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Diffstat (limited to 'sound/soc/codecs/tlv320dac33.c')
-rw-r--r--sound/soc/codecs/tlv320dac33.c157
1 files changed, 20 insertions, 137 deletions
diff --git a/sound/soc/codecs/tlv320dac33.c b/sound/soc/codecs/tlv320dac33.c
index 776ac80cc1a8..c574ae238973 100644
--- a/sound/soc/codecs/tlv320dac33.c
+++ b/sound/soc/codecs/tlv320dac33.c
@@ -46,8 +46,6 @@
* 6144 stereo */
#define DAC33_BUFFER_SIZE_SAMPLES 6144
-#define NSAMPLE_MAX 5700
-
#define MODE7_LTHR 10
#define MODE7_UTHR (DAC33_BUFFER_SIZE_SAMPLES - 10)
@@ -99,16 +97,10 @@ struct tlv320dac33_priv {
unsigned int refclk;
unsigned int alarm_threshold; /* set to be half of LATENCY_TIME_MS */
- unsigned int nsample_min; /* nsample should not be lower than
- * this */
- unsigned int nsample_max; /* nsample should not be higher than
- * this */
enum dac33_fifo_modes fifo_mode;/* FIFO mode selection */
unsigned int nsample; /* burst read amount from host */
int mode1_latency; /* latency caused by the i2c writes in
* us */
- int auto_fifo_config; /* Configure the FIFO based on the
- * period size */
u8 burst_bclkdiv; /* BCLK divider value in burst mode */
unsigned int burst_rate; /* Interface speed in Burst modes */
@@ -436,73 +428,6 @@ static int dac33_playback_event(struct snd_soc_dapm_widget *w,
return 0;
}
-static int dac33_get_nsample(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
- struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec);
-
- ucontrol->value.integer.value[0] = dac33->nsample;
-
- return 0;
-}
-
-static int dac33_set_nsample(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
- struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec);
- int ret = 0;
-
- if (dac33->nsample == ucontrol->value.integer.value[0])
- return 0;
-
- if (ucontrol->value.integer.value[0] < dac33->nsample_min ||
- ucontrol->value.integer.value[0] > dac33->nsample_max) {
- ret = -EINVAL;
- } else {
- dac33->nsample = ucontrol->value.integer.value[0];
- /* Re calculate the burst time */
- dac33->mode1_us_burst = SAMPLES_TO_US(dac33->burst_rate,
- dac33->nsample);
- }
-
- return ret;
-}
-
-static int dac33_get_uthr(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
- struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec);
-
- ucontrol->value.integer.value[0] = dac33->uthr;
-
- return 0;
-}
-
-static int dac33_set_uthr(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
- struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec);
- int ret = 0;
-
- if (dac33->substream)
- return -EBUSY;
-
- if (dac33->uthr == ucontrol->value.integer.value[0])
- return 0;
-
- if (ucontrol->value.integer.value[0] < (MODE7_LTHR + 10) ||
- ucontrol->value.integer.value[0] > MODE7_UTHR)
- ret = -EINVAL;
- else
- dac33->uthr = ucontrol->value.integer.value[0];
-
- return ret;
-}
-
static int dac33_get_fifo_mode(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
@@ -587,13 +512,6 @@ static const struct snd_kcontrol_new dac33_mode_snd_controls[] = {
dac33_get_fifo_mode, dac33_set_fifo_mode),
};
-static const struct snd_kcontrol_new dac33_fifo_snd_controls[] = {
- SOC_SINGLE_EXT("nSample", 0, 0, 5900, 0,
- dac33_get_nsample, dac33_set_nsample),
- SOC_SINGLE_EXT("UTHR", 0, 0, MODE7_UTHR, 0,
- dac33_get_uthr, dac33_set_uthr),
-};
-
/* Analog bypass */
static const struct snd_kcontrol_new dac33_dapm_abypassl_control =
SOC_DAPM_SINGLE("Switch", DAC33_LINEL_TO_LLO_VOL, 7, 1, 1);
@@ -853,10 +771,6 @@ static void dac33_shutdown(struct snd_pcm_substream *substream,
struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec);
dac33->substream = NULL;
-
- /* Reset the nSample restrictions */
- dac33->nsample_min = 0;
- dac33->nsample_max = NSAMPLE_MAX;
}
static int dac33_hw_params(struct snd_pcm_substream *substream,
@@ -1112,39 +1026,19 @@ static void dac33_calculate_times(struct snd_pcm_substream *substream)
nsample_limit = DAC33_BUFFER_SIZE_SAMPLES -
dac33->alarm_threshold;
- if (dac33->auto_fifo_config) {
- if (period_size <= dac33->alarm_threshold)
- /*
- * Configure nSamaple to number of periods,
- * which covers the latency requironment.
