1 /******************************************************************************
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
8 * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * The full GNU General Public License is included in this distribution
25 * in the file called COPYING.
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
33 * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved.
34 * All rights reserved.
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 *****************************************************************************/
64 #include <linux/ieee80211.h>
65 #include <linux/etherdevice.h>
66 #include <net/mac80211.h>
68 #include "fw-api-coex.h"
69 #include "iwl-modparams.h"
71 #include "iwl-debug.h"
73 #define EVENT_PRIO_ANT(_evt, _prio, _shrd_ant) \
74 [(_evt)] = (((_prio) << BT_COEX_PRIO_TBL_PRIO_POS) | \
75 ((_shrd_ant) << BT_COEX_PRIO_TBL_SHRD_ANT_POS))
77 static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
78 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB1,
79 BT_COEX_PRIO_TBL_PRIO_BYPASS, 0),
80 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB2,
81 BT_COEX_PRIO_TBL_PRIO_BYPASS, 1),
82 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW1,
83 BT_COEX_PRIO_TBL_PRIO_LOW, 0),
84 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW2,
85 BT_COEX_PRIO_TBL_PRIO_LOW, 1),
86 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH1,
87 BT_COEX_PRIO_TBL_PRIO_HIGH, 0),
88 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH2,
89 BT_COEX_PRIO_TBL_PRIO_HIGH, 1),
90 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_DTIM,
91 BT_COEX_PRIO_TBL_DISABLED, 0),
92 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN52,
93 BT_COEX_PRIO_TBL_PRIO_COEX_OFF, 0),
94 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN24,
95 BT_COEX_PRIO_TBL_PRIO_COEX_ON, 0),
96 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_IDLE,
97 BT_COEX_PRIO_TBL_PRIO_COEX_IDLE, 0),
101 #undef EVENT_PRIO_ANT
103 #define BT_ENABLE_REDUCED_TXPOWER_THRESHOLD (-62)
104 #define BT_DISABLE_REDUCED_TXPOWER_THRESHOLD (-65)
105 #define BT_ANTENNA_COUPLING_THRESHOLD (30)
107 int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm)
109 return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, CMD_SYNC,
110 sizeof(struct iwl_bt_coex_prio_tbl_cmd),
114 const u32 iwl_bt_ack_kill_msk[BT_KILL_MSK_MAX] = {
115 [BT_KILL_MSK_DEFAULT] = 0xffff0000,
116 [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff,
117 [BT_KILL_MSK_REDUCED_TXPOW] = 0,
120 const u32 iwl_bt_cts_kill_msk[BT_KILL_MSK_MAX] = {
121 [BT_KILL_MSK_DEFAULT] = 0xffff0000,
122 [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff,
123 [BT_KILL_MSK_REDUCED_TXPOW] = 0,
126 static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = {
127 cpu_to_le32(0xf0f0f0f0),
128 cpu_to_le32(0xc0c0c0c0),
129 cpu_to_le32(0xfcfcfcfc),
130 cpu_to_le32(0xff00ff00),
133 static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
135 cpu_to_le32(0x40000000),
136 cpu_to_le32(0x00000000),
137 cpu_to_le32(0x44000000),
138 cpu_to_le32(0x00000000),
139 cpu_to_le32(0x40000000),
140 cpu_to_le32(0x00000000),
141 cpu_to_le32(0x44000000),
142 cpu_to_le32(0x00000000),
