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| Source at commit 30c683effd7ab362d1517950700c96cfa09e45e8 created 11 years 17 days ago. By Werner Almesberger, tornado/fw/sim/p: pass arguments to "alg"; label graphs; better separate "up" | |
|---|---|
| 1 | /* |
| 2 | * ben/ben.c - Cross-platform testing on the Ben Nanonote |
| 3 | * |
| 4 | * Written 2012 by Werner Almesberger |
| 5 | * Copyright 2012 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 | #include <stdlib.h> |
| 14 | #include <stdio.h> |
| 15 | #include <string.h> |
| 16 | #include <unistd.h> |
| 17 | #include <fcntl.h> |
| 18 | #include <sys/mman.h> |
| 19 | |
| 20 | #include "../mmc.h" |
| 21 | #include "io.h" |
| 22 | |
| 23 | |
| 24 | #define SOC_BASE 0x10000000 |
| 25 | #define PAGE_SIZE 4096 |
| 26 | |
| 27 | |
| 28 | void *ben_mem; |
| 29 | |
| 30 | |
| 31 | static void io_setup(void) |
| 32 | { |
| 33 | int fd; |
| 34 | |
| 35 | fd = open("/dev/mem", O_RDWR | O_SYNC); |
| 36 | if (fd < 0) { |
| 37 | perror("/dev/mem"); |
| 38 | exit(1); |
| 39 | } |
| 40 | ben_mem = mmap(NULL, PAGE_SIZE*3*16, PROT_READ | PROT_WRITE, |
| 41 | MAP_SHARED, fd, SOC_BASE); |
| 42 | if (ben_mem == MAP_FAILED) { |
| 43 | perror("mmap"); |
| 44 | exit(1); |
| 45 | } |
| 46 | |
| 47 | PDDATS = CARD_nPWR; |
| 48 | PDDIRS = CARD_nPWR; |
| 49 | PDDIRC = CARD_CMD | CARD_CLK | |
| 50 | CARD_DAT0 | CARD_DAT1 | CARD_DAT2 | CARD_DAT3; |
| 51 | PDFUNC = CARD_nPWR | CARD_CMD | CARD_CLK | |
| 52 | CARD_DAT0 | CARD_DAT1 | CARD_DAT2 | CARD_DAT3; |
| 53 | } |
| 54 | |
| 55 | |
| 56 | static void read_block(int addr) |
| 57 | { |
| 58 | int i; |
| 59 | |
| 60 | if (!mmc_begin_read(addr)) { |
| 61 | fprintf(stderr, "mmc_begin_read failed\n"); |
| 62 | exit(1); |
| 63 | } |
| 64 | for (i = 0; i != MMC_BLOCK; i++) |
| 65 | printf("%02x%c", mmc_read(), (i & 15) == 15 ? '\n' : ' '); |
| 66 | mmc_end_read(); |
| 67 | } |
| 68 | |
| 69 | |
| 70 | static void write_block(int addr) |
| 71 | { |
| 72 | int i; |
| 73 | |
| 74 | if (!mmc_begin_write(addr)) { |
| 75 | fprintf(stderr, "mmc_begin_write failed\n"); |
| 76 | exit(1); |
| 77 | } |
| 78 | for (i = 0; i != MMC_BLOCK; i++) |
| 79 | mmc_write(i); |
| 80 | if (!mmc_end_write()) { |
| 81 | fprintf(stderr, "mmc_end_write failed\n"); |
| 82 | exit(1); |
| 83 | } |
| 84 | } |
| 85 | |
| 86 | |
| 87 | static void usage(const char *name) |
| 88 | { |
| 89 | fprintf(stderr, "usage: %s [-w] [byte_addr]\n", name); |
| 90 | exit(1); |
| 91 | } |
| 92 | |
| 93 | |
| 94 | int main(int argc, char **argv) |
| 95 | { |
| 96 | int do_read = 1; |
| 97 | int addr; |
| 98 | int c; |
| 99 | char *end; |
| 100 | |
| 101 | io_setup(); |
| 102 | |
| 103 | if (!mmc_init()) { |
| 104 | fprintf(stderr, "mmc_init failed\n"); |
| 105 | exit(1); |
| 106 | } |
| 107 | |
| 108 | while ((c = getopt(argc, argv, "w")) != EOF) |
| 109 | switch (c) { |
| 110 | case 'w': |
| 111 | do_read = 0; |
| 112 | break; |
| 113 | default: |
| 114 | usage(*argv); |
| 115 | } |
| 116 | |
| 117 | switch (argc-optind) { |
| 118 | case 0: |
| 119 | addr = 0; |
| 120 | break; |
| 121 | case 1: |
| 122 | addr = strtoul(argv[optind], &end, 0); |
| 123 | if (*end) |
| 124 | usage(*argv); |
| 125 | break; |
| 126 | default: |
| 127 | usage(*argv); |
| 128 | } |
| 129 | |
| 130 | if (do_read) |
| 131 | read_block(addr); |
| 132 | else |
| 133 | write_block(addr); |
| 134 | |
| 135 | return 0; |
| 136 | } |
| 137 | |
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