include/linux/fb.h

   1 #ifndef _LINUX_FB_H
   2 #define _LINUX_FB_H
   3
   4 #include <asm/types.h>
   5
   6 /* Definitions of frame buffers                                         */
   7
   8 #define FB_MAJOR                29
   9 #define FB_MAX                  32      /* sufficient for now */
  10
  11 /* ioctls
  12    0x46 is 'F'                                                          */
  13 #define FBIOGET_VSCREENINFO     0x4600
  14 #define FBIOPUT_VSCREENINFO     0x4601
  15 #define FBIOGET_FSCREENINFO     0x4602
  16 #define FBIOGETCMAP             0x4604
  17 #define FBIOPUTCMAP             0x4605
  18 #define FBIOPAN_DISPLAY         0x4606
  19 #define FBIO_CURSOR            _IOWR('F', 0x08, struct fb_cursor)
  20 /* 0x4607-0x460B are defined below */
  21 /* #define FBIOGET_MONITORSPEC  0x460C */
  22 /* #define FBIOPUT_MONITORSPEC  0x460D */
  23 /* #define FBIOSWITCH_MONIBIT   0x460E */
  24 #define FBIOGET_CON2FBMAP       0x460F
  25 #define FBIOPUT_CON2FBMAP       0x4610
  26 #define FBIOBLANK               0x4611          /* arg: 0 or vesa level + 1 */
  27 #define FBIOGET_VBLANK          _IOR('F', 0x12, struct fb_vblank)
  28 #define FBIO_ALLOC              0x4613
  29 #define FBIO_FREE               0x4614
  30 #define FBIOGET_GLYPH           0x4615
  31 #define FBIOGET_HWCINFO         0x4616
  32 #define FBIOPUT_MODEINFO        0x4617
  33 #define FBIOGET_DISPINFO        0x4618
  34
  35
  36 #define FB_TYPE_PACKED_PIXELS           0       /* Packed Pixels        */
  37 #define FB_TYPE_PLANES                  1       /* Non interleaved planes */
  38 #define FB_TYPE_INTERLEAVED_PLANES      2       /* Interleaved planes   */
  39 #define FB_TYPE_TEXT                    3       /* Text/attributes      */
  40 #define FB_TYPE_VGA_PLANES              4       /* EGA/VGA planes       */
  41
  42 #define FB_AUX_TEXT_MDA         0       /* Monochrome text */
  43 #define FB_AUX_TEXT_CGA         1       /* CGA/EGA/VGA Color text */
  44 #define FB_AUX_TEXT_S3_MMIO     2       /* S3 MMIO fasttext */
  45 #define FB_AUX_TEXT_MGA_STEP16  3       /* MGA Millenium I: text, attr, 14 reserved bytes */
  46 #define FB_AUX_TEXT_MGA_STEP8   4       /* other MGAs:      text, attr,  6 reserved bytes */
  47
  48 #define FB_AUX_VGA_PLANES_VGA4          0       /* 16 color planes (EGA/VGA) */
  49 #define FB_AUX_VGA_PLANES_CFB4          1       /* CFB4 in planes (VGA) */
  50 #define FB_AUX_VGA_PLANES_CFB8          2       /* CFB8 in planes (VGA) */
  51
  52 #define FB_VISUAL_MONO01                0       /* Monochr. 1=Black 0=White */
  53 #define FB_VISUAL_MONO10                1       /* Monochr. 1=White 0=Black */
  54 #define FB_VISUAL_TRUECOLOR             2       /* True color   */
  55 #define FB_VISUAL_PSEUDOCOLOR           3       /* Pseudo color (like atari) */
  56 #define FB_VISUAL_DIRECTCOLOR           4       /* Direct color */
  57 #define FB_VISUAL_STATIC_PSEUDOCOLOR    5       /* Pseudo color readonly */
  58
  59 #define FB_ACCEL_NONE           0       /* no hardware accelerator      */
  60 #define FB_ACCEL_ATARIBLITT     1       /* Atari Blitter                */
  61 #define FB_ACCEL_AMIGABLITT     2       /* Amiga Blitter                */
  62 #define FB_ACCEL_S3_TRIO64      3       /* Cybervision64 (S3 Trio64)    */
  63 #define FB_ACCEL_NCR_77C32BLT   4       /* RetinaZ3 (NCR 77C32BLT)      */
  64 #define FB_ACCEL_S3_VIRGE       5       /* Cybervision64/3D (S3 ViRGE)  */
  65 #define FB_ACCEL_ATI_MACH64GX   6       /* ATI Mach 64GX family         */
  66 #define FB_ACCEL_DEC_TGA        7       /* DEC 21030 TGA                */
  67 #define FB_ACCEL_ATI_MACH64CT   8       /* ATI Mach 64CT family         */
  68 #define FB_ACCEL_ATI_MACH64VT   9       /* ATI Mach 64CT family VT class */
