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Merge branch 'perf/urgent' into perf/core, to pick up fixes
[mirror_ubuntu-bionic-kernel.git] / drivers / net / wireless / iwlwifi / mvm / coex_legacy.c
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0ea8d043
EG		 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.
8b4139dc 9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
0ea8d043
EG		 10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
23 * USA
24 *
25 * The full GNU General Public License is included in this distribution
26 * in the file called COPYING.
27 *
28 * Contact Information:
29 * Intel Linux Wireless <ilw@linux.intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
31 *
32 * BSD LICENSE
33 *
34 * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved.
8b4139dc 35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
0ea8d043
EG		 36 * All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 *
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
47 * distribution.
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
63 *
64 *****************************************************************************/
65
66#include <linux/ieee80211.h>
67#include <linux/etherdevice.h>
68#include <net/mac80211.h>
69
70#include "fw-api-coex.h"
71#include "iwl-modparams.h"
72#include "mvm.h"
73#include "iwl-debug.h"
74
75#define EVENT_PRIO_ANT(_evt, _prio, _shrd_ant) \
76 [(_evt)] = (((_prio) << BT_COEX_PRIO_TBL_PRIO_POS) | \
77 ((_shrd_ant) << BT_COEX_PRIO_TBL_SHRD_ANT_POS))
78
79static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
80 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB1,
81 BT_COEX_PRIO_TBL_PRIO_BYPASS, 0),
82 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB2,
83 BT_COEX_PRIO_TBL_PRIO_BYPASS, 1),
84 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW1,
85 BT_COEX_PRIO_TBL_PRIO_LOW, 0),
86 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW2,
87 BT_COEX_PRIO_TBL_PRIO_LOW, 1),
88 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH1,
89 BT_COEX_PRIO_TBL_PRIO_HIGH, 0),
90 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH2,
91 BT_COEX_PRIO_TBL_PRIO_HIGH, 1),
92 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_DTIM,
93 BT_COEX_PRIO_TBL_DISABLED, 0),
94 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN52,
95 BT_COEX_PRIO_TBL_PRIO_COEX_OFF, 0),
96 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN24,
97 BT_COEX_PRIO_TBL_PRIO_COEX_ON, 0),
98 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_IDLE,
99 BT_COEX_PRIO_TBL_PRIO_COEX_IDLE, 0),
100 0, 0, 0, 0, 0, 0,
101};
102
103#undef EVENT_PRIO_ANT
104
105#define BT_ANTENNA_COUPLING_THRESHOLD (30)
106
107static int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm)
108{
109 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
110 return 0;
111
112 return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, 0,
113 sizeof(struct iwl_bt_coex_prio_tbl_cmd),
114 &iwl_bt_prio_tbl);
115}
116
117static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = {
118 cpu_to_le32(0xf0f0f0f0), /* 50% */
119 cpu_to_le32(0xc0c0c0c0), /* 25% */
120 cpu_to_le32(0xfcfcfcfc), /* 75% */
121 cpu_to_le32(0xfefefefe), /* 87.5% */
122};
123
124static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
125 {
126 cpu_to_le32(0x40000000),
127 cpu_to_le32(0x00000000),
128 cpu_to_le32(0x44000000),
129 cpu_to_le32(0x00000000),
130 cpu_to_le32(0x40000000),
131 cpu_to_le32(0x00000000),
132 cpu_to_le32(0x44000000),
133 cpu_to_le32(0x00000000),
134 cpu_to_le32(0xc0004000),
135 cpu_to_le32(0xf0005000),
136 cpu_to_le32(0xc0004000),
137 cpu_to_le32(0xf0005000),
138 },
139 {
140 cpu_to_le32(0x40000000),
141 cpu_to_le32(0x00000000),
142 cpu_to_le32(0x44000000),
143 cpu_to_le32(0x00000000),
144 cpu_to_le32(0x40000000),
145 cpu_to_le32(0x00000000),
146 cpu_to_le32(0x44000000),
147 cpu_to_le32(0x00000000),
148 cpu_to_le32(0xc0004000),
149 cpu_to_le32(0xf0005000),
150 cpu_to_le32(0xc0004000),
151 cpu_to_le32(0xf0005000),
152 },
153 {
154 cpu_to_le32(0x40000000),
155 cpu_to_le32(0x00000000),
