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
Version:
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1 /* 2 * Mach Operating System 3 * Copyright (c) 1993,1991,1990,1989 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 2.12 93/11/17 16:38:30 dbg 30 * Added definitions for MASTER_ICW, MASTER_OCW, SLAVE_ICW, 31 * SLAVE_OCW, since these are constant for a configuration 32 * (and common to both ISA and MCA machines). Corrected 33 * definitions of OCW2 operation codes. 34 * [93/10/29 dbg] 35 * 36 * Revision 2.11 93/02/04 07:56:50 danner 37 * Added PS2 to #ifdef AT386 cases. 38 * [93/01/25 rvb] 39 * 40 * Revision 2.10 91/06/19 11:55:24 rvb 41 * cputypes.h->platforms.h 42 * [91/06/12 13:45:13 rvb] 43 * 44 * Revision 2.9 91/05/14 16:14:02 mrt 45 * Correcting copyright 46 * 47 * Revision 2.8 91/05/08 12:41:27 dbg 48 * Use platforms.h to get CPU names. 49 * [91/03/21 dbg] 50 * 51 * Revision 2.7 91/02/05 17:13:51 mrt 52 * Changed to new Mach copyright 53 * [91/02/01 17:36:57 mrt] 54 * 55 * Revision 2.6 90/12/04 14:46:25 jsb 56 * iPSC2 -> iPSC386. 57 * [90/12/04 11:17:51 jsb] 58 * 59 * Revision 2.5 90/11/26 16:27:50 rvb 60 * It appears that I_AM_A_{SLAVE,MASTER} were always wrong 61 * but iPSC386 seems to care. 62 * 63 * Revision 2.4 90/11/26 14:48:39 rvb 64 * Change Prime copyright as per Peter J. Weyman authorization. 65 * [90/11/19 rvb] 66 * 67 * Revision 2.2.1.2 90/07/10 11:42:35 rvb 68 * EXL out 69 * iPSC386 in 70 * [90/06/18 rvb] 71 * 72 * Revision 2.2.1.1 89/10/22 11:31:25 rvb 73 * Flush stuff that belongs in pic.c -- undo damage of Prime merge. 74 * [89/10/20 rvb] 75 * 76 * Revision 2.2 89/09/25 12:32:34 rvb 77 * This is UNPUBLISHED PROPRIETARY SOURCE CODE of Prime Computer, Inc. 78 * [89/09/23 rvb] 79 * 80 */ 81 82 /* 83 Copyright (c) 1988,1989 Prime Computer, Inc. Natick, MA 01760 84 All Rights Reserved. 85 86 Permission to use, copy, modify, and distribute this 87 software and its documentation for any purpose and 88 without fee is hereby granted, provided that the above 89 copyright notice appears in all copies and that both the 90 copyright notice and this permission notice appear in 91 supporting documentation, and that the name of Prime 92 Computer, Inc. not be used in advertising or publicity 93 pertaining to distribution of the software without 94 specific, written prior permission. 95 96 THIS SOFTWARE IS PROVIDED "AS IS", AND PRIME COMPUTER, 97 INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS 98 SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 99 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN 100 NO EVENT SHALL PRIME COMPUTER, INC. BE LIABLE FOR ANY 101 SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY 102 DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 103 PROFITS, WHETHER IN ACTION OF CONTRACT, NEGLIGENCE, OR 104 OTHER TORTIOUS ACTION, ARISING OUR OF OR IN CONNECTION 105 WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 106 */ 107 108 #ifndef _I386_PIC_H_ 109 #define _I386_PIC_H_ 110 111 #include <platforms.h> 112 113 #define NINTR 0x10 114 #define NPICS 0x02 115 116 /* 117 ** The following are definitions used to locate the PICs in the system 118 */ 119 120 #if defined(AT386) || defined(PS2) 121 #define ADDR_PIC_BASE 0x20 122 #define OFF_ICW 0x00 123 #define OFF_OCW 0x01 124 #define SIZE_PIC 0x80 125 #endif /* defined(AT386) || defined(PS2) */ 126 127 #ifdef iPSC386 128 #define ADDR_PIC_BASE 0xC0 129 #define OFF_ICW 0x00 130 #define OFF_OCW 0x02 131 #define SIZE_PIC 0x04 132 #endif /* iPSC386 */ 133 134 135 #define MASTER_ICW (ADDR_PIC_BASE + OFF_ICW) 136 #define MASTER_OCW (ADDR_PIC_BASE + OFF_OCW) 137 #define SLAVE_ICW (ADDR_PIC_BASE + SIZE_PIC + OFF_ICW) 138 #define SLAVE_OCW (ADDR_PIC_BASE + SIZE_PIC + OFF_OCW) 139 140 /* 141 ** The following banks of definitions ICW1, ICW2, ICW3, and ICW4 are used 142 ** to define the fields of the various ICWs for initialisation of the PICs 143 */ 144 145 /* 146 ** ICW1 147 */ 148 149 #define ICW_TEMPLATE 0x10 150 151 #define LEVL_TRIGGER 0x08 152 #define EDGE_TRIGGER 0x00 153 #define ADDR_INTRVL4 0x04 154 #define ADDR_INTRVL8 0x00 155 #define SINGLE__MODE 0x02 156 #define CASCADE_MODE 0x00 157 #define ICW4__NEEDED 0x01 158 #define NO_ICW4_NEED 0x00 159 160 /* 161 ** ICW2 162 */ 163 164 #if defined(AT386) || defined(PS2) 165 #define PICM_VECTBASE 0x40 166 #define PICS_VECTBASE PICM_VECTBASE + 0x08 167 #endif /* defined(AT386) || defined(PS2) */ 168 169 #ifdef iPSC386 170 #define PICM_VECTBASE 0x40 171 #define PICS_VECTBASE PICM_VECTBASE + 0x08 172 #endif /* iPSC386 */ 173 174 /* 175 ** ICW3 176 */ 177 178 #define SLAVE_ON_IR0 0x01 179 #define SLAVE_ON_IR1 0x02 180 #define SLAVE_ON_IR2 0x04 181 #define SLAVE_ON_IR3 0x08 182 #define SLAVE_ON_IR4 0x10 183 #define SLAVE_ON_IR5 0x20 184 #define SLAVE_ON_IR6 0x40 185 #define SLAVE_ON_IR7 0x80 186 187 #define I_AM_SLAVE_0 0x00 188 #define I_AM_SLAVE_1 0x01 189 #define I_AM_SLAVE_2 0x02 190 #define I_AM_SLAVE_3 0x03 191 #define I_AM_SLAVE_4 0x04 192 #define I_AM_SLAVE_5 0x05 193 #define I_AM_SLAVE_6 0x06 194 #define I_AM_SLAVE_7 0x07 195 196 /* 197 ** ICW4 198 */ 199 200 #define SNF_MODE_ENA 0x10 201 #define SNF_MODE_DIS 0x00 202 #define BUFFERD_MODE 0x08 203 #define NONBUFD_MODE 0x00 204 #if iPSC386 205 #define I_AM_A_SLAVE 0x00 206 #define I_AM_A_MASTR 0x04 207 #endif /* iPSC386 */ 208 #define AUTO_EOI_MOD 0x02 209 #define NRML_EOI_MOD 0x00 210 #define I8086_EMM_MOD 0x01 211 #define SET_MCS_MODE 0x00 212 213 /* 214 ** OCW1 215 */ 216 #define PICM_MASK 0xFF 217 #define PICS_MASK 0xFF 218 /* 219 ** OCW2 220 */ 221 222 #define NON_SPEC_EOI 0x20 223 #define SPECIFIC_EOI 0x60 224 #define ROT_NON_SPEC 0xa0 225 #define SET_ROT_AEOI 0x80 226 #define RSET_ROTAEOI 0x00 227 #define ROT_SPEC_EOI 0xe0 228 #define SET_PRIORITY 0xc0 229 #define NO_OPERATION 0x40 230 231 #define SEND_EOI_IR0 0x00 232 #define SEND_EOI_IR1 0x01 233 #define SEND_EOI_IR2 0x02 234 #define SEND_EOI_IR3 0x03 235 #define SEND_EOI_IR4 0x04 236 #define SEND_EOI_IR5 0x05 237 #define SEND_EOI_IR6 0x06 238 #define SEND_EOI_IR7 0x07 239 240 /* 241 ** OCW3 242 */ 243 244 #define OCW_TEMPLATE 0x08 245 #define SPECIAL_MASK 0x40 246 #define MASK_MDE_SET 0x20 247 #define MASK_MDE_RST 0x00 248 #define POLL_COMMAND 0x04 249 #define NO_POLL_CMND 0x00 250 #define READ_NEXT_RD 0x02 251 #define READ_IR_ONRD 0x00 252 #define READ_IS_ONRD 0x01 253 254 #endif /* _I386_PIC_H_ */
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