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         return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, CMD_SYNC,
 110                                     sizeof(struct iwl_bt_coex_prio_tbl_cmd),
 111                                     &iwl_bt_prio_tbl);
 112 }
 113
 114 const u32 iwl_bt_ack_kill_msk[BT_KILL_MSK_MAX] = {
 115         [BT_KILL_MSK_DEFAULT] = 0xffff0000,
 116         [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff,
 117         [BT_KILL_MSK_REDUCED_TXPOW] = 0,
 118 };
 119
 120 const u32 iwl_bt_cts_kill_msk[BT_KILL_MSK_MAX] = {
 121         [BT_KILL_MSK_DEFAULT] = 0xffff0000,
 122         [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff,
 123         [BT_KILL_MSK_REDUCED_TXPOW] = 0,
 124 };
 125
 126 static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = {
 127         cpu_to_le32(0xf0f0f0f0),
 128         cpu_to_le32(0xc0c0c0c0),
 129         cpu_to_le32(0xfcfcfcfc),
 130         cpu_to_le32(0xff00ff00),
 131 };
 132
 133 static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
 134         {
 135                 cpu_to_le32(0x40000000),
 136                 cpu_to_le32(0x00000000),
 137                 cpu_to_le32(0x44000000),
 138                 cpu_to_le32(0x00000000),
 139                 cpu_to_le32(0x40000000),
 140                 cpu_to_le32(0x00000000),
 141                 cpu_to_le32(0x44000000),
 142                 cpu_to_le32(0x00000000),
 143                 cpu_to_le32(0xc0004000),
 144                 cpu_to_le32(0xf0005000),
 145                 cpu_to_le32(0xc0004000),
 146                 cpu_to_le32(0xf0005000),
 147         },
 148         {
 149                 cpu_to_le32(0x40000000),
 150                 cpu_to_le32(0x00000000),
 151                 cpu_to_le32(0x44000000),
 152                 cpu_to_le32(0x00000000),
 153                 cpu_to_le32(0x40000000),
 154                 cpu_to_le32(0x00000000),
 155                 cpu_to_le32(0x44000000),
 156                 cpu_to_le32(0x00000000),
 157                 cpu_to_le32(0xc0004000),
 158                 cpu_to_le32(0xf0005000),
 159                 cpu_to_le32(0xc0004000),
 160                 cpu_to_le32(0xf0005000),
 161         },
 162         {
 163                 cpu_to_le32(0x40000000),
 164                 cpu_to_le32(0x00000000),
 165                 cpu_to_le32(0x44000000),
 166                 cpu_to_le32(0x00000000),
 167                 cpu_to_le32(0x40000000),
 168                 cpu_to_le32(0x00000000),
 169                 cpu_to_le32(0x44000000),
 170                 cpu_to_le32(0x00000000),
 171                 cpu_to_le32(0xc0004000),
 172                 cpu_to_le32(0xf0005000),
 173                 cpu_to_le32(0xc0004000),
 174                 cpu_to_le32(0xf0005000),
 175         },
 176 };
 177
 178 static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
 179         {
 180                 /* Tight */
 181                 cpu_to_le32(0xaaaaaaaa),
 182                 cpu_to_le32(0xaaaaaaaa),
 183                 cpu_to_le32(0xaeaaaaaa),
 184                 cpu_to_le32(0xaaaaaaaa),
 185                 cpu_to_le32(0xcc00ff28),
 186                 cpu_to_le32(0x0000aaaa),
 187                 cpu_to_le32(0xcc00aaaa),
 188                 cpu_to_le32(0x0000aaaa),
 189                 cpu_to_le32(0xc0004000),
 190                 cpu_to_le32(0x00004000),
 191                 cpu_to_le32(0xf0005000),
 192                 cpu_to_le32(0xf0005000),
 193         },
 194         {
 195                 /* Loose */
 196                 cpu_to_le32(0xaaaaaaaa),
 197                 cpu_to_le32(0xaaaaaaaa),
 198                 cpu_to_le32(0xaaaaaaaa),
 199                 cpu_to_le32(0xaaaaaaaa),
 200                 cpu_to_le32(0xcc00ff28),
 201                 cpu_to_le32(0x0000aaaa),
 202                 cpu_to_le32(0xcc00aaaa),
 203                 cpu_to_le32(0x0000aaaa),
 204                 cpu_to_le32(0x00000000),
 205                 cpu_to_le32(0x00000000),
 206                 cpu_to_le32(0xf0005000),
 207                 cpu_to_le32(0xf0005000),
 208         },
 209         {
 210                 /* Tx Tx disabled */
 211                 cpu_to_le32(0xaaaaaaaa),
 212                 cpu_to_le32(0xaaaaaaaa),
 213                 cpu_to_le32(0xeeaaaaaa),
 214                 cpu_to_le32(0xaaaaaaaa),
 215                 cpu_to_le32(0xcc00ff28),
 216                 cpu_to_le32(0x0000aaaa),
 217                 cpu_to_le32(0xcc00aaaa),
 218                 cpu_to_le32(0x0000aaaa),
 219                 cpu_to_le32(0xc0004000),
 220                 cpu_to_le32(0xc0004000),
 221                 cpu_to_le32(0xf0005000),
 222                 cpu_to_le32(0xf0005000),
 223         },
 224 };
 225
 226 /* 20MHz / 40MHz below / 40Mhz above*/
 227 static const __le64 iwl_ci_mask[][3] = {
 228         /* dummy entry for channel 0 */
 229         {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
 230         {
 231                 cpu_to_le64(0x0000001FFFULL),
 232                 cpu_to_le64(0x0ULL),
 233                 cpu_to_le64(0x00007FFFFFULL),
 234         },
 235         {
 236                 cpu_to_le64(0x000000FFFFULL),
 237                 cpu_to_le64(0x0ULL),
 238                 cpu_to_le64(0x0003FFFFFFULL),
 239         },
 240         {
 241                 cpu_to_le64(0x000003FFFCULL),
 242                 cpu_to_le64(0x0ULL),
 243                 cpu_to_le64(0x000FFFFFFCULL),
 244         },
 245         {
 246                 cpu_to_le64(0x00001FFFE0ULL),
 247                 cpu_to_le64(0x0ULL),
 248                 cpu_to_le64(0x007FFFFFE0ULL),
 249         },
 250         {
 251                 cpu_to_le64(0x00007FFF80ULL),
 252                 cpu_to_le64(0x00007FFFFFULL),
 253                 cpu_to_le64(0x01FFFFFF80ULL),
 254         },
 255         {
 256                 cpu_to_le64(0x0003FFFC00ULL),
 257                 cpu_to_le64(0x0003FFFFFFULL),
 258                 cpu_to_le64(0x0FFFFFFC00ULL),
 259         },
 260         {
 261                 cpu_to_le64(0x000FFFF000ULL),
 262                 cpu_to_le64(0x000FFFFFFCULL),
 263                 cpu_to_le64(0x3FFFFFF000ULL),
 264         },
 265         {
 266                 cpu_to_le64(0x007FFF8000ULL),
 267                 cpu_to_le64(0x007FFFFFE0ULL),
 268                 cpu_to_le64(0xFFFFFF8000ULL),
 269         },
 270         {
 271                 cpu_to_le64(0x01FFFE0000ULL),
 272                 cpu_to_le64(0x01FFFFFF80ULL),
 273                 cpu_to_le64(0xFFFFFE0000ULL),
 274         },
 275         {
 276                 cpu_to_le64(0x0FFFF00000ULL),
 277                 cpu_to_le64(0x0FFFFFFC00ULL),
 278                 cpu_to_le64(0x0ULL),
 279         },
 280         {
 281                 cpu_to_le64(0x3FFFC00000ULL),
 282                 cpu_to_le64(0x3FFFFFF000ULL),
 283                 cpu_to_le64(0x0)
 284         },
 285         {
 286                 cpu_to_le64(0xFFFE000000ULL),
 287                 cpu_to_le64(0xFFFFFF8000ULL),
 288                 cpu_to_le64(0x0)
 289         },
 290         {
 291                 cpu_to_le64(0xFFF8000000ULL),
 292                 cpu_to_le64(0xFFFFFE0000ULL),
 293                 cpu_to_le64(0x0)
 294         },
 295         {
 296                 cpu_to_le64(0xFFC0000000ULL),
 297                 cpu_to_le64(0x0ULL),
 298                 cpu_to_le64(0x0ULL)
 299         },
 300 };
 301
 302 static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = {
 303         cpu_to_le32(0x22002200),
