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iwlwifi: mvm: BT Coex - don't limit rate control if TTC is on
[linux-2.6-block.git] / drivers / net / wireless / iwlwifi / mvm / coex.c
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931d4160
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 *
51368bf7 8 * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved.
931d4160
EG		 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 *
51368bf7 33 * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved.
931d4160
EG		 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
ee7bea58
EG		 64#include <linux/ieee80211.h>
65#include <linux/etherdevice.h>
2b76ef13
EG		 66#include <net/mac80211.h>
67
5b7ff615 68#include "fw-api-coex.h"
931d4160
EG		 69#include "iwl-modparams.h"
70#include "mvm.h"
f421f9c3 71#include "iwl-debug.h"
931d4160
EG		 72
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))
76
77static 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),
98 0, 0, 0, 0, 0, 0,
99};
100
101#undef EVENT_PRIO_ANT
102
2b76ef13
EG		 103#define BT_ENABLE_REDUCED_TXPOWER_THRESHOLD (-62)
104#define BT_DISABLE_REDUCED_TXPOWER_THRESHOLD (-65)
dac94da8 105#define BT_ANTENNA_COUPLING_THRESHOLD (30)
2b76ef13 106
ae397472 107static int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm)
931d4160 108{
a39979a8
EG		 109 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
110 return 0;
111
a1022927 112 return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, 0,
931d4160
EG		 113 sizeof(struct iwl_bt_coex_prio_tbl_cmd),
114 &iwl_bt_prio_tbl);
115}
116
2de13cae 117const u32 iwl_bt_ack_kill_msk[BT_KILL_MSK_MAX] = {
5b7e662b
EG		 118 [BT_KILL_MSK_DEFAULT] = 0xffff0000,
119 [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff,
120 [BT_KILL_MSK_REDUCED_TXPOW] = 0,
931d4160
EG		 121};
122
2de13cae 123const u32 iwl_bt_cts_kill_msk[BT_KILL_MSK_MAX] = {
5b7e662b
EG		 124 [BT_KILL_MSK_DEFAULT] = 0xffff0000,
125 [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff,
126 [BT_KILL_MSK_REDUCED_TXPOW] = 0,
931d4160
EG		 127};
128
dac94da8 129static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = {
2adc8949
EG		 130 cpu_to_le32(0xf0f0f0f0), /* 50% */
131 cpu_to_le32(0xc0c0c0c0), /* 25% */
132 cpu_to_le32(0xfcfcfcfc), /* 75% */
133 cpu_to_le32(0xfefefefe), /* 87.5% */
931d4160
EG		 134};
135
d1d5e3cd
EG		 136static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
137 {
138 cpu_to_le32(0x40000000),
139 cpu_to_le32(0x00000000),
140 cpu_to_le32(0x44000000),
141 cpu_to_le32(0x00000000),
142 cpu_to_le32(0x40000000),
143 cpu_to_le32(0x00000000),
144 cpu_to_le32(0x44000000),
145 cpu_to_le32(0x00000000),
146 cpu_to_le32(0xc0004000),
147 cpu_to_le32(0xf0005000),
148 cpu_to_le32(0xc0004000),
149 cpu_to_le32(0xf0005000),
150 },
151 {
152 cpu_to_le32(0x40000000),
153 cpu_to_le32(0x00000000),
154 cpu_to_le32(0x44000000),
155 cpu_to_le32(0x00000000),
156 cpu_to_le32(0x40000000),
157 cpu_to_le32(0x00000000),
158 cpu_to_le32(0x44000000),
159 cpu_to_le32(0x00000000),
160 cpu_to_le32(0xc0004000),
161 cpu_to_le32(0xf0005000),
162 cpu_to_le32(0xc0004000),
163 cpu_to_le32(0xf0005000),
164 },
165 {
166 cpu_to_le32(0x40000000),
167 cpu_to_le32(0x00000000),
168 cpu_to_le32(0x44000000),
169 cpu_to_le32(0x00000000),
170 cpu_to_le32(0x40000000),
171 cpu_to_le32(0x00000000),
172 cpu_to_le32(0x44000000),
173 cpu_to_le32(0x00000000),
174 cpu_to_le32(0xc0004000),
175 cpu_to_le32(0xf0005000),
176 cpu_to_le32(0xc0004000),
177 cpu_to_le32(0xf0005000),
178 },
179};
180
dac94da8
EG		 181static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
182 {
183 /* Tight */
184 cpu_to_le32(0xaaaaaaaa),
185 cpu_to_le32(0xaaaaaaaa),
186 cpu_to_le32(0xaeaaaaaa),
187 cpu_to_le32(0xaaaaaaaa),
188 cpu_to_le32(0xcc00ff28),
189 cpu_to_le32(0x0000aaaa),
190 cpu_to_le32(0xcc00aaaa),
191 cpu_to_le32(0x0000aaaa),
192 cpu_to_le32(0xc0004000),
a6bc9280 193 cpu_to_le32(0x00004000),
dac94da8
EG		 194 cpu_to_le32(0xf0005000),
195 cpu_to_le32(0xf0005000),
196 },
197 {
198 /* Loose */
199 cpu_to_le32(0xaaaaaaaa),
200 cpu_to_le32(0xaaaaaaaa),
201 cpu_to_le32(0xaaaaaaaa),
202 cpu_to_le32(0xaaaaaaaa),
203 cpu_to_le32(0xcc00ff28),
204 cpu_to_le32(0x0000aaaa),
205 cpu_to_le32(0xcc00aaaa),
206 cpu_to_le32(0x0000aaaa),
207 cpu_to_le32(0x00000000),
208 cpu_to_le32(0x00000000),
209 cpu_to_le32(0xf0005000),
210 cpu_to_le32(0xf0005000),
211 },
212 {
213 /* Tx Tx disabled */
214 cpu_to_le32(0xaaaaaaaa),
215 cpu_to_le32(0xaaaaaaaa),
a6bc9280 216 cpu_to_le32(0xeeaaaaaa),
dac94da8
EG		 217 cpu_to_le32(0xaaaaaaaa),
218 cpu_to_le32(0xcc00ff28),
219 cpu_to_le32(0x0000aaaa),
220 cpu_to_le32(0xcc00aaaa),
221 cpu_to_le32(0x0000aaaa),
a6bc9280
EG		 222 cpu_to_le32(0xc0004000),
