usr/src/cmd/format/param.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #ifndef _PARAM_H
  28 #define _PARAM_H
  29
  30 #ifdef  __cplusplus
  31 extern "C" {
  32 #endif
  33
  34 #ifndef UINT16_MAX
  35 #define UINT16_MAX      0xffffU
  36 #endif
  37
  38 #ifndef UINT32_MAX
  39 #define UINT32_MAX      0xffffffffU
  40 #endif
  41
  42 #ifndef INT32_MAX
  43 #define INT32_MAX       0x7fffffff
  44 #endif
  45
  46 /*
  47  * This file contains declarations of miscellaneous parameters.
  48  */
  49 #ifndef SECSIZE
  50 #define SECSIZE         DEV_BSIZE
  51 #endif
  52
  53 #define MAX_CYLS        (0x10000 - 1)           /* max legal cylinder count */
  54 #define MAX_HEADS       (0x10000 - 1)           /* max legal head count */
  55 #define MAX_SECTS       (0x10000 - 1)           /* max legal sector count */
  56
  57 #define MIN_RPM         2000                    /* min legal rpm */
  58 #define AVG_RPM         3600                    /* default rpm */
  59 #define MAX_RPM         76000                   /* max legal rpm */
  60
  61 #define MIN_BPS         512                     /* min legal bytes/sector */
  62 #define AVG_BPS         600                     /* default bytes/sector */
  63 #define MAX_BPS         1000                    /* max legal bytes/sector */
  64
  65 #define INFINITY        0xffffffffU             /* a big number */
  66
  67 #define MAXBLKS(heads, spt)     UINT16_MAX * heads * spt, heads, spt
  68 #ifdef  __cplusplus
  69 }
  70 #endif
  71
  72 #endif  /* _PARAM_H */