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 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH 10 * 11 * This program is free software; you can redistribute it and/or modify 12 * it under the terms of version 2 of the GNU General Public License as 13 * published by the Free Software Foundation. 14 * 15 * This program is distributed in the hope that it will be useful, but 16 * WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 * General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 23 * USA 24 * 25 * The full GNU General Public License is included in this distribution 26 * in the file called COPYING. 27 * 28 * Contact Information: 29 * Intel Linux Wireless <ilw@linux.intel.com> 30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 31 * 32 * BSD LICENSE 33 * 34 * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. 35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH 36 * All rights reserved. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 42 * * Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * * Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in 46 * the documentation and/or other materials provided with the 47 * distribution. 48 * * Neither the name Intel Corporation nor the names of its 49 * contributors may be used to endorse or promote products derived 50 * from this software without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 63 * 64 *****************************************************************************/ 65 66#include <linux/ieee80211.h> 67#include <linux/etherdevice.h> 68#include <net/mac80211.h> 69 70#include "fw-api-coex.h" 71#include "iwl-modparams.h" 72#include "mvm.h" 73#include "iwl-debug.h" 74 75#define EVENT_PRIO_ANT(_evt, _prio, _shrd_ant) \ 76 [(_evt)] = (((_prio) << BT_COEX_PRIO_TBL_PRIO_POS) | \ 77 ((_shrd_ant) << BT_COEX_PRIO_TBL_SHRD_ANT_POS)) 78 79static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = { 80 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB1, 81 BT_COEX_PRIO_TBL_PRIO_BYPASS, 0), 82 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB2, 83 BT_COEX_PRIO_TBL_PRIO_BYPASS, 1), 84 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW1, 85 BT_COEX_PRIO_TBL_PRIO_LOW, 0), 86 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW2, 87 BT_COEX_PRIO_TBL_PRIO_LOW, 1), 88 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH1, 89 BT_COEX_PRIO_TBL_PRIO_HIGH, 0), 90 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH2, 91 BT_COEX_PRIO_TBL_PRIO_HIGH, 1), 92 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_DTIM, 93 BT_COEX_PRIO_TBL_DISABLED, 0), 94 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN52, 95 BT_COEX_PRIO_TBL_PRIO_COEX_OFF, 0), 96 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN24, 97 BT_COEX_PRIO_TBL_PRIO_COEX_ON, 0), 98 EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_IDLE, 99 BT_COEX_PRIO_TBL_PRIO_COEX_IDLE, 0), 100 0, 0, 0, 0, 0, 0, 101}; 102 103#undef EVENT_PRIO_ANT 104 105#define BT_ANTENNA_COUPLING_THRESHOLD (30) 106 107static int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm) 108{ 109 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) 110 return 0; 111 112 return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, 0, 113 sizeof(struct iwl_bt_coex_prio_tbl_cmd), 114 &iwl_bt_prio_tbl); 115} 116 117static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = { 118 cpu_to_le32(0xf0f0f0f0), /* 50% */ 119 cpu_to_le32(0xc0c0c0c0), /* 25% */ 120 cpu_to_le32(0xfcfcfcfc), /* 75% */ 121 cpu_to_le32(0xfefefefe), /* 87.5% */ 122}; 123 124static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = { 125 { 126 cpu_to_le32(0x40000000), 127 cpu_to_le32(0x00000000), 128 cpu_to_le32(0x44000000), 129 cpu_to_le32(0x00000000), 130 cpu_to_le32(0x40000000), 131 cpu_to_le32(0x00000000), 132 cpu_to_le32(0x44000000), 133 cpu_to_le32(0x00000000), 134 cpu_to_le32(0xc0004000), 135 cpu_to_le32(0xf0005000), 136 cpu_to_le32(0xc0004000), 137 cpu_to_le32(0xf0005000), 138 }, 139 { 140 cpu_to_le32(0x40000000), 141 cpu_to_le32(0x00000000), 142 cpu_to_le32(0x44000000), 143 cpu_to_le32(0x00000000), 144 cpu_to_le32(0x40000000), 145 cpu_to_le32(0x00000000), 146 cpu_to_le32(0x44000000), 147 cpu_to_le32(0x00000000), 148 cpu_to_le32(0xc0004000), 149 cpu_to_le32(0xf0005000), 150 cpu_to_le32(0xc0004000), 151 cpu_to_le32(0xf0005000), 152 }, 153 { 154 cpu_to_le32(0x40000000), 155 cpu_to_le32(0x00000000), 156 cpu_to_le32(0x44000000), 157 cpu_to_le32(0x00000000), 158 cpu_to_le32(0x40000000), 159 cpu_to_le32(0x00000000), 160 cpu_to_le32(0x44000000), 161 cpu_to_le32(0x00000000), 162 cpu_to_le32(0xc0004000), 163 cpu_to_le32(0xf0005000), 