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

   1 /******************************************************************************
   2  *
   3  * This file is provided under a dual BSD/GPLv2 license.  When using or
   4  * redistributing this file, you may do so under either license.
   5  *
   6  * GPL LICENSE SUMMARY
   7  *
   8  * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of version 2 of the GNU General Public License as
  12  * published by the Free Software Foundation.
  13  *
  14  * This program is distributed in the hope that it will be useful, but
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  28  *  Intel Linux Wireless <ilw@linux.intel.com>
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  32  *
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  43  *    notice, this list of conditions and the following disclaimer in
  44  *    the documentation and/or other materials provided with the
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  47  *    contributors may be used to endorse or promote products derived
  48  *    from this software without specific prior written permission.
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  50  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  51  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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  53  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  54  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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  56  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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  58  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  59  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  60  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  61  *
  62  *****************************************************************************/
  63
  64 #include <linux/ieee80211.h>
  65 #include <linux/etherdevice.h>
  66 #include <net/mac80211.h>
  67
  68 #include "fw-api-coex.h"
  69 #include "iwl-modparams.h"
  70 #include "mvm.h"
  71 #include "iwl-debug.h"
  72
  73 #define 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 static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = {
 116         cpu_to_le32(0xf0f0f0f0), /* 50% */
 117         cpu_to_le32(0xc0c0c0c0), /* 25% */
 118         cpu_to_le32(0xfcfcfcfc), /* 75% */
 119         cpu_to_le32(0xfefefefe), /* 87.5% */
 120 };
 121
 122 static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
 123         {
 124                 cpu_to_le32(0x40000000),
 125                 cpu_to_le32(0x00000000),
 126                 cpu_to_le32(0x44000000),
 127                 cpu_to_le32(0x00000000),
 128                 cpu_to_le32(0x40000000),
 129                 cpu_to_le32(0x00000000),
 130                 cpu_to_le32(0x44000000),
 131                 cpu_to_le32(0x00000000),
 132                 cpu_to_le32(0xc0004000),
 133                 cpu_to_le32(0xf0005000),
 134                 cpu_to_le32(0xc0004000),
 135                 cpu_to_le32(0xf0005000),
 136         },
 137         {
 138                 cpu_to_le32(0x40000000),
 139                 cpu_to_le32(0x00000000),
 140                 cpu_to_le32(0x44000000),
 141                 cpu_to_le32(0x00000000),
 142                 cpu_to_le32(0x40000000),
 143                 cpu_to_le32(0x00000000),
 144                 cpu_to_le32(0x44000000),
 145                 cpu_to_le32(0x00000000),
 146                 cpu_to_le32(0xc0004000),
 147                 cpu_to_le32(0xf0005000),
 148                 cpu_to_le32(0xc0004000),
 149                 cpu_to_le32(0xf0005000),
 150         },
 151         {
 152                 cpu_to_le32(0x40000000),
 153                 cpu_to_le32(0x00000000),
 154                 cpu_to_le32(0x44000000),
 155                 cpu_to_le32(0x00000000),
 156                 cpu_to_le32(0x40000000),
 157                 cpu_to_le32(0x00000000),
 158                 cpu_to_le32(0x44000000),
 159                 cpu_to_le32(0x00000000),
 160                 cpu_to_le32(0xc0004000),
 161                 cpu_to_le32(0xf0005000),
 162                 cpu_to_le32(0xc0004000),
 163                 cpu_to_le32(0xf0005000),
 164         },
 165 };
 166
 167 static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
 168         {
 169                 /* Tight */
 170                 cpu_to_le32(0xaaaaaaaa),
 171                 cpu_to_le32(0xaaaaaaaa),
 172                 cpu_to_le32(0xaeaaaaaa),
 173                 cpu_to_le32(0xaaaaaaaa),
 174                 cpu_to_le32(0xcc00ff28),
 175                 cpu_to_le32(0x0000aaaa),
 176                 cpu_to_le32(0xcc00aaaa),
 177                 cpu_to_le32(0x0000aaaa),
 178                 cpu_to_le32(0xc0004000),
 179                 cpu_to_le32(0x00004000),
 180                 cpu_to_le32(0xf0005000),
 181                 cpu_to_le32(0xf0005000),
 182         },
 183         {
 184                 /* Loose */
 185                 cpu_to_le32(0xaaaaaaaa),
 186                 cpu_to_le32(0xaaaaaaaa),
 187                 cpu_to_le32(0xaaaaaaaa),
 188                 cpu_to_le32(0xaaaaaaaa),
 189                 cpu_to_le32(0xcc00ff28),
 190                 cpu_to_le32(0x0000aaaa),
 191                 cpu_to_le32(0xcc00aaaa),
 192                 cpu_to_le32(0x0000aaaa),
 193                 cpu_to_le32(0x00000000),
 194                 cpu_to_le32(0x00000000),
 195                 cpu_to_le32(0xf0005000),
 196                 cpu_to_le32(0xf0005000),
 197         },
 198         {
 199                 /* Tx Tx disabled */
 200                 cpu_to_le32(0xaaaaaaaa),
 201                 cpu_to_le32(0xaaaaaaaa),
 202                 cpu_to_le32(0xeeaaaaaa),
 203                 cpu_to_le32(0xaaaaaaaa),
 204                 cpu_to_le32(0xcc00ff28),
 205                 cpu_to_le32(0x0000aaaa),
 206                 cpu_to_le32(0xcc00aaaa),
 207                 cpu_to_le32(0x0000aaaa),
 208                 cpu_to_le32(0xc0004000),
 209                 cpu_to_le32(0xc0004000),
 210                 cpu_to_le32(0xf0005000),
 211                 cpu_to_le32(0xf0005000),
 212         },
 213 };
 214
 215 /* 20MHz / 40MHz below / 40Mhz above*/
 216 static const __le64 iwl_ci_mask[][3] = {
 217         /* dummy entry for channel 0 */
 218         {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
 219         {
 220                 cpu_to_le64(0x0000001FFFULL),
