sound/soc/codecs/stac9766.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * stac9766.c  --  ALSA SoC STAC9766 codec support
   4  *
   5  * Copyright 2009 Jon Smirl, Digispeaker
   6  * Author: Jon Smirl <jonsmirl@gmail.com>
   7  *
   8  *  Features:-
   9  *
  10  *   o Support for AC97 Codec, S/PDIF
  11  */
  12
  13 #include <linux/init.h>
  14 #include <linux/slab.h>
  15 #include <linux/module.h>
  16 #include <linux/device.h>
  17 #include <linux/regmap.h>
  18 #include <sound/core.h>
  19 #include <sound/pcm.h>
  20 #include <sound/ac97_codec.h>
  21 #include <sound/initval.h>
  22 #include <sound/pcm_params.h>
  23 #include <sound/soc.h>
  24 #include <sound/tlv.h>
  25
  26 #define STAC9766_VENDOR_ID 0x83847666
  27 #define STAC9766_VENDOR_ID_MASK 0xffffffff
  28
  29 #define AC97_STAC_DA_CONTROL 0x6A
  30 #define AC97_STAC_ANALOG_SPECIAL 0x6E
  31 #define AC97_STAC_STEREO_MIC 0x78
  32
  33 static const struct reg_default stac9766_reg_defaults[] = {
  34         { 0x02, 0x8000 },
  35         { 0x04, 0x8000 },
  36         { 0x06, 0x8000 },
  37         { 0x0a, 0x0000 },
  38         { 0x0c, 0x8008 },
  39         { 0x0e, 0x8008 },
  40         { 0x10, 0x8808 },
  41         { 0x12, 0x8808 },
  42         { 0x14, 0x8808 },
  43         { 0x16, 0x8808 },
  44         { 0x18, 0x8808 },
  45         { 0x1a, 0x0000 },
  46         { 0x1c, 0x8000 },
  47         { 0x20, 0x0000 },
  48         { 0x22, 0x0000 },
  49         { 0x28, 0x0a05 },
  50         { 0x2c, 0xbb80 },
  51         { 0x32, 0xbb80 },
  52         { 0x3a, 0x2000 },
  53         { 0x3e, 0x0100 },
  54         { 0x4c, 0x0300 },
  55         { 0x4e, 0xffff },
  56         { 0x50, 0x0000 },
  57         { 0x52, 0x0000 },
  58         { 0x54, 0x0000 },
  59         { 0x6a, 0x0000 },
  60         { 0x6e, 0x1000 },
  61         { 0x72, 0x0000 },
  62         { 0x78, 0x0000 },
  63 };
  64
  65 static const struct regmap_config stac9766_regmap_config = {
  66         .reg_bits = 16,
  67         .reg_stride = 2,
  68         .val_bits = 16,
  69         .max_register = 0x78,
  70         .cache_type = REGCACHE_RBTREE,
  71
  72         .volatile_reg = regmap_ac97_default_volatile,
  73
  74         .reg_defaults = stac9766_reg_defaults,
  75         .num_reg_defaults = ARRAY_SIZE(stac9766_reg_defaults),
  76 };
  77
  78 static const char *stac9766_record_mux[] = {"Mic", "CD", "Video", "AUX",
  79                         "Line", "Stereo Mix", "Mono Mix", "Phone"};
  80 static const char *stac9766_mono_mux[] = {"Mix", "Mic"};
  81 static const char *stac9766_mic_mux[] = {"Mic1", "Mic2"};
  82 static const char *stac9766_SPDIF_mux[] = {"PCM", "ADC Record"};
  83 static const char *stac9766_popbypass_mux[] = {"Normal", "Bypass Mixer"};
  84 static const char *stac9766_record_all_mux[] = {"All analog",
  85         "Analog plus DAC"};
  86 static const char *stac9766_boost1[] = {"0dB", "10dB"};
  87 static const char *stac9766_boost2[] = {"0dB", "20dB"};
  88 static const char *stac9766_stereo_mic[] = {"Off", "On"};
  89
  90 static SOC_ENUM_DOUBLE_DECL(stac9766_record_enum,
  91                             AC97_REC_SEL, 8, 0, stac9766_record_mux);
  92 static SOC_ENUM_SINGLE_DECL(stac9766_mono_enum,
  93                             AC97_GENERAL_PURPOSE, 9, stac9766_mono_mux);
  94 static SOC_ENUM_SINGLE_DECL(stac9766_mic_enum,
  95                             AC97_GENERAL_PURPOSE, 8, stac9766_mic_mux);
  96 static SOC_ENUM_SINGLE_DECL(stac9766_SPDIF_enum,
