1 // SPDX-License-Identifier: GPL-2.0 2 // 3 // MediaTek ALSA SoC Audio DAI TDM Control 4 // 5 // Copyright (c) 2018 MediaTek Inc. 6 // Author: KaiChieh Chuang <kaichieh.chuang@mediatek.com> 7 8 #include <linux/regmap.h> 9 #include <sound/pcm_params.h> 10 #include "mt8183-afe-clk.h" 11 #include "mt8183-afe-common.h" 12 #include "mt8183-interconnection.h" 13 #include "mt8183-reg.h" 14 15 struct mtk_afe_tdm_priv { 16 int bck_id; 17 int bck_rate; 18 int tdm_out_mode; 19 int bck_invert; 20 int lck_invert; 21 int mclk_id; 22 int mclk_multiple; /* according to sample rate */ 23 int mclk_rate; 24 int mclk_apll; 25 }; 26 27 enum { 28 TDM_OUT_I2S = 0, 29 TDM_OUT_TDM = 1, 30 }; 31 32 enum { 33 TDM_BCK_NON_INV = 0, 34 TDM_BCK_INV = 1, 35 }; 36 37 enum { 38 TDM_LCK_NON_INV = 0, 39 TDM_LCK_INV = 1, 40 }; 41 42 enum { 43 TDM_WLEN_16_BIT = 1, 44 TDM_WLEN_32_BIT = 2, 45 }; 46 47 enum { 48 TDM_CHANNEL_BCK_16 = 0, 49 TDM_CHANNEL_BCK_24 = 1, 50 TDM_CHANNEL_BCK_32 = 2, 51 }; 52 53 enum { 54 TDM_CHANNEL_NUM_2 = 0, 55 TDM_CHANNEL_NUM_4 = 1, 56 TDM_CHANNEL_NUM_8 = 2, 57 }; 58 59 enum { 60 TDM_CH_START_O30_O31 = 0, 61 TDM_CH_START_O32_O33, 62 TDM_CH_START_O34_O35, 63 TDM_CH_START_O36_O37, 64 TDM_CH_ZERO, 65 }; 66 67 enum { 68 HDMI_BIT_WIDTH_16_BIT = 0, 69 HDMI_BIT_WIDTH_32_BIT = 1, 70 }; 71 72 static unsigned int get_hdmi_wlen(snd_pcm_format_t format) 73 { 74 return snd_pcm_format_physical_width(format) <= 16 ? 75 HDMI_BIT_WIDTH_16_BIT : HDMI_BIT_WIDTH_32_BIT; 76 } 77 78 static unsigned int get_tdm_wlen(snd_pcm_format_t format) 79 { 80 return snd_pcm_format_physical_width(format) <= 16 ? 81 TDM_WLEN_16_BIT : TDM_WLEN_32_BIT; 82 } 83 84 static unsigned int get_tdm_channel_bck(snd_pcm_format_t format) 85 { 86 return snd_pcm_format_physical_width(format) <= 16 ? 87 TDM_CHANNEL_BCK_16 : TDM_CHANNEL_BCK_32; 88 } 89 90 static unsigned int get_tdm_lrck_width(snd_pcm_format_t format) 91 { 92 return snd_pcm_format_physical_width(format) - 1; 93 } 94 95 static unsigned int get_tdm_ch(unsigned int ch) 96 { 97 switch (ch) { 98 case 1: 99 case 2: 100 return TDM_CHANNEL_NUM_2; 101 case 3: 102 case 4: 103 return TDM_CHANNEL_NUM_4; 104 case 5: 105 case 6: 106 case 7: 107 case 8: 108 default: 109 return TDM_CHANNEL_NUM_8; 110 } 111 } 112 113 static unsigned int get_tdm_ch_fixup(unsigned int channels) 114 { 115 if (channels > 4) 116 return 8; 117 else if (channels > 2) 118 return 4; 119 else 120 return 2; 121 } 122 123 static unsigned int get_tdm_ch_per_sdata(unsigned int mode, 124 unsigned int channels) 125 { 126 if (mode == TDM_OUT_TDM) 127 return get_tdm_ch_fixup(channels); 128 else 129 return 2; 130 } 131 132 /* interconnection */ 133 enum { 134 HDMI_CONN_CH0 = 0, 135 HDMI_CONN_CH1, 136 HDMI_CONN_CH2, 137 HDMI_CONN_CH3, 138 