coex.c revision b797e3fbab399ed023bdaeaf7fb63236f67eaa1c
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 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX)) 110 return 0; 111 112 return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, CMD_SYNC, 113 sizeof(struct iwl_bt_coex_prio_tbl_cmd), 114 &iwl_bt_prio_tbl); 115} 116 117const u32 iwl_bt_ack_kill_msk[BT_KILL_MSK_MAX] = { 118 [BT_KILL_MSK_DEFAULT] = 0xffff0000, 119 [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff, 120 [BT_KILL_MSK_REDUCED_TXPOW] = 0, 121}; 122 123const u32 iwl_bt_cts_kill_msk[BT_KILL_MSK_MAX] = { 124 [BT_KILL_MSK_DEFAULT] = 0xffff0000, 125 [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff, 126 [BT_KILL_MSK_REDUCED_TXPOW] = 0, 127}; 128 129static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = { 130 cpu_to_le32(0xf0f0f0f0), 131 cpu_to_le32(0xc0c0c0c0), 132 cpu_to_le32(0xfcfcfcfc), 133 cpu_to_le32(0xff00ff00), 134}; 135 136static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = { 137 { 138 cpu_to_le32(0x40000000), 139 cpu_to_le32(0x00000000), 140 cpu_to_le32(0x44000000), 141 cpu_to_le32(0x00000000), 142 cpu_to_le32(0x40000000), 143 cpu_to_le32(0x00000000), 144 cpu_to_le32(0x44000000), 145 cpu_to_le32(0x00000000), 146 cpu_to_le32(0xc0004000), 147 cpu_to_le32(0xf0005000), 148 cpu_to_le32(0xc0004000), 149 cpu_to_le32(0xf0005000), 150 }, 151 { 152 cpu_to_le32(0x40000000), 153 cpu_to_le32(0x00000000), 154 cpu_to_le32(0x44000000), 155 cpu_to_le32(0x00000000), 156 cpu_to_le32(0x40000000), 157 cpu_to_le32(0x00000000), 158 cpu_to_le32(0x44000000), 159 cpu_to_le32(0x00000000), 160 cpu_to_le32(0xc0004000), 161 cpu_to_le32(0xf0005000), 162 cpu_to_le32(0xc0004000), 163 cpu_to_le32(0xf0005000), 164 }, 165 { 166 cpu_to_le32(0x40000000), 167 cpu_to_le32(0x00000000), 168 cpu_to_le32(0x44000000), 169 cpu_to_le32(0x00000000), 170 cpu_to_le32(0x40000000), 171 cpu_to_le32(0x00000000), 172 cpu_to_le32(0x44000000), 173 cpu_to_le32(0x00000000), 174 cpu_to_le32(0xc0004000), 175 cpu_to_le32(0xf0005000), 176 cpu_to_le32(0xc0004000), 177 cpu_to_le32(0xf0005000), 178 }, 179}; 180 181static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = { 182 { 183 /* Tight */ 184 cpu_to_le32(0xaaaaaaaa), 185 cpu_to_le32(0xaaaaaaaa), 186 cpu_to_le32(0xaeaaaaaa), 187 cpu_to_le32(0xaaaaaaaa), 188 cpu_to_le32(0xcc00ff28), 189 cpu_to_le32(0x0000aaaa), 190 cpu_to_le32(0xcc00aaaa), 191 cpu_to_le32(0x0000aaaa), 192 cpu_to_le32(0xc0004000), 193 cpu_to_le32(0x00000000), 194 cpu_to_le32(0xf0005000), 195 cpu_to_le32(0xf0005000), 196 }, 197 { 198 /* Loose */ 199 cpu_to_le32(0xaaaaaaaa), 200 cpu_to_le32(0xaaaaaaaa), 201 cpu_to_le32(0xaaaaaaaa), 202 cpu_to_le32(0xaaaaaaaa), 203 cpu_to_le32(0xcc00ff28), 204 cpu_to_le32(0x0000aaaa), 205 cpu_to_le32(0xcc00aaaa), 206 cpu_to_le32(0x0000aaaa), 207 cpu_to_le32(0x00000000), 208 cpu_to_le32(0x00000000), 209 cpu_to_le32(0xf0005000), 210 cpu_to_le32(0xf0005000), 211 }, 212 { 213 /* Tx Tx disabled */ 214 cpu_to_le32(0xaaaaaaaa), 215 cpu_to_le32(0xaaaaaaaa), 216 cpu_to_le32(0xaaaaaaaa), 217 cpu_to_le32(0xaaaaaaaa), 218 cpu_to_le32(0xcc00ff28), 219 cpu_to_le32(0x0000aaaa), 220 cpu_to_le32(0xcc00aaaa), 221 cpu_to_le32(0x0000aaaa), 222 cpu_to_le32(0xC0004000), 223 cpu_to_le32(0xC0004000), 224 cpu_to_le32(0xF0005000), 225 cpu_to_le32(0xF0005000), 226 }, 227}; 228 229/* 20MHz / 40MHz below / 40Mhz above*/ 230static const __le64 iwl_ci_mask[][3] = { 231 /* dummy entry for channel 0 */ 232 {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)}, 233 { 234 cpu_to_le64(0x0000001FFFULL), 235 cpu_to_le64(0x0ULL), 236 cpu_to_le64(0x00007FFFFFULL), 237 }, 238 { 239 cpu_to_le64(0x000000FFFFULL), 240 cpu_to_le64(0x0ULL), 241 cpu_to_le64(0x0003FFFFFFULL), 242 }, 243 { 244 cpu_to_le64(0x000003FFFCULL), 245 cpu_to_le64(0x0ULL), 246 cpu_to_le64(0x000FFFFFFCULL), 247 }, 248 { 249 cpu_to_le64(0x00001FFFE0ULL), 250 cpu_to_le64(0x0ULL), 251 cpu_to_le64(0x007FFFFFE0ULL), 252 }, 253 { 254 cpu_to_le64(0x00007FFF80ULL), 255 cpu_to_le64(0x00007FFFFFULL), 256 cpu_to_le64(0x01FFFFFF80ULL), 257 }, 258 { 259 cpu_to_le64(0x0003FFFC00ULL), 260 cpu_to_le64(0x0003FFFFFFULL), 261 cpu_to_le64(0x0FFFFFFC00ULL), 262 }, 263 { 264 cpu_to_le64(0x000FFFF000ULL), 265 cpu_to_le64(0x000FFFFFFCULL), 266 cpu_to_le64(0x3FFFFFF000ULL), 267 }, 268 { 269 cpu_to_le64(0x007FFF8000ULL), 270 cpu_to_le64(0x007FFFFFE0ULL), 271 cpu_to_le64(0xFFFFFF8000ULL), 272 }, 273 { 274 cpu_to_le64(0x01FFFE0000ULL), 275 cpu_to_le64(0x01FFFFFF80ULL), 276 cpu_to_le64(0xFFFFFE0000ULL), 277 }, 278 { 279 cpu_to_le64(0x0FFFF00000ULL), 280 cpu_to_le64(0x0FFFFFFC00ULL), 281 cpu_to_le64(0x0ULL), 282 }, 283 { 284 cpu_to_le64(0x3FFFC00000ULL), 285 cpu_to_le64(0x3FFFFFF000ULL), 286 cpu_to_le64(0x0) 287 }, 288 { 289 cpu_to_le64(0xFFFE000000ULL), 290 cpu_to_le64(0xFFFFFF8000ULL), 291 cpu_to_le64(0x0) 292 }, 293 { 294 cpu_to_le64(0xFFF8000000ULL), 295 cpu_to_le64(0xFFFFFE0000ULL), 296 