  97                             AC97_STAC_DA_CONTROL, 1, stac9766_SPDIF_mux);
  98 static SOC_ENUM_SINGLE_DECL(stac9766_popbypass_enum,
  99                             AC97_GENERAL_PURPOSE, 15, stac9766_popbypass_mux);
 100 static SOC_ENUM_SINGLE_DECL(stac9766_record_all_enum,
 101                             AC97_STAC_ANALOG_SPECIAL, 12,
 102                             stac9766_record_all_mux);
 103 static SOC_ENUM_SINGLE_DECL(stac9766_boost1_enum,
 104                             AC97_MIC, 6, stac9766_boost1); /* 0/10dB */
 105 static SOC_ENUM_SINGLE_DECL(stac9766_boost2_enum,
 106                             AC97_STAC_ANALOG_SPECIAL, 2, stac9766_boost2); /* 0/20dB */
 107 static SOC_ENUM_SINGLE_DECL(stac9766_stereo_mic_enum,
 108                             AC97_STAC_STEREO_MIC, 2, stac9766_stereo_mic);
 109
 110 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(master_tlv, -4650, 150, 0);
 111 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(record_tlv,     0, 150, 0);
 112 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(beep_tlv,   -4500, 300, 0);
 113 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(mix_tlv,    -3450, 150, 0);
 114
 115 static const struct snd_kcontrol_new stac9766_snd_ac97_controls[] = {
 116         SOC_DOUBLE_TLV("Speaker Volume", AC97_MASTER, 8, 0, 31, 1, master_tlv),
 117         SOC_SINGLE("Speaker Switch", AC97_MASTER, 15, 1, 1),
 118         SOC_DOUBLE_TLV("Headphone Volume", AC97_HEADPHONE, 8, 0, 31, 1,
 119                        master_tlv),
 120         SOC_SINGLE("Headphone Switch", AC97_HEADPHONE, 15, 1, 1),
 121         SOC_SINGLE_TLV("Mono Out Volume", AC97_MASTER_MONO, 0, 31, 1,
 122                        master_tlv),
 123         SOC_SINGLE("Mono Out Switch", AC97_MASTER_MONO, 15, 1, 1),
 124
 125         SOC_DOUBLE_TLV("Record Volume", AC97_REC_GAIN, 8, 0, 15, 0, record_tlv),
 126         SOC_SINGLE("Record Switch", AC97_REC_GAIN, 15, 1, 1),
 127
 128
 129         SOC_SINGLE_TLV("Beep Volume", AC97_PC_BEEP, 1, 15, 1, beep_tlv),
 130         SOC_SINGLE("Beep Switch", AC97_PC_BEEP, 15, 1, 1),
 131         SOC_SINGLE("Beep Frequency", AC97_PC_BEEP, 5, 127, 1),
 132         SOC_SINGLE_TLV("Phone Volume", AC97_PHONE, 0, 31, 1, mix_tlv),
 133         SOC_SINGLE("Phone Switch", AC97_PHONE, 15, 1, 1),
 134
 135         SOC_ENUM("Mic Boost1", stac9766_boost1_enum),
 136         SOC_ENUM("Mic Boost2", stac9766_boost2_enum),
 137         SOC_SINGLE_TLV("Mic Volume", AC97_MIC, 0, 31, 1, mix_tlv),
 138         SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),
 139         SOC_ENUM("Stereo Mic", stac9766_stereo_mic_enum),
 140
 141         SOC_DOUBLE_TLV("Line Volume", AC97_LINE, 8, 0, 31, 1, mix_tlv),
 142         SOC_SINGLE("Line Switch", AC97_LINE, 15, 1, 1),
 143         SOC_DOUBLE_TLV("CD Volume", AC97_CD, 8, 0, 31, 1, mix_tlv),
 144         SOC_SINGLE("CD Switch", AC97_CD, 15, 1, 1),
 145         SOC_DOUBLE_TLV("AUX Volume", AC97_AUX, 8, 0, 31, 1, mix_tlv),
 146         SOC_SINGLE("AUX Switch", AC97_AUX, 15, 1, 1),
 147         SOC_DOUBLE_TLV("Video Volume", AC97_VIDEO, 8, 0, 31, 1, mix_tlv),
 148         SOC_SINGLE("Video Switch", AC97_VIDEO, 15, 1, 1),
 149
 150         SOC_DOUBLE_TLV("DAC Volume", AC97_PCM, 8, 0, 31, 1, mix_tlv),
 151         SOC_SINGLE("DAC Switch", AC97_PCM, 15, 1, 1),
 152         SOC_SINGLE("Loopback Test Switch", AC97_GENERAL_PURPOSE, 7, 1, 0),
 153         SOC_SINGLE("3D Volume", AC97_3D_CONTROL, 3, 2, 1),
 154         SOC_SINGLE("3D Switch", AC97_GENERAL_PURPOSE, 13, 1, 0),
