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authorTom Yan <tom.ty89@gmail.com>2018-12-20 07:45:51 +0800
committerTakashi Iwai <tiwai@suse.de>2019-01-07 11:54:54 +0100
commit748b6ec359b02e962259182fd9576cb1b0851440 (patch)
tree85abfc1c520298f7f7abfaae6f5157be8bdf320e /sound/pci
parentc2a7c55a04065c3b0c32d23b099db7ea1dbf6250 (diff)
ALSA: virtuoso: add de-emphasis control
Add control for the de-emphasis filter in the PCM179x DACs Signed-off-by: Tom Yan <tom.ty89@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
-rw-r--r--sound/pci/oxygen/pcm1796.h1
-rw-r--r--sound/pci/oxygen/xonar_pcm179x.c71
2 files changed, 69 insertions, 3 deletions
diff --git a/sound/pci/oxygen/pcm1796.h b/sound/pci/oxygen/pcm1796.h
index 34d07dd2d22e..d5dcb09e44cd 100644
--- a/sound/pci/oxygen/pcm1796.h
+++ b/sound/pci/oxygen/pcm1796.h
@@ -10,7 +10,6 @@
#define PCM1796_MUTE 0x01
#define PCM1796_DME 0x02
#define PCM1796_DMF_MASK 0x0c
-#define PCM1796_DMF_DISABLED 0x00
#define PCM1796_DMF_48 0x04
#define PCM1796_DMF_441 0x08
#define PCM1796_DMF_32 0x0c
diff --git a/sound/pci/oxygen/xonar_pcm179x.c b/sound/pci/oxygen/xonar_pcm179x.c
index 24109d37ca09..a1c6b98b191e 100644
--- a/sound/pci/oxygen/xonar_pcm179x.c
+++ b/sound/pci/oxygen/xonar_pcm179x.c
@@ -331,7 +331,7 @@ static void pcm1796_init(struct oxygen *chip)
struct xonar_pcm179x *data = chip->model_data;
data->pcm1796_regs[0][18 - PCM1796_REG_BASE] =
- PCM1796_DMF_DISABLED | PCM1796_FMT_24_I2S | PCM1796_ATLD;
+ PCM1796_FMT_24_I2S | PCM1796_ATLD;
if (!data->broken_i2c)
data->pcm1796_regs[0][18 - PCM1796_REG_BASE] |= PCM1796_MUTE;
data->pcm1796_regs[0][19 - PCM1796_REG_BASE] =
@@ -621,6 +621,23 @@ static void update_pcm1796_oversampling(struct oxygen *chip)
pcm1796_write_cached(chip, i, 20, reg);
}
+static void update_pcm1796_deemph(struct oxygen *chip)
+{
+ struct xonar_pcm179x *data = chip->model_data;
+ unsigned int i;
+ u8 reg;
+
+ reg = data->pcm1796_regs[0][18 - PCM1796_REG_BASE] & ~PCM1796_DMF_MASK;
+ if (data->current_rate == 48000)
+ reg |= PCM1796_DMF_48;
+ else if (data->current_rate == 44100)
+ reg |= PCM1796_DMF_441;
+ else if (data->current_rate == 32000)
+ reg |= PCM1796_DMF_32;
+ for (i = 0; i < data->dacs; ++i)
+ pcm1796_write_cached(chip, i, 18, reg);
+}
+
static void set_pcm1796_params(struct oxygen *chip,
struct snd_pcm_hw_params *params)
{
@@ -629,6 +646,7 @@ static void set_pcm1796_params(struct oxygen *chip,
msleep(1);
data->current_rate = params_rate(params);
update_pcm1796_oversampling(chip);
+ update_pcm1796_deemph(chip);
}
static void update_pcm1796_volume(struct oxygen *chip)
@@ -653,9 +671,11 @@ static void update_pcm1796_mute(struct oxygen *chip)
unsigned int i;
u8 value;
- value = PCM1796_DMF_DISABLED | PCM1796_FMT_24_I2S | PCM1796_ATLD;
+ value = data->pcm1796_regs[0][18 - PCM1796_REG_BASE];
if (chip->dac_mute)
value |= PCM1796_MUTE;
+ else
+ value &= ~PCM1796_MUTE;
for (i = 0; i < data->dacs; ++i)
pcm1796_write_cached(chip, i, 18, value);
}
@@ -777,6 +797,49 @@ static const struct snd_kcontrol_new rolloff_control = {
.put = rolloff_put,
};
+static int deemph_get(struct snd_kcontrol *ctl,
+ struct snd_ctl_elem_value *value)
+{
+ struct oxygen *chip = ctl->private_data;
+ struct xonar_pcm179x *data = chip->model_data;
+
+ value->value.integer.value[0] =
+ !!(data->pcm1796_regs[0][18 - PCM1796_REG_BASE] & PCM1796_DME);
+ return 0;
+}
+
+static int deemph_put(struct snd_kcontrol *ctl,
+ struct snd_ctl_elem_value *value)
+{
+ struct oxygen *chip = ctl->private_data;
+ struct xonar_pcm179x *data = chip->model_data;
+ unsigned int i;
+ int changed;
+ u8 reg;
+
+ mutex_lock(&chip->mutex);
+ reg = data->pcm1796_regs[0][18 - PCM1796_REG_BASE];
+ if (!value->value.integer.value[0])
+ reg &= ~PCM1796_DME;
+ else
+ reg |= PCM1796_DME;
+ changed = reg != data->pcm1796_regs[0][18 - PCM1796_REG_BASE];
+ if (changed) {
+ for (i = 0; i < data->dacs; ++i)
+ pcm1796_write(chip, i, 18, reg);
+ }
+ mutex_unlock(&chip->mutex);
+ return changed;
+}
+
+static const struct snd_kcontrol_new deemph_control = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "De-emphasis Playback Switch",
+ .info = snd_ctl_boolean_mono_info,
+ .get = deemph_get,
+ .put = deemph_put,
+};
+
static const struct snd_kcontrol_new hdav_hdmi_control = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "HDMI Playback Switch",
@@ -1011,6 +1074,10 @@ static int add_pcm1796_controls(struct oxygen *chip)
snd_ctl_new1(&rolloff_control, chip));
if (err < 0)
return err;
+ err = snd_ctl_add(chip->card,
+ snd_ctl_new1(&deemph_control, chip));
+ if (err < 0)
+ return err;
}
return 0;
}