sound/soc/intel/haswell/sst-haswell-pcm.c

   1 /*
   2  * Intel SST Haswell/Broadwell PCM Support
   3  *
   4  * Copyright (C) 2013, Intel Corporation. All rights reserved.
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License version
   8  * 2 as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  */
  16
  17 #include <linux/module.h>
  18 #include <linux/dma-mapping.h>
  19 #include <linux/slab.h>
  20 #include <linux/delay.h>
  21 #include <linux/pm_runtime.h>
  22 #include <asm/page.h>
  23 #include <asm/pgtable.h>
  24 #include <sound/core.h>
  25 #include <sound/pcm.h>
  26 #include <sound/pcm_params.h>
  27 #include <sound/dmaengine_pcm.h>
  28 #include <sound/soc.h>
  29 #include <sound/tlv.h>
  30 #include <sound/compress_driver.h>
  31
  32 #include "../haswell/sst-haswell-ipc.h"
  33 #include "../common/sst-dsp-priv.h"
  34 #include "../common/sst-dsp.h"
  35
  36 #define HSW_PCM_COUNT           6
  37 #define HSW_VOLUME_MAX          0x7FFFFFFF      /* 0dB */
  38
  39 #define SST_OLD_POSITION(d, r, o) ((d) +                \
  40                         frames_to_bytes(r, o))
  41 #define SST_SAMPLES(r, x) (bytes_to_samples(r,  \
  42                         frames_to_bytes(r, (x))))
  43
  44 /* simple volume table */
  45 static const u32 volume_map[] = {
  46         HSW_VOLUME_MAX >> 30,
  47         HSW_VOLUME_MAX >> 29,
  48         HSW_VOLUME_MAX >> 28,
  49         HSW_VOLUME_MAX >> 27,
  50         HSW_VOLUME_MAX >> 26,
  51         HSW_VOLUME_MAX >> 25,
  52         HSW_VOLUME_MAX >> 24,
  53         HSW_VOLUME_MAX >> 23,
  54         HSW_VOLUME_MAX >> 22,
  55         HSW_VOLUME_MAX >> 21,
  56         HSW_VOLUME_MAX >> 20,
  57         HSW_VOLUME_MAX >> 19,
  58         HSW_VOLUME_MAX >> 18,
  59         HSW_VOLUME_MAX >> 17,
  60         HSW_VOLUME_MAX >> 16,
  61         HSW_VOLUME_MAX >> 15,
  62         HSW_VOLUME_MAX >> 14,
  63         HSW_VOLUME_MAX >> 13,
  64         HSW_VOLUME_MAX >> 12,
  65         HSW_VOLUME_MAX >> 11,
  66         HSW_VOLUME_MAX >> 10,
  67         HSW_VOLUME_MAX >> 9,
  68         HSW_VOLUME_MAX >> 8,
  69         HSW_VOLUME_MAX >> 7,
  70         HSW_VOLUME_MAX >> 6,
  71         HSW_VOLUME_MAX >> 5,
  72         HSW_VOLUME_MAX >> 4,
  73         HSW_VOLUME_MAX >> 3,
  74         HSW_VOLUME_MAX >> 2,
  75         HSW_VOLUME_MAX >> 1,
  76         HSW_VOLUME_MAX >> 0,
  77 };
  78
  79 #define HSW_PCM_PERIODS_MAX     64
  80 #define HSW_PCM_PERIODS_MIN     2
  81
  82 #define HSW_PCM_DAI_ID_SYSTEM   0
  83 #define HSW_PCM_DAI_ID_OFFLOAD0 1
  84 #define HSW_PCM_DAI_ID_OFFLOAD1 2
  85 #define HSW_PCM_DAI_ID_LOOPBACK 3
  86
  87
  88 static const struct snd_pcm_hardware hsw_pcm_hardware = {
  89         .info                   = SNDRV_PCM_INFO_MMAP |
  90                                   SNDRV_PCM_INFO_MMAP_VALID |
  91                                   SNDRV_PCM_INFO_INTERLEAVED |
  92                                   SNDRV_PCM_INFO_PAUSE |
  93                                   SNDRV_PCM_INFO_RESUME |
  94                                   SNDRV_PCM_INFO_NO_PERIOD_WAKEUP |
  95                                   SNDRV_PCM_INFO_DRAIN_TRIGGER,
  96         .formats                = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |
  97                                   SNDRV_PCM_FMTBIT_S32_LE,
  98         .period_bytes_min       = PAGE_SIZE,
  99         .period_bytes_max       = (HSW_PCM_PERIODS_MAX / HSW_PCM_PERIODS_MIN) * PAGE_SIZE,
 100         .periods_min            = HSW_PCM_PERIODS_MIN,
 101         .periods_max            = HSW_PCM_PERIODS_MAX,
 102         .buffer_bytes_max       = HSW_PCM_PERIODS_MAX * PAGE_SIZE,
 103 };
 104
 105 struct hsw_pcm_module_map {
 106         int dai_id;
 107         int stream;
 108         enum sst_hsw_module_id mod_id;
 109 };
 110
 111 /* private data for each PCM DSP stream */
 112 struct hsw_pcm_data {
 113         int dai_id;
 114         struct sst_hsw_stream *stream;
 115         struct sst_module_runtime *runtime;
 116         struct sst_module_runtime_context context;
 117         struct snd_pcm *hsw_pcm;
 118         u32 volume[2];
 119         struct snd_pcm_substream *substream;
 120         struct snd_compr_stream *cstream;
 121         unsigned int wpos;
 122         struct mutex mutex;
 123         bool allocated;
 124         int persistent_offset;
 125 };
 126
 127 enum hsw_pm_state {
 128         HSW_PM_STATE_D0 = 0,
 129         HSW_PM_STATE_RTD3 = 1,
 130         HSW_PM_STATE_D3 = 2,
 131 };
 132
 133 /* private data for the driver */
 134 struct hsw_priv_data {
 135         /* runtime DSP */
 136         struct sst_hsw *hsw;
 137         struct device *dev;
 138         enum hsw_pm_state pm_state;
 139         struct snd_soc_card *soc_card;
 140         struct sst_module_runtime *runtime_waves; /* sound effect module */
 141
 142         /* page tables */
 143         struct snd_dma_buffer dmab[HSW_PCM_COUNT][2];
 144
 145         /* DAI data */
 146         struct hsw_pcm_data pcm[HSW_PCM_COUNT][2];
 147 };
 148
 149
 150 /* static mappings between PCMs and modules - may be dynamic in future */
 151 static struct hsw_pcm_module_map mod_map[] = {
 152         {HSW_PCM_DAI_ID_SYSTEM, 0, SST_HSW_MODULE_PCM_SYSTEM},
 153         {HSW_PCM_DAI_ID_OFFLOAD0, 0, SST_HSW_MODULE_PCM},
 154         {HSW_PCM_DAI_ID_OFFLOAD1, 0, SST_HSW_MODULE_PCM},
 155         {HSW_PCM_DAI_ID_LOOPBACK, 1, SST_HSW_MODULE_PCM_REFERENCE},
 156         {HSW_PCM_DAI_ID_SYSTEM, 1, SST_HSW_MODULE_PCM_CAPTURE},
 157 };
 158
 159 static u32 hsw_notify_pointer(struct sst_hsw_stream *stream, void *data);
 160
 161 static inline u32 hsw_mixer_to_ipc(unsigned int value)
 162 {
 163         if (value >= ARRAY_SIZE(volume_map))
 164                 return volume_map[0];
 165         else
 166                 return volume_map[value];
 167 }
 168
 169 static inline unsigned int hsw_ipc_to_mixer(u32 value)
 170 {
 171         int i;
 172
 173         for (i = 0; i < ARRAY_SIZE(volume_map); i++) {
 174                 if (volume_map[i] >= value)
 175                         return i;
 176         }
 177
 178         return i - 1;
 179 }
 180
 181 static int hsw_stream_volume_put(struct snd_kcontrol *kcontrol,
 182                                 struct snd_ctl_elem_value *ucontrol)
 183 {
 184         struct snd_soc_platform *platform = snd_soc_kcontrol_platform(kcontrol);
 185         struct soc_mixer_control *mc =
 186                 (struct soc_mixer_control *)kcontrol->private_value;
 187         struct hsw_priv_data *pdata =
 188                 snd_soc_platform_get_drvdata(platform);
 189         struct hsw_pcm_data *pcm_data;
 190         struct sst_hsw *hsw = pdata->hsw;
 191         u32 volume;
 192         int dai, stream;
 193
 194         dai = mod_map[mc->reg].dai_id;
 195         stream = mod_map[mc->reg].stream;
 196         pcm_data = &pdata->pcm[dai][stream];
 197
 198         mutex_lock(&pcm_data->mutex);
 199         pm_runtime_get_sync(pdata->dev);
 200
 201         if (!pcm_data->stream) {
 202                 pcm_data->volume[0] =
 203                         hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
