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Refs #316. Added empty framework for the Kvaser Leaf Light v2 CAN interface. 

git-svn-id: https://svn.code.sf.net/p/openblt/code/trunk@351 5dc33758-31d5-4daf-9ae8-b24bf3d40d73
This commit is contained in:
Frank Voorburg 2017-08-22 09:33:48 +00:00
parent d3ca84dcdb
commit dbd3903f11
4 changed files with 331 additions and 0 deletions
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5
Host/Source/LibOpenBLT/candriver.c
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@ -37,6 +37,7 @@
#include "candriver.h" /* Generic CAN driver module */
#if defined(PLATFORM_WIN32)
#include "pcanusb.h" /* Peak PCAN-USB interface */
#include "leaflight.h" /* Kvaser Leaf Light v2 interface */
#endif
#if defined(PLATFORM_LINUX)
#include "socketcan.h" /* SocketCAN interface */
@ -84,6 +85,10 @@ void CanInit(tCanSettings const * settings)
{
canIfPtr = PCanUsbGetInterface();
}
else if (strcmp(settings->devicename, "kvaser_leaflight") == 0)
{
canIfPtr = LeafLightGetInterface();
}
#endif
#if defined(PLATFORM_LINUX)
/* On Linux, the device name is the name of the SocketCAN link, so always link

276
Host/Source/LibOpenBLT/port/windows/canif/kvaser/leaflight.c Normal file
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@ -0,0 +1,276 @@
/************************************************************************************//**
* \file leaflight.c
* \brief Kvaser Leaf Light v2 interface source file.
* \ingroup Kvaser_LeafLight
* \internal
*----------------------------------------------------------------------------------------
* C O P Y R I G H T
*----------------------------------------------------------------------------------------
* Copyright (c) 2017 by Feaser http://www.feaser.com All rights reserved
*
*----------------------------------------------------------------------------------------
* L I C E N S E
*----------------------------------------------------------------------------------------
* This file is part of OpenBLT. OpenBLT is free software: you can redistribute it and/or
* modify it under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any later
* version.
*
* OpenBLT is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You have received a copy of the GNU General Public License along with OpenBLT. It
* should be located in ".\Doc\license.html". If not, contact Feaser to obtain a copy.
*
* \endinternal
****************************************************************************************/
/****************************************************************************************
* Include files
****************************************************************************************/
#include <assert.h> /* for assertions */
#include <stdint.h> /* for standard integer types */
#include <stddef.h> /* for NULL declaration */
#include <stdbool.h> /* for boolean type */
#include <stdlib.h> /* for standard library */
#include <string.h> /* for string library */
#include "candriver.h" /* Generic CAN driver module */
#include "leaflight.h" /* Kvaser Leaf Light v2 interface */
#include <windows.h> /* for Windows API */
/***************************************************************************************
* Function prototypes
****************************************************************************************/
/* CAN interface functions. */
static void LeafLightInit(tCanSettings const * settings);
static void LeafLightTerminate(void);
static bool LeafLightConnect(void);
static void LeafLightDisconnect(void);
static bool LeafLightTransmit(tCanMsg const * msg);
static bool LeafLightIsBusError(void);
static void LeafLightRegisterEvents(tCanEvents const * events);
/****************************************************************************************
* Local constant declarations
****************************************************************************************/
/** \brief CAN interface structure filled with Kvaser Leaf Light v2 specifics. */
static const tCanInterface leafLightInterface =
{
LeafLightInit,
LeafLightTerminate,
LeafLightConnect,
LeafLightDisconnect,
LeafLightTransmit,
LeafLightIsBusError,
LeafLightRegisterEvents
};
/****************************************************************************************
* Local data declarations
****************************************************************************************/
/** \brief The settings to use in this CAN interface. */
static tCanSettings leafLightSettings;
/** \brief List with callback functions that this driver should use. */
static tCanEvents * leafLightEventsList;
/** \brief Total number of event entries into the \ref leafLightEventsList list. */
static uint32_t leafLightEventsEntries;
/***********************************************************************************//**
** \brief Obtains a pointer to the CAN interface structure, so that it can be linked
** to the generic CAN driver module.
** \return Pointer to CAN interface structure.
**
****************************************************************************************/
tCanInterface const * LeafLightGetInterface(void)
{
return &leafLightInterface;
} /*** end of LeafLightGetInterface ***/
/************************************************************************************//**
** \brief Initializes the CAN interface.
** \param settings Pointer to the CAN interface settings.
**
****************************************************************************************/
static void LeafLightInit(tCanSettings const * settings)
{
char * canDeviceName;
/* Initialize locals. */
leafLightEventsList = NULL;
leafLightEventsEntries = 0;
/* Reset CAN interface settings. */
leafLightSettings.devicename = "";
leafLightSettings.channel = 0;
leafLightSettings.baudrate = CAN_BR500K;
leafLightSettings.code = 0x00000000u;
leafLightSettings.mask = 0x00000000u;
/* Check parameters. */
assert(settings != NULL);
/* Only continue with valid parameters. */
if (settings != NULL) /*lint !e774 */
{
/* Shallow copy the CAN interface settings for later usage. */
leafLightSettings = *settings;
/* The devicename is a pointer and it is not gauranteed that it stays valid so we need
* to deep copy this one. note the +1 for '\0' in malloc.
*/
assert(settings->devicename != NULL);
if (settings->devicename != NULL) /*lint !e774 */
{
canDeviceName = malloc(strlen(settings->devicename) + 1);
assert(canDeviceName != NULL);
if (canDeviceName != NULL) /*lint !e774 */
{
strcpy(canDeviceName, settings->devicename);
leafLightSettings.devicename = canDeviceName;
}
}
/* ##Vg TODO Perform initialization of Kvaser Leaf Light API. */
}
} /*** end of LeafLightInit ***/
/************************************************************************************//**
** \brief Terminates the CAN interface.
**
****************************************************************************************/
static void LeafLightTerminate(void)
{
/* ##Vg TODO Perform termination of Kvaser Leaf Light API. */
/* Release memory that was allocated for storing the device name. */
if (leafLightSettings.devicename != NULL)
{
free((char *)leafLightSettings.devicename);
}
/* Reset CAN interface settings. */
leafLightSettings.devicename = "";
leafLightSettings.channel = 0;
leafLightSettings.baudrate = CAN_BR500K;
leafLightSettings.code = 0x00000000u;
leafLightSettings.mask = 0x00000000u;
/* Release memory that was allocated for CAN events and reset the entry count. */
if ( (leafLightEventsList != NULL) && (leafLightEventsEntries != 0) )
{
free(leafLightEventsList);
leafLightEventsEntries = 0;
}
} /*** end of LeafLightTerminate ***/
/************************************************************************************//**
** \brief Connects the CAN interface.
** \return True if connected, false otherwise.
**
****************************************************************************************/
static bool LeafLightConnect(void)
{
bool result = false;
/* ##Vg TODO Process and verify settings, configure acceptance filter, connect. */
/* Give the result back to the caller. */
return result;
} /*** end of LeafLightConnect ***/
/************************************************************************************//**
** \brief Disconnects the CAN interface.
**
****************************************************************************************/
static void LeafLightDisconnect(void)
{
/* ##Vg TODO Disconnect. */
} /*** end of LeafLightDisconnect ***/
/************************************************************************************//**
** \brief Submits a message for transmission on the CAN bus.
** \param msg Pointer to CAN message structure.
** \return True if successful, false otherwise.
**
****************************************************************************************/
static bool LeafLightTransmit(tCanMsg const * msg)
{
bool result = false;
/* Check parameters. */
assert(msg != NULL);
/* Only continue with valid parameters. */
if (msg != NULL) /*lint !e774 */
{
/* ##Vg TODO Transmit and trigger event(s). */
}
/* Give the result back to the caller. */
return result;
} /*** end of LeafLightTransmit ***/
/************************************************************************************//**
** \brief Checks if a bus off or bus heavy situation occurred.
** \return True if a bus error situation was detected, false otherwise.
**
****************************************************************************************/
static bool LeafLightIsBusError(void)
{
bool result = false;
/* ##Vg TODO Check and process status. */
/* Give the result back to the caller. */
return result;
} /*** end of LeafLightIsBusError ***/
/************************************************************************************//**
** \brief Registers the event callback functions that should be called by the CAN
** interface.
** \param events Pointer to structure with event callback function pointers.
**
****************************************************************************************/
static void LeafLightRegisterEvents(tCanEvents const * events)
{
/* Check parameters. */
assert(events != NULL);
/* Only continue with valid parameters. */
if (events != NULL) /*lint !e774 */
{
/* Increase length of the list to make space for one more event entry. Note that
* it is okay to call realloc with a NULL pointer. In this case it simply behaves
* as malloc.
*/
leafLightEventsList = realloc(leafLightEventsList,
(sizeof(tCanEvents) * (leafLightEventsEntries + 1)));
/* Assert reallocation. */
assert(leafLightEventsList != NULL);
/* Only continue if reallocation was successful. */
if (leafLightEventsList != NULL)
{
/* Increment events entry count. */
leafLightEventsEntries++;
/* Store the events in the new entry. */
leafLightEventsList[leafLightEventsEntries - 1] = *events;
}
/* Reallocation failed. */
else
{
/* Reset events entry count. */
leafLightEventsEntries = 0;
}
}
} /*** end of LeafLightRegisterEvents ***/
/*********************************** end of leaflight.c ********************************/

