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authorEmmanuel Grumbach <emmanuel.grumbach@intel.com>2014-03-11 13:27:45 -0400
committerEmmanuel Grumbach <emmanuel.grumbach@intel.com>2014-03-11 13:49:39 -0400
commit5b7ff6158dc921fa9ae0c47a5a29a750d0d0ce60 (patch)
treec3c011f542c81fe39d66af926e15e1e9b8bfa8d0 /drivers/net/wireless/iwlwifi/mvm/coex.c
parentb9fae2d54c9ffceed7b57bfc9d4acb0de40b4ba8 (diff)
iwlwifi: mvm: make bt-coex.c generic
Make bt-coex generic to allow other coex mechanisms. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/coex.c')
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/coex.c1280
1 files changed, 1280 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/coex.c b/drivers/net/wireless/iwlwifi/mvm/coex.c
new file mode 100644
index 000000000000..0b2e351d4e52
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/mvm/coex.c
@@ -0,0 +1,1280 @@
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 *
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 *
33 * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved.
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
64#include <net/mac80211.h>
65
66#include "fw-api-coex.h"
67#include "iwl-modparams.h"
68#include "mvm.h"
69#include "iwl-debug.h"
70
71#define EVENT_PRIO_ANT(_evt, _prio, _shrd_ant) \
72 [(_evt)] = (((_prio) << BT_COEX_PRIO_TBL_PRIO_POS) | \
73 ((_shrd_ant) << BT_COEX_PRIO_TBL_SHRD_ANT_POS))
74
75static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
76 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB1,
77 BT_COEX_PRIO_TBL_PRIO_BYPASS, 0),
78 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB2,
79 BT_COEX_PRIO_TBL_PRIO_BYPASS, 1),
80 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW1,
81 BT_COEX_PRIO_TBL_PRIO_LOW, 0),
82 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW2,
83 BT_COEX_PRIO_TBL_PRIO_LOW, 1),
84 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH1,
85 BT_COEX_PRIO_TBL_PRIO_HIGH, 0),
86 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH2,
87 BT_COEX_PRIO_TBL_PRIO_HIGH, 1),
88 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_DTIM,
89 BT_COEX_PRIO_TBL_DISABLED, 0),
90 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN52,
91 BT_COEX_PRIO_TBL_PRIO_COEX_OFF, 0),
92 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN24,
93 BT_COEX_PRIO_TBL_PRIO_COEX_ON, 0),
94 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_IDLE,
95 BT_COEX_PRIO_TBL_PRIO_COEX_IDLE, 0),
96 0, 0, 0, 0, 0, 0,
97};
98
99#undef EVENT_PRIO_ANT
100
101#define BT_ENABLE_REDUCED_TXPOWER_THRESHOLD (-62)
102#define BT_DISABLE_REDUCED_TXPOWER_THRESHOLD (-65)
103#define BT_ANTENNA_COUPLING_THRESHOLD (30)
104
105int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm)
106{
107 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX))
108 return 0;
109
110 return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, CMD_SYNC,
111 sizeof(struct iwl_bt_coex_prio_tbl_cmd),
112 &iwl_bt_prio_tbl);
113}
114
115const u32 iwl_bt_ack_kill_msk[BT_KILL_MSK_MAX] = {
116 [BT_KILL_MSK_DEFAULT] = 0xffff0000,
117 [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff,
118 [BT_KILL_MSK_REDUCED_TXPOW] = 0,
119};
120
121const u32 iwl_bt_cts_kill_msk[BT_KILL_MSK_MAX] = {
122 [BT_KILL_MSK_DEFAULT] = 0xffff0000,
123 [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff,
124 [BT_KILL_MSK_REDUCED_TXPOW] = 0,
125};
126
127static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = {
128 cpu_to_le32(0xf0f0f0f0),
129 cpu_to_le32(0xc0c0c0c0),
130 cpu_to_le32(0xfcfcfcfc),
131 cpu_to_le32(0xff00ff00),
132};
133
134static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
135 {
136 cpu_to_le32(0x40000000),
137 cpu_to_le32(0x00000000),
138 cpu_to_le32(0x44000000),
139 cpu_to_le32(0x00000000),
140 cpu_to_le32(0x40000000),
141 cpu_to_le32(0x00000000),
142 cpu_to_le32(0x44000000),
143 cpu_to_le32(0x00000000),
144 cpu_to_le32(0xc0004000),
145 cpu_to_le32(0xf0005000),
146 cpu_to_le32(0xc0004000),
147 cpu_to_le32(0xf0005000),
148 },
149 {
150 cpu_to_le32(0x40000000),
151 cpu_to_le32(0x00000000),
152 cpu_to_le32(0x44000000),
153 cpu_to_le32(0x00000000),
154 cpu_to_le32(0x40000000),
155 cpu_to_le32(0x00000000),
156 cpu_to_le32(0x44000000),
157 cpu_to_le32(0x00000000),
158 cpu_to_le32(0xc0004000),
159 cpu_to_le32(0xf0005000),
160 cpu_to_le32(0xc0004000),
161 cpu_to_le32(0xf0005000),
162 },
163 {
164 cpu_to_le32(0x40000000),
165 cpu_to_le32(0x00000000),
166 cpu_to_le32(0x44000000),
167 cpu_to_le32(0x00000000),
168 cpu_to_le32(0x40000000),
169 cpu_to_le32(0x00000000),
170 cpu_to_le32(0x44000000),
171 cpu_to_le32(0x00000000),
172 cpu_to_le32(0xc0004000),
173 cpu_to_le32(0xf0005000),
174 cpu_to_le32(0xc0004000),
175 cpu_to_le32(0xf0005000),
176 },
177};
178
179static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
180 {
181 /* Tight */
182 cpu_to_le32(0xaaaaaaaa),
183 cpu_to_le32(0xaaaaaaaa),
184 cpu_to_le32(0xaeaaaaaa),
185 cpu_to_le32(0xaaaaaaaa),
186 cpu_to_le32(0xcc00ff28),
187 cpu_to_le32(0x0000aaaa),
188 cpu_to_le32(0xcc00aaaa),
189 cpu_to_le32(0x0000aaaa),
190 cpu_to_le32(0xc0004000),
191 cpu_to_le32(0x00000000),
192 cpu_to_le32(0xf0005000),
193 cpu_to_le32(0xf0005000),
194 },
195 {
196 /* Loose */
197 cpu_to_le32(0xaaaaaaaa),
198 cpu_to_le32(0xaaaaaaaa),
199 cpu_to_le32(0xaaaaaaaa),
200 cpu_to_le32(0xaaaaaaaa),
201 cpu_to_le32(0xcc00ff28),
202 cpu_to_le32(0x0000aaaa),
203 cpu_to_le32(0xcc00aaaa),
204 cpu_to_le32(0x0000aaaa),
205 cpu_to_le32(0x00000000),
206 cpu_to_le32(0x00000000),
207 cpu_to_le32(0xf0005000),
208 cpu_to_le32(0xf0005000),
209 },
210 {
211 /* Tx Tx disabled */
212 cpu_to_le32(0xaaaaaaaa),
213 cpu_to_le32(0xaaaaaaaa),
214 cpu_to_le32(0xaaaaaaaa),
215 cpu_to_le32(0xaaaaaaaa),
216 cpu_to_le32(0xcc00ff28),
217 cpu_to_le32(0x0000aaaa),
218 cpu_to_le32(0xcc00aaaa),
219 cpu_to_le32(0x0000aaaa),
