include/linux/fb.h

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

File Facts

System
Linux kernel
Corpus path
include/linux/fb.h
Extension
.h
Size
30653 bytes
Lines
912
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct fb_chroma {
	__u32 redx;	/* in fraction of 1024 */
	__u32 greenx;
	__u32 bluex;
	__u32 whitex;
	__u32 redy;
	__u32 greeny;
	__u32 bluey;
	__u32 whitey;
};

struct fb_monspecs {
	struct fb_chroma chroma;
	struct fb_videomode *modedb;	/* mode database */
	__u8  manufacturer[4];		/* Manufacturer */
	__u8  monitor[14];		/* Monitor String */
	__u8  serial_no[14];		/* Serial Number */
	__u8  ascii[14];		/* ? */
	__u32 modedb_len;		/* mode database length */
	__u32 model;			/* Monitor Model */
	__u32 serial;			/* Serial Number - Integer */
	__u32 year;			/* Year manufactured */
	__u32 week;			/* Week Manufactured */
	__u32 hfmin;			/* hfreq lower limit (Hz) */
	__u32 hfmax;			/* hfreq upper limit (Hz) */
	__u32 dclkmin;			/* pixelclock lower limit (Hz) */
	__u32 dclkmax;			/* pixelclock upper limit (Hz) */
	__u16 input;			/* display type - see FB_DISP_* */
	__u16 dpms;			/* DPMS support - see FB_DPMS_ */
	__u16 signal;			/* Signal Type - see FB_SIGNAL_* */
	__u16 vfmin;			/* vfreq lower limit (Hz) */
	__u16 vfmax;			/* vfreq upper limit (Hz) */
	__u16 gamma;			/* Gamma - in fractions of 100 */
	__u16 gtf	: 1;		/* supports GTF */
	__u16 misc;			/* Misc flags - see FB_MISC_* */
	__u8  version;			/* EDID version... */
	__u8  revision;			/* ...and revision */
	__u8  max_x;			/* Maximum horizontal size (cm) */
	__u8  max_y;			/* Maximum vertical size (cm) */
};

struct fb_cmap_user {
	__u32 start;			/* First entry	*/
	__u32 len;			/* Number of entries */
	__u16 __user *red;		/* Red values	*/
	__u16 __user *green;
	__u16 __user *blue;
	__u16 __user *transp;		/* transparency, can be NULL */
};

struct fb_image_user {
	__u32 dx;			/* Where to place image */
	__u32 dy;
	__u32 width;			/* Size of image */
	__u32 height;
	__u32 fg_color;			/* Only used when a mono bitmap */
	__u32 bg_color;
	__u8  depth;			/* Depth of the image */
	const char __user *data;	/* Pointer to image data */
	struct fb_cmap_user cmap;	/* color map info */
};

struct fb_cursor_user {
	__u16 set;			/* what to set */
	__u16 enable;			/* cursor on/off */
	__u16 rop;			/* bitop operation */
	const char __user *mask;	/* cursor mask bits */
	struct fbcurpos hot;		/* cursor hot spot */
	struct fb_image_user image;	/* Cursor image */
};

/*
 * Register/unregister for framebuffer events
 */

#ifdef CONFIG_GUMSTIX_AM200EPD
/* only used by mach-pxa/am200epd.c */
#define FB_EVENT_FB_REGISTERED          0x05
#define FB_EVENT_FB_UNREGISTERED        0x06
#endif

struct fb_event {
	struct fb_info *info;
	void *data;
};

/*	Enough for the VT console needs, see its max_font_width/height */
#define FB_MAX_BLIT_WIDTH	64
#define FB_MAX_BLIT_HEIGHT	128

Annotation

Implementation Notes