linux/sound/soc/mediatek/mt6797/mt6797-dai-adda.c
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   1// SPDX-License-Identifier: GPL-2.0
   2//
   3// MediaTek ALSA SoC Audio DAI ADDA Control
   4//
   5// Copyright (c) 2018 MediaTek Inc.
   6// Author: KaiChieh Chuang <kaichieh.chuang@mediatek.com>
   7
   8#include <linux/regmap.h>
   9#include <linux/delay.h>
  10#include "mt6797-afe-common.h"
  11#include "mt6797-interconnection.h"
  12#include "mt6797-reg.h"
  13
  14enum {
  15        MTK_AFE_ADDA_DL_RATE_8K = 0,
  16        MTK_AFE_ADDA_DL_RATE_11K = 1,
  17        MTK_AFE_ADDA_DL_RATE_12K = 2,
  18        MTK_AFE_ADDA_DL_RATE_16K = 3,
  19        MTK_AFE_ADDA_DL_RATE_22K = 4,
  20        MTK_AFE_ADDA_DL_RATE_24K = 5,
  21        MTK_AFE_ADDA_DL_RATE_32K = 6,
  22        MTK_AFE_ADDA_DL_RATE_44K = 7,
  23        MTK_AFE_ADDA_DL_RATE_48K = 8,
  24        MTK_AFE_ADDA_DL_RATE_96K = 9,
  25        MTK_AFE_ADDA_DL_RATE_192K = 10,
  26};
  27
  28enum {
  29        MTK_AFE_ADDA_UL_RATE_8K = 0,
  30        MTK_AFE_ADDA_UL_RATE_16K = 1,
  31        MTK_AFE_ADDA_UL_RATE_32K = 2,
  32        MTK_AFE_ADDA_UL_RATE_48K = 3,
  33        MTK_AFE_ADDA_UL_RATE_96K = 4,
  34        MTK_AFE_ADDA_UL_RATE_192K = 5,
  35        MTK_AFE_ADDA_UL_RATE_48K_HD = 6,
  36};
  37
  38static unsigned int adda_dl_rate_transform(struct mtk_base_afe *afe,
  39                                           unsigned int rate)
  40{
  41        switch (rate) {
  42        case 8000:
  43                return MTK_AFE_ADDA_DL_RATE_8K;
  44        case 11025:
  45                return MTK_AFE_ADDA_DL_RATE_11K;
  46        case 12000:
  47                return MTK_AFE_ADDA_DL_RATE_12K;
  48        case 16000:
  49                return MTK_AFE_ADDA_DL_RATE_16K;
  50        case 22050:
  51                return MTK_AFE_ADDA_DL_RATE_22K;
  52        case 24000:
  53                return MTK_AFE_ADDA_DL_RATE_24K;
  54        case 32000:
  55                return MTK_AFE_ADDA_DL_RATE_32K;
  56        case 44100:
  57                return MTK_AFE_ADDA_DL_RATE_44K;
  58        case 48000:
  59                return MTK_AFE_ADDA_DL_RATE_48K;
  60        case 96000:
  61                return MTK_AFE_ADDA_DL_RATE_96K;
  62        case 192000:
  63                return MTK_AFE_ADDA_DL_RATE_192K;
  64        default:
  65                dev_warn(afe->dev, "%s(), rate %d invalid, use 48kHz!!!\n",
  66                         __func__, rate);
  67                return MTK_AFE_ADDA_DL_RATE_48K;
  68        }
  69}
  70
  71static unsigned int adda_ul_rate_transform(struct mtk_base_afe *afe,
  72                                           unsigned int rate)
  73{
  74        switch (rate) {
  75        case 8000:
  76                return MTK_AFE_ADDA_UL_RATE_8K;
  77        case 16000:
  78                return MTK_AFE_ADDA_UL_RATE_16K;
  79        case 32000:
  80                return MTK_AFE_ADDA_UL_RATE_32K;
  81        case 48000:
  82                return MTK_AFE_ADDA_UL_RATE_48K;
  83        case 96000:
  84                return MTK_AFE_ADDA_UL_RATE_96K;
  85        case 192000:
  86                return MTK_AFE_ADDA_UL_RATE_192K;
  87        default:
  88                dev_warn(afe->dev, "%s(), rate %d invalid, use 48kHz!!!\n",
  89                         __func__, rate);
  90                return MTK_AFE_ADDA_UL_RATE_48K;
  91        }
  92}
  93
  94/* dai component */
