1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */ 28 /* Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T */ 29 /* All Rights Reserved */ 30 31 #ifndef _SYS_PIC_H 32 #define _SYS_PIC_H 33 34 #include <sys/avintr.h> 35 36 #ifdef __cplusplus 37 extern "C" { 38 #endif 39 40 /* Definitions for 8259 Programmable Interrupt Controller */ 41 42 #define PIC_NEEDICW4 0x01 /* ICW4 needed */ 43 #define PIC_ICW1BASE 0x10 /* base for ICW1 */ 44 #define PIC_LTIM 0x08 /* level-triggered mode */ 45 #define PIC_86MODE 0x01 /* MCS 86 mode */ 46 #define PIC_AUTOEOI 0x02 /* do auto eoi's */ 47 #define PIC_SLAVEBUF 0x08 /* put slave in buffered mode */ 48 #define PIC_MASTERBUF 0x0C /* put master in buffered mode */ 49 #define PIC_SPFMODE 0x10 /* special fully nested mode */ 50 #define PIC_READISR 0x0B /* Read the ISR */ 51 #define PIC_READIRR 0x0A /* Read the IRR */ 52 #define PIC_NSEOI 0x20 /* Non-specific EOI command */ 53 #define PIC_SEOI 0x60 /* specific EOI command */ 54 #define PIC_SEOI_LVL7 (PIC_SEOI | 0x7) /* specific EOI for level 7 */ 55 56 #if defined(__i386) || defined(__amd64) 57 #define PIC_VECTBASE 0x20 /* Vectors for external interrupts */ 58 /* start at 32. */ 59 #endif /* __i386 || __amd64 */ 60 61 /* 62 * Interrupt configuration information specific to a particular computer. 63 * These constants are used to initialize tables in modules/pic/space.c. 64 * NOTE: The master pic must always be pic zero. 65 */ 66 67 #define NPIC 2 /* 2 PICs */ 68 /* Port addresses */ 69 #define MCMD_PORT 0x20 /* master command port */ 70 #define MIMR_PORT 0x21 /* master intr mask register port */ 71 #define SCMD_PORT 0xA0 /* slave command port */ 72 #define SIMR_PORT 0xA1 /* slave intr mask register port */ 73 #define MASTERLINE 0x02 /* slave on IR2 of master PIC */ 74 #define SLAVEBASE 8 /* slave IR0 interrupt number */ 75 #define PICBUFFERED 0 /* PICs not in buffered mode */ 76 77 struct standard_pic { 78 short c_npic; 79 uchar_t c_curmask[NPIC]; 80 uchar_t c_iplmask[MAXIPL*NPIC]; 81 }; 82 83 #define CLOCK_VECTOR 0 /* line at which clock interrupt comes */ 84 85 #ifdef __cplusplus 86 } 87 #endif 88 89 #endif /* _SYS_PIC_H */ 90