sound/soc/codecs/hdmi-codec.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * ALSA SoC codec for HDMI encoder drivers
   4  * Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com/
   5  * Author: Jyri Sarha <jsarha@ti.com>
   6  */
   7 #include <linux/module.h>
   8 #include <linux/string.h>
   9 #include <sound/core.h>
  10 #include <sound/jack.h>
  11 #include <sound/pcm.h>
  12 #include <sound/pcm_params.h>
  13 #include <sound/soc.h>
  14 #include <sound/tlv.h>
  15 #include <sound/pcm_drm_eld.h>
  16 #include <sound/hdmi-codec.h>
  17 #include <sound/pcm_iec958.h>
  18
  19 #include <drm/drm_crtc.h> /* This is only to get MAX_ELD_BYTES */
  20
  21 #define HDMI_CODEC_CHMAP_IDX_UNKNOWN  -1
  22
  23 /*
  24  * CEA speaker placement for HDMI 1.4:
  25  *
  26  *  FL  FLC   FC   FRC   FR   FRW
  27  *
  28  *                                  LFE
  29  *
  30  *  RL  RLC   RC   RRC   RR
  31  *
  32  *  Speaker placement has to be extended to support HDMI 2.0
  33  */
  34 enum hdmi_codec_cea_spk_placement {
  35         FL  = BIT(0),   /* Front Left           */
  36         FC  = BIT(1),   /* Front Center         */
  37         FR  = BIT(2),   /* Front Right          */
  38         FLC = BIT(3),   /* Front Left Center    */
  39         FRC = BIT(4),   /* Front Right Center   */
  40         RL  = BIT(5),   /* Rear Left            */
  41         RC  = BIT(6),   /* Rear Center          */
  42         RR  = BIT(7),   /* Rear Right           */
  43         RLC = BIT(8),   /* Rear Left Center     */
  44         RRC = BIT(9),   /* Rear Right Center    */
  45         LFE = BIT(10),  /* Low Frequency Effect */
  46 };
  47
  48 /*
  49  * cea Speaker allocation structure
  50  */
  51 struct hdmi_codec_cea_spk_alloc {
  52         const int ca_id;
  53         unsigned int n_ch;
  54         unsigned long mask;
  55 };
  56
  57 /* Channel maps  stereo HDMI */
  58 static const struct snd_pcm_chmap_elem hdmi_codec_stereo_chmaps[] = {
  59         { .channels = 2,
  60           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
  61         { }
  62 };
  63
  64 /* Channel maps for multi-channel playbacks, up to 8 n_ch */
  65 static const struct snd_pcm_chmap_elem hdmi_codec_8ch_chmaps[] = {
  66         { .channels = 2, /* CA_ID 0x00 */
  67           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
  68         { .channels = 4, /* CA_ID 0x01 */
  69           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
  70                    SNDRV_CHMAP_NA } },
  71         { .channels = 4, /* CA_ID 0x02 */
  72           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
  73                    SNDRV_CHMAP_FC } },
  74         { .channels = 4, /* CA_ID 0x03 */
  75           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
  76                    SNDRV_CHMAP_FC } },
  77         { .channels = 6, /* CA_ID 0x04 */
  78           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
  79                    SNDRV_CHMAP_NA, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } },
  80         { .channels = 6, /* CA_ID 0x05 */
  81           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
  82                    SNDRV_CHMAP_NA, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } },
  83         { .channels = 6, /* CA_ID 0x06 */
  84           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
  85                    SNDRV_CHMAP_FC, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } },
  86         { .channels = 6, /* CA_ID 0x07 */
  87           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
  88                    SNDRV_CHMAP_FC, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } },
  89         { .channels = 6, /* CA_ID 0x08 */
  90           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
  91                    SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
  92         { .channels = 6, /* CA_ID 0x09 */
  93           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
  94                    SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
  95         { .channels = 6, /* CA_ID 0x0A */
  96           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
  97                    SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
  98         { .channels = 6, /* CA_ID 0x0B */
  99           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
 100                    SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
 101         { .channels = 8, /* CA_ID 0x0C */
 102           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
 103                    SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR,
 104                    SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } },
 105         { .channels = 8, /* CA_ID 0x0D */
 106           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
 107                    SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR,
 108                    SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } },
 109         { .channels = 8, /* CA_ID 0x0E */
 110           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
 111                    SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR,
 112                    SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } },
 113         { .channels = 8, /* CA_ID 0x0F */
 114           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
 115                    SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR,
 116                    SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } },
 117         { .channels = 8, /* CA_ID 0x10 */
 118           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
 119                    SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR,
 120                    SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } },
 121         { .channels = 8, /* CA_ID 0x11 */
 122           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
 123                    SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR,
 124                    SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } },
 125         { .channels = 8, /* CA_ID 0x12 */
 126           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
 127                    SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR,
 128                    SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } },
 129         { .channels = 8, /* CA_ID 0x13 */
 130           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
 131                    SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR,
 132                    SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } },
 133         { .channels = 8, /* CA_ID 0x14 */
 134           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
 135                    SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
 136                    SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
 137         { .channels = 8, /* CA_ID 0x15 */
 138           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
 139                    SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
 140                    SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
 141         { .channels = 8, /* CA_ID 0x16 */
 142           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
 143                    SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
 144                    SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
 145         { .channels = 8, /* CA_ID 0x17 */
 146           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
 147                    SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
 148                    SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
 149         { .channels = 8, /* CA_ID 0x18 */
 150           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
 151                    SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
 152                    SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
 153         { .channels = 8, /* CA_ID 0x19 */
 154           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
 155                    SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
 156                    SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
 157         { .channels = 8, /* CA_ID 0x1A */
 158           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
 159                    SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
 160                    SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
 161         { .channels = 8, /* CA_ID 0x1B */
 162           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
 163                    SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
 164                    SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
 165         { .channels = 8, /* CA_ID 0x1C */
 166           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
 167                    SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
 168                    SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
 169         { .channels = 8, /* CA_ID 0x1D */
 170           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
 171                    SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
 172                    SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
 173         { .channels = 8, /* CA_ID 0x1E */
 174           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
 175                    SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
 176                    SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
 177         { .channels = 8, /* CA_ID 0x1F */
 178           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
 179                    SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
 180                    SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
 181         { }
 182 };
 183
 184 /*
 185  * hdmi_codec_channel_alloc: speaker configuration available for CEA
 186  *
 187  * This is an ordered list that must match with hdmi_codec_8ch_chmaps struct
 188  * The preceding ones have better chances to be selected by
 189  * hdmi_codec_get_ch_alloc_table_idx().
