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iwlwifi: mvm: BT Coex - remove shadowing variable
[linux-2.6/btrfs-unstable.git] / drivers / net / wireless / iwlwifi / mvm / coex.c
blob75178f35f04231e42ddecbd08bc9fe3de0564c26
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) 2013 - 2014 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 COPYING.
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) 2013 - 2014 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 #include <linux/ieee80211.h>
65 #include <linux/etherdevice.h>
66 #include <net/mac80211.h>
67
68 #include "fw-api-coex.h"
69 #include "iwl-modparams.h"
70 #include "mvm.h"
71 #include "iwl-debug.h"
72
73 #define BT_ANTENNA_COUPLING_THRESHOLD (30)
74
75 const u32 iwl_bt_ctl_kill_msk[BT_KILL_MSK_MAX] = {
76 [BT_KILL_MSK_DEFAULT] = 0xfffffc00,
77 [BT_KILL_MSK_NEVER] = 0xffffffff,
78 [BT_KILL_MSK_ALWAYS] = 0,
79 };
80
81 const u8 iwl_bt_cts_kill_msk[BT_MAX_AG][BT_COEX_MAX_LUT] = {
82 {
83 BT_KILL_MSK_ALWAYS,
84 BT_KILL_MSK_ALWAYS,
85 BT_KILL_MSK_ALWAYS,
86 },
87 {
88 BT_KILL_MSK_NEVER,
89 BT_KILL_MSK_NEVER,
90 BT_KILL_MSK_NEVER,
91 },
92 {
93 BT_KILL_MSK_NEVER,
94 BT_KILL_MSK_NEVER,
95 BT_KILL_MSK_NEVER,
96 },
97 {
98 BT_KILL_MSK_DEFAULT,
99 BT_KILL_MSK_NEVER,
100 BT_KILL_MSK_DEFAULT,
101 },
102 };
103
104 const u8 iwl_bt_ack_kill_msk[BT_MAX_AG][BT_COEX_MAX_LUT] = {
105 {
106 BT_KILL_MSK_ALWAYS,
107 BT_KILL_MSK_ALWAYS,
108 BT_KILL_MSK_ALWAYS,
109 },
110 {
111 BT_KILL_MSK_ALWAYS,
112 BT_KILL_MSK_ALWAYS,
113 BT_KILL_MSK_ALWAYS,
114 },
115 {
116 BT_KILL_MSK_ALWAYS,
117 BT_KILL_MSK_ALWAYS,
118 BT_KILL_MSK_ALWAYS,
119 },
120 {
121 BT_KILL_MSK_DEFAULT,
122 BT_KILL_MSK_ALWAYS,
123 BT_KILL_MSK_DEFAULT,
124 },
125 };
126
127 static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = {
128 cpu_to_le32(0xf0f0f0f0), /* 50% */
129 cpu_to_le32(0xc0c0c0c0), /* 25% */
130 cpu_to_le32(0xfcfcfcfc), /* 75% */
131 cpu_to_le32(0xfefefefe), /* 87.5% */
132 };
133
134 static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
135 {
136 cpu_to_le32(0x40000000),
137 cpu_to_le32(0x00000000),
138 cpu_to_le32(0x44000000),
139 cpu_to_le32(0x00000000),
140 cpu_to_le32(0x40000000),
141 cpu_to_le32(0x00000000),
142 cpu_to_le32(0x44000000),
143 cpu_to_le32(0x00000000),
144 cpu_to_le32(0xc0004000),
145 cpu_to_le32(0xf0005000),
146 cpu_to_le32(0xc0004000),
147 cpu_to_le32(0xf0005000),
148 },
149 {
150 cpu_to_le32(0x40000000),
151 cpu_to_le32(0x00000000),
152 cpu_to_le32(0x44000000),
153 cpu_to_le32(0x00000000),
154 cpu_to_le32(0x40000000),
155 cpu_to_le32(0x00000000),
156 cpu_to_le32(0x44000000),
157 cpu_to_le32(0x00000000),
158 cpu_to_le32(0xc0004000),
159 cpu_to_le32(0xf0005000),
160 cpu_to_le32(0xc0004000),
161 cpu_to_le32(0xf0005000),
162 },
163 {
164 cpu_to_le32(0x40000000),
165 cpu_to_le32(0x00000000),
166 cpu_to_le32(0x44000000),
167 cpu_to_le32(0x00000000),
168 cpu_to_le32(0x40000000),
169 cpu_to_le32(0x00000000),
170 cpu_to_le32(0x44000000),
171 cpu_to_le32(0x00000000),
172 cpu_to_le32(0xc0004000),
173 cpu_to_le32(0xf0005000),
174 cpu_to_le32(0xc0004000),
175 cpu_to_le32(0xf0005000),
176 },
177 };
178
179 static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
180 {
181 /* Tight */
182 cpu_to_le32(0xaaaaaaaa),
183 cpu_to_le32(0xaaaaaaaa),
184 cpu_to_le32(0xaeaaaaaa),
185 cpu_to_le32(0xaaaaaaaa),
186 cpu_to_le32(0xcc00ff28),
187 cpu_to_le32(0x0000aaaa),
188 cpu_to_le32(0xcc00aaaa),
189 cpu_to_le32(0x0000aaaa),
190 cpu_to_le32(0xc0004000),
191 cpu_to_le32(0x00004000),
192 cpu_to_le32(0xf0005000),
193 cpu_to_le32(0xf0005000),
194 },
195 {
196 /* Loose */
197 cpu_to_le32(0xaaaaaaaa),
198 cpu_to_le32(0xaaaaaaaa),
199 cpu_to_le32(0xaaaaaaaa),
200 cpu_to_le32(0xaaaaaaaa),
201 cpu_to_le32(0xcc00ff28),
202 cpu_to_le32(0x0000aaaa),
203 cpu_to_le32(0xcc00aaaa),
204 cpu_to_le32(0x0000aaaa),
205 cpu_to_le32(0x00000000),
206 cpu_to_le32(0x00000000),
207 cpu_to_le32(0xf0005000),
208 cpu_to_le32(0xf0005000),
209 },
210 {
211 /* Tx Tx disabled */
212 cpu_to_le32(0xaaaaaaaa),
213 cpu_to_le32(0xaaaaaaaa),
214 cpu_to_le32(0xeeaaaaaa),
215 cpu_to_le32(0xaaaaaaaa),
216 cpu_to_le32(0xcc00ff28),
217 cpu_to_le32(0x0000aaaa),
218 cpu_to_le32(0xcc00aaaa),
219 cpu_to_le32(0x0000aaaa),
220 cpu_to_le32(0xc0004000),
221 cpu_to_le32(0xc0004000),
222 cpu_to_le32(0xf0005000),
223 cpu_to_le32(0xf0005000),
224 },
225 };
226
227 /* 20MHz / 40MHz below / 40Mhz above*/
228 static const __le64 iwl_ci_mask[][3] = {
229 /* dummy entry for channel 0 */
230 {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
231 {
232 cpu_to_le64(0x0000001FFFULL),
233 cpu_to_le64(0x0ULL),
234 cpu_to_le64(0x00007FFFFFULL),
235 },
236 {
237 cpu_to_le64(0x000000FFFFULL),
238 cpu_to_le64(0x0ULL),
239 cpu_to_le64(0x0003FFFFFFULL),
240 },
241 {
242 cpu_to_le64(0x000003FFFCULL),
243 cpu_to_le64(0x0ULL),
244 cpu_to_le64(0x000FFFFFFCULL),
245 },
246 {
247 cpu_to_le64(0x00001FFFE0ULL),
248 cpu_to_le64(0x0ULL),
249 cpu_to_le64(0x007FFFFFE0ULL),
250 },
251 {
252 cpu_to_le64(0x00007FFF80ULL),
253 cpu_to_le64(0x00007FFFFFULL),
254 cpu_to_le64(0x01FFFFFF80ULL),
255 },
256 {
257 cpu_to_le64(0x0003FFFC00ULL),
258 cpu_to_le64(0x0003FFFFFFULL),
259 cpu_to_le64(0x0FFFFFFC00ULL),
260 },
261 {
262 cpu_to_le64(0x000FFFF000ULL),
263 cpu_to_le64(0x000FFFFFFCULL),
264 cpu_to_le64(0x3FFFFFF000ULL),
265 },
266 {
267 cpu_to_le64(0x007FFF8000ULL),
