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 #ifdef __KERNEL__
   7 #include <linux/kgdb.h>
   8 #endif /* __KERNEL__ */
   9
  10 /* Definitions of frame buffers                                         */
  11
  12 #define FB_MAX                  32      /* sufficient for now */
  13
  14 /* ioctls
  15    0x46 is 'F'                                                          */
  16 #define FBIOGET_VSCREENINFO     0x4600
  17 #define FBIOPUT_VSCREENINFO     0x4601
  18 #define FBIOGET_FSCREENINFO     0x4602
  19 #define FBIOGETCMAP             0x4604
  20 #define FBIOPUTCMAP             0x4605
  21 #define FBIOPAN_DISPLAY         0x4606
  22 #ifdef __KERNEL__
  23 #define FBIO_CURSOR            _IOWR('F', 0x08, struct fb_cursor_user)
  24 #else
  25 #define FBIO_CURSOR            _IOWR('F', 0x08, struct fb_cursor)
  26 #endif
  27 /* 0x4607-0x460B are defined below */
  28 /* #define FBIOGET_MONITORSPEC  0x460C */
  29 /* #define FBIOPUT_MONITORSPEC  0x460D */
  30 /* #define FBIOSWITCH_MONIBIT   0x460E */
  31 #define FBIOGET_CON2FBMAP       0x460F
  32 #define FBIOPUT_CON2FBMAP       0x4610
  33 #define FBIOBLANK               0x4611          /* arg: 0 or vesa level + 1 */
  34 #define FBIOGET_VBLANK          _IOR('F', 0x12, struct fb_vblank)
  35 #define FBIO_ALLOC              0x4613
  36 #define FBIO_FREE               0x4614
  37 #define FBIOGET_GLYPH           0x4615
  38 #define FBIOGET_HWCINFO         0x4616
  39 #define FBIOPUT_MODEINFO        0x4617
  40 #define FBIOGET_DISPINFO        0x4618
  41 #define FBIO_WAITFORVSYNC       _IOW('F', 0x20, __u32)
  42
  43 #define FB_TYPE_PACKED_PIXELS           0       /* Packed Pixels        */
  44 #define FB_TYPE_PLANES                  1       /* Non interleaved planes */
  45 #define FB_TYPE_INTERLEAVED_PLANES      2       /* Interleaved planes   */
  46 #define FB_TYPE_TEXT                    3       /* Text/attributes      */
  47 #define FB_TYPE_VGA_PLANES              4       /* EGA/VGA planes       */
  48
  49 #define FB_AUX_TEXT_MDA         0       /* Monochrome text */
  50 #define FB_AUX_TEXT_CGA         1       /* CGA/EGA/VGA Color text */
  51 #define FB_AUX_TEXT_S3_MMIO     2       /* S3 MMIO fasttext */
  52 #define FB_AUX_TEXT_MGA_STEP16  3       /* MGA Millenium I: text, attr, 14 reserved bytes */
  53 #define FB_AUX_TEXT_MGA_STEP8   4       /* other MGAs:      text, attr,  6 reserved bytes */
  54 #define FB_AUX_TEXT_SVGA_GROUP  8       /* 8-15: SVGA tileblit compatible modes */
  55 #define FB_AUX_TEXT_SVGA_MASK   7       /* lower three bits says step */
  56 #define FB_AUX_TEXT_SVGA_STEP2  8       /* SVGA text mode:  text, attr */
  57 #define FB_AUX_TEXT_SVGA_STEP4  9       /* SVGA text mode:  text, attr,  2 reserved bytes */
  58 #define FB_AUX_TEXT_SVGA_STEP8  10      /* SVGA text mode:  text, attr,  6 reserved bytes */
  59 #define FB_AUX_TEXT_SVGA_STEP16 11      /* SVGA text mode:  text, attr, 14 reserved bytes */
  60 #define FB_AUX_TEXT_SVGA_LAST   15      /* reserved up to 15 */
  61
  62 #define FB_AUX_VGA_PLANES_VGA4          0       /* 16 color planes (EGA/VGA) */
  63 #define FB_AUX_VGA_PLANES_CFB4          1       /* CFB4 in planes (VGA) */
  64 #define FB_AUX_VGA_PLANES_CFB8          2       /* CFB8 in planes (VGA) */
  65
  66 #define FB_VISUAL_MONO01                0       /* Monochr. 1=Black 0=White */
  67 #define FB_VISUAL_MONO10                1       /* Monochr. 1=White 0=Black */
  68 #define FB_VISUAL_TRUECOLOR             2       /* True color   */
  69 #define FB_VISUAL_PSEUDOCOLOR           3       /* Pseudo color (like atari) */
  70 #define FB_VISUAL_DIRECTCOLOR           4       /* Direct color */
  71 #define FB_VISUAL_STATIC_PSEUDOCOLOR    5       /* Pseudo color readonly */
  72
  73 #define FB_ACCEL_NONE           0       /* no hardware accelerator      */
  74 #define FB_ACCEL_ATARIBLITT     1       /* Atari Blitter                */
  75 #define FB_ACCEL_AMIGABLITT     2       /* Amiga Blitter                */
  76 #define FB_ACCEL_S3_TRIO64      3       /* Cybervision64 (S3 Trio64)    */
  77 #define FB_ACCEL_NCR_77C32BLT   4       /* RetinaZ3 (NCR 77C32BLT)      */
  78 #define FB_ACCEL_S3_VIRGE       5       /* Cybervision64/3D (S3 ViRGE)  */
  79 #define FB_ACCEL_ATI_MACH64GX   6       /* ATI Mach 64GX family         */
  80 #define FB_ACCEL_DEC_TGA        7       /* DEC 21030 TGA                */
  81 #define FB_ACCEL_ATI_MACH64CT   8       /* ATI Mach 64CT family         */
  82 #define FB_ACCEL_ATI_MACH64VT   9       /* ATI Mach 64CT family VT class */
  83 #define FB_ACCEL_ATI_MACH64GT   10      /* ATI Mach 64CT family GT class */
  84 #define FB_ACCEL_SUN_CREATOR    11      /* Sun Creator/Creator3D        */
  85 #define FB_ACCEL_SUN_CGSIX      12      /* Sun cg6                      */
  86 #define FB_ACCEL_SUN_LEO        13      /* Sun leo/zx                   */
  87 #define FB_ACCEL_IMS_TWINTURBO  14      /* IMS Twin Turbo               */
  88 #define FB_ACCEL_3DLABS_PERMEDIA2 15    /* 3Dlabs Permedia 2            */
  89 #define FB_ACCEL_MATROX_MGA2064W 16     /* Matrox MGA2064W (Millenium)  */
  90 #define FB_ACCEL_MATROX_MGA1064SG 17    /* Matrox MGA1064SG (Mystique)  */
  91 #define FB_ACCEL_MATROX_MGA2164W 18     /* Matrox MGA2164W (Millenium II) */
  92 #define FB_ACCEL_MATROX_MGA2164W_AGP 19 /* Matrox MGA2164W (Millenium II) */
  93 #define FB_ACCEL_MATROX_MGAG100 20      /* Matrox G100 (Productiva G100) */
  94 #define FB_ACCEL_MATROX_MGAG200 21      /* Matrox G200 (Myst, Mill, ...) */
  95 #define FB_ACCEL_SUN_CG14       22      /* Sun cgfourteen                */
  96 #define FB_ACCEL_SUN_BWTWO      23      /* Sun bwtwo                    */
  97 #define FB_ACCEL_SUN_CGTHREE    24      /* Sun cgthree                  */
  98 #define FB_ACCEL_SUN_TCX        25      /* Sun tcx                      */
  99 #define FB_ACCEL_MATROX_MGAG400 26      /* Matrox G400                  */
 100 #define FB_ACCEL_NV3            27      /* nVidia RIVA 128              */
