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Diffstat (limited to 'src/devices/imagedev/midiin.h')
-rw-r--r-- | src/devices/imagedev/midiin.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/src/devices/imagedev/midiin.h b/src/devices/imagedev/midiin.h new file mode 100644 index 00000000000..d8cc99eb0aa --- /dev/null +++ b/src/devices/imagedev/midiin.h @@ -0,0 +1,79 @@ +// license:BSD-3-Clause +// copyright-holders:R. Belmont +/********************************************************************* + + midiin.h + + MIDI In image device + +*********************************************************************/ + +#ifndef __MIDIIN_H__ +#define __MIDIIN_H__ + + +#define MCFG_MIDIIN_INPUT_CB(_devcb) \ + devcb = &midiin_device::set_input_callback(*device, 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 clock); + + template<class _Object> static devcb_base &set_input_callback(device_t &device, _Object object) { return downcast<midiin_device &>(device).m_input_cb.set_callback(object); } + + // image-level overrides + virtual bool call_load(); + virtual void call_unload(); + + // image device + virtual iodevice_t image_type() const { return IO_MIDIIN; } + virtual bool is_readable() const { return 1; } + virtual bool is_writeable() const { return 0; } + virtual bool is_creatable() const { return 0; } + virtual bool must_be_loaded() const { return 0; } + virtual bool is_reset_on_load() const { return 0; } + virtual const char *file_extensions() const { return "mid"; } + virtual bool core_opens_image_file() const { return FALSE; } + virtual const option_guide *create_option_guide() const { return NULL; } + +protected: + // device-level overrides + virtual void device_start(); + virtual void device_reset(); + + virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr); + virtual void device_config_complete(); + + // serial overrides + virtual void tra_complete(); // Tx completed sending byte + virtual void tra_callback(); // Tx send bit + +private: + static const int XMIT_RING_SIZE = (8192*4*4); + + void xmit_char(UINT8 data); + + osd_midi_device *m_midi; + emu_timer *m_timer; + devcb_write_line m_input_cb; + UINT8 m_xmitring[XMIT_RING_SIZE]; + int m_xmit_read, m_xmit_write; + bool m_tx_busy; +}; + +// device type definition +extern const device_type MIDIIN; + +// device iterator +typedef device_type_iterator<&device_creator<midiin_device>, midiin_device> midiin_device_iterator; + +#endif /* __MIDIIN_H__ */ |