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#ifndef _LINUX_FB_H

#define _LINUX_FB_H

#include 

#include 

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

#include 

#include 

#include 

#include 

#include 

#include 

#include 

#include 

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; /* mutex that protects the page list */

	struct list_head pagelist; /* list of touched pages */

	/* callback */

	void (*first_io)(struct fb_info *info);

	void (*deferred_io)(struct fb_info *info, struct list_head *pagelist);

};

#endif

/*

 * Frame buffer operations

 *

 * LOCKING NOTE: those functions must _ALL_ be called with the console

 * semaphore held, this is the only suitable locking mechanism we have

 * in 2.6. Some may be called at interrupt time at this point though.

 *

 * The exception to this is the debug related hooks.  Putting the fb

 * into a debug state (e.g. flipping to the kernel console) and restoring

 * it must be done in a lock-free manner, so low level drivers should

 * keep track of the initial console (if applicable) and may need to

 * perform direct, unlocked hardware writes in these hooks.

 */

struct fb_ops {

	/* open/release and usage marking */

	struct module *owner;

	int (*fb_open)(struct fb_info *info, int user);

	int (*fb_release)(struct fb_info *info, int user);

	/* For framebuffers with strange non linear layouts or that do not

	 * work with normal memory mapped access

	 */

	ssize_t (*fb_read)(struct fb_info *info, char __user *buf,

			   size_t count, loff_t *ppos);

	ssize_t (*fb_write)(struct fb_info *info, const char __user *buf,

			    size_t count, loff_t *ppos);

	/* checks var and eventually tweaks it to something supported,

	 * DO NOT MODIFY PAR */

	int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);

	/* set the video mode according to info->var */

	int (*fb_set_par)(struct fb_info *info);

	/* set color register */

	int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green,

			    unsigned blue, unsigned transp, struct fb_info *info);

	/* set color registers in batch */

	int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info);

	/* blank display */

	int (*fb_blank)(int blank, struct fb_info *info);

	/* pan display */

	int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info);

	/* Draws a rectangle */

	void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);

	/* Copy data from area to another */

	void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);

	/* Draws a image to the display */

	void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);

	/* Draws cursor */

	int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);

	/* Rotates the display */

	void (*fb_rotate)(struct fb_info *info, int angle);

	/* wait for blit idle, optional */

	int (*fb_sync)(struct fb_info *info);

	/* perform fb specific ioctl (optional) */

	int (*fb_ioctl)(struct fb_info *info, unsigned int cmd,

			unsigned long arg);

	/* Handle 32bit compat ioctl (optional) */

	int (*fb_compat_ioctl)(struct fb_info *info, unsigned cmd,

			unsigned long arg);

	/* perform fb specific mmap */

//   int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma);

	/* get capability given var */

	void (*fb_get_caps)(struct fb_info *info, struct fb_blit_caps *caps,

			    struct fb_var_screeninfo *var);

	/* teardown any resources to do with this framebuffer */

	void (*fb_destroy)(struct fb_info *info);

	/* called at KDB enter and leave time to prepare the console */

	int (*fb_debug_enter)(struct fb_info *info);

	int (*fb_debug_leave)(struct fb_info *info);

};

#ifdef CONFIG_FB_TILEBLITTING

#define FB_TILE_CURSOR_NONE        0

#define FB_TILE_CURSOR_UNDERLINE   1

#define FB_TILE_CURSOR_LOWER_THIRD 2

#define FB_TILE_CURSOR_LOWER_HALF  3

#define FB_TILE_CURSOR_TWO_THIRDS  4

#define FB_TILE_CURSOR_BLOCK       5

struct fb_tilemap {

	__u32 width;                /* width of each tile in pixels */

	__u32 height;               /* height of each tile in scanlines */

	__u32 depth;                /* color depth of each tile */

	__u32 length;               /* number of tiles in the map */

	const __u8 *data;           /* actual tile map: a bitmap array, packed

				       to the nearest byte */

};

struct fb_tilerect {

	__u32 sx;                   /* origin in the x-axis */

	__u32 sy;                   /* origin in the y-axis */

	__u32 width;                /* number of tiles in the x-axis */

	__u32 height;               /* number of tiles in the y-axis */

	__u32 index;                /* what tile to use: index to tile map */

	__u32 fg;                   /* foreground color */

	__u32 bg;                   /* background color */

	__u32 rop;                  /* raster operation */

};

struct fb_tilearea {

	__u32 sx;                   /* source origin in the x-axis */

	__u32 sy;                   /* source origin in the y-axis */

	__u32 dx;                   /* destination origin in the x-axis */

	__u32 dy;                   /* destination origin in the y-axis */

	__u32 width;                /* number of tiles in the x-axis */

	__u32 height;               /* number of tiles in the y-axis */

};

