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Merge branch 'docs-next' of git://git.lwn.net/linux-2.6
[linux-2.6/next.git] / include / linux / fb.h
bloba34bdf5a9d232e8d6d0c8a1d4efc1d2d069856b4
1 #ifndef _LINUX_FB_H
2 #define _LINUX_FB_H
3
4 #include <linux/types.h>
5 #include <linux/i2c.h>
6
7 struct 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
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
154 struct 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 */
184 struct 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
237 struct 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
276 struct 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
285 struct 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
297 enum {
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
324 struct 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
336 struct fb_copyarea {
337 __u32 dx;
338 __u32 dy;
339 __u32 width;
340 __u32 height;
341 __u32 sx;
342 __u32 sy;
343 };
344
345 struct fb_fillrect {
346 __u32 dx; /* screen-relative */
347 __u32 dy;
348 __u32 width;
349 __u32 height;
350 __u32 color;
351 __u32 rop;
352 };
353
354 struct 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
378 struct fbcurpos {
379 __u16 x, y;
380 };
381
382 struct 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 <asm/io.h>
407
408 struct vm_area_struct;
409 struct fb_info;
410 struct device;
411 struct file;
412
413 /* Definitions below are used in the parsed monitor specs */
414 #define FB_DPMS_ACTIVE_OFF 1
415 #define FB_DPMS_SUSPEND 2
416 #define FB_DPMS_STANDBY 4
417
418 #define FB_DISP_DDI 1
419 #define FB_DISP_ANA_700_300 2
420 #define FB_DISP_ANA_714_286 4
421 #define FB_DISP_ANA_1000_400 8
422 #define FB_DISP_ANA_700_000 16
423
424 #define FB_DISP_MONO 32
425 #define FB_DISP_RGB 64
426 #define FB_DISP_MULTI 128
427 #define FB_DISP_UNKNOWN 256
428
429 #define FB_SIGNAL_NONE 0
430 #define FB_SIGNAL_BLANK_BLANK 1
431 #define FB_SIGNAL_SEPARATE 2
432 #define FB_SIGNAL_COMPOSITE 4
433 #define FB_SIGNAL_SYNC_ON_GREEN 8
434 #define FB_SIGNAL_SERRATION_ON 16
435
436 #define FB_MISC_PRIM_COLOR 1
437 #define FB_MISC_1ST_DETAIL 2 /* First Detailed Timing is preferred */
438 struct fb_chroma {
439 __u32 redx; /* in fraction of 1024 */
440 __u32 greenx;
441 __u32 bluex;
442 __u32 whitex;
443 __u32 redy;
444 __u32 greeny;
445 __u32 bluey;
446 __u32 whitey;
447 };
448
449 struct fb_monspecs {
450 struct fb_chroma chroma;
451 struct fb_videomode *modedb; /* mode database */
452 __u8 manufacturer[4]; /* Manufacturer */
453 __u8 monitor[14]; /* Monitor String */
454 __u8 serial_no[14]; /* Serial Number */
455 __u8 ascii[14]; /* ? */
456 __u32 modedb_len; /* mode database length */
457 __u32 model; /* Monitor Model */
458 __u32 serial; /* Serial Number - Integer */
459 __u32 year; /* Year manufactured */
460 __u32 week; /* Week Manufactured */
461 __u32 hfmin; /* hfreq lower limit (Hz) */
462 __u32 hfmax; /* hfreq upper limit (Hz) */
463 __u32 dclkmin; /* pixelclock lower limit (Hz) */
464 __u32 dclkmax; /* pixelclock upper limit (Hz) */
465 __u16 input; /* display type - see FB_DISP_* */
466 __u16 dpms; /* DPMS support - see FB_DPMS_ */
467 __u16 signal; /* Signal Type - see FB_SIGNAL_* */
468 __u16 vfmin; /* vfreq lower limit (Hz) */
469 __u16 vfmax; /* vfreq upper limit (Hz) */
470 __u16 gamma; /* Gamma - in fractions of 100 */
471 __u16 gtf : 1; /* supports GTF */
472 __u16 misc; /* Misc flags - see FB_MISC_* */
473 __u8 version; /* EDID version... */
474 __u8 revision; /* ...and revision */
475 __u8 max_x; /* Maximum horizontal size (cm) */
476 __u8 max_y; /* Maximum vertical size (cm) */
477 };
478
479 struct fb_cmap_user {
480 __u32 start; /* First entry */
481 __u32 len; /* Number of entries */
482 __u16 __user *red; /* Red values */
483 __u16 __user *green;
484 __u16 __user *blue;
485 __u16 __user *transp; /* transparency, can be NULL */
486 };
487
488 struct fb_image_user {
489 __u32 dx; /* Where to place image */
490 __u32 dy;
491 __u32 width; /* Size of image */
492 __u32 height;
493 __u32 fg_color; /* Only used when a mono bitmap */
