sound/soc/mediatek/mt8192/mt8192-dai-tdm.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 //
   3 // MediaTek ALSA SoC Audio DAI TDM Control
   4 //
   5 // Copyright (c) 2020 MediaTek Inc.
   6 // Author: Shane Chien <shane.chien@mediatek.com>
   7
   8 #include <linux/regmap.h>
   9 #include <sound/pcm_params.h>
  10
  11 #include "mt8192-afe-clk.h"
  12 #include "mt8192-afe-common.h"
  13 #include "mt8192-afe-gpio.h"
  14 #include "mt8192-interconnection.h"
  15
  16 struct mtk_afe_tdm_priv {
  17         int id;
  18         int bck_id;
  19         int bck_rate;
  20         int tdm_out_mode;
  21         int bck_invert;
  22         int lck_invert;
  23         int mclk_id;
  24         int mclk_multiple; /* according to sample rate */
  25         int mclk_rate;
  26         int mclk_apll;
  27 };
  28
  29 enum {
  30         TDM_OUT_I2S = 0,
  31         TDM_OUT_DSP_A = 1,
  32         TDM_OUT_DSP_B = 2,
  33 };
  34
  35 enum {
  36         TDM_BCK_NON_INV = 0,
  37         TDM_BCK_INV = 1,
  38 };
  39
  40 enum {
  41         TDM_LCK_NON_INV = 0,
  42         TDM_LCK_INV = 1,
  43 };
  44
  45 enum {
  46         TDM_WLEN_16_BIT = 1,
  47         TDM_WLEN_32_BIT = 2,
  48 };
  49
  50 enum {
  51         TDM_CHANNEL_BCK_16 = 0,
  52         TDM_CHANNEL_BCK_24 = 1,
  53         TDM_CHANNEL_BCK_32 = 2,
  54 };
  55
  56 enum {
  57         TDM_CHANNEL_NUM_2 = 0,
  58         TDM_CHANNEL_NUM_4 = 1,
  59         TDM_CHANNEL_NUM_8 = 2,
  60 };
  61
  62 enum  {
  63         TDM_CH_START_O30_O31 = 0,
  64         TDM_CH_START_O32_O33,
  65         TDM_CH_START_O34_O35,
  66         TDM_CH_START_O36_O37,
  67         TDM_CH_ZERO,
  68 };
  69
  70 static unsigned int get_tdm_wlen(snd_pcm_format_t format)
  71 {
  72         return snd_pcm_format_physical_width(format) <= 16 ?
  73                TDM_WLEN_16_BIT : TDM_WLEN_32_BIT;
  74 }
  75
  76 static unsigned int get_tdm_channel_bck(snd_pcm_format_t format)
  77 {
  78         return snd_pcm_format_physical_width(format) <= 16 ?
  79                TDM_CHANNEL_BCK_16 : TDM_CHANNEL_BCK_32;
  80 }
  81
  82 static unsigned int get_tdm_lrck_width(snd_pcm_format_t format)
  83 {
  84         return snd_pcm_format_physical_width(format) - 1;
  85 }
  86
  87 static unsigned int get_tdm_ch(unsigned int ch)
  88 {
  89         switch (ch) {
  90         case 1:
  91         case 2:
  92                 return TDM_CHANNEL_NUM_2;
  93         case 3:
  94         case 4:
  95                 return TDM_CHANNEL_NUM_4;
  96         case 5:
  97         case 6:
  98         case 7:
  99         case 8:
 100         default:
 101                 return TDM_CHANNEL_NUM_8;
 102         }
 103 }
 104
 105 static unsigned int get_tdm_ch_fixup(unsigned int channels)
 106 {
 107         if (channels > 4)
 108                 return 8;
 109         else if (channels > 2)
 110                 return 4;
 111         else
 112                 return 2;
 113 }
 114
 115 static unsigned int get_tdm_ch_per_sdata(unsigned int mode,
 116                                          unsigned int channels)
 117 {
 118         if (mode == TDM_OUT_DSP_A || mode == TDM_OUT_DSP_B)
 119                 return get_tdm_ch_fixup(channels);
 120         else
 121                 return 2;
 122 }
 123
 124 /* interconnection */
 125 enum {
 126         HDMI_CONN_CH0 = 0,
 127         HDMI_CONN_CH1,
 128         HDMI_CONN_CH2,
 129         HDMI_CONN_CH3,
 130         HDMI_CONN_CH4,
 131         HDMI_CONN_CH5,
 132         HDMI_CONN_CH6,
 133         HDMI_CONN_CH7,
 134 };
 135
 136 static const char *const hdmi_conn_mux_map[] = {
 137         "CH0", "CH1", "CH2", "CH3",
 138         "CH4", "CH5", "CH6", "CH7",
 139 };
 140
 141 static int hdmi_conn_mux_map_value[] = {
 142         HDMI_CONN_CH0,
 143         HDMI_CONN_CH1,
 144         HDMI_CONN_CH2,
 145         HDMI_CONN_CH3,
 146         HDMI_CONN_CH4,
