pnpbios.c revision 1.75.4.2
1 /* $NetBSD: pnpbios.c,v 1.75.4.2 2021/03/21 17:35:44 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 2000 Jason R. Thorpe. All rights reserved. 5 * Copyright (c) 2000 Christian E. Hopps. All rights reserved. 6 * Copyright (c) 1999 7 * Matthias Drochner. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions, and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 /* 32 * PnP BIOS documentation is available at the following locations. 33 * 34 * http://www.microsoft.com/hwdev/download/respec/pnpbios.zip 35 * http://www.microsoft.com/hwdev/download/respec/biosclar.zip 36 * http://www.microsoft.com/hwdev/download/resources/specs/devids.txt 37 * 38 * PNPBIOSEVENTS is unfinished. After coding what I did I discovered 39 * I had no platforms to test on so someone else will need to finish 40 * it. I didn't want to toss the code though 41 */ 42 43 #include <sys/cdefs.h> 44 __KERNEL_RCSID(0, "$NetBSD: pnpbios.c,v 1.75.4.2 2021/03/21 17:35:44 thorpej Exp $"); 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/device.h> 49 #include <sys/malloc.h> 50 #include <sys/kernel.h> 51 #include <sys/kthread.h> 52 53 #include <uvm/uvm_extern.h> 54 55 #include <machine/isa_machdep.h> 56 #include <machine/segments.h> 57 58 #include <dev/isa/isareg.h> 59 #include <dev/isapnp/isapnpreg.h> 60 61 #include <arch/i386/pnpbios/pnpbiosvar.h> 62 #include <arch/i386/pnpbios/pnpbiosreg.h> 63 64 #include "opt_pnpbios.h" 65 #include "locators.h" 66 67 #ifdef PNPBIOSVERBOSE 68 int pnpbiosverbose = 1; 69 #else 70 int pnpbiosverbose = 0; 71 #endif 72 73 #ifdef PNPBIOSDEBUG 74 #ifdef PNPBIOSDEBUG_VALUE 75 int pnpbiosdebug = PNPBIOSDEBUG_VALUE; 76 #else 77 int pnpbiosdebug = 1; 78 #endif 79 #define DPRINTF(x) if (pnpbiosdebug) aprint_normal x 80 #else 81 #define DPRINTF(x) 82 #endif 83 84 #ifdef PNPBIOSEVENTSDEBUG 85 #define EDPRINTF(x) aprint_normal x 86 #else 87 #define EDPRINTF(x) 88 #endif 89 90 struct pnpbios_softc { 91 device_t sc_dev; 92 isa_chipset_tag_t sc_ic; 93 lwp_t *sc_evthread; 94 int sc_version; 95 int sc_control; 96 #ifdef PNPBIOSEVENTS 97 uint8_t * sc_evaddr; 98 int sc_threadrun; 99 int sc_docked; 100 #endif 101 }; 102 103 #define PNPGET4(p) ((p)[0] + ((p)[1] << 8) + \ 104 ((p)[2] << 16) + ((p)[3] << 24)) 105 106 /* bios calls */ 107 #if 0 108 /* XXX these are not called */ 109 static int pnpbios_getapmtable(uint8_t *, size_t *); 110 static int pnpbios_setnode(int, int, 111 const uint8_t *, size_t); 112 #endif 113 114 static int pnpbios_getnode(int, int *, 115 uint8_t *, size_t); 116 static int pnpbios_getnumnodes(int *, size_t *); 117 118 #ifdef PNPBIOSEVENTS 119 static int pnpbios_getdockinfo(struct pnpdockinfo *); 120 121 static int pnpbios_getevent(uint16_t *); 122 static void pnpbios_event_thread(void *); 123 static int pnpbios_sendmessage(int); 124 #endif 125 126 /* configuration stuff */ 127 static void * pnpbios_mapit(paddr_t, u_long, vm_prot_t); 128 static void * pnpbios_find(void); 129 static int pnpbios_match(device_t, cfdata_t, void *); 130 static void pnpbios_attach(device_t, device_t, void *); 131 static void pnpbios_printres(struct pnpresources *); 132 static int pnpbios_print(void *aux, const char *); 133 static void pnpbios_id_to_string(uint32_t, char *); 134 static int pnpbios_attachnode(struct pnpbios_softc *, 135 int, const uint8_t *, 136 size_t, int); 137 138 static int pnp_scan(const uint8_t **, size_t, 139 struct pnpresources *, int); 140 extern int pnpbioscall(int); 141 142 static void pnpbios_enumerate(struct pnpbios_softc *); 143 #ifdef PNPBIOSEVENTS 144 static int pnpbios_update_dock_status(struct pnpbios_softc *); 145 #endif 146 147 /* scanning functions */ 148 static int pnp_compatid(struct pnpresources *, const void *, size_t); 149 static int pnp_newirq(struct pnpresources *, const void *, size_t); 150 static int pnp_newdma(struct pnpresources *, const void *, size_t); 151 static int pnp_newioport(struct pnpresources *, const void *, size_t); 152 static int pnp_newfixedioport(struct pnpresources *, const void *, size_t); 153 #ifdef PNPBIOSDEBUG 154 static int pnp_debugdump(struct pnpresources *, const void *, size_t); 155 #endif 156 157 /* 158 * small resource types (beginning with 1) 159 */ 160 static const struct{ 161 int (*handler)(struct pnpresources *, const void *, size_t); 162 int minlen, maxlen; 163 } smallrescs[] = { 164 {0, 2, 2}, /* PnP version number */ 165 {0, 5, 6}, /* logical device id */ 166 {pnp_compatid, 4, 4}, /* compatible device id */ 167 {pnp_newirq, 2, 3}, /* irq descriptor */ 168 {pnp_newdma, 2, 2}, /* DMA descriptor */ 169 {0, 0, 1}, /* start dep */ 170 {0, 0, 0}, /* end dep */ 171 {pnp_newioport, 7, 7}, /* io descriptor */ 172 {pnp_newfixedioport, 3, 3}, /* fixed io descriptor */ 173 {0, -1, -1}, /* reserved */ 174 {0, -1, -1}, 175 {0, -1, -1}, 176 {0, -1, -1}, 177 {0, 1, 7}, /* vendor defined */ 178 {0, 1, 1} /* end */ 179 }; 180 181 182 CFATTACH_DECL_NEW(pnpbios, sizeof(struct pnpbios_softc), 183 pnpbios_match, pnpbios_attach, NULL, NULL); 184 185 /* 186 * Private stack and return value buffer. Spec (1.0a, ch. 4.3) says that 187 * 1024 bytes must be available to the BIOS function. 