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

   1 /******************************************************************************
   2  *
   3  * This file is provided under a dual BSD/GPLv2 license.  When using or
   4  * redistributing this file, you may do so under either license.
   5  *
   6  * GPL LICENSE SUMMARY
   7  *
   8  * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved.
   9  * Copyright(c) 2013 - 2015 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 - 2015 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 /* 20MHz / 40MHz below / 40Mhz above*/
  76 static const __le64 iwl_ci_mask[][3] = {
  77         /* dummy entry for channel 0 */
  78         {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
  79         {
  80                 cpu_to_le64(0x0000001FFFULL),
  81                 cpu_to_le64(0x0ULL),
  82                 cpu_to_le64(0x00007FFFFFULL),
  83         },
  84         {
  85                 cpu_to_le64(0x000000FFFFULL),
  86                 cpu_to_le64(0x0ULL),
  87                 cpu_to_le64(0x0003FFFFFFULL),
  88         },
  89         {
  90                 cpu_to_le64(0x000003FFFCULL),
  91                 cpu_to_le64(0x0ULL),
  92                 cpu_to_le64(0x000FFFFFFCULL),
  93         },
  94         {
  95                 cpu_to_le64(0x00001FFFE0ULL),
  96                 cpu_to_le64(0x0ULL),
  97                 cpu_to_le64(0x007FFFFFE0ULL),
  98         },
  99         {
 100                 cpu_to_le64(0x00007FFF80ULL),
 101                 cpu_to_le64(0x00007FFFFFULL),
 102                 cpu_to_le64(0x01FFFFFF80ULL),
 103         },
 104         {
 105                 cpu_to_le64(0x0003FFFC00ULL),
 106                 cpu_to_le64(0x0003FFFFFFULL),
 107                 cpu_to_le64(0x0FFFFFFC00ULL),
 108         },
 109         {
 110                 cpu_to_le64(0x000FFFF000ULL),
 111                 cpu_to_le64(0x000FFFFFFCULL),
 112                 cpu_to_le64(0x3FFFFFF000ULL),
 113         },
 114         {
 115                 cpu_to_le64(0x007FFF8000ULL),
 116                 cpu_to_le64(0x007FFFFFE0ULL),
 117                 cpu_to_le64(0xFFFFFF8000ULL),
 118         },
 119         {
 120                 cpu_to_le64(0x01FFFE0000ULL),
 121                 cpu_to_le64(0x01FFFFFF80ULL),
 122                 cpu_to_le64(0xFFFFFE0000ULL),
 123         },
 124         {
 125                 cpu_to_le64(0x0FFFF00000ULL),
 126                 cpu_to_le64(0x0FFFFFFC00ULL),
 127                 cpu_to_le64(0x0ULL),
 128         },
 129         {
 130                 cpu_to_le64(0x3FFFC00000ULL),
 131                 cpu_to_le64(0x3FFFFFF000ULL),
 132                 cpu_to_le64(0x0)
 133         },
 134         {
 135                 cpu_to_le64(0xFFFE000000ULL),
 136                 cpu_to_le64(0xFFFFFF8000ULL),
 137                 cpu_to_le64(0x0)
 138         },
 139         {
 140                 cpu_to_le64(0xFFF8000000ULL),
 141                 cpu_to_le64(0xFFFFFE0000ULL),
 142                 cpu_to_le64(0x0)
 143         },
 144         {
 145                 cpu_to_le64(0xFFC0000000ULL),
 146                 cpu_to_le64(0x0ULL),
 147                 cpu_to_le64(0x0ULL)
 148         },
 149 };
 150
 151 struct corunning_block_luts {
 152         u8 range;
 153         __le32 lut20[BT_COEX_CORUN_LUT_SIZE];
 154 };
 155
 156 /*
 157  * Ranges for the antenna coupling calibration / co-running block LUT:
 158  *              LUT0: [ 0, 12[
 159  *              LUT1: [12, 20[
 160  *              LUT2: [20, 21[
 161  *              LUT3: [21, 23[
 162  *              LUT4: [23, 27[
 163  *              LUT5: [27, 30[
 164  *              LUT6: [30, 32[
 165  *              LUT7: [32, 33[
 166  *              LUT8: [33, - [
 167  */
 168 static const struct corunning_block_luts antenna_coupling_ranges[] = {
 169         {
 170                 .range = 0,
 171                 .lut20 = {
 172                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 173                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 174                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 175                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 176                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 177                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 178                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 179                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 180                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 181                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 182                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 183                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 184                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 185                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 186                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 187                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 188                 },
 189         },
 190         {
 191                 .range = 12,
 192                 .lut20 = {
 193                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 194                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 195                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 196                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 197                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 198                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 199                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 200                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 201                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 202                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 203                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 204                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 205                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 206                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 207                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 208                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 209                 },
 210         },
 211         {
 212                 .range = 20,
 213                 .lut20 = {
 214                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 215                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 216                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 217                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 218                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 219                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 220                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 221                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 222                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 223                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 224                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 225                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 226                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 227                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 228                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 229                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 230                 },
 231         },
 232         {
 233                 .range = 21,
 234                 .lut20 = {
