LXR linux/include/linux/fb.h

   1#ifndef _LINUX_FB_H
   2#define _LINUX_FB_H
   3
   4#include <asm/types.h>
   5#include <linux/i2c.h>
   6
   7struct dentry;
   8
   9/* Definitions of frame buffers                                         */
  10
  11#define FB_MAJOR                29
  12#define FB_MAX                  32      /* sufficient for now */
  13
  14/* ioctls
  15   0x46 is 'F'                                                          */
  16#define FBIOGET_VSCREENINFO     0x4600
  17#define FBIOPUT_VSCREENINFO     0x4601
  18#define FBIOGET_FSCREENINFO     0x4602
  19#define FBIOGETCMAP             0x4604
  20#define FBIOPUTCMAP             0x4605
  21#define FBIOPAN_DISPLAY         0x4606
  22#ifdef __KERNEL__
  23#define FBIO_CURSOR            _IOWR('F', 0x08, struct fb_cursor_user)
  24#else
  25#define FBIO_CURSOR            _IOWR('F', 0x08, struct fb_cursor)
  26#endif
  27/* 0x4607-0x460B are defined below */
  28/* #define FBIOGET_MONITORSPEC  0x460C */
  29/* #define FBIOPUT_MONITORSPEC  0x460D */
  30/* #define FBIOSWITCH_MONIBIT   0x460E */
  31#define FBIOGET_CON2FBMAP       0x460F
  32#define FBIOPUT_CON2FBMAP       0x4610
  33#define FBIOBLANK               0x4611          /* arg: 0 or vesa level + 1 */
  34#define FBIOGET_VBLANK          _IOR('F', 0x12, struct fb_vblank)
  35#define FBIO_ALLOC              0x4613
  36#define FBIO_FREE               0x4614
  37#define FBIOGET_GLYPH           0x4615
  38#define FBIOGET_HWCINFO         0x4616
  39#define FBIOPUT_MODEINFO        0x4617
  40#define FBIOGET_DISPINFO        0x4618
  41
  42
  43#define FB_TYPE_PACKED_PIXELS           0       /* Packed Pixels        */
  44#define FB_TYPE_PLANES                  1       /* Non interleaved planes */
  45#define FB_TYPE_INTERLEAVED_PLANES      2       /* Interleaved planes   */
  46#define FB_TYPE_TEXT                    3       /* Text/attributes      */
  47#define FB_TYPE_VGA_PLANES              4       /* EGA/VGA planes       */
  48
  49#define FB_AUX_TEXT_MDA         0       /* Monochrome text */
  50#define FB_AUX_TEXT_CGA         1       /* CGA/EGA/VGA Color text */
  51#define FB_AUX_TEXT_S3_MMIO     2       /* S3 MMIO fasttext */
  52#define FB_AUX_TEXT_MGA_STEP16  3       /* MGA Millenium I: text, attr, 14 reserved bytes */
  53#define FB_AUX_TEXT_MGA_STEP8   4       /* other MGAs:      text, attr,  6 reserved bytes */
  54#define FB_AUX_TEXT_SVGA_GROUP  8       /* 8-15: SVGA tileblit compatible modes */
  55#define FB_AUX_TEXT_SVGA_MASK   7       /* lower three bits says step */
  56#define FB_AUX_TEXT_SVGA_STEP2  8       /* SVGA text mode:  text, attr */
  57#define FB_AUX_TEXT_SVGA_STEP4  9       /* SVGA text mode:  text, attr,  2 reserved bytes */
  58#define FB_AUX_TEXT_SVGA_STEP8  10      /* SVGA text mode:  text, attr,  6 reserved bytes */
  59#define FB_AUX_TEXT_SVGA_STEP16 11      /* SVGA text mode:  text, attr, 14 reserved bytes */
  60#define FB_AUX_TEXT_SVGA_LAST   15      /* reserved up to 15 */
  61
  62#define FB_AUX_VGA_PLANES_VGA4          0       /* 16 color planes (EGA/VGA) */
  63#define FB_AUX_VGA_PLANES_CFB4          1       /* CFB4 in planes (VGA) */
  64#define FB_AUX_VGA_PLANES_CFB8          2       /* CFB8 in planes (VGA) */
  65
  66#define FB_VISUAL_MONO01                0       /* Monochr. 1=Black 0=White */
  67#define FB_VISUAL_MONO10                1       /* Monochr. 1=White 0=Black */
  68#define FB_VISUAL_TRUECOLOR             2       /* True color   */
  69#define FB_VISUAL_PSEUDOCOLOR           3       /* Pseudo color (like atari) */
  70#define FB_VISUAL_DIRECTCOLOR           4       /* Direct color */
  71#define FB_VISUAL_STATIC_PSEUDOCOLOR    5       /* Pseudo color readonly */
  72
  73#define FB_ACCEL_NONE           0       /* no hardware accelerator      */
  74#define FB_ACCEL_ATARIBLITT     1       /* Atari Blitter                */
  75#define FB_ACCEL_AMIGABLITT     2       /* Amiga Blitter                */
  76#define FB_ACCEL_S3_TRIO64      3       /* Cybervision64 (S3 Trio64)    */
  77#define FB_ACCEL_NCR_77C32BLT   4       /* RetinaZ3 (NCR 77C32BLT)      */
  78#define FB_ACCEL_S3_VIRGE       5       /* Cybervision64/3D (S3 ViRGE)  */
  79#define FB_ACCEL_ATI_MACH64GX   6       /* ATI Mach 64GX family         */
  80#define FB_ACCEL_DEC_TGA        7       /* DEC 21030 TGA                */
  81#define FB_ACCEL_ATI_MACH64CT   8       /* ATI Mach 64CT family         */
  82#define FB_ACCEL_ATI_MACH64VT   9       /* ATI Mach 64CT family VT class */
  83#define FB_ACCEL_ATI_MACH64GT   10      /* ATI Mach 64CT family GT class */
  84#define FB_ACCEL_SUN_CREATOR    11      /* Sun Creator/Creator3D        */
  85#define FB_ACCEL_SUN_CGSIX      12      /* Sun cg6                      */
  86#define FB_ACCEL_SUN_LEO        13      /* Sun leo/zx                   */
  87#define FB_ACCEL_IMS_TWINTURBO  14      /* IMS Twin Turbo               */
  88#define FB_ACCEL_3DLABS_PERMEDIA2 15    /* 3Dlabs Permedia 2            */
  89#define FB_ACCEL_MATROX_MGA2064W 16     /* Matrox MGA2064W (Millenium)  */
  90#define FB_ACCEL_MATROX_MGA1064SG 17    /* Matrox MGA1064SG (Mystique)  */
  91#define FB_ACCEL_MATROX_MGA2164W 18     /* Matrox MGA2164W (Millenium II) */
  92#define FB_ACCEL_MATROX_MGA2164W_AGP 19 /* Matrox MGA2164W (Millenium II) */
  93#define FB_ACCEL_MATROX_MGAG100 20      /* Matrox G100 (Productiva G100) */
  94#define FB_ACCEL_MATROX_MGAG200 21      /* Matrox G200 (Myst, Mill, ...) */
  95#define FB_ACCEL_SUN_CG14       22      /* Sun cgfourteen                */
  96#define FB_ACCEL_SUN_BWTWO      23      /* Sun bwtwo                    */
  97#define FB_ACCEL_SUN_CGTHREE    24      /* Sun cgthree                  */