  69 #define FB_ACCEL_ATI_MACH64GT   10      /* ATI Mach 64CT family GT class */
  70 #define FB_ACCEL_SUN_CREATOR    11      /* Sun Creator/Creator3D        */
  71 #define FB_ACCEL_SUN_CGSIX      12      /* Sun cg6                      */
  72 #define FB_ACCEL_SUN_LEO        13      /* Sun leo/zx                   */
  73 #define FB_ACCEL_IMS_TWINTURBO  14      /* IMS Twin Turbo               */
  74 #define FB_ACCEL_3DLABS_PERMEDIA2 15    /* 3Dlabs Permedia 2            */
  75 #define FB_ACCEL_MATROX_MGA2064W 16     /* Matrox MGA2064W (Millenium)  */
  76 #define FB_ACCEL_MATROX_MGA1064SG 17    /* Matrox MGA1064SG (Mystique)  */
  77 #define FB_ACCEL_MATROX_MGA2164W 18     /* Matrox MGA2164W (Millenium II) */
  78 #define FB_ACCEL_MATROX_MGA2164W_AGP 19 /* Matrox MGA2164W (Millenium II) */
  79 #define FB_ACCEL_MATROX_MGAG100 20      /* Matrox G100 (Productiva G100) */
  80 #define FB_ACCEL_MATROX_MGAG200 21      /* Matrox G200 (Myst, Mill, ...) */
  81 #define FB_ACCEL_SUN_CG14       22      /* Sun cgfourteen                */
  82 #define FB_ACCEL_SUN_BWTWO      23      /* Sun bwtwo                    */
  83 #define FB_ACCEL_SUN_CGTHREE    24      /* Sun cgthree                  */
  84 #define FB_ACCEL_SUN_TCX        25      /* Sun tcx                      */
  85 #define FB_ACCEL_MATROX_MGAG400 26      /* Matrox G400                  */
  86 #define FB_ACCEL_NV3            27      /* nVidia RIVA 128              */
  87 #define FB_ACCEL_NV4            28      /* nVidia RIVA TNT              */
  88 #define FB_ACCEL_NV5            29      /* nVidia RIVA TNT2             */
  89 #define FB_ACCEL_CT_6555x       30      /* C&T 6555x                    */
  90 #define FB_ACCEL_3DFX_BANSHEE   31      /* 3Dfx Banshee                 */
  91 #define FB_ACCEL_ATI_RAGE128    32      /* ATI Rage128 family           */
  92 #define FB_ACCEL_IGS_CYBER2000  33      /* CyberPro 2000                */
  93 #define FB_ACCEL_IGS_CYBER2010  34      /* CyberPro 2010                */
  94 #define FB_ACCEL_IGS_CYBER5000  35      /* CyberPro 5000                */
  95 #define FB_ACCEL_SIS_GLAMOUR    36      /* SiS 300/630/540              */
  96 #define FB_ACCEL_3DLABS_PERMEDIA3 37    /* 3Dlabs Permedia 3            */
  97 #define FB_ACCEL_ATI_RADEON     38      /* ATI Radeon family            */
  98 #define FB_ACCEL_I810           39      /* Intel 810/815                */
  99 #define FB_ACCEL_SIS_GLAMOUR_2  40      /* SiS 315, 650, 740            */
 100 #define FB_ACCEL_SIS_XABRE      41      /* SiS 330 ("Xabre")            */
 101
 102 #define FB_ACCEL_NEOMAGIC_NM2070 90     /* NeoMagic NM2070              */
 103 #define FB_ACCEL_NEOMAGIC_NM2090 91     /* NeoMagic NM2090              */
 104 #define FB_ACCEL_NEOMAGIC_NM2093 92     /* NeoMagic NM2093              */
 105 #define FB_ACCEL_NEOMAGIC_NM2097 93     /* NeoMagic NM2097              */
 106 #define FB_ACCEL_NEOMAGIC_NM2160 94     /* NeoMagic NM2160              */
 107 #define FB_ACCEL_NEOMAGIC_NM2200 95     /* NeoMagic NM2200              */
 108 #define FB_ACCEL_NEOMAGIC_NM2230 96     /* NeoMagic NM2230              */
 109 #define FB_ACCEL_NEOMAGIC_NM2360 97     /* NeoMagic NM2360              */
 110 #define FB_ACCEL_NEOMAGIC_NM2380 98     /* NeoMagic NM2380              */
 111
 112
 113 struct fb_fix_screeninfo {
 114         char id[16];                    /* identification string eg "TT Builtin" */
 115         unsigned long smem_start;       /* Start of frame buffer mem */
 116                                         /* (physical address) */
 117         __u32 smem_len;                 /* Length of frame buffer mem */
 118         __u32 type;                     /* see FB_TYPE_*                */
 119         __u32 type_aux;                 /* Interleave for interleaved Planes */