  95static const struct snd_kcontrol_new mtk_adda_dl_ch1_mix[] = {
  96        SOC_DAPM_SINGLE_AUTODISABLE("DL1_CH1", AFE_CONN3, I_DL1_CH1, 1, 0),
  97        SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH1", AFE_CONN3, I_DL2_CH1, 1, 0),
  98        SOC_DAPM_SINGLE_AUTODISABLE("DL3_CH1", AFE_CONN3, I_DL3_CH1, 1, 0),
  99        SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN3,
 100                                    I_ADDA_UL_CH2, 1, 0),
 101        SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN3,
 102                                    I_ADDA_UL_CH1, 1, 0),
 103        SOC_DAPM_SINGLE_AUTODISABLE("PCM_1_CAP_CH1", AFE_CONN3,
 104                                    I_PCM_1_CAP_CH1, 1, 0),
 105        SOC_DAPM_SINGLE_AUTODISABLE("PCM_2_CAP_CH1", AFE_CONN3,
 106                                    I_PCM_2_CAP_CH1, 1, 0),
 107};
 108
 109static const struct snd_kcontrol_new mtk_adda_dl_ch2_mix[] = {
 110        SOC_DAPM_SINGLE_AUTODISABLE("DL1_CH1", AFE_CONN4, I_DL1_CH1, 1, 0),
 111        SOC_DAPM_SINGLE_AUTODISABLE("DL1_CH2", AFE_CONN4, I_DL1_CH2, 1, 0),
 112        SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH1", AFE_CONN4, I_DL2_CH1, 1, 0),
 113        SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH2", AFE_CONN4, I_DL2_CH2, 1, 0),
 114        SOC_DAPM_SINGLE_AUTODISABLE("DL3_CH1", AFE_CONN4, I_DL3_CH1, 1, 0),
 115        SOC_DAPM_SINGLE_AUTODISABLE("DL3_CH2", AFE_CONN4, I_DL3_CH2, 1, 0),
 116        SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN4,
 117                                    I_ADDA_UL_CH2, 1, 0),
 118        SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN4,
 119                                    I_ADDA_UL_CH1, 1, 0),
 120        SOC_DAPM_SINGLE_AUTODISABLE("PCM_1_CAP_CH1", AFE_CONN4,
 121                                    I_PCM_1_CAP_CH1, 1, 0),
 122        SOC_DAPM_SINGLE_AUTODISABLE("PCM_2_CAP_CH1", AFE_CONN4,
 123                                    I_PCM_2_CAP_CH1, 1, 0),
 124        SOC_DAPM_SINGLE_AUTODISABLE("PCM_1_CAP_CH2", AFE_CONN4,
 125                                    I_PCM_1_CAP_CH2, 1, 0),
 126        SOC_DAPM_SINGLE_AUTODISABLE("PCM_2_CAP_CH2", AFE_CONN4,
 127                                    I_PCM_2_CAP_CH2, 1, 0),
 128};
 129
 130static int mtk_adda_ul_event(struct snd_soc_dapm_widget *w,
 131                             struct snd_kcontrol *kcontrol,
 132                             int event)
 133{
 134        struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
 135        struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt);
 136
 137        dev_dbg(afe->dev, "%s(), name %s, event 0x%x\n",
 138                __func__, w->name, event);
 139
 140        switch (event) {
 141        case SND_SOC_DAPM_POST_PMD:
 142                /* should delayed 1/fs(smallest is 8k) = 125us before afe off */
 143                usleep_range(125, 135);
 144                break;
 145        default:
 146                break;
 147        }
 148
 149        return 0;
 150}
 151
 152enum {
 153        SUPPLY_SEQ_AUD_TOP_PDN,
 154        SUPPLY_SEQ_ADDA_AFE_ON,
 155        SUPPLY_SEQ_ADDA_DL_ON,
 156        SUPPLY_SEQ_ADDA_UL_ON,
 157};
 158
 159static const struct snd_soc_dapm_widget mtk_dai_adda_widgets[] = {
 160        /* adda */
 161        SND_SOC_DAPM_MIXER("ADDA_DL_CH1", SND_SOC_NOPM, 0, 0,
 162                           mtk_adda_dl_ch1_mix,
 163                           ARRAY_SIZE(mtk_adda_dl_ch1_mix)),