 235                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 236                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 237                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 238                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 239                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 240                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 241                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 242                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 243                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 244                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 245                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 246                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 247                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 248                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 249                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 250                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 251                 },
 252         },
 253         {
 254                 .range = 23,
 255                 .lut20 = {
 256                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 257                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 258                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 259                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 260                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 261                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 262                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 263                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 264                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 265                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 266                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 267                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 268                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 269                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 270                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 271                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 272                 },
 273         },
 274         {
 275                 .range = 27,
 276                 .lut20 = {
 277                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 278                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 279                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 280                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 281                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 282                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 283                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 284                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 285                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 286                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 287                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 288                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 289                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 290                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 291                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 292                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 293                 },
 294         },
 295         {
 296                 .range = 30,
 297                 .lut20 = {
 298                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 299                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 300                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 301                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 302                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 303                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 304                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 305                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 306                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 307                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 308                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 309                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 310                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 311                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 312                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 313                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 314                 },
 315         },
 316         {
 317                 .range = 32,
 318                 .lut20 = {
 319                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 320                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 321                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 322                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 323                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 324                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 325                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 326                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 327                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 328                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 329                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 330                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 331                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 332                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 333                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 334                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 335                 },
 336         },
 337         {
 338                 .range = 33,
 339                 .lut20 = {
 340                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 341                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 342                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 343                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 344                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 345                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 346                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 347                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 348                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 349                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 350                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 351                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 352                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 353                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 354                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 355                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 356                 },
 357         },
 358 };
 359
 360 static enum iwl_bt_coex_lut_type
 361 iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
 362 {
 363         struct ieee80211_chanctx_conf *chanctx_conf;
 364         enum iwl_bt_coex_lut_type ret;
 365         u16 phy_ctx_id;
 366         u32 primary_ch_phy_id, secondary_ch_phy_id;
 367
 368         /*
 369          * Checking that we hold mvm->mutex is a good idea, but the rate
 370          * control can't acquire the mutex since it runs in Tx path.
 371          * So this is racy in that case, but in the worst case, the AMPDU
 372          * size limit will be wrong for a short time which is not a big
 373          * issue.