 190  */
 191 static const struct hdmi_codec_cea_spk_alloc hdmi_codec_channel_alloc[] = {
 192         { .ca_id = 0x00, .n_ch = 2,
 193           .mask = FL | FR},
 194         /* 2.1 */
 195         { .ca_id = 0x01, .n_ch = 4,
 196           .mask = FL | FR | LFE},
 197         /* Dolby Surround */
 198         { .ca_id = 0x02, .n_ch = 4,
 199           .mask = FL | FR | FC },
 200         /* surround51 */
 201         { .ca_id = 0x0b, .n_ch = 6,
 202           .mask = FL | FR | LFE | FC | RL | RR},
 203         /* surround40 */
 204         { .ca_id = 0x08, .n_ch = 6,
 205           .mask = FL | FR | RL | RR },
 206         /* surround41 */
 207         { .ca_id = 0x09, .n_ch = 6,
 208           .mask = FL | FR | LFE | RL | RR },
 209         /* surround50 */
 210         { .ca_id = 0x0a, .n_ch = 6,
 211           .mask = FL | FR | FC | RL | RR },
 212         /* 6.1 */
 213         { .ca_id = 0x0f, .n_ch = 8,
 214           .mask = FL | FR | LFE | FC | RL | RR | RC },
 215         /* surround71 */
 216         { .ca_id = 0x13, .n_ch = 8,
 217           .mask = FL | FR | LFE | FC | RL | RR | RLC | RRC },
 218         /* others */
 219         { .ca_id = 0x03, .n_ch = 8,
 220           .mask = FL | FR | LFE | FC },
 221         { .ca_id = 0x04, .n_ch = 8,
 222           .mask = FL | FR | RC},
 223         { .ca_id = 0x05, .n_ch = 8,
 224           .mask = FL | FR | LFE | RC },
 225         { .ca_id = 0x06, .n_ch = 8,
 226           .mask = FL | FR | FC | RC },
 227         { .ca_id = 0x07, .n_ch = 8,
 228           .mask = FL | FR | LFE | FC | RC },
 229         { .ca_id = 0x0c, .n_ch = 8,
 230           .mask = FL | FR | RC | RL | RR },
 231         { .ca_id = 0x0d, .n_ch = 8,
 232           .mask = FL | FR | LFE | RL | RR | RC },
 233         { .ca_id = 0x0e, .n_ch = 8,
 234           .mask = FL | FR | FC | RL | RR | RC },
 235         { .ca_id = 0x10, .n_ch = 8,
 236           .mask = FL | FR | RL | RR | RLC | RRC },
 237         { .ca_id = 0x11, .n_ch = 8,
 238           .mask = FL | FR | LFE | RL | RR | RLC | RRC },
 239         { .ca_id = 0x12, .n_ch = 8,
 240           .mask = FL | FR | FC | RL | RR | RLC | RRC },
 241         { .ca_id = 0x14, .n_ch = 8,
 242           .mask = FL | FR | FLC | FRC },
 243         { .ca_id = 0x15, .n_ch = 8,
 244           .mask = FL | FR | LFE | FLC | FRC },
 245         { .ca_id = 0x16, .n_ch = 8,
 246           .mask = FL | FR | FC | FLC | FRC },
 247         { .ca_id = 0x17, .n_ch = 8,
 248           .mask = FL | FR | LFE | FC | FLC | FRC },
 249         { .ca_id = 0x18, .n_ch = 8,
 250           .mask = FL | FR | RC | FLC | FRC },
 251         { .ca_id = 0x19, .n_ch = 8,
 252           .mask = FL | FR | LFE | RC | FLC | FRC },
 253         { .ca_id = 0x1a, .n_ch = 8,
 254           .mask = FL | FR | RC | FC | FLC | FRC },
 255         { .ca_id = 0x1b, .n_ch = 8,
 256           .mask = FL | FR | LFE | RC | FC | FLC | FRC },
 257         { .ca_id = 0x1c, .n_ch = 8,
 258           .mask = FL | FR | RL | RR | FLC | FRC },
 259         { .ca_id = 0x1d, .n_ch = 8,
 260           .mask = FL | FR | LFE | RL | RR | FLC | FRC },
 261         { .ca_id = 0x1e, .n_ch = 8,
 262           .mask = FL | FR | FC | RL | RR | FLC | FRC },
 263         { .ca_id = 0x1f, .n_ch = 8,
 264           .mask = FL | FR | LFE | FC | RL | RR | FLC | FRC },
 265 };
 266
 267 struct hdmi_codec_priv {
 268         struct hdmi_codec_pdata hcd;
 269         uint8_t eld[MAX_ELD_BYTES];
 270         struct snd_pcm_chmap *chmap_info;
 271         unsigned int chmap_idx;
 272         struct mutex lock;
 273         bool busy;
 274         struct snd_soc_jack *jack;
 275         unsigned int jack_status;
 276         u8 iec_status[AES_IEC958_STATUS_SIZE];
 277 };
 278
 279 static const struct snd_soc_dapm_widget hdmi_widgets[] = {
 280         SND_SOC_DAPM_OUTPUT("TX"),
 281         SND_SOC_DAPM_OUTPUT("RX"),
 282 };
 283
 284 enum {
 285         DAI_ID_I2S = 0,
 286         DAI_ID_SPDIF,
 287 };
 288
 289 static int hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol,
 290                              struct snd_ctl_elem_info *uinfo)
 291 {
 292         uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
 293         uinfo->count = sizeof_field(struct hdmi_codec_priv, eld);
 294
 295         return 0;
 296 }
 297
 298 static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
 299                             struct snd_ctl_elem_value *ucontrol)
 300 {
 301         struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
 302         struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component);
 303
 304         memcpy(ucontrol->value.bytes.data, hcp->eld, sizeof(hcp->eld));
 305
 306         return 0;
 307 }
 308
 309 static unsigned long hdmi_codec_spk_mask_from_alloc(int spk_alloc)
 310 {
 311         int i;
 312         static const unsigned long hdmi_codec_eld_spk_alloc_bits[] = {
 313                 [0] = FL | FR, [1] = LFE, [2] = FC, [3] = RL | RR,
 314                 [4] = RC, [5] = FLC | FRC, [6] = RLC | RRC,
 315         };
 316         unsigned long spk_mask = 0;
 317
 318         for (i = 0; i < ARRAY_SIZE(hdmi_codec_eld_spk_alloc_bits); i++) {
