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
   7 /* Definitions of frame buffers                                         */
   8
   9 #define FB_MAJOR                29
  10 #define FB_MAX                  32      /* sufficient for now */
  11
  12 /* ioctls
  13    0x46 is 'F'                                                          */
  14 #define FBIOGET_VSCREENINFO     0x4600
  15 #define FBIOPUT_VSCREENINFO     0x4601
  16 #define FBIOGET_FSCREENINFO     0x4602
  17 #define FBIOGETCMAP             0x4604
  18 #define FBIOPUTCMAP             0x4605
  19 #define FBIOPAN_DISPLAY         0x4606
  20 #ifdef __KERNEL__
  21 #define FBIO_CURSOR            _IOWR('F', 0x08, struct fb_cursor_user)
  22 #else
  23 #define FBIO_CURSOR            _IOWR('F', 0x08, struct fb_cursor)
  24 #endif
  25 /* 0x4607-0x460B are defined below */
  26 /* #define FBIOGET_MONITORSPEC  0x460C */
  27 /* #define FBIOPUT_MONITORSPEC  0x460D */
  28 /* #define FBIOSWITCH_MONIBIT   0x460E */
  29 #define FBIOGET_CON2FBMAP       0x460F
  30 #define FBIOPUT_CON2FBMAP       0x4610
  31 #define FBIOBLANK               0x4611          /* arg: 0 or vesa level + 1 */
  32 #define FBIOGET_VBLANK          _IOR('F', 0x12, struct fb_vblank)
  33 #define FBIO_ALLOC              0x4613
  34 #define FBIO_FREE               0x4614
  35 #define FBIOGET_GLYPH           0x4615
  36 #define FBIOGET_HWCINFO         0x4616
  37 #define FBIOPUT_MODEINFO        0x4617
  38 #define FBIOGET_DISPINFO        0x4618
  39
  40
  41 #define FB_TYPE_PACKED_PIXELS           0       /* Packed Pixels        */
  42 #define FB_TYPE_PLANES                  1       /* Non interleaved planes */
  43 #define FB_TYPE_INTERLEAVED_PLANES      2       /* Interleaved planes   */
  44 #define FB_TYPE_TEXT                    3       /* Text/attributes      */
  45 #define FB_TYPE_VGA_PLANES              4       /* EGA/VGA planes       */
  46
  47 #define FB_AUX_TEXT_MDA         0       /* Monochrome text */
  48 #define FB_AUX_TEXT_CGA         1       /* CGA/EGA/VGA Color text */
  49 #define FB_AUX_TEXT_S3_MMIO     2       /* S3 MMIO fasttext */
  50 #define FB_AUX_TEXT_MGA_STEP16  3       /* MGA Millenium I: text, attr, 14 reserved bytes */
  51 #define FB_AUX_TEXT_MGA_STEP8   4       /* other MGAs:      text, attr,  6 reserved bytes */
  52 #define FB_AUX_TEXT_SVGA_GROUP  8       /* 8-15: SVGA tileblit compatible modes */
  53 #define FB_AUX_TEXT_SVGA_MASK   7       /* lower three bits says step */
  54 #define FB_AUX_TEXT_SVGA_STEP2  8       /* SVGA text mode:  text, attr */
  55 #define FB_AUX_TEXT_SVGA_STEP4  9       /* SVGA text mode:  text, attr,  2 reserved bytes */
  56 #define FB_AUX_TEXT_SVGA_STEP8  10      /* SVGA text mode:  text, attr,  6 reserved bytes */
  57 #define FB_AUX_TEXT_SVGA_STEP16 11      /* SVGA text mode:  text, attr, 14 reserved bytes */
  58 #define FB_AUX_TEXT_SVGA_LAST   15      /* reserved up to 15 */
  59
  60 #define FB_AUX_VGA_PLANES_VGA4          0       /* 16 color planes (EGA/VGA) */
  61 #define FB_AUX_VGA_PLANES_CFB4          1       /* CFB4 in planes (VGA) */
  62 #define FB_AUX_VGA_PLANES_CFB8          2       /* CFB8 in planes (VGA) */
  63
  64 #define FB_VISUAL_MONO01                0       /* Monochr. 1=Black 0=White */
  65 #define FB_VISUAL_MONO10                1       /* Monochr. 1=White 0=Black */
  66 #define FB_VISUAL_TRUECOLOR             2       /* True color   */
  67 #define FB_VISUAL_PSEUDOCOLOR           3       /* Pseudo color (like atari) */
  68 #define FB_VISUAL_DIRECTCOLOR           4       /* Direct color */
  69 #define FB_VISUAL_STATIC_PSEUDOCOLOR    5       /* Pseudo color readonly */
  70
  71 #define FB_ACCEL_NONE           0       /* no hardware accelerator      */
  72 #define FB_ACCEL_ATARIBLITT     1       /* Atari Blitter                */
  73 #define FB_ACCEL_AMIGABLITT     2       /* Amiga Blitter                */
  74 #define FB_ACCEL_S3_TRIO64      3       /* Cybervision64 (S3 Trio64)    */
  75 #define FB_ACCEL_NCR_77C32BLT   4       /* RetinaZ3 (NCR 77C32BLT)      */
  76 #define FB_ACCEL_S3_VIRGE       5       /* Cybervision64/3D (S3 ViRGE)  */
  77 #define FB_ACCEL_ATI_MACH64GX   6       /* ATI Mach 64GX family         */
  78 #define FB_ACCEL_DEC_TGA        7       /* DEC 21030 TGA                */
  79 #define FB_ACCEL_ATI_MACH64CT   8       /* ATI Mach 64CT family         */
  80 #define FB_ACCEL_ATI_MACH64VT   9       /* ATI Mach 64CT family VT class */
  81 #define FB_ACCEL_ATI_MACH64GT   10      /* ATI Mach 64CT family GT class */
  82 #define FB_ACCEL_SUN_CREATOR    11      /* Sun Creator/Creator3D        */
  83 #define FB_ACCEL_SUN_CGSIX      12      /* Sun cg6                      */
  84 #define FB_ACCEL_SUN_LEO        13      /* Sun leo/zx                   */
  85 #define FB_ACCEL_IMS_TWINTURBO  14      /* IMS Twin Turbo               */
  86 #define FB_ACCEL_3DLABS_PERMEDIA2 15    /* 3Dlabs Permedia 2            */
  87 #define FB_ACCEL_MATROX_MGA2064W 16     /* Matrox MGA2064W (Millenium)  */
  88 #define FB_ACCEL_MATROX_MGA1064SG 17    /* Matrox MGA1064SG (Mystique)  */
  89 #define FB_ACCEL_MATROX_MGA2164W 18     /* Matrox MGA2164W (Millenium II) */
  90 #define FB_ACCEL_MATROX_MGA2164W_AGP 19 /* Matrox MGA2164W (Millenium II) */
  91 #define FB_ACCEL_MATROX_MGAG100 20      /* Matrox G100 (Productiva G100) */
  92 #define FB_ACCEL_MATROX_MGAG200 21      /* Matrox G200 (Myst, Mill, ...) */
  93 #define FB_ACCEL_SUN_CG14       22      /* Sun cgfourteen                */
  94 #define FB_ACCEL_SUN_BWTWO      23      /* Sun bwtwo                    */
  95 #define FB_ACCEL_SUN_CGTHREE    24      /* Sun cgthree                  */
