diff options
author | julian <julian@FreeBSD.org> | 1995-09-05 05:45:34 +0000 |
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committer | julian <julian@FreeBSD.org> | 1995-09-05 05:45:34 +0000 |
commit | 0ba2ce040ddab9ea7e88b8bbad623ba9619c2aba (patch) | |
tree | 50b0c16660fdeede3037c72d3ed1a339a26a15c5 /sys | |
parent | 912bdf25e65e27fab65e3d7f1bc803890346a3f5 (diff) | |
download | FreeBSD-src-0ba2ce040ddab9ea7e88b8bbad623ba9619c2aba.zip FreeBSD-src-0ba2ce040ddab9ea7e88b8bbad623ba9619c2aba.tar.gz |
Submitted by: John Lind (john@starfire.mn.org)
/*
+ * Code for MTERASE added by John Lind (john@starfire.mn.org) 95/09/02.
+ * This was very easy due to the excellent structure and clear coding
+ * of the original driver.
+ */
Diffstat (limited to 'sys')
-rw-r--r-- | sys/i386/isa/wt.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/sys/i386/isa/wt.c b/sys/i386/isa/wt.c index 87f3ae7..04c7416 100644 --- a/sys/i386/isa/wt.c +++ b/sys/i386/isa/wt.c @@ -19,11 +19,17 @@ * the original CMU copyright notice. * * Version 1.3, Thu Nov 11 12:09:13 MSK 1993 - * $Id: wt.c,v 1.16 1995/04/12 20:48:13 wollman Exp $ + * $Id: wt.c,v 1.17 1995/05/30 08:03:22 rgrimes Exp $ * */ /* + * Code for MTERASE added by John Lind (john@starfire.mn.org) 95/09/02. + * This was very easy due to the excellent structure and clear coding + * of the original driver. + */ + +/* * Copyright (c) 1989 Carnegie-Mellon University. * All rights reserved. * @@ -488,6 +494,20 @@ int wtioctl (int dev, int cmd, void *arg, int mode) if (error = wtwritefm (t)) return (error); return (0); + case MTERASE: /* erase to EOM */ + if (! (t->flags & TPWRITE) || (t->flags & TPWP)) + return (EACCES); + if (error = wtwait (t, PCATCH, "wterase")) + return (error); + /* ERASE operations work like REWIND. */ + /* Simulate the rewind operation here. */ + t->flags &= ~(TPRO | TPWO | TPVOL); + if (! wtcmd (t, QIC_ERASE)) + return (EIO); + t->flags |= TPSTART | TPREW; + t->flags |= TPWANY; + wtclock (t); + return (0); } return (EINVAL); } |