223 cpu_to_le32(0xc0004000),
224 cpu_to_le32(0xf0005000),
225 cpu_to_le32(0xf0005000),
dac94da8 226 },
931d4160
EG		 227};
228
dac94da8
EG		 229/* 20MHz / 40MHz below / 40Mhz above*/
230static const __le64 iwl_ci_mask[][3] = {
231 /* dummy entry for channel 0 */
232 {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
233 {
234 cpu_to_le64(0x0000001FFFULL),
235 cpu_to_le64(0x0ULL),
236 cpu_to_le64(0x00007FFFFFULL),
237 },
238 {
239 cpu_to_le64(0x000000FFFFULL),
240 cpu_to_le64(0x0ULL),
241 cpu_to_le64(0x0003FFFFFFULL),
242 },
243 {
244 cpu_to_le64(0x000003FFFCULL),
245 cpu_to_le64(0x0ULL),
246 cpu_to_le64(0x000FFFFFFCULL),
247 },
248 {
249 cpu_to_le64(0x00001FFFE0ULL),
250 cpu_to_le64(0x0ULL),
251 cpu_to_le64(0x007FFFFFE0ULL),
252 },
253 {
254 cpu_to_le64(0x00007FFF80ULL),
255 cpu_to_le64(0x00007FFFFFULL),
256 cpu_to_le64(0x01FFFFFF80ULL),
257 },
258 {
259 cpu_to_le64(0x0003FFFC00ULL),
260 cpu_to_le64(0x0003FFFFFFULL),
261 cpu_to_le64(0x0FFFFFFC00ULL),
262 },
263 {
264 cpu_to_le64(0x000FFFF000ULL),
265 cpu_to_le64(0x000FFFFFFCULL),
266 cpu_to_le64(0x3FFFFFF000ULL),
267 },
268 {
269 cpu_to_le64(0x007FFF8000ULL),
270 cpu_to_le64(0x007FFFFFE0ULL),
271 cpu_to_le64(0xFFFFFF8000ULL),
272 },
273 {
274 cpu_to_le64(0x01FFFE0000ULL),
275 cpu_to_le64(0x01FFFFFF80ULL),
276 cpu_to_le64(0xFFFFFE0000ULL),
277 },
278 {
279 cpu_to_le64(0x0FFFF00000ULL),
280 cpu_to_le64(0x0FFFFFFC00ULL),
281 cpu_to_le64(0x0ULL),
282 },
283 {
284 cpu_to_le64(0x3FFFC00000ULL),
285 cpu_to_le64(0x3FFFFFF000ULL),
286 cpu_to_le64(0x0)
287 },
288 {
289 cpu_to_le64(0xFFFE000000ULL),
290 cpu_to_le64(0xFFFFFF8000ULL),
291 cpu_to_le64(0x0)
292 },
293 {
294 cpu_to_le64(0xFFF8000000ULL),
295 cpu_to_le64(0xFFFFFE0000ULL),
296 cpu_to_le64(0x0)
297 },
298 {
d2ccc902 299 cpu_to_le64(0xFFC0000000ULL),
dac94da8 300 cpu_to_le64(0x0ULL),
d2ccc902 301 cpu_to_le64(0x0ULL)
dac94da8 302 },
931d4160
EG		 303};
304
dac94da8 305static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = {
2adc8949
EG		 306 cpu_to_le32(0x28412201),
307 cpu_to_le32(0x11118451),
e715c3a9
EG		 308};
309
b9fae2d5
EG		 310struct corunning_block_luts {
311 u8 range;
312 __le32 lut20[BT_COEX_CORUN_LUT_SIZE];
313};
314
315/*
316 * Ranges for the antenna coupling calibration / co-running block LUT:
317 * LUT0: [ 0, 12[
318 * LUT1: [12, 20[
319 * LUT2: [20, 21[
320 * LUT3: [21, 23[
321 * LUT4: [23, 27[
322 * LUT5: [27, 30[
323 * LUT6: [30, 32[
324 * LUT7: [32, 33[
325 * LUT8: [33, - [
326 */
327static const struct corunning_block_luts antenna_coupling_ranges[] = {
328 {
329 .range = 0,
330 .lut20 = {
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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
346 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
347 },
348 },
349 {
350 .range = 12,
351 .lut20 = {
352 cpu_to_le32(0x00000001), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
367 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
368 },
369 },
370 {
371 .range = 20,
372 .lut20 = {
373 cpu_to_le32(0x00000002), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
388 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
389 },
390 },
391 {
392 .range = 21,
393 .lut20 = {
394 cpu_to_le32(0x00000003), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
409 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
410 },
411 },
412 {
413 .range = 23,
414 .lut20 = {
415 cpu_to_le32(0x00000004), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
430 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
431 },
432 },
433 {
434 .range = 27,
435 .lut20 = {
436 cpu_to_le32(0x00000005), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
451 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
452 },
453 },
454 {
455 .range = 30,
456 .lut20 = {
457 cpu_to_le32(0x00000006), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
472 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
473 },
474 },
475 {
476 .range = 32,
477 .lut20 = {
478 cpu_to_le32(0x00000007), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
493 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
494 },
495 },
496 {
497 .range = 33,
498 .lut20 = {
499 cpu_to_le32(0x00000008), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
514 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
515 },
516 },
517};
518
4515f30f
EG		 519static enum iwl_bt_coex_lut_type
520iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
521{
522 struct ieee80211_chanctx_conf *chanctx_conf;
523 enum iwl_bt_coex_lut_type ret;
524 u16 phy_ctx_id;
525
9145d151
EG		 526 /*
527 * Checking that we hold mvm->mutex is a good idea, but the rate
528 * control can't acquire the mutex since it runs in Tx path.
