include/linux/fb.h

   1 #ifndef _LINUX_FB_H
   2 #define _LINUX_FB_H
   3
   4 #include <linux/types.h>
   5 #include <linux/i2c.h>
   6
   7 struct dentry;
   8
   9 /* Definitions of frame buffers                                         */
  10
  11 #define FB_MAX                  32      /* sufficient for now */
  12
  13 /* ioctls
  14    0x46 is 'F'                                                          */
  15 #define FBIOGET_VSCREENINFO     0x4600
  16 #define FBIOPUT_VSCREENINFO     0x4601
  17 #define FBIOGET_FSCREENINFO     0x4602
  18 #define FBIOGETCMAP             0x4604
  19 #define FBIOPUTCMAP             0x4605
  20 #define FBIOPAN_DISPLAY         0x4606
  21 #ifdef __KERNEL__
  22 #define FBIO_CURSOR            _IOWR('F', 0x08, struct fb_cursor_user)
  23 #else
  24 #define FBIO_CURSOR            _IOWR('F', 0x08, struct fb_cursor)
  25 #endif
  26 /* 0x4607-0x460B are defined below */
  27 /* #define FBIOGET_MONITORSPEC  0x460C */
  28 /* #define FBIOPUT_MONITORSPEC  0x460D */
  29 /* #define FBIOSWITCH_MONIBIT   0x460E */
  30 #define FBIOGET_CON2FBMAP       0x460F
  31 #define FBIOPUT_CON2FBMAP       0x4610
  32 #define FBIOBLANK               0x4611          /* arg: 0 or vesa level + 1 */
  33 #define FBIOGET_VBLANK          _IOR('F', 0x12, struct fb_vblank)
  34 #define FBIO_ALLOC              0x4613
  35 #define FBIO_FREE               0x4614
  36 #define FBIOGET_GLYPH           0x4615
  37 #define FBIOGET_HWCINFO         0x4616
  38 #define FBIOPUT_MODEINFO        0x4617
  39 #define FBIOGET_DISPINFO        0x4618
  40
  41
  42 #define FB_TYPE_PACKED_PIXELS           0       /* Packed Pixels        */
  43 #define FB_TYPE_PLANES                  1       /* Non interleaved planes */
  44 #define FB_TYPE_INTERLEAVED_PLANES      2       /* Interleaved planes   */
  45 #define FB_TYPE_TEXT                    3       /* Text/attributes      */
  46 #define FB_TYPE_VGA_PLANES              4       /* EGA/VGA planes       */
  47
  48 #define FB_AUX_TEXT_MDA         0       /* Monochrome text */
  49 #define FB_AUX_TEXT_CGA         1       /* CGA/EGA/VGA Color text */
  50 #define FB_AUX_TEXT_S3_MMIO     2       /* S3 MMIO fasttext */
  51 #define FB_AUX_TEXT_MGA_STEP16  3       /* MGA Millenium I: text, attr, 14 reserved bytes */
  52 #define FB_AUX_TEXT_MGA_STEP8   4       /* other MGAs:      text, attr,  6 reserved bytes */
  53 #define FB_AUX_TEXT_SVGA_GROUP  8       /* 8-15: SVGA tileblit compatible modes */
  54 #define FB_AUX_TEXT_SVGA_MASK   7       /* lower three bits says step */
  55 #define FB_AUX_TEXT_SVGA_STEP2  8       /* SVGA text mode:  text, attr */
  56 #define FB_AUX_TEXT_SVGA_STEP4  9       /* SVGA text mode:  text, attr,  2 reserved bytes */
  57 #define FB_AUX_TEXT_SVGA_STEP8  10      /* SVGA text mode:  text, attr,  6 reserved bytes */
  58 #define FB_AUX_TEXT_SVGA_STEP16 11      /* SVGA text mode:  text, attr, 14 reserved bytes */
  59 #define FB_AUX_TEXT_SVGA_LAST   15      /* reserved up to 15 */
  60
  61 #define FB_AUX_VGA_PLANES_VGA4          0       /* 16 color planes (EGA/VGA) */
  62 #define FB_AUX_VGA_PLANES_CFB4          1       /* CFB4 in planes (VGA) */
  63 #define FB_AUX_VGA_PLANES_CFB8          2       /* CFB8 in planes (VGA) */
  64
  65 #define FB_VISUAL_MONO01                0       /* Monochr. 1=Black 0=White */
  66 #define FB_VISUAL_MONO10                1       /* Monochr. 1=White 0=Black */
  67 #define FB_VISUAL_TRUECOLOR             2       /* True color   */
  68 #define FB_VISUAL_PSEUDOCOLOR           3       /* Pseudo color (like atari) */
  69 #define FB_VISUAL_DIRECTCOLOR           4       /* Direct color */
  70 #define FB_VISUAL_STATIC_PSEUDOCOLOR    5       /* Pseudo color readonly */
  71
  72 #define FB_ACCEL_NONE           0       /* no hardware accelerator      */
  73 #define FB_ACCEL_ATARIBLITT     1       /* Atari Blitter                */
  74 #define FB_ACCEL_AMIGABLITT     2       /* Amiga Blitter                */
  75 #define FB_ACCEL_S3_TRIO64      3       /* Cybervision64 (S3 Trio64)    */
  76 #define FB_ACCEL_NCR_77C32BLT   4       /* RetinaZ3 (NCR 77C32BLT)      */
  77 #define FB_ACCEL_S3_VIRGE       5       /* Cybervision64/3D (S3 ViRGE)  */
  78 #define FB_ACCEL_ATI_MACH64GX   6       /* ATI Mach 64GX family         */
  79 #define FB_ACCEL_DEC_TGA        7       /* DEC 21030 TGA                */
  80 #define FB_ACCEL_ATI_MACH64CT   8       /* ATI Mach 64CT family         */
  81 #define FB_ACCEL_ATI_MACH64VT   9       /* ATI Mach 64CT family VT class */
  82 #define FB_ACCEL_ATI_MACH64GT   10      /* ATI Mach 64CT family GT class */
  83 #define FB_ACCEL_SUN_CREATOR    11      /* Sun Creator/Creator3D        */
  84 #define FB_ACCEL_SUN_CGSIX      12      /* Sun cg6                      */
  85 #define FB_ACCEL_SUN_LEO        13      /* Sun leo/zx                   */
  86 #define FB_ACCEL_IMS_TWINTURBO  14      /* IMS Twin Turbo               */
  87 #define FB_ACCEL_3DLABS_PERMEDIA2 15    /* 3Dlabs Permedia 2            */
  88 #define FB_ACCEL_MATROX_MGA2064W 16     /* Matrox MGA2064W (Millenium)  */
  89 #define FB_ACCEL_MATROX_MGA1064SG 17    /* Matrox MGA1064SG (Mystique)  */
  90 #define FB_ACCEL_MATROX_MGA2164W 18     /* Matrox MGA2164W (Millenium II) */
  91 #define FB_ACCEL_MATROX_MGA2164W_AGP 19 /* Matrox MGA2164W (Millenium II) */
  92 #define FB_ACCEL_MATROX_MGAG100 20      /* Matrox G100 (Productiva G100) */
  93 #define FB_ACCEL_MATROX_MGAG200 21      /* Matrox G200 (Myst, Mill, ...) */
  94 #define FB_ACCEL_SUN_CG14       22      /* Sun cgfourteen                */
  95 #define FB_ACCEL_SUN_BWTWO      23      /* Sun bwtwo                    */
  96 #define FB_ACCEL_SUN_CGTHREE    24      /* Sun cgthree                  */
  97 #define FB_ACCEL_SUN_TCX        25      /* Sun tcx                      */
  98 #define FB_ACCEL_MATROX_MGAG400 26      /* Matrox G400                  */
