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h_pad.c revision 1.1.28.1 
      1 /*	$NetBSD: h_pad.c,v 1.1.28.1 2016/11/04 14:49:23 pgoyette 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 	padfd = rump_sys_open("/dev/pad0", O_RDONLY);
     60 	if (padfd == -1)
     61 		err(1, "open pad");
     62 
     63 	audiofd = rump_sys_open("/dev/audio0", O_RDWR);
     64 	if (audiofd == -1)
     65 		err(1, "open audio");
     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 }
     77