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

   1 /******************************************************************************
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  54  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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  60  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  61  *
  62  *****************************************************************************/
  63
  64 #include <linux/ieee80211.h>
  65 #include <linux/etherdevice.h>
  66 #include <net/mac80211.h>
  67
  68 #include "fw-api-coex.h"
  69 #include "iwl-modparams.h"
  70 #include "mvm.h"
  71 #include "iwl-debug.h"
  72
  73 #define EVENT_PRIO_ANT(_evt, _prio, _shrd_ant)                  \
  74         [(_evt)] = (((_prio) << BT_COEX_PRIO_TBL_PRIO_POS) |    \
  75                    ((_shrd_ant) << BT_COEX_PRIO_TBL_SHRD_ANT_POS))
  76
  77 static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
  78         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB1,
  79                        BT_COEX_PRIO_TBL_PRIO_BYPASS, 0),
  80         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB2,
  81                        BT_COEX_PRIO_TBL_PRIO_BYPASS, 1),
  82         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW1,
  83                        BT_COEX_PRIO_TBL_PRIO_LOW, 0),
  84         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW2,
  85                        BT_COEX_PRIO_TBL_PRIO_LOW, 1),
  86         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH1,
  87                        BT_COEX_PRIO_TBL_PRIO_HIGH, 0),
  88         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH2,
  89                        BT_COEX_PRIO_TBL_PRIO_HIGH, 1),
  90         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_DTIM,
  91                        BT_COEX_PRIO_TBL_DISABLED, 0),
  92         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN52,
  93                        BT_COEX_PRIO_TBL_PRIO_COEX_OFF, 0),
  94         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN24,
  95                        BT_COEX_PRIO_TBL_PRIO_COEX_ON, 0),
  96         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_IDLE,
  97                        BT_COEX_PRIO_TBL_PRIO_COEX_IDLE, 0),
  98         0, 0, 0, 0, 0, 0,
  99 };
 100
 101 #undef EVENT_PRIO_ANT
 102
 103 #define BT_ENABLE_REDUCED_TXPOWER_THRESHOLD     (-62)
 104 #define BT_DISABLE_REDUCED_TXPOWER_THRESHOLD    (-65)
 105 #define BT_ANTENNA_COUPLING_THRESHOLD           (30)
 106
 107 static int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm)
 108 {
 109         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
 110                 return 0;
 111
 112         return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, 0,
 113                                     sizeof(struct iwl_bt_coex_prio_tbl_cmd),
 114                                     &iwl_bt_prio_tbl);
 115 }
 116
 117 const u32 iwl_bt_ack_kill_msk[BT_KILL_MSK_MAX] = {
 118         [BT_KILL_MSK_DEFAULT] = 0xffff0000,
 119         [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff,
 120         [BT_KILL_MSK_REDUCED_TXPOW] = 0,
 121 };
 122
 123 const u32 iwl_bt_cts_kill_msk[BT_KILL_MSK_MAX] = {
 124         [BT_KILL_MSK_DEFAULT] = 0xffff0000,
 125         [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff,
 126         [BT_KILL_MSK_REDUCED_TXPOW] = 0,
 127 };
 128
 129 static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = {
 130         cpu_to_le32(0xf0f0f0f0), /* 50% */
 131         cpu_to_le32(0xc0c0c0c0), /* 25% */
 132         cpu_to_le32(0xfcfcfcfc), /* 75% */
 133         cpu_to_le32(0xfefefefe), /* 87.5% */
 134 };
 135
 136 static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
 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                 cpu_to_le32(0x40000000),
 167                 cpu_to_le32(0x00000000),
 168                 cpu_to_le32(0x44000000),
 169                 cpu_to_le32(0x00000000),
 170                 cpu_to_le32(0x40000000),
 171                 cpu_to_le32(0x00000000),
 172                 cpu_to_le32(0x44000000),
 173                 cpu_to_le32(0x00000000),
 174                 cpu_to_le32(0xc0004000),
 175                 cpu_to_le32(0xf0005000),
 176                 cpu_to_le32(0xc0004000),
 177                 cpu_to_le32(0xf0005000),
 178         },
 179 };
 180
 181 static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
 182         {
 183                 /* Tight */
 184                 cpu_to_le32(0xaaaaaaaa),
 185                 cpu_to_le32(0xaaaaaaaa),
 186                 cpu_to_le32(0xaeaaaaaa),
 187                 cpu_to_le32(0xaaaaaaaa),
 188                 cpu_to_le32(0xcc00ff28),
 189                 cpu_to_le32(0x0000aaaa),
 190                 cpu_to_le32(0xcc00aaaa),
 191                 cpu_to_le32(0x0000aaaa),
 192                 cpu_to_le32(0xc0004000),
 193                 cpu_to_le32(0x00004000),
 194                 cpu_to_le32(0xf0005000),
 195                 cpu_to_le32(0xf0005000),
 196         },
 197         {
 198                 /* Loose */
 199                 cpu_to_le32(0xaaaaaaaa),
 200                 cpu_to_le32(0xaaaaaaaa),
 201                 cpu_to_le32(0xaaaaaaaa),
 202                 cpu_to_le32(0xaaaaaaaa),
 203                 cpu_to_le32(0xcc00ff28),
 204                 cpu_to_le32(0x0000aaaa),
 205                 cpu_to_le32(0xcc00aaaa),
 206                 cpu_to_le32(0x0000aaaa),
 207                 cpu_to_le32(0x00000000),
 208                 cpu_to_le32(0x00000000),
