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fbmem: fix fb_info->lock and mm->mmap_sem circular locking dependency
[mirror_ubuntu-bionic-kernel.git] / include / linux / fb.h
CommitLineData
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>
1da177e4 6
5e841b88
PM		 7struct dentry;
8
1da177e4
LT		 9/* Definitions of frame buffers */
10
1da177e4
LT		 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 */
a268422d
OZ		 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 */
1da177e4
LT		 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 */
544393fe
TW		 119#define FB_ACCEL_XGI_VOLARI_V 47 /* XGI Volari V3XT, V5, V8 */
120#define FB_ACCEL_XGI_VOLARI_Z 48 /* XGI Volari Z7 */
fe0e3a9d 121#define FB_ACCEL_OMAP1610 49 /* TI OMAP16xx */
01a2d9ed
KH		 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 */
614c0dc9 126#define FB_ACCEL_CIRRUS_ALPINE 53 /* Cirrus Logic 543x/544x/5480 */
1da177e4
LT		 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
137#define FB_ACCEL_SAVAGE4 0x80 /* S3 Savage4 */
138#define FB_ACCEL_SAVAGE3D 0x81 /* S3 Savage3D */
139#define FB_ACCEL_SAVAGE3D_MV 0x82 /* S3 Savage3D-MV */
140#define FB_ACCEL_SAVAGE2000 0x83 /* S3 Savage2000 */
141#define FB_ACCEL_SAVAGE_MX_MV 0x84 /* S3 Savage/MX-MV */
142#define FB_ACCEL_SAVAGE_MX 0x85 /* S3 Savage/MX */
143#define FB_ACCEL_SAVAGE_IX_MV 0x86 /* S3 Savage/IX-MV */
144#define FB_ACCEL_SAVAGE_IX 0x87 /* S3 Savage/IX */
145#define FB_ACCEL_PROSAVAGE_PM 0x88 /* S3 ProSavage PM133 */
146#define FB_ACCEL_PROSAVAGE_KM 0x89 /* S3 ProSavage KM133 */
147#define FB_ACCEL_S3TWISTER_P 0x8a /* S3 Twister */
148#define FB_ACCEL_S3TWISTER_K 0x8b /* S3 TwisterK */
149#define FB_ACCEL_SUPERSAVAGE 0x8c /* S3 Supersavage */
150#define FB_ACCEL_PROSAVAGE_DDR 0x8d /* S3 ProSavage DDR */
151#define FB_ACCEL_PROSAVAGE_DDRK 0x8e /* S3 ProSavage DDR-K */
152
153struct fb_fix_screeninfo {
154 char id[16]; /* identification string eg "TT Builtin" */
155 unsigned long smem_start; /* Start of frame buffer mem */
156 /* (physical address) */
157 __u32 smem_len; /* Length of frame buffer mem */
158 __u32 type; /* see FB_TYPE_* */
159 __u32 type_aux; /* Interleave for interleaved Planes */
160 __u32 visual; /* see FB_VISUAL_* */
161 __u16 xpanstep; /* zero if no hardware panning */
162 __u16 ypanstep; /* zero if no hardware panning */
163 __u16 ywrapstep; /* zero if no hardware ywrap */
164 __u32 line_length; /* length of a line in bytes */
165 unsigned long mmio_start; /* Start of Memory Mapped I/O */
166 /* (physical address) */
167 __u32 mmio_len; /* Length of Memory Mapped I/O */
168 __u32 accel; /* Indicate to driver which */
169 /* specific chip/card we have */
170 __u16 reserved[3]; /* Reserved for future compatibility */
171};
172
173/* Interpretation of offset for color fields: All offsets are from the right,
174 * inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
175 * can use the offset as right argument to <<). A pixel afterwards is a bit
176 * stream and is written to video memory as that unmodified. This implies
177 * big-endian byte order if bits_per_pixel is greater than 8.
178 */
179struct fb_bitfield {
180 __u32 offset; /* beginning of bitfield */
181 __u32 length; /* length of bitfield */
182 __u32 msb_right; /* != 0 : Most significant bit is */
183 /* right */
184};
185
186#define FB_NONSTD_HAM 1 /* Hold-And-Modify (HAM) */
779121e9 187#define FB_NONSTD_REV_PIX_IN_B 2 /* order of pixels in each byte is reversed */
1da177e4
LT		 188
189#define FB_ACTIVATE_NOW 0 /* set values immediately (or vbl)*/
190#define FB_ACTIVATE_NXTOPEN 1 /* activate on next open */
191#define FB_ACTIVATE_TEST 2 /* don't set, round up impossible */
192#define FB_ACTIVATE_MASK 15
193 /* values */
194#define FB_ACTIVATE_VBL 16 /* activate values on next vbl */
195#define FB_CHANGE_CMAP_VBL 32 /* change colormap on vbl */
196#define FB_ACTIVATE_ALL 64 /* change all VCs on this fb */
197#define FB_ACTIVATE_FORCE 128 /* force apply even when no change*/
198#define FB_ACTIVATE_INV_MODE 256 /* invalidate videomode */
199
200#define FB_ACCELF_TEXT 1 /* (OBSOLETE) see fb_info.flags and vc_mode */
201
202#define FB_SYNC_HOR_HIGH_ACT 1 /* horizontal sync high active */
203#define FB_SYNC_VERT_HIGH_ACT 2 /* vertical sync high active */
204#define FB_SYNC_EXT 4 /* external sync */
205#define FB_SYNC_COMP_HIGH_ACT 8 /* composite sync high active */
206#define FB_SYNC_BROADCAST 16 /* broadcast video timings */
