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 #include <drm/drm_eld.h> 21 22 #define HDMI_CODEC_CHMAP_IDX_UNKNOWN -1 23 24 /* 25 * CEA speaker placement for HDMI 1.4: 26 * 27 * FL FLC FC FRC FR FRW 28 * 29 * LFE 30 * 31 * RL RLC RC RRC RR 32 * 33 * Speaker placement has to be extended to support HDMI 2.0 34 */ 35 enum hdmi_codec_cea_spk_placement { 36 FL = BIT(0), /* Front Left */ 37 FC = BIT(1), /* Front Center */ 38 FR = BIT(2), /* Front Right */ 39 FLC = BIT(3), /* Front Left Center */ 40 FRC = BIT(4), /* Front Right Center */ 41 RL = BIT(5), /* Rear Left */ 42 RC = BIT(6), /* Rear Center */ 43 RR = BIT(7), /* Rear Right */ 44 RLC = BIT(8), /* Rear Left Center */ 45 RRC = BIT(9), /* Rear Right Center */ 46 LFE = BIT(10), /* Low Frequency Effect */ 47 }; 48 49 /* 50 * cea Speaker allocation structure 51 */ 52 struct hdmi_codec_cea_spk_alloc { 53 const int ca_id; 54 unsigned int n_ch; 55 unsigned long mask; 56 }; 57 58 /* Channel maps stereo HDMI */ 59 static const struct snd_pcm_chmap_elem hdmi_codec_stereo_chmaps[] = { 60 { .channels = 2, 61 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } }, 62 { } 63 }; 64 65 /* Channel maps for multi-channel playbacks, up to 8 n_ch */ 66 static const struct snd_pcm_chmap_elem hdmi_codec_8ch_chmaps[] = { 67 { .channels = 2, /* CA_ID 0x00 */ 68 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } }, 69 { .channels = 4, /* CA_ID 0x01 */ 70 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 71 SNDRV_CHMAP_NA } }, 72 { .channels = 4, /* CA_ID 0x02 */ 73 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 74 SNDRV_CHMAP_FC } }, 75 { .channels = 4, /* CA_ID 0x03 */ 76 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 77 SNDRV_CHMAP_FC } }, 78 { .channels = 6, /* CA_ID 0x04 */ 79 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 80 SNDRV_CHMAP_NA, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 81 { .channels = 6, /* CA_ID 0x05 */ 82 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 83 SNDRV_CHMAP_NA, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 84 { .channels = 6, /* CA_ID 0x06 */ 85 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 86 SNDRV_CHMAP_FC, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 87 { .channels = 6, /* CA_ID 0x07 */ 88 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 89 SNDRV_CHMAP_FC, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 90 { .channels = 6, /* CA_ID 0x08 */ 91 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 92 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, 93 { .channels = 6, /* CA_ID 0x09 */ 94 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 95 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, 96 { .channels = 6, /* CA_ID 0x0A */ 97 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 98 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, 99 { .channels = 6, /* CA_ID 0x0B */ 100 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 101 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, 102 { .channels = 8, /* CA_ID 0x0C */ 103 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 104 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 105 SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 106 { .channels = 8, /* CA_ID 0x0D */ 107 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 108 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 109 SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 110 { .channels = 8, /* CA_ID 0x0E */ 111 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 112 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 113 SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 114 { .channels = 8, /* CA_ID 0x0F */ 115 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 116 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 117 SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 118 { .channels = 8, /* CA_ID 0x10 */ 119 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 120 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 121 SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, 122 { .channels = 8, /* CA_ID 0x11 */ 123 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 124 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 125 SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, 126 { .channels = 8, /* CA_ID 0x12 */ 127 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 128 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 129 SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, 130 { .channels = 8, /* CA_ID 0x13 */ 131 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 132 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 133 SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, 134 { .channels = 8, /* CA_ID 0x14 */ 135 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 136 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 137 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 138 { .channels = 8, /* CA_ID 0x15 */ 139 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 140 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 141 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 142 { .channels = 8, /* CA_ID 0x16 */ 143 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 144 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 145 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 146 { .channels = 8, /* CA_ID 0x17 */ 147 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 148 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 149 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 150 { .channels = 8, /* CA_ID 0x18 */ 151 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 152 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 153 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 154 { .channels = 8, /* CA_ID 0x19 */ 155 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 156 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 157 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 158 { .channels = 8, /* CA_ID 0x1A */ 159 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 160 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 161 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 162 { .channels = 8, /* CA_ID 0x1B */ 163 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 164 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 165 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 166 { .channels = 8, /* CA_ID 0x1C */ 167 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 168 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 169 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 170 { .channels = 8, /* CA_ID 0x1D */ 171 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 172 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 173 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 174 { .channels = 8, /* CA_ID 0x1E */ 175 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 176 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 177 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 178 { .channels = 8, /* CA_ID 0x1F */ 179 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 180 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 181 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 182 { } 183 }; 184 185 /* 186 * hdmi_codec_channel_alloc: speaker configuration available for CEA 187 * 188 * This is an ordered list that must match with hdmi_codec_8ch_chmaps struct 189 * The preceding ones have better chances to be selected by 190 * hdmi_codec_get_ch_alloc_table_idx(). 191 */ 192 static const struct hdmi_codec_cea_spk_alloc hdmi_codec_channel_alloc[] = { 193 { .ca_id = 0x00, .n_ch = 2, 194 .mask = FL | FR}, 195 /* 2.1 */ 196 { .ca_id = 0x01, .n_ch = 4, 197 .mask = FL | FR | LFE}, 198 /* Dolby Surround */ 199 { .ca_id = 0x02, .n_ch = 4, 200 .mask = FL | FR | FC }, 201 /* surround51 */ 202 { .ca_id = 0x0b, .n_ch = 6, 203 .mask = FL | FR | LFE | FC | RL | RR}, 204 /* surround40 */ 205 { .ca_id = 0x08, .n_ch = 6, 206 .mask = FL | FR | RL | RR }, 207 /* surround41 */ 208 { .ca_id = 0x09, .n_ch = 6, 209 .mask = FL | FR | LFE | RL | RR }, 210 /* surround50 */ 211 { .ca_id = 0x0a, .n_ch = 6, 212 .mask = FL | FR | FC | RL | RR }, 213 /* 6.1 */ 214 { .ca_id = 0x0f, .n_ch = 8, 215 .mask = FL | FR | LFE | FC | RL | RR | RC }, 216 /* surround71 */ 217 { .ca_id = 0x13, .n_ch = 8, 218 .mask = FL | FR | LFE | FC | RL | RR | RLC | RRC }, 219 /* others */ 220 { .ca_id = 0x03, .n_ch = 8, 221 .mask = FL | FR | LFE | FC }, 222 { .ca_id = 0x04, .n_ch = 8, 223 .mask = FL | FR | RC}, 224 { .ca_id = 0x05, .n_ch = 8, 225 .mask = FL | FR | LFE | RC }, 226 { .ca_id = 0x06, .n_ch = 8, 227 .mask = FL | FR | FC | RC }, 228 { .ca_id = 0x07, .n_ch = 8, 229 .mask = FL | FR | LFE | FC | RC }, 230 { .ca_id = 0x0c, .n_ch = 8, 231 .mask = FL | FR | RC | RL | RR }, 232 { .ca_id = 0x0d, .n_ch = 8, 233 .mask = FL | FR | LFE | RL | RR | RC }, 234 { .ca_id = 0x0e, .n_ch = 8, 235 .mask = FL | FR | FC | RL | RR | RC }, 236 { .ca_id = 0x10, .n_ch = 8, 237 .mask = FL | FR | RL | RR | RLC | RRC }, 238 { .ca_id = 0x11, .n_ch = 8, 239 .mask = FL | FR | LFE | RL | RR | RLC | RRC }, 240 { .ca_id = 0x12, .n_ch = 8, 241 .mask = FL | FR | FC | RL | RR | RLC | RRC }, 242 { .ca_id = 0x14, .n_ch = 8, 243 .mask = FL | FR | FLC | FRC }, 244 { .ca_id = 0x15, .n_ch = 8, 245 .mask = FL | FR | LFE | FLC | FRC }, 246 { .ca_id = 0x16, .n_ch = 8, 247 .mask = FL | FR | FC | FLC | FRC }, 248 { .ca_id = 0x17, .n_ch = 8, 249 .mask = FL | FR | LFE | FC | FLC | FRC }, 250 { .ca_id = 0x18, .n_ch = 8, 251 .mask = FL | FR | RC | FLC | FRC }, 252 { .ca_id = 0x19, .n_ch = 8, 253 .mask = FL | FR | LFE | RC | FLC | FRC }, 254 { .ca_id = 0x1a, .n_ch = 8, 255 .mask = FL | FR | RC | FC | FLC | FRC }, 256 { .ca_id = 0x1b, .n_ch = 8, 257 .mask = FL | FR | LFE | RC | FC | FLC | FRC }, 258 { .ca_id = 0x1c, .n_ch = 8, 259 .mask = FL | FR | RL | RR | FLC | FRC }, 260 { .ca_id = 0x1d, .n_ch = 8, 261 .mask = FL | FR | LFE | RL | RR | FLC | FRC }, 262 { .ca_id = 0x1e, .n_ch = 8, 263 .mask = FL | FR | FC | RL | RR | FLC | FRC }, 264 { .ca_id = 0x1f, .n_ch = 8, 265 .mask = FL | FR | LFE | FC | RL | RR | FLC | FRC }, 266 }; 267 268 struct hdmi_codec_priv { 269 struct hdmi_codec_pdata hcd; 270 uint8_t eld[MAX_ELD_BYTES]; 271 struct snd_pcm_chmap *chmap_info; 272 unsigned int chmap_idx; 273 struct mutex lock; 274 bool busy; 275 struct snd_soc_jack *jack; 276 unsigned int jack_status; 277 u8 iec_status[AES_IEC958_STATUS_SIZE]; 278 }; 279 280 static const struct snd_soc_dapm_widget hdmi_widgets[] = { 281 SND_SOC_DAPM_OUTPUT("TX"), 282 SND_SOC_DAPM_OUTPUT("RX"), 283 }; 284 285 enum { 286 DAI_ID_I2S = 0, 287 DAI_ID_SPDIF, 288 }; 289 290 static int hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol, 291 struct snd_ctl_elem_info *uinfo) 292 { 293 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; 294 uinfo->count = sizeof_field(struct hdmi_codec_priv, eld); 295 296 return 0; 297 } 298 299 static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol, 300 struct snd_ctl_elem_value *ucontrol) 301 { 302 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 303 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 304 305 memcpy(ucontrol->value.bytes.data, hcp->eld, sizeof(hcp->eld)); 306 307 return 0; 308 } 309 310 static unsigned long hdmi_codec_spk_mask_from_alloc(int spk_alloc) 311 { 312 int i; 313 static const unsigned long hdmi_codec_eld_spk_alloc_bits[] = { 314 [0] = FL | FR, [1] = LFE, [2] = FC, [3] = RL | RR, 315 [4] = RC, [5] = FLC | FRC, [6] = RLC | RRC, 316 }; 317 unsigned long spk_mask = 0; 318 319 for (i = 0; i < ARRAY_SIZE(hdmi_codec_eld_spk_alloc_bits); i++) { 320 if (spk_alloc & (1 << i)) 321 spk_mask |= hdmi_codec_eld_spk_alloc_bits[i]; 322 } 323 324 return spk_mask; 325 } 326 327 static void hdmi_codec_eld_chmap(struct hdmi_codec_priv *hcp) 328 { 329 u8 spk_alloc; 330 unsigned long spk_mask; 331 332 spk_alloc = drm_eld_get_spk_alloc(hcp->eld); 333 spk_mask = hdmi_codec_spk_mask_from_alloc(spk_alloc); 334 335 /* Detect if only stereo supported, else return 8 channels mappings */ 336 if ((spk_mask & ~(FL | FR)) && hcp->chmap_info->max_channels > 2) 337 hcp->chmap_info->chmap = hdmi_codec_8ch_chmaps; 338 else 339 hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps; 340 } 341 342 static int hdmi_codec_get_ch_alloc_table_idx(struct hdmi_codec_priv *hcp, 343 unsigned char channels) 344 { 345 int i; 346 u8 spk_alloc; 347 unsigned long spk_mask; 348 const struct hdmi_codec_cea_spk_alloc *cap = hdmi_codec_channel_alloc; 349 350 spk_alloc = drm_eld_get_spk_alloc(hcp->eld); 351 spk_mask = hdmi_codec_spk_mask_from_alloc(spk_alloc); 352 353 for (i = 0; i < ARRAY_SIZE(hdmi_codec_channel_alloc); i++, cap++) { 354 /* If spk_alloc == 0, HDMI is unplugged return stereo config*/ 355 if (!spk_alloc && cap->ca_id == 0) 356 return i; 357 if (cap->n_ch != channels) 358 continue; 359 if (!