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hdmi-codec.c
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linux-6.19.14/sound/soc/codecs/hdmi-codec.c
1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * ALSA SoC codec for HDMI encoder drivers 4 * Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com/ 5 * Author: Jyri Sarha <jsarha@ti.com> 6 */ 7#include <linux/module.h> 8#include <linux/string.h> 9#include <sound/core.h> 10#include <sound/jack.h> 11#include <sound/pcm.h> 12#include <sound/pcm_params.h> 13#include <sound/soc.h> 14#include <sound/tlv.h> 15#include <sound/pcm_drm_eld.h> 16#include <sound/hdmi-codec.h> 17#include <sound/pcm_iec958.h> 18 19#include <drm/drm_crtc.h> /* This is only to get MAX_ELD_BYTES */ 20#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 */ 35enum 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 */ 52struct 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 */ 59static 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 */ 66static 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 where ca_id must exist in hdmi_codec_8ch_chmaps 189 * The preceding ones have better chances to be selected by 190 * hdmi_codec_get_ch_alloc_table_idx(). 191 */ 192static const struct hdmi_codec_cea_spk_alloc hdmi_codec_channel_alloc[] = { 193 { .ca_id = 0x00, .n_ch = 2, 194 .mask = FL | FR }, 195 { .ca_id = 0x03, .n_ch = 4, 196 .mask = FL | FR | LFE | FC }, 197 { .ca_id = 0x02, .n_ch = 4, 198 .mask = FL | FR | FC }, 199 { .ca_id = 0x01, .n_ch = 4, 200 .mask = FL | FR | LFE }, 201 { .ca_id = 0x0b, .n_ch = 6, 202 .mask = FL | FR | LFE | FC | RL | RR }, 203 { .ca_id = 0x0a, .n_ch = 6, 204 .mask = FL | FR | FC | RL | RR }, 205 { .ca_id = 0x09, .n_ch = 6, 206 .mask = FL | FR | LFE | RL | RR }, 207 { .ca_id = 0x08, .n_ch = 6, 208 .mask = FL | FR | RL | RR }, 209 { .ca_id = 0x07, .n_ch = 6, 210 .mask = FL | FR | LFE | FC | RC }, 211 { .ca_id = 0x06, .n_ch = 6, 212 .mask = FL | FR | FC | RC }, 213 { .ca_id = 0x05, .n_ch = 6, 214 .mask = FL | FR | LFE | RC }, 215 { .ca_id = 0x04, .n_ch = 6, 216 .mask = FL | FR | RC }, 217 { .ca_id = 0x13, .n_ch = 8, 218 .mask = FL | FR | LFE | FC | RL | RR | RLC | RRC }, 219 { .ca_id = 0x1f, .n_ch = 8, 220 .mask = FL | FR | LFE | FC | RL | RR | FLC | FRC }, 221 { .ca_id = 0x12, .n_ch = 8, 222 .mask = FL | FR | FC | RL | RR | RLC | RRC }, 223 { .ca_id = 0x1e, .n_ch = 8, 224 .mask = FL | FR | FC | RL | RR | FLC | FRC }, 225 { .ca_id = 0x11, .n_ch = 8, 226 .mask = FL | FR | LFE | RL | RR | RLC | RRC }, 227 { .ca_id = 0x1d, .n_ch = 8, 228 .mask = FL | FR | LFE | RL | RR | FLC | FRC }, 229 { .ca_id = 0x10, .n_ch = 8, 230 .mask = FL | FR | RL | RR | RLC | RRC }, 231 { .ca_id = 0x1c, .n_ch = 8, 232 .mask = FL | FR | RL | RR | FLC | FRC }, 233 { .ca_id = 0x0f, .n_ch = 8, 234 .mask = FL | FR | LFE | FC | RL | RR | RC }, 235 { .ca_id = 0x1b, .n_ch = 8, 236 .mask = FL | FR | LFE | RC | FC | FLC | FRC }, 237 { .ca_id = 0x0e, .n_ch = 8, 238 .mask = FL | FR | FC | RL | RR | RC }, 239 { .ca_id = 0x1a, .n_ch = 8, 240 .mask = FL | FR | RC | FC | FLC | FRC }, 241 { .ca_id = 0x0d, .n_ch = 8, 242 .mask = FL | FR | LFE | RL | RR | RC }, 243 { .ca_id = 0x19, .n_ch = 8, 244 .mask = FL | FR | LFE | RC | FLC | FRC }, 245 { .ca_id = 0x0c, .n_ch = 8, 246 .mask = FL | FR | RC | RL | RR }, 247 { .ca_id = 0x18, .n_ch = 8, 248 .mask = FL | FR | RC | FLC | FRC }, 249 { .ca_id = 0x17, .n_ch = 8, 250 .mask = FL | FR | LFE | FC | FLC | FRC }, 251 { .ca_id = 0x16, .n_ch = 8, 252 .mask = FL | FR | FC | FLC | FRC }, 253 { .ca_id = 0x15, .n_ch = 8, 254 .mask = FL | FR | LFE | FLC | FRC }, 255 { .ca_id = 0x14, .n_ch = 8, 256 .mask = FL | FR | FLC | FRC }, 257 { .ca_id = 0x0b, .n_ch = 8, 258 .mask = FL | FR | LFE | FC | RL | RR }, 259 { .ca_id = 0x0a, .n_ch = 8, 260 .mask = FL | FR | FC | RL | RR }, 261 { .ca_id = 0x09, .n_ch = 8, 262 .mask = FL | FR | LFE | RL | RR }, 263 { .ca_id = 0x08, .n_ch = 8, 264 .mask = FL | FR | RL | RR }, 265 { .ca_id = 0x07, .n_ch = 8, 266 .mask = FL | FR | LFE | FC | RC }, 267 { .ca_id = 0x06, .n_ch = 8, 268 .mask = FL | FR | FC | RC }, 269 { .ca_id = 0x05, .n_ch = 8, 270 .mask = FL | FR | LFE | RC }, 271 { .ca_id = 0x04, .n_ch = 8, 272 .mask = FL | FR | RC }, 273 { .ca_id = 0x03, .n_ch = 8, 274 .mask = FL | FR | LFE | FC }, 275 { .ca_id = 0x02, .n_ch = 8, 276 .mask = FL | FR | FC }, 277 { .ca_id = 0x01, .n_ch = 8, 278 .mask = FL | FR | LFE }, 279}; 280 281struct hdmi_codec_priv { 282 struct hdmi_codec_pdata hcd; 283 uint8_t eld[MAX_ELD_BYTES]; 284 struct snd_parsed_hdmi_eld eld_parsed; 285 struct snd_pcm_chmap *chmap_info; 286 unsigned int chmap_idx; 287 struct mutex lock; 288 bool busy; 289 struct snd_soc_jack *jack; 290 unsigned int jack_status; 291 u8 iec_status[AES_IEC958_STATUS_SIZE]; 292 struct snd_info_entry *proc_entry; 293}; 294 295static const struct snd_soc_dapm_widget hdmi_widgets[] = { 296 SND_SOC_DAPM_OUTPUT("TX"), 297 SND_SOC_DAPM_OUTPUT("RX"), 298}; 299 300enum { 301 DAI_ID_I2S = 0, 302 DAI_ID_SPDIF, 303}; 304 305static int hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol, 306 struct snd_ctl_elem_info *uinfo) 307{ 308 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; 309 uinfo->count = sizeof_field(struct hdmi_codec_priv, eld); 310 311 return 0; 312} 313 314static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol, 315 struct snd_ctl_elem_value *ucontrol) 316{ 317 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 318 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 319 320 memcpy(ucontrol->value.bytes.data, hcp->eld, sizeof(hcp->eld)); 321 322 return 0; 323} 324 325static unsigned long hdmi_codec_spk_mask_from_alloc(int spk_alloc) 326{ 327 int i; 328 static const unsigned long hdmi_codec_eld_spk_alloc_bits[] = { 329 [0] = FL | FR, [1] = LFE, [2] = FC, [3] = RL | RR, 330 [4] = RC, [5] = FLC | FRC, [6] = RLC | RRC, 331 }; 332 unsigned long spk_mask = 0; 333 334 for (i = 0; i < ARRAY_SIZE(hdmi_codec_eld_spk_alloc_bits); i++) { 335 if (spk_alloc & (1 << i)) 336 spk_mask |= hdmi_codec_eld_spk_alloc_bits[i]; 337 } 338 339 return spk_mask; 340} 341 342static void hdmi_codec_eld_chmap(struct hdmi_codec_priv *hcp) 343{ 344 u8 spk_alloc; 345 unsigned long spk_mask; 346 347 spk_alloc = drm_eld_get_spk_alloc(hcp->eld); 348 spk_mask = hdmi_codec_spk_mask_from_alloc(spk_alloc); 349 350 /* Detect if only stereo supported, else return 8 channels mappings */ 351 if ((spk_mask & ~(FL | FR)) && hcp->chmap_info->max_channels > 2) 352 hcp->chmap_info->chmap = hdmi_codec_8ch_chmaps; 353 else 354 hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps; 355} 356 357static int hdmi_codec_get_ch_alloc_table_idx(struct hdmi_codec_priv *hcp, 358 unsigned char channels) 359{ 360 int i; 361 u8 spk_alloc; 362 unsigned long spk_mask; 363 const struct hdmi_codec_cea_spk_alloc *cap = hdmi_codec_channel_alloc; 364 365 spk_alloc = drm_eld_get_spk_alloc(hcp->eld); 366 spk_mask = hdmi_codec_spk_mask_from_alloc(spk_alloc); 367 368 for (i = 0; i < ARRAY_SIZE(hdmi_codec_channel_alloc); i++, cap++) { 369 /* If spk_alloc == 0, HDMI is unplugged return stereo config*/ 370 if (!spk_alloc && cap->ca_id == 0) 371 return i; 372 if (cap->n_ch != channels) 373 continue; 374 if (!