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
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  29  *  Intel Linux Wireless <ilw@linux.intel.com>
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  31  *
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  33  *
  34  * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved.
  35  * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
  36  * All rights reserved.
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  39  * modification, are permitted provided that the following conditions
  40  * are met:
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  43  *    notice, this list of conditions and the following disclaimer.
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  45  *    notice, this list of conditions and the following disclaimer in
  46  *    the documentation and/or other materials provided with the
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  49  *    contributors may be used to endorse or promote products derived
  50  *    from this software without specific prior written permission.
  51  *
  52  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  53  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  54  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  55  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  56  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  57  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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  60  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  61  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  62  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  63  *
  64  *****************************************************************************/
  65
  66 #include <linux/ieee80211.h>
  67 #include <linux/etherdevice.h>
  68 #include <net/mac80211.h>
  69
  70 #include "fw-api-coex.h"
  71 #include "iwl-modparams.h"
  72 #include "mvm.h"
  73 #include "iwl-debug.h"
  74
  75 const u32 iwl_bt_ctl_kill_msk[BT_KILL_MSK_MAX] = {
  76         [BT_KILL_MSK_DEFAULT] = 0xfffffc00,
  77         [BT_KILL_MSK_NEVER] = 0xffffffff,
  78         [BT_KILL_MSK_ALWAYS] = 0,
  79 };
  80
  81 const u8 iwl_bt_cts_kill_msk[BT_MAX_AG][BT_COEX_MAX_LUT] = {
  82         {
  83                 BT_KILL_MSK_ALWAYS,
  84                 BT_KILL_MSK_ALWAYS,
  85                 BT_KILL_MSK_ALWAYS,
  86         },
  87         {
  88                 BT_KILL_MSK_NEVER,
  89                 BT_KILL_MSK_NEVER,
  90                 BT_KILL_MSK_NEVER,
  91         },
  92         {
  93                 BT_KILL_MSK_NEVER,
  94                 BT_KILL_MSK_NEVER,
  95                 BT_KILL_MSK_NEVER,
  96         },
  97         {
  98                 BT_KILL_MSK_DEFAULT,
  99                 BT_KILL_MSK_NEVER,
 100                 BT_KILL_MSK_DEFAULT,
 101         },
 102 };
 103
 104 const u8 iwl_bt_ack_kill_msk[BT_MAX_AG][BT_COEX_MAX_LUT] = {
 105         {
 106                 BT_KILL_MSK_ALWAYS,
 107                 BT_KILL_MSK_ALWAYS,
 108                 BT_KILL_MSK_ALWAYS,
 109         },
 110         {
 111                 BT_KILL_MSK_ALWAYS,
 112                 BT_KILL_MSK_ALWAYS,
 113                 BT_KILL_MSK_ALWAYS,
 114         },
 115         {
 116                 BT_KILL_MSK_ALWAYS,
 117                 BT_KILL_MSK_ALWAYS,
 118                 BT_KILL_MSK_ALWAYS,
 119         },
 120         {
 121                 BT_KILL_MSK_DEFAULT,
 122                 BT_KILL_MSK_ALWAYS,
 123                 BT_KILL_MSK_DEFAULT,
 124         },
 125 };
 126
 127 static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = {
 128         cpu_to_le32(0xf0f0f0f0), /* 50% */
 129         cpu_to_le32(0xc0c0c0c0), /* 25% */
 130         cpu_to_le32(0xfcfcfcfc), /* 75% */
 131         cpu_to_le32(0xfefefefe), /* 87.5% */
 132 };
 133
 134 static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
 135         {
 136                 cpu_to_le32(0x40000000),
 137                 cpu_to_le32(0x00000000),
 138                 cpu_to_le32(0x44000000),
 139                 cpu_to_le32(0x00000000),
 140                 cpu_to_le32(0x40000000),
 141                 cpu_to_le32(0x00000000),
 142                 cpu_to_le32(0x44000000),
 143                 cpu_to_le32(0x00000000),
 144                 cpu_to_le32(0xc0004000),
 145                 cpu_to_le32(0xf0005000),
 146                 cpu_to_le32(0xc0004000),
 147                 cpu_to_le32(0xf0005000),
 148         },
 149         {
 150                 cpu_to_le32(0x40000000),
 151                 cpu_to_le32(0x00000000),
 152                 cpu_to_le32(0x44000000),
 153                 cpu_to_le32(0x00000000),
 154                 cpu_to_le32(0x40000000),
 155                 cpu_to_le32(0x00000000),
 156                 cpu_to_le32(0x44000000),
 157                 cpu_to_le32(0x00000000),
 158                 cpu_to_le32(0xc0004000),
 159                 cpu_to_le32(0xf0005000),
 160                 cpu_to_le32(0xc0004000),
 161                 cpu_to_le32(0xf0005000),
 162         },
 163         {
 164                 cpu_to_le32(0x40000000),
 165                 cpu_to_le32(0x00000000),
 166                 cpu_to_le32(0x44000000),
 167                 cpu_to_le32(0x00000000),
 168                 cpu_to_le32(0x40000000),
 169                 cpu_to_le32(0x00000000),
 170                 cpu_to_le32(0x44000000),
 171                 cpu_to_le32(0x00000000),
 172                 cpu_to_le32(0xc0004000),
 173                 cpu_to_le32(0xf0005000),
 174                 cpu_to_le32(0xc0004000),
 175                 cpu_to_le32(0xf0005000),
 176         },
 177 };
 178
 179 static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
 180         {
 181                 /* Tight */
 182                 cpu_to_le32(0xaaaaaaaa),
 183                 cpu_to_le32(0xaaaaaaaa),
 184                 cpu_to_le32(0xaeaaaaaa),
 185                 cpu_to_le32(0xaaaaaaaa),
 186                 cpu_to_le32(0xcc00ff28),
 187                 cpu_to_le32(0x0000aaaa),
 188                 cpu_to_le32(0xcc00aaaa),
 189                 cpu_to_le32(0x0000aaaa),
 190                 cpu_to_le32(0xc0004000),
 191                 cpu_to_le32(0x00004000),
 192                 cpu_to_le32(0xf0005000),
 193                 cpu_to_le32(0xf0005000),
 194         },
 195         {
 196                 /* Loose */
 197                 cpu_to_le32(0xaaaaaaaa),
 198                 cpu_to_le32(0xaaaaaaaa),
 199                 cpu_to_le32(0xaaaaaaaa),
 200                 cpu_to_le32(0xaaaaaaaa),
 201                 cpu_to_le32(0xcc00ff28),
 202                 cpu_to_le32(0x0000aaaa),
 203                 cpu_to_le32(0xcc00aaaa),
 204                 cpu_to_le32(0x0000aaaa),
 205                 cpu_to_le32(0x00000000),
 206                 cpu_to_le32(0x00000000),
 207                 cpu_to_le32(0xf0005000),
 208                 cpu_to_le32(0xf0005000),
 209         },
 210         {
 211                 /* Tx Tx disabled */
 212                 cpu_to_le32(0xaaaaaaaa),
 213                 cpu_to_le32(0xaaaaaaaa),
 214                 cpu_to_le32(0xeeaaaaaa),
 215                 cpu_to_le32(0xaaaaaaaa),