164 cpu_to_le32(0xc0004000), 165 cpu_to_le32(0xf0005000), 166 }, 167}; 168 169static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = { 170 { 171 /* Tight */ 172 cpu_to_le32(0xaaaaaaaa), 173 cpu_to_le32(0xaaaaaaaa), 174 cpu_to_le32(0xaeaaaaaa), 175 cpu_to_le32(0xaaaaaaaa), 176 cpu_to_le32(0xcc00ff28), 177 cpu_to_le32(0x0000aaaa), 178 cpu_to_le32(0xcc00aaaa), 179 cpu_to_le32(0x0000aaaa), 180 cpu_to_le32(0xc0004000), 181 cpu_to_le32(0x00004000), 182 cpu_to_le32(0xf0005000), 183 cpu_to_le32(0xf0005000), 184 }, 185 { 186 /* Loose */ 187 cpu_to_le32(0xaaaaaaaa), 188 cpu_to_le32(0xaaaaaaaa), 189 cpu_to_le32(0xaaaaaaaa), 190 cpu_to_le32(0xaaaaaaaa), 191 cpu_to_le32(0xcc00ff28), 192 cpu_to_le32(0x0000aaaa), 193 cpu_to_le32(0xcc00aaaa), 194 cpu_to_le32(0x0000aaaa), 195 cpu_to_le32(0x00000000), 196 cpu_to_le32(0x00000000), 197 cpu_to_le32(0xf0005000), 198 cpu_to_le32(0xf0005000), 199 }, 200 { 201 /* Tx Tx disabled */ 202 cpu_to_le32(0xaaaaaaaa), 203 cpu_to_le32(0xaaaaaaaa), 204 cpu_to_le32(0xeeaaaaaa), 205 cpu_to_le32(0xaaaaaaaa), 206 cpu_to_le32(0xcc00ff28), 207 cpu_to_le32(0x0000aaaa), 208 cpu_to_le32(0xcc00aaaa), 209 cpu_to_le32(0x0000aaaa), 210 cpu_to_le32(0xc0004000), 211 cpu_to_le32(0xc0004000), 212 cpu_to_le32(0xf0005000), 213 cpu_to_le32(0xf0005000), 214 }, 215}; 216 217/* 20MHz / 40MHz below / 40Mhz above*/ 218static const __le64 iwl_ci_mask[][3] = { 219 /* dummy entry for channel 0 */ 220 {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)}, 221 { 222 cpu_to_le64(0x0000001FFFULL), 223 cpu_to_le64(0x0ULL), 224 cpu_to_le64(0x00007FFFFFULL), 225 }, 226 { 227 cpu_to_le64(0x000000FFFFULL), 228 cpu_to_le64(0x0ULL), 229 cpu_to_le64(0x0003FFFFFFULL), 230 }, 231 { 232 cpu_to_le64(0x000003FFFCULL), 233 cpu_to_le64(0x0ULL), 234 cpu_to_le64(0x000FFFFFFCULL), 235 }, 236 { 237 cpu_to_le64(0x00001FFFE0ULL), 238 cpu_to_le64(0x0ULL), 239 cpu_to_le64(0x007FFFFFE0ULL), 240 }, 241 { 242 cpu_to_le64(0x00007FFF80ULL), 243 cpu_to_le64(0x00007FFFFFULL), 244 cpu_to_le64(0x01FFFFFF80ULL), 245 }, 246 { 247 cpu_to_le64(0x0003FFFC00ULL), 248 cpu_to_le64(0x0003FFFFFFULL), 249 cpu_to_le64(0x0FFFFFFC00ULL), 250 }, 251 { 252 cpu_to_le64(0x000FFFF000ULL), 253 cpu_to_le64(0x000FFFFFFCULL), 254 cpu_to_le64(0x3FFFFFF000ULL), 255 }, 256 { 257 cpu_to_le64(0x007FFF8000ULL), 258 cpu_to_le64(0x007FFFFFE0ULL), 259 cpu_to_le64(0xFFFFFF8000ULL), 260 }, 261 { 262 cpu_to_le64(0x01FFFE0000ULL), 263 cpu_to_le64(0x01FFFFFF80ULL), 264 cpu_to_le64(0xFFFFFE0000ULL), 265 }, 266 { 267 cpu_to_le64(0x0FFFF00000ULL), 268 cpu_to_le64(0x0FFFFFFC00ULL), 269 cpu_to_le64(0x0ULL), 270 }, 271 { 272 cpu_to_le64(0x3FFFC00000ULL), 273 cpu_to_le64(0x3FFFFFF000ULL), 274 cpu_to_le64(0x0) 275 }, 276 { 277 cpu_to_le64(0xFFFE000000ULL), 278 cpu_to_le64(0xFFFFFF8000ULL), 279 cpu_to_le64(0x0) 280 }, 281 { 282 cpu_to_le64(0xFFF8000000ULL), 283 cpu_to_le64(0xFFFFFE0000ULL), 284 cpu_to_le64(0x0) 285 }, 286 { 287 cpu_to_le64(0xFFC0000000ULL), 288 cpu_to_le64(0x0ULL), 289 cpu_to_le64(0x0ULL) 290 }, 291}; 292 293static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = { 294 cpu_to_le32(0x2e402280), 295 cpu_to_le32(0x7711a751), 296}; 297 298struct corunning_block_luts { 299 u8 range; 300 __le32 lut20[BT_COEX_CORUN_LUT_SIZE]; 301}; 302 303/* 304 * Ranges for the antenna coupling calibration / co-running block LUT: 305 * LUT0: [ 0, 12[ 306 * LUT1: [12, 20[ 307 * LUT2: [20, 21[ 308 * LUT3: [21, 23[ 309 * LUT4: [23, 27[ 310 * LUT5: [27, 30[ 311 * LUT6: [30, 32[ 312 * LUT7: [32, 33[ 313 * LUT8: [33, - [ 314 */ 315static const struct corunning_block_luts antenna_coupling_ranges[] = { 316 { 317 .range = 0, 318 .lut20 = { 319 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 320 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 321 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 322 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 323 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 324 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 325 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 326 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 327 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 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 }, 336 }, 337 { 338 .range = 12, 339 .lut20 = { 340 cpu_to_le32(0x00000001), cpu_to_le32(0x00000000), 341 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 342 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 343 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 344 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 345 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 346 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 