cpu_to_le64(0x0) 297 }, 298 { 299 cpu_to_le64(0xFFC0000000ULL), 300 cpu_to_le64(0x0ULL), 301 cpu_to_le64(0x0ULL) 302 }, 303}; 304 305static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = { 306 cpu_to_le32(0x22002200), 307 cpu_to_le32(0x33113311), 308}; 309 310struct corunning_block_luts { 311 u8 range; 312 __le32 lut20[BT_COEX_CORUN_LUT_SIZE]; 313}; 314 315/* 316 * Ranges for the antenna coupling calibration / co-running block LUT: 317 * LUT0: [ 0, 12[ 318 * LUT1: [12, 20[ 319 * LUT2: [20, 21[ 320 * LUT3: [21, 23[ 321 * LUT4: [23, 27[ 322 * LUT5: [27, 30[ 323 * LUT6: [30, 32[ 324 * LUT7: [32, 33[ 325 * LUT8: [33, - [ 326 */ 327static const struct corunning_block_luts antenna_coupling_ranges[] = { 328 { 329 .range = 0, 330 .lut20 = { 331 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 332 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 333 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 334 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 335 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 336 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 337 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 338 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 339 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 340 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 341 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 342 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 343 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 344 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 345 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 346 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 347 }, 348 }, 349 { 350 .range = 12, 351 .lut20 = { 352 cpu_to_le32(0x00000001), cpu_to_le32(0x00000000), 353 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 354 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 355 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 356 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 357 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 358 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 359 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 360 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 361 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 362 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 363 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 364 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 365 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 366 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 367 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 368 }, 369 }, 370 { 371 .range = 20, 372 .lut20 = { 373 cpu_to_le32(0x00000002), cpu_to_le32(0x00000000), 374 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 375 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 376 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 377 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 378 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 379 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 380 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 381 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 382 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 383 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 384 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 385 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 386 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 387 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 388 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 389 }, 390 }, 391 { 392 .range = 21, 393 .lut20 = { 394 cpu_to_le32(0x00000003), cpu_to_le32(0x00000000), 395 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 396 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 397 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 398 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 399 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 400 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 401 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 402 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 403 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 404 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 405 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 406 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 407 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 408 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 409 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 410 }, 411 }, 412 { 413 .range = 23, 414 .lut20 = { 415 cpu_to_le32(0x00000004), cpu_to_le32(0x00000000), 416 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 417 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 418 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 