drivers/net/wireless/iwlwifi/mvm/coex.c

   1 /******************************************************************************
   2  *
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   6  * GPL LICENSE SUMMARY
   7  *
   8  * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved.
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  11  * it under the terms of version 2 of the GNU General Public License as
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  13  *
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  28  *  Intel Linux Wireless <ilw@linux.intel.com>
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  33  * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved.
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  44  *    the documentation and/or other materials provided with the
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  48  *    from this software without specific prior written permission.
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  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,
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  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 BT_ANTENNA_COUPLING_THRESHOLD           (30)
  74
  75 const u32 iwl_bt_ctl_kill_msk[BT_KILL_MSK_MAX] = {
  76         [BT_KILL_MSK_DEFAULT] = 0xfffffc00,
  77         [BT_KILL_MSK_NEVER] = 0xffffffff,
  78         [BT_KILL_MSK_ALWAYS] = 0,
  79 };
  80
  81 const u8 iwl_bt_cts_kill_msk[BT_MAX_AG][BT_COEX_MAX_LUT] = {
  82         {
  83                 BT_KILL_MSK_ALWAYS,
  84                 BT_KILL_MSK_ALWAYS,
  85                 BT_KILL_MSK_ALWAYS,
  86         },
  87         {
  88                 BT_KILL_MSK_NEVER,
  89                 BT_KILL_MSK_NEVER,
  90                 BT_KILL_MSK_NEVER,
  91         },
  92         {
  93                 BT_KILL_MSK_NEVER,
  94                 BT_KILL_MSK_NEVER,
  95                 BT_KILL_MSK_NEVER,
  96         },
  97         {
  98                 BT_KILL_MSK_DEFAULT,
  99                 BT_KILL_MSK_NEVER,
 100                 BT_KILL_MSK_DEFAULT,
 101         },
 102 };
 103
 104 const u8 iwl_bt_ack_kill_msk[BT_MAX_AG][BT_COEX_MAX_LUT] = {
 105         {
 106                 BT_KILL_MSK_ALWAYS,
 107                 BT_KILL_MSK_ALWAYS,
 108                 BT_KILL_MSK_ALWAYS,
 109         },
 110         {
 111                 BT_KILL_MSK_ALWAYS,
 112                 BT_KILL_MSK_ALWAYS,
 113                 BT_KILL_MSK_ALWAYS,
 114         },
 115         {
 116                 BT_KILL_MSK_ALWAYS,
 117                 BT_KILL_MSK_ALWAYS,
 118                 BT_KILL_MSK_ALWAYS,
 119         },
 120         {
 121                 BT_KILL_MSK_DEFAULT,
 122                 BT_KILL_MSK_ALWAYS,
 123                 BT_KILL_MSK_DEFAULT,
 124         },
 125 };
 126
 127 static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = {
 128         cpu_to_le32(0xf0f0f0f0), /* 50% */
 129         cpu_to_le32(0xc0c0c0c0), /* 25% */
 130         cpu_to_le32(0xfcfcfcfc), /* 75% */
 131         cpu_to_le32(0xfefefefe), /* 87.5% */
 132 };
 133
 134 static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
 135         {
 136                 cpu_to_le32(0x40000000),
 137                 cpu_to_le32(0x00000000),
 138                 cpu_to_le32(0x44000000),
 139                 cpu_to_le32(0x00000000),
 140                 cpu_to_le32(0x40000000),
 141                 cpu_to_le32(0x00000000),
 142                 cpu_to_le32(0x44000000),
 143                 cpu_to_le32(0x00000000),
 144                 cpu_to_le32(0xc0004000),
 145                 cpu_to_le32(0xf0005000),
 146                 cpu_to_le32(0xc0004000),
 147                 cpu_to_le32(0xf0005000),
 148         },
 149         {
 150                 cpu_to_le32(0x40000000),
 151                 cpu_to_le32(0x00000000),
 152                 cpu_to_le32(0x44000000),
 153                 cpu_to_le32(0x00000000),
 154                 cpu_to_le32(0x40000000),
 155                 cpu_to_le32(0x00000000),
 156                 cpu_to_le32(0x44000000),
 157                 cpu_to_le32(0x00000000),
 158                 cpu_to_le32(0xc0004000),
 159                 cpu_to_le32(0xf0005000),
 160                 cpu_to_le32(0xc0004000),
 161                 cpu_to_le32(0xf0005000),
 162         },
 163         {
 164                 cpu_to_le32(0x40000000),
 165                 cpu_to_le32(0x00000000),
 166                 cpu_to_le32(0x44000000),
 167                 cpu_to_le32(0x00000000),
 168                 cpu_to_le32(0x40000000),
 169                 cpu_to_le32(0x00000000),
 170                 cpu_to_le32(0x44000000),
 171                 cpu_to_le32(0x00000000),
 172                 cpu_to_le32(0xc0004000),
 173                 cpu_to_le32(0xf0005000),
 174                 cpu_to_le32(0xc0004000),
 175                 cpu_to_le32(0xf0005000),
 176         },
 177 };
 178
 179 static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
 180         {
 181                 /* Tight */
 182                 cpu_to_le32(0xaaaaaaaa),
 183                 cpu_to_le32(0xaaaaaaaa),
 184                 cpu_to_le32(0xaeaaaaaa),
 185                 cpu_to_le32(0xaaaaaaaa),
 186                 cpu_to_le32(0xcc00ff28),
 187                 cpu_to_le32(0x0000aaaa),
 188                 cpu_to_le32(0xcc00aaaa),
 189                 cpu_to_le32(0x0000aaaa),
 190                 cpu_to_le32(0xc0004000),
 191                 cpu_to_le32(0x00004000),
 192                 cpu_to_le32(0xf0005000),
 193                 cpu_to_le32(0xf0005000),
 194         },
 195         {
 196                 /* Loose */
 197                 cpu_to_le32(0xaaaaaaaa),
 198                 cpu_to_le32(0xaaaaaaaa),
 199                 cpu_to_le32(0xaaaaaaaa),
 200                 cpu_to_le32(0xaaaaaaaa),
 201                 cpu_to_le32(0xcc00ff28),
 202                 cpu_to_le32(0x0000aaaa),
 203                 cpu_to_le32(0xcc00aaaa),
 204                 cpu_to_le32(0x0000aaaa),
 205                 cpu_to_le32(0x00000000),
 206                 cpu_to_le32(0x00000000),
 207                 cpu_to_le32(0xf0005000),
 208                 cpu_to_le32(0xf0005000),
 209         },
 210         {
 211                 /* Tx Tx disabled */
 212                 cpu_to_le32(0xaaaaaaaa),
 213                 cpu_to_le32(0xaaaaaaaa),
 214                 cpu_to_le32(0xeeaaaaaa),
 215                 cpu_to_le32(0xaaaaaaaa),
 216                 cpu_to_le32(0xcc00ff28),
 217                 cpu_to_le32(0x0000aaaa),
 218                 cpu_to_le32(0xcc00aaaa),
 219                 cpu_to_le32(0x0000aaaa),
 220                 cpu_to_le32(0xc0004000),
 221                 cpu_to_le32(0xc0004000),
 222                 cpu_to_le32(0xf0005000),
 223                 cpu_to_le32(0xf0005000),
 224         },
 225 };
 226
 227 /* 20MHz / 40MHz below / 40Mhz above*/
 228 static const __le64 iwl_ci_mask[][3] = {
 229         /* dummy entry for channel 0 */
 230         {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
 231         {
 232                 cpu_to_le64(0x0000001FFFULL),
 233                 cpu_to_le64(0x0ULL),
 234                 cpu_to_le64(0x00007FFFFFULL),
 235         },
 236         {
 237                 cpu_to_le64(0x000000FFFFULL),
 238                 cpu_to_le64(0x0ULL),
 239                 cpu_to_le64(0x0003FFFFFFULL),
 240         },
 241         {
 242                 cpu_to_le64(0x000003FFFCULL),
 243                 cpu_to_le64(0x0ULL),
 244                 cpu_to_le64(0x000FFFFFFCULL),
