coex.c revision ae397472f64d6db307edea87db27303c78670352
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 107static int 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 ret = iwl_send_bt_prio_tbl(mvm); 574 if (ret) 575 return ret; 576 577 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); 578 if (!bt_cmd) 579 return -ENOMEM; 580 cmd.data[0] = bt_cmd; 581 582 bt_cmd->max_kill = 5; 583 bt_cmd->bt4_antenna_isolation_thr = BT_ANTENNA_COUPLING_THRESHOLD; 584 bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling; 585 bt_cmd->bt4_tx_tx_delta_freq_thr = 15; 586 bt_cmd->bt4_tx_rx_max_freq0 = 15; 587 bt_cmd->override_primary_lut = BT_COEX_INVALID_LUT; 588 bt_cmd->override_secondary_lut = BT_COEX_INVALID_LUT; 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 (IWL_MVM_BT_COEX_MPLUT) { 620 bt_cmd->flags |= cpu_to_le32(BT_COEX_MPLUT); 621 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_MULTI_PRIO_LUT); 622 } 623 624 if (mvm->cfg->bt_shared_single_ant) 625 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant, 626 sizeof(iwl_single_shared_ant)); 627 else 628 memcpy(&bt_cmd->decision_lut, iwl_combined_lookup, 629 sizeof(iwl_combined_lookup)); 630 631 /* Take first Co-running block LUT to get started */ 632 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[0].lut20, 633 sizeof(bt_cmd->bt4_corun_lut20)); 634 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[0].lut20, 635 sizeof(bt_cmd->bt4_corun_lut40)); 636 637 memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost, 638 sizeof(iwl_bt_prio_boost)); 639 memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut, 640 sizeof(iwl_bt_mprio_lut)); 641 bt_cmd->kill_ack_msk = 642 cpu_to_le32(iwl_bt_ack_kill_msk[BT_KILL_MSK_DEFAULT]); 643 bt_cmd->kill_cts_msk = 644 cpu_to_le32(iwl_bt_cts_kill_msk[BT_KILL_MSK_DEFAULT]); 645 646 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 647 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 648 649 ret = iwl_mvm_send_cmd(mvm, &cmd); 650 651 kfree(bt_cmd); 652 return ret; 653} 654 655static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm, 656 bool reduced_tx_power) 657{ 658 enum iwl_bt_kill_msk bt_kill_msk; 659 struct iwl_bt_coex_cmd *bt_cmd; 660 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif; 661 struct iwl_host_cmd cmd = { 662 .id = BT_CONFIG, 663 .data[0] = &bt_cmd, 664 .len = { sizeof(*bt_cmd), }, 665 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 666 .flags = CMD_SYNC, 667 }; 668 int ret = 0; 669 670 lockdep_assert_held(&mvm->mutex); 671 672 if (reduced_tx_power) { 673 /* Reduced Tx power has precedence on the type of the profile */ 674 bt_kill_msk = BT_KILL_MSK_REDUCED_TXPOW; 675 } else { 676 /* Low latency BT profile is active: give higher prio to BT */ 677 if (BT_MBOX_MSG(notif, 3, SCO_STATE) || 678 BT_MBOX_MSG(notif, 3, A2DP_STATE) || 679 BT_MBOX_MSG(notif, 3, SNIFF_STATE)) 680 bt_kill_msk = BT_KILL_MSK_SCO_HID_A2DP; 681 else 682 bt_kill_msk = BT_KILL_MSK_DEFAULT; 683 } 684 685 IWL_DEBUG_COEX(mvm, 686 "Update kill_msk: %d - SCO %sactive A2DP %sactive SNIFF %sactive\n", 687 bt_kill_msk, 688 BT_MBOX_MSG(notif, 3, SCO_STATE) ? "" : "in", 689 BT_MBOX_MSG(notif, 3, A2DP_STATE) ? "" : "in", 690 BT_MBOX_MSG(notif, 3, SNIFF_STATE) ? "" : "in"); 691 692 /* Don't send HCMD if there is no update */ 693 if (bt_kill_msk == mvm->bt_kill_msk) 694 return 0; 695 696 mvm->bt_kill_msk = bt_kill_msk; 697 698 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); 699 if (!bt_cmd) 700 return -ENOMEM; 701 cmd.data[0] = bt_cmd; 702 bt_cmd->flags = cpu_to_le32(BT_COEX_NW); 703 704 bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ack_kill_msk[bt_kill_msk]); 705 bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_cts_kill_msk[bt_kill_msk]); 706 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE | 707 BT_VALID_KILL_ACK | 708 BT_VALID_KILL_CTS); 