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[pohmelfs.git] / include / linux / fb.h
blobc18122f40543406a46ceb8ac3802a92ec4d2869b
1 #ifndef _LINUX_FB_H
2 #define _LINUX_FB_H
3
4 #include <linux/types.h>
5 #include <linux/i2c.h>
6 #ifdef __KERNEL__
7 #include <linux/kgdb.h>
8 #endif /* __KERNEL__ */
9
10 /* Definitions of frame buffers */
11
12 #define FB_MAX 32 /* sufficient for now */
13
14 /* ioctls
15 0x46 is 'F' */
16 #define FBIOGET_VSCREENINFO 0x4600
17 #define FBIOPUT_VSCREENINFO 0x4601
18 #define FBIOGET_FSCREENINFO 0x4602
19 #define FBIOGETCMAP 0x4604
20 #define FBIOPUTCMAP 0x4605
21 #define FBIOPAN_DISPLAY 0x4606
22 #ifdef __KERNEL__
23 #define FBIO_CURSOR _IOWR('F', 0x08, struct fb_cursor_user)
24 #else
25 #define FBIO_CURSOR _IOWR('F', 0x08, struct fb_cursor)
26 #endif
27 /* 0x4607-0x460B are defined below */
28 /* #define FBIOGET_MONITORSPEC 0x460C */
29 /* #define FBIOPUT_MONITORSPEC 0x460D */
30 /* #define FBIOSWITCH_MONIBIT 0x460E */
31 #define FBIOGET_CON2FBMAP 0x460F
32 #define FBIOPUT_CON2FBMAP 0x4610
33 #define FBIOBLANK 0x4611 /* arg: 0 or vesa level + 1 */
34 #define FBIOGET_VBLANK _IOR('F', 0x12, struct fb_vblank)
35 #define FBIO_ALLOC 0x4613
36 #define FBIO_FREE 0x4614
37 #define FBIOGET_GLYPH 0x4615
38 #define FBIOGET_HWCINFO 0x4616
39 #define FBIOPUT_MODEINFO 0x4617
40 #define FBIOGET_DISPINFO 0x4618
41 #define FBIO_WAITFORVSYNC _IOW('F', 0x20, __u32)
42
43 #define FB_TYPE_PACKED_PIXELS 0 /* Packed Pixels */
44 #define FB_TYPE_PLANES 1 /* Non interleaved planes */
45 #define FB_TYPE_INTERLEAVED_PLANES 2 /* Interleaved planes */
46 #define FB_TYPE_TEXT 3 /* Text/attributes */
47 #define FB_TYPE_VGA_PLANES 4 /* EGA/VGA planes */
48 #define FB_TYPE_FOURCC 5 /* Type identified by a V4L2 FOURCC */
49
50 #define FB_AUX_TEXT_MDA 0 /* Monochrome text */
51 #define FB_AUX_TEXT_CGA 1 /* CGA/EGA/VGA Color text */
52 #define FB_AUX_TEXT_S3_MMIO 2 /* S3 MMIO fasttext */
53 #define FB_AUX_TEXT_MGA_STEP16 3 /* MGA Millenium I: text, attr, 14 reserved bytes */
54 #define FB_AUX_TEXT_MGA_STEP8 4 /* other MGAs: text, attr, 6 reserved bytes */
55 #define FB_AUX_TEXT_SVGA_GROUP 8 /* 8-15: SVGA tileblit compatible modes */
56 #define FB_AUX_TEXT_SVGA_MASK 7 /* lower three bits says step */
57 #define FB_AUX_TEXT_SVGA_STEP2 8 /* SVGA text mode: text, attr */
58 #define FB_AUX_TEXT_SVGA_STEP4 9 /* SVGA text mode: text, attr, 2 reserved bytes */
59 #define FB_AUX_TEXT_SVGA_STEP8 10 /* SVGA text mode: text, attr, 6 reserved bytes */
60 #define FB_AUX_TEXT_SVGA_STEP16 11 /* SVGA text mode: text, attr, 14 reserved bytes */
61 #define FB_AUX_TEXT_SVGA_LAST 15 /* reserved up to 15 */
62
63 #define FB_AUX_VGA_PLANES_VGA4 0 /* 16 color planes (EGA/VGA) */
64 #define FB_AUX_VGA_PLANES_CFB4 1 /* CFB4 in planes (VGA) */
65 #define FB_AUX_VGA_PLANES_CFB8 2 /* CFB8 in planes (VGA) */
66
67 #define FB_VISUAL_MONO01 0 /* Monochr. 1=Black 0=White */
68 #define FB_VISUAL_MONO10 1 /* Monochr. 1=White 0=Black */
69 #define FB_VISUAL_TRUECOLOR 2 /* True color */
70 #define FB_VISUAL_PSEUDOCOLOR 3 /* Pseudo color (like atari) */
71 #define FB_VISUAL_DIRECTCOLOR 4 /* Direct color */
72 #define FB_VISUAL_STATIC_PSEUDOCOLOR 5 /* Pseudo color readonly */
73 #define FB_VISUAL_FOURCC 6 /* Visual identified by a V4L2 FOURCC */
74
75 #define FB_ACCEL_NONE 0 /* no hardware accelerator */
76 #define FB_ACCEL_ATARIBLITT 1 /* Atari Blitter */
77 #define FB_ACCEL_AMIGABLITT 2 /* Amiga Blitter */
78 #define FB_ACCEL_S3_TRIO64 3 /* Cybervision64 (S3 Trio64) */
79 #define FB_ACCEL_NCR_77C32BLT 4 /* RetinaZ3 (NCR 77C32BLT) */
80 #define FB_ACCEL_S3_VIRGE 5 /* Cybervision64/3D (S3 ViRGE) */
81 #define FB_ACCEL_ATI_MACH64GX 6 /* ATI Mach 64GX family */
82 #define FB_ACCEL_DEC_TGA 7 /* DEC 21030 TGA */
83 #define FB_ACCEL_ATI_MACH64CT 8 /* ATI Mach 64CT family */
84 #define FB_ACCEL_ATI_MACH64VT 9 /* ATI Mach 64CT family VT class */
85 #define FB_ACCEL_ATI_MACH64GT 10 /* ATI Mach 64CT family GT class */
86 #define FB_ACCEL_SUN_CREATOR 11 /* Sun Creator/Creator3D */
87 #define FB_ACCEL_SUN_CGSIX 12 /* Sun cg6 */
88 #define FB_ACCEL_SUN_LEO 13 /* Sun leo/zx */
89 #define FB_ACCEL_IMS_TWINTURBO 14 /* IMS Twin Turbo */
90 #define FB_ACCEL_3DLABS_PERMEDIA2 15 /* 3Dlabs Permedia 2 */
91 #define FB_ACCEL_MATROX_MGA2064W 16 /* Matrox MGA2064W (Millenium) */
92 #define FB_ACCEL_MATROX_MGA1064SG 17 /* Matrox MGA1064SG (Mystique) */
93 #define FB_ACCEL_MATROX_MGA2164W 18 /* Matrox MGA2164W (Millenium II) */
94 #define FB_ACCEL_MATROX_MGA2164W_AGP 19 /* Matrox MGA2164W (Millenium II) */
95 #define FB_ACCEL_MATROX_MGAG100 20 /* Matrox G100 (Productiva G100) */
96 #define FB_ACCEL_MATROX_MGAG200 21 /* Matrox G200 (Myst, Mill, ...) */