220 cpu_to_le32(0xC0004000),
221 cpu_to_le32(0xC0004000),
222 cpu_to_le32(0xF0005000),
223 cpu_to_le32(0xF0005000),
224 },
225};
226
227/* 20MHz / 40MHz below / 40Mhz above*/
228static const __le64 iwl_ci_mask[][3] = {
229 /* dummy entry for channel 0 */
230 {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
231 {
232 cpu_to_le64(0x0000001FFFULL),
233 cpu_to_le64(0x0ULL),
234 cpu_to_le64(0x00007FFFFFULL),
235 },
236 {
237 cpu_to_le64(0x000000FFFFULL),
238 cpu_to_le64(0x0ULL),
239 cpu_to_le64(0x0003FFFFFFULL),
240 },
241 {
242 cpu_to_le64(0x000003FFFCULL),
243 cpu_to_le64(0x0ULL),
244 cpu_to_le64(0x000FFFFFFCULL),
245 },
246 {
247 cpu_to_le64(0x00001FFFE0ULL),
248 cpu_to_le64(0x0ULL),
249 cpu_to_le64(0x007FFFFFE0ULL),
250 },
251 {
252 cpu_to_le64(0x00007FFF80ULL),
253 cpu_to_le64(0x00007FFFFFULL),
254 cpu_to_le64(0x01FFFFFF80ULL),
255 },
256 {
257 cpu_to_le64(0x0003FFFC00ULL),
258 cpu_to_le64(0x0003FFFFFFULL),
259 cpu_to_le64(0x0FFFFFFC00ULL),
260 },
261 {
262 cpu_to_le64(0x000FFFF000ULL),
263 cpu_to_le64(0x000FFFFFFCULL),
264 cpu_to_le64(0x3FFFFFF000ULL),
265 },
266 {
267 cpu_to_le64(0x007FFF8000ULL),
268 cpu_to_le64(0x007FFFFFE0ULL),
269 cpu_to_le64(0xFFFFFF8000ULL),
270 },
271 {
272 cpu_to_le64(0x01FFFE0000ULL),
273 cpu_to_le64(0x01FFFFFF80ULL),
274 cpu_to_le64(0xFFFFFE0000ULL),
275 },
276 {
277 cpu_to_le64(0x0FFFF00000ULL),
278 cpu_to_le64(0x0FFFFFFC00ULL),
279 cpu_to_le64(0x0ULL),
280 },
281 {
282 cpu_to_le64(0x3FFFC00000ULL),
283 cpu_to_le64(0x3FFFFFF000ULL),
284 cpu_to_le64(0x0)
285 },
286 {
287 cpu_to_le64(0xFFFE000000ULL),
288 cpu_to_le64(0xFFFFFF8000ULL),
289 cpu_to_le64(0x0)
290 },
291 {
292 cpu_to_le64(0xFFF8000000ULL),
293 cpu_to_le64(0xFFFFFE0000ULL),
294 cpu_to_le64(0x0)
295 },
296 {
297 cpu_to_le64(0xFFC0000000ULL),
298 cpu_to_le64(0x0ULL),
299 cpu_to_le64(0x0ULL)
300 },
301};
302
303static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = {
304 cpu_to_le32(0x22002200),
305 cpu_to_le32(0x33113311),
306};
307
308struct corunning_block_luts {
309 u8 range;
310 __le32 lut20[BT_COEX_CORUN_LUT_SIZE];
311};
312
313/*
314 * Ranges for the antenna coupling calibration / co-running block LUT:
315 * LUT0: [ 0, 12[
316 * LUT1: [12, 20[
317 * LUT2: [20, 21[
318 * LUT3: [21, 23[
319 * LUT4: [23, 27[
320 * LUT5: [27, 30[
321 * LUT6: [30, 32[
322 * LUT7: [32, 33[
323 * LUT8: [33, - [
324 */
325static const struct corunning_block_luts antenna_coupling_ranges[] = {
326 {
327 .range = 0,
328 .lut20 = {
329 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
330 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
331 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
332 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
333 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
334 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
335 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
336 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
337 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
338 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
339 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
340 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
341 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
342 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
343 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
344 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
345 },
346 },
347 {
348 .range = 12,
349 .lut20 = {
350 cpu_to_le32(0x00000001), cpu_to_le32(0x00000000),
351 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
352 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
353 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
354 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
355 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
356 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
357 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
358 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
359 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
360 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
361 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
362 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
363 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
364 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
365 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
366 },
367 },
368 {
369 .range = 20,
370 .lut20 = {
371 cpu_to_le32(0x00000002), cpu_to_le32(0x00000000),
372 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
373 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
374 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
375 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
376 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
377 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
378 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
379 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
380 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
381 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
382 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
383 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
384 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
385 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
386 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
387 },
388 },
389 {
390 .range = 21,
391 .lut20 = {
392 cpu_to_le32(0x00000003), cpu_to_le32(0x00000000),
393 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
394 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
395 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
396 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
397 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
398 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