 374          */
 375
 376         rcu_read_lock();
 377
 378         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 379
 380         if (!chanctx_conf ||
 381              chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
 382                 rcu_read_unlock();
 383                 return BT_COEX_INVALID_LUT;
 384         }
 385
 386         ret = BT_COEX_TX_DIS_LUT;
 387
 388         if (mvm->cfg->bt_shared_single_ant) {
 389                 rcu_read_unlock();
 390                 return ret;
 391         }
 392
 393         phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
 394         primary_ch_phy_id = le32_to_cpu(mvm->last_bt_ci_cmd.primary_ch_phy_id);
 395         secondary_ch_phy_id =
 396                 le32_to_cpu(mvm->last_bt_ci_cmd.secondary_ch_phy_id);
 397
 398         if (primary_ch_phy_id == phy_ctx_id)
 399                 ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut);
 400         else if (secondary_ch_phy_id == phy_ctx_id)
 401                 ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut);
 402         /* else - default = TX TX disallowed */
 403
 404         rcu_read_unlock();
 405
 406         return ret;
 407 }
 408
 409 int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
 410 {
 411         struct iwl_bt_coex_cmd bt_cmd = {};
 412         u32 mode;
 413
 414         if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_BT_COEX_SPLIT))
 415                 return iwl_send_bt_init_conf_old(mvm);
 416
 417         lockdep_assert_held(&mvm->mutex);
 418
 419         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) {
 420                 switch (mvm->bt_force_ant_mode) {
 421                 case BT_FORCE_ANT_BT:
 422                         mode = BT_COEX_BT;
 423                         break;
 424                 case BT_FORCE_ANT_WIFI:
 425                         mode = BT_COEX_WIFI;
 426                         break;
 427                 default:
 428                         WARN_ON(1);
 429                         mode = 0;
 430                 }
 431
 432                 bt_cmd.mode = cpu_to_le32(mode);
 433                 goto send_cmd;
 434         }
 435
 436         mode = iwlwifi_mod_params.bt_coex_active ? BT_COEX_NW : BT_COEX_DISABLE;
 437         bt_cmd.mode = cpu_to_le32(mode);
 438
 439         if (IWL_MVM_BT_COEX_SYNC2SCO)
 440                 bt_cmd.enabled_modules |=
 441                         cpu_to_le32(BT_COEX_SYNC2SCO_ENABLED);
 442
 443         if (iwl_mvm_bt_is_plcr_supported(mvm))
 444                 bt_cmd.enabled_modules |= cpu_to_le32(BT_COEX_CORUN_ENABLED);
 445
 446         if (iwl_mvm_is_mplut_supported(mvm))
 447                 bt_cmd.enabled_modules |= cpu_to_le32(BT_COEX_MPLUT_ENABLED);
 448
 449         bt_cmd.enabled_modules |= cpu_to_le32(BT_COEX_HIGH_BAND_RET);
 450
 451 send_cmd:
 452         memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
 453         memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
 454
 455         return iwl_mvm_send_cmd_pdu(mvm, BT_CONFIG, 0, sizeof(bt_cmd), &bt_cmd);
 456 }
 457
 458 static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
 459                                        bool enable)
 460 {
 461         struct iwl_bt_coex_reduced_txp_update_cmd cmd = {};
 462         struct iwl_mvm_sta *mvmsta;
 463         u32 value;
 464         int ret;
 465
 466         mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
 467         if (!mvmsta)
 468                 return 0;
 469
 470         /* nothing to do */
 471         if (mvmsta->bt_reduced_txpower == enable)
 472                 return 0;
 473
 474         value = mvmsta->sta_id;
 475
 476         if (enable)
 477                 value |= BT_REDUCED_TX_POWER_BIT;
 478
 479         IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
 480                        enable ? "en" : "dis", sta_id);
 481
 482         cmd.reduced_txp = cpu_to_le32(value);
 483         mvmsta->bt_reduced_txpower = enable;
 484
 485         ret = iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_REDUCED_TXP, CMD_ASYNC,
 486                                    sizeof(cmd), &cmd);
 487
 488         return ret;
 489 }
 490
 491 struct iwl_bt_iterator_data {
 492         struct iwl_bt_coex_profile_notif *notif;
 493         struct iwl_mvm *mvm;
 494         struct ieee80211_chanctx_conf *primary;
 495         struct ieee80211_chanctx_conf *secondary;
 496         bool primary_ll;
 497 };
 498
 499 static inline
 500 void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
 501                                        struct ieee80211_vif *vif,
 502                                        bool enable, int rssi)
 503 {
 504         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 505
 506         mvmvif->bf_data.last_bt_coex_event = rssi;
 507         mvmvif->bf_data.bt_coex_max_thold =
 508                 enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0;
 509         mvmvif->bf_data.bt_coex_min_thold =
 510                 enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0;
 511 }
 512
 513 /* must be called under rcu_read_lock */
 514 static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 515                                       struct ieee80211_vif *vif)
 516 {
 517         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 518         struct iwl_bt_iterator_data *data = _data;
 519         struct iwl_mvm *mvm = data->mvm;
 520         struct ieee80211_chanctx_conf *chanctx_conf;
 521         /* default smps_mode is AUTOMATIC - only used for client modes */
 522         enum ieee80211_smps_mode smps_mode = IEEE80211_SMPS_AUTOMATIC;
 523         u32 bt_activity_grading;
 524         int ave_rssi;