156 cpu_to_le32(0x44000000),
157 cpu_to_le32(0x00000000),
158 cpu_to_le32(0x40000000),
159 cpu_to_le32(0x00000000),
160 cpu_to_le32(0x44000000),
161 cpu_to_le32(0x00000000),
162 cpu_to_le32(0xc0004000),
163 cpu_to_le32(0xf0005000),
164 cpu_to_le32(0xc0004000),
165 cpu_to_le32(0xf0005000),
166 },
167};
168
169static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
170 {
171 /* Tight */
172 cpu_to_le32(0xaaaaaaaa),
173 cpu_to_le32(0xaaaaaaaa),
174 cpu_to_le32(0xaeaaaaaa),
175 cpu_to_le32(0xaaaaaaaa),
176 cpu_to_le32(0xcc00ff28),
177 cpu_to_le32(0x0000aaaa),
178 cpu_to_le32(0xcc00aaaa),
179 cpu_to_le32(0x0000aaaa),
180 cpu_to_le32(0xc0004000),
181 cpu_to_le32(0x00004000),
182 cpu_to_le32(0xf0005000),
183 cpu_to_le32(0xf0005000),
184 },
185 {
186 /* Loose */
187 cpu_to_le32(0xaaaaaaaa),
188 cpu_to_le32(0xaaaaaaaa),
189 cpu_to_le32(0xaaaaaaaa),
190 cpu_to_le32(0xaaaaaaaa),
191 cpu_to_le32(0xcc00ff28),
192 cpu_to_le32(0x0000aaaa),
193 cpu_to_le32(0xcc00aaaa),
194 cpu_to_le32(0x0000aaaa),
195 cpu_to_le32(0x00000000),
196 cpu_to_le32(0x00000000),
197 cpu_to_le32(0xf0005000),
198 cpu_to_le32(0xf0005000),
199 },
200 {
201 /* Tx Tx disabled */
202 cpu_to_le32(0xaaaaaaaa),
203 cpu_to_le32(0xaaaaaaaa),
204 cpu_to_le32(0xeeaaaaaa),
205 cpu_to_le32(0xaaaaaaaa),
206 cpu_to_le32(0xcc00ff28),
207 cpu_to_le32(0x0000aaaa),
208 cpu_to_le32(0xcc00aaaa),
209 cpu_to_le32(0x0000aaaa),
210 cpu_to_le32(0xc0004000),
211 cpu_to_le32(0xc0004000),
212 cpu_to_le32(0xf0005000),
213 cpu_to_le32(0xf0005000),
214 },
215};
216
217/* 20MHz / 40MHz below / 40Mhz above*/
218static const __le64 iwl_ci_mask[][3] = {
219 /* dummy entry for channel 0 */
220 {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
221 {
222 cpu_to_le64(0x0000001FFFULL),
223 cpu_to_le64(0x0ULL),
224 cpu_to_le64(0x00007FFFFFULL),
225 },
226 {
227 cpu_to_le64(0x000000FFFFULL),
228 cpu_to_le64(0x0ULL),
229 cpu_to_le64(0x0003FFFFFFULL),
230 },
231 {
232 cpu_to_le64(0x000003FFFCULL),
233 cpu_to_le64(0x0ULL),
234 cpu_to_le64(0x000FFFFFFCULL),
235 },
236 {
237 cpu_to_le64(0x00001FFFE0ULL),
238 cpu_to_le64(0x0ULL),
239 cpu_to_le64(0x007FFFFFE0ULL),
240 },
241 {
242 cpu_to_le64(0x00007FFF80ULL),
243 cpu_to_le64(0x00007FFFFFULL),
244 cpu_to_le64(0x01FFFFFF80ULL),
245 },
246 {
247 cpu_to_le64(0x0003FFFC00ULL),
248 cpu_to_le64(0x0003FFFFFFULL),
249 cpu_to_le64(0x0FFFFFFC00ULL),
250 },
251 {
252 cpu_to_le64(0x000FFFF000ULL),
253 cpu_to_le64(0x000FFFFFFCULL),
254 cpu_to_le64(0x3FFFFFF000ULL),
255 },
256 {
257 cpu_to_le64(0x007FFF8000ULL),
258 cpu_to_le64(0x007FFFFFE0ULL),
259 cpu_to_le64(0xFFFFFF8000ULL),
260 },
261 {
262 cpu_to_le64(0x01FFFE0000ULL),
263 cpu_to_le64(0x01FFFFFF80ULL),
264 cpu_to_le64(0xFFFFFE0000ULL),
265 },
266 {
267 cpu_to_le64(0x0FFFF00000ULL),
268 cpu_to_le64(0x0FFFFFFC00ULL),
269 cpu_to_le64(0x0ULL),
270 },
271 {
272 cpu_to_le64(0x3FFFC00000ULL),
273 cpu_to_le64(0x3FFFFFF000ULL),
274 cpu_to_le64(0x0)
275 },
276 {
277 cpu_to_le64(0xFFFE000000ULL),
278 cpu_to_le64(0xFFFFFF8000ULL),
279 cpu_to_le64(0x0)
280 },
281 {
282 cpu_to_le64(0xFFF8000000ULL),
283 cpu_to_le64(0xFFFFFE0000ULL),
284 cpu_to_le64(0x0)
285 },
286 {
287 cpu_to_le64(0xFFC0000000ULL),
288 cpu_to_le64(0x0ULL),
289 cpu_to_le64(0x0ULL)
290 },
291};
292
293static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = {
d14b28fd
EG		 294 cpu_to_le32(0x2e402280),
295 cpu_to_le32(0x7711a751),
0ea8d043
EG		 296};
297
298struct corunning_block_luts {
299 u8 range;
300 __le32 lut20[BT_COEX_CORUN_LUT_SIZE];
301};
302
303/*
304 * Ranges for the antenna coupling calibration / co-running block LUT:
305 * LUT0: [ 0, 12[
306 * LUT1: [12, 20[
307 * LUT2: [20, 21[
308 * LUT3: [21, 23[
309 * LUT4: [23, 27[
310 * LUT5: [27, 30[
311 * LUT6: [30, 32[
312 * LUT7: [32, 33[
313 * LUT8: [33, - [
314 */
315static const struct corunning_block_luts antenna_coupling_ranges[] = {
316 {
317 .range = 0,
318 .lut20 = {
319 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
320 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
321 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