399 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
400 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
401 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
402 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
403 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
404 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
405 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
406 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
407 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
408 },
409 },
410 {
411 .range = 23,
412 .lut20 = {
413 cpu_to_le32(0x00000004), cpu_to_le32(0x00000000),
414 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
415 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
416 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
417 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
418 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
419 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
420 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
421 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
422 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
423 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
424 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
425 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
426 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
427 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
428 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
429 },
430 },
431 {
432 .range = 27,
433 .lut20 = {
434 cpu_to_le32(0x00000005), cpu_to_le32(0x00000000),
435 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
436 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
437 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
438 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
439 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
440 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
441 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
442 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
443 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
444 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
445 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
446 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
447 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
448 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
449 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
450 },
451 },
452 {
453 .range = 30,
454 .lut20 = {
455 cpu_to_le32(0x00000006), cpu_to_le32(0x00000000),
456 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
457 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
458 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
459 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
460 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
461 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
462 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
463 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
464 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
465 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
466 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
467 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
468 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
469 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
470 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
471 },
472 },
473 {
474 .range = 32,
475 .lut20 = {
476 cpu_to_le32(0x00000007), cpu_to_le32(0x00000000),
477 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
478 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
479 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
480 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
481 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
482 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
483 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
484 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
485 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
486 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
487 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
488 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
489 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
490 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
491 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
492 },
493 },
494 {
495 .range = 33,
496 .lut20 = {
497 cpu_to_le32(0x00000008), cpu_to_le32(0x00000000),
498 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
499 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
500 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
501 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
502 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
503 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
504 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
505 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
506 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
507 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
508 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
509 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
510 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
511 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
512 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
513 },
514 },
515};
516
517static enum iwl_bt_coex_lut_type
518iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
519{
520 struct ieee80211_chanctx_conf *chanctx_conf;
521 enum iwl_bt_coex_lut_type ret;
522 u16 phy_ctx_id;
523
524 /*
525 * Checking that we hold mvm->mutex is a good idea, but the rate
526 * control can't acquire the mutex since it runs in Tx path.
