tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef _LINUX_FB_H
2#define _LINUX_FB_H
3
4#include <linux/types.h>
5#include <linux/i2c.h>
6
7struct dentry;
8
9/* Definitions of frame buffers */
10
11#define FB_MAX 32 /* sufficient for now */
12
13/* ioctls
14 0x46 is 'F' */
15#define FBIOGET_VSCREENINFO 0x4600
16#define FBIOPUT_VSCREENINFO 0x4601
17#define FBIOGET_FSCREENINFO 0x4602
18#define FBIOGETCMAP 0x4604
19#define FBIOPUTCMAP 0x4605
20#define FBIOPAN_DISPLAY 0x4606
21#ifdef __KERNEL__
22#define FBIO_CURSOR _IOWR('F', 0x08, struct fb_cursor_user)
23#else
24#define FBIO_CURSOR _IOWR('F', 0x08, struct fb_cursor)
25#endif
26/* 0x4607-0x460B are defined below */
27/* #define FBIOGET_MONITORSPEC 0x460C */
28/* #define FBIOPUT_MONITORSPEC 0x460D */
29/* #define FBIOSWITCH_MONIBIT 0x460E */
30#define FBIOGET_CON2FBMAP 0x460F
31#define FBIOPUT_CON2FBMAP 0x4610
32#define FBIOBLANK 0x4611 /* arg: 0 or vesa level + 1 */
33#define FBIOGET_VBLANK _IOR('F', 0x12, struct fb_vblank)
34#define FBIO_ALLOC 0x4613
35#define FBIO_FREE 0x4614
36#define FBIOGET_GLYPH 0x4615
37#define FBIOGET_HWCINFO 0x4616
38#define FBIOPUT_MODEINFO 0x4617
39#define FBIOGET_DISPINFO 0x4618
40#define FBIO_WAITFORVSYNC _IOW('F', 0x20, __u32)
41
42#define FB_TYPE_PACKED_PIXELS 0 /* Packed Pixels */
43#define FB_TYPE_PLANES 1 /* Non interleaved planes */
44#define FB_TYPE_INTERLEAVED_PLANES 2 /* Interleaved planes */
45#define FB_TYPE_TEXT 3 /* Text/attributes */
46#define FB_TYPE_VGA_PLANES 4 /* EGA/VGA planes */
47
48#define FB_AUX_TEXT_MDA 0 /* Monochrome text */
49#define FB_AUX_TEXT_CGA 1 /* CGA/EGA/VGA Color text */
50#define FB_AUX_TEXT_S3_MMIO 2 /* S3 MMIO fasttext */
51#define FB_AUX_TEXT_MGA_STEP16 3 /* MGA Millenium I: text, attr, 14 reserved bytes */
52#define FB_AUX_TEXT_MGA_STEP8 4 /* other MGAs: text, attr, 6 reserved bytes */
53#define FB_AUX_TEXT_SVGA_GROUP 8 /* 8-15: SVGA tileblit compatible modes */
54#define FB_AUX_TEXT_SVGA_MASK 7 /* lower three bits says step */
55#define FB_AUX_TEXT_SVGA_STEP2 8 /* SVGA text mode: text, attr */
56#define FB_AUX_TEXT_SVGA_STEP4 9 /* SVGA text mode: text, attr, 2 reserved bytes */
57#define FB_AUX_TEXT_SVGA_STEP8 10 /* SVGA text mode: text, attr, 6 reserved bytes */
58#define FB_AUX_TEXT_SVGA_STEP16 11 /* SVGA text mode: text, attr, 14 reserved bytes */
59#define FB_AUX_TEXT_SVGA_LAST 15 /* reserved up to 15 */
60
61#define FB_AUX_VGA_PLANES_VGA4 0 /* 16 color planes (EGA/VGA) */
62#define FB_AUX_VGA_PLANES_CFB4 1 /* CFB4 in planes (VGA) */
63#define FB_AUX_VGA_PLANES_CFB8 2 /* CFB8 in planes (VGA) */
64
65#define FB_VISUAL_MONO01 0 /* Monochr. 1=Black 0=White */
66#define FB_VISUAL_MONO10 1 /* Monochr. 1=White 0=Black */
67#define FB_VISUAL_TRUECOLOR 2 /* True color */
68#define FB_VISUAL_PSEUDOCOLOR 3 /* Pseudo color (like atari) */
69#define FB_VISUAL_DIRECTCOLOR 4 /* Direct color */
70#define FB_VISUAL_STATIC_PSEUDOCOLOR 5 /* Pseudo color readonly */
71
72#define FB_ACCEL_NONE 0 /* no hardware accelerator */
73#define FB_ACCEL_ATARIBLITT 1 /* Atari Blitter */
74#define FB_ACCEL_AMIGABLITT 2 /* Amiga Blitter */
75#define FB_ACCEL_S3_TRIO64 3 /* Cybervision64 (S3 Trio64) */
76#define FB_ACCEL_NCR_77C32BLT 4 /* RetinaZ3 (NCR 77C32BLT) */
77#define FB_ACCEL_S3_VIRGE 5 /* Cybervision64/3D (S3 ViRGE) */
78#define FB_ACCEL_ATI_MACH64GX 6 /* ATI Mach 64GX family */
79#define FB_ACCEL_DEC_TGA 7 /* DEC 21030 TGA */
80#define FB_ACCEL_ATI_MACH64CT 8 /* ATI Mach 64CT family */
81#define FB_ACCEL_ATI_MACH64VT 9 /* ATI Mach 64CT family VT class */
82#define FB_ACCEL_ATI_MACH64GT 10 /* ATI Mach 64CT family GT class */
83#define FB_ACCEL_SUN_CREATOR 11 /* Sun Creator/Creator3D */
84#define FB_ACCEL_SUN_CGSIX 12 /* Sun cg6 */
85#define FB_ACCEL_SUN_LEO 13 /* Sun leo/zx */
86#define FB_ACCEL_IMS_TWINTURBO 14 /* IMS Twin Turbo */
87#define FB_ACCEL_3DLABS_PERMEDIA2 15 /* 3Dlabs Permedia 2 */
88#define FB_ACCEL_MATROX_MGA2064W 16 /* Matrox MGA2064W (Millenium) */
89#define FB_ACCEL_MATROX_MGA1064SG 17 /* Matrox MGA1064SG (Mystique) */
90#define FB_ACCEL_MATROX_MGA2164W 18 /* Matrox MGA2164W (Millenium II) */
91#define FB_ACCEL_MATROX_MGA2164W_AGP 19 /* Matrox MGA2164W (Millenium II) */
92#define FB_ACCEL_MATROX_MGAG100 20 /* Matrox G100 (Productiva G100) */
93#define FB_ACCEL_MATROX_MGAG200 21 /* Matrox G200 (Myst, Mill, ...) */
94#define FB_ACCEL_SUN_CG14 22 /* Sun cgfourteen */