207 /* vtotal = 144d/288n/576i => PAL */
208 /* vtotal = 121d/242n/484i => NTSC */
209#define FB_SYNC_ON_GREEN 32 /* sync on green */
210
211#define FB_VMODE_NONINTERLACED 0 /* non interlaced */
212#define FB_VMODE_INTERLACED 1 /* interlaced */
213#define FB_VMODE_DOUBLE 2 /* double scan */
394d3af7 214#define FB_VMODE_ODD_FLD_FIRST 4 /* interlaced: top line first */
1da177e4
LT		 215#define FB_VMODE_MASK 255
216
217#define FB_VMODE_YWRAP 256 /* ywrap instead of panning */
218#define FB_VMODE_SMOOTH_XPAN 512 /* smooth xpan possible (internally used) */
219#define FB_VMODE_CONUPDATE 512 /* don't update x/yoffset */
220
e4fc2761
AD		 221/*
222 * Display rotation support
223 */
224#define FB_ROTATE_UR 0
225#define FB_ROTATE_CW 1
226#define FB_ROTATE_UD 2
227#define FB_ROTATE_CCW 3
228
1da177e4
LT		 229#define PICOS2KHZ(a) (1000000000UL/(a))
230#define KHZ2PICOS(a) (1000000000UL/(a))
231
232struct fb_var_screeninfo {
233 __u32 xres; /* visible resolution */
234 __u32 yres;
235 __u32 xres_virtual; /* virtual resolution */
236 __u32 yres_virtual;
237 __u32 xoffset; /* offset from virtual to visible */
238 __u32 yoffset; /* resolution */
239
240 __u32 bits_per_pixel; /* guess what */
241 __u32 grayscale; /* != 0 Graylevels instead of colors */
242
243 struct fb_bitfield red; /* bitfield in fb mem if true color, */
244 struct fb_bitfield green; /* else only length is significant */
245 struct fb_bitfield blue;
246 struct fb_bitfield transp; /* transparency */
247
248 __u32 nonstd; /* != 0 Non standard pixel format */
249
250 __u32 activate; /* see FB_ACTIVATE_* */
251
252 __u32 height; /* height of picture in mm */
253 __u32 width; /* width of picture in mm */
254
255 __u32 accel_flags; /* (OBSOLETE) see fb_info.flags */
256
257 /* Timing: All values in pixclocks, except pixclock (of course) */
258 __u32 pixclock; /* pixel clock in ps (pico seconds) */
259 __u32 left_margin; /* time from sync to picture */
260 __u32 right_margin; /* time from picture to sync */
261 __u32 upper_margin; /* time from sync to picture */
262 __u32 lower_margin;
263 __u32 hsync_len; /* length of horizontal sync */
264 __u32 vsync_len; /* length of vertical sync */
265 __u32 sync; /* see FB_SYNC_* */
266 __u32 vmode; /* see FB_VMODE_* */
267 __u32 rotate; /* angle we rotate counter clockwise */
268 __u32 reserved[5]; /* Reserved for future compatibility */
269};
270
271struct fb_cmap {
272 __u32 start; /* First entry */
273 __u32 len; /* Number of entries */
274 __u16 *red; /* Red values */
275 __u16 *green;
276 __u16 *blue;
277 __u16 *transp; /* transparency, can be NULL */
278};
279
280struct fb_con2fbmap {
281 __u32 console;
282 __u32 framebuffer;
283};
284
285/* VESA Blanking Levels */
286#define VESA_NO_BLANKING 0
287#define VESA_VSYNC_SUSPEND 1
288#define VESA_HSYNC_SUSPEND 2
289#define VESA_POWERDOWN 3
290
291
292enum {
293 /* screen: unblanked, hsync: on, vsync: on */
294 FB_BLANK_UNBLANK = VESA_NO_BLANKING,
295
296 /* screen: blanked, hsync: on, vsync: on */
297 FB_BLANK_NORMAL = VESA_NO_BLANKING + 1,
298
299 /* screen: blanked, hsync: on, vsync: off */
300 FB_BLANK_VSYNC_SUSPEND = VESA_VSYNC_SUSPEND + 1,
301
302 /* screen: blanked, hsync: off, vsync: on */
303 FB_BLANK_HSYNC_SUSPEND = VESA_HSYNC_SUSPEND + 1,
304
305 /* screen: blanked, hsync: off, vsync: off */
306 FB_BLANK_POWERDOWN = VESA_POWERDOWN + 1
307};
308
309#define FB_VBLANK_VBLANKING 0x001 /* currently in a vertical blank */
310#define FB_VBLANK_HBLANKING 0x002 /* currently in a horizontal blank */
311#define FB_VBLANK_HAVE_VBLANK 0x004 /* vertical blanks can be detected */
312#define FB_VBLANK_HAVE_HBLANK 0x008 /* horizontal blanks can be detected */
313#define FB_VBLANK_HAVE_COUNT 0x010 /* global retrace counter is available */
314#define FB_VBLANK_HAVE_VCOUNT 0x020 /* the vcount field is valid */
315#define FB_VBLANK_HAVE_HCOUNT 0x040 /* the hcount field is valid */
316#define FB_VBLANK_VSYNCING 0x080 /* currently in a vsync */
317#define FB_VBLANK_HAVE_VSYNC 0x100 /* verical syncs can be detected */
318
319struct fb_vblank {
320 __u32 flags; /* FB_VBLANK flags */
321 __u32 count; /* counter of retraces since boot */
322 __u32 vcount; /* current scanline position */
323 __u32 hcount; /* current scandot position */
324 __u32 reserved[4]; /* reserved for future compatibility */
325};
326
327/* Internal HW accel */
328#define ROP_COPY 0
329#define ROP_XOR 1
330
331struct fb_copyarea {
