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// license:LGPL-2.1+
// copyright-holders:Michael Zapf
/****************************************************************************
Joystick port
Now explicitly implemented as a slot device
A joystick port allows for plugging in a single or twin joystick, or
a Mechatronics mouse.
The TI-99/4 also offers an infrared handset, connected to this port. For
this reason we also need an interrupt line.
Michael Zapf
June 2012
*****************************************************************************/
#ifndef __JOYPORT__
#define __JOYPORT__
#include "emu.h"
extern const device_type JOYPORT;
class joyport_device;
/********************************************************************
Common parent class of all devices attached to the joystick port
********************************************************************/
class joyport_attached_device : public device_t
{
public:
joyport_attached_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source)
: device_t(mconfig, type, name, tag, owner, clock, shortname, source) { }
virtual UINT8 read_dev() =0;
virtual void write_dev(UINT8 data) =0;
virtual void pulse_clock() { };
protected:
virtual void device_config_complete();
joyport_device* m_joyport;
};
/********************************************************************
Joystick port
********************************************************************/
class joyport_device : public device_t, public device_slot_interface
{
public:
joyport_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
UINT8 read_port();
void write_port(int data);
void set_interrupt(int state);
void pulse_clock();
template<class _Object> static devcb_base &static_set_int_callback(device_t &device, _Object object) { return downcast<joyport_device &>(device).m_interrupt.set_callback(object); }
protected:
void device_start();
void device_config_complete();
private:
devcb_write_line m_interrupt;
joyport_attached_device* m_connected;
};
SLOT_INTERFACE_EXTERN(joystick_port);
SLOT_INTERFACE_EXTERN(joystick_port_994);
SLOT_INTERFACE_EXTERN(joystick_port_gen);
#define MCFG_JOYPORT_INT_HANDLER( _intcallb ) \
devcb = &joyport_device::static_set_int_callback( *device, DEVCB_##_intcallb );
#define MCFG_GENEVE_JOYPORT_ADD( _tag ) \
MCFG_DEVICE_ADD(_tag, JOYPORT, 0) \
MCFG_DEVICE_SLOT_INTERFACE(joystick_port_gen, "twinjoy", false)
#define MCFG_TI_JOYPORT4A_ADD( _tag ) \
MCFG_DEVICE_ADD(_tag, JOYPORT, 0) \
MCFG_DEVICE_SLOT_INTERFACE(joystick_port, "twinjoy", false)
#define MCFG_TI_JOYPORT4_ADD( _tag ) \
MCFG_DEVICE_ADD(_tag, JOYPORT, 0) \
MCFG_DEVICE_SLOT_INTERFACE(joystick_port_994, "twinjoy", false)
#endif /* __JOYPORT__ */
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