include/linux/fb.h

   1 #ifndef _LINUX_FB_H
   2 #define _LINUX_FB_H
   3
   4 #include <asm/types.h>
   5
   6 /* Definitions of frame buffers                                         */
   7
   8 #define FB_MAJOR                29
   9 #define FB_MAX                  32      /* sufficient for now */
  10
  11 /* ioctls
  12    0x46 is 'F'                                                          */
  13 #define FBIOGET_VSCREENINFO     0x4600
  14 #define FBIOPUT_VSCREENINFO     0x4601
  15 #define FBIOGET_FSCREENINFO     0x4602
  16 #define FBIOGETCMAP             0x4604
  17 #define FBIOPUTCMAP             0x4605
  18 #define FBIOPAN_DISPLAY         0x4606
  19 #ifdef __KERNEL__
  20 #define FBIO_CURSOR            _IOWR('F', 0x08, struct fb_cursor_user)
  21 #else
  22 #define FBIO_CURSOR            _IOWR('F', 0x08, struct fb_cursor)
  23 #endif
  24 /* 0x4607-0x460B are defined below */
  25 /* #define FBIOGET_MONITORSPEC  0x460C */
  26 /* #define FBIOPUT_MONITORSPEC  0x460D */
  27 /* #define FBIOSWITCH_MONIBIT   0x460E */
  28 #define FBIOGET_CON2FBMAP       0x460F
  29 #define FBIOPUT_CON2FBMAP       0x4610
  30 #define FBIOBLANK               0x4611          /* arg: 0 or vesa level + 1 */
  31 #define FBIOGET_VBLANK          _IOR('F', 0x12, struct fb_vblank)
  32 #define FBIO_ALLOC              0x4613
  33 #define FBIO_FREE               0x4614
  34 #define FBIOGET_GLYPH           0x4615
  35 #define FBIOGET_HWCINFO         0x4616
  36 #define FBIOPUT_MODEINFO        0x4617
  37 #define FBIOGET_DISPINFO        0x4618
  38
  39
  40 #define FB_TYPE_PACKED_PIXELS           0       /* Packed Pixels        */
  41 #define FB_TYPE_PLANES                  1       /* Non interleaved planes */
  42 #define FB_TYPE_INTERLEAVED_PLANES      2       /* Interleaved planes   */
  43 #define FB_TYPE_TEXT                    3       /* Text/attributes      */
  44 #define FB_TYPE_VGA_PLANES              4       /* EGA/VGA planes       */
  45
  46 #define FB_AUX_TEXT_MDA         0       /* Monochrome text */
  47 #define FB_AUX_TEXT_CGA         1       /* CGA/EGA/VGA Color text */
  48 #define FB_AUX_TEXT_S3_MMIO     2       /* S3 MMIO fasttext */
  49 #define FB_AUX_TEXT_MGA_STEP16  3       /* MGA Millenium I: text, attr, 14 reserved bytes */
  50 #define FB_AUX_TEXT_MGA_STEP8   4       /* other MGAs:      text, attr,  6 reserved bytes */
  51
  52 #define FB_AUX_VGA_PLANES_VGA4          0       /* 16 color planes (EGA/VGA) */
  53 #define FB_AUX_VGA_PLANES_CFB4          1       /* CFB4 in planes (VGA) */
  54 #define FB_AUX_VGA_PLANES_CFB8          2       /* CFB8 in planes (VGA) */
  55
  56 #define FB_VISUAL_MONO01                0       /* Monochr. 1=Black 0=White */
  57 #define FB_VISUAL_MONO10                1       /* Monochr. 1=White 0=Black */
  58 #define FB_VISUAL_TRUECOLOR             2       /* True color   */
  59 #define FB_VISUAL_PSEUDOCOLOR           3       /* Pseudo color (like atari) */
  60 #define FB_VISUAL_DIRECTCOLOR           4       /* Direct color */
  61 #define FB_VISUAL_STATIC_PSEUDOCOLOR    5       /* Pseudo color readonly */
  62
  63 #define FB_ACCEL_NONE           0       /* no hardware accelerator      */
  64 #define FB_ACCEL_ATARIBLITT     1       /* Atari Blitter                */
  65 #define FB_ACCEL_AMIGABLITT     2       /* Amiga Blitter                */
  66 #define FB_ACCEL_S3_TRIO64      3       /* Cybervision64 (S3 Trio64)    */
  67 #define FB_ACCEL_NCR_77C32BLT   4       /* RetinaZ3 (NCR 77C32BLT)      */
  68 #define FB_ACCEL_S3_VIRGE       5       /* Cybervision64/3D (S3 ViRGE)  */
  69 #define FB_ACCEL_ATI_MACH64GX   6       /* ATI Mach 64GX family         */
  70 #define FB_ACCEL_DEC_TGA        7       /* DEC 21030 TGA                */
  71 #define FB_ACCEL_ATI_MACH64CT   8       /* ATI Mach 64CT family         */
  72 #define FB_ACCEL_ATI_MACH64VT   9       /* ATI Mach 64CT family VT class */
  73 #define FB_ACCEL_ATI_MACH64GT   10      /* ATI Mach 64CT family GT class */
  74 #define FB_ACCEL_SUN_CREATOR    11      /* Sun Creator/Creator3D        */
  75 #define FB_ACCEL_SUN_CGSIX      12      /* Sun cg6                      */
  76 #define FB_ACCEL_SUN_LEO        13      /* Sun leo/zx                   */
  77 #define FB_ACCEL_IMS_TWINTURBO  14      /* IMS Twin Turbo               */
  78 #define FB_ACCEL_3DLABS_PERMEDIA2 15    /* 3Dlabs Permedia 2            */
  79 #define FB_ACCEL_MATROX_MGA2064W 16     /* Matrox MGA2064W (Millenium)  */
  80 #define FB_ACCEL_MATROX_MGA1064SG 17    /* Matrox MGA1064SG (Mystique)  */
  81 #define FB_ACCEL_MATROX_MGA2164W 18     /* Matrox MGA2164W (Millenium II) */
  82 #define FB_ACCEL_MATROX_MGA2164W_AGP 19 /* Matrox MGA2164W (Millenium II) */
  83 #define FB_ACCEL_MATROX_MGAG100 20      /* Matrox G100 (Productiva G100) */
  84 #define FB_ACCEL_MATROX_MGAG200 21      /* Matrox G200 (Myst, Mill, ...) */
  85 #define FB_ACCEL_SUN_CG14       22      /* Sun cgfourteen                */
  86 #define FB_ACCEL_SUN_BWTWO      23      /* Sun bwtwo                    */
  87 #define FB_ACCEL_SUN_CGTHREE    24      /* Sun cgthree                  */
  88 #define FB_ACCEL_SUN_TCX        25      /* Sun tcx                      */
  89 #define FB_ACCEL_MATROX_MGAG400 26      /* Matrox G400                  */
  90 #define FB_ACCEL_NV3            27      /* nVidia RIVA 128              */