527 * So this is racy in that case, but in the worst case, the AMPDU
528 * size limit will be wrong for a short time which is not a big
529 * issue.
530 */
531
532 rcu_read_lock();
533
534 chanctx_conf = rcu_dereference(vif->chanctx_conf);
535
536 if (!chanctx_conf ||
537 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
538 rcu_read_unlock();
539 return BT_COEX_LOOSE_LUT;
540 }
541
542 ret = BT_COEX_TX_DIS_LUT;
543
544 if (mvm->cfg->bt_shared_single_ant) {
545 rcu_read_unlock();
546 return ret;
547 }
548
549 phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
550
551 if (mvm->last_bt_ci_cmd.primary_ch_phy_id == phy_ctx_id)
552 ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut);
553 else if (mvm->last_bt_ci_cmd.secondary_ch_phy_id == phy_ctx_id)
554 ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut);
555 /* else - default = TX TX disallowed */
556
557 rcu_read_unlock();
558
559 return ret;
560}
561
562int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
563{
564 struct iwl_bt_coex_cmd *bt_cmd;
565 struct iwl_host_cmd cmd = {
566 .id = BT_CONFIG,
567 .len = { sizeof(*bt_cmd), },
568 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
569 .flags = CMD_SYNC,
570 };
571 int ret;
572 u32 flags;
573
574 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX))
575 return 0;
576
577 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
578 if (!bt_cmd)
579 return -ENOMEM;
580 cmd.data[0] = bt_cmd;
581
582 bt_cmd->max_kill = 5;
583 bt_cmd->bt4_antenna_isolation_thr = BT_ANTENNA_COUPLING_THRESHOLD,
584 bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling,
585 bt_cmd->bt4_tx_tx_delta_freq_thr = 15,
586 bt_cmd->bt4_tx_rx_max_freq0 = 15,
587
588 flags = iwlwifi_mod_params.bt_coex_active ?
589 BT_COEX_NW : BT_COEX_DISABLE;
590 bt_cmd->flags = cpu_to_le32(flags);
591
592 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE |
593 BT_VALID_BT_PRIO_BOOST |
594 BT_VALID_MAX_KILL |
595 BT_VALID_3W_TMRS |
596 BT_VALID_KILL_ACK |
597 BT_VALID_KILL_CTS |
598 BT_VALID_REDUCED_TX_POWER |
599 BT_VALID_LUT |
600 BT_VALID_WIFI_RX_SW_PRIO_BOOST |
601 BT_VALID_WIFI_TX_SW_PRIO_BOOST |
602 BT_VALID_ANT_ISOLATION |
603 BT_VALID_ANT_ISOLATION_THRS |
604 BT_VALID_TXTX_DELTA_FREQ_THRS |
605 BT_VALID_TXRX_MAX_FREQ_0 |
606 BT_VALID_SYNC_TO_SCO);
607
608 if (IWL_MVM_BT_COEX_SYNC2SCO)
609 bt_cmd->flags |= cpu_to_le32(BT_COEX_SYNC2SCO);
610
611 if (IWL_MVM_BT_COEX_CORUNNING) {
612 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_CORUN_LUT_20 |
613 BT_VALID_CORUN_LUT_40);
614 bt_cmd->flags |= cpu_to_le32(BT_COEX_CORUNNING);
615 }
616
617 if (mvm->cfg->bt_shared_single_ant)
618 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant,
619 sizeof(iwl_single_shared_ant));
620 else
621 memcpy(&bt_cmd->decision_lut, iwl_combined_lookup,
622 sizeof(iwl_combined_lookup));
623
624 /* Take first Co-running block LUT to get started */
625 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[0].lut20,
626 sizeof(bt_cmd->bt4_corun_lut20));
627 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[0].lut20,
628 sizeof(bt_cmd->bt4_corun_lut40));
629
630 memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost,
631 sizeof(iwl_bt_prio_boost));
632 memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut,
633 sizeof(iwl_bt_mprio_lut));
634 bt_cmd->kill_ack_msk =
635 cpu_to_le32(iwl_bt_ack_kill_msk[BT_KILL_MSK_DEFAULT]);
636 bt_cmd->kill_cts_msk =
637 cpu_to_le32(iwl_bt_cts_kill_msk[BT_KILL_MSK_DEFAULT]);
638
639 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
640 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
641
642 ret = iwl_mvm_send_cmd(mvm, &cmd);
643
644 kfree(bt_cmd);
645 return ret;
646}
647
648static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm,
649 bool reduced_tx_power)
650{
651 enum iwl_bt_kill_msk bt_kill_msk;
652 struct iwl_bt_coex_cmd *bt_cmd;
653 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
654 struct iwl_host_cmd cmd = {
655 .id = BT_CONFIG,
656 .data[0] = &bt_cmd,
657 .len = { sizeof(*bt_cmd), },
658 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
659 .flags = CMD_SYNC,
660 };
661 int ret = 0;
662
663 lockdep_assert_held(&mvm->mutex);
