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4781d4c068
openwrt-xburst/target/linux/xburst/files-2.6.31/sound/soc/codecs/jzcodec.c
Lars-Peter Clausen 4781d4c068 Revert "enable sound default" 
This reverts commit b33c92aaf5.

The commit inverted the semantics for ADC Switch. When the switch is Off Sound
is On and when the switch is On sound is Off. This will certainly confuse users
and apps.

And it did not enable sound by default.
2009-12-18 14:55:20 +01:00

517 lines
13 KiB
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/*
* Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/initval.h>
#include <sound/soc-dapm.h>
#include <sound/soc.h>
#define JZ_REG_CODEC_1 0x0
#define JZ_REG_CODEC_2 0x1
#define JZ_CODEC_1_LINE_ENABLE BIT(29)
#define JZ_CODEC_1_MIC_ENABLE BIT(28)
#define JZ_CODEC_1_SW1_ENABLE BIT(27)
#define JZ_CODEC_1_ADC_ENABLE BIT(26)
#define JZ_CODEC_1_SW2_ENABLE BIT(25)
#define JZ_CODEC_1_DAC_ENABLE BIT(24)
#define JZ_CODEC_1_VREF_DISABLE BIT(20)
#define JZ_CODEC_1_VREF_AMP_DISABLE BIT(19)
#define JZ_CODEC_1_VREF_PULL_DOWN BIT(18)
#define JZ_CODEC_1_VREF_LOW_CURRENT BIT(17)
#define JZ_CODEC_1_VREF_HIGH_CURRENT BIT(16)
#define JZ_CODEC_1_HEADPHONE_DISABLE BIT(14)
#define JZ_CODEC_1_HEADPHONE_AMP_CHANGE_ANY BIT(13)
#define JZ_CODEC_1_HEADPHONE_CHANGE BIT(12)
#define JZ_CODEC_1_HEADPHONE_PULL_DOWN_M BIT(11)
#define JZ_CODEC_1_HEADPHONE_PULL_DOWN_R BIT(10)
#define JZ_CODEC_1_HEADPHONE_POWER_DOWN_M BIT(9)
#define JZ_CODEC_1_HEADPHONE_POWER_DOWN BIT(8)
#define JZ_CODEC_1_SUSPEND BIT(1)
#define JZ_CODEC_1_RESET BIT(0)
#define JZ_CODEC_1_LINE_ENABLE_OFFSET 29
#define JZ_CODEC_1_MIC_ENABLE_OFFSET 28
#define JZ_CODEC_1_SW1_ENABLE_OFFSET 27
#define JZ_CODEC_1_ADC_ENABLE_OFFSET 26
#define JZ_CODEC_1_SW2_ENABLE_OFFSET 25
#define JZ_CODEC_1_DAC_ENABLE_OFFSET 24
#define JZ_CODEC_1_HEADPHONE_DISABLE_OFFSET 14
#define JZ_CODEC_1_HEADPHONE_POWER_DOWN_OFFSET 8
#define JZ_CODEC_2_INPUT_VOLUME_MASK 0x1f0000
#define JZ_CODEC_2_SAMPLE_RATE_MASK 0x000f00
#define JZ_CODEC_2_MIC_BOOST_GAIN_MASK 0x000030
#define JZ_CODEC_2_HEADPHONE_VOLUME_MASK 0x000003
#define JZ_CODEC_2_INPUT_VOLUME_OFFSET 16
#define JZ_CODEC_2_SAMPLE_RATE_OFFSET 8
#define JZ_CODEC_2_MIC_BOOST_GAIN_OFFSET 4
#define JZ_CODEC_2_HEADPHONE_VOLUME_OFFSET 0
struct jz_codec {
void __iomem *base;
struct resource *mem;
uint32_t reg_cache[2];
struct snd_soc_codec codec;
};
inline static struct jz_codec *codec_to_jz(struct snd_soc_codec *codec)
{
return container_of(codec, struct jz_codec, codec);
}
static unsigned int jz_codec_read(struct snd_soc_codec *codec, unsigned int reg)
{
struct jz_codec *jz_codec = codec_to_jz(codec);
return readl(jz_codec->base + (reg << 2));
}
static int jz_codec_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int val)
{
struct jz_codec *jz_codec = codec_to_jz(codec);
jz_codec->reg_cache[reg] = val;
writel(val, jz_codec->base + (reg << 2));
return 0;
}
static const struct snd_kcontrol_new jz_codec_controls[] = {
SOC_SINGLE("Master Playback Volume", JZ_REG_CODEC_2,
JZ_CODEC_2_HEADPHONE_VOLUME_OFFSET, 3, 0),
