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

   1 /******************************************************************************
   2  *
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   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
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  33  *
  34  * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved.
  35  * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
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  39  * modification, are permitted provided that the following conditions
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  46  *    the documentation and/or other materials provided with the
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  50  *    from this software without specific prior written permission.
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  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,
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  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
  79 static 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 static int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm)
 106 {
 107         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
 108                 return 0;
 109
 110         return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, 0,
 111                                     sizeof(struct iwl_bt_coex_prio_tbl_cmd),
 112                                     &iwl_bt_prio_tbl);
 113 }
 114
 115 static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = {
 116         cpu_to_le32(0xf0f0f0f0), /* 50% */
 117         cpu_to_le32(0xc0c0c0c0), /* 25% */
 118         cpu_to_le32(0xfcfcfcfc), /* 75% */
 119         cpu_to_le32(0xfefefefe), /* 87.5% */
 120 };
 121
 122 static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
 123         {
 124                 cpu_to_le32(0x40000000),
 125                 cpu_to_le32(0x00000000),
 126                 cpu_to_le32(0x44000000),
 127                 cpu_to_le32(0x00000000),
 128                 cpu_to_le32(0x40000000),
 129                 cpu_to_le32(0x00000000),
 130                 cpu_to_le32(0x44000000),
 131                 cpu_to_le32(0x00000000),
 132                 cpu_to_le32(0xc0004000),
 133                 cpu_to_le32(0xf0005000),
 134                 cpu_to_le32(0xc0004000),
 135                 cpu_to_le32(0xf0005000),
 136         },
 137         {
 138                 cpu_to_le32(0x40000000),
 139                 cpu_to_le32(0x00000000),
 140                 cpu_to_le32(0x44000000),
 141                 cpu_to_le32(0x00000000),
 142                 cpu_to_le32(0x40000000),
 143                 cpu_to_le32(0x00000000),
 144                 cpu_to_le32(0x44000000),
 145                 cpu_to_le32(0x00000000),
 146                 cpu_to_le32(0xc0004000),
 147                 cpu_to_le32(0xf0005000),
 148                 cpu_to_le32(0xc0004000),
 149                 cpu_to_le32(0xf0005000),
 150         },
 151         {
 152                 cpu_to_le32(0x40000000),
 153                 cpu_to_le32(0x00000000),
 154                 cpu_to_le32(0x44000000),
 155                 cpu_to_le32(0x00000000),
 156                 cpu_to_le32(0x40000000),
 157                 cpu_to_le32(0x00000000),
 158                 cpu_to_le32(0x44000000),
 159                 cpu_to_le32(0x00000000),
 160                 cpu_to_le32(0xc0004000),
 161                 cpu_to_le32(0xf0005000),
 162                 cpu_to_le32(0xc0004000),
 163                 cpu_to_le32(0xf0005000),
 164         },
 165 };
 166
 167 static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
 168         {
 169                 /* Tight */
 170                 cpu_to_le32(0xaaaaaaaa),
 171                 cpu_to_le32(0xaaaaaaaa),
 172                 cpu_to_le32(0xaeaaaaaa),
 173                 cpu_to_le32(0xaaaaaaaa),
 174                 cpu_to_le32(0xcc00ff28),
 175                 cpu_to_le32(0x0000aaaa),
 176                 cpu_to_le32(0xcc00aaaa),
 177                 cpu_to_le32(0x0000aaaa),
 178                 cpu_to_le32(0xc0004000),
 179                 cpu_to_le32(0x00004000),
 180                 cpu_to_le32(0xf0005000),
 181                 cpu_to_le32(0xf0005000),
 182         },
 183         {
 184                 /* Loose */
 185                 cpu_to_le32(0xaaaaaaaa),
 186                 cpu_to_le32(0xaaaaaaaa),
 187                 cpu_to_le32(0xaaaaaaaa),
 188                 cpu_to_le32(0xaaaaaaaa),
 189                 cpu_to_le32(0xcc00ff28),
 190                 cpu_to_le32(0x0000aaaa),
 191                 cpu_to_le32(0xcc00aaaa),
 192                 cpu_to_le32(0x0000aaaa),
 193                 cpu_to_le32(0x00000000),
 194                 cpu_to_le32(0x00000000),
 195                 cpu_to_le32(0xf0005000),
 196                 cpu_to_le32(0xf0005000),
 197         },
 198         {
 199                 /* Tx Tx disabled */
 200                 cpu_to_le32(0xaaaaaaaa),
 201                 cpu_to_le32(0xaaaaaaaa),
 202                 cpu_to_le32(0xeeaaaaaa),
 203                 cpu_to_le32(0xaaaaaaaa),
 204                 cpu_to_le32(0xcc00ff28),
 205                 cpu_to_le32(0x0000aaaa),
 206                 cpu_to_le32(0xcc00aaaa),
 207                 cpu_to_le32(0x0000aaaa),
 208                 cpu_to_le32(0xc0004000),
 209                 cpu_to_le32(0xc0004000),
 210                 cpu_to_le32(0xf0005000),
 211                 cpu_to_le32(0xf0005000),
 212         },
 213 };
 214
 215 /* 20MHz / 40MHz below / 40Mhz above*/
 216 static const __le64 iwl_ci_mask[][3] = {
 217         /* dummy entry for channel 0 */
 218         {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
 219         {
 220                 cpu_to_le64(0x0000001FFFULL),
 221                 cpu_to_le64(0x0ULL),
 222                 cpu_to_le64(0x00007FFFFFULL),
 223         },
 224         {
 225                 cpu_to_le64(0x000000FFFFULL),
 226                 cpu_to_le64(0x0ULL),
 227                 cpu_to_le64(0x0003FFFFFFULL),
 228         },
 229         {
 230                 cpu_to_le64(0x000003FFFCULL),
 231                 cpu_to_le64(0x0ULL),
 232                 cpu_to_le64(0x000FFFFFFCULL),
 233         },
 234         {
 235                 cpu_to_le64(0x00001FFFE0ULL),
 236                 cpu_to_le64(0x0ULL),
 237                 cpu_to_le64(0x007FFFFFE0ULL),
 238         },
 239         {
 240                 cpu_to_le64(0x00007FFF80ULL),
 241                 cpu_to_le64(0x00007FFFFFULL),
 242                 cpu_to_le64(0x01FFFFFF80ULL),
 243         },
 244         {
 245                 cpu_to_le64(0x0003FFFC00ULL),
 246                 cpu_to_le64(0x0003FFFFFFULL),
 247                 cpu_to_le64(0x0FFFFFFC00ULL),
 248         },
 249         {
 250                 cpu_to_le64(0x000FFFF000ULL),
 251                 cpu_to_le64(0x000FFFFFFCULL),
 252                 cpu_to_le64(0x3FFFFFF000ULL),
 253         },
 254         {
 255                 cpu_to_le64(0x007FFF8000ULL),
 256                 cpu_to_le64(0x007FFFFFE0ULL),
 257                 cpu_to_le64(0xFFFFFF8000ULL),
 258         },
 259         {
 260                 cpu_to_le64(0x01FFFE0000ULL),
 261                 cpu_to_le64(0x01FFFFFF80ULL),
 262                 cpu_to_le64(0xFFFFFE0000ULL),
 263         },
 264         {
 265                 cpu_to_le64(0x0FFFF00000ULL),
 266                 cpu_to_le64(0x0FFFFFFC00ULL),
 267                 cpu_to_le64(0x0ULL),
 268         },
 269         {
 270                 cpu_to_le64(0x3FFFC00000ULL),
