00001 /* 00002 * Copyright (C) 2001-2006 by egnite Software GmbH. All rights reserved. 00003 * 00004 * Redistribution and use in source and binary forms, with or without 00005 * modification, are permitted provided that the following conditions 00006 * are met: 00007 * 00008 * 1. Redistributions of source code must retain the above copyright 00009 * notice, this list of conditions and the following disclaimer. 00010 * 2. Redistributions in binary form must reproduce the above copyright 00011 * notice, this list of conditions and the following disclaimer in the 00012 * documentation and/or other materials provided with the distribution. 00013 * 3. Neither the name of the copyright holders nor the names of 00014 * contributors may be used to endorse or promote products derived 00015 * from this software without specific prior written permission. 00016 * 00017 * THIS SOFTWARE IS PROVIDED BY EGNITE SOFTWARE GMBH AND CONTRIBUTORS 00018 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00019 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 00020 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL EGNITE 00021 * SOFTWARE GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 00022 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 00023 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 00024 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 00025 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 00026 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 00027 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00028 * SUCH DAMAGE. 00029 * 00030 * For additional information see http://www.ethernut.de/ 00031 * 00032 */ 00033 00034 /* 00035 * $Log: confnet.c,v $ 00036 * Revision 1.8 2006/05/25 09:18:28 haraldkipp 00037 * API documentation updated and corrected. 00038 * 00039 * Revision 1.7 2006/01/23 17:26:18 haraldkipp 00040 * Platform independant routines added, which provide generic access to 00041 * non-volatile memory. 00042 * 00043 * Revision 1.6 2005/10/04 05:37:34 hwmaier 00044 * Removed preprocessor warning message for AT90CAN128 MCU as this device is now supported by avr-libc. 00045 * 00046 * Revision 1.5 2005/07/26 15:49:59 haraldkipp 00047 * Cygwin support added. 00048 * 00049 * Revision 1.4 2005/02/10 07:06:50 hwmaier 00050 * Changes to incorporate support for AT90CAN128 CPU 00051 * 00052 * Revision 1.3 2004/04/07 12:13:58 haraldkipp 00053 * Matthias Ringwald's *nix emulation added 00054 * 00055 * Revision 1.2 2003/07/13 19:03:06 haraldkipp 00056 * Make empty MAC broadcast. 00057 * 00058 * Revision 1.1.1.1 2003/05/09 14:41:27 haraldkipp 00059 * Initial using 3.2.1 00060 * 00061 * Revision 1.2 2003/05/06 18:22:48 harald 00062 * EEPROM corruption fixed 00063 * 00064 * Revision 1.1 2003/02/04 18:15:26 harald 00065 * Version 3 released 00066 * 00067 */ 00068 00069 #include <string.h> 00070 #include <arpa/inet.h> 00071 #include <sys/confnet.h> 00072 #include <dev/nvmem.h> 00073 00078 00085 CONFNET confnet; 00086 00099 int NutNetLoadConfig(CONST char *name) 00100 { 00101 #if !defined(__linux__) && !defined(__APPLE__) && !defined(__CYGWIN__) 00102 if (NutNvMemLoad(CONFNET_EE_OFFSET, &confnet, sizeof(CONFNET))) { 00103 return -1; 00104 } 00105 if (confnet.cd_size == sizeof(CONFNET) && strcmp(confnet.cd_name, name) == 0) { 00106 return 0; 00107 } 00108 #endif 00109 memset(&confnet, 0, sizeof(confnet)); 00110 00111 /* 00112 * Set initial MAC address to broadcast. Thanks to Tomohiro 00113 * Haraikawa, who pointed out that all zeroes is occupied by 00114 * Xerox and should not be used. 00115 */ 00116 memset(confnet.cdn_mac, 0xFF, sizeof(confnet.cdn_mac)); 00117 00118 return -1; 00119 } 00120 00126 int NutNetSaveConfig(void) 00127 { 00128 #if !defined(__linux__) && !defined(__APPLE__) && !defined(__CYGWIN__) 00129 confnet.cd_size = sizeof(CONFNET); 00130 if (NutNvMemSave(CONFNET_EE_OFFSET, &confnet, sizeof(CONFNET))) { 00131 return -1; 00132 } 00133 #endif 00134 return 0; 00135 } 00136