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

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Intel SST Haswell/Broadwell PCM Support
   4  *
   5  * Copyright (C) 2013, Intel Corporation. All rights reserved.
   6  */
   7
   8 #include <linux/module.h>
   9 #include <linux/dma-mapping.h>
  10 #include <linux/slab.h>
  11 #include <linux/delay.h>
  12 #include <linux/pm_runtime.h>
  13 #include <linux/pgtable.h>
  14 #include <asm/page.h>
  15 #include <sound/core.h>
  16 #include <sound/pcm.h>
  17 #include <sound/pcm_params.h>
  18 #include <sound/dmaengine_pcm.h>
  19 #include <sound/soc.h>
  20 #include <sound/tlv.h>
  21 #include <sound/compress_driver.h>
  22
  23 #include "../haswell/sst-haswell-ipc.h"
  24 #include "../common/sst-dsp-priv.h"
  25 #include "../common/sst-dsp.h"
  26
  27 #define HSW_PCM_COUNT           6
  28 #define HSW_VOLUME_MAX          0x7FFFFFFF      /* 0dB */
  29
  30 #define SST_OLD_POSITION(d, r, o) ((d) +                \
  31                         frames_to_bytes(r, o))
  32 #define SST_SAMPLES(r, x) (bytes_to_samples(r,  \
  33                         frames_to_bytes(r, (x))))
  34
  35 /* simple volume table */
  36 static const u32 volume_map[] = {
  37         HSW_VOLUME_MAX >> 30,
  38         HSW_VOLUME_MAX >> 29,
  39         HSW_VOLUME_MAX >> 28,
  40         HSW_VOLUME_MAX >> 27,
  41         HSW_VOLUME_MAX >> 26,
  42         HSW_VOLUME_MAX >> 25,
  43         HSW_VOLUME_MAX >> 24,
  44         HSW_VOLUME_MAX >> 23,
  45         HSW_VOLUME_MAX >> 22,
  46         HSW_VOLUME_MAX >> 21,
  47         HSW_VOLUME_MAX >> 20,
  48         HSW_VOLUME_MAX >> 19,
  49         HSW_VOLUME_MAX >> 18,
  50         HSW_VOLUME_MAX >> 17,
  51         HSW_VOLUME_MAX >> 16,
  52         HSW_VOLUME_MAX >> 15,
  53         HSW_VOLUME_MAX >> 14,
  54         HSW_VOLUME_MAX >> 13,
  55         HSW_VOLUME_MAX >> 12,
  56         HSW_VOLUME_MAX >> 11,
  57         HSW_VOLUME_MAX >> 10,
  58         HSW_VOLUME_MAX >> 9,
  59         HSW_VOLUME_MAX >> 8,
  60         HSW_VOLUME_MAX >> 7,
  61         HSW_VOLUME_MAX >> 6,
  62         HSW_VOLUME_MAX >> 5,
  63         HSW_VOLUME_MAX >> 4,
  64         HSW_VOLUME_MAX >> 3,
  65         HSW_VOLUME_MAX >> 2,
  66         HSW_VOLUME_MAX >> 1,
  67         HSW_VOLUME_MAX >> 0,
  68 };
  69
  70 #define HSW_PCM_PERIODS_MAX     64
  71 #define HSW_PCM_PERIODS_MIN     2
  72
  73 #define HSW_PCM_DAI_ID_SYSTEM   0
  74 #define HSW_PCM_DAI_ID_OFFLOAD0 1
  75 #define HSW_PCM_DAI_ID_OFFLOAD1 2
  76 #define HSW_PCM_DAI_ID_LOOPBACK 3
  77
  78
  79 static const struct snd_pcm_hardware hsw_pcm_hardware = {
  80         .info                   = SNDRV_PCM_INFO_MMAP |
  81                                   SNDRV_PCM_INFO_MMAP_VALID |
  82                                   SNDRV_PCM_INFO_INTERLEAVED |
  83                                   SNDRV_PCM_INFO_PAUSE |
  84                                   SNDRV_PCM_INFO_RESUME |
  85                                   SNDRV_PCM_INFO_NO_PERIOD_WAKEUP |
  86                                   SNDRV_PCM_INFO_DRAIN_TRIGGER,
  87         .formats                = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |
  88                                   SNDRV_PCM_FMTBIT_S32_LE,
  89         .period_bytes_min       = PAGE_SIZE,
  90         .period_bytes_max       = (HSW_PCM_PERIODS_MAX / HSW_PCM_PERIODS_MIN) * PAGE_SIZE,
  91         .periods_min            = HSW_PCM_PERIODS_MIN,
  92         .periods_max            = HSW_PCM_PERIODS_MAX,
  93         .buffer_bytes_max       = HSW_PCM_PERIODS_MAX * PAGE_SIZE,
  94 };
  95
  96 struct hsw_pcm_module_map {
  97         int dai_id;
  98         int stream;
  99         enum sst_hsw_module_id mod_id;
 100 };
 101
 102 /* private data for each PCM DSP stream */
 103 struct hsw_pcm_data {
 104         int dai_id;
 105         struct sst_hsw_stream *stream;
 106         struct sst_module_runtime *runtime;
 107         struct sst_module_runtime_context context;
 108         struct snd_pcm *hsw_pcm;
 109         u32 volume[2];
 110         struct snd_pcm_substream *substream;
 111         struct snd_compr_stream *cstream;
 112         unsigned int wpos;
 113         struct mutex mutex;
 114         bool allocated;
 115         int persistent_offset;
 116 };
 117
 118 enum hsw_pm_state {
 119         HSW_PM_STATE_D0 = 0,
 120         HSW_PM_STATE_RTD3 = 1,
 121         HSW_PM_STATE_D3 = 2,
 122 };
 123
 124 /* private data for the driver */
 125 struct hsw_priv_data {
 126         /* runtime DSP */
 127         struct sst_hsw *hsw;
 128         struct device *dev;
 129         enum hsw_pm_state pm_state;
 130         struct snd_soc_card *soc_card;
 131         struct sst_module_runtime *runtime_waves; /* sound effect module */
 132
 133         /* page tables */
 134         struct snd_dma_buffer dmab[HSW_PCM_COUNT][2];
 135
 136         /* DAI data */
 137         struct hsw_pcm_data pcm[HSW_PCM_COUNT][2];
 138 };
 139
 140
 141 /* static mappings between PCMs and modules - may be dynamic in future */
 142 static struct hsw_pcm_module_map mod_map[] = {
 143         {HSW_PCM_DAI_ID_SYSTEM, 0, SST_HSW_MODULE_PCM_SYSTEM},
 144         {HSW_PCM_DAI_ID_OFFLOAD0, 0, SST_HSW_MODULE_PCM},
 145         {HSW_PCM_DAI_ID_OFFLOAD1, 0, SST_HSW_MODULE_PCM},
 146         {HSW_PCM_DAI_ID_LOOPBACK, 1, SST_HSW_MODULE_PCM_REFERENCE},
 147         {HSW_PCM_DAI_ID_SYSTEM, 1, SST_HSW_MODULE_PCM_CAPTURE},
 148 };
 149
 150 static u32 hsw_notify_pointer(struct sst_hsw_stream *stream, void *data);
 151
 152 static inline u32 hsw_mixer_to_ipc(unsigned int value)
 153 {
 154         if (value >= ARRAY_SIZE(volume_map))
 155                 return volume_map[0];
 156         else
 157                 return volume_map[value];
 158 }
 159
 160 static inline unsigned int hsw_ipc_to_mixer(u32 value)
 161 {
 162         int i;
 163
 164         for (i = 0; i < ARRAY_SIZE(volume_map); i++) {
 165                 if (volume_map[i] >= value)
 166                         return i;
 167         }
 168
 169         return i - 1;
 170 }
 171
 172 static int hsw_stream_volume_put(struct snd_kcontrol *kcontrol,
 173                                 struct snd_ctl_elem_value *ucontrol)
 174 {
 175         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 176         struct soc_mixer_control *mc =
 177                 (struct soc_mixer_control *)kcontrol->private_value;
 178         struct hsw_priv_data *pdata =
 179                 snd_soc_component_get_drvdata(component);
 180         struct hsw_pcm_data *pcm_data;
 181         struct sst_hsw *hsw = pdata->hsw;
 182         u32 volume;
 183         int dai, stream;
 184
 185         dai = mod_map[mc->reg].dai_id;
 186         stream = mod_map[mc->reg].stream;
 187         pcm_data = &pdata->pcm[dai][stream];
 188
 189         mutex_lock(&pcm_data->mutex);
 190         pm_runtime_get_sync(pdata->dev);
 191
 192         if (!pcm_data->stream) {
 193                 pcm_data->volume[0] =