 216                 cpu_to_le32(0xcc00ff28),
 217                 cpu_to_le32(0x0000aaaa),
 218                 cpu_to_le32(0xcc00aaaa),
 219                 cpu_to_le32(0x0000aaaa),
 220                 cpu_to_le32(0xc0004000),
 221                 cpu_to_le32(0xc0004000),
 222                 cpu_to_le32(0xf0005000),
 223                 cpu_to_le32(0xf0005000),
 224         },
 225 };
 226
 227 /* 20MHz / 40MHz below / 40Mhz above*/
 228 static const __le64 iwl_ci_mask[][3] = {
 229         /* dummy entry for channel 0 */
 230         {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
 231         {
 232                 cpu_to_le64(0x0000001FFFULL),
 233                 cpu_to_le64(0x0ULL),
 234                 cpu_to_le64(0x00007FFFFFULL),
 235         },
 236         {
 237                 cpu_to_le64(0x000000FFFFULL),
 238                 cpu_to_le64(0x0ULL),
 239                 cpu_to_le64(0x0003FFFFFFULL),
 240         },
 241         {
 242                 cpu_to_le64(0x000003FFFCULL),
 243                 cpu_to_le64(0x0ULL),
 244                 cpu_to_le64(0x000FFFFFFCULL),
 245         },
 246         {
 247                 cpu_to_le64(0x00001FFFE0ULL),
 248                 cpu_to_le64(0x0ULL),
 249                 cpu_to_le64(0x007FFFFFE0ULL),
 250         },
 251         {
 252                 cpu_to_le64(0x00007FFF80ULL),
 253                 cpu_to_le64(0x00007FFFFFULL),
 254                 cpu_to_le64(0x01FFFFFF80ULL),
 255         },
 256         {
 257                 cpu_to_le64(0x0003FFFC00ULL),
 258                 cpu_to_le64(0x0003FFFFFFULL),
 259                 cpu_to_le64(0x0FFFFFFC00ULL),
 260         },
 261         {
 262                 cpu_to_le64(0x000FFFF000ULL),
 263                 cpu_to_le64(0x000FFFFFFCULL),
 264                 cpu_to_le64(0x3FFFFFF000ULL),
 265         },
 266         {
 267                 cpu_to_le64(0x007FFF8000ULL),
 268                 cpu_to_le64(0x007FFFFFE0ULL),
 269                 cpu_to_le64(0xFFFFFF8000ULL),
 270         },
 271         {
 272                 cpu_to_le64(0x01FFFE0000ULL),
 273                 cpu_to_le64(0x01FFFFFF80ULL),
 274                 cpu_to_le64(0xFFFFFE0000ULL),
 275         },
 276         {
 277                 cpu_to_le64(0x0FFFF00000ULL),
 278                 cpu_to_le64(0x0FFFFFFC00ULL),
 279                 cpu_to_le64(0x0ULL),
 280         },
 281         {
 282                 cpu_to_le64(0x3FFFC00000ULL),
 283                 cpu_to_le64(0x3FFFFFF000ULL),
 284                 cpu_to_le64(0x0)
 285         },
 286         {
 287                 cpu_to_le64(0xFFFE000000ULL),
 288                 cpu_to_le64(0xFFFFFF8000ULL),
 289                 cpu_to_le64(0x0)
 290         },
 291         {
 292                 cpu_to_le64(0xFFF8000000ULL),
 293                 cpu_to_le64(0xFFFFFE0000ULL),
 294                 cpu_to_le64(0x0)
 295         },
 296         {
 297                 cpu_to_le64(0xFFC0000000ULL),
 298                 cpu_to_le64(0x0ULL),
 299                 cpu_to_le64(0x0ULL)
 300         },
 301 };
 302
 303 struct corunning_block_luts {
 304         u8 range;
 305         __le32 lut20[BT_COEX_CORUN_LUT_SIZE];
 306 };
 307
 308 /*
 309  * Ranges for the antenna coupling calibration / co-running block LUT:
 310  *              LUT0: [ 0, 12[
 311  *              LUT1: [12, 20[
 312  *              LUT2: [20, 21[
 313  *              LUT3: [21, 23[
 314  *              LUT4: [23, 27[
 315  *              LUT5: [27, 30[
 316  *              LUT6: [30, 32[
 317  *              LUT7: [32, 33[
 318  *              LUT8: [33, - [
 319  */
 320 static const struct corunning_block_luts antenna_coupling_ranges[] = {
 321         {
 322                 .range = 0,
 323                 .lut20 = {
 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                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 336                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 337                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 338                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 339                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 340                 },
 341         },
 342         {
 343                 .range = 12,
 344                 .lut20 = {
 345                         cpu_to_le32(0x00000001),  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                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 357                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 358                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 359                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 360                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 361                 },
 362         },
 363         {
 364                 .range = 20,
 365                 .lut20 = {
 366                         cpu_to_le32(0x00000002),  cpu_to_le32(0x00000000),
 367                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 368                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 369                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 370                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 371                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 372                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 373                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 374                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 375                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 376                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 377                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 378                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 379                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 380                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 381                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 382                 },
 383         },
 384         {
 385                 .range = 21,
 386                 .lut20 = {
 387                         cpu_to_le32(0x00000003),  cpu_to_le32(0x00000000),
 388                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 389                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 390                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 391                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 392                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 393                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 394                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 395                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 396                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 397                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 398                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 399                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 400                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 401                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 402                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 403                 },
