diag.c File Reference

Diagnosis driver implementation. More...

#include "diag.h"
#include "com.h"
#include "os.h"
#include "rtc.h"
#include "stdio.h"

Include dependency graph for diag.c:

Functions
int	_write (int fd, char *ptr, int len)
static void	DIAG_Reset (void)
	DIAG_Reset resets/initializes all needed structures/buffers. More...
static uint8_t	DIAG_EntryWrite (uint8_t eventID, DIAG_EVENT_e event, uint32_t item_nr)
	DIAG_EntryWrite adds an error entry. More...
STD_RETURN_TYPE_e	DIAG_Init (DIAG_DEV_s *diag_dev_pointer, STD_RETURN_TYPE_e bkpramValid)
	DIAG_Init initializes all needed structures/buffers. More...
void	DIAG_PrintErrors (void)
	DIAG_PrintErrors prints contents of the error buffer on user request. More...
DIAG_RETURNTYPE_e	DIAG_Handler (DIAG_CH_ID_e diag_ch_id, DIAG_EVENT_e event, uint32_t item_nr)
	DIAG_Handler provides generic error handling, based on diagnosis group.This function calls the handler functions depending on the diagnosis group of call. It needs to get called in every function which wants to apply some kind of diagnosis handling. According to its return value further treatment is either left to the calling module itself, or can be done in the callback function defined in diag_cfg.c. More...
STD_RETURN_TYPE_e	DIAG_checkEvent (STD_RETURN_TYPE_e cond, DIAG_CH_ID_e diag_ch_id, uint32_t item_nr)
	DIAG_checkEvent provides a simple interface to check an event for E_OK. More...
void	DIAG_SysMon (void)
	overall system monitoring More...
void	DIAG_SysMonNotify (DIAG_SYSMON_MODULE_ID_e module_id, uint32_t state)
	DIAG_SysMonNotify has to be called in every function using the system monitoring. More...
void	DIAG_configASSERT (void)
	trap of configuration errors derived by FreeRTOS configASSERT More...

Variables
static DIAG_s	diag
static DIAG_DEV_s *	diag_devptr
static uint32_t	diagsysmonTimestamp = 0
static uint8_t	diag_locked = 0
DIAG_SYSMON_NOTIFICATION_s	diag_sysmon [DIAG_SYSMON_MODULE_ID_MAX]
DIAG_SYSMON_NOTIFICATION_s	diag_sysmon_last [DIAG_SYSMON_MODULE_ID_MAX]
uint32_t	diag_sysmon_cnt [DIAG_SYSMON_MODULE_ID_MAX]
DIAG_ERROR_ENTRY_s MEM_BKP_SRAM	diag_memory [DIAG_FAIL_ENTRY_LENGTH]
DIAG_ERROR_ENTRY_s MEM_BKP_SRAM *	diag_entry_wrptr
DIAG_ERROR_ENTRY_s MEM_BKP_SRAM *	diag_entry_rdptr
DIAG_CONTACTOR_ERROR_ENTRY_s MEM_BKP_SRAM	diagContactorErrorMemory [DIAG_FAIL_ENTRY_CONTACTOR_LENGTH]
DIAG_CONTACTOR_ERROR_ENTRY_s MEM_BKP_SRAM *	diagContactorError_entry_wrptr
DIAG_CONTACTOR_ERROR_ENTRY_s MEM_BKP_SRAM *	diagContactorError_entry_rdptr
DIAG_FAILURECODE_s	diag_fc

Detailed Description

Diagnosis driver implementation.

Copyright

© 2010 - 2021, Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. All rights reserved.

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3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

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Author

foxBMS Team

Date

09.11.2015 (date of creation)

Module-prefix DIAG

This diagnose module is responsible for error handling and reporting. Reported errors are logged into the global database and can be reviewed on user request.

Function Documentation

_write()

int _write	(	int	fd,
		char *	ptr,
		int	len
	)

DIAG_checkEvent()

STD_RETURN_TYPE_e DIAG_checkEvent	(	STD_RETURN_TYPE_e	cond,
		DIAG_CH_ID_e	diag_ch_id,
		uint32_t	item_nr
	)

DIAG_checkEvent provides a simple interface to check an event for E_OK.

