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fb.h

#ifndef _LINUX_FB_H
#define _LINUX_FB_H

#include <asm/types.h>
#include <linux/i2c.h>

struct dentry;

/* Definitions of frame buffers                                   */

#define FB_MAJOR        29
#define FB_MAX                32    /* sufficient for now */

/* ioctls
   0x46 is 'F'                                              */
#define FBIOGET_VSCREENINFO   0x4600
#define FBIOPUT_VSCREENINFO   0x4601
#define FBIOGET_FSCREENINFO   0x4602
#define FBIOGETCMAP           0x4604
#define FBIOPUTCMAP           0x4605
#define FBIOPAN_DISPLAY       0x4606
#ifdef __KERNEL__
#define FBIO_CURSOR            _IOWR('F', 0x08, struct fb_cursor_user)
#else
#define FBIO_CURSOR            _IOWR('F', 0x08, struct fb_cursor)
#endif
/* 0x4607-0x460B are defined below */
/* #define FBIOGET_MONITORSPEC      0x460C */
/* #define FBIOPUT_MONITORSPEC      0x460D */
/* #define FBIOSWITCH_MONIBIT 0x460E */
#define FBIOGET_CON2FBMAP     0x460F
#define FBIOPUT_CON2FBMAP     0x4610
#define FBIOBLANK       0x4611            /* arg: 0 or vesa level + 1 */
#define FBIOGET_VBLANK        _IOR('F', 0x12, struct fb_vblank)
#define FBIO_ALLOC              0x4613
#define FBIO_FREE               0x4614
#define FBIOGET_GLYPH           0x4615
#define FBIOGET_HWCINFO         0x4616
#define FBIOPUT_MODEINFO        0x4617
#define FBIOGET_DISPINFO        0x4618


#define FB_TYPE_PACKED_PIXELS       0     /* Packed Pixels  */
#define FB_TYPE_PLANES              1     /* Non interleaved planes */
#define FB_TYPE_INTERLEAVED_PLANES  2     /* Interleaved planes   */
#define FB_TYPE_TEXT                3     /* Text/attributes      */
#define FB_TYPE_VGA_PLANES          4     /* EGA/VGA planes */

#define FB_AUX_TEXT_MDA       0     /* Monochrome text */
#define FB_AUX_TEXT_CGA       1     /* CGA/EGA/VGA Color text */
#define FB_AUX_TEXT_S3_MMIO   2     /* S3 MMIO fasttext */
#define FB_AUX_TEXT_MGA_STEP16      3     /* MGA Millenium I: text, attr, 14 reserved bytes */
#define FB_AUX_TEXT_MGA_STEP8 4     /* other MGAs:      text, attr,  6 reserved bytes */
#define FB_AUX_TEXT_SVGA_GROUP      8     /* 8-15: SVGA tileblit compatible modes */
#define FB_AUX_TEXT_SVGA_MASK 7     /* lower three bits says step */
#define FB_AUX_TEXT_SVGA_STEP2      8     /* SVGA text mode:  text, attr */
#define FB_AUX_TEXT_SVGA_STEP4      9     /* SVGA text mode:  text, attr,  2 reserved bytes */
#define FB_AUX_TEXT_SVGA_STEP8      10    /* SVGA text mode:  text, attr,  6 reserved bytes */
#define FB_AUX_TEXT_SVGA_STEP16     11    /* SVGA text mode:  text, attr, 14 reserved bytes */
#define FB_AUX_TEXT_SVGA_LAST 15    /* reserved up to 15 */

#define FB_AUX_VGA_PLANES_VGA4            0     /* 16 color planes (EGA/VGA) */
#define FB_AUX_VGA_PLANES_CFB4            1     /* CFB4 in planes (VGA) */
#define FB_AUX_VGA_PLANES_CFB8            2     /* CFB8 in planes (VGA) */

#define FB_VISUAL_MONO01            0     /* Monochr. 1=Black 0=White */
#define FB_VISUAL_MONO10            1     /* Monochr. 1=White 0=Black */
#define FB_VISUAL_TRUECOLOR         2     /* True color     */
#define FB_VISUAL_PSEUDOCOLOR       3     /* Pseudo color (like atari) */
#define FB_VISUAL_DIRECTCOLOR       4     /* Direct color */
#define FB_VISUAL_STATIC_PSEUDOCOLOR      5     /* Pseudo color readonly */