95#define FB_ACCEL_SUN_BWTWO 23 /* Sun bwtwo */
96#define FB_ACCEL_SUN_CGTHREE 24 /* Sun cgthree */
97#define FB_ACCEL_SUN_TCX 25 /* Sun tcx */
98#define FB_ACCEL_MATROX_MGAG400 26 /* Matrox G400 */
99#define FB_ACCEL_NV3 27 /* nVidia RIVA 128 */
100#define FB_ACCEL_NV4 28 /* nVidia RIVA TNT */
101#define FB_ACCEL_NV5 29 /* nVidia RIVA TNT2 */
102#define FB_ACCEL_CT_6555x 30 /* C&T 6555x */
103#define FB_ACCEL_3DFX_BANSHEE 31 /* 3Dfx Banshee */
104#define FB_ACCEL_ATI_RAGE128 32 /* ATI Rage128 family */
105#define FB_ACCEL_IGS_CYBER2000 33 /* CyberPro 2000 */
106#define FB_ACCEL_IGS_CYBER2010 34 /* CyberPro 2010 */
107#define FB_ACCEL_IGS_CYBER5000 35 /* CyberPro 5000 */
108#define FB_ACCEL_SIS_GLAMOUR 36 /* SiS 300/630/540 */
109#define FB_ACCEL_3DLABS_PERMEDIA3 37 /* 3Dlabs Permedia 3 */
110#define FB_ACCEL_ATI_RADEON 38 /* ATI Radeon family */
111#define FB_ACCEL_I810 39 /* Intel 810/815 */
112#define FB_ACCEL_SIS_GLAMOUR_2 40 /* SiS 315, 650, 740 */
113#define FB_ACCEL_SIS_XABRE 41 /* SiS 330 ("Xabre") */
114#define FB_ACCEL_I830 42 /* Intel 830M/845G/85x/865G */
115#define FB_ACCEL_NV_10 43 /* nVidia Arch 10 */
116#define FB_ACCEL_NV_20 44 /* nVidia Arch 20 */
117#define FB_ACCEL_NV_30 45 /* nVidia Arch 30 */
118#define FB_ACCEL_NV_40 46 /* nVidia Arch 40 */
119#define FB_ACCEL_XGI_VOLARI_V 47 /* XGI Volari V3XT, V5, V8 */
120#define FB_ACCEL_XGI_VOLARI_Z 48 /* XGI Volari Z7 */
121#define FB_ACCEL_OMAP1610 49 /* TI OMAP16xx */
122#define FB_ACCEL_TRIDENT_TGUI 50 /* Trident TGUI */
123#define FB_ACCEL_TRIDENT_3DIMAGE 51 /* Trident 3DImage */
124#define FB_ACCEL_TRIDENT_BLADE3D 52 /* Trident Blade3D */
125#define FB_ACCEL_TRIDENT_BLADEXP 53 /* Trident BladeXP */
126#define FB_ACCEL_CIRRUS_ALPINE 53 /* Cirrus Logic 543x/544x/5480 */
127#define FB_ACCEL_NEOMAGIC_NM2070 90 /* NeoMagic NM2070 */
128#define FB_ACCEL_NEOMAGIC_NM2090 91 /* NeoMagic NM2090 */
129#define FB_ACCEL_NEOMAGIC_NM2093 92 /* NeoMagic NM2093 */
130#define FB_ACCEL_NEOMAGIC_NM2097 93 /* NeoMagic NM2097 */
131#define FB_ACCEL_NEOMAGIC_NM2160 94 /* NeoMagic NM2160 */
132#define FB_ACCEL_NEOMAGIC_NM2200 95 /* NeoMagic NM2200 */
133#define FB_ACCEL_NEOMAGIC_NM2230 96 /* NeoMagic NM2230 */
134#define FB_ACCEL_NEOMAGIC_NM2360 97 /* NeoMagic NM2360 */
135#define FB_ACCEL_NEOMAGIC_NM2380 98 /* NeoMagic NM2380 */
136#define FB_ACCEL_PXA3XX 99 /* PXA3xx */
137
138#define FB_ACCEL_SAVAGE4 0x80 /* S3 Savage4 */
139#define FB_ACCEL_SAVAGE3D 0x81 /* S3 Savage3D */
140#define FB_ACCEL_SAVAGE3D_MV 0x82 /* S3 Savage3D-MV */
141#define FB_ACCEL_SAVAGE2000 0x83 /* S3 Savage2000 */
142#define FB_ACCEL_SAVAGE_MX_MV 0x84 /* S3 Savage/MX-MV */
143#define FB_ACCEL_SAVAGE_MX 0x85 /* S3 Savage/MX */
144#define FB_ACCEL_SAVAGE_IX_MV 0x86 /* S3 Savage/IX-MV */
145#define FB_ACCEL_SAVAGE_IX 0x87 /* S3 Savage/IX */
146#define FB_ACCEL_PROSAVAGE_PM 0x88 /* S3 ProSavage PM133 */
147#define FB_ACCEL_PROSAVAGE_KM 0x89 /* S3 ProSavage KM133 */
148#define FB_ACCEL_S3TWISTER_P 0x8a /* S3 Twister */
149#define FB_ACCEL_S3TWISTER_K 0x8b /* S3 TwisterK */
150#define FB_ACCEL_SUPERSAVAGE 0x8c /* S3 Supersavage */
151#define FB_ACCEL_PROSAVAGE_DDR 0x8d /* S3 ProSavage DDR */
152#define FB_ACCEL_PROSAVAGE_DDRK 0x8e /* S3 ProSavage DDR-K */
153
154struct fb_fix_screeninfo {
155 char id[16]; /* identification string eg "TT Builtin" */
156 unsigned long smem_start; /* Start of frame buffer mem */
157 /* (physical address) */
158 __u32 smem_len; /* Length of frame buffer mem */
159 __u32 type; /* see FB_TYPE_* */
160 __u32 type_aux; /* Interleave for interleaved Planes */
161 __u32 visual; /* see FB_VISUAL_* */
162 __u16 xpanstep; /* zero if no hardware panning */
163 __u16 ypanstep; /* zero if no hardware panning */
164 __u16 ywrapstep; /* zero if no hardware ywrap */
165 __u32 line_length; /* length of a line in bytes */
166 unsigned long mmio_start; /* Start of Memory Mapped I/O */
167 /* (physical address) */
168 __u32 mmio_len; /* Length of Memory Mapped I/O */
169 __u32 accel; /* Indicate to driver which */
170 /* specific chip/card we have */
171 __u16 reserved[3]; /* Reserved for future compatibility */
172};
173
174/* Interpretation of offset for color fields: All offsets are from the right,
175 * inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
176 * can use the offset as right argument to <<). A pixel afterwards is a bit
177 * stream and is written to video memory as that unmodified.
