endpoint.c

h.248源代码

/********************************************************************
 *
 * File:        endpoint.c
 *
 * Description:
 * Endpoint functions.
 *
 * Revisions:
 *   04-may-01    J.H and S.J.M        initial version.
 *
 * Copyright 2003 Netergy Microelectronics, Inc. All rights reserved.
 *
 ********************************************************************/

#include "h248app.h"
#include "stdlib.h"

void EndPointInit(END_POINT *pEndPoint, WORD wChannel)
{
  pthread_mutexattr_t attr;

  APPLOG(LOG_INFO, "EndPointInit():: channel %d\n", wChannel);

  memset(pEndPoint, 0, sizeof(END_POINT));

  pthread_mutexattr_init(&attr);
  pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
  pthread_mutex_init(&(pEndPoint->mMutex), &attr);
  pthread_mutexattr_destroy(&attr);

  pEndPoint->wChannel = wChannel;
}


void _H248LineEvent(END_POINT *pEndPoint, E_H248_EVENTTYPE eEvent)
{
  H248_EVENT xEvent;
  memset(&xEvent, 0, sizeof(H248_EVENT));
  xEvent.eType = eEvent;
  H248InstanceSendEvent(pEndPoint->hInstance, &xEvent);
  _SendRTPTelephoneEvent(pEndPoint, eEvent, START);
}


/**************************************************************************
 * _OffHookEvent
 *   Called when Handset is placed off hook (picked up) 
 **************************************************************************/
void _OffHookEvent(END_POINT *pEndPoint)
{
  _H248LineEvent(pEndPoint, H248_EVENT_L_HD);
}


/**************************************************************************
 * _OnHookEvent()
 *   Called when Handset is placed on hook  
 **************************************************************************/
void _OnHookEvent(END_POINT *pEndPoint)
{
  _H248LineEvent(pEndPoint, H248_EVENT_L_HU);
}


/**************************************************************************
 * _ProcessHandset
 *   Checks for any handset activity and handle the applied signals
 **************************************************************************/
void EndPointProcess(END_POINT *pEndPoint)
{
  unsigned char chKey[20];
  LONG lReturnCode;

  pthread_mutex_lock(&(pEndPoint->mMutex));
  
  lReturnCode = HandsetProcess(pEndPoint->wChannel, chKey);

  switch(lReturnCode) {
    
  case HANDSET_ON_HOOK_EVENT:
    /* On hook. Include application specific hook handling here */
    _H248LineEvent(pEndPoint, H248_EVENT_L_HU);
    break;
    
  case HANDSET_OFF_HOOK_EVENT:
    /* Off hook. Include application specific hook handling here */
    _H248LineEvent(pEndPoint, H248_EVENT_L_HD);
    break; 
    
  case   HANDSET_FLASH_HOOK_EVENT:
    _H248LineEvent(pEndPoint,  H248_EVENT_L_HF);
    break;
      
  case HANDSET_DTMF_START_EVENT:
    /* A key was pressed. Include application specific key handling here */
    switch(chKey[0]) {
      
      /* DTMF digit */		
    case '0': case '1': case '2': case '3': case '4':
    case '5': case '6': case '7': case '8': case '9':
    case '*': case '#':		
	
      /* call the dial function to send the event */
      _H248LineEvent(pEndPoint , chKey[0]);
      break;
    }
    break;

  default:
    break;
  }
  
  pthread_mutex_unlock(&(pEndPoint->mMutex));
}


void msleep(DWORD nMsec)
{
  struct timespec stTime;
  stTime.tv_sec=0;
  stTime.tv_nsec=nMsec;
  nanosleep(&stTime,NULL);

}