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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 | * | |
51368bf7 | 8 | * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. |
931d4160 EG |
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 | * | |
51368bf7 | 33 | * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. |
931d4160 EG |
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 | { | |
d2ccc902 | 297 | cpu_to_le64(0xFFC0000000ULL), |
dac94da8 | 298 | cpu_to_le64(0x0ULL), |
d2ccc902 | 299 | cpu_to_le64(0x0ULL) |
dac94da8 | 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 | | |
dac94da8 EG |
394 | BT_VALID_CORUN_LUT_20 | |
395 | BT_VALID_CORUN_LUT_40 | | |
396 | BT_VALID_ANT_ISOLATION | | |
397 | BT_VALID_ANT_ISOLATION_THRS | | |
398 | BT_VALID_TXTX_DELTA_FREQ_THRS | | |
b9c509cc EG |
399 | BT_VALID_TXRX_MAX_FREQ_0 | |
400 | BT_VALID_SYNC_TO_SCO); | |
dac94da8 | 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; | |
7352cac0 | 474 | bt_cmd->flags = cpu_to_le32(BT_COEX_NW); |
03e304e4 EG |
475 | |
476 | bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ack_kill_msk[bt_kill_msk]); | |
477 | bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_cts_kill_msk[bt_kill_msk]); | |
7352cac0 EG |
478 | bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE | |
479 | BT_VALID_KILL_ACK | | |
480 | BT_VALID_KILL_CTS); | |
2b76ef13 | 481 | |
dac94da8 EG |
482 | IWL_DEBUG_COEX(mvm, "ACK Kill msk = 0x%08x, CTS Kill msk = 0x%08x\n", |
483 | iwl_bt_ack_kill_msk[bt_kill_msk], | |
484 | iwl_bt_cts_kill_msk[bt_kill_msk]); | |
03e304e4 EG |
485 | |
486 | ret = iwl_mvm_send_cmd(mvm, &cmd); | |
487 | ||
488 | kfree(bt_cmd); | |
489 | return ret; | |
2b76ef13 EG |
490 | } |
491 | ||
492 | static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id, | |
493 | bool enable) | |
494 | { | |
03e304e4 EG |
495 | struct iwl_bt_coex_cmd *bt_cmd; |
496 | /* Send ASYNC since this can be sent from an atomic context */ | |
497 | struct iwl_host_cmd cmd = { | |
498 | .id = BT_CONFIG, | |
499 | .len = { sizeof(*bt_cmd), }, | |
500 | .dataflags = { IWL_HCMD_DFL_DUP, }, | |
501 | .flags = CMD_ASYNC, | |
2b76ef13 | 502 | }; |
03e304e4 | 503 | |
2b76ef13 EG |
504 | struct ieee80211_sta *sta; |
505 | struct iwl_mvm_sta *mvmsta; | |
03e304e4 | 506 | int ret; |
2b76ef13 | 507 | |
2b76ef13 EG |
508 | if (sta_id == IWL_MVM_STATION_COUNT) |
509 | return 0; | |
510 | ||
511 | sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], | |
512 | lockdep_is_held(&mvm->mutex)); | |
22cba0c0 EG |
513 | |
514 | /* This can happen if the station has been removed right now */ | |
515 | if (IS_ERR_OR_NULL(sta)) | |
516 | return 0; | |
517 | ||
5b577a90 | 518 | mvmsta = iwl_mvm_sta_from_mac80211(sta); |
2b76ef13 EG |
519 | |
520 | /* nothing to do */ | |
521 | if (mvmsta->bt_reduced_txpower == enable) | |
522 | return 0; | |
523 | ||
03e304e4 EG |
524 | bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC); |
525 | if (!bt_cmd) | |
526 | return -ENOMEM; | |
527 | cmd.data[0] = bt_cmd; | |
7352cac0 | 528 | bt_cmd->flags = cpu_to_le32(BT_COEX_NW); |
03e304e4 | 529 | |
7352cac0 EG |
530 | bt_cmd->valid_bit_msk = |
531 | cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER); | |
03e304e4 EG |
532 | bt_cmd->bt_reduced_tx_power = sta_id; |
533 | ||
2b76ef13 | 534 | if (enable) |
03e304e4 | 535 | bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT; |
2b76ef13 EG |
536 | |
537 | IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n", | |
