drivers/net/wireless/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 - 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 /* 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         struct iwl_host_cmd cmd = {
 413                 .id = BT_CONFIG,
 414                 .len = { sizeof(*bt_cmd), },
 415                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 416         };
 417         int ret;
 418         u32 mode;
 419
 420         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
 421                 return iwl_send_bt_init_conf_old(mvm);
 422
 423         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
 424         if (!bt_cmd)
 425                 return -ENOMEM;
 426         cmd.data[0] = bt_cmd;
 427
 428         lockdep_assert_held(&mvm->mutex);
 429
 430         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) {
 431                 switch (mvm->bt_force_ant_mode) {
 432                 case BT_FORCE_ANT_BT:
 433                         mode = BT_COEX_BT;
 434                         break;
 435                 case BT_FORCE_ANT_WIFI:
 436                         mode = BT_COEX_WIFI;
 437                         break;
 438                 default:
 439                         WARN_ON(1);
 440                         mode = 0;
 441                 }
 442
 443                 bt_cmd->mode = cpu_to_le32(mode);
 444                 goto send_cmd;
 445         }
 446
 447         mode = iwlwifi_mod_params.bt_coex_active ? BT_COEX_NW : BT_COEX_DISABLE;
 448         bt_cmd->mode = cpu_to_le32(mode);
 449
 450         if (IWL_MVM_BT_COEX_SYNC2SCO)
 451                 bt_cmd->enabled_modules |=
 452                         cpu_to_le32(BT_COEX_SYNC2SCO_ENABLED);
 453
 454         if (iwl_mvm_bt_is_plcr_supported(mvm))
 455                 bt_cmd->enabled_modules |= cpu_to_le32(BT_COEX_CORUN_ENABLED);
 456
 457         if (IWL_MVM_BT_COEX_MPLUT) {
 458                 bt_cmd->enabled_modules |= cpu_to_le32(BT_COEX_MPLUT_ENABLED);
 459                 bt_cmd->enabled_modules |=
 460                         cpu_to_le32(BT_COEX_MPLUT_BOOST_ENABLED);
 461         }
 462
 463         bt_cmd->enabled_modules |= cpu_to_le32(BT_COEX_HIGH_BAND_RET);
 464
 465 send_cmd:
 466         memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
 467         memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
 468
 469         ret = iwl_mvm_send_cmd(mvm, &cmd);
 470
 471         kfree(bt_cmd);
 472         return ret;
 473 }
 474
 475 static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
 476                                        bool enable)
 477 {
 478         struct iwl_bt_coex_reduced_txp_update_cmd cmd = {};
 479         struct iwl_mvm_sta *mvmsta;
 480         u32 value;
 481         int ret;
 482
 483         mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
 484         if (!mvmsta)
 485                 return 0;
 486
 487         /* nothing to do */
 488         if (mvmsta->bt_reduced_txpower == enable)
 489                 return 0;
 490
 491         value = mvmsta->sta_id;
 492
 493         if (enable)
 494                 value |= BT_REDUCED_TX_POWER_BIT;
 495
 496         IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
 497                        enable ? "en" : "dis", sta_id);
 498
 499         cmd.reduced_txp = cpu_to_le32(value);
 500         mvmsta->bt_reduced_txpower = enable;
 501
 502         ret = iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_REDUCED_TXP, CMD_ASYNC,
 503                                    sizeof(cmd), &cmd);
 504
 505         return ret;
 506 }
 507
 508 struct iwl_bt_iterator_data {
 509         struct iwl_bt_coex_profile_notif *notif;
 510         struct iwl_mvm *mvm;
 511         struct ieee80211_chanctx_conf *primary;
 512         struct ieee80211_chanctx_conf *secondary;
 513         bool primary_ll;
 514 };
 515
 516 static inline
 517 void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
 518                                        struct ieee80211_vif *vif,
 519                                        bool enable, int rssi)
 520 {
 521         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 522
 523         mvmvif->bf_data.last_bt_coex_event = rssi;
 524         mvmvif->bf_data.bt_coex_max_thold =
 525                 enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0;
 526         mvmvif->bf_data.bt_coex_min_thold =
 527                 enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0;
 528 }
 529
 530 /* must be called under rcu_read_lock */
 531 static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 532                                       struct ieee80211_vif *vif)
 533 {
 534         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 535         struct iwl_bt_iterator_data *data = _data;
 536         struct iwl_mvm *mvm = data->mvm;
 537         struct ieee80211_chanctx_conf *chanctx_conf;
 538         /* default smps_mode is AUTOMATIC - only used for client modes */
 539         enum ieee80211_smps_mode smps_mode = IEEE80211_SMPS_AUTOMATIC;