  91 #define FB_ACCEL_NV4            28      /* nVidia RIVA TNT              */
  92 #define FB_ACCEL_NV5            29      /* nVidia RIVA TNT2             */
  93 #define FB_ACCEL_CT_6555x       30      /* C&T 6555x                    */
  94 #define FB_ACCEL_3DFX_BANSHEE   31      /* 3Dfx Banshee                 */
  95 #define FB_ACCEL_ATI_RAGE128    32      /* ATI Rage128 family           */
  96 #define FB_ACCEL_IGS_CYBER2000  33      /* CyberPro 2000                */
  97 #define FB_ACCEL_IGS_CYBER2010  34      /* CyberPro 2010                */
  98 #define FB_ACCEL_IGS_CYBER5000  35      /* CyberPro 5000                */
  99 #define FB_ACCEL_SIS_GLAMOUR    36      /* SiS 300/630/540              */
 100 #define FB_ACCEL_3DLABS_PERMEDIA3 37    /* 3Dlabs Permedia 3            */
 101 #define FB_ACCEL_ATI_RADEON     38      /* ATI Radeon family            */
 102 #define FB_ACCEL_I810           39      /* Intel 810/815                */
 103 #define FB_ACCEL_SIS_GLAMOUR_2  40      /* SiS 315, 650, 740            */
 104 #define FB_ACCEL_SIS_XABRE      41      /* SiS 330 ("Xabre")            */
 105 #define FB_ACCEL_I830           42      /* Intel 830M/845G/85x/865G     */
 106 #define FB_ACCEL_NV_10          43      /* nVidia Arch 10               */
 107 #define FB_ACCEL_NV_20          44      /* nVidia Arch 20               */
 108 #define FB_ACCEL_NV_30          45      /* nVidia Arch 30               */
 109 #define FB_ACCEL_NV_40          46      /* nVidia Arch 40               */
 110 #define FB_ACCEL_XGI_VOLARI_V   47      /* XGI Volari V3XT, V5, V8      */
 111 #define FB_ACCEL_XGI_VOLARI_Z   48      /* XGI Volari Z7                */
 112 #define FB_ACCEL_NEOMAGIC_NM2070 90     /* NeoMagic NM2070              */
 113 #define FB_ACCEL_NEOMAGIC_NM2090 91     /* NeoMagic NM2090              */
 114 #define FB_ACCEL_NEOMAGIC_NM2093 92     /* NeoMagic NM2093              */
 115 #define FB_ACCEL_NEOMAGIC_NM2097 93     /* NeoMagic NM2097              */
 116 #define FB_ACCEL_NEOMAGIC_NM2160 94     /* NeoMagic NM2160              */
 117 #define FB_ACCEL_NEOMAGIC_NM2200 95     /* NeoMagic NM2200              */
 118 #define FB_ACCEL_NEOMAGIC_NM2230 96     /* NeoMagic NM2230              */
 119 #define FB_ACCEL_NEOMAGIC_NM2360 97     /* NeoMagic NM2360              */
 120 #define FB_ACCEL_NEOMAGIC_NM2380 98     /* NeoMagic NM2380              */
 121
 122 #define FB_ACCEL_SAVAGE4        0x80    /* S3 Savage4                   */
 123 #define FB_ACCEL_SAVAGE3D       0x81    /* S3 Savage3D                  */
 124 #define FB_ACCEL_SAVAGE3D_MV    0x82    /* S3 Savage3D-MV               */
 125 #define FB_ACCEL_SAVAGE2000     0x83    /* S3 Savage2000                */
 126 #define FB_ACCEL_SAVAGE_MX_MV   0x84    /* S3 Savage/MX-MV              */
 127 #define FB_ACCEL_SAVAGE_MX      0x85    /* S3 Savage/MX                 */
 128 #define FB_ACCEL_SAVAGE_IX_MV   0x86    /* S3 Savage/IX-MV              */
 129 #define FB_ACCEL_SAVAGE_IX      0x87    /* S3 Savage/IX                 */
 130 #define FB_ACCEL_PROSAVAGE_PM   0x88    /* S3 ProSavage PM133           */
 131 #define FB_ACCEL_PROSAVAGE_KM   0x89    /* S3 ProSavage KM133           */
 132 #define FB_ACCEL_S3TWISTER_P    0x8a    /* S3 Twister                   */
 133 #define FB_ACCEL_S3TWISTER_K    0x8b    /* S3 TwisterK                  */
 134 #define FB_ACCEL_SUPERSAVAGE    0x8c    /* S3 Supersavage               */
 135 #define FB_ACCEL_PROSAVAGE_DDR  0x8d    /* S3 ProSavage DDR             */
 136 #define FB_ACCEL_PROSAVAGE_DDRK 0x8e    /* S3 ProSavage DDR-K           */
 137
 138 struct fb_fix_screeninfo {
 139         char id[16];                    /* identification string eg "TT Builtin" */
 140         unsigned long smem_start;       /* Start of frame buffer mem */
 141                                         /* (physical address) */
 142         __u32 smem_len;                 /* Length of frame buffer mem */
 143         __u32 type;                     /* see FB_TYPE_*                */
 144         __u32 type_aux;                 /* Interleave for interleaved Planes */
 145         __u32 visual;                   /* see FB_VISUAL_*              */
 146         __u16 xpanstep;                 /* zero if no hardware panning  */
 147         __u16 ypanstep;                 /* zero if no hardware panning  */
 148         __u16 ywrapstep;                /* zero if no hardware ywrap    */
 149         __u32 line_length;              /* length of a line in bytes    */
 150         unsigned long mmio_start;       /* Start of Memory Mapped I/O   */
 151                                         /* (physical address) */
 152         __u32 mmio_len;                 /* Length of Memory Mapped I/O  */
 153         __u32 accel;                    /* Indicate to driver which     */
 154                                         /*  specific chip/card we have  */
 155         __u16 reserved[3];              /* Reserved for future compatibility */
 156 };
 157
 158 /* Interpretation of offset for color fields: All offsets are from the right,
 159  * inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
 160  * can use the offset as right argument to <<). A pixel afterwards is a bit
 161  * stream and is written to video memory as that unmodified. This implies
 162  * big-endian byte order if bits_per_pixel is greater than 8.
