1 // license:BSD-3-Clause 2 // copyright-holders:Olivier Galibert 3 #ifndef MAME_SOUND_MAS3507D_H 4 #define MAME_SOUND_MAS3507D_H 5 6 #pragma once 7 8 #define MINIMP3_ONLY_MP3 9 #define MINIMP3_NO_STDIO 10 #include "minimp3/minimp3.h" 11 12 class mas3507d_device : public device_t, public device_sound_interface 13 { 14 public: 15 // construction/destruction 16 mas3507d_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0); 17 sample_cb()18 auto sample_cb() { return cb_sample.bind(); } 19 20 int i2c_scl_r(); 21 int i2c_sda_r(); 22 void i2c_scl_w(bool line); 23 void i2c_sda_w(bool line); 24 get_frame_count()25 u32 get_frame_count() const { return total_frame_count - buffered_frame_count; } 26 27 protected: 28 virtual void device_start() override; 29 virtual void device_reset() override; 30 virtual void sound_stream_update(sound_stream &stream, std::vector<read_stream_view> const &inputs, std::vector<write_stream_view> &outputs) override; 31 32 private: 33 devcb_read16 cb_sample; 34 35 enum { IDLE, STARTED, NAK, ACK, ACK2 } i2c_bus_state; 36 enum { UNKNOWN, VALIDATED, WRONG } i2c_bus_address; 37 38 std::array<u8, 0xe00> mp3data; 39 std::array<mp3d_sample_t, MINIMP3_MAX_SAMPLES_PER_FRAME> samples; 40 bool i2c_scli, i2c_sclo, i2c_sdai, i2c_sdao; 41 int i2c_bus_curbit; 42 uint8_t i2c_bus_curval; 43 int mp3_count, sample_count, current_rate; 44 u32 total_frame_count, buffered_frame_count; 45 46 mp3dec_t mp3_dec; 47 mp3dec_frame_info_t mp3_info; 48 49 sound_stream *stream; 50 51 void i2c_nak(); 52 bool i2c_device_got_address(uint8_t address); 53 void i2c_device_got_byte(uint8_t byte); 54 void i2c_device_got_stop(); 55 56 enum { UNDEFINED, CONTROL, DATA_READ, DATA_WRITE, BAD } i2c_subdest; 57 enum { CMD_BAD, CMD_RUN, CMD_READ_CTRL, CMD_WRITE_REG, CMD_WRITE_MEM, CMD_READ_REG, CMD_READ_MEM } i2c_command; 58 int i2c_bytecount; 59 uint32_t i2c_io_bank, i2c_io_adr, i2c_io_count, i2c_io_val; 60 61 void mem_write(int bank, uint32_t adr, uint32_t val); 62 void run_program(uint32_t adr); 63 void reg_write(uint32_t adr, uint32_t val); 64 65 void fill_buffer(); 66 void append_buffer(std::vector<write_stream_view> &outputs, int &pos, int samples); 67 }; 68 69 70 // device type definition 71 DECLARE_DEVICE_TYPE(MAS3507D, mas3507d_device) 72 73 #endif // MAME_SOUND_MAS3507D_H 74