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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 | * Please use this file (iwl-commands.h) only for uCode API definitions. | |
65 | * Please use iwl-xxxx-hw.h for hardware-related definitions. | |
66 | * Please use iwl-dev.h for driver implementation definitions. | |
67 | */ | |
68 | ||
e2ebc833 SG |
69 | #ifndef __il_commands_h__ |
70 | #define __il_commands_h__ | |
be663ab6 | 71 | |
e2ebc833 | 72 | struct il_priv; |
be663ab6 WYG |
73 | |
74 | /* uCode version contains 4 values: Major/Minor/API/Serial */ | |
e2ebc833 SG |
75 | #define IL_UCODE_MAJOR(ver) (((ver) & 0xFF000000) >> 24) |
76 | #define IL_UCODE_MINOR(ver) (((ver) & 0x00FF0000) >> 16) | |
77 | #define IL_UCODE_API(ver) (((ver) & 0x0000FF00) >> 8) | |
78 | #define IL_UCODE_SERIAL(ver) ((ver) & 0x000000FF) | |
be663ab6 WYG |
79 | |
80 | ||
81 | /* Tx rates */ | |
e2ebc833 SG |
82 | #define IL_CCK_RATES 4 |
83 | #define IL_OFDM_RATES 8 | |
84 | #define IL_MAX_RATES (IL_CCK_RATES + IL_OFDM_RATES) | |
be663ab6 WYG |
85 | |
86 | enum { | |
87 | REPLY_ALIVE = 0x1, | |
88 | REPLY_ERROR = 0x2, | |
89 | ||
90 | /* RXON and QOS commands */ | |
91 | REPLY_RXON = 0x10, | |
92 | REPLY_RXON_ASSOC = 0x11, | |
93 | REPLY_QOS_PARAM = 0x13, | |
94 | REPLY_RXON_TIMING = 0x14, | |
95 | ||
96 | /* Multi-Station support */ | |
97 | REPLY_ADD_STA = 0x18, | |
98 | REPLY_REMOVE_STA = 0x19, | |
99 | ||
100 | /* Security */ | |
101 | REPLY_WEPKEY = 0x20, | |
102 | ||
103 | /* RX, TX, LEDs */ | |
104 | REPLY_3945_RX = 0x1b, /* 3945 only */ | |
105 | REPLY_TX = 0x1c, | |
106 | REPLY_RATE_SCALE = 0x47, /* 3945 only */ | |
107 | REPLY_LEDS_CMD = 0x48, | |
108 | REPLY_TX_LINK_QUALITY_CMD = 0x4e, /* for 4965 and up */ | |
109 | ||
110 | /* 802.11h related */ | |
111 | REPLY_CHANNEL_SWITCH = 0x72, | |
112 | CHANNEL_SWITCH_NOTIFICATION = 0x73, | |
113 | REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74, | |
114 | SPECTRUM_MEASURE_NOTIFICATION = 0x75, | |
115 | ||
116 | /* Power Management */ | |
117 | POWER_TABLE_CMD = 0x77, | |
118 | PM_SLEEP_NOTIFICATION = 0x7A, | |
119 | PM_DEBUG_STATISTIC_NOTIFIC = 0x7B, | |
120 | ||
121 | /* Scan commands and notifications */ | |
122 | REPLY_SCAN_CMD = 0x80, | |
123 | REPLY_SCAN_ABORT_CMD = 0x81, | |
124 | SCAN_START_NOTIFICATION = 0x82, | |
125 | SCAN_RESULTS_NOTIFICATION = 0x83, | |
126 | SCAN_COMPLETE_NOTIFICATION = 0x84, | |
127 | ||
128 | /* IBSS/AP commands */ | |
129 | BEACON_NOTIFICATION = 0x90, | |
130 | REPLY_TX_BEACON = 0x91, | |
131 | ||
132 | /* Miscellaneous commands */ | |
133 | REPLY_TX_PWR_TABLE_CMD = 0x97, | |
134 | ||
135 | /* Bluetooth device coexistence config command */ | |
136 | REPLY_BT_CONFIG = 0x9b, | |
137 | ||
138 | /* Statistics */ | |
139 | REPLY_STATISTICS_CMD = 0x9c, | |
140 | STATISTICS_NOTIFICATION = 0x9d, | |
141 | ||
142 | /* RF-KILL commands and notifications */ | |
143 | CARD_STATE_NOTIFICATION = 0xa1, | |
144 | ||
145 | /* Missed beacons notification */ | |
146 | MISSED_BEACONS_NOTIFICATION = 0xa2, | |
147 | ||
148 | REPLY_CT_KILL_CONFIG_CMD = 0xa4, | |
149 | SENSITIVITY_CMD = 0xa8, | |
150 | REPLY_PHY_CALIBRATION_CMD = 0xb0, | |
151 | REPLY_RX_PHY_CMD = 0xc0, | |
152 | REPLY_RX_MPDU_CMD = 0xc1, | |
153 | REPLY_RX = 0xc3, | |
154 | REPLY_COMPRESSED_BA = 0xc5, | |
155 | ||
156 | REPLY_MAX = 0xff | |
157 | }; | |
158 | ||
159 | /****************************************************************************** | |
160 | * (0) | |
161 | * Commonly used structures and definitions: | |
162 | * Command header, rate_n_flags, txpower | |
163 | * | |
164 | *****************************************************************************/ | |
165 | ||
e2ebc833 SG |
166 | /* il_cmd_header flags value */ |
167 | #define IL_CMD_FAILED_MSK 0x40 | |
be663ab6 WYG |
168 | |
169 | #define SEQ_TO_QUEUE(s) (((s) >> 8) & 0x1f) | |
170 | #define QUEUE_TO_SEQ(q) (((q) & 0x1f) << 8) | |
171 | #define SEQ_TO_INDEX(s) ((s) & 0xff) | |
172 | #define INDEX_TO_SEQ(i) ((i) & 0xff) | |
173 | #define SEQ_HUGE_FRAME cpu_to_le16(0x4000) | |
174 | #define SEQ_RX_FRAME cpu_to_le16(0x8000) | |
175 | ||
176 | /** | |
e2ebc833 | 177 | * struct il_cmd_header |
be663ab6 WYG |
178 | * |
179 | * This header format appears in the beginning of each command sent from the | |
180 | * driver, and each response/notification received from uCode. | |
181 | */ | |
e2ebc833 | 182 | struct il_cmd_header { |
be663ab6 WYG |
183 | u8 cmd; /* Command ID: REPLY_RXON, etc. */ |
184 | u8 flags; /* 0:5 reserved, 6 abort, 7 internal */ | |
185 | /* | |
186 | * The driver sets up the sequence number to values of its choosing. | |
187 | * uCode does not use this value, but passes it back to the driver | |
188 | * when sending the response to each driver-originated command, so | |
189 | * the driver can match the response to the command. Since the values | |
190 | * don't get used by uCode, the driver may set up an arbitrary format. | |
191 | * | |
192 | * There is one exception: uCode sets bit 15 when it originates | |
193 | * the response/notification, i.e. when the response/notification | |
194 | * is not a direct response to a command sent by the driver. For | |
195 | * example, uCode issues REPLY_3945_RX when it sends a received frame | |
196 | * to the driver; it is not a direct response to any driver command. | |
197 | * | |
198 | * The Linux driver uses the following format: | |
199 | * | |
200 | * 0:7 tfd index - position within TX queue | |
201 | * 8:12 TX queue id | |
202 | * 13 reserved | |
203 | * 14 huge - driver sets this to indicate command is in the | |
204 | * 'huge' storage at the end of the command buffers | |
205 | * 15 unsolicited RX or uCode-originated notification | |
206 | */ | |
207 | __le16 sequence; | |
208 | ||
209 | /* command or response/notification data follows immediately */ | |
210 | u8 data[0]; | |
211 | } __packed; | |
212 | ||
213 | ||
214 | /** | |
e2ebc833 | 215 | * struct il3945_tx_power |
be663ab6 WYG |
216 | * |
217 | * Used in REPLY_TX_PWR_TABLE_CMD, REPLY_SCAN_CMD, REPLY_CHANNEL_SWITCH | |
218 | * | |
219 | * Each entry contains two values: | |
220 | * 1) DSP gain (or sometimes called DSP attenuation). This is a fine-grained | |
221 | * linear value that multiplies the output of the digital signal processor, | |
222 | * before being sent to the analog radio. | |
223 | * 2) Radio gain. This sets the analog gain of the radio Tx path. | |
224 | * It is a coarser setting, and behaves in a logarithmic (dB) fashion. | |
225 | * | |
e2ebc833 | 226 | * Driver obtains values from struct il3945_tx_power power_gain_table[][]. |
be663ab6 | 227 | */ |
e2ebc833 | 228 | struct il3945_tx_power { |
be663ab6 WYG |
229 | u8 tx_gain; /* gain for analog radio */ |
230 | u8 dsp_atten; /* gain for DSP */ | |
231 | } __packed; | |
232 | ||
233 | /** | |
e2ebc833 | 234 | * struct il3945_power_per_rate |
be663ab6 WYG |
235 | * |
236 | * Used in REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH | |
237 | */ | |
e2ebc833 | 238 | struct il3945_power_per_rate { |
be663ab6 | 239 | u8 rate; /* plcp */ |
e2ebc833 | 240 | struct il3945_tx_power tpc; |
be663ab6 WYG |
241 | u8 reserved; |
242 | } __packed; | |
243 | ||
244 | /** | |
245 | * iwl4965 rate_n_flags bit fields | |
246 | * | |
247 | * rate_n_flags format is used in following iwl4965 commands: | |
248 | * REPLY_RX (response only) | |
249 | * REPLY_RX_MPDU (response only) | |
250 | * REPLY_TX (both command and response) | |
251 | * REPLY_TX_LINK_QUALITY_CMD | |
252 | * | |
253 | * High-throughput (HT) rate format for bits 7:0 (bit 8 must be "1"): | |
254 | * 2-0: 0) 6 Mbps | |
255 | * 1) 12 Mbps | |
256 | * 2) 18 Mbps | |
257 | * 3) 24 Mbps | |
258 | * 4) 36 Mbps | |
259 | * 5) 48 Mbps | |
260 | * 6) 54 Mbps | |
261 | * 7) 60 Mbps | |
262 | * | |
263 | * 4-3: 0) Single stream (SISO) | |
264 | * 1) Dual stream (MIMO) | |
265 | * 2) Triple stream (MIMO) | |
266 | * | |
267 | * 5: Value of 0x20 in bits 7:0 indicates 6 Mbps HT40 duplicate data | |
268 | * | |
269 | * Legacy OFDM rate format for bits 7:0 (bit 8 must be "0", bit 9 "0"): | |
270 | * 3-0: 0xD) 6 Mbps | |
271 | * 0xF) 9 Mbps | |
272 | * 0x5) 12 Mbps | |
273 | * 0x7) 18 Mbps | |
274 | * 0x9) 24 Mbps | |
275 | * 0xB) 36 Mbps | |
276 | * 0x1) 48 Mbps | |
277 | * 0x3) 54 Mbps | |
278 | * | |
279 | * Legacy CCK rate format for bits 7:0 (bit 8 must be "0", bit 9 "1"): | |
280 | * 6-0: 10) 1 Mbps | |
281 | * 20) 2 Mbps | |
282 | * 55) 5.5 Mbps | |
283 | * 110) 11 Mbps | |
284 | */ | |
285 | #define RATE_MCS_CODE_MSK 0x7 | |
286 | #define RATE_MCS_SPATIAL_POS 3 | |
287 | #define RATE_MCS_SPATIAL_MSK 0x18 | |
288 | #define RATE_MCS_HT_DUP_POS 5 | |
289 | #define RATE_MCS_HT_DUP_MSK 0x20 | |
290 | ||
291 | /* Bit 8: (1) HT format, (0) legacy format in bits 7:0 */ | |
292 | #define RATE_MCS_FLAGS_POS 8 | |
293 | #define RATE_MCS_HT_POS 8 | |
294 | #define RATE_MCS_HT_MSK 0x100 | |
295 | ||
296 | /* Bit 9: (1) CCK, (0) OFDM. HT (bit 8) must be "0" for this bit to be valid */ | |
297 | #define RATE_MCS_CCK_POS 9 | |
298 | #define RATE_MCS_CCK_MSK 0x200 | |
299 | ||
300 | /* Bit 10: (1) Use Green Field preamble */ | |
301 | #define RATE_MCS_GF_POS 10 | |
302 | #define RATE_MCS_GF_MSK 0x400 | |
303 | ||
304 | /* Bit 11: (1) Use 40Mhz HT40 chnl width, (0) use 20 MHz legacy chnl width */ | |
305 | #define RATE_MCS_HT40_POS 11 | |
306 | #define RATE_MCS_HT40_MSK 0x800 | |
307 | ||
308 | /* Bit 12: (1) Duplicate data on both 20MHz chnls. HT40 (bit 11) must be set. */ | |
309 | #define RATE_MCS_DUP_POS 12 | |
310 | #define RATE_MCS_DUP_MSK 0x1000 | |
311 | ||
312 | /* Bit 13: (1) Short guard interval (0.4 usec), (0) normal GI (0.8 usec) */ | |
313 | #define RATE_MCS_SGI_POS 13 | |
314 | #define RATE_MCS_SGI_MSK 0x2000 | |
315 | ||
316 | /** | |
317 | * rate_n_flags Tx antenna masks | |
318 | * 4965 has 2 transmitters | |
319 | * bit14:16 | |
320 | */ | |
321 | #define RATE_MCS_ANT_POS 14 | |
322 | #define RATE_MCS_ANT_A_MSK 0x04000 | |
323 | #define RATE_MCS_ANT_B_MSK 0x08000 | |
324 | #define RATE_MCS_ANT_C_MSK 0x10000 | |
325 | #define RATE_MCS_ANT_AB_MSK (RATE_MCS_ANT_A_MSK | RATE_MCS_ANT_B_MSK) | |
326 | #define RATE_MCS_ANT_ABC_MSK (RATE_MCS_ANT_AB_MSK | RATE_MCS_ANT_C_MSK) | |
327 | #define RATE_ANT_NUM 3 | |
328 | ||
329 | #define POWER_TABLE_NUM_ENTRIES 33 | |
330 | #define POWER_TABLE_NUM_HT_OFDM_ENTRIES 32 | |
331 | #define POWER_TABLE_CCK_ENTRY 32 | |
332 | ||
e2ebc833 SG |
333 | #define IL_PWR_NUM_HT_OFDM_ENTRIES 24 |
334 | #define IL_PWR_CCK_ENTRIES 2 | |
be663ab6 WYG |
335 | |
336 | /** | |
e2ebc833 | 337 | * union il4965_tx_power_dual_stream |
be663ab6 WYG |
338 | * |
339 | * Host format used for REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH | |
340 | * Use __le32 version (struct tx_power_dual_stream) when building command. | |
341 | * | |
342 | * Driver provides radio gain and DSP attenuation settings to device in pairs, | |
343 | * one value for each transmitter chain. The first value is for transmitter A, | |
344 | * second for transmitter B. | |
345 | * | |
346 | * For SISO bit rates, both values in a pair should be identical. | |
347 | * For MIMO rates, one value may be different from the other, | |
348 | * in order to balance the Tx output between the two transmitters. | |
349 | * | |
350 | * See more details in doc for TXPOWER in iwl-4965-hw.h. | |
351 | */ | |
e2ebc833 | 352 | union il4965_tx_power_dual_stream { |
be663ab6 WYG |
353 | struct { |
354 | u8 radio_tx_gain[2]; | |
355 | u8 dsp_predis_atten[2]; | |
356 | } s; | |
357 | u32 dw; | |
358 | }; | |
359 | ||
360 | /** | |
361 | * struct tx_power_dual_stream | |
362 | * | |
363 | * Table entries in REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH | |
364 | * | |
e2ebc833 | 365 | * Same format as il_tx_power_dual_stream, but __le32 |
be663ab6 WYG |
366 | */ |
367 | struct tx_power_dual_stream { | |
368 | __le32 dw; | |
369 | } __packed; | |
370 | ||
371 | /** | |
e2ebc833 | 372 | * struct il4965_tx_power_db |
be663ab6 WYG |
373 | * |
374 | * Entire table within REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH | |
375 | */ | |
e2ebc833 | 376 | struct il4965_tx_power_db { |
be663ab6 WYG |
377 | struct tx_power_dual_stream power_tbl[POWER_TABLE_NUM_ENTRIES]; |
378 | } __packed; | |
379 | ||
380 | /****************************************************************************** | |
381 | * (0a) | |
382 | * Alive and Error Commands & Responses: | |
383 | * | |
384 | *****************************************************************************/ | |
385 | ||
386 | #define UCODE_VALID_OK cpu_to_le32(0x1) | |
387 | #define INITIALIZE_SUBTYPE (9) | |
388 | ||
389 | /* | |
390 | * ("Initialize") REPLY_ALIVE = 0x1 (response only, not a command) | |
391 | * | |
392 | * uCode issues this "initialize alive" notification once the initialization | |
393 | * uCode image has completed its work, and is ready to load the runtime image. | |
394 | * This is the *first* "alive" notification that the driver will receive after | |
395 | * rebooting uCode; the "initialize" alive is indicated by subtype field == 9. | |
396 | * | |
397 | * See comments documenting "BSM" (bootstrap state machine). | |
398 | * | |
399 | * For 4965, this notification contains important calibration data for | |
400 | * calculating txpower settings: | |
401 | * | |
402 | * 1) Power supply voltage indication. The voltage sensor outputs higher | |
403 | * values for lower voltage, and vice verse. | |
404 | * | |
405 | * 2) Temperature measurement parameters, for each of two channel widths | |
406 | * (20 MHz and 40 MHz) supported by the radios. Temperature sensing | |
407 | * is done via one of the receiver chains, and channel width influences | |
408 | * the results. | |
409 | * | |
410 | * 3) Tx gain compensation to balance 4965's 2 Tx chains for MIMO operation, | |
411 | * for each of 5 frequency ranges. | |
412 | */ | |
e2ebc833 | 413 | struct il_init_alive_resp { |
be663ab6 WYG |
414 | u8 ucode_minor; |
415 | u8 ucode_major; | |
416 | __le16 reserved1; | |
417 | u8 sw_rev[8]; | |
418 | u8 ver_type; | |
419 | u8 ver_subtype; /* "9" for initialize alive */ | |
420 | __le16 reserved2; | |
421 | __le32 log_event_table_ptr; | |
422 | __le32 error_event_table_ptr; | |
423 | __le32 timestamp; | |
424 | __le32 is_valid; | |
425 | ||
426 | /* calibration values from "initialize" uCode */ | |
427 | __le32 voltage; /* signed, higher value is lower voltage */ | |
428 | __le32 therm_r1[2]; /* signed, 1st for normal, 2nd for HT40 */ | |
429 | __le32 therm_r2[2]; /* signed */ | |
430 | __le32 therm_r3[2]; /* signed */ | |
431 | __le32 therm_r4[2]; /* signed */ | |
432 | __le32 tx_atten[5][2]; /* signed MIMO gain comp, 5 freq groups, | |
433 | * 2 Tx chains */ | |
434 | } __packed; | |
435 | ||
436 | ||
437 | /** | |
438 | * REPLY_ALIVE = 0x1 (response only, not a command) | |
439 | * | |
440 | * uCode issues this "alive" notification once the runtime image is ready | |
441 | * to receive commands from the driver. This is the *second* "alive" | |
442 | * notification that the driver will receive after rebooting uCode; | |
443 | * this "alive" is indicated by subtype field != 9. | |
444 | * | |
445 | * See comments documenting "BSM" (bootstrap state machine). | |
446 | * | |
447 | * This response includes two pointers to structures within the device's | |
448 | * data SRAM (access via HBUS_TARG_MEM_* regs) that are useful for debugging: | |
449 | * | |
450 | * 1) log_event_table_ptr indicates base of the event log. This traces | |
451 | * a 256-entry history of uCode execution within a circular buffer. | |
452 | * Its header format is: | |
453 | * | |
454 | * __le32 log_size; log capacity (in number of entries) | |
455 | * __le32 type; (1) timestamp with each entry, (0) no timestamp | |
456 | * __le32 wraps; # times uCode has wrapped to top of circular buffer | |
457 | * __le32 write_index; next circular buffer entry that uCode would fill | |
458 | * | |
459 | * The header is followed by the circular buffer of log entries. Entries | |
460 | * with timestamps have the following format: | |
461 | * | |
462 | * __le32 event_id; range 0 - 1500 | |
463 | * __le32 timestamp; low 32 bits of TSF (of network, if associated) | |
464 | * __le32 data; event_id-specific data value | |
465 | * | |
466 | * Entries without timestamps contain only event_id and data. | |
467 | * | |
468 | * | |
469 | * 2) error_event_table_ptr indicates base of the error log. This contains | |
470 | * information about any uCode error that occurs. For 4965, the format | |
471 | * of the error log is: | |
472 | * | |
473 | * __le32 valid; (nonzero) valid, (0) log is empty | |
474 | * __le32 error_id; type of error | |
475 | * __le32 pc; program counter | |
476 | * __le32 blink1; branch link | |
477 | * __le32 blink2; branch link | |
478 | * __le32 ilink1; interrupt link | |
479 | * __le32 ilink2; interrupt link | |
480 | * __le32 data1; error-specific data | |
481 | * __le32 data2; error-specific data | |
482 | * __le32 line; source code line of error | |
483 | * __le32 bcon_time; beacon timer | |
484 | * __le32 tsf_low; network timestamp function timer | |
485 | * __le32 tsf_hi; network timestamp function timer | |
486 | * __le32 gp1; GP1 timer register | |
487 | * __le32 gp2; GP2 timer register | |
488 | * __le32 gp3; GP3 timer register | |
489 | * __le32 ucode_ver; uCode version | |
490 | * __le32 hw_ver; HW Silicon version | |
491 | * __le32 brd_ver; HW board version | |
492 | * __le32 log_pc; log program counter | |
493 | * __le32 frame_ptr; frame pointer | |
494 | * __le32 stack_ptr; stack pointer | |
495 | * __le32 hcmd; last host command | |
496 | * __le32 isr0; isr status register LMPM_NIC_ISR0: rxtx_flag | |
497 | * __le32 isr1; isr status register LMPM_NIC_ISR1: host_flag | |
498 | * __le32 isr2; isr status register LMPM_NIC_ISR2: enc_flag | |
499 | * __le32 isr3; isr status register LMPM_NIC_ISR3: time_flag | |
500 | * __le32 isr4; isr status register LMPM_NIC_ISR4: wico interrupt | |
501 | * __le32 isr_pref; isr status register LMPM_NIC_PREF_STAT | |
502 | * __le32 wait_event; wait event() caller address | |
503 | * __le32 l2p_control; L2pControlField | |
