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iwlwifi: move under intel vendor directory
[deliverable/linux.git] / drivers / net / wireless / intel / iwlwifi / mvm / coex.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 - 2015 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 - 2015 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 /* 20MHz / 40MHz below / 40Mhz above*/
76 static const __le64 iwl_ci_mask[][3] = {
77 /* dummy entry for channel 0 */
78 {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
79 {
80 cpu_to_le64(0x0000001FFFULL),
81 cpu_to_le64(0x0ULL),
82 cpu_to_le64(0x00007FFFFFULL),
83 },
84 {
85 cpu_to_le64(0x000000FFFFULL),
86 cpu_to_le64(0x0ULL),
87 cpu_to_le64(0x0003FFFFFFULL),
88 },
89 {
90 cpu_to_le64(0x000003FFFCULL),
91 cpu_to_le64(0x0ULL),
92 cpu_to_le64(0x000FFFFFFCULL),
93 },
94 {
95 cpu_to_le64(0x00001FFFE0ULL),
96 cpu_to_le64(0x0ULL),
97 cpu_to_le64(0x007FFFFFE0ULL),
98 },
99 {
100 cpu_to_le64(0x00007FFF80ULL),
101 cpu_to_le64(0x00007FFFFFULL),
102 cpu_to_le64(0x01FFFFFF80ULL),
103 },
104 {
105 cpu_to_le64(0x0003FFFC00ULL),
106 cpu_to_le64(0x0003FFFFFFULL),
107 cpu_to_le64(0x0FFFFFFC00ULL),
108 },
109 {
110 cpu_to_le64(0x000FFFF000ULL),
111 cpu_to_le64(0x000FFFFFFCULL),
112 cpu_to_le64(0x3FFFFFF000ULL),
113 },
114 {
115 cpu_to_le64(0x007FFF8000ULL),
116 cpu_to_le64(0x007FFFFFE0ULL),
117 cpu_to_le64(0xFFFFFF8000ULL),
118 },
119 {
120 cpu_to_le64(0x01FFFE0000ULL),
121 cpu_to_le64(0x01FFFFFF80ULL),
122 cpu_to_le64(0xFFFFFE0000ULL),
123 },
124 {
125 cpu_to_le64(0x0FFFF00000ULL),
126 cpu_to_le64(0x0FFFFFFC00ULL),
127 cpu_to_le64(0x0ULL),
128 },
129 {
130 cpu_to_le64(0x3FFFC00000ULL),
131 cpu_to_le64(0x3FFFFFF000ULL),
132 cpu_to_le64(0x0)
133 },
134 {
135 cpu_to_le64(0xFFFE000000ULL),
136 cpu_to_le64(0xFFFFFF8000ULL),
137 cpu_to_le64(0x0)
138 },
139 {
140 cpu_to_le64(0xFFF8000000ULL),
141 cpu_to_le64(0xFFFFFE0000ULL),
142 cpu_to_le64(0x0)
143 },
144 {
145 cpu_to_le64(0xFFC0000000ULL),
146 cpu_to_le64(0x0ULL),
147 cpu_to_le64(0x0ULL)
148 },
149 };
150
151 struct corunning_block_luts {
152 u8 range;
153 __le32 lut20[BT_COEX_CORUN_LUT_SIZE];
154 };
155
156 /*
157 * Ranges for the antenna coupling calibration / co-running block LUT:
158 * LUT0: [ 0, 12[
159 * LUT1: [12, 20[
160 * LUT2: [20, 21[
161 * LUT3: [21, 23[
162 * LUT4: [23, 27[
163 * LUT5: [27, 30[
164 * LUT6: [30, 32[
165 * LUT7: [32, 33[
166 * LUT8: [33, - [
167 */
168 static const struct corunning_block_luts antenna_coupling_ranges[] = {
169 {
170 .range = 0,
171 .lut20 = {
172 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
173 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
174 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
175 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
176 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
177 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
178 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
179 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
180 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
181 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
182 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
183 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
184 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
185 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
186 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
187 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
188 },
189 },
190 {
191 .range = 12,
192 .lut20 = {
193 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
194 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
195 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
196 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
197 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
198 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
199 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
200 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
201 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
202 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
203 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
204 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
205 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
206 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
207 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
208 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
209 },
210 },
211 {
212 .range = 20,
213 .lut20 = {
214 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
215 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
216 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
217 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
218 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
219 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
220 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
221 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
222 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
223 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
224 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
225 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
226 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
227 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
228 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
229 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
230 },
231 },
232 {
233 .range = 21,
234 .lut20 = {
235 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
