1 /* $NetBSD: h_pad.c,v 1.2 2016/10/15 07:08:06 nat 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