(cap->mask == (spk_mask & cap->mask))) 375 continue; 376 return i; 377 } 378 379 return -EINVAL; 380} 381static int hdmi_codec_chmap_ctl_get(struct snd_kcontrol *kcontrol, 382 struct snd_ctl_elem_value *ucontrol) 383{ 384 unsigned const char *map; 385 unsigned int i; 386 struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol); 387 struct hdmi_codec_priv *hcp = info->private_data; 388 389 if (hcp->chmap_idx != HDMI_CODEC_CHMAP_IDX_UNKNOWN) 390 map = info->chmap[hcp->chmap_idx].map; 391 392 for (i = 0; i < info->max_channels; i++) { 393 if (hcp->chmap_idx == HDMI_CODEC_CHMAP_IDX_UNKNOWN) 394 ucontrol->value.integer.value[i] = 0; 395 else 396 ucontrol->value.integer.value[i] = map[i]; 397 } 398 399 return 0; 400} 401 402static int hdmi_codec_iec958_info(struct snd_kcontrol *kcontrol, 403 struct snd_ctl_elem_info *uinfo) 404{ 405 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; 406 uinfo->count = 1; 407 return 0; 408} 409 410static int hdmi_codec_iec958_default_get(struct snd_kcontrol *kcontrol, 411 struct snd_ctl_elem_value *ucontrol) 412{ 413 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 414 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 415 416 memcpy(ucontrol->value.iec958.status, hcp->iec_status, 417 sizeof(hcp->iec_status)); 418 419 return 0; 420} 421 422static int hdmi_codec_iec958_default_put(struct snd_kcontrol *kcontrol, 423 struct snd_ctl_elem_value *ucontrol) 424{ 425 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 426 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 427 428 memcpy(hcp->iec_status, ucontrol->value.iec958.status, 429 sizeof(hcp->iec_status)); 430 431 return 0; 432} 433 434static int hdmi_codec_iec958_mask_get(struct snd_kcontrol *kcontrol, 435 struct snd_ctl_elem_value *ucontrol) 436{ 437 memset(ucontrol->value.iec958.status, 0xff, 438 sizeof_field(struct hdmi_codec_priv, iec_status)); 439 440 return 0; 441} 442 443static int hdmi_codec_startup(struct snd_pcm_substream *substream, 444 struct snd_soc_dai *dai) 445{ 446 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 447 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; 448 bool has_capture = !hcp->hcd.no_i2s_capture; 449 bool has_playback = !hcp->hcd.no_i2s_playback; 450 int ret = 0; 451 452 if (!((has_playback && tx) || (has_capture && !tx))) 453 return 0; 454 455 mutex_lock(&hcp->lock); 456 if (hcp->busy) { 457 dev_err(dai->dev, "Only one simultaneous stream supported!\n"); 458 mutex_unlock(&hcp->lock); 459 return -EINVAL; 460 } 461 462 if (hcp->hcd.ops->audio_startup) { 463 ret = hcp->hcd.ops->audio_startup(dai->dev->parent, hcp->hcd.data); 464 if (ret) 465 goto err; 466 } 467 468 if (tx && hcp->hcd.ops->get_eld) { 469 ret = hcp->hcd.ops->get_eld(dai->dev->parent, hcp->hcd.data, 470 hcp->eld, sizeof(hcp->eld)); 471 if (ret) 472 goto err; 473 474 snd_parse_eld(dai->dev, &hcp->eld_parsed, 475 hcp->eld, sizeof(hcp->eld)); 476 477 ret = snd_pcm_hw_constraint_eld(substream->runtime, hcp->eld); 478 if (ret) 479 goto err; 480 481 /* Select chmap supported */ 482 hdmi_codec_eld_chmap(hcp); 483 } 484 485 hcp->busy = true; 486 487err: 488 mutex_unlock(&hcp->lock); 489 return ret; 490} 491 492static void hdmi_codec_shutdown(struct snd_pcm_substream *substream, 493 struct snd_soc_dai *dai) 494{ 495 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 496 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; 497 bool has_capture = !hcp->hcd.no_i2s_capture; 498 bool has_playback = !hcp->hcd.no_i2s_playback; 499 500 if (!((has_playback && tx) || (has_capture && !tx))) 501 return; 502 503 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 504 hcp->hcd.ops->audio_shutdown(dai->dev->parent, hcp->hcd.data); 505 506 mutex_lock(&hcp->lock); 507 hcp->busy = false; 508 mutex_unlock(&hcp->lock); 509} 510 511static int hdmi_codec_fill_codec_params(struct snd_soc_dai *dai, 512 unsigned int sample_width, 513 unsigned int sample_rate, 514 unsigned int channels, 515 struct hdmi_codec_params *hp) 516{ 517 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 518 int idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 519 u8 ca_id = 0; 520 bool pcm_audio = !