coex.c revision 8a0063a0512755bea4aa6c40a2501bbacefb2bba
1/****************************************************************************** 2 * 3 * This file is provided under a dual BSD/GPLv2 license. When using or 4 * redistributing this file, you may do so under either license. 5 * 6 * GPL LICENSE SUMMARY 7 * 8 * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of version 2 of the GNU General Public License as 12 * published by the Free Software Foundation. 13 * 14 * This program is distributed in the hope that it will be useful, but 15 * WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 17 * General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 22 * USA 23 * 24 * The full GNU General Public License is included in this distribution 25 * in the file called COPYING. 26 * 27 * Contact Information: 28 * Intel Linux Wireless <ilw@linux.intel.com> 29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 30 * 31 * BSD LICENSE 32 * 33 * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. 34 * All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 40 * * Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * * Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in 44 * the documentation and/or other materials provided with the 45 * distribution. 46 * * Neither the name Intel Corporation nor the names of its 47 * contributors may be used to endorse or promote products derived 48 * from this software without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 61 * 62 *****************************************************************************/ 63 64#include <linux/ieee80211.h> 65#include <linux/etherdevice.h> 66#include <net/mac80211.h> 67 68#include "fw-api-coex.h" 69#include "iwl-modparams.h" 70#include "mvm.h" 71#include "iwl-debug.h" 72 73#define EVENT_PRIO_ANT(_evt, _prio, _shrd_ant) \ 74 [(_evt)] = (((_prio) << BT_COEX_PRIO_TBL_PRIO_POS) | \ 75 ((_shrd_ant) << BT_COEX_PRIO_TBL_SHRD_ANT_POS)) 76 77static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = { 78 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB1, 79 BT_COEX_PRIO_TBL_PRIO_BYPASS, 0), 80 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB2, 81 BT_COEX_PRIO_TBL_PRIO_BYPASS, 1), 82 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW1, 83 BT_COEX_PRIO_TBL_PRIO_LOW, 0), 84 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW2, 85 BT_COEX_PRIO_TBL_PRIO_LOW, 1), 86 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH1, 87 BT_COEX_PRIO_TBL_PRIO_HIGH, 0), 88 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH2, 89 BT_COEX_PRIO_TBL_PRIO_HIGH, 1), 90 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_DTIM, 91 BT_COEX_PRIO_TBL_DISABLED, 0), 92 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN52, 93 BT_COEX_PRIO_TBL_PRIO_COEX_OFF, 0), 94 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN24, 95 BT_COEX_PRIO_TBL_PRIO_COEX_ON, 0), 96 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_IDLE, 97 BT_COEX_PRIO_TBL_PRIO_COEX_IDLE, 0), 98 0, 0, 0, 0, 0, 0, 99}; 100 101#undef EVENT_PRIO_ANT 102 103#define BT_ENABLE_REDUCED_TXPOWER_THRESHOLD (-62) 104#define BT_DISABLE_REDUCED_TXPOWER_THRESHOLD (-65) 105#define BT_ANTENNA_COUPLING_THRESHOLD (30) 106 107int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm) 108{ 109 return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, CMD_SYNC, 110 sizeof(struct iwl_bt_coex_prio_tbl_cmd), 111 &iwl_bt_prio_tbl); 112} 113 114const u32 iwl_bt_ack_kill_msk[BT_KILL_MSK_MAX] = { 115 [BT_KILL_MSK_DEFAULT] = 0xffff0000, 116 [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff, 117 [BT_KILL_MSK_REDUCED_TXPOW] = 0, 118}; 119 120const u32 iwl_bt_cts_kill_msk[BT_KILL_MSK_MAX] = { 121 [BT_KILL_MSK_DEFAULT] = 0xffff0000, 122 [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff, 123 [BT_KILL_MSK_REDUCED_TXPOW] = 0, 124}; 125 126static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = { 127 cpu_to_le32(0xf0f0f0f0), 128 cpu_to_le32(0xc0c0c0c0), 129 cpu_to_le32(0xfcfcfcfc), 130 cpu_to_le32(0xff00ff00), 131}; 132 133static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = { 134 { 135 cpu_to_le32(0x40000000), 136 cpu_to_le32(0x00000000), 137 cpu_to_le32(0x44000000), 138 cpu_to_le32(0x00000000), 139 cpu_to_le32(0x40000000), 140 cpu_to_le32(0x00000000), 141 cpu_to_le32(0x44000000), 142 cpu_to_le32(0x00000000), 143 cpu_to_le32(0xc0004000), 144 cpu_to_le32(0xf0005000), 145 cpu_to_le32(0xc0004000), 146 cpu_to_le32(0xf0005000), 147 }, 148 { 149 cpu_to_le32(0x40000000), 150 cpu_to_le32(0x00000000), 151 cpu_to_le32(0x44000000), 152 cpu_to_le32(0x00000000), 153 cpu_to_le32(0x40000000), 154 cpu_to_le32(0x00000000), 155 cpu_to_le32(0x44000000), 156 cpu_to_le32(0x00000000), 157 cpu_to_le32(0xc0004000), 158 cpu_to_le32(0xf0005000), 159 cpu_to_le32(0xc0004000), 160 cpu_to_le32(0xf0005000), 161 }, 162 { 163 cpu_to_le32(0x40000000), 164 cpu_to_le32(0x00000000), 165 cpu_to_le32(0x44000000), 166 cpu_to_le32(0x00000000), 167 cpu_to_le32(0x40000000), 168 cpu_to_le32(0x00000000), 169 cpu_to_le32(0x44000000), 170 cpu_to_le32(0x00000000), 171 cpu_to_le32(0xc0004000), 172 cpu_to_le32(0xf0005000), 173 cpu_to_le32(0xc0004000), 174 cpu_to_le32(0xf0005000), 175 }, 176}; 177 178static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = { 179 { 180 /* Tight */ 181 cpu_to_le32(0xaaaaaaaa), 182 cpu_to_le32(0xaaaaaaaa), 183 