ASoC: Add JZ4740 codec driver
This patch adds support for the JZ4740 internal codec. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Lars-Peter Clausen
Mark Brown
Родитель
11bd3dd1b7
Коммит
3b097d64ea
|
|
@ -25,6 +25,7 @@ config SND_SOC_ALL_CODECS
|
|||
select SND_SOC_CS42L51 if I2C
|
||||
select SND_SOC_CS4270 if I2C
|
||||
select SND_SOC_DA7210 if I2C
|
||||
select SND_SOC_JZ4740 if SOC_JZ4740
|
||||
select SND_SOC_MAX9877 if I2C
|
||||
select SND_SOC_PCM3008
|
||||
select SND_SOC_SPDIF
|
||||
|
|
@ -139,6 +140,9 @@ config SND_SOC_CS4270_VD33_ERRATA
|
|||
config SND_SOC_CX20442
|
||||
tristate
|
||||
|
||||
config SND_SOC_JZ4740_CODEC
|
||||
tristate
|
||||
|
||||
config SND_SOC_L3
|
||||
tristate
|
||||
|
||||
|
|
|
|||
|
|
@ -57,6 +57,7 @@ snd-soc-wm9705-objs := wm9705.o
|
|||
snd-soc-wm9712-objs := wm9712.o
|
||||
snd-soc-wm9713-objs := wm9713.o
|
||||
snd-soc-wm-hubs-objs := wm_hubs.o
|
||||
snd-soc-jz4740-codec-objs := jz4740.o
|
||||
|
||||
# Amp
|
||||
snd-soc-max9877-objs := max9877.o
|
||||
|
|
@ -80,6 +81,7 @@ obj-$(CONFIG_SND_SOC_CS4270) += snd-soc-cs4270.o
|
|||
obj-$(CONFIG_SND_SOC_CX20442) += snd-soc-cx20442.o
|
||||
obj-$(CONFIG_SND_SOC_DA7210) += snd-soc-da7210.o
|
||||
obj-$(CONFIG_SND_SOC_L3) += snd-soc-l3.o
|
||||
obj-$(CONFIG_SND_SOC_JZ4740_CODEC) += snd-soc-jz4740-codec.o
|
||||
obj-$(CONFIG_SND_SOC_PCM3008) += snd-soc-pcm3008.o
|
||||
obj-$(CONFIG_SND_SOC_SPDIF) += snd-soc-spdif.o
|
||||
obj-$(CONFIG_SND_SOC_SSM2602) += snd-soc-ssm2602.o
|
||||
|
|
|
|||
|
|
@ -0,0 +1,511 @@
|
|||
/*
|
||||
* Copyright (C) 2009-2010, 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/slab.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 JZ4740_REG_CODEC_1 0x0
|
||||
#define JZ4740_REG_CODEC_2 0x1
|
||||
|
||||
#define JZ4740_CODEC_1_LINE_ENABLE BIT(29)
|
||||
#define JZ4740_CODEC_1_MIC_ENABLE BIT(28)
|
||||
#define JZ4740_CODEC_1_SW1_ENABLE BIT(27)
|
||||
#define JZ4740_CODEC_1_ADC_ENABLE BIT(26)
|
||||
#define JZ4740_CODEC_1_SW2_ENABLE BIT(25)
|
||||
#define JZ4740_CODEC_1_DAC_ENABLE BIT(24)
|
||||
#define JZ4740_CODEC_1_VREF_DISABLE BIT(20)
|
||||
#define JZ4740_CODEC_1_VREF_AMP_DISABLE BIT(19)
|
||||
#define JZ4740_CODEC_1_VREF_PULLDOWN BIT(18)
|
||||
#define JZ4740_CODEC_1_VREF_LOW_CURRENT BIT(17)
|
||||
#define JZ4740_CODEC_1_VREF_HIGH_CURRENT BIT(16)
|
||||
#define JZ4740_CODEC_1_HEADPHONE_DISABLE BIT(14)
|
||||
#define JZ4740_CODEC_1_HEADPHONE_AMP_CHANGE_ANY BIT(13)
|
||||
#define JZ4740_CODEC_1_HEADPHONE_CHARGE BIT(12)
|
||||
#define JZ4740_CODEC_1_HEADPHONE_PULLDOWN (BIT(11) | BIT(10))
|
||||
#define JZ4740_CODEC_1_HEADPHONE_POWERDOWN_M BIT(9)
|
||||
#define JZ4740_CODEC_1_HEADPHONE_POWERDOWN BIT(8)
|
||||
#define JZ4740_CODEC_1_SUSPEND BIT(1)
|
||||
#define JZ4740_CODEC_1_RESET BIT(0)
|
||||
|
||||
#define JZ4740_CODEC_1_LINE_ENABLE_OFFSET 29
|
||||
#define JZ4740_CODEC_1_MIC_ENABLE_OFFSET 28
|
||||
#define JZ4740_CODEC_1_SW1_ENABLE_OFFSET 27
|
||||
#define JZ4740_CODEC_1_ADC_ENABLE_OFFSET 26
|
||||
#define JZ4740_CODEC_1_SW2_ENABLE_OFFSET 25
|
||||
#define JZ4740_CODEC_1_DAC_ENABLE_OFFSET 24
|
||||
#define JZ4740_CODEC_1_HEADPHONE_DISABLE_OFFSET 14
|
||||
#define JZ4740_CODEC_1_HEADPHONE_POWERDOWN_OFFSET 8