 147         HDMI_CONN_CH5,
 148         HDMI_CONN_CH6,
 149         HDMI_CONN_CH7,
 150 };
 151
 152 static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch0_mux_map_enum,
 153                                   AFE_HDMI_CONN0,
 154                                   HDMI_O_0_SFT,
 155                                   HDMI_O_0_MASK,
 156                                   hdmi_conn_mux_map,
 157                                   hdmi_conn_mux_map_value);
 158
 159 static const struct snd_kcontrol_new hdmi_ch0_mux_control =
 160         SOC_DAPM_ENUM("HDMI_CH0_MUX", hdmi_ch0_mux_map_enum);
 161
 162 static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch1_mux_map_enum,
 163                                   AFE_HDMI_CONN0,
 164                                   HDMI_O_1_SFT,
 165                                   HDMI_O_1_MASK,
 166                                   hdmi_conn_mux_map,
 167                                   hdmi_conn_mux_map_value);
 168
 169 static const struct snd_kcontrol_new hdmi_ch1_mux_control =
 170         SOC_DAPM_ENUM("HDMI_CH1_MUX", hdmi_ch1_mux_map_enum);
 171
 172 static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch2_mux_map_enum,
 173                                   AFE_HDMI_CONN0,
 174                                   HDMI_O_2_SFT,
 175                                   HDMI_O_2_MASK,
 176                                   hdmi_conn_mux_map,
 177                                   hdmi_conn_mux_map_value);
 178
 179 static const struct snd_kcontrol_new hdmi_ch2_mux_control =
 180         SOC_DAPM_ENUM("HDMI_CH2_MUX", hdmi_ch2_mux_map_enum);
 181
 182 static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch3_mux_map_enum,
 183                                   AFE_HDMI_CONN0,
 184                                   HDMI_O_3_SFT,
 185                                   HDMI_O_3_MASK,
 186                                   hdmi_conn_mux_map,
 187                                   hdmi_conn_mux_map_value);
 188
 189 static const struct snd_kcontrol_new hdmi_ch3_mux_control =
 190         SOC_DAPM_ENUM("HDMI_CH3_MUX", hdmi_ch3_mux_map_enum);
 191
 192 static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch4_mux_map_enum,
 193                                   AFE_HDMI_CONN0,
 194                                   HDMI_O_4_SFT,
 195                                   HDMI_O_4_MASK,
 196                                   hdmi_conn_mux_map,
 197                                   hdmi_conn_mux_map_value);
 198
 199 static const struct snd_kcontrol_new hdmi_ch4_mux_control =
 200         SOC_DAPM_ENUM("HDMI_CH4_MUX", hdmi_ch4_mux_map_enum);
 201
 202 static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch5_mux_map_enum,
 203                                   AFE_HDMI_CONN0,
 204                                   HDMI_O_5_SFT,
 205                                   HDMI_O_5_MASK,
 206                                   hdmi_conn_mux_map,
 207                                   hdmi_conn_mux_map_value);
 208
 209 static const struct snd_kcontrol_new hdmi_ch5_mux_control =
 210         SOC_DAPM_ENUM("HDMI_CH5_MUX", hdmi_ch5_mux_map_enum);
 211
 212 static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch6_mux_map_enum,
 213                                   AFE_HDMI_CONN0,
 214                                   HDMI_O_6_SFT,
 215                                   HDMI_O_6_MASK,
 216                                   hdmi_conn_mux_map,
 217                                   hdmi_conn_mux_map_value);
 218
 219 static const struct snd_kcontrol_new hdmi_ch6_mux_control =
 220         SOC_DAPM_ENUM("HDMI_CH6_MUX", hdmi_ch6_mux_map_enum);
 221
 222 static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch7_mux_map_enum,
 223                                   AFE_HDMI_CONN0,
 224                                   HDMI_O_7_SFT,
 225                                   HDMI_O_7_MASK,