268 cpu_to_le64(0x007FFFFFE0ULL),
269 cpu_to_le64(0xFFFFFF8000ULL),
270 },
271 {
272 cpu_to_le64(0x01FFFE0000ULL),
273 cpu_to_le64(0x01FFFFFF80ULL),
274 cpu_to_le64(0xFFFFFE0000ULL),
275 },
276 {
277 cpu_to_le64(0x0FFFF00000ULL),
278 cpu_to_le64(0x0FFFFFFC00ULL),
279 cpu_to_le64(0x0ULL),
280 },
281 {
282 cpu_to_le64(0x3FFFC00000ULL),
283 cpu_to_le64(0x3FFFFFF000ULL),
284 cpu_to_le64(0x0)
285 },
286 {
287 cpu_to_le64(0xFFFE000000ULL),
288 cpu_to_le64(0xFFFFFF8000ULL),
289 cpu_to_le64(0x0)
290 },
291 {
292 cpu_to_le64(0xFFF8000000ULL),
293 cpu_to_le64(0xFFFFFE0000ULL),
294 cpu_to_le64(0x0)
295 },
296 {
297 cpu_to_le64(0xFFC0000000ULL),
298 cpu_to_le64(0x0ULL),
299 cpu_to_le64(0x0ULL)
300 },
301 };
302
303 static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = {
304 cpu_to_le32(0x28412201),
305 cpu_to_le32(0x11118451),
306 };
307
308 struct corunning_block_luts {
309 u8 range;
310 __le32 lut20[BT_COEX_CORUN_LUT_SIZE];
311 };
312
313 /*
314 * Ranges for the antenna coupling calibration / co-running block LUT:
315 * LUT0: [ 0, 12[
316 * LUT1: [12, 20[
317 * LUT2: [20, 21[
318 * LUT3: [21, 23[
319 * LUT4: [23, 27[
320 * LUT5: [27, 30[
321 * LUT6: [30, 32[
322 * LUT7: [32, 33[
323 * LUT8: [33, - [
324 */
325 static const struct corunning_block_luts antenna_coupling_ranges[] = {
326 {
327 .range = 0,
328 .lut20 = {
329 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
330 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
331 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
332 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
333 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
334 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
335 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
336 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
337 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
338 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
339 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
340 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
341 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
342 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
343 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
344 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
345 },
346 },
347 {
348 .range = 12,
349 .lut20 = {
350 cpu_to_le32(0x00000001), cpu_to_le32(0x00000000),
351 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
352 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
353 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
354 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
355 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
356 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
357 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
358 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
359 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
360 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
361 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
362 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
363 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
364 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
365 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
366 },
367 },
368 {
369 .range = 20,
370 .lut20 = {
371 cpu_to_le32(0x00000002), cpu_to_le32(0x00000000),
372 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
373 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
374 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
375 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
376 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
377 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
378 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
379 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
380 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
381 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
382 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
383 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
384 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
385 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
386 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
387 },
388 },
389 {
390 .range = 21,
391 .lut20 = {
392 cpu_to_le32(0x00000003), cpu_to_le32(0x00000000),
393 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
394 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
395 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
396 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
397 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
398 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
399 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
400 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
401 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
402 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
403 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
404 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
405 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
406 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
407 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
408 },
409 },
410 {
411 .range = 23,
412 .lut20 = {
413 cpu_to_le32(0x00000004), cpu_to_le32(0x00000000),