|
||||
|
||||
#define JZ4740_CODEC_2_INPUT_VOLUME_MASK 0x1f0000
|
||||
#define JZ4740_CODEC_2_SAMPLE_RATE_MASK 0x000f00
|
||||
#define JZ4740_CODEC_2_MIC_BOOST_GAIN_MASK 0x000030
|
||||
#define JZ4740_CODEC_2_HEADPHONE_VOLUME_MASK 0x000003
|
||||
|
||||
#define JZ4740_CODEC_2_INPUT_VOLUME_OFFSET 16
|
||||
#define JZ4740_CODEC_2_SAMPLE_RATE_OFFSET 8
|
||||
#define JZ4740_CODEC_2_MIC_BOOST_GAIN_OFFSET 4
|
||||
#define JZ4740_CODEC_2_HEADPHONE_VOLUME_OFFSET 0
|
||||
|
||||
static const uint32_t jz4740_codec_regs[] = {
|
||||
0x021b2302, 0x00170803,
|
||||
};
|
||||
|
||||
struct jz4740_codec {
|
||||
void __iomem *base;
|
||||
struct resource *mem;
|
||||
|
||||
uint32_t reg_cache[2];
|
||||
struct snd_soc_codec codec;
|
||||
};
|
||||
|
||||
static inline struct jz4740_codec *codec_to_jz4740(struct snd_soc_codec *codec)
|
||||
{
|
||||
return container_of(codec, struct jz4740_codec, codec);
|
||||
}
|
||||
|
||||
static unsigned int jz4740_codec_read(struct snd_soc_codec *codec,
|
||||
unsigned int reg)
|
||||
{
|
||||
struct jz4740_codec *jz4740_codec = codec_to_jz4740(codec);
|
||||
return readl(jz4740_codec->base + (reg << 2));
|
||||
}
|
||||
|
||||
static int jz4740_codec_write(struct snd_soc_codec *codec, unsigned int reg,
|
||||
unsigned int val)
|
||||
{
|
||||
struct jz4740_codec *jz4740_codec = codec_to_jz4740(codec);
|
||||
|
||||
jz4740_codec->reg_cache[reg] = val;
|
||||
writel(val, jz4740_codec->base + (reg << 2));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct snd_kcontrol_new jz4740_codec_controls[] = {
|
||||
SOC_SINGLE("Master Playback Volume", JZ4740_REG_CODEC_2,
|
||||
JZ4740_CODEC_2_HEADPHONE_VOLUME_OFFSET, 3, 0),
|
||||
SOC_SINGLE("Master Capture Volume", JZ4740_REG_CODEC_2,
|
||||
JZ4740_CODEC_2_INPUT_VOLUME_OFFSET, 31, 0),
|
||||
SOC_SINGLE("Master Playback Switch", JZ4740_REG_CODEC_1,
|
||||
JZ4740_CODEC_1_HEADPHONE_DISABLE_OFFSET, 1, 1),
|
||||
SOC_SINGLE("Mic Capture Volume", JZ4740_REG_CODEC_2,
|
||||
JZ4740_CODEC_2_MIC_BOOST_GAIN_OFFSET, 3, 0),
|
||||
};
|
||||
|
||||
static const struct snd_kcontrol_new jz4740_codec_output_controls[] = {
|
||||
SOC_DAPM_SINGLE("Bypass Switch", JZ4740_REG_CODEC_1,
|
||||
JZ4740_CODEC_1_SW1_ENABLE_OFFSET, 1, 0),
|
||||
SOC_DAPM_SINGLE("DAC Switch", JZ4740_REG_CODEC_1,
|
||||
JZ4740_CODEC_1_SW2_ENABLE_OFFSET, 1, 0),
|
||||
};
|
||||
|
||||
static const struct snd_kcontrol_new jz4740_codec_input_controls[] = {
|
||||
SOC_DAPM_SINGLE("Line Capture Switch", JZ4740_REG_CODEC_1,
|
||||
JZ4740_CODEC_1_LINE_ENABLE_OFFSET, 1, 0),
|
||||
SOC_DAPM_SINGLE("Mic Capture Switch", JZ4740_REG_CODEC_1,
|
||||
JZ4740_CODEC_1_MIC_ENABLE_OFFSET, 1, 0),
|
||||
};
|
||||
|
||||
static const struct snd_soc_dapm_widget jz4740_codec_dapm_widgets[] = {
|
||||
SND_SOC_DAPM_ADC("ADC", "Capture", JZ4740_REG_CODEC_1,
|
||||
JZ4740_CODEC_1_ADC_ENABLE_OFFSET, 0),
|
||||
SND_SOC_DAPM_DAC("DAC", "Playback", JZ4740_REG_CODEC_1,
|
||||
JZ4740_CODEC_1_DAC_ENABLE_OFFSET, 0),
|
||||
|
||||
SND_SOC_DAPM_MIXER("Output Mixer", JZ4740_REG_CODEC_1,
|
||||
JZ4740_CODEC_1_HEADPHONE_POWERDOWN_OFFSET, 1,
|
||||
jz4740_codec_output_controls,
|
||||
ARRAY_SIZE(jz4740_codec_output_controls)),
