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@@ -0,0 +1,352 @@
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+#include "adc_can_nvidia_agx/nvcan.h"
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+
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+#include <stdio.h>
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+#include <stdlib.h>
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+#include <stdint.h>
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+#include <unistd.h>
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+#include <string.h>
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+#include <signal.h>
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+#include <ctype.h>
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+#include <libgen.h>
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+#include <time.h>
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+#include <errno.h>
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+
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+#include <sys/time.h>
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+#include <sys/types.h>
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+#include <sys/socket.h>
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+#include <sys/ioctl.h>
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+#include <sys/uio.h>
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+#include <net/if.h>
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+
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+
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+#include <linux/can.h>
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+#include <linux/can/raw.h>
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+
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+#include <QDateTime>
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+
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+#include <iostream>
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+
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+/* for hardware timestamps - since Linux 2.6.30 */
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+#ifndef SO_TIMESTAMPING
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+#define SO_TIMESTAMPING 37
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+#endif
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+
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+/* from #include <linux/net_tstamp.h> - since Linux 2.6.30 */
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+#define SOF_TIMESTAMPING_SOFTWARE (1<<4)
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+#define SOF_TIMESTAMPING_RX_SOFTWARE (1<<3)
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+#define SOF_TIMESTAMPING_RAW_HARDWARE (1<<6)
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+
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+#define MAXSOCK 16 /* max. number of CAN interfaces given on the cmdline */
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+#define MAXIFNAMES 30 /* size of receive name index to omit ioctls */
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+#define MAXCOL 6 /* number of different colors for colorized output */
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+#define ANYDEV "any" /* name of interface to receive from any CAN interface */
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+#define ANL "\r\n" /* newline in ASC mode */
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+
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+#define SILENT_INI 42 /* detect user setting on commandline */
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+#define SILENT_OFF 0 /* no silent mode */
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+#define SILENT_ANI 1 /* silent mode with animation */
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+#define SILENT_ON 2 /* silent mode (completely silent) */
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+
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+#include <QTime>
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+
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+#define BUF_SIZE 1000
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+
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+std::string CANNAME[] = {"can0","can1"};
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+
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+nvcan::nvcan()
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+{
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+// qDebug("nvcan");
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+// connect(this,SIGNAL(SIG_CANOPENSTATE(bool,int,const char*)),this,SLOT(onMsg(bool,int,const char*)));
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+
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+
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+
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+
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+}
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+
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+void nvcan::run()
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+{
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+
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+ int currmax = 2;
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+ fd_set rdfs;
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+ int s[MAXSOCK];
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+ int ret;
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+
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+ int canfd_on = 1;
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+
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+ struct sockaddr_can addr;
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+ char ctrlmsg[CMSG_SPACE(sizeof(struct timeval) + 3*sizeof(struct timespec) + sizeof(__u32))];
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+ struct iovec iov;
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+ struct msghdr msg;
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+ struct canfd_frame frame;
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+ int nbytes, i, maxdlen;
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+ (void)maxdlen;
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+ struct ifreq ifr;
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+ struct timeval tv, last_tv;
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+ (void)tv;
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+ (void)last_tv;
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+ struct timeval timeout_config = { 0, 0 }, *timeout_current = 0;
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+
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+
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+ for(i=0;i<currmax;i++)
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+ {
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+ s[i] = socket(PF_CAN, SOCK_RAW, CAN_RAW);
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+ if (s[i] < 0) {
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+ emit SIG_CANOPENSTATE(false,-1,"Create Socket Error");
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+ return;
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+ }
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+
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+ addr.can_family = AF_CAN;
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+
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+ memset(&ifr.ifr_name, 0, sizeof(ifr.ifr_name));
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+ strncpy(ifr.ifr_name, CANNAME[i].data(), 5);
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+
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+ if (ioctl(s[i], SIOCGIFINDEX, &ifr) < 0) {
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+ emit SIG_CANOPENSTATE(false,-2,"SIOCGIFINDEX");
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+ return;
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+ }
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+ addr.can_ifindex = ifr.ifr_ifindex;
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+
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+ //CANFD Support
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+ setsockopt(s[i], SOL_CAN_RAW, CAN_RAW_FD_FRAMES, &canfd_on, sizeof(canfd_on));
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+
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+ if (bind(s[i], (struct sockaddr *)&addr, sizeof(addr)) < 0) {
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+ emit SIG_CANOPENSTATE(false,-3,"bind error");