  96 #define FB_ACCEL_SUN_TCX        25      /* Sun tcx                      */
  97 #define FB_ACCEL_MATROX_MGAG400 26      /* Matrox G400                  */
  98 #define FB_ACCEL_NV3            27      /* nVidia RIVA 128              */
  99 #define FB_ACCEL_NV4            28      /* nVidia RIVA TNT              */
 100 #define FB_ACCEL_NV5            29      /* nVidia RIVA TNT2             */
 101 #define FB_ACCEL_CT_6555x       30      /* C&T 6555x                    */
 102 #define FB_ACCEL_3DFX_BANSHEE   31      /* 3Dfx Banshee                 */
 103 #define FB_ACCEL_ATI_RAGE128    32      /* ATI Rage128 family           */
 104 #define FB_ACCEL_IGS_CYBER2000  33      /* CyberPro 2000                */
 105 #define FB_ACCEL_IGS_CYBER2010  34      /* CyberPro 2010                */
 106 #define FB_ACCEL_IGS_CYBER5000  35      /* CyberPro 5000                */
 107 #define FB_ACCEL_SIS_GLAMOUR    36      /* SiS 300/630/540              */
 108 #define FB_ACCEL_3DLABS_PERMEDIA3 37    /* 3Dlabs Permedia 3            */
 109 #define FB_ACCEL_ATI_RADEON     38      /* ATI Radeon family            */
 110 #define FB_ACCEL_I810           39      /* Intel 810/815                */
 111 #define FB_ACCEL_SIS_GLAMOUR_2  40      /* SiS 315, 650, 740            */
 112 #define FB_ACCEL_SIS_XABRE      41      /* SiS 330 ("Xabre")            */
 113 #define FB_ACCEL_I830           42      /* Intel 830M/845G/85x/865G     */
 114 #define FB_ACCEL_NV_10          43      /* nVidia Arch 10               */
 115 #define FB_ACCEL_NV_20          44      /* nVidia Arch 20               */
 116 #define FB_ACCEL_NV_30          45      /* nVidia Arch 30               */
 117 #define FB_ACCEL_NV_40          46      /* nVidia Arch 40               */
 118 #define FB_ACCEL_XGI_VOLARI_V   47      /* XGI Volari V3XT, V5, V8      */
 119 #define FB_ACCEL_XGI_VOLARI_Z   48      /* XGI Volari Z7                */
 120 #define FB_ACCEL_NEOMAGIC_NM2070 90     /* NeoMagic NM2070              */
 121 #define FB_ACCEL_NEOMAGIC_NM2090 91     /* NeoMagic NM2090              */
 122 #define FB_ACCEL_NEOMAGIC_NM2093 92     /* NeoMagic NM2093              */
 123 #define FB_ACCEL_NEOMAGIC_NM2097 93     /* NeoMagic NM2097              */
 124 #define FB_ACCEL_NEOMAGIC_NM2160 94     /* NeoMagic NM2160              */
 125 #define FB_ACCEL_NEOMAGIC_NM2200 95     /* NeoMagic NM2200              */
 126 #define FB_ACCEL_NEOMAGIC_NM2230 96     /* NeoMagic NM2230              */
 127 #define FB_ACCEL_NEOMAGIC_NM2360 97     /* NeoMagic NM2360              */
 128 #define FB_ACCEL_NEOMAGIC_NM2380 98     /* NeoMagic NM2380              */
 129
 130 #define FB_ACCEL_SAVAGE4        0x80    /* S3 Savage4                   */
 131 #define FB_ACCEL_SAVAGE3D       0x81    /* S3 Savage3D                  */
 132 #define FB_ACCEL_SAVAGE3D_MV    0x82    /* S3 Savage3D-MV               */
 133 #define FB_ACCEL_SAVAGE2000     0x83    /* S3 Savage2000                */
 134 #define FB_ACCEL_SAVAGE_MX_MV   0x84    /* S3 Savage/MX-MV              */
 135 #define FB_ACCEL_SAVAGE_MX      0x85    /* S3 Savage/MX                 */
 136 #define FB_ACCEL_SAVAGE_IX_MV   0x86    /* S3 Savage/IX-MV              */
 137 #define FB_ACCEL_SAVAGE_IX      0x87    /* S3 Savage/IX                 */
 138 #define FB_ACCEL_PROSAVAGE_PM   0x88    /* S3 ProSavage PM133           */
 139 #define FB_ACCEL_PROSAVAGE_KM   0x89    /* S3 ProSavage KM133           */
 140 #define FB_ACCEL_S3TWISTER_P    0x8a    /* S3 Twister                   */
 141 #define FB_ACCEL_S3TWISTER_K    0x8b    /* S3 TwisterK                  */
 142 #define FB_ACCEL_SUPERSAVAGE    0x8c    /* S3 Supersavage               */
 143 #define FB_ACCEL_PROSAVAGE_DDR  0x8d    /* S3 ProSavage DDR             */
 144 #define FB_ACCEL_PROSAVAGE_DDRK 0x8e    /* S3 ProSavage DDR-K           */
 145
 146 struct fb_fix_screeninfo {
 147         char id[16];                    /* identification string eg "TT Builtin" */
 148         unsigned long smem_start;       /* Start of frame buffer mem */
 149                                         /* (physical address) */
 150         __u32 smem_len;                 /* Length of frame buffer mem */
 151         __u32 type;                     /* see FB_TYPE_*                */
 152         __u32 type_aux;                 /* Interleave for interleaved Planes */
 153         __u32 visual;                   /* see FB_VISUAL_*              */
 154         __u16 xpanstep;                 /* zero if no hardware panning  */
 155         __u16 ypanstep;                 /* zero if no hardware panning  */
 156         __u16 ywrapstep;                /* zero if no hardware ywrap    */
 157         __u32 line_length;              /* length of a line in bytes    */
 158         unsigned long mmio_start;       /* Start of Memory Mapped I/O   */
 159                                         /* (physical address) */
 160         __u32 mmio_len;                 /* Length of Memory Mapped I/O  */
 161         __u32 accel;                    /* Indicate to driver which     */
 162                                         /*  specific chip/card we have  */
 163         __u16 reserved[3];              /* Reserved for future compatibility */
 164 };
 165
 166 /* Interpretation of offset for color fields: All offsets are from the right,
 167  * inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
 168  * can use the offset as right argument to <<). A pixel afterwards is a bit
 169  * stream and is written to video memory as that unmodified. This implies
 170  * big-endian byte order if bits_per_pixel is greater than 8.
