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 #define FB_FLAG_RATIO_4_3 64
235 #define FB_FLAG_RATIO_16_9 128
236 #define FB_FLAG_PIXEL_REPEAT 256
237 #define FB_FLAG_PREFERRED 512
238 #define FB_FLAG_HW_CAPABLE 1024
239
240 /*
241 * Display rotation support
242 */
243 #define FB_ROTATE_UR 0
244 #define FB_ROTATE_CW 1
245 #define FB_ROTATE_UD 2
246 #define FB_ROTATE_CCW 3
247
248 #define PICOS2KHZ(a) (1000000000UL/(a))
249 #define KHZ2PICOS(a) (1000000000UL/(a))
250
251 struct fb_var_screeninfo {
252 __u32 xres; /* visible resolution */
253 __u32 yres;
254 __u32 xres_virtual; /* virtual resolution */
255 __u32 yres_virtual;
256 __u32 xoffset; /* offset from virtual to visible */
257 __u32 yoffset; /* resolution */
258
259 __u32 bits_per_pixel; /* guess what */
260 __u32 grayscale; /* 0 = color, 1 = grayscale, */
261 /* >1 = FOURCC */
262 struct fb_bitfield red; /* bitfield in fb mem if true color, */
263 struct fb_bitfield green; /* else only length is significant */
264 struct fb_bitfield blue;
265 struct fb_bitfield transp; /* transparency */
266
267 __u32 nonstd; /* != 0 Non standard pixel format */
268
269 __u32 activate; /* see FB_ACTIVATE_* */
270
271 __u32 height; /* height of picture in mm */
272 __u32 width; /* width of picture in mm */
273
274 __u32 accel_flags; /* (OBSOLETE) see fb_info.flags */
275
276 /* Timing: All values in pixclocks, except pixclock (of course) */
277 __u32 pixclock; /* pixel clock in ps (pico seconds) */
278 __u32 left_margin; /* time from sync to picture */
279 __u32 right_margin; /* time from picture to sync */
280 __u32 upper_margin; /* time from sync to picture */
281 __u32 lower_margin;
282 __u32 hsync_len; /* length of horizontal sync */
283 __u32 vsync_len; /* length of vertical sync */
284 __u32 sync; /* see FB_SYNC_* */
285 __u32 vmode; /* see FB_VMODE_* */
286 __u32 rotate; /* angle we rotate counter clockwise */
287 __u32 colorspace; /* colorspace for FOURCC-based modes */
288 __u32 reserved[4]; /* Reserved for future compatibility */
289 };
290
291 struct fb_cmap {
292 __u32 start; /* First entry */
293 __u32 len; /* Number of entries */
294 __u16 *red; /* Red values */
295 __u16 *green;
296 __u16 *blue;
297 __u16 *transp; /* transparency, can be NULL */
298 };
299
300 struct fb_con2fbmap {
301 __u32 console;
302 __u32 framebuffer;
303 };
304
305 /* VESA Blanking Levels */
306 #define VESA_NO_BLANKING 0
307 #define VESA_VSYNC_SUSPEND 1
308 #define VESA_HSYNC_SUSPEND 2
309 #define VESA_POWERDOWN 3
310
311
312 enum {
313 /* screen: unblanked, hsync: on, vsync: on */
314 FB_BLANK_UNBLANK = VESA_NO_BLANKING,
315
316 /* screen: blanked, hsync: on, vsync: on */
317 FB_BLANK_NORMAL = VESA_NO_BLANKING + 1,
318
319 /* screen: blanked, hsync: on, vsync: off */
320 FB_BLANK_VSYNC_SUSPEND = VESA_VSYNC_SUSPEND + 1,
321
322 /* screen: blanked, hsync: off, vsync: on */
323 FB_BLANK_HSYNC_SUSPEND = VESA_HSYNC_SUSPEND + 1,
324
325 /* screen: blanked, hsync: off, vsync: off */
326 FB_BLANK_POWERDOWN = VESA_POWERDOWN + 1
327 };
328
329 #define FB_VBLANK_VBLANKING 0x001 /* currently in a vertical blank */
330 #define FB_VBLANK_HBLANKING 0x002 /* currently in a horizontal blank */
331 #define FB_VBLANK_HAVE_VBLANK 0x004 /* vertical blanks can be detected */
332 #define FB_VBLANK_HAVE_HBLANK 0x008 /* horizontal blanks can be detected */
333 #define FB_VBLANK_HAVE_COUNT 0x010 /* global retrace counter is available */
334 #define FB_VBLANK_HAVE_VCOUNT 0x020 /* the vcount field is valid */
335 #define FB_VBLANK_HAVE_HCOUNT 0x040 /* the hcount field is valid */
336 #define FB_VBLANK_VSYNCING 0x080 /* currently in a vsync */
337 #define FB_VBLANK_HAVE_VSYNC 0x100 /* verical syncs can be detected */
338
339 struct fb_vblank {
