Ejemplos de iss_pipeline_pm_power_one en C++ (Cpp)

Ejemplo n.º 1

Archivo: iss.c Proyecto: a2hojsjsjs/linux

/*
 * iss_pipeline_pm_power - Apply power change to all entities in a pipeline
 * @entity: The entity
 * @change: Use count change
 *
 * Walk the pipeline to update the use count and the power state of all non-node
 * entities.
 *
 * Return 0 on success or a negative error code on failure.
 */
static int iss_pipeline_pm_power(struct media_entity *entity, int change,
				 struct media_entity_graph *graph)
{
	struct media_entity *first = entity;
	int ret = 0;

	if (!change)
		return 0;

	media_entity_graph_walk_start(graph, entity);

	while (!ret && (entity = media_entity_graph_walk_next(graph)))
		if (is_media_entity_v4l2_subdev(entity))
			ret = iss_pipeline_pm_power_one(entity, change);

	if (!ret)
		return 0;

	media_entity_graph_walk_start(graph, first);

	while ((first = media_entity_graph_walk_next(graph)) &&
	       first != entity)
		if (is_media_entity_v4l2_subdev(first))
			iss_pipeline_pm_power_one(first, -change);

	return ret;
}

Ejemplo n.º 2

Archivo: iss.c Proyecto: vanquishsecurity/linux

/*
 * iss_pipeline_pm_power - Apply power change to all entities in a pipeline
 * @entity: The entity
 * @change: Use count change
 *
 * Walk the pipeline to update the use count and the power state of all non-node
 * entities.
 *
 * Return 0 on success or a negative error code on failure.
 */
static int iss_pipeline_pm_power(struct media_entity *entity, int change)
{
	struct media_entity_graph graph;
	struct media_entity *first = entity;
	int ret = 0;

	if (!change)
		return 0;

	media_entity_graph_walk_start(&graph, entity);

	while (!ret && (entity = media_entity_graph_walk_next(&graph)))
		if (media_entity_type(entity) != MEDIA_ENT_T_DEVNODE)
			ret = iss_pipeline_pm_power_one(entity, change);

	if (!ret)
		return 0;

	media_entity_graph_walk_start(&graph, first);

	while ((first = media_entity_graph_walk_next(&graph))
	       && first != entity)
		if (media_entity_type(first) != MEDIA_ENT_T_DEVNODE)
			iss_pipeline_pm_power_one(first, -change);

	return ret;
}