431 lines
12 KiB
C
431 lines
12 KiB
C
/*
|
|
* 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 <sound/core.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/ac97_codec.h>
|
|
#include <sound/initval.h>
|
|
#include <sound/soc.h>
|
|
#include <sound/soc-dapm.h>
|
|
|
|
#include "wm9705.h"
|
|
|
|
/*
|
|
* WM9705 register cache
|
|
*/
|
|
static const u16 wm9705_reg[] = {
|
|
0x6150, 0x8000, 0x8000, 0x8000, /* 0x0 */
|
|
0x0000, 0x8000, 0x8008, 0x8008, /* 0x8 */
|
|
0x8808, 0x8808, 0x8808, 0x8808, /* 0x10 */
|
|
0x8808, 0x0000, 0x8000, 0x0000, /* 0x18 */
|
|
0x0000, 0x0000, 0x0000, 0x000f, /* 0x20 */
|
|
0x0605, 0x0000, 0xbb80, 0x0000, /* 0x28 */
|
|
0x0000, 0xbb80, 0x0000, 0x0000, /* 0x30 */
|
|
0x0000, 0x2000, 0x0000, 0x0000, /* 0x38 */
|
|
0x0000, 0x0000, 0x0000, 0x0000, /* 0x40 */
|
|
0x0000, 0x0000, 0x0000, 0x0000, /* 0x48 */
|
|
0x0000, 0x0000, 0x0000, 0x0000, /* 0x50 */
|
|
0x0000, 0x0000, 0x0000, 0x0000, /* 0x58 */
|
|
0x0000, 0x0000, 0x0000, 0x0000, /* 0x60 */
|
|
0x0000, 0x0000, 0x0000, 0x0000, /* 0x68 */
|
|
0x0000, 0x0808, 0x0000, 0x0006, /* 0x70 */
|
|
0x0000, 0x0000, 0x574d, 0x4c05, /* 0x78 */
|
|
};
|
|
|
|
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 const struct soc_enum wm9705_enum_mic =
|
|
SOC_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 8, 2, wm9705_mic);
|
|
static const struct soc_enum wm9705_enum_rec_l =
|
|
SOC_ENUM_SINGLE(AC97_REC_SEL, 8, 8, wm9705_rec_sel);
|
|
static const struct soc_enum wm9705_enum_rec_r =
|
|
SOC_ENUM_SINGLE(AC97_REC_SEL, 0, 8, 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 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 wm9705_add_widgets(struct snd_soc_codec *codec)
|
|
{
|
|
snd_soc_dapm_new_controls(codec, wm9705_dapm_widgets,
|
|
ARRAY_SIZE(wm9705_dapm_widgets));
|
|
snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* We use a register cache to enhance read performance. */
|
|
static unsigned int ac97_read(struct snd_soc_codec *codec, unsigned int reg)
|
|
{
|
|
u16 *cache = codec->reg_cache;
|
|
|
|
switch (reg) {
|
|
case AC97_RESET:
|
|
case AC97_VENDOR_ID1:
|
|
case AC97_VENDOR_ID2:
|
|
return soc_ac97_ops.read(codec->ac97, reg);
|
|
default:
|
|
reg = reg >> 1;
|
|
|
|
if (reg >= (ARRAY_SIZE(wm9705_reg)))
|
|
return -EIO;
|
|
|
|
return cache[reg];
|
|
}
|
|
}
|
|
|
|
static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
|
|
unsigned int val)
|
|
{
|
|
u16 *cache = codec->reg_cache;
|
|
|
|
soc_ac97_ops.write(codec->ac97, reg, val);
|
|
reg = reg >> 1;
|
|
if (reg < (ARRAY_SIZE(wm9705_reg)))
|
|
cache[reg] = val;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ac97_prepare(struct snd_pcm_substream *substream,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
|
struct snd_soc_codec *codec = rtd->codec;
|
|
int reg;
|
|
u16 vra;
|
|
|
|
vra = ac97_read(codec, AC97_EXTENDED_STATUS);
|
|
ac97_write(codec, AC97_EXTENDED_STATUS, vra | 0x1);
|
|
|
|
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
|
|
reg = AC97_PCM_FRONT_DAC_RATE;
|
|
else
|
|