 209                 cpu_to_le32(0xf0005000),
 210                 cpu_to_le32(0xf0005000),
 211         },
 212         {
 213                 /* Tx Tx disabled */
 214                 cpu_to_le32(0xaaaaaaaa),
 215                 cpu_to_le32(0xaaaaaaaa),
 216                 cpu_to_le32(0xeeaaaaaa),
 217                 cpu_to_le32(0xaaaaaaaa),
 218                 cpu_to_le32(0xcc00ff28),
 219                 cpu_to_le32(0x0000aaaa),
 220                 cpu_to_le32(0xcc00aaaa),
 221                 cpu_to_le32(0x0000aaaa),
 222                 cpu_to_le32(0xc0004000),
 223                 cpu_to_le32(0xc0004000),
 224                 cpu_to_le32(0xf0005000),
 225                 cpu_to_le32(0xf0005000),
 226         },
 227 };
 228
 229 /* 20MHz / 40MHz below / 40Mhz above*/
 230 static const __le64 iwl_ci_mask[][3] = {
 231         /* dummy entry for channel 0 */
 232         {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
 233         {
 234                 cpu_to_le64(0x0000001FFFULL),
 235                 cpu_to_le64(0x0ULL),
 236                 cpu_to_le64(0x00007FFFFFULL),
 237         },
 238         {
 239                 cpu_to_le64(0x000000FFFFULL),
 240                 cpu_to_le64(0x0ULL),
 241                 cpu_to_le64(0x0003FFFFFFULL),
 242         },
 243         {
 244                 cpu_to_le64(0x000003FFFCULL),
 245                 cpu_to_le64(0x0ULL),
 246                 cpu_to_le64(0x000FFFFFFCULL),
 247         },
 248         {
 249                 cpu_to_le64(0x00001FFFE0ULL),
 250                 cpu_to_le64(0x0ULL),
 251                 cpu_to_le64(0x007FFFFFE0ULL),
 252         },
 253         {
 254                 cpu_to_le64(0x00007FFF80ULL),
 255                 cpu_to_le64(0x00007FFFFFULL),
 256                 cpu_to_le64(0x01FFFFFF80ULL),
 257         },
 258         {
 259                 cpu_to_le64(0x0003FFFC00ULL),
 260                 cpu_to_le64(0x0003FFFFFFULL),
 261                 cpu_to_le64(0x0FFFFFFC00ULL),
 262         },
 263         {
 264                 cpu_to_le64(0x000FFFF000ULL),
 265                 cpu_to_le64(0x000FFFFFFCULL),
 266                 cpu_to_le64(0x3FFFFFF000ULL),
 267         },
 268         {
 269                 cpu_to_le64(0x007FFF8000ULL),
 270                 cpu_to_le64(0x007FFFFFE0ULL),
 271                 cpu_to_le64(0xFFFFFF8000ULL),
 272         },
 273         {
 274                 cpu_to_le64(0x01FFFE0000ULL),
 275                 cpu_to_le64(0x01FFFFFF80ULL),
 276                 cpu_to_le64(0xFFFFFE0000ULL),
 277         },
 278         {
 279                 cpu_to_le64(0x0FFFF00000ULL),
 280                 cpu_to_le64(0x0FFFFFFC00ULL),
 281                 cpu_to_le64(0x0ULL),
 282         },
 283         {
 284                 cpu_to_le64(0x3FFFC00000ULL),
 285                 cpu_to_le64(0x3FFFFFF000ULL),
 286                 cpu_to_le64(0x0)
 287         },
 288         {
 289                 cpu_to_le64(0xFFFE000000ULL),
 290                 cpu_to_le64(0xFFFFFF8000ULL),
 291                 cpu_to_le64(0x0)
 292         },
 293         {
 294                 cpu_to_le64(0xFFF8000000ULL),
 295                 cpu_to_le64(0xFFFFFE0000ULL),
 296                 cpu_to_le64(0x0)
 297         },
 298         {
 299                 cpu_to_le64(0xFFC0000000ULL),
 300                 cpu_to_le64(0x0ULL),
 301                 cpu_to_le64(0x0ULL)
 302         },
 303 };
 304
 305 static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = {
 306         cpu_to_le32(0x28412201),
 307         cpu_to_le32(0x11118451),
 308 };
 309
 310 struct corunning_block_luts {
 311         u8 range;
 312         __le32 lut20[BT_COEX_CORUN_LUT_SIZE];
 313 };
 314
 315 /*
 316  * Ranges for the antenna coupling calibration / co-running block LUT:
 317  *              LUT0: [ 0, 12[
 318  *              LUT1: [12, 20[
 319  *              LUT2: [20, 21[
 320  *              LUT3: [21, 23[
 321  *              LUT4: [23, 27[
 322  *              LUT5: [27, 30[
 323  *              LUT6: [30, 32[
 324  *              LUT7: [32, 33[
 325  *              LUT8: [33, - [
 326  */
 327 static const struct corunning_block_luts antenna_coupling_ranges[] = {
 328         {
 329                 .range = 0,
 330                 .lut20 = {
 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                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 346                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 347                 },
 348         },
 349         {
 350                 .range = 12,
 351                 .lut20 = {
 352                         cpu_to_le32(0x00000001),  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                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 367                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 368                 },
 369         },
 370         {
 371                 .range = 20,
 372                 .lut20 = {
 373                         cpu_to_le32(0x00000002),  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                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 388                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 389                 },
 390         },
 391         {
 392                 .range = 21,
 393                 .lut20 = {
 394                         cpu_to_le32(0x00000003),  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                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 409                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 410                 },
