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/cleanup.h> 8 #include <linux/module.h> 9 #include <linux/string.h> 10 #include <sound/core.h> 11 #include <sound/jack.h> 12 #include <sound/pcm.h> 13 #include <sound/pcm_params.h> 14 #include <sound/soc.h> 15 #include <sound/tlv.h> 16 #include <sound/pcm_drm_eld.h> 17 #include <sound/hdmi-codec.h> 18 #include <sound/pcm_iec958.h> 19 20 #include <drm/drm_crtc.h> /* This is only to get MAX_ELD_BYTES */ 21 #include <drm/drm_eld.h> 22 23 #define HDMI_CODEC_CHMAP_IDX_UNKNOWN -1 24 25 /* 26 * CEA speaker placement for HDMI 1.4: 27 * 28 * FL FLC FC FRC FR FRW 29 * 30 * LFE 31 * 32 * RL RLC RC RRC RR 33 * 34 * Speaker placement has to be extended to support HDMI 2.0 35 */ 36 enum hdmi_codec_cea_spk_placement { 37 FL = BIT(0), /* Front Left */ 38 FC = BIT(1), /* Front Center */ 39 FR = BIT(2), /* Front Right */ 40 FLC = BIT(3), /* Front Left Center */ 41 FRC = BIT(4), /* Front Right Center */ 42 RL = BIT(5), /* Rear Left */ 43 RC = BIT(6), /* Rear Center */ 44 RR = BIT(7), /* Rear Right */ 45 RLC = BIT(8), /* Rear Left Center */ 46 RRC = BIT(9), /* Rear Right Center */ 47 LFE = BIT(10), /* Low Frequency Effect */ 48 }; 49 50 /* 51 * cea Speaker allocation structure 52 */ 53 struct hdmi_codec_cea_spk_alloc { 54 const int ca_id; 55 unsigned int n_ch; 56 unsigned long mask; 57 }; 58 59 /* Channel maps stereo HDMI */ 60 static const struct snd_pcm_chmap_elem hdmi_codec_stereo_chmaps[] = { 61 { .channels = 2, 62 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } }, 63 { } 64 }; 65 66 /* Channel maps for multi-channel playbacks, up to 8 n_ch */ 67 static const struct snd_pcm_chmap_elem hdmi_codec_8ch_chmaps[] = { 68 { .channels = 2, /* CA_ID 0x00 */ 69 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } }, 70 { .channels = 4, /* CA_ID 0x01 */ 71 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 72 SNDRV_CHMAP_NA } }, 73 { .channels = 4, /* CA_ID 0x02 */ 74 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 75 SNDRV_CHMAP_FC } }, 76 { .channels = 4, /* CA_ID 0x03 */ 77 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 78 SNDRV_CHMAP_FC } }, 79 { .channels = 6, /* CA_ID 0x04 */ 80 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 81 SNDRV_CHMAP_NA, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 82 { .channels = 6, /* CA_ID 0x05 */ 83 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 84 SNDRV_CHMAP_NA, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 85 { .channels = 6, /* CA_ID 0x06 */ 86 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 87 SNDRV_CHMAP_FC, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 88 { .channels = 6, /* CA_ID 0x07 */ 89 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 90 SNDRV_CHMAP_FC, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 91 { .channels = 6, /* CA_ID 0x08 */ 92 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 93 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, 94 { .channels = 6, /* CA_ID 0x09 */ 95 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 96 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, 97 { .channels = 6, /* CA_ID 0x0A */ 98 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 99 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, 100 { .channels = 6, /* CA_ID 0x0B */ 101 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 102 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, 103 { .channels = 8, /* CA_ID 0x0C */ 104 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 105 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 106 SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 107 { .channels = 8, /* CA_ID 0x0D */ 108 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 109 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 110 SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 111 { .channels = 8, /* CA_ID 0x0E */ 112 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 113 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 114 SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 115 { .channels = 8, /* CA_ID 0x0F */ 116 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 117 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 118 SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 119 { .channels = 8, /* CA_ID 0x10 */ 120 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 121 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 122 SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, 123 { .channels = 8, /* CA_ID 0x11 */ 124 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 125 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 126 SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, 