coex.c revision 1fa477c65a404a9e5a961efcf2acd1efc5eedd04
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, 0, 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), /* 50% */ 128 cpu_to_le32(0xc0c0c0c0), /* 25% */ 129 cpu_to_le32(0xfcfcfcfc), /* 75% */ 130 cpu_to_le32(0xfefefefe), /* 87.5% */ 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(0x00004000), 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(0xeeaaaaaa), 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(0x28412201), 304 cpu_to_le32(0x11118451), 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 }; 569 int ret; 570 u32 flags; 571 572 ret = iwl_send_bt_prio_tbl(mvm); 573 if (ret) 574 return ret; 575 576 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); 577 if (!bt_cmd) 578 return -ENOMEM; 579 cmd.data[0] = bt_cmd; 580 581 bt_cmd->max_kill = 5; 582 bt_cmd->bt4_antenna_isolation_thr = BT_ANTENNA_COUPLING_THRESHOLD; 583 bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling; 584 bt_cmd->bt4_tx_tx_delta_freq_thr = 15; 585 bt_cmd->bt4_tx_rx_max_freq0 = 15; 586 bt_cmd->override_primary_lut = BT_COEX_INVALID_LUT; 587 bt_cmd->override_secondary_lut = BT_COEX_INVALID_LUT; 588 589 flags = iwlwifi_mod_params.bt_coex_active ? 590 BT_COEX_NW : BT_COEX_DISABLE; 591 bt_cmd->flags = cpu_to_le32(flags); 592 593 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE | 594 BT_VALID_BT_PRIO_BOOST | 595 BT_VALID_MAX_KILL | 596 BT_VALID_3W_TMRS | 597 BT_VALID_KILL_ACK | 598 BT_VALID_KILL_CTS | 599 BT_VALID_REDUCED_TX_POWER | 600 BT_VALID_LUT | 601 BT_VALID_WIFI_RX_SW_PRIO_BOOST | 602 BT_VALID_WIFI_TX_SW_PRIO_BOOST | 603 BT_VALID_ANT_ISOLATION | 604 BT_VALID_ANT_ISOLATION_THRS | 605 BT_VALID_TXTX_DELTA_FREQ_THRS | 606 BT_VALID_TXRX_MAX_FREQ_0 | 607 BT_VALID_SYNC_TO_SCO); 608 609 if (IWL_MVM_BT_COEX_SYNC2SCO) 610 bt_cmd->flags |= cpu_to_le32(BT_COEX_SYNC2SCO); 611 612 if (IWL_MVM_BT_COEX_CORUNNING) { 613 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_CORUN_LUT_20 | 614 BT_VALID_CORUN_LUT_40); 615 bt_cmd->flags |= cpu_to_le32(BT_COEX_CORUNNING); 616 } 617 618 if (IWL_MVM_BT_COEX_MPLUT) { 619 bt_cmd->flags |= cpu_to_le32(BT_COEX_MPLUT); 620 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_MULTI_PRIO_LUT); 621 } 622 623 if (mvm->cfg->bt_shared_single_ant) 624 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant, 625 sizeof(iwl_single_shared_ant)); 626 else 627 memcpy(&bt_cmd->decision_lut, iwl_combined_lookup, 628 sizeof(iwl_combined_lookup)); 629 630 /* Take first Co-running block LUT to get started */ 631 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[0].lut20, 632 sizeof(bt_cmd->bt4_corun_lut20)); 633 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[0].lut20, 634 sizeof(bt_cmd->bt4_corun_lut40)); 635 636 memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost, 637 sizeof(iwl_bt_prio_boost)); 638 memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut, 639 sizeof(iwl_bt_mprio_lut)); 640 bt_cmd->kill_ack_msk = 641 cpu_to_le32(iwl_bt_ack_kill_msk[BT_KILL_MSK_DEFAULT]); 642 bt_cmd->kill_cts_msk = 643 cpu_to_le32(iwl_bt_cts_kill_msk[BT_KILL_MSK_DEFAULT]); 644 645 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 646 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 647 648 ret = iwl_mvm_send_cmd(mvm, &cmd); 649 650 kfree(bt_cmd); 651 return ret; 652} 653 654static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm, 655 bool reduced_tx_power) 656{ 657 enum iwl_bt_kill_msk bt_kill_msk; 658 struct iwl_bt_coex_cmd *bt_cmd; 659 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif; 660 struct iwl_host_cmd cmd = { 661 .id = BT_CONFIG, 662 .data[0] = &bt_cmd, 663 .len = { sizeof(*bt_cmd), }, 664 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 665 }; 666 int ret = 0; 667 668 lockdep_assert_held(&mvm->mutex); 669 