 204                 pcm_data->volume[1] =
 205                         hsw_mixer_to_ipc(ucontrol->value.integer.value[1]);
 206                 pm_runtime_mark_last_busy(pdata->dev);
 207                 pm_runtime_put_autosuspend(pdata->dev);
 208                 mutex_unlock(&pcm_data->mutex);
 209                 return 0;
 210         }
 211
 212         if (ucontrol->value.integer.value[0] ==
 213                 ucontrol->value.integer.value[1]) {
 214                 volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
 215                 /* apply volume value to all channels */
 216                 sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0, SST_HSW_CHANNELS_ALL, volume);
 217         } else {
 218                 volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
 219                 sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0, 0, volume);
 220                 volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[1]);
 221                 sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0, 1, volume);
 222         }
 223
 224         pm_runtime_mark_last_busy(pdata->dev);
 225         pm_runtime_put_autosuspend(pdata->dev);
 226         mutex_unlock(&pcm_data->mutex);
 227         return 0;
 228 }
 229
 230 static int hsw_stream_volume_get(struct snd_kcontrol *kcontrol,
 231                                 struct snd_ctl_elem_value *ucontrol)
 232 {
 233         struct snd_soc_platform *platform = snd_soc_kcontrol_platform(kcontrol);
 234         struct soc_mixer_control *mc =
 235                 (struct soc_mixer_control *)kcontrol->private_value;
 236         struct hsw_priv_data *pdata =
 237                 snd_soc_platform_get_drvdata(platform);
 238         struct hsw_pcm_data *pcm_data;
 239         struct sst_hsw *hsw = pdata->hsw;
 240         u32 volume;
 241         int dai, stream;
 242
 243         dai = mod_map[mc->reg].dai_id;
 244         stream = mod_map[mc->reg].stream;
 245         pcm_data = &pdata->pcm[dai][stream];
 246
 247         mutex_lock(&pcm_data->mutex);
 248         pm_runtime_get_sync(pdata->dev);
 249
 250         if (!pcm_data->stream) {
 251                 ucontrol->value.integer.value[0] =
 252                         hsw_ipc_to_mixer(pcm_data->volume[0]);
 253                 ucontrol->value.integer.value[1] =
 254                         hsw_ipc_to_mixer(pcm_data->volume[1]);
 255                 pm_runtime_mark_last_busy(pdata->dev);
 256                 pm_runtime_put_autosuspend(pdata->dev);
 257                 mutex_unlock(&pcm_data->mutex);
 258                 return 0;
 259         }
 260
 261         sst_hsw_stream_get_volume(hsw, pcm_data->stream, 0, 0, &volume);
 262         ucontrol->value.integer.value[0] = hsw_ipc_to_mixer(volume);
 263         sst_hsw_stream_get_volume(hsw, pcm_data->stream, 0, 1, &volume);
 264         ucontrol->value.integer.value[1] = hsw_ipc_to_mixer(volume);
 265
 266         pm_runtime_mark_last_busy(pdata->dev);
 267         pm_runtime_put_autosuspend(pdata->dev);
 268         mutex_unlock(&pcm_data->mutex);
 269
 270         return 0;
 271 }
 272
 273 static int hsw_volume_put(struct snd_kcontrol *kcontrol,
 274                                 struct snd_ctl_elem_value *ucontrol)
 275 {
 276         struct snd_soc_platform *platform = snd_soc_kcontrol_platform(kcontrol);
 277         struct hsw_priv_data *pdata = snd_soc_platform_get_drvdata(platform);
 278         struct sst_hsw *hsw = pdata->hsw;
 279         u32 volume;
 280
 281         pm_runtime_get_sync(pdata->dev);
 282
 283         if (ucontrol->value.integer.value[0] ==
 284                 ucontrol->value.integer.value[1]) {
 285
 286                 volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
 287                 sst_hsw_mixer_set_volume(hsw, 0, SST_HSW_CHANNELS_ALL, volume);
 288
 289         } else {
 290                 volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
 291                 sst_hsw_mixer_set_volume(hsw, 0, 0, volume);
 292
 293                 volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[1]);
 294                 sst_hsw_mixer_set_volume(hsw, 0, 1, volume);
 295         }
 296
 297         pm_runtime_mark_last_busy(pdata->dev);
 298         pm_runtime_put_autosuspend(pdata->dev);
 299         return 0;
 300 }
 301
 302 static int hsw_volume_get(struct snd_kcontrol *kcontrol,
 303                                 struct snd_ctl_elem_value *ucontrol)
 304 {
 305         struct snd_soc_platform *platform = snd_soc_kcontrol_platform(kcontrol);
 306         struct hsw_priv_data *pdata = snd_soc_platform_get_drvdata(platform);
 307         struct sst_hsw *hsw = pdata->hsw;
 308         unsigned int volume = 0;
 309
 310         pm_runtime_get_sync(pdata->dev);
 311         sst_hsw_mixer_get_volume(hsw, 0, 0, &volume);
 312         ucontrol->value.integer.value[0] = hsw_ipc_to_mixer(volume);
 313
 314         sst_hsw_mixer_get_volume(hsw, 0, 1, &volume);
 315         ucontrol->value.integer.value[1] = hsw_ipc_to_mixer(volume);
 316
 317         pm_runtime_mark_last_busy(pdata->dev);
 318         pm_runtime_put_autosuspend(pdata->dev);
 319         return 0;
 320 }
 321
 322 static int hsw_waves_switch_get(struct snd_kcontrol *kcontrol,
 323                                 struct snd_ctl_elem_value *ucontrol)
 324 {
 325         struct snd_soc_platform *platform = snd_soc_kcontrol_platform(kcontrol);
 326         struct hsw_priv_data *pdata = snd_soc_platform_get_drvdata(platform);
 327         struct sst_hsw *hsw = pdata->hsw;
 328         enum sst_hsw_module_id id = SST_HSW_MODULE_WAVES;
 329
 330         ucontrol->value.integer.value[0] =
 331                 (sst_hsw_is_module_active(hsw, id) ||
 332                 sst_hsw_is_module_enabled_rtd3(hsw, id));
 333         return 0;
 334 }
 335
 336 static int hsw_waves_switch_put(struct snd_kcontrol *kcontrol,
 337                                 struct snd_ctl_elem_value *ucontrol)
 338 {
 339         struct snd_soc_platform *platform = snd_soc_kcontrol_platform(kcontrol);
 340         struct hsw_priv_data *pdata = snd_soc_platform_get_drvdata(platform);
 341         struct sst_hsw *hsw = pdata->hsw;
 342         int ret = 0;
 343         enum sst_hsw_module_id id = SST_HSW_MODULE_WAVES;
 344         bool switch_on = (bool)ucontrol->value.integer.value[0];
 345
 346         /* if module is in RAM on the DSP, apply user settings to module through
 347          * ipc. If module is not in RAM on the DSP, store user setting for
 348          * track */
 349         if (sst_hsw_is_module_loaded(hsw, id)) {
 350                 if (switch_on == sst_hsw_is_module_active(hsw, id))
 351                         return 0;
 352
 353                 if (switch_on)
 354                         ret = sst_hsw_module_enable(hsw, id, 0);
 355                 else
 356                         ret = sst_hsw_module_disable(hsw, id, 0);
 357         } else {
 358                 if (switch_on == sst_hsw_is_module_enabled_rtd3(hsw, id))
 359                         return 0;
 360
 361                 if (switch_on)
