coex.c revision 5b7ff6158dc921fa9ae0c47a5a29a750d0d0ce60
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 <net/mac80211.h> 65 66#include "fw-api-coex.h" 67#include "iwl-modparams.h" 68#include "mvm.h" 69#include "iwl-debug.h" 70 71#define EVENT_PRIO_ANT(_evt, _prio, _shrd_ant) \ 72 [(_evt)] = (((_prio) << BT_COEX_PRIO_TBL_PRIO_POS) | \ 73 ((_shrd_ant) << BT_COEX_PRIO_TBL_SHRD_ANT_POS)) 74 75static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = { 76 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB1, 77 BT_COEX_PRIO_TBL_PRIO_BYPASS, 0), 78 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB2, 79 BT_COEX_PRIO_TBL_PRIO_BYPASS, 1), 80 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW1, 81 BT_COEX_PRIO_TBL_PRIO_LOW, 0), 82 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW2, 83 BT_COEX_PRIO_TBL_PRIO_LOW, 1), 84 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH1, 85 BT_COEX_PRIO_TBL_PRIO_HIGH, 0), 86 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH2, 87 BT_COEX_PRIO_TBL_PRIO_HIGH, 1), 88 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_DTIM, 89 BT_COEX_PRIO_TBL_DISABLED, 0), 90 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN52, 91 BT_COEX_PRIO_TBL_PRIO_COEX_OFF, 0), 92 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN24, 93 BT_COEX_PRIO_TBL_PRIO_COEX_ON, 0), 94 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_IDLE, 95 BT_COEX_PRIO_TBL_PRIO_COEX_IDLE, 0), 96 0, 0, 0, 0, 0, 0, 97}; 98 99#undef EVENT_PRIO_ANT 100 101#define BT_ENABLE_REDUCED_TXPOWER_THRESHOLD (-62) 102#define BT_DISABLE_REDUCED_TXPOWER_THRESHOLD (-65) 103#define BT_ANTENNA_COUPLING_THRESHOLD (30) 104 105int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm) 106{ 107 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX)) 108 return 0; 109 110 return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, CMD_SYNC, 111 sizeof(struct iwl_bt_coex_prio_tbl_cmd), 112 &iwl_bt_prio_tbl); 113} 114 115const u32 iwl_bt_ack_kill_msk[BT_KILL_MSK_MAX] = { 116 [BT_KILL_MSK_DEFAULT] = 0xffff0000, 117 [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff, 118 [BT_KILL_MSK_REDUCED_TXPOW] = 0, 119}; 120 121const u32 iwl_bt_cts_kill_msk[BT_KILL_MSK_MAX] = { 122 [BT_KILL_MSK_DEFAULT] = 0xffff0000, 123 [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff, 124 [BT_KILL_MSK_REDUCED_TXPOW] = 0, 125}; 126 127static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = { 128 cpu_to_le32(0xf0f0f0f0), 129 cpu_to_le32(0xc0c0c0c0), 130 cpu_to_le32(0xfcfcfcfc), 131 cpu_to_le32(0xff00ff00), 132}; 133 134static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = { 135 { 136 cpu_to_le32(0x40000000), 137 cpu_to_le32(0x00000000), 138 cpu_to_le32(0x44000000), 139 cpu_to_le32(0x00000000), 140 cpu_to_le32(0x40000000), 141 cpu_to_le32(0x00000000), 142 cpu_to_le32(0x44000000), 143 cpu_to_le32(0x00000000), 144 cpu_to_le32(0xc0004000), 145 cpu_to_le32(0xf0005000), 146 cpu_to_le32(0xc0004000), 147 cpu_to_le32(0xf0005000), 148 }, 149 { 150 cpu_to_le32(0x40000000), 151 cpu_to_le32(0x00000000), 152 cpu_to_le32(0x44000000), 153 cpu_to_le32(0x00000000), 154 cpu_to_le32(0x40000000), 155 cpu_to_le32(0x00000000), 156 cpu_to_le32(0x44000000), 157 cpu_to_le32(0x00000000), 158 cpu_to_le32(0xc0004000), 159 cpu_to_le32(0xf0005000), 160 cpu_to_le32(0xc0004000), 161 cpu_to_le32(0xf0005000), 162 }, 163 { 164 cpu_to_le32(0x40000000), 165 cpu_to_le32(0x00000000), 166 cpu_to_le32(0x44000000), 167 cpu_to_le32(0x00000000), 168 cpu_to_le32(0x40000000), 169 cpu_to_le32(0x00000000), 170 cpu_to_le32(0x44000000), 171 cpu_to_le32(0x00000000), 172 cpu_to_le32(0xc0004000), 173 cpu_to_le32(0xf0005000), 174 cpu_to_le32(0xc0004000), 175 cpu_to_le32(0xf0005000), 176 }, 177}; 178 179static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = { 180 { 181 /* Tight */ 182 cpu_to_le32(0xaaaaaaaa), 183 cpu_to_le32(0xaaaaaaaa), 184 cpu_to_le32(0xaeaaaaaa), 185 cpu_to_le32(0xaaaaaaaa), 186 cpu_to_le32(0xcc00ff28), 187 cpu_to_le32(0x0000aaaa), 188 cpu_to_le32(0xcc00aaaa), 189 