50
Host/Source/LibOpenBLT/port/windows/canif/kvaser/leaflight.h Normal file
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@ -0,0 +1,50 @@
/************************************************************************************//**
* \file leaflight.h
* \brief Kvaser Leaf Light v2 interface header file.
* \ingroup Kvaser_LeafLight
* \internal
*----------------------------------------------------------------------------------------
* C O P Y R I G H T
*----------------------------------------------------------------------------------------
* Copyright (c) 2017 by Feaser http://www.feaser.com All rights reserved
*
*----------------------------------------------------------------------------------------
* L I C E N S E
*----------------------------------------------------------------------------------------
* This file is part of OpenBLT. OpenBLT is free software: you can redistribute it and/or
* modify it under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any later
* version.
*
* OpenBLT is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You have received a copy of the GNU General Public License along with OpenBLT. It
* should be located in ".\Doc\license.html". If not, contact Feaser to obtain a copy.
*
* \endinternal
****************************************************************************************/
/************************************************************************************//**
* \defgroup Kvaser_LeafLight Kvaser Leaf Light v2 interface
* \brief This module implements the CAN interface for the Kvaser Leaf Light v2.
* \ingroup CanDriver
****************************************************************************************/
#ifndef LEAFLIGHT_H
#define LEAFLIGHT_H
#ifdef __cplusplus
extern "C" {
#endif
/***************************************************************************************
* Function prototypes
****************************************************************************************/
tCanInterface const * LeafLightGetInterface(void);
#ifdef __cplusplus
}
#endif
#endif /* LEAFLIGHT_H */
/*********************************** end of leaflight.h ********************************/

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