00001 /* 00002 * Copyright (C) 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 00054 #if defined(__IMAGECRAFT__) 00055 #include <eeprom.h> 00056 #elif defined(__GNUC__) 00057 #include <avr/eeprom.h> 00058 #endif 00059 00060 #include <dev/nvmem.h> 00061 00066 00072 int OnChipNvMemLoad(u_int addr, void *buff, size_t siz) 00073 { 00074 #if defined(__IMAGECRAFT__) 00075 EEPROMReadBytes((int)addr, buff, siz); 00076 #elif defined(__GNUC__) 00077 eeprom_read_block (buff, (void *)addr, siz); 00078 #endif 00079 return 0; 00080 } 00081 00087 int OnChipNvMemSave(u_int addr, CONST void *buff, size_t len) 00088 { 00089 u_char *cp; 00090 size_t i; 00091 00092 for (cp = (u_char *) buff, i = 0; i < len; cp++, i++) { 00093 #if defined(__IMAGECRAFT__) 00094 if (EEPROMread((int) (addr + i)) != *cp) { 00095 EEPROMwrite((int) (addr + i), *cp); 00096 } 00097 #elif defined(__GNUC__) 00098 if (eeprom_read_byte((uint8_t *) (addr + i)) != *cp) { 00099 eeprom_write_byte((uint8_t *) (addr + i), *cp); 00100 } 00101 #endif 00102 } 00103 return 0; 00104 } 00105