LXR linux/drivers/net/wireless/intel/iwlwifi/mvm/coex

   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
  16 * WITHOUT ANY WARRANTY; without even the implied warranty of
  17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18 * General Public License for more details.
  19 *
  20 * You should have received a copy of the GNU General Public License
  21 * along with this program; if not, write to the Free Software
  22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  23 * USA
  24 *
  25 * The full GNU General Public License is included in this distribution
  26 * in the file called COPYING.
  27 *
  28 * Contact Information:
  29 *  Intel Linux Wireless <linuxwifi@intel.com>
  30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  31 *
  32 * BSD LICENSE
  33 *
  34 * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved.
  35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
  36 * All rights reserved.
  37 *
  38 * Redistribution and use in source and binary forms, with or without
  39 * modification, are permitted provided that the following conditions
  40 * are met:
  41 *
  42 *  * Redistributions of source code must retain the above copyright
  43 *    notice, this list of conditions and the following disclaimer.
  44 *  * Redistributions in binary form must reproduce the above copyright
  45 *    notice, this list of conditions and the following disclaimer in
  46 *    the documentation and/or other materials provided with the
  47 *    distribution.
  48 *  * Neither the name Intel Corporation nor the names of its
  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,
  57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  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
  79static 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
 105static 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
 115static 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
 122static 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
 167static 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*/
 216static 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
 291enum iwl_bt_kill_msk {
 292        BT_KILL_MSK_DEFAULT,
 293        BT_KILL_MSK_NEVER,
 294        BT_KILL_MSK_ALWAYS,
 295        BT_KILL_MSK_MAX,
 296};
 297
 298static const u32 iwl_bt_ctl_kill_msk[BT_KILL_MSK_MAX] = {
 299        [BT_KILL_MSK_DEFAULT] = 0xfffffc00,
 300        [BT_KILL_MSK_NEVER] = 0xffffffff,
 301        [BT_KILL_MSK_ALWAYS] = 0,
 302};
 303
 304static const u8 iwl_bt_cts_kill_msk[BT_MAX_AG][BT_COEX_MAX_LUT] = {
 305        {
 306                BT_KILL_MSK_ALWAYS,
 307                BT_KILL_MSK_ALWAYS,
 308                BT_KILL_MSK_ALWAYS,
 309        },
 310        {
 311                BT_KILL_MSK_NEVER,
 312                BT_KILL_MSK_NEVER,
 313                BT_KILL_MSK_NEVER,
 314        },
 315        {
 316                BT_KILL_MSK_NEVER,
 317                BT_KILL_MSK_NEVER,
 318                BT_KILL_MSK_NEVER,
 319        },
 320        {
 321                BT_KILL_MSK_DEFAULT,
 322                BT_KILL_MSK_NEVER,
 323                BT_KILL_MSK_DEFAULT,
 324        },
 325};
 326
 327static const u8 iwl_bt_ack_kill_msk[BT_MAX_AG][BT_COEX_MAX_LUT] = {
 328        {
 329                BT_KILL_MSK_ALWAYS,
 330                BT_KILL_MSK_ALWAYS,
 331                BT_KILL_MSK_ALWAYS,
 332        },
 333        {
 334                BT_KILL_MSK_ALWAYS,
 335                BT_KILL_MSK_ALWAYS,
 336                BT_KILL_MSK_ALWAYS,
 337        },
 338        {
 339                BT_KILL_MSK_ALWAYS,
 340                BT_KILL_MSK_ALWAYS,
 341                BT_KILL_MSK_ALWAYS,
 342        },
 343        {
 344                BT_KILL_MSK_DEFAULT,
 345                BT_KILL_MSK_ALWAYS,
 346                BT_KILL_MSK_DEFAULT,
 347        },
 348};
 349
 350struct corunning_block_luts {
 351        u8 range;
 352        __le32 lut20[BT_COEX_CORUN_LUT_SIZE];
 353};
 354
 355/*
 356 * Ranges for the antenna coupling calibration / co-running block LUT:
 357 *              LUT0: [ 0, 12[
 358 *              LUT1: [12, 20[
 359 *              LUT2: [20, 21[
 360 *              LUT3: [21, 23[
 361 *              LUT4: [23, 27[
 362 *              LUT5: [27, 30[
 363 *              LUT6: [30, 32[
 364 *              LUT7: [32, 33[
 365 *              LUT8: [33, - [
 366 */
 367static const struct corunning_block_luts antenna_coupling_ranges[] = {
 368        {
 369                .range = 0,
 370                .lut20 = {
 371                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 372                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 373                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 374                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 375                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 376                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 377                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 378                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 379                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 380                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 381                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 382                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 383                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 384                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 385                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 386                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 387                },
 388        },
 389        {
 390                .range = 12,
 391                .lut20 = {