538 | enable ? "en" : "dis", sta_id); | |
539 | ||
540 | mvmsta->bt_reduced_txpower = enable; | |
541 | ||
03e304e4 EG |
542 | ret = iwl_mvm_send_cmd(mvm, &cmd); |
543 | ||
544 | kfree(bt_cmd); | |
545 | return ret; | |
2b76ef13 EG |
546 | } |
547 | ||
548 | struct iwl_bt_iterator_data { | |
7da052b8 | 549 | struct iwl_bt_coex_profile_notif *notif; |
2b76ef13 EG |
550 | struct iwl_mvm *mvm; |
551 | u32 num_bss_ifaces; | |
9e511c31 | 552 | bool reduced_tx_power; |
dac94da8 EG |
553 | struct ieee80211_chanctx_conf *primary; |
554 | struct ieee80211_chanctx_conf *secondary; | |
7da052b8 EG |
555 | }; |
556 | ||
f6fc5775 EG |
557 | static inline |
558 | void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm, | |
559 | struct ieee80211_vif *vif, | |
560 | bool enable, int rssi) | |
561 | { | |
562 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
563 | ||
564 | mvmvif->bf_data.last_bt_coex_event = rssi; | |
565 | mvmvif->bf_data.bt_coex_max_thold = | |
566 | enable ? BT_ENABLE_REDUCED_TXPOWER_THRESHOLD : 0; | |
567 | mvmvif->bf_data.bt_coex_min_thold = | |
568 | enable ? BT_DISABLE_REDUCED_TXPOWER_THRESHOLD : 0; | |
569 | } | |
570 | ||
dac94da8 | 571 | /* must be called under rcu_read_lock */ |
7da052b8 EG |
572 | static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac, |
573 | struct ieee80211_vif *vif) | |
574 | { | |
575 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2b76ef13 EG |
576 | struct iwl_bt_iterator_data *data = _data; |
577 | struct iwl_mvm *mvm = data->mvm; | |
7da052b8 EG |
578 | struct ieee80211_chanctx_conf *chanctx_conf; |
579 | enum ieee80211_smps_mode smps_mode; | |
2b76ef13 | 580 | int ave_rssi; |
7da052b8 | 581 | |
9ee718aa | 582 | lockdep_assert_held(&mvm->mutex); |
7da052b8 | 583 | |
dac94da8 EG |
584 | if (vif->type != NL80211_IFTYPE_STATION && |
585 | vif->type != NL80211_IFTYPE_AP) | |
586 | return; | |
7da052b8 | 587 | |
7da052b8 EG |
588 | smps_mode = IEEE80211_SMPS_AUTOMATIC; |
589 | ||
dac94da8 EG |
590 | chanctx_conf = rcu_dereference(vif->chanctx_conf); |
591 | ||
592 | /* If channel context is invalid or not on 2.4GHz .. */ | |
593 | if ((!chanctx_conf || | |
594 | chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) { | |
595 | /* ... and it is an associated STATION, relax constraints */ | |
596 | if (vif->type == NL80211_IFTYPE_STATION && vif->bss_conf.assoc) | |
597 | iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, | |
598 | smps_mode); | |
f6fc5775 | 599 | iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); |
41069b46 | 600 | return; |
dac94da8 EG |
601 | } |
602 | ||
603 | /* SoftAP / GO will always be primary */ | |
604 | if (vif->type == NL80211_IFTYPE_AP) { | |
5023d966 | 605 | if (!mvmvif->ap_ibss_active) |
dac94da8 EG |
606 | return; |
607 | ||
608 | /* the Ack / Cts kill mask must be default if AP / GO */ | |
609 | data->reduced_tx_power = false; | |
41069b46 | 610 | |
dac94da8 EG |
611 | if (chanctx_conf == data->primary) |
612 | return; | |
613 | ||
614 | /* downgrade the current primary no matter what its type is */ | |
615 | data->secondary = data->primary; | |
616 | data->primary = chanctx_conf; | |
9166b1ee EG |
617 | return; |
618 | } | |
619 | ||
39149911 EG |
620 | data->num_bss_ifaces++; |
621 | ||
dac94da8 EG |
622 | /* we are now a STA / P2P Client, and take associated ones only */ |
623 | if (!vif->bss_conf.assoc) | |
624 | return; | |
625 | ||
626 | /* STA / P2P Client, try to be primary if first vif */ | |