 540         u32 bt_activity_grading;
 541         int ave_rssi;
 542
 543         lockdep_assert_held(&mvm->mutex);
 544
 545         switch (vif->type) {
 546         case NL80211_IFTYPE_STATION:
 547                 break;
 548         case NL80211_IFTYPE_AP:
 549                 if (!mvmvif->ap_ibss_active)
 550                         return;
 551                 break;
 552         default:
 553                 return;
 554         }
 555
 556         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 557
 558         /* If channel context is invalid or not on 2.4GHz .. */
 559         if ((!chanctx_conf ||
 560              chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) {
 561                 if (vif->type == NL80211_IFTYPE_STATION) {
 562                         /* ... relax constraints and disable rssi events */
 563                         iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 564                                             smps_mode);
 565                         iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
 566                                                     false);
 567                         iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 568                 }
 569                 return;
 570         }
 571
 572         bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
 573         if (bt_activity_grading >= BT_HIGH_TRAFFIC)
 574                 smps_mode = IEEE80211_SMPS_STATIC;
 575         else if (bt_activity_grading >= BT_LOW_TRAFFIC)
 576                 smps_mode = IEEE80211_SMPS_DYNAMIC;
 577
 578         /* relax SMPS constraints for next association */
 579         if (!vif->bss_conf.assoc)
 580                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 581
 582         if (IWL_COEX_IS_RRC_ON(mvm->last_bt_notif.ttc_rrc_status,
 583                                mvmvif->phy_ctxt->id))
 584                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 585
 586         IWL_DEBUG_COEX(data->mvm,
 587                        "mac %d: bt_activity_grading %d smps_req %d\n",
 588                        mvmvif->id, bt_activity_grading, smps_mode);
 589
 590         if (vif->type == NL80211_IFTYPE_STATION)
 591                 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 592                                     smps_mode);
 593
 594         /* low latency is always primary */
 595         if (iwl_mvm_vif_low_latency(mvmvif)) {
 596                 data->primary_ll = true;
 597
 598                 data->secondary = data->primary;
 599                 data->primary = chanctx_conf;
 600         }
 601
 602         if (vif->type == NL80211_IFTYPE_AP) {
 603                 if (!mvmvif->ap_ibss_active)
 604                         return;
 605
 606                 if (chanctx_conf == data->primary)
 607                         return;
 608
 609                 if (!data->primary_ll) {
 610                         /*
 611                          * downgrade the current primary no matter what its
 612                          * type is.
 613                          */
 614                         data->secondary = data->primary;
 615                         data->primary = chanctx_conf;
 616                 } else {
 617                         /* there is low latency vif - we will be secondary */
 618                         data->secondary = chanctx_conf;
 619                 }
 620                 return;
 621         }
 622
 623         /*
 624          * STA / P2P Client, try to be primary if first vif. If we are in low
 625          * latency mode, we are already in primary and just don't do much
 626          */
 627         if (!data->primary || data->primary == chanctx_conf)
 628                 data->primary = chanctx_conf;
 629         else if (!data->secondary)
 630                 /* if secondary is not NULL, it might be a GO */
 631                 data->secondary = chanctx_conf;
 632
 633         /*
 634          * don't reduce the Tx power if one of these is true:
 635          *  we are in LOOSE
 636          *  single share antenna product
 637          *  BT is active
 638          *  we are associated
 639          */
 640         if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
 641             mvm->cfg->bt_shared_single_ant || !vif->bss_conf.assoc ||
 642             le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF) {
 643                 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false);
 644                 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 645                 return;
 646         }
 647
 648         /* try to get the avg rssi from fw */
 649         ave_rssi = mvmvif->bf_data.ave_beacon_signal;
 650
 651         /* if the RSSI isn't valid, fake it is very low */
 652         if (!ave_rssi)
 653                 ave_rssi = -100;
 654         if (ave_rssi > -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH) {
 655                 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true))