 525
 526         lockdep_assert_held(&mvm->mutex);
 527
 528         switch (vif->type) {
 529         case NL80211_IFTYPE_STATION:
 530                 break;
 531         case NL80211_IFTYPE_AP:
 532                 if (!mvmvif->ap_ibss_active)
 533                         return;
 534                 break;
 535         default:
 536                 return;
 537         }
 538
 539         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 540
 541         /* If channel context is invalid or not on 2.4GHz .. */
 542         if ((!chanctx_conf ||
 543              chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) {
 544                 if (vif->type == NL80211_IFTYPE_STATION) {
 545                         /* ... relax constraints and disable rssi events */
 546                         iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 547                                             smps_mode);
 548                         iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
 549                                                     false);
 550                         iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 551                 }
 552                 return;
 553         }
 554
 555         bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
 556         if (bt_activity_grading >= BT_HIGH_TRAFFIC)
 557                 smps_mode = IEEE80211_SMPS_STATIC;
 558         else if (bt_activity_grading >= BT_LOW_TRAFFIC)
 559                 smps_mode = IEEE80211_SMPS_DYNAMIC;
 560
 561         /* relax SMPS constraints for next association */
 562         if (!vif->bss_conf.assoc)
 563                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 564
 565         if (mvmvif->phy_ctxt &&
 566             IWL_COEX_IS_RRC_ON(mvm->last_bt_notif.ttc_rrc_status,
 567                                mvmvif->phy_ctxt->id))
 568                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 569
 570         IWL_DEBUG_COEX(data->mvm,
 571                        "mac %d: bt_activity_grading %d smps_req %d\n",
 572                        mvmvif->id, bt_activity_grading, smps_mode);
 573
 574         if (vif->type == NL80211_IFTYPE_STATION)
 575                 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 576                                     smps_mode);
 577
 578         /* low latency is always primary */
 579         if (iwl_mvm_vif_low_latency(mvmvif)) {
 580                 data->primary_ll = true;
 581
 582                 data->secondary = data->primary;
 583                 data->primary = chanctx_conf;
 584         }
 585
 586         if (vif->type == NL80211_IFTYPE_AP) {
 587                 if (!mvmvif->ap_ibss_active)
 588                         return;
 589
 590                 if (chanctx_conf == data->primary)
 591                         return;
 592
 593                 if (!data->primary_ll) {
 594                         /*
 595                          * downgrade the current primary no matter what its
 596                          * type is.
 597                          */
 598                         data->secondary = data->primary;
 599                         data->primary = chanctx_conf;
 600                 } else {
 601                         /* there is low latency vif - we will be secondary */
 602                         data->secondary = chanctx_conf;
 603                 }
 604                 return;
 605         }
 606
 607         /*
 608          * STA / P2P Client, try to be primary if first vif. If we are in low
 609          * latency mode, we are already in primary and just don't do much
 610          */
 611         if (!data->primary || data->primary == chanctx_conf)
 612                 data->primary = chanctx_conf;
 613         else if (!data->secondary)
 614                 /* if secondary is not NULL, it might be a GO */
 615                 data->secondary = chanctx_conf;
 616
 617         /*
 618          * don't reduce the Tx power if one of these is true:
 619          *  we are in LOOSE
 620          *  single share antenna product
 621          *  BT is active
 622          *  we are associated
 623          */
 624         if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
 625             mvm->cfg->bt_shared_single_ant || !vif->bss_conf.assoc ||
 626             le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF) {
 627                 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false);
 628                 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 629                 return;
 630         }
 631
 632         /* try to get the avg rssi from fw */
 633         ave_rssi = mvmvif->bf_data.ave_beacon_signal;
 634
 635         /* if the RSSI isn't valid, fake it is very low */
 636         if (!ave_rssi)
 637                 ave_rssi = -100;
 638         if (ave_rssi > -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH) {
 639                 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true))
 640                         IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 641         } else if (ave_rssi < -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH) {
 642                 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
 643                         IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 644         }
 645
 646         /* Begin to monitor the RSSI: it may influence the reduced Tx power */
 647         iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
 648 }
 649
 650 static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
 651 {
 652         struct iwl_bt_iterator_data data = {
 653                 .mvm = mvm,
