drivers/can_peak_win32/can_peak_win32.c
author greg
Fri, 17 Jul 2009 20:26:22 +0200
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parent 566 365d555fc0c6
child 574 e5d7f4412a4c
permissions -rwxr-xr-x
fix method to exit properly CanReceiveLoop
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/*
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This file is part of CanFestival, a library implementing CanOpen Stack.
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Copyright (C): Edouard TISSERANT and Francis DUPIN
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See COPYING file for copyrights details.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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*/
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#if defined(WIN32) && !defined(__CYGWIN__)
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#define usleep(micro) Sleep(micro%1000 ? (micro/1000) + 1 : (micro/1000))
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#else
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <fcntl.h>
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#endif
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#include "cancfg.h"
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#include "can_driver.h"
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#include "def.h"
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#ifndef extra_PCAN_init_params
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	#define extra_PCAN_init_params /**/
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#else
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	#define extra_PCAN_init_params\
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		,getenv("PCANHwType") ? strtol(getenv("PCANHwType"),NULL,0):0\
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		,getenv("PCANIO_Port") ? strtol(getenv("PCANIO_Port"),NULL,0):0\
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		,getenv("PCANInterupt") ? strtol(getenv("PCANInterupt"),NULL,0):0
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#endif
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static s_BOARD *first_board = NULL;
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//Create the Event for the first board
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HANDLE hEvent1 = NULL;
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#ifdef PCAN2_HEADER_
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	static s_BOARD *second_board = NULL;
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	HANDLE hEvent2 = NULL;
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#endif
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// Define for rtr CAN message
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#define CAN_INIT_TYPE_ST_RTR MSGTYPE_STANDARD | MSGTYPE_RTR
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/***************************************************************************/
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int TranslateBaudeRate(char* optarg){
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	if(!strcmp( optarg, "1M")) return CAN_BAUD_1M;
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	if(!strcmp( optarg, "500K")) return CAN_BAUD_500K;
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	if(!strcmp( optarg, "250K")) return CAN_BAUD_250K;
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	if(!strcmp( optarg, "125K")) return CAN_BAUD_125K;
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	if(!strcmp( optarg, "100K")) return CAN_BAUD_100K;
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	if(!strcmp( optarg, "50K")) return CAN_BAUD_50K;
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	if(!strcmp( optarg, "20K")) return CAN_BAUD_20K;
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	if(!strcmp( optarg, "10K")) return CAN_BAUD_10K;
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	if(!strcmp( optarg, "5K")) return CAN_BAUD_5K;
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	if(!strcmp( optarg, "none")) return 0;
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	return 0x0000;
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}
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UNS8 canInit (s_BOARD *board)
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{
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	int baudrate;
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	int ret = 0;
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#ifdef PCAN2_HEADER_
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	// if not the first handler
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	if(second_board == (s_BOARD *)board) {
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		if(baudrate = TranslateBaudeRate(board->baudrate))
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		{
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			ret = CAN2_Init(baudrate, CAN_INIT_TYPE_ST extra_PCAN_init_params);
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			if(ret != CAN_ERR_OK)
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				return 0;
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		}
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		//Create the Event for the first board
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		hEvent2 = CreateEvent(NULL, // lpEventAttributes
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							FALSE,  // bManualReset
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							FALSE,  // bInitialState
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							"");    // lpName
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		//Set Event Handle for CANReadExt
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		CAN2_SetRcvEvent(hEvent2);
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	}
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	else
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#endif
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	if(first_board == (s_BOARD *)board) {
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		if(baudrate = TranslateBaudeRate(board->baudrate))
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		{
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			ret = CAN_Init(baudrate, CAN_INIT_TYPE_ST extra_PCAN_init_params);
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			if(ret != CAN_ERR_OK)
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				return 0;
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		}
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		//Create the Event for the first board
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		hEvent1 = CreateEvent(NULL, // lpEventAttributes
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							FALSE,  // bManualReset
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							FALSE,  // bInitialState
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							"");    // lpName
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		//Set Event Handle for CANReadExt
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		CAN_SetRcvEvent(hEvent1);
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	}
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	return 1;
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}
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/********* functions which permit to communicate with the board ****************/
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UNS8 canReceive_driver (CAN_HANDLE fd0, Message * m)
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{
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	int ret=0;
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	UNS8 data;
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	TPCANMsg peakMsg;
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	TPCANTimestamp peakRcvTime;
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	DWORD Res;
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	DWORD result;
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	// loop until valid message or fatal error
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	do{
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#ifdef PCAN2_HEADER_
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		// if not the first handler
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		if(second_board == (s_BOARD *)fd0) {
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			//wait for CAN msg...