178 *
179 * For pseudocolor: offset and length should be the same for all color
180 * components. Offset specifies the position of the least significant bit
181 * of the pallette index in a pixel value. Length indicates the number
182 * of available palette entries (i.e. # of entries = 1 << length).
183 */
184struct fb_bitfield {
185 __u32 offset; /* beginning of bitfield */
186 __u32 length; /* length of bitfield */
187 __u32 msb_right; /* != 0 : Most significant bit is */
188 /* right */
189};
190
191#define FB_NONSTD_HAM 1 /* Hold-And-Modify (HAM) */
192#define FB_NONSTD_REV_PIX_IN_B 2 /* order of pixels in each byte is reversed */
193
194#define FB_ACTIVATE_NOW 0 /* set values immediately (or vbl)*/
195#define FB_ACTIVATE_NXTOPEN 1 /* activate on next open */
196#define FB_ACTIVATE_TEST 2 /* don't set, round up impossible */
197#define FB_ACTIVATE_MASK 15
198 /* values */
199#define FB_ACTIVATE_VBL 16 /* activate values on next vbl */
200#define FB_CHANGE_CMAP_VBL 32 /* change colormap on vbl */
201#define FB_ACTIVATE_ALL 64 /* change all VCs on this fb */
202#define FB_ACTIVATE_FORCE 128 /* force apply even when no change*/
203#define FB_ACTIVATE_INV_MODE 256 /* invalidate videomode */
204
205#define FB_ACCELF_TEXT 1 /* (OBSOLETE) see fb_info.flags and vc_mode */
206
207#define FB_SYNC_HOR_HIGH_ACT 1 /* horizontal sync high active */
208#define FB_SYNC_VERT_HIGH_ACT 2 /* vertical sync high active */
209#define FB_SYNC_EXT 4 /* external sync */
210#define FB_SYNC_COMP_HIGH_ACT 8 /* composite sync high active */
211#define FB_SYNC_BROADCAST 16 /* broadcast video timings */
212 /* vtotal = 144d/288n/576i => PAL */
213 /* vtotal = 121d/242n/484i => NTSC */
214#define FB_SYNC_ON_GREEN 32 /* sync on green */
215
216#define FB_VMODE_NONINTERLACED 0 /* non interlaced */
217#define FB_VMODE_INTERLACED 1 /* interlaced */
218#define FB_VMODE_DOUBLE 2 /* double scan */
219#define FB_VMODE_ODD_FLD_FIRST 4 /* interlaced: top line first */
220#define FB_VMODE_MASK 255
221
222#define FB_VMODE_YWRAP 256 /* ywrap instead of panning */
223#define FB_VMODE_SMOOTH_XPAN 512 /* smooth xpan possible (internally used) */
224#define FB_VMODE_CONUPDATE 512 /* don't update x/yoffset */
225
226/*
227 * Display rotation support
228 */
229#define FB_ROTATE_UR 0
230#define FB_ROTATE_CW 1
231#define FB_ROTATE_UD 2
232#define FB_ROTATE_CCW 3
233
234#define PICOS2KHZ(a) (1000000000UL/(a))
235#define KHZ2PICOS(a) (1000000000UL/(a))
236
237struct fb_var_screeninfo {
238 __u32 xres; /* visible resolution */
239 __u32 yres;
240 __u32 xres_virtual; /* virtual resolution */
241 __u32 yres_virtual;
242 __u32 xoffset; /* offset from virtual to visible */
243 __u32 yoffset; /* resolution */
244
245 __u32 bits_per_pixel; /* guess what */
246 __u32 grayscale; /* != 0 Graylevels instead of colors */
247
248 struct fb_bitfield red; /* bitfield in fb mem if true color, */
249 struct fb_bitfield green; /* else only length is significant */
250 struct fb_bitfield blue;
251 struct fb_bitfield transp; /* transparency */
252
253 __u32 nonstd; /* != 0 Non standard pixel format */
254
255 __u32 activate; /* see FB_ACTIVATE_* */
256
257 __u32 height; /* height of picture in mm */
258 __u32 width; /* width of picture in mm */
259
260 __u32 accel_flags; /* (OBSOLETE) see fb_info.flags */
261
262 /* Timing: All values in pixclocks, except pixclock (of course) */
263 __u32 pixclock; /* pixel clock in ps (pico seconds) */
264 __u32 left_margin; /* time from sync to picture */
265 __u32 right_margin; /* time from picture to sync */
266 __u32 upper_margin; /* time from sync to picture */
267 __u32 lower_margin;
268 __u32 hsync_len; /* length of horizontal sync */
269 __u32 vsync_len; /* length of vertical sync */
270 __u32 sync; /* see FB_SYNC_* */
271 __u32 vmode; /* see FB_VMODE_* */
272 __u32 rotate; /* angle we rotate counter clockwise */
273 __u32 reserved[5]; /* Reserved for future compatibility */
274};
275
276struct fb_cmap {
277 __u32 start; /* First entry */
278 __u32 len; /* Number of entries */
279 __u16 *red; /* Red values */
280 __u16 *green;
281 __u16 *blue;
282 __u16 *transp; /* transparency, can be NULL */
283};
284
285struct fb_con2fbmap {
286 __u32 console;
287 __u32 framebuffer;
288};
289
290/* VESA Blanking Levels */
291#define VESA_NO_BLANKING 0
292#define VESA_VSYNC_SUSPEND 1
293#define VESA_HSYNC_SUSPEND 2
294#define VESA_POWERDOWN 3
295
296
297enum {
298 /* screen: unblanked, hsync: on, vsync: on */
299 FB_BLANK_UNBLANK = VESA_NO_BLANKING,
300
301 /* screen: blanked, hsync: on, vsync: on */
302 FB_BLANK_NORMAL = VESA_NO_BLANKING + 1,
303
304 /* screen: blanked, hsync: on, vsync: off */
305 FB_BLANK_VSYNC_SUSPEND = VESA_VSYNC_SUSPEND + 1,
306
307 /* screen: blanked, hsync: off, vsync: on */
308 FB_BLANK_HSYNC_SUSPEND = VESA_HSYNC_SUSPEND + 1,
309
310 /* screen: blanked, hsync: off, vsync: off */