504 | * __le32 l2p_duration; L2pDurationField | |
505 | * __le32 l2p_mhvalid; L2pMhValidBits | |
506 | * __le32 l2p_addr_match; L2pAddrMatchStat | |
507 | * __le32 lmpm_pmg_sel; indicate which clocks are turned on (LMPM_PMG_SEL) | |
508 | * __le32 u_timestamp; indicate when the date and time of the compilation | |
509 | * __le32 reserved; | |
510 | * | |
511 | * The Linux driver can print both logs to the system log when a uCode error | |
512 | * occurs. | |
513 | */ | |
e2ebc833 | 514 | struct il_alive_resp { |
be663ab6 WYG |
515 | u8 ucode_minor; |
516 | u8 ucode_major; | |
517 | __le16 reserved1; | |
518 | u8 sw_rev[8]; | |
519 | u8 ver_type; | |
520 | u8 ver_subtype; /* not "9" for runtime alive */ | |
521 | __le16 reserved2; | |
522 | __le32 log_event_table_ptr; /* SRAM address for event log */ | |
523 | __le32 error_event_table_ptr; /* SRAM address for error log */ | |
524 | __le32 timestamp; | |
525 | __le32 is_valid; | |
526 | } __packed; | |
527 | ||
528 | /* | |
529 | * REPLY_ERROR = 0x2 (response only, not a command) | |
530 | */ | |
e2ebc833 | 531 | struct il_error_resp { |
be663ab6 WYG |
532 | __le32 error_type; |
533 | u8 cmd_id; | |
534 | u8 reserved1; | |
535 | __le16 bad_cmd_seq_num; | |
536 | __le32 error_info; | |
537 | __le64 timestamp; | |
538 | } __packed; | |
539 | ||
540 | /****************************************************************************** | |
541 | * (1) | |
542 | * RXON Commands & Responses: | |
543 | * | |
544 | *****************************************************************************/ | |
545 | ||
546 | /* | |
547 | * Rx config defines & structure | |
548 | */ | |
549 | /* rx_config device types */ | |
550 | enum { | |
551 | RXON_DEV_TYPE_AP = 1, | |
552 | RXON_DEV_TYPE_ESS = 3, | |
553 | RXON_DEV_TYPE_IBSS = 4, | |
554 | RXON_DEV_TYPE_SNIFFER = 6, | |
555 | }; | |
556 | ||
557 | ||
558 | #define RXON_RX_CHAIN_DRIVER_FORCE_MSK cpu_to_le16(0x1 << 0) | |
559 | #define RXON_RX_CHAIN_DRIVER_FORCE_POS (0) | |
560 | #define RXON_RX_CHAIN_VALID_MSK cpu_to_le16(0x7 << 1) | |
561 | #define RXON_RX_CHAIN_VALID_POS (1) | |
562 | #define RXON_RX_CHAIN_FORCE_SEL_MSK cpu_to_le16(0x7 << 4) | |
563 | #define RXON_RX_CHAIN_FORCE_SEL_POS (4) | |
564 | #define RXON_RX_CHAIN_FORCE_MIMO_SEL_MSK cpu_to_le16(0x7 << 7) | |
565 | #define RXON_RX_CHAIN_FORCE_MIMO_SEL_POS (7) | |
566 | #define RXON_RX_CHAIN_CNT_MSK cpu_to_le16(0x3 << 10) | |
567 | #define RXON_RX_CHAIN_CNT_POS (10) | |
568 | #define RXON_RX_CHAIN_MIMO_CNT_MSK cpu_to_le16(0x3 << 12) | |
569 | #define RXON_RX_CHAIN_MIMO_CNT_POS (12) | |
570 | #define RXON_RX_CHAIN_MIMO_FORCE_MSK cpu_to_le16(0x1 << 14) | |
571 | #define RXON_RX_CHAIN_MIMO_FORCE_POS (14) | |
572 | ||
573 | /* rx_config flags */ | |
574 | /* band & modulation selection */ | |
575 | #define RXON_FLG_BAND_24G_MSK cpu_to_le32(1 << 0) | |
576 | #define RXON_FLG_CCK_MSK cpu_to_le32(1 << 1) | |
577 | /* auto detection enable */ | |
578 | #define RXON_FLG_AUTO_DETECT_MSK cpu_to_le32(1 << 2) | |
579 | /* TGg protection when tx */ | |
580 | #define RXON_FLG_TGG_PROTECT_MSK cpu_to_le32(1 << 3) | |
581 | /* cck short slot & preamble */ | |
582 | #define RXON_FLG_SHORT_SLOT_MSK cpu_to_le32(1 << 4) | |
583 | #define RXON_FLG_SHORT_PREAMBLE_MSK cpu_to_le32(1 << 5) | |
584 | /* antenna selection */ | |
585 | #define RXON_FLG_DIS_DIV_MSK cpu_to_le32(1 << 7) | |
586 | #define RXON_FLG_ANT_SEL_MSK cpu_to_le32(0x0f00) | |
587 | #define RXON_FLG_ANT_A_MSK cpu_to_le32(1 << 8) | |
588 | #define RXON_FLG_ANT_B_MSK cpu_to_le32(1 << 9) | |
589 | /* radar detection enable */ | |
590 | #define RXON_FLG_RADAR_DETECT_MSK cpu_to_le32(1 << 12) | |
591 | #define RXON_FLG_TGJ_NARROW_BAND_MSK cpu_to_le32(1 << 13) | |
592 | /* rx response to host with 8-byte TSF | |
593 | * (according to ON_AIR deassertion) */ | |
594 | #define RXON_FLG_TSF2HOST_MSK cpu_to_le32(1 << 15) | |
595 | ||
596 | ||
597 | /* HT flags */ | |
598 | #define RXON_FLG_CTRL_CHANNEL_LOC_POS (22) | |
599 | #define RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK cpu_to_le32(0x1 << 22) | |
600 | ||
601 | #define RXON_FLG_HT_OPERATING_MODE_POS (23) | |
602 | ||
603 | #define RXON_FLG_HT_PROT_MSK cpu_to_le32(0x1 << 23) | |
604 | #define RXON_FLG_HT40_PROT_MSK cpu_to_le32(0x2 << 23) | |
605 | ||
606 | #define RXON_FLG_CHANNEL_MODE_POS (25) | |
607 | #define RXON_FLG_CHANNEL_MODE_MSK cpu_to_le32(0x3 << 25) | |
608 | ||
609 | /* channel mode */ | |
610 | enum { | |
611 | CHANNEL_MODE_LEGACY = 0, | |
612 | CHANNEL_MODE_PURE_40 = 1, | |
613 | CHANNEL_MODE_MIXED = 2, | |
614 | CHANNEL_MODE_RESERVED = 3, | |
615 | }; | |
616 | #define RXON_FLG_CHANNEL_MODE_LEGACY \ | |
617 | cpu_to_le32(CHANNEL_MODE_LEGACY << RXON_FLG_CHANNEL_MODE_POS) | |
618 | #define RXON_FLG_CHANNEL_MODE_PURE_40 \ | |
619 | cpu_to_le32(CHANNEL_MODE_PURE_40 << RXON_FLG_CHANNEL_MODE_POS) | |
620 | #define RXON_FLG_CHANNEL_MODE_MIXED \ | |
621 | cpu_to_le32(CHANNEL_MODE_MIXED << RXON_FLG_CHANNEL_MODE_POS) | |
622 | ||
623 | /* CTS to self (if spec allows) flag */ | |
624 | #define RXON_FLG_SELF_CTS_EN cpu_to_le32(0x1<<30) | |
625 | ||
626 | /* rx_config filter flags */ | |
627 | /* accept all data frames */ | |
628 | #define RXON_FILTER_PROMISC_MSK cpu_to_le32(1 << 0) | |
629 | /* pass control & management to host */ | |
630 | #define RXON_FILTER_CTL2HOST_MSK cpu_to_le32(1 << 1) | |
631 | /* accept multi-cast */ | |
632 | #define RXON_FILTER_ACCEPT_GRP_MSK cpu_to_le32(1 << 2) | |
633 | /* don't decrypt uni-cast frames */ | |
634 | #define RXON_FILTER_DIS_DECRYPT_MSK cpu_to_le32(1 << 3) | |
635 | /* don't decrypt multi-cast frames */ | |
636 | #define RXON_FILTER_DIS_GRP_DECRYPT_MSK cpu_to_le32(1 << 4) | |
637 | /* STA is associated */ | |
638 | #define RXON_FILTER_ASSOC_MSK cpu_to_le32(1 << 5) | |
639 | /* transfer to host non bssid beacons in associated state */ | |
640 | #define RXON_FILTER_BCON_AWARE_MSK cpu_to_le32(1 << 6) | |
641 | ||
642 | /** | |
643 | * REPLY_RXON = 0x10 (command, has simple generic response) | |
644 | * | |
645 | * RXON tunes the radio tuner to a service channel, and sets up a number | |
646 | * of parameters that are used primarily for Rx, but also for Tx operations. | |
647 | * | |
648 | * NOTE: When tuning to a new channel, driver must set the | |
649 | * RXON_FILTER_ASSOC_MSK to 0. This will clear station-dependent | |
650 | * info within the device, including the station tables, tx retry | |
651 | * rate tables, and txpower tables. Driver must build a new station | |
652 | * table and txpower table before transmitting anything on the RXON | |
653 | * channel. | |
654 | * | |
655 | * NOTE: All RXONs wipe clean the internal txpower table. Driver must | |
656 | * issue a new REPLY_TX_PWR_TABLE_CMD after each REPLY_RXON (0x10), | |
657 | * regardless of whether RXON_FILTER_ASSOC_MSK is set. | |
658 | */ | |
659 | ||
e2ebc833 | 660 | struct il3945_rxon_cmd { |
be663ab6 WYG |
661 | u8 node_addr[6]; |
662 | __le16 reserved1; | |
663 | u8 bssid_addr[6]; | |
664 | __le16 reserved2; | |
665 | u8 wlap_bssid_addr[6]; | |
666 | __le16 reserved3; | |
667 | u8 dev_type; | |
668 | u8 air_propagation; | |
669 | __le16 reserved4; | |
670 | u8 ofdm_basic_rates; | |
671 | u8 cck_basic_rates; | |
672 | __le16 assoc_id; | |
673 | __le32 flags; | |
674 | __le32 filter_flags; | |
675 | __le16 channel; | |
676 | __le16 reserved5; | |
677 | } __packed; | |
678 | ||
e2ebc833 | 679 | struct il4965_rxon_cmd { |
be663ab6 WYG |
680 | u8 node_addr[6]; |
681 | __le16 reserved1; | |
682 | u8 bssid_addr[6]; | |
683 | __le16 reserved2; | |
684 | u8 wlap_bssid_addr[6]; | |
685 | __le16 reserved3; | |
686 | u8 dev_type; | |
687 | u8 air_propagation; | |
688 | __le16 rx_chain; | |
689 | u8 ofdm_basic_rates; | |
690 | u8 cck_basic_rates; | |
691 | __le16 assoc_id; | |
692 | __le32 flags; | |
693 | __le32 filter_flags; | |
694 | __le16 channel; | |
695 | u8 ofdm_ht_single_stream_basic_rates; | |
696 | u8 ofdm_ht_dual_stream_basic_rates; | |
697 | } __packed; | |
698 | ||
699 | /* Create a common rxon cmd which will be typecast into the 3945 or 4965 | |
700 | * specific rxon cmd, depending on where it is called from. | |
701 | */ | |
e2ebc833 | 702 | struct il_rxon_cmd { |
be663ab6 WYG |
703 | u8 node_addr[6]; |
704 | __le16 reserved1; | |
705 | u8 bssid_addr[6]; | |
706 | __le16 reserved2; | |
707 | u8 wlap_bssid_addr[6]; | |
708 | __le16 reserved3; | |
709 | u8 dev_type; | |
710 | u8 air_propagation; | |
711 | __le16 rx_chain; | |
712 | u8 ofdm_basic_rates; | |
713 | u8 cck_basic_rates; | |
714 | __le16 assoc_id; | |
715 | __le32 flags; | |
716 | __le32 filter_flags; | |
717 | __le16 channel; | |
718 | u8 ofdm_ht_single_stream_basic_rates; | |
719 | u8 ofdm_ht_dual_stream_basic_rates; | |
720 | u8 reserved4; | |
721 | u8 reserved5; | |
722 | } __packed; | |
723 | ||
724 | ||
725 | /* | |
726 | * REPLY_RXON_ASSOC = 0x11 (command, has simple generic response) | |
727 | */ | |
e2ebc833 | 728 | struct il3945_rxon_assoc_cmd { |
be663ab6 WYG |
729 | __le32 flags; |
730 | __le32 filter_flags; | |
731 | u8 ofdm_basic_rates; | |
732 | u8 cck_basic_rates; | |
733 | __le16 reserved; | |
734 | } __packed; | |
735 | ||
e2ebc833 | 736 | struct il4965_rxon_assoc_cmd { |
be663ab6 WYG |
737 | __le32 flags; |
738 | __le32 filter_flags; | |
739 | u8 ofdm_basic_rates; | |
740 | u8 cck_basic_rates; | |
741 | u8 ofdm_ht_single_stream_basic_rates; | |
742 | u8 ofdm_ht_dual_stream_basic_rates; | |
743 | __le16 rx_chain_select_flags; | |
744 | __le16 reserved; | |
745 | } __packed; | |
746 | ||
e2ebc833 SG |
747 | #define IL_CONN_MAX_LISTEN_INTERVAL 10 |
748 | #define IL_MAX_UCODE_BEACON_INTERVAL 4 /* 4096 */ | |
d3175167 | 749 | #define IL39_MAX_UCODE_BEACON_INTERVAL 1 /* 1024 */ |
be663ab6 WYG |
750 | |
751 | /* | |
752 | * REPLY_RXON_TIMING = 0x14 (command, has simple generic response) | |
753 | */ | |
e2ebc833 | 754 | struct il_rxon_time_cmd { |
be663ab6 WYG |
755 | __le64 timestamp; |
756 | __le16 beacon_interval; | |
757 | __le16 atim_window; | |
758 | __le32 beacon_init_val; | |
759 | __le16 listen_interval; | |
760 | u8 dtim_period; | |
761 | u8 delta_cp_bss_tbtts; | |
762 | } __packed; | |
763 | ||
764 | /* | |
765 | * REPLY_CHANNEL_SWITCH = 0x72 (command, has simple generic response) | |
766 | */ | |
e2ebc833 | 767 | struct il3945_channel_switch_cmd { |
be663ab6 WYG |
768 | u8 band; |
769 | u8 expect_beacon; | |
770 | __le16 channel; | |
771 | __le32 rxon_flags; | |
772 | __le32 rxon_filter_flags; | |
773 | __le32 switch_time; | |
e2ebc833 | 774 | struct il3945_power_per_rate power[IL_MAX_RATES]; |
be663ab6 WYG |
775 | } __packed; |
776 | ||
e2ebc833 | 777 | struct il4965_channel_switch_cmd { |
be663ab6 WYG |
778 | u8 band; |
779 | u8 expect_beacon; | |
780 | __le16 channel; | |
781 | __le32 rxon_flags; | |
782 | __le32 rxon_filter_flags; | |
783 | __le32 switch_time; | |
e2ebc833 | 784 | struct il4965_tx_power_db tx_power; |
be663ab6 WYG |
785 | } __packed; |
786 | ||
787 | /* | |
788 | * CHANNEL_SWITCH_NOTIFICATION = 0x73 (notification only, not a command) | |
789 | */ | |
e2ebc833 | 790 | struct il_csa_notification { |
be663ab6 WYG |
791 | __le16 band; |
792 | __le16 channel; | |
793 | __le32 status; /* 0 - OK, 1 - fail */ | |
794 | } __packed; | |
795 | ||
796 | /****************************************************************************** | |
797 | * (2) | |
798 | * Quality-of-Service (QOS) Commands & Responses: | |
799 | * | |
800 | *****************************************************************************/ | |
801 | ||
802 | /** | |
e2ebc833 SG |
803 | * struct il_ac_qos -- QOS timing params for REPLY_QOS_PARAM |
804 | * One for each of 4 EDCA access categories in struct il_qosparam_cmd | |
be663ab6 WYG |
805 | * |
806 | * @cw_min: Contention window, start value in numbers of slots. | |
807 | * Should be a power-of-2, minus 1. Device's default is 0x0f. | |
808 | * @cw_max: Contention window, max value in numbers of slots. | |
809 | * Should be a power-of-2, minus 1. Device's default is 0x3f. | |
810 | * @aifsn: Number of slots in Arbitration Interframe Space (before | |
811 | * performing random backoff timing prior to Tx). Device default 1. | |
812 | * @edca_txop: Length of Tx opportunity, in uSecs. Device default is 0. | |
813 | * | |
814 | * Device will automatically increase contention window by (2*CW) + 1 for each | |
815 | * transmission retry. Device uses cw_max as a bit mask, ANDed with new CW | |
816 | * value, to cap the CW value. | |
817 | */ | |
e2ebc833 | 818 | struct il_ac_qos { |
be663ab6 WYG |
819 | __le16 cw_min; |
820 | __le16 cw_max; | |
821 | u8 aifsn; | |
822 | u8 reserved1; | |
823 | __le16 edca_txop; | |
824 | } __packed; | |
825 | ||
826 | /* QoS flags defines */ | |
827 | #define QOS_PARAM_FLG_UPDATE_EDCA_MSK cpu_to_le32(0x01) | |
828 | #define QOS_PARAM_FLG_TGN_MSK cpu_to_le32(0x02) | |
829 | #define QOS_PARAM_FLG_TXOP_TYPE_MSK cpu_to_le32(0x10) | |
830 | ||
831 | /* Number of Access Categories (AC) (EDCA), queues 0..3 */ | |
832 | #define AC_NUM 4 | |
833 | ||
834 | /* | |
835 | * REPLY_QOS_PARAM = 0x13 (command, has simple generic response) | |
836 | * | |
837 | * This command sets up timings for each of the 4 prioritized EDCA Tx FIFOs | |
838 | * 0: Background, 1: Best Effort, 2: Video, 3: Voice. | |
839 | */ | |
e2ebc833 | 840 | struct il_qosparam_cmd { |
be663ab6 | 841 | __le32 qos_flags; |
e2ebc833 | 842 | struct il_ac_qos ac[AC_NUM]; |
be663ab6 WYG |
843 | } __packed; |
844 | ||
845 | /****************************************************************************** | |
846 | * (3) | |
847 | * Add/Modify Stations Commands & Responses: | |
848 | * | |
849 | *****************************************************************************/ | |
850 | /* | |
851 | * Multi station support | |
852 | */ | |
853 | ||
854 | /* Special, dedicated locations within device's station table */ | |
e2ebc833 SG |
855 | #define IL_AP_ID 0 |
856 | #define IL_STA_ID 2 | |
d3175167 SG |
857 | #define IL3945_BROADCAST_ID 24 |
858 | #define IL3945_STATION_COUNT 25 | |
859 | #define IL4965_BROADCAST_ID 31 | |
860 | #define IL4965_STATION_COUNT 32 | |
be663ab6 | 861 | |
e2ebc833 SG |
862 | #define IL_STATION_COUNT 32 /* MAX(3945,4965)*/ |
863 | #define IL_INVALID_STATION 255 | |
be663ab6 WYG |
864 | |
865 | #define STA_FLG_TX_RATE_MSK cpu_to_le32(1 << 2) | |
866 | #define STA_FLG_PWR_SAVE_MSK cpu_to_le32(1 << 8) | |
867 | #define STA_FLG_RTS_MIMO_PROT_MSK cpu_to_le32(1 << 17) | |
868 | #define STA_FLG_AGG_MPDU_8US_MSK cpu_to_le32(1 << 18) | |
869 | #define STA_FLG_MAX_AGG_SIZE_POS (19) | |
870 | #define STA_FLG_MAX_AGG_SIZE_MSK cpu_to_le32(3 << 19) | |
871 | #define STA_FLG_HT40_EN_MSK cpu_to_le32(1 << 21) | |
872 | #define STA_FLG_MIMO_DIS_MSK cpu_to_le32(1 << 22) | |
873 | #define STA_FLG_AGG_MPDU_DENSITY_POS (23) | |
874 | #define STA_FLG_AGG_MPDU_DENSITY_MSK cpu_to_le32(7 << 23) | |
875 | ||
876 | /* Use in mode field. 1: modify existing entry, 0: add new station entry */ | |
877 | #define STA_CONTROL_MODIFY_MSK 0x01 | |
878 | ||
879 | /* key flags __le16*/ | |
880 | #define STA_KEY_FLG_ENCRYPT_MSK cpu_to_le16(0x0007) | |
881 | #define STA_KEY_FLG_NO_ENC cpu_to_le16(0x0000) | |
882 | #define STA_KEY_FLG_WEP cpu_to_le16(0x0001) | |
883 | #define STA_KEY_FLG_CCMP cpu_to_le16(0x0002) | |
884 | #define STA_KEY_FLG_TKIP cpu_to_le16(0x0003) | |
885 | ||
886 | #define STA_KEY_FLG_KEYID_POS 8 | |
887 | #define STA_KEY_FLG_INVALID cpu_to_le16(0x0800) | |
888 | /* wep key is either from global key (0) or from station info array (1) */ | |
889 | #define STA_KEY_FLG_MAP_KEY_MSK cpu_to_le16(0x0008) | |
890 | ||
891 | /* wep key in STA: 5-bytes (0) or 13-bytes (1) */ | |
892 | #define STA_KEY_FLG_KEY_SIZE_MSK cpu_to_le16(0x1000) | |
893 | #define STA_KEY_MULTICAST_MSK cpu_to_le16(0x4000) | |
894 | #define STA_KEY_MAX_NUM 8 | |
895 | ||
896 | /* Flags indicate whether to modify vs. don't change various station params */ | |
897 | #define STA_MODIFY_KEY_MASK 0x01 | |
898 | #define STA_MODIFY_TID_DISABLE_TX 0x02 | |
899 | #define STA_MODIFY_TX_RATE_MSK 0x04 | |
900 | #define STA_MODIFY_ADDBA_TID_MSK 0x08 | |
901 | #define STA_MODIFY_DELBA_TID_MSK 0x10 | |
902 | #define STA_MODIFY_SLEEP_TX_COUNT_MSK 0x20 | |
903 | ||
904 | /* Receiver address (actually, Rx station's index into station table), | |
905 | * combined with Traffic ID (QOS priority), in format used by Tx Scheduler */ | |
906 | #define BUILD_RAxTID(sta_id, tid) (((sta_id) << 4) + (tid)) | |
907 | ||
e2ebc833 | 908 | struct il4965_keyinfo { |
be663ab6 WYG |
909 | __le16 key_flags; |
910 | u8 tkip_rx_tsc_byte2; /* TSC[2] for key mix ph1 detection */ | |
911 | u8 reserved1; | |
912 | __le16 tkip_rx_ttak[5]; /* 10-byte unicast TKIP TTAK */ | |
913 | u8 key_offset; | |
914 | u8 reserved2; | |
915 | u8 key[16]; /* 16-byte unicast decryption key */ | |
916 | } __packed; | |
917 | ||
918 | /** | |
919 | * struct sta_id_modify | |
920 | * @addr[ETH_ALEN]: station's MAC address | |
921 | * @sta_id: index of station in uCode's station table | |
922 | * @modify_mask: STA_MODIFY_*, 1: modify, 0: don't change | |
923 | * | |
924 | * Driver selects unused table index when adding new station, | |
925 | * or the index to a pre-existing station entry when modifying that station. | |
e2ebc833 | 926 | * Some indexes have special purposes (IL_AP_ID, index 0, is for AP). |
be663ab6 WYG |
927 | * |
928 | * modify_mask flags select which parameters to modify vs. leave alone. | |
929 | */ | |
930 | struct sta_id_modify { | |
931 | u8 addr[ETH_ALEN]; | |
932 | __le16 reserved1; | |
933 | u8 sta_id; | |
934 | u8 modify_mask; | |
935 | __le16 reserved2; | |
936 | } __packed; | |
937 | ||
938 | /* | |
939 | * REPLY_ADD_STA = 0x18 (command) | |
940 | * | |
941 | * The device contains an internal table of per-station information, | |
942 | * with info on security keys, aggregation parameters, and Tx rates for | |
943 | * initial Tx attempt and any retries (4965 devices uses | |
944 | * REPLY_TX_LINK_QUALITY_CMD, | |
945 | * 3945 uses REPLY_RATE_SCALE to set up rate tables). | |
946 | * | |
947 | * REPLY_ADD_STA sets up the table entry for one station, either creating | |
