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[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
00bfddaf 4#include <linux/types.h>
fc5891c8 5#include <linux/i2c.h>
d219adc1
JB		 6#ifdef __KERNEL__
7#include <linux/kgdb.h>
8#endif /* __KERNEL__ */
1da177e4
LT		 9
10/* Definitions of frame buffers */
11
1da177e4
LT		 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
49c39b49 41#define FBIO_WAITFORVSYNC _IOW('F', 0x20, __u32)
1da177e4
LT		 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 */
fe0e3a9d 122#define FB_ACCEL_OMAP1610 49 /* TI OMAP16xx */
01a2d9ed
KH		 123#define FB_ACCEL_TRIDENT_TGUI 50 /* Trident TGUI */
124#define FB_ACCEL_TRIDENT_3DIMAGE 51 /* Trident 3DImage */
125#define FB_ACCEL_TRIDENT_BLADE3D 52 /* Trident Blade3D */
126#define FB_ACCEL_TRIDENT_BLADEXP 53 /* Trident BladeXP */
614c0dc9 127#define FB_ACCEL_CIRRUS_ALPINE 53 /* Cirrus Logic 543x/544x/5480 */
1da177e4
LT		 128#define FB_ACCEL_NEOMAGIC_NM2070 90 /* NeoMagic NM2070 */
129#define FB_ACCEL_NEOMAGIC_NM2090 91 /* NeoMagic NM2090 */
130#define FB_ACCEL_NEOMAGIC_NM2093 92 /* NeoMagic NM2093 */
131#define FB_ACCEL_NEOMAGIC_NM2097 93 /* NeoMagic NM2097 */
132#define FB_ACCEL_NEOMAGIC_NM2160 94 /* NeoMagic NM2160 */
133#define FB_ACCEL_NEOMAGIC_NM2200 95 /* NeoMagic NM2200 */
134#define FB_ACCEL_NEOMAGIC_NM2230 96 /* NeoMagic NM2230 */
135#define FB_ACCEL_NEOMAGIC_NM2360 97 /* NeoMagic NM2360 */
136#define FB_ACCEL_NEOMAGIC_NM2380 98 /* NeoMagic NM2380 */
52a7a1ce 137#define FB_ACCEL_PXA3XX 99 /* PXA3xx */
1da177e4
LT		 138
139#define FB_ACCEL_SAVAGE4 0x80 /* S3 Savage4 */
140#define FB_ACCEL_SAVAGE3D 0x81 /* S3 Savage3D */
141#define FB_ACCEL_SAVAGE3D_MV 0x82 /* S3 Savage3D-MV */
142#define FB_ACCEL_SAVAGE2000 0x83 /* S3 Savage2000 */
143#define FB_ACCEL_SAVAGE_MX_MV 0x84 /* S3 Savage/MX-MV */
144#define FB_ACCEL_SAVAGE_MX 0x85 /* S3 Savage/MX */
145#define FB_ACCEL_SAVAGE_IX_MV 0x86 /* S3 Savage/IX-MV */
146#define FB_ACCEL_SAVAGE_IX 0x87 /* S3 Savage/IX */
147#define FB_ACCEL_PROSAVAGE_PM 0x88 /* S3 ProSavage PM133 */
148#define FB_ACCEL_PROSAVAGE_KM 0x89 /* S3 ProSavage KM133 */
149#define FB_ACCEL_S3TWISTER_P 0x8a /* S3 Twister */
150#define FB_ACCEL_S3TWISTER_K 0x8b /* S3 TwisterK */
151#define FB_ACCEL_SUPERSAVAGE 0x8c /* S3 Supersavage */
152#define FB_ACCEL_PROSAVAGE_DDR 0x8d /* S3 ProSavage DDR */
153#define FB_ACCEL_PROSAVAGE_DDRK 0x8e /* S3 ProSavage DDR-K */
154
155struct fb_fix_screeninfo {
156 char id[16]; /* identification string eg "TT Builtin" */
157 unsigned long smem_start; /* Start of frame buffer mem */
158 /* (physical address) */
159 __u32 smem_len; /* Length of frame buffer mem */
160 __u32 type; /* see FB_TYPE_* */
161 __u32 type_aux; /* Interleave for interleaved Planes */
162 __u32 visual; /* see FB_VISUAL_* */
163 __u16 xpanstep; /* zero if no hardware panning */
164 __u16 ypanstep; /* zero if no hardware panning */
165 __u16 ywrapstep; /* zero if no hardware ywrap */
166 __u32 line_length; /* length of a line in bytes */
167 unsigned long mmio_start; /* Start of Memory Mapped I/O */
168 /* (physical address) */
169 __u32 mmio_len; /* Length of Memory Mapped I/O */
170 __u32 accel; /* Indicate to driver which */
171 /* specific chip/card we have */
172 __u16 reserved[3]; /* Reserved for future compatibility */
173};
174
175/* Interpretation of offset for color fields: All offsets are from the right,
176 * inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
177 * can use the offset as right argument to <<). A pixel afterwards is a bit
ebde4411
MJ		 178 * stream and is written to video memory as that unmodified.
179 *
180 * For pseudocolor: offset and length should be the same for all color
181 * components. Offset specifies the position of the least significant bit
182 * of the pallette index in a pixel value. Length indicates the number
183 * of available palette entries (i.e. # of entries = 1 << length).
