discrete_Multi.c

/******************************************************************************
//
//    File:
//       discrete_Multi.c
//
//       Copyright (c) MAX Technologies Inc. 1988-2017, All Rights Reserved.
//             CONFIDENTIAL AND PROPRIETARY INFORMATION WHICH IS THE
//                         PROPERTY OF MAX TECHNOLOGIES INC.
//
//      This example demonstrates how to set the discretes on the multi module.
//      To make it work properly, you need an external loopback on the multi module, connecting each TX to 
//      its corresponding RX.
//      When there is no error and the multi DIOs are correctly set, no message is displayed.
//      When you have a wrong value on the multi DIOs, a message will pop out.
//      To provoke an error, simply unplug the LB.
//
//       Hardware requirements:
//          - MAXT Flex.
//          - Loopback plugged on the multi port (connecting each TX to its corresponding RX)
//
 *******************************************************************************/

#include "example.h"


uint32 initHandler(HMXF_SERVER server, uint64 deviceIndex, uint64 moduleIndex, uint64 channelIndex, uint64 attrib, uint64* value);

// #define LOCAL

int main(void)
{
uint32 rc;
uint64 moduleCount;
uint64 channelCount;
HMXF_SERVER server;
HMXF_DEVICE device=0;
HMXF_MODULE module=0;
HMXF_CHANNEL rx=0;
HMXF_CHANNEL tx=0;
uint64 i;
uint64 state=0;
char     errorString[200];

   // Connect to services and initialize environment
#ifdef LOCAL
   rc = mxfServerConnect("0.0.0.0", "", "", FALSE, &server);
#else
   rc = mxfServerConnect("192.168.0.1", "admin", "admin", FALSE, &server);
#endif



   // Initializes init callback handler to set all TX and RX channels to DIOs on the multi module
   if (!rc)
      rc = mxfSystemInitAttributeUint64CallbackHandler(server, &initHandler);

   // Initialize MX Foundation library
   if(!rc)
   {
      printf("Starting ...\n");
      rc = mxfSystemInit(server);
   }

   // Get handle of device
   if (!rc)
      rc = mxfSystemDeviceGet(server, 0, &device);

   // Get handle of discrete input channel

   if(!rc)
      rc = mxfDeviceModuleAllGet(device, MXF_MODULE_DIOFIFO_EH, 1, &moduleCount, &module);

   if(!rc)
      rc = mxfModuleChannelAllGet(module, MXF_CLASS_DISCRETE, MXF_SCLASS_RX_CHANNEL, 1, &channelCount, &rx);

   // Get handle of discrete output channel
   if(!rc)
      rc = mxfModuleChannelAllGet(module, MXF_CLASS_DISCRETE, MXF_SCLASS_TX_CHANNEL, 1, &channelCount, &tx);

   // Sets all pin on the Multi module to 1 and reads the value to verify that it was actually set for about 10 seconds
   printf("Setting multi DIOs to 0xFF for 10 seconds. \n");
   printf("Unplug the LB at any time to provoke an error. \n");

   for(i=0; i < 10000 && !rc; i++)
   {
      if(!rc)
         rc = mxfDiscreteChannelWrite(tx, 0xFF00, 0xFF00);
     if(!rc)
        rc = mxfDiscreteChannelRead(rx, 0xFF00, &state);
     if(state != 0xFF00)
        printf("DIOs on the multi module were not correctly set. \r\t");
      mxfSleep(1);
   }
   printf("\n Stopping.\n");

   if(rc)
   {
      if(mxfSystemErrorStringGet(server, rc, sizeof(errorString), errorString))
         sprintf (errorString,"ERROR # 0x%08X", rc);

      printf("%s\n\r", errorString);
   }

   // Unload MX Foundation library
   mxfSystemTerminate(server);

   mxfServerDisconnect(server);

   printf("\nPress a key to terminate\n");
   getchar();

   return rc;
}

uint32 initHandler(HMXF_SERVER server, uint64 deviceIndex, uint64 moduleIndex, uint64 channelIndex, uint64 attrib, uint64* value)
{
HMXF_DEVICE device;
MXF_DEVICE_INFO deviceInfo;
uint32 rc;

   channelIndex=channelIndex;

   // Sets all MXF_MODULE_MULTI_EH first TX and RX channels to DIOs
   if(attrib == KMXF_CHANNEL_CLASS)
   {
      rc = mxfSystemDeviceGet(server, deviceIndex, &device);
      if(!rc)
         rc = mxfDeviceInfoGet(device, &deviceInfo);

      if(!rc && (deviceInfo.modules[moduleIndex].type == MXF_MODULE_MULTI_EH))
      {   
         *value = MXF_CLASS_DISCRETE;
         return TRUE;
      }
   }

   return FALSE;
}