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      1 #ifndef _LINUX_FB_H
      2 #define _LINUX_FB_H
      3 
      4 #include <asm/types.h>
      5 
      6 /* Definitions of frame buffers						*/
      7 
      8 #define FB_MAJOR		29
      9 #define FB_MAX			32	/* sufficient for now */
     10 
     11 /* ioctls
     12    0x46 is 'F'								*/
     13 #define FBIOGET_VSCREENINFO	0x4600
     14 #define FBIOPUT_VSCREENINFO	0x4601
     15 #define FBIOGET_FSCREENINFO	0x4602
     16 #define FBIOGETCMAP		0x4604
     17 #define FBIOPUTCMAP		0x4605
     18 #define FBIOPAN_DISPLAY		0x4606
     19 #ifdef __KERNEL__
     20 #define FBIO_CURSOR            _IOWR('F', 0x08, struct fb_cursor_user)
     21 #else
     22 #define FBIO_CURSOR            _IOWR('F', 0x08, struct fb_cursor)
     23 #endif
     24 /* 0x4607-0x460B are defined below */
     25 /* #define FBIOGET_MONITORSPEC	0x460C */
     26 /* #define FBIOPUT_MONITORSPEC	0x460D */
     27 /* #define FBIOSWITCH_MONIBIT	0x460E */
     28 #define FBIOGET_CON2FBMAP	0x460F
     29 #define FBIOPUT_CON2FBMAP	0x4610
     30 #define FBIOBLANK		0x4611		/* arg: 0 or vesa level + 1 */
     31 #define FBIOGET_VBLANK		_IOR('F', 0x12, struct fb_vblank)
     32 #define FBIO_ALLOC              0x4613
     33 #define FBIO_FREE               0x4614
     34 #define FBIOGET_GLYPH           0x4615
     35 #define FBIOGET_HWCINFO         0x4616
     36 #define FBIOPUT_MODEINFO        0x4617
     37 #define FBIOGET_DISPINFO        0x4618
     38 
     39 
     40 #define FB_TYPE_PACKED_PIXELS		0	/* Packed Pixels	*/
     41 #define FB_TYPE_PLANES			1	/* Non interleaved planes */
     42 #define FB_TYPE_INTERLEAVED_PLANES	2	/* Interleaved planes	*/
     43 #define FB_TYPE_TEXT			3	/* Text/attributes	*/
     44 #define FB_TYPE_VGA_PLANES		4	/* EGA/VGA planes	*/
     45 
     46 #define FB_AUX_TEXT_MDA		0	/* Monochrome text */
     47 #define FB_AUX_TEXT_CGA		1	/* CGA/EGA/VGA Color text */
     48 #define FB_AUX_TEXT_S3_MMIO	2	/* S3 MMIO fasttext */
     49 #define FB_AUX_TEXT_MGA_STEP16	3	/* MGA Millenium I: text, attr, 14 reserved bytes */
     50 #define FB_AUX_TEXT_MGA_STEP8	4	/* other MGAs:      text, attr,  6 reserved bytes */
     51 
     52 #define FB_AUX_VGA_PLANES_VGA4		0	/* 16 color planes (EGA/VGA) */
     53 #define FB_AUX_VGA_PLANES_CFB4		1	/* CFB4 in planes (VGA) */
     54 #define FB_AUX_VGA_PLANES_CFB8		2	/* CFB8 in planes (VGA) */
     55 
     56 #define FB_VISUAL_MONO01		0	/* Monochr. 1=Black 0=White */
     57 #define FB_VISUAL_MONO10		1	/* Monochr. 1=White 0=Black */
     58 #define FB_VISUAL_TRUECOLOR		2	/* True color	*/
     59 #define FB_VISUAL_PSEUDOCOLOR		3	/* Pseudo color (like atari) */
     60 #define FB_VISUAL_DIRECTCOLOR		4	/* Direct color */
     61 #define FB_VISUAL_STATIC_PSEUDOCOLOR	5	/* Pseudo color readonly */
     62 
     63 #define FB_ACCEL_NONE		0	/* no hardware accelerator	*/
     64 #define FB_ACCEL_ATARIBLITT	1	/* Atari Blitter		*/
     65 #define FB_ACCEL_AMIGABLITT	2	/* Amiga Blitter                */
     66 #define FB_ACCEL_S3_TRIO64	3	/* Cybervision64 (S3 Trio64)    */
     67 #define FB_ACCEL_NCR_77C32BLT	4	/* RetinaZ3 (NCR 77C32BLT)      */
     68 #define FB_ACCEL_S3_VIRGE	5	/* Cybervision64/3D (S3 ViRGE)	*/
     69 #define FB_ACCEL_ATI_MACH64GX	6	/* ATI Mach 64GX family		*/
     70 #define FB_ACCEL_DEC_TGA	7	/* DEC 21030 TGA		*/
     71 #define FB_ACCEL_ATI_MACH64CT	8	/* ATI Mach 64CT family		*/
     72 #define FB_ACCEL_ATI_MACH64VT	9	/* ATI Mach 64CT family VT class */
     73 #define FB_ACCEL_ATI_MACH64GT	10	/* ATI Mach 64CT family GT class */
     74 #define FB_ACCEL_SUN_CREATOR	11	/* Sun Creator/Creator3D	*/
     75 #define FB_ACCEL_SUN_CGSIX	12	/* Sun cg6			*/
     76 #define FB_ACCEL_SUN_LEO	13	/* Sun leo/zx			*/
     77 #define FB_ACCEL_IMS_TWINTURBO	14	/* IMS Twin Turbo		*/
     78 #define FB_ACCEL_3DLABS_PERMEDIA2 15	/* 3Dlabs Permedia 2		*/
     79 #define FB_ACCEL_MATROX_MGA2064W 16	/* Matrox MGA2064W (Millenium)	*/
     80 #define FB_ACCEL_MATROX_MGA1064SG 17	/* Matrox MGA1064SG (Mystique)	*/
     81 #define FB_ACCEL_MATROX_MGA2164W 18	/* Matrox MGA2164W (Millenium II) */
     82 #define FB_ACCEL_MATROX_MGA2164W_AGP 19	/* Matrox MGA2164W (Millenium II) */
     83 #define FB_ACCEL_MATROX_MGAG100	20	/* Matrox G100 (Productiva G100) */
     84 #define FB_ACCEL_MATROX_MGAG200	21	/* Matrox G200 (Myst, Mill, ...) */
     85 #define FB_ACCEL_SUN_CG14	22	/* Sun cgfourteen		 */
     86 #define FB_ACCEL_SUN_BWTWO	23	/* Sun bwtwo			*/
     87 #define FB_ACCEL_SUN_CGTHREE	24	/* Sun cgthree			*/
     88 #define FB_ACCEL_SUN_TCX	25	/* Sun tcx			*/
     89 #define FB_ACCEL_MATROX_MGAG400	26	/* Matrox G400			*/
     90 #define FB_ACCEL_NV3		27	/* nVidia RIVA 128              */
     91 #define FB_ACCEL_NV4		28	/* nVidia RIVA TNT		*/
     92 #define FB_ACCEL_NV5		29	/* nVidia RIVA TNT2		*/
