drivers/net/wireless/iwlwifi/mvm/coex_legacy.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  *
  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.
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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
  47  *    distribution.
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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,
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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 #define EVENT_PRIO_ANT(_evt, _prio, _shrd_ant)                  \
  76         [(_evt)] = (((_prio) << BT_COEX_PRIO_TBL_PRIO_POS) |    \
  77                    ((_shrd_ant) << BT_COEX_PRIO_TBL_SHRD_ANT_POS))
  78
  79 static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
  80         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB1,
  81                        BT_COEX_PRIO_TBL_PRIO_BYPASS, 0),
  82         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB2,
  83                        BT_COEX_PRIO_TBL_PRIO_BYPASS, 1),
  84         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW1,
  85                        BT_COEX_PRIO_TBL_PRIO_LOW, 0),
  86         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW2,
  87                        BT_COEX_PRIO_TBL_PRIO_LOW, 1),
  88         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH1,
  89                        BT_COEX_PRIO_TBL_PRIO_HIGH, 0),
  90         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH2,
  91                        BT_COEX_PRIO_TBL_PRIO_HIGH, 1),
  92         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_DTIM,
  93                        BT_COEX_PRIO_TBL_DISABLED, 0),
  94         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN52,
  95                        BT_COEX_PRIO_TBL_PRIO_COEX_OFF, 0),
  96         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN24,
  97                        BT_COEX_PRIO_TBL_PRIO_COEX_ON, 0),
  98         EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_IDLE,
  99                        BT_COEX_PRIO_TBL_PRIO_COEX_IDLE, 0),
 100         0, 0, 0, 0, 0, 0,
 101 };
 102
 103 #undef EVENT_PRIO_ANT
 104
 105 #define BT_ANTENNA_COUPLING_THRESHOLD           (30)
 106
 107 static int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm)
 108 {
 109         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
 110                 return 0;
 111
 112         return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, 0,
 113                                     sizeof(struct iwl_bt_coex_prio_tbl_cmd),
 114                                     &iwl_bt_prio_tbl);
 115 }
 116
 117 static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = {
 118         cpu_to_le32(0xf0f0f0f0), /* 50% */
 119         cpu_to_le32(0xc0c0c0c0), /* 25% */
 120         cpu_to_le32(0xfcfcfcfc), /* 75% */
 121         cpu_to_le32(0xfefefefe), /* 87.5% */
 122 };
 123
 124 static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
 125         {
 126                 cpu_to_le32(0x40000000),
 127                 cpu_to_le32(0x00000000),
 128                 cpu_to_le32(0x44000000),
 129                 cpu_to_le32(0x00000000),
 130                 cpu_to_le32(0x40000000),
 131                 cpu_to_le32(0x00000000),
 132                 cpu_to_le32(0x44000000),
 133                 cpu_to_le32(0x00000000),
 134                 cpu_to_le32(0xc0004000),
 135                 cpu_to_le32(0xf0005000),
 136                 cpu_to_le32(0xc0004000),
 137                 cpu_to_le32(0xf0005000),
 138         },
 139         {
 140                 cpu_to_le32(0x40000000),
 141                 cpu_to_le32(0x00000000),
 142                 cpu_to_le32(0x44000000),
 143                 cpu_to_le32(0x00000000),
 144                 cpu_to_le32(0x40000000),
 145                 cpu_to_le32(0x00000000),
 146                 cpu_to_le32(0x44000000),
 147                 cpu_to_le32(0x00000000),
 148                 cpu_to_le32(0xc0004000),
 149                 cpu_to_le32(0xf0005000),
 150                 cpu_to_le32(0xc0004000),
 151                 cpu_to_le32(0xf0005000),
 152         },
 153         {
 154                 cpu_to_le32(0x40000000),
 155                 cpu_to_le32(0x00000000),
 156                 cpu_to_le32(0x44000000),
 157                 cpu_to_le32(0x00000000),
 158                 cpu_to_le32(0x40000000),
 159                 cpu_to_le32(0x00000000),
 160                 cpu_to_le32(0x44000000),
 161                 cpu_to_le32(0x00000000),
 162                 cpu_to_le32(0xc0004000),
 163                 cpu_to_le32(0xf0005000),
 164                 cpu_to_le32(0xc0004000),
 165                 cpu_to_le32(0xf0005000),
 166         },
 167 };
 168
 169 static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
 170         {
 171                 /* Tight */
 172                 cpu_to_le32(0xaaaaaaaa),
 173                 cpu_to_le32(0xaaaaaaaa),
 174                 cpu_to_le32(0xaeaaaaaa),
 175                 cpu_to_le32(0xaaaaaaaa),
 176                 cpu_to_le32(0xcc00ff28),
 177                 cpu_to_le32(0x0000aaaa),
 178                 cpu_to_le32(0xcc00aaaa),
 179                 cpu_to_le32(0x0000aaaa),
 180                 cpu_to_le32(0xc0004000),
 181                 cpu_to_le32(0x00004000),
 182                 cpu_to_le32(0xf0005000),
 183                 cpu_to_le32(0xf0005000),
 184         },
 185         {
 186                 /* Loose */
 187                 cpu_to_le32(0xaaaaaaaa),
 188                 cpu_to_le32(0xaaaaaaaa),
 189                 cpu_to_le32(0xaaaaaaaa),
 190                 cpu_to_le32(0xaaaaaaaa),