 163  */
 164 struct fb_bitfield {
 165         __u32 offset;                   /* beginning of bitfield        */
 166         __u32 length;                   /* length of bitfield           */
 167         __u32 msb_right;                /* != 0 : Most significant bit is */
 168                                         /* right */
 169 };
 170
 171 #define FB_NONSTD_HAM           1       /* Hold-And-Modify (HAM)        */
 172
 173 #define FB_ACTIVATE_NOW         0       /* set values immediately (or vbl)*/
 174 #define FB_ACTIVATE_NXTOPEN     1       /* activate on next open        */
 175 #define FB_ACTIVATE_TEST        2       /* don't set, round up impossible */
 176 #define FB_ACTIVATE_MASK       15
 177                                         /* values                       */
 178 #define FB_ACTIVATE_VBL        16       /* activate values on next vbl  */
 179 #define FB_CHANGE_CMAP_VBL     32       /* change colormap on vbl       */
 180 #define FB_ACTIVATE_ALL        64       /* change all VCs on this fb    */
 181 #define FB_ACTIVATE_FORCE     128       /* force apply even when no change*/
 182 #define FB_ACTIVATE_INV_MODE  256       /* invalidate videomode */
 183
 184 #define FB_ACCELF_TEXT          1       /* (OBSOLETE) see fb_info.flags and vc_mode */
 185
 186 #define FB_SYNC_HOR_HIGH_ACT    1       /* horizontal sync high active  */
 187 #define FB_SYNC_VERT_HIGH_ACT   2       /* vertical sync high active    */
 188 #define FB_SYNC_EXT             4       /* external sync                */
 189 #define FB_SYNC_COMP_HIGH_ACT   8       /* composite sync high active   */
 190 #define FB_SYNC_BROADCAST       16      /* broadcast video timings      */
 191                                         /* vtotal = 144d/288n/576i => PAL  */
 192                                         /* vtotal = 121d/242n/484i => NTSC */
 193 #define FB_SYNC_ON_GREEN        32      /* sync on green */
 194
 195 #define FB_VMODE_NONINTERLACED  0       /* non interlaced */
 196 #define FB_VMODE_INTERLACED     1       /* interlaced   */
 197 #define FB_VMODE_DOUBLE         2       /* double scan */
 198 #define FB_VMODE_MASK           255
 199
 200 #define FB_VMODE_YWRAP          256     /* ywrap instead of panning     */
 201 #define FB_VMODE_SMOOTH_XPAN    512     /* smooth xpan possible (internally used) */
 202 #define FB_VMODE_CONUPDATE      512     /* don't update x/yoffset       */
 203
 204 /*
 205  * Display rotation support
 206  */
 207 #define FB_ROTATE_UR      0
 208 #define FB_ROTATE_CW      1
 209 #define FB_ROTATE_UD      2
 210 #define FB_ROTATE_CCW     3
 211
 212 #define PICOS2KHZ(a) (1000000000UL/(a))
 213 #define KHZ2PICOS(a) (1000000000UL/(a))
 214
 215 struct fb_var_screeninfo {
 216         __u32 xres;                     /* visible resolution           */
 217         __u32 yres;
 218         __u32 xres_virtual;             /* virtual resolution           */
 219         __u32 yres_virtual;
 220         __u32 xoffset;                  /* offset from virtual to visible */
 221         __u32 yoffset;                  /* resolution                   */
 222
 223         __u32 bits_per_pixel;           /* guess what                   */
 224         __u32 grayscale;                /* != 0 Graylevels instead of colors */
 225
 226         struct fb_bitfield red;         /* bitfield in fb mem if true color, */
 227         struct fb_bitfield green;       /* else only length is significant */
 228         struct fb_bitfield blue;
 229         struct fb_bitfield transp;      /* transparency                 */
 230
 231         __u32 nonstd;                   /* != 0 Non standard pixel format */
 232
 233         __u32 activate;                 /* see FB_ACTIVATE_*            */
 234
 235         __u32 height;                   /* height of picture in mm    */
 236         __u32 width;                    /* width of picture in mm     */
 237
 238         __u32 accel_flags;              /* (OBSOLETE) see fb_info.flags */
 239
 240         /* Timing: All values in pixclocks, except pixclock (of course) */
 241         __u32 pixclock;                 /* pixel clock in ps (pico seconds) */
 242         __u32 left_margin;              /* time from sync to picture    */
 243         __u32 right_margin;             /* time from picture to sync    */
 244         __u32 upper_margin;             /* time from sync to picture    */
 245         __u32 lower_margin;
 246         __u32 hsync_len;                /* length of horizontal sync    */
 247         __u32 vsync_len;                /* length of vertical sync      */
 248         __u32 sync;                     /* see FB_SYNC_*                */
 249         __u32 vmode;                    /* see FB_VMODE_*               */
 250         __u32 rotate;                   /* angle we rotate counter clockwise */
 251         __u32 reserved[5];              /* Reserved for future compatibility */
 252 };
 253
 254 struct fb_cmap {
 255         __u32 start;                    /* First entry  */
 256         __u32 len;                      /* Number of entries */
 257         __u16 *red;                     /* Red values   */
 258         __u16 *green;
 259         __u16 *blue;
 260         __u16 *transp;                  /* transparency, can be NULL */
 261 };
 262
 263 struct fb_con2fbmap {
 264         __u32 console;
 265         __u32 framebuffer;
 266 };
 267
 268 /* VESA Blanking Levels */
 269 #define VESA_NO_BLANKING        0
 270 #define VESA_VSYNC_SUSPEND      1
 271 #define VESA_HSYNC_SUSPEND      2
 272 #define VESA_POWERDOWN          3
 273
 274
 275 enum {
 276         /* screen: unblanked, hsync: on,  vsync: on */
 277         FB_BLANK_UNBLANK       = VESA_NO_BLANKING,
 278
 279         /* screen: blanked,   hsync: on,  vsync: on */
 280         FB_BLANK_NORMAL        = VESA_NO_BLANKING + 1,
