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-rw-r--r--Alsa-afb/Alsa-AddCtl.c31
1 files changed, 27 insertions, 4 deletions
diff --git a/Alsa-afb/Alsa-AddCtl.c b/Alsa-afb/Alsa-AddCtl.c
index 44de782..b9045f5 100644
--- a/Alsa-afb/Alsa-AddCtl.c
+++ b/Alsa-afb/Alsa-AddCtl.c
@@ -30,6 +30,29 @@
// Performs like a toggle switch for attenuation, because they're bool (ref:user-ctl-element-set.c)
+#ifndef SNDRV_CTL_TLVD_DECLARE_DB_MINMAX
+// taken from alsa-lib-1.1.3:include/sound/tlv.h
+
+#define SNDRV_CTL_TLVD_LENGTH(...) \
+ ((unsigned int)sizeof((const unsigned int[]) { __VA_ARGS__ }))
+
+#define SNDRV_CTL_TLVD_ITEM(type, ...) \
+ (type), SNDRV_CTL_TLVD_LENGTH(__VA_ARGS__), __VA_ARGS__
+
+#define SNDRV_CTL_TLVT_DB_MINMAX 4
+
+#define SNDRV_CTL_TLVD_DB_MINMAX_ITEM(min_dB, max_dB) \
+ SNDRV_CTL_TLVD_ITEM(SNDRV_CTL_TLVT_DB_MINMAX, (min_dB), (max_dB))
+
+#define SNDRV_CTL_TLVD_DECLARE_DB_MINMAX(name, min_dB, max_dB) \
+ unsigned int name[] = { \
+ SNDRV_CTL_TLVD_DB_MINMAX_ITEM(min_dB, max_dB) \
+ }
+
+#define SNDRV_CTL_TLVD_DB_SCALE_MASK 0xffff
+#define SNDRV_CTL_TLVD_DB_SCALE_MUTE 0x10000
+
+#endif
static const unsigned int *allocate_bool_fake_tlv(void) {
static const SNDRV_CTL_TLVD_DECLARE_DB_MINMAX(range, -10000, 0);
unsigned int *tlv = malloc(sizeof (range));
@@ -61,12 +84,12 @@ static const unsigned int *allocate_int_linear_tlv(int max, int min) {
}
STATIC json_object * addOneSndCtl(afb_req request, snd_ctl_t *ctlDev, json_object *ctlJ, halQueryMode queryMode) {
- int err, done, ctlNumid, ctlValue, shouldCreate;
+ int err, done, ctlNumid, ctlValue=0, shouldCreate;
json_object *tmpJ;
const char *ctlName;
ctlRequestT ctlRequest;
- int ctlMax, ctlMin, ctlStep, ctlCount, ctlSubDev, ctlSndDev;
- snd_ctl_elem_type_t ctlType;
+ int ctlMax=100, ctlMin=0, ctlStep, ctlCount, ctlSubDev=0, ctlSndDev=0;
+ snd_ctl_elem_type_t ctlType=SND_CTL_ELEM_TYPE_NONE;
snd_ctl_elem_info_t *elemInfo;
snd_ctl_elem_id_t *elemId;
snd_ctl_elem_value_t *elemValue;
@@ -369,4 +392,4 @@ PUBLIC void alsaAddCustomCtls(afb_req request) {
OnErrorExit:
if (ctlDev) snd_ctl_close(ctlDev);
return;
-} \ No newline at end of file
+}