isa.c revision 1.130
1 /* $NetBSD: isa.c,v 1.130 2007/12/01 04:50:23 jmcneill Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum; by Jason R. Thorpe of Wasabi Systems, Inc. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: isa.c,v 1.130 2007/12/01 04:50:23 jmcneill Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/kernel.h> 45 #include <sys/malloc.h> 46 #include <sys/device.h> 47 48 #include <sys/intr.h> 49 50 #include <dev/isa/isareg.h> 51 #include <dev/isa/isavar.h> 52 #include <dev/isa/isadmareg.h> 53 54 #include "isadma.h" 55 56 #include "isapnp.h" 57 #if NISAPNP > 0 58 #include <dev/isapnp/isapnpreg.h> 59 #include <dev/isapnp/isapnpvar.h> 60 #endif 61 62 #include "locators.h" 63 64 int isamatch(struct device *, struct cfdata *, void *); 65 void isaattach(struct device *, struct device *, void *); 66 int isarescan(struct device *, const char *, const int *); 67 void isachilddetached(struct device *, struct device *); 68 int isaprint(void *, const char *); 69 70 CFATTACH_DECL2(isa, sizeof(struct isa_softc), 71 isamatch, isaattach, NULL, NULL, isarescan, isachilddetached); 72 73 void isa_attach_knowndevs(struct isa_softc *); 74 void isa_free_knowndevs(struct isa_softc *); 75 76 int isasubmatch(struct device *, struct cfdata *, const int *, void *); 77 int isasearch(struct device *, struct cfdata *, const int *, void *); 78 79 int 80 isamatch(struct device *parent, struct cfdata *cf, 81 void *aux) 82 { 83 /* XXX check other indicators */ 84 85 return (1); 86 } 87 88 void 89 isaattach(struct device *parent, struct device *self, void *aux) 90 { 91 struct isa_softc *sc = (struct isa_softc *)self; 92 struct isabus_attach_args *iba = aux; 93 static const int wildcard[ISACF_NLOCS] = { 94 ISACF_PORT_DEFAULT, ISACF_SIZE_DEFAULT, 95 ISACF_IOMEM_DEFAULT, ISACF_IOSIZ_DEFAULT, 96 ISACF_IRQ_DEFAULT, ISACF_DRQ_DEFAULT, ISACF_DRQ2_DEFAULT 97 }; 98 99 TAILQ_INIT(&sc->sc_knowndevs); 100 sc->sc_dynamicdevs = 0; 101 102 isa_attach_hook(parent, self, iba); 103 aprint_naive("\n"); 104 aprint_normal("\n"); 105 106 /* XXX Add code to fetch known-devices. */ 107 108 sc->sc_iot = iba->iba_iot; 109 sc->sc_memt = iba->iba_memt; 110 sc->sc_dmat = iba->iba_dmat; 111 sc->sc_ic = iba->iba_ic; 112 113 #if NISAPNP > 0 114 /* 115 * Reset isapnp cards that the bios configured for us 116 */ 117 isapnp_isa_attach_hook(sc); 118 #endif 119 120 #if NISADMA > 0 121 /* 122 * Initialize our DMA state. 