 271                 cpu_to_le64(0x3FFFFFF000ULL),
 272                 cpu_to_le64(0x0)
 273         },
 274         {
 275                 cpu_to_le64(0xFFFE000000ULL),
 276                 cpu_to_le64(0xFFFFFF8000ULL),
 277                 cpu_to_le64(0x0)
 278         },
 279         {
 280                 cpu_to_le64(0xFFF8000000ULL),
 281                 cpu_to_le64(0xFFFFFE0000ULL),
 282                 cpu_to_le64(0x0)
 283         },
 284         {
 285                 cpu_to_le64(0xFFC0000000ULL),
 286                 cpu_to_le64(0x0ULL),
 287                 cpu_to_le64(0x0ULL)
 288         },
 289 };
 290
 291 enum iwl_bt_kill_msk {
 292         BT_KILL_MSK_DEFAULT,
 293         BT_KILL_MSK_NEVER,
 294         BT_KILL_MSK_ALWAYS,
 295         BT_KILL_MSK_MAX,
 296 };
 297
 298 static const u32 iwl_bt_ctl_kill_msk[BT_KILL_MSK_MAX] = {
 299         [BT_KILL_MSK_DEFAULT] = 0xfffffc00,
 300         [BT_KILL_MSK_NEVER] = 0xffffffff,
 301         [BT_KILL_MSK_ALWAYS] = 0,
 302 };
 303
 304 static const u8 iwl_bt_cts_kill_msk[BT_MAX_AG][BT_COEX_MAX_LUT] = {
 305         {
 306                 BT_KILL_MSK_ALWAYS,
 307                 BT_KILL_MSK_ALWAYS,
 308                 BT_KILL_MSK_ALWAYS,
 309         },
 310         {
 311                 BT_KILL_MSK_NEVER,
 312                 BT_KILL_MSK_NEVER,
 313                 BT_KILL_MSK_NEVER,
 314         },
 315         {
 316                 BT_KILL_MSK_NEVER,
 317                 BT_KILL_MSK_NEVER,
 318                 BT_KILL_MSK_NEVER,
 319         },
 320         {
 321                 BT_KILL_MSK_DEFAULT,
 322                 BT_KILL_MSK_NEVER,
 323                 BT_KILL_MSK_DEFAULT,
 324         },
 325 };
 326
 327 static const u8 iwl_bt_ack_kill_msk[BT_MAX_AG][BT_COEX_MAX_LUT] = {
 328         {
 329                 BT_KILL_MSK_ALWAYS,
 330                 BT_KILL_MSK_ALWAYS,
 331                 BT_KILL_MSK_ALWAYS,
 332         },
 333         {
 334                 BT_KILL_MSK_ALWAYS,
 335                 BT_KILL_MSK_ALWAYS,
 336                 BT_KILL_MSK_ALWAYS,
 337         },
 338         {
 339                 BT_KILL_MSK_ALWAYS,
 340                 BT_KILL_MSK_ALWAYS,
 341                 BT_KILL_MSK_ALWAYS,
 342         },
 343         {
 344                 BT_KILL_MSK_DEFAULT,
 345                 BT_KILL_MSK_ALWAYS,
 346                 BT_KILL_MSK_DEFAULT,
 347         },
 348 };
 349
 350 struct corunning_block_luts {
 351         u8 range;
 352         __le32 lut20[BT_COEX_CORUN_LUT_SIZE];
 353 };
 354
 355 /*
 356  * Ranges for the antenna coupling calibration / co-running block LUT:
 357  *              LUT0: [ 0, 12[
 358  *              LUT1: [12, 20[
 359  *              LUT2: [20, 21[
 360  *              LUT3: [21, 23[
 361  *              LUT4: [23, 27[
 362  *              LUT5: [27, 30[
 363  *              LUT6: [30, 32[
 364  *              LUT7: [32, 33[
 365  *              LUT8: [33, - [
 366  */
 367 static const struct corunning_block_luts antenna_coupling_ranges[] = {
 368         {
 369                 .range = 0,
 370                 .lut20 = {
 371                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 372                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 373                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 374                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 375                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 376                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 377                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 378                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 379                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 380                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 381                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 382                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 383                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 384                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 385                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 386                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 387                 },
 388         },
 389         {
 390                 .range = 12,
 391                 .lut20 = {
 392                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 393                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 394                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 395                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 396                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 397                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 398                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 399                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 400                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 401                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 402                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 403                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 404                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 405                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 406                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 407                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 408                 },
 409         },
 410         {
 411                 .range = 20,
 412                 .lut20 = {
 413                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 414                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 415                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 416                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 417                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 418                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 419                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 420                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 421                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 422                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 423                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 424                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 425                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 426                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 427                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 428                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 429                 },
 430         },
 431         {
 432                 .range = 21,
 433                 .lut20 = {
 434                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 435                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 436                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 437                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 438                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 439                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 440                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 441                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 442                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 443                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 444                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 445                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 446                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 447                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 448                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 449                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 450                 },