 362                         sst_hsw_set_module_enabled_rtd3(hsw, id);
 363                 else
 364                         sst_hsw_set_module_disabled_rtd3(hsw, id);
 365         }
 366
 367         return ret;
 368 }
 369
 370 static int hsw_waves_param_get(struct snd_kcontrol *kcontrol,
 371                                 struct snd_ctl_elem_value *ucontrol)
 372 {
 373         struct snd_soc_platform *platform = snd_soc_kcontrol_platform(kcontrol);
 374         struct hsw_priv_data *pdata = snd_soc_platform_get_drvdata(platform);
 375         struct sst_hsw *hsw = pdata->hsw;
 376
 377         /* return a matching line from param buffer */
 378         return sst_hsw_load_param_line(hsw, ucontrol->value.bytes.data);
 379 }
 380
 381 static int hsw_waves_param_put(struct snd_kcontrol *kcontrol,
 382                                 struct snd_ctl_elem_value *ucontrol)
 383 {
 384         struct snd_soc_platform *platform = snd_soc_kcontrol_platform(kcontrol);
 385         struct hsw_priv_data *pdata = snd_soc_platform_get_drvdata(platform);
 386         struct sst_hsw *hsw = pdata->hsw;
 387         int ret;
 388         enum sst_hsw_module_id id = SST_HSW_MODULE_WAVES;
 389         int param_id = ucontrol->value.bytes.data[0];
 390         int param_size = WAVES_PARAM_COUNT;
 391
 392         /* clear param buffer and reset buffer index */
 393         if (param_id == 0xFF) {
 394                 sst_hsw_reset_param_buf(hsw);
 395                 return 0;
 396         }
 397
 398         /* store params into buffer */
 399         ret = sst_hsw_store_param_line(hsw, ucontrol->value.bytes.data);
 400         if (ret < 0)
 401                 return ret;
 402
 403         if (sst_hsw_is_module_active(hsw, id))
 404                 ret = sst_hsw_module_set_param(hsw, id, 0, param_id,
 405                                 param_size, ucontrol->value.bytes.data);
 406         return ret;
 407 }
 408
 409 /* TLV used by both global and stream volumes */
 410 static const DECLARE_TLV_DB_SCALE(hsw_vol_tlv, -9000, 300, 1);
 411
 412 /* System Pin has no volume control */
 413 static const struct snd_kcontrol_new hsw_volume_controls[] = {
 414         /* Global DSP volume */
 415         SOC_DOUBLE_EXT_TLV("Master Playback Volume", 0, 0, 8,
 416                 ARRAY_SIZE(volume_map) - 1, 0,
 417                 hsw_volume_get, hsw_volume_put, hsw_vol_tlv),
 418         /* Offload 0 volume */
 419         SOC_DOUBLE_EXT_TLV("Media0 Playback Volume", 1, 0, 8,
 420                 ARRAY_SIZE(volume_map) - 1, 0,
 421                 hsw_stream_volume_get, hsw_stream_volume_put, hsw_vol_tlv),
 422         /* Offload 1 volume */
 423         SOC_DOUBLE_EXT_TLV("Media1 Playback Volume", 2, 0, 8,
 424                 ARRAY_SIZE(volume_map) - 1, 0,
 425                 hsw_stream_volume_get, hsw_stream_volume_put, hsw_vol_tlv),
 426         /* Mic Capture volume */
 427         SOC_DOUBLE_EXT_TLV("Mic Capture Volume", 4, 0, 8,
 428                 ARRAY_SIZE(volume_map) - 1, 0,
 429                 hsw_stream_volume_get, hsw_stream_volume_put, hsw_vol_tlv),
 430         /* enable/disable module waves */
 431         SOC_SINGLE_BOOL_EXT("Waves Switch", 0,
 432                 hsw_waves_switch_get, hsw_waves_switch_put),
 433         /* set parameters to module waves */
 434         SND_SOC_BYTES_EXT("Waves Set Param", WAVES_PARAM_COUNT,
 435                 hsw_waves_param_get, hsw_waves_param_put),
 436 };
 437
 438 /* Create DMA buffer page table for DSP */
 439 static int create_adsp_page_table(struct snd_pcm_substream *substream,
 440         struct hsw_priv_data *pdata, struct snd_soc_pcm_runtime *rtd,
 441         unsigned char *dma_area, size_t size, int pcm)
 442 {
 443         struct snd_dma_buffer *dmab = snd_pcm_get_dma_buf(substream);
 444         int i, pages, stream = substream->stream;
 445
 446         pages = snd_sgbuf_aligned_pages(size);
 447
 448         dev_dbg(rtd->dev, "generating page table for %p size 0x%zx pages %d\n",
 449                 dma_area, size, pages);
 450
 451         for (i = 0; i < pages; i++) {
 452                 u32 idx = (((i << 2) + i)) >> 1;
 453                 u32 pfn = snd_sgbuf_get_addr(dmab, i * PAGE_SIZE) >> PAGE_SHIFT;
 454                 u32 *pg_table;
 455
 456                 dev_dbg(rtd->dev, "pfn i %i idx %d pfn %x\n", i, idx, pfn);
 457
 458                 pg_table = (u32 *)(pdata->dmab[pcm][stream].area + idx);
 459
 460                 if (i & 1)
 461                         *pg_table |= (pfn << 4);
 462                 else
 463                         *pg_table |= pfn;
 464         }
 465
 466         return 0;
 467 }
 468
 469 /* this may get called several times by oss emulation */
 470 static int hsw_pcm_hw_params(struct snd_pcm_substream *substream,
 471                               struct snd_pcm_hw_params *params)
 472 {
 473         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 474         struct snd_pcm_runtime *runtime = substream->runtime;
 475         struct hsw_priv_data *pdata =
 476                 snd_soc_platform_get_drvdata(rtd->platform);
 477         struct hsw_pcm_data *pcm_data;
 478         struct sst_hsw *hsw = pdata->hsw;
 479         struct sst_module *module_data;
 480         struct sst_dsp *dsp;
 481         struct snd_dma_buffer *dmab;
 482         enum sst_hsw_stream_type stream_type;
 483         enum sst_hsw_stream_path_id path_id;
 484         u32 rate, bits, map, pages, module_id;
 485         u8 channels;
 486         int ret, dai;
 487
 488         dai = mod_map[rtd->cpu_dai->id].dai_id;
 489         pcm_data = &pdata->pcm[dai][substream->stream];
 490
 491         /* check if we are being called a subsequent time */
 492         if (pcm_data->allocated) {
 493                 ret = sst_hsw_stream_reset(hsw, pcm_data->stream);
 494                 if (ret < 0)
 495                         dev_dbg(rtd->dev, "error: reset stream failed %d\n",
 496                                 ret);
 497
 498                 ret = sst_hsw_stream_free(hsw, pcm_data->stream);
 499                 if (ret < 0) {
 500                         dev_dbg(rtd->dev, "error: free stream failed %d\n",
 501                                 ret);
 502                         return ret;
 503                 }
 504                 pcm_data->allocated = false;
 505
 506                 pcm_data->stream = sst_hsw_stream_new(hsw, rtd->cpu_dai->id,
 507                         hsw_notify_pointer, pcm_data);
 508                 if (pcm_data->stream == NULL) {
 509                         dev_err(rtd->dev, "error: failed to create stream\n");
 510                         return -EINVAL;
 511                 }
 512         }
 513
 514         /* stream direction */
 515         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 516                 path_id = SST_HSW_STREAM_PATH_SSP0_OUT;
 517         else
 518                 path_id = SST_HSW_STREAM_PATH_SSP0_IN;
 519
 520         /* DSP stream type depends on DAI ID */
 521         switch (rtd->cpu_dai->id) {
 522         case 0:
 523                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 524                         stream_type = SST_HSW_STREAM_TYPE_SYSTEM;