188 */ 189 #define PNPBIOS_BUFSIZE 4096 190 191 int pnpbios_enabled = 1; 192 size_t pnpbios_entry; 193 char *pnpbios_scratchbuf; 194 195 /* 196 * There can be only one of these, and the i386 ISA code needs to 197 * reference this. 198 */ 199 struct pnpbios_softc *pnpbios_softc; 200 201 #define PNPBIOS_SIGNATURE ('$' | ('P' << 8) | ('n' << 16) | ('P' << 24)) 202 203 static void * 204 pnpbios_find(void) 205 { 206 char *p, *c; 207 uint8_t cksum; 208 size_t structlen; 209 210 for (p = (char *)ISA_HOLE_VADDR(0xf0000); 211 p <= (char *)ISA_HOLE_VADDR(0xffff0); 212 p += 16) { 213 if (*(int *)p != PNPBIOS_SIGNATURE) 214 continue; 215 structlen = *(uint8_t *)(p + 5); 216 if ((structlen < 0x21) || 217 ((p + structlen - 1) > (char *)ISA_HOLE_VADDR(0xfffff))) 218 continue; 219 220 cksum = 0; 221 for (c = p; c < p + structlen; c++) 222 cksum += *(uint8_t *)c; 223 if (cksum != 0) 224 continue; 225 226 if (*(char *)(p + 4) != 0x10) { 227 printf("unknown version %x\n", *(char *)(p + 4)); 228 continue; 229 } 230 231 return (p); 232 } 233 234 return (0); 235 } 236 237 int 238 pnpbios_probe(void) 239 { 240 241 return (pnpbios_find() != 0); 242 } 243 244 static int 245 pnpbios_match(device_t parent, cfdata_t match, void *aux) 246 { 247 248 /* There can be only one! */ 249 if (pnpbios_softc != NULL) 250 return (0); 251 252 return (pnpbios_enabled); 253 } 254 255 static void * 256 pnpbios_mapit(paddr_t addr, u_long len, vm_prot_t prot) 257 { 258 paddr_t startpa, pa, endpa; 259 vaddr_t startva, va; 260 261 pa = startpa = x86_trunc_page(addr); 262 endpa = x86_round_page(addr + len); 263 264 va = startva = uvm_km_alloc(kernel_map, endpa - startpa, 0, 265 UVM_KMF_VAONLY); 266 if (!startva) 267 return (0); 268 for (; pa < endpa; pa += PAGE_SIZE, va += PAGE_SIZE) 269 pmap_kenter_pa(va, pa, prot, 0); 270 pmap_update(pmap_kernel()); 271 272 return ((void *)(startva + (vaddr_t)(addr - startpa))); 273 } 274 275 static void 276 pnpbios_attach(device_t parent, device_t self, void *aux) 277 { 278 struct pnpbios_softc *sc = device_private(self); 279 struct pnpbios_attach_args *paa = aux; 280 char *p; 281 unsigned int codepbase, datapbase, evaddrp; 282 void *codeva, *datava; 283 extern char pnpbiostramp[], epnpbiostramp[]; 284 int res, num, size; 285 #ifdef PNPBIOSEVENTS 286 int evtype; 287 #endif 288 289 aprint_naive("\n"); 290 291 pnpbios_softc = sc; 292 sc->sc_dev = self; 293 sc->sc_ic = paa->paa_ic; 294 295 p = pnpbios_find(); 296 if (!p) 297 panic("pnpbios_attach: disappeared"); 298 299 sc->sc_version = *(uint8_t *)(p + 0x04); 300 sc->sc_control = *(uint8_t *)(p + 0x06); 301 evaddrp = *(uint32_t *)(p + 0x09); 302 codepbase = *(uint32_t *)(p + 0x13); 303 datapbase = *(uint32_t *)(p + 0x1d); 304 pnpbios_entry = *(uint16_t *)(p + 0x11); 305 306 if (pnpbiosverbose) { 307 aprint_normal(": code %x, data %x, entry %x, control %x," 308 " eventp %x\n%s", 309 codepbase, datapbase, pnpbios_entry, sc->sc_control, 310 (unsigned int)evaddrp, device_xname(self)); 311 } 312 313 #ifdef PNPBIOSEVENTS 314 /* if we have an event mechnism queue a thread to deal with them */ 315 evtype = (sc->sc_control & PNP_IC_CONTORL_EVENT_MASK); 316 if (evtype == PNP_IC_CONTROL_EVENT_POLL) { 317 sc->sc_evaddr = pnpbios_mapit(evaddrp, PAGE_SIZE, 318 VM_PROT_READ | VM_PROT_WRITE); 319 if (!sc->sc_evaddr) 320 aprint_error_dev(self, "couldn't map event flag 0x%08x\n", 321 evaddrp); 322 } 323 #endif 324 325 codeva = pnpbios_mapit(codepbase, 0x10000, 326 VM_PROT_READ | VM_PROT_WRITE | VM_PROT_EXECUTE); 327 datava = pnpbios_mapit(datapbase, 0x10000, 328 VM_PROT_READ | VM_PROT_WRITE); 329 if (codeva == 0 || datava == 0) { 330 aprint_error(": no vm for mapping\n"); 331 return; 332 } 333 pnpbios_scratchbuf = malloc(PNPBIOS_BUFSIZE, M_DEVBUF, M_WAITOK); 334 335 setsegment(&gdtstore[GPNPBIOSCODE_SEL].sd, codeva, 0xffff, 336 SDT_MEMERA, SEL_KPL, 0, 0); 337 setsegment(&gdtstore[GPNPBIOSDATA_SEL].sd, datava, 0xffff, 338 SDT_MEMRWA, SEL_KPL, 0, 0); 339 setsegment(&gdtstore[GPNPBIOSSCRATCH_SEL].sd, 340 pnpbios_scratchbuf, PNPBIOS_BUFSIZE - 1, 341 SDT_MEMRWA, SEL_KPL, 0, 0); 342 setsegment(&gdtstore[GPNPBIOSTRAMP_SEL].sd, 343 pnpbiostramp, epnpbiostramp - pnpbiostramp - 1, 344 SDT_MEMERA, SEL_KPL, 1, 0); 345 346 res = pnpbios_getnumnodes(&num, &size); 347 if (res) { 348 aprint_error(": pnpbios_getnumnodes: error %d\n", res); 349 return; 350 } 351 352 aprint_normal(": nodes %d, max len %d\n", num, size); 353 354 #ifdef PNPBIOSEVENTS 355 EDPRINTF(("%s: event flag vaddr 0x%08x\n", device_xname(self), 356 (int)sc->sc_evaddr)); 357 358 /* Set initial dock status. */ 359 sc->sc_docked = -1; 360 (void) pnpbios_update_dock_status(sc); 361 #endif 362 363 /* Enumerate the device nodes. */ 364 pnpbios_enumerate(sc); 365 366 #ifdef PNPBIOSEVENTS 367 /* if we have an event mechnism queue a thread to deal with them */ 368 /* XXX need