Macintosh-HW/BlueSCSI
1
0
Fork 0
mirror of https://github.com/erichelgeson/BlueSCSI.git synced 2024-12-22 12:30:12 +00:00
Code Issues Projects Releases Wiki Activity

alternative sector size supported

Browse Source 
this let's .BIN files get used at the very least, maybe more depending
on how some of the other optical formats look
reverted a small SCSI phase change that causes problems
This commit is contained in:
Troy 2022-07-22 20:38:59 -04:00
parent 30b794e03d
commit 3a3d68cf99
2 changed files with 29 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
src/BlueSCSI.cpp
View File

@ -215,8 +215,9 @@ bool VerifyISOPVD(SCSI_DEVICE *dev, unsigned sector_size, bool mode2)
bool hddimageOpen(SCSI_DEVICE *dev, FsFile *file,int id,int lun,int blocksize)
{
dev->m_fileSize= 0;
dev->m_offset = 0;
dev->m_sector_offset = 0;
dev->m_blocksize = blocksize;
dev->m_rawblocksize = blocksize;
dev->m_file = file;
if(!dev->m_file->isOpen()) { goto failed; }
@ -229,25 +230,25 @@ bool hddimageOpen(SCSI_DEVICE *dev, FsFile *file,int id,int lun,int blocksize)
if(dev->m_type == SCSI_DEVICE_OPTICAL) {
LOG_FILE.print(" CDROM");
dev->m_blocksize = CDROM_COMMON_SECTORSIZE;
// Borrowed from PCEM
if(VerifyISOPVD(dev, CDROM_COMMON_SECTORSIZE, false)) {
dev->m_blocksize = CDROM_COMMON_SECTORSIZE;
dev->m_mode2 = false;
} else if(VerifyISOPVD(dev, CDROM_RAW_SECTORSIZE, false)) {
dev->m_blocksize = CDROM_RAW_SECTORSIZE;
dev->m_rawblocksize = CDROM_COMMON_SECTORSIZE;
dev->m_mode2 = false;
} else if(VerifyISOPVD(dev, CDROM_RAW_SECTORSIZE, false)) {
dev->m_rawblocksize = CDROM_RAW_SECTORSIZE;
dev->m_mode2 = false;
dev->m_raw = true;
dev->m_offset = 16;
dev->m_sector_offset = 16;
} else if(VerifyISOPVD(dev, 2336, true)) {
dev->m_blocksize = 2336;
dev->m_rawblocksize = 2336;
dev->m_mode2 = true;
} else if(VerifyISOPVD(dev, CDROM_RAW_SECTORSIZE, true)) {
dev->m_blocksize = CDROM_RAW_SECTORSIZE;
dev->m_rawblocksize = CDROM_RAW_SECTORSIZE;
dev->m_mode2 = true;
dev->m_raw = true;
dev->m_offset = 16;
dev->m_sector_offset = 24;
} else {
// Last ditch effort
// size must be less than 700MB
@ -282,7 +283,7 @@ bool hddimageOpen(SCSI_DEVICE *dev, FsFile *file,int id,int lun,int blocksize)
if(dev->m_type == SCSI_DEVICE_OPTICAL) {
LOG_FILE.print(" MODE2:");LOG_FILE.print(dev->m_mode2);
LOG_FILE.print(" BlockSize:");LOG_FILE.println(dev->m_blocksize);
LOG_FILE.print(" BlockSize:");LOG_FILE.println(dev->m_rawblocksize);
}
return true; // File opened
@ -927,7 +928,7 @@ void writeDataPhaseSD(SCSI_DEVICE *dev, uint32_t adds, uint32_t len)
LOG (" DI(SD) ");
SCSI_PHASE_CHANGE(SCSI_PHASE_DATAIN);
//Bus settle delay 400ns, file.seek() measured at over 1000ns.
uint64_t pos = (uint64_t)adds * dev->m_blocksize;
uint64_t pos = (uint64_t)adds * dev->m_rawblocksize;
dev->m_file->seekSet(pos);
#ifdef XCVR
TRANSCEIVER_IO_SET(vTR_DBP,TR_OUTPUT)
@ -937,10 +938,10 @@ void writeDataPhaseSD(SCSI_DEVICE *dev, uint32_t adds, uint32_t len)
for(uint32_t i = 0; i < len; i++) {
// Asynchronous reads will make it faster ...
m_resetJmp = false;
dev->m_file->read(m_buf, dev->m_blocksize);
dev->m_file->read(m_buf, dev->m_rawblocksize);
enableResetJmp();
writeDataLoop(dev->m_blocksize, m_buf);
writeDataLoop(dev->m_blocksize, &m_buf[dev->m_sector_offset]);
}
}
@ -1073,11 +1074,12 @@ void loop()
m_lun = 0xff;
SCSI_DEVICE *dev = (SCSI_DEVICE *)0; // HDD image for current SCSI-ID, LUN
do {} while( !SCSI_IN(vBSY) || SCSI_IN(vRST));
do {} while( SCSI_IN(vBSY) || !SCSI_IN(vSEL) || SCSI_IN(vRST));
//do {} while( !SCSI_IN(vBSY) || SCSI_IN(vRST));
// We're in ARBITRATION
//LOG(" A:"); LOGHEX(readIO()); LOG(" ");
do {} while( SCSI_IN(vBSY) || !SCSI_IN(vSEL) || SCSI_IN(vRST));
//do {} while( SCSI_IN(vBSY) || !SCSI_IN(vSEL) || SCSI_IN(vRST));
//LOG(" S:"); LOGHEX(readIO()); LOG(" ");
// We're in SELECTION
@ -1368,6 +1370,7 @@ byte onReadCapacity(SCSI_DEVICE *dev, const byte *cdb)
(byte)(dev->m_blocksize >> 8),
(byte)(dev->m_blocksize)
};
writeDataPhase(sizeof(buf), buf);
return SCSI_STATUS_GOOD;
}
@ -1552,7 +1555,7 @@ byte onModeSense(SCSI_DEVICE *dev, const byte *cdb)
0, //Reserve
(byte)(dev->m_blocksize >> 16),
(byte)(dev->m_blocksize >> 8),
(byte)(dev->m_blocksize),
(byte)(dev->m_blocksize),
};
memcpy(&m_buf[a], c, 8);
a += 8;

