blob: 018d75c805addd9c48021bebbbe22f6701c01fd4 [file] [log] [blame]
Emmanuel Grumbach931d4162013-01-17 09:42:25 +02001/******************************************************************************
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 *
Emmanuel Grumbach51368bf2013-12-30 13:15:54 +02008 * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved.
Emmanuel Grumbach931d4162013-01-17 09:42:25 +02009 *
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 *
Emmanuel Grumbach51368bf2013-12-30 13:15:54 +020033 * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved.
Emmanuel Grumbach931d4162013-01-17 09:42:25 +020034 * 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
Emmanuel Grumbachee7bea52014-03-06 10:30:49 +020064#include <linux/ieee80211.h>
65#include <linux/etherdevice.h>
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +020066#include <net/mac80211.h>
67
Emmanuel Grumbach5b7ff612014-03-11 19:27:45 +020068#include "fw-api-coex.h"
Emmanuel Grumbach931d4162013-01-17 09:42:25 +020069#include "iwl-modparams.h"
70#include "mvm.h"
Emmanuel Grumbachf421f9c2013-01-17 14:20:29 +020071#include "iwl-debug.h"
Emmanuel Grumbach931d4162013-01-17 09:42:25 +020072
73#define EVENT_PRIO_ANT(_evt, _prio, _shrd_ant) \
74 [(_evt)] = (((_prio) << BT_COEX_PRIO_TBL_PRIO_POS) | \
75 ((_shrd_ant) << BT_COEX_PRIO_TBL_SHRD_ANT_POS))
76
77static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
78 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB1,
79 BT_COEX_PRIO_TBL_PRIO_BYPASS, 0),
80 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB2,
81 BT_COEX_PRIO_TBL_PRIO_BYPASS, 1),
82 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW1,
83 BT_COEX_PRIO_TBL_PRIO_LOW, 0),
84 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW2,
85 BT_COEX_PRIO_TBL_PRIO_LOW, 1),
86 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH1,
87 BT_COEX_PRIO_TBL_PRIO_HIGH, 0),
88 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH2,
89 BT_COEX_PRIO_TBL_PRIO_HIGH, 1),
90 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_DTIM,
91 BT_COEX_PRIO_TBL_DISABLED, 0),
92 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN52,
93 BT_COEX_PRIO_TBL_PRIO_COEX_OFF, 0),
94 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN24,
95 BT_COEX_PRIO_TBL_PRIO_COEX_ON, 0),
96 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_IDLE,
97 BT_COEX_PRIO_TBL_PRIO_COEX_IDLE, 0),
98 0, 0, 0, 0, 0, 0,
99};
100
101#undef EVENT_PRIO_ANT
102
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200103#define BT_ENABLE_REDUCED_TXPOWER_THRESHOLD (-62)
104#define BT_DISABLE_REDUCED_TXPOWER_THRESHOLD (-65)
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300105#define BT_ANTENNA_COUPLING_THRESHOLD (30)
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200106
Emmanuel Grumbach931d4162013-01-17 09:42:25 +0200107int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm)
108{
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300109 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX))
110 return 0;
111
Emmanuel Grumbach931d4162013-01-17 09:42:25 +0200112 return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, CMD_SYNC,
113 sizeof(struct iwl_bt_coex_prio_tbl_cmd),
114 &iwl_bt_prio_tbl);
115}
116
Emmanuel Grumbach2de13ca2013-06-30 07:43:28 +0300117const u32 iwl_bt_ack_kill_msk[BT_KILL_MSK_MAX] = {
Emmanuel Grumbach5b7e6622013-03-10 20:15:24 +0200118 [BT_KILL_MSK_DEFAULT] = 0xffff0000,
119 [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff,
120 [BT_KILL_MSK_REDUCED_TXPOW] = 0,
Emmanuel Grumbach931d4162013-01-17 09:42:25 +0200121};
122
Emmanuel Grumbach2de13ca2013-06-30 07:43:28 +0300123const u32 iwl_bt_cts_kill_msk[BT_KILL_MSK_MAX] = {
Emmanuel Grumbach5b7e6622013-03-10 20:15:24 +0200124 [BT_KILL_MSK_DEFAULT] = 0xffff0000,
125 [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff,
126 [BT_KILL_MSK_REDUCED_TXPOW] = 0,
Emmanuel Grumbach931d4162013-01-17 09:42:25 +0200127};
128
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300129static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = {
130 cpu_to_le32(0xf0f0f0f0),
131 cpu_to_le32(0xc0c0c0c0),
132 cpu_to_le32(0xfcfcfcfc),
133 cpu_to_le32(0xff00ff00),
Emmanuel Grumbach931d4162013-01-17 09:42:25 +0200134};
135
Emmanuel Grumbachd1d5e3c2013-09-11 13:33:28 +0300136static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
137 {
138 cpu_to_le32(0x40000000),
139 cpu_to_le32(0x00000000),
140 cpu_to_le32(0x44000000),
141 cpu_to_le32(0x00000000),
142 cpu_to_le32(0x40000000),
143 cpu_to_le32(0x00000000),
144 cpu_to_le32(0x44000000),
145 cpu_to_le32(0x00000000),
146 cpu_to_le32(0xc0004000),
147 cpu_to_le32(0xf0005000),
148 cpu_to_le32(0xc0004000),
149 cpu_to_le32(0xf0005000),
150 },
151 {
152 cpu_to_le32(0x40000000),
153 cpu_to_le32(0x00000000),
154 cpu_to_le32(0x44000000),
155 cpu_to_le32(0x00000000),
156 cpu_to_le32(0x40000000),
157 cpu_to_le32(0x00000000),
158 cpu_to_le32(0x44000000),
159 cpu_to_le32(0x00000000),
160 cpu_to_le32(0xc0004000),
161 cpu_to_le32(0xf0005000),
162 cpu_to_le32(0xc0004000),
163 cpu_to_le32(0xf0005000),
164 },
165 {
166 cpu_to_le32(0x40000000),
167 cpu_to_le32(0x00000000),
168 cpu_to_le32(0x44000000),
169 cpu_to_le32(0x00000000),
170 cpu_to_le32(0x40000000),
171 cpu_to_le32(0x00000000),
172 cpu_to_le32(0x44000000),
173 cpu_to_le32(0x00000000),
174 cpu_to_le32(0xc0004000),
175 cpu_to_le32(0xf0005000),
176 cpu_to_le32(0xc0004000),
177 cpu_to_le32(0xf0005000),
178 },
179};
180
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300181static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
182 {
183 /* Tight */
184 cpu_to_le32(0xaaaaaaaa),
185 cpu_to_le32(0xaaaaaaaa),
186 cpu_to_le32(0xaeaaaaaa),
187 cpu_to_le32(0xaaaaaaaa),
188 cpu_to_le32(0xcc00ff28),
189 cpu_to_le32(0x0000aaaa),
190 cpu_to_le32(0xcc00aaaa),
191 cpu_to_le32(0x0000aaaa),
192 cpu_to_le32(0xc0004000),
193 cpu_to_le32(0x00000000),
194 cpu_to_le32(0xf0005000),
195 cpu_to_le32(0xf0005000),
196 },
197 {
198 /* Loose */
199 cpu_to_le32(0xaaaaaaaa),
200 cpu_to_le32(0xaaaaaaaa),
201 cpu_to_le32(0xaaaaaaaa),
202 cpu_to_le32(0xaaaaaaaa),
203 cpu_to_le32(0xcc00ff28),
204 cpu_to_le32(0x0000aaaa),
205 cpu_to_le32(0xcc00aaaa),
206 cpu_to_le32(0x0000aaaa),
207 cpu_to_le32(0x00000000),
208 cpu_to_le32(0x00000000),
209 cpu_to_le32(0xf0005000),
210 cpu_to_le32(0xf0005000),
211 },
212 {
213 /* Tx Tx disabled */
214 cpu_to_le32(0xaaaaaaaa),
215 cpu_to_le32(0xaaaaaaaa),
216 cpu_to_le32(0xaaaaaaaa),
217 cpu_to_le32(0xaaaaaaaa),
218 cpu_to_le32(0xcc00ff28),
219 cpu_to_le32(0x0000aaaa),
220 cpu_to_le32(0xcc00aaaa),
221 cpu_to_le32(0x0000aaaa),
222 cpu_to_le32(0xC0004000),
223 cpu_to_le32(0xC0004000),
224 cpu_to_le32(0xF0005000),
225 cpu_to_le32(0xF0005000),
226 },
Emmanuel Grumbach931d4162013-01-17 09:42:25 +0200227};
228
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300229/* 20MHz / 40MHz below / 40Mhz above*/
230static const __le64 iwl_ci_mask[][3] = {
231 /* dummy entry for channel 0 */
232 {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
233 {
234 cpu_to_le64(0x0000001FFFULL),