 281
 282         /* screen: blanked,   hsync: on,  vsync: off */
 283         FB_BLANK_VSYNC_SUSPEND = VESA_VSYNC_SUSPEND + 1,
 284
 285         /* screen: blanked,   hsync: off, vsync: on */
 286         FB_BLANK_HSYNC_SUSPEND = VESA_HSYNC_SUSPEND + 1,
 287
 288         /* screen: blanked,   hsync: off, vsync: off */
 289         FB_BLANK_POWERDOWN     = VESA_POWERDOWN + 1
 290 };
 291
 292 #define FB_VBLANK_VBLANKING     0x001   /* currently in a vertical blank */
 293 #define FB_VBLANK_HBLANKING     0x002   /* currently in a horizontal blank */
 294 #define FB_VBLANK_HAVE_VBLANK   0x004   /* vertical blanks can be detected */
 295 #define FB_VBLANK_HAVE_HBLANK   0x008   /* horizontal blanks can be detected */
 296 #define FB_VBLANK_HAVE_COUNT    0x010   /* global retrace counter is available */
 297 #define FB_VBLANK_HAVE_VCOUNT   0x020   /* the vcount field is valid */
 298 #define FB_VBLANK_HAVE_HCOUNT   0x040   /* the hcount field is valid */
 299 #define FB_VBLANK_VSYNCING      0x080   /* currently in a vsync */
 300 #define FB_VBLANK_HAVE_VSYNC    0x100   /* verical syncs can be detected */
 301
 302 struct fb_vblank {
 303         __u32 flags;                    /* FB_VBLANK flags */
 304         __u32 count;                    /* counter of retraces since boot */
 305         __u32 vcount;                   /* current scanline position */
 306         __u32 hcount;                   /* current scandot position */
 307         __u32 reserved[4];              /* reserved for future compatibility */
 308 };
 309
 310 /* Internal HW accel */
 311 #define ROP_COPY 0
 312 #define ROP_XOR  1
 313
 314 struct fb_copyarea {
 315         __u32 dx;
 316         __u32 dy;
 317         __u32 width;
 318         __u32 height;
 319         __u32 sx;
 320         __u32 sy;
 321 };
 322
 323 struct fb_fillrect {
 324         __u32 dx;       /* screen-relative */
 325         __u32 dy;
 326         __u32 width;
 327         __u32 height;
 328         __u32 color;
 329         __u32 rop;
 330 };
 331
 332 struct fb_image {
 333         __u32 dx;               /* Where to place image */
 334         __u32 dy;
 335         __u32 width;            /* Size of image */
 336         __u32 height;
 337         __u32 fg_color;         /* Only used when a mono bitmap */
 338         __u32 bg_color;
 339         __u8  depth;            /* Depth of the image */
 340         const char *data;       /* Pointer to image data */
 341         struct fb_cmap cmap;    /* color map info */
 342 };
 343
 344 /*
 345  * hardware cursor control
 346  */
 347
 348 #define FB_CUR_SETIMAGE 0x01
 349 #define FB_CUR_SETPOS   0x02
 350 #define FB_CUR_SETHOT   0x04
 351 #define FB_CUR_SETCMAP  0x08
 352 #define FB_CUR_SETSHAPE 0x10
 353 #define FB_CUR_SETSIZE  0x20
 354 #define FB_CUR_SETALL   0xFF
 355
 356 struct fbcurpos {
 357         __u16 x, y;
 358 };
 359
 360 struct fb_cursor {
 361         __u16 set;              /* what to set */
 362         __u16 enable;           /* cursor on/off */
 363         __u16 rop;              /* bitop operation */
 364         const char *mask;       /* cursor mask bits */
 365         struct fbcurpos hot;    /* cursor hot spot */
 366         struct fb_image image;  /* Cursor image */
 367 };
 368
 369 #ifdef __KERNEL__
 370
 371 #include <linux/fs.h>
 372 #include <linux/init.h>
 373 #include <linux/tty.h>
 374 #include <linux/device.h>
 375 #include <linux/workqueue.h>
 376 #include <linux/devfs_fs_kernel.h>
 377 #include <linux/notifier.h>
 378 #include <linux/list.h>
 379 #include <asm/io.h>
 380
 381 struct vm_area_struct;
 382 struct fb_info;
 383 struct device;
 384 struct file;
 385
 386 /* Definitions below are used in the parsed monitor specs */
 387 #define FB_DPMS_ACTIVE_OFF      1
 388 #define FB_DPMS_SUSPEND         2
 389 #define FB_DPMS_STANDBY         4
 390
 391 #define FB_DISP_DDI             1
 392 #define FB_DISP_ANA_700_300     2
 393 #define FB_DISP_ANA_714_286     4
 394 #define FB_DISP_ANA_1000_400    8
 395 #define FB_DISP_ANA_700_000     16
 396
 397 #define FB_DISP_MONO            32
 398 #define FB_DISP_RGB             64
 399 #define FB_DISP_MULTI           128
 400 #define FB_DISP_UNKNOWN         256
 401
 402 #define FB_SIGNAL_NONE          0
 403 #define FB_SIGNAL_BLANK_BLANK   1
 404 #define FB_SIGNAL_SEPARATE      2
 405 #define FB_SIGNAL_COMPOSITE     4
 406 #define FB_SIGNAL_SYNC_ON_GREEN 8
 407 #define FB_SIGNAL_SERRATION_ON  16
 408
 409 #define FB_MISC_PRIM_COLOR      1
 410 #define FB_MISC_1ST_DETAIL      2       /* First Detailed Timing is preferred */
 411 struct fb_chroma {
 412         __u32 redx;     /* in fraction of 1024 */
 413         __u32 greenx;
 414         __u32 bluex;
 415         __u32 whitex;
 416         __u32 redy;
 417         __u32 greeny;
 418         __u32 bluey;
 419         __u32 whitey;
 420 };
 421
 422 struct fb_monspecs {
 423         struct fb_chroma chroma;
 424         struct fb_videomode *modedb;    /* mode database */
 425         __u8  manufacturer[4];          /* Manufacturer */
 426         __u8  monitor[14];              /* Monitor String */
 427         __u8  serial_no[14];            /* Serial Number */
 428         __u8  ascii[14];                /* ? */
 429         __u32 modedb_len;               /* mode database length */
 430         __u32 model;                    /* Monitor Model */
 431         __u32 serial;                   /* Serial Number - Integer */
 432         __u32 year;                     /* Year manufactured */
 433         __u32 week;                     /* Week Manufactured */
 434         __u32 hfmin;                    /* hfreq lower limit (Hz) */
 435         __u32 hfmax;                    /* hfreq upper limit (Hz) */
 436         __u32 dclkmin;                  /* pixelclock lower limit (Hz) */
