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931d4160 EG |
1 | /****************************************************************************** |
2 | * | |
3 | * This file is provided under a dual BSD/GPLv2 license. When using or | |
4 | * redistributing this file, you may do so under either license. | |
5 | * | |
6 | * GPL LICENSE SUMMARY | |
7 | * | |
8 | * Copyright(c) 2013 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 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 | ||
2b76ef13 EG |
64 | #include <net/mac80211.h> |
65 | ||
931d4160 EG |
66 | #include "fw-api-bt-coex.h" |
67 | #include "iwl-modparams.h" | |
68 | #include "mvm.h" | |
f421f9c3 | 69 | #include "iwl-debug.h" |
931d4160 EG |
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 | ||
75 | static 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 | ||
2b76ef13 EG |
101 | #define BT_ENABLE_REDUCED_TXPOWER_THRESHOLD (-62) |
102 | #define BT_DISABLE_REDUCED_TXPOWER_THRESHOLD (-65) | |
dac94da8 | 103 | #define BT_ANTENNA_COUPLING_THRESHOLD (30) |
2b76ef13 | 104 | |
931d4160 EG |
105 | int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm) |
106 | { | |
dac94da8 EG |
107 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX)) |
108 | return 0; | |
109 | ||
931d4160 EG |
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 | ||
2de13cae | 115 | const u32 iwl_bt_ack_kill_msk[BT_KILL_MSK_MAX] = { |
5b7e662b EG |
116 | [BT_KILL_MSK_DEFAULT] = 0xffff0000, |
117 | [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff, | |
118 | [BT_KILL_MSK_REDUCED_TXPOW] = 0, | |
931d4160 EG |
119 | }; |
120 | ||
2de13cae | 121 | const u32 iwl_bt_cts_kill_msk[BT_KILL_MSK_MAX] = { |
5b7e662b EG |
122 | [BT_KILL_MSK_DEFAULT] = 0xffff0000, |
123 | [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff, | |
124 | [BT_KILL_MSK_REDUCED_TXPOW] = 0, | |
931d4160 EG |
125 | }; |
126 | ||
dac94da8 EG |
127 | static 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), | |
931d4160 EG |
132 | }; |
133 | ||
d1d5e3cd EG |
134 | static 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 | ||
dac94da8 EG |
179 | static 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 | }, | |
931d4160 EG |
225 | }; |
226 | ||
dac94da8 EG |
227 | /* 20MHz / 40MHz below / 40Mhz above*/ |
228 | static 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(0xFE00000000ULL), | |
298 | cpu_to_le64(0x0ULL), | |
299 | cpu_to_le64(0x0) | |
300 | }, | |
931d4160 EG |
301 | }; |
302 | ||
dac94da8 EG |
303 | static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = { |
304 | cpu_to_le32(0x22002200), | |
305 | cpu_to_le32(0x33113311), | |
e715c3a9 EG |
306 | }; |
307 | ||
4515f30f EG |
308 | static enum iwl_bt_coex_lut_type |
309 | iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif) | |
310 | { | |
311 | struct ieee80211_chanctx_conf *chanctx_conf; | |
312 | enum iwl_bt_coex_lut_type ret; | |
313 | u16 phy_ctx_id; | |
314 | ||
9145d151 EG |
315 | /* |
316 | * Checking that we hold mvm->mutex is a good idea, but the rate | |
317 | * control can't acquire the mutex since it runs in Tx path. | |
318 | * So this is racy in that case, but in the worst case, the AMPDU | |
319 | * size limit will be wrong for a short time which is not a big | |
320 | * issue. | |
321 | */ | |
4515f30f EG |
322 | |
323 | rcu_read_lock(); | |
324 | ||
325 | chanctx_conf = rcu_dereference(vif->chanctx_conf); | |
326 | ||
327 | if (!chanctx_conf || | |
328 | chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) { | |
