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

   1 /******************************************************************************
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  60  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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  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_ANTENNA_COUPLING_THRESHOLD           (30)
 104
 105 static int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm)
 106 {
 107         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
 108                 return 0;
 109
 110         return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, 0,
 111                                     sizeof(struct iwl_bt_coex_prio_tbl_cmd),
 112                                     &iwl_bt_prio_tbl);
 113 }
 114
 115 const u32 iwl_bt_ack_kill_msk[BT_KILL_MSK_MAX] = {
 116         [BT_KILL_MSK_DEFAULT] = 0xffff0000,
 117         [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff,
 118         [BT_KILL_MSK_REDUCED_TXPOW] = 0,
 119 };
 120
 121 const u32 iwl_bt_cts_kill_msk[BT_KILL_MSK_MAX] = {
 122         [BT_KILL_MSK_DEFAULT] = 0xffff0000,
 123         [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff,
 124         [BT_KILL_MSK_REDUCED_TXPOW] = 0,
 125 };
 126
 127 static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = {
 128         cpu_to_le32(0xf0f0f0f0), /* 50% */
 129         cpu_to_le32(0xc0c0c0c0), /* 25% */
 130         cpu_to_le32(0xfcfcfcfc), /* 75% */
 131         cpu_to_le32(0xfefefefe), /* 87.5% */
 132 };
 133
 134 static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
 135         {
 136                 cpu_to_le32(0x40000000),
 137                 cpu_to_le32(0x00000000),
 138                 cpu_to_le32(0x44000000),
 139                 cpu_to_le32(0x00000000),
 140                 cpu_to_le32(0x40000000),
 141                 cpu_to_le32(0x00000000),
 142                 cpu_to_le32(0x44000000),
 143                 cpu_to_le32(0x00000000),
 144                 cpu_to_le32(0xc0004000),
 145                 cpu_to_le32(0xf0005000),
 146                 cpu_to_le32(0xc0004000),
 147                 cpu_to_le32(0xf0005000),
 148         },
 149         {
 150                 cpu_to_le32(0x40000000),
 151                 cpu_to_le32(0x00000000),
 152                 cpu_to_le32(0x44000000),
 153                 cpu_to_le32(0x00000000),
 154                 cpu_to_le32(0x40000000),
 155                 cpu_to_le32(0x00000000),
 156                 cpu_to_le32(0x44000000),
 157                 cpu_to_le32(0x00000000),
 158                 cpu_to_le32(0xc0004000),
 159                 cpu_to_le32(0xf0005000),
 160                 cpu_to_le32(0xc0004000),
 161                 cpu_to_le32(0xf0005000),
 162         },
 163         {
 164                 cpu_to_le32(0x40000000),
 165                 cpu_to_le32(0x00000000),
 166                 cpu_to_le32(0x44000000),
 167                 cpu_to_le32(0x00000000),
 168                 cpu_to_le32(0x40000000),
 169                 cpu_to_le32(0x00000000),
 170                 cpu_to_le32(0x44000000),
 171                 cpu_to_le32(0x00000000),
 172                 cpu_to_le32(0xc0004000),
 173                 cpu_to_le32(0xf0005000),
 174                 cpu_to_le32(0xc0004000),
 175                 cpu_to_le32(0xf0005000),
 176         },
 177 };
 178
 179 static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
 180         {
 181                 /* Tight */
 182                 cpu_to_le32(0xaaaaaaaa),
 183                 cpu_to_le32(0xaaaaaaaa),
 184                 cpu_to_le32(0xaeaaaaaa),
 185                 cpu_to_le32(0xaaaaaaaa),
 186                 cpu_to_le32(0xcc00ff28),
 187                 cpu_to_le32(0x0000aaaa),
 188                 cpu_to_le32(0xcc00aaaa),
 189                 cpu_to_le32(0x0000aaaa),
 190                 cpu_to_le32(0xc0004000),
 191                 cpu_to_le32(0x00004000),
 192                 cpu_to_le32(0xf0005000),
 193                 cpu_to_le32(0xf0005000),
 194         },
 195         {
 196                 /* Loose */
 197                 cpu_to_le32(0xaaaaaaaa),
 198                 cpu_to_le32(0xaaaaaaaa),
 199                 cpu_to_le32(0xaaaaaaaa),
 200                 cpu_to_le32(0xaaaaaaaa),
 201                 cpu_to_le32(0xcc00ff28),
 202                 cpu_to_le32(0x0000aaaa),
 203                 cpu_to_le32(0xcc00aaaa),
 204                 cpu_to_le32(0x0000aaaa),
 205                 cpu_to_le32(0x00000000),
 206                 cpu_to_le32(0x00000000),
 207                 cpu_to_le32(0xf0005000),
 208                 cpu_to_le32(0xf0005000),
 209         },
 210         {
 211                 /* Tx Tx disabled */
 212                 cpu_to_le32(0xaaaaaaaa),
 213                 cpu_to_le32(0xaaaaaaaa),
 214                 cpu_to_le32(0xeeaaaaaa),
 215                 cpu_to_le32(0xaaaaaaaa),
 216                 cpu_to_le32(0xcc00ff28),
 217                 cpu_to_le32(0x0000aaaa),
 218                 cpu_to_le32(0xcc00aaaa),
 219                 cpu_to_le32(0x0000aaaa),
 220                 cpu_to_le32(0xc0004000),
 221                 cpu_to_le32(0xc0004000),
 222                 cpu_to_le32(0xf0005000),
 223                 cpu_to_le32(0xf0005000),
 224         },
 225 };
 226
 227 /* 20MHz / 40MHz below / 40Mhz above*/
 228 static const __le64 iwl_ci_mask[][3] = {
 229         /* dummy entry for channel 0 */
 230         {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
 231         {
 232                 cpu_to_le64(0x0000001FFFULL),
 233                 cpu_to_le64(0x0ULL),
 234                 cpu_to_le64(0x00007FFFFFULL),
 235         },
 236         {
 237                 cpu_to_le64(0x000000FFFFULL),
 238                 cpu_to_le64(0x0ULL),
 239                 cpu_to_le64(0x0003FFFFFFULL),
 240         },
 241         {
 242                 cpu_to_le64(0x000003FFFCULL),
 243                 cpu_to_le64(0x0ULL),
 244                 cpu_to_le64(0x000FFFFFFCULL),
 245         },
 246         {
 247                 cpu_to_le64(0x00001FFFE0ULL),
 248                 cpu_to_le64(0x0ULL),
 249                 cpu_to_le64(0x007FFFFFE0ULL),
 250         },
 251         {
 252                 cpu_to_le64(0x00007FFF80ULL),
 253                 cpu_to_le64(0x00007FFFFFULL),
 254                 cpu_to_le64(0x01FFFFFF80ULL),
 255         },
 256         {
 257                 cpu_to_le64(0x0003FFFC00ULL),
 258                 cpu_to_le64(0x0003FFFFFFULL),
 259                 cpu_to_le64(0x0FFFFFFC00ULL),
 260         },
 261         {
 262                 cpu_to_le64(0x000FFFF000ULL),
 263                 cpu_to_le64(0x000FFFFFFCULL),
 264                 cpu_to_le64(0x3FFFFFF000ULL),
 265         },
 266         {
 267                 cpu_to_le64(0x007FFF8000ULL),
 268                 cpu_to_le64(0x007FFFFFE0ULL),
 269                 cpu_to_le64(0xFFFFFF8000ULL),
 270         },
 271         {
 272                 cpu_to_le64(0x01FFFE0000ULL),
 273                 cpu_to_le64(0x01FFFFFF80ULL),
 274                 cpu_to_le64(0xFFFFFE0000ULL),
 275         },
 276         {
 277                 cpu_to_le64(0x0FFFF00000ULL),
 278                 cpu_to_le64(0x0FFFFFFC00ULL),
 279                 cpu_to_le64(0x0ULL),
 280         },
 281         {
 282                 cpu_to_le64(0x3FFFC00000ULL),
 283                 cpu_to_le64(0x3FFFFFF000ULL),
 284                 cpu_to_le64(0x0)
 285         },
 286         {
 287                 cpu_to_le64(0xFFFE000000ULL),
 288                 cpu_to_le64(0xFFFFFF8000ULL),
 289                 cpu_to_le64(0x0)
 290         },
 291         {
 292                 cpu_to_le64(0xFFF8000000ULL),
 293                 cpu_to_le64(0xFFFFFE0000ULL),
 294                 cpu_to_le64(0x0)
 295         },
 296         {
 297                 cpu_to_le64(0xFFC0000000ULL),
 298                 cpu_to_le64(0x0ULL),