 171  */
 172 struct fb_bitfield {
 173         __u32 offset;                   /* beginning of bitfield        */
 174         __u32 length;                   /* length of bitfield           */
 175         __u32 msb_right;                /* != 0 : Most significant bit is */
 176                                         /* right */
 177 };
 178
 179 #define FB_NONSTD_HAM           1       /* Hold-And-Modify (HAM)        */
 180
 181 #define FB_ACTIVATE_NOW         0       /* set values immediately (or vbl)*/
 182 #define FB_ACTIVATE_NXTOPEN     1       /* activate on next open        */
 183 #define FB_ACTIVATE_TEST        2       /* don't set, round up impossible */
 184 #define FB_ACTIVATE_MASK       15
 185                                         /* values                       */
 186 #define FB_ACTIVATE_VBL        16       /* activate values on next vbl  */
 187 #define FB_CHANGE_CMAP_VBL     32       /* change colormap on vbl       */
 188 #define FB_ACTIVATE_ALL        64       /* change all VCs on this fb    */
 189 #define FB_ACTIVATE_FORCE     128       /* force apply even when no change*/
 190 #define FB_ACTIVATE_INV_MODE  256       /* invalidate videomode */
 191
 192 #define FB_ACCELF_TEXT          1       /* (OBSOLETE) see fb_info.flags and vc_mode */
 193
 194 #define FB_SYNC_HOR_HIGH_ACT    1       /* horizontal sync high active  */
 195 #define FB_SYNC_VERT_HIGH_ACT   2       /* vertical sync high active    */
 196 #define FB_SYNC_EXT             4       /* external sync                */
 197 #define FB_SYNC_COMP_HIGH_ACT   8       /* composite sync high active   */
 198 #define FB_SYNC_BROADCAST       16      /* broadcast video timings      */
 199                                         /* vtotal = 144d/288n/576i => PAL  */
 200                                         /* vtotal = 121d/242n/484i => NTSC */
 201 #define FB_SYNC_ON_GREEN        32      /* sync on green */
 202
 203 #define FB_VMODE_NONINTERLACED  0       /* non interlaced */
 204 #define FB_VMODE_INTERLACED     1       /* interlaced   */
 205 #define FB_VMODE_DOUBLE         2       /* double scan */
 206 #define FB_VMODE_MASK           255
 207
 208 #define FB_VMODE_YWRAP          256     /* ywrap instead of panning     */
 209 #define FB_VMODE_SMOOTH_XPAN    512     /* smooth xpan possible (internally used) */
 210 #define FB_VMODE_CONUPDATE      512     /* don't update x/yoffset       */
 211
 212 /*
 213  * Display rotation support
 214  */
 215 #define FB_ROTATE_UR      0
 216 #define FB_ROTATE_CW      1
 217 #define FB_ROTATE_UD      2
 218 #define FB_ROTATE_CCW     3
 219
 220 #define PICOS2KHZ(a) (1000000000UL/(a))
 221 #define KHZ2PICOS(a) (1000000000UL/(a))
 222
 223 struct fb_var_screeninfo {
 224         __u32 xres;                     /* visible resolution           */
 225         __u32 yres;
 226         __u32 xres_virtual;             /* virtual resolution           */
 227         __u32 yres_virtual;
 228         __u32 xoffset;                  /* offset from virtual to visible */
 229         __u32 yoffset;                  /* resolution                   */
 230
 231         __u32 bits_per_pixel;           /* guess what                   */
 232         __u32 grayscale;                /* != 0 Graylevels instead of colors */
 233
 234         struct fb_bitfield red;         /* bitfield in fb mem if true color, */
 235         struct fb_bitfield green;       /* else only length is significant */
 236         struct fb_bitfield blue;
 237         struct fb_bitfield transp;      /* transparency                 */
 238
 239         __u32 nonstd;                   /* != 0 Non standard pixel format */
 240
 241         __u32 activate;                 /* see FB_ACTIVATE_*            */
 242
 243         __u32 height;                   /* height of picture in mm    */
 244         __u32 width;                    /* width of picture in mm     */
 245
 246         __u32 accel_flags;              /* (OBSOLETE) see fb_info.flags */
 247
 248         /* Timing: All values in pixclocks, except pixclock (of course) */
 249         __u32 pixclock;                 /* pixel clock in ps (pico seconds) */
 250         __u32 left_margin;              /* time from sync to picture    */
 251         __u32 right_margin;             /* time from picture to sync    */
 252         __u32 upper_margin;             /* time from sync to picture    */
 253         __u32 lower_margin;
 254         __u32 hsync_len;                /* length of horizontal sync    */
 255         __u32 vsync_len;                /* length of vertical sync      */
 256         __u32 sync;                     /* see FB_SYNC_*                */
 257         __u32 vmode;                    /* see FB_VMODE_*               */
 258         __u32 rotate;                   /* angle we rotate counter clockwise */
 259         __u32 reserved[5];              /* Reserved for future compatibility */
 260 };
 261
 262 struct fb_cmap {
 263         __u32 start;                    /* First entry  */
 264         __u32 len;                      /* Number of entries */
 265         __u16 *red;                     /* Red values   */
 266         __u16 *green;
 267         __u16 *blue;
 268         __u16 *transp;                  /* transparency, can be NULL */
 269 };
 270
 271 struct fb_con2fbmap {
 272         __u32 console;
 273         __u32 framebuffer;
 274 };
 275
 276 /* VESA Blanking Levels */
 277 #define VESA_NO_BLANKING        0
 278 #define VESA_VSYNC_SUSPEND      1
 279 #define VESA_HSYNC_SUSPEND      2
 280 #define VESA_POWERDOWN          3
 281
 282
 283 enum {
 284         /* screen: unblanked, hsync: on,  vsync: on */
 285         FB_BLANK_UNBLANK       = VESA_NO_BLANKING,
 286
 287         /* screen: blanked,   hsync: on,  vsync: on */
 288         FB_BLANK_NORMAL        = VESA_NO_BLANKING + 1,