494 __u32 bg_color;
495 __u8 depth; /* Depth of the image */
496 const char __user *data; /* Pointer to image data */
497 struct fb_cmap_user cmap; /* color map info */
498 };
499
500 struct fb_cursor_user {
501 __u16 set; /* what to set */
502 __u16 enable; /* cursor on/off */
503 __u16 rop; /* bitop operation */
504 const char __user *mask; /* cursor mask bits */
505 struct fbcurpos hot; /* cursor hot spot */
506 struct fb_image_user image; /* Cursor image */
507 };
508
509 /*
510 * Register/unregister for framebuffer events
511 */
512
513 /* The resolution of the passed in fb_info about to change */
514 #define FB_EVENT_MODE_CHANGE 0x01
515 /* The display on this fb_info is beeing suspended, no access to the
516 * framebuffer is allowed any more after that call returns
517 */
518 #define FB_EVENT_SUSPEND 0x02
519 /* The display on this fb_info was resumed, you can restore the display
520 * if you own it
521 */
522 #define FB_EVENT_RESUME 0x03
523 /* An entry from the modelist was removed */
524 #define FB_EVENT_MODE_DELETE 0x04
525 /* A driver registered itself */
526 #define FB_EVENT_FB_REGISTERED 0x05
527 /* A driver unregistered itself */
528 #define FB_EVENT_FB_UNREGISTERED 0x06
529 /* CONSOLE-SPECIFIC: get console to framebuffer mapping */
530 #define FB_EVENT_GET_CONSOLE_MAP 0x07
531 /* CONSOLE-SPECIFIC: set console to framebuffer mapping */
532 #define FB_EVENT_SET_CONSOLE_MAP 0x08
533 /* A hardware display blank change occured */
534 #define FB_EVENT_BLANK 0x09
535 /* Private modelist is to be replaced */
536 #define FB_EVENT_NEW_MODELIST 0x0A
537 /* The resolution of the passed in fb_info about to change and
538 all vc's should be changed */
539 #define FB_EVENT_MODE_CHANGE_ALL 0x0B
540 /* A software display blank change occured */
541 #define FB_EVENT_CONBLANK 0x0C
542 /* Get drawing requirements */
543 #define FB_EVENT_GET_REQ 0x0D
544 /* Unbind from the console if possible */
545 #define FB_EVENT_FB_UNBIND 0x0E
546
547 struct fb_event {
548 struct fb_info *info;
549 void *data;
550 };
551
552 struct fb_blit_caps {
553 u32 x;
554 u32 y;
555 u32 len;
556 u32 flags;
557 };
558
559 extern int fb_register_client(struct notifier_block *nb);
560 extern int fb_unregister_client(struct notifier_block *nb);
561 extern int fb_notifier_call_chain(unsigned long val, void *v);
562 /*
563 * Pixmap structure definition
564 *
565 * The purpose of this structure is to translate data
566 * from the hardware independent format of fbdev to what
567 * format the hardware needs.
568 */
569
570 #define FB_PIXMAP_DEFAULT 1 /* used internally by fbcon */
571 #define FB_PIXMAP_SYSTEM 2 /* memory is in system RAM */
572 #define FB_PIXMAP_IO 4 /* memory is iomapped */
573 #define FB_PIXMAP_SYNC 256 /* set if GPU can DMA */
574
575 struct fb_pixmap {
576 u8 *addr; /* pointer to memory */
577 u32 size; /* size of buffer in bytes */
578 u32 offset; /* current offset to buffer */
579 u32 buf_align; /* byte alignment of each bitmap */
580 u32 scan_align; /* alignment per scanline */
581 u32 access_align; /* alignment per read/write (bits) */
582 u32 flags; /* see FB_PIXMAP_* */
583 u32 blit_x; /* supported bit block dimensions (1-32)*/
584 u32 blit_y; /* Format: blit_x = 1 << (width - 1) */
585 /* blit_y = 1 << (height - 1) */
586 /* if 0, will be set to 0xffffffff (all)*/
587 /* access methods */
588 void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size);
589 void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size);
590 };
591
592 #ifdef CONFIG_FB_DEFERRED_IO
593 struct fb_deferred_io {
594 /* delay between mkwrite and deferred handler */
595 unsigned long delay;
596 struct mutex lock; /* mutex that protects the page list */
597 struct list_head pagelist; /* list of touched pages */
598 /* callback */
599 void (*deferred_io)(struct fb_info *info, struct list_head *pagelist);
600 };
601 #endif
602
603 /*
604 * Frame buffer operations
605 *
606 * LOCKING NOTE: those functions must _ALL_ be called with the console
607 * semaphore held, this is the only suitable locking mechanism we have
608 * in 2.6. Some may be called at interrupt time at this point though.
