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// license:BSD-3-Clause
// copyright-holders:windyfairy
/**********************************************************************
Sanyo LC82310 MP3 decoder
**********************************************************************/
#ifndef MAME_SOUND_LC82310_H
#define MAME_SOUND_LC82310_H
#pragma once
#include "mp3_audio.h"
class lc82310_device : public device_t,
public device_sound_interface
{
public:
lc82310_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
void zcsctl_w(int state);
void ckctl_w(int state);
void dictl_w(int state);
int doctl_r();
int demand_r();
void dimpg_w(uint8_t data);
void reset_playback();
protected:
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
virtual void sound_stream_update(sound_stream &stream, std::vector<read_stream_view> const &inputs, std::vector<write_stream_view> &outputs) override;
private:
enum : uint8_t
{
ACCEPTING_CMD,
ACCEPTING_PARAM,
};
enum : uint8_t
{
CMD_UNK10 = 0x10,
CMD_UNK11 = 0x11,
CMD_UNK12 = 0x12, // Set to 0 when writing data and 1 when not writing data
CMD_UNK13_VOL = 0x13,
CMD_UNK15_VOL = 0x15,
CMD_UNK17 = 0x17,
CMD_UNK18 = 0x18,
CMD_SET_CONFIGURATION = 0x22, // has PLLOFF and SLEEP bits
CMD_UNK80 = 0x80,
CMD_UNK81 = 0x81,
CMD_UNK82 = 0x82,
CMD_GET_ERROR_STATUS = 0x83,
CMD_UNK84 = 0x84,
CMD_UNK85 = 0x85,
};
void handle_command(uint8_t cmd, uint8_t param);
void fill_buffer();
void append_buffer(std::vector<write_stream_view> &outputs, int &pos, int scount);
sound_stream *stream;
std::unique_ptr<mp3_audio> mp3dec;
std::array<uint8_t, 0x1000> mp3data;
std::array<short, 1152*2> samples;
uint32_t m_mp3data_count;
int32_t m_sample_count, m_samples_idx;
int32_t m_frame_channels;
float m_output_gain[2];
uint8_t m_csctl;
uint8_t m_ckctl;
uint8_t m_dictl;
uint8_t m_doctl;
uint8_t m_ctl_state;
uint8_t m_ctl_cmd;
uint8_t m_ctl_bits;
uint8_t m_ctl_byte;
uint8_t m_ctl_out_byte;
};
DECLARE_DEVICE_TYPE(LC82310, lc82310_device)
#endif // MAME_SOUND_LC82310_H
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