1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * ALSA SoC codec for HDMI encoder drivers 4 * Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com/ 5 * Author: Jyri Sarha <jsarha@ti.com> 6 */ 7 #include <linux/module.h> 8 #include <linux/string.h> 9 #include <sound/core.h> 10 #include <sound/jack.h> 11 #include <sound/pcm.h> 12 #include <sound/pcm_params.h> 13 #include <sound/soc.h> 14 #include <sound/tlv.h> 15 #include <sound/pcm_drm_eld.h> 16 #include <sound/hdmi-codec.h> 17 #include <sound/pcm_iec958.h> 18 19 #include <drm/drm_crtc.h> /* This is only to get MAX_ELD_BYTES */ 20 21 #define HDMI_CODEC_CHMAP_IDX_UNKNOWN -1 22 23 /* 24 * CEA speaker placement for HDMI 1.4: 25 * 26 * FL FLC FC FRC FR FRW 27 * 28 * LFE 29 * 30 * RL RLC RC RRC RR 31 * 32 * Speaker placement has to be extended to support HDMI 2.0 33 */ 34 enum hdmi_codec_cea_spk_placement { 35 FL = BIT(0), /* Front Left */ 36 FC = BIT(1), /* Front Center */ 37 FR = BIT(2), /* Front Right */ 38 FLC = BIT(3), /* Front Left Center */ 39 FRC = BIT(4), /* Front Right Center */ 40 RL = BIT(5), /* Rear Left */ 41 RC = BIT(6), /* Rear Center */ 42 RR = BIT(7), /* Rear Right */ 43 RLC = BIT(8), /* Rear Left Center */ 44 RRC = BIT(9), /* Rear Right Center */ 45 LFE = BIT(10), /* Low Frequency Effect */ 46 }; 47 48 /* 49 * cea Speaker allocation structure 50 */ 51 struct hdmi_codec_cea_spk_alloc { 52 const int ca_id; 53 unsigned int n_ch; 54 unsigned long mask; 55 }; 56 57 /* Channel maps stereo HDMI */ 58 static const struct snd_pcm_chmap_elem hdmi_codec_stereo_chmaps[] = { 59 { .channels = 2, 60 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } }, 61 { } 62 }; 63 64 /* Channel maps for multi-channel playbacks, up to 8 n_ch */ 65 static const struct snd_pcm_chmap_elem hdmi_codec_8ch_chmaps[] = { 66 { .channels = 2, /* CA_ID 0x00 */ 67 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } }, 68 { .channels = 4, /* CA_ID 0x01 */ 69 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 70 SNDRV_CHMAP_NA } }, 71 { .channels = 4, /* CA_ID 0x02 */ 72 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 73 SNDRV_CHMAP_FC } }, 74 { .channels = 4, /* CA_ID 0x03 */ 75 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 76 SNDRV_CHMAP_FC } }, 77 { .channels = 6, /* CA_ID 0x04 */ 78 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 79 SNDRV_CHMAP_NA, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 80 { .channels = 6, /* CA_ID 0x05 */ 81 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 82 SNDRV_CHMAP_NA, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 83 { .channels = 6, /* CA_ID 0x06 */ 84 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 85 SNDRV_CHMAP_FC, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 86 { .channels = 6, /* CA_ID 0x07 */ 87 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 88 SNDRV_CHMAP_FC, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 89 { .channels = 6, /* CA_ID 0x08 */ 90 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 91 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, 92 { .channels = 6, /* CA_ID 0x09 */ 93 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 94 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, 95 { .channels = 6, /* CA_ID 0x0A */ 96 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 97 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, 98 { .channels = 6, /* CA_ID 0x0B */ 99 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 100 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, 101 { .channels = 8, /* CA_ID 0x0C */ 102 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 103 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 104 SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 105 { .channels = 8, /* CA_ID 0x0D */ 106 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 107 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 108 SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 109 { .channels = 8, /* CA_ID 0x0E */ 110 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 111 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 112 SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 113 { .channels = 8, /* CA_ID 0x0F */ 114 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 115 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 116 SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, 117 { .channels = 8, /* CA_ID 0x10 */ 118 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 119 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 120 SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, 121 { .channels = 8, /* CA_ID 0x11 */ 122 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 123 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 124 SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, 125 { .channels = 8, /* CA_ID 0x12 */ 126 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 127 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 128 SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, 129 { .channels = 8, /* CA_ID 0x13 */ 130 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 131 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, 132 SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, 133 { .channels = 8, /* CA_ID 0x14 */ 134 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 135 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 136 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 137 { .channels = 8, /* CA_ID 0x15 */ 138 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 139 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 140 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 141 { .channels = 8, /* CA_ID 0x16 */ 142 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 143 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 144 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 145 { .channels = 8, /* CA_ID 0x17 */ 146 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 147 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 148 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 149 { .channels = 8, /* CA_ID 0x18 */ 150 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 151 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 152 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 153 { .channels = 8, /* CA_ID 0x19 */ 154 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 155 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 156 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 157 { .channels = 8, /* CA_ID 0x1A */ 158 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 159 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 160 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 161 { .channels = 8, /* CA_ID 0x1B */ 162 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 163 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 164 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 165 { .channels = 8, /* CA_ID 0x1C */ 166 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 167 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 168 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 169 { .channels = 8, /* CA_ID 0x1D */ 170 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 171 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 172 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 173 { .channels = 8, /* CA_ID 0x1E */ 174 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, 175 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 176 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 177 { .channels = 8, /* CA_ID 0x1F */ 178 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, 179 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, 180 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, 181 { } 182 }; 183 184 /* 185 * hdmi_codec_channel_alloc: speaker configuration available for CEA 186 * 187 * This is an ordered list where ca_id must exist in hdmi_codec_8ch_chmaps 188 * The preceding ones have better chances to be selected by 189 * hdmi_codec_get_ch_alloc_table_idx(). 190 */ 191 static const struct hdmi_codec_cea_spk_alloc hdmi_codec_channel_alloc[] = { 192 { .ca_id = 0x00, .n_ch = 2, 193 .mask = FL | FR }, 194 { .ca_id = 0x03, .n_ch = 4, 195 .mask = FL | FR | LFE | FC }, 196 { .ca_id = 0x02, .n_ch = 4, 197 .mask = FL | FR | FC }, 198 { .ca_id = 0x01, .n_ch = 4, 199 .mask = FL | FR | LFE }, 200 { .ca_id = 0x0b, .n_ch = 6, 201 .mask = FL | FR | LFE | FC | RL | RR }, 202 { .ca_id = 0x0a, .n_ch = 6, 203 .mask = FL | FR | FC | RL | RR }, 204 { .ca_id = 0x09, .n_ch = 6, 205 .mask = FL | FR | LFE | RL | RR }, 206 { .ca_id = 0x08, .n_ch = 6, 207 .mask = FL | FR | RL | RR }, 208 { .ca_id = 0x07, .n_ch = 6, 209 .mask = FL | FR | LFE | FC | RC }, 210 { .ca_id = 0x06, .n_ch = 6, 211 .mask = FL | FR | FC | RC }, 212 { .ca_id = 0x05, .n_ch = 6, 213 .mask = FL | FR | LFE | RC }, 214 { .ca_id = 0x04, .n_ch = 6, 215 .mask = FL | FR | RC }, 216 { .ca_id = 0x13, .n_ch = 8, 217 .mask = FL | FR | LFE | FC | RL | RR | RLC | RRC }, 218 { .ca_id = 0x1f, .n_ch = 8, 219 .mask = FL | FR | LFE | FC | RL | RR | FLC | FRC }, 220 { .ca_id = 0x12, .n_ch = 8, 221 .mask = FL | FR | FC | RL | RR | RLC | RRC }, 222 { .ca_id = 0x1e, .n_ch = 8, 223 .mask = FL | FR | FC | RL | RR | FLC | FRC }, 224 { .ca_id = 0x11, .n_ch = 8, 225 .mask = FL | FR | LFE | RL | RR | RLC | RRC }, 226 { .ca_id = 0x1d, .n_ch = 8, 227 .mask = FL | FR | LFE | RL | RR | FLC | FRC }, 228 { .ca_id = 0x10, .n_ch = 8, 229 .mask = FL | FR | RL | RR | RLC | RRC }, 230 { .ca_id = 0x1c, .n_ch = 8, 231 .mask = FL | FR | RL | RR | FLC | FRC }, 232 { .ca_id = 0x0f, .n_ch = 8, 233 .mask = FL | FR | LFE | FC | RL | RR | RC }, 234 { .ca_id = 0x1b, .n_ch = 8, 235 .mask = FL | FR | LFE | RC | FC | FLC | FRC }, 236 { .ca_id = 0x0e, .n_ch = 8, 237 .mask = FL | FR | FC | RL | RR | RC }, 238 { .ca_id = 0x1a, .n_ch = 8, 239 .mask = FL | FR | RC | FC | FLC | FRC }, 240 { .ca_id = 0x0d, .n_ch = 8, 241 .mask = FL | FR | LFE | RL | RR | RC }, 242 { .ca_id = 0x19, .n_ch = 8, 243 .mask = FL | FR | LFE | RC | FLC | FRC }, 244 { .ca_id = 0x0c, .n_ch = 8, 245 .mask = FL | FR | RC | RL | RR }, 246 { .ca_id = 0x18, .n_ch = 8, 247 .mask = FL | FR | RC | FLC | FRC }, 248 { .ca_id = 0x17, .n_ch = 8, 249 .mask = FL | FR | LFE | FC | FLC | FRC }, 250 { .ca_id = 0x16, .n_ch = 8, 251 .mask = FL | FR | FC | FLC | FRC }, 252 { .ca_id = 0x15, .n_ch = 8, 253 .mask = FL | FR | LFE | FLC | FRC }, 254 { .ca_id = 0x14, .n_ch = 8, 255 .mask = FL | FR | FLC | FRC }, 256 { .ca_id = 0x0b, .n_ch = 8, 257 .mask = FL | FR | LFE | FC | RL | RR }, 258 { .ca_id = 0x0a, .n_ch = 8, 259 .mask = FL | FR | FC | RL | RR }, 260 { .ca_id = 0x09, .n_ch = 8, 261 .mask = FL | FR | LFE | RL | RR }, 262 { .ca_id = 0x08, .n_ch = 8, 263 .mask = FL | FR | RL | RR }, 264 { .ca_id = 0x07, .n_ch = 8, 265 .mask = FL | FR | LFE | FC | RC }, 266 { .ca_id = 0x06, .n_ch = 8, 267 .mask = FL | FR | FC | RC }, 268 { .ca_id = 0x05, .n_ch = 8, 269 .mask = FL | FR | LFE | RC }, 270 { .ca_id = 0x04, .n_ch = 8, 271 .mask = FL | FR | RC }, 272 { .ca_id = 0x03, .n_ch = 8, 273 .mask = FL | FR | LFE | FC }, 274 { .ca_id = 0x02, .n_ch = 8, 275 .mask = FL | FR | FC }, 276 { .ca_id = 0x01, .n_ch = 8, 277 .mask = FL | FR | LFE }, 278 }; 279 280 struct hdmi_codec_priv { 281 struct hdmi_codec_pdata hcd; 282 uint8_t eld[MAX_ELD_BYTES]; 283 struct snd_pcm_chmap *chmap_info; 284 unsigned int chmap_idx; 285 struct mutex lock; 286 bool busy; 287 struct snd_soc_jack *jack; 288 unsigned int jack_status; 289 u8 iec_status[AES_IEC958_STATUS_SIZE]; 290 }; 291 292 static const struct snd_soc_dapm_widget hdmi_widgets[] = { 293 SND_SOC_DAPM_OUTPUT("TX"), 294 SND_SOC_DAPM_OUTPUT("RX"), 295 }; 296 297 enum { 298 DAI_ID_I2S = 0, 299 DAI_ID_SPDIF, 300 }; 301 302 static int hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol, 303 struct snd_ctl_elem_info *uinfo) 304 { 305 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; 306 uinfo->count = sizeof_field(struct hdmi_codec_priv, eld); 307 308 return 0; 309 } 310 311 static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol, 312 struct snd_ctl_elem_value *ucontrol) 313 { 314 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 315 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 316 317 memcpy(ucontrol->value.bytes.data, hcp->eld, sizeof(hcp->eld)); 318 319 return 0; 320 } 321 322 static unsigned long hdmi_codec_spk_mask_from_alloc(int spk_alloc) 323 { 324 int i; 325 static const unsigned long hdmi_codec_eld_spk_alloc_bits[] = { 326 [0] = FL | FR, [1] = LFE, [2] = FC, [3] = RL | RR, 327 [4] = RC, [5] = FLC | FRC, [6] = RLC | RRC, 328 }; 329 unsigned long spk_mask = 0; 330 331 for (i = 0; i < ARRAY_SIZE(hdmi_codec_eld_spk_alloc_bits); i++) { 332 if (spk_alloc & (1 << i)) 333 spk_mask |= hdmi_codec_eld_spk_alloc_bits[i]; 334 } 335 336 return spk_mask; 337 } 338 339 static void hdmi_codec_eld_chmap(struct hdmi_codec_priv *hcp) 340 { 341 u8 spk_alloc; 342 unsigned long spk_mask; 343 344 spk_alloc = drm_eld_get_spk_alloc(hcp->eld); 345 spk_mask = hdmi_codec_spk_mask_from_alloc(spk_alloc); 346 347 /* Detect if only stereo supported, else return 8 channels mappings */ 348 if ((spk_mask & ~(FL | FR)) && hcp->chmap_info->max_channels > 2) 349 hcp->chmap_info->chmap = hdmi_codec_8ch_chmaps; 350 else 351 hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps; 352 } 353 354 static int hdmi_codec_get_ch_alloc_table_idx(struct hdmi_codec_priv *hcp, 355 unsigned char channels) 356 { 357 int i; 358 u8 spk_alloc; 359 unsigned long spk_mask; 360 const struct hdmi_codec_cea_spk_alloc *cap = hdmi_codec_channel_alloc; 361 362 spk_alloc = drm_eld_get_spk_alloc(hcp->eld); 363 spk_mask = hdmi_codec_spk_mask_from_alloc(spk_alloc); 364 365 for (i = 0; i < ARRAY_SIZE(hdmi_codec_channel_alloc); i++, cap++) { 366 /* If spk_alloc == 0, HDMI is unplugged return stereo config*/ 367 if (!spk_alloc && cap->ca_id == 0) 368 return i; 369 if (cap->n_ch != channels) 370 continue; 371 if (!(cap->mask == (spk_mask & cap->mask))) 372 continue; 373 return i; 374 } 375 376 return -EINVAL; 377 } 378 static int hdmi_codec_chmap_ctl_get(struct snd_kcontrol *kcontrol, 379 struct snd_ctl_elem_value *ucontrol) 380 { 381 unsigned const char *map; 382 unsigned int i; 383 struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol); 384 struct hdmi_codec_priv *hcp = info->private_data; 385 386 if (hcp->chmap_idx != HDMI_CODEC_CHMAP_IDX_UNKNOWN) 387 map = info->chmap[hcp->chmap_idx].map; 388 389 for (i = 0; i < info->max_channels; i++) { 390 if (hcp->chmap_idx == HDMI_CODEC_CHMAP_IDX_UNKNOWN) 391 ucontrol->value.integer.value[i] = 0; 392 else 393 ucontrol->value.integer.value[i] = map[i]; 394 } 395 396 return 0; 397 } 398 399 static int hdmi_codec_iec958_info(struct snd_kcontrol *kcontrol, 400 struct snd_ctl_elem_info *uinfo) 401 { 402 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; 403 uinfo->count = 1; 404 return 0; 405 } 406 407 static int hdmi_codec_iec958_default_get(struct snd_kcontrol *kcontrol, 408 struct snd_ctl_elem_value *ucontrol) 409 { 410 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 411 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 412 413 memcpy(ucontrol->value.iec958.status, hcp->iec_status, 414 sizeof(hcp->iec_status)); 415 416 return 0; 417 } 418 419 static int hdmi_codec_iec958_default_put(struct snd_kcontrol *kcontrol, 420 struct snd_ctl_elem_value *ucontrol) 421 { 422 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 423 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 424 425 memcpy(hcp->iec_status, ucontrol->value.iec958.status, 426 sizeof(hcp->iec_status)); 427 428 return 0; 429 } 430 431 static int hdmi_codec_iec958_mask_get(struct snd_kcontrol *kcontrol, 432 struct snd_ctl_elem_value *ucontrol) 433 { 434 memset(ucontrol->value.iec958.status, 0xff, 435 sizeof_field(struct hdmi_codec_priv, iec_status)); 436 437 return 0; 438 } 439 440 static int hdmi_codec_startup(struct snd_pcm_substream *substream, 441 struct snd_soc_dai *dai) 442 { 443 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 444 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; 445 bool has_capture = !hcp->hcd.no_i2s_capture; 446 bool has_playback = !hcp->hcd.no_i2s_playback; 447 int ret = 0; 448 449 if (!((has_playback && tx) || (has_capture && !tx))) 450 return 0; 451 452 mutex_lock(&hcp->lock); 453 if (hcp->busy) { 454 dev_err(dai->dev, "Only one simultaneous stream supported!\n"); 455 mutex_unlock(&hcp->lock); 456 return -EINVAL; 457 } 458 459 if (hcp->hcd.ops->audio_startup) { 460 ret = hcp->hcd.ops->audio_startup(dai->dev->parent, hcp->hcd.data); 461 if (ret) 462 goto err; 463 } 464 465 if (tx && hcp->hcd.ops->get_eld) { 466 ret = hcp->hcd.ops->get_eld(dai->dev->parent, hcp->hcd.data, 467 hcp->eld, sizeof(hcp->eld)); 468 if (ret) 469 goto err; 470 471 ret = snd_pcm_hw_constraint_eld(substream->runtime, hcp->eld); 472 if (ret) 473 goto err; 474 475 /* Select chmap supported */ 476 hdmi_codec_eld_chmap(hcp); 477 } 478 479 hcp->busy = true; 480 481 err: 482 mutex_unlock(&hcp->lock); 483 return ret; 484 } 485 486 static void hdmi_codec_shutdown(struct snd_pcm_substream *substream, 487 struct snd_soc_dai *dai) 488 { 489 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 490 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; 491 bool has_capture = !hcp->hcd.no_i2s_capture; 492 bool has_playback = !hcp->hcd.no_i2s_playback; 493 494 if (!