to update with irq if we do that */ 369 if (evtype != PNP_IC_CONTROL_EVENT_NONE) { 370 if (evtype != PNP_IC_CONTROL_EVENT_POLL || sc->sc_evaddr) { 371 sc->sc_threadrun = 1; 372 config_pending_incr(sc->sc_dev); 373 if (kthread_create(PRI_NONE, 0, NULL, 374 pnpbios_event_thread, sc, &sc->sc_evthread, 375 "%s", device_xname(self))) 376 panic("pnpbios: create event thread"); 377 } 378 } 379 #endif 380 } 381 382 static void 383 pnpbios_enumerate(struct pnpbios_softc *sc) 384 { 385 int res, num, i, size, idx, dynidx; 386 struct pnpdevnode *dn; 387 uint8_t *buf; 388 389 res = pnpbios_getnumnodes(&num, &size); 390 if (res) { 391 aprint_error_dev(sc->sc_dev, "pnpbios_getnumnodes: error %d\n", 392 res); 393 return; 394 } 395 396 buf = malloc(size, M_DEVBUF, M_WAITOK); 397 398 /* 399 * Loop through the list of indices getting data and match/attaching 400 * each as appropriate. 401 * 402 * Unfortunately, some BIOSes seem to have fatal bugs getting the 403 * dynamic (i.e. currently active) configuration, for instance some 404 * Sony VAIO laptops, including the PCG-Z505HE. They don't have such a 405 * problem with that static (i.e. next boot time) configuration, 406 * however. The workaround is to get the static configuration for all 407 * indices, and only get dynamic configuration for devices where the 408 * match is positive. 409 * 410 * This seems to work conveniently as the indices that cause 411 * crashes (and it seems to vary from machine to machine) do not 412 * seem to be for devices that NetBSD's pnpbios supports. 413 */ 414 415 idx = 0; 416 for (i = 0; i < num && idx != 0xff; i++) { 417 DPRINTF(("%s: getting info for index %d\n", 418 device_xname(sc->sc_dev), idx)); 419 420 dynidx = idx; 421 422 res = pnpbios_getnode(PNP_CF_DEVCONF_STATIC, &idx, buf, size); 423 if (res) { 424 aprint_error_dev(sc->sc_dev, "index %d error %d " 425 "getting static configuration\n", idx, res); 426 continue; 427 } 428 dn = (struct pnpdevnode *)buf; 429 if (!pnpbios_attachnode(sc, dn->dn_handle, buf, dn->dn_size, 1)) { 430 DPRINTF(("%s handle %d: no match from static config\n", 431 device_xname(sc->sc_dev), dn->dn_handle)); 432 continue; 433 } 434 435 res = pnpbios_getnode(PNP_CF_DEVCONF_DYNAMIC, &dynidx, buf, size); 436 if (res) { 437 aprint_error_dev(sc->sc_dev, "index %d error %d " 438 "getting dynamic configuration\n", dynidx, res); 439 continue; 440 } 441 dn = (struct pnpdevnode *)buf; 442 if (!pnpbios_attachnode(sc, dn->dn_handle, buf, dn->dn_size, 0)) { 443 DPRINTF(("%s handle %d: no match from dynamic config\n", 444 device_xname(sc->sc_dev), dn->dn_handle)); 445 continue; 446 } 447 } 448 if (i != num) 449 aprint_error_dev(sc->sc_dev, "got only %d nodes\n", i); 450 if (idx != 0xff) 451 aprint_error_dev(sc->sc_dev, "last index %d\n", idx); 452 453 free(buf, M_DEVBUF); 454 } 455 456 #ifdef PNPBIOSEVENTS 457 static int 458 pnpbios_update_dock_status(struct pnpbios_softc *sc) 459 { 460 struct pnpdockinfo di; 461 const char *when, *style; 462 int res, odocked = sc->sc_docked; 463 464 res = pnpbios_getdockinfo(&di); 465 if (res == PNP_RC_SYSTEM_NOT_DOCKED) { 466 sc->sc_docked = 0; 467 if (odocked != sc->sc_docked) 468 printf("%s: not docked\n", device_xname(sc->sc_dev)); 469 } else if (res) { 470 EDPRINTF(("%s: dockinfo failed 0x%02x\n", 471 device_xname(sc->sc_dev), res)); 472 } else { 473 sc->sc_docked = 1; 474 if (odocked != sc->sc_docked) { 475 char idstr[8]; 476 pnpbios_id_to_string(di.di_id, idstr); 477 printf("%s: dock id %s", device_xname(sc->sc_dev), idstr); 478 if (pnpbiosverbose) { 479 if (di.di_serial != -1) 480 printf(", serial number %d", 481 di.di_serial); 482 } 483 switch (di.di_cap & PNP_DI_DOCK_STYLE_MASK) { 484 case PNP_DI_DOCK_STYLE_SUPRISE: 485 style = "surprise"; 486 break; 487 case PNP_DI_DOCK_STYLE_VCR: 488 style = "controlled"; 489 break; 490 default: 491 style = "<style unknown>"; 492 break; 493 } 494 switch (di.di_cap & PNP_DI_DOCK_WHEN_MASK) { 495 case PNP_DI_DOCK_WHEN_NO_POWER: 496 when = "cold"; 497 break; 498 case PNP_DI_DOCK_WHEN_SUSPENDED: 499 when = "warm"; 500 break; 501 case PNP_DI_DOCK_WHEN_RUNNING: 502 when = "hot"; 503 break; 504 case PNP_DI_DOCK_WHEN_RESERVED: 505 when = "<reserved>"; 506 break; 507 default: 508 when = "<dock type unknown>"; 509 break; 510 } 511 printf(", %s %s docking\n", style, when); 512 } 513 } 514 515 return (odocked); 516 } 517 #endif 518 519 static int 520 pnpbios_getnumnodes(int *nump, size_t *sizep) 521 { 522 int res; 523 short *help = (short *)(pnpbios_scratchbuf + PNPBIOS_BUFSIZE); 524 525 *--help = GSEL(GPNPBIOSDATA_SEL, SEL_KPL); 526 *--help = GSEL(GPNPBIOSSCRATCH_SEL, SEL_KPL); 527 *--help = 2; /* buffer offset for node size */ 528 *--help = GSEL(GPNPBIOSSCRATCH_SEL, SEL_KPL); 529 *--help = 0; /* buffer offset for numnodes */ 530 *--help = PNP_FC_GET_NUM_NODES; 531 532 res = pnpbioscall(((char *)help) - pnpbios_scratchbuf); 533 if (res) 534 return (res); 535 536 *nump = *(short *)(pnpbios_scratchbuf + 0); 537 *sizep = *(short *)(pnpbios_scratchbuf + 