 404         },
 405         {
 406                 .range = 23,
 407                 .lut20 = {
 408                         cpu_to_le32(0x00000004),  cpu_to_le32(0x00000000),
 409                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 410                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 411                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 412                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 413                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 414                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 415                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 416                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 417                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 418                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 419                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 420                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 421                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 422                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 423                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 424                 },
 425         },
 426         {
 427                 .range = 27,
 428                 .lut20 = {
 429                         cpu_to_le32(0x00000005),  cpu_to_le32(0x00000000),
 430                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 431                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 432                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 433                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 434                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 435                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 436                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 437                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 438                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 439                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 440                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 441                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 442                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 443                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 444                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 445                 },
 446         },
 447         {
 448                 .range = 30,
 449                 .lut20 = {
 450                         cpu_to_le32(0x00000006),  cpu_to_le32(0x00000000),
 451                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 452                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 453                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 454                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 455                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 456                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 457                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 458                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 459                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 460                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 461                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 462                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 463                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 464                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 465                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 466                 },
 467         },
 468         {
 469                 .range = 32,
 470                 .lut20 = {
 471                         cpu_to_le32(0x00000007),  cpu_to_le32(0x00000000),
 472                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 473                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 474                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 475                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 476                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 477                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 478                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 479                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 480                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 481                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 482                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 483                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 484                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 485                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 486                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 487                 },
 488         },
 489         {
 490                 .range = 33,
 491                 .lut20 = {
 492                         cpu_to_le32(0x00000008),  cpu_to_le32(0x00000000),
 493                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 494                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 495                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 496                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 497                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 498                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 499                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 500                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 501                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 502                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 503                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 504                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 505                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 506                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 507                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 508                 },
 509         },
 510 };
 511
 512 static enum iwl_bt_coex_lut_type
 513 iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
 514 {
 515         struct ieee80211_chanctx_conf *chanctx_conf;
 516         enum iwl_bt_coex_lut_type ret;
 517         u16 phy_ctx_id;
 518         u32 primary_ch_phy_id, secondary_ch_phy_id;
 519
 520         /*
 521          * Checking that we hold mvm->mutex is a good idea, but the rate
 522          * control can't acquire the mutex since it runs in Tx path.
 523          * So this is racy in that case, but in the worst case, the AMPDU
 524          * size limit will be wrong for a short time which is not a big
 525          * issue.
