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git.ipfire.org Git - people/ms/u-boot.git/blob - include/linux/fb.h
4 #include <linux/types.h>
5 #include <linux/list.h>
7 /* Definitions of frame buffers */
9 #define FB_MAX 32 /* sufficient for now */
11 #define FB_TYPE_PACKED_PIXELS 0 /* Packed Pixels */
13 #define FB_VISUAL_MONO01 0 /* Monochr. 1=Black 0=White */
14 #define FB_VISUAL_MONO10 1 /* Monochr. 1=White 0=Black */
15 #define FB_VISUAL_TRUECOLOR 2 /* True color */
16 #define FB_VISUAL_PSEUDOCOLOR 3 /* Pseudo color (like atari) */
17 #define FB_VISUAL_DIRECTCOLOR 4 /* Direct color */
18 #define FB_VISUAL_STATIC_PSEUDOCOLOR 5 /* Pseudo color readonly */
20 #define FB_ACCEL_NONE 0 /* no hardware accelerator */
22 struct fb_fix_screeninfo
{
23 char id
[16]; /* identification string eg "TT Builtin" */
24 unsigned long smem_start
; /* Start of frame buffer mem */
25 /* (physical address) */
26 __u32 smem_len
; /* Length of frame buffer mem */
27 __u32 type
; /* see FB_TYPE_* */
28 __u32 type_aux
; /* Interleave for interleaved Planes */
29 __u32 visual
; /* see FB_VISUAL_* */
30 __u16 xpanstep
; /* zero if no hardware panning */
31 __u16 ypanstep
; /* zero if no hardware panning */
32 __u16 ywrapstep
; /* zero if no hardware ywrap */
33 __u32 line_length
; /* length of a line in bytes */
34 unsigned long mmio_start
; /* Start of Memory Mapped I/O */
35 /* (physical address) */
36 __u32 mmio_len
; /* Length of Memory Mapped I/O */
37 __u32 accel
; /* Indicate to driver which */
38 /* specific chip/card we have */
39 __u16 reserved
[3]; /* Reserved for future compatibility */
43 * Interpretation of offset for color fields: All offsets are from the right,
44 * inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
45 * can use the offset as right argument to <<). A pixel afterwards is a bit
46 * stream and is written to video memory as that unmodified.
48 * For pseudocolor: offset and length should be the same for all color
49 * components. Offset specifies the position of the least significant bit
50 * of the pallette index in a pixel value. Length indicates the number
51 * of available palette entries (i.e. # of entries = 1 << length).
54 __u32 offset
; /* beginning of bitfield */
55 __u32 length
; /* length of bitfield */
60 #define FB_NONSTD_HAM 1 /* Hold-And-Modify (HAM) */
61 #define FB_NONSTD_REV_PIX_IN_B 2 /* order of pixels in each byte is reversed */
63 #define FB_ACTIVATE_NOW 0 /* set values immediately (or vbl)*/
64 #define FB_ACTIVATE_NXTOPEN 1 /* activate on next open */
65 #define FB_ACTIVATE_TEST 2 /* don't set, round up impossible */
66 #define FB_ACTIVATE_MASK 15
68 #define FB_ACTIVATE_VBL 16 /* activate values on next vbl */
69 #define FB_CHANGE_CMAP_VBL 32 /* change colormap on vbl */
70 #define FB_ACTIVATE_ALL 64 /* change all VCs on this fb */
71 #define FB_ACTIVATE_FORCE 128 /* force apply even when no change*/
72 #define FB_ACTIVATE_INV_MODE 256 /* invalidate videomode */
74 #define FB_SYNC_HOR_HIGH_ACT 1 /* horizontal sync high active */
75 #define FB_SYNC_VERT_HIGH_ACT 2 /* vertical sync high active */
76 #define FB_SYNC_EXT 4 /* external sync */
77 #define FB_SYNC_COMP_HIGH_ACT 8 /* composite sync high active */