670 if (reduced_tx_power) { 671 /* Reduced Tx power has precedence on the type of the profile */ 672 bt_kill_msk = BT_KILL_MSK_REDUCED_TXPOW; 673 } else { 674 /* Low latency BT profile is active: give higher prio to BT */ 675 if (BT_MBOX_MSG(notif, 3, SCO_STATE) || 676 BT_MBOX_MSG(notif, 3, A2DP_STATE) || 677 BT_MBOX_MSG(notif, 3, SNIFF_STATE)) 678 bt_kill_msk = BT_KILL_MSK_SCO_HID_A2DP; 679 else 680 bt_kill_msk = BT_KILL_MSK_DEFAULT; 681 } 682 683 IWL_DEBUG_COEX(mvm, 684 "Update kill_msk: %d - SCO %sactive A2DP %sactive SNIFF %sactive\n", 685 bt_kill_msk, 686 BT_MBOX_MSG(notif, 3, SCO_STATE) ? "" : "in", 687 BT_MBOX_MSG(notif, 3, A2DP_STATE) ? "" : "in", 688 BT_MBOX_MSG(notif, 3, SNIFF_STATE) ? "" : "in"); 689 690 /* Don't send HCMD if there is no update */ 691 if (bt_kill_msk == mvm->bt_kill_msk) 692 return 0; 693 694 mvm->bt_kill_msk = bt_kill_msk; 695 696 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); 697 if (!bt_cmd) 698 return -ENOMEM; 699 cmd.data[0] = bt_cmd; 700 bt_cmd->flags = cpu_to_le32(BT_COEX_NW); 701 702 bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ack_kill_msk[bt_kill_msk]); 703 bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_cts_kill_msk[bt_kill_msk]); 704 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE | 705 BT_VALID_KILL_ACK | 706 BT_VALID_KILL_CTS); 707 708 IWL_DEBUG_COEX(mvm, "ACK Kill msk = 0x%08x, CTS Kill msk = 0x%08x\n", 709 iwl_bt_ack_kill_msk[bt_kill_msk], 710 iwl_bt_cts_kill_msk[bt_kill_msk]); 711 712 ret = iwl_mvm_send_cmd(mvm, &cmd); 713 714 kfree(bt_cmd); 715 return ret; 716} 717 718static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id, 719 bool enable) 720{ 721 struct iwl_bt_coex_cmd *bt_cmd; 722 /* Send ASYNC since this can be sent from an atomic context */ 723 struct iwl_host_cmd cmd = { 724 .id = BT_CONFIG, 725 .len = { sizeof(*bt_cmd), }, 726 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 727 .flags = CMD_ASYNC, 728 }; 729 struct iwl_mvm_sta *mvmsta; 730 int ret; 731 732 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 733 if (!mvmsta) 734 return 0; 735 736 /* nothing to do */ 737 if (mvmsta->bt_reduced_txpower == enable) 738 return 0; 739 740 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC); 741 if (!bt_cmd) 742 return -ENOMEM; 743 cmd.data[0] = bt_cmd; 744 bt_cmd->flags = cpu_to_le32(BT_COEX_NW); 745 746 bt_cmd->valid_bit_msk = 747 cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER); 748 bt_cmd->bt_reduced_tx_power = sta_id; 749 750 if (enable) 751 bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT; 752 753 IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n", 754 enable ? "en" : "dis", sta_id); 755 756 mvmsta->bt_reduced_txpower = enable; 757 758 ret = iwl_mvm_send_cmd(mvm, &cmd); 759 760 kfree(bt_cmd); 761 return ret; 762} 763 764struct iwl_bt_iterator_data { 765 struct iwl_bt_coex_profile_notif *notif; 766 struct iwl_mvm *mvm; 767 u32 num_bss_ifaces; 768 bool reduced_tx_power; 769 struct ieee80211_chanctx_conf *primary; 770 struct ieee80211_chanctx_conf *secondary; 771 bool primary_ll; 772}; 773 774static inline 775void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm, 776 struct ieee80211_vif *vif, 777 bool enable, int rssi) 778{ 779 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 780 781 mvmvif->bf_data.last_bt_coex_event = rssi; 782 mvmvif->bf_data.bt_coex_max_thold = 783 enable ? BT_ENABLE_REDUCED_TXPOWER_THRESHOLD : 0; 784 mvmvif->bf_data.bt_coex_min_thold = 785 enable ? BT_DISABLE_REDUCED_TXPOWER_THRESHOLD : 0; 786} 787 788/* must be called under rcu_read_lock */ 789static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac, 790 struct ieee80211_vif *vif) 791{ 792 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 793 struct iwl_bt_iterator_data *data = _data; 794 struct iwl_mvm *mvm = data->mvm; 795 struct ieee80211_chanctx_conf *chanctx_conf; 796 enum ieee80211_smps_mode smps_mode; 797 u32 bt_activity_grading; 798 int ave_rssi; 799 800 lockdep_assert_held(&mvm->mutex); 801 802 switch (vif->type) { 803 case NL80211_IFTYPE_STATION: 804 /* Count BSSes vifs */ 805 data->num_bss_ifaces++; 806 /* default smps_mode for BSS / P2P client is AUTOMATIC */ 807 smps_mode = IEEE80211_SMPS_AUTOMATIC; 808 break; 809 case NL80211_IFTYPE_AP: 810 /* default smps_mode for AP / GO is OFF */ 811 smps_mode = IEEE80211_SMPS_OFF; 812 if (!mvmvif->ap_ibss_active) { 813 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 814 smps_mode); 815 return; 816 } 817 818 /* the Ack / Cts kill mask must be default if AP / GO */ 819 data->reduced_tx_power = false; 820 break; 821 default: 822 return; 823 } 824 825 chanctx_conf = rcu_dereference(vif->chanctx_conf); 826 827 /* If channel context is invalid or not on 2.4GHz .. */ 828 if ((!chanctx_conf || 829 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) { 830 /* ... relax constraints and disable rssi events */ 831 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 832 smps_mode); 833 data->reduced_tx_power = false; 834 if (vif->type == NL80211_IFTYPE_STATION) { 835 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, 836 false); 837 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 838 } 839 return; 840 } 841 842 bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading); 843 if (bt_activity_grading >= BT_HIGH_TRAFFIC) 844 smps_mode = IEEE80211_SMPS_STATIC; 845 else if (bt_activity_grading >= BT_LOW_TRAFFIC) 846 smps_mode = vif->type == NL80211_IFTYPE_AP ? 847 IEEE80211_SMPS_OFF : 848 IEEE80211_SMPS_DYNAMIC; 849 850 /* relax SMPS contraints for next association */ 851 if (!vif->bss_conf.assoc) 852 smps_mode = IEEE80211_SMPS_AUTOMATIC; 853 854 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 /* 901 * don't reduce the Tx power if one of these is true: 902 * we are in LOOSE 903 * single share antenna product 904 * BT is active 905 * we are associated 906 */ 907 if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT || 908 mvm->cfg->bt_shared_single_ant || !vif->bss_conf.assoc || 909 !data->notif->bt_status) { 910 data->reduced_tx_power = false; 911 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false); 912 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 913 return; 914 } 915 916 /* try to get the avg rssi from fw */ 917 ave_rssi = mvmvif->bf_data.ave_beacon_signal; 918 919 /* if the RSSI isn't valid, fake it is very low */ 920 if (!ave_rssi) 921 ave_rssi = -100; 922 if (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) { 923 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true)) 924 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 925 926 /* 927 * bt_kill_msk can be BT_KILL_MSK_REDUCED_TXPOW only if all the 928 * BSS / P2P clients have rssi above threshold. 929 * We set the bt_kill_msk to BT_KILL_MSK_REDUCED_TXPOW before 930 * the iteration, if one interface's rssi isn't good enough, 931 * bt_kill_msk will be set to default values. 932 */ 933 } else if (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) { 934 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) 935 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 936 937 /* 938 * One interface hasn't rssi above threshold, bt_kill_msk must 939 * be set to default values. 