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Merge tag 'for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux...
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / mvm / coex_legacy.c
1 /******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
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.
35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
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
79 static 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 static int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm)
106 {
107 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
108 return 0;
109
110 return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, 0,
111 sizeof(struct iwl_bt_coex_prio_tbl_cmd),
112 &iwl_bt_prio_tbl);
113 }
114
115 static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = {
116 cpu_to_le32(0xf0f0f0f0), /* 50% */
117 cpu_to_le32(0xc0c0c0c0), /* 25% */
118 cpu_to_le32(0xfcfcfcfc), /* 75% */
119 cpu_to_le32(0xfefefefe), /* 87.5% */
120 };
121
122 static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
123 {
124 cpu_to_le32(0x40000000),
125 cpu_to_le32(0x00000000),
126 cpu_to_le32(0x44000000),
127 cpu_to_le32(0x00000000),
128 cpu_to_le32(0x40000000),
129 cpu_to_le32(0x00000000),
130 cpu_to_le32(0x44000000),
131 cpu_to_le32(0x00000000),
132 cpu_to_le32(0xc0004000),
133 cpu_to_le32(0xf0005000),
134 cpu_to_le32(0xc0004000),
135 cpu_to_le32(0xf0005000),
136 },
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
167 static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
168 {
169 /* Tight */
170 cpu_to_le32(0xaaaaaaaa),
171 cpu_to_le32(0xaaaaaaaa),
172 cpu_to_le32(0xaeaaaaaa),
173 cpu_to_le32(0xaaaaaaaa),
174 cpu_to_le32(0xcc00ff28),
175 cpu_to_le32(0x0000aaaa),
176 cpu_to_le32(0xcc00aaaa),
177 cpu_to_le32(0x0000aaaa),
178 cpu_to_le32(0xc0004000),
179 cpu_to_le32(0x00004000),
180 cpu_to_le32(0xf0005000),
181 cpu_to_le32(0xf0005000),
182 },
183 {
184 /* Loose */
185 cpu_to_le32(0xaaaaaaaa),
186 cpu_to_le32(0xaaaaaaaa),
187 cpu_to_le32(0xaaaaaaaa),
188 cpu_to_le32(0xaaaaaaaa),
189 cpu_to_le32(0xcc00ff28),
190 cpu_to_le32(0x0000aaaa),
191 cpu_to_le32(0xcc00aaaa),
192 cpu_to_le32(0x0000aaaa),
193 cpu_to_le32(0x00000000),
194 cpu_to_le32(0x00000000),
195 cpu_to_le32(0xf0005000),
196 cpu_to_le32(0xf0005000),
197 },
198 {
199 /* Tx Tx disabled */
200 cpu_to_le32(0xaaaaaaaa),
201 cpu_to_le32(0xaaaaaaaa),
202 cpu_to_le32(0xeeaaaaaa),
203 cpu_to_le32(0xaaaaaaaa),
204 cpu_to_le32(0xcc00ff28),
205 cpu_to_le32(0x0000aaaa),
206 cpu_to_le32(0xcc00aaaa),
207 cpu_to_le32(0x0000aaaa),
208 cpu_to_le32(0xc0004000),
209 cpu_to_le32(0xc0004000),
210 cpu_to_le32(0xf0005000),
211 cpu_to_le32(0xf0005000),
212 },
213 };
214
215 /* 20MHz / 40MHz below / 40Mhz above*/
216 static const __le64 iwl_ci_mask[][3] = {
217 /* dummy entry for channel 0 */
218 {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
219 {
220 cpu_to_le64(0x0000001FFFULL),
221 cpu_to_le64(0x0ULL),
222 cpu_to_le64(0x00007FFFFFULL),
223 },
224 {
225 cpu_to_le64(0x000000FFFFULL),
226 cpu_to_le64(0x0ULL),
227 cpu_to_le64(0x0003FFFFFFULL),
228 },
229 {
230 cpu_to_le64(0x000003FFFCULL),
231 cpu_to_le64(0x0ULL),
232 cpu_to_le64(0x000FFFFFFCULL),
233 },
234 {
235 cpu_to_le64(0x00001FFFE0ULL),
236 cpu_to_le64(0x0ULL),
237 cpu_to_le64(0x007FFFFFE0ULL),
238 },
239 {
240 cpu_to_le64(0x00007FFF80ULL),
241 cpu_to_le64(0x00007FFFFFULL),
242 cpu_to_le64(0x01FFFFFF80ULL),
243 },
244 {
245 cpu_to_le64(0x0003FFFC00ULL),
246 cpu_to_le64(0x0003FFFFFFULL),
247 cpu_to_le64(0x0FFFFFFC00ULL),
248 },
249 {
250 cpu_to_le64(0x000FFFF000ULL),
251 cpu_to_le64(0x000FFFFFFCULL),
252 cpu_to_le64(0x3FFFFFF000ULL),
253 },
254 {
255 cpu_to_le64(0x007FFF8000ULL),
256 cpu_to_le64(0x007FFFFFE0ULL),
257 cpu_to_le64(0xFFFFFF8000ULL),
258 },
259 {
260 cpu_to_le64(0x01FFFE0000ULL),
