source: pacpussensors/trunk/CanGateway/driver/VectorCanDriver.cpp@ 17

Last change on this file since 17 was 2, checked in by DHERBOMEZ Gérald, 11 years ago

correction of minor bugs (include and link). Build on Windows OK.

File size: 13.1 KB
Line 
1/********************************************************************
2// created: 2006/08/07 - 14:14
3// filename: VectorCanDriver.cpp
4//
5// author: Gerald Dherbomez
6//
7// version: $Id: VectorCanDriver.cpp 1203 2012-08-02 11:58:15Z morasjul $
8//
9// purpose: Implementation of the VectorCanDriver class
10// This file is based on the work 2 UTC students (Maricot
11// Benoit & Pham Eric) in the framework of their SY27
12// project.
13//
14*********************************************************************/
15
16
17#include "VectorCanDriver.h"
18#include <stdio.h>
19#include <string>
20#include "../CanFrame.h"
21
22#define WAIT_RECEIVING_FRAME_TIMEOUT 1000
23
24
25
26/**
27* Constructor which enables to initialize the different attributes of the class with default values.
28* @see ~VectorCanDriver (void)
29* @see VectorCanDriver (unsigned int gHwTypeT, Vaccess gChannelMaskT, unsigned int gCanIdT, unsigned int gBitRateT,int gHwChannelT)
30*/
31VectorCanDriver::VectorCanDriver (int channel, unsigned int bitRate)
32{
33 printf("Notice : VECTOR CAN Driver used\n");
34 gPortHandle = INVALID_PORTHANDLE;
35 gChannelMask = 0x3;
36 gPermissionMask = 0;
37 gCanId = 0x2A9;
38 gBitRate = bitRate;
39 gHwType = HWTYPE_CANAC2PCI;
40 gHwChannel = channel;
41 gEventHandle = 0;
42}
43
44
45/**
46* Constructor which enables to initialize the different attributes of the class with default values.
47* @see ~VectorCanDriver (void)
48* @see VectorCanDriver (unsigned int gHwTypeT, Vaccess gChannelMaskT, unsigned int gCanIdT, unsigned int gBitRateT,int gHwChannelT)
49*/
50VectorCanDriver::VectorCanDriver (void)
51{
52 printf("Notice : VECTOR CAN Driver used\n");
53 gPortHandle = INVALID_PORTHANDLE;
54 gChannelMask = 0x3;
55 gPermissionMask = 0;
56 gCanId = 0x2A9;
57 gBitRate = 500000;
58 gHwType = HWTYPE_CANAC2PCI;
59 gHwChannel = 0;
60 gEventHandle = 0;
61}
62
63
64/**
65* Constructor which enables to initialize the different attributes of the class with values given in parameters.
66* @see ~VectorCanDriver (void)
67* @see VectorCanDriver (void)
68*/
69VectorCanDriver::VectorCanDriver (unsigned int gHwTypeT, Vaccess gChannelMaskT, unsigned int gCanIdT, unsigned int gBitRateT,int gHwChannelT)
70{
71 printf("Notice : VECTOR CAN Driver used\n");
72 gPortHandle = INVALID_PORTHANDLE;
73 gChannelMask = gChannelMaskT;
74 gPermissionMask = 0;
75 gCanId = gCanIdT;
76 gBitRate = gBitRateT;
77 gHwType = gHwTypeT;
78 gHwChannel = gHwChannelT;
79 gEventHandle = 0;
80}
81
82
83/**
84* Constructor which enables to select the channel and to initialize the different attributes of the class with default values..
85* @see ~VectorCanDriver (void)
86* @see VectorCanDriver (void)
87*/
88VectorCanDriver::VectorCanDriver(int channel)
89{
90 printf("Notice : VECTOR CAN Driver used\n");
91 gPortHandle = INVALID_PORTHANDLE;
92 gChannelMask = 0x3;
93 gPermissionMask = 0;
94 gCanId = 0x2A9;
95 gBitRate = 1000000;
96 gHwType = HWTYPE_CANAC2PCI;
97 gHwChannel = channel;
98 gEventHandle = 0;
99}
100
101
102
103/**
104* Destructor which clean up the different attributs of the class.
