xref: /linux-6.15/include/linux/fb.h (revision 40efcb05)
1 #ifndef _LINUX_FB_H
2 #define _LINUX_FB_H
3 
4 #include <asm/types.h>
5 #include <linux/i2c.h>
6 
7 struct dentry;
8 
9 /* Definitions of frame buffers						*/
10 
11 #define FB_MAJOR		29
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 
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_NEOMAGIC_NM2070 90	/* NeoMagic NM2070              */
124 #define FB_ACCEL_NEOMAGIC_NM2090 91	/* NeoMagic NM2090              */
125 #define FB_ACCEL_NEOMAGIC_NM2093 92	/* NeoMagic NM2093              */
126 #define FB_ACCEL_NEOMAGIC_NM2097 93	/* NeoMagic NM2097              */
127 #define FB_ACCEL_NEOMAGIC_NM2160 94	/* NeoMagic NM2160              */
128 #define FB_ACCEL_NEOMAGIC_NM2200 95	/* NeoMagic NM2200              */
129 #define FB_ACCEL_NEOMAGIC_NM2230 96	/* NeoMagic NM2230              */
130 #define FB_ACCEL_NEOMAGIC_NM2360 97	/* NeoMagic NM2360              */
131 #define FB_ACCEL_NEOMAGIC_NM2380 98	/* NeoMagic NM2380              */
132 
133 #define FB_ACCEL_SAVAGE4        0x80	/* S3 Savage4                   */
134 #define FB_ACCEL_SAVAGE3D       0x81	/* S3 Savage3D                  */
135 #define FB_ACCEL_SAVAGE3D_MV    0x82	/* S3 Savage3D-MV               */
136 #define FB_ACCEL_SAVAGE2000     0x83	/* S3 Savage2000                */
137 #define FB_ACCEL_SAVAGE_MX_MV   0x84	/* S3 Savage/MX-MV              */
138 #define FB_ACCEL_SAVAGE_MX      0x85	/* S3 Savage/MX                 */
139 #define FB_ACCEL_SAVAGE_IX_MV   0x86	/* S3 Savage/IX-MV              */
140 #define FB_ACCEL_SAVAGE_IX      0x87	/* S3 Savage/IX                 */
141 #define FB_ACCEL_PROSAVAGE_PM   0x88	/* S3 ProSavage PM133           */
142 #define FB_ACCEL_PROSAVAGE_KM   0x89	/* S3 ProSavage KM133           */
143 #define FB_ACCEL_S3TWISTER_P    0x8a	/* S3 Twister                   */
144 #define FB_ACCEL_S3TWISTER_K    0x8b	/* S3 TwisterK                  */
145 #define FB_ACCEL_SUPERSAVAGE    0x8c    /* S3 Supersavage               */
146 #define FB_ACCEL_PROSAVAGE_DDR  0x8d	/* S3 ProSavage DDR             */
147 #define FB_ACCEL_PROSAVAGE_DDRK 0x8e	/* S3 ProSavage DDR-K           */
148 
149 struct fb_fix_screeninfo {
150 	char id[16];			/* identification string eg "TT Builtin" */
151 	unsigned long smem_start;	/* Start of frame buffer mem */
152 					/* (physical address) */
153 	__u32 smem_len;			/* Length of frame buffer mem */
154 	__u32 type;			/* see FB_TYPE_*		*/
155 	__u32 type_aux;			/* Interleave for interleaved Planes */
156 	__u32 visual;			/* see FB_VISUAL_*		*/
157 	__u16 xpanstep;			/* zero if no hardware panning  */
158 	__u16 ypanstep;			/* zero if no hardware panning  */
159 	__u16 ywrapstep;		/* zero if no hardware ywrap    */
160 	__u32 line_length;		/* length of a line in bytes    */
161 	unsigned long mmio_start;	/* Start of Memory Mapped I/O   */
162 					/* (physical address) */
163 	__u32 mmio_len;			/* Length of Memory Mapped I/O  */
164 	__u32 accel;			/* Indicate to driver which	*/
165 					/*  specific chip/card we have	*/
166 	__u16 reserved[3];		/* Reserved for future compatibility */
167 };
168 
169 /* Interpretation of offset for color fields: All offsets are from the right,
170  * inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
171  * can use the offset as right argument to <<). A pixel afterwards is a bit
172  * stream and is written to video memory as that unmodified. This implies
173  * big-endian byte order if bits_per_pixel is greater than 8.