HDMI_CONN_CH4, 139 HDMI_CONN_CH5, 140 HDMI_CONN_CH6, 141 HDMI_CONN_CH7, 142 }; 143 144 static const char *const hdmi_conn_mux_map[] = { 145 "CH0", "CH1", "CH2", "CH3", 146 "CH4", "CH5", "CH6", "CH7", 147 }; 148 149 static int hdmi_conn_mux_map_value[] = { 150 HDMI_CONN_CH0, 151 HDMI_CONN_CH1, 152 HDMI_CONN_CH2, 153 HDMI_CONN_CH3, 154 HDMI_CONN_CH4, 155 HDMI_CONN_CH5, 156 HDMI_CONN_CH6, 157 HDMI_CONN_CH7, 158 }; 159 160 static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch0_mux_map_enum, 161 AFE_HDMI_CONN0, 162 HDMI_O_0_SFT, 163 HDMI_O_0_MASK, 164 hdmi_conn_mux_map, 165 hdmi_conn_mux_map_value); 166 167 static const struct snd_kcontrol_new hdmi_ch0_mux_control = 168 SOC_DAPM_ENUM("HDMI_CH0_MUX", hdmi_ch0_mux_map_enum); 169 170 static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch1_mux_map_enum, 171 AFE_HDMI_CONN0, 172 HDMI_O_1_SFT, 173 HDMI_O_1_MASK, 174 hdmi_conn_mux_map, 175 hdmi_conn_mux_map_value); 176 177 static const struct snd_kcontrol_new hdmi_ch1_mux_control = 178 SOC_DAPM_ENUM("HDMI_CH1_MUX", hdmi_ch1_mux_map_enum); 179 180 static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch2_mux_map_enum, 181 AFE_HDMI_CONN0, 182 HDMI_O_2_SFT, 183 HDMI_O_2_MASK, 184 hdmi_conn_mux_map, 185 hdmi_conn_mux_map_value); 186 187 static const struct snd_kcontrol_new hdmi_ch2_mux_control = 188 SOC_DAPM_ENUM("HDMI_CH2_MUX", hdmi_ch2_mux_map_enum); 189 190 static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch3_mux_map_enum, 191 AFE_HDMI_CONN0, 192 HDMI_O_3_SFT, 193 HDMI_O_3_MASK, 194 hdmi_conn_mux_map, 195 hdmi_conn_mux_map_value); 196 197 static const struct snd_kcontrol_new hdmi_ch3_mux_control = 198 SOC_DAPM_ENUM("HDMI_CH3_MUX", hdmi_ch3_mux_map_enum); 199 200 static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch4_mux_map_enum, 201 AFE_HDMI_CONN0, 202 HDMI_O_4_SFT, 203 HDMI_O_4_MASK, 204 hdmi_conn_mux_map, 205 hdmi_conn_mux_map_value); 206 207 static const struct snd_kcontrol_new hdmi_ch4_mux_control = 208 SOC_DAPM_ENUM("HDMI_CH4_MUX", hdmi_ch4_mux_map_enum); 209 210 static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch5_mux_map_enum, 211 AFE_HDMI_CONN0, 212 HDMI_O_5_SFT, 213 HDMI_O_5_MASK, 214 hdmi_conn_mux_map, 215 hdmi_conn_mux_map_value); 216 217 static const struct snd_kcontrol_new hdmi_ch5_mux_control = 218 SOC_DAPM_ENUM("HDMI_CH5_MUX", hdmi_ch5_mux_map_enum); 219 220 static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch6_mux_map_enum, 221 AFE_HDMI_CONN0, 222 HDMI_O_6_SFT, 223 HDMI_O_6_MASK, 224 hdmi_conn_mux_map, 225 hdmi_conn_mux_map_value); 226 227 static const struct snd_kcontrol_new hdmi_ch6_mux_control = 228 SOC_DAPM_ENUM("HDMI_CH6_MUX", hdmi_ch6_mux_map_enum); 229 230 static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch7_mux_map_enum, 