// SPDX-License-Identifier: GPL-2.0-or-later
/*
* ad1980.c -- ALSA Soc AD1980 codec support
*
* Copyright: Analog Devices Inc.
* Author: Roy Huang <roy.huang@analog.com>
* Cliff Cai <cliff.cai@analog.com>
*/
/*
* WARNING:
*
* Because Analog Devices Inc. discontinued the ad1980 sound chip since
* Sep. 2009, this ad1980 driver is not maintained, tested and supported
* by ADI now.
*/
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/kernel.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/soc.h>
static const struct reg_default ad1980_reg_defaults[] = {
{ 0 x02, 0 x8000 },
{ 0 x04, 0 x8000 },
{ 0 x06, 0 x8000 },
{ 0 x0c, 0 x8008 },
{ 0 x0e, 0 x8008 },
{ 0 x10, 0 x8808 },
{ 0 x12, 0 x8808 },
{ 0 x16, 0 x8808 },
{ 0 x18, 0 x8808 },
{ 0 x1a, 0 x0000 },
{ 0 x1c, 0 x8000 },
{ 0 x20, 0 x0000 },
{ 0 x28, 0 x03c7 },
{ 0 x2c, 0 xbb80 },
{ 0 x2e, 0 xbb80 },
{ 0 x30, 0 xbb80 },
{ 0 x32, 0 xbb80 },
{ 0 x36, 0 x8080 },
{ 0 x38, 0 x8080 },
{ 0 x3a, 0 x2000 },
{ 0 x60, 0 x0000 },
{ 0 x62, 0 x0000 },
{ 0 x72, 0 x0000 },
{ 0 x74, 0 x1001 },
{ 0 x76, 0 x0000 },
};
static bool ad1980_readable_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case AC97_RESET ... AC97_MASTER_MONO:
case AC97_PHONE ... AC97_CD:
case AC97_AUX ... AC97_GENERAL_PURPOSE:
case AC97_POWERDOWN ... AC97_PCM_LR_ADC_RATE:
case AC97_SPDIF:
case AC97_CODEC_CLASS_REV:
case AC97_PCI_SVID:
case AC97_AD_CODEC_CFG:
case AC97_AD_JACK_SPDIF:
case AC97_AD_SERIAL_CFG:
case AC97_VENDOR_ID1:
case AC97_VENDOR_ID2:
return true ;
default :
return false ;
}
}
static bool ad1980_writeable_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case AC97_VENDOR_ID1:
case AC97_VENDOR_ID2:
return false ;
default :
return ad1980_readable_reg(dev, reg);
}
}
static const struct regmap_config ad1980_regmap_config = {
.reg_bits = 16 ,
.reg_stride = 2 ,
.val_bits = 16 ,
.max_register = 0 x7e,
.cache_type = REGCACHE_MAPLE,
.volatile_reg = regmap_ac97_default_volatile,
.readable_reg = ad1980_readable_reg,
.writeable_reg = ad1980_writeable_reg,
.reg_defaults = ad1980_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(ad1980_reg_defaults),
};
static const char *ad1980_rec_sel[] = {"Mic" , "CD" , "NC" , "AUX" , "Line" ,
"Stereo Mix" , "Mono Mix" , "Phone" };
static SOC_ENUM_DOUBLE_DECL(ad1980_cap_src,
AC97_REC_SEL, 8 , 0 , ad1980_rec_sel);
static const struct snd_kcontrol_new ad1980_snd_ac97_controls[] = {
SOC_DOUBLE("Master Playback Volume" , AC97_MASTER, 8 , 0 , 31 , 1 ),
SOC_SINGLE("Master Playback Switch" , AC97_MASTER, 15 , 1 , 1 ),
SOC_DOUBLE("Headphone Playback Volume" , AC97_HEADPHONE, 8 , 0 , 31 , 1 ),
SOC_SINGLE("Headphone Playback Switch" , AC97_HEADPHONE, 15 , 1 , 1 ),
SOC_DOUBLE("PCM Playback Volume" , AC97_PCM, 8 , 0 , 31 , 1 ),
SOC_SINGLE("PCM Playback Switch" , AC97_PCM, 15 , 1 , 1 ),