236 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
237 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
238 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
239 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
240 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
241 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
242 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
243 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
244 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
245 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
246 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
247 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
248 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
249 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
250 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
251 },
252 },
253 {
254 .range = 23,
255 .lut20 = {
256 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
257 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
258 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
259 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
260 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
261 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
262 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
263 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
264 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
265 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
266 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
267 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
268 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
269 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
270 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
271 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
272 },
273 },
274 {
275 .range = 27,
276 .lut20 = {
277 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
278 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
279 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
280 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
281 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
282 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
283 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
284 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
285 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
286 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
287 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
288 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
289 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
290 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
291 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
292 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
293 },
294 },
295 {
296 .range = 30,
297 .lut20 = {
298 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
299 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
300 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
301 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
302 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
303 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
304 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
305 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
306 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
307 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
308 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
309 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
310 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
311 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
312 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
313 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
314 },
315 },
316 {
317 .range = 32,
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 = 33,
339 .lut20 = {
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 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
360 static enum iwl_bt_coex_lut_type
361 iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
362 {
363 struct ieee80211_chanctx_conf *chanctx_conf;
364 enum iwl_bt_coex_lut_type ret;
365 u16 phy_ctx_id;
366 u32 primary_ch_phy_id, secondary_ch_phy_id;
367
368 /*
369 * Checking that we hold mvm->mutex is a good idea, but the rate
370 * control can't acquire the mutex since it runs in Tx path.
371 * So this is racy in that case, but in the worst case, the AMPDU
372 * size limit will be wrong for a short time which is not a big
373 * issue.
374 */
375
376 rcu_read_lock();
377
378 chanctx_conf = rcu_dereference(vif->chanctx_conf);
379
380 if (!chanctx_conf ||
381 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
382 rcu_read_unlock();
383 return BT_COEX_INVALID_LUT;
384 }
385
386 ret = BT_COEX_TX_DIS_LUT;
387
388 if (mvm->cfg->bt_shared_single_ant) {
389 rcu_read_unlock();
390 return ret;
391 }
392
393 phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
394 primary_ch_phy_id = le32_to_cpu(mvm->last_bt_ci_cmd.primary_ch_phy_id);
395 secondary_ch_phy_id =
396 le32_to_cpu(mvm->last_bt_ci_cmd.secondary_ch_phy_id);
397
398 if (primary_ch_phy_id == phy_ctx_id)
399 ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut);
400 else if (secondary_ch_phy_id == phy_ctx_id)
401 ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut);
402 /* else - default = TX TX disallowed */
403
404 rcu_read_unlock();
405
406 return ret;
