Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/i386ps2/hdreg.h
Version:
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1 /* 2 * Mach Operating System 3 * Copyright (c) 1991,1989 Carnegie Mellon University 4 * Copyright (c) 1991 IBM Corporation 5 * All Rights Reserved. 6 * 7 * Permission to use, copy, modify and distribute this software and its 8 * documentation is hereby granted, provided that both the copyright 9 * notice and this permission notice appear in all copies of the 10 * software, derivative works or modified versions, and any portions 11 * thereof, and that both notices appear in supporting documentation, 12 * and that the name IBM not be used in advertising or publicity 13 * pertaining to distribution of the software without specific, written 14 * prior permission. 15 * 16 * CARNEGIE MELLON AND IBM ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS IS" 17 * CONDITION. CARNEGIE MELLON AND IBM DISCLAIM ANY LIABILITY OF ANY KIND FOR 18 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 19 * 20 * Carnegie Mellon requests users of this software to return to 21 * 22 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 23 * School of Computer Science 24 * Carnegie Mellon University 25 * Pittsburgh PA 15213-3890 26 * 27 * any improvements or extensions that they make and grant Carnegie Mellon 28 * the rights to redistribute these changes. 29 */ 30 31 /* 32 * HISTORY 33 * $Log: hdreg.h,v $ 34 * Revision 2.3 93/03/11 14:09:25 danner 35 * u_long -> u_int 36 * [93/03/09 danner] 37 * 38 * Revision 2.2 93/02/04 08:00:04 danner 39 * Integrate PS2 code from IBM. 40 * [93/01/18 prithvi] 41 * 42 * Revision 1.2 90/08/16 16:04:24 relyea 43 * fix problems which blew GCC out of the water. 44 * 45 * Revision 1.1 90/08/07 10:28:01 chuckr 46 * Initial revision 47 * 48 * Revision 1.1 90/02/23 00:27:23 devrcs 49 * Updated for osc.5 build. 50 * [90/02/20 16:05:16 kevins] 51 * 52 * Revision 1.5 89/09/09 15:22:00 rvb 53 * hd.h -> hdreg.h; hd.h is now use for configuration. 54 * [89/09/09 rvb] 55 * 56 * Revision 1.4 89/07/17 10:40:31 rvb 57 * Olivetti Changes to X79 upto 5/9/89: 58 * [89/07/11 rvb] 59 * 60 * Revision 1.3 89/02/26 12:36:47 gm0w 61 * Changes for cleanup. 62 * 63 */ 64 65 /* 66 * INTEL CORPORATION PROPRIETARY INFORMATION 67 * 68 * This software is supplied under the terms of a license 69 * agreement or nondisclosure agreement with Intel Corpo- 70 * ration and may not be copied or disclosed except in 71 * accordance with the terms of that agreement. 72 * Copyright 1988 Intel Corporation. 73 */ 74 75 #include <platforms.h> 76 77 #define BOOTRECORDSIGNATURE (0x55aa & 0x00ff) 78 #define FIXED_DISK_REG 0x3f6 79 #define MORETHAN8HEADS 0x008 80 #define EIGHTHEADSORLESS 0x000 81 #define FIXEDBITS 0x0a0 82 83 #define PORT_DATA 0x1f0 84 #define PORT_ERROR 0x1f1 85 #define PORT_PRECOMP 0x1f1 86 #define PORT_NSECTOR 0x1f2 87 #define PORT_SECTOR 0x1f3 88 #define PORT_CYLINDERLOWBYTE 0x1f4 89 #define PORT_CYLINDERHIBYTE 0x1f5 90 #define PORT_DRIVE_HEADREGISTER 0x1f6 91 #define PORT_STATUS 0x1f7 92 #define PORT_COMMAND 0x1f7 93 94 #define STAT_BUSY 0x080 95 #define STAT_READY 0x040 96 #define STAT_WRITEFAULT 0x020 97 #define STAT_SEEKDONE 0x010 98 #define STAT_DATAREQUEST 0x008 99 #define STAT_ECC 0x004 100 #define STAT_INDEX 0x002 101 #define STAT_ERROR 0x001 102 103 #define CMD_RESTORE 0x010 104 #define CMD_SEEK 0x070 105 #define CMD_READ 0x020 106 #define CMD_WRITE 0x030 107 #define CMD_FORMAT 0x050 108 #define CMD_READVERIFY 0x040 109 #define CMD_DIAGNOSE 0x090 110 #define CMD_SETPARAMETERS 0x091 111 112 #define ERROR_BBD 0x80 113 #define ERROR_ECC 0x40 114 115 #define MAX_RETRIES 5 116 #define MAX_ALTBUFS 4 117 118 #define PATIENCE 3000000 /* how long to wait for controller */ 119 #define PARTITION(z) (minor(z) & 0x0f) 120 #define UNIT(z) ( (minor(z) >> 