 654                 .notif = &mvm->last_bt_notif,
 655         };
 656         struct iwl_bt_coex_ci_cmd cmd = {};
 657         u8 ci_bw_idx;
 658
 659         /* Ignore updates if we are in force mode */
 660         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
 661                 return;
 662
 663         rcu_read_lock();
 664         ieee80211_iterate_active_interfaces_atomic(
 665                                         mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 666                                         iwl_mvm_bt_notif_iterator, &data);
 667
 668         if (data.primary) {
 669                 struct ieee80211_chanctx_conf *chan = data.primary;
 670                 if (WARN_ON(!chan->def.chan)) {
 671                         rcu_read_unlock();
 672                         return;
 673                 }
 674
 675                 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
 676                         ci_bw_idx = 0;
 677                 } else {
 678                         if (chan->def.center_freq1 >
 679                             chan->def.chan->center_freq)
 680                                 ci_bw_idx = 2;
 681                         else
 682                                 ci_bw_idx = 1;
 683                 }
 684
 685                 cmd.bt_primary_ci =
 686                         iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
 687                 cmd.primary_ch_phy_id =
 688                         cpu_to_le32(*((u16 *)data.primary->drv_priv));
 689         }
 690
 691         if (data.secondary) {
 692                 struct ieee80211_chanctx_conf *chan = data.secondary;
 693                 if (WARN_ON(!data.secondary->def.chan)) {
 694                         rcu_read_unlock();
 695                         return;
 696                 }
 697
 698                 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
 699                         ci_bw_idx = 0;
 700                 } else {
 701                         if (chan->def.center_freq1 >
 702                             chan->def.chan->center_freq)
 703                                 ci_bw_idx = 2;
 704                         else
 705                                 ci_bw_idx = 1;
 706                 }
 707
 708                 cmd.bt_secondary_ci =
 709                         iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
 710                 cmd.secondary_ch_phy_id =
 711                         cpu_to_le32(*((u16 *)data.secondary->drv_priv));
 712         }
 713
 714         rcu_read_unlock();
 715
 716         /* Don't spam the fw with the same command over and over */
 717         if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) {
 718                 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0,
 719                                          sizeof(cmd), &cmd))
 720                         IWL_ERR(mvm, "Failed to send BT_CI cmd\n");
 721                 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd));
 722         }
 723 }
 724
 725 void iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
 726                               struct iwl_rx_cmd_buffer *rxb)
 727 {
 728         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 729         struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data;
 730
 731         if (!fw_has_api(&mvm->fw->ucode_capa,
 732                         IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
 733                 iwl_mvm_rx_bt_coex_notif_old(mvm, rxb);
 734                 return;
 735         }
 736
 737         IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
 738         IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
 739         IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
 740                        le32_to_cpu(notif->primary_ch_lut));
 741         IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
 742                        le32_to_cpu(notif->secondary_ch_lut));
 743         IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
 744                        le32_to_cpu(notif->bt_activity_grading));
 745
 746         /* remember this notification for future use: rssi fluctuations */
 747         memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif));
 748
 749         iwl_mvm_bt_coex_notif_handle(mvm);
 750 }
 751
 752 void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 753                            enum ieee80211_rssi_event_data rssi_event)
 754 {
 755         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 756         int ret;
 757
 758         if (!fw_has_api(&mvm->fw->ucode_capa,
 759                         IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
 760                 iwl_mvm_bt_rssi_event_old(mvm, vif, rssi_event);
 761                 return;
 762         }
 763
 764         lockdep_assert_held(&mvm->mutex);
 765
 766         /* Ignore updates if we are in force mode */
 767         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
 768                 return;
 769
 770         /*
 771          * Rssi update while not associated - can happen since the statistics
 772          * are handled asynchronously
 773          */
 774         if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
 775                 return;
 776
 777         /* No BT - reports should be disabled */
 778         if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF)
 779                 return;
 780
 781         IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
 782                        rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
 783
 784         /*
 785          * Check if rssi is good enough for reduced Tx power, but not in loose
 786          * scheme.