329 | rcu_read_unlock(); | |
330 | return BT_COEX_LOOSE_LUT; | |
331 | } | |
332 | ||
333 | ret = BT_COEX_TX_DIS_LUT; | |
334 | ||
39149911 EG |
335 | if (mvm->cfg->bt_shared_single_ant) { |
336 | rcu_read_unlock(); | |
337 | return ret; | |
338 | } | |
339 | ||
4515f30f EG |
340 | phy_ctx_id = *((u16 *)chanctx_conf->drv_priv); |
341 | ||
342 | if (mvm->last_bt_ci_cmd.primary_ch_phy_id == phy_ctx_id) | |
343 | ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut); | |
344 | else if (mvm->last_bt_ci_cmd.secondary_ch_phy_id == phy_ctx_id) | |
345 | ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut); | |
346 | /* else - default = TX TX disallowed */ | |
347 | ||
348 | rcu_read_unlock(); | |
349 | ||
350 | return ret; | |
351 | } | |
352 | ||
931d4160 EG |
353 | int iwl_send_bt_init_conf(struct iwl_mvm *mvm) |
354 | { | |
03e304e4 EG |
355 | struct iwl_bt_coex_cmd *bt_cmd; |
356 | struct iwl_host_cmd cmd = { | |
357 | .id = BT_CONFIG, | |
358 | .len = { sizeof(*bt_cmd), }, | |
359 | .dataflags = { IWL_HCMD_DFL_NOCOPY, }, | |
360 | .flags = CMD_SYNC, | |
931d4160 EG |
361 | }; |
362 | int ret; | |
dac94da8 EG |
363 | u32 flags; |
364 | ||
365 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX)) | |
366 | return 0; | |
931d4160 | 367 | |
03e304e4 EG |
368 | bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); |
369 | if (!bt_cmd) | |
370 | return -ENOMEM; | |
371 | cmd.data[0] = bt_cmd; | |
372 | ||
373 | bt_cmd->max_kill = 5; | |
dac94da8 EG |
374 | bt_cmd->bt4_antenna_isolation_thr = BT_ANTENNA_COUPLING_THRESHOLD, |
375 | bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling, | |
376 | bt_cmd->bt4_tx_tx_delta_freq_thr = 15, | |
377 | bt_cmd->bt4_tx_rx_max_freq0 = 15, | |
03e304e4 | 378 | |
dac94da8 | 379 | flags = iwlwifi_mod_params.bt_coex_active ? |
931d4160 | 380 | BT_COEX_NW : BT_COEX_DISABLE; |
dac94da8 EG |
381 | flags |= BT_CH_PRIMARY_EN | BT_CH_SECONDARY_EN | BT_SYNC_2_BT_DISABLE; |
382 | bt_cmd->flags = cpu_to_le32(flags); | |
931d4160 | 383 | |
dac94da8 | 384 | bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE | |
03e304e4 EG |
385 | BT_VALID_BT_PRIO_BOOST | |
386 | BT_VALID_MAX_KILL | | |
387 | BT_VALID_3W_TMRS | | |
388 | BT_VALID_KILL_ACK | | |
389 | BT_VALID_KILL_CTS | | |
390 | BT_VALID_REDUCED_TX_POWER | | |
dac94da8 EG |
391 | BT_VALID_LUT | |
392 | BT_VALID_WIFI_RX_SW_PRIO_BOOST | | |
393 | BT_VALID_WIFI_TX_SW_PRIO_BOOST | | |
394 | BT_VALID_MULTI_PRIO_LUT | | |
395 | BT_VALID_CORUN_LUT_20 | | |
396 | BT_VALID_CORUN_LUT_40 | | |
397 | BT_VALID_ANT_ISOLATION | | |
398 | BT_VALID_ANT_ISOLATION_THRS | | |
399 | BT_VALID_TXTX_DELTA_FREQ_THRS | | |
400 | BT_VALID_TXRX_MAX_FREQ_0); | |
401 | ||
d1d5e3cd EG |
402 | if (mvm->cfg->bt_shared_single_ant) |
403 | memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant, | |
404 | sizeof(iwl_single_shared_ant)); | |
405 | else | |
406 | memcpy(&bt_cmd->decision_lut, iwl_combined_lookup, | |
407 | sizeof(iwl_combined_lookup)); | |
408 | ||
dac94da8 EG |
409 | memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost, |
410 | sizeof(iwl_bt_prio_boost)); | |
411 | memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut, | |
412 | sizeof(iwl_bt_mprio_lut)); | |
03e304e4 | 413 | bt_cmd->kill_ack_msk = |
931d4160 | 414 | cpu_to_le32(iwl_bt_ack_kill_msk[BT_KILL_MSK_DEFAULT]); |
03e304e4 | 415 | bt_cmd->kill_cts_msk = |
931d4160 EG |
416 | cpu_to_le32(iwl_bt_cts_kill_msk[BT_KILL_MSK_DEFAULT]); |
417 | ||