97 #define FB_ACCEL_SUN_CG14 22 /* Sun cgfourteen */
98 #define FB_ACCEL_SUN_BWTWO 23 /* Sun bwtwo */
99 #define FB_ACCEL_SUN_CGTHREE 24 /* Sun cgthree */
100 #define FB_ACCEL_SUN_TCX 25 /* Sun tcx */
101 #define FB_ACCEL_MATROX_MGAG400 26 /* Matrox G400 */
102 #define FB_ACCEL_NV3 27 /* nVidia RIVA 128 */
103 #define FB_ACCEL_NV4 28 /* nVidia RIVA TNT */
104 #define FB_ACCEL_NV5 29 /* nVidia RIVA TNT2 */
105 #define FB_ACCEL_CT_6555x 30 /* C&T 6555x */
106 #define FB_ACCEL_3DFX_BANSHEE 31 /* 3Dfx Banshee */
107 #define FB_ACCEL_ATI_RAGE128 32 /* ATI Rage128 family */
108 #define FB_ACCEL_IGS_CYBER2000 33 /* CyberPro 2000 */
109 #define FB_ACCEL_IGS_CYBER2010 34 /* CyberPro 2010 */
110 #define FB_ACCEL_IGS_CYBER5000 35 /* CyberPro 5000 */
111 #define FB_ACCEL_SIS_GLAMOUR 36 /* SiS 300/630/540 */
112 #define FB_ACCEL_3DLABS_PERMEDIA3 37 /* 3Dlabs Permedia 3 */
113 #define FB_ACCEL_ATI_RADEON 38 /* ATI Radeon family */
114 #define FB_ACCEL_I810 39 /* Intel 810/815 */
115 #define FB_ACCEL_SIS_GLAMOUR_2 40 /* SiS 315, 650, 740 */
116 #define FB_ACCEL_SIS_XABRE 41 /* SiS 330 ("Xabre") */
117 #define FB_ACCEL_I830 42 /* Intel 830M/845G/85x/865G */
118 #define FB_ACCEL_NV_10 43 /* nVidia Arch 10 */
119 #define FB_ACCEL_NV_20 44 /* nVidia Arch 20 */
120 #define FB_ACCEL_NV_30 45 /* nVidia Arch 30 */
121 #define FB_ACCEL_NV_40 46 /* nVidia Arch 40 */
122 #define FB_ACCEL_XGI_VOLARI_V 47 /* XGI Volari V3XT, V5, V8 */
123 #define FB_ACCEL_XGI_VOLARI_Z 48 /* XGI Volari Z7 */
124 #define FB_ACCEL_OMAP1610 49 /* TI OMAP16xx */
125 #define FB_ACCEL_TRIDENT_TGUI 50 /* Trident TGUI */
126 #define FB_ACCEL_TRIDENT_3DIMAGE 51 /* Trident 3DImage */
127 #define FB_ACCEL_TRIDENT_BLADE3D 52 /* Trident Blade3D */
128 #define FB_ACCEL_TRIDENT_BLADEXP 53 /* Trident BladeXP */
129 #define FB_ACCEL_CIRRUS_ALPINE 53 /* Cirrus Logic 543x/544x/5480 */
130 #define FB_ACCEL_NEOMAGIC_NM2070 90 /* NeoMagic NM2070 */
131 #define FB_ACCEL_NEOMAGIC_NM2090 91 /* NeoMagic NM2090 */
132 #define FB_ACCEL_NEOMAGIC_NM2093 92 /* NeoMagic NM2093 */
133 #define FB_ACCEL_NEOMAGIC_NM2097 93 /* NeoMagic NM2097 */
134 #define FB_ACCEL_NEOMAGIC_NM2160 94 /* NeoMagic NM2160 */
135 #define FB_ACCEL_NEOMAGIC_NM2200 95 /* NeoMagic NM2200 */
136 #define FB_ACCEL_NEOMAGIC_NM2230 96 /* NeoMagic NM2230 */
137 #define FB_ACCEL_NEOMAGIC_NM2360 97 /* NeoMagic NM2360 */
138 #define FB_ACCEL_NEOMAGIC_NM2380 98 /* NeoMagic NM2380 */
139 #define FB_ACCEL_PXA3XX 99 /* PXA3xx */
140
141 #define FB_ACCEL_SAVAGE4 0x80 /* S3 Savage4 */
142 #define FB_ACCEL_SAVAGE3D 0x81 /* S3 Savage3D */
143 #define FB_ACCEL_SAVAGE3D_MV 0x82 /* S3 Savage3D-MV */
144 #define FB_ACCEL_SAVAGE2000 0x83 /* S3 Savage2000 */
145 #define FB_ACCEL_SAVAGE_MX_MV 0x84 /* S3 Savage/MX-MV */
146 #define FB_ACCEL_SAVAGE_MX 0x85 /* S3 Savage/MX */
147 #define FB_ACCEL_SAVAGE_IX_MV 0x86 /* S3 Savage/IX-MV */
148 #define FB_ACCEL_SAVAGE_IX 0x87 /* S3 Savage/IX */
149 #define FB_ACCEL_PROSAVAGE_PM 0x88 /* S3 ProSavage PM133 */
150 #define FB_ACCEL_PROSAVAGE_KM 0x89 /* S3 ProSavage KM133 */
151 #define FB_ACCEL_S3TWISTER_P 0x8a /* S3 Twister */
152 #define FB_ACCEL_S3TWISTER_K 0x8b /* S3 TwisterK */
153 #define FB_ACCEL_SUPERSAVAGE 0x8c /* S3 Supersavage */
154 #define FB_ACCEL_PROSAVAGE_DDR 0x8d /* S3 ProSavage DDR */
155 #define FB_ACCEL_PROSAVAGE_DDRK 0x8e /* S3 ProSavage DDR-K */
156
157 #define FB_ACCEL_PUV3_UNIGFX 0xa0 /* PKUnity-v3 Unigfx */
158
159 #define FB_CAP_FOURCC 1 /* Device supports FOURCC-based formats */
160
161 struct fb_fix_screeninfo {
162 char id[16]; /* identification string eg "TT Builtin" */
163 unsigned long smem_start; /* Start of frame buffer mem */
164 /* (physical address) */
165 __u32 smem_len; /* Length of frame buffer mem */
166 __u32 type; /* see FB_TYPE_* */
167 __u32 type_aux; /* Interleave for interleaved Planes */
168 __u32 visual; /* see FB_VISUAL_* */
169 __u16 xpanstep; /* zero if no hardware panning */
170 __u16 ypanstep; /* zero if no hardware panning */
171 __u16 ywrapstep; /* zero if no hardware ywrap */
172 __u32 line_length; /* length of a line in bytes */
173 unsigned long mmio_start; /* Start of Memory Mapped I/O */
174 /* (physical address) */
175 __u32 mmio_len; /* Length of Memory Mapped I/O */
176 __u32 accel; /* Indicate to driver which */
177 /* specific chip/card we have */
178 __u16 capabilities; /* see FB_CAP_* */
179 __u16 reserved[2]; /* Reserved for future compatibility */
180 };
181
182 /* Interpretation of offset for color fields: All offsets are from the right,
183 * inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
184 * can use the offset as right argument to <<). A pixel afterwards is a bit
185 * stream and is written to video memory as that unmodified.
