1 /* 2 * BeOS Driver for Intel ICH AC'97 Link interface 3 * 4 * Copyright (c) 2002, Marcus Overhagen <marcus@overhagen.de> 5 * 6 * All rights reserved. 7 * Redistribution and use in source and binary forms, with or without modification, 8 * are permitted provided that the following conditions are met: 9 * 10 * - Redistributions of source code must retain the above copyright notice, 11 * this list of conditions and the following disclaimer. 12 * - Redistributions in binary form must reproduce the above copyright notice, 13 * this list of conditions and the following disclaimer in the documentation 14 * and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR 20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 24 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 25 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 */ 28 29 30 #include <KernelExport.h> 31 #include <OS.h> 32 33 #include <stdio.h> 34 #include <fcntl.h> 35 #include <string.h> 36 #include <unistd.h> 37 38 #include <directories.h> 39 40 #include "debug.h" 41 42 43 #define DRIVER_NAME "mpu401" 44 #define VERSION "0.2" 45 46 47 void debug_printf(const char *text,...) 48 { 49 char buf[1024]; 50 va_list ap; 51 52 va_start(ap,text); 53 vsprintf(buf,text,ap); 54 va_end(ap); 55 56 dprintf(DRIVER_NAME ": %s",buf); 57 } 58 59 60 #if DEBUG > 0 61 static const char *logfile = kSystemLogDirectory "/mpu401.log"; 62 static sem_id loglock; 63 64 65 void log_create(void) 66 { 67 int fd = open(logfile, O_WRONLY | O_CREAT | O_TRUNC, 0666); 68 const char *text = DRIVER_NAME ", " VERSION "\n"; 69 loglock = create_sem(1,"logfile sem"); 70 write(fd,text,strlen(text)); 71 close(fd); 72 } 73 74 75 void log_printf(const char *text,...) 76 { 77 int fd; 78 char buf[1024]; 79 va_list ap; 80 81 va_start(ap,text); 82 vsprintf(buf,text,ap); 83 va_end(ap); 84 85 dprintf(DRIVER_NAME ": %s",buf); 86 87 acquire_sem(loglock); 88 fd = open(logfile, O_WRONLY | O_APPEND); 89 write(fd,buf,strlen(buf)); 90 close(fd); 91 release_sem(loglock); 92 93 #if DEBUG > 1 94 snooze(150000); 95 #endif 96 } 97 #endif 98