 191                 cpu_to_le32(0xcc00ff28),
 192                 cpu_to_le32(0x0000aaaa),
 193                 cpu_to_le32(0xcc00aaaa),
 194                 cpu_to_le32(0x0000aaaa),
 195                 cpu_to_le32(0x00000000),
 196                 cpu_to_le32(0x00000000),
 197                 cpu_to_le32(0xf0005000),
 198                 cpu_to_le32(0xf0005000),
 199         },
 200         {
 201                 /* Tx Tx disabled */
 202                 cpu_to_le32(0xaaaaaaaa),
 203                 cpu_to_le32(0xaaaaaaaa),
 204                 cpu_to_le32(0xeeaaaaaa),
 205                 cpu_to_le32(0xaaaaaaaa),
 206                 cpu_to_le32(0xcc00ff28),
 207                 cpu_to_le32(0x0000aaaa),
 208                 cpu_to_le32(0xcc00aaaa),
 209                 cpu_to_le32(0x0000aaaa),
 210                 cpu_to_le32(0xc0004000),
 211                 cpu_to_le32(0xc0004000),
 212                 cpu_to_le32(0xf0005000),
 213                 cpu_to_le32(0xf0005000),
 214         },
 215 };
 216
 217 /* 20MHz / 40MHz below / 40Mhz above*/
 218 static const __le64 iwl_ci_mask[][3] = {
 219         /* dummy entry for channel 0 */
 220         {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
 221         {
 222                 cpu_to_le64(0x0000001FFFULL),
 223                 cpu_to_le64(0x0ULL),
 224                 cpu_to_le64(0x00007FFFFFULL),
 225         },
 226         {
 227                 cpu_to_le64(0x000000FFFFULL),
 228                 cpu_to_le64(0x0ULL),
 229                 cpu_to_le64(0x0003FFFFFFULL),
 230         },
 231         {
 232                 cpu_to_le64(0x000003FFFCULL),
 233                 cpu_to_le64(0x0ULL),
 234                 cpu_to_le64(0x000FFFFFFCULL),
 235         },
 236         {
 237                 cpu_to_le64(0x00001FFFE0ULL),
 238                 cpu_to_le64(0x0ULL),
 239                 cpu_to_le64(0x007FFFFFE0ULL),
 240         },
 241         {
 242                 cpu_to_le64(0x00007FFF80ULL),
 243                 cpu_to_le64(0x00007FFFFFULL),
 244                 cpu_to_le64(0x01FFFFFF80ULL),
 245         },
 246         {
 247                 cpu_to_le64(0x0003FFFC00ULL),
 248                 cpu_to_le64(0x0003FFFFFFULL),
 249                 cpu_to_le64(0x0FFFFFFC00ULL),
 250         },
 251         {
 252                 cpu_to_le64(0x000FFFF000ULL),
 253                 cpu_to_le64(0x000FFFFFFCULL),
 254                 cpu_to_le64(0x3FFFFFF000ULL),
 255         },
 256         {
 257                 cpu_to_le64(0x007FFF8000ULL),
 258                 cpu_to_le64(0x007FFFFFE0ULL),
 259                 cpu_to_le64(0xFFFFFF8000ULL),
 260         },
 261         {
 262                 cpu_to_le64(0x01FFFE0000ULL),
 263                 cpu_to_le64(0x01FFFFFF80ULL),
 264                 cpu_to_le64(0xFFFFFE0000ULL),
 265         },
 266         {
 267                 cpu_to_le64(0x0FFFF00000ULL),
 268                 cpu_to_le64(0x0FFFFFFC00ULL),
 269                 cpu_to_le64(0x0ULL),
 270         },
 271         {
 272                 cpu_to_le64(0x3FFFC00000ULL),
 273                 cpu_to_le64(0x3FFFFFF000ULL),
 274                 cpu_to_le64(0x0)
 275         },
 276         {
 277                 cpu_to_le64(0xFFFE000000ULL),
 278                 cpu_to_le64(0xFFFFFF8000ULL),
 279                 cpu_to_le64(0x0)
 280         },
 281         {
 282                 cpu_to_le64(0xFFF8000000ULL),
 283                 cpu_to_le64(0xFFFFFE0000ULL),
 284                 cpu_to_le64(0x0)
 285         },
 286         {
 287                 cpu_to_le64(0xFFC0000000ULL),
 288                 cpu_to_le64(0x0ULL),
 289                 cpu_to_le64(0x0ULL)
 290         },
 291 };
 292
 293 static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = {
 294         cpu_to_le32(0x28412201),
 295         cpu_to_le32(0x11118451),
 296 };
 297
 298 struct corunning_block_luts {
 299         u8 range;
 300         __le32 lut20[BT_COEX_CORUN_LUT_SIZE];
 301 };
 302
 303 /*
 304  * Ranges for the antenna coupling calibration / co-running block LUT:
 305  *              LUT0: [ 0, 12[
 306  *              LUT1: [12, 20[
 307  *              LUT2: [20, 21[
 308  *              LUT3: [21, 23[
 309  *              LUT4: [23, 27[
 310  *              LUT5: [27, 30[
 311  *              LUT6: [30, 32[
 312  *              LUT7: [32, 33[
 313  *              LUT8: [33, - [
 314  */
 315 static const struct corunning_block_luts antenna_coupling_ranges[] = {
 316         {
 317                 .range = 0,
 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 = 12,
 339                 .lut20 = {
 340                         cpu_to_le32(0x00000001),  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                 .range = 20,
 360                 .lut20 = {
 361                         cpu_to_le32(0x00000002),  cpu_to_le32(0x00000000),
 362                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 363                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 364                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 365                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 366                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 367                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 368                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 369                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 370                         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                 },
 378         },
 379         {
 380                 .range = 21,
 381                 .lut20 = {