(hcp->iec_status[0] & IEC958_AES0_NONAUDIO); 521 522 if (pcm_audio) { 523 /* Select a channel allocation that matches with ELD and pcm channels */ 524 idx = hdmi_codec_get_ch_alloc_table_idx(hcp, channels); 525 526 if (idx < 0) { 527 dev_err(dai->dev, "Not able to map channels to speakers (%d)\n", 528 idx); 529 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 530 return idx; 531 } 532 533 ca_id = hdmi_codec_channel_alloc[idx].ca_id; 534 } 535 536 memset(hp, 0, sizeof(*hp)); 537 538 hdmi_audio_infoframe_init(&hp->cea); 539 540 if (pcm_audio) 541 hp->cea.channels = channels; 542 else 543 hp->cea.channels = 0; 544 545 hp->cea.coding_type = HDMI_AUDIO_CODING_TYPE_STREAM; 546 hp->cea.sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM; 547 hp->cea.sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM; 548 hp->cea.channel_allocation = ca_id; 549 550 hp->sample_width = sample_width; 551 hp->sample_rate = sample_rate; 552 hp->channels = channels; 553 554 if (pcm_audio) 555 hcp->chmap_idx = ca_id; 556 else 557 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 558 559 return 0; 560} 561 562static int hdmi_codec_hw_params(struct snd_pcm_substream *substream, 563 struct snd_pcm_hw_params *params, 564 struct snd_soc_dai *dai) 565{ 566 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 567 struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai); 568 struct hdmi_codec_params hp = { 569 .iec = { 570 .status = { 0 }, 571 .subcode = { 0 }, 572 .pad = 0, 573 .dig_subframe = { 0 }, 574 } 575 }; 576 int ret; 577 578 if (!hcp->hcd.ops->hw_params) 579 return 0; 580 581 dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__, 582 params_width(params), params_rate(params), 583 params_channels(params)); 584 585 ret = hdmi_codec_fill_codec_params(dai, 586 params_width(params), 587 params_rate(params), 588 params_channels(params), 589 &hp); 590 if (ret < 0) 591 return ret; 592 593 memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status)); 594 ret = snd_pcm_fill_iec958_consumer_hw_params(params, hp.iec.status, 595 sizeof(hp.iec.status)); 596 if (ret < 0) { 597 dev_err(dai->dev, "Creating IEC958 channel status failed %d\n", 598 ret); 599 return ret; 600 } 601 602 cf->bit_fmt = params_format(params); 603 return hcp->hcd.ops->hw_params(dai->dev->parent, hcp->hcd.data, 604 cf, &hp); 605} 606 607static int hdmi_codec_prepare(struct snd_pcm_substream *substream, 608 struct snd_soc_dai *dai) 609{ 610 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 611 struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai); 612 struct snd_pcm_runtime *runtime = substream->runtime; 613 unsigned int channels = runtime->channels; 614 unsigned int width = snd_pcm_format_width(runtime->format); 615 unsigned int rate = runtime->rate; 616 struct hdmi_codec_params hp; 617 int ret; 618 619 if (!hcp->hcd.ops->prepare) 620 return 0; 621 622 dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__, 623 width, rate, channels); 624 625 ret = hdmi_codec_fill_codec_params(dai, width, rate, channels, &hp); 626 if (ret < 0) 627 return ret; 628 629 memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status)); 630 ret = snd_pcm_fill_iec958_consumer(runtime, hp.iec.status, 631 sizeof(hp.iec.status)); 632 if (ret < 0) { 633 dev_err(dai->dev, "Creating IEC958 channel status failed %d\n", 634 ret); 635 return ret; 636 } 637 638 cf->bit_fmt = runtime->format; 639 return hcp->hcd.ops->prepare(dai->dev->parent, hcp->hcd.data, 640 cf, &hp); 641} 642 643static int hdmi_codec_i2s_set_fmt(struct snd_soc_dai *dai, 644 unsigned int fmt) 645{ 646 struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai); 647 648 /* Reset daifmt */ 649 memset(cf, 0, sizeof(*cf)); 650 651 switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { 652 case SND_SOC_DAIFMT_CBP_CFP: 653 cf->bit_clk_provider = 1; 654 cf->frame_clk_provider = 1; 655 break; 656 case SND_SOC_DAIFMT_CBC_CFP: 657 cf->frame_clk_provider = 1; 658 break; 659 case SND_SOC_DAIFMT_CBP_CFC: 660 