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 memcpy(hcp->iec_status, ucontrol->value.iec958.status, 430 sizeof(hcp->iec_status)); 431 432 return 0; 433 } 434 435 static int hdmi_codec_iec958_mask_get(struct snd_kcontrol *kcontrol, 436 struct snd_ctl_elem_value *ucontrol) 437 { 438 memset(ucontrol->value.iec958.status, 0xff, 439 sizeof_field(struct hdmi_codec_priv, iec_status)); 440 441 return 0; 442 } 443 444 static int hdmi_codec_startup(struct snd_pcm_substream *substream, 445 struct snd_soc_dai *dai) 446 { 447 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 448 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; 449 bool has_capture = !hcp->hcd.no_i2s_capture; 450 bool has_playback = !hcp->hcd.no_i2s_playback; 451 int ret = 0; 452 453 if (!((has_playback && tx) || (has_capture && !tx))) 454 return 0; 455 456 guard(mutex)(&hcp->lock); 457 if (hcp->busy) { 458 dev_err(dai->dev, "Only one simultaneous stream supported!\n"); 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 return ret; 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 return ret; 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 return ret; 480 481 /* Select chmap supported */ 482 hdmi_codec_eld_chmap(hcp); 483 } 484 485 hcp->busy = true; 486 487 return ret; 488 } 489 490 static void hdmi_codec_shutdown(struct snd_pcm_substream *substream, 491 struct snd_soc_dai *dai) 492 { 493 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 494 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; 495 bool has_capture = !hcp->hcd.no_i2s_capture; 496 bool has_playback = !hcp->hcd.no_i2s_playback; 497 498 if (!((has_playback && tx) || (has_capture && !tx))) 499 return; 500 501 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 502 hcp->hcd.ops->audio_shutdown(dai->dev->parent, hcp->hcd.data); 503 504 guard(mutex)(&hcp->lock); 505 hcp->busy = false; 506 } 507 508 static int hdmi_codec_fill_codec_params(struct snd_soc_dai *dai, 509 unsigned int sample_width, 510 unsigned int sample_rate, 511 unsigned int channels, 512 struct hdmi_codec_params *hp) 513 { 514 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 515 int idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 516 u8 ca_id = 0; 517 bool pcm_audio = !(hcp->iec_status[0] & IEC958_AES0_NONAUDIO); 518 519 if (pcm_audio) { 520 /* Select a channel allocation that matches with ELD and pcm channels */ 521 idx = hdmi_codec_get_ch_alloc_table_idx(hcp, channels); 522 523 if (idx < 0) { 524 dev_err(dai->dev, "Not able to map channels to speakers (%d)\n", 525 idx); 526 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 527 return idx; 528 } 529 530 ca_id = hdmi_codec_channel_alloc[idx].ca_id; 531 } 532 533 memset(hp, 0, sizeof(*hp)); 534 535 hdmi_audio_infoframe_init(&hp->cea); 536 537 if (pcm_audio) 538 hp->cea.channels = channels; 539 else 540 hp->cea.channels = 0; 541 542 hp->cea.coding_type = HDMI_AUDIO_CODING_TYPE_STREAM; 543 hp->cea.sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM; 544 hp->cea.sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM; 545 hp->cea.channel_allocation = ca_id; 546 547 hp->sample_width = sample_width; 548 hp->sample_rate = sample_rate; 549 hp->channels = channels; 550 551 if (pcm_audio) 552 hcp->chmap_idx = ca_id; 553 else 554 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 555 556 return 0; 557 } 558 559 static int hdmi_codec_hw_params(struct snd_pcm_substream *substream, 560 struct snd_pcm_hw_params *params, 561 struct snd_soc_dai *dai) 562 { 563 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 564 struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai); 