#define FB_ACCEL_NONE         0     /* no hardware accelerator    */
#define FB_ACCEL_ATARIBLITT   1     /* Atari Blitter        */
#define FB_ACCEL_AMIGABLITT   2     /* Amiga Blitter                */
#define FB_ACCEL_S3_TRIO64    3     /* Cybervision64 (S3 Trio64)    */
#define FB_ACCEL_NCR_77C32BLT 4     /* RetinaZ3 (NCR 77C32BLT)      */
#define FB_ACCEL_S3_VIRGE     5     /* Cybervision64/3D (S3 ViRGE)      */
#define FB_ACCEL_ATI_MACH64GX 6     /* ATI Mach 64GX family       */
#define FB_ACCEL_DEC_TGA      7     /* DEC 21030 TGA        */
#define FB_ACCEL_ATI_MACH64CT 8     /* ATI Mach 64CT family       */
#define FB_ACCEL_ATI_MACH64VT 9     /* ATI Mach 64CT family VT class */
#define FB_ACCEL_ATI_MACH64GT 10    /* ATI Mach 64CT family GT class */
#define FB_ACCEL_SUN_CREATOR  11    /* Sun Creator/Creator3D      */
#define FB_ACCEL_SUN_CGSIX    12    /* Sun cg6              */
#define FB_ACCEL_SUN_LEO      13    /* Sun leo/zx                 */
#define FB_ACCEL_IMS_TWINTURBO      14    /* IMS Twin Turbo       */
#define FB_ACCEL_3DLABS_PERMEDIA2 15      /* 3Dlabs Permedia 2          */
#define FB_ACCEL_MATROX_MGA2064W 16 /* Matrox MGA2064W (Millenium)      */
#define FB_ACCEL_MATROX_MGA1064SG 17      /* Matrox MGA1064SG (Mystique)      */
#define FB_ACCEL_MATROX_MGA2164W 18 /* Matrox MGA2164W (Millenium II) */
#define FB_ACCEL_MATROX_MGA2164W_AGP 19   /* Matrox MGA2164W (Millenium II) */
#define FB_ACCEL_MATROX_MGAG100     20    /* Matrox G100 (Productiva G100) */
#define FB_ACCEL_MATROX_MGAG200     21    /* Matrox G200 (Myst, Mill, ...) */
#define FB_ACCEL_SUN_CG14     22    /* Sun cgfourteen        */
#define FB_ACCEL_SUN_BWTWO    23    /* Sun bwtwo                  */
#define FB_ACCEL_SUN_CGTHREE  24    /* Sun cgthree                */
#define FB_ACCEL_SUN_TCX      25    /* Sun tcx              */
#define FB_ACCEL_MATROX_MGAG400     26    /* Matrox G400                */
#define FB_ACCEL_NV3          27    /* nVidia RIVA 128              */
#define FB_ACCEL_NV4          28    /* nVidia RIVA TNT            */
#define FB_ACCEL_NV5          29    /* nVidia RIVA TNT2           */
#define FB_ACCEL_CT_6555x     30    /* C&T 6555x                  */
#define FB_ACCEL_3DFX_BANSHEE 31    /* 3Dfx Banshee               */
#define FB_ACCEL_ATI_RAGE128  32    /* ATI Rage128 family         */
#define FB_ACCEL_IGS_CYBER2000      33    /* CyberPro 2000        */
#define FB_ACCEL_IGS_CYBER2010      34    /* CyberPro 2010        */
#define FB_ACCEL_IGS_CYBER5000      35    /* CyberPro 5000        */
#define FB_ACCEL_SIS_GLAMOUR    36  /* SiS 300/630/540              */
#define FB_ACCEL_3DLABS_PERMEDIA3 37      /* 3Dlabs Permedia 3          */
#define FB_ACCEL_ATI_RADEON   38    /* ATI Radeon family          */
#define FB_ACCEL_I810           39      /* Intel 810/815                */
#define FB_ACCEL_SIS_GLAMOUR_2  40  /* SiS 315, 650, 740          */
#define FB_ACCEL_SIS_XABRE      41  /* SiS 330 ("Xabre")          */
#define FB_ACCEL_I830           42      /* Intel 830M/845G/85x/865G     */
#define FB_ACCEL_NV_10          43      /* nVidia Arch 10               */
#define FB_ACCEL_NV_20          44      /* nVidia Arch 20               */
#define FB_ACCEL_NV_30          45      /* nVidia Arch 30               */
#define FB_ACCEL_NV_40          46      /* nVidia Arch 40               */
#define FB_ACCEL_XGI_VOLARI_V 47    /* XGI Volari V3XT, V5, V8      */
#define FB_ACCEL_XGI_VOLARI_Z 48    /* XGI Volari Z7                */
#define FB_ACCEL_OMAP1610     49    /* TI OMAP16xx                  */
#define FB_ACCEL_NEOMAGIC_NM2070 90 /* NeoMagic NM2070              */
#define FB_ACCEL_NEOMAGIC_NM2090 91 /* NeoMagic NM2090              */
#define FB_ACCEL_NEOMAGIC_NM2093 92 /* NeoMagic NM2093              */
#define FB_ACCEL_NEOMAGIC_NM2097 93 /* NeoMagic NM2097              */
#define FB_ACCEL_NEOMAGIC_NM2160 94 /* NeoMagic NM2160              */
#define FB_ACCEL_NEOMAGIC_NM2200 95 /* NeoMagic NM2200              */
#define FB_ACCEL_NEOMAGIC_NM2230 96 /* NeoMagic NM2230              */
#define FB_ACCEL_NEOMAGIC_NM2360 97 /* NeoMagic NM2360              */
#define FB_ACCEL_NEOMAGIC_NM2380 98 /* NeoMagic NM2380              */