 526          */
 527
 528         rcu_read_lock();
 529
 530         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 531
 532         if (!chanctx_conf ||
 533              chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
 534                 rcu_read_unlock();
 535                 return BT_COEX_INVALID_LUT;
 536         }
 537
 538         ret = BT_COEX_TX_DIS_LUT;
 539
 540         if (mvm->cfg->bt_shared_single_ant) {
 541                 rcu_read_unlock();
 542                 return ret;
 543         }
 544
 545         phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
 546         primary_ch_phy_id = le32_to_cpu(mvm->last_bt_ci_cmd.primary_ch_phy_id);
 547         secondary_ch_phy_id =
 548                 le32_to_cpu(mvm->last_bt_ci_cmd.secondary_ch_phy_id);
 549
 550         if (primary_ch_phy_id == phy_ctx_id)
 551                 ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut);
 552         else if (secondary_ch_phy_id == phy_ctx_id)
 553                 ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut);
 554         /* else - default = TX TX disallowed */
 555
 556         rcu_read_unlock();
 557
 558         return ret;
 559 }
 560
 561 int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
 562 {
 563         struct iwl_bt_coex_cmd *bt_cmd;
 564         struct iwl_host_cmd cmd = {
 565                 .id = BT_CONFIG,
 566                 .len = { sizeof(*bt_cmd), },
 567                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 568         };
 569         int ret;
 570         u32 mode;
 571
 572         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
 573                 return iwl_send_bt_init_conf_old(mvm);
 574
 575         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
 576         if (!bt_cmd)
 577                 return -ENOMEM;
 578         cmd.data[0] = bt_cmd;
 579
 580         lockdep_assert_held(&mvm->mutex);
 581
 582         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) {
 583                 switch (mvm->bt_force_ant_mode) {
 584                 case BT_FORCE_ANT_BT:
 585                         mode = BT_COEX_BT;
 586                         break;
 587                 case BT_FORCE_ANT_WIFI:
 588                         mode = BT_COEX_WIFI;
 589                         break;
 590                 default:
 591                         WARN_ON(1);
 592                         mode = 0;
 593                 }
 594
 595                 bt_cmd->mode = cpu_to_le32(mode);
 596                 goto send_cmd;
 597         }
 598
 599         bt_cmd->max_kill = cpu_to_le32(5);
 600         bt_cmd->bt4_antenna_isolation_thr =
 601                 cpu_to_le32(IWL_MVM_BT_COEX_ANTENNA_COUPLING_THRS);
 602         bt_cmd->bt4_tx_tx_delta_freq_thr = cpu_to_le32(15);
 603         bt_cmd->bt4_tx_rx_max_freq0 = cpu_to_le32(15);
 604         bt_cmd->override_primary_lut = cpu_to_le32(BT_COEX_INVALID_LUT);
 605         bt_cmd->override_secondary_lut = cpu_to_le32(BT_COEX_INVALID_LUT);
 606
 607         mode = iwlwifi_mod_params.bt_coex_active ? BT_COEX_NW : BT_COEX_DISABLE;
 608         bt_cmd->mode = cpu_to_le32(mode);
 609
 610         if (IWL_MVM_BT_COEX_SYNC2SCO)
 611                 bt_cmd->enabled_modules |=
 612                         cpu_to_le32(BT_COEX_SYNC2SCO_ENABLED);
 613
 614         if (IWL_MVM_BT_COEX_CORUNNING)
 615                 bt_cmd->enabled_modules |= cpu_to_le32(BT_COEX_CORUN_ENABLED);
 616
 617         if (IWL_MVM_BT_COEX_MPLUT) {
 618                 bt_cmd->enabled_modules |= cpu_to_le32(BT_COEX_MPLUT_ENABLED);
 619                 bt_cmd->enabled_modules |=
 620                         cpu_to_le32(BT_COEX_MPLUT_BOOST_ENABLED);
 621         }
 622
 623         bt_cmd->enabled_modules |= cpu_to_le32(BT_COEX_HIGH_BAND_RET);
 624
 625         if (mvm->cfg->bt_shared_single_ant)
 626                 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant,
 627                        sizeof(iwl_single_shared_ant));
 628         else
 629                 memcpy(&bt_cmd->decision_lut, iwl_combined_lookup,
 630                        sizeof(iwl_combined_lookup));
 631
 632         memcpy(&bt_cmd->mplut_prio_boost, iwl_bt_prio_boost,
 633                sizeof(iwl_bt_prio_boost));
 634         bt_cmd->multiprio_lut[0] = cpu_to_le32(IWL_MVM_BT_COEX_MPLUT_REG0);
 635         bt_cmd->multiprio_lut[1] = cpu_to_le32(IWL_MVM_BT_COEX_MPLUT_REG1);
 636
 637 send_cmd:
 638         memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
 639         memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
 640
 641         ret = iwl_mvm_send_cmd(mvm, &cmd);
 642
 643         kfree(bt_cmd);
 644         return ret;
 645 }
 646
 647 static int iwl_mvm_bt_udpate_sw_boost(struct iwl_mvm *mvm)
 648 {
 649         struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
 650         u32 primary_lut = le32_to_cpu(notif->primary_ch_lut);
 651         u32 secondary_lut = le32_to_cpu(notif->secondary_ch_lut);
 652         u32 ag = le32_to_cpu(notif->bt_activity_grading);
 653         struct iwl_bt_coex_sw_boost_update_cmd cmd = {};
 654         u8 ack_kill_msk[NUM_PHY_CTX] = {};
 655         u8 cts_kill_msk[NUM_PHY_CTX] = {};
 656         int i;
 657
 658         lockdep_assert_held(&mvm->mutex);
 659
 660         ack_kill_msk[0] = iwl_bt_ack_kill_msk[ag][primary_lut];
 661         cts_kill_msk[0] = iwl_bt_cts_kill_msk[ag][primary_lut];
 662
 663         ack_kill_msk[1] = iwl_bt_ack_kill_msk[ag][secondary_lut];
 664         cts_kill_msk[1] = iwl_bt_cts_kill_msk[ag][secondary_lut];
 665
 666         /* Don't send HCMD if there is no update */
 667         if (!memcmp(ack_kill_msk, mvm->bt_ack_kill_msk, sizeof(ack_kill_msk)) ||
 668             !memcmp(cts_kill_msk, mvm->bt_cts_kill_msk, sizeof(cts_kill_msk)))
 669                 return 0;
 670
 671         memcpy(mvm->bt_ack_kill_msk, ack_kill_msk,
 672                sizeof(mvm->bt_ack_kill_msk));
 673         memcpy(mvm->bt_cts_kill_msk, cts_kill_msk,
 674                sizeof(mvm->bt_cts_kill_msk));
 675
 676         BUILD_BUG_ON(ARRAY_SIZE(ack_kill_msk) < ARRAY_SIZE(cmd.boost_values));
 677