1da177e4
LT		 184 */
185struct fb_bitfield {
186 __u32 offset; /* beginning of bitfield */
187 __u32 length; /* length of bitfield */
188 __u32 msb_right; /* != 0 : Most significant bit is */
189 /* right */
190};
191
192#define FB_NONSTD_HAM 1 /* Hold-And-Modify (HAM) */
779121e9 193#define FB_NONSTD_REV_PIX_IN_B 2 /* order of pixels in each byte is reversed */
1da177e4
LT		 194
195#define FB_ACTIVATE_NOW 0 /* set values immediately (or vbl)*/
196#define FB_ACTIVATE_NXTOPEN 1 /* activate on next open */
197#define FB_ACTIVATE_TEST 2 /* don't set, round up impossible */
198#define FB_ACTIVATE_MASK 15
199 /* values */
200#define FB_ACTIVATE_VBL 16 /* activate values on next vbl */
201#define FB_CHANGE_CMAP_VBL 32 /* change colormap on vbl */
202#define FB_ACTIVATE_ALL 64 /* change all VCs on this fb */
203#define FB_ACTIVATE_FORCE 128 /* force apply even when no change*/
204#define FB_ACTIVATE_INV_MODE 256 /* invalidate videomode */
205
206#define FB_ACCELF_TEXT 1 /* (OBSOLETE) see fb_info.flags and vc_mode */
207
208#define FB_SYNC_HOR_HIGH_ACT 1 /* horizontal sync high active */
209#define FB_SYNC_VERT_HIGH_ACT 2 /* vertical sync high active */
210#define FB_SYNC_EXT 4 /* external sync */
211#define FB_SYNC_COMP_HIGH_ACT 8 /* composite sync high active */
212#define FB_SYNC_BROADCAST 16 /* broadcast video timings */
213 /* vtotal = 144d/288n/576i => PAL */
214 /* vtotal = 121d/242n/484i => NTSC */
215#define FB_SYNC_ON_GREEN 32 /* sync on green */
216
217#define FB_VMODE_NONINTERLACED 0 /* non interlaced */
218#define FB_VMODE_INTERLACED 1 /* interlaced */
219#define FB_VMODE_DOUBLE 2 /* double scan */
394d3af7 220#define FB_VMODE_ODD_FLD_FIRST 4 /* interlaced: top line first */
1da177e4
LT		 221#define FB_VMODE_MASK 255
222
223#define FB_VMODE_YWRAP 256 /* ywrap instead of panning */
224#define FB_VMODE_SMOOTH_XPAN 512 /* smooth xpan possible (internally used) */
225#define FB_VMODE_CONUPDATE 512 /* don't update x/yoffset */
226
e4fc2761
AD		 227/*
228 * Display rotation support
229 */
230#define FB_ROTATE_UR 0
231#define FB_ROTATE_CW 1
232#define FB_ROTATE_UD 2
233#define FB_ROTATE_CCW 3
234
1da177e4
LT		 235#define PICOS2KHZ(a) (1000000000UL/(a))
236#define KHZ2PICOS(a) (1000000000UL/(a))
237
238struct fb_var_screeninfo {
239 __u32 xres; /* visible resolution */
240 __u32 yres;
241 __u32 xres_virtual; /* virtual resolution */
242 __u32 yres_virtual;
243 __u32 xoffset; /* offset from virtual to visible */
244 __u32 yoffset; /* resolution */
245
246 __u32 bits_per_pixel; /* guess what */
247 __u32 grayscale; /* != 0 Graylevels instead of colors */
248
249 struct fb_bitfield red; /* bitfield in fb mem if true color, */
250 struct fb_bitfield green; /* else only length is significant */
251 struct fb_bitfield blue;
252 struct fb_bitfield transp; /* transparency */
253
254 __u32 nonstd; /* != 0 Non standard pixel format */
255
256 __u32 activate; /* see FB_ACTIVATE_* */
257
258 __u32 height; /* height of picture in mm */
259 __u32 width; /* width of picture in mm */
260
261 __u32 accel_flags; /* (OBSOLETE) see fb_info.flags */
262
263 /* Timing: All values in pixclocks, except pixclock (of course) */
264 __u32 pixclock; /* pixel clock in ps (pico seconds) */
265 __u32 left_margin; /* time from sync to picture */
266 __u32 right_margin; /* time from picture to sync */
267 __u32 upper_margin; /* time from sync to picture */
268 __u32 lower_margin;
269 __u32 hsync_len; /* length of horizontal sync */
270 __u32 vsync_len; /* length of vertical sync */
271 __u32 sync; /* see FB_SYNC_* */
272 __u32 vmode; /* see FB_VMODE_* */
273 __u32 rotate; /* angle we rotate counter clockwise */
274 __u32 reserved[5]; /* Reserved for future compatibility */
275};
276
277struct fb_cmap {
278 __u32 start; /* First entry */
279 __u32 len; /* Number of entries */
280 __u16 *red; /* Red values */
281 __u16 *green;
282 __u16 *blue;
283 __u16 *transp; /* transparency, can be NULL */
284};
285
286struct fb_con2fbmap {
287 __u32 console;
288 __u32 framebuffer;
289};
290
291/* VESA Blanking Levels */
292#define VESA_NO_BLANKING 0
293#define VESA_VSYNC_SUSPEND 1
294#define VESA_HSYNC_SUSPEND 2
295#define VESA_POWERDOWN 3
296
297
298enum {
299 /* screen: unblanked, hsync: on, vsync: on */
300 FB_BLANK_UNBLANK = VESA_NO_BLANKING,
301
302 /* screen: blanked, hsync: on, vsync: on */
303 FB_BLANK_NORMAL = VESA_NO_BLANKING + 1,
304
305 /* screen: blanked, hsync: on, vsync: off */
306 FB_BLANK_VSYNC_SUSPEND = VESA_VSYNC_SUSPEND + 1,
307
308 /* screen: blanked, hsync: off, vsync: on */
309 FB_BLANK_HSYNC_SUSPEND = VESA_HSYNC_SUSPEND + 1,
310
311 /* screen: blanked, hsync: off, vsync: off */
312 FB_BLANK_POWERDOWN = VESA_POWERDOWN + 1
313};
314
315#define FB_VBLANK_VBLANKING 0x001 /* currently in a vertical blank */
316#define FB_VBLANK_HBLANKING 0x002 /* currently in a horizontal blank */
317#define FB_VBLANK_HAVE_VBLANK 0x004 /* vertical blanks can be detected */
318#define FB_VBLANK_HAVE_HBLANK 0x008 /* horizontal blanks can be detected */
319#define FB_VBLANK_HAVE_COUNT 0x010 /* global retrace counter is available */