 226                                   hdmi_conn_mux_map,
 227                                   hdmi_conn_mux_map_value);
 228
 229 static const struct snd_kcontrol_new hdmi_ch7_mux_control =
 230         SOC_DAPM_ENUM("HDMI_CH7_MUX", hdmi_ch7_mux_map_enum);
 231
 232 enum {
 233         SUPPLY_SEQ_APLL,
 234         SUPPLY_SEQ_TDM_MCK_EN,
 235         SUPPLY_SEQ_TDM_BCK_EN,
 236         SUPPLY_SEQ_TDM_EN,
 237 };
 238
 239 static int get_tdm_id_by_name(const char *name)
 240 {
 241         return MT8192_DAI_TDM;
 242 }
 243
 244 static int mtk_tdm_en_event(struct snd_soc_dapm_widget *w,
 245                             struct snd_kcontrol *kcontrol,
 246                             int event)
 247 {
 248         struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
 249         struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt);
 250         struct mt8192_afe_private *afe_priv = afe->platform_priv;
 251         int dai_id = get_tdm_id_by_name(w->name);
 252         struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id];
 253
 254         if (!tdm_priv) {
 255                 dev_warn(afe->dev, "%s(), tdm_priv == NULL", __func__);
 256                 return -EINVAL;
 257         }
 258
 259         dev_info(cmpnt->dev, "%s(), name %s, event 0x%x\n",
 260                  __func__, w->name, event);
 261
 262         switch (event) {
 263         case SND_SOC_DAPM_PRE_PMU:
 264                 mt8192_afe_gpio_request(afe->dev, true, tdm_priv->id, 0);
 265                 break;
 266         case SND_SOC_DAPM_POST_PMD:
 267                 mt8192_afe_gpio_request(afe->dev, false, tdm_priv->id, 0);
 268                 break;
 269         default:
 270                 break;
 271         }
 272
 273         return 0;
 274 }
 275
 276 static int mtk_tdm_bck_en_event(struct snd_soc_dapm_widget *w,
 277                                 struct snd_kcontrol *kcontrol,
 278                                 int event)
 279 {
 280         struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
 281         struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt);
 282         struct mt8192_afe_private *afe_priv = afe->platform_priv;
 283         int dai_id = get_tdm_id_by_name(w->name);
 284         struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id];
 285
 286         if (!tdm_priv) {
 287                 dev_warn(afe->dev, "%s(), tdm_priv == NULL", __func__);
 288                 return -EINVAL;
 289         }
 290
 291         dev_info(cmpnt->dev, "%s(), name %s, event 0x%x, dai_id %d\n",
 292                  __func__, w->name, event, dai_id);
 293
 294         switch (event) {
 295         case SND_SOC_DAPM_PRE_PMU:
 296                 mt8192_mck_enable(afe, tdm_priv->bck_id, tdm_priv->bck_rate);
 297                 break;
 298         case SND_SOC_DAPM_POST_PMD:
 299                 mt8192_mck_disable(afe, tdm_priv->bck_id);
 300                 break;
 301         default:
 302                 break;
 303         }
 304
 305         return 0;
 306 }
 307
 308 static int mtk_tdm_mck_en_event(struct snd_soc_dapm_widget *w,
 309                                 struct snd_kcontrol *kcontrol,
 310                                 int event)
 311 {
 312         struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
 313         struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt);
 314         struct mt8192_afe_private *afe_priv = afe->platform_priv;
 315         int dai_id = get_tdm_id_by_name(w->name);
 316         struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id];
 317
 318         if (!tdm_priv) {
 319                 dev_warn(afe->dev, "%s(), tdm_priv == NULL", __func__);
 320                 return -EINVAL;
 321         }
 322
 323         dev_info(cmpnt->dev, "%s(), name %s, event 0x%x, dai_id %d\n",
 324                  __func__, w->name, event, dai_id);
