/* Common operations. */
static int add_elem_set(struct elem_set_trial *trial)
{
snd_ctl_elem_info_t *info;
char name[64] = {0};
int err;
snprintf(name, 64, "userspace-control-element-%s",
snd_ctl_elem_type_name(trial->type));
snd_ctl_elem_info_alloca(&info);
snd_ctl_elem_info_set_interface(info, SND_CTL_ELEM_IFACE_MIXER);
snd_ctl_elem_info_set_name(info, name);
snd_ctl_elem_info_set_dimension(info, trial->dimension);
err = trial->add_elem_set(trial, info);
if (err >= 0)
snd_ctl_elem_info_get_id(info, trial->id);
return err;
}
void analog_volume_init(void)
{
snd_ctl_elem_info_t *info;
int i;
snd_ctl_elem_info_alloca(&info);
snd_ctl_elem_info_set_interface(info, SND_CTL_ELEM_IFACE_MIXER);
for (i = 0; i < 10; i++) {
snd_ctl_elem_info_set_name(info, DAC_VOLUME_NAME);
snd_ctl_elem_info_set_numid(info, 0);
snd_ctl_elem_info_set_index(info, i);
if (snd_ctl_elem_info(ctl, info) < 0)
break;
dac_max = snd_ctl_elem_info_get_max(info);
}
if (i < output_channels - 1)
dac_volumes = i;
else
dac_volumes = output_channels;
snd_ctl_elem_info_set_name(info, DAC_SENSE_NAME);
for (i = 0; i < dac_volumes; i++) {
snd_ctl_elem_info_set_numid(info, 0);
snd_ctl_elem_info_set_index(info, i);
if (snd_ctl_elem_info(ctl, info) < 0)
break;
}
dac_senses = i;
if (dac_senses > 0) {
snd_ctl_elem_info_set_numid(info, 0);
snd_ctl_elem_info_set_index(info, 0);
snd_ctl_elem_info(ctl, info);
dac_sense_items = snd_ctl_elem_info_get_items(info);
for (i = 0; i < dac_sense_items; i++) {
snd_ctl_elem_info_set_item(info, i);
snd_ctl_elem_info(ctl, info);
dac_sense_name[i] = strdup(snd_ctl_elem_info_get_item_name(info));
}
}
for (i = 0; i < 10; i++) {
snd_ctl_elem_info_set_name(info, ADC_VOLUME_NAME);
snd_ctl_elem_info_set_numid(info, 0);
snd_ctl_elem_info_set_index(info, i);
if (snd_ctl_elem_info(ctl, info) < 0)
break;
adc_max = snd_ctl_elem_info_get_max(info);
}
if (i < input_channels - 1)
adc_volumes = i;
else
adc_volumes = input_channels;
snd_ctl_elem_info_set_name(info, ADC_SENSE_NAME);
for (i = 0; i < adc_volumes; i++) {
snd_ctl_elem_info_set_numid(info, 0);
snd_ctl_elem_info_set_index(info, i);
if (snd_ctl_elem_info(ctl, info) < 0)
break;
}
adc_senses = i;
if (adc_senses > 0) {
snd_ctl_elem_info_set_numid(info, 0);
snd_ctl_elem_info_set_index(info, 0);
snd_ctl_elem_info(ctl, info);
adc_sense_items = snd_ctl_elem_info_get_items(info);
for (i = 0; i < adc_sense_items; i++) {
snd_ctl_elem_info_set_item(info, i);
snd_ctl_elem_info(ctl, info);
adc_sense_name[i] = strdup(snd_ctl_elem_info_get_item_name(info));
}
}
for (i = 0; i < 10; i++) {
snd_ctl_elem_info_set_name(info, IPGA_VOLUME_NAME);
snd_ctl_elem_info_set_numid(info, 0);
snd_ctl_elem_info_set_index(info, i);
if (snd_ctl_elem_info(ctl, info) < 0)
break;
}
if (i < input_channels - 1)
ipga_volumes = i;
else
ipga_volumes = input_channels;
}
