diff options
Diffstat (limited to 'src/devices/bus/x68k/x68k_midi.h')
-rw-r--r-- | src/devices/bus/x68k/x68k_midi.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/devices/bus/x68k/x68k_midi.h b/src/devices/bus/x68k/x68k_midi.h new file mode 100644 index 00000000000..e6c467620a8 --- /dev/null +++ b/src/devices/bus/x68k/x68k_midi.h @@ -0,0 +1,48 @@ +// license:BSD-3-Clause +// copyright-holders:Barry Rodewald +/* + * x68k_midi.h + * + * X68000 MIDI expansion card + * + */ + +#ifndef MAME_BUS_X68K_X68K_MIDI_H +#define MAME_BUS_X68K_X68K_MIDI_H + +#pragma once + +#include "machine/ym3802.h" +#include "x68kexp.h" + +#define MIDI_IRQ_VECTOR 0x80 // does not seem to use the YM3802's vector registers + +class x68k_midi_device : public device_t, + public device_x68k_expansion_card_interface +{ +public: + // construction/destruction + x68k_midi_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + + // optional information overrides + virtual void device_add_mconfig(machine_config &config) override; + + DECLARE_READ8_MEMBER(x68k_midi_reg_r); + DECLARE_WRITE8_MEMBER(x68k_midi_reg_w); + +protected: + // device-level overrides + virtual void device_start() override; + virtual void device_reset() override; + +private: + x68k_expansion_slot_device *m_slot; + required_device<ym3802_device> m_midi; + void irq_w(int state); +}; + + +// device type definition +DECLARE_DEVICE_TYPE(X68K_MIDI, x68k_midi_device) + +#endif // MAME_BUS_X68K_X68K_MIDI_H |