627 | if (!data->primary || data->primary == chanctx_conf) | |
628 | data->primary = chanctx_conf; | |
629 | else if (!data->secondary) | |
630 | /* if secondary is not NULL, it might be a GO */ | |
631 | data->secondary = chanctx_conf; | |
632 | ||
da8f8363 | 633 | if (le32_to_cpu(data->notif->bt_activity_grading) >= BT_HIGH_TRAFFIC) |
7da052b8 | 634 | smps_mode = IEEE80211_SMPS_STATIC; |
da8f8363 EG |
635 | else if (le32_to_cpu(data->notif->bt_activity_grading) >= |
636 | BT_LOW_TRAFFIC) | |
637 | smps_mode = IEEE80211_SMPS_DYNAMIC; | |
7da052b8 EG |
638 | |
639 | IWL_DEBUG_COEX(data->mvm, | |
dac94da8 | 640 | "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n", |
7da052b8 | 641 | mvmvif->id, data->notif->bt_status, |
dac94da8 | 642 | data->notif->bt_activity_grading, smps_mode); |
7da052b8 | 643 | |
9ee718aa | 644 | iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, smps_mode); |
2b76ef13 EG |
645 | |
646 | /* don't reduce the Tx power if in loose scheme */ | |
39149911 EG |
647 | if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT || |
648 | mvm->cfg->bt_shared_single_ant) { | |
649 | data->reduced_tx_power = false; | |
f6fc5775 | 650 | iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); |
2b76ef13 | 651 | return; |
39149911 | 652 | } |
2b76ef13 | 653 | |
4515f30f | 654 | /* reduced Txpower only if BT is on, so ...*/ |
0af8835e | 655 | if (!data->notif->bt_status) { |
2b76ef13 EG |
656 | /* ... cancel reduced Tx power ... */ |
657 | if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) | |
658 | IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); | |
9e511c31 | 659 | data->reduced_tx_power = false; |
2b76ef13 EG |
660 | |
661 | /* ... and there is no need to get reports on RSSI any more. */ | |
f6fc5775 | 662 | iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); |
2b76ef13 EG |
663 | return; |
664 | } | |
665 | ||
911222b5 AO |
666 | /* try to get the avg rssi from fw */ |
667 | ave_rssi = mvmvif->bf_data.ave_beacon_signal; | |
2b76ef13 EG |
668 | |
669 | /* if the RSSI isn't valid, fake it is very low */ | |
670 | if (!ave_rssi) | |
671 | ave_rssi = -100; | |
672 | if (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) { | |
673 | if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true)) | |
674 | IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); | |
675 | ||
676 | /* | |
677 | * bt_kill_msk can be BT_KILL_MSK_REDUCED_TXPOW only if all the | |
678 | * BSS / P2P clients have rssi above threshold. | |
679 | * We set the bt_kill_msk to BT_KILL_MSK_REDUCED_TXPOW before | |
680 | * the iteration, if one interface's rssi isn't good enough, | |
681 | * bt_kill_msk will be set to default values. | |
682 | */ | |
683 | } else if (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) { | |
684 | if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) | |
685 | IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); | |
686 | ||
687 | /* | |
688 | * One interface hasn't rssi above threshold, bt_kill_msk must | |
689 | * be set to default values. | |
690 | */ | |
9e511c31 | 691 | data->reduced_tx_power = false; |
2b76ef13 EG |
692 | } |
693 | ||
694 | /* Begin to monitor the RSSI: it may influence the reduced Tx power */ | |
f6fc5775 | 695 | iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi); |
7da052b8 EG |
696 | } |
697 | ||
d37cac98 | 698 | static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm) |
f421f9c3 | 699 | { |
2b76ef13 | 700 | struct iwl_bt_iterator_data data = { |
7da052b8 | 701 | .mvm = mvm, |
