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scsipi_debug.h revision 1.17 
      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 (at) 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)					\
     72 do {									\
     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)					\
     80 do {									\
     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
     88