 289
 290         /* screen: blanked,   hsync: on,  vsync: off */
 291         FB_BLANK_VSYNC_SUSPEND = VESA_VSYNC_SUSPEND + 1,
 292
 293         /* screen: blanked,   hsync: off, vsync: on */
 294         FB_BLANK_HSYNC_SUSPEND = VESA_HSYNC_SUSPEND + 1,
 295
 296         /* screen: blanked,   hsync: off, vsync: off */
 297         FB_BLANK_POWERDOWN     = VESA_POWERDOWN + 1
 298 };
 299
 300 #define FB_VBLANK_VBLANKING     0x001   /* currently in a vertical blank */
 301 #define FB_VBLANK_HBLANKING     0x002   /* currently in a horizontal blank */
 302 #define FB_VBLANK_HAVE_VBLANK   0x004   /* vertical blanks can be detected */
 303 #define FB_VBLANK_HAVE_HBLANK   0x008   /* horizontal blanks can be detected */
 304 #define FB_VBLANK_HAVE_COUNT    0x010   /* global retrace counter is available */
 305 #define FB_VBLANK_HAVE_VCOUNT   0x020   /* the vcount field is valid */
 306 #define FB_VBLANK_HAVE_HCOUNT   0x040   /* the hcount field is valid */
 307 #define FB_VBLANK_VSYNCING      0x080   /* currently in a vsync */
 308 #define FB_VBLANK_HAVE_VSYNC    0x100   /* verical syncs can be detected */
 309
 310 struct fb_vblank {
 311         __u32 flags;                    /* FB_VBLANK flags */
 312         __u32 count;                    /* counter of retraces since boot */
 313         __u32 vcount;                   /* current scanline position */
 314         __u32 hcount;                   /* current scandot position */
 315         __u32 reserved[4];              /* reserved for future compatibility */
 316 };
 317
 318 /* Internal HW accel */
 319 #define ROP_COPY 0
 320 #define ROP_XOR  1
 321
 322 struct fb_copyarea {
 323         __u32 dx;
 324         __u32 dy;
 325         __u32 width;
 326         __u32 height;
 327         __u32 sx;
 328         __u32 sy;
 329 };
 330
 331 struct fb_fillrect {
 332         __u32 dx;       /* screen-relative */
 333         __u32 dy;
 334         __u32 width;
 335         __u32 height;
 336         __u32 color;
 337         __u32 rop;
 338 };
 339
 340 struct fb_image {
 341         __u32 dx;               /* Where to place image */
 342         __u32 dy;
 343         __u32 width;            /* Size of image */
 344         __u32 height;
 345         __u32 fg_color;         /* Only used when a mono bitmap */
 346         __u32 bg_color;
 347         __u8  depth;            /* Depth of the image */
 348         const char *data;       /* Pointer to image data */
 349         struct fb_cmap cmap;    /* color map info */
 350 };
 351
 352 /*
 353  * hardware cursor control
 354  */
 355
 356 #define FB_CUR_SETIMAGE 0x01
 357 #define FB_CUR_SETPOS   0x02
 358 #define FB_CUR_SETHOT   0x04
 359 #define FB_CUR_SETCMAP  0x08
 360 #define FB_CUR_SETSHAPE 0x10
 361 #define FB_CUR_SETSIZE  0x20
 362 #define FB_CUR_SETALL   0xFF
 363
 364 struct fbcurpos {
 365         __u16 x, y;
 366 };
 367
 368 struct fb_cursor {
 369         __u16 set;              /* what to set */
 370         __u16 enable;           /* cursor on/off */
 371         __u16 rop;              /* bitop operation */
 372         const char *mask;       /* cursor mask bits */
 373         struct fbcurpos hot;    /* cursor hot spot */
 374         struct fb_image image;  /* Cursor image */
 375 };
 376
 377 #ifdef CONFIG_FB_BACKLIGHT
 378 /* Settings for the generic backlight code */
 379 #define FB_BACKLIGHT_LEVELS     128
 380 #define FB_BACKLIGHT_MAX        0xFF
 381 #endif
 382
 383 #ifdef __KERNEL__
 384
 385 #include <linux/fs.h>
 386 #include <linux/init.h>
 387 #include <linux/device.h>
 388 #include <linux/workqueue.h>
 389 #include <linux/notifier.h>
 390 #include <linux/list.h>
 391 #include <linux/backlight.h>
 392 #include <asm/io.h>
 393
 394 struct vm_area_struct;
 395 struct fb_info;
 396 struct device;
 397 struct file;
 398
 399 /* Definitions below are used in the parsed monitor specs */
 400 #define FB_DPMS_ACTIVE_OFF      1
 401 #define FB_DPMS_SUSPEND         2
 402 #define FB_DPMS_STANDBY         4
 403
 404 #define FB_DISP_DDI             1
 405 #define FB_DISP_ANA_700_300     2
 406 #define FB_DISP_ANA_714_286     4
 407 #define FB_DISP_ANA_1000_400    8
 408 #define FB_DISP_ANA_700_000     16
 409
 410 #define FB_DISP_MONO            32
 411 #define FB_DISP_RGB             64
 412 #define FB_DISP_MULTI           128
 413 #define FB_DISP_UNKNOWN         256
 414
 415 #define FB_SIGNAL_NONE          0
 416 #define FB_SIGNAL_BLANK_BLANK   1
 417 #define FB_SIGNAL_SEPARATE      2
 418 #define FB_SIGNAL_COMPOSITE     4
 419 #define FB_SIGNAL_SYNC_ON_GREEN 8
 420 #define FB_SIGNAL_SERRATION_ON  16
 421
 422 #define FB_MISC_PRIM_COLOR      1
 423 #define FB_MISC_1ST_DETAIL      2       /* First Detailed Timing is preferred */
 424 struct fb_chroma {
 425         __u32 redx;     /* in fraction of 1024 */
 426         __u32 greenx;
 427         __u32 bluex;
 428         __u32 whitex;
 429         __u32 redy;
 430         __u32 greeny;
 431         __u32 bluey;
 432         __u32 whitey;
 433 };
 434
 435 struct fb_monspecs {
 436         struct fb_chroma chroma;
 437         struct fb_videomode *modedb;    /* mode database */
 438         __u8  manufacturer[4];          /* Manufacturer */
 439         __u8  monitor[14];              /* Monitor String */
 440         __u8  serial_no[14];            /* Serial Number */
 441         __u8  ascii[14];                /* ? */
 442         __u32 modedb_len;               /* mode database length */
 443         __u32 model;                    /* Monitor Model */
 444         __u32 serial;                   /* Serial Number - Integer */
 445         __u32 year;                     /* Year manufactured */
 446         __u32 week;                     /* Week Manufactured */
 447         __u32 hfmin;                    /* hfreq lower limit (Hz) */