 299                 cpu_to_le64(0x0ULL)
 300         },
 301 };
 302
 303 static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = {
 304         cpu_to_le32(0x28412201),
 305         cpu_to_le32(0x11118451),
 306 };
 307
 308 struct corunning_block_luts {
 309         u8 range;
 310         __le32 lut20[BT_COEX_CORUN_LUT_SIZE];
 311 };
 312
 313 /*
 314  * Ranges for the antenna coupling calibration / co-running block LUT:
 315  *              LUT0: [ 0, 12[
 316  *              LUT1: [12, 20[
 317  *              LUT2: [20, 21[
 318  *              LUT3: [21, 23[
 319  *              LUT4: [23, 27[
 320  *              LUT5: [27, 30[
 321  *              LUT6: [30, 32[
 322  *              LUT7: [32, 33[
 323  *              LUT8: [33, - [
 324  */
 325 static const struct corunning_block_luts antenna_coupling_ranges[] = {
 326         {
 327                 .range = 0,
 328                 .lut20 = {
 329                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 330                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 331                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 332                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 333                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 334                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 335                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 336                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 337                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 338                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 339                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 340                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 341                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 342                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 343                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 344                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 345                 },
 346         },
 347         {
 348                 .range = 12,
 349                 .lut20 = {
 350                         cpu_to_le32(0x00000001),  cpu_to_le32(0x00000000),
 351                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 352                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 353                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 354                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 355                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 356                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 357                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 358                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 359                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 360                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 361                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 362                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 363                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 364                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 365                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 366                 },
 367         },
 368         {
 369                 .range = 20,
 370                 .lut20 = {
 371                         cpu_to_le32(0x00000002),  cpu_to_le32(0x00000000),
 372                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 373                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 374                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 375                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 376                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 377                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 378                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 379                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 380                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 381                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 382                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 383                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 384                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 385                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 386                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 387                 },
 388         },
 389         {
 390                 .range = 21,
 391                 .lut20 = {
 392                         cpu_to_le32(0x00000003),  cpu_to_le32(0x00000000),
 393                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 394                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 395                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 396                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 397                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 398                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 399                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 400                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 401                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 402                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 403                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 404                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 405                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 406                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 407                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 408                 },
 409         },
 410         {
 411                 .range = 23,
 412                 .lut20 = {
 413                         cpu_to_le32(0x00000004),  cpu_to_le32(0x00000000),
 414                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 415                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 416                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 417                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 418                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 419                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 420                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 421                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 422                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 423                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 424                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 425                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 426                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 427                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 428                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 429                 },
 430         },
 431         {
 432                 .range = 27,
 433                 .lut20 = {
 434                         cpu_to_le32(0x00000005),  cpu_to_le32(0x00000000),