 437         __u32 dclkmax;                  /* pixelclock upper limit (Hz) */
 438         __u16 input;                    /* display type - see FB_DISP_* */
 439         __u16 dpms;                     /* DPMS support - see FB_DPMS_ */
 440         __u16 signal;                   /* Signal Type - see FB_SIGNAL_* */
 441         __u16 vfmin;                    /* vfreq lower limit (Hz) */
 442         __u16 vfmax;                    /* vfreq upper limit (Hz) */
 443         __u16 gamma;                    /* Gamma - in fractions of 100 */
 444         __u16 gtf       : 1;            /* supports GTF */
 445         __u16 misc;                     /* Misc flags - see FB_MISC_* */
 446         __u8  version;                  /* EDID version... */
 447         __u8  revision;                 /* ...and revision */
 448         __u8  max_x;                    /* Maximum horizontal size (cm) */
 449         __u8  max_y;                    /* Maximum vertical size (cm) */
 450 };
 451
 452 struct fb_cmap_user {
 453         __u32 start;                    /* First entry  */
 454         __u32 len;                      /* Number of entries */
 455         __u16 __user *red;              /* Red values   */
 456         __u16 __user *green;
 457         __u16 __user *blue;
 458         __u16 __user *transp;           /* transparency, can be NULL */
 459 };
 460
 461 struct fb_image_user {
 462         __u32 dx;                       /* Where to place image */
 463         __u32 dy;
 464         __u32 width;                    /* Size of image */
 465         __u32 height;
 466         __u32 fg_color;                 /* Only used when a mono bitmap */
 467         __u32 bg_color;
 468         __u8  depth;                    /* Depth of the image */
 469         const char __user *data;        /* Pointer to image data */
 470         struct fb_cmap_user cmap;       /* color map info */
 471 };
 472
 473 struct fb_cursor_user {
 474         __u16 set;                      /* what to set */
 475         __u16 enable;                   /* cursor on/off */
 476         __u16 rop;                      /* bitop operation */
 477         const char __user *mask;        /* cursor mask bits */
 478         struct fbcurpos hot;            /* cursor hot spot */
 479         struct fb_image_user image;     /* Cursor image */
 480 };
 481
 482 /*
 483  * Register/unregister for framebuffer events
 484  */
 485
 486 /*      The resolution of the passed in fb_info about to change */
 487 #define FB_EVENT_MODE_CHANGE            0x01
 488 /*      The display on this fb_info is beeing suspended, no access to the
 489  *      framebuffer is allowed any more after that call returns
 490  */
 491 #define FB_EVENT_SUSPEND                0x02
 492 /*      The display on this fb_info was resumed, you can restore the display
 493  *      if you own it
 494  */
 495 #define FB_EVENT_RESUME                 0x03
 496 /*      An entry from the modelist was removed */
 497 #define FB_EVENT_MODE_DELETE            0x04
 498 /*      A driver registered itself */
 499 #define FB_EVENT_FB_REGISTERED          0x05
 500 /*      CONSOLE-SPECIFIC: get console to framebuffer mapping */
 501 #define FB_EVENT_GET_CONSOLE_MAP        0x06
 502 /*      CONSOLE-SPECIFIC: set console to framebuffer mapping */
 503 #define FB_EVENT_SET_CONSOLE_MAP        0x07
 504 /*      A display blank is requested       */
 505 #define FB_EVENT_BLANK                  0x08
 506 /*      Private modelist is to be replaced */
 507 #define FB_EVENT_NEW_MODELIST           0x09
 508 /*      The resolution of the passed in fb_info about to change and
 509         all vc's should be changed         */
 510 #define FB_EVENT_MODE_CHANGE_ALL        0x0A
 511 /*      CONSOLE-SPECIFIC: set console rotation */
 512 #define FB_EVENT_SET_CON_ROTATE         0x0B
 513 /*      CONSOLE-SPECIFIC: get console rotation */
 514 #define FB_EVENT_GET_CON_ROTATE         0x0C
 515 /*      CONSOLE-SPECIFIC: rotate all consoles */
 516 #define FB_EVENT_SET_CON_ROTATE_ALL     0x0D
 517
 518 struct fb_event {
 519         struct fb_info *info;
 520         void *data;
 521 };
 522
 523
 524 extern int fb_register_client(struct notifier_block *nb);
 525 extern int fb_unregister_client(struct notifier_block *nb);
 526
 527 /*
 528  * Pixmap structure definition
 529  *
 530  * The purpose of this structure is to translate data
 531  * from the hardware independent format of fbdev to what
 532  * format the hardware needs.
 533  */
 534
 535 #define FB_PIXMAP_DEFAULT 1     /* used internally by fbcon */
 536 #define FB_PIXMAP_SYSTEM  2     /* memory is in system RAM  */
 537 #define FB_PIXMAP_IO      4     /* memory is iomapped       */
 538 #define FB_PIXMAP_SYNC    256   /* set if GPU can DMA       */
 539
 540 struct fb_pixmap {
 541         u8  *addr;              /* pointer to memory                    */
 542         u32 size;               /* size of buffer in bytes              */
 543         u32 offset;             /* current offset to buffer             */
 544         u32 buf_align;          /* byte alignment of each bitmap        */
 545         u32 scan_align;         /* alignment per scanline               */
 546         u32 access_align;       /* alignment per read/write (bits)      */
 547         u32 flags;              /* see FB_PIXMAP_*                      */
 548         /* access methods */
 549         void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size);
 550         void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size);
 551 };
 552
 553
 554 /*
 555  * Frame buffer operations
 556  *
 557  * LOCKING NOTE: those functions must _ALL_ be called with the console
 558  * semaphore held, this is the only suitable locking mecanism we have
 559  * in 2.6. Some may be called at interrupt time at this point though.