174  */
175 struct fb_bitfield {
176 	__u32 offset;			/* beginning of bitfield	*/
177 	__u32 length;			/* length of bitfield		*/
178 	__u32 msb_right;		/* != 0 : Most significant bit is */
179 					/* right */
180 };
181 
182 #define FB_NONSTD_HAM		1	/* Hold-And-Modify (HAM)        */
183 #define FB_NONSTD_REV_PIX_IN_B	2	/* order of pixels in each byte is reversed */
184 
185 #define FB_ACTIVATE_NOW		0	/* set values immediately (or vbl)*/
186 #define FB_ACTIVATE_NXTOPEN	1	/* activate on next open	*/
187 #define FB_ACTIVATE_TEST	2	/* don't set, round up impossible */
188 #define FB_ACTIVATE_MASK       15
189 					/* values			*/
190 #define FB_ACTIVATE_VBL	       16	/* activate values on next vbl  */
191 #define FB_CHANGE_CMAP_VBL     32	/* change colormap on vbl	*/
192 #define FB_ACTIVATE_ALL	       64	/* change all VCs on this fb	*/
193 #define FB_ACTIVATE_FORCE     128	/* force apply even when no change*/
194 #define FB_ACTIVATE_INV_MODE  256       /* invalidate videomode */
195 
196 #define FB_ACCELF_TEXT		1	/* (OBSOLETE) see fb_info.flags and vc_mode */
197 
198 #define FB_SYNC_HOR_HIGH_ACT	1	/* horizontal sync high active	*/
199 #define FB_SYNC_VERT_HIGH_ACT	2	/* vertical sync high active	*/
200 #define FB_SYNC_EXT		4	/* external sync		*/
201 #define FB_SYNC_COMP_HIGH_ACT	8	/* composite sync high active   */
202 #define FB_SYNC_BROADCAST	16	/* broadcast video timings      */
203 					/* vtotal = 144d/288n/576i => PAL  */
204 					/* vtotal = 121d/242n/484i => NTSC */
205 #define FB_SYNC_ON_GREEN	32	/* sync on green */
206 
207 #define FB_VMODE_NONINTERLACED  0	/* non interlaced */
208 #define FB_VMODE_INTERLACED	1	/* interlaced	*/
209 #define FB_VMODE_DOUBLE		2	/* double scan */
210 #define FB_VMODE_ODD_FLD_FIRST	4	/* interlaced: top line first */
211 #define FB_VMODE_MASK		255
212 
213 #define FB_VMODE_YWRAP		256	/* ywrap instead of panning     */
214 #define FB_VMODE_SMOOTH_XPAN	512	/* smooth xpan possible (internally used) */
215 #define FB_VMODE_CONUPDATE	512	/* don't update x/yoffset	*/
216 
217 /*
218  * Display rotation support
219  */
220 #define FB_ROTATE_UR      0
221 #define FB_ROTATE_CW      1
222 #define FB_ROTATE_UD      2
223 #define FB_ROTATE_CCW     3
224 
225 #define PICOS2KHZ(a) (1000000000UL/(a))
226 #define KHZ2PICOS(a) (1000000000UL/(a))
227 
228 struct fb_var_screeninfo {
229 	__u32 xres;			/* visible resolution		*/
230 	__u32 yres;
231 	__u32 xres_virtual;		/* virtual resolution		*/
232 	__u32 yres_virtual;
233 	__u32 xoffset;			/* offset from virtual to visible */
234 	__u32 yoffset;			/* resolution			*/
235 
236 	__u32 bits_per_pixel;		/* guess what			*/
237 	__u32 grayscale;		/* != 0 Graylevels instead of colors */
238 
239 	struct fb_bitfield red;		/* bitfield in fb mem if true color, */
240 	struct fb_bitfield green;	/* else only length is significant */
241 	struct fb_bitfield blue;
242 	struct fb_bitfield transp;	/* transparency			*/
243 
244 	__u32 nonstd;			/* != 0 Non standard pixel format */
245 
246 	__u32 activate;			/* see FB_ACTIVATE_*		*/
247 
248 	__u32 height;			/* height of picture in mm    */
249 	__u32 width;			/* width of picture in mm     */
250 
251 	__u32 accel_flags;		/* (OBSOLETE) see fb_info.flags */
252 
253 	/* Timing: All values in pixclocks, except pixclock (of course) */
254 	__u32 pixclock;			/* pixel clock in ps (pico seconds) */
255 	__u32 left_margin;		/* time from sync to picture	*/
256 	__u32 right_margin;		/* time from picture to sync	*/
257 	__u32 upper_margin;		/* time from sync to picture	*/
258 	__u32 lower_margin;
259 	__u32 hsync_len;		/* length of horizontal sync	*/
260 	__u32 vsync_len;		/* length of vertical sync	*/
261 	__u32 sync;			/* see FB_SYNC_*		*/
262 	__u32 vmode;			/* see FB_VMODE_*		*/
263 	__u32 rotate;			/* angle we rotate counter clockwise */
264 	__u32 reserved[5];		/* Reserved for future compatibility */
265 };
266 
267 struct fb_cmap {
268 	__u32 start;			/* First entry	*/
269 	__u32 len;			/* Number of entries */
270 	__u16 *red;			/* Red values	*/
271 	__u16 *green;
272 	__u16 *blue;
273 	__u16 *transp;			/* transparency, can be NULL */
274 };
275 
276 struct fb_con2fbmap {
277 	__u32 console;
278 	__u32 framebuffer;
279 };
280 
281 /* VESA Blanking Levels */
282 #define VESA_NO_BLANKING        0
283 #define VESA_VSYNC_SUSPEND      1
284 #define VESA_HSYNC_SUSPEND      2
285 #define VESA_POWERDOWN          3
286 
287 
288 enum {
289 	/* screen: unblanked, hsync: on,  vsync: on */
