isa.c revision 1.102
1 /* $NetBSD: isa.c,v 1.102 1998/06/11 08:29:33 leo 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 <machine/intr.h> 40 41 #include <dev/isa/isareg.h> 42 #include <dev/isa/isavar.h> 43 #include <dev/isa/isadmareg.h> 44 45 #include "isadma.h" 46 47 int isamatch __P((struct device *, struct cfdata *, void *)); 48 void isaattach __P((struct device *, struct device *, void *)); 49 int isaprint __P((void *, const char *)); 50 51 struct cfattach isa_ca = { 52 sizeof(struct isa_softc), isamatch, isaattach 53 }; 54 55 int isasearch __P((struct device *, struct cfdata *, void *)); 56 57 int 58 isamatch(parent, cf, aux) 59 struct device *parent; 60 struct cfdata *cf; 61 void *aux; 62 { 63 struct isabus_attach_args *iba = aux; 64 65 if (strcmp(iba->iba_busname, cf->cf_driver->cd_name)) 66 return (0); 67 68 /* XXX check other indicators */ 69 70 return (1); 71 } 72 73 void 74 isaattach(parent, self, aux) 75 struct device *parent, *self; 76 void *aux; 77 { 78 struct isa_softc *sc = (struct isa_softc *)self; 79 struct isabus_attach_args *iba = aux; 80 81 isa_attach_hook(parent, self, iba); 82 printf("\n"); 83 84 sc->sc_iot = iba->iba_iot; 85 sc->sc_memt = iba->iba_memt; 86 sc->sc_dmat = iba->iba_dmat; 87 sc->sc_ic = iba->iba_ic; 88 89 #if NISADMA > 0 90 /* 91 * Initialize our DMA state. 92 */ 93 isa_dmainit(sc->sc_ic, sc->sc_iot, sc->sc_dmat, self); 94 #endif 95 96 TAILQ_INIT(&sc->sc_subdevs); 97 98 config_search(isasearch, self, NULL); 99 } 100 101 int 102 isaprint(aux, isa) 103 void *aux; 104 const char *isa; 105 { 106 struct isa_attach_args *ia = aux; 107 108 if (ia->ia_iosize) 109 printf(" port 0x%x", ia->ia_iobase); 110 if (ia->ia_iosize > 1) 111 printf("-0x%x", ia->ia_iobase + ia->ia_iosize - 1); 112 if (ia->ia_msize) 113 printf(" iomem 0x%x", ia->ia_maddr); 114 if (ia->ia_msize > 1) 115 printf("-0x%x", ia->ia_maddr + ia->ia_msize - 1); 116 if (ia->ia_irq != IRQUNK) 117 printf(" irq %d", ia->ia_irq); 118 if (ia->ia_drq != DRQUNK) 119 printf(" drq %d", ia->ia_drq); 120 if (ia->ia_drq2 != DRQUNK) 121 printf(" drq2 %d", ia->ia_drq2); 122 return (UNCONF); 123 } 124 125 int 126 isasearch(parent, cf, aux) 127 struct device *parent; 128 struct cfdata *cf; 129 void *aux; 130 { 131 struct isa_softc *sc = (struct isa_softc *)parent; 132 struct isa_attach_args ia; 133 int tryagain; 134 135 do { 136 ia.ia_iot = sc->sc_iot; 137 ia.ia_memt = sc->sc_memt; 138 ia.ia_dmat = sc->sc_dmat; 139 ia.ia_ic = sc->sc_ic; 140 ia.ia_iobase = cf->cf_iobase; 141 ia.ia_iosize = 0x666; /* cf->cf_iosize; */ 142 ia.ia_maddr = cf->cf_maddr; 143 ia.ia_msize = cf->cf_msize; 144 ia.ia_irq = cf->cf_irq == 2 ? 9 : cf->cf_irq; 145 ia.ia_drq = cf->cf_drq; 146 ia.ia_drq2 = cf->cf_drq2; 147 148 tryagain = 0; 149 if ((*cf->cf_attach->ca_match)(parent, cf, &ia) > 0) { 150 config_attach(parent, cf, &ia, isaprint); 151 tryagain = (cf->cf_fstate == FSTATE_STAR); 152 } 153 } while (tryagain); 154 155 return (0); 156 } 157 158 char * 159 isa_intr_typename(type) 160 int type; 161 { 162 163 switch (type) { 164 case IST_NONE : 165 return ("none"); 166 case IST_PULSE: 167 return ("pulsed"); 168 case IST_EDGE: 169 return ("edge-triggered"); 170 case IST_LEVEL: 171 return ("level-triggered"); 172 default: 173 panic("isa_intr_typename: invalid type %d", type); 174 } 175 } 176
Indexes created Tue Sep 30 17:09:57 GMT 2025