 435                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 436                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 437                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 438                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 439                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 440                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 441                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 442                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 443                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 444                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 445                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 446                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 447                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 448                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 449                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 450                 },
 451         },
 452         {
 453                 .range = 30,
 454                 .lut20 = {
 455                         cpu_to_le32(0x00000006),  cpu_to_le32(0x00000000),
 456                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 457                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 458                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 459                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 460                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 461                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 462                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 463                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 464                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 465                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 466                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 467                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 468                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 469                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 470                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 471                 },
 472         },
 473         {
 474                 .range = 32,
 475                 .lut20 = {
 476                         cpu_to_le32(0x00000007),  cpu_to_le32(0x00000000),
 477                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 478                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 479                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 480                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 481                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 482                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 483                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 484                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 485                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 486                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 487                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 488                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 489                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 490                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 491                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 492                 },
 493         },
 494         {
 495                 .range = 33,
 496                 .lut20 = {
 497                         cpu_to_le32(0x00000008),  cpu_to_le32(0x00000000),
 498                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 499                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 500                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 501                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 502                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 503                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 504                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 505                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 506                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 507                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 508                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 509                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 510                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 511                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 512                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 513                 },
 514         },
 515 };
 516
 517 static enum iwl_bt_coex_lut_type
 518 iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
 519 {
 520         struct ieee80211_chanctx_conf *chanctx_conf;
 521         enum iwl_bt_coex_lut_type ret;
 522         u16 phy_ctx_id;
 523
 524         /*
 525          * Checking that we hold mvm->mutex is a good idea, but the rate
 526          * control can't acquire the mutex since it runs in Tx path.
 527          * So this is racy in that case, but in the worst case, the AMPDU
 528          * size limit will be wrong for a short time which is not a big
 529          * issue.
 530          */
 531
 532         rcu_read_lock();
 533
 534         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 535
 536         if (!chanctx_conf ||
 537              chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
 538                 rcu_read_unlock();
 539                 return BT_COEX_INVALID_LUT;
 540         }
 541
 542         ret = BT_COEX_TX_DIS_LUT;
 543
 544         if (mvm->cfg->bt_shared_single_ant) {
 545                 rcu_read_unlock();
 546                 return ret;
 547         }
 548
 549         phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
 550
 551         if (mvm->last_bt_ci_cmd.primary_ch_phy_id == phy_ctx_id)
 552                 ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut);
 553         else if (mvm->last_bt_ci_cmd.secondary_ch_phy_id == phy_ctx_id)
 554                 ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut);
 555         /* else - default = TX TX disallowed */
 556
 557         rcu_read_unlock();
 558
 559         return ret;
 560 }
 561
 562 int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
 563 {
 564         struct iwl_bt_coex_cmd *bt_cmd;
 565         struct iwl_host_cmd cmd = {
 566                 .id = BT_CONFIG,
 567                 .len = { sizeof(*bt_cmd), },
 568                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 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         lockdep_assert_held(&mvm->mutex);
 583
 584         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) {
 585                 switch (mvm->bt_force_ant_mode) {
 586                 case BT_FORCE_ANT_AUTO:
 587                         flags = BT_COEX_AUTO;
 588                         break;
 589                 case BT_FORCE_ANT_BT:
 590                         flags = BT_COEX_BT;
 591                         break;
 592                 case BT_FORCE_ANT_WIFI:
 593                         flags = BT_COEX_WIFI;
 594                         break;
 595                 default:
 596                         WARN_ON(1);
 597                         flags = 0;
 598                 }
 599
 600                 bt_cmd->flags = cpu_to_le32(flags);
 601                 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE);
 602                 goto send_cmd;
 603         }
 604
 605         bt_cmd->max_kill = 5;
 606         bt_cmd->bt4_antenna_isolation_thr = BT_ANTENNA_COUPLING_THRESHOLD;
 607         bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling;
 608         bt_cmd->bt4_tx_tx_delta_freq_thr = 15;
 609         bt_cmd->bt4_tx_rx_max_freq0 = 15;
 610         bt_cmd->override_primary_lut = BT_COEX_INVALID_LUT;
 611         bt_cmd->override_secondary_lut = BT_COEX_INVALID_LUT;
 612
 613         flags = iwlwifi_mod_params.bt_coex_active ?