407 }
408
409 int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
410 {
411 struct iwl_bt_coex_cmd bt_cmd = {};
412 u32 mode;
413
414 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_BT_COEX_SPLIT))
415 return iwl_send_bt_init_conf_old(mvm);
416
417 lockdep_assert_held(&mvm->mutex);
418
419 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) {
420 switch (mvm->bt_force_ant_mode) {
421 case BT_FORCE_ANT_BT:
422 mode = BT_COEX_BT;
423 break;
424 case BT_FORCE_ANT_WIFI:
425 mode = BT_COEX_WIFI;
426 break;
427 default:
428 WARN_ON(1);
429 mode = 0;
430 }
431
432 bt_cmd.mode = cpu_to_le32(mode);
433 goto send_cmd;
434 }
435
436 mode = iwlwifi_mod_params.bt_coex_active ? BT_COEX_NW : BT_COEX_DISABLE;
437 bt_cmd.mode = cpu_to_le32(mode);
438
439 if (IWL_MVM_BT_COEX_SYNC2SCO)
440 bt_cmd.enabled_modules |=
441 cpu_to_le32(BT_COEX_SYNC2SCO_ENABLED);
442
443 if (iwl_mvm_bt_is_plcr_supported(mvm))
444 bt_cmd.enabled_modules |= cpu_to_le32(BT_COEX_CORUN_ENABLED);
445
446 if (IWL_MVM_BT_COEX_MPLUT) {
447 bt_cmd.enabled_modules |= cpu_to_le32(BT_COEX_MPLUT_ENABLED);
448 bt_cmd.enabled_modules |=
449 cpu_to_le32(BT_COEX_MPLUT_BOOST_ENABLED);
450 }
451
452 bt_cmd.enabled_modules |= cpu_to_le32(BT_COEX_HIGH_BAND_RET);
453
454 send_cmd:
455 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
456 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
457
458 return iwl_mvm_send_cmd_pdu(mvm, BT_CONFIG, 0, sizeof(bt_cmd), &bt_cmd);
459 }
460
461 static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
462 bool enable)
463 {
464 struct iwl_bt_coex_reduced_txp_update_cmd cmd = {};
465 struct iwl_mvm_sta *mvmsta;
466 u32 value;
467 int ret;
468
469 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
470 if (!mvmsta)
471 return 0;
472
473 /* nothing to do */
474 if (mvmsta->bt_reduced_txpower == enable)
475 return 0;
476
477 value = mvmsta->sta_id;
478
479 if (enable)
480 value |= BT_REDUCED_TX_POWER_BIT;
481
482 IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
483 enable ? "en" : "dis", sta_id);
484
485 cmd.reduced_txp = cpu_to_le32(value);
486 mvmsta->bt_reduced_txpower = enable;
487
488 ret = iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_REDUCED_TXP, CMD_ASYNC,
489 sizeof(cmd), &cmd);
490
491 return ret;
492 }
493
494 struct iwl_bt_iterator_data {
495 struct iwl_bt_coex_profile_notif *notif;
496 struct iwl_mvm *mvm;
497 struct ieee80211_chanctx_conf *primary;
498 struct ieee80211_chanctx_conf *secondary;
499 bool primary_ll;
500 };
501
502 static inline
503 void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
504 struct ieee80211_vif *vif,
505 bool enable, int rssi)
506 {
507 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
508
509 mvmvif->bf_data.last_bt_coex_event = rssi;
510 mvmvif->bf_data.bt_coex_max_thold =
511 enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0;
512 mvmvif->bf_data.bt_coex_min_thold =
513 enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0;
514 }
515
516 /* must be called under rcu_read_lock */
517 static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
518 struct ieee80211_vif *vif)
519 {
520 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
521 struct iwl_bt_iterator_data *data = _data;
522 struct iwl_mvm *mvm = data->mvm;
523 struct ieee80211_chanctx_conf *chanctx_conf;
524 /* default smps_mode is AUTOMATIC - only used for client modes */
525 enum ieee80211_smps_mode smps_mode = IEEE80211_SMPS_AUTOMATIC;
526 u32 bt_activity_grading;
527 int ave_rssi;
528
529 lockdep_assert_held(&mvm->mutex);
530
531 switch (vif->type) {
532 case NL80211_IFTYPE_STATION:
533 break;
534 case NL80211_IFTYPE_AP:
535 if (!mvmvif->ap_ibss_active)
536 return;
537 break;
538 default:
539 return;
540 }
541
542 chanctx_conf = rcu_dereference(vif->chanctx_conf);
543
544 /* If channel context is invalid or not on 2.4GHz .. */
545 if ((!chanctx_conf ||
546 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) {
547 if (vif->type == NL80211_IFTYPE_STATION) {
548 /* ... relax constraints and disable rssi events */
549 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
550 smps_mode);
551 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
552 false);
553 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
554 }
555 return;
556 }
557
558 bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
559 if (bt_activity_grading >= BT_HIGH_TRAFFIC)
560 smps_mode = IEEE80211_SMPS_STATIC;
561 else if (bt_activity_grading >= BT_LOW_TRAFFIC)
562 smps_mode = IEEE80211_SMPS_DYNAMIC;
563
564 /* relax SMPS constraints for next association */
565 if (!vif->bss_conf.assoc)
566 smps_mode = IEEE80211_SMPS_AUTOMATIC;
567
568 if (mvmvif->phy_ctxt &&
569 IWL_COEX_IS_RRC_ON(mvm->last_bt_notif.ttc_rrc_status,
570 mvmvif->phy_ctxt->id))
571 smps_mode = IEEE80211_SMPS_AUTOMATIC;
572
573 IWL_DEBUG_COEX(data->mvm,
574 "mac %d: bt_activity_grading %d smps_req %d\n",
575 mvmvif->id, bt_activity_grading, smps_mode);
576
577 if (vif->type == NL80211_IFTYPE_STATION)
578 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
579 smps_mode);
580
581 /* low latency is always primary */
582 if (iwl_mvm_vif_low_latency(mvmvif)) {
583 data->primary_ll = true;
584
585 data->secondary = data->primary;
586 data->primary = chanctx_conf;
587 }
588
589 if (vif->type == NL80211_IFTYPE_AP) {
590 if (!mvmvif->ap_ibss_active)
591 return;
592
593 if (chanctx_conf == data->primary)
594 return;
595
596 if (!data->primary_ll) {
597 /*
598 * downgrade the current primary no matter what its
599 * type is.
