cangw.cpp File Reference

Handling functions for CAN Gateway. More...

#include <cstring>
#include <pthread.h>
#include <unistd.h>
#include <new>
#include <hdj2534.h>
#include "cangw.hpp"

Go to the source code of this file.

Classes
struct	GwParam_s
	Definition of structure with CAN Gateway's parameters. More...
struct	ThreadParam_s
	Definition of structure with thread parameters. More...

Functions
static ErrCode_e	canGwOpen ()
	Function opens CAN Gateway. More...
static ErrCode_e	canGwClose ()
	Function closes CAN Gateway. More...
static ErrCode_e	canGwConnectChannels ()
	Function connects CAN Gateway's channels. More...
static ErrCode_e	canGwDisconnectChannels ()
	Function disconnects CAN Gateway's channels. More...
static ErrCode_e	canGwSetFilters ()
	Function sets CAN Gateway's message filters. More...
static ErrCode_e	canGwInitRcvThread (Channel_e channel)
	Function initializes receiving thread for given physical channel. More...
static ErrCode_e	canGwUninitRcvThread (Channel_e channel)
	Function uninitializes receiving thread for given physical channel. More...
static void *	canGwRcvThreadFunc (void *params)
	Function handles CAN Gateway's receiving threads. More...

Variables
static GwParam_s	gwParam = {0, 0, 0, 0, 0, 0, 0, false, false}
	Structure with CAN device parameters.
static ThreadParam_s	threadParamCh1
	Structure with thread parameters for Channel1.
static ThreadParam_s	threadParamCh2
	Structure with thread parameters for Channel2.
static pthread_mutex_t	gwMutex = PTHREAD_MUTEX_INITIALIZER
	Mutex for CAN Gateway's API.
static RcvCb_t	rcvCbCh1
	Receive callback function for Channel 1.
static RcvCb_t	rcvCbCh2
	Receive callback function for Channel 2.
static J2534::PASSTHRU_MSG *	rxPassThruMsgCh1 = NULL
	Pointer to receive buffer with PASSTHRU messages for Channel 1.
static J2534::PASSTHRU_MSG *	rxPassThruMsgCh2 = NULL
	Pointer to receive buffer with PASSTHRU messages for Channel 2.
static const unsigned int	MAX_RX_MSGS = 20
	Maximum number of messages to receive.
static unsigned long	TX_TIMEOUT = 100
	Timeout for PassThruWriteMsgs() function.
static const unsigned long	BAUD_VAL_125KBPS = 125000
	Value for baud rate = 125 kbps.
static const unsigned long	BAUD_VAL_250KBPS = 250000
	Value for baud rate = 250 kbps.
static const unsigned long	BAUD_VAL_500KBPS = 500000
	Value for baud rate = 500 kbps.
static const unsigned long	BAUD_VAL_1MBPS = 1000000
	Value for baud rate = 1 Mbps.

Detailed Description

Handling functions for CAN Gateway.

Date

2014-03-07

Copyright

Hatteland Display AS

Definition in file cangw.cpp.

Function Documentation

static ErrCode_e canGwOpen ( )

static

Function opens CAN Gateway.

Returns

CAN_GW_OK No error

CAN_GW_ERR An error occurred

Definition at line 304 of file cangw.cpp.

References canGw::CAN_GW_ERR, canGw::CAN_GW_OK, canGwConnectChannels(), canGwSetFilters(), gwParam, and GwParam_s::idDevice.

Referenced by canGw::init().

static ErrCode_e canGwClose ( )

static

Function closes CAN Gateway.

Returns

CAN_GW_OK No error

CAN_GW_ERR An error occurred

Definition at line 325 of file cangw.cpp.

References canGw::CAN_GW_ERR, canGw::CAN_GW_OK, canGwDisconnectChannels(), gwParam, and GwParam_s::idDevice.

Referenced by canGw::uninit().

static ErrCode_e canGwConnectChannels ( )

static

Function connects CAN Gateway's channels.

Returns

CAN_GW_OK No error

CAN_GW_ERR An error occurred

Definition at line 345 of file cangw.cpp.

References GwParam_s::activeCh1, GwParam_s::activeCh2, GwParam_s::baudCh1, GwParam_s::baudCh2, canGw::CAN_GW_ERR, canGw::CAN_GW_OK, gwParam, GwParam_s::idCh1, GwParam_s::idCh2, and GwParam_s::idDevice.

Referenced by canGwOpen().

static ErrCode_e canGwDisconnectChannels ( )

static

Function disconnects CAN Gateway's channels.

Returns

CAN_GW_OK No error

CAN_GW_ERR An error occurred

Definition at line 389 of file cangw.cpp.

References GwParam_s::activeCh1, GwParam_s::activeCh2, canGw::CAN_GW_ERR, canGw::CAN_GW_OK, gwParam, GwParam_s::idCh1, and GwParam_s::idCh2.

Referenced by canGwClose().

static ErrCode_e canGwSetFilters ( )

static

Function sets CAN Gateway's message filters.

Returns

CAN_GW_OK No error

CAN_GW_ERR An error occurred

Definition at line 428 of file cangw.cpp.

References canGw::CAN_GW_ERR, canGw::CAN_GW_OK, gwParam, GwParam_s::idCh1, GwParam_s::idCh2, GwParam_s::idFilterCh1, and GwParam_s::idFilterCh2.

Referenced by canGwOpen().

static ErrCode_e canGwInitRcvThread ( Channel_e  channel )

static

Function initializes receiving thread for given physical channel.

Parameters

[in]

channel

CAN Gateway's physical channel

Returns

CAN_GW_OK No error

CAN_GW_ERR An error occurred

Definition at line 479 of file cangw.cpp.

References ThreadParam_s::active, ThreadParam_s::attr, canGw::CAN_GW_ERR, canGw::CAN_GW_OK, canGwRcvThreadFunc(), canGw::CHANNEL_1, canGw::CHANNEL_2, ThreadParam_s::gwChannel, ThreadParam_s::id, threadParamCh1, and threadParamCh2.

Referenced by canGw::init().

static ErrCode_e canGwUninitRcvThread ( Channel_e  channel )

static

Function uninitializes receiving thread for given physical channel.

Parameters

[in]

channel

CAN Gateway's physical channel

Returns

CAN_GW_OK No error

CAN_GW_ERR An error occurred

Definition at line 533 of file cangw.cpp.

References ThreadParam_s::active, canGw::CAN_GW_ERR, canGw::CAN_GW_OK, canGw::CHANNEL_1, canGw::CHANNEL_2, ThreadParam_s::id, threadParamCh1, and threadParamCh2.

Referenced by canGw::uninit().

static void * canGwRcvThreadFunc ( void *  params )

static

Function handles CAN Gateway's receiving threads.

Parameters

[in]

params

Pointer to structure ThreadParam_s with thread parameters

Returns

Pointer to status of the thread - always NULL

Definition at line 568 of file cangw.cpp.

References canGw::CHANNEL_1, canGw::CHANNEL_2, gwMutex, gwParam, GwParam_s::idCh1, GwParam_s::idCh2, MAX_RX_MSGS, rcvCbCh1, rcvCbCh2, rxPassThruMsgCh1, and rxPassThruMsgCh2.

Referenced by canGwInitRcvThread().