261 cpu_to_le64(0x01FFFFFF80ULL),
262 cpu_to_le64(0xFFFFFE0000ULL),
263 },
264 {
265 cpu_to_le64(0x0FFFF00000ULL),
266 cpu_to_le64(0x0FFFFFFC00ULL),
267 cpu_to_le64(0x0ULL),
268 },
269 {
270 cpu_to_le64(0x3FFFC00000ULL),
271 cpu_to_le64(0x3FFFFFF000ULL),
272 cpu_to_le64(0x0)
273 },
274 {
275 cpu_to_le64(0xFFFE000000ULL),
276 cpu_to_le64(0xFFFFFF8000ULL),
277 cpu_to_le64(0x0)
278 },
279 {
280 cpu_to_le64(0xFFF8000000ULL),
281 cpu_to_le64(0xFFFFFE0000ULL),
282 cpu_to_le64(0x0)
283 },
284 {
285 cpu_to_le64(0xFFC0000000ULL),
286 cpu_to_le64(0x0ULL),
287 cpu_to_le64(0x0ULL)
288 },
289 };
290
291 struct corunning_block_luts {
292 u8 range;
293 __le32 lut20[BT_COEX_CORUN_LUT_SIZE];
294 };
295
296 /*
297 * Ranges for the antenna coupling calibration / co-running block LUT:
298 * LUT0: [ 0, 12[
299 * LUT1: [12, 20[
300 * LUT2: [20, 21[
301 * LUT3: [21, 23[
302 * LUT4: [23, 27[
303 * LUT5: [27, 30[
304 * LUT6: [30, 32[
305 * LUT7: [32, 33[
306 * LUT8: [33, - [
307 */
308 static const struct corunning_block_luts antenna_coupling_ranges[] = {
309 {
310 .range = 0,
311 .lut20 = {
312 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
313 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
314 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
315 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
316 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
317 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
318 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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 },
329 },
330 {
331 .range = 12,
332 .lut20 = {
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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
348 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
349 },
350 },
351 {
352 .range = 20,
353 .lut20 = {
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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
369 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
370 },
371 },
372 {
373 .range = 21,
374 .lut20 = {
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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
390 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
391 },
392 },
393 {
394 .range = 23,
395 .lut20 = {
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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
411 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
412 },
413 },
414 {
415 .range = 27,
416 .lut20 = {
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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
432 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
433 },
434 },
435 {
436 .range = 30,
437 .lut20 = {
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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
453 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
454 },
455 },
456 {
457 .range = 32,
458 .lut20 = {
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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
474 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
475 },
476 },
477 {
478 .range = 33,
479 .lut20 = {
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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
495 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
496 },
497 },
498 };
499
500 static enum iwl_bt_coex_lut_type
501 iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
502 {
503 struct ieee80211_chanctx_conf *chanctx_conf;
504 enum iwl_bt_coex_lut_type ret;
505 u16 phy_ctx_id;
506
507 /*
508 * Checking that we hold mvm->mutex is a good idea, but the rate
509 * control can't acquire the mutex since it runs in Tx path.
510 * So this is racy in that case, but in the worst case, the AMPDU
511 * size limit will be wrong for a short time which is not a big
512 * issue.
