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 00057 #if defined(__IMAGECRAFT__) 00058 #include <eeprom.h> 00059 #elif defined(__GNUC__) 00060 #include <avr/eeprom.h> 00061 #endif 00062 00063 #include <dev/nvmem.h> 00064 00065 #include <stdint.h> 00066 00071 00077 int OnChipNvMemLoad(u_int addr, void *buff, size_t siz) 00078 { 00079 #if defined(__IMAGECRAFT__) 00080 EEPROMReadBytes((int)addr, buff, siz); 00081 #elif defined(__GNUC__) 00082 eeprom_read_block (buff, (void *)addr, siz); 00083 #endif 00084 return 0; 00085 } 00086 00092 int OnChipNvMemSave(u_int addr, CONST void *buff, size_t len) 00093 { 00094 uint8_t *cp; 00095 size_t i; 00096 00097 for (cp = (uint8_t *) buff, i = 0; i < len; cp++, i++) { 00098 #if defined(__IMAGECRAFT__) 00099 if (EEPROMread((int) (addr + i)) != *cp) { 00100 EEPROMwrite((int) (addr + i), *cp); 00101 } 00102 #elif defined(__GNUC__) 00103 if (eeprom_read_byte((uint8_t *) (addr + i)) != *cp) { 00104 eeprom_write_byte((uint8_t *) (addr + i), *cp); 00105 } 00106 #endif 00107 } 00108 return 0; 00109 } 00110