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// license:???
// copyright-holders:???
/***************************************************************************
PC-9801 Keyboard simulation
***************************************************************************/
#pragma once
#ifndef __PC9801_KBDDEV_H__
#define __PC9801_KBDDEV_H__
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_PC9801_KBD_IRQ_CALLBACK(_write) \
devcb = &pc9801_kbd_device::set_irq_wr_callback(*device, DEVCB_##_write);
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> pc9801_kbd_device
class pc9801_kbd_device : public device_t
{
public:
// construction/destruction
pc9801_kbd_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
template<class _Object> static devcb_base &set_irq_wr_callback(device_t &device, _Object object) { return downcast<pc9801_kbd_device &>(device).m_write_irq.set_callback(object); }
virtual ioport_constructor device_input_ports() const;
// I/O operations
DECLARE_WRITE8_MEMBER( tx_w );
DECLARE_READ8_MEMBER( rx_r );
DECLARE_INPUT_CHANGED_MEMBER(key_stroke);
protected:
// device-level overrides
virtual void device_validity_check(validity_checker &valid) const;
virtual void device_start();
virtual void device_reset();
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
devcb_write_line m_write_irq;
static const device_timer_id RX_TIMER = 1;
emu_timer * m_rxtimer;
UINT8 m_rx_buf[0x80];
UINT8 m_keyb_tx;
UINT8 m_keyb_rx;
};
// device type definition
extern const device_type PC9801_KBD;
//**************************************************************************
// GLOBAL VARIABLES
//**************************************************************************
#endif
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