mirror of
https://github.com/holub/mame
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97 lines
2.5 KiB
C++
97 lines
2.5 KiB
C++
// license:GPL-2.0+
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// copyright-holders:Dirk Best
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/**********************************************************************
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EPSON SIO port emulation
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**********************************************************************/
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#pragma once
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#ifndef __EPSON_SIO_H__
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#define __EPSON_SIO_H__
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#include "emu.h"
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//**************************************************************************
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// INTERFACE CONFIGURATION MACROS
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//**************************************************************************
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#define MCFG_EPSON_SIO_ADD(_tag, _def_slot) \
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MCFG_DEVICE_ADD(_tag, EPSON_SIO, 0) \
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MCFG_DEVICE_SLOT_INTERFACE(epson_sio_devices, _def_slot, false)
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#define MCFG_EPSON_SIO_RX(_rx) \
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downcast<epson_sio_device *>(device)->set_rx_callback(DEVCB_##_rx);
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#define MCFG_EPSON_SIO_PIN(_pin) \
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downcast<epson_sio_device *>(device)->set_pin_callback(DEVCB_##_pin);
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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class device_epson_sio_interface;
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class epson_sio_device : public device_t,
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public device_slot_interface
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{
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public:
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// construction/destruction
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epson_sio_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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virtual ~epson_sio_device();
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// callbacks
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template<class _rx> void set_rx_callback(_rx rx) { m_write_rx.set_callback(rx); }
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template<class _pin> void set_pin_callback(_pin pin) { m_write_pin.set_callback(pin); }
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// called from owner
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DECLARE_WRITE_LINE_MEMBER( tx_w );
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DECLARE_WRITE_LINE_MEMBER( pout_w );
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// called from subdevice
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DECLARE_WRITE_LINE_MEMBER( rx_w ) { m_write_rx(state); }
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DECLARE_WRITE_LINE_MEMBER( pin_w ) { m_write_pin(state); }
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protected:
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// device-level overrides
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virtual void device_start();
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virtual void device_reset();
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device_epson_sio_interface *m_cart;
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private:
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devcb_write_line m_write_rx;
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devcb_write_line m_write_pin;
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};
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// class representing interface-specific live sio device
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class device_epson_sio_interface : public device_slot_card_interface
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{
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public:
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// construction/destruction
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device_epson_sio_interface(const machine_config &mconfig, device_t &device);
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virtual ~device_epson_sio_interface();
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virtual void tx_w(int state) { };
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virtual void pout_w(int state) { };
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protected:
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epson_sio_device *m_slot;
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};
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// device type definition
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extern const device_type EPSON_SIO;
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// supported devices
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SLOT_INTERFACE_EXTERN( epson_sio_devices );
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#endif // __EPSON_SIO_H__
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