 325
 326         switch (event) {
 327         case SND_SOC_DAPM_PRE_PMU:
 328                 mt8192_mck_enable(afe, tdm_priv->mclk_id, tdm_priv->mclk_rate);
 329                 break;
 330         case SND_SOC_DAPM_POST_PMD:
 331                 tdm_priv->mclk_rate = 0;
 332                 mt8192_mck_disable(afe, tdm_priv->mclk_id);
 333                 break;
 334         default:
 335                 break;
 336         }
 337
 338         return 0;
 339 }
 340
 341 static const struct snd_soc_dapm_widget mtk_dai_tdm_widgets[] = {
 342         SND_SOC_DAPM_MUX("HDMI_CH0_MUX", SND_SOC_NOPM, 0, 0,
 343                          &hdmi_ch0_mux_control),
 344         SND_SOC_DAPM_MUX("HDMI_CH1_MUX", SND_SOC_NOPM, 0, 0,
 345                          &hdmi_ch1_mux_control),
 346         SND_SOC_DAPM_MUX("HDMI_CH2_MUX", SND_SOC_NOPM, 0, 0,
 347                          &hdmi_ch2_mux_control),
 348         SND_SOC_DAPM_MUX("HDMI_CH3_MUX", SND_SOC_NOPM, 0, 0,
 349                          &hdmi_ch3_mux_control),
 350         SND_SOC_DAPM_MUX("HDMI_CH4_MUX", SND_SOC_NOPM, 0, 0,
 351                          &hdmi_ch4_mux_control),
 352         SND_SOC_DAPM_MUX("HDMI_CH5_MUX", SND_SOC_NOPM, 0, 0,
 353                          &hdmi_ch5_mux_control),
 354         SND_SOC_DAPM_MUX("HDMI_CH6_MUX", SND_SOC_NOPM, 0, 0,
 355                          &hdmi_ch6_mux_control),
 356         SND_SOC_DAPM_MUX("HDMI_CH7_MUX", SND_SOC_NOPM, 0, 0,
 357                          &hdmi_ch7_mux_control),
 358
 359         SND_SOC_DAPM_CLOCK_SUPPLY("aud_tdm_clk"),
 360
 361         SND_SOC_DAPM_SUPPLY_S("TDM_EN", SUPPLY_SEQ_TDM_EN,
 362                               AFE_TDM_CON1, TDM_EN_SFT, 0,
 363                               mtk_tdm_en_event,
 364                               SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 365
 366         SND_SOC_DAPM_SUPPLY_S("TDM_BCK", SUPPLY_SEQ_TDM_BCK_EN,
 367                               SND_SOC_NOPM, 0, 0,
 368                               mtk_tdm_bck_en_event,
 369                               SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 370
 371         SND_SOC_DAPM_SUPPLY_S("TDM_MCK", SUPPLY_SEQ_TDM_MCK_EN,
 372                               SND_SOC_NOPM, 0, 0,
 373                               mtk_tdm_mck_en_event,
 374                               SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 375 };
 376
 377 static int mtk_afe_tdm_apll_connect(struct snd_soc_dapm_widget *source,
 378                                     struct snd_soc_dapm_widget *sink)
 379 {
 380         struct snd_soc_dapm_widget *w = sink;
 381         struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
 382         struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt);
 383         struct mt8192_afe_private *afe_priv = afe->platform_priv;
 384         int dai_id = get_tdm_id_by_name(w->name);
 385         struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id];
 386         int cur_apll;
 387
 388         /* which apll */
 389         cur_apll = mt8192_get_apll_by_name(afe, source->name);
 390
 391         return (tdm_priv->mclk_apll == cur_apll) ? 1 : 0;
 392 }
 393
 394 static const struct snd_soc_dapm_route mtk_dai_tdm_routes[] = {
 395         {"HDMI_CH0_MUX", "CH0", "HDMI"},
 396         {"HDMI_CH0_MUX", "CH1", "HDMI"},
 397         {"HDMI_CH0_MUX", "CH2", "HDMI"},
 398         {"HDMI_CH0_MUX", "CH3", "HDMI"},
 399         {"HDMI_CH0_MUX", "CH4", "HDMI"},
 400         {"HDMI_CH0_MUX", "CH5", "HDMI"},
 401         {"HDMI_CH0_MUX", "CH6", "HDMI"},
 402         {"HDMI_CH0_MUX", "CH7", "HDMI"},
 403
 404         {"HDMI_CH1_MUX", "CH0", "HDMI"},
 405         {"HDMI_CH1_MUX", "CH1", "HDMI"},
 406         {"HDMI_CH1_MUX", "CH2", "HDMI"},
 407         {"HDMI_CH1_MUX", "CH3", "HDMI"},
 408         {"HDMI_CH1_MUX", "CH4", "HDMI"},
 409         {"HDMI_CH1_MUX", "CH5", "HDMI"},
