mirror of https://github.com/rusefi/openblt.git
352 lines
15 KiB
C
352 lines
15 KiB
C
/************************************************************************************//**
|
|
* \file Demo/ARMCM4_STM32F4_Nucleo_F429ZI_Keil/Boot/hooks.c
|
|
* \brief Bootloader callback source file.
|
|
* \ingroup Boot_ARMCM4_STM32F4_Nucleo_F429ZI_Keil
|
|
* \internal
|
|
*----------------------------------------------------------------------------------------
|
|
* C O P Y R I G H T
|
|
*----------------------------------------------------------------------------------------
|
|
* Copyright (c) 2021 by Feaser http://www.feaser.com All rights reserved
|
|
*
|
|
*----------------------------------------------------------------------------------------
|
|
* L I C E N S E
|
|
*----------------------------------------------------------------------------------------
|
|
* This file is part of OpenBLT. OpenBLT 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.
|
|
*
|
|
* OpenBLT 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 have received a copy of the GNU General Public License along with OpenBLT. It
|
|
* should be located in ".\Doc\license.html". If not, contact Feaser to obtain a copy.
|
|
*
|
|
* \endinternal
|
|
****************************************************************************************/
|
|
|
|
/****************************************************************************************
|
|
* Include files
|
|
****************************************************************************************/
|
|
#include "boot.h" /* bootloader generic header */
|
|
#include "led.h" /* LED driver header */
|
|
#include "stm32f4xx.h" /* STM32 registers and drivers */
|
|
|
|
|
|
/****************************************************************************************
|
|
* B A C K D O O R E N T R Y H O O K F U N C T I O N S
|
|
****************************************************************************************/
|
|
|
|
#if (BOOT_BACKDOOR_HOOKS_ENABLE > 0)
|
|
/************************************************************************************//**
|
|
** \brief Initializes the backdoor entry option.
|
|
** \return none.
|
|
**
|
|
****************************************************************************************/
|
|
void BackDoorInitHook(void)
|
|
{
|
|
} /*** end of BackDoorInitHook ***/
|
|
|
|
|
|
/************************************************************************************//**
|
|
** \brief Checks if a backdoor entry is requested.
|
|
** \return BLT_TRUE if the backdoor entry is requested, BLT_FALSE otherwise.
|
|
**
|
|
****************************************************************************************/
|
|
blt_bool BackDoorEntryHook(void)
|
|
{
|
|
/* default implementation always activates the bootloader after a reset */
|
|
return BLT_TRUE;
|
|
} /*** end of BackDoorEntryHook ***/
|
|
#endif /* BOOT_BACKDOOR_HOOKS_ENABLE > 0 */
|
|
|
|
|
|
/****************************************************************************************
|
|
* C P U D R I V E R H O O K F U N C T I O N S
|
|
****************************************************************************************/
|
|
|
|
#if (BOOT_CPU_USER_PROGRAM_START_HOOK > 0)
|
|
/************************************************************************************//**
|
|
** \brief Callback that gets called when the bootloader is about to exit and
|
|
** hand over control to the user program. This is the last moment that
|
|
** some final checking can be performed and if necessary prevent the
|
|
** bootloader from activiting the user program.
|
|
** \return BLT_TRUE if it is okay to start the user program, BLT_FALSE to keep
|
|
** keep the bootloader active.
|
|
**
|
|
****************************************************************************************/
|
|
blt_bool CpuUserProgramStartHook(void)
|
|
{
|
|
/* additional and optional backdoor entry through the pushbutton on the board. to
|
|
* force the bootloader to stay active after reset, keep the pushbutton pressed while
|
|
* resetting the microcontroller.
|
|
*/
|
|
if (HAL_GPIO_ReadPin(GPIOC, GPIO_PIN_13) == GPIO_PIN_SET)
|
|
{
|
|
/* pushbutton pressed, so do not start the user program and keep the
|
|
* bootloader active instead.
|
|
*/
|
|
return BLT_FALSE;
|
|
}
|
|
|
|
/* clean up the LED driver */
|
|
LedBlinkExit();
|
|
|
|
/* okay to start the user program */
|
|
return BLT_TRUE;
|
|
} /*** end of CpuUserProgramStartHook ***/
|
|
#endif /* BOOT_CPU_USER_PROGRAM_START_HOOK > 0 */
|
|
|
|
|
|
/****************************************************************************************
|
|
* W A T C H D O G D R I V E R H O O K F U N C T I O N S
|
|
****************************************************************************************/
|
|
|
|
#if (BOOT_COP_HOOKS_ENABLE > 0)
|
|
/************************************************************************************//**
|
|
** \brief Callback that gets called at the end of the internal COP driver
|
|
** initialization routine. It can be used to configure and enable the
|
|
** watchdog.
|
|
** \return none.
|
|
**
|
|
****************************************************************************************/
|
|
void CopInitHook(void)
|
|
{
|
|
/* this function is called upon initialization. might as well use it to initialize
|
|
* the LED driver. It is kind of a visual watchdog anyways.