414 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
415 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
416 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
417 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
418 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
419 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
420 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
421 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
422 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
423 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
424 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
425 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
426 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
427 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
428 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
429 },
430 },
431 {
432 .range = 27,
433 .lut20 = {
434 cpu_to_le32(0x00000005), cpu_to_le32(0x00000000),
435 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
436 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
437 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
438 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
439 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
440 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
441 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
442 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
443 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
444 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
445 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
446 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
447 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
448 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
449 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
450 },
451 },
452 {
453 .range = 30,
454 .lut20 = {
455 cpu_to_le32(0x00000006), cpu_to_le32(0x00000000),
456 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
457 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
458 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
459 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
460 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
461 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
462 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
463 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
464 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
465 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
466 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
467 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
468 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
469 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
470 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
471 },
472 },
473 {
474 .range = 32,
475 .lut20 = {
476 cpu_to_le32(0x00000007), cpu_to_le32(0x00000000),
477 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
478 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
479 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
480 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
481 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
482 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
483 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
484 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
485 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
486 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
487 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
488 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
489 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
490 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
491 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
492 },
493 },
494 {
495 .range = 33,
496 .lut20 = {
497 cpu_to_le32(0x00000008), cpu_to_le32(0x00000000),
498 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
499 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
500 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
501 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
502 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
503 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
504 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
505 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
506 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
507 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
508 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
509 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
510 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
511 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
512 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
513 },
514 },
515 };
516
517 static enum iwl_bt_coex_lut_type
518 iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
519 {
520 struct ieee80211_chanctx_conf *chanctx_conf;
521 enum iwl_bt_coex_lut_type ret;
522 u16 phy_ctx_id;
523 u32 primary_ch_phy_id, secondary_ch_phy_id;
524
525 /*
526 * Checking that we hold mvm->mutex is a good idea, but the rate
527 * control can't acquire the mutex since it runs in Tx path.
528 * So this is racy in that case, but in the worst case, the AMPDU
529 * size limit will be wrong for a short time which is not a big
530 * issue.