 410         {"HDMI_CH1_MUX", "CH6", "HDMI"},
 411         {"HDMI_CH1_MUX", "CH7", "HDMI"},
 412
 413         {"HDMI_CH2_MUX", "CH0", "HDMI"},
 414         {"HDMI_CH2_MUX", "CH1", "HDMI"},
 415         {"HDMI_CH2_MUX", "CH2", "HDMI"},
 416         {"HDMI_CH2_MUX", "CH3", "HDMI"},
 417         {"HDMI_CH2_MUX", "CH4", "HDMI"},
 418         {"HDMI_CH2_MUX", "CH5", "HDMI"},
 419         {"HDMI_CH2_MUX", "CH6", "HDMI"},
 420         {"HDMI_CH2_MUX", "CH7", "HDMI"},
 421
 422         {"HDMI_CH3_MUX", "CH0", "HDMI"},
 423         {"HDMI_CH3_MUX", "CH1", "HDMI"},
 424         {"HDMI_CH3_MUX", "CH2", "HDMI"},
 425         {"HDMI_CH3_MUX", "CH3", "HDMI"},
 426         {"HDMI_CH3_MUX", "CH4", "HDMI"},
 427         {"HDMI_CH3_MUX", "CH5", "HDMI"},
 428         {"HDMI_CH3_MUX", "CH6", "HDMI"},
 429         {"HDMI_CH3_MUX", "CH7", "HDMI"},
 430
 431         {"HDMI_CH4_MUX", "CH0", "HDMI"},
 432         {"HDMI_CH4_MUX", "CH1", "HDMI"},
 433         {"HDMI_CH4_MUX", "CH2", "HDMI"},
 434         {"HDMI_CH4_MUX", "CH3", "HDMI"},
 435         {"HDMI_CH4_MUX", "CH4", "HDMI"},
 436         {"HDMI_CH4_MUX", "CH5", "HDMI"},
 437         {"HDMI_CH4_MUX", "CH6", "HDMI"},
 438         {"HDMI_CH4_MUX", "CH7", "HDMI"},
 439
 440         {"HDMI_CH5_MUX", "CH0", "HDMI"},
 441         {"HDMI_CH5_MUX", "CH1", "HDMI"},
 442         {"HDMI_CH5_MUX", "CH2", "HDMI"},
 443         {"HDMI_CH5_MUX", "CH3", "HDMI"},
 444         {"HDMI_CH5_MUX", "CH4", "HDMI"},
 445         {"HDMI_CH5_MUX", "CH5", "HDMI"},
 446         {"HDMI_CH5_MUX", "CH6", "HDMI"},
 447         {"HDMI_CH5_MUX", "CH7", "HDMI"},
 448
 449         {"HDMI_CH6_MUX", "CH0", "HDMI"},
 450         {"HDMI_CH6_MUX", "CH1", "HDMI"},
 451         {"HDMI_CH6_MUX", "CH2", "HDMI"},
 452         {"HDMI_CH6_MUX", "CH3", "HDMI"},
 453         {"HDMI_CH6_MUX", "CH4", "HDMI"},
 454         {"HDMI_CH6_MUX", "CH5", "HDMI"},
 455         {"HDMI_CH6_MUX", "CH6", "HDMI"},
 456         {"HDMI_CH6_MUX", "CH7", "HDMI"},
 457
 458         {"HDMI_CH7_MUX", "CH0", "HDMI"},
 459         {"HDMI_CH7_MUX", "CH1", "HDMI"},
 460         {"HDMI_CH7_MUX", "CH2", "HDMI"},
 461         {"HDMI_CH7_MUX", "CH3", "HDMI"},
 462         {"HDMI_CH7_MUX", "CH4", "HDMI"},
 463         {"HDMI_CH7_MUX", "CH5", "HDMI"},
 464         {"HDMI_CH7_MUX", "CH6", "HDMI"},
 465         {"HDMI_CH7_MUX", "CH7", "HDMI"},
 466
 467         {"TDM", NULL, "HDMI_CH0_MUX"},
 468         {"TDM", NULL, "HDMI_CH1_MUX"},
 469         {"TDM", NULL, "HDMI_CH2_MUX"},
 470         {"TDM", NULL, "HDMI_CH3_MUX"},
 471         {"TDM", NULL, "HDMI_CH4_MUX"},
 472         {"TDM", NULL, "HDMI_CH5_MUX"},
 473         {"TDM", NULL, "HDMI_CH6_MUX"},
 474         {"TDM", NULL, "HDMI_CH7_MUX"},
 475
 476         {"TDM", NULL, "aud_tdm_clk"},
 477         {"TDM", NULL, "TDM_BCK"},
 478         {"TDM", NULL, "TDM_EN"},
 479         {"TDM_BCK", NULL, "TDM_MCK"},
 480         {"TDM_MCK", NULL, APLL1_W_NAME, mtk_afe_tdm_apll_connect},
 481         {"TDM_MCK", NULL, APLL2_W_NAME, mtk_afe_tdm_apll_connect},
 482 };
 483
 484 /* dai ops */
 485 static int mtk_dai_tdm_cal_mclk(struct mtk_base_afe *afe,
 486                                 struct mtk_afe_tdm_priv *tdm_priv,
 487                                 int freq)
 488 {
 489         int apll;
 490         int apll_rate;
 491
 492         apll = mt8192_get_apll_by_rate(afe, freq);
 493         apll_rate = mt8192_get_apll_rate(afe, apll);
 494
 495         if (!freq || freq > apll_rate) {
 496                 dev_warn(afe->dev,
 497                          "%s(), freq(%d Hz) invalid\n", __func__, freq);
 498                 return -EINVAL;
 499         }
 500
 501         if (apll_rate % freq != 0) {
 502                 dev_warn(afe->dev,
 503                          "%s(), APLL cannot generate %d Hz", __func__, freq);
 504                 return -EINVAL;
 505         }
 506
 507         tdm_priv->mclk_rate = freq;
 508         tdm_priv->mclk_apll = apll;