 382                         cpu_to_le32(0x00000003),  cpu_to_le32(0x00000000),
 383                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 384                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 385                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 386                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 387                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 388                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 389                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 390                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 391                         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                 },
 399         },
 400         {
 401                 .range = 23,
 402                 .lut20 = {
 403                         cpu_to_le32(0x00000004),  cpu_to_le32(0x00000000),
 404                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 405                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 406                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 407                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 408                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 409                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 410                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 411                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 412                         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                 },
 420         },
 421         {
 422                 .range = 27,
 423                 .lut20 = {
 424                         cpu_to_le32(0x00000005),  cpu_to_le32(0x00000000),
 425                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 426                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 427                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 428                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 429                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 430                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 431                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 432                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 433                         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                 },
 441         },
 442         {
 443                 .range = 30,
 444                 .lut20 = {
 445                         cpu_to_le32(0x00000006),  cpu_to_le32(0x00000000),
 446                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 447                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 448                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 449                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 450                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 451                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 452                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 453                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 454                         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                 },
 462         },
 463         {
 464                 .range = 32,
 465                 .lut20 = {
 466                         cpu_to_le32(0x00000007),  cpu_to_le32(0x00000000),
 467                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 468                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 469                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 470                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 471                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 472                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 473                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 474                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 475                         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                 },
 483         },
 484         {
 485                 .range = 33,
 486                 .lut20 = {
 487                         cpu_to_le32(0x00000008),  cpu_to_le32(0x00000000),
 488                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 489                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 490                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 491                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 492                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 493                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 494                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 495                         cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 496                         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                 },
 504         },
 505 };
 506
 507 static enum iwl_bt_coex_lut_type
 508 iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
 509 {
 510         struct ieee80211_chanctx_conf *chanctx_conf;
 511         enum iwl_bt_coex_lut_type ret;
 512         u16 phy_ctx_id;
 513
 514         /*
 515          * Checking that we hold mvm->mutex is a good idea, but the rate
 516          * control can't acquire the mutex since it runs in Tx path.
 517          * So this is racy in that case, but in the worst case, the AMPDU
 518          * size limit will be wrong for a short time which is not a big
 519          * issue.