 120         __u32 visual;                   /* see FB_VISUAL_*              */
 121         __u16 xpanstep;                 /* zero if no hardware panning  */
 122         __u16 ypanstep;                 /* zero if no hardware panning  */
 123         __u16 ywrapstep;                /* zero if no hardware ywrap    */
 124         __u32 line_length;              /* length of a line in bytes    */
 125         unsigned long mmio_start;       /* Start of Memory Mapped I/O   */
 126                                         /* (physical address) */
 127         __u32 mmio_len;                 /* Length of Memory Mapped I/O  */
 128         __u32 accel;                    /* Type of acceleration available */
 129         __u16 reserved[3];              /* Reserved for future compatibility */
 130 };
 131
 132 /* Interpretation of offset for color fields: All offsets are from the right,
 133  * inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
 134  * can use the offset as right argument to <<). A pixel afterwards is a bit
 135  * stream and is written to video memory as that unmodified. This implies
 136  * big-endian byte order if bits_per_pixel is greater than 8.
 137  */
 138 struct fb_bitfield {
 139         __u32 offset;                   /* beginning of bitfield        */
 140         __u32 length;                   /* length of bitfield           */
 141         __u32 msb_right;                /* != 0 : Most significant bit is */
 142                                         /* right */
 143 };
 144
 145 #define FB_NONSTD_HAM           1       /* Hold-And-Modify (HAM)        */
 146
 147 #define FB_ACTIVATE_NOW         0       /* set values immediately (or vbl)*/
 148 #define FB_ACTIVATE_NXTOPEN     1       /* activate on next open        */
 149 #define FB_ACTIVATE_TEST        2       /* don't set, round up impossible */
 150 #define FB_ACTIVATE_MASK       15
 151                                         /* values                       */
 152 #define FB_ACTIVATE_VBL        16       /* activate values on next vbl  */
 153 #define FB_CHANGE_CMAP_VBL     32       /* change colormap on vbl       */
 154 #define FB_ACTIVATE_ALL        64       /* change all VCs on this fb    */
 155 #define FB_ACTIVATE_FORCE     128       /* force apply even when no change*/
 156
 157 #define FB_ACCELF_TEXT          1       /* text mode acceleration */
 158
 159 #define FB_SYNC_HOR_HIGH_ACT    1       /* horizontal sync high active  */
 160 #define FB_SYNC_VERT_HIGH_ACT   2       /* vertical sync high active    */
 161 #define FB_SYNC_EXT             4       /* external sync                */
 162 #define FB_SYNC_COMP_HIGH_ACT   8       /* composite sync high active   */
 163 #define FB_SYNC_BROADCAST       16      /* broadcast video timings      */
 164                                         /* vtotal = 144d/288n/576i => PAL  */
 165                                         /* vtotal = 121d/242n/484i => NTSC */
 166 #define FB_SYNC_ON_GREEN        32      /* sync on green */
 167
 168 #define FB_VMODE_NONINTERLACED  0       /* non interlaced */
 169 #define FB_VMODE_INTERLACED     1       /* interlaced   */
 170 #define FB_VMODE_DOUBLE         2       /* double scan */
 171 #define FB_VMODE_MASK           255
 172
 173 #define FB_VMODE_YWRAP          256     /* ywrap instead of panning     */
 174 #define FB_VMODE_SMOOTH_XPAN    512     /* smooth xpan possible (internally used) */
 175 #define FB_VMODE_CONUPDATE      512     /* don't update x/yoffset       */
 176
 177 #define PICOS2KHZ(a) (1000000000UL/(a))
 178 #define KHZ2PICOS(a) (1000000000UL/(a))
 179
 180 struct fb_var_screeninfo {
 181         __u32 xres;                     /* visible resolution           */
 182         __u32 yres;