  98#define FB_ACCEL_SUN_TCX        25      /* Sun tcx                      */
  99#define FB_ACCEL_MATROX_MGAG400 26      /* Matrox G400                  */
 100#define FB_ACCEL_NV3            27      /* nVidia RIVA 128              */
 101#define FB_ACCEL_NV4            28      /* nVidia RIVA TNT              */
 102#define FB_ACCEL_NV5            29      /* nVidia RIVA TNT2             */
 103#define FB_ACCEL_CT_6555x       30      /* C&T 6555x                    */
 104#define FB_ACCEL_3DFX_BANSHEE   31      /* 3Dfx Banshee                 */
 105#define FB_ACCEL_ATI_RAGE128    32      /* ATI Rage128 family           */
 106#define FB_ACCEL_IGS_CYBER2000  33      /* CyberPro 2000                */
 107#define FB_ACCEL_IGS_CYBER2010  34      /* CyberPro 2010                */
 108#define FB_ACCEL_IGS_CYBER5000  35      /* CyberPro 5000                */
 109#define FB_ACCEL_SIS_GLAMOUR    36      /* SiS 300/630/540              */
 110#define FB_ACCEL_3DLABS_PERMEDIA3 37    /* 3Dlabs Permedia 3            */
 111#define FB_ACCEL_ATI_RADEON     38      /* ATI Radeon family            */
 112#define FB_ACCEL_I810           39      /* Intel 810/815                */
 113#define FB_ACCEL_SIS_GLAMOUR_2  40      /* SiS 315, 650, 740            */
 114#define FB_ACCEL_SIS_XABRE      41      /* SiS 330 ("Xabre")            */
 115#define FB_ACCEL_I830           42      /* Intel 830M/845G/85x/865G     */
 116#define FB_ACCEL_NV_10          43      /* nVidia Arch 10               */
 117#define FB_ACCEL_NV_20          44      /* nVidia Arch 20               */
 118#define FB_ACCEL_NV_30          45      /* nVidia Arch 30               */
 119#define FB_ACCEL_NV_40          46      /* nVidia Arch 40               */
 120#define FB_ACCEL_XGI_VOLARI_V   47      /* XGI Volari V3XT, V5, V8      */
 121#define FB_ACCEL_XGI_VOLARI_Z   48      /* XGI Volari Z7                */
 122#define FB_ACCEL_OMAP1610       49      /* TI OMAP16xx                  */
 123#define FB_ACCEL_NEOMAGIC_NM2070 90     /* NeoMagic NM2070              */
 124#define FB_ACCEL_NEOMAGIC_NM2090 91     /* NeoMagic NM2090              */
 125#define FB_ACCEL_NEOMAGIC_NM2093 92     /* NeoMagic NM2093              */
 126#define FB_ACCEL_NEOMAGIC_NM2097 93     /* NeoMagic NM2097              */
 127#define FB_ACCEL_NEOMAGIC_NM2160 94     /* NeoMagic NM2160              */
 128#define FB_ACCEL_NEOMAGIC_NM2200 95     /* NeoMagic NM2200              */
 129#define FB_ACCEL_NEOMAGIC_NM2230 96     /* NeoMagic NM2230              */
 130#define FB_ACCEL_NEOMAGIC_NM2360 97     /* NeoMagic NM2360              */
 131#define FB_ACCEL_NEOMAGIC_NM2380 98     /* NeoMagic NM2380              */
 132
 133#define FB_ACCEL_SAVAGE4        0x80    /* S3 Savage4                   */
 134#define FB_ACCEL_SAVAGE3D       0x81    /* S3 Savage3D                  */
 135#define FB_ACCEL_SAVAGE3D_MV    0x82    /* S3 Savage3D-MV               */
 136#define FB_ACCEL_SAVAGE2000     0x83    /* S3 Savage2000                */
 137#define FB_ACCEL_SAVAGE_MX_MV   0x84    /* S3 Savage/MX-MV              */
 138#define FB_ACCEL_SAVAGE_MX      0x85    /* S3 Savage/MX                 */
 139#define FB_ACCEL_SAVAGE_IX_MV   0x86    /* S3 Savage/IX-MV              */
 140#define FB_ACCEL_SAVAGE_IX      0x87    /* S3 Savage/IX                 */
 141#define FB_ACCEL_PROSAVAGE_PM   0x88    /* S3 ProSavage PM133           */
 142#define FB_ACCEL_PROSAVAGE_KM   0x89    /* S3 ProSavage KM133           */
 143#define FB_ACCEL_S3TWISTER_P    0x8a    /* S3 Twister                   */
 144#define FB_ACCEL_S3TWISTER_K    0x8b    /* S3 TwisterK                  */
 145#define FB_ACCEL_SUPERSAVAGE    0x8c    /* S3 Supersavage               */
 146#define FB_ACCEL_PROSAVAGE_DDR  0x8d    /* S3 ProSavage DDR             */
 147#define FB_ACCEL_PROSAVAGE_DDRK 0x8e    /* S3 ProSavage DDR-K           */
 148
 149struct fb_fix_screeninfo {
 150        char id[16];                    /* identification string eg "TT Builtin" */
 151        unsigned long smem_start;       /* Start of frame buffer mem */
 152                                        /* (physical address) */
 153        __u32 smem_len;                 /* Length of frame buffer mem */
 154        __u32 type;                     /* see FB_TYPE_*                */
 155        __u32 type_aux;                 /* Interleave for interleaved Planes */
 156        __u32 visual;                   /* see FB_VISUAL_*              */ 
 157        __u16 xpanstep;                 /* zero if no hardware panning  */
 158        __u16 ypanstep;                 /* zero if no hardware panning  */
 159        __u16 ywrapstep;                /* zero if no hardware ywrap    */
 160        __u32 line_length;              /* length of a line in bytes    */
 161        unsigned long mmio_start;       /* Start of Memory Mapped I/O   */
 162                                        /* (physical address) */
 163        __u32 mmio_len;                 /* Length of Memory Mapped I/O  */
 164        __u32 accel;                    /* Indicate to driver which     */
 165                                        /*  specific chip/card we have  */
 166        __u16 reserved[3];              /* Reserved for future compatibility */
 167};
 168
 169/* Interpretation of offset for color fields: All offsets are from the right,
 170 * inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
 171 * can use the offset as right argument to <<). A pixel afterwards is a bit
 172 * stream and is written to video memory as that unmodified. This implies
 173 * big-endian byte order if bits_per_pixel is greater than 8.