2b76ef13 | 418 | memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); |
dac94da8 | 419 | memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); |
2b76ef13 | 420 | |
03e304e4 | 421 | ret = iwl_mvm_send_cmd(mvm, &cmd); |
931d4160 | 422 | |
03e304e4 EG |
423 | kfree(bt_cmd); |
424 | return ret; | |
931d4160 | 425 | } |
f421f9c3 | 426 | |
2b76ef13 EG |
427 | static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm, |
428 | bool reduced_tx_power) | |
429 | { | |
430 | enum iwl_bt_kill_msk bt_kill_msk; | |
03e304e4 | 431 | struct iwl_bt_coex_cmd *bt_cmd; |
2b76ef13 | 432 | struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif; |
03e304e4 EG |
433 | struct iwl_host_cmd cmd = { |
434 | .id = BT_CONFIG, | |
435 | .data[0] = &bt_cmd, | |
436 | .len = { sizeof(*bt_cmd), }, | |
437 | .dataflags = { IWL_HCMD_DFL_NOCOPY, }, | |
438 | .flags = CMD_SYNC, | |
439 | }; | |
440 | int ret = 0; | |
2b76ef13 EG |
441 | |
442 | lockdep_assert_held(&mvm->mutex); | |
443 | ||
444 | if (reduced_tx_power) { | |
445 | /* Reduced Tx power has precedence on the type of the profile */ | |
446 | bt_kill_msk = BT_KILL_MSK_REDUCED_TXPOW; | |
447 | } else { | |
448 | /* Low latency BT profile is active: give higher prio to BT */ | |
449 | if (BT_MBOX_MSG(notif, 3, SCO_STATE) || | |
450 | BT_MBOX_MSG(notif, 3, A2DP_STATE) || | |
451 | BT_MBOX_MSG(notif, 3, SNIFF_STATE)) | |
452 | bt_kill_msk = BT_KILL_MSK_SCO_HID_A2DP; | |
453 | else | |
454 | bt_kill_msk = BT_KILL_MSK_DEFAULT; | |
455 | } | |
456 | ||
457 | IWL_DEBUG_COEX(mvm, | |
458 | "Update kill_msk: %d - SCO %sactive A2DP %sactive SNIFF %sactive\n", | |
459 | bt_kill_msk, | |
460 | BT_MBOX_MSG(notif, 3, SCO_STATE) ? "" : "in", | |
461 | BT_MBOX_MSG(notif, 3, A2DP_STATE) ? "" : "in", | |
462 | BT_MBOX_MSG(notif, 3, SNIFF_STATE) ? "" : "in"); | |
463 | ||
464 | /* Don't send HCMD if there is no update */ | |
465 | if (bt_kill_msk == mvm->bt_kill_msk) | |
466 | return 0; | |
467 | ||
468 | mvm->bt_kill_msk = bt_kill_msk; | |
03e304e4 EG |
469 | |
470 | bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); | |
471 | if (!bt_cmd) | |
472 | return -ENOMEM; | |
473 | cmd.data[0] = bt_cmd; | |
474 | ||
475 | bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ack_kill_msk[bt_kill_msk]); | |
476 | bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_cts_kill_msk[bt_kill_msk]); | |
477 | bt_cmd->valid_bit_msk = | |
dac94da8 | 478 | cpu_to_le32(BT_VALID_KILL_ACK | BT_VALID_KILL_CTS); |
2b76ef13 | 479 | |
dac94da8 EG |
480 | IWL_DEBUG_COEX(mvm, "ACK Kill msk = 0x%08x, CTS Kill msk = 0x%08x\n", |
481 | iwl_bt_ack_kill_msk[bt_kill_msk], | |
482 | iwl_bt_cts_kill_msk[bt_kill_msk]); | |
03e304e4 EG |
483 | |
484 | ret = iwl_mvm_send_cmd(mvm, &cmd); | |
485 | ||
486 | kfree(bt_cmd); | |
487 | return ret; | |
2b76ef13 EG |
488 | } |
489 | ||
490 | static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id, | |
491 | bool enable) | |
492 | { | |
03e304e4 EG |
493 | struct iwl_bt_coex_cmd *bt_cmd; |
494 | /* Send ASYNC since this can be sent from an atomic context */ | |
495 | struct iwl_host_cmd cmd = { | |
496 | .id = BT_CONFIG, | |
497 | .len = { sizeof(*bt_cmd), }, | |
498 | .dataflags = { IWL_HCMD_DFL_DUP, }, | |
499 | .flags = CMD_ASYNC, | |
2b76ef13 | 500 | }; |
03e304e4 | 501 | |
2b76ef13 EG |
502 | struct ieee80211_sta *sta; |
503 | struct iwl_mvm_sta *mvmsta; | |
03e304e4 | 504 | int ret; |
2b76ef13 EG |
505 | |
506 | /* This can happen if the station has been removed right now */ | |