 221                 cpu_to_le64(0x0ULL),
 222                 cpu_to_le64(0x00007FFFFFULL),
 223         },
 224         {
 225                 cpu_to_le64(0x000000FFFFULL),
 226                 cpu_to_le64(0x0ULL),
 227                 cpu_to_le64(0x0003FFFFFFULL),
 228         },
 229         {
 230                 cpu_to_le64(0x000003FFFCULL),
 231                 cpu_to_le64(0x0ULL),
 232                 cpu_to_le64(0x000FFFFFFCULL),
 233         },
 234         {
 235                 cpu_to_le64(0x00001FFFE0ULL),
 236                 cpu_to_le64(0x0ULL),
 237                 cpu_to_le64(0x007FFFFFE0ULL),
 238         },
 239         {
 240                 cpu_to_le64(0x00007FFF80ULL),
 241                 cpu_to_le64(0x00007FFFFFULL),
 242                 cpu_to_le64(0x01FFFFFF80ULL),
 243         },
 244         {
 245                 cpu_to_le64(0x0003FFFC00ULL),
 246                 cpu_to_le64(0x0003FFFFFFULL),
 247                 cpu_to_le64(0x0FFFFFFC00ULL),
 248         },
 249         {
 250                 cpu_to_le64(0x000FFFF000ULL),
 251                 cpu_to_le64(0x000FFFFFFCULL),
 252                 cpu_to_le64(0x3FFFFFF000ULL),
 253         },
 254         {
 255                 cpu_to_le64(0x007FFF8000ULL),
 256                 cpu_to_le64(0x007FFFFFE0ULL),
 257                 cpu_to_le64(0xFFFFFF8000ULL),
 258         },
 259         {
 260                 cpu_to_le64(0x01FFFE0000ULL),
 261                 cpu_to_le64(0x01FFFFFF80ULL),
 262                 cpu_to_le64(0xFFFFFE0000ULL),
 263         },
 264         {
 265                 cpu_to_le64(0x0FFFF00000ULL),
 266                 cpu_to_le64(0x0FFFFFFC00ULL),
 267                 cpu_to_le64(0x0ULL),
 268         },
 269         {
 270                 cpu_to_le64(0x3FFFC00000ULL),
 271                 cpu_to_le64(0x3FFFFFF000ULL),
 272                 cpu_to_le64(0x0)
 273         },
 274         {
 275                 cpu_to_le64(0xFFFE000000ULL),
 276                 cpu_to_le64(0xFFFFFF8000ULL),
 277                 cpu_to_le64(0x0)
 278         },
 279         {
 280                 cpu_to_le64(0xFFF8000000ULL),
 281                 cpu_to_le64(0xFFFFFE0000ULL),
 282                 cpu_to_le64(0x0)
 283         },
 284         {
 285                 cpu_to_le64(0xFFC0000000ULL),
 286                 cpu_to_le64(0x0ULL),
 287                 cpu_to_le64(0x0ULL)
 288         },
 289 };
 290
 291 static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = {
 292         cpu_to_le32(0x28412201),
 293         cpu_to_le32(0x11118451),
 294 };
 295
 296 struct corunning_block_luts {
 297         u8 range;
 298         __le32 lut20[BT_COEX_CORUN_LUT_SIZE];
 299 };
 300
 301 /*
 302  * Ranges for the antenna coupling calibration / co-running block LUT:
 303  *              LUT0: [ 0, 12[
 304  *              LUT1: [12, 20[
 305  *              LUT2: [20, 21[
 306  *              LUT3: [21, 23[
 307  *              LUT4: [23, 27[
 308  *              LUT5: [27, 30[
 309  *              LUT6: [30, 32[
 310  *              LUT7: [32, 33[
 311  *              LUT8: [33, - [
 312  */
 313 static const struct corunning_block_luts antenna_coupling_ranges[] = {
 314         {
 315                 .range = 0,
 316                 .lut20 = {
 317                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 318                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 319                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 320                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 321                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 322                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 323                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 324                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 325                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 326                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 327                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 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                 },
 334         },
 335         {
 336                 .range = 12,
 337                 .lut20 = {
 338                         cpu_to_le32(0x00000001),  cpu_to_le32(0x00000000),
 339                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 340                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 341                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 342                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 343                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 344                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 345                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 346                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 347                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 348                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 349                         cpu_to_le32(0x00000000),  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                 },
 355         },
 356         {
 357                 .range = 20,
 358                 .lut20 = {
 359                         cpu_to_le32(0x00000002),  cpu_to_le32(0x00000000),
 360                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 361                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 362                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 363                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 364                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 365                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 366                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 367                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 368                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 369                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 370                         cpu_to_le32(0x00000000),  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                 },
 376         },
 377         {
 378                 .range = 21,
 379                 .lut20 = {
 380                         cpu_to_le32(0x00000003),  cpu_to_le32(0x00000000),