 304         cpu_to_le32(0x33113311),
 305 };
 306
 307 struct corunning_block_luts {
 308         u8 range;
 309         __le32 lut20[BT_COEX_CORUN_LUT_SIZE];
 310 };
 311
 312 /*
 313  * Ranges for the antenna coupling calibration / co-running block LUT:
 314  *              LUT0: [ 0, 12[
 315  *              LUT1: [12, 20[
 316  *              LUT2: [20, 21[
 317  *              LUT3: [21, 23[
 318  *              LUT4: [23, 27[
 319  *              LUT5: [27, 30[
 320  *              LUT6: [30, 32[
 321  *              LUT7: [32, 33[
 322  *              LUT8: [33, - [
 323  */
 324 static const struct corunning_block_luts antenna_coupling_ranges[] = {
 325         {
 326                 .range = 0,
 327                 .lut20 = {
 328                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 329                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 330                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 331                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 332                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 333                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 334                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 335                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 336                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 337                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 338                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 339                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 340                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 341                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 342                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 343                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 344                 },
 345         },
 346         {
 347                 .range = 12,
 348                 .lut20 = {
 349                         cpu_to_le32(0x00000001),  cpu_to_le32(0x00000000),
 350                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 351                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 352                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 353                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 354                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 355                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 356                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 357                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 358                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 359                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 360                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 361                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 362                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 363                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 364                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 365                 },
 366         },
 367         {
 368                 .range = 20,
 369                 .lut20 = {
 370                         cpu_to_le32(0x00000002),  cpu_to_le32(0x00000000),
 371                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 372                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 373                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 374                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 375                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 376                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 377                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 378                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 379                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 380                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 381                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 382                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 383                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 384                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 385                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 386                 },
 387         },
 388         {
 389                 .range = 21,
 390                 .lut20 = {
 391                         cpu_to_le32(0x00000003),  cpu_to_le32(0x00000000),
 392                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 393                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 394                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 395                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 396                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 397                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 398                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 399                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 400                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 401                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 402                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 403                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 404                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 405                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 406                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 407                 },
 408         },
 409         {
 410                 .range = 23,
 411                 .lut20 = {
 412                         cpu_to_le32(0x00000004),  cpu_to_le32(0x00000000),
 413                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 414                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 415                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 416                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 417                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 418                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 419                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 420                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 421                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 422                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 423                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 424                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 425                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 426                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 427                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 428                 },
 429         },
 430         {
 431                 .range = 27,
 432                 .lut20 = {
 433                         cpu_to_le32(0x00000005),  cpu_to_le32(0x00000000),