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+ return;
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+ }
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+ }
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+
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+ mbCANOpen = true;
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+ emit SIG_CANOPENSTATE(true,0,"open can card successfully");
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+
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+ iov.iov_base = &frame;
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+ msg.msg_name = &addr;
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+ msg.msg_iov = &iov;
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+ msg.msg_iovlen = 1;
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+ msg.msg_control = &ctrlmsg;
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+
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+ qint64 nLastRecv = QDateTime::currentMSecsSinceEpoch();
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+ int nRecvState = 0; // 0 Have Data 1 No Data;
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+
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+ mbRunning = true;
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+
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+ int nrecvcount = 0;
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+
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+ while((!QThread::isInterruptionRequested())&&(mbCANOpen))
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+ {
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+ FD_ZERO(&rdfs);
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+ for (i=0; i<currmax; i++)
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+ FD_SET(s[i], &rdfs);
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+
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+ if (timeout_current)
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+ *timeout_current = timeout_config;
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+
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+ timeout_config.tv_sec= 0;
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+ timeout_config.tv_usec = 100;;
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+ timeout_current = &timeout_config;
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+ ret = select(s[currmax-1]+1, &rdfs, NULL, NULL, timeout_current);
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+ if (ret < 0) {
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+ emit SIG_CANOPENSTATE(false,-4,"select error");
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+ mbCANOpen = false;
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+ continue;
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+ }
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+
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+ for (i=0; i<currmax; i++) { /* check all CAN RAW sockets */
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+
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+ if (FD_ISSET(s[i], &rdfs)) {
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+
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+ nLastRecv = QDateTime::currentMSecsSinceEpoch();
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+ /* these settings may be modified by recvmsg() */
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+ iov.iov_len = sizeof(frame);
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+ msg.msg_namelen = sizeof(addr);
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+ msg.msg_controllen = sizeof(ctrlmsg);
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+ msg.msg_flags = 0;
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+
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+ nbytes = recvmsg(s[i], &msg, 0);
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+
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+ if (nbytes < 0) {
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+ // if ((errno == ENETDOWN) && !down_causes_exit) {
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+ if ((errno == ENETDOWN)) {
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+ emit SIG_CANOPENSTATE(false,-5,"can card down");
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+ fprintf(stderr, "%s: interface down\n", CANNAME[i].data());
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+ return;
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+ }
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+ continue;
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+// perror("read");
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+// return 1;
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+ }
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+
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+ if ((size_t)nbytes == CAN_MTU)
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+ maxdlen = CAN_MAX_DLEN;
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+ else if ((size_t)nbytes == CANFD_MTU)
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+ maxdlen = CANFD_MAX_DLEN;
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+ else {
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+ continue;
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+ }
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+
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+ nrecvcount++;
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+ // qDebug("receive msg.");
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+ mMutex.lock();
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+
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+ basecan_msg msg;
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+ msg.id = frame.can_id&0x1fffffff;
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+ if((frame.can_id&0x80000000)!= 0)msg.isExtern = true;
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+ else msg.isExtern = false;
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+ if((frame.can_id&0x40000000)!= 0)msg.isRemote = true;
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+ else msg.isRemote = false;
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+ msg.nLen = frame.len;
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+// if(msg.id == 0x1c2)qDebug("id = %08x",msg.id);
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+ if((frame.len<=64)&&(frame.len>0))memcpy(msg.data,frame.data,frame.len);
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+ if(mMsgRecvBuf[i].size()<BUF_SIZE)
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+ {
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+ mMsgRecvBuf[i].push_back(msg);
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+ }
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+
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+ mMutex.unlock();
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+
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+ }
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+ }
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+
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+ if((QDateTime::currentMSecsSinceEpoch() - nLastRecv)> 1000)
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+ {
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+ if(nRecvState == 0)
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+ {
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+ nRecvState = -1;
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+ }
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+ }
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+ else
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+ {
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+ if(nRecvState == -1)
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+ {
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+ nRecvState = 0;
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+ }
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+ }
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+
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+ struct canfd_frame framesend[2500];
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+
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+
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+ for(int nch =0;nch<currmax;nch++)
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+ {
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+ int nsend = 0;
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+ mMutex.lock();
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+ for(i=0;i<static_cast<int>( mMsgSendBuf[nch].size());i++)
