// SPDX-License-Identifier: GPL-2.0-or-later
/*
* stac9766.c -- ALSA SoC STAC9766 codec support
*
* Copyright 2009 Jon Smirl, Digispeaker
* Author: Jon Smirl <jonsmirl@gmail.com>
*
* Features:-
*
* o Support for AC97 Codec, S/PDIF
*/
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/regmap.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/ac97_codec.h>
#include <sound/initval.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#define STAC9766_VENDOR_ID 0 x83847666
#define STAC9766_VENDOR_ID_MASK 0 xffffffff
#define AC97_STAC_DA_CONTROL 0 x6A
#define AC97_STAC_ANALOG_SPECIAL 0 x6E
#define AC97_STAC_STEREO_MIC 0 x78
static const struct reg_default stac9766_reg_defaults[] = {
{ 0 x02, 0 x8000 },
{ 0 x04, 0 x8000 },
{ 0 x06, 0 x8000 },
{ 0 x0a, 0 x0000 },
{ 0 x0c, 0 x8008 },
{ 0 x0e, 0 x8008 },
{ 0 x10, 0 x8808 },
{ 0 x12, 0 x8808 },
{ 0 x14, 0 x8808 },
{ 0 x16, 0 x8808 },
{ 0 x18, 0 x8808 },
{ 0 x1a, 0 x0000 },
{ 0 x1c, 0 x8000 },
{ 0 x20, 0 x0000 },
{ 0 x22, 0 x0000 },
{ 0 x28, 0 x0a05 },
{ 0 x2c, 0 xbb80 },
{ 0 x32, 0 xbb80 },
{ 0 x3a, 0 x2000 },
{ 0 x3e, 0 x0100 },
{ 0 x4c, 0 x0300 },
{ 0 x4e, 0 xffff },
{ 0 x50, 0 x0000 },
{ 0 x52, 0 x0000 },
{ 0 x54, 0 x0000 },
{ 0 x6a, 0 x0000 },
{ 0 x6e, 0 x1000 },
{ 0 x72, 0 x0000 },
{ 0 x78, 0 x0000 },
};
static const struct regmap_config stac9766_regmap_config = {
.reg_bits = 16 ,
.reg_stride = 2 ,
.val_bits = 16 ,
.max_register = 0 x78,
.cache_type = REGCACHE_MAPLE,
.volatile_reg = regmap_ac97_default_volatile,
.reg_defaults = stac9766_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(stac9766_reg_defaults),
};
static const char *stac9766_record_mux[] = {"Mic" , "CD" , "Video" , "AUX" ,
"Line" , "Stereo Mix" , "Mono Mix" , "Phone" };
static const char *stac9766_mono_mux[] = {"Mix" , "Mic" };
static const char *stac9766_mic_mux[] = {"Mic1" , "Mic2" };
static const char *stac9766_SPDIF_mux[] = {"PCM" , "ADC Record" };
static const char *stac9766_popbypass_mux[] = {"Normal" , "Bypass Mixer" };
static const char *stac9766_record_all_mux[] = {"All analog" ,
"Analog plus DAC" };
static const char *stac9766_boost1[] = {"0dB" , "10dB" };
static const char *stac9766_boost2[] = {"0dB" , "20dB" };
static const char *stac9766_stereo_mic[] = {"Off" , "On" };
static SOC_ENUM_DOUBLE_DECL(stac9766_record_enum,
AC97_REC_SEL, 8 , 0 , stac9766_record_mux);
static SOC_ENUM_SINGLE_DECL(stac9766_mono_enum,
AC97_GENERAL_PURPOSE, 9 , stac9766_mono_mux);
static SOC_ENUM_SINGLE_DECL(stac9766_mic_enum,
AC97_GENERAL_PURPOSE, 8 , stac9766_mic_mux);
static SOC_ENUM_SINGLE_DECL(stac9766_SPDIF_enum,
AC97_STAC_DA_CONTROL, 1 , stac9766_SPDIF_mux);
static SOC_ENUM_SINGLE_DECL(stac9766_popbypass_enum,
AC97_GENERAL_PURPOSE, 15 , stac9766_popbypass_mux);
static SOC_ENUM_SINGLE_DECL(stac9766_record_all_enum,
AC97_STAC_ANALOG_SPECIAL, 12 ,
stac9766_record_all_mux);
static SOC_ENUM_SINGLE_DECL(stac9766_boost1_enum,
AC97_MIC, 6 , stac9766_boost1); /* 0/10dB */
static SOC_ENUM_SINGLE_DECL(stac9766_boost2_enum,
AC97_STAC_ANALOG_SPECIAL, 2 , stac9766_boost2); /* 0/20dB */
static SOC_ENUM_SINGLE_DECL(stac9766_stereo_mic_enum,
AC97_STAC_STEREO_MIC, 2 , stac9766_stereo_mic);
static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(master_tlv, -4650 , 150 , 0 );
static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(record_tlv, 0 , 150 , 0 );
static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(beep_tlv, -4500 , 300 , 0 );
