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 hcp->chmap_idx = idx; 535 536 return 0; 537 } 538 539 static int hdmi_codec_hw_params(struct snd_pcm_substream *substream, 540 struct snd_pcm_hw_params *params, 541 struct snd_soc_dai *dai) 542 { 543 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 544 struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai); 545 struct hdmi_codec_params hp = { 546 .iec = { 547 .status = { 0 }, 548 .subcode = { 0 }, 549 .pad = 0, 550 .dig_subframe = { 0 }, 551 } 552 }; 553 int ret; 554 555 if (!hcp->hcd.ops->hw_params) 556 return 0; 557 558 dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__, 559 params_width(params), params_rate(params), 560 params_channels(params)); 561 562 ret = hdmi_codec_fill_codec_params(dai, 563 params_width(params), 564 params_rate(params), 565 params_channels(params), 566 &hp); 567 if (ret < 0) 568 return ret; 569 570 memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status)); 571 ret = snd_pcm_fill_iec958_consumer_hw_params(params, hp.iec.status, 572 sizeof(hp.iec.status)); 573 if (ret < 0) { 574 dev_err(dai->dev, "Creating IEC958 channel status failed %d\n", 575 ret); 576 return ret; 577 } 578 579 cf->bit_fmt = params_format(params); 580 return hcp->hcd.ops->hw_params(dai->dev->parent, hcp->hcd.data, 581 cf, &hp); 582 } 583 584 static int hdmi_codec_prepare(struct snd_pcm_substream *substream, 585 struct snd_soc_dai *dai) 586 { 587 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 588 struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai); 589 struct snd_pcm_runtime *runtime = substream->runtime; 590 unsigned int channels = runtime->channels; 591 unsigned int width = snd_pcm_format_width(runtime->format); 592 unsigned int rate = runtime->rate; 593 struct hdmi_codec_params hp; 594 int ret; 595 596 if (!hcp->hcd.ops->prepare) 597 return 0; 598 599 dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__, 600 width, rate, channels); 601 602 ret = hdmi_codec_fill_codec_params(dai, width, rate, channels, &hp); 603 if (ret < 0) 604 return ret; 605 606 memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status)); 607 ret = snd_pcm_fill_iec958_consumer(runtime, hp.iec.status, 608 sizeof(hp.iec.status)); 609 if (ret < 0) { 610 dev_err(dai->dev, "Creating IEC958 channel status failed %d\n", 611 ret); 612 return ret; 613 } 614 615 cf->bit_fmt = runtime->format; 616 return hcp->hcd.ops->prepare(dai->dev->parent, hcp->hcd.data, 617 cf, &hp); 618 } 619 620 static int hdmi_codec_i2s_set_fmt(struct snd_soc_dai *dai, 621 unsigned int fmt) 622 { 623 struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai); 624 625 /* Reset daifmt */ 626 memset(cf, 0, sizeof(*cf)); 627 628 switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { 629 case SND_SOC_DAIFMT_CBP_CFP: 630 cf->bit_clk_provider = 1; 631 cf->frame_clk_provider = 1; 632 break; 633 case SND_SOC_DAIFMT_CBC_CFP: 634 cf->frame_clk_provider = 1; 635 break; 636 case SND_SOC_DAIFMT_CBP_CFC: 637 cf->bit_clk_provider = 1; 638 break; 639 case SND_SOC_DAIFMT_CBC_CFC: 640 break; 641 default: 642 return -EINVAL; 643 } 644 