(cap->mask == (spk_mask & cap->mask))) 360 continue; 361 return i; 362 } 363 364 return -EINVAL; 365 } 366 static int hdmi_codec_chmap_ctl_get(struct snd_kcontrol *kcontrol, 367 struct snd_ctl_elem_value *ucontrol) 368 { 369 unsigned const char *map; 370 unsigned int i; 371 struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol); 372 struct hdmi_codec_priv *hcp = info->private_data; 373 374 map = info->chmap[hcp->chmap_idx].map; 375 376 for (i = 0; i < info->max_channels; i++) { 377 if (hcp->chmap_idx == HDMI_CODEC_CHMAP_IDX_UNKNOWN) 378 ucontrol->value.integer.value[i] = 0; 379 else 380 ucontrol->value.integer.value[i] = map[i]; 381 } 382 383 return 0; 384 } 385 386 static int hdmi_codec_iec958_info(struct snd_kcontrol *kcontrol, 387 struct snd_ctl_elem_info *uinfo) 388 { 389 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; 390 uinfo->count = 1; 391 return 0; 392 } 393 394 static int hdmi_codec_iec958_default_get(struct snd_kcontrol *kcontrol, 395 struct snd_ctl_elem_value *ucontrol) 396 { 397 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 398 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 399 400 memcpy(ucontrol->value.iec958.status, hcp->iec_status, 401 sizeof(hcp->iec_status)); 402 403 return 0; 404 } 405 406 static int hdmi_codec_iec958_default_put(struct snd_kcontrol *kcontrol, 407 struct snd_ctl_elem_value *ucontrol) 408 { 409 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 410 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 411 412 memcpy(hcp->iec_status, ucontrol->value.iec958.status, 413 sizeof(hcp->iec_status)); 414 415 return 0; 416 } 417 418 static int hdmi_codec_iec958_mask_get(struct snd_kcontrol *kcontrol, 419 struct snd_ctl_elem_value *ucontrol) 420 { 421 memset(ucontrol->value.iec958.status, 0xff, 422 sizeof_field(struct hdmi_codec_priv, iec_status)); 423 424 return 0; 425 } 426 427 static int hdmi_codec_startup(struct snd_pcm_substream *substream, 428 struct snd_soc_dai *dai) 429 { 430 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 431 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; 432 bool has_capture = !hcp->hcd.no_i2s_capture; 433 bool has_playback = !hcp->hcd.no_i2s_playback; 434 int ret = 0; 435 436 if (!((has_playback && tx) || (has_capture && !tx))) 437 return 0; 438 439 mutex_lock(&hcp->lock); 440 if (hcp->busy) { 441 dev_err(dai->dev, "Only one simultaneous stream supported!\n"); 442 mutex_unlock(&hcp->lock); 443 return -EINVAL; 444 } 445 446 if (hcp->hcd.ops->audio_startup) { 447 ret = hcp->hcd.ops->audio_startup(dai->dev->parent, hcp->hcd.data); 448 if (ret) 449 goto err; 450 } 451 452 if (tx && hcp->hcd.ops->get_eld) { 453 ret = hcp->hcd.ops->get_eld(dai->dev->parent, hcp->hcd.data, 454 hcp->eld, sizeof(hcp->eld)); 455 if (ret) 456 goto err; 457 458 ret = snd_pcm_hw_constraint_eld(substream->runtime, hcp->eld); 459 if (ret) 460 goto err; 461 462 /* Select chmap supported */ 463 hdmi_codec_eld_chmap(hcp); 464 } 465 466 hcp->busy = true; 467 468 err: 469 mutex_unlock(&hcp->lock); 470 return ret; 471 } 472 473 static void hdmi_codec_shutdown(struct snd_pcm_substream *substream, 474 struct snd_soc_dai *dai) 475 { 476 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 477 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; 478 bool has_capture = !hcp->hcd.no_i2s_capture; 479 bool has_playback = !hcp->hcd.no_i2s_playback; 480 481 if (!((has_playback && tx) || (has_capture && !tx))) 482 return; 483 484 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 485 hcp->hcd.ops->audio_shutdown(dai->dev->parent, hcp->hcd.data); 486 487 mutex_lock(&hcp->lock); 488 hcp->busy = false; 489 mutex_unlock(&hcp->lock); 490 } 491 492 static int hdmi_codec_fill_codec_params(struct snd_soc_dai *dai, 493 unsigned int sample_width, 494 unsigned int sample_rate, 495 unsigned int channels, 496 struct hdmi_codec_params *hp) 497 { 498 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 499 int idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 500 u8 ca_id = 0; 501 bool pcm_audio = !