 560  */
 561
 562 struct fb_ops {
 563         /* open/release and usage marking */
 564         struct module *owner;
 565         int (*fb_open)(struct fb_info *info, int user);
 566         int (*fb_release)(struct fb_info *info, int user);
 567
 568         /* For framebuffers with strange non linear layouts or that do not
 569          * work with normal memory mapped access
 570          */
 571         ssize_t (*fb_read)(struct file *file, char __user *buf, size_t count, loff_t *ppos);
 572         ssize_t (*fb_write)(struct file *file, const char __user *buf, size_t count, loff_t *ppos);
 573
 574         /* checks var and eventually tweaks it to something supported,
 575          * DO NOT MODIFY PAR */
 576         int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
 577
 578         /* set the video mode according to info->var */
 579         int (*fb_set_par)(struct fb_info *info);
 580
 581         /* set color register */
 582         int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green,
 583                             unsigned blue, unsigned transp, struct fb_info *info);
 584
 585         /* set color registers in batch */
 586         int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info);
 587
 588         /* blank display */
 589         int (*fb_blank)(int blank, struct fb_info *info);
 590
 591         /* pan display */
 592         int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info);
 593
 594         /* Draws a rectangle */
 595         void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);
 596         /* Copy data from area to another */
 597         void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);
 598         /* Draws a image to the display */
 599         void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
 600
 601         /* Draws cursor */
 602         int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
 603
 604         /* Rotates the display */
 605         void (*fb_rotate)(struct fb_info *info, int angle);
 606
 607         /* wait for blit idle, optional */
 608         int (*fb_sync)(struct fb_info *info);
 609
 610         /* perform fb specific ioctl (optional) */
 611         int (*fb_ioctl)(struct fb_info *info, unsigned int cmd,
 612                         unsigned long arg);
 613
 614         /* Handle 32bit compat ioctl (optional) */
 615         int (*fb_compat_ioctl)(struct fb_info *info, unsigned cmd,
 616                         unsigned long arg);
 617
 618         /* perform fb specific mmap */
 619         int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma);
 620
 621         /* save current hardware state */
 622         void (*fb_save_state)(struct fb_info *info);
 623
 624         /* restore saved state */
 625         void (*fb_restore_state)(struct fb_info *info);
 626 };
 627
 628 #ifdef CONFIG_FB_TILEBLITTING
 629
 630 #define FB_TILE_CURSOR_NONE        0
 631 #define FB_TILE_CURSOR_UNDERLINE   1
 632 #define FB_TILE_CURSOR_LOWER_THIRD 2
 633 #define FB_TILE_CURSOR_LOWER_HALF  3
 634 #define FB_TILE_CURSOR_TWO_THIRDS  4
 635 #define FB_TILE_CURSOR_BLOCK       5
 636
 637 struct fb_tilemap {
 638         __u32 width;                /* width of each tile in pixels */
 639         __u32 height;               /* height of each tile in scanlines */
 640         __u32 depth;                /* color depth of each tile */
 641         __u32 length;               /* number of tiles in the map */
 642         const __u8 *data;           /* actual tile map: a bitmap array, packed
 643                                        to the nearest byte */
 644 };
 645
 646 struct fb_tilerect {
 647         __u32 sx;                   /* origin in the x-axis */
 648         __u32 sy;                   /* origin in the y-axis */
 649         __u32 width;                /* number of tiles in the x-axis */
 650         __u32 height;               /* number of tiles in the y-axis */
 651         __u32 index;                /* what tile to use: index to tile map */
 652         __u32 fg;                   /* foreground color */
 653         __u32 bg;                   /* background color */
 654         __u32 rop;                  /* raster operation */
 655 };
 656
 657 struct fb_tilearea {
 658         __u32 sx;                   /* source origin in the x-axis */
 659         __u32 sy;                   /* source origin in the y-axis */
 660         __u32 dx;                   /* destination origin in the x-axis */
 661         __u32 dy;                   /* destination origin in the y-axis */
 662         __u32 width;                /* number of tiles in the x-axis */
 663         __u32 height;               /* number of tiles in the y-axis */
 664 };
 665
 666 struct fb_tileblit {
 667         __u32 sx;                   /* origin in the x-axis */
 668         __u32 sy;                   /* origin in the y-axis */
 669         __u32 width;                /* number of tiles in the x-axis */
 670         __u32 height;               /* number of tiles in the y-axis */
 671         __u32 fg;                   /* foreground color */
 672         __u32 bg;                   /* background color */
 673         __u32 length;               /* number of tiles to draw */
 674         __u32 *indices;             /* array of indices to tile map */
 675 };
 676
 677 struct fb_tilecursor {
 678         __u32 sx;                   /* cursor position in the x-axis */
 679         __u32 sy;                   /* cursor position in the y-axis */
 680         __u32 mode;                 /* 0 = erase, 1 = draw */
 681         __u32 shape;                /* see FB_TILE_CURSOR_* */
 682         __u32 fg;                   /* foreground color */
 683         __u32 bg;                   /* background color */
 684 };
 685
 686 struct fb_tile_ops {
 687         /* set tile characteristics */
 688         void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map);
 689
 690         /* all dimensions from hereon are in terms of tiles */
 691
 692         /* move a rectangular region of tiles from one area to another*/
 693         void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area);
 694         /* fill a rectangular region with a tile */
 695         void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect);
 696         /* copy an array of tiles */
 697         void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit);
 698         /* cursor */
 699         void (*fb_tilecursor)(struct fb_info *info,
 700                               struct fb_tilecursor *cursor);
 701 };
 702 #endif /* CONFIG_FB_TILEBLITTING */
 703
 704 /* FBINFO_* = fb_info.flags bit flags */
 705 #define FBINFO_MODULE           0x0001  /* Low-level driver is a module */
 706 #define FBINFO_HWACCEL_DISABLED 0x0002
 707         /* When FBINFO_HWACCEL_DISABLED is set:
 708          *  Hardware acceleration is turned off.  Software implementations
 709          *  of required functions (copyarea(), fillrect(), and imageblit())
 710          *  takes over; acceleration engine should be in a quiescent state */
 711
 712 /* hints */
 713 #define FBINFO_PARTIAL_PAN_OK   0x0040 /* otw use pan only for double-buffering */
 714 #define FBINFO_READS_FAST       0x0080 /* soft-copy faster than rendering */
 715
 716 /* hardware supported ops */
 717 /*  semantics: when a bit is set, it indicates that the operation is
 718  *   accelerated by hardware.
