diag.c File Reference

Diagnosis driver implementation. More...

#include "diag.h"
#include "os.h"

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Functions
static void	DIAG_Reset (void)
	DIAG_Reset resetsall needed structures. More...
static uint8_t	DIAG_EntryWrite (uint8_t eventID, DIAG_EVENT_e event, uint32_t data)
	DIAG_EntryWrite adds an error entry. More...
STD_RETURN_TYPE_e	DIAG_Initialize (DIAG_DEV_s *diag_dev_pointer)
	DIAG_Init initializes all needed structures/buffers. More...
void	DIAG_PrintErrors (void)
	Prints contents of the error buffer on user request. More...
DIAG_RETURNTYPE_e	DIAG_Handler (DIAG_ID_e diag_id, DIAG_EVENT_e event, DIAG_IMPACT_LEVEL_e impact, uint32_t data)
	DIAG_Handler provides generic error handling, based on diagnosis group. More...
STD_RETURN_TYPE_e	DIAG_CheckEvent (STD_RETURN_TYPE_e cond, DIAG_ID_e diag_id, DIAG_IMPACT_LEVEL_e impact, uint32_t data)
	DIAG_CheckEvent provides a simple interface to check an event for STD_OK. More...

Variables
static DIAG_s	diag
static DIAG_DEV_s *	diag_devptr
static uint8_t	diag_locked = 0

Detailed Description

Diagnosis driver implementation.

Copyright

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

SPDX-License-Identifier: BSD-3-Clause

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Author

foxBMS Team

Date

2019-11-28 (date of creation)

Updated

2020-01-17 (date of last update)

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.

Definition in file diag.c.

Function Documentation

DIAG_CheckEvent()

STD_RETURN_TYPE_e DIAG_CheckEvent	(	STD_RETURN_TYPE_e	cond,
		DIAG_ID_e	diag_id,
		DIAG_IMPACT_LEVEL_e	impact,
		uint32_t	data
	)

DIAG_CheckEvent provides a simple interface to check an event for STD_OK.

DIAG_CheckEvent is a wrapper function for DIAG_Handler(). In simple cases where a return value that is not STD_OK (or a 0 casted to STD_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_id	event ID of the event that has occurred
impact	DIAG_IMPACT_LEVEL_e of DIAG_ID_e
data	individual information for DIAG_ID_e e.g. string number,..

Returns

STD_OK if ok, STD_NOT_OK if not ok

Definition at line 326 of file diag.c.

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DIAG_EntryWrite()

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

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
data	individual information for DIAG_ID_e e.g. string number,..

Returns

0xFF if event is logged, otherwise 0

Definition at line 164 of file diag.c.

DIAG_Handler()

DIAG_RETURNTYPE_e DIAG_Handler	(	DIAG_ID_e	diag_id,
		DIAG_EVENT_e	event,
		DIAG_IMPACT_LEVEL_e	impact,
		uint32_t	data
	)

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

Parameters

diag_id	DIAG_ID_e of the event that has occurred
event	event that occurred (OK, NOK, RESET)
impact	DIAG_IMPACT_LEVEL_e of DIAG_ID_e
data	individual information for DIAG_ID_e e.g. string number,..

Returns

DIAG_HANDLER_RETURN_UNKNOWN if invalid DIAG_EVENT_e, otherwise return value of DIAG_RETURNTYPE_e

Definition at line 199 of file diag.c.

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DIAG_Initialize()

STD_RETURN_TYPE_e DIAG_Initialize

(

DIAG_DEV_s *

diag_dev_pointer

)

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

Returns

STD_OK if ok, STD_NOT_OK if not ok

Definition at line 111 of file diag.c.

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DIAG_PrintErrors()

void DIAG_PrintErrors

(

void

)

Prints contents of the error buffer on user request.

Definition at line 161 of file diag.c.

DIAG_Reset()

static void DIAG_Reset ( void  )

static

DIAG_Reset resetsall needed structures.

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

Definition at line 99 of file diag.c.

Variable Documentation

diag

DIAG_s diag

static

state-variable of the diag module

Definition at line 66 of file diag.c.

diag_devptr

DIAG_DEV_s* diag_devptr

static

pointer to the device configuration of the diag module

Definition at line 69 of file diag.c.

diag_locked

uint8_t diag_locked = 0

static

superb implementation of a mutex for the diag module

Definition at line 72 of file diag.c.