4.2. Routing Using Individual SCbus Routing Functions

• 4.2.1. Windows Sample Code for Individual SCbus Routing Functions
• 4.2.2. Linux Sample Code for Individual SCbus Routing Functions
• 4.2.3. MS-DOS Sample Code for Individual SCbus Routing Functions
• 4.2.4. OS/2 Sample Code for Individual SCbus Routing Functions

To route the channels using individual SCbus routing functions, perform the following, see Figure 3:

1. Initialize the SC_TSINFO structure with the required information.
2. Get the SC_TSINFO structure that contains the number of the SCbus time slot connected to analog transmit channel 6 of the D/160SC-LS board by issuing an ag_getxmitslot( ) call.
3. Connect analog listen channel 2 of the VFX/40ESC board to analog transmit channel 6 of the D/160SC-LS board by issuing an ag_listen( ) call. This function uses as input the information contained in the SC_TSINFO structure returned by the ag_getxmitslot( ) call of step 2.
4. Get the SC_TSINFO structure that contains the number of the SCbus time slot connected to analog transmit channel 2 of the VFX/40ESC board by issuing an ag_getxmitslot( ) call.
5. Connect analog receive channel 6 of the D/160SC-LS board to analog transmit channel 2 of the VFX/40ESC board by issuing an ag_listen( ) call. This function uses as input the information contained in the SC_TSINFO structure returned by the ag_getxmitslot( ) call of step 4.

When these functions return, full duplex communications between the two analog channels will be established.

4.2.1. Windows Sample Code for Individual SCbus Routing Functions

#include <windows.h>  
#include <errno.h>  
#include <srllib.h>  
#include <dxxxlib.h>  
main()  
{  
   int        chdev1,       /* D/160SC-LS voice channel handle */  
              chdev2;       /* VFX/40ESC voice channel handle  */  
   SC_TSINFO  sc_tsinfo;    /* time slot information structure */  
   long       scts;         /* SCbus time slot                 */  
   /* Open voice channel 2 on board 2 (D/160SC-LS voice channel 6). */  
   if ((chdev1 = dx_open("dxxxB2C2", 0)) == -1) {  
      printf("Cannot open channel dxxxB2C2.   errno = %d", errno);  
      exit(1);  
   }  
   /* Open voice channel 2 on board 5 (VFX/40ESC voice channel 2). */  
   if ((chdev2 = dx_open("dxxxB5C2", 0)) == -1) {  
      printf("Cannot open channel dxxxB5C2.   errno = %d", errno);  
      exit(1);  
   }  
   .  
   . Continue processing.  
   .  
   /***** SCbus routing example. *****/  
   /* Initialize the SC_TSINFO structure with the necessary information. */  
   sc_tsinfo.sc_numts = 1;  
   sc_tsinfo.sc_tsarrayp = &scts;  
   /*  
    * Get the SCbus time slot on which the D/160SC-LS sixth analog  
    * channel is transmitting.  
    */  
   if (ag_getxmitslot(chdev1, &sc_tsinfo) == -1) {  
      printf("ag_getxmitslot() failed: Error message = %s", ATDV_ERRMSGP(chdev1));  
      exit(1);  
   }  
   /*  
    * Make analog channel 2 (of the VFX/40ESC board) listen to the  
    * SCbus time slot that the D/160SC-LS sixth analog channel is  
    * transmitting on.  
    */  
   if (ag_listen(chdev2, &sc_tsinfo) == -1) {  
      printf("ag_listen() failed: Error message = %s", ATDV_ERRMSGP(chdev2));  
      exit(1);  
   }  
   /*  
    * Get the SCbus time slot on which the VFX/40ESC second analog  
    * channel is transmitting.  
    */  
   if (ag_getxmitslot(chdev2, &sc_tsinfo) == -1) {  
      printf("ag_getxmitslot() failed: Error message = %s", ATDV_ERRMSGP(chdev2));  
      exit(1);  
   }  
   /*  
    * Make analog channel 6 (of the D/160SC-LS board) listen to the  
    * SCbus time slot that the VFX/40ESC second analog channel is  
    * transmitting on.  
    */  
   if (ag_listen(chdev1, &sc_tsinfo) == -1) {  
      printf("ag_listen() failed: Error message = %s", ATDV_ERRMSGP(chdev1));  
      exit(1);  
   }  
   .  
   . Continue processing.  
   .  
}