|
|
*/
|
|
LedBlinkInit(100);
|
|
} /*** end of CopInitHook ***/
|
|
|
|
|
|
/************************************************************************************//**
|
|
** \brief Callback that gets called at the end of the internal COP driver
|
|
** service routine. This gets called upon initialization and during
|
|
** potential long lasting loops and routine. It can be used to service
|
|
** the watchdog to prevent a watchdog reset.
|
|
** \return none.
|
|
**
|
|
****************************************************************************************/
|
|
void CopServiceHook(void)
|
|
{
|
|
/* run the LED blink task. this is a better place to do it than in the main() program
|
|
* loop. certain operations such as flash erase can take a long time, which would cause
|
|
* a blink interval to be skipped. this function is also called during such operations,
|
|
* so no blink intervals will be skipped when calling the LED blink task here.
|
|
*/
|
|
LedBlinkTask();
|
|
} /*** end of CopServiceHook ***/
|
|
#endif /* BOOT_COP_HOOKS_ENABLE > 0 */
|
|
|
|
|
|
/****************************************************************************************
|
|
* U S B C O M M U N I C A T I O N I N T E R F A C E H O O K F U N C T I O N S
|
|
****************************************************************************************/
|
|
|
|
#if (BOOT_COM_USB_ENABLE > 0)
|
|
/************************************************************************************//**
|
|
** \brief Callback that gets called whenever the USB device should be connected
|
|
** to the USB bus.
|
|
** \param connect BLT_TRUE to connect and BLT_FALSE to disconnect.
|
|
** \return none.
|
|
**
|
|
****************************************************************************************/
|
|
void UsbConnectHook(blt_bool connect)
|
|
{
|
|
/* Note that this is handled automatically by the OTG peripheral. */
|
|
} /*** end of UsbConnect ***/
|
|
|
|
|
|
/************************************************************************************//**
|
|
** \brief Callback that gets called whenever the USB host requests the device
|
|
** to enter a low power mode.
|
|
** \return none.
|
|
**
|
|
****************************************************************************************/
|
|
void UsbEnterLowPowerModeHook(void)
|
|
{
|
|
/* support to enter a low power mode can be implemented here */
|
|
} /*** end of UsbEnterLowPowerMode ***/
|
|
|
|
|
|
/************************************************************************************//**
|
|
** \brief Callback that gets called whenever the USB host requests the device to
|
|
** exit low power mode.
|
|
** \return none.
|
|
**
|
|
****************************************************************************************/
|
|
void UsbLeaveLowPowerModeHook(void)
|
|
{
|
|
/* support to leave a low power mode can be implemented here */
|
|
} /*** end of UsbLeaveLowPowerMode ***/
|
|
#endif /* BOOT_COM_USB_ENABLE > 0 */
|
|
|
|
|
|
/****************************************************************************************
|
|
* N O N - V O L A T I L E M E M O R Y D R I V E R H O O K F U N C T I O N S
|
|
****************************************************************************************/
|
|
|
|
#if (BOOT_NVM_HOOKS_ENABLE > 0)
|
|
/************************************************************************************//**
|
|
** \brief Callback that gets called at the start of the internal NVM driver
|
|
** initialization routine.
|
|
** \return none.
|
|
**
|
|
****************************************************************************************/
|
|
void NvmInitHook(void)
|
|
{
|
|
} /*** end of NvmInitHook ***/
|
|
|
|
|
|
/************************************************************************************//**
|
|
** \brief Callback that gets called at the start of a firmware update to reinitialize
|
|
** the NVM driver.
|
|
** \return none.
|
|
**
|
|
****************************************************************************************/
|
|
void NvmReinitHook(void)
|
|
{
|
|
} /*** end of NvmReinitHook ***/
|
|
|
|
|
|
/************************************************************************************//**
|
|
** \brief Callback that gets called at the start of the NVM driver write
|
|
** routine. It allows additional memory to be operated on. If the address
|
|
** is not within the range of the additional memory, then
|
|
** BLT_NVM_NOT_IN_RANGE must be returned to indicate that the data hasn't
|
|
** been written yet.
|
|
** \param addr Start address.
|
|
** \param len Length in bytes.
|
|
** \param data Pointer to the data buffer.
|
|
** \return BLT_NVM_OKAY if successful, BLT_NVM_NOT_IN_RANGE if the address is
|
|
** not within the supported memory range, or BLT_NVM_ERROR is the write
|
|
** operation failed.
|
|
**
|
|
****************************************************************************************/
|
|
blt_int8u NvmWriteHook(blt_addr addr, blt_int32u len, blt_int8u *data)
|
|
{
|
|
return BLT_NVM_NOT_IN_RANGE;
|
|
} /*** end of NvmWriteHook ***/
|
|
|
|
|
|
/************************************************************************************//**