340 __u32 flags; /* FB_VBLANK flags */
341 __u32 count; /* counter of retraces since boot */
342 __u32 vcount; /* current scanline position */
343 __u32 hcount; /* current scandot position */
344 __u32 reserved[4]; /* reserved for future compatibility */
345 };
346
347 /* Internal HW accel */
348 #define ROP_COPY 0
349 #define ROP_XOR 1
350
351 struct fb_copyarea {
352 __u32 dx;
353 __u32 dy;
354 __u32 width;
355 __u32 height;
356 __u32 sx;
357 __u32 sy;
358 };
359
360 struct fb_fillrect {
361 __u32 dx; /* screen-relative */
362 __u32 dy;
363 __u32 width;
364 __u32 height;
365 __u32 color;
366 __u32 rop;
367 };
368
369 struct fb_image {
370 __u32 dx; /* Where to place image */
371 __u32 dy;
372 __u32 width; /* Size of image */
373 __u32 height;
374 __u32 fg_color; /* Only used when a mono bitmap */
375 __u32 bg_color;
376 __u8 depth; /* Depth of the image */
377 const char *data; /* Pointer to image data */
378 struct fb_cmap cmap; /* color map info */
379 };
380
381 /*
382 * hardware cursor control
383 */
384
385 #define FB_CUR_SETIMAGE 0x01
386 #define FB_CUR_SETPOS 0x02
387 #define FB_CUR_SETHOT 0x04
388 #define FB_CUR_SETCMAP 0x08
389 #define FB_CUR_SETSHAPE 0x10
390 #define FB_CUR_SETSIZE 0x20
391 #define FB_CUR_SETALL 0xFF
392
393 struct fbcurpos {
394 __u16 x, y;
395 };
396
397 struct fb_cursor {
398 __u16 set; /* what to set */
399 __u16 enable; /* cursor on/off */
400 __u16 rop; /* bitop operation */
401 const char *mask; /* cursor mask bits */
402 struct fbcurpos hot; /* cursor hot spot */
403 struct fb_image image; /* Cursor image */
404 };
405
406 #ifdef CONFIG_FB_BACKLIGHT
407 /* Settings for the generic backlight code */
408 #define FB_BACKLIGHT_LEVELS 128
409 #define FB_BACKLIGHT_MAX 0xFF
410 #endif
411
412 #ifdef __KERNEL__
413
414 #include <linux/fs.h>
415 #include <linux/init.h>
416 #include <linux/workqueue.h>
417 #include <linux/notifier.h>
418 #include <linux/list.h>
419 #include <linux/backlight.h>
420 #include <linux/slab.h>
421 #include <asm/io.h>
422
423 struct vm_area_struct;
424 struct fb_info;
425 struct device;
426 struct file;
427
428 /* Definitions below are used in the parsed monitor specs */
429 #define FB_DPMS_ACTIVE_OFF 1
430 #define FB_DPMS_SUSPEND 2
431 #define FB_DPMS_STANDBY 4
432
433 #define FB_DISP_DDI 1
434 #define FB_DISP_ANA_700_300 2
435 #define FB_DISP_ANA_714_286 4
436 #define FB_DISP_ANA_1000_400 8
437 #define FB_DISP_ANA_700_000 16
438
439 #define FB_DISP_MONO 32
440 #define FB_DISP_RGB 64
441 #define FB_DISP_MULTI 128
442 #define FB_DISP_UNKNOWN 256
443
444 #define FB_SIGNAL_NONE 0
445 #define FB_SIGNAL_BLANK_BLANK 1
446 #define FB_SIGNAL_SEPARATE 2
447 #define FB_SIGNAL_COMPOSITE 4
448 #define FB_SIGNAL_SYNC_ON_GREEN 8
449 #define FB_SIGNAL_SERRATION_ON 16
450
451 #define FB_MISC_PRIM_COLOR 1
452 #define FB_MISC_1ST_DETAIL 2 /* First Detailed Timing is preferred */
453 struct fb_chroma {
454 __u32 redx; /* in fraction of 1024 */
455 __u32 greenx;
456 __u32 bluex;
457 __u32 whitex;
458 __u32 redy;
459 __u32 greeny;
460 __u32 bluey;
461 __u32 whitey;
462 };
463
464 struct fb_monspecs {
465 struct fb_chroma chroma;
466 struct fb_videomode *modedb; /* mode database */
467 __u8 manufacturer[4]; /* Manufacturer */
468 __u8 monitor[14]; /* Monitor String */
469 __u8 serial_no[14]; /* Serial Number */
470 __u8 ascii[14]; /* ? */
471 __u32 modedb_len; /* mode database length */
472 __u32 model; /* Monitor Model */
473 __u32 serial; /* Serial Number - Integer */
474 __u32 year; /* Year manufactured */
475 __u32 week; /* Week Manufactured */
476 __u32 hfmin; /* hfreq lower limit (Hz) */
477 __u32 hfmax; /* hfreq upper limit (Hz) */
478 __u32 dclkmin; /* pixelclock lower limit (Hz) */
