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// license:BSD-3-Clause
// copyright-holders:Ryan Holtz
/***************************************************************************

    Philips UDA1344 Stereo Audio Codec skeleton

****************************************************************************/

#ifndef MAME_SOUND_UDA1344_H
#define MAME_SOUND_UDA1344_H

#pragma once

class uda1344_device : public device_t, public device_sound_interface
{
public:
	uda1344_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);

	void l3_addr_w(offs_t offset, uint8_t data);
	void l3_data_w(offs_t offset, uint8_t data);

	auto l3_ack_out() { return m_l3_ack_out.bind(); }

	void i2s_input_w(uint32_t data);

protected:
	// device-level overrides
	virtual void device_start() override;
	virtual void device_reset() override;
	virtual void device_clock_changed() override;

	// sound stream update overrides
	virtual void sound_stream_update(sound_stream &stream, std::vector<read_stream_view> const &inputs, std::vector<write_stream_view> &outputs) override;

	void ingest_samples(int16_t left, int16_t right);

	void set_clock_divider(const uint32_t divider);

	static constexpr double BASE_FREQUENCY = 44100;
	static constexpr size_t BUFFER_SIZE = 65536;

	enum : uint8_t
	{
		CHIP_ADDR_MASK      = 0xfc,
		CHIP_ADDR           = 0x14,

		REG_TYPE_MASK       = 0xc0,
		REG_TYPE_BIT        = 6,

		VOLUME_REG          = 0x00,
		VOLUME_REG_MASK     = 0x3f,

		EQUALIZER_REG       = 0x01,
		EQUALIZER_REG_MASK  = 0x3f,
		EQUALIZER_BB_MASK   = 0x3c,
		EQUALIZER_BB_BIT    = 2,
		EQUALIZER_TR_MASK   = 0x03,
		EQUALIZER_TR_BIT    = 0,

		FILTER_REG          = 0x02,
		FILTER_REG_MASK     = 0x1f,
		FILTER_DE_MASK      = 0x18,
		FILTER_DE_BIT       = 3,
		FILTER_MT_BIT       = 2,
		FILTER_MODE_MASK    = 0x03,
		FILTER_MODE_BIT     = 0,

		POWER_REG           = 0x03,
		POWER_REG_MASK      = 0x03,
		POWER_ADC_BIT       = 1,
		POWER_DAC_BIT       = 0,

		STATUS_REG_MASK     = 0x3f,
		STATUS_SC_MASK      = 0x30,
		STATUS_SC_BIT       = 4,
		STATUS_IF_MASK      = 0x0e,
		STATUS_IF_BIT       = 1,
		STATUS_DC_BIT       = 0
	};

	sound_stream *m_stream;
	std::vector<stream_buffer::sample_t> m_buffer[2];
	uint32_t m_bufin[2];
	uint32_t m_bufout[2];
	stream_buffer::sample_t m_volume;
	double m_frequency;

	uint8_t m_data_transfer_mode;
	uint8_t m_status_reg;
	uint32_t m_clock_divider;
	uint8_t m_volume_reg;
	uint8_t m_equalizer_reg;
	uint8_t m_filter_reg;
	uint8_t m_power_reg;

	bool m_dac_enable;
	bool m_adc_enable;

	devcb_write_line m_l3_ack_out;
};

DECLARE_DEVICE_TYPE(UDA1344, uda1344_device)

#endif // MAME_SOUND_UDA1344_H