529 * So this is racy in that case, but in the worst case, the AMPDU
530 * size limit will be wrong for a short time which is not a big
531 * issue.
532 */
4515f30f
EG		 533
534 rcu_read_lock();
535
536 chanctx_conf = rcu_dereference(vif->chanctx_conf);
537
538 if (!chanctx_conf ||
539 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
540 rcu_read_unlock();
7fa4fa0c 541 return BT_COEX_INVALID_LUT;
4515f30f
EG		 542 }
543
544 ret = BT_COEX_TX_DIS_LUT;
545
39149911
EG		 546 if (mvm->cfg->bt_shared_single_ant) {
547 rcu_read_unlock();
548 return ret;
549 }
550
4515f30f
EG		 551 phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
552
553 if (mvm->last_bt_ci_cmd.primary_ch_phy_id == phy_ctx_id)
554 ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut);
555 else if (mvm->last_bt_ci_cmd.secondary_ch_phy_id == phy_ctx_id)
556 ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut);
557 /* else - default = TX TX disallowed */
558
559 rcu_read_unlock();
560
561 return ret;
562}
563
931d4160
EG		 564int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
565{
03e304e4
EG		 566 struct iwl_bt_coex_cmd *bt_cmd;
567 struct iwl_host_cmd cmd = {
568 .id = BT_CONFIG,
569 .len = { sizeof(*bt_cmd), },
570 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
931d4160
EG		 571 };
572 int ret;
dac94da8
EG		 573 u32 flags;
574
ae397472
EG		 575 ret = iwl_send_bt_prio_tbl(mvm);
576 if (ret)
577 return ret;
578
03e304e4
EG		 579 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
580 if (!bt_cmd)
581 return -ENOMEM;
582 cmd.data[0] = bt_cmd;
583
a39979a8
EG		 584 lockdep_assert_held(&mvm->mutex);
585
586 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) {
587 switch (mvm->bt_force_ant_mode) {
588 case BT_FORCE_ANT_AUTO:
589 flags = BT_COEX_AUTO;
590 break;
591 case BT_FORCE_ANT_BT:
592 flags = BT_COEX_BT;
593 break;
594 case BT_FORCE_ANT_WIFI:
595 flags = BT_COEX_WIFI;
596 break;
597 default:
598 WARN_ON(1);
599 flags = 0;
600 }
601
602 bt_cmd->flags = cpu_to_le32(flags);
603 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE);
604 goto send_cmd;
605 }
606
03e304e4 607 bt_cmd->max_kill = 5;
8a0063a0
EG		 608 bt_cmd->bt4_antenna_isolation_thr = BT_ANTENNA_COUPLING_THRESHOLD;
609 bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling;
610 bt_cmd->bt4_tx_tx_delta_freq_thr = 15;
611 bt_cmd->bt4_tx_rx_max_freq0 = 15;
e78973ef
EG		 612 bt_cmd->override_primary_lut = BT_COEX_INVALID_LUT;
613 bt_cmd->override_secondary_lut = BT_COEX_INVALID_LUT;
03e304e4 614
dac94da8 615 flags = iwlwifi_mod_params.bt_coex_active ?