     93 #define FB_ACCEL_CT_6555x	30	/* C&T 6555x			*/
     94 #define FB_ACCEL_3DFX_BANSHEE	31	/* 3Dfx Banshee			*/
     95 #define FB_ACCEL_ATI_RAGE128	32	/* ATI Rage128 family		*/
     96 #define FB_ACCEL_IGS_CYBER2000	33	/* CyberPro 2000		*/
     97 #define FB_ACCEL_IGS_CYBER2010	34	/* CyberPro 2010		*/
     98 #define FB_ACCEL_IGS_CYBER5000	35	/* CyberPro 5000		*/
     99 #define FB_ACCEL_SIS_GLAMOUR    36	/* SiS 300/630/540              */
    100 #define FB_ACCEL_3DLABS_PERMEDIA3 37	/* 3Dlabs Permedia 3		*/
    101 #define FB_ACCEL_ATI_RADEON	38	/* ATI Radeon family		*/
    102 #define FB_ACCEL_I810           39      /* Intel 810/815                */
    103 #define FB_ACCEL_SIS_GLAMOUR_2  40	/* SiS 315, 650, 740		*/
    104 #define FB_ACCEL_SIS_XABRE      41	/* SiS 330 ("Xabre")		*/
    105 #define FB_ACCEL_I830           42      /* Intel 830M/845G/85x/865G     */
    106 #define FB_ACCEL_NV_10          43      /* nVidia Arch 10               */
    107 #define FB_ACCEL_NV_20          44      /* nVidia Arch 20               */
    108 #define FB_ACCEL_NV_30          45      /* nVidia Arch 30               */
    109 #define FB_ACCEL_NV_40          46      /* nVidia Arch 40               */
    110 #define FB_ACCEL_XGI_VOLARI_V	47	/* XGI Volari V3XT, V5, V8      */
    111 #define FB_ACCEL_XGI_VOLARI_Z	48	/* XGI Volari Z7                */
    112 #define FB_ACCEL_OMAP1610       49	/* TI OMAP16xx                  */
    113 #define FB_ACCEL_NEOMAGIC_NM2070 90	/* NeoMagic NM2070              */
    114 #define FB_ACCEL_NEOMAGIC_NM2090 91	/* NeoMagic NM2090              */
    115 #define FB_ACCEL_NEOMAGIC_NM2093 92	/* NeoMagic NM2093              */
    116 #define FB_ACCEL_NEOMAGIC_NM2097 93	/* NeoMagic NM2097              */
    117 #define FB_ACCEL_NEOMAGIC_NM2160 94	/* NeoMagic NM2160              */
    118 #define FB_ACCEL_NEOMAGIC_NM2200 95	/* NeoMagic NM2200              */
    119 #define FB_ACCEL_NEOMAGIC_NM2230 96	/* NeoMagic NM2230              */
    120 #define FB_ACCEL_NEOMAGIC_NM2360 97	/* NeoMagic NM2360              */
    121 #define FB_ACCEL_NEOMAGIC_NM2380 98	/* NeoMagic NM2380              */
    122 
    123 #define FB_ACCEL_SAVAGE4        0x80	/* S3 Savage4                   */
    124 #define FB_ACCEL_SAVAGE3D       0x81	/* S3 Savage3D                  */
    125 #define FB_ACCEL_SAVAGE3D_MV    0x82	/* S3 Savage3D-MV               */
    126 #define FB_ACCEL_SAVAGE2000     0x83	/* S3 Savage2000                */
    127 #define FB_ACCEL_SAVAGE_MX_MV   0x84	/* S3 Savage/MX-MV              */
    128 #define FB_ACCEL_SAVAGE_MX      0x85	/* S3 Savage/MX                 */
    129 #define FB_ACCEL_SAVAGE_IX_MV   0x86	/* S3 Savage/IX-MV              */
    130 #define FB_ACCEL_SAVAGE_IX      0x87	/* S3 Savage/IX                 */
    131 #define FB_ACCEL_PROSAVAGE_PM   0x88	/* S3 ProSavage PM133           */
    132 #define FB_ACCEL_PROSAVAGE_KM   0x89	/* S3 ProSavage KM133           */
    133 #define FB_ACCEL_S3TWISTER_P    0x8a	/* S3 Twister                   */
    134 #define FB_ACCEL_S3TWISTER_K    0x8b	/* S3 TwisterK                  */
    135 #define FB_ACCEL_SUPERSAVAGE    0x8c    /* S3 Supersavage               */
    136 #define FB_ACCEL_PROSAVAGE_DDR  0x8d	/* S3 ProSavage DDR             */
    137 #define FB_ACCEL_PROSAVAGE_DDRK 0x8e	/* S3 ProSavage DDR-K           */
    138 
    139 struct fb_fix_screeninfo {
    140 	char id[16];			/* identification string eg "TT Builtin" */
    141 	unsigned long smem_start;	/* Start of frame buffer mem */
    142 					/* (physical address) */
    143 	__u32 smem_len;			/* Length of frame buffer mem */
    144 	__u32 type;			/* see FB_TYPE_*		*/
    145 	__u32 type_aux;			/* Interleave for interleaved Planes */
    146 	__u32 visual;			/* see FB_VISUAL_*		*/
    147 	__u16 xpanstep;			/* zero if no hardware panning  */
    148 	__u16 ypanstep;			/* zero if no hardware panning  */
    149 	__u16 ywrapstep;		/* zero if no hardware ywrap    */
    150 	__u32 line_length;		/* length of a line in bytes    */
    151 	unsigned long mmio_start;	/* Start of Memory Mapped I/O   */
    152 					/* (physical address) */
    153 	__u32 mmio_len;			/* Length of Memory Mapped I/O  */
    154 	__u32 accel;			/* Indicate to driver which	*/
    155 					/*  specific chip/card we have	*/
    156 	__u16 reserved[3];		/* Reserved for future compatibility */
    157 };
    158 
    159 /* Interpretation of offset for color fields: All offsets are from the right,
    160  * inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
    161  * can use the offset as right argument to <<). A pixel afterwards is a bit
    162  * stream and is written to video memory as that unmodified. This implies
    163  * big-endian byte order if bits_per_pixel is greater than 8.