 525                         module_id = SST_HSW_MODULE_PCM_SYSTEM;
 526                 }
 527                 else {
 528                         stream_type = SST_HSW_STREAM_TYPE_CAPTURE;
 529                         module_id = SST_HSW_MODULE_PCM_CAPTURE;
 530                 }
 531                 break;
 532         case 1:
 533         case 2:
 534                 stream_type = SST_HSW_STREAM_TYPE_RENDER;
 535                 module_id = SST_HSW_MODULE_PCM;
 536                 break;
 537         case 3:
 538                 /* path ID needs to be OUT for loopback */
 539                 stream_type = SST_HSW_STREAM_TYPE_LOOPBACK;
 540                 path_id = SST_HSW_STREAM_PATH_SSP0_OUT;
 541                 module_id = SST_HSW_MODULE_PCM_REFERENCE;
 542                 break;
 543         default:
 544                 dev_err(rtd->dev, "error: invalid DAI ID %d\n",
 545                         rtd->cpu_dai->id);
 546                 return -EINVAL;
 547         };
 548
 549         ret = sst_hsw_stream_format(hsw, pcm_data->stream,
 550                 path_id, stream_type, SST_HSW_STREAM_FORMAT_PCM_FORMAT);
 551         if (ret < 0) {
 552                 dev_err(rtd->dev, "error: failed to set format %d\n", ret);
 553                 return ret;
 554         }
 555
 556         rate = params_rate(params);
 557         ret = sst_hsw_stream_set_rate(hsw, pcm_data->stream, rate);
 558         if (ret < 0) {
 559                 dev_err(rtd->dev, "error: could not set rate %d\n", rate);
 560                 return ret;
 561         }
 562
 563         switch (params_format(params)) {
 564         case SNDRV_PCM_FORMAT_S16_LE:
 565                 bits = SST_HSW_DEPTH_16BIT;
 566                 sst_hsw_stream_set_valid(hsw, pcm_data->stream, 16);
 567                 break;
 568         case SNDRV_PCM_FORMAT_S24_LE:
 569                 bits = SST_HSW_DEPTH_32BIT;
 570                 sst_hsw_stream_set_valid(hsw, pcm_data->stream, 24);
 571                 break;
 572         case SNDRV_PCM_FORMAT_S8:
 573                 bits = SST_HSW_DEPTH_8BIT;
 574                 sst_hsw_stream_set_valid(hsw, pcm_data->stream, 8);
 575                 break;
 576         case SNDRV_PCM_FORMAT_S32_LE:
 577                 bits = SST_HSW_DEPTH_32BIT;
 578                 sst_hsw_stream_set_valid(hsw, pcm_data->stream, 32);
 579                 break;
 580         default:
 581                 dev_err(rtd->dev, "error: invalid format %d\n",
 582                         params_format(params));
 583                 return -EINVAL;
 584         }
 585
 586         ret = sst_hsw_stream_set_bits(hsw, pcm_data->stream, bits);
 587         if (ret < 0) {
 588                 dev_err(rtd->dev, "error: could not set bits %d\n", bits);
 589                 return ret;
 590         }
 591
 592         channels = params_channels(params);
 593         map = create_channel_map(SST_HSW_CHANNEL_CONFIG_STEREO);
 594         sst_hsw_stream_set_map_config(hsw, pcm_data->stream,
 595                         map, SST_HSW_CHANNEL_CONFIG_STEREO);
 596
 597         ret = sst_hsw_stream_set_channels(hsw, pcm_data->stream, channels);
 598         if (ret < 0) {
 599                 dev_err(rtd->dev, "error: could not set channels %d\n",
 600                         channels);
 601                 return ret;
 602         }
 603
 604         ret = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
 605         if (ret < 0) {
 606                 dev_err(rtd->dev, "error: could not allocate %d bytes for PCM %d\n",
 607                         params_buffer_bytes(params), ret);
 608                 return ret;
 609         }
 610
 611         dmab = snd_pcm_get_dma_buf(substream);
 612
 613         ret = create_adsp_page_table(substream, pdata, rtd, runtime->dma_area,
 614                 runtime->dma_bytes, rtd->cpu_dai->id);
 615         if (ret < 0)
 616                 return ret;
 617
 618         sst_hsw_stream_set_style(hsw, pcm_data->stream,
 619                 SST_HSW_INTERLEAVING_PER_CHANNEL);
 620
 621         if (runtime->dma_bytes % PAGE_SIZE)
 622                 pages = (runtime->dma_bytes / PAGE_SIZE) + 1;
 623         else
 624                 pages = runtime->dma_bytes / PAGE_SIZE;
 625
 626         ret = sst_hsw_stream_buffer(hsw, pcm_data->stream,
 627                 pdata->dmab[rtd->cpu_dai->id][substream->stream].addr,
 628                 pages, runtime->dma_bytes, 0,
 629                 snd_sgbuf_get_addr(dmab, 0) >> PAGE_SHIFT);
 630         if (ret < 0) {
 631                 dev_err(rtd->dev, "error: failed to set DMA buffer %d\n", ret);
 632                 return ret;
 633         }
 634
 635         dsp = sst_hsw_get_dsp(hsw);
 636
 637         module_data = sst_module_get_from_id(dsp, module_id);
 638         if (module_data == NULL) {
 639                 dev_err(rtd->dev, "error: failed to get module config\n");
 640                 return -EINVAL;
 641         }
 642
 643         sst_hsw_stream_set_module_info(hsw, pcm_data->stream,
 644                 pcm_data->runtime);
 645
 646         ret = sst_hsw_stream_commit(hsw, pcm_data->stream);
 647         if (ret < 0) {
 648                 dev_err(rtd->dev, "error: failed to commit stream %d\n", ret);
 649                 return ret;
 650         }
 651
 652         if (!pcm_data->allocated) {
 653                 /* Set previous saved volume */
 654                 sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0,
 655                                 0, pcm_data->volume[0]);
 656                 sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0,
 657                                 1, pcm_data->volume[1]);
 658                 pcm_data->allocated = true;
 659         }
 660
 661         ret = sst_hsw_stream_pause(hsw, pcm_data->stream, 1);
 662         if (ret < 0)
 663                 dev_err(rtd->dev, "error: failed to pause %d\n", ret);
 664
 665         return 0;
 666 }
 667
 668 static int hsw_pcm_hw_free(struct snd_pcm_substream *substream)
 669 {
 670         snd_pcm_lib_free_pages(substream);
 671         return 0;
 672 }
 673
 674 static int hsw_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 675 {
 676         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 677         struct hsw_priv_data *pdata =
 678                 snd_soc_platform_get_drvdata(rtd->platform);
 679         struct hsw_pcm_data *pcm_data;
 680         struct sst_hsw_stream *sst_stream;
 681         struct sst_hsw *hsw = pdata->hsw;
 682         struct snd_pcm_runtime *runtime = substream->runtime;
 683         snd_pcm_uframes_t pos;
 684         int dai;
 685
 686         dai = mod_map[rtd->cpu_dai->id].dai_id;
 687         pcm_data = &pdata->pcm[dai][substream->stream];
 688         sst_stream = pcm_data->stream;
 689
 690         switch (cmd) {
 691         case SNDRV_PCM_TRIGGER_START:
 692         case SNDRV_PCM_TRIGGER_RESUME:
 693         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 694                 sst_hsw_stream_set_silence_start(hsw, sst_stream, false);
 695                 sst_hsw_stream_resume(hsw, pcm_data->stream, 0);
