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 2.4 93/11/17 16:53:19 dbg 35 * Removed local definition of 'HZ'. Removed non-MACH_KERNEL code. 36 * [93/09/21 dbg] 37 * 38 * Revision 2.3 93/03/11 14:09:25 danner 39 * u_long -> u_int 40 * [93/03/09 danner] 41 * 42 * Revision 2.2 93/02/04 08:00:04 danner 43 * Integrate PS2 code from IBM. 44 * [93/01/18 prithvi] 45 * 46 * Revision 1.2 90/08/16 16:04:24 relyea 47 * fix problems which blew GCC out of the water. 48 * 49 * Revision 1.1 90/08/07 10:28:01 chuckr 50 * Initial revision 51 * 52 * Revision 1.1 90/02/23 00:27:23 devrcs 53 * Updated for osc.5 build. 54 * [90/02/20 16:05:16 kevins] 55 * 56 * Revision 1.5 89/09/09 15:22:00 rvb 57 * hd.h -> hdreg.h; hd.h is now use for configuration. 58 * [89/09/09 rvb] 59 * 60 * Revision 1.4 89/07/17 10:40:31 rvb 61 * Olivetti Changes to X79 upto 5/9/89: 62 * [89/07/11 rvb] 63 * 64 * Revision 1.3 89/02/26 12:36:47 gm0w 65 * Changes for cleanup. 66 * 67 */ 68 69 /* 70 * INTEL CORPORATION PROPRIETARY INFORMATION 71 * 72 * This software is supplied under the terms of a license 73 * agreement or nondisclosure agreement with Intel Corpo- 74 * ration and may not be copied or disclosed except in 75 * accordance with the terms of that agreement. 76 * Copyright 1988 Intel Corporation. 77 */ 78 79 #include <platforms.h> 80 81 #define BOOTRECORDSIGNATURE (0x55aa & 0x00ff) 82 #define FIXED_DISK_REG 0x3f6 83 #define MORETHAN8HEADS 0x008 84 #define EIGHTHEADSORLESS 0x000 85 #define FIXEDBITS 0x0a0 86 87 #define PORT_DATA 0x1f0 88 #define PORT_ERROR 0x1f1 89 #define PORT_PRECOMP 0x1f1 90 #define PORT_NSECTOR 0x1f2 91 #define PORT_SECTOR 0x1f3 92 #define PORT_CYLINDERLOWBYTE 0x1f4 93 #define PORT_CYLINDERHIBYTE 0x1f5 94 #define PORT_DRIVE_HEADREGISTER 0x1f6 95 #define PORT_STATUS 0x1f7 96 #define PORT_COMMAND 0x1f7 97 98 #define STAT_BUSY 0x080 99 #define STAT_READY 0x040 100 #define STAT_WRITEFAULT 0x020 101 #define STAT_SEEKDONE 0x010 102 #define STAT_DATAREQUEST 0x008 103 #define STAT_ECC 0x004 104 #define STAT_INDEX 0x002 105 #define STAT_ERROR 0x001 106 107 #define CMD_RESTORE 0x010 108 #define CMD_SEEK 0x070 109 #define CMD_READ 0x020 110 #define CMD_WRITE 0x030 111 #define CMD_FORMAT 0x050 112 #define CMD_READVERIFY 0x040 113 #define CMD_DIAGNOSE 0x090 114 #define CMD_SETPARAMETERS 0x091 115 116 #define ERROR_BBD 0x80 117 #define ERROR_ECC 0x40 118 119 #define MAX_RETRIES 5 120 #define MAX_ALTBUFS 4 121 122 #define PATIENCE 3000000 /* how long to wait for controller */ 123 #define PARTITION(z) (minor(z) & 0x0f) 124 #define UNIT(z) ( (minor(z) >> 4) & 0x01) 125 #define GOINGUP 1 126 #define GOINGDOWN 0 127 128 #define PDLOCATION 29 129 #define GETALTTBL ( ('H' <<8) | 1) 130 #define FMTBAD ( ('H' <<8) | 2) 131 #define BAD_BLK 0x80 /* needed for V_VERIFY */ 132 133 #define NDRIVES 2 134 #define NLIDS 2 /* number of LIDS allocated to abios disks */ 135 #define SECSIZE 512 136 #define u_char unsigned char 137 #define u_int unsigned int 138 139 #define GDDEBUG_MISC BIT16 140 #define GDDEBUG_START BIT17 141 #define GDDEBUG_MINCNT BIT18 142 143 #ifndef B_VERIFY 144 #define B_VERIFY 0x02000000 /* JD_XXX needed by hd */ 145 #endif 146 #ifndef B_FORMAT 147 #define B_FORMAT 0x04000000 148 #endif 149 150 #define STRAT_NORMAL 0x01 151 #define STRAT_URGENT 0xff 152 153 #define PAGESIZ 4096 154 #define BOOT_OFFSET 256 /* 256 blocks or 128k of boot code. */ 155 156 /* The following macro returns the proper pmap for a virtual address. 