322 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
323 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
324 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
325 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
326 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
327 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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 },
336 },
337 {
338 .range = 12,
339 .lut20 = {
340 cpu_to_le32(0x00000001), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
346 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
347 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
348 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
349 cpu_to_le32(0x00000000), 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 },
357 },
358 {
359 .range = 20,
360 .lut20 = {
361 cpu_to_le32(0x00000002), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
367 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
368 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
369 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
370 cpu_to_le32(0x00000000), 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 },
378 },
379 {
380 .range = 21,
381 .lut20 = {
382 cpu_to_le32(0x00000003), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
388 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
389 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
390 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
391 cpu_to_le32(0x00000000), 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 },
399 },
400 {
401 .range = 23,
402 .lut20 = {
403 cpu_to_le32(0x00000004), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
409 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
410 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
411 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
412 cpu_to_le32(0x00000000), 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 },
420 },
421 {
422 .range = 27,
423 .lut20 = {
424 cpu_to_le32(0x00000005), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
430 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
431 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
432 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
433 cpu_to_le32(0x00000000), 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 },
441 },
442 {
443 .range = 30,
444 .lut20 = {
445 cpu_to_le32(0x00000006), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
451 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
452 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
453 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
454 cpu_to_le32(0x00000000), 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 },
462 },
463 {
464 .range = 32,
465 .lut20 = {
466 cpu_to_le32(0x00000007), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
472 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
473 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
474 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
475 cpu_to_le32(0x00000000), 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 },
483 },
484 {
485 .range = 33,
486 .lut20 = {
487 cpu_to_le32(0x00000008), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
493 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
494 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
495 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
496 cpu_to_le32(0x00000000), 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 },
504 },
505};
506
507static enum iwl_bt_coex_lut_type
508iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
509{
510 struct ieee80211_chanctx_conf *chanctx_conf;
511 enum iwl_bt_coex_lut_type ret;
512 u16 phy_ctx_id;
513
514 /*
515 * Checking that we hold mvm->mutex is a good idea, but the rate
516 * control can't acquire the mutex since it runs in Tx path.
517 * So this is racy in that case, but in the worst case, the AMPDU
518 * size limit will be wrong for a short time which is not a big
519 * issue.
