mirror of
git://projects.qi-hardware.com/ben-blinkenlights.git
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9412c9debe
- ubb-vga.c (CYCLES), ubb-vga.h: corrected conversion and moved to ubb-vga.h - tstimg.c (printc): added characters '=' and '+' - tstimg.c (tstimg): print detailed horizontal and vertical timing
72 lines
1.5 KiB
C
72 lines
1.5 KiB
C
/*
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* ubb-vga.h - Output video on UBB with more or less VGA timing
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*
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* Written 2011 by Werner Almesberger
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* Copyright 2011 Werner Almesberger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef UBB_VGA_H
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#define UBB_VGA_H
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#include <stdint.h>
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#include <sys/types.h>
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#define R_VAL (1 << 3)
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#define G_VAL (1 << 0)
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#define B_VAL (1 << 1)
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#define Y_VAL (1 << 2)
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struct mode {
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const char *name; /* NULL for end of table */
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int xres, yres;
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int clkdiv; /* pixel clock = 336 MHz/(clkdiv+1) */
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int vsync_lines; /* 2 lines, for official VGA */
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int vfront_lines; /* 32 lines */
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int vback_lines; /* 14 lines */
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uint16_t hsync_cycles; /* 3.77 us */
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uint16_t hback_cycles; /* 0.79 us */
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uint16_t line_cycles; /* 31.77 us */
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};
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extern const struct mode *mode;
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void *map(off_t addr, size_t size);
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#define CYCLES(cy) ((cy)/112.0)
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/* ccube.c */
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uint8_t ccube_map(uint8_t r, uint8_t g, uint8_t b);
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void ccube_init(void);
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/* physmem.c */
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void **calloc_phys_vec(size_t n, size_t size);
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unsigned long *xlat_virt(void *const *v, size_t n);
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/* grabfb.c */
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void grabfb(void **f, int xres, int yres);
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/* tstimg.c */
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void tstimg(void **f, int xres, int yres);
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/* ppmimg.c */
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extern char *img_name;
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void ppmimg(void **f, int xres, int yres);
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#endif /* !UBB_VGA_H */
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