diff options
Diffstat (limited to 'src/devices/bus/midi/midi.h')
-rw-r--r-- | src/devices/bus/midi/midi.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/src/devices/bus/midi/midi.h b/src/devices/bus/midi/midi.h new file mode 100644 index 00000000000..2013e625f91 --- /dev/null +++ b/src/devices/bus/midi/midi.h @@ -0,0 +1,65 @@ +// license:BSD-3-Clause +// copyright-holders:R. Belmont +#ifndef __BUS_MIDI_H__ +#define __BUS_MIDI_H__ + +#include "emu.h" + +#define MCFG_MIDI_PORT_ADD(_tag, _slot_intf, _def_slot) \ + MCFG_DEVICE_ADD(_tag, MIDI_PORT, 0) \ + MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false) + +#define MCFG_MIDI_RX_HANDLER(_devcb) \ + devcb = &midi_port_device::set_rx_handler(*device, DEVCB_##_devcb); + +class device_midi_port_interface; + +class midi_port_device : public device_t, + public device_slot_interface +{ + friend class device_midi_port_interface; + +public: + midi_port_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + virtual ~midi_port_device(); + + // static configuration helpers + template<class _Object> static devcb_base &set_rx_handler(device_t &device, _Object object) { return downcast<midi_port_device &>(device).m_rxd_handler.set_callback(object); } + + DECLARE_WRITE_LINE_MEMBER( write_txd ); + + DECLARE_READ_LINE_MEMBER( rx_r ) { return m_rxd; } + +protected: + virtual void device_start(); + virtual void device_config_complete(); + + int m_rxd; + + devcb_write_line m_rxd_handler; + +private: + device_midi_port_interface *m_dev; +}; + +class device_midi_port_interface : public device_slot_card_interface +{ + friend class midi_port_device; + +public: + device_midi_port_interface(const machine_config &mconfig, device_t &device); + virtual ~device_midi_port_interface(); + + virtual DECLARE_WRITE_LINE_MEMBER( input_txd ) {} + DECLARE_WRITE_LINE_MEMBER( output_rxd ) { m_port->m_rxd = state; m_port->m_rxd_handler(state); } + +protected: + midi_port_device *m_port; +}; + +extern const device_type MIDI_PORT; + +SLOT_INTERFACE_EXTERN(midiin_slot); +SLOT_INTERFACE_EXTERN(midiout_slot); + +#endif |