    164  */
    165 struct fb_bitfield {
    166 	__u32 offset;			/* beginning of bitfield	*/
    167 	__u32 length;			/* length of bitfield		*/
    168 	__u32 msb_right;		/* != 0 : Most significant bit is */
    169 					/* right */
    170 };
    171 
    172 #define FB_NONSTD_HAM		1	/* Hold-And-Modify (HAM)        */
    173 
    174 #define FB_ACTIVATE_NOW		0	/* set values immediately (or vbl)*/
    175 #define FB_ACTIVATE_NXTOPEN	1	/* activate on next open	*/
    176 #define FB_ACTIVATE_TEST	2	/* don't set, round up impossible */
    177 #define FB_ACTIVATE_MASK       15
    178 					/* values			*/
    179 #define FB_ACTIVATE_VBL	       16	/* activate values on next vbl  */
    180 #define FB_CHANGE_CMAP_VBL     32	/* change colormap on vbl	*/
    181 #define FB_ACTIVATE_ALL	       64	/* change all VCs on this fb	*/
    182 #define FB_ACTIVATE_FORCE     128	/* force apply even when no change*/
    183 #define FB_ACTIVATE_INV_MODE  256       /* invalidate videomode */
    184 
    185 #define FB_ACCELF_TEXT		1	/* (OBSOLETE) see fb_info.flags and vc_mode */
    186 
    187 #define FB_SYNC_HOR_HIGH_ACT	1	/* horizontal sync high active	*/
    188 #define FB_SYNC_VERT_HIGH_ACT	2	/* vertical sync high active	*/
    189 #define FB_SYNC_EXT		4	/* external sync		*/
    190 #define FB_SYNC_COMP_HIGH_ACT	8	/* composite sync high active   */
    191 #define FB_SYNC_BROADCAST	16	/* broadcast video timings      */
    192 					/* vtotal = 144d/288n/576i => PAL  */
    193 					/* vtotal = 121d/242n/484i => NTSC */
    194 #define FB_SYNC_ON_GREEN	32	/* sync on green */
    195 
    196 #define FB_VMODE_NONINTERLACED  0	/* non interlaced */
    197 #define FB_VMODE_INTERLACED	1	/* interlaced	*/
    198 #define FB_VMODE_DOUBLE		2	/* double scan */
    199 #define FB_VMODE_MASK		255
    200 
    201 #define FB_VMODE_YWRAP		256	/* ywrap instead of panning     */
    202 #define FB_VMODE_SMOOTH_XPAN	512	/* smooth xpan possible (internally used) */
    203 #define FB_VMODE_CONUPDATE	512	/* don't update x/yoffset	*/
    204 
    205 /*
    206  * Display rotation support
    207  */
    208 #define FB_ROTATE_UR      0
    209 #define FB_ROTATE_CW      1
    210 #define FB_ROTATE_UD      2
    211 #define FB_ROTATE_CCW     3
    212 
    213 #define PICOS2KHZ(a) (1000000000UL/(a))
    214 #define KHZ2PICOS(a) (1000000000UL/(a))
    215 
    216 struct fb_var_screeninfo {
    217 	__u32 xres;			/* visible resolution		*/
    218 	__u32 yres;
    219 	__u32 xres_virtual;		/* virtual resolution		*/
    220 	__u32 yres_virtual;
    221 	__u32 xoffset;			/* offset from virtual to visible */
    222 	__u32 yoffset;			/* resolution			*/
    223 
    224 	__u32 bits_per_pixel;		/* guess what			*/
    225 	__u32 grayscale;		/* != 0 Graylevels instead of colors */
    226 
    227 	struct fb_bitfield red;		/* bitfield in fb mem if true color, */
    228 	struct fb_bitfield green;	/* else only length is significant */
    229 	struct fb_bitfield blue;
    230 	struct fb_bitfield transp;	/* transparency			*/
    231 
    232 	__u32 nonstd;			/* != 0 Non standard pixel format */
    233 
    234 	__u32 activate;			/* see FB_ACTIVATE_*		*/
    235 
    236 	__u32 height;			/* height of picture in mm    */
    237 	__u32 width;			/* width of picture in mm     */
    238 
    239 	__u32 accel_flags;		/* (OBSOLETE) see fb_info.flags */
    240 
    241 	/* Timing: All values in pixclocks, except pixclock (of course) */
    242 	__u32 pixclock;			/* pixel clock in ps (pico seconds) */
    243 	__u32 left_margin;		/* time from sync to picture	*/
    244 	__u32 right_margin;		/* time from picture to sync	*/
    245 	__u32 upper_margin;		/* time from sync to picture	*/
    246 	__u32 lower_margin;
    247 	__u32 hsync_len;		/* length of horizontal sync	*/
    248 	__u32 vsync_len;		/* length of vertical sync	*/
    249 	__u32 sync;			/* see FB_SYNC_*		*/
    250 	__u32 vmode;			/* see FB_VMODE_*		*/
    251 	__u32 rotate;			/* angle we rotate counter clockwise */
    252 	__u32 reserved[5];		/* Reserved for future compatibility */
    253 };
    254 
    255 struct fb_cmap {
    256 	__u32 start;			/* First entry	*/
    257 	__u32 len;			/* Number of entries */
    258 	__u16 *red;			/* Red values	*/
    259 	__u16 *green;
    260 	__u16 *blue;
    261 	__u16 *transp;			/* transparency, can be NULL */
    262 };
    263 
    264 struct fb_con2fbmap {
    265 	__u32 console;
    266 	__u32 framebuffer;
    267 };
    268 
    269 /* VESA Blanking Levels */
    270 #define VESA_NO_BLANKING        0
    271 #define VESA_VSYNC_SUSPEND      1
    272 #define VESA_HSYNC_SUSPEND      2
    273 #define VESA_POWERDOWN          3
    274 
    275 
    276 enum {
    277 	/* screen: unblanked, hsync: on,  vsync: on */
    278 	FB_BLANK_UNBLANK       = VESA_NO_BLANKING,
    279 
    280 	/* screen: blanked,   hsync: on,  vsync: on */
    281 	FB_BLANK_NORMAL        = VESA_NO_BLANKING + 1,
    282 
    283 	/* screen: blanked,   hsync: on,  vsync: off */
    284 	FB_BLANK_VSYNC_SUSPEND = VESA_VSYNC_SUSPEND + 1,
    285 
    286 	/* screen: blanked,   hsync: off, vsync: on */
    287 	FB_BLANK_HSYNC_SUSPEND = VESA_HSYNC_SUSPEND + 1,