 787          */
 788         if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
 789             iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
 790                 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
 791                                                   false);
 792         else
 793                 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true);
 794
 795         if (ret)
 796                 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
 797 }
 798
 799 #define LINK_QUAL_AGG_TIME_LIMIT_DEF    (4000)
 800 #define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
 801
 802 u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm,
 803                                 struct ieee80211_sta *sta)
 804 {
 805         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
 806         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
 807         struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->phy_ctxt;
 808         enum iwl_bt_coex_lut_type lut_type;
 809
 810         if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_BT_COEX_SPLIT))
 811                 return iwl_mvm_coex_agg_time_limit_old(mvm, sta);
 812
 813         if (IWL_COEX_IS_TTC_ON(mvm->last_bt_notif.ttc_rrc_status, phy_ctxt->id))
 814                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
 815
 816         if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
 817             BT_HIGH_TRAFFIC)
 818                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
 819
 820         lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
 821
 822         if (lut_type == BT_COEX_LOOSE_LUT || lut_type == BT_COEX_INVALID_LUT)
 823                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
 824
 825         /* tight coex, high bt traffic, reduce AGG time limit */
 826         return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
 827 }
 828
 829 bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
 830                                      struct ieee80211_sta *sta)
 831 {
 832         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
 833         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
 834         struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->phy_ctxt;
 835         enum iwl_bt_coex_lut_type lut_type;
 836
 837         if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_BT_COEX_SPLIT))
 838                 return iwl_mvm_bt_coex_is_mimo_allowed_old(mvm, sta);
 839
 840         if (IWL_COEX_IS_TTC_ON(mvm->last_bt_notif.ttc_rrc_status, phy_ctxt->id))
 841                 return true;
 842
 843         if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
 844             BT_HIGH_TRAFFIC)
 845                 return true;
 846
 847         /*
 848          * In Tight / TxTxDis, BT can't Rx while we Tx, so use both antennas
 849          * since BT is already killed.
 850          * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while
 851          * we Tx.
 852          * When we are in 5GHz, we'll get BT_COEX_INVALID_LUT allowing MIMO.
 853          */
 854         lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
 855         return lut_type != BT_COEX_LOOSE_LUT;
 856 }
 857
 858 bool iwl_mvm_bt_coex_is_ant_avail(struct iwl_mvm *mvm, u8 ant)
 859 {
 860         /* there is no other antenna, shared antenna is always available */
 861         if (mvm->cfg->bt_shared_single_ant)
 862                 return true;
 863
 864         if (ant & mvm->cfg->non_shared_ant)
 865                 return true;
 866
 867         if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_BT_COEX_SPLIT))
 868                 return iwl_mvm_bt_coex_is_shared_ant_avail_old(mvm);
 869
 870         return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
 871                 BT_HIGH_TRAFFIC;
 872 }
 873
 874 bool iwl_mvm_bt_coex_is_shared_ant_avail(struct iwl_mvm *mvm)
 875 {
 876         /* there is no other antenna, shared antenna is always available */
 877         if (mvm->cfg->bt_shared_single_ant)
 878                 return true;
 879
 880         if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_BT_COEX_SPLIT))
 881                 return iwl_mvm_bt_coex_is_shared_ant_avail_old(mvm);
 882
 883         return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < BT_HIGH_TRAFFIC;
 884 }
 885
 886 bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm,
 887                                     enum ieee80211_band band)
 888 {
 889         u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading);
 890
 891         if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_BT_COEX_SPLIT))