347 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 348 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 349 cpu_to_le32(0x00000000), 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 }, 357 }, 358 { 359 .range = 20, 360 .lut20 = { 361 cpu_to_le32(0x00000002), cpu_to_le32(0x00000000), 362 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 363 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 364 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 365 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 366 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 367 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 368 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 369 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 370 cpu_to_le32(0x00000000), 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 }, 378 }, 379 { 380 .range = 21, 381 .lut20 = { 382 cpu_to_le32(0x00000003), cpu_to_le32(0x00000000), 383 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 384 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 385 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 386 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 387 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 388 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 389 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 390 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 391 cpu_to_le32(0x00000000), 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 }, 399 }, 400 { 401 .range = 23, 402 .lut20 = { 403 cpu_to_le32(0x00000004), cpu_to_le32(0x00000000), 404 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 405 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 406 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 407 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 408 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 409 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 410 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 411 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 412 cpu_to_le32(0x00000000), 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 }, 420 }, 421 { 422 .range = 27, 423 .lut20 = { 424 cpu_to_le32(0x00000005), cpu_to_le32(0x00000000), 425 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 426 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 427 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 428 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 429 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 430 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 431 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 432 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 433 cpu_to_le32(0x00000000), 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 }, 441 }, 442 { 443 .range = 30, 444 .lut20 = { 445 cpu_to_le32(0x00000006), cpu_to_le32(0x00000000), 446 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 447 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 448 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 449 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 450 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 451 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 452 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 453 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 454 cpu_to_le32(0x00000000), 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 }, 462 }, 463 { 464 .range = 32, 465 .lut20 = { 466 cpu_to_le32(0x00000007), cpu_to_le32(0x00000000), 467 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 468 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 469 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 470 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 471 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 472 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 473 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 474 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 475 cpu_to_le32(0x00000000), 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 }, 483 }, 484 { 485 .range = 33, 486 .lut20 = { 487 cpu_to_le32(0x00000008), cpu_to_le32(0x00000000), 488 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 489 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 490 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 491 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 492 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 493 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 494 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 495 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), 496 cpu_to_le32(0x00000000), 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 }, 504 }, 505}; 506 507static enum iwl_bt_coex_lut_type 508iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif) 509{ 510 struct ieee80211_chanctx_conf *chanctx_conf; 511 enum iwl_bt_coex_lut_type ret; 512 u16 phy_ctx_id; 513 514 /* 515 * Checking that we hold mvm->mutex is a good idea, but the rate 516 * control can't acquire the mutex since it runs in Tx path. 517 * So this is racy in that case, but in the worst case, the AMPDU 518 * size limit will be wrong for a short time which is not a big 519 * issue. 