940 */ 941 data->reduced_tx_power = false; 942 } 943 944 /* Begin to monitor the RSSI: it may influence the reduced Tx power */ 945 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi); 946} 947 948static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm) 949{ 950 struct iwl_bt_iterator_data data = { 951 .mvm = mvm, 952 .notif = &mvm->last_bt_notif, 953 .reduced_tx_power = true, 954 }; 955 struct iwl_bt_coex_ci_cmd cmd = {}; 956 u8 ci_bw_idx; 957 958 rcu_read_lock(); 959 ieee80211_iterate_active_interfaces_atomic( 960 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 961 iwl_mvm_bt_notif_iterator, &data); 962 963 if (data.primary) { 964 struct ieee80211_chanctx_conf *chan = data.primary; 965 if (WARN_ON(!chan->def.chan)) { 966 rcu_read_unlock(); 967 return; 968 } 969 970 if (chan->def.width < NL80211_CHAN_WIDTH_40) { 971 ci_bw_idx = 0; 972 cmd.co_run_bw_primary = 0; 973 } else { 974 cmd.co_run_bw_primary = 1; 975 if (chan->def.center_freq1 > 976 chan->def.chan->center_freq) 977 ci_bw_idx = 2; 978 else 979 ci_bw_idx = 1; 980 } 981 982 cmd.bt_primary_ci = 983 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; 984 cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv); 985 } 986 987 if (data.secondary) { 988 struct ieee80211_chanctx_conf *chan = data.secondary; 989 if (WARN_ON(!data.secondary->def.chan)) { 990 rcu_read_unlock(); 991 return; 992 } 993 994 if (chan->def.width < NL80211_CHAN_WIDTH_40) { 995 ci_bw_idx = 0; 996 cmd.co_run_bw_secondary = 0; 997 } else { 998 cmd.co_run_bw_secondary = 1; 999 if (chan->def.center_freq1 > 1000 chan->def.chan->center_freq) 1001 ci_bw_idx = 2; 1002 else 1003 ci_bw_idx = 1; 1004 } 1005 1006 cmd.bt_secondary_ci = 1007 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; 1008 cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv); 1009 } 1010 1011 rcu_read_unlock(); 1012 1013 /* Don't spam the fw with the same command over and over */ 1014 if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) { 1015 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0, 1016 sizeof(cmd), &cmd)) 1017 IWL_ERR(mvm, "Failed to send BT_CI cmd\n"); 1018 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd)); 1019 } 1020 1021 /* 1022 * If there are no BSS / P2P client interfaces, reduced Tx Power is 1023 * irrelevant since it is based on the RSSI coming from the beacon. 1024 * Use BT_KILL_MSK_DEFAULT in that case. 1025 */ 1026 data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; 1027 1028 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) 1029 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); 1030} 1031 1032int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm, 1033 struct iwl_rx_cmd_buffer *rxb, 1034 struct iwl_device_cmd *dev_cmd) 1035{ 1036 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1037 struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data; 1038 1039 1040 IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n"); 1041 IWL_DEBUG_COEX(mvm, "\tBT status: %s\n", 1042 notif->bt_status ? "ON" : "OFF"); 1043 IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn); 1044 IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance); 1045 IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n", 1046 le32_to_cpu(notif->primary_ch_lut)); 1047 IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n", 1048 le32_to_cpu(notif->secondary_ch_lut)); 1049 IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n", 1050 le32_to_cpu(notif->bt_activity_grading)); 1051 IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n", 1052 notif->bt_agg_traffic_load); 1053 1054 /* remember this notification for future use: rssi fluctuations */ 1055 memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif)); 1056 1057 iwl_mvm_bt_coex_notif_handle(mvm); 1058 1059 /* 1060 * This is an async handler for a notification, returning anything other 1061 * than 0 doesn't make sense even if HCMD failed. 