static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(mix_tlv, -3450 , 150 , 0 );
static const struct snd_kcontrol_new stac9766_snd_ac97_controls[] = {
SOC_DOUBLE_TLV("Speaker Volume" , AC97_MASTER, 8 , 0 , 31 , 1 , master_tlv),
SOC_SINGLE("Speaker Switch" , AC97_MASTER, 15 , 1 , 1 ),
SOC_DOUBLE_TLV("Headphone Volume" , AC97_HEADPHONE, 8 , 0 , 31 , 1 ,
master_tlv),
SOC_SINGLE("Headphone Switch" , AC97_HEADPHONE, 15 , 1 , 1 ),
SOC_SINGLE_TLV("Mono Out Volume" , AC97_MASTER_MONO, 0 , 31 , 1 ,
master_tlv),
SOC_SINGLE("Mono Out Switch" , AC97_MASTER_MONO, 15 , 1 , 1 ),
SOC_DOUBLE_TLV("Record Volume" , AC97_REC_GAIN, 8 , 0 , 15 , 0 , record_tlv),
SOC_SINGLE("Record Switch" , AC97_REC_GAIN, 15 , 1 , 1 ),
SOC_SINGLE_TLV("Beep Volume" , AC97_PC_BEEP, 1 , 15 , 1 , beep_tlv),
SOC_SINGLE("Beep Switch" , AC97_PC_BEEP, 15 , 1 , 1 ),
SOC_SINGLE("Beep Frequency" , AC97_PC_BEEP, 5 , 127 , 1 ),
SOC_SINGLE_TLV("Phone Volume" , AC97_PHONE, 0 , 31 , 1 , mix_tlv),
SOC_SINGLE("Phone Switch" , AC97_PHONE, 15 , 1 , 1 ),
SOC_ENUM("Mic Boost1" , stac9766_boost1_enum),
SOC_ENUM("Mic Boost2" , stac9766_boost2_enum),
SOC_SINGLE_TLV("Mic Volume" , AC97_MIC, 0 , 31 , 1 , mix_tlv),
SOC_SINGLE("Mic Switch" , AC97_MIC, 15 , 1 , 1 ),
SOC_ENUM("Stereo Mic" , stac9766_stereo_mic_enum),
SOC_DOUBLE_TLV("Line Volume" , AC97_LINE, 8 , 0 , 31 , 1 , mix_tlv),
SOC_SINGLE("Line Switch" , AC97_LINE, 15 , 1 , 1 ),
SOC_DOUBLE_TLV("CD Volume" , AC97_CD, 8 , 0 , 31 , 1 , mix_tlv),
SOC_SINGLE("CD Switch" , AC97_CD, 15 , 1 , 1 ),
SOC_DOUBLE_TLV("AUX Volume" , AC97_AUX, 8 , 0 , 31 , 1 , mix_tlv),
SOC_SINGLE("AUX Switch" , AC97_AUX, 15 , 1 , 1 ),
SOC_DOUBLE_TLV("Video Volume" , AC97_VIDEO, 8 , 0 , 31 , 1 , mix_tlv),
SOC_SINGLE("Video Switch" , AC97_VIDEO, 15 , 1 , 1 ),
SOC_DOUBLE_TLV("DAC Volume" , AC97_PCM, 8 , 0 , 31 , 1 , mix_tlv),
SOC_SINGLE("DAC Switch" , AC97_PCM, 15 , 1 , 1 ),
SOC_SINGLE("Loopback Test Switch" , AC97_GENERAL_PURPOSE, 7 , 1 , 0 ),
SOC_SINGLE("3D Volume" , AC97_3D_CONTROL, 3 , 2 , 1 ),
SOC_SINGLE("3D Switch" , AC97_GENERAL_PURPOSE, 13 , 1 , 0 ),
SOC_ENUM("SPDIF Mux" , stac9766_SPDIF_enum),
SOC_ENUM("Mic1/2 Mux" , stac9766_mic_enum),
SOC_ENUM("Record All Mux" , stac9766_record_all_enum),
SOC_ENUM("Record Mux" , stac9766_record_enum),
SOC_ENUM("Mono Mux" , stac9766_mono_enum),
SOC_ENUM("Pop Bypass Mux" , stac9766_popbypass_enum),
};
static int ac97_analog_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_component *component = dai->component;
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned short reg;
/* enable variable rate audio, disable SPDIF output */
snd_soc_component_update_bits(component, AC97_EXTENDED_STATUS, 0 x5, 0 x1);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
reg = AC97_PCM_FRONT_DAC_RATE;
else
reg = AC97_PCM_LR_ADC_RATE;
return snd_soc_component_write(component, reg, runtime->rate);
}
static int ac97_digital_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_component *component = dai->component;
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned short reg;
snd_soc_component_write(component, AC97_SPDIF, 0 x2002);
/* Enable VRA and SPDIF out */
snd_soc_component_update_bits(component, AC97_EXTENDED_STATUS, 0 x5, 0 x5);
reg = AC97_PCM_FRONT_DAC_RATE;
return snd_soc_component_write(component, reg, runtime->rate);
}
static int stac9766_set_bias_level(struct snd_soc_component *component,
enum snd_soc_bias_level level)