 520          */
 521
 522         rcu_read_lock();
 523
 524         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 525
 526         if (!chanctx_conf ||
 527             chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
 528                 rcu_read_unlock();
 529                 return BT_COEX_INVALID_LUT;
 530         }
 531
 532         ret = BT_COEX_TX_DIS_LUT;
 533
 534         if (mvm->cfg->bt_shared_single_ant) {
 535                 rcu_read_unlock();
 536                 return ret;
 537         }
 538
 539         phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
 540
 541         if (mvm->last_bt_ci_cmd_old.primary_ch_phy_id == phy_ctx_id)
 542                 ret = le32_to_cpu(mvm->last_bt_notif_old.primary_ch_lut);
 543         else if (mvm->last_bt_ci_cmd_old.secondary_ch_phy_id == phy_ctx_id)
 544                 ret = le32_to_cpu(mvm->last_bt_notif_old.secondary_ch_lut);
 545         /* else - default = TX TX disallowed */
 546
 547         rcu_read_unlock();
 548
 549         return ret;
 550 }
 551
 552 int iwl_send_bt_init_conf_old(struct iwl_mvm *mvm)
 553 {
 554         struct iwl_bt_coex_cmd_old *bt_cmd;
 555         struct iwl_host_cmd cmd = {
 556                 .id = BT_CONFIG,
 557                 .len = { sizeof(*bt_cmd), },
 558                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 559         };
 560         int ret;
 561         u32 flags;
 562
 563         ret = iwl_send_bt_prio_tbl(mvm);
 564         if (ret)
 565                 return ret;
 566
 567         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
 568         if (!bt_cmd)
 569                 return -ENOMEM;
 570         cmd.data[0] = bt_cmd;
 571
 572         lockdep_assert_held(&mvm->mutex);
 573
 574         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) {
 575                 switch (mvm->bt_force_ant_mode) {
 576                 case BT_FORCE_ANT_AUTO:
 577                         flags = BT_COEX_AUTO_OLD;
 578                         break;
 579                 case BT_FORCE_ANT_BT:
 580                         flags = BT_COEX_BT_OLD;
 581                         break;
 582                 case BT_FORCE_ANT_WIFI:
 583                         flags = BT_COEX_WIFI_OLD;
 584                         break;
 585                 default:
 586                         WARN_ON(1);
 587                         flags = 0;
 588                 }
 589
 590                 bt_cmd->flags = cpu_to_le32(flags);
 591                 bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE);
 592                 goto send_cmd;
 593         }
 594
 595         bt_cmd->max_kill = 5;
 596         bt_cmd->bt4_antenna_isolation_thr = BT_ANTENNA_COUPLING_THRESHOLD;
 597         bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling;
 598         bt_cmd->bt4_tx_tx_delta_freq_thr = 15;
 599         bt_cmd->bt4_tx_rx_max_freq0 = 15;
 600         bt_cmd->override_primary_lut = BT_COEX_INVALID_LUT;
 601         bt_cmd->override_secondary_lut = BT_COEX_INVALID_LUT;
 602
 603         flags = iwlwifi_mod_params.bt_coex_active ?
 604                         BT_COEX_NW_OLD : BT_COEX_DISABLE_OLD;
 605         bt_cmd->flags = cpu_to_le32(flags);
 606
 607         bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE |
 608                                             BT_VALID_BT_PRIO_BOOST |
 609                                             BT_VALID_MAX_KILL |
 610                                             BT_VALID_3W_TMRS |
 611                                             BT_VALID_KILL_ACK |
 612                                             BT_VALID_KILL_CTS |
 613                                             BT_VALID_REDUCED_TX_POWER |
 614                                             BT_VALID_LUT |
 615                                             BT_VALID_WIFI_RX_SW_PRIO_BOOST |
 616                                             BT_VALID_WIFI_TX_SW_PRIO_BOOST |
 617                                             BT_VALID_ANT_ISOLATION |
 618                                             BT_VALID_ANT_ISOLATION_THRS |
 619                                             BT_VALID_TXTX_DELTA_FREQ_THRS |
 620                                             BT_VALID_TXRX_MAX_FREQ_0 |
 621                                             BT_VALID_SYNC_TO_SCO);
 622
 623         if (IWL_MVM_BT_COEX_SYNC2SCO)
 624                 bt_cmd->flags |= cpu_to_le32(BT_COEX_SYNC2SCO);
 625
 626         if (IWL_MVM_BT_COEX_CORUNNING) {
 627                 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_CORUN_LUT_20 |
 628                                                      BT_VALID_CORUN_LUT_40);
 629                 bt_cmd->flags |= cpu_to_le32(BT_COEX_CORUNNING);
 630         }
 631
 632         if (IWL_MVM_BT_COEX_MPLUT) {
 633                 bt_cmd->flags |= cpu_to_le32(BT_COEX_MPLUT);
 634                 bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_MULTI_PRIO_LUT);
 635         }
 636
 637         if (mvm->cfg->bt_shared_single_ant)
 638                 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant,
 639                        sizeof(iwl_single_shared_ant));
 640         else
 641                 memcpy(&bt_cmd->decision_lut, iwl_combined_lookup,
 642                        sizeof(iwl_combined_lookup));
 643
 644         /* Take first Co-running block LUT to get started */
 645         memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[0].lut20,
 646                sizeof(bt_cmd->bt4_corun_lut20));
 647         memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[0].lut20,
 648                sizeof(bt_cmd->bt4_corun_lut40));
 649
 650         memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost,
 651                sizeof(iwl_bt_prio_boost));
 652         memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut,
 653                sizeof(iwl_bt_mprio_lut));
 654
 655 send_cmd:
 656         memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
 657         memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
 658
 659         ret = iwl_mvm_send_cmd(mvm, &cmd);
 660
 661         kfree(bt_cmd);
 662         return ret;
 663 }
 664
 665 static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm)
 666 {
 667         struct iwl_bt_coex_profile_notif_old *notif = &mvm->last_bt_notif_old;
 668         u32 primary_lut = le32_to_cpu(notif->primary_ch_lut);