    288 
    289 	/* screen: blanked,   hsync: off, vsync: off */
    290 	FB_BLANK_POWERDOWN     = VESA_POWERDOWN + 1
    291 };
    292 
    293 #define FB_VBLANK_VBLANKING	0x001	/* currently in a vertical blank */
    294 #define FB_VBLANK_HBLANKING	0x002	/* currently in a horizontal blank */
    295 #define FB_VBLANK_HAVE_VBLANK	0x004	/* vertical blanks can be detected */
    296 #define FB_VBLANK_HAVE_HBLANK	0x008	/* horizontal blanks can be detected */
    297 #define FB_VBLANK_HAVE_COUNT	0x010	/* global retrace counter is available */
    298 #define FB_VBLANK_HAVE_VCOUNT	0x020	/* the vcount field is valid */
    299 #define FB_VBLANK_HAVE_HCOUNT	0x040	/* the hcount field is valid */
    300 #define FB_VBLANK_VSYNCING	0x080	/* currently in a vsync */
    301 #define FB_VBLANK_HAVE_VSYNC	0x100	/* verical syncs can be detected */
    302 
    303 struct fb_vblank {
    304 	__u32 flags;			/* FB_VBLANK flags */
    305 	__u32 count;			/* counter of retraces since boot */
    306 	__u32 vcount;			/* current scanline position */
    307 	__u32 hcount;			/* current scandot position */
    308 	__u32 reserved[4];		/* reserved for future compatibility */
    309 };
    310 
    311 /* Internal HW accel */
    312 #define ROP_COPY 0
    313 #define ROP_XOR  1
    314 
    315 struct fb_copyarea {
    316 	__u32 dx;
    317 	__u32 dy;
    318 	__u32 width;
    319 	__u32 height;
    320 	__u32 sx;
    321 	__u32 sy;
    322 };
    323 
    324 struct fb_fillrect {
    325 	__u32 dx;	/* screen-relative */
    326 	__u32 dy;
    327 	__u32 width;
    328 	__u32 height;
    329 	__u32 color;
    330 	__u32 rop;
    331 };
    332 
    333 struct fb_image {
    334 	__u32 dx;		/* Where to place image */
    335 	__u32 dy;
    336 	__u32 width;		/* Size of image */
    337 	__u32 height;
    338 	__u32 fg_color;		/* Only used when a mono bitmap */
    339 	__u32 bg_color;
    340 	__u8  depth;		/* Depth of the image */
    341 	const char *data;	/* Pointer to image data */
    342 	struct fb_cmap cmap;	/* color map info */
    343 };
    344 
    345 /*
    346  * hardware cursor control
    347  */
    348 
    349 #define FB_CUR_SETIMAGE 0x01
    350 #define FB_CUR_SETPOS   0x02
    351 #define FB_CUR_SETHOT   0x04
    352 #define FB_CUR_SETCMAP  0x08
    353 #define FB_CUR_SETSHAPE 0x10
    354 #define FB_CUR_SETSIZE	0x20
    355 #define FB_CUR_SETALL   0xFF
    356 
    357 struct fbcurpos {
    358 	__u16 x, y;
    359 };
    360 
    361 struct fb_cursor {
    362 	__u16 set;		/* what to set */
    363 	__u16 enable;		/* cursor on/off */
    364 	__u16 rop;		/* bitop operation */
    365 	const char *mask;	/* cursor mask bits */
    366 	struct fbcurpos hot;	/* cursor hot spot */
    367 	struct fb_image	image;	/* Cursor image */
    368 };
    369 
    370 #ifdef CONFIG_FB_BACKLIGHT
    371 /* Settings for the generic backlight code */
    372 #define FB_BACKLIGHT_LEVELS	128
    373 #define FB_BACKLIGHT_MAX	0xFF
    374 #endif
    375 
    376 #ifdef __KERNEL__
    377 
    378 #include <linux/fs.h>
    379 #include <linux/init.h>
    380 #include <linux/device.h>
    381 #include <linux/workqueue.h>
    382 #include <linux/notifier.h>
    383 #include <linux/list.h>
    384 #include <linux/backlight.h>
    385 #include <asm/io.h>
    386 
    387 struct vm_area_struct;
    388 struct fb_info;
    389 struct device;
    390 struct file;
    391 
    392 /* Definitions below are used in the parsed monitor specs */
    393 #define FB_DPMS_ACTIVE_OFF	1
    394 #define FB_DPMS_SUSPEND		2
    395 #define FB_DPMS_STANDBY		4
    396 
    397 #define FB_DISP_DDI		1
    398 #define FB_DISP_ANA_700_300	2
    399 #define FB_DISP_ANA_714_286	4
    400 #define FB_DISP_ANA_1000_400	8
    401 #define FB_DISP_ANA_700_000	16
    402 
    403 #define FB_DISP_MONO		32
    404 #define FB_DISP_RGB		64
    405 #define FB_DISP_MULTI		128
    406 #define FB_DISP_UNKNOWN		256
    407 
    408 #define FB_SIGNAL_NONE		0
    409 #define FB_SIGNAL_BLANK_BLANK	1
    410 #define FB_SIGNAL_SEPARATE	2
    411 #define FB_SIGNAL_COMPOSITE	4
    412 #define FB_SIGNAL_SYNC_ON_GREEN	8
    413 #define FB_SIGNAL_SERRATION_ON	16
    414 
    415 #define FB_MISC_PRIM_COLOR	1
    416 #define FB_MISC_1ST_DETAIL	2	/* First Detailed Timing is preferred */
    417 struct fb_chroma {
    418 	__u32 redx;	/* in fraction of 1024 */
    419 	__u32 greenx;
    420 	__u32 bluex;
    421 	__u32 whitex;
    422 	__u32 redy;
    423 	__u32 greeny;
    424 	__u32 bluey;
    425 	__u32 whitey;
    426 };
    427 
    428 struct fb_monspecs {
    429 	struct fb_chroma chroma;
    430 	struct fb_videomode *modedb;	/* mode database */
    431 	__u8  manufacturer[4];		/* Manufacturer */
    432 	__u8  monitor[14];		/* Monitor String */
    433 	__u8  serial_no[14];		/* Serial Number */
    434 	__u8  ascii[14];		/* ? */
    435 	__u32 modedb_len;		/* mode database length */
    436 	__u32 model;			/* Monitor Model */
    437 	__u32 serial;			/* Serial Number - Integer */
    438 	__u32 year;			/* Year manufactured */
    439 	__u32 week;			/* Week Manufactured */
    440 	__u32 hfmin;			/* hfreq lower limit (Hz) */
