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nvidiafb: prevent triggering of softlockup
[net-next-2.6.git] / include / linux / fb.h
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1da177e4
LT		 1#ifndef _LINUX_FB_H
2#define _LINUX_FB_H
3
4#include <asm/types.h>
fc5891c8 5#include <linux/i2c.h>
1da177e4 6
5e841b88
PM		 7struct dentry;
8
1da177e4
LT		 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 */
a268422d
OZ		 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 */
1da177e4
LT		 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 */
544393fe
TW		 120#define FB_ACCEL_XGI_VOLARI_V 47 /* XGI Volari V3XT, V5, V8 */
121#define FB_ACCEL_XGI_VOLARI_Z 48 /* XGI Volari Z7 */
1da177e4
LT		 122#define FB_ACCEL_NEOMAGIC_NM2070 90 /* NeoMagic NM2070 */
123#define FB_ACCEL_NEOMAGIC_NM2090 91 /* NeoMagic NM2090 */
124#define FB_ACCEL_NEOMAGIC_NM2093 92 /* NeoMagic NM2093 */
125#define FB_ACCEL_NEOMAGIC_NM2097 93 /* NeoMagic NM2097 */
126#define FB_ACCEL_NEOMAGIC_NM2160 94 /* NeoMagic NM2160 */
127#define FB_ACCEL_NEOMAGIC_NM2200 95 /* NeoMagic NM2200 */
128#define FB_ACCEL_NEOMAGIC_NM2230 96 /* NeoMagic NM2230 */
129#define FB_ACCEL_NEOMAGIC_NM2360 97 /* NeoMagic NM2360 */
130#define FB_ACCEL_NEOMAGIC_NM2380 98 /* NeoMagic NM2380 */
131
132#define FB_ACCEL_SAVAGE4 0x80 /* S3 Savage4 */
133#define FB_ACCEL_SAVAGE3D 0x81 /* S3 Savage3D */
134#define FB_ACCEL_SAVAGE3D_MV 0x82 /* S3 Savage3D-MV */
135#define FB_ACCEL_SAVAGE2000 0x83 /* S3 Savage2000 */
136#define FB_ACCEL_SAVAGE_MX_MV 0x84 /* S3 Savage/MX-MV */
137#define FB_ACCEL_SAVAGE_MX 0x85 /* S3 Savage/MX */
138#define FB_ACCEL_SAVAGE_IX_MV 0x86 /* S3 Savage/IX-MV */
139#define FB_ACCEL_SAVAGE_IX 0x87 /* S3 Savage/IX */
140#define FB_ACCEL_PROSAVAGE_PM 0x88 /* S3 ProSavage PM133 */
141#define FB_ACCEL_PROSAVAGE_KM 0x89 /* S3 ProSavage KM133 */
142#define FB_ACCEL_S3TWISTER_P 0x8a /* S3 Twister */
143#define FB_ACCEL_S3TWISTER_K 0x8b /* S3 TwisterK */
144#define FB_ACCEL_SUPERSAVAGE 0x8c /* S3 Supersavage */
145#define FB_ACCEL_PROSAVAGE_DDR 0x8d /* S3 ProSavage DDR */
146#define FB_ACCEL_PROSAVAGE_DDRK 0x8e /* S3 ProSavage DDR-K */
147
148struct fb_fix_screeninfo {
149 char id[16]; /* identification string eg "TT Builtin" */
150 unsigned long smem_start; /* Start of frame buffer mem */
151 /* (physical address) */
152 __u32 smem_len; /* Length of frame buffer mem */
153 __u32 type; /* see FB_TYPE_* */
154 __u32 type_aux; /* Interleave for interleaved Planes */
155 __u32 visual; /* see FB_VISUAL_* */
156 __u16 xpanstep; /* zero if no hardware panning */
157 __u16 ypanstep; /* zero if no hardware panning */
158 __u16 ywrapstep; /* zero if no hardware ywrap */
159 __u32 line_length; /* length of a line in bytes */
160 unsigned long mmio_start; /* Start of Memory Mapped I/O */
161 /* (physical address) */
162 __u32 mmio_len; /* Length of Memory Mapped I/O */
163 __u32 accel; /* Indicate to driver which */
164 /* specific chip/card we have */
165 __u16 reserved[3]; /* Reserved for future compatibility */
166};
167
168/* Interpretation of offset for color fields: All offsets are from the right,
169 * inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
170 * can use the offset as right argument to <<). A pixel afterwards is a bit
171 * stream and is written to video memory as that unmodified. This implies
172 * big-endian byte order if bits_per_pixel is greater than 8.
