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author | 2012-08-21 10:41:19 +0000 | |
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committer | 2012-08-21 10:41:19 +0000 | |
commit | 7285b359d259b2ae0fdf85096571c386ec8c991a (patch) | |
tree | a027aff57f1a255f9ec6cfd3b68cabe4b6683998 /src/mess/machine/nextkbd.h | |
parent | 67c425e90757876a6716b7867df30c0149912e74 (diff) |
Merge of MESS sources (no whatsnew)
Diffstat (limited to 'src/mess/machine/nextkbd.h')
-rw-r--r-- | src/mess/machine/nextkbd.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/src/mess/machine/nextkbd.h b/src/mess/machine/nextkbd.h new file mode 100644 index 00000000000..b9ec06db77e --- /dev/null +++ b/src/mess/machine/nextkbd.h @@ -0,0 +1,57 @@ +#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); + ioport_constructor device_input_ports() const; + + 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); + +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 |