cpu_to_le32(0x0000aaaa), 190 cpu_to_le32(0xc0004000), 191 cpu_to_le32(0x00000000), 192 cpu_to_le32(0xf0005000), 193 cpu_to_le32(0xf0005000), 194 }, 195 { 196 /* Loose */ 197 cpu_to_le32(0xaaaaaaaa), 198 cpu_to_le32(0xaaaaaaaa), 199 cpu_to_le32(0xaaaaaaaa), 200 cpu_to_le32(0xaaaaaaaa), 201 cpu_to_le32(0xcc00ff28), 202 cpu_to_le32(0x0000aaaa), 203 cpu_to_le32(0xcc00aaaa), 204 cpu_to_le32(0x0000aaaa), 205 cpu_to_le32(0x00000000), 206 cpu_to_le32(0x00000000), 207 cpu_to_le32(0xf0005000), 208 cpu_to_le32(0xf0005000), 209 }, 210 { 211 /* Tx Tx disabled */ 212 cpu_to_le32(0xaaaaaaaa), 213 cpu_to_le32(0xaaaaaaaa), 214 cpu_to_le32(0xaaaaaaaa), 215 cpu_to_le32(0xaaaaaaaa), 216 cpu_to_le32(0xcc00ff28), 217 cpu_to_le32(0x0000aaaa), 218 cpu_to_le32(0xcc00aaaa), 219 cpu_to_le32(0x0000aaaa), 220 cpu_to_le32(0xC0004000), 221 cpu_to_le32(0xC0004000), 222 cpu_to_le32(0xF0005000), 223 cpu_to_le32(0xF0005000), 224 }, 225}; 226 227/* 20MHz / 40MHz below / 40Mhz above*/ 228static const __le64 iwl_ci_mask[][3] = { 229 /* dummy entry for channel 0 */ 230 {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)}, 231 { 232 cpu_to_le64(0x0000001FFFULL), 233 cpu_to_le64(0x0ULL), 234 cpu_to_le64(0x00007FFFFFULL), 235 }, 236 { 237 cpu_to_le64(0x000000FFFFULL), 238 cpu_to_le64(0x0ULL), 239 cpu_to_le64(0x0003FFFFFFULL), 240 }, 241 { 242 cpu_to_le64(0x000003FFFCULL), 243 cpu_to_le64(0x0ULL), 244 cpu_to_le64(0x000FFFFFFCULL), 245 }, 246 { 247 cpu_to_le64(0x00001FFFE0ULL), 248 cpu_to_le64(0x0ULL), 249 cpu_to_le64(0x007FFFFFE0ULL), 250 }, 251 { 252 cpu_to_le64(0x00007FFF80ULL), 253 cpu_to_le64(0x00007FFFFFULL), 254 cpu_to_le64(0x01FFFFFF80ULL), 255 }, 256 { 257 cpu_to_le64(0x0003FFFC00ULL), 258 cpu_to_le64(0x0003FFFFFFULL), 259 cpu_to_le64(0x0FFFFFFC00ULL), 260 }, 261 { 262 cpu_to_le64(0x000FFFF000ULL), 263 cpu_to_le64(0x000FFFFFFCULL), 264 cpu_to_le64(0x3FFFFFF000ULL), 265 }, 266 { 267 cpu_to_le64(0x007FFF8000ULL), 268 cpu_to_le64(0x007FFFFFE0ULL), 269 cpu_to_le64(0xFFFFFF8000ULL), 270 }, 271 { 272 cpu_to_le64(0x01FFFE0000ULL), 273 cpu_to_le64(0x01FFFFFF80ULL), 274 cpu_to_le64(0xFFFFFE0000ULL), 275 }, 276 { 277 cpu_to_le64(0x0FFFF00000ULL), 278 cpu_to_le64(0x0FFFFFFC00ULL), 279 cpu_to_le64(0x0ULL), 280 }, 281 { 282 cpu_to_le64(0x3FFFC00000ULL), 283 cpu_to_le64(0x3FFFFFF000ULL), 284 cpu_to_le64(0x0) 285 }, 286 { 287 cpu_to_le64(0xFFFE000000ULL), 288 cpu_to_le64(0xFFFFFF8000ULL), 289 cpu_to_le64(0x0) 290 }, 291 { 292 cpu_to_le64(0xFFF8000000ULL), 293 cpu_to_le64(0xFFFFFE0000ULL), 294 cpu_to_le64(0x0) 295 }, 296 { 297 cpu_to_le64(0xFFC0000000ULL), 298 cpu_to_le64(0x0ULL), 299 cpu_to_le64(0x0ULL) 300 }, 301}; 302 303static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = { 304 cpu_to_le32(0x22002200), 305 cpu_to_le32(0x33113311), 306}; 307 308struct corunning_block_luts { 309 u8 range; 310 __le32 lut20[BT_COEX_CORUN_LUT_SIZE]; 311}; 312 313/* 314 * Ranges for the antenna coupling calibration / co-running block LUT: 315 * LUT0: [ 0, 12[ 316 * LUT1: [12, 20[ 317 * LUT2: [20, 21[ 318 * LUT3: [21, 23[ 319 * LUT4: [23, 27[ 320 * LUT5: [27, 30[ 321 * LUT6: [30, 32[ 322 * LUT7: [32, 33[ 323 * LUT8: [33, - [ 324 */ 325static const struct corunning_block_luts antenna_coupling_ranges[] = { 326 { 327 .range = 0, 328 .lut20 = { 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 345 }, 346 }, 347 { 348 .range = 12, 349 .lut20 = { 350 cpu_to_le32(0x00000001), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 366 }, 367 }, 368 { 369 .range = 20, 370 .lut20 = { 371 cpu_to_le32(0x00000002), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 387 }, 388 }, 389 { 390 .range = 21, 391 .lut20 = { 392 cpu_to_le32(0x00000003), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 408 }, 409 }, 410 { 411 .range = 23, 412 .lut20 = { 413 cpu_to_le32(0x00000004), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 429 }, 430 }, 431 { 432 .range = 27, 433 .lut20 = { 434 cpu_to_le32(0x00000005), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 450 }, 451 }, 452 { 453 .range = 30, 454 .lut20 = { 455 cpu_to_le32(0x00000006), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 471 }, 472 }, 473 { 474 .range = 32, 475 .lut20 = { 476 cpu_to_le32(0x00000007), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 492 }, 493 }, 494 { 495 .range = 33, 496 .lut20 = { 497 cpu_to_le32(0x00000008), 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 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 513 }, 514 }, 515}; 516 517static enum iwl_bt_coex_lut_type 518iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif) 519{ 520 struct ieee80211_chanctx_conf *chanctx_conf; 521 enum iwl_bt_coex_lut_type ret; 522 u16 phy_ctx_id; 523 524 /* 525 * Checking that we hold mvm->mutex is a good idea, but the rate 526 * control can't acquire the mutex since it runs in Tx path. 527 * So this is racy in that case, but in the worst case, the AMPDU 528 * size limit will be wrong for a short time which is not a big 529 * issue. 530 */ 531 532 rcu_read_lock(); 533 534 chanctx_conf = rcu_dereference(vif->chanctx_conf); 535 536 if (!chanctx_conf || 537 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) { 538 rcu_read_unlock(); 539 return BT_COEX_LOOSE_LUT; 540 } 541 542 ret = BT_COEX_TX_DIS_LUT; 543 544 if (mvm->cfg->bt_shared_single_ant) { 545 rcu_read_unlock(); 546 return ret; 547 } 548 549 phy_ctx_id = *((u16 *)chanctx_conf->drv_priv); 550 551 if (mvm->last_bt_ci_cmd.primary_ch_phy_id == phy_ctx_id) 552 ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut); 553 else if (mvm->last_bt_ci_cmd.secondary_ch_phy_id == phy_ctx_id) 554 ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut); 555 /* else - default = TX TX disallowed */ 556 557 rcu_read_unlock(); 558 559 return ret; 560} 561 562int iwl_send_bt_init_conf(struct iwl_mvm *mvm) 563{ 564 struct iwl_bt_coex_cmd *bt_cmd; 565 struct iwl_host_cmd cmd = { 566 .id = BT_CONFIG, 567 .len = { sizeof(*bt_cmd), }, 568 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 569 .flags = CMD_SYNC, 570 }; 571 int ret; 572 u32 flags; 573 574 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX)) 575 return 0; 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, 587 588 flags = iwlwifi_mod_params.bt_coex_active ? 589 BT_COEX_NW : BT_COEX_DISABLE; 590 bt_cmd->flags = cpu_to_le32(flags); 591 592 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE | 593 BT_VALID_BT_PRIO_BOOST | 594 BT_VALID_MAX_KILL | 595 BT_VALID_3W_TMRS | 596 BT_VALID_KILL_ACK | 597 BT_VALID_KILL_CTS | 598 BT_VALID_REDUCED_TX_POWER | 599 BT_VALID_LUT | 600 BT_VALID_WIFI_RX_SW_PRIO_BOOST | 601 BT_VALID_WIFI_TX_SW_PRIO_BOOST | 602 BT_VALID_ANT_ISOLATION | 603 BT_VALID_ANT_ISOLATION_THRS | 604 BT_VALID_TXTX_DELTA_FREQ_THRS | 605 BT_VALID_TXRX_MAX_FREQ_0 | 606 BT_VALID_SYNC_TO_SCO); 607 608 if (IWL_MVM_BT_COEX_SYNC2SCO) 609 bt_cmd->flags |= cpu_to_le32(BT_COEX_SYNC2SCO); 610 611 if (IWL_MVM_BT_COEX_CORUNNING) { 612 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_CORUN_LUT_20 | 613 BT_VALID_CORUN_LUT_40); 614 bt_cmd->flags |= cpu_to_le32(BT_COEX_CORUNNING); 615 } 616 617 if (mvm->cfg->bt_shared_single_ant) 618 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant, 619 sizeof(iwl_single_shared_ant)); 620 else 621 memcpy(&bt_cmd->decision_lut, iwl_combined_lookup, 622 sizeof(iwl_combined_lookup)); 623 624 /* Take first Co-running block LUT to get started */ 625 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[0].lut20, 626 sizeof(bt_cmd->bt4_corun_lut20)); 627 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[0].lut20, 628 sizeof(bt_cmd->bt4_corun_lut40)); 629 630 memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost, 631 sizeof(iwl_bt_prio_boost)); 632 memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut, 633 sizeof(iwl_bt_mprio_lut)); 634 bt_cmd->kill_ack_msk = 635 cpu_to_le32(iwl_bt_ack_kill_msk[BT_KILL_MSK_DEFAULT]); 636 bt_cmd->kill_cts_msk = 637 cpu_to_le32(iwl_bt_cts_kill_msk[BT_KILL_MSK_DEFAULT]); 638 639 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 640 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 