  99 #define FB_ACCEL_NV3            27      /* nVidia RIVA 128              */
 100 #define FB_ACCEL_NV4            28      /* nVidia RIVA TNT              */
 101 #define FB_ACCEL_NV5            29      /* nVidia RIVA TNT2             */
 102 #define FB_ACCEL_CT_6555x       30      /* C&T 6555x                    */
 103 #define FB_ACCEL_3DFX_BANSHEE   31      /* 3Dfx Banshee                 */
 104 #define FB_ACCEL_ATI_RAGE128    32      /* ATI Rage128 family           */
 105 #define FB_ACCEL_IGS_CYBER2000  33      /* CyberPro 2000                */
 106 #define FB_ACCEL_IGS_CYBER2010  34      /* CyberPro 2010                */
 107 #define FB_ACCEL_IGS_CYBER5000  35      /* CyberPro 5000                */
 108 #define FB_ACCEL_SIS_GLAMOUR    36      /* SiS 300/630/540              */
 109 #define FB_ACCEL_3DLABS_PERMEDIA3 37    /* 3Dlabs Permedia 3            */
 110 #define FB_ACCEL_ATI_RADEON     38      /* ATI Radeon family            */
 111 #define FB_ACCEL_I810           39      /* Intel 810/815                */
 112 #define FB_ACCEL_SIS_GLAMOUR_2  40      /* SiS 315, 650, 740            */
 113 #define FB_ACCEL_SIS_XABRE      41      /* SiS 330 ("Xabre")            */
 114 #define FB_ACCEL_I830           42      /* Intel 830M/845G/85x/865G     */
 115 #define FB_ACCEL_NV_10          43      /* nVidia Arch 10               */
 116 #define FB_ACCEL_NV_20          44      /* nVidia Arch 20               */
 117 #define FB_ACCEL_NV_30          45      /* nVidia Arch 30               */
 118 #define FB_ACCEL_NV_40          46      /* nVidia Arch 40               */
 119 #define FB_ACCEL_XGI_VOLARI_V   47      /* XGI Volari V3XT, V5, V8      */
 120 #define FB_ACCEL_XGI_VOLARI_Z   48      /* XGI Volari Z7                */
 121 #define FB_ACCEL_OMAP1610       49      /* TI OMAP16xx                  */
 122 #define FB_ACCEL_TRIDENT_TGUI   50      /* Trident TGUI                 */
 123 #define FB_ACCEL_TRIDENT_3DIMAGE 51     /* Trident 3DImage              */
 124 #define FB_ACCEL_TRIDENT_BLADE3D 52     /* Trident Blade3D              */
 125 #define FB_ACCEL_TRIDENT_BLADEXP 53     /* Trident BladeXP              */
 126 #define FB_ACCEL_CIRRUS_ALPINE   53     /* Cirrus Logic 543x/544x/5480  */
 127 #define FB_ACCEL_NEOMAGIC_NM2070 90     /* NeoMagic NM2070              */
 128 #define FB_ACCEL_NEOMAGIC_NM2090 91     /* NeoMagic NM2090              */
 129 #define FB_ACCEL_NEOMAGIC_NM2093 92     /* NeoMagic NM2093              */
 130 #define FB_ACCEL_NEOMAGIC_NM2097 93     /* NeoMagic NM2097              */
 131 #define FB_ACCEL_NEOMAGIC_NM2160 94     /* NeoMagic NM2160              */
 132 #define FB_ACCEL_NEOMAGIC_NM2200 95     /* NeoMagic NM2200              */
 133 #define FB_ACCEL_NEOMAGIC_NM2230 96     /* NeoMagic NM2230              */
 134 #define FB_ACCEL_NEOMAGIC_NM2360 97     /* NeoMagic NM2360              */
 135 #define FB_ACCEL_NEOMAGIC_NM2380 98     /* NeoMagic NM2380              */
 136
 137 #define FB_ACCEL_SAVAGE4        0x80    /* S3 Savage4                   */
 138 #define FB_ACCEL_SAVAGE3D       0x81    /* S3 Savage3D                  */
 139 #define FB_ACCEL_SAVAGE3D_MV    0x82    /* S3 Savage3D-MV               */
 140 #define FB_ACCEL_SAVAGE2000     0x83    /* S3 Savage2000                */
 141 #define FB_ACCEL_SAVAGE_MX_MV   0x84    /* S3 Savage/MX-MV              */
 142 #define FB_ACCEL_SAVAGE_MX      0x85    /* S3 Savage/MX                 */
 143 #define FB_ACCEL_SAVAGE_IX_MV   0x86    /* S3 Savage/IX-MV              */
 144 #define FB_ACCEL_SAVAGE_IX      0x87    /* S3 Savage/IX                 */
 145 #define FB_ACCEL_PROSAVAGE_PM   0x88    /* S3 ProSavage PM133           */
 146 #define FB_ACCEL_PROSAVAGE_KM   0x89    /* S3 ProSavage KM133           */
 147 #define FB_ACCEL_S3TWISTER_P    0x8a    /* S3 Twister                   */
 148 #define FB_ACCEL_S3TWISTER_K    0x8b    /* S3 TwisterK                  */
 149 #define FB_ACCEL_SUPERSAVAGE    0x8c    /* S3 Supersavage               */
 150 #define FB_ACCEL_PROSAVAGE_DDR  0x8d    /* S3 ProSavage DDR             */
 151 #define FB_ACCEL_PROSAVAGE_DDRK 0x8e    /* S3 ProSavage DDR-K           */
 152
 153 struct fb_fix_screeninfo {
 154         char id[16];                    /* identification string eg "TT Builtin" */
 155         unsigned long smem_start;       /* Start of frame buffer mem */
 156                                         /* (physical address) */
 157         __u32 smem_len;                 /* Length of frame buffer mem */
 158         __u32 type;                     /* see FB_TYPE_*                */
 159         __u32 type_aux;                 /* Interleave for interleaved Planes */
 160         __u32 visual;                   /* see FB_VISUAL_*              */
 161         __u16 xpanstep;                 /* zero if no hardware panning  */
 162         __u16 ypanstep;                 /* zero if no hardware panning  */
 163         __u16 ywrapstep;                /* zero if no hardware ywrap    */
 164         __u32 line_length;              /* length of a line in bytes    */
 165         unsigned long mmio_start;       /* Start of Memory Mapped I/O   */
 166                                         /* (physical address) */
 167         __u32 mmio_len;                 /* Length of Memory Mapped I/O  */
 168         __u32 accel;                    /* Indicate to driver which     */
 169                                         /*  specific chip/card we have  */
 170         __u16 reserved[3];              /* Reserved for future compatibility */
 171 };
 172
 173 /* Interpretation of offset for color fields: All offsets are from the right,
 174  * inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
 175  * can use the offset as right argument to <<). A pixel afterwards is a bit
 176  * stream and is written to video memory as that unmodified.