d37cac98 | 702 | .notif = &mvm->last_bt_notif, |
9e511c31 | 703 | .reduced_tx_power = true, |
7da052b8 | 704 | }; |
dac94da8 EG |
705 | struct iwl_bt_coex_ci_cmd cmd = {}; |
706 | u8 ci_bw_idx; | |
f421f9c3 | 707 | |
dac94da8 | 708 | rcu_read_lock(); |
7da052b8 EG |
709 | ieee80211_iterate_active_interfaces_atomic( |
710 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
711 | iwl_mvm_bt_notif_iterator, &data); | |
712 | ||
dac94da8 EG |
713 | if (data.primary) { |
714 | struct ieee80211_chanctx_conf *chan = data.primary; | |
715 | if (WARN_ON(!chan->def.chan)) { | |
716 | rcu_read_unlock(); | |
717 | return; | |
718 | } | |
719 | ||
720 | if (chan->def.width < NL80211_CHAN_WIDTH_40) { | |
721 | ci_bw_idx = 0; | |
722 | cmd.co_run_bw_primary = 0; | |
723 | } else { | |
724 | cmd.co_run_bw_primary = 1; | |
725 | if (chan->def.center_freq1 > | |
726 | chan->def.chan->center_freq) | |
727 | ci_bw_idx = 2; | |
728 | else | |
729 | ci_bw_idx = 1; | |
730 | } | |
731 | ||
732 | cmd.bt_primary_ci = | |
733 | iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; | |
734 | cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv); | |
735 | } | |
736 | ||
737 | if (data.secondary) { | |
738 | struct ieee80211_chanctx_conf *chan = data.secondary; | |
739 | if (WARN_ON(!data.secondary->def.chan)) { | |
740 | rcu_read_unlock(); | |
741 | return; | |
742 | } | |
743 | ||
744 | if (chan->def.width < NL80211_CHAN_WIDTH_40) { | |
745 | ci_bw_idx = 0; | |
746 | cmd.co_run_bw_secondary = 0; | |
747 | } else { | |
748 | cmd.co_run_bw_secondary = 1; | |
749 | if (chan->def.center_freq1 > | |
750 | chan->def.chan->center_freq) | |
751 | ci_bw_idx = 2; | |
752 | else | |
753 | ci_bw_idx = 1; | |
754 | } | |
755 | ||
756 | cmd.bt_secondary_ci = | |
757 | iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; | |
c92f06a1 | 758 | cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv); |
dac94da8 EG |
759 | } |
760 | ||
761 | rcu_read_unlock(); | |
762 | ||
763 | /* Don't spam the fw with the same command over and over */ | |
764 | if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) { | |
765 | if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, CMD_SYNC, | |
766 | sizeof(cmd), &cmd)) | |
767 | IWL_ERR(mvm, "Failed to send BT_CI cmd"); | |
768 | memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd)); | |
769 | } | |
770 | ||
2b76ef13 EG |
771 | /* |
772 | * If there are no BSS / P2P client interfaces, reduced Tx Power is | |
773 | * irrelevant since it is based on the RSSI coming from the beacon. | |
774 | * Use BT_KILL_MSK_DEFAULT in that case. | |
775 | */ | |
9e511c31 | 776 | data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; |
2b76ef13 | 777 | |
9e511c31 | 778 | if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) |
2b76ef13 | 779 | IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); |
9166b1ee EG |
780 | } |
781 | ||
782 | /* upon association, the fw will send in BT Coex notification */ | |
783 | int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm, | |
784 | struct iwl_rx_cmd_buffer *rxb, | |
785 | struct iwl_device_cmd *dev_cmd) | |
786 | { | |
787 | struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
788 | struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data; | |
789 | ||
790 | ||
791 | IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n"); | |
dac94da8 EG |
792 | IWL_DEBUG_COEX(mvm, "\tBT status: %s\n", |
793 | notif->bt_status ? "ON" : "OFF"); | |