 381                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 382                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 383                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 384                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 385                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 386                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 387                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 388                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 389                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 390                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 391                         cpu_to_le32(0x00000000),  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                 },
 397         },
 398         {
 399                 .range = 23,
 400                 .lut20 = {
 401                         cpu_to_le32(0x00000004),  cpu_to_le32(0x00000000),
 402                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 403                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 404                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 405                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 406                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 407                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 408                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 409                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 410                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 411                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 412                         cpu_to_le32(0x00000000),  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                 },
 418         },
 419         {
 420                 .range = 27,
 421                 .lut20 = {
 422                         cpu_to_le32(0x00000005),  cpu_to_le32(0x00000000),
 423                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 424                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 425                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 426                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 427                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 428                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 429                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 430                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 431                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 432                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 433                         cpu_to_le32(0x00000000),  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                 },
 439         },
 440         {
 441                 .range = 30,
 442                 .lut20 = {
 443                         cpu_to_le32(0x00000006),  cpu_to_le32(0x00000000),
 444                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 445                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 446                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 447                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 448                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 449                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 450                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 451                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 452                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 453                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 454                         cpu_to_le32(0x00000000),  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                 },
 460         },
 461         {
 462                 .range = 32,
 463                 .lut20 = {
 464                         cpu_to_le32(0x00000007),  cpu_to_le32(0x00000000),
 465                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 466                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 467                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 468                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 469                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 470                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 471                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 472                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 473                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 474                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 475                         cpu_to_le32(0x00000000),  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                 },
 481         },
 482         {
 483                 .range = 33,
 484                 .lut20 = {
 485                         cpu_to_le32(0x00000008),  cpu_to_le32(0x00000000),
 486                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 487                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 488                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 489                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 490                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 491                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 492                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 493                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 494                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 495                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 496                         cpu_to_le32(0x00000000),  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                 },
 502         },
 503 };
 504
 505 static enum iwl_bt_coex_lut_type
 506 iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
 507 {
 508         struct ieee80211_chanctx_conf *chanctx_conf;
 509         enum iwl_bt_coex_lut_type ret;
 510         u16 phy_ctx_id;
 511
 512         /*
 513          * Checking that we hold mvm->mutex is a good idea, but the rate
 514          * control can't acquire the mutex since it runs in Tx path.
 515          * So this is racy in that case, but in the worst case, the AMPDU
 516          * size limit will be wrong for a short time which is not a big
 517          * issue.