531 */
532
533 rcu_read_lock();
534
535 chanctx_conf = rcu_dereference(vif->chanctx_conf);
536
537 if (!chanctx_conf ||
538 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
539 rcu_read_unlock();
540 return BT_COEX_INVALID_LUT;
541 }
542
543 ret = BT_COEX_TX_DIS_LUT;
544
545 if (mvm->cfg->bt_shared_single_ant) {
546 rcu_read_unlock();
547 return ret;
548 }
549
550 phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
551 primary_ch_phy_id = le32_to_cpu(mvm->last_bt_ci_cmd.primary_ch_phy_id);
552 secondary_ch_phy_id =
553 le32_to_cpu(mvm->last_bt_ci_cmd.secondary_ch_phy_id);
554
555 if (primary_ch_phy_id == phy_ctx_id)
556 ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut);
557 else if (secondary_ch_phy_id == phy_ctx_id)
558 ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut);
559 /* else - default = TX TX disallowed */
560
561 rcu_read_unlock();
562
563 return ret;
564 }
565
566 int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
567 {
568 struct iwl_bt_coex_cmd *bt_cmd;
569 struct iwl_host_cmd cmd = {
570 .id = BT_CONFIG,
571 .len = { sizeof(*bt_cmd), },
572 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
573 };
574 int ret;
575 u32 mode;
576
577 if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
578 return iwl_send_bt_init_conf_old(mvm);
579
580 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
581 if (!bt_cmd)
582 return -ENOMEM;
583 cmd.data[0] = bt_cmd;
584
585 lockdep_assert_held(&mvm->mutex);
586
587 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) {
588 switch (mvm->bt_force_ant_mode) {
589 case BT_FORCE_ANT_BT:
590 mode = BT_COEX_BT;
591 break;
592 case BT_FORCE_ANT_WIFI:
593 mode = BT_COEX_WIFI;
594 break;
595 default:
596 WARN_ON(1);
597 mode = 0;
598 }
599
600 bt_cmd->mode = cpu_to_le32(mode);
601 goto send_cmd;
602 }
603
604 bt_cmd->max_kill = cpu_to_le32(5);
605 bt_cmd->bt4_antenna_isolation_thr =
606 cpu_to_le32(BT_ANTENNA_COUPLING_THRESHOLD);
607 bt_cmd->bt4_tx_tx_delta_freq_thr = cpu_to_le32(15);
608 bt_cmd->bt4_tx_rx_max_freq0 = cpu_to_le32(15);
609 bt_cmd->override_primary_lut = cpu_to_le32(BT_COEX_INVALID_LUT);
610 bt_cmd->override_secondary_lut = cpu_to_le32(BT_COEX_INVALID_LUT);
611
612 mode = iwlwifi_mod_params.bt_coex_active ? BT_COEX_NW : BT_COEX_DISABLE;
613 bt_cmd->mode = cpu_to_le32(mode);
614
615 if (IWL_MVM_BT_COEX_SYNC2SCO)
616 bt_cmd->enabled_modules |=
617 cpu_to_le32(BT_COEX_SYNC2SCO_ENABLED);
618
619 if (IWL_MVM_BT_COEX_CORUNNING)
620 bt_cmd->enabled_modules |= cpu_to_le32(BT_COEX_CORUN_ENABLED);
621
622 if (IWL_MVM_BT_COEX_MPLUT) {
623 bt_cmd->enabled_modules |= cpu_to_le32(BT_COEX_MPLUT_ENABLED);
624 bt_cmd->enabled_modules |=
625 cpu_to_le32(BT_COEX_MPLUT_BOOST_ENABLED);
626 }
627
628 bt_cmd->enabled_modules |= cpu_to_le32(BT_COEX_HIGH_BAND_RET);
629
630 if (mvm->cfg->bt_shared_single_ant)
631 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant,
632 sizeof(iwl_single_shared_ant));
633 else
634 memcpy(&bt_cmd->decision_lut, iwl_combined_lookup,
635 sizeof(iwl_combined_lookup));
636
637 memcpy(&bt_cmd->mplut_prio_boost, iwl_bt_prio_boost,
638 sizeof(iwl_bt_prio_boost));
639 memcpy(&bt_cmd->multiprio_lut, iwl_bt_mprio_lut,
640 sizeof(iwl_bt_mprio_lut));
641
642 send_cmd:
643 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
644 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
645
646 ret = iwl_mvm_send_cmd(mvm, &cmd);
647
648 kfree(bt_cmd);
649 return ret;
650 }
651
652 static int iwl_mvm_bt_udpate_sw_boost(struct iwl_mvm *mvm)
653 {
654 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
655 u32 primary_lut = le32_to_cpu(notif->primary_ch_lut);
656 u32 secondary_lut = le32_to_cpu(notif->secondary_ch_lut);
657 u32 ag = le32_to_cpu(notif->bt_activity_grading);
658 struct iwl_bt_coex_sw_boost_update_cmd cmd = {};
659 u8 ack_kill_msk[NUM_PHY_CTX] = {};
660 u8 cts_kill_msk[NUM_PHY_CTX] = {};
661 int i;
662
663 lockdep_assert_held(&mvm->mutex);
664
665 ack_kill_msk[0] = iwl_bt_ack_kill_msk[ag][primary_lut];
666 cts_kill_msk[0] = iwl_bt_cts_kill_msk[ag][primary_lut];
667
668 ack_kill_msk[1] = iwl_bt_ack_kill_msk[ag][secondary_lut];
669 cts_kill_msk[1] = iwl_bt_cts_kill_msk[ag][secondary_lut];
670
671 /* Don't send HCMD if there is no update */
672 if (!memcmp(ack_kill_msk, mvm->bt_ack_kill_msk, sizeof(ack_kill_msk)) ||
673 !memcmp(cts_kill_msk, mvm->bt_cts_kill_msk, sizeof(cts_kill_msk)))
674 return 0;
675
676 memcpy(mvm->bt_ack_kill_msk, ack_kill_msk,
677 sizeof(mvm->bt_ack_kill_msk));
678 memcpy(mvm->bt_cts_kill_msk, cts_kill_msk,
