isa.c revision 1.99
1 /* $NetBSD: isa.c,v 1.99 1998/04/15 01:44:23 thorpej 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 #ifdef __BROKEN_INDIRECT_CONFIG 46 int isamatch __P((struct device *, void *, void *)); 47 #else 48 int isamatch __P((struct device *, struct cfdata *, void *)); 49 #endif 50 void isaattach __P((struct device *, struct device *, void *)); 51 int isaprint __P((void *, const char *)); 52 53 struct cfattach isa_ca = { 54 sizeof(struct isa_softc), isamatch, isaattach 55 }; 56 57 #ifdef __BROKEN_INDIRECT_CONFIG 58 void isascan __P((struct device *, void *)); 59 #else 60 int isasearch __P((struct device *, struct cfdata *, void *)); 61 #endif 62 63 int 64 #ifdef __BROKEN_INDIRECT_CONFIG 65 isamatch(parent, match, aux) 66 #else 67 isamatch(parent, cf, aux) 68 #endif 69 struct device *parent; 70 #ifdef __BROKEN_INDIRECT_CONFIG 71 void *match; 72 #else 73 struct cfdata *cf; 74 #endif 75 void *aux; 76 { 77 #ifdef __BROKEN_INDIRECT_CONFIG 78 struct cfdata *cf = match; 79 #endif 80 struct isabus_attach_args *iba = aux; 81 82 if (strcmp(iba->iba_busname, cf->cf_driver->cd_name)) 83 return (0); 84 85 /* XXX check other indicators */ 86 87 return (1); 88 } 89 90 void 91 isaattach(parent, self, aux) 92 struct device *parent, *self; 93 void *aux; 94 { 95 struct isa_softc *sc = (struct isa_softc *)self; 96 struct isabus_attach_args *iba = aux; 97 98 #ifdef __BROKEN_INDIRECT_CONFIG 99 extern struct cfdriver isa_cd; 100 101 isa_cd.cd_indirect = 1; 102 #endif 103 104 isa_attach_hook(parent, self, iba); 105 printf("\n"); 106 107 sc->sc_iot = iba->iba_iot; 108 sc->sc_memt = iba->iba_memt; 109 sc->sc_dmat = iba->iba_dmat; 110 sc->sc_ic = iba->iba_ic; 111 112 /* 113 * Map the registers used by the ISA DMA controller. 114 */ 115 if (bus_space_map(sc->sc_iot, IO_DMA1, DMA1_IOSIZE, 0, &sc->sc_dma1h)) 116 panic("isaattach: can't map DMA controller #1"); 117 if (bus_space_map(sc->sc_iot, IO_DMA2, DMA2_IOSIZE, 0, &sc->sc_dma2h)) 118 panic("isaattach: can't map DMA controller #2"); 119 if (bus_space_map(sc->sc_iot, IO_DMAPG, 0xf, 0, &sc->sc_dmapgh)) 120 panic("isaattach: can't map DMA page registers"); 121 122 TAILQ_INIT(&sc->sc_subdevs); 123 #ifdef __BROKEN_INDIRECT_CONFIG 124 config_scan(isascan, self); 125 #else 126 config_search(isasearch, self, NULL); 127 #endif 128 } 129 130 int 131 isaprint(aux, isa) 132 void *aux; 133 const char *isa; 134 { 135 struct isa_attach_args *ia = aux; 136 137 if (ia->ia_iosize) 138 printf(" port 0x%x", ia->ia_iobase); 139 if (ia->ia_iosize > 1) 140 printf("-0x%x", ia->ia_iobase + ia->ia_iosize - 1); 141 if (ia->ia_msize) 142 printf(" iomem 0x%x", ia->ia_maddr); 143 if (ia->ia_msize > 1) 144 printf("-0x%x", ia->ia_maddr + ia->ia_msize - 1); 145 if (ia->ia_irq != IRQUNK) 146 printf(" irq %d", ia->ia_irq); 147 if (ia->ia_drq != DRQUNK) 148 printf(" drq %d", ia->ia_drq); 149 if (ia->ia_drq2 != DRQUNK) 150 printf(" drq2 %d", ia->ia_drq2); 151 return (UNCONF); 152 } 153 154 #ifdef __BROKEN_INDIRECT_CONFIG 155 void 156 isascan(parent, match) 157 struct device *parent; 158 void *match; 159 { 160 struct isa_softc *sc = (struct isa_softc *)parent; 161 struct device *dev = match; 162 struct cfdata *cf = dev->dv_cfdata; 163 struct isa_attach_args ia; 164 165 #if defined(__i386__) 166 if (cf->cf_fstate == FSTATE_STAR) 167 panic("clone devices not supported on ISA bus"); 168 #endif 169 170 ia.ia_iot = sc->sc_iot; 171 ia.ia_memt = sc->sc_memt; 172 ia.ia_dmat = sc->sc_dmat; 173 ia.ia_ic = sc->sc_ic; 174 ia.ia_iobase = cf->cf_iobase; 175 ia.ia_iosize = 0x666;/* cf->cf_iosize; */ 176 ia.ia_maddr = cf->cf_maddr; 177 ia.ia_msize = cf->cf_msize; 178 ia.ia_irq = cf->cf_irq == 2 ? 9 : cf->cf_irq; 179 ia.ia_drq = cf->cf_drq; 180 ia.ia_drq2 = cf->cf_drq2; 181 182 if ((*cf->cf_attach->ca_match)(parent, match, &ia) > 0) 183 config_attach(parent, match, &ia, isaprint); 184 else 185 free(dev, M_DEVBUF); 186 } 187 #else /* !__BROKEN_INDIRECT_CONFIG */ 188 int 189 isasearch(parent, cf, aux) 190 struct device *parent; 191 struct cfdata *cf; 192 void *aux; 193 { 194 struct isa_softc *sc = (struct isa_softc *)parent; 195 struct isa_attach_args ia; 196 int tryagain; 197 198 do { 199 ia.ia_iot = sc->sc_iot; 200 ia.ia_memt = sc->sc_memt; 201 ia.ia_dmat = sc->sc_dmat; 202 ia.ia_ic = sc->sc_ic; 203 ia.ia_iobase = cf->cf_iobase; 204 ia.ia_iosize = 0x666; /* cf->cf_iosize; */ 205 ia.ia_maddr = cf->cf_maddr; 206 ia.ia_msize = cf->cf_msize; 207 ia.ia_irq = cf->cf_irq == 2 ? 9 : cf->cf_irq; 208 ia.ia_drq = cf->cf_drq; 209 ia.ia_drq2 = cf->cf_drq2; 210 211 tryagain = 0; 212 if ((*cf->cf_attach->ca_match)(parent, cf, &ia) > 0) { 213 config_attach(parent, cf, &ia, isaprint); 214 tryagain = (cf->cf_fstate == FSTATE_STAR); 215 } 216 } while (tryagain); 217 218 return (0); 219 } 220 #endif /* __BROKEN_INDIRECT_CONFIG */ 221 222 char * 223 isa_intr_typename(type) 224 int type; 225 { 226 227 switch (type) { 228 case IST_NONE : 229 return ("none"); 230 case IST_PULSE: 231 return ("pulsed"); 232 case IST_EDGE: 233 return ("edge-triggered"); 234 case IST_LEVEL: 235 return ("level-triggered"); 236 default: 237 panic("isa_intr_typename: invalid type %d", type); 238 } 239 } 240
Indexes created Thu Oct 02 01:09:59 GMT 2025