609 */
610
611 struct fb_ops {
612 /* open/release and usage marking */
613 struct module *owner;
614 int (*fb_open)(struct fb_info *info, int user);
615 int (*fb_release)(struct fb_info *info, int user);
616
617 /* For framebuffers with strange non linear layouts or that do not
618 * work with normal memory mapped access
619 */
620 ssize_t (*fb_read)(struct fb_info *info, char __user *buf,
621 size_t count, loff_t *ppos);
622 ssize_t (*fb_write)(struct fb_info *info, const char __user *buf,
623 size_t count, loff_t *ppos);
624
625 /* checks var and eventually tweaks it to something supported,
626 * DO NOT MODIFY PAR */
627 int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
628
629 /* set the video mode according to info->var */
630 int (*fb_set_par)(struct fb_info *info);
631
632 /* set color register */
633 int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green,
634 unsigned blue, unsigned transp, struct fb_info *info);
635
636 /* set color registers in batch */
637 int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info);
638
639 /* blank display */
640 int (*fb_blank)(int blank, struct fb_info *info);
641
642 /* pan display */
643 int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info);
644
645 /* Draws a rectangle */
646 void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);
647 /* Copy data from area to another */
648 void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);
649 /* Draws a image to the display */
650 void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
651
652 /* Draws cursor */
653 int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
654
655 /* Rotates the display */
656 void (*fb_rotate)(struct fb_info *info, int angle);
657
658 /* wait for blit idle, optional */
659 int (*fb_sync)(struct fb_info *info);
660
661 /* perform fb specific ioctl (optional) */
662 int (*fb_ioctl)(struct fb_info *info, unsigned int cmd,
663 unsigned long arg);
664
665 /* Handle 32bit compat ioctl (optional) */
666 int (*fb_compat_ioctl)(struct fb_info *info, unsigned cmd,
667 unsigned long arg);
668
669 /* perform fb specific mmap */
670 int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma);
671
672 /* save current hardware state */
673 void (*fb_save_state)(struct fb_info *info);
674
675 /* restore saved state */
676 void (*fb_restore_state)(struct fb_info *info);
677
678 /* get capability given var */
679 void (*fb_get_caps)(struct fb_info *info, struct fb_blit_caps *caps,
680 struct fb_var_screeninfo *var);
681
682 /* teardown any resources to do with this framebuffer */
683 void (*fb_destroy)(struct fb_info *info);
684 };
685
686 #ifdef CONFIG_FB_TILEBLITTING
687 #define FB_TILE_CURSOR_NONE 0
688 #define FB_TILE_CURSOR_UNDERLINE 1
689 #define FB_TILE_CURSOR_LOWER_THIRD 2
690 #define FB_TILE_CURSOR_LOWER_HALF 3
691 #define FB_TILE_CURSOR_TWO_THIRDS 4
692 #define FB_TILE_CURSOR_BLOCK 5
693
694 struct fb_tilemap {
695 __u32 width; /* width of each tile in pixels */
696 __u32 height; /* height of each tile in scanlines */
697 __u32 depth; /* color depth of each tile */
698 __u32 length; /* number of tiles in the map */
699 const __u8 *data; /* actual tile map: a bitmap array, packed
700 to the nearest byte */
701 };
702
703 struct fb_tilerect {
704 __u32 sx; /* origin in the x-axis */
705 __u32 sy; /* origin in the y-axis */
706 __u32 width; /* number of tiles in the x-axis */
707 __u32 height; /* number of tiles in the y-axis */
708 __u32 index; /* what tile to use: index to tile map */
709 __u32 fg; /* foreground color */
710 __u32 bg; /* background color */
711 __u32 rop; /* raster operation */
712 };
713
714 struct fb_tilearea {
715 __u32 sx; /* source origin in the x-axis */
716 __u32 sy; /* source origin in the y-axis */
717 __u32 dx; /* destination origin in the x-axis */
718 __u32 dy; /* destination origin in the y-axis */