186 *
187 * For pseudocolor: offset and length should be the same for all color
188 * components. Offset specifies the position of the least significant bit
189 * of the pallette index in a pixel value. Length indicates the number
190 * of available palette entries (i.e. # of entries = 1 << length).
191 */
192 struct fb_bitfield {
193 __u32 offset; /* beginning of bitfield */
194 __u32 length; /* length of bitfield */
195 __u32 msb_right; /* != 0 : Most significant bit is */
196 /* right */
197 };
198
199 #define FB_NONSTD_HAM 1 /* Hold-And-Modify (HAM) */
200 #define FB_NONSTD_REV_PIX_IN_B 2 /* order of pixels in each byte is reversed */
201
202 #define FB_ACTIVATE_NOW 0 /* set values immediately (or vbl)*/
203 #define FB_ACTIVATE_NXTOPEN 1 /* activate on next open */
204 #define FB_ACTIVATE_TEST 2 /* don't set, round up impossible */
205 #define FB_ACTIVATE_MASK 15
206 /* values */
207 #define FB_ACTIVATE_VBL 16 /* activate values on next vbl */
208 #define FB_CHANGE_CMAP_VBL 32 /* change colormap on vbl */
209 #define FB_ACTIVATE_ALL 64 /* change all VCs on this fb */
210 #define FB_ACTIVATE_FORCE 128 /* force apply even when no change*/
211 #define FB_ACTIVATE_INV_MODE 256 /* invalidate videomode */
212
213 #define FB_ACCELF_TEXT 1 /* (OBSOLETE) see fb_info.flags and vc_mode */
214
215 #define FB_SYNC_HOR_HIGH_ACT 1 /* horizontal sync high active */
216 #define FB_SYNC_VERT_HIGH_ACT 2 /* vertical sync high active */
217 #define FB_SYNC_EXT 4 /* external sync */
218 #define FB_SYNC_COMP_HIGH_ACT 8 /* composite sync high active */
219 #define FB_SYNC_BROADCAST 16 /* broadcast video timings */
220 /* vtotal = 144d/288n/576i => PAL */
221 /* vtotal = 121d/242n/484i => NTSC */
222 #define FB_SYNC_ON_GREEN 32 /* sync on green */
223
224 #define FB_VMODE_NONINTERLACED 0 /* non interlaced */
225 #define FB_VMODE_INTERLACED 1 /* interlaced */
226 #define FB_VMODE_DOUBLE 2 /* double scan */
227 #define FB_VMODE_ODD_FLD_FIRST 4 /* interlaced: top line first */
228 #define FB_VMODE_MASK 255
229
230 #define FB_VMODE_YWRAP 256 /* ywrap instead of panning */
231 #define FB_VMODE_SMOOTH_XPAN 512 /* smooth xpan possible (internally used) */
232 #define FB_VMODE_CONUPDATE 512 /* don't update x/yoffset */
233
234 /*
235 * Display rotation support
236 */
237 #define FB_ROTATE_UR 0
238 #define FB_ROTATE_CW 1
239 #define FB_ROTATE_UD 2
240 #define FB_ROTATE_CCW 3
241
242 #define PICOS2KHZ(a) (1000000000UL/(a))
243 #define KHZ2PICOS(a) (1000000000UL/(a))
244
245 struct fb_var_screeninfo {
246 __u32 xres; /* visible resolution */
247 __u32 yres;
248 __u32 xres_virtual; /* virtual resolution */
249 __u32 yres_virtual;
250 __u32 xoffset; /* offset from virtual to visible */
251 __u32 yoffset; /* resolution */
252
253 __u32 bits_per_pixel; /* guess what */
254 __u32 grayscale; /* 0 = color, 1 = grayscale, */
255 /* >1 = FOURCC */
256 struct fb_bitfield red; /* bitfield in fb mem if true color, */
257 struct fb_bitfield green; /* else only length is significant */
258 struct fb_bitfield blue;
259 struct fb_bitfield transp; /* transparency */
260
261 __u32 nonstd; /* != 0 Non standard pixel format */
262
263 __u32 activate; /* see FB_ACTIVATE_* */
264
265 __u32 height; /* height of picture in mm */
266 __u32 width; /* width of picture in mm */
267
268 __u32 accel_flags; /* (OBSOLETE) see fb_info.flags */
269
270 /* Timing: All values in pixclocks, except pixclock (of course) */
271 __u32 pixclock; /* pixel clock in ps (pico seconds) */
272 __u32 left_margin; /* time from sync to picture */
273 __u32 right_margin; /* time from picture to sync */
274 __u32 upper_margin; /* time from sync to picture */
275 __u32 lower_margin;
276 __u32 hsync_len; /* length of horizontal sync */
277 __u32 vsync_len; /* length of vertical sync */
278 __u32 sync; /* see FB_SYNC_* */
279 __u32 vmode; /* see FB_VMODE_* */
280 __u32 rotate; /* angle we rotate counter clockwise */
281 __u32 colorspace; /* colorspace for FOURCC-based modes */
282 __u32 reserved[4]; /* Reserved for future compatibility */
283 };
284
285 struct fb_cmap {
286 __u32 start; /* First entry */
287 __u32 len; /* Number of entries */
288 __u16 *red; /* Red values */
289 __u16 *green;
290 __u16 *blue;
291 __u16 *transp; /* transparency, can be NULL */
292 };
293
294 struct fb_con2fbmap {
295 __u32 console;
296 __u32 framebuffer;
297 };
298
299 /* VESA Blanking Levels */
300 #define VESA_NO_BLANKING 0
301 #define VESA_VSYNC_SUSPEND 1
302 #define VESA_HSYNC_SUSPEND 2
303 #define VESA_POWERDOWN 3
304
305
306 enum {
307 /* screen: unblanked, hsync: on, vsync: on */
308 FB_BLANK_UNBLANK = VESA_NO_BLANKING,
309
310 /* screen: blanked, hsync: on, vsync: on */
311 FB_BLANK_NORMAL = VESA_NO_BLANKING + 1,
312
313 /* screen: blanked, hsync: on, vsync: off */
314 FB_BLANK_VSYNC_SUSPEND = VESA_VSYNC_SUSPEND + 1,
315
316 /* screen: blanked, hsync: off, vsync: on */
317 FB_BLANK_HSYNC_SUSPEND = VESA_HSYNC_SUSPEND + 1,
318
319 /* screen: blanked, hsync: off, vsync: off */
320 FB_BLANK_POWERDOWN = VESA_POWERDOWN + 1
321 };
322
