openwrtv4/target/linux/xburst/files-2.6.32/sound/soc/codecs/jzcodec.c
Lars-Peter Clausen 541158d5ad Merge xburst target.
SVN-Revision: 19098
2010-01-11 04:44:45 +00:00

520 lines
13 KiB
C

/*
* 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;
snd_soc_update_bits(codec, JZ_REG_CODEC_1,
JZ_CODEC_1_SW2_ENABLE, JZ_CODEC_1_SW2_ENABLE);
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");