 245         },
 246         {
 247                 cpu_to_le64(0x00001FFFE0ULL),
 248                 cpu_to_le64(0x0ULL),
 249                 cpu_to_le64(0x007FFFFFE0ULL),
 250         },
 251         {
 252                 cpu_to_le64(0x00007FFF80ULL),
 253                 cpu_to_le64(0x00007FFFFFULL),
 254                 cpu_to_le64(0x01FFFFFF80ULL),
 255         },
 256         {
 257                 cpu_to_le64(0x0003FFFC00ULL),
 258                 cpu_to_le64(0x0003FFFFFFULL),
 259                 cpu_to_le64(0x0FFFFFFC00ULL),
 260         },
 261         {
 262                 cpu_to_le64(0x000FFFF000ULL),
 263                 cpu_to_le64(0x000FFFFFFCULL),
 264                 cpu_to_le64(0x3FFFFFF000ULL),
 265         },
 266         {
 267                 cpu_to_le64(0x007FFF8000ULL),
 268                 cpu_to_le64(0x007FFFFFE0ULL),
 269                 cpu_to_le64(0xFFFFFF8000ULL),
 270         },
 271         {
 272                 cpu_to_le64(0x01FFFE0000ULL),
 273                 cpu_to_le64(0x01FFFFFF80ULL),
 274                 cpu_to_le64(0xFFFFFE0000ULL),
 275         },
 276         {
 277                 cpu_to_le64(0x0FFFF00000ULL),
 278                 cpu_to_le64(0x0FFFFFFC00ULL),
 279                 cpu_to_le64(0x0ULL),
 280         },
 281         {
 282                 cpu_to_le64(0x3FFFC00000ULL),
 283                 cpu_to_le64(0x3FFFFFF000ULL),
 284                 cpu_to_le64(0x0)
 285         },
 286         {
 287                 cpu_to_le64(0xFFFE000000ULL),
 288                 cpu_to_le64(0xFFFFFF8000ULL),
 289                 cpu_to_le64(0x0)
 290         },
 291         {
 292                 cpu_to_le64(0xFFF8000000ULL),
 293                 cpu_to_le64(0xFFFFFE0000ULL),
 294                 cpu_to_le64(0x0)
 295         },
 296         {
 297                 cpu_to_le64(0xFFC0000000ULL),
 298                 cpu_to_le64(0x0ULL),
 299                 cpu_to_le64(0x0ULL)
 300         },
 301 };
 302
 303 static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = {
 304         cpu_to_le32(0x28412201),
 305         cpu_to_le32(0x11118451),
 306 };
 307
 308 struct corunning_block_luts {
 309         u8 range;
 310         __le32 lut20[BT_COEX_CORUN_LUT_SIZE];
 311 };
 312
 313 /*
 314  * Ranges for the antenna coupling calibration / co-running block LUT:
 315  *              LUT0: [ 0, 12[
 316  *              LUT1: [12, 20[
 317  *              LUT2: [20, 21[
 318  *              LUT3: [21, 23[
 319  *              LUT4: [23, 27[
 320  *              LUT5: [27, 30[
 321  *              LUT6: [30, 32[
 322  *              LUT7: [32, 33[
 323  *              LUT8: [33, - [
 324  */
 325 static const struct corunning_block_luts antenna_coupling_ranges[] = {
 326         {
 327                 .range = 0,
 328                 .lut20 = {
 329                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 330                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 331                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 332                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 333                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 334                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 335                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 336                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 337                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 338                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 339                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 340                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 341                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 342                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 343                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 344                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 345                 },
 346         },
 347         {
 348                 .range = 12,
 349                 .lut20 = {
 350                         cpu_to_le32(0x00000001),  cpu_to_le32(0x00000000),
 351                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 352                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 353                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 354                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 355                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 356                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 357                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 358                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 359                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 360                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 361                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 362                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 363                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 364                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 365                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 366                 },
 367         },
 368         {
 369                 .range = 20,
 370                 .lut20 = {
 371                         cpu_to_le32(0x00000002),  cpu_to_le32(0x00000000),
 372                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 373                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 374                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 375                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 376                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 377                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 378                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 379                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 380                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 381                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 382                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 383                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 384                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 385                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 386                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 387                 },
 388         },
 389         {
 390                 .range = 21,
 391                 .lut20 = {
 392                         cpu_to_le32(0x00000003),  cpu_to_le32(0x00000000),
 393                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 394                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 395                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 396                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 397                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 398                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 399                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 400                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 401                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 402                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 403                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 404                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 405                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 406                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 407                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 408                 },
