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LibrePilot/flight/PiOS/Common/pios_bl_helper.c

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/**
******************************************************************************
* @addtogroup PIOS PIOS Core hardware abstraction layer
* @{
* @addtogroup PIOS_BOOTLOADER Functions
* @brief HAL code to interface to the OpenPilot AHRS module
* @{
*
* @file pios_bl_helper.c
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
* @brief Bootloader Helper Functions
* @see The GNU Public License (GPL) Version 3
*
*****************************************************************************/
/*
* 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, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* 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 == TRUE)) {
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