Driver for the interlock. More...

#include "interlock.h"
#include "HL_gio.h"
#include "database.h"
#include "diag.h"
#include "os.h"

Include dependency graph for interlock.c:

Macros
#define	ILCK_SAVELASTSTATES()

#define	ILCK_CLOSEINTERLOCK() ILCK_SwitchInterlockOn()

#define	ILCK_OPENINTERLOCK() ILCK_SwitchInterlockOff()

Functions
static ILCK_RETURN_TYPE_e	ILCK_CheckStateRequest (ILCK_STATE_REQUEST_e statereq)
	checks the state requests that are made. More...

static ILCK_STATE_REQUEST_e	ILCK_TransferStateRequest (void)
	gets the current state request. More...

static uint8_t	ILCK_CheckReEntrance (void)
	re-entrance check of ILCK state machine trigger function More...

static void	ILCK_CheckFeedback (void)
	checks interlock feedback More...

static ILCK_ELECTRICAL_STATE_TYPE_e	ILCK_GetInterlockSetValue ()
	Gets the latest value (ILCK_SWITCH_ON, ILCK_SWITCH_OFF) the interlock was set to. More...

static STD_RETURN_TYPE_e	ILCK_SetInterlockState (ILCK_ELECTRICAL_STATE_TYPE_e requestedInterlockState)
	Sets the interlock state to its requested state, if the interlock is at that time not in the requested state. It returns STD_OK if the requested state was successfully set or if the interlock was at the requested state before. More...

static STD_RETURN_TYPE_e	ILCK_SwitchInterlockOff (void)
	Switches the interlock off and returns STD_NOT_OK on success. More...

static STD_RETURN_TYPE_e	ILCK_SwitchInterlockOn (void)
	Switches the interlock on and returns STD_OK on success. More...

static void	ILCK_Init_Pins (void)

ILCK_ELECTRICAL_STATE_TYPE_e	ILCK_GetInterlockFeedback (void)
	Reads the feedback pin of the interlock and returns its current value (ILCK_SWITCH_OFF/ILCK_SWITCH_ON) More...

ILCK_STATEMACH_e	ILCK_GetState (void)
	gets the current state. More...

ILCK_RETURN_TYPE_e	ILCK_SetStateRequest (ILCK_STATE_REQUEST_e statereq)
	sets the current state request of the state variable ilck_state. More...

void	ILCK_Trigger (void)
	trigger function for the ILCK driver state machine. More...

void	TEST_ILCK_SetStateStruct (ILCK_STATE_s state)

Variables
static ILCK_STATE_s	ilck_state

Detailed Description

Driver for the interlock.

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

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Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
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.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

We kindly request you to use one or more of the following phrases to refer to foxBMS in your hardware, software, documentation or advertising materials:

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Author: foxBMS Team

Date: 2020-02-24 (date of creation)

Updated: 2020-02-24 (date of last update)

Prefix: ILCK

Definition in file interlock.c.

Macro Definition Documentation

◆ ILCK_CLOSEINTERLOCK

#define ILCK_CLOSEINTERLOCK ( ) ILCK_SwitchInterlockOn()

provides more clear name for ILCK_SwitchInterlockOn()

Definition at line 72 of file interlock.c.

◆ ILCK_OPENINTERLOCK

#define ILCK_OPENINTERLOCK ( ) ILCK_SwitchInterlockOff()

provides more clear name for ILCK_SwitchInterlockOff()

Definition at line 74 of file interlock.c.

◆ ILCK_SAVELASTSTATES

#define ILCK_SAVELASTSTATES ( )

Value:

ilck_state.laststate = ilck_state.state; \

ilck_state.lastsubstate = ilck_state.substate

Saves the last state and the last substate

Definition at line 67 of file interlock.c.

Function Documentation

◆ ILCK_CheckFeedback()

static void ILCK_CheckFeedback ( void )

static

checks interlock feedback

This function is used to check interlock feedback.

Definition at line 206 of file interlock.c.

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◆ ILCK_CheckReEntrance()

static uint8_t ILCK_CheckReEntrance ( void )

static

re-entrance check of ILCK state machine trigger function

This function is not re-entrant and should only be called time- or event-triggered. It increments the triggerentry counter from the state variable ilck_state. It should never be called by two different processes, so if it is the case, triggerentry should never be higher than 0 when this function is called.

Returns: retval 0 if no further instance of the function is active, 0xff else

Definition at line 188 of file interlock.c.

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◆ ILCK_CheckStateRequest()

static ILCK_RETURN_TYPE_e ILCK_CheckStateRequest ( ILCK_STATE_REQUEST_e statereq )

static

checks the state requests that are made.

This function checks the validity of the state requests. The results of the checked is returned immediately.

Parameters

statereq state request to be checked

Returns: result of the state request that was made, taken from ILCK_RETURN_TYPE_e

Definition at line 117 of file interlock.c.

◆ ILCK_GetInterlockFeedback()

ILCK_ELECTRICAL_STATE_TYPE_e ILCK_GetInterlockFeedback ( void )

Reads the feedback pin of the interlock and returns its current value (ILCK_SWITCH_OFF/ILCK_SWITCH_ON)

Returns: measuredInterlockState (type: ILCK_ELECTRICAL_STATE_TYPE_e)

Definition at line 287 of file interlock.c.