 518          */
 519
 520         rcu_read_lock();
 521
 522         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 523
 524         if (!chanctx_conf ||
 525             chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
 526                 rcu_read_unlock();
 527                 return BT_COEX_INVALID_LUT;
 528         }
 529
 530         ret = BT_COEX_TX_DIS_LUT;
 531
 532         if (mvm->cfg->bt_shared_single_ant) {
 533                 rcu_read_unlock();
 534                 return ret;
 535         }
 536
 537         phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
 538
 539         if (mvm->last_bt_ci_cmd_old.primary_ch_phy_id == phy_ctx_id)
 540                 ret = le32_to_cpu(mvm->last_bt_notif_old.primary_ch_lut);
 541         else if (mvm->last_bt_ci_cmd_old.secondary_ch_phy_id == phy_ctx_id)
 542                 ret = le32_to_cpu(mvm->last_bt_notif_old.secondary_ch_lut);
 543         /* else - default = TX TX disallowed */
 544
 545         rcu_read_unlock();
 546
 547         return ret;
 548 }
 549
 550 int iwl_send_bt_init_conf_old(struct iwl_mvm *mvm)
 551 {
 552         struct iwl_bt_coex_cmd_old *bt_cmd;
 553         struct iwl_host_cmd cmd = {
 554                 .id = BT_CONFIG,
 555                 .len = { sizeof(*bt_cmd), },
 556                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 557         };
 558         int ret;
 559         u32 flags;
 560
 561         ret = iwl_send_bt_prio_tbl(mvm);
 562         if (ret)
 563                 return ret;
 564
 565         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
 566         if (!bt_cmd)
 567                 return -ENOMEM;
 568         cmd.data[0] = bt_cmd;
 569
 570         lockdep_assert_held(&mvm->mutex);
 571
 572         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) {
 573                 switch (mvm->bt_force_ant_mode) {
 574                 case BT_FORCE_ANT_AUTO:
 575                         flags = BT_COEX_AUTO_OLD;
 576                         break;
 577                 case BT_FORCE_ANT_BT:
 578                         flags = BT_COEX_BT_OLD;
 579                         break;
 580                 case BT_FORCE_ANT_WIFI:
 581                         flags = BT_COEX_WIFI_OLD;
 582                         break;
 583                 default:
 584                         WARN_ON(1);
 585                         flags = 0;
 586                 }
 587
 588                 bt_cmd->flags = cpu_to_le32(flags);
 589                 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE);
 590                 goto send_cmd;
 591         }
 592
 593         bt_cmd->max_kill = 5;
 594         bt_cmd->bt4_antenna_isolation_thr = BT_ANTENNA_COUPLING_THRESHOLD;
 595         bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling;
 596         bt_cmd->bt4_tx_tx_delta_freq_thr = 15;
 597         bt_cmd->bt4_tx_rx_max_freq0 = 15;
 598         bt_cmd->override_primary_lut = BT_COEX_INVALID_LUT;
 599         bt_cmd->override_secondary_lut = BT_COEX_INVALID_LUT;
 600
 601         flags = iwlwifi_mod_params.bt_coex_active ?
 602                         BT_COEX_NW_OLD : BT_COEX_DISABLE_OLD;
 603         bt_cmd->flags = cpu_to_le32(flags);
 604
 605         bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE |
 606                                             BT_VALID_BT_PRIO_BOOST |
 607                                             BT_VALID_MAX_KILL |
 608                                             BT_VALID_3W_TMRS |
 609                                             BT_VALID_KILL_ACK |
 610                                             BT_VALID_KILL_CTS |
 611                                             BT_VALID_REDUCED_TX_POWER |
 612                                             BT_VALID_LUT |
 613                                             BT_VALID_WIFI_RX_SW_PRIO_BOOST |
 614                                             BT_VALID_WIFI_TX_SW_PRIO_BOOST |
 615                                             BT_VALID_ANT_ISOLATION |
 616                                             BT_VALID_ANT_ISOLATION_THRS |
 617                                             BT_VALID_TXTX_DELTA_FREQ_THRS |
 618                                             BT_VALID_TXRX_MAX_FREQ_0 |
 619                                             BT_VALID_SYNC_TO_SCO);
 620
 621         if (IWL_MVM_BT_COEX_SYNC2SCO)
 622                 bt_cmd->flags |= cpu_to_le32(BT_COEX_SYNC2SCO);
 623
 624         if (IWL_MVM_BT_COEX_CORUNNING) {
 625                 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_CORUN_LUT_20 |
 626                                                      BT_VALID_CORUN_LUT_40);
 627                 bt_cmd->flags |= cpu_to_le32(BT_COEX_CORUNNING);
 628         }
 629
 630         if (IWL_MVM_BT_COEX_MPLUT) {
 631                 bt_cmd->flags |= cpu_to_le32(BT_COEX_MPLUT);
 632                 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_MULTI_PRIO_LUT);
 633         }
 634
 635         if (mvm->cfg->bt_shared_single_ant)
 636                 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant,
 637                        sizeof(iwl_single_shared_ant));
 638         else
 639                 memcpy(&bt_cmd->decision_lut, iwl_combined_lookup,
 640                        sizeof(iwl_combined_lookup));
 641
 642         /* Take first Co-running block LUT to get started */
 643         memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[0].lut20,
 644                sizeof(bt_cmd->bt4_corun_lut20));
 645         memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[0].lut20,
 646                sizeof(bt_cmd->bt4_corun_lut40));
 647
 648         memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost,
 649                sizeof(iwl_bt_prio_boost));
 650         memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut,
 651                sizeof(iwl_bt_mprio_lut));
 652
 653 send_cmd:
 654         memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
 655         memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
 656
 657         ret = iwl_mvm_send_cmd(mvm, &cmd);
 658
 659         kfree(bt_cmd);
 660         return ret;
 661 }
 662
 663 static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm)
 664 {
 665         struct iwl_bt_coex_profile_notif_old *notif = &mvm->last_bt_notif_old;
 666         u32 primary_lut = le32_to_cpu(notif->primary_ch_lut);