513 */
514
515 rcu_read_lock();
516
517 chanctx_conf = rcu_dereference(vif->chanctx_conf);
518
519 if (!chanctx_conf ||
520 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
521 rcu_read_unlock();
522 return BT_COEX_INVALID_LUT;
523 }
524
525 ret = BT_COEX_TX_DIS_LUT;
526
527 if (mvm->cfg->bt_shared_single_ant) {
528 rcu_read_unlock();
529 return ret;
530 }
531
532 phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
533
534 if (mvm->last_bt_ci_cmd_old.primary_ch_phy_id == phy_ctx_id)
535 ret = le32_to_cpu(mvm->last_bt_notif_old.primary_ch_lut);
536 else if (mvm->last_bt_ci_cmd_old.secondary_ch_phy_id == phy_ctx_id)
537 ret = le32_to_cpu(mvm->last_bt_notif_old.secondary_ch_lut);
538 /* else - default = TX TX disallowed */
539
540 rcu_read_unlock();
541
542 return ret;
543 }
544
545 int iwl_send_bt_init_conf_old(struct iwl_mvm *mvm)
546 {
547 struct iwl_bt_coex_cmd_old *bt_cmd;
548 struct iwl_host_cmd cmd = {
549 .id = BT_CONFIG,
550 .len = { sizeof(*bt_cmd), },
551 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
552 };
553 int ret;
554 u32 flags;
555
556 ret = iwl_send_bt_prio_tbl(mvm);
557 if (ret)
558 return ret;
559
560 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
561 if (!bt_cmd)
562 return -ENOMEM;
563 cmd.data[0] = bt_cmd;
564
565 lockdep_assert_held(&mvm->mutex);
566
567 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) {
568 switch (mvm->bt_force_ant_mode) {
569 case BT_FORCE_ANT_AUTO:
570 flags = BT_COEX_AUTO_OLD;
571 break;
572 case BT_FORCE_ANT_BT:
573 flags = BT_COEX_BT_OLD;
574 break;
575 case BT_FORCE_ANT_WIFI:
576 flags = BT_COEX_WIFI_OLD;
577 break;
578 default:
579 WARN_ON(1);
580 flags = 0;
581 }
582
583 bt_cmd->flags = cpu_to_le32(flags);
584 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE);
585 goto send_cmd;
586 }
587
588 bt_cmd->max_kill = 5;
589 bt_cmd->bt4_antenna_isolation_thr =
590 IWL_MVM_BT_COEX_ANTENNA_COUPLING_THRS;
591 bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling;
592 bt_cmd->bt4_tx_tx_delta_freq_thr = 15;
593 bt_cmd->bt4_tx_rx_max_freq0 = 15;
594 bt_cmd->override_primary_lut = BT_COEX_INVALID_LUT;
595 bt_cmd->override_secondary_lut = BT_COEX_INVALID_LUT;
596
597 flags = iwlwifi_mod_params.bt_coex_active ?
598 BT_COEX_NW_OLD : BT_COEX_DISABLE_OLD;
599 bt_cmd->flags = cpu_to_le32(flags);
600
601 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE |
602 BT_VALID_BT_PRIO_BOOST |
603 BT_VALID_MAX_KILL |
604 BT_VALID_3W_TMRS |
605 BT_VALID_KILL_ACK |
606 BT_VALID_KILL_CTS |
607 BT_VALID_REDUCED_TX_POWER |
608 BT_VALID_LUT |
609 BT_VALID_WIFI_RX_SW_PRIO_BOOST |
610 BT_VALID_WIFI_TX_SW_PRIO_BOOST |
611 BT_VALID_ANT_ISOLATION |
612 BT_VALID_ANT_ISOLATION_THRS |
613 BT_VALID_TXTX_DELTA_FREQ_THRS |
614 BT_VALID_TXRX_MAX_FREQ_0 |
615 BT_VALID_SYNC_TO_SCO |
616 BT_VALID_TTC |
617 BT_VALID_RRC);
618
619 if (IWL_MVM_BT_COEX_SYNC2SCO)
620 bt_cmd->flags |= cpu_to_le32(BT_COEX_SYNC2SCO);
621
622 if (IWL_MVM_BT_COEX_CORUNNING) {
623 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_CORUN_LUT_20 |
624 BT_VALID_CORUN_LUT_40);
625 bt_cmd->flags |= cpu_to_le32(BT_COEX_CORUNNING);
626 }
627
628 if (IWL_MVM_BT_COEX_MPLUT) {
629 bt_cmd->flags |= cpu_to_le32(BT_COEX_MPLUT);
630 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_MULTI_PRIO_LUT);
631 }
632
633 if (IWL_MVM_BT_COEX_TTC)
634 bt_cmd->flags |= cpu_to_le32(BT_COEX_TTC);
635
636 if (IWL_MVM_BT_COEX_RRC)
637 bt_cmd->flags |= cpu_to_le32(BT_COEX_RRC);
638
639 if (mvm->cfg->bt_shared_single_ant)
