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: confos.c,v $ 00036 * Revision 1.9 2006/05/25 09:18:28 haraldkipp 00037 * API documentation updated and corrected. 00038 * 00039 * Revision 1.8 2006/01/23 19:50:48 haraldkipp 00040 * Dummy NVMEM configuration for GBA added. 00041 * 00042 * Revision 1.7 2006/01/23 17:26:17 haraldkipp 00043 * Platform independant routines added, which provide generic access to 00044 * non-volatile memory. 00045 * 00046 * Revision 1.6 2005/07/26 15:49:59 haraldkipp 00047 * Cygwin support added. 00048 * 00049 * Revision 1.5 2004/09/08 10:24:34 haraldkipp 00050 * No EEPROM support for AT91 00051 * 00052 * Revision 1.4 2004/04/07 12:13:58 haraldkipp 00053 * Matthias Ringwald's *nix emulation added 00054 * 00055 * Revision 1.3 2004/03/16 16:48:45 haraldkipp 00056 * Added Jan Dubiec's H8/300 port. 00057 * 00058 * Revision 1.2 2004/03/03 17:42:19 drsung 00059 * Bugfix in NutSaveConfig. Write only to eeprom if actual byte in 00060 * eeprom differs from byte to write. 00061 * 00062 * Revision 1.1.1.1 2003/05/09 14:41:46 haraldkipp 00063 * Initial using 3.2.1 00064 * 00065 * Revision 1.1 2003/02/04 18:17:07 harald 00066 * Version 3 released 00067 * 00068 */ 00069 00070 #include <cfg/arch.h> 00071 #include <sys/confos.h> 00072 #include <dev/nvmem.h> 00073 00078 00085 CONFOS confos; 00086 00095 int NutLoadConfig(void) 00096 { 00097 #if !defined(__linux__) && !defined(__APPLE__) && !defined(__CYGWIN__) && !defined(MCU_GBA) 00098 if (NutNvMemLoad(CONFOS_EE_OFFSET, &confos, sizeof(CONFOS))) { 00099 return -1; 00100 } 00101 if (confos.size != sizeof(CONFOS) || confos.magic[0] != 'O' || confos.magic[1] != 'S') { 00102 return -1; 00103 } 00104 #endif 00105 return 0; 00106 } 00107 00113 int NutSaveConfig(void) 00114 { 00115 #if !defined(__linux__) && !defined(__APPLE__) && !defined(__CYGWIN__) && !defined(MCU_GBA) 00116 confos.size = sizeof(CONFOS); 00117 confos.magic[0] = 'O'; 00118 confos.magic[1] = 'S'; 00119 if (NutNvMemSave(CONFOS_EE_OFFSET, &confos, sizeof(CONFOS))) { 00120 return -1; 00121 } 00122 #endif 00123 return 0; 00124 } 00125