 614                         BT_COEX_NW : BT_COEX_DISABLE;
 615         bt_cmd->flags = cpu_to_le32(flags);
 616
 617         bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE |
 618                                             BT_VALID_BT_PRIO_BOOST |
 619                                             BT_VALID_MAX_KILL |
 620                                             BT_VALID_3W_TMRS |
 621                                             BT_VALID_KILL_ACK |
 622                                             BT_VALID_KILL_CTS |
 623                                             BT_VALID_REDUCED_TX_POWER |
 624                                             BT_VALID_LUT |
 625                                             BT_VALID_WIFI_RX_SW_PRIO_BOOST |
 626                                             BT_VALID_WIFI_TX_SW_PRIO_BOOST |
 627                                             BT_VALID_ANT_ISOLATION |
 628                                             BT_VALID_ANT_ISOLATION_THRS |
 629                                             BT_VALID_TXTX_DELTA_FREQ_THRS |
 630                                             BT_VALID_TXRX_MAX_FREQ_0 |
 631                                             BT_VALID_SYNC_TO_SCO);
 632
 633         if (IWL_MVM_BT_COEX_SYNC2SCO)
 634                 bt_cmd->flags |= cpu_to_le32(BT_COEX_SYNC2SCO);
 635
 636         if (IWL_MVM_BT_COEX_CORUNNING) {
 637                 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_CORUN_LUT_20 |
 638                                                      BT_VALID_CORUN_LUT_40);
 639                 bt_cmd->flags |= cpu_to_le32(BT_COEX_CORUNNING);
 640         }
 641
 642         if (IWL_MVM_BT_COEX_MPLUT) {
 643                 bt_cmd->flags |= cpu_to_le32(BT_COEX_MPLUT);
 644                 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_MULTI_PRIO_LUT);
 645         }
 646
 647         if (mvm->cfg->bt_shared_single_ant)
 648                 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant,
 649                        sizeof(iwl_single_shared_ant));
 650         else
 651                 memcpy(&bt_cmd->decision_lut, iwl_combined_lookup,
 652                        sizeof(iwl_combined_lookup));
 653
 654         /* Take first Co-running block LUT to get started */
 655         memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[0].lut20,
 656                sizeof(bt_cmd->bt4_corun_lut20));
 657         memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[0].lut20,
 658                sizeof(bt_cmd->bt4_corun_lut40));
 659
 660         memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost,
 661                sizeof(iwl_bt_prio_boost));
 662         memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut,
 663                sizeof(iwl_bt_mprio_lut));
 664         bt_cmd->kill_ack_msk =
 665                 cpu_to_le32(iwl_bt_ack_kill_msk[BT_KILL_MSK_DEFAULT]);
 666         bt_cmd->kill_cts_msk =
 667                 cpu_to_le32(iwl_bt_cts_kill_msk[BT_KILL_MSK_DEFAULT]);
 668
 669 send_cmd:
 670         memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
 671         memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
 672
 673         ret = iwl_mvm_send_cmd(mvm, &cmd);
 674
 675         kfree(bt_cmd);
 676         return ret;
 677 }
 678
 679 static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm,
 680                                            bool reduced_tx_power)
 681 {
 682         enum iwl_bt_kill_msk bt_kill_msk;
 683         struct iwl_bt_coex_cmd *bt_cmd;
 684         struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
 685         struct iwl_host_cmd cmd = {
 686                 .id = BT_CONFIG,
 687                 .data[0] = &bt_cmd,
 688                 .len = { sizeof(*bt_cmd), },
 689                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 690         };
 691         int ret = 0;
 692
 693         lockdep_assert_held(&mvm->mutex);
 694
 695         if (reduced_tx_power) {
 696                 /* Reduced Tx power has precedence on the type of the profile */
 697                 bt_kill_msk = BT_KILL_MSK_REDUCED_TXPOW;
 698         } else {
 699                 /* Low latency BT profile is active: give higher prio to BT */
 700                 if (BT_MBOX_MSG(notif, 3, SCO_STATE)  ||
 701                     BT_MBOX_MSG(notif, 3, A2DP_STATE) ||
 702                     BT_MBOX_MSG(notif, 3, SNIFF_STATE))
 703                         bt_kill_msk = BT_KILL_MSK_SCO_HID_A2DP;
 704                 else
 705                         bt_kill_msk = BT_KILL_MSK_DEFAULT;
 706         }
 707
 708         IWL_DEBUG_COEX(mvm,
 709                        "Update kill_msk: %d - SCO %sactive A2DP %sactive SNIFF %sactive\n",
 710                        bt_kill_msk,
 711                        BT_MBOX_MSG(notif, 3, SCO_STATE) ? "" : "in",
 712                        BT_MBOX_MSG(notif, 3, A2DP_STATE) ? "" : "in",
 713                        BT_MBOX_MSG(notif, 3, SNIFF_STATE) ? "" : "in");
 714
 715         /* Don't send HCMD if there is no update */
 716         if (bt_kill_msk == mvm->bt_kill_msk)
 717                 return 0;
 718
 719         mvm->bt_kill_msk = bt_kill_msk;
 720
 721         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
 722         if (!bt_cmd)
 723                 return -ENOMEM;
 724         cmd.data[0] = bt_cmd;
 725         bt_cmd->flags = cpu_to_le32(BT_COEX_NW);
 726
 727         bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ack_kill_msk[bt_kill_msk]);
 728         bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_cts_kill_msk[bt_kill_msk]);
 729         bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
 730                                              BT_VALID_KILL_ACK |