- */
- dac33->nsample = period_size *
- ((dac33->alarm_threshold / period_size) +
- (dac33->alarm_threshold % period_size ?
- 1 : 0));
- else if (period_size > nsample_limit)
- dac33->nsample = nsample_limit;
- else
- dac33->nsample = period_size;
- } else {
- /* nSample time shall not be shorter than i2c latency */
- dac33->nsample_min = dac33->alarm_threshold;
+ if (period_size <= dac33->alarm_threshold)
/*
- * nSample should not be bigger than alsa buffer minus
- * size of one period to avoid overruns
+ * Configure nSamaple to number of periods,
+ * which covers the latency requironment.
*/
- dac33->nsample_max = substream->runtime->buffer_size -
- period_size;
-
- if (dac33->nsample_max > nsample_limit)
- dac33->nsample_max = nsample_limit;
-
- /* Correct the nSample if it is outside of the ranges */
- if (dac33->nsample < dac33->nsample_min)
- dac33->nsample = dac33->nsample_min;
- if (dac33->nsample > dac33->nsample_max)
- dac33->nsample = dac33->nsample_max;
- }
+ dac33->nsample = period_size *
+ ((dac33->alarm_threshold / period_size) +
+ (dac33->alarm_threshold % period_size ?
+ 1 : 0));
+ else if (period_size > nsample_limit)
+ dac33->nsample = nsample_limit;
+ else
+ dac33->nsample = period_size;
dac33->mode1_us_burst = SAMPLES_TO_US(dac33->burst_rate,
dac33->nsample);
@@ -1152,16 +1046,13 @@ static void dac33_calculate_times(struct snd_pcm_substream *substream)
dac33->t_stamp2 = 0;
break;
case DAC33_FIFO_MODE7:
- if (dac33->auto_fifo_config) {
- dac33->uthr = UTHR_FROM_PERIOD_SIZE(
- period_size,
- rate,
- dac33->burst_rate) + 9;
- if (dac33->uthr > MODE7_UTHR)
- dac33->uthr = MODE7_UTHR;
- if (dac33->uthr < (MODE7_LTHR + 10))
- dac33->uthr = (MODE7_LTHR + 10);
- }
+ dac33->uthr = UTHR_FROM_PERIOD_SIZE(period_size, rate,
+ dac33->burst_rate) + 9;
+ if (dac33->uthr > MODE7_UTHR)
+ dac33->uthr = MODE7_UTHR;
+ if (dac33->uthr < (MODE7_LTHR + 10))
+ dac33->uthr = (MODE7_LTHR + 10);
+
dac33->mode7_us_to_lthr =
SAMPLES_TO_US(substream->runtime->rate,
dac33->uthr - MODE7_LTHR + 1);
@@ -1486,14 +1377,10 @@ static int dac33_soc_probe(struct snd_soc_codec *codec)
snd_soc_add_controls(codec, dac33_snd_controls,
ARRAY_SIZE(dac33_snd_controls));
/* Only add the FIFO controls, if we have valid IRQ number */
- if (dac33->irq >= 0) {
+ if (dac33->irq >= 0)
snd_soc_add_controls(codec, dac33_mode_snd_controls,
ARRAY_SIZE(dac33_mode_snd_controls));
- /* FIFO usage controls only, if autoio config is not selected */
- if (!dac33->auto_fifo_config)
- snd_soc_add_controls(codec, dac33_fifo_snd_controls,
- ARRAY_SIZE(dac33_fifo_snd_controls));
- }
+
dac33_add_widgets(codec);
err_power:
@@ -1593,14 +1480,10 @@ static int __devinit dac33_i2c_probe(struct i2c_client *client,
/* Pre calculate the burst rate */
dac33->burst_rate = BURST_BASEFREQ_HZ / dac33->burst_bclkdiv / 32;
dac33->keep_bclk = pdata->keep_bclk;
- dac33->auto_fifo_config = pdata->auto_fifo_config;
dac33->mode1_latency = pdata->mode1_latency;
if (!dac33->mode1_latency)
dac33->mode1_latency = 10000; /* 10ms */
dac33->irq = client->irq;
- dac33->nsample = NSAMPLE_MAX;
- dac33->nsample_max = NSAMPLE_MAX;
- dac33->uthr = MODE7_UTHR;
/* Disable FIFO use by default */
dac33->fifo_mode = DAC33_FIFO_BYPASS;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-11 18:43:24 +0000