127 { .channels = 8, /* CA_ID 0x12 */ 128 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 129 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 130 SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, 131 { .channels = 8, /* CA_ID 0x13 */ 132 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 133 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 134 SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, 135 { .channels = 8, /* CA_ID 0x14 */ 136 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 137 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 138 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 139 { .channels = 8, /* CA_ID 0x15 */ 140 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 141 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 142 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 143 { .channels = 8, /* CA_ID 0x16 */ 144 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 145 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 146 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 147 { .channels = 8, /* CA_ID 0x17 */ 148 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 149 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 150 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 151 { .channels = 8, /* CA_ID 0x18 */ 152 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 153 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 154 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 155 { .channels = 8, /* CA_ID 0x19 */ 156 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 157 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 158 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 159 { .channels = 8, /* CA_ID 0x1A */ 160 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 161 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 162 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 163 { .channels = 8, /* CA_ID 0x1B */ 164 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 165 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 166 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 167 { .channels = 8, /* CA_ID 0x1C */ 168 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 169 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 170 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 171 { .channels = 8, /* CA_ID 0x1D */ 172 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 173 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 174 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 175 { .channels = 8, /* CA_ID 0x1E */ 176 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 177 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 178 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 179 { .channels = 8, /* CA_ID 0x1F */ 180 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 181 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 182 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 183 { } 184 }; 185 186 /* 187 * hdmi_codec_channel_alloc: speaker configuration available for CEA 188 * 189 * This is an ordered list where ca_id must exist in hdmi_codec_8ch_chmaps 190 * The preceding ones have better chances to be selected by 191 * hdmi_codec_get_ch_alloc_table_idx(). 192 */ 193 static const struct hdmi_codec_cea_spk_alloc hdmi_codec_channel_alloc[] = { 194 { .ca_id = 0x00, .n_ch = 2, 195 .mask = FL | FR }, 196 { .ca_id = 0x03, .n_ch = 4, 197 .mask = FL | FR | LFE | FC }, 198 { .ca_id = 0x02, .n_ch = 4, 199 .mask = FL | FR | FC }, 200 { .ca_id = 0x01, .n_ch = 4, 201 .mask = FL | FR | LFE }, 202 { .ca_id = 0x0b, .n_ch = 6, 203 .mask = FL | FR | LFE | FC | RL | RR }, 204 { .ca_id = 0x0a, .n_ch = 6, 205 .mask = FL | FR | FC | RL | RR }, 206 { .ca_id = 0x09, .n_ch = 6, 207 .mask = FL | FR | LFE | RL | RR }, 208 { .ca_id = 0x08, .n_ch = 6, 209 .mask = FL | FR | RL | RR }, 210 { .ca_id = 0x07, .n_ch = 6, 211 .mask = FL | FR | LFE | FC | RC }, 212 { .ca_id = 0x06, .n_ch = 6, 213 .mask = FL | FR | FC | RC }, 214 { .ca_id = 0x05, .n_ch = 6, 215 .mask = FL | FR | LFE | RC }, 216 { .ca_id = 0x04, .n_ch = 6, 217 .mask = FL | FR | RC }, 218 { .ca_id = 0x13, .n_ch = 8, 219 .mask = FL | FR | LFE | FC | RL | RR | RLC | RRC }, 220 { .ca_id = 0x1f, .n_ch = 8, 221 .mask = FL | FR | LFE | FC | RL | RR | FLC | FRC }, 222 { .ca_id = 0x12, .n_ch = 8, 223 .mask = FL | FR | FC | RL | RR | RLC | RRC }, 224 { .ca_id = 0x1e, .n_ch = 8, 225 .mask = FL | FR | FC | RL | RR | FLC | FRC }, 226 { .ca_id = 0x11, .n_ch = 8, 227 .mask = FL | FR | LFE | RL | RR | RLC | RRC }, 228 { .ca_id = 0x1d, .n_ch = 8, 229 .mask = FL | FR | LFE | RL | RR | FLC | FRC }, 230 { .ca_id = 0x10, .n_ch = 