123 */ 124 isa_dmainit(sc->sc_ic, sc->sc_iot, sc->sc_dmat, self); 125 #endif 126 127 /* Attach all direct-config children. */ 128 isa_attach_knowndevs(sc); 129 130 /* 131 * If we don't support dynamic hello/goodbye of devices, 132 * then free the knowndevs info now. 133 */ 134 if (sc->sc_dynamicdevs == 0) 135 isa_free_knowndevs(sc); 136 137 /* Attach all indrect-config children. */ 138 isarescan(self, "isa", wildcard); 139 } 140 141 int 142 isarescan(struct device *self, const char *ifattr, const int *locators) 143 { 144 int locs[ISACF_NLOCS]; 145 146 memcpy(locs, locators, sizeof(locs)); 147 148 /* 149 * XXX Bus independent code calling this function does not 150 * know the locator default values. It assumes "-1" for now. 151 * (should be made available by "config" one day) 152 * So fixup where the "-1" is not correct. 153 */ 154 if (locs[ISACF_SIZE] == -1) 155 locs[ISACF_SIZE] = ISACF_SIZE_DEFAULT; 156 if (locs[ISACF_IOSIZ] == -1) 157 locs[ISACF_IOSIZ] = ISACF_IOSIZ_DEFAULT; 158 159 config_search_loc(isasearch, self, ifattr, locs, NULL); 160 return (0); 161 } 162 163 void 164 isachilddetached(struct device *self, struct device *child) 165 { 166 /* nothing to do */ 167 } 168 169 void 170 isa_attach_knowndevs(struct isa_softc *sc) 171 { 172 struct isa_attach_args ia; 173 struct isa_knowndev *ik; 174 175 if (TAILQ_EMPTY(&sc->sc_knowndevs)) 176 return; 177 178 TAILQ_FOREACH(ik, &sc->sc_knowndevs, ik_list) { 179 if (ik->ik_claimed != NULL) 180 continue; 181 182 ia.ia_iot = sc->sc_iot; 183 ia.ia_memt = sc->sc_memt; 184 ia.ia_dmat = sc->sc_dmat; 185 ia.ia_ic = sc->sc_ic; 186 187 ia.ia_pnpname = ik->ik_pnpname; 188 ia.ia_pnpcompatnames = ik->ik_pnpcompatnames; 189 190 ia.ia_io = ik->ik_io; 191 ia.ia_nio = ik->ik_nio; 192 193 ia.ia_iomem = ik->ik_iomem; 194 ia.ia_niomem = ik->ik_niomem; 195 196 ia.ia_irq = ik->ik_irq; 197 ia.ia_nirq = ik->ik_nirq; 198 199 ia.ia_drq = ik->ik_drq; 200 ia.ia_ndrq = ik->ik_ndrq; 201 202 ia.ia_aux = NULL; 203 204 /* XXX should setup locator array */ 205 206 ik->ik_claimed = config_found_sm_loc(&sc->sc_dev, 207 "isa", 0, &ia, isaprint, isasubmatch); 208 } 209 } 210 211 void 212 isa_free_knowndevs(struct isa_softc *sc) 213 { 214 struct isa_knowndev *ik; 215 struct isa_pnpname *ipn; 216 217 #define FREEIT(x) if (x != NULL) free(x, M_DEVBUF) 218 219 while ((ik = TAILQ_FIRST(&sc->sc_knowndevs)) != NULL) { 220 TAILQ_REMOVE(&sc->sc_knowndevs, ik, ik_list); 221 FREEIT(ik->ik_pnpname); 222 while ((ipn = ik->ik_pnpcompatnames) != NULL) { 223 ik->ik_pnpcompatnames = ipn->ipn_next; 224 free(ipn->ipn_name, M_DEVBUF); 225 free(ipn, M_DEVBUF); 226 } 227 FREEIT(ik->ik_io); 228 FREEIT(ik->ik_iomem); 229 FREEIT(ik->ik_irq); 230 FREEIT(ik->ik_drq); 231 free(ik, M_DEVBUF); 232 } 233 234 #undef FREEIT 235 } 236 237 static int 238 checkattachargs(struct isa_attach_args *ia, const int *loc) 239 { 240 int i; 241 242 if (ia->ia_nio == 0) { 243 if (loc[ISACF_PORT] != ISACF_PORT_DEFAULT) 244 return (0); 245 } else { 246 if (loc[ISACF_PORT] != ISACF_PORT_DEFAULT && 247 