struct fb_tileblit {

	__u32 sx;                   /* origin in the x-axis */

	__u32 sy;                   /* origin in the y-axis */

	__u32 width;                /* number of tiles in the x-axis */

	__u32 height;               /* number of tiles in the y-axis */

	__u32 fg;                   /* foreground color */

	__u32 bg;                   /* background color */

	__u32 length;               /* number of tiles to draw */

	__u32 *indices;             /* array of indices to tile map */

};

struct fb_tilecursor {

	__u32 sx;                   /* cursor position in the x-axis */

	__u32 sy;                   /* cursor position in the y-axis */

	__u32 mode;                 /* 0 = erase, 1 = draw */

	__u32 shape;                /* see FB_TILE_CURSOR_* */

	__u32 fg;                   /* foreground color */

	__u32 bg;                   /* background color */

};

struct fb_tile_ops {

	/* set tile characteristics */

	void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map);

	/* all dimensions from hereon are in terms of tiles */

	/* move a rectangular region of tiles from one area to another*/

	void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area);

	/* fill a rectangular region with a tile */

	void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect);

	/* copy an array of tiles */

	void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit);

	/* cursor */

	void (*fb_tilecursor)(struct fb_info *info,

			      struct fb_tilecursor *cursor);

	/* get maximum length of the tile map */

	int (*fb_get_tilemax)(struct fb_info *info);

};

#endif /* CONFIG_FB_TILEBLITTING */

/* FBINFO_* = fb_info.flags bit flags */

#define FBINFO_MODULE		0x0001	/* Low-level driver is a module */

#define FBINFO_HWACCEL_DISABLED	0x0002

	/* When FBINFO_HWACCEL_DISABLED is set:

	 *  Hardware acceleration is turned off.  Software implementations

	 *  of required functions (copyarea(), fillrect(), and imageblit())

	 *  takes over; acceleration engine should be in a quiescent state */

/* hints */

#define FBINFO_VIRTFB		0x0004 /* FB is System RAM, not device. */

#define FBINFO_PARTIAL_PAN_OK	0x0040 /* otw use pan only for double-buffering */

#define FBINFO_READS_FAST	0x0080 /* soft-copy faster than rendering */

/* hardware supported ops */

/*  semantics: when a bit is set, it indicates that the operation is

 *   accelerated by hardware.

 *  required functions will still work even if the bit is not set.

 *  optional functions may not even exist if the flag bit is not set.

 */

#define FBINFO_HWACCEL_NONE		0x0000

#define FBINFO_HWACCEL_COPYAREA		0x0100 /* required */

#define FBINFO_HWACCEL_FILLRECT		0x0200 /* required */

#define FBINFO_HWACCEL_IMAGEBLIT	0x0400 /* required */

#define FBINFO_HWACCEL_ROTATE		0x0800 /* optional */

#define FBINFO_HWACCEL_XPAN		0x1000 /* optional */

#define FBINFO_HWACCEL_YPAN		0x2000 /* optional */

#define FBINFO_HWACCEL_YWRAP		0x4000 /* optional */

#define FBINFO_MISC_USEREVENT          0x10000 /* event request

						  from userspace */

#define FBINFO_MISC_TILEBLITTING       0x20000 /* use tile blitting */

/* A driver may set this flag to indicate that it does want a set_par to be

 * called every time when fbcon_switch is executed. The advantage is that with

 * this flag set you can really be sure that set_par is always called before

 * any of the functions dependent on the correct hardware state or altering

 * that state, even if you are using some broken X releases. The disadvantage

 * is that it introduces unwanted delays to every console switch if set_par

 * is slow. It is a good idea to try this flag in the drivers initialization

 * code whenever there is a bug report related to switching between X and the

 * framebuffer console.

 */

#define FBINFO_MISC_ALWAYS_SETPAR   0x40000

/* where the fb is a firmware driver, and can be replaced with a proper one */

#define FBINFO_MISC_FIRMWARE        0x80000

/*

 * Host and GPU endianness differ.

 */

#define FBINFO_FOREIGN_ENDIAN	0x100000

/*

 * Big endian math. This is the same flags as above, but with different

 * meaning, it is set by the fb subsystem depending FOREIGN_ENDIAN flag

 * and host endianness. Drivers should not use this flag.