 101 #define FB_ACCEL_NV4            28      /* nVidia RIVA TNT              */
 102 #define FB_ACCEL_NV5            29      /* nVidia RIVA TNT2             */
 103 #define FB_ACCEL_CT_6555x       30      /* C&T 6555x                    */
 104 #define FB_ACCEL_3DFX_BANSHEE   31      /* 3Dfx Banshee                 */
 105 #define FB_ACCEL_ATI_RAGE128    32      /* ATI Rage128 family           */
 106 #define FB_ACCEL_IGS_CYBER2000  33      /* CyberPro 2000                */
 107 #define FB_ACCEL_IGS_CYBER2010  34      /* CyberPro 2010                */
 108 #define FB_ACCEL_IGS_CYBER5000  35      /* CyberPro 5000                */
 109 #define FB_ACCEL_SIS_GLAMOUR    36      /* SiS 300/630/540              */
 110 #define FB_ACCEL_3DLABS_PERMEDIA3 37    /* 3Dlabs Permedia 3            */
 111 #define FB_ACCEL_ATI_RADEON     38      /* ATI Radeon family            */
 112 #define FB_ACCEL_I810           39      /* Intel 810/815                */
 113 #define FB_ACCEL_SIS_GLAMOUR_2  40      /* SiS 315, 650, 740            */
 114 #define FB_ACCEL_SIS_XABRE      41      /* SiS 330 ("Xabre")            */
 115 #define FB_ACCEL_I830           42      /* Intel 830M/845G/85x/865G     */
 116 #define FB_ACCEL_NV_10          43      /* nVidia Arch 10               */
 117 #define FB_ACCEL_NV_20          44      /* nVidia Arch 20               */
 118 #define FB_ACCEL_NV_30          45      /* nVidia Arch 30               */
 119 #define FB_ACCEL_NV_40          46      /* nVidia Arch 40               */
 120 #define FB_ACCEL_XGI_VOLARI_V   47      /* XGI Volari V3XT, V5, V8      */
 121 #define FB_ACCEL_XGI_VOLARI_Z   48      /* XGI Volari Z7                */
 122 #define FB_ACCEL_OMAP1610       49      /* TI OMAP16xx                  */
 123 #define FB_ACCEL_TRIDENT_TGUI   50      /* Trident TGUI                 */
 124 #define FB_ACCEL_TRIDENT_3DIMAGE 51     /* Trident 3DImage              */
 125 #define FB_ACCEL_TRIDENT_BLADE3D 52     /* Trident Blade3D              */
 126 #define FB_ACCEL_TRIDENT_BLADEXP 53     /* Trident BladeXP              */
 127 #define FB_ACCEL_CIRRUS_ALPINE   53     /* Cirrus Logic 543x/544x/5480  */
 128 #define FB_ACCEL_NEOMAGIC_NM2070 90     /* NeoMagic NM2070              */
 129 #define FB_ACCEL_NEOMAGIC_NM2090 91     /* NeoMagic NM2090              */
 130 #define FB_ACCEL_NEOMAGIC_NM2093 92     /* NeoMagic NM2093              */
 131 #define FB_ACCEL_NEOMAGIC_NM2097 93     /* NeoMagic NM2097              */
 132 #define FB_ACCEL_NEOMAGIC_NM2160 94     /* NeoMagic NM2160              */
 133 #define FB_ACCEL_NEOMAGIC_NM2200 95     /* NeoMagic NM2200              */
 134 #define FB_ACCEL_NEOMAGIC_NM2230 96     /* NeoMagic NM2230              */
 135 #define FB_ACCEL_NEOMAGIC_NM2360 97     /* NeoMagic NM2360              */
 136 #define FB_ACCEL_NEOMAGIC_NM2380 98     /* NeoMagic NM2380              */
 137 #define FB_ACCEL_PXA3XX          99     /* PXA3xx                       */
 138
 139 #define FB_ACCEL_SAVAGE4        0x80    /* S3 Savage4                   */
 140 #define FB_ACCEL_SAVAGE3D       0x81    /* S3 Savage3D                  */
 141 #define FB_ACCEL_SAVAGE3D_MV    0x82    /* S3 Savage3D-MV               */
 142 #define FB_ACCEL_SAVAGE2000     0x83    /* S3 Savage2000                */
 143 #define FB_ACCEL_SAVAGE_MX_MV   0x84    /* S3 Savage/MX-MV              */
 144 #define FB_ACCEL_SAVAGE_MX      0x85    /* S3 Savage/MX                 */
 145 #define FB_ACCEL_SAVAGE_IX_MV   0x86    /* S3 Savage/IX-MV              */
 146 #define FB_ACCEL_SAVAGE_IX      0x87    /* S3 Savage/IX                 */
 147 #define FB_ACCEL_PROSAVAGE_PM   0x88    /* S3 ProSavage PM133           */
 148 #define FB_ACCEL_PROSAVAGE_KM   0x89    /* S3 ProSavage KM133           */
 149 #define FB_ACCEL_S3TWISTER_P    0x8a    /* S3 Twister                   */
 150 #define FB_ACCEL_S3TWISTER_K    0x8b    /* S3 TwisterK                  */
 151 #define FB_ACCEL_SUPERSAVAGE    0x8c    /* S3 Supersavage               */
 152 #define FB_ACCEL_PROSAVAGE_DDR  0x8d    /* S3 ProSavage DDR             */
 153 #define FB_ACCEL_PROSAVAGE_DDRK 0x8e    /* S3 ProSavage DDR-K           */
 154
 155 #define FB_ACCEL_PUV3_UNIGFX    0xa0    /* PKUnity-v3 Unigfx            */
 156
 157 struct fb_fix_screeninfo {
 158         char id[16];                    /* identification string eg "TT Builtin" */
 159         unsigned long smem_start;       /* Start of frame buffer mem */
 160                                         /* (physical address) */
 161         __u32 smem_len;                 /* Length of frame buffer mem */
 162         __u32 type;                     /* see FB_TYPE_*                */
 163         __u32 type_aux;                 /* Interleave for interleaved Planes */
 164         __u32 visual;                   /* see FB_VISUAL_*              */
 165         __u16 xpanstep;                 /* zero if no hardware panning  */
 166         __u16 ypanstep;                 /* zero if no hardware panning  */
 167         __u16 ywrapstep;                /* zero if no hardware ywrap    */
 168         __u32 line_length;              /* length of a line in bytes    */
 169         unsigned long mmio_start;       /* Start of Memory Mapped I/O   */
 170                                         /* (physical address) */
 171         __u32 mmio_len;                 /* Length of Memory Mapped I/O  */
 172         __u32 accel;                    /* Indicate to driver which     */
 173                                         /*  specific chip/card we have  */
 174         __u16 reserved[3];              /* Reserved for future compatibility */
 175 };
 176
 177 /* Interpretation of offset for color fields: All offsets are from the right,
 178  * inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
 179  * can use the offset as right argument to <<). A pixel afterwards is a bit
 180  * stream and is written to video memory as that unmodified.