 448         __u32 hfmax;                    /* hfreq upper limit (Hz) */
 449         __u32 dclkmin;                  /* pixelclock lower limit (Hz) */
 450         __u32 dclkmax;                  /* pixelclock upper limit (Hz) */
 451         __u16 input;                    /* display type - see FB_DISP_* */
 452         __u16 dpms;                     /* DPMS support - see FB_DPMS_ */
 453         __u16 signal;                   /* Signal Type - see FB_SIGNAL_* */
 454         __u16 vfmin;                    /* vfreq lower limit (Hz) */
 455         __u16 vfmax;                    /* vfreq upper limit (Hz) */
 456         __u16 gamma;                    /* Gamma - in fractions of 100 */
 457         __u16 gtf       : 1;            /* supports GTF */
 458         __u16 misc;                     /* Misc flags - see FB_MISC_* */
 459         __u8  version;                  /* EDID version... */
 460         __u8  revision;                 /* ...and revision */
 461         __u8  max_x;                    /* Maximum horizontal size (cm) */
 462         __u8  max_y;                    /* Maximum vertical size (cm) */
 463 };
 464
 465 struct fb_cmap_user {
 466         __u32 start;                    /* First entry  */
 467         __u32 len;                      /* Number of entries */
 468         __u16 __user *red;              /* Red values   */
 469         __u16 __user *green;
 470         __u16 __user *blue;
 471         __u16 __user *transp;           /* transparency, can be NULL */
 472 };
 473
 474 struct fb_image_user {
 475         __u32 dx;                       /* Where to place image */
 476         __u32 dy;
 477         __u32 width;                    /* Size of image */
 478         __u32 height;
 479         __u32 fg_color;                 /* Only used when a mono bitmap */
 480         __u32 bg_color;
 481         __u8  depth;                    /* Depth of the image */
 482         const char __user *data;        /* Pointer to image data */
 483         struct fb_cmap_user cmap;       /* color map info */
 484 };
 485
 486 struct fb_cursor_user {
 487         __u16 set;                      /* what to set */
 488         __u16 enable;                   /* cursor on/off */
 489         __u16 rop;                      /* bitop operation */
 490         const char __user *mask;        /* cursor mask bits */
 491         struct fbcurpos hot;            /* cursor hot spot */
 492         struct fb_image_user image;     /* Cursor image */
 493 };
 494
 495 /*
 496  * Register/unregister for framebuffer events
 497  */
 498
 499 /*      The resolution of the passed in fb_info about to change */
 500 #define FB_EVENT_MODE_CHANGE            0x01
 501 /*      The display on this fb_info is beeing suspended, no access to the
 502  *      framebuffer is allowed any more after that call returns
 503  */
 504 #define FB_EVENT_SUSPEND                0x02
 505 /*      The display on this fb_info was resumed, you can restore the display
 506  *      if you own it
 507  */
 508 #define FB_EVENT_RESUME                 0x03
 509 /*      An entry from the modelist was removed */
 510 #define FB_EVENT_MODE_DELETE            0x04
 511 /*      A driver registered itself */
 512 #define FB_EVENT_FB_REGISTERED          0x05
 513 /*      A driver unregistered itself */
 514 #define FB_EVENT_FB_UNREGISTERED        0x06
 515 /*      CONSOLE-SPECIFIC: get console to framebuffer mapping */
 516 #define FB_EVENT_GET_CONSOLE_MAP        0x07
 517 /*      CONSOLE-SPECIFIC: set console to framebuffer mapping */
 518 #define FB_EVENT_SET_CONSOLE_MAP        0x08
 519 /*      A display blank is requested       */
 520 #define FB_EVENT_BLANK                  0x09
 521 /*      Private modelist is to be replaced */
 522 #define FB_EVENT_NEW_MODELIST           0x0A
 523 /*      The resolution of the passed in fb_info about to change and
 524         all vc's should be changed         */
 525 #define FB_EVENT_MODE_CHANGE_ALL        0x0B
 526
 527 struct fb_event {
 528         struct fb_info *info;
 529         void *data;
 530 };
 531
 532
 533 extern int fb_register_client(struct notifier_block *nb);
 534 extern int fb_unregister_client(struct notifier_block *nb);
 535 extern int fb_notifier_call_chain(unsigned long val, void *v);
 536 /*
 537  * Pixmap structure definition
 538  *
 539  * The purpose of this structure is to translate data
 540  * from the hardware independent format of fbdev to what
 541  * format the hardware needs.
 542  */
 543
 544 #define FB_PIXMAP_DEFAULT 1     /* used internally by fbcon */
 545 #define FB_PIXMAP_SYSTEM  2     /* memory is in system RAM  */
 546 #define FB_PIXMAP_IO      4     /* memory is iomapped       */
 547 #define FB_PIXMAP_SYNC    256   /* set if GPU can DMA       */
 548
 549 struct fb_pixmap {
 550         u8  *addr;              /* pointer to memory                    */
 551         u32 size;               /* size of buffer in bytes              */
 552         u32 offset;             /* current offset to buffer             */
 553         u32 buf_align;          /* byte alignment of each bitmap        */
 554         u32 scan_align;         /* alignment per scanline               */
 555         u32 access_align;       /* alignment per read/write (bits)      */
 556         u32 flags;              /* see FB_PIXMAP_*                      */
 557         /* access methods */
 558         void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size);
 559         void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size);
 560 };
 561
 562
 563 /*
 564  * Frame buffer operations
 565  *
 566  * LOCKING NOTE: those functions must _ALL_ be called with the console
 567  * semaphore held, this is the only suitable locking mechanism we have
 568  * in 2.6. Some may be called at interrupt time at this point though.
