nes-proj/arch/platform/cooja/dev/eeprom.c

101 lines
3.0 KiB
C

/*
* Copyright (c) 2014, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include <string.h>
#include "dev/eeprom.h"
#include "lib/simEnvChange.h"
const struct simInterface eeprom_interface;
#define EEPROM_BUF_SIZE 1024 /* Configure EEPROM size here and in ContikiEeprom.java */
unsigned char simEEPROMData[EEPROM_BUF_SIZE];
char simEEPROMChanged = 0;
int simEEPROMRead = 0;
int simEEPROMWritten = 0;
void
eeprom_init(void)
{
}
void
eeprom_read(eeprom_addr_t addr, unsigned char *buf, int len)
{
if (addr >= EEPROM_BUF_SIZE) {
return;
}
if(addr + len >= EEPROM_BUF_SIZE) {
len = EEPROM_BUF_SIZE - addr;
}
memcpy(buf, &simEEPROMData[addr], len);
simEEPROMChanged = 1;
simEEPROMRead += len;
}
void
eeprom_write(eeprom_addr_t addr, unsigned char *buf, int len)
{
if (addr >= EEPROM_BUF_SIZE) {
return;
}
if(addr + len >= EEPROM_BUF_SIZE) {
len = EEPROM_BUF_SIZE - addr;
}
memcpy(&simEEPROMData[addr], buf, len);
simEEPROMChanged = 1;
simEEPROMWritten += len;
}
/*-----------------------------------------------------------------------------------*/
static void
doInterfaceActionsBeforeTick(void)
{
}
/*-----------------------------------------------------------------------------------*/
static void
doInterfaceActionsAfterTick(void)
{
}
/*-----------------------------------------------------------------------------------*/
SIM_INTERFACE(eeprom_interface,
doInterfaceActionsBeforeTick,
doInterfaceActionsAfterTick);