 194                         hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
 195                 pcm_data->volume[1] =
 196                         hsw_mixer_to_ipc(ucontrol->value.integer.value[1]);
 197                 pm_runtime_mark_last_busy(pdata->dev);
 198                 pm_runtime_put_autosuspend(pdata->dev);
 199                 mutex_unlock(&pcm_data->mutex);
 200                 return 0;
 201         }
 202
 203         if (ucontrol->value.integer.value[0] ==
 204                 ucontrol->value.integer.value[1]) {
 205                 volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
 206                 /* apply volume value to all channels */
 207                 sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0, SST_HSW_CHANNELS_ALL, volume);
 208         } else {
 209                 volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
 210                 sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0, 0, volume);
 211                 volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[1]);
 212                 sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0, 1, volume);
 213         }
 214
 215         pm_runtime_mark_last_busy(pdata->dev);
 216         pm_runtime_put_autosuspend(pdata->dev);
 217         mutex_unlock(&pcm_data->mutex);
 218         return 0;
 219 }
 220
 221 static int hsw_stream_volume_get(struct snd_kcontrol *kcontrol,
 222                                 struct snd_ctl_elem_value *ucontrol)
 223 {
 224         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 225         struct soc_mixer_control *mc =
 226                 (struct soc_mixer_control *)kcontrol->private_value;
 227         struct hsw_priv_data *pdata =
 228                 snd_soc_component_get_drvdata(component);
 229         struct hsw_pcm_data *pcm_data;
 230         struct sst_hsw *hsw = pdata->hsw;
 231         u32 volume;
 232         int dai, stream;
 233
 234         dai = mod_map[mc->reg].dai_id;
 235         stream = mod_map[mc->reg].stream;
 236         pcm_data = &pdata->pcm[dai][stream];
 237
 238         mutex_lock(&pcm_data->mutex);
 239         pm_runtime_get_sync(pdata->dev);
 240
 241         if (!pcm_data->stream) {
 242                 ucontrol->value.integer.value[0] =
 243                         hsw_ipc_to_mixer(pcm_data->volume[0]);
 244                 ucontrol->value.integer.value[1] =
 245                         hsw_ipc_to_mixer(pcm_data->volume[1]);
 246                 pm_runtime_mark_last_busy(pdata->dev);
 247                 pm_runtime_put_autosuspend(pdata->dev);
 248                 mutex_unlock(&pcm_data->mutex);
 249                 return 0;
 250         }
 251
 252         sst_hsw_stream_get_volume(hsw, pcm_data->stream, 0, 0, &volume);
 253         ucontrol->value.integer.value[0] = hsw_ipc_to_mixer(volume);
 254         sst_hsw_stream_get_volume(hsw, pcm_data->stream, 0, 1, &volume);
 255         ucontrol->value.integer.value[1] = hsw_ipc_to_mixer(volume);
 256
 257         pm_runtime_mark_last_busy(pdata->dev);
 258         pm_runtime_put_autosuspend(pdata->dev);
 259         mutex_unlock(&pcm_data->mutex);
 260
 261         return 0;
 262 }
 263
 264 static int hsw_volume_put(struct snd_kcontrol *kcontrol,
 265                                 struct snd_ctl_elem_value *ucontrol)
 266 {
 267         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 268         struct hsw_priv_data *pdata = snd_soc_component_get_drvdata(component);
 269         struct sst_hsw *hsw = pdata->hsw;
 270         u32 volume;
 271
 272         pm_runtime_get_sync(pdata->dev);
 273
 274         if (ucontrol->value.integer.value[0] ==
 275                 ucontrol->value.integer.value[1]) {
 276
 277                 volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
 278                 sst_hsw_mixer_set_volume(hsw, 0, SST_HSW_CHANNELS_ALL, volume);
 279
 280         } else {
 281                 volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
 282                 sst_hsw_mixer_set_volume(hsw, 0, 0, volume);
 283
 284                 volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[1]);
 285                 sst_hsw_mixer_set_volume(hsw, 0, 1, volume);
 286         }
 287
 288         pm_runtime_mark_last_busy(pdata->dev);
 289         pm_runtime_put_autosuspend(pdata->dev);
 290         return 0;
 291 }
 292
 293 static int hsw_volume_get(struct snd_kcontrol *kcontrol,
 294                                 struct snd_ctl_elem_value *ucontrol)
 295 {
 296         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 297         struct hsw_priv_data *pdata = snd_soc_component_get_drvdata(component);
 298         struct sst_hsw *hsw = pdata->hsw;
 299         unsigned int volume = 0;
 300
 301         pm_runtime_get_sync(pdata->dev);
 302         sst_hsw_mixer_get_volume(hsw, 0, 0, &volume);
 303         ucontrol->value.integer.value[0] = hsw_ipc_to_mixer(volume);
 304
 305         sst_hsw_mixer_get_volume(hsw, 0, 1, &volume);
 306         ucontrol->value.integer.value[1] = hsw_ipc_to_mixer(volume);
 307
 308         pm_runtime_mark_last_busy(pdata->dev);
 309         pm_runtime_put_autosuspend(pdata->dev);
 310         return 0;
 311 }
 312
 313 static int hsw_waves_switch_get(struct snd_kcontrol *kcontrol,
 314                                 struct snd_ctl_elem_value *ucontrol)
 315 {
 316         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 317         struct hsw_priv_data *pdata = snd_soc_component_get_drvdata(component);
 318         struct sst_hsw *hsw = pdata->hsw;
 319         enum sst_hsw_module_id id = SST_HSW_MODULE_WAVES;
 320
 321         ucontrol->value.integer.value[0] =
 322                 (sst_hsw_is_module_active(hsw, id) ||
 323                 sst_hsw_is_module_enabled_rtd3(hsw, id));
 324         return 0;
 325 }
 326
 327 static int hsw_waves_switch_put(struct snd_kcontrol *kcontrol,
 328                                 struct snd_ctl_elem_value *ucontrol)
 329 {
 330         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 331         struct hsw_priv_data *pdata = snd_soc_component_get_drvdata(component);
 332         struct sst_hsw *hsw = pdata->hsw;
 333         int ret = 0;
 334         enum sst_hsw_module_id id = SST_HSW_MODULE_WAVES;
 335         bool switch_on = (bool)ucontrol->value.integer.value[0];
 336
 337         /* if module is in RAM on the DSP, apply user settings to module through
 338          * ipc. If module is not in RAM on the DSP, store user setting for
 339          * track */
 340         if (sst_hsw_is_module_loaded(hsw, id)) {
 341                 if (switch_on == sst_hsw_is_module_active(hsw, id))
 342                         return 0;
 343
 344                 if (switch_on)
 345                         ret = sst_hsw_module_enable(hsw, id, 0);
 346                 else
 347                         ret = sst_hsw_module_disable(hsw, id, 0);
 348         } else {
 349                 if (switch_on == sst_hsw_is_module_enabled_rtd3(hsw, id))