 569  */
 570
 571 struct fb_ops {
 572         /* open/release and usage marking */
 573         struct module *owner;
 574         int (*fb_open)(struct fb_info *info, int user);
 575         int (*fb_release)(struct fb_info *info, int user);
 576
 577         /* For framebuffers with strange non linear layouts or that do not
 578          * work with normal memory mapped access
 579          */
 580         ssize_t (*fb_read)(struct file *file, char __user *buf, size_t count, loff_t *ppos);
 581         ssize_t (*fb_write)(struct file *file, const char __user *buf, size_t count, loff_t *ppos);
 582
 583         /* checks var and eventually tweaks it to something supported,
 584          * DO NOT MODIFY PAR */
 585         int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
 586
 587         /* set the video mode according to info->var */
 588         int (*fb_set_par)(struct fb_info *info);
 589
 590         /* set color register */
 591         int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green,
 592                             unsigned blue, unsigned transp, struct fb_info *info);
 593
 594         /* set color registers in batch */
 595         int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info);
 596
 597         /* blank display */
 598         int (*fb_blank)(int blank, struct fb_info *info);
 599
 600         /* pan display */
 601         int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info);
 602
 603         /* Draws a rectangle */
 604         void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);
 605         /* Copy data from area to another */
 606         void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);
 607         /* Draws a image to the display */
 608         void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
 609
 610         /* Draws cursor */
 611         int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
 612
 613         /* Rotates the display */
 614         void (*fb_rotate)(struct fb_info *info, int angle);
 615
 616         /* wait for blit idle, optional */
 617         int (*fb_sync)(struct fb_info *info);
 618
 619         /* perform fb specific ioctl (optional) */
 620         int (*fb_ioctl)(struct fb_info *info, unsigned int cmd,
 621                         unsigned long arg);
 622
 623         /* Handle 32bit compat ioctl (optional) */
 624         int (*fb_compat_ioctl)(struct fb_info *info, unsigned cmd,
 625                         unsigned long arg);
 626
 627         /* perform fb specific mmap */
 628         int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma);
 629
 630         /* save current hardware state */
 631         void (*fb_save_state)(struct fb_info *info);
 632
 633         /* restore saved state */
 634         void (*fb_restore_state)(struct fb_info *info);
 635 };
 636
 637 #ifdef CONFIG_FB_TILEBLITTING
 638
 639 #define FB_TILE_CURSOR_NONE        0
 640 #define FB_TILE_CURSOR_UNDERLINE   1
 641 #define FB_TILE_CURSOR_LOWER_THIRD 2
 642 #define FB_TILE_CURSOR_LOWER_HALF  3
 643 #define FB_TILE_CURSOR_TWO_THIRDS  4
 644 #define FB_TILE_CURSOR_BLOCK       5
 645
 646 struct fb_tilemap {
 647         __u32 width;                /* width of each tile in pixels */
 648         __u32 height;               /* height of each tile in scanlines */
 649         __u32 depth;                /* color depth of each tile */
 650         __u32 length;               /* number of tiles in the map */
 651         const __u8 *data;           /* actual tile map: a bitmap array, packed
 652                                        to the nearest byte */
 653 };
 654
 655 struct fb_tilerect {
 656         __u32 sx;                   /* origin in the x-axis */
 657         __u32 sy;                   /* origin in the y-axis */
 658         __u32 width;                /* number of tiles in the x-axis */
 659         __u32 height;               /* number of tiles in the y-axis */
 660         __u32 index;                /* what tile to use: index to tile map */
 661         __u32 fg;                   /* foreground color */
 662         __u32 bg;                   /* background color */
 663         __u32 rop;                  /* raster operation */
 664 };
 665
 666 struct fb_tilearea {
 667         __u32 sx;                   /* source origin in the x-axis */
 668         __u32 sy;                   /* source origin in the y-axis */
 669         __u32 dx;                   /* destination origin in the x-axis */
 670         __u32 dy;                   /* destination origin in the y-axis */
 671         __u32 width;                /* number of tiles in the x-axis */
 672         __u32 height;               /* number of tiles in the y-axis */
 673 };
 674
 675 struct fb_tileblit {
 676         __u32 sx;                   /* origin in the x-axis */
 677         __u32 sy;                   /* origin in the y-axis */
 678         __u32 width;                /* number of tiles in the x-axis */
 679         __u32 height;               /* number of tiles in the y-axis */
 680         __u32 fg;                   /* foreground color */
 681         __u32 bg;                   /* background color */
 682         __u32 length;               /* number of tiles to draw */
 683         __u32 *indices;             /* array of indices to tile map */
 684 };
 685
 686 struct fb_tilecursor {
 687         __u32 sx;                   /* cursor position in the x-axis */
 688         __u32 sy;                   /* cursor position in the y-axis */
 689         __u32 mode;                 /* 0 = erase, 1 = draw */
 690         __u32 shape;                /* see FB_TILE_CURSOR_* */
 691         __u32 fg;                   /* foreground color */
 692         __u32 bg;                   /* background color */
 693 };
 694
 695 struct fb_tile_ops {
 696         /* set tile characteristics */
 697         void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map);
 698
 699         /* all dimensions from hereon are in terms of tiles */
 700
 701         /* move a rectangular region of tiles from one area to another*/
 702         void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area);
 703         /* fill a rectangular region with a tile */
 704         void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect);
 705         /* copy an array of tiles */
 706         void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit);
 707         /* cursor */
 708         void (*fb_tilecursor)(struct fb_info *info,
 709                               struct fb_tilecursor *cursor);
 710 };
 711 #endif /* CONFIG_FB_TILEBLITTING */
 712
 713 /* FBINFO_* = fb_info.flags bit flags */
 714 #define FBINFO_MODULE           0x0001  /* Low-level driver is a module */
 715 #define FBINFO_HWACCEL_DISABLED 0x0002
 716         /* When FBINFO_HWACCEL_DISABLED is set:
 717          *  Hardware acceleration is turned off.  Software implementations
 718          *  of required functions (copyarea(), fillrect(), and imageblit())
 719          *  takes over; acceleration engine should be in a quiescent state */
 720
 721 /* hints */
 722 #define FBINFO_PARTIAL_PAN_OK   0x0040 /* otw use pan only for double-buffering */
 723 #define FBINFO_READS_FAST       0x0080 /* soft-copy faster than rendering */
 724
 725 /* hardware supported ops */
 726 /*  semantics: when a bit is set, it indicates that the operation is
 727  *   accelerated by hardware.