 177  *
 178  * For pseudocolor: offset and length should be the same for all color
 179  * components. Offset specifies the position of the least significant bit
 180  * of the pallette index in a pixel value. Length indicates the number
 181  * of available palette entries (i.e. # of entries = 1 << length).
 182  */
 183 struct fb_bitfield {
 184         __u32 offset;                   /* beginning of bitfield        */
 185         __u32 length;                   /* length of bitfield           */
 186         __u32 msb_right;                /* != 0 : Most significant bit is */
 187                                         /* right */
 188 };
 189
 190 #define FB_NONSTD_HAM           1       /* Hold-And-Modify (HAM)        */
 191 #define FB_NONSTD_REV_PIX_IN_B  2       /* order of pixels in each byte is reversed */
 192
 193 #define FB_ACTIVATE_NOW         0       /* set values immediately (or vbl)*/
 194 #define FB_ACTIVATE_NXTOPEN     1       /* activate on next open        */
 195 #define FB_ACTIVATE_TEST        2       /* don't set, round up impossible */
 196 #define FB_ACTIVATE_MASK       15
 197                                         /* values                       */
 198 #define FB_ACTIVATE_VBL        16       /* activate values on next vbl  */
 199 #define FB_CHANGE_CMAP_VBL     32       /* change colormap on vbl       */
 200 #define FB_ACTIVATE_ALL        64       /* change all VCs on this fb    */
 201 #define FB_ACTIVATE_FORCE     128       /* force apply even when no change*/
 202 #define FB_ACTIVATE_INV_MODE  256       /* invalidate videomode */
 203
 204 #define FB_ACCELF_TEXT          1       /* (OBSOLETE) see fb_info.flags and vc_mode */
 205
 206 #define FB_SYNC_HOR_HIGH_ACT    1       /* horizontal sync high active  */
 207 #define FB_SYNC_VERT_HIGH_ACT   2       /* vertical sync high active    */
 208 #define FB_SYNC_EXT             4       /* external sync                */
 209 #define FB_SYNC_COMP_HIGH_ACT   8       /* composite sync high active   */
 210 #define FB_SYNC_BROADCAST       16      /* broadcast video timings      */
 211                                         /* vtotal = 144d/288n/576i => PAL  */
 212                                         /* vtotal = 121d/242n/484i => NTSC */
 213 #define FB_SYNC_ON_GREEN        32      /* sync on green */
 214
 215 #define FB_VMODE_NONINTERLACED  0       /* non interlaced */
 216 #define FB_VMODE_INTERLACED     1       /* interlaced   */
 217 #define FB_VMODE_DOUBLE         2       /* double scan */
 218 #define FB_VMODE_ODD_FLD_FIRST  4       /* interlaced: top line first */
 219 #define FB_VMODE_MASK           255
 220
 221 #define FB_VMODE_YWRAP          256     /* ywrap instead of panning     */
 222 #define FB_VMODE_SMOOTH_XPAN    512     /* smooth xpan possible (internally used) */
 223 #define FB_VMODE_CONUPDATE      512     /* don't update x/yoffset       */
 224
 225 /*
 226  * Display rotation support
 227  */
 228 #define FB_ROTATE_UR      0
 229 #define FB_ROTATE_CW      1
 230 #define FB_ROTATE_UD      2
 231 #define FB_ROTATE_CCW     3
 232
 233 #define PICOS2KHZ(a) (1000000000UL/(a))
 234 #define KHZ2PICOS(a) (1000000000UL/(a))
 235
 236 struct fb_var_screeninfo {
 237         __u32 xres;                     /* visible resolution           */
 238         __u32 yres;
 239         __u32 xres_virtual;             /* virtual resolution           */
 240         __u32 yres_virtual;
 241         __u32 xoffset;                  /* offset from virtual to visible */
 242         __u32 yoffset;                  /* resolution                   */
 243
 244         __u32 bits_per_pixel;           /* guess what                   */
 245         __u32 grayscale;                /* != 0 Graylevels instead of colors */
 246
 247         struct fb_bitfield red;         /* bitfield in fb mem if true color, */
 248         struct fb_bitfield green;       /* else only length is significant */
 249         struct fb_bitfield blue;
 250         struct fb_bitfield transp;      /* transparency                 */
 251
 252         __u32 nonstd;                   /* != 0 Non standard pixel format */
 253
 254         __u32 activate;                 /* see FB_ACTIVATE_*            */
 255
 256         __u32 height;                   /* height of picture in mm    */
 257         __u32 width;                    /* width of picture in mm     */
 258
 259         __u32 accel_flags;              /* (OBSOLETE) see fb_info.flags */
 260
 261         /* Timing: All values in pixclocks, except pixclock (of course) */
 262         __u32 pixclock;                 /* pixel clock in ps (pico seconds) */
 263         __u32 left_margin;              /* time from sync to picture    */
 264         __u32 right_margin;             /* time from picture to sync    */
 265         __u32 upper_margin;             /* time from sync to picture    */
 266         __u32 lower_margin;
 267         __u32 hsync_len;                /* length of horizontal sync    */
 268         __u32 vsync_len;                /* length of vertical sync      */
 269         __u32 sync;                     /* see FB_SYNC_*                */
 270         __u32 vmode;                    /* see FB_VMODE_*               */
 271         __u32 rotate;                   /* angle we rotate counter clockwise */
 272         __u32 reserved[5];              /* Reserved for future compatibility */
 273 };
 274
 275 struct fb_cmap {
 276         __u32 start;                    /* First entry  */
 277         __u32 len;                      /* Number of entries */
 278         __u16 *red;                     /* Red values   */
 279         __u16 *green;
 280         __u16 *blue;
 281         __u16 *transp;                  /* transparency, can be NULL */
 282 };
 283
 284 struct fb_con2fbmap {
 285         __u32 console;
 286         __u32 framebuffer;
 287 };
 288
 289 /* VESA Blanking Levels */
 290 #define VESA_NO_BLANKING        0
 291 #define VESA_VSYNC_SUSPEND      1
 292 #define VESA_HSYNC_SUSPEND      2
 293 #define VESA_POWERDOWN          3
 294
 295
 296 enum {
 297         /* screen: unblanked, hsync: on,  vsync: on */
 298         FB_BLANK_UNBLANK       = VESA_NO_BLANKING,
 299
 300         /* screen: blanked,   hsync: on,  vsync: on */
 301         FB_BLANK_NORMAL        = VESA_NO_BLANKING + 1,
 302
 303         /* screen: blanked,   hsync: on,  vsync: off */