419 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 420 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 421 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 422 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 423 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 424 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 425 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 426 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 427 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 428 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 429 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 430 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 431 }, 432 }, 433 { 434 .range = 27, 435 .lut20 = { 436 cpu_to_le32(0x00000005), cpu_to_le32(0x00000000), 437 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 438 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 439 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 440 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 441 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 442 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 443 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 444 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 445 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 446 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 447 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 448 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 449 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 450 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 451 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 452 }, 453 }, 454 { 455 .range = 30, 456 .lut20 = { 457 cpu_to_le32(0x00000006), cpu_to_le32(0x00000000), 458 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 459 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 460 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 461 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 462 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 463 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 464 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 465 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 466 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 467 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 468 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 469 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 470 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 471 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 472 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 473 }, 474 }, 475 { 476 .range = 32, 477 .lut20 = { 478 cpu_to_le32(0x00000007), cpu_to_le32(0x00000000), 479 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 480 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 481 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 482 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 483 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 484 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 485 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 486 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 487 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 488 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 489 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 490 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 491 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 492 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 493 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 494 }, 495 }, 496 { 497 .range = 33, 498 .lut20 = { 499 cpu_to_le32(0x00000008), cpu_to_le32(0x00000000), 500 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 501 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 502 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 503 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 504 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 505 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 506 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 507 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 508 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 509 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 510 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 511 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 512 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 513 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 514 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 515 }, 516 }, 517}; 518 519static enum iwl_bt_coex_lut_type 520iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif) 521{ 522 struct ieee80211_chanctx_conf *chanctx_conf; 523 enum iwl_bt_coex_lut_type ret; 524 u16 phy_ctx_id; 525 526 /* 527 * Checking that we hold mvm->mutex is a good idea, but the rate 528 * control can't acquire the mutex since it runs in Tx path. 529 * So this is racy in that case, but in the worst case, the AMPDU 530 * size limit will be wrong for a short time which is not a big 531 * issue. 