323 #define FB_VBLANK_VBLANKING 0x001 /* currently in a vertical blank */
324 #define FB_VBLANK_HBLANKING 0x002 /* currently in a horizontal blank */
325 #define FB_VBLANK_HAVE_VBLANK 0x004 /* vertical blanks can be detected */
326 #define FB_VBLANK_HAVE_HBLANK 0x008 /* horizontal blanks can be detected */
327 #define FB_VBLANK_HAVE_COUNT 0x010 /* global retrace counter is available */
328 #define FB_VBLANK_HAVE_VCOUNT 0x020 /* the vcount field is valid */
329 #define FB_VBLANK_HAVE_HCOUNT 0x040 /* the hcount field is valid */
330 #define FB_VBLANK_VSYNCING 0x080 /* currently in a vsync */
331 #define FB_VBLANK_HAVE_VSYNC 0x100 /* verical syncs can be detected */
332
333 struct fb_vblank {
334 __u32 flags; /* FB_VBLANK flags */
335 __u32 count; /* counter of retraces since boot */
336 __u32 vcount; /* current scanline position */
337 __u32 hcount; /* current scandot position */
338 __u32 reserved[4]; /* reserved for future compatibility */
339 };
340
341 /* Internal HW accel */
342 #define ROP_COPY 0
343 #define ROP_XOR 1
344
345 struct fb_copyarea {
346 __u32 dx;
347 __u32 dy;
348 __u32 width;
349 __u32 height;
350 __u32 sx;
351 __u32 sy;
352 };
353
354 struct fb_fillrect {
355 __u32 dx; /* screen-relative */
356 __u32 dy;
357 __u32 width;
358 __u32 height;
359 __u32 color;
360 __u32 rop;
361 };
362
363 struct fb_image {
364 __u32 dx; /* Where to place image */
365 __u32 dy;
366 __u32 width; /* Size of image */
367 __u32 height;
368 __u32 fg_color; /* Only used when a mono bitmap */
369 __u32 bg_color;
370 __u8 depth; /* Depth of the image */
371 const char *data; /* Pointer to image data */
372 struct fb_cmap cmap; /* color map info */
373 };
374
375 /*
376 * hardware cursor control
377 */
378
379 #define FB_CUR_SETIMAGE 0x01
380 #define FB_CUR_SETPOS 0x02
381 #define FB_CUR_SETHOT 0x04
382 #define FB_CUR_SETCMAP 0x08
383 #define FB_CUR_SETSHAPE 0x10
384 #define FB_CUR_SETSIZE 0x20
385 #define FB_CUR_SETALL 0xFF
386
387 struct fbcurpos {
388 __u16 x, y;
389 };
390
391 struct fb_cursor {
392 __u16 set; /* what to set */
393 __u16 enable; /* cursor on/off */
394 __u16 rop; /* bitop operation */
395 const char *mask; /* cursor mask bits */
396 struct fbcurpos hot; /* cursor hot spot */
397 struct fb_image image; /* Cursor image */
398 };
399
400 #ifdef CONFIG_FB_BACKLIGHT
401 /* Settings for the generic backlight code */
402 #define FB_BACKLIGHT_LEVELS 128
403 #define FB_BACKLIGHT_MAX 0xFF
404 #endif
405
406 #ifdef __KERNEL__
407
408 #include <linux/fs.h>
409 #include <linux/init.h>
410 #include <linux/device.h>
411 #include <linux/workqueue.h>
412 #include <linux/notifier.h>
413 #include <linux/list.h>
414 #include <linux/backlight.h>
415 #include <linux/slab.h>
416 #include <asm/io.h>
417
418 struct vm_area_struct;
419 struct fb_info;
420 struct device;
421 struct file;
422
423 /* Definitions below are used in the parsed monitor specs */
424 #define FB_DPMS_ACTIVE_OFF 1
425 #define FB_DPMS_SUSPEND 2
426 #define FB_DPMS_STANDBY 4
427
428 #define FB_DISP_DDI 1
429 #define FB_DISP_ANA_700_300 2
430 #define FB_DISP_ANA_714_286 4
431 #define FB_DISP_ANA_1000_400 8
432 #define FB_DISP_ANA_700_000 16
433
434 #define FB_DISP_MONO 32
435 #define FB_DISP_RGB 64
436 #define FB_DISP_MULTI 128
437 #define FB_DISP_UNKNOWN 256
438
439 #define FB_SIGNAL_NONE 0
440 #define FB_SIGNAL_BLANK_BLANK 1
441 #define FB_SIGNAL_SEPARATE 2
442 #define FB_SIGNAL_COMPOSITE 4
443 #define FB_SIGNAL_SYNC_ON_GREEN 8
444 #define FB_SIGNAL_SERRATION_ON 16
445
446 #define FB_MISC_PRIM_COLOR 1
447 #define FB_MISC_1ST_DETAIL 2 /* First Detailed Timing is preferred */
448 struct fb_chroma {
449 __u32 redx; /* in fraction of 1024 */
450 __u32 greenx;
451 __u32 bluex;
452 __u32 whitex;
453 __u32 redy;
454 __u32 greeny;
455 __u32 bluey;
456 __u32 whitey;
457 };
458
459 struct fb_monspecs {
460 struct fb_chroma chroma;
461 struct fb_videomode *modedb; /* mode database */
462 __u8 manufacturer[4]; /* Manufacturer */
463 __u8 monitor[14]; /* Monitor String */
464 __u8 serial_no[14]; /* Serial Number */
465 __u8 ascii[14]; /* ? */
466 __u32 modedb_len; /* mode database length */
467 __u32 model; /* Monitor Model */
468 __u32 serial; /* Serial Number - Integer */
469 __u32 year; /* Year manufactured */
470 __u32 week; /* Week Manufactured */
471 __u32 hfmin; /* hfreq lower limit (Hz) */
472 __u32 hfmax; /* hfreq upper limit (Hz) */
473 __u32 dclkmin; /* pixelclock lower limit (Hz) */
474 __u32 dclkmax; /* pixelclock upper limit (Hz) */
475 __u16 input; /* display type - see FB_DISP_* */
476 __u16 dpms; /* DPMS support - see FB_DPMS_ */
477 __u16 signal; /* Signal Type - see FB_SIGNAL_* */
478 __u16 vfmin; /* vfreq lower limit (Hz) */
479 __u16 vfmax; /* vfreq upper limit (Hz) */
480 __u16 gamma; /* Gamma - in fractions of 100 */
481 __u16 gtf : 1; /* supports GTF */
482 __u16 misc; /* Misc flags - see FB_MISC_* */
483 __u8 version; /* EDID version... */
484 __u8 revision; /* ...and revision */
485 __u8 max_x; /* Maximum horizontal size (cm) */
486 __u8 max_y; /* Maximum vertical size (cm) */
487 };
488
489 struct fb_cmap_user {