8, 231 .mask = FL | FR | RL | RR | RLC | RRC }, 232 { .ca_id = 0x1c, .n_ch = 8, 233 .mask = FL | FR | RL | RR | FLC | FRC }, 234 { .ca_id = 0x0f, .n_ch = 8, 235 .mask = FL | FR | LFE | FC | RL | RR | RC }, 236 { .ca_id = 0x1b, .n_ch = 8, 237 .mask = FL | FR | LFE | RC | FC | FLC | FRC }, 238 { .ca_id = 0x0e, .n_ch = 8, 239 .mask = FL | FR | FC | RL | RR | RC }, 240 { .ca_id = 0x1a, .n_ch = 8, 241 .mask = FL | FR | RC | FC | FLC | FRC }, 242 { .ca_id = 0x0d, .n_ch = 8, 243 .mask = FL | FR | LFE | RL | RR | RC }, 244 { .ca_id = 0x19, .n_ch = 8, 245 .mask = FL | FR | LFE | RC | FLC | FRC }, 246 { .ca_id = 0x0c, .n_ch = 8, 247 .mask = FL | FR | RC | RL | RR }, 248 { .ca_id = 0x18, .n_ch = 8, 249 .mask = FL | FR | RC | FLC | FRC }, 250 { .ca_id = 0x17, .n_ch = 8, 251 .mask = FL | FR | LFE | FC | FLC | FRC }, 252 { .ca_id = 0x16, .n_ch = 8, 253 .mask = FL | FR | FC | FLC | FRC }, 254 { .ca_id = 0x15, .n_ch = 8, 255 .mask = FL | FR | LFE | FLC | FRC }, 256 { .ca_id = 0x14, .n_ch = 8, 257 .mask = FL | FR | FLC | FRC }, 258 { .ca_id = 0x0b, .n_ch = 8, 259 .mask = FL | FR | LFE | FC | RL | RR }, 260 { .ca_id = 0x0a, .n_ch = 8, 261 .mask = FL | FR | FC | RL | RR }, 262 { .ca_id = 0x09, .n_ch = 8, 263 .mask = FL | FR | LFE | RL | RR }, 264 { .ca_id = 0x08, .n_ch = 8, 265 .mask = FL | FR | RL | RR }, 266 { .ca_id = 0x07, .n_ch = 8, 267 .mask = FL | FR | LFE | FC | RC }, 268 { .ca_id = 0x06, .n_ch = 8, 269 .mask = FL | FR | FC | RC }, 270 { .ca_id = 0x05, .n_ch = 8, 271 .mask = FL | FR | LFE | RC }, 272 { .ca_id = 0x04, .n_ch = 8, 273 .mask = FL | FR | RC }, 274 { .ca_id = 0x03, .n_ch = 8, 275 .mask = FL | FR | LFE | FC }, 276 { .ca_id = 0x02, .n_ch = 8, 277 .mask = FL | FR | FC }, 278 { .ca_id = 0x01, .n_ch = 8, 279 .mask = FL | FR | LFE }, 280 }; 281 282 struct hdmi_codec_priv { 283 struct hdmi_codec_pdata hcd; 284 uint8_t eld[MAX_ELD_BYTES]; 285 struct snd_parsed_hdmi_eld eld_parsed; 286 struct snd_pcm_chmap *chmap_info; 287 unsigned int chmap_idx; 288 struct mutex lock; 289 bool busy; 290 struct snd_soc_jack *jack; 291 unsigned int jack_status; 292 u8 iec_status[AES_IEC958_STATUS_SIZE]; 293 struct snd_info_entry *proc_entry; 294 }; 295 296 static const struct snd_soc_dapm_widget hdmi_widgets[] = { 297 SND_SOC_DAPM_OUTPUT("TX"), 298 SND_SOC_DAPM_OUTPUT("RX"), 299 }; 300 301 enum { 302 DAI_ID_I2S = 0, 303 DAI_ID_SPDIF, 304 }; 305 306 static int hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol, 307 struct snd_ctl_elem_info *uinfo) 308 { 309 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; 310 uinfo->count = sizeof_field(struct hdmi_codec_priv, eld); 311 312 return 0; 313 } 314 315 static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol, 316 struct snd_ctl_elem_value *ucontrol) 317 { 318 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 319 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 320 321 memcpy(ucontrol->value.bytes.data, hcp->eld, sizeof(hcp->eld)); 322 323 return 0; 324 } 325 326 static unsigned long hdmi_codec_spk_mask_from_alloc(int spk_alloc) 327 { 328 int i; 329 static const unsigned long hdmi_codec_eld_spk_alloc_bits[] = { 330 [0] = FL | FR, [1] = LFE, [2] = FC, [3] = RL | RR, 331 [4] = RC, [5] = FLC | FRC, [6] = RLC | RRC, 332 }; 333 unsigned long spk_mask = 0; 334 335 for (i = 0; i < ARRAY_SIZE(hdmi_codec_eld_spk_alloc_bits); i++) { 336 if (spk_alloc & (1 << i)) 337 spk_mask |= hdmi_codec_eld_spk_alloc_bits[i]; 338 } 339 340 return spk_mask; 341 } 342 343 static void hdmi_codec_eld_chmap(struct hdmi_codec_priv *hcp) 344 { 345 u8 spk_alloc; 346 unsigned long spk_mask; 347 348 spk_alloc = drm_eld_get_spk_alloc(hcp->eld); 349 spk_mask = hdmi_codec_spk_mask_from_alloc(spk_alloc); 350 351 /* Detect if only stereo supported, else return 8 channels mappings */ 352 if ((spk_mask & ~(FL | FR)) && hcp->chmap_info->max_channels > 2) 353 hcp->chmap_info->chmap = hdmi_codec_8ch_chmaps; 354 else 355 hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps; 356 } 357 358 static int hdmi_codec_get_ch_alloc_table_idx(struct hdmi_codec_priv *hcp, 359 unsigned char channels) 360 { 361 int i; 362 u8 spk_alloc; 363 unsigned long spk_mask; 364 const struct hdmi_codec_cea_spk_alloc *cap = hdmi_codec_channel_alloc; 365 366 spk_alloc = drm_eld_get_spk_alloc(hcp->eld); 367 spk_mask = hdmi_codec_spk_mask_from_alloc(spk_alloc); 368 369 for (i = 0; i < ARRAY_SIZE(hdmi_codec_channel_alloc); i++, cap++) { 370 /* If spk_alloc == 0, HDMI is unplugged return stereo config*/ 371 if (!spk_alloc && cap->ca_id == 0) 372 return i; 373 if (cap->n_ch != channels) 374 continue; 375 if (!