290 	FB_BLANK_UNBLANK       = VESA_NO_BLANKING,
291 
292 	/* screen: blanked,   hsync: on,  vsync: on */
293 	FB_BLANK_NORMAL        = VESA_NO_BLANKING + 1,
294 
295 	/* screen: blanked,   hsync: on,  vsync: off */
296 	FB_BLANK_VSYNC_SUSPEND = VESA_VSYNC_SUSPEND + 1,
297 
298 	/* screen: blanked,   hsync: off, vsync: on */
299 	FB_BLANK_HSYNC_SUSPEND = VESA_HSYNC_SUSPEND + 1,
300 
301 	/* screen: blanked,   hsync: off, vsync: off */
302 	FB_BLANK_POWERDOWN     = VESA_POWERDOWN + 1
303 };
304 
305 #define FB_VBLANK_VBLANKING	0x001	/* currently in a vertical blank */
306 #define FB_VBLANK_HBLANKING	0x002	/* currently in a horizontal blank */
307 #define FB_VBLANK_HAVE_VBLANK	0x004	/* vertical blanks can be detected */
308 #define FB_VBLANK_HAVE_HBLANK	0x008	/* horizontal blanks can be detected */
309 #define FB_VBLANK_HAVE_COUNT	0x010	/* global retrace counter is available */
310 #define FB_VBLANK_HAVE_VCOUNT	0x020	/* the vcount field is valid */
311 #define FB_VBLANK_HAVE_HCOUNT	0x040	/* the hcount field is valid */
312 #define FB_VBLANK_VSYNCING	0x080	/* currently in a vsync */
313 #define FB_VBLANK_HAVE_VSYNC	0x100	/* verical syncs can be detected */
314 
315 struct fb_vblank {
316 	__u32 flags;			/* FB_VBLANK flags */
317 	__u32 count;			/* counter of retraces since boot */
318 	__u32 vcount;			/* current scanline position */
319 	__u32 hcount;			/* current scandot position */
320 	__u32 reserved[4];		/* reserved for future compatibility */
321 };
322 
323 /* Internal HW accel */
324 #define ROP_COPY 0
325 #define ROP_XOR  1
326 
327 struct fb_copyarea {
328 	__u32 dx;
329 	__u32 dy;
330 	__u32 width;
331 	__u32 height;
332 	__u32 sx;
333 	__u32 sy;
334 };
335 
336 struct fb_fillrect {
337 	__u32 dx;	/* screen-relative */
338 	__u32 dy;
339 	__u32 width;
340 	__u32 height;
341 	__u32 color;
342 	__u32 rop;
343 };
344 
345 struct fb_image {
346 	__u32 dx;		/* Where to place image */
347 	__u32 dy;
348 	__u32 width;		/* Size of image */
349 	__u32 height;
350 	__u32 fg_color;		/* Only used when a mono bitmap */
351 	__u32 bg_color;
352 	__u8  depth;		/* Depth of the image */
353 	const char *data;	/* Pointer to image data */
354 	struct fb_cmap cmap;	/* color map info */
355 };
356 
357 /*
358  * hardware cursor control
359  */
360 
361 #define FB_CUR_SETIMAGE 0x01
362 #define FB_CUR_SETPOS   0x02
363 #define FB_CUR_SETHOT   0x04
364 #define FB_CUR_SETCMAP  0x08
365 #define FB_CUR_SETSHAPE 0x10
366 #define FB_CUR_SETSIZE	0x20
367 #define FB_CUR_SETALL   0xFF
368 
369 struct fbcurpos {
370 	__u16 x, y;
371 };
372 
373 struct fb_cursor {
374 	__u16 set;		/* what to set */
375 	__u16 enable;		/* cursor on/off */
376 	__u16 rop;		/* bitop operation */
377 	const char *mask;	/* cursor mask bits */
378 	struct fbcurpos hot;	/* cursor hot spot */
379 	struct fb_image	image;	/* Cursor image */
380 };
381 
382 #ifdef CONFIG_FB_BACKLIGHT
383 /* Settings for the generic backlight code */
384 #define FB_BACKLIGHT_LEVELS	128
385 #define FB_BACKLIGHT_MAX	0xFF
386 #endif
387 
388 #ifdef __KERNEL__
389 
390 #include <linux/fs.h>
391 #include <linux/init.h>
392 #include <linux/device.h>
393 #include <linux/workqueue.h>
394 #include <linux/notifier.h>
395 #include <linux/list.h>
396 #include <linux/backlight.h>
397 #include <asm/io.h>
398 
399 struct vm_area_struct;
400 struct fb_info;
401 struct device;
402 struct file;
403 
404 /* Definitions below are used in the parsed monitor specs */
405 #define FB_DPMS_ACTIVE_OFF	1
406 #define FB_DPMS_SUSPEND		2
407 #define FB_DPMS_STANDBY		4
408 
409 #define FB_DISP_DDI		1
410 #define FB_DISP_ANA_700_300	2
411 #define FB_DISP_ANA_714_286	4
412 #define FB_DISP_ANA_1000_400	8
413 #define FB_DISP_ANA_700_000	16
414 
415 #define FB_DISP_MONO		32
416 #define FB_DISP_RGB		64
417 #define FB_DISP_MULTI		128
418 #define FB_DISP_UNKNOWN		256
419 
420 #define FB_SIGNAL_NONE		0
421 #define FB_SIGNAL_BLANK_BLANK	1
422 #define FB_SIGNAL_SEPARATE	2
423 #define FB_SIGNAL_COMPOSITE	4
424 #define FB_SIGNAL_SYNC_ON_GREEN	8
425 #define FB_SIGNAL_SERRATION_ON	16
426 
427 #define FB_MISC_PRIM_COLOR	1
428 #define FB_MISC_1ST_DETAIL	2	/* First Detailed Timing is preferred */
429 struct fb_chroma {
430 	__u32 redx;	/* in fraction of 1024 */
431 	__u32 greenx;
432 	__u32 bluex;
433 	__u32 whitex;
434 	__u32 redy;
435 	__u32 greeny;
436 	__u32 bluey;
437 	__u32 whitey;
438 };
439 
440 struct fb_monspecs {
441 	struct fb_chroma chroma;
442 	struct fb_videomode *modedb;	/* mode database */
