1 // license:BSD-3-Clause 2 // copyright-holders:Nicola Salmoria, Tormod Tjaberg, Mirko Buffoni,Lee Taylor, Valerio Verrando, Zsolt Vasvari,Aaron Giles,Jonathan Gevaryahu,hap,Robbbert 3 /*************************************************************************** 4 5 8080-based black and white sound hardware 6 7 ****************************************************************************/ 8 #ifndef MAME_AUDIO_8080BW_H 9 #define MAME_AUDIO_8080BW_H 10 11 #pragma once 12 13 #include "machine/timer.h" 14 #include "sound/discrete.h" 15 #include "sound/samples.h" 16 #include "sound/sn76477.h" 17 18 class cane_audio_device : public device_t 19 { 20 public: 21 cane_audio_device(machine_config const &mconfig, char const *tag, device_t *owner, u32 clock = 0); 22 23 void sh_port_1_w(u8 data); 24 void music_w(u8 data); 25 void sn76477_en_w(u8 data); 26 void sn76477_dis_w(u8 data); 27 28 protected: 29 virtual void device_add_mconfig(machine_config &config) override; 30 virtual ioport_constructor device_input_ports() const override; 31 virtual void device_start() override; 32 33 private: 34 TIMER_DEVICE_CALLBACK_MEMBER(vco_voltage_timer); 35 36 required_device<timer_device> m_vco_timer; 37 required_device<sn76477_device> m_sn; 38 required_device<discrete_sound_device> m_discrete; 39 40 attotime m_vco_rc_chargetime; 41 }; 42 43 DECLARE_DEVICE_TYPE(CANE_AUDIO, cane_audio_device) 44 45 #endif // MAME_AUDIO_8080BW_H 46