 656                         IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 657         } else if (ave_rssi < -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH) {
 658                 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
 659                         IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 660         }
 661
 662         /* Begin to monitor the RSSI: it may influence the reduced Tx power */
 663         iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
 664 }
 665
 666 static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
 667 {
 668         struct iwl_bt_iterator_data data = {
 669                 .mvm = mvm,
 670                 .notif = &mvm->last_bt_notif,
 671         };
 672         struct iwl_bt_coex_ci_cmd cmd = {};
 673         u8 ci_bw_idx;
 674
 675         /* Ignore updates if we are in force mode */
 676         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
 677                 return;
 678
 679         rcu_read_lock();
 680         ieee80211_iterate_active_interfaces_atomic(
 681                                         mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 682                                         iwl_mvm_bt_notif_iterator, &data);
 683
 684         if (data.primary) {
 685                 struct ieee80211_chanctx_conf *chan = data.primary;
 686                 if (WARN_ON(!chan->def.chan)) {
 687                         rcu_read_unlock();
 688                         return;
 689                 }
 690
 691                 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
 692                         ci_bw_idx = 0;
 693                 } else {
 694                         if (chan->def.center_freq1 >
 695                             chan->def.chan->center_freq)
 696                                 ci_bw_idx = 2;
 697                         else
 698                                 ci_bw_idx = 1;
 699                 }
 700
 701                 cmd.bt_primary_ci =
 702                         iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
 703                 cmd.primary_ch_phy_id =
 704                         cpu_to_le32(*((u16 *)data.primary->drv_priv));
 705         }
 706
 707         if (data.secondary) {
 708                 struct ieee80211_chanctx_conf *chan = data.secondary;
 709                 if (WARN_ON(!data.secondary->def.chan)) {
 710                         rcu_read_unlock();
 711                         return;
 712                 }
 713
 714                 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
 715                         ci_bw_idx = 0;
 716                 } else {
 717                         if (chan->def.center_freq1 >
 718                             chan->def.chan->center_freq)
 719                                 ci_bw_idx = 2;
 720                         else
 721                                 ci_bw_idx = 1;
 722                 }
 723
 724                 cmd.bt_secondary_ci =
 725                         iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
 726                 cmd.secondary_ch_phy_id =
 727                         cpu_to_le32(*((u16 *)data.secondary->drv_priv));
 728         }
 729
 730         rcu_read_unlock();
 731
 732         /* Don't spam the fw with the same command over and over */
 733         if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) {
 734                 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0,
 735                                          sizeof(cmd), &cmd))
 736                         IWL_ERR(mvm, "Failed to send BT_CI cmd\n");
 737                 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd));
 738         }
 739 }
 740
 741 int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
 742                              struct iwl_rx_cmd_buffer *rxb,
 743                              struct iwl_device_cmd *dev_cmd)
 744 {
 745         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 746         struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data;
 747
 748         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
 749                 return iwl_mvm_rx_bt_coex_notif_old(mvm, rxb, dev_cmd);
 750
 751         IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
 752         IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
 753         IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
 754                        le32_to_cpu(notif->primary_ch_lut));
 755         IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
 756                        le32_to_cpu(notif->secondary_ch_lut));
 757         IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
 758                        le32_to_cpu(notif->bt_activity_grading));
 759
 760         /* remember this notification for future use: rssi fluctuations */
 761         memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif));
 762
 763         iwl_mvm_bt_coex_notif_handle(mvm);
 764
 765         /*
 766          * This is an async handler for a notification, returning anything other
 767          * than 0 doesn't make sense even if HCMD failed.