507 | if (sta_id == IWL_MVM_STATION_COUNT) | |
508 | return 0; | |
509 | ||
510 | sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], | |
511 | lockdep_is_held(&mvm->mutex)); | |
512 | mvmsta = (void *)sta->drv_priv; | |
513 | ||
514 | /* nothing to do */ | |
515 | if (mvmsta->bt_reduced_txpower == enable) | |
516 | return 0; | |
517 | ||
03e304e4 EG |
518 | bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC); |
519 | if (!bt_cmd) | |
520 | return -ENOMEM; | |
521 | cmd.data[0] = bt_cmd; | |
522 | ||
dac94da8 | 523 | bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_REDUCED_TX_POWER), |
03e304e4 EG |
524 | bt_cmd->bt_reduced_tx_power = sta_id; |
525 | ||
2b76ef13 | 526 | if (enable) |
03e304e4 | 527 | bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT; |
2b76ef13 EG |
528 | |
529 | IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n", | |
530 | enable ? "en" : "dis", sta_id); | |
531 | ||
532 | mvmsta->bt_reduced_txpower = enable; | |
533 | ||
03e304e4 EG |
534 | ret = iwl_mvm_send_cmd(mvm, &cmd); |
535 | ||
536 | kfree(bt_cmd); | |
537 | return ret; | |
2b76ef13 EG |
538 | } |
539 | ||
540 | struct iwl_bt_iterator_data { | |
7da052b8 | 541 | struct iwl_bt_coex_profile_notif *notif; |
2b76ef13 EG |
542 | struct iwl_mvm *mvm; |
543 | u32 num_bss_ifaces; | |
9e511c31 | 544 | bool reduced_tx_power; |
dac94da8 EG |
545 | struct ieee80211_chanctx_conf *primary; |
546 | struct ieee80211_chanctx_conf *secondary; | |
7da052b8 EG |
547 | }; |
548 | ||
f6fc5775 EG |
549 | static inline |
550 | void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm, | |
551 | struct ieee80211_vif *vif, | |
552 | bool enable, int rssi) | |
553 | { | |
554 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
555 | ||
556 | mvmvif->bf_data.last_bt_coex_event = rssi; | |
557 | mvmvif->bf_data.bt_coex_max_thold = | |
558 | enable ? BT_ENABLE_REDUCED_TXPOWER_THRESHOLD : 0; | |
559 | mvmvif->bf_data.bt_coex_min_thold = | |
560 | enable ? BT_DISABLE_REDUCED_TXPOWER_THRESHOLD : 0; | |
561 | } | |
562 | ||
dac94da8 | 563 | /* must be called under rcu_read_lock */ |
7da052b8 EG |
564 | static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac, |
565 | struct ieee80211_vif *vif) | |
566 | { | |
567 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2b76ef13 EG |
568 | struct iwl_bt_iterator_data *data = _data; |
569 | struct iwl_mvm *mvm = data->mvm; | |
7da052b8 EG |
570 | struct ieee80211_chanctx_conf *chanctx_conf; |
571 | enum ieee80211_smps_mode smps_mode; | |
2b76ef13 | 572 | int ave_rssi; |
7da052b8 | 573 | |
9ee718aa | 574 | lockdep_assert_held(&mvm->mutex); |
7da052b8 | 575 | |
dac94da8 EG |
576 | if (vif->type != NL80211_IFTYPE_STATION && |
577 | vif->type != NL80211_IFTYPE_AP) | |
578 | return; | |
7da052b8 | 579 | |
7da052b8 EG |
580 | smps_mode = IEEE80211_SMPS_AUTOMATIC; |
581 | ||
dac94da8 EG |
582 | chanctx_conf = rcu_dereference(vif->chanctx_conf); |
583 | ||
584 | /* If channel context is invalid or not on 2.4GHz .. */ | |
585 | if ((!chanctx_conf || | |
586 | chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) { | |
587 | /* ... and it is an associated STATION, relax constraints */ | |
588 | if (vif->type == NL80211_IFTYPE_STATION && vif->bss_conf.assoc) | |
589 | iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, | |
590 | smps_mode); | |
f6fc5775 | 591 | iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); |
41069b46 | 592 | return; |
dac94da8 EG |
593 | } |
594 | ||
595 | /* SoftAP / GO will always be primary */ | |
