LXR linux/drivers/net/wireless/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 <ilw@linux.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
 291struct 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 */
 308static 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
 500static enum iwl_bt_coex_lut_type
 501iwl_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
 545int 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
 657send_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
 667static 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
 712static 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
 758struct 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
 766static inline
 767void 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 */
 781static 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
 919static 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

1001int 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
1034static 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
1070void 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
1124u16 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
1146bool 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
1170bool 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
1176bool 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
1182bool 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
1194void iwl_mvm_bt_coex_vif_change_old(struct iwl_mvm *mvm)
1195{
1196        iwl_mvm_bt_coex_notif_handle(mvm);
1197}
1198
1199int 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}
1271