#ifndef _LINUX_FB_H
#define _LINUX_FB_H

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

struct dentry;

/* Definitions of frame buffers                                                */

#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
#define FBIO_CURSOR            _IOWR('F', 0x08, struct fb_cursor)
/* 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_TRIDENT_TGUI        50        /* Trident TGUI                        */
#define FB_ACCEL_TRIDENT_3DIMAGE 51        /* Trident 3DImage                */
#define FB_ACCEL_TRIDENT_BLADE3D 52        /* Trident Blade3D                */
#define FB_ACCEL_TRIDENT_BLADEXP 53        /* Trident BladeXP                */
#define FB_ACCEL_CIRRUS_ALPINE   53        /* Cirrus Logic 543x/544x/5480        */
#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_PXA3XX                 99        /* PXA3xx                        */

#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.
 *
 * For pseudocolor: offset and length should be the same for all color
 * components. Offset specifies the position of the least significant bit
 * of the pallette index in a pixel value. Length indicates the number
 * of available palette entries (i.e. # of entries = 1 << length).
 */
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


#endif /* _LINUX_FB_H */