1 /* $NetBSD: isa.c,v 1.72 1995/04/17 12:09:09 cgd Exp $ */ 2 3 /*- 4 * Copyright (c) 1993, 1994 Charles Hannum. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Charles Hannum. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/kernel.h> 35 #include <sys/conf.h> 36 #include <sys/malloc.h> 37 #include <sys/device.h> 38 39 #include <dev/isa/isareg.h> 40 #include <dev/isa/isavar.h> 41 42 int isamatch __P((struct device *, void *, void *)); 43 void isaattach __P((struct device *, struct device *, void *)); 44 45 struct cfdriver isacd = { 46 NULL, "isa", isamatch, isaattach, DV_DULL, sizeof(struct device), 1 47 }; 48 49 int 50 isamatch(parent, match, aux) 51 struct device *parent; 52 void *match, *aux; 53 { 54 55 return (1); 56 } 57 58 int 59 isaprint(aux, isa) 60 void *aux; 61 char *isa; 62 { 63 struct isa_attach_args *ia = aux; 64 65 if (ia->ia_iosize) 66 printf(" port 0x%x", ia->ia_iobase); 67 if (ia->ia_iosize > 1) 68 printf("-0x%x", ia->ia_iobase + ia->ia_iosize - 1); 69 if (ia->ia_msize) 70 printf(" iomem 0x%x", ia->ia_maddr); 71 if (ia->ia_msize > 1) 72 printf("-0x%x", ia->ia_maddr + ia->ia_msize - 1); 73 if (ia->ia_irq != IRQUNK) 74 printf(" irq %d", ia->ia_irq); 75 if (ia->ia_drq != DRQUNK) 76 printf(" drq %d", ia->ia_drq); 77 return (UNCONF); 78 } 79 80 void 81 isascan(parent, match) 82 struct device *parent; 83 void *match; 84 { 85 struct device *dev = match; 86 struct cfdata *cf = dev->dv_cfdata; 87 struct isa_attach_args ia; 88 89 if (cf->cf_fstate == FSTATE_STAR) 90 panic("not bloody likely"); 91 92 ia.ia_iobase = cf->cf_loc[0]; 93 ia.ia_iosize = 0x666; 94 ia.ia_maddr = cf->cf_loc[2]; 95 ia.ia_msize = cf->cf_loc[3]; 96 ia.ia_irq = cf->cf_loc[4] == 2 ? 9 : cf->cf_loc[4]; 97 ia.ia_drq = cf->cf_loc[5]; 98 99 if ((*cf->cf_driver->cd_match)(parent, dev, &ia) > 0) 100 config_attach(parent, dev, &ia, isaprint); 101 else 102 free(dev, M_DEVBUF); 103 } 104 105 void 106 isaattach(parent, self, aux) 107 struct device *parent, *self; 108 void *aux; 109 { 110 struct isa_softc *sc = (struct isa_softc *)self; 111 112 printf("\n"); 113 114 TAILQ_INIT(&sc->sc_subdevs); 115 config_scan(isascan, self); 116 } 117 118 char * 119 isa_intr_typename(type) 120 isa_intrtype type; 121 { 122 123 switch (type) { 124 case ISA_IST_NONE : 125 return ("none"); 126 case ISA_IST_PULSE: 127 return ("pulsed"); 128 case ISA_IST_EDGE: 129 return ("edge-triggered"); 130 case ISA_IST_LEVEL: 131 return ("level-triggered"); 132 default: 133 panic("isa_intr_typename: invalid type %d", type); 134 } 135 } 136