 174 */
 175struct fb_bitfield {
 176        __u32 offset;                   /* beginning of bitfield        */
 177        __u32 length;                   /* length of bitfield           */
 178        __u32 msb_right;                /* != 0 : Most significant bit is */ 
 179                                        /* right */ 
 180};
 181
 182#define FB_NONSTD_HAM           1       /* Hold-And-Modify (HAM)        */
 183#define FB_NONSTD_REV_PIX_IN_B  2       /* order of pixels in each byte is reversed */
 184
 185#define FB_ACTIVATE_NOW         0       /* set values immediately (or vbl)*/
 186#define FB_ACTIVATE_NXTOPEN     1       /* activate on next open        */
 187#define FB_ACTIVATE_TEST        2       /* don't set, round up impossible */
 188#define FB_ACTIVATE_MASK       15
 189                                        /* values                       */
 190#define FB_ACTIVATE_VBL        16       /* activate values on next vbl  */
 191#define FB_CHANGE_CMAP_VBL     32       /* change colormap on vbl       */
 192#define FB_ACTIVATE_ALL        64       /* change all VCs on this fb    */
 193#define FB_ACTIVATE_FORCE     128       /* force apply even when no change*/
 194#define FB_ACTIVATE_INV_MODE  256       /* invalidate videomode */
 195
 196#define FB_ACCELF_TEXT          1       /* (OBSOLETE) see fb_info.flags and vc_mode */
 197
 198#define FB_SYNC_HOR_HIGH_ACT    1       /* horizontal sync high active  */
 199#define FB_SYNC_VERT_HIGH_ACT   2       /* vertical sync high active    */
 200#define FB_SYNC_EXT             4       /* external sync                */
 201#define FB_SYNC_COMP_HIGH_ACT   8       /* composite sync high active   */
 202#define FB_SYNC_BROADCAST       16      /* broadcast video timings      */
 203                                        /* vtotal = 144d/288n/576i => PAL  */
 204                                        /* vtotal = 121d/242n/484i => NTSC */
 205#define FB_SYNC_ON_GREEN        32      /* sync on green */
 206
 207#define FB_VMODE_NONINTERLACED  0       /* non interlaced */
 208#define FB_VMODE_INTERLACED     1       /* interlaced   */
 209#define FB_VMODE_DOUBLE         2       /* double scan */
 210#define FB_VMODE_ODD_FLD_FIRST  4       /* interlaced: top line first */
 211#define FB_VMODE_MASK           255
 212
 213#define FB_VMODE_YWRAP          256     /* ywrap instead of panning     */
 214#define FB_VMODE_SMOOTH_XPAN    512     /* smooth xpan possible (internally used) */
 215#define FB_VMODE_CONUPDATE      512     /* don't update x/yoffset       */
 216
 217/*
 218 * Display rotation support
 219 */
 220#define FB_ROTATE_UR      0
 221#define FB_ROTATE_CW      1
 222#define FB_ROTATE_UD      2
 223#define FB_ROTATE_CCW     3
 224
 225#define PICOS2KHZ(a) (1000000000UL/(a))
 226#define KHZ2PICOS(a) (1000000000UL/(a))
 227
 228struct fb_var_screeninfo {
 229        __u32 xres;                     /* visible resolution           */
 230        __u32 yres;
 231        __u32 xres_virtual;             /* virtual resolution           */
 232        __u32 yres_virtual;
 233        __u32 xoffset;                  /* offset from virtual to visible */
 234        __u32 yoffset;                  /* resolution                   */
 235
 236        __u32 bits_per_pixel;           /* guess what                   */
 237        __u32 grayscale;                /* != 0 Graylevels instead of colors */
 238
 239        struct fb_bitfield red;         /* bitfield in fb mem if true color, */
 240        struct fb_bitfield green;       /* else only length is significant */
 241        struct fb_bitfield blue;
 242        struct fb_bitfield transp;      /* transparency                 */      
 243
 244        __u32 nonstd;                   /* != 0 Non standard pixel format */
 245
 246        __u32 activate;                 /* see FB_ACTIVATE_*            */
 247
 248        __u32 height;                   /* height of picture in mm    */
 249        __u32 width;                    /* width of picture in mm     */
 250
 251        __u32 accel_flags;              /* (OBSOLETE) see fb_info.flags */
 252
 253        /* Timing: All values in pixclocks, except pixclock (of course) */
 254        __u32 pixclock;                 /* pixel clock in ps (pico seconds) */
 255        __u32 left_margin;              /* time from sync to picture    */
 256        __u32 right_margin;             /* time from picture to sync    */
 257        __u32 upper_margin;             /* time from sync to picture    */
 258        __u32 lower_margin;
 259        __u32 hsync_len;                /* length of horizontal sync    */
 260        __u32 vsync_len;                /* length of vertical sync      */
 261        __u32 sync;                     /* see FB_SYNC_*                */
 262        __u32 vmode;                    /* see FB_VMODE_*               */
 263        __u32 rotate;                   /* angle we rotate counter clockwise */
 264        __u32 reserved[5];              /* Reserved for future compatibility */
 265};
 266
 267struct fb_cmap {
 268        __u32 start;                    /* First entry  */
 269        __u32 len;                      /* Number of entries */
 270        __u16 *red;                     /* Red values   */
 271        __u16 *green;
 272        __u16 *blue;
 273        __u16 *transp;                  /* transparency, can be NULL */
 274};
 275
 276struct fb_con2fbmap {
 277        __u32 console;
 278        __u32 framebuffer;
 279};
 280
 281/* VESA Blanking Levels */
 282#define VESA_NO_BLANKING        0
 283#define VESA_VSYNC_SUSPEND      1
 284#define VESA_HSYNC_SUSPEND      2
 285#define VESA_POWERDOWN          3
 286
 287
 288enum {
 289        /* screen: unblanked, hsync: on,  vsync: on */
 290        FB_BLANK_UNBLANK       = VESA_NO_BLANKING,
 291
 292        /* screen: blanked,   hsync: on,  vsync: on */
 293        FB_BLANK_NORMAL        = VESA_NO_BLANKING + 1,
 294
 295        /* screen: blanked,   hsync: on,  vsync: off */
 296        FB_BLANK_VSYNC_SUSPEND = VESA_VSYNC_SUSPEND + 1,
 297
 298        /* screen: blanked,   hsync: off, vsync: on */
 299        FB_BLANK_HSYNC_SUSPEND = VESA_HSYNC_SUSPEND + 1,
