Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/i386/pic.h
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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: pic.h,v $ 29 * Revision 2.11 93/02/04 07:56:50 danner 30 * Added PS2 to #ifdef AT386 cases. 31 * [93/01/25 rvb] 32 * 33 * Revision 2.10 91/06/19 11:55:24 rvb 34 * cputypes.h->platforms.h 35 * [91/06/12 13:45:13 rvb] 36 * 37 * Revision 2.9 91/05/14 16:14:02 mrt 38 * Correcting copyright 39 * 40 * Revision 2.8 91/05/08 12:41:27 dbg 41 * Use platforms.h to get CPU names. 42 * [91/03/21 dbg] 43 * 44 * Revision 2.7 91/02/05 17:13:51 mrt 45 * Changed to new Mach copyright 46 * [91/02/01 17:36:57 mrt] 47 * 48 * Revision 2.6 90/12/04 14:46:25 jsb 49 * iPSC2 -> iPSC386. 50 * [90/12/04 11:17:51 jsb] 51 * 52 * Revision 2.5 90/11/26 16:27:50 rvb 53 * It appears that I_AM_A_{SLAVE,MASTER} were always wrong 54 * but iPSC386 seems to care. 55 * 56 * Revision 2.4 90/11/26 14:48:39 rvb 57 * Change Prime copyright as per Peter J. Weyman authorization. 58 * [90/11/19 rvb] 59 * 60 * Revision 2.2.1.2 90/07/10 11:42:35 rvb 61 * EXL out 62 * iPSC386 in 63 * [90/06/18 rvb] 64 * 65 * Revision 2.2.1.1 89/10/22 11:31:25 rvb 66 * Flush stuff that belongs in pic.c -- undoe damage of Prime merge. 67 * [89/10/20 rvb] 68 * 69 * Revision 2.2 89/09/25 12:32:34 rvb 70 * This is UNPUBLISHED PROPRIETARY SOURCE CODE of Prime Computer, Inc. 71 * [89/09/23 rvb] 72 * 73 */ 74 75 /* 76 Copyright (c) 1988,1989 Prime Computer, Inc. Natick, MA 01760 77 All Rights Reserved. 78 79 Permission to use, copy, modify, and distribute this 80 software and its documentation for any purpose and 81 without fee is hereby granted, provided that the above 82 copyright notice appears in all copies and that both the 83 copyright notice and this permission notice appear in 84 supporting documentation, and that the name of Prime 85 Computer, Inc. not be used in advertising or publicity 86 pertaining to distribution of the software without 87 specific, written prior permission. 88 89 THIS SOFTWARE IS PROVIDED "AS IS", AND PRIME COMPUTER, 90 INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS 91 SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 92 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN 93 NO EVENT SHALL PRIME COMPUTER, INC. BE LIABLE FOR ANY 94 SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY 95 DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 96 PROFITS, WHETHER IN ACTION OF CONTRACT, NEGLIGENCE, OR 97 OTHER TORTIOUS ACTION, ARISING OUR OF OR IN CONNECTION 98 WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 99 */ 100 101 #ifndef _I386_PIC_H_ 102 #define _I386_PIC_H_ 103 104 #include <platforms.h> 105 106 #define NINTR 0x10 107 #define NPICS 0x02 108 109 /* 110 ** The following are definitions used to locate the PICs in the system 111 */ 112 113 #if defined(AT386) || defined(PS2) 114 #define ADDR_PIC_BASE 0x20 115 #define OFF_ICW 