596 | if (vif->type == NL80211_IFTYPE_AP) { | |
597 | if (!mvmvif->ap_active) | |
598 | return; | |
599 | ||
600 | /* the Ack / Cts kill mask must be default if AP / GO */ | |
601 | data->reduced_tx_power = false; | |
41069b46 | 602 | |
dac94da8 EG |
603 | if (chanctx_conf == data->primary) |
604 | return; | |
605 | ||
606 | /* downgrade the current primary no matter what its type is */ | |
607 | data->secondary = data->primary; | |
608 | data->primary = chanctx_conf; | |
9166b1ee EG |
609 | return; |
610 | } | |
611 | ||
39149911 EG |
612 | data->num_bss_ifaces++; |
613 | ||
dac94da8 EG |
614 | /* we are now a STA / P2P Client, and take associated ones only */ |
615 | if (!vif->bss_conf.assoc) | |
616 | return; | |
617 | ||
618 | /* STA / P2P Client, try to be primary if first vif */ | |
619 | if (!data->primary || data->primary == chanctx_conf) | |
620 | data->primary = chanctx_conf; | |
621 | else if (!data->secondary) | |
622 | /* if secondary is not NULL, it might be a GO */ | |
623 | data->secondary = chanctx_conf; | |
624 | ||
da8f8363 | 625 | if (le32_to_cpu(data->notif->bt_activity_grading) >= BT_HIGH_TRAFFIC) |
7da052b8 | 626 | smps_mode = IEEE80211_SMPS_STATIC; |
da8f8363 EG |
627 | else if (le32_to_cpu(data->notif->bt_activity_grading) >= |
628 | BT_LOW_TRAFFIC) | |
629 | smps_mode = IEEE80211_SMPS_DYNAMIC; | |
7da052b8 EG |
630 | |
631 | IWL_DEBUG_COEX(data->mvm, | |
dac94da8 | 632 | "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n", |
7da052b8 | 633 | mvmvif->id, data->notif->bt_status, |
dac94da8 | 634 | data->notif->bt_activity_grading, smps_mode); |
7da052b8 | 635 | |
9ee718aa | 636 | iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, smps_mode); |
2b76ef13 EG |
637 | |
638 | /* don't reduce the Tx power if in loose scheme */ | |
39149911 EG |
639 | if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT || |
640 | mvm->cfg->bt_shared_single_ant) { | |
641 | data->reduced_tx_power = false; | |
f6fc5775 | 642 | iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); |
2b76ef13 | 643 | return; |
39149911 | 644 | } |
2b76ef13 | 645 | |
4515f30f EG |
646 | /* reduced Txpower only if BT is on, so ...*/ |
647 | if (le32_to_cpu(data->notif->bt_activity_grading) == BT_OFF) { | |
2b76ef13 EG |
648 | /* ... cancel reduced Tx power ... */ |
649 | if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) | |
650 | IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); | |
9e511c31 | 651 | data->reduced_tx_power = false; |
2b76ef13 EG |
652 | |
653 | /* ... and there is no need to get reports on RSSI any more. */ | |
f6fc5775 | 654 | iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); |
2b76ef13 EG |
655 | return; |
656 | } | |
657 | ||
911222b5 AO |
658 | /* try to get the avg rssi from fw */ |
659 | ave_rssi = mvmvif->bf_data.ave_beacon_signal; | |
2b76ef13 EG |
660 | |
661 | /* if the RSSI isn't valid, fake it is very low */ | |
662 | if (!ave_rssi) | |
663 | ave_rssi = -100; | |
664 | if (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) { | |
665 | if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true)) | |
666 | IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); | |
667 | ||
668 | /* | |
669 | * bt_kill_msk can be BT_KILL_MSK_REDUCED_TXPOW only if all the | |
670 | * BSS / P2P clients have rssi above threshold. | |
671 | * We set the bt_kill_msk to BT_KILL_MSK_REDUCED_TXPOW before | |
672 | * the iteration, if one interface's rssi isn't good enough, | |