679 sizeof(mvm->bt_cts_kill_msk));
680
681 BUILD_BUG_ON(ARRAY_SIZE(ack_kill_msk) < ARRAY_SIZE(cmd.boost_values));
682
683 for (i = 0; i < ARRAY_SIZE(cmd.boost_values); i++) {
684 cmd.boost_values[i].kill_ack_msk =
685 cpu_to_le32(iwl_bt_ctl_kill_msk[ack_kill_msk[i]]);
686 cmd.boost_values[i].kill_cts_msk =
687 cpu_to_le32(iwl_bt_ctl_kill_msk[cts_kill_msk[i]]);
688 }
689
690 return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_SW_BOOST, 0,
691 sizeof(cmd), &cmd);
692 }
693
694 static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
695 bool enable)
696 {
697 struct iwl_bt_coex_reduced_txp_update_cmd cmd = {};
698 struct iwl_mvm_sta *mvmsta;
699 u32 value;
700 int ret;
701
702 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
703 if (!mvmsta)
704 return 0;
705
706 /* nothing to do */
707 if (mvmsta->bt_reduced_txpower == enable)
708 return 0;
709
710 value = mvmsta->sta_id;
711
712 if (enable)
713 value |= BT_REDUCED_TX_POWER_BIT;
714
715 IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
716 enable ? "en" : "dis", sta_id);
717
718 cmd.reduced_txp = cpu_to_le32(value);
719 mvmsta->bt_reduced_txpower = enable;
720
721 ret = iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_REDUCED_TXP, CMD_ASYNC,
722 sizeof(cmd), &cmd);
723
724 return ret;
725 }
726
727 struct iwl_bt_iterator_data {
728 struct iwl_bt_coex_profile_notif *notif;
729 struct iwl_mvm *mvm;
730 struct ieee80211_chanctx_conf *primary;
731 struct ieee80211_chanctx_conf *secondary;
732 bool primary_ll;
733 };
734
735 static inline
736 void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
737 struct ieee80211_vif *vif,
738 bool enable, int rssi)
739 {
740 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
741
742 mvmvif->bf_data.last_bt_coex_event = rssi;
743 mvmvif->bf_data.bt_coex_max_thold =
744 enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0;
745 mvmvif->bf_data.bt_coex_min_thold =
746 enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0;
747 }
748
749 /* must be called under rcu_read_lock */
750 static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
751 struct ieee80211_vif *vif)
752 {
753 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
754 struct iwl_bt_iterator_data *data = _data;
755 struct iwl_mvm *mvm = data->mvm;
756 struct ieee80211_chanctx_conf *chanctx_conf;
757 enum ieee80211_smps_mode smps_mode;
758 u32 bt_activity_grading;
759 int ave_rssi;
760
761 lockdep_assert_held(&mvm->mutex);
762
763 switch (vif->type) {
764 case NL80211_IFTYPE_STATION:
765 /* default smps_mode for BSS / P2P client is AUTOMATIC */
766 smps_mode = IEEE80211_SMPS_AUTOMATIC;
767 break;
768 case NL80211_IFTYPE_AP:
769 if (!mvmvif->ap_ibss_active)
770 return;
771 break;
772 default:
773 return;
774 }
775
776 chanctx_conf = rcu_dereference(vif->chanctx_conf);
777
778 /* If channel context is invalid or not on 2.4GHz .. */
779 if ((!chanctx_conf ||
780 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) {
781 if (vif->type == NL80211_IFTYPE_STATION) {
782 /* ... relax constraints and disable rssi events */
783 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
784 smps_mode);
785 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
786 false);
787 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
788 }
789 return;
790 }
791
792 bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
793 if (bt_activity_grading >= BT_HIGH_TRAFFIC)
794 smps_mode = IEEE80211_SMPS_STATIC;
795 else if (bt_activity_grading >= BT_LOW_TRAFFIC)
796 smps_mode = IEEE80211_SMPS_DYNAMIC;
797
798 /* relax SMPS contraints for next association */
799 if (!vif->bss_conf.assoc)
800 smps_mode = IEEE80211_SMPS_AUTOMATIC;
801
802 if (IWL_COEX_IS_RRC_ON(mvm->last_bt_notif.ttc_rrc_status,
803 mvmvif->phy_ctxt->id))
804 smps_mode = IEEE80211_SMPS_AUTOMATIC;
805
806 IWL_DEBUG_COEX(data->mvm,
807 "mac %d: bt_activity_grading %d smps_req %d\n",
808 mvmvif->id, bt_activity_grading, smps_mode);
809
810 if (vif->type == NL80211_IFTYPE_STATION)
811 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
812 smps_mode);
813
814 /* low latency is always primary */
815 if (iwl_mvm_vif_low_latency(mvmvif)) {
816 data->primary_ll = true;
817
818 data->secondary = data->primary;
819 data->primary = chanctx_conf;
820 }
821
822 if (vif->type == NL80211_IFTYPE_AP) {
823 if (!mvmvif->ap_ibss_active)
824 return;
825
826 if (chanctx_conf == data->primary)
827 return;
828
829 if (!data->primary_ll) {
830 /*
831 * downgrade the current primary no matter what its
832 * type is.