 392                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 393                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 394                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 395                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 396                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 397                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 398                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 399                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 400                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 401                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 402                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 403                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 404                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 405                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 406                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 407                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 408                },
 409        },
 410        {
 411                .range = 20,
 412                .lut20 = {
 413                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 414                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 415                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 416                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 417                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 418                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 419                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 420                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 421                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 422                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 423                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 424                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 425                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 426                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 427                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 428                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 429                },
 430        },
 431        {
 432                .range = 21,
 433                .lut20 = {
 434                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 435                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 436                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 437                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 438                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 439                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 440                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 441                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 442                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 443                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 444                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 445                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 446                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 447                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 448                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 449                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 450                },
 451        },
 452        {
 453                .range = 23,
 454                .lut20 = {
 455                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 456                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 457                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 458                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 459                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 460                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 461                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 462                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 463                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 464                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 465                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 466                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 467                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 468                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 469                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 470                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 471                },
 472        },
 473        {
 474                .range = 27,
 475                .lut20 = {
 476                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 477                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 478                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 479                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 480                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 481                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 482                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 483                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 484                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 485                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 486                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 487                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 488                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 489                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 490                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 491                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 492                },
 493        },
 494        {
 495                .range = 30,
 496                .lut20 = {
 497                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 498                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 499                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 500                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 501                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 502                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 503                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 504                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 505                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 506                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 507                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 508                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 509                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 510                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 511                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 512                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 513                },
 514        },
 515        {
 516                .range = 32,
 517                .lut20 = {
 518                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 519                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 520                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 521                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 522                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 523                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 524                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 525                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 526                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 527                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 528                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 529                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 530                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 531                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 532                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 533                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 534                },
 535        },
 536        {
 537                .range = 33,
 538                .lut20 = {
 539                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 540                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 541                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 542                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 543                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 544                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 545                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 546                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 547                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 548                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 549                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 550                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 551                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 552                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 553                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 554                        cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 555                },
 556        },
 557};
 558
 559static enum iwl_bt_coex_lut_type
 560iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
 561{
 562        struct ieee80211_chanctx_conf *chanctx_conf;
 563        enum iwl_bt_coex_lut_type ret;
 564        u16 phy_ctx_id;
 565
 566        /*
 567         * Checking that we hold mvm->mutex is a good idea, but the rate
 568         * control can't acquire the mutex since it runs in Tx path.
 569         * So this is racy in that case, but in the worst case, the AMPDU
 570         * size limit will be wrong for a short time which is not a big
 571         * issue.
 572         */
 573
 574        rcu_read_lock();
 575
 576        chanctx_conf = rcu_dereference(vif->chanctx_conf);
 577
 578        if (!chanctx_conf ||
 579            chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
 580                rcu_read_unlock();
 581                return BT_COEX_INVALID_LUT;
 582        }
 583
 584        ret = BT_COEX_TX_DIS_LUT;
 585
 586        if (mvm->cfg->bt_shared_single_ant) {
 587                rcu_read_unlock();
 588                return ret;
 589        }
 590
 591        phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
 592
 593        if (mvm->last_bt_ci_cmd_old.primary_ch_phy_id == phy_ctx_id)
 594                ret = le32_to_cpu(mvm->last_bt_notif_old.primary_ch_lut);
 595        else if (mvm->last_bt_ci_cmd_old.secondary_ch_phy_id == phy_ctx_id)
 596                ret = le32_to_cpu(mvm->last_bt_notif_old.secondary_ch_lut);
 597        /* else - default = TX TX disallowed */
 598
 599        rcu_read_unlock();
 600
 601        return ret;
 602}
 603
 604int iwl_send_bt_init_conf_old(struct iwl_mvm *mvm)
 605{
 606        struct iwl_bt_coex_cmd_old *bt_cmd;
 607        struct iwl_host_cmd cmd = {
 608                .id = BT_CONFIG,
 609                .len = { sizeof(*bt_cmd), },
 610                .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 611        };
 612        int ret;
 613        u32 flags;
 614
 615        ret = iwl_send_bt_prio_tbl(mvm);
 616        if (ret)
 617                return ret;
 618
 619        bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
 620        if (!bt_cmd)
 621                return -ENOMEM;
 622        cmd.data[0] = bt_cmd;
 623
 624        lockdep_assert_held(&mvm->mutex);
 625
 626        if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) {
 627                switch (mvm->bt_force_ant_mode) {
 628                case BT_FORCE_ANT_AUTO:
 629                        flags = BT_COEX_AUTO_OLD;
 630                        break;
 631                case BT_FORCE_ANT_BT:
 632                        flags = BT_COEX_BT_OLD;
 633                        break;