 181  *
 182  * For pseudocolor: offset and length should be the same for all color
 183  * components. Offset specifies the position of the least significant bit
 184  * of the pallette index in a pixel value. Length indicates the number
 185  * of available palette entries (i.e. # of entries = 1 << length).
 186  */
 187 struct fb_bitfield {
 188         __u32 offset;                   /* beginning of bitfield        */
 189         __u32 length;                   /* length of bitfield           */
 190         __u32 msb_right;                /* != 0 : Most significant bit is */
 191                                         /* right */
 192 };
 193
 194 #define FB_NONSTD_HAM           1       /* Hold-And-Modify (HAM)        */
 195 #define FB_NONSTD_REV_PIX_IN_B  2       /* order of pixels in each byte is reversed */
 196
 197 #define FB_ACTIVATE_NOW         0       /* set values immediately (or vbl)*/
 198 #define FB_ACTIVATE_NXTOPEN     1       /* activate on next open        */
 199 #define FB_ACTIVATE_TEST        2       /* don't set, round up impossible */
 200 #define FB_ACTIVATE_MASK       15
 201                                         /* values                       */
 202 #define FB_ACTIVATE_VBL        16       /* activate values on next vbl  */
 203 #define FB_CHANGE_CMAP_VBL     32       /* change colormap on vbl       */
 204 #define FB_ACTIVATE_ALL        64       /* change all VCs on this fb    */
 205 #define FB_ACTIVATE_FORCE     128       /* force apply even when no change*/
 206 #define FB_ACTIVATE_INV_MODE  256       /* invalidate videomode */
 207
 208 #define FB_ACCELF_TEXT          1       /* (OBSOLETE) see fb_info.flags and vc_mode */
 209
 210 #define FB_SYNC_HOR_HIGH_ACT    1       /* horizontal sync high active  */
 211 #define FB_SYNC_VERT_HIGH_ACT   2       /* vertical sync high active    */
 212 #define FB_SYNC_EXT             4       /* external sync                */
 213 #define FB_SYNC_COMP_HIGH_ACT   8       /* composite sync high active   */
 214 #define FB_SYNC_BROADCAST       16      /* broadcast video timings      */
 215                                         /* vtotal = 144d/288n/576i => PAL  */
 216                                         /* vtotal = 121d/242n/484i => NTSC */
 217 #define FB_SYNC_ON_GREEN        32      /* sync on green */
 218
 219 #define FB_VMODE_NONINTERLACED  0       /* non interlaced */
 220 #define FB_VMODE_INTERLACED     1       /* interlaced   */
 221 #define FB_VMODE_DOUBLE         2       /* double scan */
 222 #define FB_VMODE_ODD_FLD_FIRST  4       /* interlaced: top line first */
 223 #define FB_VMODE_MASK           255
 224
 225 #define FB_VMODE_YWRAP          256     /* ywrap instead of panning     */
 226 #define FB_VMODE_SMOOTH_XPAN    512     /* smooth xpan possible (internally used) */
 227 #define FB_VMODE_CONUPDATE      512     /* don't update x/yoffset       */
 228
 229 /*
 230  * Display rotation support
 231  */
 232 #define FB_ROTATE_UR      0
 233 #define FB_ROTATE_CW      1
 234 #define FB_ROTATE_UD      2
 235 #define FB_ROTATE_CCW     3
 236
 237 #define PICOS2KHZ(a) (1000000000UL/(a))
 238 #define KHZ2PICOS(a) (1000000000UL/(a))
 239
 240 struct fb_var_screeninfo {
 241         __u32 xres;                     /* visible resolution           */
 242         __u32 yres;
 243         __u32 xres_virtual;             /* virtual resolution           */
 244         __u32 yres_virtual;
 245         __u32 xoffset;                  /* offset from virtual to visible */
 246         __u32 yoffset;                  /* resolution                   */
 247
 248         __u32 bits_per_pixel;           /* guess what                   */
 249         __u32 grayscale;                /* != 0 Graylevels instead of colors */
 250
 251         struct fb_bitfield red;         /* bitfield in fb mem if true color, */
 252         struct fb_bitfield green;       /* else only length is significant */
 253         struct fb_bitfield blue;
 254         struct fb_bitfield transp;      /* transparency                 */
 255
 256         __u32 nonstd;                   /* != 0 Non standard pixel format */
 257
 258         __u32 activate;                 /* see FB_ACTIVATE_*            */
 259
 260         __u32 height;                   /* height of picture in mm    */
 261         __u32 width;                    /* width of picture in mm     */
 262
 263         __u32 accel_flags;              /* (OBSOLETE) see fb_info.flags */
 264
 265         /* Timing: All values in pixclocks, except pixclock (of course) */
 266         __u32 pixclock;                 /* pixel clock in ps (pico seconds) */
 267         __u32 left_margin;              /* time from sync to picture    */
 268         __u32 right_margin;             /* time from picture to sync    */
 269         __u32 upper_margin;             /* time from sync to picture    */
 270         __u32 lower_margin;
 271         __u32 hsync_len;                /* length of horizontal sync    */
 272         __u32 vsync_len;                /* length of vertical sync      */
 273         __u32 sync;                     /* see FB_SYNC_*                */
 274         __u32 vmode;                    /* see FB_VMODE_*               */
 275         __u32 rotate;                   /* angle we rotate counter clockwise */
 276         __u32 reserved[5];              /* Reserved for future compatibility */
 277 };
 278
 279 struct fb_cmap {
 280         __u32 start;                    /* First entry  */
 281         __u32 len;                      /* Number of entries */
 282         __u16 *red;                     /* Red values   */
 283         __u16 *green;
 284         __u16 *blue;
 285         __u16 *transp;                  /* transparency, can be NULL */
 286 };
 287
 288 struct fb_con2fbmap {
 289         __u32 console;
 290         __u32 framebuffer;
 291 };
 292
 293 /* VESA Blanking Levels */
 294 #define VESA_NO_BLANKING        0
 295 #define VESA_VSYNC_SUSPEND      1
 296 #define VESA_HSYNC_SUSPEND      2
 297 #define VESA_POWERDOWN          3
 298
 299
 300 enum {
 301         /* screen: unblanked, hsync: on,  vsync: on */
 302         FB_BLANK_UNBLANK       = VESA_NO_BLANKING,
 303
 304         /* screen: blanked,   hsync: on,  vsync: on */
 305         FB_BLANK_NORMAL        = VESA_NO_BLANKING + 1,
 306
 307         /* screen: blanked,   hsync: on,  vsync: off */
 308         FB_BLANK_VSYNC_SUSPEND = VESA_VSYNC_SUSPEND + 1,
 309
 310         /* screen: blanked,   hsync: off, vsync: on */
 311         FB_BLANK_HSYNC_SUSPEND = VESA_HSYNC_SUSPEND + 1,
