coex.c revision e78973efe76f7a9eed9d8fbd74106e51fec92c73
1/****************************************************************************** 2 * 3 * This file is provided under a dual BSD/GPLv2 license. When using or 4 * redistributing this file, you may do so under either license. 5 * 6 * GPL LICENSE SUMMARY 7 * 8 * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of version 2 of the GNU General Public License as 12 * published by the Free Software Foundation. 13 * 14 * This program is distributed in the hope that it will be useful, but 15 * WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 17 * General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 22 * USA 23 * 24 * The full GNU General Public License is included in this distribution 25 * in the file called COPYING. 26 * 27 * Contact Information: 28 * Intel Linux Wireless <ilw@linux.intel.com> 29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 30 * 31 * BSD LICENSE 32 * 33 * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. 34 * All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 40 * * Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * * Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in 44 * the documentation and/or other materials provided with the 45 * distribution. 46 * * Neither the name Intel Corporation nor the names of its 47 * contributors may be used to endorse or promote products derived 48 * from this software without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 61 * 62 *****************************************************************************/ 63 64#include <linux/ieee80211.h> 65#include <linux/etherdevice.h> 66#include <net/mac80211.h> 67 68#include "fw-api-coex.h" 69#include "iwl-modparams.h" 70#include "mvm.h" 71#include "iwl-debug.h" 72 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 102 103#define BT_ENABLE_REDUCED_TXPOWER_THRESHOLD (-62) 104#define BT_DISABLE_REDUCED_TXPOWER_THRESHOLD (-65) 105#define BT_ANTENNA_COUPLING_THRESHOLD (30) 106 107int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm) 108{ 109 return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, CMD_SYNC, 110 sizeof(struct iwl_bt_coex_prio_tbl_cmd), 111 &iwl_bt_prio_tbl); 112} 113 114const u32 iwl_bt_ack_kill_msk[BT_KILL_MSK_MAX] = { 115 [BT_KILL_MSK_DEFAULT] = 0xffff0000, 116 [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff, 117 [BT_KILL_MSK_REDUCED_TXPOW] = 0, 118}; 119 120const u32 iwl_bt_cts_kill_msk[BT_KILL_MSK_MAX] = { 121 [BT_KILL_MSK_DEFAULT] = 0xffff0000, 122 [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff, 123 [BT_KILL_MSK_REDUCED_TXPOW] = 0, 124}; 125 126static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = { 127 cpu_to_le32(0xf0f0f0f0), 128 cpu_to_le32(0xc0c0c0c0), 129 cpu_to_le32(0xfcfcfcfc), 130 cpu_to_le32(0xff00ff00), 131}; 132 133static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = { 134 { 135 cpu_to_le32(0x40000000), 136 cpu_to_le32(0x00000000), 137 cpu_to_le32(0x44000000), 138 cpu_to_le32(0x00000000), 139 cpu_to_le32(0x40000000), 140 cpu_to_le32(0x00000000), 141 cpu_to_le32(0x44000000), 142 cpu_to_le32(0x00000000), 143 cpu_to_le32(0xc0004000), 144 cpu_to_le32(0xf0005000), 145 cpu_to_le32(0xc0004000), 146 cpu_to_le32(0xf0005000), 147 }, 148 { 149 cpu_to_le32(0x40000000), 150 cpu_to_le32(0x00000000), 151 cpu_to_le32(0x44000000), 152 cpu_to_le32(0x00000000), 153 cpu_to_le32(0x40000000), 154 cpu_to_le32(0x00000000), 155 cpu_to_le32(0x44000000), 156 cpu_to_le32(0x00000000), 157 cpu_to_le32(0xc0004000), 158 cpu_to_le32(0xf0005000), 159 cpu_to_le32(0xc0004000), 160 cpu_to_le32(0xf0005000), 161 }, 162 { 163 cpu_to_le32(0x40000000), 164 cpu_to_le32(0x00000000), 165 cpu_to_le32(0x44000000), 166 cpu_to_le32(0x00000000), 167 cpu_to_le32(0x40000000), 168 cpu_to_le32(0x00000000), 169 cpu_to_le32(0x44000000), 170 cpu_to_le32(0x00000000), 171 cpu_to_le32(0xc0004000), 172 cpu_to_le32(0xf0005000), 173 cpu_to_le32(0xc0004000), 174 cpu_to_le32(0xf0005000), 175 }, 176}; 177 178static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = { 179 { 180 /* Tight */ 181 cpu_to_le32(0xaaaaaaaa), 182 cpu_to_le32(0xaaaaaaaa), 183 cpu_to_le32(0xaeaaaaaa), 184 cpu_to_le32(0xaaaaaaaa), 185 cpu_to_le32(0xcc00ff28), 186 cpu_to_le32(0x0000aaaa), 187 cpu_to_le32(0xcc00aaaa), 188 cpu_to_le32(0x0000aaaa), 189 cpu_to_le32(0xc0004000), 190 cpu_to_le32(0x00000000), 191 cpu_to_le32(0xf0005000), 192 cpu_to_le32(0xf0005000), 193 }, 194 { 195 /* Loose */ 196 cpu_to_le32(0xaaaaaaaa), 197 cpu_to_le32(0xaaaaaaaa), 198 cpu_to_le32(0xaaaaaaaa), 199 cpu_to_le32(0xaaaaaaaa), 200 cpu_to_le32(0xcc00ff28), 201 cpu_to_le32(0x0000aaaa), 202 cpu_to_le32(0xcc00aaaa), 203 cpu_to_le32(0x0000aaaa), 204 cpu_to_le32(0x00000000), 205 cpu_to_le32(0x00000000), 206 cpu_to_le32(0xf0005000), 207 cpu_to_le32(0xf0005000), 208 }, 209 { 210 /* Tx Tx disabled */ 211 cpu_to_le32(0xaaaaaaaa), 212 cpu_to_le32(0xaaaaaaaa), 213 cpu_to_le32(0xaaaaaaaa), 214 cpu_to_le32(0xaaaaaaaa), 215 cpu_to_le32(0xcc00ff28), 216 cpu_to_le32(0x0000aaaa), 217 cpu_to_le32(0xcc00aaaa), 218 cpu_to_le32(0x0000aaaa), 219 