sound/soc/codecs/inno_rk3036.c

   1 /*
   2  * Driver of Inno codec for rk3036 by Rockchip Inc.
   3  *
   4  * Author: Rockchip Inc.
   5  * Author: Zheng ShunQian<zhengsq@rock-chips.com>
   6  */
   7
   8 #include <sound/soc.h>
   9 #include <sound/tlv.h>
  10 #include <sound/soc-dapm.h>
  11 #include <sound/soc-dai.h>
  12 #include <sound/pcm.h>
  13 #include <sound/pcm_params.h>
  14
  15 #include <linux/platform_device.h>
  16 #include <linux/of.h>
  17 #include <linux/clk.h>
  18 #include <linux/regmap.h>
  19 #include <linux/device.h>
  20 #include <linux/mfd/syscon.h>
  21 #include <linux/module.h>
  22 #include <linux/io.h>
  23
  24 #include "inno_rk3036.h"
  25
  26 struct rk3036_codec_priv {
  27         void __iomem *base;
  28         struct clk *pclk;
  29         struct regmap *regmap;
  30         struct device *dev;
  31 };
  32
  33 static const DECLARE_TLV_DB_MINMAX(rk3036_codec_hp_tlv, -39, 0);
  34
  35 static int rk3036_codec_antipop_info(struct snd_kcontrol *kcontrol,
  36                                      struct snd_ctl_elem_info *uinfo)
  37 {
  38         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
  39         uinfo->count = 2;
  40         uinfo->value.integer.min = 0;
  41         uinfo->value.integer.max = 1;
  42
  43         return 0;
  44 }
  45
  46 static int rk3036_codec_antipop_get(struct snd_kcontrol *kcontrol,
  47                                     struct snd_ctl_elem_value *ucontrol)
  48 {
  49         struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
  50         int val, ret, regval;
  51
  52         ret = snd_soc_component_read(component, INNO_R09, &regval);
  53         if (ret)
  54                 return ret;
  55         val = ((regval >> INNO_R09_HPL_ANITPOP_SHIFT) &
  56                INNO_R09_HP_ANTIPOP_MSK) == INNO_R09_HP_ANTIPOP_ON;
  57         ucontrol->value.integer.value[0] = val;
  58
  59         val = ((regval >> INNO_R09_HPR_ANITPOP_SHIFT) &
  60                INNO_R09_HP_ANTIPOP_MSK) == INNO_R09_HP_ANTIPOP_ON;
  61         ucontrol->value.integer.value[1] = val;
  62
  63         return 0;
  64 }
  65
  66 static int rk3036_codec_antipop_put(struct snd_kcontrol *kcontrol,
  67                                     struct snd_ctl_elem_value *ucontrol)
  68 {
  69         struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
  70         int val, ret, regmsk;
  71
  72         val = (ucontrol->value.integer.value[0] ?
  73                INNO_R09_HP_ANTIPOP_ON : INNO_R09_HP_ANTIPOP_OFF) <<
  74               INNO_R09_HPL_ANITPOP_SHIFT;
  75         val |= (ucontrol->value.integer.value[1] ?