332 __u32 dx;
333 __u32 dy;
334 __u32 width;
335 __u32 height;
336 __u32 sx;
337 __u32 sy;
338};
339
340struct fb_fillrect {
341 __u32 dx; /* screen-relative */
342 __u32 dy;
343 __u32 width;
344 __u32 height;
345 __u32 color;
346 __u32 rop;
347};
348
349struct fb_image {
350 __u32 dx; /* Where to place image */
351 __u32 dy;
352 __u32 width; /* Size of image */
353 __u32 height;
354 __u32 fg_color; /* Only used when a mono bitmap */
355 __u32 bg_color;
356 __u8 depth; /* Depth of the image */
357 const char *data; /* Pointer to image data */
358 struct fb_cmap cmap; /* color map info */
359};
360
361/*
362 * hardware cursor control
363 */
364
365#define FB_CUR_SETIMAGE 0x01
366#define FB_CUR_SETPOS 0x02
367#define FB_CUR_SETHOT 0x04
368#define FB_CUR_SETCMAP 0x08
369#define FB_CUR_SETSHAPE 0x10
370#define FB_CUR_SETSIZE 0x20
371#define FB_CUR_SETALL 0xFF
372
373struct fbcurpos {
374 __u16 x, y;
375};
376
377struct fb_cursor {
378 __u16 set; /* what to set */
379 __u16 enable; /* cursor on/off */
380 __u16 rop; /* bitop operation */
381 const char *mask; /* cursor mask bits */
382 struct fbcurpos hot; /* cursor hot spot */
383 struct fb_image image; /* Cursor image */
384};
385
5474c120
MH		 386#ifdef CONFIG_FB_BACKLIGHT
387/* Settings for the generic backlight code */
388#define FB_BACKLIGHT_LEVELS 128
389#define FB_BACKLIGHT_MAX 0xFF
390#endif
391
1da177e4
LT		 392#ifdef __KERNEL__
393
394#include <linux/fs.h>
395#include <linux/init.h>
1da177e4
LT		 396#include <linux/device.h>
397#include <linux/workqueue.h>
1da177e4
LT		 398#include <linux/notifier.h>
399#include <linux/list.h>
2b257425 400#include <linux/backlight.h>
1da177e4
LT		 401#include <asm/io.h>
402
403struct vm_area_struct;
404struct fb_info;
405struct device;
406struct file;
407
408/* Definitions below are used in the parsed monitor specs */
409#define FB_DPMS_ACTIVE_OFF 1
410#define FB_DPMS_SUSPEND 2
411#define FB_DPMS_STANDBY 4
412
413#define FB_DISP_DDI 1
414#define FB_DISP_ANA_700_300 2
415#define FB_DISP_ANA_714_286 4
416#define FB_DISP_ANA_1000_400 8
417#define FB_DISP_ANA_700_000 16
418
419#define FB_DISP_MONO 32
420#define FB_DISP_RGB 64
421#define FB_DISP_MULTI 128
422#define FB_DISP_UNKNOWN 256
423
424#define FB_SIGNAL_NONE 0
425#define FB_SIGNAL_BLANK_BLANK 1
426#define FB_SIGNAL_SEPARATE 2
427#define FB_SIGNAL_COMPOSITE 4
428#define FB_SIGNAL_SYNC_ON_GREEN 8
429#define FB_SIGNAL_SERRATION_ON 16
430
431#define FB_MISC_PRIM_COLOR 1
432#define FB_MISC_1ST_DETAIL 2 /* First Detailed Timing is preferred */
433struct fb_chroma {
434 __u32 redx; /* in fraction of 1024 */
435 __u32 greenx;
436 __u32 bluex;
437 __u32 whitex;
438 __u32 redy;
439 __u32 greeny;
440 __u32 bluey;
441 __u32 whitey;
442};
443
444struct fb_monspecs {
445 struct fb_chroma chroma;
446 struct fb_videomode *modedb; /* mode database */
447 __u8 manufacturer[4]; /* Manufacturer */
448 __u8 monitor[14]; /* Monitor String */
449 __u8 serial_no[14]; /* Serial Number */
450 __u8 ascii[14]; /* ? */
451 __u32 modedb_len; /* mode database length */
452 __u32 model; /* Monitor Model */
453 __u32 serial; /* Serial Number - Integer */
454 __u32 year; /* Year manufactured */
455 __u32 week; /* Week Manufactured */
456 __u32 hfmin; /* hfreq lower limit (Hz) */
457 __u32 hfmax; /* hfreq upper limit (Hz) */
458 __u32 dclkmin; /* pixelclock lower limit (Hz) */
459 __u32 dclkmax; /* pixelclock upper limit (Hz) */
460 __u16 input; /* display type - see FB_DISP_* */
461 __u16 dpms; /* DPMS support - see FB_DPMS_ */
462 __u16 signal; /* Signal Type - see FB_SIGNAL_* */
463 __u16 vfmin; /* vfreq lower limit (Hz) */
464 __u16 vfmax; /* vfreq upper limit (Hz) */
465 __u16 gamma; /* Gamma - in fractions of 100 */
466 __u16 gtf : 1; /* supports GTF */
467 __u16 misc; /* Misc flags - see FB_MISC_* */
468 __u8 version; /* EDID version... */
469 __u8 revision; /* ...and revision */
470 __u8 max_x; /* Maximum horizontal size (cm) */
471 __u8 max_y; /* Maximum vertical size (cm) */
472};
473
474struct fb_cmap_user {
475 __u32 start; /* First entry */
476 __u32 len; /* Number of entries */
477 __u16 __user *red; /* Red values */
478 __u16 __user *green;
479 __u16 __user *blue;
480 __u16 __user *transp; /* transparency, can be NULL */
481};
482
483struct fb_image_user {
484 __u32 dx; /* Where to place image */
485 __u32 dy;
486 __u32 width; /* Size of image */
487 __u32 height;
488 __u32 fg_color; /* Only used when a mono bitmap */