 451         },
 452         {
 453                 .range = 23,
 454                 .lut20 = {
 455                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 456                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 457                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 458                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 459                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 460                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 461                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 462                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 463                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 464                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 465                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 466                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 467                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 468                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 469                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 470                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 471                 },
 472         },
 473         {
 474                 .range = 27,
 475                 .lut20 = {
 476                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 477                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 478                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 479                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 480                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 481                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 482                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 483                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 484                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 485                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 486                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 487                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 488                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 489                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 490                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 491                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 492                 },
 493         },
 494         {
 495                 .range = 30,
 496                 .lut20 = {
 497                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 498                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 499                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 500                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 501                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 502                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 503                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 504                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 505                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 506                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 507                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 508                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 509                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 510                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 511                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 512                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 513                 },
 514         },
 515         {
 516                 .range = 32,
 517                 .lut20 = {
 518                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 519                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 520                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 521                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 522                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 523                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 524                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 525                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 526                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 527                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 528                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 529                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 530                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 531                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 532                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 533                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 534                 },
 535         },
 536         {
 537                 .range = 33,
 538                 .lut20 = {
 539                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 540                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 541                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 542                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 543                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 544                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 545                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 546                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 547                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 548                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 549                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 550                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 551                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 552                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 553                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 554                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 555                 },
 556         },
 557 };
 558
 559 static enum iwl_bt_coex_lut_type
 560 iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
 561 {
 562         struct ieee80211_chanctx_conf *chanctx_conf;
 563         enum iwl_bt_coex_lut_type ret;
 564         u16 phy_ctx_id;
 565
 566         /*
 567          * Checking that we hold mvm->mutex is a good idea, but the rate
 568          * control can't acquire the mutex since it runs in Tx path.
 569          * So this is racy in that case, but in the worst case, the AMPDU
 570          * size limit will be wrong for a short time which is not a big
 571          * issue.
