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/*
* Copyright (C) 2018 John Donoghue <john.donoghue@ieee.org>
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see
* <https://www.gnu.org/licenses/>.
*/
#include "LibraryBase.h"
#include <EEPROM.h> // arduino liquid crystal library
#define EEPROM_INIT 0x00
#define EEPROM_ERASE 0x01
#define EEPROM_READ 0x02
#define EEPROM_WRITE 0x03
class EEPRom : public LibraryBase
{
public:
EEPRom(OctaveArduinoClass& a)
{
libName = "EEPRomAddon/EEProm";
a.registerLibrary(this);
}
void commandHandler(uint8_t cmdId, uint8_t* data, uint8_t datasz)
{
switch(cmdId)
{
case EEPROM_INIT:
{
uint16_t sz = EEPROM.length();
data[0] = (sz>>8)&0xff;
data[1] = (sz)&0xff;
sendResponseMsg(cmdId, data, 2);
break;
}
case EEPROM_ERASE:
{
for (int a=0;a<EEPROM.length();a++) {
EEPROM.update(a, 0xff);
}
sendResponseMsg(cmdId, 0, 0);
break;
}
case EEPROM_READ:
{
if(datasz == 3)
{
datasz = data[2];
uint16_t addr = (uint16_t(data[0])<<8) | data[1];
for(int i=0;i<datasz;i++) {
data[i] = EEPROM.read(addr+i);
}
sendResponseMsg(cmdId, data, datasz);
}
else
{
sendInvalidNumArgsMsg();
}
break;
}
case EEPROM_WRITE:
{
if(datasz >= 3)
{
uint16_t addr = (uint16_t(data[0])<<8) | data[1];
datasz = datasz-2;
for(int i=0;i<datasz;i++) {
EEPROM.update(addr+i, data[i+2]);
}
data[0] = datasz;
sendResponseMsg(cmdId, data, 1);
}
else
{
sendInvalidNumArgsMsg();
}
break;
}
default:
{
// notify of invalid cmd
sendUnknownCmdIDMsg();
}
break;
}
}
};
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