cf->bit_clk_provider = 1; 661 break; 662 case SND_SOC_DAIFMT_CBC_CFC: 663 break; 664 default: 665 return -EINVAL; 666 } 667 668 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 669 case SND_SOC_DAIFMT_NB_NF: 670 break; 671 case SND_SOC_DAIFMT_NB_IF: 672 cf->frame_clk_inv = 1; 673 break; 674 case SND_SOC_DAIFMT_IB_NF: 675 cf->bit_clk_inv = 1; 676 break; 677 case SND_SOC_DAIFMT_IB_IF: 678 cf->frame_clk_inv = 1; 679 cf->bit_clk_inv = 1; 680 break; 681 } 682 683 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 684 case SND_SOC_DAIFMT_I2S: 685 cf->fmt = HDMI_I2S; 686 break; 687 case SND_SOC_DAIFMT_DSP_A: 688 cf->fmt = HDMI_DSP_A; 689 break; 690 case SND_SOC_DAIFMT_DSP_B: 691 cf->fmt = HDMI_DSP_B; 692 break; 693 case SND_SOC_DAIFMT_RIGHT_J: 694 cf->fmt = HDMI_RIGHT_J; 695 break; 696 case SND_SOC_DAIFMT_LEFT_J: 697 cf->fmt = HDMI_LEFT_J; 698 break; 699 case SND_SOC_DAIFMT_AC97: 700 cf->fmt = HDMI_AC97; 701 break; 702 default: 703 dev_err(dai->dev, "Invalid DAI interface format\n"); 704 return -EINVAL; 705 } 706 707 return 0; 708} 709 710static int hdmi_codec_mute(struct snd_soc_dai *dai, int mute, int direction) 711{ 712 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 713 714 /* 715 * ignore if direction was CAPTURE 716 * and it had .no_capture_mute flag 717 * see 718 * snd_soc_dai_digital_mute() 719 */ 720 if (hcp->hcd.ops->mute_stream && 721 (direction == SNDRV_PCM_STREAM_PLAYBACK || 722 !hcp->hcd.no_capture_mute)) 723 return hcp->hcd.ops->mute_stream(dai->dev->parent, 724 hcp->hcd.data, 725 mute, direction); 726 727 return -ENOTSUPP; 728} 729 730/* 731 * This driver can select all SND_SOC_DAIFMT_CBx_CFx, 732 * but need to be selected from Sound Card, not be auto selected. 733 * Because it might be used from other driver. 734 * For example, 735 * ${LINUX}/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c 736 */ 737static const u64 hdmi_codec_formats = 738 SND_SOC_POSSIBLE_DAIFMT_NB_NF | 739 SND_SOC_POSSIBLE_DAIFMT_NB_IF | 740 SND_SOC_POSSIBLE_DAIFMT_IB_NF | 741 SND_SOC_POSSIBLE_DAIFMT_IB_IF | 742 SND_SOC_POSSIBLE_DAIFMT_I2S | 743 SND_SOC_POSSIBLE_DAIFMT_DSP_A | 744 SND_SOC_POSSIBLE_DAIFMT_DSP_B | 745 SND_SOC_POSSIBLE_DAIFMT_RIGHT_J | 746 SND_SOC_POSSIBLE_DAIFMT_LEFT_J | 747 SND_SOC_POSSIBLE_DAIFMT_AC97; 748 749#define HDMI_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ 750 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\ 751 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\ 752 SNDRV_PCM_RATE_192000) 753 754#define SPDIF_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 755 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE) 756 757/* 758 * This list is only for formats allowed on the I2S bus. So there is 759 * some formats listed that are not supported by HDMI interface. For 760 * instance allowing the 32-bit formats enables 24-precision with CPU 761 * DAIs that do not support 24-bit formats. If the extra formats cause 762 * problems, we should add the video side driver an option to disable 763 * them. 764 */ 765#define I2S_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 766 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE |\ 767 SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE) 768 769static struct snd_kcontrol_new hdmi_codec_controls[] = { 770 { 771 .access = SNDRV_CTL_ELEM_ACCESS_READ, 772 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 773 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK), 774 .info = hdmi_codec_iec958_info, 775 .get = hdmi_codec_iec958_mask_get, 776 }, 777 { 778 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 779 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT), 780 .info = hdmi_codec_iec958_info, 781 .get = hdmi_codec_iec958_default_get, 782 .put = hdmi_codec_iec958_default_put, 783 }, 784 { 785 .access = (SNDRV_CTL_ELEM_ACCESS_READ | 786 