 719  *  required functions will still work even if the bit is not set.
 720  *  optional functions may not even exist if the flag bit is not set.
 721  */
 722 #define FBINFO_HWACCEL_NONE             0x0000
 723 #define FBINFO_HWACCEL_COPYAREA         0x0100 /* required */
 724 #define FBINFO_HWACCEL_FILLRECT         0x0200 /* required */
 725 #define FBINFO_HWACCEL_IMAGEBLIT        0x0400 /* required */
 726 #define FBINFO_HWACCEL_ROTATE           0x0800 /* optional */
 727 #define FBINFO_HWACCEL_XPAN             0x1000 /* optional */
 728 #define FBINFO_HWACCEL_YPAN             0x2000 /* optional */
 729 #define FBINFO_HWACCEL_YWRAP            0x4000 /* optional */
 730
 731 #define FBINFO_MISC_USEREVENT          0x10000 /* event request
 732                                                   from userspace */
 733 #define FBINFO_MISC_TILEBLITTING       0x20000 /* use tile blitting */
 734
 735 /* A driver may set this flag to indicate that it does want a set_par to be
 736  * called every time when fbcon_switch is executed. The advantage is that with
 737  * this flag set you can really be shure that set_par is always called before
 738  * any of the functions dependant on the correct hardware state or altering
 739  * that state, even if you are using some broken X releases. The disadvantage
 740  * is that it introduces unwanted delays to every console switch if set_par
 741  * is slow. It is a good idea to try this flag in the drivers initialization
 742  * code whenever there is a bug report related to switching between X and the
 743  * framebuffer console.
 744  */
 745 #define FBINFO_MISC_ALWAYS_SETPAR   0x40000
 746
 747 struct fb_info {
 748         int node;
 749         int flags;
 750         struct fb_var_screeninfo var;   /* Current var */
 751         struct fb_fix_screeninfo fix;   /* Current fix */
 752         struct fb_monspecs monspecs;    /* Current Monitor specs */
 753         struct work_struct queue;       /* Framebuffer event queue */
 754         struct fb_pixmap pixmap;        /* Image hardware mapper */
 755         struct fb_pixmap sprite;        /* Cursor hardware mapper */
 756         struct fb_cmap cmap;            /* Current cmap */
 757         struct list_head modelist;      /* mode list */
 758         struct fb_videomode *mode;      /* current mode */
 759         struct fb_ops *fbops;
 760         struct device *device;
 761         struct class_device *class_device; /* sysfs per device attrs */
 762 #ifdef CONFIG_FB_TILEBLITTING
 763         struct fb_tile_ops *tileops;    /* Tile Blitting */
 764 #endif
 765         char __iomem *screen_base;      /* Virtual address */
 766         unsigned long screen_size;      /* Amount of ioremapped VRAM or 0 */
 767         void *pseudo_palette;           /* Fake palette of 16 colors */
 768 #define FBINFO_STATE_RUNNING    0
 769 #define FBINFO_STATE_SUSPENDED  1
 770         u32 state;                      /* Hardware state i.e suspend */
 771         void *fbcon_par;                /* fbcon use-only private area */
 772         /* From here on everything is device dependent */
 773         void *par;
 774 };
 775
 776 #ifdef MODULE
 777 #define FBINFO_DEFAULT  FBINFO_MODULE
 778 #else
 779 #define FBINFO_DEFAULT  0
 780 #endif
 781
 782 // This will go away
 783 #define FBINFO_FLAG_MODULE      FBINFO_MODULE
 784 #define FBINFO_FLAG_DEFAULT     FBINFO_DEFAULT
 785
 786 /* This will go away
 787  * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags
 788  * when it wants to turn the acceleration engine on.  This is
 789  * really a separate operation, and should be modified via sysfs.
 790  *  But for now, we leave it broken with the following define
 791  */
 792 #define STUPID_ACCELF_TEXT_SHIT
 793
 794 // This will go away
 795 #if defined(__sparc__)
 796
 797 /* We map all of our framebuffers such that big-endian accesses
 798  * are what we want, so the following is sufficient.
 799  */
 800
 801 // This will go away
 802 #define fb_readb sbus_readb
 803 #define fb_readw sbus_readw
 804 #define fb_readl sbus_readl
 805 #define fb_readq sbus_readq
 806 #define fb_writeb sbus_writeb
 807 #define fb_writew sbus_writew
 808 #define fb_writel sbus_writel
 809 #define fb_writeq sbus_writeq
 810 #define fb_memset sbus_memset_io
 811
 812 #elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || (defined(__sh__) && !defined(__SH5__)) || defined(__powerpc__)
 813
 814 #define fb_readb __raw_readb
 815 #define fb_readw __raw_readw
 816 #define fb_readl __raw_readl
 817 #define fb_readq __raw_readq
 818 #define fb_writeb __raw_writeb
 819 #define fb_writew __raw_writew
 820 #define fb_writel __raw_writel
 821 #define fb_writeq __raw_writeq
 822 #define fb_memset memset_io
 823
 824 #else
 825
 826 #define fb_readb(addr) (*(volatile u8 *) (addr))
 827 #define fb_readw(addr) (*(volatile u16 *) (addr))
 828 #define fb_readl(addr) (*(volatile u32 *) (addr))
 829 #define fb_readq(addr) (*(volatile u64 *) (addr))
 830 #define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
 831 #define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
 832 #define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
 833 #define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b))
 834 #define fb_memset memset
 835
 836 #endif
 837
 838 #if defined (__BIG_ENDIAN)
 839 #define FB_LEFT_POS(bpp)          (32 - bpp)
 840 #define FB_SHIFT_HIGH(val, bits)  ((val) >> (bits))
 841 #define FB_SHIFT_LOW(val, bits)   ((val) << (bits))
 842 #define FB_BIT_NR(b)              (7 - (b))
 843 #else
 844 #define FB_LEFT_POS(bpp)          (0)
 845 #define FB_SHIFT_HIGH(val, bits)  ((val) << (bits))
 846 #define FB_SHIFT_LOW(val, bits)   ((val) >> (bits))
 847 #define FB_BIT_NR(b)              (b)
 848 #endif
 849
 850     /*
 851      *  `Generic' versions of the frame buffer device operations
 852      */
 853
 854 extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var);
 855 extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var);
 856 extern int fb_blank(struct fb_info *info, int blank);
 857 extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
 858 extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
 859 extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image);
 860
 861 /* drivers/video/fbmem.c */