 696                 break;
 697         case SNDRV_PCM_TRIGGER_STOP:
 698         case SNDRV_PCM_TRIGGER_SUSPEND:
 699         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 700                 sst_hsw_stream_set_silence_start(hsw, sst_stream, false);
 701                 sst_hsw_stream_pause(hsw, pcm_data->stream, 0);
 702                 break;
 703         case SNDRV_PCM_TRIGGER_DRAIN:
 704                 pos = runtime->control->appl_ptr % runtime->buffer_size;
 705                 sst_hsw_stream_set_old_position(hsw, pcm_data->stream, pos);
 706                 sst_hsw_stream_set_silence_start(hsw, sst_stream, true);
 707                 break;
 708         default:
 709                 break;
 710         }
 711
 712         return 0;
 713 }
 714
 715 static u32 hsw_notify_pointer(struct sst_hsw_stream *stream, void *data)
 716 {
 717         struct hsw_pcm_data *pcm_data = data;
 718         struct snd_pcm_substream *substream = pcm_data->substream;
 719         struct snd_pcm_runtime *runtime = substream->runtime;
 720         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 721         struct hsw_priv_data *pdata =
 722                 snd_soc_platform_get_drvdata(rtd->platform);
 723         struct sst_hsw *hsw = pdata->hsw;
 724         u32 pos;
 725         snd_pcm_uframes_t position = bytes_to_frames(runtime,
 726                  sst_hsw_get_dsp_position(hsw, pcm_data->stream));
 727         unsigned char *dma_area = runtime->dma_area;
 728         snd_pcm_uframes_t dma_frames =
 729                 bytes_to_frames(runtime, runtime->dma_bytes);
 730         snd_pcm_uframes_t old_position;
 731         ssize_t samples;
 732
 733         pos = frames_to_bytes(runtime,
 734                 (runtime->control->appl_ptr % runtime->buffer_size));
 735
 736         dev_vdbg(rtd->dev, "PCM: App pointer %d bytes\n", pos);
 737
 738         /* SST fw don't know where to stop dma
 739          * So, SST driver need to clean the data which has been consumed
 740          */
 741         if (dma_area == NULL || dma_frames <= 0
 742                 || (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
 743                 || !sst_hsw_stream_get_silence_start(hsw, stream)) {
 744                 snd_pcm_period_elapsed(substream);
 745                 return pos;
 746         }
 747
 748         old_position = sst_hsw_stream_get_old_position(hsw, stream);
 749         if (position > old_position) {
 750                 if (position < dma_frames) {
 751                         samples = SST_SAMPLES(runtime, position - old_position);
 752                         snd_pcm_format_set_silence(runtime->format,
 753                                 SST_OLD_POSITION(dma_area,
 754                                         runtime, old_position),
 755                                 samples);
 756                 } else
 757                         dev_err(rtd->dev, "PCM: position is wrong\n");
 758         } else {
 759                 if (old_position < dma_frames) {
 760                         samples = SST_SAMPLES(runtime,
 761                                 dma_frames - old_position);
 762                         snd_pcm_format_set_silence(runtime->format,
 763                                 SST_OLD_POSITION(dma_area,
 764                                         runtime, old_position),
 765                                 samples);
 766                 } else
 767                         dev_err(rtd->dev, "PCM: dma_bytes is wrong\n");
 768                 if (position < dma_frames) {
 769                         samples = SST_SAMPLES(runtime, position);
 770                         snd_pcm_format_set_silence(runtime->format,
 771                                 dma_area, samples);
 772                 } else
 773                         dev_err(rtd->dev, "PCM: position is wrong\n");
 774         }
 775         sst_hsw_stream_set_old_position(hsw, stream, position);
 776
 777         /* let alsa know we have play a period */
 778         snd_pcm_period_elapsed(substream);
 779         return pos;
 780 }
 781
 782 static snd_pcm_uframes_t hsw_pcm_pointer(struct snd_pcm_substream *substream)
 783 {
 784         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 785         struct snd_pcm_runtime *runtime = substream->runtime;
 786         struct hsw_priv_data *pdata =
 787                 snd_soc_platform_get_drvdata(rtd->platform);
 788         struct hsw_pcm_data *pcm_data;
 789         struct sst_hsw *hsw = pdata->hsw;
 790         snd_pcm_uframes_t offset;
 791         uint64_t ppos;
 792         u32 position;
 793         int dai;
 794
 795         dai = mod_map[rtd->cpu_dai->id].dai_id;
 796         pcm_data = &pdata->pcm[dai][substream->stream];
 797         position = sst_hsw_get_dsp_position(hsw, pcm_data->stream);
 798
 799         offset = bytes_to_frames(runtime, position);
 800         ppos = sst_hsw_get_dsp_presentation_position(hsw, pcm_data->stream);
 801
 802         dev_vdbg(rtd->dev, "PCM: DMA pointer %du bytes, pos %llu\n",
 803                 position, ppos);
 804         return offset;
 805 }
 806
 807 static int hsw_pcm_open(struct snd_pcm_substream *substream)
 808 {
 809         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 810         struct hsw_priv_data *pdata =
 811                 snd_soc_platform_get_drvdata(rtd->platform);
 812         struct hsw_pcm_data *pcm_data;
 813         struct sst_hsw *hsw = pdata->hsw;
 814         int dai;
 815
 816         dai = mod_map[rtd->cpu_dai->id].dai_id;
 817         pcm_data = &pdata->pcm[dai][substream->stream];
 818
 819         mutex_lock(&pcm_data->mutex);
 820         pm_runtime_get_sync(pdata->dev);
 821
 822         pcm_data->substream = substream;
 823
 824         snd_soc_set_runtime_hwparams(substream, &hsw_pcm_hardware);
 825
 826         pcm_data->stream = sst_hsw_stream_new(hsw, rtd->cpu_dai->id,
 827                 hsw_notify_pointer, pcm_data);
 828         if (pcm_data->stream == NULL) {
 829                 dev_err(rtd->dev, "error: failed to create stream\n");
 830                 pm_runtime_mark_last_busy(pdata->dev);
 831                 pm_runtime_put_autosuspend(pdata->dev);
 832                 mutex_unlock(&pcm_data->mutex);
 833                 return -EINVAL;
 834         }
 835
 836         mutex_unlock(&pcm_data->mutex);
 837         return 0;
 838 }
 839
 840 static int hsw_pcm_close(struct snd_pcm_substream *substream)
 841 {
 842         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 843         struct hsw_priv_data *pdata =
 844                 snd_soc_platform_get_drvdata(rtd->platform);
 845         struct hsw_pcm_data *pcm_data;
 846         struct sst_hsw *hsw = pdata->hsw;
 847         int ret, dai;
 848
 849         dai = mod_map[rtd->cpu_dai->id].dai_id;
 850         pcm_data = &pdata->pcm[dai][substream->stream];
 851
 852         mutex_lock(&pcm_data->mutex);
 853         ret = sst_hsw_stream_reset(hsw, pcm_data->stream);
 854         if (ret < 0) {
 855                 dev_dbg(rtd->dev, "error: reset stream failed %d\n", ret);
 856                 goto out;