(hcp->iec_status[0] & IEC958_AES0_NONAUDIO); 502 503 if (pcm_audio) { 504 /* Select a channel allocation that matches with ELD and pcm channels */ 505 idx = hdmi_codec_get_ch_alloc_table_idx(hcp, channels); 506 507 if (idx < 0) { 508 dev_err(dai->dev, "Not able to map channels to speakers (%d)\n", 509 idx); 510 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 511 return idx; 512 } 513 514 ca_id = hdmi_codec_channel_alloc[idx].ca_id; 515 } 516 517 memset(hp, 0, sizeof(*hp)); 518 519 hdmi_audio_infoframe_init(&hp->cea); 520 521 if (pcm_audio) 522 hp->cea.channels = channels; 523 else 524 hp->cea.channels = 0; 525 526 hp->cea.coding_type = HDMI_AUDIO_CODING_TYPE_STREAM; 527 hp->cea.sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM; 528 hp->cea.sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM; 529 hp->cea.channel_allocation = ca_id; 530 531 hp->sample_width = sample_width; 532 hp->sample_rate = sample_rate; 533 hp->channels = channels; 534 535 if (pcm_audio) 536 hcp->chmap_idx = ca_id; 537 else 538 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 539 540 return 0; 541 } 542 543 static int hdmi_codec_hw_params(struct snd_pcm_substream *substream, 544 struct snd_pcm_hw_params *params, 545 struct snd_soc_dai *dai) 546 { 547 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 548 struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai); 549 struct hdmi_codec_params hp = { 550 .iec = { 551 .status = { 0 }, 552 .subcode = { 0 }, 553 .pad = 0, 554 .dig_subframe = { 0 }, 555 } 556 }; 557 int ret; 558 559 if (!hcp->hcd.ops->hw_params) 560 return 0; 561 562 dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__, 563 params_width(params), params_rate(params), 564 params_channels(params)); 565 566 ret = hdmi_codec_fill_codec_params(dai, 567 params_width(params), 568 params_rate(params), 569 params_channels(params), 570 &hp); 571 if (ret < 0) 572 return ret; 573 574 memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status)); 575 ret = snd_pcm_fill_iec958_consumer_hw_params(params, hp.iec.status, 576 sizeof(hp.iec.status)); 577 if (ret < 0) { 578 dev_err(dai->dev, "Creating IEC958 channel status failed %d\n", 579 ret); 580 return ret; 581 } 582 583 cf->bit_fmt = params_format(params); 584 return hcp->hcd.ops->hw_params(dai->dev->parent, hcp->hcd.data, 585 cf, &hp); 586 } 587 588 static int hdmi_codec_prepare(struct snd_pcm_substream *substream, 589 struct snd_soc_dai *dai) 590 { 591 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 592 struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai); 593 struct snd_pcm_runtime *runtime = substream->runtime; 594 unsigned int channels = runtime->channels; 595 unsigned int width = snd_pcm_format_width(runtime->format); 596 unsigned int rate = runtime->rate; 597 struct hdmi_codec_params hp; 598 int ret; 599 600 if (!hcp->hcd.ops->prepare) 601 return 0; 602 603 dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__, 604 width, rate, channels); 605 606 ret = hdmi_codec_fill_codec_params(dai, width, rate, channels, &hp); 607 if (ret < 0) 608 return ret; 609 610 memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status)); 611 ret = snd_pcm_fill_iec958_consumer(runtime, hp.iec.status, 612 sizeof(hp.iec.status)); 613 if (ret < 0) { 614 dev_err(dai->dev, "Creating IEC958 channel status failed %d\n", 615 ret); 616 return ret; 617 } 618 619 cf->bit_fmt = runtime->format; 620 return hcp->hcd.ops->prepare(dai->dev->parent, hcp->hcd.data, 621 cf, &hp); 622 } 623 624 static int hdmi_codec_i2s_set_fmt(struct snd_soc_dai *dai, 625 unsigned int fmt) 626 { 627 struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai); 628 629 /* Reset daifmt */ 630 memset(cf, 0, sizeof(*cf)); 631 632 switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { 633 case SND_SOC_DAIFMT_CBP_CFP: 634 cf->bit_clk_provider = 1; 635 cf->frame_clk_provider = 1; 636 break; 637 case SND_SOC_DAIFMT_CBC_CFP: 638 cf->frame_clk_provider = 1; 639 break; 640 case SND_SOC_DAIFMT_CBP_CFC: 641 cf->bit_clk_provider = 1; 642 break; 643 case SND_SOC_DAIFMT_CBC_CFC: 644 break; 645 default: 646 return -EINVAL; 647 } 648 649 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 650 case SND_SOC_DAIFMT_NB_NF: 651 break; 652 case SND_SOC_DAIFMT_NB_IF: 653 cf->frame_clk_inv = 1; 654 break; 655 case