520 */
521
522 rcu_read_lock();
523
524 chanctx_conf = rcu_dereference(vif->chanctx_conf);
525
526 if (!chanctx_conf ||
527 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
528 rcu_read_unlock();
529 return BT_COEX_INVALID_LUT;
530 }
531
532 ret = BT_COEX_TX_DIS_LUT;
533
534 if (mvm->cfg->bt_shared_single_ant) {
535 rcu_read_unlock();
536 return ret;
537 }
538
539 phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
540
541 if (mvm->last_bt_ci_cmd_old.primary_ch_phy_id == phy_ctx_id)
542 ret = le32_to_cpu(mvm->last_bt_notif_old.primary_ch_lut);
543 else if (mvm->last_bt_ci_cmd_old.secondary_ch_phy_id == phy_ctx_id)
544 ret = le32_to_cpu(mvm->last_bt_notif_old.secondary_ch_lut);
545 /* else - default = TX TX disallowed */
546
547 rcu_read_unlock();
548
549 return ret;
550}
551
552int iwl_send_bt_init_conf_old(struct iwl_mvm *mvm)
553{
554 struct iwl_bt_coex_cmd_old *bt_cmd;
555 struct iwl_host_cmd cmd = {
556 .id = BT_CONFIG,
557 .len = { sizeof(*bt_cmd), },
558 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
559 };
560 int ret;
561 u32 flags;
562
563 ret = iwl_send_bt_prio_tbl(mvm);
564 if (ret)
565 return ret;
566
567 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
568 if (!bt_cmd)
569 return -ENOMEM;
570 cmd.data[0] = bt_cmd;
571
572 lockdep_assert_held(&mvm->mutex);
573
574 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) {
575 switch (mvm->bt_force_ant_mode) {
576 case BT_FORCE_ANT_AUTO:
577 flags = BT_COEX_AUTO_OLD;
578 break;
579 case BT_FORCE_ANT_BT:
580 flags = BT_COEX_BT_OLD;
581 break;
582 case BT_FORCE_ANT_WIFI:
583 flags = BT_COEX_WIFI_OLD;
584 break;
585 default:
586 WARN_ON(1);
587 flags = 0;
588 }
589
590 bt_cmd->flags = cpu_to_le32(flags);
591 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE);
592 goto send_cmd;
593 }
594
595 bt_cmd->max_kill = 5;
596 bt_cmd->bt4_antenna_isolation_thr = BT_ANTENNA_COUPLING_THRESHOLD;
597 bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling;
598 bt_cmd->bt4_tx_tx_delta_freq_thr = 15;
599 bt_cmd->bt4_tx_rx_max_freq0 = 15;
600 bt_cmd->override_primary_lut = BT_COEX_INVALID_LUT;
601 bt_cmd->override_secondary_lut = BT_COEX_INVALID_LUT;
602
603 flags = iwlwifi_mod_params.bt_coex_active ?
604 BT_COEX_NW_OLD : BT_COEX_DISABLE_OLD;
605 bt_cmd->flags = cpu_to_le32(flags);
606
607 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE |
608 BT_VALID_BT_PRIO_BOOST |
609 BT_VALID_MAX_KILL |
610 BT_VALID_3W_TMRS |
611 BT_VALID_KILL_ACK |
612 BT_VALID_KILL_CTS |
613 BT_VALID_REDUCED_TX_POWER |
614 BT_VALID_LUT |
615 BT_VALID_WIFI_RX_SW_PRIO_BOOST |
616 BT_VALID_WIFI_TX_SW_PRIO_BOOST |
617 BT_VALID_ANT_ISOLATION |
618 BT_VALID_ANT_ISOLATION_THRS |
619 BT_VALID_TXTX_DELTA_FREQ_THRS |
620 BT_VALID_TXRX_MAX_FREQ_0 |
621 BT_VALID_SYNC_TO_SCO);
622
623 if (IWL_MVM_BT_COEX_SYNC2SCO)
624 bt_cmd->flags |= cpu_to_le32(BT_COEX_SYNC2SCO);
625
626 if (IWL_MVM_BT_COEX_CORUNNING) {
627 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_CORUN_LUT_20 |
628 BT_VALID_CORUN_LUT_40);
629 bt_cmd->flags |= cpu_to_le32(BT_COEX_CORUNNING);
630 }
631
632 if (IWL_MVM_BT_COEX_MPLUT) {
633 bt_cmd->flags |= cpu_to_le32(BT_COEX_MPLUT);
634 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_MULTI_PRIO_LUT);
635 }
636
637 if (mvm->cfg->bt_shared_single_ant)
638 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant,
639 sizeof(iwl_single_shared_ant));
640 else
641 memcpy(&bt_cmd->decision_lut, iwl_combined_lookup,
642 sizeof(iwl_combined_lookup));
643
644 /* Take first Co-running block LUT to get started */
645 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[0].lut20,
646 sizeof(bt_cmd->bt4_corun_lut20));
647 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[0].lut20,
648 sizeof(bt_cmd->bt4_corun_lut40));
649
650 memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost,
651 sizeof(iwl_bt_prio_boost));
652 memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut,
653 sizeof(iwl_bt_mprio_lut));
0ea8d043
EG		 654
655send_cmd:
656 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
657 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
658
659 ret = iwl_mvm_send_cmd(mvm, &cmd);
660
661 kfree(bt_cmd);
662 return ret;
663}
664
1459f269 665static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm)
0ea8d043 666{
0ea8d043 667 struct iwl_bt_coex_profile_notif_old *notif = &mvm->last_bt_notif_old;
1459f269
EG		 668 u32 primary_lut = le32_to_cpu(notif->primary_ch_lut);
669 u32 ag = le32_to_cpu(notif->bt_activity_grading);
670 struct iwl_bt_coex_cmd_old *bt_cmd;
671 u8 ack_kill_msk, cts_kill_msk;
0ea8d043
EG		 672 struct iwl_host_cmd cmd = {
673 .id = BT_CONFIG,
674 .data[0] = &bt_cmd,
675 .len = { sizeof(*bt_cmd), },