loc[ISACF_PORT] != ia->ia_io[0].ir_addr) 248 return (0); 249 } 250 251 if (ia->ia_niomem == 0) { 252 if (loc[ISACF_IOMEM] != ISACF_IOMEM_DEFAULT) 253 return (0); 254 } else { 255 if (loc[ISACF_IOMEM] != ISACF_IOMEM_DEFAULT && 256 loc[ISACF_IOMEM] != ia->ia_iomem[0].ir_addr) 257 return (0); 258 } 259 260 if (ia->ia_nirq == 0) { 261 if (loc[ISACF_IRQ] != ISACF_IRQ_DEFAULT) 262 return (0); 263 } else { 264 if (loc[ISACF_IRQ] != ISACF_IRQ_DEFAULT && 265 loc[ISACF_IRQ] != ia->ia_irq[0].ir_irq) 266 return (0); 267 } 268 269 if (ia->ia_ndrq == 0) { 270 if (loc[ISACF_DRQ] != ISACF_DRQ_DEFAULT) 271 return (0); 272 if (loc[ISACF_DRQ2] != ISACF_DRQ2_DEFAULT) 273 return (0); 274 } else { 275 for (i = 0; i < 2; i++) { 276 if (i == ia->ia_ndrq) 277 break; 278 if (loc[ISACF_DRQ + i] != ISACF_DRQ_DEFAULT && 279 loc[ISACF_DRQ + i] != ia->ia_drq[i].ir_drq) 280 return (0); 281 } 282 for (; i < 2; i++) { 283 if (loc[ISACF_DRQ + i] != ISACF_DRQ_DEFAULT) 284 return (0); 285 } 286 } 287 288 return (1); 289 } 290 291 int 292 isasubmatch(struct device *parent, struct cfdata *cf, 293 const int *ldesc, void *aux) 294 { 295 struct isa_attach_args *ia = aux; 296 297 if (!checkattachargs(ia, cf->cf_loc)) 298 return (0); 299 300 return (config_match(parent, cf, aux)); 301 } 302 303 int 304 isaprint(void *aux, const char *isa) 305 { 306 struct isa_attach_args *ia = aux; 307 const char *sep; 308 int i; 309 310 /* 311 * This block of code only fires if we have a direct-config'd 312 * device for which there is no driver match. 313 */ 314 if (isa != NULL) { 315 struct isa_pnpname *ipn; 316 317 if (ia->ia_pnpname != NULL) 318 aprint_normal("%s", ia->ia_pnpname); 319 if ((ipn = ia->ia_pnpcompatnames) != NULL) { 320 aprint_normal(" ("); /* ) */ 321 for (sep = ""; ipn != NULL; 322 ipn = ipn->ipn_next, sep = " ") { 323 aprint_normal("%s%s", sep, ipn->ipn_name); 324 } 325 /* ( */ aprint_normal(")"); 326 } 327 aprint_normal(" at %s", isa); 328 } 329 330 if (ia->ia_nio) { 331 sep = ""; 332 aprint_normal(" port "); 333 for (i = 0; i < ia->ia_nio; i++) { 334 if (ia->ia_io[i].ir_size == 0) 335 continue; 336 aprint_normal("%s0x%x", sep, ia->ia_io[i].ir_addr); 337 if (ia->ia_io[i].ir_size > 1) 338 aprint_normal("-0x%x", ia->ia_io[i].ir_addr + 339 ia->ia_io[i].ir_size - 1); 340 sep = ","; 341 } 342 } 343 344 if (ia->ia_niomem) { 345 sep = ""; 346 aprint_normal(" iomem "); 347 for (i = 0; i < ia->ia_niomem; i++) { 348 if (ia->ia_iomem[i].ir_size == 0) 349 continue; 350 aprint_normal("%s0x%x", sep, ia->ia_iomem[i].ir_addr); 351 if (ia->ia_iomem[i].ir_size > 1) 352 aprint_normal("-0x%x", ia->ia_iomem[i].ir_addr + 353 ia->ia_iomem[i].ir_size - 1); 354 sep = ","; 355 } 356 } 357 358 if (ia->ia_nirq) { 359 sep = ""; 360 aprint_normal(" irq "); 361 for (i = 0; i < ia->ia_nirq; i++) { 362 if (ia->ia_irq[i].ir_irq == ISACF_IRQ_DEFAULT) 363 continue; 364 aprint_normal("%s%d", sep, ia->ia_irq[i].ir_irq); 365 sep = ","; 366 } 367 } 368 369 if (ia->ia_ndrq) { 370 sep = ""; 371 aprint_normal(" drq "); 372 for (i = 0; i < ia->ia_ndrq; i++) { 373 if (ia->ia_drq[i].ir_drq == ISACF_DRQ_DEFAULT) 374 continue; 375 aprint_normal("%s%d", sep, ia->ia_drq[i].ir_drq); 376 sep = ","; 377 } 378 } 379 380 return (UNCONF); 381 } 382 383 int 384 isasearch(struct device *parent, struct cfdata *cf, 385 const int *slocs, void *aux) 386 { 387 struct isa_io res_io[1]; 388 struct isa_iomem res_mem[1]; 389 struct isa_irq res_irq[1]; 390 struct isa_drq res_drq[2]; 391 struct isa_softc *sc = (struct isa_softc *)parent; 392 struct isa_attach_args ia; 393 int flocs[ISACF_NLOCS]; 394 int tryagain; 395 396 do { 397 ia.ia_pnpname = NULL; 398 ia.ia_pnpcompatnames = NULL; 399 400 res_io[0].ir_addr = cf->cf_loc[ISACF_PORT]; 401 res_io[0].ir_size = 0; 402 403 res_mem[0].ir_addr = cf->cf_loc[ISACF_IOMEM]; 404 res_mem[0].ir_size = cf->cf_loc[ISACF_IOSIZ]; 405 406 res_irq[0].ir_irq = 407 cf->cf_loc[ISACF_IRQ] == 2 ? 9 : cf->cf_loc[ISACF_IRQ]; 408 409 res_drq[0].ir_drq = cf->cf_loc[ISACF_DRQ]; 410 res_drq[1].ir_drq = cf->cf_loc[ISACF_DRQ2]; 411 412 ia.ia_iot = sc->sc_iot; 413 ia.ia_memt = sc->sc_memt; 414 ia.ia_dmat = sc->sc_dmat; 415 ia.ia_ic = sc->sc_ic; 416 417 ia.ia_io = res_io; 418 ia.ia_nio = 1; 419 420 ia.ia_iomem = res_mem; 421 ia.ia_niomem = 1; 422 423 ia.ia_irq = res_irq; 424 ia.ia_nirq = 1; 425 426 ia.ia_drq = res_drq; 427 ia.ia_ndrq = 2; 428 429 if (!checkattachargs(&ia, slocs)) 430 return (0); 431 432 tryagain = 0; 433 if (config_match(parent, cf, &ia) > 0) { 434 /* 435 * This is not necessary for detach, but might 436 * still be useful to collect device information. 437 */ 438 flocs[ISACF_PORT] = ia.ia_io[0].ir_addr; 439 flocs[ISACF_SIZE] = ia.ia_io[0].ir_size; 440 flocs[ISACF_IOMEM] = ia.ia_iomem[0].ir_addr; 441 flocs[ISACF_IOSIZ] = ia.ia_iomem[0].ir_size; 442 flocs[ISACF_IRQ] = ia.ia_irq[0].ir_irq; 443 flocs[ISACF_DRQ] = ia.ia_drq[0].ir_drq; 444 flocs[ISACF_DRQ2] = ia.ia_drq[1].ir_drq; 445 config_attach_loc(parent, cf, flocs, &ia, isaprint); 446 tryagain = (cf->cf_fstate == FSTATE_STAR); 447 } 448 } while (tryagain); 449 450 return (0); 451 } 452 453 const char * 454 isa_intr_typename(int type) 455 { 456 457 switch (type) { 458 case IST_NONE: 459 return ("none"); 460 case IST_PULSE: 461 return ("pulsed"); 462 case IST_EDGE: 463 return ("edge-triggered"); 464 case IST_LEVEL: 465 return ("level-triggered"); 466 default: 467 panic("isa_intr_typename: invalid type %d", type); 468 } 469 } 470
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