 731                                              BT_VALID_KILL_CTS);
 732
 733         IWL_DEBUG_COEX(mvm, "ACK Kill msk = 0x%08x, CTS Kill msk = 0x%08x\n",
 734                        iwl_bt_ack_kill_msk[bt_kill_msk],
 735                        iwl_bt_cts_kill_msk[bt_kill_msk]);
 736
 737         ret = iwl_mvm_send_cmd(mvm, &cmd);
 738
 739         kfree(bt_cmd);
 740         return ret;
 741 }
 742
 743 static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
 744                                        bool enable)
 745 {
 746         struct iwl_bt_coex_cmd *bt_cmd;
 747         /* Send ASYNC since this can be sent from an atomic context */
 748         struct iwl_host_cmd cmd = {
 749                 .id = BT_CONFIG,
 750                 .len = { sizeof(*bt_cmd), },
 751                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 752                 .flags = CMD_ASYNC,
 753         };
 754         struct iwl_mvm_sta *mvmsta;
 755         int ret;
 756
 757         mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
 758         if (!mvmsta)
 759                 return 0;
 760
 761         /* nothing to do */
 762         if (mvmsta->bt_reduced_txpower == enable)
 763                 return 0;
 764
 765         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC);
 766         if (!bt_cmd)
 767                 return -ENOMEM;
 768         cmd.data[0] = bt_cmd;
 769         bt_cmd->flags = cpu_to_le32(BT_COEX_NW);
 770
 771         bt_cmd->valid_bit_msk =
 772                 cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER);
 773         bt_cmd->bt_reduced_tx_power = sta_id;
 774
 775         if (enable)
 776                 bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT;
 777
 778         IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
 779                        enable ? "en" : "dis", sta_id);
 780
 781         mvmsta->bt_reduced_txpower = enable;
 782
 783         ret = iwl_mvm_send_cmd(mvm, &cmd);
 784
 785         kfree(bt_cmd);
 786         return ret;
 787 }
 788
 789 struct iwl_bt_iterator_data {
 790         struct iwl_bt_coex_profile_notif *notif;
 791         struct iwl_mvm *mvm;
 792         u32 num_bss_ifaces;
 793         bool reduced_tx_power;
 794         struct ieee80211_chanctx_conf *primary;
 795         struct ieee80211_chanctx_conf *secondary;
 796         bool primary_ll;
 797 };
 798
 799 static inline
 800 void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
 801                                        struct ieee80211_vif *vif,
 802                                        bool enable, int rssi)
 803 {
 804         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 805
 806         mvmvif->bf_data.last_bt_coex_event = rssi;
 807         mvmvif->bf_data.bt_coex_max_thold =
 808                 enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0;
 809         mvmvif->bf_data.bt_coex_min_thold =
 810                 enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0;
 811 }
 812
 813 /* must be called under rcu_read_lock */
 814 static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 815                                       struct ieee80211_vif *vif)
 816 {
 817         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 818         struct iwl_bt_iterator_data *data = _data;
 819         struct iwl_mvm *mvm = data->mvm;
 820         struct ieee80211_chanctx_conf *chanctx_conf;
 821         enum ieee80211_smps_mode smps_mode;
 822         u32 bt_activity_grading;
 823         int ave_rssi;
 824
 825         lockdep_assert_held(&mvm->mutex);
 826
 827         switch (vif->type) {
 828         case NL80211_IFTYPE_STATION:
 829                 /* Count BSSes vifs */
 830                 data->num_bss_ifaces++;
 831                 /* default smps_mode for BSS / P2P client is AUTOMATIC */
 832                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 833                 break;
 834         case NL80211_IFTYPE_AP:
 835                 /* default smps_mode for AP / GO is OFF */
 836                 smps_mode = IEEE80211_SMPS_OFF;
 837                 if (!mvmvif->ap_ibss_active) {
 838                         iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 839                                             smps_mode);
 840                         return;
 841                 }
 842
 843                 /* the Ack / Cts kill mask must be default if AP / GO */
 844                 data->reduced_tx_power = false;
 845                 break;
 846         default:
 847                 return;
 848         }
 849
 850         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 851
 852         /* If channel context is invalid or not on 2.4GHz .. */
 853         if ((!chanctx_conf ||
 854              chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) {
 855                 /* ... relax constraints and disable rssi events */
 856                 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 857                                     smps_mode);
 858                 data->reduced_tx_power = false;
 859                 if (vif->type == NL80211_IFTYPE_STATION) {
 860                         iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
 861                                                     false);
 862                         iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 863                 }
 864                 return;
 865         }
 866
 867         bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
 868         if (bt_activity_grading >= BT_HIGH_TRAFFIC)
 869                 smps_mode = IEEE80211_SMPS_STATIC;
 870         else if (bt_activity_grading >= BT_LOW_TRAFFIC)
 871                 smps_mode = vif->type == NL80211_IFTYPE_AP ?
