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  * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of version 2 of the GNU General Public License as
  13  * published by the Free Software Foundation.
  14  *
  15  * This program is distributed in the hope that it will be useful, but
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  29  *  Intel Linux Wireless <ilw@linux.intel.com>
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  31  *
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  33  *
  34  * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved.
  35  * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
  36  * All rights reserved.
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  39  * modification, are permitted provided that the following conditions
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  43  *    notice, this list of conditions and the following disclaimer.
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  45  *    notice, this list of conditions and the following disclaimer in
  46  *    the documentation and/or other materials provided with the
  47  *    distribution.
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  49  *    contributors may be used to endorse or promote products derived
  50  *    from this software without specific prior written permission.
  51  *
  52  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  53  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  54  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  55  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  56  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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  60  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  61  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  62  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  63  *
  64  *****************************************************************************/
  65
  66 #include <linux/ieee80211.h>
  67 #include <linux/etherdevice.h>
  68 #include <net/mac80211.h>
  69
  70 #include "fw-api-coex.h"
  71 #include "iwl-modparams.h"
  72 #include "mvm.h"
  73 #include "iwl-debug.h"
  74
  75 #define EVENT_PRIO_ANT(_evt, _prio, _shrd_ant)                  \
  76         [(_evt)] = (((_prio) << BT_COEX_PRIO_TBL_PRIO_POS) |    \
  77                    ((_shrd_ant) << BT_COEX_PRIO_TBL_SHRD_ANT_POS))
  78
  79 static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
  80         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB1,
  81                        BT_COEX_PRIO_TBL_PRIO_BYPASS, 0),
  82         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB2,
  83                        BT_COEX_PRIO_TBL_PRIO_BYPASS, 1),
  84         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW1,
  85                        BT_COEX_PRIO_TBL_PRIO_LOW, 0),
  86         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW2,
  87                        BT_COEX_PRIO_TBL_PRIO_LOW, 1),
  88         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH1,
  89                        BT_COEX_PRIO_TBL_PRIO_HIGH, 0),
  90         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH2,
  91                        BT_COEX_PRIO_TBL_PRIO_HIGH, 1),
  92         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_DTIM,
  93                        BT_COEX_PRIO_TBL_DISABLED, 0),
  94         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN52,
  95                        BT_COEX_PRIO_TBL_PRIO_COEX_OFF, 0),
  96         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN24,
  97                        BT_COEX_PRIO_TBL_PRIO_COEX_ON, 0),
  98         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_IDLE,
  99                        BT_COEX_PRIO_TBL_PRIO_COEX_IDLE, 0),
 100         0, 0, 0, 0, 0, 0,
 101 };
 102
 103 #undef EVENT_PRIO_ANT
 104
 105 static int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm)
 106 {
 107         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
 108                 return 0;
 109
 110         return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, 0,
 111                                     sizeof(struct iwl_bt_coex_prio_tbl_cmd),
 112                                     &iwl_bt_prio_tbl);
 113 }
 114
 115 static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = {
 116         cpu_to_le32(0xf0f0f0f0), /* 50% */
 117         cpu_to_le32(0xc0c0c0c0), /* 25% */
 118         cpu_to_le32(0xfcfcfcfc), /* 75% */
 119         cpu_to_le32(0xfefefefe), /* 87.5% */
 120 };
 121
 122 static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
 123         {
 124                 cpu_to_le32(0x40000000),
 125                 cpu_to_le32(0x00000000),
 126                 cpu_to_le32(0x44000000),
 127                 cpu_to_le32(0x00000000),
 128                 cpu_to_le32(0x40000000),
 129                 cpu_to_le32(0x00000000),
 130                 cpu_to_le32(0x44000000),
 131                 cpu_to_le32(0x00000000),
 132                 cpu_to_le32(0xc0004000),
 133                 cpu_to_le32(0xf0005000),
 134                 cpu_to_le32(0xc0004000),
 135                 cpu_to_le32(0xf0005000),
 136         },
 137         {
 138                 cpu_to_le32(0x40000000),
 139                 cpu_to_le32(0x00000000),
 140                 cpu_to_le32(0x44000000),
 141                 cpu_to_le32(0x00000000),
 142                 cpu_to_le32(0x40000000),
 143                 cpu_to_le32(0x00000000),
 144                 cpu_to_le32(0x44000000),
 145                 cpu_to_le32(0x00000000),
 146                 cpu_to_le32(0xc0004000),
 147                 cpu_to_le32(0xf0005000),
 148                 cpu_to_le32(0xc0004000),
 149                 cpu_to_le32(0xf0005000),
 150         },
 151         {
 152                 cpu_to_le32(0x40000000),
 153                 cpu_to_le32(0x00000000),
 154                 cpu_to_le32(0x44000000),
 155                 cpu_to_le32(0x00000000),
 156                 cpu_to_le32(0x40000000),
 157                 cpu_to_le32(0x00000000),
 158                 cpu_to_le32(0x44000000),
 159                 cpu_to_le32(0x00000000),
 160                 cpu_to_le32(0xc0004000),
 161                 cpu_to_le32(0xf0005000),
 162                 cpu_to_le32(0xc0004000),
 163                 cpu_to_le32(0xf0005000),
 164         },
 165 };
 166
 167 static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
 168         {
 169                 /* Tight */
 170                 cpu_to_le32(0xaaaaaaaa),
 171                 cpu_to_le32(0xaaaaaaaa),
 172                 cpu_to_le32(0xaeaaaaaa),
 173                 cpu_to_le32(0xaaaaaaaa),
 174                 cpu_to_le32(0xcc00ff28),
 175                 cpu_to_le32(0x0000aaaa),
 176                 cpu_to_le32(0xcc00aaaa),
 177                 cpu_to_le32(0x0000aaaa),
 178                 cpu_to_le32(0xc0004000),
 179                 cpu_to_le32(0x00004000),
 180                 cpu_to_le32(0xf0005000),
 181                 cpu_to_le32(0xf0005000),
 182         },
 183         {
 184                 /* Loose */
 185                 cpu_to_le32(0xaaaaaaaa),
 186                 cpu_to_le32(0xaaaaaaaa),
 187                 cpu_to_le32(0xaaaaaaaa),
 188                 cpu_to_le32(0xaaaaaaaa),
 189                 cpu_to_le32(0xcc00ff28),
 190                 cpu_to_le32(0x0000aaaa),
 191                 cpu_to_le32(0xcc00aaaa),
 192                 cpu_to_le32(0x0000aaaa),
 193                 cpu_to_le32(0x00000000),
 194                 cpu_to_le32(0x00000000),
 195                 cpu_to_le32(0xf0005000),
 196                 cpu_to_le32(0xf0005000),
 197         },
 198         {