 304         FB_BLANK_VSYNC_SUSPEND = VESA_VSYNC_SUSPEND + 1,
 305
 306         /* screen: blanked,   hsync: off, vsync: on */
 307         FB_BLANK_HSYNC_SUSPEND = VESA_HSYNC_SUSPEND + 1,
 308
 309         /* screen: blanked,   hsync: off, vsync: off */
 310         FB_BLANK_POWERDOWN     = VESA_POWERDOWN + 1
 311 };
 312
 313 #define FB_VBLANK_VBLANKING     0x001   /* currently in a vertical blank */
 314 #define FB_VBLANK_HBLANKING     0x002   /* currently in a horizontal blank */
 315 #define FB_VBLANK_HAVE_VBLANK   0x004   /* vertical blanks can be detected */
 316 #define FB_VBLANK_HAVE_HBLANK   0x008   /* horizontal blanks can be detected */
 317 #define FB_VBLANK_HAVE_COUNT    0x010   /* global retrace counter is available */
 318 #define FB_VBLANK_HAVE_VCOUNT   0x020   /* the vcount field is valid */
 319 #define FB_VBLANK_HAVE_HCOUNT   0x040   /* the hcount field is valid */
 320 #define FB_VBLANK_VSYNCING      0x080   /* currently in a vsync */
 321 #define FB_VBLANK_HAVE_VSYNC    0x100   /* verical syncs can be detected */
 322
 323 struct fb_vblank {
 324         __u32 flags;                    /* FB_VBLANK flags */
 325         __u32 count;                    /* counter of retraces since boot */
 326         __u32 vcount;                   /* current scanline position */
 327         __u32 hcount;                   /* current scandot position */
 328         __u32 reserved[4];              /* reserved for future compatibility */
 329 };
 330
 331 /* Internal HW accel */
 332 #define ROP_COPY 0
 333 #define ROP_XOR  1
 334
 335 struct fb_copyarea {
 336         __u32 dx;
 337         __u32 dy;
 338         __u32 width;
 339         __u32 height;
 340         __u32 sx;
 341         __u32 sy;
 342 };
 343
 344 struct fb_fillrect {
 345         __u32 dx;       /* screen-relative */
 346         __u32 dy;
 347         __u32 width;
 348         __u32 height;
 349         __u32 color;
 350         __u32 rop;
 351 };
 352
 353 struct fb_image {
 354         __u32 dx;               /* Where to place image */
 355         __u32 dy;
 356         __u32 width;            /* Size of image */
 357         __u32 height;
 358         __u32 fg_color;         /* Only used when a mono bitmap */
 359         __u32 bg_color;
 360         __u8  depth;            /* Depth of the image */
 361         const char *data;       /* Pointer to image data */
 362         struct fb_cmap cmap;    /* color map info */
 363 };
 364
 365 /*
 366  * hardware cursor control
 367  */
 368
 369 #define FB_CUR_SETIMAGE 0x01
 370 #define FB_CUR_SETPOS   0x02
 371 #define FB_CUR_SETHOT   0x04
 372 #define FB_CUR_SETCMAP  0x08
 373 #define FB_CUR_SETSHAPE 0x10
 374 #define FB_CUR_SETSIZE  0x20
 375 #define FB_CUR_SETALL   0xFF
 376
 377 struct fbcurpos {
 378         __u16 x, y;
 379 };
 380
 381 struct fb_cursor {
 382         __u16 set;              /* what to set */
 383         __u16 enable;           /* cursor on/off */
 384         __u16 rop;              /* bitop operation */
 385         const char *mask;       /* cursor mask bits */
 386         struct fbcurpos hot;    /* cursor hot spot */
 387         struct fb_image image;  /* Cursor image */
 388 };
 389
 390 #ifdef CONFIG_FB_BACKLIGHT
 391 /* Settings for the generic backlight code */
 392 #define FB_BACKLIGHT_LEVELS     128
 393 #define FB_BACKLIGHT_MAX        0xFF
 394 #endif
 395
 396 #ifdef __KERNEL__
 397
 398 #include <linux/fs.h>
 399 #include <linux/init.h>
 400 #include <linux/device.h>
 401 #include <linux/workqueue.h>
 402 #include <linux/notifier.h>
 403 #include <linux/list.h>
 404 #include <linux/backlight.h>
 405 #include <asm/io.h>
 406
 407 struct vm_area_struct;
 408 struct fb_info;
 409 struct device;
 410 struct file;
 411
 412 /* Definitions below are used in the parsed monitor specs */
 413 #define FB_DPMS_ACTIVE_OFF      1
 414 #define FB_DPMS_SUSPEND         2
 415 #define FB_DPMS_STANDBY         4
 416
 417 #define FB_DISP_DDI             1
 418 #define FB_DISP_ANA_700_300     2
 419 #define FB_DISP_ANA_714_286     4
 420 #define FB_DISP_ANA_1000_400    8
 421 #define FB_DISP_ANA_700_000     16
 422
 423 #define FB_DISP_MONO            32
 424 #define FB_DISP_RGB             64
 425 #define FB_DISP_MULTI           128
 426 #define FB_DISP_UNKNOWN         256
 427
 428 #define FB_SIGNAL_NONE          0
 429 #define FB_SIGNAL_BLANK_BLANK   1
 430 #define FB_SIGNAL_SEPARATE      2
 431 #define FB_SIGNAL_COMPOSITE     4
 432 #define FB_SIGNAL_SYNC_ON_GREEN 8
 433 #define FB_SIGNAL_SERRATION_ON  16
 434
 435 #define FB_MISC_PRIM_COLOR      1
 436 #define FB_MISC_1ST_DETAIL      2       /* First Detailed Timing is preferred */
 437 struct fb_chroma {
 438         __u32 redx;     /* in fraction of 1024 */
 439         __u32 greenx;
 440         __u32 bluex;
 441         __u32 whitex;
 442         __u32 redy;
 443         __u32 greeny;
 444         __u32 bluey;
 445         __u32 whitey;
 446 };
 447
 448 struct fb_monspecs {
 449         struct fb_chroma chroma;
 450         struct fb_videomode *modedb;    /* mode database */
 451         __u8  manufacturer[4];          /* Manufacturer */
 452         __u8  monitor[14];              /* Monitor String */
 453         __u8  serial_no[14];            /* Serial Number */
 454         __u8  ascii[14];                /* ? */
 455         __u32 modedb_len;               /* mode database length */
 456         __u32 model;                    /* Monitor Model */
 457         __u32 serial;                   /* Serial Number - Integer */
 458         __u32 year;                     /* Year manufactured */
 459         __u32 week;                     /* Week Manufactured */
 460         __u32 hfmin;                    /* hfreq lower limit (Hz) */
 461         __u32 hfmax;                    /* hfreq upper limit (Hz) */
 462         __u32 dclkmin;                  /* pixelclock lower limit (Hz) */
 463         __u32 dclkmax;                  /* pixelclock upper limit (Hz) */
 464         __u16 input;                    /* display type - see FB_DISP_* */
 465         __u16 dpms;                     /* DPMS support - see FB_DPMS_ */
 466         __u16 signal;                   /* Signal Type - see FB_SIGNAL_* */
 467         __u16 vfmin;                    /* vfreq lower limit (Hz) */
 468         __u16 vfmax;                    /* vfreq upper limit (Hz) */