 183         __u32 xres_virtual;             /* virtual resolution           */
 184         __u32 yres_virtual;
 185         __u32 xoffset;                  /* offset from virtual to visible */
 186         __u32 yoffset;                  /* resolution                   */
 187
 188         __u32 bits_per_pixel;           /* guess what                   */
 189         __u32 grayscale;                /* != 0 Graylevels instead of colors */
 190
 191         struct fb_bitfield red;         /* bitfield in fb mem if true color, */
 192         struct fb_bitfield green;       /* else only length is significant */
 193         struct fb_bitfield blue;
 194         struct fb_bitfield transp;      /* transparency                 */
 195
 196         __u32 nonstd;                   /* != 0 Non standard pixel format */
 197
 198         __u32 activate;                 /* see FB_ACTIVATE_*            */
 199
 200         __u32 height;                   /* height of picture in mm    */
 201         __u32 width;                    /* width of picture in mm     */
 202
 203         __u32 accel_flags;              /* acceleration flags (hints)   */
 204
 205         /* Timing: All values in pixclocks, except pixclock (of course) */
 206         __u32 pixclock;                 /* pixel clock in ps (pico seconds) */
 207         __u32 left_margin;              /* time from sync to picture    */
 208         __u32 right_margin;             /* time from picture to sync    */
 209         __u32 upper_margin;             /* time from sync to picture    */
 210         __u32 lower_margin;
 211         __u32 hsync_len;                /* length of horizontal sync    */
 212         __u32 vsync_len;                /* length of vertical sync      */
 213         __u32 sync;                     /* see FB_SYNC_*                */
 214         __u32 vmode;                    /* see FB_VMODE_*               */
 215         __u32 rotate;                   /* angle we rotate counter clockwise */
 216         __u32 reserved[5];              /* Reserved for future compatibility */
 217 };
 218
 219 struct fb_cmap {
 220         __u32 start;                    /* First entry  */
 221         __u32 len;                      /* Number of entries */
 222         __u16 *red;                     /* Red values   */
 223         __u16 *green;
 224         __u16 *blue;
 225         __u16 *transp;                  /* transparency, can be NULL */
 226 };
 227
 228 struct fb_con2fbmap {
 229         __u32 console;
 230         __u32 framebuffer;
 231 };
 232
 233 /* VESA Blanking Levels */
 234 #define VESA_NO_BLANKING        0
 235 #define VESA_VSYNC_SUSPEND      1
 236 #define VESA_HSYNC_SUSPEND      2
 237 #define VESA_POWERDOWN          3
 238
 239 /* Definitions below are used in the parsed monitor specs */
 240 #define FB_DPMS_ACTIVE_OFF      1
 241 #define FB_DPMS_SUSPEND         2
 242 #define FB_DPMS_STANDBY         4
 243
 244 #define FB_DISP_DDI             1
 245 #define FB_DISP_ANA_700_300     2
 246 #define FB_DISP_ANA_714_286     4
 247 #define FB_DISP_ANA_1000_400    8
 248 #define FB_DISP_ANA_700_000     16
 249
 250 #define FB_DISP_MONO            32
 251 #define FB_DISP_RGB             64
 252 #define FB_DISP_MULTI           128
 253 #define FB_DISP_UNKNOWN         256
 254
 255 #define FB_SIGNAL_NONE          0
 256 #define FB_SIGNAL_BLANK_BLANK   1
 257 #define FB_SIGNAL_SEPARATE      2
 258 #define FB_SIGNAL_COMPOSITE     4
 259 #define FB_SIGNAL_SYNC_ON_GREEN 8
 260 #define FB_SIGNAL_SERRATION_ON  16
 261
 262 #define FB_MISC_PRIM_COLOR      1
 263 #define FB_MISC_1ST_DETAIL      2       /* First Detailed Timing is preferred */
 264
 265 struct fb_chroma {
 266         __u32 redx;     /* in fraction of 1024 */
 267         __u32 greenx;
 268         __u32 bluex;
 269         __u32 whitex;
