void vc_hostfs_exit(void)
{
vcos_log_unregister(&hostfs_log_cat);
if (p_file_info_table)
{
free(p_file_info_table);
p_file_info_table = NULL;
}
}
void mmal_vc_deinit(void)
{
int count;
vcos_mutex_lock(&client.lock);
count = --client.refcount;
if (count != 0)
{
/* Still in use so don't do anything */
vcos_mutex_unlock(&client.lock);
return;
}
vcos_mutex_delete(&client.bulk_lock);
destroy_waitpool(&client.waitpool);
vchiq_close_service(client.service);
vchiq_shutdown(mmal_vchiq_instance);
vcos_log_unregister(VCOS_LOG_CATEGORY);
client.service = VCHIQ_SERVICE_HANDLE_INVALID;
client.inited = 0;
vcos_mutex_unlock(&client.lock);
}
MMAL_STATUS_T mmal_vc_init(void)
{
VCHIQ_SERVICE_PARAMS_T vchiq_params;
MMAL_BOOL_T vchiq_initialised = 0, waitpool_initialised = 0;
MMAL_BOOL_T service_initialised = 0;
MMAL_STATUS_T status = MMAL_EIO;
VCHIQ_STATUS_T vchiq_status;
int count;
vcos_once(&once, init_once);
vcos_mutex_lock(&client.lock);
count = client.refcount++;
if (count > 0)
{
/* Already initialised so nothing to do */
vcos_mutex_unlock(&client.lock);
return MMAL_SUCCESS;
}
vcos_log_register("mmalipc", VCOS_LOG_CATEGORY);
/* Initialise a VCHIQ instance */
vchiq_status = vchiq_initialise(&mmal_vchiq_instance);
if (vchiq_status != VCHIQ_SUCCESS)
{
LOG_ERROR("failed to initialise vchiq");
status = MMAL_EIO;
goto error;
}
vchiq_initialised = 1;
vchiq_status = vchiq_connect(mmal_vchiq_instance);
if (vchiq_status != VCHIQ_SUCCESS)
{
LOG_ERROR("failed to connect to vchiq");
status = MMAL_EIO;
goto error;
}
memset(&vchiq_params,0,sizeof(vchiq_params));
vchiq_params.fourcc = MMAL_CONTROL_FOURCC();
vchiq_params.callback = mmal_vc_vchiq_callback;
vchiq_params.userdata = &client;
vchiq_params.version = WORKER_VER_MAJOR;
vchiq_params.version_min = WORKER_VER_MINIMUM;
vchiq_status = vchiq_open_service(mmal_vchiq_instance, &vchiq_params, &client.service);
if (vchiq_status != VCHIQ_SUCCESS)
{
LOG_ERROR("could not open vchiq service");
status = MMAL_EIO;
goto error;
}
client.usecount = 1; /* usecount set to 1 by the open call. */
service_initialised = 1;
status = create_waitpool(&client.waitpool);
if (status != MMAL_SUCCESS)
{
LOG_ERROR("could not create wait pool");
goto error;
}
waitpool_initialised = 1;
if (vcos_mutex_create(&client.bulk_lock, "mmal client bulk lock") != VCOS_SUCCESS)
{
LOG_ERROR("could not create bulk lock");
status = MMAL_ENOSPC;
goto error;
}
client.inited = 1;
vcos_mutex_unlock(&client.lock);
/* assume we're not using VC immediately. Do this outside the lock */
mmal_vc_release();
return MMAL_SUCCESS;
error:
if (waitpool_initialised)
destroy_waitpool(&client.waitpool);
if (service_initialised)
{
client.usecount = 0;
vchiq_close_service(client.service);
}
if (vchiq_initialised)
vchiq_shutdown(mmal_vchiq_instance);
vcos_log_unregister(VCOS_LOG_CATEGORY);
client.refcount--;
vcos_mutex_unlock(&client.lock);
return status;
}
