coex.c revision 2adc8949efab1fd6e95402fc3d40596fbdecbacb
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 718int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id, bool enable) 719{ 720 struct iwl_bt_coex_cmd *bt_cmd; 721 /* Send ASYNC since this can be sent from an atomic context */ 722 struct iwl_host_cmd cmd = { 723 .id = BT_CONFIG, 724 .len = { sizeof(*bt_cmd), }, 725 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 726 .flags = CMD_ASYNC, 727 }; 728 struct iwl_mvm_sta *mvmsta; 729 int ret; 730 731 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 732 if (!mvmsta) 733 return 0; 734 735 /* nothing to do */ 736 if (mvmsta->bt_reduced_txpower_dbg || 737 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 /* default smps_mode for BSS / P2P client is AUTOMATIC */ 805 smps_mode = IEEE80211_SMPS_AUTOMATIC; 806 data->num_bss_ifaces++; 807 808 /* 809 * Count unassoc BSSes, relax SMSP constraints 810 * and disable reduced Tx Power 811 */ 812 if (!vif->bss_conf.assoc) { 813 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 814 smps_mode); 815 if (iwl_mvm_bt_coex_reduced_txp(mvm, 816 mvmvif->ap_sta_id, 817 false)) 818 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 819 return; 820 } 821 break; 822 case NL80211_IFTYPE_AP: 823 /* default smps_mode for AP / GO is OFF */ 824 smps_mode = IEEE80211_SMPS_OFF; 825 if (!mvmvif->ap_ibss_active) { 826 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 827 smps_mode); 828 return; 829 } 830 831 /* the Ack / Cts kill mask must be default if AP / GO */ 832 data->reduced_tx_power = false; 833 break; 834 default: 835 return; 836 } 837 838 chanctx_conf = rcu_dereference(vif->chanctx_conf); 839 840 /* If channel context is invalid or not on 2.4GHz .. */ 841 if ((!chanctx_conf || 842 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) { 843 /* ... relax constraints and disable rssi events */ 844 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 845 smps_mode); 846 if (vif->type == NL80211_IFTYPE_STATION) 847 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 848 return; 849 } 850 851 bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading); 852 if (bt_activity_grading >= BT_HIGH_TRAFFIC) 853 smps_mode = IEEE80211_SMPS_STATIC; 854 else if (bt_activity_grading >= BT_LOW_TRAFFIC) 855 smps_mode = vif->type == NL80211_IFTYPE_AP ? 856 IEEE80211_SMPS_OFF : 857 IEEE80211_SMPS_DYNAMIC; 858 IWL_DEBUG_COEX(data->mvm, 859 "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n", 860 mvmvif->id, data->notif->bt_status, bt_activity_grading, 861 smps_mode); 862 863 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, smps_mode); 864 865 /* low latency is always primary */ 866 if (iwl_mvm_vif_low_latency(mvmvif)) { 867 data->primary_ll = true; 868 869 data->secondary = data->primary; 870 data->primary = chanctx_conf; 871 } 872 873 if (vif->type == NL80211_IFTYPE_AP) { 874 if (!mvmvif->ap_ibss_active) 875 return; 876 877 if (chanctx_conf == data->primary) 878 return; 879 880 if (!data->primary_ll) { 881 /* 882 * downgrade the current primary no matter what its 883 * type is. 884 */ 885 data->secondary = data->primary; 886 data->primary = chanctx_conf; 887 } else { 888 /* there is low latency vif - we will be secondary */ 889 data->secondary = chanctx_conf; 890 } 891 return; 892 } 893 894 /* 895 * STA / P2P Client, try to be primary if first vif. If we are in low 896 * latency mode, we are already in primary and just don't do much 897 */ 898 if (!data->primary || data->primary == chanctx_conf) 899 data->primary = chanctx_conf; 900 else if (!data->secondary) 901 /* if secondary is not NULL, it might be a GO */ 902 data->secondary = chanctx_conf; 903 904 /* don't reduce the Tx power if in loose scheme */ 905 if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT || 906 mvm->cfg->bt_shared_single_ant) { 907 data->reduced_tx_power = false; 908 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 909 return; 910 } 911 912 /* reduced Txpower only if BT is on, so ...