78 #define FB_SYNC_BROADCAST 16 /* broadcast video timings */
79 /* vtotal = 144d/288n/576i => PAL */
80 /* vtotal = 121d/242n/484i => NTSC */
81 #define FB_SYNC_ON_GREEN 32 /* sync on green */
83 #define FB_VMODE_NONINTERLACED 0 /* non interlaced */
84 #define FB_VMODE_INTERLACED 1 /* interlaced */
85 #define FB_VMODE_DOUBLE 2 /* double scan */
86 #define FB_VMODE_ODD_FLD_FIRST 4 /* interlaced: top line first */
87 #define FB_VMODE_MASK 255
89 #define FB_VMODE_YWRAP 256 /* ywrap instead of panning */
90 #define FB_VMODE_SMOOTH_XPAN 512 /* smooth xpan possible (internally used) */
91 #define FB_VMODE_CONUPDATE 512 /* don't update x/yoffset */
94 * Display rotation support
96 #define FB_ROTATE_UR 0
97 #define FB_ROTATE_CW 1
98 #define FB_ROTATE_UD 2
99 #define FB_ROTATE_CCW 3
101 #define PICOS2KHZ(a) (1000000000UL/(a))
102 #define KHZ2PICOS(a) (1000000000UL/(a))
104 struct fb_var_screeninfo
{
105 __u32 xres
; /* visible resolution */
107 __u32 xres_virtual
; /* virtual resolution */
109 __u32 xoffset
; /* offset from virtual to visible */
110 __u32 yoffset
; /* resolution */
112 __u32 bits_per_pixel
; /* guess what */
113 __u32 grayscale
; /* != 0 Graylevels instead of colors */
115 struct fb_bitfield red
; /* bitfield in fb mem if true color, */
116 struct fb_bitfield green
; /* else only length is significant */
117 struct fb_bitfield blue
;
118 struct fb_bitfield transp
; /* transparency */
120 __u32 nonstd
; /* != 0 Non standard pixel format */
122 __u32 activate
; /* see FB_ACTIVATE_* */
124 __u32 height
; /* height of picture in mm */
125 __u32 width
; /* width of picture in mm */
127 __u32 accel_flags
; /* (OBSOLETE) see fb_info.flags */
129 /* Timing: All values in pixclocks, except pixclock (of course) */
130 __u32 pixclock
; /* pixel clock in ps (pico seconds) */
131 __u32 left_margin
; /* time from sync to picture */
132 __u32 right_margin
; /* time from picture to sync */
133 __u32 upper_margin
; /* time from sync to picture */
135 __u32 hsync_len
; /* length of horizontal sync */
136 __u32 vsync_len
; /* length of vertical sync */
137 __u32 sync
; /* see FB_SYNC_* */
138 __u32 vmode
; /* see FB_VMODE_* */
139 __u32 rotate
; /* angle we rotate counter clockwise */
140 __u32 reserved
[5]; /* Reserved for future compatibility */
144 __u32 start
; /* First entry */
145 __u32 len
; /* Number of entries */
146 __u16
*red
; /* Red values */
149 __u16
*transp
; /* transparency, can be NULL */
152 struct fb_con2fbmap
{
157 /* VESA Blanking Levels */
158 #define VESA_NO_BLANKING 0
159 #define VESA_VSYNC_SUSPEND 1
160 #define VESA_HSYNC_SUSPEND 2
161 #define VESA_POWERDOWN 3
165 /* screen: unblanked, hsync: on, vsync: on */
166 FB_BLANK_UNBLANK
= VESA_NO_BLANKING
,
168 /* screen: blanked, hsync: on, vsync: on */
169 FB_BLANK_NORMAL
= VESA_NO_BLANKING
+ 1,
171 /* screen: blanked, hsync: on, vsync: off */
172 FB_BLANK_VSYNC_SUSPEND
= VESA_VSYNC_SUSPEND
+ 1,
174 /* screen: blanked, hsync: off, vsync: on */
175 FB_BLANK_HSYNC_SUSPEND
= VESA_HSYNC_SUSPEND
+ 1,
177 /* screen: blanked, hsync: off, vsync: off */
178 FB_BLANK_POWERDOWN
= VESA_POWERDOWN
+ 1
181 #define FB_VBLANK_VBLANKING 0x001 /* currently in a vertical blank */