 350                         return 0;
 351
 352                 if (switch_on)
 353                         sst_hsw_set_module_enabled_rtd3(hsw, id);
 354                 else
 355                         sst_hsw_set_module_disabled_rtd3(hsw, id);
 356         }
 357
 358         return ret;
 359 }
 360
 361 static int hsw_waves_param_get(struct snd_kcontrol *kcontrol,
 362                                 struct snd_ctl_elem_value *ucontrol)
 363 {
 364         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 365         struct hsw_priv_data *pdata = snd_soc_component_get_drvdata(component);
 366         struct sst_hsw *hsw = pdata->hsw;
 367
 368         /* return a matching line from param buffer */
 369         return sst_hsw_load_param_line(hsw, ucontrol->value.bytes.data);
 370 }
 371
 372 static int hsw_waves_param_put(struct snd_kcontrol *kcontrol,
 373                                 struct snd_ctl_elem_value *ucontrol)
 374 {
 375         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 376         struct hsw_priv_data *pdata = snd_soc_component_get_drvdata(component);
 377         struct sst_hsw *hsw = pdata->hsw;
 378         int ret;
 379         enum sst_hsw_module_id id = SST_HSW_MODULE_WAVES;
 380         int param_id = ucontrol->value.bytes.data[0];
 381         int param_size = WAVES_PARAM_COUNT;
 382
 383         /* clear param buffer and reset buffer index */
 384         if (param_id == 0xFF) {
 385                 sst_hsw_reset_param_buf(hsw);
 386                 return 0;
 387         }
 388
 389         /* store params into buffer */
 390         ret = sst_hsw_store_param_line(hsw, ucontrol->value.bytes.data);
 391         if (ret < 0)
 392                 return ret;
 393
 394         if (sst_hsw_is_module_active(hsw, id))
 395                 ret = sst_hsw_module_set_param(hsw, id, 0, param_id,
 396                                 param_size, ucontrol->value.bytes.data);
 397         return ret;
 398 }
 399
 400 /* TLV used by both global and stream volumes */
 401 static const DECLARE_TLV_DB_SCALE(hsw_vol_tlv, -9000, 300, 1);
 402
 403 /* System Pin has no volume control */
 404 static const struct snd_kcontrol_new hsw_volume_controls[] = {
 405         /* Global DSP volume */
 406         SOC_DOUBLE_EXT_TLV("Master Playback Volume", 0, 0, 8,
 407                 ARRAY_SIZE(volume_map) - 1, 0,
 408                 hsw_volume_get, hsw_volume_put, hsw_vol_tlv),
 409         /* Offload 0 volume */
 410         SOC_DOUBLE_EXT_TLV("Media0 Playback Volume", 1, 0, 8,
 411                 ARRAY_SIZE(volume_map) - 1, 0,
 412                 hsw_stream_volume_get, hsw_stream_volume_put, hsw_vol_tlv),
 413         /* Offload 1 volume */
 414         SOC_DOUBLE_EXT_TLV("Media1 Playback Volume", 2, 0, 8,
 415                 ARRAY_SIZE(volume_map) - 1, 0,
 416                 hsw_stream_volume_get, hsw_stream_volume_put, hsw_vol_tlv),
 417         /* Mic Capture volume */
 418         SOC_DOUBLE_EXT_TLV("Mic Capture Volume", 4, 0, 8,
 419                 ARRAY_SIZE(volume_map) - 1, 0,
 420                 hsw_stream_volume_get, hsw_stream_volume_put, hsw_vol_tlv),
 421         /* enable/disable module waves */
 422         SOC_SINGLE_BOOL_EXT("Waves Switch", 0,
 423                 hsw_waves_switch_get, hsw_waves_switch_put),
 424         /* set parameters to module waves */
 425         SND_SOC_BYTES_EXT("Waves Set Param", WAVES_PARAM_COUNT,
 426                 hsw_waves_param_get, hsw_waves_param_put),
 427 };
 428
 429 /* Create DMA buffer page table for DSP */
 430 static int create_adsp_page_table(struct snd_pcm_substream *substream,
 431         struct hsw_priv_data *pdata, struct snd_soc_pcm_runtime *rtd,
 432         unsigned char *dma_area, size_t size, int pcm)
 433 {
 434         struct snd_dma_buffer *dmab = snd_pcm_get_dma_buf(substream);
 435         int i, pages, stream = substream->stream;
 436
 437         pages = snd_sgbuf_aligned_pages(size);
 438
 439         dev_dbg(rtd->dev, "generating page table for %p size 0x%zx pages %d\n",
 440                 dma_area, size, pages);
 441
 442         for (i = 0; i < pages; i++) {
 443                 u32 idx = (((i << 2) + i)) >> 1;
 444                 u32 pfn = snd_sgbuf_get_addr(dmab, i * PAGE_SIZE) >> PAGE_SHIFT;
 445                 u32 *pg_table;
 446
 447                 dev_dbg(rtd->dev, "pfn i %i idx %d pfn %x\n", i, idx, pfn);
 448
 449                 pg_table = (u32 *)(pdata->dmab[pcm][stream].area + idx);
 450
 451                 if (i & 1)
 452                         *pg_table |= (pfn << 4);
 453                 else
 454                         *pg_table |= pfn;
 455         }
 456
 457         return 0;
 458 }
 459
 460 /* this may get called several times by oss emulation */
 461 static int hsw_pcm_hw_params(struct snd_soc_component *component,
 462                              struct snd_pcm_substream *substream,
 463                              struct snd_pcm_hw_params *params)
 464 {
 465         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 466         struct snd_pcm_runtime *runtime = substream->runtime;
 467         struct hsw_priv_data *pdata = snd_soc_component_get_drvdata(component);
 468         struct hsw_pcm_data *pcm_data;
 469         struct sst_hsw *hsw = pdata->hsw;
 470         struct sst_module *module_data;
 471         struct sst_dsp *dsp;
 472         struct snd_dma_buffer *dmab;
 473         enum sst_hsw_stream_type stream_type;
 474         enum sst_hsw_stream_path_id path_id;
 475         u32 rate, bits, map, pages, module_id;
 476         u8 channels;
 477         int ret, dai;
 478
 479         dai = mod_map[asoc_rtd_to_cpu(rtd, 0)->id].dai_id;
 480         pcm_data = &pdata->pcm[dai][substream->stream];
 481
 482         /* check if we are being called a subsequent time */
 483         if (pcm_data->allocated) {
 484                 ret = sst_hsw_stream_reset(hsw, pcm_data->stream);
 485                 if (ret < 0)
 486                         dev_dbg(rtd->dev, "error: reset stream failed %d\n",
 487                                 ret);
 488
 489                 ret = sst_hsw_stream_free(hsw, pcm_data->stream);
 490                 if (ret < 0) {
 491                         dev_dbg(rtd->dev, "error: free stream failed %d\n",
 492                                 ret);
 493                         return ret;
 494                 }
 495                 pcm_data->allocated = false;
 496
 497                 pcm_data->stream = sst_hsw_stream_new(hsw, asoc_rtd_to_cpu(rtd, 0)->id,
 498                         hsw_notify_pointer, pcm_data);
 499                 if (pcm_data->stream == NULL) {
 500                         dev_err(rtd->dev, "error: failed to create stream\n");
 501                         return -EINVAL;
 502                 }
 503         }
 504
 505         /* stream direction */
 506         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 507                 path_id = SST_HSW_STREAM_PATH_SSP0_OUT;