143 cpu_to_le32(0xc0004000),
144 cpu_to_le32(0xf0005000),
145 cpu_to_le32(0xc0004000),
146 cpu_to_le32(0xf0005000),
149 cpu_to_le32(0x40000000),
150 cpu_to_le32(0x00000000),
151 cpu_to_le32(0x44000000),
152 cpu_to_le32(0x00000000),
153 cpu_to_le32(0x40000000),
154 cpu_to_le32(0x00000000),
155 cpu_to_le32(0x44000000),
156 cpu_to_le32(0x00000000),
157 cpu_to_le32(0xc0004000),
158 cpu_to_le32(0xf0005000),
159 cpu_to_le32(0xc0004000),
160 cpu_to_le32(0xf0005000),
163 cpu_to_le32(0x40000000),
164 cpu_to_le32(0x00000000),
165 cpu_to_le32(0x44000000),
166 cpu_to_le32(0x00000000),
167 cpu_to_le32(0x40000000),
168 cpu_to_le32(0x00000000),
169 cpu_to_le32(0x44000000),
170 cpu_to_le32(0x00000000),
171 cpu_to_le32(0xc0004000),
172 cpu_to_le32(0xf0005000),
173 cpu_to_le32(0xc0004000),
174 cpu_to_le32(0xf0005000),
178 static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
181 cpu_to_le32(0xaaaaaaaa),
182 cpu_to_le32(0xaaaaaaaa),
183 cpu_to_le32(0xaeaaaaaa),
184 cpu_to_le32(0xaaaaaaaa),
185 cpu_to_le32(0xcc00ff28),
186 cpu_to_le32(0x0000aaaa),
187 cpu_to_le32(0xcc00aaaa),
188 cpu_to_le32(0x0000aaaa),
189 cpu_to_le32(0xc0004000),
190 cpu_to_le32(0x00000000),
191 cpu_to_le32(0xf0005000),
192 cpu_to_le32(0xf0005000),
196 cpu_to_le32(0xaaaaaaaa),
197 cpu_to_le32(0xaaaaaaaa),
198 cpu_to_le32(0xaaaaaaaa),
199 cpu_to_le32(0xaaaaaaaa),
200 cpu_to_le32(0xcc00ff28),
201 cpu_to_le32(0x0000aaaa),
202 cpu_to_le32(0xcc00aaaa),
203 cpu_to_le32(0x0000aaaa),
204 cpu_to_le32(0x00000000),
205 cpu_to_le32(0x00000000),
206 cpu_to_le32(0xf0005000),
207 cpu_to_le32(0xf0005000),
211 cpu_to_le32(0xaaaaaaaa),
212 cpu_to_le32(0xaaaaaaaa),
213 cpu_to_le32(0xaaaaaaaa),
214 cpu_to_le32(0xaaaaaaaa),
215 cpu_to_le32(0xcc00ff28),
216 cpu_to_le32(0x0000aaaa),
217 cpu_to_le32(0xcc00aaaa),
218 cpu_to_le32(0x0000aaaa),
219 cpu_to_le32(0xC0004000),
220 cpu_to_le32(0xC0004000),
221 cpu_to_le32(0xF0005000),
222 cpu_to_le32(0xF0005000),
226 /* 20MHz / 40MHz below / 40Mhz above*/
227 static const __le64 iwl_ci_mask[][3] = {
228 /* dummy entry for channel 0 */
229 {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
231 cpu_to_le64(0x0000001FFFULL),
233 cpu_to_le64(0x00007FFFFFULL),
236 cpu_to_le64(0x000000FFFFULL),
238 cpu_to_le64(0x0003FFFFFFULL),
241 cpu_to_le64(0x000003FFFCULL),
243 cpu_to_le64(0x000FFFFFFCULL),
246 cpu_to_le64(0x00001FFFE0ULL),
248 cpu_to_le64(0x007FFFFFE0ULL),
251 cpu_to_le64(0x00007FFF80ULL),
252 cpu_to_le64(0x00007FFFFFULL),
253 cpu_to_le64(0x01FFFFFF80ULL),
256 cpu_to_le64(0x0003FFFC00ULL),
257 cpu_to_le64(0x0003FFFFFFULL),
258 cpu_to_le64(0x0FFFFFFC00ULL),
261 cpu_to_le64(0x000FFFF000ULL),
262 cpu_to_le64(0x000FFFFFFCULL),
263 cpu_to_le64(0x3FFFFFF000ULL),
266 cpu_to_le64(0x007FFF8000ULL),
267 cpu_to_le64(0x007FFFFFE0ULL),
268 cpu_to_le64(0xFFFFFF8000ULL),
271 cpu_to_le64(0x01FFFE0000ULL),
272 cpu_to_le64(0x01FFFFFF80ULL),
273 cpu_to_le64(0xFFFFFE0000ULL),
276 cpu_to_le64(0x0FFFF00000ULL),
277 cpu_to_le64(0x0FFFFFFC00ULL),
281 cpu_to_le64(0x3FFFC00000ULL),
282 cpu_to_le64(0x3FFFFFF000ULL),
286 cpu_to_le64(0xFFFE000000ULL),
287 cpu_to_le64(0xFFFFFF8000ULL),
291 cpu_to_le64(0xFFF8000000ULL),
292 cpu_to_le64(0xFFFFFE0000ULL),
296 cpu_to_le64(0xFFC0000000ULL),