((has_playback && tx) || (has_capture && !tx))) 495 return; 496 497 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 498 hcp->hcd.ops->audio_shutdown(dai->dev->parent, hcp->hcd.data); 499 500 mutex_lock(&hcp->lock); 501 hcp->busy = false; 502 mutex_unlock(&hcp->lock); 503 } 504 505 static int hdmi_codec_fill_codec_params(struct snd_soc_dai *dai, 506 unsigned int sample_width, 507 unsigned int sample_rate, 508 unsigned int channels, 509 struct hdmi_codec_params *hp) 510 { 511 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 512 int idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 513 u8 ca_id = 0; 514 bool pcm_audio = !(hcp->iec_status[0] & IEC958_AES0_NONAUDIO); 515 516 if (pcm_audio) { 517 /* Select a channel allocation that matches with ELD and pcm channels */ 518 idx = hdmi_codec_get_ch_alloc_table_idx(hcp, channels); 519 520 if (idx < 0) { 521 dev_err(dai->dev, "Not able to map channels to speakers (%d)\n", 522 idx); 523 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 524 return idx; 525 } 526 527 ca_id = hdmi_codec_channel_alloc[idx].ca_id; 528 } 529 530 memset(hp, 0, sizeof(*hp)); 531 532 hdmi_audio_infoframe_init(&hp->cea); 533 534 if (pcm_audio) 535 hp->cea.channels = channels; 536 else 537 hp->cea.channels = 0; 538 539 hp->cea.coding_type = HDMI_AUDIO_CODING_TYPE_STREAM; 540 hp->cea.sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM; 541 hp->cea.sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM; 542 hp->cea.channel_allocation = ca_id; 543 544 hp->sample_width = sample_width; 545 hp->sample_rate = sample_rate; 546 hp->channels = channels; 547 548 if (pcm_audio) 549 hcp->chmap_idx = ca_id; 550 else 551 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 552 553 return 0; 554 } 555 556 static int hdmi_codec_hw_params(struct snd_pcm_substream *substream, 557 struct snd_pcm_hw_params *params, 558 struct snd_soc_dai *dai) 559 { 560 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 561 struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai); 562 struct hdmi_codec_params hp = { 563 .iec = { 564 .status = { 0 }, 565 .subcode = { 0 }, 566 .pad = 0, 567 .dig_subframe = { 0 }, 568 } 569 }; 570 int ret; 571 572 if (!hcp->hcd.ops->hw_params) 573 return 0; 574 575 dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__, 576 params_width(params), params_rate(params), 577 params_channels(params)); 578 579 ret = hdmi_codec_fill_codec_params(dai, 580 params_width(params), 581 params_rate(params), 582 params_channels(params), 583 &hp); 584 if (ret < 0) 585 return ret; 586 587 memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status)); 588 ret = snd_pcm_fill_iec958_consumer_hw_params(params, hp.iec.status, 589 sizeof(hp.iec.status)); 590 if (ret < 0) { 591 dev_err(dai->dev, "Creating IEC958 channel status failed %d\n", 592 ret); 593 return ret; 594 } 595 596 cf->bit_fmt = params_format(params); 597 return hcp->hcd.ops->hw_params(dai->dev->parent, hcp->hcd.data, 598 cf, &hp); 599 } 600 601 static int hdmi_codec_prepare(struct snd_pcm_substream *substream, 602 struct snd_soc_dai *dai) 603 { 604 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 605 struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai); 606 struct snd_pcm_runtime *runtime = substream->runtime; 607 unsigned int channels = runtime->channels; 608 unsigned int width = snd_pcm_format_width(runtime->format); 609 unsigned int rate = runtime->rate; 610 struct hdmi_codec_params hp; 611 int ret; 612 613 if (!hcp->hcd.ops->prepare) 614 return 0; 615 616 dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__, 617 width, rate, channels); 618 619 ret = hdmi_codec_fill_codec_params(dai, width, rate, channels, &hp); 620 if (ret < 0) 621 return ret; 622 623 memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status)); 624 ret = snd_pcm_fill_iec958_consumer(runtime, hp.iec.status, 625 sizeof(hp.iec.status)); 626 if (ret < 0) { 627 dev_err(dai->dev, "Creating IEC958 channel status failed %d\n", 628 ret); 629 return ret; 630 } 631 632 cf->bit_fmt = runtime->format; 633 return hcp->hcd.ops->prepare(dai->dev->parent, hcp->hcd.data, 634 cf, &hp); 635 } 636 637 static int hdmi_codec_i2s_set_fmt(struct snd_soc_dai *dai, 638 unsigned int fmt) 639 { 640 struct hdmi_codec_daifmt *cf = snd_soc_dai_dma_data_get_playback(dai); 641 642 /* Reset daifmt */ 643 memset(cf, 0, sizeof(*cf)); 644 645 switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { 646 case SND_SOC_DAIFMT_CBP_CFP: 647 cf->bit_clk_provider = 1; 648 cf->frame_clk_provider = 1; 649 break; 