Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/i386at/hdreg.h
Version:
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1 /* 2 * Mach Operating System 3 * Copyright (c) 1991,1990,1989 Carnegie Mellon University 4 * All Rights Reserved. 5 * 6 * Permission to use, copy, modify and distribute this software and its 7 * documentation is hereby granted, provided that both the copyright 8 * notice and this permission notice appear in all copies of the 9 * software, derivative works or modified versions, and any portions 10 * thereof, and that both notices appear in supporting documentation. 11 * 12 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 13 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 14 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 15 * 16 * Carnegie Mellon requests users of this software to return to 17 * 18 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 19 * School of Computer Science 20 * Carnegie Mellon University 21 * Pittsburgh PA 15213-3890 22 * 23 * any improvements or extensions that they make and grant Carnegie Mellon 24 * the rights to redistribute these changes. 25 */ 26 /* 27 * HISTORY 28 * $Log: hdreg.h,v $ 29 * Revision 2.7 91/10/07 17:25:45 af 30 * Made port addresses dependent on base address, cleaned up hh struct 31 * [91/08/07 mg32] 32 * 33 * Revision 2.6 91/05/14 16:23:39 mrt 34 * Correcting copyright 35 * 36 * Revision 2.5 91/02/05 17:17:17 mrt 37 * Changed to new Mach copyright 38 * [91/02/01 17:43:16 mrt] 39 * 40 * Revision 2.4 90/11/26 14:49:40 rvb 41 * jsb bet me to XMK34, sigh ... 42 * [90/11/26 rvb] 43 * Synched 2.5 & 3.0 at I386q (r1.5.1.5) & XMK35 (r2.4) 44 * [90/11/15 rvb] 45 * 46 * Revision 1.5.1.4 90/07/27 11:25:57 rvb 47 * Fix Intel Copyright as per B. Davies authorization. 48 * [90/07/27 rvb] 49 * 50 * Revision 2.2 90/05/03 15:42:24 dbg 51 * First checkin. 52 * 53 * Revision 1.5.1.3 90/03/29 18:59:52 rvb 54 * Added some more ERROR_ codes. 55 * [90/03/28 rvb] 56 * 57 * Revision 1.5.1.2 90/01/08 13:31:35 rvb 58 * Add Intel copyright. 59 * [90/01/08 rvb] 60 * 61 * Revision 1.5.1.1 89/12/21 18:00:06 rvb 62 * Changes from Eugene: 63 * 1) ERROR_BBD, ERROR_ECC, MAX_RETRIES, MAX_ALTBUFS 64 * 2) field rename in hh: 65 * controller_busy, retry_count, restore_request 66 * [89/12/07 rvb] 67 * 68 * Revision 1.5 89/09/09 15:22:00 rvb 69 * hd.h -> hdreg.h; hd.h is now use for configuration. 70 * [89/09/09 rvb] 71 * 72 * Revision 1.4 89/07/17 10:40:31 rvb 73 * Olivetti Changes to X79 upto 5/9/89: 74 * [89/07/11 rvb] 75 * 76 * Revision 1.3 89/02/26 12:36:47 gm0w 77 * Changes for cleanup. 78 * 79 */ 80 81 /* 82 Copyright 1988, 1989 by Intel Corporation, Santa Clara, California. 83 84 All Rights Reserved 85 86 Permission to use, copy, modify, and distribute this software and 87 its documentation for any purpose and without fee is hereby 88 granted, provided that the above copyright notice appears in all 89 copies and that both the copyright notice and this permission notice 90 appear in supporting documentation, and that the name of Intel 91 not be used in advertising or publicity pertaining to distribution 92 of the software without specific, written prior permission. 