 634                case BT_FORCE_ANT_WIFI:
 635                        flags = BT_COEX_WIFI_OLD;
 636                        break;
 637                default:
 638                        WARN_ON(1);
 639                        flags = 0;
 640                }
 641
 642                bt_cmd->flags = cpu_to_le32(flags);
 643                bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE);
 644                goto send_cmd;
 645        }
 646
 647        bt_cmd->max_kill = 5;
 648        bt_cmd->bt4_antenna_isolation_thr =
 649                IWL_MVM_BT_COEX_ANTENNA_COUPLING_THRS;
 650        bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling;
 651        bt_cmd->bt4_tx_tx_delta_freq_thr = 15;
 652        bt_cmd->bt4_tx_rx_max_freq0 = 15;
 653        bt_cmd->override_primary_lut = BT_COEX_INVALID_LUT;
 654        bt_cmd->override_secondary_lut = BT_COEX_INVALID_LUT;
 655
 656        flags = iwlwifi_mod_params.bt_coex_active ?
 657                        BT_COEX_NW_OLD : BT_COEX_DISABLE_OLD;
 658        bt_cmd->flags = cpu_to_le32(flags);
 659
 660        bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE |
 661                                            BT_VALID_BT_PRIO_BOOST |
 662                                            BT_VALID_MAX_KILL |
 663                                            BT_VALID_3W_TMRS |
 664                                            BT_VALID_KILL_ACK |
 665                                            BT_VALID_KILL_CTS |
 666                                            BT_VALID_REDUCED_TX_POWER |
 667                                            BT_VALID_LUT |
 668                                            BT_VALID_WIFI_RX_SW_PRIO_BOOST |
 669                                            BT_VALID_WIFI_TX_SW_PRIO_BOOST |
 670                                            BT_VALID_ANT_ISOLATION |
 671                                            BT_VALID_ANT_ISOLATION_THRS |
 672                                            BT_VALID_TXTX_DELTA_FREQ_THRS |
 673                                            BT_VALID_TXRX_MAX_FREQ_0 |
 674                                            BT_VALID_SYNC_TO_SCO |
 675                                            BT_VALID_TTC |
 676                                            BT_VALID_RRC);
 677
 678        if (IWL_MVM_BT_COEX_SYNC2SCO)
 679                bt_cmd->flags |= cpu_to_le32(BT_COEX_SYNC2SCO);
 680
 681        if (iwl_mvm_bt_is_plcr_supported(mvm)) {
 682                bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_CORUN_LUT_20 |
 683                                                     BT_VALID_CORUN_LUT_40);
 684                bt_cmd->flags |= cpu_to_le32(BT_COEX_CORUNNING);
 685        }
 686
 687        if (IWL_MVM_BT_COEX_MPLUT) {
 688                bt_cmd->flags |= cpu_to_le32(BT_COEX_MPLUT);
 689                bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_MULTI_PRIO_LUT);
 690        }
 691
 692        if (IWL_MVM_BT_COEX_TTC)
 693                bt_cmd->flags |= cpu_to_le32(BT_COEX_TTC);
 694
 695        if (iwl_mvm_bt_is_rrc_supported(mvm))
 696                bt_cmd->flags |= cpu_to_le32(BT_COEX_RRC);
 697
 698        if (mvm->cfg->bt_shared_single_ant)
 699                memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant,
 700                       sizeof(iwl_single_shared_ant));
 701        else
 702                memcpy(&bt_cmd->decision_lut, iwl_combined_lookup,
 703                       sizeof(iwl_combined_lookup));
 704
 705        /* Take first Co-running block LUT to get started */
 706        memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[0].lut20,
 707               sizeof(bt_cmd->bt4_corun_lut20));
 708        memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[0].lut20,
 709               sizeof(bt_cmd->bt4_corun_lut40));
 710
 711        memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost,
 712               sizeof(iwl_bt_prio_boost));
 713        bt_cmd->bt4_multiprio_lut[0] = cpu_to_le32(IWL_MVM_BT_COEX_MPLUT_REG0);
 714        bt_cmd->bt4_multiprio_lut[1] = cpu_to_le32(IWL_MVM_BT_COEX_MPLUT_REG1);
 715
 716send_cmd:
 717        memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
 718        memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
 719
 720        ret = iwl_mvm_send_cmd(mvm, &cmd);
 721
 722        kfree(bt_cmd);
 723        return ret;
 724}
 725
 726static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm)
 727{
 728        struct iwl_bt_coex_profile_notif_old *notif = &mvm->last_bt_notif_old;
 729        u32 primary_lut = le32_to_cpu(notif->primary_ch_lut);
 730        u32 ag = le32_to_cpu(notif->bt_activity_grading);
 731        struct iwl_bt_coex_cmd_old *bt_cmd;
 732        u8 ack_kill_msk, cts_kill_msk;
 733        struct iwl_host_cmd cmd = {
 734                .id = BT_CONFIG,
 735                .data[0] = &bt_cmd,
 736                .len = { sizeof(*bt_cmd), },
 737                .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 738        };
 739        int ret = 0;
 740
 741        lockdep_assert_held(&mvm->mutex);
 742
 743        ack_kill_msk = iwl_bt_ack_kill_msk[ag][primary_lut];
 744        cts_kill_msk = iwl_bt_cts_kill_msk[ag][primary_lut];
 745
 746        if (mvm->bt_ack_kill_msk[0] == ack_kill_msk &&
 747            mvm->bt_cts_kill_msk[0] == cts_kill_msk)
 748                return 0;
 749
 750        mvm->bt_ack_kill_msk[0] = ack_kill_msk;
 751        mvm->bt_cts_kill_msk[0] = cts_kill_msk;
 752
 753        bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
 754        if (!bt_cmd)
 755                return -ENOMEM;
 756        cmd.data[0] = bt_cmd;
 757        bt_cmd->flags = cpu_to_le32(BT_COEX_NW_OLD);
 758
 759        bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ctl_kill_msk[ack_kill_msk]);
 760        bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_ctl_kill_msk[cts_kill_msk]);
 761        bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
 762                                             BT_VALID_KILL_ACK |
 763                                             BT_VALID_KILL_CTS);
 764
 765        ret = iwl_mvm_send_cmd(mvm, &cmd);
 766
 767        kfree(bt_cmd);
 768        return ret;
 769}
 770