489 __u32 bg_color;
490 __u8 depth; /* Depth of the image */
491 const char __user *data; /* Pointer to image data */
492 struct fb_cmap_user cmap; /* color map info */
493};
494
495struct fb_cursor_user {
496 __u16 set; /* what to set */
497 __u16 enable; /* cursor on/off */
498 __u16 rop; /* bitop operation */
499 const char __user *mask; /* cursor mask bits */
500 struct fbcurpos hot; /* cursor hot spot */
501 struct fb_image_user image; /* Cursor image */
502};
503
504/*
505 * Register/unregister for framebuffer events
506 */
507
508/* The resolution of the passed in fb_info about to change */
509#define FB_EVENT_MODE_CHANGE 0x01
510/* The display on this fb_info is beeing suspended, no access to the
511 * framebuffer is allowed any more after that call returns
512 */
513#define FB_EVENT_SUSPEND 0x02
514/* The display on this fb_info was resumed, you can restore the display
515 * if you own it
516 */
517#define FB_EVENT_RESUME 0x03
518/* An entry from the modelist was removed */
519#define FB_EVENT_MODE_DELETE 0x04
520/* A driver registered itself */
521#define FB_EVENT_FB_REGISTERED 0x05
e614b18d
AD		 522/* A driver unregistered itself */
523#define FB_EVENT_FB_UNREGISTERED 0x06
e4fc2761 524/* CONSOLE-SPECIFIC: get console to framebuffer mapping */
e614b18d 525#define FB_EVENT_GET_CONSOLE_MAP 0x07
e4fc2761 526/* CONSOLE-SPECIFIC: set console to framebuffer mapping */
e614b18d 527#define FB_EVENT_SET_CONSOLE_MAP 0x08
994efacd 528/* A hardware display blank change occured */
e614b18d 529#define FB_EVENT_BLANK 0x09
1da177e4 530/* Private modelist is to be replaced */
e614b18d 531#define FB_EVENT_NEW_MODELIST 0x0A
7726e9e1
AD		 532/* The resolution of the passed in fb_info about to change and
533 all vc's should be changed */
e614b18d 534#define FB_EVENT_MODE_CHANGE_ALL 0x0B
994efacd
RP		 535/* A software display blank change occured */
536#define FB_EVENT_CONBLANK 0x0C
38a3dc51
AD		 537/* Get drawing requirements */
538#define FB_EVENT_GET_REQ 0x0D
cfafca80
JB		 539/* Unbind from the console if possible */
540#define FB_EVENT_FB_UNBIND 0x0E
1da177e4
LT		 541
542struct fb_event {
543 struct fb_info *info;
544 void *data;
545};
546
38a3dc51
AD		 547struct fb_blit_caps {
548 u32 x;
549 u32 y;
550 u32 len;
551 u32 flags;
552};
1da177e4
LT		 553
554extern int fb_register_client(struct notifier_block *nb);
555extern int fb_unregister_client(struct notifier_block *nb);
256154fb 556extern int fb_notifier_call_chain(unsigned long val, void *v);
1da177e4
LT		 557/*
558 * Pixmap structure definition
559 *
560 * The purpose of this structure is to translate data
561 * from the hardware independent format of fbdev to what
562 * format the hardware needs.
563 */
564
565#define FB_PIXMAP_DEFAULT 1 /* used internally by fbcon */
566#define FB_PIXMAP_SYSTEM 2 /* memory is in system RAM */
567#define FB_PIXMAP_IO 4 /* memory is iomapped */
568#define FB_PIXMAP_SYNC 256 /* set if GPU can DMA */
569
570struct fb_pixmap {
571 u8 *addr; /* pointer to memory */
572 u32 size; /* size of buffer in bytes */
573 u32 offset; /* current offset to buffer */
574 u32 buf_align; /* byte alignment of each bitmap */
575 u32 scan_align; /* alignment per scanline */
f5a9951c 576 u32 access_align; /* alignment per read/write (bits) */
1da177e4 577 u32 flags; /* see FB_PIXMAP_* */
bf26ad72
AD		 578 u32 blit_x; /* supported bit block dimensions (1-32)*/
579 u32 blit_y; /* Format: blit_x = 1 << (width - 1) */
580 /* blit_y = 1 << (height - 1) */
581 /* if 0, will be set to 0xffffffff (all)*/
1da177e4 582 /* access methods */
f5a9951c
JS		 583 void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size);
584 void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size);
1da177e4
LT		 585};
586
60b59bea
JK		 587#ifdef CONFIG_FB_DEFERRED_IO
588struct fb_deferred_io {
589 /* delay between mkwrite and deferred handler */
590 unsigned long delay;
591 struct mutex lock; /* mutex that protects the page list */
592 struct list_head pagelist; /* list of touched pages */
593 /* callback */
594 void (*deferred_io)(struct fb_info *info, struct list_head *pagelist);
595};
596#endif
1da177e4
LT		 597
598/*
599 * Frame buffer operations
600 *
601 * LOCKING NOTE: those functions must _ALL_ be called with the console
b3c2ffd5 602 * semaphore held, this is the only suitable locking mechanism we have
1da177e4
LT		 603 * in 2.6. Some may be called at interrupt time at this point though.