640 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant,
641 sizeof(iwl_single_shared_ant));
642 else
643 memcpy(&bt_cmd->decision_lut, iwl_combined_lookup,
644 sizeof(iwl_combined_lookup));
645
646 /* Take first Co-running block LUT to get started */
647 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[0].lut20,
648 sizeof(bt_cmd->bt4_corun_lut20));
649 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[0].lut20,
650 sizeof(bt_cmd->bt4_corun_lut40));
651
652 memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost,
653 sizeof(iwl_bt_prio_boost));
654 bt_cmd->bt4_multiprio_lut[0] = cpu_to_le32(IWL_MVM_BT_COEX_MPLUT_REG0);
655 bt_cmd->bt4_multiprio_lut[1] = cpu_to_le32(IWL_MVM_BT_COEX_MPLUT_REG1);
656
657 send_cmd:
658 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
659 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
660
661 ret = iwl_mvm_send_cmd(mvm, &cmd);
662
663 kfree(bt_cmd);
664 return ret;
665 }
666
667 static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm)
668 {
669 struct iwl_bt_coex_profile_notif_old *notif = &mvm->last_bt_notif_old;
670 u32 primary_lut = le32_to_cpu(notif->primary_ch_lut);
671 u32 ag = le32_to_cpu(notif->bt_activity_grading);
672 struct iwl_bt_coex_cmd_old *bt_cmd;
673 u8 ack_kill_msk, cts_kill_msk;
674 struct iwl_host_cmd cmd = {
675 .id = BT_CONFIG,
676 .data[0] = &bt_cmd,
677 .len = { sizeof(*bt_cmd), },
678 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
679 };
680 int ret = 0;
681
682 lockdep_assert_held(&mvm->mutex);
683
684 ack_kill_msk = iwl_bt_ack_kill_msk[ag][primary_lut];
685 cts_kill_msk = iwl_bt_cts_kill_msk[ag][primary_lut];
686
687 if (mvm->bt_ack_kill_msk[0] == ack_kill_msk &&
688 mvm->bt_cts_kill_msk[0] == cts_kill_msk)
689 return 0;
690
691 mvm->bt_ack_kill_msk[0] = ack_kill_msk;
692 mvm->bt_cts_kill_msk[0] = cts_kill_msk;
693
694 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
695 if (!bt_cmd)
696 return -ENOMEM;
697 cmd.data[0] = bt_cmd;
698 bt_cmd->flags = cpu_to_le32(BT_COEX_NW_OLD);
699
700 bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ctl_kill_msk[ack_kill_msk]);
701 bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_ctl_kill_msk[cts_kill_msk]);
702 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
703 BT_VALID_KILL_ACK |
704 BT_VALID_KILL_CTS);
705
706 ret = iwl_mvm_send_cmd(mvm, &cmd);
707
708 kfree(bt_cmd);
709 return ret;
710 }
711
712 static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
713 bool enable)
714 {
715 struct iwl_bt_coex_cmd_old *bt_cmd;
716 /* Send ASYNC since this can be sent from an atomic context */
717 struct iwl_host_cmd cmd = {
718 .id = BT_CONFIG,
719 .len = { sizeof(*bt_cmd), },
720 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
721 .flags = CMD_ASYNC,
722 };
723 struct iwl_mvm_sta *mvmsta;
724 int ret;
725
726 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
727 if (!mvmsta)
728 return 0;
729
730 /* nothing to do */
731 if (mvmsta->bt_reduced_txpower == enable)
732 return 0;
733
734 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC);
735 if (!bt_cmd)
736 return -ENOMEM;
737 cmd.data[0] = bt_cmd;
738 bt_cmd->flags = cpu_to_le32(BT_COEX_NW_OLD);
739
740 bt_cmd->valid_bit_msk =
741 cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER);
742 bt_cmd->bt_reduced_tx_power = sta_id;
743
744 if (enable)
745 bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT;
746
747 IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