231 AFE_HDMI_CONN0, 232 HDMI_O_7_SFT, 233 HDMI_O_7_MASK, 234 hdmi_conn_mux_map, 235 hdmi_conn_mux_map_value); 236 237 static const struct snd_kcontrol_new hdmi_ch7_mux_control = 238 SOC_DAPM_ENUM("HDMI_CH7_MUX", hdmi_ch7_mux_map_enum); 239 240 enum { 241 SUPPLY_SEQ_APLL, 242 SUPPLY_SEQ_TDM_MCK_EN, 243 SUPPLY_SEQ_TDM_BCK_EN, 244 }; 245 246 static int mtk_tdm_bck_en_event(struct snd_soc_dapm_widget *w, 247 struct snd_kcontrol *kcontrol, 248 int event) 249 { 250 struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm); 251 struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt); 252 struct mt8183_afe_private *afe_priv = afe->platform_priv; 253 struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[MT8183_DAI_TDM]; 254 255 dev_info(cmpnt->dev, "%s(), name %s, event 0x%x\n", 256 __func__, w->name, event); 257 258 switch (event) { 259 case SND_SOC_DAPM_PRE_PMU: 260 mt8183_mck_enable(afe, tdm_priv->bck_id, tdm_priv->bck_rate); 261 break; 262 case SND_SOC_DAPM_POST_PMD: 263 mt8183_mck_disable(afe, tdm_priv->bck_id); 264 break; 265 default: 266 break; 267 } 268 269 return 0; 270 } 271 272 static int mtk_tdm_mck_en_event(struct snd_soc_dapm_widget *w, 273 struct snd_kcontrol *kcontrol, 274 int event) 275 { 276 struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm); 277 struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt); 278 struct mt8183_afe_private *afe_priv = afe->platform_priv; 279 struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[MT8183_DAI_TDM]; 280 281 dev_info(cmpnt->dev, "%s(), name %s, event 0x%x\n", 282 __func__, w->name, event); 283 284 switch (event) { 285 case SND_SOC_DAPM_PRE_PMU: 286 mt8183_mck_enable(afe, tdm_priv->mclk_id, tdm_priv->mclk_rate); 287 break; 288 case SND_SOC_DAPM_POST_PMD: 289 tdm_priv->mclk_rate = 0; 290 mt8183_mck_disable(afe, tdm_priv->mclk_id); 291 break; 292 default: 293 break; 294 } 295 296 return 0; 297 } 298 299 static const struct snd_soc_dapm_widget mtk_dai_tdm_widgets[] = { 300 SND_SOC_DAPM_MUX("HDMI_CH0_MUX", SND_SOC_NOPM, 0, 0, 301 &hdmi_ch0_mux_control), 302 SND_SOC_DAPM_MUX("HDMI_CH1_MUX", SND_SOC_NOPM, 0, 0, 303 &hdmi_ch1_mux_control), 304 SND_SOC_DAPM_MUX("HDMI_CH2_MUX", SND_SOC_NOPM, 0, 0, 305 &hdmi_ch2_mux_control), 306 SND_SOC_DAPM_MUX("HDMI_CH3_MUX", SND_SOC_NOPM, 0, 0, 307 &hdmi_ch3_mux_control), 308 SND_SOC_DAPM_MUX("HDMI_CH4_MUX", SND_SOC_NOPM, 0, 0, 309 &hdmi_ch4_mux_control), 310 SND_SOC_DAPM_MUX("HDMI_CH5_MUX", SND_SOC_NOPM, 0, 0, 311 &hdmi_ch5_mux_control), 312 SND_SOC_DAPM_MUX("HDMI_CH6_MUX", SND_SOC_NOPM, 0, 0, 313 &hdmi_ch6_mux_control), 314 SND_SOC_DAPM_MUX("HDMI_CH7_MUX", SND_SOC_NOPM, 0, 0, 315 &hdmi_ch7_mux_control), 316 317 SND_SOC_DAPM_CLOCK_SUPPLY("aud_tdm_clk"), 318 319 