948 | * a new entry, or modifying a pre-existing one. | |
949 | * | |
950 | * NOTE: RXON command (without "associated" bit set) wipes the station table | |
951 | * clean. Moving into RF_KILL state does this also. Driver must set up | |
952 | * new station table before transmitting anything on the RXON channel | |
953 | * (except active scans or active measurements; those commands carry | |
954 | * their own txpower/rate setup data). | |
955 | * | |
956 | * When getting started on a new channel, driver must set up the | |
e2ebc833 | 957 | * IL_BROADCAST_ID entry (last entry in the table). For a client |
be663ab6 | 958 | * station in a BSS, once an AP is selected, driver sets up the AP STA |
e2ebc833 | 959 | * in the IL_AP_ID entry (1st entry in the table). BROADCAST and AP |
be663ab6 WYG |
960 | * are all that are needed for a BSS client station. If the device is |
961 | * used as AP, or in an IBSS network, driver must set up station table | |
e2ebc833 | 962 | * entries for all STAs in network, starting with index IL_STA_ID. |
be663ab6 WYG |
963 | */ |
964 | ||
e2ebc833 | 965 | struct il3945_addsta_cmd { |
be663ab6 WYG |
966 | u8 mode; /* 1: modify existing, 0: add new station */ |
967 | u8 reserved[3]; | |
968 | struct sta_id_modify sta; | |
e2ebc833 | 969 | struct il4965_keyinfo key; |
be663ab6 WYG |
970 | __le32 station_flags; /* STA_FLG_* */ |
971 | __le32 station_flags_msk; /* STA_FLG_* */ | |
972 | ||
973 | /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID) | |
974 | * corresponding to bit (e.g. bit 5 controls TID 5). | |
975 | * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */ | |
976 | __le16 tid_disable_tx; | |
977 | ||
978 | __le16 rate_n_flags; | |
979 | ||
980 | /* TID for which to add block-ack support. | |
981 | * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ | |
982 | u8 add_immediate_ba_tid; | |
983 | ||
984 | /* TID for which to remove block-ack support. | |
985 | * Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */ | |
986 | u8 remove_immediate_ba_tid; | |
987 | ||
988 | /* Starting Sequence Number for added block-ack support. | |
989 | * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ | |
990 | __le16 add_immediate_ba_ssn; | |
991 | } __packed; | |
992 | ||
e2ebc833 | 993 | struct il4965_addsta_cmd { |
be663ab6 WYG |
994 | u8 mode; /* 1: modify existing, 0: add new station */ |
995 | u8 reserved[3]; | |
996 | struct sta_id_modify sta; | |
e2ebc833 | 997 | struct il4965_keyinfo key; |
be663ab6 WYG |
998 | __le32 station_flags; /* STA_FLG_* */ |
999 | __le32 station_flags_msk; /* STA_FLG_* */ | |
1000 | ||
1001 | /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID) | |
1002 | * corresponding to bit (e.g. bit 5 controls TID 5). | |
1003 | * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */ | |
1004 | __le16 tid_disable_tx; | |
1005 | ||
1006 | __le16 reserved1; | |
1007 | ||
1008 | /* TID for which to add block-ack support. | |
1009 | * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ | |
1010 | u8 add_immediate_ba_tid; | |
1011 | ||
1012 | /* TID for which to remove block-ack support. | |
1013 | * Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */ | |
1014 | u8 remove_immediate_ba_tid; | |
1015 | ||
1016 | /* Starting Sequence Number for added block-ack support. | |
1017 | * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ | |
1018 | __le16 add_immediate_ba_ssn; | |
1019 | ||
1020 | /* | |
1021 | * Number of packets OK to transmit to station even though | |
1022 | * it is asleep -- used to synchronise PS-poll and u-APSD | |
1023 | * responses while ucode keeps track of STA sleep state. | |
1024 | */ | |
1025 | __le16 sleep_tx_count; | |
1026 | ||
1027 | __le16 reserved2; | |
1028 | } __packed; | |
1029 | ||
1030 | /* Wrapper struct for 3945 and 4965 addsta_cmd structures */ | |
e2ebc833 | 1031 | struct il_addsta_cmd { |
be663ab6 WYG |
1032 | u8 mode; /* 1: modify existing, 0: add new station */ |
1033 | u8 reserved[3]; | |
1034 | struct sta_id_modify sta; | |
e2ebc833 | 1035 | struct il4965_keyinfo key; |
be663ab6 WYG |
1036 | __le32 station_flags; /* STA_FLG_* */ |
1037 | __le32 station_flags_msk; /* STA_FLG_* */ | |
1038 | ||
1039 | /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID) | |
1040 | * corresponding to bit (e.g. bit 5 controls TID 5). | |
1041 | * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */ | |
1042 | __le16 tid_disable_tx; | |
1043 | ||
1044 | __le16 rate_n_flags; /* 3945 only */ | |
1045 | ||
1046 | /* TID for which to add block-ack support. | |
1047 | * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ | |
1048 | u8 add_immediate_ba_tid; | |
1049 | ||
1050 | /* TID for which to remove block-ack support. | |
1051 | * Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */ | |
1052 | u8 remove_immediate_ba_tid; | |
1053 | ||
1054 | /* Starting Sequence Number for added block-ack support. | |
1055 | * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ | |
1056 | __le16 add_immediate_ba_ssn; | |
1057 | ||
1058 | /* | |
1059 | * Number of packets OK to transmit to station even though | |
1060 | * it is asleep -- used to synchronise PS-poll and u-APSD | |
1061 | * responses while ucode keeps track of STA sleep state. | |
1062 | */ | |
1063 | __le16 sleep_tx_count; | |
1064 | ||
1065 | __le16 reserved2; | |
1066 | } __packed; | |
1067 | ||
1068 | ||
1069 | #define ADD_STA_SUCCESS_MSK 0x1 | |
1070 | #define ADD_STA_NO_ROOM_IN_TABLE 0x2 | |
1071 | #define ADD_STA_NO_BLOCK_ACK_RESOURCE 0x4 | |
1072 | #define ADD_STA_MODIFY_NON_EXIST_STA 0x8 | |
1073 | /* | |
1074 | * REPLY_ADD_STA = 0x18 (response) | |
1075 | */ | |
e2ebc833 | 1076 | struct il_add_sta_resp { |
be663ab6 WYG |
1077 | u8 status; /* ADD_STA_* */ |
1078 | } __packed; | |
1079 | ||
1080 | #define REM_STA_SUCCESS_MSK 0x1 | |
1081 | /* | |
1082 | * REPLY_REM_STA = 0x19 (response) | |
1083 | */ | |
e2ebc833 | 1084 | struct il_rem_sta_resp { |
be663ab6 WYG |
1085 | u8 status; |
1086 | } __packed; | |
1087 | ||
1088 | /* | |
1089 | * REPLY_REM_STA = 0x19 (command) | |
1090 | */ | |
e2ebc833 | 1091 | struct il_rem_sta_cmd { |
be663ab6 WYG |
1092 | u8 num_sta; /* number of removed stations */ |
1093 | u8 reserved[3]; | |
1094 | u8 addr[ETH_ALEN]; /* MAC addr of the first station */ | |
1095 | u8 reserved2[2]; | |
1096 | } __packed; | |
1097 | ||
e2ebc833 SG |
1098 | #define IL_TX_FIFO_BK_MSK cpu_to_le32(BIT(0)) |
1099 | #define IL_TX_FIFO_BE_MSK cpu_to_le32(BIT(1)) | |
1100 | #define IL_TX_FIFO_VI_MSK cpu_to_le32(BIT(2)) | |
1101 | #define IL_TX_FIFO_VO_MSK cpu_to_le32(BIT(3)) | |
1102 | #define IL_AGG_TX_QUEUE_MSK cpu_to_le32(0xffc00) | |
be663ab6 | 1103 | |
e2ebc833 SG |
1104 | #define IL_DROP_SINGLE 0 |
1105 | #define IL_DROP_SELECTED 1 | |
1106 | #define IL_DROP_ALL 2 | |
be663ab6 WYG |
1107 | |
1108 | /* | |
1109 | * REPLY_WEP_KEY = 0x20 | |
1110 | */ | |
e2ebc833 | 1111 | struct il_wep_key { |
be663ab6 WYG |
1112 | u8 key_index; |
1113 | u8 key_offset; | |
1114 | u8 reserved1[2]; | |
1115 | u8 key_size; | |
1116 | u8 reserved2[3]; | |
1117 | u8 key[16]; | |
1118 | } __packed; | |
1119 | ||
e2ebc833 | 1120 | struct il_wep_cmd { |
be663ab6 WYG |
1121 | u8 num_keys; |
1122 | u8 global_key_type; | |
1123 | u8 flags; | |
1124 | u8 reserved; | |
e2ebc833 | 1125 | struct il_wep_key key[0]; |
be663ab6 WYG |
1126 | } __packed; |
1127 | ||
1128 | #define WEP_KEY_WEP_TYPE 1 | |
1129 | #define WEP_KEYS_MAX 4 | |
1130 | #define WEP_INVALID_OFFSET 0xff | |
1131 | #define WEP_KEY_LEN_64 5 | |
1132 | #define WEP_KEY_LEN_128 13 | |
1133 | ||
1134 | /****************************************************************************** | |
1135 | * (4) | |
1136 | * Rx Responses: | |
1137 | * | |
1138 | *****************************************************************************/ | |
1139 | ||
1140 | #define RX_RES_STATUS_NO_CRC32_ERROR cpu_to_le32(1 << 0) | |
1141 | #define RX_RES_STATUS_NO_RXE_OVERFLOW cpu_to_le32(1 << 1) | |
1142 | ||
1143 | #define RX_RES_PHY_FLAGS_BAND_24_MSK cpu_to_le16(1 << 0) | |
1144 | #define RX_RES_PHY_FLAGS_MOD_CCK_MSK cpu_to_le16(1 << 1) | |
1145 | #define RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK cpu_to_le16(1 << 2) | |
1146 | #define RX_RES_PHY_FLAGS_NARROW_BAND_MSK cpu_to_le16(1 << 3) | |
1147 | #define RX_RES_PHY_FLAGS_ANTENNA_MSK 0xf0 | |
1148 | #define RX_RES_PHY_FLAGS_ANTENNA_POS 4 | |
1149 | ||
1150 | #define RX_RES_STATUS_SEC_TYPE_MSK (0x7 << 8) | |
1151 | #define RX_RES_STATUS_SEC_TYPE_NONE (0x0 << 8) | |
1152 | #define RX_RES_STATUS_SEC_TYPE_WEP (0x1 << 8) | |
1153 | #define RX_RES_STATUS_SEC_TYPE_CCMP (0x2 << 8) | |
1154 | #define RX_RES_STATUS_SEC_TYPE_TKIP (0x3 << 8) | |
1155 | #define RX_RES_STATUS_SEC_TYPE_ERR (0x7 << 8) | |
1156 | ||
1157 | #define RX_RES_STATUS_STATION_FOUND (1<<6) | |
1158 | #define RX_RES_STATUS_NO_STATION_INFO_MISMATCH (1<<7) | |
1159 | ||
1160 | #define RX_RES_STATUS_DECRYPT_TYPE_MSK (0x3 << 11) | |
1161 | #define RX_RES_STATUS_NOT_DECRYPT (0x0 << 11) | |
1162 | #define RX_RES_STATUS_DECRYPT_OK (0x3 << 11) | |
1163 | #define RX_RES_STATUS_BAD_ICV_MIC (0x1 << 11) | |
1164 | #define RX_RES_STATUS_BAD_KEY_TTAK (0x2 << 11) | |
1165 | ||
1166 | #define RX_MPDU_RES_STATUS_ICV_OK (0x20) | |
1167 | #define RX_MPDU_RES_STATUS_MIC_OK (0x40) | |
1168 | #define RX_MPDU_RES_STATUS_TTAK_OK (1 << 7) | |
1169 | #define RX_MPDU_RES_STATUS_DEC_DONE_MSK (0x800) | |
1170 | ||
1171 | ||
e2ebc833 | 1172 | struct il3945_rx_frame_stats { |
be663ab6 WYG |
1173 | u8 phy_count; |
1174 | u8 id; | |
1175 | u8 rssi; | |
1176 | u8 agc; | |
1177 | __le16 sig_avg; | |
1178 | __le16 noise_diff; | |
1179 | u8 payload[0]; | |
1180 | } __packed; | |
1181 | ||
e2ebc833 | 1182 | struct il3945_rx_frame_hdr { |
be663ab6 WYG |
1183 | __le16 channel; |
1184 | __le16 phy_flags; | |
1185 | u8 reserved1; | |
1186 | u8 rate; | |
1187 | __le16 len; | |
1188 | u8 payload[0]; | |
1189 | } __packed; | |
1190 | ||
e2ebc833 | 1191 | struct il3945_rx_frame_end { |
be663ab6 WYG |
1192 | __le32 status; |
1193 | __le64 timestamp; | |
1194 | __le32 beacon_timestamp; | |
1195 | } __packed; | |
1196 | ||
1197 | /* | |
1198 | * REPLY_3945_RX = 0x1b (response only, not a command) | |
1199 | * | |
1200 | * NOTE: DO NOT dereference from casts to this structure | |
1201 | * It is provided only for calculating minimum data set size. | |
1202 | * The actual offsets of the hdr and end are dynamic based on | |
1203 | * stats.phy_count | |
1204 | */ | |
e2ebc833 SG |
1205 | struct il3945_rx_frame { |
1206 | struct il3945_rx_frame_stats stats; | |
1207 | struct il3945_rx_frame_hdr hdr; | |
1208 | struct il3945_rx_frame_end end; | |
be663ab6 WYG |
1209 | } __packed; |
1210 | ||
d3175167 | 1211 | #define IL39_RX_FRAME_SIZE (4 + sizeof(struct il3945_rx_frame)) |
be663ab6 WYG |
1212 | |
1213 | /* Fixed (non-configurable) rx data from phy */ | |
1214 | ||
d3175167 SG |
1215 | #define IL49_RX_RES_PHY_CNT 14 |
1216 | #define IL49_RX_PHY_FLAGS_ANTENNAE_OFFSET (4) | |
1217 | #define IL49_RX_PHY_FLAGS_ANTENNAE_MASK (0x70) | |
1218 | #define IL49_AGC_DB_MASK (0x3f80) /* MASK(7,13) */ | |
1219 | #define IL49_AGC_DB_POS (7) | |
e2ebc833 | 1220 | struct il4965_rx_non_cfg_phy { |
be663ab6 WYG |
1221 | __le16 ant_selection; /* ant A bit 4, ant B bit 5, ant C bit 6 */ |
1222 | __le16 agc_info; /* agc code 0:6, agc dB 7:13, reserved 14:15 */ | |
1223 | u8 rssi_info[6]; /* we use even entries, 0/2/4 for A/B/C rssi */ | |
1224 | u8 pad[0]; | |
1225 | } __packed; | |
1226 | ||
1227 | ||
1228 | /* | |
1229 | * REPLY_RX = 0xc3 (response only, not a command) | |
1230 | * Used only for legacy (non 11n) frames. | |
1231 | */ | |
e2ebc833 | 1232 | struct il_rx_phy_res { |
be663ab6 WYG |
1233 | u8 non_cfg_phy_cnt; /* non configurable DSP phy data byte count */ |
1234 | u8 cfg_phy_cnt; /* configurable DSP phy data byte count */ | |
1235 | u8 stat_id; /* configurable DSP phy data set ID */ | |
1236 | u8 reserved1; | |
1237 | __le64 timestamp; /* TSF at on air rise */ | |
1238 | __le32 beacon_time_stamp; /* beacon at on-air rise */ | |
1239 | __le16 phy_flags; /* general phy flags: band, modulation, ... */ | |
1240 | __le16 channel; /* channel number */ | |
1241 | u8 non_cfg_phy_buf[32]; /* for various implementations of non_cfg_phy */ | |
1242 | __le32 rate_n_flags; /* RATE_MCS_* */ | |
1243 | __le16 byte_count; /* frame's byte-count */ | |
1244 | __le16 frame_time; /* frame's time on the air */ | |
1245 | } __packed; | |
1246 | ||
e2ebc833 | 1247 | struct il_rx_mpdu_res_start { |
be663ab6 WYG |
1248 | __le16 byte_count; |
1249 | __le16 reserved; | |
1250 | } __packed; | |
1251 | ||
1252 | ||
1253 | /****************************************************************************** | |
1254 | * (5) | |
1255 | * Tx Commands & Responses: | |
1256 | * | |
1257 | * Driver must place each REPLY_TX command into one of the prioritized Tx | |
1258 | * queues in host DRAM, shared between driver and device (see comments for | |
1259 | * SCD registers and Tx/Rx Queues). When the device's Tx scheduler and uCode | |
1260 | * are preparing to transmit, the device pulls the Tx command over the PCI | |
1261 | * bus via one of the device's Tx DMA channels, to fill an internal FIFO | |
1262 | * from which data will be transmitted. | |
1263 | * | |
1264 | * uCode handles all timing and protocol related to control frames | |
1265 | * (RTS/CTS/ACK), based on flags in the Tx command. uCode and Tx scheduler | |
1266 | * handle reception of block-acks; uCode updates the host driver via | |
1267 | * REPLY_COMPRESSED_BA. | |
1268 | * | |
1269 | * uCode handles retrying Tx when an ACK is expected but not received. | |
1270 | * This includes trying lower data rates than the one requested in the Tx | |
1271 | * command, as set up by the REPLY_RATE_SCALE (for 3945) or | |
1272 | * REPLY_TX_LINK_QUALITY_CMD (4965). | |
1273 | * | |
1274 | * Driver sets up transmit power for various rates via REPLY_TX_PWR_TABLE_CMD. | |
1275 | * This command must be executed after every RXON command, before Tx can occur. | |
1276 | *****************************************************************************/ | |
1277 | ||
1278 | /* REPLY_TX Tx flags field */ | |
1279 | ||
1280 | /* | |
1281 | * 1: Use Request-To-Send protocol before this frame. | |
1282 | * Mutually exclusive vs. TX_CMD_FLG_CTS_MSK. | |
1283 | */ | |
1284 | #define TX_CMD_FLG_RTS_MSK cpu_to_le32(1 << 1) | |
1285 | ||
1286 | /* | |
1287 | * 1: Transmit Clear-To-Send to self before this frame. | |
1288 | * Driver should set this for AUTH/DEAUTH/ASSOC-REQ/REASSOC mgmnt frames. | |
1289 | * Mutually exclusive vs. TX_CMD_FLG_RTS_MSK. | |
1290 | */ | |
1291 | #define TX_CMD_FLG_CTS_MSK cpu_to_le32(1 << 2) | |
1292 | ||
1293 | /* 1: Expect ACK from receiving station | |
1294 | * 0: Don't expect ACK (MAC header's duration field s/b 0) | |
1295 | * Set this for unicast frames, but not broadcast/multicast. */ | |
1296 | #define TX_CMD_FLG_ACK_MSK cpu_to_le32(1 << 3) | |
1297 | ||
1298 | /* For 4965 devices: | |
1299 | * 1: Use rate scale table (see REPLY_TX_LINK_QUALITY_CMD). | |
1300 | * Tx command's initial_rate_index indicates first rate to try; | |
1301 | * uCode walks through table for additional Tx attempts. | |
1302 | * 0: Use Tx rate/MCS from Tx command's rate_n_flags field. | |
1303 | * This rate will be used for all Tx attempts; it will not be scaled. */ | |
1304 | #define TX_CMD_FLG_STA_RATE_MSK cpu_to_le32(1 << 4) | |
1305 | ||
1306 | /* 1: Expect immediate block-ack. | |
1307 | * Set when Txing a block-ack request frame. Also set TX_CMD_FLG_ACK_MSK. */ | |
1308 | #define TX_CMD_FLG_IMM_BA_RSP_MASK cpu_to_le32(1 << 6) | |
1309 | ||
1310 | /* | |
1311 | * 1: Frame requires full Tx-Op protection. | |
1312 | * Set this if either RTS or CTS Tx Flag gets set. | |
1313 | */ | |
1314 | #define TX_CMD_FLG_FULL_TXOP_PROT_MSK cpu_to_le32(1 << 7) | |
1315 | ||
1316 | /* Tx antenna selection field; used only for 3945, reserved (0) for 4965 devices. | |
1317 | * Set field to "0" to allow 3945 uCode to select antenna (normal usage). */ | |
1318 | #define TX_CMD_FLG_ANT_SEL_MSK cpu_to_le32(0xf00) | |
1319 | #define TX_CMD_FLG_ANT_A_MSK cpu_to_le32(1 << 8) | |
1320 | #define TX_CMD_FLG_ANT_B_MSK cpu_to_le32(1 << 9) | |
1321 | ||
1322 | /* 1: uCode overrides sequence control field in MAC header. | |
1323 | * 0: Driver provides sequence control field in MAC header. | |
1324 | * Set this for management frames, non-QOS data frames, non-unicast frames, | |
1325 | * and also in Tx command embedded in REPLY_SCAN_CMD for active scans. */ | |
1326 | #define TX_CMD_FLG_SEQ_CTL_MSK cpu_to_le32(1 << 13) | |
1327 | ||
1328 | /* 1: This frame is non-last MPDU; more fragments are coming. | |
1329 | * 0: Last fragment, or not using fragmentation. */ | |
1330 | #define TX_CMD_FLG_MORE_FRAG_MSK cpu_to_le32(1 << 14) | |
1331 | ||
1332 | /* 1: uCode calculates and inserts Timestamp Function (TSF) in outgoing frame. | |
1333 | * 0: No TSF required in outgoing frame. | |
1334 | * Set this for transmitting beacons and probe responses. */ | |
1335 | #define TX_CMD_FLG_TSF_MSK cpu_to_le32(1 << 16) | |
1336 | ||
1337 | /* 1: Driver inserted 2 bytes pad after the MAC header, for (required) dword | |
1338 | * alignment of frame's payload data field. | |
1339 | * 0: No pad | |
1340 | * Set this for MAC headers with 26 or 30 bytes, i.e. those with QOS or ADDR4 | |
1341 | * field (but not both). Driver must align frame data (i.e. data following | |
1342 | * MAC header) to DWORD boundary. */ | |
1343 | #define TX_CMD_FLG_MH_PAD_MSK cpu_to_le32(1 << 20) | |
1344 | ||
1345 | /* accelerate aggregation support | |
1346 | * 0 - no CCMP encryption; 1 - CCMP encryption */ | |
1347 | #define TX_CMD_FLG_AGG_CCMP_MSK cpu_to_le32(1 << 22) | |
1348 | ||
1349 | /* HCCA-AP - disable duration overwriting. */ | |
1350 | #define TX_CMD_FLG_DUR_MSK cpu_to_le32(1 << 25) | |
1351 | ||
1352 | ||
1353 | /* | |
1354 | * TX command security control | |
1355 | */ | |
1356 | #define TX_CMD_SEC_WEP 0x01 | |
1357 | #define TX_CMD_SEC_CCM 0x02 | |
1358 | #define TX_CMD_SEC_TKIP 0x03 | |
1359 | #define TX_CMD_SEC_MSK 0x03 | |
1360 | #define TX_CMD_SEC_SHIFT 6 | |
1361 | #define TX_CMD_SEC_KEY128 0x08 | |
1362 | ||
1363 | /* | |