 434                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 435                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 436                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 437                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 438                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 439                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 440                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 441                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 442                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 443                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 444                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 445                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 446                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 447                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 448                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 449                 },
 450         },
 451         {
 452                 .range = 30,
 453                 .lut20 = {
 454                         cpu_to_le32(0x00000006),  cpu_to_le32(0x00000000),
 455                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 456                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 457                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 458                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 459                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 460                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 461                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 462                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 463                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 464                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 465                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 466                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 467                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 468                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 469                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 470                 },
 471         },
 472         {
 473                 .range = 32,
 474                 .lut20 = {
 475                         cpu_to_le32(0x00000007),  cpu_to_le32(0x00000000),
 476                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 477                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 478                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 479                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 480                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 481                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 482                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 483                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 484                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 485                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 486                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 487                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 488                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 489                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 490                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 491                 },
 492         },
 493         {
 494                 .range = 33,
 495                 .lut20 = {
 496                         cpu_to_le32(0x00000008),  cpu_to_le32(0x00000000),
 497                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 498                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 499                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 500                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 501                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 502                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 503                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 504                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 505                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 506                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 507                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 508                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 509                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 510                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 511                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 512                 },
 513         },
 514 };
 515
 516 static enum iwl_bt_coex_lut_type
 517 iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
 518 {
 519         struct ieee80211_chanctx_conf *chanctx_conf;
 520         enum iwl_bt_coex_lut_type ret;
 521         u16 phy_ctx_id;
 522
 523         /*
 524          * Checking that we hold mvm->mutex is a good idea, but the rate
 525          * control can't acquire the mutex since it runs in Tx path.
 526          * So this is racy in that case, but in the worst case, the AMPDU
 527          * size limit will be wrong for a short time which is not a big
 528          * issue.
 529          */
 530
 531         rcu_read_lock();
 532
 533         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 534
 535         if (!chanctx_conf ||
 536              chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
 537                 rcu_read_unlock();
 538                 return BT_COEX_LOOSE_LUT;
 539         }
 540
 541         ret = BT_COEX_TX_DIS_LUT;
 542
 543         if (mvm->cfg->bt_shared_single_ant) {
 544                 rcu_read_unlock();
 545                 return ret;
 546         }
 547
 548         phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
 549
 550         if (mvm->last_bt_ci_cmd.primary_ch_phy_id == phy_ctx_id)
 551                 ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut);
 552         else if (mvm->last_bt_ci_cmd.secondary_ch_phy_id == phy_ctx_id)
 553                 ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut);
 554         /* else - default = TX TX disallowed */
 555
 556         rcu_read_unlock();
 557
 558         return ret;
 559 }
 560
 561 int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
 562 {
 563         struct iwl_bt_coex_cmd *bt_cmd;
 564         struct iwl_host_cmd cmd = {
 565                 .id = BT_CONFIG,
 566                 .len = { sizeof(*bt_cmd), },
 567                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 568                 .flags = CMD_SYNC,
 569         };
 570         int ret;
 571         u32 flags;
 572
 573         ret = iwl_send_bt_prio_tbl(mvm);
 574         if (ret)
 575                 return ret;
 576
 577         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
 578         if (!bt_cmd)
 579                 return -ENOMEM;
 580         cmd.data[0] = bt_cmd;
 581
 582         bt_cmd->max_kill = 5;
 583         bt_cmd->bt4_antenna_isolation_thr = BT_ANTENNA_COUPLING_THRESHOLD;
 584         bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling;
 585         bt_cmd->bt4_tx_tx_delta_freq_thr = 15;
 586         bt_cmd->bt4_tx_rx_max_freq0 = 15;
 587         bt_cmd->override_primary_lut = BT_COEX_INVALID_LUT;
 588         bt_cmd->override_secondary_lut = BT_COEX_INVALID_LUT;
 589
 590         flags = iwlwifi_mod_params.bt_coex_active ?