833 */
834 data->secondary = data->primary;
835 data->primary = chanctx_conf;
836 } else {
837 /* there is low latency vif - we will be secondary */
838 data->secondary = chanctx_conf;
839 }
840 return;
841 }
842
843 /*
844 * STA / P2P Client, try to be primary if first vif. If we are in low
845 * latency mode, we are already in primary and just don't do much
846 */
847 if (!data->primary || data->primary == chanctx_conf)
848 data->primary = chanctx_conf;
849 else if (!data->secondary)
850 /* if secondary is not NULL, it might be a GO */
851 data->secondary = chanctx_conf;
852
853 /*
854 * don't reduce the Tx power if one of these is true:
855 * we are in LOOSE
856 * single share antenna product
857 * BT is active
858 * we are associated
859 */
860 if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
861 mvm->cfg->bt_shared_single_ant || !vif->bss_conf.assoc ||
862 le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF) {
863 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false);
864 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
865 return;
866 }
867
868 /* try to get the avg rssi from fw */
869 ave_rssi = mvmvif->bf_data.ave_beacon_signal;
870
871 /* if the RSSI isn't valid, fake it is very low */
872 if (!ave_rssi)
873 ave_rssi = -100;
874 if (ave_rssi > -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH) {
875 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true))
876 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
877 } else if (ave_rssi < -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH) {
878 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
879 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
880 }
881
882 /* Begin to monitor the RSSI: it may influence the reduced Tx power */
883 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
884 }
885
886 static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
887 {
888 struct iwl_bt_iterator_data data = {
889 .mvm = mvm,
890 .notif = &mvm->last_bt_notif,
891 };
892 struct iwl_bt_coex_ci_cmd cmd = {};
893 u8 ci_bw_idx;
894
895 /* Ignore updates if we are in force mode */
896 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
897 return;
898
899 rcu_read_lock();
900 ieee80211_iterate_active_interfaces_atomic(
901 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
902 iwl_mvm_bt_notif_iterator, &data);
903
904 if (data.primary) {
905 struct ieee80211_chanctx_conf *chan = data.primary;
906 if (WARN_ON(!chan->def.chan)) {
907 rcu_read_unlock();
908 return;
909 }
910
911 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
912 ci_bw_idx = 0;
913 } else {
914 if (chan->def.center_freq1 >
915 chan->def.chan->center_freq)
916 ci_bw_idx = 2;
917 else
918 ci_bw_idx = 1;
919 }
920
921 cmd.bt_primary_ci =
922 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
923 cmd.primary_ch_phy_id =
924 cpu_to_le32(*((u16 *)data.primary->drv_priv));
925 }
926
927 if (data.secondary) {
928 struct ieee80211_chanctx_conf *chan = data.secondary;
929 if (WARN_ON(!data.secondary->def.chan)) {
930 rcu_read_unlock();
931 return;
932 }
933
934 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
935 ci_bw_idx = 0;
936 } else {
937 if (chan->def.center_freq1 >
938 chan->def.chan->center_freq)
939 ci_bw_idx = 2;
940 else
941 ci_bw_idx = 1;
942 }
943
944 cmd.bt_secondary_ci =
945 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
946 cmd.secondary_ch_phy_id =
947 cpu_to_le32(*((u16 *)data.secondary->drv_priv));
948 }
949
950 rcu_read_unlock();
951
952 /* Don't spam the fw with the same command over and over */
953 if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) {
954 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0,
955 sizeof(cmd), &cmd))
956 IWL_ERR(mvm, "Failed to send BT_CI cmd\n");
957 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd));
958 }
959
960 if (iwl_mvm_bt_udpate_sw_boost(mvm))
961 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
962 }
963
964 int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
965 struct iwl_rx_cmd_buffer *rxb,
966 struct iwl_device_cmd *dev_cmd)
967 {
968 struct iwl_rx_packet *pkt = rxb_addr(rxb);
969 struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data;
970
971 if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
972 return iwl_mvm_rx_bt_coex_notif_old(mvm, rxb, dev_cmd);
973
974 IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
975 IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
976 IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
977 le32_to_cpu(notif->primary_ch_lut));
978 IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
979 le32_to_cpu(notif->secondary_ch_lut));
980 IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
981 le32_to_cpu(notif->bt_activity_grading));
982
983 /* remember this notification for future use: rssi fluctuations */
984 memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif));
985
986 iwl_mvm_bt_coex_notif_handle(mvm);
987
988 /*
989 * This is an async handler for a notification, returning anything other
990 * than 0 doesn't make sense even if HCMD failed.