650 case SND_SOC_DAIFMT_CBC_CFP: 651 cf->frame_clk_provider = 1; 652 break; 653 case SND_SOC_DAIFMT_CBP_CFC: 654 cf->bit_clk_provider = 1; 655 break; 656 case SND_SOC_DAIFMT_CBC_CFC: 657 break; 658 default: 659 return -EINVAL; 660 } 661 662 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 663 case SND_SOC_DAIFMT_NB_NF: 664 break; 665 case SND_SOC_DAIFMT_NB_IF: 666 cf->frame_clk_inv = 1; 667 break; 668 case SND_SOC_DAIFMT_IB_NF: 669 cf->bit_clk_inv = 1; 670 break; 671 case SND_SOC_DAIFMT_IB_IF: 672 cf->frame_clk_inv = 1; 673 cf->bit_clk_inv = 1; 674 break; 675 } 676 677 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 678 case SND_SOC_DAIFMT_I2S: 679 cf->fmt = HDMI_I2S; 680 break; 681 case SND_SOC_DAIFMT_DSP_A: 682 cf->fmt = HDMI_DSP_A; 683 break; 684 case SND_SOC_DAIFMT_DSP_B: 685 cf->fmt = HDMI_DSP_B; 686 break; 687 case SND_SOC_DAIFMT_RIGHT_J: 688 cf->fmt = HDMI_RIGHT_J; 689 break; 690 case SND_SOC_DAIFMT_LEFT_J: 691 cf->fmt = HDMI_LEFT_J; 692 break; 693 case SND_SOC_DAIFMT_AC97: 694 cf->fmt = HDMI_AC97; 695 break; 696 default: 697 dev_err(dai->dev, "Invalid DAI interface format\n"); 698 return -EINVAL; 699 } 700 701 return 0; 702 } 703 704 static int hdmi_codec_mute(struct snd_soc_dai *dai, int mute, int direction) 705 { 706 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 707 708 /* 709 * ignore if direction was CAPTURE 710 * and it had .no_capture_mute flag 711 * see 712 * snd_soc_dai_digital_mute() 713 */ 714 if (hcp->hcd.ops->mute_stream && 715 (direction == SNDRV_PCM_STREAM_PLAYBACK || 716 !hcp->hcd.ops->no_capture_mute)) 717 return hcp->hcd.ops->mute_stream(dai->dev->parent, 718 hcp->hcd.data, 719 mute, direction); 720 721 return -ENOTSUPP; 722 } 723 724 /* 725 * This driver can select all SND_SOC_DAIFMT_CBx_CFx, 726 * but need to be selected from Sound Card, not be auto selected. 727 * Because it might be used from other driver. 728 * For example, 729 * ${LINUX}/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c 730 */ 731 static u64 hdmi_codec_formats = 732 SND_SOC_POSSIBLE_DAIFMT_NB_NF | 733 SND_SOC_POSSIBLE_DAIFMT_NB_IF | 734 SND_SOC_POSSIBLE_DAIFMT_IB_NF | 735 SND_SOC_POSSIBLE_DAIFMT_IB_IF | 736 SND_SOC_POSSIBLE_DAIFMT_I2S | 737 SND_SOC_POSSIBLE_DAIFMT_DSP_A | 738 SND_SOC_POSSIBLE_DAIFMT_DSP_B | 739 SND_SOC_POSSIBLE_DAIFMT_RIGHT_J | 740 SND_SOC_POSSIBLE_DAIFMT_LEFT_J | 741 SND_SOC_POSSIBLE_DAIFMT_AC97; 742 743 #define HDMI_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ 744 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\ 745 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\ 746 SNDRV_PCM_RATE_192000) 747 748 #define SPDIF_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 749 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE) 750 751 /* 752 * This list is only for formats allowed on the I2S bus. So there is 753 * some formats listed that are not supported by HDMI interface. For 754 * instance allowing the 32-bit formats enables 24-precision with CPU 755 * DAIs that do not support 24-bit formats. If the extra formats cause 756 * problems, we should add the video side driver an option to disable 757 * them. 758 */ 759 #define I2S_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 760 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE |\ 761 SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE) 762 763 static struct snd_kcontrol_new hdmi_codec_controls[] = { 764 { 765 .access = SNDRV_CTL_ELEM_ACCESS_READ, 766 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 767 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK), 768 .info = hdmi_codec_iec958_info, 769 .get = hdmi_codec_iec958_mask_get, 770 }, 771 { 772 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 773 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT), 774 .info = hdmi_codec_iec958_info, 775 .get = hdmi_codec_iec958_default_get, 776 .put = hdmi_codec_iec958_default_put, 777 }, 778 { 779 .access = (SNDRV_CTL_ELEM_ACCESS_READ | 780 SNDRV_CTL_ELEM_ACCESS_VOLATILE), 781 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 782 .name = "ELD", 783 .info = hdmi_eld_ctl_info, 784 .get = hdmi_eld_ctl_get, 785 }, 786 }; 787 788 static int hdmi_codec_pcm_new(struct snd_soc_pcm_runtime *rtd, 789 struct snd_soc_dai *dai) 790 { 791 struct snd_soc_dai_driver *drv = dai->driver; 792 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); 793 unsigned int i; 794 int ret; 795 796 ret = snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK, 797 NULL, drv->playback.channels_max, 0, 798 &hcp->chmap_info); 799 if (ret < 0) 800 return ret; 801 802 /* override handlers */ 803 hcp->chmap_info->private_data = hcp; 804 hcp->chmap_info->kctl->get = hdmi_codec_chmap_ctl_get; 805 806 /* default chmap supported is stereo */ 807 hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps; 808 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; 809 810 for (i = 0; i < ARRAY_SIZE(hdmi_codec_controls); i++) { 811 struct snd_kcontrol *kctl; 812 813 /* add ELD ctl with the device number corresponding to the PCM stream */ 814 kctl = snd_ctl_new1(&hdmi_codec_controls[i], dai->component); 815 if (!kctl) 816 return -ENOMEM; 817 818 kctl->id.device = rtd->pcm->device; 819 ret = snd_ctl_add(rtd->card->snd_card, kctl); 820 if (ret < 0) 821 return ret; 822 } 823 824 return 0; 825 } 826 827 static int hdmi_dai_probe(struct snd_soc_dai *dai) 828 { 829 struct snd_soc_dapm_context *dapm; 830 struct hdmi_codec_daifmt *daifmt; 831 struct snd_soc_dapm_route route[] = { 832 { 833 .sink = "TX", 834 .source = dai->driver->playback.stream_name, 835 }, 836 { 837 .sink = dai->driver->capture.stream_name, 838 .source = "RX", 839 }, 840 }; 841 int ret, i; 842 843 dapm = snd_soc_component_get_dapm(dai->component); 844 845 /* One of the directions might be omitted for unidirectional DAIs */ 846 for (i = 0; i < ARRAY_SIZE(route); i++) { 847 if (!route[i].source || !route[i].sink) 848 continue; 849 850 ret = snd_soc_dapm_add_routes(dapm, &route[i], 1); 851 if (ret) 852 return ret; 853 } 854 855 daifmt = devm_kzalloc(dai->dev, sizeof(*daifmt), GFP_KERNEL); 856 if (!daifmt) 857 return -ENOMEM; 858 859 snd_soc_dai_dma_data_set_playback(dai, daifmt); 860 861 return 0; 862 } 863 864 static void hdmi_codec_jack_report(struct hdmi_codec_priv *hcp, 865 unsigned int jack_status) 866 { 867 if (jack_status != hcp->jack_status) { 868 if (hcp->jack) 869 snd_soc_jack_report(hcp->jack, jack_status, SND_JACK_LINEOUT); 870 hcp->jack_status = jack_status; 871 } 872 } 873 874 static void plugged_cb(struct device *dev, bool plugged) 875 { 876 struct hdmi_codec_priv *hcp = dev_get_drvdata(dev); 877 878 if (plugged) { 879 if (hcp->hcd.ops->get_eld) { 880 hcp->hcd.ops->get_eld(dev->parent, hcp->hcd.data, 881 hcp->eld, sizeof(hcp->eld)); 882 } 883 hdmi_codec_jack_report(hcp, SND_JACK_LINEOUT); 884 } else { 885 hdmi_codec_jack_report(hcp, 0); 886 memset(hcp->eld, 0, sizeof(hcp->eld)); 887 } 888 } 889 890 static int hdmi_codec_set_jack(struct snd_soc_component *component, 891 struct snd_soc_jack *jack, 892 void *data) 893 { 894 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 895 896 if (hcp->hcd.ops->hook_plugged_cb) { 897 hcp->jack = jack; 898 899 /* 900 * Report the initial jack status which may have been provided 901 * by the parent hdmi driver while the hpd hook was registered. 902 */ 903 snd_soc_jack_report(jack, hcp->jack_status, SND_JACK_LINEOUT); 904 905 return 0; 906 } 907 908 return -ENOTSUPP; 909 } 910 911 static int hdmi_dai_spdif_probe(struct snd_soc_dai *dai) 912 { 913 struct hdmi_codec_daifmt *cf; 914 int ret; 915 916 ret = hdmi_dai_probe(dai); 917 if (ret) 918 return ret; 919 920 cf = snd_soc_dai_dma_data_get_playback(dai); 921 cf->fmt = HDMI_SPDIF; 922 923 return 0; 924 } 925 926 static const struct snd_soc_dai_ops hdmi_codec_i2s_dai_ops = { 927 .probe = hdmi_dai_probe, 928 .startup = hdmi_codec_startup, 929 .shutdown = hdmi_codec_shutdown, 930 .hw_params = hdmi_codec_hw_params, 931 .prepare = hdmi_codec_prepare, 932 .set_fmt = hdmi_codec_i2s_set_fmt, 933 .mute_stream = hdmi_codec_mute, 934 .pcm_new = hdmi_codec_pcm_new, 935 .auto_selectable_formats = &hdmi_codec_formats, 936 .num_auto_selectable_formats = 1, 937 }; 938 939 static const struct snd_soc_dai_ops hdmi_codec_spdif_dai_ops = { 940 .probe = hdmi_dai_spdif_probe, 941 .startup = hdmi_codec_startup, 942 .shutdown = hdmi_codec_shutdown, 943 .hw_params = hdmi_codec_hw_params, 944 .mute_stream = hdmi_codec_mute, 945 .pcm_new = hdmi_codec_pcm_new, 946 }; 947 948 static const struct snd_soc_dai_driver hdmi_i2s_dai = { 949 .name = "i2s-hifi", 950 .id = DAI_ID_I2S, 951 .playback = { 952 .stream_name = "I2S Playback", 953 .channels_min = 2, 954 .channels_max = 8, 955 .rates = HDMI_RATES, 956 .formats = I2S_FORMATS, 957 .sig_bits = 24, 958 }, 959 .capture = { 960 .stream_name = "Capture", 961 .channels_min = 2, 962 .channels_max = 8, 963 .rates = HDMI_RATES, 964 .formats = I2S_FORMATS, 965 .sig_bits = 24, 966 }, 967 .ops = &hdmi_codec_i2s_dai_ops, 968 }; 969 970 static const struct snd_soc_dai_driver hdmi_spdif_dai = { 971 .name = "spdif-hifi", 972 .id = DAI_ID_SPDIF, 973 .playback = { 974 .stream_name = "SPDIF Playback", 975 .channels_min = 2, 976 .channels_max = 2, 977 .rates = HDMI_RATES, 978 .formats = SPDIF_FORMATS, 979 }, 980 .capture = { 981 .stream_name = "Capture", 982 .channels_min = 2, 983 .channels_max = 2, 984 .rates = HDMI_RATES, 985 .formats = SPDIF_FORMATS, 986 }, 987 .ops = &hdmi_codec_spdif_dai_ops, 988 }; 989 990 static int hdmi_of_xlate_dai_id(struct snd_soc_component *component, 991 struct device_node *endpoint) 992 { 993 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 994 int ret = -ENOTSUPP; /* see snd_soc_get_dai_id() */ 995 996 if (hcp->hcd.ops->get_dai_id) 997 ret = hcp->hcd.ops->get_dai_id(component, endpoint); 998 999 return ret; 1000 } 1001 1002 static int hdmi_probe(struct snd_soc_component *component) 1003 { 1004 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 1005 int ret = 0; 1006 1007 if (hcp->hcd.ops->hook_plugged_cb) { 1008 ret = hcp->hcd.ops->hook_plugged_cb(component->dev->parent, 1009 hcp->hcd.data, 1010 plugged_cb, 1011 component->dev); 1012 } 1013 1014 return ret; 1015 } 1016 1017 static void hdmi_remove(struct snd_soc_component *component) 1018 { 1019 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); 1020 1021 if (hcp->hcd.ops->hook_plugged_cb) 1022 hcp->hcd.ops->hook_plugged_cb(component->dev->parent, 1023 hcp->hcd.data, NULL, NULL); 1024 } 1025 1026 static const struct snd_soc_component_driver hdmi_driver = { 1027 .probe = hdmi_probe, 1028 .remove = hdmi_remove, 1029 .dapm_widgets = hdmi_widgets, 1030 .num_dapm_widgets = ARRAY_SIZE(hdmi_widgets), 1031 .of_xlate_dai_id = hdmi_of_xlate_dai_id, 1032 .idle_bias_on = 1, 1033 .use_pmdown_time = 1, 1034 .endianness = 1, 1035 .set_jack = hdmi_codec_set_jack, 1036 }; 1037 1038 static int hdmi_codec_probe(struct platform_device *pdev) 1039 { 1040 struct hdmi_codec_pdata *hcd = pdev->dev.platform_data; 1041 struct snd_soc_dai_driver *daidrv; 1042 struct device *dev = &pdev->dev; 1043 struct hdmi_codec_priv *hcp; 1044 int dai_count, i = 0; 1045 int ret; 1046 1047 if (!hcd) { 1048 dev_err(dev, "%s: No platform data\n", __func__); 1049 return -EINVAL; 1050 } 1051 1052 dai_count = hcd->i2s + hcd->spdif; 1053 if (dai_count < 1 || !hcd->ops || 1054 (!hcd->ops->hw_params && !hcd->ops->prepare) || 1055 !hcd->ops->audio_shutdown) { 1056 dev_err(dev, "%s: Invalid parameters\n", __func__); 1057 return -EINVAL; 1058 } 1059 1060 hcp = devm_kzalloc(dev, sizeof(*hcp), GFP_KERNEL); 1061 if (!hcp) 1062 return -ENOMEM; 1063 1064 hcp->hcd = *hcd; 1065 mutex_init(&hcp->lock); 1066 1067 ret = snd_pcm_create_iec958_consumer_default(hcp->iec_status, 1068 sizeof(hcp->iec_status)); 1069 if (ret < 0) 1070 return ret; 1071 1072 daidrv = devm_kcalloc(dev, dai_count, sizeof(*daidrv), GFP_KERNEL); 1073 if (!daidrv) 1074 return -ENOMEM; 1075 1076 if (hcd->i2s) { 1077 daidrv[i] = hdmi_i2s_dai; 1078 daidrv[i].playback.channels_max = hcd->max_i2s_channels; 1079 if (hcd->no_i2s_playback) 1080 memset(&daidrv[i].playback, 0, 1081 sizeof(daidrv[i].playback)); 1082 if (hcd->no_i2s_capture) 1083 memset(&daidrv[i].capture, 0, 1084 sizeof(daidrv[i].capture)); 1085 i++; 1086 } 1087 1088 if (hcd->spdif) { 1089 daidrv[i] = hdmi_spdif_dai; 1090 if (hcd->no_spdif_playback) 1091 memset(&daidrv[i].playback, 0, 1092 sizeof(daidrv[i].playback)); 1093 if (hcd->no_spdif_capture) 1094 memset(&daidrv[i].capture, 0, 1095 sizeof(daidrv[i].capture)); 1096 } 1097 1098 dev_set_drvdata(dev, hcp); 1099 1100 ret = devm_snd_soc_register_component(dev, &hdmi_driver, daidrv, 1101 dai_count); 1102 if (ret) { 1103 dev_err(dev, "%s: snd_soc_register_component() failed (%d)\n", 1104 __func__, ret); 1105 return ret; 1106 } 1107 return 0; 1108 } 1109 1110 static struct platform_driver hdmi_codec_driver = { 1111 .driver = { 1112 .name = HDMI_CODEC_DRV_NAME, 1113 }, 1114 .probe = hdmi_codec_probe, 1115 }; 1116 1117 module_platform_driver(hdmi_codec_driver); 1118 1119 MODULE_AUTHOR("Jyri Sarha <jsarha@ti.com>"); 1120 MODULE_DESCRIPTION("HDMI Audio Codec Driver"); 1121 MODULE_LICENSE("GPL"); 1122 MODULE_ALIAS("platform:" HDMI_CODEC_DRV_NAME); 1123