 411         },
 412         {
 413                 .range = 23,
 414                 .lut20 = {
 415                         cpu_to_le32(0x00000004),  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                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 430                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 431                 },
 432         },
 433         {
 434                 .range = 27,
 435                 .lut20 = {
 436                         cpu_to_le32(0x00000005),  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                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 451                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 452                 },
 453         },
 454         {
 455                 .range = 30,
 456                 .lut20 = {
 457                         cpu_to_le32(0x00000006),  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                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 472                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 473                 },
 474         },
 475         {
 476                 .range = 32,
 477                 .lut20 = {
 478                         cpu_to_le32(0x00000007),  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                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 493                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 494                 },
 495         },
 496         {
 497                 .range = 33,
 498                 .lut20 = {
 499                         cpu_to_le32(0x00000008),  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                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 514                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 515                 },
 516         },
 517 };
 518
 519 static enum iwl_bt_coex_lut_type
 520 iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
 521 {
 522         struct ieee80211_chanctx_conf *chanctx_conf;
 523         enum iwl_bt_coex_lut_type ret;
 524         u16 phy_ctx_id;
 525
 526         /*
 527          * Checking that we hold mvm->mutex is a good idea, but the rate
 528          * control can't acquire the mutex since it runs in Tx path.
 529          * So this is racy in that case, but in the worst case, the AMPDU
 530          * size limit will be wrong for a short time which is not a big
 531          * issue.
 532          */
 533
 534         rcu_read_lock();
 535
 536         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 537
 538         if (!chanctx_conf ||
 539              chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
 540                 rcu_read_unlock();
 541                 return BT_COEX_LOOSE_LUT;
 542         }
 543
 544         ret = BT_COEX_TX_DIS_LUT;
 545
 546         if (mvm->cfg->bt_shared_single_ant) {
 547                 rcu_read_unlock();
 548                 return ret;
 549         }
 550
 551         phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
 552
 553         if (mvm->last_bt_ci_cmd.primary_ch_phy_id == phy_ctx_id)
 554                 ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut);
 555         else if (mvm->last_bt_ci_cmd.secondary_ch_phy_id == phy_ctx_id)
 556                 ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut);
 557         /* else - default = TX TX disallowed */
 558
 559         rcu_read_unlock();
 560
 561         return ret;
 562 }
 563
 564 int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
 565 {
 566         struct iwl_bt_coex_cmd *bt_cmd;
 567         struct iwl_host_cmd cmd = {
 568                 .id = BT_CONFIG,
 569                 .len = { sizeof(*bt_cmd), },
 570                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 571         };
 572         int ret;
 573         u32 flags;
 574
 575         ret = iwl_send_bt_prio_tbl(mvm);
 576         if (ret)
 577                 return ret;
 578
 579         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
 580         if (!bt_cmd)
 581                 return -ENOMEM;
 582         cmd.data[0] = bt_cmd;
 583
 584         lockdep_assert_held(&mvm->mutex);
 585
 586         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) {
 587                 switch (mvm->bt_force_ant_mode) {
 588                 case BT_FORCE_ANT_AUTO:
 589                         flags = BT_COEX_AUTO;
 590                         break;
 591                 case BT_FORCE_ANT_BT:
 592                         flags = BT_COEX_BT;
 593                         break;
 594                 case BT_FORCE_ANT_WIFI:
 595                         flags = BT_COEX_WIFI;
 596                         break;
 597                 default:
 598                         WARN_ON(1);
 599                         flags = 0;
 600                 }
 601
 602                 bt_cmd->flags = cpu_to_le32(flags);
 603                 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE);
 604                 goto send_cmd;
 605         }
 606
 607         bt_cmd->max_kill = 5;
 608         bt_cmd->bt4_antenna_isolation_thr = BT_ANTENNA_COUPLING_THRESHOLD;
 609         bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling;
 610         bt_cmd->bt4_tx_tx_delta_freq_thr = 15;
 611         bt_cmd->bt4_tx_rx_max_freq0 = 15;
 612         bt_cmd->override_primary_lut = BT_COEX_INVALID_LUT;
 613         bt_cmd->override_secondary_lut = BT_COEX_INVALID_LUT;
 614
 615         flags = iwlwifi_mod_params.bt_coex_active ?
