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Annotation of XNU/osfmk/i386/pic.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /*
        !            23:  * @OSF_COPYRIGHT@
        !            24:  */
        !            25: 
        !            26: /* 
        !            27:  * Mach Operating System
        !            28:  * Copyright (c) 1991,1990,1989 Carnegie Mellon University
        !            29:  * All Rights Reserved.
        !            30:  * 
        !            31:  * Permission to use, copy, modify and distribute this software and its
        !            32:  * documentation is hereby granted, provided that both the copyright
        !            33:  * notice and this permission notice appear in all copies of the
        !            34:  * software, derivative works or modified versions, and any portions
        !            35:  * thereof, and that both notices appear in supporting documentation.
        !            36:  * 
        !            37:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !            38:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
        !            39:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            40:  * 
        !            41:  * Carnegie Mellon requests users of this software to return to
        !            42:  * 
        !            43:  *  Software Distribution Coordinator  or  [email protected]
        !            44:  *  School of Computer Science
        !            45:  *  Carnegie Mellon University
        !            46:  *  Pittsburgh PA 15213-3890
        !            47:  * 
        !            48:  * any improvements or extensions that they make and grant Carnegie Mellon
        !            49:  * the rights to redistribute these changes.
        !            50:  */
        !            51: /* 
        !            52:  */
        !            53: 
        !            54: /*
        !            55: Copyright (c) 1988,1989 Prime Computer, Inc.  Natick, MA 01760
        !            56: All Rights Reserved.
        !            57: 
        !            58: Permission to use, copy, modify, and distribute this
        !            59: software and its documentation for any purpose and
        !            60: without fee is hereby granted, provided that the above
        !            61: copyright notice appears in all copies and that both the
        !            62: copyright notice and this permission notice appear in
        !            63: supporting documentation, and that the name of Prime
        !            64: Computer, Inc. not be used in advertising or publicity
        !            65: pertaining to distribution of the software without
        !            66: specific, written prior permission.
        !            67: 
        !            68: THIS SOFTWARE IS PROVIDED "AS IS", AND PRIME COMPUTER,
        !            69: INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
        !            70: SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            71: MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  IN
        !            72: NO EVENT SHALL PRIME COMPUTER, INC.  BE LIABLE FOR ANY
        !            73: SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
        !            74: DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
        !            75: PROFITS, WHETHER IN ACTION OF CONTRACT, NEGLIGENCE, OR
        !            76: OTHER TORTIOUS ACTION, ARISING OUR OF OR IN CONNECTION
        !            77: WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            78: */
        !            79: 
        !            80: #ifndef        _I386_PIC_H_
        !            81: #define        _I386_PIC_H_
        !            82: 
        !            83: #include <platforms.h>
        !            84: 
        !            85: #define NINTR  0x10
        !            86: #define        NPICS   0x02
        !            87: 
        !            88: /*
        !            89: ** The following are definitions used to locate the PICs in the system
        !            90: */
        !            91: 
        !            92: #define ADDR_PIC_BASE          0x20
        !            93: #define OFF_ICW                        0x00
        !            94: #define OFF_OCW                        0x01
        !            95: #define SIZE_PIC               0x80
        !            96: 
        !            97: /*
        !            98: ** The following banks of definitions ICW1, ICW2, ICW3, and ICW4 are used
        !            99: ** to define the fields of the various ICWs for initialisation of the PICs 
        !           100: */
        !           101: 
        !           102: /*
        !           103: **     ICW1                            
        !           104: */
        !           105: 
        !           106: #define ICW_TEMPLATE           0x10