182 #define FB_VBLANK_HBLANKING 0x002 /* currently in a horizontal blank */
183 #define FB_VBLANK_HAVE_VBLANK 0x004 /* vertical blanks can be detected */
184 #define FB_VBLANK_HAVE_HBLANK 0x008 /* horizontal blanks can be detected */
185 #define FB_VBLANK_HAVE_COUNT 0x010 /* global retrace counter is available */
186 #define FB_VBLANK_HAVE_VCOUNT 0x020 /* the vcount field is valid */
187 #define FB_VBLANK_HAVE_HCOUNT 0x040 /* the hcount field is valid */
188 #define FB_VBLANK_VSYNCING 0x080 /* currently in a vsync */
189 #define FB_VBLANK_HAVE_VSYNC 0x100 /* verical syncs can be detected */
192 __u32 flags
; /* FB_VBLANK flags */
193 __u32 count
; /* counter of retraces since boot */
194 __u32 vcount
; /* current scanline position */
195 __u32 hcount
; /* current scandot position */
196 __u32 reserved
[4]; /* reserved for future compatibility */
199 /* Internal HW accel */
213 __u32 dx
; /* screen-relative */
222 __u32 dx
; /* Where to place image */
224 __u32 width
; /* Size of image */
226 __u32 fg_color
; /* Only used when a mono bitmap */
228 __u8 depth
; /* Depth of the image */
229 const char *data
; /* Pointer to image data */
230 struct fb_cmap cmap
; /* color map info */
234 * hardware cursor control
237 #define FB_CUR_SETIMAGE 0x01
238 #define FB_CUR_SETPOS 0x02
239 #define FB_CUR_SETHOT 0x04
240 #define FB_CUR_SETCMAP 0x08
241 #define FB_CUR_SETSHAPE 0x10
242 #define FB_CUR_SETSIZE 0x20
243 #define FB_CUR_SETALL 0xFF
250 __u16 set
; /* what to set */
251 __u16 enable
; /* cursor on/off */
252 __u16 rop
; /* bitop operation */
253 const char *mask
; /* cursor mask bits */
254 struct fbcurpos hot
; /* cursor hot spot */
255 struct fb_image image
; /* Cursor image */
258 #ifdef CONFIG_FB_BACKLIGHT
259 /* Settings for the generic backlight code */
260 #define FB_BACKLIGHT_LEVELS 128
261 #define FB_BACKLIGHT_MAX 0xFF
266 struct vm_area_struct
;
271 /* Definitions below are used in the parsed monitor specs */
272 #define FB_DPMS_ACTIVE_OFF 1
273 #define FB_DPMS_SUSPEND 2
274 #define FB_DPMS_STANDBY 4
276 #define FB_DISP_DDI 1
277 #define FB_DISP_ANA_700_300 2
278 #define FB_DISP_ANA_714_286 4
279 #define FB_DISP_ANA_1000_400 8
280 #define FB_DISP_ANA_700_000 16
282 #define FB_DISP_MONO 32
283 #define FB_DISP_RGB 64
284 #define FB_DISP_MULTI 128
285 #define FB_DISP_UNKNOWN 256
287 #define FB_SIGNAL_NONE 0
288 #define FB_SIGNAL_BLANK_BLANK 1
289 #define FB_SIGNAL_SEPARATE 2
290 #define FB_SIGNAL_COMPOSITE 4
291 #define FB_SIGNAL_SYNC_ON_GREEN 8
292 #define FB_SIGNAL_SERRATION_ON 16
294 #define FB_MISC_PRIM_COLOR 1
295 #define FB_MISC_1ST_DETAIL 2 /* First Detailed Timing is preferred */
297 __u32 redx
; /* in fraction of 1024 */
308 struct fb_chroma chroma
;
309 struct fb_videomode
*modedb
; /* mode database */
310 __u8 manufacturer
[4]; /* Manufacturer */
311 __u8 monitor
[14]; /* Monitor String */
312 __u8 serial_no
[14]; /* Serial Number */
313 __u8 ascii
[14]; /* ? */
314 __u32 modedb_len
; /* mode database length */
315 __u32 model
; /* Monitor Model */
316 __u32 serial
; /* Serial Number - Integer */
317 __u32 year
; /* Year manufactured */
318 __u32 week
; /* Week Manufactured */
319 __u32 hfmin
; /* hfreq lower limit (Hz) */