709 710 IWL_DEBUG_COEX(mvm, "ACK Kill msk = 0x%08x, CTS Kill msk = 0x%08x\n", 711 iwl_bt_ack_kill_msk[bt_kill_msk], 712 iwl_bt_cts_kill_msk[bt_kill_msk]); 713 714 ret = iwl_mvm_send_cmd(mvm, &cmd); 715 716 kfree(bt_cmd); 717 return ret; 718} 719 720int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id, bool enable) 721{ 722 struct iwl_bt_coex_cmd *bt_cmd; 723 /* Send ASYNC since this can be sent from an atomic context */ 724 struct iwl_host_cmd cmd = { 725 .id = BT_CONFIG, 726 .len = { sizeof(*bt_cmd), }, 727 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 728 .flags = CMD_ASYNC, 729 }; 730 struct iwl_mvm_sta *mvmsta; 731 int ret; 732 733 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 734 if (!mvmsta) 735 return 0; 736 737 /* nothing to do */ 738 if (mvmsta->bt_reduced_txpower_dbg || 739 mvmsta->bt_reduced_txpower == enable) 740 return 0; 741 742 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC); 743 if (!bt_cmd) 744 return -ENOMEM; 745 cmd.data[0] = bt_cmd; 746 bt_cmd->flags = cpu_to_le32(BT_COEX_NW); 747 748 bt_cmd->valid_bit_msk = 749 cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER); 750 bt_cmd->bt_reduced_tx_power = sta_id; 751 752 if (enable) 753 bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT; 754 755 IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n", 756 enable ? "en" : "dis", sta_id); 757 758 mvmsta->bt_reduced_txpower = enable; 759 760 ret = iwl_mvm_send_cmd(mvm, &cmd); 761 762 kfree(bt_cmd); 763 return ret; 764} 765 766struct iwl_bt_iterator_data { 767 struct iwl_bt_coex_profile_notif *notif; 768 struct iwl_mvm *mvm; 769 u32 num_bss_ifaces; 770 bool reduced_tx_power; 771 struct ieee80211_chanctx_conf *primary; 772 struct ieee80211_chanctx_conf *secondary; 773 bool primary_ll; 774}; 775 776static inline 777void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm, 778 struct ieee80211_vif *vif, 779 bool enable, int rssi) 780{ 781 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 782 783 mvmvif->bf_data.last_bt_coex_event = rssi; 784 mvmvif->bf_data.bt_coex_max_thold = 785 enable ? BT_ENABLE_REDUCED_TXPOWER_THRESHOLD : 0; 786 mvmvif->bf_data.bt_coex_min_thold = 787 enable ? BT_DISABLE_REDUCED_TXPOWER_THRESHOLD : 0; 788} 789 790/* must be called under rcu_read_lock */ 791static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac, 792 struct ieee80211_vif *vif) 793{ 794 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 795 struct iwl_bt_iterator_data *data = _data; 796 struct iwl_mvm *mvm = data->mvm; 797 struct ieee80211_chanctx_conf *chanctx_conf; 798 enum ieee80211_smps_mode smps_mode; 799 u32 bt_activity_grading; 800 int ave_rssi; 801 802 lockdep_assert_held(&mvm->mutex); 803 804 switch (vif->type) { 805 case NL80211_IFTYPE_STATION: 806 /* default smps_mode for BSS / P2P client is AUTOMATIC */ 807 smps_mode = IEEE80211_SMPS_AUTOMATIC; 808 data->num_bss_ifaces++; 809 810 /* 811 * Count unassoc BSSes, relax SMSP constraints 812 * and disable reduced Tx Power 813 */ 814 if (!vif->bss_conf.assoc) { 815 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 816 smps_mode); 817 if (iwl_mvm_bt_coex_reduced_txp(mvm, 818 mvmvif->ap_sta_id, 819 false)) 820 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 821 return; 822 } 823 break; 824 case NL80211_IFTYPE_AP: 825 /* default smps_mode for AP / GO is OFF */ 826 smps_mode = IEEE80211_SMPS_OFF; 827 if (!mvmvif->ap_ibss_active) { 828 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 829 smps_mode); 830 return; 831 } 832 833 /* the Ack / Cts kill mask must be default if AP / GO */ 834 data->reduced_tx_power = false; 835 break; 836 default: 837 return; 838 } 839 840 chanctx_conf = rcu_dereference(vif->chanctx_conf); 841 842 /* If channel context is invalid or not on 2.4GHz .. */ 843 if ((!chanctx_conf || 844 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) { 845 /* ... relax constraints and disable rssi events */ 846 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 847 smps_mode); 848 if (vif->type == NL80211_IFTYPE_STATION) 849 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 850 return; 851 } 852 853 bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading); 854 if (bt_activity_grading >= BT_HIGH_TRAFFIC) 855 smps_mode = IEEE80211_SMPS_STATIC; 856 else if (bt_activity_grading >= BT_LOW_TRAFFIC) 857 smps_mode = vif->type == NL80211_IFTYPE_AP ? 