tests/dev/audio/h_pad.c

   1 /*      $NetBSD: h_pad.c,v 1.1 2010/08/04 13:15:15 pooka Exp $  */
   2
   3 /*
   4  * Copyright (c) 2010 Antti Kantee.  All Rights Reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
  16  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  17  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  18  * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  21  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25  * SUCH DAMAGE.
  26  */
  27
  28 #include <sys/types.h>
  29
  30 #include <rump/rump.h>
  31 #include <rump/rump_syscalls.h>
  32
  33 #include <err.h>
  34 #include <fcntl.h>
  35 #include <stdio.h>
  36 #include <stdlib.h>
  37 #include <string.h>
  38 #include <unistd.h>
  39
  40 #include "h_pad_musa.c"
  41
  42 /*
  43  * Stuff some audio into /dev/audio, read it from /dev/pad.  Use in
  44  * conjunction with t_pad, which tests that we got sensible output
  45  * by comparing against a previous audibly good result.
  46  */
  47
  48 #define BUFSIZE 1024
  49
  50 int
  51 main(int argc, char *argv[])
  52 {
  53         char buf[BUFSIZE];
  54         char zeros[BUFSIZE];
  55         int padfd, audiofd;
  56         ssize_t n;
  57
  58         rump_init();
  59         audiofd = rump_sys_open("/dev/audio0", O_RDWR);
  60         if (audiofd == -1)
  61                 err(1, "open audio");
  62
  63         padfd = rump_sys_open("/dev/pad0", O_RDONLY);
  64         if (padfd == -1)
  65                 err(1, "open pad");
  66
  67         if ((n = rump_sys_write(audiofd, musa, sizeof(musa))) != sizeof(musa))
  68                 err(1, "write");
  69
  70         memset(zeros, 0, sizeof(zeros));
  71         while ((n = rump_sys_read(padfd, buf, sizeof(buf))) > 0) {
  72                 if (memcmp(buf, zeros, sizeof(buf)) == 0)
  73                         break;
  74                 write(STDOUT_FILENO, buf, n);
  75         }
  76 }