600 */
601 data->secondary = data->primary;
602 data->primary = chanctx_conf;
603 } else {
604 /* there is low latency vif - we will be secondary */
605 data->secondary = chanctx_conf;
606 }
607 return;
608 }
609
610 /*
611 * STA / P2P Client, try to be primary if first vif. If we are in low
612 * latency mode, we are already in primary and just don't do much
613 */
614 if (!data->primary || data->primary == chanctx_conf)
615 data->primary = chanctx_conf;
616 else if (!data->secondary)
617 /* if secondary is not NULL, it might be a GO */
618 data->secondary = chanctx_conf;
619
620 /*
621 * don't reduce the Tx power if one of these is true:
622 * we are in LOOSE
623 * single share antenna product
624 * BT is active
625 * we are associated
626 */
627 if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
628 mvm->cfg->bt_shared_single_ant || !vif->bss_conf.assoc ||
629 le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF) {
630 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false);
631 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
632 return;
633 }
634
635 /* try to get the avg rssi from fw */
636 ave_rssi = mvmvif->bf_data.ave_beacon_signal;
637
638 /* if the RSSI isn't valid, fake it is very low */
639 if (!ave_rssi)
640 ave_rssi = -100;
641 if (ave_rssi > -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH) {
642 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true))
643 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
644 } else if (ave_rssi < -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH) {
645 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
646 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
647 }
648
649 /* Begin to monitor the RSSI: it may influence the reduced Tx power */
650 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
651 }
652
653 static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
654 {
655 struct iwl_bt_iterator_data data = {
656 .mvm = mvm,
657 .notif = &mvm->last_bt_notif,
658 };
659 struct iwl_bt_coex_ci_cmd cmd = {};
660 u8 ci_bw_idx;
661
662 /* Ignore updates if we are in force mode */
663 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
664 return;
665
666 rcu_read_lock();
667 ieee80211_iterate_active_interfaces_atomic(
668 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
669 iwl_mvm_bt_notif_iterator, &data);
670
671 if (data.primary) {
672 struct ieee80211_chanctx_conf *chan = data.primary;
673 if (WARN_ON(!chan->def.chan)) {
674 rcu_read_unlock();
675 return;
676 }
677
678 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
679 ci_bw_idx = 0;
680 } else {
681 if (chan->def.center_freq1 >
682 chan->def.chan->center_freq)
683 ci_bw_idx = 2;
684 else
685 ci_bw_idx = 1;
686 }
687
688 cmd.bt_primary_ci =
689 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
690 cmd.primary_ch_phy_id =
691 cpu_to_le32(*((u16 *)data.primary->drv_priv));
692 }
693
694 if (data.secondary) {
695 struct ieee80211_chanctx_conf *chan = data.secondary;
696 if (WARN_ON(!data.secondary->def.chan)) {
697 rcu_read_unlock();
698 return;
699 }
700
701 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
702 ci_bw_idx = 0;
703 } else {
704 if (chan->def.center_freq1 >
705 chan->def.chan->center_freq)
706 ci_bw_idx = 2;
707 else
708 ci_bw_idx = 1;
709 }
710
711 cmd.bt_secondary_ci =
712 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
713 cmd.secondary_ch_phy_id =
714 cpu_to_le32(*((u16 *)data.secondary->drv_priv));
715 }
716
717 rcu_read_unlock();
718
719 /* Don't spam the fw with the same command over and over */
720 if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) {
721 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0,
722 sizeof(cmd), &cmd))
723 IWL_ERR(mvm, "Failed to send BT_CI cmd\n");
724 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd));
725 }
726 }
727
728 void iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
729 struct iwl_rx_cmd_buffer *rxb)
730 {
731 struct iwl_rx_packet *pkt = rxb_addr(rxb);
732 struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data;
733
734 if (!fw_has_api(&mvm->fw->ucode_capa,
735 IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
736 iwl_mvm_rx_bt_coex_notif_old(mvm, rxb);