 319                 if (spk_alloc & (1 << i))
 320                         spk_mask |= hdmi_codec_eld_spk_alloc_bits[i];
 321         }
 322
 323         return spk_mask;
 324 }
 325
 326 static void hdmi_codec_eld_chmap(struct hdmi_codec_priv *hcp)
 327 {
 328         u8 spk_alloc;
 329         unsigned long spk_mask;
 330
 331         spk_alloc = drm_eld_get_spk_alloc(hcp->eld);
 332         spk_mask = hdmi_codec_spk_mask_from_alloc(spk_alloc);
 333
 334         /* Detect if only stereo supported, else return 8 channels mappings */
 335         if ((spk_mask & ~(FL | FR)) && hcp->chmap_info->max_channels > 2)
 336                 hcp->chmap_info->chmap = hdmi_codec_8ch_chmaps;
 337         else
 338                 hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps;
 339 }
 340
 341 static int hdmi_codec_get_ch_alloc_table_idx(struct hdmi_codec_priv *hcp,
 342                                              unsigned char channels)
 343 {
 344         int i;
 345         u8 spk_alloc;
 346         unsigned long spk_mask;
 347         const struct hdmi_codec_cea_spk_alloc *cap = hdmi_codec_channel_alloc;
 348
 349         spk_alloc = drm_eld_get_spk_alloc(hcp->eld);
 350         spk_mask = hdmi_codec_spk_mask_from_alloc(spk_alloc);
 351
 352         for (i = 0; i < ARRAY_SIZE(hdmi_codec_channel_alloc); i++, cap++) {
 353                 /* If spk_alloc == 0, HDMI is unplugged return stereo config*/
 354                 if (!spk_alloc && cap->ca_id == 0)
 355                         return i;
 356                 if (cap->n_ch != channels)
 357                         continue;
 358                 if (!(cap->mask == (spk_mask & cap->mask)))
 359                         continue;
 360                 return i;
 361         }
 362
 363         return -EINVAL;
 364 }
 365 static int hdmi_codec_chmap_ctl_get(struct snd_kcontrol *kcontrol,
 366                               struct snd_ctl_elem_value *ucontrol)
 367 {
 368         unsigned const char *map;
 369         unsigned int i;
 370         struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
 371         struct hdmi_codec_priv *hcp = info->private_data;
 372
 373         map = info->chmap[hcp->chmap_idx].map;
 374
 375         for (i = 0; i < info->max_channels; i++) {
 376                 if (hcp->chmap_idx == HDMI_CODEC_CHMAP_IDX_UNKNOWN)
 377                         ucontrol->value.integer.value[i] = 0;
 378                 else
 379                         ucontrol->value.integer.value[i] = map[i];
 380         }
 381
 382         return 0;
 383 }
 384
 385 static int hdmi_codec_iec958_info(struct snd_kcontrol *kcontrol,
 386                                   struct snd_ctl_elem_info *uinfo)
 387 {
 388         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 389         uinfo->count = 1;
 390         return 0;
 391 }
 392
 393 static int hdmi_codec_iec958_default_get(struct snd_kcontrol *kcontrol,
 394                                          struct snd_ctl_elem_value *ucontrol)
 395 {
 396         struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
 397         struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component);
 398
 399         memcpy(ucontrol->value.iec958.status, hcp->iec_status,
 400                sizeof(hcp->iec_status));
 401
 402         return 0;
 403 }
 404
 405 static int hdmi_codec_iec958_default_put(struct snd_kcontrol *kcontrol,
 406                                          struct snd_ctl_elem_value *ucontrol)
 407 {
 408         struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
 409         struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component);
 410
 411         memcpy(hcp->iec_status, ucontrol->value.iec958.status,
 412                sizeof(hcp->iec_status));
 413
 414         return 0;
 415 }
 416
 417 static int hdmi_codec_iec958_mask_get(struct snd_kcontrol *kcontrol,
 418                                       struct snd_ctl_elem_value *ucontrol)
 419 {
 420         memset(ucontrol->value.iec958.status, 0xff,
 421                sizeof_field(struct hdmi_codec_priv, iec_status));
 422
 423         return 0;
 424 }
 425
 426 static int hdmi_codec_startup(struct snd_pcm_substream *substream,
 427                               struct snd_soc_dai *dai)
 428 {
 429         struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);
 430         bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
 431         bool has_capture = !hcp->hcd.no_i2s_capture;
 432         bool has_playback = !hcp->hcd.no_i2s_playback;
 433         int ret = 0;
 434
 435         if (!((has_playback && tx) || (has_capture && !tx)))
 436                 return 0;
 437
 438         mutex_lock(&hcp->lock);
 439         if (hcp->busy) {
 440                 dev_err(dai->dev, "Only one simultaneous stream supported!\n");
 441                 mutex_unlock(&hcp->lock);
 442                 return -EINVAL;
 443         }
 444
 445         if (hcp->hcd.ops->audio_startup) {
 446                 ret = hcp->hcd.ops->audio_startup(dai->dev->parent, hcp->hcd.data);
 447                 if (ret)
 448                         goto err;
 449         }
 450