 508         else
 509                 path_id = SST_HSW_STREAM_PATH_SSP0_IN;
 510
 511         /* DSP stream type depends on DAI ID */
 512         switch (asoc_rtd_to_cpu(rtd, 0)->id) {
 513         case 0:
 514                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 515                         stream_type = SST_HSW_STREAM_TYPE_SYSTEM;
 516                         module_id = SST_HSW_MODULE_PCM_SYSTEM;
 517                 }
 518                 else {
 519                         stream_type = SST_HSW_STREAM_TYPE_CAPTURE;
 520                         module_id = SST_HSW_MODULE_PCM_CAPTURE;
 521                 }
 522                 break;
 523         case 1:
 524         case 2:
 525                 stream_type = SST_HSW_STREAM_TYPE_RENDER;
 526                 module_id = SST_HSW_MODULE_PCM;
 527                 break;
 528         case 3:
 529                 /* path ID needs to be OUT for loopback */
 530                 stream_type = SST_HSW_STREAM_TYPE_LOOPBACK;
 531                 path_id = SST_HSW_STREAM_PATH_SSP0_OUT;
 532                 module_id = SST_HSW_MODULE_PCM_REFERENCE;
 533                 break;
 534         default:
 535                 dev_err(rtd->dev, "error: invalid DAI ID %d\n",
 536                         asoc_rtd_to_cpu(rtd, 0)->id);
 537                 return -EINVAL;
 538         }
 539
 540         ret = sst_hsw_stream_format(hsw, pcm_data->stream,
 541                 path_id, stream_type, SST_HSW_STREAM_FORMAT_PCM_FORMAT);
 542         if (ret < 0) {
 543                 dev_err(rtd->dev, "error: failed to set format %d\n", ret);
 544                 return ret;
 545         }
 546
 547         rate = params_rate(params);
 548         ret = sst_hsw_stream_set_rate(hsw, pcm_data->stream, rate);
 549         if (ret < 0) {
 550                 dev_err(rtd->dev, "error: could not set rate %d\n", rate);
 551                 return ret;
 552         }
 553
 554         switch (params_format(params)) {
 555         case SNDRV_PCM_FORMAT_S16_LE:
 556                 bits = SST_HSW_DEPTH_16BIT;
 557                 sst_hsw_stream_set_valid(hsw, pcm_data->stream, 16);
 558                 break;
 559         case SNDRV_PCM_FORMAT_S24_LE:
 560                 bits = SST_HSW_DEPTH_32BIT;
 561                 sst_hsw_stream_set_valid(hsw, pcm_data->stream, 24);
 562                 break;
 563         case SNDRV_PCM_FORMAT_S8:
 564                 bits = SST_HSW_DEPTH_8BIT;
 565                 sst_hsw_stream_set_valid(hsw, pcm_data->stream, 8);
 566                 break;
 567         case SNDRV_PCM_FORMAT_S32_LE:
 568                 bits = SST_HSW_DEPTH_32BIT;
 569                 sst_hsw_stream_set_valid(hsw, pcm_data->stream, 32);
 570                 break;
 571         default:
 572                 dev_err(rtd->dev, "error: invalid format %d\n",
 573                         params_format(params));
 574                 return -EINVAL;
 575         }
 576
 577         ret = sst_hsw_stream_set_bits(hsw, pcm_data->stream, bits);
 578         if (ret < 0) {
 579                 dev_err(rtd->dev, "error: could not set bits %d\n", bits);
 580                 return ret;
 581         }
 582
 583         channels = params_channels(params);
 584         map = create_channel_map(SST_HSW_CHANNEL_CONFIG_STEREO);
 585         sst_hsw_stream_set_map_config(hsw, pcm_data->stream,
 586                         map, SST_HSW_CHANNEL_CONFIG_STEREO);
 587
 588         ret = sst_hsw_stream_set_channels(hsw, pcm_data->stream, channels);
 589         if (ret < 0) {
 590                 dev_err(rtd->dev, "error: could not set channels %d\n",
 591                         channels);
 592                 return ret;
 593         }
 594
 595         dmab = snd_pcm_get_dma_buf(substream);
 596
 597         ret = create_adsp_page_table(substream, pdata, rtd, runtime->dma_area,
 598                 runtime->dma_bytes, asoc_rtd_to_cpu(rtd, 0)->id);
 599         if (ret < 0)
 600                 return ret;
 601
 602         sst_hsw_stream_set_style(hsw, pcm_data->stream,
 603                 SST_HSW_INTERLEAVING_PER_CHANNEL);
 604
 605         if (runtime->dma_bytes % PAGE_SIZE)
 606                 pages = (runtime->dma_bytes / PAGE_SIZE) + 1;
 607         else
 608                 pages = runtime->dma_bytes / PAGE_SIZE;
 609
 610         ret = sst_hsw_stream_buffer(hsw, pcm_data->stream,
 611                 pdata->dmab[asoc_rtd_to_cpu(rtd, 0)->id][substream->stream].addr,
 612                 pages, runtime->dma_bytes, 0,
 613                 snd_sgbuf_get_addr(dmab, 0) >> PAGE_SHIFT);
 614         if (ret < 0) {
 615                 dev_err(rtd->dev, "error: failed to set DMA buffer %d\n", ret);
 616                 return ret;
 617         }
 618
 619         dsp = sst_hsw_get_dsp(hsw);
 620
 621         module_data = sst_module_get_from_id(dsp, module_id);
 622         if (module_data == NULL) {
 623                 dev_err(rtd->dev, "error: failed to get module config\n");
 624                 return -EINVAL;
 625         }
 626
 627         sst_hsw_stream_set_module_info(hsw, pcm_data->stream,
 628                 pcm_data->runtime);
 629
 630         ret = sst_hsw_stream_commit(hsw, pcm_data->stream);
 631         if (ret < 0) {
 632                 dev_err(rtd->dev, "error: failed to commit stream %d\n", ret);
 633                 return ret;
 634         }
 635
 636         if (!pcm_data->allocated) {
 637                 /* Set previous saved volume */
 638                 sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0,
 639                                 0, pcm_data->volume[0]);
 640                 sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0,
 641                                 1, pcm_data->volume[1]);
 642                 pcm_data->allocated = true;
 643         }
 644
 645         ret = sst_hsw_stream_pause(hsw, pcm_data->stream, 1);
 646         if (ret < 0)
 647                 dev_err(rtd->dev, "error: failed to pause %d\n", ret);
 648
 649         return 0;
 650 }
 651
 652 static int hsw_pcm_trigger(struct snd_soc_component *component,
 653                            struct snd_pcm_substream *substream, int cmd)
 654 {
 655         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 656         struct hsw_priv_data *pdata = snd_soc_component_get_drvdata(component);
 657         struct hsw_pcm_data *pcm_data;
 658         struct sst_hsw_stream *sst_stream;
 659         struct sst_hsw *hsw = pdata->hsw;
 660         struct snd_pcm_runtime *runtime = substream->runtime;
 661         snd_pcm_uframes_t pos;
 662         int dai;
 663
 664         dai = mod_map[asoc_rtd_to_cpu(rtd, 0)->id].dai_id;
 665         pcm_data = &pdata->pcm[dai][substream->stream];
 666         sst_stream = pcm_data->stream;
 667
 668         switch (cmd) {
 669         case SNDRV_PCM_TRIGGER_START:
 670         case SNDRV_PCM_TRIGGER_RESUME:
 671         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 672                 sst_hsw_stream_set_silence_start(hsw, sst_stream, false);