 164        SND_SOC_DAPM_MIXER("ADDA_DL_CH2", SND_SOC_NOPM, 0, 0,
 165                           mtk_adda_dl_ch2_mix,
 166                           ARRAY_SIZE(mtk_adda_dl_ch2_mix)),
 167
 168        SND_SOC_DAPM_SUPPLY_S("ADDA Enable", SUPPLY_SEQ_ADDA_AFE_ON,
 169                              AFE_ADDA_UL_DL_CON0, ADDA_AFE_ON_SFT, 0,
 170                              NULL, 0),
 171
 172        SND_SOC_DAPM_SUPPLY_S("ADDA Playback Enable", SUPPLY_SEQ_ADDA_DL_ON,
 173                              AFE_ADDA_DL_SRC2_CON0,
 174                              DL_2_SRC_ON_TMP_CTL_PRE_SFT, 0,
 175                              NULL, 0),
 176
 177        SND_SOC_DAPM_SUPPLY_S("ADDA Capture Enable", SUPPLY_SEQ_ADDA_UL_ON,
 178                              AFE_ADDA_UL_SRC_CON0,
 179                              UL_SRC_ON_TMP_CTL_SFT, 0,
 180                              mtk_adda_ul_event,
 181                              SND_SOC_DAPM_POST_PMD),
 182
 183        SND_SOC_DAPM_SUPPLY_S("aud_dac_clk", SUPPLY_SEQ_AUD_TOP_PDN,
 184                              AUDIO_TOP_CON0, PDN_DAC_SFT, 1,
 185                              NULL, 0),
 186        SND_SOC_DAPM_SUPPLY_S("aud_dac_predis_clk", SUPPLY_SEQ_AUD_TOP_PDN,
 187                              AUDIO_TOP_CON0, PDN_DAC_PREDIS_SFT, 1,
 188                              NULL, 0),
 189
 190        SND_SOC_DAPM_SUPPLY_S("aud_adc_clk", SUPPLY_SEQ_AUD_TOP_PDN,
 191                              AUDIO_TOP_CON0, PDN_ADC_SFT, 1,
 192                              NULL, 0),
 193
 194        SND_SOC_DAPM_CLOCK_SUPPLY("mtkaif_26m_clk"),
 195};
 196
 197static const struct snd_soc_dapm_route mtk_dai_adda_routes[] = {
 198        /* playback */
 199        {"ADDA_DL_CH1", "DL1_CH1", "DL1"},
 200        {"ADDA_DL_CH2", "DL1_CH1", "DL1"},
 201        {"ADDA_DL_CH2", "DL1_CH2", "DL1"},
 202
 203        {"ADDA_DL_CH1", "DL2_CH1", "DL2"},
 204        {"ADDA_DL_CH2", "DL2_CH1", "DL2"},
 205        {"ADDA_DL_CH2", "DL2_CH2", "DL2"},
 206
 207        {"ADDA_DL_CH1", "DL3_CH1", "DL3"},
 208        {"ADDA_DL_CH2", "DL3_CH1", "DL3"},
 209        {"ADDA_DL_CH2", "DL3_CH2", "DL3"},
 210
 211        {"ADDA Playback", NULL, "ADDA_DL_CH1"},
 212        {"ADDA Playback", NULL, "ADDA_DL_CH2"},
 213
 214        /* adda enable */
 215        {"ADDA Playback", NULL, "ADDA Enable"},
 216        {"ADDA Playback", NULL, "ADDA Playback Enable"},
 217        {"ADDA Capture", NULL, "ADDA Enable"},
 218        {"ADDA Capture", NULL, "ADDA Capture Enable"},
 219
 220        /* clk */
 221        {"ADDA Playback", NULL, "mtkaif_26m_clk"},
 222        {"ADDA Playback", NULL, "aud_dac_clk"},
 223        {"ADDA Playback", NULL, "aud_dac_predis_clk"},
 224
 225        {"ADDA Capture", NULL, "mtkaif_26m_clk"},
 226        {"ADDA Capture", NULL, "aud_adc_clk"},
 227};
 228
 229/* dai ops */
 230static int mtk_dai_adda_hw_params(struct snd_pcm_substream *substream,
 231                                  struct snd_pcm_hw_params *params,
 232                                  struct snd_soc_dai *dai)
 233{
 234        struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
 235        unsigned int rate = params_rate(params);
 236
 237        dev_dbg(afe->dev, "%s(), id %d, stream %d, rate %d\n",
 238                __func__, dai->id, substream->stream, rate);
 239
 240        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 241                unsigned int dl_src2_con0 = 0;