    441 	__u32 hfmax;			/* hfreq upper limit (Hz) */
    442 	__u32 dclkmin;			/* pixelclock lower limit (Hz) */
    443 	__u32 dclkmax;			/* pixelclock upper limit (Hz) */
    444 	__u16 input;			/* display type - see FB_DISP_* */
    445 	__u16 dpms;			/* DPMS support - see FB_DPMS_ */
    446 	__u16 signal;			/* Signal Type - see FB_SIGNAL_* */
    447 	__u16 vfmin;			/* vfreq lower limit (Hz) */
    448 	__u16 vfmax;			/* vfreq upper limit (Hz) */
    449 	__u16 gamma;			/* Gamma - in fractions of 100 */
    450 	__u16 gtf	: 1;		/* supports GTF */
    451 	__u16 misc;			/* Misc flags - see FB_MISC_* */
    452 	__u8  version;			/* EDID version... */
    453 	__u8  revision;			/* ...and revision */
    454 	__u8  max_x;			/* Maximum horizontal size (cm) */
    455 	__u8  max_y;			/* Maximum vertical size (cm) */
    456 };
    457 
    458 struct fb_cmap_user {
    459 	__u32 start;			/* First entry	*/
    460 	__u32 len;			/* Number of entries */
    461 	__u16 __user *red;		/* Red values	*/
    462 	__u16 __user *green;
    463 	__u16 __user *blue;
    464 	__u16 __user *transp;		/* transparency, can be NULL */
    465 };
    466 
    467 struct fb_image_user {
    468 	__u32 dx;			/* Where to place image */
    469 	__u32 dy;
    470 	__u32 width;			/* Size of image */
    471 	__u32 height;
    472 	__u32 fg_color;			/* Only used when a mono bitmap */
    473 	__u32 bg_color;
    474 	__u8  depth;			/* Depth of the image */
    475 	const char __user *data;	/* Pointer to image data */
    476 	struct fb_cmap_user cmap;	/* color map info */
    477 };
    478 
    479 struct fb_cursor_user {
    480 	__u16 set;			/* what to set */
    481 	__u16 enable;			/* cursor on/off */
    482 	__u16 rop;			/* bitop operation */
    483 	const char __user *mask;	/* cursor mask bits */
    484 	struct fbcurpos hot;		/* cursor hot spot */
    485 	struct fb_image_user image;	/* Cursor image */
    486 };
    487 
    488 /*
    489  * Register/unregister for framebuffer events
    490  */
    491 
    492 /*	The resolution of the passed in fb_info about to change */
    493 #define FB_EVENT_MODE_CHANGE		0x01
    494 /*	The display on this fb_info is beeing suspended, no access to the
    495  *	framebuffer is allowed any more after that call returns
    496  */
    497 #define FB_EVENT_SUSPEND		0x02
    498 /*	The display on this fb_info was resumed, you can restore the display
    499  *	if you own it
    500  */
    501 #define FB_EVENT_RESUME			0x03
    502 /*      An entry from the modelist was removed */
    503 #define FB_EVENT_MODE_DELETE            0x04
    504 /*      A driver registered itself */
    505 #define FB_EVENT_FB_REGISTERED          0x05
    506 /*      A driver unregistered itself */
    507 #define FB_EVENT_FB_UNREGISTERED        0x06
    508 /*      CONSOLE-SPECIFIC: get console to framebuffer mapping */
    509 #define FB_EVENT_GET_CONSOLE_MAP        0x07
    510 /*      CONSOLE-SPECIFIC: set console to framebuffer mapping */
    511 #define FB_EVENT_SET_CONSOLE_MAP        0x08
    512 /*      A display blank is requested       */
    513 #define FB_EVENT_BLANK                  0x09
    514 /*      Private modelist is to be replaced */
    515 #define FB_EVENT_NEW_MODELIST           0x0A
    516 /*	The resolution of the passed in fb_info about to change and
    517         all vc's should be changed         */
    518 #define FB_EVENT_MODE_CHANGE_ALL	0x0B
    519 
    520 struct fb_event {
    521 	struct fb_info *info;
    522 	void *data;
    523 };
    524 
    525 
    526 extern int fb_register_client(struct notifier_block *nb);
    527 extern int fb_unregister_client(struct notifier_block *nb);
    528 extern int fb_notifier_call_chain(unsigned long val, void *v);
    529 /*
    530  * Pixmap structure definition
    531  *
    532  * The purpose of this structure is to translate data
    533  * from the hardware independent format of fbdev to what
    534  * format the hardware needs.
    535  */
    536 
    537 #define FB_PIXMAP_DEFAULT 1     /* used internally by fbcon */
    538 #define FB_PIXMAP_SYSTEM  2     /* memory is in system RAM  */
    539 #define FB_PIXMAP_IO      4     /* memory is iomapped       */
    540 #define FB_PIXMAP_SYNC    256   /* set if GPU can DMA       */
    541 
    542 struct fb_pixmap {
    543 	u8  *addr;		/* pointer to memory			*/
    544 	u32 size;		/* size of buffer in bytes		*/
    545 	u32 offset;		/* current offset to buffer		*/
    546 	u32 buf_align;		/* byte alignment of each bitmap	*/
    547 	u32 scan_align;		/* alignment per scanline		*/
    548 	u32 access_align;	/* alignment per read/write (bits)	*/
    549 	u32 flags;		/* see FB_PIXMAP_*			*/
    550 	/* access methods */
    551 	void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size);
    552 	void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size);
    553 };
    554 
    555 
    556 /*
    557  * Frame buffer operations
    558  *
    559  * LOCKING NOTE: those functions must _ALL_ be called with the console
    560  * semaphore held, this is the only suitable locking mechanism we have
    561  * in 2.6. Some may be called at interrupt time at this point though.
