drivers/can_ixxat_win32/ixxat.cpp
author greg
Tue, 19 Feb 2008 14:53:59 +0100
changeset 403 57d5da3b6228
parent 384 83793fc7ce48
child 631 08b6b903f84a
permissions -rw-r--r--
add changes in configure to force xeno --library-dir
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/*
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This file is part of CanFestival, a library implementing CanOpen Stack.
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CanFestival Copyright (C): Edouard TISSERANT and Francis DUPIN
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CanFestival Win32 port Copyright (C) 2007 Leonid Tochinski, ChattenAssociates, Inc.
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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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// pragma based message
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// http://www.codeproject.com/macro/location_pragma.asp
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#define __STR2__(x) #x
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#define __STR1__(x) __STR2__(x)
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#define __LOC2__ __FILE__ "("__STR1__(__LINE__)") : "
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#pragma message("*********************************************************************************")
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#pragma message("  NOTE: IXXAT Win32 drivers and API should be installed in order to build this project!")
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#pragma message(__LOC2__ "See IXXAT.Cpp header for details.")
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#pragma message("*********************************************************************************")
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// IXXAT adapter driver for CanFestival-3 Win32 port
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//
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// Notes
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//--------------------------------------------
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// For building of this project you will need 
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// the following IXXAT API files
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// Vci2.h
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// Vci11un6.lib
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//
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// IXXAT Win32 drivers and API can be downloaded from
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// http://www.ixxat.com/download_vci_en,7547,5873.html
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//
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// Copy Vci2.h & Vci11un6.lib files to can_ixxat_win32 folder of add path to them in Project settings.
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#include <stdio.h>
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extern "C" {
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#include "applicfg.h"
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#include "can_driver.h"
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#include "def.h"
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}
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#include "VCI2.h"
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#include "async_access_que.h"
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#pragma warning(disable:4996)
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#define CAN_NUM 0
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class IXXAT
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   {
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   public:
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      class error
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        {
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        };
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      IXXAT(s_BOARD *board);
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      ~IXXAT();
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      bool send(const Message *m);
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      bool receive(Message *m);
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   private:
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      bool open(const char* board_name, int board_number, const char* baud_rate);
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      bool close();                             
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      void receive_queuedata(UINT16 que_hdl, UINT16 count, VCI_CAN_OBJ* p_obj);
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      // VCI2 handler      
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      static void VCI_CALLBACKATTR message_handler(char *msg_str);
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      static void VCI_CALLBACKATTR receive_queuedata_handler(UINT16 que_hdl, UINT16 count, VCI_CAN_OBJ* p_obj);
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      static void VCI_CALLBACKATTR exception_handler(VCI_FUNC_NUM func_num, INT32 err_code, UINT16 ext_err, char* err_str);
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   private:
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      UINT16 m_BoardHdl;
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      UINT16 m_TxQueHdl;
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      UINT16 m_RxQueHdl;
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      async_access_que<VCI_CAN_OBJ> m_RX_Que;
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      static IXXAT* m_callbackPtr;
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   };
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IXXAT *IXXAT::m_callbackPtr = NULL;
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IXXAT::IXXAT(s_BOARD *board) : m_BoardHdl(0xFFFF),
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                               m_TxQueHdl(0xFFFF),
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                               m_RxQueHdl(0xFFFF)
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   {
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   char busname[100];
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   ::strcpy(busname,board->busname);
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   char board_name[100];      
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   long board_number = 0;   
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   char *ptr = ::strrchr(busname,':');
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   if (ptr != 0)
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      {
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      *ptr = 0;
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      ::strcpy(board_name,busname);
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      if (++ptr - busname < (int)::strlen(board->busname))
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         board_number = ::atoi(ptr);
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      }
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   if (!open(board_name,board_number,board->baudrate))
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      {
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      close();
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      throw error();
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      }
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   m_callbackPtr = this;
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   }
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IXXAT::~IXXAT()
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   {
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   close();
