Root/
| 1 | /* |
| 2 | * ubb-vga.h - Output video on UBB with more or less VGA timing |
| 3 | * |
| 4 | * Written 2011 by Werner Almesberger |
| 5 | * Copyright 2011 Werner Almesberger |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | */ |
| 12 | |
| 13 | #ifndef UBB_VGA_H |
| 14 | #define UBB_VGA_H |
| 15 | |
| 16 | #include <stdint.h> |
| 17 | #include <sys/types.h> |
| 18 | |
| 19 | |
| 20 | #define R_VAL (1 << 3) |
| 21 | #define G_VAL (1 << 0) |
| 22 | #define B_VAL (1 << 1) |
| 23 | #define Y_VAL (1 << 2) |
| 24 | |
| 25 | |
| 26 | struct mode { |
| 27 | const char *name; /* NULL for end of table */ |
| 28 | int xres, yres; |
| 29 | int clkdiv; /* pixel clock = 336 MHz/(clkdiv+1) */ |
| 30 | int vsync_lines; /* 2 lines, for official VGA */ |
| 31 | int vfront_lines; /* 32 lines */ |
| 32 | int vback_lines; /* 14 lines */ |
| 33 | uint16_t hsync_cycles; /* 3.77 us */ |
| 34 | uint16_t hback_cycles; /* 0.79 us */ |
| 35 | uint16_t line_cycles; /* 31.77 us */ |
| 36 | }; |
| 37 | |
| 38 | extern const struct mode *mode; |
| 39 | |
| 40 | |
| 41 | void *map(off_t addr, size_t size); |
| 42 | |
| 43 | |
| 44 | #define CYCLES(cy) ((cy)/112.0) |
| 45 | |
| 46 | |
| 47 | /* ccube.c */ |
| 48 | |
| 49 | uint8_t ccube_map(uint8_t r, uint8_t g, uint8_t b); |
| 50 | void ccube_init(void); |
| 51 | |
| 52 | /* physmem.c */ |
| 53 | |
| 54 | void **calloc_phys_vec(size_t n, size_t size); |
| 55 | unsigned long *xlat_virt(void *const *v, size_t n); |
| 56 | |
| 57 | /* grabfb.c */ |
| 58 | |
| 59 | void grabfb(void **f, int xres, int yres); |
| 60 | |
| 61 | /* tstimg.c */ |
| 62 | |
| 63 | void tstimg(void **f, int xres, int yres); |
| 64 | |
| 65 | /* ppmimg.c */ |
| 66 | |
| 67 | extern char *img_name; |
| 68 | |
| 69 | void ppmimg(void **f, int xres, int yres); |
| 70 | |
| 71 | #endif /* !UBB_VGA_H */ |
| 72 |
Branches:
master