520 */ 521 522 rcu_read_lock(); 523 524 chanctx_conf = rcu_dereference(vif->chanctx_conf); 525 526 if (!chanctx_conf || 527 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) { 528 rcu_read_unlock(); 529 return BT_COEX_INVALID_LUT; 530 } 531 532 ret = BT_COEX_TX_DIS_LUT; 533 534 if (mvm->cfg->bt_shared_single_ant) { 535 rcu_read_unlock(); 536 return ret; 537 } 538 539 phy_ctx_id = *((u16 *)chanctx_conf->drv_priv); 540 541 if (mvm->last_bt_ci_cmd_old.primary_ch_phy_id == phy_ctx_id) 542 ret = le32_to_cpu(mvm->last_bt_notif_old.primary_ch_lut); 543 else if (mvm->last_bt_ci_cmd_old.secondary_ch_phy_id == phy_ctx_id) 544 ret = le32_to_cpu(mvm->last_bt_notif_old.secondary_ch_lut); 545 /* else - default = TX TX disallowed */ 546 547 rcu_read_unlock(); 548 549 return ret; 550} 551 552int iwl_send_bt_init_conf_old(struct iwl_mvm *mvm) 553{ 554 struct iwl_bt_coex_cmd_old *bt_cmd; 555 struct iwl_host_cmd cmd = { 556 .id = BT_CONFIG, 557 .len = { sizeof(*bt_cmd), }, 558 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 559 }; 560 int ret; 561 u32 flags; 562 563 ret = iwl_send_bt_prio_tbl(mvm); 564 if (ret) 565 return ret; 566 567 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); 568 if (!bt_cmd) 569 return -ENOMEM; 570 cmd.data[0] = bt_cmd; 571 572 lockdep_assert_held(&mvm->mutex); 573 574 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) { 575 switch (mvm->bt_force_ant_mode) { 576 case BT_FORCE_ANT_AUTO: 577 flags = BT_COEX_AUTO_OLD; 578 break; 579 case BT_FORCE_ANT_BT: 580 flags = BT_COEX_BT_OLD; 581 break; 582 case BT_FORCE_ANT_WIFI: 583 flags = BT_COEX_WIFI_OLD; 584 break; 585 default: 586 WARN_ON(1); 587 flags = 0; 588 } 589 590 bt_cmd->flags = cpu_to_le32(flags); 591 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE); 592 goto send_cmd; 593 } 594 595 bt_cmd->max_kill = 5; 596 bt_cmd->bt4_antenna_isolation_thr = BT_ANTENNA_COUPLING_THRESHOLD; 597 bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling; 598 bt_cmd->bt4_tx_tx_delta_freq_thr = 15; 599 bt_cmd->bt4_tx_rx_max_freq0 = 15; 600 bt_cmd->override_primary_lut = BT_COEX_INVALID_LUT; 601 bt_cmd->override_secondary_lut = BT_COEX_INVALID_LUT; 602 603 flags = iwlwifi_mod_params.bt_coex_active ? 604 BT_COEX_NW_OLD : BT_COEX_DISABLE_OLD; 605 bt_cmd->flags = cpu_to_le32(flags); 606 607 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE | 608 BT_VALID_BT_PRIO_BOOST | 609 BT_VALID_MAX_KILL | 610 BT_VALID_3W_TMRS | 611 BT_VALID_KILL_ACK | 612 BT_VALID_KILL_CTS | 613 BT_VALID_REDUCED_TX_POWER | 614 BT_VALID_LUT | 615 BT_VALID_WIFI_RX_SW_PRIO_BOOST | 616 BT_VALID_WIFI_TX_SW_PRIO_BOOST | 617 BT_VALID_ANT_ISOLATION | 618 BT_VALID_ANT_ISOLATION_THRS | 619 BT_VALID_TXTX_DELTA_FREQ_THRS | 620 BT_VALID_TXRX_MAX_FREQ_0 | 621 BT_VALID_SYNC_TO_SCO); 622 623 if (IWL_MVM_BT_COEX_SYNC2SCO) 624 bt_cmd->flags |= cpu_to_le32(BT_COEX_SYNC2SCO); 625 626 if (IWL_MVM_BT_COEX_CORUNNING) { 627 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_CORUN_LUT_20 | 628 BT_VALID_CORUN_LUT_40); 629 bt_cmd->flags |= cpu_to_le32(BT_COEX_CORUNNING); 630 } 631 632 if (IWL_MVM_BT_COEX_MPLUT) { 633 bt_cmd->flags |= cpu_to_le32(BT_COEX_MPLUT); 634 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_MULTI_PRIO_LUT); 635 } 636 637 if (mvm->cfg->bt_shared_single_ant) 638 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant, 639 sizeof(iwl_single_shared_ant)); 640 else 641 memcpy(&bt_cmd->decision_lut, iwl_combined_lookup, 642 sizeof(iwl_combined_lookup)); 643 644 /* Take first Co-running block LUT to get started */ 645 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[0].lut20, 646 sizeof(bt_cmd->bt4_corun_lut20)); 647 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[0].lut20, 648 sizeof(bt_cmd->bt4_corun_lut40)); 649 650 memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost, 651 sizeof(iwl_bt_prio_boost)); 652 memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut, 653 sizeof(iwl_bt_mprio_lut)); 654 655send_cmd: 656 