cpu_to_le32(0xC0004000), 220 cpu_to_le32(0xC0004000), 221 cpu_to_le32(0xF0005000), 222 cpu_to_le32(0xF0005000), 223 }, 224}; 225 226/* 20MHz / 40MHz below / 40Mhz above*/ 227static const __le64 iwl_ci_mask[][3] = { 228 /* dummy entry for channel 0 */ 229 {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)}, 230 { 231 cpu_to_le64(0x0000001FFFULL), 232 cpu_to_le64(0x0ULL), 233 cpu_to_le64(0x00007FFFFFULL), 234 }, 235 { 236 cpu_to_le64(0x000000FFFFULL), 237 cpu_to_le64(0x0ULL), 238 cpu_to_le64(0x0003FFFFFFULL), 239 }, 240 { 241 cpu_to_le64(0x000003FFFCULL), 242 cpu_to_le64(0x0ULL), 243 cpu_to_le64(0x000FFFFFFCULL), 244 }, 245 { 246 cpu_to_le64(0x00001FFFE0ULL), 247 cpu_to_le64(0x0ULL), 248 cpu_to_le64(0x007FFFFFE0ULL), 249 }, 250 { 251 cpu_to_le64(0x00007FFF80ULL), 252 cpu_to_le64(0x00007FFFFFULL), 253 cpu_to_le64(0x01FFFFFF80ULL), 254 }, 255 { 256 cpu_to_le64(0x0003FFFC00ULL), 257 cpu_to_le64(0x0003FFFFFFULL), 258 cpu_to_le64(0x0FFFFFFC00ULL), 259 }, 260 { 261 cpu_to_le64(0x000FFFF000ULL), 262 cpu_to_le64(0x000FFFFFFCULL), 263 cpu_to_le64(0x3FFFFFF000ULL), 264 }, 265 { 266 cpu_to_le64(0x007FFF8000ULL), 267 cpu_to_le64(0x007FFFFFE0ULL), 268 cpu_to_le64(0xFFFFFF8000ULL), 269 }, 270 { 271 cpu_to_le64(0x01FFFE0000ULL), 272 cpu_to_le64(0x01FFFFFF80ULL), 273 cpu_to_le64(0xFFFFFE0000ULL), 274 }, 275 { 276 cpu_to_le64(0x0FFFF00000ULL), 277 cpu_to_le64(0x0FFFFFFC00ULL), 278 cpu_to_le64(0x0ULL), 279 }, 280 { 281 cpu_to_le64(0x3FFFC00000ULL), 282 cpu_to_le64(0x3FFFFFF000ULL), 283 cpu_to_le64(0x0) 284 }, 285 { 286 cpu_to_le64(0xFFFE000000ULL), 287 cpu_to_le64(0xFFFFFF8000ULL), 288 cpu_to_le64(0x0) 289 }, 290 { 291 cpu_to_le64(0xFFF8000000ULL), 292 cpu_to_le64(0xFFFFFE0000ULL), 293 cpu_to_le64(0x0) 294 }, 295 { 296 cpu_to_le64(0xFFC0000000ULL), 297 cpu_to_le64(0x0ULL), 298 cpu_to_le64(0x0ULL) 299 }, 300}; 301 302static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = { 303 cpu_to_le32(0x22002200), 304 cpu_to_le32(0x33113311), 305}; 306 307struct corunning_block_luts { 308 u8 range; 309 __le32 lut20[BT_COEX_CORUN_LUT_SIZE]; 310}; 311 312/* 313 * Ranges for the antenna coupling calibration / co-running block LUT: 314 * LUT0: [ 0, 12[ 315 * LUT1: [12, 20[ 316 * LUT2: [20, 21[ 317 * LUT3: [21, 23[ 318 * LUT4: [23, 27[ 319 * LUT5: [27, 30[ 320 * LUT6: [30, 32[ 321 * LUT7: [32, 33[ 322 * LUT8: [33, - [ 323 */ 324static const struct corunning_block_luts antenna_coupling_ranges[] = { 325 { 326 .range = 0, 327 .lut20 = { 328 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 329 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 330 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 331 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 332 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 333 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 334 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 335 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 }, 345 }, 346 { 347 .range = 12, 348 .lut20 = { 349 cpu_to_le32(0x00000001), cpu_to_le32(0x00000000), 350 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 351 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 352 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 353 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 354 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 355 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 356 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 }, 366 }, 367 { 368 .range = 20, 369 .lut20 = { 370 cpu_to_le32(0x00000002), cpu_to_le32(0x00000000), 371 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 372 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 373 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 374 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 375 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 376 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 377 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 378 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 379 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 380 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 381 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 382 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 383 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 384 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 385 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 386 }, 387 }, 388 { 389 .range = 21, 390 .lut20 = { 391 cpu_to_le32(0x00000003), cpu_to_le32(0x00000000), 392 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 393 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 394 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 395 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 396 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 397 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 398 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 399 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 400 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 401 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 