9166b1ee | 794 | IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn); |
dac94da8 EG |
795 | IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance); |
796 | IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n", | |
797 | le32_to_cpu(notif->primary_ch_lut)); | |
798 | IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n", | |
799 | le32_to_cpu(notif->secondary_ch_lut)); | |
800 | IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n", | |
801 | le32_to_cpu(notif->bt_activity_grading)); | |
9166b1ee EG |
802 | IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n", |
803 | notif->bt_agg_traffic_load); | |
9166b1ee | 804 | |
d37cac98 EG |
805 | /* remember this notification for future use: rssi fluctuations */ |
806 | memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif)); | |
807 | ||
808 | iwl_mvm_bt_coex_notif_handle(mvm); | |
2b76ef13 EG |
809 | |
810 | /* | |
811 | * This is an async handler for a notification, returning anything other | |
812 | * than 0 doesn't make sense even if HCMD failed. | |
813 | */ | |
814 | return 0; | |
815 | } | |
816 | ||
817 | static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac, | |
818 | struct ieee80211_vif *vif) | |
819 | { | |
820 | struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; | |
821 | struct iwl_bt_iterator_data *data = _data; | |
822 | struct iwl_mvm *mvm = data->mvm; | |
823 | ||
824 | struct ieee80211_sta *sta; | |
825 | struct iwl_mvm_sta *mvmsta; | |
826 | ||
f6fc5775 EG |
827 | struct ieee80211_chanctx_conf *chanctx_conf; |
828 | ||
829 | rcu_read_lock(); | |
830 | chanctx_conf = rcu_dereference(vif->chanctx_conf); | |
831 | /* If channel context is invalid or not on 2.4GHz - don't count it */ | |
832 | if (!chanctx_conf || | |
833 | chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) { | |
834 | rcu_read_unlock(); | |
835 | return; | |
836 | } | |
837 | rcu_read_unlock(); | |
838 | ||
2b76ef13 EG |
839 | if (vif->type != NL80211_IFTYPE_STATION || |
840 | mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) | |
841 | return; | |
842 | ||
843 | sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], | |
844 | lockdep_is_held(&mvm->mutex)); | |
56c07a9c EG |
845 | |
846 | /* This can happen if the station has been removed right now */ | |
847 | if (IS_ERR_OR_NULL(sta)) | |
848 | return; | |
849 | ||
5b577a90 | 850 | mvmsta = iwl_mvm_sta_from_mac80211(sta); |
2b76ef13 | 851 | |
8e0366f9 EG |
852 | data->num_bss_ifaces++; |
853 | ||
2b76ef13 EG |
854 | /* |
855 | * This interface doesn't support reduced Tx power (because of low | |
856 | * RSSI probably), then set bt_kill_msk to default values. | |
857 | */ | |
858 | if (!mvmsta->bt_reduced_txpower) | |
9e511c31 | 859 | data->reduced_tx_power = false; |
2b76ef13 EG |
860 | /* else - possibly leave it to BT_KILL_MSK_REDUCED_TXPOW */ |
861 | } | |
862 | ||
863 | void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif, | |
864 | enum ieee80211_rssi_event rssi_event) | |
865 | { | |
866 | struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; | |
2b76ef13 EG |
867 | struct iwl_bt_iterator_data data = { |
868 | .mvm = mvm, | |
9e511c31 | 869 | .reduced_tx_power = true, |
2b76ef13 EG |
870 | }; |
871 | int ret; | |
872 | ||
3dd1cd2d | 873 | lockdep_assert_held(&mvm->mutex); |
2b76ef13 EG |
874 | |
875 | /* Rssi update while not associated ?! */ | |
876 | if (WARN_ON_ONCE(mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)) | |
3dd1cd2d | 877 | return; |
2b76ef13 | 878 | |