 199                 /* Tx Tx disabled */
 200                 cpu_to_le32(0xaaaaaaaa),
 201                 cpu_to_le32(0xaaaaaaaa),
 202                 cpu_to_le32(0xeeaaaaaa),
 203                 cpu_to_le32(0xaaaaaaaa),
 204                 cpu_to_le32(0xcc00ff28),
 205                 cpu_to_le32(0x0000aaaa),
 206                 cpu_to_le32(0xcc00aaaa),
 207                 cpu_to_le32(0x0000aaaa),
 208                 cpu_to_le32(0xc0004000),
 209                 cpu_to_le32(0xc0004000),
 210                 cpu_to_le32(0xf0005000),
 211                 cpu_to_le32(0xf0005000),
 212         },
 213 };
 214
 215 /* 20MHz / 40MHz below / 40Mhz above*/
 216 static const __le64 iwl_ci_mask[][3] = {
 217         /* dummy entry for channel 0 */
 218         {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
 219         {
 220                 cpu_to_le64(0x0000001FFFULL),
 221                 cpu_to_le64(0x0ULL),
 222                 cpu_to_le64(0x00007FFFFFULL),
 223         },
 224         {
 225                 cpu_to_le64(0x000000FFFFULL),
 226                 cpu_to_le64(0x0ULL),
 227                 cpu_to_le64(0x0003FFFFFFULL),
 228         },
 229         {
 230                 cpu_to_le64(0x000003FFFCULL),
 231                 cpu_to_le64(0x0ULL),
 232                 cpu_to_le64(0x000FFFFFFCULL),
 233         },
 234         {
 235                 cpu_to_le64(0x00001FFFE0ULL),
 236                 cpu_to_le64(0x0ULL),
 237                 cpu_to_le64(0x007FFFFFE0ULL),
 238         },
 239         {
 240                 cpu_to_le64(0x00007FFF80ULL),
 241                 cpu_to_le64(0x00007FFFFFULL),
 242                 cpu_to_le64(0x01FFFFFF80ULL),
 243         },
 244         {
 245                 cpu_to_le64(0x0003FFFC00ULL),
 246                 cpu_to_le64(0x0003FFFFFFULL),
 247                 cpu_to_le64(0x0FFFFFFC00ULL),
 248         },
 249         {
 250                 cpu_to_le64(0x000FFFF000ULL),
 251                 cpu_to_le64(0x000FFFFFFCULL),
 252                 cpu_to_le64(0x3FFFFFF000ULL),
 253         },
 254         {
 255                 cpu_to_le64(0x007FFF8000ULL),
 256                 cpu_to_le64(0x007FFFFFE0ULL),
 257                 cpu_to_le64(0xFFFFFF8000ULL),
 258         },
 259         {
 260                 cpu_to_le64(0x01FFFE0000ULL),
 261                 cpu_to_le64(0x01FFFFFF80ULL),
 262                 cpu_to_le64(0xFFFFFE0000ULL),
 263         },
 264         {
 265                 cpu_to_le64(0x0FFFF00000ULL),
 266                 cpu_to_le64(0x0FFFFFFC00ULL),
 267                 cpu_to_le64(0x0ULL),
 268         },
 269         {
 270                 cpu_to_le64(0x3FFFC00000ULL),
 271                 cpu_to_le64(0x3FFFFFF000ULL),
 272                 cpu_to_le64(0x0)
 273         },
 274         {
 275                 cpu_to_le64(0xFFFE000000ULL),
 276                 cpu_to_le64(0xFFFFFF8000ULL),
 277                 cpu_to_le64(0x0)
 278         },
 279         {
 280                 cpu_to_le64(0xFFF8000000ULL),
 281                 cpu_to_le64(0xFFFFFE0000ULL),
 282                 cpu_to_le64(0x0)
 283         },
 284         {
 285                 cpu_to_le64(0xFFC0000000ULL),
 286                 cpu_to_le64(0x0ULL),
 287                 cpu_to_le64(0x0ULL)
 288         },
 289 };
 290
 291 struct corunning_block_luts {
 292         u8 range;
 293         __le32 lut20[BT_COEX_CORUN_LUT_SIZE];
 294 };
 295
 296 /*
 297  * Ranges for the antenna coupling calibration / co-running block LUT:
 298  *              LUT0: [ 0, 12[
 299  *              LUT1: [12, 20[
 300  *              LUT2: [20, 21[
 301  *              LUT3: [21, 23[
 302  *              LUT4: [23, 27[
 303  *              LUT5: [27, 30[
 304  *              LUT6: [30, 32[
 305  *              LUT7: [32, 33[
 306  *              LUT8: [33, - [
 307  */
 308 static const struct corunning_block_luts antenna_coupling_ranges[] = {
 309         {
 310                 .range = 0,
 311                 .lut20 = {
 312                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 313                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 314                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 315                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 316                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 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                 },
 329         },
 330         {
 331                 .range = 12,
 332                 .lut20 = {
 333                         cpu_to_le32(0x00000001),  cpu_to_le32(0x00000000),
 334                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 335                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 336                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 337                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 338                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 339                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 340                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 341                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 342                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 343                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 344                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 345                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 346                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 347                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 348                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 349                 },
 350         },
 351         {
 352                 .range = 20,
 353                 .lut20 = {
 354                         cpu_to_le32(0x00000002),  cpu_to_le32(0x00000000),
 355                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 356                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 357                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 358                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 359                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 360                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 361                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 362                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 363                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 364                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 365                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 366                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 367                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 368                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 369                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 370                 },
 371         },
 372         {
 373                 .range = 21,
 374                 .lut20 = {
 375                         cpu_to_le32(0x00000003),  cpu_to_le32(0x00000000),