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   m_callbackPtr = 0;
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   }
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bool IXXAT::send(const Message *m)
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   {
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   if (m_BoardHdl == 0xFFFF)
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      return true; // true -> NOT OK
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   long res = VCI_ERR;
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   if (m->rtr == NOT_A_REQUEST)
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      res = VCI_TransmitObj(m_BoardHdl, m_TxQueHdl, m->cob_id, m->len, const_cast<unsigned char*>(m->data));
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   else
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      res = VCI_RequestObj(m_BoardHdl, m_TxQueHdl, m->cob_id, m->len);
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   return (res == false); // false -> OK 
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   }
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bool IXXAT::receive(Message *m)
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   {
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   if (m_BoardHdl == 0xFFFF)
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      return false;
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   VCI_CAN_OBJ obj;
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   if (m_RX_Que.extract_top(obj))
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      {
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      m->cob_id = obj.id;
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      m->len = obj.len;
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      m->rtr = (obj.rtr == VCI_RX_BUF) ? NOT_A_REQUEST : REQUEST;
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      if (m->rtr == NOT_A_REQUEST)
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         ::memcpy(m->data, obj.a_data, m->len);
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      return true;
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      }
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   return false;
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   }
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bool IXXAT::open(const char* board_name, int board_number, const char* baud_rate)
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   {
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   // check, if baudrate is supported
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   struct IXXAT_baud_rate_param 
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     { 
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     UINT8  bt0; 
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     UINT8  bt1;
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     };
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   struct IXXAT_look_up_table
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     {
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     char baud_rate[20];
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     IXXAT_baud_rate_param bt;
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     };
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   static const IXXAT_look_up_table br_lut[] = {
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               {"10K",{VCI_10KB}},
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               {"20K",{VCI_20KB}},
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               {"50K",{VCI_50KB}},
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               {"100K",{VCI_100KB}},
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               {"125K",{VCI_125KB}},
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               {"250K",{VCI_250KB}},
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               {"500K",{VCI_500KB}},
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               {"800K",{VCI_800KB}},
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               {"1M",{VCI_1000KB}}
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               };
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   static const long br_lut_size = sizeof (br_lut)/sizeof(IXXAT_look_up_table);
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   int index;
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   for (index = 0; index < br_lut_size; ++index)
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       {
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       if (::strcmp(br_lut[index].baud_rate,baud_rate)==0)
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          break;
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       }
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   if (index == br_lut_size)    
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      return false;
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   // close existing board   
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   close();
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   // init IXXAT board
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   unsigned long board_type = VCI_GetBrdTypeByName(const_cast<char*>(board_name));
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   long res = VCI2_PrepareBoard( board_type,                  // board type
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                                   board_number,              // unique board index
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                                   NULL,                      // pointer to buffer for additional info 
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                                   0,                         // length of additional info buffer
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                                   message_handler,           // pointer to msg-callbackhandler
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                                   receive_queuedata_handler, // pointer to receive-callbackhandler
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                                   exception_handler);        // pointer to exception-callbackhandler
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   if (res < 0)
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      return false;
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   m_BoardHdl = (UINT16)res;
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   VCI_ResetBoard(m_BoardHdl);
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   // init CAN parameters
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   // initialize CAN-Controller
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   res = VCI_InitCan(m_BoardHdl, CAN_NUM, br_lut[index].bt.bt0,br_lut[index].bt.bt1, VCI_11B);
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   //  definition of Acceptance-Mask (define to receive all IDs)
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   res = VCI_SetAccMask(m_BoardHdl, CAN_NUM, 0x0UL, 0x0UL);
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   // definition of Transmit Queue
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   res = VCI_ConfigQueue(m_BoardHdl, CAN_NUM, VCI_TX_QUE, 100 , 0, 0, 0,  &m_TxQueHdl);
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   //  definition of Receive Queue (interrupt mode)
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   res = VCI_ConfigQueue(m_BoardHdl, CAN_NUM, VCI_RX_QUE, 50, 1, 0, 100,  &m_RxQueHdl);
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   //  assign the all IDs to the Receive Queue
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   res = VCI_AssignRxQueObj(m_BoardHdl, m_RxQueHdl ,VCI_ACCEPT, 0, 0) ;