#define FB_ACCEL_SAVAGE4        0x80      /* S3 Savage4                   */
#define FB_ACCEL_SAVAGE3D       0x81      /* S3 Savage3D                  */
#define FB_ACCEL_SAVAGE3D_MV    0x82      /* S3 Savage3D-MV               */
#define FB_ACCEL_SAVAGE2000     0x83      /* S3 Savage2000                */
#define FB_ACCEL_SAVAGE_MX_MV   0x84      /* S3 Savage/MX-MV              */
#define FB_ACCEL_SAVAGE_MX      0x85      /* S3 Savage/MX                 */
#define FB_ACCEL_SAVAGE_IX_MV   0x86      /* S3 Savage/IX-MV              */
#define FB_ACCEL_SAVAGE_IX      0x87      /* S3 Savage/IX                 */
#define FB_ACCEL_PROSAVAGE_PM   0x88      /* S3 ProSavage PM133           */
#define FB_ACCEL_PROSAVAGE_KM   0x89      /* S3 ProSavage KM133           */
#define FB_ACCEL_S3TWISTER_P    0x8a      /* S3 Twister                   */
#define FB_ACCEL_S3TWISTER_K    0x8b      /* S3 TwisterK                  */
#define FB_ACCEL_SUPERSAVAGE    0x8c    /* S3 Supersavage               */
#define FB_ACCEL_PROSAVAGE_DDR  0x8d      /* S3 ProSavage DDR             */
#define FB_ACCEL_PROSAVAGE_DDRK 0x8e      /* S3 ProSavage DDR-K           */

struct fb_fix_screeninfo {
      char id[16];                  /* identification string eg "TT Builtin" */
      unsigned long smem_start;     /* Start of frame buffer mem */
                              /* (physical address) */
      __u32 smem_len;               /* Length of frame buffer mem */
      __u32 type;             /* see FB_TYPE_*        */
      __u32 type_aux;               /* Interleave for interleaved Planes */
      __u32 visual;                 /* see FB_VISUAL_*            */ 
      __u16 xpanstep;               /* zero if no hardware panning  */
      __u16 ypanstep;               /* zero if no hardware panning  */
      __u16 ywrapstep;        /* zero if no hardware ywrap    */
      __u32 line_length;            /* length of a line in bytes    */
      unsigned long mmio_start;     /* Start of Memory Mapped I/O   */
                              /* (physical address) */
      __u32 mmio_len;               /* Length of Memory Mapped I/O  */
      __u32 accel;                  /* Indicate to driver which   */
                              /*  specific chip/card we have      */
      __u16 reserved[3];            /* Reserved for future compatibility */
};

/* Interpretation of offset for color fields: All offsets are from the right,
 * inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
 * can use the offset as right argument to <<). A pixel afterwards is a bit
 * stream and is written to video memory as that unmodified. This implies
 * big-endian byte order if bits_per_pixel is greater than 8.
 */
struct fb_bitfield {
      __u32 offset;                 /* beginning of bitfield      */
      __u32 length;                 /* length of bitfield         */
      __u32 msb_right;        /* != 0 : Most significant bit is */ 
                              /* right */ 
};

#define FB_NONSTD_HAM         1     /* Hold-And-Modify (HAM)        */
#define FB_NONSTD_REV_PIX_IN_B      2     /* order of pixels in each byte is reversed */

