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/****************************************************************************
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;
struct joyport_config
{
devcb_write_line interrupt;
int vdp_clock;
};
#define JOYPORT_CONFIG(name) \
const joyport_config(name) =
class joyport_device;
/********************************************************************
Common parent class of all devices attached to the joystick port
********************************************************************/
class joyport_attached_device : public device_t
{
friend class joyport_device;
public:
joyport_attached_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock)
: device_t(mconfig, type, name, tag, owner, clock) { }
protected:
void device_config_complete();
joyport_device* m_joyport;
private:
virtual UINT8 read_dev() =0;
virtual void write_dev(UINT8 data) =0;
};
/********************************************************************
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);
protected:
void device_start() { };
void device_config_complete();
private:
devcb_resolved_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_GENEVE_JOYPORT_ADD( _tag, _conf ) \
MCFG_DEVICE_ADD(_tag, JOYPORT, 0) \
MCFG_DEVICE_CONFIG( _conf ) \
MCFG_DEVICE_SLOT_INTERFACE(joystick_port_gen, "twinjoy", NULL, false)
#define MCFG_TI_JOYPORT4A_ADD( _tag, _conf ) \
MCFG_DEVICE_ADD(_tag, JOYPORT, 0) \
MCFG_DEVICE_CONFIG( _conf ) \
MCFG_DEVICE_SLOT_INTERFACE(joystick_port, "twinjoy", NULL, false)
#define MCFG_TI_JOYPORT4_ADD( _tag, _conf ) \
MCFG_DEVICE_ADD(_tag, JOYPORT, 0) \
MCFG_DEVICE_CONFIG( _conf ) \
MCFG_DEVICE_SLOT_INTERFACE(joystick_port_994, "twinjoy", NULL, false)
#endif /* __JOYPORT__ */
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