479 __u32 dclkmax; /* pixelclock upper limit (Hz) */
480 __u16 input; /* display type - see FB_DISP_* */
481 __u16 dpms; /* DPMS support - see FB_DPMS_ */
482 __u16 signal; /* Signal Type - see FB_SIGNAL_* */
483 __u16 vfmin; /* vfreq lower limit (Hz) */
484 __u16 vfmax; /* vfreq upper limit (Hz) */
485 __u16 gamma; /* Gamma - in fractions of 100 */
486 __u16 gtf : 1; /* supports GTF */
487 __u16 misc; /* Misc flags - see FB_MISC_* */
488 __u8 version; /* EDID version... */
489 __u8 revision; /* ...and revision */
490 __u8 max_x; /* Maximum horizontal size (cm) */
491 __u8 max_y; /* Maximum vertical size (cm) */
492 };
493
494 struct fb_cmap_user {
495 __u32 start; /* First entry */
496 __u32 len; /* Number of entries */
497 __u16 __user *red; /* Red values */
498 __u16 __user *green;
499 __u16 __user *blue;
500 __u16 __user *transp; /* transparency, can be NULL */
501 };
502
503 struct fb_image_user {
504 __u32 dx; /* Where to place image */
505 __u32 dy;
506 __u32 width; /* Size of image */
507 __u32 height;
508 __u32 fg_color; /* Only used when a mono bitmap */
509 __u32 bg_color;
510 __u8 depth; /* Depth of the image */
511 const char __user *data; /* Pointer to image data */
512 struct fb_cmap_user cmap; /* color map info */
513 };
514
515 struct fb_cursor_user {
516 __u16 set; /* what to set */
517 __u16 enable; /* cursor on/off */
518 __u16 rop; /* bitop operation */
519 const char __user *mask; /* cursor mask bits */
520 struct fbcurpos hot; /* cursor hot spot */
521 struct fb_image_user image; /* Cursor image */
522 };
523
524 /*
525 * Register/unregister for framebuffer events
526 */
527
528 /* The resolution of the passed in fb_info about to change */
529 #define FB_EVENT_MODE_CHANGE 0x01
530 /* The display on this fb_info is beeing suspended, no access to the
531 * framebuffer is allowed any more after that call returns
532 */
533 #define FB_EVENT_SUSPEND 0x02
534 /* The display on this fb_info was resumed, you can restore the display
535 * if you own it
536 */
537 #define FB_EVENT_RESUME 0x03
538 /* An entry from the modelist was removed */
539 #define FB_EVENT_MODE_DELETE 0x04
540 /* A driver registered itself */
541 #define FB_EVENT_FB_REGISTERED 0x05
542 /* A driver unregistered itself */
543 #define FB_EVENT_FB_UNREGISTERED 0x06
544 /* CONSOLE-SPECIFIC: get console to framebuffer mapping */
545 #define FB_EVENT_GET_CONSOLE_MAP 0x07
546 /* CONSOLE-SPECIFIC: set console to framebuffer mapping */
547 #define FB_EVENT_SET_CONSOLE_MAP 0x08
548 /* A hardware display blank change occurred */
549 #define FB_EVENT_BLANK 0x09
550 /* Private modelist is to be replaced */
551 #define FB_EVENT_NEW_MODELIST 0x0A
552 /* The resolution of the passed in fb_info about to change and
553 all vc's should be changed */
554 #define FB_EVENT_MODE_CHANGE_ALL 0x0B
555 /* A software display blank change occurred */
556 #define FB_EVENT_CONBLANK 0x0C
557 /* Get drawing requirements */
558 #define FB_EVENT_GET_REQ 0x0D
559 /* Unbind from the console if possible */
560 #define FB_EVENT_FB_UNBIND 0x0E
561 /* CONSOLE-SPECIFIC: remap all consoles to new fb - for vga switcheroo */
562 #define FB_EVENT_REMAP_ALL_CONSOLE 0x0F
563
564 struct fb_event {
565 struct fb_info *info;
566 void *data;
567 };
568
569 struct fb_blit_caps {
570 u32 x;
571 u32 y;
572 u32 len;
573 u32 flags;
574 };
575
576 extern int fb_register_client(struct notifier_block *nb);
577 extern int fb_unregister_client(struct notifier_block *nb);
578 extern int fb_notifier_call_chain(unsigned long val, void *v);
579 /*
580 * Pixmap structure definition
581 *
582 * The purpose of this structure is to translate data
583 * from the hardware independent format of fbdev to what
584 * format the hardware needs.