 616                         BT_COEX_NW : BT_COEX_DISABLE;
 617         bt_cmd->flags = cpu_to_le32(flags);
 618
 619         bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE |
 620                                             BT_VALID_BT_PRIO_BOOST |
 621                                             BT_VALID_MAX_KILL |
 622                                             BT_VALID_3W_TMRS |
 623                                             BT_VALID_KILL_ACK |
 624                                             BT_VALID_KILL_CTS |
 625                                             BT_VALID_REDUCED_TX_POWER |
 626                                             BT_VALID_LUT |
 627                                             BT_VALID_WIFI_RX_SW_PRIO_BOOST |
 628                                             BT_VALID_WIFI_TX_SW_PRIO_BOOST |
 629                                             BT_VALID_ANT_ISOLATION |
 630                                             BT_VALID_ANT_ISOLATION_THRS |
 631                                             BT_VALID_TXTX_DELTA_FREQ_THRS |
 632                                             BT_VALID_TXRX_MAX_FREQ_0 |
 633                                             BT_VALID_SYNC_TO_SCO);
 634
 635         if (IWL_MVM_BT_COEX_SYNC2SCO)
 636                 bt_cmd->flags |= cpu_to_le32(BT_COEX_SYNC2SCO);
 637
 638         if (IWL_MVM_BT_COEX_CORUNNING) {
 639                 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_CORUN_LUT_20 |
 640                                                      BT_VALID_CORUN_LUT_40);
 641                 bt_cmd->flags |= cpu_to_le32(BT_COEX_CORUNNING);
 642         }
 643
 644         if (IWL_MVM_BT_COEX_MPLUT) {
 645                 bt_cmd->flags |= cpu_to_le32(BT_COEX_MPLUT);
 646                 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_MULTI_PRIO_LUT);
 647         }
 648
 649         if (mvm->cfg->bt_shared_single_ant)
 650                 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant,
 651                        sizeof(iwl_single_shared_ant));
 652         else
 653                 memcpy(&bt_cmd->decision_lut, iwl_combined_lookup,
 654                        sizeof(iwl_combined_lookup));
 655
 656         /* Take first Co-running block LUT to get started */
 657         memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[0].lut20,
 658                sizeof(bt_cmd->bt4_corun_lut20));
 659         memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[0].lut20,
 660                sizeof(bt_cmd->bt4_corun_lut40));
 661
 662         memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost,
 663                sizeof(iwl_bt_prio_boost));
 664         memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut,
 665                sizeof(iwl_bt_mprio_lut));
 666         bt_cmd->kill_ack_msk =
 667                 cpu_to_le32(iwl_bt_ack_kill_msk[BT_KILL_MSK_DEFAULT]);
 668         bt_cmd->kill_cts_msk =
 669                 cpu_to_le32(iwl_bt_cts_kill_msk[BT_KILL_MSK_DEFAULT]);
 670
 671 send_cmd:
 672         memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
 673         memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
 674
 675         ret = iwl_mvm_send_cmd(mvm, &cmd);
 676
 677         kfree(bt_cmd);
 678         return ret;
 679 }
 680
 681 static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm,
 682                                            bool reduced_tx_power)
 683 {
 684         enum iwl_bt_kill_msk bt_kill_msk;
 685         struct iwl_bt_coex_cmd *bt_cmd;
 686         struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
 687         struct iwl_host_cmd cmd = {
 688                 .id = BT_CONFIG,
 689                 .data[0] = &bt_cmd,
 690                 .len = { sizeof(*bt_cmd), },
 691                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 692         };
 693         int ret = 0;
 694
 695         lockdep_assert_held(&mvm->mutex);
 696
 697         if (reduced_tx_power) {
 698                 /* Reduced Tx power has precedence on the type of the profile */
 699                 bt_kill_msk = BT_KILL_MSK_REDUCED_TXPOW;
 700         } else {
 701                 /* Low latency BT profile is active: give higher prio to BT */
 702                 if (BT_MBOX_MSG(notif, 3, SCO_STATE)  ||
 703                     BT_MBOX_MSG(notif, 3, A2DP_STATE) ||
 704                     BT_MBOX_MSG(notif, 3, SNIFF_STATE))
 705                         bt_kill_msk = BT_KILL_MSK_SCO_HID_A2DP;
 706                 else
 707                         bt_kill_msk = BT_KILL_MSK_DEFAULT;
 708         }
 709
 710         IWL_DEBUG_COEX(mvm,
 711                        "Update kill_msk: %d - SCO %sactive A2DP %sactive SNIFF %sactive\n",
 712                        bt_kill_msk,
 713                        BT_MBOX_MSG(notif, 3, SCO_STATE) ? "" : "in",
 714                        BT_MBOX_MSG(notif, 3, A2DP_STATE) ? "" : "in",
 715                        BT_MBOX_MSG(notif, 3, SNIFF_STATE) ? "" : "in");
 716
 717         /* Don't send HCMD if there is no update */
 718         if (bt_kill_msk == mvm->bt_kill_msk)
 719                 return 0;
 720
 721         mvm->bt_kill_msk = bt_kill_msk;
 722
 723         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
 724         if (!bt_cmd)
 725                 return -ENOMEM;
 726         cmd.data[0] = bt_cmd;
 727         bt_cmd->flags = cpu_to_le32(BT_COEX_NW);
 728
 729         bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ack_kill_msk[bt_kill_msk]);
 730         bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_cts_kill_msk[bt_kill_msk]);
 731         bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
 732                                              BT_VALID_KILL_ACK |