173 */
174struct fb_bitfield {
175 __u32 offset; /* beginning of bitfield */
176 __u32 length; /* length of bitfield */
177 __u32 msb_right; /* != 0 : Most significant bit is */
178 /* right */
179};
180
181#define FB_NONSTD_HAM 1 /* Hold-And-Modify (HAM) */
182
183#define FB_ACTIVATE_NOW 0 /* set values immediately (or vbl)*/
184#define FB_ACTIVATE_NXTOPEN 1 /* activate on next open */
185#define FB_ACTIVATE_TEST 2 /* don't set, round up impossible */
186#define FB_ACTIVATE_MASK 15
187 /* values */
188#define FB_ACTIVATE_VBL 16 /* activate values on next vbl */
189#define FB_CHANGE_CMAP_VBL 32 /* change colormap on vbl */
190#define FB_ACTIVATE_ALL 64 /* change all VCs on this fb */
191#define FB_ACTIVATE_FORCE 128 /* force apply even when no change*/
192#define FB_ACTIVATE_INV_MODE 256 /* invalidate videomode */
193
194#define FB_ACCELF_TEXT 1 /* (OBSOLETE) see fb_info.flags and vc_mode */
195
196#define FB_SYNC_HOR_HIGH_ACT 1 /* horizontal sync high active */
197#define FB_SYNC_VERT_HIGH_ACT 2 /* vertical sync high active */
198#define FB_SYNC_EXT 4 /* external sync */
199#define FB_SYNC_COMP_HIGH_ACT 8 /* composite sync high active */
200#define FB_SYNC_BROADCAST 16 /* broadcast video timings */
201 /* vtotal = 144d/288n/576i => PAL */
202 /* vtotal = 121d/242n/484i => NTSC */
203#define FB_SYNC_ON_GREEN 32 /* sync on green */
204
205#define FB_VMODE_NONINTERLACED 0 /* non interlaced */
206#define FB_VMODE_INTERLACED 1 /* interlaced */
207#define FB_VMODE_DOUBLE 2 /* double scan */
208#define FB_VMODE_MASK 255
209
210#define FB_VMODE_YWRAP 256 /* ywrap instead of panning */
211#define FB_VMODE_SMOOTH_XPAN 512 /* smooth xpan possible (internally used) */
212#define FB_VMODE_CONUPDATE 512 /* don't update x/yoffset */
213
e4fc2761
AD		 214/*
215 * Display rotation support
216 */
217#define FB_ROTATE_UR 0
218#define FB_ROTATE_CW 1
219#define FB_ROTATE_UD 2
220#define FB_ROTATE_CCW 3
221
1da177e4
LT		 222#define PICOS2KHZ(a) (1000000000UL/(a))
223#define KHZ2PICOS(a) (1000000000UL/(a))
224
225struct fb_var_screeninfo {
226 __u32 xres; /* visible resolution */
227 __u32 yres;
228 __u32 xres_virtual; /* virtual resolution */
229 __u32 yres_virtual;
230 __u32 xoffset; /* offset from virtual to visible */
231 __u32 yoffset; /* resolution */
232
233 __u32 bits_per_pixel; /* guess what */
234 __u32 grayscale; /* != 0 Graylevels instead of colors */
235
236 struct fb_bitfield red; /* bitfield in fb mem if true color, */
237 struct fb_bitfield green; /* else only length is significant */
238 struct fb_bitfield blue;
239 struct fb_bitfield transp; /* transparency */
240
241 __u32 nonstd; /* != 0 Non standard pixel format */
242
243 __u32 activate; /* see FB_ACTIVATE_* */
244
245 __u32 height; /* height of picture in mm */
246 __u32 width; /* width of picture in mm */
247
248 __u32 accel_flags; /* (OBSOLETE) see fb_info.flags */
249
250 /* Timing: All values in pixclocks, except pixclock (of course) */
251 __u32 pixclock; /* pixel clock in ps (pico seconds) */
252 __u32 left_margin; /* time from sync to picture */
253 __u32 right_margin; /* time from picture to sync */
254 __u32 upper_margin; /* time from sync to picture */
255 __u32 lower_margin;
256 __u32 hsync_len; /* length of horizontal sync */
257 __u32 vsync_len; /* length of vertical sync */
258 __u32 sync; /* see FB_SYNC_* */
259 __u32 vmode; /* see FB_VMODE_* */
260 __u32 rotate; /* angle we rotate counter clockwise */
261 __u32 reserved[5]; /* Reserved for future compatibility */
262};
263
264struct fb_cmap {
265 __u32 start; /* First entry */
266 __u32 len; /* Number of entries */
267 __u16 *red; /* Red values */
268 __u16 *green;
269 __u16 *blue;
270 __u16 *transp; /* transparency, can be NULL */
271};
272
273struct fb_con2fbmap {
274 __u32 console;
275 __u32 framebuffer;
276};
277
278/* VESA Blanking Levels */
279#define VESA_NO_BLANKING 0
280#define VESA_VSYNC_SUSPEND 1
281#define VESA_HSYNC_SUSPEND 2
282#define VESA_POWERDOWN 3
283
284
285enum {
286 /* screen: unblanked, hsync: on, vsync: on */
287 FB_BLANK_UNBLANK = VESA_NO_BLANKING,
288
289 /* screen: blanked, hsync: on, vsync: on */