cpu_to_le32(0xaeaaaaaa), 184 cpu_to_le32(0xaaaaaaaa), 185 cpu_to_le32(0xcc00ff28), 186 cpu_to_le32(0x0000aaaa), 187 cpu_to_le32(0xcc00aaaa), 188 cpu_to_le32(0x0000aaaa), 189 cpu_to_le32(0xc0004000), 190 cpu_to_le32(0x00000000), 191 cpu_to_le32(0xf0005000), 192 cpu_to_le32(0xf0005000), 193 }, 194 { 195 /* Loose */ 196 cpu_to_le32(0xaaaaaaaa), 197 cpu_to_le32(0xaaaaaaaa), 198 cpu_to_le32(0xaaaaaaaa), 199 cpu_to_le32(0xaaaaaaaa), 200 cpu_to_le32(0xcc00ff28), 201 cpu_to_le32(0x0000aaaa), 202 cpu_to_le32(0xcc00aaaa), 203 cpu_to_le32(0x0000aaaa), 204 cpu_to_le32(0x00000000), 205 cpu_to_le32(0x00000000), 206 cpu_to_le32(0xf0005000), 207 cpu_to_le32(0xf0005000), 208 }, 209 { 210 /* Tx Tx disabled */ 211 cpu_to_le32(0xaaaaaaaa), 212 cpu_to_le32(0xaaaaaaaa), 213 cpu_to_le32(0xaaaaaaaa), 214 cpu_to_le32(0xaaaaaaaa), 215 cpu_to_le32(0xcc00ff28), 216 cpu_to_le32(0x0000aaaa), 217 cpu_to_le32(0xcc00aaaa), 218 cpu_to_le32(0x0000aaaa), 219 cpu_to_le32(0xC0004000), 220 cpu_to_le32(0xC0004000), 221 cpu_to_le32(0xF0005000), 222 cpu_to_le32(0xF0005000), 223 }, 224}; 225 226/* 20MHz / 40MHz below / 40Mhz above*/ 227static const __le64 iwl_ci_mask[][3] = { 228 /* dummy entry for channel 0 */ 229 {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)}, 230 { 231 cpu_to_le64(0x0000001FFFULL), 232 cpu_to_le64(0x0ULL), 233 cpu_to_le64(0x00007FFFFFULL), 234 }, 235 { 236 cpu_to_le64(0x000000FFFFULL), 237 cpu_to_le64(0x0ULL), 238 cpu_to_le64(0x0003FFFFFFULL), 239 }, 240 { 241 cpu_to_le64(0x000003FFFCULL), 242 cpu_to_le64(0x0ULL), 243 cpu_to_le64(0x000FFFFFFCULL), 244 }, 245 { 246 cpu_to_le64(0x00001FFFE0ULL), 247 cpu_to_le64(0x0ULL), 248 cpu_to_le64(0x007FFFFFE0ULL), 249 }, 250 { 251 cpu_to_le64(0x00007FFF80ULL), 252 cpu_to_le64(0x00007FFFFFULL), 253 cpu_to_le64(0x01FFFFFF80ULL), 254 }, 255 { 256 cpu_to_le64(0x0003FFFC00ULL), 257 cpu_to_le64(0x0003FFFFFFULL), 258 cpu_to_le64(0x0FFFFFFC00ULL), 259 }, 260 { 261 cpu_to_le64(0x000FFFF000ULL), 262 cpu_to_le64(0x000FFFFFFCULL), 263 cpu_to_le64(0x3FFFFFF000ULL), 264 }, 265 { 266 cpu_to_le64(0x007FFF8000ULL), 267 cpu_to_le64(0x007FFFFFE0ULL), 268 cpu_to_le64(0xFFFFFF8000ULL), 269 }, 270 { 271 cpu_to_le64(0x01FFFE0000ULL), 272 cpu_to_le64(0x01FFFFFF80ULL), 273 cpu_to_le64(0xFFFFFE0000ULL), 274 }, 275 { 276 cpu_to_le64(0x0FFFF00000ULL), 277 cpu_to_le64(0x0FFFFFFC00ULL), 278 cpu_to_le64(0x0ULL), 279 }, 280 { 281 cpu_to_le64(0x3FFFC00000ULL), 282 cpu_to_le64(0x3FFFFFF000ULL), 283 cpu_to_le64(0x0) 284 }, 285 { 286 cpu_to_le64(0xFFFE000000ULL), 287 cpu_to_le64(0xFFFFFF8000ULL), 288 cpu_to_le64(0x0) 289 }, 290 { 291 cpu_to_le64(0xFFF8000000ULL), 292 cpu_to_le64(0xFFFFFE0000ULL), 293 cpu_to_le64(0x0) 294 }, 295 { 296 cpu_to_le64(0xFFC0000000ULL), 297 cpu_to_le64(0x0ULL), 298 cpu_to_le64(0x0ULL) 299 }, 300}; 301 302static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = { 303 cpu_to_le32(0x22002200), 304 cpu_to_le32(0x33113311), 305}; 306 307struct corunning_block_luts { 308 u8 range; 309 __le32 lut20[BT_COEX_CORUN_LUT_SIZE]; 310}; 311 312/* 313 * Ranges for the antenna coupling calibration / co-running block LUT: 314 * LUT0: [ 0, 12[ 315 * LUT1: [12, 20[ 316 * LUT2: [20, 21[ 317 * LUT3: [21, 23[ 318 * LUT4: [23, 27[ 319 * LUT5: [27, 30[ 320 * LUT6: [30, 32[ 321 * LUT7: [32, 33[ 322 * LUT8: [33, - [ 323 */ 324static const struct corunning_block_luts antenna_coupling_ranges[] = { 325 { 326 .range = 0, 327 .lut20 = { 328 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 329 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 330 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 331 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 332 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 333 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 334 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 335 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 336 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 337 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 338 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 339 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 340 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 341 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 342 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 343 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 344 }, 345 }, 346 { 347 .range = 12, 348 .lut20 = { 349 cpu_to_le32(0x00000001), cpu_to_le32(0x00000000), 350 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 351 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 352 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 353 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 354 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 355 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 356 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 357 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 358 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 359 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 360 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 361 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 362 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 363 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 364 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 365 }, 366 }, 367 { 368 .range = 20, 369 .lut20 = { 370 cpu_to_le32(0x00000002), cpu_to_le32(0x00000000), 371 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 372 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 373 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 374 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 375 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 376 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 377 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 378 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 379 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 380 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 381 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 382 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 383 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 384 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 385 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 386 }, 387 }, 388 { 389 .range = 21, 390 .lut20 = { 391 cpu_to_le32(0x00000003), cpu_to_le32(0x00000000), 392 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 393 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 394 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 395 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 396 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 397 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 398 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 399 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 400 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 401 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 402 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 403 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 404 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 405 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 406 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 407 }, 408 }, 409 { 410 .range = 23, 411 .lut20 = { 412 cpu_to_le32(0x00000004), cpu_to_le32(0x00000000), 413 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 414 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 415 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 416 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 417 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 418 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 419 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 420 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 421 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 422 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 423 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 424 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 425 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 426 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 427 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 428 }, 429 }, 430 { 431 .range = 27, 432 .lut20 = { 433 cpu_to_le32(0x00000005), cpu_to_le32(0x00000000), 434 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 435 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 436 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 437 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 438 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 439 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 440 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 441 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 442 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 443 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 444 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 445 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 446 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 447 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 448 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 449 }, 450 }, 451 { 452 .range = 30, 453 .lut20 = { 454 cpu_to_le32(0x00000006), cpu_to_le32(0x00000000), 455 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 456 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 457 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 458 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 459 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 460 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 461 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 462 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 463 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 464 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 465 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 466 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 467 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 468 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 469 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 470 }, 471 }, 472 { 473 .range = 32, 474 .lut20 = { 475 cpu_to_le32(0x00000007), cpu_to_le32(0x00000000), 476 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 477 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 478 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 479 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 480 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 481 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 482 