 857         }
 858
 859         ret = sst_hsw_stream_free(hsw, pcm_data->stream);
 860         if (ret < 0) {
 861                 dev_dbg(rtd->dev, "error: free stream failed %d\n", ret);
 862                 goto out;
 863         }
 864         pcm_data->allocated = 0;
 865         pcm_data->stream = NULL;
 866
 867 out:
 868         pm_runtime_mark_last_busy(pdata->dev);
 869         pm_runtime_put_autosuspend(pdata->dev);
 870         mutex_unlock(&pcm_data->mutex);
 871         return ret;
 872 }
 873
 874 static struct snd_pcm_ops hsw_pcm_ops = {
 875         .open           = hsw_pcm_open,
 876         .close          = hsw_pcm_close,
 877         .ioctl          = snd_pcm_lib_ioctl,
 878         .hw_params      = hsw_pcm_hw_params,
 879         .hw_free        = hsw_pcm_hw_free,
 880         .trigger        = hsw_pcm_trigger,
 881         .pointer        = hsw_pcm_pointer,
 882         .page           = snd_pcm_sgbuf_ops_page,
 883 };
 884
 885 static int hsw_pcm_create_modules(struct hsw_priv_data *pdata)
 886 {
 887         struct sst_hsw *hsw = pdata->hsw;
 888         struct hsw_pcm_data *pcm_data;
 889         int i;
 890
 891         for (i = 0; i < ARRAY_SIZE(mod_map); i++) {
 892                 pcm_data = &pdata->pcm[mod_map[i].dai_id][mod_map[i].stream];
 893
 894                 /* create new runtime module, use same offset if recreated */
 895                 pcm_data->runtime = sst_hsw_runtime_module_create(hsw,
 896                         mod_map[i].mod_id, pcm_data->persistent_offset);
 897                 if (pcm_data->runtime == NULL)
 898                         goto err;
 899                 pcm_data->persistent_offset =
 900                         pcm_data->runtime->persistent_offset;
 901         }
 902
 903         /* create runtime blocks for module waves */
 904         if (sst_hsw_is_module_loaded(hsw, SST_HSW_MODULE_WAVES)) {
 905                 pdata->runtime_waves = sst_hsw_runtime_module_create(hsw,
 906                         SST_HSW_MODULE_WAVES, 0);
 907                 if (pdata->runtime_waves == NULL)
 908                         goto err;
 909         }
 910
 911         return 0;
 912
 913 err:
 914         for (--i; i >= 0; i--) {
 915                 pcm_data = &pdata->pcm[mod_map[i].dai_id][mod_map[i].stream];
 916                 sst_hsw_runtime_module_free(pcm_data->runtime);
 917         }
 918
 919         return -ENODEV;
 920 }
 921
 922 static void hsw_pcm_free_modules(struct hsw_priv_data *pdata)
 923 {
 924         struct sst_hsw *hsw = pdata->hsw;
 925         struct hsw_pcm_data *pcm_data;
 926         int i;
 927
 928         for (i = 0; i < ARRAY_SIZE(mod_map); i++) {
 929                 pcm_data = &pdata->pcm[mod_map[i].dai_id][mod_map[i].stream];
 930                 if (pcm_data->runtime){
 931                         sst_hsw_runtime_module_free(pcm_data->runtime);
 932                         pcm_data->runtime = NULL;
 933                 }
 934         }
 935         if (sst_hsw_is_module_loaded(hsw, SST_HSW_MODULE_WAVES) &&
 936                                 pdata->runtime_waves) {
 937                 sst_hsw_runtime_module_free(pdata->runtime_waves);
 938                 pdata->runtime_waves = NULL;
 939         }
 940 }
 941
 942 static int hsw_pcm_new(struct snd_soc_pcm_runtime *rtd)
 943 {
 944         struct snd_pcm *pcm = rtd->pcm;
 945         struct snd_soc_platform *platform = rtd->platform;
 946         struct sst_pdata *pdata = dev_get_platdata(platform->dev);
 947         struct hsw_priv_data *priv_data = dev_get_drvdata(platform->dev);
 948         struct device *dev = pdata->dma_dev;
 949         int ret = 0;
 950
 951         if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream ||
 952                         pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
 953                 ret = snd_pcm_lib_preallocate_pages_for_all(pcm,
 954                         SNDRV_DMA_TYPE_DEV_SG,
 955                         dev,
 956                         hsw_pcm_hardware.buffer_bytes_max,
 957                         hsw_pcm_hardware.buffer_bytes_max);
 958                 if (ret) {
 959                         dev_err(rtd->dev, "dma buffer allocation failed %d\n",
 960                                 ret);
 961                         return ret;
 962                 }
 963         }
 964         if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream)
 965                 priv_data->pcm[rtd->cpu_dai->id][SNDRV_PCM_STREAM_PLAYBACK].hsw_pcm = pcm;
 966         if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream)
 967                 priv_data->pcm[rtd->cpu_dai->id][SNDRV_PCM_STREAM_CAPTURE].hsw_pcm = pcm;
 968
 969         return ret;
 970 }
 971
 972 #define HSW_FORMATS \
 973         (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE)
 974
 975 static struct snd_soc_dai_driver hsw_dais[] = {
 976         {
 977                 .name  = "System Pin",
 978                 .id = HSW_PCM_DAI_ID_SYSTEM,
 979                 .playback = {
 980                         .stream_name = "System Playback",
 981                         .channels_min = 2,
 982                         .channels_max = 2,
 983                         .rates = SNDRV_PCM_RATE_48000,
 984                         .formats = SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE,
 985                 },
 986                 .capture = {
 987                         .stream_name = "Analog Capture",
 988                         .channels_min = 2,
 989                         .channels_max = 4,
 990                         .rates = SNDRV_PCM_RATE_48000,
 991                         .formats = SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE,
 992                 },
 993         },
 994         {
 995                 /* PCM */
 996                 .name  = "Offload0 Pin",
 997                 .id = HSW_PCM_DAI_ID_OFFLOAD0,
 998                 .playback = {
 999                         .stream_name = "Offload0 Playback",
1000                         .channels_min = 2,
1001                         .channels_max = 2,
1002                         .rates = SNDRV_PCM_RATE_8000_192000,
1003                         .formats = HSW_FORMATS,
1004                 },
1005         },
1006         {
1007                 /* PCM */
1008                 .name  = "Offload1 Pin",
1009                 .id = HSW_PCM_DAI_ID_OFFLOAD1,
1010                 .playback = {
1011                         .stream_name = "Offload1 Playback",
1012                         .channels_min = 2,
1013                         .channels_max = 2,
1014                         .rates = SNDRV_PCM_RATE_8000_192000,
1015                         .formats = HSW_FORMATS,
1016                 },
1017         },
1018         {
1019                 .name  = "Loopback Pin",
1020                 .id = HSW_PCM_DAI_ID_LOOPBACK,
1021                 .capture = {
1022                         .stream_name = "Loopback Capture",
1023                         .channels_min = 2,
1024                         .channels_max = 2,
1025                         .rates = SNDRV_PCM_RATE_48000,