 678         for (i = 0; i < ARRAY_SIZE(cmd.boost_values); i++) {
 679                 cmd.boost_values[i].kill_ack_msk =
 680                         cpu_to_le32(iwl_bt_ctl_kill_msk[ack_kill_msk[i]]);
 681                 cmd.boost_values[i].kill_cts_msk =
 682                         cpu_to_le32(iwl_bt_ctl_kill_msk[cts_kill_msk[i]]);
 683         }
 684
 685         return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_SW_BOOST, 0,
 686                                     sizeof(cmd), &cmd);
 687 }
 688
 689 static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
 690                                        bool enable)
 691 {
 692         struct iwl_bt_coex_reduced_txp_update_cmd cmd = {};
 693         struct iwl_mvm_sta *mvmsta;
 694         u32 value;
 695         int ret;
 696
 697         mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
 698         if (!mvmsta)
 699                 return 0;
 700
 701         /* nothing to do */
 702         if (mvmsta->bt_reduced_txpower == enable)
 703                 return 0;
 704
 705         value = mvmsta->sta_id;
 706
 707         if (enable)
 708                 value |= BT_REDUCED_TX_POWER_BIT;
 709
 710         IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
 711                        enable ? "en" : "dis", sta_id);
 712
 713         cmd.reduced_txp = cpu_to_le32(value);
 714         mvmsta->bt_reduced_txpower = enable;
 715
 716         ret = iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_REDUCED_TXP, CMD_ASYNC,
 717                                    sizeof(cmd), &cmd);
 718
 719         return ret;
 720 }
 721
 722 struct iwl_bt_iterator_data {
 723         struct iwl_bt_coex_profile_notif *notif;
 724         struct iwl_mvm *mvm;
 725         struct ieee80211_chanctx_conf *primary;
 726         struct ieee80211_chanctx_conf *secondary;
 727         bool primary_ll;
 728 };
 729
 730 static inline
 731 void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
 732                                        struct ieee80211_vif *vif,
 733                                        bool enable, int rssi)
 734 {
 735         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 736
 737         mvmvif->bf_data.last_bt_coex_event = rssi;
 738         mvmvif->bf_data.bt_coex_max_thold =
 739                 enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0;
 740         mvmvif->bf_data.bt_coex_min_thold =
 741                 enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0;
 742 }
 743
 744 /* must be called under rcu_read_lock */
 745 static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 746                                       struct ieee80211_vif *vif)
 747 {
 748         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 749         struct iwl_bt_iterator_data *data = _data;
 750         struct iwl_mvm *mvm = data->mvm;
 751         struct ieee80211_chanctx_conf *chanctx_conf;
 752         /* default smps_mode is AUTOMATIC - only used for client modes */
 753         enum ieee80211_smps_mode smps_mode = IEEE80211_SMPS_AUTOMATIC;
 754         u32 bt_activity_grading;
 755         int ave_rssi;
 756
 757         lockdep_assert_held(&mvm->mutex);
 758
 759         switch (vif->type) {
 760         case NL80211_IFTYPE_STATION:
 761                 break;
 762         case NL80211_IFTYPE_AP:
 763                 if (!mvmvif->ap_ibss_active)
 764                         return;
 765                 break;
 766         default:
 767                 return;
 768         }
 769
 770         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 771
 772         /* If channel context is invalid or not on 2.4GHz .. */
 773         if ((!chanctx_conf ||
 774              chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) {
 775                 if (vif->type == NL80211_IFTYPE_STATION) {
 776                         /* ... relax constraints and disable rssi events */
 777                         iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 778                                             smps_mode);
 779                         iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
 780                                                     false);
 781                         iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 782                 }
 783                 return;
 784         }
 785
 786         bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
 787         if (bt_activity_grading >= BT_HIGH_TRAFFIC)
 788                 smps_mode = IEEE80211_SMPS_STATIC;
 789         else if (bt_activity_grading >= BT_LOW_TRAFFIC)
 790                 smps_mode = IEEE80211_SMPS_DYNAMIC;
 791
 792         /* relax SMPS constraints for next association */
 793         if (!vif->bss_conf.assoc)
 794                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 795
 796         if (IWL_COEX_IS_RRC_ON(mvm->last_bt_notif.ttc_rrc_status,
 797                                mvmvif->phy_ctxt->id))
 798                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 799
 800         IWL_DEBUG_COEX(data->mvm,
 801                        "mac %d: bt_activity_grading %d smps_req %d\n",
 802                        mvmvif->id, bt_activity_grading, smps_mode);
 803
 804         if (vif->type == NL80211_IFTYPE_STATION)
 805                 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 806                                     smps_mode);
 807
 808         /* low latency is always primary */
 809         if (iwl_mvm_vif_low_latency(mvmvif)) {
 810                 data->primary_ll = true;
 811
 812                 data->secondary = data->primary;
 813                 data->primary = chanctx_conf;
 814         }
 815
 816         if (vif->type == NL80211_IFTYPE_AP) {
 817                 if (!mvmvif->ap_ibss_active)
 818                         return;
 819
 820                 if (chanctx_conf == data->primary)
 821                         return;
 822
 823                 if (!data->primary_ll) {
 824                         /*
 825                          * downgrade the current primary no matter what its
 826                          * type is.