    562  */
    563 
    564 struct fb_ops {
    565 	/* open/release and usage marking */
    566 	struct module *owner;
    567 	int (*fb_open)(struct fb_info *info, int user);
    568 	int (*fb_release)(struct fb_info *info, int user);
    569 
    570 	/* For framebuffers with strange non linear layouts or that do not
    571 	 * work with normal memory mapped access
    572 	 */
    573 	ssize_t (*fb_read)(struct file *file, char __user *buf, size_t count, loff_t *ppos);
    574 	ssize_t (*fb_write)(struct file *file, const char __user *buf, size_t count, loff_t *ppos);
    575 
    576 	/* checks var and eventually tweaks it to something supported,
    577 	 * DO NOT MODIFY PAR */
    578 	int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
    579 
    580 	/* set the video mode according to info->var */
    581 	int (*fb_set_par)(struct fb_info *info);
    582 
    583 	/* set color register */
    584 	int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green,
    585 			    unsigned blue, unsigned transp, struct fb_info *info);
    586 
    587 	/* set color registers in batch */
    588 	int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info);
    589 
    590 	/* blank display */
    591 	int (*fb_blank)(int blank, struct fb_info *info);
    592 
    593 	/* pan display */
    594 	int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info);
    595 
    596 	/* Draws a rectangle */
    597 	void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);
    598 	/* Copy data from area to another */
    599 	void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);
    600 	/* Draws a image to the display */
    601 	void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
    602 
    603 	/* Draws cursor */
    604 	int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
    605 
    606 	/* Rotates the display */
    607 	void (*fb_rotate)(struct fb_info *info, int angle);
    608 
    609 	/* wait for blit idle, optional */
    610 	int (*fb_sync)(struct fb_info *info);
    611 
    612 	/* perform fb specific ioctl (optional) */
    613 	int (*fb_ioctl)(struct fb_info *info, unsigned int cmd,
    614 			unsigned long arg);
    615 
    616 	/* Handle 32bit compat ioctl (optional) */
    617 	int (*fb_compat_ioctl)(struct fb_info *info, unsigned cmd,
    618 			unsigned long arg);
    619 
    620 	/* perform fb specific mmap */
    621 	int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma);
    622 
    623 	/* save current hardware state */
    624 	void (*fb_save_state)(struct fb_info *info);
    625 
    626 	/* restore saved state */
    627 	void (*fb_restore_state)(struct fb_info *info);
    628 };
    629 
    630 #ifdef CONFIG_FB_TILEBLITTING
    631 
    632 #define FB_TILE_CURSOR_NONE        0
    633 #define FB_TILE_CURSOR_UNDERLINE   1
    634 #define FB_TILE_CURSOR_LOWER_THIRD 2
    635 #define FB_TILE_CURSOR_LOWER_HALF  3
    636 #define FB_TILE_CURSOR_TWO_THIRDS  4
    637 #define FB_TILE_CURSOR_BLOCK       5
    638 
    639 struct fb_tilemap {
    640 	__u32 width;                /* width of each tile in pixels */
    641 	__u32 height;               /* height of each tile in scanlines */
    642 	__u32 depth;                /* color depth of each tile */
    643 	__u32 length;               /* number of tiles in the map */
    644 	const __u8 *data;           /* actual tile map: a bitmap array, packed
    645 				       to the nearest byte */
    646 };
    647 
    648 struct fb_tilerect {
    649 	__u32 sx;                   /* origin in the x-axis */
    650 	__u32 sy;                   /* origin in the y-axis */
    651 	__u32 width;                /* number of tiles in the x-axis */
    652 	__u32 height;               /* number of tiles in the y-axis */
    653 	__u32 index;                /* what tile to use: index to tile map */
    654 	__u32 fg;                   /* foreground color */
    655 	__u32 bg;                   /* background color */
    656 	__u32 rop;                  /* raster operation */
    657 };
    658 
    659 struct fb_tilearea {
    660 	__u32 sx;                   /* source origin in the x-axis */
    661 	__u32 sy;                   /* source origin in the y-axis */
    662 	__u32 dx;                   /* destination origin in the x-axis */
    663 	__u32 dy;                   /* destination origin in the y-axis */
    664 	__u32 width;                /* number of tiles in the x-axis */
    665 	__u32 height;               /* number of tiles in the y-axis */
    666 };
    667 
    668 struct fb_tileblit {
    669 	__u32 sx;                   /* origin in the x-axis */
    670 	__u32 sy;                   /* origin in the y-axis */
    671 	__u32 width;                /* number of tiles in the x-axis */
    672 	__u32 height;               /* number of tiles in the y-axis */
    673 	__u32 fg;                   /* foreground color */
    674 	__u32 bg;                   /* background color */
    675 	__u32 length;               /* number of tiles to draw */
    676 	__u32 *indices;             /* array of indices to tile map */
    677 };
    678 
    679 struct fb_tilecursor {
    680 	__u32 sx;                   /* cursor position in the x-axis */
    681 	__u32 sy;                   /* cursor position in the y-axis */
    682 	__u32 mode;                 /* 0 = erase, 1 = draw */
    683 	__u32 shape;                /* see FB_TILE_CURSOR_* */
    684 	__u32 fg;                   /* foreground color */
    685 	__u32 bg;                   /* background color */
    686 };
    687 
    688 struct fb_tile_ops {
    689 	/* set tile characteristics */
    690 	void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map);
    691 
    692 	/* all dimensions from hereon are in terms of tiles */
    693 
    694 	/* move a rectangular region of tiles from one area to another*/
    695 	void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area);
    696 	/* fill a rectangular region with a tile */
    697 	void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect);
    698 	/* copy an array of tiles */
    699 	void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit);
    700 	/* cursor */
    701 	void (*fb_tilecursor)(struct fb_info *info,
    702 			      struct fb_tilecursor *cursor);
    703 };
    704 #endif /* CONFIG_FB_TILEBLITTING */
    705 
    706 /* FBINFO_* = fb_info.flags bit flags */
    707 #define FBINFO_MODULE		0x0001	/* Low-level driver is a module */
    708 #define FBINFO_HWACCEL_DISABLED	0x0002
    709 	/* When FBINFO_HWACCEL_DISABLED is set:
    710 	 *  Hardware acceleration is turned off.  Software implementations
    711 	 *  of required functions (copyarea(), fillrect(), and imageblit())
    712 	 *  takes over; acceleration engine should be in a quiescent state */
    713 
    714 /* hints */
    715 #define FBINFO_PARTIAL_PAN_OK	0x0040 /* otw use pan only for double-buffering */
    716 #define FBINFO_READS_FAST	0x0080 /* soft-copy faster than rendering */
    717 
    718 /* hardware supported ops */
    719 /*  semantics: when a bit is set, it indicates that the operation is
    720  *   accelerated by hardware.
    721  *  required functions will still work even if the bit is not set.
    722  *  optional functions may not even exist if the flag bit is not set.