402 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 403 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 404 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 405 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 406 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 407 }, 408 }, 409 { 410 .range = 23, 411 .lut20 = { 412 cpu_to_le32(0x00000004), cpu_to_le32(0x00000000), 413 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 414 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 415 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 416 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 417 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 418 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 419 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 420 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 421 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 422 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 423 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 424 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 425 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 426 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 427 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 428 }, 429 }, 430 { 431 .range = 27, 432 .lut20 = { 433 cpu_to_le32(0x00000005), cpu_to_le32(0x00000000), 434 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 435 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 436 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 437 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 438 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 439 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 440 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 441 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 442 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 443 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 444 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 445 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 446 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 447 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 448 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 449 }, 450 }, 451 { 452 .range = 30, 453 .lut20 = { 454 cpu_to_le32(0x00000006), cpu_to_le32(0x00000000), 455 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 456 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 457 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 458 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 459 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 460 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 461 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 462 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 463 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 464 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 465 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 466 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 467 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 468 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 469 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 470 }, 471 }, 472 { 473 .range = 32, 474 .lut20 = { 475 cpu_to_le32(0x00000007), cpu_to_le32(0x00000000), 476 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 477 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 478 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 479 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 480 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 481 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 482 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 483 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 484 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 485 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 486 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 487 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 488 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 489 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 490 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 491 }, 492 }, 493 { 494 .range = 33, 495 .lut20 = { 496 cpu_to_le32(0x00000008), cpu_to_le32(0x00000000), 497 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 498 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 499 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 500 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 501 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 502 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 503 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 504 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 505 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 506 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 507 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 508 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 509 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 510 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 511 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 512 }, 513 }, 514}; 515 516static enum iwl_bt_coex_lut_type 517iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif) 518{ 519 struct ieee80211_chanctx_conf *chanctx_conf; 520 enum iwl_bt_coex_lut_type ret; 521 u16 phy_ctx_id; 522 523 /* 524 * Checking that we hold mvm->mutex is a good idea, but the rate 525 * control can't acquire the mutex since it runs in Tx path. 526 * So this is racy in that case, but in the worst case, the AMPDU 527 * size limit will be wrong for a short time which is not a big 528 * issue. 