path: root/include/linux/fb.h

#ifndef _LINUX_FB_H
#define _LINUX_FB_H

#include <linux/kgdb.h>
#include <uapi/linux/fb.h>

#define FBIO_CURSOR            _IOWR('F', 0x08, struct fb_cursor_user)

#include <linux/fs.h>
#include <linux/init.h>
#include <linux/workqueue.h>
#include <linux/notifier.h>
#include <linux/list.h>
#include <linux/backlight.h>
#include <linux/slab.h>
#include <asm/io.h>

struct vm_area_struct;
struct fb_info;
struct device;
struct file;
struct videomode;
struct device_node;

/* Definitions below are used in the parsed monitor specs */
#define FB_DPMS_ACTIVE_OFF	1
#define FB_DPMS_SUSPEND		2
#define FB_DPMS_STANDBY		4

#define FB_DISP_DDI		1
#define FB_DISP_ANA_700_300	2
#define FB_DISP_ANA_714_286	4
#define FB_DISP_ANA_1000_400	8
#define FB_DISP_ANA_700_000	16

#define FB_DISP_MONO		32
#define FB_DISP_RGB		64
#define FB_DISP_MULTI		128
#define FB_DISP_UNKNOWN		256

#define FB_SIGNAL_NONE		0
#define FB_SIGNAL_BLANK_BLANK	1
#define FB_SIGNAL_SEPARATE	2
#define FB_SIGNAL_COMPOSITE	4
#define FB_SIGNAL_SYNC_ON_GREEN	8
#define FB_SIGNAL_SERRATION_ON	16

#define FB_MISC_PRIM_COLOR	1
#define FB_MISC_1ST_DETAIL	2	/* First Detailed Timing is preferred */
#define FB_MISC_HDMI		4
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
 */

/*	The resolution of the passed in fb_info about to change */ 
#define FB_EVENT_MODE_CHANGE		0x01
/*	The display on this fb_info is beeing suspended, no access to the
 *	framebuffer is allowed any more after that call returns
 */
#define FB_EVENT_SUSPEND		0x02
/*	The display on this fb_info was resumed, you can restore the display
 *	if you own it
 */
#define FB_EVENT_RESUME			0x03
/*      An entry from the modelist was removed */
#define FB_EVENT_MODE_DELETE            0x04
/*      A driver registered itself */
#define FB_EVENT_FB_REGISTERED          0x05
/*      A driver unregistered itself */
#define FB_EVENT_FB_UNREGISTERED        0x06
/*      CONSOLE-SPECIFIC: get console to framebuffer mapping */
#define FB_EVENT_GET_CONSOLE_MAP        0x07
/*      CONSOLE-SPECIFIC: set console to framebuffer mapping */
#define FB_EVENT_SET_CONSOLE_MAP        0x08
/*      A hardware display blank change occurred */
#define FB_EVENT_BLANK                  0x09
/*      Private modelist is to be replaced */
#define FB_EVENT_NEW_MODELIST           0x0A
/*	The resolution of the passed in fb_info about to change and
        all vc's should be changed         */
#define FB_EVENT_MODE_CHANGE_ALL	0x0B
/*	A software display blank change occurred */
#define FB_EVENT_CONBLANK               0x0C
/*      Get drawing requirements        */
#define FB_EVENT_GET_REQ                0x0D
/*      Unbind from the console if possible */
#define FB_EVENT_FB_UNBIND              0x0E
/*      CONSOLE-SPECIFIC: remap all consoles to new fb - for vga_switcheroo */
#define FB_EVENT_REMAP_ALL_CONSOLE      0x0F
/*      A hardware display blank early change occured */
#define FB_EARLY_EVENT_BLANK		0x10
/*      A hardware display blank revert early change occured */
#define FB_R_EARLY_EVENT_BLANK		0x11

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

struct fb_blit_caps {
	u32 x;
	u32 y;
	u32 len;
	u32 flags;
};

#ifdef CONFIG_FB_NOTIFY
extern int fb_register_client(struct notifier_block *nb);
extern int fb_unregister_client(struct notifier_block *nb);
extern int fb_notifier_call_chain(unsigned long val, void *v);
#else
static inline int fb_register_client(struct notifier_block *nb)
{
	return 0;
};

static inline int fb_unregister_client(struct notifier_block *nb)
{
	return 0;
};

static inline int fb_notifier_call_chain(unsigned long val, void *v)
{
	return 0;
};
#endif

/*
 * Pixmap structure definition
 *
 * The purpose of this structure is to translate data
 * from the hardware independent format of fbdev to what
 * format the hardware needs.
 */

#define FB_PIXMAP_DEFAULT 1     /* used internally by fbcon */
#define FB_PIXMAP_SYSTEM  2     /* memory is in system RAM  */
#define FB_PIXMAP_IO      4     /* memory is iomapped       */
#define FB_PIXMAP_SYNC    256   /* set if GPU can DMA       */

struct fb_pixmap {
	u8  *addr;		/* pointer to memory			*/
	u32 size;		/* size of buffer in bytes		*/
	u32 offset;		/* current offset to buffer		*/
	u32 buf_align;		/* byte alignment of each bitmap	*/
	u32 scan_align;		/* alignment per scanline		*/
	u32 access_align;	/* alignment per read/write (bits)	*/
	u32 flags;		/* see FB_PIXMAP_*			*/
	u32 blit_x;             /* supported bit block dimensions (1-32)*/
	u32 blit_y;             /* Format: blit_x = 1 << (width - 1)    */
	                        /*         blit_y = 1 << (height - 1)   */
	                        /* if 0, will be set to 0xffffffff (all)*/
	/* access methods */
	void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size);
	void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size);
};

#ifdef CONFIG_FB_DEFERRED_IO
struct fb_deferred_io {
	/* delay between mkwrite and deferred handler */
	unsigned long delay;
	struct mutex lock;