DIAG_checkEvent is a wrapper function for DIAG_Handler. In simple cases where a return value that is not E_OK (or a 0 casted to E_OK) should increase the error counter in a diagnosis channel, this function should be used instead of directly calling the DIAG_Handler().

Parameters

cond	condition
diag_ch_id	event ID of the event that has occurred
item_nr	item nr of event, to distinguish between different calling locations of the event

Returns

E_OK if ok, E_NOK if not ok

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DIAG_configASSERT()

void DIAG_configASSERT

(

void

)

trap of configuration errors derived by FreeRTOS configASSERT

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DIAG_EntryWrite()

static uint8_t DIAG_EntryWrite ( uint8_t  eventID, DIAG_EVENT_e  event, uint32_t  item_nr  )

static

DIAG_EntryWrite adds an error entry.

This function adds an entry to the error buffer. It provides some functionality to prevent duplicates from being logged. Multiple occurring error doesn't get logged anymore after they reached a pre-defined error count.

Parameters

eventID	ID of entry
event	OK, NOK or RESET
item_nr	item number of event

Returns

0xFF if event is logged, otherwise 0

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DIAG_Init()

STD_RETURN_TYPE_e DIAG_Init	(	DIAG_DEV_s *	diag_dev_pointer,
		STD_RETURN_TYPE_e	bkpramValid
	)

DIAG_Init initializes all needed structures/buffers.

This function provides initialization of the diagnose module. In case of miss behaviour it calls Reset and adds an entry into database to ensure data validity/report back malfunction

Parameters

diag_dev_pointer

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DIAG_PrintErrors()

void DIAG_PrintErrors

(

void

)

DIAG_PrintErrors prints contents of the error buffer on user request.

This function prints out complete error buffer using the UART interface.

DIAG_Reset()

static void DIAG_Reset ( void  )

static

DIAG_Reset resets/initializes all needed structures/buffers.

This function gets called during initialization of the diagnose module. It clears memory and counters used by diag later on.

DIAG_SysMon()

void DIAG_SysMon

(

void

)

overall system monitoring

checks notifications (state and timestamps) of all system-relevant tasks or functions all checks should be customized corresponding to its timing and state requirements

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DIAG_SysMonNotify()

void DIAG_SysMonNotify	(	DIAG_SYSMON_MODULE_ID_e	module_id,
		uint32_t	state
	)

DIAG_SysMonNotify has to be called in every function using the system monitoring.

Parameters

module_id	module id to notify system monitoring
state	state of module

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Variable Documentation

diag

DIAG_s diag

static

diag_devptr

DIAG_DEV_s* diag_devptr

static

diag_entry_rdptr

DIAG_ERROR_ENTRY_s MEM_BKP_SRAM* diag_entry_rdptr

diag_entry_wrptr

DIAG_ERROR_ENTRY_s MEM_BKP_SRAM* diag_entry_wrptr

diag_fc

DIAG_FAILURECODE_s diag_fc

diag_locked

uint8_t diag_locked = 0

static

diag_memory

DIAG_ERROR_ENTRY_s MEM_BKP_SRAM diag_memory[DIAG_FAIL_ENTRY_LENGTH]

diag_sysmon

DIAG_SYSMON_NOTIFICATION_s diag_sysmon[DIAG_SYSMON_MODULE_ID_MAX]

diag_sysmon_cnt

uint32_t diag_sysmon_cnt[DIAG_SYSMON_MODULE_ID_MAX]

diag_sysmon_last

DIAG_SYSMON_NOTIFICATION_s diag_sysmon_last[DIAG_SYSMON_MODULE_ID_MAX]

diagContactorError_entry_rdptr

DIAG_CONTACTOR_ERROR_ENTRY_s MEM_BKP_SRAM* diagContactorError_entry_rdptr

diagContactorError_entry_wrptr

DIAG_CONTACTOR_ERROR_ENTRY_s MEM_BKP_SRAM* diagContactorError_entry_wrptr

diagContactorErrorMemory

DIAG_CONTACTOR_ERROR_ENTRY_s MEM_BKP_SRAM diagContactorErrorMemory[DIAG_FAIL_ENTRY_CONTACTOR_LENGTH]

diagsysmonTimestamp

uint32_t diagsysmonTimestamp = 0

static