748 enable ? "en" : "dis", sta_id);
749
750 mvmsta->bt_reduced_txpower = enable;
751
752 ret = iwl_mvm_send_cmd(mvm, &cmd);
753
754 kfree(bt_cmd);
755 return ret;
756 }
757
758 struct iwl_bt_iterator_data {
759 struct iwl_bt_coex_profile_notif_old *notif;
760 struct iwl_mvm *mvm;
761 struct ieee80211_chanctx_conf *primary;
762 struct ieee80211_chanctx_conf *secondary;
763 bool primary_ll;
764 };
765
766 static inline
767 void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
768 struct ieee80211_vif *vif,
769 bool enable, int rssi)
770 {
771 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
772
773 mvmvif->bf_data.last_bt_coex_event = rssi;
774 mvmvif->bf_data.bt_coex_max_thold =
775 enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0;
776 mvmvif->bf_data.bt_coex_min_thold =
777 enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0;
778 }
779
780 /* must be called under rcu_read_lock */
781 static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
782 struct ieee80211_vif *vif)
783 {
784 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
785 struct iwl_bt_iterator_data *data = _data;
786 struct iwl_mvm *mvm = data->mvm;
787 struct ieee80211_chanctx_conf *chanctx_conf;
788 enum ieee80211_smps_mode smps_mode;
789 u32 bt_activity_grading;
790 int ave_rssi;
791
792 lockdep_assert_held(&mvm->mutex);
793
794 switch (vif->type) {
795 case NL80211_IFTYPE_STATION:
796 /* default smps_mode for BSS / P2P client is AUTOMATIC */
797 smps_mode = IEEE80211_SMPS_AUTOMATIC;
798 break;
799 case NL80211_IFTYPE_AP:
800 if (!mvmvif->ap_ibss_active)
801 return;
802 break;
803 default:
804 return;
805 }
806
807 chanctx_conf = rcu_dereference(vif->chanctx_conf);
808
809 /* If channel context is invalid or not on 2.4GHz .. */
810 if ((!chanctx_conf ||
811 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) {
812 if (vif->type == NL80211_IFTYPE_STATION) {
813 /* ... relax constraints and disable rssi events */
814 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
815 smps_mode);
816 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
817 false);
818 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
819 }
820 return;
821 }
822
823 bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
824 if (bt_activity_grading >= BT_HIGH_TRAFFIC)
825 smps_mode = IEEE80211_SMPS_STATIC;
826 else if (bt_activity_grading >= BT_LOW_TRAFFIC)
827 smps_mode = vif->type == NL80211_IFTYPE_AP ?
828 IEEE80211_SMPS_OFF :
829 IEEE80211_SMPS_DYNAMIC;
830
831 /* relax SMPS contraints for next association */
832 if (!vif->bss_conf.assoc)
833 smps_mode = IEEE80211_SMPS_AUTOMATIC;
834
835 if (mvmvif->phy_ctxt &&
836 data->notif->rrc_enabled & BIT(mvmvif->phy_ctxt->id))
837 smps_mode = IEEE80211_SMPS_AUTOMATIC;
838
839 IWL_DEBUG_COEX(data->mvm,
840 "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n",
841 mvmvif->id, data->notif->bt_status, bt_activity_grading,
842 smps_mode);
843
844 if (vif->type == NL80211_IFTYPE_STATION)
845 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
846 smps_mode);
847
848 /* low latency is always primary */
849 if (iwl_mvm_vif_low_latency(mvmvif)) {
850 data->primary_ll = true;
851
852 data->secondary = data->primary;
853 data->primary = chanctx_conf;
854 }
855
856 if (vif->type == NL80211_IFTYPE_AP) {
857 if (!mvmvif->ap_ibss_active)
858 return;
859
860 if (chanctx_conf == data->primary)
861 return;
862
863 if (!data->primary_ll) {
864 /*
865 * downgrade the current primary no matter what its
866 * type is.