 673                 sst_hsw_stream_resume(hsw, pcm_data->stream, 0);
 674                 break;
 675         case SNDRV_PCM_TRIGGER_STOP:
 676         case SNDRV_PCM_TRIGGER_SUSPEND:
 677         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 678                 sst_hsw_stream_set_silence_start(hsw, sst_stream, false);
 679                 sst_hsw_stream_pause(hsw, pcm_data->stream, 0);
 680                 break;
 681         case SNDRV_PCM_TRIGGER_DRAIN:
 682                 pos = runtime->control->appl_ptr % runtime->buffer_size;
 683                 sst_hsw_stream_set_old_position(hsw, pcm_data->stream, pos);
 684                 sst_hsw_stream_set_silence_start(hsw, sst_stream, true);
 685                 break;
 686         default:
 687                 break;
 688         }
 689
 690         return 0;
 691 }
 692
 693 static u32 hsw_notify_pointer(struct sst_hsw_stream *stream, void *data)
 694 {
 695         struct hsw_pcm_data *pcm_data = data;
 696         struct snd_pcm_substream *substream = pcm_data->substream;
 697         struct snd_pcm_runtime *runtime = substream->runtime;
 698         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 699         struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, DRV_NAME);
 700         struct hsw_priv_data *pdata = snd_soc_component_get_drvdata(component);
 701         struct sst_hsw *hsw = pdata->hsw;
 702         u32 pos;
 703         snd_pcm_uframes_t position = bytes_to_frames(runtime,
 704                  sst_hsw_get_dsp_position(hsw, pcm_data->stream));
 705         unsigned char *dma_area = runtime->dma_area;
 706         snd_pcm_uframes_t dma_frames =
 707                 bytes_to_frames(runtime, runtime->dma_bytes);
 708         snd_pcm_uframes_t old_position;
 709         ssize_t samples;
 710
 711         pos = frames_to_bytes(runtime,
 712                 (runtime->control->appl_ptr % runtime->buffer_size));
 713
 714         dev_vdbg(rtd->dev, "PCM: App pointer %d bytes\n", pos);
 715
 716         /* SST fw don't know where to stop dma
 717          * So, SST driver need to clean the data which has been consumed
 718          */
 719         if (dma_area == NULL || dma_frames <= 0
 720                 || (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
 721                 || !sst_hsw_stream_get_silence_start(hsw, stream)) {
 722                 snd_pcm_period_elapsed(substream);
 723                 return pos;
 724         }
 725
 726         old_position = sst_hsw_stream_get_old_position(hsw, stream);
 727         if (position > old_position) {
 728                 if (position < dma_frames) {
 729                         samples = SST_SAMPLES(runtime, position - old_position);
 730                         snd_pcm_format_set_silence(runtime->format,
 731                                 SST_OLD_POSITION(dma_area,
 732                                         runtime, old_position),
 733                                 samples);
 734                 } else
 735                         dev_err(rtd->dev, "PCM: position is wrong\n");
 736         } else {
 737                 if (old_position < dma_frames) {
 738                         samples = SST_SAMPLES(runtime,
 739                                 dma_frames - old_position);
 740                         snd_pcm_format_set_silence(runtime->format,
 741                                 SST_OLD_POSITION(dma_area,
 742                                         runtime, old_position),
 743                                 samples);
 744                 } else
 745                         dev_err(rtd->dev, "PCM: dma_bytes is wrong\n");
 746                 if (position < dma_frames) {
 747                         samples = SST_SAMPLES(runtime, position);
 748                         snd_pcm_format_set_silence(runtime->format,
 749                                 dma_area, samples);
 750                 } else
 751                         dev_err(rtd->dev, "PCM: position is wrong\n");
 752         }
 753         sst_hsw_stream_set_old_position(hsw, stream, position);
 754
 755         /* let alsa know we have play a period */
 756         snd_pcm_period_elapsed(substream);
 757         return pos;
 758 }
 759
 760 static snd_pcm_uframes_t hsw_pcm_pointer(struct snd_soc_component *component,
 761                                          struct snd_pcm_substream *substream)
 762 {
 763         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 764         struct snd_pcm_runtime *runtime = substream->runtime;
 765         struct hsw_priv_data *pdata = snd_soc_component_get_drvdata(component);
 766         struct hsw_pcm_data *pcm_data;
 767         struct sst_hsw *hsw = pdata->hsw;
 768         snd_pcm_uframes_t offset;
 769         uint64_t ppos;
 770         u32 position;
 771         int dai;
 772
 773         dai = mod_map[asoc_rtd_to_cpu(rtd, 0)->id].dai_id;
 774         pcm_data = &pdata->pcm[dai][substream->stream];
 775         position = sst_hsw_get_dsp_position(hsw, pcm_data->stream);
 776
 777         offset = bytes_to_frames(runtime, position);
 778         ppos = sst_hsw_get_dsp_presentation_position(hsw, pcm_data->stream);
 779
 780         dev_vdbg(rtd->dev, "PCM: DMA pointer %du bytes, pos %llu\n",
 781                 position, ppos);
 782         return offset;
 783 }
 784
 785 static int hsw_pcm_open(struct snd_soc_component *component,
 786                         struct snd_pcm_substream *substream)
 787 {
 788         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 789         struct hsw_priv_data *pdata = snd_soc_component_get_drvdata(component);
 790         struct hsw_pcm_data *pcm_data;
 791         struct sst_hsw *hsw = pdata->hsw;
 792         int dai;
 793
 794         dai = mod_map[asoc_rtd_to_cpu(rtd, 0)->id].dai_id;
 795         pcm_data = &pdata->pcm[dai][substream->stream];
 796
 797         mutex_lock(&pcm_data->mutex);
 798         pm_runtime_get_sync(pdata->dev);
 799
 800         pcm_data->substream = substream;
 801
 802         snd_soc_set_runtime_hwparams(substream, &hsw_pcm_hardware);
 803
 804         pcm_data->stream = sst_hsw_stream_new(hsw, asoc_rtd_to_cpu(rtd, 0)->id,
 805                 hsw_notify_pointer, pcm_data);
 806         if (pcm_data->stream == NULL) {
 807                 dev_err(rtd->dev, "error: failed to create stream\n");
 808                 pm_runtime_mark_last_busy(pdata->dev);
 809                 pm_runtime_put_autosuspend(pdata->dev);
 810                 mutex_unlock(&pcm_data->mutex);
 811                 return -EINVAL;
 812         }
 813
 814         mutex_unlock(&pcm_data->mutex);
 815         return 0;
 816 }
 817
 818 static int hsw_pcm_close(struct snd_soc_component *component,
 819                          struct snd_pcm_substream *substream)
 820 {
 821         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 822         struct hsw_priv_data *pdata = snd_soc_component_get_drvdata(component);