 667         u32 ag = le32_to_cpu(notif->bt_activity_grading);
 668         struct iwl_bt_coex_cmd_old *bt_cmd;
 669         u8 ack_kill_msk, cts_kill_msk;
 670         struct iwl_host_cmd cmd = {
 671                 .id = BT_CONFIG,
 672                 .data[0] = &bt_cmd,
 673                 .len = { sizeof(*bt_cmd), },
 674                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 675         };
 676         int ret = 0;
 677
 678         lockdep_assert_held(&mvm->mutex);
 679
 680         ack_kill_msk = iwl_bt_ack_kill_msk[ag][primary_lut];
 681         cts_kill_msk = iwl_bt_cts_kill_msk[ag][primary_lut];
 682
 683         if (mvm->bt_ack_kill_msk[0] == ack_kill_msk &&
 684             mvm->bt_cts_kill_msk[0] == cts_kill_msk)
 685                 return 0;
 686
 687         mvm->bt_ack_kill_msk[0] = ack_kill_msk;
 688         mvm->bt_cts_kill_msk[0] = cts_kill_msk;
 689
 690         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
 691         if (!bt_cmd)
 692                 return -ENOMEM;
 693         cmd.data[0] = bt_cmd;
 694         bt_cmd->flags = cpu_to_le32(BT_COEX_NW_OLD);
 695
 696         bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ctl_kill_msk[ack_kill_msk]);
 697         bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_ctl_kill_msk[cts_kill_msk]);
 698         bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
 699                                              BT_VALID_KILL_ACK |
 700                                              BT_VALID_KILL_CTS);
 701
 702         ret = iwl_mvm_send_cmd(mvm, &cmd);
 703
 704         kfree(bt_cmd);
 705         return ret;
 706 }
 707
 708 static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
 709                                        bool enable)
 710 {
 711         struct iwl_bt_coex_cmd_old *bt_cmd;
 712         /* Send ASYNC since this can be sent from an atomic context */
 713         struct iwl_host_cmd cmd = {
 714                 .id = BT_CONFIG,
 715                 .len = { sizeof(*bt_cmd), },
 716                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 717                 .flags = CMD_ASYNC,
 718         };
 719         struct iwl_mvm_sta *mvmsta;
 720         int ret;
 721
 722         mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
 723         if (!mvmsta)
 724                 return 0;
 725
 726         /* nothing to do */
 727         if (mvmsta->bt_reduced_txpower == enable)
 728                 return 0;
 729
 730         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC);
 731         if (!bt_cmd)
 732                 return -ENOMEM;
 733         cmd.data[0] = bt_cmd;
 734         bt_cmd->flags = cpu_to_le32(BT_COEX_NW_OLD);
 735
 736         bt_cmd->valid_bit_msk =
 737                 cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER);
 738         bt_cmd->bt_reduced_tx_power = sta_id;
 739
 740         if (enable)
 741                 bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT;
 742
 743         IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
 744                        enable ? "en" : "dis", sta_id);
 745
 746         mvmsta->bt_reduced_txpower = enable;
 747
 748         ret = iwl_mvm_send_cmd(mvm, &cmd);
 749
 750         kfree(bt_cmd);
 751         return ret;
 752 }
 753
 754 struct iwl_bt_iterator_data {
 755         struct iwl_bt_coex_profile_notif_old *notif;
 756         struct iwl_mvm *mvm;
 757         struct ieee80211_chanctx_conf *primary;
 758         struct ieee80211_chanctx_conf *secondary;
 759         bool primary_ll;
 760 };
 761
 762 static inline
 763 void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
 764                                        struct ieee80211_vif *vif,
 765                                        bool enable, int rssi)
 766 {
 767         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 768
 769         mvmvif->bf_data.last_bt_coex_event = rssi;
 770         mvmvif->bf_data.bt_coex_max_thold =
 771                 enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0;
 772         mvmvif->bf_data.bt_coex_min_thold =
 773                 enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0;
 774 }
 775
 776 /* must be called under rcu_read_lock */
 777 static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 778                                       struct ieee80211_vif *vif)
 779 {
 780         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 781         struct iwl_bt_iterator_data *data = _data;
 782         struct iwl_mvm *mvm = data->mvm;
 783         struct ieee80211_chanctx_conf *chanctx_conf;
 784         enum ieee80211_smps_mode smps_mode;
 785         u32 bt_activity_grading;
 786         int ave_rssi;
 787
 788         lockdep_assert_held(&mvm->mutex);
 789
 790         switch (vif->type) {
 791         case NL80211_IFTYPE_STATION:
 792                 /* default smps_mode for BSS / P2P client is AUTOMATIC */
 793                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 794                 break;
 795         case NL80211_IFTYPE_AP:
 796                 if (!mvmvif->ap_ibss_active)
 797                         return;
 798                 break;
 799         default:
 800                 return;
 801         }
 802
 803         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 804
 805         /* If channel context is invalid or not on 2.4GHz .. */
 806         if ((!chanctx_conf ||
 807              chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) {
 808                 if (vif->type == NL80211_IFTYPE_STATION) {
 809                         /* ... relax constraints and disable rssi events */
 810                         iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 811                                             smps_mode);
 812                         iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
 813                                                     false);
 814                         iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 815                 }
 816                 return;
 817         }
 818
 819         bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
 820         if (bt_activity_grading >= BT_HIGH_TRAFFIC)
 821                 smps_mode = IEEE80211_SMPS_STATIC;
 822         else if (bt_activity_grading >= BT_LOW_TRAFFIC)
 823                 smps_mode = vif->type == NL80211_IFTYPE_AP ?