867 */
868 data->secondary = data->primary;
869 data->primary = chanctx_conf;
870 } else {
871 /* there is low latency vif - we will be secondary */
872 data->secondary = chanctx_conf;
873 }
874 return;
875 }
876
877 /*
878 * STA / P2P Client, try to be primary if first vif. If we are in low
879 * latency mode, we are already in primary and just don't do much
880 */
881 if (!data->primary || data->primary == chanctx_conf)
882 data->primary = chanctx_conf;
883 else if (!data->secondary)
884 /* if secondary is not NULL, it might be a GO */
885 data->secondary = chanctx_conf;
886
887 /*
888 * don't reduce the Tx power if one of these is true:
889 * we are in LOOSE
890 * single share antenna product
891 * BT is active
892 * we are associated
893 */
894 if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
895 mvm->cfg->bt_shared_single_ant || !vif->bss_conf.assoc ||
896 !data->notif->bt_status) {
897 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false);
898 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
899 return;
900 }
901
902 /* try to get the avg rssi from fw */
903 ave_rssi = mvmvif->bf_data.ave_beacon_signal;
904
905 /* if the RSSI isn't valid, fake it is very low */
906 if (!ave_rssi)
907 ave_rssi = -100;
908 if (ave_rssi > -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH) {
909 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true))
910 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
911 } else if (ave_rssi < -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH) {
912 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
913 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
914 }
915
916 /* Begin to monitor the RSSI: it may influence the reduced Tx power */
917 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
918 }
919
920 static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
921 {
922 struct iwl_bt_iterator_data data = {
923 .mvm = mvm,
924 .notif = &mvm->last_bt_notif_old,
925 };
926 struct iwl_bt_coex_ci_cmd_old cmd = {};
927 u8 ci_bw_idx;
928
929 /* Ignore updates if we are in force mode */
930 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
931 return;
932
933 rcu_read_lock();
934 ieee80211_iterate_active_interfaces_atomic(
935 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
936 iwl_mvm_bt_notif_iterator, &data);
937
938 if (data.primary) {
939 struct ieee80211_chanctx_conf *chan = data.primary;
940
941 if (WARN_ON(!chan->def.chan)) {
942 rcu_read_unlock();
943 return;
944 }
945
946 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
947 ci_bw_idx = 0;
948 cmd.co_run_bw_primary = 0;
949 } else {
950 cmd.co_run_bw_primary = 1;
951 if (chan->def.center_freq1 >
952 chan->def.chan->center_freq)
953 ci_bw_idx = 2;
954 else
955 ci_bw_idx = 1;
956 }
957
958 cmd.bt_primary_ci =
959 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
960 cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv);
961 }
962
963 if (data.secondary) {
964 struct ieee80211_chanctx_conf *chan = data.secondary;
965
966 if (WARN_ON(!data.secondary->def.chan)) {
967 rcu_read_unlock();
968 return;
969 }
970
971 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
972 ci_bw_idx = 0;
973 cmd.co_run_bw_secondary = 0;
974 } else {
975 cmd.co_run_bw_secondary = 1;
976 if (chan->def.center_freq1 >
977 chan->def.chan->center_freq)
978 ci_bw_idx = 2;
979 else
980 ci_bw_idx = 1;
981 }
982
983 cmd.bt_secondary_ci =
984 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
985 cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv);
986 }
987
988 rcu_read_unlock();
989
990 /* Don't spam the fw with the same command over and over */
991 if (memcmp(&cmd, &mvm->last_bt_ci_cmd_old, sizeof(cmd))) {
992 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0,
993 sizeof(cmd), &cmd))
994 IWL_ERR(mvm, "Failed to send BT_CI cmd\n");
995 memcpy(&mvm->last_bt_ci_cmd_old, &cmd, sizeof(cmd));
996 }
997
998 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm))
999 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
1000 }
1001
1002 int iwl_mvm_rx_bt_coex_notif_old(struct iwl_mvm *mvm,
1003 struct iwl_rx_cmd_buffer *rxb,
1004 struct iwl_device_cmd *dev_cmd)
1005 {
1006 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1007 struct iwl_bt_coex_profile_notif_old *notif = (void *)pkt->data;
1008
1009 IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
1010 IWL_DEBUG_COEX(mvm, "\tBT status: %s\n",
1011 notif->bt_status ? "ON" : "OFF");
1012 IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn);
1013 IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
1014 IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
1015 le32_to_cpu(notif->primary_ch_lut));
1016 IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
1017 le32_to_cpu(notif->secondary_ch_lut));
1018 IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
1019 le32_to_cpu(notif->bt_activity_grading));
1020 IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n",
1021 notif->bt_agg_traffic_load);
1022
1023 /* remember this notification for future use: rssi fluctuations */
1024 memcpy(&mvm->last_bt_notif_old, notif, sizeof(mvm->last_bt_notif_old));
1025
1026 iwl_mvm_bt_coex_notif_handle(mvm);
1027
1028 /*
1029 * This is an async handler for a notification, returning anything other
1030 * than 0 doesn't make sense even if HCMD failed.