604 */
605
606struct fb_ops {
607 /* open/release and usage marking */
608 struct module *owner;
609 int (*fb_open)(struct fb_info *info, int user);
610 int (*fb_release)(struct fb_info *info, int user);
611
612 /* For framebuffers with strange non linear layouts or that do not
613 * work with normal memory mapped access
614 */
3f9b0880
AD		 615 ssize_t (*fb_read)(struct fb_info *info, char __user *buf,
616 size_t count, loff_t *ppos);
617 ssize_t (*fb_write)(struct fb_info *info, const char __user *buf,
618 size_t count, loff_t *ppos);
1da177e4
LT		 619
620 /* checks var and eventually tweaks it to something supported,
621 * DO NOT MODIFY PAR */
622 int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
623
624 /* set the video mode according to info->var */
625 int (*fb_set_par)(struct fb_info *info);
626
627 /* set color register */
628 int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green,
629 unsigned blue, unsigned transp, struct fb_info *info);
630
71494376
BH		 631 /* set color registers in batch */
632 int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info);
633
1da177e4
LT		 634 /* blank display */
635 int (*fb_blank)(int blank, struct fb_info *info);
636
637 /* pan display */
638 int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info);
639
640 /* Draws a rectangle */
641 void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);
642 /* Copy data from area to another */
643 void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);
644 /* Draws a image to the display */
645 void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
646
647 /* Draws cursor */
648 int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
649
650 /* Rotates the display */
651 void (*fb_rotate)(struct fb_info *info, int angle);
652
653 /* wait for blit idle, optional */
654 int (*fb_sync)(struct fb_info *info);
655
656 /* perform fb specific ioctl (optional) */
67a6680d
CH		 657 int (*fb_ioctl)(struct fb_info *info, unsigned int cmd,
658 unsigned long arg);
1da177e4
LT		 659
660 /* Handle 32bit compat ioctl (optional) */
67a6680d
CH		 661 int (*fb_compat_ioctl)(struct fb_info *info, unsigned cmd,
662 unsigned long arg);
1da177e4
LT		 663
664 /* perform fb specific mmap */
216d526c 665 int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma);
47434847
AD		 666
667 /* save current hardware state */
668 void (*fb_save_state)(struct fb_info *info);
669
670 /* restore saved state */
671 void (*fb_restore_state)(struct fb_info *info);
38a3dc51
AD		 672
673 /* get capability given var */
674 void (*fb_get_caps)(struct fb_info *info, struct fb_blit_caps *caps,
675 struct fb_var_screeninfo *var);
1da177e4
LT		 676};
677
678#ifdef CONFIG_FB_TILEBLITTING
1da177e4
LT		 679#define FB_TILE_CURSOR_NONE 0
680#define FB_TILE_CURSOR_UNDERLINE 1
681#define FB_TILE_CURSOR_LOWER_THIRD 2
682#define FB_TILE_CURSOR_LOWER_HALF 3
683#define FB_TILE_CURSOR_TWO_THIRDS 4
684#define FB_TILE_CURSOR_BLOCK 5
685
686struct fb_tilemap {
687 __u32 width; /* width of each tile in pixels */
688 __u32 height; /* height of each tile in scanlines */
689 __u32 depth; /* color depth of each tile */
690 __u32 length; /* number of tiles in the map */
2f4516db 691 const __u8 *data; /* actual tile map: a bitmap array, packed
1da177e4
LT		 692 to the nearest byte */
693};
694
695struct fb_tilerect {
696 __u32 sx; /* origin in the x-axis */
697 __u32 sy; /* origin in the y-axis */
698 __u32 width; /* number of tiles in the x-axis */
699 __u32 height; /* number of tiles in the y-axis */
700 __u32 index; /* what tile to use: index to tile map */
701 __u32 fg; /* foreground color */
702 __u32 bg; /* background color */
703 __u32 rop; /* raster operation */
704};
705
706struct fb_tilearea {
707 __u32 sx; /* source origin in the x-axis */
708 __u32 sy; /* source origin in the y-axis */
709 __u32 dx; /* destination origin in the x-axis */
710 __u32 dy; /* destination origin in the y-axis */
711 __u32 width; /* number of tiles in the x-axis */
712 __u32 height; /* number of tiles in the y-axis */
713};
714
715struct fb_tileblit {
716 __u32 sx; /* origin in the x-axis */
717 __u32 sy; /* origin in the y-axis */
718 __u32 width; /* number of tiles in the x-axis */
719 __u32 height; /* number of tiles in the y-axis */
720 __u32 fg; /* foreground color */
721 __u32 bg; /* background color */
722 __u32 length; /* number of tiles to draw */
723 __u32 *indices; /* array of indices to tile map */
724};
725
726struct fb_tilecursor {
727 __u32 sx; /* cursor position in the x-axis */
728 __u32 sy; /* cursor position in the y-axis */
729 __u32 mode; /* 0 = erase, 1 = draw */
730 __u32 shape; /* see FB_TILE_CURSOR_* */
731 __u32 fg; /* foreground color */
732 __u32 bg; /* background color */
733};
734
735struct fb_tile_ops {
736 /* set tile characteristics */
737 void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map);
738
739 /* all dimensions from hereon are in terms of tiles */
740
741 /* move a rectangular region of tiles from one area to another*/
742 void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area);
743 /* fill a rectangular region with a tile */
744 void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect);
745 /* copy an array of tiles */
746 void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit);
747 /* cursor */
748 void (*fb_tilecursor)(struct fb_info *info,
749 struct fb_tilecursor *cursor);
11f11d52
AD		 750 /* get maximum length of the tile map */
751 int (*fb_get_tilemax)(struct fb_info *info);
1da177e4
LT		 752};
753#endif /* CONFIG_FB_TILEBLITTING */
754
755/* FBINFO_* = fb_info.flags bit flags */
756#define FBINFO_MODULE 0x0001 /* Low-level driver is a module */
757#define FBINFO_HWACCEL_DISABLED 0x0002
758 /* When FBINFO_HWACCEL_DISABLED is set:
759 * Hardware acceleration is turned off. Software implementations
760 * of required functions (copyarea(), fillrect(), and imageblit())
761 * takes over; acceleration engine should be in a quiescent state */
762
763/* hints */
764#define FBINFO_PARTIAL_PAN_OK 0x0040 /* otw use pan only for double-buffering */
765#define FBINFO_READS_FAST 0x0080 /* soft-copy faster than rendering */
766
767/* hardware supported ops */
768/* semantics: when a bit is set, it indicates that the operation is
769 * accelerated by hardware.