93 94 INTEL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE 95 INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, 96 IN NO EVENT SHALL INTEL BE LIABLE FOR ANY SPECIAL, INDIRECT, OR 97 CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 98 LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, 99 NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION 100 WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 101 */ 102 103 #define BOOTRECORDSIGNATURE (0x55aa & 0x00ff) 104 #define FIXED_DISK_REG(ctrl) ((ctrl)?0x376:0x3f6) 105 #define FIXEDBITS 0x0a0 106 #define WHOLE_DISK(unit) (((unit)<<4)+PART_DISK) 107 108 #define PORT_DATA(addr) (0x0+(addr)) 109 #define PORT_ERROR(addr) (0x1+(addr)) 110 #define PORT_PRECOMP(addr) (0x1+(addr)) 111 #define PORT_NSECTOR(addr) (0x2+(addr)) 112 #define PORT_SECTOR(addr) (0x3+(addr)) 113 #define PORT_CYLINDERLOWBYTE(addr) (0x4+(addr)) 114 #define PORT_CYLINDERHIBYTE(addr) (0x5+(addr)) 115 #define PORT_DRIVE_HEADREGISTER(addr) (0x6+(addr)) 116 #define PORT_STATUS(addr) (0x7+(addr)) 117 #define PORT_COMMAND(addr) (0x7+(addr)) 118 119 #define STAT_BUSY 0x080 120 #define STAT_READY 0x040 121 #define STAT_WRITEFAULT 0x020 122 #define STAT_SEEKDONE 0x010 123 #define STAT_DATAREQUEST 0x008 124 #define STAT_ECC 0x004 125 #define STAT_INDEX 0x002 126 #define STAT_ERROR 0x001 127 128 #define CMD_RESTORE 0x010 129 #define CMD_SEEK 0x070 130 #define CMD_READ 0x020 131 #define CMD_WRITE 0x030 132 #define CMD_FORMAT 0x050 133 #define CMD_READVERIFY 0x040 134 #define CMD_DIAGNOSE 0x090 135 #define CMD_SETPARAMETERS 0x091 136 137 #define PATIENCE 3000000 /* how long to wait for controller */ 138 #define PARTITION(z) (minor(z) & 0x0f) 139 #define UNIT(z) ((minor(z) >> 4) & 0x03) 140 141 #define PDLOCATION 29 142 #define BAD_BLK 0x80 /* needed for V_VERIFY */ 143 144 #define NDRIVES 2 /* drives per controller */ 145 #define SECSIZE 512 146 147 /* hh holds the state of the one and only (stupid board) current 148 block I/O request 149 */ 150 151 struct hh { 152 u_char curdrive; /* drive the controller is using */ 153 u_char controller_busy; /* controller can't take cmd now */ 154 u_char retry_count; /* # of times cmd has been tried */ 155 u_char restore_request; /* restore command */ 156 int rw_addr; /* ram addr to read/write sector */ 157 int physblock; /* block # relative to partition 0 */ 158 u_int single_mode; /* 1 = transfer one block each time */ 159 u_int cylinder; /* cylinder # rel. to part. 0 */ 160 u_int head; /* as it looks */ 161 u_int sector; /* as it looks */ 162 u_int blockcount; /* blocks done so far */ 163 u_int blocktotal; /* total blocks this request */ 164 u_int start_of_unix[NDRIVES]; /* unix vs dos partitions */ 165 }; 166 167 /* the boot record partition table is documented in IBM AT Tech. Ref p. 9-6 */ 168 struct boot_record { 169 u_char boot_ind; /* if it == 0x80, this partition is active */ 170 u_char head; /* driver does not look at this field */ 171 u_char sector; /* driver does not look at this field */ 172 u_char cylinder; /* driver does not look at this field */ 173 174 u_char sys_ind; /* driver does not look at this field */ 175 u_char end_head; /* driver does not look at this field */ 176 u_char end_sector; /* driver does not look at this field */ 177 u_char end_cylinder; /* driver does not look at this field */ 178 179 u_int rel_sect; /* where unix starts if boot_ind == 0x80 */ 180 u_int num_sects; /* driver does not look at this field */ 181 };
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