2); 538 return (0); 539 } 540 541 static int 542 pnpbios_getnode(int flags, int *idxp, uint8_t *buf, size_t len) 543 { 544 int res; 545 short *help = (short *)(pnpbios_scratchbuf + PNPBIOS_BUFSIZE); 546 547 *--help = GSEL(GPNPBIOSDATA_SEL, SEL_KPL); 548 *--help = flags; 549 *--help = GSEL(GPNPBIOSSCRATCH_SEL, SEL_KPL); 550 *--help = 2; /* buffer offset for node data */ 551 *--help = GSEL(GPNPBIOSSCRATCH_SEL, SEL_KPL); 552 *--help = 0; /* buffer offset for index in/out */ 553 *--help = PNP_FC_GET_DEVICE_NODE; 554 555 *(short *)(pnpbios_scratchbuf + 0) = *idxp; 556 557 res = pnpbioscall(((char *)help) - pnpbios_scratchbuf); 558 if (res) 559 return (res); 560 561 *idxp = *(short *)(pnpbios_scratchbuf + 0); 562 memcpy(buf, pnpbios_scratchbuf + 2, len); 563 return (0); 564 } 565 566 567 #if 0 568 /* XXX - pnpbios_setnode() is never called. */ 569 570 static int 571 pnpbios_setnode(int flags, int idx, const uint8_t *buf, size_t len) 572 { 573 short *help = (short *)(pnpbios_scratchbuf + PNPBIOS_BUFSIZE); 574 575 *--help = GSEL(GPNPBIOSDATA_SEL, SEL_KPL); 576 *--help = flags; 577 *--help = GSEL(GPNPBIOSSCRATCH_SEL, SEL_KPL); 578 *--help = 0; /* buffer offset for node data */ 579 *--help = idx; 580 *--help = PNP_FC_SET_DEVICE_NODE; 581 582 memcpy(pnpbios_scratchbuf, buf, len); 583 584 return (pnpbioscall(((void *)help) - pnpbios_scratchbuf)); 585 } 586 #endif /* 0 */ 587 588 #ifdef PNPBIOSEVENTS 589 static int 590 pnpbios_getevent(uint16_t *event) 591 { 592 int res; 593 short *help = (short *)(pnpbios_scratchbuf + PNPBIOS_BUFSIZE); 594 595 *--help = GSEL(GPNPBIOSDATA_SEL, SEL_KPL); 596 *--help = GSEL(GPNPBIOSSCRATCH_SEL, SEL_KPL); 597 *--help = 0; /* buffer offset for message data */ 598 *--help = PNP_FC_GET_EVENT; 599 600 res = pnpbioscall(((void *)help) - pnpbios_scratchbuf); 601 *event = pnpbios_scratchbuf[0] + (pnpbios_scratchbuf[1] << 8); 602 return (res); 603 } 604 605 static int 606 pnpbios_sendmessage(int msg) 607 { 608 short *help = (short *)(pnpbios_scratchbuf + PNPBIOS_BUFSIZE); 609 610 *--help = GSEL(GPNPBIOSDATA_SEL, SEL_KPL); 611 *--help = msg; 612 *--help = PNP_FC_SEND_MESSAGE; 613 614 return (pnpbioscall(((void *)help) - pnpbios_scratchbuf)); 615 } 616 617 static int 618 pnpbios_getdockinfo(struct pnpdockinfo *di) 619 { 620 int res; 621 short *help = (short *)(pnpbios_scratchbuf + PNPBIOS_BUFSIZE); 622 623 *--help = GSEL(GPNPBIOSDATA_SEL, SEL_KPL); 624 *--help = GSEL(GPNPBIOSSCRATCH_SEL, SEL_KPL); 625 *--help = 0; /* buffer offset for dock info */ 626 *--help = PNP_FC_GET_DOCK_INFO; 627 628 res = pnpbioscall(((void *)help) - pnpbios_scratchbuf); 629 memcpy(di, pnpbios_scratchbuf, sizeof(*di)); 630 return (res); 631 } 632 #endif /* PNPBIOSEVENTS */ 633 634 #if 0 635 /* XXX - pnpbios_getapmtable() is not called. */ 636 637 /* XXX we don't support more than PNPBIOS_BUFSIZE - (stacklen + 2) */ 638 static int 639 pnpbios_getapmtable(uint8_t *tab, size_t *len) 640 { 641 short *help = (short *)(pnpbios_scratchbuf + PNPBIOS_BUFSIZE); 642 size_t origlen, stacklen; 643 int res; 644 645 *--help = GSEL(GPNPBIOSDATA_SEL, SEL_KPL); 646 *--help = GSEL(GPNPBIOSSCRATCH_SEL, SEL_KPL); 647 *--help = 2; /* buffer offset for table */ 648 *--help = GSEL(GPNPBIOSSCRATCH_SEL, SEL_KPL); 649 *--help = 0; /* buffer offset for length */ 650 *--help = PNP_FC_GET_APM_TABLE; 651 652 origlen = *len; 653 stacklen = (void *)help - pnpbios_scratchbuf; 654 if (origlen > PNPBIOS_BUFSIZE - stacklen - 2) 655 origlen = PNPBIOS_BUFSIZE - stacklen - 2; 656 *(uint16_t *)(pnpbios_scratchbuf) = origlen; 657 658 res = pnpbioscall(((void *)help) - pnpbios_scratchbuf); 659 *len = *(uint16_t *)pnpbios_scratchbuf; 660 if (res) 661 return (res); 662 if (origlen && *len > origlen) { 663 printf("pnpbios: returned apm table exceed requested size\n"); 664 return (PNP_RC_BUFFER_TOO_SMALL); 665 } 666 memcpy(tab, pnpbios_scratchbuf + 2, *len); 667 return (0); 668 } 669 #endif 670 671 static void 672 pnpbios_id_to_string(uint32_t pnpid, char *s) 673 { 674 uint8_t *id; 675 676 id = (uint8_t *)&pnpid; 677 *s++ = 'A' + (id[0] >> 2) - 1; 678 *s++ = 'A' + ((id[0] & 3) << 3) + (id[1] >> 5) - 1; 679 *s++ = 'A' + (id[1] & 0x1f) - 1; 680 *s++ = HEXDIGITS[id[2] >> 4]; 681 *s++ = HEXDIGITS[id[2] & 0x0f]; 682 *s++ = HEXDIGITS[id[3] >> 4]; 683 *s++ = HEXDIGITS[id[3] & 0x0f]; 684 *s = '\0'; 685 } 686 687 static void 688 pnpbios_printres(struct pnpresources *r) 689 { 690 struct pnp_mem *mem; 691 struct pnp_io *io; 692 struct pnp_irq *irq; 693 struct pnp_dma *dma; 694 int p = 0; 695 696 mem = SIMPLEQ_FIRST(&r->mem); 697 if (mem) { 698 aprint_normal("mem"); 699 do { 700 aprint_normal(" %x", mem->minbase); 701 if (mem->len > 1) 702 aprint_normal("-%x", 703 mem->minbase + mem->len - 1); 704 } while ((mem = SIMPLEQ_NEXT(mem, next))); 705 p++; 706 } 707 io = SIMPLEQ_FIRST(&r->io); 708 if (io) { 709 if (p++) 710 aprint_normal(", "); 711 aprint_normal("io"); 712 do { 713 aprint_normal(" %x", io->minbase); 714 if (io->len > 1) 715 aprint_normal("-%x", 716 io->minbase + io->len - 1); 717 } while ((io = SIMPLEQ_NEXT(io, next))); 718 } 719 irq = SIMPLEQ_FIRST(&r->irq); 720 if (irq) { 721 if (p++) 722 aprint_normal(", "); 723 aprint_normal("irq"); 724 do { 725 aprint_normal(" %d", ffs(irq->mask) - 1); 726 } while ((irq = SIMPLEQ_NEXT(irq, next))); 727 } 728 dma = SIMPLEQ_FIRST(&r->dma); 729 if (dma) { 730 if (p) 731 aprint_normal(", "); 732 aprint_normal("DMA"); 733 do { 734 aprint_normal(" %d", ffs(dma->mask) - 1); 735 } while ((dma = SIMPLEQ_NEXT(dma, next))); 736 } 737 } 738 739 static int 740 pnpbios_print(void *aux, const char *pnp) 741 { 742 struct pnpbiosdev_attach_args *aa = aux; 743 744 if (pnp) 745 return (QUIET); 746 747 aprint_normal(" index %d (%s", aa->idx, aa->primid); 748 if (aa->resc->longname) 749 aprint_normal(", %s", aa->resc->longname); 750 if (aa->idstr != aa->primid) 751 aprint_normal(", attached as %s", aa->idstr); 752 aprint_normal(")"); 753 754 return (0); 755 } 756 757 void 758 pnpbios_print_devres(device_t dev, struct pnpbiosdev_attach_args *aa) 759 { 760 761 aprint_normal_dev(dev, ""); 762 pnpbios_printres(aa->resc); 763 aprint_normal("\n"); 764 } 765 766 static int 767 pnpbios_attachchild(struct pnpbios_softc *sc, 768 struct pnpbiosdev_attach_args *aa, int matchonly) 769 { 770 int locs[PNPBIOSCF_NLOCS]; 771 772 locs[PNPBIOSCF_INDEX] = aa->idx; 773 774 if (matchonly) 775 return (config_search(sc->sc_dev, aa, 776 CFARG_SUBMATCH, config_stdsubmatch, 777 CFARG_LOCATORS, locs, 778 CFARG_EOL) != NULL); 779 else 780 return (config_found_sm_loc(sc->sc_dev, "pnpbios", 781 locs, aa, pnpbios_print, config_stdsubmatch) 782 != NULL); 783 } 784 785 static int 786 pnpbios_attachnode(struct pnpbios_softc *sc, int idx, const uint8_t *buf, 787 size_t len, int matchonly) 788 { 789 const struct pnpdevnode *dn; 790 const uint8_t *p; 791 char idstr[8]; 792 struct pnpresources r, s; 793 struct pnpbiosdev_attach_args aa; 794 struct pnp_compatid *compatid; 795 int res, i; 796 797 dn = (const struct pnpdevnode *)buf; 798 pnpbios_id_to_string(dn->dn_product, idstr); 799 p = (const u_char *)(dn + 1); 800 801 DPRINTF(("%s (%s): type 0x%02x subtype " 802 "0x%02x dpi 0x%02x attr 0x%04x:\n", 803 idstr, matchonly ? "static" : "dynamic", dn->dn_type, 804 dn->dn_subtype, dn->dn_dpi, dn->dn_attr)); 805 DPRINTF(("%s: allocated config scan:\n", idstr)); 806 res = pnp_scan(&p, len - 12, &r, 0); 807 if (res < 0) { 808 aprint_error("error in config data\n"); 809 goto dump; 810 } 811 812 /* 813 * the following is consistency check only for now 814 */ 815 DPRINTF(("\tpossible config scan:\n")); 816 res = pnp_scan(&p, len - (p - buf), &s, 0); 817 if (res < 0) { 818 aprint_error("error in possible configuration\n"); 819 goto dump; 820 } 821 822 DPRINTF(("\tcompat id scan:\n")); 823 res = pnp_scan(&p, len - (p - buf), &s, 0); 824 if (res < 0) { 825 aprint_error("error in compatible ID\n"); 826 goto dump; 827 } 828 829 if (p != buf + len) { 830 aprint_error_dev(sc->sc_dev, "length mismatch in node %d:" 831 " used %d of %d Bytes\n", 832 idx, p - buf, len); 833 if (p > buf + len) { 834 /* XXX shouldn't happen - pnp_scan should catch it */ 835 goto dump; 836 } 837 /* Crappy BIOS: Buffer is not fully used. Be generous. */ 838 } 839 840 if (r.nummem + r.numio + r.numirq + r.numdma == 0) { 841 if (pnpbiosverbose) { 842 aprint_normal("%s", idstr); 843 if (r.longname) 844 aprint_normal(", %s", r.longname); 845 compatid = s.compatids; 846 while (compatid) { 847 aprint_normal(", %s", compatid->idstr); 848 compatid = compatid->next; 849 } 850 aprint_normal(" at %s index %d disabled\n", 851 device_xname(sc->sc_dev), idx); 852 } 853 return 0; 854 } 855 856 aa.pbt = 0; /* XXX placeholder */ 857 aa.idx = idx; 858 aa.resc = &r; 859 aa.ic = sc->sc_ic; 860 aa.primid = idstr; 861 862 /* first try the specific device ID */ 863 aa.idstr = idstr; 864 if (pnpbios_attachchild(sc, &aa, matchonly)) 865 return -1; 866 867 /* if no driver was found, try compatible IDs */ 868 compatid = s.compatids; 869 while (compatid) { 870 aa.idstr = compatid->idstr; 871 if (pnpbios_attachchild(sc, &aa, matchonly)) 872 return -1; 873 compatid = compatid->next; 874 } 875 876 if (pnpbiosverbose) { 877 aprint_normal("%s", idstr); 878 if (r.longname) 879 aprint_normal(", %s", r.longname); 880 compatid = s.compatids; 881 while (compatid) { 882 aprint_normal(", %s", compatid->idstr); 883 compatid = compatid->next; 884 } 885 aprint_normal(" ("); 886 pnpbios_printres(&r); 887 aprint_normal(") at %s index %d ignored\n", 888 device_xname(sc->sc_dev), idx); 889 } 890 891 return 0; 892 893 /* XXX should free resource lists */ 894 895 dump: 896 i = 0; 897 #ifdef PNPBIOSDEBUG 898 /* print some useful info */ 899 if (len >= sizeof(*dn)) { 900 aprint_normal("%s idx %d size %d type 0x%x:0x%x:0x%x attr 0x%x\n", 901 idstr, dn->dn_handle, dn->dn_size, dn->dn_type, 902 dn->dn_subtype, dn->dn_dpi, dn->dn_attr); 903 i += sizeof(*dn); 904 } 905 #endif 906 for (; i < len; i++) 907 aprint_normal(" %02x", buf[i]); 908 aprint_normal("\n"); 909 return 