  76                 INNO_R09_HP_ANTIPOP_ON : INNO_R09_HP_ANTIPOP_OFF) <<
  77                INNO_R09_HPR_ANITPOP_SHIFT;
  78
  79         regmsk = INNO_R09_HP_ANTIPOP_MSK << INNO_R09_HPL_ANITPOP_SHIFT |
  80                  INNO_R09_HP_ANTIPOP_MSK << INNO_R09_HPR_ANITPOP_SHIFT;
  81
  82         ret = snd_soc_component_update_bits(component, INNO_R09,
  83                                             regmsk, val);
  84         if (ret < 0)
  85                 return ret;
  86
  87         return 0;
  88 }
  89
  90 #define SOC_RK3036_CODEC_ANTIPOP_DECL(xname) \
  91 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  92         .info = rk3036_codec_antipop_info, .get = rk3036_codec_antipop_get, \
  93         .put = rk3036_codec_antipop_put, }
  94
  95 static const struct snd_kcontrol_new rk3036_codec_dapm_controls[] = {
  96         SOC_DOUBLE_R_RANGE_TLV("Headphone Volume", INNO_R07, INNO_R08,
  97                 INNO_HP_GAIN_SHIFT, INNO_HP_GAIN_N39DB,
  98                 INNO_HP_GAIN_0DB, 0, rk3036_codec_hp_tlv),
  99         SOC_DOUBLE("Zero Cross Switch", INNO_R06, INNO_R06_VOUTL_CZ_SHIFT,
 100                 INNO_R06_VOUTR_CZ_SHIFT, 1, 0),
 101         SOC_DOUBLE("Headphone Switch", INNO_R09, INNO_R09_HPL_MUTE_SHIFT,
 102                 INNO_R09_HPR_MUTE_SHIFT, 1, 0),
 103         SOC_RK3036_CODEC_ANTIPOP_DECL("Anti-pop Switch"),
 104 };
 105
 106 static const struct snd_kcontrol_new rk3036_codec_hpl_mixer_controls[] = {
 107         SOC_DAPM_SINGLE("DAC Left Out Switch", INNO_R09,
 108                         INNO_R09_DACL_SWITCH_SHIFT, 1, 0),
 109 };
 110
 111 static const struct snd_kcontrol_new rk3036_codec_hpr_mixer_controls[] = {
 112         SOC_DAPM_SINGLE("DAC Right Out Switch", INNO_R09,
 113                         INNO_R09_DACR_SWITCH_SHIFT, 1, 0),
 114 };
 115
 116 static const struct snd_kcontrol_new rk3036_codec_hpl_switch_controls[] = {
 117         SOC_DAPM_SINGLE("HP Left Out Switch", INNO_R05,
 118                         INNO_R05_HPL_WORK_SHIFT, 1, 0),
 119 };
 120
 121 static const struct snd_kcontrol_new rk3036_codec_hpr_switch_controls[] = {
 122         SOC_DAPM_SINGLE("HP Right Out Switch", INNO_R05,
 123                         INNO_R05_HPR_WORK_SHIFT, 1, 0),
 124 };
 125
 126 static const struct snd_soc_dapm_widget rk3036_codec_dapm_widgets[] = {
 127         SND_SOC_DAPM_SUPPLY_S("DAC PWR", 1, INNO_R06,
 128                               INNO_R06_DAC_EN_SHIFT, 0, NULL, 0),
 129         SND_SOC_DAPM_SUPPLY_S("DACL VREF", 2, INNO_R04,
 130                               INNO_R04_DACL_VREF_SHIFT, 0, NULL, 0),
 131         SND_SOC_DAPM_SUPPLY_S("DACR VREF", 2, INNO_R04,
 132                               INNO_R04_DACR_VREF_SHIFT, 0, NULL, 0),
 133         SND_SOC_DAPM_SUPPLY_S("DACL HiLo VREF", 3, INNO_R06,
 134                               INNO_R06_DACL_HILO_VREF_SHIFT, 0, NULL, 0),
 135         SND_SOC_DAPM_SUPPLY_S("DACR HiLo VREF", 3, INNO_R06,
 136                               INNO_R06_DACR_HILO_VREF_SHIFT, 0, NULL, 0),
 137         SND_SOC_DAPM_SUPPLY_S("DACR CLK", 3, INNO_R04,
 138                               INNO_R04_DACR_CLK_SHIFT, 0, NULL, 0),
 139         SND_SOC_DAPM_SUPPLY_S("DACL CLK", 3, INNO_R04,
 140                               INNO_R04_DACL_CLK_SHIFT, 0, NULL, 0),
 141
 142         SND_SOC_DAPM_DAC("DACL", "Left Playback", INNO_R04,
 143                          INNO_R04_DACL_SW_SHIFT, 0),
 144         SND_SOC_DAPM_DAC("DACR", "Right Playback", INNO_R04,
 145                          INNO_R04_DACR_SW_SHIFT, 0),