737 return;
738 }
739
740 IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
741 IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
742 IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
743 le32_to_cpu(notif->primary_ch_lut));
744 IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
745 le32_to_cpu(notif->secondary_ch_lut));
746 IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
747 le32_to_cpu(notif->bt_activity_grading));
748
749 /* remember this notification for future use: rssi fluctuations */
750 memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif));
751
752 iwl_mvm_bt_coex_notif_handle(mvm);
753 }
754
755 void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
756 enum ieee80211_rssi_event_data rssi_event)
757 {
758 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
759 int ret;
760
761 if (!fw_has_api(&mvm->fw->ucode_capa,
762 IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
763 iwl_mvm_bt_rssi_event_old(mvm, vif, rssi_event);
764 return;
765 }
766
767 lockdep_assert_held(&mvm->mutex);
768
769 /* Ignore updates if we are in force mode */
770 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
771 return;
772
773 /*
774 * Rssi update while not associated - can happen since the statistics
775 * are handled asynchronously
776 */
777 if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
778 return;
779
780 /* No BT - reports should be disabled */
781 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF)
782 return;
783
784 IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
785 rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
786
787 /*
788 * Check if rssi is good enough for reduced Tx power, but not in loose
789 * scheme.
790 */
791 if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
792 iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
793 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
794 false);
795 else
796 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true);
797
798 if (ret)
799 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
800 }
801
802 #define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000)
803 #define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
804
805 u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm,
806 struct ieee80211_sta *sta)
807 {
808 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
809 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
810 struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->phy_ctxt;
811 enum iwl_bt_coex_lut_type lut_type;
812
813 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_BT_COEX_SPLIT))
814 return iwl_mvm_coex_agg_time_limit_old(mvm, sta);
815
816 if (IWL_COEX_IS_TTC_ON(mvm->last_bt_notif.ttc_rrc_status, phy_ctxt->id))
817 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
818
819 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
820 BT_HIGH_TRAFFIC)
821 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
822
823 lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
824
825 if (lut_type == BT_COEX_LOOSE_LUT || lut_type == BT_COEX_INVALID_LUT)
826 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
827
828 /* tight coex, high bt traffic, reduce AGG time limit */
829 return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
830 }
831
832 bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
833 struct ieee80211_sta *sta)
834 {
835 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
836 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
837 struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->phy_ctxt;
838 enum iwl_bt_coex_lut_type lut_type;
839
840 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_BT_COEX_SPLIT))
841 return iwl_mvm_bt_coex_is_mimo_allowed_old(mvm, sta);
842
843 if (IWL_COEX_IS_TTC_ON(mvm->last_bt_notif.ttc_rrc_status, phy_ctxt->id))
844 return true;
845
846 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
847 BT_HIGH_TRAFFIC)
848 return true;
849
850 /*
851 * In Tight / TxTxDis, BT can't Rx while we Tx, so use both antennas
852 * since BT is already killed.
853 * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while
854 * we Tx.
855 * When we are in 5GHz, we'll get BT_COEX_INVALID_LUT allowing MIMO.