 872                                 IEEE80211_SMPS_OFF :
 873                                 IEEE80211_SMPS_DYNAMIC;
 874
 875         /* relax SMPS contraints for next association */
 876         if (!vif->bss_conf.assoc)
 877                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 878
 879         IWL_DEBUG_COEX(data->mvm,
 880                        "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n",
 881                        mvmvif->id, data->notif->bt_status, bt_activity_grading,
 882                        smps_mode);
 883
 884         iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, smps_mode);
 885
 886         /* low latency is always primary */
 887         if (iwl_mvm_vif_low_latency(mvmvif)) {
 888                 data->primary_ll = true;
 889
 890                 data->secondary = data->primary;
 891                 data->primary = chanctx_conf;
 892         }
 893
 894         if (vif->type == NL80211_IFTYPE_AP) {
 895                 if (!mvmvif->ap_ibss_active)
 896                         return;
 897
 898                 if (chanctx_conf == data->primary)
 899                         return;
 900
 901                 if (!data->primary_ll) {
 902                         /*
 903                          * downgrade the current primary no matter what its
 904                          * type is.
 905                          */
 906                         data->secondary = data->primary;
 907                         data->primary = chanctx_conf;
 908                 } else {
 909                         /* there is low latency vif - we will be secondary */
 910                         data->secondary = chanctx_conf;
 911                 }
 912                 return;
 913         }
 914
 915         /*
 916          * STA / P2P Client, try to be primary if first vif. If we are in low
 917          * latency mode, we are already in primary and just don't do much
 918          */
 919         if (!data->primary || data->primary == chanctx_conf)
 920                 data->primary = chanctx_conf;
 921         else if (!data->secondary)
 922                 /* if secondary is not NULL, it might be a GO */
 923                 data->secondary = chanctx_conf;
 924
 925         /*
 926          * don't reduce the Tx power if one of these is true:
 927          *  we are in LOOSE
 928          *  single share antenna product
 929          *  BT is active
 930          *  we are associated
 931          */
 932         if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
 933             mvm->cfg->bt_shared_single_ant || !vif->bss_conf.assoc ||
 934             !data->notif->bt_status) {
 935                 data->reduced_tx_power = false;
 936                 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false);
 937                 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 938                 return;
 939         }
 940
 941         /* try to get the avg rssi from fw */
 942         ave_rssi = mvmvif->bf_data.ave_beacon_signal;
 943
 944         /* if the RSSI isn't valid, fake it is very low */
 945         if (!ave_rssi)
 946                 ave_rssi = -100;
 947         if (ave_rssi > -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH) {
 948                 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true))
 949                         IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 950
 951                 /*
 952                  * bt_kill_msk can be BT_KILL_MSK_REDUCED_TXPOW only if all the
 953                  * BSS / P2P clients have rssi above threshold.
 954                  * We set the bt_kill_msk to BT_KILL_MSK_REDUCED_TXPOW before
 955                  * the iteration, if one interface's rssi isn't good enough,
 956                  * bt_kill_msk will be set to default values.
 957                  */
 958         } else if (ave_rssi < -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH) {
 959                 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
 960                         IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 961
 962                 /*
 963                  * One interface hasn't rssi above threshold, bt_kill_msk must
 964                  * be set to default values.
 965                  */
 966                 data->reduced_tx_power = false;
 967         }
 968
 969         /* Begin to monitor the RSSI: it may influence the reduced Tx power */
 970         iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
 971 }
 972
 973 static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
 974 {
 975         struct iwl_bt_iterator_data data = {
 976                 .mvm = mvm,
 977                 .notif = &mvm->last_bt_notif,
 978                 .reduced_tx_power = true,
 979         };
 980         struct iwl_bt_coex_ci_cmd cmd = {};
 981         u8 ci_bw_idx;
 982
 983         /* Ignore updates if we are in force mode */
 984         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
 985                 return;
 986
 987         rcu_read_lock();
 988         ieee80211_iterate_active_interfaces_atomic(
 989                                         mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 990                                         iwl_mvm_bt_notif_iterator, &data);
 991
 992         if (data.primary) {
 993                 struct ieee80211_chanctx_conf *chan = data.primary;
 994                 if (WARN_ON(!chan->def.chan)) {
 995                         rcu_read_unlock();
 996                         return;
 997                 }
 998
 999                 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
1000                         ci_bw_idx = 0;
1001                         cmd.co_run_bw_primary = 0;
1002                 } else {
1003                         cmd.co_run_bw_primary = 1;
1004                         if (chan->def.center_freq1 >
1005                             chan->def.chan->center_freq)
1006                                 ci_bw_idx = 2;
1007                         else
1008                                 ci_bw_idx = 1;
1009                 }
1010
1011                 cmd.bt_primary_ci =
1012                         iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
1013                 cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv);
1014         }
1015
1016         if (data.secondary) {
1017                 struct ieee80211_chanctx_conf *chan = data.secondary;
1018                 if (WARN_ON(!data.secondary->def.chan)) {
1019                         rcu_read_unlock();
1020                         return;
1021                 }
1022
1023                 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
1024                         ci_bw_idx = 0;
1025                         cmd.co_run_bw_secondary = 0;
1026                 } else {
1027                         cmd.co_run_bw_secondary = 1;
1028                         if (chan->def.center_freq1 >
1029                             chan->def.chan->center_freq)
1030                                 ci_bw_idx = 2;
1031                         else
1032                                 ci_bw_idx = 1;
1033                 }
1034
1035                 cmd.bt_secondary_ci =
1036                         iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
1037                 cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv);
1038         }
1039
1040         rcu_read_unlock();
1041
1042         /* Don't spam the fw with the same command over and over */
1043         if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) {
1044                 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0,
1045                                          sizeof(cmd), &cmd))
1046                         IWL_ERR(mvm, "Failed to send BT_CI cmd\n");
1047                 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd));
1048         }
1049
1050         /*
1051          * If there are no BSS / P2P client interfaces, reduced Tx Power is
1052          * irrelevant since it is based on the RSSI coming from the beacon.