931d4160 616 BT_COEX_NW : BT_COEX_DISABLE;
dac94da8 617 bt_cmd->flags = cpu_to_le32(flags);
931d4160 618
dac94da8 619 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE |
03e304e4
EG		 620 BT_VALID_BT_PRIO_BOOST |
621 BT_VALID_MAX_KILL |
622 BT_VALID_3W_TMRS |
623 BT_VALID_KILL_ACK |
624 BT_VALID_KILL_CTS |
625 BT_VALID_REDUCED_TX_POWER |
dac94da8
EG		 626 BT_VALID_LUT |
627 BT_VALID_WIFI_RX_SW_PRIO_BOOST |
628 BT_VALID_WIFI_TX_SW_PRIO_BOOST |
dac94da8
EG		 629 BT_VALID_ANT_ISOLATION |
630 BT_VALID_ANT_ISOLATION_THRS |
631 BT_VALID_TXTX_DELTA_FREQ_THRS |
b9c509cc
EG		 632 BT_VALID_TXRX_MAX_FREQ_0 |
633 BT_VALID_SYNC_TO_SCO);
dac94da8 634
741e703b
EG		 635 if (IWL_MVM_BT_COEX_SYNC2SCO)
636 bt_cmd->flags |= cpu_to_le32(BT_COEX_SYNC2SCO);
637
b9fae2d5 638 if (IWL_MVM_BT_COEX_CORUNNING) {
0fed2bcf
EG		 639 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_CORUN_LUT_20 |
640 BT_VALID_CORUN_LUT_40);
b9fae2d5
EG		 641 bt_cmd->flags |= cpu_to_le32(BT_COEX_CORUNNING);
642 }
643
cdb00563
EG		 644 if (IWL_MVM_BT_COEX_MPLUT) {
645 bt_cmd->flags |= cpu_to_le32(BT_COEX_MPLUT);
0fed2bcf 646 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_MULTI_PRIO_LUT);
cdb00563
EG		 647 }
648
d1d5e3cd
EG		 649 if (mvm->cfg->bt_shared_single_ant)
650 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant,
651 sizeof(iwl_single_shared_ant));
652 else
653 memcpy(&bt_cmd->decision_lut, iwl_combined_lookup,
654 sizeof(iwl_combined_lookup));
655
b9fae2d5
EG		 656 /* Take first Co-running block LUT to get started */
657 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[0].lut20,
658 sizeof(bt_cmd->bt4_corun_lut20));
659 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[0].lut20,
660 sizeof(bt_cmd->bt4_corun_lut40));
661
dac94da8
EG		 662 memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost,
663 sizeof(iwl_bt_prio_boost));
664 memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut,
665 sizeof(iwl_bt_mprio_lut));
03e304e4 666 bt_cmd->kill_ack_msk =
931d4160 667 cpu_to_le32(iwl_bt_ack_kill_msk[BT_KILL_MSK_DEFAULT]);
03e304e4 668 bt_cmd->kill_cts_msk =
931d4160
EG		 669 cpu_to_le32(iwl_bt_cts_kill_msk[BT_KILL_MSK_DEFAULT]);
670
a39979a8 671send_cmd:
2b76ef13 672 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
dac94da8 673 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
2b76ef13 674
03e304e4 675 ret = iwl_mvm_send_cmd(mvm, &cmd);
931d4160 676
03e304e4
EG		 677 kfree(bt_cmd);
678 return ret;
931d4160 679}
f421f9c3 680
2b76ef13
EG		 681static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm,
682 bool reduced_tx_power)
683{
684 enum iwl_bt_kill_msk bt_kill_msk;
03e304e4 685 struct iwl_bt_coex_cmd *bt_cmd;
2b76ef13 686 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
03e304e4
EG		 687 struct iwl_host_cmd cmd = {
688 .id = BT_CONFIG,
689 .data[0] = &bt_cmd,
690 .len = { sizeof(*bt_cmd), },
691 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
03e304e4
EG		 692 };
693 int ret = 0;
2b76ef13
EG		 694
695 lockdep_assert_held(&mvm->mutex);
696
697 if (reduced_tx_power) {
698 /* Reduced Tx power has precedence on the type of the profile */
699 bt_kill_msk = BT_KILL_MSK_REDUCED_TXPOW;
700 } else {
701 /* Low latency BT profile is active: give higher prio to BT */
702 if (BT_MBOX_MSG(notif, 3, SCO_STATE) ||
703 BT_MBOX_MSG(notif, 3, A2DP_STATE) ||
704 BT_MBOX_MSG(notif, 3, SNIFF_STATE))
705 bt_kill_msk = BT_KILL_MSK_SCO_HID_A2DP;
706 else
707 bt_kill_msk = BT_KILL_MSK_DEFAULT;
708 }
709
710 IWL_DEBUG_COEX(mvm,
711 "Update kill_msk: %d - SCO %sactive A2DP %sactive SNIFF %sactive\n",
712 bt_kill_msk,
713 BT_MBOX_MSG(notif, 3, SCO_STATE) ? "" : "in",
714 BT_MBOX_MSG(notif, 3, A2DP_STATE) ? "" : "in",
715 BT_MBOX_MSG(notif, 3, SNIFF_STATE) ? "" : "in");
716
717 /* Don't send HCMD if there is no update */
718 if (bt_kill_msk == mvm->bt_kill_msk)
719 return 0;
720
721 mvm->bt_kill_msk = bt_kill_msk;
03e304e4
EG		 722
723 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
724 if (!bt_cmd)
725 return -ENOMEM;
726 cmd.data[0] = bt_cmd;
7352cac0 727 bt_cmd->flags = cpu_to_le32(BT_COEX_NW);
03e304e4
EG		 728
729 bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ack_kill_msk[bt_kill_msk]);
730 bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_cts_kill_msk[bt_kill_msk]);
7352cac0
EG		 731 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
732 BT_VALID_KILL_ACK |
733 BT_VALID_KILL_CTS);
2b76ef13 734
dac94da8
EG		 735 IWL_DEBUG_COEX(mvm, "ACK Kill msk = 0x%08x, CTS Kill msk = 0x%08x\n",
736 iwl_bt_ack_kill_msk[bt_kill_msk],
737 iwl_bt_cts_kill_msk[bt_kill_msk]);
03e304e4
EG		 738
739 ret = iwl_mvm_send_cmd(mvm, &cmd);
740
741 kfree(bt_cmd);
742 return ret;
2b76ef13
EG		 743}
744
1fa477c6
EG		 745static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
746 bool enable)
2b76ef13 747{
03e304e4
EG		 748 struct iwl_bt_coex_cmd *bt_cmd;
749 /* Send ASYNC since this can be sent from an atomic context */
750 struct iwl_host_cmd cmd = {
751 .id = BT_CONFIG,
752 .len = { sizeof(*bt_cmd), },
b9fae2d5 753 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
03e304e4 754 .flags = CMD_ASYNC,