 827                          */
 828                         data->secondary = data->primary;
 829                         data->primary = chanctx_conf;
 830                 } else {
 831                         /* there is low latency vif - we will be secondary */
 832                         data->secondary = chanctx_conf;
 833                 }
 834                 return;
 835         }
 836
 837         /*
 838          * STA / P2P Client, try to be primary if first vif. If we are in low
 839          * latency mode, we are already in primary and just don't do much
 840          */
 841         if (!data->primary || data->primary == chanctx_conf)
 842                 data->primary = chanctx_conf;
 843         else if (!data->secondary)
 844                 /* if secondary is not NULL, it might be a GO */
 845                 data->secondary = chanctx_conf;
 846
 847         /*
 848          * don't reduce the Tx power if one of these is true:
 849          *  we are in LOOSE
 850          *  single share antenna product
 851          *  BT is active
 852          *  we are associated
 853          */
 854         if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
 855             mvm->cfg->bt_shared_single_ant || !vif->bss_conf.assoc ||
 856             le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF) {
 857                 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false);
 858                 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 859                 return;
 860         }
 861
 862         /* try to get the avg rssi from fw */
 863         ave_rssi = mvmvif->bf_data.ave_beacon_signal;
 864
 865         /* if the RSSI isn't valid, fake it is very low */
 866         if (!ave_rssi)
 867                 ave_rssi = -100;
 868         if (ave_rssi > -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH) {
 869                 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true))
 870                         IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 871         } else if (ave_rssi < -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH) {
 872                 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
 873                         IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 874         }
 875
 876         /* Begin to monitor the RSSI: it may influence the reduced Tx power */
 877         iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
 878 }
 879
 880 static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
 881 {
 882         struct iwl_bt_iterator_data data = {
 883                 .mvm = mvm,
 884                 .notif = &mvm->last_bt_notif,
 885         };
 886         struct iwl_bt_coex_ci_cmd cmd = {};
 887         u8 ci_bw_idx;
 888
 889         /* Ignore updates if we are in force mode */
 890         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
 891                 return;
 892
 893         rcu_read_lock();
 894         ieee80211_iterate_active_interfaces_atomic(
 895                                         mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 896                                         iwl_mvm_bt_notif_iterator, &data);
 897
 898         if (data.primary) {
 899                 struct ieee80211_chanctx_conf *chan = data.primary;
 900                 if (WARN_ON(!chan->def.chan)) {
 901                         rcu_read_unlock();
 902                         return;
 903                 }
 904
 905                 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
 906                         ci_bw_idx = 0;
 907                 } else {
 908                         if (chan->def.center_freq1 >
 909                             chan->def.chan->center_freq)
 910                                 ci_bw_idx = 2;
 911                         else
 912                                 ci_bw_idx = 1;
 913                 }
 914
 915                 cmd.bt_primary_ci =
 916                         iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
 917                 cmd.primary_ch_phy_id =
 918                         cpu_to_le32(*((u16 *)data.primary->drv_priv));
 919         }
 920
 921         if (data.secondary) {
 922                 struct ieee80211_chanctx_conf *chan = data.secondary;
 923                 if (WARN_ON(!data.secondary->def.chan)) {
 924                         rcu_read_unlock();
 925                         return;
 926                 }
 927
 928                 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
 929                         ci_bw_idx = 0;
 930                 } else {
 931                         if (chan->def.center_freq1 >
 932                             chan->def.chan->center_freq)
 933                                 ci_bw_idx = 2;
 934                         else
 935                                 ci_bw_idx = 1;
 936                 }
 937
 938                 cmd.bt_secondary_ci =
 939                         iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
 940                 cmd.secondary_ch_phy_id =
 941                         cpu_to_le32(*((u16 *)data.secondary->drv_priv));
 942         }
 943
 944         rcu_read_unlock();
 945
 946         /* Don't spam the fw with the same command over and over */
 947         if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) {
 948                 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0,
 949                                          sizeof(cmd), &cmd))
 950                         IWL_ERR(mvm, "Failed to send BT_CI cmd\n");
 951                 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd));
 952         }
 953
 954         if (iwl_mvm_bt_udpate_sw_boost(mvm))
 955                 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
 956 }
 957
 958 int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
 959                              struct iwl_rx_cmd_buffer *rxb,
 960                              struct iwl_device_cmd *dev_cmd)
 961 {
 962         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 963         struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data;
 964
 965         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
 966                 return iwl_mvm_rx_bt_coex_notif_old(mvm, rxb, dev_cmd);
 967
 968         IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
 969         IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
 970         IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
 971                        le32_to_cpu(notif->primary_ch_lut));
 972         IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
 973                        le32_to_cpu(notif->secondary_ch_lut));
 974         IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
 975                        le32_to_cpu(notif->bt_activity_grading));
 976
 977         /* remember this notification for future use: rssi fluctuations */
 978         memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif));
 979
 980         iwl_mvm_bt_coex_notif_handle(mvm);
 981
 982         /*
 983          * This is an async handler for a notification, returning anything other
 984          * than 0 doesn't make sense even if HCMD failed.
