mirror of
https://github.com/MiSTer-devel/Main_MiSTer.git
synced 2026-04-12 03:04:02 +00:00
53f1ca18e8
- Send audio sectors faster so buffer stays filled - Ask FPGA if it is ready to receive a sector - Fix SCAN with CHD files - Fix missing start of audio by sending with separate index
107 lines
2.3 KiB
C++
107 lines
2.3 KiB
C++
#ifndef MEGACD_H
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#define MEGACD_H
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// CDD status
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#define CD_STAT_STOP 0x00
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#define CD_STAT_PLAY 0x01
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#define CD_STAT_SEEK 0x02
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#define CD_STAT_SCAN 0x03
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#define CD_STAT_PAUSE 0x04
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#define CD_STAT_OPEN 0x05
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#define CD_STAT_NO_VALID_CHK 0x06
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#define CD_STAT_NO_VALID_CMD 0x07
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#define CD_STAT_ERROR 0x08
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#define CD_STAT_TOC 0x09
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#define CD_STAT_TRACK_MOVE 0x0A
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#define CD_STAT_NO_DISC 0x0B
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#define CD_STAT_END 0x0C
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#define CD_STAT_TRAY 0x0E
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#define CD_STAT_TEST 0x0F
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// CDD command
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#define CD_COMM_IDLE 0x00
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#define CD_COMM_STOP 0x01
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#define CD_COMM_TOC 0x02
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#define CD_COMM_PLAY 0x03
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#define CD_COMM_SEEK 0x04
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//#define CD_COMM_OPEN 0x05
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#define CD_COMM_PAUSE 0x06
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#define CD_COMM_RESUME 0x07
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#define CD_COMM_FW_SCAN 0x08
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#define CD_COMM_RW_SCAN 0x09
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#define CD_COMM_TRACK_MOVE 0x0A
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#define CD_COMM_TRACK_PLAY 0x0B
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#define CD_COMM_TRAY_CLOSE 0x0C
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#define CD_COMM_TRAY_OPEN 0x0D
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#define MCD_DATA_IO_INDEX 2
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#define MCD_SUB_IO_INDEX 3
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#define MCD_CDDA_IO_INDEX 4
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#include "../../cd.h"
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#include <libchdr/chd.h>
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class cdd_t
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{
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public:
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uint32_t latency;
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uint8_t status;
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uint8_t isData;
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int loaded;
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SendDataFunc SendData;
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int (*CanSendData)(uint8_t type);
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cdd_t();
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int Load(const char *filename);
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void Unload();
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void Reset();
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void Update();
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void CommandExec();
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uint64_t GetStatus(uint8_t crc_start);
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int SetCommand(uint64_t c, uint8_t crc_start);
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private:
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toc_t toc;
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int index;
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int lba;
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uint16_t sectorSize;
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int scanOffset;
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int audioLength;
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int audioOffset;
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int chd_hunknum;
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uint8_t *chd_hunkbuf;
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int chd_audio_read_lba;
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uint8_t stat[10];
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uint8_t comm[10];
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int LoadCUE(const char* filename);
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int LoadCHD(const char* filename);
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int SectorSend(uint8_t* header);
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int SubcodeSend();
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void ReadData(uint8_t *buf);
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int ReadCDDA(uint8_t *buf);
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int ReadSubcode(uint16_t* buf);
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void LBAToMSF(int lba, msf_t* msf);
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void MSFToLBA(int* lba, msf_t* msf);
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void MSFToLBA(int* lba, uint8_t m, uint8_t s, uint8_t f);
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void SeekToLBA(int lba, int play);
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};
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#define BCD(v) ((uint8_t)((((v)/10) << 4) | ((v)%10)))
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#define CD_SCAN_SPEED 30
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//cdd.cpp
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extern cdd_t cdd;
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void mcd_poll();
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void mcd_set_image(int num, const char *filename);
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void mcd_reset();
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int mcd_send_data(uint8_t* buf, int len, uint8_t index);
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int mcd_can_send_data(uint8_t type);
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void mcd_fill_blanksave(uint8_t *buffer, uint32_t lba);
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#endif
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