 451         if (tx && hcp->hcd.ops->get_eld) {
 452                 ret = hcp->hcd.ops->get_eld(dai->dev->parent, hcp->hcd.data,
 453                                             hcp->eld, sizeof(hcp->eld));
 454                 if (ret)
 455                         goto err;
 456
 457                 ret = snd_pcm_hw_constraint_eld(substream->runtime, hcp->eld);
 458                 if (ret)
 459                         goto err;
 460
 461                 /* Select chmap supported */
 462                 hdmi_codec_eld_chmap(hcp);
 463         }
 464
 465         hcp->busy = true;
 466
 467 err:
 468         mutex_unlock(&hcp->lock);
 469         return ret;
 470 }
 471
 472 static void hdmi_codec_shutdown(struct snd_pcm_substream *substream,
 473                                 struct snd_soc_dai *dai)
 474 {
 475         struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);
 476         bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
 477         bool has_capture = !hcp->hcd.no_i2s_capture;
 478         bool has_playback = !hcp->hcd.no_i2s_playback;
 479
 480         if (!((has_playback && tx) || (has_capture && !tx)))
 481                 return;
 482
 483         hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN;
 484         hcp->hcd.ops->audio_shutdown(dai->dev->parent, hcp->hcd.data);
 485
 486         mutex_lock(&hcp->lock);
 487         hcp->busy = false;
 488         mutex_unlock(&hcp->lock);
 489 }
 490
 491 static int hdmi_codec_fill_codec_params(struct snd_soc_dai *dai,
 492                                         unsigned int sample_width,
 493                                         unsigned int sample_rate,
 494                                         unsigned int channels,
 495                                         struct hdmi_codec_params *hp)
 496 {
 497         struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);
 498         int idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN;
 499         u8 ca_id = 0;
 500         bool pcm_audio = !(hcp->iec_status[0] & IEC958_AES0_NONAUDIO);
 501
 502         if (pcm_audio) {
 503                 /* Select a channel allocation that matches with ELD and pcm channels */
 504                 idx = hdmi_codec_get_ch_alloc_table_idx(hcp, channels);
 505
 506                 if (idx < 0) {
 507                         dev_err(dai->dev, "Not able to map channels to speakers (%d)\n",
 508                                 idx);
 509                         hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN;
 510                         return idx;
 511                 }
 512
 513                 ca_id = hdmi_codec_channel_alloc[idx].ca_id;
 514         }
 515
 516         memset(hp, 0, sizeof(*hp));
 517
 518         hdmi_audio_infoframe_init(&hp->cea);
 519
 520         if (pcm_audio)
 521                 hp->cea.channels = channels;
 522         else
 523                 hp->cea.channels = 0;
 524
 525         hp->cea.coding_type = HDMI_AUDIO_CODING_TYPE_STREAM;
 526         hp->cea.sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM;
 527         hp->cea.sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM;
 528         hp->cea.channel_allocation = ca_id;
 529
 530         hp->sample_width = sample_width;
 531         hp->sample_rate = sample_rate;
 532         hp->channels = channels;
 533
 534         if (pcm_audio)
 535                 hcp->chmap_idx = ca_id;
 536         else
 537                 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN;
 538
 539         return 0;
 540 }
 541
 542 static int hdmi_codec_hw_params(struct snd_pcm_substream *substream,
 543                                 struct snd_pcm_hw_params *params,
 544                                 struct snd_soc_dai *dai)
 545 {
 546         struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);
 547         struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai);
 548         struct hdmi_codec_params hp = {
 549                 .iec = {
 550                         .status = { 0 },
 551                         .subcode = { 0 },
 552                         .pad = 0,
 553                         .dig_subframe = { 0 },
 554                 }
 555         };
 556         int ret;
 557
 558         if (!hcp->hcd.ops->hw_params)
 559                 return 0;
 560
 561         dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__,
 562                 params_width(params), params_rate(params),
 563                 params_channels(params));
 564
 565         ret = hdmi_codec_fill_codec_params(dai,
 566                                            params_width(params),
 567                                            params_rate(params),
 568                                            params_channels(params),
 569                                            &hp);
 570         if (ret < 0)
 571                 return ret;
 572
 573         memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status));
 574         ret = snd_pcm_fill_iec958_consumer_hw_params(params, hp.iec.status,
 575                                                      sizeof(hp.iec.status));
 576         if (ret < 0) {