302 static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = {
303 cpu_to_le32(0x22002200),
304 cpu_to_le32(0x33113311),
307 struct corunning_block_luts {
309 __le32 lut20[BT_COEX_CORUN_LUT_SIZE];
313 * Ranges for the antenna coupling calibration / co-running block LUT:
324 static const struct corunning_block_luts antenna_coupling_ranges[] = {
328 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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),
349 cpu_to_le32(0x00000001), cpu_to_le32(0x00000000),
350 cpu_to_le32(0x00000000), 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),
370 cpu_to_le32(0x00000002), cpu_to_le32(0x00000000),
371 cpu_to_le32(0x00000000), 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),
391 cpu_to_le32(0x00000003), cpu_to_le32(0x00000000),
392 cpu_to_le32(0x00000000), 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),
412 cpu_to_le32(0x00000004), cpu_to_le32(0x00000000),
413 cpu_to_le32(0x00000000), 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),
433 cpu_to_le32(0x00000005), cpu_to_le32(0x00000000),
434 cpu_to_le32(0x00000000), 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),
454 cpu_to_le32(0x00000006), cpu_to_le32(0x00000000),
455 cpu_to_le32(0x00000000), 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),
475 cpu_to_le32(0x00000007), cpu_to_le32(0x00000000),
476 cpu_to_le32(0x00000000), 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),
496 cpu_to_le32(0x00000008), cpu_to_le32(0x00000000),
497 cpu_to_le32(0x00000000), 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),
516 static enum iwl_bt_coex_lut_type
517 iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
519 struct ieee80211_chanctx_conf *chanctx_conf;
520 enum iwl_bt_coex_lut_type ret;
524 * Checking that we hold mvm->mutex is a good idea, but the rate
525 * control can't acquire the mutex since it runs in Tx path.
526 * So this is racy in that case, but in the worst case, the AMPDU
527 * size limit will be wrong for a short time which is not a big
533 chanctx_conf = rcu_dereference(vif->chanctx_conf);
536 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
538 return BT_COEX_LOOSE_LUT;
541 ret = BT_COEX_TX_DIS_LUT;
543 if (mvm->cfg->bt_shared_single_ant) {
548 phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
550 if (mvm->last_bt_ci_cmd.primary_ch_phy_id == phy_ctx_id)
551 ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut);
552 else if (mvm->last_bt_ci_cmd.secondary_ch_phy_id == phy_ctx_id)
553 ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut);
554 /* else - default = TX TX disallowed */
561 int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
563 struct iwl_bt_coex_cmd *bt_cmd;
564 struct iwl_host_cmd cmd = {
566 .len = { sizeof(*bt_cmd), },
567 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
573 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
576 cmd.data[0] = bt_cmd;
578 bt_cmd->max_kill = 5;
579 bt_cmd->bt4_antenna_isolation_thr = BT_ANTENNA_COUPLING_THRESHOLD;
580 bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling;
581 bt_cmd->bt4_tx_tx_delta_freq_thr = 15;
582 bt_cmd->bt4_tx_rx_max_freq0 = 15;
584 flags = iwlwifi_mod_params.bt_coex_active ?