 733                                              BT_VALID_KILL_CTS);
 734
 735         IWL_DEBUG_COEX(mvm, "ACK Kill msk = 0x%08x, CTS Kill msk = 0x%08x\n",
 736                        iwl_bt_ack_kill_msk[bt_kill_msk],
 737                        iwl_bt_cts_kill_msk[bt_kill_msk]);
 738
 739         ret = iwl_mvm_send_cmd(mvm, &cmd);
 740
 741         kfree(bt_cmd);
 742         return ret;
 743 }
 744
 745 static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
 746                                        bool enable)
 747 {
 748         struct iwl_bt_coex_cmd *bt_cmd;
 749         /* Send ASYNC since this can be sent from an atomic context */
 750         struct iwl_host_cmd cmd = {
 751                 .id = BT_CONFIG,
 752                 .len = { sizeof(*bt_cmd), },
 753                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 754                 .flags = CMD_ASYNC,
 755         };
 756         struct iwl_mvm_sta *mvmsta;
 757         int ret;
 758
 759         mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
 760         if (!mvmsta)
 761                 return 0;
 762
 763         /* nothing to do */
 764         if (mvmsta->bt_reduced_txpower == enable)
 765                 return 0;
 766
 767         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC);
 768         if (!bt_cmd)
 769                 return -ENOMEM;
 770         cmd.data[0] = bt_cmd;
 771         bt_cmd->flags = cpu_to_le32(BT_COEX_NW);
 772
 773         bt_cmd->valid_bit_msk =
 774                 cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER);
 775         bt_cmd->bt_reduced_tx_power = sta_id;
 776
 777         if (enable)
 778                 bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT;
 779
 780         IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
 781                        enable ? "en" : "dis", sta_id);
 782
 783         mvmsta->bt_reduced_txpower = enable;
 784
 785         ret = iwl_mvm_send_cmd(mvm, &cmd);
 786
 787         kfree(bt_cmd);
 788         return ret;
 789 }
 790
 791 struct iwl_bt_iterator_data {
 792         struct iwl_bt_coex_profile_notif *notif;
 793         struct iwl_mvm *mvm;
 794         u32 num_bss_ifaces;
 795         bool reduced_tx_power;
 796         struct ieee80211_chanctx_conf *primary;
 797         struct ieee80211_chanctx_conf *secondary;
 798         bool primary_ll;
 799 };
 800
 801 static inline
 802 void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
 803                                        struct ieee80211_vif *vif,
 804                                        bool enable, int rssi)
 805 {
 806         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 807
 808         mvmvif->bf_data.last_bt_coex_event = rssi;
 809         mvmvif->bf_data.bt_coex_max_thold =
 810                 enable ? BT_ENABLE_REDUCED_TXPOWER_THRESHOLD : 0;
 811         mvmvif->bf_data.bt_coex_min_thold =
 812                 enable ? BT_DISABLE_REDUCED_TXPOWER_THRESHOLD : 0;
 813 }
 814
 815 /* must be called under rcu_read_lock */
 816 static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 817                                       struct ieee80211_vif *vif)
 818 {
 819         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 820         struct iwl_bt_iterator_data *data = _data;
 821         struct iwl_mvm *mvm = data->mvm;
 822         struct ieee80211_chanctx_conf *chanctx_conf;
 823         enum ieee80211_smps_mode smps_mode;
 824         u32 bt_activity_grading;
 825         int ave_rssi;
 826
 827         lockdep_assert_held(&mvm->mutex);
 828
 829         switch (vif->type) {
 830         case NL80211_IFTYPE_STATION:
 831                 /* Count BSSes vifs */
 832                 data->num_bss_ifaces++;
 833                 /* default smps_mode for BSS / P2P client is AUTOMATIC */
 834                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 835                 break;
 836         case NL80211_IFTYPE_AP:
 837                 /* default smps_mode for AP / GO is OFF */
 838                 smps_mode = IEEE80211_SMPS_OFF;
 839                 if (!mvmvif->ap_ibss_active) {
 840                         iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 841                                             smps_mode);
 842                         return;
 843                 }
 844
 845                 /* the Ack / Cts kill mask must be default if AP / GO */
 846                 data->reduced_tx_power = false;
 847                 break;
 848         default:
 849                 return;
 850         }
 851
 852         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 853
 854         /* If channel context is invalid or not on 2.4GHz .. */
 855         if ((!chanctx_conf ||
 856              chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) {
 857                 /* ... relax constraints and disable rssi events */
 858                 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 859                                     smps_mode);
 860                 data->reduced_tx_power = false;
 861                 if (vif->type == NL80211_IFTYPE_STATION) {
 862                         iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
 863                                                     false);
 864                         iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 865                 }
 866                 return;
 867         }
 868
 869         bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
 870         if (bt_activity_grading >= BT_HIGH_TRAFFIC)
 871                 smps_mode = IEEE80211_SMPS_STATIC;
 872         else if (bt_activity_grading >= BT_LOW_TRAFFIC)
 873                 smps_mode = vif->type == NL80211_IFTYPE_AP ?