290 FB_BLANK_NORMAL = VESA_NO_BLANKING + 1,
291
292 /* screen: blanked, hsync: on, vsync: off */
293 FB_BLANK_VSYNC_SUSPEND = VESA_VSYNC_SUSPEND + 1,
294
295 /* screen: blanked, hsync: off, vsync: on */
296 FB_BLANK_HSYNC_SUSPEND = VESA_HSYNC_SUSPEND + 1,
297
298 /* screen: blanked, hsync: off, vsync: off */
299 FB_BLANK_POWERDOWN = VESA_POWERDOWN + 1
300};
301
302#define FB_VBLANK_VBLANKING 0x001 /* currently in a vertical blank */
303#define FB_VBLANK_HBLANKING 0x002 /* currently in a horizontal blank */
304#define FB_VBLANK_HAVE_VBLANK 0x004 /* vertical blanks can be detected */
305#define FB_VBLANK_HAVE_HBLANK 0x008 /* horizontal blanks can be detected */
306#define FB_VBLANK_HAVE_COUNT 0x010 /* global retrace counter is available */
307#define FB_VBLANK_HAVE_VCOUNT 0x020 /* the vcount field is valid */
308#define FB_VBLANK_HAVE_HCOUNT 0x040 /* the hcount field is valid */
309#define FB_VBLANK_VSYNCING 0x080 /* currently in a vsync */
310#define FB_VBLANK_HAVE_VSYNC 0x100 /* verical syncs can be detected */
311
312struct fb_vblank {
313 __u32 flags; /* FB_VBLANK flags */
314 __u32 count; /* counter of retraces since boot */
315 __u32 vcount; /* current scanline position */
316 __u32 hcount; /* current scandot position */
317 __u32 reserved[4]; /* reserved for future compatibility */
318};
319
320/* Internal HW accel */
321#define ROP_COPY 0
322#define ROP_XOR 1
323
324struct fb_copyarea {
325 __u32 dx;
326 __u32 dy;
327 __u32 width;
328 __u32 height;
329 __u32 sx;
330 __u32 sy;
331};
332
333struct fb_fillrect {
334 __u32 dx; /* screen-relative */
335 __u32 dy;
336 __u32 width;
337 __u32 height;
338 __u32 color;
339 __u32 rop;
340};
341
342struct fb_image {
343 __u32 dx; /* Where to place image */
344 __u32 dy;
345 __u32 width; /* Size of image */
346 __u32 height;
347 __u32 fg_color; /* Only used when a mono bitmap */
348 __u32 bg_color;
349 __u8 depth; /* Depth of the image */
350 const char *data; /* Pointer to image data */
351 struct fb_cmap cmap; /* color map info */
352};
353
354/*
355 * hardware cursor control
356 */
357
358#define FB_CUR_SETIMAGE 0x01
359#define FB_CUR_SETPOS 0x02
360#define FB_CUR_SETHOT 0x04
361#define FB_CUR_SETCMAP 0x08
362#define FB_CUR_SETSHAPE 0x10
363#define FB_CUR_SETSIZE 0x20
364#define FB_CUR_SETALL 0xFF
365
366struct fbcurpos {
367 __u16 x, y;
368};
369
370struct fb_cursor {
371 __u16 set; /* what to set */
372 __u16 enable; /* cursor on/off */
373 __u16 rop; /* bitop operation */
374 const char *mask; /* cursor mask bits */
375 struct fbcurpos hot; /* cursor hot spot */
376 struct fb_image image; /* Cursor image */
377};
378
5474c120
MH		 379#ifdef CONFIG_FB_BACKLIGHT
380/* Settings for the generic backlight code */
381#define FB_BACKLIGHT_LEVELS 128
382#define FB_BACKLIGHT_MAX 0xFF
383#endif
384
1da177e4
LT		 385#ifdef __KERNEL__
386
387#include <linux/fs.h>
388#include <linux/init.h>
1da177e4
LT		 389#include <linux/device.h>
390#include <linux/workqueue.h>
1da177e4
LT		 391#include <linux/notifier.h>
392#include <linux/list.h>
2b257425 393#include <linux/backlight.h>
1da177e4
LT		 394#include <asm/io.h>
395
396struct vm_area_struct;
397struct fb_info;
398struct device;
399struct file;
400
401/* Definitions below are used in the parsed monitor specs */
402#define FB_DPMS_ACTIVE_OFF 1
403#define FB_DPMS_SUSPEND 2
404#define FB_DPMS_STANDBY 4
405
406#define FB_DISP_DDI 1
407#define FB_DISP_ANA_700_300 2
408#define FB_DISP_ANA_714_286 4
409#define FB_DISP_ANA_1000_400 8
410#define FB_DISP_ANA_700_000 16
411
412#define FB_DISP_MONO 32
413#define FB_DISP_RGB 64
414#define FB_DISP_MULTI 128
415#define FB_DISP_UNKNOWN 256
416
417#define FB_SIGNAL_NONE 0
418#define FB_SIGNAL_BLANK_BLANK 1
419#define FB_SIGNAL_SEPARATE 2
420#define FB_SIGNAL_COMPOSITE 4
421#define FB_SIGNAL_SYNC_ON_GREEN 8
422#define FB_SIGNAL_SERRATION_ON 16
423
424#define FB_MISC_PRIM_COLOR 1
425#define FB_MISC_1ST_DETAIL 2 /* First Detailed Timing is preferred */
426struct fb_chroma {
427 __u32 redx; /* in fraction of 1024 */
428 __u32 greenx;
429 __u32 bluex;
430 __u32 whitex;
431 __u32 redy;
432 __u32 greeny;
433 __u32 bluey;
434 __u32 whitey;
