isa.c revision 1.128.18.3
1 /* $NetBSD: isa.c,v 1.128.18.3 2007/10/26 15:45:21 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 1.128.18.3 2007/10/26 15:45:21 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 (void)pnp_register(self, pnp_generic_power); 140 } 141 142 int 143 isarescan(struct device *self, const char *ifattr, const int *locators) 144 { 145 int locs[ISACF_NLOCS]; 146 147 memcpy(locs, locators, sizeof(locs)); 148 149 /* 150 * XXX Bus independent code calling this function does not 151 * know the locator default values. It assumes "-1" for now. 152 * (should be made available by "config" one day) 153 * So fixup where the "-1" is not correct. 154 */ 155 if (locs[ISACF_SIZE] == -1) 156 locs[ISACF_SIZE] = ISACF_SIZE_DEFAULT; 157 if (locs[ISACF_IOSIZ] == -1) 158 locs[ISACF_IOSIZ] = ISACF_IOSIZ_DEFAULT; 159 160 config_search_loc(isasearch, self, ifattr, locs, NULL); 161 return (0); 162 } 163 164 void 165 isachilddetached(struct device *self, struct device *child) 166 { 167 /* nothing to do */ 168 } 169 170 void 171 isa_attach_knowndevs(struct isa_softc *sc) 172 { 173 struct isa_attach_args ia; 174 struct isa_knowndev *ik; 175 176 if (TAILQ_EMPTY(&sc->sc_knowndevs)) 177 return; 178 179 TAILQ_FOREACH(ik, &sc->sc_knowndevs, ik_list) { 180 if (ik->ik_claimed != NULL) 181 continue; 182 183 ia.ia_iot = sc->sc_iot; 184 ia.ia_memt = sc->sc_memt; 185 ia.ia_dmat = sc->sc_dmat; 186 ia.ia_ic = sc->sc_ic; 187 188 ia.ia_pnpname = ik->ik_pnpname; 189 ia.ia_pnpcompatnames = ik->ik_pnpcompatnames; 190 191 ia.ia_io = ik->ik_io; 192 ia.ia_nio = ik->ik_nio; 193 194 ia.ia_iomem = ik->ik_iomem; 195 ia.ia_niomem = ik->ik_niomem; 196 197 ia.ia_irq = ik->ik_irq; 198 ia.ia_nirq = ik->ik_nirq; 199 200 ia.ia_drq = ik->ik_drq; 201 ia.ia_ndrq = ik->ik_ndrq; 202 203 ia.ia_aux = NULL; 204 205 /* XXX should setup locator array */ 206 207 ik->ik_claimed = config_found_sm_loc(&sc->sc_dev, 208 "isa", 0, &ia, isaprint, isasubmatch); 209 } 210 } 211 212 void 213 isa_free_knowndevs(struct isa_softc *sc) 214 { 215 struct isa_knowndev *ik; 216 struct isa_pnpname *ipn; 217 218 #define FREEIT(x) if (x != NULL) free(x, M_DEVBUF) 219 220 while ((ik = TAILQ_FIRST(&sc->sc_knowndevs)) != NULL) { 221 TAILQ_REMOVE(&sc->sc_knowndevs, ik, ik_list); 222 FREEIT(ik->ik_pnpname); 223 while ((ipn = ik->ik_pnpcompatnames) != NULL) { 224 ik->ik_pnpcompatnames = ipn->ipn_next; 225 free(ipn->ipn_name, M_DEVBUF); 226 free(ipn, M_DEVBUF); 227 } 228 FREEIT(ik->ik_io); 229 FREEIT(ik->ik_iomem); 230 FREEIT(ik->ik_irq); 231 FREEIT(ik->ik_drq); 232 free(ik, M_DEVBUF); 233 } 234 235 #undef FREEIT 236 } 237 238 static int 239 checkattachargs(struct