 823         struct hsw_pcm_data *pcm_data;
 824         struct sst_hsw *hsw = pdata->hsw;
 825         int ret, dai;
 826
 827         dai = mod_map[asoc_rtd_to_cpu(rtd, 0)->id].dai_id;
 828         pcm_data = &pdata->pcm[dai][substream->stream];
 829
 830         mutex_lock(&pcm_data->mutex);
 831         ret = sst_hsw_stream_reset(hsw, pcm_data->stream);
 832         if (ret < 0) {
 833                 dev_dbg(rtd->dev, "error: reset stream failed %d\n", ret);
 834                 goto out;
 835         }
 836
 837         ret = sst_hsw_stream_free(hsw, pcm_data->stream);
 838         if (ret < 0) {
 839                 dev_dbg(rtd->dev, "error: free stream failed %d\n", ret);
 840                 goto out;
 841         }
 842         pcm_data->allocated = false;
 843         pcm_data->stream = NULL;
 844
 845 out:
 846         pm_runtime_mark_last_busy(pdata->dev);
 847         pm_runtime_put_autosuspend(pdata->dev);
 848         mutex_unlock(&pcm_data->mutex);
 849         return ret;
 850 }
 851
 852 static int hsw_pcm_create_modules(struct hsw_priv_data *pdata)
 853 {
 854         struct sst_hsw *hsw = pdata->hsw;
 855         struct hsw_pcm_data *pcm_data;
 856         int i;
 857
 858         for (i = 0; i < ARRAY_SIZE(mod_map); i++) {
 859                 pcm_data = &pdata->pcm[mod_map[i].dai_id][mod_map[i].stream];
 860
 861                 /* create new runtime module, use same offset if recreated */
 862                 pcm_data->runtime = sst_hsw_runtime_module_create(hsw,
 863                         mod_map[i].mod_id, pcm_data->persistent_offset);
 864                 if (pcm_data->runtime == NULL)
 865                         goto err;
 866                 pcm_data->persistent_offset =
 867                         pcm_data->runtime->persistent_offset;
 868         }
 869
 870         /* create runtime blocks for module waves */
 871         if (sst_hsw_is_module_loaded(hsw, SST_HSW_MODULE_WAVES)) {
 872                 pdata->runtime_waves = sst_hsw_runtime_module_create(hsw,
 873                         SST_HSW_MODULE_WAVES, 0);
 874                 if (pdata->runtime_waves == NULL)
 875                         goto err;
 876         }
 877
 878         return 0;
 879
 880 err:
 881         for (--i; i >= 0; i--) {
 882                 pcm_data = &pdata->pcm[mod_map[i].dai_id][mod_map[i].stream];
 883                 sst_hsw_runtime_module_free(pcm_data->runtime);
 884         }
 885
 886         return -ENODEV;
 887 }
 888
 889 static void hsw_pcm_free_modules(struct hsw_priv_data *pdata)
 890 {
 891         struct sst_hsw *hsw = pdata->hsw;
 892         struct hsw_pcm_data *pcm_data;
 893         int i;
 894
 895         for (i = 0; i < ARRAY_SIZE(mod_map); i++) {
 896                 pcm_data = &pdata->pcm[mod_map[i].dai_id][mod_map[i].stream];
 897                 if (pcm_data->runtime){
 898                         sst_hsw_runtime_module_free(pcm_data->runtime);
 899                         pcm_data->runtime = NULL;
 900                 }
 901         }
 902         if (sst_hsw_is_module_loaded(hsw, SST_HSW_MODULE_WAVES) &&
 903                                 pdata->runtime_waves) {
 904                 sst_hsw_runtime_module_free(pdata->runtime_waves);
 905                 pdata->runtime_waves = NULL;
 906         }
 907 }
 908
 909 static int hsw_pcm_new(struct snd_soc_component *component,
 910                        struct snd_soc_pcm_runtime *rtd)
 911 {
 912         struct snd_pcm *pcm = rtd->pcm;
 913         struct sst_pdata *pdata = dev_get_platdata(component->dev);
 914         struct hsw_priv_data *priv_data = dev_get_drvdata(component->dev);
 915         struct device *dev = pdata->dma_dev;
 916
 917         if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream ||
 918                         pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
 919                 snd_pcm_set_managed_buffer_all(pcm,
 920                         SNDRV_DMA_TYPE_DEV_SG,
 921                         dev,
 922                         hsw_pcm_hardware.buffer_bytes_max,
 923                         hsw_pcm_hardware.buffer_bytes_max);
 924         }
 925         if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream)
 926                 priv_data->pcm[asoc_rtd_to_cpu(rtd, 0)->id][SNDRV_PCM_STREAM_PLAYBACK].hsw_pcm = pcm;
 927         if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream)
 928                 priv_data->pcm[asoc_rtd_to_cpu(rtd, 0)->id][SNDRV_PCM_STREAM_CAPTURE].hsw_pcm = pcm;
 929
 930         return 0;
 931 }
 932
 933 #define HSW_FORMATS \
 934         (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE)
 935
 936 static struct snd_soc_dai_driver hsw_dais[] = {
 937         {
 938                 .name  = "System Pin",
 939                 .id = HSW_PCM_DAI_ID_SYSTEM,
 940                 .playback = {
 941                         .stream_name = "System Playback",
 942                         .channels_min = 2,
 943                         .channels_max = 2,
 944                         .rates = SNDRV_PCM_RATE_48000,
 945                         .formats = SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE,
 946                 },
 947                 .capture = {
 948                         .stream_name = "Analog Capture",
 949                         .channels_min = 2,
 950                         .channels_max = 4,
 951                         .rates = SNDRV_PCM_RATE_48000,
 952                         .formats = SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE,
 953                 },
 954         },
 955         {
 956                 /* PCM */
 957                 .name  = "Offload0 Pin",
 958                 .id = HSW_PCM_DAI_ID_OFFLOAD0,
 959                 .playback = {
 960                         .stream_name = "Offload0 Playback",
 961                         .channels_min = 2,
 962                         .channels_max = 2,
 963                         .rates = SNDRV_PCM_RATE_8000_192000,
 964                         .formats = HSW_FORMATS,
 965                 },
 966         },
 967         {
 968                 /* PCM */
 969                 .name  = "Offload1 Pin",
 970                 .id = HSW_PCM_DAI_ID_OFFLOAD1,
 971                 .playback = {
 972                         .stream_name = "Offload1 Playback",
 973                         .channels_min = 2,
 974                         .channels_max = 2,
 975                         .rates = SNDRV_PCM_RATE_8000_192000,
 976                         .formats = HSW_FORMATS,
 977                 },
 978         },
 979         {
 980                 .name  = "Loopback Pin",
 981                 .id = HSW_PCM_DAI_ID_LOOPBACK,
 982                 .capture = {
 983                         .stream_name = "Loopback Capture",
 984                         .channels_min = 2,
 985                         .channels_max = 2,
 986                         .rates = SNDRV_PCM_RATE_48000,