2b76ef13 755 };
2b76ef13 756 struct iwl_mvm_sta *mvmsta;
03e304e4 757 int ret;
2b76ef13 758
f327b04c
EG		 759 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
760 if (!mvmsta)
2b76ef13
EG		 761 return 0;
762
2b76ef13 763 /* nothing to do */
1fa477c6 764 if (mvmsta->bt_reduced_txpower == enable)
2b76ef13
EG		 765 return 0;
766
03e304e4
EG		 767 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC);
768 if (!bt_cmd)
769 return -ENOMEM;
770 cmd.data[0] = bt_cmd;
7352cac0 771 bt_cmd->flags = cpu_to_le32(BT_COEX_NW);
03e304e4 772
7352cac0
EG		 773 bt_cmd->valid_bit_msk =
774 cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER);
03e304e4
EG		 775 bt_cmd->bt_reduced_tx_power = sta_id;
776
2b76ef13 777 if (enable)
03e304e4 778 bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT;
2b76ef13
EG		 779
780 IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
781 enable ? "en" : "dis", sta_id);
782
783 mvmsta->bt_reduced_txpower = enable;
784
03e304e4
EG		 785 ret = iwl_mvm_send_cmd(mvm, &cmd);
786
787 kfree(bt_cmd);
788 return ret;
2b76ef13
EG		 789}
790
791struct iwl_bt_iterator_data {
7da052b8 792 struct iwl_bt_coex_profile_notif *notif;
2b76ef13
EG		 793 struct iwl_mvm *mvm;
794 u32 num_bss_ifaces;
9e511c31 795 bool reduced_tx_power;
dac94da8
EG		 796 struct ieee80211_chanctx_conf *primary;
797 struct ieee80211_chanctx_conf *secondary;
0ee5bcdd 798 bool primary_ll;
7da052b8
EG		 799};
800
f6fc5775
EG		 801static inline
802void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
803 struct ieee80211_vif *vif,
804 bool enable, int rssi)
805{
806 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
807
808 mvmvif->bf_data.last_bt_coex_event = rssi;
809 mvmvif->bf_data.bt_coex_max_thold =
810 enable ? BT_ENABLE_REDUCED_TXPOWER_THRESHOLD : 0;
811 mvmvif->bf_data.bt_coex_min_thold =
812 enable ? BT_DISABLE_REDUCED_TXPOWER_THRESHOLD : 0;
813}
814
dac94da8 815/* must be called under rcu_read_lock */
7da052b8
EG		 816static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
817 struct ieee80211_vif *vif)
818{
819 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2b76ef13
EG		 820 struct iwl_bt_iterator_data *data = _data;
821 struct iwl_mvm *mvm = data->mvm;
7da052b8
EG		 822 struct ieee80211_chanctx_conf *chanctx_conf;
823 enum ieee80211_smps_mode smps_mode;
f6415f6b 824 u32 bt_activity_grading;
2b76ef13 825 int ave_rssi;
7da052b8 826
9ee718aa 827 lockdep_assert_held(&mvm->mutex);
7da052b8 828
f6415f6b
EG		 829 switch (vif->type) {
830 case NL80211_IFTYPE_STATION:
4d66449a
EG		 831 /* Count BSSes vifs */
832 data->num_bss_ifaces++;
f6415f6b
EG		 833 /* default smps_mode for BSS / P2P client is AUTOMATIC */
834 smps_mode = IEEE80211_SMPS_AUTOMATIC;
f6415f6b
EG		 835 break;
836 case NL80211_IFTYPE_AP:
837 /* default smps_mode for AP / GO is OFF */
838 smps_mode = IEEE80211_SMPS_OFF;
839 if (!mvmvif->ap_ibss_active) {
840 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
841 smps_mode);
842 return;
843 }
7da052b8 844
f6415f6b
EG		 845 /* the Ack / Cts kill mask must be default if AP / GO */
846 data->reduced_tx_power = false;
847 break;
848 default:
849 return;
850 }
7da052b8 851
dac94da8
EG		 852 chanctx_conf = rcu_dereference(vif->chanctx_conf);
853
854 /* If channel context is invalid or not on 2.4GHz .. */
855 if ((!chanctx_conf ||
856 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) {
f6415f6b
EG		 857 /* ... relax constraints and disable rssi events */
858 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
859 smps_mode);
4d66449a 860 data->reduced_tx_power = false;
0f618e6e
EG		 861 if (vif->type == NL80211_IFTYPE_STATION) {
862 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
863 false);
f6415f6b 864 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
0f618e6e 865 }
41069b46 866 return;
dac94da8
EG		 867 }
868
f6415f6b
EG		 869 bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
870 if (bt_activity_grading >= BT_HIGH_TRAFFIC)
871 smps_mode = IEEE80211_SMPS_STATIC;
872 else if (bt_activity_grading >= BT_LOW_TRAFFIC)
873 smps_mode = vif->type == NL80211_IFTYPE_AP ?
874 IEEE80211_SMPS_OFF :
875 IEEE80211_SMPS_DYNAMIC;
4d66449a
EG		 876
877 /* relax SMPS contraints for next association */
878 if (!vif->bss_conf.assoc)
879 smps_mode = IEEE80211_SMPS_AUTOMATIC;
880
f6415f6b
EG		 881 IWL_DEBUG_COEX(data->mvm,
882 "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n",
883 mvmvif->id, data->notif->bt_status, bt_activity_grading,
884 smps_mode);
885
886 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, smps_mode);
887
0ee5bcdd
EG		 888 /* low latency is always primary */
889 if (iwl_mvm_vif_low_latency(mvmvif)) {
890 data->primary_ll = true;
891
892 data->secondary = data->primary;
893 data->primary = chanctx_conf;
894 }
895
dac94da8 896 if (vif->type == NL80211_IFTYPE_AP) {
5023d966 897 if (!mvmvif->ap_ibss_active)
dac94da8
EG		 898 return;
899
dac94da8
EG		 900 if (chanctx_conf == data->primary)
901 return;
902
0ee5bcdd
EG		 903 if (!data->primary_ll) {
904 /*
905 * downgrade the current primary no matter what its
906 * type is.