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			result = WaitForSingleObject(hEvent2, INFINITE);
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			if (result == WAIT_OBJECT_0)
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				Res = CAN2_ReadEx(&peakMsg, &peakRcvTime);
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				// Exit receive thread when handle is no more valid
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				if(Res & CAN_ERRMASK_ILLHANDLE)
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					return 1;
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		}
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		else
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#endif
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		// We read the queue looking for messages.
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   143
		if(first_board == (s_BOARD *)fd0) {
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   144
			result = WaitForSingleObject(hEvent1, INFINITE);
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   145
			if (result == WAIT_OBJECT_0)
c18397a2b035 fix method to exit properly CanReceiveLoop
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   146
			{
c18397a2b035 fix method to exit properly CanReceiveLoop
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   147
				Res = CAN_ReadEx(&peakMsg, &peakRcvTime);
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   148
				// Exit receive thread when handle is no more valid
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   149
				if(Res & CAN_ERRMASK_ILLHANDLE)
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   150
					return 1;
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   151
			}
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   152
		}
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   153
		else
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   154
			Res = CAN_ERR_BUSOFF;
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   155
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   156
		// A message was received : we process the message(s)
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   157
		if (Res == CAN_ERR_OK)
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   158
		{
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   159
			// if something different that 11bit or rtr... problem
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   160
			if (peakMsg.MSGTYPE & ~(MSGTYPE_STANDARD | MSGTYPE_RTR))
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   161
			{
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   162
				if (peakMsg.MSGTYPE == CAN_ERR_BUSOFF)
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   163
				{
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   164
					printf ("!!! Peak board read : re-init\n");
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   165
					canInit((s_BOARD*) fd0);
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   166
					usleep (10000);
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   167
				}
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   168
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   169
				// If status, return status if 29bit, return overrun
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   170
				return peakMsg.MSGTYPE ==
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   171
					MSGTYPE_STATUS ? peakMsg.DATA[2] : CAN_ERR_OVERRUN;
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   172
			}
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   173
			m->cob_id = peakMsg.ID;
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   174
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   175
			if (peakMsg.MSGTYPE == CAN_INIT_TYPE_ST)	/* bits of MSGTYPE_ */
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   176
				m->rtr = 0;
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   177
			else
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   178
				m->rtr = 1;
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   179
			m->len = peakMsg.LEN;	/* count of data bytes (0..8) */
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   180
			for (data = 0; data < peakMsg.LEN; data++)
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   181
				m->data[data] = peakMsg.DATA[data];	/* data bytes, up to 8 */
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   182
#if defined DEBUG_MSG_CONSOLE_ON
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   183
			MSG("in : ");
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   184
			print_message(m);
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   185
#endif
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   186
		}
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   187
		else
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   188
		{
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   189
			// not benign error => fatal error
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   190
			if (!(Res & CAN_ERR_QRCVEMPTY
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   191
					|| Res & CAN_ERR_BUSLIGHT
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   192
					|| Res & CAN_ERR_BUSHEAVY))
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   193
			{
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   194
				printf ("canReceive returned error (%d)\n", Res);
566
365d555fc0c6 fixed : unlock and terminate CanReceive loop thread when canclose is called.
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   195
				return 1;
365d555fc0c6 fixed : unlock and terminate CanReceive loop thread when canclose is called.