 591                         BT_COEX_NW : BT_COEX_DISABLE;
 592         bt_cmd->flags = cpu_to_le32(flags);
 593
 594         bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE |
 595                                             BT_VALID_BT_PRIO_BOOST |
 596                                             BT_VALID_MAX_KILL |
 597                                             BT_VALID_3W_TMRS |
 598                                             BT_VALID_KILL_ACK |
 599                                             BT_VALID_KILL_CTS |
 600                                             BT_VALID_REDUCED_TX_POWER |
 601                                             BT_VALID_LUT |
 602                                             BT_VALID_WIFI_RX_SW_PRIO_BOOST |
 603                                             BT_VALID_WIFI_TX_SW_PRIO_BOOST |
 604                                             BT_VALID_ANT_ISOLATION |
 605                                             BT_VALID_ANT_ISOLATION_THRS |
 606                                             BT_VALID_TXTX_DELTA_FREQ_THRS |
 607                                             BT_VALID_TXRX_MAX_FREQ_0 |
 608                                             BT_VALID_SYNC_TO_SCO);
 609
 610         if (IWL_MVM_BT_COEX_SYNC2SCO)
 611                 bt_cmd->flags |= cpu_to_le32(BT_COEX_SYNC2SCO);
 612
 613         if (IWL_MVM_BT_COEX_CORUNNING) {
 614                 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_CORUN_LUT_20 |
 615                                                     BT_VALID_CORUN_LUT_40);
 616                 bt_cmd->flags |= cpu_to_le32(BT_COEX_CORUNNING);
 617         }
 618
 619         if (IWL_MVM_BT_COEX_MPLUT) {
 620                 bt_cmd->flags |= cpu_to_le32(BT_COEX_MPLUT);
 621                 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_MULTI_PRIO_LUT);
 622         }
 623
 624         if (mvm->cfg->bt_shared_single_ant)
 625                 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant,
 626                        sizeof(iwl_single_shared_ant));
 627         else
 628                 memcpy(&bt_cmd->decision_lut, iwl_combined_lookup,
 629                        sizeof(iwl_combined_lookup));
 630
 631         /* Take first Co-running block LUT to get started */
 632         memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[0].lut20,
 633                sizeof(bt_cmd->bt4_corun_lut20));
 634         memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[0].lut20,
 635                sizeof(bt_cmd->bt4_corun_lut40));
 636
 637         memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost,
 638                sizeof(iwl_bt_prio_boost));
 639         memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut,
 640                sizeof(iwl_bt_mprio_lut));
 641         bt_cmd->kill_ack_msk =
 642                 cpu_to_le32(iwl_bt_ack_kill_msk[BT_KILL_MSK_DEFAULT]);
 643         bt_cmd->kill_cts_msk =
 644                 cpu_to_le32(iwl_bt_cts_kill_msk[BT_KILL_MSK_DEFAULT]);
 645
 646         memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
 647         memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
 648
 649         ret = iwl_mvm_send_cmd(mvm, &cmd);
 650
 651         kfree(bt_cmd);
 652         return ret;
 653 }
 654
 655 static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm,
 656                                            bool reduced_tx_power)
 657 {
 658         enum iwl_bt_kill_msk bt_kill_msk;
 659         struct iwl_bt_coex_cmd *bt_cmd;
 660         struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
 661         struct iwl_host_cmd cmd = {
 662                 .id = BT_CONFIG,
 663                 .data[0] = &bt_cmd,
 664                 .len = { sizeof(*bt_cmd), },
 665                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 666                 .flags = CMD_SYNC,
 667         };
 668         int ret = 0;
 669
 670         lockdep_assert_held(&mvm->mutex);
 671
 672         if (reduced_tx_power) {
 673                 /* Reduced Tx power has precedence on the type of the profile */
 674                 bt_kill_msk = BT_KILL_MSK_REDUCED_TXPOW;
 675         } else {
 676                 /* Low latency BT profile is active: give higher prio to BT */
 677                 if (BT_MBOX_MSG(notif, 3, SCO_STATE)  ||
 678                     BT_MBOX_MSG(notif, 3, A2DP_STATE) ||
 679                     BT_MBOX_MSG(notif, 3, SNIFF_STATE))
 680                         bt_kill_msk = BT_KILL_MSK_SCO_HID_A2DP;
 681                 else
 682                         bt_kill_msk = BT_KILL_MSK_DEFAULT;
 683         }
 684
 685         IWL_DEBUG_COEX(mvm,
 686                        "Update kill_msk: %d - SCO %sactive A2DP %sactive SNIFF %sactive\n",
 687                        bt_kill_msk,
 688                        BT_MBOX_MSG(notif, 3, SCO_STATE) ? "" : "in",
 689                        BT_MBOX_MSG(notif, 3, A2DP_STATE) ? "" : "in",
 690                        BT_MBOX_MSG(notif, 3, SNIFF_STATE) ? "" : "in");
 691
 692         /* Don't send HCMD if there is no update */
 693         if (bt_kill_msk == mvm->bt_kill_msk)
 694                 return 0;
 695
 696         mvm->bt_kill_msk = bt_kill_msk;
 697
 698         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
 699         if (!bt_cmd)
 700                 return -ENOMEM;
 701         cmd.data[0] = bt_cmd;
 702         bt_cmd->flags = cpu_to_le32(BT_COEX_NW);
 703
 704         bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ack_kill_msk[bt_kill_msk]);
 705         bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_cts_kill_msk[bt_kill_msk]);
 706         bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
 707                                              BT_VALID_KILL_ACK |
 708                                              BT_VALID_KILL_CTS);
 709
 710         IWL_DEBUG_COEX(mvm, "ACK Kill msk = 0x%08x, CTS Kill msk = 0x%08x\n",
 711                        iwl_bt_ack_kill_msk[bt_kill_msk],