565 struct hdmi_codec_params hp = { 566 .iec = { 567 .status = { 0 }, 568 .subcode = { 0 }, 569 .pad = 0, 570 .dig_subframe = { 0 }, 571 } 572 }; 573 int ret; 574 575 if (!hcp->hcd.ops->hw_params) 576 return 0; 577 578 dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__, 579 params_width(params), params_rate(params), 580 params_channels(params)); 581 582 ret = hdmi_codec_fill_codec_params(dai, 583 params_width(params), 584 params_rate(params), 585 params_channels(params), 586 &hp); 587 if (ret < 0) 588 return ret; 589 590 memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status)); 591 ret = snd_pcm_fill_iec958_consumer_hw_params(params, hp.iec.status, 592 sizeof(hp.iec.status)); 593 if (ret < 0) { 594 dev_err(dai->dev, "Creating IEC958 channel status failed %d\n", 595 ret); 596 return ret; 597 } 598 599 cf->bit_fmt = params_format(params); 600 return hcp->hcd.ops->hw_params(dai->dev->parent, hcp->hcd.data, 601 cf, &hp); 602 } 603 604 static int hdmi_codec_prepare(struct snd_pcm_substream *substream, 605 struct snd_soc_dai *dai) 606 { 607 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 608 struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai); 609 struct snd_pcm_runtime *runtime = substream->runtime; 610 unsigned int channels = runtime->channels; 611 unsigned int width = snd_pcm_format_width(runtime->format); 612 unsigned int rate = runtime->rate; 613 struct hdmi_codec_params hp; 614 int ret; 615 616 if (!hcp->hcd.ops->prepare) 617 return 0; 618 619 dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__, 620 width, rate, channels); 621 622 ret = hdmi_codec_fill_codec_params(dai, width, rate, channels, &hp); 623 if (ret < 0) 624 return ret; 625 626 memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status)); 627 ret = snd_pcm_fill_iec958_consumer(runtime, hp.iec.status, 628 sizeof(hp.iec.status)); 629 if (ret < 0) { 630 dev_err(dai->dev, "Creating IEC958 channel status failed %d\n", 631 ret); 632 return ret; 633 } 634 635 cf->bit_fmt = runtime->format; 636 return hcp->hcd.ops->prepare(dai->dev->parent, hcp->hcd.data, 637 cf, &hp); 638 } 639 640 static int hdmi_codec_i2s_set_fmt(struct snd_soc_dai *dai, 641 unsigned int fmt) 642 { 643 struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai); 644 645 /* Reset daifmt */ 646 memset(cf, 0, sizeof(*cf)); 647 648 switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { 649 case SND_SOC_DAIFMT_CBP_CFP: 650 cf->bit_clk_provider = 1; 651 cf->frame_clk_provider = 1; 652 break; 653 case SND_SOC_DAIFMT_CBC_CFP: 654 cf->frame_clk_provider = 1; 655 break; 656 case SND_SOC_DAIFMT_CBP_CFC: 657 cf->bit_clk_provider = 1; 658 break; 659 case SND_SOC_DAIFMT_CBC_CFC: 660 break; 661 default: 662 return -EINVAL; 663 } 664 665 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 666 case SND_SOC_DAIFMT_NB_NF: 667 break; 668 case SND_SOC_DAIFMT_NB_IF: 669 cf->frame_clk_inv = 1; 670 break; 671 case SND_SOC_DAIFMT_IB_NF: 672 cf->bit_clk_inv = 1; 673 break; 674 case SND_SOC_DAIFMT_IB_IF: 675 cf->frame_clk_inv = 1; 676 cf->bit_clk_inv = 1; 677 break; 678 } 679 680 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 681 case SND_SOC_DAIFMT_I2S: 682 cf->fmt = HDMI_I2S; 683 break; 684 case SND_SOC_DAIFMT_DSP_A: 685 cf->fmt = HDMI_DSP_A; 686 break; 687 case SND_SOC_DAIFMT_DSP_B: 688 cf->fmt = HDMI_DSP_B; 689 break; 690 case SND_SOC_DAIFMT_RIGHT_J: 691 cf->fmt = HDMI_RIGHT_J; 692 break; 693 case SND_SOC_DAIFMT_LEFT_J: 694 cf->fmt = HDMI_LEFT_J; 695 break; 696 case SND_SOC_DAIFMT_AC97: 697 cf->fmt = HDMI_AC97; 698 break; 699 default: 700 