 146
 147         SND_SOC_DAPM_MIXER("Left Headphone Mixer", SND_SOC_NOPM, 0, 0,
 148                 rk3036_codec_hpl_mixer_controls,
 149                 ARRAY_SIZE(rk3036_codec_hpl_mixer_controls)),
 150         SND_SOC_DAPM_MIXER("Right Headphone Mixer", SND_SOC_NOPM, 0, 0,
 151                 rk3036_codec_hpr_mixer_controls,
 152                 ARRAY_SIZE(rk3036_codec_hpr_mixer_controls)),
 153
 154         SND_SOC_DAPM_PGA("HP Left Out", INNO_R05,
 155                          INNO_R05_HPL_EN_SHIFT, 0, NULL, 0),
 156         SND_SOC_DAPM_PGA("HP Right Out", INNO_R05,
 157                          INNO_R05_HPR_EN_SHIFT, 0, NULL, 0),
 158
 159         SND_SOC_DAPM_MIXER("HP Left Switch",  SND_SOC_NOPM, 0, 0,
 160                            rk3036_codec_hpl_switch_controls,
 161                            ARRAY_SIZE(rk3036_codec_hpl_switch_controls)),
 162         SND_SOC_DAPM_MIXER("HP Right Switch",  SND_SOC_NOPM, 0, 0,
 163                            rk3036_codec_hpr_switch_controls,
 164                            ARRAY_SIZE(rk3036_codec_hpr_switch_controls)),
 165
 166         SND_SOC_DAPM_OUTPUT("HPL"),
 167         SND_SOC_DAPM_OUTPUT("HPR"),
 168 };
 169
 170 static const struct snd_soc_dapm_route rk3036_codec_dapm_routes[] = {
 171         {"DACL VREF", NULL, "DAC PWR"},
 172         {"DACR VREF", NULL, "DAC PWR"},
 173         {"DACL HiLo VREF", NULL, "DAC PWR"},
 174         {"DACR HiLo VREF", NULL, "DAC PWR"},
 175         {"DACL CLK", NULL, "DAC PWR"},
 176         {"DACR CLK", NULL, "DAC PWR"},
 177
 178         {"DACL", NULL, "DACL VREF"},
 179         {"DACL", NULL, "DACL HiLo VREF"},
 180         {"DACL", NULL, "DACL CLK"},
 181         {"DACR", NULL, "DACR VREF"},
 182         {"DACR", NULL, "DACR HiLo VREF"},
 183         {"DACR", NULL, "DACR CLK"},
 184
 185         {"Left Headphone Mixer", "DAC Left Out Switch", "DACL"},
 186         {"Right Headphone Mixer", "DAC Right Out Switch", "DACR"},
 187         {"HP Left Out", NULL, "Left Headphone Mixer"},
 188         {"HP Right Out", NULL, "Right Headphone Mixer"},
 189
 190         {"HP Left Switch", "HP Left Out Switch", "HP Left Out"},
 191         {"HP Right Switch", "HP Right Out Switch", "HP Right Out"},
 192
 193         {"HPL", NULL, "HP Left Switch"},
 194         {"HPR", NULL, "HP Right Switch"},
 195 };
 196
 197 static int rk3036_codec_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 198 {
 199         struct snd_soc_codec *codec = dai->codec;
 200         unsigned int reg01_val = 0,  reg02_val = 0, reg03_val = 0;
 201
 202         dev_dbg(codec->dev, "rk3036_codec dai set fmt : %08x\n", fmt);
 203
 204         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 205         case SND_SOC_DAIFMT_CBS_CFS:
 206                 reg01_val |= INNO_R01_PINDIR_IN_SLAVE |
 207                              INNO_R01_I2SMODE_SLAVE;
 208                 break;
 209         case SND_SOC_DAIFMT_CBM_CFM:
 210                 reg01_val |= INNO_R01_PINDIR_OUT_MASTER |
 211                              INNO_R01_I2SMODE_MASTER;
 212                 break;
 213         default:
 214                 dev_err(codec->dev, "invalid fmt\n");
 215                 return -EINVAL;
 216         }
 217
 218         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 219         case SND_SOC_DAIFMT_DSP_A:
 220                 reg02_val |= INNO_R02_DACM_PCM;
 221                 break;
 222         case SND_SOC_DAIFMT_I2S:
 223                 reg02_val |= INNO_R02_DACM_I2S;