311 FB_BLANK_POWERDOWN = VESA_POWERDOWN + 1
312};
313
314#define FB_VBLANK_VBLANKING 0x001 /* currently in a vertical blank */
315#define FB_VBLANK_HBLANKING 0x002 /* currently in a horizontal blank */
316#define FB_VBLANK_HAVE_VBLANK 0x004 /* vertical blanks can be detected */
317#define FB_VBLANK_HAVE_HBLANK 0x008 /* horizontal blanks can be detected */
318#define FB_VBLANK_HAVE_COUNT 0x010 /* global retrace counter is available */
319#define FB_VBLANK_HAVE_VCOUNT 0x020 /* the vcount field is valid */
320#define FB_VBLANK_HAVE_HCOUNT 0x040 /* the hcount field is valid */
321#define FB_VBLANK_VSYNCING 0x080 /* currently in a vsync */
322#define FB_VBLANK_HAVE_VSYNC 0x100 /* verical syncs can be detected */
323
324struct fb_vblank {
325 __u32 flags; /* FB_VBLANK flags */
326 __u32 count; /* counter of retraces since boot */
327 __u32 vcount; /* current scanline position */
328 __u32 hcount; /* current scandot position */
329 __u32 reserved[4]; /* reserved for future compatibility */
330};
331
332/* Internal HW accel */
333#define ROP_COPY 0
334#define ROP_XOR 1
335
336struct fb_copyarea {
337 __u32 dx;
338 __u32 dy;
339 __u32 width;
340 __u32 height;
341 __u32 sx;
342 __u32 sy;
343};
344
345struct fb_fillrect {
346 __u32 dx; /* screen-relative */
347 __u32 dy;
348 __u32 width;
349 __u32 height;
350 __u32 color;
351 __u32 rop;
352};
353
354struct fb_image {
355 __u32 dx; /* Where to place image */
356 __u32 dy;
357 __u32 width; /* Size of image */
358 __u32 height;
359 __u32 fg_color; /* Only used when a mono bitmap */
360 __u32 bg_color;
361 __u8 depth; /* Depth of the image */
362 const char *data; /* Pointer to image data */
363 struct fb_cmap cmap; /* color map info */
364};
365
366/*
367 * hardware cursor control
368 */
369
370#define FB_CUR_SETIMAGE 0x01
371#define FB_CUR_SETPOS 0x02
372#define FB_CUR_SETHOT 0x04
373#define FB_CUR_SETCMAP 0x08
374#define FB_CUR_SETSHAPE 0x10
375#define FB_CUR_SETSIZE 0x20
376#define FB_CUR_SETALL 0xFF
377
378struct fbcurpos {
379 __u16 x, y;
380};
381
382struct fb_cursor {
383 __u16 set; /* what to set */
384 __u16 enable; /* cursor on/off */
385 __u16 rop; /* bitop operation */
386 const char *mask; /* cursor mask bits */
387 struct fbcurpos hot; /* cursor hot spot */
388 struct fb_image image; /* Cursor image */
389};
390
391#ifdef CONFIG_FB_BACKLIGHT
392/* Settings for the generic backlight code */
393#define FB_BACKLIGHT_LEVELS 128
394#define FB_BACKLIGHT_MAX 0xFF
395#endif
396
397#ifdef __KERNEL__
398
399#include <linux/fs.h>
400#include <linux/init.h>
401#include <linux/device.h>
402#include <linux/workqueue.h>
403#include <linux/notifier.h>
404#include <linux/list.h>
405#include <linux/backlight.h>
406#include <linux/slab.h>
407#include <asm/io.h>
408
409struct vm_area_struct;
410struct fb_info;
411struct device;
412struct file;
413
414/* Definitions below are used in the parsed monitor specs */
415#define FB_DPMS_ACTIVE_OFF 1
416#define FB_DPMS_SUSPEND 2
417#define FB_DPMS_STANDBY 4
418
419#define FB_DISP_DDI 1
420#define FB_DISP_ANA_700_300 2
421#define FB_DISP_ANA_714_286 4
422#define FB_DISP_ANA_1000_400 8
423#define FB_DISP_ANA_700_000 16
424
425#define FB_DISP_MONO 32
426#define FB_DISP_RGB 64
427#define FB_DISP_MULTI 128
428#define FB_DISP_UNKNOWN 256
429
430#define FB_SIGNAL_NONE 0
431#define FB_SIGNAL_BLANK_BLANK 1
432#define FB_SIGNAL_SEPARATE 2
433#define FB_SIGNAL_COMPOSITE 4
434#define FB_SIGNAL_SYNC_ON_GREEN 8
435#define FB_SIGNAL_SERRATION_ON 16
436
437#define FB_MISC_PRIM_COLOR 1
438#define FB_MISC_1ST_DETAIL 2 /* First Detailed Timing is preferred */
439struct fb_chroma {
440 __u32 redx; /* in fraction of 1024 */
441 __u32 greenx;
442 __u32 bluex;
443 __u32 whitex;
444 __u32 redy;
445 __u32 greeny;
446 __u32 bluey;
447 __u32 whitey;
448};
449
450struct fb_monspecs {
451 struct fb_chroma chroma;
452 struct fb_videomode *modedb; /* mode database */
453 __u8 manufacturer[4]; /* Manufacturer */
454 __u8 monitor[14]; /* Monitor String */
455 __u8 serial_no[14]; /* Serial Number */
456 __u8 ascii[14]; /* ? */
457 __u32 modedb_len; /* mode database length */
458 __u32 model; /* Monitor Model */
459 __u32 serial; /* Serial Number - Integer */
460 __u32 year; /* Year manufactured */
461 __u32 week; /* Week Manufactured */
462 __u32 hfmin; /* hfreq lower limit (Hz) */
463 __u32 hfmax; /* hfreq upper limit (Hz) */
464 __u32 dclkmin; /* pixelclock lower limit (Hz) */
465 __u32 dclkmax; /* pixelclock upper limit (Hz) */
466 __u16 input; /* display type - see FB_DISP_* */
467 __u16 dpms; /* DPMS support - see FB_DPMS_ */
468 __u16 signal; /* Signal Type - see FB_SIGNAL_* */
469 __u16 vfmin; /* vfreq lower limit (Hz) */
470 __u16 vfmax; /* vfreq upper limit (Hz) */
471 __u16 gamma; /* Gamma - in fractions of 100 */
472 __u16 gtf : 1; /* supports GTF */
473 __u16 misc; /* Misc flags - see FB_MISC_* */