*/ 913 if (!data->notif->bt_status) { 914 /* ... cancel reduced Tx power ... */ 915 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) 916 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 917 data->reduced_tx_power = false; 918 919 /* ... and there is no need to get reports on RSSI any more. */ 920 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 921 return; 922 } 923 924 /* try to get the avg rssi from fw */ 925 ave_rssi = mvmvif->bf_data.ave_beacon_signal; 926 927 /* if the RSSI isn't valid, fake it is very low */ 928 if (!ave_rssi) 929 ave_rssi = -100; 930 if (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) { 931 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true)) 932 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 933 934 /* 935 * bt_kill_msk can be BT_KILL_MSK_REDUCED_TXPOW only if all the 936 * BSS / P2P clients have rssi above threshold. 937 * We set the bt_kill_msk to BT_KILL_MSK_REDUCED_TXPOW before 938 * the iteration, if one interface's rssi isn't good enough, 939 * bt_kill_msk will be set to default values. 940 */ 941 } else if (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) { 942 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) 943 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 944 945 /* 946 * One interface hasn't rssi above threshold, bt_kill_msk must 947 * be set to default values. 948 */ 949 data->reduced_tx_power = false; 950 } 951 952 /* Begin to monitor the RSSI: it may influence the reduced Tx power */ 953 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi); 954} 955 956static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm) 957{ 958 struct iwl_bt_iterator_data data = { 959 .mvm = mvm, 960 .notif = &mvm->last_bt_notif, 961 .reduced_tx_power = true, 962 }; 963 struct iwl_bt_coex_ci_cmd cmd = {}; 964 u8 ci_bw_idx; 965 966 rcu_read_lock(); 967 ieee80211_iterate_active_interfaces_atomic( 968 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 969 iwl_mvm_bt_notif_iterator, &data); 970 971 if (data.primary) { 972 struct ieee80211_chanctx_conf *chan = data.primary; 973 if (WARN_ON(!chan->def.chan)) { 974 rcu_read_unlock(); 975 return; 976 } 977 978 if (chan->def.width < NL80211_CHAN_WIDTH_40) { 979 ci_bw_idx = 0; 980 cmd.co_run_bw_primary = 0; 981 } else { 982 cmd.co_run_bw_primary = 1; 983 if (chan->def.center_freq1 > 984 chan->def.chan->center_freq) 985 ci_bw_idx = 2; 986 else 987 ci_bw_idx = 1; 988 } 989 990 cmd.bt_primary_ci = 991 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; 992 cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv); 993 } 994 995 if (data.secondary) { 996 struct ieee80211_chanctx_conf *chan = data.secondary; 997 if (WARN_ON(!data.secondary->def.chan)) { 998 rcu_read_unlock(); 999 return; 1000 } 1001 1002 if (chan->def.width < NL80211_CHAN_WIDTH_40) { 1003 ci_bw_idx = 0; 1004 cmd.co_run_bw_secondary = 0; 1005 } else { 1006 cmd.co_run_bw_secondary = 1; 1007 if (chan->def.center_freq1 > 1008 chan->def.chan->center_freq) 1009 ci_bw_idx = 2; 1010 else 1011 ci_bw_idx = 1; 1012 } 1013 1014 cmd.bt_secondary_ci = 1015 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; 1016 cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv); 1017 } 1018 1019 rcu_read_unlock(); 1020 1021 /* Don't spam the fw with the same command over and over */ 1022 if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) { 1023 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0, 1024 sizeof(cmd), &cmd)) 1025 IWL_ERR(mvm, "Failed to send BT_CI cmd\n"); 1026 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd)); 1027 } 1028 1029 /* 1030 * If there are no BSS / P2P client interfaces, reduced Tx Power is 1031 * irrelevant since it is based on the RSSI coming from the beacon. 1032 * Use BT_KILL_MSK_DEFAULT in that case. 1033 */ 1034 data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; 1035 1036 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) 1037 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); 1038} 1039 1040/* upon association, the fw will send in BT Coex notification */ 1041int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm, 1042 struct iwl_rx_cmd_buffer *rxb, 1043 struct iwl_device_cmd *dev_cmd) 1044{ 1045 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1046 struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data; 1047 1048 1049 IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n"); 1050 IWL_DEBUG_COEX(mvm, "\tBT status: %s\n", 1051 notif->bt_status ? "ON" : "OFF"); 1052 IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn); 1053 IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance); 1054 IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n", 1055 le32_to_cpu(notif->primary_ch_lut)); 1056 IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n", 1057 le32_to_cpu(notif->secondary_ch_lut)); 1058 IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n", 1059 le32_to_cpu(notif->bt_activity_grading)); 1060 IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n", 1061 notif->bt_agg_traffic_load); 1062 1063 /* remember this notification for future use: rssi fluctuations */ 1064 memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif)); 1065 1066 iwl_mvm_bt_coex_notif_handle(mvm); 1067 1068 /* 1069 * This is an async handler for a notification, returning anything other 1070 * than 0 doesn't make sense even if HCMD failed. 1071 */ 1072 return 0; 1073} 1074 1075static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac, 1076 struct ieee80211_vif *vif) 1077{ 1078 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; 1079 struct iwl_bt_iterator_data *data = _data; 1080 struct iwl_mvm *mvm = data->mvm; 1081 1082 struct ieee80211_sta *sta; 1083 struct iwl_mvm_sta *mvmsta; 1084 1085 struct ieee80211_chanctx_conf *chanctx_conf; 1086 1087 rcu_read_lock(); 1088 chanctx_conf = rcu_dereference(vif->chanctx_conf); 1089 /* If channel context is invalid or not on 2.4GHz - don't count it */ 1090 if (!chanctx_conf || 1091 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) { 1092 rcu_read_unlock(); 1093 return; 1094 } 1095 rcu_read_unlock(); 1096 1097 if (vif->type != NL80211_IFTYPE_STATION || 1098 mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) 1099 return; 1100 1101 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], 1102 lockdep_is_held(&mvm->mutex)); 1103 1104 /* This can happen if the station has been removed right now */ 1105 if (IS_ERR_OR_NULL(sta)) 1106 return; 1107 1108 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1109 1110 data->num_bss_ifaces++; 1111 1112 /* 1113 * This interface doesn't support reduced Tx power (because of low 1114 * RSSI probably), then set bt_kill_msk to default values. 1115 */ 1116 if (!mvmsta->bt_reduced_txpower) 1117 data->reduced_tx_power = false; 1118 /* else - possibly leave it to BT_KILL_MSK_REDUCED_TXPOW */ 1119} 1120 1121void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1122 enum ieee80211_rssi_event rssi_event) 1123{ 1124 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; 1125 struct iwl_bt_iterator_data data = { 1126 .mvm = mvm, 1127 .reduced_tx_power = true, 1128 }; 1129 int ret; 1130 1131 lockdep_assert_held(&mvm->mutex); 1132 1133 /* 1134 * Rssi update while not associated - can happen since the statistics 1135 * are handled asynchronously 1136 */ 1137 if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) 1138 return; 1139 1140 /* No BT - reports should be disabled */ 1141 if (!mvm->last_bt_notif.bt_status) 1142 return; 1143 1144 IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid, 1145 rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW"); 1146 1147 /* 1148 * Check if rssi is good enough for reduced Tx power, but not in loose 1149 * scheme. 1150 */ 1151 if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant || 1152 iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT) 1153 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, 1154 false); 1155 else 1156 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true); 1157 1158 if (ret) 1159 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n"); 1160 1161 ieee80211_iterate_active_interfaces_atomic( 1162 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1163 iwl_mvm_bt_rssi_iterator, &data); 1164 1165 /* 1166 * If there are no BSS / P2P client interfaces, reduced Tx Power is 1167 * irrelevant since it is based on the RSSI coming from the beacon. 