529 */ 530 531 rcu_read_lock(); 532 533 chanctx_conf = rcu_dereference(vif->chanctx_conf); 534 535 if (!chanctx_conf || 536 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) { 537 rcu_read_unlock(); 538 return BT_COEX_LOOSE_LUT; 539 } 540 541 ret = BT_COEX_TX_DIS_LUT; 542 543 if (mvm->cfg->bt_shared_single_ant) { 544 rcu_read_unlock(); 545 return ret; 546 } 547 548 phy_ctx_id = *((u16 *)chanctx_conf->drv_priv); 549 550 if (mvm->last_bt_ci_cmd.primary_ch_phy_id == phy_ctx_id) 551 ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut); 552 else if (mvm->last_bt_ci_cmd.secondary_ch_phy_id == phy_ctx_id) 553 ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut); 554 /* else - default = TX TX disallowed */ 555 556 rcu_read_unlock(); 557 558 return ret; 559} 560 561int iwl_send_bt_init_conf(struct iwl_mvm *mvm) 562{ 563 struct iwl_bt_coex_cmd *bt_cmd; 564 struct iwl_host_cmd cmd = { 565 .id = BT_CONFIG, 566 .len = { sizeof(*bt_cmd), }, 567 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 568 .flags = CMD_SYNC, 569 }; 570 int ret; 571 u32 flags; 572 573 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); 574 if (!bt_cmd) 575 return -ENOMEM; 576 cmd.data[0] = bt_cmd; 577 578 bt_cmd->max_kill = 5; 579 bt_cmd->bt4_antenna_isolation_thr = BT_ANTENNA_COUPLING_THRESHOLD; 580 bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling; 581 bt_cmd->bt4_tx_tx_delta_freq_thr = 15; 582 bt_cmd->bt4_tx_rx_max_freq0 = 15; 583 bt_cmd->override_primary_lut = BT_COEX_INVALID_LUT; 584 bt_cmd->override_secondary_lut = BT_COEX_INVALID_LUT; 585 586 flags = iwlwifi_mod_params.bt_coex_active ? 587 BT_COEX_NW : BT_COEX_DISABLE; 588 bt_cmd->flags = cpu_to_le32(flags); 589 590 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE | 591 BT_VALID_BT_PRIO_BOOST | 592 BT_VALID_MAX_KILL | 593 BT_VALID_3W_TMRS | 594 BT_VALID_KILL_ACK | 595 BT_VALID_KILL_CTS | 596 BT_VALID_REDUCED_TX_POWER | 597 BT_VALID_LUT | 598 BT_VALID_WIFI_RX_SW_PRIO_BOOST | 599 BT_VALID_WIFI_TX_SW_PRIO_BOOST | 600 BT_VALID_ANT_ISOLATION | 601 BT_VALID_ANT_ISOLATION_THRS | 602 BT_VALID_TXTX_DELTA_FREQ_THRS | 603 BT_VALID_TXRX_MAX_FREQ_0 | 604 BT_VALID_SYNC_TO_SCO); 605 606 if (IWL_MVM_BT_COEX_SYNC2SCO) 607 bt_cmd->flags |= cpu_to_le32(BT_COEX_SYNC2SCO); 608 609 if (IWL_MVM_BT_COEX_CORUNNING) { 610 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_CORUN_LUT_20 | 611 BT_VALID_CORUN_LUT_40); 612 bt_cmd->flags |= cpu_to_le32(BT_COEX_CORUNNING); 613 } 614 615 if (IWL_MVM_BT_COEX_MPLUT) { 616 bt_cmd->flags |= cpu_to_le32(BT_COEX_MPLUT); 617 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_MULTI_PRIO_LUT); 618 } 619 620 if (mvm->cfg->bt_shared_single_ant) 621 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant, 622 sizeof(iwl_single_shared_ant)); 623 else 624 memcpy(&bt_cmd->decision_lut, iwl_combined_lookup, 625 sizeof(iwl_combined_lookup)); 626 627 /* Take first Co-running block LUT to get started */ 628 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[0].lut20, 629 sizeof(bt_cmd->bt4_corun_lut20)); 630 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[0].lut20, 631 sizeof(bt_cmd->bt4_corun_lut40)); 632 633 memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost, 634 sizeof(iwl_bt_prio_boost)); 635 memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut, 636 sizeof(iwl_bt_mprio_lut)); 637 bt_cmd->kill_ack_msk = 638 cpu_to_le32(iwl_bt_ack_kill_msk[BT_KILL_MSK_DEFAULT]); 639 bt_cmd->kill_cts_msk = 640 cpu_to_le32(iwl_bt_cts_kill_msk[BT_KILL_MSK_DEFAULT]); 641 642 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 643 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 644 645 ret = iwl_mvm_send_cmd(mvm, &cmd); 646 647 kfree(bt_cmd); 648 return ret; 649} 650 651static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm, 652 bool reduced_tx_power) 653{ 654 enum iwl_bt_kill_msk bt_kill_msk; 655 struct iwl_bt_coex_cmd *bt_cmd; 656 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif; 657 struct iwl_host_cmd cmd = { 658 .id = BT_CONFIG, 659 .data[0] = &bt_cmd, 660 .len = { sizeof(*bt_cmd), }, 661 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 662 .flags = CMD_SYNC, 663 }; 664 int ret = 0; 665 666 lockdep_assert_held(&mvm->mutex); 667 668 if (reduced_tx_power) { 669 /* Reduced Tx power has precedence on the type of the profile */ 670 bt_kill_msk = BT_KILL_MSK_REDUCED_TXPOW; 671 } else { 672 /* Low latency BT profile is active: give higher prio to BT */ 673 if (BT_MBOX_MSG(notif, 