4515f30f | 879 | /* No BT - reports should be disabled */ |
0af8835e | 880 | if (!mvm->last_bt_notif.bt_status) |
3dd1cd2d | 881 | return; |
2b76ef13 EG |
882 | |
883 | IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid, | |
884 | rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW"); | |
885 | ||
886 | /* | |
887 | * Check if rssi is good enough for reduced Tx power, but not in loose | |
888 | * scheme. | |
889 | */ | |
39149911 | 890 | if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant || |
4515f30f | 891 | iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT) |
2b76ef13 EG |
892 | ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, |
893 | false); | |
f421f9c3 | 894 | else |
2b76ef13 | 895 | ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true); |
f421f9c3 | 896 | |
2b76ef13 EG |
897 | if (ret) |
898 | IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n"); | |
f421f9c3 | 899 | |
2b76ef13 EG |
900 | ieee80211_iterate_active_interfaces_atomic( |
901 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
902 | iwl_mvm_bt_rssi_iterator, &data); | |
f421f9c3 | 903 | |
2b76ef13 EG |
904 | /* |
905 | * If there are no BSS / P2P client interfaces, reduced Tx Power is | |
906 | * irrelevant since it is based on the RSSI coming from the beacon. | |
907 | * Use BT_KILL_MSK_DEFAULT in that case. | |
908 | */ | |
9e511c31 | 909 | data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; |
f421f9c3 | 910 | |
9e511c31 | 911 | if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) |
2b76ef13 | 912 | IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); |
f421f9c3 | 913 | } |
9166b1ee | 914 | |
9145d151 EG |
915 | #define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) |
916 | #define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200) | |
917 | ||
918 | u16 iwl_mvm_bt_coex_agg_time_limit(struct iwl_mvm *mvm, | |
919 | struct ieee80211_sta *sta) | |
920 | { | |
5b577a90 | 921 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); |
9145d151 EG |
922 | enum iwl_bt_coex_lut_type lut_type; |
923 | ||
924 | if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < | |
c2119351 | 925 | BT_HIGH_TRAFFIC) |
9145d151 EG |
926 | return LINK_QUAL_AGG_TIME_LIMIT_DEF; |
927 | ||
928 | lut_type = iwl_get_coex_type(mvm, mvmsta->vif); | |
929 | ||
930 | if (lut_type == BT_COEX_LOOSE_LUT) | |
931 | return LINK_QUAL_AGG_TIME_LIMIT_DEF; | |
932 | ||
933 | /* tight coex, high bt traffic, reduce AGG time limit */ | |
934 | return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT; | |
935 | } | |
936 | ||
ffa6c707 EG |
937 | bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm, |
938 | struct ieee80211_sta *sta) | |
939 | { | |
5b577a90 | 940 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); |
ffa6c707 EG |
941 | |
942 | if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < | |
943 | BT_HIGH_TRAFFIC) | |
944 | return true; | |
945 | ||
946 | /* | |
947 | * In Tight, BT can't Rx while we Tx, so use both antennas since BT is | |
948 | * already killed. | |
949 | * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while we | |
950 | * Tx. | |
951 | */ | |
952 | return iwl_get_coex_type(mvm, mvmsta->vif) == BT_COEX_TIGHT_LUT; | |
953 | } | |
954 | ||
8e484f0b | 955 | void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm) |
9166b1ee | 956 | { |
dac94da8 EG |
957 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX)) |
958 | return; | |
959 | ||
d37cac98 | 960 | iwl_mvm_bt_coex_notif_handle(mvm); |
9166b1ee | 961 | } |