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/*
* wm9705.c -- ALSA Soc WM9705 codec support
*
* Copyright 2008 Ian Molton <spyro@f2s.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; Version 2 of the License only.
*
*/
#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>
#define WM9705_VENDOR_ID 0x574d4c05
#define WM9705_VENDOR_ID_MASK 0xffffffff
static const struct reg_default wm9705_reg_defaults[] = {
{ 0x02, 0x8000 },
{ 0x04, 0x8000 },
{ 0x06, 0x8000 },
{ 0x0a, 0x8000 },
{ 0x0c, 0x8008 },
{ 0x0e, 0x8008 },
{ 0x10, 0x8808 },
{ 0x12, 0x8808 },
{ 0x14, 0x8808 },
{ 0x16, 0x8808 },
{ 0x18, 0x8808 },
{ 0x1a, 0x0000 },
{ 0x1c, 0x8000 },
{ 0x20, 0x0000 },
{ 0x22, 0x0000 },
{ 0x26, 0x000f },
{ 0x28, 0x0605 },
{ 0x2a, 0x0000 },
{ 0x2c, 0xbb80 },
{ 0x32, 0xbb80 },
{ 0x34, 0x2000 },
{ 0x5a, 0x0000 },
{ 0x5c, 0x0000 },
{ 0x72, 0x0808 },
{ 0x74, 0x0000 },
{ 0x76, 0x0006 },
{ 0x78, 0x0000 },
{ 0x7a, 0x0000 },
};
static const struct regmap_config wm9705_regmap_config = {
.reg_bits = 16,
.reg_stride = 2,
.val_bits = 16,
.max_register = 0x7e,
.cache_type = REGCACHE_RBTREE,
.volatile_reg = regmap_ac97_default_volatile,
.reg_defaults = wm9705_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(wm9705_reg_defaults),
};
static const struct snd_kcontrol_new wm9705_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_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
SOC_SINGLE("PCBeep Playback Volume", AC97_PC_BEEP, 1, 15, 1),
SOC_SINGLE("Phone Playback Volume", AC97_PHONE, 0, 31, 1),
SOC_DOUBLE("Line Playback Volume", AC97_LINE, 8, 0, 31, 1),
SOC_DOUBLE("CD Playback Volume", AC97_CD, 8, 0, 31, 1),
SOC_SINGLE("Mic Playback Volume", AC97_MIC, 0, 31, 1),
SOC_SINGLE("Mic 20dB Boost Switch", AC97_MIC, 6, 1, 0),
SOC_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0),
SOC_SINGLE("Capture Switch", AC97_REC_GAIN, 15, 1, 1),
};
static const char *wm9705_mic[] = {"Mic 1", "Mic 2"};
static const char *wm9705_rec_sel[] = {"Mic", "CD", "NC", "NC",
"Line", "Stereo Mix", "Mono Mix", "Phone"};
static SOC_ENUM_SINGLE_DECL(wm9705_enum_mic,
AC97_GENERAL_PURPOSE, 8, wm9705_mic);
static SOC_ENUM_SINGLE_DECL(wm9705_enum_rec_l,
AC97_REC_SEL, 8, wm9705_rec_sel);
static SOC_ENUM_SINGLE_DECL(wm9705_enum_rec_r,
AC97_REC_SEL, 0, wm9705_rec_sel);
/* Headphone Mixer */
static const struct snd_kcontrol_new wm9705_hp_mixer_controls[] = {
SOC_DAPM_SINGLE("PCBeep Playback Switch", AC97_PC_BEEP, 15, 1, 1),
SOC_DAPM_SINGLE("CD Playback Switch", AC97_CD, 15, 1, 1),
SOC_DAPM_SINGLE("Mic Playback Switch", AC97_MIC, 15, 1, 1),
SOC_DAPM_SINGLE("Phone Playback Switch", AC97_PHONE, 15, 1, 1),
SOC_DAPM_SINGLE("Line Playback Switch", AC97_LINE, 15, 1, 1),
};
/* Mic source */
static const struct snd_kcontrol_new wm9705_mic_src_controls =
SOC_DAPM_ENUM("Route", wm9705_enum_mic);
/* Capture source */
static const struct snd_kcontrol_new wm9705_capture_selectl_controls =
SOC_DAPM_ENUM("Route", wm9705_enum_rec_l);
static const struct snd_kcontrol_new wm9705_capture_selectr_controls =
SOC_DAPM_ENUM("Route", wm9705_enum_rec_r);
/* DAPM widgets */
static const struct snd_soc_dapm_widget wm9705_dapm_widgets[] = {
SND_SOC_DAPM_MUX("Mic Source", SND_SOC_NOPM, 0, 0,
&wm9705_mic_src_controls),
SND_SOC_DAPM_MUX("Left Capture Source", SND_SOC_NOPM, 0, 0,
&wm9705_capture_selectl_controls),
SND_SOC_DAPM_MUX("Right Capture Source", SND_SOC_NOPM, 0, 0,
&wm9705_capture_selectr_controls),
SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback",
SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback",
SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_MIXER_NAMED_CTL("HP Mixer", SND_SOC_NOPM, 0, 0,
&wm9705_hp_mixer_controls[0],
ARRAY_SIZE(wm9705_hp_mixer_controls)),
SND_SOC_DAPM_MIXER("Mono Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture", SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture", SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_PGA("Headphone PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("Speaker PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("Line PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("Line out PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("Mono PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("Phone PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("Mic PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("PCBEEP PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("CD PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("ADC PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_OUTPUT("HPOUTL"),
SND_SOC_DAPM_OUTPUT("HPOUTR"),
SND_SOC_DAPM_OUTPUT("LOUT"),
SND_SOC_DAPM_OUTPUT("ROUT"),
SND_SOC_DAPM_OUTPUT("MONOOUT"),
SND_SOC_DAPM_INPUT("PHONE"),
SND_SOC_DAPM_INPUT("LINEINL"),
SND_SOC_DAPM_INPUT("LINEINR"),
SND_SOC_DAPM_INPUT("CDINL"),
SND_SOC_DAPM_INPUT("CDINR"),
SND_SOC_DAPM_INPUT("PCBEEP"),
SND_SOC_DAPM_INPUT("MIC1"),
SND_SOC_DAPM_INPUT("MIC2"),
};
/* Audio map
* WM9705 has no switches to disable the route from the inputs to the HP mixer
* so in order to prevent active inputs from forcing the audio outputs to be
* constantly enabled, we use the mutes on those inputs to simulate such
* controls.
*/
static const struct snd_soc_dapm_route wm9705_audio_map[] = {
/* HP mixer */
{"HP Mixer", "PCBeep Playback Switch", "PCBEEP PGA"},
{"HP Mixer", "CD Playback Switch", "CD PGA"},
{"HP Mixer", "Mic Playback Switch", "Mic PGA"},
{"HP Mixer", "Phone Playback Switch", "Phone PGA"},
{"HP Mixer", "Line Playback Switch", "Line PGA"},
{"HP Mixer", NULL, "Left DAC"},
{"HP Mixer", NULL, "Right DAC"},
/* mono mixer */
{"Mono Mixer", NULL, "HP Mixer"},
/* outputs */
{"Headphone PGA", NULL, "HP Mixer"},
{"HPOUTL", NULL, "Headphone PGA"},
{"HPOUTR", NULL, "Headphone PGA"},
{"Line out PGA", NULL, "HP Mixer"},
{"LOUT", NULL, "Line out PGA"},
{"ROUT", NULL, "Line out PGA"},
{"Mono PGA", NULL, "Mono Mixer"},
{"MONOOUT", NULL, "Mono PGA"},
/* inputs */
{"CD PGA", NULL, "CDINL"},
{"CD PGA", NULL, "CDINR"},
{"Line PGA", NULL, "LINEINL"},
{"Line PGA", NULL, "LINEINR"},
{"Phone PGA", NULL, "PHONE"},
{"Mic Source", "Mic 1", "MIC1"},
{"Mic Source", "Mic 2", "MIC2"},
{"Mic PGA", NULL, "Mic Source"},
{"PCBEEP PGA", NULL, "PCBEEP"},
/* Left capture selector */
{"Left Capture Source", "Mic", "Mic Source"},
{"Left Capture Source", "CD", "CDINL"},
{"Left Capture Source", "Line", "LINEINL"},
{"Left Capture Source", "Stereo Mix", "HP Mixer"},
{"Left Capture Source", "Mono Mix", "HP Mixer"},
{"Left Capture Source", "Phone", "PHONE"},
/* Right capture source */
{"Right Capture Source", "Mic", "Mic Source"},
{"Right Capture Source", "CD", "CDINR"},
{"Right Capture Source", "Line", "LINEINR"},
{"Right Capture Source", "Stereo Mix", "HP Mixer"},
{"Right Capture Source", "Mono Mix", "HP Mixer"},
{"Right Capture Source", "Phone", "PHONE"},
{"ADC PGA", NULL, "Left Capture Source"},
{"ADC PGA", NULL, "Right Capture Source"},
/* ADC's */
{"Left ADC", NULL, "ADC PGA"},
{"Right ADC", NULL, "ADC PGA"},
};
static int ac97_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_codec *codec = dai->codec;
int reg;