SNDRV_CTL_ELEM_ACCESS_VOLATILE), 787 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 788 .name = "ELD", 789 .info = hdmi_eld_ctl_info, 790 .get = hdmi_eld_ctl_get, 791 }, 792}; 793 794static int hdmi_codec_pcm_new(struct snd_soc_pcm_runtime *rtd, 795 struct snd_soc_dai *dai) 796{ 797 struct snd_soc_dai_driver *drv = dai->driver; 798 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 799 unsigned int i; 800 int ret; 801 802 ret = snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK, 803 NULL, drv->playback.channels_max, 0, 804 &hcp->chmap_info); 805 if (ret < 0) 806 return ret; 807 808 /* override handlers */ 809 hcp->chmap_info->private_data = hcp; 810 hcp->chmap_info->kctl->get = hdmi_codec_chmap_ctl_get; 811 812 /* default chmap supported is stereo */ 813 hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps; 814 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 815 816 for (i = 0; i < ARRAY_SIZE(hdmi_codec_controls); i++) { 817 struct snd_kcontrol *kctl; 818 819 /* add ELD ctl with the device number corresponding to the PCM stream */ 820 kctl = snd_ctl_new1(&hdmi_codec_controls[i], dai->component); 821 if (!kctl) 822 return -ENOMEM; 823 824 kctl->id.device = rtd->pcm->device; 825 ret = snd_ctl_add(rtd->card->snd_card, kctl); 826 if (ret < 0) 827 return ret; 828 } 829 830 return 0; 831} 832 833#ifdef CONFIG_SND_PROC_FS 834static void print_eld_info(struct snd_info_entry *entry, 835 struct snd_info_buffer *buffer) 836{ 837 struct hdmi_codec_priv *hcp = entry->private_data; 838 839 snd_print_eld_info(&hcp->eld_parsed, buffer); 840} 841 842static int hdmi_dai_proc_new(struct hdmi_codec_priv *hcp, 843 struct snd_soc_dai *dai) 844{ 845 struct snd_soc_component *component = dai->component; 846 struct snd_soc_card *card = component->card; 847 struct snd_soc_dai *d; 848 struct snd_soc_pcm_runtime *rtd; 849 struct snd_info_entry *entry; 850 char name[32]; 851 int err, i, id = 0; 852 853 /* 854 * To avoid duplicate proc entry, find its rtd and use rtd->id 855 * instead of dai->id 856 */ 857 for_each_card_rtds(card, rtd) { 858 for_each_rtd_dais(rtd, i, d) 859 if (d == dai) { 860 id = rtd->id; 861 goto found; 862 } 863 } 864found: 865 snprintf(name, sizeof(name), "eld#%d", id); 866 err = snd_card_proc_new(card->snd_card, name, &entry); 867 if (err < 0) 868 return err; 869 870 snd_info_set_text_ops(entry, hcp, print_eld_info); 871 hcp->proc_entry = entry; 872 873 return 0; 874} 875 876static void hdmi_dai_proc_free(struct hdmi_codec_priv *hcp) 877{ 878 snd_info_free_entry(hcp->proc_entry); 879 hcp->proc_entry = NULL; 880} 881#else 882static int hdmi_dai_proc_new(struct hdmi_codec_priv *hcp, 883 struct snd_soc_dai *dai) 884{ 885 return 0; 886} 887 888static void hdmi_dai_proc_free(struct hdmi_codec_priv *hcp) 889{ 890} 891#endif 892 893static int hdmi_dai_probe(struct snd_soc_dai *dai) 894{ 895 struct hdmi_codec_priv *hcp = 896 snd_soc_component_get_drvdata(dai->component); 897 struct snd_soc_dapm_context *dapm; 898 struct hdmi_codec_daifmt *daifmt; 899 struct snd_soc_dapm_route route[] = { 900 { 901 .sink = "TX", 902 .source = dai->driver->playback.stream_name, 903 }, 904 { 905 .sink = dai->driver->capture.stream_name, 906 .source = "RX", 907 }, 908 }; 909 int ret, i; 910 911 dapm = snd_soc_component_to_dapm(dai->component); 912 913 /* One of the directions might be omitted for unidirectional DAIs */ 914 for (i = 0; i < ARRAY_SIZE(route); i++) { 915 if (!route[i].source || !route[i].sink) 916 continue; 917 918 ret = snd_soc_dapm_add_routes(dapm, &route[i], 1); 919 if (ret) 920 return ret; 921 } 922 923 daifmt = devm_kzalloc(dai->dev, sizeof(*daifmt), GFP_KERNEL); 924 if (!daifmt) 925 return -ENOMEM; 926 927 snd_soc_dai_dma_data_set_playback(dai, daifmt); 928 929 return hdmi_dai_proc_new(hcp, dai); 930} 931 932static int hdmi_dai_remove(struct snd_soc_dai *dai) 