105* @see VectorCanDriver (void)
106* @see VectorCanDriver (unsigned int gHwTypeT, Vaccess gChannelMaskT, unsigned int gCanIdT, unsigned int gBitRateT,int gHwChannelT)
107*/
108VectorCanDriver::~VectorCanDriver (void)
109{
110 gEventHandle = NULL;
111 gPortHandle = INVALID_PORTHANDLE;
112}
113
114
115/**
116* Member used to initialise the configuration of the CAN Card.
117* @see cleanUpPort (void)
118* @return a Vstatus variable which contain the error code of the function. On success, it return VSUCCESS. On failure, it return Vstatus error code which is defined in VCanD.h
119*/
120Vstatus VectorCanDriver::initPort (void)
121{
122 Vstatus vErr;
123 VsetAcceptance acc;
124
125 /* Open the driver */
126 vErr = ncdOpenDriver ();
127 if (vErr)
128 {
129 printf ("ERROR:initport %s!\n", ncdGetErrorString (vErr));
130 return vErr;
131 }
132
133 /* Select the channel */
134 gChannelMask = ncdGetChannelMask (gHwType,0,gHwChannel);
135 if (!gChannelMask)
136 {
137 printf ("ERROR: (initport) Channel not present!\n");
138 printf ("ERROR:(initport) %s!\n", ncdGetErrorString (VERROR));
139 return vErr;
140 }
141
142 /* Select the index */
143 int gChannelIndex = ncdGetChannelIndex (gHwType,0,gHwChannel);
144 if ( gChannelIndex == -1 )
145 {
146 printf ("ERROR: (initport) Channel not present!\n");
147 printf ("ERROR:(initport) %s!\n", ncdGetErrorString (VERROR));
148 return vErr;
149 }
150
151 /* Open a port */
152 vErr = ncdOpenPort (&gPortHandle,"PACPUS_CANDriver",gChannelMask,gChannelMask,&gPermissionMask,1024);
153 if (vErr != VSUCCESS)
154 {
155 printf ("ERROR:(init port) %s!\n", ncdGetErrorString (vErr));
156 return vErr;
157 }
158
159 /* Only if permission to initialize the channel */
160 if (gPermissionMask)
161 {
162 /* Set the bus timing */
163 vErr = ncdSetChannelBitrate (gPortHandle,gPermissionMask,gBitRate);
164 if (vErr)
165 {
166 printf ("ERROR: %s!\n", ncdGetErrorString (vErr));
167 if (gPortHandle!=INVALID_PORTHANDLE)
168 {
169 ncdClosePort (gPortHandle);
170 gPortHandle = INVALID_PORTHANDLE;
171 }
172 return vErr;
173 }
174 }
175 else if (gBitRate)
176 {
177 printf ("WARNING: No init access! Bitrate ignored.\n");
178 }
179
180 /* Enable the TX and disable the TXRQ notifications */
181 vErr = ncdSetChannelMode (gPortHandle,gChannelMask,1,0);
182 if (vErr)
183 {
184 printf ("ERROR:(init port) %s!\n", ncdGetErrorString (vErr));
185 if (gPortHandle!=INVALID_PORTHANDLE)
186 {
187 ncdClosePort (gPortHandle);
188 gPortHandle = INVALID_PORTHANDLE;
189 }
190 return vErr;
191 }
192
193 /* create a synchronisation object */
194 gEventHandle = CreateEvent (NULL, FALSE, FALSE, NULL);
195 vErr = ncdSetNotification (gPortHandle, (unsigned long*)&gEventHandle, 1);
196 if (vErr)
197 {
198 printf ("ERROR(init port): %s!\n", ncdGetErrorString (vErr));
199 ncdDeactivateChannel (gPortHandle, gChannelMask);
200 cleanUpPort ();
201 return vErr;
202 }
203
204 /* Open the acceptance filter */
205 acc.mask = 0x000; // relevant=1
206 acc.code = 0x000;
207
208 vErr = ncdSetChannelAcceptance (gPortHandle,gChannelMask,&acc);
209 if (vErr)
210 {
211 printf ("ERROR: %s!\n", ncdGetErrorString (vErr));
212 if (gPortHandle!=INVALID_PORTHANDLE)
213 {
214 ncdClosePort (gPortHandle);
215 gPortHandle = INVALID_PORTHANDLE;
216 }
217 return vErr;
218 }
219
220 /* Go on bus */
221 vErr = ncdActivateChannel (gPortHandle,gChannelMask);
222 if (vErr)
223 {
224 printf ("ERROR: %s!\n", ncdGetErrorString (vErr));
225 ncdDeactivateChannel (gPortHandle, gChannelMask);
226 cleanUpPort ();
227 return vErr;
228 }
229
230 // Reset the clocks of all channels connected to the port
231 vErr = ncdResetClock(gPortHandle);
232 if (vErr)
233 {
234 printf ("ERROR: %s!\n", ncdGetErrorString (vErr));
235 ncdDeactivateChannel (gPortHandle, gChannelMask);
236 cleanUpPort ();
237 return vErr;
238 }
239
240 return VSUCCESS;
241}
242
243
244/**
245* Member used to clean up the configuration of the CAN Card.