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 483 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 484 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 485 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 486 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 487 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 488 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 489 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 490 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 491 }, 492 }, 493 { 494 .range = 33, 495 .lut20 = { 496 cpu_to_le32(0x00000008), cpu_to_le32(0x00000000), 497 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 498 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 499 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 500 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 501 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 502 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 503 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 504 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 505 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 506 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 507 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 508 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 509 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 510 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 511 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 512 }, 513 }, 514}; 515 516static enum iwl_bt_coex_lut_type 517iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif) 518{ 519 struct ieee80211_chanctx_conf *chanctx_conf; 520 enum iwl_bt_coex_lut_type ret; 521 u16 phy_ctx_id; 522 523 /* 524 * Checking that we hold mvm->mutex is a good idea, but the rate 525 * control can't acquire the mutex since it runs in Tx path. 526 * So this is racy in that case, but in the worst case, the AMPDU 527 * size limit will be wrong for a short time which is not a big 528 * issue. 529 */ 530 531 rcu_read_lock(); 532 533 chanctx_conf = rcu_dereference(vif->chanctx_conf); 534 535 if (!chanctx_conf || 536 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) { 537 rcu_read_unlock(); 538 return BT_COEX_LOOSE_LUT; 539 } 540 541 ret = BT_COEX_TX_DIS_LUT; 542 543 if (mvm->cfg->bt_shared_single_ant) { 544 rcu_read_unlock(); 545 return ret; 546 } 547 548 phy_ctx_id = *((u16 *)chanctx_conf->drv_priv); 549 550 if (mvm->last_bt_ci_cmd.primary_ch_phy_id == phy_ctx_id) 551 ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut); 552 else if (mvm->last_bt_ci_cmd.secondary_ch_phy_id == phy_ctx_id) 553 ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut); 554 /* else - default = TX TX disallowed */ 555 556 rcu_read_unlock(); 557 558 return ret; 559} 560 561int iwl_send_bt_init_conf(struct iwl_mvm *mvm) 562{ 563 struct iwl_bt_coex_cmd *bt_cmd; 564 struct iwl_host_cmd cmd = { 565 .id = BT_CONFIG, 566 .len = { sizeof(*bt_cmd), }, 567 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 568 .flags = CMD_SYNC, 569 }; 570 int ret; 571 u32 flags; 572 573 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); 574 if (!bt_cmd) 575 return -ENOMEM; 576 cmd.data[0] = bt_cmd; 577 578 bt_cmd->max_kill = 5; 579 bt_cmd->bt4_antenna_isolation_thr = BT_ANTENNA_COUPLING_THRESHOLD; 580 bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling; 581 bt_cmd->bt4_tx_tx_delta_freq_thr = 15; 582 bt_cmd->bt4_tx_rx_max_freq0 = 15; 583 584 flags = iwlwifi_mod_params.bt_coex_active ? 585 BT_COEX_NW : BT_COEX_DISABLE; 586 bt_cmd->flags = cpu_to_le32(flags); 587 588 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE | 589 BT_VALID_BT_PRIO_BOOST | 590 BT_VALID_MAX_KILL | 591 BT_VALID_3W_TMRS | 592 BT_VALID_KILL_ACK | 593 BT_VALID_KILL_CTS | 594 BT_VALID_REDUCED_TX_POWER | 595 BT_VALID_LUT | 596 BT_VALID_WIFI_RX_SW_PRIO_BOOST | 597 BT_VALID_WIFI_TX_SW_PRIO_BOOST | 598 BT_VALID_ANT_ISOLATION | 599 BT_VALID_ANT_ISOLATION_THRS | 600 BT_VALID_TXTX_DELTA_FREQ_THRS | 601 BT_VALID_TXRX_MAX_FREQ_0 | 602 BT_VALID_SYNC_TO_SCO); 603 604 if (IWL_MVM_BT_COEX_SYNC2SCO) 605 bt_cmd->flags |= cpu_to_le32(BT_COEX_SYNC2SCO); 606 607 if (IWL_MVM_BT_COEX_CORUNNING) { 608 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_CORUN_LUT_20 | 609 BT_VALID_CORUN_LUT_40); 610 bt_cmd->flags |= cpu_to_le32(BT_COEX_CORUNNING); 611 } 612 613 if (IWL_MVM_BT_COEX_MPLUT) { 614 bt_cmd->flags |= cpu_to_le32(BT_COEX_MPLUT); 615 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_MULTI_PRIO_LUT); 616 } 617 618 if (mvm->cfg->bt_shared_single_ant) 619 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant, 620 sizeof(iwl_single_shared_ant)); 621 else 622 memcpy(&bt_cmd->decision_lut, iwl_combined_lookup, 623 sizeof(iwl_combined_lookup)); 624 625 /* Take first Co-running block LUT to get started */ 626 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[0].lut20, 627 sizeof(bt_cmd->bt4_corun_lut20)); 628 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[0].lut20, 629 sizeof(bt_cmd->bt4_corun_lut40)); 630 631 memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost, 632 sizeof(iwl_bt_prio_boost)); 633 memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut, 634 sizeof(iwl_bt_mprio_lut)); 635 bt_cmd->kill_ack_msk = 636 cpu_to_le32(iwl_bt_ack_kill_msk[BT_KILL_MSK_DEFAULT]); 637 bt_cmd->kill_cts_msk = 638 cpu_to_le32(iwl_bt_cts_kill_msk[BT_KILL_MSK_DEFAULT]); 639 640 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 641 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 642 643 ret = iwl_mvm_send_cmd(mvm, &cmd); 644 645 kfree(bt_cmd); 646 return ret; 647} 648 649static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm, 650 bool reduced_tx_power) 651{ 652 enum iwl_bt_kill_msk bt_kill_msk; 653 struct iwl_bt_coex_cmd *bt_cmd; 654 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif; 655 struct iwl_host_cmd cmd = { 656 .id = BT_CONFIG, 657 .data[0] = &bt_cmd, 658 .len = { sizeof(*bt_cmd), }, 659 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 660 .flags = CMD_SYNC, 661 }; 662 int ret = 0; 663 664 lockdep_assert_held(&mvm->mutex); 665 666 if (reduced_tx_power) { 667 /* Reduced Tx power has precedence on the type of the profile */ 668 bt_kill_msk = BT_KILL_MSK_REDUCED_TXPOW; 669 } else { 670 /* Low latency BT profile is active: give higher prio to BT */ 671 if (BT_MBOX_MSG(notif, 3, SCO_STATE) || 672 BT_MBOX_MSG(notif, 3, A2DP_STATE) || 673 BT_MBOX_MSG(notif, 3, SNIFF_STATE)) 674 bt_kill_msk = BT_KILL_MSK_SCO_HID_A2DP; 675 else 676 bt_kill_msk = BT_KILL_MSK_DEFAULT; 677 } 678 679 IWL_DEBUG_COEX(mvm, 680 "Update kill_msk: %d - SCO %sactive A2DP %sactive SNIFF %sactive\n", 681 bt_kill_msk, 682 BT_MBOX_MSG(notif, 3, SCO_STATE) ? "" : "in", 683 BT_MBOX_MSG(notif, 3, A2DP_STATE) ? "" : "in", 684 BT_MBOX_MSG(notif, 3, SNIFF_STATE) ? "" : "in"); 685 686 /* Don't send HCMD if there is no update */ 687 if (bt_kill_msk == mvm->bt_kill_msk) 688 return 0; 689 690 mvm->bt_kill_msk = bt_kill_msk; 691 692 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); 693 if (!bt_cmd) 694 return -ENOMEM; 695 cmd.data[0] = bt_cmd; 696 bt_cmd->flags = cpu_to_le32(BT_COEX_NW); 697 698 bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ack_kill_msk[bt_kill_msk]); 699 bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_cts_kill_msk[bt_kill_msk]); 700 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE | 701 BT_VALID_KILL_ACK | 702 BT_VALID_KILL_CTS); 703 704 IWL_DEBUG_COEX(mvm, "ACK Kill msk = 0x%08x, CTS Kill msk = 0x%08x\n", 705 iwl_bt_ack_kill_msk[bt_kill_msk], 706 iwl_bt_cts_kill_msk[bt_kill_msk]); 707 708 ret = iwl_mvm_send_cmd(mvm, &cmd); 709 710 kfree(bt_cmd); 711 return ret; 712} 713 714int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id, bool enable) 715{ 716 struct iwl_bt_coex_cmd *bt_cmd; 717 /* Send ASYNC since this can be sent from an atomic context */ 718 struct iwl_host_cmd cmd = { 719 .id = BT_CONFIG, 720 .len = { sizeof(*bt_cmd), }, 721 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 722 .flags = CMD_ASYNC, 723 }; 724 struct iwl_mvm_sta *mvmsta; 725 int ret; 726 727 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 728 if (!mvmsta) 729 return 0; 730 731 /* nothing to do */ 732 if (mvmsta->bt_reduced_txpower_dbg || 733 mvmsta->bt_reduced_txpower == enable) 734 return 0; 735 736 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC); 737 if (!bt_cmd) 738 return -ENOMEM; 739 cmd.data[0] = bt_cmd; 740 bt_cmd->flags = cpu_to_le32(BT_COEX_NW); 741 742 bt_cmd->valid_bit_msk = 743 cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER); 744 bt_cmd->bt_reduced_tx_power = sta_id; 745 746 if (enable) 747 bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT; 748 749 IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n", 750 enable ? "en" : "dis", sta_id); 751 752 mvmsta->bt_reduced_txpower = enable; 753 754 ret = iwl_mvm_send_cmd(mvm, &cmd); 755 756 kfree(bt_cmd); 757 return ret; 758} 759 760struct iwl_bt_iterator_data { 761 struct iwl_bt_coex_profile_notif *notif; 762 struct iwl_mvm *mvm; 763 u32 num_bss_ifaces; 764 bool reduced_tx_power; 765 struct ieee80211_chanctx_conf *primary; 766 struct ieee80211_chanctx_conf *secondary; 767 bool primary_ll; 768}; 769 770static inline 771void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm, 772 struct ieee80211_vif *vif, 773 bool enable, int rssi) 774{ 775 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 776 777 mvmvif->bf_data.last_bt_coex_event = rssi; 778 mvmvif->bf_data.bt_coex_max_thold = 779 enable ? BT_ENABLE_REDUCED_TXPOWER_THRESHOLD : 0; 780 mvmvif->bf_data.bt_coex_min_thold = 781 enable ? BT_DISABLE_REDUCED_TXPOWER_THRESHOLD : 0; 782} 783 784/* must be called under rcu_read_lock */ 785static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac, 786 struct ieee80211_vif *vif) 787{ 788 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 789 struct iwl_bt_iterator_data *data = _data; 790 struct iwl_mvm *mvm = data->mvm; 791 struct ieee80211_chanctx_conf *chanctx_conf; 792 enum ieee80211_smps_mode smps_mode; 793 u32 bt_activity_grading; 794 int ave_rssi; 795 796 lockdep_assert_held(&mvm->mutex); 797 798 switch (vif->type) { 799 case NL80211_IFTYPE_STATION: 800 /* default smps_mode for BSS / P2P client is AUTOMATIC */ 801 smps_mode = IEEE80211_SMPS_AUTOMATIC; 802 data->num_bss_ifaces++; 803 804 /* 805 * Count unassoc BSSes, relax SMSP constraints 806 * and disable reduced Tx Power 807 */ 808 if (!vif->bss_conf.assoc) { 809 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 810 smps_mode); 811 if (iwl_mvm_bt_coex_reduced_txp(mvm, 812 mvmvif->ap_sta_id, 813 false)) 814 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 