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 /* An empty ELD means no sink is connected; nothing to parse. */ 479 if (hcp->eld[0]) 480 snd_parse_eld(dai->dev, &hcp->eld_parsed, 481 hcp->eld, sizeof(hcp->eld)); 482 else 483 memset(&hcp->eld_parsed, 0, sizeof(hcp->eld_parsed)); 484 485 ret = snd_pcm_hw_constraint_eld(substream->runtime, hcp->eld); 486 if (ret) 487 return ret; 488 489 /* Select chmap supported */ 490 hdmi_codec_eld_chmap(hcp); 491 } 492 493 hcp->busy = true; 494 495 return ret; 496 } 497 498 static void hdmi_codec_shutdown(struct snd_pcm_substream *substream, 499 struct snd_soc_dai *dai) 500 { 501 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 502 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; 503 bool has_capture = !hcp->hcd.no_i2s_capture; 504 bool has_playback = !hcp->hcd.no_i2s_playback; 505 506 if (!((has_playback && tx) || (has_capture && !tx))) 507 return; 508 509 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 510 hcp->hcd.ops->audio_shutdown(dai->dev->parent, hcp->hcd.data); 511 512 guard(mutex)(&hcp->lock); 513 hcp->busy = false; 514 } 515 516 static int hdmi_codec_fill_codec_params(struct snd_soc_dai *dai, 517 unsigned int sample_width, 518 unsigned int sample_rate, 519 unsigned int channels, 520 struct hdmi_codec_params *hp) 521 { 522 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 523 int idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 524 u8 ca_id = 0; 525 bool pcm_audio = !(hcp->iec_status[0] & IEC958_AES0_NONAUDIO); 526 527 if (pcm_audio) { 528 /* Select a channel allocation that matches with ELD and pcm channels */ 529 idx = hdmi_codec_get_ch_alloc_table_idx(hcp, channels); 530 531 if (idx < 0) { 532 dev_err(dai->dev, "Not able to map channels to speakers (%d)\n", 533 idx); 534 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 535 return idx; 536 } 537 538 ca_id = hdmi_codec_channel_alloc[idx].ca_id; 539 } 540 541 memset(hp, 0, sizeof(*hp)); 542 543 hdmi_audio_infoframe_init(&hp->cea); 544 545 if (pcm_audio) 546 hp->cea.channels = channels; 547 else 548 hp->cea.channels = 0; 549 550 hp->cea.coding_type = HDMI_AUDIO_CODING_TYPE_STREAM; 551 hp->cea.sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM; 552 hp->cea.sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM; 553 hp->cea.channel_allocation = ca_id; 554 555 hp->sample_width = sample_width; 556 hp->sample_rate = sample_rate; 557 hp->channels = channels; 558 559 if (pcm_audio) 560 hcp->chmap_idx = ca_id; 561 else 562 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 563 564 return 0; 565 } 566 567 static int hdmi_codec_hw_params(struct snd_pcm_substream *substream, 568 struct snd_pcm_hw_params *params, 569 struct snd_soc_dai *dai) 570 { 571 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 572 struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai); 573 struct hdmi_codec_params hp = { 574 .iec = { 575 .status = { 0 }, 576 .subcode = { 0 }, 577 .pad = 0, 578 .dig_subframe = { 0 }, 579 } 580 }; 581 int ret; 582 583 if (!hcp->hcd.ops->hw_params) 584 return 0; 585 586 dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__, 587 params_width(params), params_rate(params), 588 params_channels(params)); 589 590 ret = hdmi_codec_fill_codec_params(dai, 591 params_width(params), 592 params_rate(params), 593 params_channels(params), 594 &hp); 595 if (ret < 0) 596 return ret; 597 598 memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status)); 599 ret = snd_pcm_fill_iec958_consumer_hw_params(params, hp.iec.status, 600 sizeof(hp.iec.status)); 601 if (ret < 0) { 602 dev_err(dai->dev, "Creating IEC958 channel status failed %d\n", 603 ret); 604 return ret; 605 } 606 607 cf->bit_fmt = params_format(params); 608 return hcp->hcd.ops->hw_params(dai->dev->parent, hcp->hcd.data, 609 cf, &hp); 610 } 611 612 static int hdmi_codec_prepare(struct snd_pcm_substream *substream, 613 struct snd_soc_dai *dai) 614 { 615 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 616 struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai); 617 struct snd_pcm_runtime *runtime = substream->runtime; 618 unsigned int channels = runtime->channels; 619 unsigned int width = snd_pcm_format_width(runtime->format); 620 unsigned int rate = runtime->rate; 621 struct hdmi_codec_params hp; 622 int ret; 623 624 if (!hcp->hcd.ops->prepare) 625 return 0; 626 627 dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__, 628 width, rate, channels); 629 630 ret = hdmi_codec_fill_codec_params(dai, width, rate, channels, &hp); 631 if (ret < 0) 632 return ret; 633 634 memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status)); 635 ret = snd_pcm_fill_iec958_consumer(runtime, hp.iec.status, 636 sizeof(hp.iec.status)); 637 if (ret < 0) { 638 dev_err(dai->dev, "Creating IEC958 channel status failed %d\n", 639 ret); 640 return ret; 641 } 642 643 cf->bit_fmt = runtime->format; 644 return hcp->hcd.ops->prepare(dai->dev->parent, hcp->hcd.data, 645 cf, &hp); 646 } 647 648 static int hdmi_codec_i2s_set_fmt(struct snd_soc_dai *dai, 649 unsigned int fmt) 650 { 651 struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai); 652 653 /* Reset daifmt */ 654 memset(cf, 0, sizeof(*cf)); 655 656 switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { 657 case SND_SOC_DAIFMT_CBP_CFP: 658 cf->bit_clk_provider = 1; 659 cf->frame_clk_provider = 1; 660 break; 661 case SND_SOC_DAIFMT_CBC_CFP: 662 cf->frame_clk_provider = 1; 663 break; 664 case SND_SOC_DAIFMT_CBP_CFC: 665 cf->bit_clk_provider = 1; 666 break; 667 case SND_SOC_DAIFMT_CBC_CFC: 668 break; 669 default: 670 return -EINVAL; 671 } 672 673 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 674 case SND_SOC_DAIFMT_NB_NF: 675 break; 676 case SND_SOC_DAIFMT_NB_IF: 677 cf->frame_clk_inv = 1; 678 break; 679 case SND_SOC_DAIFMT_IB_NF: 680 cf->bit_clk_inv = 1; 681 break; 682 case SND_SOC_DAIFMT_IB_IF: 683 cf->frame_clk_inv = 1; 684 cf->bit_clk_inv = 1; 685 break; 686 } 687 688 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 689 case SND_SOC_DAIFMT_I2S: 690 cf->fmt = HDMI_I2S; 691 break; 692 case SND_SOC_DAIFMT_DSP_A: 693 cf->fmt = HDMI_DSP_A; 694 break; 695 case SND_SOC_DAIFMT_DSP_B: 696 cf->fmt = HDMI_DSP_B; 697 break; 698 case SND_SOC_DAIFMT_RIGHT_J: 699 cf->fmt = HDMI_RIGHT_J; 700 break; 701 case SND_SOC_DAIFMT_LEFT_J: 702 cf->fmt = HDMI_LEFT_J; 703 break; 704 case SND_SOC_DAIFMT_AC97: 705 cf->fmt = HDMI_AC97; 706 break; 707 default: 708 dev_err(dai->dev, "Invalid DAI interface format\n"); 709 return -EINVAL; 710 } 711 712 return 0; 713 } 714 715 static int hdmi_codec_mute(struct snd_soc_dai *dai, int mute, int direction) 716 { 717 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 718 719 /* 720 * ignore if direction was CAPTURE 721 * and it had .no_capture_mute flag 722 * see 723 * snd_soc_dai_digital_mute() 724 */ 725 if (hcp->hcd.ops->mute_stream && 726 (direction == SNDRV_PCM_STREAM_PLAYBACK || 727 !hcp->hcd.no_capture_mute)) 728 return hcp->hcd.ops->mute_stream(dai->dev->parent, 729 hcp->hcd.data, 730 mute, direction); 731 732 return -ENOTSUPP; 733 } 734 735 /* 736 * This driver can select all SND_SOC_DAIFMT_CBx_CFx, 737 * but need to be selected from Sound Card, not be auto selected. 