 409         },
 410         {
 411                 .range = 23,
 412                 .lut20 = {
 413                         cpu_to_le32(0x00000004),  cpu_to_le32(0x00000000),
 414                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 415                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 416                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 417                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 418                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 419                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 420                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 421                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 422                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 423                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 424                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 425                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 426                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 427                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 428                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 429                 },
 430         },
 431         {
 432                 .range = 27,
 433                 .lut20 = {
 434                         cpu_to_le32(0x00000005),  cpu_to_le32(0x00000000),
 435                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 436                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 437                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 438                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 439                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 440                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 441                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 442                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 443                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 444                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 445                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 446                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 447                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 448                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 449                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 450                 },
 451         },
 452         {
 453                 .range = 30,
 454                 .lut20 = {
 455                         cpu_to_le32(0x00000006),  cpu_to_le32(0x00000000),
 456                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 457                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 458                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 459                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 460                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 461                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 462                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 463                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 464                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 465                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 466                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 467                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 468                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 469                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 470                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 471                 },
 472         },
 473         {
 474                 .range = 32,
 475                 .lut20 = {
 476                         cpu_to_le32(0x00000007),  cpu_to_le32(0x00000000),
 477                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 478                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 479                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 480                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 481                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 482                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 483                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 484                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 485                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 486                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 487                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 488                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 489                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 490                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 491                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 492                 },
 493         },
 494         {
 495                 .range = 33,
 496                 .lut20 = {
 497                         cpu_to_le32(0x00000008),  cpu_to_le32(0x00000000),
 498                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 499                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 500                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 501                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 502                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 503                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 504                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 505                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 506                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 507                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 508                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 509                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 510                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 511                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 512                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 513                 },
 514         },
 515 };
 516
 517 static enum iwl_bt_coex_lut_type
 518 iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
 519 {
 520         struct ieee80211_chanctx_conf *chanctx_conf;
 521         enum iwl_bt_coex_lut_type ret;
 522         u16 phy_ctx_id;
 523         u32 primary_ch_phy_id, secondary_ch_phy_id;
 524
 525         /*
 526          * Checking that we hold mvm->mutex is a good idea, but the rate
 527          * control can't acquire the mutex since it runs in Tx path.
 528          * So this is racy in that case, but in the worst case, the AMPDU
 529          * size limit will be wrong for a short time which is not a big
 530          * issue.