 509
 510         return 0;
 511 }
 512
 513 static int mtk_dai_tdm_hw_params(struct snd_pcm_substream *substream,
 514                                  struct snd_pcm_hw_params *params,
 515                                  struct snd_soc_dai *dai)
 516 {
 517         struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
 518         struct mt8192_afe_private *afe_priv = afe->platform_priv;
 519         int tdm_id = dai->id;
 520         struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[tdm_id];
 521         unsigned int tdm_out_mode = tdm_priv->tdm_out_mode;
 522         unsigned int rate = params_rate(params);
 523         unsigned int channels = params_channels(params);
 524         unsigned int out_channels_per_sdata =
 525                 get_tdm_ch_per_sdata(tdm_out_mode, channels);
 526         snd_pcm_format_t format = params_format(params);
 527         unsigned int tdm_con = 0;
 528
 529         /* calculate mclk_rate, if not set explicitly */
 530         if (!tdm_priv->mclk_rate) {
 531                 tdm_priv->mclk_rate = rate * tdm_priv->mclk_multiple;
 532                 mtk_dai_tdm_cal_mclk(afe,
 533                                      tdm_priv,
 534                                      tdm_priv->mclk_rate);
 535         }
 536
 537         /* calculate bck */
 538         tdm_priv->bck_rate = rate *
 539                              out_channels_per_sdata *
 540                              snd_pcm_format_physical_width(format);
 541
 542         if (tdm_priv->bck_rate > tdm_priv->mclk_rate)
 543                 dev_warn(afe->dev, "%s(), bck_rate > mclk_rate rate", __func__);
 544
 545         if (tdm_priv->mclk_rate % tdm_priv->bck_rate != 0)
 546                 dev_warn(afe->dev, "%s(), bck cannot generate", __func__);
 547
 548         dev_info(afe->dev, "%s(), id %d, rate %d, channels %d, format %d, mclk_rate %d, bck_rate %d\n",
 549                  __func__,
 550                  tdm_id, rate, channels, format,
 551                  tdm_priv->mclk_rate, tdm_priv->bck_rate);
 552
 553         dev_info(afe->dev, "%s(), out_channels_per_sdata = %d\n",
 554                  __func__, out_channels_per_sdata);
 555
 556         /* set tdm */
 557         if (tdm_priv->bck_invert)
 558                 tdm_con |= 1 << BCK_INVERSE_SFT;
 559
 560         if (tdm_priv->lck_invert)
 561                 tdm_con |= 1 << LRCK_INVERSE_SFT;
 562
 563         if (tdm_priv->tdm_out_mode == TDM_OUT_I2S) {
 564                 tdm_con |= 1 << DELAY_DATA_SFT;
 565                 tdm_con |= get_tdm_lrck_width(format) << LRCK_TDM_WIDTH_SFT;
 566         } else if (tdm_priv->tdm_out_mode == TDM_OUT_DSP_A) {
 567                 tdm_con |= 0 << DELAY_DATA_SFT;
 568                 tdm_con |= 0 << LRCK_TDM_WIDTH_SFT;
 569         } else if (tdm_priv->tdm_out_mode == TDM_OUT_DSP_B) {
 570                 tdm_con |= 1 << DELAY_DATA_SFT;
 571                 tdm_con |= 0 << LRCK_TDM_WIDTH_SFT;
 572         }
 573
 574         tdm_con |= 1 << LEFT_ALIGN_SFT;
 575         tdm_con |= get_tdm_wlen(format) << WLEN_SFT;
 576         tdm_con |= get_tdm_ch(out_channels_per_sdata) << CHANNEL_NUM_SFT;
 577         tdm_con |= get_tdm_channel_bck(format) << CHANNEL_BCK_CYCLES_SFT;
 578         regmap_write(afe->regmap, AFE_TDM_CON1, tdm_con);
 579
 580         if (out_channels_per_sdata == 2) {
 581                 switch (channels) {
 582                 case 1:
 583                 case 2:
 584                         tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT;
 585                         tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT1_SFT;
 586                         tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT2_SFT;
 587                         tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT3_SFT;
 588                         break;
 589                 case 3:
