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LibrePilot/flight/pios/stm32f10x/pios_bl_helper.c

132 lines
3.7 KiB
C

/**
******************************************************************************
* @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
*/
#include <pios.h>
#ifdef PIOS_INCLUDE_BL_HELPER
#include <pios_board_info.h>
#include <stm32f10x_flash.h>
#include <stdbool.h>
uint8_t *PIOS_BL_HELPER_FLASH_If_Read(uint32_t SectorAddress)
{
return (uint8_t *)(SectorAddress);
}
#if defined(PIOS_INCLUDE_BL_HELPER_WRITE_SUPPORT)
static bool erase_flash(uint32_t startAddress, uint32_t endAddress);
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 startAddress = bdinfo->fw_base;
uint32_t endAddress = bdinfo->fw_base + bdinfo->fw_size + bdinfo->desc_size;
bool success = erase_flash(startAddress, endAddress);
return (success) ? 1 : 0;
}
uint8_t PIOS_BL_HELPER_FLASH_Erase_Bootloader()
{
/// Bootloader memory space erase
uint32_t startAddress = BL_BANK_BASE;
uint32_t endAddress = BL_BANK_BASE + BL_BANK_SIZE;
bool success = erase_flash(startAddress, endAddress);
return (success) ? 1 : 0;
}
static bool erase_flash(uint32_t startAddress, uint32_t endAddress)
{
uint32_t pageAddress = startAddress;
uint8_t fail = false;
while ((pageAddress < endAddress) && (fail == false)) {
for (int retry = 0; retry < MAX_DEL_RETRYS; ++retry) {
if (FLASH_ErasePage(pageAddress) == FLASH_COMPLETE) {
fail = false;
break;
} else {
fail = true;
}
}
#ifdef STM32F10X_HD
pageAddress += 2048;
#elif defined(STM32F10X_MD)
pageAddress += 1024;
#endif
}
return !fail;
}
#endif /* if defined(PIOS_INCLUDE_BL_HELPER_WRITE_SUPPORT) */
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 /* PIOS_INCLUDE_BL_HELPER */