 712                        iwl_bt_cts_kill_msk[bt_kill_msk]);
 713
 714         ret = iwl_mvm_send_cmd(mvm, &cmd);
 715
 716         kfree(bt_cmd);
 717         return ret;
 718 }
 719
 720 int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id, bool enable)
 721 {
 722         struct iwl_bt_coex_cmd *bt_cmd;
 723         /* Send ASYNC since this can be sent from an atomic context */
 724         struct iwl_host_cmd cmd = {
 725                 .id = BT_CONFIG,
 726                 .len = { sizeof(*bt_cmd), },
 727                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 728                 .flags = CMD_ASYNC,
 729         };
 730         struct iwl_mvm_sta *mvmsta;
 731         int ret;
 732
 733         mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
 734         if (!mvmsta)
 735                 return 0;
 736
 737         /* nothing to do */
 738         if (mvmsta->bt_reduced_txpower_dbg ||
 739             mvmsta->bt_reduced_txpower == enable)
 740                 return 0;
 741
 742         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC);
 743         if (!bt_cmd)
 744                 return -ENOMEM;
 745         cmd.data[0] = bt_cmd;
 746         bt_cmd->flags = cpu_to_le32(BT_COEX_NW);
 747
 748         bt_cmd->valid_bit_msk =
 749                 cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER);
 750         bt_cmd->bt_reduced_tx_power = sta_id;
 751
 752         if (enable)
 753                 bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT;
 754
 755         IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
 756                        enable ? "en" : "dis", sta_id);
 757
 758         mvmsta->bt_reduced_txpower = enable;
 759
 760         ret = iwl_mvm_send_cmd(mvm, &cmd);
 761
 762         kfree(bt_cmd);
 763         return ret;
 764 }
 765
 766 struct iwl_bt_iterator_data {
 767         struct iwl_bt_coex_profile_notif *notif;
 768         struct iwl_mvm *mvm;
 769         u32 num_bss_ifaces;
 770         bool reduced_tx_power;
 771         struct ieee80211_chanctx_conf *primary;
 772         struct ieee80211_chanctx_conf *secondary;
 773         bool primary_ll;
 774 };
 775
 776 static inline
 777 void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
 778                                        struct ieee80211_vif *vif,
 779                                        bool enable, int rssi)
 780 {
 781         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 782
 783         mvmvif->bf_data.last_bt_coex_event = rssi;
 784         mvmvif->bf_data.bt_coex_max_thold =
 785                 enable ? BT_ENABLE_REDUCED_TXPOWER_THRESHOLD : 0;
 786         mvmvif->bf_data.bt_coex_min_thold =
 787                 enable ? BT_DISABLE_REDUCED_TXPOWER_THRESHOLD : 0;
 788 }
 789
 790 /* must be called under rcu_read_lock */
 791 static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 792                                       struct ieee80211_vif *vif)
 793 {
 794         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 795         struct iwl_bt_iterator_data *data = _data;
 796         struct iwl_mvm *mvm = data->mvm;
 797         struct ieee80211_chanctx_conf *chanctx_conf;
 798         enum ieee80211_smps_mode smps_mode;
 799         u32 bt_activity_grading;
 800         int ave_rssi;
 801
 802         lockdep_assert_held(&mvm->mutex);
 803
 804         switch (vif->type) {
 805         case NL80211_IFTYPE_STATION:
 806                 /* default smps_mode for BSS / P2P client is AUTOMATIC */
 807                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 808                 data->num_bss_ifaces++;
 809
 810                 /*
 811                  * Count unassoc BSSes, relax SMSP constraints
 812                  * and disable reduced Tx Power
 813                  */
 814                 if (!vif->bss_conf.assoc) {
 815                         iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 816                                             smps_mode);
 817                         if (iwl_mvm_bt_coex_reduced_txp(mvm,
 818                                                         mvmvif->ap_sta_id,
 819                                                         false))
 820                                 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 821                         return;
 822                 }
 823                 break;
 824         case NL80211_IFTYPE_AP:
 825                 /* default smps_mode for AP / GO is OFF */
 826                 smps_mode = IEEE80211_SMPS_OFF;
 827                 if (!mvmvif->ap_ibss_active) {
 828                         iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 829                                             smps_mode);
 830                         return;
 831                 }
 832
 833                 /* the Ack / Cts kill mask must be default if AP / GO */
 834                 data->reduced_tx_power = false;
 835                 break;
 836         default:
 837                 return;
 838         }
 839
 840         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 841
 842         /* If channel context is invalid or not on 2.4GHz .. */
 843         if ((!chanctx_conf ||
 844              chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) {
 845                 /* ... relax constraints and disable rssi events */
 846                 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 847                                     smps_mode);
 848                 if (vif->type == NL80211_IFTYPE_STATION)
 849                         iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 850                 return;
 851         }
 852
 853         bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
 854         if (bt_activity_grading >= BT_HIGH_TRAFFIC)
 855                 smps_mode = IEEE80211_SMPS_STATIC;
 856         else if (bt_activity_grading >= BT_LOW_TRAFFIC)
 857                 smps_mode = vif->type == NL80211_IFTYPE_AP ?