 224                 break;
 225         case SND_SOC_DAIFMT_RIGHT_J:
 226                 reg02_val |= INNO_R02_DACM_RJM;
 227                 break;
 228         case SND_SOC_DAIFMT_LEFT_J:
 229                 reg02_val |= INNO_R02_DACM_LJM;
 230                 break;
 231         default:
 232                 dev_err(codec->dev, "set dai format failed\n");
 233                 return -EINVAL;
 234         }
 235
 236         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 237         case SND_SOC_DAIFMT_NB_NF:
 238                 reg02_val |= INNO_R02_LRCP_NORMAL;
 239                 reg03_val |= INNO_R03_BCP_NORMAL;
 240                 break;
 241         case SND_SOC_DAIFMT_IB_IF:
 242                 reg02_val |= INNO_R02_LRCP_REVERSAL;
 243                 reg03_val |= INNO_R03_BCP_REVERSAL;
 244                 break;
 245         case SND_SOC_DAIFMT_IB_NF:
 246                 reg02_val |= INNO_R02_LRCP_REVERSAL;
 247                 reg03_val |= INNO_R03_BCP_NORMAL;
 248                 break;
 249         case SND_SOC_DAIFMT_NB_IF:
 250                 reg02_val |= INNO_R02_LRCP_NORMAL;
 251                 reg03_val |= INNO_R03_BCP_REVERSAL;
 252                 break;
 253         default:
 254                 dev_err(codec->dev, "set dai format failed\n");
 255                 return -EINVAL;
 256         }
 257
 258         snd_soc_update_bits(codec, INNO_R01, INNO_R01_I2SMODE_MSK |
 259                             INNO_R01_PINDIR_MSK, reg01_val);
 260         snd_soc_update_bits(codec, INNO_R02, INNO_R02_LRCP_MSK |
 261                             INNO_R02_DACM_MSK, reg02_val);
 262         snd_soc_update_bits(codec, INNO_R03, INNO_R03_BCP_MSK, reg03_val);
 263
 264         return 0;
 265 }
 266
 267 static int rk3036_codec_dai_hw_params(struct snd_pcm_substream *substream,
 268                                       struct snd_pcm_hw_params *hw_params,
 269                                       struct snd_soc_dai *dai)
 270 {
 271         struct snd_soc_codec *codec = dai->codec;
 272         unsigned int reg02_val = 0, reg03_val = 0;
 273
 274         switch (params_format(hw_params)) {
 275         case SNDRV_PCM_FORMAT_S16_LE:
 276                 reg02_val |= INNO_R02_VWL_16BIT;
 277                 break;
 278         case SNDRV_PCM_FORMAT_S20_3LE:
 279                 reg02_val |= INNO_R02_VWL_20BIT;
 280                 break;
 281         case SNDRV_PCM_FORMAT_S24_LE:
 282                 reg02_val |= INNO_R02_VWL_24BIT;
 283                 break;
 284         case SNDRV_PCM_FORMAT_S32_LE:
 285                 reg02_val |= INNO_R02_VWL_32BIT;
 286                 break;
 287         default:
 288                 return -EINVAL;
 289         }
 290
 291         reg02_val |= INNO_R02_LRCP_NORMAL;
 292         reg03_val |= INNO_R03_FWL_32BIT | INNO_R03_DACR_WORK;
 293
 294         snd_soc_update_bits(codec, INNO_R02, INNO_R02_LRCP_MSK |
 295                             INNO_R02_VWL_MSK, reg02_val);
 296         snd_soc_update_bits(codec, INNO_R03, INNO_R03_DACR_MSK |
 297                             INNO_R03_FWL_MSK, reg03_val);
 298         return 0;
 299 }
 300
 301 #define RK3036_CODEC_RATES (SNDRV_PCM_RATE_8000  | \
 302                             SNDRV_PCM_RATE_16000 | \
 303                             SNDRV_PCM_RATE_32000 | \
 304                             SNDRV_PCM_RATE_44100 | \
 305                             SNDRV_PCM_RATE_48000 | \
 306                             SNDRV_PCM_RATE_96000)
 307