858 IEEE80211_SMPS_OFF : 859 IEEE80211_SMPS_DYNAMIC; 860 IWL_DEBUG_COEX(data->mvm, 861 "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n", 862 mvmvif->id, data->notif->bt_status, bt_activity_grading, 863 smps_mode); 864 865 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, smps_mode); 866 867 /* low latency is always primary */ 868 if (iwl_mvm_vif_low_latency(mvmvif)) { 869 data->primary_ll = true; 870 871 data->secondary = data->primary; 872 data->primary = chanctx_conf; 873 } 874 875 if (vif->type == NL80211_IFTYPE_AP) { 876 if (!mvmvif->ap_ibss_active) 877 return; 878 879 if (chanctx_conf == data->primary) 880 return; 881 882 if (!data->primary_ll) { 883 /* 884 * downgrade the current primary no matter what its 885 * type is. 886 */ 887 data->secondary = data->primary; 888 data->primary = chanctx_conf; 889 } else { 890 /* there is low latency vif - we will be secondary */ 891 data->secondary = chanctx_conf; 892 } 893 return; 894 } 895 896 /* 897 * STA / P2P Client, try to be primary if first vif. If we are in low 898 * latency mode, we are already in primary and just don't do much 899 */ 900 if (!data->primary || data->primary == chanctx_conf) 901 data->primary = chanctx_conf; 902 else if (!data->secondary) 903 /* if secondary is not NULL, it might be a GO */ 904 data->secondary = chanctx_conf; 905 906 /* don't reduce the Tx power if in loose scheme */ 907 if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT || 908 mvm->cfg->bt_shared_single_ant) { 909 data->reduced_tx_power = false; 910 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 911 return; 912 } 913 914 /* reduced Txpower only if BT is on, so ...*/ 915 if (!data->notif->bt_status) { 916 /* ... cancel reduced Tx power ... */ 917 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) 918 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 919 data->reduced_tx_power = false; 920 921 /* ... and there is no need to get reports on RSSI any more. */ 922 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 923 return; 924 } 925 926 /* try to get the avg rssi from fw */ 927 ave_rssi = mvmvif->bf_data.ave_beacon_signal; 928 929 /* if the RSSI isn't valid, fake it is very low */ 930 if (!ave_rssi) 931 ave_rssi = -100; 932 if (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) { 933 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true)) 934 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 935 936 /* 937 * bt_kill_msk can be BT_KILL_MSK_REDUCED_TXPOW only if all the 938 * BSS / P2P clients have rssi above threshold. 939 * We set the bt_kill_msk to BT_KILL_MSK_REDUCED_TXPOW before 940 * the iteration, if one interface's rssi isn't good enough, 941 * bt_kill_msk will be set to default values. 942 */ 943 } else if (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) { 944 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) 945 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 946 947 /* 948 * One interface hasn't rssi above threshold, bt_kill_msk must 949 * be set to default values. 