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ASoC: soc-cache: Factor-out the hw_read() specific code 

The handling of all snd_soc_x_y_read() functions is similar.
Factor it out into a separate function and update all callers.

Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Dimitris Papastamos 2011-03-22 10:36:59 +00:00 committed by Mark Brown
parent 26e9984cbc
commit b8cbc19520
1 changed files with 18 additions and 96 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

114
sound/soc/soc-cache.c
View File

@ -47,20 +47,19 @@ static int do_hw_write(struct snd_soc_codec *codec, unsigned int reg,
return -EIO; return -EIO;
} }
static unsigned int snd_soc_4_12_read(struct snd_soc_codec *codec, static unsigned int do_hw_read(struct snd_soc_codec *codec, unsigned int reg)
unsigned int reg)
{ {
int ret; int ret;
unsigned int val; unsigned int val;
if (reg >= codec->driver->reg_cache_size || if (reg >= codec->driver->reg_cache_size ||
snd_soc_codec_volatile_register(codec, reg) || snd_soc_codec_volatile_register(codec, reg) ||
codec->cache_bypass) { codec->cache_bypass) {
if (codec->cache_only) if (codec->cache_only)
return -1; return -1;
BUG_ON(!codec->hw_read); BUG_ON(!codec->hw_read);
return codec->hw_read(codec, reg); return codec->hw_read(codec, reg);
} }
ret = snd_soc_cache_read(codec, reg, &val); ret = snd_soc_cache_read(codec, reg, &val);
@ -69,6 +68,12 @@ static unsigned int snd_soc_4_12_read(struct snd_soc_codec *codec,
return val; return val;
} }
static unsigned int snd_soc_4_12_read(struct snd_soc_codec *codec,
unsigned int reg)
{
return do_hw_read(codec, reg);
}
static int snd_soc_4_12_write(struct snd_soc_codec *codec, unsigned int reg, static int snd_soc_4_12_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int value) unsigned int value)
{ {
@ -113,23 +118,7 @@ static int snd_soc_4_12_spi_write(void *control_data, const char *data,
static unsigned int snd_soc_7_9_read(struct snd_soc_codec *codec, static unsigned int snd_soc_7_9_read(struct snd_soc_codec *codec,
unsigned int reg) unsigned int reg)
{ {
int ret; return do_hw_read(codec, reg);
unsigned int val;
if (reg >= codec->driver->reg_cache_size ||
snd_soc_codec_volatile_register(codec, reg) ||
codec->cache_bypass) {
if (codec->cache_only)
return -1;
BUG_ON(!codec->hw_read);
return codec->hw_read(codec, reg);
}
ret = snd_soc_cache_read(codec, reg, &val);
if (ret < 0)
return -1;
return val;
} }
static int snd_soc_7_9_write(struct snd_soc_codec *codec, unsigned int reg, static int snd_soc_7_9_write(struct snd_soc_codec *codec, unsigned int reg,
@ -188,24 +177,7 @@ static int snd_soc_8_8_write(struct snd_soc_codec *codec, unsigned int reg,
static unsigned int snd_soc_8_8_read(struct snd_soc_codec *codec, static unsigned int snd_soc_8_8_read(struct snd_soc_codec *codec,
unsigned int reg) unsigned int reg)
{ {
int ret; return do_hw_read(codec, reg);
unsigned int val;
reg &= 0xff;
if (reg >= codec->driver->reg_cache_size ||
snd_soc_codec_volatile_register(codec, reg) ||
codec->cache_bypass) {
if (codec->cache_only)
return -1;
BUG_ON(!codec->hw_read);
return codec->hw_read(codec, reg);
}
ret = snd_soc_cache_read(codec, reg, &val);
if (ret < 0)
return -1;
return val;
} }
#if defined(CONFIG_SPI_MASTER) #if defined(CONFIG_SPI_MASTER)
@ -253,23 +225,7 @@ static int snd_soc_8_16_write(struct snd_soc_codec *codec, unsigned int reg,
static unsigned int snd_soc_8_16_read(struct snd_soc_codec *codec, static unsigned int snd_soc_8_16_read(struct snd_soc_codec *codec,
unsigned int reg) unsigned int reg)
{ {
int ret; return do_hw_read(codec, reg);
unsigned int val;
if (reg >= codec->driver->reg_cache_size ||
snd_soc_codec_volatile_register(codec, reg) ||
codec->cache_bypass) {
if (codec->cache_only)
return -1;
BUG_ON(!codec->hw_read);
return codec->hw_read(codec, reg);
}
ret = snd_soc_cache_read(codec, reg, &val);
if (ret < 0)
return -1;
return val;
} }
#if defined(CONFIG_SPI_MASTER) #if defined(CONFIG_SPI_MASTER)
@ -389,24 +345,7 @@ static unsigned int snd_soc_16_8_read_i2c(struct snd_soc_codec *codec,
static unsigned int snd_soc_16_8_read(struct snd_soc_codec *codec, static unsigned int snd_soc_16_8_read(struct snd_soc_codec *codec,
unsigned int reg) unsigned int reg)
{ {
int ret; return do_hw_read(codec, reg);
unsigned int val;
reg &= 0xff;
if (reg >= codec->driver->reg_cache_size ||
snd_soc_codec_volatile_register(codec, reg) ||
codec->cache_bypass) {
if (codec->cache_only)
return -1;
BUG_ON(!codec->hw_read);
return codec->hw_read(codec, reg);
}
ret = snd_soc_cache_read(codec, reg, &val);
if (ret < 0)
return -1;
return val;
} }
static int snd_soc_16_8_write(struct snd_soc_codec *codec, unsigned int reg, static int snd_soc_16_8_write(struct snd_soc_codec *codec, unsigned int reg,
@ -473,24 +412,7 @@ static unsigned int snd_soc_16_16_read_i2c(struct snd_soc_codec *codec,
static unsigned int snd_soc_16_16_read(struct snd_soc_codec *codec, static unsigned int snd_soc_16_16_read(struct snd_soc_codec *codec,
unsigned int reg) unsigned int reg)
{ {
int ret; return do_hw_read(codec, reg);
unsigned int val;
if (reg >= codec->driver->reg_cache_size ||
snd_soc_codec_volatile_register(codec, reg) ||
codec->cache_bypass) {
if (codec->cache_only)
return -1;
BUG_ON(!codec->hw_read);
return codec->hw_read(codec, reg);
}
ret = snd_soc_cache_read(codec, reg, &val);
if (ret < 0)
return -1;
return val;
} }
static int snd_soc_16_16_write(struct snd_soc_codec *codec, unsigned int reg, static int snd_soc_16_16_write(struct snd_soc_codec *codec, unsigned int reg,