1026                         .formats = SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE,
1027                 },
1028         },
1029 };
1030
1031 static const struct snd_soc_dapm_widget widgets[] = {
1032
1033         /* Backend DAIs  */
1034         SND_SOC_DAPM_AIF_IN("SSP0 CODEC IN", NULL, 0, SND_SOC_NOPM, 0, 0),
1035         SND_SOC_DAPM_AIF_OUT("SSP0 CODEC OUT", NULL, 0, SND_SOC_NOPM, 0, 0),
1036         SND_SOC_DAPM_AIF_IN("SSP1 BT IN", NULL, 0, SND_SOC_NOPM, 0, 0),
1037         SND_SOC_DAPM_AIF_OUT("SSP1 BT OUT", NULL, 0, SND_SOC_NOPM, 0, 0),
1038
1039         /* Global Playback Mixer */
1040         SND_SOC_DAPM_MIXER("Playback VMixer", SND_SOC_NOPM, 0, 0, NULL, 0),
1041 };
1042
1043 static const struct snd_soc_dapm_route graph[] = {
1044
1045         /* Playback Mixer */
1046         {"Playback VMixer", NULL, "System Playback"},
1047         {"Playback VMixer", NULL, "Offload0 Playback"},
1048         {"Playback VMixer", NULL, "Offload1 Playback"},
1049
1050         {"SSP0 CODEC OUT", NULL, "Playback VMixer"},
1051
1052         {"Analog Capture", NULL, "SSP0 CODEC IN"},
1053 };
1054
1055 static int hsw_pcm_probe(struct snd_soc_platform *platform)
1056 {
1057         struct hsw_priv_data *priv_data = snd_soc_platform_get_drvdata(platform);
1058         struct sst_pdata *pdata = dev_get_platdata(platform->dev);
1059         struct device *dma_dev, *dev;
1060         int i, ret = 0;
1061
1062         if (!pdata)
1063                 return -ENODEV;
1064
1065         dev = platform->dev;
1066         dma_dev = pdata->dma_dev;
1067
1068         priv_data->hsw = pdata->dsp;
1069         priv_data->dev = platform->dev;
1070         priv_data->pm_state = HSW_PM_STATE_D0;
1071         priv_data->soc_card = platform->component.card;
1072
1073         /* allocate DSP buffer page tables */
1074         for (i = 0; i < ARRAY_SIZE(hsw_dais); i++) {
1075
1076                 /* playback */
1077                 if (hsw_dais[i].playback.channels_min) {
1078                         mutex_init(&priv_data->pcm[i][SNDRV_PCM_STREAM_PLAYBACK].mutex);
1079                         ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, dma_dev,
1080                                 PAGE_SIZE, &priv_data->dmab[i][0]);
1081                         if (ret < 0)
1082                                 goto err;
1083                 }
1084
1085                 /* capture */
1086                 if (hsw_dais[i].capture.channels_min) {
1087                         mutex_init(&priv_data->pcm[i][SNDRV_PCM_STREAM_CAPTURE].mutex);
1088                         ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, dma_dev,
1089                                 PAGE_SIZE, &priv_data->dmab[i][1]);
1090                         if (ret < 0)
1091                                 goto err;
1092                 }
1093         }
1094
1095         /* allocate runtime modules */
1096         ret = hsw_pcm_create_modules(priv_data);
1097         if (ret < 0)
1098                 goto err;
1099
1100         /* enable runtime PM with auto suspend */
1101         pm_runtime_set_autosuspend_delay(platform->dev,
1102                 SST_RUNTIME_SUSPEND_DELAY);
1103         pm_runtime_use_autosuspend(platform->dev);
1104         pm_runtime_enable(platform->dev);
1105         pm_runtime_idle(platform->dev);
1106
1107         return 0;
1108
1109 err:
1110         for (--i; i >= 0; i--) {
1111                 if (hsw_dais[i].playback.channels_min)
1112                         snd_dma_free_pages(&priv_data->dmab[i][0]);
1113                 if (hsw_dais[i].capture.channels_min)
1114                         snd_dma_free_pages(&priv_data->dmab[i][1]);
1115         }
1116         return ret;
1117 }
1118
1119 static int hsw_pcm_remove(struct snd_soc_platform *platform)
1120 {
1121         struct hsw_priv_data *priv_data =
1122                 snd_soc_platform_get_drvdata(platform);
1123         int i;
1124
1125         pm_runtime_disable(platform->dev);
1126         hsw_pcm_free_modules(priv_data);
1127
1128         for (i = 0; i < ARRAY_SIZE(hsw_dais); i++) {
1129                 if (hsw_dais[i].playback.channels_min)
1130                         snd_dma_free_pages(&priv_data->dmab[i][0]);
1131                 if (hsw_dais[i].capture.channels_min)
1132                         snd_dma_free_pages(&priv_data->dmab[i][1]);
1133         }
1134
1135         return 0;
1136 }
1137
1138 static struct snd_soc_platform_driver hsw_soc_platform = {
1139         .probe          = hsw_pcm_probe,
1140         .remove         = hsw_pcm_remove,
1141         .ops            = &hsw_pcm_ops,
1142         .pcm_new        = hsw_pcm_new,
1143 };
1144
1145 static const struct snd_soc_component_driver hsw_dai_component = {
1146         .name = "haswell-dai",
1147         .controls = hsw_volume_controls,
1148         .num_controls = ARRAY_SIZE(hsw_volume_controls),
1149         .dapm_widgets = widgets,
1150         .num_dapm_widgets = ARRAY_SIZE(widgets),
1151         .dapm_routes = graph,
1152         .num_dapm_routes = ARRAY_SIZE(graph),
1153 };
1154
1155 static int hsw_pcm_dev_probe(struct platform_device *pdev)
1156 {
1157         struct sst_pdata *sst_pdata = dev_get_platdata(&pdev->dev);
1158         struct hsw_priv_data *priv_data;
1159         int ret;
1160
1161         if (!sst_pdata)
1162                 return -EINVAL;
1163
1164         priv_data = devm_kzalloc(&pdev->dev, sizeof(*priv_data), GFP_KERNEL);
1165         if (!priv_data)
1166                 return -ENOMEM;
1167
1168         ret = sst_hsw_dsp_init(&pdev->dev, sst_pdata);
1169         if (ret < 0)
1170                 return -ENODEV;
1171
1172         priv_data->hsw = sst_pdata->dsp;
1173         platform_set_drvdata(pdev, priv_data);
1174
1175         ret = snd_soc_register_platform(&pdev->dev, &hsw_soc_platform);
1176         if (ret < 0)
1177                 goto err_plat;
1178
1179         ret = snd_soc_register_component(&pdev->dev, &hsw_dai_component,
1180                 hsw_dais, ARRAY_SIZE(hsw_dais));
1181         if (ret < 0)
1182                 goto err_comp;
1183
1184         return 0;
1185
1186 err_comp:
1187         snd_soc_unregister_platform(&pdev->dev);
1188 err_plat:
1189         sst_hsw_dsp_free(&pdev->dev, sst_pdata);
1190         return 0;
1191 }
1192
1193 static int hsw_pcm_dev_remove(struct platform_device *pdev)
1194 {
1195         struct sst_pdata *sst_pdata = dev_get_platdata(&pdev->dev);
1196
1197         snd_soc_unregister_platform(&pdev->dev);
1198         snd_soc_unregister_component(&pdev->dev);
1199         sst_hsw_dsp_free(&pdev->dev, sst_pdata);
1200
1201         return 0;
1202 }
1203
1204 #ifdef CONFIG_PM
1205
1206 static int hsw_pcm_runtime_idle(struct device *dev)
1207 {
1208         return 0;
1209 }
1210
1211 static int hsw_pcm_suspend(struct device *dev)
1212 {
1213         struct hsw_priv_data *pdata = dev_get_drvdata(dev);
1214         struct sst_hsw *hsw = pdata->hsw;
1215
1216         /* enter D3 state and stall */
1217         sst_hsw_dsp_runtime_suspend(hsw);
1218         /* free all runtime modules */
1219         hsw_pcm_free_modules(pdata);
1220         /* put the DSP to sleep, fw unloaded after runtime modules freed */
