/*
 * Copyright 2003-2006, Waldemar Kornewald <wkornew@gmx.net>
 * Distributed under the terms of the MIT License.
 */
#ifndef MODEM_DEVICE__H
#define MODEM_DEVICE__H


#include "Modem.h"

#include <KPPPDevice.h>


enum modem_state {
        INITIAL,
                // the same as IsDown() == true
        TERMINATING,
        DIALING,
        OPENED
                // the same as IsUp() == true
};


class ACFCHandler;

class ModemDevice : public KPPPDevice {
        public:
                ModemDevice(KPPPInterface& interface, driver_parameter *settings);
                virtual ~ModemDevice();

                const char *PortName() const
                        { return fPortName; }
                int32 Handle() const
                        { return fHandle; }
                                // returns file handle for modem driver

                const char *InitString() const
                        { return fInitString; }
                const char *DialString() const
                        { return fDialString; }

                virtual status_t InitCheck() const;

                virtual bool Up();
                virtual bool Down();

                void SetSpeed(uint32 bps);
                virtual uint32 InputTransferRate() const;
                virtual uint32 OutputTransferRate() const;
                        // this is around 60% of the input transfer rate

                virtual uint32 CountOutputBytes() const;

                void OpenModem();
                void CloseModem();

                // notifications:
                void FinishedDialing();
                void FailedDialing();
                void ConnectionLost();

                virtual status_t Send(net_buffer *packet, uint16 protocolNumber = 0);
                status_t DataReceived(uint8 *buffer, uint32 length);
                        // this will put the data into an mbuf and call Receive()
                virtual status_t Receive(net_buffer *packet, uint16 protocolNumber = 0);

        private:
                const char *fPortName, *fInitString, *fDialString;
                int32 fHandle;
                        // file handle for modem driver

                thread_id fWorkerThread;

                uint32 fInputTransferRate, fOutputTransferRate;
                uint32 fOutputBytes;

                modem_state fState;

                ACFCHandler *fACFC;
};


#endif