0x00 116 #define OFF_OCW 0x01 117 #define SIZE_PIC 0x80 118 #endif /* defined(AT386) || defined(PS2) */ 119 120 #ifdef iPSC386 121 #define ADDR_PIC_BASE 0xC0 122 #define OFF_ICW 0x00 123 #define OFF_OCW 0x02 124 #define SIZE_PIC 0x04 125 #endif iPSC386 126 127 /* 128 ** The following banks of definitions ICW1, ICW2, ICW3, and ICW4 are used 129 ** to define the fields of the various ICWs for initialisation of the PICs 130 */ 131 132 /* 133 ** ICW1 134 */ 135 136 #define ICW_TEMPLATE 0x10 137 138 #define LEVL_TRIGGER 0x08 139 #define EDGE_TRIGGER 0x00 140 #define ADDR_INTRVL4 0x04 141 #define ADDR_INTRVL8 0x00 142 #define SINGLE__MODE 0x02 143 #define CASCADE_MODE 0x00 144 #define ICW4__NEEDED 0x01 145 #define NO_ICW4_NEED 0x00 146 147 /* 148 ** ICW2 149 */ 150 151 #if defined(AT386) || defined(PS2) 152 #define PICM_VECTBASE 0x40 153 #define PICS_VECTBASE PICM_VECTBASE + 0x08 154 #endif /* defined(AT386) || defined(PS2) */ 155 156 #ifdef iPSC386 157 #define PICM_VECTBASE 0x40 158 #define PICS_VECTBASE PICM_VECTBASE + 0x08 159 #endif iPSC386 160 161 /* 162 ** ICW3 163 */ 164 165 #define SLAVE_ON_IR0 0x01 166 #define SLAVE_ON_IR1 0x02 167 #define SLAVE_ON_IR2 0x04 168 #define SLAVE_ON_IR3 0x08 169 #define SLAVE_ON_IR4 0x10 170 #define SLAVE_ON_IR5 0x20 171 #define SLAVE_ON_IR6 0x40 172 #define SLAVE_ON_IR7 0x80 173 174 #define I_AM_SLAVE_0 0x00 175 #define I_AM_SLAVE_1 0x01 176 #define I_AM_SLAVE_2 0x02 177 #define I_AM_SLAVE_3 0x03 178 #define I_AM_SLAVE_4 0x04 179 #define I_AM_SLAVE_5 0x05 180 #define I_AM_SLAVE_6 0x06 181 #define I_AM_SLAVE_7 0x07 182 183 /* 184 ** ICW4 185 */ 186 187 #define SNF_MODE_ENA 0x10 188 #define SNF_MODE_DIS 0x00 189 #define BUFFERD_MODE 0x08 190 #define NONBUFD_MODE 0x00 191 #if iPSC386 192 #define I_AM_A_SLAVE 0x00 193 #define I_AM_A_MASTR 0x04 194 #endif iPSC386 195 #define AUTO_EOI_MOD 0x02 196 #define NRML_EOI_MOD 0x00 197 #define I8086_EMM_MOD 0x01 198 #define SET_MCS_MODE 0x00 199 200 /* 201 ** OCW1 202 */ 203 #define PICM_MASK 0xFF 204 #define PICS_MASK 0xFF 205 /* 206 ** OCW2 207 */ 208 209 #define NON_SPEC_EOI 0x20 210 #define SPECIFIC_EOI 0x30 211 #define ROT_NON_SPEC 0x50 212 #define SET_ROT_AEOI 0x40 213 #define RSET_ROTAEOI 0x00 214 #define ROT_SPEC_EOI 0x70 215 #define SET_PRIORITY 0x60 216 #define NO_OPERATION 0x20 217 218 #define SEND_EOI_IR0 0x00 219 #define SEND_EOI_IR1 0x01 220 #define SEND_EOI_IR2 0x02 221 #define SEND_EOI_IR3 0x03 222 #define SEND_EOI_IR4 0x04 223 #define SEND_EOI_IR5 0x05 224 #define SEND_EOI_IR6 0x06 225 #define SEND_EOI_IR7 0x07 226 227 /* 228 ** OCW3 229 */ 230 231 #define OCW_TEMPLATE 0x08 232 #define SPECIAL_MASK 0x40 233 #define MASK_MDE_SET 0x20 234 #define MASK_MDE_RST 0x00 235 #define POLL_COMMAND 0x04 236 #define NO_POLL_CMND 0x00 237 #define READ_NEXT_RD 0x02 238 #define READ_IR_ONRD 0x00 239 #define READ_IS_ONRD 0x01 240 241 #endif _I386_PIC_H_
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