 768          */
 769         return 0;
 770 }
 771
 772 static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
 773                                    struct ieee80211_vif *vif)
 774 {
 775         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 776         struct iwl_bt_iterator_data *data = _data;
 777         struct iwl_mvm *mvm = data->mvm;
 778
 779         struct ieee80211_sta *sta;
 780         struct iwl_mvm_sta *mvmsta;
 781
 782         struct ieee80211_chanctx_conf *chanctx_conf;
 783
 784         rcu_read_lock();
 785         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 786         /* If channel context is invalid or not on 2.4GHz - don't count it */
 787         if (!chanctx_conf ||
 788             chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
 789                 rcu_read_unlock();
 790                 return;
 791         }
 792         rcu_read_unlock();
 793
 794         if (vif->type != NL80211_IFTYPE_STATION ||
 795             mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
 796                 return;
 797
 798         sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
 799                                         lockdep_is_held(&mvm->mutex));
 800
 801         /* This can happen if the station has been removed right now */
 802         if (IS_ERR_OR_NULL(sta))
 803                 return;
 804
 805         mvmsta = iwl_mvm_sta_from_mac80211(sta);
 806 }
 807
 808 void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 809                            enum ieee80211_rssi_event rssi_event)
 810 {
 811         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 812         struct iwl_bt_iterator_data data = {
 813                 .mvm = mvm,
 814         };
 815         int ret;
 816
 817         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
 818                 iwl_mvm_bt_rssi_event_old(mvm, vif, rssi_event);
 819                 return;
 820         }
 821
 822         lockdep_assert_held(&mvm->mutex);
 823
 824         /* Ignore updates if we are in force mode */
 825         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
 826                 return;
 827
 828         /*
 829          * Rssi update while not associated - can happen since the statistics
 830          * are handled asynchronously
 831          */
 832         if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
 833                 return;
 834
 835         /* No BT - reports should be disabled */
 836         if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF)
 837                 return;
 838
 839         IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
 840                        rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
 841
 842         /*
 843          * Check if rssi is good enough for reduced Tx power, but not in loose
 844          * scheme.
 845          */
 846         if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
 847             iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
 848                 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
 849                                                   false);
 850         else
 851                 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true);
 852
 853         if (ret)
 854                 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
 855
 856         ieee80211_iterate_active_interfaces_atomic(
 857                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 858                 iwl_mvm_bt_rssi_iterator, &data);
 859 }
 860
 861 #define LINK_QUAL_AGG_TIME_LIMIT_DEF    (4000)
 862 #define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
 863
 864 u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm,
 865                                 struct ieee80211_sta *sta)
 866 {
 867         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
 868         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
 869         struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->phy_ctxt;
 870         enum iwl_bt_coex_lut_type lut_type;
 871
 872         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
 873                 return iwl_mvm_coex_agg_time_limit_old(mvm, sta);
 874
 875         if (IWL_COEX_IS_TTC_ON(mvm->last_bt_notif.ttc_rrc_status, phy_ctxt->id))
 876                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
 877
 878         if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
 879             BT_HIGH_TRAFFIC)
 880                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
 881
 882         lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
 883
 884         if (lut_type == BT_COEX_LOOSE_LUT || lut_type == BT_COEX_INVALID_LUT)
 885                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
 886
 887         /* tight coex, high bt traffic, reduce AGG time limit */
 888         return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
 889 }
 890
 891 bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
 892                                      struct ieee80211_sta *sta)
 893 {
 894         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
 895         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
 896         struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->phy_ctxt;
 897         enum iwl_bt_coex_lut_type lut_type;
 898
 899         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
 900                 return iwl_mvm_bt_coex_is_mimo_allowed_old(mvm, sta);
 901
 902         if (IWL_COEX_IS_TTC_ON(mvm->last_bt_notif.ttc_rrc_status, phy_ctxt->id))
 903                 return true;
 904
 905         if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
 906             BT_HIGH_TRAFFIC)
 907                 return true;
 908
 909         /*
 910          * In Tight / TxTxDis, BT can't Rx while we Tx, so use both antennas
 911          * since BT is already killed.
 912          * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while
 913          * we Tx.
 914          * When we are in 5GHz, we'll get BT_COEX_INVALID_LUT allowing MIMO.
