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-rw-r--r--sound/soc/codecs/tlv320dac33.c49
1 files changed, 32 insertions, 17 deletions
diff --git a/sound/soc/codecs/tlv320dac33.c b/sound/soc/codecs/tlv320dac33.c
index 5037454974b..b67961dd2a1 100644
--- a/sound/soc/codecs/tlv320dac33.c
+++ b/sound/soc/codecs/tlv320dac33.c
@@ -59,6 +59,12 @@ enum dac33_state {
DAC33_FLUSH,
};
+enum dac33_fifo_modes {
+ DAC33_FIFO_BYPASS = 0,
+ DAC33_FIFO_MODE1,
+ DAC33_FIFO_LAST_MODE,
+};
+
#define DAC33_NUM_SUPPLIES 3
static const char *dac33_supply_names[DAC33_NUM_SUPPLIES] = {
"AVDD",
@@ -82,7 +88,7 @@ struct tlv320dac33_priv {
* this */
unsigned int nsample_max; /* nsample should not be higher than
* this */
- unsigned int nsample_switch; /* Use FIFO or bypass FIFO switch */
+ enum dac33_fifo_modes fifo_mode;/* FIFO mode selection */
unsigned int nsample; /* burst read amount from host */
enum dac33_state state;
@@ -381,39 +387,48 @@ static int dac33_set_nsample(struct snd_kcontrol *kcontrol,
return ret;
}
-static int dac33_get_nsample_switch(struct snd_kcontrol *kcontrol,
+static int dac33_get_fifo_mode(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
struct tlv320dac33_priv *dac33 = codec->private_data;
- ucontrol->value.integer.value[0] = dac33->nsample_switch;
+ ucontrol->value.integer.value[0] = dac33->fifo_mode;
return 0;
}
-static int dac33_set_nsample_switch(struct snd_kcontrol *kcontrol,
+static int dac33_set_fifo_mode(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
struct tlv320dac33_priv *dac33 = codec->private_data;
int ret = 0;
- if (dac33->nsample_switch == ucontrol->value.integer.value[0])
+ if (dac33->fifo_mode == ucontrol->value.integer.value[0])
return 0;
/* Do not allow changes while stream is running*/
if (codec->active)
return -EPERM;
if (ucontrol->value.integer.value[0] < 0 ||
- ucontrol->value.integer.value[0] > 1)
+ ucontrol->value.integer.value[0] >= DAC33_FIFO_LAST_MODE)
ret = -EINVAL;
else
- dac33->nsample_switch = ucontrol->value.integer.value[0];
+ dac33->fifo_mode = ucontrol->value.integer.value[0];
return ret;
}
+/* Codec operation modes */
+static const char *dac33_fifo_mode_texts[] = {
+ "Bypass", "Mode 1"
+};
+
+static const struct soc_enum dac33_fifo_mode_enum =
+ SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(dac33_fifo_mode_texts),
+ dac33_fifo_mode_texts);
+
/*
* DACL/R digital volume control:
* from 0 dB to -63.5 in 0.5 dB steps
@@ -436,8 +451,8 @@ static const struct snd_kcontrol_new dac33_snd_controls[] = {
static const struct snd_kcontrol_new dac33_nsample_snd_controls[] = {
SOC_SINGLE_EXT("nSample", 0, 0, 5900, 0,
dac33_get_nsample, dac33_set_nsample),
- SOC_SINGLE_EXT("nSample Switch", 0, 0, 1, 0,
- dac33_get_nsample_switch, dac33_set_nsample_switch),
+ SOC_ENUM_EXT("FIFO Mode", dac33_fifo_mode_enum,
+ dac33_get_fifo_mode, dac33_set_fifo_mode),
};
/* Analog bypass */
@@ -586,7 +601,7 @@ static void dac33_shutdown(struct snd_pcm_substream *substream,
unsigned int pwr_ctrl;
/* Stop pending workqueue */
- if (dac33->nsample_switch)
+ if (dac33->fifo_mode)
cancel_work_sync(&dac33->work);
mutex_lock(&dac33->mutex);
@@ -714,7 +729,7 @@ static int dac33_prepare_chip(struct snd_pcm_substream *substream)
dac33_oscwait(codec);
- if (dac33->nsample_switch) {
+ if (dac33->fifo_mode) {
/* 50-51 : ASRC Control registers */
dac33_write(codec, DAC33_ASRC_CTRL_A, (1 << 4)); /* div=2 */
dac33_write(codec, DAC33_ASRC_CTRL_B, 1); /* ??? */
@@ -734,7 +749,7 @@ static int dac33_prepare_chip(struct snd_pcm_substream *substream)
dac33_write(codec, DAC33_ASRC_CTRL_B, 0); /* ??? */
}
- if (dac33->nsample_switch)
+ if (dac33->fifo_mode)
fifoctrl_a &= ~DAC33_FBYPAS;
else
fifoctrl_a |= DAC33_FBYPAS;
@@ -742,13 +757,13 @@ static int dac33_prepare_chip(struct snd_pcm_substream *substream)
dac33_write(codec, DAC33_SER_AUDIOIF_CTRL_A, aictrl_a);
reg_tmp = dac33_read_reg_cache(codec, DAC33_SER_AUDIOIF_CTRL_B);
- if (dac33->nsample_switch)
+ if (dac33->fifo_mode)
reg_tmp &= ~DAC33_BCLKON;
else
reg_tmp |= DAC33_BCLKON;
dac33_write(codec, DAC33_SER_AUDIOIF_CTRL_B, reg_tmp);
- if (dac33->nsample_switch) {
+ if (dac33->fifo_mode) {
/* 20: BCLK divide ratio */
dac33_write(codec, DAC33_SER_AUDIOIF_CTRL_C, 3);
@@ -828,7 +843,7 @@ static int dac33_pcm_trigger(struct snd_pcm_substream *substream, int cmd,
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- if (dac33->nsample_switch) {
+ if (dac33->fifo_mode) {
dac33->state = DAC33_PREFILL;
queue_work(dac33->dac33_wq, &dac33->work);
}
@@ -836,7 +851,7 @@ static int dac33_pcm_trigger(struct snd_pcm_substream *substream, int cmd,
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- if (dac33->nsample_switch) {
+ if (dac33->fifo_mode) {
dac33->state = DAC33_FLUSH;
queue_work(dac33->dac33_wq, &dac33->work);
}
@@ -1125,7 +1140,7 @@ static int dac33_i2c_probe(struct i2c_client *client,
dac33->irq = client->irq;
dac33->nsample = NSAMPLE_MAX;
/* Disable FIFO use by default */
- dac33->nsample_switch = 0;
+ dac33->fifo_mode = DAC33_FIFO_BYPASS;
tlv320dac33_codec = codec;