770 * required functions will still work even if the bit is not set.
771 * optional functions may not even exist if the flag bit is not set.
772 */
773#define FBINFO_HWACCEL_NONE 0x0000
774#define FBINFO_HWACCEL_COPYAREA 0x0100 /* required */
775#define FBINFO_HWACCEL_FILLRECT 0x0200 /* required */
776#define FBINFO_HWACCEL_IMAGEBLIT 0x0400 /* required */
777#define FBINFO_HWACCEL_ROTATE 0x0800 /* optional */
778#define FBINFO_HWACCEL_XPAN 0x1000 /* optional */
779#define FBINFO_HWACCEL_YPAN 0x2000 /* optional */
780#define FBINFO_HWACCEL_YWRAP 0x4000 /* optional */
781
782#define FBINFO_MISC_USEREVENT 0x10000 /* event request
783 from userspace */
784#define FBINFO_MISC_TILEBLITTING 0x20000 /* use tile blitting */
785
39942fd8
KP		 786/* A driver may set this flag to indicate that it does want a set_par to be
787 * called every time when fbcon_switch is executed. The advantage is that with
7f927fcc 788 * this flag set you can really be sure that set_par is always called before
39942fd8
KP		 789 * any of the functions dependant on the correct hardware state or altering
790 * that state, even if you are using some broken X releases. The disadvantage
791 * is that it introduces unwanted delays to every console switch if set_par
792 * is slow. It is a good idea to try this flag in the drivers initialization
793 * code whenever there is a bug report related to switching between X and the
794 * framebuffer console.
795 */
796#define FBINFO_MISC_ALWAYS_SETPAR 0x40000
797
e4c690e0
AV		 798/*
799 * Host and GPU endianness differ.
800 */
801#define FBINFO_FOREIGN_ENDIAN 0x100000
802/*
803 * Big endian math. This is the same flags as above, but with different
804 * meaning, it is set by the fb subsystem depending FOREIGN_ENDIAN flag
805 * and host endianness. Drivers should not use this flag.
806 */
807#define FBINFO_BE_MATH 0x100000
808
1da177e4
LT		 809struct fb_info {
810 int node;
811 int flags;
3e680aae 812 struct mutex lock; /* Lock for open/release/ioctl funcs */
1da177e4
LT		 813 struct fb_var_screeninfo var; /* Current var */
814 struct fb_fix_screeninfo fix; /* Current fix */
815 struct fb_monspecs monspecs; /* Current Monitor specs */
816 struct work_struct queue; /* Framebuffer event queue */
817 struct fb_pixmap pixmap; /* Image hardware mapper */
818 struct fb_pixmap sprite; /* Cursor hardware mapper */
819 struct fb_cmap cmap; /* Current cmap */
820 struct list_head modelist; /* mode list */
821 struct fb_videomode *mode; /* current mode */
5474c120
MH		 822
823#ifdef CONFIG_FB_BACKLIGHT
5474c120 824 /* assigned backlight device */
37ce69a5
RP		 825 /* set before framebuffer registration,
826 remove after unregister */
5474c120
MH		 827 struct backlight_device *bl_dev;
828
829 /* Backlight level curve */
37ce69a5 830 struct mutex bl_curve_mutex;
5474c120
MH		 831 u8 bl_curve[FB_BACKLIGHT_LEVELS];
832#endif
60b59bea
JK		 833#ifdef CONFIG_FB_DEFERRED_IO
834 struct delayed_work deferred_work;
835 struct fb_deferred_io *fbdefio;
836#endif
5474c120 837
1da177e4 838 struct fb_ops *fbops;
78cde088
GKH		 839 struct device *device; /* This is the parent */
840 struct device *dev; /* This is this fb device */
1a6600be 841 int class_flag; /* private sysfs flags */
1da177e4
LT		 842#ifdef CONFIG_FB_TILEBLITTING
843 struct fb_tile_ops *tileops; /* Tile Blitting */
844#endif
845 char __iomem *screen_base; /* Virtual address */
846 unsigned long screen_size; /* Amount of ioremapped VRAM or 0 */
847 void *pseudo_palette; /* Fake palette of 16 colors */
848#define FBINFO_STATE_RUNNING 0
849#define FBINFO_STATE_SUSPENDED 1
850 u32 state; /* Hardware state i.e suspend */
851 void *fbcon_par; /* fbcon use-only private area */
852 /* From here on everything is device dependent */
853 void *par;
854};
855
856#ifdef MODULE
857#define FBINFO_DEFAULT FBINFO_MODULE
858#else
859#define FBINFO_DEFAULT 0
860#endif
861
862// This will go away
863#define FBINFO_FLAG_MODULE FBINFO_MODULE
864#define FBINFO_FLAG_DEFAULT FBINFO_DEFAULT
865
866/* This will go away
867 * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags
868 * when it wants to turn the acceleration engine on. This is
869 * really a separate operation, and should be modified via sysfs.