 728  *  required functions will still work even if the bit is not set.
 729  *  optional functions may not even exist if the flag bit is not set.
 730  */
 731 #define FBINFO_HWACCEL_NONE             0x0000
 732 #define FBINFO_HWACCEL_COPYAREA         0x0100 /* required */
 733 #define FBINFO_HWACCEL_FILLRECT         0x0200 /* required */
 734 #define FBINFO_HWACCEL_IMAGEBLIT        0x0400 /* required */
 735 #define FBINFO_HWACCEL_ROTATE           0x0800 /* optional */
 736 #define FBINFO_HWACCEL_XPAN             0x1000 /* optional */
 737 #define FBINFO_HWACCEL_YPAN             0x2000 /* optional */
 738 #define FBINFO_HWACCEL_YWRAP            0x4000 /* optional */
 739
 740 #define FBINFO_MISC_USEREVENT          0x10000 /* event request
 741                                                   from userspace */
 742 #define FBINFO_MISC_TILEBLITTING       0x20000 /* use tile blitting */
 743
 744 /* A driver may set this flag to indicate that it does want a set_par to be
 745  * called every time when fbcon_switch is executed. The advantage is that with
 746  * this flag set you can really be sure that set_par is always called before
 747  * any of the functions dependant on the correct hardware state or altering
 748  * that state, even if you are using some broken X releases. The disadvantage
 749  * is that it introduces unwanted delays to every console switch if set_par
 750  * is slow. It is a good idea to try this flag in the drivers initialization
 751  * code whenever there is a bug report related to switching between X and the
 752  * framebuffer console.
 753  */
 754 #define FBINFO_MISC_ALWAYS_SETPAR   0x40000
 755
 756 struct fb_info {
 757         int node;
 758         int flags;
 759         struct fb_var_screeninfo var;   /* Current var */
 760         struct fb_fix_screeninfo fix;   /* Current fix */
 761         struct fb_monspecs monspecs;    /* Current Monitor specs */
 762         struct work_struct queue;       /* Framebuffer event queue */
 763         struct fb_pixmap pixmap;        /* Image hardware mapper */
 764         struct fb_pixmap sprite;        /* Cursor hardware mapper */
 765         struct fb_cmap cmap;            /* Current cmap */
 766         struct list_head modelist;      /* mode list */
 767         struct fb_videomode *mode;      /* current mode */
 768
 769 #ifdef CONFIG_FB_BACKLIGHT
 770         /* Lock ordering:
 771          * bl_mutex (protects bl_dev and bl_curve)
 772          *   bl_dev->sem (backlight class)
 773          */
 774         struct mutex bl_mutex;
 775
 776         /* assigned backlight device */
 777         struct backlight_device *bl_dev;
 778
 779         /* Backlight level curve */
 780         u8 bl_curve[FB_BACKLIGHT_LEVELS];
 781 #endif
 782
 783         struct fb_ops *fbops;
 784         struct device *device;          /* This is the parent */
 785         struct device *dev;             /* This is this fb device */
 786         int class_flag;                    /* private sysfs flags */
 787 #ifdef CONFIG_FB_TILEBLITTING
 788         struct fb_tile_ops *tileops;    /* Tile Blitting */
 789 #endif
 790         char __iomem *screen_base;      /* Virtual address */
 791         unsigned long screen_size;      /* Amount of ioremapped VRAM or 0 */
 792         void *pseudo_palette;           /* Fake palette of 16 colors */
 793 #define FBINFO_STATE_RUNNING    0
 794 #define FBINFO_STATE_SUSPENDED  1
 795         u32 state;                      /* Hardware state i.e suspend */
 796         void *fbcon_par;                /* fbcon use-only private area */
 797         /* From here on everything is device dependent */
 798         void *par;
 799 };
 800
 801 #ifdef MODULE
 802 #define FBINFO_DEFAULT  FBINFO_MODULE
 803 #else
 804 #define FBINFO_DEFAULT  0
 805 #endif
 806
 807 // This will go away
 808 #define FBINFO_FLAG_MODULE      FBINFO_MODULE
 809 #define FBINFO_FLAG_DEFAULT     FBINFO_DEFAULT
 810
 811 /* This will go away
 812  * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags
 813  * when it wants to turn the acceleration engine on.  This is
 814  * really a separate operation, and should be modified via sysfs.
 815  *  But for now, we leave it broken with the following define
 816  */
 817 #define STUPID_ACCELF_TEXT_SHIT
 818
 819 // This will go away
 820 #if defined(__sparc__)
 821
 822 /* We map all of our framebuffers such that big-endian accesses
 823  * are what we want, so the following is sufficient.