991 */
992 return 0;
993 }
994
995 static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
996 struct ieee80211_vif *vif)
997 {
998 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
999 struct iwl_bt_iterator_data *data = _data;
1000 struct iwl_mvm *mvm = data->mvm;
1001
1002 struct ieee80211_sta *sta;
1003 struct iwl_mvm_sta *mvmsta;
1004
1005 struct ieee80211_chanctx_conf *chanctx_conf;
1006
1007 rcu_read_lock();
1008 chanctx_conf = rcu_dereference(vif->chanctx_conf);
1009 /* If channel context is invalid or not on 2.4GHz - don't count it */
1010 if (!chanctx_conf ||
1011 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
1012 rcu_read_unlock();
1013 return;
1014 }
1015 rcu_read_unlock();
1016
1017 if (vif->type != NL80211_IFTYPE_STATION ||
1018 mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1019 return;
1020
1021 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1022 lockdep_is_held(&mvm->mutex));
1023
1024 /* This can happen if the station has been removed right now */
1025 if (IS_ERR_OR_NULL(sta))
1026 return;
1027
1028 mvmsta = iwl_mvm_sta_from_mac80211(sta);
1029 }
1030
1031 void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1032 enum ieee80211_rssi_event rssi_event)
1033 {
1034 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1035 struct iwl_bt_iterator_data data = {
1036 .mvm = mvm,
1037 };
1038 int ret;
1039
1040 if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
1041 iwl_mvm_bt_rssi_event_old(mvm, vif, rssi_event);
1042 return;
1043 }
1044
1045 lockdep_assert_held(&mvm->mutex);
1046
1047 /* Ignore updates if we are in force mode */
1048 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1049 return;
1050
1051 /*
1052 * Rssi update while not associated - can happen since the statistics
1053 * are handled asynchronously
1054 */
1055 if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1056 return;
1057
1058 /* No BT - reports should be disabled */
1059 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF)
1060 return;
1061
1062 IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
1063 rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
1064
1065 /*
1066 * Check if rssi is good enough for reduced Tx power, but not in loose
1067 * scheme.
1068 */
1069 if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
1070 iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
1071 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
1072 false);
1073 else
1074 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true);
1075
1076 if (ret)
1077 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
1078
1079 ieee80211_iterate_active_interfaces_atomic(
1080 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1081 iwl_mvm_bt_rssi_iterator, &data);
1082
1083 if (iwl_mvm_bt_udpate_sw_boost(mvm))
1084 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
1085 }
1086
1087 #define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000)
1088 #define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
1089
1090 u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm,
1091 struct ieee80211_sta *sta)
1092 {
1093 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1094 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
1095 struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->phy_ctxt;
1096 enum iwl_bt_coex_lut_type lut_type;
1097
1098 if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
1099 return iwl_mvm_coex_agg_time_limit_old(mvm, sta);
1100
1101 if (IWL_COEX_IS_TTC_ON(mvm->last_bt_notif.ttc_rrc_status, phy_ctxt->id))
1102 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1103
1104 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
1105 BT_HIGH_TRAFFIC)
1106 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1107
1108 lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1109
1110 if (lut_type == BT_COEX_LOOSE_LUT || lut_type == BT_COEX_INVALID_LUT)
1111 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1112
1113 /* tight coex, high bt traffic, reduce AGG time limit */
1114 return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
1115 }
1116
1117 bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
1118 struct ieee80211_sta *sta)
1119 {
1120 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1121 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
1122 struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->phy_ctxt;
1123 enum iwl_bt_coex_lut_type lut_type;
1124
1125 if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
1126 return iwl_mvm_bt_coex_is_mimo_allowed_old(mvm, sta);
1127
1128 if (IWL_COEX_IS_TTC_ON(mvm->last_bt_notif.ttc_rrc_status, phy_ctxt->id))
1129 return true;
1130
1131 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
1132 BT_HIGH_TRAFFIC)
1133 return true;
1134
1135 /*
1136 * In Tight / TxTxDis, BT can't Rx while we Tx, so use both antennas
1137 * since BT is already killed.