 469         __u16 gamma;                    /* Gamma - in fractions of 100 */
 470         __u16 gtf       : 1;            /* supports GTF */
 471         __u16 misc;                     /* Misc flags - see FB_MISC_* */
 472         __u8  version;                  /* EDID version... */
 473         __u8  revision;                 /* ...and revision */
 474         __u8  max_x;                    /* Maximum horizontal size (cm) */
 475         __u8  max_y;                    /* Maximum vertical size (cm) */
 476 };
 477
 478 struct fb_cmap_user {
 479         __u32 start;                    /* First entry  */
 480         __u32 len;                      /* Number of entries */
 481         __u16 __user *red;              /* Red values   */
 482         __u16 __user *green;
 483         __u16 __user *blue;
 484         __u16 __user *transp;           /* transparency, can be NULL */
 485 };
 486
 487 struct fb_image_user {
 488         __u32 dx;                       /* Where to place image */
 489         __u32 dy;
 490         __u32 width;                    /* Size of image */
 491         __u32 height;
 492         __u32 fg_color;                 /* Only used when a mono bitmap */
 493         __u32 bg_color;
 494         __u8  depth;                    /* Depth of the image */
 495         const char __user *data;        /* Pointer to image data */
 496         struct fb_cmap_user cmap;       /* color map info */
 497 };
 498
 499 struct fb_cursor_user {
 500         __u16 set;                      /* what to set */
 501         __u16 enable;                   /* cursor on/off */
 502         __u16 rop;                      /* bitop operation */
 503         const char __user *mask;        /* cursor mask bits */
 504         struct fbcurpos hot;            /* cursor hot spot */
 505         struct fb_image_user image;     /* Cursor image */
 506 };
 507
 508 /*
 509  * Register/unregister for framebuffer events
 510  */
 511
 512 /*      The resolution of the passed in fb_info about to change */
 513 #define FB_EVENT_MODE_CHANGE            0x01
 514 /*      The display on this fb_info is beeing suspended, no access to the
 515  *      framebuffer is allowed any more after that call returns
 516  */
 517 #define FB_EVENT_SUSPEND                0x02
 518 /*      The display on this fb_info was resumed, you can restore the display
 519  *      if you own it
 520  */
 521 #define FB_EVENT_RESUME                 0x03
 522 /*      An entry from the modelist was removed */
 523 #define FB_EVENT_MODE_DELETE            0x04
 524 /*      A driver registered itself */
 525 #define FB_EVENT_FB_REGISTERED          0x05
 526 /*      A driver unregistered itself */
 527 #define FB_EVENT_FB_UNREGISTERED        0x06
 528 /*      CONSOLE-SPECIFIC: get console to framebuffer mapping */
 529 #define FB_EVENT_GET_CONSOLE_MAP        0x07
 530 /*      CONSOLE-SPECIFIC: set console to framebuffer mapping */
 531 #define FB_EVENT_SET_CONSOLE_MAP        0x08
 532 /*      A hardware display blank change occured */
 533 #define FB_EVENT_BLANK                  0x09
 534 /*      Private modelist is to be replaced */
 535 #define FB_EVENT_NEW_MODELIST           0x0A
 536 /*      The resolution of the passed in fb_info about to change and
 537         all vc's should be changed         */
 538 #define FB_EVENT_MODE_CHANGE_ALL        0x0B
 539 /*      A software display blank change occured */
 540 #define FB_EVENT_CONBLANK               0x0C
 541 /*      Get drawing requirements        */
 542 #define FB_EVENT_GET_REQ                0x0D
 543 /*      Unbind from the console if possible */
 544 #define FB_EVENT_FB_UNBIND              0x0E
 545
 546 struct fb_event {
 547         struct fb_info *info;
 548         void *data;
 549 };
 550
 551 struct fb_blit_caps {
 552         u32 x;
 553         u32 y;
 554         u32 len;
 555         u32 flags;
 556 };
 557
 558 extern int fb_register_client(struct notifier_block *nb);
 559 extern int fb_unregister_client(struct notifier_block *nb);
 560 extern int fb_notifier_call_chain(unsigned long val, void *v);
 561 /*
 562  * Pixmap structure definition
 563  *
 564  * The purpose of this structure is to translate data
 565  * from the hardware independent format of fbdev to what
 566  * format the hardware needs.
 567  */
 568
 569 #define FB_PIXMAP_DEFAULT 1     /* used internally by fbcon */
 570 #define FB_PIXMAP_SYSTEM  2     /* memory is in system RAM  */
 571 #define FB_PIXMAP_IO      4     /* memory is iomapped       */
 572 #define FB_PIXMAP_SYNC    256   /* set if GPU can DMA       */
 573
 574 struct fb_pixmap {
 575         u8  *addr;              /* pointer to memory                    */
 576         u32 size;               /* size of buffer in bytes              */
 577         u32 offset;             /* current offset to buffer             */
 578         u32 buf_align;          /* byte alignment of each bitmap        */
 579         u32 scan_align;         /* alignment per scanline               */
 580         u32 access_align;       /* alignment per read/write (bits)      */
 581         u32 flags;              /* see FB_PIXMAP_*                      */
 582         u32 blit_x;             /* supported bit block dimensions (1-32)*/
 583         u32 blit_y;             /* Format: blit_x = 1 << (width - 1)    */
 584                                 /*         blit_y = 1 << (height - 1)   */
 585                                 /* if 0, will be set to 0xffffffff (all)*/
 586         /* access methods */
 587         void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size);
 588         void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size);
 589 };
 590
 591 #ifdef CONFIG_FB_DEFERRED_IO
 592 struct fb_deferred_io {
 593         /* delay between mkwrite and deferred handler */
 594         unsigned long delay;
 595         struct mutex lock; /* mutex that protects the page list */
 596         struct list_head pagelist; /* list of touched pages */
 597         /* callback */
 598         void (*deferred_io)(struct fb_info *info, struct list_head *pagelist);
 599 };
 600 #endif
 601
 602 /*
 603  * Frame buffer operations
 604  *
 605  * LOCKING NOTE: those functions must _ALL_ be called with the console
 606  * semaphore held, this is the only suitable locking mechanism we have
 607  * in 2.6. Some may be called at interrupt time at this point though.