 590                 case 4:
 591                         tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT;
 592                         tdm_con |= TDM_CH_START_O32_O33 << ST_CH_PAIR_SOUT1_SFT;
 593                         tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT2_SFT;
 594                         tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT3_SFT;
 595                         break;
 596                 case 5:
 597                 case 6:
 598                         tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT;
 599                         tdm_con |= TDM_CH_START_O32_O33 << ST_CH_PAIR_SOUT1_SFT;
 600                         tdm_con |= TDM_CH_START_O34_O35 << ST_CH_PAIR_SOUT2_SFT;
 601                         tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT3_SFT;
 602                         break;
 603                 case 7:
 604                 case 8:
 605                         tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT;
 606                         tdm_con |= TDM_CH_START_O32_O33 << ST_CH_PAIR_SOUT1_SFT;
 607                         tdm_con |= TDM_CH_START_O34_O35 << ST_CH_PAIR_SOUT2_SFT;
 608                         tdm_con |= TDM_CH_START_O36_O37 << ST_CH_PAIR_SOUT3_SFT;
 609                         break;
 610                 default:
 611                         tdm_con = 0;
 612                 }
 613         } else {
 614                 tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT;
 615                 tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT1_SFT;
 616                 tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT2_SFT;
 617                 tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT3_SFT;
 618         }
 619
 620         regmap_write(afe->regmap, AFE_TDM_CON2, tdm_con);
 621
 622         regmap_update_bits(afe->regmap, AFE_HDMI_OUT_CON0,
 623                            HDMI_CH_NUM_MASK_SFT,
 624                            channels << HDMI_CH_NUM_SFT);
 625         return 0;
 626 }
 627
 628 static int mtk_dai_tdm_set_sysclk(struct snd_soc_dai *dai,
 629                                   int clk_id, unsigned int freq, int dir)
 630 {
 631         struct mtk_base_afe *afe = dev_get_drvdata(dai->dev);
 632         struct mt8192_afe_private *afe_priv = afe->platform_priv;
 633         struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai->id];
 634
 635         if (!tdm_priv) {
 636                 dev_warn(afe->dev, "%s(), tdm_priv == NULL", __func__);
 637                 return -EINVAL;
 638         }
 639
 640         if (dir != SND_SOC_CLOCK_OUT) {
 641                 dev_warn(afe->dev, "%s(), dir != SND_SOC_CLOCK_OUT", __func__);
 642                 return -EINVAL;
 643         }
 644
 645         dev_info(afe->dev, "%s(), freq %d\n", __func__, freq);
 646
 647         return mtk_dai_tdm_cal_mclk(afe, tdm_priv, freq);
 648 }
 649
 650 static int mtk_dai_tdm_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 651 {
 652         struct mtk_base_afe *afe = dev_get_drvdata(dai->dev);
 653         struct mt8192_afe_private *afe_priv = afe->platform_priv;
 654         struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai->id];
 655
 656         if (!tdm_priv) {
 657                 dev_warn(afe->dev, "%s(), tdm_priv == NULL", __func__);
 658                 return -EINVAL;
 659         }
 660
 661         /* DAI mode*/
 662         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 663         case SND_SOC_DAIFMT_I2S:
 664                 tdm_priv->tdm_out_mode = TDM_OUT_I2S;
 665                 break;
 666         case SND_SOC_DAIFMT_DSP_A:
 667                 tdm_priv->tdm_out_mode = TDM_OUT_DSP_A;
 668                 break;
 669         case SND_SOC_DAIFMT_DSP_B:
 670                 tdm_priv->tdm_out_mode = TDM_OUT_DSP_B;
 671                 break;
 672         default:
