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/*
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Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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/** \file
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PPP Generic network interface header file
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*/
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//This is a backend for PPP, using lwIP
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#ifndef PPPNETIF_H
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#define PPPNETIF_H
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#include "mbed.h"
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//For now, only a GPRS Modem is supported,
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//but we could easily split this class into a base class + two derived classes
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// (PPP over GPRS + PPP over Serial Modem)
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#include "drv/gprs/GPRSModem.h"
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#include "if/lwip/LwipNetIf.h"
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///PPP connection error codes
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enum PPPErr
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{
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__PPP_MIN = -0xFFFF,
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PPP_MODEM, ///<AT error returned
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PPP_NETWORK, ///<Network is down
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PPP_PROTOCOL, ///<PPP Protocol error
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PPP_CLOSED, ///<Connection is closed
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PPP_OK = 0 ///<Success
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};
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enum PPPStatus
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{
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PPP_CONNECTING,
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PPP_CONNECTED,
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PPP_DISCONNECTED,
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};
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class PPPNetIf : public LwipNetIf
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{
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public:
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PPPNetIf(GPRSModem* pIf);
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virtual ~PPPNetIf();
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#if 0
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PPPErr open(Serial* pSerial);
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#endif
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PPPErr GPRSConnect(const char* apn, const char* userId, const char* password); //Connect using GPRS
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PPPErr ATConnect(const char* number); //Connect using a "classic" voice modem or GSM
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virtual void poll();
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PPPErr disconnect();
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#if 0
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PPPErr close();
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#endif
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protected:
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GPRSModem* m_pIf;
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private:
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void pppCallback(int errCode, void *arg);
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static void sPppCallback(void *ctx, int errCode, void *arg) //Callback from ppp.c
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{ return ((PPPNetIf*)ctx)->pppCallback(errCode, arg); }
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bool m_connected;
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/*bool m_open;*/
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volatile PPPStatus m_status;
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volatile int m_fd; //PPP Session descriptor
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//int m_id;
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uint8_t* m_buf;
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};
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#endif
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Daniel Peter