SOC_DOUBLE("PCM Capture Volume" , AC97_REC_GAIN, 8 , 0 , 31 , 0 ),
SOC_SINGLE("PCM Capture Switch" , AC97_REC_GAIN, 15 , 1 , 1 ),
SOC_SINGLE("Mono Playback Volume" , AC97_MASTER_MONO, 0 , 31 , 1 ),
SOC_SINGLE("Mono Playback Switch" , AC97_MASTER_MONO, 15 , 1 , 1 ),
SOC_SINGLE("Phone Capture Volume" , AC97_PHONE, 0 , 31 , 1 ),
SOC_SINGLE("Phone Capture Switch" , AC97_PHONE, 15 , 1 , 1 ),
SOC_SINGLE("Mic Volume" , AC97_MIC, 0 , 31 , 1 ),
SOC_SINGLE("Mic Switch" , AC97_MIC, 15 , 1 , 1 ),
SOC_SINGLE("Stereo Mic Switch" , AC97_AD_MISC, 6 , 1 , 0 ),
SOC_DOUBLE("Line HP Swap Switch" , AC97_AD_MISC, 10 , 5 , 1 , 0 ),
SOC_DOUBLE("Surround Playback Volume" , AC97_SURROUND_MASTER, 8 , 0 , 31 , 1 ),
SOC_DOUBLE("Surround Playback Switch" , AC97_SURROUND_MASTER, 15 , 7 , 1 , 1 ),
SOC_DOUBLE("Center/LFE Playback Volume" , AC97_CENTER_LFE_MASTER, 8 , 0 , 31 , 1 ),
SOC_DOUBLE("Center/LFE Playback Switch" , AC97_CENTER_LFE_MASTER, 15 , 7 , 1 , 1 ),
SOC_ENUM("Capture Source" , ad1980_cap_src),
SOC_SINGLE("Mic Boost Switch" , AC97_MIC, 6 , 1 , 0 ),
};
static const struct snd_soc_dapm_widget ad1980_dapm_widgets[] = {
SND_SOC_DAPM_INPUT("MIC1" ),
SND_SOC_DAPM_INPUT("MIC2" ),
SND_SOC_DAPM_INPUT("CD_L" ),
SND_SOC_DAPM_INPUT("CD_R" ),
SND_SOC_DAPM_INPUT("AUX_L" ),
SND_SOC_DAPM_INPUT("AUX_R" ),
SND_SOC_DAPM_INPUT("LINE_IN_L" ),
SND_SOC_DAPM_INPUT("LINE_IN_R" ),
SND_SOC_DAPM_OUTPUT("LFE_OUT" ),
SND_SOC_DAPM_OUTPUT("CENTER_OUT" ),
SND_SOC_DAPM_OUTPUT("LINE_OUT_L" ),
SND_SOC_DAPM_OUTPUT("LINE_OUT_R" ),
SND_SOC_DAPM_OUTPUT("MONO_OUT" ),
SND_SOC_DAPM_OUTPUT("HP_OUT_L" ),
SND_SOC_DAPM_OUTPUT("HP_OUT_R" ),
};
static const struct snd_soc_dapm_route ad1980_dapm_routes[] = {
{ "Capture" , NULL, "MIC1" },
{ "Capture" , NULL, "MIC2" },
{ "Capture" , NULL, "CD_L" },
{ "Capture" , NULL, "CD_R" },
{ "Capture" , NULL, "AUX_L" },
{ "Capture" , NULL, "AUX_R" },
{ "Capture" , NULL, "LINE_IN_L" },
{ "Capture" , NULL, "LINE_IN_R" },
{ "LFE_OUT" , NULL, "Playback" },
{ "CENTER_OUT" , NULL, "Playback" },
{ "LINE_OUT_L" , NULL, "Playback" },
{ "LINE_OUT_R" , NULL, "Playback" },
{ "MONO_OUT" , NULL, "Playback" },
{ "HP_OUT_L" , NULL, "Playback" },
{ "HP_OUT_R" , NULL, "Playback" },
};
static struct snd_soc_dai_driver ad1980_dai = {
.name = "ad1980-hifi" ,
.playback = {
.stream_name = "Playback" ,
.channels_min = 2 ,
.channels_max = 6 ,
.rates = SNDRV_PCM_RATE_48000,
.formats = SND_SOC_STD_AC97_FMTS, },
.capture = {
.stream_name = "Capture" ,
.channels_min = 2 ,
.channels_max = 2 ,
.rates = SNDRV_PCM_RATE_48000,
.formats = SND_SOC_STD_AC97_FMTS, },
};
#define AD1980_VENDOR_ID 0 x41445300
#define AD1980_VENDOR_MASK 0 xffffff00
static int ad1980_reset(struct snd_soc_component *component, int try_warm)
{
struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
unsigned int retry_cnt = 0 ;
int ret;
do {