|
||||
|
||||
SND_SOC_DAPM_MIXER_NAMED_CTL("Input Mixer", SND_SOC_NOPM, 0, 0,
|
||||
jz4740_codec_input_controls,
|
||||
ARRAY_SIZE(jz4740_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 jz4740_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 jz4740_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_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 <<= JZ4740_CODEC_2_SAMPLE_RATE_OFFSET;
|
||||
|
||||
snd_soc_update_bits(codec, JZ4740_REG_CODEC_2,
|
||||
JZ4740_CODEC_2_SAMPLE_RATE_MASK, val);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct snd_soc_dai_ops jz4740_codec_dai_ops = {
|
||||
.hw_params = jz4740_codec_hw_params,
|
||||
};
|
||||
|
||||
struct snd_soc_dai jz4740_codec_dai = {
|
||||
.name = "jz4740",
|
||||
.playback = {
|
||||
.stream_name = "Playback",
|
||||
.channels_min = 2,
|
||||
.channels_max = 2,
|
||||
.rates = SNDRV_PCM_RATE_8000_48000,
|
||||
.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8,
|
||||
},
|
||||
.capture = {
|
||||
.stream_name = "Capture",
|
||||
.channels_min = 2,
|
||||
.channels_max = 2,
|
||||
.rates = SNDRV_PCM_RATE_8000_48000,
|
||||
.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8,
|
||||
},
|
||||
.ops = &jz4740_codec_dai_ops,
|
||||
.symmetric_rates = 1,
|
||||
};
|
||||
EXPORT_SYMBOL_GPL(jz4740_codec_dai);
|
||||
|
||||
static void jz4740_codec_wakeup(struct snd_soc_codec *codec)
|
||||
{
|
||||
int i;
|
||||
uint32_t *cache = codec->reg_cache;
|
||||
|
||||
snd_soc_update_bits(codec, JZ4740_REG_CODEC_1,
|
||||
JZ4740_CODEC_1_RESET, JZ4740_CODEC_1_RESET);
|
||||
udelay(2);
|
||||
|
||||
snd_soc_update_bits(codec, JZ4740_REG_CODEC_1,
|
||||
JZ4740_CODEC_1_SUSPEND | JZ4740_CODEC_1_RESET, 0);
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(jz4740_codec_regs); ++i)
|
||||
jz4740_codec_write(codec, i, cache[i]);
|
||||
}
|
||||
|
||||
static int jz4740_codec_set_bias_level(struct snd_soc_codec *codec,
|
||||
enum snd_soc_bias_level level)
|
||||
{
|
||||
unsigned int mask;
|
||||
unsigned int value;
|
||||
|
||||
switch (level) {
|
||||
case SND_SOC_BIAS_ON:
|
||||
break;
|
||||
case SND_SOC_BIAS_PREPARE:
|
||||
mask = JZ4740_CODEC_1_VREF_DISABLE |
|
||||
JZ4740_CODEC_1_VREF_AMP_DISABLE |
|
||||
JZ4740_CODEC_1_HEADPHONE_POWERDOWN_M;
|
||||
value = 0;
|
||||
|
||||
snd_soc_update_bits(codec, JZ4740_REG_CODEC_1, mask, value);
|
||||
break;
|
||||
case SND_SOC_BIAS_STANDBY:
|
||||
/* The only way to clear the suspend flag is to reset the codec */
|
||||
if (codec->bias_level == SND_SOC_BIAS_OFF)
|
||||
jz4740_codec_wakeup(codec);
|
||||
|
||||
mask = JZ4740_CODEC_1_VREF_DISABLE |
|
||||
JZ4740_CODEC_1_VREF_AMP_DISABLE |
|
||||
JZ4740_CODEC_1_HEADPHONE_POWERDOWN_M;
|
||||
value = JZ4740_CODEC_1_VREF_DISABLE |
|
||||
JZ4740_CODEC_1_VREF_AMP_DISABLE |
|
||||
JZ4740_CODEC_1_HEADPHONE_POWERDOWN_M;
|
||||
|
||||
snd_soc_update_bits(codec, JZ4740_REG_CODEC_1, mask, value);
|
||||
break;
|
||||
case SND_SOC_BIAS_OFF:
|
||||
mask = JZ4740_CODEC_1_SUSPEND;
|
||||
value = JZ4740_CODEC_1_SUSPEND;
|
||||
|
||||
snd_soc_update_bits(codec, JZ4740_REG_CODEC_1, mask, value);
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