 531          */
 532
 533         rcu_read_lock();
 534
 535         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 536
 537         if (!chanctx_conf ||
 538              chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
 539                 rcu_read_unlock();
 540                 return BT_COEX_INVALID_LUT;
 541         }
 542
 543         ret = BT_COEX_TX_DIS_LUT;
 544
 545         if (mvm->cfg->bt_shared_single_ant) {
 546                 rcu_read_unlock();
 547                 return ret;
 548         }
 549
 550         phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
 551         primary_ch_phy_id = le32_to_cpu(mvm->last_bt_ci_cmd.primary_ch_phy_id);
 552         secondary_ch_phy_id =
 553                 le32_to_cpu(mvm->last_bt_ci_cmd.secondary_ch_phy_id);
 554
 555         if (primary_ch_phy_id == phy_ctx_id)
 556                 ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut);
 557         else if (secondary_ch_phy_id == phy_ctx_id)
 558                 ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut);
 559         /* else - default = TX TX disallowed */
 560
 561         rcu_read_unlock();
 562
 563         return ret;
 564 }
 565
 566 int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
 567 {
 568         struct iwl_bt_coex_cmd *bt_cmd;
 569         struct iwl_host_cmd cmd = {
 570                 .id = BT_CONFIG,
 571                 .len = { sizeof(*bt_cmd), },
 572                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 573         };
 574         int ret;
 575         u32 mode;
 576
 577         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
 578                 return iwl_send_bt_init_conf_old(mvm);
 579
 580         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
 581         if (!bt_cmd)
 582                 return -ENOMEM;
 583         cmd.data[0] = bt_cmd;
 584
 585         lockdep_assert_held(&mvm->mutex);
 586
 587         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) {
 588                 u32 mode;
 589
 590                 switch (mvm->bt_force_ant_mode) {
 591                 case BT_FORCE_ANT_BT:
 592                         mode = BT_COEX_BT;
 593                         break;
 594                 case BT_FORCE_ANT_WIFI:
 595                         mode = BT_COEX_WIFI;
 596                         break;
 597                 default:
 598                         WARN_ON(1);
 599                         mode = 0;
 600                 }
 601
 602                 bt_cmd->mode = cpu_to_le32(mode);
 603                 goto send_cmd;
 604         }
 605
 606         bt_cmd->max_kill = cpu_to_le32(5);
 607         bt_cmd->bt4_antenna_isolation_thr =
 608                                 cpu_to_le32(BT_ANTENNA_COUPLING_THRESHOLD);
 609         bt_cmd->bt4_tx_tx_delta_freq_thr = cpu_to_le32(15);
 610         bt_cmd->bt4_tx_rx_max_freq0 = cpu_to_le32(15);
 611         bt_cmd->override_primary_lut = cpu_to_le32(BT_COEX_INVALID_LUT);
 612         bt_cmd->override_secondary_lut = cpu_to_le32(BT_COEX_INVALID_LUT);
 613
 614         mode = iwlwifi_mod_params.bt_coex_active ? BT_COEX_NW : BT_COEX_DISABLE;
 615         bt_cmd->mode = cpu_to_le32(mode);
 616
 617         if (IWL_MVM_BT_COEX_SYNC2SCO)
 618                 bt_cmd->enabled_modules |=
 619                         cpu_to_le32(BT_COEX_SYNC2SCO_ENABLED);
 620
 621         if (IWL_MVM_BT_COEX_CORUNNING)
 622                 bt_cmd->enabled_modules |= cpu_to_le32(BT_COEX_CORUN_ENABLED);
 623
 624         if (IWL_MVM_BT_COEX_MPLUT) {
 625                 bt_cmd->enabled_modules |= cpu_to_le32(BT_COEX_MPLUT_ENABLED);
 626                 bt_cmd->enabled_modules |=
 627                         cpu_to_le32(BT_COEX_MPLUT_BOOST_ENABLED);
 628         }
 629
 630         bt_cmd->enabled_modules |= cpu_to_le32(BT_COEX_HIGH_BAND_RET);
 631
 632         if (mvm->cfg->bt_shared_single_ant)
 633                 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant,
 634                        sizeof(iwl_single_shared_ant));
 635         else
 636                 memcpy(&bt_cmd->decision_lut, iwl_combined_lookup,
 637                        sizeof(iwl_combined_lookup));
 638
 639         memcpy(&bt_cmd->mplut_prio_boost, iwl_bt_prio_boost,
 640                sizeof(iwl_bt_prio_boost));
 641         memcpy(&bt_cmd->multiprio_lut, iwl_bt_mprio_lut,
 642                sizeof(iwl_bt_mprio_lut));
 643
 644 send_cmd:
 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
 654 static int iwl_mvm_bt_udpate_sw_boost(struct iwl_mvm *mvm)
 655 {
 656         struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
 657         u32 primary_lut = le32_to_cpu(notif->primary_ch_lut);
 658         u32 secondary_lut = le32_to_cpu(notif->secondary_ch_lut);
 659         u32 ag = le32_to_cpu(notif->bt_activity_grading);
 660         struct iwl_bt_coex_sw_boost_update_cmd cmd = {};
 661         u8 ack_kill_msk[NUM_PHY_CTX] = {};
 662         u8 cts_kill_msk[NUM_PHY_CTX] = {};
 663         int i;
 664
 665         lockdep_assert_held(&mvm->mutex);
 666
 667         ack_kill_msk[0] = iwl_bt_ack_kill_msk[ag][primary_lut];
 668         cts_kill_msk[0] = iwl_bt_cts_kill_msk[ag][primary_lut];
 669
 670         ack_kill_msk[1] = iwl_bt_ack_kill_msk[ag][secondary_lut];
 671         cts_kill_msk[1] = iwl_bt_cts_kill_msk[ag][secondary_lut];
 672
 673         /* Don't send HCMD if there is no update */
 674         if (!memcmp(ack_kill_msk, mvm->bt_ack_kill_msk, sizeof(ack_kill_msk)) ||
 675             !memcmp(cts_kill_msk, mvm->bt_cts_kill_msk, sizeof(cts_kill_msk)))
 676                 return 0;
 677
 678         memcpy(mvm->bt_ack_kill_msk, ack_kill_msk,
 679                sizeof(mvm->bt_ack_kill_msk));
 680         memcpy(mvm->bt_cts_kill_msk, cts_kill_msk,
 681                sizeof(mvm->bt_cts_kill_msk));
 682
 683         BUILD_BUG_ON(ARRAY_SIZE(ack_kill_msk) < ARRAY_SIZE(cmd.boost_values));
 684
 685         for (i = 0; i < ARRAY_SIZE(cmd.boost_values); i++) {
 686                 cmd.boost_values[i].kill_ack_msk =
 687                         cpu_to_le32(iwl_bt_ctl_kill_msk[ack_kill_msk[i]]);
 688                 cmd.boost_values[i].kill_cts_msk =
 689                         cpu_to_le32(iwl_bt_ctl_kill_msk[cts_kill_msk[i]]);
 690         }
 691
 692         return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_SW_BOOST, 0,