SND_SOC_DAPM_SUPPLY_S("TDM_BCK", SUPPLY_SEQ_TDM_BCK_EN, 320 SND_SOC_NOPM, 0, 0, 321 mtk_tdm_bck_en_event, 322 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), 323 324 SND_SOC_DAPM_SUPPLY_S("TDM_MCK", SUPPLY_SEQ_TDM_MCK_EN, 325 SND_SOC_NOPM, 0, 0, 326 mtk_tdm_mck_en_event, 327 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), 328 }; 329 330 static int mtk_afe_tdm_apll_connect(struct snd_soc_dapm_widget *source, 331 struct snd_soc_dapm_widget *sink) 332 { 333 struct snd_soc_dapm_widget *w = sink; 334 struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm); 335 struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt); 336 struct mt8183_afe_private *afe_priv = afe->platform_priv; 337 struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[MT8183_DAI_TDM]; 338 int cur_apll; 339 340 /* which apll */ 341 cur_apll = mt8183_get_apll_by_name(afe, source->name); 342 343 return (tdm_priv->mclk_apll == cur_apll) ? 1 : 0; 344 } 345 346 static const struct snd_soc_dapm_route mtk_dai_tdm_routes[] = { 347 {"HDMI_CH0_MUX", "CH0", "HDMI"}, 348 {"HDMI_CH0_MUX", "CH1", "HDMI"}, 349 {"HDMI_CH0_MUX", "CH2", "HDMI"}, 350 {"HDMI_CH0_MUX", "CH3", "HDMI"}, 351 {"HDMI_CH0_MUX", "CH4", "HDMI"}, 352 {"HDMI_CH0_MUX", "CH5", "HDMI"}, 353 {"HDMI_CH0_MUX", "CH6", "HDMI"}, 354 {"HDMI_CH0_MUX", "CH7", "HDMI"}, 355 356 {"HDMI_CH1_MUX", "CH0", "HDMI"}, 357 {"HDMI_CH1_MUX", "CH1", "HDMI"}, 358 {"HDMI_CH1_MUX", "CH2", "HDMI"}, 359 {"HDMI_CH1_MUX", "CH3", "HDMI"}, 360 {"HDMI_CH1_MUX", "CH4", "HDMI"}, 361 {"HDMI_CH1_MUX", "CH5", "HDMI"}, 362 {"HDMI_CH1_MUX", "CH6", "HDMI"}, 363 {"HDMI_CH1_MUX", "CH7", "HDMI"}, 364 365 {"HDMI_CH2_MUX", "CH0", "HDMI"}, 366 {"HDMI_CH2_MUX", "CH1", "HDMI"}, 367 {"HDMI_CH2_MUX", "CH2", "HDMI"}, 368 {"HDMI_CH2_MUX", "CH3", "HDMI"}, 369 {"HDMI_CH2_MUX", "CH4", "HDMI"}, 370 {"HDMI_CH2_MUX", "CH5", "HDMI"}, 371 {"HDMI_CH2_MUX", "CH6", "HDMI"}, 372 {"HDMI_CH2_MUX", "CH7", "HDMI"}, 373 374 {"HDMI_CH3_MUX", "CH0", "HDMI"}, 375 {"HDMI_CH3_MUX", "CH1", "HDMI"}, 376 {"HDMI_CH3_MUX", "CH2", "HDMI"}, 377 {"HDMI_CH3_MUX", "CH3", "HDMI"}, 378 {"HDMI_CH3_MUX", "CH4", "HDMI"}, 379 {"HDMI_CH3_MUX", "CH5", "HDMI"}, 380 {"HDMI_CH3_MUX", "CH6", "HDMI"}, 381 {"HDMI_CH3_MUX", "CH7", "HDMI"}, 382 383 {"HDMI_CH4_MUX", "CH0", "HDMI"}, 384 {"HDMI_CH4_MUX", "CH1", "HDMI"}, 385 {"HDMI_CH4_MUX", "CH2", "HDMI"}, 386 {"HDMI_CH4_MUX", "CH3", "HDMI"}, 387 {"HDMI_CH4_MUX", "CH4", "HDMI"}, 388 {"HDMI_CH4_MUX", "CH5", "HDMI"}, 389 {"HDMI_CH4_MUX", "CH6", "HDMI"}, 390 {"HDMI_CH4_MUX", "CH7", "HDMI"}, 391 392 {"HDMI_CH5_MUX", "CH0", "HDMI"}, 393 {"HDMI_CH5_MUX", "CH1", "HDMI"}, 394 {"HDMI_CH5_MUX", "CH2", "HDMI"}, 395 {"HDMI_CH5_MUX", "CH3", "HDMI"}, 396 {"HDMI_CH5_MUX", "CH4", "HDMI"}, 397 {"HDMI_CH5_MUX", "CH5", "HDMI"}, 398 {"HDMI_CH5_MUX", "CH6", "HDMI"}, 399 {"HDMI_CH5_MUX", "CH7", "HDMI"}, 400 401 {"HDMI_CH6_MUX", "CH0", "HDMI"}, 402 {"HDMI_CH6_MUX", "CH1", "HDMI"}, 403 {"HDMI_CH6_MUX", "CH2", "HDMI"}, 404 {"HDMI_CH6_MUX", "CH3", "HDMI"}, 405 {"HDMI_CH6_MUX", "CH4", "HDMI"}, 406 {"HDMI_CH6_MUX", "CH5", "HDMI"}, 407 {"HDMI_CH6_MUX", "CH6", "HDMI"}, 408 {"HDMI_CH6_MUX", "CH7", "HDMI"}, 409 410 {"HDMI_CH7_MUX", "CH0", "HDMI"}, 411 {"HDMI_CH7_MUX", "CH1", "HDMI"}, 412 {"HDMI_CH7_MUX", "CH2", "HDMI"}, 413 {"HDMI_CH7_MUX", "CH3", "HDMI"}, 414 {"HDMI_CH7_MUX", "CH4", "HDMI"}, 415 {"HDMI_CH7_MUX", "CH5", "HDMI"}, 416 {"HDMI_CH7_MUX", "CH6", "HDMI"}, 417 {"HDMI_CH7_MUX", "CH7", "HDMI"}, 418 419 {"TDM", NULL, "HDMI_CH0_MUX"}, 420 {"TDM", NULL, "HDMI_CH1_MUX"}, 421 {"TDM", NULL, "HDMI_CH2_MUX"}, 422 {"TDM", NULL, "HDMI_CH3_MUX"}, 423 {"TDM", NULL, "HDMI_CH4_MUX"}, 424 {"TDM", NULL, "HDMI_CH5_MUX"}, 425 {"TDM", NULL, "HDMI_CH6_MUX"}, 426 {"TDM", NULL, "HDMI_CH7_MUX"}, 427 428 {"TDM", NULL, "aud_tdm_clk"}, 429 {"TDM", NULL, "TDM_BCK"}, 430 {"TDM_BCK", NULL, "TDM_MCK"}, 431 {"TDM_MCK", NULL, APLL1_W_NAME, mtk_afe_tdm_apll_connect}, 432 {"TDM_MCK", NULL, APLL2_W_NAME, mtk_afe_tdm_apll_connect}, 433 }; 434 435 /* dai ops */ 436 static int mtk_dai_tdm_cal_mclk(struct mtk_base_afe *afe, 437 struct mtk_afe_tdm_priv *tdm_priv, 438 int freq) 439 { 440 int apll; 441 int apll_rate; 442 443 apll = mt8183_get_apll_by_rate(afe, freq); 444 apll_rate = mt8183_get_apll_rate(afe, apll); 445 446 if (!freq || freq > apll_rate) { 447 dev_warn(afe->dev, 448 "%s(), freq(%d Hz) invalid\n", __func__, freq); 449 return -EINVAL; 450 } 451 452 if (apll_rate % freq != 0) { 453 dev_warn(afe->dev, 454 "%s(), APLL cannot generate %d Hz", __func__, freq); 455 return -EINVAL; 456 } 457 458 tdm_priv->mclk_rate = freq; 459 tdm_priv->mclk_apll = apll; 460 461 return 0; 462 } 463 464 static int mtk_dai_tdm_hw_params(struct snd_pcm_substream *substream, 465 struct snd_pcm_hw_params *params, 466 struct snd_soc_dai *dai) 467 { 468 struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai); 469 struct mt8183_afe_private *afe_priv = afe->platform_priv; 470 int tdm_id = dai->id; 471 struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[tdm_id]; 472 unsigned int tdm_out_mode = tdm_priv->tdm_out_mode; 473 unsigned int rate = params_rate(params); 474 unsigned int channels = params_channels(params); 475 unsigned int out_channels_per_sdata = 476 get_tdm_ch_per_sdata(tdm_out_mode, channels); 477 snd_pcm_format_t format = params_format(params); 478 unsigned int tdm_con = 0; 479 480 /* calculate mclk_rate, if not set explicitly */ 481 if (!tdm_priv->mclk_rate) { 482 tdm_priv->mclk_rate = rate * tdm_priv->mclk_multiple; 483 mtk_dai_tdm_cal_mclk(afe, 484 tdm_priv, 