app_info.c File Reference

Implementation of app_info table handling .

Copyright (c) 2020 Microchip Technology Inc. and its subsidiaries.

#include <types.h>
#include <app_info.h>
#include <bootStructure.h>
#include <appEntry.h>
#include <eepromLoader.h>
#include <flashLoader.h>
#include "hardwareInit.h"

Macros
#define	APP_INFO_START_ADDRESS   0x0003FE00
#define	IMG_BASE2_START_ADDRESS   0x00022000

Functions
void	app_infoAction (void)
void	clear_updateaction (uint8_t app_index)
void	extReadDataForFlashArea (uint32_t ext_addr, uint32_t int_addr, uint32_t size, uint8_t img_type, uint8_t *key, uint8_t app_index)
bool	img_hdr_validate (void)
uint8_t	MemcalcCrc (uint8_t crc, uint8_t *pcBlock, uint8_t length)
	Read EEPROM index 39 to 46, and populate skip offsets. More...
void	memcopy (uint8_t dst_mem, uint32_t dst_addr, uint8_t src_mem, uint32_t src_addr, uint8_t img_type, uint32_t img_size, uint8_t app_index)
bool	readapp_infotable (void)
void	update_action (void)
void	update_boot_info (void)
void	writeapp_infotable (void)

Variables
uint32_t	alignedPayloadLen
app_info_t	checkapp_info
BootBuffer_t	dataBuffer
bool	isCrcMatched = false
uint32_t	otauFileHdrLen
uint32_t	otauFileId
uint32_t	otauFileLen
uint16_t	otauHdrImgType
uint32_t	payloadLen
uint32_t	payloadOffset
uint16_t	remainderData

#define APP_INFO_START_ADDRESS   0x0003FE00

Referenced by readapp_infotable(), and writeapp_infotable().

#define IMG_BASE2_START_ADDRESS   0x00022000

Referenced by img_hdr_validate().

void app_infoAction

(

void

)

References isCrcMatched, readapp_infotable(), and update_action().

Referenced by Boot_main().

void clear_updateaction

(

uint8_t

app_index

)

References app_table_tag::app_size, app_table_tag::app_start_addr, appStartAddr, app_info_t::appTable, app_table_tag::bootInfo, app_table_tag::dest_addr, BootInfo_t::dest_memtype, app_table_tag::existingImageInfo, flashUpdateAppStartAddr(), app_table_tag::img_size, ExistingImageInfo_t::memtype, TYPE_INTERNAL, BootInfo_t::update_action, and writeapp_infotable().

Referenced by update_action().

void extReadDataForFlashArea	(	uint32_t	ext_addr,
		uint32_t	int_addr,
		uint32_t	size,
		uint8_t	img_type,
		uint8_t *	key,
		uint8_t	app_index
	)

Referenced by memcopy().

bool img_hdr_validate

(

void

)

References _FotaImageHeader::crc8, IMG_BASE2_START_ADDRESS, and MemcalcCrc().

uint8_t MemcalcCrc	(	uint8_t	crc,
		uint8_t *	pcBlock,
		uint8_t	length
	)

Read EEPROM index 39 to 46, and populate skip offsets.

Reads data from external flash and loads to internal flash. Counts crc given memory block. CRC-8. Polynom 0x31 x^8 + x^5 + x^4 + 1.

Parameters

[in]	crc	- first crc state
[in]	pcBlock	- pointer to the memory for crc counting
[in]	length	- memory size

Returns

current area crc

References i.

Referenced by img_hdr_validate(), readapp_infotable(), update_boot_info(), and writeapp_infotable().

void memcopy	(	uint8_t	dst_mem,
		uint32_t	dst_addr,
		uint8_t	src_mem,
		uint32_t	src_addr,
		uint8_t	img_type,
		uint32_t	img_size,
		uint8_t	app_index
	)

References app_table_tag::app_start_addr, app_info_t::appTable, extReadDataForFlashArea(), FLASH_PAGESIZE, hwEraseFlashPage(), hwFillFlashPageBuffer(), hwWriteFlashPage(), app_table_tag::security_key, app_table_tag::skip_pds_end, app_table_tag::skip_pds_start, TYPE_EXTERNAL, and TYPE_INTERNAL.

Referenced by update_action().

bool readapp_infotable

(

void

)

References APP_INFO_START_ADDRESS, app_info_t::crc, MemcalcCrc(), and app_info_t::reservedbytes.

Referenced by app_infoAction(), and writeapp_infotable().

void update_action

(

void

)

References app_info_t::appTable, app_table_tag::bootInfo, clear_updateaction(), app_table_tag::dest_addr, BootInfo_t::dest_memtype, flag, app_table_tag::img_size, BootInfo_t::img_type, lowLevelUnInit(), memcopy(), RESET_FLAG, app_table_tag::src_addr, BootInfo_t::src_memtype, system_reset(), and BootInfo_t::update_action.

Referenced by app_infoAction().

void update_boot_info

(

void

)

References bInfo, BOOT_INFO_START_ADDRESS, boot_info_t::crc, FLASH_PAGESIZE, hwEraseFlashPage(), hwFillFlashPageBuffer(), hwWriteFlashPage(), boot_info_t::majorRev, and MemcalcCrc().

void writeapp_infotable

(

void

)

References APP_INFO_START_ADDRESS, app_info_t::crc, FLASH_PAGESIZE, hwEraseFlashPage(), hwFillFlashPageBuffer(), hwWriteFlashPage(), isCrcMatched, MemcalcCrc(), readapp_infotable(), and app_info_t::reservedbytes.

Referenced by clear_updateaction().

uint32_t alignedPayloadLen

app_info_t checkapp_info

BootBuffer_t dataBuffer

bool isCrcMatched = false

Referenced by app_infoAction(), jumpToApplication(), and writeapp_infotable().

uint32_t otauFileHdrLen

uint32_t otauFileId

uint32_t otauFileLen

uint16_t otauHdrImgType

uint32_t payloadLen

uint32_t payloadOffset

uint16_t remainderData