676 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
677 };
678 int ret = 0;
679
680 lockdep_assert_held(&mvm->mutex);
681
1459f269
EG		 682 ack_kill_msk = iwl_bt_ack_kill_msk[ag][primary_lut];
683 cts_kill_msk = iwl_bt_cts_kill_msk[ag][primary_lut];
0ea8d043 684
1459f269
EG		 685 if (mvm->bt_ack_kill_msk[0] == ack_kill_msk &&
686 mvm->bt_cts_kill_msk[0] == cts_kill_msk)
0ea8d043
EG		 687 return 0;
688
1459f269
EG		 689 mvm->bt_ack_kill_msk[0] = ack_kill_msk;
690 mvm->bt_cts_kill_msk[0] = cts_kill_msk;
0ea8d043
EG		 691
692 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
693 if (!bt_cmd)
694 return -ENOMEM;
695 cmd.data[0] = bt_cmd;
696 bt_cmd->flags = cpu_to_le32(BT_COEX_NW_OLD);
697
1459f269
EG		 698 bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ctl_kill_msk[ack_kill_msk]);
699 bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_ctl_kill_msk[cts_kill_msk]);
0ea8d043
EG		 700 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
701 BT_VALID_KILL_ACK |
702 BT_VALID_KILL_CTS);
703
0ea8d043
EG		 704 ret = iwl_mvm_send_cmd(mvm, &cmd);
705
706 kfree(bt_cmd);
707 return ret;
708}
709
710static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
711 bool enable)
712{
713 struct iwl_bt_coex_cmd_old *bt_cmd;
714 /* Send ASYNC since this can be sent from an atomic context */
715 struct iwl_host_cmd cmd = {
716 .id = BT_CONFIG,
717 .len = { sizeof(*bt_cmd), },
718 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
719 .flags = CMD_ASYNC,
720 };
721 struct iwl_mvm_sta *mvmsta;
722 int ret;
723
724 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
725 if (!mvmsta)
726 return 0;
727
728 /* nothing to do */
729 if (mvmsta->bt_reduced_txpower == enable)
730 return 0;
731
732 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC);
733 if (!bt_cmd)
734 return -ENOMEM;
735 cmd.data[0] = bt_cmd;
736 bt_cmd->flags = cpu_to_le32(BT_COEX_NW_OLD);
737
738 bt_cmd->valid_bit_msk =
739 cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER);
740 bt_cmd->bt_reduced_tx_power = sta_id;
741
742 if (enable)
743 bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT;
744
745 IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
746 enable ? "en" : "dis", sta_id);
747
748 mvmsta->bt_reduced_txpower = enable;
749
750 ret = iwl_mvm_send_cmd(mvm, &cmd);
751
752 kfree(bt_cmd);
753 return ret;
754}
755
756struct iwl_bt_iterator_data {
757 struct iwl_bt_coex_profile_notif_old *notif;
758 struct iwl_mvm *mvm;
0ea8d043
EG		 759 struct ieee80211_chanctx_conf *primary;
760 struct ieee80211_chanctx_conf *secondary;
761 bool primary_ll;
762};
763
764static inline
765void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
766 struct ieee80211_vif *vif,
767 bool enable, int rssi)
768{
769 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
770
771 mvmvif->bf_data.last_bt_coex_event = rssi;
772 mvmvif->bf_data.bt_coex_max_thold =
773 enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0;
774 mvmvif->bf_data.bt_coex_min_thold =
775 enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0;
776}
777
778/* must be called under rcu_read_lock */
779static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
780 struct ieee80211_vif *vif)
781{
782 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
783 struct iwl_bt_iterator_data *data = _data;
784 struct iwl_mvm *mvm = data->mvm;
785 struct ieee80211_chanctx_conf *chanctx_conf;
786 enum ieee80211_smps_mode smps_mode;
787 u32 bt_activity_grading;
788 int ave_rssi;
789
790 lockdep_assert_held(&mvm->mutex);
791
792 switch (vif->type) {
793 case NL80211_IFTYPE_STATION:
0ea8d043
EG		 794 /* default smps_mode for BSS / P2P client is AUTOMATIC */
795 smps_mode = IEEE80211_SMPS_AUTOMATIC;
796 break;
797 case NL80211_IFTYPE_AP:
45bbb2ca 798 if (!mvmvif->ap_ibss_active)
0ea8d043 799 return;
0ea8d043
EG		 800 break;
801 default:
802 return;
803 }
804
805 chanctx_conf = rcu_dereference(vif->chanctx_conf);
806
807 /* If channel context is invalid or not on 2.4GHz .. */
808 if ((!chanctx_conf ||
809 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) {
0ea8d043 810 if (vif->type == NL80211_IFTYPE_STATION) {
45bbb2ca
EG		 811 /* ... relax constraints and disable rssi events */
812 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
813 smps_mode);
0ea8d043
EG		 814 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
815 false);
816 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
817 }
818 return;
819 }
820
821 bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
822 if (bt_activity_grading >= BT_HIGH_TRAFFIC)
823 smps_mode = IEEE80211_SMPS_STATIC;
824 else if (bt_activity_grading >= BT_LOW_TRAFFIC)
825 smps_mode = vif->type == NL80211_IFTYPE_AP ?