 669         u32 ag = le32_to_cpu(notif->bt_activity_grading);
 670         struct iwl_bt_coex_cmd_old *bt_cmd;
 671         u8 ack_kill_msk, cts_kill_msk;
 672         struct iwl_host_cmd cmd = {
 673                 .id = BT_CONFIG,
 674                 .data[0] = &bt_cmd,
 675                 .len = { sizeof(*bt_cmd), },
 676                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 677         };
 678         int ret = 0;
 679
 680         lockdep_assert_held(&mvm->mutex);
 681
 682         ack_kill_msk = iwl_bt_ack_kill_msk[ag][primary_lut];
 683         cts_kill_msk = iwl_bt_cts_kill_msk[ag][primary_lut];
 684
 685         if (mvm->bt_ack_kill_msk[0] == ack_kill_msk &&
 686             mvm->bt_cts_kill_msk[0] == cts_kill_msk)
 687                 return 0;
 688
 689         mvm->bt_ack_kill_msk[0] = ack_kill_msk;
 690         mvm->bt_cts_kill_msk[0] = cts_kill_msk;
 691
 692         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
 693         if (!bt_cmd)
 694                 return -ENOMEM;
 695         cmd.data[0] = bt_cmd;
 696         bt_cmd->flags = cpu_to_le32(BT_COEX_NW_OLD);
 697
 698         bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ctl_kill_msk[ack_kill_msk]);
 699         bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_ctl_kill_msk[cts_kill_msk]);
 700         bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
 701                                              BT_VALID_KILL_ACK |
 702                                              BT_VALID_KILL_CTS);
 703
 704         ret = iwl_mvm_send_cmd(mvm, &cmd);
 705
 706         kfree(bt_cmd);
 707         return ret;
 708 }
 709
 710 static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
 711                                        bool enable)
 712 {
 713         struct iwl_bt_coex_cmd_old *bt_cmd;
 714         /* Send ASYNC since this can be sent from an atomic context */
 715         struct iwl_host_cmd cmd = {
 716                 .id = BT_CONFIG,
 717                 .len = { sizeof(*bt_cmd), },
 718                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
 719                 .flags = CMD_ASYNC,
 720         };
 721         struct iwl_mvm_sta *mvmsta;
 722         int ret;
 723
 724         mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
 725         if (!mvmsta)
 726                 return 0;
 727
 728         /* nothing to do */
 729         if (mvmsta->bt_reduced_txpower == enable)
 730                 return 0;
 731
 732         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC);
 733         if (!bt_cmd)
 734                 return -ENOMEM;
 735         cmd.data[0] = bt_cmd;
 736         bt_cmd->flags = cpu_to_le32(BT_COEX_NW_OLD);
 737
 738         bt_cmd->valid_bit_msk =
 739                 cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER);
 740         bt_cmd->bt_reduced_tx_power = sta_id;
 741
 742         if (enable)
 743                 bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT;
 744
 745         IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
 746                        enable ? "en" : "dis", sta_id);
 747
 748         mvmsta->bt_reduced_txpower = enable;
 749
 750         ret = iwl_mvm_send_cmd(mvm, &cmd);
 751
 752         kfree(bt_cmd);
 753         return ret;
 754 }
 755
 756 struct iwl_bt_iterator_data {
 757         struct iwl_bt_coex_profile_notif_old *notif;
 758         struct iwl_mvm *mvm;
 759         struct ieee80211_chanctx_conf *primary;
 760         struct ieee80211_chanctx_conf *secondary;
 761         bool primary_ll;
 762 };
 763
 764 static inline
 765 void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
 766                                        struct ieee80211_vif *vif,
 767                                        bool enable, int rssi)
 768 {
 769         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 770
 771         mvmvif->bf_data.last_bt_coex_event = rssi;
 772         mvmvif->bf_data.bt_coex_max_thold =
 773                 enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0;
 774         mvmvif->bf_data.bt_coex_min_thold =
 775                 enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0;
 776 }
 777
 778 /* must be called under rcu_read_lock */
 779 static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 780                                       struct ieee80211_vif *vif)
 781 {
 782         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 783         struct iwl_bt_iterator_data *data = _data;
 784         struct iwl_mvm *mvm = data->mvm;
 785         struct ieee80211_chanctx_conf *chanctx_conf;
 786         enum ieee80211_smps_mode smps_mode;
 787         u32 bt_activity_grading;
 788         int ave_rssi;
 789
 790         lockdep_assert_held(&mvm->mutex);
 791
 792         switch (vif->type) {
 793         case NL80211_IFTYPE_STATION:
 794                 /* default smps_mode for BSS / P2P client is AUTOMATIC */
 795                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 796                 break;
 797         case NL80211_IFTYPE_AP:
 798                 if (!mvmvif->ap_ibss_active)
 799                         return;
 800                 break;
 801         default:
 802                 return;
 803         }
 804
 805         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 806
 807         /* If channel context is invalid or not on 2.4GHz .. */
 808         if ((!chanctx_conf ||
 809              chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) {
 810                 if (vif->type == NL80211_IFTYPE_STATION) {
 811                         /* ... relax constraints and disable rssi events */
 812                         iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 813                                             smps_mode);
 814                         iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
 815                                                     false);
 816                         iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 817                 }
 818                 return;
 819         }
 820
 821         bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
 822         if (bt_activity_grading >= BT_HIGH_TRAFFIC)
 823                 smps_mode = IEEE80211_SMPS_STATIC;
 824         else if (bt_activity_grading >= BT_LOW_TRAFFIC)
 825                 smps_mode = vif->type == NL80211_IFTYPE_AP ?