 874                                 IEEE80211_SMPS_OFF :
 875                                 IEEE80211_SMPS_DYNAMIC;
 876
 877         /* relax SMPS contraints for next association */
 878         if (!vif->bss_conf.assoc)
 879                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 880
 881         IWL_DEBUG_COEX(data->mvm,
 882                        "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n",
 883                        mvmvif->id, data->notif->bt_status, bt_activity_grading,
 884                        smps_mode);
 885
 886         iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, smps_mode);
 887
 888         /* low latency is always primary */
 889         if (iwl_mvm_vif_low_latency(mvmvif)) {
 890                 data->primary_ll = true;
 891
 892                 data->secondary = data->primary;
 893                 data->primary = chanctx_conf;
 894         }
 895
 896         if (vif->type == NL80211_IFTYPE_AP) {
 897                 if (!mvmvif->ap_ibss_active)
 898                         return;
 899
 900                 if (chanctx_conf == data->primary)
 901                         return;
 902
 903                 if (!data->primary_ll) {
 904                         /*
 905                          * downgrade the current primary no matter what its
 906                          * type is.
 907                          */
 908                         data->secondary = data->primary;
 909                         data->primary = chanctx_conf;
 910                 } else {
 911                         /* there is low latency vif - we will be secondary */
 912                         data->secondary = chanctx_conf;
 913                 }
 914                 return;
 915         }
 916
 917         /*
 918          * STA / P2P Client, try to be primary if first vif. If we are in low
 919          * latency mode, we are already in primary and just don't do much
 920          */
 921         if (!data->primary || data->primary == chanctx_conf)
 922                 data->primary = chanctx_conf;
 923         else if (!data->secondary)
 924                 /* if secondary is not NULL, it might be a GO */
 925                 data->secondary = chanctx_conf;
 926
 927         /*
 928          * don't reduce the Tx power if one of these is true:
 929          *  we are in LOOSE
 930          *  single share antenna product
 931          *  BT is active
 932          *  we are associated
 933          */
 934         if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
 935             mvm->cfg->bt_shared_single_ant || !vif->bss_conf.assoc ||
 936             !data->notif->bt_status) {
 937                 data->reduced_tx_power = false;
 938                 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false);
 939                 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 940                 return;
 941         }
 942
 943         /* try to get the avg rssi from fw */
 944         ave_rssi = mvmvif->bf_data.ave_beacon_signal;
 945
 946         /* if the RSSI isn't valid, fake it is very low */
 947         if (!ave_rssi)
 948                 ave_rssi = -100;
 949         if (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) {
 950                 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true))
 951                         IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 952
 953                 /*
 954                  * bt_kill_msk can be BT_KILL_MSK_REDUCED_TXPOW only if all the
 955                  * BSS / P2P clients have rssi above threshold.
 956                  * We set the bt_kill_msk to BT_KILL_MSK_REDUCED_TXPOW before
 957                  * the iteration, if one interface's rssi isn't good enough,
 958                  * bt_kill_msk will be set to default values.
 959                  */
 960         } else if (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) {
 961                 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
 962                         IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 963
 964                 /*
 965                  * One interface hasn't rssi above threshold, bt_kill_msk must
 966                  * be set to default values.
 967                  */
 968                 data->reduced_tx_power = false;
 969         }
 970
 971         /* Begin to monitor the RSSI: it may influence the reduced Tx power */
 972         iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
 973 }
 974
 975 static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
 976 {
 977         struct iwl_bt_iterator_data data = {
 978                 .mvm = mvm,
 979                 .notif = &mvm->last_bt_notif,
 980                 .reduced_tx_power = true,
 981         };
 982         struct iwl_bt_coex_ci_cmd cmd = {};
 983         u8 ci_bw_idx;
 984
 985         /* Ignore updates if we are in force mode */
 986         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
 987                 return;
 988
 989         rcu_read_lock();
 990         ieee80211_iterate_active_interfaces_atomic(
 991                                         mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 992                                         iwl_mvm_bt_notif_iterator, &data);
 993
 994         if (data.primary) {
 995                 struct ieee80211_chanctx_conf *chan = data.primary;
 996                 if (WARN_ON(!chan->def.chan)) {
 997                         rcu_read_unlock();
 998                         return;
 999                 }
1000
1001                 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
1002                         ci_bw_idx = 0;
1003                         cmd.co_run_bw_primary = 0;
1004                 } else {
1005                         cmd.co_run_bw_primary = 1;
1006                         if (chan->def.center_freq1 >
1007                             chan->def.chan->center_freq)
1008                                 ci_bw_idx = 2;
1009                         else
1010                                 ci_bw_idx = 1;
1011                 }
1012
1013                 cmd.bt_primary_ci =
1014                         iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
1015                 cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv);
1016         }
1017
1018         if (data.secondary) {
1019                 struct ieee80211_chanctx_conf *chan = data.secondary;
1020                 if (WARN_ON(!data.secondary->def.chan)) {
1021                         rcu_read_unlock();
1022                         return;
1023                 }
1024
1025                 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
1026                         ci_bw_idx = 0;
1027                         cmd.co_run_bw_secondary = 0;
1028                 } else {
1029                         cmd.co_run_bw_secondary = 1;
1030                         if (chan->def.center_freq1 >
1031                             chan->def.chan->center_freq)
1032                                 ci_bw_idx = 2;
1033                         else
1034                                 ci_bw_idx = 1;
1035                 }
1036
1037                 cmd.bt_secondary_ci =
1038                         iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
1039                 cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv);
1040         }
1041
1042         rcu_read_unlock();
1043
1044         /* Don't spam the fw with the same command over and over */
1045         if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) {
1046                 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0,
1047                                          sizeof(cmd), &cmd))
1048                         IWL_ERR(mvm, "Failed to send BT_CI cmd\n");
1049                 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd));
1050         }
1051
1052         /*
1053          * If there are no BSS / P2P client interfaces, reduced Tx Power is
1054          * irrelevant since it is based on the RSSI coming from the beacon.
