include/drm/drm_privacy_screen_consumer.h

Source file repositories/reference/linux-study-clean/include/drm/drm_privacy_screen_consumer.h

File Facts

System
Linux kernel
Corpus path
include/drm/drm_privacy_screen_consumer.h
Extension
.h
Size
1983 bytes
Lines
66
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: implementation source
Status
source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef __DRM_PRIVACY_SCREEN_CONSUMER_H__
#define __DRM_PRIVACY_SCREEN_CONSUMER_H__

#include <linux/device.h>
#include <drm/drm_connector.h>

struct drm_privacy_screen;

#if IS_ENABLED(CONFIG_DRM_PRIVACY_SCREEN)
struct drm_privacy_screen *drm_privacy_screen_get(struct device *dev,
						  const char *con_id);
void drm_privacy_screen_put(struct drm_privacy_screen *priv);

int drm_privacy_screen_set_sw_state(struct drm_privacy_screen *priv,
				    enum drm_privacy_screen_status sw_state);
void drm_privacy_screen_get_state(struct drm_privacy_screen *priv,
				  enum drm_privacy_screen_status *sw_state_ret,
				  enum drm_privacy_screen_status *hw_state_ret);

int drm_privacy_screen_register_notifier(struct drm_privacy_screen *priv,
					 struct notifier_block *nb);
int drm_privacy_screen_unregister_notifier(struct drm_privacy_screen *priv,
					   struct notifier_block *nb);
#else
static inline struct drm_privacy_screen *drm_privacy_screen_get(struct device *dev,
								const char *con_id)
{
	return ERR_PTR(-ENODEV);
}
static inline void drm_privacy_screen_put(struct drm_privacy_screen *priv)
{
}
static inline int drm_privacy_screen_set_sw_state(struct drm_privacy_screen *priv,
						  enum drm_privacy_screen_status sw_state)
{
	return -ENODEV;
}
static inline void drm_privacy_screen_get_state(struct drm_privacy_screen *priv,
						enum drm_privacy_screen_status *sw_state_ret,
						enum drm_privacy_screen_status *hw_state_ret)
{
	*sw_state_ret = PRIVACY_SCREEN_DISABLED;
	*hw_state_ret = PRIVACY_SCREEN_DISABLED;
}
static inline int drm_privacy_screen_register_notifier(struct drm_privacy_screen *priv,
						       struct notifier_block *nb)
{
	return -ENODEV;
}
static inline int drm_privacy_screen_unregister_notifier(struct drm_privacy_screen *priv,
							 struct notifier_block *nb)
{
	return -ENODEV;
}
#endif

#endif

Annotation

Implementation Notes