 826                                 IEEE80211_SMPS_OFF :
 827                                 IEEE80211_SMPS_DYNAMIC;
 828
 829         /* relax SMPS contraints for next association */
 830         if (!vif->bss_conf.assoc)
 831                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 832
 833         IWL_DEBUG_COEX(data->mvm,
 834                        "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n",
 835                        mvmvif->id, data->notif->bt_status, bt_activity_grading,
 836                        smps_mode);
 837
 838         if (vif->type == NL80211_IFTYPE_STATION)
 839                 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 840                                     smps_mode);
 841
 842         /* low latency is always primary */
 843         if (iwl_mvm_vif_low_latency(mvmvif)) {
 844                 data->primary_ll = true;
 845
 846                 data->secondary = data->primary;
 847                 data->primary = chanctx_conf;
 848         }
 849
 850         if (vif->type == NL80211_IFTYPE_AP) {
 851                 if (!mvmvif->ap_ibss_active)
 852                         return;
 853
 854                 if (chanctx_conf == data->primary)
 855                         return;
 856
 857                 if (!data->primary_ll) {
 858                         /*
 859                          * downgrade the current primary no matter what its
 860                          * type is.
 861                          */
 862                         data->secondary = data->primary;
 863                         data->primary = chanctx_conf;
 864                 } else {
 865                         /* there is low latency vif - we will be secondary */
 866                         data->secondary = chanctx_conf;
 867                 }
 868                 return;
 869         }
 870
 871         /*
 872          * STA / P2P Client, try to be primary if first vif. If we are in low
 873          * latency mode, we are already in primary and just don't do much
 874          */
 875         if (!data->primary || data->primary == chanctx_conf)
 876                 data->primary = chanctx_conf;
 877         else if (!data->secondary)
 878                 /* if secondary is not NULL, it might be a GO */
 879                 data->secondary = chanctx_conf;
 880
 881         /*
 882          * don't reduce the Tx power if one of these is true:
 883          *  we are in LOOSE
 884          *  single share antenna product
 885          *  BT is active
 886          *  we are associated
 887          */
 888         if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
 889             mvm->cfg->bt_shared_single_ant || !vif->bss_conf.assoc ||
 890             !data->notif->bt_status) {
 891                 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false);
 892                 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 893                 return;
 894         }
 895
 896         /* try to get the avg rssi from fw */
 897         ave_rssi = mvmvif->bf_data.ave_beacon_signal;
 898
 899         /* if the RSSI isn't valid, fake it is very low */
 900         if (!ave_rssi)
 901                 ave_rssi = -100;
 902         if (ave_rssi > -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH) {
 903                 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true))
 904                         IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 905         } else if (ave_rssi < -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH) {
 906                 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
 907                         IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 908         }
 909
 910         /* Begin to monitor the RSSI: it may influence the reduced Tx power */
 911         iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
 912 }
 913
 914 static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
 915 {
 916         struct iwl_bt_iterator_data data = {
 917                 .mvm = mvm,
 918                 .notif = &mvm->last_bt_notif_old,
 919         };
 920         struct iwl_bt_coex_ci_cmd_old cmd = {};
 921         u8 ci_bw_idx;
 922
 923         /* Ignore updates if we are in force mode */
 924         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
 925                 return;
 926
 927         rcu_read_lock();
 928         ieee80211_iterate_active_interfaces_atomic(
 929                                         mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 930                                         iwl_mvm_bt_notif_iterator, &data);
 931
 932         if (data.primary) {
 933                 struct ieee80211_chanctx_conf *chan = data.primary;
 934
 935                 if (WARN_ON(!chan->def.chan)) {
 936                         rcu_read_unlock();
 937                         return;
 938                 }
 939
 940                 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
 941                         ci_bw_idx = 0;
 942                         cmd.co_run_bw_primary = 0;
 943                 } else {
 944                         cmd.co_run_bw_primary = 1;
 945                         if (chan->def.center_freq1 >
 946                             chan->def.chan->center_freq)
 947                                 ci_bw_idx = 2;
 948                         else
 949                                 ci_bw_idx = 1;
 950                 }
 951
 952                 cmd.bt_primary_ci =
 953                         iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
 954                 cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv);
 955         }
 956
 957         if (data.secondary) {
 958                 struct ieee80211_chanctx_conf *chan = data.secondary;
 959
 960                 if (WARN_ON(!data.secondary->def.chan)) {