 985          */
 986         return 0;
 987 }
 988
 989 static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
 990                                    struct ieee80211_vif *vif)
 991 {
 992         struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
 993         struct iwl_bt_iterator_data *data = _data;
 994         struct iwl_mvm *mvm = data->mvm;
 995
 996         struct ieee80211_sta *sta;
 997         struct iwl_mvm_sta *mvmsta;
 998
 999         struct ieee80211_chanctx_conf *chanctx_conf;
1000
1001         rcu_read_lock();
1002         chanctx_conf = rcu_dereference(vif->chanctx_conf);
1003         /* If channel context is invalid or not on 2.4GHz - don't count it */
1004         if (!chanctx_conf ||
1005             chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
1006                 rcu_read_unlock();
1007                 return;
1008         }
1009         rcu_read_unlock();
1010
1011         if (vif->type != NL80211_IFTYPE_STATION ||
1012             mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1013                 return;
1014
1015         sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1016                                         lockdep_is_held(&mvm->mutex));
1017
1018         /* This can happen if the station has been removed right now */
1019         if (IS_ERR_OR_NULL(sta))
1020                 return;
1021
1022         mvmsta = iwl_mvm_sta_from_mac80211(sta);
1023 }
1024
1025 void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1026                            enum ieee80211_rssi_event rssi_event)
1027 {
1028         struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1029         struct iwl_bt_iterator_data data = {
1030                 .mvm = mvm,
1031         };
1032         int ret;
1033
1034         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
1035                 iwl_mvm_bt_rssi_event_old(mvm, vif, rssi_event);
1036                 return;
1037         }
1038
1039         lockdep_assert_held(&mvm->mutex);
1040
1041         /* Ignore updates if we are in force mode */
1042         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1043                 return;
1044
1045         /*
1046          * Rssi update while not associated - can happen since the statistics
1047          * are handled asynchronously
1048          */
1049         if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1050                 return;
1051
1052         /* No BT - reports should be disabled */
1053         if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF)
1054                 return;
1055
1056         IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
1057                        rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
1058
1059         /*
1060          * Check if rssi is good enough for reduced Tx power, but not in loose
1061          * scheme.
1062          */
1063         if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
1064             iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
1065                 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
1066                                                   false);
1067         else
1068                 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true);
1069
1070         if (ret)
1071                 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
1072
1073         ieee80211_iterate_active_interfaces_atomic(
1074                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1075                 iwl_mvm_bt_rssi_iterator, &data);
1076
1077         if (iwl_mvm_bt_udpate_sw_boost(mvm))
1078                 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
1079 }
1080
1081 #define LINK_QUAL_AGG_TIME_LIMIT_DEF    (4000)
1082 #define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
1083
1084 u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm,
1085                                 struct ieee80211_sta *sta)
1086 {
1087         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1088         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
1089         struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->phy_ctxt;
1090         enum iwl_bt_coex_lut_type lut_type;
1091
1092         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
1093                 return iwl_mvm_coex_agg_time_limit_old(mvm, sta);
1094
1095         if (IWL_COEX_IS_TTC_ON(mvm->last_bt_notif.ttc_rrc_status, phy_ctxt->id))
1096                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1097
1098         if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
1099             BT_HIGH_TRAFFIC)
1100                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1101
1102         lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1103
1104         if (lut_type == BT_COEX_LOOSE_LUT || lut_type == BT_COEX_INVALID_LUT)
1105                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1106
1107         /* tight coex, high bt traffic, reduce AGG time limit */
1108         return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
1109 }
1110
1111 bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
1112                                      struct ieee80211_sta *sta)
1113 {
1114         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1115         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
1116         struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->phy_ctxt;
1117         enum iwl_bt_coex_lut_type lut_type;
1118
1119         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
1120                 return iwl_mvm_bt_coex_is_mimo_allowed_old(mvm, sta);
1121
1122         if (IWL_COEX_IS_TTC_ON(mvm->last_bt_notif.ttc_rrc_status, phy_ctxt->id))
1123                 return true;
1124
1125         if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
1126             BT_HIGH_TRAFFIC)
1127                 return true;
1128
1129         /*
1130          * In Tight / TxTxDis, BT can't Rx while we Tx, so use both antennas
1131          * since BT is already killed.
