isa.c revision 1.128.18.4
1 /* $NetBSD: isa.c,v 1.128.18.4 2007/11/06 14:27:18 joerg 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 1.128.18.4 2007/11/06 14:27:18 joerg 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 printf("\n"); 104 105 /* XXX Add code to fetch known-devices. */ 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 #if NISAPNP > 0 113 /* 114 * Reset isapnp cards that the bios configured for us 115 */ 116 isapnp_isa_attach_hook(sc); 117 #endif 118 119 #if NISADMA > 0 120 /* 121 * Initialize our DMA state. 122 */ 123 isa_dmainit(sc->sc_ic, sc->sc_iot, sc->sc_dmat, self); 124 #endif 125 126 /* Attach all direct-config children. */ 127 isa_attach_knowndevs(sc); 128 129 /* 130 * If we don't support dynamic hello/goodbye of devices, 131 * then free the knowndevs info now. 132 */ 133 if (sc->sc_dynamicdevs == 0) 134 isa_free_knowndevs(sc); 135 136 /* Attach all indrect-config children. */ 137 isarescan(self, "isa", wildcard); 138 139 if (!pnp_device_register(self, NULL, NULL)) 140 aprint_error_dev(self, "couldn't establish power handler\n"); 141 } 142 143 int 144 isarescan(struct device *self, const char *ifattr, const int *locators) 145 { 146 int locs[ISACF_NLOCS]; 147 148 memcpy(locs, locators, sizeof(locs)); 149 150 /* 151 * XXX Bus independent code calling this function does not 152 * know the locator default values. It assumes "-1" for now. 153 * (should be made available by "config" one day) 154 * So fixup where the "-1" is not correct. 155 */ 156 if (locs[ISACF_SIZE] == -1) 157 locs[ISACF_SIZE] = ISACF_SIZE_DEFAULT; 158 if (locs[ISACF_IOSIZ] == -1) 159 locs[ISACF_IOSIZ] = ISACF_IOSIZ_DEFAULT; 160 161 config_search_loc(isasearch, self, ifattr, locs, NULL); 162 return (0); 163 } 164 165 void 166 isachilddetached(struct device *self, struct device *child) 167 { 168 /* nothing to do */ 169 } 170 171 void 172 isa_attach_knowndevs(struct isa_softc *sc) 173 { 174 struct isa_attach_args ia; 175 struct isa_knowndev *ik; 176 177 if (TAILQ_EMPTY(&sc->sc_knowndevs)) 178 return; 179 180 TAILQ_FOREACH(ik, &sc->sc_knowndevs, ik_list) { 181 if (ik->ik_claimed != NULL) 182 continue; 183 184 ia.ia_iot = sc->sc_iot; 185 ia.ia_memt = sc->sc_memt; 186 ia.ia_dmat = sc->sc_dmat; 187 ia.ia_ic = sc->sc_ic; 188 189 ia.ia_pnpname = ik->ik_pnpname; 190 ia.ia_pnpcompatnames = ik->ik_pnpcompatnames; 191 192 ia.ia_io = ik->ik_io; 193 ia.ia_nio = ik->ik_nio; 194 195 ia.ia_iomem = ik->ik_iomem; 196 ia.ia_niomem = ik->ik_niomem; 197 198 ia.ia_irq = ik->ik_irq; 199 ia.ia_nirq = ik->ik_nirq; 200 201 ia.ia_drq = ik->ik_drq; 202 ia.ia_ndrq = ik->ik_ndrq; 203 204 ia.ia_aux = NULL; 205 206 /* XXX should setup locator array */ 207 208 ik->ik_claimed = config_found_sm_loc(&sc->sc_dev, 209 "isa", 0, &ia, isaprint, isasubmatch); 210 } 211 } 212 213 void 214 isa_free_knowndevs(struct isa_softc *sc) 215 { 216 struct isa_knowndev *ik; 217 struct isa_pnpname *ipn; 218 219 #define FREEIT(x) if (x != NULL) free(x, M_DEVBUF) 220 221 while ((ik = TAILQ_FIRST(&sc->sc_knowndevs)) != NULL) { 222 