641 642 ret = iwl_mvm_send_cmd(mvm, &cmd); 643 644 kfree(bt_cmd); 645 return ret; 646} 647 648static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm, 649 bool reduced_tx_power) 650{ 651 enum iwl_bt_kill_msk bt_kill_msk; 652 struct iwl_bt_coex_cmd *bt_cmd; 653 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif; 654 struct iwl_host_cmd cmd = { 655 .id = BT_CONFIG, 656 .data[0] = &bt_cmd, 657 .len = { sizeof(*bt_cmd), }, 658 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 659 .flags = CMD_SYNC, 660 }; 661 int ret = 0; 662 663 lockdep_assert_held(&mvm->mutex); 664 665 if (reduced_tx_power) { 666 /* Reduced Tx power has precedence on the type of the profile */ 667 bt_kill_msk = BT_KILL_MSK_REDUCED_TXPOW; 668 } else { 669 /* Low latency BT profile is active: give higher prio to BT */ 670 if (BT_MBOX_MSG(notif, 3, SCO_STATE) || 671 BT_MBOX_MSG(notif, 3, A2DP_STATE) || 672 BT_MBOX_MSG(notif, 3, SNIFF_STATE)) 673 bt_kill_msk = BT_KILL_MSK_SCO_HID_A2DP; 674 else 675 bt_kill_msk = BT_KILL_MSK_DEFAULT; 676 } 677 678 IWL_DEBUG_COEX(mvm, 679 "Update kill_msk: %d - SCO %sactive A2DP %sactive SNIFF %sactive\n", 680 bt_kill_msk, 681 BT_MBOX_MSG(notif, 3, SCO_STATE) ? "" : "in", 682 BT_MBOX_MSG(notif, 3, A2DP_STATE) ? "" : "in", 683 BT_MBOX_MSG(notif, 3, SNIFF_STATE) ? "" : "in"); 684 685 /* Don't send HCMD if there is no update */ 686 if (bt_kill_msk == mvm->bt_kill_msk) 687 return 0; 688 689 mvm->bt_kill_msk = bt_kill_msk; 690 691 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); 692 if (!bt_cmd) 693 return -ENOMEM; 694 cmd.data[0] = bt_cmd; 695 bt_cmd->flags = cpu_to_le32(BT_COEX_NW); 696 697 bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ack_kill_msk[bt_kill_msk]); 698 bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_cts_kill_msk[bt_kill_msk]); 699 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE | 700 BT_VALID_KILL_ACK | 701 BT_VALID_KILL_CTS); 702 703 IWL_DEBUG_COEX(mvm, "ACK Kill msk = 0x%08x, CTS Kill msk = 0x%08x\n", 704 iwl_bt_ack_kill_msk[bt_kill_msk], 705 iwl_bt_cts_kill_msk[bt_kill_msk]); 706 707 ret = iwl_mvm_send_cmd(mvm, &cmd); 708 709 kfree(bt_cmd); 710 return ret; 711} 712 713int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id, bool enable) 714{ 715 struct iwl_bt_coex_cmd *bt_cmd; 716 /* Send ASYNC since this can be sent from an atomic context */ 717 struct iwl_host_cmd cmd = { 718 .id = BT_CONFIG, 719 .len = { sizeof(*bt_cmd), }, 720 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 721 .flags = CMD_ASYNC, 722 }; 723 struct iwl_mvm_sta *mvmsta; 724 int ret; 725 726 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 727 if (!mvmsta) 728 return 0; 729 730 /* nothing to do */ 731 if (mvmsta->bt_reduced_txpower_dbg || 732 mvmsta->bt_reduced_txpower == enable) 733 return 0; 734 735 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC); 736 if (!bt_cmd) 737 return -ENOMEM; 738 cmd.data[0] = bt_cmd; 739 bt_cmd->flags = cpu_to_le32(BT_COEX_NW); 740 741 bt_cmd->valid_bit_msk = 742 cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER); 743 bt_cmd->bt_reduced_tx_power = sta_id; 744 745 if (enable) 746 bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT; 747 748 IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n", 749 enable ? "en" : "dis", sta_id); 750 751 mvmsta->bt_reduced_txpower = enable; 752 753 ret = iwl_mvm_send_cmd(mvm, &cmd); 754 755 kfree(bt_cmd); 756 return ret; 757} 758 759struct iwl_bt_iterator_data { 760 struct iwl_bt_coex_profile_notif *notif; 761 struct iwl_mvm *mvm; 762 u32 num_bss_ifaces; 763 bool reduced_tx_power; 764 struct ieee80211_chanctx_conf *primary; 765 struct ieee80211_chanctx_conf *secondary; 766 bool primary_ll; 767}; 768 769static inline 770void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm, 771 struct ieee80211_vif *vif, 772 bool enable, int rssi) 773{ 774 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 775 776 mvmvif->bf_data.last_bt_coex_event = rssi; 777 mvmvif->bf_data.bt_coex_max_thold = 778 enable ? BT_ENABLE_REDUCED_TXPOWER_THRESHOLD : 0; 779 mvmvif->bf_data.bt_coex_min_thold = 780 enable ? BT_DISABLE_REDUCED_TXPOWER_THRESHOLD : 0; 781} 782 783/* must be called under rcu_read_lock */ 784static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac, 785 struct ieee80211_vif *vif) 786{ 787 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 788 struct iwl_bt_iterator_data *data = _data; 789 struct iwl_mvm *mvm = data->mvm; 790 struct ieee80211_chanctx_conf *chanctx_conf; 791 enum ieee80211_smps_mode smps_mode; 792 u32 bt_activity_grading; 793 int ave_rssi; 794 795 lockdep_assert_held(&mvm->mutex); 796 797 switch (vif->type) { 798 case NL80211_IFTYPE_STATION: 799 /* default smps_mode for BSS / P2P client is AUTOMATIC */ 800 smps_mode = IEEE80211_SMPS_AUTOMATIC; 801 data->num_bss_ifaces++; 802 803 /* 804 * Count unassoc BSSes, relax SMSP constraints 805 * and disable reduced Tx Power 806 */ 807 if (!vif->bss_conf.assoc) { 808 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 809 smps_mode); 810 if (iwl_mvm_bt_coex_reduced_txp(mvm, 811 mvmvif->ap_sta_id, 812 false)) 813 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 814 return; 815 } 816 break; 817 case NL80211_IFTYPE_AP: 818 /* default smps_mode for AP / GO is OFF */ 819 smps_mode = IEEE80211_SMPS_OFF; 820 if (!mvmvif->ap_ibss_active) { 821 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 822 smps_mode); 823 return; 824 } 825 826 /* the Ack / Cts kill mask must be default if AP / GO */ 827 data->reduced_tx_power = false; 828 break; 829 default: 830 return; 831 } 832 833 chanctx_conf = rcu_dereference(vif->chanctx_conf); 834 835 /* If channel context is invalid or not on 2.4GHz .. */ 836 if ((!chanctx_conf || 837 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) { 838 /* ... relax constraints and disable rssi events */ 839 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 840 smps_mode); 841 if (vif->type == NL80211_IFTYPE_STATION) 842 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 843 return; 844 } 845 846 bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading); 847 if (bt_activity_grading >= BT_HIGH_TRAFFIC) 848 smps_mode = IEEE80211_SMPS_STATIC; 849 else if (bt_activity_grading >= BT_LOW_TRAFFIC) 850 smps_mode = vif->type == NL80211_IFTYPE_AP ? 851 IEEE80211_SMPS_OFF : 852 IEEE80211_SMPS_DYNAMIC; 853 IWL_DEBUG_COEX(data->mvm, 854 "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n", 855 mvmvif->id, data->notif->bt_status, bt_activity_grading, 856 smps_mode); 857 858 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, smps_mode); 859 860 /* low latency is always primary */ 861 if (iwl_mvm_vif_low_latency(mvmvif)) { 862 data->primary_ll = true; 863 864 data->secondary = data->primary; 865 data->primary = chanctx_conf; 866 } 867 868 if (vif->type == NL80211_IFTYPE_AP) { 869 if (!mvmvif->ap_ibss_active) 870 return; 871 872 if (chanctx_conf == data->primary) 873 return; 874 875 if (!data->primary_ll) { 876 /* 877 * downgrade the current primary no matter what its 878 * type is. 879 */ 880 data->secondary = data->primary; 881 data->primary = chanctx_conf; 882 } else { 883 /* there is low latency vif - we will be secondary */ 884 data->secondary = chanctx_conf; 885 } 886 return; 887 } 888 889 /* 890 * STA / P2P Client, try to be primary if first vif. If we are in low 891 * latency mode, we are already in primary and just don't do much 892 */ 893 if (!data->primary || data->primary == chanctx_conf) 894 data->primary = chanctx_conf; 895 else if (!data->secondary) 896 /* if secondary is not NULL, it might be a GO */ 897 data->secondary = chanctx_conf; 898 899 /* don't reduce the Tx power if in loose scheme */ 900 if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT || 901 mvm->cfg->bt_shared_single_ant) { 902 data->reduced_tx_power = false; 903 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 904 return; 905 } 906 907 /* reduced Txpower only if BT is on, so ...