320 __u32 hfmax
; /* hfreq upper limit (Hz) */
321 __u32 dclkmin
; /* pixelclock lower limit (Hz) */
322 __u32 dclkmax
; /* pixelclock upper limit (Hz) */
323 __u16 input
; /* display type - see FB_DISP_* */
324 __u16 dpms
; /* DPMS support - see FB_DPMS_ */
325 __u16 signal
; /* Signal Type - see FB_SIGNAL_* */
326 __u16 vfmin
; /* vfreq lower limit (Hz) */
327 __u16 vfmax
; /* vfreq upper limit (Hz) */
328 __u16 gamma
; /* Gamma - in fractions of 100 */
329 __u16 gtf
: 1; /* supports GTF */
330 __u16 misc
; /* Misc flags - see FB_MISC_* */
331 __u8 version
; /* EDID version... */
332 __u8 revision
; /* ...and revision */
333 __u8 max_x
; /* Maximum horizontal size (cm) */
334 __u8 max_y
; /* Maximum vertical size (cm) */
337 struct fb_cmap_user
{
338 __u32 start
; /* First entry */
339 __u32 len
; /* Number of entries */
340 __u16
*red
; /* Red values */
343 __u16
*transp
; /* transparency, can be NULL */
346 struct fb_image_user
{
347 __u32 dx
; /* Where to place image */
349 __u32 width
; /* Size of image */
351 __u32 fg_color
; /* Only used when a mono bitmap */
353 __u8 depth
; /* Depth of the image */
354 const char *data
; /* Pointer to image data */
355 struct fb_cmap_user cmap
; /* color map info */
358 struct fb_cursor_user
{
359 __u16 set
; /* what to set */
360 __u16 enable
; /* cursor on/off */
361 __u16 rop
; /* bitop operation */
362 const char *mask
; /* cursor mask bits */
363 struct fbcurpos hot
; /* cursor hot spot */
364 struct fb_image_user image
; /* Cursor image */
368 * Register/unregister for framebuffer events
371 /* The resolution of the passed in fb_info about to change */
372 #define FB_EVENT_MODE_CHANGE 0x01
373 /* The display on this fb_info is beeing suspended, no access to the
374 * framebuffer is allowed any more after that call returns
376 #define FB_EVENT_SUSPEND 0x02
377 /* The display on this fb_info was resumed, you can restore the display
380 #define FB_EVENT_RESUME 0x03
381 /* An entry from the modelist was removed */
382 #define FB_EVENT_MODE_DELETE 0x04
383 /* A driver registered itself */
384 #define FB_EVENT_FB_REGISTERED 0x05
385 /* A driver unregistered itself */
386 #define FB_EVENT_FB_UNREGISTERED 0x06
387 /* CONSOLE-SPECIFIC: get console to framebuffer mapping */
388 #define FB_EVENT_GET_CONSOLE_MAP 0x07
389 /* CONSOLE-SPECIFIC: set console to framebuffer mapping */
390 #define FB_EVENT_SET_CONSOLE_MAP 0x08
391 /* A hardware display blank change occurred */
392 #define FB_EVENT_BLANK 0x09
393 /* Private modelist is to be replaced */
394 #define FB_EVENT_NEW_MODELIST 0x0A
395 /* The resolution of the passed in fb_info about to change and
396 all vc's should be changed */
397 #define FB_EVENT_MODE_CHANGE_ALL 0x0B
398 /* A software display blank change occurred */
399 #define FB_EVENT_CONBLANK 0x0C
400 /* Get drawing requirements */
401 #define FB_EVENT_GET_REQ 0x0D
402 /* Unbind from the console if possible */
403 #define FB_EVENT_FB_UNBIND 0x0E
406 struct fb_info
*info
;
410 struct fb_blit_caps
{
418 * Pixmap structure definition
420 * The purpose of this structure is to translate data
421 * from the hardware independent format of fbdev to what
422 * format the hardware needs.