 */

#define FBINFO_BE_MATH  0x100000

/* report to the VT layer that this fb driver can accept forced console

   output like oopses */

#define FBINFO_CAN_FORCE_OUTPUT     0x200000

struct fb_info {

	atomic_t count;

	int node;

	int flags;

	struct mutex lock;		/* Lock for open/release/ioctl funcs */

	struct mutex mm_lock;		/* Lock for fb_mmap and smem_* fields */

	struct fb_var_screeninfo var;	/* Current var */

	struct fb_fix_screeninfo fix;	/* Current fix */

	struct fb_monspecs monspecs;	/* Current Monitor specs */

//   struct work_struct queue;   /* Framebuffer event queue */

//   struct fb_pixmap pixmap;    /* Image hardware mapper */

//   struct fb_pixmap sprite;    /* Cursor hardware mapper */

//   struct fb_cmap cmap;        /* Current cmap */

	struct list_head modelist;      /* mode list */

	struct fb_videomode *mode;	/* current mode */

#ifdef CONFIG_FB_BACKLIGHT

	/* assigned backlight device */

	/* set before framebuffer registration,

	   remove after unregister */

	struct backlight_device *bl_dev;

	/* Backlight level curve */

	struct mutex bl_curve_mutex;

	u8 bl_curve[FB_BACKLIGHT_LEVELS];

#endif

#ifdef CONFIG_FB_DEFERRED_IO

	struct delayed_work deferred_work;

	struct fb_deferred_io *fbdefio;

#endif

	struct fb_ops *fbops;

	struct device *device;		/* This is the parent */

	struct device *dev;		/* This is this fb device */

	int class_flag;                    /* private sysfs flags */

#ifdef CONFIG_FB_TILEBLITTING

	struct fb_tile_ops *tileops;    /* Tile Blitting */

#endif

	union {

		char __iomem *screen_base;	/* Virtual address */

		char *screen_buffer;

	};

	unsigned long screen_size;	/* Amount of ioremapped VRAM or 0 */

	void *pseudo_palette;		/* Fake palette of 16 colors */

#define FBINFO_STATE_RUNNING	0

#define FBINFO_STATE_SUSPENDED	1

	u32 state;			/* Hardware state i.e suspend */

	void *fbcon_par;                /* fbcon use-only private area */

	/* From here on everything is device dependent */

	void *par;

	/* we need the PCI or similar aperture base/size not

	   smem_start/size as smem_start may just be an object

	   allocated inside the aperture so may not actually overlap */

	struct apertures_struct {

		unsigned int count;

		struct aperture {

			resource_size_t base;

			resource_size_t size;

		} ranges[0];

	} *apertures;

	bool skip_vt_switch; /* no VT switch on suspend/resume required */

};

static inline struct apertures_struct *alloc_apertures(unsigned int max_num) {

	struct apertures_struct *a = kzalloc(sizeof(struct apertures_struct)

			+ max_num * sizeof(struct aperture), GFP_KERNEL);

	if (!a)

		return NULL;

	a->count = max_num;

	return a;

}

#ifdef MODULE

#define FBINFO_DEFAULT	FBINFO_MODULE

#else

#define FBINFO_DEFAULT	0

#endif

// This will go away

#define FBINFO_FLAG_MODULE	FBINFO_MODULE

#define FBINFO_FLAG_DEFAULT	FBINFO_DEFAULT

/* This will go away

 * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags

 * when it wants to turn the acceleration engine on.  This is

 * really a separate operation, and should be modified via sysfs.

 *  But for now, we leave it broken with the following define

 */

#define STUPID_ACCELF_TEXT_SHIT

// This will go away

#if defined(__sparc__)

/* We map all of our framebuffers such that big-endian accesses

 * are what we want, so the following is sufficient.

 */

// This will go away

#define fb_readb sbus_readb

#define fb_readw sbus_readw

#define fb_readl sbus_readl

#define fb_readq sbus_readq

#define fb_writeb sbus_writeb

#define fb_writew sbus_writew

#define fb_writel sbus_writel

#define fb_writeq sbus_writeq

#define fb_memset sbus_memset_io

#define fb_memcpy_fromfb sbus_memcpy_fromio

#define fb_memcpy_tofb sbus_memcpy_toio

#elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || defined(__sh__) || defined(__powerpc__) || defined(__avr32__) || defined(__bfin__) || defined(__arm__)

#define fb_readb __raw_readb

#define fb_readw __raw_readw

#define fb_readl __raw_readl

#define fb_readq __raw_readq

#define fb_writeb __raw_writeb

#define fb_writew __raw_writew

#define fb_writel __raw_writel

#define fb_writeq __raw_writeq

#define fb_memset memset_io

#define fb_memcpy_fromfb memcpy_fromio

#define fb_memcpy_tofb memcpy_toio

#else

#define fb_readb(addr) (*(volatile u8 *) (addr))