codec->bias_level = level;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct snd_soc_codec *jz4740_codec_codec;
|
||||
|
||||
static int jz4740_codec_dev_probe(struct platform_device *pdev)
|
||||
{
|
||||
int ret;
|
||||
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
|
||||
struct snd_soc_codec *codec = jz4740_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);
|
||||
return ret;
|
||||
}
|
||||
|
||||
snd_soc_add_controls(codec, jz4740_codec_controls,
|
||||
ARRAY_SIZE(jz4740_codec_controls));
|
||||
|
||||
snd_soc_dapm_new_controls(codec, jz4740_codec_dapm_widgets,
|
||||
ARRAY_SIZE(jz4740_codec_dapm_widgets));
|
||||
|
||||
snd_soc_dapm_add_routes(codec, jz4740_codec_dapm_routes,
|
||||
ARRAY_SIZE(jz4740_codec_dapm_routes));
|
||||
|
||||
snd_soc_dapm_new_widgets(codec);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int jz4740_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;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PM_SLEEP
|
||||
|
||||
static int jz4740_codec_suspend(struct platform_device *pdev, pm_message_t state)
|
||||
{
|
||||
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
|
||||
struct snd_soc_codec *codec = socdev->card->codec;
|
||||
|
||||
return jz4740_codec_set_bias_level(codec, SND_SOC_BIAS_OFF);
|
||||
}
|
||||
|
||||
static int jz4740_codec_resume(struct platform_device *pdev)
|
||||
{
|
||||
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
|
||||
struct snd_soc_codec *codec = socdev->card->codec;
|
||||
|
||||
return jz4740_codec_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
|
||||
}
|
||||
|
||||
#else
|
||||
#define jz4740_codec_suspend NULL
|
||||
#define jz4740_codec_resume NULL
|
||||
#endif
|
||||
|
||||
struct snd_soc_codec_device soc_codec_dev_jz4740_codec = {
|
||||
.probe = jz4740_codec_dev_probe,
|
||||
.remove = jz4740_codec_dev_remove,
|
||||
.suspend = jz4740_codec_suspend,
|
||||
.resume = jz4740_codec_resume,
|
||||
};
|
||||
EXPORT_SYMBOL_GPL(soc_codec_dev_jz4740_codec);
|
||||
|
||||
static int __devinit jz4740_codec_probe(struct platform_device *pdev)
|
||||
{
|
||||
int ret;
|
||||
struct jz4740_codec *jz4740_codec;
|
||||
struct snd_soc_codec *codec;
|
||||
struct resource *mem;
|
||||
|
||||
jz4740_codec = kzalloc(sizeof(*jz4740_codec), GFP_KERNEL);
|
||||
if (!jz4740_codec)
|
||||
return -ENOMEM;
|
||||
|
||||
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
if (!mem) {
|
||||
dev_err(&pdev->dev, "Failed to get mmio memory resource\n");
|
||||
ret = -ENOENT;
|
||||
goto err_free_codec;
|
||||
}
|
||||
|
||||
mem = request_mem_region(mem->start, resource_size(mem), pdev->name);
|
||||
if (!mem) {
|
||||
dev_err(&pdev->dev, "Failed to request mmio memory region\n");
|
||||
ret = -EBUSY;
|
||||
goto err_free_codec;
|
||||
}
|
||||
|
||||
jz4740_codec->base = ioremap(mem->start, resource_size(mem));
|
||||
if (!jz4740_codec->base) {
|
||||
dev_err(&pdev->dev, "Failed to ioremap mmio memory\n");
|
||||
ret = -EBUSY;
|
||||
goto err_release_mem_region;
|
||||
}
|
||||
jz4740_codec->mem = mem;
|
||||
|
||||
jz4740_codec_dai.dev = &pdev->dev;
|
||||
|
||||
codec = &jz4740_codec->codec;
|
||||
|
||||
codec->dev = &pdev->dev;
|