719 __u32 width; /* number of tiles in the x-axis */
720 __u32 height; /* number of tiles in the y-axis */
721 };
722
723 struct fb_tileblit {
724 __u32 sx; /* origin in the x-axis */
725 __u32 sy; /* origin in the y-axis */
726 __u32 width; /* number of tiles in the x-axis */
727 __u32 height; /* number of tiles in the y-axis */
728 __u32 fg; /* foreground color */
729 __u32 bg; /* background color */
730 __u32 length; /* number of tiles to draw */
731 __u32 *indices; /* array of indices to tile map */
732 };
733
734 struct fb_tilecursor {
735 __u32 sx; /* cursor position in the x-axis */
736 __u32 sy; /* cursor position in the y-axis */
737 __u32 mode; /* 0 = erase, 1 = draw */
738 __u32 shape; /* see FB_TILE_CURSOR_* */
739 __u32 fg; /* foreground color */
740 __u32 bg; /* background color */
741 };
742
743 struct fb_tile_ops {
744 /* set tile characteristics */
745 void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map);
746
747 /* all dimensions from hereon are in terms of tiles */
748
749 /* move a rectangular region of tiles from one area to another*/
750 void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area);
751 /* fill a rectangular region with a tile */
752 void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect);
753 /* copy an array of tiles */
754 void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit);
755 /* cursor */
756 void (*fb_tilecursor)(struct fb_info *info,
757 struct fb_tilecursor *cursor);
758 /* get maximum length of the tile map */
759 int (*fb_get_tilemax)(struct fb_info *info);
760 };
761 #endif /* CONFIG_FB_TILEBLITTING */
762
763 /* FBINFO_* = fb_info.flags bit flags */
764 #define FBINFO_MODULE 0x0001 /* Low-level driver is a module */
765 #define FBINFO_HWACCEL_DISABLED 0x0002
766 /* When FBINFO_HWACCEL_DISABLED is set:
767 * Hardware acceleration is turned off. Software implementations
768 * of required functions (copyarea(), fillrect(), and imageblit())
769 * takes over; acceleration engine should be in a quiescent state */
770
771 /* hints */
772 #define FBINFO_PARTIAL_PAN_OK 0x0040 /* otw use pan only for double-buffering */
773 #define FBINFO_READS_FAST 0x0080 /* soft-copy faster than rendering */
774
775 /* hardware supported ops */
776 /* semantics: when a bit is set, it indicates that the operation is
777 * accelerated by hardware.
778 * required functions will still work even if the bit is not set.
779 * optional functions may not even exist if the flag bit is not set.
780 */
781 #define FBINFO_HWACCEL_NONE 0x0000
782 #define FBINFO_HWACCEL_COPYAREA 0x0100 /* required */
783 #define FBINFO_HWACCEL_FILLRECT 0x0200 /* required */
784 #define FBINFO_HWACCEL_IMAGEBLIT 0x0400 /* required */
785 #define FBINFO_HWACCEL_ROTATE 0x0800 /* optional */
786 #define FBINFO_HWACCEL_XPAN 0x1000 /* optional */
787 #define FBINFO_HWACCEL_YPAN 0x2000 /* optional */
788 #define FBINFO_HWACCEL_YWRAP 0x4000 /* optional */
789
790 #define FBINFO_MISC_USEREVENT 0x10000 /* event request
791 from userspace */
792 #define FBINFO_MISC_TILEBLITTING 0x20000 /* use tile blitting */
793 #define FBINFO_MISC_FIRMWARE 0x40000 /* a replaceable firmware
794 inited framebuffer */
795
796 /* A driver may set this flag to indicate that it does want a set_par to be
797 * called every time when fbcon_switch is executed. The advantage is that with
798 * this flag set you can really be sure that set_par is always called before
799 * any of the functions dependant on the correct hardware state or altering
800 * that state, even if you are using some broken X releases. The disadvantage
801 * is that it introduces unwanted delays to every console switch if set_par
802 * is slow. It is a good idea to try this flag in the drivers initialization
803 * code whenever there is a bug report related to switching between X and the
804 * framebuffer console.