 892                 return iwl_mvm_bt_coex_is_tpc_allowed_old(mvm, band);
 893
 894         if (band != IEEE80211_BAND_2GHZ)
 895                 return false;
 896
 897         return bt_activity >= BT_LOW_TRAFFIC;
 898 }
 899
 900 u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
 901                            struct ieee80211_tx_info *info, u8 ac)
 902 {
 903         __le16 fc = hdr->frame_control;
 904         bool mplut_enabled = iwl_mvm_is_mplut_supported(mvm);
 905
 906         if (info->band != IEEE80211_BAND_2GHZ)
 907                 return 0;
 908
 909         if (unlikely(mvm->bt_tx_prio))
 910                 return mvm->bt_tx_prio - 1;
 911
 912         if (likely(ieee80211_is_data(fc))) {
 913                 if (likely(ieee80211_is_data_qos(fc))) {
 914                         switch (ac) {
 915                         case IEEE80211_AC_BE:
 916                                 return mplut_enabled ? 1 : 0;
 917                         case IEEE80211_AC_VI:
 918                                 return mplut_enabled ? 2 : 3;
 919                         case IEEE80211_AC_VO:
 920                                 return 3;
 921                         default:
 922                                 return 0;
 923                         }
 924                 } else if (is_multicast_ether_addr(hdr->addr1)) {
 925                         return 3;
 926                 } else
 927                         return 0;
 928         } else if (ieee80211_is_mgmt(fc)) {
 929                 return ieee80211_is_disassoc(fc) ? 0 : 3;
 930         } else if (ieee80211_is_ctl(fc)) {
 931                 /* ignore cfend and cfendack frames as we never send those */
 932                 return 3;
 933         }
 934
 935         return 0;
 936 }
 937
 938 void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm)
 939 {
 940         if (!fw_has_api(&mvm->fw->ucode_capa,
 941                         IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
 942                 iwl_mvm_bt_coex_vif_change_old(mvm);
 943                 return;
 944         }
 945
 946         iwl_mvm_bt_coex_notif_handle(mvm);
 947 }
 948
 949 void iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm,
 950                                    struct iwl_rx_cmd_buffer *rxb)
 951 {
 952         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 953         u32 ant_isolation = le32_to_cpup((void *)pkt->data);
 954         struct iwl_bt_coex_corun_lut_update_cmd cmd = {};
 955         u8 __maybe_unused lower_bound, upper_bound;
 956         u8 lut;
 957
 958         if (!fw_has_api(&mvm->fw->ucode_capa,
 959                         IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
 960                 iwl_mvm_rx_ant_coupling_notif_old(mvm, rxb);
 961                 return;
 962         }
 963
 964         if (!iwl_mvm_bt_is_plcr_supported(mvm))
 965                 return;
 966
 967         lockdep_assert_held(&mvm->mutex);
 968
 969         /* Ignore updates if we are in force mode */
 970         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
 971                 return;
 972
 973         if (ant_isolation ==  mvm->last_ant_isol)
 974                 return;
 975
 976         for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++)
 977                 if (ant_isolation < antenna_coupling_ranges[lut + 1].range)
 978                         break;
 979
 980         lower_bound = antenna_coupling_ranges[lut].range;
 981
 982         if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1)
 983                 upper_bound = antenna_coupling_ranges[lut + 1].range;
 984         else
 985                 upper_bound = antenna_coupling_ranges[lut].range;
 986
 987         IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n",
 988                        ant_isolation, lower_bound, upper_bound, lut);
 989
 990         mvm->last_ant_isol = ant_isolation;
 991
 992         if (mvm->last_corun_lut == lut)
 993                 return;
 994
 995         mvm->last_corun_lut = lut;
 996
 997         /* For the moment, use the same LUT for 20GHz and 40GHz */
 998         memcpy(&cmd.corun_lut20, antenna_coupling_ranges[lut].lut20,
 999                sizeof(cmd.corun_lut20));
1000
1001         memcpy(&cmd.corun_lut40, antenna_coupling_ranges[lut].lut20,
1002                sizeof(cmd.corun_lut40));
1003
1004         if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_CORUN_LUT, 0,
1005                                  sizeof(cmd), &cmd))
1006                 IWL_ERR(mvm,
1007                         "failed to send BT_COEX_UPDATE_CORUN_LUT command\n");
1008 }