443 	__u8  manufacturer[4];		/* Manufacturer */
444 	__u8  monitor[14];		/* Monitor String */
445 	__u8  serial_no[14];		/* Serial Number */
446 	__u8  ascii[14];		/* ? */
447 	__u32 modedb_len;		/* mode database length */
448 	__u32 model;			/* Monitor Model */
449 	__u32 serial;			/* Serial Number - Integer */
450 	__u32 year;			/* Year manufactured */
451 	__u32 week;			/* Week Manufactured */
452 	__u32 hfmin;			/* hfreq lower limit (Hz) */
453 	__u32 hfmax;			/* hfreq upper limit (Hz) */
454 	__u32 dclkmin;			/* pixelclock lower limit (Hz) */
455 	__u32 dclkmax;			/* pixelclock upper limit (Hz) */
456 	__u16 input;			/* display type - see FB_DISP_* */
457 	__u16 dpms;			/* DPMS support - see FB_DPMS_ */
458 	__u16 signal;			/* Signal Type - see FB_SIGNAL_* */
459 	__u16 vfmin;			/* vfreq lower limit (Hz) */
460 	__u16 vfmax;			/* vfreq upper limit (Hz) */
461 	__u16 gamma;			/* Gamma - in fractions of 100 */
462 	__u16 gtf	: 1;		/* supports GTF */
463 	__u16 misc;			/* Misc flags - see FB_MISC_* */
464 	__u8  version;			/* EDID version... */
465 	__u8  revision;			/* ...and revision */
466 	__u8  max_x;			/* Maximum horizontal size (cm) */
467 	__u8  max_y;			/* Maximum vertical size (cm) */
468 };
469 
470 struct fb_cmap_user {
471 	__u32 start;			/* First entry	*/
472 	__u32 len;			/* Number of entries */
473 	__u16 __user *red;		/* Red values	*/
474 	__u16 __user *green;
475 	__u16 __user *blue;
476 	__u16 __user *transp;		/* transparency, can be NULL */
477 };
478 
479 struct fb_image_user {
480 	__u32 dx;			/* Where to place image */
481 	__u32 dy;
482 	__u32 width;			/* Size of image */
483 	__u32 height;
484 	__u32 fg_color;			/* Only used when a mono bitmap */
485 	__u32 bg_color;
486 	__u8  depth;			/* Depth of the image */
487 	const char __user *data;	/* Pointer to image data */
488 	struct fb_cmap_user cmap;	/* color map info */
489 };
490 
491 struct fb_cursor_user {
492 	__u16 set;			/* what to set */
493 	__u16 enable;			/* cursor on/off */
494 	__u16 rop;			/* bitop operation */
495 	const char __user *mask;	/* cursor mask bits */
496 	struct fbcurpos hot;		/* cursor hot spot */
497 	struct fb_image_user image;	/* Cursor image */
498 };
499 
500 /*
501  * Register/unregister for framebuffer events
502  */
503 
504 /*	The resolution of the passed in fb_info about to change */
505 #define FB_EVENT_MODE_CHANGE		0x01
506 /*	The display on this fb_info is beeing suspended, no access to the
507  *	framebuffer is allowed any more after that call returns
508  */
509 #define FB_EVENT_SUSPEND		0x02
510 /*	The display on this fb_info was resumed, you can restore the display
511  *	if you own it
512  */
513 #define FB_EVENT_RESUME			0x03
514 /*      An entry from the modelist was removed */
515 #define FB_EVENT_MODE_DELETE            0x04
516 /*      A driver registered itself */
517 #define FB_EVENT_FB_REGISTERED          0x05
518 /*      A driver unregistered itself */
519 #define FB_EVENT_FB_UNREGISTERED        0x06
520 /*      CONSOLE-SPECIFIC: get console to framebuffer mapping */
521 #define FB_EVENT_GET_CONSOLE_MAP        0x07
522 /*      CONSOLE-SPECIFIC: set console to framebuffer mapping */
523 #define FB_EVENT_SET_CONSOLE_MAP        0x08
524 /*      A hardware display blank change occured */
525 #define FB_EVENT_BLANK                  0x09
526 /*      Private modelist is to be replaced */
527 #define FB_EVENT_NEW_MODELIST           0x0A
528 /*	The resolution of the passed in fb_info about to change and
529         all vc's should be changed         */
530 #define FB_EVENT_MODE_CHANGE_ALL	0x0B
531 /*	A software display blank change occured */
532 #define FB_EVENT_CONBLANK               0x0C
533 /*      Get drawing requirements        */
534 #define FB_EVENT_GET_REQ                0x0D
535 /*      Unbind from the console if possible */
536 #define FB_EVENT_FB_UNBIND              0x0E
537 
538 struct fb_event {
539 	struct fb_info *info;
540 	void *data;
541 };
542 
543 struct fb_blit_caps {
544 	u32 x;
545 	u32 y;
546 	u32 len;
547 	u32 flags;
548 };
549 
550 extern int fb_register_client(struct notifier_block *nb);
551 extern int fb_unregister_client(struct notifier_block *nb);
552 extern int fb_notifier_call_chain(unsigned long val, void *v);
553 /*
554  * Pixmap structure definition
555  *
556  * The purpose of this structure is to translate data
557  * from the hardware independent format of fbdev to what
558  * format the hardware needs.