 693                                     sizeof(cmd), &cmd);
 694 }
 695
 696 static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
 697                                        bool enable)
 698 {
 699         struct iwl_bt_coex_reduced_txp_update_cmd cmd = {};
 700         struct iwl_mvm_sta *mvmsta;
 701         u32 value;
 702         int ret;
 703
 704         mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
 705         if (!mvmsta)
 706                 return 0;
 707
 708         /* nothing to do */
 709         if (mvmsta->bt_reduced_txpower == enable)
 710                 return 0;
 711
 712         value = mvmsta->sta_id;
 713
 714         if (enable)
 715                 value |= BT_REDUCED_TX_POWER_BIT;
 716
 717         IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
 718                        enable ? "en" : "dis", sta_id);
 719
 720         cmd.reduced_txp = cpu_to_le32(value);
 721         mvmsta->bt_reduced_txpower = enable;
 722
 723         ret = iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_REDUCED_TXP, CMD_ASYNC,
 724                                    sizeof(cmd), &cmd);
 725
 726         return ret;
 727 }
 728
 729 struct iwl_bt_iterator_data {
 730         struct iwl_bt_coex_profile_notif *notif;
 731         struct iwl_mvm *mvm;
 732         struct ieee80211_chanctx_conf *primary;
 733         struct ieee80211_chanctx_conf *secondary;
 734         bool primary_ll;
 735 };
 736
 737 static inline
 738 void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
 739                                        struct ieee80211_vif *vif,
 740                                        bool enable, int rssi)
 741 {
 742         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 743
 744         mvmvif->bf_data.last_bt_coex_event = rssi;
 745         mvmvif->bf_data.bt_coex_max_thold =
 746                 enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0;
 747         mvmvif->bf_data.bt_coex_min_thold =
 748                 enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0;
 749 }
 750
 751 /* must be called under rcu_read_lock */
 752 static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 753                                       struct ieee80211_vif *vif)
 754 {
 755         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 756         struct iwl_bt_iterator_data *data = _data;
 757         struct iwl_mvm *mvm = data->mvm;
 758         struct ieee80211_chanctx_conf *chanctx_conf;
 759         enum ieee80211_smps_mode smps_mode;
 760         u32 bt_activity_grading;
 761         int ave_rssi;
 762
 763         lockdep_assert_held(&mvm->mutex);
 764
 765         switch (vif->type) {
 766         case NL80211_IFTYPE_STATION:
 767                 /* default smps_mode for BSS / P2P client is AUTOMATIC */
 768                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 769                 break;
 770         case NL80211_IFTYPE_AP:
 771                 if (!mvmvif->ap_ibss_active)
 772                         return;
 773                 break;
 774         default:
 775                 return;
 776         }
 777
 778         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 779
 780         /* If channel context is invalid or not on 2.4GHz .. */
 781         if ((!chanctx_conf ||
 782              chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) {
 783                 if (vif->type == NL80211_IFTYPE_STATION) {
 784                         /* ... relax constraints and disable rssi events */
 785                         iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 786                                             smps_mode);
 787                         iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
 788                                                     false);
 789                         iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 790                 }
 791                 return;
 792         }
 793
 794         bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
 795         if (bt_activity_grading >= BT_HIGH_TRAFFIC)
 796                 smps_mode = IEEE80211_SMPS_STATIC;
 797         else if (bt_activity_grading >= BT_LOW_TRAFFIC)
 798                 smps_mode = IEEE80211_SMPS_DYNAMIC;
 799
 800         /* relax SMPS contraints for next association */
 801         if (!vif->bss_conf.assoc)
 802                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 803
 804         if (IWL_COEX_IS_RRC_ON(mvm->last_bt_notif.ttc_rrc_status,
 805                                mvmvif->phy_ctxt->id))
 806                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 807
 808         IWL_DEBUG_COEX(data->mvm,
 809                        "mac %d: bt_activity_grading %d smps_req %d\n",
 810                        mvmvif->id, bt_activity_grading, smps_mode);
 811
 812         if (vif->type == NL80211_IFTYPE_STATION)
 813                 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 814                                     smps_mode);
 815
 816         /* low latency is always primary */
 817         if (iwl_mvm_vif_low_latency(mvmvif)) {
 818                 data->primary_ll = true;
 819
 820                 data->secondary = data->primary;
 821                 data->primary = chanctx_conf;
 822         }
 823
 824         if (vif->type == NL80211_IFTYPE_AP) {
 825                 if (!mvmvif->ap_ibss_active)
 826                         return;
 827
 828                 if (chanctx_conf == data->primary)
 829                         return;
 830
 831                 if (!data->primary_ll) {
 832                         /*
 833                          * downgrade the current primary no matter what its
 834                          * type is.
 835                          */
 836                         data->secondary = data->primary;
 837                         data->primary = chanctx_conf;
 838                 } else {
 839                         /* there is low latency vif - we will be secondary */
 840                         data->secondary = chanctx_conf;
 841                 }
 842                 return;
 843         }
 844
 845         /*
 846          * STA / P2P Client, try to be primary if first vif. If we are in low
 847          * latency mode, we are already in primary and just don't do much