SOC_SINGLE("Capture Volume", JZ_REG_CODEC_2,
JZ_CODEC_2_INPUT_VOLUME_OFFSET, 31, 0),
SOC_SINGLE("Master Playback Switch", JZ_REG_CODEC_1,
JZ_CODEC_1_HEADPHONE_DISABLE_OFFSET, 1, 1),
SOC_SINGLE("Mic Capture Volume", JZ_REG_CODEC_2,
JZ_CODEC_2_MIC_BOOST_GAIN_OFFSET, 3, 0),
};
static const struct snd_kcontrol_new jz_codec_output_controls[] = {
SOC_DAPM_SINGLE("Bypass Switch", JZ_REG_CODEC_1,
JZ_CODEC_1_SW1_ENABLE_OFFSET, 1, 0),
SOC_DAPM_SINGLE("DAC Switch", JZ_REG_CODEC_1,
JZ_CODEC_1_SW2_ENABLE_OFFSET, 1, 0),
};
static const struct snd_kcontrol_new jz_codec_input_controls[] =
{
SOC_DAPM_SINGLE("Line Capture Switch", JZ_REG_CODEC_1,
JZ_CODEC_1_LINE_ENABLE_OFFSET, 1, 0),
SOC_DAPM_SINGLE("Mic Capture Switch", JZ_REG_CODEC_1,
JZ_CODEC_1_MIC_ENABLE_OFFSET, 1, 0),
};
static const struct snd_soc_dapm_widget jz_codec_dapm_widgets[] = {
SND_SOC_DAPM_ADC("ADC", "Capture", JZ_REG_CODEC_1,
JZ_CODEC_1_ADC_ENABLE_OFFSET, 0),
SND_SOC_DAPM_DAC("DAC", "Playback", JZ_REG_CODEC_1,
JZ_CODEC_1_DAC_ENABLE_OFFSET, 0),
SND_SOC_DAPM_MIXER("Output Mixer", JZ_REG_CODEC_1,
JZ_CODEC_1_HEADPHONE_POWER_DOWN_OFFSET, 1,
jz_codec_output_controls,
ARRAY_SIZE(jz_codec_output_controls)),
SND_SOC_DAPM_MIXER_NAMED_CTL("Input Mixer", SND_SOC_NOPM, 0, 0,
jz_codec_input_controls,
ARRAY_SIZE(jz_codec_input_controls)),
SND_SOC_DAPM_MIXER("Line Input", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_OUTPUT("LOUT"),
SND_SOC_DAPM_OUTPUT("ROUT"),
SND_SOC_DAPM_INPUT("MIC"),
SND_SOC_DAPM_INPUT("LIN"),
SND_SOC_DAPM_INPUT("RIN"),
};
static const struct snd_soc_dapm_route jz_codec_dapm_routes[] = {
{"Line Input", NULL, "LIN"},
{"Line Input", NULL, "RIN"},
{"Input Mixer", "Line Capture Switch", "Line Input"},
{"Input Mixer", "Mic Capture Switch", "MIC"},
{"ADC", NULL, "Input Mixer"},
{"Output Mixer", "Bypass Switch", "Input Mixer"},
{"Output Mixer", "DAC Switch", "DAC"},
{"LOUT", NULL, "Output Mixer"},
{"ROUT", NULL, "Output Mixer"},
};
static int jz_codec_hw_params(struct snd_pcm_substream *substream, struct
snd_pcm_hw_params *params, struct snd_soc_dai *dai)
{
uint32_t val;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_device *socdev = rtd->socdev;
struct snd_soc_codec *codec = socdev->card->codec;
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S8:
case SNDRV_PCM_FORMAT_S16_LE:
case SNDRV_PCM_FORMAT_S18_3LE:
break;
default:
return -EINVAL;
break;
}
switch (params_rate(params)) {
case 8000:
val = 0;
break;
case 11025:
val = 1;
break;
case 12000:
val = 2;
break;
case 16000:
val = 3;
break;
case 22050:
val = 4;
break;
case 24000:
val = 5;
break;
case 32000:
val = 6;
break;
case 44100:
val = 7;
break;
case 48000:
val = 8;
break;
default:
return -EINVAL;
}
val <<= JZ_CODEC_2_SAMPLE_RATE_OFFSET;
snd_soc_update_bits(codec, JZ_REG_CODEC_2,
JZ_CODEC_2_SAMPLE_RATE_MASK, val);
return 0;
}
static int jz_codec_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM:
break;
default:
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
break;
default:
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