805 */
806 #define FBINFO_MISC_ALWAYS_SETPAR 0x40000
807
808 /*
809 * Host and GPU endianness differ.
810 */
811 #define FBINFO_FOREIGN_ENDIAN 0x100000
812 /*
813 * Big endian math. This is the same flags as above, but with different
814 * meaning, it is set by the fb subsystem depending FOREIGN_ENDIAN flag
815 * and host endianness. Drivers should not use this flag.
816 */
817 #define FBINFO_BE_MATH 0x100000
818
819 struct fb_info {
820 int node;
821 int flags;
822 struct mutex lock; /* Lock for open/release/ioctl funcs */
823 struct mutex mm_lock; /* Lock for fb_mmap and smem_* fields */
824 struct fb_var_screeninfo var; /* Current var */
825 struct fb_fix_screeninfo fix; /* Current fix */
826 struct fb_monspecs monspecs; /* Current Monitor specs */
827 struct work_struct queue; /* Framebuffer event queue */
828 struct fb_pixmap pixmap; /* Image hardware mapper */
829 struct fb_pixmap sprite; /* Cursor hardware mapper */
830 struct fb_cmap cmap; /* Current cmap */
831 struct list_head modelist; /* mode list */
832 struct fb_videomode *mode; /* current mode */
833
834 #ifdef CONFIG_FB_BACKLIGHT
835 /* assigned backlight device */
836 /* set before framebuffer registration,
837 remove after unregister */
838 struct backlight_device *bl_dev;
839
840 /* Backlight level curve */
841 struct mutex bl_curve_mutex;
842 u8 bl_curve[FB_BACKLIGHT_LEVELS];
843 #endif
844 #ifdef CONFIG_FB_DEFERRED_IO
845 struct delayed_work deferred_work;
846 struct fb_deferred_io *fbdefio;
847 #endif
848
849 struct fb_ops *fbops;
850 struct device *device; /* This is the parent */
851 struct device *dev; /* This is this fb device */
852 int class_flag; /* private sysfs flags */
853 #ifdef CONFIG_FB_TILEBLITTING
854 struct fb_tile_ops *tileops; /* Tile Blitting */
855 #endif
856 char __iomem *screen_base; /* Virtual address */
857 unsigned long screen_size; /* Amount of ioremapped VRAM or 0 */
858 void *pseudo_palette; /* Fake palette of 16 colors */
859 #define FBINFO_STATE_RUNNING 0
860 #define FBINFO_STATE_SUSPENDED 1
861 u32 state; /* Hardware state i.e suspend */
862 void *fbcon_par; /* fbcon use-only private area */
863 /* From here on everything is device dependent */
864 void *par;
865 /* we need the PCI or similiar aperture base/size not
866 smem_start/size as smem_start may just be an object
867 allocated inside the aperture so may not actually overlap */
868 resource_size_t aperture_base;
869 resource_size_t aperture_size;
870 };
871
872 #ifdef MODULE
873 #define FBINFO_DEFAULT FBINFO_MODULE
874 #else
875 #define FBINFO_DEFAULT 0
876 #endif
877
878 // This will go away
879 #define FBINFO_FLAG_MODULE FBINFO_MODULE
880 #define FBINFO_FLAG_DEFAULT FBINFO_DEFAULT
881
882 /* This will go away
883 * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags
884 * when it wants to turn the acceleration engine on. This is
885 * really a separate operation, and should be modified via sysfs.
886 * But for now, we leave it broken with the following define
887 */
888 #define STUPID_ACCELF_TEXT_SHIT
889
890 // This will go away
891 #if defined(__sparc__)
892
893 /* We map all of our framebuffers such that big-endian accesses
894 * are what we want, so the following is sufficient.
