bool CALSAHControlMonitor::Add(const std::string& ctlHandleName,
snd_ctl_elem_iface_t interface,
unsigned int device,
const std::string& name)
{
snd_hctl_t *hctl = GetHandle(ctlHandleName);
if (!hctl)
{
return false;
}
snd_ctl_elem_id_t *id;
snd_ctl_elem_id_alloca(&id);
snd_ctl_elem_id_set_interface(id, interface);
snd_ctl_elem_id_set_name (id, name.c_str());
snd_ctl_elem_id_set_device (id, device);
snd_hctl_elem_t *elem = snd_hctl_find_elem(hctl, id);
if (!elem)
{
PutHandle(ctlHandleName);
return false;
}
snd_hctl_elem_set_callback(elem, HCTLCallback);
return true;
}
static void
_phoneui_utils_sound_init_set_volume_mute_control(enum SoundState state, enum SoundStateType type,
enum SoundControlType control_type, const char *ctl_name)
{
snd_hctl_elem_t *elem;
/*if an empty string, return */
if (*ctl_name == '\0') {
controls[calc_state_index(state, type)][control_type].mute_element = NULL;
return;
}
elem = controls[calc_state_index(state, type)][control_type].mute_element =
_phoneui_utils_sound_init_get_control_by_name(ctl_name);
if (elem) {
snd_hctl_elem_set_callback(elem, _phoneui_utils_sound_volume_mute_changed_cb);
}
else {
g_warning("ALSA: No control named '%s' found - "
"Sound state: %d type: %d", ctl_name, state, control_type);
}
}