 824  */
 825
 826 // This will go away
 827 #define fb_readb sbus_readb
 828 #define fb_readw sbus_readw
 829 #define fb_readl sbus_readl
 830 #define fb_readq sbus_readq
 831 #define fb_writeb sbus_writeb
 832 #define fb_writew sbus_writew
 833 #define fb_writel sbus_writel
 834 #define fb_writeq sbus_writeq
 835 #define fb_memset sbus_memset_io
 836
 837 #elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || (defined(__sh__) && !defined(__SH5__)) || defined(__powerpc__)
 838
 839 #define fb_readb __raw_readb
 840 #define fb_readw __raw_readw
 841 #define fb_readl __raw_readl
 842 #define fb_readq __raw_readq
 843 #define fb_writeb __raw_writeb
 844 #define fb_writew __raw_writew
 845 #define fb_writel __raw_writel
 846 #define fb_writeq __raw_writeq
 847 #define fb_memset memset_io
 848
 849 #else
 850
 851 #define fb_readb(addr) (*(volatile u8 *) (addr))
 852 #define fb_readw(addr) (*(volatile u16 *) (addr))
 853 #define fb_readl(addr) (*(volatile u32 *) (addr))
 854 #define fb_readq(addr) (*(volatile u64 *) (addr))
 855 #define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
 856 #define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
 857 #define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
 858 #define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b))
 859 #define fb_memset memset
 860
 861 #endif
 862
 863 #if defined (__BIG_ENDIAN)
 864 #define FB_LEFT_POS(bpp)          (32 - bpp)
 865 #define FB_SHIFT_HIGH(val, bits)  ((val) >> (bits))
 866 #define FB_SHIFT_LOW(val, bits)   ((val) << (bits))
 867 #else
 868 #define FB_LEFT_POS(bpp)          (0)
 869 #define FB_SHIFT_HIGH(val, bits)  ((val) << (bits))
 870 #define FB_SHIFT_LOW(val, bits)   ((val) >> (bits))
 871 #endif
 872
 873     /*
 874      *  `Generic' versions of the frame buffer device operations
 875      */
 876
 877 extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var);
 878 extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var);
 879 extern int fb_blank(struct fb_info *info, int blank);
 880 extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
 881 extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
 882 extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image);
 883
 884 /* drivers/video/fbmem.c */
 885 extern int register_framebuffer(struct fb_info *fb_info);
 886 extern int unregister_framebuffer(struct fb_info *fb_info);
 887 extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
 888 extern int fb_show_logo(struct fb_info *fb_info, int rotate);
 889 extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);
 890 extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx,
 891                                 u32 height, u32 shift_high, u32 shift_low, u32 mod);
 892 extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height);
 893 extern void fb_set_suspend(struct fb_info *info, int state);
 894 extern int fb_get_color_depth(struct fb_var_screeninfo *var,
 895                               struct fb_fix_screeninfo *fix);
 896 extern int fb_get_options(char *name, char **option);
 897 extern int fb_new_modelist(struct fb_info *info);
 898
 899 extern struct fb_info *registered_fb[FB_MAX];
 900 extern int num_registered_fb;
 901
 902 static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch,
 903                                            u8 *src, u32 s_pitch, u32 height)
 904 {
 905         int i, j;
 906
 907         d_pitch -= s_pitch;
 908
 909         for (i = height; i--; ) {
 910                 /* s_pitch is a few bytes at the most, memcpy is suboptimal */
 911                 for (j = 0; j < s_pitch; j++)
 912                         *dst++ = *src++;
 913                 dst += d_pitch;
 914         }
 915 }
 916
 917 /* drivers/video/fbsysfs.c */
 918 extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);
 919 extern void framebuffer_release(struct fb_info *info);
 920 extern int fb_init_device(struct fb_info *fb_info);
 921 extern void fb_cleanup_device(struct fb_info *head);
 922 extern void fb_bl_default_curve(struct fb_info *fb_info, u8 off, u8 min, u8 max);
 923
 924 /* drivers/video/fbmon.c */
 925 #define FB_MAXTIMINGS           0
 926 #define FB_VSYNCTIMINGS         1
 927 #define FB_HSYNCTIMINGS         2
 928 #define FB_DCLKTIMINGS          3
 929 #define FB_IGNOREMON            0x100
 930
 931 #define FB_MODE_IS_UNKNOWN      0
 932 #define FB_MODE_IS_DETAILED     1
 933 #define FB_MODE_IS_STANDARD     2
 934 #define FB_MODE_IS_VESA         4
 935 #define FB_MODE_IS_CALCULATED   8
 936 #define FB_MODE_IS_FIRST        16
 937 #define FB_MODE_IS_FROM_VAR     32
 938
 939 extern int fbmon_dpms(const struct fb_info *fb_info);
 940 extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var,
 941                        struct fb_info *info);
 942 extern int fb_validate_mode(const struct fb_var_screeninfo *var,
 943                             struct fb_info *info);
 944 extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);
 945 extern const unsigned char *fb_firmware_edid(struct device *device);
 946 extern void fb_edid_to_monspecs(unsigned char *edid,
 947                                 struct fb_monspecs *specs);
 948 extern void fb_destroy_modedb(struct fb_videomode *modedb);
 949 extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb);
 950 extern unsigned char *fb_ddc_read(struct i2c_adapter *adapter);
 951
 952 /* drivers/video/modedb.c */
 953 #define VESA_MODEDB_SIZE 34
 954 extern void fb_var_to_videomode(struct fb_videomode *mode,
 955                                 const struct fb_var_screeninfo *var);
 956 extern void fb_videomode_to_var(struct fb_var_screeninfo *var,
 957                                 const struct fb_videomode *mode);
 958 extern int fb_mode_is_equal(const struct fb_videomode *mode1,
 959                             const struct fb_videomode *mode2);
 960 extern int fb_add_videomode(const struct fb_videomode *mode,
 961                             struct list_head *head);
 962 extern void fb_delete_videomode(const struct fb_videomode *mode,
 963                                 struct list_head *head);
 964 extern const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var,
 965                                                 struct list_head *head);
 966 extern const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var,
 967                                                     struct list_head *head);
 968 extern const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode,
 969                                                        struct list_head *head);
 970 extern void fb_destroy_modelist(struct list_head *head);
 971 extern void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num,
 972                                      struct list_head *head);
 973 extern const struct fb_videomode *fb_find_best_display(const struct fb_monspecs *specs,
 974                                                        struct list_head *head);
 975
 976 /* drivers/video/fbcmap.c */
 977 extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);
 978 extern void fb_dealloc_cmap(struct fb_cmap *cmap);
 979 extern int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to);
 980 extern int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to);
 981 extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info);
 982 extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info);
 983 extern const struct fb_cmap *fb_default_cmap(int len);
 984 extern void fb_invert_cmaps(void);
 985
 986 struct fb_videomode {
 987         const char *name;       /* optional */
 988         u32 refresh;            /* optional */
 989         u32 xres;
 990         u32 yres;
 991         u32 pixclock;
 992         u32 left_margin;
 993         u32 right_margin;
 994         u32 upper_margin;
 995         u32 lower_margin;
 996         u32 hsync_len;
 997         u32 vsync_len;
 998         u32 sync;
 999         u32 vmode;
1000         u32 flag;
1001 };
1002
1003 extern const struct fb_videomode vesa_modes[];
1004
1005 struct fb_modelist {
1006         struct list_head list;
1007         struct fb_videomode mode;
1008 };
1009
1010 extern int fb_find_mode(struct fb_var_screeninfo *var,
1011                         struct fb_info *info, const char *mode_option,
1012                         const struct fb_videomode *db,
1013                         unsigned int dbsize,
1014                         const struct fb_videomode *default_mode,
1015                         unsigned int default_bpp);
1016
1017 #endif /* __KERNEL__ */
1018
1019 #endif /* _LINUX_FB_H */