dosbox-wii/src/hardware/serialport/directserial.h
2021-02-06 16:06:31 +01:00

71 lines
1.8 KiB
C++

/*
* Copyright (C) 2002-2019 The DOSBox Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
// include guard
#ifndef DOSBOX_DIRECTSERIAL_WIN32_H
#define DOSBOX_DIRECTSERIAL_WIN32_H
#include "dosbox.h"
#if C_DIRECTSERIAL
#define DIRECTSERIAL_AVAILIBLE
#include "serialport.h"
#include "libserial.h"
class CDirectSerial : public CSerial {
public:
CDirectSerial(Bitu id, CommandLine* cmd);
~CDirectSerial();
void updatePortConfig(Bit16u divider, Bit8u lcr);
void updateMSR();
void transmitByte(Bit8u val, bool first);
void setBreak(bool value);
void setRTSDTR(bool rts, bool dtr);
void setRTS(bool val);
void setDTR(bool val);
void handleUpperEvent(Bit16u type);
private:
COMPORT comport;
Bitu rx_state;
#define D_RX_IDLE 0
#define D_RX_WAIT 1
#define D_RX_BLOCKED 2
#define D_RX_FASTWAIT 3
Bitu rx_retry; // counter of retries (every millisecond)
Bitu rx_retry_max; // how many POLL_EVENTS to wait before causing
// an overrun error.
bool doReceive();
#if SERIAL_DEBUG
bool dbgmsg_poll_block;
bool dbgmsg_rx_block;
#endif
};
#endif // C_DIRECTSERIAL
#endif // include guard