559  */
560 
561 #define FB_PIXMAP_DEFAULT 1     /* used internally by fbcon */
562 #define FB_PIXMAP_SYSTEM  2     /* memory is in system RAM  */
563 #define FB_PIXMAP_IO      4     /* memory is iomapped       */
564 #define FB_PIXMAP_SYNC    256   /* set if GPU can DMA       */
565 
566 struct fb_pixmap {
567 	u8  *addr;		/* pointer to memory			*/
568 	u32 size;		/* size of buffer in bytes		*/
569 	u32 offset;		/* current offset to buffer		*/
570 	u32 buf_align;		/* byte alignment of each bitmap	*/
571 	u32 scan_align;		/* alignment per scanline		*/
572 	u32 access_align;	/* alignment per read/write (bits)	*/
573 	u32 flags;		/* see FB_PIXMAP_*			*/
574 	u32 blit_x;             /* supported bit block dimensions (1-32)*/
575 	u32 blit_y;             /* Format: blit_x = 1 << (width - 1)    */
576 	                        /*         blit_y = 1 << (height - 1)   */
577 	                        /* if 0, will be set to 0xffffffff (all)*/
578 	/* access methods */
579 	void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size);
580 	void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size);
581 };
582 
583 #ifdef CONFIG_FB_DEFERRED_IO
584 struct fb_deferred_io {
585 	/* delay between mkwrite and deferred handler */
586 	unsigned long delay;
587 	struct mutex lock; /* mutex that protects the page list */
588 	struct list_head pagelist; /* list of touched pages */
589 	/* callback */
590 	void (*deferred_io)(struct fb_info *info, struct list_head *pagelist);
591 };
592 #endif
593 
594 /*
595  * Frame buffer operations
596  *
597  * LOCKING NOTE: those functions must _ALL_ be called with the console
598  * semaphore held, this is the only suitable locking mechanism we have
599  * in 2.6. Some may be called at interrupt time at this point though.
600  */
601 
602 struct fb_ops {
603 	/* open/release and usage marking */
604 	struct module *owner;
605 	int (*fb_open)(struct fb_info *info, int user);
606 	int (*fb_release)(struct fb_info *info, int user);
607 
608 	/* For framebuffers with strange non linear layouts or that do not
609 	 * work with normal memory mapped access
610 	 */
611 	ssize_t (*fb_read)(struct fb_info *info, char __user *buf,
612 			   size_t count, loff_t *ppos);
613 	ssize_t (*fb_write)(struct fb_info *info, const char __user *buf,
614 			    size_t count, loff_t *ppos);
615 
616 	/* checks var and eventually tweaks it to something supported,
617 	 * DO NOT MODIFY PAR */
618 	int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
619 
620 	/* set the video mode according to info->var */
621 	int (*fb_set_par)(struct fb_info *info);
622 
623 	/* set color register */
624 	int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green,
625 			    unsigned blue, unsigned transp, struct fb_info *info);
626 
627 	/* set color registers in batch */
628 	int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info);
629 
630 	/* blank display */
631 	int (*fb_blank)(int blank, struct fb_info *info);
632 
633 	/* pan display */
634 	int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info);
635 
636 	/* Draws a rectangle */
637 	void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);
638 	/* Copy data from area to another */
639 	void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);
640 	/* Draws a image to the display */
641 	void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
642 
643 	/* Draws cursor */
644 	int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
645 
646 	/* Rotates the display */
647 	void (*fb_rotate)(struct fb_info *info, int angle);
648 
649 	/* wait for blit idle, optional */
650 	int (*fb_sync)(struct fb_info *info);
651 
652 	/* perform fb specific ioctl (optional) */
653 	int (*fb_ioctl)(struct fb_info *info, unsigned int cmd,
654 			unsigned long arg);
655 
656 	/* Handle 32bit compat ioctl (optional) */
657 	int (*fb_compat_ioctl)(struct fb_info *info, unsigned cmd,
658 			unsigned long arg);
659 
660 	/* perform fb specific mmap */
661 	int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma);
662 
663 	/* save current hardware state */
664 	void (*fb_save_state)(struct fb_info *info);
665 
666 	/* restore saved state */
667 	void (*fb_restore_state)(struct fb_info *info);
668 
669 	/* get capability given var */
670 	void (*fb_get_caps)(struct fb_info *info, struct fb_blit_caps *caps,
671 			    struct fb_var_screeninfo *var);
672 };
673 
674 #ifdef CONFIG_FB_TILEBLITTING
675 #define FB_TILE_CURSOR_NONE        0
676 #define FB_TILE_CURSOR_UNDERLINE   1
677 #define FB_TILE_CURSOR_LOWER_THIRD 2
678 #define FB_TILE_CURSOR_LOWER_HALF  3
679 #define FB_TILE_CURSOR_TWO_THIRDS  4
680 #define FB_TILE_CURSOR_BLOCK       5
681 
682 struct fb_tilemap {
683 	__u32 width;                /* width of each tile in pixels */
684 	__u32 height;               /* height of each tile in scanlines */
685 	__u32 depth;                /* color depth of each tile */
686 	__u32 length;               /* number of tiles in the map */
687 	const __u8 *data;           /* actual tile map: a bitmap array, packed
