1998/0327/port/devsd.c (diff list | history)

1998/0325/sys/src/9/port/devsd.c:231,247 – 1998/0327/sys/src/9/port/devsd.c:231,247 (short | long | prev | next)
Change dev read and write to use vlong. rsc Fri Mar 4 12:44:25 2005
1994/0913		}
1997/0327		static long
1998/0325		sdread(Chan *c, void *a, long n, vlong offset)
1998/0327		sdread(Chan *c, void *a, long n, vlong off)
1994/0913		{
1998/0319
1995/0325		if(c->qid.path & CHDIR)
1994/0913		return devdirread(c, a, n, 0, 0, sdgen); return sdio(c, 0, a, n, offset);
1998/0327		return sdio(c, 0, a, n, off);
1994/0913		}
1997/0327		static long
1998/0325		sdwrite(Chan *c, char *a, long n, vlong offset)
1998/0327		sdwrite(Chan *c, char *a, long n, vlong off)
1994/0913		{
1996/0607		Disk *d;
1998/0325/sys/src/9/port/devsd.c:249,255 – 1998/0327/sys/src/9/port/devsd.c:249,255
1996/0607		if((d->inquire[0] & 0x1F) == TypeCD) error(Eperm);
1994/0913		return sdio(c, 1, a, n, offset);
1998/0327		return sdio(c, 1, a, n, off);
1995/0108		}
1997/0327		Dev sddevtab = {
1998/0325/sys/src/9/port/devsd.c:354,366 – 1998/0327/sys/src/9/port/devsd.c:354,366
1994/0913		Part *p; uchar *b; ulong block, n, max, x;
1998/0325		ulong offset = off;
1998/0327		ulong offset;
1994/0913		d = &disk[DRIVE(c->qid)]; p = &d->table[PART(c->qid)];
1995/0403
1994/0913		block = (offset / d->bsize) + p->beg; n = (offset + len + d->bsize - 1) / d->bsize + p->beg - block;
1998/0327		block = (off / d->bsize) + p->beg; n = (off + len + d->bsize - 1) / d->bsize + p->beg - block;
1994/0913		max = SCSImaxxfer / d->bsize; if(n > max) n = max;
1998/0325/sys/src/9/port/devsd.c:373,379 – 1998/0327/sys/src/9/port/devsd.c:373,379
1994/0913		if(b == 0)
1996/0607		return scsierrstr(STnomem);
1994/0913		offset %= d->bsize;
1998/0327		offset = off % d->bsize;
1994/0913		if(write) { if(offset || len % d->bsize) { x = scsibio(d->t, d->lun, SCSIread, b, n, d->bsize, block);