 961                         rcu_read_unlock();
 962                         return;
 963                 }
 964
 965                 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
 966                         ci_bw_idx = 0;
 967                         cmd.co_run_bw_secondary = 0;
 968                 } else {
 969                         cmd.co_run_bw_secondary = 1;
 970                         if (chan->def.center_freq1 >
 971                             chan->def.chan->center_freq)
 972                                 ci_bw_idx = 2;
 973                         else
 974                                 ci_bw_idx = 1;
 975                 }
 976
 977                 cmd.bt_secondary_ci =
 978                         iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
 979                 cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv);
 980         }
 981
 982         rcu_read_unlock();
 983
 984         /* Don't spam the fw with the same command over and over */
 985         if (memcmp(&cmd, &mvm->last_bt_ci_cmd_old, sizeof(cmd))) {
 986                 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0,
 987                                          sizeof(cmd), &cmd))
 988                         IWL_ERR(mvm, "Failed to send BT_CI cmd\n");
 989                 memcpy(&mvm->last_bt_ci_cmd_old, &cmd, sizeof(cmd));
 990         }
 991
 992         if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm))
 993                 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
 994 }
 995
 996 int iwl_mvm_rx_bt_coex_notif_old(struct iwl_mvm *mvm,
 997                                  struct iwl_rx_cmd_buffer *rxb,
 998                                  struct iwl_device_cmd *dev_cmd)
 999 {
1000         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1001         struct iwl_bt_coex_profile_notif_old *notif = (void *)pkt->data;
1002
1003         IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
1004         IWL_DEBUG_COEX(mvm, "\tBT status: %s\n",
1005                        notif->bt_status ? "ON" : "OFF");
1006         IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn);
1007         IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
1008         IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
1009                        le32_to_cpu(notif->primary_ch_lut));
1010         IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
1011                        le32_to_cpu(notif->secondary_ch_lut));
1012         IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
1013                        le32_to_cpu(notif->bt_activity_grading));
1014         IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n",
1015                        notif->bt_agg_traffic_load);
1016
1017         /* remember this notification for future use: rssi fluctuations */
1018         memcpy(&mvm->last_bt_notif_old, notif, sizeof(mvm->last_bt_notif_old));
1019
1020         iwl_mvm_bt_coex_notif_handle(mvm);
1021
1022         /*
1023          * This is an async handler for a notification, returning anything other
1024          * than 0 doesn't make sense even if HCMD failed.
1025          */
1026         return 0;
1027 }
1028
1029 static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
1030                                      struct ieee80211_vif *vif)
1031 {
1032         struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1033         struct iwl_bt_iterator_data *data = _data;
1034         struct iwl_mvm *mvm = data->mvm;
1035
1036         struct ieee80211_sta *sta;
1037         struct iwl_mvm_sta *mvmsta;
1038
1039         struct ieee80211_chanctx_conf *chanctx_conf;
1040
1041         rcu_read_lock();
1042         chanctx_conf = rcu_dereference(vif->chanctx_conf);
1043         /* If channel context is invalid or not on 2.4GHz - don't count it */
1044         if (!chanctx_conf ||
1045             chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
1046                 rcu_read_unlock();
1047                 return;
1048         }
1049         rcu_read_unlock();
1050
1051         if (vif->type != NL80211_IFTYPE_STATION ||
1052             mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1053                 return;
1054
1055         sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1056                                         lockdep_is_held(&mvm->mutex));
1057
1058         /* This can happen if the station has been removed right now */
1059         if (IS_ERR_OR_NULL(sta))
1060                 return;
1061
1062         mvmsta = iwl_mvm_sta_from_mac80211(sta);
1063 }
1064
1065 void iwl_mvm_bt_rssi_event_old(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1066                                enum ieee80211_rssi_event rssi_event)
1067 {
1068         struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
1069         struct iwl_bt_iterator_data data = {
1070                 .mvm = mvm,
1071         };
1072         int ret;
1073
1074         lockdep_assert_held(&mvm->mutex);
1075
1076         /* Ignore updates if we are in force mode */
1077         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1078                 return;
1079
1080         /*
1081          * Rssi update while not associated - can happen since the statistics
1082          * are handled asynchronously
1083          */
1084         if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
1085                 return;
1086
1087         /* No BT - reports should be disabled */
1088         if (!mvm->last_bt_notif_old.bt_status)
1089                 return;
1090
1091         IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
1092                        rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
1093
1094         /*
1095          * Check if rssi is good enough for reduced Tx power, but not in loose
1096          * scheme.