 858                                 IEEE80211_SMPS_OFF :
 859                                 IEEE80211_SMPS_DYNAMIC;
 860         IWL_DEBUG_COEX(data->mvm,
 861                        "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n",
 862                        mvmvif->id, data->notif->bt_status, bt_activity_grading,
 863                        smps_mode);
 864
 865         iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, smps_mode);
 866
 867         /* low latency is always primary */
 868         if (iwl_mvm_vif_low_latency(mvmvif)) {
 869                 data->primary_ll = true;
 870
 871                 data->secondary = data->primary;
 872                 data->primary = chanctx_conf;
 873         }
 874
 875         if (vif->type == NL80211_IFTYPE_AP) {
 876                 if (!mvmvif->ap_ibss_active)
 877                         return;
 878
 879                 if (chanctx_conf == data->primary)
 880                         return;
 881
 882                 if (!data->primary_ll) {
 883                         /*
 884                          * downgrade the current primary no matter what its
 885                          * type is.
 886                          */
 887                         data->secondary = data->primary;
 888                         data->primary = chanctx_conf;
 889                 } else {
 890                         /* there is low latency vif - we will be secondary */
 891                         data->secondary = chanctx_conf;
 892                 }
 893                 return;
 894         }
 895
 896         /*
 897          * STA / P2P Client, try to be primary if first vif. If we are in low
 898          * latency mode, we are already in primary and just don't do much
 899          */
 900         if (!data->primary || data->primary == chanctx_conf)
 901                 data->primary = chanctx_conf;
 902         else if (!data->secondary)
 903                 /* if secondary is not NULL, it might be a GO */
 904                 data->secondary = chanctx_conf;
 905
 906         /* don't reduce the Tx power if in loose scheme */
 907         if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
 908             mvm->cfg->bt_shared_single_ant) {
 909                 data->reduced_tx_power = false;
 910                 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 911                 return;
 912         }
 913
 914         /* reduced Txpower only if BT is on, so ...*/
 915         if (!data->notif->bt_status) {
 916                 /* ... cancel reduced Tx power ... */
 917                 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
 918                         IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 919                 data->reduced_tx_power = false;
 920
 921                 /* ... and there is no need to get reports on RSSI any more. */
 922                 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 923                 return;
 924         }
 925
 926         /* try to get the avg rssi from fw */
 927         ave_rssi = mvmvif->bf_data.ave_beacon_signal;
 928
 929         /* if the RSSI isn't valid, fake it is very low */
 930         if (!ave_rssi)
 931                 ave_rssi = -100;
 932         if (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) {
 933                 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true))
 934                         IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 935
 936                 /*
 937                  * bt_kill_msk can be BT_KILL_MSK_REDUCED_TXPOW only if all the
 938                  * BSS / P2P clients have rssi above threshold.
 939                  * We set the bt_kill_msk to BT_KILL_MSK_REDUCED_TXPOW before
 940                  * the iteration, if one interface's rssi isn't good enough,
 941                  * bt_kill_msk will be set to default values.
 942                  */
 943         } else if (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) {
 944                 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
 945                         IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 946
 947                 /*
 948                  * One interface hasn't rssi above threshold, bt_kill_msk must
 949                  * be set to default values.
 950                  */
 951                 data->reduced_tx_power = false;
 952         }
 953
 954         /* Begin to monitor the RSSI: it may influence the reduced Tx power */
 955         iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
 956 }
 957
 958 static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
 959 {
 960         struct iwl_bt_iterator_data data = {
 961                 .mvm = mvm,
 962                 .notif = &mvm->last_bt_notif,
 963                 .reduced_tx_power = true,
 964         };
 965         struct iwl_bt_coex_ci_cmd cmd = {};
 966         u8 ci_bw_idx;
 967
 968         rcu_read_lock();
 969         ieee80211_iterate_active_interfaces_atomic(
 970                                         mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 971                                         iwl_mvm_bt_notif_iterator, &data);
 972
 973         if (data.primary) {
 974                 struct ieee80211_chanctx_conf *chan = data.primary;
 975                 if (WARN_ON(!chan->def.chan)) {
 976                         rcu_read_unlock();
 977                         return;
 978                 }
 979
 980                 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
 981                         ci_bw_idx = 0;
 982                         cmd.co_run_bw_primary = 0;
 983                 } else {
 984                         cmd.co_run_bw_primary = 1;
 985                         if (chan->def.center_freq1 >
 986                             chan->def.chan->center_freq)
 987                                 ci_bw_idx = 2;
 988                         else
 989                                 ci_bw_idx = 1;
 990                 }
 991
 992                 cmd.bt_primary_ci =
 993                         iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
 994                 cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv);
 995         }
 996
 997         if (data.secondary) {
 998                 struct ieee80211_chanctx_conf *chan = data.secondary;
 999                 if (WARN_ON(!data.secondary->def.chan)) {
1000                         rcu_read_unlock();
1001                         return;
1002                 }
1003
1004                 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
1005                         ci_bw_idx = 0;
1006                         cmd.co_run_bw_secondary = 0;
1007                 } else {
1008                         cmd.co_run_bw_secondary = 1;
1009                         if (chan->def.center_freq1 >
1010                             chan->def.chan->center_freq)
1011                                 ci_bw_idx = 2;
1012                         else
1013                                 ci_bw_idx = 1;
1014                 }
1015
1016                 cmd.bt_secondary_ci =
1017                         iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
1018                 cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv);
1019         }
1020
1021         rcu_read_unlock();
1022
1023         /* Don't spam the fw with the same command over and over */
1024         if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) {
1025                 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, CMD_SYNC,
1026                                          sizeof(cmd), &cmd))
1027                         IWL_ERR(mvm, "Failed to send BT_CI cmd");
1028                 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd));
1029         }
1030
1031         /*
1032          * If there are no BSS / P2P client interfaces, reduced Tx Power is
1033          * irrelevant since it is based on the RSSI coming from the beacon.
