include/uapi/drm/drm_mode.h

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

File Facts

System
Linux kernel
Corpus path
include/uapi/drm/drm_mode.h
Extension
.h
Size
49986 bytes
Lines
1620
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

struct drm_mode_modeinfo {
	__u32 clock;
	__u16 hdisplay;
	__u16 hsync_start;
	__u16 hsync_end;
	__u16 htotal;
	__u16 hskew;
	__u16 vdisplay;
	__u16 vsync_start;
	__u16 vsync_end;
	__u16 vtotal;
	__u16 vscan;

	__u32 vrefresh;

	__u32 flags;
	__u32 type;
	char name[DRM_DISPLAY_MODE_LEN];
};

struct drm_mode_card_res {
	__u64 fb_id_ptr;
	__u64 crtc_id_ptr;
	__u64 connector_id_ptr;
	__u64 encoder_id_ptr;
	__u32 count_fbs;
	__u32 count_crtcs;
	__u32 count_connectors;
	__u32 count_encoders;
	__u32 min_width;
	__u32 max_width;
	__u32 min_height;
	__u32 max_height;
};

struct drm_mode_crtc {
	__u64 set_connectors_ptr;
	__u32 count_connectors;

	__u32 crtc_id; /**< Id */
	__u32 fb_id; /**< Id of framebuffer */

	__u32 x; /**< x Position on the framebuffer */
	__u32 y; /**< y Position on the framebuffer */

	__u32 gamma_size;
	__u32 mode_valid;
	struct drm_mode_modeinfo mode;
};

#define DRM_MODE_PRESENT_TOP_FIELD	(1<<0)
#define DRM_MODE_PRESENT_BOTTOM_FIELD	(1<<1)

/* Planes blend with or override other bits on the CRTC */
struct drm_mode_set_plane {
	__u32 plane_id;
	__u32 crtc_id;
	__u32 fb_id; /* fb object contains surface format type */
	__u32 flags; /* see above flags */

	/* Signed dest location allows it to be partially off screen */
	__s32 crtc_x;
	__s32 crtc_y;
	__u32 crtc_w;
	__u32 crtc_h;

	/* Source values are 16.16 fixed point */
	__u32 src_x;
	__u32 src_y;
	__u32 src_h;
	__u32 src_w;
};

/**
 * struct drm_mode_get_plane - Get plane metadata.
 *
 * Userspace can perform a GETPLANE ioctl to retrieve information about a
 * plane.
 *
 * To retrieve the number of formats supported, set @count_format_types to zero
 * and call the ioctl. @count_format_types will be updated with the value.
 *
 * To retrieve these formats, allocate an array with the memory needed to store
 * @count_format_types formats. Point @format_type_ptr to this array and call
 * the ioctl again (with @count_format_types still set to the value returned in
 * the first ioctl call).
 */
struct drm_mode_get_plane {
	/**
	 * @plane_id: Object ID of the plane whose information should be

Annotation

Implementation Notes