src/m_ipmodem.h

   1 ///
   2 /// \file       m_ipmodem.h
   3 ///             Mode class for GPRS modem mode (using endpoints on
   4 ///             modern devices)
   5 ///
   6
   7 /*
   8     Copyright (C) 2008, Net Direct Inc. (http://www.netdirect.ca/)
   9
  10     This program is free software; you can redistribute it and/or modify
  11     it under the terms of the GNU General Public License as published by
  12     the Free Software Foundation; either version 2 of the License, or
  13     (at your option) any later version.
  14
  15     This program is distributed in the hope that it will be useful,
  16     but WITHOUT ANY WARRANTY; without even the implied warranty of
  17     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  18
  19     See the GNU General Public License in the COPYING file at the
  20     root directory of this project for more details.
  21 */
  22
  23 #ifndef __BARRY_M_IPMODEM_H__
  24 #define __BARRY_M_IPMODEM_H__
  25
  26 #include "dll.h"
  27 #include "modem.h"
  28 #include "usbwrap.h"
  29 #include "data.h"
  30 #include "pppfilter.h"
  31 #include <pthread.h>
  32
  33 namespace Barry {
  34
  35 // forward declarations
  36 class Controller;
  37
  38 namespace Mode {
  39
  40 class BXEXPORT IpModem : public Modem
  41 {
  42 public:
  43         typedef void (*DeviceDataCallback)(void *context, const unsigned char *data, int len);
  44
  45 private:
  46         Controller &m_con;
  47         Usb::Device &m_dev;
  48
  49         PppFilter m_filter;                     // used for 0x7e handling
  50
  51         // thread data
  52         volatile bool m_continue_reading;
  53         pthread_t m_modem_read_thread;
  54
  55         // external callbacks
  56         DeviceDataCallback m_callback;
  57         void *m_callback_context;
  58
  59         unsigned char m_session_key[8];         // = { 0x00, 0, 0, 0, 0, 0, 0, 0 };
  60
  61 private:
  62         BXLOCAL bool SendPassword(const char *password = 0);
  63
  64 protected:
  65         static void *DataReadThread(void *userptr);
  66
  67 public:
  68         IpModem(Controller &con, DeviceDataCallback callback, void *callback_context);
  69         ~IpModem();
  70
  71         //////////////////////////////////
  72         // general operations
  73         void Open(const char *password = 0);
  74         void Close();
  75
  76         //////////////////////////////////
  77         // UsbSerData mode - modem specific
  78
  79 //      void Read(Data &data, int timeout); // can be called from separate thread
  80         void Write(const Data &data, int timeout = -1);
  81 };
  82
  83 }} // namespace Barry::Mode
  84
  85 #endif
  86