826 IEEE80211_SMPS_OFF :
827 IEEE80211_SMPS_DYNAMIC;
828
829 /* relax SMPS contraints for next association */
830 if (!vif->bss_conf.assoc)
831 smps_mode = IEEE80211_SMPS_AUTOMATIC;
832
833 IWL_DEBUG_COEX(data->mvm,
834 "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n",
835 mvmvif->id, data->notif->bt_status, bt_activity_grading,
836 smps_mode);
837
45bbb2ca
EG		 838 if (vif->type == NL80211_IFTYPE_STATION)
839 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
840 smps_mode);
0ea8d043
EG		 841
842 /* low latency is always primary */
843 if (iwl_mvm_vif_low_latency(mvmvif)) {
844 data->primary_ll = true;
845
846 data->secondary = data->primary;
847 data->primary = chanctx_conf;
848 }
849
850 if (vif->type == NL80211_IFTYPE_AP) {
851 if (!mvmvif->ap_ibss_active)
852 return;
853
854 if (chanctx_conf == data->primary)
855 return;
856
857 if (!data->primary_ll) {
858 /*
859 * downgrade the current primary no matter what its
860 * type is.
861 */
862 data->secondary = data->primary;
863 data->primary = chanctx_conf;
864 } else {
865 /* there is low latency vif - we will be secondary */
866 data->secondary = chanctx_conf;
867 }
868 return;
869 }
870
871 /*
872 * STA / P2P Client, try to be primary if first vif. If we are in low
873 * latency mode, we are already in primary and just don't do much
874 */
875 if (!data->primary || data->primary == chanctx_conf)
876 data->primary = chanctx_conf;
877 else if (!data->secondary)
878 /* if secondary is not NULL, it might be a GO */
879 data->secondary = chanctx_conf;
880
881 /*
882 * don't reduce the Tx power if one of these is true:
883 * we are in LOOSE
884 * single share antenna product
885 * BT is active
886 * we are associated
887 */
888 if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
889 mvm->cfg->bt_shared_single_ant || !vif->bss_conf.assoc ||
890 !data->notif->bt_status) {
0ea8d043
EG		 891 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false);
892 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
893 return;
894 }
895
896 /* try to get the avg rssi from fw */
897 ave_rssi = mvmvif->bf_data.ave_beacon_signal;
898
899 /* if the RSSI isn't valid, fake it is very low */
900 if (!ave_rssi)
901 ave_rssi = -100;
902 if (ave_rssi > -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH) {
903 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true))
904 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
0ea8d043
EG		 905 } else if (ave_rssi < -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH) {
906 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
907 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
0ea8d043
EG		 908 }
909
910 /* Begin to monitor the RSSI: it may influence the reduced Tx power */
911 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
912}
913
914static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
915{
916 struct iwl_bt_iterator_data data = {
917 .mvm = mvm,
918 .notif = &mvm->last_bt_notif_old,
0ea8d043
EG		 919 };
920 struct iwl_bt_coex_ci_cmd_old cmd = {};
921 u8 ci_bw_idx;
922
923 /* Ignore updates if we are in force mode */
924 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
925 return;
926
927 rcu_read_lock();
928 ieee80211_iterate_active_interfaces_atomic(
929 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
930 iwl_mvm_bt_notif_iterator, &data);
931
932 if (data.primary) {
933 struct ieee80211_chanctx_conf *chan = data.primary;
934
935 if (WARN_ON(!chan->def.chan)) {
936 rcu_read_unlock();
937 return;
938 }
939
940 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
941 ci_bw_idx = 0;
942 cmd.co_run_bw_primary = 0;
943 } else {
944 cmd.co_run_bw_primary = 1;
945 if (chan->def.center_freq1 >
946 chan->def.chan->center_freq)
947 ci_bw_idx = 2;
948 else
949 ci_bw_idx = 1;
950 }
951
952 cmd.bt_primary_ci =
953 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
954 cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv);
955 }
956
957 if (data.secondary) {
958 struct ieee80211_chanctx_conf *chan = data.secondary;
959
960 if (WARN_ON(!data.secondary->def.chan)) {
961 rcu_read_unlock();
962 return;
963 }
964
965 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
966 ci_bw_idx = 0;
967 cmd.co_run_bw_secondary = 0;
968 } else {