815 return; 816 } 817 break; 818 case NL80211_IFTYPE_AP: 819 /* default smps_mode for AP / GO is OFF */ 820 smps_mode = IEEE80211_SMPS_OFF; 821 if (!mvmvif->ap_ibss_active) { 822 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 823 smps_mode); 824 return; 825 } 826 827 /* the Ack / Cts kill mask must be default if AP / GO */ 828 data->reduced_tx_power = false; 829 break; 830 default: 831 return; 832 } 833 834 chanctx_conf = rcu_dereference(vif->chanctx_conf); 835 836 /* If channel context is invalid or not on 2.4GHz .. */ 837 if ((!chanctx_conf || 838 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) { 839 /* ... relax constraints and disable rssi events */ 840 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 841 smps_mode); 842 if (vif->type == NL80211_IFTYPE_STATION) 843 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 844 return; 845 } 846 847 bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading); 848 if (bt_activity_grading >= BT_HIGH_TRAFFIC) 849 smps_mode = IEEE80211_SMPS_STATIC; 850 else if (bt_activity_grading >= BT_LOW_TRAFFIC) 851 smps_mode = vif->type == NL80211_IFTYPE_AP ? 852 IEEE80211_SMPS_OFF : 853 IEEE80211_SMPS_DYNAMIC; 854 IWL_DEBUG_COEX(data->mvm, 855 "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n", 856 mvmvif->id, data->notif->bt_status, bt_activity_grading, 857 smps_mode); 858 859 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, smps_mode); 860 861 /* low latency is always primary */ 862 if (iwl_mvm_vif_low_latency(mvmvif)) { 863 data->primary_ll = true; 864 865 data->secondary = data->primary; 866 data->primary = chanctx_conf; 867 } 868 869 if (vif->type == NL80211_IFTYPE_AP) { 870 if (!mvmvif->ap_ibss_active) 871 return; 872 873 if (chanctx_conf == data->primary) 874 return; 875 876 if (!data->primary_ll) { 877 /* 878 * downgrade the current primary no matter what its 879 * type is. 880 */ 881 data->secondary = data->primary; 882 data->primary = chanctx_conf; 883 } else { 884 /* there is low latency vif - we will be secondary */ 885 data->secondary = chanctx_conf; 886 } 887 return; 888 } 889 890 /* 891 * STA / P2P Client, try to be primary if first vif. If we are in low 892 * latency mode, we are already in primary and just don't do much 893 */ 894 if (!data->primary || data->primary == chanctx_conf) 895 data->primary = chanctx_conf; 896 else if (!data->secondary) 897 /* if secondary is not NULL, it might be a GO */ 898 data->secondary = chanctx_conf; 899 900 /* don't reduce the Tx power if in loose scheme */ 901 if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT || 902 mvm->cfg->bt_shared_single_ant) { 903 data->reduced_tx_power = false; 904 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 905 return; 906 } 907 908 /* reduced Txpower only if BT is on, so ...*/ 909 if (!data->notif->bt_status) { 910 /* ... cancel reduced Tx power ... */ 911 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) 912 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 913 data->reduced_tx_power = false; 914 915 /* ... and there is no need to get reports on RSSI any more. */ 916 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 917 return; 918 } 919 920 /* try to get the avg rssi from fw */ 921 ave_rssi = mvmvif->bf_data.ave_beacon_signal; 922 923 /* if the RSSI isn't valid, fake it is very low */ 924 if (!ave_rssi) 925 ave_rssi = -100; 926 if (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) { 927 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true)) 928 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 929 930 /* 931 * bt_kill_msk can be BT_KILL_MSK_REDUCED_TXPOW only if all the 932 * BSS / P2P clients have rssi above threshold. 933 * We set the bt_kill_msk to BT_KILL_MSK_REDUCED_TXPOW before 934 * the iteration, if one interface's rssi isn't good enough, 935 * bt_kill_msk will be set to default values. 936 */ 937 } else if (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) { 938 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) 939 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 940 941 /* 942 * One interface hasn't rssi above threshold, bt_kill_msk must 943 * be set to default values. 944 */ 945 data->reduced_tx_power = false; 946 } 947 948 /* Begin to monitor the RSSI: it may influence the reduced Tx power */ 949 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi); 950} 951 952static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm) 953{ 954 struct iwl_bt_iterator_data data = { 955 .mvm = mvm, 956 .notif = &mvm->last_bt_notif, 957 .reduced_tx_power = true, 958 }; 959 struct iwl_bt_coex_ci_cmd cmd = {}; 960 u8 ci_bw_idx; 961 962 rcu_read_lock(); 963 ieee80211_iterate_active_interfaces_atomic( 964 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 965 iwl_mvm_bt_notif_iterator, &data); 966 967 if (data.primary) { 968 struct ieee80211_chanctx_conf *chan = data.primary; 969 if (WARN_ON(!chan->def.chan)) { 970 rcu_read_unlock(); 971 return; 972 } 973 974 if (chan->def.width < NL80211_CHAN_WIDTH_40) { 975 ci_bw_idx = 0; 976 cmd.co_run_bw_primary = 0; 977 } else { 978 cmd.co_run_bw_primary = 1; 979 if (chan->def.center_freq1 > 980 chan->def.chan->center_freq) 981 ci_bw_idx = 2; 982 else 983 ci_bw_idx = 1; 984 } 985 986 cmd.bt_primary_ci = 987 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; 988 cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv); 989 } 990 991 if (data.secondary) { 992 struct ieee80211_chanctx_conf *chan = data.secondary; 993 if (WARN_ON(!data.secondary->def.chan)) { 994 rcu_read_unlock(); 995 return; 996 } 997 998 if (chan->def.width < NL80211_CHAN_WIDTH_40) { 999 ci_bw_idx = 0; 1000 cmd.co_run_bw_secondary = 0; 1001 } else { 1002 cmd.co_run_bw_secondary = 1; 1003 if (chan->def.center_freq1 > 1004 chan->def.chan->center_freq) 1005 ci_bw_idx = 2; 1006 else 1007 ci_bw_idx = 1; 1008 } 1009 1010 cmd.bt_secondary_ci = 1011 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; 1012 cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv); 1013 } 1014 1015 rcu_read_unlock(); 1016 1017 /* Don't spam the fw with the same command over and over */ 1018 if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) { 1019 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, CMD_SYNC, 1020 sizeof(cmd), &cmd)) 1021 IWL_ERR(mvm, "Failed to send BT_CI cmd"); 1022 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd)); 1023 } 1024 1025 /* 1026 * If there are no BSS / P2P client interfaces, reduced Tx Power is 1027 * irrelevant since it is based on the RSSI coming from the beacon. 1028 * Use BT_KILL_MSK_DEFAULT in that case. 1029 */ 1030 data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; 1031 1032 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) 1033 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); 1034} 1035 1036/* upon association, the fw will send in BT Coex notification */ 1037int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm, 1038 struct iwl_rx_cmd_buffer *rxb, 1039 struct iwl_device_cmd *dev_cmd) 1040{ 1041 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1042 struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data; 1043 1044 1045 IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n"); 1046 IWL_DEBUG_COEX(mvm, "\tBT status: %s\n", 1047 notif->bt_status ? "ON" : "OFF"); 1048 IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn); 1049 IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance); 1050 IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n", 1051 le32_to_cpu(notif->primary_ch_lut)); 1052 IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n", 1053 le32_to_cpu(notif->secondary_ch_lut)); 1054 IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n", 1055 le32_to_cpu(notif->bt_activity_grading)); 1056 IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n", 1057 notif->bt_agg_traffic_load); 1058 1059 /* remember this notification for future use: rssi fluctuations */ 1060 memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif)); 1061 1062 iwl_mvm_bt_coex_notif_handle(mvm); 1063 1064 /* 1065 * This is an async handler for a notification, returning anything other 1066 * than 0 doesn't make sense even if HCMD failed. 1067 */ 1068 return 0; 1069} 1070 1071static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac, 1072 struct ieee80211_vif *vif) 1073{ 1074 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; 1075 struct iwl_bt_iterator_data *data = _data; 1076 struct iwl_mvm *mvm = data->mvm; 1077 1078 struct ieee80211_sta *sta; 1079 struct iwl_mvm_sta *mvmsta; 1080 1081 struct ieee80211_chanctx_conf *chanctx_conf; 1082 1083 rcu_read_lock(); 1084 chanctx_conf = rcu_dereference(vif->chanctx_conf); 1085 /* If channel context is invalid or not on 2.4GHz - don't count it */ 1086 if (!chanctx_conf || 1087 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) { 1088 rcu_read_unlock(); 1089 return; 1090 } 1091 rcu_read_unlock(); 1092 1093 if (vif->type != NL80211_IFTYPE_STATION || 1094 mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) 1095 return; 1096 1097 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], 1098 lockdep_is_held(&mvm->mutex)); 1099 1100 /* This can happen if the station has been removed right now */ 1101 if (IS_ERR_OR_NULL(sta)) 1102 return; 1103 1104 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1105 1106 data->num_bss_ifaces++; 1107 1108 /* 1109 * This interface doesn't support reduced Tx power (because of low 1110 * RSSI probably), then set bt_kill_msk to default values. 1111 */ 1112 if (!mvmsta->bt_reduced_txpower) 1113 data->reduced_tx_power = false; 1114 /* else - possibly leave it to BT_KILL_MSK_REDUCED_TXPOW */ 1115} 1116 1117void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1118 enum ieee80211_rssi_event rssi_event) 1119{ 1120 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; 1121 struct iwl_bt_iterator_data data = { 1122 .mvm = mvm, 1123 .reduced_tx_power = true, 1124 }; 1125 int ret; 1126 1127 lockdep_assert_held(&mvm->mutex); 1128 1129 /* 1130 * Rssi update while not associated - can happen since the statistics 1131 * are handled asynchronously 1132 */ 1133 if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) 1134 return; 1135 1136 /* No BT - reports should be disabled */ 1137 if (!mvm->last_bt_notif.bt_status) 1138 return; 1139 1140 IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid, 1141 rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW"); 1142 1143 /* 1144 * Check if rssi is good enough for reduced Tx power, but not in loose 1145 * scheme. 