 312
 313         /* screen: blanked,   hsync: off, vsync: off */
 314         FB_BLANK_POWERDOWN     = VESA_POWERDOWN + 1
 315 };
 316
 317 #define FB_VBLANK_VBLANKING     0x001   /* currently in a vertical blank */
 318 #define FB_VBLANK_HBLANKING     0x002   /* currently in a horizontal blank */
 319 #define FB_VBLANK_HAVE_VBLANK   0x004   /* vertical blanks can be detected */
 320 #define FB_VBLANK_HAVE_HBLANK   0x008   /* horizontal blanks can be detected */
 321 #define FB_VBLANK_HAVE_COUNT    0x010   /* global retrace counter is available */
 322 #define FB_VBLANK_HAVE_VCOUNT   0x020   /* the vcount field is valid */
 323 #define FB_VBLANK_HAVE_HCOUNT   0x040   /* the hcount field is valid */
 324 #define FB_VBLANK_VSYNCING      0x080   /* currently in a vsync */
 325 #define FB_VBLANK_HAVE_VSYNC    0x100   /* verical syncs can be detected */
 326
 327 struct fb_vblank {
 328         __u32 flags;                    /* FB_VBLANK flags */
 329         __u32 count;                    /* counter of retraces since boot */
 330         __u32 vcount;                   /* current scanline position */
 331         __u32 hcount;                   /* current scandot position */
 332         __u32 reserved[4];              /* reserved for future compatibility */
 333 };
 334
 335 /* Internal HW accel */
 336 #define ROP_COPY 0
 337 #define ROP_XOR  1
 338
 339 struct fb_copyarea {
 340         __u32 dx;
 341         __u32 dy;
 342         __u32 width;
 343         __u32 height;
 344         __u32 sx;
 345         __u32 sy;
 346 };
 347
 348 struct fb_fillrect {
 349         __u32 dx;       /* screen-relative */
 350         __u32 dy;
 351         __u32 width;
 352         __u32 height;
 353         __u32 color;
 354         __u32 rop;
 355 };
 356
 357 struct fb_image {
 358         __u32 dx;               /* Where to place image */
 359         __u32 dy;
 360         __u32 width;            /* Size of image */
 361         __u32 height;
 362         __u32 fg_color;         /* Only used when a mono bitmap */
 363         __u32 bg_color;
 364         __u8  depth;            /* Depth of the image */
 365         const char *data;       /* Pointer to image data */
 366         struct fb_cmap cmap;    /* color map info */
 367 };
 368
 369 /*
 370  * hardware cursor control
 371  */
 372
 373 #define FB_CUR_SETIMAGE 0x01
 374 #define FB_CUR_SETPOS   0x02
 375 #define FB_CUR_SETHOT   0x04
 376 #define FB_CUR_SETCMAP  0x08
 377 #define FB_CUR_SETSHAPE 0x10
 378 #define FB_CUR_SETSIZE  0x20
 379 #define FB_CUR_SETALL   0xFF
 380
 381 struct fbcurpos {
 382         __u16 x, y;
 383 };
 384
 385 struct fb_cursor {
 386         __u16 set;              /* what to set */
 387         __u16 enable;           /* cursor on/off */
 388         __u16 rop;              /* bitop operation */
 389         const char *mask;       /* cursor mask bits */
 390         struct fbcurpos hot;    /* cursor hot spot */
 391         struct fb_image image;  /* Cursor image */
 392 };
 393
 394 #ifdef CONFIG_FB_BACKLIGHT
 395 /* Settings for the generic backlight code */
 396 #define FB_BACKLIGHT_LEVELS     128
 397 #define FB_BACKLIGHT_MAX        0xFF
 398 #endif
 399
 400 #ifdef __KERNEL__
 401
 402 #include <linux/fs.h>
 403 #include <linux/init.h>
 404 #include <linux/device.h>
 405 #include <linux/workqueue.h>
 406 #include <linux/notifier.h>
 407 #include <linux/list.h>
 408 #include <linux/backlight.h>
 409 #include <linux/slab.h>
 410 #include <asm/io.h>
 411
 412 struct vm_area_struct;
 413 struct fb_info;
 414 struct device;
 415 struct file;
 416
 417 /* Definitions below are used in the parsed monitor specs */
 418 #define FB_DPMS_ACTIVE_OFF      1
 419 #define FB_DPMS_SUSPEND         2
 420 #define FB_DPMS_STANDBY         4
 421
 422 #define FB_DISP_DDI             1
 423 #define FB_DISP_ANA_700_300     2
 424 #define FB_DISP_ANA_714_286     4
 425 #define FB_DISP_ANA_1000_400    8
 426 #define FB_DISP_ANA_700_000     16
 427
 428 #define FB_DISP_MONO            32
 429 #define FB_DISP_RGB             64
 430 #define FB_DISP_MULTI           128
 431 #define FB_DISP_UNKNOWN         256
 432
 433 #define FB_SIGNAL_NONE          0
 434 #define FB_SIGNAL_BLANK_BLANK   1
 435 #define FB_SIGNAL_SEPARATE      2
 436 #define FB_SIGNAL_COMPOSITE     4
 437 #define FB_SIGNAL_SYNC_ON_GREEN 8
 438 #define FB_SIGNAL_SERRATION_ON  16
 439
 440 #define FB_MISC_PRIM_COLOR      1
 441 #define FB_MISC_1ST_DETAIL      2       /* First Detailed Timing is preferred */
 442 struct fb_chroma {
 443         __u32 redx;     /* in fraction of 1024 */
 444         __u32 greenx;
 445         __u32 bluex;
 446         __u32 whitex;
 447         __u32 redy;
 448         __u32 greeny;
 449         __u32 bluey;
 450         __u32 whitey;
 451 };
 452
 453 struct fb_monspecs {
 454         struct fb_chroma chroma;
 455         struct fb_videomode *modedb;    /* mode database */
 456         __u8  manufacturer[4];          /* Manufacturer */
 457         __u8  monitor[14];              /* Monitor String */
 458         __u8  serial_no[14];            /* Serial Number */
 459         __u8  ascii[14];                /* ? */
 460         __u32 modedb_len;               /* mode database length */
 461         __u32 model;                    /* Monitor Model */
 462         __u32 serial;                   /* Serial Number - Integer */
 463         __u32 year;                     /* Year manufactured */
 464         __u32 week;                     /* Week Manufactured */
 465         __u32 hfmin;                    /* hfreq lower limit (Hz) */
 466         __u32 hfmax;                    /* hfreq upper limit (Hz) */
 467         __u32 dclkmin;                  /* pixelclock lower limit (Hz) */
 468         __u32 dclkmax;                  /* pixelclock upper limit (Hz) */
 469         __u16 input;                    /* display type - see FB_DISP_* */
 470         __u16 dpms;                     /* DPMS support - see FB_DPMS_ */
 471         __u16 signal;                   /* Signal Type - see FB_SIGNAL_* */
 472         __u16 vfmin;                    /* vfreq lower limit (Hz) */
 473         __u16 vfmax;                    /* vfreq upper limit (Hz) */
 474         __u16 gamma;                    /* Gamma - in fractions of 100 */
 475         __u16 gtf       : 1;            /* supports GTF */
 476         __u16 misc;                     /* Misc flags - see FB_MISC_* */
 477         __u8  version;                  /* EDID version... */
 478         __u8  revision;                 /* ...and revision */