 300
 301        /* screen: blanked,   hsync: off, vsync: off */
 302        FB_BLANK_POWERDOWN     = VESA_POWERDOWN + 1
 303};
 304
 305#define FB_VBLANK_VBLANKING     0x001   /* currently in a vertical blank */
 306#define FB_VBLANK_HBLANKING     0x002   /* currently in a horizontal blank */
 307#define FB_VBLANK_HAVE_VBLANK   0x004   /* vertical blanks can be detected */
 308#define FB_VBLANK_HAVE_HBLANK   0x008   /* horizontal blanks can be detected */
 309#define FB_VBLANK_HAVE_COUNT    0x010   /* global retrace counter is available */
 310#define FB_VBLANK_HAVE_VCOUNT   0x020   /* the vcount field is valid */
 311#define FB_VBLANK_HAVE_HCOUNT   0x040   /* the hcount field is valid */
 312#define FB_VBLANK_VSYNCING      0x080   /* currently in a vsync */
 313#define FB_VBLANK_HAVE_VSYNC    0x100   /* verical syncs can be detected */
 314
 315struct fb_vblank {
 316        __u32 flags;                    /* FB_VBLANK flags */
 317        __u32 count;                    /* counter of retraces since boot */
 318        __u32 vcount;                   /* current scanline position */
 319        __u32 hcount;                   /* current scandot position */
 320        __u32 reserved[4];              /* reserved for future compatibility */
 321};
 322
 323/* Internal HW accel */
 324#define ROP_COPY 0
 325#define ROP_XOR  1
 326
 327struct fb_copyarea {
 328        __u32 dx;
 329        __u32 dy;
 330        __u32 width;
 331        __u32 height;
 332        __u32 sx;
 333        __u32 sy;
 334};
 335
 336struct fb_fillrect {
 337        __u32 dx;       /* screen-relative */
 338        __u32 dy;
 339        __u32 width;
 340        __u32 height;
 341        __u32 color;
 342        __u32 rop;
 343};
 344
 345struct fb_image {
 346        __u32 dx;               /* Where to place image */
 347        __u32 dy;
 348        __u32 width;            /* Size of image */
 349        __u32 height;
 350        __u32 fg_color;         /* Only used when a mono bitmap */
 351        __u32 bg_color;
 352        __u8  depth;            /* Depth of the image */
 353        const char *data;       /* Pointer to image data */
 354        struct fb_cmap cmap;    /* color map info */
 355};
 356
 357/*
 358 * hardware cursor control
 359 */
 360
 361#define FB_CUR_SETIMAGE 0x01
 362#define FB_CUR_SETPOS   0x02
 363#define FB_CUR_SETHOT   0x04
 364#define FB_CUR_SETCMAP  0x08
 365#define FB_CUR_SETSHAPE 0x10
 366#define FB_CUR_SETSIZE  0x20
 367#define FB_CUR_SETALL   0xFF
 368
 369struct fbcurpos {
 370        __u16 x, y;
 371};
 372
 373struct fb_cursor {
 374        __u16 set;              /* what to set */
 375        __u16 enable;           /* cursor on/off */
 376        __u16 rop;              /* bitop operation */
 377        const char *mask;       /* cursor mask bits */
 378        struct fbcurpos hot;    /* cursor hot spot */
 379        struct fb_image image;  /* Cursor image */
 380};
 381
 382#ifdef CONFIG_FB_BACKLIGHT
 383/* Settings for the generic backlight code */
 384#define FB_BACKLIGHT_LEVELS     128
 385#define FB_BACKLIGHT_MAX        0xFF
 386#endif
 387
 388#ifdef __KERNEL__
 389
 390#include <linux/fs.h>
 391#include <linux/init.h>
 392#include <linux/device.h>
 393#include <linux/workqueue.h>
 394#include <linux/notifier.h>
 395#include <linux/list.h>
 396#include <linux/backlight.h>
 397#include <asm/io.h>
 398
 399struct vm_area_struct;
 400struct fb_info;
 401struct device;
 402struct file;
 403
 404/* Definitions below are used in the parsed monitor specs */
 405#define FB_DPMS_ACTIVE_OFF      1
 406#define FB_DPMS_SUSPEND         2
 407#define FB_DPMS_STANDBY         4
 408
 409#define FB_DISP_DDI             1
 410#define FB_DISP_ANA_700_300     2
 411#define FB_DISP_ANA_714_286     4
 412#define FB_DISP_ANA_1000_400    8
 413#define FB_DISP_ANA_700_000     16
 414
 415#define FB_DISP_MONO            32
 416#define FB_DISP_RGB             64
 417#define FB_DISP_MULTI           128
 418#define FB_DISP_UNKNOWN         256
 419
 420#define FB_SIGNAL_NONE          0
 421#define FB_SIGNAL_BLANK_BLANK   1
 422#define FB_SIGNAL_SEPARATE      2
 423#define FB_SIGNAL_COMPOSITE     4
 424#define FB_SIGNAL_SYNC_ON_GREEN 8
 425#define FB_SIGNAL_SERRATION_ON  16
 426
 427#define FB_MISC_PRIM_COLOR      1
 428#define FB_MISC_1ST_DETAIL      2       /* First Detailed Timing is preferred */
 429struct fb_chroma {
 430        __u32 redx;     /* in fraction of 1024 */
 431        __u32 greenx;
 432        __u32 bluex;
 433        __u32 whitex;
 434        __u32 redy;
 435        __u32 greeny;
 436        __u32 bluey;
 437        __u32 whitey;
 438};
 439
 440struct fb_monspecs {
 441        struct fb_chroma chroma;
 442        struct fb_videomode *modedb;    /* mode database */
 443        __u8  manufacturer[4];          /* Manufacturer */
 444        __u8  monitor[14];              /* Monitor String */
 445        __u8  serial_no[14];            /* Serial Number */
 446        __u8  ascii[14];                /* ? */
 447        __u32 modedb_len;               /* mode database length */
 448        __u32 model;                    /* Monitor Model */
 449        __u32 serial;                   /* Serial Number - Integer */
 450        __u32 year;                     /* Year manufactured */
 451        __u32 week;                     /* Week Manufactured */
 452        __u32 hfmin;                    /* hfreq lower limit (Hz) */
 453        __u32 hfmax;                    /* hfreq upper limit (Hz) */
 454        __u32 dclkmin;                  /* pixelclock lower limit (Hz) */
 455        __u32 dclkmax;                  /* pixelclock upper limit (Hz) */
 456        __u16 input;                    /* display type - see FB_DISP_* */
 457        __u16 dpms;                     /* DPMS support - see FB_DPMS_ */
 458        __u16 signal;                   /* Signal Type - see FB_SIGNAL_* */
 459        __u16 vfmin;                    /* vfreq lower limit (Hz) */
 460        __u16 vfmax;                    /* vfreq upper limit (Hz) */
 461        __u16 gamma;                    /* Gamma - in fractions of 100 */
 462        __u16 gtf       : 1;            /* supports GTF */
