isa.c revision 1.100
1 /* $NetBSD: isa.c,v 1.100 1998/05/05 21:41:18 drochner 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 int isamatch __P((struct device *, struct cfdata *, void *)); 46 void isaattach __P((struct device *, struct device *, void *)); 47 int isaprint __P((void *, const char *)); 48 49 struct cfattach isa_ca = { 50 sizeof(struct isa_softc), isamatch, isaattach 51 }; 52 53 int isasearch __P((struct device *, struct cfdata *, void *)); 54 55 int 56 isamatch(parent, cf, aux) 57 struct device *parent; 58 struct cfdata *cf; 59 void *aux; 60 { 61 struct isabus_attach_args *iba = aux; 62 63 if (strcmp(iba->iba_busname, cf->cf_driver->cd_name)) 64 return (0); 65 66 /* XXX check other indicators */ 67 68 return (1); 69 } 70 71 void 72 isaattach(parent, self, aux) 73 struct device *parent, *self; 74 void *aux; 75 { 76 struct isa_softc *sc = (struct isa_softc *)self; 77 struct isabus_attach_args *iba = aux; 78 79 isa_attach_hook(parent, self, iba); 80 printf("\n"); 81 82 sc->sc_iot = iba->iba_iot; 83 sc->sc_memt = iba->iba_memt; 84 sc->sc_dmat = iba->iba_dmat; 85 sc->sc_ic = iba->iba_ic; 86 87 /* 88 * Map the registers used by the ISA DMA controller. 89 */ 90 if (bus_space_map(sc->sc_iot, IO_DMA1, DMA1_IOSIZE, 0, &sc->sc_dma1h)) 91 panic("isaattach: can't map DMA controller #1"); 92 if (bus_space_map(sc->sc_iot, IO_DMA2, DMA2_IOSIZE, 0, &sc->sc_dma2h)) 93 panic("isaattach: can't map DMA controller #2"); 94 if (bus_space_map(sc->sc_iot, IO_DMAPG, 0xf, 0, &sc->sc_dmapgh)) 95 panic("isaattach: can't map DMA page registers"); 96 97 TAILQ_INIT(&sc->sc_subdevs); 98 99 config_search(isasearch, self, NULL); 100 } 101 102 int 103 isaprint(aux, isa) 104 void *aux; 105 const char *isa; 106 { 107 struct isa_attach_args *ia = aux; 108 109 if (ia->ia_iosize) 110 printf(" port 0x%x", ia->ia_iobase); 111 if (ia->ia_iosize > 1) 112 printf("-0x%x", ia->ia_iobase + ia->ia_iosize - 1); 113 if (ia->ia_msize) 114 printf(" iomem 0x%x", ia->ia_maddr); 115 if (ia->ia_msize > 1) 116 printf("-0x%x", ia->ia_maddr + ia->ia_msize - 1); 117 if (ia->ia_irq != IRQUNK) 118 printf(" irq %d", ia->ia_irq); 119 if (ia->ia_drq != DRQUNK) 120 printf(" drq %d", ia->ia_drq); 121 if (ia->ia_drq2 != DRQUNK) 122 printf(" drq2 %d", ia->ia_drq2); 123 return (UNCONF); 124 } 125 126 int 127 isasearch(parent, cf, aux) 128 struct device *parent; 129 struct cfdata *cf; 130 void *aux; 131 { 132 struct isa_softc *sc = (struct isa_softc *)parent; 133 struct isa_attach_args ia; 134 int tryagain; 135 136 do { 137 ia.ia_iot = sc->sc_iot; 138 ia.ia_memt = sc->sc_memt; 139 ia.ia_dmat = sc->sc_dmat; 140 ia.ia_ic = sc->sc_ic; 141 ia.ia_iobase = cf->cf_iobase; 142 ia.ia_iosize = 0x666; /* cf->cf_iosize; */ 143 ia.ia_maddr = cf->cf_maddr; 144 ia.ia_msize = cf->cf_msize; 145 ia.ia_irq = cf->cf_irq == 2 ? 9 : cf->cf_irq; 146 ia.ia_drq = cf->cf_drq; 147 ia.ia_drq2 = cf->cf_drq2; 148 149 tryagain = 0; 150 if ((*cf->cf_attach->ca_match)(parent, cf, &ia) > 0) { 151 config_attach(parent, cf, &ia, isaprint); 152 tryagain = (cf->cf_fstate == FSTATE_STAR); 153 } 154 } while (tryagain); 155 156 return (0); 157 } 158 159 char * 160 isa_intr_typename(type) 161 int type; 162 { 163 164 switch (type) { 165 case IST_NONE : 166 return ("none"); 167 case IST_PULSE: 168 return ("pulsed"); 169 case IST_EDGE: 170 return ("edge-triggered"); 171 case IST_LEVEL: 172 return ("level-triggered"); 173 default: 174 panic("isa_intr_typename: invalid type %d", type); 175 } 176 } 177
Indexes created Tue Sep 30 06:09:59 GMT 2025