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// license:BSD-3-Clause
// copyright-holders:R. Belmont
/*********************************************************************
midiin.h
MIDI In image device
*********************************************************************/
#ifndef MAME_DEVICES_IMAGEDEV_MIDIIN_H
#define MAME_DEVICES_IMAGEDEV_MIDIIN_H
#pragma once
#define MCFG_MIDIIN_INPUT_CB(_devcb) \
devcb = &downcast<midiin_device &>(*device).set_input_callback(DEVCB_##_devcb);
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
class midiin_device : public device_t,
public device_image_interface,
public device_serial_interface
{
public:
// construction/destruction
midiin_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
template<class _Object> devcb_base &set_input_callback(_Object object) { return m_input_cb.set_callback(object); }
// image-level overrides
virtual image_init_result call_load() override;
virtual void call_unload() override;
// image device
virtual iodevice_t image_type() const override { return IO_MIDIIN; }
virtual bool is_readable() const override { return 1; }
virtual bool is_writeable() const override { return 0; }
virtual bool is_creatable() const override { return 0; }
virtual bool must_be_loaded() const override { return 0; }
virtual bool is_reset_on_load() const override { return 0; }
virtual const char *file_extensions() const override { return "mid"; }
virtual bool core_opens_image_file() const override { return false; }
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
// serial overrides
virtual void tra_complete() override; // Tx completed sending byte
virtual void tra_callback() override; // Tx send bit
private:
static const int XMIT_RING_SIZE = (8192*4*4);
void xmit_char(uint8_t data);
osd_midi_device *m_midi;
emu_timer *m_timer;
devcb_write_line m_input_cb;
uint8_t m_xmitring[XMIT_RING_SIZE];
int m_xmit_read, m_xmit_write;
bool m_tx_busy;
};
// device type definition
DECLARE_DEVICE_TYPE(MIDIIN, midiin_device)
// device iterator
typedef device_type_iterator<midiin_device> midiin_device_iterator;
#endif // MAME_DEVICES_IMAGEDEV_MIDIIN_H
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