585 BT_COEX_NW : BT_COEX_DISABLE;
586 bt_cmd->flags = cpu_to_le32(flags);
588 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE |
589 BT_VALID_BT_PRIO_BOOST |
594 BT_VALID_REDUCED_TX_POWER |
596 BT_VALID_WIFI_RX_SW_PRIO_BOOST |
597 BT_VALID_WIFI_TX_SW_PRIO_BOOST |
598 BT_VALID_ANT_ISOLATION |
599 BT_VALID_ANT_ISOLATION_THRS |
600 BT_VALID_TXTX_DELTA_FREQ_THRS |
601 BT_VALID_TXRX_MAX_FREQ_0 |
602 BT_VALID_SYNC_TO_SCO);
604 if (IWL_MVM_BT_COEX_SYNC2SCO)
605 bt_cmd->flags |= cpu_to_le32(BT_COEX_SYNC2SCO);
607 if (IWL_MVM_BT_COEX_CORUNNING) {
608 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_CORUN_LUT_20 |
609 BT_VALID_CORUN_LUT_40);
610 bt_cmd->flags |= cpu_to_le32(BT_COEX_CORUNNING);
613 if (IWL_MVM_BT_COEX_MPLUT) {
614 bt_cmd->flags |= cpu_to_le32(BT_COEX_MPLUT);
615 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_MULTI_PRIO_LUT);
618 if (mvm->cfg->bt_shared_single_ant)
619 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant,
620 sizeof(iwl_single_shared_ant));
622 memcpy(&bt_cmd->decision_lut, iwl_combined_lookup,
623 sizeof(iwl_combined_lookup));
625 /* Take first Co-running block LUT to get started */
626 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[0].lut20,
627 sizeof(bt_cmd->bt4_corun_lut20));
628 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[0].lut20,
629 sizeof(bt_cmd->bt4_corun_lut40));
631 memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost,
632 sizeof(iwl_bt_prio_boost));
633 memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut,
634 sizeof(iwl_bt_mprio_lut));
635 bt_cmd->kill_ack_msk =
636 cpu_to_le32(iwl_bt_ack_kill_msk[BT_KILL_MSK_DEFAULT]);
637 bt_cmd->kill_cts_msk =
638 cpu_to_le32(iwl_bt_cts_kill_msk[BT_KILL_MSK_DEFAULT]);
640 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
641 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
643 ret = iwl_mvm_send_cmd(mvm, &cmd);
649 static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm,
650 bool reduced_tx_power)
652 enum iwl_bt_kill_msk bt_kill_msk;
653 struct iwl_bt_coex_cmd *bt_cmd;
654 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
655 struct iwl_host_cmd cmd = {
658 .len = { sizeof(*bt_cmd), },
659 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
664 lockdep_assert_held(&mvm->mutex);
666 if (reduced_tx_power) {
667 /* Reduced Tx power has precedence on the type of the profile */
668 bt_kill_msk = BT_KILL_MSK_REDUCED_TXPOW;
670 /* Low latency BT profile is active: give higher prio to BT */
671 if (BT_MBOX_MSG(notif, 3, SCO_STATE) ||
672 BT_MBOX_MSG(notif, 3, A2DP_STATE) ||
673 BT_MBOX_MSG(notif, 3, SNIFF_STATE))
674 bt_kill_msk = BT_KILL_MSK_SCO_HID_A2DP;
676 bt_kill_msk = BT_KILL_MSK_DEFAULT;
680 "Update kill_msk: %d - SCO %sactive A2DP %sactive SNIFF %sactive\n",
682 BT_MBOX_MSG(notif, 3, SCO_STATE) ? "" : "in",
683 BT_MBOX_MSG(notif, 3, A2DP_STATE) ? "" : "in",
684 BT_MBOX_MSG(notif, 3, SNIFF_STATE) ? "" : "in");
686 /* Don't send HCMD if there is no update */
687 if (bt_kill_msk == mvm->bt_kill_msk)
690 mvm->bt_kill_msk = bt_kill_msk;
692 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
695 cmd.data[0] = bt_cmd;
696 bt_cmd->flags = cpu_to_le32(BT_COEX_NW);
698 bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ack_kill_msk[bt_kill_msk]);
699 bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_cts_kill_msk[bt_kill_msk]);
700 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
704 IWL_DEBUG_COEX(mvm, "ACK Kill msk = 0x%08x, CTS Kill msk = 0x%08x\n",
705 iwl_bt_ack_kill_msk[bt_kill_msk],