 242                unsigned int dl_src2_con1 = 0;
 243
 244                /* clean predistortion */
 245                regmap_write(afe->regmap, AFE_ADDA_PREDIS_CON0, 0);
 246                regmap_write(afe->regmap, AFE_ADDA_PREDIS_CON1, 0);
 247
 248                /* set input sampling rate */
 249                dl_src2_con0 = adda_dl_rate_transform(afe, rate) << 28;
 250
 251                /* set output mode */
 252                switch (rate) {
 253                case 192000:
 254                        dl_src2_con0 |= (0x1 << 24); /* UP_SAMPLING_RATE_X2 */
 255                        dl_src2_con0 |= 1 << 14;
 256                        break;
 257                case 96000:
 258                        dl_src2_con0 |= (0x2 << 24); /* UP_SAMPLING_RATE_X4 */
 259                        dl_src2_con0 |= 1 << 14;
 260                        break;
 261                default:
 262                        dl_src2_con0 |= (0x3 << 24); /* UP_SAMPLING_RATE_X8 */
 263                        break;
 264                }
 265
 266                /* turn off mute function */
 267                dl_src2_con0 |= (0x03 << 11);
 268
 269                /* set voice input data if input sample rate is 8k or 16k */
 270                if (rate == 8000 || rate == 16000)
 271                        dl_src2_con0 |= 0x01 << 5;
 272
 273                if (rate < 96000) {
 274                        /* SA suggest apply -0.3db to audio/speech path */
 275                        dl_src2_con1 = 0xf74f0000;
 276                } else {
 277                        /* SA suggest apply -0.3db to audio/speech path
 278                         * with DL gain set to half,
 279                         * 0xFFFF = 0dB -> 0x8000 = 0dB when 96k, 192k
 280                         */
 281                        dl_src2_con1 = 0x7ba70000;
 282                }
 283
 284                /* turn on down-link gain */
 285                dl_src2_con0 = dl_src2_con0 | (0x01 << 1);
 286
 287                regmap_write(afe->regmap, AFE_ADDA_DL_SRC2_CON0, dl_src2_con0);
 288                regmap_write(afe->regmap, AFE_ADDA_DL_SRC2_CON1, dl_src2_con1);
 289        } else {
 290                unsigned int voice_mode = 0;
 291                unsigned int ul_src_con0 = 0;   /* default value */
 292
 293                /* Using Internal ADC */
 294                regmap_update_bits(afe->regmap,
 295                                   AFE_ADDA_TOP_CON0,
 296                                   0x1 << 0,
 297                                   0x0 << 0);
 298
 299                voice_mode = adda_ul_rate_transform(afe, rate);
 300
 301                ul_src_con0 |= (voice_mode << 17) & (0x7 << 17);
 302
 303                /* up8x txif sat on */
 304                regmap_write(afe->regmap, AFE_ADDA_NEWIF_CFG0, 0x03F87201);
 305
 306                if (rate >= 96000) {    /* hires */
 307                        /* use hires format [1 0 23] */
 308                        regmap_update_bits(afe->regmap,
 309                                           AFE_ADDA_NEWIF_CFG0,
 310                                           0x1 << 5,
 311                                           0x1 << 5);
 312
 313                        regmap_update_bits(afe->regmap,
 314                                           AFE_ADDA_NEWIF_CFG2,
 315                                           0xf << 28,
 316                                           voice_mode << 28);
