sys/dev/scsipi/scsipi_debug.h

   1 /*      $NetBSD: scsipi_debug.h,v 1.16 2005/12/11 12:23:50 christos 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)                                      \
  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