1 /* $NetBSD: isa.c,v 1.119 2004/09/14 17:38:30 drochner 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 1.119 2004/09/14 17:38:30 drochner 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 <machine/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 locdesc_t *, void *); 77 int isasearch(struct device *, struct cfdata *, const locdesc_t *, void *); 78 79 int 80 isamatch(struct device *parent, struct cfdata *cf, void *aux) 81 { 82 /* XXX check other indicators */ 83 84 return (1); 85 } 86 87 void 88 isaattach(struct device *parent, struct device *self, void *aux) 89 { 90 struct isa_softc *sc = (struct isa_softc *)self; 91 struct isabus_attach_args *iba = aux; 92 static const int wildcard[7] = { 93 ISACF_PORT_DEFAULT, ISACF_SIZE_DEFAULT, 94 ISACF_IOMEM_DEFAULT, ISACF_IOSIZ_DEFAULT, 95 ISACF_IRQ_DEFAULT, ISACF_DRQ_DEFAULT, ISACF_DRQ2_DEFAULT 96 }; 97 98 TAILQ_INIT(&sc->sc_knowndevs); 99 sc->sc_dynamicdevs = 0; 100 101 isa_attach_hook(parent, self, iba); 102 printf("\n"); 103 104 /* XXX Add code to fetch known-devices. */ 105 106 sc->sc_iot = iba->iba_iot; 107 sc->sc_memt = iba->iba_memt; 108 sc->sc_dmat = iba->iba_dmat; 109 sc->sc_ic = iba->iba_ic; 110 111 #if NISAPNP > 0 112 /* 113 * Reset isapnp cards that the bios configured for us 114 */ 115 isapnp_isa_attach_hook(sc); 116 #endif 117 118 #if NISADMA > 0 119 /* 120 * Initialize our DMA state. 121 */ 122 isa_dmainit(sc->sc_ic, sc->sc_iot, sc->sc_dmat, self); 123 #endif 124 125 /* Attach all direct-config children. */ 126 isa_attach_knowndevs(sc); 127 128 /* 129 * If we don't support dynamic hello/goodbye of devices, 130 * then free the knowndevs info now. 131 */ 132 if (sc->sc_dynamicdevs == 0) 133 isa_free_knowndevs(sc); 134 135 /* Attach all indrect-config children. */ 136 isarescan(self, "isa", wildcard); 137 } 138 139 int 140 isarescan(struct device *self, const char *ifattr, const int *locators) 141 { 142 int help[8]; 143 locdesc_t *ldesc = (void *)help; /* XXX */; 144 145 ldesc->len = 7; 146 memcpy(&ldesc->locs, locators, 7 * sizeof(int)); 147 148 /* 149 * XXX Bus independant 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 (ldesc->locs[ISACF_SIZE] == -1) 155 ldesc->locs[ISACF_SIZE] = ISACF_SIZE_DEFAULT; 156 if (ldesc->locs[ISACF_IOSIZ] == -1) 157 ldesc->locs[ISACF_IOSIZ] = ISACF_IOSIZ_DEFAULT; 158 159 config_search_loc(isasearch, self, ifattr, ldesc, 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 locdesc_t *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 locdesc_t *ldesc, 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 help[8]; 394 locdesc_t *locs = (void *)&help; /* XXX */ 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, ldesc->locs)) 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 locs->len = 7; 440 locs->locs[ISACF_PORT] = ia.ia_io[0].ir_addr; 441 locs->locs[ISACF_SIZE] = ia.ia_io[0].ir_size; 442 locs->locs[ISACF_IOMEM] = ia.ia_iomem[0].ir_addr; 443 locs->locs[ISACF_IOSIZ] = ia.ia_iomem[0].ir_size; 444 locs->locs[ISACF_IRQ] = ia.ia_irq[0].ir_irq; 445 locs->locs[ISACF_DRQ] = ia.ia_drq[0].ir_drq; 446 locs->locs[ISACF_DRQ2] = ia.ia_drq[1].ir_drq; 447 config_attach_loc(parent, cf, locs, &ia, isaprint); 448 tryagain = (cf->cf_fstate == FSTATE_STAR); 449 } 450 } while (tryagain); 451 452 return (0); 453 } 454 455 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