 848          */
 849         if (!data->primary || data->primary == chanctx_conf)
 850                 data->primary = chanctx_conf;
 851         else if (!data->secondary)
 852                 /* if secondary is not NULL, it might be a GO */
 853                 data->secondary = chanctx_conf;
 854
 855         /*
 856          * don't reduce the Tx power if one of these is true:
 857          *  we are in LOOSE
 858          *  single share antenna product
 859          *  BT is active
 860          *  we are associated
 861          */
 862         if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
 863             mvm->cfg->bt_shared_single_ant || !vif->bss_conf.assoc ||
 864             le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF) {
 865                 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false);
 866                 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 867                 return;
 868         }
 869
 870         /* try to get the avg rssi from fw */
 871         ave_rssi = mvmvif->bf_data.ave_beacon_signal;
 872
 873         /* if the RSSI isn't valid, fake it is very low */
 874         if (!ave_rssi)
 875                 ave_rssi = -100;
 876         if (ave_rssi > -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH) {
 877                 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true))
 878                         IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 879         } else if (ave_rssi < -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH) {
 880                 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
 881                         IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 882         }
 883
 884         /* Begin to monitor the RSSI: it may influence the reduced Tx power */
 885         iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
 886 }
 887
 888 static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
 889 {
 890         struct iwl_bt_iterator_data data = {
 891                 .mvm = mvm,
 892                 .notif = &mvm->last_bt_notif,
 893         };
 894         struct iwl_bt_coex_ci_cmd cmd = {};
 895         u8 ci_bw_idx;
 896
 897         /* Ignore updates if we are in force mode */
 898         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
 899                 return;
 900
 901         rcu_read_lock();
 902         ieee80211_iterate_active_interfaces_atomic(
 903                                         mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 904                                         iwl_mvm_bt_notif_iterator, &data);
 905
 906         if (data.primary) {
 907                 struct ieee80211_chanctx_conf *chan = data.primary;
 908                 if (WARN_ON(!chan->def.chan)) {
 909                         rcu_read_unlock();
 910                         return;
 911                 }
 912
 913                 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
 914                         ci_bw_idx = 0;
 915                 } else {
 916                         if (chan->def.center_freq1 >
 917                             chan->def.chan->center_freq)
 918                                 ci_bw_idx = 2;
 919                         else
 920                                 ci_bw_idx = 1;
 921                 }
 922
 923                 cmd.bt_primary_ci =
 924                         iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
 925                 cmd.primary_ch_phy_id =
 926                         cpu_to_le32(*((u16 *)data.primary->drv_priv));
 927         }
 928
 929         if (data.secondary) {
 930                 struct ieee80211_chanctx_conf *chan = data.secondary;
 931                 if (WARN_ON(!data.secondary->def.chan)) {
 932                         rcu_read_unlock();
 933                         return;
 934                 }
 935
 936                 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
 937                         ci_bw_idx = 0;
 938                 } else {
 939                         if (chan->def.center_freq1 >
 940                             chan->def.chan->center_freq)
 941                                 ci_bw_idx = 2;
 942                         else
 943                                 ci_bw_idx = 1;
 944                 }
 945
 946                 cmd.bt_secondary_ci =
 947                         iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
 948                 cmd.secondary_ch_phy_id =
 949                         cpu_to_le32(*((u16 *)data.secondary->drv_priv));
 950         }
 951
 952         rcu_read_unlock();
 953
 954         /* Don't spam the fw with the same command over and over */
 955         if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) {
 956                 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0,
 957                                          sizeof(cmd), &cmd))
 958                         IWL_ERR(mvm, "Failed to send BT_CI cmd\n");
 959                 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd));
 960         }
 961
 962         if (iwl_mvm_bt_udpate_sw_boost(mvm))
 963                 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
 964 }
 965
 966 int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
 967                              struct iwl_rx_cmd_buffer *rxb,
 968                              struct iwl_device_cmd *dev_cmd)
 969 {
 970         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 971         struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data;
 972
 973         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
 974                 return iwl_mvm_rx_bt_coex_notif_old(mvm, rxb, dev_cmd);
 975
 976         IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
 977         IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
 978         IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
 979                        le32_to_cpu(notif->primary_ch_lut));
 980         IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
 981                        le32_to_cpu(notif->secondary_ch_lut));
 982         IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
 983                        le32_to_cpu(notif->bt_activity_grading));
 984
 985         /* remember this notification for future use: rssi fluctuations */
