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 #include <pexpert/i386/boot.h>
  34
  35 #if DEBUG
  36 #define DEBUG_DISK(x)    printf x
  37 #else
  38 #define DEBUG_DISK(x)
  39 #endif
  40
  41 typedef char BOOL;
  42 #define NO   0
  43 #define YES  1
  44
  45 typedef unsigned long entry_t;
  46
  47 typedef struct {
  48     unsigned int sectors:8;
  49     unsigned int heads:8;
  50     unsigned int cylinders:16;
  51 } compact_diskinfo_t;
  52
  53 struct driveParameters {
  54     int cylinders;
  55     int sectors;
  56     int heads;
  57     int totalDrives;
  58 };
  59
  60 struct driveInfo {
  61     boot_drive_info_t di;
  62     int uses_ebios;
  63     int no_emulation;
  64     int biosdev;
  65     int valid;
  66 };
  67
  68
  69 struct         BootVolume;
  70 typedef struct BootVolume * BVRef;
  71 typedef struct BootVolume * CICell;
  72
  73 typedef long (*FSInit)(CICell ih);
  74 typedef long (*FSLoadFile)(CICell ih, char * filePath);
  75 typedef long (*FSGetDirEntry)(CICell ih, char * dirPath, long * dirIndex,
  76                               char ** name, long * flags, long * time);
  77 typedef void (*BVGetDescription)(CICell ih, char * str, long strMaxLen);
  78
  79 struct iob {
  80     unsigned int   i_flgs;          /* see F_* below */
  81     unsigned int   i_offset;        /* seek byte offset in file */
  82     int            i_filesize;      /* size of file */
  83     char *         i_buf;           /* file load address */
  84 };
  85
  86 #define F_READ     0x1              /* file opened for reading */
  87 #define F_WRITE    0x2              /* file opened for writing */
  88 #define F_ALLOC    0x4              /* buffer allocated */
  89 #define F_FILE     0x8              /* file instead of device */
  90 #define F_NBSF     0x10             /* no bad sector forwarding */
  91 #define F_SSI      0x40             /* set skip sector inhibit */
  92 #define F_MEM      0x80             /* memory instead of file or device */
  93
  94 struct dirstuff {
  95     char *         dir_path;        /* directory path */
  96     long           dir_index;       /* directory entry index */
  97     BVRef          dir_bvr;         /* volume reference */
  98 };
  99
 100 #define BVSTRLEN 32
 101
 102 struct BootVolume {
 103     BVRef            next;            /* list linkage pointer */
 104     int              biosdev;         /* BIOS device number */
 105     int              type;            /* device type (floppy, hd, network) */
 106     unsigned int     flags;           /* attribute flags */
 107     BVGetDescription description;     /* BVGetDescription function */
 108     int              part_no;         /* partition number (1 based) */
 109     unsigned int     part_boff;       /* partition block offset */
 110     unsigned int     part_type;       /* partition type */
 111     unsigned int     fs_boff;         /* 1st block # of next read */
 112     FSLoadFile       fs_loadfile;     /* FSLoadFile function */
 113     FSGetDirEntry    fs_getdirentry;  /* FSGetDirEntry function */
 114     unsigned int     bps;             /* bytes per sector for this device */
 115     char             name[BVSTRLEN];  /* (name of partition) */
 116     char             type_name[BVSTRLEN]; /* (type of partition, eg. Apple_HFS) */
 117
 118 };
 119
 120 enum {
 121     kBVFlagPrimary     = 0x01,
 122     kBVFlagNativeBoot  = 0x02,
 123     kBVFlagForeignBoot = 0x04
 124 };
 125
 126 enum {
 127     kBIOSDevTypeFloppy    = 0x00,
 128     kBIOSDevTypeHardDrive = 0x80,
 129     kBIOSDevTypeNetwork   = 0xE0,
 130     kBIOSDevUnitMask      = 0x0F,
 131     kBIOSDevTypeMask      = 0xF0,
 132     kBIOSDevMask          = 0xFF
 133 };
 134
 135 //#define BIOS_DEV_TYPE(d)  ((d) & kBIOSDevTypeMask)
 136 #define BIOS_DEV_UNIT(bvr)  ((bvr)->biosdev - (bvr)->type)
 137
 138 /*
 139  * KernBootStruct device types.
 140  */
 141 enum {
 142     DEV_SD = 0,
 143     DEV_HD = 1,
 144     DEV_FD = 2,
 145     DEV_EN = 3
 146 };
 147
 148 #ifndef max
 149 #define max(a,b) ((a) > (b) ? (a) : (b))
 150 #endif
 151
 152 #ifndef min
 153 #define min(a,b) ((a) < (b) ? (a) : (b))
 154 #endif
 155
 156 #define MAKEKERNDEV(t, u, p)  MAKEBOOTDEV(t, 0, 0, u, p)
 157
 158 enum {
 159     kNetworkDeviceType = kBIOSDevTypeNetwork,
 160     kBlockDeviceType   = kBIOSDevTypeHardDrive
 161 } gBootFileType_t;
 162
 163 #endif /* !__LIBSAIO_SAIO_TYPES_H */