 572          */
 573
 574         rcu_read_lock();
 575
 576         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 577
 578         if (!chanctx_conf ||
 579             chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
 580                 rcu_read_unlock();
 581                 return BT_COEX_INVALID_LUT;
 582         }
 583
 584         ret = BT_COEX_TX_DIS_LUT;
 585
 586         if (mvm->cfg->bt_shared_single_ant) {
 587                 rcu_read_unlock();
 588                 return ret;
 589         }
 590
 591         phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
 592
 593         if (mvm->last_bt_ci_cmd_old.primary_ch_phy_id == phy_ctx_id)
 594                 ret = le32_to_cpu(mvm->last_bt_notif_old.primary_ch_lut);
 595         else if (mvm->last_bt_ci_cmd_old.secondary_ch_phy_id == phy_ctx_id)
 596                 ret = le32_to_cpu(mvm->last_bt_notif_old.secondary_ch_lut);
 597         /* else - default = TX TX disallowed */
 598
 599         rcu_read_unlock();
 600
 601         return ret;
 602 }
 603
 604 int iwl_send_bt_init_conf_old(struct iwl_mvm *mvm)
 605 {
 606         struct iwl_bt_coex_cmd_old *bt_cmd;
 607         struct iwl_host_cmd cmd = {
 608                 .id = BT_CONFIG,
 609                 .len = { sizeof(*bt_cmd), },
 610                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 611         };
 612         int ret;
 613         u32 flags;
 614
 615         ret = iwl_send_bt_prio_tbl(mvm);
 616         if (ret)
 617                 return ret;
 618
 619         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
 620         if (!bt_cmd)
 621                 return -ENOMEM;
 622         cmd.data[0] = bt_cmd;
 623
 624         lockdep_assert_held(&mvm->mutex);
 625
 626         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) {
 627                 switch (mvm->bt_force_ant_mode) {
 628                 case BT_FORCE_ANT_AUTO:
 629                         flags = BT_COEX_AUTO_OLD;
 630                         break;
 631                 case BT_FORCE_ANT_BT:
 632                         flags = BT_COEX_BT_OLD;
 633                         break;
 634                 case BT_FORCE_ANT_WIFI:
 635                         flags = BT_COEX_WIFI_OLD;
 636                         break;
 637                 default:
 638                         WARN_ON(1);
 639                         flags = 0;
 640                 }
 641
 642                 bt_cmd->flags = cpu_to_le32(flags);
 643                 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE);
 644                 goto send_cmd;
 645         }
 646
 647         bt_cmd->max_kill = 5;
 648         bt_cmd->bt4_antenna_isolation_thr =
 649                 IWL_MVM_BT_COEX_ANTENNA_COUPLING_THRS;
 650         bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling;
 651         bt_cmd->bt4_tx_tx_delta_freq_thr = 15;
 652         bt_cmd->bt4_tx_rx_max_freq0 = 15;
 653         bt_cmd->override_primary_lut = BT_COEX_INVALID_LUT;
 654         bt_cmd->override_secondary_lut = BT_COEX_INVALID_LUT;
 655
 656         flags = iwlwifi_mod_params.bt_coex_active ?
 657                         BT_COEX_NW_OLD : BT_COEX_DISABLE_OLD;
 658         bt_cmd->flags = cpu_to_le32(flags);
 659
 660         bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE |
 661                                             BT_VALID_BT_PRIO_BOOST |
 662                                             BT_VALID_MAX_KILL |
 663                                             BT_VALID_3W_TMRS |
 664                                             BT_VALID_KILL_ACK |
 665                                             BT_VALID_KILL_CTS |
 666                                             BT_VALID_REDUCED_TX_POWER |
 667                                             BT_VALID_LUT |
 668                                             BT_VALID_WIFI_RX_SW_PRIO_BOOST |
 669                                             BT_VALID_WIFI_TX_SW_PRIO_BOOST |
 670                                             BT_VALID_ANT_ISOLATION |
 671                                             BT_VALID_ANT_ISOLATION_THRS |
 672                                             BT_VALID_TXTX_DELTA_FREQ_THRS |
 673                                             BT_VALID_TXRX_MAX_FREQ_0 |
 674                                             BT_VALID_SYNC_TO_SCO |
 675                                             BT_VALID_TTC |
 676                                             BT_VALID_RRC);
 677
 678         if (IWL_MVM_BT_COEX_SYNC2SCO)
 679                 bt_cmd->flags |= cpu_to_le32(BT_COEX_SYNC2SCO);
 680
 681         if (iwl_mvm_bt_is_plcr_supported(mvm)) {
 682                 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_CORUN_LUT_20 |
 683                                                      BT_VALID_CORUN_LUT_40);
 684                 bt_cmd->flags |= cpu_to_le32(BT_COEX_CORUNNING);
 685         }
 686
 687         if (IWL_MVM_BT_COEX_MPLUT) {
 688                 bt_cmd->flags |= cpu_to_le32(BT_COEX_MPLUT);
 689                 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_MULTI_PRIO_LUT);
 690         }
 691
 692         if (IWL_MVM_BT_COEX_TTC)
 693                 bt_cmd->flags |= cpu_to_le32(BT_COEX_TTC);
 694
 695         if (iwl_mvm_bt_is_rrc_supported(mvm))
 696                 bt_cmd->flags |= cpu_to_le32(BT_COEX_RRC);
 697
 698         if (mvm->cfg->bt_shared_single_ant)
 699                 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant,
 700                        sizeof(iwl_single_shared_ant));
 701         else
 702                 memcpy(&bt_cmd->decision_lut, iwl_combined_lookup,
 703                        sizeof(iwl_combined_lookup));
 704
 705         /* Take first Co-running block LUT to get started */
 706         memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[0].lut20,
 707                sizeof(bt_cmd->bt4_corun_lut20));
 708         memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[0].lut20,
 709                sizeof(bt_cmd->bt4_corun_lut40));
 710
 711         memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost,
 712                sizeof(iwl_bt_prio_boost));
 713         bt_cmd->bt4_multiprio_lut[0] = cpu_to_le32(IWL_MVM_BT_COEX_MPLUT_REG0);
 714         bt_cmd->bt4_multiprio_lut[1] = cpu_to_le32(IWL_MVM_BT_COEX_MPLUT_REG1);
 715
 716 send_cmd:
 717         memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
 718         memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
 719
 720         ret = iwl_mvm_send_cmd(mvm, &cmd);
 721
 722         kfree(bt_cmd);
 723         return ret;
 724 }
 725