1055          * Use BT_KILL_MSK_DEFAULT in that case.
1056          */
1057         data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces;
1058
1059         if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power))
1060                 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
1061 }
1062
1063 int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
1064                              struct iwl_rx_cmd_buffer *rxb,
1065                              struct iwl_device_cmd *dev_cmd)
1066 {
1067         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1068         struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data;
1069
1070
1071         IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
1072         IWL_DEBUG_COEX(mvm, "\tBT status: %s\n",
1073                        notif->bt_status ? "ON" : "OFF");
1074         IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn);
1075         IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
1076         IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
1077                        le32_to_cpu(notif->primary_ch_lut));
1078         IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
1079                        le32_to_cpu(notif->secondary_ch_lut));
1080         IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
1081                        le32_to_cpu(notif->bt_activity_grading));
1082         IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n",
1083                        notif->bt_agg_traffic_load);
1084
1085         /* remember this notification for future use: rssi fluctuations */
1086         memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif));
1087
1088         iwl_mvm_bt_coex_notif_handle(mvm);
1089
1090         /*
1091          * This is an async handler for a notification, returning anything other
1092          * than 0 doesn't make sense even if HCMD failed.
1093          */
1094         return 0;
1095 }
1096
1097 static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
1098                                    struct ieee80211_vif *vif)
1099 {
1100         struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1101         struct iwl_bt_iterator_data *data = _data;
1102         struct iwl_mvm *mvm = data->mvm;
1103
1104         struct ieee80211_sta *sta;
1105         struct iwl_mvm_sta *mvmsta;
1106
1107         struct ieee80211_chanctx_conf *chanctx_conf;
1108
1109         rcu_read_lock();
1110         chanctx_conf = rcu_dereference(vif->chanctx_conf);
1111         /* If channel context is invalid or not on 2.4GHz - don't count it */
1112         if (!chanctx_conf ||
1113             chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
1114                 rcu_read_unlock();
1115                 return;
1116         }
1117         rcu_read_unlock();
1118
1119         if (vif->type != NL80211_IFTYPE_STATION ||
1120             mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1121                 return;
1122
1123         sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1124                                         lockdep_is_held(&mvm->mutex));
1125
1126         /* This can happen if the station has been removed right now */
1127         if (IS_ERR_OR_NULL(sta))
1128                 return;
1129
1130         mvmsta = iwl_mvm_sta_from_mac80211(sta);
1131
1132         data->num_bss_ifaces++;
1133
1134         /*
1135          * This interface doesn't support reduced Tx power (because of low
1136          * RSSI probably), then set bt_kill_msk to default values.
1137          */
1138         if (!mvmsta->bt_reduced_txpower)
1139                 data->reduced_tx_power = false;
1140         /* else - possibly leave it to BT_KILL_MSK_REDUCED_TXPOW */
1141 }
1142
1143 void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1144                            enum ieee80211_rssi_event rssi_event)
1145 {
1146         struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1147         struct iwl_bt_iterator_data data = {
1148                 .mvm = mvm,
1149                 .reduced_tx_power = true,
1150         };
1151         int ret;
1152
1153         lockdep_assert_held(&mvm->mutex);
1154
1155         /* Ignore updates if we are in force mode */
1156         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1157                 return;
1158
1159         /*
1160          * Rssi update while not associated - can happen since the statistics
1161          * are handled asynchronously
1162          */
1163         if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1164                 return;
1165
1166         /* No BT - reports should be disabled */
1167         if (!mvm->last_bt_notif.bt_status)
1168                 return;
1169
1170         IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
1171                        rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
1172
1173         /*
1174          * Check if rssi is good enough for reduced Tx power, but not in loose
1175          * scheme.
1176          */
1177         if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
1178             iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
1179                 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
1180                                                   false);
1181         else
1182                 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true);
1183
1184         if (ret)
1185                 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
1186
1187         ieee80211_iterate_active_interfaces_atomic(
1188                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1189                 iwl_mvm_bt_rssi_iterator, &data);
1190
1191         /*
1192          * If there are no BSS / P2P client interfaces, reduced Tx Power is
1193          * irrelevant since it is based on the RSSI coming from the beacon.