 376                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 377                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 378                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 379                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 380                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 381                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 382                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 383                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 384                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 385                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 386                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 387                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 388                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 389                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 390                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 391                 },
 392         },
 393         {
 394                 .range = 23,
 395                 .lut20 = {
 396                         cpu_to_le32(0x00000004),  cpu_to_le32(0x00000000),
 397                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 398                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 399                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 400                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 401                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 402                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 403                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 404                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 405                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 406                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 407                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 408                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 409                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 410                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 411                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 412                 },
 413         },
 414         {
 415                 .range = 27,
 416                 .lut20 = {
 417                         cpu_to_le32(0x00000005),  cpu_to_le32(0x00000000),
 418                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 419                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 420                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 421                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 422                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 423                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 424                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 425                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 426                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 427                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 428                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 429                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 430                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 431                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 432                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 433                 },
 434         },
 435         {
 436                 .range = 30,
 437                 .lut20 = {
 438                         cpu_to_le32(0x00000006),  cpu_to_le32(0x00000000),
 439                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 440                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 441                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 442                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 443                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 444                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 445                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 446                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 447                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 448                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 449                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 450                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 451                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 452                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 453                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 454                 },
 455         },
 456         {
 457                 .range = 32,
 458                 .lut20 = {
 459                         cpu_to_le32(0x00000007),  cpu_to_le32(0x00000000),
 460                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 461                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 462                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 463                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 464                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 465                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 466                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 467                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 468                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 469                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 470                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 471                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 472                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 473                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 474                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 475                 },
 476         },
 477         {
 478                 .range = 33,
 479                 .lut20 = {
 480                         cpu_to_le32(0x00000008),  cpu_to_le32(0x00000000),
 481                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 482                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 483                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 484                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 485                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 486                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 487                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 488                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 489                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 490                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 491                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 492                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 493                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 494                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 495                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 496                 },
 497         },
 498 };
 499
 500 static enum iwl_bt_coex_lut_type
 501 iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
 502 {
 503         struct ieee80211_chanctx_conf *chanctx_conf;
 504         enum iwl_bt_coex_lut_type ret;
 505         u16 phy_ctx_id;
 506
 507         /*
 508          * Checking that we hold mvm->mutex is a good idea, but the rate
 509          * control can't acquire the mutex since it runs in Tx path.
 510          * So this is racy in that case, but in the worst case, the AMPDU
 511          * size limit will be wrong for a short time which is not a big
 512          * issue.