435};
436
437struct fb_monspecs {
438 struct fb_chroma chroma;
439 struct fb_videomode *modedb; /* mode database */
440 __u8 manufacturer[4]; /* Manufacturer */
441 __u8 monitor[14]; /* Monitor String */
442 __u8 serial_no[14]; /* Serial Number */
443 __u8 ascii[14]; /* ? */
444 __u32 modedb_len; /* mode database length */
445 __u32 model; /* Monitor Model */
446 __u32 serial; /* Serial Number - Integer */
447 __u32 year; /* Year manufactured */
448 __u32 week; /* Week Manufactured */
449 __u32 hfmin; /* hfreq lower limit (Hz) */
450 __u32 hfmax; /* hfreq upper limit (Hz) */
451 __u32 dclkmin; /* pixelclock lower limit (Hz) */
452 __u32 dclkmax; /* pixelclock upper limit (Hz) */
453 __u16 input; /* display type - see FB_DISP_* */
454 __u16 dpms; /* DPMS support - see FB_DPMS_ */
455 __u16 signal; /* Signal Type - see FB_SIGNAL_* */
456 __u16 vfmin; /* vfreq lower limit (Hz) */
457 __u16 vfmax; /* vfreq upper limit (Hz) */
458 __u16 gamma; /* Gamma - in fractions of 100 */
459 __u16 gtf : 1; /* supports GTF */
460 __u16 misc; /* Misc flags - see FB_MISC_* */
461 __u8 version; /* EDID version... */
462 __u8 revision; /* ...and revision */
463 __u8 max_x; /* Maximum horizontal size (cm) */
464 __u8 max_y; /* Maximum vertical size (cm) */
465};
466
467struct fb_cmap_user {
468 __u32 start; /* First entry */
469 __u32 len; /* Number of entries */
470 __u16 __user *red; /* Red values */
471 __u16 __user *green;
472 __u16 __user *blue;
473 __u16 __user *transp; /* transparency, can be NULL */
474};
475
476struct fb_image_user {
477 __u32 dx; /* Where to place image */
478 __u32 dy;
479 __u32 width; /* Size of image */
480 __u32 height;
481 __u32 fg_color; /* Only used when a mono bitmap */
482 __u32 bg_color;
483 __u8 depth; /* Depth of the image */
484 const char __user *data; /* Pointer to image data */
485 struct fb_cmap_user cmap; /* color map info */
486};
487
488struct fb_cursor_user {
489 __u16 set; /* what to set */
490 __u16 enable; /* cursor on/off */
491 __u16 rop; /* bitop operation */
492 const char __user *mask; /* cursor mask bits */
493 struct fbcurpos hot; /* cursor hot spot */
494 struct fb_image_user image; /* Cursor image */
495};
496
497/*
498 * Register/unregister for framebuffer events
499 */
500
501/* The resolution of the passed in fb_info about to change */
502#define FB_EVENT_MODE_CHANGE 0x01
503/* The display on this fb_info is beeing suspended, no access to the
504 * framebuffer is allowed any more after that call returns
505 */
506#define FB_EVENT_SUSPEND 0x02
507/* The display on this fb_info was resumed, you can restore the display
508 * if you own it
509 */
510#define FB_EVENT_RESUME 0x03
511/* An entry from the modelist was removed */
512#define FB_EVENT_MODE_DELETE 0x04
513/* A driver registered itself */
514#define FB_EVENT_FB_REGISTERED 0x05
e614b18d
AD		 515/* A driver unregistered itself */
516#define FB_EVENT_FB_UNREGISTERED 0x06
e4fc2761 517/* CONSOLE-SPECIFIC: get console to framebuffer mapping */
e614b18d 518#define FB_EVENT_GET_CONSOLE_MAP 0x07
e4fc2761 519/* CONSOLE-SPECIFIC: set console to framebuffer mapping */
e614b18d 520#define FB_EVENT_SET_CONSOLE_MAP 0x08
994efacd 521/* A hardware display blank change occured */
e614b18d 522#define FB_EVENT_BLANK 0x09
1da177e4 523/* Private modelist is to be replaced */
e614b18d 524#define FB_EVENT_NEW_MODELIST 0x0A
7726e9e1
AD		 525/* The resolution of the passed in fb_info about to change and
526 all vc's should be changed */
e614b18d 527#define FB_EVENT_MODE_CHANGE_ALL 0x0B
994efacd
RP		 528/* A software display blank change occured */
529#define FB_EVENT_CONBLANK 0x0C
1da177e4
LT		 530
531struct fb_event {
532 struct fb_info *info;
533 void *data;
534};
535
536
537extern int fb_register_client(struct notifier_block *nb);
538extern int fb_unregister_client(struct notifier_block *nb);
256154fb 539extern int fb_notifier_call_chain(unsigned long val, void *v);
1da177e4
LT		 540/*
541 * Pixmap structure definition
542 *
543 * The purpose of this structure is to translate data
544 * from the hardware independent format of fbdev to what
545 * format the hardware needs.