 608  */
 609
 610 struct fb_ops {
 611         /* open/release and usage marking */
 612         struct module *owner;
 613         int (*fb_open)(struct fb_info *info, int user);
 614         int (*fb_release)(struct fb_info *info, int user);
 615
 616         /* For framebuffers with strange non linear layouts or that do not
 617          * work with normal memory mapped access
 618          */
 619         ssize_t (*fb_read)(struct fb_info *info, char __user *buf,
 620                            size_t count, loff_t *ppos);
 621         ssize_t (*fb_write)(struct fb_info *info, const char __user *buf,
 622                             size_t count, loff_t *ppos);
 623
 624         /* checks var and eventually tweaks it to something supported,
 625          * DO NOT MODIFY PAR */
 626         int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
 627
 628         /* set the video mode according to info->var */
 629         int (*fb_set_par)(struct fb_info *info);
 630
 631         /* set color register */
 632         int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green,
 633                             unsigned blue, unsigned transp, struct fb_info *info);
 634
 635         /* set color registers in batch */
 636         int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info);
 637
 638         /* blank display */
 639         int (*fb_blank)(int blank, struct fb_info *info);
 640
 641         /* pan display */
 642         int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info);
 643
 644         /* Draws a rectangle */
 645         void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);
 646         /* Copy data from area to another */
 647         void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);
 648         /* Draws a image to the display */
 649         void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
 650
 651         /* Draws cursor */
 652         int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
 653
 654         /* Rotates the display */
 655         void (*fb_rotate)(struct fb_info *info, int angle);
 656
 657         /* wait for blit idle, optional */
 658         int (*fb_sync)(struct fb_info *info);
 659
 660         /* perform fb specific ioctl (optional) */
 661         int (*fb_ioctl)(struct fb_info *info, unsigned int cmd,
 662                         unsigned long arg);
 663
 664         /* Handle 32bit compat ioctl (optional) */
 665         int (*fb_compat_ioctl)(struct fb_info *info, unsigned cmd,
 666                         unsigned long arg);
 667
 668         /* perform fb specific mmap */
 669         int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma);
 670
 671         /* save current hardware state */
 672         void (*fb_save_state)(struct fb_info *info);
 673
 674         /* restore saved state */
 675         void (*fb_restore_state)(struct fb_info *info);
 676
 677         /* get capability given var */
 678         void (*fb_get_caps)(struct fb_info *info, struct fb_blit_caps *caps,
 679                             struct fb_var_screeninfo *var);
 680
 681         /* teardown any resources to do with this framebuffer */
 682         void (*fb_destroy)(struct fb_info *info);
 683 };
 684
 685 #ifdef CONFIG_FB_TILEBLITTING
 686 #define FB_TILE_CURSOR_NONE        0
 687 #define FB_TILE_CURSOR_UNDERLINE   1
 688 #define FB_TILE_CURSOR_LOWER_THIRD 2
 689 #define FB_TILE_CURSOR_LOWER_HALF  3
 690 #define FB_TILE_CURSOR_TWO_THIRDS  4
 691 #define FB_TILE_CURSOR_BLOCK       5
 692
 693 struct fb_tilemap {
 694         __u32 width;                /* width of each tile in pixels */
 695         __u32 height;               /* height of each tile in scanlines */
 696         __u32 depth;                /* color depth of each tile */
 697         __u32 length;               /* number of tiles in the map */
 698         const __u8 *data;           /* actual tile map: a bitmap array, packed
 699                                        to the nearest byte */
 700 };
 701
 702 struct fb_tilerect {
 703         __u32 sx;                   /* origin in the x-axis */
 704         __u32 sy;                   /* origin in the y-axis */
 705         __u32 width;                /* number of tiles in the x-axis */
 706         __u32 height;               /* number of tiles in the y-axis */
 707         __u32 index;                /* what tile to use: index to tile map */
 708         __u32 fg;                   /* foreground color */
 709         __u32 bg;                   /* background color */
 710         __u32 rop;                  /* raster operation */
 711 };
 712
 713 struct fb_tilearea {
 714         __u32 sx;                   /* source origin in the x-axis */
 715         __u32 sy;                   /* source origin in the y-axis */
 716         __u32 dx;                   /* destination origin in the x-axis */
 717         __u32 dy;                   /* destination origin in the y-axis */
 718         __u32 width;                /* number of tiles in the x-axis */
 719         __u32 height;               /* number of tiles in the y-axis */
 720 };
 721
 722 struct fb_tileblit {
 723         __u32 sx;                   /* origin in the x-axis */
 724         __u32 sy;                   /* origin in the y-axis */
 725         __u32 width;                /* number of tiles in the x-axis */
 726         __u32 height;               /* number of tiles in the y-axis */
 727         __u32 fg;                   /* foreground color */
 728         __u32 bg;                   /* background color */
 729         __u32 length;               /* number of tiles to draw */
 730         __u32 *indices;             /* array of indices to tile map */
 731 };
 732
 733 struct fb_tilecursor {
 734         __u32 sx;                   /* cursor position in the x-axis */
 735         __u32 sy;                   /* cursor position in the y-axis */
 736         __u32 mode;                 /* 0 = erase, 1 = draw */
 737         __u32 shape;                /* see FB_TILE_CURSOR_* */
 738         __u32 fg;                   /* foreground color */
 739         __u32 bg;                   /* background color */
 740 };
 741
 742 struct fb_tile_ops {
 743         /* set tile characteristics */
 744         void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map);
 745
 746         /* all dimensions from hereon are in terms of tiles */
 747
 748         /* move a rectangular region of tiles from one area to another*/
 749         void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area);
 750         /* fill a rectangular region with a tile */
 751         void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect);
 752         /* copy an array of tiles */
 753         void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit);
 754         /* cursor */
 755         void (*fb_tilecursor)(struct fb_info *info,
 756                               struct fb_tilecursor *cursor);
 757         /* get maximum length of the tile map */
 758         int (*fb_get_tilemax)(struct fb_info *info);
 759 };
 760 #endif /* CONFIG_FB_TILEBLITTING */
 761
 762 /* FBINFO_* = fb_info.flags bit flags */
 763 #define FBINFO_MODULE           0x0001  /* Low-level driver is a module */
 764 #define FBINFO_HWACCEL_DISABLED 0x0002
 765         /* When FBINFO_HWACCEL_DISABLED is set:
 766          *  Hardware acceleration is turned off.  Software implementations
 767          *  of required functions (copyarea(), fillrect(), and imageblit())
 768          *  takes over; acceleration engine should be in a quiescent state */
 769
 770 /* hints */
 771 #define FBINFO_PARTIAL_PAN_OK   0x0040 /* otw use pan only for double-buffering */
 772 #define FBINFO_READS_FAST       0x0080 /* soft-copy faster than rendering */
 773
 774 /* hardware supported ops */
 775 /*  semantics: when a bit is set, it indicates that the operation is
 776  *   accelerated by hardware.
 777  *  required functions will still work even if the bit is not set.
 778  *  optional functions may not even exist if the flag bit is not set.
 779  */
 780 #define FBINFO_HWACCEL_NONE             0x0000
 781 #define FBINFO_HWACCEL_COPYAREA         0x0100 /* required */
 782 #define FBINFO_HWACCEL_FILLRECT         0x0200 /* required */
 783 #define FBINFO_HWACCEL_IMAGEBLIT        0x0400 /* required */
 784 #define FBINFO_HWACCEL_ROTATE           0x0800 /* optional */
 785 #define FBINFO_HWACCEL_XPAN             0x1000 /* optional */
 786 #define FBINFO_HWACCEL_YPAN             0x2000 /* optional */
 787 #define FBINFO_HWACCEL_YWRAP            0x4000 /* optional */
 788
 789 #define FBINFO_MISC_USEREVENT          0x10000 /* event request
 790                                                   from userspace */
 791 #define FBINFO_MISC_TILEBLITTING       0x20000 /* use tile blitting */
 792 #define FBINFO_MISC_FIRMWARE           0x40000 /* a replaceable firmware
 793                                                   inited framebuffer */
 794
 795 /* A driver may set this flag to indicate that it does want a set_par to be
 796  * called every time when fbcon_switch is executed. The advantage is that with
 797  * this flag set you can really be sure that set_par is always called before
 798  * any of the functions dependant on the correct hardware state or altering
 799  * that state, even if you are using some broken X releases. The disadvantage
 800  * is that it introduces unwanted delays to every console switch if set_par
 801  * is slow. It is a good idea to try this flag in the drivers initialization
 802  * code whenever there is a bug report related to switching between X and the
 803  * framebuffer console.