1138 * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while
1139 * we Tx.
1140 * When we are in 5GHz, we'll get BT_COEX_INVALID_LUT allowing MIMO.
1141 */
1142 lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1143 return lut_type != BT_COEX_LOOSE_LUT;
1144 }
1145
1146 bool iwl_mvm_bt_coex_is_shared_ant_avail(struct iwl_mvm *mvm)
1147 {
1148 if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
1149 return iwl_mvm_bt_coex_is_shared_ant_avail_old(mvm);
1150
1151 return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF;
1152 }
1153
1154 bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm,
1155 enum ieee80211_band band)
1156 {
1157 u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading);
1158
1159 if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
1160 return iwl_mvm_bt_coex_is_tpc_allowed_old(mvm, band);
1161
1162 if (band != IEEE80211_BAND_2GHZ)
1163 return false;
1164
1165 return bt_activity >= BT_LOW_TRAFFIC;
1166 }
1167
1168 u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
1169 struct ieee80211_tx_info *info, u8 ac)
1170 {
1171 __le16 fc = hdr->frame_control;
1172
1173 if (info->band != IEEE80211_BAND_2GHZ)
1174 return 0;
1175
1176 if (unlikely(mvm->bt_tx_prio))
1177 return mvm->bt_tx_prio - 1;
1178
1179 /* High prio packet (wrt. BT coex) if it is EAPOL, MCAST or MGMT */
1180 if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO ||
1181 is_multicast_ether_addr(hdr->addr1) ||
1182 ieee80211_is_ctl(fc) || ieee80211_is_mgmt(fc) ||
1183 ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc))
1184 return 3;
1185
1186 switch (ac) {
1187 case IEEE80211_AC_BE:
1188 return 1;
1189 case IEEE80211_AC_VO:
1190 return 3;
1191 case IEEE80211_AC_VI:
1192 return 2;
1193 default:
1194 break;
1195 }
1196
1197 return 0;
1198 }
1199
1200 void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm)
1201 {
1202 if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
1203 iwl_mvm_bt_coex_vif_change_old(mvm);
1204 return;
1205 }
1206
1207 iwl_mvm_bt_coex_notif_handle(mvm);
1208 }
1209
1210 int iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm,
1211 struct iwl_rx_cmd_buffer *rxb,
1212 struct iwl_device_cmd *dev_cmd)
1213 {
1214 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1215 u32 ant_isolation = le32_to_cpup((void *)pkt->data);
1216 struct iwl_bt_coex_corun_lut_update_cmd cmd = {};
1217 u8 __maybe_unused lower_bound, upper_bound;
1218 u8 lut;
1219
1220 if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
1221 return iwl_mvm_rx_ant_coupling_notif_old(mvm, rxb, dev_cmd);
1222
1223 if (!IWL_MVM_BT_COEX_CORUNNING)
1224 return 0;
1225
1226 lockdep_assert_held(&mvm->mutex);
1227
1228 /* Ignore updates if we are in force mode */
1229 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1230 return 0;
1231
1232 if (ant_isolation == mvm->last_ant_isol)
1233 return 0;
1234
1235 for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++)
1236 if (ant_isolation < antenna_coupling_ranges[lut + 1].range)
1237 break;
1238
1239 lower_bound = antenna_coupling_ranges[lut].range;
1240
1241 if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1)
1242 upper_bound = antenna_coupling_ranges[lut + 1].range;
1243 else
1244 upper_bound = antenna_coupling_ranges[lut].range;
1245
1246 IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n",
1247 ant_isolation, lower_bound, upper_bound, lut);
1248
1249 mvm->last_ant_isol = ant_isolation;
1250
1251 if (mvm->last_corun_lut == lut)
1252 return 0;
1253
1254 mvm->last_corun_lut = lut;
1255
1256 /* For the moment, use the same LUT for 20GHz and 40GHz */
1257 memcpy(&cmd.corun_lut20, antenna_coupling_ranges[lut].lut20,
1258 sizeof(cmd.corun_lut20));
1259
1260 memcpy(&cmd.corun_lut40, antenna_coupling_ranges[lut].lut20,
1261 sizeof(cmd.corun_lut40));
1262
1263 return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_CORUN_LUT, 0,
1264 sizeof(cmd), &cmd);
1265 }
(deprecated) Btrfs devel tree