 673                 tdm_priv->tdm_out_mode = TDM_OUT_I2S;
 674         }
 675
 676         /* DAI clock inversion*/
 677         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 678         case SND_SOC_DAIFMT_NB_NF:
 679                 tdm_priv->bck_invert = TDM_BCK_NON_INV;
 680                 tdm_priv->lck_invert = TDM_LCK_NON_INV;
 681                 break;
 682         case SND_SOC_DAIFMT_NB_IF:
 683                 tdm_priv->bck_invert = TDM_BCK_NON_INV;
 684                 tdm_priv->lck_invert = TDM_LCK_INV;
 685                 break;
 686         case SND_SOC_DAIFMT_IB_NF:
 687                 tdm_priv->bck_invert = TDM_BCK_INV;
 688                 tdm_priv->lck_invert = TDM_LCK_NON_INV;
 689                 break;
 690         case SND_SOC_DAIFMT_IB_IF:
 691         default:
 692                 tdm_priv->bck_invert = TDM_BCK_INV;
 693                 tdm_priv->lck_invert = TDM_LCK_INV;
 694                 break;
 695         }
 696
 697         return 0;
 698 }
 699
 700 static const struct snd_soc_dai_ops mtk_dai_tdm_ops = {
 701         .hw_params = mtk_dai_tdm_hw_params,
 702         .set_sysclk = mtk_dai_tdm_set_sysclk,
 703         .set_fmt = mtk_dai_tdm_set_fmt,
 704 };
 705
 706 /* dai driver */
 707 #define MTK_TDM_RATES (SNDRV_PCM_RATE_8000_48000 |\
 708                        SNDRV_PCM_RATE_88200 |\
 709                        SNDRV_PCM_RATE_96000 |\
 710                        SNDRV_PCM_RATE_176400 |\
 711                        SNDRV_PCM_RATE_192000)
 712
 713 #define MTK_TDM_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
 714                          SNDRV_PCM_FMTBIT_S24_LE |\
 715                          SNDRV_PCM_FMTBIT_S32_LE)
 716
 717 static struct snd_soc_dai_driver mtk_dai_tdm_driver[] = {
 718         {
 719                 .name = "TDM",
 720                 .id = MT8192_DAI_TDM,
 721                 .playback = {
 722                         .stream_name = "TDM",
 723                         .channels_min = 2,
 724                         .channels_max = 8,
 725                         .rates = MTK_TDM_RATES,
 726                         .formats = MTK_TDM_FORMATS,
 727                 },
 728                 .ops = &mtk_dai_tdm_ops,
 729         },
 730 };
 731
 732 static struct mtk_afe_tdm_priv *init_tdm_priv_data(struct mtk_base_afe *afe)
 733 {
 734         struct mtk_afe_tdm_priv *tdm_priv;
 735
 736         tdm_priv = devm_kzalloc(afe->dev, sizeof(struct mtk_afe_tdm_priv),
 737                                 GFP_KERNEL);
 738         if (!tdm_priv)
 739                 return NULL;
 740
 741         tdm_priv->mclk_multiple = 512;
 742         tdm_priv->bck_id = MT8192_I2S4_BCK;
 743         tdm_priv->mclk_id = MT8192_I2S4_MCK;
 744         tdm_priv->id = MT8192_DAI_TDM;
 745
 746         return tdm_priv;
 747 }
 748
 749 int mt8192_dai_tdm_register(struct mtk_base_afe *afe)
 750 {
 751         struct mt8192_afe_private *afe_priv = afe->platform_priv;
 752         struct mtk_afe_tdm_priv *tdm_priv;
 753         struct mtk_base_afe_dai *dai;
 754
 755         dev_info(afe->dev, "%s()\n", __func__);
 756
 757         dai = devm_kzalloc(afe->dev, sizeof(*dai), GFP_KERNEL);
 758         if (!dai)
 759                 return -ENOMEM;
 760
 761         list_add(&dai->list, &afe->sub_dais);
 762
 763         dai->dai_drivers = mtk_dai_tdm_driver;
 764         dai->num_dai_drivers = ARRAY_SIZE(mtk_dai_tdm_driver);
 765
 766         dai->dapm_widgets = mtk_dai_tdm_widgets;
 767         dai->num_dapm_widgets = ARRAY_SIZE(mtk_dai_tdm_widgets);
 768         dai->dapm_routes = mtk_dai_tdm_routes;
 769         dai->num_dapm_routes = ARRAY_SIZE(mtk_dai_tdm_routes);
 770
 771         tdm_priv = init_tdm_priv_data(afe);
 772         if (!tdm_priv)
 773                 return -ENOMEM;
 774
 775         afe_priv->dai_priv[MT8192_DAI_TDM] = tdm_priv;
 776
 777         return 0;
 778 }