break;
default:
return -EINVAL;
}
return 0;
}
static int jz_codec_set_sysclk(struct snd_soc_dai *codec_dai,
int clk_id, unsigned int freq, int dir)
{
return 0;
}
static struct snd_soc_dai_ops jz_codec_dai_ops = {
.hw_params = jz_codec_hw_params,
.set_fmt = jz_codec_set_fmt,
/* .set_clkdiv = jz_codec_set_clkdiv,*/
.set_sysclk = jz_codec_set_sysclk,
};
struct snd_soc_dai jz_codec_dai = {
.name = "jz-codec",
.playback = {
.stream_name = "Playback",
.channels_min = 2,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_44100,
.formats = SNDRV_PCM_FORMAT_S18_3LE,
},
.capture = {
.stream_name = "Capture",
.channels_min = 2,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_44100,
.formats = SNDRV_PCM_FORMAT_S16_LE,
},
.ops = &jz_codec_dai_ops,
.symmetric_rates = 1,
};
EXPORT_SYMBOL_GPL(jz_codec_dai);
static int jz_codec_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
if (codec->bias_level == SND_SOC_BIAS_OFF && level != SND_SOC_BIAS_OFF) {
snd_soc_update_bits(codec, JZ_REG_CODEC_1,
JZ_CODEC_1_RESET, JZ_CODEC_1_RESET);
udelay(2);
snd_soc_update_bits(codec, JZ_REG_CODEC_1,
JZ_CODEC_1_SUSPEND | JZ_CODEC_1_RESET, 0);
}
switch (level) {
case SND_SOC_BIAS_ON:
snd_soc_update_bits(codec, JZ_REG_CODEC_1,
JZ_CODEC_1_VREF_DISABLE | JZ_CODEC_1_VREF_AMP_DISABLE |
JZ_CODEC_1_HEADPHONE_POWER_DOWN_M |
JZ_CODEC_1_VREF_LOW_CURRENT | JZ_CODEC_1_VREF_HIGH_CURRENT,
0);
break;
case SND_SOC_BIAS_PREPARE:
snd_soc_update_bits(codec, JZ_REG_CODEC_1,
JZ_CODEC_1_VREF_LOW_CURRENT | JZ_CODEC_1_VREF_HIGH_CURRENT,
JZ_CODEC_1_VREF_LOW_CURRENT | JZ_CODEC_1_VREF_HIGH_CURRENT);
break;
case SND_SOC_BIAS_STANDBY:
snd_soc_update_bits(codec, JZ_REG_CODEC_1,
JZ_CODEC_1_VREF_DISABLE | JZ_CODEC_1_VREF_AMP_DISABLE,
JZ_CODEC_1_VREF_DISABLE | JZ_CODEC_1_VREF_AMP_DISABLE);
break;
case SND_SOC_BIAS_OFF:
snd_soc_update_bits(codec, JZ_REG_CODEC_1,
JZ_CODEC_1_SUSPEND, JZ_CODEC_1_SUSPEND);
break;
}
codec->bias_level = level;
return 0;
}
static struct snd_soc_codec *jz_codec_codec;
static int jz_codec_dev_probe(struct platform_device *pdev)
{
int ret;
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec = jz_codec_codec;
BUG_ON(!codec);
socdev->card->codec = codec;
ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
if (ret) {
dev_err(&pdev->dev, "Failed to create pcms: %d\n", ret);
goto err;
}
snd_soc_add_controls(codec, jz_codec_controls,
ARRAY_SIZE(jz_codec_controls));
snd_soc_dapm_new_controls(codec, jz_codec_dapm_widgets,
ARRAY_SIZE(jz_codec_dapm_widgets));
snd_soc_dapm_add_routes(codec, jz_codec_dapm_routes,
ARRAY_SIZE(jz_codec_dapm_routes));
snd_soc_dapm_new_widgets(codec);
ret = snd_soc_init_card(socdev);
if (ret) {
dev_err(&pdev->dev, "Failed to register card\n");
goto err;
}
return 0;
err:
snd_soc_free_pcms(socdev);
snd_soc_dapm_free(socdev);
return ret;
}
static int jz_codec_dev_remove(struct platform_device *pdev)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
snd_soc_free_pcms(socdev);
snd_soc_dapm_free(socdev);
return 0;
}
struct snd_soc_codec_device soc_codec_dev_jzcodec = {
.probe = jz_codec_dev_probe,