#define FB_ACTIVATE_NOW       0     /* set values immediately (or vbl)*/
#define FB_ACTIVATE_NXTOPEN   1     /* activate on next open      */
#define FB_ACTIVATE_TEST      2     /* don't set, round up impossible */
#define FB_ACTIVATE_MASK       15
                              /* values               */
#define FB_ACTIVATE_VBL        16   /* activate values on next vbl  */
#define FB_CHANGE_CMAP_VBL     32   /* change colormap on vbl     */
#define FB_ACTIVATE_ALL        64   /* change all VCs on this fb  */
#define FB_ACTIVATE_FORCE     128   /* force apply even when no change*/
#define FB_ACTIVATE_INV_MODE  256       /* invalidate videomode */

#define FB_ACCELF_TEXT        1     /* (OBSOLETE) see fb_info.flags and vc_mode */

#define FB_SYNC_HOR_HIGH_ACT  1     /* horizontal sync high active      */
#define FB_SYNC_VERT_HIGH_ACT 2     /* vertical sync high active  */
#define FB_SYNC_EXT           4     /* external sync        */
#define FB_SYNC_COMP_HIGH_ACT 8     /* composite sync high active   */
#define FB_SYNC_BROADCAST     16    /* broadcast video timings      */
                              /* vtotal = 144d/288n/576i => PAL  */
                              /* vtotal = 121d/242n/484i => NTSC */
#define FB_SYNC_ON_GREEN      32    /* sync on green */

#define FB_VMODE_NONINTERLACED  0   /* non interlaced */
#define FB_VMODE_INTERLACED   1     /* interlaced     */
#define FB_VMODE_DOUBLE       2     /* double scan */
#define FB_VMODE_ODD_FLD_FIRST      4     /* interlaced: top line first */
#define FB_VMODE_MASK         255

#define FB_VMODE_YWRAP        256   /* ywrap instead of panning     */
#define FB_VMODE_SMOOTH_XPAN  512   /* smooth xpan possible (internally used) */
#define FB_VMODE_CONUPDATE    512   /* don't update x/yoffset     */

/*
 * Display rotation support
 */
#define FB_ROTATE_UR      0
#define FB_ROTATE_CW      1
#define FB_ROTATE_UD      2
#define FB_ROTATE_CCW     3

#define PICOS2KHZ(a) (1000000000UL/(a))
#define KHZ2PICOS(a) (1000000000UL/(a))

struct fb_var_screeninfo {
      __u32 xres;             /* visible resolution         */
      __u32 yres;
      __u32 xres_virtual;           /* virtual resolution         */
      __u32 yres_virtual;
      __u32 xoffset;                /* offset from virtual to visible */
      __u32 yoffset;                /* resolution                 */

      __u32 bits_per_pixel;         /* guess what                 */
      __u32 grayscale;        /* != 0 Graylevels instead of colors */

      struct fb_bitfield red;       /* bitfield in fb mem if true color, */
      struct fb_bitfield green;     /* else only length is significant */
      struct fb_bitfield blue;
      struct fb_bitfield transp;    /* transparency               */    

      __u32 nonstd;                 /* != 0 Non standard pixel format */

      __u32 activate;               /* see FB_ACTIVATE_*          */

      __u32 height;                 /* height of picture in mm    */
      __u32 width;                  /* width of picture in mm     */

      __u32 accel_flags;            /* (OBSOLETE) see fb_info.flags */

      /* Timing: All values in pixclocks, except pixclock (of course) */
      __u32 pixclock;               /* pixel clock in ps (pico seconds) */
      __u32 left_margin;            /* time from sync to picture  */
      __u32 right_margin;           /* time from picture to sync  */
      __u32 upper_margin;           /* time from sync to picture  */
      __u32 lower_margin;
      __u32 hsync_len;        /* length of horizontal sync  */
      __u32 vsync_len;        /* length of vertical sync    */
      __u32 sync;             /* see FB_SYNC_*        */
      __u32 vmode;                  /* see FB_VMODE_*       */
      __u32 rotate;                 /* angle we rotate counter clockwise */
      __u32 reserved[5];            /* Reserved for future compatibility */
};

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

struct fb_con2fbmap {
      __u32 console;
      __u32 framebuffer;
};

/* VESA Blanking Levels */
#define VESA_NO_BLANKING        0
#define VESA_VSYNC_SUSPEND      1
#define VESA_HSYNC_SUSPEND      2
#define VESA_POWERDOWN          3


enum {
      /* screen: unblanked, hsync: on,  vsync: on */
      FB_BLANK_UNBLANK       = VESA_NO_BLANKING,

      /* screen: blanked,   hsync: on,  vsync: on */
      FB_BLANK_NORMAL        = VESA_NO_BLANKING + 1,

      /* screen: blanked,   hsync: on,  vsync: off */
      FB_BLANK_VSYNC_SUSPEND = VESA_VSYNC_SUSPEND + 1,