SND_SOC_DAIFMT_IB_NF: 656 cf->bit_clk_inv = 1; 657 break; 658 case SND_SOC_DAIFMT_IB_IF: 659 cf->frame_clk_inv = 1; 660 cf->bit_clk_inv = 1; 661 break; 662 } 663 664 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 665 case SND_SOC_DAIFMT_I2S: 666 cf->fmt = HDMI_I2S; 667 break; 668 case SND_SOC_DAIFMT_DSP_A: 669 cf->fmt = HDMI_DSP_A; 670 break; 671 case SND_SOC_DAIFMT_DSP_B: 672 cf->fmt = HDMI_DSP_B; 673 break; 674 case SND_SOC_DAIFMT_RIGHT_J: 675 cf->fmt = HDMI_RIGHT_J; 676 break; 677 case SND_SOC_DAIFMT_LEFT_J: 678 cf->fmt = HDMI_LEFT_J; 679 break; 680 case SND_SOC_DAIFMT_AC97: 681 cf->fmt = HDMI_AC97; 682 break; 683 default: 684 dev_err(dai->dev, "Invalid DAI interface format\n"); 685 return -EINVAL; 686 } 687 688 return 0; 689 } 690 691 static int hdmi_codec_mute(struct snd_soc_dai *dai, int mute, int direction) 692 { 693 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 694 695 /* 696 * ignore if direction was CAPTURE 697 * and it had .no_capture_mute flag 698 * see 699 * snd_soc_dai_digital_mute() 700 */ 701 if (hcp->hcd.ops->mute_stream && 702 (direction == SNDRV_PCM_STREAM_PLAYBACK || 703 !hcp->hcd.ops->no_capture_mute)) 704 return hcp->hcd.ops->mute_stream(dai->dev->parent, 705 hcp->hcd.data, 706 mute, direction); 707 708 return -ENOTSUPP; 709 } 710 711 /* 712 * This driver can select all SND_SOC_DAIFMT_CBx_CFx, 713 * but need to be selected from Sound Card, not be auto selected. 714 * Because it might be used from other driver. 715 * For example, 716 * ${LINUX}/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c 717 */ 718 static const u64 hdmi_codec_formats = 719 SND_SOC_POSSIBLE_DAIFMT_NB_NF | 720 SND_SOC_POSSIBLE_DAIFMT_NB_IF | 721 SND_SOC_POSSIBLE_DAIFMT_IB_NF | 722 SND_SOC_POSSIBLE_DAIFMT_IB_IF | 723 SND_SOC_POSSIBLE_DAIFMT_I2S | 724 SND_SOC_POSSIBLE_DAIFMT_DSP_A | 725 SND_SOC_POSSIBLE_DAIFMT_DSP_B | 726 SND_SOC_POSSIBLE_DAIFMT_RIGHT_J | 727 SND_SOC_POSSIBLE_DAIFMT_LEFT_J | 728 SND_SOC_POSSIBLE_DAIFMT_AC97; 729 730 #define HDMI_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ 731 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\ 732 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\ 733 SNDRV_PCM_RATE_192000) 734 735 #define SPDIF_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 736 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE) 737 738 /* 739 * This list is only for formats allowed on the I2S bus. So there is 740 * some formats listed that are not supported by HDMI interface. For 741 * instance allowing the 32-bit formats enables 24-precision with CPU 742 * DAIs that do not support 24-bit formats. If the extra formats cause 743 * problems, we should add the video side driver an option to disable 744 * them. 745 */ 746 #define I2S_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 747 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE |\ 748 SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE) 749 750 static struct snd_kcontrol_new hdmi_codec_controls[] = { 751 { 752 .access = SNDRV_CTL_ELEM_ACCESS_READ, 753 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 754 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK), 755 .info = hdmi_codec_iec958_info, 756 .get = hdmi_codec_iec958_mask_get, 757 }, 758 { 759 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 760 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT), 761 .info = hdmi_codec_iec958_info, 762 .get = hdmi_codec_iec958_default_get, 763 .put = hdmi_codec_iec958_default_put, 764 }, 765 { 766 .access = (SNDRV_CTL_ELEM_ACCESS_READ | 767 SNDRV_CTL_ELEM_ACCESS_VOLATILE), 768 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 769 .name = "ELD", 770 .info = hdmi_eld_ctl_info, 771 .get = hdmi_eld_ctl_get, 772 }, 773 }; 774 775 static int hdmi_codec_pcm_new(struct snd_soc_pcm_runtime *rtd, 776 struct snd_soc_dai *dai) 777 { 778 struct snd_soc_dai_driver *drv = dai->driver; 779 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 780 unsigned int i; 781 int ret; 782 783 ret = snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK, 784 NULL, drv->playback.channels_max, 0, 785 &hcp->chmap_info); 786 if (ret < 0) 787 return ret; 788 789 /* override handlers */ 790 hcp->chmap_info->private_data = hcp; 791 hcp->chmap_info->kctl->get = hdmi_codec_chmap_ctl_get; 792 793 /* default chmap supported is stereo */ 794 hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps; 795 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 796 797 for (i = 0; i < ARRAY_SIZE(hdmi_codec_controls); i++) { 798 struct snd_kcontrol *kctl; 799 800 /* add ELD ctl with the device number corresponding to the PCM stream */ 801 kctl = snd_ctl_new1(&hdmi_codec_controls[i], dai->component); 802 if (!kctl) 803 return -ENOMEM; 804 805 kctl->id.device = rtd->pcm->device; 806 ret = snd_ctl_add(rtd->card->snd_card, kctl); 807 if (ret < 0) 808 return ret; 809 } 810 811 return 0; 812 } 813 814 static int hdmi_dai_probe(struct snd_soc_dai *dai) 815 { 816 struct snd_soc_dapm_context *dapm; 817 struct hdmi_codec_daifmt *daifmt; 818 struct snd_soc_dapm_route route[] = { 819 { 820 .sink = "TX", 821 .source = dai->driver->playback.stream_name, 822 }, 823 { 824 .sink = dai->driver->capture.stream_name, 825 .source = "RX", 826 }, 827 }; 828 int ret, i; 829 830 dapm = snd_soc_component_get_dapm(dai->component); 831 832 /* One of the directions might be omitted for unidirectional DAIs */ 833 for (i = 0; i < ARRAY_SIZE(route); i++) { 834 if (!route[i].source || !route[i].sink) 835 continue; 836 837 ret = snd_soc_dapm_add_routes(dapm, &route[i], 1); 838 if (ret) 839 return ret; 840 } 841 842 daifmt = devm_kzalloc(dai->dev, sizeof(*daifmt), GFP_KERNEL); 843 if (!daifmt) 844 return -ENOMEM; 845 846 snd_soc_dai_dma_data_set_playback(dai, daifmt); 847 848 return 0; 849 } 850 851 static void hdmi_codec_jack_report(struct hdmi_codec_priv *hcp, 852 unsigned int jack_status) 853 { 854 if (jack_status != hcp->jack_status) { 855 if (hcp->jack) 856 snd_soc_jack_report(hcp->jack, jack_status, SND_JACK_LINEOUT); 857 hcp->jack_status = jack_status; 858 } 859 } 860 861 static void plugged_cb(struct device *dev, bool plugged) 862 { 863 struct hdmi_codec_priv *hcp = dev_get_drvdata(dev); 864 865 if (plugged) { 866 if (hcp->hcd.ops->get_eld) { 867 hcp->hcd.ops->get_eld(dev->parent, hcp->hcd.data, 868 hcp->eld, sizeof(hcp->eld)); 869 } 870 hdmi_codec_jack_report(hcp, SND_JACK_LINEOUT); 871 } else { 872 hdmi_codec_jack_report(hcp, 0); 873 memset(hcp->eld, 0, sizeof(hcp->eld)); 874 } 875 } 876 877 static int hdmi_codec_set_jack(struct snd_soc_component *component, 878 struct snd_soc_jack *jack, 879 void *data) 880 { 881 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 882 883 if (hcp->hcd.ops->hook_plugged_cb) { 884 hcp->jack = jack; 885 886 /* 887 * Report the initial jack status which may have been provided 888 * by the parent hdmi driver while the hpd hook was registered. 889 */ 890 snd_soc_jack_report(jack, hcp->jack_status, SND_JACK_LINEOUT); 891 892 return 0; 893 } 894 895 return -ENOTSUPP; 896 } 897 898 static int hdmi_dai_spdif_probe(struct snd_soc_dai *dai) 899 { 900 struct hdmi_codec_daifmt *cf; 901 int ret; 902 903 ret = hdmi_dai_probe(dai); 904 if (ret) 905 return ret; 906 907 cf = snd_soc_dai_dma_data_get_playback(dai); 908 cf->fmt = HDMI_SPDIF; 909 910 return 0; 911 } 912 913 static const struct snd_soc_dai_ops hdmi_codec_i2s_dai_ops = { 914 .probe = hdmi_dai_probe, 915 .startup = hdmi_codec_startup, 916 .shutdown = hdmi_codec_shutdown, 917 .hw_params = hdmi_codec_hw_params, 918 .prepare = hdmi_codec_prepare, 919 .set_fmt = hdmi_codec_i2s_set_fmt, 920 .mute_stream = hdmi_codec_mute, 921 .pcm_new = hdmi_codec_pcm_new, 922 .auto_selectable_formats = &hdmi_codec_formats, 923 .num_auto_selectable_formats = 1, 924 }; 925 926 static const struct snd_soc_dai_ops hdmi_codec_spdif_dai_ops = { 927 .probe = hdmi_dai_spdif_probe, 928 .startup = hdmi_codec_startup, 929 .shutdown = hdmi_codec_shutdown, 930 .hw_params = hdmi_codec_hw_params, 931 .mute_stream = hdmi_codec_mute, 932 .pcm_new = hdmi_codec_pcm_new, 933 }; 934 935 static const struct snd_soc_dai_driver hdmi_i2s_dai = { 936 .name = "i2s-hifi", 937 .id = DAI_ID_I2S, 938 .playback = { 939 .stream_name = "I2S Playback", 940 .channels_min = 2, 941 .channels_max = 8, 942 .rates = HDMI_RATES, 943 .formats = I2S_FORMATS, 944 .sig_bits = 24, 945 }, 946 .capture = { 947 .stream_name = "Capture", 948 .channels_min = 2, 949 .channels_max = 8, 950 .rates = HDMI_RATES, 951 .formats = I2S_FORMATS, 952 .sig_bits = 