 463        __u16 misc;                     /* Misc flags - see FB_MISC_* */
 464        __u8  version;                  /* EDID version... */
 465        __u8  revision;                 /* ...and revision */
 466        __u8  max_x;                    /* Maximum horizontal size (cm) */
 467        __u8  max_y;                    /* Maximum vertical size (cm) */
 468};
 469
 470struct fb_cmap_user {
 471        __u32 start;                    /* First entry  */
 472        __u32 len;                      /* Number of entries */
 473        __u16 __user *red;              /* Red values   */
 474        __u16 __user *green;
 475        __u16 __user *blue;
 476        __u16 __user *transp;           /* transparency, can be NULL */
 477};
 478
 479struct fb_image_user {
 480        __u32 dx;                       /* Where to place image */
 481        __u32 dy;
 482        __u32 width;                    /* Size of image */
 483        __u32 height;
 484        __u32 fg_color;                 /* Only used when a mono bitmap */
 485        __u32 bg_color;
 486        __u8  depth;                    /* Depth of the image */
 487        const char __user *data;        /* Pointer to image data */
 488        struct fb_cmap_user cmap;       /* color map info */
 489};
 490
 491struct fb_cursor_user {
 492        __u16 set;                      /* what to set */
 493        __u16 enable;                   /* cursor on/off */
 494        __u16 rop;                      /* bitop operation */
 495        const char __user *mask;        /* cursor mask bits */
 496        struct fbcurpos hot;            /* cursor hot spot */
 497        struct fb_image_user image;     /* Cursor image */
 498};
 499
 500/*
 501 * Register/unregister for framebuffer events
 502 */
 503
 504/*      The resolution of the passed in fb_info about to change */ 
 505#define FB_EVENT_MODE_CHANGE            0x01
 506/*      The display on this fb_info is beeing suspended, no access to the
 507 *      framebuffer is allowed any more after that call returns
 508 */
 509#define FB_EVENT_SUSPEND                0x02
 510/*      The display on this fb_info was resumed, you can restore the display
 511 *      if you own it
 512 */
 513#define FB_EVENT_RESUME                 0x03
 514/*      An entry from the modelist was removed */
 515#define FB_EVENT_MODE_DELETE            0x04
 516/*      A driver registered itself */
 517#define FB_EVENT_FB_REGISTERED          0x05
 518/*      A driver unregistered itself */
 519#define FB_EVENT_FB_UNREGISTERED        0x06
 520/*      CONSOLE-SPECIFIC: get console to framebuffer mapping */
 521#define FB_EVENT_GET_CONSOLE_MAP        0x07
 522/*      CONSOLE-SPECIFIC: set console to framebuffer mapping */
 523#define FB_EVENT_SET_CONSOLE_MAP        0x08
 524/*      A hardware display blank change occured */
 525#define FB_EVENT_BLANK                  0x09
 526/*      Private modelist is to be replaced */
 527#define FB_EVENT_NEW_MODELIST           0x0A
 528/*      The resolution of the passed in fb_info about to change and
 529        all vc's should be changed         */
 530#define FB_EVENT_MODE_CHANGE_ALL        0x0B
 531/*      A software display blank change occured */
 532#define FB_EVENT_CONBLANK               0x0C
 533/*      Get drawing requirements        */
 534#define FB_EVENT_GET_REQ                0x0D
 535/*      Unbind from the console if possible */
 536#define FB_EVENT_FB_UNBIND              0x0E
 537
 538struct fb_event {
 539        struct fb_info *info;
 540        void *data;
 541};
 542
 543struct fb_blit_caps {
 544        u32 x;
 545        u32 y;
 546        u32 len;
 547        u32 flags;
 548};
 549
 550extern int fb_register_client(struct notifier_block *nb);
 551extern int fb_unregister_client(struct notifier_block *nb);
 552extern int fb_notifier_call_chain(unsigned long val, void *v);
 553/*
 554 * Pixmap structure definition
 555 *
 556 * The purpose of this structure is to translate data
 557 * from the hardware independent format of fbdev to what
 558 * format the hardware needs.
 559 */
 560
 561#define FB_PIXMAP_DEFAULT 1     /* used internally by fbcon */
 562#define FB_PIXMAP_SYSTEM  2     /* memory is in system RAM  */
 563#define FB_PIXMAP_IO      4     /* memory is iomapped       */
 564#define FB_PIXMAP_SYNC    256   /* set if GPU can DMA       */
 565
 566struct fb_pixmap {
 567        u8  *addr;              /* pointer to memory                    */
 568        u32 size;               /* size of buffer in bytes              */
 569        u32 offset;             /* current offset to buffer             */
 570        u32 buf_align;          /* byte alignment of each bitmap        */
 571        u32 scan_align;         /* alignment per scanline               */
 572        u32 access_align;       /* alignment per read/write (bits)      */
 573        u32 flags;              /* see FB_PIXMAP_*                      */
 574        u32 blit_x;             /* supported bit block dimensions (1-32)*/
 575        u32 blit_y;             /* Format: blit_x = 1 << (width - 1)    */
 576                                /*         blit_y = 1 << (height - 1)   */
 577                                /* if 0, will be set to 0xffffffff (all)*/
 578        /* access methods */
 579        void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size);
 580        void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size);
 581};
 582
 583#ifdef CONFIG_FB_DEFERRED_IO
 584struct fb_deferred_io {
 585        /* delay between mkwrite and deferred handler */
 586        unsigned long delay;
 587        struct mutex lock; /* mutex that protects the page list */
 588        struct list_head pagelist; /* list of touched pages */
 589        /* callback */
 590        void (*deferred_io)(struct fb_info *info, struct list_head *pagelist);
 591};
 592#endif
 593
 594/*
 595 * Frame buffer operations
 596 *
 597 * LOCKING NOTE: those functions must _ALL_ be called with the console
 598 * semaphore held, this is the only suitable locking mechanism we have
 599 * in 2.6. Some may be called at interrupt time at this point though.