235 cpu_to_le64(0x0ULL),
236 cpu_to_le64(0x00007FFFFFULL),
237 },
238 {
239 cpu_to_le64(0x000000FFFFULL),
240 cpu_to_le64(0x0ULL),
241 cpu_to_le64(0x0003FFFFFFULL),
242 },
243 {
244 cpu_to_le64(0x000003FFFCULL),
245 cpu_to_le64(0x0ULL),
246 cpu_to_le64(0x000FFFFFFCULL),
247 },
248 {
249 cpu_to_le64(0x00001FFFE0ULL),
250 cpu_to_le64(0x0ULL),
251 cpu_to_le64(0x007FFFFFE0ULL),
252 },
253 {
254 cpu_to_le64(0x00007FFF80ULL),
255 cpu_to_le64(0x00007FFFFFULL),
256 cpu_to_le64(0x01FFFFFF80ULL),
257 },
258 {
259 cpu_to_le64(0x0003FFFC00ULL),
260 cpu_to_le64(0x0003FFFFFFULL),
261 cpu_to_le64(0x0FFFFFFC00ULL),
262 },
263 {
264 cpu_to_le64(0x000FFFF000ULL),
265 cpu_to_le64(0x000FFFFFFCULL),
266 cpu_to_le64(0x3FFFFFF000ULL),
267 },
268 {
269 cpu_to_le64(0x007FFF8000ULL),
270 cpu_to_le64(0x007FFFFFE0ULL),
271 cpu_to_le64(0xFFFFFF8000ULL),
272 },
273 {
274 cpu_to_le64(0x01FFFE0000ULL),
275 cpu_to_le64(0x01FFFFFF80ULL),
276 cpu_to_le64(0xFFFFFE0000ULL),
277 },
278 {
279 cpu_to_le64(0x0FFFF00000ULL),
280 cpu_to_le64(0x0FFFFFFC00ULL),
281 cpu_to_le64(0x0ULL),
282 },
283 {
284 cpu_to_le64(0x3FFFC00000ULL),
285 cpu_to_le64(0x3FFFFFF000ULL),
286 cpu_to_le64(0x0)
287 },
288 {
289 cpu_to_le64(0xFFFE000000ULL),
290 cpu_to_le64(0xFFFFFF8000ULL),
291 cpu_to_le64(0x0)
292 },
293 {
294 cpu_to_le64(0xFFF8000000ULL),
295 cpu_to_le64(0xFFFFFE0000ULL),
296 cpu_to_le64(0x0)
297 },
298 {
Emmanuel Grumbachd2ccc902013-12-24 10:55:24 +0200299 cpu_to_le64(0xFFC0000000ULL),
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300300 cpu_to_le64(0x0ULL),
Emmanuel Grumbachd2ccc902013-12-24 10:55:24 +0200301 cpu_to_le64(0x0ULL)
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300302 },
Emmanuel Grumbach931d4162013-01-17 09:42:25 +0200303};
304
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300305static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = {
306 cpu_to_le32(0x22002200),
307 cpu_to_le32(0x33113311),
Emmanuel Grumbache715c3a2013-06-18 05:34:58 +0300308};
309
Emmanuel Grumbachb9fae2d2014-02-17 11:24:10 +0200310struct corunning_block_luts {
311 u8 range;
312 __le32 lut20[BT_COEX_CORUN_LUT_SIZE];
313};
314
315/*
316 * Ranges for the antenna coupling calibration / co-running block LUT:
317 * LUT0: [ 0, 12[
318 * LUT1: [12, 20[
319 * LUT2: [20, 21[
320 * LUT3: [21, 23[
321 * LUT4: [23, 27[
322 * LUT5: [27, 30[
323 * LUT6: [30, 32[
324 * LUT7: [32, 33[
325 * LUT8: [33, - [
326 */
327static const struct corunning_block_luts antenna_coupling_ranges[] = {
328 {
329 .range = 0,
330 .lut20 = {
331 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
332 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
333 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
334 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
335 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
336 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
337 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
338 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
339 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
340 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
341 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
342 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
343 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
344 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
345 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
346 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
347 },
348 },
349 {
350 .range = 12,
351 .lut20 = {
352 cpu_to_le32(0x00000001), cpu_to_le32(0x00000000),
353 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
354 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
355 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
356 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
357 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
358 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
359 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
360 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
361 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
362 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
363 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
364 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
365 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
366 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
367 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
368 },
369 },
370 {
371 .range = 20,
372 .lut20 = {
373 cpu_to_le32(0x00000002), cpu_to_le32(0x00000000),
374 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
375 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
376 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
377 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
378 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
379 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
380 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
381 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
382 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
383 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
384 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
385 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
386 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
387 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
388 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
389 },
390 },
391 {
392 .range = 21,
393 .lut20 = {
394 cpu_to_le32(0x00000003), cpu_to_le32(0x00000000),
395 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
396 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
397 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
398 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
399 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
400 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
401 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
402 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
403 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
404 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
405 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
406 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
407 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
408 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
409 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
410 },
411 },
412 {
413 .range = 23,
414 .lut20 = {
415 cpu_to_le32(0x00000004), cpu_to_le32(0x00000000),
416 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
417 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
418 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
419 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
420 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
421 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
422 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
423 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
424 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
425 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