320#define FB_VBLANK_HAVE_VCOUNT 0x020 /* the vcount field is valid */
321#define FB_VBLANK_HAVE_HCOUNT 0x040 /* the hcount field is valid */
322#define FB_VBLANK_VSYNCING 0x080 /* currently in a vsync */
323#define FB_VBLANK_HAVE_VSYNC 0x100 /* verical syncs can be detected */
324
325struct fb_vblank {
326 __u32 flags; /* FB_VBLANK flags */
327 __u32 count; /* counter of retraces since boot */
328 __u32 vcount; /* current scanline position */
329 __u32 hcount; /* current scandot position */
330 __u32 reserved[4]; /* reserved for future compatibility */
331};
332
333/* Internal HW accel */
334#define ROP_COPY 0
335#define ROP_XOR 1
336
337struct fb_copyarea {
338 __u32 dx;
339 __u32 dy;
340 __u32 width;
341 __u32 height;
342 __u32 sx;
343 __u32 sy;
344};
345
346struct fb_fillrect {
347 __u32 dx; /* screen-relative */
348 __u32 dy;
349 __u32 width;
350 __u32 height;
351 __u32 color;
352 __u32 rop;
353};
354
355struct fb_image {
356 __u32 dx; /* Where to place image */
357 __u32 dy;
358 __u32 width; /* Size of image */
359 __u32 height;
360 __u32 fg_color; /* Only used when a mono bitmap */
361 __u32 bg_color;
362 __u8 depth; /* Depth of the image */
363 const char *data; /* Pointer to image data */
364 struct fb_cmap cmap; /* color map info */
365};
366
367/*
368 * hardware cursor control
369 */
370
371#define FB_CUR_SETIMAGE 0x01
372#define FB_CUR_SETPOS 0x02
373#define FB_CUR_SETHOT 0x04
374#define FB_CUR_SETCMAP 0x08
375#define FB_CUR_SETSHAPE 0x10
376#define FB_CUR_SETSIZE 0x20
377#define FB_CUR_SETALL 0xFF
378
379struct fbcurpos {
380 __u16 x, y;
381};
382
383struct fb_cursor {
384 __u16 set; /* what to set */
385 __u16 enable; /* cursor on/off */
386 __u16 rop; /* bitop operation */
387 const char *mask; /* cursor mask bits */
388 struct fbcurpos hot; /* cursor hot spot */
389 struct fb_image image; /* Cursor image */
390};
391
5474c120
MH		 392#ifdef CONFIG_FB_BACKLIGHT
393/* Settings for the generic backlight code */
394#define FB_BACKLIGHT_LEVELS 128
395#define FB_BACKLIGHT_MAX 0xFF
396#endif
397
1da177e4
LT		 398#ifdef __KERNEL__
399
400#include <linux/fs.h>
401#include <linux/init.h>
1da177e4
LT		 402#include <linux/device.h>
403#include <linux/workqueue.h>
1da177e4
LT		 404#include <linux/notifier.h>
405#include <linux/list.h>
2b257425 406#include <linux/backlight.h>
1471ca9a 407#include <linux/slab.h>
1da177e4
LT		 408#include <asm/io.h>
409
410struct vm_area_struct;
411struct fb_info;
412struct device;
413struct file;
414
415/* Definitions below are used in the parsed monitor specs */
416#define FB_DPMS_ACTIVE_OFF 1
417#define FB_DPMS_SUSPEND 2
418#define FB_DPMS_STANDBY 4
419
420#define FB_DISP_DDI 1
421#define FB_DISP_ANA_700_300 2
422#define FB_DISP_ANA_714_286 4
423#define FB_DISP_ANA_1000_400 8
424#define FB_DISP_ANA_700_000 16
425
426#define FB_DISP_MONO 32
427#define FB_DISP_RGB 64
428#define FB_DISP_MULTI 128
429#define FB_DISP_UNKNOWN 256
430
431#define FB_SIGNAL_NONE 0
432#define FB_SIGNAL_BLANK_BLANK 1
433#define FB_SIGNAL_SEPARATE 2
434#define FB_SIGNAL_COMPOSITE 4
435#define FB_SIGNAL_SYNC_ON_GREEN 8
436#define FB_SIGNAL_SERRATION_ON 16
437
438#define FB_MISC_PRIM_COLOR 1
439#define FB_MISC_1ST_DETAIL 2 /* First Detailed Timing is preferred */
440struct fb_chroma {
441 __u32 redx; /* in fraction of 1024 */
442 __u32 greenx;
443 __u32 bluex;
444 __u32 whitex;
445 __u32 redy;
446 __u32 greeny;
447 __u32 bluey;
448 __u32 whitey;
449};
450
451struct fb_monspecs {
452 struct fb_chroma chroma;
453 struct fb_videomode *modedb; /* mode database */
454 __u8 manufacturer[4]; /* Manufacturer */
455 __u8 monitor[14]; /* Monitor String */
456 __u8 serial_no[14]; /* Serial Number */
457 __u8 ascii[14]; /* ? */
458 __u32 modedb_len; /* mode database length */
459 __u32 model; /* Monitor Model */
460 __u32 serial; /* Serial Number - Integer */
461 __u32 year; /* Year manufactured */
462 __u32 week; /* Week Manufactured */
463 __u32 hfmin; /* hfreq lower limit (Hz) */
464 __u32 hfmax; /* hfreq upper limit (Hz) */
465 __u32 dclkmin; /* pixelclock lower limit (Hz) */
466 __u32 dclkmax; /* pixelclock upper limit (Hz) */
467 __u16 input; /* display type - see FB_DISP_* */
468 __u16 dpms; /* DPMS support - see FB_DPMS_ */
469 __u16 signal; /* Signal Type - see FB_SIGNAL_* */
470 __u16 vfmin; /* vfreq lower limit (Hz) */
471 __u16 vfmax; /* vfreq upper limit (Hz) */
472 __u16 gamma; /* Gamma - in fractions of 100 */
473 __u16 gtf : 1; /* supports GTF */
474 __u16 misc; /* Misc flags - see FB_MISC_* */
475 __u8 version; /* EDID version... */
476 __u8 revision; /* ...and revision */
477 __u8 max_x; /* Maximum horizontal size (cm) */
478 __u8 max_y; /* Maximum vertical size (cm) */
479};
480
481struct fb_cmap_user {
482 __u32 start; /* First entry */
483 __u32 len; /* Number of entries */
484 __u16 __user *red; /* Red values */
485 __u16 __user *green;
486 __u16 __user *blue;
487 __u16 __user *transp; /* transparency, can be NULL */
488};
489
490struct fb_image_user {
491 __u32 dx; /* Where to place image */