isa_attach_args *ia, const int *loc) 240 { 241 int i; 242 243 if (ia->ia_nio == 0) { 244 if (loc[ISACF_PORT] != ISACF_PORT_DEFAULT) 245 return (0); 246 } else { 247 if (loc[ISACF_PORT] != ISACF_PORT_DEFAULT && 248 loc[ISACF_PORT] != ia->ia_io[0].ir_addr) 249 return (0); 250 } 251 252 if (ia->ia_niomem == 0) { 253 if (loc[ISACF_IOMEM] != ISACF_IOMEM_DEFAULT) 254 return (0); 255 } else { 256 if (loc[ISACF_IOMEM] != ISACF_IOMEM_DEFAULT && 257 loc[ISACF_IOMEM] != ia->ia_iomem[0].ir_addr) 258 return (0); 259 } 260 261 if (ia->ia_nirq == 0) { 262 if (loc[ISACF_IRQ] != ISACF_IRQ_DEFAULT) 263 return (0); 264 } else { 265 if (loc[ISACF_IRQ] != ISACF_IRQ_DEFAULT && 266 loc[ISACF_IRQ] != ia->ia_irq[0].ir_irq) 267 return (0); 268 } 269 270 if (ia->ia_ndrq == 0) { 271 if (loc[ISACF_DRQ] != ISACF_DRQ_DEFAULT) 272 return (0); 273 if (loc[ISACF_DRQ2] != ISACF_DRQ2_DEFAULT) 274 return (0); 275 } else { 276 for (i = 0; i < 2; i++) { 277 if (i == ia->ia_ndrq) 278 break; 279 if (loc[ISACF_DRQ + i] != ISACF_DRQ_DEFAULT && 280 loc[ISACF_DRQ + i] != ia->ia_drq[i].ir_drq) 281 return (0); 282 } 283 for (; i < 2; i++) { 284 if (loc[ISACF_DRQ + i] != ISACF_DRQ_DEFAULT) 285 return (0); 286 } 287 } 288 289 return (1); 290 } 291 292 int 293 isasubmatch(struct device *parent, struct cfdata *cf, 294 const int *ldesc, void *aux) 295 { 296 struct isa_attach_args *ia = aux; 297 298 if (!checkattachargs(ia, cf->cf_loc)) 299 return (0); 300 301 return (config_match(parent, cf, aux)); 302 } 303 304 int 305 isaprint(void *aux, const char *isa) 306 { 307 struct isa_attach_args *ia = aux; 308 const char *sep; 309 int i; 310 311 /* 312 * This block of code only fires if we have a direct-config'd 313 * device for which there is no driver match. 314 */ 315 if (isa != NULL) { 316 struct isa_pnpname *ipn; 317 318 if (ia->ia_pnpname != NULL) 319 aprint_normal("%s", ia->ia_pnpname); 320 if ((ipn = ia->ia_pnpcompatnames) != NULL) { 321 aprint_normal(" ("); /* ) */ 322 for (sep = ""; ipn != NULL; 323 ipn = ipn->ipn_next, sep = " ") { 324 aprint_normal("%s%s", sep, ipn->ipn_name); 325 } 326 /* ( */ aprint_normal(")"); 327 } 328 aprint_normal(" at %s", isa); 329 } 330 331 if (ia->ia_nio) { 332 sep = ""; 333 aprint_normal(" port "); 334 for (i = 0; i < ia->ia_nio; i++) { 335 if (ia->ia_io[i].ir_size == 0) 336 continue; 337 aprint_normal("%s0x%x", sep, ia->ia_io[i].ir_addr); 338 if (ia->ia_io[i].ir_size > 1) 339 aprint_normal("-0x%x", ia->ia_io[i].ir_addr + 340 ia->ia_io[i].ir_size - 1); 341 sep = ","; 342 } 343 } 344 345 if (ia->ia_niomem) { 346 sep = ""; 347 aprint_normal(" iomem "); 348 for (i = 0; i < ia->ia_niomem; i++) { 349 if (ia->ia_iomem[i].ir_size == 0) 