425 #define FB_PIXMAP_DEFAULT 1 /* used internally by fbcon */
426 #define FB_PIXMAP_SYSTEM 2 /* memory is in system RAM */
427 #define FB_PIXMAP_IO 4 /* memory is iomapped */
428 #define FB_PIXMAP_SYNC 256 /* set if GPU can DMA */
431 u8
*addr
; /* pointer to memory */
432 u32 size
; /* size of buffer in bytes */
433 u32 offset
; /* current offset to buffer */
434 u32 buf_align
; /* byte alignment of each bitmap */
435 u32 scan_align
; /* alignment per scanline */
436 u32 access_align
; /* alignment per read/write (bits) */
437 u32 flags
; /* see FB_PIXMAP_* */
438 u32 blit_x
; /* supported bit block dimensions (1-32)*/
439 u32 blit_y
; /* Format: blit_x = 1 << (width - 1) */
440 /* blit_y = 1 << (height - 1) */
441 /* if 0, will be set to 0xffffffff (all)*/
443 void (*writeio
)(struct fb_info
*info
, void *dst
, void *src
, unsigned int size
);
444 void (*readio
) (struct fb_info
*info
, void *dst
, void *src
, unsigned int size
);
447 #ifdef CONFIG_FB_DEFERRED_IO
448 struct fb_deferred_io
{
449 /* delay between mkwrite and deferred handler */
451 struct mutex lock
; /* mutex that protects the page list */
452 struct list_head pagelist
; /* list of touched pages */
454 void (*deferred_io
)(struct fb_info
*info
, struct list_head
*pagelist
);
458 /* FBINFO_* = fb_info.flags bit flags */
459 #define FBINFO_MODULE 0x0001 /* Low-level driver is a module */
460 #define FBINFO_HWACCEL_DISABLED 0x0002
461 /* When FBINFO_HWACCEL_DISABLED is set:
462 * Hardware acceleration is turned off. Software implementations
463 * of required functions (copyarea(), fillrect(), and imageblit())
464 * takes over; acceleration engine should be in a quiescent state */
467 #define FBINFO_PARTIAL_PAN_OK 0x0040 /* otw use pan only for double-buffering */
468 #define FBINFO_READS_FAST 0x0080 /* soft-copy faster than rendering */
471 * A driver may set this flag to indicate that it does want a set_par to be
472 * called every time when fbcon_switch is executed. The advantage is that with
473 * this flag set you can really be sure that set_par is always called before
474 * any of the functions dependant on the correct hardware state or altering
475 * that state, even if you are using some broken X releases. The disadvantage
476 * is that it introduces unwanted delays to every console switch if set_par
477 * is slow. It is a good idea to try this flag in the drivers initialization
478 * code whenever there is a bug report related to switching between X and the
479 * framebuffer console.
481 #define FBINFO_MISC_ALWAYS_SETPAR 0x40000
484 * Host and GPU endianness differ.
486 #define FBINFO_FOREIGN_ENDIAN 0x100000
488 * Big endian math. This is the same flags as above, but with different
489 * meaning, it is set by the fb subsystem depending FOREIGN_ENDIAN flag
490 * and host endianness. Drivers should not use this flag.
492 #define FBINFO_BE_MATH 0x100000
497 struct fb_var_screeninfo var
; /* Current var */
498 struct fb_fix_screeninfo fix
; /* Current fix */
499 struct fb_monspecs monspecs
; /* Current Monitor specs */
500 struct fb_pixmap pixmap
; /* Image hardware mapper */
501 struct fb_pixmap sprite
; /* Cursor hardware mapper */
502 struct fb_cmap cmap
; /* Current cmap */
503 struct list_head modelist
; /* mode list */
504 struct fb_videomode
*mode
; /* current mode */
506 char *screen_base
; /* Virtual address */
507 unsigned long screen_size
; /* Amount of ioremapped VRAM or 0 */
508 void *pseudo_palette
; /* Fake palette of 16 colors */
509 #define FBINFO_STATE_RUNNING 0
510 #define FBINFO_STATE_SUSPENDED 1
511 u32 state
; /* Hardware state i.e suspend */
512 void *fbcon_par
; /* fbcon use-only private area */
513 /* From here on everything is device dependent */
517 #define FBINFO_DEFAULT 0
519 #define FBINFO_FLAG_MODULE FBINFO_MODULE
520 #define FBINFO_FLAG_DEFAULT FBINFO_DEFAULT
522 /* This will go away */
523 #if defined(__sparc__)
525 /* We map all of our framebuffers such that big-endian accesses
526 * are what we want, so the following is sufficient.
