GPRSModuleNetIf.cpp

00001 
00002 /*
00003 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
00004  
00005 Permission is hereby granted, free of charge, to any person obtaining a copy
00006 of this software and associated documentation files (the "Software"), to deal
00007 in the Software without restriction, including without limitation the rights
00008 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00009 copies of the Software, and to permit persons to whom the Software is
00010 furnished to do so, subject to the following conditions:
00011  
00012 The above copyright notice and this permission notice shall be included in
00013 all copies or substantial portions of the Software.
00014  
00015 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00016 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00017 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00018 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00019 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00020 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
00021 THE SOFTWARE.
00022 */
00023 
00024 #include "netCfg.h"
00025 #if NET_GPRS_MODULE
00026 
00027 #include "GPRSModuleNetIf.h"
00028 
00029 #define __DEBUG
00030 #include "dbg/dbg.h"
00031 
00032 GPRSModuleNetIf::GPRSModuleNetIf(PinName tx, PinName rx, int baud /*= 115200*/) : PPPNetIf(NULL), m_serial(tx, rx)
00033 {
00034   PPPNetIf::m_pIf = new GPRSModem();
00035   m_serial.baud(baud);
00036 }
00037 
00038 GPRSModuleNetIf::~GPRSModuleNetIf()
00039 {
00040   delete PPPNetIf::m_pIf;
00041 }
00042   
00043 PPPErr GPRSModuleNetIf::connect(const char* apn /*= NULL*/, const char* userId /*= NULL*/, const char* password /*= NULL*/) //Connect using GPRS
00044 {
00045 
00046   DBG("Powering on module.\n")
00047   if(!setOn()) //Could not power on module
00048   {
00049     DBG("Could not power on module.\n");
00050     return PPP_MODEM;
00051   }
00052   
00053   //wait(10); //Wait for module to init.
00054 
00055   ATErr atErr;
00056   for(int i=0; i<3; i++)
00057   {
00058     atErr = m_pIf->open(&m_serial); //3 tries
00059     if(!atErr)
00060       break;
00061     DBG("Could not open AT If, trying again.\n");
00062     wait(4);
00063   }
00064     
00065   if(atErr)
00066   {
00067     setOff();
00068     return PPP_MODEM;
00069   }
00070     
00071   DBG("AT If opened.\n");
00072 
00073   PPPErr pppErr;
00074   for(int i=0; i<3; i++)
00075   {  
00076     DBG("Trying to connect.\n");
00077     pppErr = PPPNetIf::GPRSConnect(apn, userId, password);
00078     if(!pppErr)
00079       break;
00080     DBG("Could not connect.\n");
00081     wait(4);
00082   }
00083   if(pppErr)
00084   {
00085     setOff();
00086     return pppErr;
00087   }
00088     
00089   DBG("Connected.\n");
00090   
00091   return PPP_OK;
00092 }
00093 
00094 PPPErr GPRSModuleNetIf::disconnect()
00095 {
00096   DBG("Disconnecting...\n");
00097   PPPErr pppErr = PPPNetIf::disconnect();
00098   if(pppErr)
00099     return pppErr;
00100     
00101   m_pIf->close();
00102   
00103   DBG("Powering off module.\n")
00104   setOff(); //Power off module
00105   
00106   DBG("Off.\n")
00107   
00108   return PPP_OK;
00109 }
00110   
00111 
00112 #endif