1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
#ifndef MAME_SOUND_MAS3507D_H
#define MAME_SOUND_MAS3507D_H
#pragma once
#define MINIMP3_ONLY_MP3
#define MINIMP3_NO_STDIO
#include "minimp3/minimp3.h"
class mas3507d_device : public device_t, public device_sound_interface
{
public:
// construction/destruction
mas3507d_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
auto sample_cb() { return cb_sample.bind(); }
int i2c_scl_r();
int i2c_sda_r();
void i2c_scl_w(bool line);
void i2c_sda_w(bool line);
u32 get_frame_count() const { return total_frame_count - buffered_frame_count; }
protected:
virtual void device_start() override;
virtual void device_reset() override;
virtual void sound_stream_update(sound_stream &stream, std::vector<read_stream_view> const &inputs, std::vector<write_stream_view> &outputs) override;
private:
devcb_read16 cb_sample;
enum { IDLE, STARTED, NAK, ACK, ACK2 } i2c_bus_state;
enum { UNKNOWN, VALIDATED, WRONG } i2c_bus_address;
std::array<u8, 0xe00> mp3data;
std::array<mp3d_sample_t, MINIMP3_MAX_SAMPLES_PER_FRAME> samples;
bool i2c_scli, i2c_sclo, i2c_sdai, i2c_sdao;
int i2c_bus_curbit;
uint8_t i2c_bus_curval;
int mp3_count, sample_count, current_rate;
u32 total_frame_count, buffered_frame_count;
mp3dec_t mp3_dec;
mp3dec_frame_info_t mp3_info;
sound_stream *stream;
void i2c_nak();
bool i2c_device_got_address(uint8_t address);
void i2c_device_got_byte(uint8_t byte);
void i2c_device_got_stop();
enum { UNDEFINED, CONTROL, DATA_READ, DATA_WRITE, BAD } i2c_subdest;
enum { CMD_BAD, CMD_RUN, CMD_READ_CTRL, CMD_WRITE_REG, CMD_WRITE_MEM, CMD_READ_REG, CMD_READ_MEM } i2c_command;
int i2c_bytecount;
uint32_t i2c_io_bank, i2c_io_adr, i2c_io_count, i2c_io_val;
void mem_write(int bank, uint32_t adr, uint32_t val);
void run_program(uint32_t adr);
void reg_write(uint32_t adr, uint32_t val);
void fill_buffer();
void append_buffer(std::vector<write_stream_view> &outputs, int &pos, int samples);
};
// device type definition
DECLARE_DEVICE_TYPE(MAS3507D, mas3507d_device)
#endif // MAME_SOUND_MAS3507D_H
|