426 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
427 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
428 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
429 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
430 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
431 },
432 },
433 {
434 .range = 27,
435 .lut20 = {
436 cpu_to_le32(0x00000005), cpu_to_le32(0x00000000),
437 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
438 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
439 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
440 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
441 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
442 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
443 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
444 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
445 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
446 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
447 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
448 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
449 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
450 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
451 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
452 },
453 },
454 {
455 .range = 30,
456 .lut20 = {
457 cpu_to_le32(0x00000006), cpu_to_le32(0x00000000),
458 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
459 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
460 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
461 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
462 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
463 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
464 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
465 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
466 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
467 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
468 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
469 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
470 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
471 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
472 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
473 },
474 },
475 {
476 .range = 32,
477 .lut20 = {
478 cpu_to_le32(0x00000007), cpu_to_le32(0x00000000),
479 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
480 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
481 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
482 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
483 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
484 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
485 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
486 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
487 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
488 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
489 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
490 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
491 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
492 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
493 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
494 },
495 },
496 {
497 .range = 33,
498 .lut20 = {
499 cpu_to_le32(0x00000008), cpu_to_le32(0x00000000),
500 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
501 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
502 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
503 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
504 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
505 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
506 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
507 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
508 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
509 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
510 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
511 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
512 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
513 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
514 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
515 },
516 },
517};
518
Emmanuel Grumbach4515f302013-06-30 07:51:54 +0300519static enum iwl_bt_coex_lut_type
520iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
521{
522 struct ieee80211_chanctx_conf *chanctx_conf;
523 enum iwl_bt_coex_lut_type ret;
524 u16 phy_ctx_id;
525
Emmanuel Grumbach9145d152013-07-18 08:45:41 +0300526 /*
527 * Checking that we hold mvm->mutex is a good idea, but the rate
528 * control can't acquire the mutex since it runs in Tx path.
529 * So this is racy in that case, but in the worst case, the AMPDU
530 * size limit will be wrong for a short time which is not a big
531 * issue.
532 */
Emmanuel Grumbach4515f302013-06-30 07:51:54 +0300533
534 rcu_read_lock();
535
536 chanctx_conf = rcu_dereference(vif->chanctx_conf);
537
538 if (!chanctx_conf ||
539 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
540 rcu_read_unlock();
541 return BT_COEX_LOOSE_LUT;
542 }
543
544 ret = BT_COEX_TX_DIS_LUT;
545
Emmanuel Grumbach39149912013-07-14 13:40:21 +0300546 if (mvm->cfg->bt_shared_single_ant) {
547 rcu_read_unlock();
548 return ret;
549 }
550
Emmanuel Grumbach4515f302013-06-30 07:51:54 +0300551 phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
552
553 if (mvm->last_bt_ci_cmd.primary_ch_phy_id == phy_ctx_id)
554 ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut);
555 else if (mvm->last_bt_ci_cmd.secondary_ch_phy_id == phy_ctx_id)
556 ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut);
557 /* else - default = TX TX disallowed */
558
559 rcu_read_unlock();
560
561 return ret;
562}
563
Emmanuel Grumbach931d4162013-01-17 09:42:25 +0200564int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
565{
Emmanuel Grumbach03e304e2013-06-26 15:54:34 +0300566 struct iwl_bt_coex_cmd *bt_cmd;
567 struct iwl_host_cmd cmd = {
568 .id = BT_CONFIG,
569 .len = { sizeof(*bt_cmd), },
570 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
571 .flags = CMD_SYNC,
Emmanuel Grumbach931d4162013-01-17 09:42:25 +0200572 };
573 int ret;
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300574 u32 flags;
575
576 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX))
577 return 0;
Emmanuel Grumbach931d4162013-01-17 09:42:25 +0200578
Emmanuel Grumbach03e304e2013-06-26 15:54:34 +0300579 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
580 if (!bt_cmd)
581 return -ENOMEM;
582 cmd.data[0] = bt_cmd;
583
584 bt_cmd->max_kill = 5;
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300585 bt_cmd->bt4_antenna_isolation_thr = BT_ANTENNA_COUPLING_THRESHOLD,
586 bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling,
587 bt_cmd->bt4_tx_tx_delta_freq_thr = 15,
588 bt_cmd->bt4_tx_rx_max_freq0 = 15,
Emmanuel Grumbach03e304e2013-06-26 15:54:34 +0300589
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300590 flags = iwlwifi_mod_params.bt_coex_active ?
