i386/libsaio/saio_types.h

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /* Useful types. */
  26
  27 #ifndef __LIBSAIO_SAIO_TYPES_H
  28 #define __LIBSAIO_SAIO_TYPES_H
  29
  30 #include <sys/reboot.h>
  31 #include <sys/types.h>
  32 #include "bios.h"
  33 #include "nbp_cmd.h"
  34 #include <pexpert/i386/boot.h>
  35
  36 #if DEBUG
  37 #define DEBUG_DISK(x)    printf x
  38 #else
  39 #define DEBUG_DISK(x)
  40 #endif
  41
  42 typedef char BOOL;
  43 #define NO   0
  44 #define YES  1
  45
  46 typedef unsigned long entry_t;
  47
  48 typedef struct {
  49     unsigned int sectors:8;
  50     unsigned int heads:8;
  51     unsigned int cylinders:16;
  52 } compact_diskinfo_t;
  53
  54 struct driveParameters {
  55     int cylinders;
  56     int sectors;
  57     int heads;
  58     int totalDrives;
  59 };
  60
  61 struct driveInfo {
  62     boot_drive_info_t di;
  63     int uses_ebios;
  64     int no_emulation;
  65     int biosdev;
  66     int valid;
  67 };
  68
  69
  70 struct         BootVolume;
  71 typedef struct BootVolume * BVRef;
  72 typedef struct BootVolume * CICell;
  73
  74 typedef long (*FSInit)(CICell ih);
  75 typedef long (*FSLoadFile)(CICell ih, char * filePath);
  76 typedef long (*FSGetDirEntry)(CICell ih, char * dirPath, long * dirIndex,
  77                               char ** name, long * flags, long * time);
  78 typedef void (*BVGetDescription)(CICell ih, char * str, long strMaxLen);
  79
  80 struct iob {
  81     unsigned int   i_flgs;          /* see F_* below */
  82     unsigned int   i_offset;        /* seek byte offset in file */
  83     int            i_filesize;      /* size of file */
  84     char *         i_buf;           /* file load address */
  85 };
  86
  87 #define F_READ     0x1              /* file opened for reading */
  88 #define F_WRITE    0x2              /* file opened for writing */
  89 #define F_ALLOC    0x4              /* buffer allocated */
  90 #define F_FILE     0x8              /* file instead of device */
  91 #define F_NBSF     0x10             /* no bad sector forwarding */
  92 #define F_SSI      0x40             /* set skip sector inhibit */
  93 #define F_MEM      0x80             /* memory instead of file or device */
  94
  95 struct dirstuff {
  96     char *         dir_path;        /* directory path */
  97     long           dir_index;       /* directory entry index */
  98     BVRef          dir_bvr;         /* volume reference */
  99 };
 100
 101 #define BVSTRLEN 32
 102
 103 struct BootVolume {
 104     BVRef            next;            /* list linkage pointer */
 105     int              biosdev;         /* BIOS device number */
 106     int              type;            /* device type (floppy, hd, network) */
 107     unsigned int     flags;           /* attribute flags */
 108     BVGetDescription description;     /* BVGetDescription function */
 109     int              part_no;         /* partition number (1 based) */
 110     unsigned int     part_boff;       /* partition block offset */
 111     unsigned int     part_type;       /* partition type */
 112     unsigned int     fs_boff;         /* 1st block # of next read */
 113     FSLoadFile       fs_loadfile;     /* FSLoadFile function */
 114     FSGetDirEntry    fs_getdirentry;  /* FSGetDirEntry function */
 115     unsigned int     bps;             /* bytes per sector for this device */
 116     char             name[BVSTRLEN];  /* (name of partition) */
 117     char             type_name[BVSTRLEN]; /* (type of partition, eg. Apple_HFS) */
 118
 119 };
 120
 121 enum {
 122     kBVFlagPrimary     = 0x01,
 123     kBVFlagNativeBoot  = 0x02,
 124     kBVFlagForeignBoot = 0x04
 125 };
 126
 127 enum {
 128     kBIOSDevTypeFloppy    = 0x00,
 129     kBIOSDevTypeHardDrive = 0x80,
 130     kBIOSDevTypeNetwork   = 0xE0,
 131     kBIOSDevUnitMask      = 0x0F,
 132     kBIOSDevTypeMask      = 0xF0,
 133     kBIOSDevMask          = 0xFF
 134 };
 135
 136 //#define BIOS_DEV_TYPE(d)  ((d) & kBIOSDevTypeMask)
 137 #define BIOS_DEV_UNIT(bvr)  ((bvr)->biosdev - (bvr)->type)
 138
 139 /*
 140  * KernBootStruct device types.
 141  */
 142 enum {
 143     DEV_SD = 0,
 144     DEV_HD = 1,
 145     DEV_FD = 2,
 146     DEV_EN = 3
 147 };
 148
 149 #ifndef max
 150 #define max(a,b) ((a) > (b) ? (a) : (b))
 151 #endif
 152
 153 #ifndef min
 154 #define min(a,b) ((a) < (b) ? (a) : (b))
 155 #endif
 156
 157 #define MAKEKERNDEV(t, u, p)  MAKEBOOTDEV(t, 0, 0, u, p)
 158
 159 enum {
 160     kNetworkDeviceType = kBIOSDevTypeNetwork,
 161     kBlockDeviceType   = kBIOSDevTypeHardDrive
 162 } gBootFileType_t;
 163
 164 #endif /* !__LIBSAIO_SAIO_TYPES_H */