 771static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
 772                                       bool enable)
 773{
 774        struct iwl_bt_coex_cmd_old *bt_cmd;
 775        /* Send ASYNC since this can be sent from an atomic context */
 776        struct iwl_host_cmd cmd = {
 777                .id = BT_CONFIG,
 778                .len = { sizeof(*bt_cmd), },
 779                .dataflags = { IWL_HCMD_DFL_DUP, },
 780                .flags = CMD_ASYNC,
 781        };
 782        struct iwl_mvm_sta *mvmsta;
 783        int ret;
 784
 785        mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
 786        if (!mvmsta)
 787                return 0;
 788
 789        /* nothing to do */
 790        if (mvmsta->bt_reduced_txpower == enable)
 791                return 0;
 792
 793        bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC);
 794        if (!bt_cmd)
 795                return -ENOMEM;
 796        cmd.data[0] = bt_cmd;
 797        bt_cmd->flags = cpu_to_le32(BT_COEX_NW_OLD);
 798
 799        bt_cmd->valid_bit_msk =
 800                cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER);
 801        bt_cmd->bt_reduced_tx_power = sta_id;
 802
 803        if (enable)
 804                bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT;
 805
 806        IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
 807                       enable ? "en" : "dis", sta_id);
 808
 809        mvmsta->bt_reduced_txpower = enable;
 810
 811        ret = iwl_mvm_send_cmd(mvm, &cmd);
 812
 813        kfree(bt_cmd);
 814        return ret;
 815}
 816
 817struct iwl_bt_iterator_data {
 818        struct iwl_bt_coex_profile_notif_old *notif;
 819        struct iwl_mvm *mvm;
 820        struct ieee80211_chanctx_conf *primary;
 821        struct ieee80211_chanctx_conf *secondary;
 822        bool primary_ll;
 823};
 824
 825static inline
 826void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
 827                                       struct ieee80211_vif *vif,
 828                                       bool enable, int rssi)
 829{
 830        struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 831
 832        mvmvif->bf_data.last_bt_coex_event = rssi;
 833        mvmvif->bf_data.bt_coex_max_thold =
 834                enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0;
 835        mvmvif->bf_data.bt_coex_min_thold =
 836                enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0;
 837}
 838
 839/* must be called under rcu_read_lock */
 840static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 841                                      struct ieee80211_vif *vif)
 842{
 843        struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 844        struct iwl_bt_iterator_data *data = _data;
 845        struct iwl_mvm *mvm = data->mvm;
 846        struct ieee80211_chanctx_conf *chanctx_conf;
 847        enum ieee80211_smps_mode smps_mode;
 848        u32 bt_activity_grading;
 849        int ave_rssi;
 850
 851        lockdep_assert_held(&mvm->mutex);
 852
 853        switch (vif->type) {
 854        case NL80211_IFTYPE_STATION:
 855                /* default smps_mode for BSS / P2P client is AUTOMATIC */
 856                smps_mode = IEEE80211_SMPS_AUTOMATIC;
 857                break;
 858        case NL80211_IFTYPE_AP:
 859                if (!mvmvif->ap_ibss_active)
 860                        return;
 861                break;
 862        default:
 863                return;
 864        }
 865
 866        chanctx_conf = rcu_dereference(vif->chanctx_conf);
 867
 868        /* If channel context is invalid or not on 2.4GHz .. */
 869        if ((!chanctx_conf ||
 870             chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) {
 871                if (vif->type == NL80211_IFTYPE_STATION) {
 872                        /* ... relax constraints and disable rssi events */
 873                        iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 874                                            smps_mode);
 875                        iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
 876                                                    false);
 877                        iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 878                }
 879                return;
 880        }
 881
 882        bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
 883        if (bt_activity_grading >= BT_HIGH_TRAFFIC)
 884                smps_mode = IEEE80211_SMPS_STATIC;
 885        else if (bt_activity_grading >= BT_LOW_TRAFFIC)
 886                smps_mode = vif->type == NL80211_IFTYPE_AP ?
 887                                IEEE80211_SMPS_OFF :
 888                                IEEE80211_SMPS_DYNAMIC;
 889
 890        /* relax SMPS contraints for next association */
 891        if (!vif->bss_conf.assoc)
 892                smps_mode = IEEE80211_SMPS_AUTOMATIC;
 893
 894        if (mvmvif->phy_ctxt &&
 895            data->notif->rrc_enabled & BIT(mvmvif->phy_ctxt->id))
 896                smps_mode = IEEE80211_SMPS_AUTOMATIC;
 897
 898        IWL_DEBUG_COEX(data->mvm,
 899                       "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n",
 900                       mvmvif->id, data->notif->bt_status, bt_activity_grading,
 901                       smps_mode);
 902
 903        if (vif->type == NL80211_IFTYPE_STATION)
 904                iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 905                                    smps_mode);
 906
 907        /* low latency is always primary */
 908        if (iwl_mvm_vif_low_latency(mvmvif)) {
 909                data->primary_ll = true;
 910
 911                data->secondary = data->primary;
 912                data->primary = chanctx_conf;
 913        }
 914
 915        if (vif->type == NL80211_IFTYPE_AP) {
 916                if (!mvmvif->ap_ibss_active)
 917                        return;
 918
 919                if (chanctx_conf == data->primary)
 920                        return;
 921
 922                if (!data->primary_ll) {
 923                        /*
 924                         * downgrade the current primary no matter what its
 925                         * type is.
