mccibootloaderboard_stm32h7b3i_dk_request.c

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/*
 
Module: mccibootloaderboard_stm32h7b3i_dk_request.c
 
Function:
        Request variables and accessors for bootloader for STM32H7B3I_DK boards
 
Copyright and License:
        This file copyright (C) 2021 by
 
                MCCI Corporation
                3520 Krums Corners Road
                Ithaca, NY  14850
 
        See accompanying LICENSE file for copyright and license information.
 
Author:
        ChaeHee Won, MCCI Corporation   June 2021
 
*/
 
#include "mcci_bootloader_board_stm32h7b3i_dk.h"
#include "mcci_stm32h7xx.h"
␌
/****************************************************************************\
|
|       Manifest constants & typedefs.
|
\****************************************************************************/
 
 
/****************************************************************************\
|
|       Read-only data.
|
\****************************************************************************/
 
 
/****************************************************************************\
|
|       Variables.
|
\****************************************************************************/
 
static
McciBootloaderBoard_Stm32h7b3iDk_Request_t
sg_McciBootloaderBoard_Stm32h7b3iDk_RequestNo =
        {
        .MagicBegin = MCCI_BOOTLOADER_STM32H7B3I_DK_REQUEST_MAGIC_BEGIN,
        .fUpdateRequest = 0,
        .MagicEnd = MCCI_BOOTLOADER_STM32H7B3I_DK_REQUEST_MAGIC_END
        };
 
static
McciBootloaderBoard_Stm32h7b3iDk_Request_t
sg_McciBootloaderBoard_Stm32h7b3iDk_RequestYes =
        {
        .MagicBegin = MCCI_BOOTLOADER_STM32H7B3I_DK_REQUEST_MAGIC_BEGIN,
        .fUpdateRequest = MCCI_BOOTLOADER_STM32H7B3I_DK_REQUEST_UPDATE_REQUEST,
        .MagicEnd = MCCI_BOOTLOADER_STM32H7B3I_DK_REQUEST_MAGIC_END
        };
␌
McciBootloaderBoard_Stm32h7b3iDk_Request_t *
McciBootloaderBoard_Stm32h7b3iDk_getRequestPointer(void)
        {
        McciBootloaderBoard_Stm32h7b3iDk_Request_t *pRequest;
 
        /* convert to a pointer to the request */
        pRequest = (McciBootloaderBoard_Stm32h7b3iDk_Request_t *)
                        &gk_McciBootloaderBoard_Stm32h7b3iDk_UpdateRequestBase[0];
        if (pRequest->MagicBegin == MCCI_BOOTLOADER_STM32H7B3I_DK_REQUEST_MAGIC_BEGIN &&
            pRequest->MagicEnd == MCCI_BOOTLOADER_STM32H7B3I_DK_REQUEST_MAGIC_END)
                {
                return pRequest;
                }
        else
                {
                return &sg_McciBootloaderBoard_Stm32h7b3iDk_RequestNo;
                }
        }
 
bool
McciBootloaderBoard_Stm32h7b3iDk_getUpdate(void)
        {
        const McciBootloaderBoard_Stm32h7b3iDk_Request_t * const
                pRequest = McciBootloaderBoard_Stm32h7b3iDk_getRequestPointer();
 
        if (pRequest->fUpdateRequest == MCCI_BOOTLOADER_STM32H7B3I_DK_REQUEST_UPDATE_REQUEST)
                return true;
        else
                return false;
        }
 
void
McciBootloaderBoard_Stm32h7b3iDk_setUpdate(bool fRequest)
        {
        const McciBootloaderBoard_Stm32h7b3iDk_Request_t *pRequest;
        uint32_t value;
        volatile const void *pRequestBase;
 
        pRequest = McciBootloaderBoard_Stm32h7b3iDk_getRequestPointer();
        value = fRequest ? MCCI_BOOTLOADER_STM32H7B3I_DK_REQUEST_UPDATE_REQUEST : 0;
 
        // if it's already set to the right value, just return.
        if (pRequest->fUpdateRequest == value)
                return;
 
        pRequestBase = &gk_McciBootloaderBoard_Stm32h7b3iDk_UpdateRequestBase[0];
        McciBootloader_Stm32h7_systemFlashErase(pRequestBase, sizeof(*pRequest));
        if (fRequest)
                {
                pRequest = &sg_McciBootloaderBoard_Stm32h7b3iDk_RequestYes;
                McciBootloader_Stm32h7_systemFlashWrite(
                        pRequestBase,
                        pRequest,
                        sizeof(*pRequest)
                        );
                }
        }
 
/**** end of mccibootloaderboard_stm32h7b3i_dk_request.c ****/