673 | * bt_kill_msk will be set to default values. | |
674 | */ | |
675 | } else if (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) { | |
676 | if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) | |
677 | IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); | |
678 | ||
679 | /* | |
680 | * One interface hasn't rssi above threshold, bt_kill_msk must | |
681 | * be set to default values. | |
682 | */ | |
9e511c31 | 683 | data->reduced_tx_power = false; |
2b76ef13 EG |
684 | } |
685 | ||
686 | /* Begin to monitor the RSSI: it may influence the reduced Tx power */ | |
f6fc5775 | 687 | iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi); |
7da052b8 EG |
688 | } |
689 | ||
d37cac98 | 690 | static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm) |
f421f9c3 | 691 | { |
2b76ef13 | 692 | struct iwl_bt_iterator_data data = { |
7da052b8 | 693 | .mvm = mvm, |
d37cac98 | 694 | .notif = &mvm->last_bt_notif, |
9e511c31 | 695 | .reduced_tx_power = true, |
7da052b8 | 696 | }; |
dac94da8 EG |
697 | struct iwl_bt_coex_ci_cmd cmd = {}; |
698 | u8 ci_bw_idx; | |
f421f9c3 | 699 | |
dac94da8 | 700 | rcu_read_lock(); |
7da052b8 EG |
701 | ieee80211_iterate_active_interfaces_atomic( |
702 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
703 | iwl_mvm_bt_notif_iterator, &data); | |
704 | ||
dac94da8 EG |
705 | if (data.primary) { |
706 | struct ieee80211_chanctx_conf *chan = data.primary; | |
707 | if (WARN_ON(!chan->def.chan)) { | |
708 | rcu_read_unlock(); | |
709 | return; | |
710 | } | |
711 | ||
712 | if (chan->def.width < NL80211_CHAN_WIDTH_40) { | |
713 | ci_bw_idx = 0; | |
714 | cmd.co_run_bw_primary = 0; | |
715 | } else { | |
716 | cmd.co_run_bw_primary = 1; | |
717 | if (chan->def.center_freq1 > | |
718 | chan->def.chan->center_freq) | |
719 | ci_bw_idx = 2; | |
720 | else | |
721 | ci_bw_idx = 1; | |
722 | } | |
723 | ||
724 | cmd.bt_primary_ci = | |
725 | iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; | |
726 | cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv); | |
727 | } | |
728 | ||
729 | if (data.secondary) { | |
730 | struct ieee80211_chanctx_conf *chan = data.secondary; | |
731 | if (WARN_ON(!data.secondary->def.chan)) { | |
732 | rcu_read_unlock(); | |
733 | return; | |
734 | } | |
735 | ||
736 | if (chan->def.width < NL80211_CHAN_WIDTH_40) { | |
737 | ci_bw_idx = 0; | |
738 | cmd.co_run_bw_secondary = 0; | |
739 | } else { | |
740 | cmd.co_run_bw_secondary = 1; | |
741 | if (chan->def.center_freq1 > | |
742 | chan->def.chan->center_freq) | |
743 | ci_bw_idx = 2; | |
744 | else | |
745 | ci_bw_idx = 1; | |
746 | } | |
747 | ||
748 | cmd.bt_secondary_ci = | |
749 | iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; | |
750 | cmd.secondary_ch_phy_id = *((u16 *)data.primary->drv_priv); | |
751 | } | |
752 | ||
753 | rcu_read_unlock(); | |
754 | ||
755 | /* Don't spam the fw with the same command over and over */ | |
756 | if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) { | |
757 | if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, CMD_SYNC, | |
758 | sizeof(cmd), &cmd)) | |
759 | IWL_ERR(mvm, "Failed to send BT_CI cmd"); | |
760 | memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd)); | |
761 | } | |
762 | ||
2b76ef13 EG |
763 | /* |
764 | * If there are no BSS / P2P client interfaces, reduced Tx Power is | |
765 | * irrelevant since it is based on the RSSI coming from the beacon. | |
766 | * Use BT_KILL_MSK_DEFAULT in that case. | |
767 | */ | |
