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/* sniff_eeprom.c */
/* es - Input/Output general purpose board. {{{
 *
 * Copyright (C) 2006 Dufour J�r�my
 *
 * Robot APB Team/Efrei 2004.
 *        Web: http://assos.efrei.fr/robot/
 *      Email: robot AT efrei DOT fr
 *
 * 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 2 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 * }}} */

#include <avr/eeprom.h>

/* Change the eeprom key each time you change eeprom format. */
#define EEPROM_KEY 0x45
#define EEPROM_START 256

/* +AutoDec */
/* -AutoDec */

/* Read parameters from eeprom. */
static void
sensor_eeprom_read_params (void)
{
    uint8_t *p8 = (uint8_t *) EEPROM_START;
    uint16_t *p16;
    uint8_t sensor, compt, color;
    if (eeprom_read_byte (p8++) != EEPROM_KEY)
	return;
    p16 = (uint16_t *) p8;
    for (sensor = 0; sensor < RVB_MAX_SENSOR; sensor++)
	for (compt = 0; compt < RVB_SNIFF_MAX_INDEX; compt++)
	    sniff_rvb_reference_color[sensor][compt] = eeprom_read_word (p16++);
    for (color = 0; color < 2; color++)
	for (sensor = 0; sensor < RVB_MAX_SENSOR; sensor++)
	    for (compt = 0; compt < RVB_SNIFF_MAX_INDEX; compt++)
		sniff_rvb_threshold[color][sensor][compt] = eeprom_read_word (p16++);
    p8 = (uint8_t *) p16;
    for (color = 0; color < 2; color++)
	for (sensor = 0; sensor < RVB_MAX_SENSOR; sensor++)
	    for (compt = 0; compt < RVB_SNIFF_MAX_INDEX; compt++)
		sniff_rvb_sign[color][sensor][compt] = eeprom_read_byte (p8++);
}

/* Write parameters to eeprom. */
static void
sensor_eeprom_write_params (void)
{
    uint8_t *p8 = (uint8_t *) EEPROM_START;
    uint16_t *p16;
    uint8_t sensor, compt, color;
    eeprom_write_byte (p8++, EEPROM_KEY);
    p16 = (uint16_t *) p8;
    for (sensor = 0; sensor < RVB_MAX_SENSOR; sensor++)
	for (compt = 0; compt < RVB_SNIFF_MAX_INDEX; compt++)
	    eeprom_write_word (p16++, sniff_rvb_reference_color[sensor][compt]);
    for (color = 0; color < 2; color++)
	for (sensor = 0; sensor < RVB_MAX_SENSOR; sensor++)
	    for (compt = 0; compt < RVB_SNIFF_MAX_INDEX; compt++)
		eeprom_write_word (p16++, sniff_rvb_threshold[color][sensor][compt]);
    p8 = (uint8_t *) p16;
    for (color = 0; color < 2; color++)
	for (sensor = 0; sensor < RVB_MAX_SENSOR; sensor++)
	    for (compt = 0; compt < RVB_SNIFF_MAX_INDEX; compt++)
		eeprom_write_byte (p8++, sniff_rvb_sign[color][sensor][compt]);
}

/* Clear eeprom parameters. */
// static void
// sensor_eeprom_clear_params (void)
// {
//     uint8_t *p = (uint8_t *) EEPROM_START;
//     eeprom_write_byte (p, 0xff);
// }