(cap->mask == (spk_mask & cap->mask))) 376 continue; 377 return i; 378 } 379 380 return -EINVAL; 381 } 382 static int hdmi_codec_chmap_ctl_get(struct snd_kcontrol *kcontrol, 383 struct snd_ctl_elem_value *ucontrol) 384 { 385 unsigned const char *map; 386 unsigned int i; 387 struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol); 388 struct hdmi_codec_priv *hcp = info->private_data; 389 390 if (hcp->chmap_idx != HDMI_CODEC_CHMAP_IDX_UNKNOWN) 391 map = info->chmap[hcp->chmap_idx].map; 392 393 for (i = 0; i < info->max_channels; i++) { 394 if (hcp->chmap_idx == HDMI_CODEC_CHMAP_IDX_UNKNOWN) 395 ucontrol->value.integer.value[i] = 0; 396 else 397 ucontrol->value.integer.value[i] = map[i]; 398 } 399 400 return 0; 401 } 402 403 static int hdmi_codec_iec958_info(struct snd_kcontrol *kcontrol, 404 struct snd_ctl_elem_info *uinfo) 405 { 406 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; 407 uinfo->count = 1; 408 return 0; 409 } 410 411 static int hdmi_codec_iec958_default_get(struct snd_kcontrol *kcontrol, 412 struct snd_ctl_elem_value *ucontrol) 413 { 414 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 415 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 416 417 memcpy(ucontrol->value.iec958.status, hcp->iec_status, 418 sizeof(hcp->iec_status)); 419 420 return 0; 421 } 422 423 static int hdmi_codec_iec958_default_put(struct snd_kcontrol *kcontrol, 424 struct snd_ctl_elem_value *ucontrol) 425 { 426 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 427 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 428 429 if (!memcmp(hcp->iec_status, ucontrol->value.iec958.status, 430 sizeof(hcp->iec_status))) 431 return 0; 432 433 memcpy(hcp->iec_status, ucontrol->value.iec958.status, 434 sizeof(hcp->iec_status)); 435 436 return 1; 437 } 438 439 static int hdmi_codec_iec958_mask_get(struct snd_kcontrol *kcontrol, 440 struct snd_ctl_elem_value *ucontrol) 441 { 442 memset(ucontrol->value.iec958.status, 0xff, 443 sizeof_field(struct hdmi_codec_priv, iec_status)); 444 445 return 0; 446 } 447 448 static int hdmi_codec_startup(struct snd_pcm_substream *substream, 449 struct snd_soc_dai *dai) 450 { 451 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 452 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; 453 bool has_capture = !hcp->hcd.no_i2s_capture; 454 bool has_playback = !hcp->hcd.no_i2s_playback; 455 int ret = 0; 456 457 if (!((has_playback && tx) || (has_capture && !tx))) 458 return 0; 459 460 guard(mutex)(&hcp->lock); 461 if (hcp->busy) { 462 dev_err(dai->dev, "Only one simultaneous stream supported!\n"); 463 return -EINVAL; 464 } 465 466 if (hcp->hcd.ops->audio_startup) { 467 ret = hcp->hcd.ops->audio_startup(dai->dev->parent, hcp->hcd.data); 468 if (ret) 469 return ret; 470 } 471 472 if (tx && hcp->hcd.ops->get_eld) { 473 ret = hcp->hcd.ops->get_eld(dai->dev->parent, hcp->hcd.data, 474 hcp->eld, sizeof(hcp->eld)); 475 if (ret) 476 return ret; 477 478 snd_parse_eld(dai->dev, &hcp->eld_parsed, 479 hcp->eld, sizeof(hcp->eld)); 480 481 ret = snd_pcm_hw_constraint_eld(substream->runtime, hcp->eld); 482 if (ret) 483 return ret; 484 485 /* Select chmap supported */ 486 hdmi_codec_eld_chmap(hcp); 487 } 488 489 hcp->busy = true; 490 491 return ret; 492 } 493 494 static void hdmi_codec_shutdown(struct snd_pcm_substream *substream, 495 struct snd_soc_dai *dai) 496 { 497 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 498 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; 499 bool has_capture = !hcp->hcd.no_i2s_capture; 500 bool has_playback = !hcp->hcd.no_i2s_playback; 501 502 if (!((has_playback && tx) || (has_capture && !tx))) 503 return; 504 505 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 506 hcp->hcd.ops->audio_shutdown(dai->dev->parent, hcp->hcd.data); 507 508 guard(mutex)(&hcp->lock); 509 hcp->busy = false; 510 } 511 512 static int hdmi_codec_fill_codec_params(struct snd_soc_dai *dai, 513 unsigned int sample_width, 514 unsigned int sample_rate, 515 unsigned int channels, 516 struct hdmi_codec_params *hp) 517 { 518 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 519 int idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 520 u8 ca_id = 0; 521 bool pcm_audio = !