 270         __u32 redy;
 271         __u32 greeny;
 272         __u32 bluey;
 273         __u32 whitey;
 274 };
 275
 276 struct fb_monspecs {
 277         struct fb_chroma chroma;
 278         struct fb_videomode *modedb;    /* mode database */
 279         __u8  manufacturer[4];          /* Manufacturer */
 280         __u8  monitor[14];              /* Monitor String */
 281         __u8  serial_no[14];            /* Serial Number */
 282         __u8  ascii[14];                /* ? */
 283         __u32 modedb_len;               /* mode database length */
 284         __u32 model;                    /* Monitor Model */
 285         __u32 serial;                   /* Serial Number - Integer */
 286         __u32 year;                     /* Year manufactured */
 287         __u32 week;                     /* Week Manufactured */
 288         __u32 hfmin;                    /* hfreq lower limit (Hz) */
 289         __u32 hfmax;                    /* hfreq upper limit (Hz) */
 290         __u32 dclkmin;                  /* pixelclock lower limit (Hz) */
 291         __u32 dclkmax;                  /* pixelclock upper limit (Hz) */
 292         __u16 input;                    /* display type - see FB_DISP_* */
 293         __u16 dpms;                     /* DPMS support - see FB_DPMS_ */
 294         __u16 signal;                   /* Signal Type - see FB_SIGNAL_* */
 295         __u16 vfmin;                    /* vfreq lower limit (Hz) */
 296         __u16 vfmax;                    /* vfreq upper limit (Hz) */
 297         __u16 gamma;                    /* Gamma - in fractions of 100 */
 298         __u16 gtf       : 1;            /* supports GTF */
 299         __u16 misc;                     /* Misc flags - see FB_MISC_* */
 300         __u8  version;                  /* EDID version... */
 301         __u8  revision;                 /* ...and revision */
 302         __u8  max_x;                    /* Maximum horizontal size (cm) */
 303         __u8  max_y;                    /* Maximum vertical size (cm) */
 304 };
 305
 306 #define FB_VBLANK_VBLANKING     0x001   /* currently in a vertical blank */
 307 #define FB_VBLANK_HBLANKING     0x002   /* currently in a horizontal blank */
 308 #define FB_VBLANK_HAVE_VBLANK   0x004   /* vertical blanks can be detected */
 309 #define FB_VBLANK_HAVE_HBLANK   0x008   /* horizontal blanks can be detected */
 310 #define FB_VBLANK_HAVE_COUNT    0x010   /* global retrace counter is available */
 311 #define FB_VBLANK_HAVE_VCOUNT   0x020   /* the vcount field is valid */
 312 #define FB_VBLANK_HAVE_HCOUNT   0x040   /* the hcount field is valid */
 313 #define FB_VBLANK_VSYNCING      0x080   /* currently in a vsync */
 314 #define FB_VBLANK_HAVE_VSYNC    0x100   /* verical syncs can be detected */
 315
 316 struct fb_vblank {
 317         __u32 flags;                    /* FB_VBLANK flags */
 318         __u32 count;                    /* counter of retraces since boot */
 319         __u32 vcount;                   /* current scanline position */
 320         __u32 hcount;                   /* current scandot position */
 321         __u32 reserved[4];              /* reserved for future compatibility */
 322 };
 323
 324 /* Internal HW accel */
 325 #define ROP_COPY 0
 326 #define ROP_XOR  1
 327
 328 struct fb_copyarea {
 329         __u32 dx;
 330         __u32 dy;
 331         __u32 width;
 332         __u32 height;
 333         __u32 sx;
 334         __u32 sy;
 335 };
 336
 337 struct fb_fillrect {
 338         __u32 dx;       /* screen-relative */
 339         __u32 dy;
 340         __u32 width;
 341         __u32 height;
 342         __u32 color;
 343         __u32 rop;
 344 };
 345
 346 struct fb_image {
 347         __u32 dx;               /* Where to place image */
