pios_bl_helper.c

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/*
 * 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/>
 */

/* Project Includes */
#include "pios.h"
#if defined(PIOS_INCLUDE_BL_HELPER)
#include <pios_board_info.h>
#include "stm32f10x_flash.h"

uint8_t *PIOS_BL_HELPER_FLASH_If_Read(uint32_t SectorAddress)
{
        return (uint8_t *) (SectorAddress);
}

#if defined(PIOS_INCLUDE_BL_HELPER_WRITE_SUPPORT)
uint8_t PIOS_BL_HELPER_FLASH_Ini()
{
        FLASH_Unlock();
        return 1;
}

uint8_t PIOS_BL_HELPER_FLASH_Start()
{
        const struct pios_board_info * bdinfo = &pios_board_info_blob;
        uint32_t pageAdress = bdinfo->fw_base;
        uint8_t fail = false;
        while ((pageAdress < (bdinfo->fw_base + bdinfo->fw_size + bdinfo->desc_size))
               && (fail == false)) {
                for (int retry = 0; retry < MAX_DEL_RETRYS; ++retry) {
                        if (FLASH_ErasePage(pageAdress) == FLASH_COMPLETE) {
                                fail = false;
                                break;
                        } else {
                                fail = true;
                        }
                }

#ifdef STM32F10X_HD
                pageAdress += 2048;
#elif defined (STM32F10X_MD)
                pageAdress += 1024;
#endif
        }

        return (fail == true) ? 0 : 1;
}
#endif

uint32_t PIOS_BL_HELPER_CRC_Memory_Calc()
{
        const struct pios_board_info * bdinfo = &pios_board_info_blob;

        PIOS_BL_HELPER_CRC_Ini();
        CRC_ResetDR();
        CRC_CalcBlockCRC((uint32_t *) bdinfo->fw_base, (bdinfo->fw_size) >> 2);
        return CRC_GetCRC();
}

void PIOS_BL_HELPER_FLASH_Read_Description(uint8_t * array, uint8_t size)
{
        const struct pios_board_info * bdinfo = &pios_board_info_blob;
        uint8_t x = 0;
        if (size > bdinfo->desc_size) size = bdinfo->desc_size;
        for (uint32_t i = bdinfo->fw_base + bdinfo->fw_size; i < bdinfo->fw_base + bdinfo->fw_size + size; ++i) {
                array[x] = *PIOS_BL_HELPER_FLASH_If_Read(i);
                ++x;
        }
}

void PIOS_BL_HELPER_CRC_Ini()
{
        RCC_AHBPeriphClockCmd(RCC_AHBPeriph_CRC, ENABLE);
}
#endif