TAILQ_REMOVE(&sc->sc_knowndevs, ik, ik_list); 223 FREEIT(ik->ik_pnpname); 224 while ((ipn = ik->ik_pnpcompatnames) != NULL) { 225 ik->ik_pnpcompatnames = ipn->ipn_next; 226 free(ipn->ipn_name, M_DEVBUF); 227 free(ipn, M_DEVBUF); 228 } 229 FREEIT(ik->ik_io); 230 FREEIT(ik->ik_iomem); 231 FREEIT(ik->ik_irq); 232 FREEIT(ik->ik_drq); 233 free(ik, M_DEVBUF); 234 } 235 236 #undef FREEIT 237 } 238 239 static int 240 checkattachargs(struct isa_attach_args *ia, const int *loc) 241 { 242 int i; 243 244 if (ia->ia_nio == 0) { 245 if (loc[ISACF_PORT] != ISACF_PORT_DEFAULT) 246 return (0); 247 } else { 248 if (loc[ISACF_PORT] != ISACF_PORT_DEFAULT && 249 loc[ISACF_PORT] != ia->ia_io[0].ir_addr) 250 return (0); 251 } 252 253 if (ia->ia_niomem == 0) { 254 if (loc[ISACF_IOMEM] != ISACF_IOMEM_DEFAULT) 255 return (0); 256 } else { 257 if (loc[ISACF_IOMEM] != ISACF_IOMEM_DEFAULT && 258 loc[ISACF_IOMEM] != ia->ia_iomem[0].ir_addr) 259 return (0); 260 } 261 262 if (ia->ia_nirq == 0) { 263 if (loc[ISACF_IRQ] != ISACF_IRQ_DEFAULT) 264 return (0); 265 } else { 266 if (loc[ISACF_IRQ] != ISACF_IRQ_DEFAULT && 267 loc[ISACF_IRQ] != ia->ia_irq[0].ir_irq) 268 return (0); 269 } 270 271 if (ia->ia_ndrq == 0) { 272 if (loc[ISACF_DRQ] != ISACF_DRQ_DEFAULT) 273 return (0); 274 if (loc[ISACF_DRQ2] != ISACF_DRQ2_DEFAULT) 275 return (0); 276 } else { 277 for (i = 0; i < 2; i++) { 278 if (i == ia->ia_ndrq) 279 break; 280 if (loc[ISACF_DRQ + i] != ISACF_DRQ_DEFAULT && 281 loc[ISACF_DRQ + i] != ia->ia_drq[i].ir_drq) 282 return (0); 283 } 284 for (; i < 2; i++) { 285 if (loc[ISACF_DRQ + i] != ISACF_DRQ_DEFAULT) 286 return (0); 287 } 288 } 289 290 return (1); 291 } 292 293 int 294 isasubmatch(struct device *parent, struct cfdata *cf, 295 const int *ldesc, void *aux) 296 { 297 struct isa_attach_args *ia = aux; 298 299 if (!checkattachargs(ia, cf->cf_loc)) 300 return (0); 301 302 return (config_match(parent, cf, aux)); 303 } 304 305 int 306 isaprint(void *aux, const char *isa) 307 { 308 struct isa_attach_args *ia = aux; 309 const char *sep; 310 int i; 311 312 /* 313 * This block of code only fires if we have a direct-config'd 314 * device for which there is no driver match. 315 */ 316 if (isa != NULL) { 317 struct isa_pnpname *ipn; 318 319 if (ia->ia_pnpname != NULL) 320 aprint_normal("%s", ia->ia_pnpname); 321 if ((ipn = ia->ia_pnpcompatnames) != NULL) { 322 aprint_normal(" ("); /* ) */ 323 for (sep = ""; ipn != NULL; 324 ipn = ipn->ipn_next, sep = " ") { 325 aprint_normal("%s%s", sep, ipn->ipn_name); 326 } 327 /* ( */ aprint_normal(")"); 328 } 329 aprint_normal(" at %s", isa); 330 } 331 332 if (ia->ia_nio) { 333 sep = ""; 334 aprint_normal(" port "); 335 for (i = 0; i < ia->ia_nio; i++) { 336 if (ia->ia_io[i].ir_size == 0) 337 continue; 338 aprint_normal("%s0x%x", sep, ia->ia_io[i].ir_addr); 339 if (ia->ia_io[i].ir_size > 1) 340 aprint_normal("-0x%x", ia->ia_io[i].ir_addr + 341 ia->ia_io[i].ir_size - 1); 342 sep = ","; 343 } 344 } 345 346 if (ia->ia_niomem) { 347 sep = ""; 348 aprint_normal(" iomem "); 349 for (i = 0; i < ia->ia_niomem; i++) { 350 if (ia->ia_iomem[i].ir_size == 0) 351 continue; 352 aprint_normal("%s0x%x", sep, ia->ia_iomem[i].ir_addr); 353 if (ia->ia_iomem[i].ir_size > 1) 354 aprint_normal("-0x%x", ia->ia_iomem[i].ir_addr + 355 ia->ia_iomem[i].ir_size - 1); 356 sep = ","; 357 } 358 } 359 360 if (ia->ia_nirq) { 361 sep = ""; 362 aprint_normal(" irq "); 363 for (i = 0; i < ia->ia_nirq; i++) { 364 if (ia->ia_irq[i].ir_irq == ISACF_IRQ_DEFAULT) 365 continue; 366 aprint_normal("%s%d", sep, ia->ia_irq[i].ir_irq); 367 sep = ","; 368 } 369 } 370 371 if (ia->ia_ndrq) { 372 sep = ""; 373 aprint_normal(" drq "); 374 for (i = 0; i < ia->ia_ndrq; i++) { 375 if (ia->ia_drq[i].ir_drq == ISACF_DRQ_DEFAULT) 376 continue; 377 aprint_normal("%s%d", sep, ia->ia_drq[i].ir_drq); 378 sep = ","; 379 } 380 } 381 382 return (UNCONF); 383 } 384 385 int 386 isasearch(struct device *parent, struct cfdata *cf, 387 const int *slocs, void *aux) 388 { 389 struct isa_io res_io[1]; 390 struct isa_iomem res_mem[1]; 391 struct isa_irq res_irq[1]; 392 struct isa_drq res_drq[2]; 393 struct isa_softc *sc = (struct isa_softc *)parent; 394 struct isa_attach_args ia; 395 int flocs[ISACF_NLOCS]; 396 int tryagain; 397 398 do { 399 ia.ia_pnpname = NULL; 400 ia.ia_pnpcompatnames = NULL; 401 402 res_io[0].ir_addr = cf->cf_loc[ISACF_PORT]; 403 res_io[0].ir_size = 0; 404 405 res_mem[0].ir_addr = cf->cf_loc[ISACF_IOMEM]; 406 res_mem[0].ir_size = cf->cf_loc[ISACF_IOSIZ]; 407 408 res_irq[0].ir_irq = 409 cf->cf_loc[ISACF_IRQ] == 2 ? 9 : cf->cf_loc[ISACF_IRQ]; 410 411 res_drq[0].ir_drq = cf->cf_loc[ISACF_DRQ]; 412 res_drq[1].ir_drq = cf->cf_loc[ISACF_DRQ2]; 413 414 ia.ia_iot = sc->sc_iot; 415 ia.ia_memt = sc->sc_memt; 416 ia.ia_dmat = sc->sc_dmat; 417 ia.ia_ic = sc->sc_ic; 418 419 ia.ia_io = res_io; 420 ia.ia_nio = 1; 421 422 ia.ia_iomem = res_mem; 423 ia.ia_niomem = 1; 424 425 ia.ia_irq = res_irq; 426 ia.ia_nirq = 1; 427 428 ia.ia_drq = res_drq; 429 ia.ia_ndrq = 2; 430 431 if (!checkattachargs(&ia, slocs)) 432 return (0); 433 434 tryagain = 0; 435 if (config_match(parent, cf, &ia) > 0) { 436 /* 437 * This is not necessary for detach, but might 438 * still be useful to collect device information. 439 */ 440 flocs[ISACF_PORT] = ia.ia_io[0].ir_addr; 441 flocs[ISACF_SIZE] = ia.ia_io[0].ir_size; 442 flocs[ISACF_IOMEM] = ia.ia_iomem[0].ir_addr; 443 flocs[ISACF_IOSIZ] = ia.ia_iomem[0].ir_size; 444 flocs[ISACF_IRQ] = ia.ia_irq[0].ir_irq; 445 flocs[ISACF_DRQ] = ia.ia_drq[0].ir_drq; 446 flocs[ISACF_DRQ2] = ia.ia_drq[1].ir_drq; 447 config_attach_loc(parent, cf, flocs, &ia, isaprint); 448 tryagain = (cf->cf_fstate == FSTATE_STAR); 449 } 450 } while (tryagain); 451 452 return (0); 453 } 454 455 const char * 456 isa_intr_typename(int type) 457 { 458 459 switch (type) { 460 case IST_NONE: 461 return ("none"); 462 case IST_PULSE: 463 return ("pulsed"); 464 case IST_EDGE: 465 return ("edge-triggered"); 466 case IST_LEVEL: 467 return ("level-triggered"); 468 default: 469 panic("isa_intr_typename: invalid type %d", type); 470 } 471 } 472
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