[ALSA] ymfpci: add S/PDIF-in > S/PDIF-out loop
Modules: YMFPCI driver
This patch adds a new mixer control called 'IEC958 Loop' which makes
it possible to loop digital signals from S/PDIF-in to S/PDIF-out.
Signed-off-by: Glen Masgai <mimosius@gmx.de>
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c
index 27fa523..2e671ee 100644
--- a/sound/pci/ymfpci/ymfpci_main.c
+++ b/sound/pci/ymfpci/ymfpci_main.c
@@ -1421,15 +1421,18 @@
* Mixer controls
*/
-#define YMFPCI_SINGLE(xname, xindex, reg) \
+#define YMFPCI_SINGLE(xname, xindex, reg, shift) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
.info = snd_ymfpci_info_single, \
.get = snd_ymfpci_get_single, .put = snd_ymfpci_put_single, \
- .private_value = reg }
+ .private_value = ((reg) | ((shift) << 16)) }
-static int snd_ymfpci_info_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
+static int snd_ymfpci_info_single(snd_kcontrol_t *kcontrol,
+ snd_ctl_elem_info_t *uinfo)
{
- switch (kcontrol->private_value) {
+ int reg = kcontrol->private_value & 0xffff;
+
+ switch (reg) {
case YDSXGR_SPDIFOUTCTRL: break;
case YDSXGR_SPDIFINCTRL: break;
default: return -EINVAL;
@@ -1441,30 +1444,35 @@
return 0;
}
-static int snd_ymfpci_get_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+static int snd_ymfpci_get_single(snd_kcontrol_t *kcontrol,
+ snd_ctl_elem_value_t *ucontrol)
{
ymfpci_t *chip = snd_kcontrol_chip(kcontrol);
- int reg = kcontrol->private_value;
- unsigned int shift = 0, mask = 1;
+ int reg = kcontrol->private_value & 0xffff;
+ unsigned int shift = (kcontrol->private_value >> 16) & 0xff;
+ unsigned int mask = 1;
- switch (kcontrol->private_value) {
+ switch (reg) {
case YDSXGR_SPDIFOUTCTRL: break;
case YDSXGR_SPDIFINCTRL: break;
default: return -EINVAL;
}
- ucontrol->value.integer.value[0] = (snd_ymfpci_readl(chip, reg) >> shift) & mask;
+ ucontrol->value.integer.value[0] =
+ (snd_ymfpci_readl(chip, reg) >> shift) & mask;
return 0;
}
-static int snd_ymfpci_put_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+static int snd_ymfpci_put_single(snd_kcontrol_t *kcontrol,
+ snd_ctl_elem_value_t *ucontrol)
{
ymfpci_t *chip = snd_kcontrol_chip(kcontrol);
- int reg = kcontrol->private_value;
- unsigned int shift = 0, mask = 1;
+ int reg = kcontrol->private_value & 0xffff;
+ unsigned int shift = (kcontrol->private_value >> 16) & 0xff;
+ unsigned int mask = 1;
int change;
unsigned int val, oval;
- switch (kcontrol->private_value) {
+ switch (reg) {
case YDSXGR_SPDIFOUTCTRL: break;
case YDSXGR_SPDIFINCTRL: break;
default: return -EINVAL;
@@ -1583,8 +1591,9 @@
YMFPCI_DOUBLE(SNDRV_CTL_NAME_IEC958("", CAPTURE,VOLUME), 0, YDSXGR_ZVLOOPVOL),
YMFPCI_DOUBLE(SNDRV_CTL_NAME_IEC958("AC97 ",PLAYBACK,VOLUME), 1, YDSXGR_SPDIFOUTVOL),
YMFPCI_DOUBLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,VOLUME), 1, YDSXGR_SPDIFLOOPVOL),
-YMFPCI_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), 0, YDSXGR_SPDIFOUTCTRL),
-YMFPCI_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, YDSXGR_SPDIFINCTRL),
+YMFPCI_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), 0, YDSXGR_SPDIFOUTCTRL, 0),
+YMFPCI_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, YDSXGR_SPDIFINCTRL, 0),
+YMFPCI_SINGLE(SNDRV_CTL_NAME_IEC958("Loop",NONE,NONE), 0, YDSXGR_SPDIFINCTRL, 4),
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "4ch Duplication",