 577                 dev_err(dai->dev, "Creating IEC958 channel status failed %d\n",
 578                         ret);
 579                 return ret;
 580         }
 581
 582         cf->bit_fmt = params_format(params);
 583         return hcp->hcd.ops->hw_params(dai->dev->parent, hcp->hcd.data,
 584                                        cf, &hp);
 585 }
 586
 587 static int hdmi_codec_prepare(struct snd_pcm_substream *substream,
 588                               struct snd_soc_dai *dai)
 589 {
 590         struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);
 591         struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai);
 592         struct snd_pcm_runtime *runtime = substream->runtime;
 593         unsigned int channels = runtime->channels;
 594         unsigned int width = snd_pcm_format_width(runtime->format);
 595         unsigned int rate = runtime->rate;
 596         struct hdmi_codec_params hp;
 597         int ret;
 598
 599         if (!hcp->hcd.ops->prepare)
 600                 return 0;
 601
 602         dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__,
 603                 width, rate, channels);
 604
 605         ret = hdmi_codec_fill_codec_params(dai, width, rate, channels, &hp);
 606         if (ret < 0)
 607                 return ret;
 608
 609         memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status));
 610         ret = snd_pcm_fill_iec958_consumer(runtime, hp.iec.status,
 611                                            sizeof(hp.iec.status));
 612         if (ret < 0) {
 613                 dev_err(dai->dev, "Creating IEC958 channel status failed %d\n",
 614                         ret);
 615                 return ret;
 616         }
 617
 618         cf->bit_fmt = runtime->format;
 619         return hcp->hcd.ops->prepare(dai->dev->parent, hcp->hcd.data,
 620                                      cf, &hp);
 621 }
 622
 623 static int hdmi_codec_i2s_set_fmt(struct snd_soc_dai *dai,
 624                                   unsigned int fmt)
 625 {
 626         struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai);
 627
 628         /* Reset daifmt */
 629         memset(cf, 0, sizeof(*cf));
 630
 631         switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
 632         case SND_SOC_DAIFMT_CBP_CFP:
 633                 cf->bit_clk_provider = 1;
 634                 cf->frame_clk_provider = 1;
 635                 break;
 636         case SND_SOC_DAIFMT_CBC_CFP:
 637                 cf->frame_clk_provider = 1;
 638                 break;
 639         case SND_SOC_DAIFMT_CBP_CFC:
 640                 cf->bit_clk_provider = 1;
 641                 break;
 642         case SND_SOC_DAIFMT_CBC_CFC:
 643                 break;
 644         default:
 645                 return -EINVAL;
 646         }
 647
 648         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 649         case SND_SOC_DAIFMT_NB_NF:
 650                 break;
 651         case SND_SOC_DAIFMT_NB_IF:
 652                 cf->frame_clk_inv = 1;
 653                 break;
 654         case SND_SOC_DAIFMT_IB_NF:
 655                 cf->bit_clk_inv = 1;
 656                 break;
 657         case SND_SOC_DAIFMT_IB_IF:
 658                 cf->frame_clk_inv = 1;
 659                 cf->bit_clk_inv = 1;
 660                 break;
 661         }
 662
 663         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 664         case SND_SOC_DAIFMT_I2S:
 665                 cf->fmt = HDMI_I2S;
 666                 break;
 667         case SND_SOC_DAIFMT_DSP_A:
 668                 cf->fmt = HDMI_DSP_A;
 669                 break;
 670         case SND_SOC_DAIFMT_DSP_B:
 671                 cf->fmt = HDMI_DSP_B;
 672                 break;
 673         case SND_SOC_DAIFMT_RIGHT_J:
 674                 cf->fmt = HDMI_RIGHT_J;
 675                 break;
 676         case SND_SOC_DAIFMT_LEFT_J:
 677                 cf->fmt = HDMI_LEFT_J;
 678                 break;
 679         case SND_SOC_DAIFMT_AC97:
 680                 cf->fmt = HDMI_AC97;
 681                 break;
 682         default:
 683                 dev_err(dai->dev, "Invalid DAI interface format\n");
 684                 return -EINVAL;
 685         }
 686
 687         return 0;
 688 }
 689
 690 static int hdmi_codec_mute(struct snd_soc_dai *dai, int mute, int direction)
 691 {
 692         struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);
 693
 694         /*
 695          * ignore if direction was CAPTURE
 696          * and it had .no_capture_mute flag
 697          * see
 698          *      snd_soc_dai_digital_mute()
 699          */
 700         if (hcp->hcd.ops->mute_stream &&
 701             (direction == SNDRV_PCM_STREAM_PLAYBACK ||
 702              !hcp->hcd.ops->no_capture_mute))
 703                 return hcp->hcd.ops->mute_stream(dai->dev->parent,
 704                                                  hcp->hcd.data,
 705                                                  mute, direction);
 706
 707         return -ENOTSUPP;
 708 }
 709
 710 /*
 711  * This driver can select all SND_SOC_DAIFMT_CBx_CFx,
 712  * but need to be selected from Sound Card, not be auto selected.
