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ASoC: ak4535: convert to soc-cache

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Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Axel Lin 2011-10-06 10:11:51 +08:00 committed by Mark Brown
parent fa5fdb473e
commit 3b18450371
1 changed files with 18 additions and 82 deletions
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100
sound/soc/codecs/ak4535.c
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@ -34,7 +34,6 @@
struct ak4535_priv {
unsigned int sysclk;
enum snd_soc_control_type control_type;
void *control_data;
};
/*
@ -47,63 +46,6 @@ static const u16 ak4535_reg[AK4535_CACHEREGNUM] = {
0x0000, 0x0000, 0x0057, 0x0000,
};
/*
* read ak4535 register cache
*/
static inline unsigned int ak4535_read_reg_cache(struct snd_soc_codec *codec,
unsigned int reg)
{
u16 *cache = codec->reg_cache;
if (reg >= AK4535_CACHEREGNUM)
return -1;
return cache[reg];
}
/*
* write ak4535 register cache
*/
static inline void ak4535_write_reg_cache(struct snd_soc_codec *codec,
u16 reg, unsigned int value)
{
u16 *cache = codec->reg_cache;
if (reg >= AK4535_CACHEREGNUM)
return;
cache[reg] = value;
}
/*
* write to the AK4535 register space
*/
static int ak4535_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int value)
{
u8 data[2];
/* data is
* D15..D8 AK4535 register offset
* D7...D0 register data
*/
data[0] = reg & 0xff;
data[1] = value & 0xff;
ak4535_write_reg_cache(codec, reg, value);
if (codec->hw_write(codec->control_data, data, 2) == 2)
return 0;
else
return -EIO;
}
static int ak4535_sync(struct snd_soc_codec *codec)
{
u16 *cache = codec->reg_cache;
int i, r = 0;
for (i = 0; i < AK4535_CACHEREGNUM; i++)
r |= ak4535_write(codec, i, cache[i]);
return r;
};
static const char *ak4535_mono_gain[] = {"+6dB", "-17dB"};
static const char *ak4535_mono_out[] = {"(L + R)/2", "Hi-Z"};
static const char *ak4535_hp_out[] = {"Stereo", "Mono"};
@ -304,7 +246,7 @@ static int ak4535_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_codec *codec = rtd->codec;
struct ak4535_priv *ak4535 = snd_soc_codec_get_drvdata(codec);
u8 mode2 = ak4535_read_reg_cache(codec, AK4535_MODE2) & ~(0x3 << 5);
u8 mode2 = snd_soc_read(codec, AK4535_MODE2) & ~(0x3 << 5);
int rate = params_rate(params), fs = 256;
if (rate)
@ -323,7 +265,7 @@ static int ak4535_hw_params(struct snd_pcm_substream *substream,
}
/* set rate */
ak4535_write(codec, AK4535_MODE2, mode2);
snd_soc_write(codec, AK4535_MODE2, mode2);
return 0;
}
@ -348,44 +290,37 @@ static int ak4535_set_dai_fmt(struct snd_soc_dai *codec_dai,
/* use 32 fs for BCLK to save power */
mode1 |= 0x4;
ak4535_write(codec, AK4535_MODE1, mode1);
snd_soc_write(codec, AK4535_MODE1, mode1);
return 0;
}
static int ak4535_mute(struct snd_soc_dai *dai, int mute)
{
struct snd_soc_codec *codec = dai->codec;
u16 mute_reg = ak4535_read_reg_cache(codec, AK4535_DAC);
u16 mute_reg = snd_soc_read(codec, AK4535_DAC);
if (!mute)
ak4535_write(codec, AK4535_DAC, mute_reg & ~0x20);
snd_soc_write(codec, AK4535_DAC, mute_reg & ~0x20);
else
ak4535_write(codec, AK4535_DAC, mute_reg | 0x20);
snd_soc_write(codec, AK4535_DAC, mute_reg | 0x20);
return 0;
}
static int ak4535_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
u16 i, mute_reg;
switch (level) {
case SND_SOC_BIAS_ON:
mute_reg = ak4535_read_reg_cache(codec, AK4535_DAC);
ak4535_write(codec, AK4535_DAC, mute_reg & ~0x20);
snd_soc_update_bits(codec, AK4535_DAC, 0x20, 0);
break;
case SND_SOC_BIAS_PREPARE:
mute_reg = ak4535_read_reg_cache(codec, AK4535_DAC);
ak4535_write(codec, AK4535_DAC, mute_reg | 0x20);
snd_soc_update_bits(codec, AK4535_DAC, 0x20, 0x20);
break;
case SND_SOC_BIAS_STANDBY:
i = ak4535_read_reg_cache(codec, AK4535_PM1);
ak4535_write(codec, AK4535_PM1, i | 0x80);
i = ak4535_read_reg_cache(codec, AK4535_PM2);
ak4535_write(codec, AK4535_PM2, i & (~0x80));
snd_soc_update_bits(codec, AK4535_PM1, 0x80, 0x80);
snd_soc_update_bits(codec, AK4535_PM2, 0x80, 0);
break;
case SND_SOC_BIAS_OFF:
i = ak4535_read_reg_cache(codec, AK4535_PM1);
ak4535_write(codec, AK4535_PM1, i & (~0x80));
snd_soc_update_bits(codec, AK4535_PM1, 0x80, 0);
break;
}
codec->dapm.bias_level = level;
@ -428,7 +363,7 @@ static int ak4535_suspend(struct snd_soc_codec *codec, pm_message_t state)
static int ak4535_resume(struct snd_soc_codec *codec)
{
ak4535_sync(codec);
snd_soc_cache_sync(codec);
ak4535_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
return 0;
}
@ -436,11 +371,15 @@ static int ak4535_resume(struct snd_soc_codec *codec)
static int ak4535_probe(struct snd_soc_codec *codec)
{
struct ak4535_priv *ak4535 = snd_soc_codec_get_drvdata(codec);
int ret;
printk(KERN_INFO "AK4535 Audio Codec %s", AK4535_VERSION);
codec->control_data = ak4535->control_data;
ret = snd_soc_codec_set_cache_io(codec, 8, 8, ak4535->control_type);
if (ret < 0) {
dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
return ret;
}
/* power on device */
ak4535_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
@ -461,8 +400,6 @@ static struct snd_soc_codec_driver soc_codec_dev_ak4535 = {
.remove = ak4535_remove,
.suspend = ak4535_suspend,
.resume = ak4535_resume,
.read = ak4535_read_reg_cache,
.write = ak4535_write,
.set_bias_level = ak4535_set_bias_level,
.reg_cache_size = ARRAY_SIZE(ak4535_reg),
.reg_word_size = sizeof(u8),
@ -485,7 +422,6 @@ static __devinit int ak4535_i2c_probe(struct i2c_client *i2c,
return -ENOMEM;
i2c_set_clientdata(i2c, ak4535);
ak4535->control_data = i2c;
ak4535->control_type = SND_SOC_I2C;
ret = snd_soc_register_codec(&i2c->dev,