895 */
896
897 // This will go away
898 #define fb_readb sbus_readb
899 #define fb_readw sbus_readw
900 #define fb_readl sbus_readl
901 #define fb_readq sbus_readq
902 #define fb_writeb sbus_writeb
903 #define fb_writew sbus_writew
904 #define fb_writel sbus_writel
905 #define fb_writeq sbus_writeq
906 #define fb_memset sbus_memset_io
907
908 #elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || defined(__sh__) || defined(__powerpc__) || defined(__avr32__) || defined(__bfin__)
909
910 #define fb_readb __raw_readb
911 #define fb_readw __raw_readw
912 #define fb_readl __raw_readl
913 #define fb_readq __raw_readq
914 #define fb_writeb __raw_writeb
915 #define fb_writew __raw_writew
916 #define fb_writel __raw_writel
917 #define fb_writeq __raw_writeq
918 #define fb_memset memset_io
919
920 #else
921
922 #define fb_readb(addr) (*(volatile u8 *) (addr))
923 #define fb_readw(addr) (*(volatile u16 *) (addr))
924 #define fb_readl(addr) (*(volatile u32 *) (addr))
925 #define fb_readq(addr) (*(volatile u64 *) (addr))
926 #define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
927 #define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
928 #define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
929 #define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b))
930 #define fb_memset memset
931
932 #endif
933
934 #define FB_LEFT_POS(p, bpp) (fb_be_math(p) ? (32 - (bpp)) : 0)
935 #define FB_SHIFT_HIGH(p, val, bits) (fb_be_math(p) ? (val) >> (bits) : \
936 (val) << (bits))
937 #define FB_SHIFT_LOW(p, val, bits) (fb_be_math(p) ? (val) << (bits) : \
938 (val) >> (bits))
939
940 /*
941 * `Generic' versions of the frame buffer device operations
942 */
943
944 extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var);
945 extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var);
946 extern int fb_blank(struct fb_info *info, int blank);
947 extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
948 extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
949 extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image);
950 /*
951 * Drawing operations where framebuffer is in system RAM
952 */
953 extern void sys_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
954 extern void sys_copyarea(struct fb_info *info, const struct fb_copyarea *area);
955 extern void sys_imageblit(struct fb_info *info, const struct fb_image *image);
956 extern ssize_t fb_sys_read(struct fb_info *info, char __user *buf,
957 size_t count, loff_t *ppos);
958 extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
959 size_t count, loff_t *ppos);
960
961 /* drivers/video/fbmem.c */
962 extern int register_framebuffer(struct fb_info *fb_info);
963 extern int unregister_framebuffer(struct fb_info *fb_info);
964 extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
965 extern int fb_show_logo(struct fb_info *fb_info, int rotate);
966 extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);
967 extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx,
968 u32 height, u32 shift_high, u32 shift_low, u32 mod);
969 extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height);
970 extern void fb_set_suspend(struct fb_info *info, int state);
971 extern int fb_get_color_depth(struct fb_var_screeninfo *var,
972 struct fb_fix_screeninfo *fix);
973 extern int fb_get_options(char *name, char **option);
974 extern int fb_new_modelist(struct fb_info *info);
975
976 extern struct fb_info *registered_fb[FB_MAX];
977 extern int num_registered_fb;
978 extern struct class *fb_class;
979
980 extern int lock_fb_info(struct fb_info *info);
981
982 static inline void unlock_fb_info(struct fb_info *info)
983 {
984 mutex_unlock(&info->lock);
985 }
986
987 static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch,
988 u8 *src, u32 s_pitch, u32 height)
989 {
990 int i, j;
991
992 d_pitch -= s_pitch;
993
994 for (i = height; i--; ) {
995 /* s_pitch is a few bytes at the most, memcpy is suboptimal */
996 for (j = 0; j < s_pitch; j++)
997 *dst++ = *src++;
998 dst += d_pitch;
999 }
1000 }
1001
1002 /* drivers/video/fb_defio.c */
1003 extern void fb_deferred_io_init(struct fb_info *info);
1004 extern void fb_deferred_io_open(struct fb_info *info,
1005 struct inode *inode,
1006 struct file *file);
1007 extern void fb_deferred_io_cleanup(struct fb_info *info);
1008 extern int fb_deferred_io_fsync(struct file *file, struct dentry *dentry,
1009 int datasync);
1010
1011 static inline bool fb_be_math(struct fb_info *info)
1012 {
1013 #ifdef CONFIG_FB_FOREIGN_ENDIAN