492 __u32 dy;
493 __u32 width; /* Size of image */
494 __u32 height;
495 __u32 fg_color; /* Only used when a mono bitmap */
496 __u32 bg_color;
497 __u8 depth; /* Depth of the image */
498 const char __user *data; /* Pointer to image data */
499 struct fb_cmap_user cmap; /* color map info */
500};
501
502struct fb_cursor_user {
503 __u16 set; /* what to set */
504 __u16 enable; /* cursor on/off */
505 __u16 rop; /* bitop operation */
506 const char __user *mask; /* cursor mask bits */
507 struct fbcurpos hot; /* cursor hot spot */
508 struct fb_image_user image; /* Cursor image */
509};
510
511/*
512 * Register/unregister for framebuffer events
513 */
514
515/* The resolution of the passed in fb_info about to change */
516#define FB_EVENT_MODE_CHANGE 0x01
517/* The display on this fb_info is beeing suspended, no access to the
518 * framebuffer is allowed any more after that call returns
519 */
520#define FB_EVENT_SUSPEND 0x02
521/* The display on this fb_info was resumed, you can restore the display
522 * if you own it
523 */
524#define FB_EVENT_RESUME 0x03
525/* An entry from the modelist was removed */
526#define FB_EVENT_MODE_DELETE 0x04
527/* A driver registered itself */
528#define FB_EVENT_FB_REGISTERED 0x05
e614b18d
AD		 529/* A driver unregistered itself */
530#define FB_EVENT_FB_UNREGISTERED 0x06
e4fc2761 531/* CONSOLE-SPECIFIC: get console to framebuffer mapping */
e614b18d 532#define FB_EVENT_GET_CONSOLE_MAP 0x07
e4fc2761 533/* CONSOLE-SPECIFIC: set console to framebuffer mapping */
e614b18d 534#define FB_EVENT_SET_CONSOLE_MAP 0x08
994efacd 535/* A hardware display blank change occured */
e614b18d 536#define FB_EVENT_BLANK 0x09
1da177e4 537/* Private modelist is to be replaced */
e614b18d 538#define FB_EVENT_NEW_MODELIST 0x0A
7726e9e1
AD		 539/* The resolution of the passed in fb_info about to change and
540 all vc's should be changed */
e614b18d 541#define FB_EVENT_MODE_CHANGE_ALL 0x0B
994efacd
RP		 542/* A software display blank change occured */
543#define FB_EVENT_CONBLANK 0x0C
38a3dc51
AD		 544/* Get drawing requirements */
545#define FB_EVENT_GET_REQ 0x0D
cfafca80
JB		 546/* Unbind from the console if possible */
547#define FB_EVENT_FB_UNBIND 0x0E
6a9ee8af
DA		 548/* CONSOLE-SPECIFIC: remap all consoles to new fb - for vga switcheroo */
549#define FB_EVENT_REMAP_ALL_CONSOLE 0x0F
1da177e4
LT		 550
551struct fb_event {
552 struct fb_info *info;
553 void *data;
554};
555
38a3dc51
AD		 556struct fb_blit_caps {
557 u32 x;
558 u32 y;
559 u32 len;
560 u32 flags;
561};
1da177e4
LT		 562
563extern int fb_register_client(struct notifier_block *nb);
564extern int fb_unregister_client(struct notifier_block *nb);
256154fb 565extern int fb_notifier_call_chain(unsigned long val, void *v);
1da177e4
LT		 566/*
567 * Pixmap structure definition
568 *
569 * The purpose of this structure is to translate data
570 * from the hardware independent format of fbdev to what
571 * format the hardware needs.
572 */
573
574#define FB_PIXMAP_DEFAULT 1 /* used internally by fbcon */
575#define FB_PIXMAP_SYSTEM 2 /* memory is in system RAM */
576#define FB_PIXMAP_IO 4 /* memory is iomapped */
577#define FB_PIXMAP_SYNC 256 /* set if GPU can DMA */
578
579struct fb_pixmap {
580 u8 *addr; /* pointer to memory */
581 u32 size; /* size of buffer in bytes */
582 u32 offset; /* current offset to buffer */
583 u32 buf_align; /* byte alignment of each bitmap */
584 u32 scan_align; /* alignment per scanline */
f5a9951c 585 u32 access_align; /* alignment per read/write (bits) */
1da177e4 586 u32 flags; /* see FB_PIXMAP_* */
bf26ad72
AD		 587 u32 blit_x; /* supported bit block dimensions (1-32)*/
588 u32 blit_y; /* Format: blit_x = 1 << (width - 1) */
589 /* blit_y = 1 << (height - 1) */
590 /* if 0, will be set to 0xffffffff (all)*/
1da177e4 591 /* access methods */
f5a9951c
JS		 592 void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size);
593 void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size);
1da177e4
LT		 594};
595
60b59bea
JK		 596#ifdef CONFIG_FB_DEFERRED_IO
597struct fb_deferred_io {
598 /* delay between mkwrite and deferred handler */
599 unsigned long delay;
600 struct mutex lock; /* mutex that protects the page list */
601 struct list_head pagelist; /* list of touched pages */
602 /* callback */
603 void (*deferred_io)(struct fb_info *info, struct list_head *pagelist);
604};
605#endif
1da177e4
LT		 606
607/*
608 * Frame buffer operations
609 *
610 * LOCKING NOTE: those functions must _ALL_ be called with the console
b3c2ffd5 611 * semaphore held, this is the only suitable locking mechanism we have
1da177e4 612 * in 2.6. Some may be called at interrupt time at this point though.
d219adc1
JB		 613 *
614 * The exception to this is the debug related hooks. Putting the fb
615 * into a debug state (e.g. flipping to the kernel console) and restoring
616 * it must be done in a lock-free manner, so low level drivers should
617 * keep track of the initial console (if applicable) and may need to
618 * perform direct, unlocked hardware writes in these hooks.