 479         __u8  max_x;                    /* Maximum horizontal size (cm) */
 480         __u8  max_y;                    /* Maximum vertical size (cm) */
 481 };
 482
 483 struct fb_cmap_user {
 484         __u32 start;                    /* First entry  */
 485         __u32 len;                      /* Number of entries */
 486         __u16 __user *red;              /* Red values   */
 487         __u16 __user *green;
 488         __u16 __user *blue;
 489         __u16 __user *transp;           /* transparency, can be NULL */
 490 };
 491
 492 struct fb_image_user {
 493         __u32 dx;                       /* Where to place image */
 494         __u32 dy;
 495         __u32 width;                    /* Size of image */
 496         __u32 height;
 497         __u32 fg_color;                 /* Only used when a mono bitmap */
 498         __u32 bg_color;
 499         __u8  depth;                    /* Depth of the image */
 500         const char __user *data;        /* Pointer to image data */
 501         struct fb_cmap_user cmap;       /* color map info */
 502 };
 503
 504 struct fb_cursor_user {
 505         __u16 set;                      /* what to set */
 506         __u16 enable;                   /* cursor on/off */
 507         __u16 rop;                      /* bitop operation */
 508         const char __user *mask;        /* cursor mask bits */
 509         struct fbcurpos hot;            /* cursor hot spot */
 510         struct fb_image_user image;     /* Cursor image */
 511 };
 512
 513 /*
 514  * Register/unregister for framebuffer events
 515  */
 516
 517 /*      The resolution of the passed in fb_info about to change */
 518 #define FB_EVENT_MODE_CHANGE            0x01
 519 /*      The display on this fb_info is beeing suspended, no access to the
 520  *      framebuffer is allowed any more after that call returns
 521  */
 522 #define FB_EVENT_SUSPEND                0x02
 523 /*      The display on this fb_info was resumed, you can restore the display
 524  *      if you own it
 525  */
 526 #define FB_EVENT_RESUME                 0x03
 527 /*      An entry from the modelist was removed */
 528 #define FB_EVENT_MODE_DELETE            0x04
 529 /*      A driver registered itself */
 530 #define FB_EVENT_FB_REGISTERED          0x05
 531 /*      A driver unregistered itself */
 532 #define FB_EVENT_FB_UNREGISTERED        0x06
 533 /*      CONSOLE-SPECIFIC: get console to framebuffer mapping */
 534 #define FB_EVENT_GET_CONSOLE_MAP        0x07
 535 /*      CONSOLE-SPECIFIC: set console to framebuffer mapping */
 536 #define FB_EVENT_SET_CONSOLE_MAP        0x08
 537 /*      A hardware display blank change occurred */
 538 #define FB_EVENT_BLANK                  0x09
 539 /*      Private modelist is to be replaced */
 540 #define FB_EVENT_NEW_MODELIST           0x0A
 541 /*      The resolution of the passed in fb_info about to change and
 542         all vc's should be changed         */
 543 #define FB_EVENT_MODE_CHANGE_ALL        0x0B
 544 /*      A software display blank change occurred */
 545 #define FB_EVENT_CONBLANK               0x0C
 546 /*      Get drawing requirements        */
 547 #define FB_EVENT_GET_REQ                0x0D
 548 /*      Unbind from the console if possible */
 549 #define FB_EVENT_FB_UNBIND              0x0E
 550 /*      CONSOLE-SPECIFIC: remap all consoles to new fb - for vga switcheroo */
 551 #define FB_EVENT_REMAP_ALL_CONSOLE      0x0F
 552
 553 struct fb_event {
 554         struct fb_info *info;
 555         void *data;
 556 };
 557
 558 struct fb_blit_caps {
 559         u32 x;
 560         u32 y;
 561         u32 len;
 562         u32 flags;
 563 };
 564
 565 extern int fb_register_client(struct notifier_block *nb);
 566 extern int fb_unregister_client(struct notifier_block *nb);
 567 extern int fb_notifier_call_chain(unsigned long val, void *v);
 568 /*
 569  * Pixmap structure definition
 570  *
 571  * The purpose of this structure is to translate data
 572  * from the hardware independent format of fbdev to what
 573  * format the hardware needs.
 574  */
 575
 576 #define FB_PIXMAP_DEFAULT 1     /* used internally by fbcon */
 577 #define FB_PIXMAP_SYSTEM  2     /* memory is in system RAM  */
 578 #define FB_PIXMAP_IO      4     /* memory is iomapped       */
 579 #define FB_PIXMAP_SYNC    256   /* set if GPU can DMA       */
 580
 581 struct fb_pixmap {
 582         u8  *addr;              /* pointer to memory                    */
 583         u32 size;               /* size of buffer in bytes              */
 584         u32 offset;             /* current offset to buffer             */
 585         u32 buf_align;          /* byte alignment of each bitmap        */
 586         u32 scan_align;         /* alignment per scanline               */
 587         u32 access_align;       /* alignment per read/write (bits)      */
 588         u32 flags;              /* see FB_PIXMAP_*                      */
 589         u32 blit_x;             /* supported bit block dimensions (1-32)*/
 590         u32 blit_y;             /* Format: blit_x = 1 << (width - 1)    */
 591                                 /*         blit_y = 1 << (height - 1)   */
 592                                 /* if 0, will be set to 0xffffffff (all)*/
 593         /* access methods */
 594         void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size);
 595         void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size);
 596 };
 597
 598 #ifdef CONFIG_FB_DEFERRED_IO
 599 struct fb_deferred_io {
 600         /* delay between mkwrite and deferred handler */
 601         unsigned long delay;
 602         struct mutex lock; /* mutex that protects the page list */
 603         struct list_head pagelist; /* list of touched pages */
 604         /* callback */
 605         void (*deferred_io)(struct fb_info *info, struct list_head *pagelist);
 606 };
 607 #endif
 608
 609 /*
 610  * Frame buffer operations
 611  *
 612  * LOCKING NOTE: those functions must _ALL_ be called with the console
 613  * semaphore held, this is the only suitable locking mechanism we have
 614  * in 2.6. Some may be called at interrupt time at this point though.
 615  *
 616  * The exception to this is the debug related hooks.  Putting the fb
 617  * into a debug state (e.g. flipping to the kernel console) and restoring
 618  * it must be done in a lock-free manner, so low level drivers should
 619  * keep track of the initial console (if applicable) and may need to
 620  * perform direct, unlocked hardware writes in these hooks.