 824                                 IEEE80211_SMPS_OFF :
 825                                 IEEE80211_SMPS_DYNAMIC;
 826
 827         /* relax SMPS contraints for next association */
 828         if (!vif->bss_conf.assoc)
 829                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 830
 831         IWL_DEBUG_COEX(data->mvm,
 832                        "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n",
 833                        mvmvif->id, data->notif->bt_status, bt_activity_grading,
 834                        smps_mode);
 835
 836         if (vif->type == NL80211_IFTYPE_STATION)
 837                 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 838                                     smps_mode);
 839
 840         /* low latency is always primary */
 841         if (iwl_mvm_vif_low_latency(mvmvif)) {
 842                 data->primary_ll = true;
 843
 844                 data->secondary = data->primary;
 845                 data->primary = chanctx_conf;
 846         }
 847
 848         if (vif->type == NL80211_IFTYPE_AP) {
 849                 if (!mvmvif->ap_ibss_active)
 850                         return;
 851
 852                 if (chanctx_conf == data->primary)
 853                         return;
 854
 855                 if (!data->primary_ll) {
 856                         /*
 857                          * downgrade the current primary no matter what its
 858                          * type is.
 859                          */
 860                         data->secondary = data->primary;
 861                         data->primary = chanctx_conf;
 862                 } else {
 863                         /* there is low latency vif - we will be secondary */
 864                         data->secondary = chanctx_conf;
 865                 }
 866                 return;
 867         }
 868
 869         /*
 870          * STA / P2P Client, try to be primary if first vif. If we are in low
 871          * latency mode, we are already in primary and just don't do much
 872          */
 873         if (!data->primary || data->primary == chanctx_conf)
 874                 data->primary = chanctx_conf;
 875         else if (!data->secondary)
 876                 /* if secondary is not NULL, it might be a GO */
 877                 data->secondary = chanctx_conf;
 878
 879         /*
 880          * don't reduce the Tx power if one of these is true:
 881          *  we are in LOOSE
 882          *  single share antenna product
 883          *  BT is active
 884          *  we are associated
 885          */
 886         if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
 887             mvm->cfg->bt_shared_single_ant || !vif->bss_conf.assoc ||
 888             !data->notif->bt_status) {
 889                 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false);
 890                 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 891                 return;
 892         }
 893
 894         /* try to get the avg rssi from fw */
 895         ave_rssi = mvmvif->bf_data.ave_beacon_signal;
 896
 897         /* if the RSSI isn't valid, fake it is very low */
 898         if (!ave_rssi)
 899                 ave_rssi = -100;
 900         if (ave_rssi > -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH) {
 901                 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true))
 902                         IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 903         } else if (ave_rssi < -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH) {
 904                 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
 905                         IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 906         }
 907
 908         /* Begin to monitor the RSSI: it may influence the reduced Tx power */
 909         iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
 910 }
 911
 912 static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
 913 {
 914         struct iwl_bt_iterator_data data = {
 915                 .mvm = mvm,
 916                 .notif = &mvm->last_bt_notif_old,
 917         };
 918         struct iwl_bt_coex_ci_cmd_old cmd = {};
 919         u8 ci_bw_idx;
 920
 921         /* Ignore updates if we are in force mode */
 922         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
 923                 return;
 924
 925         rcu_read_lock();
 926         ieee80211_iterate_active_interfaces_atomic(
 927                                         mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 928                                         iwl_mvm_bt_notif_iterator, &data);
 929
 930         if (data.primary) {
 931                 struct ieee80211_chanctx_conf *chan = data.primary;
 932
 933                 if (WARN_ON(!chan->def.chan)) {
 934                         rcu_read_unlock();
 935                         return;
 936                 }
 937
 938                 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
 939                         ci_bw_idx = 0;
 940                         cmd.co_run_bw_primary = 0;
 941                 } else {
 942                         cmd.co_run_bw_primary = 1;
 943                         if (chan->def.center_freq1 >
 944                             chan->def.chan->center_freq)
 945                                 ci_bw_idx = 2;
 946                         else
 947                                 ci_bw_idx = 1;
 948                 }
 949
 950                 cmd.bt_primary_ci =
 951                         iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
 952                 cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv);
 953         }
 954
 955         if (data.secondary) {
 956                 struct ieee80211_chanctx_conf *chan = data.secondary;
 957
 958                 if (WARN_ON(!data.secondary->def.chan)) {