1da177e4
LT		 619 */
620
621struct fb_ops {
622 /* open/release and usage marking */
623 struct module *owner;
624 int (*fb_open)(struct fb_info *info, int user);
625 int (*fb_release)(struct fb_info *info, int user);
626
627 /* For framebuffers with strange non linear layouts or that do not
628 * work with normal memory mapped access
629 */
3f9b0880
AD		 630 ssize_t (*fb_read)(struct fb_info *info, char __user *buf,
631 size_t count, loff_t *ppos);
632 ssize_t (*fb_write)(struct fb_info *info, const char __user *buf,
633 size_t count, loff_t *ppos);
1da177e4
LT		 634
635 /* checks var and eventually tweaks it to something supported,
636 * DO NOT MODIFY PAR */
637 int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
638
639 /* set the video mode according to info->var */
640 int (*fb_set_par)(struct fb_info *info);
641
642 /* set color register */
643 int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green,
644 unsigned blue, unsigned transp, struct fb_info *info);
645
71494376
BH		 646 /* set color registers in batch */
647 int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info);
648
1da177e4
LT		 649 /* blank display */
650 int (*fb_blank)(int blank, struct fb_info *info);
651
652 /* pan display */
653 int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info);
654
655 /* Draws a rectangle */
656 void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);
657 /* Copy data from area to another */
658 void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);
659 /* Draws a image to the display */
660 void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
661
662 /* Draws cursor */
663 int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
664
665 /* Rotates the display */
666 void (*fb_rotate)(struct fb_info *info, int angle);
667
668 /* wait for blit idle, optional */
669 int (*fb_sync)(struct fb_info *info);
670
671 /* perform fb specific ioctl (optional) */
67a6680d
CH		 672 int (*fb_ioctl)(struct fb_info *info, unsigned int cmd,
673 unsigned long arg);
1da177e4
LT		 674
675 /* Handle 32bit compat ioctl (optional) */
67a6680d
CH		 676 int (*fb_compat_ioctl)(struct fb_info *info, unsigned cmd,
677 unsigned long arg);
1da177e4
LT		 678
679 /* perform fb specific mmap */
216d526c 680 int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma);
47434847 681
38a3dc51
AD		 682 /* get capability given var */
683 void (*fb_get_caps)(struct fb_info *info, struct fb_blit_caps *caps,
684 struct fb_var_screeninfo *var);
4410f391
DA		 685
686 /* teardown any resources to do with this framebuffer */
687 void (*fb_destroy)(struct fb_info *info);
d219adc1
JB		 688
689 /* called at KDB enter and leave time to prepare the console */
690 int (*fb_debug_enter)(struct fb_info *info);
691 int (*fb_debug_leave)(struct fb_info *info);
1da177e4
LT		 692};
693
694#ifdef CONFIG_FB_TILEBLITTING
1da177e4
LT		 695#define FB_TILE_CURSOR_NONE 0
696#define FB_TILE_CURSOR_UNDERLINE 1
697#define FB_TILE_CURSOR_LOWER_THIRD 2
698#define FB_TILE_CURSOR_LOWER_HALF 3
699#define FB_TILE_CURSOR_TWO_THIRDS 4
700#define FB_TILE_CURSOR_BLOCK 5
701
702struct fb_tilemap {
703 __u32 width; /* width of each tile in pixels */
704 __u32 height; /* height of each tile in scanlines */
705 __u32 depth; /* color depth of each tile */
706 __u32 length; /* number of tiles in the map */
2f4516db 707 const __u8 *data; /* actual tile map: a bitmap array, packed
1da177e4
LT		 708 to the nearest byte */
709};
710
711struct fb_tilerect {
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 index; /* what tile to use: index to tile map */
717 __u32 fg; /* foreground color */
718 __u32 bg; /* background color */
719 __u32 rop; /* raster operation */
720};
721
722struct fb_tilearea {
723 __u32 sx; /* source origin in the x-axis */
724 __u32 sy; /* source origin in the y-axis */
725 __u32 dx; /* destination origin in the x-axis */
726 __u32 dy; /* destination origin in the y-axis */
727 __u32 width; /* number of tiles in the x-axis */
728 __u32 height; /* number of tiles in the y-axis */
729};
730
731struct fb_tileblit {
732 __u32 sx; /* origin in the x-axis */
733 __u32 sy; /* origin in the y-axis */
734 __u32 width; /* number of tiles in the x-axis */
735 __u32 height; /* number of tiles in the y-axis */
736 __u32 fg; /* foreground color */
737 __u32 bg; /* background color */
738 __u32 length; /* number of tiles to draw */
739 __u32 *indices; /* array of indices to tile map */
740};
741
742struct fb_tilecursor {
743 __u32 sx; /* cursor position in the x-axis */
744 __u32 sy; /* cursor position in the y-axis */
745 __u32 mode; /* 0 = erase, 1 = draw */
746 __u32 shape; /* see FB_TILE_CURSOR_* */
747 __u32 fg; /* foreground color */
748 __u32 bg; /* background color */
749};
750
751struct fb_tile_ops {
752 /* set tile characteristics */
753 void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map);
754
755 /* all dimensions from hereon are in terms of tiles */
756
757 /* move a rectangular region of tiles from one area to another*/
758 void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area);
759 /* fill a rectangular region with a tile */
760 void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect);
761 /* copy an array of tiles */
762 void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit);
763 /* cursor */
764 void (*fb_tilecursor)(struct fb_info *info,
765 struct fb_tilecursor *cursor);
11f11d52
AD		 766 /* get maximum length of the tile map */
767 int (*fb_get_tilemax)(struct fb_info *info);
1da177e4
LT		 768};
769#endif /* CONFIG_FB_TILEBLITTING */
770
771/* FBINFO_* = fb_info.flags bit flags */
772#define FBINFO_MODULE 0x0001 /* Low-level driver is a module */
773#define FBINFO_HWACCEL_DISABLED 0x0002
774 /* When FBINFO_HWACCEL_DISABLED is set:
775 * Hardware acceleration is turned off. Software implementations
776 * of required functions (copyarea(), fillrect(), and imageblit())
777 * takes over; acceleration engine should be in a quiescent state */
778
779/* hints */
7164bb43 780#define FBINFO_VIRTFB 0x0004 /* FB is System RAM, not device. */
1da177e4
LT		 781#define FBINFO_PARTIAL_PAN_OK 0x0040 /* otw use pan only for double-buffering */
782#define FBINFO_READS_FAST 0x0080 /* soft-copy faster than rendering */
783
784/* hardware supported ops */
785/* semantics: when a bit is set, it indicates that the operation is
786 * accelerated by hardware.