1146 */ 1147 if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant || 1148 iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT) 1149 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, 1150 false); 1151 else 1152 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true); 1153 1154 if (ret) 1155 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n"); 1156 1157 ieee80211_iterate_active_interfaces_atomic( 1158 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1159 iwl_mvm_bt_rssi_iterator, &data); 1160 1161 /* 1162 * If there are no BSS / P2P client interfaces, reduced Tx Power is 1163 * irrelevant since it is based on the RSSI coming from the beacon. 1164 * Use BT_KILL_MSK_DEFAULT in that case. 1165 */ 1166 data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; 1167 1168 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) 1169 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); 1170} 1171 1172#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) 1173#define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200) 1174 1175u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm, 1176 struct ieee80211_sta *sta) 1177{ 1178 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1179 enum iwl_bt_coex_lut_type lut_type; 1180 1181 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < 1182 BT_HIGH_TRAFFIC) 1183 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 1184 1185 lut_type = iwl_get_coex_type(mvm, mvmsta->vif); 1186 1187 if (lut_type == BT_COEX_LOOSE_LUT) 1188 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 1189 1190 /* tight coex, high bt traffic, reduce AGG time limit */ 1191 return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT; 1192} 1193 1194bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm, 1195 struct ieee80211_sta *sta) 1196{ 1197 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1198 1199 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < 1200 BT_HIGH_TRAFFIC) 1201 return true; 1202 1203 /* 1204 * In Tight, BT can't Rx while we Tx, so use both antennas since BT is 1205 * already killed. 1206 * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while we 1207 * Tx. 1208 */ 1209 return iwl_get_coex_type(mvm, mvmsta->vif) == BT_COEX_TIGHT_LUT; 1210} 1211 1212bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm, 1213 enum ieee80211_band band) 1214{ 1215 u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading); 1216 1217 if (band != IEEE80211_BAND_2GHZ) 1218 return false; 1219 1220 return bt_activity >= BT_LOW_TRAFFIC; 1221} 1222 1223u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr, 1224 struct ieee80211_tx_info *info, u8 ac) 1225{ 1226 __le16 fc = hdr->frame_control; 1227 1228 if (info->band != IEEE80211_BAND_2GHZ) 1229 return 0; 1230 1231 if (unlikely(mvm->bt_tx_prio)) 1232 return mvm->bt_tx_prio - 1; 1233 1234 /* High prio packet (wrt. BT coex) if it is EAPOL, MCAST or MGMT */ 1235 if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO || 1236 is_multicast_ether_addr(hdr->addr1) || 1237 ieee80211_is_ctl(fc) || ieee80211_is_mgmt(fc) || 1238 ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc)) 1239 return 3; 1240 1241 switch (ac) { 1242 case IEEE80211_AC_BE: 1243 return 1; 1244 case IEEE80211_AC_VO: 1245 return 3; 1246 case IEEE80211_AC_VI: 1247 return 2; 1248 default: 1249 break; 1250 } 1251 1252 return 0; 1253} 1254 1255void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm) 1256{ 1257 iwl_mvm_bt_coex_notif_handle(mvm); 1258} 1259 1260int iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm, 1261 struct iwl_rx_cmd_buffer *rxb, 1262 struct iwl_device_cmd *dev_cmd) 1263{ 1264 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1265 u32 ant_isolation = le32_to_cpup((void *)pkt->data); 1266 u8 __maybe_unused lower_bound, upper_bound; 1267 u8 lut; 1268 1269 struct iwl_bt_coex_cmd *bt_cmd; 1270 struct iwl_host_cmd cmd = { 1271 .id = BT_CONFIG, 1272 .len = { sizeof(*bt_cmd), }, 1273 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 1274 .flags = CMD_SYNC, 1275 }; 1276 1277 if (!IWL_MVM_BT_COEX_CORUNNING) 1278 return 0; 1279 1280 lockdep_assert_held(&mvm->mutex); 1281 1282 if (ant_isolation == mvm->last_ant_isol) 1283 return 0; 1284 1285 for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++) 1286 if (ant_isolation < antenna_coupling_ranges[lut + 1].range) 1287 break; 1288 1289 lower_bound = antenna_coupling_ranges[lut].range; 1290 1291 if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1) 1292 upper_bound = antenna_coupling_ranges[lut + 1].range; 1293 else 1294 upper_bound = antenna_coupling_ranges[lut].range; 1295 1296 IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n", 1297 ant_isolation, lower_bound, upper_bound, lut); 1298 1299 mvm->last_ant_isol = ant_isolation; 1300 1301 if (mvm->last_corun_lut == lut) 1302 return 0; 1303 1304 mvm->last_corun_lut = lut; 1305 1306 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); 1307 if (!bt_cmd) 1308 return 0; 1309 cmd.data[0] = bt_cmd; 1310 1311 bt_cmd->flags = cpu_to_le32(BT_COEX_NW); 1312 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE | 1313 BT_VALID_CORUN_LUT_20 | 1314 BT_VALID_CORUN_LUT_40); 1315 1316 /* For the moment, use the same LUT for 20GHz and 40GHz */ 1317 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[lut].lut20, 1318 sizeof(bt_cmd->bt4_corun_lut20)); 1319 1320 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[lut].lut20, 1321 sizeof(bt_cmd->bt4_corun_lut40)); 1322 1323 return 0; 1324} 1325