 621  */
 622
 623 struct fb_ops {
 624         /* open/release and usage marking */
 625         struct module *owner;
 626         int (*fb_open)(struct fb_info *info, int user);
 627         int (*fb_release)(struct fb_info *info, int user);
 628
 629         /* For framebuffers with strange non linear layouts or that do not
 630          * work with normal memory mapped access
 631          */
 632         ssize_t (*fb_read)(struct fb_info *info, char __user *buf,
 633                            size_t count, loff_t *ppos);
 634         ssize_t (*fb_write)(struct fb_info *info, const char __user *buf,
 635                             size_t count, loff_t *ppos);
 636
 637         /* checks var and eventually tweaks it to something supported,
 638          * DO NOT MODIFY PAR */
 639         int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
 640
 641         /* set the video mode according to info->var */
 642         int (*fb_set_par)(struct fb_info *info);
 643
 644         /* set color register */
 645         int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green,
 646                             unsigned blue, unsigned transp, struct fb_info *info);
 647
 648         /* set color registers in batch */
 649         int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info);
 650
 651         /* blank display */
 652         int (*fb_blank)(int blank, struct fb_info *info);
 653
 654         /* pan display */
 655         int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info);
 656
 657         /* Draws a rectangle */
 658         void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);
 659         /* Copy data from area to another */
 660         void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);
 661         /* Draws a image to the display */
 662         void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
 663
 664         /* Draws cursor */
 665         int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
 666
 667         /* Rotates the display */
 668         void (*fb_rotate)(struct fb_info *info, int angle);
 669
 670         /* wait for blit idle, optional */
 671         int (*fb_sync)(struct fb_info *info);
 672
 673         /* perform fb specific ioctl (optional) */
 674         int (*fb_ioctl)(struct fb_info *info, unsigned int cmd,
 675                         unsigned long arg);
 676
 677         /* Handle 32bit compat ioctl (optional) */
 678         int (*fb_compat_ioctl)(struct fb_info *info, unsigned cmd,
 679                         unsigned long arg);
 680
 681         /* perform fb specific mmap */
 682         int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma);
 683
 684         /* get capability given var */
 685         void (*fb_get_caps)(struct fb_info *info, struct fb_blit_caps *caps,
 686                             struct fb_var_screeninfo *var);
 687
 688         /* teardown any resources to do with this framebuffer */
 689         void (*fb_destroy)(struct fb_info *info);
 690
 691         /* called at KDB enter and leave time to prepare the console */
 692         int (*fb_debug_enter)(struct fb_info *info);
 693         int (*fb_debug_leave)(struct fb_info *info);
 694 };
 695
 696 #ifdef CONFIG_FB_TILEBLITTING
 697 #define FB_TILE_CURSOR_NONE        0
 698 #define FB_TILE_CURSOR_UNDERLINE   1
 699 #define FB_TILE_CURSOR_LOWER_THIRD 2
 700 #define FB_TILE_CURSOR_LOWER_HALF  3
 701 #define FB_TILE_CURSOR_TWO_THIRDS  4
 702 #define FB_TILE_CURSOR_BLOCK       5
 703
 704 struct fb_tilemap {
 705         __u32 width;                /* width of each tile in pixels */
 706         __u32 height;               /* height of each tile in scanlines */
 707         __u32 depth;                /* color depth of each tile */
 708         __u32 length;               /* number of tiles in the map */
 709         const __u8 *data;           /* actual tile map: a bitmap array, packed
 710                                        to the nearest byte */
 711 };
 712
 713 struct fb_tilerect {
 714         __u32 sx;                   /* origin in the x-axis */
 715         __u32 sy;                   /* origin in the y-axis */
 716         __u32 width;                /* number of tiles in the x-axis */
 717         __u32 height;               /* number of tiles in the y-axis */
 718         __u32 index;                /* what tile to use: index to tile map */
 719         __u32 fg;                   /* foreground color */
 720         __u32 bg;                   /* background color */
 721         __u32 rop;                  /* raster operation */
 722 };
 723
 724 struct fb_tilearea {
 725         __u32 sx;                   /* source origin in the x-axis */
 726         __u32 sy;                   /* source origin in the y-axis */
 727         __u32 dx;                   /* destination origin in the x-axis */
 728         __u32 dy;                   /* destination origin in the y-axis */
 729         __u32 width;                /* number of tiles in the x-axis */
 730         __u32 height;               /* number of tiles in the y-axis */
 731 };
 732
 733 struct fb_tileblit {
 734         __u32 sx;                   /* origin in the x-axis */
 735         __u32 sy;                   /* origin in the y-axis */
 736         __u32 width;                /* number of tiles in the x-axis */
 737         __u32 height;               /* number of tiles in the y-axis */
 738         __u32 fg;                   /* foreground color */
 739         __u32 bg;                   /* background color */
 740         __u32 length;               /* number of tiles to draw */
 741         __u32 *indices;             /* array of indices to tile map */
 742 };
 743
 744 struct fb_tilecursor {
 745         __u32 sx;                   /* cursor position in the x-axis */
 746         __u32 sy;                   /* cursor position in the y-axis */
 747         __u32 mode;                 /* 0 = erase, 1 = draw */
 748         __u32 shape;                /* see FB_TILE_CURSOR_* */
 749         __u32 fg;                   /* foreground color */
 750         __u32 bg;                   /* background color */
 751 };
 752
 753 struct fb_tile_ops {
 754         /* set tile characteristics */
 755         void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map);
 756
 757         /* all dimensions from hereon are in terms of tiles */
 758
 759         /* move a rectangular region of tiles from one area to another*/
 760         void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area);
 761         /* fill a rectangular region with a tile */
 762         void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect);
 763         /* copy an array of tiles */
 764         void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit);
 765         /* cursor */
 766         void (*fb_tilecursor)(struct fb_info *info,
 767                               struct fb_tilecursor *cursor);
 768         /* get maximum length of the tile map */
 769         int (*fb_get_tilemax)(struct fb_info *info);
 770 };
 771 #endif /* CONFIG_FB_TILEBLITTING */
 772
 773 /* FBINFO_* = fb_info.flags bit flags */
 774 #define FBINFO_MODULE           0x0001  /* Low-level driver is a module */
 775 #define FBINFO_HWACCEL_DISABLED 0x0002
 776         /* When FBINFO_HWACCEL_DISABLED is set:
 777          *  Hardware acceleration is turned off.  Software implementations
 778          *  of required functions (copyarea(), fillrect(), and imageblit())
 779          *  takes over; acceleration engine should be in a quiescent state */
 780
 781 /* hints */
 782 #define FBINFO_VIRTFB           0x0004 /* FB is System RAM, not device. */
 783 #define FBINFO_PARTIAL_PAN_OK   0x0040 /* otw use pan only for double-buffering */
 784 #define FBINFO_READS_FAST       0x0080 /* soft-copy faster than rendering */
 785
 786 /* hardware supported ops */
 787 /*  semantics: when a bit is set, it indicates that the operation is
 788  *   accelerated by hardware.
 789  *  required functions will still work even if the bit is not set.
 790  *  optional functions may not even exist if the flag bit is not set.
 791  */
 792 #define FBINFO_HWACCEL_NONE             0x0000
 793 #define FBINFO_HWACCEL_COPYAREA         0x0100 /* required */
 794 #define FBINFO_HWACCEL_FILLRECT         0x0200 /* required */
 795 #define FBINFO_HWACCEL_IMAGEBLIT        0x0400 /* required */
 796 #define FBINFO_HWACCEL_ROTATE           0x0800 /* optional */
 797 #define FBINFO_HWACCEL_XPAN             0x1000 /* optional */
 798 #define FBINFO_HWACCEL_YPAN             0x2000 /* optional */
 799 #define FBINFO_HWACCEL_YWRAP            0x4000 /* optional */
 800
 801 #define FBINFO_MISC_USEREVENT          0x10000 /* event request
 802                                                   from userspace */
 803 #define FBINFO_MISC_TILEBLITTING       0x20000 /* use tile blitting */
 804
 805 /* A driver may set this flag to indicate that it does want a set_par to be
 806  * called every time when fbcon_switch is executed. The advantage is that with
 807  * this flag set you can really be sure that set_par is always called before
 808  * any of the functions dependent on the correct hardware state or altering
 809  * that state, even if you are using some broken X releases. The disadvantage
 810  * is that it introduces unwanted delays to every console switch if set_par
 811  * is slow. It is a good idea to try this flag in the drivers initialization
 812  * code whenever there is a bug report related to switching between X and the
 813  * framebuffer console.
 814  */
 815 #define FBINFO_MISC_ALWAYS_SETPAR   0x40000
 816
 817 /* where the fb is a firmware driver, and can be replaced with a proper one */
 818 #define FBINFO_MISC_FIRMWARE        0x80000
 819 /*
 820  * Host and GPU endianness differ.
 821  */
 822 #define FBINFO_FOREIGN_ENDIAN   0x100000
 823 /*
 824  * Big endian math. This is the same flags as above, but with different
 825  * meaning, it is set by the fb subsystem depending FOREIGN_ENDIAN flag
 826  * and host endianness. Drivers should not use this flag.