 348         __u32 dy;
 349         __u32 width;            /* Size of image */
 350         __u32 height;
 351         __u32 fg_color;         /* Only used when a mono bitmap */
 352         __u32 bg_color;
 353         __u8  depth;            /* Depth of the image */
 354         const char *data;       /* Pointer to image data */
 355         struct fb_cmap cmap;    /* color map info */
 356 };
 357
 358 /*
 359  * hardware cursor control
 360  */
 361
 362 #define FB_CUR_SETCUR   0x01
 363 #define FB_CUR_SETPOS   0x02
 364 #define FB_CUR_SETHOT   0x04
 365 #define FB_CUR_SETCMAP  0x08
 366 #define FB_CUR_SETSHAPE 0x10
 367 #define FB_CUR_SETSIZE  0x20
 368 #define FB_CUR_SETALL   0xFF
 369
 370 struct fbcurpos {
 371         __u16 x, y;
 372 };
 373
 374 struct fb_cursor {
 375         __u16 set;              /* what to set */
 376         __u16 enable;           /* cursor on/off */
 377         __u16 rop;              /* bitop operation */
 378         char *mask;             /* cursor mask bits */
 379         struct fbcurpos hot;    /* cursor hot spot */
 380         struct fb_image image;  /* Cursor image */
 381 };
 382
 383 #ifdef __KERNEL__
 384
 385 #include <linux/fs.h>
 386 #include <linux/init.h>
 387 #include <linux/tty.h>
 388 #include <linux/device.h>
 389 #include <linux/workqueue.h>
 390 #include <linux/devfs_fs_kernel.h>
 391 #include <linux/notifier.h>
 392 #include <asm/io.h>
 393
 394 struct vm_area_struct;
 395 struct fb_info;
 396 struct device;
 397 struct file;
 398
 399 /*
 400  * Register/unregister for framebuffer events
 401  */
 402
 403 /*      The resolution of the passed in fb_info about to change */
 404 #define FB_EVENT_MODE_CHANGE            0x01
 405 /*      The display on this fb_info is beeing suspended, no access to the
 406  *      framebuffer is allowed any more after that call returns
 407  */
 408 #define FB_EVENT_SUSPEND                0x02
 409 /*      The display on this fb_info was resumed, you can restore the display
 410  *      if you own it
 411  */
 412 #define FB_EVENT_RESUME                 0x03
 413
 414 extern int fb_register_client(struct notifier_block *nb);
 415 extern int fb_unregister_client(struct notifier_block *nb);
 416
 417 /*
 418  * Pixmap structure definition
 419  *
 420  * The purpose of this structure is to translate data
 421  * from the hardware independent format of fbdev to what
 422  * format the hardware needs.
 423  */
 424
 425 #define FB_PIXMAP_DEFAULT 1     /* used internally by fbcon */
 426 #define FB_PIXMAP_SYSTEM  2     /* memory is in system RAM  */
 427 #define FB_PIXMAP_IO      4     /* memory is iomapped       */
 428 #define FB_PIXMAP_SYNC    256   /* set if GPU can DMA       */
 429
 430 struct fb_pixmap {
 431         u8  *addr;              /* pointer to memory                    */
 432         u32 size;               /* size of buffer in bytes              */
 433         u32 offset;             /* current offset to buffer             */
 434         u32 buf_align;          /* byte alignment of each bitmap        */
 435         u32 scan_align;         /* alignment per scanline               */
 436         u32 access_align;       /* alignment per read/write             */
 437         u32 flags;              /* see FB_PIXMAP_*                      */
 438         /* access methods */
 439         void (*outbuf)(struct fb_info *info, u8 *addr, u8 *src, unsigned int size);
 440         u8   (*inbuf) (struct fb_info *info, u8 *addr);
 441 };
 442
 443
 444 /*
 445  * Frame buffer operations
 446  *
 447  * LOCKING NOTE: those functions must _ALL_ be called with the console
 448  * semaphore held, this is the only suitable locking mecanism we have
 449  * in 2.6. Some may be called at interrupt time at this point though.