 926                         */
 927                        data->secondary = data->primary;
 928                        data->primary = chanctx_conf;
 929                } else {
 930                        /* there is low latency vif - we will be secondary */
 931                        data->secondary = chanctx_conf;
 932                }
 933                return;
 934        }
 935
 936        /*
 937         * STA / P2P Client, try to be primary if first vif. If we are in low
 938         * latency mode, we are already in primary and just don't do much
 939         */
 940        if (!data->primary || data->primary == chanctx_conf)
 941                data->primary = chanctx_conf;
 942        else if (!data->secondary)
 943                /* if secondary is not NULL, it might be a GO */
 944                data->secondary = chanctx_conf;
 945
 946        /*
 947         * don't reduce the Tx power if one of these is true:
 948         *  we are in LOOSE
 949         *  single share antenna product
 950         *  BT is active
 951         *  we are associated
 952         */
 953        if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
 954            mvm->cfg->bt_shared_single_ant || !vif->bss_conf.assoc ||
 955            !data->notif->bt_status) {
 956                iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false);
 957                iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 958                return;
 959        }
 960
 961        /* try to get the avg rssi from fw */
 962        ave_rssi = mvmvif->bf_data.ave_beacon_signal;
 963
 964        /* if the RSSI isn't valid, fake it is very low */
 965        if (!ave_rssi)
 966                ave_rssi = -100;
 967        if (ave_rssi > -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH) {
 968                if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true))
 969                        IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 970        } else if (ave_rssi < -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH) {
 971                if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
 972                        IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 973        }
 974
 975        /* Begin to monitor the RSSI: it may influence the reduced Tx power */
 976        iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
 977}
 978
 979static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
 980{
 981        struct iwl_bt_iterator_data data = {
 982                .mvm = mvm,
 983                .notif = &mvm->last_bt_notif_old,
 984        };
 985        struct iwl_bt_coex_ci_cmd_old cmd = {};
 986        u8 ci_bw_idx;
 987
 988        /* Ignore updates if we are in force mode */
 989        if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
 990                return;
 991
 992        rcu_read_lock();
 993        ieee80211_iterate_active_interfaces_atomic(
 994                                        mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 995                                        iwl_mvm_bt_notif_iterator, &data);
 996
 997        if (data.primary) {
 998                struct ieee80211_chanctx_conf *chan = data.primary;
 999
1000                if (WARN_ON(!chan->def.chan)) {

1001                        rcu_read_unlock();
1002                        return;
1003                }
1004
1005                if (chan->def.width < NL80211_CHAN_WIDTH_40) {
1006                        ci_bw_idx = 0;
1007                        cmd.co_run_bw_primary = 0;
1008                } else {
1009                        cmd.co_run_bw_primary = 1;
1010                        if (chan->def.center_freq1 >
1011                            chan->def.chan->center_freq)
1012                                ci_bw_idx = 2;
1013                        else
1014                                ci_bw_idx = 1;
1015                }
1016
1017                cmd.bt_primary_ci =
1018                        iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
1019                cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv);
1020        }
1021
1022        if (data.secondary) {
1023                struct ieee80211_chanctx_conf *chan = data.secondary;
1024
1025                if (WARN_ON(!data.secondary->def.chan)) {
1026                        rcu_read_unlock();
1027                        return;
1028                }
1029
1030                if (chan->def.width < NL80211_CHAN_WIDTH_40) {
1031                        ci_bw_idx = 0;
1032                        cmd.co_run_bw_secondary = 0;
1033                } else {
1034                        cmd.co_run_bw_secondary = 1;
1035                        if (chan->def.center_freq1 >
1036                            chan->def.chan->center_freq)
1037                                ci_bw_idx = 2;
1038                        else
1039                                ci_bw_idx = 1;
1040                }
1041
1042                cmd.bt_secondary_ci =
1043                        iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
1044                cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv);
1045        }
1046
1047        rcu_read_unlock();
1048
1049        /* Don't spam the fw with the same command over and over */
1050        if (memcmp(&cmd, &mvm->last_bt_ci_cmd_old, sizeof(cmd))) {
1051                if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0,
1052                                         sizeof(cmd), &cmd))
1053                        IWL_ERR(mvm, "Failed to send BT_CI cmd\n");
1054                memcpy(&mvm->last_bt_ci_cmd_old, &cmd, sizeof(cmd));
1055        }
1056
1057        if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm))
1058                IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
1059}
1060
1061void iwl_mvm_rx_bt_coex_notif_old(struct iwl_mvm *mvm,
1062                                  struct iwl_rx_cmd_buffer *rxb)
1063{
1064        struct iwl_rx_packet *pkt = rxb_addr(rxb);
1065        struct iwl_bt_coex_profile_notif_old *notif = (void *)pkt->data;
1066
1067        IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
