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); 880 881 if (hcp->hcd.ops->hook_plugged_cb) { 882 hcp->jack = jack; 883 return 0; 884 } 885 886 return -ENOTSUPP; 887 } 888 889 static int hdmi_dai_spdif_probe(struct snd_soc_dai *dai) 890 { 891 struct hdmi_codec_daifmt *cf; 892 int ret; 893 894 ret = hdmi_dai_probe(dai); 895 if (ret) 896 return ret; 897 898 cf = snd_soc_dai_dma_data_get_playback(dai); 899 cf->fmt = HDMI_SPDIF; 900 901 return 0; 902 } 903 904 static const struct snd_soc_dai_ops hdmi_codec_i2s_dai_ops = { 905 .probe = hdmi_dai_probe, 906 .startup = hdmi_codec_startup, 907 .shutdown = hdmi_codec_shutdown, 908 .hw_params = hdmi_codec_hw_params, 909 .prepare = hdmi_codec_prepare, 910 .set_fmt = hdmi_codec_i2s_set_fmt, 911 .mute_stream = hdmi_codec_mute, 912 .pcm_new = hdmi_codec_pcm_new, 913 .auto_selectable_formats = &hdmi_codec_formats, 914 .num_auto_selectable_formats = 1, 915 }; 916 917 static const struct snd_soc_dai_ops hdmi_codec_spdif_dai_ops = { 918 .probe = hdmi_dai_spdif_probe, 919 .startup = hdmi_codec_startup, 920 .shutdown = hdmi_codec_shutdown, 921 .hw_params = hdmi_codec_hw_params, 922 .mute_stream = hdmi_codec_mute, 923 .pcm_new = hdmi_codec_pcm_new, 924 }; 925 926 static const struct snd_soc_dai_driver hdmi_i2s_dai = { 927 .name = "i2s-hifi", 928 .id = DAI_ID_I2S, 929 .playback = { 930 .stream_name = "I2S Playback", 931 .channels_min = 2, 932 .channels_max = 8, 933 .rates = HDMI_RATES, 934 .formats = I2S_FORMATS, 935 .sig_bits = 24, 936 }, 937 .capture = { 938 .stream_name = "Capture", 939 .channels_min = 2, 940 .channels_max = 8, 941 .rates = HDMI_RATES, 942 .formats = I2S_FORMATS, 943 .sig_bits = 24, 944 }, 945 .ops = &hdmi_codec_i2s_dai_ops, 946 }; 947 948 static const struct snd_soc_dai_driver hdmi_spdif_dai = { 949 .name = "spdif-hifi", 950 .id = DAI_ID_SPDIF, 951 .playback = { 952 .stream_name = "SPDIF Playback", 953 .channels_min = 2, 954 .channels_max = 2, 955 .rates = HDMI_RATES, 956 .formats = SPDIF_FORMATS, 957 }, 958 .capture = { 959 .stream_name = "Capture", 960 .channels_min = 2, 961 .channels_max = 2, 962 .rates = HDMI_RATES, 963 .formats = SPDIF_FORMATS, 964 }, 965 .ops = &hdmi_codec_spdif_dai_ops, 966 }; 967 968 static int hdmi_of_xlate_dai_id(struct snd_soc_component *component, 969 struct device_node *endpoint) 970 { 971 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 972 int ret = -ENOTSUPP; /* see snd_soc_get_dai_id() */ 973 974 if (hcp->hcd.ops->get_dai_id) 975 ret = hcp->hcd.ops->get_dai_id(component, endpoint); 976 977 return ret; 978 } 979 980 static int hdmi_probe(struct snd_soc_component *component) 981 { 982 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 983 int ret = 0; 984 985 if (hcp->hcd.ops->hook_plugged_cb) { 986 ret = hcp->hcd.ops->hook_plugged_cb(component->dev->parent, 987 hcp->hcd.data, 988 plugged_cb, 989 component->dev); 990 } 991 992 return ret; 993 } 994 995 static void hdmi_remove(struct snd_soc_component *component) 996 { 997 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 998 999 if (hcp->hcd.ops->hook_plugged_cb) 1000 hcp->hcd.ops->hook_plugged_cb(component->dev->parent, 1001 hcp->hcd.data, NULL, NULL); 1002 } 1003 1004 static const struct snd_soc_component_driver hdmi_driver = { 1005 .probe = hdmi_probe, 1006 .remove = hdmi_remove, 1007 .dapm_widgets = hdmi_widgets, 1008 .num_dapm_widgets = ARRAY_SIZE(hdmi_widgets), 1009 .of_xlate_dai_id = hdmi_of_xlate_dai_id, 1010 .idle_bias_on = 1, 1011 .use_pmdown_time = 1, 1012 .endianness = 1, 1013 .set_jack = hdmi_codec_set_jack, 1014 }; 1015 1016 static int hdmi_codec_probe(struct platform_device *pdev) 1017 { 1018 struct hdmi_codec_pdata *hcd = pdev->dev.platform_data; 1019 struct snd_soc_dai_driver *daidrv; 1020 struct device *dev = &pdev->dev; 1021 struct hdmi_codec_priv *hcp; 1022 int dai_count, i = 0; 1023 int ret; 1024 1025 if (!hcd) { 1026 dev_err(dev, "%s: No platform data\n", __func__); 1027 return -EINVAL; 1028 } 1029 1030 dai_count = hcd->i2s + hcd->spdif; 1031 if (dai_count < 1 || !hcd->ops || 1032 (!hcd->ops->hw_params && !hcd->ops->prepare) || 1033 !hcd->ops->audio_shutdown) { 1034 dev_err(dev, "%s: Invalid parameters\n", __func__); 1035 return -EINVAL; 1036 } 1037 1038 hcp = devm_kzalloc(dev, sizeof(*hcp), GFP_KERNEL); 1039 if (!hcp) 1040 return -ENOMEM; 1041 1042 hcp->hcd = *hcd; 1043 mutex_init(&hcp->lock); 1044 1045 ret = snd_pcm_create_iec958_consumer_default(hcp->iec_status, 1046 sizeof(hcp->iec_status)); 1047 if (ret < 0) 1048 return ret; 1049 1050 daidrv = devm_kcalloc(dev, dai_count, sizeof(*daidrv), GFP_KERNEL); 1051 if (!daidrv) 1052 return -ENOMEM; 1053 1054 if (hcd->i2s) { 1055 daidrv[i] = hdmi_i2s_dai; 1056 daidrv[i].playback.channels_max = hcd->max_i2s_channels; 1057 if (hcd->no_i2s_playback) 1058 memset(&daidrv[i].playback, 0, 1059 sizeof(daidrv[i].playback)); 1060 if (hcd->no_i2s_capture) 1061 memset(&daidrv[i].capture, 0, 1062 sizeof(daidrv[i].capture)); 1063 i++; 1064 } 1065 1066 if (hcd->spdif) { 1067 daidrv[i] = hdmi_spdif_dai; 1068 if (hcd->no_spdif_playback) 1069 memset(&daidrv[i].playback, 0, 1070 sizeof(daidrv[i].playback)); 1071 if (hcd->no_spdif_capture) 1072 memset(&daidrv[i].capture, 0, 1073 sizeof(daidrv[i].capture)); 1074 } 1075 1076 dev_set_drvdata(dev, hcp); 1077 1078 ret = devm_snd_soc_register_component(dev, &hdmi_driver, daidrv, 1079 dai_count); 1080 if (ret) { 1081 dev_err(dev, "%s: snd_soc_register_component() failed (%d)\n", 1082 __func__, ret); 1083 return ret; 1084 } 1085 return 0; 1086 } 1087 1088 static struct platform_driver hdmi_codec_driver = { 1089 .driver = { 1090 .name = HDMI_CODEC_DRV_NAME, 1091 }, 1092 .probe = hdmi_codec_probe, 1093 }; 1094 1095 module_platform_driver(hdmi_codec_driver); 1096 1097 MODULE_AUTHOR("Jyri Sarha <jsarha@ti.com>"); 1098 MODULE_DESCRIPTION("HDMI Audio Codec Driver"); 1099 MODULE_LICENSE("GPL"); 1100 MODULE_ALIAS("platform:" HDMI_CODEC_DRV_NAME); 1101