9e511c31 | 768 | data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; |
2b76ef13 | 769 | |
9e511c31 | 770 | if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) |
2b76ef13 | 771 | IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); |
9166b1ee EG |
772 | } |
773 | ||
774 | /* upon association, the fw will send in BT Coex notification */ | |
775 | int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm, | |
776 | struct iwl_rx_cmd_buffer *rxb, | |
777 | struct iwl_device_cmd *dev_cmd) | |
778 | { | |
779 | struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
780 | struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data; | |
781 | ||
782 | ||
783 | IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n"); | |
dac94da8 EG |
784 | IWL_DEBUG_COEX(mvm, "\tBT status: %s\n", |
785 | notif->bt_status ? "ON" : "OFF"); | |
9166b1ee | 786 | IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn); |
dac94da8 EG |
787 | IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance); |
788 | IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n", | |
789 | le32_to_cpu(notif->primary_ch_lut)); | |
790 | IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n", | |
791 | le32_to_cpu(notif->secondary_ch_lut)); | |
792 | IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n", | |
793 | le32_to_cpu(notif->bt_activity_grading)); | |
9166b1ee EG |
794 | IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n", |
795 | notif->bt_agg_traffic_load); | |
9166b1ee | 796 | |
d37cac98 EG |
797 | /* remember this notification for future use: rssi fluctuations */ |
798 | memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif)); | |
799 | ||
800 | iwl_mvm_bt_coex_notif_handle(mvm); | |
2b76ef13 EG |
801 | |
802 | /* | |
803 | * This is an async handler for a notification, returning anything other | |
804 | * than 0 doesn't make sense even if HCMD failed. | |
805 | */ | |
806 | return 0; | |
807 | } | |
808 | ||
809 | static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac, | |
810 | struct ieee80211_vif *vif) | |
811 | { | |
812 | struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; | |
813 | struct iwl_bt_iterator_data *data = _data; | |
814 | struct iwl_mvm *mvm = data->mvm; | |
815 | ||
816 | struct ieee80211_sta *sta; | |
817 | struct iwl_mvm_sta *mvmsta; | |
818 | ||
f6fc5775 EG |
819 | struct ieee80211_chanctx_conf *chanctx_conf; |
820 | ||
821 | rcu_read_lock(); | |
822 | chanctx_conf = rcu_dereference(vif->chanctx_conf); | |
823 | /* If channel context is invalid or not on 2.4GHz - don't count it */ | |
824 | if (!chanctx_conf || | |
825 | chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) { | |
826 | rcu_read_unlock(); | |
827 | return; | |
828 | } | |
829 | rcu_read_unlock(); | |
830 | ||
2b76ef13 EG |
831 | if (vif->type != NL80211_IFTYPE_STATION || |
832 | mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) | |
833 | return; | |
834 | ||
835 | sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], | |
836 | lockdep_is_held(&mvm->mutex)); | |
837 | mvmsta = (void *)sta->drv_priv; | |
838 | ||
8e0366f9 EG |
839 | data->num_bss_ifaces++; |
840 | ||
2b76ef13 EG |
841 | /* |
842 | * This interface doesn't support reduced Tx power (because of low | |
843 | * RSSI probably), then set bt_kill_msk to default values. | |
844 | */ | |
845 | if (!mvmsta->bt_reduced_txpower) | |
9e511c31 | 846 | data->reduced_tx_power = false; |
2b76ef13 EG |
847 | /* else - possibly leave it to BT_KILL_MSK_REDUCED_TXPOW */ |