1068        IWL_DEBUG_COEX(mvm, "\tBT status: %s\n",
1069                       notif->bt_status ? "ON" : "OFF");
1070        IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn);
1071        IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
1072        IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
1073                       le32_to_cpu(notif->primary_ch_lut));
1074        IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
1075                       le32_to_cpu(notif->secondary_ch_lut));
1076        IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
1077                       le32_to_cpu(notif->bt_activity_grading));
1078        IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n",
1079                       notif->bt_agg_traffic_load);
1080
1081        /* remember this notification for future use: rssi fluctuations */
1082        memcpy(&mvm->last_bt_notif_old, notif, sizeof(mvm->last_bt_notif_old));
1083
1084        iwl_mvm_bt_coex_notif_handle(mvm);
1085}
1086
1087static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
1088                                     struct ieee80211_vif *vif)
1089{
1090        struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1091        struct iwl_bt_iterator_data *data = _data;
1092        struct iwl_mvm *mvm = data->mvm;
1093
1094        struct ieee80211_sta *sta;
1095        struct iwl_mvm_sta *mvmsta;
1096
1097        struct ieee80211_chanctx_conf *chanctx_conf;
1098
1099        rcu_read_lock();
1100        chanctx_conf = rcu_dereference(vif->chanctx_conf);
1101        /* If channel context is invalid or not on 2.4GHz - don't count it */
1102        if (!chanctx_conf ||
1103            chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
1104                rcu_read_unlock();
1105                return;
1106        }
1107        rcu_read_unlock();
1108
1109        if (vif->type != NL80211_IFTYPE_STATION ||
1110            mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1111                return;
1112
1113        sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1114                                        lockdep_is_held(&mvm->mutex));
1115
1116        /* This can happen if the station has been removed right now */
1117        if (IS_ERR_OR_NULL(sta))
1118                return;
1119
1120        mvmsta = iwl_mvm_sta_from_mac80211(sta);
1121}
1122
1123void iwl_mvm_bt_rssi_event_old(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1124                               enum ieee80211_rssi_event_data rssi_event)
1125{
1126        struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1127        struct iwl_bt_iterator_data data = {
1128                .mvm = mvm,
1129        };
1130        int ret;
1131
1132        lockdep_assert_held(&mvm->mutex);
1133
1134        /* Ignore updates if we are in force mode */
1135        if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1136                return;
1137
1138        /*
1139         * Rssi update while not associated - can happen since the statistics
1140         * are handled asynchronously
1141         */
1142        if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1143                return;
1144
1145        /* No BT - reports should be disabled */
1146        if (!mvm->last_bt_notif_old.bt_status)
1147                return;
1148
1149        IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
1150                       rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
1151
1152        /*
1153         * Check if rssi is good enough for reduced Tx power, but not in loose
1154         * scheme.
1155         */
1156        if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
1157            iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
1158                ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
1159                                                  false);
1160        else
1161                ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true);
1162
1163        if (ret)
1164                IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
1165
1166        ieee80211_iterate_active_interfaces_atomic(
1167                mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1168                iwl_mvm_bt_rssi_iterator, &data);
1169
1170        if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm))
1171                IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
1172}
1173
1174#define LINK_QUAL_AGG_TIME_LIMIT_DEF    (4000)
1175#define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
1176
1177u16 iwl_mvm_coex_agg_time_limit_old(struct iwl_mvm *mvm,
1178                                    struct ieee80211_sta *sta)
1179{
1180        struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1181        enum iwl_bt_coex_lut_type lut_type;
1182
1183        if (le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading) <
1184            BT_HIGH_TRAFFIC)
1185                return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1186
1187        if (mvm->last_bt_notif_old.ttc_enabled)
1188                return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1189
1190        lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1191
1192        if (lut_type == BT_COEX_LOOSE_LUT || lut_type == BT_COEX_INVALID_LUT)
1193                return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1194
1195        /* tight coex, high bt traffic, reduce AGG time limit */
1196        return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
1197}
1198
1199bool iwl_mvm_bt_coex_is_mimo_allowed_old(struct iwl_mvm *mvm,
1200                                         struct ieee80211_sta *sta)
1201{
1202        struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1203        enum iwl_bt_coex_lut_type lut_type;
1204
1205        if (mvm->last_bt_notif_old.ttc_enabled)
1206                return true;
1207
1208        if (le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading) <
1209            BT_HIGH_TRAFFIC)
1210                return true;
1211
1212        /*
1213         * In Tight / TxTxDis, BT can't Rx while we Tx, so use both antennas
1214         * since BT is already killed.
