/* mixer helper function */
static int mixer_enum_string_to_value(struct mixer_ctl *ctl, const char *string)
{
unsigned int i;
/* Search the enum strings for a particular one */
for (i = 0; i < mixer_ctl_get_num_enums(ctl); i++) {
if (strcmp(mixer_ctl_get_enum_string(ctl, i), string) == 0)
break;
}
return i;
}
static void tinymix_print_enum(struct mixer_ctl *ctl)
{
unsigned int num_enums;
unsigned int i;
unsigned int value;
const char *string;
num_enums = mixer_ctl_get_num_enums(ctl);
value = mixer_ctl_get_value(ctl, 0);
for (i = 0; i < num_enums; i++) {
string = mixer_ctl_get_enum_string(ctl, i);
printf("%s%s, ", value == i ? "> " : "", string);
}
}
static void tinymix_print_enum(struct mixer_ctl *ctl, int print_all)
{
unsigned int num_enums;
char buffer[256];
unsigned int i;
num_enums = mixer_ctl_get_num_enums(ctl);
for (i = 0; i < num_enums; i++) {
mixer_ctl_get_enum_string(ctl, i, buffer, sizeof(buffer));
if (print_all)
printf("\t%s%s", mixer_ctl_get_value(ctl, 0) == (int)i ? ">" : "",
buffer);
else if (mixer_ctl_get_value(ctl, 0) == (int)i)
printf(" %-s", buffer);
}
}
static void tinymix_print_enum(struct mixer_ctl *ctl, int print_all)
{
unsigned int num_enums;
unsigned int i;
const char *string;
num_enums = mixer_ctl_get_num_enums(ctl);
for (i = 0; i < num_enums; i++) {
string = mixer_ctl_get_enum_string(ctl, i);
if (print_all)
printf("\t%s%s", mixer_ctl_get_value(ctl, 0) == (int)i ? ">" : "",
string);
else if (mixer_ctl_get_value(ctl, 0) == (int)i)
printf(" %-s", string);
}
}
int mixer_cache_populate(struct audio_tool_mixer_cache *cache, struct mixer *mixer)
{
struct mixer_ctl *ctl;
struct audio_tool_mixer_control_info *cur;
const char* name;
size_t count, n, v;
int tmp;
if (!cache)
return EINVAL;
if (!mixer)
return EINVAL;
if (cache->ctrls)
free(cache->ctrls);
count = mixer_get_num_ctls(mixer);
cache->count = count;
if (count) {
cache->ctrls = calloc(count, sizeof(struct audio_tool_mixer_control_info));
if (! cache->ctrls)
return -ENOMEM;
}
for (n = 0, cur = cache->ctrls ; n < count ; ++n, ++cur) {
ctl = mixer_get_ctl(mixer, n);
if (!ctl)
return ENODEV;
name = mixer_ctl_get_name(ctl);
if (!name)
return ENODEV;
cur->id = n;
cur->type = mixer_ctl_get_type(ctl);
strcpy(cur->name, name);
cur->num_values = mixer_ctl_get_num_values(ctl);
if (cur->num_values > MAX_NUM_VALUES)
cur->num_values = MAX_NUM_VALUES;
for (v = 0 ; v < cur->num_values ; ++v) {
switch (cur->type) {
case MIXER_CTL_TYPE_BOOL:
case MIXER_CTL_TYPE_INT:
cur->value.integer[v] = mixer_ctl_get_value(ctl, v);
break;
case MIXER_CTL_TYPE_ENUM:
tmp = mixer_ctl_get_value(ctl, v);
name = mixer_ctl_get_enum_string(ctl, tmp);
// null value names were causing seg fault here
if (name)
strcpy(cur->value.enumerated[v], name);
else
printf("Skipping ENUM due to null setting for %s\n", cur->name);
break;
case MIXER_CTL_TYPE_BYTE:
cur->value.byte[v] = mixer_ctl_get_value(ctl, v);
break;
case MIXER_CTL_TYPE_INT64:
cur->value.integer64[v] = mixer_ctl_get_value(ctl, v);
break;
default:
(void)0;
}
}
}
return 0;
}