585 */
586
587 #define FB_PIXMAP_DEFAULT 1 /* used internally by fbcon */
588 #define FB_PIXMAP_SYSTEM 2 /* memory is in system RAM */
589 #define FB_PIXMAP_IO 4 /* memory is iomapped */
590 #define FB_PIXMAP_SYNC 256 /* set if GPU can DMA */
591
592 struct fb_pixmap {
593 u8 *addr; /* pointer to memory */
594 u32 size; /* size of buffer in bytes */
595 u32 offset; /* current offset to buffer */
596 u32 buf_align; /* byte alignment of each bitmap */
597 u32 scan_align; /* alignment per scanline */
598 u32 access_align; /* alignment per read/write (bits) */
599 u32 flags; /* see FB_PIXMAP_* */
600 u32 blit_x; /* supported bit block dimensions (1-32)*/
601 u32 blit_y; /* Format: blit_x = 1 << (width - 1) */
602 /* blit_y = 1 << (height - 1) */
603 /* if 0, will be set to 0xffffffff (all)*/
604 /* access methods */
605 void (*writeio)(struct fb_info *info, void __iomem *dst, void *src, unsigned int size);
606 void (*readio) (struct fb_info *info, void *dst, void __iomem *src, unsigned int size);
607 };
608
609 #ifdef CONFIG_FB_DEFERRED_IO
610 struct fb_deferred_io {
611 /* delay between mkwrite and deferred handler */
612 unsigned long delay;
613 struct mutex lock; /* mutex that protects the page list */
614 struct list_head pagelist; /* list of touched pages */
615 /* callback */
616 void (*deferred_io)(struct fb_info *info, struct list_head *pagelist);
617 };
618 #endif
619
620 /*
621 * Frame buffer operations
622 *
623 * LOCKING NOTE: those functions must _ALL_ be called with the console
624 * semaphore held, this is the only suitable locking mechanism we have
625 * in 2.6. Some may be called at interrupt time at this point though.
626 *
627 * The exception to this is the debug related hooks. Putting the fb
628 * into a debug state (e.g. flipping to the kernel console) and restoring
629 * it must be done in a lock-free manner, so low level drivers should
630 * keep track of the initial console (if applicable) and may need to
631 * perform direct, unlocked hardware writes in these hooks.
632 */
633
634 struct fb_ops {
635 /* open/release and usage marking */
636 struct module *owner;
637 int (*fb_open)(struct fb_info *info, int user);
638 int (*fb_release)(struct fb_info *info, int user);
639
640 /* For framebuffers with strange non linear layouts or that do not
641 * work with normal memory mapped access
642 */
643 ssize_t (*fb_read)(struct fb_info *info, char __user *buf,
644 size_t count, loff_t *ppos);
645 ssize_t (*fb_write)(struct fb_info *info, const char __user *buf,
646 size_t count, loff_t *ppos);
647
648 /* checks var and eventually tweaks it to something supported,
649 * DO NOT MODIFY PAR */
650 int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
651
652 /* set the video mode according to info->var */
653 int (*fb_set_par)(struct fb_info *info);
654
655 /* set color register */
656 int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green,
657 unsigned blue, unsigned transp, struct fb_info *info);
658
659 /* set color registers in batch */
660 int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info);
661
662 /* blank display */
663 int (*fb_blank)(int blank, struct fb_info *info);
664
665 /* pan display */
666 int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info);
667
668 /* Draws a rectangle */
669 void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);
670 /* Copy data from area to another */
671 void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);
672 /* Draws a image to the display */
673 void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
674
675 /* Draws cursor */
676 int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
677
678 /* Rotates the display */
679 void (*fb_rotate)(struct fb_info *info, int angle);
680
681 /* wait for blit idle, optional */
682 int (*fb_sync)(struct fb_info *info);
683
684 /* perform fb specific ioctl (optional) */
685 int (*fb_ioctl)(struct fb_info *info, unsigned int cmd,
686 unsigned long arg);
687
688 /* Handle 32bit compat ioctl (optional) */
689 int (*fb_compat_ioctl)(struct fb_info *info, unsigned cmd,
690 unsigned long arg);
691
692 /* perform fb specific mmap */
693 int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma);
694
695 /* get capability given var */
696 void (*fb_get_caps)(struct fb_info *info, struct fb_blit_caps *caps,
697 struct fb_var_screeninfo *var);
698
699 /* teardown any resources to do with this framebuffer */
700 void (*fb_destroy)(struct fb_info *info);
701
702 /* called at KDB enter and leave time to prepare the console */
703 int (*fb_debug_enter)(struct fb_info *info);
704 int (*fb_debug_leave)(struct fb_info *info);
705 };
706
707 #ifdef CONFIG_FB_TILEBLITTING
708 #define FB_TILE_CURSOR_NONE 0
709 #define FB_TILE_CURSOR_UNDERLINE 1
710 #define FB_TILE_CURSOR_LOWER_THIRD 2
711 #define FB_TILE_CURSOR_LOWER_HALF 3
712 #define FB_TILE_CURSOR_TWO_THIRDS 4
713 #define FB_TILE_CURSOR_BLOCK 5
714
715 struct fb_tilemap {
716 __u32 width; /* width of each tile in pixels */