645 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 646 case SND_SOC_DAIFMT_NB_NF: 647 break; 648 case SND_SOC_DAIFMT_NB_IF: 649 cf->frame_clk_inv = 1; 650 break; 651 case SND_SOC_DAIFMT_IB_NF: 652 cf->bit_clk_inv = 1; 653 break; 654 case SND_SOC_DAIFMT_IB_IF: 655 cf->frame_clk_inv = 1; 656 cf->bit_clk_inv = 1; 657 break; 658 } 659 660 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 661 case SND_SOC_DAIFMT_I2S: 662 cf->fmt = HDMI_I2S; 663 break; 664 case SND_SOC_DAIFMT_DSP_A: 665 cf->fmt = HDMI_DSP_A; 666 break; 667 case SND_SOC_DAIFMT_DSP_B: 668 cf->fmt = HDMI_DSP_B; 669 break; 670 case SND_SOC_DAIFMT_RIGHT_J: 671 cf->fmt = HDMI_RIGHT_J; 672 break; 673 case SND_SOC_DAIFMT_LEFT_J: 674 cf->fmt = HDMI_LEFT_J; 675 break; 676 case SND_SOC_DAIFMT_AC97: 677 cf->fmt = HDMI_AC97; 678 break; 679 default: 680 dev_err(dai->dev, "Invalid DAI interface format\n"); 681 return -EINVAL; 682 } 683 684 return 0; 685 } 686 687 static int hdmi_codec_mute(struct snd_soc_dai *dai, int mute, int direction) 688 { 689 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 690 691 /* 692 * ignore if direction was CAPTURE 693 * and it had .no_capture_mute flag 694 * see 695 * snd_soc_dai_digital_mute() 696 */ 697 if (hcp->hcd.ops->mute_stream && 698 (direction == SNDRV_PCM_STREAM_PLAYBACK || 699 !hcp->hcd.ops->no_capture_mute)) 700 return hcp->hcd.ops->mute_stream(dai->dev->parent, 701 hcp->hcd.data, 702 mute, direction); 703 704 return -ENOTSUPP; 705 } 706 707 /* 708 * This driver can select all SND_SOC_DAIFMT_CBx_CFx, 709 * but need to be selected from Sound Card, not be auto selected. 710 * Because it might be used from other driver. 711 * For example, 712 * ${LINUX}/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c 713 */ 714 static u64 hdmi_codec_formats = 715 SND_SOC_POSSIBLE_DAIFMT_NB_NF | 716 SND_SOC_POSSIBLE_DAIFMT_NB_IF | 717 SND_SOC_POSSIBLE_DAIFMT_IB_NF | 718 SND_SOC_POSSIBLE_DAIFMT_IB_IF | 719 SND_SOC_POSSIBLE_DAIFMT_I2S | 720 SND_SOC_POSSIBLE_DAIFMT_DSP_A | 721 SND_SOC_POSSIBLE_DAIFMT_DSP_B | 722 SND_SOC_POSSIBLE_DAIFMT_RIGHT_J | 723 SND_SOC_POSSIBLE_DAIFMT_LEFT_J | 724 SND_SOC_POSSIBLE_DAIFMT_AC97; 725 726 static const struct snd_soc_dai_ops hdmi_codec_i2s_dai_ops = { 727 .startup = hdmi_codec_startup, 728 .shutdown = hdmi_codec_shutdown, 729 .hw_params = hdmi_codec_hw_params, 730 .prepare = hdmi_codec_prepare, 731 .set_fmt = hdmi_codec_i2s_set_fmt, 732 .mute_stream = hdmi_codec_mute, 733 .auto_selectable_formats = &hdmi_codec_formats, 734 .num_auto_selectable_formats = 1, 735 }; 736 737 static const struct snd_soc_dai_ops hdmi_codec_spdif_dai_ops = { 738 .startup = hdmi_codec_startup, 739 .shutdown = hdmi_codec_shutdown, 740 .hw_params = hdmi_codec_hw_params, 741 .mute_stream = hdmi_codec_mute, 742 }; 743 744 #define HDMI_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ 745 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\ 746 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\ 747 SNDRV_PCM_RATE_192000) 748 749 #define SPDIF_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 750 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE) 