 155
 156         SOC_ENUM("SPDIF Mux", stac9766_SPDIF_enum),
 157         SOC_ENUM("Mic1/2 Mux", stac9766_mic_enum),
 158         SOC_ENUM("Record All Mux", stac9766_record_all_enum),
 159         SOC_ENUM("Record Mux", stac9766_record_enum),
 160         SOC_ENUM("Mono Mux", stac9766_mono_enum),
 161         SOC_ENUM("Pop Bypass Mux", stac9766_popbypass_enum),
 162 };
 163
 164 static int ac97_analog_prepare(struct snd_pcm_substream *substream,
 165                                struct snd_soc_dai *dai)
 166 {
 167         struct snd_soc_component *component = dai->component;
 168         struct snd_pcm_runtime *runtime = substream->runtime;
 169         unsigned short reg;
 170
 171         /* enable variable rate audio, disable SPDIF output */
 172         snd_soc_component_update_bits(component, AC97_EXTENDED_STATUS, 0x5, 0x1);
 173
 174         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 175                 reg = AC97_PCM_FRONT_DAC_RATE;
 176         else
 177                 reg = AC97_PCM_LR_ADC_RATE;
 178
 179         return snd_soc_component_write(component, reg, runtime->rate);
 180 }
 181
 182 static int ac97_digital_prepare(struct snd_pcm_substream *substream,
 183                                 struct snd_soc_dai *dai)
 184 {
 185         struct snd_soc_component *component = dai->component;
 186         struct snd_pcm_runtime *runtime = substream->runtime;
 187         unsigned short reg;
 188
 189         snd_soc_component_write(component, AC97_SPDIF, 0x2002);
 190
 191         /* Enable VRA and SPDIF out */
 192         snd_soc_component_update_bits(component, AC97_EXTENDED_STATUS, 0x5, 0x5);
 193
 194         reg = AC97_PCM_FRONT_DAC_RATE;
 195
 196         return snd_soc_component_write(component, reg, runtime->rate);
 197 }
 198
 199 static int stac9766_set_bias_level(struct snd_soc_component *component,
 200                                    enum snd_soc_bias_level level)
 201 {
 202         switch (level) {
 203         case SND_SOC_BIAS_ON: /* full On */
 204         case SND_SOC_BIAS_PREPARE: /* partial On */
 205         case SND_SOC_BIAS_STANDBY: /* Off, with power */
 206                 snd_soc_component_write(component, AC97_POWERDOWN, 0x0000);
 207                 break;
 208         case SND_SOC_BIAS_OFF: /* Off, without power */
 209                 /* disable everything including AC link */
 210                 snd_soc_component_write(component, AC97_POWERDOWN, 0xffff);
 211                 break;
 212         }
 213         return 0;
 214 }
 215
 216 static int stac9766_component_resume(struct snd_soc_component *component)
 217 {
 218         struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
 219
 220         return snd_ac97_reset(ac97, true, STAC9766_VENDOR_ID,
 221                 STAC9766_VENDOR_ID_MASK);
 222 }
 223
 224 static const struct snd_soc_dai_ops stac9766_dai_ops_analog = {
 225         .prepare = ac97_analog_prepare,
 226 };
 227
 228 static const struct snd_soc_dai_ops stac9766_dai_ops_digital = {
 229         .prepare = ac97_digital_prepare,
 230 };
 231
 232 static struct snd_soc_dai_driver stac9766_dai[] = {
 233 {
 234         .name = "stac9766-hifi-analog",
 235
 236         /* stream cababilities */
 237         .playback = {
 238                 .stream_name = "stac9766 analog",
 239                 .channels_min = 1,
 240                 .channels_max = 2,
 241                 .rates = SNDRV_PCM_RATE_8000_48000,
 242                 .formats = SND_SOC_STD_AC97_FMTS,
