mirror of
https://github.com/MiSTer-devel/Main_MiSTer.git
synced 2026-04-19 03:04:28 +00:00
35639f0fb9
Adjustment to head seek timing: When seeking to audio tracks, there is a delay of between 130ms and 290ms between the status confirmation of completion and the start of audio. 80% of the time this is 220ms +/-20ms and does not appear to be related to either seek distance or location on disc. This fix inserts a delay between head seek arrival status confirmation and the start of audio play, without changing the total delay (ie. status is retruned earlier where appropriate). This fixes Last Alert's excess sound, but may also fix other games' sound. This was tested against main games which have presented issues with seektime in the past.
144 lines
3.2 KiB
C++
144 lines
3.2 KiB
C++
#ifndef PCECD_H
|
|
#define PCECD_H
|
|
|
|
// CDD command
|
|
#define PCECD_COMM_TESTUNIT 0x00
|
|
#define PCECD_COMM_REQUESTSENSE 0x03
|
|
#define PCECD_COMM_READ6 0x08
|
|
#define PCECD_COMM_MODESELECT6 0x15
|
|
#define PCECD_COMM_SAPSP 0xD8
|
|
#define PCECD_COMM_SAPEP 0xD9
|
|
#define PCECD_COMM_PAUSE 0xDA
|
|
#define PCECD_COMM_READSUBQ 0xDD
|
|
#define PCECD_COMM_GETDIRINFO 0xDE
|
|
|
|
#define PCECD_STATE_IDLE 0
|
|
#define PCECD_STATE_NODISC 1
|
|
#define PCECD_STATE_READ 2
|
|
#define PCECD_STATE_PLAY 3
|
|
#define PCECD_STATE_PAUSE 4
|
|
|
|
#define PCECD_STATUS_GOOD 0
|
|
#define PCECD_STATUS_CHECK_COND 1
|
|
#define PCECD_STATUS_CONDITION_MET 2
|
|
#define PCECD_STATUS_BUSY 4
|
|
#define PCECD_STATUS_INTERMEDIATE 8
|
|
|
|
#define SENSEKEY_NO_SENSE 0x0
|
|
#define SENSEKEY_NOT_READY 0x2
|
|
#define SENSEKEY_MEDIUM_ERROR 0x3
|
|
#define SENSEKEY_HARDWARE_ERROR 0x4
|
|
#define SENSEKEY_ILLEGAL_REQUEST 0x5
|
|
#define SENSEKEY_UNIT_ATTENTION 0x6
|
|
#define SENSEKEY_ABORTED_COMMAND 0xB
|
|
|
|
#define NSE_NO_DISC 0x0B
|
|
#define NSE_TRAY_OPEN 0x0D
|
|
#define NSE_SEEK_ERROR 0x15
|
|
#define NSE_HEADER_READ_ERROR 0x16
|
|
#define NSE_NOT_AUDIO_TRACK 0x1C
|
|
#define NSE_NOT_DATA_TRACK 0x1D
|
|
#define NSE_INVALID_COMMAND 0x20
|
|
#define NSE_INVALID_ADDRESS 0x21
|
|
#define NSE_INVALID_PARAMETER 0x22
|
|
#define NSE_END_OF_VOLUME 0x25
|
|
#define NSE_INVALID_REQUEST_IN_CDB 0x27
|
|
#define NSE_DISC_CHANGED 0x28
|
|
#define NSE_AUDIO_NOT_PLAYING 0x2C
|
|
|
|
#define PCECD_CDDAMODE_SILENT 0x00
|
|
#define PCECD_CDDAMODE_LOOP 0x01
|
|
#define PCECD_CDDAMODE_INTERRUPT 0x02
|
|
#define PCECD_CDDAMODE_NORMAL 0x03
|
|
|
|
#include "../../cd.h"
|
|
|
|
typedef struct
|
|
{
|
|
uint8_t key;
|
|
uint8_t asc;
|
|
uint8_t ascq;
|
|
uint8_t fru;
|
|
} sense_t;
|
|
|
|
class pcecdd_t
|
|
{
|
|
public:
|
|
uint32_t latency;
|
|
uint32_t audiodelay;
|
|
uint8_t state;
|
|
uint8_t isData;
|
|
int loaded;
|
|
SendDataFunc SendData;
|
|
int has_status;
|
|
bool data_req;
|
|
bool can_read_next;
|
|
|
|
pcecdd_t();
|
|
int Load(const char *filename);
|
|
void Unload();
|
|
void Reset();
|
|
void Update();
|
|
void CommandExec();
|
|
uint16_t GetStatus();
|
|
int SetCommand(uint8_t* buf);
|
|
void PendStatus(uint16_t status);
|
|
void SendStatus(uint16_t status);
|
|
void SendDataRequest();
|
|
void SetRegion(uint8_t rgn);
|
|
|
|
private:
|
|
toc_t toc;
|
|
int index;
|
|
int lba;
|
|
int cnt;
|
|
int scanOffset;
|
|
int audioLength;
|
|
int audioOffset;
|
|
int CDDAStart;
|
|
int CDDAEnd;
|
|
int CDDAFirst;
|
|
uint8_t CDDAMode;
|
|
sense_t sense;
|
|
uint8_t region;
|
|
uint8_t *chd_hunkbuf;
|
|
int chd_hunknum;
|
|
|
|
uint16_t stat;
|
|
uint8_t comm[14];
|
|
|
|
uint8_t sec_buf[2352 + 2];
|
|
|
|
int LoadCUE(const char* filename);
|
|
int SectorSend(uint8_t* header);
|
|
void ReadData(uint8_t *buf);
|
|
int ReadCDDA(uint8_t *buf);
|
|
void ReadSubcode(uint16_t* buf);
|
|
void LBAToMSF(int lba, msf_t* msf);
|
|
void MSFToLBA(int* lba, msf_t* msf);
|
|
void MSFToLBA(int* lba, uint8_t m, uint8_t s, uint8_t f);
|
|
int GetTrackByLBA(int lba, toc_t* toc);
|
|
void CommandError(uint8_t key, uint8_t asc, uint8_t ascq, uint8_t fru);
|
|
};
|
|
|
|
#define MAKE_STATUS(s,m) ((uint16_t)((((m)&0xFF) << 8) | ((s)&0xFF)))
|
|
|
|
#define BCD(v) ((uint8_t)((((v)/10) << 4) | ((v)%10)))
|
|
#define U8(v) ((uint8_t)(((((v)&0xF0) >> 4) * 10) + ((v)&0x0F)))
|
|
|
|
#define CD_SCAN_SPEED 30
|
|
|
|
//pcecdd.cpp
|
|
extern pcecdd_t pcecdd;
|
|
|
|
|
|
void pcecd_poll();
|
|
void pcecd_set_image(int num, const char *filename);
|
|
int pcecd_send_data(uint8_t* buf, int len, uint8_t index);
|
|
void pcecd_reset();
|
|
int pcecd_using_cd();
|
|
|
|
#define PCECD_DIR "TGFX16-CD"
|
|
|
|
#endif
|