1168 * Use BT_KILL_MSK_DEFAULT in that case. 1169 */ 1170 data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; 1171 1172 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) 1173 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); 1174} 1175 1176#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) 1177#define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200) 1178 1179u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm, 1180 struct ieee80211_sta *sta) 1181{ 1182 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1183 enum iwl_bt_coex_lut_type lut_type; 1184 1185 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < 1186 BT_HIGH_TRAFFIC) 1187 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 1188 1189 lut_type = iwl_get_coex_type(mvm, mvmsta->vif); 1190 1191 if (lut_type == BT_COEX_LOOSE_LUT) 1192 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 1193 1194 /* tight coex, high bt traffic, reduce AGG time limit */ 1195 return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT; 1196} 1197 1198bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm, 1199 struct ieee80211_sta *sta) 1200{ 1201 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1202 1203 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < 1204 BT_HIGH_TRAFFIC) 1205 return true; 1206 1207 /* 1208 * In Tight, BT can't Rx while we Tx, so use both antennas since BT is 1209 * already killed. 1210 * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while we 1211 * Tx. 1212 */ 1213 return iwl_get_coex_type(mvm, mvmsta->vif) == BT_COEX_TIGHT_LUT; 1214} 1215 1216bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm, 1217 enum ieee80211_band band) 1218{ 1219 u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading); 1220 1221 if (band != IEEE80211_BAND_2GHZ) 1222 return false; 1223 1224 return bt_activity >= BT_LOW_TRAFFIC; 1225} 1226 1227u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr, 1228 struct ieee80211_tx_info *info, u8 ac) 1229{ 1230 __le16 fc = hdr->frame_control; 1231 1232 if (info->band != IEEE80211_BAND_2GHZ) 1233 return 0; 1234 1235 if (unlikely(mvm->bt_tx_prio)) 1236 return mvm->bt_tx_prio - 1; 1237 1238 /* High prio packet (wrt. BT coex) if it is EAPOL, MCAST or MGMT */ 1239 if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO || 1240 is_multicast_ether_addr(hdr->addr1) || 1241 ieee80211_is_ctl(fc) || ieee80211_is_mgmt(fc) || 1242 ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc)) 1243 return 3; 1244 1245 switch (ac) { 1246 case IEEE80211_AC_BE: 1247 return 1; 1248 case IEEE80211_AC_VO: 1249 return 3; 1250 case IEEE80211_AC_VI: 1251 return 2; 1252 default: 1253 break; 1254 } 1255 1256 return 0; 1257} 1258 1259void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm) 1260{ 1261 iwl_mvm_bt_coex_notif_handle(mvm); 1262} 1263 1264int iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm, 1265 struct iwl_rx_cmd_buffer *rxb, 1266 struct iwl_device_cmd *dev_cmd) 1267{ 1268 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1269 u32 ant_isolation = le32_to_cpup((void *)pkt->data); 1270 u8 __maybe_unused lower_bound, upper_bound; 1271 int ret; 1272 u8 lut; 1273 1274 struct iwl_bt_coex_cmd *bt_cmd; 1275 struct iwl_host_cmd cmd = { 1276 .id = BT_CONFIG, 1277 .len = { sizeof(*bt_cmd), }, 1278 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 1279 }; 1280 1281 if (!IWL_MVM_BT_COEX_CORUNNING) 1282 return 0; 1283 1284 lockdep_assert_held(&mvm->mutex); 1285 1286 if (ant_isolation == mvm->last_ant_isol) 1287 return 0; 1288 1289 for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++) 1290 if (ant_isolation < antenna_coupling_ranges[lut + 1].range) 1291 break; 1292 1293 lower_bound = antenna_coupling_ranges[lut].range; 1294 1295 if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1) 1296 upper_bound = antenna_coupling_ranges[lut + 1].range; 1297 else 1298 upper_bound = antenna_coupling_ranges[lut].range; 1299 1300 IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n", 1301 ant_isolation, lower_bound, upper_bound, lut); 1302 1303 mvm->last_ant_isol = ant_isolation; 1304 1305 if (mvm->last_corun_lut == lut) 1306 return 0; 1307 1308 mvm->last_corun_lut = lut; 1309 1310 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); 1311 if (!bt_cmd) 1312 return 0; 1313 cmd.data[0] = bt_cmd; 1314 1315 bt_cmd->flags = cpu_to_le32(BT_COEX_NW); 1316 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE | 1317 BT_VALID_CORUN_LUT_20 | 1318 BT_VALID_CORUN_LUT_40); 1319 1320 /* For the moment, use the same LUT for 20GHz and 40GHz */ 1321 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[lut].lut20, 1322 sizeof(bt_cmd->bt4_corun_lut20)); 1323 1324 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[lut].lut20, 1325 sizeof(bt_cmd->bt4_corun_lut40)); 1326 1327 ret = iwl_mvm_send_cmd(mvm, &cmd); 1328 1329 kfree(bt_cmd); 1330 return ret; 1331} 1332