532 */ 533 534 rcu_read_lock(); 535 536 chanctx_conf = rcu_dereference(vif->chanctx_conf); 537 538 if (!chanctx_conf || 539 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) { 540 rcu_read_unlock(); 541 return BT_COEX_LOOSE_LUT; 542 } 543 544 ret = BT_COEX_TX_DIS_LUT; 545 546 if (mvm->cfg->bt_shared_single_ant) { 547 rcu_read_unlock(); 548 return ret; 549 } 550 551 phy_ctx_id = *((u16 *)chanctx_conf->drv_priv); 552 553 if (mvm->last_bt_ci_cmd.primary_ch_phy_id == phy_ctx_id) 554 ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut); 555 else if (mvm->last_bt_ci_cmd.secondary_ch_phy_id == phy_ctx_id) 556 ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut); 557 /* else - default = TX TX disallowed */ 558 559 rcu_read_unlock(); 560 561 return ret; 562} 563 564int iwl_send_bt_init_conf(struct iwl_mvm *mvm) 565{ 566 struct iwl_bt_coex_cmd *bt_cmd; 567 struct iwl_host_cmd cmd = { 568 .id = BT_CONFIG, 569 .len = { sizeof(*bt_cmd), }, 570 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 571 .flags = CMD_SYNC, 572 }; 573 int ret; 574 u32 flags; 575 576 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX)) 577 return 0; 578 579 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); 580 if (!bt_cmd) 581 return -ENOMEM; 582 cmd.data[0] = bt_cmd; 583 584 bt_cmd->max_kill = 5; 585 bt_cmd->bt4_antenna_isolation_thr = BT_ANTENNA_COUPLING_THRESHOLD, 586 bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling, 587 bt_cmd->bt4_tx_tx_delta_freq_thr = 15, 588 bt_cmd->bt4_tx_rx_max_freq0 = 15, 589 590 flags = iwlwifi_mod_params.bt_coex_active ? 591 BT_COEX_NW : BT_COEX_DISABLE; 592 bt_cmd->flags = cpu_to_le32(flags); 593 594 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE | 595 BT_VALID_BT_PRIO_BOOST | 596 BT_VALID_MAX_KILL | 597 BT_VALID_3W_TMRS | 598 BT_VALID_KILL_ACK | 599 BT_VALID_KILL_CTS | 600 BT_VALID_REDUCED_TX_POWER | 601 BT_VALID_LUT | 602 BT_VALID_WIFI_RX_SW_PRIO_BOOST | 603 BT_VALID_WIFI_TX_SW_PRIO_BOOST | 604 BT_VALID_ANT_ISOLATION | 605 BT_VALID_ANT_ISOLATION_THRS | 606 BT_VALID_TXTX_DELTA_FREQ_THRS | 607 BT_VALID_TXRX_MAX_FREQ_0 | 608 BT_VALID_SYNC_TO_SCO); 609 610 if (IWL_MVM_BT_COEX_SYNC2SCO) 611 bt_cmd->flags |= cpu_to_le32(BT_COEX_SYNC2SCO); 612 613 if (IWL_MVM_BT_COEX_CORUNNING) { 614 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_CORUN_LUT_20 | 615 BT_VALID_CORUN_LUT_40); 616 bt_cmd->flags |= cpu_to_le32(BT_COEX_CORUNNING); 617 } 618 619 if (mvm->cfg->bt_shared_single_ant) 620 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant, 621 sizeof(iwl_single_shared_ant)); 622 else 623 memcpy(&bt_cmd->decision_lut, iwl_combined_lookup, 624 sizeof(iwl_combined_lookup)); 625 626 /* Take first Co-running block LUT to get started */ 627 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[0].lut20, 628 sizeof(bt_cmd->bt4_corun_lut20)); 629 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[0].lut20, 630 sizeof(bt_cmd->bt4_corun_lut40)); 631 632 memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost, 633 sizeof(iwl_bt_prio_boost)); 634 memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut, 635 sizeof(iwl_bt_mprio_lut)); 636 bt_cmd->kill_ack_msk = 637 cpu_to_le32(iwl_bt_ack_kill_msk[BT_KILL_MSK_DEFAULT]); 638 bt_cmd->kill_cts_msk = 639 cpu_to_le32(iwl_bt_cts_kill_msk[BT_KILL_MSK_DEFAULT]); 640 641 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 642 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 643 644 ret = iwl_mvm_send_cmd(mvm, &cmd); 645 646 kfree(bt_cmd); 647 return ret; 648} 649 650static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm, 651 bool reduced_tx_power) 652{ 653 enum iwl_bt_kill_msk bt_kill_msk; 654 struct iwl_bt_coex_cmd *bt_cmd; 655 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif; 656 struct iwl_host_cmd cmd = { 657 .id = BT_CONFIG, 658 .data[0] = &bt_cmd, 659 .len = { sizeof(*bt_cmd), }, 660 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 661 .flags = CMD_SYNC, 662 }; 663 int ret = 0; 664 665 lockdep_assert_held(&mvm->mutex); 666 667 if (reduced_tx_power) { 668 /* Reduced Tx power has precedence on the type of the profile */ 669 bt_kill_msk = BT_KILL_MSK_REDUCED_TXPOW; 670 } else { 671 /* Low latency BT profile is active: give higher prio to BT */ 672 if (BT_MBOX_MSG(notif, 3, SCO_STATE) || 673 BT_MBOX_MSG(notif, 3, A2DP_STATE) || 674 BT_MBOX_MSG(notif, 3, SNIFF_STATE)) 675 bt_kill_msk = BT_KILL_MSK_SCO_HID_A2DP; 676 else 677 bt_kill_msk = BT_KILL_MSK_DEFAULT; 678 } 679 680 IWL_DEBUG_COEX(mvm, 681 "Update kill_msk: %d - SCO %sactive A2DP %sactive SNIFF %sactive\n", 682 bt_kill_msk, 683 BT_MBOX_MSG(notif, 3, SCO_STATE) ? "" : "in", 684 BT_MBOX_MSG(notif, 