 513          */
 514
 515         rcu_read_lock();
 516
 517         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 518
 519         if (!chanctx_conf ||
 520             chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
 521                 rcu_read_unlock();
 522                 return BT_COEX_INVALID_LUT;
 523         }
 524
 525         ret = BT_COEX_TX_DIS_LUT;
 526
 527         if (mvm->cfg->bt_shared_single_ant) {
 528                 rcu_read_unlock();
 529                 return ret;
 530         }
 531
 532         phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
 533
 534         if (mvm->last_bt_ci_cmd_old.primary_ch_phy_id == phy_ctx_id)
 535                 ret = le32_to_cpu(mvm->last_bt_notif_old.primary_ch_lut);
 536         else if (mvm->last_bt_ci_cmd_old.secondary_ch_phy_id == phy_ctx_id)
 537                 ret = le32_to_cpu(mvm->last_bt_notif_old.secondary_ch_lut);
 538         /* else - default = TX TX disallowed */
 539
 540         rcu_read_unlock();
 541
 542         return ret;
 543 }
 544
 545 int iwl_send_bt_init_conf_old(struct iwl_mvm *mvm)
 546 {
 547         struct iwl_bt_coex_cmd_old *bt_cmd;
 548         struct iwl_host_cmd cmd = {
 549                 .id = BT_CONFIG,
 550                 .len = { sizeof(*bt_cmd), },
 551                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 552         };
 553         int ret;
 554         u32 flags;
 555
 556         ret = iwl_send_bt_prio_tbl(mvm);
 557         if (ret)
 558                 return ret;
 559
 560         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
 561         if (!bt_cmd)
 562                 return -ENOMEM;
 563         cmd.data[0] = bt_cmd;
 564
 565         lockdep_assert_held(&mvm->mutex);
 566
 567         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) {
 568                 switch (mvm->bt_force_ant_mode) {
 569                 case BT_FORCE_ANT_AUTO:
 570                         flags = BT_COEX_AUTO_OLD;
 571                         break;
 572                 case BT_FORCE_ANT_BT:
 573                         flags = BT_COEX_BT_OLD;
 574                         break;
 575                 case BT_FORCE_ANT_WIFI:
 576                         flags = BT_COEX_WIFI_OLD;
 577                         break;
 578                 default:
 579                         WARN_ON(1);
 580                         flags = 0;
 581                 }
 582
 583                 bt_cmd->flags = cpu_to_le32(flags);
 584                 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE);
 585                 goto send_cmd;
 586         }
 587
 588         bt_cmd->max_kill = 5;
 589         bt_cmd->bt4_antenna_isolation_thr =
 590                 IWL_MVM_BT_COEX_ANTENNA_COUPLING_THRS;
 591         bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling;
 592         bt_cmd->bt4_tx_tx_delta_freq_thr = 15;
 593         bt_cmd->bt4_tx_rx_max_freq0 = 15;
 594         bt_cmd->override_primary_lut = BT_COEX_INVALID_LUT;
 595         bt_cmd->override_secondary_lut = BT_COEX_INVALID_LUT;
 596
 597         flags = iwlwifi_mod_params.bt_coex_active ?
 598                         BT_COEX_NW_OLD : BT_COEX_DISABLE_OLD;
 599         bt_cmd->flags = cpu_to_le32(flags);
 600
 601         bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE |
 602                                             BT_VALID_BT_PRIO_BOOST |
 603                                             BT_VALID_MAX_KILL |
 604                                             BT_VALID_3W_TMRS |
 605                                             BT_VALID_KILL_ACK |
 606                                             BT_VALID_KILL_CTS |
 607                                             BT_VALID_REDUCED_TX_POWER |
 608                                             BT_VALID_LUT |
 609                                             BT_VALID_WIFI_RX_SW_PRIO_BOOST |
 610                                             BT_VALID_WIFI_TX_SW_PRIO_BOOST |
 611                                             BT_VALID_ANT_ISOLATION |
 612                                             BT_VALID_ANT_ISOLATION_THRS |
 613                                             BT_VALID_TXTX_DELTA_FREQ_THRS |
 614                                             BT_VALID_TXRX_MAX_FREQ_0 |
 615                                             BT_VALID_SYNC_TO_SCO |
 616                                             BT_VALID_TTC |
 617                                             BT_VALID_RRC);
 618
 619         if (IWL_MVM_BT_COEX_SYNC2SCO)
 620                 bt_cmd->flags |= cpu_to_le32(BT_COEX_SYNC2SCO);
 621
 622         if (IWL_MVM_BT_COEX_CORUNNING) {
 623                 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_CORUN_LUT_20 |
 624                                                      BT_VALID_CORUN_LUT_40);
 625                 bt_cmd->flags |= cpu_to_le32(BT_COEX_CORUNNING);
 626         }
 627
 628         if (IWL_MVM_BT_COEX_MPLUT) {
 629                 bt_cmd->flags |= cpu_to_le32(BT_COEX_MPLUT);
 630                 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_MULTI_PRIO_LUT);
 631         }
 632
 633         if (IWL_MVM_BT_COEX_TTC)
 634                 bt_cmd->flags |= cpu_to_le32(BT_COEX_TTC);
 635
 636         if (IWL_MVM_BT_COEX_RRC)
 637                 bt_cmd->flags |= cpu_to_le32(BT_COEX_RRC);
 638
 639         if (mvm->cfg->bt_shared_single_ant)
 640                 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant,
 641                        sizeof(iwl_single_shared_ant));
 642         else
 643                 memcpy(&bt_cmd->decision_lut, iwl_combined_lookup,
 644                        sizeof(iwl_combined_lookup));
 645
 646         /* Take first Co-running block LUT to get started */
 647         memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[0].lut20,
 648                sizeof(bt_cmd->bt4_corun_lut20));
 649         memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[0].lut20,
 650                sizeof(bt_cmd->bt4_corun_lut40));
 651
 652         memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost,
 653                sizeof(iwl_bt_prio_boost));
 654         bt_cmd->bt4_multiprio_lut[0] = cpu_to_le32(IWL_MVM_BT_COEX_MPLUT_REG0);
 655         bt_cmd->bt4_multiprio_lut[1] = cpu_to_le32(IWL_MVM_BT_COEX_MPLUT_REG1);
 656
 657 send_cmd:
 658         memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
 659         memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
 660
 661         ret = iwl_mvm_send_cmd(mvm, &cmd);
 662
 663         kfree(bt_cmd);
 664         return ret;
 665 }
 666