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◆ ILCK_GetInterlockSetValue()

static ILCK_ELECTRICAL_STATE_TYPE_e ILCK_GetInterlockSetValue ( void )

static

Gets the latest value (ILCK_SWITCH_ON, ILCK_SWITCH_OFF) the interlock was set to.

Meaning of the return value:

ILCK_SWITCH_OFF means interlock was set to be opened
ILCK_SWITCH_ON means interlock was set to be closed

Returns: setInformation (type: ILCK_ELECTRICAL_STATE_TYPE_e)

Definition at line 230 of file interlock.c.

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◆ ILCK_GetState()

ILCK_STATEMACH_e ILCK_GetState ( void )

gets the current state.

This function is used in the functioning of the ILCK state machine.

Returns: current state, taken from ILCK_STATEMACH_e

Definition at line 302 of file interlock.c.

◆ ILCK_Init_Pins()

static void ILCK_Init_Pins ( void )

static

initializes the pins of the interlock to default state

Definition at line 281 of file interlock.c.

◆ ILCK_SetInterlockState()

static STD_RETURN_TYPE_e ILCK_SetInterlockState ( ILCK_ELECTRICAL_STATE_TYPE_e requestedInterlockState )

static

Sets the interlock state to its requested state, if the interlock is at that time not in the requested state. It returns STD_OK if the requested state was successfully set or if the interlock was at the requested state before.

Parameters

requestedInterlockState open or close interlock

Returns: retVal STD_OK if no error, STD_NOT_OK otherwise

Definition at line 244 of file interlock.c.

◆ ILCK_SetStateRequest()

ILCK_RETURN_TYPE_e ILCK_SetStateRequest ( ILCK_STATE_REQUEST_e statereq )

sets the current state request of the state variable ilck_state.

This function is used to make a state request to the state machine,e.g, start voltage measurement, read result of voltage measurement, re-initialization It calls ILCK_CheckStateRequest() to check if the request is valid. The state request is rejected if is not valid. The result of the check is returned immediately, so that the requester can act in case it made a non-valid state request.

Parameters

statereq state request to set

Returns: retVal current state request, taken from ILCK_STATE_REQUEST_e

Definition at line 306 of file interlock.c.

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◆ ILCK_SwitchInterlockOff()

static STD_RETURN_TYPE_e ILCK_SwitchInterlockOff ( void )

static

Switches the interlock off and returns STD_NOT_OK on success.

Returns: retVal (type: STD_RETURN_TYPE_e)

Definition at line 264 of file interlock.c.

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◆ ILCK_SwitchInterlockOn()

static STD_RETURN_TYPE_e ILCK_SwitchInterlockOn ( void )

static

Switches the interlock on and returns STD_OK on success.

Returns: retVal (type: STD_RETURN_TYPE_e)

Definition at line 274 of file interlock.c.

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◆ ILCK_TransferStateRequest()

static ILCK_STATE_REQUEST_e ILCK_TransferStateRequest ( void )

static

gets the current state request.

This function is used in the functioning of the ILCK state machine. It is kept as comment for compatibility.

Returns: retval current state request, taken from ILCK_STATE_REQUEST_e

transfers the current state request to the state machine.

This function takes the current state request from ilck_state and transfers it to the state machine. It resets the value from ilck_state to ILCK_STATE_NO_REQUEST

Returns: retVal current state request, taken from ILCK_STATE_REQUEST_e

Definition at line 167 of file interlock.c.

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◆ ILCK_Trigger()

void ILCK_Trigger ( void )

trigger function for the ILCK driver state machine.

This function contains the sequence of events in the ILCK state machine. It must be called time-triggered, every 1ms.

Definition at line 320 of file interlock.c.

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◆ TEST_ILCK_SetStateStruct()

void TEST_ILCK_SetStateStruct ( ILCK_STATE_s state )

Definition at line 432 of file interlock.c.

Variable Documentation

◆ ilck_state

ILCK_STATE_s ilck_state

static

Initial value:

= {
    .timer             = 0,
    .statereq          = ILCK_STATE_NO_REQUEST,
    .state             = ILCK_STATEMACH_UNINITIALIZED,
    .substate          = ILCK_ENTRY,
    .laststate         = ILCK_STATEMACH_UNINITIALIZED,
    .lastsubstate      = ILCK_ENTRY,
    .triggerentry      = 0,
    .ErrRequestCounter = 0,
    .counter           = 0,
}

contains the state of the contactor state machine

Definition at line 80 of file interlock.c.

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ ILCK_CLOSEINTERLOCK

◆ ILCK_OPENINTERLOCK

◆ ILCK_SAVELASTSTATES

Function Documentation

◆ ILCK_CheckFeedback()

◆ ILCK_CheckReEntrance()

◆ ILCK_CheckStateRequest()

◆ ILCK_GetInterlockFeedback()

◆ ILCK_GetInterlockSetValue()

◆ ILCK_GetState()

◆ ILCK_Init_Pins()

◆ ILCK_SetInterlockState()

◆ ILCK_SetStateRequest()

◆ ILCK_SwitchInterlockOff()

◆ ILCK_SwitchInterlockOn()

◆ ILCK_TransferStateRequest()

◆ ILCK_Trigger()

◆ TEST_ILCK_SetStateStruct()

Variable Documentation

◆ ilck_state