350 continue; 351 aprint_normal("%s0x%x", sep, ia->ia_iomem[i].ir_addr); 352 if (ia->ia_iomem[i].ir_size > 1) 353 aprint_normal("-0x%x", ia->ia_iomem[i].ir_addr + 354 ia->ia_iomem[i].ir_size - 1); 355 sep = ","; 356 } 357 } 358 359 if (ia->ia_nirq) { 360 sep = ""; 361 aprint_normal(" irq "); 362 for (i = 0; i < ia->ia_nirq; i++) { 363 if (ia->ia_irq[i].ir_irq == ISACF_IRQ_DEFAULT) 364 continue; 365 aprint_normal("%s%d", sep, ia->ia_irq[i].ir_irq); 366 sep = ","; 367 } 368 } 369 370 if (ia->ia_ndrq) { 371 sep = ""; 372 aprint_normal(" drq "); 373 for (i = 0; i < ia->ia_ndrq; i++) { 374 if (ia->ia_drq[i].ir_drq == ISACF_DRQ_DEFAULT) 375 continue; 376 aprint_normal("%s%d", sep, ia->ia_drq[i].ir_drq); 377 sep = ","; 378 } 379 } 380 381 return (UNCONF); 382 } 383 384 int 385 isasearch(struct device *parent, struct cfdata *cf, 386 const int *slocs, void *aux) 387 { 388 struct isa_io res_io[1]; 389 struct isa_iomem res_mem[1]; 390 struct isa_irq res_irq[1]; 391 struct isa_drq res_drq[2]; 392 struct isa_softc *sc = (struct isa_softc *)parent; 393 struct isa_attach_args ia; 394 int flocs[ISACF_NLOCS]; 395 int tryagain; 396 397 do { 398 ia.ia_pnpname = NULL; 399 ia.ia_pnpcompatnames = NULL; 400 401 res_io[0].ir_addr = cf->cf_loc[ISACF_PORT]; 402 res_io[0].ir_size = 0; 403 404 res_mem[0].ir_addr = cf->cf_loc[ISACF_IOMEM]; 405 res_mem[0].ir_size = cf->cf_loc[ISACF_IOSIZ]; 406 407 res_irq[0].ir_irq = 408 cf->cf_loc[ISACF_IRQ] == 2 ? 9 : cf->cf_loc[ISACF_IRQ]; 409 410 res_drq[0].ir_drq = cf->cf_loc[ISACF_DRQ]; 411 res_drq[1].ir_drq = cf->cf_loc[ISACF_DRQ2]; 412 413 ia.ia_iot = sc->sc_iot; 414 ia.ia_memt = sc->sc_memt; 415 ia.ia_dmat = sc->sc_dmat; 416 ia.ia_ic = sc->sc_ic; 417 418 ia.ia_io = res_io; 419 ia.ia_nio = 1; 420 421 ia.ia_iomem = res_mem; 422 ia.ia_niomem = 1; 423 424 ia.ia_irq = res_irq; 425 ia.ia_nirq = 1; 426 427 ia.ia_drq = res_drq; 428 ia.ia_ndrq = 2; 429 430 if (!checkattachargs(&ia, slocs)) 431 return (0); 432 433 tryagain = 0; 434 if (config_match(parent, cf, &ia) > 0) { 435 /* 436 * This is not necessary for detach, but might 437 * still be useful to collect device information. 438 */ 439 flocs[ISACF_PORT] = ia.ia_io[0].ir_addr; 440 flocs[ISACF_SIZE] = ia.ia_io[0].ir_size; 441 flocs[ISACF_IOMEM] = ia.ia_iomem[0].ir_addr; 442 flocs[ISACF_IOSIZ] = ia.ia_iomem[0].ir_size; 443 flocs[ISACF_IRQ] = ia.ia_irq[0].ir_irq; 444 flocs[ISACF_DRQ] = ia.ia_drq[0].ir_drq; 445 flocs[ISACF_DRQ2] = ia.ia_drq[1].ir_drq; 446 config_attach_loc(parent, cf, flocs, &ia, isaprint); 447 tryagain = (cf->cf_fstate == FSTATE_STAR); 448 } 449 } while (tryagain); 450 451 return (0); 452 } 453 454 const char * 455 isa_intr_typename(int