485 tdm_priv->mclk_rate); 486 } 487 488 /* calculate bck */ 489 tdm_priv->bck_rate = rate * 490 out_channels_per_sdata * 491 snd_pcm_format_physical_width(format); 492 493 if (tdm_priv->bck_rate > tdm_priv->mclk_rate) 494 dev_warn(afe->dev, "%s(), bck_rate > mclk_rate rate", __func__); 495 496 if (tdm_priv->mclk_rate % tdm_priv->bck_rate != 0) 497 dev_warn(afe->dev, "%s(), bck cannot generate", __func__); 498 499 dev_info(afe->dev, "%s(), id %d, rate %d, channels %d, format %d, mclk_rate %d, bck_rate %d\n", 500 __func__, 501 tdm_id, rate, channels, format, 502 tdm_priv->mclk_rate, tdm_priv->bck_rate); 503 dev_info(afe->dev, "%s(), out_channels_per_sdata = %d\n", 504 __func__, out_channels_per_sdata); 505 506 /* set tdm */ 507 if (tdm_priv->bck_invert) 508 regmap_update_bits(afe->regmap, AUDIO_TOP_CON3, 509 BCK_INVERSE_MASK_SFT, 510 0x1 << BCK_INVERSE_SFT); 511 512 if (tdm_priv->lck_invert) 513 tdm_con |= 1 << LRCK_INVERSE_SFT; 514 515 if (tdm_priv->tdm_out_mode == TDM_OUT_I2S) { 516 tdm_con |= 1 << DELAY_DATA_SFT; 517 tdm_con |= get_tdm_lrck_width(format) << LRCK_TDM_WIDTH_SFT; 518 } else if (tdm_priv->tdm_out_mode == TDM_OUT_TDM) { 519 tdm_con |= 0 << DELAY_DATA_SFT; 520 tdm_con |= 0 << LRCK_TDM_WIDTH_SFT; 521 } 522 523 tdm_con |= 1 << LEFT_ALIGN_SFT; 524 tdm_con |= get_tdm_wlen(format) << WLEN_SFT; 525 tdm_con |= get_tdm_ch(out_channels_per_sdata) << CHANNEL_NUM_SFT; 526 tdm_con |= get_tdm_channel_bck(format) << CHANNEL_BCK_CYCLES_SFT; 527 regmap_write(afe->regmap, AFE_TDM_CON1, tdm_con); 528 529 if (out_channels_per_sdata == 2) { 530 switch (channels) { 531 case 1: 532 case 2: 533 tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT; 534 tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT1_SFT; 535 tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT2_SFT; 536 tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT3_SFT; 537 break; 538 case 3: 539 case 4: 540 tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT; 541 tdm_con |= TDM_CH_START_O32_O33 << ST_CH_PAIR_SOUT1_SFT; 542 tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT2_SFT; 543 tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT3_SFT; 544 break; 545 case 5: 546 case 6: 547 tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT; 548 tdm_con |= TDM_CH_START_O32_O33 << ST_CH_PAIR_SOUT1_SFT; 549 tdm_con |= TDM_CH_START_O34_O35 << ST_CH_PAIR_SOUT2_SFT; 550 tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT3_SFT; 551 break; 552 case 7: 553 case 8: 554 tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT; 555 tdm_con |= TDM_CH_START_O32_O33 << ST_CH_PAIR_SOUT1_SFT; 556 tdm_con |= TDM_CH_START_O34_O35 << ST_CH_PAIR_SOUT2_SFT; 557 tdm_con |= TDM_CH_START_O36_O37 << ST_CH_PAIR_SOUT3_SFT; 558 break; 559 default: 