 450  */
 451
 452 struct fb_ops {
 453         /* open/release and usage marking */
 454         struct module *owner;
 455         int (*fb_open)(struct fb_info *info, int user);
 456         int (*fb_release)(struct fb_info *info, int user);
 457
 458         /* For framebuffers with strange non linear layouts or that do not
 459          * work with normal memory mapped access
 460          */
 461         ssize_t (*fb_read)(struct file *file, char *buf, size_t count, loff_t *ppos);
 462         ssize_t (*fb_write)(struct file *file, const char *buf, size_t count, loff_t *ppos);
 463
 464         /* checks var and eventually tweaks it to something supported,
 465          * DO NOT MODIFY PAR */
 466         int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
 467
 468         /* set the video mode according to info->var */
 469         int (*fb_set_par)(struct fb_info *info);
 470
 471         /* set color register */
 472         int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green,
 473                             unsigned blue, unsigned transp, struct fb_info *info);
 474
 475         /* blank display */
 476         int (*fb_blank)(int blank, struct fb_info *info);
 477
 478         /* pan display */
 479         int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info);
 480
 481         /* Draws a rectangle */
 482         void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);
 483         /* Copy data from area to another */
 484         void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);
 485         /* Draws a image to the display */
 486         void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
 487
 488         /* Draws cursor */
 489         int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
 490
 491         /* Rotates the display */
 492         void (*fb_rotate)(struct fb_info *info, int angle);
 493
 494         /* wait for blit idle, optional */
 495         int (*fb_sync)(struct fb_info *info);
 496
 497         /* perform fb specific ioctl (optional) */
 498         int (*fb_ioctl)(struct inode *inode, struct file *file, unsigned int cmd,
 499                         unsigned long arg, struct fb_info *info);
 500
 501         /* perform fb specific mmap */
 502         int (*fb_mmap)(struct fb_info *info, struct file *file, struct vm_area_struct *vma);
 503 };
 504
 505 struct fb_info {
 506         int node;
 507         int flags;
 508 #define FBINFO_FLAG_MODULE      1       /* Low-level driver is a module */
 509         struct fb_var_screeninfo var;   /* Current var */
 510         struct fb_fix_screeninfo fix;   /* Current fix */
 511         struct fb_monspecs monspecs;    /* Current Monitor specs */
 512         struct fb_cursor cursor;        /* Current cursor */
 513         struct work_struct queue;       /* Framebuffer event queue */
 514         struct fb_pixmap pixmap;        /* Image hardware mapper */
 515         struct fb_pixmap sprite;        /* Cursor hardware mapper */
 516         struct fb_cmap cmap;            /* Current cmap */
 517         struct fb_ops *fbops;
 518         char *screen_base;              /* Virtual address */
 519         struct vc_data *display_fg;     /* Console visible on this display */
 520         int currcon;                    /* Current VC. */
 521         void *pseudo_palette;           /* Fake palette of 16 colors */
 522 #define FBINFO_STATE_RUNNING    0
 523 #define FBINFO_STATE_SUSPENDED  1
 524         u32 state;                      /* Hardware state i.e suspend */
 525
 526         /* From here on everything is device dependent */
 527         void *par;
 528 };
 529
 530 #ifdef MODULE
 531 #define FBINFO_FLAG_DEFAULT     FBINFO_FLAG_MODULE
 532 #else
 533 #define FBINFO_FLAG_DEFAULT     0
 534 #endif
 535
 536 // This will go away
 537 #if defined(__sparc__)
 538
 539 /* We map all of our framebuffers such that big-endian accesses
 540  * are what we want, so the following is sufficient.
 541  */
 542
 543 // This will go away
 544 #define fb_readb sbus_readb
 545 #define fb_readw sbus_readw
 546 #define fb_readl sbus_readl
 547 #define fb_readq sbus_readq
 548 #define fb_writeb sbus_writeb
 549 #define fb_writew sbus_writew
 550 #define fb_writel sbus_writel
 551 #define fb_writeq sbus_writeq
 552 #define fb_memset sbus_memset_io
 553
 554 #elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || defined(__sh__) || defined(__powerpc__)
 555
 556 #define fb_readb __raw_readb
 557 #define fb_readw __raw_readw
 558 #define fb_readl __raw_readl
 559 #define fb_readq __raw_readq
 560 #define fb_writeb __raw_writeb
 561 #define fb_writew __raw_writew
 562 #define fb_writel __raw_writel
 563 #define fb_writeq __raw_writeq
 564 #define fb_memset memset_io
 565
 566 #else
 567
 568 #define fb_readb(addr) (*(volatile u8 *) (addr))
 569 #define fb_readw(addr) (*(volatile u16 *) (addr))
 570 #define fb_readl(addr) (*(volatile u32 *) (addr))
