diff options
Diffstat (limited to 'src/emu/bus/snes_ctrl/miracle.h')
-rw-r--r-- | src/emu/bus/snes_ctrl/miracle.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/src/emu/bus/snes_ctrl/miracle.h b/src/emu/bus/snes_ctrl/miracle.h new file mode 100644 index 00000000000..383edfbbfda --- /dev/null +++ b/src/emu/bus/snes_ctrl/miracle.h @@ -0,0 +1,72 @@ +/********************************************************************** + + Nintendo Entertainment System - Miracle Piano Keyboard + + Copyright MESS Team. + Visit http://mamedev.org for licensing and usage restrictions. + +**********************************************************************/ + +#pragma once + +#ifndef __SNES_MIRACLE__ +#define __SNES_MIRACLE__ + + +#include "emu.h" +#include "ctrl.h" +#include "bus/midi/midi.h" + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +// ======================> snes_miracle_device + +class snes_miracle_device : public device_t, + public device_serial_interface, + public device_snes_control_port_interface +{ +public: + static const int XMIT_RING_SIZE = 64; + static const int RECV_RING_SIZE = 64; + + // construction/destruction + snes_miracle_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr); + virtual machine_config_constructor device_mconfig_additions() const; + + // serial overrides + virtual void rcv_complete(); // Rx completed receiving byte + virtual void tra_complete(); // Tx completed sending byte + virtual void tra_callback(); // Tx send bit + + void xmit_char(UINT8 data); + + required_device<midi_port_device> m_midiin, m_midiout; + +protected: + // device-level overrides + virtual void device_start(); + virtual void device_reset(); + + virtual UINT8 read_pin4(); + virtual void write_strobe(UINT8 data); + + static const device_timer_id TIMER_STROBE_ON = 0; + emu_timer *strobe_timer; + + int m_strobe_on, m_midi_mode, m_sent_bits; + UINT32 m_strobe_clock; + UINT8 m_data_sent; + UINT8 m_xmitring[XMIT_RING_SIZE], m_recvring[RECV_RING_SIZE]; + int m_xmit_read, m_xmit_write; + int m_recv_read, m_recv_write; + bool m_tx_busy, m_read_status, m_status_bit; +}; + +// device type definition +extern const device_type SNES_MIRACLE; + +#endif |