mirror of https://github.com/mpv-player/mpv
83 lines
1.9 KiB
C
83 lines
1.9 KiB
C
/*
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* dhahelper test program
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*
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* Copyright (C) 2002 Alex Beregszsaszi
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*
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* This file is part of MPlayer.
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*
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* MPlayer 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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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <string.h>
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#include <stdio.h>
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#include <sys/ioctl.h>
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#include <unistd.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <sys/mman.h>
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#include "dhahelper.h"
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int main(int argc, char *argv[])
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{
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int fd;
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int ret;
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fd = open("/dev/dhahelper", O_RDWR);
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ioctl(fd, DHAHELPER_GET_VERSION, &ret);
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printf("api version: %d\n", ret);
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if (ret != API_VERSION)
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printf("incompatible api!\n");
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{
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dhahelper_memory_t mem;
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mem.operation = MEMORY_OP_MAP;
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//mem.start = 0xe0000000;
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mem.start = 0xe4000008;
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mem.offset = 0;
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mem.size = 0x4000;
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mem.ret = 0;
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ret = ioctl(fd, DHAHELPER_MEMORY, &mem);
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printf("ret: %s\n", strerror(errno));
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mem.ret = (int)mmap(NULL, (size_t)mem.size, PROT_READ, MAP_SHARED, fd, (off_t)0);
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printf("allocated to %x\n", mem.ret);
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if (argc > 1)
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if (mem.ret != 0)
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{
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int i;
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for (i = 0; i < 256; i++)
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printf("[%x] ", *(int *)(mem.ret+i));
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printf("\n");
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}
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munmap((void *)mem.ret, mem.size);
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mem.operation = MEMORY_OP_UNMAP;
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mem.start = mem.ret;
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ioctl(fd, DHAHELPER_MEMORY, &mem);
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}
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return 0;
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}
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