 600 */
 601
 602struct fb_ops {
 603        /* open/release and usage marking */
 604        struct module *owner;
 605        int (*fb_open)(struct fb_info *info, int user);
 606        int (*fb_release)(struct fb_info *info, int user);
 607
 608        /* For framebuffers with strange non linear layouts or that do not
 609         * work with normal memory mapped access
 610         */
 611        ssize_t (*fb_read)(struct fb_info *info, char __user *buf,
 612                           size_t count, loff_t *ppos);
 613        ssize_t (*fb_write)(struct fb_info *info, const char __user *buf,
 614                            size_t count, loff_t *ppos);
 615
 616        /* checks var and eventually tweaks it to something supported,
 617         * DO NOT MODIFY PAR */
 618        int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
 619
 620        /* set the video mode according to info->var */
 621        int (*fb_set_par)(struct fb_info *info);
 622
 623        /* set color register */
 624        int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green,
 625                            unsigned blue, unsigned transp, struct fb_info *info);
 626
 627        /* set color registers in batch */
 628        int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info);
 629
 630        /* blank display */
 631        int (*fb_blank)(int blank, struct fb_info *info);
 632
 633        /* pan display */
 634        int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info);
 635
 636        /* Draws a rectangle */
 637        void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);
 638        /* Copy data from area to another */
 639        void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);
 640        /* Draws a image to the display */
 641        void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
 642
 643        /* Draws cursor */
 644        int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
 645
 646        /* Rotates the display */
 647        void (*fb_rotate)(struct fb_info *info, int angle);
 648
 649        /* wait for blit idle, optional */
 650        int (*fb_sync)(struct fb_info *info);
 651
 652        /* perform fb specific ioctl (optional) */
 653        int (*fb_ioctl)(struct fb_info *info, unsigned int cmd,
 654                        unsigned long arg);
 655
 656        /* Handle 32bit compat ioctl (optional) */
 657        int (*fb_compat_ioctl)(struct fb_info *info, unsigned cmd,
 658                        unsigned long arg);
 659
 660        /* perform fb specific mmap */
 661        int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma);
 662
 663        /* save current hardware state */
 664        void (*fb_save_state)(struct fb_info *info);
 665
 666        /* restore saved state */
 667        void (*fb_restore_state)(struct fb_info *info);
 668
 669        /* get capability given var */
 670        void (*fb_get_caps)(struct fb_info *info, struct fb_blit_caps *caps,
 671                            struct fb_var_screeninfo *var);
 672};
 673
 674#ifdef CONFIG_FB_TILEBLITTING
 675#define FB_TILE_CURSOR_NONE        0
 676#define FB_TILE_CURSOR_UNDERLINE   1
 677#define FB_TILE_CURSOR_LOWER_THIRD 2
 678#define FB_TILE_CURSOR_LOWER_HALF  3
 679#define FB_TILE_CURSOR_TWO_THIRDS  4
 680#define FB_TILE_CURSOR_BLOCK       5
 681
 682struct fb_tilemap {
 683        __u32 width;                /* width of each tile in pixels */
 684        __u32 height;               /* height of each tile in scanlines */
 685        __u32 depth;                /* color depth of each tile */
 686        __u32 length;               /* number of tiles in the map */
 687        const __u8 *data;           /* actual tile map: a bitmap array, packed
 688                                       to the nearest byte */
 689};
 690
 691struct fb_tilerect {
 692        __u32 sx;                   /* origin in the x-axis */
 693        __u32 sy;                   /* origin in the y-axis */
 694        __u32 width;                /* number of tiles in the x-axis */
 695        __u32 height;               /* number of tiles in the y-axis */
 696        __u32 index;                /* what tile to use: index to tile map */
 697        __u32 fg;                   /* foreground color */
 698        __u32 bg;                   /* background color */
 699        __u32 rop;                  /* raster operation */
 700};
 701
 702struct fb_tilearea {
 703        __u32 sx;                   /* source origin in the x-axis */
 704        __u32 sy;                   /* source origin in the y-axis */
 705        __u32 dx;                   /* destination origin in the x-axis */
 706        __u32 dy;                   /* destination origin in the y-axis */
 707        __u32 width;                /* number of tiles in the x-axis */
 708        __u32 height;               /* number of tiles in the y-axis */
 709};
 710
 711struct fb_tileblit {
 712        __u32 sx;                   /* origin in the x-axis */
 713        __u32 sy;                   /* origin in the y-axis */
 714        __u32 width;                /* number of tiles in the x-axis */
 715        __u32 height;               /* number of tiles in the y-axis */
 716        __u32 fg;                   /* foreground color */
 717        __u32 bg;                   /* background color */
 718        __u32 length;               /* number of tiles to draw */
 719        __u32 *indices;             /* array of indices to tile map */
 720};
 721
 722struct fb_tilecursor {
 723        __u32 sx;                   /* cursor position in the x-axis */
 724        __u32 sy;                   /* cursor position in the y-axis */
 725        __u32 mode;                 /* 0 = erase, 1 = draw */
 726        __u32 shape;                /* see FB_TILE_CURSOR_* */
 727        __u32 fg;                   /* foreground color */
 728        __u32 bg;                   /* background color */
 729};
 730
 731struct fb_tile_ops {
 732        /* set tile characteristics */
 733        void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map);
 734
 735        /* all dimensions from hereon are in terms of tiles */
 736
 737        /* move a rectangular region of tiles from one area to another*/
 738        void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area);
 739        /* fill a rectangular region with a tile */
 740        void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect);
 741        /* copy an array of tiles */
 742        void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit);
 743        /* cursor */
 744        void (*fb_tilecursor)(struct fb_info *info,
 745                              struct fb_tilecursor *cursor);
 746        /* get maximum length of the tile map */
 747        int (*fb_get_tilemax)(struct fb_info *info);
 748};
 749#endif /* CONFIG_FB_TILEBLITTING */
 750
 751/* FBINFO_* = fb_info.flags bit flags */
 752#define FBINFO_MODULE           0x0001  /* Low-level driver is a module */
 753#define FBINFO_HWACCEL_DISABLED 0x0002
 754        /* When FBINFO_HWACCEL_DISABLED is set:
 755         *  Hardware acceleration is turned off.  Software implementations
 756         *  of required functions (copyarea(), fillrect(), and imageblit())
 757         *  takes over; acceleration engine should be in a quiescent state */
 758
 759/* hints */
 760#define FBINFO_PARTIAL_PAN_OK   0x0040 /* otw use pan only for double-buffering */
 761#define FBINFO_READS_FAST       0x0080 /* soft-copy faster than rendering */
 762
 763/* hardware supported ops */
 764/*  semantics: when a bit is set, it indicates that the operation is
 765 *   accelerated by hardware.