||||
codec->name = "jz4740";
|
||||
codec->owner = THIS_MODULE;
|
||||
|
||||
codec->read = jz4740_codec_read;
|
||||
codec->write = jz4740_codec_write;
|
||||
codec->set_bias_level = jz4740_codec_set_bias_level;
|
||||
codec->bias_level = SND_SOC_BIAS_OFF;
|
||||
|
||||
codec->dai = &jz4740_codec_dai;
|
||||
codec->num_dai = 1;
|
||||
|
||||
codec->reg_cache = jz4740_codec->reg_cache;
|
||||
codec->reg_cache_size = 2;
|
||||
memcpy(codec->reg_cache, jz4740_codec_regs, sizeof(jz4740_codec_regs));
|
||||
|
||||
mutex_init(&codec->mutex);
|
||||
INIT_LIST_HEAD(&codec->dapm_widgets);
|
||||
INIT_LIST_HEAD(&codec->dapm_paths);
|
||||
|
||||
jz4740_codec_codec = codec;
|
||||
|
||||
snd_soc_update_bits(codec, JZ4740_REG_CODEC_1,
|
||||
JZ4740_CODEC_1_SW2_ENABLE, JZ4740_CODEC_1_SW2_ENABLE);
|
||||
|
||||
platform_set_drvdata(pdev, jz4740_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(&jz4740_codec_dai);
|
||||
if (ret) {
|
||||
dev_err(&pdev->dev, "Failed to register codec dai\n");
|
||||
goto err_unregister_codec;
|
||||
}
|
||||
|
||||
jz4740_codec_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
|
||||
|
||||
return 0;
|
||||
|
||||
err_unregister_codec:
|
||||
snd_soc_unregister_codec(codec);
|
||||
err_iounmap:
|
||||
iounmap(jz4740_codec->base);
|
||||
err_release_mem_region:
|
||||
release_mem_region(mem->start, resource_size(mem));
|
||||
err_free_codec:
|
||||
kfree(jz4740_codec);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int __devexit jz4740_codec_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct jz4740_codec *jz4740_codec = platform_get_drvdata(pdev);
|
||||
struct resource *mem = jz4740_codec->mem;
|
||||
|
||||
snd_soc_unregister_dai(&jz4740_codec_dai);
|
||||
snd_soc_unregister_codec(&jz4740_codec->codec);
|
||||
|
||||
iounmap(jz4740_codec->base);
|
||||
release_mem_region(mem->start, resource_size(mem));
|
||||
|
||||
platform_set_drvdata(pdev, NULL);
|
||||
kfree(jz4740_codec);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct platform_driver jz4740_codec_driver = {
|
||||
.probe = jz4740_codec_probe,
|
||||
.remove = __devexit_p(jz4740_codec_remove),
|
||||
.driver = {
|
||||
.name = "jz4740-codec",
|
||||
.owner = THIS_MODULE,
|
||||
},
|
||||
};
|
||||
|
||||
static int __init jz4740_codec_init(void)
|
||||
{
|
||||
return platform_driver_register(&jz4740_codec_driver);
|
||||
}
|
||||
module_init(jz4740_codec_init);
|
||||
|
||||
static void __exit jz4740_codec_exit(void)
|
||||
{
|
||||
platform_driver_unregister(&jz4740_codec_driver);
|
||||
}
|
||||
module_exit(jz4740_codec_exit);
|
||||
|
||||
MODULE_DESCRIPTION("JZ4740 SoC internal codec driver");
|
||||
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
MODULE_ALIAS("platform:jz4740-codec");
|
||||
|
|
@ -0,0 +1,20 @@
|
|||
/*
|
||||
* 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.
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef __SND_SOC_CODECS_JZ4740_CODEC_H__
|
||||
#define __SND_SOC_CODECS_JZ4740_CODEC_H__
|
||||
|
||||
extern struct snd_soc_dai jz4740_codec_dai;
|
||||
extern struct snd_soc_codec_device soc_codec_dev_jz4740_codec;
|
||||
|
||||
#endif
|
||||
Загрузка…
Ссылка в новой задаче