/*
 * ESPRESSIF MIT License
 *
 * Copyright (c) 2016 <ESPRESSIF SYSTEMS (SHANGHAI) PTE LTD>
 *
 * Permission is hereby granted for use on ESPRESSIF SYSTEMS ESP8266 only, in which case,
 * it is free of charge, to any person obtaining a copy of this software and associated
 * documentation files (the "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the Software is furnished
 * to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or
 * substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */

#ifndef __UPGRADE_H__
#define __UPGRADE_H__

#define SPI_FLASH_SEC_SIZE      4096
#define LIMIT_ERASE_SIZE		0x10000

#define USER_BIN1               0x00
#define USER_BIN2               0x01

#define UPGRADE_FLAG_IDLE       0x00
#define UPGRADE_FLAG_START      0x01
#define UPGRADE_FLAG_FINISH     0x02

#define UPGRADE_FW_BIN1         0x00
#define UPGRADE_FW_BIN2         0x01

typedef void (*upgrade_states_check_callback)(void * arg);

//#define UPGRADE_SSL_ENABLE

struct upgrade_server_info {
    uint8 ip[4];
    uint16 port;

    uint8 upgrade_flag;

    uint8 pre_version[16];
    uint8 upgrade_version[16];

    uint32 check_times;
    uint8 *url;

    upgrade_states_check_callback check_cb;
    struct espconn *pespconn;
};

#define UPGRADE_FLAG_IDLE       0x00
#define UPGRADE_FLAG_START      0x01
#define UPGRADE_FLAG_FINISH     0x02

void system_upgrade_init();
void system_upgrade_deinit();
bool system_upgrade(uint8 *data, uint16 len);

#ifdef UPGRADE_SSL_ENABLE
bool system_upgrade_start_ssl(struct upgrade_server_info *server);	// not supported now
#else
bool system_upgrade_start(struct upgrade_server_info *server);
#endif
#endif