4.2.2. Linux Sample Code for Individual SCbus Routing Functions

#include <srllib.h>  
#include <dxxxlib.h>  
#include <errno.h>  
main()  
{  
   int        chdev1,       /* D/160SC-LS voice channel handle */  
              chdev2;       /* VFX/40ESC voice channel handle  */  
   SC_TSINFO  sc_tsinfo;    /* time slot information structure */  
   long       scts;         /* SCbus time slot                 */  
   /* Open voice channel 2 on board 2 (D/160SC-LS voice channel 6). */  
   if ((chdev1 = dx_open("dxxxB2C2", 0)) == -1) {  
      printf("Cannot open channel dxxxB2C2.   errno = %d", errno);  
      exit(1);  
   }  
   /* Open voice channel 2 on board 5 (VFX/40ESC voice channel 2). */  
   if ((chdev2 = dx_open("dxxxB5C2", 0)) == -1) {  
      printf("Cannot open channel dxxxB5C2.   errno = %d", errno);  
      exit(1);  
   }  
   .  
   . Continue processing.  
   .  
   /***** SCbus routing example. *****/  
   /* Initialize the SC_TSINFO structure with the necessary information. */  
   sc_tsinfo.sc_numts = 1;  
   sc_tsinfo.sc_tsarrayp = &scts;  
   /*  
    * Get the SCbus time slot on which the D/160SC-LS sixth analog  
    * channel is transmitting.  
    */  
   if (ag_getxmitslot(chdev1, &sc_tsinfo) == -1) {  
      printf("ag_getxmitslot() failed: Error message = %s", ATDV_ERRMSGP(chdev1));  
      exit(1);  
   }  
   /*  
    * Make analog channel 2 (of the VFX/40ESC board) listen to the  
    * SCbus time slot that the D/160SC-LS sixth analog channel is  
    * transmitting on.  
    */  
   if (ag_listen(chdev2, &sc_tsinfo) == -1) {  
      printf("ag_listen() failed: Error message = %s", ATDV_ERRMSGP(chdev2));  
      exit(1);  
   }  
   /*  
    * Get the SCbus time slot on which the VFX/40ESC second analog  
    * channel is transmitting.  
    */  
   if (ag_getxmitslot(chdev2, &sc_tsinfo) == -1) {  
      printf("ag_getxmitslot() failed: Error message = %s", ATDV_ERRMSGP(chdev2));  
      exit(1);  
   }  
   /*  
    * Make analog channel 6 (of the D/160SC-LS board) listen to the  
    * SCbus time slot that the VFX/40ESC second analog channel is  
    * transmitting on.  
    */  
   if (ag_listen(chdev1, &sc_tsinfo) == -1) {  
      printf("ag_listen() failed: Error message = %s", ATDV_ERRMSGP(chdev1));  
      exit(1);  
   }  
   .  
   . Continue processing.  
   .  
}




4.2.3. MS-DOS Sample Code for Individual SCbus Routing Functions

#include <stdlib.h>  
#include <stdio.h>  
#include "d40.h"  
#include "d40lib.h"  
#include "vfcns.h"  
int main()  
{  
   int          chdev1 = 6,  /* Sixth voice channel on the D/160SC-LS     */  
                chdev2 = 18, /* Second voice channel on the VFX/40ESC     */  
                rcode;       /* To hold function error return codes.      */  
   unsigned int sc_IRQ = 10, /* SCbus board interrupt (from DIALOGIC.CFG) */  
                num_chans;   /* Location for number of voice channels     */  
                             /*  returned by startsys().                  */  
   SC_TSINFO    sc_tsinfo;   /* time slot information structure           */  
   long         scts;        /* SCbus time slot                           */  
   /***** Initialize system. ******/  
   /* Make sure the voice driver is loaded. */  
   if (getvctr() == 0) {  
      printf("Voice driver is not loaded.");  
      exit(1);  
   }  
   /* Make sure the voice driver is stopped before starting. */  
   stopsys();  
   /* Start the voice driver. */  
   if ((rcode = startsys(sc_IRQ, SM_EVENT, 0, 0, &num_chans)) != E_SUCC) {  
      printf("Could not start voice driver: Error message = %s", d4xerr(rcode));  
      exit(1);  
   }  
   .  
   .  Continue processing.  
   .  
   /***** SCbus routing example. ******/  
   /* Initialize the SC_TSINFO structure with the necessary information. */  
   sc_tsinfo.sc_numts = 1;  
   sc_tsinfo.sc_tsarrayp = &scts;  
   /*  
    * Get the SCbus time slot on which the D/160SC-LS sixth analog  
    * channel is transmitting.  
    */  
   if ((rcode = ag_getxmitslot(chdev1, &sc_tsinfo)) != E_SUCC) {  
      printf("ag_getxmitslot() failed: Error message = %s", d4xerr(rcode));  
      exit(1);  
   }  
   /*  
    * Make analog channel 2 (of the VFX/40ESC board) listen to the  
    * SCbus time slot that the D/160SC-LS sixth analog channel is  
    * transmitting on.  
    */  
   if ((rcode = ag_listen(chdev2, &sc_tsinfo)) != E_SUCC) {  
      printf("ag_listen() failed: Error message = %s", d4xerr(rcode));  
      exit(1);  
   }  
   /*  
    * Get the SCbus time slot on which the VFX/40ESC second analog  
    * channel is transmitting.  
    */  
   if ((rcode = ag_getxmitslot(chdev2, &sc_tsinfo)) != E_SUCC) {  
      printf("ag_getxmitslot() failed: Error message = %s", d4xerr(rcode));  
      exit(1);  
   }  
   /*  
    * Make analog channel 6 (of the D/160SC-LS board) listen to the  
    * SCbus time slot that the VFX/40ESC second analog channel is  
    * transmitting on.  
    */  
   if ((rcode = ag_listen(chdev1, &sc_tsinfo)) != E_SUCC) {  
      printf("ag_listen() failed: Error message = %s", d4xerr(rcode));  
      exit(1);  
   }  
   .  
   .  Continue processing.  
   .  
}