Emmanuel Grumbach03e304e2013-06-26 15:54:34 +0300591 BT_COEX_NW : BT_COEX_DISABLE;
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300592 bt_cmd->flags = cpu_to_le32(flags);
Emmanuel Grumbach03e304e2013-06-26 15:54:34 +0300593
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300594 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE |
Emmanuel Grumbach03e304e2013-06-26 15:54:34 +0300595 BT_VALID_BT_PRIO_BOOST |
596 BT_VALID_MAX_KILL |
597 BT_VALID_3W_TMRS |
598 BT_VALID_KILL_ACK |
599 BT_VALID_KILL_CTS |
600 BT_VALID_REDUCED_TX_POWER |
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300601 BT_VALID_LUT |
602 BT_VALID_WIFI_RX_SW_PRIO_BOOST |
603 BT_VALID_WIFI_TX_SW_PRIO_BOOST |
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300604 BT_VALID_ANT_ISOLATION |
605 BT_VALID_ANT_ISOLATION_THRS |
606 BT_VALID_TXTX_DELTA_FREQ_THRS |
Emmanuel Grumbachb9c509c2013-11-28 14:58:20 +0200607 BT_VALID_TXRX_MAX_FREQ_0 |
608 BT_VALID_SYNC_TO_SCO);
Emmanuel Grumbach03e304e2013-06-26 15:54:34 +0300609
Emmanuel Grumbach741e7032014-01-27 12:12:50 +0200610 if (IWL_MVM_BT_COEX_SYNC2SCO)
611 bt_cmd->flags |= cpu_to_le32(BT_COEX_SYNC2SCO);
612
Emmanuel Grumbachb9fae2d2014-02-17 11:24:10 +0200613 if (IWL_MVM_BT_COEX_CORUNNING) {
614 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_CORUN_LUT_20 |
615 BT_VALID_CORUN_LUT_40);
616 bt_cmd->flags |= cpu_to_le32(BT_COEX_CORUNNING);
617 }
618
Emmanuel Grumbachd1d5e3c2013-09-11 13:33:28 +0300619 if (mvm->cfg->bt_shared_single_ant)
620 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant,
621 sizeof(iwl_single_shared_ant));
622 else
623 memcpy(&bt_cmd->decision_lut, iwl_combined_lookup,
624 sizeof(iwl_combined_lookup));
625
Emmanuel Grumbachb9fae2d2014-02-17 11:24:10 +0200626 /* Take first Co-running block LUT to get started */
627 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[0].lut20,
628 sizeof(bt_cmd->bt4_corun_lut20));
629 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[0].lut20,
630 sizeof(bt_cmd->bt4_corun_lut40));
631
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300632 memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost,
633 sizeof(iwl_bt_prio_boost));
634 memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut,
635 sizeof(iwl_bt_mprio_lut));
Emmanuel Grumbach03e304e2013-06-26 15:54:34 +0300636 bt_cmd->kill_ack_msk =
637 cpu_to_le32(iwl_bt_ack_kill_msk[BT_KILL_MSK_DEFAULT]);
638 bt_cmd->kill_cts_msk =
639 cpu_to_le32(iwl_bt_cts_kill_msk[BT_KILL_MSK_DEFAULT]);
640
641 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300642 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
Emmanuel Grumbach03e304e2013-06-26 15:54:34 +0300643
644 ret = iwl_mvm_send_cmd(mvm, &cmd);
645
646 kfree(bt_cmd);
647 return ret;
Emmanuel Grumbach931d4162013-01-17 09:42:25 +0200648}
Emmanuel Grumbachf421f9c2013-01-17 14:20:29 +0200649
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200650static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm,
651 bool reduced_tx_power)
652{
653 enum iwl_bt_kill_msk bt_kill_msk;
Emmanuel Grumbach03e304e2013-06-26 15:54:34 +0300654 struct iwl_bt_coex_cmd *bt_cmd;
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200655 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
Emmanuel Grumbach03e304e2013-06-26 15:54:34 +0300656 struct iwl_host_cmd cmd = {
657 .id = BT_CONFIG,
658 .data[0] = &bt_cmd,
659 .len = { sizeof(*bt_cmd), },
660 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
661 .flags = CMD_SYNC,
662 };
663 int ret = 0;
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200664
665 lockdep_assert_held(&mvm->mutex);
666
667 if (reduced_tx_power) {
668 /* Reduced Tx power has precedence on the type of the profile */
669 bt_kill_msk = BT_KILL_MSK_REDUCED_TXPOW;
670 } else {
671 /* Low latency BT profile is active: give higher prio to BT */
672 if (BT_MBOX_MSG(notif, 3, SCO_STATE) ||
673 BT_MBOX_MSG(notif, 3, A2DP_STATE) ||
674 BT_MBOX_MSG(notif, 3, SNIFF_STATE))
675 bt_kill_msk = BT_KILL_MSK_SCO_HID_A2DP;
676 else
677 bt_kill_msk = BT_KILL_MSK_DEFAULT;
678 }
679
680 IWL_DEBUG_COEX(mvm,
681 "Update kill_msk: %d - SCO %sactive A2DP %sactive SNIFF %sactive\n",
682 bt_kill_msk,
683 BT_MBOX_MSG(notif, 3, SCO_STATE) ? "" : "in",
684 BT_MBOX_MSG(notif, 3, A2DP_STATE) ? "" : "in",
685 BT_MBOX_MSG(notif, 3, SNIFF_STATE) ? "" : "in");
686
687 /* Don't send HCMD if there is no update */
688 if (bt_kill_msk == mvm->bt_kill_msk)
689 return 0;
690
691 mvm->bt_kill_msk = bt_kill_msk;
Emmanuel Grumbach03e304e2013-06-26 15:54:34 +0300692
693 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
694 if (!bt_cmd)
695 return -ENOMEM;
696 cmd.data[0] = bt_cmd;
Emmanuel Grumbach7352cac2013-10-14 18:52:23 +0300697 bt_cmd->flags = cpu_to_le32(BT_COEX_NW);
Emmanuel Grumbach03e304e2013-06-26 15:54:34 +0300698
699 bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ack_kill_msk[bt_kill_msk]);
700 bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_cts_kill_msk[bt_kill_msk]);
Emmanuel Grumbach7352cac2013-10-14 18:52:23 +0300701 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
702 BT_VALID_KILL_ACK |
703 BT_VALID_KILL_CTS);
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200704
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300705 IWL_DEBUG_COEX(mvm, "ACK Kill msk = 0x%08x, CTS Kill msk = 0x%08x\n",
706 iwl_bt_ack_kill_msk[bt_kill_msk],
707 iwl_bt_cts_kill_msk[bt_kill_msk]);
Emmanuel Grumbach03e304e2013-06-26 15:54:34 +0300708
709 ret = iwl_mvm_send_cmd(mvm, &cmd);
710
711 kfree(bt_cmd);
712 return ret;
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200713}
714
Emmanuel Grumbach32a65c32014-01-12 11:19:13 +0200715int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id, bool enable)
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200716{
Emmanuel Grumbach03e304e2013-06-26 15:54:34 +0300717 struct iwl_bt_coex_cmd *bt_cmd;
718 /* Send ASYNC since this can be sent from an atomic context */
719 struct iwl_host_cmd cmd = {
720 .id = BT_CONFIG,
721 .len = { sizeof(*bt_cmd), },
