Diff: NetServices/if/ppp/PPPNetIf.h

Revision:

0:f30e2135b0db

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/NetServices/if/ppp/PPPNetIf.h	Wed Feb 09 13:57:49 2011 +0000
@@ -0,0 +1,100 @@
+
+/*
+Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
+ 
+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.
+*/
+
+/** \file
+PPP Generic network interface header file
+*/
+
+//This is a backend for PPP, using lwIP
+
+#ifndef PPPNETIF_H
+#define PPPNETIF_H
+
+#include "mbed.h"
+
+//For now, only a GPRS Modem is supported, 
+//but we could easily split this class into a base class + two derived classes
+// (PPP over GPRS + PPP over Serial Modem)
+#include "drv/gprs/GPRSModem.h"
+#include "if/lwip/LwipNetIf.h"
+
+///PPP connection error codes
+enum PPPErr
+{
+  __PPP_MIN = -0xFFFF,
+  PPP_MODEM, ///<AT error returned
+  PPP_NETWORK, ///<Network is down
+  PPP_PROTOCOL, ///<PPP Protocol error
+  PPP_CLOSED, ///<Connection is closed
+  PPP_OK = 0 ///<Success
+};
+
+enum PPPStatus
+{
+  PPP_CONNECTING,
+  PPP_CONNECTED,
+  PPP_DISCONNECTED,
+};
+
+class PPPNetIf : public LwipNetIf
+{
+public:
+  PPPNetIf(GPRSModem* pIf);
+  virtual ~PPPNetIf();
+  
+  #if 0
+  PPPErr open(Serial* pSerial);
+  #endif
+  
+  PPPErr GPRSConnect(const char* apn, const char* userId, const char* password); //Connect using GPRS
+  PPPErr ATConnect(const char* number); //Connect using a "classic" voice modem or GSM
+  
+  virtual void poll();
+  
+  PPPErr disconnect();
+  
+  #if 0
+  PPPErr close();
+  #endif
+  
+protected:
+  GPRSModem* m_pIf;
+  
+private:
+  void pppCallback(int errCode, void *arg);
+  
+  static void sPppCallback(void *ctx, int errCode, void *arg) //Callback from ppp.c
+  { return ((PPPNetIf*)ctx)->pppCallback(errCode, arg); }
+  
+  bool m_connected;
+  /*bool m_open;*/
+  volatile PPPStatus m_status;
+  volatile int m_fd; //PPP Session descriptor
+  
+  //int m_id;
+  
+  uint8_t* m_buf;
+
+};
+
+#endif