664
665 if (reduced_tx_power) {
666 /* Reduced Tx power has precedence on the type of the profile */
667 bt_kill_msk = BT_KILL_MSK_REDUCED_TXPOW;
668 } else {
669 /* Low latency BT profile is active: give higher prio to BT */
670 if (BT_MBOX_MSG(notif, 3, SCO_STATE) ||
671 BT_MBOX_MSG(notif, 3, A2DP_STATE) ||
672 BT_MBOX_MSG(notif, 3, SNIFF_STATE))
673 bt_kill_msk = BT_KILL_MSK_SCO_HID_A2DP;
674 else
675 bt_kill_msk = BT_KILL_MSK_DEFAULT;
676 }
677
678 IWL_DEBUG_COEX(mvm,
679 "Update kill_msk: %d - SCO %sactive A2DP %sactive SNIFF %sactive\n",
680 bt_kill_msk,
681 BT_MBOX_MSG(notif, 3, SCO_STATE) ? "" : "in",
682 BT_MBOX_MSG(notif, 3, A2DP_STATE) ? "" : "in",
683 BT_MBOX_MSG(notif, 3, SNIFF_STATE) ? "" : "in");
684
685 /* Don't send HCMD if there is no update */
686 if (bt_kill_msk == mvm->bt_kill_msk)
687 return 0;
688
689 mvm->bt_kill_msk = bt_kill_msk;
690
691 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
692 if (!bt_cmd)
693 return -ENOMEM;
694 cmd.data[0] = bt_cmd;
695 bt_cmd->flags = cpu_to_le32(BT_COEX_NW);
696
697 bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ack_kill_msk[bt_kill_msk]);
698 bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_cts_kill_msk[bt_kill_msk]);
699 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
700 BT_VALID_KILL_ACK |
701 BT_VALID_KILL_CTS);
702
703 IWL_DEBUG_COEX(mvm, "ACK Kill msk = 0x%08x, CTS Kill msk = 0x%08x\n",
704 iwl_bt_ack_kill_msk[bt_kill_msk],
705 iwl_bt_cts_kill_msk[bt_kill_msk]);
706
707 ret = iwl_mvm_send_cmd(mvm, &cmd);
708
709 kfree(bt_cmd);
710 return ret;
711}
712
713int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id, bool enable)
714{
715 struct iwl_bt_coex_cmd *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_dbg ||
732 mvmsta->bt_reduced_txpower == enable)
733 return 0;
734
735 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC);
736 if (!bt_cmd)
737 return -ENOMEM;
738 cmd.data[0] = bt_cmd;
739 bt_cmd->flags = cpu_to_le32(BT_COEX_NW);
740
741 bt_cmd->valid_bit_msk =
742 cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER);
743 bt_cmd->bt_reduced_tx_power = sta_id;
744
745 if (enable)
746 bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT;
747
748 IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
749 enable ? "en" : "dis", sta_id);
750
751 mvmsta->bt_reduced_txpower = enable;
752
753 ret = iwl_mvm_send_cmd(mvm, &cmd);
754
755 kfree(bt_cmd);
756 return ret;
757}
758
759struct iwl_bt_iterator_data {
760 struct iwl_bt_coex_profile_notif *notif;
761 struct iwl_mvm *mvm;
762 u32 num_bss_ifaces;
763 bool reduced_tx_power;
764 struct ieee80211_chanctx_conf *primary;
765 struct ieee80211_chanctx_conf *secondary;
766 bool primary_ll;
767};
768
769static inline
770void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
771 struct ieee80211_vif *vif,
772 bool enable, int rssi)
773{
774 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
775
776 mvmvif->bf_data.last_bt_coex_event = rssi;
777 mvmvif->bf_data.bt_coex_max_thold =
778 enable ? BT_ENABLE_REDUCED_TXPOWER_THRESHOLD : 0;
779 mvmvif->bf_data.bt_coex_min_thold =
780 enable ? BT_DISABLE_REDUCED_TXPOWER_THRESHOLD : 0;
781}
782
783/* must be called under rcu_read_lock */
784static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
785 struct ieee80211_vif *vif)
786{
787 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
788 struct iwl_bt_iterator_data *data = _data;
789 struct iwl_mvm *mvm = data->mvm;
790 struct ieee80211_chanctx_conf *chanctx_conf;
791 enum ieee80211_smps_mode smps_mode;
792 u32 bt_activity_grading;
793 int ave_rssi;
794
795 lockdep_assert_held(&mvm->mutex);
796
797 switch (vif->type) {
798 case NL80211_IFTYPE_STATION:
799 /* default smps_mode for BSS / P2P client is AUTOMATIC */
800 smps_mode = IEEE80211_SMPS_AUTOMATIC;
801 data->num_bss_ifaces++;
802
803 /*
804 * Count unassoc BSSes, relax SMSP constraints
805 * and disable reduced Tx Power
806 */
807 if (!vif->bss_conf.assoc) {
808 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
809 smps_mode);
810 if (iwl_mvm_bt_coex_reduced_txp(mvm,
811 mvmvif->ap_sta_id,
812 false))
813 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