 308 #define RK3036_CODEC_FMTS (SNDRV_PCM_FMTBIT_S16_LE  | \
 309                            SNDRV_PCM_FMTBIT_S20_3LE | \
 310                            SNDRV_PCM_FMTBIT_S24_LE  | \
 311                            SNDRV_PCM_FMTBIT_S32_LE)
 312
 313 static struct snd_soc_dai_ops rk3036_codec_dai_ops = {
 314         .set_fmt        = rk3036_codec_dai_set_fmt,
 315         .hw_params      = rk3036_codec_dai_hw_params,
 316 };
 317
 318 static struct snd_soc_dai_driver rk3036_codec_dai_driver[] = {
 319         {
 320                 .name = "rk3036-codec-dai",
 321                 .playback = {
 322                         .stream_name = "Playback",
 323                         .channels_min = 1,
 324                         .channels_max = 2,
 325                         .rates = RK3036_CODEC_RATES,
 326                         .formats = RK3036_CODEC_FMTS,
 327                 },
 328                 .ops = &rk3036_codec_dai_ops,
 329                 .symmetric_rates = 1,
 330         },
 331 };
 332
 333 static void rk3036_codec_reset(struct snd_soc_codec *codec)
 334 {
 335         snd_soc_write(codec, INNO_R00,
 336                       INNO_R00_CSR_RESET | INNO_R00_CDCR_RESET);
 337         snd_soc_write(codec, INNO_R00,
 338                       INNO_R00_CSR_WORK | INNO_R00_CDCR_WORK);
 339 }
 340
 341 static int rk3036_codec_probe(struct snd_soc_codec *codec)
 342 {
 343         rk3036_codec_reset(codec);
 344         return 0;
 345 }
 346
 347 static int rk3036_codec_remove(struct snd_soc_codec *codec)
 348 {
 349         rk3036_codec_reset(codec);
 350         return 0;
 351 }
 352
 353 static int rk3036_codec_set_bias_level(struct snd_soc_codec *codec,
 354                                        enum snd_soc_bias_level level)
 355 {
 356         switch (level) {
 357         case SND_SOC_BIAS_STANDBY:
 358                 /* set a big current for capacitor charging. */
 359                 snd_soc_write(codec, INNO_R10, INNO_R10_MAX_CUR);
 360                 /* start precharge */
 361                 snd_soc_write(codec, INNO_R06, INNO_R06_DAC_PRECHARGE);
 362
 363                 break;
 364
 365         case SND_SOC_BIAS_OFF:
 366                 /* set a big current for capacitor discharging. */
 367                 snd_soc_write(codec, INNO_R10, INNO_R10_MAX_CUR);
 368                 /* start discharge. */
 369                 snd_soc_write(codec, INNO_R06, INNO_R06_DAC_DISCHARGE);
 370
 371                 break;
 372         default:
 373                 break;
 374         }
 375
 376         return 0;
 377 }
 378
 379 static struct snd_soc_codec_driver rk3036_codec_driver = {
 380         .probe                  = rk3036_codec_probe,
 381         .remove                 = rk3036_codec_remove,
 382         .set_bias_level         = rk3036_codec_set_bias_level,
 383         .component_driver = {
 384                 .controls               = rk3036_codec_dapm_controls,
 385                 .num_controls           = ARRAY_SIZE(rk3036_codec_dapm_controls),
 386                 .dapm_routes            = rk3036_codec_dapm_routes,
 387                 .num_dapm_routes        = ARRAY_SIZE(rk3036_codec_dapm_routes),
 388                 .dapm_widgets           = rk3036_codec_dapm_widgets,
 389                 .num_dapm_widgets       = ARRAY_SIZE(rk3036_codec_dapm_widgets),
 390         },
 391 };
 392
 393 static const struct regmap_config rk3036_codec_regmap_config = {
 394         .reg_bits = 32,
 395         .reg_stride = 4,
 396         .val_bits = 32,
 397 };