 571 #define fb_readq(addr) (*(volatile u64 *) (addr))
 572 #define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
 573 #define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
 574 #define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
 575 #define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b))
 576 #define fb_memset memset
 577
 578 #endif
 579
 580     /*
 581      *  `Generic' versions of the frame buffer device operations
 582      */
 583
 584 extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var);
 585 extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var);
 586 extern int fb_blank(struct fb_info *info, int blank);
 587 extern int soft_cursor(struct fb_info *info, struct fb_cursor *cursor);
 588 extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
 589 extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
 590 extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image);
 591
 592 /* drivers/video/fbmem.c */
 593 extern int register_framebuffer(struct fb_info *fb_info);
 594 extern int unregister_framebuffer(struct fb_info *fb_info);
 595 extern int fb_prepare_logo(struct fb_info *fb_info);
 596 extern int fb_show_logo(struct fb_info *fb_info);
 597 extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);
 598 extern void fb_move_buf_unaligned(struct fb_info *info, struct fb_pixmap *buf,
 599                                 u8 *dst, u32 d_pitch, u8 *src, u32 idx,
 600                                 u32 height, u32 shift_high, u32 shift_low, u32 mod);
 601 extern void fb_move_buf_aligned(struct fb_info *info, struct fb_pixmap *buf,
 602                                 u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch,
 603                                 u32 height);
 604 extern void fb_load_cursor_image(struct fb_info *);
 605 extern void fb_set_suspend(struct fb_info *info, int state);
 606
 607 extern struct fb_info *registered_fb[FB_MAX];
 608 extern int num_registered_fb;
 609
 610 /* drivers/video/fbsysfs.c */
 611 extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);
 612 extern void framebuffer_release(struct fb_info *info);
 613
 614 /* drivers/video/fbmon.c */
 615 #define FB_MAXTIMINGS           0
 616 #define FB_VSYNCTIMINGS         1
 617 #define FB_HSYNCTIMINGS         2
 618 #define FB_DCLKTIMINGS          3
 619 #define FB_IGNOREMON            0x100
 620
 621 #define FB_MODE_IS_UNKNOWN      0
 622 #define FB_MODE_IS_DETAILED     1
 623 #define FB_MODE_IS_STANDARD     2
 624 #define FB_MODE_IS_VESA         4
 625 #define FB_MODE_IS_CALCULATED   8
 626 #define FB_MODE_IS_FIRST        16
 627
 628 extern int fbmon_valid_timings(u_int pixclock, u_int htotal, u_int vtotal,
 629                                const struct fb_info *fb_info);
 630 extern int fbmon_dpms(const struct fb_info *fb_info);
 631 extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var,
 632                        struct fb_info *info);
 633 extern int fb_validate_mode(const struct fb_var_screeninfo *var,
 634                             struct fb_info *info);
 635 extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);
 636 extern int fb_get_monitor_limits(unsigned char *edid, struct fb_monspecs *specs);
 637 extern void fb_edid_to_monspecs(unsigned char *edid, struct fb_monspecs *specs);
 638 extern int fb_get_monitor_limits(unsigned char *edid, struct fb_monspecs *specs);
 639 extern struct fb_videomode *fb_create_modedb(unsigned char *edid, int *dbsize);
 640 extern void fb_destroy_modedb(struct fb_videomode *modedb);
 641
 642 /* drivers/video/modedb.c */
 643 #define VESA_MODEDB_SIZE 34
 644 extern const struct fb_videomode vesa_modes[];
 645
 646 /* drivers/video/fbcmap.c */
 647 extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);
 648 extern void fb_dealloc_cmap(struct fb_cmap *cmap);
 649 extern int fb_copy_cmap(struct fb_cmap *from, struct fb_cmap *to, int fsfromto);
 650 extern int fb_set_cmap(struct fb_cmap *cmap, int kspc, struct fb_info *fb_info);
 651 extern struct fb_cmap *fb_default_cmap(int len);
 652 extern void fb_invert_cmaps(void);
 653
 654 struct fb_videomode {
 655         const char *name;       /* optional */
 656         u32 refresh;            /* optional */
 657         u32 xres;
 658         u32 yres;
 659         u32 pixclock;
 660         u32 left_margin;
 661         u32 right_margin;
 662         u32 upper_margin;
 663         u32 lower_margin;
 664         u32 hsync_len;
 665         u32 vsync_len;
 666         u32 sync;
 667         u32 vmode;
 668         u32 flag;
 669 };
 670
 671 extern int fb_find_mode(struct fb_var_screeninfo *var,
 672                         struct fb_info *info, const char *mode_option,
 673                         const struct fb_videomode *db,
 674                         unsigned int dbsize,
 675                         const struct fb_videomode *default_mode,
 676                         unsigned int default_bpp);
 677
 678 #endif /* __KERNEL__ */
 679
 680 #endif /* _LINUX_FB_H */