 667 static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm)
 668 {
 669         struct iwl_bt_coex_profile_notif_old *notif = &mvm->last_bt_notif_old;
 670         u32 primary_lut = le32_to_cpu(notif->primary_ch_lut);
 671         u32 ag = le32_to_cpu(notif->bt_activity_grading);
 672         struct iwl_bt_coex_cmd_old *bt_cmd;
 673         u8 ack_kill_msk, cts_kill_msk;
 674         struct iwl_host_cmd cmd = {
 675                 .id = BT_CONFIG,
 676                 .data[0] = &bt_cmd,
 677                 .len = { sizeof(*bt_cmd), },
 678                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 679         };
 680         int ret = 0;
 681
 682         lockdep_assert_held(&mvm->mutex);
 683
 684         ack_kill_msk = iwl_bt_ack_kill_msk[ag][primary_lut];
 685         cts_kill_msk = iwl_bt_cts_kill_msk[ag][primary_lut];
 686
 687         if (mvm->bt_ack_kill_msk[0] == ack_kill_msk &&
 688             mvm->bt_cts_kill_msk[0] == cts_kill_msk)
 689                 return 0;
 690
 691         mvm->bt_ack_kill_msk[0] = ack_kill_msk;
 692         mvm->bt_cts_kill_msk[0] = cts_kill_msk;
 693
 694         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
 695         if (!bt_cmd)
 696                 return -ENOMEM;
 697         cmd.data[0] = bt_cmd;
 698         bt_cmd->flags = cpu_to_le32(BT_COEX_NW_OLD);
 699
 700         bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ctl_kill_msk[ack_kill_msk]);
 701         bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_ctl_kill_msk[cts_kill_msk]);
 702         bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
 703                                              BT_VALID_KILL_ACK |
 704                                              BT_VALID_KILL_CTS);
 705
 706         ret = iwl_mvm_send_cmd(mvm, &cmd);
 707
 708         kfree(bt_cmd);
 709         return ret;
 710 }
 711
 712 static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
 713                                        bool enable)
 714 {
 715         struct iwl_bt_coex_cmd_old *bt_cmd;
 716         /* Send ASYNC since this can be sent from an atomic context */
 717         struct iwl_host_cmd cmd = {
 718                 .id = BT_CONFIG,
 719                 .len = { sizeof(*bt_cmd), },
 720                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 721                 .flags = CMD_ASYNC,
 722         };
 723         struct iwl_mvm_sta *mvmsta;
 724         int ret;
 725
 726         mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
 727         if (!mvmsta)
 728                 return 0;
 729
 730         /* nothing to do */
 731         if (mvmsta->bt_reduced_txpower == enable)
 732                 return 0;
 733
 734         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC);
 735         if (!bt_cmd)
 736                 return -ENOMEM;
 737         cmd.data[0] = bt_cmd;
 738         bt_cmd->flags = cpu_to_le32(BT_COEX_NW_OLD);
 739
 740         bt_cmd->valid_bit_msk =
 741                 cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER);
 742         bt_cmd->bt_reduced_tx_power = sta_id;
 743
 744         if (enable)
 745                 bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT;
 746
 747         IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
 748                        enable ? "en" : "dis", sta_id);
 749
 750         mvmsta->bt_reduced_txpower = enable;
 751
 752         ret = iwl_mvm_send_cmd(mvm, &cmd);
 753
 754         kfree(bt_cmd);
 755         return ret;
 756 }
 757
 758 struct iwl_bt_iterator_data {
 759         struct iwl_bt_coex_profile_notif_old *notif;
 760         struct iwl_mvm *mvm;
 761         struct ieee80211_chanctx_conf *primary;
 762         struct ieee80211_chanctx_conf *secondary;
 763         bool primary_ll;
 764 };
 765
 766 static inline
 767 void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
 768                                        struct ieee80211_vif *vif,
 769                                        bool enable, int rssi)
 770 {
 771         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 772
 773         mvmvif->bf_data.last_bt_coex_event = rssi;
 774         mvmvif->bf_data.bt_coex_max_thold =
 775                 enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0;
 776         mvmvif->bf_data.bt_coex_min_thold =
 777                 enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0;
 778 }
 779
 780 /* must be called under rcu_read_lock */
 781 static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 782                                       struct ieee80211_vif *vif)
 783 {
 784         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 785         struct iwl_bt_iterator_data *data = _data;
 786         struct iwl_mvm *mvm = data->mvm;
 787         struct ieee80211_chanctx_conf *chanctx_conf;
 788         enum ieee80211_smps_mode smps_mode;
 789         u32 bt_activity_grading;
 790         int ave_rssi;
 791
 792         lockdep_assert_held(&mvm->mutex);
 793
 794         switch (vif->type) {
 795         case NL80211_IFTYPE_STATION:
 796                 /* default smps_mode for BSS / P2P client is AUTOMATIC */
 797                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 798                 break;
 799         case NL80211_IFTYPE_AP:
 800                 if (!mvmvif->ap_ibss_active)
 801                         return;
 802                 break;
 803         default:
 804                 return;
 805         }
 806
 807         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 808
 809         /* If channel context is invalid or not on 2.4GHz .. */
 810         if ((!chanctx_conf ||
 811              chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) {
 812                 if (vif->type == NL80211_IFTYPE_STATION) {
 813                         /* ... relax constraints and disable rssi events */
 814                         iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 815                                             smps_mode);
 816                         iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
 817                                                     false);
 818                         iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 819                 }
 820                 return;
 821         }
 822
 823         bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
 824         if (bt_activity_grading >= BT_HIGH_TRAFFIC)
 825                 smps_mode = IEEE80211_SMPS_STATIC;
 826         else if (bt_activity_grading >= BT_LOW_TRAFFIC)
 827                 smps_mode = vif->type == NL80211_IFTYPE_AP ?
