isa.c revision 1.131
1 /* $NetBSD: isa.c,v 1.131 2007/12/09 20:28:01 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 1.131 2007/12/09 20:28:01 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 if (!pmf_device_register(self, NULL, NULL)) 141 aprint_error_dev(self, "couldn't establish power handler\n"); 142 } 143 144 int 145 isarescan(struct device *self, const char *ifattr, const int *locators) 146 { 147 int locs[ISACF_NLOCS]; 148 149 memcpy(locs, locators, sizeof(locs)); 150 151 /* 152 * XXX Bus independent code calling this function does not 153 * know the locator default values. It assumes "-1" for now. 154 * (should be made available by "config" one day) 155 * So fixup where the "-1" is not correct. 156 */ 157 if (locs[ISACF_SIZE] == -1) 158 locs[ISACF_SIZE] = ISACF_SIZE_DEFAULT; 159 if (locs[ISACF_IOSIZ] == -1) 160 locs[ISACF_IOSIZ] = ISACF_IOSIZ_DEFAULT; 161 162 config_search_loc(isasearch, self, ifattr, locs, NULL); 163 return (0); 164 } 165 166 void 167 isachilddetached(struct device *self, struct device *child) 168 { 169 /* nothing to do */ 170 } 171 172 void 173 isa_attach_knowndevs(struct isa_softc *sc) 174 { 175 struct isa_attach_args ia; 176 struct isa_knowndev *ik; 177 178 if (TAILQ_EMPTY(&sc->sc_knowndevs)) 179 return; 180 181 TAILQ_FOREACH(ik, &sc->sc_knowndevs, ik_list) { 182 if (ik->ik_claimed != NULL) 183 continue; 184 185 ia.ia_iot = sc->sc_iot; 186 ia.ia_memt = sc->sc_memt; 187 ia.ia_dmat = sc->sc_dmat; 188 ia.ia_ic = sc->sc_ic; 189 190 ia.ia_pnpname = ik->ik_pnpname; 191 ia.ia_pnpcompatnames = ik->ik_pnpcompatnames; 192 193 ia.ia_io = ik->ik_io; 194 ia.ia_nio = ik->ik_nio; 195 196 ia.ia_iomem = ik->ik_iomem; 197 ia.ia_niomem = ik->ik_niomem; 198 199 ia.ia_irq = ik->ik_irq; 200 ia.ia_nirq = ik->ik_nirq; 201 202 ia.ia_drq = ik->ik_drq; 203 ia.ia_ndrq = ik->ik_ndrq; 204 205 ia.ia_aux = NULL; 206 207 /* XXX should setup locator array */ 208 209 ik->ik_claimed = config_found_sm_loc(&sc->sc_dev, 210 "isa", 0, &ia, isaprint, isasubmatch); 211 } 212 } 213 214 void 215 isa_free_knowndevs(struct isa_softc *sc) 216 { 217 struct isa_knowndev *ik; 218 struct isa_pnpname *ipn; 219 220 #define FREEIT(x) if (x != NULL) free(x, M_DEVBUF) 221 222 while ((ik = TAILQ_FIRST(&sc->sc_knowndevs)) != NULL) { 223 TAILQ_REMOVE(&sc->sc_knowndevs, ik, ik_list); 224 FREEIT(ik->ik_pnpname); 225 while ((ipn = ik->ik_pnpcompatnames) != NULL) { 226 ik->ik_pnpcompatnames = ipn->ipn_next; 227 free(ipn->ipn_name, M_DEVBUF); 228 free(ipn, M_DEVBUF); 229 } 230 FREEIT(ik->ik_io); 231 FREEIT(ik->ik_iomem); 232 FREEIT(ik->ik_irq); 233 FREEIT(ik->ik_drq); 234 free(ik, M_DEVBUF); 235 } 236 237 #undef FREEIT 238 } 239 240 static int 241 checkattachargs(struct isa_attach_args *ia, const int *loc) 242 { 243 int i; 244 245 if (ia->ia_nio == 0) { 246 if (loc[ISACF_PORT] != ISACF_PORT_DEFAULT) 247 return (0); 248 } else { 249 if (loc[ISACF_PORT] != ISACF_PORT_DEFAULT && 250 loc[ISACF_PORT] != ia->ia_io[0].ir_addr) 251 return (0); 252 } 253 254 if (ia->ia_niomem == 0) { 255 if (loc[ISACF_IOMEM] != ISACF_IOMEM_DEFAULT) 256 return (0); 257 } else { 258 if (loc[ISACF_IOMEM] != ISACF_IOMEM_DEFAULT && 259 loc[ISACF_IOMEM] != ia->ia_iomem[0].ir_addr) 260 return (0); 261 } 262 263 if (ia->ia_nirq == 0) { 264 if (loc[ISACF_IRQ] != ISACF_IRQ_DEFAULT) 265 return (0); 266 } else { 267 if (loc[ISACF_IRQ] != ISACF_IRQ_DEFAULT && 268 loc[ISACF_IRQ] != ia->ia_irq[0].ir_irq) 269 return (0); 270 } 271 272 if (ia->ia_ndrq == 0) { 273 if (loc[ISACF_DRQ] != ISACF_DRQ_DEFAULT) 274 return (0); 275 if (loc[ISACF_DRQ2] != ISACF_DRQ2_DEFAULT) 276 return (0); 277 } else { 278 for (i = 0; i < 2; i++) { 279 if (i == ia->ia_ndrq) 280 break; 281 if (loc[ISACF_DRQ + i] != ISACF_DRQ_DEFAULT && 282 loc[ISACF_DRQ + i] != ia->ia_drq[i].ir_drq) 283 return (0); 284 } 285 for (; i < 2; i++) { 286 if (loc[ISACF_DRQ + i] != ISACF_DRQ_DEFAULT) 287 return (0); 288 } 289 } 290 291 return (1); 292 } 293 294 int 295 isasubmatch(struct device *parent, struct cfdata *cf, 296 const int *ldesc, void *aux) 297 { 298 struct isa_attach_args *ia = aux; 299 300 if (!checkattachargs(ia, cf->cf_loc)) 301 return (0); 302 303 return (config_match(parent, cf, aux)); 304 } 305 306 int 307 isaprint(void *aux, const char *isa) 308 { 309 struct isa_attach_args *ia = aux; 310 const char *sep; 311 int i; 312 313 /* 314 * This block of code only fires if we have a direct-config'd 315 * device for which there is no driver match. 316 */ 317 if (isa != NULL) { 318 struct isa_pnpname *ipn; 319 320 if (ia->ia_pnpname != NULL) 321 aprint_normal("%s", ia->ia_pnpname); 322 if ((ipn = ia->ia_pnpcompatnames) != NULL) { 323 aprint_normal(" ("); /* ) */ 324 for (sep = ""; ipn != NULL; 325 ipn = ipn->ipn_next, sep = " ") { 326 aprint_normal("%s%s", sep, ipn->ipn_name); 327 } 328 /* ( */ aprint_normal(")"); 329 } 330 aprint_normal(" at %s", isa); 331 } 332 333 if (ia->ia_nio) { 334 sep = ""; 335 aprint_normal(" port "); 336 for (i = 0; i < ia->ia_nio; i++) { 337 if (ia->ia_io[i].ir_size == 0) 338 continue; 339 aprint_normal("%s0x%x", sep, ia->ia_io[i].ir_addr); 340 if (ia->ia_io[i].ir_size > 1) 341 aprint_normal("-0x%x", ia->ia_io[i].ir_addr + 342 ia->ia_io[i].ir_size - 1); 343 sep = ","; 344 } 345 } 346 347 if (ia->ia_niomem) { 348 sep = ""; 349 aprint_normal(" iomem "); 350 for (i = 0; i < ia->ia_niomem; i++) { 351 if (ia->ia_iomem[i].ir_size == 0) 352 continue; 353 aprint_normal("%s0x%x", sep, ia->ia_iomem[i].ir_addr); 354 if (ia->ia_iomem[i].ir_size > 1) 355 aprint_normal("-0x%x", ia->ia_iomem[i].ir_addr + 356 ia->ia_iomem[i].ir_size - 1); 357 sep = ","; 358 } 359 } 