20
src/BlueSCSI.h
View File

@ -218,7 +218,7 @@ enum SCSI_DEVICE_TYPE
// Put DB and DP in output mode
#define SCSI_DB_OUTPUT() { PBREG->CRL=(PBREG->CRL &0xfffffff0)|DB_MODE_OUT; PBREG->CRH = 0x11111111*DB_MODE_OUT; }
// Put DB and DP in input mode
#define SCSI_DB_INPUT() { PBREG->CRL=(PBREG->CRL &0xfffffff0)|DB_MODE_IN ; PBREG->CRH = (uint32_t)0x11111111*DB_MODE_IN; }
#define SCSI_DB_INPUT() { PBREG->CRL=(PBREG->CRL &0xfffffff0)|DB_MODE_IN ; PBREG->CRH = (uint32_t)(0x11111111*DB_MODE_IN); }
// HDDiamge file
#define HDIMG_ID_POS 2 // Position to embed ID number
@ -311,18 +311,18 @@ struct SCSI_INQUIRY_DATA
// HDD image
typedef __attribute__((aligned(4))) struct _SCSI_DEVICE
{
FsFile *m_file; // File object
uint64_t m_fileSize; // File size
uint16_t m_blocksize; // SCSI BLOCK size
uint16_t m_rawblocksize;
uint8_t m_type; // SCSI device type
uint32_t m_blockcount; // blockcount
bool m_raw; // Raw disk
SCSI_INQUIRY_DATA *inquiry_block; // SCSI information
FsFile *m_file; // File object
uint64_t m_fileSize; // File size
uint16_t m_blocksize; // SCSI BLOCK size
uint16_t m_rawblocksize; // OPTICAL raw sector size
uint8_t m_type; // SCSI device type
uint32_t m_blockcount; // blockcount
bool m_raw; // Raw disk
SCSI_INQUIRY_DATA *inquiry_block; // SCSI information
uint8_t m_senseKey; // Sense key
uint16_t m_additional_sense_code; // ASC/ASCQ
bool m_mode2; // MODE2 CDROM
uint8_t m_offset; // ISO offset for missing sync header
uint8_t m_sector_offset; // optical sector offset for missing sync header
} SCSI_DEVICE;