560 tdm_con = 0; 561 } 562 } else { 563 tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT; 564 tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT1_SFT; 565 tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT2_SFT; 566 tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT3_SFT; 567 } 568 569 regmap_write(afe->regmap, AFE_TDM_CON2, tdm_con); 570 571 regmap_update_bits(afe->regmap, AFE_HDMI_OUT_CON0, 572 AFE_HDMI_OUT_CH_NUM_MASK_SFT, 573 channels << AFE_HDMI_OUT_CH_NUM_SFT); 574 575 regmap_update_bits(afe->regmap, AFE_HDMI_OUT_CON0, 576 AFE_HDMI_OUT_BIT_WIDTH_MASK_SFT, 577 get_hdmi_wlen(format) << AFE_HDMI_OUT_BIT_WIDTH_SFT); 578 return 0; 579 } 580 581 static int mtk_dai_tdm_trigger(struct snd_pcm_substream *substream, 582 int cmd, 583 struct snd_soc_dai *dai) 584 { 585 struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai); 586 587 switch (cmd) { 588 case SNDRV_PCM_TRIGGER_START: 589 case SNDRV_PCM_TRIGGER_RESUME: 590 /* enable Out control */ 591 regmap_update_bits(afe->regmap, AFE_HDMI_OUT_CON0, 592 AFE_HDMI_OUT_ON_MASK_SFT, 593 0x1 << AFE_HDMI_OUT_ON_SFT); 594 /* enable tdm */ 595 regmap_update_bits(afe->regmap, AFE_TDM_CON1, 596 TDM_EN_MASK_SFT, 0x1 << TDM_EN_SFT); 597 break; 598 case SNDRV_PCM_TRIGGER_STOP: 599 case SNDRV_PCM_TRIGGER_SUSPEND: 600 /* disable tdm */ 601 regmap_update_bits(afe->regmap, AFE_TDM_CON1, 602 TDM_EN_MASK_SFT, 0); 603 /* disable Out control */ 604 regmap_update_bits(afe->regmap, AFE_HDMI_OUT_CON0, 605 AFE_HDMI_OUT_ON_MASK_SFT, 606 0); 607 break; 608 default: 609 return -EINVAL; 610 } 611 612 return 0; 613 } 614 615 static int mtk_dai_tdm_set_sysclk(struct snd_soc_dai *dai, 616 int clk_id, unsigned int freq, int dir) 617 { 618 struct mtk_base_afe *afe = dev_get_drvdata(dai->dev); 619 struct mt8183_afe_private *afe_priv = afe->platform_priv; 620 struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai->id]; 621 622 if (!tdm_priv) { 623 dev_warn(afe->dev, "%s(), tdm_priv == NULL", __func__); 624 return -EINVAL; 625 } 626 627 if (dir != SND_SOC_CLOCK_OUT) { 628 dev_warn(afe->dev, "%s(), dir != SND_SOC_CLOCK_OUT", __func__); 629 return -EINVAL; 630 } 631 632 dev_info(afe->dev, "%s(), freq %d\n", __func__, freq); 633 634 return mtk_dai_tdm_cal_mclk(afe, tdm_priv, freq); 635 } 636 637 static int mtk_dai_tdm_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) 638 { 639 struct mtk_base_afe *afe = dev_get_drvdata(dai->dev); 640 struct mt8183_afe_private *afe_priv = afe->platform_priv; 641 struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai->id]; 642 643 if (!tdm_priv) { 644 dev_warn(afe->dev, "%s(), tdm_priv == NULL", __func__); 645 return -EINVAL; 646 } 647 648 /* DAI mode*/ 649 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 