474 __u8 version; /* EDID version... */
475 __u8 revision; /* ...and revision */
476 __u8 max_x; /* Maximum horizontal size (cm) */
477 __u8 max_y; /* Maximum vertical size (cm) */
478};
479
480struct fb_cmap_user {
481 __u32 start; /* First entry */
482 __u32 len; /* Number of entries */
483 __u16 __user *red; /* Red values */
484 __u16 __user *green;
485 __u16 __user *blue;
486 __u16 __user *transp; /* transparency, can be NULL */
487};
488
489struct fb_image_user {
490 __u32 dx; /* Where to place image */
491 __u32 dy;
492 __u32 width; /* Size of image */
493 __u32 height;
494 __u32 fg_color; /* Only used when a mono bitmap */
495 __u32 bg_color;
496 __u8 depth; /* Depth of the image */
497 const char __user *data; /* Pointer to image data */
498 struct fb_cmap_user cmap; /* color map info */
499};
500
501struct fb_cursor_user {
502 __u16 set; /* what to set */
503 __u16 enable; /* cursor on/off */
504 __u16 rop; /* bitop operation */
505 const char __user *mask; /* cursor mask bits */
506 struct fbcurpos hot; /* cursor hot spot */
507 struct fb_image_user image; /* Cursor image */
508};
509
510/*
511 * Register/unregister for framebuffer events
512 */
513
514/* The resolution of the passed in fb_info about to change */
515#define FB_EVENT_MODE_CHANGE 0x01
516/* The display on this fb_info is beeing suspended, no access to the
517 * framebuffer is allowed any more after that call returns
518 */
519#define FB_EVENT_SUSPEND 0x02
520/* The display on this fb_info was resumed, you can restore the display
521 * if you own it
522 */
523#define FB_EVENT_RESUME 0x03
524/* An entry from the modelist was removed */
525#define FB_EVENT_MODE_DELETE 0x04
526/* A driver registered itself */
527#define FB_EVENT_FB_REGISTERED 0x05
528/* A driver unregistered itself */
529#define FB_EVENT_FB_UNREGISTERED 0x06
530/* CONSOLE-SPECIFIC: get console to framebuffer mapping */
531#define FB_EVENT_GET_CONSOLE_MAP 0x07
532/* CONSOLE-SPECIFIC: set console to framebuffer mapping */
533#define FB_EVENT_SET_CONSOLE_MAP 0x08
534/* A hardware display blank change occured */
535#define FB_EVENT_BLANK 0x09
536/* Private modelist is to be replaced */
537#define FB_EVENT_NEW_MODELIST 0x0A
538/* The resolution of the passed in fb_info about to change and
539 all vc's should be changed */
540#define FB_EVENT_MODE_CHANGE_ALL 0x0B
541/* A software display blank change occured */
542#define FB_EVENT_CONBLANK 0x0C
543/* Get drawing requirements */
544#define FB_EVENT_GET_REQ 0x0D
545/* Unbind from the console if possible */
546#define FB_EVENT_FB_UNBIND 0x0E
547/* CONSOLE-SPECIFIC: remap all consoles to new fb - for vga switcheroo */
548#define FB_EVENT_REMAP_ALL_CONSOLE 0x0F
549
550struct fb_event {
551 struct fb_info *info;
552 void *data;
553};
554
555struct fb_blit_caps {
556 u32 x;
557 u32 y;
558 u32 len;
559 u32 flags;
560};
561
562extern int fb_register_client(struct notifier_block *nb);
563extern int fb_unregister_client(struct notifier_block *nb);
564extern int fb_notifier_call_chain(unsigned long val, void *v);
565/*
566 * Pixmap structure definition
567 *
568 * The purpose of this structure is to translate data
569 * from the hardware independent format of fbdev to what
570 * format the hardware needs.
571 */
572
573#define FB_PIXMAP_DEFAULT 1 /* used internally by fbcon */
574#define FB_PIXMAP_SYSTEM 2 /* memory is in system RAM */
575#define FB_PIXMAP_IO 4 /* memory is iomapped */
576#define FB_PIXMAP_SYNC 256 /* set if GPU can DMA */
577
578struct fb_pixmap {
579 u8 *addr; /* pointer to memory */
580 u32 size; /* size of buffer in bytes */
581 u32 offset; /* current offset to buffer */
582 u32 buf_align; /* byte alignment of each bitmap */
583 u32 scan_align; /* alignment per scanline */
584 u32 access_align; /* alignment per read/write (bits) */
585 u32 flags; /* see FB_PIXMAP_* */
586 u32 blit_x; /* supported bit block dimensions (1-32)*/
587 u32 blit_y; /* Format: blit_x = 1 << (width - 1) */
588 /* blit_y = 1 << (height - 1) */
589 /* if 0, will be set to 0xffffffff (all)*/
590 /* access methods */
591 void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size);
592 void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size);
593};
594
595#ifdef CONFIG_FB_DEFERRED_IO
596struct fb_deferred_io {
597 /* delay between mkwrite and deferred handler */
598 unsigned long delay;
599 struct mutex lock; /* mutex that protects the page list */
600 struct list_head pagelist; /* list of touched pages */
601 /* callback */
602 void (*deferred_io)(struct fb_info *info, struct list_head *pagelist);
603};
604#endif
605
606/*
607 * Frame buffer operations
608 *
609 * LOCKING NOTE: those functions must _ALL_ be called with the console
610 * semaphore held, this is the only suitable locking mechanism we have
611 * in 2.6. Some may be called at interrupt time at this point though.
