/scsipi/scsipi_debug.h

 1/*	$NetBSD: scsipi_debug.h,v 1.17 2008/04/28 20:23:58 martin Exp $	*/
 2
 3/*-
 4 * Copyright (c) 1999 The NetBSD Foundation, Inc.
 5 * All rights reserved.
 6 *
 7 * This code is derived from software contributed to The NetBSD Foundation
 8 * by by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
 9 * NASA Ames Research Center.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#if defined(_KERNEL_OPT)
34#include "opt_scsipi_debug.h"
35#endif
36
37/*
38 * Originally written by Julian Elischer (julian@tfs.com)
39 */
40
41#define	SCSIPI_DB1	0x0001		/* scsi commands, errors, data */
42#define	SCSIPI_DB2	0x0002		/* routine flow tracking */
43#define	SCSIPI_DB3	0x0004		/* internal to routine flows */
44#define	SCSIPI_DB4	0x0008		/* level 4 debugging for this dev */
45
46/*
47 * The following options allow us to build a kernel with debugging on
48 * by default for a certain type of device.  We can always enable
49 * debugging on a specific device using an ioctl.
50 */
51#ifndef SCSIPI_DEBUG_TYPE
52#define	SCSIPI_DEBUG_TYPE	SCSIPI_BUSTYPE_ATAPI
53#endif
54
55#ifndef SCSIPI_DEBUG_TARGET
56#define	SCSIPI_DEBUG_TARGET	-1	/* disabled */
57#endif
58
59#ifndef	SCSIPI_DEBUG_LUN
60#define	SCSIPI_DEBUG_LUN	0
61#endif
62
63/*
64 * Default debugging flags for above.
65 */
66#ifndef SCSIPI_DEBUG_FLAGS
67#define	SCSIPI_DEBUG_FLAGS	(SCSIPI_DB1|SCSIPI_DB2|SCSIPI_DB3)
68#endif
69
70#ifdef SCSIPI_DEBUG
71#define	SC_DEBUG(periph, flags, x)					\
72do {									\
73	if ((periph)->periph_dbflags & (flags)) {			\
74		scsipi_printaddr((periph));				\
75		printf x ;						\
76	}								\
77} while (0)
78
79#define	SC_DEBUGN(periph, flags, x)					\
80do {									\
81	if ((periph)->periph_dbflags & (flags))				\
82		printf x ;						\
83} while (0)
84#else
85#define	SC_DEBUG(periph, flags, x)	/* nothing */
86#define	SC_DEBUGN(periph, flags, x)	/* nothing */
87#endif