/*----------------------------------------------------------------------------
 * Copyright (c) Huawei Technologies Co., Ltd. 2013-2020. All rights reserved.
 * Description: Flash Adaptor
 * Author: Huawei LiteOS Team
 * Create: 2013-01-01
 * 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 copyright holder 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 COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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 "flash_adaptor.h"
#include "hal_spi_flash.h"
#include <string.h>
#include <stdlib.h>
#include "osdepends/atiny_osdep.h"
#include <board.h>
#include "common.h"

#define FLASH_BLOCK_SIZE 0x1000
#define FLASH_BLOCK_MASK 0xfff

int FlashAdaptorWrite(uint32_t offset, const uint8_t *buffer, uint32_t len)
{
    int ret = ERR;
    uint8_t *block_buff;

    if ((NULL == buffer) || (0 == len) || (len > FLASH_BLOCK_SIZE)
        || ((offset & FLASH_BLOCK_MASK))) {
        HAL_OTA_LOG("invalid param len %ld, offset %ld", len, offset);
        return ERR;
    }

    if (len == FLASH_BLOCK_SIZE) {
        ret = hal_spi_flash_erase_write(buffer, FLASH_BLOCK_SIZE, offset);
        if(ret != OK) {
           HAL_OTA_LOG("hal_ota_write_flash fail offset %lu, len %u", offset, FLASH_BLOCK_SIZE);
        }
        return ret;
    }

    block_buff = atiny_malloc(FLASH_BLOCK_SIZE);
    if (NULL == block_buff) {
        HAL_OTA_LOG("atiny_malloc fail");
        return ERR;
    }

    ret = hal_spi_flash_read(block_buff + len, FLASH_BLOCK_SIZE - len, offset + len);
    if (ret != OK) {
        HAL_OTA_LOG("hal_spi_flash_read fail offset %lu, len %lu", offset + len, FLASH_BLOCK_SIZE - len);
        goto EXIT;
    }

    (void)memcpy(block_buff, buffer, len);
    ret = hal_spi_flash_erase_write(block_buff, FLASH_BLOCK_SIZE, offset);
    if (ret != OK) {
        HAL_OTA_LOG("hal_ota_write_flash fail offset %lu, len %u", offset, FLASH_BLOCK_SIZE);
    }

EXIT:
    atiny_free(block_buff);
    return ret;
}

void FlashAdaptorInit(void)
{
    hal_spi_flash_config();
}

int FlashAdaptorWriteMqttInfo(const void *buffer, uint32_t len)
{
    if (len > MQTT_INFO_SIZE) {
        HAL_OTA_LOG("err offset len %lu",  len);
        return ERR;
    }

    return FlashAdaptorWrite(MQTT_INFO_ADDR, (const uint8_t *)buffer, len);
}

int FlashAdaptorReadMqttInfo(void *buffer, uint32_t len)
{
    if (len > MQTT_INFO_SIZE) {
        HAL_OTA_LOG("err offset len %lu",  len);
        return ERR;
    }
    
    return hal_spi_flash_read(buffer, len, MQTT_INFO_ADDR);
}