 398
 399 #define GRF_SOC_CON0            0x00140
 400 #define GRF_ACODEC_SEL          (BIT(10) | BIT(16 + 10))
 401
 402 static int rk3036_codec_platform_probe(struct platform_device *pdev)
 403 {
 404         struct rk3036_codec_priv *priv;
 405         struct device_node *of_node = pdev->dev.of_node;
 406         struct resource *res;
 407         void __iomem *base;
 408         struct regmap *grf;
 409         int ret;
 410
 411         priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
 412         if (!priv)
 413                 return -ENOMEM;
 414
 415         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 416         base = devm_ioremap_resource(&pdev->dev, res);
 417         if (IS_ERR(base))
 418                 return PTR_ERR(base);
 419
 420         priv->base = base;
 421         priv->regmap = devm_regmap_init_mmio(&pdev->dev, priv->base,
 422                                              &rk3036_codec_regmap_config);
 423         if (IS_ERR(priv->regmap)) {
 424                 dev_err(&pdev->dev, "init regmap failed\n");
 425                 return PTR_ERR(priv->regmap);
 426         }
 427
 428         grf = syscon_regmap_lookup_by_phandle(of_node, "rockchip,grf");
 429         if (IS_ERR(grf)) {
 430                 dev_err(&pdev->dev, "needs 'rockchip,grf' property\n");
 431                 return PTR_ERR(grf);
 432         }
 433         ret = regmap_write(grf, GRF_SOC_CON0, GRF_ACODEC_SEL);
 434         if (ret) {
 435                 dev_err(&pdev->dev, "Could not write to GRF: %d\n", ret);
 436                 return ret;
 437         }
 438
 439         priv->pclk = devm_clk_get(&pdev->dev, "acodec_pclk");
 440         if (IS_ERR(priv->pclk))
 441                 return PTR_ERR(priv->pclk);
 442
 443         ret = clk_prepare_enable(priv->pclk);
 444         if (ret < 0) {
 445                 dev_err(&pdev->dev, "failed to enable clk\n");
 446                 return ret;
 447         }
 448
 449         priv->dev = &pdev->dev;
 450         dev_set_drvdata(&pdev->dev, priv);
 451
 452         ret = snd_soc_register_codec(&pdev->dev, &rk3036_codec_driver,
 453                                      rk3036_codec_dai_driver,
 454                                      ARRAY_SIZE(rk3036_codec_dai_driver));
 455         if (ret) {
 456                 clk_disable_unprepare(priv->pclk);
 457                 dev_set_drvdata(&pdev->dev, NULL);
 458         }
 459
 460         return ret;
 461 }
 462
 463 static int rk3036_codec_platform_remove(struct platform_device *pdev)
 464 {
 465         struct rk3036_codec_priv *priv = dev_get_drvdata(&pdev->dev);
 466
 467         snd_soc_unregister_codec(&pdev->dev);
 468         clk_disable_unprepare(priv->pclk);
 469
 470         return 0;
 471 }
 472
 473 static const struct of_device_id rk3036_codec_of_match[] = {
 474         { .compatible = "rockchip,rk3036-codec", },
 475         {}
 476 };
 477 MODULE_DEVICE_TABLE(of, rk3036_codec_of_match);
 478
 479 static struct platform_driver rk3036_codec_platform_driver = {
 480         .driver = {
 481                 .name = "rk3036-codec-platform",
 482                 .of_match_table = of_match_ptr(rk3036_codec_of_match),
 483         },
 484         .probe = rk3036_codec_platform_probe,
 485         .remove = rk3036_codec_platform_remove,
 486 };
 487
 488 module_platform_driver(rk3036_codec_platform_driver);
 489
 490 MODULE_AUTHOR("Rockchip Inc.");
 491 MODULE_DESCRIPTION("Rockchip rk3036 codec driver");
 492 MODULE_LICENSE("GPL");