1132          * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while
1133          * we Tx.
1134          * When we are in 5GHz, we'll get BT_COEX_INVALID_LUT allowing MIMO.
1135          */
1136         lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1137         return lut_type != BT_COEX_LOOSE_LUT;
1138 }
1139
1140 bool iwl_mvm_bt_coex_is_ant_avail(struct iwl_mvm *mvm, u8 ant)
1141 {
1142         /* there is no other antenna, shared antenna is always available */
1143         if (mvm->cfg->bt_shared_single_ant)
1144                 return true;
1145
1146         if (ant & mvm->cfg->non_shared_ant)
1147                 return true;
1148
1149         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
1150                 return iwl_mvm_bt_coex_is_shared_ant_avail_old(mvm);
1151
1152         return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
1153                 BT_HIGH_TRAFFIC;
1154 }
1155
1156 bool iwl_mvm_bt_coex_is_shared_ant_avail(struct iwl_mvm *mvm)
1157 {
1158         /* there is no other antenna, shared antenna is always available */
1159         if (mvm->cfg->bt_shared_single_ant)
1160                 return true;
1161
1162         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
1163                 return iwl_mvm_bt_coex_is_shared_ant_avail_old(mvm);
1164
1165         return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF;
1166 }
1167
1168 bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm,
1169                                     enum ieee80211_band band)
1170 {
1171         u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading);
1172
1173         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
1174                 return iwl_mvm_bt_coex_is_tpc_allowed_old(mvm, band);
1175
1176         if (band != IEEE80211_BAND_2GHZ)
1177                 return false;
1178
1179         return bt_activity >= BT_LOW_TRAFFIC;
1180 }
1181
1182 u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
1183                            struct ieee80211_tx_info *info, u8 ac)
1184 {
1185         __le16 fc = hdr->frame_control;
1186
1187         if (info->band != IEEE80211_BAND_2GHZ)
1188                 return 0;
1189
1190         if (unlikely(mvm->bt_tx_prio))
1191                 return mvm->bt_tx_prio - 1;
1192
1193         /* High prio packet (wrt. BT coex) if it is EAPOL, MCAST or MGMT */
1194         if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO ||
1195              is_multicast_ether_addr(hdr->addr1) ||
1196              ieee80211_is_ctl(fc) || ieee80211_is_mgmt(fc) ||
1197              ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc))
1198                 return 3;
1199
1200         switch (ac) {
1201         case IEEE80211_AC_BE:
1202                 return 1;
1203         case IEEE80211_AC_VO:
1204                 return 3;
1205         case IEEE80211_AC_VI:
1206                 return 2;
1207         default:
1208                 break;
1209         }
1210
1211         return 0;
1212 }
1213
1214 void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm)
1215 {
1216         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
1217                 iwl_mvm_bt_coex_vif_change_old(mvm);
1218                 return;
1219         }
1220
1221         iwl_mvm_bt_coex_notif_handle(mvm);
1222 }
1223
1224 int iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm,
1225                                   struct iwl_rx_cmd_buffer *rxb,
1226                                   struct iwl_device_cmd *dev_cmd)
1227 {
1228         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1229         u32 ant_isolation = le32_to_cpup((void *)pkt->data);
1230         struct iwl_bt_coex_corun_lut_update_cmd cmd = {};
1231         u8 __maybe_unused lower_bound, upper_bound;
1232         u8 lut;
1233
1234         if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT))
1235                 return iwl_mvm_rx_ant_coupling_notif_old(mvm, rxb, dev_cmd);
1236
1237         if (!IWL_MVM_BT_COEX_CORUNNING)
1238                 return 0;
1239
1240         lockdep_assert_held(&mvm->mutex);
1241
1242         /* Ignore updates if we are in force mode */
1243         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1244                 return 0;
1245
1246         if (ant_isolation ==  mvm->last_ant_isol)
1247                 return 0;
1248
1249         for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++)
1250                 if (ant_isolation < antenna_coupling_ranges[lut + 1].range)
1251                         break;
1252
1253         lower_bound = antenna_coupling_ranges[lut].range;
1254
1255         if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1)
1256                 upper_bound = antenna_coupling_ranges[lut + 1].range;
1257         else
1258                 upper_bound = antenna_coupling_ranges[lut].range;
1259
1260         IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n",
1261                        ant_isolation, lower_bound, upper_bound, lut);
1262
1263         mvm->last_ant_isol = ant_isolation;
1264
1265         if (mvm->last_corun_lut == lut)
1266                 return 0;
1267
1268         mvm->last_corun_lut = lut;
1269
1270         /* For the moment, use the same LUT for 20GHz and 40GHz */
1271         memcpy(&cmd.corun_lut20, antenna_coupling_ranges[lut].lut20,
1272                sizeof(cmd.corun_lut20));
1273
1274         memcpy(&cmd.corun_lut40, antenna_coupling_ranges[lut].lut20,
1275                sizeof(cmd.corun_lut40));
1276
1277         return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_CORUN_LUT, 0,
1278                                     sizeof(cmd), &cmd);
1279 }