933{ 934 struct hdmi_codec_priv *hcp = 935 snd_soc_component_get_drvdata(dai->component); 936 937 hdmi_dai_proc_free(hcp); 938 return 0; 939} 940 941static void hdmi_codec_jack_report(struct hdmi_codec_priv *hcp, 942 unsigned int jack_status) 943{ 944 if (jack_status != hcp->jack_status) { 945 if (hcp->jack) 946 snd_soc_jack_report(hcp->jack, jack_status, SND_JACK_AVOUT); 947 hcp->jack_status = jack_status; 948 } 949} 950 951static void plugged_cb(struct device *dev, bool plugged) 952{ 953 struct hdmi_codec_priv *hcp = dev_get_drvdata(dev); 954 int ret; 955 956 if (plugged) { 957 if (hcp->hcd.ops->get_eld) { 958 hcp->hcd.ops->get_eld(dev->parent, hcp->hcd.data, 959 hcp->eld, sizeof(hcp->eld)); 960 ret = snd_parse_eld(dev, &hcp->eld_parsed, 961 hcp->eld, sizeof(hcp->eld)); 962 if (ret < 0) 963 dev_dbg(dev, "Failed to parse ELD: %d\n", ret); 964 else 965 snd_show_eld(dev, &hcp->eld_parsed); 966 } 967 hdmi_codec_jack_report(hcp, SND_JACK_AVOUT); 968 } else { 969 hdmi_codec_jack_report(hcp, 0); 970 memset(hcp->eld, 0, sizeof(hcp->eld)); 971 } 972} 973 974static int hdmi_codec_set_jack(struct snd_soc_component *component, 975 struct snd_soc_jack *jack, 976 void *data) 977{ 978 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 979 980 if (hcp->hcd.ops->hook_plugged_cb) { 981 hcp->jack = jack; 982 983 /* 984 * Report the initial jack status which may have been provided 985 * by the parent hdmi driver while the hpd hook was registered. 986 */ 987 snd_soc_jack_report(jack, hcp->jack_status, SND_JACK_AVOUT); 988 989 return 0; 990 } 991 992 return -ENOTSUPP; 993} 994 995static int hdmi_dai_spdif_probe(struct snd_soc_dai *dai) 996{ 997 struct hdmi_codec_daifmt *cf; 998 int ret; 999 1000 ret = hdmi_dai_probe(dai); 1001 if (ret) 1002 return ret; 1003 1004 cf = snd_soc_dai_dma_data_get_playback(dai); 1005 cf->fmt = HDMI_SPDIF; 1006 1007 return 0; 1008} 1009 1010static const struct snd_soc_dai_ops hdmi_codec_i2s_dai_ops = { 1011 .probe = hdmi_dai_probe, 1012 .remove = hdmi_dai_remove, 1013 .startup = hdmi_codec_startup, 1014 .shutdown = hdmi_codec_shutdown, 1015 .hw_params = hdmi_codec_hw_params, 1016 .prepare = hdmi_codec_prepare, 1017 .set_fmt = hdmi_codec_i2s_set_fmt, 1018 .mute_stream = hdmi_codec_mute, 1019 .pcm_new = hdmi_codec_pcm_new, 1020 .auto_selectable_formats = &hdmi_codec_formats, 1021 .num_auto_selectable_formats = 1, 1022}; 1023 1024static const struct snd_soc_dai_ops hdmi_codec_spdif_dai_ops = { 1025 .probe = hdmi_dai_spdif_probe, 1026 .startup = hdmi_codec_startup, 1027 .shutdown = hdmi_codec_shutdown, 1028 .hw_params = hdmi_codec_hw_params, 1029 .prepare = hdmi_codec_prepare, 1030 .mute_stream = hdmi_codec_mute, 1031 .pcm_new = hdmi_codec_pcm_new, 1032}; 1033 1034static const struct snd_soc_dai_driver hdmi_i2s_dai = { 1035 .name = "i2s-hifi", 1036 .id = DAI_ID_I2S, 1037 .playback = { 1038 .stream_name = "I2S Playback", 1039 .channels_min = 2, 1040 .channels_max = 8, 1041 .rates = HDMI_RATES, 1042 .formats = I2S_FORMATS, 1043 .sig_bits = 24, 1044 }, 1045 .capture = { 1046 .stream_name = "Capture", 1047 .channels_min = 2, 1048 .channels_max = 8, 1049 .rates = HDMI_RATES, 1050 .formats = I2S_FORMATS, 1051 .sig_bits = 24, 1052 }, 1053 .ops = &hdmi_codec_i2s_dai_ops, 1054}; 1055 1056static const struct snd_soc_dai_driver hdmi_spdif_dai = { 1057 .name = "spdif-hifi", 1058 .id = DAI_ID_SPDIF, 1059 .playback = { 1060 .stream_name = "SPDIF Playback", 1061 .channels_min = 2, 1062 .channels_max = 2, 1063 .rates = HDMI_RATES, 1064 .formats = SPDIF_FORMATS, 1065 }, 1066 .capture = { 1067 .stream_name = "Capture", 1068 .channels_min = 2, 1069 .channels_max = 2, 1070 .rates = HDMI_RATES, 1071 .formats = SPDIF_FORMATS, 1072 }, 1073 .ops = &hdmi_codec_spdif_dai_ops, 1074}; 1075 1076static int hdmi_of_xlate_dai_id(struct snd_soc_component *component, 1077 struct