814 return;
815 }
816 break;
817 case NL80211_IFTYPE_AP:
818 /* default smps_mode for AP / GO is OFF */
819 smps_mode = IEEE80211_SMPS_OFF;
820 if (!mvmvif->ap_ibss_active) {
821 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
822 smps_mode);
823 return;
824 }
825
826 /* the Ack / Cts kill mask must be default if AP / GO */
827 data->reduced_tx_power = false;
828 break;
829 default:
830 return;
831 }
832
833 chanctx_conf = rcu_dereference(vif->chanctx_conf);
834
835 /* If channel context is invalid or not on 2.4GHz .. */
836 if ((!chanctx_conf ||
837 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) {
838 /* ... relax constraints and disable rssi events */
839 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
840 smps_mode);
841 if (vif->type == NL80211_IFTYPE_STATION)
842 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
843 return;
844 }
845
846 bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
847 if (bt_activity_grading >= BT_HIGH_TRAFFIC)
848 smps_mode = IEEE80211_SMPS_STATIC;
849 else if (bt_activity_grading >= BT_LOW_TRAFFIC)
850 smps_mode = vif->type == NL80211_IFTYPE_AP ?
851 IEEE80211_SMPS_OFF :
852 IEEE80211_SMPS_DYNAMIC;
853 IWL_DEBUG_COEX(data->mvm,
854 "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n",
855 mvmvif->id, data->notif->bt_status, bt_activity_grading,
856 smps_mode);
857
858 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, smps_mode);
859
860 /* low latency is always primary */
861 if (iwl_mvm_vif_low_latency(mvmvif)) {
862 data->primary_ll = true;
863
864 data->secondary = data->primary;
865 data->primary = chanctx_conf;
866 }
867
868 if (vif->type == NL80211_IFTYPE_AP) {
869 if (!mvmvif->ap_ibss_active)
870 return;
871
872 if (chanctx_conf == data->primary)
873 return;
874
875 if (!data->primary_ll) {
876 /*
877 * downgrade the current primary no matter what its
878 * type is.
879 */
880 data->secondary = data->primary;
881 data->primary = chanctx_conf;
882 } else {
883 /* there is low latency vif - we will be secondary */
884 data->secondary = chanctx_conf;
885 }
886 return;
887 }
888
889 /*
890 * STA / P2P Client, try to be primary if first vif. If we are in low
891 * latency mode, we are already in primary and just don't do much
892 */
893 if (!data->primary || data->primary == chanctx_conf)
894 data->primary = chanctx_conf;
895 else if (!data->secondary)
896 /* if secondary is not NULL, it might be a GO */
897 data->secondary = chanctx_conf;
898
899 /* don't reduce the Tx power if in loose scheme */
900 if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
901 mvm->cfg->bt_shared_single_ant) {
902 data->reduced_tx_power = false;
903 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
904 return;
905 }
906
907 /* reduced Txpower only if BT is on, so ...*/
908 if (!data->notif->bt_status) {
909 /* ... cancel reduced Tx power ... */
910 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
911 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
912 data->reduced_tx_power = false;
913
914 /* ... and there is no need to get reports on RSSI any more. */
915 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
916 return;
917 }
918
919 /* try to get the avg rssi from fw */
920 ave_rssi = mvmvif->bf_data.ave_beacon_signal;
921
922 /* if the RSSI isn't valid, fake it is very low */
923 if (!ave_rssi)
924 ave_rssi = -100;
925 if (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) {
926 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true))
927 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
928
929 /*
930 * bt_kill_msk can be BT_KILL_MSK_REDUCED_TXPOW only if all the
931 * BSS / P2P clients have rssi above threshold.
932 * We set the bt_kill_msk to BT_KILL_MSK_REDUCED_TXPOW before
933 * the iteration, if one interface's rssi isn't good enough,
934 * bt_kill_msk will be set to default values.
935 */
936 } else if (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) {
937 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
938 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
939
940 /*
941 * One interface hasn't rssi above threshold, bt_kill_msk must
942 * be set to default values.