856 */
857 lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
858 return lut_type != BT_COEX_LOOSE_LUT;
859 }
860
861 bool iwl_mvm_bt_coex_is_ant_avail(struct iwl_mvm *mvm, u8 ant)
862 {
863 /* there is no other antenna, shared antenna is always available */
864 if (mvm->cfg->bt_shared_single_ant)
865 return true;
866
867 if (ant & mvm->cfg->non_shared_ant)
868 return true;
869
870 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_BT_COEX_SPLIT))
871 return iwl_mvm_bt_coex_is_shared_ant_avail_old(mvm);
872
873 return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
874 BT_HIGH_TRAFFIC;
875 }
876
877 bool iwl_mvm_bt_coex_is_shared_ant_avail(struct iwl_mvm *mvm)
878 {
879 /* there is no other antenna, shared antenna is always available */
880 if (mvm->cfg->bt_shared_single_ant)
881 return true;
882
883 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_BT_COEX_SPLIT))
884 return iwl_mvm_bt_coex_is_shared_ant_avail_old(mvm);
885
886 return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < BT_HIGH_TRAFFIC;
887 }
888
889 bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm,
890 enum ieee80211_band band)
891 {
892 u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading);
893
894 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_BT_COEX_SPLIT))
895 return iwl_mvm_bt_coex_is_tpc_allowed_old(mvm, band);
896
897 if (band != IEEE80211_BAND_2GHZ)
898 return false;
899
900 return bt_activity >= BT_LOW_TRAFFIC;
901 }
902
903 u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
904 struct ieee80211_tx_info *info, u8 ac)
905 {
906 __le16 fc = hdr->frame_control;
907
908 if (info->band != IEEE80211_BAND_2GHZ)
909 return 0;
910
911 if (unlikely(mvm->bt_tx_prio))
912 return mvm->bt_tx_prio - 1;
913
914 /* High prio packet (wrt. BT coex) if it is EAPOL, MCAST or MGMT */
915 if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO ||
916 is_multicast_ether_addr(hdr->addr1) ||
917 ieee80211_is_ctl(fc) || ieee80211_is_mgmt(fc) ||
918 ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc))
919 return 3;
920
921 switch (ac) {
922 case IEEE80211_AC_BE:
923 return 1;
924 case IEEE80211_AC_VO:
925 return 3;
926 case IEEE80211_AC_VI:
927 return 2;
928 default:
929 break;
930 }
931
932 return 0;
933 }
934
935 void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm)
936 {
937 if (!fw_has_api(&mvm->fw->ucode_capa,
938 IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
939 iwl_mvm_bt_coex_vif_change_old(mvm);
940 return;
941 }
942
943 iwl_mvm_bt_coex_notif_handle(mvm);
944 }
945
946 void iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm,
947 struct iwl_rx_cmd_buffer *rxb)
948 {
949 struct iwl_rx_packet *pkt = rxb_addr(rxb);
950 u32 ant_isolation = le32_to_cpup((void *)pkt->data);
951 struct iwl_bt_coex_corun_lut_update_cmd cmd = {};
952 u8 __maybe_unused lower_bound, upper_bound;
953 u8 lut;
954
955 if (!fw_has_api(&mvm->fw->ucode_capa,
956 IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
957 iwl_mvm_rx_ant_coupling_notif_old(mvm, rxb);
958 return;
959 }
960
961 if (!iwl_mvm_bt_is_plcr_supported(mvm))
962 return;
963
964 lockdep_assert_held(&mvm->mutex);
965
966 /* Ignore updates if we are in force mode */
967 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
968 return;
969
970 if (ant_isolation == mvm->last_ant_isol)
971 return;
972
973 for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++)
974 if (ant_isolation < antenna_coupling_ranges[lut + 1].range)
975 break;
976
977 lower_bound = antenna_coupling_ranges[lut].range;
978
979 if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1)
980 upper_bound = antenna_coupling_ranges[lut + 1].range;
981 else
982 upper_bound = antenna_coupling_ranges[lut].range;
983
984 IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n",
985 ant_isolation, lower_bound, upper_bound, lut);
986
987 mvm->last_ant_isol = ant_isolation;
988
989 if (mvm->last_corun_lut == lut)
990 return;
991
992 mvm->last_corun_lut = lut;
993
994 /* For the moment, use the same LUT for 20GHz and 40GHz */
995 memcpy(&cmd.corun_lut20, antenna_coupling_ranges[lut].lut20,
996 sizeof(cmd.corun_lut20));
997
998 memcpy(&cmd.corun_lut40, antenna_coupling_ranges[lut].lut20,
999 sizeof(cmd.corun_lut40));
1000
1001 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_CORUN_LUT, 0,
1002 sizeof(cmd), &cmd))
1003 IWL_ERR(mvm,
1004 "failed to send BT_COEX_UPDATE_CORUN_LUT command\n");
1005 }
Linux kernel - Deliverables
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