490 __u32 start; /* First entry */
491 __u32 len; /* Number of entries */
492 __u16 __user *red; /* Red values */
493 __u16 __user *green;
494 __u16 __user *blue;
495 __u16 __user *transp; /* transparency, can be NULL */
496 };
497
498 struct fb_image_user {
499 __u32 dx; /* Where to place image */
500 __u32 dy;
501 __u32 width; /* Size of image */
502 __u32 height;
503 __u32 fg_color; /* Only used when a mono bitmap */
504 __u32 bg_color;
505 __u8 depth; /* Depth of the image */
506 const char __user *data; /* Pointer to image data */
507 struct fb_cmap_user cmap; /* color map info */
508 };
509
510 struct fb_cursor_user {
511 __u16 set; /* what to set */
512 __u16 enable; /* cursor on/off */
513 __u16 rop; /* bitop operation */
514 const char __user *mask; /* cursor mask bits */
515 struct fbcurpos hot; /* cursor hot spot */
516 struct fb_image_user image; /* Cursor image */
517 };
518
519 /*
520 * Register/unregister for framebuffer events
521 */
522
523 /* The resolution of the passed in fb_info about to change */
524 #define FB_EVENT_MODE_CHANGE 0x01
525 /* The display on this fb_info is beeing suspended, no access to the
526 * framebuffer is allowed any more after that call returns
527 */
528 #define FB_EVENT_SUSPEND 0x02
529 /* The display on this fb_info was resumed, you can restore the display
530 * if you own it
531 */
532 #define FB_EVENT_RESUME 0x03
533 /* An entry from the modelist was removed */
534 #define FB_EVENT_MODE_DELETE 0x04
535 /* A driver registered itself */
536 #define FB_EVENT_FB_REGISTERED 0x05
537 /* A driver unregistered itself */
538 #define FB_EVENT_FB_UNREGISTERED 0x06
539 /* CONSOLE-SPECIFIC: get console to framebuffer mapping */
540 #define FB_EVENT_GET_CONSOLE_MAP 0x07
541 /* CONSOLE-SPECIFIC: set console to framebuffer mapping */
542 #define FB_EVENT_SET_CONSOLE_MAP 0x08
543 /* A hardware display blank change occurred */
544 #define FB_EVENT_BLANK 0x09
545 /* Private modelist is to be replaced */
546 #define FB_EVENT_NEW_MODELIST 0x0A
547 /* The resolution of the passed in fb_info about to change and
548 all vc's should be changed */
549 #define FB_EVENT_MODE_CHANGE_ALL 0x0B
550 /* A software display blank change occurred */
551 #define FB_EVENT_CONBLANK 0x0C
552 /* Get drawing requirements */
553 #define FB_EVENT_GET_REQ 0x0D
554 /* Unbind from the console if possible */
555 #define FB_EVENT_FB_UNBIND 0x0E
556 /* CONSOLE-SPECIFIC: remap all consoles to new fb - for vga switcheroo */
557 #define FB_EVENT_REMAP_ALL_CONSOLE 0x0F
558
559 struct fb_event {
560 struct fb_info *info;
561 void *data;
562 };
563
564 struct fb_blit_caps {
565 u32 x;
566 u32 y;
567 u32 len;
568 u32 flags;
569 };
570
571 extern int fb_register_client(struct notifier_block *nb);
572 extern int fb_unregister_client(struct notifier_block *nb);
573 extern int fb_notifier_call_chain(unsigned long val, void *v);
574 /*
575 * Pixmap structure definition
576 *
577 * The purpose of this structure is to translate data
578 * from the hardware independent format of fbdev to what
579 * format the hardware needs.
580 */
581
582 #define FB_PIXMAP_DEFAULT 1 /* used internally by fbcon */
583 #define FB_PIXMAP_SYSTEM 2 /* memory is in system RAM */
584 #define FB_PIXMAP_IO 4 /* memory is iomapped */
585 #define FB_PIXMAP_SYNC 256 /* set if GPU can DMA */
586
587 struct fb_pixmap {
588 u8 *addr; /* pointer to memory */
589 u32 size; /* size of buffer in bytes */
590 u32 offset; /* current offset to buffer */
591 u32 buf_align; /* byte alignment of each bitmap */
592 u32 scan_align; /* alignment per scanline */
593 u32 access_align; /* alignment per read/write (bits) */
594 u32 flags; /* see FB_PIXMAP_* */
595 u32 blit_x; /* supported bit block dimensions (1-32)*/
596 u32 blit_y; /* Format: blit_x = 1 << (width - 1) */
597 /* blit_y = 1 << (height - 1) */
598 /* if 0, will be set to 0xffffffff (all)*/
599 /* access methods */
600 void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size);
601 void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size);
602 };
603
604 #ifdef CONFIG_FB_DEFERRED_IO
605 struct fb_deferred_io {
606 /* delay between mkwrite and deferred handler */
607 unsigned long delay;
608 struct mutex lock; /* mutex that protects the page list */
609 struct list_head pagelist; /* list of touched pages */
610 /* callback */
611 void (*deferred_io)(struct fb_info *info, struct list_head *pagelist);
612 };
613 #endif
614
615 /*
616 * Frame buffer operations
617 *
618 * LOCKING NOTE: those functions must _ALL_ be called with the console
619 * semaphore held, this is the only suitable locking mechanism we have
620 * in 2.6. Some may be called at interrupt time at this point though.
621 *
622 * The exception to this is the debug related hooks. Putting the fb
623 * into a debug state (e.g. flipping to the kernel console) and restoring
624 * it must be done in a lock-free manner, so low level drivers should
625 * keep track of the initial console (if applicable) and may need to
626 * perform direct, unlocked hardware writes in these hooks.