Emmanuel Grumbachb9fae2d2014-02-17 11:24:10 +0200722 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
Emmanuel Grumbach03e304e2013-06-26 15:54:34 +0300723 .flags = CMD_ASYNC,
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200724 };
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200725 struct iwl_mvm_sta *mvmsta;
Emmanuel Grumbach03e304e2013-06-26 15:54:34 +0300726 int ret;
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200727
Emmanuel Grumbachf327b042014-01-14 08:30:32 +0200728 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
729 if (!mvmsta)
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200730 return 0;
731
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200732 /* nothing to do */
Emmanuel Grumbach32a65c32014-01-12 11:19:13 +0200733 if (mvmsta->bt_reduced_txpower_dbg ||
734 mvmsta->bt_reduced_txpower == enable)
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200735 return 0;
736
Emmanuel Grumbach03e304e2013-06-26 15:54:34 +0300737 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC);
738 if (!bt_cmd)
739 return -ENOMEM;
740 cmd.data[0] = bt_cmd;
Emmanuel Grumbach7352cac2013-10-14 18:52:23 +0300741 bt_cmd->flags = cpu_to_le32(BT_COEX_NW);
Emmanuel Grumbach03e304e2013-06-26 15:54:34 +0300742
Emmanuel Grumbach7352cac2013-10-14 18:52:23 +0300743 bt_cmd->valid_bit_msk =
744 cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER);
Emmanuel Grumbach03e304e2013-06-26 15:54:34 +0300745 bt_cmd->bt_reduced_tx_power = sta_id;
746
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200747 if (enable)
Emmanuel Grumbach03e304e2013-06-26 15:54:34 +0300748 bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT;
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200749
750 IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
751 enable ? "en" : "dis", sta_id);
752
753 mvmsta->bt_reduced_txpower = enable;
754
Emmanuel Grumbach03e304e2013-06-26 15:54:34 +0300755 ret = iwl_mvm_send_cmd(mvm, &cmd);
756
757 kfree(bt_cmd);
758 return ret;
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200759}
760
761struct iwl_bt_iterator_data {
Emmanuel Grumbach7da052b2013-02-10 17:06:17 +0200762 struct iwl_bt_coex_profile_notif *notif;
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200763 struct iwl_mvm *mvm;
764 u32 num_bss_ifaces;
Emmanuel Grumbach9e511c32013-03-29 14:52:17 +0300765 bool reduced_tx_power;
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300766 struct ieee80211_chanctx_conf *primary;
767 struct ieee80211_chanctx_conf *secondary;
Emmanuel Grumbach0ee5bcd2014-01-15 16:57:54 +0200768 bool primary_ll;
Emmanuel Grumbach7da052b2013-02-10 17:06:17 +0200769};
770
Emmanuel Grumbachf6fc5772013-09-08 08:57:15 +0300771static inline
772void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
773 struct ieee80211_vif *vif,
774 bool enable, int rssi)
775{
776 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
777
778 mvmvif->bf_data.last_bt_coex_event = rssi;
779 mvmvif->bf_data.bt_coex_max_thold =
780 enable ? BT_ENABLE_REDUCED_TXPOWER_THRESHOLD : 0;
781 mvmvif->bf_data.bt_coex_min_thold =
782 enable ? BT_DISABLE_REDUCED_TXPOWER_THRESHOLD : 0;
783}
784
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300785/* must be called under rcu_read_lock */
Emmanuel Grumbach7da052b2013-02-10 17:06:17 +0200786static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
787 struct ieee80211_vif *vif)
788{
789 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200790 struct iwl_bt_iterator_data *data = _data;
791 struct iwl_mvm *mvm = data->mvm;
Emmanuel Grumbach7da052b2013-02-10 17:06:17 +0200792 struct ieee80211_chanctx_conf *chanctx_conf;
793 enum ieee80211_smps_mode smps_mode;
Emmanuel Grumbachf6415f62013-12-26 15:32:40 +0200794 u32 bt_activity_grading;
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200795 int ave_rssi;
Emmanuel Grumbach7da052b2013-02-10 17:06:17 +0200796
Eytan Lifshitz9ee718a2013-05-19 19:14:41 +0300797 lockdep_assert_held(&mvm->mutex);
Emmanuel Grumbach7da052b2013-02-10 17:06:17 +0200798
Emmanuel Grumbachf6415f62013-12-26 15:32:40 +0200799 switch (vif->type) {
800 case NL80211_IFTYPE_STATION:
801 /* default smps_mode for BSS / P2P client is AUTOMATIC */
802 smps_mode = IEEE80211_SMPS_AUTOMATIC;
803 data->num_bss_ifaces++;
Emmanuel Grumbach7da052b2013-02-10 17:06:17 +0200804
Emmanuel Grumbachf6415f62013-12-26 15:32:40 +0200805 /*
806 * Count unassoc BSSes, relax SMSP constraints
807 * and disable reduced Tx Power
808 */
809 if (!vif->bss_conf.assoc) {
810 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
811 smps_mode);
812 if (iwl_mvm_bt_coex_reduced_txp(mvm,
813 mvmvif->ap_sta_id,
814 false))
815 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
816 return;
817 }
818 break;
819 case NL80211_IFTYPE_AP:
820 /* default smps_mode for AP / GO is OFF */
821 smps_mode = IEEE80211_SMPS_OFF;
822 if (!mvmvif->ap_ibss_active) {
823 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
824 smps_mode);
825 return;
826 }
827
828 /* the Ack / Cts kill mask must be default if AP / GO */
829 data->reduced_tx_power = false;
830 break;
831 default:
832 return;
833 }
Emmanuel Grumbach7da052b2013-02-10 17:06:17 +0200834
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300835 chanctx_conf = rcu_dereference(vif->chanctx_conf);
836
837 /* If channel context is invalid or not on 2.4GHz .. */
838 if ((!chanctx_conf ||
839 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) {
Emmanuel Grumbachf6415f62013-12-26 15:32:40 +0200840 /* ... relax constraints and disable rssi events */
841 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
842 smps_mode);
843 if (vif->type == NL80211_IFTYPE_STATION)
844 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300845 return;
846 }
847
Emmanuel Grumbachf6415f62013-12-26 15:32:40 +0200848 bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
849 if (bt_activity_grading >= BT_HIGH_TRAFFIC)
850 smps_mode = IEEE80211_SMPS_STATIC;
851 else if (bt_activity_grading >= BT_LOW_TRAFFIC)
852 smps_mode = vif->type == NL80211_IFTYPE_AP ?