738 * Because it might be used from other driver. 739 * For example, 740 * ${LINUX}/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c 741 */ 742 static const u64 hdmi_codec_formats = 743 SND_SOC_POSSIBLE_DAIFMT_NB_NF | 744 SND_SOC_POSSIBLE_DAIFMT_NB_IF | 745 SND_SOC_POSSIBLE_DAIFMT_IB_NF | 746 SND_SOC_POSSIBLE_DAIFMT_IB_IF | 747 SND_SOC_POSSIBLE_DAIFMT_I2S | 748 SND_SOC_POSSIBLE_DAIFMT_DSP_A | 749 SND_SOC_POSSIBLE_DAIFMT_DSP_B | 750 SND_SOC_POSSIBLE_DAIFMT_RIGHT_J | 751 SND_SOC_POSSIBLE_DAIFMT_LEFT_J | 752 SND_SOC_POSSIBLE_DAIFMT_AC97; 753 754 #define HDMI_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ 755 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\ 756 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\ 757 SNDRV_PCM_RATE_192000) 758 759 #define SPDIF_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 760 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE) 761 762 /* 763 * This list is only for formats allowed on the I2S bus. So there is 764 * some formats listed that are not supported by HDMI interface. For 765 * instance allowing the 32-bit formats enables 24-precision with CPU 766 * DAIs that do not support 24-bit formats. If the extra formats cause 767 * problems, we should add the video side driver an option to disable 768 * them. 769 */ 770 #define I2S_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 771 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE |\ 772 SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE) 773 774 static struct snd_kcontrol_new hdmi_codec_controls[] = { 775 { 776 .access = SNDRV_CTL_ELEM_ACCESS_READ, 777 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 778 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK), 779 .info = hdmi_codec_iec958_info, 780 .get = hdmi_codec_iec958_mask_get, 781 }, 782 { 783 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 784 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT), 785 .info = hdmi_codec_iec958_info, 786 .get = hdmi_codec_iec958_default_get, 787 .put = hdmi_codec_iec958_default_put, 788 }, 789 { 790 .access = (SNDRV_CTL_ELEM_ACCESS_READ | 791 SNDRV_CTL_ELEM_ACCESS_VOLATILE), 792 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 793 .name = "ELD", 794 .info = hdmi_eld_ctl_info, 795 .get = hdmi_eld_ctl_get, 796 }, 797 }; 798 799 static int hdmi_codec_pcm_new(struct snd_soc_pcm_runtime *rtd, 800 struct snd_soc_dai *dai) 801 { 802 struct snd_soc_dai_driver *drv = dai->driver; 803 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 804 unsigned int i; 805 int ret; 806 807 ret = snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK, 808 NULL, drv->playback.channels_max, 0, 809 &hcp->chmap_info); 810 if (ret < 0) 811 return ret; 812 813 /* override handlers */ 814 hcp->chmap_info->private_data = hcp; 815 hcp->chmap_info->kctl->get = hdmi_codec_chmap_ctl_get; 816 817 /* default chmap supported is stereo */ 818 hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps; 819 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 820 821 for (i = 0; i < ARRAY_SIZE(hdmi_codec_controls); i++) { 822 struct snd_kcontrol *kctl; 823 824 /* add ELD ctl with the device number corresponding to the PCM stream */ 825 kctl = snd_ctl_new1(&hdmi_codec_controls[i], dai->component); 826 if (!kctl) 827 return -ENOMEM; 828 829 kctl->id.device = rtd->pcm->device; 830 ret = snd_ctl_add(rtd->card->snd_card, kctl); 831 if (ret < 0) 832 return ret; 833 } 834 835 return 0; 836 } 837 838 #ifdef CONFIG_SND_PROC_FS 839 static void print_eld_info(struct snd_info_entry *entry, 840 struct snd_info_buffer *buffer) 841 { 842 struct hdmi_codec_priv *hcp = entry->private_data; 843 844 snd_print_eld_info(&hcp->eld_parsed, buffer); 845 } 846 847 static int hdmi_dai_proc_new(struct hdmi_codec_priv *hcp, 848 struct snd_soc_dai *dai) 849 { 850 struct snd_soc_component *component = dai->component; 851 struct snd_soc_card *card = component->card; 852 struct snd_soc_dai *d; 853 struct snd_soc_pcm_runtime *rtd; 854 struct snd_info_entry *entry; 855 char name[32]; 856 int err, i, id = 0; 857 858 /* 859 * To avoid duplicate proc entry, find its rtd and use rtd->id 860 * instead of dai->id 861 */ 862 for_each_card_rtds(card, rtd) { 863 for_each_rtd_dais(rtd, i, d) 864 if (d == dai) { 865 id = rtd->id; 866 goto found; 867 } 868 } 869 found: 870 snprintf(name, sizeof(name), "eld#%d", id); 871 err = snd_card_proc_new(card->snd_card, name, &entry); 872 if (err < 0) 873 return err; 874 875 snd_info_set_text_ops(entry, hcp, print_eld_info); 876 hcp->proc_entry = entry; 877 878 return 0; 879 } 880 881 static void hdmi_dai_proc_free(struct hdmi_codec_priv *hcp) 882 { 883 snd_info_free_entry(hcp->proc_entry); 884 hcp->proc_entry = NULL; 885 } 886 #else 887 static int hdmi_dai_proc_new(struct hdmi_codec_priv *hcp, 888 struct snd_soc_dai *dai) 889 { 890 return 0; 891 } 892 893 static void hdmi_dai_proc_free(struct hdmi_codec_priv *hcp) 894 { 895 } 896 #endif 897 898 static int hdmi_dai_probe(struct snd_soc_dai *dai) 899 { 900 struct hdmi_codec_priv *hcp = 901 snd_soc_component_get_drvdata(dai->component); 902 struct snd_soc_dapm_context *dapm; 903 struct hdmi_codec_daifmt *daifmt; 904 struct snd_soc_dapm_route route[] = { 905 { 906 .sink = "TX", 907 .source = dai->driver->playback.stream_name, 908 }, 909 { 910 .sink = dai->driver->capture.stream_name, 911 .source = "RX", 912 }, 913 }; 914 int ret, i; 915 916 dapm = snd_soc_component_to_dapm(dai->component); 917 918 /* One of the directions might be omitted for unidirectional DAIs */ 919 for (i = 0; i < ARRAY_SIZE(route); i++) { 920 if (!route[i].source || !route[i].sink) 921 continue; 922 923 ret = snd_soc_dapm_add_routes(dapm, &route[i], 1); 924 if (ret) 925 return ret; 926 } 927 928 daifmt = devm_kzalloc(dai->dev, sizeof(*daifmt), GFP_KERNEL); 929 if (!daifmt) 930 return -ENOMEM; 931 932 snd_soc_dai_dma_data_set_playback(dai, daifmt); 933 934 return hdmi_dai_proc_new(hcp, dai); 935 } 936 937 static int hdmi_dai_remove(struct snd_soc_dai *dai) 938 { 939 struct hdmi_codec_priv *hcp = 940 snd_soc_component_get_drvdata(dai->component); 941 942 hdmi_dai_proc_free(hcp); 943 return 0; 944 } 945 946 static void hdmi_codec_jack_report(struct hdmi_codec_priv *hcp, 947 unsigned int jack_status) 948 { 949 if (jack_status != hcp->jack_status) { 950 if (hcp->jack) 951 snd_soc_jack_report(hcp->jack, jack_status, SND_JACK_AVOUT); 952 hcp->jack_status = jack_status; 953 } 954 } 955 956 static void plugged_cb(struct device *dev, bool plugged) 957 { 958 struct hdmi_codec_priv *hcp = dev_get_drvdata(dev); 959 int ret; 960 961 if (plugged) { 962 if (hcp->hcd.ops->get_eld) { 963 hcp->hcd.ops->get_eld(dev->parent, hcp->hcd.data, 964 hcp->eld, sizeof(hcp->eld)); 