1034          * Use BT_KILL_MSK_DEFAULT in that case.
1035          */
1036         data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces;
1037
1038         if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power))
1039                 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
1040 }
1041
1042 /* upon association, the fw will send in BT Coex notification */
1043 int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
1044                              struct iwl_rx_cmd_buffer *rxb,
1045                              struct iwl_device_cmd *dev_cmd)
1046 {
1047         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1048         struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data;
1049
1050
1051         IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
1052         IWL_DEBUG_COEX(mvm, "\tBT status: %s\n",
1053                        notif->bt_status ? "ON" : "OFF");
1054         IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn);
1055         IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
1056         IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
1057                        le32_to_cpu(notif->primary_ch_lut));
1058         IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
1059                        le32_to_cpu(notif->secondary_ch_lut));
1060         IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
1061                        le32_to_cpu(notif->bt_activity_grading));
1062         IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n",
1063                        notif->bt_agg_traffic_load);
1064
1065         /* remember this notification for future use: rssi fluctuations */
1066         memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif));
1067
1068         iwl_mvm_bt_coex_notif_handle(mvm);
1069
1070         /*
1071          * This is an async handler for a notification, returning anything other
1072          * than 0 doesn't make sense even if HCMD failed.
1073          */
1074         return 0;
1075 }
1076
1077 static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
1078                                    struct ieee80211_vif *vif)
1079 {
1080         struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1081         struct iwl_bt_iterator_data *data = _data;
1082         struct iwl_mvm *mvm = data->mvm;
1083
1084         struct ieee80211_sta *sta;
1085         struct iwl_mvm_sta *mvmsta;
1086
1087         struct ieee80211_chanctx_conf *chanctx_conf;
1088
1089         rcu_read_lock();
1090         chanctx_conf = rcu_dereference(vif->chanctx_conf);
1091         /* If channel context is invalid or not on 2.4GHz - don't count it */
1092         if (!chanctx_conf ||
1093             chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
1094                 rcu_read_unlock();
1095                 return;
1096         }
1097         rcu_read_unlock();
1098
1099         if (vif->type != NL80211_IFTYPE_STATION ||
1100             mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1101                 return;
1102
1103         sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1104                                         lockdep_is_held(&mvm->mutex));
1105
1106         /* This can happen if the station has been removed right now */
1107         if (IS_ERR_OR_NULL(sta))
1108                 return;
1109
1110         mvmsta = iwl_mvm_sta_from_mac80211(sta);
1111
1112         data->num_bss_ifaces++;
1113
1114         /*
1115          * This interface doesn't support reduced Tx power (because of low
1116          * RSSI probably), then set bt_kill_msk to default values.
1117          */
1118         if (!mvmsta->bt_reduced_txpower)
1119                 data->reduced_tx_power = false;
1120         /* else - possibly leave it to BT_KILL_MSK_REDUCED_TXPOW */
1121 }
1122
1123 void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1124                            enum ieee80211_rssi_event rssi_event)
1125 {
1126         struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1127         struct iwl_bt_iterator_data data = {
1128                 .mvm = mvm,
1129                 .reduced_tx_power = true,
1130         };
1131         int ret;
1132
1133         lockdep_assert_held(&mvm->mutex);
1134
1135         /*
1136          * Rssi update while not associated - can happen since the statistics
1137          * are handled asynchronously
1138          */
1139         if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1140                 return;
1141
1142         /* No BT - reports should be disabled */
1143         if (!mvm->last_bt_notif.bt_status)
1144                 return;
1145
1146         IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
1147                        rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
1148
1149         /*
1150          * Check if rssi is good enough for reduced Tx power, but not in loose
1151          * scheme.
1152          */
1153         if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
1154             iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
1155                 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
1156                                                   false);
1157         else
1158                 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true);
1159
1160         if (ret)
1161                 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
1162
1163         ieee80211_iterate_active_interfaces_atomic(
1164                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1165                 iwl_mvm_bt_rssi_iterator, &data);
1166
1167         /*
1168          * If there are no BSS / P2P client interfaces, reduced Tx Power is
1169          * irrelevant since it is based on the RSSI coming from the beacon.