 804  */
 805 #define FBINFO_MISC_ALWAYS_SETPAR   0x40000
 806
 807 /*
 808  * Host and GPU endianness differ.
 809  */
 810 #define FBINFO_FOREIGN_ENDIAN   0x100000
 811 /*
 812  * Big endian math. This is the same flags as above, but with different
 813  * meaning, it is set by the fb subsystem depending FOREIGN_ENDIAN flag
 814  * and host endianness. Drivers should not use this flag.
 815  */
 816 #define FBINFO_BE_MATH  0x100000
 817
 818 struct fb_info {
 819         int node;
 820         int flags;
 821         struct mutex lock;              /* Lock for open/release/ioctl funcs */
 822         struct fb_var_screeninfo var;   /* Current var */
 823         struct fb_fix_screeninfo fix;   /* Current fix */
 824         struct fb_monspecs monspecs;    /* Current Monitor specs */
 825         struct work_struct queue;       /* Framebuffer event queue */
 826         struct fb_pixmap pixmap;        /* Image hardware mapper */
 827         struct fb_pixmap sprite;        /* Cursor hardware mapper */
 828         struct fb_cmap cmap;            /* Current cmap */
 829         struct list_head modelist;      /* mode list */
 830         struct fb_videomode *mode;      /* current mode */
 831
 832 #ifdef CONFIG_FB_BACKLIGHT
 833         /* assigned backlight device */
 834         /* set before framebuffer registration,
 835            remove after unregister */
 836         struct backlight_device *bl_dev;
 837
 838         /* Backlight level curve */
 839         struct mutex bl_curve_mutex;
 840         u8 bl_curve[FB_BACKLIGHT_LEVELS];
 841 #endif
 842 #ifdef CONFIG_FB_DEFERRED_IO
 843         struct delayed_work deferred_work;
 844         struct fb_deferred_io *fbdefio;
 845 #endif
 846
 847         struct fb_ops *fbops;
 848         struct device *device;          /* This is the parent */
 849         struct device *dev;             /* This is this fb device */
 850         int class_flag;                    /* private sysfs flags */
 851 #ifdef CONFIG_FB_TILEBLITTING
 852         struct fb_tile_ops *tileops;    /* Tile Blitting */
 853 #endif
 854         char __iomem *screen_base;      /* Virtual address */
 855         unsigned long screen_size;      /* Amount of ioremapped VRAM or 0 */
 856         void *pseudo_palette;           /* Fake palette of 16 colors */
 857 #define FBINFO_STATE_RUNNING    0
 858 #define FBINFO_STATE_SUSPENDED  1
 859         u32 state;                      /* Hardware state i.e suspend */
 860         void *fbcon_par;                /* fbcon use-only private area */
 861         /* From here on everything is device dependent */
 862         void *par;
 863         /* we need the PCI or similiar aperture base/size not
 864            smem_start/size as smem_start may just be an object
 865            allocated inside the aperture so may not actually overlap */
 866         resource_size_t aperture_base;
 867         resource_size_t aperture_size;
 868 };
 869
 870 #ifdef MODULE
 871 #define FBINFO_DEFAULT  FBINFO_MODULE
 872 #else
 873 #define FBINFO_DEFAULT  0
 874 #endif
 875
 876 // This will go away
 877 #define FBINFO_FLAG_MODULE      FBINFO_MODULE
 878 #define FBINFO_FLAG_DEFAULT     FBINFO_DEFAULT
 879
 880 /* This will go away
 881  * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags
 882  * when it wants to turn the acceleration engine on.  This is
 883  * really a separate operation, and should be modified via sysfs.
 884  *  But for now, we leave it broken with the following define
 885  */
 886 #define STUPID_ACCELF_TEXT_SHIT
 887
 888 // This will go away
 889 #if defined(__sparc__)
 890
 891 /* We map all of our framebuffers such that big-endian accesses
 892  * are what we want, so the following is sufficient.
 893  */
 894
 895 // This will go away
 896 #define fb_readb sbus_readb
 897 #define fb_readw sbus_readw
 898 #define fb_readl sbus_readl
 899 #define fb_readq sbus_readq
 900 #define fb_writeb sbus_writeb
 901 #define fb_writew sbus_writew
 902 #define fb_writel sbus_writel
 903 #define fb_writeq sbus_writeq
 904 #define fb_memset sbus_memset_io
 905
 906 #elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || defined(__sh__) || defined(__powerpc__) || defined(__avr32__) || defined(__bfin__)
 907
 908 #define fb_readb __raw_readb
 909 #define fb_readw __raw_readw
 910 #define fb_readl __raw_readl
 911 #define fb_readq __raw_readq
 912 #define fb_writeb __raw_writeb
 913 #define fb_writew __raw_writew
 914 #define fb_writel __raw_writel
 915 #define fb_writeq __raw_writeq
 916 #define fb_memset memset_io
 917
 918 #else
 919
 920 #define fb_readb(addr) (*(volatile u8 *) (addr))
 921 #define fb_readw(addr) (*(volatile u16 *) (addr))
 922 #define fb_readl(addr) (*(volatile u32 *) (addr))
 923 #define fb_readq(addr) (*(volatile u64 *) (addr))
 924 #define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
 925 #define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
 926 #define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
 927 #define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b))
 928 #define fb_memset memset
 929
 930 #endif
 931
 932 #define FB_LEFT_POS(p, bpp)          (fb_be_math(p) ? (32 - (bpp)) : 0)
 933 #define FB_SHIFT_HIGH(p, val, bits)  (fb_be_math(p) ? (val) >> (bits) : \
 934                                                       (val) << (bits))
 935 #define FB_SHIFT_LOW(p, val, bits)   (fb_be_math(p) ? (val) << (bits) : \
 936                                                       (val) >> (bits))
 937
 938     /*
 939      *  `Generic' versions of the frame buffer device operations
 940      */
 941
 942 extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var);
 943 extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var);
 944 extern int fb_blank(struct fb_info *info, int blank);
 945 extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
 946 extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
 947 extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image);
 948 /*
 949  * Drawing operations where framebuffer is in system RAM
 950  */
 951 extern void sys_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
 952 extern void sys_copyarea(struct fb_info *info, const struct fb_copyarea *area);
 953 extern void sys_imageblit(struct fb_info *info, const struct fb_image *image);
 954 extern ssize_t fb_sys_read(struct fb_info *info, char __user *buf,
 955                            size_t count, loff_t *ppos);
 956 extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
 957                             size_t count, loff_t *ppos);
 958
 959 /* drivers/video/fbmem.c */
 960 extern int register_framebuffer(struct fb_info *fb_info);
 961 extern int unregister_framebuffer(struct fb_info *fb_info);
 962 extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
 963 extern int fb_show_logo(struct fb_info *fb_info, int rotate);
 964 extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);
 965 extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx,
 966                                 u32 height, u32 shift_high, u32 shift_low, u32 mod);
