diff -r c6ff23a48232 -r 9b5bb1dcb4f5 drivers/can_peak_win32/can_peak_win32.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/drivers/can_peak_win32/can_peak_win32.c Tue Jun 20 22:43:37 2006 +0200 @@ -0,0 +1,166 @@ +/* +This file is part of CanFestival, a library implementing CanOpen Stack. + +Copyright (C): Edouard TISSERANT and Francis DUPIN + +See COPYING file for copyrights details. + +This library is free software; you can redistribute it and/or +modify it under the terms of the GNU Lesser General Public +License as published by the Free Software Foundation; either +version 2.1 of the License, or (at your option) any later version. + +This library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public +License along with this library; if not, write to the Free Software +Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#include +#include +#include +#include +#include /* for NULL */ +#include +#include +#include +#include +#include + +/* driver pcan pci for Peak board */ +//#include "libpcan.h" +//#include "pcan.h" + +#include +#include "timer.h" +#include "can_driver.h" +#include "timers_driver.h" + +#define MAX_NB_CAN_PORTS 1 + +typedef struct { + char used; + TASK_HANDLE receiveTask; + CO_Data* d; +} CANPort; + +CANPort canports[MAX_NB_CAN_PORTS] = {{0,},}; + +// Define for rtr CAN message +#define CAN_INIT_TYPE_ST_RTR MSGTYPE_STANDARD | MSGTYPE_RTR + +/*********functions which permit to communicate with the board****************/ +UNS8 canReceive(CAN_HANDLE fd0, Message *m) +{ + UNS8 data; + TPCANMsg peakMsg; + if ((errno = CAN_Read(& peakMsg))) { // Blocks until no new message or error. + perror("!!! Peak board : error of reading. (from f_can_receive function) \n"); + return 1; + } + m->cob_id.w = peakMsg.ID; + if (peakMsg.MSGTYPE == CAN_INIT_TYPE_ST) /* bits of MSGTYPE_*/ + m->rtr = 0; + else + m->rtr = 1; + m->len = peakMsg.LEN; /* count of data bytes (0..8) */ + for(data = 0 ; data < peakMsg.LEN ; data++) + m->data[data] = peakMsg.DATA[data]; /* data bytes, up to 8 */ + + return 0; +} + +void canReceiveLoop(CAN_HANDLE fd0) +{ + CO_Data* d = ((CANPort*)fd0)->d; + Message m; + while (1) { + if(!canReceive(fd0, &m)) + { + EnterMutex(); + canDispatch(d, &m); + LeaveMutex(); + }else{ +// printf("canReceive returned error\n"); + break; + } + } +} + +/***************************************************************************/ +UNS8 canSend(CAN_HANDLE fd0, Message *m) +{ + UNS8 data; + TPCANMsg peakMsg; + peakMsg.ID=m -> cob_id.w; /* 11/29 bit code */ + if(m->rtr == 0) + peakMsg.MSGTYPE = CAN_INIT_TYPE_ST; /* bits of MSGTYPE_*/ + else { + peakMsg.MSGTYPE = CAN_INIT_TYPE_ST_RTR; /* bits of MSGTYPE_*/ + } + peakMsg.LEN = m->len; + /* count of data bytes (0..8) */ + for(data = 0 ; data < m->len; data ++) + peakMsg.DATA[data] = m->data[data]; /* data bytes, up to 8 */ + + if((errno = CAN_Write(& peakMsg))) { + perror("!!! Peak board : error of writing. (from canSend function) \n"); + return 1; + } + return 0; + +} + +/***************************************************************************/ +CAN_HANDLE canOpen(s_BOARD *board) +{ + HANDLE fd0 = NULL; + char busname[64]; + char* pEnd; + int i; + + for(i=0; i < MAX_NB_CAN_PORTS; i++) + { + if(!canports[i].used) + break; + } + if(canports[i].used) + { + perror("can_peak_win32.c: no more can port available with this pcan library\n"); + perror("can_peak_win32.c: please link another executable with another pcan lib\n"); + return NULL; + } +// if(strtol(board->busname, &pEnd,0) >= 0) +// { +// sprintf(busname,"/dev/pcan%s",board->busname); +// fd0 = LINUX_CAN_Open(busname, O_RDWR); +// } + + if (i==MAX_NB_CAN_PORTS || fd0 == NULL) + { + fprintf (stderr, "Open failed.\n"); + return (CAN_HANDLE)NULL; + } + + CAN_Init(board->baudrate, CAN_INIT_TYPE_ST); + + canports[i].used = 1; + + canports[i].d = board->d; + CreateReceiveTask((CANPort*) &canports[i], &canports[i].receiveTask); + + return (CANPort*) &canports[i]; +} + +/***************************************************************************/ +int canClose(CAN_HANDLE fd0) +{ + CAN_Close(); + ((CANPort*)fd0)->used = 0; + WaitReceiveTaskEnd(&((CANPort*)fd0)->receiveTask); + return 0; +}