3, SCO_STATE) || 674 BT_MBOX_MSG(notif, 3, A2DP_STATE) || 675 BT_MBOX_MSG(notif, 3, SNIFF_STATE)) 676 bt_kill_msk = BT_KILL_MSK_SCO_HID_A2DP; 677 else 678 bt_kill_msk = BT_KILL_MSK_DEFAULT; 679 } 680 681 IWL_DEBUG_COEX(mvm, 682 "Update kill_msk: %d - SCO %sactive A2DP %sactive SNIFF %sactive\n", 683 bt_kill_msk, 684 BT_MBOX_MSG(notif, 3, SCO_STATE) ? "" : "in", 685 BT_MBOX_MSG(notif, 3, A2DP_STATE) ? "" : "in", 686 BT_MBOX_MSG(notif, 3, SNIFF_STATE) ? "" : "in"); 687 688 /* Don't send HCMD if there is no update */ 689 if (bt_kill_msk == mvm->bt_kill_msk) 690 return 0; 691 692 mvm->bt_kill_msk = bt_kill_msk; 693 694 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); 695 if (!bt_cmd) 696 return -ENOMEM; 697 cmd.data[0] = bt_cmd; 698 bt_cmd->flags = cpu_to_le32(BT_COEX_NW); 699 700 bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ack_kill_msk[bt_kill_msk]); 701 bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_cts_kill_msk[bt_kill_msk]); 702 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE | 703 BT_VALID_KILL_ACK | 704 BT_VALID_KILL_CTS); 705 706 IWL_DEBUG_COEX(mvm, "ACK Kill msk = 0x%08x, CTS Kill msk = 0x%08x\n", 707 iwl_bt_ack_kill_msk[bt_kill_msk], 708 iwl_bt_cts_kill_msk[bt_kill_msk]); 709 710 ret = iwl_mvm_send_cmd(mvm, &cmd); 711 712 kfree(bt_cmd); 713 return ret; 714} 715 716int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id, bool enable) 717{ 718 struct iwl_bt_coex_cmd *bt_cmd; 719 /* Send ASYNC since this can be sent from an atomic context */ 720 struct iwl_host_cmd cmd = { 721 .id = BT_CONFIG, 722 .len = { sizeof(*bt_cmd), }, 723 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 724 .flags = CMD_ASYNC, 725 }; 726 struct iwl_mvm_sta *mvmsta; 727 int ret; 728 729 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 730 if (!mvmsta) 731 return 0; 732 733 /* nothing to do */ 734 if (mvmsta->bt_reduced_txpower_dbg || 735 mvmsta->bt_reduced_txpower == enable) 736 return 0; 737 738 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC); 739 if (!bt_cmd) 740 return -ENOMEM; 741 cmd.data[0] = bt_cmd; 742 bt_cmd->flags = cpu_to_le32(BT_COEX_NW); 743 744 bt_cmd->valid_bit_msk = 745 cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER); 746 bt_cmd->bt_reduced_tx_power = sta_id; 747 748 if (enable) 749 bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT; 750 751 IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n", 752 enable ? "en" : "dis", sta_id); 753 754 mvmsta->bt_reduced_txpower = enable; 755 756 ret = iwl_mvm_send_cmd(mvm, &cmd); 757 758 kfree(bt_cmd); 759 return ret; 760} 761 762struct iwl_bt_iterator_data { 763 struct iwl_bt_coex_profile_notif *notif; 764 struct iwl_mvm *mvm; 765 u32 num_bss_ifaces; 766 bool reduced_tx_power; 767 struct ieee80211_chanctx_conf *primary; 768 struct ieee80211_chanctx_conf *secondary; 769 bool primary_ll; 770}; 771 772static inline 773void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm, 774 struct ieee80211_vif *vif, 775 bool enable, int rssi) 776{ 777 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 778 779 mvmvif->bf_data.last_bt_coex_event = rssi; 780 mvmvif->bf_data.bt_coex_max_thold = 781 enable ? BT_ENABLE_REDUCED_TXPOWER_THRESHOLD : 0; 782 mvmvif->bf_data.bt_coex_min_thold = 783 enable ? BT_DISABLE_REDUCED_TXPOWER_THRESHOLD : 0; 784} 785 786/* must be called under rcu_read_lock */ 787static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac, 788 struct ieee80211_vif *vif) 789{ 790 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 791 struct iwl_bt_iterator_data *data = _data; 792 struct iwl_mvm *mvm = data->mvm; 793 struct ieee80211_chanctx_conf *chanctx_conf; 794 enum ieee80211_smps_mode smps_mode; 795 u32 bt_activity_grading; 796 int ave_rssi; 797 798 lockdep_assert_held(&mvm->mutex); 799 800 switch (vif->type) { 801 case NL80211_IFTYPE_STATION: 802 /* default smps_mode for BSS / P2P client is AUTOMATIC */ 803 smps_mode = IEEE80211_SMPS_AUTOMATIC; 804 data->num_bss_ifaces++; 805 806 /* 807 * Count unassoc BSSes, relax SMSP constraints 808 * and disable reduced Tx Power 809 */ 810 if (!vif->bss_conf.assoc) { 811 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 812 smps_mode); 813 if (iwl_mvm_bt_coex_reduced_txp(mvm, 814 mvmvif->ap_sta_id, 815 false)) 816 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 817 return; 818 } 819 break; 820 case NL80211_IFTYPE_AP: 821 /* default smps_mode for AP / GO is OFF */ 822 smps_mode = IEEE80211_SMPS_OFF; 823 if (!mvmvif->ap_ibss_active) { 824 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 825 smps_mode); 826 return; 827 } 828 829 /* the Ack / Cts kill mask must be default if AP / GO */ 830 data->reduced_tx_power = false; 831 break; 832 default: 833 return; 834 } 835 836 chanctx_conf = rcu_dereference(vif->chanctx_conf); 837 838 /* If channel context is invalid or not on 2.4GHz .. */ 839 if ((!chanctx_conf || 840 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) { 841 /* ... relax constraints and disable rssi events */ 842 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 843 smps_mode); 844 if (vif->type == NL80211_IFTYPE_STATION) 845 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 846 return; 847 } 848 849 bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading); 850 if (bt_activity_grading >= BT_HIGH_TRAFFIC) 851 smps_mode = IEEE80211_SMPS_STATIC; 852 else if (bt_activity_grading >= BT_LOW_TRAFFIC) 853 smps_mode = vif->type == NL80211_IFTYPE_AP ? 