*/ 908 if (!data->notif->bt_status) { 909 /* ... cancel reduced Tx power ... */ 910 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) 911 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 912 data->reduced_tx_power = false; 913 914 /* ... and there is no need to get reports on RSSI any more. */ 915 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 916 return; 917 } 918 919 /* try to get the avg rssi from fw */ 920 ave_rssi = mvmvif->bf_data.ave_beacon_signal; 921 922 /* if the RSSI isn't valid, fake it is very low */ 923 if (!ave_rssi) 924 ave_rssi = -100; 925 if (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) { 926 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true)) 927 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 928 929 /* 930 * bt_kill_msk can be BT_KILL_MSK_REDUCED_TXPOW only if all the 931 * BSS / P2P clients have rssi above threshold. 932 * We set the bt_kill_msk to BT_KILL_MSK_REDUCED_TXPOW before 933 * the iteration, if one interface's rssi isn't good enough, 934 * bt_kill_msk will be set to default values. 935 */ 936 } else if (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) { 937 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) 938 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 939 940 /* 941 * One interface hasn't rssi above threshold, bt_kill_msk must 942 * be set to default values. 943 */ 944 data->reduced_tx_power = false; 945 } 946 947 /* Begin to monitor the RSSI: it may influence the reduced Tx power */ 948 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi); 949} 950 951static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm) 952{ 953 struct iwl_bt_iterator_data data = { 954 .mvm = mvm, 955 .notif = &mvm->last_bt_notif, 956 .reduced_tx_power = true, 957 }; 958 struct iwl_bt_coex_ci_cmd cmd = {}; 959 u8 ci_bw_idx; 960 961 rcu_read_lock(); 962 ieee80211_iterate_active_interfaces_atomic( 963 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 964 iwl_mvm_bt_notif_iterator, &data); 965 966 if (data.primary) { 967 struct ieee80211_chanctx_conf *chan = data.primary; 968 if (WARN_ON(!chan->def.chan)) { 969 rcu_read_unlock(); 970 return; 971 } 972 973 if (chan->def.width < NL80211_CHAN_WIDTH_40) { 974 ci_bw_idx = 0; 975 cmd.co_run_bw_primary = 0; 976 } else { 977 cmd.co_run_bw_primary = 1; 978 if (chan->def.center_freq1 > 979 chan->def.chan->center_freq) 980 ci_bw_idx = 2; 981 else 982 ci_bw_idx = 1; 983 } 984 985 cmd.bt_primary_ci = 986 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; 987 cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv); 988 } 989 990 if (data.secondary) { 991 struct ieee80211_chanctx_conf *chan = data.secondary; 992 if (WARN_ON(!data.secondary->def.chan)) { 993 rcu_read_unlock(); 994 return; 995 } 996 997 if (chan->def.width < NL80211_CHAN_WIDTH_40) { 998 ci_bw_idx = 0; 999 cmd.co_run_bw_secondary = 0; 1000 } else { 1001 cmd.co_run_bw_secondary = 1; 1002 if (chan->def.center_freq1 > 1003 chan->def.chan->center_freq) 1004 ci_bw_idx = 2; 1005 else 1006 ci_bw_idx = 1; 1007 } 1008 1009 cmd.bt_secondary_ci = 1010 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; 1011 cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv); 1012 } 1013 1014 rcu_read_unlock(); 1015 1016 /* Don't spam the fw with the same command over and over */ 1017 if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) { 1018 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, CMD_SYNC, 1019 sizeof(cmd), &cmd)) 1020 IWL_ERR(mvm, "Failed to send BT_CI cmd"); 1021 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd)); 1022 } 1023 1024 /* 1025 * If there are no BSS / P2P client interfaces, reduced Tx Power is 1026 * irrelevant since it is based on the RSSI coming from the beacon. 