1364 | * security overhead sizes | |
1365 | */ | |
1366 | #define WEP_IV_LEN 4 | |
1367 | #define WEP_ICV_LEN 4 | |
1368 | #define CCMP_MIC_LEN 8 | |
1369 | #define TKIP_ICV_LEN 4 | |
1370 | ||
1371 | /* | |
1372 | * REPLY_TX = 0x1c (command) | |
1373 | */ | |
1374 | ||
e2ebc833 | 1375 | struct il3945_tx_cmd { |
be663ab6 WYG |
1376 | /* |
1377 | * MPDU byte count: | |
1378 | * MAC header (24/26/30/32 bytes) + 2 bytes pad if 26/30 header size, | |
1379 | * + 8 byte IV for CCM or TKIP (not used for WEP) | |
1380 | * + Data payload | |
1381 | * + 8-byte MIC (not used for CCM/WEP) | |
1382 | * NOTE: Does not include Tx command bytes, post-MAC pad bytes, | |
1383 | * MIC (CCM) 8 bytes, ICV (WEP/TKIP/CKIP) 4 bytes, CRC 4 bytes.i | |
1384 | * Range: 14-2342 bytes. | |
1385 | */ | |
1386 | __le16 len; | |
1387 | ||
1388 | /* | |
1389 | * MPDU or MSDU byte count for next frame. | |
1390 | * Used for fragmentation and bursting, but not 11n aggregation. | |
1391 | * Same as "len", but for next frame. Set to 0 if not applicable. | |
1392 | */ | |
1393 | __le16 next_frame_len; | |
1394 | ||
1395 | __le32 tx_flags; /* TX_CMD_FLG_* */ | |
1396 | ||
1397 | u8 rate; | |
1398 | ||
1399 | /* Index of recipient station in uCode's station table */ | |
1400 | u8 sta_id; | |
1401 | u8 tid_tspec; | |
1402 | u8 sec_ctl; | |
1403 | u8 key[16]; | |
1404 | union { | |
1405 | u8 byte[8]; | |
1406 | __le16 word[4]; | |
1407 | __le32 dw[2]; | |
1408 | } tkip_mic; | |
1409 | __le32 next_frame_info; | |
1410 | union { | |
1411 | __le32 life_time; | |
1412 | __le32 attempt; | |
1413 | } stop_time; | |
1414 | u8 supp_rates[2]; | |
1415 | u8 rts_retry_limit; /*byte 50 */ | |
1416 | u8 data_retry_limit; /*byte 51 */ | |
1417 | union { | |
1418 | __le16 pm_frame_timeout; | |
1419 | __le16 attempt_duration; | |
1420 | } timeout; | |
1421 | ||
1422 | /* | |
1423 | * Duration of EDCA burst Tx Opportunity, in 32-usec units. | |
1424 | * Set this if txop time is not specified by HCCA protocol (e.g. by AP). | |
1425 | */ | |
1426 | __le16 driver_txop; | |
1427 | ||
1428 | /* | |
1429 | * MAC header goes here, followed by 2 bytes padding if MAC header | |
1430 | * length is 26 or 30 bytes, followed by payload data | |
1431 | */ | |
1432 | u8 payload[0]; | |
1433 | struct ieee80211_hdr hdr[0]; | |
1434 | } __packed; | |
1435 | ||
1436 | /* | |
1437 | * REPLY_TX = 0x1c (response) | |
1438 | */ | |
e2ebc833 | 1439 | struct il3945_tx_resp { |
be663ab6 WYG |
1440 | u8 failure_rts; |
1441 | u8 failure_frame; | |
1442 | u8 bt_kill_count; | |
1443 | u8 rate; | |
1444 | __le32 wireless_media_time; | |
1445 | __le32 status; /* TX status */ | |
1446 | } __packed; | |
1447 | ||
1448 | ||
1449 | /* | |
1450 | * 4965 uCode updates these Tx attempt count values in host DRAM. | |
1451 | * Used for managing Tx retries when expecting block-acks. | |
1452 | * Driver should set these fields to 0. | |
1453 | */ | |
e2ebc833 | 1454 | struct il_dram_scratch { |
be663ab6 WYG |
1455 | u8 try_cnt; /* Tx attempts */ |
1456 | u8 bt_kill_cnt; /* Tx attempts blocked by Bluetooth device */ | |
1457 | __le16 reserved; | |
1458 | } __packed; | |
1459 | ||
e2ebc833 | 1460 | struct il_tx_cmd { |
be663ab6 WYG |
1461 | /* |
1462 | * MPDU byte count: | |
1463 | * MAC header (24/26/30/32 bytes) + 2 bytes pad if 26/30 header size, | |
1464 | * + 8 byte IV for CCM or TKIP (not used for WEP) | |
1465 | * + Data payload | |
1466 | * + 8-byte MIC (not used for CCM/WEP) | |
1467 | * NOTE: Does not include Tx command bytes, post-MAC pad bytes, | |
1468 | * MIC (CCM) 8 bytes, ICV (WEP/TKIP/CKIP) 4 bytes, CRC 4 bytes.i | |
1469 | * Range: 14-2342 bytes. | |
1470 | */ | |
1471 | __le16 len; | |
1472 | ||
1473 | /* | |
1474 | * MPDU or MSDU byte count for next frame. | |
1475 | * Used for fragmentation and bursting, but not 11n aggregation. | |
1476 | * Same as "len", but for next frame. Set to 0 if not applicable. | |
1477 | */ | |
1478 | __le16 next_frame_len; | |
1479 | ||
1480 | __le32 tx_flags; /* TX_CMD_FLG_* */ | |
1481 | ||
1482 | /* uCode may modify this field of the Tx command (in host DRAM!). | |
1483 | * Driver must also set dram_lsb_ptr and dram_msb_ptr in this cmd. */ | |
e2ebc833 | 1484 | struct il_dram_scratch scratch; |
be663ab6 WYG |
1485 | |
1486 | /* Rate for *all* Tx attempts, if TX_CMD_FLG_STA_RATE_MSK is cleared. */ | |
1487 | __le32 rate_n_flags; /* RATE_MCS_* */ | |
1488 | ||
1489 | /* Index of destination station in uCode's station table */ | |
1490 | u8 sta_id; | |
1491 | ||
1492 | /* Type of security encryption: CCM or TKIP */ | |
1493 | u8 sec_ctl; /* TX_CMD_SEC_* */ | |
1494 | ||
1495 | /* | |
1496 | * Index into rate table (see REPLY_TX_LINK_QUALITY_CMD) for initial | |
1497 | * Tx attempt, if TX_CMD_FLG_STA_RATE_MSK is set. Normally "0" for | |
1498 | * data frames, this field may be used to selectively reduce initial | |
1499 | * rate (via non-0 value) for special frames (e.g. management), while | |
1500 | * still supporting rate scaling for all frames. | |
1501 | */ | |
1502 | u8 initial_rate_index; | |
1503 | u8 reserved; | |
1504 | u8 key[16]; | |
1505 | __le16 next_frame_flags; | |
1506 | __le16 reserved2; | |
1507 | union { | |
1508 | __le32 life_time; | |
1509 | __le32 attempt; | |
1510 | } stop_time; | |
1511 | ||
1512 | /* Host DRAM physical address pointer to "scratch" in this command. | |
1513 | * Must be dword aligned. "0" in dram_lsb_ptr disables usage. */ | |
1514 | __le32 dram_lsb_ptr; | |
1515 | u8 dram_msb_ptr; | |
1516 | ||
1517 | u8 rts_retry_limit; /*byte 50 */ | |
1518 | u8 data_retry_limit; /*byte 51 */ | |
1519 | u8 tid_tspec; | |
1520 | union { | |
1521 | __le16 pm_frame_timeout; | |
1522 | __le16 attempt_duration; | |
1523 | } timeout; | |
1524 | ||
1525 | /* | |
1526 | * Duration of EDCA burst Tx Opportunity, in 32-usec units. | |
1527 | * Set this if txop time is not specified by HCCA protocol (e.g. by AP). | |
1528 | */ | |
1529 | __le16 driver_txop; | |
1530 | ||
1531 | /* | |
1532 | * MAC header goes here, followed by 2 bytes padding if MAC header | |
1533 | * length is 26 or 30 bytes, followed by payload data | |
1534 | */ | |
1535 | u8 payload[0]; | |
1536 | struct ieee80211_hdr hdr[0]; | |
1537 | } __packed; | |
1538 | ||
1539 | /* TX command response is sent after *3945* transmission attempts. | |
1540 | * | |
1541 | * NOTES: | |
1542 | * | |
1543 | * TX_STATUS_FAIL_NEXT_FRAG | |
1544 | * | |
1545 | * If the fragment flag in the MAC header for the frame being transmitted | |
1546 | * is set and there is insufficient time to transmit the next frame, the | |
1547 | * TX status will be returned with 'TX_STATUS_FAIL_NEXT_FRAG'. | |
1548 | * | |
1549 | * TX_STATUS_FIFO_UNDERRUN | |
1550 | * | |
1551 | * Indicates the host did not provide bytes to the FIFO fast enough while | |
1552 | * a TX was in progress. | |
1553 | * | |
1554 | * TX_STATUS_FAIL_MGMNT_ABORT | |
1555 | * | |
1556 | * This status is only possible if the ABORT ON MGMT RX parameter was | |
1557 | * set to true with the TX command. | |
1558 | * | |
1559 | * If the MSB of the status parameter is set then an abort sequence is | |
1560 | * required. This sequence consists of the host activating the TX Abort | |
1561 | * control line, and then waiting for the TX Abort command response. This | |
1562 | * indicates that a the device is no longer in a transmit state, and that the | |
1563 | * command FIFO has been cleared. The host must then deactivate the TX Abort | |
1564 | * control line. Receiving is still allowed in this case. | |
1565 | */ | |
1566 | enum { | |
1567 | TX_3945_STATUS_SUCCESS = 0x01, | |
1568 | TX_3945_STATUS_DIRECT_DONE = 0x02, | |
1569 | TX_3945_STATUS_FAIL_SHORT_LIMIT = 0x82, | |
1570 | TX_3945_STATUS_FAIL_LONG_LIMIT = 0x83, | |
1571 | TX_3945_STATUS_FAIL_FIFO_UNDERRUN = 0x84, | |
1572 | TX_3945_STATUS_FAIL_MGMNT_ABORT = 0x85, | |
1573 | TX_3945_STATUS_FAIL_NEXT_FRAG = 0x86, | |
1574 | TX_3945_STATUS_FAIL_LIFE_EXPIRE = 0x87, | |
1575 | TX_3945_STATUS_FAIL_DEST_PS = 0x88, | |
1576 | TX_3945_STATUS_FAIL_ABORTED = 0x89, | |
1577 | TX_3945_STATUS_FAIL_BT_RETRY = 0x8a, | |
1578 | TX_3945_STATUS_FAIL_STA_INVALID = 0x8b, | |
1579 | TX_3945_STATUS_FAIL_FRAG_DROPPED = 0x8c, | |
1580 | TX_3945_STATUS_FAIL_TID_DISABLE = 0x8d, | |
1581 | TX_3945_STATUS_FAIL_FRAME_FLUSHED = 0x8e, | |
1582 | TX_3945_STATUS_FAIL_INSUFFICIENT_CF_POLL = 0x8f, | |
1583 | TX_3945_STATUS_FAIL_TX_LOCKED = 0x90, | |
1584 | TX_3945_STATUS_FAIL_NO_BEACON_ON_RADAR = 0x91, | |
1585 | }; | |
1586 | ||
1587 | /* | |
1588 | * TX command response is sent after *4965* transmission attempts. | |
1589 | * | |
1590 | * both postpone and abort status are expected behavior from uCode. there is | |
1591 | * no special operation required from driver; except for RFKILL_FLUSH, | |
1592 | * which required tx flush host command to flush all the tx frames in queues | |
1593 | */ | |
1594 | enum { | |
1595 | TX_STATUS_SUCCESS = 0x01, | |
1596 | TX_STATUS_DIRECT_DONE = 0x02, | |
1597 | /* postpone TX */ | |
1598 | TX_STATUS_POSTPONE_DELAY = 0x40, | |
1599 | TX_STATUS_POSTPONE_FEW_BYTES = 0x41, | |
1600 | TX_STATUS_POSTPONE_QUIET_PERIOD = 0x43, | |
1601 | TX_STATUS_POSTPONE_CALC_TTAK = 0x44, | |
1602 | /* abort TX */ | |
1603 | TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY = 0x81, | |
1604 | TX_STATUS_FAIL_SHORT_LIMIT = 0x82, | |
1605 | TX_STATUS_FAIL_LONG_LIMIT = 0x83, | |
1606 | TX_STATUS_FAIL_FIFO_UNDERRUN = 0x84, | |
1607 | TX_STATUS_FAIL_DRAIN_FLOW = 0x85, | |
1608 | TX_STATUS_FAIL_RFKILL_FLUSH = 0x86, | |
1609 | TX_STATUS_FAIL_LIFE_EXPIRE = 0x87, | |
1610 | TX_STATUS_FAIL_DEST_PS = 0x88, | |
1611 | TX_STATUS_FAIL_HOST_ABORTED = 0x89, | |
1612 | TX_STATUS_FAIL_BT_RETRY = 0x8a, | |
1613 | TX_STATUS_FAIL_STA_INVALID = 0x8b, | |
1614 | TX_STATUS_FAIL_FRAG_DROPPED = 0x8c, | |
1615 | TX_STATUS_FAIL_TID_DISABLE = 0x8d, | |
1616 | TX_STATUS_FAIL_FIFO_FLUSHED = 0x8e, | |
1617 | TX_STATUS_FAIL_INSUFFICIENT_CF_POLL = 0x8f, | |
1618 | TX_STATUS_FAIL_PASSIVE_NO_RX = 0x90, | |
1619 | TX_STATUS_FAIL_NO_BEACON_ON_RADAR = 0x91, | |
1620 | }; | |
1621 | ||
1622 | #define TX_PACKET_MODE_REGULAR 0x0000 | |
1623 | #define TX_PACKET_MODE_BURST_SEQ 0x0100 | |
1624 | #define TX_PACKET_MODE_BURST_FIRST 0x0200 | |
1625 | ||
1626 | enum { | |
1627 | TX_POWER_PA_NOT_ACTIVE = 0x0, | |
1628 | }; | |
1629 | ||
1630 | enum { | |
1631 | TX_STATUS_MSK = 0x000000ff, /* bits 0:7 */ | |
1632 | TX_STATUS_DELAY_MSK = 0x00000040, | |
1633 | TX_STATUS_ABORT_MSK = 0x00000080, | |
1634 | TX_PACKET_MODE_MSK = 0x0000ff00, /* bits 8:15 */ | |
1635 | TX_FIFO_NUMBER_MSK = 0x00070000, /* bits 16:18 */ | |
1636 | TX_RESERVED = 0x00780000, /* bits 19:22 */ | |
1637 | TX_POWER_PA_DETECT_MSK = 0x7f800000, /* bits 23:30 */ | |
1638 | TX_ABORT_REQUIRED_MSK = 0x80000000, /* bits 31:31 */ | |
1639 | }; | |
1640 | ||
1641 | /* ******************************* | |
1642 | * TX aggregation status | |
1643 | ******************************* */ | |
1644 | ||
1645 | enum { | |
1646 | AGG_TX_STATE_TRANSMITTED = 0x00, | |
1647 | AGG_TX_STATE_UNDERRUN_MSK = 0x01, | |
1648 | AGG_TX_STATE_FEW_BYTES_MSK = 0x04, | |
1649 | AGG_TX_STATE_ABORT_MSK = 0x08, | |
1650 | AGG_TX_STATE_LAST_SENT_TTL_MSK = 0x10, | |
1651 | AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK = 0x20, | |
1652 | AGG_TX_STATE_SCD_QUERY_MSK = 0x80, | |
1653 | AGG_TX_STATE_TEST_BAD_CRC32_MSK = 0x100, | |
1654 | AGG_TX_STATE_RESPONSE_MSK = 0x1ff, | |
1655 | AGG_TX_STATE_DUMP_TX_MSK = 0x200, | |
1656 | AGG_TX_STATE_DELAY_TX_MSK = 0x400 | |
1657 | }; | |
1658 | ||
1659 | #define AGG_TX_STATUS_MSK 0x00000fff /* bits 0:11 */ | |
1660 | #define AGG_TX_TRY_MSK 0x0000f000 /* bits 12:15 */ | |
1661 | ||
1662 | #define AGG_TX_STATE_LAST_SENT_MSK (AGG_TX_STATE_LAST_SENT_TTL_MSK | \ | |
1663 | AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK) | |
1664 | ||
1665 | /* # tx attempts for first frame in aggregation */ | |
1666 | #define AGG_TX_STATE_TRY_CNT_POS 12 | |
1667 | #define AGG_TX_STATE_TRY_CNT_MSK 0xf000 | |
1668 | ||
1669 | /* Command ID and sequence number of Tx command for this frame */ | |
1670 | #define AGG_TX_STATE_SEQ_NUM_POS 16 | |
1671 | #define AGG_TX_STATE_SEQ_NUM_MSK 0xffff0000 | |
1672 | ||
1673 | /* | |
1674 | * REPLY_TX = 0x1c (response) | |
1675 | * | |
1676 | * This response may be in one of two slightly different formats, indicated | |
1677 | * by the frame_count field: | |
1678 | * | |
1679 | * 1) No aggregation (frame_count == 1). This reports Tx results for | |
1680 | * a single frame. Multiple attempts, at various bit rates, may have | |
1681 | * been made for this frame. | |
1682 | * | |
1683 | * 2) Aggregation (frame_count > 1). This reports Tx results for | |
1684 | * 2 or more frames that used block-acknowledge. All frames were | |
1685 | * transmitted at same rate. Rate scaling may have been used if first | |
1686 | * frame in this new agg block failed in previous agg block(s). | |
1687 | * | |
1688 | * Note that, for aggregation, ACK (block-ack) status is not delivered here; | |
1689 | * block-ack has not been received by the time the 4965 device records | |
1690 | * this status. | |
1691 | * This status relates to reasons the tx might have been blocked or aborted | |
1692 | * within the sending station (this 4965 device), rather than whether it was | |
1693 | * received successfully by the destination station. | |
1694 | */ | |
1695 | struct agg_tx_status { | |
1696 | __le16 status; | |
1697 | __le16 sequence; | |
1698 | } __packed; | |
1699 | ||
e2ebc833 | 1700 | struct il4965_tx_resp { |
be663ab6 WYG |
1701 | u8 frame_count; /* 1 no aggregation, >1 aggregation */ |
1702 | u8 bt_kill_count; /* # blocked by bluetooth (unused for agg) */ | |
1703 | u8 failure_rts; /* # failures due to unsuccessful RTS */ | |
1704 | u8 failure_frame; /* # failures due to no ACK (unused for agg) */ | |
1705 | ||
1706 | /* For non-agg: Rate at which frame was successful. | |
1707 | * For agg: Rate at which all frames were transmitted. */ | |
1708 | __le32 rate_n_flags; /* RATE_MCS_* */ | |
1709 | ||
1710 | /* For non-agg: RTS + CTS + frame tx attempts time + ACK. | |
1711 | * For agg: RTS + CTS + aggregation tx time + block-ack time. */ | |
1712 | __le16 wireless_media_time; /* uSecs */ | |
1713 | ||
1714 | __le16 reserved; | |
1715 | __le32 pa_power1; /* RF power amplifier measurement (not used) */ | |
1716 | __le32 pa_power2; | |
1717 | ||
1718 | /* | |
1719 | * For non-agg: frame status TX_STATUS_* | |
1720 | * For agg: status of 1st frame, AGG_TX_STATE_*; other frame status | |
1721 | * fields follow this one, up to frame_count. | |
1722 | * Bit fields: | |
1723 | * 11- 0: AGG_TX_STATE_* status code | |
1724 | * 15-12: Retry count for 1st frame in aggregation (retries | |
1725 | * occur if tx failed for this frame when it was a | |
1726 | * member of a previous aggregation block). If rate | |
1727 | * scaling is used, retry count indicates the rate | |
1728 | * table entry used for all frames in the new agg. | |
1729 | * 31-16: Sequence # for this frame's Tx cmd (not SSN!) | |
1730 | */ | |
1731 | union { | |
1732 | __le32 status; | |
1733 | struct agg_tx_status agg_status[0]; /* for each agg frame */ | |
1734 | } u; | |
1735 | } __packed; | |
1736 | ||
1737 | /* | |
1738 | * REPLY_COMPRESSED_BA = 0xc5 (response only, not a command) | |
1739 | * | |
1740 | * Reports Block-Acknowledge from recipient station | |
1741 | */ | |
e2ebc833 | 1742 | struct il_compressed_ba_resp { |
be663ab6 WYG |
1743 | __le32 sta_addr_lo32; |
1744 | __le16 sta_addr_hi16; | |
1745 | __le16 reserved; | |
1746 | ||
1747 | /* Index of recipient (BA-sending) station in uCode's station table */ | |
1748 | u8 sta_id; | |
1749 | u8 tid; | |
1750 | __le16 seq_ctl; | |
1751 | __le64 bitmap; | |
1752 | __le16 scd_flow; | |
1753 | __le16 scd_ssn; | |
1754 | } __packed; | |
1755 | ||
1756 | /* | |
1757 | * REPLY_TX_PWR_TABLE_CMD = 0x97 (command, has simple generic response) | |
1758 | * | |
1759 | * See details under "TXPOWER" in iwl-4965-hw.h. | |
1760 | */ | |
1761 | ||
e2ebc833 | 1762 | struct il3945_txpowertable_cmd { |
be663ab6 WYG |
1763 | u8 band; /* 0: 5 GHz, 1: 2.4 GHz */ |
1764 | u8 reserved; | |
1765 | __le16 channel; | |
e2ebc833 | 1766 | struct il3945_power_per_rate power[IL_MAX_RATES]; |
be663ab6 WYG |
1767 | } __packed; |
1768 | ||
e2ebc833 | 1769 | struct il4965_txpowertable_cmd { |
be663ab6 WYG |
1770 | u8 band; /* 0: 5 GHz, 1: 2.4 GHz */ |
1771 | u8 reserved; | |
1772 | __le16 channel; | |
e2ebc833 | 1773 | struct il4965_tx_power_db tx_power; |
be663ab6 WYG |
1774 | } __packed; |
1775 | ||
1776 | ||
1777 | /** | |
e2ebc833 | 1778 | * struct il3945_rate_scaling_cmd - Rate Scaling Command & Response |
be663ab6 WYG |
1779 | * |
1780 | * REPLY_RATE_SCALE = 0x47 (command, has simple generic response) | |
1781 | * | |
1782 | * NOTE: The table of rates passed to the uCode via the | |
1783 | * RATE_SCALE command sets up the corresponding order of | |
1784 | * rates used for all related commands, including rate | |
1785 | * masks, etc. | |
1786 | * | |
1787 | * For example, if you set 9MB (PLCP 0x0f) as the first | |
1788 | * rate in the rate table, the bit mask for that rate | |
1789 | * when passed through ofdm_basic_rates on the REPLY_RXON | |
1790 | * command would be bit 0 (1 << 0) | |
1791 | */ | |
e2ebc833 | 1792 | struct il3945_rate_scaling_info { |
be663ab6 WYG |
1793 | __le16 rate_n_flags; |
1794 | u8 try_cnt; | |
1795 | u8 next_rate_index; | |
1796 | } __packed; | |
1797 | ||
e2ebc833 | 1798 | struct il3945_rate_scaling_cmd { |
be663ab6 WYG |
1799 | u8 table_id; |
1800 | u8 reserved[3]; | |
e2ebc833 | 1801 | struct il3945_rate_scaling_info table[IL_MAX_RATES]; |
be663ab6 WYG |
1802 | } __packed; |
1803 | ||
1804 | ||
1805 | /*RS_NEW_API: only TLC_RTS remains and moved to bit 0 */ | |
1806 | #define LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK (1 << 0) | |
1807 | ||
1808 | /* # of EDCA prioritized tx fifos */ | |
1809 | #define LINK_QUAL_AC_NUM AC_NUM | |
1810 | ||
1811 | /* # entries in rate scale table to support Tx retries */ | |
1812 | #define LINK_QUAL_MAX_RETRY_NUM 16 | |
1813 | ||
1814 | /* Tx antenna selection values */ | |