 726 static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm)
 727 {
 728         struct iwl_bt_coex_profile_notif_old *notif = &mvm->last_bt_notif_old;
 729         u32 primary_lut = le32_to_cpu(notif->primary_ch_lut);
 730         u32 ag = le32_to_cpu(notif->bt_activity_grading);
 731         struct iwl_bt_coex_cmd_old *bt_cmd;
 732         u8 ack_kill_msk, cts_kill_msk;
 733         struct iwl_host_cmd cmd = {
 734                 .id = BT_CONFIG,
 735                 .data[0] = &bt_cmd,
 736                 .len = { sizeof(*bt_cmd), },
 737                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 738         };
 739         int ret = 0;
 740
 741         lockdep_assert_held(&mvm->mutex);
 742
 743         ack_kill_msk = iwl_bt_ack_kill_msk[ag][primary_lut];
 744         cts_kill_msk = iwl_bt_cts_kill_msk[ag][primary_lut];
 745
 746         if (mvm->bt_ack_kill_msk[0] == ack_kill_msk &&
 747             mvm->bt_cts_kill_msk[0] == cts_kill_msk)
 748                 return 0;
 749
 750         mvm->bt_ack_kill_msk[0] = ack_kill_msk;
 751         mvm->bt_cts_kill_msk[0] = cts_kill_msk;
 752
 753         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
 754         if (!bt_cmd)
 755                 return -ENOMEM;
 756         cmd.data[0] = bt_cmd;
 757         bt_cmd->flags = cpu_to_le32(BT_COEX_NW_OLD);
 758
 759         bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ctl_kill_msk[ack_kill_msk]);
 760         bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_ctl_kill_msk[cts_kill_msk]);
 761         bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
 762                                              BT_VALID_KILL_ACK |
 763                                              BT_VALID_KILL_CTS);
 764
 765         ret = iwl_mvm_send_cmd(mvm, &cmd);
 766
 767         kfree(bt_cmd);
 768         return ret;
 769 }
 770
 771 static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
 772                                        bool enable)
 773 {
 774         struct iwl_bt_coex_cmd_old *bt_cmd;
 775         /* Send ASYNC since this can be sent from an atomic context */
 776         struct iwl_host_cmd cmd = {
 777                 .id = BT_CONFIG,
 778                 .len = { sizeof(*bt_cmd), },
 779                 .dataflags = { IWL_HCMD_DFL_DUP, },
 780                 .flags = CMD_ASYNC,
 781         };
 782         struct iwl_mvm_sta *mvmsta;
 783         int ret;
 784
 785         mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
 786         if (!mvmsta)
 787                 return 0;
 788
 789         /* nothing to do */
 790         if (mvmsta->bt_reduced_txpower == enable)
 791                 return 0;
 792
 793         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC);
 794         if (!bt_cmd)
 795                 return -ENOMEM;
 796         cmd.data[0] = bt_cmd;
 797         bt_cmd->flags = cpu_to_le32(BT_COEX_NW_OLD);
 798
 799         bt_cmd->valid_bit_msk =
 800                 cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER);
 801         bt_cmd->bt_reduced_tx_power = sta_id;
 802
 803         if (enable)
 804                 bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT;
 805
 806         IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
 807                        enable ? "en" : "dis", sta_id);
 808
 809         mvmsta->bt_reduced_txpower = enable;
 810
 811         ret = iwl_mvm_send_cmd(mvm, &cmd);
 812
 813         kfree(bt_cmd);
 814         return ret;
 815 }
 816
 817 struct iwl_bt_iterator_data {
 818         struct iwl_bt_coex_profile_notif_old *notif;
 819         struct iwl_mvm *mvm;
 820         struct ieee80211_chanctx_conf *primary;
 821         struct ieee80211_chanctx_conf *secondary;
 822         bool primary_ll;
 823 };
 824
 825 static inline
 826 void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
 827                                        struct ieee80211_vif *vif,
 828                                        bool enable, int rssi)
 829 {
 830         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 831
 832         mvmvif->bf_data.last_bt_coex_event = rssi;
 833         mvmvif->bf_data.bt_coex_max_thold =
 834                 enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0;
 835         mvmvif->bf_data.bt_coex_min_thold =
 836                 enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0;
 837 }
 838
 839 /* must be called under rcu_read_lock */
 840 static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 841                                       struct ieee80211_vif *vif)
 842 {
 843         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 844         struct iwl_bt_iterator_data *data = _data;
 845         struct iwl_mvm *mvm = data->mvm;
 846         struct ieee80211_chanctx_conf *chanctx_conf;
 847         enum ieee80211_smps_mode smps_mode;
 848         u32 bt_activity_grading;
 849         int ave_rssi;
 850
 851         lockdep_assert_held(&mvm->mutex);
 852
 853         switch (vif->type) {
 854         case NL80211_IFTYPE_STATION:
 855                 /* default smps_mode for BSS / P2P client is AUTOMATIC */
 856                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 857                 break;
 858         case NL80211_IFTYPE_AP:
 859                 if (!mvmvif->ap_ibss_active)
 860                         return;
 861                 break;
 862         default:
 863                 return;
 864         }
 865
 866         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 867
 868         /* If channel context is invalid or not on 2.4GHz .. */
 869         if ((!chanctx_conf ||
 870              chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) {
 871                 if (vif->type == NL80211_IFTYPE_STATION) {
 872                         /* ... relax constraints and disable rssi events */
 873                         iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 874                                             smps_mode);
 875                         iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
 876                                                     false);
 877                         iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 878                 }
 879                 return;
 880         }
 881
 882         bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
 883         if (bt_activity_grading >= BT_HIGH_TRAFFIC)
 884                 smps_mode = IEEE80211_SMPS_STATIC;
 885         else if (bt_activity_grading >= BT_LOW_TRAFFIC)
 886                 smps_mode = vif->type == NL80211_IFTYPE_AP ?
