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// license:GPL-2.0+
// copyright-holders:Dirk Best
/**********************************************************************
EPSON SIO port emulation
**********************************************************************/
#ifndef MAME_BUS_EPSON_SIO_EPSON_SIO_H
#define MAME_BUS_EPSON_SIO_EPSON_SIO_H
#pragma once
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class device_epson_sio_interface;
// supported devices
void epson_sio_devices(device_slot_interface &device);
class epson_sio_device : public device_t, public device_single_card_slot_interface<device_epson_sio_interface>
{
public:
// construction/destruction
epson_sio_device(machine_config const &mconfig, char const *tag, device_t *owner, char const *dflt)
: epson_sio_device(mconfig, tag, owner)
{
option_reset();
epson_sio_devices(*this);
set_default_option(dflt);
set_fixed(false);
}
epson_sio_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock = XTAL());
virtual ~epson_sio_device();
// callbacks
auto rx_callback() { return m_write_rx.bind(); }
auto pin_callback() { return m_write_pin.bind(); }
// called from owner
DECLARE_WRITE_LINE_MEMBER( tx_w );
DECLARE_WRITE_LINE_MEMBER( pout_w );
// called from subdevice
DECLARE_WRITE_LINE_MEMBER( rx_w ) { m_write_rx(state); }
DECLARE_WRITE_LINE_MEMBER( pin_w ) { m_write_pin(state); }
protected:
// device-level overrides
virtual void device_start() override;
device_epson_sio_interface *m_cart;
private:
devcb_write_line m_write_rx;
devcb_write_line m_write_pin;
};
// class representing interface-specific live sio device
class device_epson_sio_interface : public device_interface
{
public:
// construction/destruction
virtual ~device_epson_sio_interface();
virtual void tx_w(int state) { }
virtual void pout_w(int state) { }
protected:
device_epson_sio_interface(const machine_config &mconfig, device_t &device);
epson_sio_device *m_slot;
};
// device type definition
DECLARE_DEVICE_TYPE(EPSON_SIO, epson_sio_device)
#endif // MAME_BUS_EPSON_SIO_EPSON_SIO_H
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