751 752 /* 753 * This list is only for formats allowed on the I2S bus. So there is 754 * some formats listed that are not supported by HDMI interface. For 755 * instance allowing the 32-bit formats enables 24-precision with CPU 756 * DAIs that do not support 24-bit formats. If the extra formats cause 757 * problems, we should add the video side driver an option to disable 758 * them. 759 */ 760 #define I2S_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 761 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE |\ 762 SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE) 763 764 static struct snd_kcontrol_new hdmi_codec_controls[] = { 765 { 766 .access = SNDRV_CTL_ELEM_ACCESS_READ, 767 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 768 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK), 769 .info = hdmi_codec_iec958_info, 770 .get = hdmi_codec_iec958_mask_get, 771 }, 772 { 773 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 774 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT), 775 .info = hdmi_codec_iec958_info, 776 .get = hdmi_codec_iec958_default_get, 777 .put = hdmi_codec_iec958_default_put, 778 }, 779 { 780 .access = (SNDRV_CTL_ELEM_ACCESS_READ | 781 SNDRV_CTL_ELEM_ACCESS_VOLATILE), 782 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 783 .name = "ELD", 784 .info = hdmi_eld_ctl_info, 785 .get = hdmi_eld_ctl_get, 786 }, 787 }; 788 789 static int hdmi_codec_pcm_new(struct snd_soc_pcm_runtime *rtd, 790 struct snd_soc_dai *dai) 791 { 792 struct snd_soc_dai_driver *drv = dai->driver; 793 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 794 unsigned int i; 795 int ret; 796 797 ret = snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK, 798 NULL, drv->playback.channels_max, 0, 799 &hcp->chmap_info); 800 if (ret < 0) 801 return ret; 802 803 /* override handlers */ 804 hcp->chmap_info->private_data = hcp; 805 hcp->chmap_info->kctl->get = hdmi_codec_chmap_ctl_get; 806 807 /* default chmap supported is stereo */ 808 hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps; 809 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 810 811 for (i = 0; i < ARRAY_SIZE(hdmi_codec_controls); i++) { 812 struct snd_kcontrol *kctl; 813 814 /* add ELD ctl with the device number corresponding to the PCM stream */ 815 kctl = snd_ctl_new1(&hdmi_codec_controls[i], dai->component); 816 if (!kctl) 817 return -ENOMEM; 818 819 kctl->id.device = rtd->pcm->device; 820 ret = snd_ctl_add(rtd->card->snd_card, kctl); 821 if (ret < 0) 822 return ret; 823 } 824 825 return 0; 826 } 827 828 static int hdmi_dai_probe(struct snd_soc_dai *dai) 829 { 830 struct snd_soc_dapm_context *dapm; 831 struct hdmi_codec_daifmt *daifmt; 832 struct snd_soc_dapm_route route[] = { 833 { 834 .sink = "TX", 835 .source = dai->driver->playback.stream_name, 836 }, 837 { 838 .sink = dai->driver->capture.stream_name, 839 .source = "RX", 840 }, 841 }; 842 int ret, i; 843 844 dapm = snd_soc_component_get_dapm(dai->component); 845 846 /* One of the directions might be omitted for unidirectional DAIs */ 847 for (i = 0; i < ARRAY_SIZE(route); i++) { 848 if (!route[i].source || !route[i].sink) 849 continue; 850 851 ret = snd_soc_dapm_add_routes(dapm, &route[i], 1); 852 if (ret) 853 return ret; 854 } 855 856 daifmt = devm_kzalloc(dai->dev, sizeof(*daifmt), GFP_KERNEL); 857 if (!daifmt) 858 return -ENOMEM; 859 860 snd_soc_dai_dma_data_set_playback(dai, daifmt); 861 862 return 0; 863 } 864 865 static void hdmi_codec_jack_report(struct hdmi_codec_priv *hcp, 866 unsigned int jack_status) 867 { 868 if (hcp->jack && jack_status != hcp->jack_status) { 869 snd_soc_jack_report(hcp->jack, jack_status, SND_JACK_LINEOUT); 870 hcp->jack_status = jack_status; 871 } 872 } 873 874 static void plugged_cb(struct device *dev, bool plugged) 875 { 876 struct hdmi_codec_priv *hcp = dev_get_drvdata(dev); 877 878 if (plugged) { 879 if (hcp->hcd.ops->get_eld) { 880 hcp->hcd.ops->get_eld(dev->parent, hcp->hcd.data, 881 hcp->eld, sizeof(hcp->eld)); 882 } 883 hdmi_codec_jack_report(hcp, SND_JACK_LINEOUT); 884 } else { 885 hdmi_codec_jack_report(hcp, 0); 886 memset(hcp->eld, 0, sizeof(hcp->eld)); 887 } 888 } 889 890 static int hdmi_codec_set_jack(struct snd_soc_component *component, 891 struct snd_soc_jack *jack, 892 void *data) 893 { 894 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 895 int ret = -ENOTSUPP; 896 897 if (hcp->hcd.ops->hook_plugged_cb) { 898 hcp->jack = jack; 899 ret = hcp->hcd.ops->hook_plugged_cb(component->dev->parent, 900 hcp->hcd.data, 901 plugged_cb, 902 component->dev); 903 if (ret) 904 hcp->jack = NULL; 905 } 906 return ret; 907 } 908 909 static int hdmi_dai_spdif_probe(struct snd_soc_dai *dai) 910 { 911 struct hdmi_codec_daifmt *cf; 912 int ret; 913 914 ret = hdmi_dai_probe(dai); 915 if (ret) 916 return ret; 917 918 cf = snd_soc_dai_dma_data_get_playback(dai); 919 cf->fmt = HDMI_SPDIF; 920 921 return 0; 922 } 923 924 static const struct snd_soc_dai_driver hdmi_i2s_dai = { 925 .name = "i2s-hifi", 926 .id = DAI_ID_I2S, 927 .probe = hdmi_dai_probe, 928 .playback = { 929 .stream_name = "I2S Playback", 930 .channels_min = 2, 931 .channels_max = 8, 932 .rates = HDMI_RATES, 933 .formats = I2S_FORMATS, 934 .sig_bits = 24, 935 }, 936 .capture = { 937 .stream_name = "Capture", 938 .channels_min = 2, 939 .channels_max = 8, 940 .rates = HDMI_RATES, 941 .formats = I2S_FORMATS, 942 .sig_bits = 24, 943 }, 944 .ops = &hdmi_codec_i2s_dai_ops, 945 .pcm_new = hdmi_codec_pcm_new, 946 }; 947 948 static const struct snd_soc_dai_driver hdmi_spdif_dai = { 949 .name = "spdif-hifi", 950 .id = DAI_ID_SPDIF, 951 .probe = hdmi_dai_spdif_probe, 952 .playback = { 953 .stream_name = "SPDIF Playback", 954 .channels_min = 2, 955 .channels_max = 2, 956 .rates = HDMI_RATES, 957 .formats = SPDIF_FORMATS, 958 }, 959 .capture = { 960 .stream_name = "Capture", 961 .channels_min = 2, 962 .channels_max = 2, 963 .rates = HDMI_RATES, 964 .formats = SPDIF_FORMATS, 965 }, 966 .ops = &hdmi_codec_spdif_dai_ops, 967 .pcm_new = hdmi_codec_pcm_new, 968 }; 969 970 static int hdmi_of_xlate_dai_id(struct snd_soc_component *component, 971 struct device_node *endpoint) 972 { 973 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 974 int ret = -ENOTSUPP; /* see