 915          */
 916         lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
 917         return lut_type != BT_COEX_LOOSE_LUT;
 918 }
 919
 920 bool iwl_mvm_bt_coex_is_ant_avail(struct iwl_mvm *mvm, u8 ant)
 921 {
 922         /* there is no other antenna, shared antenna is always available */
 923         if (mvm->cfg->bt_shared_single_ant)
 924                 return true;
 925
 926         if (ant & mvm->cfg->non_shared_ant)
 927                 return true;
 928
 929         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
 930                 return iwl_mvm_bt_coex_is_shared_ant_avail_old(mvm);
 931
 932         return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
 933                 BT_HIGH_TRAFFIC;
 934 }
 935
 936 bool iwl_mvm_bt_coex_is_shared_ant_avail(struct iwl_mvm *mvm)
 937 {
 938         /* there is no other antenna, shared antenna is always available */
 939         if (mvm->cfg->bt_shared_single_ant)
 940                 return true;
 941
 942         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
 943                 return iwl_mvm_bt_coex_is_shared_ant_avail_old(mvm);
 944
 945         return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF;
 946 }
 947
 948 bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm,
 949                                     enum ieee80211_band band)
 950 {
 951         u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading);
 952
 953         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
 954                 return iwl_mvm_bt_coex_is_tpc_allowed_old(mvm, band);
 955
 956         if (band != IEEE80211_BAND_2GHZ)
 957                 return false;
 958
 959         return bt_activity >= BT_LOW_TRAFFIC;
 960 }
 961
 962 u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
 963                            struct ieee80211_tx_info *info, u8 ac)
 964 {
 965         __le16 fc = hdr->frame_control;
 966
 967         if (info->band != IEEE80211_BAND_2GHZ)
 968                 return 0;
 969
 970         if (unlikely(mvm->bt_tx_prio))
 971                 return mvm->bt_tx_prio - 1;
 972
 973         /* High prio packet (wrt. BT coex) if it is EAPOL, MCAST or MGMT */
 974         if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO ||
 975              is_multicast_ether_addr(hdr->addr1) ||
 976              ieee80211_is_ctl(fc) || ieee80211_is_mgmt(fc) ||
 977              ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc))
 978                 return 3;
 979
 980         switch (ac) {
 981         case IEEE80211_AC_BE:
 982                 return 1;
 983         case IEEE80211_AC_VO:
 984                 return 3;
 985         case IEEE80211_AC_VI:
 986                 return 2;
 987         default:
 988                 break;
 989         }
 990
 991         return 0;
 992 }
 993
 994 void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm)
 995 {
 996         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
 997                 iwl_mvm_bt_coex_vif_change_old(mvm);
 998                 return;
 999         }
1000
1001         iwl_mvm_bt_coex_notif_handle(mvm);
1002 }
1003
1004 int iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm,
1005                                   struct iwl_rx_cmd_buffer *rxb,
1006                                   struct iwl_device_cmd *dev_cmd)
1007 {
1008         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1009         u32 ant_isolation = le32_to_cpup((void *)pkt->data);
1010         struct iwl_bt_coex_corun_lut_update_cmd cmd = {};
1011         u8 __maybe_unused lower_bound, upper_bound;
1012         u8 lut;
1013
1014         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
1015                 return iwl_mvm_rx_ant_coupling_notif_old(mvm, rxb, dev_cmd);
1016
1017         if (!iwl_mvm_bt_is_plcr_supported(mvm))
1018                 return 0;
1019
1020         lockdep_assert_held(&mvm->mutex);
1021
1022         /* Ignore updates if we are in force mode */
1023         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1024                 return 0;
1025
1026         if (ant_isolation ==  mvm->last_ant_isol)
1027                 return 0;
1028
1029         for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++)
1030                 if (ant_isolation < antenna_coupling_ranges[lut + 1].range)
1031                         break;
1032
1033         lower_bound = antenna_coupling_ranges[lut].range;
1034
1035         if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1)
1036                 upper_bound = antenna_coupling_ranges[lut + 1].range;
1037         else
1038                 upper_bound = antenna_coupling_ranges[lut].range;
1039
1040         IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n",
1041                        ant_isolation, lower_bound, upper_bound, lut);
1042
1043         mvm->last_ant_isol = ant_isolation;
1044
1045         if (mvm->last_corun_lut == lut)
1046                 return 0;
1047
1048         mvm->last_corun_lut = lut;
1049
1050         /* For the moment, use the same LUT for 20GHz and 40GHz */
1051         memcpy(&cmd.corun_lut20, antenna_coupling_ranges[lut].lut20,
1052                sizeof(cmd.corun_lut20));
1053
1054         memcpy(&cmd.corun_lut40, antenna_coupling_ranges[lut].lut20,
1055                sizeof(cmd.corun_lut40));
1056
1057         return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_CORUN_LUT, 0,
1058                                     sizeof(cmd), &cmd);
1059 }