1062 */ 1063 return 0; 1064} 1065 1066static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac, 1067 struct ieee80211_vif *vif) 1068{ 1069 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; 1070 struct iwl_bt_iterator_data *data = _data; 1071 struct iwl_mvm *mvm = data->mvm; 1072 1073 struct ieee80211_sta *sta; 1074 struct iwl_mvm_sta *mvmsta; 1075 1076 struct ieee80211_chanctx_conf *chanctx_conf; 1077 1078 rcu_read_lock(); 1079 chanctx_conf = rcu_dereference(vif->chanctx_conf); 1080 /* If channel context is invalid or not on 2.4GHz - don't count it */ 1081 if (!chanctx_conf || 1082 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) { 1083 rcu_read_unlock(); 1084 return; 1085 } 1086 rcu_read_unlock(); 1087 1088 if (vif->type != NL80211_IFTYPE_STATION || 1089 mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) 1090 return; 1091 1092 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], 1093 lockdep_is_held(&mvm->mutex)); 1094 1095 /* This can happen if the station has been removed right now */ 1096 if (IS_ERR_OR_NULL(sta)) 1097 return; 1098 1099 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1100 1101 data->num_bss_ifaces++; 1102 1103 /* 1104 * This interface doesn't support reduced Tx power (because of low 1105 * RSSI probably), then set bt_kill_msk to default values. 1106 */ 1107 if (!mvmsta->bt_reduced_txpower) 1108 data->reduced_tx_power = false; 1109 /* else - possibly leave it to BT_KILL_MSK_REDUCED_TXPOW */ 1110} 1111 1112void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1113 enum ieee80211_rssi_event rssi_event) 1114{ 1115 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; 1116 struct iwl_bt_iterator_data data = { 1117 .mvm = mvm, 1118 .reduced_tx_power = true, 1119 }; 1120 int ret; 1121 1122 lockdep_assert_held(&mvm->mutex); 1123 1124 /* 1125 * Rssi update while not associated - can happen since the statistics 1126 * are handled asynchronously 1127 */ 1128 if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) 1129 return; 1130 1131 /* No BT - reports should be disabled */ 1132 if (!mvm->last_bt_notif.bt_status) 1133 return; 1134 1135 IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid, 1136 rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW"); 1137 1138 /* 1139 * Check if rssi is good enough for reduced Tx power, but not in loose 1140 * scheme. 1141 */ 1142 if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant || 1143 iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT) 1144 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, 1145 false); 1146 else 1147 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true); 1148 1149 if (ret) 1150 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n"); 1151 1152 ieee80211_iterate_active_interfaces_atomic( 1153 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1154 iwl_mvm_bt_rssi_iterator, &data); 1155 1156 /* 1157 * If there are no BSS / P2P client interfaces, reduced Tx Power is 1158 * irrelevant since it is based on the RSSI coming from the beacon. 1159 * Use BT_KILL_MSK_DEFAULT in that case. 1160 */ 1161 data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; 1162 1163 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) 1164 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); 1165} 1166 1167#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) 1168#define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200) 1169 1170u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm, 1171 struct ieee80211_sta *sta) 1172{ 1173 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1174 enum iwl_bt_coex_lut_type lut_type; 1175 1176 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < 1177 BT_HIGH_TRAFFIC) 1178 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 1179 1180 lut_type = iwl_get_coex_type(mvm, mvmsta->vif); 1181 1182 if (lut_type == BT_COEX_LOOSE_LUT) 1183 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 1184 1185 /* tight coex, high bt traffic, reduce AGG time limit */ 1186 return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT; 1187} 1188 1189bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm, 1190 struct ieee80211_sta *sta) 1191{ 1192 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1193 1194 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < 1195 BT_HIGH_TRAFFIC) 1196 return true; 1197 1198 /* 1199 * In Tight, BT can't Rx while we Tx, so use both antennas since BT is 1200 * already killed. 