853 IEEE80211_SMPS_OFF :
854 IEEE80211_SMPS_DYNAMIC;
855 IWL_DEBUG_COEX(data->mvm,
856 "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n",
857 mvmvif->id, data->notif->bt_status, bt_activity_grading,
858 smps_mode);
859
860 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, smps_mode);
861
Emmanuel Grumbach0ee5bcd2014-01-15 16:57:54 +0200862 /* low latency is always primary */
863 if (iwl_mvm_vif_low_latency(mvmvif)) {
864 data->primary_ll = true;
865
866 data->secondary = data->primary;
867 data->primary = chanctx_conf;
868 }
869
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300870 if (vif->type == NL80211_IFTYPE_AP) {
Johannes Berg5023d962013-07-31 14:07:43 +0200871 if (!mvmvif->ap_ibss_active)
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300872 return;
873
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300874 if (chanctx_conf == data->primary)
875 return;
876
Emmanuel Grumbach0ee5bcd2014-01-15 16:57:54 +0200877 if (!data->primary_ll) {
878 /*
879 * downgrade the current primary no matter what its
880 * type is.
881 */
882 data->secondary = data->primary;
883 data->primary = chanctx_conf;
884 } else {
885 /* there is low latency vif - we will be secondary */
886 data->secondary = chanctx_conf;
887 }
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300888 return;
889 }
890
Emmanuel Grumbach0ee5bcd2014-01-15 16:57:54 +0200891 /*
892 * STA / P2P Client, try to be primary if first vif. If we are in low
893 * latency mode, we are already in primary and just don't do much
894 */
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300895 if (!data->primary || data->primary == chanctx_conf)
896 data->primary = chanctx_conf;
897 else if (!data->secondary)
898 /* if secondary is not NULL, it might be a GO */
899 data->secondary = chanctx_conf;
Emmanuel Grumbach9166b1e2013-03-20 15:28:27 +0200900
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200901 /* don't reduce the Tx power if in loose scheme */
Emmanuel Grumbach39149912013-07-14 13:40:21 +0300902 if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
903 mvm->cfg->bt_shared_single_ant) {
904 data->reduced_tx_power = false;
Emmanuel Grumbachf6fc5772013-09-08 08:57:15 +0300905 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200906 return;
Emmanuel Grumbach39149912013-07-14 13:40:21 +0300907 }
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200908
Emmanuel Grumbach4515f302013-06-30 07:51:54 +0300909 /* reduced Txpower only if BT is on, so ...*/
Emmanuel Grumbach0af88352013-10-15 12:37:38 +0300910 if (!data->notif->bt_status) {
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200911 /* ... cancel reduced Tx power ... */
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");
Emmanuel Grumbach9e511c32013-03-29 14:52:17 +0300914 data->reduced_tx_power = false;
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200915
916 /* ... and there is no need to get reports on RSSI any more. */
Emmanuel Grumbachf6fc5772013-09-08 08:57:15 +0300917 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200918 return;
919 }
920
Andrei Otcheretianski911222b2013-07-21 17:37:19 +0300921 /* try to get the avg rssi from fw */
922 ave_rssi = mvmvif->bf_data.ave_beacon_signal;
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200923
924 /* if the RSSI isn't valid, fake it is very low */
925 if (!ave_rssi)
926 ave_rssi = -100;
927 if (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) {
928 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true))
929 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
930
931 /*
932 * bt_kill_msk can be BT_KILL_MSK_REDUCED_TXPOW only if all the
933 * BSS / P2P clients have rssi above threshold.
934 * We set the bt_kill_msk to BT_KILL_MSK_REDUCED_TXPOW before
935 * the iteration, if one interface's rssi isn't good enough,
936 * bt_kill_msk will be set to default values.
937 */
938 } else if (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) {
939 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
940 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
941
942 /*
943 * One interface hasn't rssi above threshold, bt_kill_msk must
944 * be set to default values.
945 */
Emmanuel Grumbach9e511c32013-03-29 14:52:17 +0300946 data->reduced_tx_power = false;
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200947 }
948
949 /* Begin to monitor the RSSI: it may influence the reduced Tx power */
Emmanuel Grumbachf6fc5772013-09-08 08:57:15 +0300950 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
Emmanuel Grumbach7da052b2013-02-10 17:06:17 +0200951}
952
Emmanuel Grumbachd37cac92013-03-29 14:56:19 +0300953static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
Emmanuel Grumbachf421f9c2013-01-17 14:20:29 +0200954{
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +0200955 struct iwl_bt_iterator_data data = {
Emmanuel Grumbach7da052b2013-02-10 17:06:17 +0200956 .mvm = mvm,
Emmanuel Grumbachd37cac92013-03-29 14:56:19 +0300957 .notif = &mvm->last_bt_notif,
Emmanuel Grumbach9e511c32013-03-29 14:52:17 +0300958 .reduced_tx_power = true,
Emmanuel Grumbach7da052b2013-02-10 17:06:17 +0200959 };
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300960 struct iwl_bt_coex_ci_cmd cmd = {};
961 u8 ci_bw_idx;
Emmanuel Grumbachf421f9c2013-01-17 14:20:29 +0200962
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300963 rcu_read_lock();
Emmanuel Grumbach7da052b2013-02-10 17:06:17 +0200964 ieee80211_iterate_active_interfaces_atomic(
965 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
966 iwl_mvm_bt_notif_iterator, &data);
967
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +0300968 if (data.primary) {
969 struct ieee80211_chanctx_conf *chan = data.primary;
970 if (WARN_ON(!chan->def.chan)) {
971 rcu_read_unlock();
972 return;
973 }
974
975 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
976 ci_bw_idx = 0;
977 cmd.co_run_bw_primary = 0;
978 } else {
979 cmd.co_run_bw_primary = 1;
980 if (chan->def.center_freq1 >
981 chan->def.chan->center_freq)
982 ci_bw_idx = 2;
983 else
984 ci_bw_idx = 1;
985 }
986
987 cmd.bt_primary_ci =
988 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
989 cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv);
990 }
991
992 if (data.secondary) {
993 struct ieee80211_chanctx_conf *chan = data.secondary;
994 if (WARN_ON(!data.secondary->def.chan)) {
995 rcu_read_unlock();
996 return;
997 }
998
999 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
1000 ci_bw_idx = 0;
1001 cmd.co_run_bw_secondary = 0;
1002 } else {
1003 cmd.co_run_bw_secondary = 1;
1004 if (chan->def.center_freq1 >
1005 chan->def.chan->center_freq)
1006 ci_bw_idx = 2;
1007 else
1008 ci_bw_idx = 1;
1009 }
1010
1011 cmd.bt_secondary_ci =
1012 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
Emmanuel Grumbachc92f06a2013-10-29 22:50:49 +02001013 cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv);
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +03001014 }
1015
1016 rcu_read_unlock();
1017
1018 /* Don't spam the fw with the same command over and over */
1019 if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) {
1020 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, CMD_SYNC,
1021 sizeof(cmd), &cmd))
1022 IWL_ERR(mvm, "Failed to send BT_CI cmd");
1023 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd));
1024 }
1025
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +02001026 /*
1027 * If there are no BSS / P2P client interfaces, reduced Tx Power is
1028 * irrelevant since it is based on the RSSI coming from the beacon.
