vidix/dhahelper/test.c

   1 /*
   2  * dhahelper test program
   3  *
   4  * Copyright (C) 2002 Alex Beregszsaszi
   5  *
   6  * This file is part of MPlayer.
   7  *
   8  * MPlayer is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * MPlayer is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  20  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  21  */
  22
  23 #include <string.h>
  24 #include <stdio.h>
  25 #include <sys/ioctl.h>
  26 #include <unistd.h>
  27 #include <errno.h>
  28 #include <fcntl.h>
  29 #include <sys/mman.h>
  30
  31 #include "dhahelper.h"
  32
  33 int main(int argc, char *argv[])
  34 {
  35     int fd;
  36     int ret;
  37
  38     fd = open("/dev/dhahelper", O_RDWR);
  39
  40     ioctl(fd, DHAHELPER_GET_VERSION, &ret);
  41
  42     printf("api version: %d\n", ret);
  43     if (ret != API_VERSION)
  44         printf("incompatible api!\n");
  45
  46     {
  47         dhahelper_memory_t mem;
  48
  49         mem.operation = MEMORY_OP_MAP;
  50         //mem.start = 0xe0000000;
  51         mem.start = 0xe4000008;
  52         mem.offset = 0;
  53         mem.size = 0x4000;
  54         mem.ret = 0;
  55
  56         ret = ioctl(fd, DHAHELPER_MEMORY, &mem);
  57
  58         printf("ret: %s\n", strerror(errno));
  59
  60         mem.ret = (int)mmap(NULL, (size_t)mem.size, PROT_READ, MAP_SHARED, fd, (off_t)0);
  61         printf("allocated to %x\n", mem.ret);
  62
  63         if (argc > 1)
  64             if (mem.ret != 0)
  65             {
  66                 int i;
  67
  68                 for (i = 0; i < 256; i++)
  69                     printf("[%x] ", *(int *)(mem.ret+i));
  70                 printf("\n");
  71             }
  72
  73         munmap((void *)mem.ret, mem.size);
  74
  75         mem.operation = MEMORY_OP_UNMAP;
  76         mem.start = mem.ret;
  77
  78         ioctl(fd, DHAHELPER_MEMORY, &mem);
  79     }
  80
  81     return 0;
  82 }