reg = AC97_PCM_LR_ADC_RATE;
|
|
|
|
return ac97_write(codec, reg, 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 struct snd_soc_dai_ops wm9705_dai_ops = {
|
|
.prepare = ac97_prepare,
|
|
};
|
|
|
|
static struct snd_soc_dai_driver wm9705_dai[] = {
|
|
{
|
|
.name = "wm9705-hifi",
|
|
.ac97_control = 1,
|
|
.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,
|
|
},
|
|
}
|
|
};
|
|
|
|
static int wm9705_reset(struct snd_soc_codec *codec)
|
|
{
|
|
if (soc_ac97_ops.reset) {
|
|
soc_ac97_ops.reset(codec->ac97);
|
|
if (ac97_read(codec, 0) == wm9705_reg[0])
|
|
return 0; /* Success */
|
|
}
|
|
|
|
return -EIO;
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
static int wm9705_soc_suspend(struct snd_soc_codec *codec, pm_message_t msg)
|
|
{
|
|
soc_ac97_ops.write(codec->ac97, AC97_POWERDOWN, 0xffff);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wm9705_soc_resume(struct snd_soc_codec *codec)
|
|
{
|
|
int i, ret;
|
|
u16 *cache = codec->reg_cache;
|
|
|
|
ret = wm9705_reset(codec);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "could not reset AC97 codec\n");
|
|
return ret;
|
|
}
|
|
|
|
for (i = 2; i < ARRAY_SIZE(wm9705_reg) << 1; i += 2) {
|
|
soc_ac97_ops.write(codec->ac97, i, cache[i>>1]);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#else
|
|
#define wm9705_soc_suspend NULL
|
|
#define wm9705_soc_resume NULL
|
|
#endif
|
|
|
|
static int wm9705_soc_probe(struct snd_soc_codec *codec)
|
|
{
|
|
int ret = 0;
|
|
|
|
printk(KERN_INFO "WM9705 SoC Audio Codec\n");
|
|
|
|
ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "wm9705: failed to register AC97 codec\n");
|
|
return ret;
|
|
}
|
|
|
|
ret = wm9705_reset(codec);
|
|
if (ret)
|
|
goto reset_err;
|
|
|
|
snd_soc_add_controls(codec, wm9705_snd_ac97_controls,
|
|
ARRAY_SIZE(wm9705_snd_ac97_controls));
|
|
wm9705_add_widgets(codec);
|
|
|
|
return 0;
|
|
|
|
reset_err:
|
|
snd_soc_free_ac97_codec(codec);
|
|
return ret;
|
|
}
|
|
|
|
static int wm9705_soc_remove(struct snd_soc_codec *codec)
|
|
{
|
|
snd_soc_free_ac97_codec(codec);
|
|
return 0;
|
|
}
|
|
|
|
static 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,
|
|
.read = ac97_read,
|
|
.write = ac97_write,
|
|
.reg_cache_size = ARRAY_SIZE(wm9705_reg),
|
|
.reg_word_size = sizeof(u16),
|
|
.reg_cache_step = 2,
|
|
.reg_cache_default = wm9705_reg,
|
|
};
|
|
|
|
static __devinit 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 __devexit 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",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
|
|
.probe = wm9705_probe,
|
|
.remove = __devexit_p(wm9705_remove),
|
|
};
|
|
|
|
static int __init wm9705_init(void)
|
|
{
|
|
return platform_driver_register(&wm9705_codec_driver);
|
|
}
|
|
module_init(wm9705_init);
|
|
|
|
static void __exit wm9705_exit(void)
|
|
{
|
|
platform_driver_unregister(&wm9705_codec_driver);
|
|
}
|
|
module_exit(wm9705_exit);
|
|
|
|
MODULE_DESCRIPTION("ASoC WM9705 driver");
|
|
MODULE_AUTHOR("Ian Molton");
|
|
MODULE_LICENSE("GPL v2");
|