907 */
908 data->secondary = data->primary;
909 data->primary = chanctx_conf;
910 } else {
911 /* there is low latency vif - we will be secondary */
912 data->secondary = chanctx_conf;
913 }
9166b1ee
EG		 914 return;
915 }
916
0ee5bcdd
EG		 917 /*
918 * STA / P2P Client, try to be primary if first vif. If we are in low
919 * latency mode, we are already in primary and just don't do much
920 */
dac94da8
EG		 921 if (!data->primary || data->primary == chanctx_conf)
922 data->primary = chanctx_conf;
923 else if (!data->secondary)
924 /* if secondary is not NULL, it might be a GO */
925 data->secondary = chanctx_conf;
926
4d66449a
EG		 927 /*
928 * don't reduce the Tx power if one of these is true:
929 * we are in LOOSE
930 * single share antenna product
931 * BT is active
932 * we are associated
933 */
39149911 934 if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
4d66449a
EG		 935 mvm->cfg->bt_shared_single_ant || !vif->bss_conf.assoc ||
936 !data->notif->bt_status) {
39149911 937 data->reduced_tx_power = false;
0f618e6e 938 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false);
f6fc5775 939 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
2b76ef13 940 return;
39149911 941 }
2b76ef13 942
911222b5
AO		 943 /* try to get the avg rssi from fw */
944 ave_rssi = mvmvif->bf_data.ave_beacon_signal;
2b76ef13
EG		 945
946 /* if the RSSI isn't valid, fake it is very low */
947 if (!ave_rssi)
948 ave_rssi = -100;
949 if (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) {
950 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true))
951 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
952
953 /*
954 * bt_kill_msk can be BT_KILL_MSK_REDUCED_TXPOW only if all the
955 * BSS / P2P clients have rssi above threshold.
956 * We set the bt_kill_msk to BT_KILL_MSK_REDUCED_TXPOW before
957 * the iteration, if one interface's rssi isn't good enough,
958 * bt_kill_msk will be set to default values.
959 */
960 } else if (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) {
961 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
962 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
963
964 /*
965 * One interface hasn't rssi above threshold, bt_kill_msk must
966 * be set to default values.
967 */
9e511c31 968 data->reduced_tx_power = false;
2b76ef13
EG		 969 }
970
971 /* Begin to monitor the RSSI: it may influence the reduced Tx power */
f6fc5775 972 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
7da052b8
EG		 973}
974
d37cac98 975static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
f421f9c3 976{
2b76ef13 977 struct iwl_bt_iterator_data data = {
7da052b8 978 .mvm = mvm,
d37cac98 979 .notif = &mvm->last_bt_notif,
9e511c31 980 .reduced_tx_power = true,
7da052b8 981 };
dac94da8
EG		 982 struct iwl_bt_coex_ci_cmd cmd = {};
983 u8 ci_bw_idx;
f421f9c3 984
a39979a8
EG		 985 /* Ignore updates if we are in force mode */
986 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
987 return;
988
dac94da8 989 rcu_read_lock();
7da052b8
EG		 990 ieee80211_iterate_active_interfaces_atomic(
991 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
992 iwl_mvm_bt_notif_iterator, &data);
993
dac94da8
EG		 994 if (data.primary) {
995 struct ieee80211_chanctx_conf *chan = data.primary;
996 if (WARN_ON(!chan->def.chan)) {
997 rcu_read_unlock();
998 return;
999 }
1000
1001 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
1002 ci_bw_idx = 0;
1003 cmd.co_run_bw_primary = 0;
1004 } else {
1005 cmd.co_run_bw_primary = 1;
1006 if (chan->def.center_freq1 >
1007 chan->def.chan->center_freq)
1008 ci_bw_idx = 2;
1009 else
1010 ci_bw_idx = 1;
1011 }
1012
1013 cmd.bt_primary_ci =
1014 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
1015 cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv);
1016 }
1017
1018 if (data.secondary) {
1019 struct ieee80211_chanctx_conf *chan = data.secondary;
1020 if (WARN_ON(!data.secondary->def.chan)) {
1021 rcu_read_unlock();
1022 return;
1023 }
1024
1025 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
1026 ci_bw_idx = 0;
1027 cmd.co_run_bw_secondary = 0;
1028 } else {
1029 cmd.co_run_bw_secondary = 1;
1030 if (chan->def.center_freq1 >
1031 chan->def.chan->center_freq)
1032 ci_bw_idx = 2;
1033 else
1034 ci_bw_idx = 1;
1035 }
1036
1037 cmd.bt_secondary_ci =
1038 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
c92f06a1 1039 cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv);
dac94da8
EG		 1040 }
1041
1042 rcu_read_unlock();
1043
1044 /* Don't spam the fw with the same command over and over */
1045 if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) {
a1022927 1046 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0,
dac94da8 1047 sizeof(cmd), &cmd))
3c6acb61 1048 IWL_ERR(mvm, "Failed to send BT_CI cmd\n");
dac94da8
EG		 1049 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd));
1050 }
1051
2b76ef13
EG		 1052 /*
1053 * If there are no BSS / P2P client interfaces, reduced Tx Power is
1054 * irrelevant since it is based on the RSSI coming from the beacon.
1055 * Use BT_KILL_MSK_DEFAULT in that case.