(hcp->iec_status[0] & IEC958_AES0_NONAUDIO); 522 523 if (pcm_audio) { 524 /* Select a channel allocation that matches with ELD and pcm channels */ 525 idx = hdmi_codec_get_ch_alloc_table_idx(hcp, channels); 526 527 if (idx < 0) { 528 dev_err(dai->dev, "Not able to map channels to speakers (%d)\n", 529 idx); 530 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 531 return idx; 532 } 533 534 ca_id = hdmi_codec_channel_alloc[idx].ca_id; 535 } 536 537 memset(hp, 0, sizeof(*hp)); 538 539 hdmi_audio_infoframe_init(&hp->cea); 540 541 if (pcm_audio) 542 hp->cea.channels = channels; 543 else 544 hp->cea.channels = 0; 545 546 hp->cea.coding_type = HDMI_AUDIO_CODING_TYPE_STREAM; 547 hp->cea.sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM; 548 hp->cea.sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM; 549 hp->cea.channel_allocation = ca_id; 550 551 hp->sample_width = sample_width; 552 hp->sample_rate = sample_rate; 553 hp->channels = channels; 554 555 if (pcm_audio) 556 hcp->chmap_idx = ca_id; 557 else 558 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 559 560 return 0; 561 } 562 563 static int hdmi_codec_hw_params(struct snd_pcm_substream *substream, 564 struct snd_pcm_hw_params *params, 565 struct snd_soc_dai *dai) 566 { 567 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 568 struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai); 569 struct hdmi_codec_params hp = { 570 .iec = { 571 .status = { 0 }, 572 .subcode = { 0 }, 573 .pad = 0, 574 .dig_subframe = { 0 }, 575 } 576 }; 577 int ret; 578 579 if (!hcp->hcd.ops->hw_params) 580 return 0; 581 582 dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__, 583 params_width(params), params_rate(params), 584 params_channels(params)); 585 586 ret = hdmi_codec_fill_codec_params(dai, 587 params_width(params), 588 params_rate(params), 589 params_channels(params), 590 &hp); 591 if (ret < 0) 592 return ret; 593 594 memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status)); 595 ret = snd_pcm_fill_iec958_consumer_hw_params(params, hp.iec.status, 596 sizeof(hp.iec.status)); 597 if (ret < 0) { 598 dev_err(dai->dev, "Creating IEC958 channel status failed %d\n", 599 ret); 600 return ret; 601 } 602 603 cf->bit_fmt = params_format(params); 604 return hcp->hcd.ops->hw_params(dai->dev->parent, hcp->hcd.data, 605 cf, &hp); 606 } 607 608 static int hdmi_codec_prepare(struct snd_pcm_substream *substream, 609 struct snd_soc_dai *dai) 610 { 611 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 612 struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai); 613 struct snd_pcm_runtime *runtime = substream->runtime; 614 unsigned int channels = runtime->channels; 615 unsigned int width = snd_pcm_format_width(runtime->format); 616 unsigned int rate = runtime->rate; 617 struct hdmi_codec_params hp; 618 int ret; 619 620 if (!hcp->hcd.ops->prepare) 621 return 0; 622 623 dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__, 624 width, rate, channels); 625 626 ret = hdmi_codec_fill_codec_params(dai, width, rate, channels, &hp); 627 if (ret < 0) 628 return ret; 629 630 memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status)); 631 ret = snd_pcm_fill_iec958_consumer(runtime, hp.iec.status, 632 sizeof(hp.iec.status)); 633 if (ret < 0) { 634 dev_err(dai->dev, "Creating IEC958 channel status failed %d\n", 635 ret); 636 return ret; 637 } 638 639 cf->bit_fmt = runtime->format; 640 return hcp->hcd.ops->prepare(dai->dev->parent, hcp->hcd.data, 641 cf, &hp); 642 } 643 644 static int hdmi_codec_i2s_set_fmt(struct snd_soc_dai *dai, 645 unsigned int fmt) 646 { 647 struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai); 648 649 /* Reset daifmt */ 650 memset(cf, 0, sizeof(*cf)); 651 652 switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { 653 case SND_SOC_DAIFMT_CBP_CFP: 654 cf->bit_clk_provider = 1; 655 cf->frame_clk_provider = 1; 656 break; 657 case SND_SOC_DAIFMT_CBC_CFP: 658 cf->frame_clk_provider = 1; 659 break; 660 case SND_SOC_DAIFMT_CBP_CFC: 661 cf->bit_clk_provider = 1; 662 break; 663 case SND_SOC_DAIFMT_CBC_CFC: 664 break; 665 default: 666 return -EINVAL; 667 } 668 669 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 670 case SND_SOC_DAIFMT_NB_NF: 671 break; 672 case SND_SOC_DAIFMT_NB_IF: 673 cf->frame_clk_inv = 1; 674 break; 675 case SND_SOC_DAIFMT_IB_NF: 676 cf->bit_clk_inv = 1; 677 break; 678 case SND_SOC_DAIFMT_IB_IF: 679 cf->frame_clk_inv = 1; 680 cf->bit_clk_inv = 1; 681 break; 682 } 683 684 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 685 case SND_SOC_DAIFMT_I2S: 686 cf->fmt = HDMI_I2S; 687 break; 688 case SND_SOC_DAIFMT_DSP_A: 689 cf->fmt = HDMI_DSP_A; 690 break; 691 case SND_SOC_DAIFMT_DSP_B: 692 cf->fmt = HDMI_DSP_B; 693 break; 694 case SND_SOC_DAIFMT_RIGHT_J: 695 cf->fmt = HDMI_RIGHT_J; 696 break; 697 case SND_SOC_DAIFMT_LEFT_J: 698 cf->fmt = HDMI_LEFT_J; 699 break; 700 case SND_SOC_DAIFMT_AC97: 701 cf->fmt = HDMI_AC97; 702 break; 703 default: 704 dev_err(dai->dev, "Invalid DAI interface format\n"); 705 return -EINVAL; 706 } 707 708 return 0; 709 } 710 711 static int hdmi_codec_mute(struct snd_soc_dai *dai, int mute, int direction) 712 { 713 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 714 715 /* 716 * ignore if direction was CAPTURE 717 * and it had .no_capture_mute flag 718 * see 719 * snd_soc_dai_digital_mute() 720 */ 721 if (hcp->hcd.ops->mute_stream && 722 (direction == SNDRV_PCM_STREAM_PLAYBACK || 723 !hcp->hcd.no_capture_mute)) 724 return hcp->hcd.ops->mute_stream(dai->dev->parent, 725 hcp->hcd.data, 726 mute, direction); 727 728 return -ENOTSUPP; 729 } 730 731 /* 732 * This driver can select all SND_SOC_DAIFMT_CBx_CFx, 733 * but need to be selected from Sound Card, not be auto selected. 