1170          * Use BT_KILL_MSK_DEFAULT in that case.
1171          */
1172         data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces;
1173
1174         if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power))
1175                 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
1176 }
1177
1178 #define LINK_QUAL_AGG_TIME_LIMIT_DEF    (4000)
1179 #define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
1180
1181 u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm,
1182                                 struct ieee80211_sta *sta)
1183 {
1184         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1185         enum iwl_bt_coex_lut_type lut_type;
1186
1187         if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
1188             BT_HIGH_TRAFFIC)
1189                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1190
1191         lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1192
1193         if (lut_type == BT_COEX_LOOSE_LUT)
1194                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1195
1196         /* tight coex, high bt traffic, reduce AGG time limit */
1197         return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
1198 }
1199
1200 bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
1201                                      struct ieee80211_sta *sta)
1202 {
1203         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1204
1205         if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
1206             BT_HIGH_TRAFFIC)
1207                 return true;
1208
1209         /*
1210          * In Tight, BT can't Rx while we Tx, so use both antennas since BT is
1211          * already killed.
1212          * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while we
1213          * Tx.
1214          */
1215         return iwl_get_coex_type(mvm, mvmsta->vif) == BT_COEX_TIGHT_LUT;
1216 }
1217
1218 bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm,
1219                                     enum ieee80211_band band)
1220 {
1221         u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading);
1222
1223         if (band != IEEE80211_BAND_2GHZ)
1224                 return false;
1225
1226         return bt_activity >= BT_LOW_TRAFFIC;
1227 }
1228
1229 u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
1230                            struct ieee80211_tx_info *info, u8 ac)
1231 {
1232         __le16 fc = hdr->frame_control;
1233
1234         if (info->band != IEEE80211_BAND_2GHZ)
1235                 return 0;
1236
1237         if (unlikely(mvm->bt_tx_prio))
1238                 return mvm->bt_tx_prio - 1;
1239
1240         /* High prio packet (wrt. BT coex) if it is EAPOL, MCAST or MGMT */
1241         if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO ||
1242              is_multicast_ether_addr(hdr->addr1) ||
1243              ieee80211_is_ctl(fc) || ieee80211_is_mgmt(fc) ||
1244              ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc))
1245                 return 3;
1246
1247         switch (ac) {
1248         case IEEE80211_AC_BE:
1249                 return 1;
1250         case IEEE80211_AC_VO:
1251                 return 3;
1252         case IEEE80211_AC_VI:
1253                 return 2;
1254         default:
1255                 break;
1256         }
1257
1258         return 0;
1259 }
1260
1261 void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm)
1262 {
1263         iwl_mvm_bt_coex_notif_handle(mvm);
1264 }
1265
1266 int iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm,
1267                                   struct iwl_rx_cmd_buffer *rxb,
1268                                   struct iwl_device_cmd *dev_cmd)
1269 {
1270         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1271         u32 ant_isolation = le32_to_cpup((void *)pkt->data);
1272         u8 __maybe_unused lower_bound, upper_bound;
1273         int ret;
1274         u8 lut;
1275
1276         struct iwl_bt_coex_cmd *bt_cmd;
1277         struct iwl_host_cmd cmd = {
1278                 .id = BT_CONFIG,
1279                 .len = { sizeof(*bt_cmd), },
1280                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
1281                 .flags = CMD_SYNC,
1282         };
1283
1284         if (!IWL_MVM_BT_COEX_CORUNNING)
1285                 return 0;
1286
1287         lockdep_assert_held(&mvm->mutex);
1288
1289         if (ant_isolation ==  mvm->last_ant_isol)
1290                 return 0;
1291
1292         for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++)
1293                 if (ant_isolation < antenna_coupling_ranges[lut + 1].range)
1294                         break;
1295
1296         lower_bound = antenna_coupling_ranges[lut].range;
1297
1298         if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1)
1299                 upper_bound = antenna_coupling_ranges[lut + 1].range;
1300         else
1301                 upper_bound = antenna_coupling_ranges[lut].range;
1302
1303         IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n",
1304                        ant_isolation, lower_bound, upper_bound, lut);
1305
1306         mvm->last_ant_isol = ant_isolation;
1307
1308         if (mvm->last_corun_lut == lut)
1309                 return 0;
1310
1311         mvm->last_corun_lut = lut;
1312
1313         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
1314         if (!bt_cmd)
1315                 return 0;
1316         cmd.data[0] = bt_cmd;
1317
1318         bt_cmd->flags = cpu_to_le32(BT_COEX_NW);
1319         bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
1320                                              BT_VALID_CORUN_LUT_20 |
1321                                              BT_VALID_CORUN_LUT_40);
1322
1323         /* For the moment, use the same LUT for 20GHz and 40GHz */
1324         memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[lut].lut20,
1325                sizeof(bt_cmd->bt4_corun_lut20));
1326
1327         memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[lut].lut20,
1328                sizeof(bt_cmd->bt4_corun_lut40));
1329
1330         ret = iwl_mvm_send_cmd(mvm, &cmd);
1331
1332         kfree(bt_cmd);
1333         return ret;
1334 }