688 				       to the nearest byte */
689 };
690 
691 struct fb_tilerect {
692 	__u32 sx;                   /* origin in the x-axis */
693 	__u32 sy;                   /* origin in the y-axis */
694 	__u32 width;                /* number of tiles in the x-axis */
695 	__u32 height;               /* number of tiles in the y-axis */
696 	__u32 index;                /* what tile to use: index to tile map */
697 	__u32 fg;                   /* foreground color */
698 	__u32 bg;                   /* background color */
699 	__u32 rop;                  /* raster operation */
700 };
701 
702 struct fb_tilearea {
703 	__u32 sx;                   /* source origin in the x-axis */
704 	__u32 sy;                   /* source origin in the y-axis */
705 	__u32 dx;                   /* destination origin in the x-axis */
706 	__u32 dy;                   /* destination origin in the y-axis */
707 	__u32 width;                /* number of tiles in the x-axis */
708 	__u32 height;               /* number of tiles in the y-axis */
709 };
710 
711 struct fb_tileblit {
712 	__u32 sx;                   /* origin in the x-axis */
713 	__u32 sy;                   /* origin in the y-axis */
714 	__u32 width;                /* number of tiles in the x-axis */
715 	__u32 height;               /* number of tiles in the y-axis */
716 	__u32 fg;                   /* foreground color */
717 	__u32 bg;                   /* background color */
718 	__u32 length;               /* number of tiles to draw */
719 	__u32 *indices;             /* array of indices to tile map */
720 };
721 
722 struct fb_tilecursor {
723 	__u32 sx;                   /* cursor position in the x-axis */
724 	__u32 sy;                   /* cursor position in the y-axis */
725 	__u32 mode;                 /* 0 = erase, 1 = draw */
726 	__u32 shape;                /* see FB_TILE_CURSOR_* */
727 	__u32 fg;                   /* foreground color */
728 	__u32 bg;                   /* background color */
729 };
730 
731 struct fb_tile_ops {
732 	/* set tile characteristics */
733 	void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map);
734 
735 	/* all dimensions from hereon are in terms of tiles */
736 
737 	/* move a rectangular region of tiles from one area to another*/
738 	void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area);
739 	/* fill a rectangular region with a tile */
740 	void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect);
741 	/* copy an array of tiles */
742 	void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit);
743 	/* cursor */
744 	void (*fb_tilecursor)(struct fb_info *info,
745 			      struct fb_tilecursor *cursor);
746 	/* get maximum length of the tile map */
747 	int (*fb_get_tilemax)(struct fb_info *info);
748 };
749 #endif /* CONFIG_FB_TILEBLITTING */
750 
751 /* FBINFO_* = fb_info.flags bit flags */
752 #define FBINFO_MODULE		0x0001	/* Low-level driver is a module */
753 #define FBINFO_HWACCEL_DISABLED	0x0002
754 	/* When FBINFO_HWACCEL_DISABLED is set:
755 	 *  Hardware acceleration is turned off.  Software implementations
756 	 *  of required functions (copyarea(), fillrect(), and imageblit())
757 	 *  takes over; acceleration engine should be in a quiescent state */
758 
759 /* hints */
760 #define FBINFO_PARTIAL_PAN_OK	0x0040 /* otw use pan only for double-buffering */
761 #define FBINFO_READS_FAST	0x0080 /* soft-copy faster than rendering */
762 
763 /* hardware supported ops */
764 /*  semantics: when a bit is set, it indicates that the operation is
765  *   accelerated by hardware.
766  *  required functions will still work even if the bit is not set.
767  *  optional functions may not even exist if the flag bit is not set.
768  */
769 #define FBINFO_HWACCEL_NONE		0x0000
770 #define FBINFO_HWACCEL_COPYAREA		0x0100 /* required */
771 #define FBINFO_HWACCEL_FILLRECT		0x0200 /* required */
772 #define FBINFO_HWACCEL_IMAGEBLIT	0x0400 /* required */
773 #define FBINFO_HWACCEL_ROTATE		0x0800 /* optional */
774 #define FBINFO_HWACCEL_XPAN		0x1000 /* optional */
775 #define FBINFO_HWACCEL_YPAN		0x2000 /* optional */
776 #define FBINFO_HWACCEL_YWRAP		0x4000 /* optional */
777 
778 #define FBINFO_MISC_USEREVENT          0x10000 /* event request
779 						  from userspace */
780 #define FBINFO_MISC_TILEBLITTING       0x20000 /* use tile blitting */
781 
782 /* A driver may set this flag to indicate that it does want a set_par to be
783  * called every time when fbcon_switch is executed. The advantage is that with
784  * this flag set you can really be sure that set_par is always called before
785  * any of the functions dependant on the correct hardware state or altering
786  * that state, even if you are using some broken X releases. The disadvantage
787  * is that it introduces unwanted delays to every console switch if set_par
788  * is slow. It is a good idea to try this flag in the drivers initialization
789  * code whenever there is a bug report related to switching between X and the
790  * framebuffer console.