734 * Because it might be used from other driver. 735 * For example, 736 * ${LINUX}/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c 737 */ 738 static const u64 hdmi_codec_formats = 739 SND_SOC_POSSIBLE_DAIFMT_NB_NF | 740 SND_SOC_POSSIBLE_DAIFMT_NB_IF | 741 SND_SOC_POSSIBLE_DAIFMT_IB_NF | 742 SND_SOC_POSSIBLE_DAIFMT_IB_IF | 743 SND_SOC_POSSIBLE_DAIFMT_I2S | 744 SND_SOC_POSSIBLE_DAIFMT_DSP_A | 745 SND_SOC_POSSIBLE_DAIFMT_DSP_B | 746 SND_SOC_POSSIBLE_DAIFMT_RIGHT_J | 747 SND_SOC_POSSIBLE_DAIFMT_LEFT_J | 748 SND_SOC_POSSIBLE_DAIFMT_AC97; 749 750 #define HDMI_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ 751 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\ 752 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\ 753 SNDRV_PCM_RATE_192000) 754 755 #define SPDIF_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 756 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE) 757 758 /* 759 * This list is only for formats allowed on the I2S bus. So there is 760 * some formats listed that are not supported by HDMI interface. For 761 * instance allowing the 32-bit formats enables 24-precision with CPU 762 * DAIs that do not support 24-bit formats. If the extra formats cause 763 * problems, we should add the video side driver an option to disable 764 * them. 765 */ 766 #define I2S_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 767 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE |\ 768 SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE) 769 770 static struct snd_kcontrol_new hdmi_codec_controls[] = { 771 { 772 .access = SNDRV_CTL_ELEM_ACCESS_READ, 773 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 774 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK), 775 .info = hdmi_codec_iec958_info, 776 .get = hdmi_codec_iec958_mask_get, 777 }, 778 { 779 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 780 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT), 781 .info = hdmi_codec_iec958_info, 782 .get = hdmi_codec_iec958_default_get, 783 .put = hdmi_codec_iec958_default_put, 784 }, 785 { 786 .access = (SNDRV_CTL_ELEM_ACCESS_READ | 787 SNDRV_CTL_ELEM_ACCESS_VOLATILE), 788 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 789 .name = "ELD", 790 .info = hdmi_eld_ctl_info, 791 .get = hdmi_eld_ctl_get, 792 }, 793 }; 794 795 static int hdmi_codec_pcm_new(struct snd_soc_pcm_runtime *rtd, 796 struct snd_soc_dai *dai) 797 { 798 struct snd_soc_dai_driver *drv = dai->driver; 799 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 800 unsigned int i; 801 int ret; 802 803 ret = snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK, 804 NULL, drv->playback.channels_max, 0, 805 &hcp->chmap_info); 806 if (ret < 0) 807 return ret; 808 809 /* override handlers */ 810 hcp->chmap_info->private_data = hcp; 811 hcp->chmap_info->kctl->get = hdmi_codec_chmap_ctl_get; 812 813 /* default chmap supported is stereo */ 814 hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps; 815 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 816 817 for (i = 0; i < ARRAY_SIZE(hdmi_codec_controls); i++) { 818 struct snd_kcontrol *kctl; 819 820 /* add ELD ctl with the device number corresponding to the PCM stream */ 821 kctl = snd_ctl_new1(&hdmi_codec_controls[i], dai->component); 822 if (!kctl) 823 return -ENOMEM; 824 825 kctl->id.device = rtd->pcm->device; 826 ret = snd_ctl_add(rtd->card->snd_card, kctl); 827 if (ret < 0) 828 return ret; 829 } 830 831 return 0; 832 } 833 834 #ifdef CONFIG_SND_PROC_FS 835 static void print_eld_info(struct snd_info_entry *entry, 836 struct snd_info_buffer *buffer) 837 { 838 struct hdmi_codec_priv *hcp = entry->private_data; 839 840 snd_print_eld_info(&hcp->eld_parsed, buffer); 841 } 842 843 static int hdmi_dai_proc_new(struct hdmi_codec_priv *hcp, 844 struct snd_soc_dai *dai) 845 { 846 struct snd_soc_component *component = dai->component; 847 struct snd_soc_card *card = component->card; 848 struct snd_soc_dai *d; 849 struct snd_soc_pcm_runtime *rtd; 850 struct snd_info_entry *entry; 851 char name[32]; 852 int err, i, id = 0; 853 854 /* 855 * To avoid duplicate proc entry, find its rtd and use rtd->id 856 * instead of dai->id 857 */ 858 for_each_card_rtds(card, rtd) { 859 for_each_rtd_dais(rtd, i, d) 860 if (d == dai) { 861 id = rtd->id; 