/*
 * This file is part of the flash project.
 * Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
 *
 * 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 <http://www.gnu.org/licenses/>.
 */

#pragma once

#include <stdint.h>
#include "hardware.h"

// register with flash size (in blocks)
#ifndef FLASH_SIZE_REG
#define FLASH_SIZE_REG      ((uint32_t)0x1FFF75E0)
#endif
#ifndef FLASH_SIZE
#define FLASH_SIZE          *((uint16_t*)FLASH_SIZE_REG)
#endif

/*
 * struct to save user configurations
 */
typedef struct __attribute__((packed, aligned(8))){
    uint16_t userconf_sz;               // "magick number"
    uint32_t usart_speed;               // speed of interface
    uint16_t startpulse[SERVO_AMOUNT];  // starting position
    uint16_t minpulse[SERVO_AMOUNT];    // minimal position
    uint16_t maxpulse[SERVO_AMOUNT];    // maximal position
    uint16_t maxspeed[SERVO_AMOUNT];    // maximal speed
} user_conf;

extern user_conf the_conf; // global user config (read from FLASH to RAM)
extern int currentconfidx;
extern uint32_t maxCnum;

void flashstorage_init();
int store_userconf();
void dump_userconf();
int erase_storage();