greg
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   196
			}
570
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   197
		}
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   198
	}while(Res != CAN_ERR_OK);
563
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   199
	return 0;
394440e3b6e4 update canReceive_driver to match with Peak new read function (event)
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   200
}
394440e3b6e4 update canReceive_driver to match with Peak new read function (event)
greg
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   201
394440e3b6e4 update canReceive_driver to match with Peak new read function (event)
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   202
/***************************************************************************/
394440e3b6e4 update canReceive_driver to match with Peak new read function (event)
greg
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   203
UNS8 canSend_driver (CAN_HANDLE fd0, Message * m)
145
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   204
{
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   205
	UNS8 data;
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   206
	TPCANMsg peakMsg;
365
9b76e0881beb Changed cob_id from struct{UNS32} to UNS16
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   207
	peakMsg.ID = m->cob_id;	/* 11/29 bit code */
145
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   208
	if (m->rtr == 0)
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   209
		peakMsg.MSGTYPE = CAN_INIT_TYPE_ST;	/* bits of MSGTYPE_ */
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   210
	else
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etisserant
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diff changeset
   211
	{
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   212
		peakMsg.MSGTYPE = CAN_INIT_TYPE_ST_RTR;	/* bits of MSGTYPE_ */
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diff changeset
   213
	}
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
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   214
	peakMsg.LEN = m->len;
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etisserant
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   215
	/* count of data bytes (0..8) */
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   216
	for (data = 0; data < m->len; data++)
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   217
		peakMsg.DATA[data] = m->data[data];	/* data bytes, up to 8 */
563
394440e3b6e4 update canReceive_driver to match with Peak new read function (event)
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diff changeset
   218
145
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   219
	do
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   220
	{
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   221
#ifdef PCAN2_HEADER_
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   222
		// if not the first handler
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   223
		if(second_board == (s_BOARD *)fd0)
267
96c688ebcde7 Add win32 target (--can=win32) to compile with msys and mingw32
greg
parents: 145
diff changeset
   224
		{
145
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
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   225
			errno = CAN2_Write (&peakMsg);
267
96c688ebcde7 Add win32 target (--can=win32) to compile with msys and mingw32
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diff changeset
   226
		}
563
394440e3b6e4 update canReceive_driver to match with Peak new read function (event)
greg
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   227
		else
145
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diff changeset
   228
#endif
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   229
		if(first_board == (s_BOARD *)fd0)
267
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   230
			{
96c688ebcde7 Add win32 target (--can=win32) to compile with msys and mingw32
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   231
				errno = CAN_Write (&peakMsg);
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diff changeset
   232
			}
563
394440e3b6e4 update canReceive_driver to match with Peak new read function (event)
greg
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   233
		else
145
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   234
			goto fail;
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
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   235
		if (errno)
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
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   236
		{
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
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   237
			if (errno == CAN_ERR_BUSOFF)
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
etisserant
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   238
			{
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
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   239
				printf ("!!! Peak board write : re-init\n");
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
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   240
				canInit((s_BOARD*)fd0);
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
etisserant
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diff changeset
   241
				usleep (10000);
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
etisserant
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diff changeset
   242
			}
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
etisserant
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diff changeset
   243
			usleep (1000);
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
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diff changeset
   244
		}
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
etisserant
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diff changeset
   245
	}
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
etisserant
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diff changeset
   246
	while (errno != CAN_ERR_OK);
341
7ff01f109bbc Windows related enhancements
etisserant
parents: 329
diff changeset
   247
#if defined DEBUG_MSG_CONSOLE_ON
454
bc000083297a - add RTAI support
greg
parents: 384
diff changeset
   248
	MSG("out : ");
341
7ff01f109bbc Windows related enhancements
etisserant
parents: 329
diff changeset
   249
	print_message(m);
7ff01f109bbc Windows related enhancements
etisserant
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diff changeset
   250
#endif
145
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
etisserant
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diff changeset
   251
	return 0;
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
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diff changeset
   252
fail:
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
etisserant
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diff changeset
   253
	return 1;
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
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diff changeset
   254
}
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
etisserant
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diff changeset
   255
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
etisserant
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diff changeset
   256
/***************************************************************************/
384
83793fc7ce48 added canChangeBaudRate to the driver interface
groke6
parents: 365
diff changeset
   257
UNS8 canChangeBaudRate_driver( CAN_HANDLE fd, char* baud)
83793fc7ce48 added canChangeBaudRate to the driver interface
groke6
parents: 365
diff changeset
   258
{
83793fc7ce48 added canChangeBaudRate to the driver interface
groke6
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diff changeset
   259
	printf("canChangeBaudRate not yet supported by this driver\n");
83793fc7ce48 added canChangeBaudRate to the driver interface
groke6
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diff changeset
   260
	return 0;
83793fc7ce48 added canChangeBaudRate to the driver interface
groke6
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diff changeset
   261
}
83793fc7ce48 added canChangeBaudRate to the driver interface
groke6
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   262
83793fc7ce48 added canChangeBaudRate to the driver interface
groke6
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diff changeset
   263
/***************************************************************************/
563
394440e3b6e4 update canReceive_driver to match with Peak new read function (event)
greg
parents: 454
diff changeset
   264
CAN_HANDLE canOpen_driver (s_BOARD * board)
145
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
etisserant
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diff changeset
   265
{
267
96c688ebcde7 Add win32 target (--can=win32) to compile with msys and mingw32
greg
parents: 145
diff changeset
   266
  char busname[64];
96c688ebcde7 Add win32 target (--can=win32) to compile with msys and mingw32
greg
parents: 145
diff changeset
   267
  char* pEnd;
566
365d555fc0c6 fixed : unlock and terminate CanReceive loop thread when canclose is called.