3, A2DP_STATE) ? "" : "in", 685 BT_MBOX_MSG(notif, 3, SNIFF_STATE) ? "" : "in"); 686 687 /* Don't send HCMD if there is no update */ 688 if (bt_kill_msk == mvm->bt_kill_msk) 689 return 0; 690 691 mvm->bt_kill_msk = bt_kill_msk; 692 693 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); 694 if (!bt_cmd) 695 return -ENOMEM; 696 cmd.data[0] = bt_cmd; 697 bt_cmd->flags = cpu_to_le32(BT_COEX_NW); 698 699 bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ack_kill_msk[bt_kill_msk]); 700 bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_cts_kill_msk[bt_kill_msk]); 701 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE | 702 BT_VALID_KILL_ACK | 703 BT_VALID_KILL_CTS); 704 705 IWL_DEBUG_COEX(mvm, "ACK Kill msk = 0x%08x, CTS Kill msk = 0x%08x\n", 706 iwl_bt_ack_kill_msk[bt_kill_msk], 707 iwl_bt_cts_kill_msk[bt_kill_msk]); 708 709 ret = iwl_mvm_send_cmd(mvm, &cmd); 710 711 kfree(bt_cmd); 712 return ret; 713} 714 715int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id, bool enable) 716{ 717 struct iwl_bt_coex_cmd *bt_cmd; 718 /* Send ASYNC since this can be sent from an atomic context */ 719 struct iwl_host_cmd cmd = { 720 .id = BT_CONFIG, 721 .len = { sizeof(*bt_cmd), }, 722 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 723 .flags = CMD_ASYNC, 724 }; 725 struct iwl_mvm_sta *mvmsta; 726 int ret; 727 728 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 729 if (!mvmsta) 730 return 0; 731 732 /* nothing to do */ 733 if (mvmsta->bt_reduced_txpower_dbg || 734 mvmsta->bt_reduced_txpower == enable) 735 return 0; 736 737 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC); 738 if (!bt_cmd) 739 return -ENOMEM; 740 cmd.data[0] = bt_cmd; 741 bt_cmd->flags = cpu_to_le32(BT_COEX_NW); 742 743 bt_cmd->valid_bit_msk = 744 cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER); 745 bt_cmd->bt_reduced_tx_power = sta_id; 746 747 if (enable) 748 bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT; 749 750 IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n", 751 enable ? "en" : "dis", sta_id); 752 753 mvmsta->bt_reduced_txpower = enable; 754 755 ret = iwl_mvm_send_cmd(mvm, &cmd); 756 757 kfree(bt_cmd); 758 return ret; 759} 760 761struct iwl_bt_iterator_data { 762 struct iwl_bt_coex_profile_notif *notif; 763 struct iwl_mvm *mvm; 764 u32 num_bss_ifaces; 765 bool reduced_tx_power; 766 struct ieee80211_chanctx_conf *primary; 767 struct ieee80211_chanctx_conf *secondary; 768 bool primary_ll; 769}; 770 771static inline 772void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm, 773 struct ieee80211_vif *vif, 774 bool enable, int rssi) 775{ 776 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 777 778 mvmvif->bf_data.last_bt_coex_event = rssi; 779 mvmvif->bf_data.bt_coex_max_thold = 780 enable ? BT_ENABLE_REDUCED_TXPOWER_THRESHOLD : 0; 781 mvmvif->bf_data.bt_coex_min_thold = 782 enable ? BT_DISABLE_REDUCED_TXPOWER_THRESHOLD : 0; 783} 784 785/* must be called under rcu_read_lock */ 786static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac, 787 struct ieee80211_vif *vif) 788{ 789 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 790 struct iwl_bt_iterator_data *data = _data; 791 struct iwl_mvm *mvm = data->mvm; 792 struct ieee80211_chanctx_conf *chanctx_conf; 793 enum ieee80211_smps_mode smps_mode; 794 u32 bt_activity_grading; 795 int ave_rssi; 796 797 lockdep_assert_held(&mvm->mutex); 798 799 switch (vif->type) { 800 case NL80211_IFTYPE_STATION: 801 /* default smps_mode for BSS / P2P client is AUTOMATIC */ 802 smps_mode = IEEE80211_SMPS_AUTOMATIC; 803 data->num_bss_ifaces++; 804 805 /* 806 * Count unassoc BSSes, relax SMSP constraints 807 * and disable reduced Tx Power 808 */ 809 if (!vif->bss_conf.assoc) { 810 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 811 smps_mode); 812 if (iwl_mvm_bt_coex_reduced_txp(mvm, 813 mvmvif->ap_sta_id, 814 false)) 815 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 816 return; 817 } 818 break; 819 case NL80211_IFTYPE_AP: 820 /* default smps_mode for AP / GO is OFF */ 821 smps_mode = IEEE80211_SMPS_OFF; 822 if (!mvmvif->ap_ibss_active) { 823 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 824 smps_mode); 825 return; 826 } 827 828 /* the Ack / Cts kill mask must be default if AP / GO */ 829 data->reduced_tx_power = false; 830 break; 831 default: 832 return; 833 } 834 835 chanctx_conf = rcu_dereference(vif->chanctx_conf); 836 837 /* If channel context is invalid or not on 2.4GHz .. */ 838 if ((!chanctx_conf || 839 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) { 840 /* ... relax constraints and disable rssi events */ 841 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 842 smps_mode); 843 if (vif->type == NL80211_IFTYPE_STATION) 844 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 845 return; 846 } 847 848 bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading); 849 if (bt_activity_grading >= BT_HIGH_TRAFFIC) 850 smps_mode = IEEE80211_SMPS_STATIC; 851 else if (bt_activity_grading >= BT_LOW_TRAFFIC) 852 smps_mode = vif->type == NL80211_IFTYPE_AP ? 