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Add enum control support to sget/sset

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Added the enum control support to amixer sget/sset.
This commit is contained in:
Takashi Iwai 2005-06-15 14:55:37 +00:00
parent 74dca8fd02
commit 210e946410
1 changed files with 63 additions and 2 deletions
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65
amixer/amixer.c
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@ -564,7 +564,26 @@ static int show_selem(snd_mixer_t *handle, snd_mixer_selem_id_t *id, const char
printf(" cswitch-exclusive");
}
}
if (snd_mixer_selem_is_enumerated(elem)) {
printf(" enum");
}
printf("\n");
if (snd_mixer_selem_is_enumerated(elem)) {
int i, items, idx;
char itemname[40];
items = snd_mixer_selem_get_enum_items(elem);
printf(" Items:");
for (i = 0; i < items; i++) {
snd_mixer_selem_get_enum_item_name(elem, i, sizeof(itemname) - 1, itemname);
printf(" '%s'", itemname);
}
printf("\n");
for (i = 0; !snd_mixer_selem_get_enum_item(elem, i, &idx); i++) {
snd_mixer_selem_get_enum_item_name(elem, idx, sizeof(itemname) - 1, itemname);
printf(" Item%d: '%s'\n", i, itemname);
}
return 0; /* no more thing to do */
}
if (snd_mixer_selem_has_capture_switch_exclusive(elem))
printf("%sCapture exclusive group: %i\n", space,
snd_mixer_selem_get_capture_group(elem));
@ -800,7 +819,7 @@ static int selems(int level)
static int parse_control_id(const char *str, snd_ctl_elem_id_t *id)
{
int c, size;
int c, size, numid;
char *ptr;
while (*str == ' ' || *str == '\t')
@ -811,6 +830,11 @@ static int parse_control_id(const char *str, snd_ctl_elem_id_t *id)
while (*str) {
if (!strncasecmp(str, "numid=", 6)) {
str += 6;
numid = atoi(str);
if (numid <= 0) {
fprintf(stderr, "amixer: Invalid numid %d\n", numid);
return -EINVAL;
}
snd_ctl_elem_id_set_numid(id, atoi(str));
while (isdigit(*str))
str++;
@ -972,7 +996,7 @@ static int cset(int argc, char *argv[], int roflag)
}
snd_ctl_elem_info_set_id(info, id);
if ((err = snd_ctl_elem_info(handle, info)) < 0) {
error("Control %s cinfo error: %s\n", card, snd_strerror(err));
error("Cannot find the given element from control %s\n", card);
return err;
}
snd_ctl_elem_info_get_id(info, id); /* FIXME: Remove it when hctl find works ok !!! */
@ -1113,6 +1137,31 @@ static unsigned int dir_mask(char **arg, unsigned int def)
return def;
}
static int get_enum_item_index(snd_mixer_elem_t *elem, char **ptrp)
{
char *ptr = *ptrp;
int items, i, len;
char name[40];
items = snd_mixer_selem_get_enum_items(elem);
if (items <= 0)
return -1;
for (i = 0; i < items; i++) {
if (snd_mixer_selem_get_enum_item_name(elem, i, sizeof(name)-1, name) < 0)
continue;
len = strlen(name);
if (! strncmp(name, ptr, len)) {
if (! ptr[len] || ptr[len] == ',' || ptr[len] == '\n') {
ptr += len;
*ptrp = ptr;
return i;
}
}
}
return -1;
}
static int sset(unsigned int argc, char *argv[], int roflag)
{
int err;
@ -1186,6 +1235,18 @@ static int sset(unsigned int argc, char *argv[], int roflag)
if (!(channels & (1 << chn)))
continue;
/* enum control */
if (snd_mixer_selem_is_enumerated(elem)) {
int idx = get_enum_item_index(elem, &ptr);
if (idx < 0)
break;
else
snd_mixer_selem_set_enum_item(elem, chn, idx);
if (!multi)
ptr = optr;
continue;
}
if ((dir & 1) && snd_mixer_selem_has_playback_channel(elem, chn)) {
sptr = ptr;
if (!strncmp(ptr, "mute", 4) && snd_mixer_selem_has_playback_switch(elem)) {