360 361 if (ia->ia_nirq) { 362 sep = ""; 363 aprint_normal(" irq "); 364 for (i = 0; i < ia->ia_nirq; i++) { 365 if (ia->ia_irq[i].ir_irq == ISACF_IRQ_DEFAULT) 366 continue; 367 aprint_normal("%s%d", sep, ia->ia_irq[i].ir_irq); 368 sep = ","; 369 } 370 } 371 372 if (ia->ia_ndrq) { 373 sep = ""; 374 aprint_normal(" drq "); 375 for (i = 0; i < ia->ia_ndrq; i++) { 376 if (ia->ia_drq[i].ir_drq == ISACF_DRQ_DEFAULT) 377 continue; 378 aprint_normal("%s%d", sep, ia->ia_drq[i].ir_drq); 379 sep = ","; 380 } 381 } 382 383 return (UNCONF); 384 } 385 386 int 387 isasearch(struct device *parent, struct cfdata *cf, 388 const int *slocs, void *aux) 389 { 390 struct isa_io res_io[1]; 391 struct isa_iomem res_mem[1]; 392 struct isa_irq res_irq[1]; 393 struct isa_drq res_drq[2]; 394 struct isa_softc *sc = (struct isa_softc *)parent; 395 struct isa_attach_args ia; 396 int flocs[ISACF_NLOCS]; 397 int tryagain; 398 399 do { 400 ia.ia_pnpname = NULL; 401 ia.ia_pnpcompatnames = NULL; 402 403 res_io[0].ir_addr = cf->cf_loc[ISACF_PORT]; 404 res_io[0].ir_size = 0; 405 406 res_mem[0].ir_addr = cf->cf_loc[ISACF_IOMEM]; 407 res_mem[0].ir_size = cf->cf_loc[ISACF_IOSIZ]; 408 409 res_irq[0].ir_irq = 410 cf->cf_loc[ISACF_IRQ] == 2 ? 9 : cf->cf_loc[ISACF_IRQ]; 411 412 res_drq[0].ir_drq = cf->cf_loc[ISACF_DRQ]; 413 res_drq[1].ir_drq = cf->cf_loc[ISACF_DRQ2]; 414 415 ia.ia_iot = sc->sc_iot; 416 ia.ia_memt = sc->sc_memt; 417 ia.ia_dmat = sc->sc_dmat; 418 ia.ia_ic = sc->sc_ic; 419 420 ia.ia_io = res_io; 421 ia.ia_nio = 1; 422 423 ia.ia_iomem = res_mem; 424 ia.ia_niomem = 1; 425 426 ia.ia_irq = res_irq; 427 ia.ia_nirq = 1; 428 429 ia.ia_drq = res_drq; 430 ia.ia_ndrq = 2; 431 432 if (!checkattachargs(&ia, slocs)) 433 return (0); 434 435 tryagain = 0; 436 if (config_match(parent, cf, &ia) > 0) { 437 /* 438 * This is not necessary for detach, but might 439 * still be useful to collect device information. 440 */ 441 flocs[ISACF_PORT] = ia.ia_io[0].ir_addr; 442 flocs[ISACF_SIZE] = ia.ia_io[0].ir_size; 443 flocs[ISACF_IOMEM] = ia.ia_iomem[0].ir_addr; 444 flocs[ISACF_IOSIZ] = ia.ia_iomem[0].ir_size; 445 flocs[ISACF_IRQ] = ia.ia_irq[0].ir_irq; 446 flocs[ISACF_DRQ] = ia.ia_drq[0].ir_drq; 447 flocs[ISACF_DRQ2] = ia.ia_drq[1].ir_drq; 448 config_attach_loc(parent, cf, flocs, &ia, isaprint); 449 tryagain = (cf->cf_fstate == FSTATE_STAR); 450 } 451 } while (tryagain); 452 453 return (0); 454 } 455 456 const char * 457 isa_intr_typename(int type) 458 { 459 460 switch (type) { 461 case IST_NONE: 462 return ("none"); 463 case IST_PULSE: 464 return ("pulsed"); 465 case IST_EDGE: 466 return ("edge-triggered"); 467 case IST_LEVEL: 468 return ("level-triggered"); 469 default: 470 panic("isa_intr_typename: invalid type %d", type); 471 } 472 } 473
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