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+ {
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+ if(i>=2500)break;
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+ framesend[i].len = mMsgSendBuf[nch].at(i).nLen;
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+ memcpy(framesend[i].data,mMsgSendBuf[nch].at(i).data,framesend[i].len);
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+ framesend[i].can_id = mMsgSendBuf[nch].at(i).id;
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+ if(mMsgSendBuf[nch].at(i).isExtern)
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+ {
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+ framesend[i].can_id = framesend[i].can_id|0x80000000;
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+ }
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+ else
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+ {
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+ framesend[i].can_id = framesend[i].can_id&0x7ff;
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+ }
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+ if(mMsgSendBuf[nch].at(i).isRemote)
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+ {
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+ framesend[i].can_id= framesend[i].can_id|0x40000000;
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+ }
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+
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+
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+
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+ nsend++;
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+ }
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+ mMsgSendBuf[nch].clear();
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+ mMutex.unlock();
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+ if(nsend > 0)
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+ {
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+ for(i=0;i<nsend;i++)
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+ {
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+ int nsendbyte = 16;
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+ if(framesend[i].len>8)
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+ {
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+ nsendbyte = CANFD_MTU;
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+ }
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+ if (write(s[nch], &framesend[i],nsendbyte) != nsendbyte) {
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+ perror("write error 1.");
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+ continue;
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+ }
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+ }
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+ }
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+
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+ }
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+
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+ }
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+
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+ for (i=0; i<currmax; i++)
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+ {
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+ close(s[i]);
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+ }
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+ qDebug("nvcan thread close.");
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+ mbRunning = false;
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+}
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+
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+void nvcan::startdev()
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+{
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+ start();
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+}
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+
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+void nvcan::stopdev()
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+{
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+ requestInterruption();
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+
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+ int64_t nstart = std::chrono::system_clock::now().time_since_epoch().count()/1000000;
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+ int64_t nnow = std::chrono::system_clock::now().time_since_epoch().count()/1000000;
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+ while(abs(nnow - nstart)<100)
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+ {
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+ nnow = std::chrono::system_clock::now().time_since_epoch().count()/1000000;
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+ if(mbRunning == false)
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+ {
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+ qDebug("can is closed.");
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+ break;
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+ }
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+ }
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+}
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+
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+int nvcan::GetMessage(const int nch,basecan_msg *pMsg, const int nCap)
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+{
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+ if((nch>1)||(nch < 0))return -1;
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+ if(mMsgRecvBuf[nch].size() == 0)return 0;
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+
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+ int nRtn;
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+ nRtn = nCap;
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+ mMutex.lock();
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+ if(nRtn > static_cast<int>( mMsgRecvBuf[nch].size()))nRtn = mMsgRecvBuf[nch].size();
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+ int i;
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+ for(i=0;i<nRtn;i++)
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+ {
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+ memcpy(&pMsg[i],&(mMsgRecvBuf[nch].at(i)),sizeof(basecan_msg));
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+ }
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+
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+ std::vector<basecan_msg>::iterator iter;
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+ iter = mMsgRecvBuf[nch].begin();
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+ for(i=0;i<nRtn;i++)
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+ {
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+ iter = mMsgRecvBuf[nch].erase(iter);
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+ }
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+
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+ mMutex.unlock();
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+
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+ return nRtn;
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+
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+}
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+
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+int nvcan::SetMessage(const int nch, basecan_msg *pMsg)
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+{
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+ if((nch>1)||(nch < 0))return -1;
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+
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+ if(mMsgSendBuf[nch].size() > BUF_SIZE)return -2;
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+
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+ mMutex.lock();
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+ mMsgSendBuf[nch].push_back(*pMsg);
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+ mMutex.unlock();
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+ return 0;
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+}
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+
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+void nvcan::onMsg(bool bCAN, int nR, const char *strres)
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+{
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+ (void)bCAN;
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+ (void)nR;
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+ std::cout<<"msg is: "<<strres<<std::endl;
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+}
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+
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