// license:BSD-3-Clause // copyright-holders:windyfairy #ifndef MAME_SOUND_DAC3350A_H #define MAME_SOUND_DAC3350A_H #pragma once class dac3350a_device : public device_t, public device_sound_interface { public: dac3350a_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0); void i2c_scl_w(int line); void i2c_sda_w(int line); protected: virtual void device_start() override ATTR_COLD; virtual void device_reset() override ATTR_COLD; virtual void sound_stream_update(sound_stream &stream) override; private: void i2c_device_handle_write(); float calculate_volume(int val); sound_stream *m_stream; uint8_t m_i2c_bus_state; uint8_t m_i2c_bus_address; uint8_t m_i2c_scli, m_i2c_sdai; int32_t m_i2c_bus_curbit; uint8_t m_i2c_bus_curval; uint32_t m_i2c_bytecount; uint8_t m_i2c_subadr; uint16_t m_i2c_data; bool m_dac_enable; float m_volume[2]; }; DECLARE_DEVICE_TYPE(DAC3350A, dac3350a_device) #endif // MAME_SOUND_DAC3350A_H