706 iwl_bt_cts_kill_msk[bt_kill_msk]);
708 ret = iwl_mvm_send_cmd(mvm, &cmd);
714 int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id, bool enable)
716 struct iwl_bt_coex_cmd *bt_cmd;
717 /* Send ASYNC since this can be sent from an atomic context */
718 struct iwl_host_cmd cmd = {
720 .len = { sizeof(*bt_cmd), },
721 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
724 struct iwl_mvm_sta *mvmsta;
727 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
732 if (mvmsta->bt_reduced_txpower_dbg ||
733 mvmsta->bt_reduced_txpower == enable)
736 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC);
739 cmd.data[0] = bt_cmd;
740 bt_cmd->flags = cpu_to_le32(BT_COEX_NW);
742 bt_cmd->valid_bit_msk =
743 cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER);
744 bt_cmd->bt_reduced_tx_power = sta_id;
747 bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT;
749 IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
750 enable ? "en" : "dis", sta_id);
752 mvmsta->bt_reduced_txpower = enable;
754 ret = iwl_mvm_send_cmd(mvm, &cmd);
760 struct iwl_bt_iterator_data {
761 struct iwl_bt_coex_profile_notif *notif;
764 bool reduced_tx_power;
765 struct ieee80211_chanctx_conf *primary;
766 struct ieee80211_chanctx_conf *secondary;
771 void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
772 struct ieee80211_vif *vif,
773 bool enable, int rssi)
775 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
777 mvmvif->bf_data.last_bt_coex_event = rssi;
778 mvmvif->bf_data.bt_coex_max_thold =
779 enable ? BT_ENABLE_REDUCED_TXPOWER_THRESHOLD : 0;
780 mvmvif->bf_data.bt_coex_min_thold =
781 enable ? BT_DISABLE_REDUCED_TXPOWER_THRESHOLD : 0;
784 /* must be called under rcu_read_lock */
785 static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
786 struct ieee80211_vif *vif)
788 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
789 struct iwl_bt_iterator_data *data = _data;
790 struct iwl_mvm *mvm = data->mvm;
791 struct ieee80211_chanctx_conf *chanctx_conf;
792 enum ieee80211_smps_mode smps_mode;
793 u32 bt_activity_grading;
796 lockdep_assert_held(&mvm->mutex);
799 case NL80211_IFTYPE_STATION:
800 /* default smps_mode for BSS / P2P client is AUTOMATIC */
801 smps_mode = IEEE80211_SMPS_AUTOMATIC;
802 data->num_bss_ifaces++;
805 * Count unassoc BSSes, relax SMSP constraints
806 * and disable reduced Tx Power
808 if (!vif->bss_conf.assoc) {
809 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
811 if (iwl_mvm_bt_coex_reduced_txp(mvm,
814 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
818 case NL80211_IFTYPE_AP:
819 /* default smps_mode for AP / GO is OFF */
820 smps_mode = IEEE80211_SMPS_OFF;
821 if (!mvmvif->ap_ibss_active) {
822 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
827 /* the Ack / Cts kill mask must be default if AP / GO */
828 data->reduced_tx_power = false;
834 chanctx_conf = rcu_dereference(vif->chanctx_conf);
836 /* If channel context is invalid or not on 2.4GHz .. */
837 if ((!chanctx_conf ||
838 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) {
839 /* ... relax constraints and disable rssi events */
840 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
842 if (vif->type == NL80211_IFTYPE_STATION)
843 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
847 bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
848 if (bt_activity_grading >= BT_HIGH_TRAFFIC)
849 smps_mode = IEEE80211_SMPS_STATIC;
850 else if (bt_activity_grading >= BT_LOW_TRAFFIC)
851 smps_mode = vif->type == NL80211_IFTYPE_AP ?