    723  */
    724 #define FBINFO_HWACCEL_NONE		0x0000
    725 #define FBINFO_HWACCEL_COPYAREA		0x0100 /* required */
    726 #define FBINFO_HWACCEL_FILLRECT		0x0200 /* required */
    727 #define FBINFO_HWACCEL_IMAGEBLIT	0x0400 /* required */
    728 #define FBINFO_HWACCEL_ROTATE		0x0800 /* optional */
    729 #define FBINFO_HWACCEL_XPAN		0x1000 /* optional */
    730 #define FBINFO_HWACCEL_YPAN		0x2000 /* optional */
    731 #define FBINFO_HWACCEL_YWRAP		0x4000 /* optional */
    732 
    733 #define FBINFO_MISC_USEREVENT          0x10000 /* event request
    734 						  from userspace */
    735 #define FBINFO_MISC_TILEBLITTING       0x20000 /* use tile blitting */
    736 
    737 /* A driver may set this flag to indicate that it does want a set_par to be
    738  * called every time when fbcon_switch is executed. The advantage is that with
    739  * this flag set you can really be sure that set_par is always called before
    740  * any of the functions dependant on the correct hardware state or altering
    741  * that state, even if you are using some broken X releases. The disadvantage
    742  * is that it introduces unwanted delays to every console switch if set_par
    743  * is slow. It is a good idea to try this flag in the drivers initialization
    744  * code whenever there is a bug report related to switching between X and the
    745  * framebuffer console.
    746  */
    747 #define FBINFO_MISC_ALWAYS_SETPAR   0x40000
    748 
    749 struct fb_info {
    750 	int node;
    751 	int flags;
    752 	struct fb_var_screeninfo var;	/* Current var */
    753 	struct fb_fix_screeninfo fix;	/* Current fix */
    754 	struct fb_monspecs monspecs;	/* Current Monitor specs */
    755 	struct work_struct queue;	/* Framebuffer event queue */
    756 	struct fb_pixmap pixmap;	/* Image hardware mapper */
    757 	struct fb_pixmap sprite;	/* Cursor hardware mapper */
    758 	struct fb_cmap cmap;		/* Current cmap */
    759 	struct list_head modelist;      /* mode list */
    760 	struct fb_videomode *mode;	/* current mode */
    761 
    762 #ifdef CONFIG_FB_BACKLIGHT
    763 	/* Lock ordering:
    764 	 * bl_mutex (protects bl_dev and bl_curve)
    765 	 *   bl_dev->sem (backlight class)
    766 	 */
    767 	struct mutex bl_mutex;
    768 
    769 	/* assigned backlight device */
    770 	struct backlight_device *bl_dev;
    771 
    772 	/* Backlight level curve */
    773 	u8 bl_curve[FB_BACKLIGHT_LEVELS];
    774 #endif
    775 
    776 	struct fb_ops *fbops;
    777 	struct device *device;
    778 	struct class_device *class_device; /* sysfs per device attrs */
    779 #ifdef CONFIG_FB_TILEBLITTING
    780 	struct fb_tile_ops *tileops;    /* Tile Blitting */
    781 #endif
    782 	char __iomem *screen_base;	/* Virtual address */
    783 	unsigned long screen_size;	/* Amount of ioremapped VRAM or 0 */
    784 	void *pseudo_palette;		/* Fake palette of 16 colors */
    785 #define FBINFO_STATE_RUNNING	0
    786 #define FBINFO_STATE_SUSPENDED	1
    787 	u32 state;			/* Hardware state i.e suspend */
    788 	void *fbcon_par;                /* fbcon use-only private area */
    789 	/* From here on everything is device dependent */
    790 	void *par;
    791 };
    792 
    793 #ifdef MODULE
    794 #define FBINFO_DEFAULT	FBINFO_MODULE
    795 #else
    796 #define FBINFO_DEFAULT	0
    797 #endif
    798 
    799 // This will go away
    800 #define FBINFO_FLAG_MODULE	FBINFO_MODULE
    801 #define FBINFO_FLAG_DEFAULT	FBINFO_DEFAULT
    802 
    803 /* This will go away
    804  * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags
    805  * when it wants to turn the acceleration engine on.  This is
    806  * really a separate operation, and should be modified via sysfs.
    807  *  But for now, we leave it broken with the following define
    808  */
    809 #define STUPID_ACCELF_TEXT_SHIT
    810 
    811 // This will go away
    812 #if defined(__sparc__)
    813 
    814 /* We map all of our framebuffers such that big-endian accesses
    815  * are what we want, so the following is sufficient.
    816  */
    817 
    818 // This will go away
    819 #define fb_readb sbus_readb
    820 #define fb_readw sbus_readw
    821 #define fb_readl sbus_readl
    822 #define fb_readq sbus_readq
    823 #define fb_writeb sbus_writeb
    824 #define fb_writew sbus_writew
    825 #define fb_writel sbus_writel
    826 #define fb_writeq sbus_writeq
    827 #define fb_memset sbus_memset_io
    828 
    829 #elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || (defined(__sh__) && !defined(__SH5__)) || defined(__powerpc__)
    830 
    831 #define fb_readb __raw_readb
    832 #define fb_readw __raw_readw
    833 #define fb_readl __raw_readl
    834 #define fb_readq __raw_readq
    835 #define fb_writeb __raw_writeb
    836 #define fb_writew __raw_writew
    837 #define fb_writel __raw_writel
    838 #define fb_writeq __raw_writeq
    839 #define fb_memset memset_io
    840 
    841 #else
    842 
    843 #define fb_readb(addr) (*(volatile u8 *) (addr))
    844 #define fb_readw(addr) (*(volatile u16 *) (addr))
    845 #define fb_readl(addr) (*(volatile u32 *) (addr))
    846 #define fb_readq(addr) (*(volatile u64 *) (addr))
    847 #define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
    848 #define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
    849 #define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
    850 #define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b))
    851 #define fb_memset memset
    852 
    853 #endif
    854 
    855 #if defined (__BIG_ENDIAN)
    856 #define FB_LEFT_POS(bpp)          (32 - bpp)
    857 #define FB_SHIFT_HIGH(val, bits)  ((val) >> (bits))
    858 #define FB_SHIFT_LOW(val, bits)   ((val) << (bits))
    859 #else
    860 #define FB_LEFT_POS(bpp)          (0)
    861 #define FB_SHIFT_HIGH(val, bits)  ((val) << (bits))
    862 #define FB_SHIFT_LOW(val, bits)   ((val) >> (bits))
    863 #endif
    864 
    865     /*
    866      *  `Generic' versions of the frame buffer device operations
    867      */
    868 
    869 extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var);
    870 extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var);