snd_soc_get_dai_id() */ 975 976 if (hcp->hcd.ops->get_dai_id) 977 ret = hcp->hcd.ops->get_dai_id(component, endpoint); 978 979 return ret; 980 } 981 982 static void hdmi_remove(struct snd_soc_component *component) 983 { 984 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 985 986 if (hcp->hcd.ops->hook_plugged_cb) 987 hcp->hcd.ops->hook_plugged_cb(component->dev->parent, 988 hcp->hcd.data, NULL, NULL); 989 } 990 991 static const struct snd_soc_component_driver hdmi_driver = { 992 .remove = hdmi_remove, 993 .dapm_widgets = hdmi_widgets, 994 .num_dapm_widgets = ARRAY_SIZE(hdmi_widgets), 995 .of_xlate_dai_id = hdmi_of_xlate_dai_id, 996 .idle_bias_on = 1, 997 .use_pmdown_time = 1, 998 .endianness = 1, 999 .set_jack = hdmi_codec_set_jack, 1000 }; 1001 1002 static int hdmi_codec_probe(struct platform_device *pdev) 1003 { 1004 struct hdmi_codec_pdata *hcd = pdev->dev.platform_data; 1005 struct snd_soc_dai_driver *daidrv; 1006 struct device *dev = &pdev->dev; 1007 struct hdmi_codec_priv *hcp; 1008 int dai_count, i = 0; 1009 int ret; 1010 1011 if (!hcd) { 1012 dev_err(dev, "%s: No platform data\n", __func__); 1013 return -EINVAL; 1014 } 1015 1016 dai_count = hcd->i2s + hcd->spdif; 1017 if (dai_count < 1 || !hcd->ops || 1018 (!hcd->ops->hw_params && !hcd->ops->prepare) || 1019 !hcd->ops->audio_shutdown) { 1020 dev_err(dev, "%s: Invalid parameters\n", __func__); 1021 return -EINVAL; 1022 } 1023 1024 hcp = devm_kzalloc(dev, sizeof(*hcp), GFP_KERNEL); 1025 if (!hcp) 1026 return -ENOMEM; 1027 1028 hcp->hcd = *hcd; 1029 mutex_init(&hcp->lock); 1030 1031 ret = snd_pcm_create_iec958_consumer_default(hcp->iec_status, 1032 sizeof(hcp->iec_status)); 1033 if (ret < 0) 1034 return ret; 1035 1036 daidrv = devm_kcalloc(dev, dai_count, sizeof(*daidrv), GFP_KERNEL); 1037 if (!daidrv) 1038 return -ENOMEM; 1039 1040 if (hcd->i2s) { 1041 daidrv[i] = hdmi_i2s_dai; 1042 daidrv[i].playback.channels_max = hcd->max_i2s_channels; 1043 if (hcd->no_i2s_playback) 1044 memset(&daidrv[i].playback, 0, 1045 sizeof(daidrv[i].playback)); 1046 if (hcd->no_i2s_capture) 1047 memset(&daidrv[i].capture, 0, 1048 sizeof(daidrv[i].capture)); 1049 i++; 1050 } 1051 1052 if (hcd->spdif) { 1053 daidrv[i] = hdmi_spdif_dai; 1054 if (hcd->no_spdif_playback) 1055 memset(&daidrv[i].playback, 0, 1056 sizeof(daidrv[i].playback)); 1057 if (hcd->no_spdif_capture) 1058 memset(&daidrv[i].capture, 0, 1059 sizeof(daidrv[i].capture)); 1060 } 1061 1062 dev_set_drvdata(dev, hcp); 1063 1064 ret = devm_snd_soc_register_component(dev, &hdmi_driver, daidrv, 1065 dai_count); 1066 if (ret) { 1067 dev_err(dev, "%s: snd_soc_register_component() failed (%d)\n", 1068 __func__, ret); 1069 return ret; 1070 } 1071 return 0; 1072 } 1073 1074 static struct platform_driver hdmi_codec_driver = { 1075 .driver = { 1076 .name = HDMI_CODEC_DRV_NAME, 1077 }, 1078 .probe = hdmi_codec_probe, 1079 }; 1080 1081 module_platform_driver(hdmi_codec_driver); 1082 1083 MODULE_AUTHOR("Jyri Sarha <jsarha@ti.com>"); 1084 MODULE_DESCRIPTION("HDMI Audio Codec Driver"); 1085 MODULE_LICENSE("GPL"); 1086 MODULE_ALIAS("platform:" HDMI_CODEC_DRV_NAME); 1087