787 * required functions will still work even if the bit is not set.
788 * optional functions may not even exist if the flag bit is not set.
789 */
790#define FBINFO_HWACCEL_NONE 0x0000
791#define FBINFO_HWACCEL_COPYAREA 0x0100 /* required */
792#define FBINFO_HWACCEL_FILLRECT 0x0200 /* required */
793#define FBINFO_HWACCEL_IMAGEBLIT 0x0400 /* required */
794#define FBINFO_HWACCEL_ROTATE 0x0800 /* optional */
795#define FBINFO_HWACCEL_XPAN 0x1000 /* optional */
796#define FBINFO_HWACCEL_YPAN 0x2000 /* optional */
797#define FBINFO_HWACCEL_YWRAP 0x4000 /* optional */
798
799#define FBINFO_MISC_USEREVENT 0x10000 /* event request
800 from userspace */
801#define FBINFO_MISC_TILEBLITTING 0x20000 /* use tile blitting */
802
39942fd8
KP		 803/* A driver may set this flag to indicate that it does want a set_par to be
804 * called every time when fbcon_switch is executed. The advantage is that with
7f927fcc 805 * this flag set you can really be sure that set_par is always called before
39942fd8
KP		 806 * any of the functions dependant on the correct hardware state or altering
807 * that state, even if you are using some broken X releases. The disadvantage
808 * is that it introduces unwanted delays to every console switch if set_par
809 * is slow. It is a good idea to try this flag in the drivers initialization
810 * code whenever there is a bug report related to switching between X and the
811 * framebuffer console.
812 */
813#define FBINFO_MISC_ALWAYS_SETPAR 0x40000
814
b26c9497
DA		 815/* where the fb is a firmware driver, and can be replaced with a proper one */
816#define FBINFO_MISC_FIRMWARE 0x80000
e4c690e0
AV		 817/*
818 * Host and GPU endianness differ.
819 */
820#define FBINFO_FOREIGN_ENDIAN 0x100000
821/*
822 * Big endian math. This is the same flags as above, but with different
823 * meaning, it is set by the fb subsystem depending FOREIGN_ENDIAN flag
824 * and host endianness. Drivers should not use this flag.
825 */
826#define FBINFO_BE_MATH 0x100000
827
8fd4bd22
JB		 828/* report to the VT layer that this fb driver can accept forced console
829 output like oopses */
830#define FBINFO_CAN_FORCE_OUTPUT 0x200000
831
1da177e4
LT		 832struct fb_info {
833 int node;
834 int flags;
3e680aae 835 struct mutex lock; /* Lock for open/release/ioctl funcs */
537a1bf0 836 struct mutex mm_lock; /* Lock for fb_mmap and smem_* fields */
1da177e4
LT		 837 struct fb_var_screeninfo var; /* Current var */
838 struct fb_fix_screeninfo fix; /* Current fix */
839 struct fb_monspecs monspecs; /* Current Monitor specs */
840 struct work_struct queue; /* Framebuffer event queue */
841 struct fb_pixmap pixmap; /* Image hardware mapper */
842 struct fb_pixmap sprite; /* Cursor hardware mapper */
843 struct fb_cmap cmap; /* Current cmap */
844 struct list_head modelist; /* mode list */
845 struct fb_videomode *mode; /* current mode */
5474c120
MH		 846
847#ifdef CONFIG_FB_BACKLIGHT
5474c120 848 /* assigned backlight device */
37ce69a5
RP		 849 /* set before framebuffer registration,
850 remove after unregister */
5474c120
MH		 851 struct backlight_device *bl_dev;
852
853 /* Backlight level curve */
37ce69a5 854 struct mutex bl_curve_mutex;
5474c120
MH		 855 u8 bl_curve[FB_BACKLIGHT_LEVELS];
856#endif
60b59bea
JK		 857#ifdef CONFIG_FB_DEFERRED_IO
858 struct delayed_work deferred_work;
859 struct fb_deferred_io *fbdefio;
860#endif
5474c120 861
1da177e4 862 struct fb_ops *fbops;
78cde088
GKH		 863 struct device *device; /* This is the parent */
864 struct device *dev; /* This is this fb device */
1a6600be 865 int class_flag; /* private sysfs flags */
1da177e4
LT		 866#ifdef CONFIG_FB_TILEBLITTING
867 struct fb_tile_ops *tileops; /* Tile Blitting */
868#endif
869 char __iomem *screen_base; /* Virtual address */
870 unsigned long screen_size; /* Amount of ioremapped VRAM or 0 */
871 void *pseudo_palette; /* Fake palette of 16 colors */
872#define FBINFO_STATE_RUNNING 0
873#define FBINFO_STATE_SUSPENDED 1
874 u32 state; /* Hardware state i.e suspend */
875 void *fbcon_par; /* fbcon use-only private area */
876 /* From here on everything is device dependent */
4410f391
DA		 877 void *par;
878 /* we need the PCI or similiar aperture base/size not
879 smem_start/size as smem_start may just be an object
880 allocated inside the aperture so may not actually overlap */
1471ca9a
MS		 881 struct apertures_struct {
882 unsigned int count;
883 struct aperture {
884 resource_size_t base;
885 resource_size_t size;
886 } ranges[0];
887 } *apertures;
1da177e4
LT		 888};
889
1471ca9a
MS		 890static inline struct apertures_struct *alloc_apertures(unsigned int max_num) {
891 struct apertures_struct *a = kzalloc(sizeof(struct apertures_struct)
892 + max_num * sizeof(struct aperture), GFP_KERNEL);
772a2f9b
DC		 893 if (!a)
894 return NULL;
1471ca9a
MS		 895 a->count = max_num;
896 return a;
897}
898
1da177e4
LT		 899#ifdef MODULE
900#define FBINFO_DEFAULT FBINFO_MODULE
901#else
902#define FBINFO_DEFAULT 0
903#endif
904
905// This will go away
906#define FBINFO_FLAG_MODULE FBINFO_MODULE
907#define FBINFO_FLAG_DEFAULT FBINFO_DEFAULT
908
909/* This will go away
910 * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags
911 * when it wants to turn the acceleration engine on. This is
912 * really a separate operation, and should be modified via sysfs.