1056 */
9e511c31 1057 data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces;
2b76ef13 1058
9e511c31 1059 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power))
2b76ef13 1060 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
9166b1ee
EG		 1061}
1062
9166b1ee
EG		 1063int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
1064 struct iwl_rx_cmd_buffer *rxb,
1065 struct iwl_device_cmd *dev_cmd)
1066{
1067 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1068 struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data;
1069
1070
1071 IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
dac94da8
EG		 1072 IWL_DEBUG_COEX(mvm, "\tBT status: %s\n",
1073 notif->bt_status ? "ON" : "OFF");
9166b1ee 1074 IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn);
dac94da8
EG		 1075 IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
1076 IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
1077 le32_to_cpu(notif->primary_ch_lut));
1078 IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
1079 le32_to_cpu(notif->secondary_ch_lut));
1080 IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
1081 le32_to_cpu(notif->bt_activity_grading));
9166b1ee
EG		 1082 IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n",
1083 notif->bt_agg_traffic_load);
9166b1ee 1084
d37cac98
EG		 1085 /* remember this notification for future use: rssi fluctuations */
1086 memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif));
1087
1088 iwl_mvm_bt_coex_notif_handle(mvm);
2b76ef13
EG		 1089
1090 /*
1091 * This is an async handler for a notification, returning anything other
1092 * than 0 doesn't make sense even if HCMD failed.
1093 */
1094 return 0;
1095}
1096
1097static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
1098 struct ieee80211_vif *vif)
1099{
1100 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1101 struct iwl_bt_iterator_data *data = _data;
1102 struct iwl_mvm *mvm = data->mvm;
1103
1104 struct ieee80211_sta *sta;
1105 struct iwl_mvm_sta *mvmsta;
1106
f6fc5775
EG		 1107 struct ieee80211_chanctx_conf *chanctx_conf;
1108
1109 rcu_read_lock();
1110 chanctx_conf = rcu_dereference(vif->chanctx_conf);
1111 /* If channel context is invalid or not on 2.4GHz - don't count it */
1112 if (!chanctx_conf ||
1113 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
1114 rcu_read_unlock();
1115 return;
1116 }
1117 rcu_read_unlock();
1118
2b76ef13
EG		 1119 if (vif->type != NL80211_IFTYPE_STATION ||
1120 mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1121 return;
1122
1123 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1124 lockdep_is_held(&mvm->mutex));
56c07a9c
EG		 1125
1126 /* This can happen if the station has been removed right now */
1127 if (IS_ERR_OR_NULL(sta))
1128 return;
1129
5b577a90 1130 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2b76ef13 1131
8e0366f9
EG		 1132 data->num_bss_ifaces++;
1133
2b76ef13
EG		 1134 /*
1135 * This interface doesn't support reduced Tx power (because of low
1136 * RSSI probably), then set bt_kill_msk to default values.
1137 */
1138 if (!mvmsta->bt_reduced_txpower)
9e511c31 1139 data->reduced_tx_power = false;
2b76ef13
EG		 1140 /* else - possibly leave it to BT_KILL_MSK_REDUCED_TXPOW */
1141}
1142
1143void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1144 enum ieee80211_rssi_event rssi_event)
1145{
1146 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
2b76ef13
EG		 1147 struct iwl_bt_iterator_data data = {
1148 .mvm = mvm,
9e511c31 1149 .reduced_tx_power = true,
2b76ef13
EG		 1150 };
1151 int ret;
1152
3dd1cd2d 1153 lockdep_assert_held(&mvm->mutex);
2b76ef13 1154
a39979a8
EG		 1155 /* Ignore updates if we are in force mode */
1156 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1157 return;
1158
1e929199
EG		 1159 /*
1160 * Rssi update while not associated - can happen since the statistics
1161 * are handled asynchronously
1162 */
1163 if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
3dd1cd2d 1164 return;
2b76ef13 1165
4515f30f 1166 /* No BT - reports should be disabled */
0af8835e 1167 if (!mvm->last_bt_notif.bt_status)
3dd1cd2d 1168 return;
2b76ef13
EG		 1169
1170 IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
1171 rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
1172
1173 /*
1174 * Check if rssi is good enough for reduced Tx power, but not in loose
1175 * scheme.
1176 */
39149911 1177 if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
4515f30f 1178 iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
2b76ef13
EG		 1179 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
1180 false);
f421f9c3 1181 else
2b76ef13 1182 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true);
f421f9c3 1183
2b76ef13
EG		 1184 if (ret)
1185 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
f421f9c3 1186
2b76ef13
EG		 1187 ieee80211_iterate_active_interfaces_atomic(
1188 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1189 iwl_mvm_bt_rssi_iterator, &data);
f421f9c3 1190
2b76ef13
EG		 1191 /*
1192 * If there are no BSS / P2P client interfaces, reduced Tx Power is
1193 * irrelevant since it is based on the RSSI coming from the beacon.
1194 * Use BT_KILL_MSK_DEFAULT in that case.