1029 * Use BT_KILL_MSK_DEFAULT in that case.
1030 */
Emmanuel Grumbach9e511c32013-03-29 14:52:17 +03001031 data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces;
Emmanuel Grumbachf421f9c2013-01-17 14:20:29 +02001032
Emmanuel Grumbach9e511c32013-03-29 14:52:17 +03001033 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power))
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +02001034 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
Emmanuel Grumbach9166b1e2013-03-20 15:28:27 +02001035}
1036
1037/* upon association, the fw will send in BT Coex notification */
1038int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
1039 struct iwl_rx_cmd_buffer *rxb,
1040 struct iwl_device_cmd *dev_cmd)
1041{
1042 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1043 struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data;
1044
1045
1046 IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +03001047 IWL_DEBUG_COEX(mvm, "\tBT status: %s\n",
1048 notif->bt_status ? "ON" : "OFF");
Emmanuel Grumbach9166b1e2013-03-20 15:28:27 +02001049 IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn);
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +03001050 IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
1051 IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
1052 le32_to_cpu(notif->primary_ch_lut));
1053 IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
1054 le32_to_cpu(notif->secondary_ch_lut));
1055 IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
1056 le32_to_cpu(notif->bt_activity_grading));
Emmanuel Grumbach9166b1e2013-03-20 15:28:27 +02001057 IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n",
1058 notif->bt_agg_traffic_load);
Emmanuel Grumbach9166b1e2013-03-20 15:28:27 +02001059
Emmanuel Grumbachd37cac92013-03-29 14:56:19 +03001060 /* remember this notification for future use: rssi fluctuations */
1061 memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif));
1062
1063 iwl_mvm_bt_coex_notif_handle(mvm);
Emmanuel Grumbachf421f9c2013-01-17 14:20:29 +02001064
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +02001065 /*
1066 * This is an async handler for a notification, returning anything other
1067 * than 0 doesn't make sense even if HCMD failed.
1068 */
Emmanuel Grumbachf421f9c2013-01-17 14:20:29 +02001069 return 0;
1070}
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +02001071
1072static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
1073 struct ieee80211_vif *vif)
1074{
1075 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1076 struct iwl_bt_iterator_data *data = _data;
1077 struct iwl_mvm *mvm = data->mvm;
1078
1079 struct ieee80211_sta *sta;
1080 struct iwl_mvm_sta *mvmsta;
1081
Emmanuel Grumbachf6fc5772013-09-08 08:57:15 +03001082 struct ieee80211_chanctx_conf *chanctx_conf;
1083
1084 rcu_read_lock();
1085 chanctx_conf = rcu_dereference(vif->chanctx_conf);
1086 /* If channel context is invalid or not on 2.4GHz - don't count it */
1087 if (!chanctx_conf ||
1088 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
1089 rcu_read_unlock();
1090 return;
1091 }
1092 rcu_read_unlock();
1093
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +02001094 if (vif->type != NL80211_IFTYPE_STATION ||
1095 mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1096 return;
1097
1098 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1099 lockdep_is_held(&mvm->mutex));
Emmanuel Grumbach56c07a92013-10-21 11:03:53 +03001100
1101 /* This can happen if the station has been removed right now */
1102 if (IS_ERR_OR_NULL(sta))
1103 return;
1104
Johannes Berg5b577a92013-11-14 18:20:04 +01001105 mvmsta = iwl_mvm_sta_from_mac80211(sta);
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +02001106
Emmanuel Grumbach8e0366f2013-06-25 21:57:08 +03001107 data->num_bss_ifaces++;
1108
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +02001109 /*
1110 * This interface doesn't support reduced Tx power (because of low
1111 * RSSI probably), then set bt_kill_msk to default values.
1112 */
1113 if (!mvmsta->bt_reduced_txpower)
Emmanuel Grumbach9e511c32013-03-29 14:52:17 +03001114 data->reduced_tx_power = false;
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +02001115 /* else - possibly leave it to BT_KILL_MSK_REDUCED_TXPOW */
1116}
1117
1118void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1119 enum ieee80211_rssi_event rssi_event)
1120{
1121 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +02001122 struct iwl_bt_iterator_data data = {
1123 .mvm = mvm,
Emmanuel Grumbach9e511c32013-03-29 14:52:17 +03001124 .reduced_tx_power = true,
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +02001125 };
1126 int ret;
1127
Johannes Berg3dd1cd22013-10-02 12:05:24 +02001128 lockdep_assert_held(&mvm->mutex);
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +02001129
1130 /* Rssi update while not associated ?! */
1131 if (WARN_ON_ONCE(mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT))
Johannes Berg3dd1cd22013-10-02 12:05:24 +02001132 return;
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +02001133
Emmanuel Grumbach4515f302013-06-30 07:51:54 +03001134 /* No BT - reports should be disabled */
Emmanuel Grumbach0af88352013-10-15 12:37:38 +03001135 if (!mvm->last_bt_notif.bt_status)
Johannes Berg3dd1cd22013-10-02 12:05:24 +02001136 return;
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +02001137
1138 IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
1139 rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
1140
1141 /*
1142 * Check if rssi is good enough for reduced Tx power, but not in loose
1143 * scheme.
1144 */
Emmanuel Grumbach39149912013-07-14 13:40:21 +03001145 if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
Emmanuel Grumbach4515f302013-06-30 07:51:54 +03001146 iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +02001147 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
1148 false);
1149 else
1150 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true);
1151
1152 if (ret)
1153 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
1154
1155 ieee80211_iterate_active_interfaces_atomic(
1156 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1157 iwl_mvm_bt_rssi_iterator, &data);
1158
1159 /*
1160 * If there are no BSS / P2P client interfaces, reduced Tx Power is
1161 * irrelevant since it is based on the RSSI coming from the beacon.
1162 * Use BT_KILL_MSK_DEFAULT in that case.
