aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--sound/pci/hda/patch_realtek.c68
1 files changed, 67 insertions, 1 deletions
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index c8b0ec81437..219ddf0b8d4 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -395,6 +395,60 @@ static int alc_gpio_data_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_
.private_value = nid | (mask<<16) }
#endif /* CONFIG_SND_DEBUG */
+/* A switch control to allow the enabling of the digital IO pins on the
+ * ALC260. This is incredibly simplistic; the intention of this control is
+ * to provide something in the test model allowing digital outputs to be
+ * identified if present. If models are found which can utilise these
+ * outputs a more complete mixer control can be devised for those models if
+ * necessary.
+ */
+#ifdef CONFIG_SND_DEBUG
+static int alc_spdif_ctrl_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 1;
+ return 0;
+}
+static int alc_spdif_ctrl_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+ struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+ hda_nid_t nid = kcontrol->private_value & 0xffff;
+ unsigned char mask = (kcontrol->private_value >> 16) & 0xff;
+ long *valp = ucontrol->value.integer.value;
+ unsigned int val = snd_hda_codec_read(codec,nid,0,AC_VERB_GET_DIGI_CONVERT,0x00);
+
+ *valp = (val & mask) != 0;
+ return 0;
+}
+static int alc_spdif_ctrl_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+ signed int change;
+ struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+ hda_nid_t nid = kcontrol->private_value & 0xffff;
+ unsigned char mask = (kcontrol->private_value >> 16) & 0xff;
+ long val = *ucontrol->value.integer.value;
+ unsigned int ctrl_data = snd_hda_codec_read(codec,nid,0,AC_VERB_GET_DIGI_CONVERT,0x00);
+
+ /* Set/unset the masked control bit(s) as needed */
+ change = (val==0?0:mask) != (ctrl_data & mask);
+ if (val==0)
+ ctrl_data &= ~mask;
+ else
+ ctrl_data |= mask;
+ snd_hda_codec_write(codec,nid,0,AC_VERB_SET_DIGI_CONVERT_1,ctrl_data);
+
+ return change;
+}
+#define ALC_SPDIF_CTRL_SWITCH(xname, nid, mask) \
+ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = 0, \
+ .info = alc_spdif_ctrl_info, \
+ .get = alc_spdif_ctrl_get, \
+ .put = alc_spdif_ctrl_put, \
+ .private_value = nid | (mask<<16) }
+#endif /* CONFIG_SND_DEBUG */
+
/*
* set up from the preset table
*/
@@ -3048,6 +3102,13 @@ static struct snd_kcontrol_new alc260_test_mixer[] = {
ALC_GPIO_DATA_SWITCH("GPIO pin 2", 0x01, 0x04),
ALC_GPIO_DATA_SWITCH("GPIO pin 3", 0x01, 0x08),
+ /* Switches to allow the digital IO pins to be enabled. The datasheet
+ * is ambigious as to which NID is which; testing on laptops which
+ * make this output available should provide clarification.
+ */
+ ALC_SPDIF_CTRL_SWITCH("SPDIF Playback Switch", 0x03, 0x01),
+ ALC_SPDIF_CTRL_SWITCH("SPDIF Capture Switch", 0x06, 0x01),
+
{ } /* end */
};
static struct hda_verb alc260_test_init_verbs[] = {
@@ -3064,7 +3125,12 @@ static struct hda_verb alc260_test_init_verbs[] = {
{0x13, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT},
{0x12, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT},
- /* Disable digital (SPDIF) pins for now */
+ /* Disable digital (SPDIF) pins initially, but users can enable
+ * them via a mixer switch. In the case of SPDIF-out, this initverb
+ * payload also sets the generation to 0, output to be in "consumer"
+ * PCM format, copyright asserted, no pre-emphasis and no validity
+ * control.
+ */
{0x03, AC_VERB_SET_DIGI_CONVERT_1, 0},
{0x06, AC_VERB_SET_DIGI_CONVERT_1, 0},