 967 extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height);
 968 extern void fb_set_suspend(struct fb_info *info, int state);
 969 extern int fb_get_color_depth(struct fb_var_screeninfo *var,
 970                               struct fb_fix_screeninfo *fix);
 971 extern int fb_get_options(char *name, char **option);
 972 extern int fb_new_modelist(struct fb_info *info);
 973
 974 extern struct fb_info *registered_fb[FB_MAX];
 975 extern int num_registered_fb;
 976 extern struct class *fb_class;
 977
 978 extern int lock_fb_info(struct fb_info *info);
 979
 980 static inline void unlock_fb_info(struct fb_info *info)
 981 {
 982         mutex_unlock(&info->lock);
 983 }
 984
 985 static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch,
 986                                            u8 *src, u32 s_pitch, u32 height)
 987 {
 988         int i, j;
 989
 990         d_pitch -= s_pitch;
 991
 992         for (i = height; i--; ) {
 993                 /* s_pitch is a few bytes at the most, memcpy is suboptimal */
 994                 for (j = 0; j < s_pitch; j++)
 995                         *dst++ = *src++;
 996                 dst += d_pitch;
 997         }
 998 }
 999
1000 /* drivers/video/fb_defio.c */
1001 extern void fb_deferred_io_init(struct fb_info *info);
1002 extern void fb_deferred_io_open(struct fb_info *info,
1003                                 struct inode *inode,
1004                                 struct file *file);
1005 extern void fb_deferred_io_cleanup(struct fb_info *info);
1006 extern int fb_deferred_io_fsync(struct file *file, struct dentry *dentry,
1007                                 int datasync);
1008
1009 static inline bool fb_be_math(struct fb_info *info)
1010 {
1011 #ifdef CONFIG_FB_FOREIGN_ENDIAN
1012 #if defined(CONFIG_FB_BOTH_ENDIAN)
1013         return info->flags & FBINFO_BE_MATH;
1014 #elif defined(CONFIG_FB_BIG_ENDIAN)
1015         return true;
1016 #elif defined(CONFIG_FB_LITTLE_ENDIAN)
1017         return false;
1018 #endif /* CONFIG_FB_BOTH_ENDIAN */
1019 #else
1020 #ifdef __BIG_ENDIAN
1021         return true;
1022 #else
1023         return false;
1024 #endif /* __BIG_ENDIAN */
1025 #endif /* CONFIG_FB_FOREIGN_ENDIAN */
1026 }
1027
1028 /* drivers/video/fbsysfs.c */
1029 extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);
1030 extern void framebuffer_release(struct fb_info *info);
1031 extern int fb_init_device(struct fb_info *fb_info);
1032 extern void fb_cleanup_device(struct fb_info *head);
1033 extern void fb_bl_default_curve(struct fb_info *fb_info, u8 off, u8 min, u8 max);
1034
1035 /* drivers/video/fbmon.c */
1036 #define FB_MAXTIMINGS           0
1037 #define FB_VSYNCTIMINGS         1
1038 #define FB_HSYNCTIMINGS         2
1039 #define FB_DCLKTIMINGS          3
1040 #define FB_IGNOREMON            0x100
1041
1042 #define FB_MODE_IS_UNKNOWN      0
1043 #define FB_MODE_IS_DETAILED     1
1044 #define FB_MODE_IS_STANDARD     2
1045 #define FB_MODE_IS_VESA         4
1046 #define FB_MODE_IS_CALCULATED   8
1047 #define FB_MODE_IS_FIRST        16
1048 #define FB_MODE_IS_FROM_VAR     32
1049
1050 extern int fbmon_dpms(const struct fb_info *fb_info);
1051 extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var,
1052                        struct fb_info *info);
1053 extern int fb_validate_mode(const struct fb_var_screeninfo *var,
1054                             struct fb_info *info);
1055 extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);
1056 extern const unsigned char *fb_firmware_edid(struct device *device);
1057 extern void fb_edid_to_monspecs(unsigned char *edid,
1058                                 struct fb_monspecs *specs);
1059 extern void fb_destroy_modedb(struct fb_videomode *modedb);
1060 extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb);
1061 extern unsigned char *fb_ddc_read(struct i2c_adapter *adapter);
1062
1063 /* drivers/video/modedb.c */
1064 #define VESA_MODEDB_SIZE 34
1065 extern void fb_var_to_videomode(struct fb_videomode *mode,
1066                                 const struct fb_var_screeninfo *var);
1067 extern void fb_videomode_to_var(struct fb_var_screeninfo *var,
1068                                 const struct fb_videomode *mode);
1069 extern int fb_mode_is_equal(const struct fb_videomode *mode1,
1070                             const struct fb_videomode *mode2);
1071 extern int fb_add_videomode(const struct fb_videomode *mode,
1072                             struct list_head *head);
1073 extern void fb_delete_videomode(const struct fb_videomode *mode,
1074                                 struct list_head *head);
1075 extern const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var,
1076                                                 struct list_head *head);
1077 extern const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var,
1078                                                     struct list_head *head);
1079 extern const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode,
1080                                                        struct list_head *head);
1081 extern void fb_destroy_modelist(struct list_head *head);
1082 extern void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num,
1083                                      struct list_head *head);
1084 extern const struct fb_videomode *fb_find_best_display(const struct fb_monspecs *specs,
1085                                                        struct list_head *head);
1086
1087 /* drivers/video/fbcmap.c */
1088 extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);
1089 extern void fb_dealloc_cmap(struct fb_cmap *cmap);
1090 extern int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to);
1091 extern int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to);
1092 extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info);
1093 extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info);
1094 extern const struct fb_cmap *fb_default_cmap(int len);
1095 extern void fb_invert_cmaps(void);
1096
1097 struct fb_videomode {
1098         const char *name;       /* optional */
1099         u32 refresh;            /* optional */
1100         u32 xres;
1101         u32 yres;
1102         u32 pixclock;
1103         u32 left_margin;
1104         u32 right_margin;
1105         u32 upper_margin;
1106         u32 lower_margin;
1107         u32 hsync_len;
1108         u32 vsync_len;
1109         u32 sync;
1110         u32 vmode;
1111         u32 flag;
1112 };
1113
1114 extern const char *fb_mode_option;
1115 extern const struct fb_videomode vesa_modes[];
1116
1117 struct fb_modelist {
1118         struct list_head list;
1119         struct fb_videomode mode;
1120 };
1121
1122 extern int fb_find_mode(struct fb_var_screeninfo *var,
1123                         struct fb_info *info, const char *mode_option,
1124                         const struct fb_videomode *db,
1125                         unsigned int dbsize,
1126                         const struct fb_videomode *default_mode,
1127                         unsigned int default_bpp);
1128
1129 #endif /* __KERNEL__ */
1130
1131 #endif /* _LINUX_FB_H */