|
|
** \brief Callback that gets called at the start of the NVM driver erase
|
|
** routine. It allows additional memory to be operated on. If the address
|
|
** is not within the range of the additional memory, then
|
|
** BLT_NVM_NOT_IN_RANGE must be returned to indicate that the memory
|
|
** hasn't been erased yet.
|
|
** \param addr Start address.
|
|
** \param len Length in bytes.
|
|
** \return BLT_NVM_OKAY if successful, BLT_NVM_NOT_IN_RANGE if the address is
|
|
** not within the supported memory range, or BLT_NVM_ERROR is the erase
|
|
** operation failed.
|
|
**
|
|
****************************************************************************************/
|
|
blt_int8u NvmEraseHook(blt_addr addr, blt_int32u len)
|
|
{
|
|
return BLT_NVM_NOT_IN_RANGE;
|
|
} /*** end of NvmEraseHook ***/
|
|
|
|
|
|
/************************************************************************************//**
|
|
** \brief Callback that gets called at the end of the NVM programming session.
|
|
** \return BLT_TRUE is successful, BLT_FALSE otherwise.
|
|
**
|
|
****************************************************************************************/
|
|
blt_bool NvmDoneHook(void)
|
|
{
|
|
return BLT_TRUE;
|
|
} /*** end of NvmDoneHook ***/
|
|
#endif /* BOOT_NVM_HOOKS_ENABLE > 0 */
|
|
|
|
|
|
#if (BOOT_NVM_CHECKSUM_HOOKS_ENABLE > 0)
|
|
/************************************************************************************//**
|
|
** \brief Verifies the checksum, which indicates that a valid user program is
|
|
** present and can be started.
|
|
** \return BLT_TRUE if successful, BLT_FALSE otherwise.
|
|
**
|
|
****************************************************************************************/
|
|
blt_bool NvmVerifyChecksumHook(void)
|
|
{
|
|
return BLT_TRUE;
|
|
} /*** end of NvmVerifyChecksum ***/
|
|
|
|
|
|
/************************************************************************************//**
|
|
** \brief Writes a checksum of the user program to non-volatile memory. This is
|
|
** performed once the entire user program has been programmed. Through
|
|
** the checksum, the bootloader can check if a valid user programming is
|
|
** present and can be started.
|
|
** \return BLT_TRUE if successful, BLT_FALSE otherwise.
|
|
**
|
|
****************************************************************************************/
|
|
blt_bool NvmWriteChecksumHook(void)
|
|
{
|
|
return BLT_TRUE;
|
|
}
|
|
#endif /* BOOT_NVM_CHECKSUM_HOOKS_ENABLE > 0 */
|
|
|
|
|
|
/****************************************************************************************
|
|
* S E E D / K E Y S E C U R I T Y H O O K F U N C T I O N S
|
|
****************************************************************************************/
|
|
|
|
#if (BOOT_XCP_SEED_KEY_ENABLE > 0)
|
|
/************************************************************************************//**
|
|
** \brief Provides a seed to the XCP master that will be used for the key
|
|
** generation when the master attempts to unlock the specified resource.
|
|
** Called by the GET_SEED command.
|
|
** \param resource Resource that the seed if requested for (XCP_RES_XXX).
|
|
** \param seed Pointer to byte buffer wher the seed will be stored.
|
|
** \return Length of the seed in bytes.
|
|
**
|
|
****************************************************************************************/
|
|
blt_int8u XcpGetSeedHook(blt_int8u resource, blt_int8u *seed)
|
|
{
|
|
/* request seed for unlocking ProGraMming resource */
|
|
if ((resource & XCP_RES_PGM) != 0)
|
|
{
|
|
seed[0] = 0x55;
|
|
}
|
|
|
|
/* return seed length */
|
|
return 1;
|
|
} /*** end of XcpGetSeedHook ***/
|
|
|
|
|
|
/************************************************************************************//**
|
|
** \brief Called by the UNLOCK command and checks if the key to unlock the
|
|
** specified resource was correct. If so, then the resource protection
|
|
** will be removed.
|
|
** \param resource resource to unlock (XCP_RES_XXX).
|
|
** \param key pointer to the byte buffer holding the key.
|
|
** \param len length of the key in bytes.
|
|
** \return 1 if the key was correct, 0 otherwise.
|
|
**
|
|
****************************************************************************************/
|
|
blt_int8u XcpVerifyKeyHook(blt_int8u resource, blt_int8u *key, blt_int8u len)
|
|
{
|
|
/* suppress compiler warning for unused parameter */
|
|
len = len;
|
|
|
|
/* the example key algorithm in "libseednkey.dll" works as follows:
|
|
* - PGM will be unlocked if key = seed - 1
|
|
*/
|
|
|
|
/* check key for unlocking ProGraMming resource */
|
|
if ((resource == XCP_RES_PGM) && (key[0] == (0x55-1)))
|
|
{
|
|
/* correct key received for unlocking PGM resource */
|
|
return 1;
|
|
}
|
|
|
|
/* still here so key incorrect */
|
|
return 0;
|
|
} /*** end of XcpVerifyKeyHook ***/
|
|
#endif /* BOOT_XCP_SEED_KEY_ENABLE > 0 */
|
|
|
|
|
|
/*********************************** end of hooks.c ************************************/
|