type) 456 { 457 458 switch (type) { 459 case IST_NONE: 460 return ("none"); 461 case IST_PULSE: 462 return ("pulsed"); 463 case IST_EDGE: 464 return ("edge-triggered"); 465 case IST_LEVEL: 466 return ("level-triggered"); 467 default: 468 panic("isa_intr_typename: invalid type %d", type); 469 } 470 } 471 472 struct isa_generic_power { 473 pnp_state_t p_cur_state; 474 void (*p_resume)(device_t); 475 void (*p_suspend)(device_t); 476 }; 477 478 static pnp_status_t 479 isa_generic_power(device_t dv, pnp_request_t req, void *opaque) 480 { 481 struct isa_generic_power *arg = device_power_private(dv); 482 pnp_state_t *state; 483 pnp_capabilities_t *caps; 484 485 switch (req) { 486 case PNP_REQUEST_GET_CAPABILITIES: 487 caps = opaque; 488 489 caps->state = PNP_STATE_D0 | PNP_STATE_D3; 490 return PNP_STATUS_SUCCESS; 491 492 case PNP_REQUEST_SET_STATE: 493 state = opaque; 494 switch (*state) { 495 case PNP_STATE_D0: 496 if (arg->p_resume) 497 (*arg->p_resume)(dv); 498 break; 499 case PNP_STATE_D3: 500 if (arg->p_suspend) 501 (*arg->p_suspend)(dv); 502 break; 503 default: 504 return PNP_STATUS_UNSUPPORTED; 505 } 506 arg->p_cur_state = *state; 507 return PNP_STATUS_SUCCESS; 508 509 case PNP_REQUEST_GET_STATE: 510 state = opaque; 511 *state = arg->p_cur_state; 512 return PNP_STATUS_SUCCESS; 513 514 default: 515 return PNP_STATUS_UNSUPPORTED; 516 } 517 } 518 519 static pnp_status_t 520 isa_generic_power_register_internal(device_t dv, 521 void (*p_suspend)(device_t), void (*p_resume)(device_t)) 522 { 523 struct isa_generic_power *arg = device_power_private(dv); 524 525 arg->p_cur_state = PNP_STATE_D0; 526 arg->p_resume = p_resume; 527 arg->p_suspend = p_suspend; 528 529 return pnp_register(dv, isa_generic_power); 530 } 531 532 static void 533 isa_generic_power_deregister_internal(device_t dv) 534 { 535 pnp_deregister(dv); 536 } 537 538 pnp_status_t 539 isa_generic_power_register(device_t dv, 540 void (*p_suspend)(device_t), void (*p_resume)(device_t)) 541 { 542 struct isa_generic_power *arg; 543 pnp_status_t status; 544 545 arg = malloc(sizeof(*arg), M_DEVBUF, M_ZERO | M_WAITOK); 546 device_power_set_private(dv, arg); 547 548 status = isa_generic_power_register_internal(dv, p_suspend, p_resume); 549 if (status != PNP_STATUS_SUCCESS) { 550 free(arg, M_DEVBUF); 551 device_power_set_private(dv, NULL); 552 } 553 return status; 554 } 555 556 void 557 isa_generic_power_deregister(device_t dv) 558 { 559 struct isa_generic_power *arg = device_power_private(dv); 560 561 if (arg == NULL) 562 return; 563 564 isa_generic_power_deregister_internal(dv); 565 free(arg, M_DEVBUF); 566 } 567
Indexes created Wed Oct 01 19:09:53 GMT 2025