717 __u32 height; /* height of each tile in scanlines */
718 __u32 depth; /* color depth of each tile */
719 __u32 length; /* number of tiles in the map */
720 const __u8 *data; /* actual tile map: a bitmap array, packed
721 to the nearest byte */
722 };
723
724 struct fb_tilerect {
725 __u32 sx; /* origin in the x-axis */
726 __u32 sy; /* origin in the y-axis */
727 __u32 width; /* number of tiles in the x-axis */
728 __u32 height; /* number of tiles in the y-axis */
729 __u32 index; /* what tile to use: index to tile map */
730 __u32 fg; /* foreground color */
731 __u32 bg; /* background color */
732 __u32 rop; /* raster operation */
733 };
734
735 struct fb_tilearea {
736 __u32 sx; /* source origin in the x-axis */
737 __u32 sy; /* source origin in the y-axis */
738 __u32 dx; /* destination origin in the x-axis */
739 __u32 dy; /* destination origin in the y-axis */
740 __u32 width; /* number of tiles in the x-axis */
741 __u32 height; /* number of tiles in the y-axis */
742 };
743
744 struct fb_tileblit {
745 __u32 sx; /* origin in the x-axis */
746 __u32 sy; /* origin in the y-axis */
747 __u32 width; /* number of tiles in the x-axis */
748 __u32 height; /* number of tiles in the y-axis */
749 __u32 fg; /* foreground color */
750 __u32 bg; /* background color */
751 __u32 length; /* number of tiles to draw */
752 __u32 *indices; /* array of indices to tile map */
753 };
754
755 struct fb_tilecursor {
756 __u32 sx; /* cursor position in the x-axis */
757 __u32 sy; /* cursor position in the y-axis */
758 __u32 mode; /* 0 = erase, 1 = draw */
759 __u32 shape; /* see FB_TILE_CURSOR_* */
760 __u32 fg; /* foreground color */
761 __u32 bg; /* background color */
762 };
763
764 struct fb_tile_ops {
765 /* set tile characteristics */
766 void (*fb_settile)(struct fb_info *info, struct fb_tilemap *map);
767
768 /* all dimensions from hereon are in terms of tiles */
769
770 /* move a rectangular region of tiles from one area to another*/
771 void (*fb_tilecopy)(struct fb_info *info, struct fb_tilearea *area);
772 /* fill a rectangular region with a tile */
773 void (*fb_tilefill)(struct fb_info *info, struct fb_tilerect *rect);
774 /* copy an array of tiles */
775 void (*fb_tileblit)(struct fb_info *info, struct fb_tileblit *blit);
776 /* cursor */
777 void (*fb_tilecursor)(struct fb_info *info,
778 struct fb_tilecursor *cursor);
779 /* get maximum length of the tile map */
780 int (*fb_get_tilemax)(struct fb_info *info);
781 };
782 #endif /* CONFIG_FB_TILEBLITTING */
783
784 /* FBINFO_* = fb_info.flags bit flags */
785 #define FBINFO_MODULE 0x0001 /* Low-level driver is a module */
786 #define FBINFO_HWACCEL_DISABLED 0x0002
787 /* When FBINFO_HWACCEL_DISABLED is set:
788 * Hardware acceleration is turned off. Software implementations
789 * of required functions (copyarea(), fillrect(), and imageblit())
790 * takes over; acceleration engine should be in a quiescent state */
791
792 /* hints */
793 #define FBINFO_VIRTFB 0x0004 /* FB is System RAM, not device. */
794 #define FBINFO_PARTIAL_PAN_OK 0x0040 /* otw use pan only for double-buffering */
795 #define FBINFO_READS_FAST 0x0080 /* soft-copy faster than rendering */
796
797 /* hardware supported ops */
798 /* semantics: when a bit is set, it indicates that the operation is
799 * accelerated by hardware.
800 * required functions will still work even if the bit is not set.
801 * optional functions may not even exist if the flag bit is not set.
802 */
803 #define FBINFO_HWACCEL_NONE 0x0000
804 #define FBINFO_HWACCEL_COPYAREA 0x0100 /* required */
805 #define FBINFO_HWACCEL_FILLRECT 0x0200 /* required */
806 #define FBINFO_HWACCEL_IMAGEBLIT 0x0400 /* required */
807 #define FBINFO_HWACCEL_ROTATE 0x0800 /* optional */
808 #define FBINFO_HWACCEL_XPAN 0x1000 /* optional */
809 #define FBINFO_HWACCEL_YPAN 0x2000 /* optional */
810 #define FBINFO_HWACCEL_YWRAP 0x4000 /* optional */
811
812 #define FBINFO_MISC_USEREVENT 0x10000 /* event request
813 from userspace */
814 #define FBINFO_MISC_TILEBLITTING 0x20000 /* use tile blitting */
815
816 /* A driver may set this flag to indicate that it does want a set_par to be
817 * called every time when fbcon_switch is executed. The advantage is that with
818 * this flag set you can really be sure that set_par is always called before
819 * any of the functions dependent on the correct hardware state or altering
820 * that state, even if you are using some broken X releases. The disadvantage
821 * is that it introduces unwanted delays to every console switch if set_par
822 * is slow. It is a good idea to try this flag in the drivers initialization
823 * code whenever there is a bug report related to switching between X and the
824 * framebuffer console.
825 */
826 #define FBINFO_MISC_ALWAYS_SETPAR 0x40000
827
828 /* where the fb is a firmware driver, and can be replaced with a proper one */
829 #define FBINFO_MISC_FIRMWARE 0x80000
830 /*
831 * Host and GPU endianness differ.