 317                } else {        /* normal 8~48k */
 318                        /* use fixed 260k anc path */
 319                        regmap_update_bits(afe->regmap,
 320                                           AFE_ADDA_NEWIF_CFG2,
 321                                           0xf << 28,
 322                                           8 << 28);
 323
 324                        /* ul_use_cic_out */
 325                        ul_src_con0 |= 0x1 << 20;
 326                }
 327
 328                regmap_update_bits(afe->regmap,
 329                                   AFE_ADDA_NEWIF_CFG2,
 330                                   0xf << 28,
 331                                   8 << 28);
 332
 333                regmap_update_bits(afe->regmap,
 334                                   AFE_ADDA_UL_SRC_CON0,
 335                                   0xfffffffe,
 336                                   ul_src_con0);
 337        }
 338
 339        return 0;
 340}
 341
 342static const struct snd_soc_dai_ops mtk_dai_adda_ops = {
 343        .hw_params = mtk_dai_adda_hw_params,
 344};
 345
 346/* dai driver */
 347#define MTK_ADDA_PLAYBACK_RATES (SNDRV_PCM_RATE_8000_48000 |\
 348                                 SNDRV_PCM_RATE_96000 |\
 349                                 SNDRV_PCM_RATE_192000)
 350
 351#define MTK_ADDA_CAPTURE_RATES (SNDRV_PCM_RATE_8000 |\
 352                                SNDRV_PCM_RATE_16000 |\
 353                                SNDRV_PCM_RATE_32000 |\
 354                                SNDRV_PCM_RATE_48000 |\
 355                                SNDRV_PCM_RATE_96000 |\
 356                                SNDRV_PCM_RATE_192000)
 357
 358#define MTK_ADDA_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
 359                          SNDRV_PCM_FMTBIT_S24_LE |\
 360                          SNDRV_PCM_FMTBIT_S32_LE)
 361
 362static struct snd_soc_dai_driver mtk_dai_adda_driver[] = {
 363        {
 364                .name = "ADDA",
 365                .id = MT6797_DAI_ADDA,
 366                .playback = {
 367                        .stream_name = "ADDA Playback",
 368                        .channels_min = 1,
 369                        .channels_max = 2,
 370                        .rates = MTK_ADDA_PLAYBACK_RATES,
 371                        .formats = MTK_ADDA_FORMATS,
 372                },
 373                .capture = {
 374                        .stream_name = "ADDA Capture",
 375                        .channels_min = 1,
 376                        .channels_max = 2,
 377                        .rates = MTK_ADDA_CAPTURE_RATES,
 378                        .formats = MTK_ADDA_FORMATS,
 379                },
 380                .ops = &mtk_dai_adda_ops,
 381        },
 382};
 383
 384int mt6797_dai_adda_register(struct mtk_base_afe *afe)
 385{
 386        struct mtk_base_afe_dai *dai;
 387
 388        dai = devm_kzalloc(afe->dev, sizeof(*dai), GFP_KERNEL);
 389        if (!dai)
 390                return -ENOMEM;
 391
 392        list_add(&dai->list, &afe->sub_dais);
 393
 394        dai->dai_drivers = mtk_dai_adda_driver;
 395        dai->num_dai_drivers = ARRAY_SIZE(mtk_dai_adda_driver);
 396
 397        dai->dapm_widgets = mtk_dai_adda_widgets;
 398        dai->num_dapm_widgets = ARRAY_SIZE(mtk_dai_adda_widgets);
 399        dai->dapm_routes = mtk_dai_adda_routes;
 400        dai->num_dapm_routes = ARRAY_SIZE(mtk_dai_adda_routes);
 401        return 0;
 402}
 403