1031 */
1032 return 0;
1033 }
1034
1035 static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
1036 struct ieee80211_vif *vif)
1037 {
1038 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1039 struct iwl_bt_iterator_data *data = _data;
1040 struct iwl_mvm *mvm = data->mvm;
1041
1042 struct ieee80211_sta *sta;
1043 struct iwl_mvm_sta *mvmsta;
1044
1045 struct ieee80211_chanctx_conf *chanctx_conf;
1046
1047 rcu_read_lock();
1048 chanctx_conf = rcu_dereference(vif->chanctx_conf);
1049 /* If channel context is invalid or not on 2.4GHz - don't count it */
1050 if (!chanctx_conf ||
1051 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
1052 rcu_read_unlock();
1053 return;
1054 }
1055 rcu_read_unlock();
1056
1057 if (vif->type != NL80211_IFTYPE_STATION ||
1058 mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1059 return;
1060
1061 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1062 lockdep_is_held(&mvm->mutex));
1063
1064 /* This can happen if the station has been removed right now */
1065 if (IS_ERR_OR_NULL(sta))
1066 return;
1067
1068 mvmsta = iwl_mvm_sta_from_mac80211(sta);
1069 }
1070
1071 void iwl_mvm_bt_rssi_event_old(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1072 enum ieee80211_rssi_event rssi_event)
1073 {
1074 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1075 struct iwl_bt_iterator_data data = {
1076 .mvm = mvm,
1077 };
1078 int ret;
1079
1080 lockdep_assert_held(&mvm->mutex);
1081
1082 /* Ignore updates if we are in force mode */
1083 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1084 return;
1085
1086 /*
1087 * Rssi update while not associated - can happen since the statistics
1088 * are handled asynchronously
1089 */
1090 if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1091 return;
1092
1093 /* No BT - reports should be disabled */
1094 if (!mvm->last_bt_notif_old.bt_status)
1095 return;
1096
1097 IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
1098 rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
1099
1100 /*
1101 * Check if rssi is good enough for reduced Tx power, but not in loose
1102 * scheme.
1103 */
1104 if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
1105 iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
1106 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
1107 false);
1108 else
1109 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true);
1110
1111 if (ret)
1112 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
1113
1114 ieee80211_iterate_active_interfaces_atomic(
1115 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1116 iwl_mvm_bt_rssi_iterator, &data);
1117
1118 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm))
1119 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
1120 }
1121
1122 #define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000)
1123 #define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
1124
1125 u16 iwl_mvm_coex_agg_time_limit_old(struct iwl_mvm *mvm,
1126 struct ieee80211_sta *sta)
1127 {
1128 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1129 enum iwl_bt_coex_lut_type lut_type;
1130
1131 if (le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading) <
1132 BT_HIGH_TRAFFIC)
1133 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1134
1135 if (mvm->last_bt_notif_old.ttc_enabled)
1136 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1137
1138 lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1139
1140 if (lut_type == BT_COEX_LOOSE_LUT || lut_type == BT_COEX_INVALID_LUT)
1141 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1142
1143 /* tight coex, high bt traffic, reduce AGG time limit */
1144 return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
1145 }
1146
1147 bool iwl_mvm_bt_coex_is_mimo_allowed_old(struct iwl_mvm *mvm,
1148 struct ieee80211_sta *sta)
1149 {
1150 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1151 enum iwl_bt_coex_lut_type lut_type;
1152
1153 if (mvm->last_bt_notif_old.ttc_enabled)
1154 return true;
1155
1156 if (le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading) <
1157 BT_HIGH_TRAFFIC)
1158 return true;
1159
1160 /*
1161 * In Tight / TxTxDis, BT can't Rx while we Tx, so use both antennas
1162 * since BT is already killed.