832 */
833 #define FBINFO_FOREIGN_ENDIAN 0x100000
834 /*
835 * Big endian math. This is the same flags as above, but with different
836 * meaning, it is set by the fb subsystem depending FOREIGN_ENDIAN flag
837 * and host endianness. Drivers should not use this flag.
838 */
839 #define FBINFO_BE_MATH 0x100000
840
841 /* report to the VT layer that this fb driver can accept forced console
842 output like oopses */
843 #define FBINFO_CAN_FORCE_OUTPUT 0x200000
844
845 struct fb_info {
846 atomic_t count;
847 int node;
848 int flags;
849 struct mutex lock; /* Lock for open/release/ioctl funcs */
850 struct mutex mm_lock; /* Lock for fb_mmap and smem_* fields */
851 struct fb_var_screeninfo var; /* Current var */
852 struct fb_fix_screeninfo fix; /* Current fix */
853 struct fb_monspecs monspecs; /* Current Monitor specs */
854 struct work_struct queue; /* Framebuffer event queue */
855 struct fb_pixmap pixmap; /* Image hardware mapper */
856 struct fb_pixmap sprite; /* Cursor hardware mapper */
857 struct fb_cmap cmap; /* Current cmap */
858 struct list_head modelist; /* mode list */
859 struct fb_videomode *mode; /* current mode */
860
861 #ifdef CONFIG_FB_BACKLIGHT
862 /* assigned backlight device */
863 /* set before framebuffer registration,
864 remove after unregister */
865 struct backlight_device *bl_dev;
866
867 /* Backlight level curve */
868 struct mutex bl_curve_mutex;
869 u8 bl_curve[FB_BACKLIGHT_LEVELS];
870 #endif
871 #ifdef CONFIG_FB_DEFERRED_IO
872 struct delayed_work deferred_work;
873 struct fb_deferred_io *fbdefio;
874 #endif
875
876 struct fb_ops *fbops;
877 struct device *device; /* This is the parent */
878 struct device *dev; /* This is this fb device */
879 int class_flag; /* private sysfs flags */
880 #ifdef CONFIG_FB_TILEBLITTING
881 struct fb_tile_ops *tileops; /* Tile Blitting */
882 #endif
883 char __iomem *screen_base; /* Virtual address */
884 unsigned long screen_size; /* Amount of ioremapped VRAM or 0 */
885 void *pseudo_palette; /* Fake palette of 16 colors */
886 #define FBINFO_STATE_RUNNING 0
887 #define FBINFO_STATE_SUSPENDED 1
888 u32 state; /* Hardware state i.e suspend */
889 void *fbcon_par; /* fbcon use-only private area */
890 /* From here on everything is device dependent */
891 void *par;
892 /* we need the PCI or similar aperture base/size not
893 smem_start/size as smem_start may just be an object
894 allocated inside the aperture so may not actually overlap */
895 struct apertures_struct {
896 unsigned int count;
897 struct aperture {
898 resource_size_t base;
899 resource_size_t size;
900 } ranges[0];
901 } *apertures;
902 };
903
alloc_apertures(unsigned int max_num)904 static inline struct apertures_struct *alloc_apertures(unsigned int max_num) {
905 struct apertures_struct *a = kzalloc(sizeof(struct apertures_struct)
906 + max_num * sizeof(struct aperture), GFP_KERNEL);
907 if (!a)
908 return NULL;
909 a->count = max_num;
910 return a;
911 }
912
913 #ifdef MODULE
914 #define FBINFO_DEFAULT FBINFO_MODULE
915 #else
916 #define FBINFO_DEFAULT 0
917 #endif
918
919 // This will go away
920 #define FBINFO_FLAG_MODULE FBINFO_MODULE
921 #define FBINFO_FLAG_DEFAULT FBINFO_DEFAULT
922
923 /* This will go away
924 * fbset currently hacks in FB_ACCELF_TEXT into var.accel_flags
925 * when it wants to turn the acceleration engine on. This is
926 * really a separate operation, and should be modified via sysfs.
927 * But for now, we leave it broken with the following define
928 */
929 #define STUPID_ACCELF_TEXT_SHIT
930
931 // This will go away
932 #if defined(__sparc__)
933
934 /* We map all of our framebuffers such that big-endian accesses
935 * are what we want, so the following is sufficient.