 827  */
 828 #define FBINFO_BE_MATH  0x100000
 829
 830 /* report to the VT layer that this fb driver can accept forced console
 831    output like oopses */
 832 #define FBINFO_CAN_FORCE_OUTPUT     0x200000
 833
 834 struct fb_info {
 835         atomic_t count;
 836         int node;
 837         int flags;
 838         struct mutex lock;              /* Lock for open/release/ioctl funcs */
 839         struct mutex mm_lock;           /* Lock for fb_mmap and smem_* fields */
 840         struct fb_var_screeninfo var;   /* Current var */
 841         struct fb_fix_screeninfo fix;   /* Current fix */
 842         struct fb_monspecs monspecs;    /* Current Monitor specs */
 843         struct work_struct queue;       /* Framebuffer event queue */
 844         struct fb_pixmap pixmap;        /* Image hardware mapper */
 845         struct fb_pixmap sprite;        /* Cursor hardware mapper */
 846         struct fb_cmap cmap;            /* Current cmap */
 847         struct list_head modelist;      /* mode list */
 848         struct fb_videomode *mode;      /* current mode */
 849
 850 #ifdef CONFIG_FB_BACKLIGHT
 851         /* assigned backlight device */
 852         /* set before framebuffer registration,
 853            remove after unregister */
 854         struct backlight_device *bl_dev;
 855
 856         /* Backlight level curve */
 857         struct mutex bl_curve_mutex;
 858         u8 bl_curve[FB_BACKLIGHT_LEVELS];
 859 #endif
 860 #ifdef CONFIG_FB_DEFERRED_IO
 861         struct delayed_work deferred_work;
 862         struct fb_deferred_io *fbdefio;
 863 #endif
 864
 865         struct fb_ops *fbops;
 866         struct device *device;          /* This is the parent */
 867         struct device *dev;             /* This is this fb device */
 868         int class_flag;                    /* private sysfs flags */
 869 #ifdef CONFIG_FB_TILEBLITTING
 870         struct fb_tile_ops *tileops;    /* Tile Blitting */
 871 #endif
 872         char __iomem *screen_base;      /* Virtual address */
 873         unsigned long screen_size;      /* Amount of ioremapped VRAM or 0 */
 874         void *pseudo_palette;           /* Fake palette of 16 colors */
 875 #define FBINFO_STATE_RUNNING    0
 876 #define FBINFO_STATE_SUSPENDED  1
 877         u32 state;                      /* Hardware state i.e suspend */
 878         void *fbcon_par;                /* fbcon use-only private area */
 879         /* From here on everything is device dependent */
 880         void *par;
 881         /* we need the PCI or similar aperture base/size not
 882            smem_start/size as smem_start may just be an object
 883            allocated inside the aperture so may not actually overlap */
 884         struct apertures_struct {
 885                 unsigned int count;
 886                 struct aperture {
 887                         resource_size_t base;
 888                         resource_size_t size;
 889                 } ranges[0];
 890         } *apertures;
 891 };
 892
 893 static inline struct apertures_struct *alloc_apertures(unsigned int max_num) {
 894         struct apertures_struct *a = kzalloc(sizeof(struct apertures_struct)
 895                         + max_num * sizeof(struct aperture), GFP_KERNEL);
 896         if (!a)
 897                 return NULL;
 898         a->count = max_num;
 899         return a;
 900 }
 901
 902 #ifdef MODULE
 903 #define FBINFO_DEFAULT  FBINFO_MODULE
 904 #else
 905 #define FBINFO_DEFAULT  0
 906 #endif
 907
 908 // This will go away
 909 #define FBINFO_FLAG_MODULE      FBINFO_MODULE
 910 #define FBINFO_FLAG_DEFAULT     FBINFO_DEFAULT
 911
 912 /* This will go away
 913  * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags
 914  * when it wants to turn the acceleration engine on.  This is
 915  * really a separate operation, and should be modified via sysfs.
 916  *  But for now, we leave it broken with the following define
 917  */
 918 #define STUPID_ACCELF_TEXT_SHIT
 919
 920 // This will go away
 921 #if defined(__sparc__)
 922
 923 /* We map all of our framebuffers such that big-endian accesses
 924  * are what we want, so the following is sufficient.
 925  */
 926
 927 // This will go away
 928 #define fb_readb sbus_readb
 929 #define fb_readw sbus_readw
 930 #define fb_readl sbus_readl
 931 #define fb_readq sbus_readq
 932 #define fb_writeb sbus_writeb
 933 #define fb_writew sbus_writew
 934 #define fb_writel sbus_writel
 935 #define fb_writeq sbus_writeq
 936 #define fb_memset sbus_memset_io
 937 #define fb_memcpy_fromfb sbus_memcpy_fromio
 938 #define fb_memcpy_tofb sbus_memcpy_toio
 939
 940 #elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || defined(__sh__) || defined(__powerpc__) || defined(__avr32__) || defined(__bfin__)
 941
 942 #define fb_readb __raw_readb
 943 #define fb_readw __raw_readw
 944 #define fb_readl __raw_readl
 945 #define fb_readq __raw_readq
 946 #define fb_writeb __raw_writeb
 947 #define fb_writew __raw_writew
 948 #define fb_writel __raw_writel
 949 #define fb_writeq __raw_writeq
 950 #define fb_memset memset_io
 951 #define fb_memcpy_fromfb memcpy_fromio
 952 #define fb_memcpy_tofb memcpy_toio
 953
 954 #else
 955
 956 #define fb_readb(addr) (*(volatile u8 *) (addr))
 957 #define fb_readw(addr) (*(volatile u16 *) (addr))
 958 #define fb_readl(addr) (*(volatile u32 *) (addr))
 959 #define fb_readq(addr) (*(volatile u64 *) (addr))
 960 #define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
 961 #define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
 962 #define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
 963 #define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b))
 964 #define fb_memset memset
 965 #define fb_memcpy_fromfb memcpy
 966 #define fb_memcpy_tofb memcpy
 967
 968 #endif
 969
 970 #define FB_LEFT_POS(p, bpp)          (fb_be_math(p) ? (32 - (bpp)) : 0)
 971 #define FB_SHIFT_HIGH(p, val, bits)  (fb_be_math(p) ? (val) >> (bits) : \
 972                                                       (val) << (bits))
 973 #define FB_SHIFT_LOW(p, val, bits)   (fb_be_math(p) ? (val) << (bits) : \
 974                                                       (val) >> (bits))
 975
 976     /*
 977      *  `Generic' versions of the frame buffer device operations
 978      */
 979
 980 extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var);
 981 extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var);
 982 extern int fb_blank(struct fb_info *info, int blank);
 983 extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
 984 extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
 985 extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image);
 986 /*
 987  * Drawing operations where framebuffer is in system RAM
 988  */
 989 extern void sys_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
 990 extern void sys_copyarea(struct fb_info *info, const struct fb_copyarea *area);
 991 extern void sys_imageblit(struct fb_info *info, const struct fb_image *image);
 992 extern ssize_t fb_sys_read(struct fb_info *info, char __user *buf,
 993                            size_t count, loff_t *ppos);
 994 extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
 995                             size_t count, loff_t *ppos);
 996
 997 /* drivers/video/fbmem.c */
 998 extern int register_framebuffer(struct fb_info *fb_info);
 999 extern int unregister_framebuffer(struct fb_info *fb_info);
1000 extern void remove_conflicting_framebuffers(struct apertures_struct *a,
1001                                 const char *name, bool primary);
1002 extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
