VCHIQ_STATUS_T vchiq_open_service(VCHIQ_INSTANCE_T instance, int fourcc, VCHIQ_CALLBACK_T callback, void *userdata, VCHIQ_SERVICE_HANDLE_T *pservice)
{
VCHIQ_STATE_T *state = &instance->state;
VCHIQ_SERVICE_T *service;
VCHIQ_STATUS_T status = VCHIQ_ERROR;
vcos_assert(fourcc != VCHIQ_FOURCC_INVALID);
vcos_assert(callback != NULL);
if (!is_valid_instance(instance))
return VCHIQ_ERROR;
if (!instance->connected)
return VCHIQ_ERROR;
vcos_mutex_lock(&state->mutex);
service = vchiq_add_service_internal(state, fourcc, callback, userdata, VCHIQ_SRVSTATE_OPENING, instance);
vcos_mutex_unlock(&state->mutex);
if (service)
{
status = vchiq_open_service_internal(service);
if (status != VCHIQ_SUCCESS)
{
vchiq_remove_service(&service->base);
service = NULL;
}
}
*pservice = &service->base;
return status;
}
int32_t vchi_service_destroy(const VCHI_SERVICE_HANDLE_T handle)
{
int32_t ret = -1;
struct shim_service *service = (struct shim_service *)handle;
if (service) {
VCHIQ_STATUS_T status = vchiq_remove_service(service->handle);
if (status == VCHIQ_SUCCESS) {
service_free(service);
service = NULL;
}
ret = vchiq_status_to_vchi(status);
}
return ret;
}
VCHIQ_STATUS_T vchiq_shutdown(VCHIQ_INSTANCE_T instance)
{
VCHIQ_CHANNEL_T *local = instance->state.local;
int i;
if (!is_valid_instance(instance))
return VCHIQ_ERROR;
/* Remove all services */
for (i = 0; i < VCHIQ_MAX_SERVICES; i++)
{
if (local->services[i].srvstate != VCHIQ_SRVSTATE_FREE)
{
vchiq_remove_service(&local->services[i].base);
}
}
/* Release the state/instance */
instance->state.initialised = 0;
return VCHIQ_SUCCESS;
}