969 cmd.co_run_bw_secondary = 1;
970 if (chan->def.center_freq1 >
971 chan->def.chan->center_freq)
972 ci_bw_idx = 2;
973 else
974 ci_bw_idx = 1;
975 }
976
977 cmd.bt_secondary_ci =
978 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
979 cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv);
980 }
981
982 rcu_read_unlock();
983
984 /* Don't spam the fw with the same command over and over */
985 if (memcmp(&cmd, &mvm->last_bt_ci_cmd_old, sizeof(cmd))) {
986 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0,
987 sizeof(cmd), &cmd))
988 IWL_ERR(mvm, "Failed to send BT_CI cmd\n");
989 memcpy(&mvm->last_bt_ci_cmd_old, &cmd, sizeof(cmd));
990 }
991
1459f269 992 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm))
0ea8d043
EG		 993 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
994}
995
996int iwl_mvm_rx_bt_coex_notif_old(struct iwl_mvm *mvm,
997 struct iwl_rx_cmd_buffer *rxb,
998 struct iwl_device_cmd *dev_cmd)
999{
1000 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1001 struct iwl_bt_coex_profile_notif_old *notif = (void *)pkt->data;
1002
1003 IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
1004 IWL_DEBUG_COEX(mvm, "\tBT status: %s\n",
1005 notif->bt_status ? "ON" : "OFF");
1006 IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn);
1007 IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
1008 IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
1009 le32_to_cpu(notif->primary_ch_lut));
1010 IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
1011 le32_to_cpu(notif->secondary_ch_lut));
1012 IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
1013 le32_to_cpu(notif->bt_activity_grading));
1014 IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n",
1015 notif->bt_agg_traffic_load);
1016
1017 /* remember this notification for future use: rssi fluctuations */
1018 memcpy(&mvm->last_bt_notif_old, notif, sizeof(mvm->last_bt_notif_old));
1019
1020 iwl_mvm_bt_coex_notif_handle(mvm);
1021
1022 /*
1023 * This is an async handler for a notification, returning anything other
1024 * than 0 doesn't make sense even if HCMD failed.
1025 */
1026 return 0;
1027}
1028
1029static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
1030 struct ieee80211_vif *vif)
1031{
1032 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1033 struct iwl_bt_iterator_data *data = _data;
1034 struct iwl_mvm *mvm = data->mvm;
1035
1036 struct ieee80211_sta *sta;
1037 struct iwl_mvm_sta *mvmsta;
1038
1039 struct ieee80211_chanctx_conf *chanctx_conf;
1040
1041 rcu_read_lock();
1042 chanctx_conf = rcu_dereference(vif->chanctx_conf);
1043 /* If channel context is invalid or not on 2.4GHz - don't count it */
1044 if (!chanctx_conf ||
1045 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
1046 rcu_read_unlock();
1047 return;
1048 }
1049 rcu_read_unlock();
1050
1051 if (vif->type != NL80211_IFTYPE_STATION ||
1052 mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1053 return;
1054
1055 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1056 lockdep_is_held(&mvm->mutex));
1057
1058 /* This can happen if the station has been removed right now */
1059 if (IS_ERR_OR_NULL(sta))
1060 return;
1061
1062 mvmsta = iwl_mvm_sta_from_mac80211(sta);
0ea8d043
EG		 1063}
1064
1065void iwl_mvm_bt_rssi_event_old(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1066 enum ieee80211_rssi_event rssi_event)
1067{
1068 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1069 struct iwl_bt_iterator_data data = {
1070 .mvm = mvm,
0ea8d043
EG		 1071 };
1072 int ret;
1073
1074 lockdep_assert_held(&mvm->mutex);
1075
1076 /* Ignore updates if we are in force mode */
1077 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1078 return;
1079
1080 /*
1081 * Rssi update while not associated - can happen since the statistics
1082 * are handled asynchronously
1083 */
1084 if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1085 return;
1086
1087 /* No BT - reports should be disabled */
1088 if (!mvm->last_bt_notif_old.bt_status)
1089 return;
1090
1091 IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
1092 rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
1093
1094 /*
1095 * Check if rssi is good enough for reduced Tx power, but not in loose
1096 * scheme.