 959                         rcu_read_unlock();
 960                         return;
 961                 }
 962
 963                 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
 964                         ci_bw_idx = 0;
 965                         cmd.co_run_bw_secondary = 0;
 966                 } else {
 967                         cmd.co_run_bw_secondary = 1;
 968                         if (chan->def.center_freq1 >
 969                             chan->def.chan->center_freq)
 970                                 ci_bw_idx = 2;
 971                         else
 972                                 ci_bw_idx = 1;
 973                 }
 974
 975                 cmd.bt_secondary_ci =
 976                         iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
 977                 cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv);
 978         }
 979
 980         rcu_read_unlock();
 981
 982         /* Don't spam the fw with the same command over and over */
 983         if (memcmp(&cmd, &mvm->last_bt_ci_cmd_old, sizeof(cmd))) {
 984                 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0,
 985                                          sizeof(cmd), &cmd))
 986                         IWL_ERR(mvm, "Failed to send BT_CI cmd\n");
 987                 memcpy(&mvm->last_bt_ci_cmd_old, &cmd, sizeof(cmd));
 988         }
 989
 990         if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm))
 991                 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
 992 }
 993
 994 int iwl_mvm_rx_bt_coex_notif_old(struct iwl_mvm *mvm,
 995                                  struct iwl_rx_cmd_buffer *rxb,
 996                                  struct iwl_device_cmd *dev_cmd)
 997 {
 998         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 999         struct iwl_bt_coex_profile_notif_old *notif = (void *)pkt->data;
1000
1001         IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
1002         IWL_DEBUG_COEX(mvm, "\tBT status: %s\n",
1003                        notif->bt_status ? "ON" : "OFF");
1004         IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn);
1005         IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
1006         IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
1007                        le32_to_cpu(notif->primary_ch_lut));
1008         IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
1009                        le32_to_cpu(notif->secondary_ch_lut));
1010         IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
1011                        le32_to_cpu(notif->bt_activity_grading));
1012         IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n",
1013                        notif->bt_agg_traffic_load);
1014
1015         /* remember this notification for future use: rssi fluctuations */
1016         memcpy(&mvm->last_bt_notif_old, notif, sizeof(mvm->last_bt_notif_old));
1017
1018         iwl_mvm_bt_coex_notif_handle(mvm);
1019
1020         /*
1021          * This is an async handler for a notification, returning anything other
1022          * than 0 doesn't make sense even if HCMD failed.
1023          */
1024         return 0;
1025 }
1026
1027 static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
1028                                      struct ieee80211_vif *vif)
1029 {
1030         struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1031         struct iwl_bt_iterator_data *data = _data;
1032         struct iwl_mvm *mvm = data->mvm;
1033
1034         struct ieee80211_sta *sta;
1035         struct iwl_mvm_sta *mvmsta;
1036
1037         struct ieee80211_chanctx_conf *chanctx_conf;
1038
1039         rcu_read_lock();
1040         chanctx_conf = rcu_dereference(vif->chanctx_conf);
1041         /* If channel context is invalid or not on 2.4GHz - don't count it */
1042         if (!chanctx_conf ||
1043             chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
1044                 rcu_read_unlock();
1045                 return;
1046         }
1047         rcu_read_unlock();
1048
1049         if (vif->type != NL80211_IFTYPE_STATION ||
1050             mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1051                 return;
1052
1053         sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1054                                         lockdep_is_held(&mvm->mutex));
1055
1056         /* This can happen if the station has been removed right now */
1057         if (IS_ERR_OR_NULL(sta))
1058                 return;
1059
1060         mvmsta = iwl_mvm_sta_from_mac80211(sta);
1061 }
1062
1063 void iwl_mvm_bt_rssi_event_old(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1064                                enum ieee80211_rssi_event rssi_event)
1065 {
1066         struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1067         struct iwl_bt_iterator_data data = {
1068                 .mvm = mvm,
1069         };
1070         int ret;
1071
1072         lockdep_assert_held(&mvm->mutex);
1073
1074         /* Ignore updates if we are in force mode */
1075         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1076                 return;
1077
1078         /*
1079          * Rssi update while not associated - can happen since the statistics
1080          * are handled asynchronously
1081          */
1082         if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1083                 return;
1084
1085         /* No BT - reports should be disabled */
1086         if (!mvm->last_bt_notif_old.bt_status)
1087                 return;
1088
1089         IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
1090                        rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
1091
1092         /*
1093          * Check if rssi is good enough for reduced Tx power, but not in loose
1094          * scheme.