0; 910 } 911 912 static int 913 pnp_scan(const uint8_t **bufp, size_t maxlen, 914 struct pnpresources *r, int in_depends) 915 { 916 const void *start; 917 const uint8_t *p; 918 struct pnp_mem *mem; 919 int tag, type, len; 920 char *idstr; 921 int i; 922 923 p = *bufp; 924 925 memset(r, 0, sizeof(*r)); 926 SIMPLEQ_INIT(&r->mem); 927 SIMPLEQ_INIT(&r->io); 928 SIMPLEQ_INIT(&r->irq); 929 SIMPLEQ_INIT(&r->dma); 930 931 for (;;) { 932 if (p >= *bufp + maxlen) { 933 aprint_normal("pnp_scanresources: end of buffer\n"); 934 return (-1); 935 } 936 start = p; 937 tag = *p; 938 if (tag & ISAPNP_LARGE_TAG) { 939 len = *(const uint16_t *)(p + 1); 940 p += sizeof(struct pnplargeres) + len; 941 942 switch (tag) { 943 case ISAPNP_TAG_MEM_RANGE_DESC: { 944 const struct pnpmem16rangeres *res = start; 945 if (len != sizeof(*res) - 3) { 946 aprint_normal("pnp_scan: bad mem desc\n"); 947 return (-1); 948 } 949 950 mem = malloc(sizeof(struct pnp_mem), 951 M_DEVBUF, M_WAITOK); 952 mem->flags = res->r_flags; 953 mem->minbase = res->r_minbase << 8; 954 mem->maxbase = res->r_maxbase << 8; 955 mem->align = res->r_align; 956 if (mem->align == 0) 957 mem->align = 0x10000; 958 mem->len = res->r_len << 8; 959 DPRINTF(("\ttag memrange ")); 960 goto gotmem; 961 } 962 case ISAPNP_TAG_ANSI_IDENT_STRING: { 963 const struct pnpansiidentres *res = start; 964 if (in_depends) 965 aprint_normal("ID in dep?\n"); 966 idstr = malloc(len + 1, M_DEVBUF, M_WAITOK); 967 for (i = 0; i < len; i++) 968 idstr[i] = res->r_id[i]; 969 idstr[len] = '\0'; 970 971 DPRINTF(("\ttag ansiident %s\n", idstr)); 972 973 if (idstr[0] == '\0') { 974 /* disabled device */ 975 free(idstr, M_DEVBUF); 976 break; 977 } 978 r->longname = idstr; 979 break; 980 } 981 case ISAPNP_TAG_MEM32_RANGE_DESC: { 982 const struct pnpmem32rangeres *res = start; 983 if (len != sizeof(*res) - 3) { 984 aprint_normal("pnp_scan: bad mem32 desc\n"); 985 return (-1); 986 } 987 988 mem = malloc(sizeof(struct pnp_mem), 989 M_DEVBUF, M_WAITOK); 990 mem->flags = res->r_flags; 991 mem->minbase = res->r_minbase; 992 mem->maxbase = res->r_maxbase; 993 mem->align = res->r_align; 994 mem->len = res->r_len; 995 DPRINTF(("\ttag mem32range ")); 996 goto gotmem; 997 } 998 case ISAPNP_TAG_FIXED_MEM32_RANGE_DESC: { 999 const struct pnpfixedmem32rangeres *res = start; 1000 if (len != sizeof(*res) - 3) { 1001 aprint_normal("pnp_scan: bad mem32 desc\n"); 1002 return (-1); 1003 } 1004 1005 mem = malloc(sizeof(struct pnp_mem), 1006 M_DEVBUF, M_WAITOK); 1007 mem->flags = res->r_flags; 1008 mem->minbase = res->r_base; 1009 mem->maxbase = mem->minbase; 1010 mem->align = 0; 1011 mem->len = res->r_len; 1012 DPRINTF(("\ttag fixedmem32range ")); 1013 gotmem: 1014 if (mem->len == 0) { /* disabled */ 1015 DPRINTF(("zeroed\n")); 1016 free(mem, M_DEVBUF); 1017 break; 1018 } 1019 SIMPLEQ_INSERT_TAIL(&r->mem, mem, next); 1020 r->nummem++; 1021 1022 DPRINTF(("flags %02x min %08x max %08x " 1023 "align %08x len %08x\n", mem->flags, 1024 mem->minbase, mem->maxbase, mem->align, 1025 mem->len)); 1026 1027 break; 1028 } 1029 case ISAPNP_TAG_UNICODE_IDENT_STRING: 1030 case ISAPNP_TAG_VENDOR_DEFINED: 1031 default: 1032 #ifdef PNPBIOSDEBUG 1033 pnp_debugdump(r, start, len); 1034 #endif 1035 break; 1036 } 1037 } else { 1038 type = (tag >> 3) & 0x0f; 1039 len = tag & 0x07; 1040 p += 1 + len; 1041 1042 if (type == 0 || 1043 len < smallrescs[type - 1].minlen || 1044 len > smallrescs[type - 1].maxlen) { 1045 aprint_normal("pnp_scan: bad small resource\n"); 1046 return (-1); 1047 } 1048 if (type == ISAPNP_TAG_END) { 1049 #ifdef PNPBIOSDEBUG 1050 const struct pnpendres *res = start; 1051 #endif 1052 if (in_depends) { 1053 /* 1054 * this seems to occur and is 1055 * an optimization to not require 1056 * the end dep in a depend 1057 * that ends the section 1058 */ 1059 p -= 1 + len; 1060 } 1061 DPRINTF(("\ttag end cksum %02x\n", 1062 res->r_cksum)); 1063 break; 1064 } 1065 if (type == ISAPNP_TAG_DEP_START) { 1066 #ifdef PNPBIOSDEBUG 1067 const struct pnpdepstartres *res = start; 1068 #endif 1069 struct pnpresources *new, *last; 1070 int rv; 1071 1072 DPRINTF(("\ttag startdep flags %02x\n", 1073 len ? res->r_pri : ISAPNP_DEP_ACCEPTABLE)); 1074 1075 if (r->dependent_link) { 1076 aprint_normal("second dep?\n"); 1077 return (-1); 1078 } 1079 /* XXX not sure about this */ 1080 if (in_depends) { 1081 *bufp = p; 1082 return (1); 1083 } 1084 last = r; 1085 do { 1086 new = malloc(sizeof(*new), 1087 M_DEVBUF, M_WAITOK); 1088 1089 rv = pnp_scan(&p, maxlen - (p - *bufp), 1090 new, 1); 1091 if (rv < 0) { 1092 aprint_normal("error in" 1093 " dependent function\n"); 1094 free(new, M_DEVBUF); 1095 return (-1); 1096 } 1097 last->dependent_link = new; 1098 last = new; 1099 } while (rv > 0); 1100 continue; 1101 } 1102 if (type == ISAPNP_TAG_DEP_END) { 1103 DPRINTF(("\ttag enddep\n")); 1104 if (!in_depends) { 1105 aprint_normal("tag %d end dep?