ALSA: oxygen: X-Meridian: add S/PDIF source selection
Add a mixer control to select between the on-board and extension board
S/PDIF inputs for the X-Meridian (2G).
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/oxygen/oxygen.c b/sound/pci/oxygen/oxygen.c
index 45427d8..22cbf3e 100644
--- a/sound/pci/oxygen/oxygen.c
+++ b/sound/pci/oxygen/oxygen.c
@@ -28,7 +28,13 @@
*
* GPIO 0 -> DFS0 of AK5385
* GPIO 1 -> DFS1 of AK5385
- * GPIO 8 -> enable headphone amplifier on HT-Omega models
+ *
+ * X-Meridian models:
+ * GPIO 4 -> enable extension S/PDIF input
+ * GPIO 6 -> enable on-board S/PDIF input
+ *
+ * Claro models:
+ * GPIO 8 -> enable headphone amplifier
*
* CM9780:
*
@@ -124,6 +130,10 @@
#define GPIO_AK5385_DFS_DOUBLE 0x0001
#define GPIO_AK5385_DFS_QUAD 0x0002
+#define GPIO_MERIDIAN_DIG_MASK 0x0050
+#define GPIO_MERIDIAN_DIG_EXT 0x0010
+#define GPIO_MERIDIAN_DIG_BOARD 0x0040
+
#define GPIO_CLARO_HP 0x0100
struct generic_data {
@@ -238,6 +248,10 @@
static void meridian_init(struct oxygen *chip)
{
+ oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL,
+ GPIO_MERIDIAN_DIG_MASK);
+ oxygen_write16_masked(chip, OXYGEN_GPIO_DATA,
+ GPIO_MERIDIAN_DIG_BOARD, GPIO_MERIDIAN_DIG_MASK);
ak4396_init(chip);
ak5385_init(chip);
}
@@ -506,6 +520,51 @@
.put = hpf_put,
};
+static int meridian_dig_source_info(struct snd_kcontrol *ctl, struct snd_ctl_elem_info *info)
+{
+ static const char *const names[2] = { "On-board", "Extension" };
+
+ return snd_ctl_enum_info(info, 1, 2, names);
+}
+
+static int meridian_dig_source_get(struct snd_kcontrol *ctl, struct snd_ctl_elem_value *value)
+{
+ struct oxygen *chip = ctl->private_data;
+
+ value->value.enumerated.item[0] =
+ !!(oxygen_read16(chip, OXYGEN_GPIO_DATA) &
+ GPIO_MERIDIAN_DIG_EXT);
+ return 0;
+}
+
+static int meridian_dig_source_put(struct snd_kcontrol *ctl, struct snd_ctl_elem_value *value)
+{
+ struct oxygen *chip = ctl->private_data;
+ u16 old_reg, new_reg;
+ int changed;
+
+ mutex_lock(&chip->mutex);
+ old_reg = oxygen_read16(chip, OXYGEN_GPIO_DATA);
+ new_reg = old_reg & ~GPIO_MERIDIAN_DIG_MASK;
+ if (value->value.enumerated.item[0] == 0)
+ new_reg |= GPIO_MERIDIAN_DIG_BOARD;
+ else
+ new_reg |= GPIO_MERIDIAN_DIG_EXT;
+ changed = new_reg != old_reg;
+ if (changed)
+ oxygen_write16(chip, OXYGEN_GPIO_DATA, new_reg);
+ mutex_unlock(&chip->mutex);
+ return changed;
+}
+
+static const struct snd_kcontrol_new meridian_dig_source_control = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "IEC958 Source Capture Enum",
+ .info = meridian_dig_source_info,
+ .get = meridian_dig_source_get,
+ .put = meridian_dig_source_put,
+};
+
static int generic_mixer_init(struct oxygen *chip)
{
return snd_ctl_add(chip->card, snd_ctl_new1(&rolloff_control, chip));
@@ -524,6 +583,20 @@
return 0;
}
+static int meridian_mixer_init(struct oxygen *chip)
+{
+ int err;
+
+ err = generic_mixer_init(chip);
+ if (err < 0)
+ return err;
+ err = snd_ctl_add(chip->card,
+ snd_ctl_new1(&meridian_dig_source_control, chip));
+ if (err < 0)
+ return err;
+ return 0;
+}
+
static void dump_ak4396_registers(struct oxygen *chip,
struct snd_info_buffer *buffer)
{
@@ -600,7 +673,7 @@
switch (id->driver_data) {
case MODEL_MERIDIAN:
chip->model.init = meridian_init;
- chip->model.mixer_init = generic_mixer_init;
+ chip->model.mixer_init = meridian_mixer_init;
chip->model.resume = meridian_resume;
chip->model.set_adc_params = set_ak5385_params;
chip->model.dump_registers = dump_ak4396_registers;