// license:BSD-3-Clause // copyright-holders:R. Belmont, Olivier Galibert #ifndef MAME_AUDIO_DSBZ80_H #define MAME_AUDIO_DSBZ80_H #pragma once #include "cpu/z80/z80.h" #include "machine/i8251.h" #include "sound/mpeg_audio.h" #define DSBZ80_TAG "dsbz80" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** class dsbz80_device : public device_t, public device_sound_interface { public: // construction/destruction dsbz80_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); // configuration auto rxd_handler() { return m_rxd_handler.bind(); } required_device m_ourcpu; required_device m_uart; DECLARE_WRITE_LINE_MEMBER(write_txd); DECLARE_WRITE8_MEMBER(mpeg_trigger_w); DECLARE_WRITE8_MEMBER(mpeg_start_w); DECLARE_WRITE8_MEMBER(mpeg_end_w); DECLARE_WRITE8_MEMBER(mpeg_volume_w); DECLARE_WRITE8_MEMBER(mpeg_stereo_w); DECLARE_READ8_MEMBER(mpeg_pos_r); void dsbz80_map(address_map &map); void dsbz80io_map(address_map &map); protected: // device-level overrides virtual void device_start() override; virtual void device_reset() override; virtual void device_add_mconfig(machine_config &config) override; virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override; private: mpeg_audio *decoder; int16_t audio_buf[1152*2]; uint32_t mp_start, mp_end, mp_vol, mp_pan, mp_state, lp_start, lp_end, start, end; int mp_pos, audio_pos, audio_avail; devcb_write_line m_rxd_handler; DECLARE_WRITE_LINE_MEMBER(output_txd); }; // device type definition DECLARE_DEVICE_TYPE(DSBZ80, dsbz80_device) #endif // MAME_AUDIO_DSBZ80_H