 887                                 IEEE80211_SMPS_OFF :
 888                                 IEEE80211_SMPS_DYNAMIC;
 889
 890         /* relax SMPS contraints for next association */
 891         if (!vif->bss_conf.assoc)
 892                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 893
 894         if (mvmvif->phy_ctxt &&
 895             data->notif->rrc_enabled & BIT(mvmvif->phy_ctxt->id))
 896                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 897
 898         IWL_DEBUG_COEX(data->mvm,
 899                        "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n",
 900                        mvmvif->id, data->notif->bt_status, bt_activity_grading,
 901                        smps_mode);
 902
 903         if (vif->type == NL80211_IFTYPE_STATION)
 904                 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 905                                     smps_mode);
 906
 907         /* low latency is always primary */
 908         if (iwl_mvm_vif_low_latency(mvmvif)) {
 909                 data->primary_ll = true;
 910
 911                 data->secondary = data->primary;
 912                 data->primary = chanctx_conf;
 913         }
 914
 915         if (vif->type == NL80211_IFTYPE_AP) {
 916                 if (!mvmvif->ap_ibss_active)
 917                         return;
 918
 919                 if (chanctx_conf == data->primary)
 920                         return;
 921
 922                 if (!data->primary_ll) {
 923                         /*
 924                          * downgrade the current primary no matter what its
 925                          * type is.
 926                          */
 927                         data->secondary = data->primary;
 928                         data->primary = chanctx_conf;
 929                 } else {
 930                         /* there is low latency vif - we will be secondary */
 931                         data->secondary = chanctx_conf;
 932                 }
 933                 return;
 934         }
 935
 936         /*
 937          * STA / P2P Client, try to be primary if first vif. If we are in low
 938          * latency mode, we are already in primary and just don't do much
 939          */
 940         if (!data->primary || data->primary == chanctx_conf)
 941                 data->primary = chanctx_conf;
 942         else if (!data->secondary)
 943                 /* if secondary is not NULL, it might be a GO */
 944                 data->secondary = chanctx_conf;
 945
 946         /*
 947          * don't reduce the Tx power if one of these is true:
 948          *  we are in LOOSE
 949          *  single share antenna product
 950          *  BT is active
 951          *  we are associated
 952          */
 953         if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
 954             mvm->cfg->bt_shared_single_ant || !vif->bss_conf.assoc ||
 955             !data->notif->bt_status) {
 956                 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false);
 957                 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 958                 return;
 959         }
 960
 961         /* try to get the avg rssi from fw */
 962         ave_rssi = mvmvif->bf_data.ave_beacon_signal;
 963
 964         /* if the RSSI isn't valid, fake it is very low */
 965         if (!ave_rssi)
 966                 ave_rssi = -100;
 967         if (ave_rssi > -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH) {
 968                 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true))
 969                         IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 970         } else if (ave_rssi < -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH) {
 971                 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
 972                         IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 973         }
 974
 975         /* Begin to monitor the RSSI: it may influence the reduced Tx power */
 976         iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
 977 }
 978
 979 static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
 980 {
 981         struct iwl_bt_iterator_data data = {
 982                 .mvm = mvm,
 983                 .notif = &mvm->last_bt_notif_old,
 984         };
 985         struct iwl_bt_coex_ci_cmd_old cmd = {};
 986         u8 ci_bw_idx;
 987
 988         /* Ignore updates if we are in force mode */
 989         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
 990                 return;
 991
 992         rcu_read_lock();
 993         ieee80211_iterate_active_interfaces_atomic(
 994                                         mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 995                                         iwl_mvm_bt_notif_iterator, &data);
 996
 997         if (data.primary) {
 998                 struct ieee80211_chanctx_conf *chan = data.primary;
 999
1000                 if (WARN_ON(!chan->def.chan)) {
1001                         rcu_read_unlock();
1002                         return;
1003                 }
1004
1005                 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
1006                         ci_bw_idx = 0;
1007                         cmd.co_run_bw_primary = 0;
1008                 } else {
1009                         cmd.co_run_bw_primary = 1;
1010                         if (chan->def.center_freq1 >
1011                             chan->def.chan->center_freq)
1012                                 ci_bw_idx = 2;
1013                         else
1014                                 ci_bw_idx = 1;
1015                 }
1016
1017                 cmd.bt_primary_ci =
1018                         iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
1019                 cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv);
1020         }
1021
1022         if (data.secondary) {
