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Diffstat (limited to 'src/devices/sound/8950intf.h')
-rw-r--r-- | src/devices/sound/8950intf.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/src/devices/sound/8950intf.h b/src/devices/sound/8950intf.h new file mode 100644 index 00000000000..42db5339696 --- /dev/null +++ b/src/devices/sound/8950intf.h @@ -0,0 +1,81 @@ +// license:BSD-3-Clause +// copyright-holders:Ernesto Corvi +#pragma once + +#ifndef __8950INTF_H__ +#define __8950INTF_H__ + +#include "emu.h" + +#define MCFG_Y8950_IRQ_HANDLER(_devcb) \ + devcb = &y8950_device::set_irq_handler(*device, DEVCB_##_devcb); + +#define MCFG_Y8950_KEYBOARD_READ_HANDLER(_devcb) \ + devcb = &y8950_device::set_keyboard_read_handler(*device, DEVCB_##_devcb); + +#define MCFG_Y8950_KEYBOARD_WRITE_HANDLER(_devcb) \ + devcb = &y8950_device::set_keyboard_write_handler(*device, DEVCB_##_devcb); + +#define MCFG_Y8950_IO_READ_HANDLER(_devcb) \ + devcb = &y8950_device::set_io_read_handler(*device, DEVCB_##_devcb); + +#define MCFG_Y8950_IO_WRITE_HANDLER(_devcb) \ + devcb = &y8950_device::set_io_write_handler(*device, DEVCB_##_devcb); + +class y8950_device : public device_t, + public device_sound_interface +{ +public: + y8950_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + // static configuration helpers + template<class _Object> static devcb_base &set_irq_handler(device_t &device, _Object object) { return downcast<y8950_device &>(device).m_irq_handler.set_callback(object); } + template<class _Object> static devcb_base &set_keyboard_read_handler(device_t &device, _Object object) { return downcast<y8950_device &>(device).m_keyboard_read_handler.set_callback(object); } + template<class _Object> static devcb_base &set_keyboard_write_handler(device_t &device, _Object object) { return downcast<y8950_device &>(device).m_keyboard_write_handler.set_callback(object); } + template<class _Object> static devcb_base &set_io_read_handler(device_t &device, _Object object) { return downcast<y8950_device &>(device).m_io_read_handler.set_callback(object); } + template<class _Object> static devcb_base &set_io_write_handler(device_t &device, _Object object) { return downcast<y8950_device &>(device).m_io_write_handler.set_callback(object); } + + DECLARE_READ8_MEMBER( read ); + DECLARE_WRITE8_MEMBER( write ); + + DECLARE_READ8_MEMBER( status_port_r ); + DECLARE_READ8_MEMBER( read_port_r ); + DECLARE_WRITE8_MEMBER( control_port_w ); + DECLARE_WRITE8_MEMBER( write_port_w ); + + void _IRQHandler(int irq); + void _timer_handler(int c, const attotime &period); + void _y8950_update_request(); + unsigned char _Y8950PortHandler_r(); + void _Y8950PortHandler_w(unsigned char data); + unsigned char _Y8950KeyboardHandler_r(); + void _Y8950KeyboardHandler_w(unsigned char data); + +protected: + // device-level overrides + virtual void device_config_complete(); + virtual void device_start(); + virtual void device_stop(); + virtual void device_reset(); + + virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr); + + // sound stream update overrides + virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples); + +private: + // internal state + sound_stream * m_stream; + emu_timer * m_timer[2]; + void * m_chip; + devcb_write_line m_irq_handler; + devcb_read8 m_keyboard_read_handler; + devcb_write8 m_keyboard_write_handler; + devcb_read8 m_io_read_handler; + devcb_write8 m_io_write_handler; +}; + +extern const device_type Y8950; + + +#endif /* __8950INTF_H__ */ |