24, 953 }, 954 .ops = &hdmi_codec_i2s_dai_ops, 955 }; 956 957 static const struct snd_soc_dai_driver hdmi_spdif_dai = { 958 .name = "spdif-hifi", 959 .id = DAI_ID_SPDIF, 960 .playback = { 961 .stream_name = "SPDIF Playback", 962 .channels_min = 2, 963 .channels_max = 2, 964 .rates = HDMI_RATES, 965 .formats = SPDIF_FORMATS, 966 }, 967 .capture = { 968 .stream_name = "Capture", 969 .channels_min = 2, 970 .channels_max = 2, 971 .rates = HDMI_RATES, 972 .formats = SPDIF_FORMATS, 973 }, 974 .ops = &hdmi_codec_spdif_dai_ops, 975 }; 976 977 static int hdmi_of_xlate_dai_id(struct snd_soc_component *component, 978 struct device_node *endpoint) 979 { 980 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 981 int ret = -ENOTSUPP; /* see snd_soc_get_dai_id() */ 982 983 if (hcp->hcd.ops->get_dai_id) 984 ret = hcp->hcd.ops->get_dai_id(component, endpoint); 985 986 return ret; 987 } 988 989 static int hdmi_probe(struct snd_soc_component *component) 990 { 991 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 992 int ret = 0; 993 994 if (hcp->hcd.ops->hook_plugged_cb) { 995 ret = hcp->hcd.ops->hook_plugged_cb(component->dev->parent, 996 hcp->hcd.data, 997 plugged_cb, 998 component->dev); 999 } 1000 1001 return ret; 1002 } 1003 1004 static void hdmi_remove(struct snd_soc_component *component) 1005 { 1006 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 1007 1008 if (hcp->hcd.ops->hook_plugged_cb) 1009 hcp->hcd.ops->hook_plugged_cb(component->dev->parent, 1010 hcp->hcd.data, NULL, NULL); 1011 } 1012 1013 static const struct snd_soc_component_driver hdmi_driver = { 1014 .probe = hdmi_probe, 1015 .remove = hdmi_remove, 1016 .dapm_widgets = hdmi_widgets, 1017 .num_dapm_widgets = ARRAY_SIZE(hdmi_widgets), 1018 .of_xlate_dai_id = hdmi_of_xlate_dai_id, 1019 .idle_bias_on = 1, 1020 .use_pmdown_time = 1, 1021 .endianness = 1, 1022 .set_jack = hdmi_codec_set_jack, 1023 }; 1024 1025 static int hdmi_codec_probe(struct platform_device *pdev) 1026 { 1027 struct hdmi_codec_pdata *hcd = pdev->dev.platform_data; 1028 struct snd_soc_dai_driver *daidrv; 1029 struct device *dev = &pdev->dev; 1030 struct hdmi_codec_priv *hcp; 1031 int dai_count, i = 0; 1032 int ret; 1033 1034 if (!hcd) { 1035 dev_err(dev, "%s: No platform data\n", __func__); 1036 return -EINVAL; 1037 } 1038 1039 dai_count = hcd->i2s + hcd->spdif; 1040 if (dai_count < 1 || !hcd->ops || 1041 (!hcd->ops->hw_params && !hcd->ops->prepare) || 1042 !hcd->ops->audio_shutdown) { 1043 dev_err(dev, "%s: Invalid parameters\n", __func__); 1044 return -EINVAL; 1045 } 1046 1047 hcp = devm_kzalloc(dev, sizeof(*hcp), GFP_KERNEL); 1048 if (!hcp) 1049 return -ENOMEM; 1050 1051 hcp->hcd = *hcd; 1052 mutex_init(&hcp->lock); 1053 1054 ret = snd_pcm_create_iec958_consumer_default(hcp->iec_status, 1055 sizeof(hcp->iec_status)); 1056 if (ret < 0) 1057 return ret; 1058 1059 daidrv = devm_kcalloc(dev, dai_count, sizeof(*daidrv), GFP_KERNEL); 1060 if (!daidrv) 1061 return -ENOMEM; 1062 1063 if (hcd->i2s) { 1064 daidrv[i] = hdmi_i2s_dai; 1065 daidrv[i].playback.channels_max = hcd->max_i2s_channels; 1066 if (hcd->no_i2s_playback) 1067 memset(&daidrv[i].playback, 0, 1068 sizeof(daidrv[i].playback)); 1069 if (hcd->no_i2s_capture) 1070 memset(&daidrv[i].capture, 0, 1071 sizeof(daidrv[i].capture)); 1072 i++; 1073 } 1074 1075 if (hcd->spdif) { 1076 daidrv[i] = hdmi_spdif_dai; 1077 if (hcd->no_spdif_playback) 1078 memset(&daidrv[i].playback, 0, 1079 sizeof(daidrv[i].playback)); 1080 if (hcd->no_spdif_capture) 1081 memset(&daidrv[i].capture, 0, 1082 sizeof(daidrv[i].capture)); 1083 } 1084 1085 dev_set_drvdata(dev, hcp); 1086 1087 ret = devm_snd_soc_register_component(dev, &hdmi_driver, daidrv, 1088 dai_count); 1089 if (ret) { 1090 dev_err(dev, "%s: snd_soc_register_component() failed (%d)\n", 1091 __func__, ret); 1092 return ret; 1093 } 1094 return 0; 1095 } 1096 1097 static struct platform_driver hdmi_codec_driver = { 1098 .driver = { 1099 .name = HDMI_CODEC_DRV_NAME, 1100 }, 1101 .probe = hdmi_codec_probe, 1102 }; 1103 1104 module_platform_driver(hdmi_codec_driver); 1105 1106 MODULE_AUTHOR("Jyri Sarha <jsarha@ti.com>"); 1107 MODULE_DESCRIPTION("HDMI Audio Codec Driver"); 1108 MODULE_LICENSE("GPL"); 1109 MODULE_ALIAS("platform:" HDMI_CODEC_DRV_NAME); 1110