1023                 struct ieee80211_chanctx_conf *chan = data.secondary;
1024
1025                 if (WARN_ON(!data.secondary->def.chan)) {
1026                         rcu_read_unlock();
1027                         return;
1028                 }
1029
1030                 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
1031                         ci_bw_idx = 0;
1032                         cmd.co_run_bw_secondary = 0;
1033                 } else {
1034                         cmd.co_run_bw_secondary = 1;
1035                         if (chan->def.center_freq1 >
1036                             chan->def.chan->center_freq)
1037                                 ci_bw_idx = 2;
1038                         else
1039                                 ci_bw_idx = 1;
1040                 }
1041
1042                 cmd.bt_secondary_ci =
1043                         iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
1044                 cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv);
1045         }
1046
1047         rcu_read_unlock();
1048
1049         /* Don't spam the fw with the same command over and over */
1050         if (memcmp(&cmd, &mvm->last_bt_ci_cmd_old, sizeof(cmd))) {
1051                 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0,
1052                                          sizeof(cmd), &cmd))
1053                         IWL_ERR(mvm, "Failed to send BT_CI cmd\n");
1054                 memcpy(&mvm->last_bt_ci_cmd_old, &cmd, sizeof(cmd));
1055         }
1056
1057         if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm))
1058                 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
1059 }
1060
1061 int iwl_mvm_rx_bt_coex_notif_old(struct iwl_mvm *mvm,
1062                                  struct iwl_rx_cmd_buffer *rxb,
1063                                  struct iwl_device_cmd *dev_cmd)
1064 {
1065         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1066         struct iwl_bt_coex_profile_notif_old *notif = (void *)pkt->data;
1067
1068         IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
1069         IWL_DEBUG_COEX(mvm, "\tBT status: %s\n",
1070                        notif->bt_status ? "ON" : "OFF");
1071         IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn);
1072         IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
1073         IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
1074                        le32_to_cpu(notif->primary_ch_lut));
1075         IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
1076                        le32_to_cpu(notif->secondary_ch_lut));
1077         IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
1078                        le32_to_cpu(notif->bt_activity_grading));
1079         IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n",
1080                        notif->bt_agg_traffic_load);
1081
1082         /* remember this notification for future use: rssi fluctuations */
1083         memcpy(&mvm->last_bt_notif_old, notif, sizeof(mvm->last_bt_notif_old));
1084
1085         iwl_mvm_bt_coex_notif_handle(mvm);
1086
1087         /*
1088          * This is an async handler for a notification, returning anything other
1089          * than 0 doesn't make sense even if HCMD failed.
1090          */
1091         return 0;
1092 }
1093
1094 static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
1095                                      struct ieee80211_vif *vif)
1096 {
1097         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1098         struct iwl_bt_iterator_data *data = _data;
1099         struct iwl_mvm *mvm = data->mvm;
1100
1101         struct ieee80211_sta *sta;
1102         struct iwl_mvm_sta *mvmsta;
1103
1104         struct ieee80211_chanctx_conf *chanctx_conf;
1105
1106         rcu_read_lock();
1107         chanctx_conf = rcu_dereference(vif->chanctx_conf);
1108         /* If channel context is invalid or not on 2.4GHz - don't count it */
1109         if (!chanctx_conf ||
1110             chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
1111                 rcu_read_unlock();
1112                 return;
1113         }
1114         rcu_read_unlock();
1115
1116         if (vif->type != NL80211_IFTYPE_STATION ||
1117             mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1118                 return;
1119
1120         sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1121                                         lockdep_is_held(&mvm->mutex));
1122
1123         /* This can happen if the station has been removed right now */
1124         if (IS_ERR_OR_NULL(sta))
1125                 return;
1126
1127         mvmsta = iwl_mvm_sta_from_mac80211(sta);
1128 }
1129
1130 void iwl_mvm_bt_rssi_event_old(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1131                                enum ieee80211_rssi_event_data rssi_event)
1132 {
1133         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1134         struct iwl_bt_iterator_data data = {
1135                 .mvm = mvm,
1136         };
1137         int ret;
1138
1139         lockdep_assert_held(&mvm->mutex);
1140
1141         /* Ignore updates if we are in force mode */
1142         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1143                 return;
1144
1145         /*
1146          * Rssi update while not associated - can happen since the statistics
1147          * are handled asynchronously
1148          */
1149         if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1150                 return;
1151
1152         /* No BT - reports should be disabled */
1153         if (!mvm->last_bt_notif_old.bt_status)
1154                 return;
1155
1156         IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
1157                        rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
1158
1159         /*
1160          * Check if rssi is good enough for reduced Tx power, but not in loose
1161          * scheme.
