;
3329 * "0", regardless of "off", turns LED off */
3330 u8 reserved;
3331} __packed;
3332
3333/******************************************************************************
3334 * (13)
3335 * Union of all expected notifications/responses:
3336 *
3337 *****************************************************************************/
3338
3339#define IL_RX_FRAME_SIZE_MSK 0x00003fff
3340
3341struct il_rx_pkt {
3342 /*
3343 * The first 4 bytes of the RX frame header contain both the RX frame
3344 * size and some flags.
3345 * Bit fields:
3346 * 31: flag flush RB request
3347 * 30: flag ignore TC (terminal counter) request
3348 * 29: flag fast IRQ request
3349 * 28-14: Reserved
3350 * 13-00: RX frame size
3351 */
3352 __le32 len_n_flags;
3353 struct il_cmd_header hdr;
3354 union {
3355 struct il3945_rx_frame rx_frame;
3356 struct il3945_tx_resp tx_resp;
3357 struct il3945_beacon_notif beacon_status;
3358
3359 struct il_alive_resp alive_frame;
3360 struct il_spectrum_notification spectrum_notif;
3361 struct il_csa_notification csa_notif;
3362 struct il_error_resp err_resp;
3363 struct il_card_state_notif card_state_notif;
3364 struct il_add_sta_resp add_sta;
3365 struct il_rem_sta_resp rem_sta;
3366 struct il_sleep_notification sleep_notif;
3367 struct il_spectrum_resp spectrum;
3368 struct il_notif_stats stats;
3369 struct il_compressed_ba_resp compressed_ba;
3370 struct il_missed_beacon_notif missed_beacon;
3371 __le32 status;
3372 u8 raw[0];
3373 } u;
3374} __packed;
3375
3376#endif /* __il_commands_h__ */