853 IEEE80211_SMPS_OFF : 854 IEEE80211_SMPS_DYNAMIC; 855 IWL_DEBUG_COEX(data->mvm, 856 "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n", 857 mvmvif->id, data->notif->bt_status, bt_activity_grading, 858 smps_mode); 859 860 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, smps_mode); 861 862 /* low latency is always primary */ 863 if (iwl_mvm_vif_low_latency(mvmvif)) { 864 data->primary_ll = true; 865 866 data->secondary = data->primary; 867 data->primary = chanctx_conf; 868 } 869 870 if (vif->type == NL80211_IFTYPE_AP) { 871 if (!mvmvif->ap_ibss_active) 872 return; 873 874 if (chanctx_conf == data->primary) 875 return; 876 877 if (!data->primary_ll) { 878 /* 879 * downgrade the current primary no matter what its 880 * type is. 881 */ 882 data->secondary = data->primary; 883 data->primary = chanctx_conf; 884 } else { 885 /* there is low latency vif - we will be secondary */ 886 data->secondary = chanctx_conf; 887 } 888 return; 889 } 890 891 /* 892 * STA / P2P Client, try to be primary if first vif. If we are in low 893 * latency mode, we are already in primary and just don't do much 894 */ 895 if (!data->primary || data->primary == chanctx_conf) 896 data->primary = chanctx_conf; 897 else if (!data->secondary) 898 /* if secondary is not NULL, it might be a GO */ 899 data->secondary = chanctx_conf; 900 901 /* don't reduce the Tx power if in loose scheme */ 902 if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT || 903 mvm->cfg->bt_shared_single_ant) { 904 data->reduced_tx_power = false; 905 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 906 return; 907 } 908 909 /* reduced Txpower only if BT is on, so ...*/ 910 if (!data->notif->bt_status) { 911 /* ... cancel reduced Tx power ... */ 912 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) 913 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 914 data->reduced_tx_power = false; 915 916 /* ... and there is no need to get reports on RSSI any more. */ 917 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 918 return; 919 } 920 921 /* try to get the avg rssi from fw */ 922 ave_rssi = mvmvif->bf_data.ave_beacon_signal; 923 924 /* if the RSSI isn't valid, fake it is very low */ 925 if (!ave_rssi) 926 ave_rssi = -100; 927 if (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) { 928 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true)) 929 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 930 931 /* 932 * bt_kill_msk can be BT_KILL_MSK_REDUCED_TXPOW only if all the 933 * BSS / P2P clients have rssi above threshold. 934 * We set the bt_kill_msk to BT_KILL_MSK_REDUCED_TXPOW before 935 * the iteration, if one interface's rssi isn't good enough, 936 * bt_kill_msk will be set to default values. 937 */ 938 } else if (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) { 939 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) 940 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 941 942 /* 943 * One interface hasn't rssi above threshold, bt_kill_msk must 944 * be set to default values. 945 */ 946 data->reduced_tx_power = false; 947 } 948 949 /* Begin to monitor the RSSI: it may influence the reduced Tx power */ 950 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi); 951} 952 953static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm) 954{ 955 struct iwl_bt_iterator_data data = { 956 .mvm = mvm, 957 .notif = &mvm->last_bt_notif, 958 .reduced_tx_power = true, 959 }; 960 struct iwl_bt_coex_ci_cmd cmd = {}; 961 u8 ci_bw_idx; 962 963 rcu_read_lock(); 964 ieee80211_iterate_active_interfaces_atomic( 965 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 966 iwl_mvm_bt_notif_iterator, &data); 967 968 if (data.primary) { 969 struct ieee80211_chanctx_conf *chan = data.primary; 970 if (WARN_ON(!chan->def.chan)) { 971 rcu_read_unlock(); 972 return; 973 } 974 975 if (chan->def.width < NL80211_CHAN_WIDTH_40) { 976 ci_bw_idx = 0; 977 cmd.co_run_bw_primary = 0; 978 } else { 979 cmd.co_run_bw_primary = 1; 980 if (chan->def.center_freq1 > 981 chan->def.chan->center_freq) 982 ci_bw_idx = 2; 983 else 984 ci_bw_idx = 1; 985 } 986 987 cmd.bt_primary_ci = 988 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; 989 cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv); 990 } 991 992 if (data.secondary) { 993 struct ieee80211_chanctx_conf *chan = data.secondary; 994 if (WARN_ON(!data.secondary->def.chan)) { 995 rcu_read_unlock(); 996 return; 997 } 998 999 if (chan->def.width < NL80211_CHAN_WIDTH_40) { 1000 ci_bw_idx = 0; 1001 cmd.co_run_bw_secondary = 0; 1002 } else { 1003 cmd.co_run_bw_secondary = 1; 1004 if (chan->def.center_freq1 > 1005 chan->def.chan->center_freq) 1006 ci_bw_idx = 2; 1007 else 1008 ci_bw_idx = 1; 1009 } 1010 1011 cmd.bt_secondary_ci = 1012 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; 1013 cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv); 1014 } 1015 1016 rcu_read_unlock(); 1017 1018 /* Don't spam the fw with the same command over and over */ 1019 if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) { 1020 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, CMD_SYNC, 1021 sizeof(cmd), &cmd)) 1022 IWL_ERR(mvm, "Failed to send BT_CI cmd"); 1023 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd)); 1024 } 1025 1026 /* 1027 * If there are no BSS / P2P client interfaces, reduced Tx Power is 1028 * irrelevant since it is based on the RSSI coming from the beacon. 