snd_soc_update_bits(codec, AC97_EXTENDED_STATUS, 0x1, 0x1);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
reg = AC97_PCM_FRONT_DAC_RATE;
else
reg = AC97_PCM_LR_ADC_RATE;
return snd_soc_write(codec, reg, substream->runtime->rate);
}
#define WM9705_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | \
SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \
SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
SNDRV_PCM_RATE_48000)
static const struct snd_soc_dai_ops wm9705_dai_ops = {
.prepare = ac97_prepare,
};
static struct snd_soc_dai_driver wm9705_dai[] = {
{
.name = "wm9705-hifi",
.playback = {
.stream_name = "HiFi Playback",
.channels_min = 1,
.channels_max = 2,
.rates = WM9705_AC97_RATES,
.formats = SND_SOC_STD_AC97_FMTS,
},
.capture = {
.stream_name = "HiFi Capture",
.channels_min = 1,
.channels_max = 2,
.rates = WM9705_AC97_RATES,
.formats = SND_SOC_STD_AC97_FMTS,
},
.ops = &wm9705_dai_ops,
},
{
.name = "wm9705-aux",
.playback = {
.stream_name = "Aux Playback",
.channels_min = 1,
.channels_max = 1,
.rates = WM9705_AC97_RATES,
.formats = SNDRV_PCM_FMTBIT_S16_LE,
},
}
};
#ifdef CONFIG_PM
static int wm9705_soc_suspend(struct snd_soc_codec *codec)
{
regcache_cache_bypass(codec->component.regmap, true);
snd_soc_write(codec, AC97_POWERDOWN, 0xffff);
regcache_cache_bypass(codec->component.regmap, false);
return 0;
}
static int wm9705_soc_resume(struct snd_soc_codec *codec)
{
struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
int ret;
ret = snd_ac97_reset(ac97, true, WM9705_VENDOR_ID,
WM9705_VENDOR_ID_MASK);
if (ret < 0)
return ret;
regcache_sync(codec->component.regmap);
return 0;
}
#else
#define wm9705_soc_suspend NULL
#define wm9705_soc_resume NULL
#endif
static int wm9705_soc_probe(struct snd_soc_codec *codec)
{
struct snd_ac97 *ac97;
struct regmap *regmap;
int ret;
ac97 = snd_soc_new_ac97_codec(codec, WM9705_VENDOR_ID,
WM9705_VENDOR_ID_MASK);
if (IS_ERR(ac97)) {
dev_err(codec->dev, "Failed to register AC97 codec\n");
return PTR_ERR(ac97);
}
regmap = regmap_init_ac97(ac97, &wm9705_regmap_config);
if (IS_ERR(regmap)) {
ret = PTR_ERR(regmap);
goto err_free_ac97_codec;
}
snd_soc_codec_set_drvdata(codec, ac97);
snd_soc_codec_init_regmap(codec, regmap);
return 0;
err_free_ac97_codec:
snd_soc_free_ac97_codec(ac97);
return ret;
}
static int wm9705_soc_remove(struct snd_soc_codec *codec)
{
struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
snd_soc_codec_exit_regmap(codec);
snd_soc_free_ac97_codec(ac97);
return 0;
}
static const struct snd_soc_codec_driver soc_codec_dev_wm9705 = {
.probe = wm9705_soc_probe,
.remove = wm9705_soc_remove,
.suspend = wm9705_soc_suspend,
.resume = wm9705_soc_resume,
.component_driver = {
.controls = wm9705_snd_ac97_controls,
.num_controls = ARRAY_SIZE(wm9705_snd_ac97_controls),
.dapm_widgets = wm9705_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(wm9705_dapm_widgets),
.dapm_routes = wm9705_audio_map,
.num_dapm_routes = ARRAY_SIZE(wm9705_audio_map),
},
};
static int wm9705_probe(struct platform_device *pdev)
{
return snd_soc_register_codec(&pdev->dev,
&soc_codec_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai));
}
static int wm9705_remove(struct platform_device *pdev)
{
snd_soc_unregister_codec(&pdev->dev);
return 0;
}
static struct platform_driver wm9705_codec_driver = {
.driver = {
.name = "wm9705-codec",
},
.probe = wm9705_probe,
.remove = wm9705_remove,
};
module_platform_driver(wm9705_codec_driver);
MODULE_DESCRIPTION("ASoC WM9705 driver");
MODULE_AUTHOR("Ian Molton");
MODULE_LICENSE("GPL v2");
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