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74 lines
1.4 KiB
C
74 lines
1.4 KiB
C
/*
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* ben/ben.c - Cross-platform testing on the Ben Nanonote
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*
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* Written 2012 by Werner Almesberger
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* Copyright 2012 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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#include <stdlib.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <sys/mman.h>
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#include "../mmc.h"
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#include "io.h"
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#define SOC_BASE 0x10000000
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#define PAGE_SIZE 4096
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void *ben_mem;
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static void io_setup(void)
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{
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int fd;
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fd = open("/dev/mem", O_RDWR | O_SYNC);
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if (fd < 0) {
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perror("/dev/mem");
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exit(1);
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}
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ben_mem = mmap(NULL, PAGE_SIZE*3*16, PROT_READ | PROT_WRITE,
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MAP_SHARED, fd, SOC_BASE);
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if (ben_mem == MAP_FAILED) {
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perror("mmap");
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exit(1);
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}
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PDDATS = CARD_nPWR;
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PDDIRS = CARD_nPWR;
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PDDIRC = CARD_CMD | CARD_CLK |
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CARD_DAT0 | CARD_DAT1 | CARD_DAT2 | CARD_DAT3;
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PDFUNC = CARD_nPWR | CARD_CMD | CARD_CLK |
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CARD_DAT0 | CARD_DAT1 | CARD_DAT2 | CARD_DAT3;
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}
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int main(void)
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{
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int i;
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io_setup();
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if (!mmc_init()) {
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fprintf(stderr, "mmc_init failed\n");
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exit(1);
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}
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if (!mmc_begin_read(0)) {
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fprintf(stderr, "mmc_begin_read failed\n");
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exit(1);
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}
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for (i = 0; i != MMC_BLOCK; i++)
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printf("%02x%c", mmc_read(), (i & 15) == 15 ? '\n' : ' ');
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mmc_end_read();
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return 0;
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}
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