 862 extern int register_framebuffer(struct fb_info *fb_info);
 863 extern int unregister_framebuffer(struct fb_info *fb_info);
 864 extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
 865 extern int fb_show_logo(struct fb_info *fb_info, int rotate);
 866 extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);
 867 extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx,
 868                                 u32 height, u32 shift_high, u32 shift_low, u32 mod);
 869 extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height);
 870 extern void fb_set_suspend(struct fb_info *info, int state);
 871 extern int fb_get_color_depth(struct fb_var_screeninfo *var,
 872                               struct fb_fix_screeninfo *fix);
 873 extern int fb_get_options(char *name, char **option);
 874 extern int fb_new_modelist(struct fb_info *info);
 875 extern int fb_con_duit(struct fb_info *info, int event, void *data);
 876
 877 extern struct fb_info *registered_fb[FB_MAX];
 878 extern int num_registered_fb;
 879
 880 static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch,
 881                                            u8 *src, u32 s_pitch, u32 height)
 882 {
 883         int i, j;
 884
 885         d_pitch -= s_pitch;
 886
 887         for (i = height; i--; ) {
 888                 /* s_pitch is a few bytes at the most, memcpy is suboptimal */
 889                 for (j = 0; j < s_pitch; j++)
 890                         *dst++ = *src++;
 891                 dst += d_pitch;
 892         }
 893 }
 894
 895 /* drivers/video/fbsysfs.c */
 896 extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);
 897 extern void framebuffer_release(struct fb_info *info);
 898 extern int fb_init_class_device(struct fb_info *fb_info);
 899 extern void fb_cleanup_class_device(struct fb_info *head);
 900
 901 /* drivers/video/fbmon.c */
 902 #define FB_MAXTIMINGS           0
 903 #define FB_VSYNCTIMINGS         1
 904 #define FB_HSYNCTIMINGS         2
 905 #define FB_DCLKTIMINGS          3
 906 #define FB_IGNOREMON            0x100
 907
 908 #define FB_MODE_IS_UNKNOWN      0
 909 #define FB_MODE_IS_DETAILED     1
 910 #define FB_MODE_IS_STANDARD     2
 911 #define FB_MODE_IS_VESA         4
 912 #define FB_MODE_IS_CALCULATED   8
 913 #define FB_MODE_IS_FIRST        16
 914 #define FB_MODE_IS_FROM_VAR     32
 915
 916 extern int fbmon_valid_timings(u_int pixclock, u_int htotal, u_int vtotal,
 917                                const struct fb_info *fb_info);
 918 extern int fbmon_dpms(const struct fb_info *fb_info);
 919 extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var,
 920                        struct fb_info *info);
 921 extern int fb_validate_mode(const struct fb_var_screeninfo *var,
 922                             struct fb_info *info);
 923 extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);
 924 extern const unsigned char *fb_firmware_edid(struct device *device);
 925 extern void fb_edid_to_monspecs(unsigned char *edid,
 926                                 struct fb_monspecs *specs);
 927 extern void fb_destroy_modedb(struct fb_videomode *modedb);
 928 extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb);
 929
 930 /* drivers/video/modedb.c */
 931 #define VESA_MODEDB_SIZE 34
 932 extern void fb_var_to_videomode(struct fb_videomode *mode,
 933                                 struct fb_var_screeninfo *var);
 934 extern void fb_videomode_to_var(struct fb_var_screeninfo *var,
 935                                 struct fb_videomode *mode);
 936 extern int fb_mode_is_equal(struct fb_videomode *mode1,
 937                             struct fb_videomode *mode2);
 938 extern int fb_add_videomode(struct fb_videomode *mode, struct list_head *head);
 939 extern void fb_delete_videomode(struct fb_videomode *mode,
 940                                 struct list_head *head);
 941 extern struct fb_videomode *fb_match_mode(struct fb_var_screeninfo *var,
 942                                           struct list_head *head);
 943 extern struct fb_videomode *fb_find_best_mode(struct fb_var_screeninfo *var,
 944                                               struct list_head *head);
 945 extern struct fb_videomode *fb_find_nearest_mode(struct fb_videomode *mode,
 946                                                  struct list_head *head);
 947 extern void fb_destroy_modelist(struct list_head *head);
 948 extern void fb_videomode_to_modelist(struct fb_videomode *modedb, int num,
 949                                      struct list_head *head);
 950 extern struct fb_videomode *fb_find_best_display(struct fb_monspecs *specs,
 951                                                  struct list_head *head);
 952
 953 /* drivers/video/fbcmap.c */
 954 extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);
 955 extern void fb_dealloc_cmap(struct fb_cmap *cmap);
 956 extern int fb_copy_cmap(struct fb_cmap *from, struct fb_cmap *to);
 957 extern int fb_cmap_to_user(struct fb_cmap *from, struct fb_cmap_user *to);
 958 extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info);
 959 extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info);
 960 extern struct fb_cmap *fb_default_cmap(int len);
 961 extern void fb_invert_cmaps(void);
 962
 963 struct fb_videomode {
 964         const char *name;       /* optional */
 965         u32 refresh;            /* optional */
 966         u32 xres;
 967         u32 yres;
 968         u32 pixclock;
 969         u32 left_margin;
 970         u32 right_margin;
 971         u32 upper_margin;
 972         u32 lower_margin;
 973         u32 hsync_len;
 974         u32 vsync_len;
 975         u32 sync;
 976         u32 vmode;
 977         u32 flag;
 978 };
 979
 980 extern const struct fb_videomode vesa_modes[];
 981
 982 struct fb_modelist {
 983         struct list_head list;
 984         struct fb_videomode mode;
 985 };
 986
 987 extern int fb_find_mode(struct fb_var_screeninfo *var,
 988                         struct fb_info *info, const char *mode_option,
 989                         const struct fb_videomode *db,
 990                         unsigned int dbsize,
 991                         const struct fb_videomode *default_mode,
 992                         unsigned int default_bpp);
 993
 994 #endif /* __KERNEL__ */
 995
 996 #endif /* _LINUX_FB_H */