854 IEEE80211_SMPS_OFF : 855 IEEE80211_SMPS_DYNAMIC; 856 IWL_DEBUG_COEX(data->mvm, 857 "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n", 858 mvmvif->id, data->notif->bt_status, bt_activity_grading, 859 smps_mode); 860 861 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, smps_mode); 862 863 /* low latency is always primary */ 864 if (iwl_mvm_vif_low_latency(mvmvif)) { 865 data->primary_ll = true; 866 867 data->secondary = data->primary; 868 data->primary = chanctx_conf; 869 } 870 871 if (vif->type == NL80211_IFTYPE_AP) { 872 if (!mvmvif->ap_ibss_active) 873 return; 874 875 if (chanctx_conf == data->primary) 876 return; 877 878 if (!data->primary_ll) { 879 /* 880 * downgrade the current primary no matter what its 881 * type is. 882 */ 883 data->secondary = data->primary; 884 data->primary = chanctx_conf; 885 } else { 886 /* there is low latency vif - we will be secondary */ 887 data->secondary = chanctx_conf; 888 } 889 return; 890 } 891 892 /* 893 * STA / P2P Client, try to be primary if first vif. If we are in low 894 * latency mode, we are already in primary and just don't do much 895 */ 896 if (!data->primary || data->primary == chanctx_conf) 897 data->primary = chanctx_conf; 898 else if (!data->secondary) 899 /* if secondary is not NULL, it might be a GO */ 900 data->secondary = chanctx_conf; 901 902 /* don't reduce the Tx power if in loose scheme */ 903 if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT || 904 mvm->cfg->bt_shared_single_ant) { 905 data->reduced_tx_power = false; 906 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 907 return; 908 } 909 910 /* reduced Txpower only if BT is on, so ...*/ 911 if (!data->notif->bt_status) { 912 /* ... cancel reduced Tx power ... */ 913 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) 914 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 915 data->reduced_tx_power = false; 916 917 /* ... and there is no need to get reports on RSSI any more. */ 918 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 919 return; 920 } 921 922 /* try to get the avg rssi from fw */ 923 ave_rssi = mvmvif->bf_data.ave_beacon_signal; 924 925 /* if the RSSI isn't valid, fake it is very low */ 926 if (!ave_rssi) 927 ave_rssi = -100; 928 if (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) { 929 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true)) 930 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 931 932 /* 933 * bt_kill_msk can be BT_KILL_MSK_REDUCED_TXPOW only if all the 934 * BSS / P2P clients have rssi above threshold. 935 * We set the bt_kill_msk to BT_KILL_MSK_REDUCED_TXPOW before 936 * the iteration, if one interface's rssi isn't good enough, 937 * bt_kill_msk will be set to default values. 938 */ 939 } else if (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) { 940 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) 941 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 942 943 /* 944 * One interface hasn't rssi above threshold, bt_kill_msk must 945 * be set to default values. 946 */ 947 data->reduced_tx_power = false; 948 } 949 950 /* Begin to monitor the RSSI: it may influence the reduced Tx power */ 951 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi); 952} 953 954static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm) 955{ 956 struct iwl_bt_iterator_data data = { 957 .mvm = mvm, 958 .notif = &mvm->last_bt_notif, 959 .reduced_tx_power = true, 960 }; 961 struct iwl_bt_coex_ci_cmd cmd = {}; 962 u8 ci_bw_idx; 963 964 rcu_read_lock(); 965 ieee80211_iterate_active_interfaces_atomic( 966 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 967 iwl_mvm_bt_notif_iterator, &data); 968 969 if (data.primary) { 970 struct ieee80211_chanctx_conf *chan = data.primary; 971 if (WARN_ON(!chan->def.chan)) { 972 rcu_read_unlock(); 973 return; 974 } 975 976 if (chan->def.width < NL80211_CHAN_WIDTH_40) { 977 ci_bw_idx = 0; 978 cmd.co_run_bw_primary = 0; 979 } else { 980 cmd.co_run_bw_primary = 1; 981 if (chan->def.center_freq1 > 982 chan->def.chan->center_freq) 983 ci_bw_idx = 2; 984 else 985 ci_bw_idx = 1; 986 } 987 988 cmd.bt_primary_ci = 989 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; 990 cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv); 991 } 992 993 if (data.secondary) { 994 struct ieee80211_chanctx_conf *chan = data.secondary; 995 if (WARN_ON(!data.secondary->def.chan)) { 996 rcu_read_unlock(); 997 return; 998 } 999 1000 if (chan->def.width < NL80211_CHAN_WIDTH_40) { 1001 ci_bw_idx = 0; 1002 cmd.co_run_bw_secondary = 0; 1003 } else { 1004 cmd.co_run_bw_secondary = 1; 1005 if (chan->def.center_freq1 > 1006 chan->def.chan->center_freq) 1007 ci_bw_idx = 2; 1008 else 1009 ci_bw_idx = 1; 1010 } 1011 1012 cmd.bt_secondary_ci = 1013 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; 1014 cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv); 1015 } 1016 1017 rcu_read_unlock(); 1018 1019 /* Don't spam the fw with the same command over and over */ 1020 if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) { 1021 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, CMD_SYNC, 1022 sizeof(cmd), &cmd)) 1023 IWL_ERR(mvm, "Failed to send BT_CI cmd"); 1024 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd)); 1025 } 1026 1027 /* 1028 * If there are no BSS / P2P client interfaces, reduced Tx Power is 1029 * irrelevant since it is based on the RSSI coming from the beacon. 