Diff: ussd/USSDInterface.cpp

Revision:

99:514e67a69ad6

Parent:

98:1b851249d70b

--- a/ussd/USSDInterface.cpp	Wed Feb 18 15:32:57 2015 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,198 +0,0 @@
-/* USSDInterface.cpp */
-/* Copyright (C) 2012 mbed.org, MIT License
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
- * and associated documentation files (the "Software"), to deal in the Software without restriction,
- * including without limitation the rights to use, copy, modify, merge, publish, distribute,
- * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all copies or
- * substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
- * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#define __DEBUG__ 0
-#ifndef __MODULE__
-#define __MODULE__ "USSDInterface.cpp"
-#endif
-
-#include "core/fwk.h"
-
-#include "USSDInterface.h"
-
-#include <cstdio>
-
-#define DEFAULT_TIMEOUT 10000
-#define USSD_TIMEOUT 15000
-
-USSDInterface::USSDInterface(ATCommandsInterface* pIf) : m_pIf(pIf), m_responseMtx(), m_responseSphre(1), m_result(NULL), m_maxResultLength(0)
-{
-  m_responseSphre.wait(0); //Take ownership of the semaphore
-  DBG("events handler reg ussd");
-  m_pIf->registerEventsHandler(this); //Add us to the unsolicited result codes handlers
-}
-
-int USSDInterface::init()
-{
-  DBG("Initialization done");
-  return OK;
-}
-
-int USSDInterface::send(const char* command, char* result, size_t maxLength)
-{
-  if (strlen(command) > 20) //Prevent buffer overflow XXX shouldn't this be 19 as the AT+CUSD=1,"" is 12
-  {
-    return NET_TOOSMALL;
-  }
-
-  m_responseMtx.lock();
-  m_result = result;
-  m_maxResultLength = maxLength;
-  m_responseMtx.unlock();
-
-  m_responseSphre.wait(0); //Make sure there is not a pending result that needs to be discarded
-
-  DBG("Send USSD command & register for unsolicited result codes");
-  //Send USSD command to the network
-  char cmd[32];
-  std::sprintf(cmd, "AT+CUSD=1,\"%s\"", command);
-  int ret = m_pIf->execute(cmd, this, NULL, DEFAULT_TIMEOUT);
-  if( ret != OK )
-  {
-    return NET_PROTOCOL;
-  }
-  
-  //Did we already get a response (3GPP rev < 6) ?
-
-  //Now wait for response
-  int res = m_responseSphre.wait(USSD_TIMEOUT);
-
-  //Reset data
-  m_responseMtx.lock();
-  m_result = NULL;
-  m_maxResultLength = 0;
-  m_responseMtx.unlock();
-
-  if(res <= 0)
-  {
-    DBG("No result received");
-    ret = m_pIf->executeSimple("AT+CUSD=2", NULL, DEFAULT_TIMEOUT); //Cancel command
-    if( ret != OK )
-    {
-      return NET_PROTOCOL;
-    }
-    return NET_TIMEOUT;
-  }
-
-  DBG("Result received: %s", result);
-
-  return OK;
-}
-
-/*virtual*/ int USSDInterface::onNewATResponseLine(ATCommandsInterface* pInst, const char* line)
-{
-  const char* pSemicol = strchr(line, ':');
-  if( ( (pSemicol - line) != strlen("+CUSD") ) || ( memcmp(line, "+CUSD", strlen("+CUSD")) != 0) )
-  {
-    WARN("Unknown code");
-    return OK;
-  }
-
-  const char* pData = NULL;
-  if( pSemicol != NULL ) //Split the identifier & the result code (if it exists)
-  {
-    pData = pSemicol + 1;
-    if(pData[0]==' ')
-    {
-      pData++; //Suppress whitespace
-    }
-    processResult(pData);
-  }
-  return OK;
-}
-
-/*virtual*/ int USSDInterface::onNewEntryPrompt(ATCommandsInterface* pInst)
-{
-  return OK;
-}
-
-/*virtual*/ bool USSDInterface::isATCodeHandled(const char* atCode) //Is this AT code handled
-{
-  DBG("AT code is %s", atCode);
-  if( strcmp("+CUSD", atCode) == 0 )
-  {
-    return true;
-  }
-
-  DBG("Not handled");
-  return false;
-}
-
-/*virtual*/ void USSDInterface::onDispatchStart()
-{
-
-
-}
-
-/*virtual*/ void USSDInterface::onDispatchStop()
-{
-
-}
-
-/*virtual*/ char* USSDInterface::getEventsEnableCommand()
-{
-  return NULL; //No need to disable events here
-}
-
-/*virtual*/ char* USSDInterface::getEventsDisableCommand()
-{
-  return NULL; //No need to re-enable events here
-}
-
-/*virtual*/ void USSDInterface::onEvent(const char* atCode, const char* evt)
-{
-  if( strcmp("+CUSD", atCode) != 0 )
-  {
-    WARN("Wrong AT Code");
-    return; //Not supported
-  }
-
-  processResult(evt);
-}
-
-void USSDInterface::processResult(const char* data)
-{
-  char* pStart = (char*) strchr(data,'\"');
-  if(pStart==NULL)
-  {
-    WARN("Could not find opening quote");
-    return; //Invalid/incomplete response
-  }
-  pStart++; //Point to first char of response
-  char* pEnd = (char*) strchr(pStart,'\"');
-  if(pEnd==NULL)
-  {
-    WARN("Could not find closing quote");
-    return; //Invalid/incomplete response
-  }
-  m_responseMtx.lock();
-  if(m_maxResultLength == 0) //No pending command
-  {
-    WARN("No pending command");
-    m_responseMtx.unlock();
-    return;
-  }
-  size_t cpyLen = MIN( pEnd - pStart, m_maxResultLength - 1 );
-  DBG("cpyLen: %d",cpyLen);
-  memcpy((void*)m_result, pStart, cpyLen);
-  m_result[cpyLen] = '\0';
-  DBG("Got USSD response: %s", m_result);
-  m_responseMtx.unlock();
-  m_responseSphre.release(); //Signal user thread that response is ready
-}