546 */
547
548#define FB_PIXMAP_DEFAULT 1 /* used internally by fbcon */
549#define FB_PIXMAP_SYSTEM 2 /* memory is in system RAM */
550#define FB_PIXMAP_IO 4 /* memory is iomapped */
551#define FB_PIXMAP_SYNC 256 /* set if GPU can DMA */
552
553struct fb_pixmap {
554 u8 *addr; /* pointer to memory */
555 u32 size; /* size of buffer in bytes */
556 u32 offset; /* current offset to buffer */
557 u32 buf_align; /* byte alignment of each bitmap */
558 u32 scan_align; /* alignment per scanline */
f5a9951c 559 u32 access_align; /* alignment per read/write (bits) */
1da177e4 560 u32 flags; /* see FB_PIXMAP_* */
bf26ad72
AD		 561 u32 blit_x; /* supported bit block dimensions (1-32)*/
562 u32 blit_y; /* Format: blit_x = 1 << (width - 1) */
563 /* blit_y = 1 << (height - 1) */
564 /* if 0, will be set to 0xffffffff (all)*/
1da177e4 565 /* access methods */
f5a9951c
JS		 566 void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size);
567 void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size);
1da177e4
LT		 568};
569
60b59bea
JK		 570#ifdef CONFIG_FB_DEFERRED_IO
571struct fb_deferred_io {
572 /* delay between mkwrite and deferred handler */
573 unsigned long delay;
574 struct mutex lock; /* mutex that protects the page list */
575 struct list_head pagelist; /* list of touched pages */
576 /* callback */
577 void (*deferred_io)(struct fb_info *info, struct list_head *pagelist);
578};
579#endif
1da177e4
LT		 580
581/*
582 * Frame buffer operations
583 *
584 * LOCKING NOTE: those functions must _ALL_ be called with the console
b3c2ffd5 585 * semaphore held, this is the only suitable locking mechanism we have
1da177e4
LT		 586 * in 2.6. Some may be called at interrupt time at this point though.
587 */
588
589struct fb_ops {
590 /* open/release and usage marking */
591 struct module *owner;
592 int (*fb_open)(struct fb_info *info, int user);
593 int (*fb_release)(struct fb_info *info, int user);
594
595 /* For framebuffers with strange non linear layouts or that do not
596 * work with normal memory mapped access
597 */
3f9b0880
AD		 598 ssize_t (*fb_read)(struct fb_info *info, char __user *buf,
599 size_t count, loff_t *ppos);
600 ssize_t (*fb_write)(struct fb_info *info, const char __user *buf,
601 size_t count, loff_t *ppos);
1da177e4
LT		 602
603 /* checks var and eventually tweaks it to something supported,
604 * DO NOT MODIFY PAR */
605 int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
606
607 /* set the video mode according to info->var */
608 int (*fb_set_par)(struct fb_info *info);
609
610 /* set color register */
611 int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green,
612 unsigned blue, unsigned transp, struct fb_info *info);
613
71494376
BH		 614 /* set color registers in batch */
615 int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info);
616
1da177e4
LT		 617 /* blank display */
618 int (*fb_blank)(int blank, struct fb_info *info);
619
620 /* pan display */
621 int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info);
622
623 /* Draws a rectangle */
624 void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);
625 /* Copy data from area to another */
626 void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);
627 /* Draws a image to the display */
628 void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
629
630 /* Draws cursor */
631 int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
632
633 /* Rotates the display */
634 void (*fb_rotate)(struct fb_info *info, int angle);
635
636 /* wait for blit idle, optional */
637 int (*fb_sync)(struct fb_info *info);
638
639 /* perform fb specific ioctl (optional) */
67a6680d
CH		 640 int (*fb_ioctl)(struct fb_info *info, unsigned int cmd,
641 unsigned long arg);
1da177e4
LT		 642
643 /* Handle 32bit compat ioctl (optional) */
67a6680d
CH		 644 int (*fb_compat_ioctl)(struct fb_info *info, unsigned cmd,
645 unsigned long arg);
1da177e4
LT		 646
647 /* perform fb specific mmap */
216d526c 648 int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma);
47434847
AD		 649
650 /* save current hardware state */
651 void (*fb_save_state)(struct fb_info *info);
652
653 /* restore saved state */
654 void (*fb_restore_state)(struct fb_info *info);
1da177e4
LT		 655};
656
657#ifdef CONFIG_FB_TILEBLITTING
1da177e4
LT		 658#define FB_TILE_CURSOR_NONE 0
659#define FB_TILE_CURSOR_UNDERLINE 1
660#define FB_TILE_CURSOR_LOWER_THIRD 2
661#define FB_TILE_CURSOR_LOWER_HALF 3
662#define FB_TILE_CURSOR_TWO_THIRDS 4
663#define FB_TILE_CURSOR_BLOCK 5
664
665struct fb_tilemap {
666 __u32 width; /* width of each tile in pixels */
667 __u32 height; /* height of each tile in scanlines */