1003 extern int fb_show_logo(struct fb_info *fb_info, int rotate);
1004 extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);
1005 extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx,
1006                                 u32 height, u32 shift_high, u32 shift_low, u32 mod);
1007 extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height);
1008 extern void fb_set_suspend(struct fb_info *info, int state);
1009 extern int fb_get_color_depth(struct fb_var_screeninfo *var,
1010                               struct fb_fix_screeninfo *fix);
1011 extern int fb_get_options(char *name, char **option);
1012 extern int fb_new_modelist(struct fb_info *info);
1013
1014 extern struct fb_info *registered_fb[FB_MAX];
1015 extern int num_registered_fb;
1016 extern struct class *fb_class;
1017
1018 extern int lock_fb_info(struct fb_info *info);
1019
1020 static inline void unlock_fb_info(struct fb_info *info)
1021 {
1022         mutex_unlock(&info->lock);
1023 }
1024
1025 static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch,
1026                                            u8 *src, u32 s_pitch, u32 height)
1027 {
1028         int i, j;
1029
1030         d_pitch -= s_pitch;
1031
1032         for (i = height; i--; ) {
1033                 /* s_pitch is a few bytes at the most, memcpy is suboptimal */
1034                 for (j = 0; j < s_pitch; j++)
1035                         *dst++ = *src++;
1036                 dst += d_pitch;
1037         }
1038 }
1039
1040 /* drivers/video/fb_defio.c */
1041 extern void fb_deferred_io_init(struct fb_info *info);
1042 extern void fb_deferred_io_open(struct fb_info *info,
1043                                 struct inode *inode,
1044                                 struct file *file);
1045 extern void fb_deferred_io_cleanup(struct fb_info *info);
1046 extern int fb_deferred_io_fsync(struct file *file, int datasync);
1047
1048 static inline bool fb_be_math(struct fb_info *info)
1049 {
1050 #ifdef CONFIG_FB_FOREIGN_ENDIAN
1051 #if defined(CONFIG_FB_BOTH_ENDIAN)
1052         return info->flags & FBINFO_BE_MATH;
1053 #elif defined(CONFIG_FB_BIG_ENDIAN)
1054         return true;
1055 #elif defined(CONFIG_FB_LITTLE_ENDIAN)
1056         return false;
1057 #endif /* CONFIG_FB_BOTH_ENDIAN */
1058 #else
1059 #ifdef __BIG_ENDIAN
1060         return true;
1061 #else
1062         return false;
1063 #endif /* __BIG_ENDIAN */
1064 #endif /* CONFIG_FB_FOREIGN_ENDIAN */
1065 }
1066
1067 /* drivers/video/fbsysfs.c */
1068 extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);
1069 extern void framebuffer_release(struct fb_info *info);
1070 extern int fb_init_device(struct fb_info *fb_info);
1071 extern void fb_cleanup_device(struct fb_info *head);
1072 extern void fb_bl_default_curve(struct fb_info *fb_info, u8 off, u8 min, u8 max);
1073
1074 /* drivers/video/fbmon.c */
1075 #define FB_MAXTIMINGS           0
1076 #define FB_VSYNCTIMINGS         1
1077 #define FB_HSYNCTIMINGS         2
1078 #define FB_DCLKTIMINGS          3
1079 #define FB_IGNOREMON            0x100
1080
1081 #define FB_MODE_IS_UNKNOWN      0
1082 #define FB_MODE_IS_DETAILED     1
1083 #define FB_MODE_IS_STANDARD     2
1084 #define FB_MODE_IS_VESA         4
1085 #define FB_MODE_IS_CALCULATED   8
1086 #define FB_MODE_IS_FIRST        16
1087 #define FB_MODE_IS_FROM_VAR     32
1088
1089 extern int fbmon_dpms(const struct fb_info *fb_info);
1090 extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var,
1091                        struct fb_info *info);
1092 extern int fb_validate_mode(const struct fb_var_screeninfo *var,
1093                             struct fb_info *info);
1094 extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);
1095 extern const unsigned char *fb_firmware_edid(struct device *device);
1096 extern void fb_edid_to_monspecs(unsigned char *edid,
1097                                 struct fb_monspecs *specs);
1098 extern void fb_edid_add_monspecs(unsigned char *edid,
1099                                  struct fb_monspecs *specs);
1100 extern void fb_destroy_modedb(struct fb_videomode *modedb);
1101 extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb);
1102 extern unsigned char *fb_ddc_read(struct i2c_adapter *adapter);
1103
1104 /* drivers/video/modedb.c */
1105 #define VESA_MODEDB_SIZE 34
1106 extern void fb_var_to_videomode(struct fb_videomode *mode,
1107                                 const struct fb_var_screeninfo *var);
1108 extern void fb_videomode_to_var(struct fb_var_screeninfo *var,
1109                                 const struct fb_videomode *mode);
1110 extern int fb_mode_is_equal(const struct fb_videomode *mode1,
1111                             const struct fb_videomode *mode2);
1112 extern int fb_add_videomode(const struct fb_videomode *mode,
1113                             struct list_head *head);
1114 extern void fb_delete_videomode(const struct fb_videomode *mode,
1115                                 struct list_head *head);
1116 extern const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var,
1117                                                 struct list_head *head);
1118 extern const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var,
1119                                                     struct list_head *head);
1120 extern const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode,
1121                                                        struct list_head *head);
1122 extern void fb_destroy_modelist(struct list_head *head);
1123 extern void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num,
1124                                      struct list_head *head);
1125 extern const struct fb_videomode *fb_find_best_display(const struct fb_monspecs *specs,
1126                                                        struct list_head *head);
1127
1128 /* drivers/video/fbcmap.c */
1129 extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);
1130 extern int fb_alloc_cmap_gfp(struct fb_cmap *cmap, int len, int transp, gfp_t flags);
1131 extern void fb_dealloc_cmap(struct fb_cmap *cmap);
1132 extern int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to);
1133 extern int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to);
1134 extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info);
1135 extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info);
1136 extern const struct fb_cmap *fb_default_cmap(int len);
1137 extern void fb_invert_cmaps(void);
1138
1139 struct fb_videomode {
1140         const char *name;       /* optional */
1141         u32 refresh;            /* optional */
1142         u32 xres;
1143         u32 yres;
1144         u32 pixclock;
1145         u32 left_margin;
1146         u32 right_margin;
1147         u32 upper_margin;
1148         u32 lower_margin;
1149         u32 hsync_len;
1150         u32 vsync_len;
1151         u32 sync;
1152         u32 vmode;
1153         u32 flag;
1154 };
1155
1156 extern const char *fb_mode_option;
1157 extern const struct fb_videomode vesa_modes[];
1158 extern const struct fb_videomode cea_modes[64];
1159
1160 struct fb_modelist {
1161         struct list_head list;
1162         struct fb_videomode mode;
1163 };
1164
1165 extern int fb_find_mode(struct fb_var_screeninfo *var,
1166                         struct fb_info *info, const char *mode_option,
1167                         const struct fb_videomode *db,
1168                         unsigned int dbsize,
1169                         const struct fb_videomode *default_mode,
1170                         unsigned int default_bpp);
1171
1172 #endif /* __KERNEL__ */
1173
1174 #endif /* _LINUX_FB_H */