913 * But for now, we leave it broken with the following define
914 */
915#define STUPID_ACCELF_TEXT_SHIT
916
917// This will go away
918#if defined(__sparc__)
919
920/* We map all of our framebuffers such that big-endian accesses
921 * are what we want, so the following is sufficient.
922 */
923
924// This will go away
925#define fb_readb sbus_readb
926#define fb_readw sbus_readw
927#define fb_readl sbus_readl
928#define fb_readq sbus_readq
929#define fb_writeb sbus_writeb
930#define fb_writew sbus_writew
931#define fb_writel sbus_writel
932#define fb_writeq sbus_writeq
933#define fb_memset sbus_memset_io
f11b478d
JH		 934#define fb_memcpy_fromfb sbus_memcpy_fromio
935#define fb_memcpy_tofb sbus_memcpy_toio
1da177e4 936
00115e66 937#elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || defined(__sh__) || defined(__powerpc__) || defined(__avr32__) || defined(__bfin__)
1da177e4
LT		 938
939#define fb_readb __raw_readb
940#define fb_readw __raw_readw
941#define fb_readl __raw_readl
942#define fb_readq __raw_readq
943#define fb_writeb __raw_writeb
944#define fb_writew __raw_writew
945#define fb_writel __raw_writel
946#define fb_writeq __raw_writeq
947#define fb_memset memset_io
f11b478d
JH		 948#define fb_memcpy_fromfb memcpy_fromio
949#define fb_memcpy_tofb memcpy_toio
1da177e4
LT		 950
951#else
952
953#define fb_readb(addr) (*(volatile u8 *) (addr))
954#define fb_readw(addr) (*(volatile u16 *) (addr))
955#define fb_readl(addr) (*(volatile u32 *) (addr))
956#define fb_readq(addr) (*(volatile u64 *) (addr))
957#define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
958#define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
959#define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
960#define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b))
961#define fb_memset memset
f11b478d
JH		 962#define fb_memcpy_fromfb memcpy
963#define fb_memcpy_tofb memcpy
1da177e4 964
be0d9b6c
AD		 965#endif
966
e4c690e0
AV		 967#define FB_LEFT_POS(p, bpp) (fb_be_math(p) ? (32 - (bpp)) : 0)
968#define FB_SHIFT_HIGH(p, val, bits) (fb_be_math(p) ? (val) >> (bits) : \
969 (val) << (bits))
970#define FB_SHIFT_LOW(p, val, bits) (fb_be_math(p) ? (val) << (bits) : \
971 (val) >> (bits))
1da177e4
LT		 972
973 /*
974 * `Generic' versions of the frame buffer device operations
975 */
976
977extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var);
978extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var);
979extern int fb_blank(struct fb_info *info, int blank);
1da177e4
LT		 980extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
981extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
982extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image);
68648ed1
AD		 983/*
984 * Drawing operations where framebuffer is in system RAM
985 */
986extern void sys_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
987extern void sys_copyarea(struct fb_info *info, const struct fb_copyarea *area);
988extern void sys_imageblit(struct fb_info *info, const struct fb_image *image);
09aaf268
AD		 989extern ssize_t fb_sys_read(struct fb_info *info, char __user *buf,
990 size_t count, loff_t *ppos);
991extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
992 size_t count, loff_t *ppos);
1da177e4
LT		 993
994/* drivers/video/fbmem.c */
995extern int register_framebuffer(struct fb_info *fb_info);
996extern int unregister_framebuffer(struct fb_info *fb_info);
3b9676e7
MS		 997extern void remove_conflicting_framebuffers(struct apertures_struct *a,
998 const char *name, bool primary);
9c44e5f6
AD		 999extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
1000extern int fb_show_logo(struct fb_info *fb_info, int rotate);
1da177e4 1001extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);
f1ab5dac 1002extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx,
1da177e4 1003 u32 height, u32 shift_high, u32 shift_low, u32 mod);
f1ab5dac 1004extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height);
1da177e4 1005extern void fb_set_suspend(struct fb_info *info, int state);
b8c90945
AD		 1006extern int fb_get_color_depth(struct fb_var_screeninfo *var,
1007 struct fb_fix_screeninfo *fix);
1da177e4
LT		 1008extern int fb_get_options(char *name, char **option);
1009extern int fb_new_modelist(struct fb_info *info);
1010
1011extern struct fb_info *registered_fb[FB_MAX];
1012extern int num_registered_fb;
9db71a18 1013extern struct class *fb_class;
1da177e4 1014
6a7f2829 1015extern int lock_fb_info(struct fb_info *info);
1f5e31d7
AR		 1016
1017static inline void unlock_fb_info(struct fb_info *info)
1018{
1019 mutex_unlock(&info->lock);
1020}
1021
829e79b6
AD		 1022static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch,
1023 u8 *src, u32 s_pitch, u32 height)
1024{
1025 int i, j;
1026
1027 d_pitch -= s_pitch;
1028
1029 for (i = height; i--; ) {
1030 /* s_pitch is a few bytes at the most, memcpy is suboptimal */
1031 for (j = 0; j < s_pitch; j++)
1032 *dst++ = *src++;
1033 dst += d_pitch;
1034 }
1035}
1036
60b59bea
JK		 1037/* drivers/video/fb_defio.c */
1038extern void fb_deferred_io_init(struct fb_info *info);
d847471d