1027 * Use BT_KILL_MSK_DEFAULT in that case. 1028 */ 1029 data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; 1030 1031 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) 1032 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); 1033} 1034 1035/* upon association, the fw will send in BT Coex notification */ 1036int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm, 1037 struct iwl_rx_cmd_buffer *rxb, 1038 struct iwl_device_cmd *dev_cmd) 1039{ 1040 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1041 struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data; 1042 1043 1044 IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n"); 1045 IWL_DEBUG_COEX(mvm, "\tBT status: %s\n", 1046 notif->bt_status ? "ON" : "OFF"); 1047 IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn); 1048 IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance); 1049 IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n", 1050 le32_to_cpu(notif->primary_ch_lut)); 1051 IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n", 1052 le32_to_cpu(notif->secondary_ch_lut)); 1053 IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n", 1054 le32_to_cpu(notif->bt_activity_grading)); 1055 IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n", 1056 notif->bt_agg_traffic_load); 1057 1058 /* remember this notification for future use: rssi fluctuations */ 1059 memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif)); 1060 1061 iwl_mvm_bt_coex_notif_handle(mvm); 1062 1063 /* 1064 * This is an async handler for a notification, returning anything other 1065 * than 0 doesn't make sense even if HCMD failed. 1066 */ 1067 return 0; 1068} 1069 1070static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac, 1071 struct ieee80211_vif *vif) 1072{ 1073 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; 1074 struct iwl_bt_iterator_data *data = _data; 1075 struct iwl_mvm *mvm = data->mvm; 1076 1077 struct ieee80211_sta *sta; 1078 struct iwl_mvm_sta *mvmsta; 1079 1080 struct ieee80211_chanctx_conf *chanctx_conf; 1081 1082 rcu_read_lock(); 1083 chanctx_conf = rcu_dereference(vif->chanctx_conf); 1084 /* If channel context is invalid or not on 2.4GHz - don't count it */ 1085 if (!chanctx_conf || 1086 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) { 1087 rcu_read_unlock(); 1088 return; 1089 } 1090 rcu_read_unlock(); 1091 1092 if (vif->type != NL80211_IFTYPE_STATION || 1093 mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) 1094 return; 1095 1096 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], 1097 lockdep_is_held(&mvm->mutex)); 1098 1099 /* This can happen if the station has been removed right now */ 1100 if (IS_ERR_OR_NULL(sta)) 1101 return; 1102 1103 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1104 1105 data->num_bss_ifaces++; 1106 1107 /* 1108 * This interface doesn't support reduced Tx power (because of low 1109 * RSSI probably), then set bt_kill_msk to default values. 1110 */ 1111 if (!mvmsta->bt_reduced_txpower) 1112 data->reduced_tx_power = false; 1113 /* else - possibly leave it to BT_KILL_MSK_REDUCED_TXPOW */ 1114} 1115 1116void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1117 enum ieee80211_rssi_event rssi_event) 1118{ 1119 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; 1120 struct iwl_bt_iterator_data data = { 1121 .mvm = mvm, 1122 .reduced_tx_power = true, 1123 }; 1124 int ret; 1125 1126 lockdep_assert_held(&mvm->mutex); 1127 1128 /* Rssi update while not associated ?! */ 1129 if (WARN_ON_ONCE(mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)) 1130 return; 1131 1132 /* No BT - reports should be disabled */ 1133 if (!mvm->last_bt_notif.bt_status) 1134 return; 1135 1136 IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid, 1137 rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW"); 1138 1139 /* 1140 * Check if rssi is good enough for reduced Tx power, but not in loose 1141 * scheme. 1142 */ 1143 if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant || 1144 iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT) 1145 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, 1146 false); 1147 else 1148 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true); 1149 1150 if (ret) 1151 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n"); 1152 1153 ieee80211_iterate_active_interfaces_atomic( 1154 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1155 iwl_mvm_bt_rssi_iterator, &data); 1156 1157 /* 1158 * If there are no BSS / P2P client interfaces, reduced Tx Power is 1159 * irrelevant since it is based on the RSSI coming from the beacon. 