668 __u32 depth; /* color depth of each tile */
669 __u32 length; /* number of tiles in the map */
2f4516db 670 const __u8 *data; /* actual tile map: a bitmap array, packed
1da177e4
LT		 671 to the nearest byte */
672};
673
674struct fb_tilerect {
675 __u32 sx; /* origin in the x-axis */
676 __u32 sy; /* origin in the y-axis */
677 __u32 width; /* number of tiles in the x-axis */
678 __u32 height; /* number of tiles in the y-axis */
679 __u32 index; /* what tile to use: index to tile map */
680 __u32 fg; /* foreground color */
681 __u32 bg; /* background color */
682 __u32 rop; /* raster operation */
683};
684
685struct fb_tilearea {
686 __u32 sx; /* source origin in the x-axis */
687 __u32 sy; /* source origin in the y-axis */
688 __u32 dx; /* destination origin in the x-axis */
689 __u32 dy; /* destination origin in the y-axis */
690 __u32 width; /* number of tiles in the x-axis */
691 __u32 height; /* number of tiles in the y-axis */
692};
693
694struct fb_tileblit {
695 __u32 sx; /* origin in the x-axis */
696 __u32 sy; /* origin in the y-axis */
697 __u32 width; /* number of tiles in the x-axis */
698 __u32 height; /* number of tiles in the y-axis */
699 __u32 fg; /* foreground color */
700 __u32 bg; /* background color */
701 __u32 length; /* number of tiles to draw */
702 __u32 *indices; /* array of indices to tile map */
703};
704
705struct fb_tilecursor {
706 __u32 sx; /* cursor position in the x-axis */
707 __u32 sy; /* cursor position in the y-axis */
708 __u32 mode; /* 0 = erase, 1 = draw */
709 __u32 shape; /* see FB_TILE_CURSOR_* */
710 __u32 fg; /* foreground color */
711 __u32 bg; /* background color */
712};
713
714struct fb_tile_ops {
715 /* set tile characteristics */
716 void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map);
717
718 /* all dimensions from hereon are in terms of tiles */
719
720 /* move a rectangular region of tiles from one area to another*/
721 void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area);
722 /* fill a rectangular region with a tile */
723 void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect);
724 /* copy an array of tiles */
725 void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit);
726 /* cursor */
727 void (*fb_tilecursor)(struct fb_info *info,
728 struct fb_tilecursor *cursor);
11f11d52
AD		 729 /* get maximum length of the tile map */
730 int (*fb_get_tilemax)(struct fb_info *info);
1da177e4
LT		 731};
732#endif /* CONFIG_FB_TILEBLITTING */
733
734/* FBINFO_* = fb_info.flags bit flags */
735#define FBINFO_MODULE 0x0001 /* Low-level driver is a module */
736#define FBINFO_HWACCEL_DISABLED 0x0002
737 /* When FBINFO_HWACCEL_DISABLED is set:
738 * Hardware acceleration is turned off. Software implementations
739 * of required functions (copyarea(), fillrect(), and imageblit())
740 * takes over; acceleration engine should be in a quiescent state */
741
742/* hints */
743#define FBINFO_PARTIAL_PAN_OK 0x0040 /* otw use pan only for double-buffering */
744#define FBINFO_READS_FAST 0x0080 /* soft-copy faster than rendering */
745
746/* hardware supported ops */
747/* semantics: when a bit is set, it indicates that the operation is
748 * accelerated by hardware.
749 * required functions will still work even if the bit is not set.
750 * optional functions may not even exist if the flag bit is not set.
751 */
752#define FBINFO_HWACCEL_NONE 0x0000
753#define FBINFO_HWACCEL_COPYAREA 0x0100 /* required */
754#define FBINFO_HWACCEL_FILLRECT 0x0200 /* required */
755#define FBINFO_HWACCEL_IMAGEBLIT 0x0400 /* required */
756#define FBINFO_HWACCEL_ROTATE 0x0800 /* optional */
757#define FBINFO_HWACCEL_XPAN 0x1000 /* optional */
758#define FBINFO_HWACCEL_YPAN 0x2000 /* optional */
759#define FBINFO_HWACCEL_YWRAP 0x4000 /* optional */
760
761#define FBINFO_MISC_USEREVENT 0x10000 /* event request
762 from userspace */
763#define FBINFO_MISC_TILEBLITTING 0x20000 /* use tile blitting */
764
39942fd8
KP		 765/* A driver may set this flag to indicate that it does want a set_par to be
766 * called every time when fbcon_switch is executed. The advantage is that with
7f927fcc 767 * this flag set you can really be sure that set_par is always called before
39942fd8
KP		 768 * any of the functions dependant on the correct hardware state or altering
769 * that state, even if you are using some broken X releases. The disadvantage
770 * is that it introduces unwanted delays to every console switch if set_par
771 * is slow. It is a good idea to try this flag in the drivers initialization
772 * code whenever there is a bug report related to switching between X and the
773 * framebuffer console.