1053          * Use BT_KILL_MSK_DEFAULT in that case.
1054          */
1055         data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces;
1056
1057         if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power))
1058                 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
1059 }
1060
1061 int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
1062                              struct iwl_rx_cmd_buffer *rxb,
1063                              struct iwl_device_cmd *dev_cmd)
1064 {
1065         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1066         struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data;
1067
1068
1069         IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
1070         IWL_DEBUG_COEX(mvm, "\tBT status: %s\n",
1071                        notif->bt_status ? "ON" : "OFF");
1072         IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn);
1073         IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
1074         IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
1075                        le32_to_cpu(notif->primary_ch_lut));
1076         IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
1077                        le32_to_cpu(notif->secondary_ch_lut));
1078         IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
1079                        le32_to_cpu(notif->bt_activity_grading));
1080         IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n",
1081                        notif->bt_agg_traffic_load);
1082
1083         /* remember this notification for future use: rssi fluctuations */
1084         memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif));
1085
1086         iwl_mvm_bt_coex_notif_handle(mvm);
1087
1088         /*
1089          * This is an async handler for a notification, returning anything other
1090          * than 0 doesn't make sense even if HCMD failed.
1091          */
1092         return 0;
1093 }
1094
1095 static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
1096                                    struct ieee80211_vif *vif)
1097 {
1098         struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1099         struct iwl_bt_iterator_data *data = _data;
1100         struct iwl_mvm *mvm = data->mvm;
1101
1102         struct ieee80211_sta *sta;
1103         struct iwl_mvm_sta *mvmsta;
1104
1105         struct ieee80211_chanctx_conf *chanctx_conf;
1106
1107         rcu_read_lock();
1108         chanctx_conf = rcu_dereference(vif->chanctx_conf);
1109         /* If channel context is invalid or not on 2.4GHz - don't count it */
1110         if (!chanctx_conf ||
1111             chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
1112                 rcu_read_unlock();
1113                 return;
1114         }
1115         rcu_read_unlock();
1116
1117         if (vif->type != NL80211_IFTYPE_STATION ||
1118             mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1119                 return;
1120
1121         sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1122                                         lockdep_is_held(&mvm->mutex));
1123
1124         /* This can happen if the station has been removed right now */
1125         if (IS_ERR_OR_NULL(sta))
1126                 return;
1127
1128         mvmsta = iwl_mvm_sta_from_mac80211(sta);
1129
1130         data->num_bss_ifaces++;
1131
1132         /*
1133          * This interface doesn't support reduced Tx power (because of low
1134          * RSSI probably), then set bt_kill_msk to default values.
1135          */
1136         if (!mvmsta->bt_reduced_txpower)
1137                 data->reduced_tx_power = false;
1138         /* else - possibly leave it to BT_KILL_MSK_REDUCED_TXPOW */
1139 }
1140
1141 void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1142                            enum ieee80211_rssi_event rssi_event)
1143 {
1144         struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1145         struct iwl_bt_iterator_data data = {
1146                 .mvm = mvm,
1147                 .reduced_tx_power = true,
1148         };
1149         int ret;
1150
1151         lockdep_assert_held(&mvm->mutex);
1152
1153         /* Ignore updates if we are in force mode */
1154         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1155                 return;
1156
1157         /*
1158          * Rssi update while not associated - can happen since the statistics
1159          * are handled asynchronously
1160          */
1161         if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1162                 return;
1163
1164         /* No BT - reports should be disabled */
1165         if (!mvm->last_bt_notif.bt_status)
1166                 return;
1167
1168         IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
1169                        rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
1170
1171         /*
1172          * Check if rssi is good enough for reduced Tx power, but not in loose
1173          * scheme.
1174          */
1175         if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
1176             iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
1177                 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
1178                                                   false);
1179         else
1180                 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true);
1181
1182         if (ret)
1183                 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
1184
1185         ieee80211_iterate_active_interfaces_atomic(
1186                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1187                 iwl_mvm_bt_rssi_iterator, &data);
1188
1189         /*
1190          * If there are no BSS / P2P client interfaces, reduced Tx Power is
1191          * irrelevant since it is based on the RSSI coming from the beacon.
1192          * Use BT_KILL_MSK_DEFAULT in that case.