1014 #if defined(CONFIG_FB_BOTH_ENDIAN)
1015 return info->flags & FBINFO_BE_MATH;
1016 #elif defined(CONFIG_FB_BIG_ENDIAN)
1017 return true;
1018 #elif defined(CONFIG_FB_LITTLE_ENDIAN)
1019 return false;
1020 #endif /* CONFIG_FB_BOTH_ENDIAN */
1021 #else
1022 #ifdef __BIG_ENDIAN
1023 return true;
1024 #else
1025 return false;
1026 #endif /* __BIG_ENDIAN */
1027 #endif /* CONFIG_FB_FOREIGN_ENDIAN */
1028 }
1029
1030 /* drivers/video/fbsysfs.c */
1031 extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);
1032 extern void framebuffer_release(struct fb_info *info);
1033 extern int fb_init_device(struct fb_info *fb_info);
1034 extern void fb_cleanup_device(struct fb_info *head);
1035 extern void fb_bl_default_curve(struct fb_info *fb_info, u8 off, u8 min, u8 max);
1036
1037 /* drivers/video/fbmon.c */
1038 #define FB_MAXTIMINGS 0
1039 #define FB_VSYNCTIMINGS 1
1040 #define FB_HSYNCTIMINGS 2
1041 #define FB_DCLKTIMINGS 3
1042 #define FB_IGNOREMON 0x100
1043
1044 #define FB_MODE_IS_UNKNOWN 0
1045 #define FB_MODE_IS_DETAILED 1
1046 #define FB_MODE_IS_STANDARD 2
1047 #define FB_MODE_IS_VESA 4
1048 #define FB_MODE_IS_CALCULATED 8
1049 #define FB_MODE_IS_FIRST 16
1050 #define FB_MODE_IS_FROM_VAR 32
1051
1052 extern int fbmon_dpms(const struct fb_info *fb_info);
1053 extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var,
1054 struct fb_info *info);
1055 extern int fb_validate_mode(const struct fb_var_screeninfo *var,
1056 struct fb_info *info);
1057 extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);
1058 extern const unsigned char *fb_firmware_edid(struct device *device);
1059 extern void fb_edid_to_monspecs(unsigned char *edid,
1060 struct fb_monspecs *specs);
1061 extern void fb_destroy_modedb(struct fb_videomode *modedb);
1062 extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb);
1063 extern unsigned char *fb_ddc_read(struct i2c_adapter *adapter);
1064
1065 /* drivers/video/modedb.c */
1066 #define VESA_MODEDB_SIZE 34
1067 extern void fb_var_to_videomode(struct fb_videomode *mode,
1068 const struct fb_var_screeninfo *var);
1069 extern void fb_videomode_to_var(struct fb_var_screeninfo *var,
1070 const struct fb_videomode *mode);
1071 extern int fb_mode_is_equal(const struct fb_videomode *mode1,
1072 const struct fb_videomode *mode2);
1073 extern int fb_add_videomode(const struct fb_videomode *mode,
1074 struct list_head *head);
1075 extern void fb_delete_videomode(const struct fb_videomode *mode,
1076 struct list_head *head);
1077 extern const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var,
1078 struct list_head *head);
1079 extern const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var,
1080 struct list_head *head);
1081 extern const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode,
1082 struct list_head *head);
1083 extern void fb_destroy_modelist(struct list_head *head);
1084 extern void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num,
1085 struct list_head *head);
1086 extern const struct fb_videomode *fb_find_best_display(const struct fb_monspecs *specs,
1087 struct list_head *head);
1088
1089 /* drivers/video/fbcmap.c */
1090 extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);
1091 extern void fb_dealloc_cmap(struct fb_cmap *cmap);
1092 extern int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to);
1093 extern int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to);
1094 extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info);
1095 extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info);
1096 extern const struct fb_cmap *fb_default_cmap(int len);
1097 extern void fb_invert_cmaps(void);
1098
1099 struct fb_videomode {
1100 const char *name; /* optional */
1101 u32 refresh; /* optional */
1102 u32 xres;
1103 u32 yres;
1104 u32 pixclock;
1105 u32 left_margin;
1106 u32 right_margin;
1107 u32 upper_margin;
1108 u32 lower_margin;
1109 u32 hsync_len;
1110 u32 vsync_len;
1111 u32 sync;
1112 u32 vmode;
1113 u32 flag;
1114 };
1115
1116 extern const char *fb_mode_option;
1117 extern const struct fb_videomode vesa_modes[];
1118
1119 struct fb_modelist {
1120 struct list_head list;
1121 struct fb_videomode mode;
1122 };
1123
1124 extern int fb_find_mode(struct fb_var_screeninfo *var,
1125 struct fb_info *info, const char *mode_option,
1126 const struct fb_videomode *db,
1127 unsigned int dbsize,
1128 const struct fb_videomode *default_mode,
1129 unsigned int default_bpp);
1130
1131 #endif /* __KERNEL__ */
1132
1133 #endif /* _LINUX_FB_H */
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