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old)); 657 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old)); 658 659 ret = iwl_mvm_send_cmd(mvm, &cmd); 660 661 kfree(bt_cmd); 662 return ret; 663} 664 665static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm) 666{ 667 struct iwl_bt_coex_profile_notif_old *notif = &mvm->last_bt_notif_old; 668 u32 primary_lut = le32_to_cpu(notif->primary_ch_lut); 669 u32 ag = le32_to_cpu(notif->bt_activity_grading); 670 struct iwl_bt_coex_cmd_old *bt_cmd; 671 u8 ack_kill_msk, cts_kill_msk; 672 struct iwl_host_cmd cmd = { 673 .id = BT_CONFIG, 674 .data[0] = &bt_cmd, 675 .len = { sizeof(*bt_cmd), }, 676 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 677 }; 678 int ret = 0; 679 680 lockdep_assert_held(&mvm->mutex); 681 682 ack_kill_msk = iwl_bt_ack_kill_msk[ag][primary_lut]; 683 cts_kill_msk = iwl_bt_cts_kill_msk[ag][primary_lut]; 684 685 if (mvm->bt_ack_kill_msk[0] == ack_kill_msk && 686 mvm->bt_cts_kill_msk[0] == cts_kill_msk) 687 return 0; 688 689 mvm->bt_ack_kill_msk[0] = ack_kill_msk; 690 mvm->bt_cts_kill_msk[0] = cts_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_OLD); 697 698 bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ctl_kill_msk[ack_kill_msk]); 699 bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_ctl_kill_msk[cts_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 ret = iwl_mvm_send_cmd(mvm, &cmd); 705 706 kfree(bt_cmd); 707 return ret; 708} 709 710static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id, 711 bool enable) 712{ 713 struct iwl_bt_coex_cmd_old *bt_cmd; 714 /* Send ASYNC since this can be sent from an atomic context */ 715 struct iwl_host_cmd cmd = { 716 .id = BT_CONFIG, 717 .len = { sizeof(*bt_cmd), }, 718 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 719 .flags = CMD_ASYNC, 720 }; 721 struct iwl_mvm_sta *mvmsta; 722 int ret; 723 724 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 725 if (!mvmsta) 726 return 0; 727 728 /* nothing to do */ 729 if (mvmsta->bt_reduced_txpower == enable) 730 return 0; 731 732 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC); 733 if (!bt_cmd) 734 return -ENOMEM; 735 cmd.data[0] = bt_cmd; 736 bt_cmd->flags = cpu_to_le32(BT_COEX_NW_OLD); 737 738 bt_cmd->valid_bit_msk = 739 cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER); 740 bt_cmd->bt_reduced_tx_power = sta_id; 741 742 if (enable) 743 bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT; 744 745 IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n", 746 enable ? "en" : "dis", sta_id); 747 748 mvmsta->bt_reduced_txpower = enable; 749 750 ret = iwl_mvm_send_cmd(mvm, &cmd); 751 752 kfree(bt_cmd); 753 return ret; 754} 755 756struct iwl_bt_iterator_data { 757 struct iwl_bt_coex_profile_notif_old *notif; 758 struct iwl_mvm *mvm; 759 struct ieee80211_chanctx_conf *primary; 760 struct ieee80211_chanctx_conf *secondary; 761 bool primary_ll; 762}; 763 764static inline 765void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm, 766 struct ieee80211_vif *vif, 767 bool enable, int rssi) 768{ 769 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 770 771 mvmvif->bf_data.last_bt_coex_event = rssi; 772 mvmvif->bf_data.bt_coex_max_thold = 773 enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0; 774 mvmvif->bf_data.bt_coex_min_thold = 775 enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0; 776} 777 778/* must be called under rcu_read_lock */ 779static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac, 780 struct ieee80211_vif *vif) 781{ 782 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 783 struct iwl_bt_iterator_data *data = _data; 784 struct iwl_mvm *mvm = data->mvm; 785 struct ieee80211_chanctx_conf *chanctx_conf; 786 enum ieee80211_smps_mode smps_mode; 787 u32 bt_activity_grading; 788 int ave_rssi; 789 790 lockdep_assert_held(&mvm->mutex); 791 792 switch (vif->type) { 793 case NL80211_IFTYPE_STATION: 794 /* default smps_mode for BSS / P2P client is AUTOMATIC */ 795 smps_mode = IEEE80211_SMPS_AUTOMATIC; 796 break; 797 case NL80211_IFTYPE_AP: 798 if (!mvmvif->ap_ibss_active) 799 return; 800 break; 801 default: 802 return; 803 } 804 805 chanctx_conf = rcu_dereference(vif->chanctx_conf); 806 807 /* If channel context is invalid or not on 2.4GHz .. */ 808 if ((!chanctx_conf || 809 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) { 810 if (vif->type == NL80211_IFTYPE_STATION) { 811 /* ... relax constraints and disable rssi events */ 812 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 813 smps_mode); 814 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, 815 false); 816 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 817 } 818 return; 819 } 820 821 bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading); 822 if (bt_activity_grading >= BT_HIGH_TRAFFIC) 823 smps_mode = IEEE80211_SMPS_STATIC; 824 else if (bt_activity_grading >= BT_LOW_TRAFFIC) 825 smps_mode = vif->type == NL80211_IFTYPE_AP ? 