870 * But for now, we leave it broken with the following define
871 */
872#define STUPID_ACCELF_TEXT_SHIT
873
874// This will go away
875#if defined(__sparc__)
876
877/* We map all of our framebuffers such that big-endian accesses
878 * are what we want, so the following is sufficient.
879 */
880
881// This will go away
882#define fb_readb sbus_readb
883#define fb_readw sbus_readw
884#define fb_readl sbus_readl
885#define fb_readq sbus_readq
886#define fb_writeb sbus_writeb
887#define fb_writew sbus_writew
888#define fb_writel sbus_writel
889#define fb_writeq sbus_writeq
890#define fb_memset sbus_memset_io
891
209aa4fd 892#elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || defined(__sh__) || defined(__powerpc__) || defined(__avr32__)
1da177e4
LT		 893
894#define fb_readb __raw_readb
895#define fb_readw __raw_readw
896#define fb_readl __raw_readl
897#define fb_readq __raw_readq
898#define fb_writeb __raw_writeb
899#define fb_writew __raw_writew
900#define fb_writel __raw_writel
901#define fb_writeq __raw_writeq
902#define fb_memset memset_io
903
904#else
905
906#define fb_readb(addr) (*(volatile u8 *) (addr))
907#define fb_readw(addr) (*(volatile u16 *) (addr))
908#define fb_readl(addr) (*(volatile u32 *) (addr))
909#define fb_readq(addr) (*(volatile u64 *) (addr))
910#define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
911#define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
912#define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
913#define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b))
914#define fb_memset memset
915
be0d9b6c
AD		 916#endif
917
e4c690e0
AV		 918#define FB_LEFT_POS(p, bpp) (fb_be_math(p) ? (32 - (bpp)) : 0)
919#define FB_SHIFT_HIGH(p, val, bits) (fb_be_math(p) ? (val) >> (bits) : \
920 (val) << (bits))
921#define FB_SHIFT_LOW(p, val, bits) (fb_be_math(p) ? (val) << (bits) : \
922 (val) >> (bits))
1da177e4
LT		 923
924 /*
925 * `Generic' versions of the frame buffer device operations
926 */
927
928extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var);
929extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var);
930extern int fb_blank(struct fb_info *info, int blank);
1da177e4
LT		 931extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
932extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
933extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image);
68648ed1
AD		 934/*
935 * Drawing operations where framebuffer is in system RAM
936 */
937extern void sys_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
938extern void sys_copyarea(struct fb_info *info, const struct fb_copyarea *area);
939extern void sys_imageblit(struct fb_info *info, const struct fb_image *image);
09aaf268
AD		 940extern ssize_t fb_sys_read(struct fb_info *info, char __user *buf,
941 size_t count, loff_t *ppos);
942extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
943 size_t count, loff_t *ppos);
1da177e4
LT		 944
945/* drivers/video/fbmem.c */
946extern int register_framebuffer(struct fb_info *fb_info);
947extern int unregister_framebuffer(struct fb_info *fb_info);
9c44e5f6
AD		 948extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
949extern int fb_show_logo(struct fb_info *fb_info, int rotate);
1da177e4 950extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);
f1ab5dac 951extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx,
1da177e4 952 u32 height, u32 shift_high, u32 shift_low, u32 mod);
f1ab5dac 953extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height);
1da177e4 954extern void fb_set_suspend(struct fb_info *info, int state);
b8c90945
AD		 955extern int fb_get_color_depth(struct fb_var_screeninfo *var,
956 struct fb_fix_screeninfo *fix);
1da177e4
LT		 957extern int fb_get_options(char *name, char **option);
958extern int fb_new_modelist(struct fb_info *info);
959
960extern struct fb_info *registered_fb[FB_MAX];
961extern int num_registered_fb;
9db71a18 962extern struct class *fb_class;
1da177e4 963
1f5e31d7
AR		 964static inline int lock_fb_info(struct fb_info *info)
965{
966 mutex_lock(&info->lock);
967 if (!info->fbops) {
968 mutex_unlock(&info->lock);
969 return 0;
970 }
971 return 1;
972}
973
974static inline void unlock_fb_info(struct fb_info *info)
975{
976 mutex_unlock(&info->lock);
977}
978
829e79b6
AD		 979static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch,
980 u8 *src, u32 s_pitch, u32 height)
981{
982 int i, j;
983
984 d_pitch -= s_pitch;
985
986 for (i = height; i--; ) {
987 /* s_pitch is a few bytes at the most, memcpy is suboptimal */
988 for (j = 0; j < s_pitch; j++)
989 *dst++ = *src++;
990 dst += d_pitch;
991 }
992}
993
60b59bea
JK		 994/* drivers/video/fb_defio.c */
995extern void fb_deferred_io_init(struct fb_info *info);
d847471d
IC		 996extern void fb_deferred_io_open(struct fb_info *info,
997 struct inode *inode,
998 struct file *file);
60b59bea 999extern void fb_deferred_io_cleanup(struct fb_info *info);
5e841b88