1201 * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while we 1202 * Tx. 1203 */ 1204 return iwl_get_coex_type(mvm, mvmsta->vif) == BT_COEX_TIGHT_LUT; 1205} 1206 1207bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm, 1208 enum ieee80211_band band) 1209{ 1210 u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading); 1211 1212 if (band != IEEE80211_BAND_2GHZ) 1213 return false; 1214 1215 return bt_activity >= BT_LOW_TRAFFIC; 1216} 1217 1218u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr, 1219 struct ieee80211_tx_info *info, u8 ac) 1220{ 1221 __le16 fc = hdr->frame_control; 1222 1223 if (info->band != IEEE80211_BAND_2GHZ) 1224 return 0; 1225 1226 if (unlikely(mvm->bt_tx_prio)) 1227 return mvm->bt_tx_prio - 1; 1228 1229 /* High prio packet (wrt. BT coex) if it is EAPOL, MCAST or MGMT */ 1230 if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO || 1231 is_multicast_ether_addr(hdr->addr1) || 1232 ieee80211_is_ctl(fc) || ieee80211_is_mgmt(fc) || 1233 ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc)) 1234 return 3; 1235 1236 switch (ac) { 1237 case IEEE80211_AC_BE: 1238 return 1; 1239 case IEEE80211_AC_VO: 1240 return 3; 1241 case IEEE80211_AC_VI: 1242 return 2; 1243 default: 1244 break; 1245 } 1246 1247 return 0; 1248} 1249 1250void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm) 1251{ 1252 iwl_mvm_bt_coex_notif_handle(mvm); 1253} 1254 1255int iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm, 1256 struct iwl_rx_cmd_buffer *rxb, 1257 struct iwl_device_cmd *dev_cmd) 1258{ 1259 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1260 u32 ant_isolation = le32_to_cpup((void *)pkt->data); 1261 u8 __maybe_unused lower_bound, upper_bound; 1262 int ret; 1263 u8 lut; 1264 1265 struct iwl_bt_coex_cmd *bt_cmd; 1266 struct iwl_host_cmd cmd = { 1267 .id = BT_CONFIG, 1268 .len = { sizeof(*bt_cmd), }, 1269 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 1270 }; 1271 1272 if (!IWL_MVM_BT_COEX_CORUNNING) 1273 return 0; 1274 1275 lockdep_assert_held(&mvm->mutex); 1276 1277 if (ant_isolation == mvm->last_ant_isol) 1278 return 0; 1279 1280 for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++) 1281 if (ant_isolation < antenna_coupling_ranges[lut + 1].range) 1282 break; 1283 1284 lower_bound = antenna_coupling_ranges[lut].range; 1285 1286 if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1) 1287 upper_bound = antenna_coupling_ranges[lut + 1].range; 1288 else 1289 upper_bound = antenna_coupling_ranges[lut].range; 1290 1291 IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n", 1292 ant_isolation, lower_bound, upper_bound, lut); 1293 1294 mvm->last_ant_isol = ant_isolation; 1295 1296 if (mvm->last_corun_lut == lut) 1297 return 0; 1298 1299 mvm->last_corun_lut = lut; 1300 1301 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); 1302 if (!bt_cmd) 1303 return 0; 1304 cmd.data[0] = bt_cmd; 1305 1306 bt_cmd->flags = cpu_to_le32(BT_COEX_NW); 1307 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE | 1308 BT_VALID_CORUN_LUT_20 | 1309 BT_VALID_CORUN_LUT_40); 1310 1311 /* For the moment, use the same LUT for 20GHz and 40GHz */ 1312 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[lut].lut20, 1313 sizeof(bt_cmd->bt4_corun_lut20)); 1314 1315 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[lut].lut20, 1316 sizeof(bt_cmd->bt4_corun_lut40)); 1317 1318 ret = iwl_mvm_send_cmd(mvm, &cmd); 1319 1320 kfree(bt_cmd); 1321 return ret; 1322} 1323