void SDL_SYS_JoystickDetect()
{
#if SDL_USE_LIBUDEV
struct udev_device *dev = NULL;
const char *devnode = NULL;
const char *action = NULL;
const char *val = NULL;
while (HotplugUpdateAvailable()) {
dev = UDEV_udev_monitor_receive_device(udev_mon);
if (dev == NULL) {
break;
}
val = UDEV_udev_device_get_property_value(dev, "ID_INPUT_JOYSTICK");
if ((!val) || (SDL_strcmp(val, "1") != 0)) {
continue;
}
action = UDEV_udev_device_get_action(dev);
devnode = UDEV_udev_device_get_devnode(dev);
if (SDL_strcmp(action, "add") == 0) {
const int device_index = MaybeAddDevice(devnode);
if (device_index != -1) {
/* !!! FIXME: Move this to an SDL_PrivateJoyDeviceAdded() function? */
#if !SDL_EVENTS_DISABLED
SDL_Event event;
event.type = SDL_JOYDEVICEADDED;
if (SDL_GetEventState(event.type) == SDL_ENABLE) {
event.jdevice.which = device_index;
if ( (SDL_EventOK == NULL) ||
(*SDL_EventOK) (SDL_EventOKParam, &event) ) {
SDL_PushEvent(&event);
}
}
#endif // !SDL_EVENTS_DISABLED
}
} else if (SDL_strcmp(action, "remove") == 0) {
const int inst = MaybeRemoveDevice(devnode);
if (inst != -1) {
/* !!! FIXME: Move this to an SDL_PrivateJoyDeviceRemoved() function? */
#if !SDL_EVENTS_DISABLED
SDL_Event event;
event.type = SDL_JOYDEVICEREMOVED;
if (SDL_GetEventState(event.type) == SDL_ENABLE) {
event.jdevice.which = inst;
if ( (SDL_EventOK == NULL) ||
(*SDL_EventOK) (SDL_EventOKParam, &event) ) {
SDL_PushEvent(&event);
}
}
#endif // !SDL_EVENTS_DISABLED
}
}
UDEV_udev_device_unref(dev);
}
#endif
}
void joystick_udev_callback(SDL_UDEV_deviceevent udev_type, SDL_UDEV_deviceclass udev_class, const char *devpath)
{
int instance;
if (devpath == NULL || udev_class != SDL_UDEV_DEVICE_JOYSTICK) {
return;
}
switch( udev_type )
{
case SDL_UDEV_DEVICEADDED:
instance = MaybeAddDevice(devpath);
if (instance != -1) {
/* !!! FIXME: Move this to an SDL_PrivateJoyDeviceAdded() function? */
#if !SDL_EVENTS_DISABLED
SDL_Event event;
event.type = SDL_JOYDEVICEADDED;
if (SDL_GetEventState(event.type) == SDL_ENABLE) {
event.jdevice.which = instance;
if ( (SDL_EventOK == NULL) ||
(*SDL_EventOK) (SDL_EventOKParam, &event) ) {
SDL_PushEvent(&event);
}
}
#endif /* !SDL_EVENTS_DISABLED */
}
break;
case SDL_UDEV_DEVICEREMOVED:
instance = MaybeRemoveDevice(devpath);
if (instance != -1) {
/* !!! FIXME: Move this to an SDL_PrivateJoyDeviceRemoved() function? */
#if !SDL_EVENTS_DISABLED
SDL_Event event;
event.type = SDL_JOYDEVICEREMOVED;
if (SDL_GetEventState(event.type) == SDL_ENABLE) {
event.jdevice.which = instance;
if ( (SDL_EventOK == NULL) ||
(*SDL_EventOK) (SDL_EventOKParam, &event) ) {
SDL_PushEvent(&event);
}
}
#endif /* !SDL_EVENTS_DISABLED */
}
break;
default:
break;
}
}
void joystick_udev_callback(SDL_UDEV_deviceevent udev_type, int udev_class, const char *devpath)
{
if (devpath == NULL || !(udev_class & SDL_UDEV_DEVICE_JOYSTICK)) {
return;
}
switch( udev_type )
{
case SDL_UDEV_DEVICEADDED:
MaybeAddDevice(devpath);
break;
case SDL_UDEV_DEVICEREMOVED:
MaybeRemoveDevice(devpath);
break;
default:
break;
}
}