        !           107: 
        !           108: #define LEVL_TRIGGER           0x08
        !           109: #define EDGE_TRIGGER           0x00
        !           110: #define ADDR_INTRVL4           0x04
        !           111: #define ADDR_INTRVL8           0x00
        !           112: #define SINGLE__MODE           0x02
        !           113: #define CASCADE_MODE           0x00
        !           114: #define ICW4__NEEDED           0x01
        !           115: #define NO_ICW4_NEED           0x00
        !           116: 
        !           117: /*
        !           118: **     ICW2
        !           119: */
        !           120: 
        !           121: #define        PICM_VECTBASE           0x40 
        !           122: #define PICS_VECTBASE          PICM_VECTBASE + 0x08
        !           123: 
        !           124: /*
        !           125: **     ICW3                            
        !           126: */
        !           127: 
        !           128: #define SLAVE_ON_IR0           0x01
        !           129: #define SLAVE_ON_IR1           0x02
        !           130: #define SLAVE_ON_IR2           0x04
        !           131: #define SLAVE_ON_IR3           0x08
        !           132: #define SLAVE_ON_IR4           0x10
        !           133: #define SLAVE_ON_IR5           0x20
        !           134: #define SLAVE_ON_IR6           0x40
        !           135: #define SLAVE_ON_IR7           0x80
        !           136: 
        !           137: #define I_AM_SLAVE_0           0x00
        !           138: #define I_AM_SLAVE_1           0x01
        !           139: #define I_AM_SLAVE_2           0x02
        !           140: #define I_AM_SLAVE_3           0x03
        !           141: #define I_AM_SLAVE_4           0x04
        !           142: #define I_AM_SLAVE_5           0x05
        !           143: #define I_AM_SLAVE_6           0x06
        !           144: #define I_AM_SLAVE_7           0x07
        !           145: 
        !           146: /*
        !           147: **     ICW4                            
        !           148: */
        !           149: 
        !           150: #define SNF_MODE_ENA           0x10
        !           151: #define SNF_MODE_DIS           0x00
        !           152: #define BUFFERD_MODE           0x08
        !           153: #define NONBUFD_MODE           0x00
        !           154: #define AUTO_EOI_MOD           0x02
        !           155: #define NRML_EOI_MOD           0x00
        !           156: #define I8086_EMM_MOD          0x01
        !           157: #define SET_MCS_MODE           0x00
        !           158: 
        !           159: /*
        !           160: **     OCW1                            
        !           161: */
        !           162: #define PICM_MASK              0xFF
        !           163: #define        PICS_MASK               0xFF
        !           164: /*
        !           165: **     OCW2                            
        !           166: */
        !           167: 
        !           168: #define NON_SPEC_EOI           0x20
        !           169: #define SPECIFIC_EOI           0x30
        !           170: #define ROT_NON_SPEC           0x50
        !           171: #define SET_ROT_AEOI           0x40
        !           172: #define RSET_ROTAEOI           0x00
        !           173: #define ROT_SPEC_EOI           0x70
        !           174: #define SET_PRIORITY           0x60
        !           175: #define NO_OPERATION           0x20
        !           176: 
        !           177: #define SEND_EOI_IR0           0x00
        !           178: #define SEND_EOI_IR1           0x01
        !           179: #define SEND_EOI_IR2           0x02
        !           180: #define SEND_EOI_IR3           0x03
        !           181: #define SEND_EOI_IR4           0x04
        !           182: #define SEND_EOI_IR5           0x05
        !           183: #define SEND_EOI_IR6           0x06
        !           184: #define SEND_EOI_IR7           0x07
        !           185:  
        !           186: /*
        !           187: **     OCW3                            
        !           188: */
        !           189: 
        !           190: #define OCW_TEMPLATE           0x08
        !           191: #define SPECIAL_MASK           0x40
        !           192: #define MASK_MDE_SET           0x20
        !           193: #define MASK_MDE_RST           0x00
        !           194: #define POLL_COMMAND           0x04
        !           195: #define NO_POLL_CMND           0x00
        !           196: #define READ_NEXT_RD           0x02
        !           197: #define READ_IR_ONRD           0x00
        !           198: #define READ_IS_ONRD           0x01
        !           199: 
        !           200: #endif /* _I386_PIC_H_ */

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