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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@3605 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Linus Nielsen Feltzing 2003-04-24 18:33:32 +00:00
parent e4e466504d
commit cc6183e73c
1 changed files with 10 additions and 8 deletions
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18
firmware/drivers/fat.c
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@ -1481,7 +1481,7 @@ static int next_write_cluster(struct fat_file* file,
return cluster;
}
static bool transfer( unsigned int start, int count, char* buf, bool write )
static int transfer( unsigned int start, int count, char* buf, bool write )
{
int rc;
@ -1497,9 +1497,9 @@ static bool transfer( unsigned int start, int count, char* buf, bool write )
DEBUGF( "transfer() - Couldn't %s sector %x"
" (error code %d)\n",
write ? "write":"read", start, rc);
return false;
return rc;
}
return true;
return 0;
}
@ -1512,6 +1512,7 @@ int fat_readwrite( struct fat_file *file, int sectorcount,
bool eof = file->eof;
int first=0, last=0;
int i;
int rc;
LDEBUGF( "fat_readwrite(file:%x,count:0x%x,buf:%x,%s)\n",
file->firstcluster,sectorcount,buf,write?"write":"read");
@ -1560,8 +1561,9 @@ int fat_readwrite( struct fat_file *file, int sectorcount,
if ( ((sector != first) && (sector != last+1)) || /* not sequential */
(last-first+1 == 256) ) { /* max 256 sectors per ata request */
int count = last - first + 1;
if (!transfer( first + fat_bpb.startsector, count, buf, write ))
return -1;
rc = transfer( first + fat_bpb.startsector, count, buf, write );
if (rc < 0)
return rc * 10 - 1;
((char*)buf) += count * SECTOR_SIZE;
first = sector;
@ -1571,9 +1573,9 @@ int fat_readwrite( struct fat_file *file, int sectorcount,
(!eof))
{
int count = sector - first + 1;
if (!transfer( first + fat_bpb.startsector,
count, buf, write ))
return -2;
rc = transfer( first + fat_bpb.startsector, count, buf, write );
if (rc < 0)
return rc * 10 - 2;
}
last = sector;