943 */
944 data->reduced_tx_power = false;
945 }
946
947 /* Begin to monitor the RSSI: it may influence the reduced Tx power */
948 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
949}
950
951static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
952{
953 struct iwl_bt_iterator_data data = {
954 .mvm = mvm,
955 .notif = &mvm->last_bt_notif,
956 .reduced_tx_power = true,
957 };
958 struct iwl_bt_coex_ci_cmd cmd = {};
959 u8 ci_bw_idx;
960
961 rcu_read_lock();
962 ieee80211_iterate_active_interfaces_atomic(
963 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
964 iwl_mvm_bt_notif_iterator, &data);
965
966 if (data.primary) {
967 struct ieee80211_chanctx_conf *chan = data.primary;
968 if (WARN_ON(!chan->def.chan)) {
969 rcu_read_unlock();
970 return;
971 }
972
973 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
974 ci_bw_idx = 0;
975 cmd.co_run_bw_primary = 0;
976 } else {
977 cmd.co_run_bw_primary = 1;
978 if (chan->def.center_freq1 >
979 chan->def.chan->center_freq)
980 ci_bw_idx = 2;
981 else
982 ci_bw_idx = 1;
983 }
984
985 cmd.bt_primary_ci =
986 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
987 cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv);
988 }
989
990 if (data.secondary) {
991 struct ieee80211_chanctx_conf *chan = data.secondary;
992 if (WARN_ON(!data.secondary->def.chan)) {
993 rcu_read_unlock();
994 return;
995 }
996
997 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
998 ci_bw_idx = 0;
999 cmd.co_run_bw_secondary = 0;
1000 } else {
1001 cmd.co_run_bw_secondary = 1;
1002 if (chan->def.center_freq1 >
1003 chan->def.chan->center_freq)
1004 ci_bw_idx = 2;
1005 else
1006 ci_bw_idx = 1;
1007 }
1008
1009 cmd.bt_secondary_ci =
1010 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
1011 cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv);
1012 }
1013
1014 rcu_read_unlock();
1015
1016 /* Don't spam the fw with the same command over and over */
1017 if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) {
1018 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, CMD_SYNC,
1019 sizeof(cmd), &cmd))
1020 IWL_ERR(mvm, "Failed to send BT_CI cmd");
1021 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd));
1022 }
1023
1024 /*
1025 * If there are no BSS / P2P client interfaces, reduced Tx Power is
1026 * irrelevant since it is based on the RSSI coming from the beacon.
1027 * Use BT_KILL_MSK_DEFAULT in that case.
1028 */
1029 data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces;
1030
1031 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power))
1032 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
1033}
1034
1035/* upon association, the fw will send in BT Coex notification */
1036int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
1037 struct iwl_rx_cmd_buffer *rxb,
1038 struct iwl_device_cmd *dev_cmd)
1039{
1040 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1041 struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data;
1042
1043
1044 IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
1045 IWL_DEBUG_COEX(mvm, "\tBT status: %s\n",
1046 notif->bt_status ? "ON" : "OFF");
1047 IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn);
1048 IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
1049 IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
1050 le32_to_cpu(notif->primary_ch_lut));
1051 IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
1052 le32_to_cpu(notif->secondary_ch_lut));
1053 IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
1054 le32_to_cpu(notif->bt_activity_grading));
1055 IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n",
1056 notif->bt_agg_traffic_load);
1057
1058 /* remember this notification for future use: rssi fluctuations */
1059 memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif));
1060
1061 iwl_mvm_bt_coex_notif_handle(mvm);
1062
1063 /*
1064 * This is an async handler for a notification, returning anything other
1065 * than 0 doesn't make sense even if HCMD failed.
1066 */
1067 return 0;
1068}
1069
1070static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
1071 struct ieee80211_vif *vif)
1072{
1073 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1074 struct iwl_bt_iterator_data *data = _data;
1075 struct iwl_mvm *mvm = data->mvm;
1076
1077 struct ieee80211_sta *sta;
1078 struct iwl_mvm_sta *mvmsta;
1079
1080 struct ieee80211_chanctx_conf *chanctx_conf;
1081
1082 rcu_read_lock();
1083 chanctx_conf = rcu_dereference(vif->chanctx_conf);
1084 /* If channel context is invalid or not on 2.4GHz - don't count it */
1085 if (!chanctx_conf ||
1086 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
1087 rcu_read_unlock();
1088 return;
1089 }
1090 rcu_read_unlock();
1091
1092 if (vif->type != NL80211_IFTYPE_STATION ||
1093 mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1094 return;
1095
1096 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1097 lockdep_is_held(&mvm->mutex));
1098
1099 /* This can happen if the station has been removed right now */
1100 if (IS_ERR_OR_NULL(sta))
1101 return;
1102
1103 mvmsta = iwl_mvm_sta_from_mac80211(sta);
1104
1105 data->num_bss_ifaces++;
1106
1107 /*
1108 * This interface doesn't support reduced Tx power (because of low
1109 * RSSI probably), then set bt_kill_msk to default values.
