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) 2005-2007, 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 "usbwrap.h"
  28 #include "data.h"
  29 #include <pthread.h>
  30
  31 namespace Barry {
  32
  33 // forward declarations
  34 class Controller;
  35
  36 namespace Mode {
  37
  38 class BXEXPORT IpModem
  39 {
  40 public:
  41         typedef void (*DeviceDataCallback)(void *context, const unsigned char *data, int len);
  42
  43 private:
  44         Controller &m_con;
  45         Usb::Device &m_dev;
  46
  47         Data m_writeBuf;                        // used for 0x7e handling
  48
  49         // thread data
  50         volatile bool m_continue_reading;
  51         pthread_t m_modem_read_thread;
  52
  53         // write flags
  54         bool m_ppp_mode;
  55         unsigned char m_last;
  56
  57         // external callbacks
  58         DeviceDataCallback m_callback;
  59         void *m_callback_context;
  60
  61 protected:
  62         static void *DataReadThread(void *userptr);
  63
  64 public:
  65         IpModem(Controller &con, DeviceDataCallback callback, void *callback_context);
  66         ~IpModem();
  67
  68         //////////////////////////////////
  69         // general operations
  70         void Open();
  71
  72         //////////////////////////////////
  73         // UsbSerData mode - modem specific
  74
  75 //      void Read(Data &data, int timeout); // can be called from separate thread
  76         void Write(const Data &data, int timeout = -1);
  77 };
  78
  79 }} // namespace Barry::Mode
  80
  81 #endif
  82