774 */
775#define FBINFO_MISC_ALWAYS_SETPAR 0x40000
776
1da177e4
LT		 777struct fb_info {
778 int node;
779 int flags;
780 struct fb_var_screeninfo var; /* Current var */
781 struct fb_fix_screeninfo fix; /* Current fix */
782 struct fb_monspecs monspecs; /* Current Monitor specs */
783 struct work_struct queue; /* Framebuffer event queue */
784 struct fb_pixmap pixmap; /* Image hardware mapper */
785 struct fb_pixmap sprite; /* Cursor hardware mapper */
786 struct fb_cmap cmap; /* Current cmap */
787 struct list_head modelist; /* mode list */
788 struct fb_videomode *mode; /* current mode */
5474c120
MH		 789
790#ifdef CONFIG_FB_BACKLIGHT
5474c120 791 /* assigned backlight device */
37ce69a5
RP		 792 /* set before framebuffer registration,
793 remove after unregister */
5474c120
MH		 794 struct backlight_device *bl_dev;
795
796 /* Backlight level curve */
37ce69a5 797 struct mutex bl_curve_mutex;
5474c120
MH		 798 u8 bl_curve[FB_BACKLIGHT_LEVELS];
799#endif
60b59bea
JK		 800#ifdef CONFIG_FB_DEFERRED_IO
801 struct delayed_work deferred_work;
802 struct fb_deferred_io *fbdefio;
803#endif
5474c120 804
1da177e4 805 struct fb_ops *fbops;
78cde088
GKH		 806 struct device *device; /* This is the parent */
807 struct device *dev; /* This is this fb device */
1a6600be 808 int class_flag; /* private sysfs flags */
1da177e4
LT		 809#ifdef CONFIG_FB_TILEBLITTING
810 struct fb_tile_ops *tileops; /* Tile Blitting */
811#endif
812 char __iomem *screen_base; /* Virtual address */
813 unsigned long screen_size; /* Amount of ioremapped VRAM or 0 */
814 void *pseudo_palette; /* Fake palette of 16 colors */
815#define FBINFO_STATE_RUNNING 0
816#define FBINFO_STATE_SUSPENDED 1
817 u32 state; /* Hardware state i.e suspend */
818 void *fbcon_par; /* fbcon use-only private area */
819 /* From here on everything is device dependent */
820 void *par;
821};
822
823#ifdef MODULE
824#define FBINFO_DEFAULT FBINFO_MODULE
825#else
826#define FBINFO_DEFAULT 0
827#endif
828
829// This will go away
830#define FBINFO_FLAG_MODULE FBINFO_MODULE
831#define FBINFO_FLAG_DEFAULT FBINFO_DEFAULT
832
833/* This will go away
834 * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags
835 * when it wants to turn the acceleration engine on. This is
836 * really a separate operation, and should be modified via sysfs.
837 * But for now, we leave it broken with the following define
838 */
839#define STUPID_ACCELF_TEXT_SHIT
840
841// This will go away
842#if defined(__sparc__)
843
844/* We map all of our framebuffers such that big-endian accesses
845 * are what we want, so the following is sufficient.
846 */
847
848// This will go away
849#define fb_readb sbus_readb
850#define fb_readw sbus_readw
851#define fb_readl sbus_readl
852#define fb_readq sbus_readq
853#define fb_writeb sbus_writeb
854#define fb_writew sbus_writew
855#define fb_writel sbus_writel
856#define fb_writeq sbus_writeq
857#define fb_memset sbus_memset_io
858
859#elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || (defined(__sh__) && !defined(__SH5__)) || defined(__powerpc__)
860
861#define fb_readb __raw_readb
862#define fb_readw __raw_readw
863#define fb_readl __raw_readl
864#define fb_readq __raw_readq
865#define fb_writeb __raw_writeb
866#define fb_writew __raw_writew
867#define fb_writel __raw_writel
868#define fb_writeq __raw_writeq
869#define fb_memset memset_io
870
871#else
872
873#define fb_readb(addr) (*(volatile u8 *) (addr))
874#define fb_readw(addr) (*(volatile u16 *) (addr))
875#define fb_readl(addr) (*(volatile u32 *) (addr))
876#define fb_readq(addr) (*(volatile u64 *) (addr))
877#define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
878#define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
879#define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
880#define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b))
881#define fb_memset memset
882
be0d9b6c
AD		 883#endif
884
885#if defined (__BIG_ENDIAN)
886#define FB_LEFT_POS(bpp) (32 - bpp)
887#define FB_SHIFT_HIGH(val, bits) ((val) >> (bits))
888#define FB_SHIFT_LOW(val, bits) ((val) << (bits))
be0d9b6c
AD		 889#else
890#define FB_LEFT_POS(bpp) (0)
891#define FB_SHIFT_HIGH(val, bits) ((val) << (bits))
892#define FB_SHIFT_LOW(val, bits) ((val) >> (bits))
1da177e4
LT		 893#endif
894
895 /*
896 * `Generic' versions of the frame buffer device operations
897 */
898
899extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var);
900extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var);
901extern int fb_blank(struct fb_info *info, int blank);
1da177e4
LT		 902extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
903extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
904extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image);
68648ed1
AD		 905/*
906 * Drawing operations where framebuffer is in system RAM
907 */
908extern void sys_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
909extern void sys_copyarea(struct fb_info *info, const struct fb_copyarea *area);
910extern void sys_imageblit(struct fb_info *info, const struct fb_image *image);
09aaf268
AD		 911extern ssize_t fb_sys_read(struct fb_info *info, char __user *buf,
912 size_t count, loff_t *ppos);
913extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
914 size_t count, loff_t *ppos);
1da177e4
LT		 915
916/* drivers/video/fbmem.c */
917extern int register_framebuffer(struct fb_info *fb_info);
918extern int unregister_framebuffer(struct fb_info *fb_info);
9c44e5f6
AD		 919extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
920extern int fb_show_logo(struct fb_info *fb_info, int rotate);