627 */
628
629 struct fb_ops {
630 /* open/release and usage marking */
631 struct module *owner;
632 int (*fb_open)(struct fb_info *info, int user);
633 int (*fb_release)(struct fb_info *info, int user);
634
635 /* For framebuffers with strange non linear layouts or that do not
636 * work with normal memory mapped access
637 */
638 ssize_t (*fb_read)(struct fb_info *info, char __user *buf,
639 size_t count, loff_t *ppos);
640 ssize_t (*fb_write)(struct fb_info *info, const char __user *buf,
641 size_t count, loff_t *ppos);
642
643 /* checks var and eventually tweaks it to something supported,
644 * DO NOT MODIFY PAR */
645 int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
646
647 /* set the video mode according to info->var */
648 int (*fb_set_par)(struct fb_info *info);
649
650 /* set color register */
651 int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green,
652 unsigned blue, unsigned transp, struct fb_info *info);
653
654 /* set color registers in batch */
655 int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info);
656
657 /* blank display */
658 int (*fb_blank)(int blank, struct fb_info *info);
659
660 /* pan display */
661 int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info);
662
663 /* Draws a rectangle */
664 void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);
665 /* Copy data from area to another */
666 void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);
667 /* Draws a image to the display */
668 void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
669
670 /* Draws cursor */
671 int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
672
673 /* Rotates the display */
674 void (*fb_rotate)(struct fb_info *info, int angle);
675
676 /* wait for blit idle, optional */
677 int (*fb_sync)(struct fb_info *info);
678
679 /* perform fb specific ioctl (optional) */
680 int (*fb_ioctl)(struct fb_info *info, unsigned int cmd,
681 unsigned long arg);
682
683 /* Handle 32bit compat ioctl (optional) */
684 int (*fb_compat_ioctl)(struct fb_info *info, unsigned cmd,
685 unsigned long arg);
686
687 /* perform fb specific mmap */
688 int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma);
689
690 /* get capability given var */
691 void (*fb_get_caps)(struct fb_info *info, struct fb_blit_caps *caps,
692 struct fb_var_screeninfo *var);
693
694 /* teardown any resources to do with this framebuffer */
695 void (*fb_destroy)(struct fb_info *info);
696
697 /* called at KDB enter and leave time to prepare the console */
698 int (*fb_debug_enter)(struct fb_info *info);
699 int (*fb_debug_leave)(struct fb_info *info);
700 };
701
702 #ifdef CONFIG_FB_TILEBLITTING
703 #define FB_TILE_CURSOR_NONE 0
704 #define FB_TILE_CURSOR_UNDERLINE 1
705 #define FB_TILE_CURSOR_LOWER_THIRD 2
706 #define FB_TILE_CURSOR_LOWER_HALF 3
707 #define FB_TILE_CURSOR_TWO_THIRDS 4
708 #define FB_TILE_CURSOR_BLOCK 5
709
710 struct fb_tilemap {
711 __u32 width; /* width of each tile in pixels */
712 __u32 height; /* height of each tile in scanlines */
713 __u32 depth; /* color depth of each tile */
714 __u32 length; /* number of tiles in the map */
715 const __u8 *data; /* actual tile map: a bitmap array, packed
716 to the nearest byte */
717 };
718
719 struct fb_tilerect {
720 __u32 sx; /* origin in the x-axis */
721 __u32 sy; /* origin in the y-axis */
722 __u32 width; /* number of tiles in the x-axis */
723 __u32 height; /* number of tiles in the y-axis */
724 __u32 index; /* what tile to use: index to tile map */
725 __u32 fg; /* foreground color */
726 __u32 bg; /* background color */
727 __u32 rop; /* raster operation */
728 };
729
730 struct fb_tilearea {
731 __u32 sx; /* source origin in the x-axis */
732 __u32 sy; /* source origin in the y-axis */
733 __u32 dx; /* destination origin in the x-axis */
734 __u32 dy; /* destination origin in the y-axis */
735 __u32 width; /* number of tiles in the x-axis */
736 __u32 height; /* number of tiles in the y-axis */
737 };
738
739 struct fb_tileblit {
740 __u32 sx; /* origin in the x-axis */
741 __u32 sy; /* origin in the y-axis */
742 __u32 width; /* number of tiles in the x-axis */
743 __u32 height; /* number of tiles in the y-axis */
744 __u32 fg; /* foreground color */
745 __u32 bg; /* background color */
746 __u32 length; /* number of tiles to draw */
747 __u32 *indices; /* array of indices to tile map */
748 };
749
750 struct fb_tilecursor {
751 __u32 sx; /* cursor position in the x-axis */
752 __u32 sy; /* cursor position in the y-axis */
753 __u32 mode; /* 0 = erase, 1 = draw */
754 __u32 shape; /* see FB_TILE_CURSOR_* */
755 __u32 fg; /* foreground color */
756 __u32 bg; /* background color */
757 };
758
759 struct fb_tile_ops {
760 /* set tile characteristics */
761 void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map);
762
763 /* all dimensions from hereon are in terms of tiles */
764
765 /* move a rectangular region of tiles from one area to another*/
766 void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area);
767 /* fill a rectangular region with a tile */
768 void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect);
769 /* copy an array of tiles */
770 void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit);
771 /* cursor */
772 void (*fb_tilecursor)(struct fb_info *info,
773 struct fb_tilecursor *cursor);
774 /* get maximum length of the tile map */
775 int (*fb_get_tilemax)(struct fb_info *info);
776 };
777 #endif /* CONFIG_FB_TILEBLITTING */
778
779 /* FBINFO_* = fb_info.flags bit flags */
780 #define FBINFO_MODULE 0x0001 /* Low-level driver is a module */
781 #define FBINFO_HWACCEL_DISABLED 0x0002
782 /* When FBINFO_HWACCEL_DISABLED is set:
783 * Hardware acceleration is turned off. Software implementations
784 * of required functions (copyarea(), fillrect(), and imageblit())
785 * takes over; acceleration engine should be in a quiescent state */
786
787 /* hints */
788 #define FBINFO_VIRTFB 0x0004 /* FB is System RAM, not device. */
789 #define FBINFO_PARTIAL_PAN_OK 0x0040 /* otw use pan only for double-buffering */
790 #define FBINFO_READS_FAST 0x0080 /* soft-copy faster than rendering */
791
792 /* hardware supported ops */
793 /* semantics: when a bit is set, it indicates that the operation is
794 * accelerated by hardware.
795 * required functions will still work even if the bit is not set.
796 * optional functions may not even exist if the flag bit is not set.
797 */
798 #define FBINFO_HWACCEL_NONE 0x0000
799 #define FBINFO_HWACCEL_COPYAREA 0x0100 /* required */
800 #define FBINFO_HWACCEL_FILLRECT 0x0200 /* required */
801 #define FBINFO_HWACCEL_IMAGEBLIT 0x0400 /* required */
802 #define FBINFO_HWACCEL_ROTATE 0x0800 /* optional */
803 #define FBINFO_HWACCEL_XPAN 0x1000 /* optional */
804 #define FBINFO_HWACCEL_YPAN 0x2000 /* optional */
805 #define FBINFO_HWACCEL_YWRAP 0x4000 /* optional */
806
807 #define FBINFO_MISC_USEREVENT 0x10000 /* event request
808 from userspace */
809 #define FBINFO_MISC_TILEBLITTING 0x20000 /* use tile blitting */
810
811 /* A driver may set this flag to indicate that it does want a set_par to be
812 * called every time when fbcon_switch is executed. The advantage is that with
813 * this flag set you can really be sure that set_par is always called before
814 * any of the functions dependent on the correct hardware state or altering
815 * that state, even if you are using some broken X releases. The disadvantage
816 * is that it introduces unwanted delays to every console switch if set_par
817 * is slow. It is a good idea to try this flag in the drivers initialization
818 * code whenever there is a bug report related to switching between X and the
819 * framebuffer console.
820 */
821 #define FBINFO_MISC_ALWAYS_SETPAR 0x40000
822
823 /* where the fb is a firmware driver, and can be replaced with a proper one */
824 #define FBINFO_MISC_FIRMWARE 0x80000
825 /*
826 * Host and GPU endianness differ.
827 */
828 #define FBINFO_FOREIGN_ENDIAN 0x100000
829 /*
830 * Big endian math. This is the same flags as above, but with different
831 * meaning, it is set by the fb subsystem depending FOREIGN_ENDIAN flag
832 * and host endianness. Drivers should not use this flag.