PM		 1000extern int fb_deferred_io_fsync(struct file *file, struct dentry *dentry,
1001 int datasync);
60b59bea 1002
e4c690e0
AV		 1003static inline bool fb_be_math(struct fb_info *info)
1004{
1005#ifdef CONFIG_FB_FOREIGN_ENDIAN
1006#if defined(CONFIG_FB_BOTH_ENDIAN)
1007 return info->flags & FBINFO_BE_MATH;
1008#elif defined(CONFIG_FB_BIG_ENDIAN)
1009 return true;
1010#elif defined(CONFIG_FB_LITTLE_ENDIAN)
1011 return false;
1012#endif /* CONFIG_FB_BOTH_ENDIAN */
1013#else
1014#ifdef __BIG_ENDIAN
1015 return true;
1016#else
1017 return false;
1018#endif /* __BIG_ENDIAN */
1019#endif /* CONFIG_FB_FOREIGN_ENDIAN */
1020}
1021
1da177e4
LT		 1022/* drivers/video/fbsysfs.c */
1023extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);
1024extern void framebuffer_release(struct fb_info *info);
78cde088
GKH		 1025extern int fb_init_device(struct fb_info *fb_info);
1026extern void fb_cleanup_device(struct fb_info *head);
5474c120 1027extern void fb_bl_default_curve(struct fb_info *fb_info, u8 off, u8 min, u8 max);
1da177e4
LT		 1028
1029/* drivers/video/fbmon.c */
1030#define FB_MAXTIMINGS 0
1031#define FB_VSYNCTIMINGS 1
1032#define FB_HSYNCTIMINGS 2
1033#define FB_DCLKTIMINGS 3
1034#define FB_IGNOREMON 0x100
1035
1036#define FB_MODE_IS_UNKNOWN 0
1037#define FB_MODE_IS_DETAILED 1
1038#define FB_MODE_IS_STANDARD 2
1039#define FB_MODE_IS_VESA 4
1040#define FB_MODE_IS_CALCULATED 8
1041#define FB_MODE_IS_FIRST 16
1042#define FB_MODE_IS_FROM_VAR 32
1043
1da177e4
LT		 1044extern int fbmon_dpms(const struct fb_info *fb_info);
1045extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var,
1046 struct fb_info *info);
1047extern int fb_validate_mode(const struct fb_var_screeninfo *var,
1048 struct fb_info *info);
1049extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);
5e518d76
AD		 1050extern const unsigned char *fb_firmware_edid(struct device *device);
1051extern void fb_edid_to_monspecs(unsigned char *edid,
1052 struct fb_monspecs *specs);
1da177e4 1053extern void fb_destroy_modedb(struct fb_videomode *modedb);
96fe6a21 1054extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb);
fc5891c8 1055extern unsigned char *fb_ddc_read(struct i2c_adapter *adapter);
1da177e4
LT		 1056
1057/* drivers/video/modedb.c */
1058#define VESA_MODEDB_SIZE 34
1059extern void fb_var_to_videomode(struct fb_videomode *mode,
9791d763 1060 const struct fb_var_screeninfo *var);
1da177e4 1061extern void fb_videomode_to_var(struct fb_var_screeninfo *var,
9791d763
GU		 1062 const struct fb_videomode *mode);
1063extern int fb_mode_is_equal(const struct fb_videomode *mode1,
1064 const struct fb_videomode *mode2);
1065extern int fb_add_videomode(const struct fb_videomode *mode,
1066 struct list_head *head);
1067extern void fb_delete_videomode(const struct fb_videomode *mode,
1da177e4 1068 struct list_head *head);
9791d763
GU		 1069extern const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var,
1070 struct list_head *head);
1071extern const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var,
1072 struct list_head *head);
1073extern const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode,
1074 struct list_head *head);
1da177e4 1075extern void fb_destroy_modelist(struct list_head *head);
9791d763 1076extern void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num,
1da177e4 1077 struct list_head *head);
9791d763
GU		 1078extern const struct fb_videomode *fb_find_best_display(const struct fb_monspecs *specs,
1079 struct list_head *head);
1da177e4
LT		 1080
1081/* drivers/video/fbcmap.c */
1082extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);
1083extern void fb_dealloc_cmap(struct fb_cmap *cmap);
adf6b206
HD		 1084extern int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to);
1085extern int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to);
1da177e4
LT		 1086extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info);
1087extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info);
adf6b206 1088extern const struct fb_cmap *fb_default_cmap(int len);
1da177e4
LT		 1089extern void fb_invert_cmaps(void);
1090
1091struct fb_videomode {
1092 const char *name; /* optional */
1093 u32 refresh; /* optional */
1094 u32 xres;
1095 u32 yres;
1096 u32 pixclock;
1097 u32 left_margin;
1098 u32 right_margin;
1099 u32 upper_margin;
1100 u32 lower_margin;
1101 u32 hsync_len;
1102 u32 vsync_len;
1103 u32 sync;
1104 u32 vmode;
1105 u32 flag;
1106};
1107
9a054fba 1108extern const char *fb_mode_option;
1da177e4
LT		 1109extern const struct fb_videomode vesa_modes[];
1110
1111struct fb_modelist {
1112 struct list_head list;
1113 struct fb_videomode mode;
1114};
1115
1116extern int fb_find_mode(struct fb_var_screeninfo *var,
1117 struct fb_info *info, const char *mode_option,
1118 const struct fb_videomode *db,
1119 unsigned int dbsize,
1120 const struct fb_videomode *default_mode,
1121 unsigned int default_bpp);
1122
1123#endif /* __KERNEL__ */
1124
1125#endif /* _LINUX_FB_H */
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