 828                                 IEEE80211_SMPS_OFF :
 829                                 IEEE80211_SMPS_DYNAMIC;
 830
 831         /* relax SMPS contraints for next association */
 832         if (!vif->bss_conf.assoc)
 833                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 834
 835         if (data->notif->rrc_enabled & BIT(mvmvif->phy_ctxt->id))
 836                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 837
 838         IWL_DEBUG_COEX(data->mvm,
 839                        "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n",
 840                        mvmvif->id, data->notif->bt_status, bt_activity_grading,
 841                        smps_mode);
 842
 843         if (vif->type == NL80211_IFTYPE_STATION)
 844                 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 845                                     smps_mode);
 846
 847         /* low latency is always primary */
 848         if (iwl_mvm_vif_low_latency(mvmvif)) {
 849                 data->primary_ll = true;
 850
 851                 data->secondary = data->primary;
 852                 data->primary = chanctx_conf;
 853         }
 854
 855         if (vif->type == NL80211_IFTYPE_AP) {
 856                 if (!mvmvif->ap_ibss_active)
 857                         return;
 858
 859                 if (chanctx_conf == data->primary)
 860                         return;
 861
 862                 if (!data->primary_ll) {
 863                         /*
 864                          * downgrade the current primary no matter what its
 865                          * type is.
 866                          */
 867                         data->secondary = data->primary;
 868                         data->primary = chanctx_conf;
 869                 } else {
 870                         /* there is low latency vif - we will be secondary */
 871                         data->secondary = chanctx_conf;
 872                 }
 873                 return;
 874         }
 875
 876         /*
 877          * STA / P2P Client, try to be primary if first vif. If we are in low
 878          * latency mode, we are already in primary and just don't do much
 879          */
 880         if (!data->primary || data->primary == chanctx_conf)
 881                 data->primary = chanctx_conf;
 882         else if (!data->secondary)
 883                 /* if secondary is not NULL, it might be a GO */
 884                 data->secondary = chanctx_conf;
 885
 886         /*
 887          * don't reduce the Tx power if one of these is true:
 888          *  we are in LOOSE
 889          *  single share antenna product
 890          *  BT is active
 891          *  we are associated
 892          */
 893         if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
 894             mvm->cfg->bt_shared_single_ant || !vif->bss_conf.assoc ||
 895             !data->notif->bt_status) {
 896                 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false);
 897                 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 898                 return;
 899         }
 900
 901         /* try to get the avg rssi from fw */
 902         ave_rssi = mvmvif->bf_data.ave_beacon_signal;
 903
 904         /* if the RSSI isn't valid, fake it is very low */
 905         if (!ave_rssi)
 906                 ave_rssi = -100;
 907         if (ave_rssi > -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH) {
 908                 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true))
 909                         IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 910         } else if (ave_rssi < -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH) {
 911                 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
 912                         IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 913         }
 914
 915         /* Begin to monitor the RSSI: it may influence the reduced Tx power */
 916         iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
 917 }
 918
 919 static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
 920 {
 921         struct iwl_bt_iterator_data data = {
 922                 .mvm = mvm,
 923                 .notif = &mvm->last_bt_notif_old,
 924         };
 925         struct iwl_bt_coex_ci_cmd_old cmd = {};
 926         u8 ci_bw_idx;
 927
 928         /* Ignore updates if we are in force mode */
 929         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
 930                 return;
 931
 932         rcu_read_lock();
 933         ieee80211_iterate_active_interfaces_atomic(
 934                                         mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 935                                         iwl_mvm_bt_notif_iterator, &data);
 936
 937         if (data.primary) {
 938                 struct ieee80211_chanctx_conf *chan = data.primary;
 939
 940                 if (WARN_ON(!chan->def.chan)) {
 941                         rcu_read_unlock();
 942                         return;
 943                 }
 944
 945                 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
 946                         ci_bw_idx = 0;
 947                         cmd.co_run_bw_primary = 0;
 948                 } else {
 949                         cmd.co_run_bw_primary = 1;
 950                         if (chan->def.center_freq1 >
 951                             chan->def.chan->center_freq)
 952                                 ci_bw_idx = 2;
 953                         else
 954                                 ci_bw_idx = 1;
 955                 }
 956
 957                 cmd.bt_primary_ci =
 958                         iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
 959                 cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv);
 960         }
 961
 962         if (data.secondary) {
 963                 struct ieee80211_chanctx_conf *chan = data.secondary;