 987                         .formats = SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE,
 988                 },
 989         },
 990 };
 991
 992 static const struct snd_soc_dapm_widget widgets[] = {
 993
 994         /* Backend DAIs  */
 995         SND_SOC_DAPM_AIF_IN("SSP0 CODEC IN", NULL, 0, SND_SOC_NOPM, 0, 0),
 996         SND_SOC_DAPM_AIF_OUT("SSP0 CODEC OUT", NULL, 0, SND_SOC_NOPM, 0, 0),
 997         SND_SOC_DAPM_AIF_IN("SSP1 BT IN", NULL, 0, SND_SOC_NOPM, 0, 0),
 998         SND_SOC_DAPM_AIF_OUT("SSP1 BT OUT", NULL, 0, SND_SOC_NOPM, 0, 0),
 999
1000         /* Global Playback Mixer */
1001         SND_SOC_DAPM_MIXER("Playback VMixer", SND_SOC_NOPM, 0, 0, NULL, 0),
1002 };
1003
1004 static const struct snd_soc_dapm_route graph[] = {
1005
1006         /* Playback Mixer */
1007         {"Playback VMixer", NULL, "System Playback"},
1008         {"Playback VMixer", NULL, "Offload0 Playback"},
1009         {"Playback VMixer", NULL, "Offload1 Playback"},
1010
1011         {"SSP0 CODEC OUT", NULL, "Playback VMixer"},
1012
1013         {"Analog Capture", NULL, "SSP0 CODEC IN"},
1014 };
1015
1016 static int hsw_pcm_probe(struct snd_soc_component *component)
1017 {
1018         struct hsw_priv_data *priv_data = snd_soc_component_get_drvdata(component);
1019         struct sst_pdata *pdata = dev_get_platdata(component->dev);
1020         struct device *dma_dev, *dev;
1021         int i, ret = 0;
1022
1023         if (!pdata)
1024                 return -ENODEV;
1025
1026         dev = component->dev;
1027         dma_dev = pdata->dma_dev;
1028
1029         priv_data->hsw = pdata->dsp;
1030         priv_data->dev = dev;
1031         priv_data->pm_state = HSW_PM_STATE_D0;
1032         priv_data->soc_card = component->card;
1033
1034         /* allocate DSP buffer page tables */
1035         for (i = 0; i < ARRAY_SIZE(hsw_dais); i++) {
1036
1037                 /* playback */
1038                 if (hsw_dais[i].playback.channels_min) {
1039                         mutex_init(&priv_data->pcm[i][SNDRV_PCM_STREAM_PLAYBACK].mutex);
1040                         ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, dma_dev,
1041                                 PAGE_SIZE, &priv_data->dmab[i][0]);
1042                         if (ret < 0)
1043                                 goto err;
1044                 }
1045
1046                 /* capture */
1047                 if (hsw_dais[i].capture.channels_min) {
1048                         mutex_init(&priv_data->pcm[i][SNDRV_PCM_STREAM_CAPTURE].mutex);
1049                         ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, dma_dev,
1050                                 PAGE_SIZE, &priv_data->dmab[i][1]);
1051                         if (ret < 0)
1052                                 goto err;
1053                 }
1054         }
1055
1056         /* allocate runtime modules */
1057         ret = hsw_pcm_create_modules(priv_data);
1058         if (ret < 0)
1059                 goto err;
1060
1061         /* enable runtime PM with auto suspend */
1062         pm_runtime_set_autosuspend_delay(dev, SST_RUNTIME_SUSPEND_DELAY);
1063         pm_runtime_use_autosuspend(dev);
1064         pm_runtime_enable(dev);
1065         pm_runtime_idle(dev);
1066
1067         return 0;
1068
1069 err:
1070         for (--i; i >= 0; i--) {
1071                 if (hsw_dais[i].playback.channels_min)
1072                         snd_dma_free_pages(&priv_data->dmab[i][0]);
1073                 if (hsw_dais[i].capture.channels_min)
1074                         snd_dma_free_pages(&priv_data->dmab[i][1]);
1075         }
1076         return ret;
1077 }
1078
1079 static void hsw_pcm_remove(struct snd_soc_component *component)
1080 {
1081         struct hsw_priv_data *priv_data =
1082                 snd_soc_component_get_drvdata(component);
1083         int i;
1084
1085         pm_runtime_disable(component->dev);
1086         hsw_pcm_free_modules(priv_data);
1087
1088         for (i = 0; i < ARRAY_SIZE(hsw_dais); i++) {
1089                 if (hsw_dais[i].playback.channels_min)
1090                         snd_dma_free_pages(&priv_data->dmab[i][0]);
1091                 if (hsw_dais[i].capture.channels_min)
1092                         snd_dma_free_pages(&priv_data->dmab[i][1]);
1093         }
1094 }
1095
1096 static const struct snd_soc_component_driver hsw_dai_component = {
1097         .name           = DRV_NAME,
1098         .probe          = hsw_pcm_probe,
1099         .remove         = hsw_pcm_remove,
1100         .open           = hsw_pcm_open,
1101         .close          = hsw_pcm_close,
1102         .hw_params      = hsw_pcm_hw_params,
1103         .trigger        = hsw_pcm_trigger,
1104         .pointer        = hsw_pcm_pointer,
1105         .pcm_construct  = hsw_pcm_new,
1106         .controls       = hsw_volume_controls,
1107         .num_controls   = ARRAY_SIZE(hsw_volume_controls),
1108         .dapm_widgets   = widgets,
1109         .num_dapm_widgets = ARRAY_SIZE(widgets),
1110         .dapm_routes    = graph,
1111         .num_dapm_routes = ARRAY_SIZE(graph),
1112 };
1113
1114 static int hsw_pcm_dev_probe(struct platform_device *pdev)
1115 {
1116         struct sst_pdata *sst_pdata = dev_get_platdata(&pdev->dev);
1117         struct hsw_priv_data *priv_data;
1118         int ret;
1119
1120         if (!sst_pdata)
1121                 return -EINVAL;
1122
1123         priv_data = devm_kzalloc(&pdev->dev, sizeof(*priv_data), GFP_KERNEL);
1124         if (!priv_data)
1125                 return -ENOMEM;
1126
1127         ret = sst_hsw_dsp_init(&pdev->dev, sst_pdata);
1128         if (ret < 0)
1129                 return -ENODEV;
1130
1131         priv_data->hsw = sst_pdata->dsp;
1132         platform_set_drvdata(pdev, priv_data);
1133
1134         ret = devm_snd_soc_register_component(&pdev->dev, &hsw_dai_component,
1135                 hsw_dais, ARRAY_SIZE(hsw_dais));
1136         if (ret < 0)
1137                 goto err_plat;
1138
1139         return 0;
1140
1141 err_plat:
1142         sst_hsw_dsp_free(&pdev->dev, sst_pdata);
1143         return 0;
1144 }
1145
1146 static int hsw_pcm_dev_remove(struct platform_device *pdev)
1147 {
1148         struct sst_pdata *sst_pdata = dev_get_platdata(&pdev->dev);
1149
1150         sst_hsw_dsp_free(&pdev->dev, sst_pdata);
1151
1152         return 0;
1153 }
1154
1155 #ifdef CONFIG_PM
1156
1157 static int hsw_pcm_runtime_idle(struct device *dev)
1158 {
1159         return 0;
1160 }
1161
1162 static int hsw_pcm_suspend(struct device *dev)
1163 {
1164         struct hsw_priv_data *pdata = dev_get_drvdata(dev);
1165         struct sst_hsw *hsw = pdata->hsw;
1166
1167         /* enter D3 state and stall */
1168         sst_hsw_dsp_runtime_suspend(hsw);
1169         /* free all runtime modules */
1170         hsw_pcm_free_modules(pdata);
1171         /* put the DSP to sleep, fw unloaded after runtime modules freed */
1172         sst_hsw_dsp_runtime_sleep(hsw);
1173         return 0;
1174 }
1175
1176 static int hsw_pcm_runtime_suspend(struct device *dev)