dev_err(dai->dev, "Invalid DAI interface format\n"); 701 return -EINVAL; 702 } 703 704 return 0; 705 } 706 707 static int hdmi_codec_mute(struct snd_soc_dai *dai, int mute, int direction) 708 { 709 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 710 711 /* 712 * ignore if direction was CAPTURE 713 * and it had .no_capture_mute flag 714 * see 715 * snd_soc_dai_digital_mute() 716 */ 717 if (hcp->hcd.ops->mute_stream && 718 (direction == SNDRV_PCM_STREAM_PLAYBACK || 719 !hcp->hcd.no_capture_mute)) 720 return hcp->hcd.ops->mute_stream(dai->dev->parent, 721 hcp->hcd.data, 722 mute, direction); 723 724 return -ENOTSUPP; 725 } 726 727 /* 728 * This driver can select all SND_SOC_DAIFMT_CBx_CFx, 729 * but need to be selected from Sound Card, not be auto selected. 730 * Because it might be used from other driver. 731 * For example, 732 * ${LINUX}/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c 733 */ 734 static const u64 hdmi_codec_formats = 735 SND_SOC_POSSIBLE_DAIFMT_NB_NF | 736 SND_SOC_POSSIBLE_DAIFMT_NB_IF | 737 SND_SOC_POSSIBLE_DAIFMT_IB_NF | 738 SND_SOC_POSSIBLE_DAIFMT_IB_IF | 739 SND_SOC_POSSIBLE_DAIFMT_I2S | 740 SND_SOC_POSSIBLE_DAIFMT_DSP_A | 741 SND_SOC_POSSIBLE_DAIFMT_DSP_B | 742 SND_SOC_POSSIBLE_DAIFMT_RIGHT_J | 743 SND_SOC_POSSIBLE_DAIFMT_LEFT_J | 744 SND_SOC_POSSIBLE_DAIFMT_AC97; 745 746 #define HDMI_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ 747 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\ 748 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\ 749 SNDRV_PCM_RATE_192000) 750 751 #define SPDIF_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 752 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE) 753 754 /* 755 * This list is only for formats allowed on the I2S bus. So there is 756 * some formats listed that are not supported by HDMI interface. For 757 * instance allowing the 32-bit formats enables 24-precision with CPU 758 * DAIs that do not support 24-bit formats. If the extra formats cause 759 * problems, we should add the video side driver an option to disable 760 * them. 761 */ 762 #define I2S_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 763 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE |\ 764 SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE) 765 766 static struct snd_kcontrol_new hdmi_codec_controls[] = { 767 { 768 .access = SNDRV_CTL_ELEM_ACCESS_READ, 769 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 770 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK), 771 .info = hdmi_codec_iec958_info, 772 .get = hdmi_codec_iec958_mask_get, 773 }, 774 { 775 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 776 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT), 777 .info = hdmi_codec_iec958_info, 778 .get = hdmi_codec_iec958_default_get, 779 .put = hdmi_codec_iec958_default_put, 780 }, 781 { 782 .access = (SNDRV_CTL_ELEM_ACCESS_READ | 783 SNDRV_CTL_ELEM_ACCESS_VOLATILE), 784 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 785 .name = "ELD", 786 .info = hdmi_eld_ctl_info, 787 .get = hdmi_eld_ctl_get, 788 }, 789 }; 790 791 static int hdmi_codec_pcm_new(struct snd_soc_pcm_runtime *rtd, 792 struct snd_soc_dai *dai) 793 { 794 struct snd_soc_dai_driver *drv = dai->driver; 795 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 796 unsigned int i; 797 int ret; 798 799 ret = snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK, 800 NULL, drv->playback.channels_max, 0, 801 &hcp->chmap_info); 802 if (ret < 0) 803 return ret; 804 805 /* override handlers */ 806 hcp->chmap_info->private_data = hcp; 807 hcp->chmap_info->kctl->get = hdmi_codec_chmap_ctl_get; 