1215         * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while
1216         * we Tx.
1217         * When we are in 5GHz, we'll get BT_COEX_INVALID_LUT allowing MIMO.
1218         */
1219        lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1220        return lut_type != BT_COEX_LOOSE_LUT;
1221}
1222
1223bool iwl_mvm_bt_coex_is_shared_ant_avail_old(struct iwl_mvm *mvm)
1224{
1225        u32 ag = le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading);
1226        return ag < BT_HIGH_TRAFFIC;
1227}
1228
1229bool iwl_mvm_bt_coex_is_tpc_allowed_old(struct iwl_mvm *mvm,
1230                                        enum ieee80211_band band)
1231{
1232        u32 bt_activity =
1233                le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading);
1234
1235        if (band != IEEE80211_BAND_2GHZ)
1236                return false;
1237
1238        return bt_activity >= BT_LOW_TRAFFIC;
1239}
1240
1241void iwl_mvm_bt_coex_vif_change_old(struct iwl_mvm *mvm)
1242{
1243        iwl_mvm_bt_coex_notif_handle(mvm);
1244}
1245
1246void iwl_mvm_rx_ant_coupling_notif_old(struct iwl_mvm *mvm,
1247                                       struct iwl_rx_cmd_buffer *rxb)
1248{
1249        struct iwl_rx_packet *pkt = rxb_addr(rxb);
1250        u32 ant_isolation = le32_to_cpup((void *)pkt->data);
1251        u8 __maybe_unused lower_bound, upper_bound;
1252        u8 lut;
1253
1254        struct iwl_bt_coex_cmd_old *bt_cmd;
1255        struct iwl_host_cmd cmd = {
1256                .id = BT_CONFIG,
1257                .len = { sizeof(*bt_cmd), },
1258                .dataflags = { IWL_HCMD_DFL_NOCOPY, },
1259        };
1260
1261        if (!iwl_mvm_bt_is_plcr_supported(mvm))
1262                return;
1263
1264        lockdep_assert_held(&mvm->mutex);
1265
1266        /* Ignore updates if we are in force mode */
1267        if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1268                return;
1269
1270        if (ant_isolation ==  mvm->last_ant_isol)
1271                return;
1272
1273        for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++)
1274                if (ant_isolation < antenna_coupling_ranges[lut + 1].range)
1275                        break;
1276
1277        lower_bound = antenna_coupling_ranges[lut].range;
1278
1279        if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1)
1280                upper_bound = antenna_coupling_ranges[lut + 1].range;
1281        else
1282                upper_bound = antenna_coupling_ranges[lut].range;
1283
1284        IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n",
1285                       ant_isolation, lower_bound, upper_bound, lut);
1286
1287        mvm->last_ant_isol = ant_isolation;
1288
1289        if (mvm->last_corun_lut == lut)
1290                return;
1291
1292        mvm->last_corun_lut = lut;
1293
1294        bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
1295        if (!bt_cmd)
1296                return;
1297        cmd.data[0] = bt_cmd;
1298
1299        bt_cmd->flags = cpu_to_le32(BT_COEX_NW_OLD);
1300        bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
1301                                             BT_VALID_CORUN_LUT_20 |
1302                                             BT_VALID_CORUN_LUT_40);
1303
1304        /* For the moment, use the same LUT for 20GHz and 40GHz */
1305        memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[lut].lut20,
1306               sizeof(bt_cmd->bt4_corun_lut20));
1307
1308        memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[lut].lut20,
1309               sizeof(bt_cmd->bt4_corun_lut40));
1310
1311        if (iwl_mvm_send_cmd(mvm, &cmd))
1312                IWL_ERR(mvm, "failed to send BT_CONFIG command\n");
1313
1314        kfree(bt_cmd);
1315}
1316