826 IEEE80211_SMPS_OFF : 827 IEEE80211_SMPS_DYNAMIC; 828 829 /* relax SMPS contraints for next association */ 830 if (!vif->bss_conf.assoc) 831 smps_mode = IEEE80211_SMPS_AUTOMATIC; 832 833 IWL_DEBUG_COEX(data->mvm, 834 "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n", 835 mvmvif->id, data->notif->bt_status, bt_activity_grading, 836 smps_mode); 837 838 if (vif->type == NL80211_IFTYPE_STATION) 839 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 840 smps_mode); 841 842 /* low latency is always primary */ 843 if (iwl_mvm_vif_low_latency(mvmvif)) { 844 data->primary_ll = true; 845 846 data->secondary = data->primary; 847 data->primary = chanctx_conf; 848 } 849 850 if (vif->type == NL80211_IFTYPE_AP) { 851 if (!mvmvif->ap_ibss_active) 852 return; 853 854 if (chanctx_conf == data->primary) 855 return; 856 857 if (!data->primary_ll) { 858 /* 859 * downgrade the current primary no matter what its 860 * type is. 861 */ 862 data->secondary = data->primary; 863 data->primary = chanctx_conf; 864 } else { 865 /* there is low latency vif - we will be secondary */ 866 data->secondary = chanctx_conf; 867 } 868 return; 869 } 870 871 /* 872 * STA / P2P Client, try to be primary if first vif. If we are in low 873 * latency mode, we are already in primary and just don't do much 874 */ 875 if (!data->primary || data->primary == chanctx_conf) 876 data->primary = chanctx_conf; 877 else if (!data->secondary) 878 /* if secondary is not NULL, it might be a GO */ 879 data->secondary = chanctx_conf; 880 881 /* 882 * don't reduce the Tx power if one of these is true: 883 * we are in LOOSE 884 * single share antenna product 885 * BT is active 886 * we are associated 887 */ 888 if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT || 889 mvm->cfg->bt_shared_single_ant || !vif->bss_conf.assoc || 890 !data->notif->bt_status) { 891 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false); 892 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 893 return; 894 } 895 896 /* try to get the avg rssi from fw */ 897 ave_rssi = mvmvif->bf_data.ave_beacon_signal; 898 899 /* if the RSSI isn't valid, fake it is very low */ 900 if (!ave_rssi) 901 ave_rssi = -100; 902 if (ave_rssi > -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH) { 903 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true)) 904 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 905 } else if (ave_rssi < -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH) { 906 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) 907 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 908 } 909 910 /* Begin to monitor the RSSI: it may influence the reduced Tx power */ 911 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi); 912} 913 914static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm) 915{ 916 struct iwl_bt_iterator_data data = { 917 .mvm = mvm, 918 .notif = &mvm->last_bt_notif_old, 919 }; 920 struct iwl_bt_coex_ci_cmd_old cmd = {}; 921 u8 ci_bw_idx; 922 923 /* Ignore updates if we are in force mode */ 924 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) 925 return; 926 927 rcu_read_lock(); 928 ieee80211_iterate_active_interfaces_atomic( 929 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 930 iwl_mvm_bt_notif_iterator, &data); 931 932 if (data.primary) { 933 struct ieee80211_chanctx_conf *chan = data.primary; 934 935 if (WARN_ON(!chan->def.chan)) { 936 rcu_read_unlock(); 937 return; 938 } 939 940 if (chan->def.width < NL80211_CHAN_WIDTH_40) { 941 ci_bw_idx = 0; 942 cmd.co_run_bw_primary = 0; 943 } else { 944 cmd.co_run_bw_primary = 1; 945 if (chan->def.center_freq1 > 946 chan->def.chan->center_freq) 947 ci_bw_idx = 2; 948 else 949 ci_bw_idx = 1; 950 } 951 952 cmd.bt_primary_ci = 953 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; 954 cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv); 955 } 956 957 if (data.secondary) { 958 struct ieee80211_chanctx_conf *chan = data.secondary; 959 960 if (WARN_ON(!data.secondary->def.chan)) { 961 rcu_read_unlock(); 962 return; 963 } 964 965 if (chan->def.width < NL80211_CHAN_WIDTH_40) { 966 ci_bw_idx = 0; 967 cmd.co_run_bw_secondary = 0; 968 } else { 969 cmd.co_run_bw_secondary = 1; 970 if (chan->def.center_freq1 > 971 chan->def.chan->center_freq) 972 ci_bw_idx = 2; 973 else 974 ci_bw_idx = 1; 975 } 976 977 cmd.bt_secondary_ci = 978 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; 979 cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv); 980 } 981 982 rcu_read_unlock(); 983 984 /* Don't spam the fw with the same command over and over */ 985 if (memcmp(&cmd, &mvm->last_bt_ci_cmd_old, sizeof(cmd))) { 986 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0, 987 sizeof(cmd), &cmd)) 988 IWL_ERR(mvm, "Failed to send BT_CI cmd\n"); 989 memcpy(&mvm->last_bt_ci_cmd_old, &cmd, sizeof(cmd)); 990 } 991 992 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm)) 993 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); 994} 995 996int iwl_mvm_rx_bt_coex_notif_old(struct iwl_mvm *mvm, 997 struct iwl_rx_cmd_buffer *rxb, 998 struct iwl_device_cmd *dev_cmd) 999{ 1000 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1001 struct iwl_bt_coex_profile_notif_old *notif = (void *)pkt->data; 1002 1003 IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n"); 1004 IWL_DEBUG_COEX(mvm, "\tBT status: %s\n", 1005 notif->bt_status ? "ON" : "OFF"); 1006 IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn); 1007 IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance); 1008 IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n", 1009 le32_to_cpu(notif->primary_ch_lut)); 1010 IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n", 1011 le32_to_cpu(notif->secondary_ch_lut)); 1012 IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n", 1013 le32_to_cpu(notif->bt_activity_grading)); 1014 IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n", 1015 notif->bt_agg_traffic_load); 1016 1017 /* remember this notification for future use: rssi fluctuations */ 1018 memcpy(&mvm->last_bt_notif_old, notif, sizeof(mvm->last_bt_notif_old)); 1019 1020 iwl_mvm_bt_coex_notif_handle(mvm); 1021 1022 /* 1023 * This is an async handler for a notification, returning anything other 1024 * than 0 doesn't make sense even if HCMD failed. 1025 */ 1026 return 0; 1027} 1028 1029static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac, 1030 struct ieee80211_vif *vif) 1031{ 1032 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; 1033 struct iwl_bt_iterator_data *data = _data; 1034 struct iwl_mvm *mvm = data->mvm; 1035 1036 struct ieee80211_sta *sta; 1037 struct iwl_mvm_sta *mvmsta; 1038 1039 struct ieee80211_chanctx_conf *chanctx_conf; 1040 1041 rcu_read_lock(); 1042 chanctx_conf = rcu_dereference(vif->chanctx_conf); 1043 /* If channel context is invalid or not on 2.4GHz - don't count it */ 1044 if (!chanctx_conf || 1045 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) { 1046 rcu_read_unlock(); 1047 return; 1048 } 1049 rcu_read_unlock(); 1050 1051 if (vif->type != NL80211_IFTYPE_STATION || 1052 mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) 1053 return; 1054 1055 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], 1056 lockdep_is_held(&mvm->mutex)); 1057 1058 /* This can happen if the station has been removed right now */ 1059 if (IS_ERR_OR_NULL(sta)) 1060 return; 1061 1062 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1063} 1064 1065void iwl_mvm_bt_rssi_event_old(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1066 enum ieee80211_rssi_event rssi_event) 1067{ 1068 struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; 1069 struct iwl_bt_iterator_data data = { 1070 .mvm = mvm, 1071 }; 1072 int ret; 1073 1074 lockdep_assert_held(&mvm->mutex); 1075 1076 /* Ignore updates if we are in force mode */ 1077 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) 1078 return; 1079 1080 /* 1081 * Rssi update while not associated - can happen since the statistics 1082 * are handled asynchronously 1083 */ 1084 if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) 1085 return; 1086 1087 /* No BT - reports should be disabled */ 1088 if (!mvm->last_bt_notif_old.bt_status) 1089 return; 1090 1091 IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid, 1092 rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW"); 1093 1094 /* 1095 * Check if rssi is good enough for reduced Tx power, but not in loose 1096 * scheme. 