修改 Cardfs.h
typedef struct _CARD_INFO {
UINT32 sAddBootSec; //boot sector start address(in LBA)
UINT32 sAddFAT; //FAT start address(in LBA)
UINT32 sAddFDB; //root FDB start address, FAT16 only(in LBA)
UINT32 sAddData; //data start address(in LBA)
#ifdef NEW_PLAYMSF
UINT32 bytePerSec; //bytes/sector
UINT8 secPerClus; //sectors/Cluster
UINT32 secPerFAT; //sectors/FAT
#else
UINT16 bytePerSec; //bytes/sector
UINT16 secPerClus; //sectors/Cluster
UINT16 secPerFAT; //sectors/FAT
#endif
UINT16 nFDBinRoot; //#FDB in root dir
BYTE nHeadMax; //max head
BYTE nSecMax; //max sector
BYTE typeFAT; //FAT16/FAT32
BYTE nItemSizeFAT; //2x item size in FAT(in Bytes)
int bFATCacheCluster;//1:cache in cluster, 0:cache in LBA
UINT32 totalClus; // total cluster in FAT
} CARD_INFO;
修改fs_fat.c
typedef struct {
fs_mem_handle_t h1;
fs_mem_handle_t h2;
fs_mem_handle_t h3;
disk_t *pDisk; //disk where this partition resides
UINT32 sAddFAT; //FAT start address(in LBA)
UINT32 sAddFDB; //root FDB start address, FAT16 only(in LBA)
UINT32 sAddData; //data start address(in LBA)
UINT16 typeFAT; //FAT type
#ifdef NEW_PLAYMSF
UINT32 secPerClus; //sectors/Cluster
#else
UINT8 secPerClus; //sectors/Cluster
#endif
UINT32 bytePerClus; //bytes/Cluster
//UINT16 secPerFAT; //sectors/FAT
UINT32 secPerFAT; //sectors/FAT
UINT16 nFDBinRoot; //maximum root directory entries
UINT32 totalClus; //clusters/Partition
//pages -- a cached region of the FAT
UINT16 clusPerPage; //clusters per page
UINT16 bytePerPage; //bytes per page
UINT32 pagePerPart; //number of pages in partition
fat_page_t fatPage1; //primary page -- can read/write
fat_page_t fatPage2; //secondary page -- read only
//page table -- mark pages with free clusters
UINT8 *sPageTable; //memory location of free list
UINT32 pageTableSize; //number of pages
} fat_partition_t;
修改Util.c
#ifdef NEW_PLAYMSF
UINT32 HDD_MSF = 0;
#endif
UINT32 l2msf(UINT32 l)
{
UINT32 ss, ff;
UINT32 l_75, l_4500;
l += 150;
l_75 = l/75;
l_4500 = l_75/60;
ff = l - 75*l_75;
ss = l_75 - 60*l_4500;
#ifdef NEW_PLAYMSF
if(storage_type==USB_DEVICE)
HDD_MSF = l_4500&0xFFFF0000;
#endif
return (l_4500<<16) | (ss<<8) | (ff);
}
UINT32 msf2l(UINT32 msf)
{
UINT32 iMM;
//Jeff replace, 20030814
//return MSF2l(msf_mm(msf), msf_ss(msf), msf_ff(msf));
//JSLin 20040915 //added CDDVD
#ifdef NEW_PLAYMSF
if(storage_type==USB_DEVICE)
{
iMM =((msf>>16)&0xFFFF)|HDD_MSF;
return (iMM*60*75+msf_ss(msf)*75+msf_ff(msf)-150);
}
#endif
if ((cd_type_loaded==CDROM) || (cd_type_loaded==CDDVD))
{
iMM = (((msf)>>16) & 0xffff);
}
else
{
iMM = msf_mm(msf);
}
return MSF2l(iMM, msf_ss(msf), msf_ff(msf));
}