1815 | #define LINK_QUAL_ANT_A_MSK (1 << 0) | |
1816 | #define LINK_QUAL_ANT_B_MSK (1 << 1) | |
1817 | #define LINK_QUAL_ANT_MSK (LINK_QUAL_ANT_A_MSK|LINK_QUAL_ANT_B_MSK) | |
1818 | ||
1819 | ||
1820 | /** | |
e2ebc833 | 1821 | * struct il_link_qual_general_params |
be663ab6 WYG |
1822 | * |
1823 | * Used in REPLY_TX_LINK_QUALITY_CMD | |
1824 | */ | |
e2ebc833 | 1825 | struct il_link_qual_general_params { |
be663ab6 WYG |
1826 | u8 flags; |
1827 | ||
1828 | /* No entries at or above this (driver chosen) index contain MIMO */ | |
1829 | u8 mimo_delimiter; | |
1830 | ||
1831 | /* Best single antenna to use for single stream (legacy, SISO). */ | |
1832 | u8 single_stream_ant_msk; /* LINK_QUAL_ANT_* */ | |
1833 | ||
1834 | /* Best antennas to use for MIMO (unused for 4965, assumes both). */ | |
1835 | u8 dual_stream_ant_msk; /* LINK_QUAL_ANT_* */ | |
1836 | ||
1837 | /* | |
1838 | * If driver needs to use different initial rates for different | |
1839 | * EDCA QOS access categories (as implemented by tx fifos 0-3), | |
1840 | * this table will set that up, by indicating the indexes in the | |
1841 | * rs_table[LINK_QUAL_MAX_RETRY_NUM] rate table at which to start. | |
1842 | * Otherwise, driver should set all entries to 0. | |
1843 | * | |
1844 | * Entry usage: | |
1845 | * 0 = Background, 1 = Best Effort (normal), 2 = Video, 3 = Voice | |
1846 | * TX FIFOs above 3 use same value (typically 0) as TX FIFO 3. | |
1847 | */ | |
1848 | u8 start_rate_index[LINK_QUAL_AC_NUM]; | |
1849 | } __packed; | |
1850 | ||
1851 | #define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) /* 4 milliseconds */ | |
1852 | #define LINK_QUAL_AGG_TIME_LIMIT_MAX (8000) | |
1853 | #define LINK_QUAL_AGG_TIME_LIMIT_MIN (100) | |
1854 | ||
1855 | #define LINK_QUAL_AGG_DISABLE_START_DEF (3) | |
1856 | #define LINK_QUAL_AGG_DISABLE_START_MAX (255) | |
1857 | #define LINK_QUAL_AGG_DISABLE_START_MIN (0) | |
1858 | ||
1859 | #define LINK_QUAL_AGG_FRAME_LIMIT_DEF (31) | |
1860 | #define LINK_QUAL_AGG_FRAME_LIMIT_MAX (63) | |
1861 | #define LINK_QUAL_AGG_FRAME_LIMIT_MIN (0) | |
1862 | ||
1863 | /** | |
e2ebc833 | 1864 | * struct il_link_qual_agg_params |
be663ab6 WYG |
1865 | * |
1866 | * Used in REPLY_TX_LINK_QUALITY_CMD | |
1867 | */ | |
e2ebc833 | 1868 | struct il_link_qual_agg_params { |
be663ab6 WYG |
1869 | |
1870 | /* | |
1871 | *Maximum number of uSec in aggregation. | |
1872 | * default set to 4000 (4 milliseconds) if not configured in .cfg | |
1873 | */ | |
1874 | __le16 agg_time_limit; | |
1875 | ||
1876 | /* | |
1877 | * Number of Tx retries allowed for a frame, before that frame will | |
1878 | * no longer be considered for the start of an aggregation sequence | |
1879 | * (scheduler will then try to tx it as single frame). | |
1880 | * Driver should set this to 3. | |
1881 | */ | |
1882 | u8 agg_dis_start_th; | |
1883 | ||
1884 | /* | |
1885 | * Maximum number of frames in aggregation. | |
1886 | * 0 = no limit (default). 1 = no aggregation. | |
1887 | * Other values = max # frames in aggregation. | |
1888 | */ | |
1889 | u8 agg_frame_cnt_limit; | |
1890 | ||
1891 | __le32 reserved; | |
1892 | } __packed; | |
1893 | ||
1894 | /* | |
1895 | * REPLY_TX_LINK_QUALITY_CMD = 0x4e (command, has simple generic response) | |
1896 | * | |
1897 | * For 4965 devices only; 3945 uses REPLY_RATE_SCALE. | |
1898 | * | |
1899 | * Each station in the 4965 device's internal station table has its own table | |
1900 | * of 16 | |
1901 | * Tx rates and modulation modes (e.g. legacy/SISO/MIMO) for retrying Tx when | |
1902 | * an ACK is not received. This command replaces the entire table for | |
1903 | * one station. | |
1904 | * | |
1905 | * NOTE: Station must already be in 4965 device's station table. | |
1906 | * Use REPLY_ADD_STA. | |
1907 | * | |
1908 | * The rate scaling procedures described below work well. Of course, other | |
1909 | * procedures are possible, and may work better for particular environments. | |
1910 | * | |
1911 | * | |
1912 | * FILLING THE RATE TABLE | |
1913 | * | |
1914 | * Given a particular initial rate and mode, as determined by the rate | |
1915 | * scaling algorithm described below, the Linux driver uses the following | |
1916 | * formula to fill the rs_table[LINK_QUAL_MAX_RETRY_NUM] rate table in the | |
1917 | * Link Quality command: | |
1918 | * | |
1919 | * | |
1920 | * 1) If using High-throughput (HT) (SISO or MIMO) initial rate: | |
1921 | * a) Use this same initial rate for first 3 entries. | |
1922 | * b) Find next lower available rate using same mode (SISO or MIMO), | |
1923 | * use for next 3 entries. If no lower rate available, switch to | |
1924 | * legacy mode (no HT40 channel, no MIMO, no short guard interval). | |
1925 | * c) If using MIMO, set command's mimo_delimiter to number of entries | |
1926 | * using MIMO (3 or 6). | |
1927 | * d) After trying 2 HT rates, switch to legacy mode (no HT40 channel, | |
1928 | * no MIMO, no short guard interval), at the next lower bit rate | |
1929 | * (e.g. if second HT bit rate was 54, try 48 legacy), and follow | |
1930 | * legacy procedure for remaining table entries. | |
1931 | * | |
1932 | * 2) If using legacy initial rate: | |
1933 | * a) Use the initial rate for only one entry. | |
1934 | * b) For each following entry, reduce the rate to next lower available | |
1935 | * rate, until reaching the lowest available rate. | |
1936 | * c) When reducing rate, also switch antenna selection. | |
1937 | * d) Once lowest available rate is reached, repeat this rate until | |
1938 | * rate table is filled (16 entries), switching antenna each entry. | |
1939 | * | |
1940 | * | |
1941 | * ACCUMULATING HISTORY | |
1942 | * | |
1943 | * The rate scaling algorithm for 4965 devices, as implemented in Linux driver, | |
1944 | * uses two sets of frame Tx success history: One for the current/active | |
1945 | * modulation mode, and one for a speculative/search mode that is being | |
1946 | * attempted. If the speculative mode turns out to be more effective (i.e. | |
1947 | * actual transfer rate is better), then the driver continues to use the | |
1948 | * speculative mode as the new current active mode. | |
1949 | * | |
1950 | * Each history set contains, separately for each possible rate, data for a | |
1951 | * sliding window of the 62 most recent tx attempts at that rate. The data | |
1952 | * includes a shifting bitmap of success(1)/failure(0), and sums of successful | |
1953 | * and attempted frames, from which the driver can additionally calculate a | |
1954 | * success ratio (success / attempted) and number of failures | |
1955 | * (attempted - success), and control the size of the window (attempted). | |
1956 | * The driver uses the bit map to remove successes from the success sum, as | |
1957 | * the oldest tx attempts fall out of the window. | |
1958 | * | |
1959 | * When the 4965 device makes multiple tx attempts for a given frame, each | |
1960 | * attempt might be at a different rate, and have different modulation | |
1961 | * characteristics (e.g. antenna, fat channel, short guard interval), as set | |
1962 | * up in the rate scaling table in the Link Quality command. The driver must | |
1963 | * determine which rate table entry was used for each tx attempt, to determine | |
1964 | * which rate-specific history to update, and record only those attempts that | |
1965 | * match the modulation characteristics of the history set. | |
1966 | * | |
1967 | * When using block-ack (aggregation), all frames are transmitted at the same | |
1968 | * rate, since there is no per-attempt acknowledgment from the destination | |
e2ebc833 | 1969 | * station. The Tx response struct il_tx_resp indicates the Tx rate in |
be663ab6 WYG |
1970 | * rate_n_flags field. After receiving a block-ack, the driver can update |
1971 | * history for the entire block all at once. | |
1972 | * | |
1973 | * | |
1974 | * FINDING BEST STARTING RATE: | |
1975 | * | |
1976 | * When working with a selected initial modulation mode (see below), the | |
1977 | * driver attempts to find a best initial rate. The initial rate is the | |
1978 | * first entry in the Link Quality command's rate table. | |
1979 | * | |
1980 | * 1) Calculate actual throughput (success ratio * expected throughput, see | |
1981 | * table below) for current initial rate. Do this only if enough frames | |
1982 | * have been attempted to make the value meaningful: at least 6 failed | |
1983 | * tx attempts, or at least 8 successes. If not enough, don't try rate | |
1984 | * scaling yet. | |
1985 | * | |
1986 | * 2) Find available rates adjacent to current initial rate. Available means: | |
1987 | * a) supported by hardware && | |
1988 | * b) supported by association && | |
1989 | * c) within any constraints selected by user | |
1990 | * | |
1991 | * 3) Gather measured throughputs for adjacent rates. These might not have | |
1992 | * enough history to calculate a throughput. That's okay, we might try | |
1993 | * using one of them anyway! | |
1994 | * | |
1995 | * 4) Try decreasing rate if, for current rate: | |
1996 | * a) success ratio is < 15% || | |
1997 | * b) lower adjacent rate has better measured throughput || | |
1998 | * c) higher adjacent rate has worse throughput, and lower is unmeasured | |
1999 | * | |
2000 | * As a sanity check, if decrease was determined above, leave rate | |
2001 | * unchanged if: | |
2002 | * a) lower rate unavailable | |
2003 | * b) success ratio at current rate > 85% (very good) | |
2004 | * c) current measured throughput is better than expected throughput | |
2005 | * of lower rate (under perfect 100% tx conditions, see table below) | |
2006 | * | |
2007 | * 5) Try increasing rate if, for current rate: | |
2008 | * a) success ratio is < 15% || | |
2009 | * b) both adjacent rates' throughputs are unmeasured (try it!) || | |
2010 | * b) higher adjacent rate has better measured throughput || | |
2011 | * c) lower adjacent rate has worse throughput, and higher is unmeasured | |
2012 | * | |
2013 | * As a sanity check, if increase was determined above, leave rate | |
2014 | * unchanged if: | |
2015 | * a) success ratio at current rate < 70%. This is not particularly | |
2016 | * good performance; higher rate is sure to have poorer success. | |
2017 | * | |
2018 | * 6) Re-evaluate the rate after each tx frame. If working with block- | |
2019 | * acknowledge, history and statistics may be calculated for the entire | |
2020 | * block (including prior history that fits within the history windows), | |
2021 | * before re-evaluation. | |
2022 | * | |
2023 | * FINDING BEST STARTING MODULATION MODE: | |
2024 | * | |
2025 | * After working with a modulation mode for a "while" (and doing rate scaling), | |
2026 | * the driver searches for a new initial mode in an attempt to improve | |
2027 | * throughput. The "while" is measured by numbers of attempted frames: | |
2028 | * | |
2029 | * For legacy mode, search for new mode after: | |
2030 | * 480 successful frames, or 160 failed frames | |
2031 | * For high-throughput modes (SISO or MIMO), search for new mode after: | |
2032 | * 4500 successful frames, or 400 failed frames | |
2033 | * | |
2034 | * Mode switch possibilities are (3 for each mode): | |
2035 | * | |
2036 | * For legacy: | |
2037 | * Change antenna, try SISO (if HT association), try MIMO (if HT association) | |
2038 | * For SISO: | |
2039 | * Change antenna, try MIMO, try shortened guard interval (SGI) | |
2040 | * For MIMO: | |
2041 | * Try SISO antenna A, SISO antenna B, try shortened guard interval (SGI) | |
2042 | * | |
2043 | * When trying a new mode, use the same bit rate as the old/current mode when | |
2044 | * trying antenna switches and shortened guard interval. When switching to | |
2045 | * SISO from MIMO or legacy, or to MIMO from SISO or legacy, use a rate | |
2046 | * for which the expected throughput (under perfect conditions) is about the | |
2047 | * same or slightly better than the actual measured throughput delivered by | |
2048 | * the old/current mode. | |
2049 | * | |
2050 | * Actual throughput can be estimated by multiplying the expected throughput | |
2051 | * by the success ratio (successful / attempted tx frames). Frame size is | |
2052 | * not considered in this calculation; it assumes that frame size will average | |
2053 | * out to be fairly consistent over several samples. The following are | |
2054 | * metric values for expected throughput assuming 100% success ratio. | |
2055 | * Only G band has support for CCK rates: | |
2056 | * | |
2057 | * RATE: 1 2 5 11 6 9 12 18 24 36 48 54 60 | |
2058 | * | |
2059 | * G: 7 13 35 58 40 57 72 98 121 154 177 186 186 | |
2060 | * A: 0 0 0 0 40 57 72 98 121 154 177 186 186 | |
2061 | * SISO 20MHz: 0 0 0 0 42 42 76 102 124 159 183 193 202 | |
2062 | * SGI SISO 20MHz: 0 0 0 0 46 46 82 110 132 168 192 202 211 | |
2063 | * MIMO 20MHz: 0 0 0 0 74 74 123 155 179 214 236 244 251 | |
2064 | * SGI MIMO 20MHz: 0 0 0 0 81 81 131 164 188 222 243 251 257 | |
2065 | * SISO 40MHz: 0 0 0 0 77 77 127 160 184 220 242 250 257 | |
2066 | * SGI SISO 40MHz: 0 0 0 0 83 83 135 169 193 229 250 257 264 | |
2067 | * MIMO 40MHz: 0 0 0 0 123 123 182 214 235 264 279 285 289 | |
2068 | * SGI MIMO 40MHz: 0 0 0 0 131 131 191 222 242 270 284 289 293 | |
2069 | * | |
2070 | * After the new mode has been tried for a short while (minimum of 6 failed | |
2071 | * frames or 8 successful frames), compare success ratio and actual throughput | |
2072 | * estimate of the new mode with the old. If either is better with the new | |
2073 | * mode, continue to use the new mode. | |
2074 | * | |
2075 | * Continue comparing modes until all 3 possibilities have been tried. | |
2076 | * If moving from legacy to HT, try all 3 possibilities from the new HT | |
2077 | * mode. After trying all 3, a best mode is found. Continue to use this mode | |
2078 | * for the longer "while" described above (e.g. 480 successful frames for | |
2079 | * legacy), and then repeat the search process. | |
2080 | * | |
2081 | */ | |
e2ebc833 | 2082 | struct il_link_quality_cmd { |
be663ab6 WYG |
2083 | |
2084 | /* Index of destination/recipient station in uCode's station table */ | |
2085 | u8 sta_id; | |
2086 | u8 reserved1; | |
2087 | __le16 control; /* not used */ | |
e2ebc833 SG |
2088 | struct il_link_qual_general_params general_params; |
2089 | struct il_link_qual_agg_params agg_params; | |
be663ab6 WYG |
2090 | |
2091 | /* | |
2092 | * Rate info; when using rate-scaling, Tx command's initial_rate_index | |
2093 | * specifies 1st Tx rate attempted, via index into this table. | |
2094 | * 4965 devices works its way through table when retrying Tx. | |
2095 | */ | |
2096 | struct { | |
e2ebc833 | 2097 | __le32 rate_n_flags; /* RATE_MCS_*, IL_RATE_* */ |
be663ab6 WYG |
2098 | } rs_table[LINK_QUAL_MAX_RETRY_NUM]; |
2099 | __le32 reserved2; | |
2100 | } __packed; | |
2101 | ||
2102 | /* | |
2103 | * BT configuration enable flags: | |
2104 | * bit 0 - 1: BT channel announcement enabled | |
2105 | * 0: disable | |
2106 | * bit 1 - 1: priority of BT device enabled | |
2107 | * 0: disable | |
2108 | */ | |
2109 | #define BT_COEX_DISABLE (0x0) | |
2110 | #define BT_ENABLE_CHANNEL_ANNOUNCE BIT(0) | |
2111 | #define BT_ENABLE_PRIORITY BIT(1) | |
2112 | ||
2113 | #define BT_COEX_ENABLE (BT_ENABLE_CHANNEL_ANNOUNCE | BT_ENABLE_PRIORITY) | |
2114 | ||
2115 | #define BT_LEAD_TIME_DEF (0x1E) | |
2116 | ||
2117 | #define BT_MAX_KILL_DEF (0x5) | |
2118 | ||
2119 | /* | |
2120 | * REPLY_BT_CONFIG = 0x9b (command, has simple generic response) | |
2121 | * | |
2122 | * 3945 and 4965 devices support hardware handshake with Bluetooth device on | |
2123 | * same platform. Bluetooth device alerts wireless device when it will Tx; | |
2124 | * wireless device can delay or kill its own Tx to accommodate. | |
2125 | */ | |
e2ebc833 | 2126 | struct il_bt_cmd { |
be663ab6 WYG |
2127 | u8 flags; |
2128 | u8 lead_time; | |
2129 | u8 max_kill; | |
2130 | u8 reserved; | |
2131 | __le32 kill_ack_mask; | |
2132 | __le32 kill_cts_mask; | |
2133 | } __packed; | |
2134 | ||
2135 | ||
2136 | /****************************************************************************** | |
2137 | * (6) | |
2138 | * Spectrum Management (802.11h) Commands, Responses, Notifications: | |
2139 | * | |
2140 | *****************************************************************************/ | |
2141 | ||
2142 | /* | |
2143 | * Spectrum Management | |
2144 | */ | |
2145 | #define MEASUREMENT_FILTER_FLAG (RXON_FILTER_PROMISC_MSK | \ | |
2146 | RXON_FILTER_CTL2HOST_MSK | \ | |
2147 | RXON_FILTER_ACCEPT_GRP_MSK | \ | |
2148 | RXON_FILTER_DIS_DECRYPT_MSK | \ | |
2149 | RXON_FILTER_DIS_GRP_DECRYPT_MSK | \ | |
2150 | RXON_FILTER_ASSOC_MSK | \ | |
2151 | RXON_FILTER_BCON_AWARE_MSK) | |
2152 | ||
e2ebc833 | 2153 | struct il_measure_channel { |
be663ab6 WYG |
2154 | __le32 duration; /* measurement duration in extended beacon |
2155 | * format */ | |
2156 | u8 channel; /* channel to measure */ | |
e2ebc833 | 2157 | u8 type; /* see enum il_measure_type */ |
be663ab6 WYG |
2158 | __le16 reserved; |
2159 | } __packed; | |
2160 | ||
2161 | /* | |
2162 | * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (command) | |
2163 | */ | |
e2ebc833 | 2164 | struct il_spectrum_cmd { |
be663ab6 WYG |
2165 | __le16 len; /* number of bytes starting from token */ |
2166 | u8 token; /* token id */ | |
2167 | u8 id; /* measurement id -- 0 or 1 */ | |
2168 | u8 origin; /* 0 = TGh, 1 = other, 2 = TGk */ | |
2169 | u8 periodic; /* 1 = periodic */ | |
2170 | __le16 path_loss_timeout; | |
2171 | __le32 start_time; /* start time in extended beacon format */ | |
2172 | __le32 reserved2; | |
2173 | __le32 flags; /* rxon flags */ | |
2174 | __le32 filter_flags; /* rxon filter flags */ | |
2175 | __le16 channel_count; /* minimum 1, maximum 10 */ | |
2176 | __le16 reserved3; | |
e2ebc833 | 2177 | struct il_measure_channel channels[10]; |
be663ab6 WYG |
2178 | } __packed; |
2179 | ||
2180 | /* | |
2181 | * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (response) | |
2182 | */ | |
e2ebc833 | 2183 | struct il_spectrum_resp { |
be663ab6 WYG |
2184 | u8 token; |
