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Diffstat (limited to 'src/mame/audio/tvc_snd.h')
-rw-r--r-- | src/mame/audio/tvc_snd.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/mame/audio/tvc_snd.h b/src/mame/audio/tvc_snd.h new file mode 100644 index 00000000000..b8b955d3c45 --- /dev/null +++ b/src/mame/audio/tvc_snd.h @@ -0,0 +1,59 @@ +// license:BSD-3-Clause +// copyright-holders:Sandro Ronco +/***************************************************************************** + * + * includes/tvc.h + * + ****************************************************************************/ + +#pragma once + +#ifndef _TVC_SND_H_ +#define _TVC_SND_H_ + +#define MCFG_TVC_SOUND_SNDINT_CALLBACK(_write) \ + devcb = &tvc_sound_device::set_sndint_wr_callback(*device, DEVCB_##_write); + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +// ======================> tvc_sound_device + +class tvc_sound_device : public device_t, + public device_sound_interface +{ +public: + // construction/destruction + tvc_sound_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + template<class _Object> static devcb_base &set_sndint_wr_callback(device_t &device, _Object object) { return downcast<tvc_sound_device &>(device).m_write_sndint.set_callback(object); } + + DECLARE_WRITE8_MEMBER(write); + void reset_divider(); + +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 sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples); + +private: + static const device_timer_id TIMER_SNDINT = 0; + + sound_stream * m_stream; + int m_freq; + int m_enabled; + int m_volume; + int m_incr; + int m_signal; + UINT8 m_ports[3]; + emu_timer * m_sndint_timer; + devcb_write_line m_write_sndint; +}; + +// device type definition +extern const device_type TVC_SOUND; + +#endif |