1 /* $NetBSD: sic6351.c,v 1.1 2001/05/14 18:23:04 drochner Exp $ */ 2 3 /* 4 * Copyright (c) 1997, 1999 5 * Matthias Drochner. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 */ 28 29 #include <sys/param.h> 30 #include <sys/systm.h> 31 32 #include <machine/cpu.h> 33 #include <machine/pte.h> 34 35 void sicinit __P((void*)); 36 int act2icr __P((int)); 37 void sic_enable_int __P((int, int, int, int, int)); 38 39 static char *sicbase; 40 41 void 42 sicinit(base) 43 void *base; 44 { 45 int i; 46 47 sicbase = base; 48 49 for(i = 0x100; i <= 0x1a4; i += 4) 50 *(volatile int *)(sicbase + i) = 0; 51 } 52 53 int 54 act2icr(act) 55 int act; 56 { 57 if (act == 17) 58 return (0x90); /* ILACC */ 59 if (act == 19) 60 return (0x94); /* ZS */ 61 if (act == 25) 62 return (0xa4); /* RTC */ 63 if (act == 39) 64 return (0x6c); /* ABORT A */ 65 panic("sic: unknown act %d", act); 66 } 67 68 void 69 sic_enable_int(nr, type, icod, level, vector) 70 int nr, type, icod, level, vector; 71 { 72 73 if (icod == 0) 74 *(volatile int *)(sicbase + 0x300 + nr * 4) = vector; 75 *(volatile int *)(sicbase + 0x200 + nr * 4) = icod; 76 *(volatile int *)(sicbase + 0x100 + act2icr(nr)) 77 = 0x80 | (type << 4) | level; 78 } 79