853 IEEE80211_SMPS_DYNAMIC;
854 IWL_DEBUG_COEX(data->mvm,
855 "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n",
856 mvmvif->id, data->notif->bt_status, bt_activity_grading,
859 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, smps_mode);
861 /* low latency is always primary */
862 if (iwl_mvm_vif_low_latency(mvmvif)) {
863 data->primary_ll = true;
865 data->secondary = data->primary;
866 data->primary = chanctx_conf;
869 if (vif->type == NL80211_IFTYPE_AP) {
870 if (!mvmvif->ap_ibss_active)
873 if (chanctx_conf == data->primary)
876 if (!data->primary_ll) {
878 * downgrade the current primary no matter what its
881 data->secondary = data->primary;
882 data->primary = chanctx_conf;
884 /* there is low latency vif - we will be secondary */
885 data->secondary = chanctx_conf;
891 * STA / P2P Client, try to be primary if first vif. If we are in low
892 * latency mode, we are already in primary and just don't do much
894 if (!data->primary || data->primary == chanctx_conf)
895 data->primary = chanctx_conf;
896 else if (!data->secondary)
897 /* if secondary is not NULL, it might be a GO */
898 data->secondary = chanctx_conf;
900 /* don't reduce the Tx power if in loose scheme */
901 if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
902 mvm->cfg->bt_shared_single_ant) {
903 data->reduced_tx_power = false;
904 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
908 /* reduced Txpower only if BT is on, so ...*/
909 if (!data->notif->bt_status) {
910 /* ... cancel reduced Tx power ... */
911 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
912 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
913 data->reduced_tx_power = false;
915 /* ... and there is no need to get reports on RSSI any more. */
916 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
920 /* try to get the avg rssi from fw */
921 ave_rssi = mvmvif->bf_data.ave_beacon_signal;
923 /* if the RSSI isn't valid, fake it is very low */
926 if (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) {
927 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true))
928 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
931 * bt_kill_msk can be BT_KILL_MSK_REDUCED_TXPOW only if all the
932 * BSS / P2P clients have rssi above threshold.
933 * We set the bt_kill_msk to BT_KILL_MSK_REDUCED_TXPOW before
934 * the iteration, if one interface's rssi isn't good enough,
935 * bt_kill_msk will be set to default values.
937 } else if (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) {
938 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
939 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
942 * One interface hasn't rssi above threshold, bt_kill_msk must
943 * be set to default values.