1030 * Use BT_KILL_MSK_DEFAULT in that case. 1031 */ 1032 data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; 1033 1034 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) 1035 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); 1036} 1037 1038/* upon association, the fw will send in BT Coex notification */ 1039int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm, 1040 struct iwl_rx_cmd_buffer *rxb, 1041 struct iwl_device_cmd *dev_cmd) 1042{ 1043 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1044 struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data; 1045 1046 1047 IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n"); 1048 IWL_DEBUG_COEX(mvm, "\tBT status: %s\n", 1049 notif->bt_status ? "ON" : "OFF"); 1050 IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn); 1051 IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance); 1052 IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n", 1053 le32_to_cpu(notif->primary_ch_lut)); 1054 IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n", 1055 le32_to_cpu(notif->secondary_ch_lut)); 1056 IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n", 1057 le32_to_cpu(notif->bt_activity_grading)); 1058 IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n", 1059 notif->bt_agg_traffic_load); 1060 1061 /* remember this notification for future use: rssi fluctuations */ 1062 memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif)); 1063 1064 iwl_mvm_bt_coex_notif_handle(mvm); 1065 1066 /* 1067 * This is an async handler for a notification, returning anything other 1068 * than 0 doesn't make sense even if HCMD failed. 1069 */ 1070 return 0; 1071} 1072 1073static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac, 1074 struct ieee80211_vif *vif) 1075{ 1076 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; 1077 struct iwl_bt_iterator_data *data = _data; 1078 struct iwl_mvm *mvm = data->mvm; 1079 1080 struct ieee80211_sta *sta; 1081 struct iwl_mvm_sta *mvmsta; 1082 1083 struct ieee80211_chanctx_conf *chanctx_conf; 1084 1085 rcu_read_lock(); 1086 chanctx_conf = rcu_dereference(vif->chanctx_conf); 1087 /* If channel context is invalid or not on 2.4GHz - don't count it */ 1088 if (!chanctx_conf || 1089 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) { 1090 rcu_read_unlock(); 1091 return; 1092 } 1093 rcu_read_unlock(); 1094 1095 if (vif->type != NL80211_IFTYPE_STATION || 1096 mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) 1097 return; 1098 1099 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], 1100 lockdep_is_held(&mvm->mutex)); 1101 1102 /* This can happen if the station has been removed right now */ 1103 if (IS_ERR_OR_NULL(sta)) 1104 return; 1105 1106 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1107 1108 data->num_bss_ifaces++; 1109 1110 /* 1111 * This interface doesn't support reduced Tx power (because of low 1112 * RSSI probably), then set bt_kill_msk to default values. 1113 */ 1114 if (!mvmsta->bt_reduced_txpower) 1115 data->reduced_tx_power = false; 1116 /* else - possibly leave it to BT_KILL_MSK_REDUCED_TXPOW */ 1117} 1118 1119void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1120 enum ieee80211_rssi_event rssi_event) 1121{ 1122 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; 1123 struct iwl_bt_iterator_data data = { 1124 .mvm = mvm, 1125 .reduced_tx_power = true, 1126 }; 1127 int ret; 1128 1129 lockdep_assert_held(&mvm->mutex); 1130 1131 /* 1132 * Rssi update while not associated - can happen since the statistics 1133 * are handled asynchronously 1134 */ 1135 if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) 1136 return; 1137 1138 /* No BT - reports should be disabled */ 1139 if (!mvm->last_bt_notif.bt_status) 1140 return; 1141 1142 IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid, 1143 rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW"); 1144 1145 /* 1146 * Check if rssi is good enough for reduced Tx power, but not in loose 1147 * scheme. 1148 */ 1149 if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant || 1150 iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT) 1151 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, 1152 false); 1153 else 1154 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true); 1155 1156 if (ret) 1157 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n"); 1158 1159 ieee80211_iterate_active_interfaces_atomic( 1160 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1161 iwl_mvm_bt_rssi_iterator, &data); 1162 1163 /* 1164 * If there are no BSS / P2P client interfaces, reduced Tx Power is 1165 * irrelevant since it is based on the RSSI coming from the beacon. 