 964
 965                 if (WARN_ON(!data.secondary->def.chan)) {
 966                         rcu_read_unlock();
 967                         return;
 968                 }
 969
 970                 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
 971                         ci_bw_idx = 0;
 972                         cmd.co_run_bw_secondary = 0;
 973                 } else {
 974                         cmd.co_run_bw_secondary = 1;
 975                         if (chan->def.center_freq1 >
 976                             chan->def.chan->center_freq)
 977                                 ci_bw_idx = 2;
 978                         else
 979                                 ci_bw_idx = 1;
 980                 }
 981
 982                 cmd.bt_secondary_ci =
 983                         iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
 984                 cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv);
 985         }
 986
 987         rcu_read_unlock();
 988
 989         /* Don't spam the fw with the same command over and over */
 990         if (memcmp(&cmd, &mvm->last_bt_ci_cmd_old, sizeof(cmd))) {
 991                 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0,
 992                                          sizeof(cmd), &cmd))
 993                         IWL_ERR(mvm, "Failed to send BT_CI cmd\n");
 994                 memcpy(&mvm->last_bt_ci_cmd_old, &cmd, sizeof(cmd));
 995         }
 996
 997         if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm))
 998                 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
 999 }
1000
1001 int iwl_mvm_rx_bt_coex_notif_old(struct iwl_mvm *mvm,
1002                                  struct iwl_rx_cmd_buffer *rxb,
1003                                  struct iwl_device_cmd *dev_cmd)
1004 {
1005         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1006         struct iwl_bt_coex_profile_notif_old *notif = (void *)pkt->data;
1007
1008         IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
1009         IWL_DEBUG_COEX(mvm, "\tBT status: %s\n",
1010                        notif->bt_status ? "ON" : "OFF");
1011         IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn);
1012         IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
1013         IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
1014                        le32_to_cpu(notif->primary_ch_lut));
1015         IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
1016                        le32_to_cpu(notif->secondary_ch_lut));
1017         IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
1018                        le32_to_cpu(notif->bt_activity_grading));
1019         IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n",
1020                        notif->bt_agg_traffic_load);
1021
1022         /* remember this notification for future use: rssi fluctuations */
1023         memcpy(&mvm->last_bt_notif_old, notif, sizeof(mvm->last_bt_notif_old));
1024
1025         iwl_mvm_bt_coex_notif_handle(mvm);
1026
1027         /*
1028          * This is an async handler for a notification, returning anything other
1029          * than 0 doesn't make sense even if HCMD failed.
1030          */
1031         return 0;
1032 }
1033
1034 static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
1035                                      struct ieee80211_vif *vif)
1036 {
1037         struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1038         struct iwl_bt_iterator_data *data = _data;
1039         struct iwl_mvm *mvm = data->mvm;
1040
1041         struct ieee80211_sta *sta;
1042         struct iwl_mvm_sta *mvmsta;
1043
1044         struct ieee80211_chanctx_conf *chanctx_conf;
1045
1046         rcu_read_lock();
1047         chanctx_conf = rcu_dereference(vif->chanctx_conf);
1048         /* If channel context is invalid or not on 2.4GHz - don't count it */
1049         if (!chanctx_conf ||
1050             chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
1051                 rcu_read_unlock();
1052                 return;
1053         }
1054         rcu_read_unlock();
1055
1056         if (vif->type != NL80211_IFTYPE_STATION ||
1057             mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1058                 return;
1059
1060         sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1061                                         lockdep_is_held(&mvm->mutex));
1062
1063         /* This can happen if the station has been removed right now */
1064         if (IS_ERR_OR_NULL(sta))
1065                 return;
1066
1067         mvmsta = iwl_mvm_sta_from_mac80211(sta);
1068 }
1069
1070 void iwl_mvm_bt_rssi_event_old(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1071                                enum ieee80211_rssi_event rssi_event)
1072 {
1073         struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1074         struct iwl_bt_iterator_data data = {
1075                 .mvm = mvm,
1076         };
1077         int ret;
1078
1079         lockdep_assert_held(&mvm->mutex);
1080
1081         /* Ignore updates if we are in force mode */
1082         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1083                 return;
1084
1085         /*
1086          * Rssi update while not associated - can happen since the statistics
1087          * are handled asynchronously
1088          */
1089         if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1090                 return;
1091
1092         /* No BT - reports should be disabled */
1093         if (!mvm->last_bt_notif_old.bt_status)
1094                 return;
1095
1096         IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
1097                        rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
1098
1099         /*
1100          * Check if rssi is good enough for reduced Tx power, but not in loose
1101          * scheme.
