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drm_privacy_screen_consumer.h
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/* SPDX-License-Identifier: MIT */
/*
* Copyright (C) 2020 Red Hat, Inc.
*
* Authors:
* Hans de Goede <[email protected]>
*/
#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