1166 * Use BT_KILL_MSK_DEFAULT in that case. 1167 */ 1168 data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; 1169 1170 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) 1171 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); 1172} 1173 1174#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) 1175#define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200) 1176 1177u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm, 1178 struct ieee80211_sta *sta) 1179{ 1180 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1181 enum iwl_bt_coex_lut_type lut_type; 1182 1183 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < 1184 BT_HIGH_TRAFFIC) 1185 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 1186 1187 lut_type = iwl_get_coex_type(mvm, mvmsta->vif); 1188 1189 if (lut_type == BT_COEX_LOOSE_LUT) 1190 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 1191 1192 /* tight coex, high bt traffic, reduce AGG time limit */ 1193 return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT; 1194} 1195 1196bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm, 1197 struct ieee80211_sta *sta) 1198{ 1199 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1200 1201 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < 1202 BT_HIGH_TRAFFIC) 1203 return true; 1204 1205 /* 1206 * In Tight, BT can't Rx while we Tx, so use both antennas since BT is 1207 * already killed. 1208 * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while we 1209 * Tx. 1210 */ 1211 return iwl_get_coex_type(mvm, mvmsta->vif) == BT_COEX_TIGHT_LUT; 1212} 1213 1214bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm, 1215 enum ieee80211_band band) 1216{ 1217 u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading); 1218 1219 if (band != IEEE80211_BAND_2GHZ) 1220 return false; 1221 1222 return bt_activity >= BT_LOW_TRAFFIC; 1223} 1224 1225u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr, 1226 struct ieee80211_tx_info *info, u8 ac) 1227{ 1228 __le16 fc = hdr->frame_control; 1229 1230 if (info->band != IEEE80211_BAND_2GHZ) 1231 return 0; 1232 1233 if (unlikely(mvm->bt_tx_prio)) 1234 return mvm->bt_tx_prio - 1; 1235 1236 /* High prio packet (wrt. BT coex) if it is EAPOL, MCAST or MGMT */ 1237 if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO || 1238 is_multicast_ether_addr(hdr->addr1) || 1239 ieee80211_is_ctl(fc) || ieee80211_is_mgmt(fc) || 1240 ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc)) 1241 return 3; 1242 1243 switch (ac) { 1244 case IEEE80211_AC_BE: 1245 return 1; 1246 case IEEE80211_AC_VO: 1247 return 3; 1248 case IEEE80211_AC_VI: 1249 return 2; 1250 default: 1251 break; 1252 } 1253 1254 return 0; 1255} 1256 1257void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm) 1258{ 1259 iwl_mvm_bt_coex_notif_handle(mvm); 1260} 1261 1262int iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm, 1263 struct iwl_rx_cmd_buffer *rxb, 1264 struct iwl_device_cmd *dev_cmd) 1265{ 1266 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1267 u32 ant_isolation = le32_to_cpup((void *)pkt->data); 1268 u8 __maybe_unused lower_bound, upper_bound; 1269 u8 lut; 1270 1271 struct iwl_bt_coex_cmd *bt_cmd; 1272 struct iwl_host_cmd cmd = { 1273 .id = BT_CONFIG, 1274 .len = { sizeof(*bt_cmd), }, 1275 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 1276 .flags = CMD_SYNC, 1277 }; 1278 1279 if (!IWL_MVM_BT_COEX_CORUNNING) 1280 return 0; 1281 1282 lockdep_assert_held(&mvm->mutex); 1283 1284 if (ant_isolation == mvm->last_ant_isol) 1285 return 0; 1286 1287 for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++) 1288 if (ant_isolation < antenna_coupling_ranges[lut + 1].range) 1289 break; 1290 1291 lower_bound = antenna_coupling_ranges[lut].range; 1292 1293 if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1) 1294 upper_bound = antenna_coupling_ranges[lut + 1].range; 1295 else 1296 upper_bound = antenna_coupling_ranges[lut].range; 1297 1298 IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n", 1299 ant_isolation, lower_bound, upper_bound, lut); 1300 1301 mvm->last_ant_isol = ant_isolation; 1302 1303 if (mvm->last_corun_lut == lut) 1304 return 0; 1305 1306 mvm->last_corun_lut = lut; 1307 1308 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); 1309 if (!bt_cmd) 1310 return 0; 1311 cmd.data[0] = bt_cmd; 1312 1313 bt_cmd->flags = cpu_to_le32(BT_COEX_NW); 1314 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE | 1315 BT_VALID_CORUN_LUT_20 | 1316 BT_VALID_CORUN_LUT_40); 1317 1318 /* For the moment, use the same LUT for 20GHz and 40GHz */ 1319 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[lut].lut20, 1320 sizeof(bt_cmd->bt4_corun_lut20)); 1321 1322 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[lut].lut20, 1323 sizeof(bt_cmd->bt4_corun_lut40)); 1324 1325 return 0; 1326} 1327