1da177e4 921extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);
f1ab5dac 922extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx,
1da177e4 923 u32 height, u32 shift_high, u32 shift_low, u32 mod);
f1ab5dac 924extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height);
1da177e4 925extern void fb_set_suspend(struct fb_info *info, int state);
b8c90945
AD		 926extern int fb_get_color_depth(struct fb_var_screeninfo *var,
927 struct fb_fix_screeninfo *fix);
1da177e4
LT		 928extern int fb_get_options(char *name, char **option);
929extern int fb_new_modelist(struct fb_info *info);
930
931extern struct fb_info *registered_fb[FB_MAX];
932extern int num_registered_fb;
933
829e79b6
AD		 934static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch,
935 u8 *src, u32 s_pitch, u32 height)
936{
937 int i, j;
938
939 d_pitch -= s_pitch;
940
941 for (i = height; i--; ) {
942 /* s_pitch is a few bytes at the most, memcpy is suboptimal */
943 for (j = 0; j < s_pitch; j++)
944 *dst++ = *src++;
945 dst += d_pitch;
946 }
947}
948
60b59bea
JK		 949/* drivers/video/fb_defio.c */
950extern void fb_deferred_io_init(struct fb_info *info);
951extern void fb_deferred_io_cleanup(struct fb_info *info);
5e841b88
PM		 952extern int fb_deferred_io_fsync(struct file *file, struct dentry *dentry,
953 int datasync);
60b59bea 954
1da177e4
LT		 955/* drivers/video/fbsysfs.c */
956extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);
957extern void framebuffer_release(struct fb_info *info);
78cde088
GKH		 958extern int fb_init_device(struct fb_info *fb_info);
959extern void fb_cleanup_device(struct fb_info *head);
5474c120 960extern void fb_bl_default_curve(struct fb_info *fb_info, u8 off, u8 min, u8 max);
1da177e4
LT		 961
962/* drivers/video/fbmon.c */
963#define FB_MAXTIMINGS 0
964#define FB_VSYNCTIMINGS 1
965#define FB_HSYNCTIMINGS 2
966#define FB_DCLKTIMINGS 3
967#define FB_IGNOREMON 0x100
968
969#define FB_MODE_IS_UNKNOWN 0
970#define FB_MODE_IS_DETAILED 1
971#define FB_MODE_IS_STANDARD 2
972#define FB_MODE_IS_VESA 4
973#define FB_MODE_IS_CALCULATED 8
974#define FB_MODE_IS_FIRST 16
975#define FB_MODE_IS_FROM_VAR 32
976
1da177e4
LT		 977extern int fbmon_dpms(const struct fb_info *fb_info);
978extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var,
979 struct fb_info *info);
980extern int fb_validate_mode(const struct fb_var_screeninfo *var,
981 struct fb_info *info);
982extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);
5e518d76
AD		 983extern const unsigned char *fb_firmware_edid(struct device *device);
984extern void fb_edid_to_monspecs(unsigned char *edid,
985 struct fb_monspecs *specs);
1da177e4 986extern void fb_destroy_modedb(struct fb_videomode *modedb);
96fe6a21 987extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb);
fc5891c8 988extern unsigned char *fb_ddc_read(struct i2c_adapter *adapter);
1da177e4
LT		 989
990/* drivers/video/modedb.c */
991#define VESA_MODEDB_SIZE 34
992extern void fb_var_to_videomode(struct fb_videomode *mode,
9791d763 993 const struct fb_var_screeninfo *var);
1da177e4 994extern void fb_videomode_to_var(struct fb_var_screeninfo *var,
9791d763
GU		 995 const struct fb_videomode *mode);
996extern int fb_mode_is_equal(const struct fb_videomode *mode1,
997 const struct fb_videomode *mode2);
998extern int fb_add_videomode(const struct fb_videomode *mode,
999 struct list_head *head);
1000extern void fb_delete_videomode(const struct fb_videomode *mode,
1da177e4 1001 struct list_head *head);
9791d763
GU		 1002extern const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var,
1003 struct list_head *head);
1004extern const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var,
1005 struct list_head *head);
1006extern const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode,
1007 struct list_head *head);
1da177e4 1008extern void fb_destroy_modelist(struct list_head *head);
9791d763 1009extern void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num,
1da177e4 1010 struct list_head *head);
9791d763
GU		 1011extern const struct fb_videomode *fb_find_best_display(const struct fb_monspecs *specs,
1012 struct list_head *head);
1da177e4
LT		 1013
1014/* drivers/video/fbcmap.c */
1015extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);
1016extern void fb_dealloc_cmap(struct fb_cmap *cmap);
adf6b206
HD		 1017extern int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to);
1018extern int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to);
1da177e4
LT		 1019extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info);
1020extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info);
adf6b206 1021extern const struct fb_cmap *fb_default_cmap(int len);
1da177e4
LT		 1022extern void fb_invert_cmaps(void);
1023
1024struct fb_videomode {
1025 const char *name; /* optional */
1026 u32 refresh; /* optional */
1027 u32 xres;
1028 u32 yres;
1029 u32 pixclock;
1030 u32 left_margin;
1031 u32 right_margin;
1032 u32 upper_margin;
1033 u32 lower_margin;
1034 u32 hsync_len;
1035 u32 vsync_len;
1036 u32 sync;
1037 u32 vmode;
1038 u32 flag;
1039};
1040
1041extern const struct fb_videomode vesa_modes[];
1042
1043struct fb_modelist {
1044 struct list_head list;
1045 struct fb_videomode mode;
1046};
1047
1048extern int fb_find_mode(struct fb_var_screeninfo *var,
1049 struct fb_info *info, const char *mode_option,
1050 const struct fb_videomode *db,
1051 unsigned int dbsize,
1052 const struct fb_videomode *default_mode,
1053 unsigned int default_bpp);
1054
1055#endif /* __KERNEL__ */
1056
1057#endif /* _LINUX_FB_H */
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