1102          */
1103         if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
1104             iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
1105                 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
1106                                                   false);
1107         else
1108                 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true);
1109
1110         if (ret)
1111                 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
1112
1113         ieee80211_iterate_active_interfaces_atomic(
1114                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1115                 iwl_mvm_bt_rssi_iterator, &data);
1116
1117         if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm))
1118                 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
1119 }
1120
1121 #define LINK_QUAL_AGG_TIME_LIMIT_DEF    (4000)
1122 #define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
1123
1124 u16 iwl_mvm_coex_agg_time_limit_old(struct iwl_mvm *mvm,
1125                                     struct ieee80211_sta *sta)
1126 {
1127         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1128         enum iwl_bt_coex_lut_type lut_type;
1129
1130         if (le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading) <
1131             BT_HIGH_TRAFFIC)
1132                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1133
1134         if (mvm->last_bt_notif_old.ttc_enabled)
1135                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1136
1137         lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1138
1139         if (lut_type == BT_COEX_LOOSE_LUT || lut_type == BT_COEX_INVALID_LUT)
1140                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1141
1142         /* tight coex, high bt traffic, reduce AGG time limit */
1143         return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
1144 }
1145
1146 bool iwl_mvm_bt_coex_is_mimo_allowed_old(struct iwl_mvm *mvm,
1147                                          struct ieee80211_sta *sta)
1148 {
1149         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1150         enum iwl_bt_coex_lut_type lut_type;
1151
1152         if (mvm->last_bt_notif_old.ttc_enabled)
1153                 return true;
1154
1155         if (le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading) <
1156             BT_HIGH_TRAFFIC)
1157                 return true;
1158
1159         /*
1160          * In Tight / TxTxDis, BT can't Rx while we Tx, so use both antennas
1161          * since BT is already killed.
1162          * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while
1163          * we Tx.
1164          * When we are in 5GHz, we'll get BT_COEX_INVALID_LUT allowing MIMO.
1165          */
1166         lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1167         return lut_type != BT_COEX_LOOSE_LUT;
1168 }
1169
1170 bool iwl_mvm_bt_coex_is_ant_avail_old(struct iwl_mvm *mvm, u8 ant)
1171 {
1172         u32 ag = le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading);
1173         return ag < BT_HIGH_TRAFFIC;
1174 }
1175
1176 bool iwl_mvm_bt_coex_is_shared_ant_avail_old(struct iwl_mvm *mvm)
1177 {
1178         u32 ag = le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading);
1179         return ag == BT_OFF;
1180 }
1181
1182 bool iwl_mvm_bt_coex_is_tpc_allowed_old(struct iwl_mvm *mvm,
1183                                         enum ieee80211_band band)
1184 {
1185         u32 bt_activity =
1186                 le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading);
1187
1188         if (band != IEEE80211_BAND_2GHZ)
1189                 return false;
1190
1191         return bt_activity >= BT_LOW_TRAFFIC;
1192 }
1193
1194 void iwl_mvm_bt_coex_vif_change_old(struct iwl_mvm *mvm)
1195 {
1196         iwl_mvm_bt_coex_notif_handle(mvm);
1197 }
1198
1199 int iwl_mvm_rx_ant_coupling_notif_old(struct iwl_mvm *mvm,
1200                                       struct iwl_rx_cmd_buffer *rxb,
1201                                       struct iwl_device_cmd *dev_cmd)
1202 {
1203         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1204         u32 ant_isolation = le32_to_cpup((void *)pkt->data);
1205         u8 __maybe_unused lower_bound, upper_bound;
1206         int ret;
1207         u8 lut;
1208
1209         struct iwl_bt_coex_cmd_old *bt_cmd;
1210         struct iwl_host_cmd cmd = {
1211                 .id = BT_CONFIG,
1212                 .len = { sizeof(*bt_cmd), },
1213                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
1214         };
1215
1216         if (!IWL_MVM_BT_COEX_CORUNNING)
1217                 return 0;
1218
1219         lockdep_assert_held(&mvm->mutex);
1220
1221         /* Ignore updates if we are in force mode */
1222         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1223                 return 0;
1224
1225         if (ant_isolation ==  mvm->last_ant_isol)
1226                 return 0;
1227
1228         for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++)
1229                 if (ant_isolation < antenna_coupling_ranges[lut + 1].range)
1230                         break;
1231
1232         lower_bound = antenna_coupling_ranges[lut].range;
1233
1234         if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1)
1235                 upper_bound = antenna_coupling_ranges[lut + 1].range;
1236         else
1237                 upper_bound = antenna_coupling_ranges[lut].range;
1238
1239         IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n",
1240                        ant_isolation, lower_bound, upper_bound, lut);
1241
1242         mvm->last_ant_isol = ant_isolation;
1243
1244         if (mvm->last_corun_lut == lut)
1245                 return 0;
1246
1247         mvm->last_corun_lut = lut;
1248
1249         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
1250         if (!bt_cmd)
1251                 return 0;
1252         cmd.data[0] = bt_cmd;
1253
1254         bt_cmd->flags = cpu_to_le32(BT_COEX_NW_OLD);
1255         bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
1256                                              BT_VALID_CORUN_LUT_20 |
1257                                              BT_VALID_CORUN_LUT_40);
1258
1259         /* For the moment, use the same LUT for 20GHz and 40GHz */
1260         memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[lut].lut20,
1261                sizeof(bt_cmd->bt4_corun_lut20));
1262
1263         memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[lut].lut20,
1264                sizeof(bt_cmd->bt4_corun_lut40));
1265
1266         ret = iwl_mvm_send_cmd(mvm, &cmd);
1267
1268         kfree(bt_cmd);
1269         return ret;
1270 }