 243         },
 244         .capture = {
 245                 .stream_name = "stac9766 analog",
 246                 .channels_min = 1,
 247                 .channels_max = 2,
 248                 .rates = SNDRV_PCM_RATE_8000_48000,
 249                 .formats = SND_SOC_STD_AC97_FMTS,
 250         },
 251         /* alsa ops */
 252         .ops = &stac9766_dai_ops_analog,
 253 },
 254 {
 255         .name = "stac9766-hifi-IEC958",
 256
 257         /* stream cababilities */
 258         .playback = {
 259                 .stream_name = "stac9766 IEC958",
 260                 .channels_min = 1,
 261                 .channels_max = 2,
 262                 .rates = SNDRV_PCM_RATE_32000 | \
 263                         SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
 264                 .formats = SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE,
 265         },
 266         /* alsa ops */
 267         .ops = &stac9766_dai_ops_digital,
 268 }
 269 };
 270
 271 static int stac9766_component_probe(struct snd_soc_component *component)
 272 {
 273         struct snd_ac97 *ac97;
 274         struct regmap *regmap;
 275         int ret;
 276
 277         ac97 = snd_soc_new_ac97_component(component, STAC9766_VENDOR_ID,
 278                         STAC9766_VENDOR_ID_MASK);
 279         if (IS_ERR(ac97))
 280                 return PTR_ERR(ac97);
 281
 282         regmap = regmap_init_ac97(ac97, &stac9766_regmap_config);
 283         if (IS_ERR(regmap)) {
 284                 ret = PTR_ERR(regmap);
 285                 goto err_free_ac97;
 286         }
 287
 288         snd_soc_component_init_regmap(component, regmap);
 289         snd_soc_component_set_drvdata(component, ac97);
 290
 291         return 0;
 292 err_free_ac97:
 293         snd_soc_free_ac97_component(ac97);
 294         return ret;
 295 }
 296
 297 static void stac9766_component_remove(struct snd_soc_component *component)
 298 {
 299         struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
 300
 301         snd_soc_component_exit_regmap(component);
 302         snd_soc_free_ac97_component(ac97);
 303 }
 304
 305 static const struct snd_soc_component_driver soc_component_dev_stac9766 = {
 306         .controls               = stac9766_snd_ac97_controls,
 307         .num_controls           = ARRAY_SIZE(stac9766_snd_ac97_controls),
 308         .set_bias_level         = stac9766_set_bias_level,
 309         .probe                  = stac9766_component_probe,
 310         .remove                 = stac9766_component_remove,
 311         .resume                 = stac9766_component_resume,
 312         .suspend_bias_off       = 1,
 313         .idle_bias_on           = 1,
 314         .use_pmdown_time        = 1,
 315         .endianness             = 1,
 316         .non_legacy_dai_naming  = 1,
 317
 318 };
 319
 320 static int stac9766_probe(struct platform_device *pdev)
 321 {
 322         return devm_snd_soc_register_component(&pdev->dev,
 323                         &soc_component_dev_stac9766, stac9766_dai, ARRAY_SIZE(stac9766_dai));
 324 }
 325
 326 static struct platform_driver stac9766_codec_driver = {
 327         .driver = {
 328                         .name = "stac9766-codec",
 329         },
 330
 331         .probe = stac9766_probe,
 332 };
 333
 334 module_platform_driver(stac9766_codec_driver);
 335
 336 MODULE_DESCRIPTION("ASoC stac9766 driver");
 337 MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
 338 MODULE_LICENSE("GPL");