4.2.4. OS/2 Sample Code for Individual SCbus Routing Functions

#define INCL_DOSERRORS  
#include <os2.h>  
#include <stdlib.h>  
#include <stdio.h>  
#include <fcntl.h>  
#include <voxlib.h>  
main()  
{  
   int        chdev1,       /* D/160SC-LS voice channel handle */  
              chdev2;       /* VFX/40ESC voice channel handle  */  
   SC_TSINFO  sc_tsinfo;    /* time slot information structure */  
   long       scts;         /* SCbus time slot                 */  
   /* Open voice channel 2 on board 2 (D/160SC-LS voice channel 6). */  
   if ((chdev1 = dl_open("VOXB1C1", O_RDWR)) == -1) {  
      printf("Cannot open channel VOXB1C1.   dl_errno = %d", dl_errno);  
      exit(1);  
   }  
   /* Open voice channel 2 on board 5 (VFX/40ESC voice channel 2). */  
   if ((chdev2 = dl_open("VOXB4C1", O_RDWR)) == -1) {  
      printf("Cannot open channel VOXB4C1.   dl_errno = %d", dl_errno);  
      exit(1);  
   }  
   .  
   . Continue processing.  
   .  
   /***** SCbus routing example. *****/  
   /* Initialize the SC_TSINFO structure with the necessary information. */  
   sc_tsinfo.sc_numts = 1;  
   sc_tsinfo.sc_tsarrayp = &scts;  
   /*  
    * Get the SCbus time slot on which the D/160SC-LS sixth analog  
    * channel is transmitting.  
    */  
   if (ag_getxmitslot(chdev1, &sc_tsinfo) == -1) {  
      printf("ag_getxmitslot() failed: dl_errno = %d", dl_errno);  
      exit(1);  
   }  
   /*  
    * Make analog channel 2 (of the VFX/40ESC board) listen to the  
    * SCbus time slot that the D/160SC-LS sixth analog channel is  
    * transmitting on.  
    */  
   if (ag_listen(chdev2, &sc_tsinfo) == -1) {  
      printf("ag_listen() failed: dl_errno = %d", dl_errno);  
      exit(1);  
   }  
   /*  
    * Get the SCbus time slot on which the VFX/40ESC second analog  
    * channel is transmitting.  
    */  
   if (ag_getxmitslot(chdev2, &sc_tsinfo) == -1) {  
      printf("ag_getxmitslot() failed: dl_errno = %d", dl_errno);  
      exit(1);  
   }  
   /*  
    * Make analog channel 6 (of the D/160SC-LS board) listen to the  
    * SCbus time slot that the VFX/40ESC second analog channel is  
    * transmitting on.  
    */  
   if (ag_listen(chdev1, &sc_tsinfo) == -1) {  
      printf("ag_listen() failed: dl_errno = %d", dl_errno);  
      exit(1);  
   }  
   .  
   . Continue processing.  
   .  
}

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