1163 */
Emmanuel Grumbach9e511c32013-03-29 14:52:17 +03001164 data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces;
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +02001165
Emmanuel Grumbach9e511c32013-03-29 14:52:17 +03001166 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power))
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +02001167 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
Emmanuel Grumbach2b76ef12013-01-24 10:35:13 +02001168}
Emmanuel Grumbach9166b1e2013-03-20 15:28:27 +02001169
Emmanuel Grumbach9145d152013-07-18 08:45:41 +03001170#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000)
1171#define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
1172
Emmanuel Grumbach5b7ff612014-03-11 19:27:45 +02001173u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm,
1174 struct ieee80211_sta *sta)
Emmanuel Grumbach9145d152013-07-18 08:45:41 +03001175{
Johannes Berg5b577a92013-11-14 18:20:04 +01001176 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
Emmanuel Grumbach9145d152013-07-18 08:45:41 +03001177 enum iwl_bt_coex_lut_type lut_type;
1178
1179 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
Emmanuel Grumbachc2119352013-11-13 22:00:30 +02001180 BT_HIGH_TRAFFIC)
Emmanuel Grumbach9145d152013-07-18 08:45:41 +03001181 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1182
1183 lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1184
1185 if (lut_type == BT_COEX_LOOSE_LUT)
1186 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1187
1188 /* tight coex, high bt traffic, reduce AGG time limit */
1189 return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
1190}
1191
Emmanuel Grumbachffa6c702013-10-06 11:41:20 +03001192bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
1193 struct ieee80211_sta *sta)
1194{
Johannes Berg5b577a92013-11-14 18:20:04 +01001195 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
Emmanuel Grumbachffa6c702013-10-06 11:41:20 +03001196
1197 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
1198 BT_HIGH_TRAFFIC)
1199 return true;
1200
1201 /*
1202 * In Tight, BT can't Rx while we Tx, so use both antennas since BT is
1203 * already killed.
1204 * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while we
1205 * Tx.
1206 */
1207 return iwl_get_coex_type(mvm, mvmsta->vif) == BT_COEX_TIGHT_LUT;
1208}
1209
Emmanuel Grumbachee7bea52014-03-06 10:30:49 +02001210u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
Emmanuel Grumbachb797e3f2014-03-06 14:49:36 +02001211 struct ieee80211_tx_info *info, u8 ac)
Emmanuel Grumbachee7bea52014-03-06 10:30:49 +02001212{
1213 __le16 fc = hdr->frame_control;
1214
Emmanuel Grumbachb797e3f2014-03-06 14:49:36 +02001215 if (info->band != IEEE80211_BAND_2GHZ)
1216 return 0;
1217
Emmanuel Grumbachee7bea52014-03-06 10:30:49 +02001218 /* High prio packet (wrt. BT coex) if it is EAPOL, MCAST or MGMT */
Emmanuel Grumbachb797e3f2014-03-06 14:49:36 +02001219 if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO ||
Emmanuel Grumbachee7bea52014-03-06 10:30:49 +02001220 is_multicast_ether_addr(hdr->addr1) ||
Emmanuel Grumbachb797e3f2014-03-06 14:49:36 +02001221 ieee80211_is_ctl(fc) || ieee80211_is_mgmt(fc) ||
1222 ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc))
1223 return 3;
1224
1225 switch (ac) {
1226 case IEEE80211_AC_BE:
1227 return 1;
1228 case IEEE80211_AC_VO:
1229 return 3;
1230 case IEEE80211_AC_VI:
Emmanuel Grumbachee7bea52014-03-06 10:30:49 +02001231 return 2;
Emmanuel Grumbachb797e3f2014-03-06 14:49:36 +02001232 default:
1233 break;
1234 }
Emmanuel Grumbachee7bea52014-03-06 10:30:49 +02001235
1236 return 0;
1237}
1238
Emmanuel Grumbach8e484f02013-10-02 15:02:25 +03001239void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm)
Emmanuel Grumbach9166b1e2013-03-20 15:28:27 +02001240{
Emmanuel Grumbachdac94da2013-06-18 07:35:27 +03001241 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX))
1242 return;
1243
Emmanuel Grumbachd37cac92013-03-29 14:56:19 +03001244 iwl_mvm_bt_coex_notif_handle(mvm);
Emmanuel Grumbach9166b1e2013-03-20 15:28:27 +02001245}
Emmanuel Grumbachb9fae2d2014-02-17 11:24:10 +02001246
1247int iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm,
1248 struct iwl_rx_cmd_buffer *rxb,
1249 struct iwl_device_cmd *dev_cmd)
1250{
1251 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1252 u32 ant_isolation = le32_to_cpup((void *)pkt->data);
1253 u8 __maybe_unused lower_bound, upper_bound;
1254 u8 lut;
1255
1256 struct iwl_bt_coex_cmd *bt_cmd;
1257 struct iwl_host_cmd cmd = {
1258 .id = BT_CONFIG,
1259 .len = { sizeof(*bt_cmd), },
1260 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
1261 .flags = CMD_SYNC,
1262 };
1263
1264 if (!IWL_MVM_BT_COEX_CORUNNING)
1265 return 0;
1266
1267 lockdep_assert_held(&mvm->mutex);
1268
1269 if (ant_isolation == mvm->last_ant_isol)
1270 return 0;
1271
1272 for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++)
1273 if (ant_isolation < antenna_coupling_ranges[lut + 1].range)
1274 break;
1275
1276 lower_bound = antenna_coupling_ranges[lut].range;
1277
1278 if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1)
1279 upper_bound = antenna_coupling_ranges[lut + 1].range;
1280 else
1281 upper_bound = antenna_coupling_ranges[lut].range;
1282
1283 IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n",
1284 ant_isolation, lower_bound, upper_bound, lut);
1285
1286 mvm->last_ant_isol = ant_isolation;
1287
1288 if (mvm->last_corun_lut == lut)
1289 return 0;
1290
1291 mvm->last_corun_lut = lut;
1292
1293 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
1294 if (!bt_cmd)
1295 return 0;
1296 cmd.data[0] = bt_cmd;
1297
1298 bt_cmd->flags = cpu_to_le32(BT_COEX_NW);
1299 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
1300 BT_VALID_CORUN_LUT_20 |
1301 BT_VALID_CORUN_LUT_40);
1302
1303 /* For the moment, use the same LUT for 20GHz and 40GHz */
1304 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[lut].lut20,
1305 sizeof(bt_cmd->bt4_corun_lut20));
1306
1307 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[lut].lut20,
1308 sizeof(bt_cmd->bt4_corun_lut40));
1309
1310 return 0;
1311}