950 */ 951 data->reduced_tx_power = false; 952 } 953 954 /* Begin to monitor the RSSI: it may influence the reduced Tx power */ 955 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi); 956} 957 958static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm) 959{ 960 struct iwl_bt_iterator_data data = { 961 .mvm = mvm, 962 .notif = &mvm->last_bt_notif, 963 .reduced_tx_power = true, 964 }; 965 struct iwl_bt_coex_ci_cmd cmd = {}; 966 u8 ci_bw_idx; 967 968 rcu_read_lock(); 969 ieee80211_iterate_active_interfaces_atomic( 970 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 971 iwl_mvm_bt_notif_iterator, &data); 972 973 if (data.primary) { 974 struct ieee80211_chanctx_conf *chan = data.primary; 975 if (WARN_ON(!chan->def.chan)) { 976 rcu_read_unlock(); 977 return; 978 } 979 980 if (chan->def.width < NL80211_CHAN_WIDTH_40) { 981 ci_bw_idx = 0; 982 cmd.co_run_bw_primary = 0; 983 } else { 984 cmd.co_run_bw_primary = 1; 985 if (chan->def.center_freq1 > 986 chan->def.chan->center_freq) 987 ci_bw_idx = 2; 988 else 989 ci_bw_idx = 1; 990 } 991 992 cmd.bt_primary_ci = 993 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; 994 cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv); 995 } 996 997 if (data.secondary) { 998 struct ieee80211_chanctx_conf *chan = data.secondary; 999 if (WARN_ON(!data.secondary->def.chan)) { 1000 rcu_read_unlock(); 1001 return; 1002 } 1003 1004 if (chan->def.width < NL80211_CHAN_WIDTH_40) { 1005 ci_bw_idx = 0; 1006 cmd.co_run_bw_secondary = 0; 1007 } else { 1008 cmd.co_run_bw_secondary = 1; 1009 if (chan->def.center_freq1 > 1010 chan->def.chan->center_freq) 1011 ci_bw_idx = 2; 1012 else 1013 ci_bw_idx = 1; 1014 } 1015 1016 cmd.bt_secondary_ci = 1017 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; 1018 cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv); 1019 } 1020 1021 rcu_read_unlock(); 1022 1023 /* Don't spam the fw with the same command over and over */ 1024 if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) { 1025 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, CMD_SYNC, 1026 sizeof(cmd), &cmd)) 1027 IWL_ERR(mvm, "Failed to send BT_CI cmd"); 1028 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd)); 1029 } 1030 1031 /* 1032 * If there are no BSS / P2P client interfaces, reduced Tx Power is 1033 * irrelevant since it is based on the RSSI coming from the beacon. 1034 * Use BT_KILL_MSK_DEFAULT in that case. 1035 */ 1036 data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; 1037 1038 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) 1039 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); 1040} 1041 1042/* upon association, the fw will send in BT Coex notification */ 1043int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm, 1044 struct iwl_rx_cmd_buffer *rxb, 1045 struct iwl_device_cmd *dev_cmd) 1046{ 1047 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1048 struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data; 1049 1050 1051 IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n"); 1052 IWL_DEBUG_COEX(mvm, "\tBT status: %s\n", 1053 notif->bt_status ? "ON" : "OFF"); 1054 IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn); 1055 IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance); 1056 IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n", 1057 le32_to_cpu(notif->primary_ch_lut)); 1058 IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n", 1059 le32_to_cpu(notif->secondary_ch_lut)); 1060 IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n", 1061 le32_to_cpu(notif->bt_activity_grading)); 1062 IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n", 1063 notif->bt_agg_traffic_load); 1064 1065 /* remember this notification for future use: rssi fluctuations */ 1066 memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif)); 1067 1068 iwl_mvm_bt_coex_notif_handle(mvm); 1069 1070 /* 1071 * This is an async handler for a notification, returning anything other 1072 * than 0 doesn't make sense even if HCMD failed. 