833 */
834 #define FBINFO_BE_MATH 0x100000
835
836 /* report to the VT layer that this fb driver can accept forced console
837 output like oopses */
838 #define FBINFO_CAN_FORCE_OUTPUT 0x200000
839
840 struct fb_info {
841 atomic_t count;
842 int node;
843 int flags;
844 struct mutex lock; /* Lock for open/release/ioctl funcs */
845 struct mutex mm_lock; /* Lock for fb_mmap and smem_* fields */
846 struct fb_var_screeninfo var; /* Current var */
847 struct fb_fix_screeninfo fix; /* Current fix */
848 struct fb_monspecs monspecs; /* Current Monitor specs */
849 struct work_struct queue; /* Framebuffer event queue */
850 struct fb_pixmap pixmap; /* Image hardware mapper */
851 struct fb_pixmap sprite; /* Cursor hardware mapper */
852 struct fb_cmap cmap; /* Current cmap */
853 struct list_head modelist; /* mode list */
854 struct fb_videomode *mode; /* current mode */
855
856 #ifdef CONFIG_FB_BACKLIGHT
857 /* assigned backlight device */
858 /* set before framebuffer registration,
859 remove after unregister */
860 struct backlight_device *bl_dev;
861
862 /* Backlight level curve */
863 struct mutex bl_curve_mutex;
864 u8 bl_curve[FB_BACKLIGHT_LEVELS];
865 #endif
866 #ifdef CONFIG_FB_DEFERRED_IO
867 struct delayed_work deferred_work;
868 struct fb_deferred_io *fbdefio;
869 #endif
870
871 struct fb_ops *fbops;
872 struct device *device; /* This is the parent */
873 struct device *dev; /* This is this fb device */
874 int class_flag; /* private sysfs flags */
875 #ifdef CONFIG_FB_TILEBLITTING
876 struct fb_tile_ops *tileops; /* Tile Blitting */
877 #endif
878 char __iomem *screen_base; /* Virtual address */
879 unsigned long screen_size; /* Amount of ioremapped VRAM or 0 */
880 void *pseudo_palette; /* Fake palette of 16 colors */
881 #define FBINFO_STATE_RUNNING 0
882 #define FBINFO_STATE_SUSPENDED 1
883 u32 state; /* Hardware state i.e suspend */
884 void *fbcon_par; /* fbcon use-only private area */
885 /* From here on everything is device dependent */
886 void *par;
887 /* we need the PCI or similar aperture base/size not
888 smem_start/size as smem_start may just be an object
889 allocated inside the aperture so may not actually overlap */
890 struct apertures_struct {
891 unsigned int count;
892 struct aperture {
893 resource_size_t base;
894 resource_size_t size;
895 } ranges[0];
896 } *apertures;
897 };
898
899 static inline struct apertures_struct *alloc_apertures(unsigned int max_num) {
900 struct apertures_struct *a = kzalloc(sizeof(struct apertures_struct)
901 + max_num * sizeof(struct aperture), GFP_KERNEL);
902 if (!a)
903 return NULL;
904 a->count = max_num;
905 return a;
906 }
907
908 #ifdef MODULE
909 #define FBINFO_DEFAULT FBINFO_MODULE
910 #else
911 #define FBINFO_DEFAULT 0
912 #endif
913
914 // This will go away
915 #define FBINFO_FLAG_MODULE FBINFO_MODULE
916 #define FBINFO_FLAG_DEFAULT FBINFO_DEFAULT
917
918 /* This will go away
919 * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags
920 * when it wants to turn the acceleration engine on. This is
921 * really a separate operation, and should be modified via sysfs.
922 * But for now, we leave it broken with the following define
923 */
924 #define STUPID_ACCELF_TEXT_SHIT
925
926 // This will go away
927 #if defined(__sparc__)
928
929 /* We map all of our framebuffers such that big-endian accesses
930 * are what we want, so the following is sufficient.
931 */
932
933 // This will go away
934 #define fb_readb sbus_readb
935 #define fb_readw sbus_readw
936 #define fb_readl sbus_readl
937 #define fb_readq sbus_readq
938 #define fb_writeb sbus_writeb
939 #define fb_writew sbus_writew
940 #define fb_writel sbus_writel
941 #define fb_writeq sbus_writeq
942 #define fb_memset sbus_memset_io
943 #define fb_memcpy_fromfb sbus_memcpy_fromio
944 #define fb_memcpy_tofb sbus_memcpy_toio
945
946 #elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || defined(__sh__) || defined(__powerpc__) || defined(__avr32__) || defined(__bfin__)
947
948 #define fb_readb __raw_readb
949 #define fb_readw __raw_readw
950 #define fb_readl __raw_readl
951 #define fb_readq __raw_readq
952 #define fb_writeb __raw_writeb
953 #define fb_writew __raw_writew
954 #define fb_writel __raw_writel
955 #define fb_writeq __raw_writeq
956 #define fb_memset memset_io
957 #define fb_memcpy_fromfb memcpy_fromio
958 #define fb_memcpy_tofb memcpy_toio
959
960 #else
961
962 #define fb_readb(addr) (*(volatile u8 *) (addr))
963 #define fb_readw(addr) (*(volatile u16 *) (addr))
964 #define fb_readl(addr) (*(volatile u32 *) (addr))
965 #define fb_readq(addr) (*(volatile u64 *) (addr))
966 #define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
967 #define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
968 #define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
969 #define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b))
970 #define fb_memset memset
971 #define fb_memcpy_fromfb memcpy
972 #define fb_memcpy_tofb memcpy
973
974 #endif
975
976 #define FB_LEFT_POS(p, bpp) (fb_be_math(p) ? (32 - (bpp)) : 0)
977 #define FB_SHIFT_HIGH(p, val, bits) (fb_be_math(p) ? (val) >> (bits) : \
978 (val) << (bits))
979 #define FB_SHIFT_LOW(p, val, bits) (fb_be_math(p) ? (val) << (bits) : \
980 (val) >> (bits))
981
982 /*
983 * `Generic' versions of the frame buffer device operations
984 */
985
986 extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var);
987 extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var);
988 extern int fb_blank(struct fb_info *info, int blank);
989 extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
990 extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
991 extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image);
992 /*
993 * Drawing operations where framebuffer is in system RAM
994 */
995 extern void sys_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
996 extern void sys_copyarea(struct fb_info *info, const struct fb_copyarea *area);
997 extern void sys_imageblit(struct fb_info *info, const struct fb_image *image);
998 extern ssize_t fb_sys_read(struct fb_info *info, char __user *buf,
999 size_t count, loff_t *ppos);
1000 extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
1001 size_t count, loff_t *ppos);
1002
1003 /* drivers/video/fbmem.c */
1004 extern int register_framebuffer(struct fb_info *fb_info);
1005 extern int unregister_framebuffer(struct fb_info *fb_info);
1006 extern void remove_conflicting_framebuffers(struct apertures_struct *a,
1007 const char *name, bool primary);
