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Add a flushcache command -- I need it for my DVD+RW.

This commit is contained in:
mycroft 2003-09-01 04:24:55 +00:00
parent cd1ddca4f8
commit 4950c2c904
2 changed files with 37 additions and 3 deletions
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6
sbin/scsictl/scsictl.8
View File

@ -1,4 +1,4 @@
.\" $NetBSD: scsictl.8,v 1.17 2002/10/03 15:41:47 wiz Exp $
.\" $NetBSD: scsictl.8,v 1.18 2003/09/01 04:24:55 mycroft Exp $
.\"
.\" Copyright (c) 1998, 2002 The NetBSD Foundation, Inc.
.\" All rights reserved.
@ -188,6 +188,10 @@ If the drive's cache parameters are savable, specifying
.Ar save
after the cache enable state will cause the parameters to be saved in
non-volatile storage.
.Pp
.Nm flushcache
.Pp
Explicitly flushes the write cache.
.Sh BUS COMMANDS
The following commands are supported for SCSI busses:
.Pp

34
sbin/scsictl/scsictl.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: scsictl.c,v 1.20 2003/06/23 11:53:43 agc Exp $ */
/* $NetBSD: scsictl.c,v 1.21 2003/09/01 04:24:55 mycroft Exp $ */
/*-
* Copyright (c) 1998, 2002 The NetBSD Foundation, Inc.
@ -43,7 +43,7 @@
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: scsictl.c,v 1.20 2003/06/23 11:53:43 agc Exp $");
__RCSID("$NetBSD: scsictl.c,v 1.21 2003/09/01 04:24:55 mycroft Exp $");
#endif
@ -94,6 +94,7 @@ void device_stop __P((int, char *[]));
void device_tur __P((int, char *[]));
void device_getcache __P((int, char *[]));
void device_setcache __P((int, char *[]));
void device_flushcache __P((int, char *[]));
struct command device_commands[] = {
{ "format", "[blocksize [immediate]]", device_format },
@ -108,6 +109,7 @@ struct command device_commands[] = {
{ "tur", "", device_tur },
{ "getcache", "", device_getcache },
{ "setcache", "none|r|w|rw [save]", device_setcache },
{ "flushcache", "", device_flushcache },
{ NULL, NULL, NULL },
};
@ -700,6 +702,34 @@ device_setcache(argc, argv)
scsi_mode_select(fd, byte2, &data, dlen);
}
/*
* device_flushcache:
*
* Issue a FLUSH CACHE command to a SCSI drevice
*/
#ifndef SCSI_FLUSHCACHE
#define SCSI_FLUSHCACHE 0x35
#endif
void
device_flushcache(argc, argv)
int argc;
char *argv[];
{
struct scsipi_test_unit_ready cmd; /* close enough */
/* No arguments. */
if (argc != 0)
usage();
memset(&cmd, 0, sizeof(cmd));
cmd.opcode = SCSI_FLUSHCACHE;
scsi_command(fd, &cmd, sizeof(cmd), NULL, 0, 10000, 0);
return;
}
/*
* device_start:
*