 766 *  required functions will still work even if the bit is not set.
 767 *  optional functions may not even exist if the flag bit is not set.
 768 */
 769#define FBINFO_HWACCEL_NONE             0x0000
 770#define FBINFO_HWACCEL_COPYAREA         0x0100 /* required */
 771#define FBINFO_HWACCEL_FILLRECT         0x0200 /* required */
 772#define FBINFO_HWACCEL_IMAGEBLIT        0x0400 /* required */
 773#define FBINFO_HWACCEL_ROTATE           0x0800 /* optional */
 774#define FBINFO_HWACCEL_XPAN             0x1000 /* optional */
 775#define FBINFO_HWACCEL_YPAN             0x2000 /* optional */
 776#define FBINFO_HWACCEL_YWRAP            0x4000 /* optional */
 777
 778#define FBINFO_MISC_USEREVENT          0x10000 /* event request
 779                                                  from userspace */
 780#define FBINFO_MISC_TILEBLITTING       0x20000 /* use tile blitting */
 781
 782/* A driver may set this flag to indicate that it does want a set_par to be
 783 * called every time when fbcon_switch is executed. The advantage is that with
 784 * this flag set you can really be sure that set_par is always called before
 785 * any of the functions dependant on the correct hardware state or altering
 786 * that state, even if you are using some broken X releases. The disadvantage
 787 * is that it introduces unwanted delays to every console switch if set_par
 788 * is slow. It is a good idea to try this flag in the drivers initialization
 789 * code whenever there is a bug report related to switching between X and the
 790 * framebuffer console.
 791 */
 792#define FBINFO_MISC_ALWAYS_SETPAR   0x40000
 793
 794struct fb_info {
 795        int node;
 796        int flags;
 797        struct fb_var_screeninfo var;   /* Current var */
 798        struct fb_fix_screeninfo fix;   /* Current fix */
 799        struct fb_monspecs monspecs;    /* Current Monitor specs */
 800        struct work_struct queue;       /* Framebuffer event queue */
 801        struct fb_pixmap pixmap;        /* Image hardware mapper */
 802        struct fb_pixmap sprite;        /* Cursor hardware mapper */
 803        struct fb_cmap cmap;            /* Current cmap */
 804        struct list_head modelist;      /* mode list */
 805        struct fb_videomode *mode;      /* current mode */
 806
 807#ifdef CONFIG_FB_BACKLIGHT
 808        /* assigned backlight device */
 809        /* set before framebuffer registration, 
 810           remove after unregister */
 811        struct backlight_device *bl_dev;
 812
 813        /* Backlight level curve */
 814        struct mutex bl_curve_mutex;    
 815        u8 bl_curve[FB_BACKLIGHT_LEVELS];
 816#endif
 817#ifdef CONFIG_FB_DEFERRED_IO
 818        struct delayed_work deferred_work;
 819        struct fb_deferred_io *fbdefio;
 820#endif
 821
 822        struct fb_ops *fbops;
 823        struct device *device;          /* This is the parent */
 824        struct device *dev;             /* This is this fb device */
 825        int class_flag;                    /* private sysfs flags */
 826#ifdef CONFIG_FB_TILEBLITTING
 827        struct fb_tile_ops *tileops;    /* Tile Blitting */
 828#endif
 829        char __iomem *screen_base;      /* Virtual address */
 830        unsigned long screen_size;      /* Amount of ioremapped VRAM or 0 */ 
 831        void *pseudo_palette;           /* Fake palette of 16 colors */ 
 832#define FBINFO_STATE_RUNNING    0
 833#define FBINFO_STATE_SUSPENDED  1
 834        u32 state;                      /* Hardware state i.e suspend */
 835        void *fbcon_par;                /* fbcon use-only private area */
 836        /* From here on everything is device dependent */
 837        void *par;      
 838};
 839
 840#ifdef MODULE
 841#define FBINFO_DEFAULT  FBINFO_MODULE
 842#else
 843#define FBINFO_DEFAULT  0
 844#endif
 845
 846// This will go away
 847#define FBINFO_FLAG_MODULE      FBINFO_MODULE
 848#define FBINFO_FLAG_DEFAULT     FBINFO_DEFAULT
 849
 850/* This will go away
 851 * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags
 852 * when it wants to turn the acceleration engine on.  This is
 853 * really a separate operation, and should be modified via sysfs.
 854 *  But for now, we leave it broken with the following define
 855 */
 856#define STUPID_ACCELF_TEXT_SHIT
 857
 858// This will go away
 859#if defined(__sparc__)
 860
 861/* We map all of our framebuffers such that big-endian accesses
 862 * are what we want, so the following is sufficient.