808 809 /* default chmap supported is stereo */ 810 hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps; 811 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 812 813 for (i = 0; i < ARRAY_SIZE(hdmi_codec_controls); i++) { 814 struct snd_kcontrol *kctl; 815 816 /* add ELD ctl with the device number corresponding to the PCM stream */ 817 kctl = snd_ctl_new1(&hdmi_codec_controls[i], dai->component); 818 if (!kctl) 819 return -ENOMEM; 820 821 kctl->id.device = rtd->pcm->device; 822 ret = snd_ctl_add(rtd->card->snd_card, kctl); 823 if (ret < 0) 824 return ret; 825 } 826 827 return 0; 828 } 829 830 #ifdef CONFIG_SND_PROC_FS 831 static void print_eld_info(struct snd_info_entry *entry, 832 struct snd_info_buffer *buffer) 833 { 834 struct hdmi_codec_priv *hcp = entry->private_data; 835 836 snd_print_eld_info(&hcp->eld_parsed, buffer); 837 } 838 839 static int hdmi_dai_proc_new(struct hdmi_codec_priv *hcp, 840 struct snd_soc_dai *dai) 841 { 842 struct snd_soc_component *component = dai->component; 843 struct snd_soc_card *card = component->card; 844 struct snd_soc_dai *d; 845 struct snd_soc_pcm_runtime *rtd; 846 struct snd_info_entry *entry; 847 char name[32]; 848 int err, i, id = 0; 849 850 /* 851 * To avoid duplicate proc entry, find its rtd and use rtd->id 852 * instead of dai->id 853 */ 854 for_each_card_rtds(card, rtd) { 855 for_each_rtd_dais(rtd, i, d) 856 if (d == dai) { 857 id = rtd->id; 858 goto found; 859 } 860 } 861 found: 862 snprintf(name, sizeof(name), "eld#%d", id); 863 err = snd_card_proc_new(card->snd_card, name, &entry); 864 if (err < 0) 865 return err; 866 867 snd_info_set_text_ops(entry, hcp, print_eld_info); 868 hcp->proc_entry = entry; 869 870 return 0; 871 } 872 873 static void hdmi_dai_proc_free(struct hdmi_codec_priv *hcp) 874 { 875 snd_info_free_entry(hcp->proc_entry); 876 hcp->proc_entry = NULL; 877 } 878 #else 879 static int hdmi_dai_proc_new(struct hdmi_codec_priv *hcp, 880 struct snd_soc_dai *dai) 881 { 882 return 0; 883 } 884 885 static void hdmi_dai_proc_free(struct hdmi_codec_priv *hcp) 886 { 887 } 888 #endif 889 890 static int hdmi_dai_probe(struct snd_soc_dai *dai) 891 { 892 struct hdmi_codec_priv *hcp = 893 snd_soc_component_get_drvdata(dai->component); 894 struct snd_soc_dapm_context *dapm; 895 struct hdmi_codec_daifmt *daifmt; 896 struct snd_soc_dapm_route route[] = { 897 { 898 .sink = "TX", 899 .source = dai->driver->playback.stream_name, 900 }, 901 { 902 .sink = dai->driver->capture.stream_name, 903 .source = "RX", 904 }, 905 }; 906 int ret, i; 907 908 dapm = snd_soc_component_to_dapm(dai->component); 909 910 /* One of the directions might be omitted for unidirectional DAIs */ 911 for (i = 0; i < ARRAY_SIZE(route); i++) { 912 if (!route[i].source || !route[i].sink) 913 continue; 914 915 ret = snd_soc_dapm_add_routes(dapm, &route[i], 1); 916 if (ret) 917 return ret; 918 } 919 920 daifmt = devm_kzalloc(dai->dev, sizeof(*daifmt), GFP_KERNEL); 921 if (!daifmt) 922 return -ENOMEM; 923 924 snd_soc_dai_dma_data_set_playback(dai, daifmt); 925 926 return hdmi_dai_proc_new(hcp, dai); 927 } 928 929 static int hdmi_dai_remove(struct snd_soc_dai *dai) 930 { 931 struct hdmi_codec_priv *hcp = 932 snd_soc_component_get_drvdata(dai->component); 933 934 hdmi_dai_proc_free(hcp); 935 return 0; 936 } 937 938 static void hdmi_codec_jack_report(struct hdmi_codec_priv *hcp, 939 unsigned int jack_status) 940 { 941 if (jack_status != hcp->jack_status) { 942 if (hcp->jack) 943 snd_soc_jack_report(hcp->jack, jack_status, SND_JACK_AVOUT); 944 hcp->jack_status = jack_status; 945 } 946 } 947 948 static void