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#ifndef __NEXTKBD_H__
#define __NEXTKBD_H__
#include "emu.h"
#define MCFG_NEXTKBD_ADD(_tag, _int_change_cb, _int_power_cb, _int_nmi_cb) \
MCFG_DEVICE_ADD(_tag, NEXTKBD, 0) \
downcast<nextkbd_device *>(device)->setup(_int_change_cb, _int_power_cb, _int_nmi_cb);
class nextkbd_device : public device_t {
public:
nextkbd_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
void setup(line_cb_t int_change_cb, line_cb_t _int_power_cb, line_cb_t _int_nmi_cb);
DECLARE_ADDRESS_MAP(amap, 32);
DECLARE_READ32_MEMBER(ctrl_r);
DECLARE_READ32_MEMBER(ctrl2_r);
DECLARE_READ32_MEMBER(data_r);
DECLARE_WRITE32_MEMBER(ctrl_w);
DECLARE_WRITE32_MEMBER(ctrl2_w);
DECLARE_WRITE32_MEMBER(data_w);
bool int_level_get();
DECLARE_INPUT_CHANGED_MEMBER(update);
protected:
virtual void device_start();
virtual void device_reset();
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
virtual ioport_constructor device_input_ports() const;
private:
enum { FLAG_INT = 0x800000, FLAG_DATA = 0x400000, FLAG_RESET = 0x000200 };
enum { FIFO_SIZE = 32 };
enum { KEYDOWN = 0x0080, KEYVALID = 0x8000 };
line_cb_t int_change_cb, int_power_cb, int_nmi_cb;
emu_timer *kbd_timer;
bool nmi_active;
UINT32 control, control2, data, fifo_ir, fifo_iw, fifo_size;
UINT32 fifo[FIFO_SIZE];
UINT16 modifiers_state;
void fifo_push(UINT32 val);
UINT32 fifo_pop();
bool fifo_empty() const;
void send();
};
extern const device_type NEXTKBD;
#endif
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