.remove = jz_codec_dev_remove,
};
EXPORT_SYMBOL_GPL(soc_codec_dev_jzcodec);
static int __devinit jz_codec_probe(struct platform_device *pdev)
{
int ret;
struct jz_codec *jz_codec;
struct snd_soc_codec *codec;
jz_codec = kzalloc(sizeof(*jz_codec), GFP_KERNEL);
if (!jz_codec)
return -ENOMEM;
jz_codec->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!jz_codec->mem) {
dev_err(&pdev->dev, "Failed to get mmio memory resource\n");
ret = -ENOENT;
goto err_free_jz_codec;
}
jz_codec->mem = request_mem_region(jz_codec->mem->start,
resource_size(jz_codec->mem), pdev->name);
if (!jz_codec->mem) {
dev_err(&pdev->dev, "Failed to request mmio memory region\n");
ret = -EBUSY;
goto err_free_jz_codec;
}
jz_codec->base = ioremap(jz_codec->mem->start, resource_size(jz_codec->mem));
if (!jz_codec->base) {
dev_err(&pdev->dev, "Failed to ioremap mmio memory\n");
ret = -EBUSY;
goto err_release_mem_region;
}
jz_codec_dai.dev = &pdev->dev;
codec = &jz_codec->codec;
codec->dev = &pdev->dev;
codec->name = "jz-codec";
codec->owner = THIS_MODULE;
codec->read = jz_codec_read;
codec->write = jz_codec_write;
codec->set_bias_level = jz_codec_set_bias_level;
codec->bias_level = SND_SOC_BIAS_OFF;
codec->dai = &jz_codec_dai;
codec->num_dai = 1;
codec->reg_cache = jz_codec->reg_cache;
codec->reg_cache_size = 2;
codec->private_data = jz_codec;
mutex_init(&codec->mutex);
INIT_LIST_HEAD(&codec->dapm_widgets);
INIT_LIST_HEAD(&codec->dapm_paths);
jz_codec_codec = codec;
platform_set_drvdata(pdev, jz_codec);
ret = snd_soc_register_codec(codec);
if (ret) {
dev_err(&pdev->dev, "Failed to register codec\n");
goto err_iounmap;
}
ret = snd_soc_register_dai(&jz_codec_dai);
if (ret) {
dev_err(&pdev->dev, "Failed to register codec dai\n");
goto err_unregister_codec;
}
jz_codec_set_bias_level (codec, SND_SOC_BIAS_STANDBY);
return 0;
err_unregister_codec:
snd_soc_unregister_codec(codec);
err_iounmap:
iounmap(jz_codec->base);
err_release_mem_region:
release_mem_region(jz_codec->mem->start, resource_size(jz_codec->mem));
err_free_jz_codec:
kfree(jz_codec);
return ret;
}
static int __devexit jz_codec_remove(struct platform_device *pdev)
{
struct jz_codec *jz_codec = platform_get_drvdata(pdev);
snd_soc_unregister_dai(&jz_codec_dai);
snd_soc_unregister_codec(&jz_codec->codec);
iounmap(jz_codec->base);
release_mem_region(jz_codec->mem->start, resource_size(jz_codec->mem));
platform_set_drvdata(pdev, NULL);
kfree(jz_codec);
return 0;
}
static struct platform_driver jz_codec_driver = {
.probe = jz_codec_probe,
.remove = __devexit_p(jz_codec_remove),
.driver = {
.name = "jz4740-codec",
.owner = THIS_MODULE,
},
};
static int __init jz_codec_init(void)
{
return platform_driver_register(&jz_codec_driver);
}
module_init(jz_codec_init);
static void __exit jz_codec_exit(void)
{
platform_driver_unregister(&jz_codec_driver);
}
module_exit(jz_codec_exit);
MODULE_DESCRIPTION("JZ4720/JZ4740 SoC internal codec driver");
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:jz-codec");
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