1097          */
1098         if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
1099             iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
1100                 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
1101                                                   false);
1102         else
1103                 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true);
1104
1105         if (ret)
1106                 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
1107
1108         ieee80211_iterate_active_interfaces_atomic(
1109                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1110                 iwl_mvm_bt_rssi_iterator, &data);
1111
1112         if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm))
1113                 IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
1114 }
1115
1116 #define LINK_QUAL_AGG_TIME_LIMIT_DEF    (4000)
1117 #define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
1118
1119 u16 iwl_mvm_coex_agg_time_limit_old(struct iwl_mvm *mvm,
1120                                     struct ieee80211_sta *sta)
1121 {
1122         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1123         enum iwl_bt_coex_lut_type lut_type;
1124
1125         if (le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading) <
1126             BT_HIGH_TRAFFIC)
1127                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1128
1129         if (mvm->last_bt_notif_old.ttc_enabled)
1130                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1131
1132         lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1133
1134         if (lut_type == BT_COEX_LOOSE_LUT || lut_type == BT_COEX_INVALID_LUT)
1135                 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
1136
1137         /* tight coex, high bt traffic, reduce AGG time limit */
1138         return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
1139 }
1140
1141 bool iwl_mvm_bt_coex_is_mimo_allowed_old(struct iwl_mvm *mvm,
1142                                          struct ieee80211_sta *sta)
1143 {
1144         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1145         enum iwl_bt_coex_lut_type lut_type;
1146
1147         if (mvm->last_bt_notif_old.ttc_enabled)
1148                 return true;
1149
1150         if (le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading) <
1151             BT_HIGH_TRAFFIC)
1152                 return true;
1153
1154         /*
1155          * In Tight / TxTxDis, BT can't Rx while we Tx, so use both antennas
1156          * since BT is already killed.
1157          * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while
1158          * we Tx.
1159          * When we are in 5GHz, we'll get BT_COEX_INVALID_LUT allowing MIMO.
1160          */
1161         lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
1162         return lut_type != BT_COEX_LOOSE_LUT;
1163 }
1164
1165 bool iwl_mvm_bt_coex_is_shared_ant_avail_old(struct iwl_mvm *mvm)
1166 {
1167         u32 ag = le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading);
1168         return ag == BT_OFF;
1169 }
1170
1171 bool iwl_mvm_bt_coex_is_tpc_allowed_old(struct iwl_mvm *mvm,
1172                                         enum ieee80211_band band)
1173 {
1174         u32 bt_activity =
1175                 le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading);
1176
1177         if (band != IEEE80211_BAND_2GHZ)
1178                 return false;
1179
1180         return bt_activity >= BT_LOW_TRAFFIC;
1181 }
1182
1183 void iwl_mvm_bt_coex_vif_change_old(struct iwl_mvm *mvm)
1184 {
1185         iwl_mvm_bt_coex_notif_handle(mvm);
1186 }
1187
1188 int iwl_mvm_rx_ant_coupling_notif_old(struct iwl_mvm *mvm,
1189                                       struct iwl_rx_cmd_buffer *rxb,
1190                                       struct iwl_device_cmd *dev_cmd)
1191 {
1192         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1193         u32 ant_isolation = le32_to_cpup((void *)pkt->data);
1194         u8 __maybe_unused lower_bound, upper_bound;
1195         int ret;
1196         u8 lut;
1197
1198         struct iwl_bt_coex_cmd_old *bt_cmd;
1199         struct iwl_host_cmd cmd = {
1200                 .id = BT_CONFIG,
1201                 .len = { sizeof(*bt_cmd), },
1202                 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
1203         };
1204
1205         if (!IWL_MVM_BT_COEX_CORUNNING)
1206                 return 0;
1207
1208         lockdep_assert_held(&mvm->mutex);
1209
1210         /* Ignore updates if we are in force mode */
1211         if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
1212                 return 0;
1213
1214         if (ant_isolation ==  mvm->last_ant_isol)
1215                 return 0;
1216
1217         for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++)
1218                 if (ant_isolation < antenna_coupling_ranges[lut + 1].range)
1219                         break;
1220
1221         lower_bound = antenna_coupling_ranges[lut].range;
1222
1223         if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1)
1224                 upper_bound = antenna_coupling_ranges[lut + 1].range;
1225         else
1226                 upper_bound = antenna_coupling_ranges[lut].range;
1227
1228         IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n",
1229                        ant_isolation, lower_bound, upper_bound, lut);
1230
1231         mvm->last_ant_isol = ant_isolation;
1232
1233         if (mvm->last_corun_lut == lut)
1234                 return 0;
1235
1236         mvm->last_corun_lut = lut;
1237
1238         bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
1239         if (!bt_cmd)
1240                 return 0;
1241         cmd.data[0] = bt_cmd;
1242
1243         bt_cmd->flags = cpu_to_le32(BT_COEX_NW_OLD);
1244         bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
1245                                              BT_VALID_CORUN_LUT_20 |
1246                                              BT_VALID_CORUN_LUT_40);
1247
1248         /* For the moment, use the same LUT for 20GHz and 40GHz */
1249         memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[lut].lut20,
1250                sizeof(bt_cmd->bt4_corun_lut20));
1251
1252         memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[lut].lut20,
1253                sizeof(bt_cmd->bt4_corun_lut40));
1254
1255         ret = iwl_mvm_send_cmd(mvm, &cmd);
1256
1257         kfree(bt_cmd);
1258         return ret;
1259 }