246* @see initPort (void)
247* @return a Vstatus variable which contain the error code of the function. On success, it return VSUCCESS. On failure, it return Vstatus error code which is defined in VCanD.h
248*/
249Vstatus VectorCanDriver::cleanUpPort (void)
250{
251 Vstatus vErr;
252 vErr = ncdDeactivateChannel(gPortHandle, gChannelMask);
253 if (vErr)
254 {
255 printf ("ERROR: (cleanUpPort) Channel not correctly deactivated!\n Driver not correctly closed!\n");
256 printf ("ERROR: %s!\n", ncdGetErrorString (vErr));
257 return vErr;
258 }
259 vErr = ncdClosePort (gPortHandle);
260 if (vErr)
261 {
262 printf ("ERROR: (cleanUpPort) Port not correctly closed!\n Driver not correctly closed!\n");
263 printf ("ERROR: %s!\n", ncdGetErrorString (vErr));
264 return vErr;
265 }
266 gPortHandle = INVALID_PORTHANDLE;
267 vErr = ncdCloseDriver ();
268 if (vErr)
269 {
270 printf ("ERROR: (cleanUpPort) Driver not correctly closed!\n");
271 printf ("ERROR: %s!\n", ncdGetErrorString (vErr));
272 return vErr;
273 }
274
275 return VSUCCESS;
276}
277
278
279/**
280* Member which permit to send a frame on the CAN bus and test if the frame is well acknowledged.
281* @param flags a character which contain the flags of the sent frame.
282* @param dlc a character which defined the number of characters of the sent frame.
283* @param data a table of characters with the data of the sent frame.
284* @see receiveFrame (unsigned char * flags, unsigned char * dlc, unsigned char ** data)
285* @return a Vstatus variable which contain the error code of the function. On success, it return VSUCCESS. On failure, it return Vstatus error code which is defined in VCanD.h
286*/
287//Vstatus VectorCanDriver::sendFrame (unsigned char flags, unsigned char dlc, unsigned char * data, int identifiant)
288Vstatus VectorCanDriver::sendFrame (struct CanFrame frame)
289{
290 Vstatus vErr;
291 Vevent event;
292 //Vevent * pEvent = NULL;
293
294 /* Create frame to send */
295 event.tag = V_TRANSMIT_MSG;
296 event.tagData.msg.id = frame.id;
297 event.tagData.msg.flags = 0;
298 event.tagData.msg.dlc = frame.dlc;
299
300 for (int i = 0; i < frame.dlc; i++)
301 event.tagData.msg.data[i] = frame.data[i];
302
303 /* Send the frame */
304 vErr = ncdTransmit (gPortHandle, gChannelMask, &event);
305
306 //printf("sendFrame ncdTransmit -- vErr=%d, event=0x%x\n", vErr, event);
307
308 if (vErr==VERR_QUEUE_IS_FULL)
309 {
310 printf("!");
311 }
312
313 else if (vErr)
314 {
315 printf ("ERROR:(send frame) %s!\n", ncdGetErrorString (vErr));
316 // ncdDeactivateChannel (gPortHandle, gChannelMask);
317 // cleanUpPort ();
318 return vErr;
319 }
320
321 return VSUCCESS;
322
323 ///* Wait the acknowledgement frame */
324 //waitReceivingFrame();
325
326 ///* Read the acknowledgement frame in the buffer */
327 //vErr = ncdReceive1 (gPortHandle,&pEvent);
328 ////printf("sendFrame ncdReceive1 -- vErr=%d, pEvent=0x%x\n", vErr, pEvent);
329
330 //if ( (pEvent==NULL) && (vErr==VERR_QUEUE_IS_EMPTY) )
331 //{
332 // printf ("%s\n",ncdGetErrorString (vErr));
333 // printf ("%s!\n",ncdGetErrorString (vErr));
334 // // ncdDeactivateChannel (gPortHandle, gChannelMask);
335 // // cleanUpPort ();
336 // return vErr;
337 //}
338
339 ///* If frame is well acknoledged */
340 //if (pEvent->tagData.msg.flags & 0x40)
341 // return VSUCCESS;
342 //else
343 //{/*
344 // printf("%x ",pEvent->tagData.msg.flags);
345 // printf (" no acknolegement of frame!\n");
346 // */
347 // return VERROR;
348 //}
349}
350
351
352/**
353* Member which permit to receive of a frame on the CAN bus.