 986         memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif));
 987
 988         iwl_mvm_bt_coex_notif_handle(mvm);
 989
 990         /*
 991          * This is an async handler for a notification, returning anything other
 992          * than 0 doesn't make sense even if HCMD failed.
 993          */
 994         return 0;
 995 }
 996
 997 static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
 998                                    struct ieee80211_vif *vif)
 999 {
1000         struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1001         struct iwl_bt_iterator_data *data = _data;
1002         struct iwl_mvm *mvm = data->mvm;
1003
1004         struct ieee80211_sta *sta;
1005         struct iwl_mvm_sta *mvmsta;
1006
1007         struct ieee80211_chanctx_conf *chanctx_conf;
1008
1009         rcu_read_lock();
1010         chanctx_conf = rcu_dereference(vif->chanctx_conf);
1011         /* If channel context is invalid or not on 2.4GHz - don't count it */
1012         if (!chanctx_conf ||
1013             chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
1014                 rcu_read_unlock();
1015                 return;
1016         }
1017         rcu_read_unlock();
1018
1019         if (vif->type != NL80211_IFTYPE_STATION ||
1020             mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1021                 return;
1022
1023         sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1024                                         lockdep_is_held(&mvm->mutex));
1025
1026         /* This can happen if the station has been removed right now */
1027         if (IS_ERR_OR_NULL(sta))
1028                 return;
1029
1030         mvmsta = iwl_mvm_sta_from_mac80211(sta);
1031 }
1032
1033 void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1034                            enum ieee80211_rssi_event rssi_event)
1035 {
1036         struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1037         struct iwl_bt_iterator_data data = {
1038                 .mvm = mvm,
1039         };
1040         int ret;
1041
1042         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
1043                 iwl_mvm_bt_rssi_event_old(mvm, vif, rssi_event);
1044                 return;
1045         }
1046
1047         lockdep_assert_held(&mvm->mutex);
1048
1049         /* Ignore updates if we are in force mode */
1050         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1051                 return;
1052
1053         /*
1054          * Rssi update while not associated - can happen since the statistics
1055          * are handled asynchronously
1056          */
1057         if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1058                 return;
1059
1060         /* No BT - reports should be disabled */
1061         if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF)
1062                 return;
1063
1064         IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
1065                        rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
1066
1067         /*
1068          * Check if rssi is good enough for reduced Tx power, but not in loose
1069          * scheme.
1070          */
1071         if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
1072             iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
1073                 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
1074                                                   false);
1075         else
1076                 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true);
1077
1078         if (ret)
1079                 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
1080
1081         ieee80211_iterate_active_interfaces_atomic(
1082                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1083                 iwl_mvm_bt_rssi_iterator, &data);
1084
1085         if (iwl_mvm_bt_udpate_sw_boost(mvm))
1086                 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
1087 }
1088
1089 #define LINK_QUAL_AGG_TIME_LIMIT_DEF    (4000)
1090 #define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
1091
1092 u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm,
1093                                 struct ieee80211_sta *sta)
1094 {
1095         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1096         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
1097         struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->phy_ctxt;
1098         enum iwl_bt_coex_lut_type lut_type;
1099
1100         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
1101                 return iwl_mvm_coex_agg_time_limit_old(mvm, sta);
1102
1103         if (IWL_COEX_IS_TTC_ON(mvm->last_bt_notif.ttc_rrc_status, phy_ctxt->id))
1104                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1105
1106         if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
1107             BT_HIGH_TRAFFIC)
1108                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1109
1110         lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1111
1112         if (lut_type == BT_COEX_LOOSE_LUT || lut_type == BT_COEX_INVALID_LUT)
1113                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1114
1115         /* tight coex, high bt traffic, reduce AGG time limit */
1116         return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
1117 }
1118
1119 bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
1120                                      struct ieee80211_sta *sta)
1121 {
1122         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1123         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
1124         struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->phy_ctxt;
1125         enum iwl_bt_coex_lut_type lut_type;
1126
1127         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
1128                 return iwl_mvm_bt_coex_is_mimo_allowed_old(mvm, sta);
1129
1130         if (IWL_COEX_IS_TTC_ON(mvm->last_bt_notif.ttc_rrc_status, phy_ctxt->id))
1131                 return true;
1132
1133         if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
1134             BT_HIGH_TRAFFIC)
1135                 return true;
1136
1137         /*
1138          * In Tight / TxTxDis, BT can't Rx while we Tx, so use both antennas
1139          * since BT is already killed.
