i386/libsaio/saio_types.h

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
   7  * Reserved.  This file contains Original Code and/or Modifications of
   8  * Original Code as defined in and that are subject to the Apple Public
   9  * Source License Version 1.1 (the "License").  You may not use this file
  10  * except in compliance with the License.  Please obtain a copy of the
  11  * License at http://www.apple.com/publicsource and read it before using
  12  * this file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT.  Please see the
  19  * License for the specific language governing rights and limitations
  20  * under the License.
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24 /* Useful types. */
  25
  26 #ifndef __LIBSAIO_SAIO_TYPES_H
  27 #define __LIBSAIO_SAIO_TYPES_H
  28
  29 #include <sys/reboot.h>
  30 #include <sys/types.h>
  31 #include "bios.h"
  32 #include "nbp_cmd.h"
  33
  34 #if 0
  35 #define DEBUG_DISK(x)    printf x
  36 #else
  37 #define DEBUG_DISK(x)
  38 #endif
  39
  40 typedef char BOOL;
  41 #define NO   0
  42 #define YES  1
  43
  44 typedef unsigned long entry_t;
  45
  46 typedef struct {
  47     unsigned int sectors:8;
  48     unsigned int heads:8;
  49     unsigned int cylinders:16;
  50 } compact_diskinfo_t;
  51
  52 struct driveParameters {
  53     int cylinders;
  54     int sectors;
  55     int heads;
  56     int totalDrives;
  57 };
  58
  59 struct         BootVolume;
  60 typedef struct BootVolume * BVRef;
  61 typedef struct BootVolume * CICell;
  62
  63 typedef long (*FSInit)(CICell ih);
  64 typedef long (*FSLoadFile)(CICell ih, char * filePath);
  65 typedef long (*FSGetDirEntry)(CICell ih, char * dirPath, long * dirIndex,
  66                               char ** name, long * flags, long * time);
  67 typedef void (*BVGetDescription)(CICell ih, char * str, long strMaxLen);
  68
  69 struct iob {
  70     unsigned int   i_flgs;          /* see F_* below */
  71     unsigned int   i_offset;        /* seek byte offset in file */
  72     int            i_filesize;      /* size of file */
  73     char *         i_buf;           /* file load address */
  74 };
  75
  76 #define F_READ     0x1              /* file opened for reading */
  77 #define F_WRITE    0x2              /* file opened for writing */
  78 #define F_ALLOC    0x4              /* buffer allocated */
  79 #define F_FILE     0x8              /* file instead of device */
  80 #define F_NBSF     0x10             /* no bad sector forwarding */
  81 #define F_SSI      0x40             /* set skip sector inhibit */
  82 #define F_MEM      0x80             /* memory instead of file or device */
  83
  84 struct dirstuff {
  85     char *         dir_path;        /* directory path */
  86     long           dir_index;       /* directory entry index */
  87     BVRef          dir_bvr;         /* volume reference */
  88 };
  89
  90 struct BootVolume {
  91     BVRef            next;            /* list linkage pointer */
  92     int              biosdev;         /* BIOS device number */
  93     unsigned int     flags;           /* attribute flags */
  94     BVGetDescription description;     /* BVGetDescription function */
  95     int              part_no;         /* partition number (1 based) */
  96     unsigned int     part_boff;       /* partition block offset */
  97     unsigned int     part_type;       /* partition type */
  98     unsigned int     fs_boff;         /* 1st block # of next read */
  99     FSLoadFile       fs_loadfile;     /* FSLoadFile function */
 100     FSGetDirEntry    fs_getdirentry;  /* FSGetDirEntry function */
 101 };
 102
 103 enum {
 104     kBVFlagPrimary     = 0x01,
 105     kBVFlagNativeBoot  = 0x02,
 106     kBVFlagForeignBoot = 0x04
 107 };
 108
 109 enum {
 110     kBIOSDevTypeFloppy    = 0x00,
 111     kBIOSDevTypeHardDrive = 0x80,
 112     kBIOSDevTypeNetwork   = 0xE0,
 113     kBIOSDevUnitMask      = 0x0F,
 114     kBIOSDevTypeMask      = 0xF0,
 115     kBIOSDevMask          = 0xFF
 116 };
 117
 118 #define BIOS_DEV_TYPE(d)  ((d) & kBIOSDevTypeMask)
 119 #define BIOS_DEV_UNIT(d)  ((d) & kBIOSDevUnitMask)
 120
 121 /*
 122  * KernBootStruct device types.
 123  */
 124 enum {
 125     DEV_SD = 0,
 126     DEV_HD = 1,
 127     DEV_FD = 2,
 128     DEV_EN = 3
 129 };
 130
 131 #ifndef max
 132 #define max(a,b) ((a) > (b) ? (a) : (b))
 133 #endif
 134
 135 #ifndef min
 136 #define min(a,b) ((a) < (b) ? (a) : (b))
 137 #endif
 138
 139 #define MAKEKERNDEV(t, u, p)  MAKEBOOTDEV(t, 0, 0, u, p)
 140
 141 #endif /* !__LIBSAIO_SAIO_TYPES_H */