945 data->reduced_tx_power = false;
948 /* Begin to monitor the RSSI: it may influence the reduced Tx power */
949 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
952 static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
954 struct iwl_bt_iterator_data data = {
956 .notif = &mvm->last_bt_notif,
957 .reduced_tx_power = true,
959 struct iwl_bt_coex_ci_cmd cmd = {};
963 ieee80211_iterate_active_interfaces_atomic(
964 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
965 iwl_mvm_bt_notif_iterator, &data);
968 struct ieee80211_chanctx_conf *chan = data.primary;
969 if (WARN_ON(!chan->def.chan)) {
974 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
976 cmd.co_run_bw_primary = 0;
978 cmd.co_run_bw_primary = 1;
979 if (chan->def.center_freq1 >
980 chan->def.chan->center_freq)
987 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
988 cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv);
991 if (data.secondary) {
992 struct ieee80211_chanctx_conf *chan = data.secondary;
993 if (WARN_ON(!data.secondary->def.chan)) {
998 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
1000 cmd.co_run_bw_secondary = 0;
1002 cmd.co_run_bw_secondary = 1;
1003 if (chan->def.center_freq1 >
1004 chan->def.chan->center_freq)
1010 cmd.bt_secondary_ci =
1011 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
1012 cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv);
1017 /* Don't spam the fw with the same command over and over */
1018 if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) {
1019 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, CMD_SYNC,
1021 IWL_ERR(mvm, "Failed to send BT_CI cmd");
1022 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd));
1026 * If there are no BSS / P2P client interfaces, reduced Tx Power is
1027 * irrelevant since it is based on the RSSI coming from the beacon.
1028 * Use BT_KILL_MSK_DEFAULT in that case.
1030 data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces;
1032 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power))
1033 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
1036 /* upon association, the fw will send in BT Coex notification */
1037 int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
1038 struct iwl_rx_cmd_buffer *rxb,
1039 struct iwl_device_cmd *dev_cmd)
1041 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1042 struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data;
1045 IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
1046 IWL_DEBUG_COEX(mvm, "\tBT status: %s\n",
1047 notif->bt_status ? "ON" : "OFF");
1048 IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn);
1049 IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
1050 IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
1051 le32_to_cpu(notif->primary_ch_lut));
1052 IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
1053 le32_to_cpu(notif->secondary_ch_lut));
1054 IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
1055 le32_to_cpu(notif->bt_activity_grading));
1056 IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n",
1057 notif->bt_agg_traffic_load);
1059 /* remember this notification for future use: rssi fluctuations */
1060 memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif));
1062 iwl_mvm_bt_coex_notif_handle(mvm);
1065 * This is an async handler for a notification, returning anything other
1066 * than 0 doesn't make sense even if HCMD failed.
1071 static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
1072 struct ieee80211_vif *vif)
1074 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1075 struct iwl_bt_iterator_data *data = _data;
1076 struct iwl_mvm *mvm = data->mvm;
1078 struct ieee80211_sta *sta;
1079 struct iwl_mvm_sta *mvmsta;
1081 struct ieee80211_chanctx_conf *chanctx_conf;
1084 chanctx_conf = rcu_dereference(vif->chanctx_conf);
1085 /* If channel context is invalid or not on 2.4GHz - don't count it */
1086 if (!chanctx_conf ||
1087 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
1093 if (vif->type != NL80211_IFTYPE_STATION ||
1094 mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1097 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1098 lockdep_is_held(&mvm->mutex));
1100 /* This can happen if the station has been removed right now */
1101 if (IS_ERR_OR_NULL(sta))
1104 mvmsta = iwl_mvm_sta_from_mac80211(sta);
1106 data->num_bss_ifaces++;
1109 * This interface doesn't support reduced Tx power (because of low
1110 * RSSI probably), then set bt_kill_msk to default values.
1112 if (!mvmsta->bt_reduced_txpower)
1113 data->reduced_tx_power = false;
1114 /* else - possibly leave it to BT_KILL_MSK_REDUCED_TXPOW */
1117 void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1118 enum ieee80211_rssi_event rssi_event)
1120 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1121 struct iwl_bt_iterator_data data = {
1123 .reduced_tx_power = true,
1127 lockdep_assert_held(&mvm->mutex);
1130 * Rssi update while not associated - can happen since the statistics
1131 * are handled asynchronously
1133 if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1136 /* No BT - reports should be disabled */
1137 if (!mvm->last_bt_notif.bt_status)
1140 IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
1141 rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
1144 * Check if rssi is good enough for reduced Tx power, but not in loose
1147 if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
1148 iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
1149 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
1152 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true);
1155 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
1157 ieee80211_iterate_active_interfaces_atomic(
1158 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1159 iwl_mvm_bt_rssi_iterator, &data);
1162 * If there are no BSS / P2P client interfaces, reduced Tx Power is
1163 * irrelevant since it is based on the RSSI coming from the beacon.