1194          * Use BT_KILL_MSK_DEFAULT in that case.
1195          */
1196         data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces;
1197
1198         if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power))
1199                 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
1200 }
1201
1202 #define LINK_QUAL_AGG_TIME_LIMIT_DEF    (4000)
1203 #define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
1204
1205 u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm,
1206                                 struct ieee80211_sta *sta)
1207 {
1208         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1209         enum iwl_bt_coex_lut_type lut_type;
1210
1211         if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
1212             BT_HIGH_TRAFFIC)
1213                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1214
1215         lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1216
1217         if (lut_type == BT_COEX_LOOSE_LUT)
1218                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1219
1220         /* tight coex, high bt traffic, reduce AGG time limit */
1221         return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
1222 }
1223
1224 bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
1225                                      struct ieee80211_sta *sta)
1226 {
1227         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1228
1229         if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
1230             BT_HIGH_TRAFFIC)
1231                 return true;
1232
1233         /*
1234          * In Tight, BT can't Rx while we Tx, so use both antennas since BT is
1235          * already killed.
1236          * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while we
1237          * Tx.
1238          */
1239         return iwl_get_coex_type(mvm, mvmsta->vif) == BT_COEX_TIGHT_LUT;
1240 }
1241
1242 bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm,
1243                                     enum ieee80211_band band)
1244 {
1245         u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading);
1246
1247         if (band != IEEE80211_BAND_2GHZ)
1248                 return false;
1249
1250         return bt_activity >= BT_LOW_TRAFFIC;
1251 }
1252
1253 u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
1254                            struct ieee80211_tx_info *info, u8 ac)
1255 {
1256         __le16 fc = hdr->frame_control;
1257
1258         if (info->band != IEEE80211_BAND_2GHZ)
1259                 return 0;
1260
1261         if (unlikely(mvm->bt_tx_prio))
1262                 return mvm->bt_tx_prio - 1;
1263
1264         /* High prio packet (wrt. BT coex) if it is EAPOL, MCAST or MGMT */
1265         if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO ||
1266              is_multicast_ether_addr(hdr->addr1) ||
1267              ieee80211_is_ctl(fc) || ieee80211_is_mgmt(fc) ||
1268              ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc))
1269                 return 3;
1270
1271         switch (ac) {
1272         case IEEE80211_AC_BE:
1273                 return 1;
1274         case IEEE80211_AC_VO:
1275                 return 3;
1276         case IEEE80211_AC_VI:
1277                 return 2;
1278         default:
1279                 break;
1280         }
1281
1282         return 0;
1283 }
1284
1285 void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm)
1286 {
1287         iwl_mvm_bt_coex_notif_handle(mvm);
1288 }
1289
1290 int iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm,
1291                                   struct iwl_rx_cmd_buffer *rxb,
1292                                   struct iwl_device_cmd *dev_cmd)
1293 {
1294         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1295         u32 ant_isolation = le32_to_cpup((void *)pkt->data);
1296         u8 __maybe_unused lower_bound, upper_bound;
1297         int ret;
1298         u8 lut;
1299
1300         struct iwl_bt_coex_cmd *bt_cmd;
1301         struct iwl_host_cmd cmd = {
1302                 .id = BT_CONFIG,
1303                 .len = { sizeof(*bt_cmd), },
1304                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
1305         };
1306
1307         if (!IWL_MVM_BT_COEX_CORUNNING)
1308                 return 0;
1309
1310         lockdep_assert_held(&mvm->mutex);
1311
1312         /* Ignore updates if we are in force mode */
1313         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1314                 return 0;
1315
1316         if (ant_isolation ==  mvm->last_ant_isol)
1317                 return 0;
1318
1319         for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++)
1320                 if (ant_isolation < antenna_coupling_ranges[lut + 1].range)
1321                         break;
1322
1323         lower_bound = antenna_coupling_ranges[lut].range;
1324
1325         if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1)
1326                 upper_bound = antenna_coupling_ranges[lut + 1].range;
1327         else
1328                 upper_bound = antenna_coupling_ranges[lut].range;
1329
1330         IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n",
1331                        ant_isolation, lower_bound, upper_bound, lut);
1332
1333         mvm->last_ant_isol = ant_isolation;
1334
1335         if (mvm->last_corun_lut == lut)
1336                 return 0;
1337
1338         mvm->last_corun_lut = lut;
1339
1340         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
1341         if (!bt_cmd)
1342                 return 0;
1343         cmd.data[0] = bt_cmd;
1344
1345         bt_cmd->flags = cpu_to_le32(BT_COEX_NW);
1346         bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
1347                                              BT_VALID_CORUN_LUT_20 |
1348                                              BT_VALID_CORUN_LUT_40);
1349
1350         /* For the moment, use the same LUT for 20GHz and 40GHz */
1351         memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[lut].lut20,
1352                sizeof(bt_cmd->bt4_corun_lut20));
1353
1354         memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[lut].lut20,
1355                sizeof(bt_cmd->bt4_corun_lut40));
1356
1357         ret = iwl_mvm_send_cmd(mvm, &cmd);
1358
1359         kfree(bt_cmd);
1360         return ret;
1361 }