{
switch (level) {
case SND_SOC_BIAS_ON: /* full On */
case SND_SOC_BIAS_PREPARE: /* partial On */
case SND_SOC_BIAS_STANDBY: /* Off, with power */
snd_soc_component_write(component, AC97_POWERDOWN, 0 x0000);
break ;
case SND_SOC_BIAS_OFF: /* Off, without power */
/* disable everything including AC link */
snd_soc_component_write(component, AC97_POWERDOWN, 0 xffff);
break ;
}
return 0 ;
}
static int stac9766_component_resume(struct snd_soc_component *component)
{
struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
return snd_ac97_reset(ac97, true , STAC9766_VENDOR_ID,
STAC9766_VENDOR_ID_MASK);
}
static const struct snd_soc_dai_ops stac9766_dai_ops_analog = {
.prepare = ac97_analog_prepare,
};
static const struct snd_soc_dai_ops stac9766_dai_ops_digital = {
.prepare = ac97_digital_prepare,
};
static struct snd_soc_dai_driver stac9766_dai[] = {
{
.name = "stac9766-hifi-analog" ,
/* stream cababilities */
.playback = {
.stream_name = "stac9766 analog" ,
.channels_min = 1 ,
.channels_max = 2 ,
.rates = SNDRV_PCM_RATE_8000_48000,
.formats = SND_SOC_STD_AC97_FMTS,
},
.capture = {
.stream_name = "stac9766 analog" ,
.channels_min = 1 ,
.channels_max = 2 ,
.rates = SNDRV_PCM_RATE_8000_48000,
.formats = SND_SOC_STD_AC97_FMTS,
},
/* alsa ops */
.ops = &stac9766_dai_ops_analog,
},
{
.name = "stac9766-hifi-IEC958" ,
/* stream cababilities */
.playback = {
.stream_name = "stac9766 IEC958" ,
.channels_min = 1 ,
.channels_max = 2 ,
.rates = SNDRV_PCM_RATE_32000 | \
SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
.formats = SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE,
},
/* alsa ops */
.ops = &stac9766_dai_ops_digital,
}
};
static int stac9766_component_probe(struct snd_soc_component *component)
{
struct snd_ac97 *ac97;
struct regmap *regmap;
int ret;
ac97 = snd_soc_new_ac97_component(component, STAC9766_VENDOR_ID,
STAC9766_VENDOR_ID_MASK);
if (IS_ERR(ac97))
return PTR_ERR(ac97);
regmap = regmap_init_ac97(ac97, &stac9766_regmap_config);
if (IS_ERR(regmap)) {
ret = PTR_ERR(regmap);
goto err_free_ac97;
}
snd_soc_component_init_regmap(component, regmap);
snd_soc_component_set_drvdata(component, ac97);
return 0 ;
err_free_ac97:
snd_soc_free_ac97_component(ac97);
return ret;
}
static void stac9766_component_remove(struct snd_soc_component *component)
{
struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
snd_soc_component_exit_regmap(component);
snd_soc_free_ac97_component(ac97);
}
static const struct snd_soc_component_driver soc_component_dev_stac9766 = {
.controls = stac9766_snd_ac97_controls,
.num_controls = ARRAY_SIZE(stac9766_snd_ac97_controls),
.set_bias_level = stac9766_set_bias_level,
.probe = stac9766_component_probe,
.remove = stac9766_component_remove,
.resume = stac9766_component_resume,
.suspend_bias_off = 1 ,
.idle_bias_on = 1 ,
.use_pmdown_time = 1 ,
.endianness = 1 ,
};
static int stac9766_probe(struct platform_device *pdev)
{
return devm_snd_soc_register_component(&pdev->dev,
&soc_component_dev_stac9766, stac9766_dai, ARRAY_SIZE(stac9766_dai));
}
static struct platform_driver stac9766_codec_driver = {
.driver = {
.name = "stac9766-codec" ,
},
.probe = stac9766_probe,
};
module_platform_driver(stac9766_codec_driver);
MODULE_DESCRIPTION("ASoC stac9766 driver" );
MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>" );
MODULE_LICENSE("GPL" );
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