4) & 0x01) 121 #define GOINGUP 1 122 #define GOINGDOWN 0 123 124 #define PDLOCATION 29 125 #define GETALTTBL ( ('H' <<8) | 1) 126 #define FMTBAD ( ('H' <<8) | 2) 127 #define BAD_BLK 0x80 /* needed for V_VERIFY */ 128 129 #define NDRIVES 2 130 #define NLIDS 2 /* number of LIDS allocated to abios disks */ 131 #define SECSIZE 512 132 #define u_char unsigned char 133 #define u_int unsigned int 134 135 #define GDDEBUG_MISC BIT16 136 #define GDDEBUG_START BIT17 137 #define GDDEBUG_MINCNT BIT18 138 139 #ifndef B_VERIFY 140 #define B_VERIFY 0x02000000 /* JD_XXX needed by hd */ 141 #endif 142 #ifndef B_FORMAT 143 #define B_FORMAT 0x04000000 144 #endif 145 146 #define STRAT_NORMAL 0x01 147 #define STRAT_URGENT 0xff 148 149 #define PAGESIZ 4096 150 #define BOOT_OFFSET 256 /* 256 blocks or 128k of boot code. */ 151 152 /* The following macro returns the proper pmap for a virtual address. 153 */ 154 #ifdef MACH_KERNEL 155 #define get_pmap(bp) (kernel_pmap) /* no b_proc to use! */ 156 #else MACH_KERNEL 157 #define get_pmap(bp) ( ((bp)->b_proc) ?\ 158 (bp)->b_proc->task->map->pmap :\ 159 kernel_pmap ) 160 #endif MACH_KERNEL 161 /* The following macro returns a page aligned address given the address of a 162 * buffer. 163 */ 164 #define ADDR(A) (caddr_t)((((long)(A)) + (I386_PGBYTES - 1)) \ 165 & ~ (I386_PGBYTES - 1)) 166 /* The following macro returns the virtual address in a given buf struct. 167 */ 168 #define paddr(X) (paddr_t)(X->b_un.b_addr) 169 #define b_cylin b_resid 170 171 #ifndef NULL 172 #define NULL 0 173 #endif 174 175 #ifndef HZ 176 #define HZ 100 177 #endif 178 179 #define retry_count retries 180 181 typedef struct { 182 unsigned short ncylinders; 183 unsigned short nheads; 184 unsigned short precomp; 185 unsigned short landzone; 186 unsigned short nsecpertrack; 187 unsigned short flags; /* flags from abios */ 188 unsigned short retries; /* suggested number of retries */ 189 unsigned char lid; /* Logical ID */ 190 unsigned char unit; /* unit on LID */ 191 unsigned long nblocks; 192 unsigned long altinfo_loc; 193 unsigned long max_transfer; /* maximum number of blocks to transfer */ 194 } hdisk_t; 195 196 typedef struct { 197 caddr_t phys_addr; 198 unsigned long count; 199 } saveaddr_t; 200 201 /* hh holds the state of the one and only (stupid board) current 202 block I/O request 203 */ 204 205 struct hh { 206 int un_aligned; 207 u_char curdrive; 208 u_char busy; 209 u_char retries; /* # of times cmd has been tried */ 210 u_char num_units; 211 u_short status; 212 u_char restoring; 213 u_char format_request; 214 #ifndef PS2 215 u_char interleave_tab[SECSIZE]; 216 #endif 217 u_int format_track; 218 u_char absolute_sector; 219 u_int single_mode; 220 u_int block_is_bad; 221 daddr_t physblock; 222 u_int substituteblock; 223 u_int substitutetrack; 224 paddr_t rw_addr; 225 paddr_t vert_addr; 226 u_int phys_addr; 227 u_int cylinder; 228 u_int head; 229 u_int sector; 230 u_int blockcount; 231 u_int numblocks; 232 u_int blocktotal; 233 u_int start_of_unix[NDRIVES]; 234 int sleep; 235 }; 236 237 /* the boot record partition table is documented in IBM AT Tech. Ref p. 9-6 */ 238 struct boot_record { 239 u_char boot_ind; /* if it == 0x80, this partition is active */ 240 u_char head; /* driver does not look at this field */ 241 u_char sector; /* driver does not look at this field */ 242 u_char cylinder; /* driver does not look at this field */ 243 244 u_char sys_type; /* Indicates the system type. */ 245 u_char end_head; /* driver does not look at this field */ 246 u_char end_sector; /* driver does not look at this field */ 247 u_char end_cylinder; /* driver does not look at this field */ 248 249 u_int rel_sect; /* where unix starts if boot_ind == 0x80 */ 250 u_int num_sects; /* driver does not look at this field */ 251 }; 252
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