1097 */ 1098 if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant || 1099 iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT) 1100 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, 1101 false); 1102 else 1103 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true); 1104 1105 if (ret) 1106 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n"); 1107 1108 ieee80211_iterate_active_interfaces_atomic( 1109 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1110 iwl_mvm_bt_rssi_iterator, &data); 1111 1112 if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm)) 1113 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); 1114} 1115 1116#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) 1117#define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200) 1118 1119u16 iwl_mvm_coex_agg_time_limit_old(struct iwl_mvm *mvm, 1120 struct ieee80211_sta *sta) 1121{ 1122 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1123 enum iwl_bt_coex_lut_type lut_type; 1124 1125 if (le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading) < 1126 BT_HIGH_TRAFFIC) 1127 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 1128 1129 if (mvm->last_bt_notif_old.ttc_enabled) 1130 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 1131 1132 lut_type = iwl_get_coex_type(mvm, mvmsta->vif); 1133 1134 if (lut_type == BT_COEX_LOOSE_LUT || lut_type == BT_COEX_INVALID_LUT) 1135 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 1136 1137 /* tight coex, high bt traffic, reduce AGG time limit */ 1138 return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT; 1139} 1140 1141bool iwl_mvm_bt_coex_is_mimo_allowed_old(struct iwl_mvm *mvm, 1142 struct ieee80211_sta *sta) 1143{ 1144 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1145 enum iwl_bt_coex_lut_type lut_type; 1146 1147 if (mvm->last_bt_notif_old.ttc_enabled) 1148 return true; 1149 1150 if (le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading) < 1151 BT_HIGH_TRAFFIC) 1152 return true; 1153 1154 /* 1155 * In Tight / TxTxDis, BT can't Rx while we Tx, so use both antennas 1156 * since BT is already killed. 1157 * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while 1158 * we Tx. 1159 * When we are in 5GHz, we'll get BT_COEX_INVALID_LUT allowing MIMO. 1160 */ 1161 lut_type = iwl_get_coex_type(mvm, mvmsta->vif); 1162 return lut_type != BT_COEX_LOOSE_LUT; 1163} 1164 1165bool iwl_mvm_bt_coex_is_shared_ant_avail_old(struct iwl_mvm *mvm) 1166{ 1167 u32 ag = le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading); 1168 return ag == BT_OFF; 1169} 1170 1171bool iwl_mvm_bt_coex_is_tpc_allowed_old(struct iwl_mvm *mvm, 1172 enum ieee80211_band band) 1173{ 1174 u32 bt_activity = 1175 le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading); 1176 1177 if (band != IEEE80211_BAND_2GHZ) 1178 return false; 1179 1180 return bt_activity >= BT_LOW_TRAFFIC; 1181} 1182 1183void iwl_mvm_bt_coex_vif_change_old(struct iwl_mvm *mvm) 1184{ 1185 iwl_mvm_bt_coex_notif_handle(mvm); 1186} 1187 1188int iwl_mvm_rx_ant_coupling_notif_old(struct iwl_mvm *mvm, 1189 struct iwl_rx_cmd_buffer *rxb, 1190 struct iwl_device_cmd *dev_cmd) 1191{ 1192 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1193 u32 ant_isolation = le32_to_cpup((void *)pkt->data); 1194 u8 __maybe_unused lower_bound, upper_bound; 1195 int ret; 1196 u8 lut; 1197 1198 struct iwl_bt_coex_cmd_old *bt_cmd; 1199 struct iwl_host_cmd cmd = { 1200 .id = BT_CONFIG, 1201 .len = { sizeof(*bt_cmd), }, 1202 .dataflags = { IWL_HCMD_DFL_NOCOPY, }, 1203 }; 1204 1205 if (!IWL_MVM_BT_COEX_CORUNNING) 1206 return 0; 1207 1208 lockdep_assert_held(&mvm->mutex); 1209 1210 /* Ignore updates if we are in force mode */ 1211 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) 1212 return 0; 1213 1214 if (ant_isolation == mvm->last_ant_isol) 1215 return 0; 1216 1217 for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++) 1218 if (ant_isolation < antenna_coupling_ranges[lut + 1].range) 1219 break; 1220 1221 lower_bound = antenna_coupling_ranges[lut].range; 1222 1223 if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1) 1224 upper_bound = antenna_coupling_ranges[lut + 1].range; 1225 else 1226 upper_bound = antenna_coupling_ranges[lut].range; 1227 1228 IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n", 1229 ant_isolation, lower_bound, upper_bound, lut); 1230 1231 mvm->last_ant_isol = ant_isolation; 1232 1233 if (mvm->last_corun_lut == lut) 1234 return 0; 1235 1236 mvm->last_corun_lut = lut; 1237 1238 bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); 1239 if (!bt_cmd) 1240 return 0; 1241 cmd.data[0] = bt_cmd; 1242 1243 bt_cmd->flags = cpu_to_le32(BT_COEX_NW_OLD); 1244 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE | 1245 BT_VALID_CORUN_LUT_20 | 1246 BT_VALID_CORUN_LUT_40); 1247 1248 /* For the moment, use the same LUT for 20GHz and 40GHz */ 1249 memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[lut].lut20, 1250 sizeof(bt_cmd->bt4_corun_lut20)); 1251 1252 memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[lut].lut20, 1253 sizeof(bt_cmd->bt4_corun_lut40)); 1254 1255 ret = iwl_mvm_send_cmd(mvm, &cmd); 1256 1257 kfree(bt_cmd); 1258 return ret; 1259} 1260