greg
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diff changeset
   268
  int ret;
563
394440e3b6e4 update canReceive_driver to match with Peak new read function (event)
greg
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diff changeset
   269
267
96c688ebcde7 Add win32 target (--can=win32) to compile with msys and mingw32
greg
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diff changeset
   270
  //printf ("Board Busname=%d.\n",strtol(board->busname, &pEnd,0));
96c688ebcde7 Add win32 target (--can=win32) to compile with msys and mingw32
greg
parents: 145
diff changeset
   271
  if (strtol(board->busname, &pEnd,0) == 0)
96c688ebcde7 Add win32 target (--can=win32) to compile with msys and mingw32
greg
parents: 145
diff changeset
   272
  {
96c688ebcde7 Add win32 target (--can=win32) to compile with msys and mingw32
greg
parents: 145
diff changeset
   273
      first_board = board;
566
365d555fc0c6 fixed : unlock and terminate CanReceive loop thread when canclose is called.
greg
parents: 563
diff changeset
   274
      //printf ("First Board selected\n");
365d555fc0c6 fixed : unlock and terminate CanReceive loop thread when canclose is called.
greg
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   275
      ret = canInit(board);
365d555fc0c6 fixed : unlock and terminate CanReceive loop thread when canclose is called.
greg
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   276
      if(ret)
365d555fc0c6 fixed : unlock and terminate CanReceive loop thread when canclose is called.
greg
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   277
    	  return (CAN_HANDLE)board;
267
96c688ebcde7 Add win32 target (--can=win32) to compile with msys and mingw32
greg
parents: 145
diff changeset
   278
  }
329
7717252e3ed9 Changes to compile for win32
greg
parents: 301
diff changeset
   279
  #ifdef PCAN2_HEADER_
267
96c688ebcde7 Add win32 target (--can=win32) to compile with msys and mingw32
greg
parents: 145
diff changeset
   280
  if (strtol(board->busname, &pEnd,0) == 1)
96c688ebcde7 Add win32 target (--can=win32) to compile with msys and mingw32
greg
parents: 145
diff changeset
   281
  {
329
7717252e3ed9 Changes to compile for win32
greg
parents: 301
diff changeset
   282
      second_board = board;
566
365d555fc0c6 fixed : unlock and terminate CanReceive loop thread when canclose is called.
greg
parents: 563
diff changeset
   283
      //printf ("Second Board selected\n");
365d555fc0c6 fixed : unlock and terminate CanReceive loop thread when canclose is called.
greg
parents: 563
diff changeset
   284
      ret = canInit(board);
365d555fc0c6 fixed : unlock and terminate CanReceive loop thread when canclose is called.
greg
parents: 563
diff changeset
   285
      if(ret)
365d555fc0c6 fixed : unlock and terminate CanReceive loop thread when canclose is called.
greg
parents: 563
diff changeset
   286
    	  return (CAN_HANDLE)board;
267
96c688ebcde7 Add win32 target (--can=win32) to compile with msys and mingw32
greg
parents: 145
diff changeset
   287
  }
329
7717252e3ed9 Changes to compile for win32
greg
parents: 301
diff changeset
   288
  #endif
7717252e3ed9 Changes to compile for win32
greg
parents: 301
diff changeset
   289
  return NULL;
145
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diff changeset
   290
}
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
etisserant
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diff changeset
   291
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
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diff changeset
   292
/***************************************************************************/
563
394440e3b6e4 update canReceive_driver to match with Peak new read function (event)
greg
parents: 454
diff changeset
   293
int canClose_driver (CAN_HANDLE fd0)
145
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
etisserant
parents: 42
diff changeset
   294
{
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
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parents: 42
diff changeset
   295
#ifdef PCAN2_HEADER_
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
etisserant
parents: 42
diff changeset
   296
	// if not the first handler
e747d2e26af0 Win32 Native support and dynamicaly loaded CAN drivers for Linux, Cygwin and Win32.
etisserant
parents: 42
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	if(second_board == (s_BOARD *)fd0)
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	{
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		CAN2_SetRcvEvent(NULL);
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		CAN2_Close ();
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		SetEvent(hEvent2);
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		second_board = (s_BOARD *)NULL;
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	}else
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#endif
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	if(first_board == (s_BOARD *)fd0)
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	{
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		CAN_SetRcvEvent(NULL);
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		CAN_Close ();
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		SetEvent(hEvent1);
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		first_board = (s_BOARD *)NULL;
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	}
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	return 0;
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}