1177 {
1178         struct hsw_priv_data *pdata = dev_get_drvdata(dev);
1179         struct sst_hsw *hsw = pdata->hsw;
1180         int ret;
1181
1182         if (pdata->pm_state >= HSW_PM_STATE_RTD3)
1183                 return 0;
1184
1185         /* fw modules will be unloaded on RTD3, set flag to track */
1186         if (sst_hsw_is_module_active(hsw, SST_HSW_MODULE_WAVES)) {
1187                 ret = sst_hsw_module_disable(hsw, SST_HSW_MODULE_WAVES, 0);
1188                 if (ret < 0)
1189                         return ret;
1190                 sst_hsw_set_module_enabled_rtd3(hsw, SST_HSW_MODULE_WAVES);
1191         }
1192         hsw_pcm_suspend(dev);
1193         pdata->pm_state = HSW_PM_STATE_RTD3;
1194
1195         return 0;
1196 }
1197
1198 static int hsw_pcm_runtime_resume(struct device *dev)
1199 {
1200         struct hsw_priv_data *pdata = dev_get_drvdata(dev);
1201         struct sst_hsw *hsw = pdata->hsw;
1202         int ret;
1203
1204         if (pdata->pm_state != HSW_PM_STATE_RTD3)
1205                 return 0;
1206
1207         ret = sst_hsw_dsp_load(hsw);
1208         if (ret < 0) {
1209                 dev_err(dev, "failed to reload %d\n", ret);
1210                 return ret;
1211         }
1212
1213         ret = hsw_pcm_create_modules(pdata);
1214         if (ret < 0) {
1215                 dev_err(dev, "failed to create modules %d\n", ret);
1216                 return ret;
1217         }
1218
1219         ret = sst_hsw_dsp_runtime_resume(hsw);
1220         if (ret < 0)
1221                 return ret;
1222         else if (ret == 1) /* no action required */
1223                 return 0;
1224
1225         /* check flag when resume */
1226         if (sst_hsw_is_module_enabled_rtd3(hsw, SST_HSW_MODULE_WAVES)) {
1227                 ret = sst_hsw_module_enable(hsw, SST_HSW_MODULE_WAVES, 0);
1228                 if (ret < 0)
1229                         return ret;
1230                 /* put parameters from buffer to dsp */
1231                 ret = sst_hsw_launch_param_buf(hsw);
1232                 if (ret < 0)
1233                         return ret;
1234                 /* unset flag */
1235                 sst_hsw_set_module_disabled_rtd3(hsw, SST_HSW_MODULE_WAVES);
1236         }
1237
1238         pdata->pm_state = HSW_PM_STATE_D0;
1239         return ret;
1240 }
1241
1242 #else
1243 #define hsw_pcm_runtime_idle            NULL
1244 #define hsw_pcm_runtime_suspend         NULL
1245 #define hsw_pcm_runtime_resume          NULL
1246 #endif
1247
1248 #ifdef CONFIG_PM
1249
1250 static void hsw_pcm_complete(struct device *dev)
1251 {
1252         struct hsw_priv_data *pdata = dev_get_drvdata(dev);
1253         struct sst_hsw *hsw = pdata->hsw;
1254         struct hsw_pcm_data *pcm_data;
1255         int i, err;
1256
1257         if (pdata->pm_state != HSW_PM_STATE_D3)
1258                 return;
1259
1260         err = sst_hsw_dsp_load(hsw);
1261         if (err < 0) {
1262                 dev_err(dev, "failed to reload %d\n", err);
1263                 return;
1264         }
1265
1266         err = hsw_pcm_create_modules(pdata);
1267         if (err < 0) {
1268                 dev_err(dev, "failed to create modules %d\n", err);
1269                 return;
1270         }
1271
1272         for (i = 0; i < ARRAY_SIZE(mod_map); i++) {
1273                 pcm_data = &pdata->pcm[mod_map[i].dai_id][mod_map[i].stream];
1274
1275                 if (!pcm_data->substream)
1276                         continue;
1277
1278                 err = sst_module_runtime_restore(pcm_data->runtime,
1279                         &pcm_data->context);
1280                 if (err < 0)
1281                         dev_err(dev, "failed to restore context for PCM %d\n", i);
1282         }
1283
1284         snd_soc_resume(pdata->soc_card->dev);
1285
1286         err = sst_hsw_dsp_runtime_resume(hsw);
1287         if (err < 0)
1288                 return;
1289         else if (err == 1) /* no action required */
1290                 return;
1291
1292         pdata->pm_state = HSW_PM_STATE_D0;
1293         return;
1294 }
1295
1296 static int hsw_pcm_prepare(struct device *dev)
1297 {
1298         struct hsw_priv_data *pdata = dev_get_drvdata(dev);
1299         struct hsw_pcm_data *pcm_data;
1300         int i, err;
1301
1302         if (pdata->pm_state == HSW_PM_STATE_D3)
1303                 return 0;
1304         else if (pdata->pm_state == HSW_PM_STATE_D0) {
1305                 /* suspend all active streams */
1306                 for (i = 0; i < ARRAY_SIZE(mod_map); i++) {
1307                         pcm_data = &pdata->pcm[mod_map[i].dai_id][mod_map[i].stream];
1308
1309                         if (!pcm_data->substream)
1310                                 continue;
1311                         dev_dbg(dev, "suspending pcm %d\n", i);
1312                         snd_pcm_suspend_all(pcm_data->hsw_pcm);
1313
1314                         /* We need to wait until the DSP FW stops the streams */
1315                         msleep(2);
1316                 }
1317
1318                 /* preserve persistent memory */
1319                 for (i = 0; i < ARRAY_SIZE(mod_map); i++) {
1320                         pcm_data = &pdata->pcm[mod_map[i].dai_id][mod_map[i].stream];
1321
1322                         if (!pcm_data->substream)
1323                                 continue;
1324
1325                         dev_dbg(dev, "saving context pcm %d\n", i);
1326                         err = sst_module_runtime_save(pcm_data->runtime,
1327                                 &pcm_data->context);
1328                         if (err < 0)
1329                                 dev_err(dev, "failed to save context for PCM %d\n", i);
1330                 }
1331                 hsw_pcm_suspend(dev);
1332         }
1333
1334         snd_soc_suspend(pdata->soc_card->dev);
1335         snd_soc_poweroff(pdata->soc_card->dev);
1336
1337         pdata->pm_state = HSW_PM_STATE_D3;
1338
1339         return 0;
1340 }
1341
1342 #else
1343 #define hsw_pcm_prepare         NULL
1344 #define hsw_pcm_complete        NULL
1345 #endif
1346
1347 static const struct dev_pm_ops hsw_pcm_pm = {
1348         .runtime_idle = hsw_pcm_runtime_idle,
1349         .runtime_suspend = hsw_pcm_runtime_suspend,
1350         .runtime_resume = hsw_pcm_runtime_resume,
1351         .prepare = hsw_pcm_prepare,
1352         .complete = hsw_pcm_complete,
1353 };
1354
1355 static struct platform_driver hsw_pcm_driver = {
1356         .driver = {
1357                 .name = "haswell-pcm-audio",
1358                 .pm = &hsw_pcm_pm,
1359         },
1360
1361         .probe = hsw_pcm_dev_probe,
1362         .remove = hsw_pcm_dev_remove,
1363 };
1364 module_platform_driver(hsw_pcm_driver);
1365
1366 MODULE_AUTHOR("Liam Girdwood, Xingchao Wang");
1367 MODULE_DESCRIPTION("Haswell/Lynxpoint + Broadwell/Wildcatpoint PCM");
1368 MODULE_LICENSE("GPL v2");
1369 MODULE_ALIAS("platform:haswell-pcm-audio");