650 case SND_SOC_DAIFMT_I2S: 651 tdm_priv->tdm_out_mode = TDM_OUT_I2S; 652 break; 653 case SND_SOC_DAIFMT_DSP_A: 654 tdm_priv->tdm_out_mode = TDM_OUT_TDM; 655 break; 656 default: 657 tdm_priv->tdm_out_mode = TDM_OUT_I2S; 658 } 659 660 /* DAI clock inversion*/ 661 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 662 case SND_SOC_DAIFMT_NB_NF: 663 tdm_priv->bck_invert = TDM_BCK_NON_INV; 664 tdm_priv->lck_invert = TDM_LCK_NON_INV; 665 break; 666 case SND_SOC_DAIFMT_NB_IF: 667 tdm_priv->bck_invert = TDM_BCK_NON_INV; 668 tdm_priv->lck_invert = TDM_LCK_INV; 669 break; 670 case SND_SOC_DAIFMT_IB_NF: 671 tdm_priv->bck_invert = TDM_BCK_INV; 672 tdm_priv->lck_invert = TDM_LCK_NON_INV; 673 break; 674 case SND_SOC_DAIFMT_IB_IF: 675 default: 676 tdm_priv->bck_invert = TDM_BCK_INV; 677 tdm_priv->lck_invert = TDM_LCK_INV; 678 break; 679 } 680 681 return 0; 682 } 683 684 static const struct snd_soc_dai_ops mtk_dai_tdm_ops = { 685 .hw_params = mtk_dai_tdm_hw_params, 686 .trigger = mtk_dai_tdm_trigger, 687 .set_sysclk = mtk_dai_tdm_set_sysclk, 688 .set_fmt = mtk_dai_tdm_set_fmt, 689 }; 690 691 /* dai driver */ 692 #define MTK_TDM_RATES (SNDRV_PCM_RATE_8000_48000 |\ 693 SNDRV_PCM_RATE_88200 |\ 694 SNDRV_PCM_RATE_96000 |\ 695 SNDRV_PCM_RATE_176400 |\ 696 SNDRV_PCM_RATE_192000) 697 698 #define MTK_TDM_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\ 699 SNDRV_PCM_FMTBIT_S24_LE |\ 700 SNDRV_PCM_FMTBIT_S32_LE) 701 702 static struct snd_soc_dai_driver mtk_dai_tdm_driver[] = { 703 { 704 .name = "TDM", 705 .id = MT8183_DAI_TDM, 706 .playback = { 707 .stream_name = "TDM", 708 .channels_min = 2, 709 .channels_max = 8, 710 .rates = MTK_TDM_RATES, 711 .formats = MTK_TDM_FORMATS, 712 }, 713 .ops = &mtk_dai_tdm_ops, 714 }, 715 }; 716 717 int mt8183_dai_tdm_register(struct mtk_base_afe *afe) 718 { 719 struct mt8183_afe_private *afe_priv = afe->platform_priv; 720 struct mtk_afe_tdm_priv *tdm_priv; 721 struct mtk_base_afe_dai *dai; 722 723 dai = devm_kzalloc(afe->dev, sizeof(*dai), GFP_KERNEL); 724 if (!dai) 725 return -ENOMEM; 726 727 list_add(&dai->list, &afe->sub_dais); 728 729 dai->dai_drivers = mtk_dai_tdm_driver; 730 dai->num_dai_drivers = ARRAY_SIZE(mtk_dai_tdm_driver); 731 732 dai->dapm_widgets = mtk_dai_tdm_widgets; 733 dai->num_dapm_widgets = ARRAY_SIZE(mtk_dai_tdm_widgets); 734 dai->dapm_routes = mtk_dai_tdm_routes; 735 dai->num_dapm_routes = ARRAY_SIZE(mtk_dai_tdm_routes); 736 737 tdm_priv = devm_kzalloc(afe->dev, sizeof(struct mtk_afe_tdm_priv), 738 GFP_KERNEL); 739 if (!tdm_priv) 740 return -ENOMEM; 741 742 tdm_priv->mclk_multiple = 128; 743 tdm_priv->bck_id = MT8183_I2S4_BCK; 744 tdm_priv->mclk_id = MT8183_I2S4_MCK; 745 746 afe_priv->dai_priv[MT8183_DAI_TDM] = tdm_priv; 747 return 0; 748 } 749