2185 | u8 id; /* id of the prior command replaced, or 0xff */ | |
2186 | __le16 status; /* 0 - command will be handled | |
2187 | * 1 - cannot handle (conflicts with another | |
2188 | * measurement) */ | |
2189 | } __packed; | |
2190 | ||
e2ebc833 SG |
2191 | enum il_measurement_state { |
2192 | IL_MEASUREMENT_START = 0, | |
2193 | IL_MEASUREMENT_STOP = 1, | |
be663ab6 WYG |
2194 | }; |
2195 | ||
e2ebc833 SG |
2196 | enum il_measurement_status { |
2197 | IL_MEASUREMENT_OK = 0, | |
2198 | IL_MEASUREMENT_CONCURRENT = 1, | |
2199 | IL_MEASUREMENT_CSA_CONFLICT = 2, | |
2200 | IL_MEASUREMENT_TGH_CONFLICT = 3, | |
be663ab6 | 2201 | /* 4-5 reserved */ |
e2ebc833 SG |
2202 | IL_MEASUREMENT_STOPPED = 6, |
2203 | IL_MEASUREMENT_TIMEOUT = 7, | |
2204 | IL_MEASUREMENT_PERIODIC_FAILED = 8, | |
be663ab6 WYG |
2205 | }; |
2206 | ||
2207 | #define NUM_ELEMENTS_IN_HISTOGRAM 8 | |
2208 | ||
e2ebc833 | 2209 | struct il_measurement_histogram { |
be663ab6 WYG |
2210 | __le32 ofdm[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 0.8usec counts */ |
2211 | __le32 cck[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 1usec counts */ | |
2212 | } __packed; | |
2213 | ||
2214 | /* clear channel availability counters */ | |
e2ebc833 | 2215 | struct il_measurement_cca_counters { |
be663ab6 WYG |
2216 | __le32 ofdm; |
2217 | __le32 cck; | |
2218 | } __packed; | |
2219 | ||
e2ebc833 SG |
2220 | enum il_measure_type { |
2221 | IL_MEASURE_BASIC = (1 << 0), | |
2222 | IL_MEASURE_CHANNEL_LOAD = (1 << 1), | |
2223 | IL_MEASURE_HISTOGRAM_RPI = (1 << 2), | |
2224 | IL_MEASURE_HISTOGRAM_NOISE = (1 << 3), | |
2225 | IL_MEASURE_FRAME = (1 << 4), | |
be663ab6 | 2226 | /* bits 5:6 are reserved */ |
e2ebc833 | 2227 | IL_MEASURE_IDLE = (1 << 7), |
be663ab6 WYG |
2228 | }; |
2229 | ||
2230 | /* | |
2231 | * SPECTRUM_MEASURE_NOTIFICATION = 0x75 (notification only, not a command) | |
2232 | */ | |
e2ebc833 | 2233 | struct il_spectrum_notification { |
be663ab6 WYG |
2234 | u8 id; /* measurement id -- 0 or 1 */ |
2235 | u8 token; | |
2236 | u8 channel_index; /* index in measurement channel list */ | |
2237 | u8 state; /* 0 - start, 1 - stop */ | |
2238 | __le32 start_time; /* lower 32-bits of TSF */ | |
2239 | u8 band; /* 0 - 5.2GHz, 1 - 2.4GHz */ | |
2240 | u8 channel; | |
e2ebc833 | 2241 | u8 type; /* see enum il_measurement_type */ |
be663ab6 WYG |
2242 | u8 reserved1; |
2243 | /* NOTE: cca_ofdm, cca_cck, basic_type, and histogram are only only | |
2244 | * valid if applicable for measurement type requested. */ | |
2245 | __le32 cca_ofdm; /* cca fraction time in 40Mhz clock periods */ | |
2246 | __le32 cca_cck; /* cca fraction time in 44Mhz clock periods */ | |
2247 | __le32 cca_time; /* channel load time in usecs */ | |
2248 | u8 basic_type; /* 0 - bss, 1 - ofdm preamble, 2 - | |
2249 | * unidentified */ | |
2250 | u8 reserved2[3]; | |
e2ebc833 | 2251 | struct il_measurement_histogram histogram; |
be663ab6 | 2252 | __le32 stop_time; /* lower 32-bits of TSF */ |
e2ebc833 | 2253 | __le32 status; /* see il_measurement_status */ |
be663ab6 WYG |
2254 | } __packed; |
2255 | ||
2256 | /****************************************************************************** | |
2257 | * (7) | |
2258 | * Power Management Commands, Responses, Notifications: | |
2259 | * | |
2260 | *****************************************************************************/ | |
2261 | ||
2262 | /** | |
e2ebc833 | 2263 | * struct il_powertable_cmd - Power Table Command |
be663ab6 WYG |
2264 | * @flags: See below: |
2265 | * | |
2266 | * POWER_TABLE_CMD = 0x77 (command, has simple generic response) | |
2267 | * | |
2268 | * PM allow: | |
2269 | * bit 0 - '0' Driver not allow power management | |
2270 | * '1' Driver allow PM (use rest of parameters) | |
2271 | * | |
2272 | * uCode send sleep notifications: | |
2273 | * bit 1 - '0' Don't send sleep notification | |
2274 | * '1' send sleep notification (SEND_PM_NOTIFICATION) | |
2275 | * | |
2276 | * Sleep over DTIM | |
2277 | * bit 2 - '0' PM have to walk up every DTIM | |
2278 | * '1' PM could sleep over DTIM till listen Interval. | |
2279 | * | |
2280 | * PCI power managed | |
2281 | * bit 3 - '0' (PCI_CFG_LINK_CTRL & 0x1) | |
2282 | * '1' !(PCI_CFG_LINK_CTRL & 0x1) | |
2283 | * | |
2284 | * Fast PD | |
2285 | * bit 4 - '1' Put radio to sleep when receiving frame for others | |
2286 | * | |
2287 | * Force sleep Modes | |
2288 | * bit 31/30- '00' use both mac/xtal sleeps | |
2289 | * '01' force Mac sleep | |
2290 | * '10' force xtal sleep | |
2291 | * '11' Illegal set | |
2292 | * | |
2293 | * NOTE: if sleep_interval[SLEEP_INTRVL_TABLE_SIZE-1] > DTIM period then | |
2294 | * ucode assume sleep over DTIM is allowed and we don't need to wake up | |
2295 | * for every DTIM. | |
2296 | */ | |
e2ebc833 | 2297 | #define IL_POWER_VEC_SIZE 5 |
be663ab6 | 2298 | |
e2ebc833 SG |
2299 | #define IL_POWER_DRIVER_ALLOW_SLEEP_MSK cpu_to_le16(BIT(0)) |
2300 | #define IL_POWER_PCI_PM_MSK cpu_to_le16(BIT(3)) | |
be663ab6 | 2301 | |
e2ebc833 | 2302 | struct il3945_powertable_cmd { |
be663ab6 WYG |
2303 | __le16 flags; |
2304 | u8 reserved[2]; | |
2305 | __le32 rx_data_timeout; | |
2306 | __le32 tx_data_timeout; | |
e2ebc833 | 2307 | __le32 sleep_interval[IL_POWER_VEC_SIZE]; |
be663ab6 WYG |
2308 | } __packed; |
2309 | ||
e2ebc833 | 2310 | struct il_powertable_cmd { |
be663ab6 WYG |
2311 | __le16 flags; |
2312 | u8 keep_alive_seconds; /* 3945 reserved */ | |
2313 | u8 debug_flags; /* 3945 reserved */ | |
2314 | __le32 rx_data_timeout; | |
2315 | __le32 tx_data_timeout; | |
e2ebc833 | 2316 | __le32 sleep_interval[IL_POWER_VEC_SIZE]; |
be663ab6 WYG |
2317 | __le32 keep_alive_beacons; |
2318 | } __packed; | |
2319 | ||
2320 | /* | |
2321 | * PM_SLEEP_NOTIFICATION = 0x7A (notification only, not a command) | |
2322 | * all devices identical. | |
2323 | */ | |
e2ebc833 | 2324 | struct il_sleep_notification { |
be663ab6 WYG |
2325 | u8 pm_sleep_mode; |
2326 | u8 pm_wakeup_src; | |
2327 | __le16 reserved; | |
2328 | __le32 sleep_time; | |
2329 | __le32 tsf_low; | |
2330 | __le32 bcon_timer; | |
2331 | } __packed; | |
2332 | ||
2333 | /* Sleep states. all devices identical. */ | |
2334 | enum { | |
e2ebc833 SG |
2335 | IL_PM_NO_SLEEP = 0, |
2336 | IL_PM_SLP_MAC = 1, | |
2337 | IL_PM_SLP_FULL_MAC_UNASSOCIATE = 2, | |
2338 | IL_PM_SLP_FULL_MAC_CARD_STATE = 3, | |
2339 | IL_PM_SLP_PHY = 4, | |
2340 | IL_PM_SLP_REPENT = 5, | |
2341 | IL_PM_WAKEUP_BY_TIMER = 6, | |
2342 | IL_PM_WAKEUP_BY_DRIVER = 7, | |
2343 | IL_PM_WAKEUP_BY_RFKILL = 8, | |
be663ab6 | 2344 | /* 3 reserved */ |
e2ebc833 | 2345 | IL_PM_NUM_OF_MODES = 12, |
be663ab6 WYG |
2346 | }; |
2347 | ||
2348 | /* | |
2349 | * CARD_STATE_NOTIFICATION = 0xa1 (notification only, not a command) | |
2350 | */ | |
e2ebc833 | 2351 | struct il_card_state_notif { |
be663ab6 WYG |
2352 | __le32 flags; |
2353 | } __packed; | |
2354 | ||
2355 | #define HW_CARD_DISABLED 0x01 | |
2356 | #define SW_CARD_DISABLED 0x02 | |
2357 | #define CT_CARD_DISABLED 0x04 | |
2358 | #define RXON_CARD_DISABLED 0x10 | |
2359 | ||
e2ebc833 | 2360 | struct il_ct_kill_config { |
be663ab6 WYG |
2361 | __le32 reserved; |
2362 | __le32 critical_temperature_M; | |
2363 | __le32 critical_temperature_R; | |
2364 | } __packed; | |
2365 | ||
2366 | /****************************************************************************** | |
2367 | * (8) | |
2368 | * Scan Commands, Responses, Notifications: | |
2369 | * | |
2370 | *****************************************************************************/ | |
2371 | ||
2372 | #define SCAN_CHANNEL_TYPE_PASSIVE cpu_to_le32(0) | |
2373 | #define SCAN_CHANNEL_TYPE_ACTIVE cpu_to_le32(1) | |
2374 | ||
2375 | /** | |
e2ebc833 | 2376 | * struct il_scan_channel - entry in REPLY_SCAN_CMD channel table |
be663ab6 WYG |
2377 | * |
2378 | * One for each channel in the scan list. | |
2379 | * Each channel can independently select: | |
2380 | * 1) SSID for directed active scans | |
2381 | * 2) Txpower setting (for rate specified within Tx command) | |
2382 | * 3) How long to stay on-channel (behavior may be modified by quiet_time, | |
2383 | * quiet_plcp_th, good_CRC_th) | |
2384 | * | |
2385 | * To avoid uCode errors, make sure the following are true (see comments | |
e2ebc833 | 2386 | * under struct il_scan_cmd about max_out_time and quiet_time): |
be663ab6 WYG |
2387 | * 1) If using passive_dwell (i.e. passive_dwell != 0): |
2388 | * active_dwell <= passive_dwell (< max_out_time if max_out_time != 0) | |
2389 | * 2) quiet_time <= active_dwell | |
2390 | * 3) If restricting off-channel time (i.e. max_out_time !=0): | |
2391 | * passive_dwell < max_out_time | |
2392 | * active_dwell < max_out_time | |
2393 | */ | |
e2ebc833 | 2394 | struct il3945_scan_channel { |
be663ab6 WYG |
2395 | /* |
2396 | * type is defined as: | |
2397 | * 0:0 1 = active, 0 = passive | |
2398 | * 1:4 SSID direct bit map; if a bit is set, then corresponding | |
2399 | * SSID IE is transmitted in probe request. | |
2400 | * 5:7 reserved | |
2401 | */ | |
2402 | u8 type; | |
e2ebc833 SG |
2403 | u8 channel; /* band is selected by il3945_scan_cmd "flags" field */ |
2404 | struct il3945_tx_power tpc; | |
be663ab6 WYG |
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 u8 type */ | |
d3175167 | 2410 | #define IL39_SCAN_PROBE_MASK(n) ((BIT(n) | (BIT(n) - BIT(1)))) |
be663ab6 | 2411 | |
e2ebc833 | 2412 | struct il_scan_channel { |
be663ab6 WYG |
2413 | /* |
2414 | * type is defined as: | |
2415 | * 0:0 1 = active, 0 = passive | |
2416 | * 1:20 SSID direct bit map; if a bit is set, then corresponding | |
2417 | * SSID IE is transmitted in probe request. | |
2418 | * 21:31 reserved | |
2419 | */ | |
2420 | __le32 type; | |
e2ebc833 | 2421 | __le16 channel; /* band is selected by il_scan_cmd "flags" field */ |
be663ab6 WYG |
2422 | u8 tx_gain; /* gain for analog radio */ |
2423 | u8 dsp_atten; /* gain for DSP */ | |
2424 | __le16 active_dwell; /* in 1024-uSec TU (time units), typ 5-50 */ | |
2425 | __le16 passive_dwell; /* in 1024-uSec TU (time units), typ 20-500 */ | |
2426 | } __packed; | |
2427 | ||
2428 | /* set number of direct probes __le32 type */ | |
e2ebc833 | 2429 | #define IL_SCAN_PROBE_MASK(n) cpu_to_le32((BIT(n) | (BIT(n) - BIT(1)))) |
be663ab6 WYG |
2430 | |
2431 | /** | |
e2ebc833 | 2432 | * struct il_ssid_ie - directed scan network information element |
be663ab6 WYG |
2433 | * |
2434 | * Up to 20 of these may appear in REPLY_SCAN_CMD (Note: Only 4 are in | |
e2ebc833 | 2435 | * 3945 SCAN api), selected by "type" bit field in struct il_scan_channel; |
be663ab6 WYG |
2436 | * each channel may select different ssids from among the 20 (4) entries. |
2437 | * SSID IEs get transmitted in reverse order of entry. | |
2438 | */ | |
e2ebc833 | 2439 | struct il_ssid_ie { |
be663ab6 WYG |
2440 | u8 id; |
2441 | u8 len; | |
2442 | u8 ssid[32]; | |
2443 | } __packed; | |
2444 | ||
2445 | #define PROBE_OPTION_MAX_3945 4 | |
2446 | #define PROBE_OPTION_MAX 20 | |
2447 | #define TX_CMD_LIFE_TIME_INFINITE cpu_to_le32(0xFFFFFFFF) | |
e2ebc833 SG |
2448 | #define IL_GOOD_CRC_TH_DISABLED 0 |
2449 | #define IL_GOOD_CRC_TH_DEFAULT cpu_to_le16(1) | |
2450 | #define IL_GOOD_CRC_TH_NEVER cpu_to_le16(0xffff) | |
2451 | #define IL_MAX_SCAN_SIZE 1024 | |
2452 | #define IL_MAX_CMD_SIZE 4096 | |
be663ab6 WYG |
2453 | |
2454 | /* | |
2455 | * REPLY_SCAN_CMD = 0x80 (command) | |
2456 | * | |
2457 | * The hardware scan command is very powerful; the driver can set it up to | |
2458 | * maintain (relatively) normal network traffic while doing a scan in the | |
2459 | * background. The max_out_time and suspend_time control the ratio of how | |
2460 | * long the device stays on an associated network channel ("service channel") | |
2461 | * vs. how long it's away from the service channel, i.e. tuned to other channels | |
2462 | * for scanning. | |
2463 | * | |
2464 | * max_out_time is the max time off-channel (in usec), and suspend_time | |
2465 | * is how long (in "extended beacon" format) that the scan is "suspended" | |
2466 | * after returning to the service channel. That is, suspend_time is the | |
2467 | * time that we stay on the service channel, doing normal work, between | |
2468 | * scan segments. The driver may set these parameters differently to support | |
2469 | * scanning when associated vs. not associated, and light vs. heavy traffic | |
2470 | * loads when associated. | |
2471 | * | |
2472 | * After receiving this command, the device's scan engine does the following; | |
2473 | * | |
2474 | * 1) Sends SCAN_START notification to driver | |
2475 | * 2) Checks to see if it has time to do scan for one channel | |
2476 | * 3) Sends NULL packet, with power-save (PS) bit set to 1, | |
2477 | * to tell AP that we're going off-channel | |
2478 | * 4) Tunes to first channel in scan list, does active or passive scan | |
2479 | * 5) Sends SCAN_RESULT notification to driver | |
2480 | * 6) Checks to see if it has time to do scan on *next* channel in list | |
2481 | * 7) Repeats 4-6 until it no longer has time to scan the next channel | |
2482 | * before max_out_time expires | |
2483 | * 8) Returns to service channel | |
2484 | * 9) Sends NULL packet with PS=0 to tell AP that we're back | |
2485 | * 10) Stays on service channel until suspend_time expires | |
2486 | * 11) Repeats entire process 2-10 until list is complete | |
2487 | * 12) Sends SCAN_COMPLETE notification | |
2488 | * | |
2489 | * For fast, efficient scans, the scan command also has support for staying on | |
2490 | * a channel for just a short time, if doing active scanning and getting no | |
2491 | * responses to the transmitted probe request. This time is controlled by | |
2492 | * quiet_time, and the number of received packets below which a channel is | |
2493 | * considered "quiet" is controlled by quiet_plcp_threshold. | |
2494 | * | |
2495 | * For active scanning on channels that have regulatory restrictions against | |
2496 | * blindly transmitting, the scan can listen before transmitting, to make sure | |
2497 | * that there is already legitimate activity on the channel. If enough | |
2498 | * packets are cleanly received on the channel (controlled by good_CRC_th, | |
2499 | * typical value 1), the scan engine starts transmitting probe requests. | |
2500 | * | |
2501 | * Driver must use separate scan commands for 2.4 vs. 5 GHz bands. | |
2502 | * | |
2503 | * To avoid uCode errors, see timing restrictions described under | |
e2ebc833 | 2504 | * struct il_scan_channel. |
be663ab6 WYG |
2505 | */ |
2506 | ||
e2ebc833 | 2507 | struct il3945_scan_cmd { |
be663ab6 WYG |
2508 | __le16 len; |
2509 | u8 reserved0; | |
2510 | u8 channel_count; /* # channels in channel list */ | |
2511 | __le16 quiet_time; /* dwell only this # millisecs on quiet channel | |
2512 | * (only for active scan) */ | |
2513 | __le16 quiet_plcp_th; /* quiet chnl is < this # pkts (typ. 1) */ | |
2514 | __le16 good_CRC_th; /* passive -> active promotion threshold */ | |
2515 | __le16 reserved1; | |
2516 | __le32 max_out_time; /* max usec to be away from associated (service) | |
2517 | * channel */ | |
2518 | __le32 suspend_time; /* pause scan this long (in "extended beacon | |
2519 | * format") when returning to service channel: | |
2520 | * 3945; 31:24 # beacons, 19:0 additional usec, | |
2521 | * 4965; 31:22 # beacons, 21:0 additional usec. | |
2522 | */ | |
2523 | __le32 flags; /* RXON_FLG_* */ | |
2524 | __le32 filter_flags; /* RXON_FILTER_* */ | |
2525 | ||
2526 | /* For active scans (set to all-0s for passive scans). | |
2527 | * Does not include payload. Must specify Tx rate; no rate scaling. */ | |
e2ebc833 | 2528 | struct il3945_tx_cmd tx_cmd; |
be663ab6 WYG |
2529 | |
2530 | /* For directed active scans (set to all-0s otherwise) */ | |
e2ebc833 | 2531 | struct il_ssid_ie direct_scan[PROBE_OPTION_MAX_3945]; |
be663ab6 WYG |
2532 | |
2533 | /* | |
2534 | * Probe request frame, followed by channel list. | |
2535 | * | |
2536 | * Size of probe request frame is specified by byte count in tx_cmd. | |
2537 | * Channel list follows immediately after probe request frame. | |
2538 | * Number of channels in list is specified by channel_count. | |
2539 | * Each channel in list is of type: | |
2540 | * | |
e2ebc833 | 2541 | * struct il3945_scan_channel channels[0]; |
be663ab6 WYG |
2542 | * |
2543 | * NOTE: Only one band of channels can be scanned per pass. You | |
2544 | * must not mix 2.4GHz channels and 5.2GHz channels, and you must wait | |
2545 | * for one scan to complete (i.e. receive SCAN_COMPLETE_NOTIFICATION) | |
2546 | * before requesting another scan. | |
2547 | */ | |
2548 | u8 data[0]; | |
2549 | } __packed; | |
2550 | ||
e2ebc833 | 2551 | struct il_scan_cmd { |
be663ab6 WYG |
2552 | __le16 len; |
2553 | u8 reserved0; | |
2554 | u8 channel_count; /* # channels in channel list */ | |
2555 | __le16 quiet_time; /* dwell only this # millisecs on quiet channel | |
2556 | * (only for active scan) */ | |
2557 | __le16 quiet_plcp_th; /* quiet chnl is < this # pkts (typ. 1) */ | |
2558 | __le16 good_CRC_th; /* passive -> active promotion threshold */ | |
2559 | __le16 rx_chain; /* RXON_RX_CHAIN_* */ | |
2560 | __le32 max_out_time; /* max usec to be away from associated (service) | |
2561 | * channel */ | |
2562 | __le32 suspend_time; /* pause scan this long (in "extended beacon | |
2563 | * format") when returning to service chnl: | |
2564 | * 3945; 31:24 # beacons, 19:0 additional usec, | |
2565 | * 4965; 31:22 # beacons, 21:0 additional usec. | |
2566 | */ | |
2567 | __le32 flags; /* RXON_FLG_* */ | |
2568 | __le32 filter_flags; /* RXON_FILTER_* */ | |
2569 | ||
2570 | /* For active scans (set to all-0s for passive scans). | |
2571 | * Does not include payload. Must specify Tx rate; no rate scaling. */ | |
e2ebc833 | 2572 | struct il_tx_cmd tx_cmd; |
be663ab6 WYG |
2573 | |
2574 | /* For directed active scans (set to all-0s otherwise) */ | |
e2ebc833 | 2575 | struct il_ssid_ie direct_scan[PROBE_OPTION_MAX]; |
be663ab6 WYG |
2576 | |
2577 | /* | |
2578 | * Probe request frame, followed by channel list. | |
2579 | * | |
2580 | * Size of probe request frame is specified by byte count in tx_cmd. | |