ret = snd_ac97_reset(ac97, true , AD1980_VENDOR_ID,
AD1980_VENDOR_MASK);
if (ret >= 0 )
return 0 ;
/*
* Set bit 16slot in register 74h, then every slot will has only
* 16 bits. This command is sent out in 20bit mode, in which
* case the first nibble of data is eaten by the addr. (Tag is
* always 16 bit)
*/
snd_soc_component_write(component, AC97_AD_SERIAL_CFG, 0 x9900);
} while (retry_cnt++ < 10 );
dev_err(component->dev, "Failed to reset: AC97 link error\n" );
return -EIO;
}
static int ad1980_soc_probe(struct snd_soc_component *component)
{
struct snd_ac97 *ac97;
struct regmap *regmap;
int ret;
u16 vendor_id2;
u16 ext_status;
ac97 = snd_soc_new_ac97_component(component, 0 , 0 );
if (IS_ERR(ac97)) {
ret = PTR_ERR(ac97);
dev_err(component->dev, "Failed to register AC97 component: %d\n" , ret);
return ret;
}
regmap = regmap_init_ac97(ac97, &ad1980_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);
ret = ad1980_reset(component, 0 );
if (ret < 0 )
goto reset_err;
vendor_id2 = snd_soc_component_read(component, AC97_VENDOR_ID2);
if (vendor_id2 == 0 x5374) {
dev_warn(component->dev,
"Found AD1981 - only 2/2 IN/OUT Channels supported\n" );
}
/* unmute captures and playbacks volume */
snd_soc_component_write(component, AC97_MASTER, 0 x0000);
snd_soc_component_write(component, AC97_PCM, 0 x0000);
snd_soc_component_write(component, AC97_REC_GAIN, 0 x0000);
snd_soc_component_write(component, AC97_CENTER_LFE_MASTER, 0 x0000);
snd_soc_component_write(component, AC97_SURROUND_MASTER, 0 x0000);
/*power on LFE/CENTER/Surround DACs*/
ext_status = snd_soc_component_read(component, AC97_EXTENDED_STATUS);
snd_soc_component_write(component, AC97_EXTENDED_STATUS, ext_status&~0 x3800);
return 0 ;
reset_err:
snd_soc_component_exit_regmap(component);
err_free_ac97:
snd_soc_free_ac97_component(ac97);
return ret;
}
static void ad1980_soc_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_ad1980 = {
.probe = ad1980_soc_probe,
.remove = ad1980_soc_remove,
.controls = ad1980_snd_ac97_controls,
.num_controls = ARRAY_SIZE(ad1980_snd_ac97_controls),
.dapm_widgets = ad1980_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(ad1980_dapm_widgets),
.dapm_routes = ad1980_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(ad1980_dapm_routes),
.idle_bias_on = 1 ,
.use_pmdown_time = 1 ,
.endianness = 1 ,
};
static int ad1980_probe(struct platform_device *pdev)
{
return devm_snd_soc_register_component(&pdev->dev,
&soc_component_dev_ad1980, &ad1980_dai, 1 );
}
static struct platform_driver ad1980_codec_driver = {
.driver = {
.name = "ad1980" ,
},
.probe = ad1980_probe,
};
module_platform_driver(ad1980_codec_driver);
MODULE_DESCRIPTION("ASoC ad1980 driver (Obsolete)" );
MODULE_AUTHOR("Roy Huang, Cliff Cai" );
MODULE_LICENSE("GPL" );
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