 863 */
 864
 865// This will go away
 866#define fb_readb sbus_readb
 867#define fb_readw sbus_readw
 868#define fb_readl sbus_readl
 869#define fb_readq sbus_readq
 870#define fb_writeb sbus_writeb
 871#define fb_writew sbus_writew
 872#define fb_writel sbus_writel
 873#define fb_writeq sbus_writeq
 874#define fb_memset sbus_memset_io
 875
 876#elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || (defined(__sh__) && !defined(__SH5__)) || defined(__powerpc__) || defined(__avr32__)
 877
 878#define fb_readb __raw_readb
 879#define fb_readw __raw_readw
 880#define fb_readl __raw_readl
 881#define fb_readq __raw_readq
 882#define fb_writeb __raw_writeb
 883#define fb_writew __raw_writew
 884#define fb_writel __raw_writel
 885#define fb_writeq __raw_writeq
 886#define fb_memset memset_io
 887
 888#else
 889
 890#define fb_readb(addr) (*(volatile u8 *) (addr))
 891#define fb_readw(addr) (*(volatile u16 *) (addr))
 892#define fb_readl(addr) (*(volatile u32 *) (addr))
 893#define fb_readq(addr) (*(volatile u64 *) (addr))
 894#define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
 895#define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
 896#define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
 897#define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b))
 898#define fb_memset memset
 899
 900#endif
 901
 902#if defined (__BIG_ENDIAN)
 903#define FB_LEFT_POS(bpp)          (32 - bpp)
 904#define FB_SHIFT_HIGH(val, bits)  ((val) >> (bits))
 905#define FB_SHIFT_LOW(val, bits)   ((val) << (bits))
 906#else
 907#define FB_LEFT_POS(bpp)          (0)
 908#define FB_SHIFT_HIGH(val, bits)  ((val) << (bits))
 909#define FB_SHIFT_LOW(val, bits)   ((val) >> (bits))
 910#endif
 911
 912    /*
 913     *  `Generic' versions of the frame buffer device operations
 914     */
 915
 916extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var); 
 917extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var); 
 918extern int fb_blank(struct fb_info *info, int blank);
 919extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect); 
 920extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area); 
 921extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image);
 922/*
 923 * Drawing operations where framebuffer is in system RAM
 924 */
 925extern void sys_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
 926extern void sys_copyarea(struct fb_info *info, const struct fb_copyarea *area);
 927extern void sys_imageblit(struct fb_info *info, const struct fb_image *image);
 928extern ssize_t fb_sys_read(struct fb_info *info, char __user *buf,
 929                           size_t count, loff_t *ppos);
 930extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
 931                            size_t count, loff_t *ppos);
 932
 933/* drivers/video/fbmem.c */
 934extern int register_framebuffer(struct fb_info *fb_info);
 935extern int unregister_framebuffer(struct fb_info *fb_info);
 936extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
 937extern int fb_show_logo(struct fb_info *fb_info, int rotate);
 938extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);
 939extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx,
 940                                u32 height, u32 shift_high, u32 shift_low, u32 mod);
 941extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height);
 942extern void fb_set_suspend(struct fb_info *info, int state);
 943extern int fb_get_color_depth(struct fb_var_screeninfo *var,
 944                              struct fb_fix_screeninfo *fix);
 945extern int fb_get_options(char *name, char **option);
 946extern int fb_new_modelist(struct fb_info *info);
 947
 948extern struct fb_info *registered_fb[FB_MAX];
 949extern int num_registered_fb;
 950extern struct class *fb_class;
 951
 952static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch,
 953                                           u8 *src, u32 s_pitch, u32 height)
 954{
 955        int i, j;
 956
 957        d_pitch -= s_pitch;
 958
 959        for (i = height; i--; ) {
 960                /* s_pitch is a few bytes at the most, memcpy is suboptimal */
 961                for (j = 0; j < s_pitch; j++)
 962                        *dst++ = *src++;
 963                dst += d_pitch;
 964        }
 965}
 966
 967/* drivers/video/fb_defio.c */
 968extern void fb_deferred_io_init(struct fb_info *info);
 969extern void fb_deferred_io_cleanup(struct fb_info *info);
 970extern int fb_deferred_io_fsync(struct file *file, struct dentry *dentry,
 971                                int datasync);
 972
 973/* drivers/video/fbsysfs.c */
 974extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);
 975extern void framebuffer_release(struct fb_info *info);
 976extern int fb_init_device(struct fb_info *fb_info);
 977extern void fb_cleanup_device(struct fb_info *head);
 978extern void fb_bl_default_curve(struct fb_info *fb_info, u8 off, u8 min, u8 max);
 979
 980/* drivers/video/fbmon.c */
 981#define FB_MAXTIMINGS           0
 982#define FB_VSYNCTIMINGS         1
 983#define FB_HSYNCTIMINGS         2
 984#define FB_DCLKTIMINGS          3
 985#define FB_IGNOREMON            0x100
 986
 987#define FB_MODE_IS_UNKNOWN      0
 988#define FB_MODE_IS_DETAILED     1
 989#define FB_MODE_IS_STANDARD     2
 990#define FB_MODE_IS_VESA         4
 991#define FB_MODE_IS_CALCULATED   8
 992#define FB_MODE_IS_FIRST        16
 993#define FB_MODE_IS_FROM_VAR     32
 994
 995extern int fbmon_dpms(const struct fb_info *fb_info);
 996extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var,
 997                       struct fb_info *info);
 998extern int fb_validate_mode(const struct fb_var_screeninfo *var,
 999                            struct fb_info *info);
1000extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);

1001extern const unsigned char *fb_firmware_edid(struct device *device);
1002extern void fb_edid_to_monspecs(unsigned char *edid,
1003                                struct fb_monspecs *specs);
1004extern void fb_destroy_modedb(struct fb_videomode *modedb);
1005extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb);
1006extern unsigned char *fb_ddc_read(struct i2c_adapter *adapter);
1007
1008/* drivers/video/modedb.c */
1009#define VESA_MODEDB_SIZE 34
1010extern void fb_var_to_videomode(struct fb_videomode *mode,
1011                                const struct fb_var_screeninfo *var);
1012extern void fb_videomode_to_var(struct fb_var_screeninfo *var,
1013                                const struct fb_videomode *mode);
1014extern int fb_mode_is_equal(const struct fb_videomode *mode1,
1015                            const struct fb_videomode *mode2);
1016extern int fb_add_videomode(const struct fb_videomode *mode,
1017                            struct list_head *head);
1018extern void fb_delete_videomode(const struct fb_videomode *mode,
1019                                struct list_head *head);
1020extern const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var,
1021                                                struct list_head *head);
1022extern const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var,
1023                                                    struct list_head *head);
1024extern const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode,
1025                                                       struct list_head *head);
1026extern void fb_destroy_modelist(struct list_head *head);
1027extern void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num,
1028                                     struct list_head *head);
1029extern const struct fb_videomode *fb_find_best_display(const struct fb_monspecs *specs,
1030                                                       struct list_head *head);
1031
1032/* drivers/video/fbcmap.c */
1033extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);
1034extern void fb_dealloc_cmap(struct fb_cmap *cmap);
1035extern int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to);
1036extern int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to);
1037extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info);
1038extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info);
1039extern const struct fb_cmap *fb_default_cmap(int len);
1040extern void fb_invert_cmaps(void);
1041
1042struct fb_videomode {
1043        const char *name;       /* optional */
1044        u32 refresh;            /* optional */
1045        u32 xres;
1046        u32 yres;
1047        u32 pixclock;
1048        u32 left_margin;
1049        u32 right_margin;
1050        u32 upper_margin;
1051        u32 lower_margin;
1052        u32 hsync_len;
1053        u32 vsync_len;
1054        u32 sync;
1055        u32 vmode;
1056        u32 flag;
1057};
1058
1059extern const char *fb_mode_option;
1060extern const struct fb_videomode vesa_modes[];
1061
1062struct fb_modelist {
1063        struct list_head list;
1064        struct fb_videomode mode;
1065};
1066
1067extern int fb_find_mode(struct fb_var_screeninfo *var,
1068                        struct fb_info *info, const char *mode_option,
1069                        const struct fb_videomode *db,
1070                        unsigned int dbsize,
1071                        const struct fb_videomode *default_mode,
1072                        unsigned int default_bpp);
1073
1074#endif /* __KERNEL__ */
1075
1076#endif /* _LINUX_FB_H */
1077