IC		 1039extern void fb_deferred_io_open(struct fb_info *info,
1040 struct inode *inode,
1041 struct file *file);
60b59bea 1042extern void fb_deferred_io_cleanup(struct fb_info *info);
7ea80859 1043extern int fb_deferred_io_fsync(struct file *file, int datasync);
60b59bea 1044
e4c690e0
AV		 1045static inline bool fb_be_math(struct fb_info *info)
1046{
1047#ifdef CONFIG_FB_FOREIGN_ENDIAN
1048#if defined(CONFIG_FB_BOTH_ENDIAN)
1049 return info->flags & FBINFO_BE_MATH;
1050#elif defined(CONFIG_FB_BIG_ENDIAN)
1051 return true;
1052#elif defined(CONFIG_FB_LITTLE_ENDIAN)
1053 return false;
1054#endif /* CONFIG_FB_BOTH_ENDIAN */
1055#else
1056#ifdef __BIG_ENDIAN
1057 return true;
1058#else
1059 return false;
1060#endif /* __BIG_ENDIAN */
1061#endif /* CONFIG_FB_FOREIGN_ENDIAN */
1062}
1063
1da177e4
LT		 1064/* drivers/video/fbsysfs.c */
1065extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);
1066extern void framebuffer_release(struct fb_info *info);
78cde088
GKH		 1067extern int fb_init_device(struct fb_info *fb_info);
1068extern void fb_cleanup_device(struct fb_info *head);
5474c120 1069extern void fb_bl_default_curve(struct fb_info *fb_info, u8 off, u8 min, u8 max);
1da177e4
LT		 1070
1071/* drivers/video/fbmon.c */
1072#define FB_MAXTIMINGS 0
1073#define FB_VSYNCTIMINGS 1
1074#define FB_HSYNCTIMINGS 2
1075#define FB_DCLKTIMINGS 3
1076#define FB_IGNOREMON 0x100
1077
1078#define FB_MODE_IS_UNKNOWN 0
1079#define FB_MODE_IS_DETAILED 1
1080#define FB_MODE_IS_STANDARD 2
1081#define FB_MODE_IS_VESA 4
1082#define FB_MODE_IS_CALCULATED 8
1083#define FB_MODE_IS_FIRST 16
1084#define FB_MODE_IS_FROM_VAR 32
1085
1da177e4
LT		 1086extern int fbmon_dpms(const struct fb_info *fb_info);
1087extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var,
1088 struct fb_info *info);
1089extern int fb_validate_mode(const struct fb_var_screeninfo *var,
1090 struct fb_info *info);
1091extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);
5e518d76
AD		 1092extern const unsigned char *fb_firmware_edid(struct device *device);
1093extern void fb_edid_to_monspecs(unsigned char *edid,
1094 struct fb_monspecs *specs);
1da177e4 1095extern void fb_destroy_modedb(struct fb_videomode *modedb);
96fe6a21 1096extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb);
fc5891c8 1097extern unsigned char *fb_ddc_read(struct i2c_adapter *adapter);
1da177e4
LT		 1098
1099/* drivers/video/modedb.c */
1100#define VESA_MODEDB_SIZE 34
1101extern void fb_var_to_videomode(struct fb_videomode *mode,
9791d763 1102 const struct fb_var_screeninfo *var);
1da177e4 1103extern void fb_videomode_to_var(struct fb_var_screeninfo *var,
9791d763
GU		 1104 const struct fb_videomode *mode);
1105extern int fb_mode_is_equal(const struct fb_videomode *mode1,
1106 const struct fb_videomode *mode2);
1107extern int fb_add_videomode(const struct fb_videomode *mode,
1108 struct list_head *head);
1109extern void fb_delete_videomode(const struct fb_videomode *mode,
1da177e4 1110 struct list_head *head);
9791d763
GU		 1111extern const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var,
1112 struct list_head *head);
1113extern const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var,
1114 struct list_head *head);
1115extern const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode,
1116 struct list_head *head);
1da177e4 1117extern void fb_destroy_modelist(struct list_head *head);
9791d763 1118extern void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num,
1da177e4 1119 struct list_head *head);
9791d763
GU		 1120extern const struct fb_videomode *fb_find_best_display(const struct fb_monspecs *specs,
1121 struct list_head *head);
1da177e4
LT		 1122
1123/* drivers/video/fbcmap.c */
1124extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);
1125extern void fb_dealloc_cmap(struct fb_cmap *cmap);
adf6b206
HD		 1126extern int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to);
1127extern int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to);
1da177e4
LT		 1128extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info);
1129extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info);
adf6b206 1130extern const struct fb_cmap *fb_default_cmap(int len);
1da177e4
LT		 1131extern void fb_invert_cmaps(void);
1132
1133struct fb_videomode {
1134 const char *name; /* optional */
1135 u32 refresh; /* optional */
1136 u32 xres;
1137 u32 yres;
1138 u32 pixclock;
1139 u32 left_margin;
1140 u32 right_margin;
1141 u32 upper_margin;
1142 u32 lower_margin;
1143 u32 hsync_len;
1144 u32 vsync_len;
1145 u32 sync;
1146 u32 vmode;
1147 u32 flag;
1148};
1149
9a054fba 1150extern const char *fb_mode_option;
1da177e4
LT		 1151extern const struct fb_videomode vesa_modes[];
1152
1153struct fb_modelist {
1154 struct list_head list;
1155 struct fb_videomode mode;
1156};
1157
1158extern int fb_find_mode(struct fb_var_screeninfo *var,
1159 struct fb_info *info, const char *mode_option,
1160 const struct fb_videomode *db,
1161 unsigned int dbsize,
1162 const struct fb_videomode *default_mode,
1163 unsigned int default_bpp);
1164
1165#endif /* __KERNEL__ */
1166
1167#endif /* _LINUX_FB_H */
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