drm_client.h

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/* SPDX-License-Identifier: GPL-2.0 or MIT */
 
#ifndef _DRM_CLIENT_H_
#define _DRM_CLIENT_H_
 
#include <linux/iosys-map.h>
#include <linux/lockdep.h>
#include <linux/mutex.h>
#include <linux/types.h>
 
#include <drm/drm_connector.h>
#include <drm/drm_crtc.h>
 
struct drm_client_dev;
struct drm_device;
struct drm_file;
struct drm_framebuffer;
struct drm_gem_object;
struct drm_minor;
struct module;
 
struct drm_client_funcs {
    struct module *owner;
 
    void (*free)(struct drm_client_dev *client);
 
    void (*unregister)(struct drm_client_dev *client);
 
    int (*restore)(struct drm_client_dev *client, bool force);
 
    int (*hotplug)(struct drm_client_dev *client);
 
    int (*suspend)(struct drm_client_dev *client);
 
    int (*resume)(struct drm_client_dev *client);
};
 
struct drm_client_dev {
    struct drm_device *dev;
 
    const char *name;
 
    struct list_head list;
 
    const struct drm_client_funcs *funcs;
 
    struct drm_file *file;
 
    struct mutex modeset_mutex;
 
    struct drm_mode_set *modesets;
 
    bool suspended;
 
    bool hotplug_pending;
 
    bool hotplug_failed;
};
 
int drm_client_init(struct drm_device *dev, struct drm_client_dev *client,
            const char *name, const struct drm_client_funcs *funcs);
void drm_client_release(struct drm_client_dev *client);
void drm_client_register(struct drm_client_dev *client);
 
struct drm_client_buffer {
    struct drm_client_dev *client;
 
    struct drm_gem_object *gem;
 
    struct iosys_map map;
 
    struct drm_framebuffer *fb;
};
 
struct drm_client_buffer *
drm_client_buffer_create(struct drm_client_dev *client, u32 width, u32 height,
             u32 format, u32 handle, u32 pitch);
struct drm_client_buffer *
drm_client_buffer_create_dumb(struct drm_client_dev *client, u32 width, u32 height, u32 format);
void drm_client_buffer_delete(struct drm_client_buffer *buffer);
int drm_client_buffer_flush(struct drm_client_buffer *buffer, struct drm_rect *rect);
int drm_client_buffer_vmap_local(struct drm_client_buffer *buffer,
                 struct iosys_map *map_copy);
void drm_client_buffer_vunmap_local(struct drm_client_buffer *buffer);
int drm_client_buffer_vmap(struct drm_client_buffer *buffer,
               struct iosys_map *map);
void drm_client_buffer_vunmap(struct drm_client_buffer *buffer);
 
int drm_client_modeset_create(struct drm_client_dev *client);
void drm_client_modeset_free(struct drm_client_dev *client);
int drm_client_modeset_probe(struct drm_client_dev *client, unsigned int width, unsigned int height);
bool drm_client_rotation(struct drm_mode_set *modeset, unsigned int *rotation);
int drm_client_modeset_check(struct drm_client_dev *client);
int drm_client_modeset_commit_locked(struct drm_client_dev *client);
int drm_client_modeset_commit(struct drm_client_dev *client);
int drm_client_modeset_dpms(struct drm_client_dev *client, int mode);
int drm_client_modeset_wait_for_vblank(struct drm_client_dev *client, unsigned int crtc_index);
 
#define drm_client_for_each_modeset(modeset, client) \
    for (({ lockdep_assert_held(&(client)->modeset_mutex); }), \
         modeset = (client)->modesets; modeset->crtc; modeset++)
 
#define drm_client_for_each_connector_iter(connector, iter) \
    drm_for_each_connector_iter(connector, iter) \
        if (connector->connector_type != DRM_MODE_CONNECTOR_WRITEBACK)
 
#endif