#define fb_readw(addr) (*(volatile u16 *) (addr))

#define fb_readl(addr) (*(volatile u32 *) (addr))

#define fb_readq(addr) (*(volatile u64 *) (addr))

#define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))

#define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))

#define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))

#define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b))

#define fb_memset memset

#define fb_memcpy_fromfb memcpy

#define fb_memcpy_tofb memcpy

#endif

#define FB_LEFT_POS(p, bpp)          (fb_be_math(p) ? (32 - (bpp)) : 0)

#define FB_SHIFT_HIGH(p, val, bits)  (fb_be_math(p) ? (val) >> (bits) : \

						      (val) << (bits))

#define FB_SHIFT_LOW(p, val, bits)   (fb_be_math(p) ? (val) << (bits) : \

						      (val) >> (bits))

    /*

     *  `Generic' versions of the frame buffer device operations

     */

extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var);

extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var);

extern int fb_blank(struct fb_info *info, int blank);

extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);

extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);

extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image);

/*

 * Drawing operations where framebuffer is in system RAM

 */

extern void sys_fillrect(struct fb_info *info, const struct fb_fillrect *rect);

extern void sys_copyarea(struct fb_info *info, const struct fb_copyarea *area);

extern void sys_imageblit(struct fb_info *info, const struct fb_image *image);

extern ssize_t fb_sys_read(struct fb_info *info, char __user *buf,

			   size_t count, loff_t *ppos);

extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,

			    size_t count, loff_t *ppos);

/* drivers/video/fbmem.c */

extern int register_framebuffer(struct fb_info *fb_info);

extern int unregister_framebuffer(struct fb_info *fb_info);

extern int unlink_framebuffer(struct fb_info *fb_info);

extern int remove_conflicting_framebuffers(struct apertures_struct *a,

					   const char *name, bool primary);

extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);

extern int fb_show_logo(struct fb_info *fb_info, int rotate);

extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);

extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx,

				u32 height, u32 shift_high, u32 shift_low, u32 mod);

extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height);

extern void fb_set_suspend(struct fb_info *info, int state);

extern int fb_get_color_depth(struct fb_var_screeninfo *var,

			      struct fb_fix_screeninfo *fix);

extern int fb_get_options(const char *name, char **option);

extern int fb_new_modelist(struct fb_info *info);

extern struct fb_info *registered_fb[FB_MAX];

extern int num_registered_fb;

extern struct class *fb_class;

extern int lock_fb_info(struct fb_info *info);

static inline void unlock_fb_info(struct fb_info *info)

{

	mutex_unlock(&info->lock);

}

static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch,

					   u8 *src, u32 s_pitch, u32 height)

{

	u32 i, j;

	d_pitch -= s_pitch;

	for (i = height; i--; ) {

		/* s_pitch is a few bytes at the most, memcpy is suboptimal */

		for (j = 0; j < s_pitch; j++)

			*dst++ = *src++;

		dst += d_pitch;

	}

}

/* drivers/video/fb_defio.c */

extern void fb_deferred_io_init(struct fb_info *info);

extern void fb_deferred_io_open(struct fb_info *info,

				struct inode *inode,

				struct file *file);

extern void fb_deferred_io_cleanup(struct fb_info *info);

extern int fb_deferred_io_fsync(struct file *file, loff_t start,

				loff_t end, int datasync);

static inline bool fb_be_math(struct fb_info *info)

{

#ifdef CONFIG_FB_FOREIGN_ENDIAN

#if defined(CONFIG_FB_BOTH_ENDIAN)

	return info->flags & FBINFO_BE_MATH;

#elif defined(CONFIG_FB_BIG_ENDIAN)

	return true;

#elif defined(CONFIG_FB_LITTLE_ENDIAN)

	return false;

#endif /* CONFIG_FB_BOTH_ENDIAN */

#else

#ifdef __BIG_ENDIAN

	return true;

#else

	return false;

#endif /* __BIG_ENDIAN */

#endif /* CONFIG_FB_FOREIGN_ENDIAN */

}

/* drivers/video/fbsysfs.c */

extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);

extern void framebuffer_release(struct fb_info *info);

extern int fb_init_device(struct fb_info *fb_info);

extern void fb_cleanup_device(struct fb_info *head);

extern void fb_bl_default_curve(struct fb_info *fb_info, u8 off, u8 min, u8 max);