1163 * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while
1164 * we Tx.
1165 * When we are in 5GHz, we'll get BT_COEX_INVALID_LUT allowing MIMO.
1166 */
1167 lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1168 return lut_type != BT_COEX_LOOSE_LUT;
1169 }
1170
1171 bool iwl_mvm_bt_coex_is_ant_avail_old(struct iwl_mvm *mvm, u8 ant)
1172 {
1173 u32 ag = le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading);
1174 return ag < BT_HIGH_TRAFFIC;
1175 }
1176
1177 bool iwl_mvm_bt_coex_is_shared_ant_avail_old(struct iwl_mvm *mvm)
1178 {
1179 u32 ag = le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading);
1180 return ag == BT_OFF;
1181 }
1182
1183 bool iwl_mvm_bt_coex_is_tpc_allowed_old(struct iwl_mvm *mvm,
1184 enum ieee80211_band band)
1185 {
1186 u32 bt_activity =
1187 le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading);
1188
1189 if (band != IEEE80211_BAND_2GHZ)
1190 return false;
1191
1192 return bt_activity >= BT_LOW_TRAFFIC;
1193 }
1194
1195 void iwl_mvm_bt_coex_vif_change_old(struct iwl_mvm *mvm)
1196 {
1197 iwl_mvm_bt_coex_notif_handle(mvm);
1198 }
1199
1200 int iwl_mvm_rx_ant_coupling_notif_old(struct iwl_mvm *mvm,
1201 struct iwl_rx_cmd_buffer *rxb,
1202 struct iwl_device_cmd *dev_cmd)
1203 {
1204 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1205 u32 ant_isolation = le32_to_cpup((void *)pkt->data);
1206 u8 __maybe_unused lower_bound, upper_bound;
1207 int ret;
1208 u8 lut;
1209
1210 struct iwl_bt_coex_cmd_old *bt_cmd;
1211 struct iwl_host_cmd cmd = {
1212 .id = BT_CONFIG,
1213 .len = { sizeof(*bt_cmd), },
1214 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
1215 };
1216
1217 if (!IWL_MVM_BT_COEX_CORUNNING)
1218 return 0;
1219
1220 lockdep_assert_held(&mvm->mutex);
1221
1222 /* Ignore updates if we are in force mode */
1223 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1224 return 0;
1225
1226 if (ant_isolation == mvm->last_ant_isol)
1227 return 0;
1228
1229 for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++)
1230 if (ant_isolation < antenna_coupling_ranges[lut + 1].range)
1231 break;
1232
1233 lower_bound = antenna_coupling_ranges[lut].range;
1234
1235 if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1)
1236 upper_bound = antenna_coupling_ranges[lut + 1].range;
1237 else
1238 upper_bound = antenna_coupling_ranges[lut].range;
1239
1240 IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n",
1241 ant_isolation, lower_bound, upper_bound, lut);
1242
1243 mvm->last_ant_isol = ant_isolation;
1244
1245 if (mvm->last_corun_lut == lut)
1246 return 0;
1247
1248 mvm->last_corun_lut = lut;
1249
1250 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
1251 if (!bt_cmd)
1252 return 0;
1253 cmd.data[0] = bt_cmd;
1254
1255 bt_cmd->flags = cpu_to_le32(BT_COEX_NW_OLD);
1256 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
1257 BT_VALID_CORUN_LUT_20 |
1258 BT_VALID_CORUN_LUT_40);
1259
1260 /* For the moment, use the same LUT for 20GHz and 40GHz */
1261 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[lut].lut20,
1262 sizeof(bt_cmd->bt4_corun_lut20));
1263
1264 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[lut].lut20,
1265 sizeof(bt_cmd->bt4_corun_lut40));
1266
1267 ret = iwl_mvm_send_cmd(mvm, &cmd);
1268
1269 kfree(bt_cmd);
1270 return ret;
1271 }
Linux kernel - Deliverables
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