529 /* This will go away */
530 #define fb_readb sbus_readb
531 #define fb_readw sbus_readw
532 #define fb_readl sbus_readl
533 #define fb_readq sbus_readq
534 #define fb_writeb sbus_writeb
535 #define fb_writew sbus_writew
536 #define fb_writel sbus_writel
537 #define fb_writeq sbus_writeq
538 #define fb_memset sbus_memset_io
540 #elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || defined(__sh__) || defined(__powerpc__) || defined(__avr32__) || defined(__bfin__)
542 #define fb_readb __raw_readb
543 #define fb_readw __raw_readw
544 #define fb_readl __raw_readl
545 #define fb_readq __raw_readq
546 #define fb_writeb __raw_writeb
547 #define fb_writew __raw_writew
548 #define fb_writel __raw_writel
549 #define fb_writeq __raw_writeq
550 #define fb_memset memset_io
554 #define fb_readb(addr) (*(volatile u8 *) (addr))
555 #define fb_readw(addr) (*(volatile u16 *) (addr))
556 #define fb_readl(addr) (*(volatile u32 *) (addr))
557 #define fb_readq(addr) (*(volatile u64 *) (addr))
558 #define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
559 #define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
560 #define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
561 #define fb_writeq(b,addr) (*(volatile u64 *) (addr) = (b))
562 #define fb_memset memset
566 #define FB_LEFT_POS(p, bpp) (fb_be_math(p) ? (32 - (bpp)) : 0)
567 #define FB_SHIFT_HIGH(p, val, bits) (fb_be_math(p) ? (val) >> (bits) : \
569 #define FB_SHIFT_LOW(p, val, bits) (fb_be_math(p) ? (val) << (bits) : \
571 /* drivers/video/fbmon.c */
572 #define FB_MAXTIMINGS 0
573 #define FB_VSYNCTIMINGS 1
574 #define FB_HSYNCTIMINGS 2
575 #define FB_DCLKTIMINGS 3
576 #define FB_IGNOREMON 0x100
578 #define FB_MODE_IS_UNKNOWN 0
579 #define FB_MODE_IS_DETAILED 1
580 #define FB_MODE_IS_STANDARD 2
581 #define FB_MODE_IS_VESA 4
582 #define FB_MODE_IS_CALCULATED 8
583 #define FB_MODE_IS_FIRST 16
584 #define FB_MODE_IS_FROM_VAR 32
587 /* drivers/video/fbcmap.c */
589 extern int fb_alloc_cmap(struct fb_cmap
*cmap
, int len
, int transp
);
590 extern void fb_dealloc_cmap(struct fb_cmap
*cmap
);
591 extern int fb_copy_cmap(const struct fb_cmap
*from
, struct fb_cmap
*to
);
592 extern int fb_cmap_to_user(const struct fb_cmap
*from
, struct fb_cmap_user
*to
);
593 extern int fb_set_cmap(struct fb_cmap
*cmap
, struct fb_info
*fb_info
);
594 extern int fb_set_user_cmap(struct fb_cmap_user
*cmap
, struct fb_info
*fb_info
);
595 extern const struct fb_cmap
*fb_default_cmap(int len
);
596 extern void fb_invert_cmaps(void);
598 struct fb_videomode
{
599 const char *name
; /* optional */
600 u32 refresh
; /* optional */
615 int board_video_skip(void);
617 #endif /* __KERNEL__ */
619 #endif /* _LINUX_FB_H */