791  */
792 #define FBINFO_MISC_ALWAYS_SETPAR   0x40000
793 
794 struct fb_info {
795 	int node;
796 	int flags;
797 	struct fb_var_screeninfo var;	/* Current var */
798 	struct fb_fix_screeninfo fix;	/* Current fix */
799 	struct fb_monspecs monspecs;	/* Current Monitor specs */
800 	struct work_struct queue;	/* Framebuffer event queue */
801 	struct fb_pixmap pixmap;	/* Image hardware mapper */
802 	struct fb_pixmap sprite;	/* Cursor hardware mapper */
803 	struct fb_cmap cmap;		/* Current cmap */
804 	struct list_head modelist;      /* mode list */
805 	struct fb_videomode *mode;	/* current mode */
806 
807 #ifdef CONFIG_FB_BACKLIGHT
808 	/* assigned backlight device */
809 	/* set before framebuffer registration,
810 	   remove after unregister */
811 	struct backlight_device *bl_dev;
812 
813 	/* Backlight level curve */
814 	struct mutex bl_curve_mutex;
815 	u8 bl_curve[FB_BACKLIGHT_LEVELS];
816 #endif
817 #ifdef CONFIG_FB_DEFERRED_IO
818 	struct delayed_work deferred_work;
819 	struct fb_deferred_io *fbdefio;
820 #endif
821 
822 	struct fb_ops *fbops;
823 	struct device *device;		/* This is the parent */
824 	struct device *dev;		/* This is this fb device */
825 	int class_flag;                    /* private sysfs flags */
826 #ifdef CONFIG_FB_TILEBLITTING
827 	struct fb_tile_ops *tileops;    /* Tile Blitting */
828 #endif
829 	char __iomem *screen_base;	/* Virtual address */
830 	unsigned long screen_size;	/* Amount of ioremapped VRAM or 0 */
831 	void *pseudo_palette;		/* Fake palette of 16 colors */
832 #define FBINFO_STATE_RUNNING	0
833 #define FBINFO_STATE_SUSPENDED	1
834 	u32 state;			/* Hardware state i.e suspend */
835 	void *fbcon_par;                /* fbcon use-only private area */
836 	/* From here on everything is device dependent */
837 	void *par;
838 };
839 
840 #ifdef MODULE
841 #define FBINFO_DEFAULT	FBINFO_MODULE
842 #else
843 #define FBINFO_DEFAULT	0
844 #endif
845 
846 // This will go away
847 #define FBINFO_FLAG_MODULE	FBINFO_MODULE
848 #define FBINFO_FLAG_DEFAULT	FBINFO_DEFAULT
849 
850 /* This will go away
851  * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags
852  * when it wants to turn the acceleration engine on.  This is
853  * really a separate operation, and should be modified via sysfs.
854  *  But for now, we leave it broken with the following define
855  */
856 #define STUPID_ACCELF_TEXT_SHIT
857 
858 // This will go away
859 #if defined(__sparc__)
860 
861 /* We map all of our framebuffers such that big-endian accesses
862  * are what we want, so the following is sufficient.
863  */
864 
865 // This will go away
866 #define fb_readb sbus_readb
867 #define fb_readw sbus_readw
868 #define fb_readl sbus_readl
869 #define fb_readq sbus_readq
870 #define fb_writeb sbus_writeb
871 #define fb_writew sbus_writew
872 #define fb_writel sbus_writel
873 #define fb_writeq sbus_writeq
874 #define fb_memset sbus_memset_io
875 
876 #elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || (defined(__sh__) && !defined(__SH5__)) || defined(__powerpc__) || defined(__avr32__)
877 
878 #define fb_readb __raw_readb
879 #define fb_readw __raw_readw
880 #define fb_readl __raw_readl
881 #define fb_readq __raw_readq
882 #define fb_writeb __raw_writeb
883 #define fb_writew __raw_writew
884 #define fb_writel __raw_writel
885 #define fb_writeq __raw_writeq
886 #define fb_memset memset_io
887 
888 #else
889 
890 #define fb_readb(addr) (*(volatile u8 *) (addr))
891 #define fb_readw(addr) (*(volatile u16 *) (addr))
892 #define fb_readl(addr) (*(volatile u32 *) (addr))
893 #define fb_readq(addr) (*(volatile u64 *) (addr))
894 #define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
895 #define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
896 #define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
897 #define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b))
898 #define fb_memset memset
899 
900 #endif
901 
902 #if defined (__BIG_ENDIAN)
903 #define FB_LEFT_POS(bpp)          (32 - bpp)
904 #define FB_SHIFT_HIGH(val, bits)  ((val) >> (bits))
905 #define FB_SHIFT_LOW(val, bits)   ((val) << (bits))
906 #else
907 #define FB_LEFT_POS(bpp)          (0)
908 #define FB_SHIFT_HIGH(val, bits)  ((val) << (bits))
909 #define FB_SHIFT_LOW(val, bits)   ((val) >> (bits))
910 #endif
911 
912     /*
913      *  `Generic' versions of the frame buffer device operations
914      */
915 
916 extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var);
917 extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var);
918 extern int fb_blank(struct fb_info *info, int blank);
919 extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
920 extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
921 extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image);
922 /*
923  * Drawing operations where framebuffer is in system RAM
924  */
925 extern void sys_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
926 extern void sys_copyarea(struct fb_info *info, const struct fb_copyarea *area);
927 extern void sys_imageblit(struct fb_info *info, const struct fb_image *image);
928 extern ssize_t fb_sys_read(struct fb_info *info, char __user *buf,
929 			   size_t count, loff_t *ppos);
930 extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
931 			    size_t count, loff_t *ppos);
932 
933 /* drivers/video/fbmem.c */
934 extern int register_framebuffer(struct fb_info *fb_info);
935 extern int unregister_framebuffer(struct fb_info *fb_info);
936 extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