2581 | * Channel list follows immediately after probe request frame. | |
2582 | * Number of channels in list is specified by channel_count. | |
2583 | * Each channel in list is of type: | |
2584 | * | |
e2ebc833 | 2585 | * struct il_scan_channel channels[0]; |
be663ab6 WYG |
2586 | * |
2587 | * NOTE: Only one band of channels can be scanned per pass. You | |
2588 | * must not mix 2.4GHz channels and 5.2GHz channels, and you must wait | |
2589 | * for one scan to complete (i.e. receive SCAN_COMPLETE_NOTIFICATION) | |
2590 | * before requesting another scan. | |
2591 | */ | |
2592 | u8 data[0]; | |
2593 | } __packed; | |
2594 | ||
2595 | /* Can abort will notify by complete notification with abort status. */ | |
2596 | #define CAN_ABORT_STATUS cpu_to_le32(0x1) | |
2597 | /* complete notification statuses */ | |
2598 | #define ABORT_STATUS 0x2 | |
2599 | ||
2600 | /* | |
2601 | * REPLY_SCAN_CMD = 0x80 (response) | |
2602 | */ | |
e2ebc833 | 2603 | struct il_scanreq_notification { |
be663ab6 WYG |
2604 | __le32 status; /* 1: okay, 2: cannot fulfill request */ |
2605 | } __packed; | |
2606 | ||
2607 | /* | |
2608 | * SCAN_START_NOTIFICATION = 0x82 (notification only, not a command) | |
2609 | */ | |
e2ebc833 | 2610 | struct il_scanstart_notification { |
be663ab6 WYG |
2611 | __le32 tsf_low; |
2612 | __le32 tsf_high; | |
2613 | __le32 beacon_timer; | |
2614 | u8 channel; | |
2615 | u8 band; | |
2616 | u8 reserved[2]; | |
2617 | __le32 status; | |
2618 | } __packed; | |
2619 | ||
497888cf PC |
2620 | #define SCAN_OWNER_STATUS 0x1 |
2621 | #define MEASURE_OWNER_STATUS 0x2 | |
be663ab6 | 2622 | |
e2ebc833 SG |
2623 | #define IL_PROBE_STATUS_OK 0 |
2624 | #define IL_PROBE_STATUS_TX_FAILED BIT(0) | |
be663ab6 | 2625 | /* error statuses combined with TX_FAILED */ |
e2ebc833 SG |
2626 | #define IL_PROBE_STATUS_FAIL_TTL BIT(1) |
2627 | #define IL_PROBE_STATUS_FAIL_BT BIT(2) | |
be663ab6 WYG |
2628 | |
2629 | #define NUMBER_OF_STATISTICS 1 /* first __le32 is good CRC */ | |
2630 | /* | |
2631 | * SCAN_RESULTS_NOTIFICATION = 0x83 (notification only, not a command) | |
2632 | */ | |
e2ebc833 | 2633 | struct il_scanresults_notification { |
be663ab6 WYG |
2634 | u8 channel; |
2635 | u8 band; | |
2636 | u8 probe_status; | |
2637 | u8 num_probe_not_sent; /* not enough time to send */ | |
2638 | __le32 tsf_low; | |
2639 | __le32 tsf_high; | |
2640 | __le32 statistics[NUMBER_OF_STATISTICS]; | |
2641 | } __packed; | |
2642 | ||
2643 | /* | |
2644 | * SCAN_COMPLETE_NOTIFICATION = 0x84 (notification only, not a command) | |
2645 | */ | |
e2ebc833 | 2646 | struct il_scancomplete_notification { |
be663ab6 WYG |
2647 | u8 scanned_channels; |
2648 | u8 status; | |
2649 | u8 last_channel; | |
2650 | __le32 tsf_low; | |
2651 | __le32 tsf_high; | |
2652 | } __packed; | |
2653 | ||
2654 | ||
2655 | /****************************************************************************** | |
2656 | * (9) | |
2657 | * IBSS/AP Commands and Notifications: | |
2658 | * | |
2659 | *****************************************************************************/ | |
2660 | ||
e2ebc833 SG |
2661 | enum il_ibss_manager { |
2662 | IL_NOT_IBSS_MANAGER = 0, | |
2663 | IL_IBSS_MANAGER = 1, | |
be663ab6 WYG |
2664 | }; |
2665 | ||
2666 | /* | |
2667 | * BEACON_NOTIFICATION = 0x90 (notification only, not a command) | |
2668 | */ | |
2669 | ||
e2ebc833 SG |
2670 | struct il3945_beacon_notif { |
2671 | struct il3945_tx_resp beacon_notify_hdr; | |
be663ab6 WYG |
2672 | __le32 low_tsf; |
2673 | __le32 high_tsf; | |
2674 | __le32 ibss_mgr_status; | |
2675 | } __packed; | |
2676 | ||
e2ebc833 SG |
2677 | struct il4965_beacon_notif { |
2678 | struct il4965_tx_resp beacon_notify_hdr; | |
be663ab6 WYG |
2679 | __le32 low_tsf; |
2680 | __le32 high_tsf; | |
2681 | __le32 ibss_mgr_status; | |
2682 | } __packed; | |
2683 | ||
2684 | /* | |
2685 | * REPLY_TX_BEACON = 0x91 (command, has simple generic response) | |
2686 | */ | |
2687 | ||
e2ebc833 SG |
2688 | struct il3945_tx_beacon_cmd { |
2689 | struct il3945_tx_cmd tx; | |
be663ab6 WYG |
2690 | __le16 tim_idx; |
2691 | u8 tim_size; | |
2692 | u8 reserved1; | |
2693 | struct ieee80211_hdr frame[0]; /* beacon frame */ | |
2694 | } __packed; | |
2695 | ||
e2ebc833 SG |
2696 | struct il_tx_beacon_cmd { |
2697 | struct il_tx_cmd tx; | |
be663ab6 WYG |
2698 | __le16 tim_idx; |
2699 | u8 tim_size; | |
2700 | u8 reserved1; | |
2701 | struct ieee80211_hdr frame[0]; /* beacon frame */ | |
2702 | } __packed; | |
2703 | ||
2704 | /****************************************************************************** | |
2705 | * (10) | |
2706 | * Statistics Commands and Notifications: | |
2707 | * | |
2708 | *****************************************************************************/ | |
2709 | ||
e2ebc833 | 2710 | #define IL_TEMP_CONVERT 260 |
be663ab6 WYG |
2711 | |
2712 | #define SUP_RATE_11A_MAX_NUM_CHANNELS 8 | |
2713 | #define SUP_RATE_11B_MAX_NUM_CHANNELS 4 | |
2714 | #define SUP_RATE_11G_MAX_NUM_CHANNELS 12 | |
2715 | ||
2716 | /* Used for passing to driver number of successes and failures per rate */ | |
2717 | struct rate_histogram { | |
2718 | union { | |
2719 | __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS]; | |
2720 | __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS]; | |
2721 | __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS]; | |
2722 | } success; | |
2723 | union { | |
2724 | __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS]; | |
2725 | __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS]; | |
2726 | __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS]; | |
2727 | } failed; | |
2728 | } __packed; | |
2729 | ||
2730 | /* statistics command response */ | |
2731 | ||
2732 | struct iwl39_statistics_rx_phy { | |
2733 | __le32 ina_cnt; | |
2734 | __le32 fina_cnt; | |
2735 | __le32 plcp_err; | |
2736 | __le32 crc32_err; | |
2737 | __le32 overrun_err; | |
2738 | __le32 early_overrun_err; | |
2739 | __le32 crc32_good; | |
2740 | __le32 false_alarm_cnt; | |
2741 | __le32 fina_sync_err_cnt; | |
2742 | __le32 sfd_timeout; | |
2743 | __le32 fina_timeout; | |
2744 | __le32 unresponded_rts; | |
2745 | __le32 rxe_frame_limit_overrun; | |
2746 | __le32 sent_ack_cnt; | |
2747 | __le32 sent_cts_cnt; | |
2748 | } __packed; | |
2749 | ||
2750 | struct iwl39_statistics_rx_non_phy { | |
2751 | __le32 bogus_cts; /* CTS received when not expecting CTS */ | |
2752 | __le32 bogus_ack; /* ACK received when not expecting ACK */ | |
2753 | __le32 non_bssid_frames; /* number of frames with BSSID that | |
2754 | * doesn't belong to the STA BSSID */ | |
2755 | __le32 filtered_frames; /* count frames that were dumped in the | |
2756 | * filtering process */ | |
2757 | __le32 non_channel_beacons; /* beacons with our bss id but not on | |
2758 | * our serving channel */ | |
2759 | } __packed; | |
2760 | ||
2761 | struct iwl39_statistics_rx { | |
2762 | struct iwl39_statistics_rx_phy ofdm; | |
2763 | struct iwl39_statistics_rx_phy cck; | |
2764 | struct iwl39_statistics_rx_non_phy general; | |
2765 | } __packed; | |
2766 | ||
2767 | struct iwl39_statistics_tx { | |
2768 | __le32 preamble_cnt; | |
2769 | __le32 rx_detected_cnt; | |
2770 | __le32 bt_prio_defer_cnt; | |
2771 | __le32 bt_prio_kill_cnt; | |
2772 | __le32 few_bytes_cnt; | |
2773 | __le32 cts_timeout; | |
2774 | __le32 ack_timeout; | |
2775 | __le32 expected_ack_cnt; | |
2776 | __le32 actual_ack_cnt; | |
2777 | } __packed; | |
2778 | ||
2779 | struct statistics_dbg { | |
2780 | __le32 burst_check; | |
2781 | __le32 burst_count; | |
2782 | __le32 wait_for_silence_timeout_cnt; | |
2783 | __le32 reserved[3]; | |
2784 | } __packed; | |
2785 | ||
2786 | struct iwl39_statistics_div { | |
2787 | __le32 tx_on_a; | |
2788 | __le32 tx_on_b; | |
2789 | __le32 exec_time; | |
2790 | __le32 probe_time; | |
2791 | } __packed; | |
2792 | ||
2793 | struct iwl39_statistics_general { | |
2794 | __le32 temperature; | |
2795 | struct statistics_dbg dbg; | |
2796 | __le32 sleep_time; | |
2797 | __le32 slots_out; | |
2798 | __le32 slots_idle; | |
2799 | __le32 ttl_timestamp; | |
2800 | struct iwl39_statistics_div div; | |
2801 | } __packed; | |
2802 | ||
2803 | struct statistics_rx_phy { | |
2804 | __le32 ina_cnt; | |
2805 | __le32 fina_cnt; | |
2806 | __le32 plcp_err; | |
2807 | __le32 crc32_err; | |
2808 | __le32 overrun_err; | |
2809 | __le32 early_overrun_err; | |
2810 | __le32 crc32_good; | |
2811 | __le32 false_alarm_cnt; | |
2812 | __le32 fina_sync_err_cnt; | |
2813 | __le32 sfd_timeout; | |
2814 | __le32 fina_timeout; | |
2815 | __le32 unresponded_rts; | |
2816 | __le32 rxe_frame_limit_overrun; | |
2817 | __le32 sent_ack_cnt; | |
2818 | __le32 sent_cts_cnt; | |
2819 | __le32 sent_ba_rsp_cnt; | |
2820 | __le32 dsp_self_kill; | |
2821 | __le32 mh_format_err; | |
2822 | __le32 re_acq_main_rssi_sum; | |
2823 | __le32 reserved3; | |
2824 | } __packed; | |
2825 | ||
2826 | struct statistics_rx_ht_phy { | |
2827 | __le32 plcp_err; | |
2828 | __le32 overrun_err; | |
2829 | __le32 early_overrun_err; | |
2830 | __le32 crc32_good; | |
2831 | __le32 crc32_err; | |
2832 | __le32 mh_format_err; | |
2833 | __le32 agg_crc32_good; | |
2834 | __le32 agg_mpdu_cnt; | |
2835 | __le32 agg_cnt; | |
2836 | __le32 unsupport_mcs; | |
2837 | } __packed; | |
2838 | ||
2839 | #define INTERFERENCE_DATA_AVAILABLE cpu_to_le32(1) | |
2840 | ||
2841 | struct statistics_rx_non_phy { | |
2842 | __le32 bogus_cts; /* CTS received when not expecting CTS */ | |
2843 | __le32 bogus_ack; /* ACK received when not expecting ACK */ | |
2844 | __le32 non_bssid_frames; /* number of frames with BSSID that | |
2845 | * doesn't belong to the STA BSSID */ | |
2846 | __le32 filtered_frames; /* count frames that were dumped in the | |
2847 | * filtering process */ | |
2848 | __le32 non_channel_beacons; /* beacons with our bss id but not on | |
2849 | * our serving channel */ | |
2850 | __le32 channel_beacons; /* beacons with our bss id and in our | |
2851 | * serving channel */ | |
2852 | __le32 num_missed_bcon; /* number of missed beacons */ | |
2853 | __le32 adc_rx_saturation_time; /* count in 0.8us units the time the | |
2854 | * ADC was in saturation */ | |
2855 | __le32 ina_detection_search_time;/* total time (in 0.8us) searched | |
2856 | * for INA */ | |
2857 | __le32 beacon_silence_rssi_a; /* RSSI silence after beacon frame */ | |
2858 | __le32 beacon_silence_rssi_b; /* RSSI silence after beacon frame */ | |
2859 | __le32 beacon_silence_rssi_c; /* RSSI silence after beacon frame */ | |
2860 | __le32 interference_data_flag; /* flag for interference data | |
2861 | * availability. 1 when data is | |
2862 | * available. */ | |
2863 | __le32 channel_load; /* counts RX Enable time in uSec */ | |
2864 | __le32 dsp_false_alarms; /* DSP false alarm (both OFDM | |
2865 | * and CCK) counter */ | |
2866 | __le32 beacon_rssi_a; | |
2867 | __le32 beacon_rssi_b; | |
2868 | __le32 beacon_rssi_c; | |
2869 | __le32 beacon_energy_a; | |
2870 | __le32 beacon_energy_b; | |
2871 | __le32 beacon_energy_c; | |
2872 | } __packed; | |
2873 | ||
2874 | struct statistics_rx { | |
2875 | struct statistics_rx_phy ofdm; | |
2876 | struct statistics_rx_phy cck; | |
2877 | struct statistics_rx_non_phy general; | |
2878 | struct statistics_rx_ht_phy ofdm_ht; | |
2879 | } __packed; | |
2880 | ||
2881 | /** | |
2882 | * struct statistics_tx_power - current tx power | |
2883 | * | |
2884 | * @ant_a: current tx power on chain a in 1/2 dB step | |
2885 | * @ant_b: current tx power on chain b in 1/2 dB step | |
2886 | * @ant_c: current tx power on chain c in 1/2 dB step | |
2887 | */ | |
2888 | struct statistics_tx_power { | |
2889 | u8 ant_a; | |
2890 | u8 ant_b; | |
2891 | u8 ant_c; | |
2892 | u8 reserved; | |
2893 | } __packed; | |
2894 | ||
2895 | struct statistics_tx_non_phy_agg { | |
2896 | __le32 ba_timeout; | |
2897 | __le32 ba_reschedule_frames; | |
2898 | __le32 scd_query_agg_frame_cnt; | |
2899 | __le32 scd_query_no_agg; | |
2900 | __le32 scd_query_agg; | |
2901 | __le32 scd_query_mismatch; | |
2902 | __le32 frame_not_ready; | |
2903 | __le32 underrun; | |
2904 | __le32 bt_prio_kill; | |
2905 | __le32 rx_ba_rsp_cnt; | |
2906 | } __packed; | |
2907 | ||
2908 | struct statistics_tx { | |
2909 | __le32 preamble_cnt; | |
2910 | __le32 rx_detected_cnt; | |
2911 | __le32 bt_prio_defer_cnt; | |
2912 | __le32 bt_prio_kill_cnt; | |
2913 | __le32 few_bytes_cnt; | |
2914 | __le32 cts_timeout; | |
2915 | __le32 ack_timeout; | |
2916 | __le32 expected_ack_cnt; | |
2917 | __le32 actual_ack_cnt; | |
2918 | __le32 dump_msdu_cnt; | |
2919 | __le32 burst_abort_next_frame_mismatch_cnt; | |
2920 | __le32 burst_abort_missing_next_frame_cnt; | |
2921 | __le32 cts_timeout_collision; | |
2922 | __le32 ack_or_ba_timeout_collision; | |
2923 | struct statistics_tx_non_phy_agg agg; | |
2924 | ||
2925 | __le32 reserved1; | |
2926 | } __packed; | |
2927 | ||
2928 | ||
2929 | struct statistics_div { | |
2930 | __le32 tx_on_a; | |
2931 | __le32 tx_on_b; | |
2932 | __le32 exec_time; | |
2933 | __le32 probe_time; | |
2934 | __le32 reserved1; | |
2935 | __le32 reserved2; | |
2936 | } __packed; | |
2937 | ||
2938 | struct statistics_general_common { | |
2939 | __le32 temperature; /* radio temperature */ | |
2940 | struct statistics_dbg dbg; | |
2941 | __le32 sleep_time; | |
2942 | __le32 slots_out; | |
2943 | __le32 slots_idle; | |
2944 | __le32 ttl_timestamp; | |
2945 | struct statistics_div div; | |
2946 | __le32 rx_enable_counter; | |
2947 | /* | |
2948 | * num_of_sos_states: | |
2949 | * count the number of times we have to re-tune | |
2950 | * in order to get out of bad PHY status | |
2951 | */ | |
2952 | __le32 num_of_sos_states; | |
2953 | } __packed; | |
2954 | ||
2955 | struct statistics_general { | |
2956 | struct statistics_general_common common; | |
2957 | __le32 reserved2; | |
2958 | __le32 reserved3; | |
2959 | } __packed; | |
2960 | ||
2961 | #define UCODE_STATISTICS_CLEAR_MSK (0x1 << 0) | |
2962 | #define UCODE_STATISTICS_FREQUENCY_MSK (0x1 << 1) | |
2963 | #define UCODE_STATISTICS_NARROW_BAND_MSK (0x1 << 2) | |
2964 | ||
2965 | /* | |
2966 | * REPLY_STATISTICS_CMD = 0x9c, | |
2967 | * all devices identical. | |
2968 | * | |
2969 | * This command triggers an immediate response containing uCode statistics. | |
2970 | * The response is in the same format as STATISTICS_NOTIFICATION 0x9d, below. | |
2971 | * | |
2972 | * If the CLEAR_STATS configuration flag is set, uCode will clear its | |
2973 | * internal copy of the statistics (counters) after issuing the response. | |
2974 | * This flag does not affect STATISTICS_NOTIFICATIONs after beacons (see below). | |
2975 | * | |
2976 | * If the DISABLE_NOTIF configuration flag is set, uCode will not issue | |
2977 | * STATISTICS_NOTIFICATIONs after received beacons (see below). This flag | |
2978 | * does not affect the response to the REPLY_STATISTICS_CMD 0x9c itself. | |
2979 | */ | |
e2ebc833 SG |
2980 | #define IL_STATS_CONF_CLEAR_STATS cpu_to_le32(0x1) /* see above */ |
2981 | #define IL_STATS_CONF_DISABLE_NOTIF cpu_to_le32(0x2)/* see above */ | |
2982 | struct il_statistics_cmd { | |
2983 | __le32 configuration_flags; /* IL_STATS_CONF_* */ | |
be663ab6 WYG |
2984 | } __packed; |
2985 | ||
2986 | /* | |
2987 | * STATISTICS_NOTIFICATION = 0x9d (notification only, not a command) | |
2988 | * | |
2989 | * By default, uCode issues this notification after receiving a beacon | |
2990 | * while associated. To disable this behavior, set DISABLE_NOTIF flag in the | |
2991 | * REPLY_STATISTICS_CMD 0x9c, above. | |
2992 | * | |
2993 | * Statistics counters continue to increment beacon after beacon, but are | |
2994 | * cleared when changing channels or when driver issues REPLY_STATISTICS_CMD | |
2995 | * 0x9c with CLEAR_STATS bit set (see above). | |
2996 | * | |
2997 | * uCode also issues this notification during scans. uCode clears statistics | |
2998 | * appropriately so that each notification contains statistics for only the | |
2999 | * one channel that has just been scanned. | |
3000 | */ | |
3001 | #define STATISTICS_REPLY_FLG_BAND_24G_MSK cpu_to_le32(0x2) | |
3002 | #define STATISTICS_REPLY_FLG_HT40_MODE_MSK cpu_to_le32(0x8) | |
3003 | ||
e2ebc833 | 3004 | struct il3945_notif_statistics { |
be663ab6 WYG |
3005 | __le32 flag; |
3006 | struct iwl39_statistics_rx rx; | |
3007 | struct iwl39_statistics_tx tx; | |
3008 | struct iwl39_statistics_general general; | |
3009 | } __packed; | |
3010 | ||
e2ebc833 | 3011 | struct il_notif_statistics { |
be663ab6 WYG |
3012 | __le32 flag; |
3013 | struct statistics_rx rx; | |
3014 | struct statistics_tx tx; | |
3015 | struct statistics_general general; | |
3016 | } __packed; | |
3017 | ||
3018 | /* | |
3019 | * MISSED_BEACONS_NOTIFICATION = 0xa2 (notification only, not a command) | |
3020 | * | |
3021 | * uCode send MISSED_BEACONS_NOTIFICATION to driver when detect beacon missed | |
3022 | * in regardless of how many missed beacons, which mean when driver receive the | |
3023 | * notification, inside the command, it can find all the beacons information | |
3024 | * which include number of total missed beacons, number of consecutive missed | |
3025 | * beacons, number of beacons received and number of beacons expected to | |
3026 | * receive. | |
3027 | * | |
3028 | * If uCode detected consecutive_missed_beacons > 5, it will reset the radio | |
3029 | * in order to bring the radio/PHY back to working state; which has no relation | |
3030 | * to when driver will perform sensitivity calibration. | |
3031 | * | |
3032 | * Driver should set it own missed_beacon_threshold to decide when to perform | |
3033 | * sensitivity calibration based on number of consecutive missed beacons in | |
3034 | * order to improve overall performance, especially in noisy environment. | |
3035 | * | |
3036 | */ | |
3037 | ||
e2ebc833 SG |
3038 | #define IL_MISSED_BEACON_THRESHOLD_MIN (1) |
3039 | #define IL_MISSED_BEACON_THRESHOLD_DEF (5) | |
3040 | #define IL_MISSED_BEACON_THRESHOLD_MAX IL_MISSED_BEACON_THRESHOLD_DEF | |
be663ab6 | 3041 | |
e2ebc833 | 3042 | struct il_missed_beacon_notif { |
be663ab6 WYG |
3043 | __le32 consecutive_missed_beacons; |