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   //  And now start the CAN
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   res = VCI_StartCan(m_BoardHdl, CAN_NUM);
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   return true;
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   }
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bool IXXAT::close()
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   {
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   if (m_BoardHdl == 0xFFFF)
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      return true;
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   VCI_ResetBoard(m_BoardHdl);   
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   VCI_CancelBoard(m_BoardHdl);
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   m_BoardHdl = 
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   m_TxQueHdl = 
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   m_RxQueHdl = 0xFFFF;
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   return true;
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   }
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void IXXAT::receive_queuedata(UINT16 que_hdl, UINT16 count, VCI_CAN_OBJ *p_obj)
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   {
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   for (int i = 0; i < count; ++i)
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       m_RX_Que.append(p_obj[i]); // can packet
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   }
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void VCI_CALLBACKATTR IXXAT::receive_queuedata_handler(UINT16 que_hdl, UINT16 count, VCI_CAN_OBJ *p_obj)
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  {
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   if (m_callbackPtr != NULL)
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      m_callbackPtr->receive_queuedata(que_hdl, count, p_obj);
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  }
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void VCI_CALLBACKATTR IXXAT::message_handler(char *msg_str)
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  {
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  char buf[200];
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  ::sprintf(buf,"IXXAT Message: [%s]\n", msg_str);
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  ::OutputDebugString(buf);
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  }
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void VCI_CALLBACKATTR IXXAT::exception_handler(VCI_FUNC_NUM func_num, INT32 err_code, UINT16 ext_err, char* err_str)
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  {
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  static const char* Num2Function[] =
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    {
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    "VCI_Init",
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    "VCI_Searchboard",
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    "VCI_Prepareboard",
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    "VCI_Cancel_board",
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    "VCI_Testboard",
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    "VCI_ReadBoardInfo",
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    "VCI_ReadBoardStatus",
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    "VCI_Resetboard",
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    "VCI_ReadCANInfo",
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    "VCI_ReadCANStatus",
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    "VCI_InitCAN",
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    "VCI_SetAccMask",
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    "VCI_ResetCAN",
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    "VCI_StartCAN",
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    "VCI_ResetTimeStamps",
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    "VCI_ConfigQueue",
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    "VCI_AssignRxQueObj",
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    "VCI_ConfigBuffer",
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    "VCI_ReconfigBuffer",
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    "VCI_ConfigTimer",
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    "VCI_ReadQueStatus",
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    "VCI_ReadQueObj",
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    "VCI_ReadBufStatus",
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    "VCI_ReadBufData",
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    "VCI_TransmitObj",
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    "VCI_RequestObj",
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    "VCI_UpdateBufObj",
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    "VCI_CciReqData"
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    };
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  char buf[200];
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  ::sprintf(buf, "IXXAT Exception: %s (%i / %u) [%s]\n", Num2Function[func_num], err_code, ext_err, err_str);
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  ::OutputDebugString(buf);
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  }
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//------------------------------------------------------------------------
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extern "C"
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   UNS8 canReceive_driver(CAN_HANDLE inst, Message *m)
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   {
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   return (UNS8)reinterpret_cast<IXXAT*>(inst)->receive(m);
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   }
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extern "C"
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   UNS8 canSend_driver(CAN_HANDLE inst, Message *m)
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   {
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   return (UNS8)reinterpret_cast<IXXAT*>(inst)->send(m);
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   }
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extern "C"
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   CAN_HANDLE canOpen_driver(s_BOARD *board)
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   {
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   try
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      {
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      return new IXXAT(board);
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      }
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   catch (IXXAT::error&)
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      {
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      return 0;
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      }
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   }
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extern "C"
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   int canClose_driver(CAN_HANDLE inst)
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   {
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   delete reinterpret_cast<IXXAT*>(inst);
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   return 1;
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   }
384
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extern "C"
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   UNS8 canChangeBaudRate_driver( CAN_HANDLE fd, char* baud)
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	{
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	//printf("canChangeBaudRate not yet supported by this driver\n");
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	return 0;
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	}