1162          */
1163         if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
1164             iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
1165                 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
1166                                                   false);
1167         else
1168                 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true);
1169
1170         if (ret)
1171                 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
1172
1173         ieee80211_iterate_active_interfaces_atomic(
1174                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1175                 iwl_mvm_bt_rssi_iterator, &data);
1176
1177         if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm))
1178                 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
1179 }
1180
1181 #define LINK_QUAL_AGG_TIME_LIMIT_DEF    (4000)
1182 #define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
1183
1184 u16 iwl_mvm_coex_agg_time_limit_old(struct iwl_mvm *mvm,
1185                                     struct ieee80211_sta *sta)
1186 {
1187         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1188         enum iwl_bt_coex_lut_type lut_type;
1189
1190         if (le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading) <
1191             BT_HIGH_TRAFFIC)
1192                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1193
1194         if (mvm->last_bt_notif_old.ttc_enabled)
1195                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1196
1197         lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1198
1199         if (lut_type == BT_COEX_LOOSE_LUT || lut_type == BT_COEX_INVALID_LUT)
1200                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1201
1202         /* tight coex, high bt traffic, reduce AGG time limit */
1203         return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
1204 }
1205
1206 bool iwl_mvm_bt_coex_is_mimo_allowed_old(struct iwl_mvm *mvm,
1207                                          struct ieee80211_sta *sta)
1208 {
1209         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1210         enum iwl_bt_coex_lut_type lut_type;
1211
1212         if (mvm->last_bt_notif_old.ttc_enabled)
1213                 return true;
1214
1215         if (le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading) <
1216             BT_HIGH_TRAFFIC)
1217                 return true;
1218
1219         /*
1220          * In Tight / TxTxDis, BT can't Rx while we Tx, so use both antennas
1221          * since BT is already killed.
1222          * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while
1223          * we Tx.
1224          * When we are in 5GHz, we'll get BT_COEX_INVALID_LUT allowing MIMO.
1225          */
1226         lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1227         return lut_type != BT_COEX_LOOSE_LUT;
1228 }
1229
1230 bool iwl_mvm_bt_coex_is_shared_ant_avail_old(struct iwl_mvm *mvm)
1231 {
1232         u32 ag = le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading);
1233         return ag < BT_HIGH_TRAFFIC;
1234 }
1235
1236 bool iwl_mvm_bt_coex_is_tpc_allowed_old(struct iwl_mvm *mvm,
1237                                         enum ieee80211_band band)
1238 {
1239         u32 bt_activity =
1240                 le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading);
1241
1242         if (band != IEEE80211_BAND_2GHZ)
1243                 return false;
1244
1245         return bt_activity >= BT_LOW_TRAFFIC;
1246 }
1247
1248 void iwl_mvm_bt_coex_vif_change_old(struct iwl_mvm *mvm)
1249 {
1250         iwl_mvm_bt_coex_notif_handle(mvm);
1251 }
1252
1253 int iwl_mvm_rx_ant_coupling_notif_old(struct iwl_mvm *mvm,
1254                                       struct iwl_rx_cmd_buffer *rxb,
1255                                       struct iwl_device_cmd *dev_cmd)
1256 {
1257         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1258         u32 ant_isolation = le32_to_cpup((void *)pkt->data);
1259         u8 __maybe_unused lower_bound, upper_bound;
1260         int ret;
1261         u8 lut;
1262
1263         struct iwl_bt_coex_cmd_old *bt_cmd;
1264         struct iwl_host_cmd cmd = {
1265                 .id = BT_CONFIG,
1266                 .len = { sizeof(*bt_cmd), },
1267                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
1268         };
1269
1270         if (!iwl_mvm_bt_is_plcr_supported(mvm))
1271                 return 0;
1272
1273         lockdep_assert_held(&mvm->mutex);
1274
1275         /* Ignore updates if we are in force mode */
1276         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1277                 return 0;
1278
1279         if (ant_isolation ==  mvm->last_ant_isol)
1280                 return 0;
1281
1282         for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++)
1283                 if (ant_isolation < antenna_coupling_ranges[lut + 1].range)
1284                         break;
1285
1286         lower_bound = antenna_coupling_ranges[lut].range;
1287
1288         if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1)
1289                 upper_bound = antenna_coupling_ranges[lut + 1].range;
1290         else
1291                 upper_bound = antenna_coupling_ranges[lut].range;
1292
1293         IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n",
1294                        ant_isolation, lower_bound, upper_bound, lut);
1295
1296         mvm->last_ant_isol = ant_isolation;
1297
1298         if (mvm->last_corun_lut == lut)
1299                 return 0;
1300
1301         mvm->last_corun_lut = lut;
1302
1303         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
1304         if (!bt_cmd)
1305                 return 0;
1306         cmd.data[0] = bt_cmd;
1307
1308         bt_cmd->flags = cpu_to_le32(BT_COEX_NW_OLD);
1309         bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
1310                                              BT_VALID_CORUN_LUT_20 |
1311                                              BT_VALID_CORUN_LUT_40);
1312
1313         /* For the moment, use the same LUT for 20GHz and 40GHz */
1314         memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[lut].lut20,
1315                sizeof(bt_cmd->bt4_corun_lut20));
1316
1317         memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[lut].lut20,
1318                sizeof(bt_cmd->bt4_corun_lut40));
1319
1320         ret = iwl_mvm_send_cmd(mvm, &cmd);
1321
1322         kfree(bt_cmd);
1323         return ret;
1324 }