936 */
937
938 // This will go away
939 #define fb_readb sbus_readb
940 #define fb_readw sbus_readw
941 #define fb_readl sbus_readl
942 #define fb_readq sbus_readq
943 #define fb_writeb sbus_writeb
944 #define fb_writew sbus_writew
945 #define fb_writel sbus_writel
946 #define fb_writeq sbus_writeq
947 #define fb_memset sbus_memset_io
948 #define fb_memcpy_fromfb sbus_memcpy_fromio
949 #define fb_memcpy_tofb sbus_memcpy_toio
950
951 #elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || defined(__sh__) || defined(__powerpc__) || defined(__avr32__) || defined(__bfin__)
952
953 #define fb_readb __raw_readb
954 #define fb_readw __raw_readw
955 #define fb_readl __raw_readl
956 #define fb_readq __raw_readq
957 #define fb_writeb __raw_writeb
958 #define fb_writew __raw_writew
959 #define fb_writel __raw_writel
960 #define fb_writeq __raw_writeq
961 #define fb_memset memset_io
962 #define fb_memcpy_fromfb memcpy_fromio
963 #define fb_memcpy_tofb memcpy_toio
964
965 #else
966
967 #define fb_readb(addr) (*(volatile u8 *) (addr))
968 #define fb_readw(addr) (*(volatile u16 *) (addr))
969 #define fb_readl(addr) (*(volatile u32 *) (addr))
970 #define fb_readq(addr) (*(volatile u64 *) (addr))
971 #define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
972 #define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
973 #define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
974 #define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b))
975 #define fb_memset memset
976 #define fb_memcpy_fromfb memcpy
977 #define fb_memcpy_tofb memcpy
978
979 #endif
980
981 #define FB_LEFT_POS(p, bpp) (fb_be_math(p) ? (32 - (bpp)) : 0)
982 #define FB_SHIFT_HIGH(p, val, bits) (fb_be_math(p) ? (val) >> (bits) : \
983 (val) << (bits))
984 #define FB_SHIFT_LOW(p, val, bits) (fb_be_math(p) ? (val) << (bits) : \
985 (val) >> (bits))
986
987 /*
988 * `Generic' versions of the frame buffer device operations
989 */
990
991 extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var);
992 extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var);
993 extern int fb_blank(struct fb_info *info, int blank);
994 extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
995 extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
996 extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image);
997 /*
998 * Drawing operations where framebuffer is in system RAM
999 */
1000 extern void sys_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
1001 extern void sys_copyarea(struct fb_info *info, const struct fb_copyarea *area);
1002 extern void sys_imageblit(struct fb_info *info, const struct fb_image *image);
1003 extern ssize_t fb_sys_read(struct fb_info *info, char __user *buf,
1004 size_t count, loff_t *ppos);
1005 extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
1006 size_t count, loff_t *ppos);
1007
1008 /* drivers/video/fbmem.c */
1009 extern int register_framebuffer(struct fb_info *fb_info);
1010 extern int unregister_framebuffer(struct fb_info *fb_info);
1011 extern int unlink_framebuffer(struct fb_info *fb_info);
1012 extern void remove_conflicting_framebuffers(struct apertures_struct *a,
1013 const char *name, bool primary);
1014 extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
1015 extern int fb_show_logo(struct fb_info *fb_info, int rotate);
1016 extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);
1017 extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx,
1018 u32 height, u32 shift_high, u32 shift_low, u32 mod);
1019 extern void fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 s_pitch, u32 height);
1020 extern void fb_set_suspend(struct fb_info *info, int state);
1021 extern int fb_get_color_depth(struct fb_var_screeninfo *var,
1022 struct fb_fix_screeninfo *fix);
1023 extern int fb_get_options(char *name, char **option);
1024 extern int fb_new_modelist(struct fb_info *info);
1025
1026 extern struct fb_info *registered_fb[FB_MAX];
1027 extern int num_registered_fb;
1028 extern struct class *fb_class;
1029
1030 extern int lock_fb_info(struct fb_info *info);
1031
unlock_fb_info(struct fb_info * info)1032 static inline void unlock_fb_info(struct fb_info *info)
1033 {
1034 mutex_unlock(&info->lock);
1035 }
1036
__fb_pad_aligned_buffer(u8 * dst,u32 d_pitch,u8 * src,u32 s_pitch,u32 height)1037 static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch,
1038 u8 *src, u32 s_pitch, u32 height)
1039 {
1040 int i, j;
1041
1042 d_pitch -= s_pitch;
1043
1044 for (i = height; i--; ) {
1045 /* s_pitch is a few bytes at the most, memcpy is suboptimal */
1046 for (j = 0; j < s_pitch; j++)
1047 *dst++ = *src++;
1048 dst += d_pitch;
1049 }
1050 }
1051
1052 /* drivers/video/fb_defio.c */
1053 extern void fb_deferred_io_init(struct fb_info *info);
1054 extern void fb_deferred_io_open(struct fb_info *info,
1055 struct inode *inode,
1056 struct file *file);
1057 extern void fb_deferred_io_cleanup(struct fb_info *info);