3044 | __le32 total_missed_becons; | |
3045 | __le32 num_expected_beacons; | |
3046 | __le32 num_recvd_beacons; | |
3047 | } __packed; | |
3048 | ||
3049 | ||
3050 | /****************************************************************************** | |
3051 | * (11) | |
3052 | * Rx Calibration Commands: | |
3053 | * | |
3054 | * With the uCode used for open source drivers, most Tx calibration (except | |
3055 | * for Tx Power) and most Rx calibration is done by uCode during the | |
3056 | * "initialize" phase of uCode boot. Driver must calibrate only: | |
3057 | * | |
3058 | * 1) Tx power (depends on temperature), described elsewhere | |
3059 | * 2) Receiver gain balance (optimize MIMO, and detect disconnected antennas) | |
3060 | * 3) Receiver sensitivity (to optimize signal detection) | |
3061 | * | |
3062 | *****************************************************************************/ | |
3063 | ||
3064 | /** | |
3065 | * SENSITIVITY_CMD = 0xa8 (command, has simple generic response) | |
3066 | * | |
3067 | * This command sets up the Rx signal detector for a sensitivity level that | |
3068 | * is high enough to lock onto all signals within the associated network, | |
3069 | * but low enough to ignore signals that are below a certain threshold, so as | |
3070 | * not to have too many "false alarms". False alarms are signals that the | |
3071 | * Rx DSP tries to lock onto, but then discards after determining that they | |
3072 | * are noise. | |
3073 | * | |
3074 | * The optimum number of false alarms is between 5 and 50 per 200 TUs | |
3075 | * (200 * 1024 uSecs, i.e. 204.8 milliseconds) of actual Rx time (i.e. | |
3076 | * time listening, not transmitting). Driver must adjust sensitivity so that | |
3077 | * the ratio of actual false alarms to actual Rx time falls within this range. | |
3078 | * | |
3079 | * While associated, uCode delivers STATISTICS_NOTIFICATIONs after each | |
3080 | * received beacon. These provide information to the driver to analyze the | |
3081 | * sensitivity. Don't analyze statistics that come in from scanning, or any | |
3082 | * other non-associated-network source. Pertinent statistics include: | |
3083 | * | |
3084 | * From "general" statistics (struct statistics_rx_non_phy): | |
3085 | * | |
3086 | * (beacon_energy_[abc] & 0x0FF00) >> 8 (unsigned, higher value is lower level) | |
3087 | * Measure of energy of desired signal. Used for establishing a level | |
3088 | * below which the device does not detect signals. | |
3089 | * | |
3090 | * (beacon_silence_rssi_[abc] & 0x0FF00) >> 8 (unsigned, units in dB) | |
3091 | * Measure of background noise in silent period after beacon. | |
3092 | * | |
3093 | * channel_load | |
3094 | * uSecs of actual Rx time during beacon period (varies according to | |
3095 | * how much time was spent transmitting). | |
3096 | * | |
3097 | * From "cck" and "ofdm" statistics (struct statistics_rx_phy), separately: | |
3098 | * | |
3099 | * false_alarm_cnt | |
3100 | * Signal locks abandoned early (before phy-level header). | |
3101 | * | |
3102 | * plcp_err | |
3103 | * Signal locks abandoned late (during phy-level header). | |
3104 | * | |
3105 | * NOTE: Both false_alarm_cnt and plcp_err increment monotonically from | |
3106 | * beacon to beacon, i.e. each value is an accumulation of all errors | |
3107 | * before and including the latest beacon. Values will wrap around to 0 | |
3108 | * after counting up to 2^32 - 1. Driver must differentiate vs. | |
3109 | * previous beacon's values to determine # false alarms in the current | |
3110 | * beacon period. | |
3111 | * | |
3112 | * Total number of false alarms = false_alarms + plcp_errs | |
3113 | * | |
e2ebc833 | 3114 | * For OFDM, adjust the following table entries in struct il_sensitivity_cmd |
be663ab6 WYG |
3115 | * (notice that the start points for OFDM are at or close to settings for |
3116 | * maximum sensitivity): | |
3117 | * | |
3118 | * START / MIN / MAX | |
3119 | * HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX 90 / 85 / 120 | |
3120 | * HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX 170 / 170 / 210 | |
3121 | * HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX 105 / 105 / 140 | |
3122 | * HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX 220 / 220 / 270 | |
3123 | * | |
3124 | * If actual rate of OFDM false alarms (+ plcp_errors) is too high | |
3125 | * (greater than 50 for each 204.8 msecs listening), reduce sensitivity | |
3126 | * by *adding* 1 to all 4 of the table entries above, up to the max for | |
3127 | * each entry. Conversely, if false alarm rate is too low (less than 5 | |
3128 | * for each 204.8 msecs listening), *subtract* 1 from each entry to | |
3129 | * increase sensitivity. | |
3130 | * | |
3131 | * For CCK sensitivity, keep track of the following: | |
3132 | * | |
3133 | * 1). 20-beacon history of maximum background noise, indicated by | |
3134 | * (beacon_silence_rssi_[abc] & 0x0FF00), units in dB, across the | |
3135 | * 3 receivers. For any given beacon, the "silence reference" is | |
3136 | * the maximum of last 60 samples (20 beacons * 3 receivers). | |
3137 | * | |
3138 | * 2). 10-beacon history of strongest signal level, as indicated | |
3139 | * by (beacon_energy_[abc] & 0x0FF00) >> 8, across the 3 receivers, | |
3140 | * i.e. the strength of the signal through the best receiver at the | |
3141 | * moment. These measurements are "upside down", with lower values | |
3142 | * for stronger signals, so max energy will be *minimum* value. | |
3143 | * | |
3144 | * Then for any given beacon, the driver must determine the *weakest* | |
3145 | * of the strongest signals; this is the minimum level that needs to be | |
3146 | * successfully detected, when using the best receiver at the moment. | |
3147 | * "Max cck energy" is the maximum (higher value means lower energy!) | |
3148 | * of the last 10 minima. Once this is determined, driver must add | |
3149 | * a little margin by adding "6" to it. | |
3150 | * | |
3151 | * 3). Number of consecutive beacon periods with too few false alarms. | |
3152 | * Reset this to 0 at the first beacon period that falls within the | |
3153 | * "good" range (5 to 50 false alarms per 204.8 milliseconds rx). | |
3154 | * | |
e2ebc833 | 3155 | * Then, adjust the following CCK table entries in struct il_sensitivity_cmd |
be663ab6 WYG |
3156 | * (notice that the start points for CCK are at maximum sensitivity): |
3157 | * | |
3158 | * START / MIN / MAX | |
3159 | * HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX 125 / 125 / 200 | |
3160 | * HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX 200 / 200 / 400 | |
3161 | * HD_MIN_ENERGY_CCK_DET_INDEX 100 / 0 / 100 | |
3162 | * | |
3163 | * If actual rate of CCK false alarms (+ plcp_errors) is too high | |
3164 | * (greater than 50 for each 204.8 msecs listening), method for reducing | |
3165 | * sensitivity is: | |
3166 | * | |
3167 | * 1) *Add* 3 to value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX, | |
3168 | * up to max 400. | |
3169 | * | |
3170 | * 2) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX is < 160, | |
3171 | * sensitivity has been reduced a significant amount; bring it up to | |
3172 | * a moderate 161. Otherwise, *add* 3, up to max 200. | |
3173 | * | |
3174 | * 3) a) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX is > 160, | |
3175 | * sensitivity has been reduced only a moderate or small amount; | |
3176 | * *subtract* 2 from value in HD_MIN_ENERGY_CCK_DET_INDEX, | |
3177 | * down to min 0. Otherwise (if gain has been significantly reduced), | |
3178 | * don't change the HD_MIN_ENERGY_CCK_DET_INDEX value. | |
3179 | * | |
3180 | * b) Save a snapshot of the "silence reference". | |
3181 | * | |
3182 | * If actual rate of CCK false alarms (+ plcp_errors) is too low | |
3183 | * (less than 5 for each 204.8 msecs listening), method for increasing | |
3184 | * sensitivity is used only if: | |
3185 | * | |
3186 | * 1a) Previous beacon did not have too many false alarms | |
3187 | * 1b) AND difference between previous "silence reference" and current | |
3188 | * "silence reference" (prev - current) is 2 or more, | |
3189 | * OR 2) 100 or more consecutive beacon periods have had rate of | |
3190 | * less than 5 false alarms per 204.8 milliseconds rx time. | |
3191 | * | |
3192 | * Method for increasing sensitivity: | |
3193 | * | |
3194 | * 1) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX, | |
3195 | * down to min 125. | |
3196 | * | |
3197 | * 2) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX, | |
3198 | * down to min 200. | |
3199 | * | |
3200 | * 3) *Add* 2 to value in HD_MIN_ENERGY_CCK_DET_INDEX, up to max 100. | |
3201 | * | |
3202 | * If actual rate of CCK false alarms (+ plcp_errors) is within good range | |
3203 | * (between 5 and 50 for each 204.8 msecs listening): | |
3204 | * | |
3205 | * 1) Save a snapshot of the silence reference. | |
3206 | * | |
3207 | * 2) If previous beacon had too many CCK false alarms (+ plcp_errors), | |
3208 | * give some extra margin to energy threshold by *subtracting* 8 | |
3209 | * from value in HD_MIN_ENERGY_CCK_DET_INDEX. | |
3210 | * | |
3211 | * For all cases (too few, too many, good range), make sure that the CCK | |
3212 | * detection threshold (energy) is below the energy level for robust | |
3213 | * detection over the past 10 beacon periods, the "Max cck energy". | |
3214 | * Lower values mean higher energy; this means making sure that the value | |
3215 | * in HD_MIN_ENERGY_CCK_DET_INDEX is at or *above* "Max cck energy". | |
3216 | * | |
3217 | */ | |
3218 | ||
3219 | /* | |
e2ebc833 | 3220 | * Table entries in SENSITIVITY_CMD (struct il_sensitivity_cmd) |
be663ab6 WYG |
3221 | */ |
3222 | #define HD_TABLE_SIZE (11) /* number of entries */ | |
3223 | #define HD_MIN_ENERGY_CCK_DET_INDEX (0) /* table indexes */ | |
3224 | #define HD_MIN_ENERGY_OFDM_DET_INDEX (1) | |
3225 | #define HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX (2) | |
3226 | #define HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX (3) | |
3227 | #define HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX (4) | |
3228 | #define HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX (5) | |
3229 | #define HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX (6) | |
3230 | #define HD_BARKER_CORR_TH_ADD_MIN_INDEX (7) | |
3231 | #define HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX (8) | |
3232 | #define HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX (9) | |
3233 | #define HD_OFDM_ENERGY_TH_IN_INDEX (10) | |
3234 | ||
e2ebc833 | 3235 | /* Control field in struct il_sensitivity_cmd */ |
be663ab6 WYG |
3236 | #define SENSITIVITY_CMD_CONTROL_DEFAULT_TABLE cpu_to_le16(0) |
3237 | #define SENSITIVITY_CMD_CONTROL_WORK_TABLE cpu_to_le16(1) | |
3238 | ||
3239 | /** | |
e2ebc833 | 3240 | * struct il_sensitivity_cmd |
be663ab6 WYG |
3241 | * @control: (1) updates working table, (0) updates default table |
3242 | * @table: energy threshold values, use HD_* as index into table | |
3243 | * | |
3244 | * Always use "1" in "control" to update uCode's working table and DSP. | |
3245 | */ | |
e2ebc833 | 3246 | struct il_sensitivity_cmd { |
be663ab6 WYG |
3247 | __le16 control; /* always use "1" */ |
3248 | __le16 table[HD_TABLE_SIZE]; /* use HD_* as index */ | |
3249 | } __packed; | |
3250 | ||
3251 | ||
3252 | /** | |
3253 | * REPLY_PHY_CALIBRATION_CMD = 0xb0 (command, has simple generic response) | |
3254 | * | |
3255 | * This command sets the relative gains of 4965 device's 3 radio receiver chains. | |
3256 | * | |
3257 | * After the first association, driver should accumulate signal and noise | |
3258 | * statistics from the STATISTICS_NOTIFICATIONs that follow the first 20 | |
3259 | * beacons from the associated network (don't collect statistics that come | |
3260 | * in from scanning, or any other non-network source). | |
3261 | * | |
3262 | * DISCONNECTED ANTENNA: | |
3263 | * | |
3264 | * Driver should determine which antennas are actually connected, by comparing | |
3265 | * average beacon signal levels for the 3 Rx chains. Accumulate (add) the | |
3266 | * following values over 20 beacons, one accumulator for each of the chains | |
3267 | * a/b/c, from struct statistics_rx_non_phy: | |
3268 | * | |
3269 | * beacon_rssi_[abc] & 0x0FF (unsigned, units in dB) | |
3270 | * | |
3271 | * Find the strongest signal from among a/b/c. Compare the other two to the | |
3272 | * strongest. If any signal is more than 15 dB (times 20, unless you | |
3273 | * divide the accumulated values by 20) below the strongest, the driver | |
3274 | * considers that antenna to be disconnected, and should not try to use that | |
3275 | * antenna/chain for Rx or Tx. If both A and B seem to be disconnected, | |
3276 | * driver should declare the stronger one as connected, and attempt to use it | |
3277 | * (A and B are the only 2 Tx chains!). | |
3278 | * | |
3279 | * | |
3280 | * RX BALANCE: | |
3281 | * | |
3282 | * Driver should balance the 3 receivers (but just the ones that are connected | |
3283 | * to antennas, see above) for gain, by comparing the average signal levels | |
3284 | * detected during the silence after each beacon (background noise). | |
3285 | * Accumulate (add) the following values over 20 beacons, one accumulator for | |
3286 | * each of the chains a/b/c, from struct statistics_rx_non_phy: | |
3287 | * | |
3288 | * beacon_silence_rssi_[abc] & 0x0FF (unsigned, units in dB) | |
3289 | * | |
3290 | * Find the weakest background noise level from among a/b/c. This Rx chain | |
3291 | * will be the reference, with 0 gain adjustment. Attenuate other channels by | |
3292 | * finding noise difference: | |
3293 | * | |
3294 | * (accum_noise[i] - accum_noise[reference]) / 30 | |
3295 | * | |
3296 | * The "30" adjusts the dB in the 20 accumulated samples to units of 1.5 dB. | |
e2ebc833 | 3297 | * For use in diff_gain_[abc] fields of struct il_calibration_cmd, the |
be663ab6 WYG |
3298 | * driver should limit the difference results to a range of 0-3 (0-4.5 dB), |
3299 | * and set bit 2 to indicate "reduce gain". The value for the reference | |
3300 | * (weakest) chain should be "0". | |
3301 | * | |
3302 | * diff_gain_[abc] bit fields: | |
3303 | * 2: (1) reduce gain, (0) increase gain | |
3304 | * 1-0: amount of gain, units of 1.5 dB | |
3305 | */ | |
3306 | ||
3307 | /* Phy calibration command for series */ | |
3308 | /* The default calibrate table size if not specified by firmware */ | |
e2ebc833 | 3309 | #define IL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE 18 |
be663ab6 | 3310 | enum { |
e2ebc833 SG |
3311 | IL_PHY_CALIBRATE_DIFF_GAIN_CMD = 7, |
3312 | IL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE = 19, | |
be663ab6 WYG |
3313 | }; |
3314 | ||
e2ebc833 | 3315 | #define IL_MAX_PHY_CALIBRATE_TBL_SIZE (253) |
be663ab6 | 3316 | |
e2ebc833 | 3317 | struct il_calib_hdr { |
be663ab6 WYG |
3318 | u8 op_code; |
3319 | u8 first_group; | |
3320 | u8 groups_num; | |
3321 | u8 data_valid; | |
3322 | } __packed; | |
3323 | ||
e2ebc833 SG |
3324 | /* IL_PHY_CALIBRATE_DIFF_GAIN_CMD (7) */ |
3325 | struct il_calib_diff_gain_cmd { | |
3326 | struct il_calib_hdr hdr; | |
be663ab6 WYG |
3327 | s8 diff_gain_a; /* see above */ |
3328 | s8 diff_gain_b; | |
3329 | s8 diff_gain_c; | |
3330 | u8 reserved1; | |
3331 | } __packed; | |
3332 | ||
3333 | /****************************************************************************** | |
3334 | * (12) | |
3335 | * Miscellaneous Commands: | |
3336 | * | |
3337 | *****************************************************************************/ | |
3338 | ||
3339 | /* | |
3340 | * LEDs Command & Response | |
3341 | * REPLY_LEDS_CMD = 0x48 (command, has simple generic response) | |
3342 | * | |
3343 | * For each of 3 possible LEDs (Activity/Link/Tech, selected by "id" field), | |
3344 | * this command turns it on or off, or sets up a periodic blinking cycle. | |
3345 | */ | |
e2ebc833 | 3346 | struct il_led_cmd { |
be663ab6 WYG |
3347 | __le32 interval; /* "interval" in uSec */ |
3348 | u8 id; /* 1: Activity, 2: Link, 3: Tech */ | |
3349 | u8 off; /* # intervals off while blinking; | |
3350 | * "0", with >0 "on" value, turns LED on */ | |
3351 | u8 on; /* # intervals on while blinking; | |
3352 | * "0", regardless of "off", turns LED off */ | |
3353 | u8 reserved; | |
3354 | } __packed; | |
3355 | ||
3356 | ||
3357 | /****************************************************************************** | |
3358 | * (13) | |
3359 | * Union of all expected notifications/responses: | |
3360 | * | |
3361 | *****************************************************************************/ | |
3362 | ||
e2ebc833 | 3363 | struct il_rx_packet { |
be663ab6 WYG |
3364 | /* |
3365 | * The first 4 bytes of the RX frame header contain both the RX frame | |
3366 | * size and some flags. | |
3367 | * Bit fields: | |
3368 | * 31: flag flush RB request | |
3369 | * 30: flag ignore TC (terminal counter) request | |
3370 | * 29: flag fast IRQ request | |
3371 | * 28-14: Reserved | |
3372 | * 13-00: RX frame size | |
3373 | */ | |
3374 | __le32 len_n_flags; | |
e2ebc833 | 3375 | struct il_cmd_header hdr; |
be663ab6 | 3376 | union { |
e2ebc833 SG |
3377 | struct il3945_rx_frame rx_frame; |
3378 | struct il3945_tx_resp tx_resp; | |
3379 | struct il3945_beacon_notif beacon_status; | |
3380 | ||
3381 | struct il_alive_resp alive_frame; | |
3382 | struct il_spectrum_notification spectrum_notif; | |
3383 | struct il_csa_notification csa_notif; | |
3384 | struct il_error_resp err_resp; | |
3385 | struct il_card_state_notif card_state_notif; | |
3386 | struct il_add_sta_resp add_sta; | |
3387 | struct il_rem_sta_resp rem_sta; | |
3388 | struct il_sleep_notification sleep_notif; | |
3389 | struct il_spectrum_resp spectrum; | |
3390 | struct il_notif_statistics stats; | |
3391 | struct il_compressed_ba_resp compressed_ba; | |
3392 | struct il_missed_beacon_notif missed_beacon; | |
be663ab6 WYG |
3393 | __le32 status; |
3394 | u8 raw[0]; | |
3395 | } u; | |
3396 | } __packed; | |
3397 | ||
e2ebc833 | 3398 | #endif /* __il_commands_h__ */ |