965 ret = snd_parse_eld(dev, &hcp->eld_parsed, 966 hcp->eld, sizeof(hcp->eld)); 967 if (ret < 0) 968 dev_dbg(dev, "Failed to parse ELD: %d\n", ret); 969 else 970 snd_show_eld(dev, &hcp->eld_parsed); 971 } 972 hdmi_codec_jack_report(hcp, SND_JACK_AVOUT); 973 } else { 974 hdmi_codec_jack_report(hcp, 0); 975 memset(hcp->eld, 0, sizeof(hcp->eld)); 976 } 977 } 978 979 static int hdmi_codec_set_jack(struct snd_soc_component *component, 980 struct snd_soc_jack *jack, 981 void *data) 982 { 983 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 984 985 if (hcp->hcd.ops->hook_plugged_cb) { 986 hcp->jack = jack; 987 988 /* 989 * Report the initial jack status which may have been provided 990 * by the parent hdmi driver while the hpd hook was registered. 991 */ 992 snd_soc_jack_report(jack, hcp->jack_status, SND_JACK_AVOUT); 993 994 return 0; 995 } 996 997 return -ENOTSUPP; 998 } 999 1000 static int hdmi_dai_spdif_probe(struct snd_soc_dai *dai) 1001 { 1002 struct hdmi_codec_daifmt *cf; 1003 int ret; 1004 1005 ret = hdmi_dai_probe(dai); 1006 if (ret) 1007 return ret; 1008 1009 cf = snd_soc_dai_dma_data_get_playback(dai); 1010 cf->fmt = HDMI_SPDIF; 1011 1012 return 0; 1013 } 1014 1015 static const struct snd_soc_dai_ops hdmi_codec_i2s_dai_ops = { 1016 .probe = hdmi_dai_probe, 1017 .remove = hdmi_dai_remove, 1018 .startup = hdmi_codec_startup, 1019 .shutdown = hdmi_codec_shutdown, 1020 .hw_params = hdmi_codec_hw_params, 1021 .prepare = hdmi_codec_prepare, 1022 .set_fmt = hdmi_codec_i2s_set_fmt, 1023 .mute_stream = hdmi_codec_mute, 1024 .pcm_new = hdmi_codec_pcm_new, 1025 .auto_selectable_formats = &hdmi_codec_formats, 1026 .num_auto_selectable_formats = 1, 1027 }; 1028 1029 static const struct snd_soc_dai_ops hdmi_codec_spdif_dai_ops = { 1030 .probe = hdmi_dai_spdif_probe, 1031 .startup = hdmi_codec_startup, 1032 .shutdown = hdmi_codec_shutdown, 1033 .hw_params = hdmi_codec_hw_params, 1034 .prepare = hdmi_codec_prepare, 1035 .mute_stream = hdmi_codec_mute, 1036 .pcm_new = hdmi_codec_pcm_new, 1037 }; 1038 1039 static const struct snd_soc_dai_driver hdmi_i2s_dai = { 1040 .name = "i2s-hifi", 1041 .id = DAI_ID_I2S, 1042 .playback = { 1043 .stream_name = "I2S Playback", 1044 .channels_min = 2, 1045 .channels_max = 8, 1046 .rates = HDMI_RATES, 1047 .formats = I2S_FORMATS, 1048 .sig_bits = 24, 1049 }, 1050 .capture = { 1051 .stream_name = "Capture", 1052 .channels_min = 2, 1053 .channels_max = 8, 1054 .rates = HDMI_RATES, 1055 .formats = I2S_FORMATS, 1056 .sig_bits = 24, 1057 }, 1058 .ops = &hdmi_codec_i2s_dai_ops, 1059 }; 1060 1061 static const struct snd_soc_dai_driver hdmi_spdif_dai = { 1062 .name = "spdif-hifi", 1063 .id = DAI_ID_SPDIF, 1064 .playback = { 1065 .stream_name = "SPDIF Playback", 1066 .channels_min = 2, 1067 .channels_max = 2, 1068 .rates = HDMI_RATES, 1069 .formats = SPDIF_FORMATS, 1070 }, 1071 .capture = { 1072 .stream_name = "Capture", 1073 .channels_min = 2, 1074 .channels_max = 2, 1075 .rates = HDMI_RATES, 1076 .formats = SPDIF_FORMATS, 1077 }, 1078 .ops = &hdmi_codec_spdif_dai_ops, 1079 }; 1080 1081 static int hdmi_of_xlate_dai_id(struct snd_soc_component *component, 1082 struct device_node *endpoint) 1083 { 1084 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 1085 int ret = -ENOTSUPP; /* see snd_soc_get_dai_id() */ 1086 1087 if (hcp->hcd.ops->get_dai_id) 1088 ret = hcp->hcd.ops->get_dai_id(component, endpoint, hcp->hcd.data); 1089 1090 return ret; 1091 } 1092 1093 static int hdmi_probe(struct