1193          */
1194         data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces;
1195
1196         if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power))
1197                 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
1198 }
1199
1200 #define LINK_QUAL_AGG_TIME_LIMIT_DEF    (4000)
1201 #define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
1202
1203 u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm,
1204                                 struct ieee80211_sta *sta)
1205 {
1206         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1207         enum iwl_bt_coex_lut_type lut_type;
1208
1209         if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
1210             BT_HIGH_TRAFFIC)
1211                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1212
1213         if (mvm->last_bt_notif.ttc_enabled)
1214                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1215
1216         lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1217
1218         if (lut_type == BT_COEX_LOOSE_LUT || lut_type == BT_COEX_INVALID_LUT)
1219                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1220
1221         /* tight coex, high bt traffic, reduce AGG time limit */
1222         return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
1223 }
1224
1225 bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
1226                                      struct ieee80211_sta *sta)
1227 {
1228         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1229         enum iwl_bt_coex_lut_type lut_type;
1230
1231         if (mvm->last_bt_notif.ttc_enabled)
1232                 return true;
1233
1234         if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
1235             BT_HIGH_TRAFFIC)
1236                 return true;
1237
1238         /*
1239          * In Tight / TxTxDis, BT can't Rx while we Tx, so use both antennas
1240          * since BT is already killed.
1241          * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while
1242          * we Tx.
1243          * When we are in 5GHz, we'll get BT_COEX_INVALID_LUT allowing MIMO.
1244          */
1245         lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1246         return lut_type != BT_COEX_LOOSE_LUT;
1247 }
1248
1249 bool iwl_mvm_bt_coex_is_shared_ant_avail(struct iwl_mvm *mvm)
1250 {
1251         return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF;
1252 }
1253
1254 bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm,
1255                                     enum ieee80211_band band)
1256 {
1257         u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading);
1258
1259         if (band != IEEE80211_BAND_2GHZ)
1260                 return false;
1261
1262         return bt_activity >= BT_LOW_TRAFFIC;
1263 }
1264
1265 u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
1266                            struct ieee80211_tx_info *info, u8 ac)
1267 {
1268         __le16 fc = hdr->frame_control;
1269
1270         if (info->band != IEEE80211_BAND_2GHZ)
1271                 return 0;
1272
1273         if (unlikely(mvm->bt_tx_prio))
1274                 return mvm->bt_tx_prio - 1;
1275
1276         /* High prio packet (wrt. BT coex) if it is EAPOL, MCAST or MGMT */
1277         if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO ||
1278              is_multicast_ether_addr(hdr->addr1) ||
1279              ieee80211_is_ctl(fc) || ieee80211_is_mgmt(fc) ||
1280              ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc))
1281                 return 3;
1282
1283         switch (ac) {
1284         case IEEE80211_AC_BE:
1285                 return 1;
1286         case IEEE80211_AC_VO:
1287                 return 3;
1288         case IEEE80211_AC_VI:
1289                 return 2;
1290         default:
1291                 break;
1292         }
1293
1294         return 0;
1295 }
1296
1297 void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm)
1298 {
1299         iwl_mvm_bt_coex_notif_handle(mvm);
1300 }
1301
1302 int iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm,
1303                                   struct iwl_rx_cmd_buffer *rxb,
1304                                   struct iwl_device_cmd *dev_cmd)
1305 {
1306         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1307         u32 ant_isolation = le32_to_cpup((void *)pkt->data);
1308         u8 __maybe_unused lower_bound, upper_bound;
1309         int ret;
1310         u8 lut;
1311
1312         struct iwl_bt_coex_cmd *bt_cmd;
1313         struct iwl_host_cmd cmd = {
1314                 .id = BT_CONFIG,
1315                 .len = { sizeof(*bt_cmd), },
1316                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
1317         };
1318
1319         if (!IWL_MVM_BT_COEX_CORUNNING)
1320                 return 0;
1321
1322         lockdep_assert_held(&mvm->mutex);
1323
1324         /* Ignore updates if we are in force mode */
1325         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1326                 return 0;
1327
1328         if (ant_isolation ==  mvm->last_ant_isol)
1329                 return 0;
1330
1331         for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++)
1332                 if (ant_isolation < antenna_coupling_ranges[lut + 1].range)
1333                         break;
1334
1335         lower_bound = antenna_coupling_ranges[lut].range;
1336
1337         if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1)
1338                 upper_bound = antenna_coupling_ranges[lut + 1].range;
1339         else
1340                 upper_bound = antenna_coupling_ranges[lut].range;
1341
1342         IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n",
1343                        ant_isolation, lower_bound, upper_bound, lut);
1344
1345         mvm->last_ant_isol = ant_isolation;
1346
1347         if (mvm->last_corun_lut == lut)
1348                 return 0;
1349
1350         mvm->last_corun_lut = lut;
1351
1352         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
1353         if (!bt_cmd)
1354                 return 0;
1355         cmd.data[0] = bt_cmd;
1356
1357         bt_cmd->flags = cpu_to_le32(BT_COEX_NW);
1358         bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
1359                                              BT_VALID_CORUN_LUT_20 |
1360                                              BT_VALID_CORUN_LUT_40);
1361
1362         /* For the moment, use the same LUT for 20GHz and 40GHz */
1363         memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[lut].lut20,
1364                sizeof(bt_cmd->bt4_corun_lut20));
1365
1366         memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[lut].lut20,
1367                sizeof(bt_cmd->bt4_corun_lut40));
1368
1369         ret = iwl_mvm_send_cmd(mvm, &cmd);
1370
1371         kfree(bt_cmd);
1372         return ret;
1373 }