\n", tag); 1106 return (-1); 1107 } 1108 break; 1109 } 1110 if (!smallrescs[type - 1].handler) { 1111 #ifdef PNPBIOSDEBUG 1112 pnp_debugdump(r, start, len); 1113 #endif 1114 } else if ( 1115 (*smallrescs[type - 1].handler)(r, start, len)) 1116 return (-1); 1117 } 1118 } 1119 *bufp = p; 1120 return (0); 1121 } 1122 1123 static int 1124 pnp_newirq(struct pnpresources *r, const void *vres, size_t len) 1125 { 1126 const struct pnpirqres *res; 1127 struct pnp_irq *irq; 1128 1129 res = vres; 1130 if (res->r_mask == 0) { /* disabled */ 1131 DPRINTF(("\ttag irq zeroed\n")); 1132 return (0); 1133 } 1134 irq = malloc(sizeof(struct pnp_irq), M_DEVBUF, M_WAITOK); 1135 irq->mask = res->r_mask; 1136 if (len > 2) 1137 irq->flags = res->r_info; 1138 else 1139 irq->flags = 0x01; 1140 SIMPLEQ_INSERT_TAIL(&r->irq, irq, next); 1141 r->numirq++; 1142 1143 DPRINTF(("\ttag irq flags %02x mask %04x\n", irq->flags,irq->mask)); 1144 1145 return (0); 1146 } 1147 1148 static int 1149 pnp_newdma(struct pnpresources *r, const void *vres, size_t len) 1150 { 1151 const struct pnpdmares *res; 1152 struct pnp_dma *dma; 1153 1154 res = vres; 1155 if (res->r_mask == 0) { /* disabled */ 1156 DPRINTF(("\ttag DMA zeroed\n")); 1157 return (0); 1158 } 1159 dma = malloc(sizeof(struct pnp_dma), M_DEVBUF, M_WAITOK); 1160 dma->mask = res->r_mask; 1161 dma->flags = res->r_flags; 1162 SIMPLEQ_INSERT_TAIL(&r->dma, dma, next); 1163 r->numdma++; 1164 1165 DPRINTF(("\ttag DMA flags %02x mask %02x\n", dma->flags,dma->mask)); 1166 1167 return (0); 1168 } 1169 1170 static int 1171 pnp_newioport(struct pnpresources *r, const void *vres, size_t len) 1172 { 1173 const struct pnpportres *res; 1174 struct pnp_io *io; 1175 1176 res = vres; 1177 if (res->r_len == 0) { /* disabled */ 1178 DPRINTF(("\ttag io zeroed\n")); 1179 return (0); 1180 } 1181 io = malloc(sizeof(struct pnp_io), M_DEVBUF, M_WAITOK); 1182 io->flags = res->r_flags; 1183 io->minbase = res->r_minbase; 1184 io->maxbase = res->r_maxbase; 1185 io->align = res->r_align; 1186 io->len = res->r_len; 1187 SIMPLEQ_INSERT_TAIL(&r->io, io, next); 1188 r->numio++; 1189 1190 DPRINTF(("\ttag io flags %02x min %04x max %04x align " 1191 "0x%02x len 0x%02x\n", io->flags, io->minbase, io->maxbase, 1192 io->align, io->len)); 1193 1194 return (0); 1195 } 1196 1197 static int 1198 pnp_newfixedioport(struct pnpresources *r, const void *vres, 1199 size_t len) 1200 { 1201 const struct pnpfixedportres *res; 1202 struct pnp_io *io; 1203 1204 res = vres; 1205 if (res->r_len == 0) { /* disabled */ 1206 DPRINTF(("\ttag fixedio zeroed\n")); 1207 return (0); 1208 } 1209 io = malloc(sizeof(struct pnp_io), M_DEVBUF, M_WAITOK); 1210 io->flags = 1; /* 10 bit decoding */ 1211 io->minbase = io->maxbase = res->r_base; 1212 io->align = 1; 1213 io->len = res->r_len; 1214 SIMPLEQ_INSERT_TAIL(&r->io, io, next); 1215 r->numio++; 1216 1217 DPRINTF(("\ttag fixedio flags %02x base %04x align %02x len %02x\n", 1218 io->flags, io->minbase, io->align, io->len)); 1219 1220 return (0); 1221 } 1222 1223 static int 1224 pnp_compatid(struct pnpresources *r, const void *vres, size_t len) 1225 { 1226 const struct pnpcompatres *res; 1227 struct pnp_compatid *id; 1228 1229 res = vres; 1230 id = malloc(sizeof(*id), M_DEVBUF, M_WAITOK); 1231 pnpbios_id_to_string(res->r_id, id->idstr); 1232 id->next = r->compatids; 1233 r->compatids = id; 1234 1235 DPRINTF(("\ttag compatid %s\n", id->idstr)); 1236 1237 return (0); 1238 } 1239 1240 #ifdef PNPBIOSDEBUG 1241 static int 1242 pnp_debugdump(struct pnpresources *r, const void *vres, size_t len) 1243 { 1244 const uint8_t *res = vres; 1245 int type, i; 1246 1247 if (res[0] & ISAPNP_LARGE_TAG) { 1248 type = res[0] & 0x7f; 1249 aprint_normal("\tTAG %02x len %04x %s", 1250 type, len, len ? "data" : ""); 1251 i = 3; 1252 } else { 1253 type = (res[0] >> 3) & 0x0f; 1254 aprint_normal("\tTAG %02x len %02x %s", 1255 type, len, len ? "data" : ""); 1256 i = 1; 1257 } 1258 for (; i < len; i++) 1259 aprint_normal(" %02x", res[i]); 1260 aprint_normal("\n"); 1261 1262 return (0); 1263 } 1264 #endif 1265 1266 int 1267 pnpbios_io_map(pnpbios_tag_t pbt, struct pnpresources *resc, 1268 int idx, bus_space_tag_t *tagp, bus_space_handle_t *hdlp) 1269 { 1270 struct pnp_io *io; 1271 1272 if (idx >= resc->numio) 1273 return (EINVAL); 1274 1275 io = SIMPLEQ_FIRST(&resc->io); 1276 while (idx--) 1277 io = SIMPLEQ_NEXT(io, next); 1278 1279 *tagp = x86_bus_space_io; 1280 return (bus_space_map(x86_bus_space_io, io->minbase, io->len, 1281 0, hdlp)); 1282 } 1283 1284 void 1285 pnpbios_io_unmap(pnpbios_tag_t pbt, struct pnpresources *resc, 1286 int idx, bus_space_tag_t tag, bus_space_handle_t hdl) 1287 { 1288 struct pnp_io *io; 1289 1290 if (idx >= resc->numio) 1291 return; 1292 1293 io = SIMPLEQ_FIRST(&resc->io); 1294 while (idx--) 1295 io = SIMPLEQ_NEXT(io, next); 1296 1297 bus_space_unmap(tag, hdl, io->len); 1298 } 1299 1300 int 1301 pnpbios_getiobase(pnpbios_tag_t pbt, struct pnpresources *resc, 1302 int idx, bus_space_tag_t *tagp, int *basep) 1303 { 1304 struct pnp_io *io; 1305 1306 if (idx >= resc->numio) 1307 return (EINVAL); 1308 1309 io = SIMPLEQ_FIRST(&resc->io); 1310 while (idx--) 1311 io = SIMPLEQ_NEXT(io, next); 1312 1313 if (tagp) 1314 *tagp = x86_bus_space_io; 1315 if (basep) 1316 *basep = io->minbase; 1317 return (0); 1318 } 1319 1320 int 1321 pnpbios_getiosize(pnpbios_tag_t pbt, struct pnpresources *resc, 1322 int idx, int *sizep) 1323 { 1324 struct pnp_io *io; 1325 1326 if (idx >= resc->numio) 1327 return (EINVAL); 1328 1329 io = SIMPLEQ_FIRST(&resc->io); 1330 while (idx--) 1331 io = SIMPLEQ_NEXT(io, next); 1332 if (sizep) 1333 *sizep = io->len; 1334 return (0); 1335 } 1336 1337 void * 1338 pnpbios_intr_establish(pnpbios_tag_t pbt, struct pnpresources *resc, 1339 int idx, int level, int (*fcn)(void *), void *arg) 1340 { 1341 struct pnp_irq *irq; 1342 int irqnum, type; 1343 1344 if (idx >= resc->numirq) 1345 return (0); 1346 1347 irq = SIMPLEQ_FIRST(&resc->irq); 1348 while (idx--) 1349 irq = SIMPLEQ_NEXT(irq, next); 1350 1351 irqnum = ffs(irq->mask) - 1; 1352 type = (irq->flags & 0x0c) ? IST_LEVEL : IST_EDGE; 1353 1354 return (isa_intr_establish(0, irqnum, type, level, fcn, arg)); 1355 } 1356 1357 int 1358 pnpbios_getirqnum(pnpbios_tag_t pbt, struct pnpresources *resc, 1359 int idx, int *irqp, int *istp) 1360 { 1361 struct pnp_irq *irq; 1362 1363 if (idx >= resc->numirq) 1364 return (EINVAL); 1365 1366 irq = SIMPLEQ_FIRST(&resc->irq); 1367 while (idx--) 1368 irq = SIMPLEQ_NEXT(irq, next); 1369 1370 if (irqp != NULL) 1371 *irqp = ffs(irq->mask) - 1; 1372 if (istp != NULL) 1373 *istp = (irq->flags & 0x0c) ? IST_LEVEL : IST_EDGE; 1374 return (0); 1375 } 1376 1377 int 1378 pnpbios_getdmachan(pnpbios_tag_t pbt, struct pnpresources *resc, 1379 int idx, int *chanp) 1380 { 1381 struct pnp_dma *dma; 1382 1383 if (idx >= resc->numdma) 1384 return (EINVAL); 1385 1386 dma = SIMPLEQ_FIRST(&resc->dma); 1387 while (idx--) 1388 dma = SIMPLEQ_NEXT(dma, next); 1389 1390 *chanp = ffs(dma->mask) - 1; 1391 return (0); 1392 } 1393 1394 #ifdef PNPBIOSEVENTS 1395 static void 1396 pnpbios_event_thread(void *arg) 1397 { 1398 struct pnpbios_softc *sc; 1399 uint16_t event; 1400 u_int evflag; 1401 int rv, poll; 1402 1403 sc = arg; 1404 if ((sc->sc_control & PNP_IC_CONTORL_EVENT_MASK) 1405 != PNP_IC_CONTROL_EVENT_POLL) 1406 poll = 0; 1407 else { 1408 poll = hz; 1409 rv = pnpbios_sendmessage(PNP_CM_PNP_OS_ACTIVE); 1410 EDPRINTF(("pnpbios: os active returns 0x%02x\n", rv)); 1411 } 1412 1413 config_pending_decr(sc->sc_dev); 1414 1415 goto start; 1416 while (sc->sc_threadrun) { 1417 /* maybe we have an event */ 1418 if (!poll) 1419 (void)tsleep(pnpbios_event_thread, PWAIT, 1420 "pnpbiosevent", 0); 1421 else if (((evflag = *sc->sc_evaddr) & 0x01) == 0) { 1422 if (evflag) 1423 EDPRINTF(("pnpbios: evflags 0x%02x\n", evflag)); 1424 (void)tsleep(pnpbios_event_thread, PWAIT, 1425 "pnpbiosevent", poll); 1426 continue; 1427 } else { 1428 EDPRINTF(("pnpbios: evflags 0x%02x\n", evflag)); 1429 } 1430 start: 1431 if ((rv = pnpbios_getevent(&event))) { 1432 EDPRINTF(("pnpbios: getevent rc: 0x%02x\n", rv)); 1433 #ifdef DIAGNOSTIC 1434 if (rv != PNP_RC_EVENTS_NOT_PENDING) 1435 printf("%s: getevent failed: %d\n", 1436 device_xname(sc->sc_dev), rv); 1437 #endif 1438 continue; 1439 } 1440 switch (event) { 1441 case PNP_EID_ABOUT_TO_CHANGE_CONFIG: 1442 EDPRINTF(("pnpbios: about to change event\n")); 1443 /* 1444 * The system is about to be docked or undocked. 1445 * Acknowledge the event, so that the procedure 1446 * can continue. 1447 * XXX When should we ever send an ABORT? 1448 */ 1449 pnpbios_sendmessage(PNP_RM_OK); 1450 break; 1451 case PNP_EID_DOCK_CHANGED: 1452 { 1453 int odocked; 1454 1455 EDPRINTF(("pnpbios: dock changed event\n")); 1456 1457 odocked = pnpbios_update_dock_status(sc); 1458 if (odocked == sc->sc_docked) 1459 break; 1460 switch (sc->sc_docked) { 1461 case 0: 1462 /* We have been undocked. */ 1463 /* XXX detach devices XXX */ 1464 break; 1465 1466 case 1: 1467 /* We have been docked. */ 1468 /* XXX attach devices XXX */ 1469 break; 1470 1471 default: 1472 /* getdockinfo failed! */ 1473 printf("%s: dock changed event, but unable " 1474 "to get dock info; event ignored\n", 1475 device_xname(sc->sc_dev)); 1476 } 1477 break; 1478 } 1479 case PNP_EID_SYSTEM_DEVICE_CHANGED: 1480 EDPRINTF(("pnpbios: system device changed event\n")); 1481 break; 1482 case PNP_EID_CONFIG_CHANGE_FAILED: 1483 EDPRINTF(("pnpbios: config changed event\n")); 1484 break; 1485 case PNP_EID_UNKNOWN_SYSTEM_EVENT: 1486 #ifdef DIAGNOSTIC 1487 printf("%s: \"unknown system event\"\n", 1488 device_xname(sc->sc_dev)); 1489 #endif 1490 break; 1491 default: 1492 #ifdef DIAGNOSTIC 1493 if (event & PNP_EID_OEM_DEFINED_BIT) 1494 printf("%s: vendor defined event 0x%04x\n", 1495 device_xname(sc->sc_dev), event); 1496 else 1497 printf("%s: unknown event 0x%04x\n", 1498 device_xname(sc->sc_dev), event); 1499 #endif 1500 break; 1501 } 1502 } 1503 1504 pnpbios_sendmessage(PNP_CM_PNP_OS_INACTIVE); 1505 kthread_exit(0); 1506 } 1507 #endif /* PNPBIOSEVENTS */ 1508
Indexes created Wed Oct 29 12:09:47 GMT 2025