1221         sst_hsw_dsp_runtime_sleep(hsw);
1222         return 0;
1223 }
1224
1225 static int hsw_pcm_runtime_suspend(struct device *dev)
1226 {
1227         struct hsw_priv_data *pdata = dev_get_drvdata(dev);
1228         struct sst_hsw *hsw = pdata->hsw;
1229         int ret;
1230
1231         if (pdata->pm_state >= HSW_PM_STATE_RTD3)
1232                 return 0;
1233
1234         /* fw modules will be unloaded on RTD3, set flag to track */
1235         if (sst_hsw_is_module_active(hsw, SST_HSW_MODULE_WAVES)) {
1236                 ret = sst_hsw_module_disable(hsw, SST_HSW_MODULE_WAVES, 0);
1237                 if (ret < 0)
1238                         return ret;
1239                 sst_hsw_set_module_enabled_rtd3(hsw, SST_HSW_MODULE_WAVES);
1240         }
1241         hsw_pcm_suspend(dev);
1242         pdata->pm_state = HSW_PM_STATE_RTD3;
1243
1244         return 0;
1245 }
1246
1247 static int hsw_pcm_runtime_resume(struct device *dev)
1248 {
1249         struct hsw_priv_data *pdata = dev_get_drvdata(dev);
1250         struct sst_hsw *hsw = pdata->hsw;
1251         int ret;
1252
1253         if (pdata->pm_state != HSW_PM_STATE_RTD3)
1254                 return 0;
1255
1256         ret = sst_hsw_dsp_load(hsw);
1257         if (ret < 0) {
1258                 dev_err(dev, "failed to reload %d\n", ret);
1259                 return ret;
1260         }
1261
1262         ret = hsw_pcm_create_modules(pdata);
1263         if (ret < 0) {
1264                 dev_err(dev, "failed to create modules %d\n", ret);
1265                 return ret;
1266         }
1267
1268         ret = sst_hsw_dsp_runtime_resume(hsw);
1269         if (ret < 0)
1270                 return ret;
1271         else if (ret == 1) /* no action required */
1272                 return 0;
1273
1274         /* check flag when resume */
1275         if (sst_hsw_is_module_enabled_rtd3(hsw, SST_HSW_MODULE_WAVES)) {
1276                 ret = sst_hsw_module_enable(hsw, SST_HSW_MODULE_WAVES, 0);
1277                 if (ret < 0)
1278                         return ret;
1279                 /* put parameters from buffer to dsp */
1280                 ret = sst_hsw_launch_param_buf(hsw);
1281                 if (ret < 0)
1282                         return ret;
1283                 /* unset flag */
1284                 sst_hsw_set_module_disabled_rtd3(hsw, SST_HSW_MODULE_WAVES);
1285         }
1286
1287         pdata->pm_state = HSW_PM_STATE_D0;
1288         return ret;
1289 }
1290
1291 #else
1292 #define hsw_pcm_runtime_idle            NULL
1293 #define hsw_pcm_runtime_suspend         NULL
1294 #define hsw_pcm_runtime_resume          NULL
1295 #endif
1296
1297 #ifdef CONFIG_PM
1298
1299 static void hsw_pcm_complete(struct device *dev)
1300 {
1301         struct hsw_priv_data *pdata = dev_get_drvdata(dev);
1302         struct sst_hsw *hsw = pdata->hsw;
1303         struct hsw_pcm_data *pcm_data;
1304         int i, err;
1305
1306         if (pdata->pm_state != HSW_PM_STATE_D3)
1307                 return;
1308
1309         err = sst_hsw_dsp_load(hsw);
1310         if (err < 0) {
1311                 dev_err(dev, "failed to reload %d\n", err);
1312                 return;
1313         }
1314
1315         err = hsw_pcm_create_modules(pdata);
1316         if (err < 0) {
1317                 dev_err(dev, "failed to create modules %d\n", err);
1318                 return;
1319         }
1320
1321         for (i = 0; i < ARRAY_SIZE(mod_map); i++) {
1322                 pcm_data = &pdata->pcm[mod_map[i].dai_id][mod_map[i].stream];
1323
1324                 if (!pcm_data->substream)
1325                         continue;
1326
1327                 err = sst_module_runtime_restore(pcm_data->runtime,
1328                         &pcm_data->context);
1329                 if (err < 0)
1330                         dev_err(dev, "failed to restore context for PCM %d\n", i);
1331         }
1332
1333         snd_soc_resume(pdata->soc_card->dev);
1334
1335         err = sst_hsw_dsp_runtime_resume(hsw);
1336         if (err < 0)
1337                 return;
1338         else if (err == 1) /* no action required */
1339                 return;
1340
1341         pdata->pm_state = HSW_PM_STATE_D0;
1342         return;
1343 }
1344
1345 static int hsw_pcm_prepare(struct device *dev)
1346 {
1347         struct hsw_priv_data *pdata = dev_get_drvdata(dev);
1348         struct hsw_pcm_data *pcm_data;
1349         int i, err;
1350
1351         if (pdata->pm_state == HSW_PM_STATE_D3)
1352                 return 0;
1353         else if (pdata->pm_state == HSW_PM_STATE_D0) {
1354                 /* suspend all active streams */
1355                 for (i = 0; i < ARRAY_SIZE(mod_map); i++) {
1356                         pcm_data = &pdata->pcm[mod_map[i].dai_id][mod_map[i].stream];
1357
1358                         if (!pcm_data->substream)
1359                                 continue;
1360                         dev_dbg(dev, "suspending pcm %d\n", i);
1361                         snd_pcm_suspend_all(pcm_data->hsw_pcm);
1362
1363                         /* We need to wait until the DSP FW stops the streams */
1364                         msleep(2);
1365                 }
1366
1367                 /* preserve persistent memory */
1368                 for (i = 0; i < ARRAY_SIZE(mod_map); i++) {
1369                         pcm_data = &pdata->pcm[mod_map[i].dai_id][mod_map[i].stream];
1370
1371                         if (!pcm_data->substream)
1372                                 continue;
1373
1374                         dev_dbg(dev, "saving context pcm %d\n", i);
1375                         err = sst_module_runtime_save(pcm_data->runtime,
1376                                 &pcm_data->context);
1377                         if (err < 0)
1378                                 dev_err(dev, "failed to save context for PCM %d\n", i);
1379                 }
1380                 hsw_pcm_suspend(dev);
1381         }
1382
1383         snd_soc_suspend(pdata->soc_card->dev);
1384         snd_soc_poweroff(pdata->soc_card->dev);
1385
1386         pdata->pm_state = HSW_PM_STATE_D3;
1387
1388         return 0;
1389 }
1390
1391 #else
1392 #define hsw_pcm_prepare         NULL
1393 #define hsw_pcm_complete        NULL
1394 #endif
1395
1396 static const struct dev_pm_ops hsw_pcm_pm = {
1397         .runtime_idle = hsw_pcm_runtime_idle,
1398         .runtime_suspend = hsw_pcm_runtime_suspend,
1399         .runtime_resume = hsw_pcm_runtime_resume,
1400         .prepare = hsw_pcm_prepare,
1401         .complete = hsw_pcm_complete,
1402 };
1403
1404 static struct platform_driver hsw_pcm_driver = {
1405         .driver = {
1406                 .name = "haswell-pcm-audio",
1407                 .pm = &hsw_pcm_pm,
1408         },
1409
1410         .probe = hsw_pcm_dev_probe,
1411         .remove = hsw_pcm_dev_remove,
1412 };
1413 module_platform_driver(hsw_pcm_driver);
1414
1415 MODULE_AUTHOR("Liam Girdwood, Xingchao Wang");
1416 MODULE_DESCRIPTION("Haswell/Lynxpoint + Broadwell/Wildcatpoint PCM");
1417 MODULE_LICENSE("GPL v2");
1418 MODULE_ALIAS("platform:haswell-pcm-audio");