1110 */
1111 if (!mvmsta->bt_reduced_txpower)
1112 data->reduced_tx_power = false;
1113 /* else - possibly leave it to BT_KILL_MSK_REDUCED_TXPOW */
1114}
1115
1116void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1117 enum ieee80211_rssi_event rssi_event)
1118{
1119 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1120 struct iwl_bt_iterator_data data = {
1121 .mvm = mvm,
1122 .reduced_tx_power = true,
1123 };
1124 int ret;
1125
1126 lockdep_assert_held(&mvm->mutex);
1127
1128 /* Rssi update while not associated ?! */
1129 if (WARN_ON_ONCE(mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT))
1130 return;
1131
1132 /* No BT - reports should be disabled */
1133 if (!mvm->last_bt_notif.bt_status)
1134 return;
1135
1136 IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
1137 rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
1138
1139 /*
1140 * Check if rssi is good enough for reduced Tx power, but not in loose
1141 * scheme.
1142 */
1143 if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
1144 iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
1145 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
1146 false);
1147 else
1148 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true);
1149
1150 if (ret)
1151 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
1152
1153 ieee80211_iterate_active_interfaces_atomic(
1154 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1155 iwl_mvm_bt_rssi_iterator, &data);
1156
1157 /*
1158 * If there are no BSS / P2P client interfaces, reduced Tx Power is
1159 * irrelevant since it is based on the RSSI coming from the beacon.
1160 * Use BT_KILL_MSK_DEFAULT in that case.
1161 */
1162 data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces;
1163
1164 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power))
1165 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
1166}
1167
1168#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000)
1169#define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
1170
1171u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm,
1172 struct ieee80211_sta *sta)
1173{
1174 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1175 enum iwl_bt_coex_lut_type lut_type;
1176
1177 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
1178 BT_HIGH_TRAFFIC)
1179 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1180
1181 lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1182
1183 if (lut_type == BT_COEX_LOOSE_LUT)
1184 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1185
1186 /* tight coex, high bt traffic, reduce AGG time limit */
1187 return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
1188}
1189
1190bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
1191 struct ieee80211_sta *sta)
1192{
1193 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1194
1195 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
1196 BT_HIGH_TRAFFIC)
1197 return true;
1198
1199 /*
1200 * In Tight, BT can't Rx while we Tx, so use both antennas since BT is
1201 * already killed.
1202 * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while we
1203 * Tx.
1204 */
1205 return iwl_get_coex_type(mvm, mvmsta->vif) == BT_COEX_TIGHT_LUT;
1206}
1207
1208void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm)
1209{
1210 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX))
1211 return;
1212
1213 iwl_mvm_bt_coex_notif_handle(mvm);
1214}
1215
1216int iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm,
1217 struct iwl_rx_cmd_buffer *rxb,
1218 struct iwl_device_cmd *dev_cmd)
1219{
1220 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1221 u32 ant_isolation = le32_to_cpup((void *)pkt->data);
1222 u8 __maybe_unused lower_bound, upper_bound;
1223 u8 lut;
1224
1225 struct iwl_bt_coex_cmd *bt_cmd;
1226 struct iwl_host_cmd cmd = {
1227 .id = BT_CONFIG,
1228 .len = { sizeof(*bt_cmd), },
1229 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
1230 .flags = CMD_SYNC,
1231 };
1232
1233 if (!IWL_MVM_BT_COEX_CORUNNING)
1234 return 0;
1235
1236 lockdep_assert_held(&mvm->mutex);
1237
1238 if (ant_isolation == mvm->last_ant_isol)
1239 return 0;
1240
1241 for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++)
1242 if (ant_isolation < antenna_coupling_ranges[lut + 1].range)
1243 break;
1244
1245 lower_bound = antenna_coupling_ranges[lut].range;
1246
1247 if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1)
1248 upper_bound = antenna_coupling_ranges[lut + 1].range;
1249 else
1250 upper_bound = antenna_coupling_ranges[lut].range;
1251
1252 IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n",
1253 ant_isolation, lower_bound, upper_bound, lut);
1254
1255 mvm->last_ant_isol = ant_isolation;
1256
1257 if (mvm->last_corun_lut == lut)
1258 return 0;
1259
1260 mvm->last_corun_lut = lut;
1261
1262 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
1263 if (!bt_cmd)
1264 return 0;
1265 cmd.data[0] = bt_cmd;
1266
1267 bt_cmd->flags = cpu_to_le32(BT_COEX_NW);
1268 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
1269 BT_VALID_CORUN_LUT_20 |
1270 BT_VALID_CORUN_LUT_40);
1271
1272 /* For the moment, use the same LUT for 20GHz and 40GHz */
1273 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[lut].lut20,
1274 sizeof(bt_cmd->bt4_corun_lut20));
1275
1276 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[lut].lut20,
1277 sizeof(bt_cmd->bt4_corun_lut40));
1278
1279 return 0;
1280}
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-23 03:10:28 -0500