1140          * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while
1141          * we Tx.
1142          * When we are in 5GHz, we'll get BT_COEX_INVALID_LUT allowing MIMO.
1143          */
1144         lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1145         return lut_type != BT_COEX_LOOSE_LUT;
1146 }
1147
1148 bool iwl_mvm_bt_coex_is_shared_ant_avail(struct iwl_mvm *mvm)
1149 {
1150         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
1151                 return iwl_mvm_bt_coex_is_shared_ant_avail_old(mvm);
1152
1153         return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF;
1154 }
1155
1156 bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm,
1157                                     enum ieee80211_band band)
1158 {
1159         u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading);
1160
1161         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
1162                 return iwl_mvm_bt_coex_is_tpc_allowed_old(mvm, band);
1163
1164         if (band != IEEE80211_BAND_2GHZ)
1165                 return false;
1166
1167         return bt_activity >= BT_LOW_TRAFFIC;
1168 }
1169
1170 u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
1171                            struct ieee80211_tx_info *info, u8 ac)
1172 {
1173         __le16 fc = hdr->frame_control;
1174
1175         if (info->band != IEEE80211_BAND_2GHZ)
1176                 return 0;
1177
1178         if (unlikely(mvm->bt_tx_prio))
1179                 return mvm->bt_tx_prio - 1;
1180
1181         /* High prio packet (wrt. BT coex) if it is EAPOL, MCAST or MGMT */
1182         if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO ||
1183              is_multicast_ether_addr(hdr->addr1) ||
1184              ieee80211_is_ctl(fc) || ieee80211_is_mgmt(fc) ||
1185              ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc))
1186                 return 3;
1187
1188         switch (ac) {
1189         case IEEE80211_AC_BE:
1190                 return 1;
1191         case IEEE80211_AC_VO:
1192                 return 3;
1193         case IEEE80211_AC_VI:
1194                 return 2;
1195         default:
1196                 break;
1197         }
1198
1199         return 0;
1200 }
1201
1202 void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm)
1203 {
1204         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
1205                 iwl_mvm_bt_coex_vif_change_old(mvm);
1206                 return;
1207         }
1208
1209         iwl_mvm_bt_coex_notif_handle(mvm);
1210 }
1211
1212 int iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm,
1213                                   struct iwl_rx_cmd_buffer *rxb,
1214                                   struct iwl_device_cmd *dev_cmd)
1215 {
1216         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1217         u32 ant_isolation = le32_to_cpup((void *)pkt->data);
1218         struct iwl_bt_coex_corun_lut_update_cmd cmd = {};
1219         u8 __maybe_unused lower_bound, upper_bound;
1220         u8 lut;
1221
1222         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
1223                 return iwl_mvm_rx_ant_coupling_notif_old(mvm, rxb, dev_cmd);
1224
1225         if (!IWL_MVM_BT_COEX_CORUNNING)
1226                 return 0;
1227
1228         lockdep_assert_held(&mvm->mutex);
1229
1230         /* Ignore updates if we are in force mode */
1231         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1232                 return 0;
1233
1234         if (ant_isolation ==  mvm->last_ant_isol)
1235                 return 0;
1236
1237         for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++)
1238                 if (ant_isolation < antenna_coupling_ranges[lut + 1].range)
1239                         break;
1240
1241         lower_bound = antenna_coupling_ranges[lut].range;
1242
1243         if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1)
1244                 upper_bound = antenna_coupling_ranges[lut + 1].range;
1245         else
1246                 upper_bound = antenna_coupling_ranges[lut].range;
1247
1248         IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n",
1249                        ant_isolation, lower_bound, upper_bound, lut);
1250
1251         mvm->last_ant_isol = ant_isolation;
1252
1253         if (mvm->last_corun_lut == lut)
1254                 return 0;
1255
1256         mvm->last_corun_lut = lut;
1257
1258         /* For the moment, use the same LUT for 20GHz and 40GHz */
1259         memcpy(&cmd.corun_lut20, antenna_coupling_ranges[lut].lut20,
1260                sizeof(cmd.corun_lut20));
1261
1262         memcpy(&cmd.corun_lut40, antenna_coupling_ranges[lut].lut20,
1263                sizeof(cmd.corun_lut40));
1264
1265         return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_CORUN_LUT, 0,
1266                                     sizeof(cmd), &cmd);
1267 }