1164 * Use BT_KILL_MSK_DEFAULT in that case.
1166 data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces;
1168 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power))
1169 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
1172 #define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000)
1173 #define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
1175 u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm,
1176 struct ieee80211_sta *sta)
1178 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1179 enum iwl_bt_coex_lut_type lut_type;
1181 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
1183 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1185 lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1187 if (lut_type == BT_COEX_LOOSE_LUT)
1188 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1190 /* tight coex, high bt traffic, reduce AGG time limit */
1191 return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
1194 bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
1195 struct ieee80211_sta *sta)
1197 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1199 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
1204 * In Tight, BT can't Rx while we Tx, so use both antennas since BT is
1206 * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while we
1209 return iwl_get_coex_type(mvm, mvmsta->vif) == BT_COEX_TIGHT_LUT;
1212 bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm,
1213 enum ieee80211_band band)
1215 u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading);
1217 if (band != IEEE80211_BAND_2GHZ)
1220 return bt_activity >= BT_LOW_TRAFFIC;
1223 u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
1224 struct ieee80211_tx_info *info, u8 ac)
1226 __le16 fc = hdr->frame_control;
1228 if (info->band != IEEE80211_BAND_2GHZ)
1231 if (unlikely(mvm->bt_tx_prio))
1232 return mvm->bt_tx_prio - 1;
1234 /* High prio packet (wrt. BT coex) if it is EAPOL, MCAST or MGMT */
1235 if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO ||
1236 is_multicast_ether_addr(hdr->addr1) ||
1237 ieee80211_is_ctl(fc) || ieee80211_is_mgmt(fc) ||
1238 ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc))
1242 case IEEE80211_AC_BE:
1244 case IEEE80211_AC_VO:
1246 case IEEE80211_AC_VI:
1255 void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm)
1257 iwl_mvm_bt_coex_notif_handle(mvm);
1260 int iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm,
1261 struct iwl_rx_cmd_buffer *rxb,
1262 struct iwl_device_cmd *dev_cmd)
1264 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1265 u32 ant_isolation = le32_to_cpup((void *)pkt->data);
1266 u8 __maybe_unused lower_bound, upper_bound;
1269 struct iwl_bt_coex_cmd *bt_cmd;
1270 struct iwl_host_cmd cmd = {
1272 .len = { sizeof(*bt_cmd), },
1273 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
1277 if (!IWL_MVM_BT_COEX_CORUNNING)
1280 lockdep_assert_held(&mvm->mutex);
1282 if (ant_isolation == mvm->last_ant_isol)
1285 for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++)
1286 if (ant_isolation < antenna_coupling_ranges[lut + 1].range)
1289 lower_bound = antenna_coupling_ranges[lut].range;
1291 if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1)
1292 upper_bound = antenna_coupling_ranges[lut + 1].range;
1294 upper_bound = antenna_coupling_ranges[lut].range;
1296 IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n",
1297 ant_isolation, lower_bound, upper_bound, lut);
1299 mvm->last_ant_isol = ant_isolation;
1301 if (mvm->last_corun_lut == lut)
1304 mvm->last_corun_lut = lut;
1306 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
1309 cmd.data[0] = bt_cmd;
1311 bt_cmd->flags = cpu_to_le32(BT_COEX_NW);
1312 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
1313 BT_VALID_CORUN_LUT_20 |
1314 BT_VALID_CORUN_LUT_40);
1316 /* For the moment, use the same LUT for 20GHz and 40GHz */
1317 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[lut].lut20,
1318 sizeof(bt_cmd->bt4_corun_lut20));
1320 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[lut].lut20,
1321 sizeof(bt_cmd->bt4_corun_lut40));