1095          */
1096         if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
1097             iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
1098                 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
1099                                                   false);
1100         else
1101                 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true);
1102
1103         if (ret)
1104                 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
1105
1106         ieee80211_iterate_active_interfaces_atomic(
1107                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1108                 iwl_mvm_bt_rssi_iterator, &data);
1109
1110         if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm))
1111                 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
1112 }
1113
1114 #define LINK_QUAL_AGG_TIME_LIMIT_DEF    (4000)
1115 #define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
1116
1117 u16 iwl_mvm_coex_agg_time_limit_old(struct iwl_mvm *mvm,
1118                                     struct ieee80211_sta *sta)
1119 {
1120         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1121         enum iwl_bt_coex_lut_type lut_type;
1122
1123         if (le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading) <
1124             BT_HIGH_TRAFFIC)
1125                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1126
1127         if (mvm->last_bt_notif_old.ttc_enabled)
1128                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1129
1130         lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1131
1132         if (lut_type == BT_COEX_LOOSE_LUT || lut_type == BT_COEX_INVALID_LUT)
1133                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1134
1135         /* tight coex, high bt traffic, reduce AGG time limit */
1136         return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
1137 }
1138
1139 bool iwl_mvm_bt_coex_is_mimo_allowed_old(struct iwl_mvm *mvm,
1140                                          struct ieee80211_sta *sta)
1141 {
1142         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1143         enum iwl_bt_coex_lut_type lut_type;
1144
1145         if (mvm->last_bt_notif_old.ttc_enabled)
1146                 return true;
1147
1148         if (le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading) <
1149             BT_HIGH_TRAFFIC)
1150                 return true;
1151
1152         /*
1153          * In Tight / TxTxDis, BT can't Rx while we Tx, so use both antennas
1154          * since BT is already killed.
1155          * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while
1156          * we Tx.
1157          * When we are in 5GHz, we'll get BT_COEX_INVALID_LUT allowing MIMO.
1158          */
1159         lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1160         return lut_type != BT_COEX_LOOSE_LUT;
1161 }
1162
1163 bool iwl_mvm_bt_coex_is_shared_ant_avail_old(struct iwl_mvm *mvm)
1164 {
1165         u32 ag = le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading);
1166         return ag == BT_OFF;
1167 }
1168
1169 bool iwl_mvm_bt_coex_is_tpc_allowed_old(struct iwl_mvm *mvm,
1170                                         enum ieee80211_band band)
1171 {
1172         u32 bt_activity =
1173                 le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading);
1174
1175         if (band != IEEE80211_BAND_2GHZ)
1176                 return false;
1177
1178         return bt_activity >= BT_LOW_TRAFFIC;
1179 }
1180
1181 void iwl_mvm_bt_coex_vif_change_old(struct iwl_mvm *mvm)
1182 {
1183         iwl_mvm_bt_coex_notif_handle(mvm);
1184 }
1185
1186 int iwl_mvm_rx_ant_coupling_notif_old(struct iwl_mvm *mvm,
1187                                       struct iwl_rx_cmd_buffer *rxb,
1188                                       struct iwl_device_cmd *dev_cmd)
1189 {
1190         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1191         u32 ant_isolation = le32_to_cpup((void *)pkt->data);
1192         u8 __maybe_unused lower_bound, upper_bound;
1193         int ret;
1194         u8 lut;
1195
1196         struct iwl_bt_coex_cmd_old *bt_cmd;
1197         struct iwl_host_cmd cmd = {
1198                 .id = BT_CONFIG,
1199                 .len = { sizeof(*bt_cmd), },
1200                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
1201         };
1202
1203         if (!IWL_MVM_BT_COEX_CORUNNING)
1204                 return 0;
1205
1206         lockdep_assert_held(&mvm->mutex);
1207
1208         /* Ignore updates if we are in force mode */
1209         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1210                 return 0;
1211
1212         if (ant_isolation ==  mvm->last_ant_isol)
1213                 return 0;
1214
1215         for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++)
1216                 if (ant_isolation < antenna_coupling_ranges[lut + 1].range)
1217                         break;
1218
1219         lower_bound = antenna_coupling_ranges[lut].range;
1220
1221         if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1)
1222                 upper_bound = antenna_coupling_ranges[lut + 1].range;
1223         else
1224                 upper_bound = antenna_coupling_ranges[lut].range;
1225
1226         IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n",
1227                        ant_isolation, lower_bound, upper_bound, lut);
1228
1229         mvm->last_ant_isol = ant_isolation;
1230
1231         if (mvm->last_corun_lut == lut)
1232                 return 0;
1233
1234         mvm->last_corun_lut = lut;
1235
1236         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
1237         if (!bt_cmd)
1238                 return 0;
1239         cmd.data[0] = bt_cmd;
1240
1241         bt_cmd->flags = cpu_to_le32(BT_COEX_NW_OLD);
1242         bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
1243                                              BT_VALID_CORUN_LUT_20 |
1244                                              BT_VALID_CORUN_LUT_40);
1245
1246         /* For the moment, use the same LUT for 20GHz and 40GHz */
1247         memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[lut].lut20,
1248                sizeof(bt_cmd->bt4_corun_lut20));
1249
1250         memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[lut].lut20,
1251                sizeof(bt_cmd->bt4_corun_lut40));
1252
1253         ret = iwl_mvm_send_cmd(mvm, &cmd);
1254
1255         kfree(bt_cmd);
1256         return ret;
1257 }