612 */
613
614struct fb_ops {
615 /* open/release and usage marking */
616 struct module *owner;
617 int (*fb_open)(struct fb_info *info, int user);
618 int (*fb_release)(struct fb_info *info, int user);
619
620 /* For framebuffers with strange non linear layouts or that do not
621 * work with normal memory mapped access
622 */
623 ssize_t (*fb_read)(struct fb_info *info, char __user *buf,
624 size_t count, loff_t *ppos);
625 ssize_t (*fb_write)(struct fb_info *info, const char __user *buf,
626 size_t count, loff_t *ppos);
627
628 /* checks var and eventually tweaks it to something supported,
629 * DO NOT MODIFY PAR */
630 int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
631
632 /* set the video mode according to info->var */
633 int (*fb_set_par)(struct fb_info *info);
634
635 /* set color register */
636 int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green,
637 unsigned blue, unsigned transp, struct fb_info *info);
638
639 /* set color registers in batch */
640 int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info);
641
642 /* blank display */
643 int (*fb_blank)(int blank, struct fb_info *info);
644
645 /* pan display */
646 int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info);
647
648 /* Draws a rectangle */
649 void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);
650 /* Copy data from area to another */
651 void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);
652 /* Draws a image to the display */
653 void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
654
655 /* Draws cursor */
656 int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
657
658 /* Rotates the display */
659 void (*fb_rotate)(struct fb_info *info, int angle);
660
661 /* wait for blit idle, optional */
662 int (*fb_sync)(struct fb_info *info);
663
664 /* perform fb specific ioctl (optional) */
665 int (*fb_ioctl)(struct fb_info *info, unsigned int cmd,
666 unsigned long arg);
667
668 /* Handle 32bit compat ioctl (optional) */
669 int (*fb_compat_ioctl)(struct fb_info *info, unsigned cmd,
670 unsigned long arg);
671
672 /* perform fb specific mmap */
673 int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma);
674
675 /* get capability given var */
676 void (*fb_get_caps)(struct fb_info *info, struct fb_blit_caps *caps,
677 struct fb_var_screeninfo *var);
678
679 /* teardown any resources to do with this framebuffer */
680 void (*fb_destroy)(struct fb_info *info);
681};
682
683#ifdef CONFIG_FB_TILEBLITTING
684#define FB_TILE_CURSOR_NONE 0
685#define FB_TILE_CURSOR_UNDERLINE 1
686#define FB_TILE_CURSOR_LOWER_THIRD 2
687#define FB_TILE_CURSOR_LOWER_HALF 3
688#define FB_TILE_CURSOR_TWO_THIRDS 4
689#define FB_TILE_CURSOR_BLOCK 5
690
691struct fb_tilemap {
692 __u32 width; /* width of each tile in pixels */
693 __u32 height; /* height of each tile in scanlines */
694 __u32 depth; /* color depth of each tile */
695 __u32 length; /* number of tiles in the map */
696 const __u8 *data; /* actual tile map: a bitmap array, packed
697 to the nearest byte */
698};
699
700struct fb_tilerect {
701 __u32 sx; /* origin in the x-axis */
702 __u32 sy; /* origin in the y-axis */
703 __u32 width; /* number of tiles in the x-axis */
704 __u32 height; /* number of tiles in the y-axis */
705 __u32 index; /* what tile to use: index to tile map */
706 __u32 fg; /* foreground color */
707 __u32 bg; /* background color */
708 __u32 rop; /* raster operation */
709};
710
711struct fb_tilearea {
712 __u32 sx; /* source origin in the x-axis */
713 __u32 sy; /* source origin in the y-axis */
714 __u32 dx; /* destination origin in the x-axis */
715 __u32 dy; /* destination origin in the y-axis */
716 __u32 width; /* number of tiles in the x-axis */
717 __u32 height; /* number of tiles in the y-axis */
718};
719
720struct fb_tileblit {
721 __u32 sx; /* origin in the x-axis */
722 __u32 sy; /* origin in the y-axis */
723 __u32 width; /* number of tiles in the x-axis */
724 __u32 height; /* number of tiles in the y-axis */
725 __u32 fg; /* foreground color */
726 __u32 bg; /* background color */
727 __u32 length; /* number of tiles to draw */
728 __u32 *indices; /* array of indices to tile map */
729};
730
731struct fb_tilecursor {
732 __u32 sx; /* cursor position in the x-axis */
733 __u32 sy; /* cursor position in the y-axis */
734 __u32 mode; /* 0 = erase, 1 = draw */
735 __u32 shape; /* see FB_TILE_CURSOR_* */
736 __u32 fg; /* foreground color */
737 __u32 bg; /* background color */
738};
739
740struct fb_tile_ops {
741 /* set tile characteristics */
742 void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map);
743
744 /* all dimensions from hereon are in terms of tiles */
745
746 /* move a rectangular region of tiles from one area to another*/
747 void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area);
748 /* fill a rectangular region with a tile */
749 void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect);
750 /* copy an array of tiles */
751 void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit);
752 /* cursor */
753 void (*fb_tilecursor)(struct fb_info *info,
754 struct fb_tilecursor *cursor);
755 /* get maximum length of the tile map */
756 int (*fb_get_tilemax)(struct fb_info *info);
757};
758#endif /* CONFIG_FB_TILEBLITTING */
759
760/* FBINFO_* = fb_info.flags bit flags */
761#define FBINFO_MODULE 0x0001 /* Low-level driver is a module */
762#define FBINFO_HWACCEL_DISABLED 0x0002
763 /* When FBINFO_HWACCEL_DISABLED is set:
764 * Hardware acceleration is turned off. Software implementations
765 * of required functions (copyarea(), fillrect(), and imageblit())
766 * takes over; acceleration engine should be in a quiescent state */
767
768/* hints */
769#define FBINFO_VIRTFB 0x0004 /* FB is System RAM, not device. */
770#define FBINFO_PARTIAL_PAN_OK 0x0040 /* otw use pan only for double-buffering */
771#define FBINFO_READS_FAST 0x0080 /* soft-copy faster than rendering */
772
773/* hardware supported ops */
774/* semantics: when a bit is set, it indicates that the operation is
775 * accelerated by hardware.
776 * required functions will still work even if the bit is not set.
777 * optional functions may not even exist if the flag bit is not set.
778 */
779#define FBINFO_HWACCEL_NONE 0x0000
780#define FBINFO_HWACCEL_COPYAREA 0x0100 /* required */
781#define FBINFO_HWACCEL_FILLRECT 0x0200 /* required */
782#define FBINFO_HWACCEL_IMAGEBLIT 0x0400 /* required */
783#define FBINFO_HWACCEL_ROTATE 0x0800 /* optional */
784#define FBINFO_HWACCEL_XPAN 0x1000 /* optional */
785#define FBINFO_HWACCEL_YPAN 0x2000 /* optional */
786#define FBINFO_HWACCEL_YWRAP 0x4000 /* optional */
787
788#define FBINFO_MISC_USEREVENT 0x10000 /* event request
789 from userspace */
790#define FBINFO_MISC_TILEBLITTING 0x20000 /* use tile blitting */
791#define FBINFO_MISC_FIRMWARE 0x40000 /* a replaceable firmware
792 inited framebuffer */
793
794/* A driver may set this flag to indicate that it does want a set_par to be
795 * called every time when fbcon_switch is executed. The advantage is that with
796 * this flag set you can really be sure that set_par is always called before
797 * any of the functions dependant on the correct hardware state or altering
798 * that state, even if you are using some broken X releases. The disadvantage
799 * is that it introduces unwanted delays to every console switch if set_par
800 * is slow. It is a good idea to try this flag in the drivers initialization
801 * code whenever there is a bug report related to switching between X and the
802 * framebuffer console.