1195 */
9e511c31 1196 data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces;
f421f9c3 1197
9e511c31 1198 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power))
2b76ef13 1199 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
f421f9c3 1200}
9166b1ee 1201
9145d151
EG		 1202#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000)
1203#define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
1204
5b7ff615
EG		 1205u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm,
1206 struct ieee80211_sta *sta)
9145d151 1207{
5b577a90 1208 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
9145d151
EG		 1209 enum iwl_bt_coex_lut_type lut_type;
1210
1211 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
c2119351 1212 BT_HIGH_TRAFFIC)
9145d151
EG		 1213 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1214
35fbf5d0
EG		 1215 if (mvm->last_bt_notif.ttc_enabled)
1216 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1217
9145d151
EG		 1218 lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1219
7fa4fa0c 1220 if (lut_type == BT_COEX_LOOSE_LUT || lut_type == BT_COEX_INVALID_LUT)
9145d151
EG		 1221 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1222
1223 /* tight coex, high bt traffic, reduce AGG time limit */
1224 return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
1225}
1226
ffa6c707
EG		 1227bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
1228 struct ieee80211_sta *sta)
1229{
5b577a90 1230 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
7fa4fa0c 1231 enum iwl_bt_coex_lut_type lut_type;
ffa6c707 1232
35fbf5d0
EG		 1233 if (mvm->last_bt_notif.ttc_enabled)
1234 return true;
1235
ffa6c707
EG		 1236 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
1237 BT_HIGH_TRAFFIC)
1238 return true;
1239
1240 /*
7fa4fa0c
EG		 1241 * In Tight / TxTxDis, BT can't Rx while we Tx, so use both antennas
1242 * since BT is already killed.
1243 * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while
1244 * we Tx.
1245 * When we are in 5GHz, we'll get BT_COEX_INVALID_LUT allowing MIMO.
ffa6c707 1246 */
7fa4fa0c
EG		 1247 lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1248 return lut_type != BT_COEX_LOOSE_LUT;
ffa6c707
EG		 1249}
1250
2fd647f8
EP		 1251bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm,
1252 enum ieee80211_band band)
1253{
1254 u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading);
1255
1256 if (band != IEEE80211_BAND_2GHZ)
1257 return false;
1258
1259 return bt_activity >= BT_LOW_TRAFFIC;
1260}
1261
ee7bea58 1262u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
b797e3fb 1263 struct ieee80211_tx_info *info, u8 ac)
ee7bea58
EG		 1264{
1265 __le16 fc = hdr->frame_control;
1266
b797e3fb
EG		 1267 if (info->band != IEEE80211_BAND_2GHZ)
1268 return 0;
1269
cdb00563
EG		 1270 if (unlikely(mvm->bt_tx_prio))
1271 return mvm->bt_tx_prio - 1;
1272
ee7bea58 1273 /* High prio packet (wrt. BT coex) if it is EAPOL, MCAST or MGMT */
b797e3fb 1274 if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO ||
ee7bea58 1275 is_multicast_ether_addr(hdr->addr1) ||
b797e3fb
EG		 1276 ieee80211_is_ctl(fc) || ieee80211_is_mgmt(fc) ||
1277 ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc))
1278 return 3;
1279
1280 switch (ac) {
1281 case IEEE80211_AC_BE:
1282 return 1;
1283 case IEEE80211_AC_VO:
1284 return 3;
1285 case IEEE80211_AC_VI:
ee7bea58 1286 return 2;
b797e3fb
EG		 1287 default:
1288 break;
1289 }
ee7bea58
EG		 1290
1291 return 0;
1292}
1293
8e484f0b 1294void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm)
9166b1ee 1295{
d37cac98 1296 iwl_mvm_bt_coex_notif_handle(mvm);
9166b1ee 1297}
b9fae2d5
EG		 1298
1299int iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm,
1300 struct iwl_rx_cmd_buffer *rxb,
1301 struct iwl_device_cmd *dev_cmd)
1302{
1303 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1304 u32 ant_isolation = le32_to_cpup((void *)pkt->data);
1305 u8 __maybe_unused lower_bound, upper_bound;
fff47eb0 1306 int ret;
b9fae2d5
EG		 1307 u8 lut;
1308
1309 struct iwl_bt_coex_cmd *bt_cmd;
1310 struct iwl_host_cmd cmd = {
1311 .id = BT_CONFIG,
1312 .len = { sizeof(*bt_cmd), },
1313 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
b9fae2d5
EG		 1314 };
1315
1316 if (!IWL_MVM_BT_COEX_CORUNNING)
1317 return 0;
1318
1319 lockdep_assert_held(&mvm->mutex);
1320
a39979a8
EG		 1321 /* Ignore updates if we are in force mode */
1322 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1323 return 0;
1324
b9fae2d5
EG		 1325 if (ant_isolation == mvm->last_ant_isol)
1326 return 0;
1327
1328 for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++)
1329 if (ant_isolation < antenna_coupling_ranges[lut + 1].range)
1330 break;
1331
1332 lower_bound = antenna_coupling_ranges[lut].range;
1333
1334 if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1)
1335 upper_bound = antenna_coupling_ranges[lut + 1].range;
1336 else
1337 upper_bound = antenna_coupling_ranges[lut].range;
1338
1339 IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n",
1340 ant_isolation, lower_bound, upper_bound, lut);
1341
1342 mvm->last_ant_isol = ant_isolation;
1343
1344 if (mvm->last_corun_lut == lut)
1345 return 0;
1346
1347 mvm->last_corun_lut = lut;
1348
1349 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
1350 if (!bt_cmd)
1351 return 0;
1352 cmd.data[0] = bt_cmd;
1353
1354 bt_cmd->flags = cpu_to_le32(BT_COEX_NW);
1355 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
1356 BT_VALID_CORUN_LUT_20 |
1357 BT_VALID_CORUN_LUT_40);
1358
1359 /* For the moment, use the same LUT for 20GHz and 40GHz */
1360 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[lut].lut20,
1361 sizeof(bt_cmd->bt4_corun_lut20));
1362
1363 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[lut].lut20,
1364 sizeof(bt_cmd->bt4_corun_lut40));
1365
fff47eb0
EG		 1366 ret = iwl_mvm_send_cmd(mvm, &cmd);
1367
1368 kfree(bt_cmd);
1369 return ret;
b9fae2d5 1370}
Linux 6.x block layer and io_uring tree(s)