      /* screen: blanked,   hsync: off, vsync: on */
      FB_BLANK_HSYNC_SUSPEND = VESA_HSYNC_SUSPEND + 1,

      /* screen: blanked,   hsync: off, vsync: off */
      FB_BLANK_POWERDOWN     = VESA_POWERDOWN + 1
};

#define FB_VBLANK_VBLANKING   0x001 /* currently in a vertical blank */
#define FB_VBLANK_HBLANKING   0x002 /* currently in a horizontal blank */
#define FB_VBLANK_HAVE_VBLANK 0x004 /* vertical blanks can be detected */
#define FB_VBLANK_HAVE_HBLANK 0x008 /* horizontal blanks can be detected */
#define FB_VBLANK_HAVE_COUNT  0x010 /* global retrace counter is available */
#define FB_VBLANK_HAVE_VCOUNT 0x020 /* the vcount field is valid */
#define FB_VBLANK_HAVE_HCOUNT 0x040 /* the hcount field is valid */
#define FB_VBLANK_VSYNCING    0x080 /* currently in a vsync */
#define FB_VBLANK_HAVE_VSYNC  0x100 /* verical syncs can be detected */

struct fb_vblank {
      __u32 flags;                  /* FB_VBLANK flags */
      __u32 count;                  /* counter of retraces since boot */
      __u32 vcount;                 /* current scanline position */
      __u32 hcount;                 /* current scandot position */
      __u32 reserved[4];            /* reserved for future compatibility */
};

/* Internal HW accel */
#define ROP_COPY 0
#define ROP_XOR  1

struct fb_copyarea {
      __u32 dx;
      __u32 dy;
      __u32 width;
      __u32 height;
      __u32 sx;
      __u32 sy;
};

struct fb_fillrect {
      __u32 dx;   /* screen-relative */
      __u32 dy;
      __u32 width;
      __u32 height;
      __u32 color;
      __u32 rop;
};

struct fb_image {
      __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 *data; /* Pointer to image data */
      struct fb_cmap cmap;    /* color map info */
};

/*
 * hardware cursor control
 */

#define FB_CUR_SETIMAGE 0x01
#define FB_CUR_SETPOS   0x02
#define FB_CUR_SETHOT   0x04
#define FB_CUR_SETCMAP  0x08
#define FB_CUR_SETSHAPE 0x10
#define FB_CUR_SETSIZE  0x20
#define FB_CUR_SETALL   0xFF

struct fbcurpos {
      __u16 x, y;
};

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

#ifdef CONFIG_FB_BACKLIGHT
/* Settings for the generic backlight code */
#define FB_BACKLIGHT_LEVELS   128
#define FB_BACKLIGHT_MAX      0xFF
#endif

#ifdef __KERNEL__

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

struct vm_area_struct;
struct fb_info;
struct device;
struct file;

/* 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 */
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 occured */
#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 occured */
#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

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

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

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);
/*
 * 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 (*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.
 */

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);

      /* save current hardware state */
      void (*fb_save_state)(struct fb_info *info);

      /* restore saved state */
      void (*fb_restore_state)(struct fb_info *info);

      /* get capability given var */
      void (*fb_get_caps)(struct fb_info *info, struct fb_blit_caps *caps,
                      struct fb_var_screeninfo *var);
};

#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_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 dependant 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

struct fb_info {
      int node;
      int flags;
      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
      char __iomem *screen_base;    /* Virtual address */
      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;  
};

#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

#elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || (defined(__sh__) && !defined(__SH5__)) || defined(__powerpc__) || defined(__avr32__)

#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

#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

#endif

#if defined (__BIG_ENDIAN)
#define FB_LEFT_POS(bpp)          (32 - bpp)
#define FB_SHIFT_HIGH(val, bits)  ((val) >> (bits))
#define FB_SHIFT_LOW(val, bits)   ((val) << (bits))
#else
#define FB_LEFT_POS(bpp)          (0)
#define FB_SHIFT_HIGH(val, bits)  ((val) << (bits))
#define FB_SHIFT_LOW(val, bits)   ((val) >> (bits))
#endif

    /*
     *  `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 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(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;

static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch,
                                 u8 *src, u32 s_pitch, u32 height)
{
      int 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_cleanup(struct fb_info *info);
extern int fb_deferred_io_fsync(struct file *file, struct dentry *dentry,
                        int datasync);

/* 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_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);

/* drivers/video/modedb.c */
#define VESA_MODEDB_SIZE 34
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 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;
};

extern const char *fb_mode_option;
extern const struct fb_videomode vesa_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);

#endif /* __KERNEL__ */

#endif /* _LINUX_FB_H */

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