1029 * Use BT_KILL_MSK_DEFAULT in that case. 1030 */ 1031 data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; 1032 1033 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) 1034 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); 1035} 1036 1037/* upon association, the fw will send in BT Coex notification */ 1038int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm, 1039 struct iwl_rx_cmd_buffer *rxb, 1040 struct iwl_device_cmd *dev_cmd) 1041{ 1042 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1043 struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data; 1044 1045 1046 IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n"); 1047 IWL_DEBUG_COEX(mvm, "\tBT status: %s\n", 1048 notif->bt_status ? "ON" : "OFF"); 1049 IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn); 1050 IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance); 1051 IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n", 1052 le32_to_cpu(notif->primary_ch_lut)); 1053 IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n", 1054 le32_to_cpu(notif->secondary_ch_lut)); 1055 IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n", 1056 le32_to_cpu(notif->bt_activity_grading)); 1057 IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n", 1058 notif->bt_agg_traffic_load); 1059 1060 /* remember this notification for future use: rssi fluctuations */ 1061 memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif)); 1062 1063 iwl_mvm_bt_coex_notif_handle(mvm); 1064 1065 /* 1066 * This is an async handler for a notification, returning anything other 1067 * than 0 doesn't make sense even if HCMD failed. 1068 */ 1069 return 0; 1070} 1071 1072static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac, 1073 struct ieee80211_vif *vif) 1074{ 1075 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; 1076 struct iwl_bt_iterator_data *data = _data; 1077 struct iwl_mvm *mvm = data->mvm; 1078 1079 struct ieee80211_sta *sta; 1080 struct iwl_mvm_sta *mvmsta; 1081 1082 struct ieee80211_chanctx_conf *chanctx_conf; 1083 1084 rcu_read_lock(); 1085 chanctx_conf = rcu_dereference(vif->chanctx_conf); 1086 /* If channel context is invalid or not on 2.4GHz - don't count it */ 1087 if (!chanctx_conf || 1088 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) { 1089 rcu_read_unlock(); 1090 return; 1091 } 1092 rcu_read_unlock(); 1093 1094 if (vif->type != NL80211_IFTYPE_STATION || 1095 mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) 1096 return; 1097 1098 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], 1099 lockdep_is_held(&mvm->mutex)); 1100 1101 /* This can happen if the station has been removed right now */ 1102 if (IS_ERR_OR_NULL(sta)) 1103 return; 1104 1105 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1106 1107 data->num_bss_ifaces++; 1108 1109 /* 1110 * This interface doesn't support reduced Tx power (because of low 1111 * RSSI probably), then set bt_kill_msk to default values. 1112 */ 1113 if (!mvmsta->bt_reduced_txpower) 1114 data->reduced_tx_power = false; 1115 /* else - possibly leave it to BT_KILL_MSK_REDUCED_TXPOW */ 1116} 1117 1118void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1119 enum ieee80211_rssi_event rssi_event) 1120{ 1121 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; 1122 struct iwl_bt_iterator_data data = { 1123 .mvm = mvm, 1124 .reduced_tx_power = true, 1125 }; 1126 int ret; 1127 1128 lockdep_assert_held(&mvm->mutex); 1129 1130 /* Rssi update while not associated ?! */ 1131 if (WARN_ON_ONCE(mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)) 1132 return; 1133 1134 /* No BT - reports should be disabled */ 1135 if (!mvm->last_bt_notif.bt_status) 1136 return; 1137 1138 IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid, 1139 rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW"); 1140 1141 /* 1142 * Check if rssi is good enough for reduced Tx power, but not in loose 1143 * scheme. 