    871 extern int fb_blank(struct fb_info *info, int blank);
    872 extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
    873 extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
    874 extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image);
    875 
    876 /* drivers/video/fbmem.c */
    877 extern int register_framebuffer(struct fb_info *fb_info);
    878 extern int unregister_framebuffer(struct fb_info *fb_info);
    879 extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
    880 extern int fb_show_logo(struct fb_info *fb_info, int rotate);
    881 extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);
    882 extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx,
    883 				u32 height, u32 shift_high, u32 shift_low, u32 mod);
    884 extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height);
    885 extern void fb_set_suspend(struct fb_info *info, int state);
    886 extern int fb_get_color_depth(struct fb_var_screeninfo *var,
    887 			      struct fb_fix_screeninfo *fix);
    888 extern int fb_get_options(char *name, char **option);
    889 extern int fb_new_modelist(struct fb_info *info);
    890 
    891 extern struct fb_info *registered_fb[FB_MAX];
    892 extern int num_registered_fb;
    893 
    894 static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch,
    895 					   u8 *src, u32 s_pitch, u32 height)
    896 {
    897 	int i, j;
    898 
    899 	d_pitch -= s_pitch;
    900 
    901 	for (i = height; i--; ) {
    902 		/* s_pitch is a few bytes at the most, memcpy is suboptimal */
    903 		for (j = 0; j < s_pitch; j++)
    904 			*dst++ = *src++;
    905 		dst += d_pitch;
    906 	}
    907 }
    908 
    909 /* drivers/video/fbsysfs.c */
    910 extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);
    911 extern void framebuffer_release(struct fb_info *info);
    912 extern int fb_init_class_device(struct fb_info *fb_info);
    913 extern void fb_cleanup_class_device(struct fb_info *head);
    914 extern void fb_bl_default_curve(struct fb_info *fb_info, u8 off, u8 min, u8 max);
    915 
    916 /* drivers/video/fbmon.c */
    917 #define FB_MAXTIMINGS		0
    918 #define FB_VSYNCTIMINGS		1
    919 #define FB_HSYNCTIMINGS		2
    920 #define FB_DCLKTIMINGS		3
    921 #define FB_IGNOREMON		0x100
    922 
    923 #define FB_MODE_IS_UNKNOWN	0
    924 #define FB_MODE_IS_DETAILED	1
    925 #define FB_MODE_IS_STANDARD	2
    926 #define FB_MODE_IS_VESA		4
    927 #define FB_MODE_IS_CALCULATED	8
    928 #define FB_MODE_IS_FIRST	16
    929 #define FB_MODE_IS_FROM_VAR     32
    930 
    931 extern int fbmon_valid_timings(u_int pixclock, u_int htotal, u_int vtotal,
    932 			       const struct fb_info *fb_info);
    933 extern int fbmon_dpms(const struct fb_info *fb_info);
    934 extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var,
    935 		       struct fb_info *info);
    936 extern int fb_validate_mode(const struct fb_var_screeninfo *var,
    937 			    struct fb_info *info);
    938 extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);
    939 extern const unsigned char *fb_firmware_edid(struct device *device);
    940 extern void fb_edid_to_monspecs(unsigned char *edid,
    941 				struct fb_monspecs *specs);
    942 extern void fb_destroy_modedb(struct fb_videomode *modedb);
    943 extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb);
    944 
    945 /* drivers/video/modedb.c */
    946 #define VESA_MODEDB_SIZE 34
    947 extern void fb_var_to_videomode(struct fb_videomode *mode,
    948 				struct fb_var_screeninfo *var);
    949 extern void fb_videomode_to_var(struct fb_var_screeninfo *var,
    950 				struct fb_videomode *mode);
    951 extern int fb_mode_is_equal(struct fb_videomode *mode1,
    952 			    struct fb_videomode *mode2);
    953 extern int fb_add_videomode(struct fb_videomode *mode, struct list_head *head);
    954 extern void fb_delete_videomode(struct fb_videomode *mode,
    955 				struct list_head *head);
    956 extern struct fb_videomode *fb_match_mode(struct fb_var_screeninfo *var,
    957 					  struct list_head *head);
    958 extern struct fb_videomode *fb_find_best_mode(struct fb_var_screeninfo *var,
    959 					      struct list_head *head);
    960 extern struct fb_videomode *fb_find_nearest_mode(struct fb_videomode *mode,
    961 						 struct list_head *head);
    962 extern void fb_destroy_modelist(struct list_head *head);
    963 extern void fb_videomode_to_modelist(struct fb_videomode *modedb, int num,
    964 				     struct list_head *head);
    965 extern struct fb_videomode *fb_find_best_display(struct fb_monspecs *specs,
    966 						 struct list_head *head);
    967 
    968 /* drivers/video/fbcmap.c */
    969 extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);
    970 extern void fb_dealloc_cmap(struct fb_cmap *cmap);
    971 extern int fb_copy_cmap(struct fb_cmap *from, struct fb_cmap *to);
    972 extern int fb_cmap_to_user(struct fb_cmap *from, struct fb_cmap_user *to);
    973 extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info);
    974 extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info);
    975 extern struct fb_cmap *fb_default_cmap(int len);
    976 extern void fb_invert_cmaps(void);
    977 
    978 struct fb_videomode {
    979 	const char *name;	/* optional */
    980 	u32 refresh;		/* optional */
    981 	u32 xres;
    982 	u32 yres;
    983 	u32 pixclock;
    984 	u32 left_margin;
    985 	u32 right_margin;
    986 	u32 upper_margin;
    987 	u32 lower_margin;
    988 	u32 hsync_len;
    989 	u32 vsync_len;
    990 	u32 sync;
    991 	u32 vmode;
    992 	u32 flag;
    993 };
    994 
    995 extern const struct fb_videomode vesa_modes[];
    996 
    997 struct fb_modelist {
    998 	struct list_head list;
    999 	struct fb_videomode mode;
   1000 };
   1001 
   1002 extern int fb_find_mode(struct fb_var_screeninfo *var,
   1003 			struct fb_info *info, const char *mode_option,
   1004 			const struct fb_videomode *db,
   1005 			unsigned int dbsize,
   1006 			const struct fb_videomode *default_mode,
   1007 			unsigned int default_bpp);
   1008 
   1009 #endif /* __KERNEL__ */
   1010 
   1011 #endif /* _LINUX_FB_H */
   1012