 713  * Because it might be used from other driver.
 714  * For example,
 715  *      ${LINUX}/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c
 716  */
 717 static u64 hdmi_codec_formats =
 718         SND_SOC_POSSIBLE_DAIFMT_NB_NF   |
 719         SND_SOC_POSSIBLE_DAIFMT_NB_IF   |
 720         SND_SOC_POSSIBLE_DAIFMT_IB_NF   |
 721         SND_SOC_POSSIBLE_DAIFMT_IB_IF   |
 722         SND_SOC_POSSIBLE_DAIFMT_I2S     |
 723         SND_SOC_POSSIBLE_DAIFMT_DSP_A   |
 724         SND_SOC_POSSIBLE_DAIFMT_DSP_B   |
 725         SND_SOC_POSSIBLE_DAIFMT_RIGHT_J |
 726         SND_SOC_POSSIBLE_DAIFMT_LEFT_J  |
 727         SND_SOC_POSSIBLE_DAIFMT_AC97;
 728
 729 #define HDMI_RATES      (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
 730                          SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\
 731                          SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\
 732                          SNDRV_PCM_RATE_192000)
 733
 734 #define SPDIF_FORMATS   (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
 735                          SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE)
 736
 737 /*
 738  * This list is only for formats allowed on the I2S bus. So there is
 739  * some formats listed that are not supported by HDMI interface. For
 740  * instance allowing the 32-bit formats enables 24-precision with CPU
 741  * DAIs that do not support 24-bit formats. If the extra formats cause
 742  * problems, we should add the video side driver an option to disable
 743  * them.
 744  */
 745 #define I2S_FORMATS     (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
 746                          SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE |\
 747                          SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE)
 748
 749 static struct snd_kcontrol_new hdmi_codec_controls[] = {
 750         {
 751                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
 752                 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
 753                 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK),
 754                 .info = hdmi_codec_iec958_info,
 755                 .get = hdmi_codec_iec958_mask_get,
 756         },
 757         {
 758                 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
 759                 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
 760                 .info = hdmi_codec_iec958_info,
 761                 .get = hdmi_codec_iec958_default_get,
 762                 .put = hdmi_codec_iec958_default_put,
 763         },
 764         {
 765                 .access = (SNDRV_CTL_ELEM_ACCESS_READ |
 766                            SNDRV_CTL_ELEM_ACCESS_VOLATILE),
 767                 .iface  = SNDRV_CTL_ELEM_IFACE_PCM,
 768                 .name   = "ELD",
 769                 .info   = hdmi_eld_ctl_info,
 770                 .get    = hdmi_eld_ctl_get,
 771         },
 772 };
 773
 774 static int hdmi_codec_pcm_new(struct snd_soc_pcm_runtime *rtd,
 775                               struct snd_soc_dai *dai)
 776 {
 777         struct snd_soc_dai_driver *drv = dai->driver;
 778         struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);
 779         unsigned int i;
 780         int ret;
 781
 782         ret =  snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK,
 783                                       NULL, drv->playback.channels_max, 0,
 784                                       &hcp->chmap_info);
 785         if (ret < 0)
 786                 return ret;
 787
 788         /* override handlers */
 789         hcp->chmap_info->private_data = hcp;
 790         hcp->chmap_info->kctl->get = hdmi_codec_chmap_ctl_get;
 791
 792         /* default chmap supported is stereo */
 793         hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps;
 794         hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN;
 795
 796         for (i = 0; i < ARRAY_SIZE(hdmi_codec_controls); i++) {
 797                 struct snd_kcontrol *kctl;
 798
 799                 /* add ELD ctl with the device number corresponding to the PCM stream */
 800                 kctl = snd_ctl_new1(&hdmi_codec_controls[i], dai->component);
 801                 if (!kctl)
 802                         return -ENOMEM;
 803
 804                 kctl->id.device = rtd->pcm->device;
 805                 ret = snd_ctl_add(rtd->card->snd_card, kctl);
 806                 if (ret < 0)
 807                         return ret;
 808         }
 809
 810         return 0;
 811 }
 812
 813 static int hdmi_dai_probe(struct snd_soc_dai *dai)
 814 {
 815         struct snd_soc_dapm_context *dapm;
 816         struct hdmi_codec_daifmt *daifmt;
 817         struct snd_soc_dapm_route route[] = {
 818                 {
 819                         .sink = "TX",
 820                         .source = dai->driver->playback.stream_name,
 821                 },
 822                 {
 823                         .sink = dai->driver->capture.stream_name,
 824                         .source = "RX",