157 */ 158 #define get_pmap(bp) (kernel_pmap) /* no b_proc to use! */ 159 160 /* The following macro returns a page aligned address given the address of a 161 * buffer. 162 */ 163 #define ADDR(A) (caddr_t)((((long)(A)) + (I386_PGBYTES - 1)) \ 164 & ~ (I386_PGBYTES - 1)) 165 /* The following macro returns the virtual address in a given buf struct. 166 */ 167 #define paddr(X) (paddr_t)(X->b_un.b_addr) 168 #define b_cylin b_resid 169 170 #ifndef NULL 171 #define NULL 0 172 #endif 173 174 #ifndef HZ 175 #define HZ hz 176 #endif 177 178 #define retry_count retries 179 180 typedef struct { 181 unsigned short ncylinders; 182 unsigned short nheads; 183 unsigned short precomp; 184 unsigned short landzone; 185 unsigned short nsecpertrack; 186 unsigned short flags; /* flags from abios */ 187 unsigned short retries; /* suggested number of retries */ 188 unsigned char lid; /* Logical ID */ 189 unsigned char unit; /* unit on LID */ 190 unsigned long nblocks; 191 unsigned long altinfo_loc; 192 unsigned long max_transfer; /* maximum number of blocks to transfer */ 193 } hdisk_t; 194 195 typedef struct { 196 caddr_t phys_addr; 197 unsigned long count; 198 } saveaddr_t; 199 200 /* hh holds the state of the one and only (stupid board) current 201 block I/O request 202 */ 203 204 struct hh { 205 int un_aligned; 206 u_char curdrive; 207 u_char busy; 208 u_char retries; /* # of times cmd has been tried */ 209 u_char num_units; 210 u_short status; 211 u_char restoring; 212 u_char format_request; 213 #ifndef PS2 214 u_char interleave_tab[SECSIZE]; 215 #endif 216 u_int format_track; 217 u_char absolute_sector; 218 u_int single_mode; 219 u_int block_is_bad; 220 daddr_t physblock; 221 u_int substituteblock; 222 u_int substitutetrack; 223 paddr_t rw_addr; 224 paddr_t vert_addr; 225 u_int phys_addr; 226 u_int cylinder; 227 u_int head; 228 u_int sector; 229 u_int blockcount; 230 u_int numblocks; 231 u_int blocktotal; 232 u_int start_of_unix[NDRIVES]; 233 int sleep; 234 }; 235 236 /* the boot record partition table is documented in IBM AT Tech. Ref p. 9-6 */ 237 struct boot_record { 238 u_char boot_ind; /* if it == 0x80, this partition is active */ 239 u_char head; /* driver does not look at this field */ 240 u_char sector; /* driver does not look at this field */ 241 u_char cylinder; /* driver does not look at this field */ 242 243 u_char sys_type; /* Indicates the system type. */ 244 u_char end_head; /* driver does not look at this field */ 245 u_char end_sector; /* driver does not look at this field */ 246 u_char end_cylinder; /* driver does not look at this field */ 247 248 u_int rel_sect; /* where unix starts if boot_ind == 0x80 */ 249 u_int num_sects; /* driver does not look at this field */ 250 }; 251
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