1058 extern int fb_deferred_io_fsync(struct file *file, loff_t start,
1059 loff_t end, int datasync);
1060
fb_be_math(struct fb_info * info)1061 static inline bool fb_be_math(struct fb_info *info)
1062 {
1063 #ifdef CONFIG_FB_FOREIGN_ENDIAN
1064 #if defined(CONFIG_FB_BOTH_ENDIAN)
1065 return info->flags & FBINFO_BE_MATH;
1066 #elif defined(CONFIG_FB_BIG_ENDIAN)
1067 return true;
1068 #elif defined(CONFIG_FB_LITTLE_ENDIAN)
1069 return false;
1070 #endif /* CONFIG_FB_BOTH_ENDIAN */
1071 #else
1072 #ifdef __BIG_ENDIAN
1073 return true;
1074 #else
1075 return false;
1076 #endif /* __BIG_ENDIAN */
1077 #endif /* CONFIG_FB_FOREIGN_ENDIAN */
1078 }
1079
1080 /* drivers/video/fbsysfs.c */
1081 extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);
1082 extern void framebuffer_release(struct fb_info *info);
1083 extern int fb_init_device(struct fb_info *fb_info);
1084 extern void fb_cleanup_device(struct fb_info *head);
1085 extern void fb_bl_default_curve(struct fb_info *fb_info, u8 off, u8 min, u8 max);
1086
1087 /* drivers/video/fbmon.c */
1088 #define FB_MAXTIMINGS 0
1089 #define FB_VSYNCTIMINGS 1
1090 #define FB_HSYNCTIMINGS 2
1091 #define FB_DCLKTIMINGS 3
1092 #define FB_IGNOREMON 0x100
1093
1094 #define FB_MODE_IS_UNKNOWN 0
1095 #define FB_MODE_IS_DETAILED 1
1096 #define FB_MODE_IS_STANDARD 2
1097 #define FB_MODE_IS_VESA 4
1098 #define FB_MODE_IS_CALCULATED 8
1099 #define FB_MODE_IS_FIRST 16
1100 #define FB_MODE_IS_FROM_VAR 32
1101
1102 extern int fbmon_dpms(const struct fb_info *fb_info);
1103 extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var,
1104 struct fb_info *info);
1105 extern int fb_validate_mode(const struct fb_var_screeninfo *var,
1106 struct fb_info *info);
1107 extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);
1108 extern const unsigned char *fb_firmware_edid(struct device *device);
1109 extern void fb_edid_to_monspecs(unsigned char *edid,
1110 struct fb_monspecs *specs);
1111 extern void fb_edid_add_monspecs(unsigned char *edid,
1112 struct fb_monspecs *specs);
1113 extern void fb_destroy_modedb(struct fb_videomode *modedb);
1114 extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb);
1115 extern unsigned char *fb_ddc_read(struct i2c_adapter *adapter);
1116
1117 /* drivers/video/modedb.c */
1118 #define VESA_MODEDB_SIZE 34
1119 extern void fb_var_to_videomode(struct fb_videomode *mode,
1120 const struct fb_var_screeninfo *var);
1121 extern void fb_videomode_to_var(struct fb_var_screeninfo *var,
1122 const struct fb_videomode *mode);
1123 extern int fb_mode_is_equal(const struct fb_videomode *mode1,
1124 const struct fb_videomode *mode2);
1125 extern int fb_add_videomode(const struct fb_videomode *mode,
1126 struct list_head *head);
1127 extern void fb_delete_videomode(const struct fb_videomode *mode,
1128 struct list_head *head);
1129 extern const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var,
1130 struct list_head *head);
1131 extern const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var,
1132 struct list_head *head);
1133 extern const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode,
1134 struct list_head *head);
1135 extern void fb_destroy_modelist(struct list_head *head);
1136 extern void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num,
1137 struct list_head *head);
1138 extern const struct fb_videomode *fb_find_best_display(const struct fb_monspecs *specs,
1139 struct list_head *head);
1140
1141 /* drivers/video/fbcmap.c */
1142 extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);
1143 extern int fb_alloc_cmap_gfp(struct fb_cmap *cmap, int len, int transp, gfp_t flags);
1144 extern void fb_dealloc_cmap(struct fb_cmap *cmap);
1145 extern int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to);
1146 extern int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to);
1147 extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info);
1148 extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info);
1149 extern const struct fb_cmap *fb_default_cmap(int len);
1150 extern void fb_invert_cmaps(void);
1151
1152 struct fb_videomode {
1153 const char *name; /* optional */
1154 u32 refresh; /* optional */
1155 u32 xres;
1156 u32 yres;
1157 u32 pixclock;
1158 u32 left_margin;
1159 u32 right_margin;
1160 u32 upper_margin;
1161 u32 lower_margin;
1162 u32 hsync_len;
1163 u32 vsync_len;
1164 u32 sync;
1165 u32 vmode;
1166 u32 flag;
1167 };
1168
1169 extern const char *fb_mode_option;
1170 extern const struct fb_videomode vesa_modes[];
1171 extern const struct fb_videomode cea_modes[64];
1172
1173 struct fb_modelist {
1174 struct list_head list;
1175 struct fb_videomode mode;
1176 };
1177
1178 extern int fb_find_mode(struct fb_var_screeninfo *var,
1179 struct fb_info *info, const char *mode_option,
1180 const struct fb_videomode *db,
1181 unsigned int dbsize,
1182 const struct fb_videomode *default_mode,
1183 unsigned int default_bpp);
1184
1185 #endif /* __KERNEL__ */
1186
1187 #endif /* _LINUX_FB_H */
1188