device_node *endpoint) 1078{ 1079 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 1080 int ret = -ENOTSUPP; /* see snd_soc_get_dai_id() */ 1081 1082 if (hcp->hcd.ops->get_dai_id) 1083 ret = hcp->hcd.ops->get_dai_id(component, endpoint, hcp->hcd.data); 1084 1085 return ret; 1086} 1087 1088static int hdmi_probe(struct snd_soc_component *component) 1089{ 1090 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 1091 int ret = 0; 1092 1093 if (hcp->hcd.ops->hook_plugged_cb) { 1094 ret = hcp->hcd.ops->hook_plugged_cb(component->dev->parent, 1095 hcp->hcd.data, 1096 plugged_cb, 1097 component->dev); 1098 } 1099 1100 return ret; 1101} 1102 1103static void hdmi_remove(struct snd_soc_component *component) 1104{ 1105 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 1106 1107 if (hcp->hcd.ops->hook_plugged_cb) 1108 hcp->hcd.ops->hook_plugged_cb(component->dev->parent, 1109 hcp->hcd.data, NULL, NULL); 1110} 1111 1112static const struct snd_soc_component_driver hdmi_driver = { 1113 .probe = hdmi_probe, 1114 .remove = hdmi_remove, 1115 .dapm_widgets = hdmi_widgets, 1116 .num_dapm_widgets = ARRAY_SIZE(hdmi_widgets), 1117 .of_xlate_dai_id = hdmi_of_xlate_dai_id, 1118 .idle_bias_on = 1, 1119 .use_pmdown_time = 1, 1120 .endianness = 1, 1121 .set_jack = hdmi_codec_set_jack, 1122}; 1123 1124static int hdmi_codec_probe(struct platform_device *pdev) 1125{ 1126 struct hdmi_codec_pdata *hcd = pdev->dev.platform_data; 1127 struct snd_soc_dai_driver *daidrv; 1128 struct device *dev = &pdev->dev; 1129 struct hdmi_codec_priv *hcp; 1130 int dai_count, i = 0; 1131 int ret; 1132 1133 if (!hcd) { 1134 dev_err(dev, "%s: No platform data\n", __func__); 1135 return -EINVAL; 1136 } 1137 1138 dai_count = hcd->i2s + hcd->spdif; 1139 if (dai_count < 1 || !hcd->ops || 1140 (!hcd->ops->hw_params && !hcd->ops->prepare) || 1141 !hcd->ops->audio_shutdown) { 1142 dev_err(dev, "%s: Invalid parameters\n", __func__); 1143 return -EINVAL; 1144 } 1145 1146 hcp = devm_kzalloc(dev, sizeof(*hcp), GFP_KERNEL); 1147 if (!hcp) 1148 return -ENOMEM; 1149 1150 hcp->hcd = *hcd; 1151 mutex_init(&hcp->lock); 1152 1153 ret = snd_pcm_create_iec958_consumer_default(hcp->iec_status, 1154 sizeof(hcp->iec_status)); 1155 if (ret < 0) 1156 return ret; 1157 1158 daidrv = devm_kcalloc(dev, dai_count, sizeof(*daidrv), GFP_KERNEL); 1159 if (!daidrv) 1160 return -ENOMEM; 1161 1162 if (hcd->i2s) { 1163 daidrv[i] = hdmi_i2s_dai; 1164 daidrv[i].playback.channels_max = hcd->max_i2s_channels; 1165 if (hcd->i2s_formats) { 1166 daidrv[i].playback.formats = hcd->i2s_formats; 1167 daidrv[i].capture.formats = hcd->i2s_formats; 1168 } 1169 if (hcd->no_i2s_playback) 1170 memset(&daidrv[i].playback, 0, 1171 sizeof(daidrv[i].playback)); 1172 if (hcd->no_i2s_capture) 1173 memset(&daidrv[i].capture, 0, 1174 sizeof(daidrv[i].capture)); 1175 i++; 1176 } 1177 1178 if (hcd->spdif) { 1179 daidrv[i] = hdmi_spdif_dai; 1180 if (hcd->no_spdif_playback) 1181 memset(&daidrv[i].playback, 0, 1182 sizeof(daidrv[i].playback)); 1183 if (hcd->no_spdif_capture) 1184 memset(&daidrv[i].capture, 0, 1185 sizeof(daidrv[i].capture)); 1186 } 1187 1188 dev_set_drvdata(dev, hcp); 1189 1190 ret = devm_snd_soc_register_component(dev, &hdmi_driver, daidrv, 1191 dai_count); 1192 if (ret) { 1193 dev_err(dev, "%s: snd_soc_register_component() failed (%d)\n", 1194 __func__, ret); 1195 return ret; 1196 } 1197 return 0; 1198} 1199 1200static struct platform_driver hdmi_codec_driver = { 1201 .driver = { 1202 .name = HDMI_CODEC_DRV_NAME, 1203 }, 1204 .probe = hdmi_codec_probe, 1205}; 1206 1207module_platform_driver(hdmi_codec_driver); 1208 1209MODULE_AUTHOR("Jyri Sarha <jsarha@ti.com>"); 1210MODULE_DESCRIPTION("HDMI Audio Codec Driver"); 1211MODULE_LICENSE("GPL"); 1212MODULE_ALIAS("platform:" HDMI_CODEC_DRV_NAME);
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