937 extern int fb_show_logo(struct fb_info *fb_info, int rotate);
938 extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);
939 extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx,
940 				u32 height, u32 shift_high, u32 shift_low, u32 mod);
941 extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height);
942 extern void fb_set_suspend(struct fb_info *info, int state);
943 extern int fb_get_color_depth(struct fb_var_screeninfo *var,
944 			      struct fb_fix_screeninfo *fix);
945 extern int fb_get_options(char *name, char **option);
946 extern int fb_new_modelist(struct fb_info *info);
947 
948 extern struct fb_info *registered_fb[FB_MAX];
949 extern int num_registered_fb;
950 extern struct class *fb_class;
951 
952 static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch,
953 					   u8 *src, u32 s_pitch, u32 height)
954 {
955 	int i, j;
956 
957 	d_pitch -= s_pitch;
958 
959 	for (i = height; i--; ) {
960 		/* s_pitch is a few bytes at the most, memcpy is suboptimal */
961 		for (j = 0; j < s_pitch; j++)
962 			*dst++ = *src++;
963 		dst += d_pitch;
964 	}
965 }
966 
967 /* drivers/video/fb_defio.c */
968 extern void fb_deferred_io_init(struct fb_info *info);
969 extern void fb_deferred_io_cleanup(struct fb_info *info);
970 extern int fb_deferred_io_fsync(struct file *file, struct dentry *dentry,
971 				int datasync);
972 
973 /* drivers/video/fbsysfs.c */
974 extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);
975 extern void framebuffer_release(struct fb_info *info);
976 extern int fb_init_device(struct fb_info *fb_info);
977 extern void fb_cleanup_device(struct fb_info *head);
978 extern void fb_bl_default_curve(struct fb_info *fb_info, u8 off, u8 min, u8 max);
979 
980 /* drivers/video/fbmon.c */
981 #define FB_MAXTIMINGS		0
982 #define FB_VSYNCTIMINGS		1
983 #define FB_HSYNCTIMINGS		2
984 #define FB_DCLKTIMINGS		3
985 #define FB_IGNOREMON		0x100
986 
987 #define FB_MODE_IS_UNKNOWN	0
988 #define FB_MODE_IS_DETAILED	1
989 #define FB_MODE_IS_STANDARD	2
990 #define FB_MODE_IS_VESA		4
991 #define FB_MODE_IS_CALCULATED	8
992 #define FB_MODE_IS_FIRST	16
993 #define FB_MODE_IS_FROM_VAR     32
994 
995 extern int fbmon_dpms(const struct fb_info *fb_info);
996 extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var,
997 		       struct fb_info *info);
998 extern int fb_validate_mode(const struct fb_var_screeninfo *var,
999 			    struct fb_info *info);
1000 extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);
1001 extern const unsigned char *fb_firmware_edid(struct device *device);
1002 extern void fb_edid_to_monspecs(unsigned char *edid,
1003 				struct fb_monspecs *specs);
1004 extern void fb_destroy_modedb(struct fb_videomode *modedb);
1005 extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb);
1006 extern unsigned char *fb_ddc_read(struct i2c_adapter *adapter);
1007 
1008 /* drivers/video/modedb.c */
1009 #define VESA_MODEDB_SIZE 34
1010 extern void fb_var_to_videomode(struct fb_videomode *mode,
1011 				const struct fb_var_screeninfo *var);
1012 extern void fb_videomode_to_var(struct fb_var_screeninfo *var,
1013 				const struct fb_videomode *mode);
1014 extern int fb_mode_is_equal(const struct fb_videomode *mode1,
1015 			    const struct fb_videomode *mode2);
1016 extern int fb_add_videomode(const struct fb_videomode *mode,
1017 			    struct list_head *head);
1018 extern void fb_delete_videomode(const struct fb_videomode *mode,
1019 				struct list_head *head);
1020 extern const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var,
1021 						struct list_head *head);
1022 extern const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var,
1023 						    struct list_head *head);
1024 extern const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode,
1025 						       struct list_head *head);
1026 extern void fb_destroy_modelist(struct list_head *head);
1027 extern void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num,
1028 				     struct list_head *head);
1029 extern const struct fb_videomode *fb_find_best_display(const struct fb_monspecs *specs,
1030 						       struct list_head *head);
1031 
1032 /* drivers/video/fbcmap.c */
1033 extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);
1034 extern void fb_dealloc_cmap(struct fb_cmap *cmap);
1035 extern int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to);
1036 extern int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to);
1037 extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info);
1038 extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info);
1039 extern const struct fb_cmap *fb_default_cmap(int len);
1040 extern void fb_invert_cmaps(void);
1041 
1042 struct fb_videomode {
1043 	const char *name;	/* optional */
1044 	u32 refresh;		/* optional */
1045 	u32 xres;
1046 	u32 yres;
1047 	u32 pixclock;
1048 	u32 left_margin;
1049 	u32 right_margin;
1050 	u32 upper_margin;
1051 	u32 lower_margin;
1052 	u32 hsync_len;
1053 	u32 vsync_len;
1054 	u32 sync;
1055 	u32 vmode;
1056 	u32 flag;
1057 };
1058 
1059 extern const char *fb_mode_option;
1060 extern const struct fb_videomode vesa_modes[];
1061 
1062 struct fb_modelist {
1063 	struct list_head list;
1064 	struct fb_videomode mode;
1065 };
1066 
1067 extern int fb_find_mode(struct fb_var_screeninfo *var,
1068 			struct fb_info *info, const char *mode_option,
1069 			const struct fb_videomode *db,
1070 			unsigned int dbsize,
1071 			const struct fb_videomode *default_mode,
1072 			unsigned int default_bpp);
1073 
1074 #endif /* __KERNEL__ */
1075 
1076 #endif /* _LINUX_FB_H */
1077