862 goto found; 863 } 864 } 865 found: 866 snprintf(name, sizeof(name), "eld#%d", id); 867 err = snd_card_proc_new(card->snd_card, name, &entry); 868 if (err < 0) 869 return err; 870 871 snd_info_set_text_ops(entry, hcp, print_eld_info); 872 hcp->proc_entry = entry; 873 874 return 0; 875 } 876 877 static void hdmi_dai_proc_free(struct hdmi_codec_priv *hcp) 878 { 879 snd_info_free_entry(hcp->proc_entry); 880 hcp->proc_entry = NULL; 881 } 882 #else 883 static int hdmi_dai_proc_new(struct hdmi_codec_priv *hcp, 884 struct snd_soc_dai *dai) 885 { 886 return 0; 887 } 888 889 static void hdmi_dai_proc_free(struct hdmi_codec_priv *hcp) 890 { 891 } 892 #endif 893 894 static int hdmi_dai_probe(struct snd_soc_dai *dai) 895 { 896 struct hdmi_codec_priv *hcp = 897 snd_soc_component_get_drvdata(dai->component); 898 struct snd_soc_dapm_context *dapm; 899 struct hdmi_codec_daifmt *daifmt; 900 struct snd_soc_dapm_route route[] = { 901 { 902 .sink = "TX", 903 .source = dai->driver->playback.stream_name, 904 }, 905 { 906 .sink = dai->driver->capture.stream_name, 907 .source = "RX", 908 }, 909 }; 910 int ret, i; 911 912 dapm = snd_soc_component_to_dapm(dai->component); 913 914 /* One of the directions might be omitted for unidirectional DAIs */ 915 for (i = 0; i < ARRAY_SIZE(route); i++) { 916 if (!route[i].source || !route[i].sink) 917 continue; 918 919 ret = snd_soc_dapm_add_routes(dapm, &route[i], 1); 920 if (ret) 921 return ret; 922 } 923 924 daifmt = devm_kzalloc(dai->dev, sizeof(*daifmt), GFP_KERNEL); 925 if (!daifmt) 926 return -ENOMEM; 927 928 snd_soc_dai_dma_data_set_playback(dai, daifmt); 929 930 return hdmi_dai_proc_new(hcp, dai); 931 } 932 933 static int hdmi_dai_remove(struct snd_soc_dai *dai) 934 { 935 struct hdmi_codec_priv *hcp = 936 snd_soc_component_get_drvdata(dai->component); 937 938 hdmi_dai_proc_free(hcp); 939 return 0; 940 } 941 942 static void hdmi_codec_jack_report(struct hdmi_codec_priv *hcp, 943 unsigned int jack_status) 944 { 945 if (jack_status != hcp->jack_status) { 946 if (hcp->jack) 947 snd_soc_jack_report(hcp->jack, jack_status, SND_JACK_AVOUT); 948 hcp->jack_status = jack_status; 949 } 950 } 951 952 static void plugged_cb(struct device *dev, bool plugged) 953 { 954 struct hdmi_codec_priv *hcp = dev_get_drvdata(dev); 955 int ret; 956 957 if (plugged) { 958 if (hcp->hcd.ops->get_eld) { 959 hcp->hcd.ops->get_eld(dev->parent, hcp->hcd.data, 960 hcp->eld, sizeof(hcp->eld)); 961 ret = snd_parse_eld(dev, &hcp->eld_parsed, 962 hcp->eld, sizeof(hcp->eld)); 963 if (ret < 0) 964 dev_dbg(dev, "Failed to parse ELD: %d\n", ret); 965 else 966 snd_show_eld(dev, &hcp->eld_parsed); 967 } 968 hdmi_codec_jack_report(hcp, SND_JACK_AVOUT); 969 } else { 970 hdmi_codec_jack_report(hcp, 0); 971 memset(hcp->eld, 0, sizeof(hcp->eld)); 972 } 973 } 974 975 static int hdmi_codec_set_jack(struct snd_soc_component *component, 976 struct snd_soc_jack *jack, 977 void *data) 978 { 979 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 980 981 if (hcp->hcd.ops->hook_plugged_cb) { 982 hcp->jack = jack; 983 984 /* 985 * Report the initial jack status which may have been provided 986 * by the parent hdmi driver while the hpd hook was registered. 987 */ 988 snd_soc_jack_report(jack, hcp->jack_status, SND_JACK_AVOUT); 989 990 return 0; 991 } 992 993 return -ENOTSUPP; 994 } 995 996 static int hdmi_dai_spdif_probe(struct snd_soc_dai *dai) 997 { 998 struct hdmi_codec_daifmt *cf; 999 int ret; 1000 1001 ret = hdmi_dai_probe(dai); 1002 if (ret) 1003 return ret; 1004 1005 cf = snd_soc_dai_dma_data_get_playback(dai); 1006 cf->fmt = HDMI_SPDIF; 1007 1008 return 0; 1009 } 1010 1011 static const struct snd_soc_dai_ops hdmi_codec_i2s_dai_ops = { 1012 .probe = hdmi_dai_probe, 1013 .remove = hdmi_dai_remove, 1014 .startup = hdmi_codec_startup, 1015 .shutdown = hdmi_codec_shutdown, 1016 .hw_params = hdmi_codec_hw_params, 1017 .prepare = hdmi_codec_prepare, 1018 .set_fmt = hdmi_codec_i2s_set_fmt, 1019 .mute_stream = hdmi_codec_mute, 1020 .pcm_new = hdmi_codec_pcm_new, 1021 .auto_selectable_formats = &hdmi_codec_formats, 1022 .num_auto_selectable_formats = 1, 1023 }; 1024 1025 static const struct snd_soc_dai_ops hdmi_codec_spdif_dai_ops = { 1026 .probe = hdmi_dai_spdif_probe, 1027 .startup = hdmi_codec_startup, 1028 .shutdown = hdmi_codec_shutdown, 1029 .hw_params = hdmi_codec_hw_params, 1030 .prepare = hdmi_codec_prepare, 1031 .mute_stream = hdmi_codec_mute, 1032 .pcm_new = hdmi_codec_pcm_new, 1033 }; 1034 1035 static const struct snd_soc_dai_driver hdmi_i2s_dai = { 1036 .name = "i2s-hifi", 1037 .id = DAI_ID_I2S, 1038 .playback = { 1039 .stream_name = "I2S Playback", 1040 .channels_min = 2, 1041 .channels_max = 8, 1042 .rates = HDMI_RATES, 1043 .formats = I2S_FORMATS, 1044 .sig_bits = 24, 1045 }, 1046 .capture = { 1047 .stream_name = "Capture", 1048 .channels_min = 2, 1049 .channels_max = 8, 1050 .rates = HDMI_RATES, 1051 .formats = I2S_FORMATS, 1052 .sig_bits = 24, 1053 }, 1054 .ops = &hdmi_codec_i2s_dai_ops, 1055 }; 1056 1057 static const struct snd_soc_dai_driver hdmi_spdif_dai = { 1058 .name = "spdif-hifi", 1059 .id = DAI_ID_SPDIF, 1060 .playback = { 1061 .stream_name = "SPDIF Playback", 1062 .channels_min = 2, 1063 .channels_max = 2, 1064 .rates = HDMI_RATES, 1065 .formats = SPDIF_FORMATS, 1066 }, 1067 .capture = { 1068 .stream_name = "Capture", 1069 .channels_min = 2, 1070 .channels_max = 2, 1071 .rates = HDMI_RATES, 1072 .formats = SPDIF_FORMATS, 1073 }, 1074 .ops = &hdmi_codec_spdif_dai_ops, 1075 }; 1076 1077 static int hdmi_of_xlate_dai_id(struct snd_soc_component *component, 1078 struct device_node *endpoint) 1079 { 1080 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 1081 int ret = -ENOTSUPP; /* see snd_soc_get_dai_id() */ 1082 1083 if (hcp->hcd.ops->get_dai_id) 1084 ret = hcp->hcd.ops->get_dai_id(component, endpoint, hcp->hcd.data); 1085 1086 return ret; 1087 } 1088 1089 static int hdmi_probe(struct snd_soc_component *component) 1090 { 1091 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 1092 int ret = 0; 1093 1094 if (hcp->hcd.ops->hook_plugged_cb) { 1095 ret = hcp->hcd.ops->hook_plugged_cb(component->dev->parent, 1096 hcp->hcd.data, 1097 plugged_cb, 1098 component->dev); 1099 } 1100 1101 return ret; 1102 } 1103 1104 static void hdmi_remove(struct snd_soc_component *component) 1105 { 1106 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 1107 1108 if (hcp->hcd.ops->hook_plugged_cb) 1109 hcp->hcd.ops->hook_plugged_cb(component->dev->parent, 1110 hcp->hcd.data, NULL, NULL); 1111 } 1112 1113 static const struct snd_soc_component_driver hdmi_driver = { 1114 .probe = hdmi_probe, 1115 .remove = hdmi_remove, 1116 .dapm_widgets = hdmi_widgets, 1117 .num_dapm_widgets = ARRAY_SIZE(hdmi_widgets), 1118 .of_xlate_dai_id = hdmi_of_xlate_dai_id, 1119 .idle_bias_on = 1, 1120 .use_pmdown_time = 1, 1121 .endianness = 1, 1122 .set_jack = hdmi_codec_set_jack, 1123 }; 1124 1125 static int hdmi_codec_probe(struct platform_device *pdev) 1126 { 1127 struct hdmi_codec_pdata *hcd = pdev->dev.platform_data; 1128 struct snd_soc_dai_driver *daidrv; 1129 struct device *dev = &pdev->dev; 1130 struct hdmi_codec_priv *hcp; 1131 int dai_count, i = 0; 1132 int ret; 1133 1134 if (!hcd) { 1135 dev_err(dev, "%s: No platform data\n", __func__); 1136 return -EINVAL; 1137 } 1138 1139 dai_count = hcd->i2s + hcd->spdif; 1140 if (dai_count < 1 || !hcd->ops || 1141 (!hcd->ops->hw_params && !hcd->ops->prepare) || 1142 !hcd->ops->audio_shutdown) { 1143 dev_err(dev, "%s: Invalid parameters\n", __func__); 1144 return -EINVAL; 1145 } 1146 1147 hcp = devm_kzalloc(dev, sizeof(*hcp), GFP_KERNEL); 1148 if (!hcp) 1149 return -ENOMEM; 1150 1151 hcp->hcd = *hcd; 1152 mutex_init(&hcp->lock); 1153 1154 ret = snd_pcm_create_iec958_consumer_default(hcp->iec_status, 1155 sizeof(hcp->iec_status)); 1156 if (ret < 0) 1157 return ret; 1158 1159 daidrv = devm_kcalloc(dev, dai_count, sizeof(*daidrv), GFP_KERNEL); 1160 if (!daidrv) 1161 return -ENOMEM; 1162 1163 if (hcd->i2s) { 1164 daidrv[i] = hdmi_i2s_dai; 1165 daidrv[i].playback.channels_max = hcd->max_i2s_channels; 1166 if (hcd->i2s_formats) { 1167 daidrv[i].playback.formats = hcd->i2s_formats; 1168 daidrv[i].capture.formats = hcd->i2s_formats; 1169 } 1170 if (hcd->no_i2s_playback) 1171 memset(&daidrv[i].playback, 0, 1172 sizeof(daidrv[i].playback)); 1173 if (hcd->no_i2s_capture) 1174 memset(&daidrv[i].capture, 0, 1175 sizeof(daidrv[i].capture)); 1176 i++; 1177 } 1178 1179 if (hcd->spdif) { 1180 daidrv[i] = hdmi_spdif_dai; 1181 if (hcd->no_spdif_playback) 1182 memset(&daidrv[i].playback, 0, 1183 sizeof(daidrv[i].playback)); 1184 if (hcd->no_spdif_capture) 1185 memset(&daidrv[i].capture, 0, 1186 sizeof(daidrv[i].capture)); 1187 } 1188 1189 dev_set_drvdata(dev, hcp); 1190 1191 ret = devm_snd_soc_register_component(dev, &hdmi_driver, daidrv, 1192 dai_count); 1193 if (ret) { 1194 dev_err(dev, "%s: snd_soc_register_component() failed (%d)\n", 1195 __func__, ret); 1196 return ret; 1197 } 1198 return 0; 1199 } 1200 1201 static struct platform_driver hdmi_codec_driver = { 1202 .driver = { 1203 .name = HDMI_CODEC_DRV_NAME, 1204 }, 1205 .probe = hdmi_codec_probe, 1206 }; 1207 1208 module_platform_driver(hdmi_codec_driver); 1209 1210 MODULE_AUTHOR("Jyri Sarha <jsarha@ti.com>"); 1211 MODULE_DESCRIPTION("HDMI Audio Codec Driver"); 1212 MODULE_LICENSE("GPL"); 1213 MODULE_ALIAS("platform:" HDMI_CODEC_DRV_NAME); 1214