1073 */ 1074 return 0; 1075} 1076 1077static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac, 1078 struct ieee80211_vif *vif) 1079{ 1080 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; 1081 struct iwl_bt_iterator_data *data = _data; 1082 struct iwl_mvm *mvm = data->mvm; 1083 1084 struct ieee80211_sta *sta; 1085 struct iwl_mvm_sta *mvmsta; 1086 1087 struct ieee80211_chanctx_conf *chanctx_conf; 1088 1089 rcu_read_lock(); 1090 chanctx_conf = rcu_dereference(vif->chanctx_conf); 1091 /* If channel context is invalid or not on 2.4GHz - don't count it */ 1092 if (!chanctx_conf || 1093 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) { 1094 rcu_read_unlock(); 1095 return; 1096 } 1097 rcu_read_unlock(); 1098 1099 if (vif->type != NL80211_IFTYPE_STATION || 1100 mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) 1101 return; 1102 1103 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], 1104 lockdep_is_held(&mvm->mutex)); 1105 1106 /* This can happen if the station has been removed right now */ 1107 if (IS_ERR_OR_NULL(sta)) 1108 return; 1109 1110 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1111 1112 data->num_bss_ifaces++; 1113 1114 /* 1115 * This interface doesn't support reduced Tx power (because of low 1116 * RSSI probably), then set bt_kill_msk to default values. 1117 */ 1118 if (!mvmsta->bt_reduced_txpower) 1119 data->reduced_tx_power = false; 1120 /* else - possibly leave it to BT_KILL_MSK_REDUCED_TXPOW */ 1121} 1122 1123void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1124 enum ieee80211_rssi_event rssi_event) 1125{ 1126 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; 1127 struct iwl_bt_iterator_data data = { 1128 .mvm = mvm, 1129 .reduced_tx_power = true, 1130 }; 1131 int ret; 1132 1133 lockdep_assert_held(&mvm->mutex); 1134 1135 /* 1136 * Rssi update while not associated - can happen since the statistics 1137 * are handled asynchronously 1138 */ 1139 if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) 1140 return; 1141 1142 /* No BT - reports should be disabled */ 1143 if (!mvm->last_bt_notif.bt_status) 1144 return; 1145 1146 IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid, 1147 rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW"); 1148 1149 /* 1150 * Check if rssi is good enough for reduced Tx power, but not in loose 1151 * scheme. 1152 */ 1153 if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant || 1154 iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT) 1155 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, 1156 false); 1157 else 1158 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true); 1159 1160 if (ret) 1161 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n"); 1162 1163 ieee80211_iterate_active_interfaces_atomic( 1164 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1165 iwl_mvm_bt_rssi_iterator, &data); 1166 1167 /* 1168 * If there are no BSS / P2P client interfaces, reduced Tx Power is 1169 * irrelevant since it is based on the RSSI coming from the beacon. 1170 * Use BT_KILL_MSK_DEFAULT in that case. 1171 */ 1172 data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; 1173 1174 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) 1175 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); 1176} 1177 1178#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) 1179#define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200) 1180 1181u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm, 1182 struct ieee80211_sta *sta) 1183{ 1184 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1185 enum iwl_bt_coex_lut_type lut_type; 1186 1187 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < 1188 BT_HIGH_TRAFFIC) 1189 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 1190 1191 lut_type = iwl_get_coex_type(mvm, mvmsta->vif); 1192 1193 if (lut_type == BT_COEX_LOOSE_LUT) 1194 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 1195 1196 /* tight coex, high bt traffic, reduce AGG time limit */ 1197 return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT; 1198} 1199 1200bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm, 1201 struct ieee80211_sta *sta) 1202{ 1203 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1204 1205 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < 1206 BT_HIGH_TRAFFIC) 1207 return true; 1208 1209 /* 1210 * In Tight, BT can't Rx while we Tx, so use both antennas since BT is 1211 * already killed. 