1 /* $NetBSD: sic6351.c,v 1.6 2009/03/14 21:04:08 dsl 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/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: sic6351.c,v 1.6 2009/03/14 21:04:08 dsl Exp $"); 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 35 #include <machine/cpu.h> 36 #include <machine/pte.h> 37 38 void sicinit(void*); 39 int act2icr(int); 40 void sic_enable_int(int, int, int, int, int); 41 42 static char *sicbase; 43 44 void 45 sicinit(void *base) 46 { 47 int i; 48 49 sicbase = base; 50 51 for(i = 0x100; i <= 0x1a4; i += 4) 52 *(volatile int *)(sicbase + i) = 0; 53 } 54 55 int 56 act2icr(int act) 57 { 58 if (act == 17) 59 return (0x90); /* ILACC */ 60 if (act == 19) 61 return (0x94); /* ZS */ 62 if (act == 25) 63 return (0xa4); /* RTC */ 64 if (act == 39) 65 return (0x6c); /* ABORT A */ 66 panic("sic: unknown act %d", act); 67 } 68 69 void 70 sic_enable_int(int nr, int type, int icod, int level, int 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