1144 */ 1145 if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant || 1146 iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT) 1147 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, 1148 false); 1149 else 1150 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true); 1151 1152 if (ret) 1153 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n"); 1154 1155 ieee80211_iterate_active_interfaces_atomic( 1156 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1157 iwl_mvm_bt_rssi_iterator, &data); 1158 1159 /* 1160 * If there are no BSS / P2P client interfaces, reduced Tx Power is 1161 * irrelevant since it is based on the RSSI coming from the beacon. 1162 * Use BT_KILL_MSK_DEFAULT in that case. 1163 */ 1164 data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; 1165 1166 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) 1167 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); 1168} 1169 1170#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) 1171#define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200) 1172 1173u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm, 1174 struct ieee80211_sta *sta) 1175{ 1176 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1177 enum iwl_bt_coex_lut_type lut_type; 1178 1179 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < 1180 BT_HIGH_TRAFFIC) 1181 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 1182 1183 lut_type = iwl_get_coex_type(mvm, mvmsta->vif); 1184 1185 if (lut_type == BT_COEX_LOOSE_LUT) 1186 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 1187 1188 /* tight coex, high bt traffic, reduce AGG time limit */ 1189 return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT; 1190} 1191 1192bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm, 1193 struct ieee80211_sta *sta) 1194{ 1195 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1196 1197 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < 1198 BT_HIGH_TRAFFIC) 1199 return true; 1200 1201 /* 1202 * In Tight, BT can't Rx while we Tx, so use both antennas since BT is 1203 * already killed. 1204 * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while we 1205 * Tx. 1206 */ 1207 return iwl_get_coex_type(mvm, mvmsta->vif) == BT_COEX_TIGHT_LUT; 1208} 1209 1210u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr, 1211 struct ieee80211_tx_info *info, u8 ac) 1212{ 1213 __le16 fc = hdr->frame_control; 1214 1215 if (info->band != IEEE80211_BAND_2GHZ) 1216 return 0; 1217 1218 /* High prio packet (wrt. BT coex) if it is EAPOL, MCAST or MGMT */ 1219 if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO || 1220 is_multicast_ether_addr(hdr->addr1) || 1221 ieee80211_is_ctl(fc) || ieee80211_is_mgmt(fc) || 1222 ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc)) 1223 return 3; 1224 1225 switch (ac) { 1226 case IEEE80211_AC_BE: 1227 return 1; 1228 case IEEE80211_AC_VO: 1229 return 3; 1230 case IEEE80211_AC_VI: 1231 return 2; 1232 default: 1233 break; 1234 } 1235 1236 return 0; 1237} 1238 1239void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm) 1240{ 1241 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX)) 1242 return; 1243 1244 iwl_mvm_bt_coex_notif_handle(mvm); 1245} 1246 1247int iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm, 1248 struct iwl_rx_cmd_buffer *rxb, 1249 struct iwl_device_cmd *dev_cmd) 1250{ 1251 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1252 u32 ant_isolation = le32_to_cpup((void *)pkt->data); 1253 u8 __maybe_unused lower_bound, upper_bound; 1254 u8 lut; 1255 1256 struct iwl_bt_coex_cmd *bt_cmd; 1257 struct iwl_host_cmd cmd = { 1258 .id = BT_CONFIG, 1259 .len = { sizeof(*bt_cmd), }, 1260 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 1261 .flags = CMD_SYNC, 1262 }; 1263 1264 if (!IWL_MVM_BT_COEX_CORUNNING) 1265 return 0; 1266 1267 lockdep_assert_held(&mvm->mutex); 1268 1269 if (ant_isolation == mvm->last_ant_isol) 1270 return 0; 1271 1272 for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++) 1273 if (ant_isolation < antenna_coupling_ranges[lut + 1].range) 1274 break; 1275 1276 lower_bound = antenna_coupling_ranges[lut].range; 1277 1278 if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1) 1279 upper_bound = antenna_coupling_ranges[lut + 1].range; 1280 else 1281 upper_bound = antenna_coupling_ranges[lut].range; 1282 1283 IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n", 1284 ant_isolation, lower_bound, upper_bound, lut); 1285 1286 mvm->last_ant_isol = ant_isolation; 1287 1288 if (mvm->last_corun_lut == lut) 1289 return 0; 1290 1291 mvm->last_corun_lut = lut; 1292 1293 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); 1294 if (!bt_cmd) 1295 return 0; 1296 cmd.data[0] = bt_cmd; 1297 1298 bt_cmd->flags = cpu_to_le32(BT_COEX_NW); 1299 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE | 1300 BT_VALID_CORUN_LUT_20 | 1301 BT_VALID_CORUN_LUT_40); 1302 1303 /* For the moment, use the same LUT for 20GHz and 40GHz */ 1304 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[lut].lut20, 1305 sizeof(bt_cmd->bt4_corun_lut20)); 1306 1307 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[lut].lut20, 1308 sizeof(bt_cmd->bt4_corun_lut40)); 1309 1310 return 0; 1311} 1312