 825                 },
 826         };
 827         int ret, i;
 828
 829         dapm = snd_soc_component_get_dapm(dai->component);
 830
 831         /* One of the directions might be omitted for unidirectional DAIs */
 832         for (i = 0; i < ARRAY_SIZE(route); i++) {
 833                 if (!route[i].source || !route[i].sink)
 834                         continue;
 835
 836                 ret = snd_soc_dapm_add_routes(dapm, &route[i], 1);
 837                 if (ret)
 838                         return ret;
 839         }
 840
 841         daifmt = devm_kzalloc(dai->dev, sizeof(*daifmt), GFP_KERNEL);
 842         if (!daifmt)
 843                 return -ENOMEM;
 844
 845         snd_soc_dai_dma_data_set_playback(dai, daifmt);
 846
 847         return 0;
 848 }
 849
 850 static void hdmi_codec_jack_report(struct hdmi_codec_priv *hcp,
 851                                    unsigned int jack_status)
 852 {
 853         if (hcp->jack && jack_status != hcp->jack_status) {
 854                 snd_soc_jack_report(hcp->jack, jack_status, SND_JACK_LINEOUT);
 855                 hcp->jack_status = jack_status;
 856         }
 857 }
 858
 859 static void plugged_cb(struct device *dev, bool plugged)
 860 {
 861         struct hdmi_codec_priv *hcp = dev_get_drvdata(dev);
 862
 863         if (plugged) {
 864                 if (hcp->hcd.ops->get_eld) {
 865                         hcp->hcd.ops->get_eld(dev->parent, hcp->hcd.data,
 866                                             hcp->eld, sizeof(hcp->eld));
 867                 }
 868                 hdmi_codec_jack_report(hcp, SND_JACK_LINEOUT);
 869         } else {
 870                 hdmi_codec_jack_report(hcp, 0);
 871                 memset(hcp->eld, 0, sizeof(hcp->eld));
 872         }
 873 }
 874
 875 static int hdmi_codec_set_jack(struct snd_soc_component *component,
 876                                struct snd_soc_jack *jack,
 877                                void *data)
 878 {
 879         struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component);
 880         int ret = -ENOTSUPP;
 881
 882         if (hcp->hcd.ops->hook_plugged_cb) {
 883                 hcp->jack = jack;
 884                 ret = hcp->hcd.ops->hook_plugged_cb(component->dev->parent,
 885                                                     hcp->hcd.data,
 886                                                     plugged_cb,
 887                                                     component->dev);
 888                 if (ret)
 889                         hcp->jack = NULL;
 890         }
 891         return ret;
 892 }
 893
 894 static int hdmi_dai_spdif_probe(struct snd_soc_dai *dai)
 895 {
 896         struct hdmi_codec_daifmt *cf;
 897         int ret;
 898
 899         ret = hdmi_dai_probe(dai);
 900         if (ret)
 901                 return ret;
 902
 903         cf = snd_soc_dai_dma_data_get_playback(dai);
 904         cf->fmt = HDMI_SPDIF;
 905
 906         return 0;
 907 }
 908
 909 static const struct snd_soc_dai_ops hdmi_codec_i2s_dai_ops = {
 910         .probe                          = hdmi_dai_probe,
 911         .startup                        = hdmi_codec_startup,
 912         .shutdown                       = hdmi_codec_shutdown,
 913         .hw_params                      = hdmi_codec_hw_params,
 914         .prepare                        = hdmi_codec_prepare,
 915         .set_fmt                        = hdmi_codec_i2s_set_fmt,
 916         .mute_stream                    = hdmi_codec_mute,
 917         .pcm_new                        = hdmi_codec_pcm_new,
 918         .auto_selectable_formats        = &hdmi_codec_formats,
 919         .num_auto_selectable_formats    = 1,
 920 };
 921
 922 static const struct snd_soc_dai_ops hdmi_codec_spdif_dai_ops = {
 923         .probe          = hdmi_dai_spdif_probe,
 924         .startup        = hdmi_codec_startup,
 925         .shutdown       = hdmi_codec_shutdown,
 926         .hw_params      = hdmi_codec_hw_params,
 927         .mute_stream    = hdmi_codec_mute,
 928         .pcm_new        = hdmi_codec_pcm_new,
 929 };
 930
 931 static const struct snd_soc_dai_driver hdmi_i2s_dai = {
 932         .name = "i2s-hifi",
 933         .id = DAI_ID_I2S,
 934         .playback = {
 935                 .stream_name = "I2S Playback",
 936                 .channels_min = 2,
 937                 .channels_max = 8,
 938                 .rates = HDMI_RATES,
 939                 .formats = I2S_FORMATS,
 940                 .sig_bits = 24,
 941         },
 942         .capture = {
 943                 .stream_name = "Capture",
 944                 .channels_min = 2,
 945                 .channels_max = 8,
 946                 .rates = HDMI_RATES,
 947                 .formats = I2S_FORMATS,
 948                 .sig_bits = 24,
 949         },
 950         .ops = &hdmi_codec_i2s_dai_ops,
 951 };
 952
 953 static const struct snd_soc_dai_driver hdmi_spdif_dai = {
 954         .name = "spdif-hifi",
 955         .id = DAI_ID_SPDIF,
 956         .playback = {
 957                 .stream_name = "SPDIF Playback",