803 */
804#define FBINFO_MISC_ALWAYS_SETPAR 0x40000
805
806/*
807 * Host and GPU endianness differ.
808 */
809#define FBINFO_FOREIGN_ENDIAN 0x100000
810/*
811 * Big endian math. This is the same flags as above, but with different
812 * meaning, it is set by the fb subsystem depending FOREIGN_ENDIAN flag
813 * and host endianness. Drivers should not use this flag.
814 */
815#define FBINFO_BE_MATH 0x100000
816
817struct fb_info {
818 int node;
819 int flags;
820 struct mutex lock; /* Lock for open/release/ioctl funcs */
821 struct mutex mm_lock; /* Lock for fb_mmap and smem_* fields */
822 struct fb_var_screeninfo var; /* Current var */
823 struct fb_fix_screeninfo fix; /* Current fix */
824 struct fb_monspecs monspecs; /* Current Monitor specs */
825 struct work_struct queue; /* Framebuffer event queue */
826 struct fb_pixmap pixmap; /* Image hardware mapper */
827 struct fb_pixmap sprite; /* Cursor hardware mapper */
828 struct fb_cmap cmap; /* Current cmap */
829 struct list_head modelist; /* mode list */
830 struct fb_videomode *mode; /* current mode */
831
832#ifdef CONFIG_FB_BACKLIGHT
833 /* assigned backlight device */
834 /* set before framebuffer registration,
835 remove after unregister */
836 struct backlight_device *bl_dev;
837
838 /* Backlight level curve */
839 struct mutex bl_curve_mutex;
840 u8 bl_curve[FB_BACKLIGHT_LEVELS];
841#endif
842#ifdef CONFIG_FB_DEFERRED_IO
843 struct delayed_work deferred_work;
844 struct fb_deferred_io *fbdefio;
845#endif
846
847 struct fb_ops *fbops;
848 struct device *device; /* This is the parent */
849 struct device *dev; /* This is this fb device */
850 int class_flag; /* private sysfs flags */
851#ifdef CONFIG_FB_TILEBLITTING
852 struct fb_tile_ops *tileops; /* Tile Blitting */
853#endif
854 char __iomem *screen_base; /* Virtual address */
855 unsigned long screen_size; /* Amount of ioremapped VRAM or 0 */
856 void *pseudo_palette; /* Fake palette of 16 colors */
857#define FBINFO_STATE_RUNNING 0
858#define FBINFO_STATE_SUSPENDED 1
859 u32 state; /* Hardware state i.e suspend */
860 void *fbcon_par; /* fbcon use-only private area */
861 /* From here on everything is device dependent */
862 void *par;
863 /* we need the PCI or similiar aperture base/size not
864 smem_start/size as smem_start may just be an object
865 allocated inside the aperture so may not actually overlap */
866 struct apertures_struct {
867 unsigned int count;
868 struct aperture {
869 resource_size_t base;
870 resource_size_t size;
871 } ranges[0];
872 } *apertures;
873};
874
875static inline struct apertures_struct *alloc_apertures(unsigned int max_num) {
876 struct apertures_struct *a = kzalloc(sizeof(struct apertures_struct)
877 + max_num * sizeof(struct aperture), GFP_KERNEL);
878 a->count = max_num;
879 return a;
880}
881
882#ifdef MODULE
883#define FBINFO_DEFAULT FBINFO_MODULE
884#else
885#define FBINFO_DEFAULT 0
886#endif
887
888// This will go away
889#define FBINFO_FLAG_MODULE FBINFO_MODULE
890#define FBINFO_FLAG_DEFAULT FBINFO_DEFAULT
891
892/* This will go away
893 * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags
894 * when it wants to turn the acceleration engine on. This is
895 * really a separate operation, and should be modified via sysfs.
896 * But for now, we leave it broken with the following define
897 */
898#define STUPID_ACCELF_TEXT_SHIT
899
900// This will go away
901#if defined(__sparc__)
902
903/* We map all of our framebuffers such that big-endian accesses
904 * are what we want, so the following is sufficient.
905 */
906
907// This will go away
908#define fb_readb sbus_readb
909#define fb_readw sbus_readw
910#define fb_readl sbus_readl
911#define fb_readq sbus_readq
912#define fb_writeb sbus_writeb
913#define fb_writew sbus_writew
914#define fb_writel sbus_writel
915#define fb_writeq sbus_writeq
916#define fb_memset sbus_memset_io
917
918#elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || defined(__sh__) || defined(__powerpc__) || defined(__avr32__) || defined(__bfin__)
919
920#define fb_readb __raw_readb
921#define fb_readw __raw_readw
922#define fb_readl __raw_readl
923#define fb_readq __raw_readq
924#define fb_writeb __raw_writeb
925#define fb_writew __raw_writew
926#define fb_writel __raw_writel
927#define fb_writeq __raw_writeq
928#define fb_memset memset_io
929
930#else
931
932#define fb_readb(addr) (*(volatile u8 *) (addr))
933#define fb_readw(addr) (*(volatile u16 *) (addr))
934#define fb_readl(addr) (*(volatile u32 *) (addr))
935#define fb_readq(addr) (*(volatile u64 *) (addr))
936#define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
937#define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
938#define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
939#define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b))
940#define fb_memset memset
941
942#endif
943
944#define FB_LEFT_POS(p, bpp) (fb_be_math(p) ? (32 - (bpp)) : 0)
945#define FB_SHIFT_HIGH(p, val, bits) (fb_be_math(p) ? (val) >> (bits) : \
946 (val) << (bits))
947#define FB_SHIFT_LOW(p, val, bits) (fb_be_math(p) ? (val) << (bits) : \
948 (val) >> (bits))
949
950 /*
951 * `Generic' versions of the frame buffer device operations
952 */
953
954extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var);
955extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var);
956extern int fb_blank(struct fb_info *info, int blank);
957extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
958extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
959extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image);
960/*
961 * Drawing operations where framebuffer is in system RAM
962 */
963extern void sys_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
964extern void sys_copyarea(struct fb_info *info, const struct fb_copyarea *area);
965extern void sys_imageblit(struct fb_info *info, const struct fb_image *image);
966extern ssize_t fb_sys_read(struct fb_info *info, char __user *buf,
967 size_t count, loff_t *ppos);
968extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
969 size_t count, loff_t *ppos);
970
971/* drivers/video/fbmem.c */
972extern int register_framebuffer(struct fb_info *fb_info);
973extern int unregister_framebuffer(struct fb_info *fb_info);