1160 * Use BT_KILL_MSK_DEFAULT in that case. 1161 */ 1162 data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; 1163 1164 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) 1165 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); 1166} 1167 1168#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) 1169#define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200) 1170 1171u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm, 1172 struct ieee80211_sta *sta) 1173{ 1174 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1175 enum iwl_bt_coex_lut_type lut_type; 1176 1177 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < 1178 BT_HIGH_TRAFFIC) 1179 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 1180 1181 lut_type = iwl_get_coex_type(mvm, mvmsta->vif); 1182 1183 if (lut_type == BT_COEX_LOOSE_LUT) 1184 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 1185 1186 /* tight coex, high bt traffic, reduce AGG time limit */ 1187 return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT; 1188} 1189 1190bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm, 1191 struct ieee80211_sta *sta) 1192{ 1193 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1194 1195 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < 1196 BT_HIGH_TRAFFIC) 1197 return true; 1198 1199 /* 1200 * In Tight, BT can't Rx while we Tx, so use both antennas since BT is 1201 * already killed. 1202 * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while we 1203 * Tx. 1204 */ 1205 return iwl_get_coex_type(mvm, mvmsta->vif) == BT_COEX_TIGHT_LUT; 1206} 1207 1208void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm) 1209{ 1210 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX)) 1211 return; 1212 1213 iwl_mvm_bt_coex_notif_handle(mvm); 1214} 1215 1216int iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm, 1217 struct iwl_rx_cmd_buffer *rxb, 1218 struct iwl_device_cmd *dev_cmd) 1219{ 1220 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1221 u32 ant_isolation = le32_to_cpup((void *)pkt->data); 1222 u8 __maybe_unused lower_bound, upper_bound; 1223 u8 lut; 1224 1225 struct iwl_bt_coex_cmd *bt_cmd; 1226 struct iwl_host_cmd cmd = { 1227 .id = BT_CONFIG, 1228 .len = { sizeof(*bt_cmd), }, 1229 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 1230 .flags = CMD_SYNC, 1231 }; 1232 1233 if (!IWL_MVM_BT_COEX_CORUNNING) 1234 return 0; 1235 1236 lockdep_assert_held(&mvm->mutex); 1237 1238 if (ant_isolation == mvm->last_ant_isol) 1239 return 0; 1240 1241 for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++) 1242 if (ant_isolation < antenna_coupling_ranges[lut + 1].range) 1243 break; 1244 1245 lower_bound = antenna_coupling_ranges[lut].range; 1246 1247 if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1) 1248 upper_bound = antenna_coupling_ranges[lut + 1].range; 1249 else 1250 upper_bound = antenna_coupling_ranges[lut].range; 1251 1252 IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n", 1253 ant_isolation, lower_bound, upper_bound, lut); 1254 1255 mvm->last_ant_isol = ant_isolation; 1256 1257 if (mvm->last_corun_lut == lut) 1258 return 0; 1259 1260 mvm->last_corun_lut = lut; 1261 1262 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); 1263 if (!bt_cmd) 1264 return 0; 1265 cmd.data[0] = bt_cmd; 1266 1267 bt_cmd->flags = cpu_to_le32(BT_COEX_NW); 1268 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE | 1269 BT_VALID_CORUN_LUT_20 | 1270 BT_VALID_CORUN_LUT_40); 1271 1272 /* For the moment, use the same LUT for 20GHz and 40GHz */ 1273 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[lut].lut20, 1274 sizeof(bt_cmd->bt4_corun_lut20)); 1275 1276 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[lut].lut20, 1277 sizeof(bt_cmd->bt4_corun_lut40)); 1278 1279 return 0; 1280} 1281