/* drivers/video/fbmon.c */

#define FB_MAXTIMINGS		0

#define FB_VSYNCTIMINGS		1

#define FB_HSYNCTIMINGS		2

#define FB_DCLKTIMINGS		3

#define FB_IGNOREMON		0x100

#define FB_MODE_IS_UNKNOWN	0

#define FB_MODE_IS_DETAILED	1

#define FB_MODE_IS_STANDARD	2

#define FB_MODE_IS_VESA		4

#define FB_MODE_IS_CALCULATED	8

#define FB_MODE_IS_FIRST	16

#define FB_MODE_IS_FROM_VAR     32

extern int fbmon_dpms(const struct fb_info *fb_info);

extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var,

		       struct fb_info *info);

extern int fb_validate_mode(const struct fb_var_screeninfo *var,

			    struct fb_info *info);

extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);

extern const unsigned char *fb_firmware_edid(struct device *device);

extern void fb_edid_to_monspecs(unsigned char *edid,

				struct fb_monspecs *specs);

extern void fb_edid_add_monspecs(unsigned char *edid,

				 struct fb_monspecs *specs);

extern void fb_destroy_modedb(struct fb_videomode *modedb);

extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb);

extern unsigned char *fb_ddc_read(struct i2c_adapter *adapter);

extern int of_get_fb_videomode(struct device_node *np,

			       struct fb_videomode *fb,

			       int index);

extern int fb_videomode_from_videomode(const struct videomode *vm,

				       struct fb_videomode *fbmode);

/* drivers/video/modedb.c */

#define VESA_MODEDB_SIZE 43

#define DMT_SIZE 0x50

extern void fb_var_to_videomode(struct fb_videomode *mode,

				const struct fb_var_screeninfo *var);

extern void fb_videomode_to_var(struct fb_var_screeninfo *var,

				const struct fb_videomode *mode);

extern int fb_mode_is_equal(const struct fb_videomode *mode1,

			    const struct fb_videomode *mode2);

extern int fb_add_videomode(const struct fb_videomode *mode,

			    struct list_head *head);

extern void fb_delete_videomode(const struct fb_videomode *mode,

				struct list_head *head);

extern const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var,

						struct list_head *head);

extern const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var,

						    struct list_head *head);

extern const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode,

						       struct list_head *head);

extern void fb_destroy_modelist(struct list_head *head);

extern void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num,

				     struct list_head *head);

extern const struct fb_videomode *fb_find_best_display(const struct fb_monspecs *specs,

						       struct list_head *head);

/* drivers/video/fbcmap.c */

extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);

extern int fb_alloc_cmap_gfp(struct fb_cmap *cmap, int len, int transp, gfp_t flags);

extern void fb_dealloc_cmap(struct fb_cmap *cmap);

extern int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to);

extern int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to);

extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info);

extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info);

extern const struct fb_cmap *fb_default_cmap(int len);

extern void fb_invert_cmaps(void);

struct fb_videomode {

	const char *name;	/* optional */

	u32 refresh;		/* optional */

	u32 xres;

	u32 yres;

	u32 pixclock;

	u32 left_margin;

	u32 right_margin;

	u32 upper_margin;

	u32 lower_margin;

	u32 hsync_len;

	u32 vsync_len;

	u32 sync;

	u32 vmode;

	u32 flag;

};

struct dmt_videomode {

	u32 dmt_id;

	u32 std_2byte_code;

	u32 cvt_3byte_code;

	const struct fb_videomode *mode;

};

extern const char *fb_mode_option;

extern const struct fb_videomode vesa_modes[];

extern const struct fb_videomode cea_modes[65];

extern const struct dmt_videomode dmt_modes[];

struct fb_modelist {

	struct list_head list;

	struct fb_videomode mode;

};

extern int fb_find_mode(struct fb_var_screeninfo *var,

			struct fb_info *info, const char *mode_option,

			const struct fb_videomode *db,

			unsigned int dbsize,

			const struct fb_videomode *default_mode,

			unsigned int default_bpp);

/* Convenience logging macros */

#define fb_err(fb_info, fmt, ...)					\

	pr_err("fb%d: " fmt, (fb_info)->node, ##__VA_ARGS__)

#define fb_notice(info, fmt, ...)					\

	pr_notice("fb%d: " fmt, (fb_info)->node, ##__VA_ARGS__)

#define fb_warn(fb_info, fmt, ...)					\

	pr_warn("fb%d: " fmt, (fb_info)->node, ##__VA_ARGS__)

#define fb_info(fb_info, fmt, ...)					\

	pr_info("fb%d: " fmt, (fb_info)->node, ##__VA_ARGS__)

#define fb_dbg(fb_info, fmt, ...)					\

	pr_debug("fb%d: " fmt, (fb_info)->node, ##__VA_ARGS__)

#endif /* _LINUX_FB_H */