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ASoC: tlv320dac33: Introduce prefill and playback state handlers

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Ensure that the code is going to be readable, when new FIFO modes
are introduced later.
Move the prefill and playback state handling to inlined
functions.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Peter Ujfalusi 2009-12-31 10:30:20 +02:00 committed by Mark Brown
parent 7427b4b9a6
commit d4f102d437
1 changed files with 40 additions and 6 deletions
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46
sound/soc/codecs/tlv320dac33.c
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@ -543,6 +543,44 @@ static int dac33_set_bias_level(struct snd_soc_codec *codec,
return 0;
}
static inline void dac33_prefill_handler(struct tlv320dac33_priv *dac33)
{
struct snd_soc_codec *codec;
codec = &dac33->codec;
switch (dac33->fifo_mode) {
case DAC33_FIFO_MODE1:
dac33_write16(codec, DAC33_NSAMPLE_MSB,
DAC33_THRREG(dac33->nsample));
dac33_write16(codec, DAC33_PREFILL_MSB,
DAC33_THRREG(dac33->alarm_threshold));
break;
default:
dev_warn(codec->dev, "Unhandled FIFO mode: %d\n",
dac33->fifo_mode);
break;
}
}
static inline void dac33_playback_handler(struct tlv320dac33_priv *dac33)
{
struct snd_soc_codec *codec;
codec = &dac33->codec;
switch (dac33->fifo_mode) {
case DAC33_FIFO_MODE1:
dac33_write16(codec, DAC33_NSAMPLE_MSB,
DAC33_THRREG(dac33->nsample));
break;
default:
dev_warn(codec->dev, "Unhandled FIFO mode: %d\n",
dac33->fifo_mode);
break;
}
}
static void dac33_work(struct work_struct *work)
{
struct snd_soc_codec *codec;
@ -556,14 +594,10 @@ static void dac33_work(struct work_struct *work)
switch (dac33->state) {
case DAC33_PREFILL:
dac33->state = DAC33_PLAYBACK;
dac33_write16(codec, DAC33_NSAMPLE_MSB,
DAC33_THRREG(dac33->nsample));
dac33_write16(codec, DAC33_PREFILL_MSB,
DAC33_THRREG(dac33->alarm_threshold));
dac33_prefill_handler(dac33);
break;
case DAC33_PLAYBACK:
dac33_write16(codec, DAC33_NSAMPLE_MSB,
DAC33_THRREG(dac33->nsample));
dac33_playback_handler(dac33);
break;
case DAC33_IDLE:
break;