848 | } | |
849 | ||
850 | void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif, | |
851 | enum ieee80211_rssi_event rssi_event) | |
852 | { | |
853 | struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; | |
2b76ef13 EG |
854 | struct iwl_bt_iterator_data data = { |
855 | .mvm = mvm, | |
9e511c31 | 856 | .reduced_tx_power = true, |
2b76ef13 EG |
857 | }; |
858 | int ret; | |
859 | ||
3dd1cd2d | 860 | lockdep_assert_held(&mvm->mutex); |
2b76ef13 EG |
861 | |
862 | /* Rssi update while not associated ?! */ | |
863 | if (WARN_ON_ONCE(mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)) | |
3dd1cd2d | 864 | return; |
2b76ef13 | 865 | |
4515f30f EG |
866 | /* No BT - reports should be disabled */ |
867 | if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF) | |
3dd1cd2d | 868 | return; |
2b76ef13 EG |
869 | |
870 | IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid, | |
871 | rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW"); | |
872 | ||
873 | /* | |
874 | * Check if rssi is good enough for reduced Tx power, but not in loose | |
875 | * scheme. | |
876 | */ | |
39149911 | 877 | if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant || |
4515f30f | 878 | iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT) |
2b76ef13 EG |
879 | ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, |
880 | false); | |
f421f9c3 | 881 | else |
2b76ef13 | 882 | ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true); |
f421f9c3 | 883 | |
2b76ef13 EG |
884 | if (ret) |
885 | IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n"); | |
f421f9c3 | 886 | |
2b76ef13 EG |
887 | ieee80211_iterate_active_interfaces_atomic( |
888 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
889 | iwl_mvm_bt_rssi_iterator, &data); | |
f421f9c3 | 890 | |
2b76ef13 EG |
891 | /* |
892 | * If there are no BSS / P2P client interfaces, reduced Tx Power is | |
893 | * irrelevant since it is based on the RSSI coming from the beacon. | |
894 | * Use BT_KILL_MSK_DEFAULT in that case. | |
895 | */ | |
9e511c31 | 896 | data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; |
f421f9c3 | 897 | |
9e511c31 | 898 | if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) |
2b76ef13 | 899 | IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); |
f421f9c3 | 900 | } |
9166b1ee | 901 | |
9145d151 EG |
902 | #define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) |
903 | #define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200) | |
904 | ||
905 | u16 iwl_mvm_bt_coex_agg_time_limit(struct iwl_mvm *mvm, | |
906 | struct ieee80211_sta *sta) | |
907 | { | |
908 | struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv; | |
909 | enum iwl_bt_coex_lut_type lut_type; | |
910 | ||
911 | if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < | |
912 | BT_LOW_TRAFFIC) | |
913 | return LINK_QUAL_AGG_TIME_LIMIT_DEF; | |
914 | ||
915 | lut_type = iwl_get_coex_type(mvm, mvmsta->vif); | |
916 | ||
917 | if (lut_type == BT_COEX_LOOSE_LUT) | |
918 | return LINK_QUAL_AGG_TIME_LIMIT_DEF; | |
919 | ||
920 | /* tight coex, high bt traffic, reduce AGG time limit */ | |
921 | return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT; | |
922 | } | |
923 | ||
8e484f0b | 924 | void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm) |
9166b1ee | 925 | { |
dac94da8 EG |
926 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX)) |
927 | return; | |
928 | ||
d37cac98 | 929 | iwl_mvm_bt_coex_notif_handle(mvm); |
9166b1ee | 930 | } |