 958                 .channels_min = 2,
 959                 .channels_max = 2,
 960                 .rates = HDMI_RATES,
 961                 .formats = SPDIF_FORMATS,
 962         },
 963         .capture = {
 964                 .stream_name = "Capture",
 965                 .channels_min = 2,
 966                 .channels_max = 2,
 967                 .rates = HDMI_RATES,
 968                 .formats = SPDIF_FORMATS,
 969         },
 970         .ops = &hdmi_codec_spdif_dai_ops,
 971 };
 972
 973 static int hdmi_of_xlate_dai_id(struct snd_soc_component *component,
 974                                  struct device_node *endpoint)
 975 {
 976         struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component);
 977         int ret = -ENOTSUPP; /* see snd_soc_get_dai_id() */
 978
 979         if (hcp->hcd.ops->get_dai_id)
 980                 ret = hcp->hcd.ops->get_dai_id(component, endpoint);
 981
 982         return ret;
 983 }
 984
 985 static void hdmi_remove(struct snd_soc_component *component)
 986 {
 987         struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component);
 988
 989         if (hcp->hcd.ops->hook_plugged_cb)
 990                 hcp->hcd.ops->hook_plugged_cb(component->dev->parent,
 991                                               hcp->hcd.data, NULL, NULL);
 992 }
 993
 994 static const struct snd_soc_component_driver hdmi_driver = {
 995         .remove                 = hdmi_remove,
 996         .dapm_widgets           = hdmi_widgets,
 997         .num_dapm_widgets       = ARRAY_SIZE(hdmi_widgets),
 998         .of_xlate_dai_id        = hdmi_of_xlate_dai_id,
 999         .idle_bias_on           = 1,
1000         .use_pmdown_time        = 1,
1001         .endianness             = 1,
1002         .set_jack               = hdmi_codec_set_jack,
1003 };
1004
1005 static int hdmi_codec_probe(struct platform_device *pdev)
1006 {
1007         struct hdmi_codec_pdata *hcd = pdev->dev.platform_data;
1008         struct snd_soc_dai_driver *daidrv;
1009         struct device *dev = &pdev->dev;
1010         struct hdmi_codec_priv *hcp;
1011         int dai_count, i = 0;
1012         int ret;
1013
1014         if (!hcd) {
1015                 dev_err(dev, "%s: No platform data\n", __func__);
1016                 return -EINVAL;
1017         }
1018
1019         dai_count = hcd->i2s + hcd->spdif;
1020         if (dai_count < 1 || !hcd->ops ||
1021             (!hcd->ops->hw_params && !hcd->ops->prepare) ||
1022             !hcd->ops->audio_shutdown) {
1023                 dev_err(dev, "%s: Invalid parameters\n", __func__);
1024                 return -EINVAL;
1025         }
1026
1027         hcp = devm_kzalloc(dev, sizeof(*hcp), GFP_KERNEL);
1028         if (!hcp)
1029                 return -ENOMEM;
1030
1031         hcp->hcd = *hcd;
1032         mutex_init(&hcp->lock);
1033
1034         ret = snd_pcm_create_iec958_consumer_default(hcp->iec_status,
1035                                                      sizeof(hcp->iec_status));
1036         if (ret < 0)
1037                 return ret;
1038
1039         daidrv = devm_kcalloc(dev, dai_count, sizeof(*daidrv), GFP_KERNEL);
1040         if (!daidrv)
1041                 return -ENOMEM;
1042
1043         if (hcd->i2s) {
1044                 daidrv[i] = hdmi_i2s_dai;
1045                 daidrv[i].playback.channels_max = hcd->max_i2s_channels;
1046                 if (hcd->no_i2s_playback)
1047                         memset(&daidrv[i].playback, 0,
1048                                sizeof(daidrv[i].playback));
1049                 if (hcd->no_i2s_capture)
1050                         memset(&daidrv[i].capture, 0,
1051                                sizeof(daidrv[i].capture));
1052                 i++;
1053         }
1054
1055         if (hcd->spdif) {
1056                 daidrv[i] = hdmi_spdif_dai;
1057                 if (hcd->no_spdif_playback)
1058                         memset(&daidrv[i].playback, 0,
1059                                sizeof(daidrv[i].playback));
1060                 if (hcd->no_spdif_capture)
1061                         memset(&daidrv[i].capture, 0,
1062                                sizeof(daidrv[i].capture));
1063         }
1064
1065         dev_set_drvdata(dev, hcp);
1066
1067         ret = devm_snd_soc_register_component(dev, &hdmi_driver, daidrv,
1068                                               dai_count);
1069         if (ret) {
1070                 dev_err(dev, "%s: snd_soc_register_component() failed (%d)\n",
1071                         __func__, ret);
1072                 return ret;
1073         }
1074         return 0;
1075 }
1076
1077 static struct platform_driver hdmi_codec_driver = {
1078         .driver = {
1079                 .name = HDMI_CODEC_DRV_NAME,
1080         },
1081         .probe = hdmi_codec_probe,
1082 };
1083
1084 module_platform_driver(hdmi_codec_driver);
1085
1086 MODULE_AUTHOR("Jyri Sarha <jsarha@ti.com>");
1087 MODULE_DESCRIPTION("HDMI Audio Codec Driver");
1088 MODULE_LICENSE("GPL");
1089 MODULE_ALIAS("platform:" HDMI_CODEC_DRV_NAME);