snd_soc_component *component) 1094 { 1095 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 1096 int ret = 0; 1097 1098 if (hcp->hcd.ops->hook_plugged_cb) { 1099 ret = hcp->hcd.ops->hook_plugged_cb(component->dev->parent, 1100 hcp->hcd.data, 1101 plugged_cb, 1102 component->dev); 1103 } 1104 1105 return ret; 1106 } 1107 1108 static void hdmi_remove(struct snd_soc_component *component) 1109 { 1110 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 1111 1112 if (hcp->hcd.ops->hook_plugged_cb) 1113 hcp->hcd.ops->hook_plugged_cb(component->dev->parent, 1114 hcp->hcd.data, NULL, NULL); 1115 } 1116 1117 static const struct snd_soc_component_driver hdmi_driver = { 1118 .probe = hdmi_probe, 1119 .remove = hdmi_remove, 1120 .dapm_widgets = hdmi_widgets, 1121 .num_dapm_widgets = ARRAY_SIZE(hdmi_widgets), 1122 .of_xlate_dai_id = hdmi_of_xlate_dai_id, 1123 .idle_bias_on = 1, 1124 .use_pmdown_time = 1, 1125 .endianness = 1, 1126 .set_jack = hdmi_codec_set_jack, 1127 }; 1128 1129 static int hdmi_codec_probe(struct platform_device *pdev) 1130 { 1131 struct hdmi_codec_pdata *hcd = pdev->dev.platform_data; 1132 struct snd_soc_dai_driver *daidrv; 1133 struct device *dev = &pdev->dev; 1134 struct hdmi_codec_priv *hcp; 1135 int dai_count, i = 0; 1136 int ret; 1137 1138 if (!hcd) { 1139 dev_err(dev, "%s: No platform data\n", __func__); 1140 return -EINVAL; 1141 } 1142 1143 dai_count = hcd->i2s + hcd->spdif; 1144 if (dai_count < 1 || !hcd->ops || 1145 (!hcd->ops->hw_params && !hcd->ops->prepare) || 1146 !hcd->ops->audio_shutdown) { 1147 dev_err(dev, "%s: Invalid parameters\n", __func__); 1148 return -EINVAL; 1149 } 1150 1151 hcp = devm_kzalloc(dev, sizeof(*hcp), GFP_KERNEL); 1152 if (!hcp) 1153 return -ENOMEM; 1154 1155 hcp->hcd = *hcd; 1156 mutex_init(&hcp->lock); 1157 1158 ret = snd_pcm_create_iec958_consumer_default(hcp->iec_status, 1159 sizeof(hcp->iec_status)); 1160 if (ret < 0) 1161 return ret; 1162 1163 daidrv = devm_kcalloc(dev, dai_count, sizeof(*daidrv), GFP_KERNEL); 1164 if (!daidrv) 1165 return -ENOMEM; 1166 1167 if (hcd->i2s) { 1168 daidrv[i] = hdmi_i2s_dai; 1169 daidrv[i].playback.channels_max = hcd->max_i2s_channels; 1170 if (hcd->i2s_formats) { 1171 daidrv[i].playback.formats = hcd->i2s_formats; 1172 daidrv[i].capture.formats = hcd->i2s_formats; 1173 } 1174 if (hcd->no_i2s_playback) 1175 memset(&daidrv[i].playback, 0, 1176 sizeof(daidrv[i].playback)); 1177 if (hcd->no_i2s_capture) 1178 memset(&daidrv[i].capture, 0, 1179 sizeof(daidrv[i].capture)); 1180 i++; 1181 } 1182 1183 if (hcd->spdif) { 1184 daidrv[i] = hdmi_spdif_dai; 1185 if (hcd->no_spdif_playback) 1186 memset(&daidrv[i].playback, 0, 1187 sizeof(daidrv[i].playback)); 1188 if (hcd->no_spdif_capture) 1189 memset(&daidrv[i].capture, 0, 1190 sizeof(daidrv[i].capture)); 1191 } 1192 1193 dev_set_drvdata(dev, hcp); 1194 1195 ret = devm_snd_soc_register_component(dev, &hdmi_driver, daidrv, 1196 dai_count); 1197 if (ret) { 1198 dev_err(dev, "%s: snd_soc_register_component() failed (%d)\n", 1199 __func__, ret); 1200 return ret; 1201 } 1202 return 0; 1203 } 1204 1205 static struct platform_driver hdmi_codec_driver = { 1206 .driver = { 1207 .name = HDMI_CODEC_DRV_NAME, 1208 }, 1209 .probe = hdmi_codec_probe, 1210 }; 1211 1212 module_platform_driver(hdmi_codec_driver); 1213 1214 MODULE_AUTHOR("Jyri Sarha <jsarha@ti.com>"); 1215 MODULE_DESCRIPTION("HDMI Audio Codec Driver"); 1216 MODULE_LICENSE("GPL"); 1217 MODULE_ALIAS("platform:" HDMI_CODEC_DRV_NAME); 1218