974extern void remove_conflicting_framebuffers(struct apertures_struct *a,
975 const char *name, bool primary);
976extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
977extern int fb_show_logo(struct fb_info *fb_info, int rotate);
978extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);
979extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx,
980 u32 height, u32 shift_high, u32 shift_low, u32 mod);
981extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height);
982extern void fb_set_suspend(struct fb_info *info, int state);
983extern int fb_get_color_depth(struct fb_var_screeninfo *var,
984 struct fb_fix_screeninfo *fix);
985extern int fb_get_options(char *name, char **option);
986extern int fb_new_modelist(struct fb_info *info);
987
988extern struct fb_info *registered_fb[FB_MAX];
989extern int num_registered_fb;
990extern struct class *fb_class;
991
992extern int lock_fb_info(struct fb_info *info);
993
994static inline void unlock_fb_info(struct fb_info *info)
995{
996 mutex_unlock(&info->lock);
997}
998
999static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch,
1000 u8 *src, u32 s_pitch, u32 height)
1001{
1002 int i, j;
1003
1004 d_pitch -= s_pitch;
1005
1006 for (i = height; i--; ) {
1007 /* s_pitch is a few bytes at the most, memcpy is suboptimal */
1008 for (j = 0; j < s_pitch; j++)
1009 *dst++ = *src++;
1010 dst += d_pitch;
1011 }
1012}
1013
1014/* drivers/video/fb_defio.c */
1015extern void fb_deferred_io_init(struct fb_info *info);
1016extern void fb_deferred_io_open(struct fb_info *info,
1017 struct inode *inode,
1018 struct file *file);
1019extern void fb_deferred_io_cleanup(struct fb_info *info);
1020extern int fb_deferred_io_fsync(struct file *file, struct dentry *dentry,
1021 int datasync);
1022
1023static inline bool fb_be_math(struct fb_info *info)
1024{
1025#ifdef CONFIG_FB_FOREIGN_ENDIAN
1026#if defined(CONFIG_FB_BOTH_ENDIAN)
1027 return info->flags & FBINFO_BE_MATH;
1028#elif defined(CONFIG_FB_BIG_ENDIAN)
1029 return true;
1030#elif defined(CONFIG_FB_LITTLE_ENDIAN)
1031 return false;
1032#endif /* CONFIG_FB_BOTH_ENDIAN */
1033#else
1034#ifdef __BIG_ENDIAN
1035 return true;
1036#else
1037 return false;
1038#endif /* __BIG_ENDIAN */
1039#endif /* CONFIG_FB_FOREIGN_ENDIAN */
1040}
1041
1042/* drivers/video/fbsysfs.c */
1043extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);
1044extern void framebuffer_release(struct fb_info *info);
1045extern int fb_init_device(struct fb_info *fb_info);
1046extern void fb_cleanup_device(struct fb_info *head);
1047extern void fb_bl_default_curve(struct fb_info *fb_info, u8 off, u8 min, u8 max);
1048
1049/* drivers/video/fbmon.c */
1050#define FB_MAXTIMINGS 0
1051#define FB_VSYNCTIMINGS 1
1052#define FB_HSYNCTIMINGS 2
1053#define FB_DCLKTIMINGS 3
1054#define FB_IGNOREMON 0x100
1055
1056#define FB_MODE_IS_UNKNOWN 0
1057#define FB_MODE_IS_DETAILED 1
1058#define FB_MODE_IS_STANDARD 2
1059#define FB_MODE_IS_VESA 4
1060#define FB_MODE_IS_CALCULATED 8
1061#define FB_MODE_IS_FIRST 16
1062#define FB_MODE_IS_FROM_VAR 32
1063
1064extern int fbmon_dpms(const struct fb_info *fb_info);
1065extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var,
1066 struct fb_info *info);
1067extern int fb_validate_mode(const struct fb_var_screeninfo *var,
1068 struct fb_info *info);
1069extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);
1070extern const unsigned char *fb_firmware_edid(struct device *device);
1071extern void fb_edid_to_monspecs(unsigned char *edid,
1072 struct fb_monspecs *specs);
1073extern void fb_destroy_modedb(struct fb_videomode *modedb);
1074extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb);
1075extern unsigned char *fb_ddc_read(struct i2c_adapter *adapter);
1076
1077/* drivers/video/modedb.c */
1078#define VESA_MODEDB_SIZE 34
1079extern void fb_var_to_videomode(struct fb_videomode *mode,
1080 const struct fb_var_screeninfo *var);
1081extern void fb_videomode_to_var(struct fb_var_screeninfo *var,
1082 const struct fb_videomode *mode);
1083extern int fb_mode_is_equal(const struct fb_videomode *mode1,
1084 const struct fb_videomode *mode2);
1085extern int fb_add_videomode(const struct fb_videomode *mode,
1086 struct list_head *head);
1087extern void fb_delete_videomode(const struct fb_videomode *mode,
1088 struct list_head *head);
1089extern const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var,
1090 struct list_head *head);
1091extern const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var,
1092 struct list_head *head);
1093extern const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode,
1094 struct list_head *head);
1095extern void fb_destroy_modelist(struct list_head *head);
1096extern void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num,
1097 struct list_head *head);
1098extern const struct fb_videomode *fb_find_best_display(const struct fb_monspecs *specs,
1099 struct list_head *head);
1100
1101/* drivers/video/fbcmap.c */
1102extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);
1103extern void fb_dealloc_cmap(struct fb_cmap *cmap);
1104extern int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to);
1105extern int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to);
1106extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info);
1107extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info);
1108extern const struct fb_cmap *fb_default_cmap(int len);
1109extern void fb_invert_cmaps(void);
1110
1111struct fb_videomode {
1112 const char *name; /* optional */
1113 u32 refresh; /* optional */
1114 u32 xres;
1115 u32 yres;
1116 u32 pixclock;
1117 u32 left_margin;
1118 u32 right_margin;
1119 u32 upper_margin;
1120 u32 lower_margin;
1121 u32 hsync_len;
1122 u32 vsync_len;
1123 u32 sync;
1124 u32 vmode;
1125 u32 flag;
1126};
1127
1128extern const char *fb_mode_option;
1129extern const struct fb_videomode vesa_modes[];
1130
1131struct fb_modelist {
1132 struct list_head list;
1133 struct fb_videomode mode;
1134};
1135
1136extern int fb_find_mode(struct fb_var_screeninfo *var,
1137 struct fb_info *info, const char *mode_option,
1138 const struct fb_videomode *db,
1139 unsigned int dbsize,
1140 const struct fb_videomode *default_mode,
1141 unsigned int default_bpp);
1142
1143#endif /* __KERNEL__ */
1144
1145#endif /* _LINUX_FB_H */