sound: oxygen: add digital filter control
Add a control to select between sharp and slow roll-of filter responses
of the DACs.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/oxygen/xonar_pcm179x.c b/sound/pci/oxygen/xonar_pcm179x.c
index 7f153fb..ba18fb5 100644
--- a/sound/pci/oxygen/xonar_pcm179x.c
+++ b/sound/pci/oxygen/xonar_pcm179x.c
@@ -265,7 +265,8 @@
+ gain_offset);
pcm1796_write(chip, i, 17, chip->dac_volume[i * 2 + 1]
+ gain_offset);
- pcm1796_write(chip, i, 19, PCM1796_FLT_SHARP | PCM1796_ATS_1);
+ pcm1796_write(chip, i, 19,
+ data->pcm1796_regs[0][19 - PCM1796_REG_BASE]);
pcm1796_write(chip, i, 20,
data->pcm1796_regs[0][20 - PCM1796_REG_BASE]);
pcm1796_write(chip, i, 21, 0);
@@ -278,6 +279,8 @@
data->pcm1796_regs[0][18 - PCM1796_REG_BASE] = PCM1796_MUTE |
PCM1796_DMF_DISABLED | PCM1796_FMT_24_LJUST | PCM1796_ATLD;
+ data->pcm1796_regs[0][19 - PCM1796_REG_BASE] =
+ PCM1796_FLT_SHARP | PCM1796_ATS_1;
data->pcm1796_regs[0][20 - PCM1796_REG_BASE] = PCM1796_OS_64;
pcm1796_registers_init(chip);
data->current_rate = 48000;
@@ -642,6 +645,67 @@
.private_value = GPIO_D2_ALT,
};
+static int rolloff_info(struct snd_kcontrol *ctl,
+ struct snd_ctl_elem_info *info)
+{
+ static const char *const names[2] = {
+ "Sharp Roll-off", "Slow Roll-off"
+ };
+
+ info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+ info->count = 1;
+ info->value.enumerated.items = 2;
+ if (info->value.enumerated.item >= 2)
+ info->value.enumerated.item = 1;
+ strcpy(info->value.enumerated.name, names[info->value.enumerated.item]);
+ return 0;
+}
+
+static int rolloff_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.enumerated.item[0] =
+ (data->pcm1796_regs[0][19 - PCM1796_REG_BASE] &
+ PCM1796_FLT_MASK) != PCM1796_FLT_SHARP;
+ return 0;
+}
+
+static int rolloff_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][19 - PCM1796_REG_BASE];
+ reg &= ~PCM1796_FLT_MASK;
+ if (!value->value.enumerated.item[0])
+ reg |= PCM1796_FLT_SHARP;
+ else
+ reg |= PCM1796_FLT_SLOW;
+ changed = reg != data->pcm1796_regs[0][19 - PCM1796_REG_BASE];
+ if (changed) {
+ for (i = 0; i < data->dacs; ++i)
+ pcm1796_write(chip, i, 19, reg);
+ }
+ mutex_unlock(&chip->mutex);
+ return changed;
+}
+
+static const struct snd_kcontrol_new rolloff_control = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "DAC Filter Playback Enum",
+ .info = rolloff_info,
+ .get = rolloff_get,
+ .put = rolloff_put,
+};
+
static int os_128_info(struct snd_kcontrol *ctl, struct snd_ctl_elem_info *info)
{
static const char *const names[2] = { "64x", "128x" };
@@ -858,11 +922,11 @@
return 0;
}
-static int xonar_d2_mixer_init(struct oxygen *chip)
+static int add_pcm1796_controls(struct oxygen *chip)
{
int err;
- err = snd_ctl_add(chip->card, snd_ctl_new1(&alt_switch, chip));
+ err = snd_ctl_add(chip->card, snd_ctl_new1(&rolloff_control, chip));
if (err < 0)
return err;
err = snd_ctl_add(chip->card, snd_ctl_new1(&os_128_control, chip));
@@ -871,9 +935,22 @@
return 0;
}
+static int xonar_d2_mixer_init(struct oxygen *chip)
+{
+ int err;
+
+ err = snd_ctl_add(chip->card, snd_ctl_new1(&alt_switch, chip));
+ if (err < 0)
+ return err;
+ err = add_pcm1796_controls(chip);
+ if (err < 0)
+ return err;
+ return 0;
+}
+
static int xonar_hdav_mixer_init(struct oxygen *chip)
{
- return snd_ctl_add(chip->card, snd_ctl_new1(&os_128_control, chip));
+ return add_pcm1796_controls(chip);
}
static int xonar_st_mixer_init(struct oxygen *chip)
@@ -887,7 +964,7 @@
if (err < 0)
return err;
}
- err = snd_ctl_add(chip->card, snd_ctl_new1(&os_128_control, chip));
+ err = add_pcm1796_controls(chip);
if (err < 0)
return err;
return 0;