1008 extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
1009 extern int fb_show_logo(struct fb_info *fb_info, int rotate);
1010 extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);
1011 extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx,
1012 u32 height, u32 shift_high, u32 shift_low, u32 mod);
1013 extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height);
1014 extern void fb_set_suspend(struct fb_info *info, int state);
1015 extern int fb_get_color_depth(struct fb_var_screeninfo *var,
1016 struct fb_fix_screeninfo *fix);
1017 extern int fb_get_options(char *name, char **option);
1018 extern int fb_new_modelist(struct fb_info *info);
1019
1020 extern struct fb_info *registered_fb[FB_MAX];
1021 extern int num_registered_fb;
1022 extern struct class *fb_class;
1023
1024 extern int lock_fb_info(struct fb_info *info);
1025
1026 static inline void unlock_fb_info(struct fb_info *info)
1027 {
1028 mutex_unlock(&info->lock);
1029 }
1030
1031 static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch,
1032 u8 *src, u32 s_pitch, u32 height)
1033 {
1034 int i, j;
1035
1036 d_pitch -= s_pitch;
1037
1038 for (i = height; i--; ) {
1039 /* s_pitch is a few bytes at the most, memcpy is suboptimal */
1040 for (j = 0; j < s_pitch; j++)
1041 *dst++ = *src++;
1042 dst += d_pitch;
1043 }
1044 }
1045
1046 /* drivers/video/fb_defio.c */
1047 extern void fb_deferred_io_init(struct fb_info *info);
1048 extern void fb_deferred_io_open(struct fb_info *info,
1049 struct inode *inode,
1050 struct file *file);
1051 extern void fb_deferred_io_cleanup(struct fb_info *info);
1052 extern int fb_deferred_io_fsync(struct file *file, loff_t start,
1053 loff_t end, int datasync);
1054
1055 static inline bool fb_be_math(struct fb_info *info)
1056 {
1057 #ifdef CONFIG_FB_FOREIGN_ENDIAN
1058 #if defined(CONFIG_FB_BOTH_ENDIAN)
1059 return info->flags & FBINFO_BE_MATH;
1060 #elif defined(CONFIG_FB_BIG_ENDIAN)
1061 return true;
1062 #elif defined(CONFIG_FB_LITTLE_ENDIAN)
1063 return false;
1064 #endif /* CONFIG_FB_BOTH_ENDIAN */
1065 #else
1066 #ifdef __BIG_ENDIAN
1067 return true;
1068 #else
1069 return false;
1070 #endif /* __BIG_ENDIAN */
1071 #endif /* CONFIG_FB_FOREIGN_ENDIAN */
1072 }
1073
1074 /* drivers/video/fbsysfs.c */
1075 extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);
1076 extern void framebuffer_release(struct fb_info *info);
1077 extern int fb_init_device(struct fb_info *fb_info);
1078 extern void fb_cleanup_device(struct fb_info *head);
1079 extern void fb_bl_default_curve(struct fb_info *fb_info, u8 off, u8 min, u8 max);
1080
1081 /* drivers/video/fbmon.c */
1082 #define FB_MAXTIMINGS 0
1083 #define FB_VSYNCTIMINGS 1
1084 #define FB_HSYNCTIMINGS 2
1085 #define FB_DCLKTIMINGS 3
1086 #define FB_IGNOREMON 0x100
1087
1088 #define FB_MODE_IS_UNKNOWN 0
1089 #define FB_MODE_IS_DETAILED 1
1090 #define FB_MODE_IS_STANDARD 2
1091 #define FB_MODE_IS_VESA 4
1092 #define FB_MODE_IS_CALCULATED 8
1093 #define FB_MODE_IS_FIRST 16
1094 #define FB_MODE_IS_FROM_VAR 32
1095
1096 extern int fbmon_dpms(const struct fb_info *fb_info);
1097 extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var,
1098 struct fb_info *info);
1099 extern int fb_validate_mode(const struct fb_var_screeninfo *var,
1100 struct fb_info *info);
1101 extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);
1102 extern const unsigned char *fb_firmware_edid(struct device *device);
1103 extern void fb_edid_to_monspecs(unsigned char *edid,
1104 struct fb_monspecs *specs);
1105 extern void fb_edid_add_monspecs(unsigned char *edid,
1106 struct fb_monspecs *specs);
1107 extern void fb_destroy_modedb(struct fb_videomode *modedb);
1108 extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb);
1109 extern unsigned char *fb_ddc_read(struct i2c_adapter *adapter);
1110
1111 /* drivers/video/modedb.c */
1112 #define VESA_MODEDB_SIZE 34
1113 extern void fb_var_to_videomode(struct fb_videomode *mode,
1114 const struct fb_var_screeninfo *var);
1115 extern void fb_videomode_to_var(struct fb_var_screeninfo *var,
1116 const struct fb_videomode *mode);
1117 extern int fb_mode_is_equal(const struct fb_videomode *mode1,
1118 const struct fb_videomode *mode2);
1119 extern int fb_add_videomode(const struct fb_videomode *mode,
1120 struct list_head *head);
1121 extern void fb_delete_videomode(const struct fb_videomode *mode,
1122 struct list_head *head);
1123 extern const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var,
1124 struct list_head *head);
1125 extern const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var,
1126 struct list_head *head);
1127 extern const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode,
1128 struct list_head *head);
1129 extern void fb_destroy_modelist(struct list_head *head);
1130 extern void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num,
1131 struct list_head *head);
1132 extern const struct fb_videomode *fb_find_best_display(const struct fb_monspecs *specs,
1133 struct list_head *head);
1134
1135 /* drivers/video/fbcmap.c */
1136 extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);
1137 extern int fb_alloc_cmap_gfp(struct fb_cmap *cmap, int len, int transp, gfp_t flags);
1138 extern void fb_dealloc_cmap(struct fb_cmap *cmap);
1139 extern int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to);
1140 extern int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to);
1141 extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info);
1142 extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info);
1143 extern const struct fb_cmap *fb_default_cmap(int len);
1144 extern void fb_invert_cmaps(void);
1145
1146 struct fb_videomode {
1147 const char *name; /* optional */
1148 u32 refresh; /* optional */
1149 u32 xres;
1150 u32 yres;
1151 u32 pixclock;
1152 u32 left_margin;
1153 u32 right_margin;
1154 u32 upper_margin;
1155 u32 lower_margin;
1156 u32 hsync_len;
1157 u32 vsync_len;
1158 u32 sync;
1159 u32 vmode;
1160 u32 flag;
1161 };
1162
1163 extern const char *fb_mode_option;
1164 extern const struct fb_videomode vesa_modes[];
1165 extern const struct fb_videomode cea_modes[64];
1166
1167 struct fb_modelist {
1168 struct list_head list;
1169 struct fb_videomode mode;
1170 };
1171
1172 extern int fb_find_mode(struct fb_var_screeninfo *var,
1173 struct fb_info *info, const char *mode_option,
1174 const struct fb_videomode *db,
1175 unsigned int dbsize,
1176 const struct fb_videomode *default_mode,
1177 unsigned int default_bpp);
1178
1179 #endif /* __KERNEL__ */
1180
1181 #endif /* _LINUX_FB_H */