1212 * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while we 1213 * Tx. 1214 */ 1215 return iwl_get_coex_type(mvm, mvmsta->vif) == BT_COEX_TIGHT_LUT; 1216} 1217 1218bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm, 1219 enum ieee80211_band band) 1220{ 1221 u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading); 1222 1223 if (band != IEEE80211_BAND_2GHZ) 1224 return false; 1225 1226 return bt_activity >= BT_LOW_TRAFFIC; 1227} 1228 1229u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr, 1230 struct ieee80211_tx_info *info, u8 ac) 1231{ 1232 __le16 fc = hdr->frame_control; 1233 1234 if (info->band != IEEE80211_BAND_2GHZ) 1235 return 0; 1236 1237 if (unlikely(mvm->bt_tx_prio)) 1238 return mvm->bt_tx_prio - 1; 1239 1240 /* High prio packet (wrt. BT coex) if it is EAPOL, MCAST or MGMT */ 1241 if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO || 1242 is_multicast_ether_addr(hdr->addr1) || 1243 ieee80211_is_ctl(fc) || ieee80211_is_mgmt(fc) || 1244 ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc)) 1245 return 3; 1246 1247 switch (ac) { 1248 case IEEE80211_AC_BE: 1249 return 1; 1250 case IEEE80211_AC_VO: 1251 return 3; 1252 case IEEE80211_AC_VI: 1253 return 2; 1254 default: 1255 break; 1256 } 1257 1258 return 0; 1259} 1260 1261void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm) 1262{ 1263 iwl_mvm_bt_coex_notif_handle(mvm); 1264} 1265 1266int iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm, 1267 struct iwl_rx_cmd_buffer *rxb, 1268 struct iwl_device_cmd *dev_cmd) 1269{ 1270 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1271 u32 ant_isolation = le32_to_cpup((void *)pkt->data); 1272 u8 __maybe_unused lower_bound, upper_bound; 1273 u8 lut; 1274 1275 struct iwl_bt_coex_cmd *bt_cmd; 1276 struct iwl_host_cmd cmd = { 1277 .id = BT_CONFIG, 1278 .len = { sizeof(*bt_cmd), }, 1279 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 1280 .flags = CMD_SYNC, 1281 }; 1282 1283 if (!IWL_MVM_BT_COEX_CORUNNING) 1284 return 0; 1285 1286 lockdep_assert_held(&mvm->mutex); 1287 1288 if (ant_isolation == mvm->last_ant_isol) 1289 return 0; 1290 1291 for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++) 1292 if (ant_isolation < antenna_coupling_ranges[lut + 1].range) 1293 break; 1294 1295 lower_bound = antenna_coupling_ranges[lut].range; 1296 1297 if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1) 1298 upper_bound = antenna_coupling_ranges[lut + 1].range; 1299 else 1300 upper_bound = antenna_coupling_ranges[lut].range; 1301 1302 IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n", 1303 ant_isolation, lower_bound, upper_bound, lut); 1304 1305 mvm->last_ant_isol = ant_isolation; 1306 1307 if (mvm->last_corun_lut == lut) 1308 return 0; 1309 1310 mvm->last_corun_lut = lut; 1311 1312 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); 1313 if (!bt_cmd) 1314 return 0; 1315 cmd.data[0] = bt_cmd; 1316 1317 bt_cmd->flags = cpu_to_le32(BT_COEX_NW); 1318 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE | 1319 BT_VALID_CORUN_LUT_20 | 1320 BT_VALID_CORUN_LUT_40); 1321 1322 /* For the moment, use the same LUT for 20GHz and 40GHz */ 1323 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[lut].lut20, 1324 sizeof(bt_cmd->bt4_corun_lut20)); 1325 1326 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[lut].lut20, 1327 sizeof(bt_cmd->bt4_corun_lut40)); 1328 1329 return 0; 1330} 1331