plugged_cb(struct device *dev, bool plugged) 949 { 950 struct hdmi_codec_priv *hcp = dev_get_drvdata(dev); 951 int ret; 952 953 if (plugged) { 954 if (hcp->hcd.ops->get_eld) { 955 hcp->hcd.ops->get_eld(dev->parent, hcp->hcd.data, 956 hcp->eld, sizeof(hcp->eld)); 957 ret = snd_parse_eld(dev, &hcp->eld_parsed, 958 hcp->eld, sizeof(hcp->eld)); 959 if (ret < 0) 960 dev_dbg(dev, "Failed to parse ELD: %d\n", ret); 961 else 962 snd_show_eld(dev, &hcp->eld_parsed); 963 } 964 hdmi_codec_jack_report(hcp, SND_JACK_AVOUT); 965 } else { 966 hdmi_codec_jack_report(hcp, 0); 967 memset(hcp->eld, 0, sizeof(hcp->eld)); 968 } 969 } 970 971 static int hdmi_codec_set_jack(struct snd_soc_component *component, 972 struct snd_soc_jack *jack, 973 void *data) 974 { 975 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 976 977 if (hcp->hcd.ops->hook_plugged_cb) { 978 hcp->jack = jack; 979 980 /* 981 * Report the initial jack status which may have been provided 982 * by the parent hdmi driver while the hpd hook was registered. 983 */ 984 snd_soc_jack_report(jack, hcp->jack_status, SND_JACK_AVOUT); 985 986 return 0; 987 } 988 989 return -ENOTSUPP; 990 } 991 992 static int hdmi_dai_spdif_probe(struct snd_soc_dai *dai) 993 { 994 struct hdmi_codec_daifmt *cf; 995 int ret; 996 997 ret = hdmi_dai_probe(dai); 998 if (ret) 999 return ret; 1000 1001 cf = snd_soc_dai_dma_data_get_playback(dai); 1002 cf->fmt = HDMI_SPDIF; 1003 1004 return 0; 1005 } 1006 1007 static const struct snd_soc_dai_ops hdmi_codec_i2s_dai_ops = { 1008 .probe = hdmi_dai_probe, 1009 .remove = hdmi_dai_remove, 1010 .startup = hdmi_codec_startup, 1011 .shutdown = hdmi_codec_shutdown, 1012 .hw_params = hdmi_codec_hw_params, 1013 .prepare = hdmi_codec_prepare, 1014 .set_fmt = hdmi_codec_i2s_set_fmt, 1015 .mute_stream = hdmi_codec_mute, 1016 .pcm_new = hdmi_codec_pcm_new, 1017 .auto_selectable_formats = &hdmi_codec_formats, 1018 .num_auto_selectable_formats = 1, 1019 }; 1020 1021 static const struct snd_soc_dai_ops hdmi_codec_spdif_dai_ops = { 1022 .probe = hdmi_dai_spdif_probe, 1023 .startup = hdmi_codec_startup, 1024 .shutdown = hdmi_codec_shutdown, 1025 .hw_params = hdmi_codec_hw_params, 1026 .prepare = hdmi_codec_prepare, 1027 .mute_stream = hdmi_codec_mute, 1028 .pcm_new = hdmi_codec_pcm_new, 1029 }; 1030 1031 static const struct snd_soc_dai_driver hdmi_i2s_dai = { 1032 .name = "i2s-hifi", 1033 .id = DAI_ID_I2S, 1034 .playback = { 1035 .stream_name = "I2S Playback", 1036 .channels_min = 2, 1037 .channels_max = 8, 1038 .rates = HDMI_RATES, 1039 .formats = I2S_FORMATS, 1040 .sig_bits = 24, 1041 }, 1042 .capture = { 1043 .stream_name = "Capture", 1044 .channels_min = 2, 1045 .channels_max = 8, 1046 .rates = HDMI_RATES, 1047 .formats = I2S_FORMATS, 1048 .sig_bits = 24, 1049 }, 1050 .ops = &hdmi_codec_i2s_dai_ops, 1051 }; 1052 1053 static const struct snd_soc_dai_driver hdmi_spdif_dai = { 1054 .name = "spdif-hifi", 1055 .id = DAI_ID_SPDIF, 1056 .playback = { 1057 .stream_name = "SPDIF Playback", 1058 .channels_min = 2, 1059 .channels_max = 2, 1060 .rates = HDMI_RATES, 1061 .formats = SPDIF_FORMATS, 1062 }, 1063 .capture = { 1064 .stream_name = "Capture", 1065 .channels_min = 2, 1066 .channels_max = 2, 1067 .rates = HDMI_RATES, 1068 .formats = SPDIF_FORMATS, 1069 }, 1070 .ops = &hdmi_codec_spdif_dai_ops, 1071 }; 1072 1073 static int hdmi_of_xlate_dai_id(struct snd_soc_component *component, 1074 struct device_node *endpoint) 1075 { 1076 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 1077 int ret = -ENOTSUPP; /* see snd_soc_get_dai_id() */ 1078 1079 if (hcp->hcd.ops->get_dai_id) 1080 ret = hcp->hcd.ops->get_dai_id(component, endpoint, hcp->hcd.data); 1081 1082 return ret; 1083 } 1084 1085 static int hdmi_probe(struct snd_soc_component *component) 1086 { 1087 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 1088 int ret = 0; 1089 1090 if (hcp->hcd.ops->hook_plugged_cb) { 1091 ret = hcp->hcd.ops->hook_plugged_cb(component->dev->parent, 1092 hcp->hcd.data, 1093 plugged_cb, 1094 component->dev); 1095 } 1096 1097 return ret; 1098 } 1099 1100 static void hdmi_remove(struct snd_soc_component *component) 1101 { 1102 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 1103 1104 if (hcp->hcd.ops->hook_plugged_cb) 1105 hcp->hcd.ops->hook_plugged_cb(component->dev->parent, 1106 hcp->hcd.data, NULL, NULL); 1107 } 1108 1109 static const struct snd_soc_component_driver hdmi_driver = { 1110 .probe = hdmi_probe, 1111 .remove = hdmi_remove, 1112 .dapm_widgets = hdmi_widgets, 1113 .num_dapm_widgets = ARRAY_SIZE(hdmi_widgets), 1114 .of_xlate_dai_id = hdmi_of_xlate_dai_id, 1115 .idle_bias_on = 1, 1116 .use_pmdown_time = 1, 1117 .endianness = 1, 1118 .set_jack = hdmi_codec_set_jack, 1119 }; 1120 1121 static int hdmi_codec_probe(struct platform_device *pdev) 1122 { 1123 struct hdmi_codec_pdata *hcd = pdev->dev.platform_data; 1124 struct snd_soc_dai_driver *daidrv; 1125 struct device *dev = &pdev->dev; 1126 struct hdmi_codec_priv *hcp; 1127 int dai_count, i = 0; 1128 int ret; 1129 1130 if (!hcd) { 1131 dev_err(dev, "%s: No platform data\n", __func__); 1132 return -EINVAL; 1133 } 1134 1135 dai_count = hcd->i2s + hcd->spdif; 1136 if (dai_count < 1 || !hcd->ops || 1137 (!hcd->ops->hw_params && !hcd->ops->prepare) || 1138 !hcd->ops->audio_shutdown) { 1139 dev_err(dev, "%s: Invalid parameters\n", __func__); 1140 return -EINVAL; 1141 } 1142 1143 hcp = devm_kzalloc(dev, sizeof(*hcp), GFP_KERNEL); 1144 if (!hcp) 1145 return -ENOMEM; 1146 1147 hcp->hcd = *hcd; 1148 mutex_init(&hcp->lock); 1149 1150 ret = snd_pcm_create_iec958_consumer_default(hcp->iec_status, 1151 sizeof(hcp->iec_status)); 1152 if (ret < 0) 1153 return ret; 1154 1155 daidrv = devm_kcalloc(dev, dai_count, sizeof(*daidrv), GFP_KERNEL); 1156 if (!daidrv) 1157 return -ENOMEM; 1158 1159 if (hcd->i2s) { 1160 daidrv[i] = hdmi_i2s_dai; 1161 daidrv[i].playback.channels_max = hcd->max_i2s_channels; 1162 if (hcd->i2s_formats) { 1163 daidrv[i].playback.formats = hcd->i2s_formats; 1164 daidrv[i].capture.formats = hcd->i2s_formats; 1165 } 1166 if (hcd->no_i2s_playback) 1167 memset(&daidrv[i].playback, 0, 1168 sizeof(daidrv[i].playback)); 1169 if (hcd->no_i2s_capture) 1170 memset(&daidrv[i].capture, 0, 1171 sizeof(daidrv[i].capture)); 1172 i++; 1173 } 1174 1175 if (hcd->spdif) { 1176 daidrv[i] = hdmi_spdif_dai; 1177 if (hcd->no_spdif_playback) 1178 memset(&daidrv[i].playback, 0, 1179 sizeof(daidrv[i].playback)); 1180 if (hcd->no_spdif_capture) 1181 memset(&daidrv[i].capture, 0, 1182 sizeof(daidrv[i].capture)); 1183 } 1184 1185 dev_set_drvdata(dev, hcp); 1186 1187 ret = devm_snd_soc_register_component(dev, &hdmi_driver, daidrv, 1188 dai_count); 1189 if (ret) { 1190 dev_err(dev, "%s: snd_soc_register_component() failed (%d)\n", 1191 __func__, ret); 1192 return ret; 1193 } 1194 return 0; 1195 } 1196 1197 static struct platform_driver hdmi_codec_driver = { 1198 .driver = { 1199 .name = HDMI_CODEC_DRV_NAME, 1200 }, 1201 .probe = hdmi_codec_probe, 1202 }; 1203 1204 module_platform_driver(hdmi_codec_driver); 1205 1206 MODULE_AUTHOR("Jyri Sarha <jsarha@ti.com>"); 1207 MODULE_DESCRIPTION("HDMI Audio Codec Driver"); 1208 MODULE_LICENSE("GPL"); 1209 MODULE_ALIAS("platform:" HDMI_CODEC_DRV_NAME); 1210