1097 */
1098 if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
1099 iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
1100 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
1101 false);
1102 else
1103 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true);
1104
1105 if (ret)
1106 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
1107
1108 ieee80211_iterate_active_interfaces_atomic(
1109 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1110 iwl_mvm_bt_rssi_iterator, &data);
1111
1459f269 1112 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm))
0ea8d043
EG		 1113 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
1114}
1115
1116#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000)
1117#define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
1118
1119u16 iwl_mvm_coex_agg_time_limit_old(struct iwl_mvm *mvm,
1120 struct ieee80211_sta *sta)
1121{
1122 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1123 enum iwl_bt_coex_lut_type lut_type;
1124
1125 if (le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading) <
1126 BT_HIGH_TRAFFIC)
1127 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1128
1129 if (mvm->last_bt_notif_old.ttc_enabled)
1130 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1131
1132 lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1133
1134 if (lut_type == BT_COEX_LOOSE_LUT || lut_type == BT_COEX_INVALID_LUT)
1135 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1136
1137 /* tight coex, high bt traffic, reduce AGG time limit */
1138 return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
1139}
1140
1141bool iwl_mvm_bt_coex_is_mimo_allowed_old(struct iwl_mvm *mvm,
1142 struct ieee80211_sta *sta)
1143{
1144 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1145 enum iwl_bt_coex_lut_type lut_type;
1146
1147 if (mvm->last_bt_notif_old.ttc_enabled)
1148 return true;
1149
1150 if (le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading) <
1151 BT_HIGH_TRAFFIC)
1152 return true;
1153
1154 /*
1155 * In Tight / TxTxDis, BT can't Rx while we Tx, so use both antennas
1156 * since BT is already killed.
1157 * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while
1158 * we Tx.
1159 * When we are in 5GHz, we'll get BT_COEX_INVALID_LUT allowing MIMO.
1160 */
1161 lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1162 return lut_type != BT_COEX_LOOSE_LUT;
1163}
1164
1165bool iwl_mvm_bt_coex_is_shared_ant_avail_old(struct iwl_mvm *mvm)
1166{
1167 u32 ag = le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading);
1168 return ag == BT_OFF;
1169}
1170
1171bool iwl_mvm_bt_coex_is_tpc_allowed_old(struct iwl_mvm *mvm,
1172 enum ieee80211_band band)
1173{
1174 u32 bt_activity =
1175 le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading);
1176
1177 if (band != IEEE80211_BAND_2GHZ)
1178 return false;
1179
1180 return bt_activity >= BT_LOW_TRAFFIC;
1181}
1182
1183void iwl_mvm_bt_coex_vif_change_old(struct iwl_mvm *mvm)
1184{
1185 iwl_mvm_bt_coex_notif_handle(mvm);
1186}
1187
1188int iwl_mvm_rx_ant_coupling_notif_old(struct iwl_mvm *mvm,
1189 struct iwl_rx_cmd_buffer *rxb,
1190 struct iwl_device_cmd *dev_cmd)
1191{
1192 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1193 u32 ant_isolation = le32_to_cpup((void *)pkt->data);
1194 u8 __maybe_unused lower_bound, upper_bound;
1195 int ret;
1196 u8 lut;
1197
1198 struct iwl_bt_coex_cmd_old *bt_cmd;
1199 struct iwl_host_cmd cmd = {
1200 .id = BT_CONFIG,
1201 .len = { sizeof(*bt_cmd), },
1202 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
1203 };
1204
1205 if (!IWL_MVM_BT_COEX_CORUNNING)
1206 return 0;
1207
1208 lockdep_assert_held(&mvm->mutex);
1209
1210 /* Ignore updates if we are in force mode */
1211 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1212 return 0;
1213
1214 if (ant_isolation == mvm->last_ant_isol)
1215 return 0;
1216
1217 for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++)
1218 if (ant_isolation < antenna_coupling_ranges[lut + 1].range)
1219 break;
1220
1221 lower_bound = antenna_coupling_ranges[lut].range;
1222
1223 if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1)
1224 upper_bound = antenna_coupling_ranges[lut + 1].range;
1225 else
1226 upper_bound = antenna_coupling_ranges[lut].range;
1227
1228 IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n",
1229 ant_isolation, lower_bound, upper_bound, lut);
1230
1231 mvm->last_ant_isol = ant_isolation;
1232
1233 if (mvm->last_corun_lut == lut)
1234 return 0;
1235
1236 mvm->last_corun_lut = lut;
1237
1238 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
1239 if (!bt_cmd)
1240 return 0;
1241 cmd.data[0] = bt_cmd;
1242
1243 bt_cmd->flags = cpu_to_le32(BT_COEX_NW_OLD);
1244 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
1245 BT_VALID_CORUN_LUT_20 |
1246 BT_VALID_CORUN_LUT_40);
1247
1248 /* For the moment, use the same LUT for 20GHz and 40GHz */
1249 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[lut].lut20,
1250 sizeof(bt_cmd->bt4_corun_lut20));
1251
1252 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[lut].lut20,
1253 sizeof(bt_cmd->bt4_corun_lut40));
1254
1255 ret = iwl_mvm_send_cmd(mvm, &cmd);
1256
1257 kfree(bt_cmd);
1258 return ret;
1259}
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