354* @param flags a character pointer which contain the flags of the received frame.
355* @param dlc a character pointer which defined the number of characters of the received frame.
356* @param data a pointer of table of characters with the data of the received frame.
357* @see sendFrame (unsigned char flags, unsigned char dlc, unsigned char * data)
358* @return a Vstatus variable which contain the error code of the function. On success, it return VSUCCESS. On failure, it return Vstatus error code which is defined in VCanD.h
359*/
360//Vstatus VectorCanDriver::receiveFrame (unsigned char * flags, unsigned char * dlc, unsigned char * data, int * identifiant)
361Vstatus VectorCanDriver::receiveFrame (struct CanFrame &frame)
362{
363 int L ;
364 Vstatus vErr;
365 Vevent * pEvent = NULL;
366
367 do {
368 /* Read frame in the buffer */
369 ncdGetReceiveQueueLevel( gPortHandle , &L );
370 if( L <= 0 )
371 {
372 if (WaitForSingleObject (gEventHandle,WAIT_RECEIVING_FRAME_TIMEOUT) == WAIT_TIMEOUT)
373 {
374 //printf("no frame receiving in the %d last seconds\n", WAIT_RECEIVING_FRAME_TIMEOUT/1000);
375 return VERR_QUEUE_IS_EMPTY;
376 }
377 }
378
379 vErr = ncdReceive1 (gPortHandle,&pEvent);
380 if( vErr == VERROR )
381 {
382 printf ("receiveframe ERROR - ERROR: %s\n", ncdGetErrorString (vErr));
383 // ncdDeactivateChannel (gPortHandle, gChannelMask);
384 // cleanUpPort ();
385
386 return vErr;
387 }
388
389 } while((( pEvent==NULL ) && ( vErr==VERR_QUEUE_IS_EMPTY )) || ( vErr == VERROR ));
390
391 /* Return the flags field, dlc field and data field of the sent frame */
392 //frame.flags = pEvent->tagData.msg.flags;
393 frame.dlc = pEvent->tagData.msg.dlc;
394 frame.id = pEvent->tagData.msg.id;
395 if( ( frame.dlc > 8 ) || ( frame.dlc < 0 ))
396 frame.dlc = 8;
397
398 memcpy(frame.data,pEvent->tagData.msg.data, frame.dlc);
399
400 return VSUCCESS;
401}
402
403
404/**
405* Member which wait the reception of a frame on the CAN bus.
406* @see sendFrame (unsigned char flags, unsigned char dlc, unsigned char * data)
407* @see receiveFrame (unsigned char * flags, unsigned char * dlc, unsigned char ** data)
408*/
409void VectorCanDriver::waitReceivingFrame(void)
410{
411 if (WaitForSingleObject (gEventHandle,WAIT_RECEIVING_FRAME_TIMEOUT) == WAIT_TIMEOUT)
412 {
413 printf("waitReceivingFrame - Error : no frame receiving in the %d last seconds\n", WAIT_RECEIVING_FRAME_TIMEOUT/1000);
414 }
415}
416
417
418Vstatus VectorCanDriver::AcceptId(int id)
419{
420 if(ncdAddAcceptanceRange(gPortHandle,gChannelMask,id,id)!=VSUCCESS)
421 {
422 printf("erreur lors de la configuration du filtre");
423 return VERROR;
424 }
425 else
426 return VSUCCESS;
427}
428
429
430Vstatus VectorCanDriver::AcceptIdRange(int deb,int fin)
431{
432 if(ncdAddAcceptanceRange(gPortHandle,gChannelMask,deb,fin)!=VSUCCESS)
433 {
434 printf("erreur lors de la configuration du filtre");
435 return VERROR;
436 }
437 else
438 return VSUCCESS;
439}
Note: See TracBrowser for help on using the repository browser.