pnpbios.c revision 1.73
1 /* $NetBSD: pnpbios.c,v 1.73 2017/02/26 10:49:25 maya 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 1.73 2017/02/26 10:49:25 maya 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 ressource 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_NOWAIT); 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_NOWAIT); 397 if (buf == NULL) { 398 aprint_error_dev(sc->sc_dev, "unable to allocate node buffer\n"); 399 return; 400 } 401 402 /* 403 * Loop through the list of indices getting data and match/attaching 404 * each as appropriate. 405 * 406 * Unfortunately, some BIOSes seem to have fatal bugs getting the 407 * dynamic (i.e. currently active) configuration, for instance some 408 * Sony VAIO laptops, including the PCG-Z505HE. They don't have such a 409 * problem with that static (i.e. next boot time) configuration, 410 * however. The workaround is to get the static configuration for all 411 * indices, and only get dynamic configuration for devices where the 412 * match is positive. 413 * 414 * This seems to work conveniently as the indices that cause 415 * crashes (and it seems to vary from machine to machine) do not 416 * seem to be for devices that NetBSD's pnpbios supports. 417 */ 418 419 idx = 0; 420 for (i = 0; i < num && idx != 0xff; i++) { 421 DPRINTF(("%s: getting info for index %d\n", 422 device_xname(sc->sc_dev), idx)); 423 424 dynidx = idx; 425 426 res = pnpbios_getnode(PNP_CF_DEVCONF_STATIC, &idx, buf, size); 427 if (res) { 428 aprint_error_dev(sc->sc_dev, "index %d error %d " 429 "getting static configuration\n", idx, res); 430 continue; 431 } 432 dn = (struct pnpdevnode *)buf; 433 if (!pnpbios_attachnode(sc, dn->dn_handle, buf, dn->dn_size, 1)) { 434 DPRINTF(("%s handle %d: no match from static config\n", 435 device_xname(sc->sc_dev), dn->dn_handle)); 436 continue; 437 } 438 439 res = pnpbios_getnode(PNP_CF_DEVCONF_DYNAMIC, &dynidx, buf, size); 440 if (res) { 441 aprint_error_dev(sc->sc_dev, "index %d error %d " 442 "getting dynamic configuration\n", dynidx, res); 443 continue; 444 } 445 dn = (struct pnpdevnode *)buf; 446 if (!pnpbios_attachnode(sc, dn->dn_handle, buf, dn->dn_size, 0)) { 447 DPRINTF(("%s handle %d: no match from dynamic config\n", 448 device_xname(sc->sc_dev), dn->dn_handle)); 449 continue; 450 } 451 } 452 if (i != num) 453 aprint_error_dev(sc->sc_dev, "got only %d nodes\n", i); 454 if (idx != 0xff) 455 aprint_error_dev(sc->sc_dev, "last index %d\n", idx); 456 457 free(buf, M_DEVBUF); 458 } 459 460 #ifdef PNPBIOSEVENTS 461 static int 462 pnpbios_update_dock_status(struct pnpbios_softc *sc) 463 { 464 struct pnpdockinfo di; 465 const char *when, *style; 466 int res, odocked = sc->sc_docked; 467 468 res = pnpbios_getdockinfo(&di); 469 if (res == PNP_RC_SYSTEM_NOT_DOCKED) { 470 sc->sc_docked = 0; 471 if (odocked != sc->sc_docked) 472 printf("%s: not docked\n", device_xname(sc->sc_dev)); 473 } else if (res) { 474 EDPRINTF(("%s: dockinfo failed 0x%02x\n", 475 device_xname(sc->sc_dev), res)); 476 } else { 477 sc->sc_docked = 1; 478 if (odocked != sc->sc_docked) { 479 char idstr[8]; 480 pnpbios_id_to_string(di.di_id, idstr); 481 printf("%s: dock id %s", device_xname(sc->sc_dev), idstr); 482 if (pnpbiosverbose) { 483 if (di.di_serial != -1) 484 printf(", serial number %d", 485 di.di_serial); 486 } 487 switch (di.di_cap & PNP_DI_DOCK_STYLE_MASK) { 488 case PNP_DI_DOCK_STYLE_SUPRISE: 489 style = "surprise"; 490 break; 491 case PNP_DI_DOCK_STYLE_VCR: 492 style = "controlled"; 493 break; 494 default: 495 style = "<style unknown>"; 496 break; 497 } 498 switch (di.di_cap & PNP_DI_DOCK_WHEN_MASK) { 499 case PNP_DI_DOCK_WHEN_NO_POWER: 500 when = "cold"; 501 break; 502 case PNP_DI_DOCK_WHEN_SUSPENDED: 503 when = "warm"; 504 break; 505 case PNP_DI_DOCK_WHEN_RUNNING: 506 when = "hot"; 507 break; 508 case PNP_DI_DOCK_WHEN_RESERVED: 509 when = "<reserved>"; 510 break; 511 default: 512 when = "<dock type unknown>"; 513 break; 514 } 515 printf(", %s %s docking\n", style, when); 516 } 517 } 518 519 return (odocked); 520 } 521 #endif 522 523 static int 524 pnpbios_getnumnodes(int *nump, size_t *sizep) 525 { 526 int res; 527 short *help = (short *)(pnpbios_scratchbuf + PNPBIOS_BUFSIZE); 528 529 *--help = GSEL(GPNPBIOSDATA_SEL, SEL_KPL); 530 *--help = GSEL(GPNPBIOSSCRATCH_SEL, SEL_KPL); 531 *--help = 2; /* buffer offset for node size */ 532 *--help = GSEL(GPNPBIOSSCRATCH_SEL, SEL_KPL); 533 *--help = 0; /* buffer offset for numnodes */ 534 *--help = PNP_FC_GET_NUM_NODES; 535 536 res = pnpbioscall(((char *)help) - pnpbios_scratchbuf); 537 if (res) 538 return (res); 539 540 *nump = *(short *)(pnpbios_scratchbuf + 0); 541 *sizep = *(short *)(pnpbios_scratchbuf + 2); 542 return (0); 543 } 544 545 static int 546 pnpbios_getnode(int flags, int *idxp, uint8_t *buf, size_t len) 547 { 548 int res; 549 short *help = (short *)(pnpbios_scratchbuf + PNPBIOS_BUFSIZE); 550 551 *--help = GSEL(GPNPBIOSDATA_SEL, SEL_KPL); 552 *--help = flags; 553 *--help = GSEL(GPNPBIOSSCRATCH_SEL, SEL_KPL); 554 *--help = 2; /* buffer offset for node data */ 555 *--help = GSEL(GPNPBIOSSCRATCH_SEL, SEL_KPL); 556 *--help = 0; /* buffer offset for index in/out */ 557 *--help = PNP_FC_GET_DEVICE_NODE; 558 559 *(short *)(pnpbios_scratchbuf + 0) = *idxp; 560 561 res = pnpbioscall(((char *)help) - pnpbios_scratchbuf); 562 if (res) 563 return (res); 564 565 *idxp = *(short *)(pnpbios_scratchbuf + 0); 566 memcpy(buf, pnpbios_scratchbuf + 2, len); 567 return (0); 568 } 569 570 571 #if 0 572 /* XXX - pnpbios_setnode() is never called. */ 573 574 static int 575 pnpbios_setnode(int flags, int idx, const uint8_t *buf, size_t len) 576 { 577 short *help = (short *)(pnpbios_scratchbuf + PNPBIOS_BUFSIZE); 578 579 *--help = GSEL(GPNPBIOSDATA_SEL, SEL_KPL); 580 *--help = flags; 581 *--help = GSEL(GPNPBIOSSCRATCH_SEL, SEL_KPL); 582 *--help = 0; /* buffer offset for node data */ 583 *--help = idx; 584 *--help = PNP_FC_SET_DEVICE_NODE; 585 586 memcpy(pnpbios_scratchbuf, buf, len); 587 588 return (pnpbioscall(((void *)help) - pnpbios_scratchbuf)); 589 } 590 #endif /* 0 */ 591 592 #ifdef PNPBIOSEVENTS 593 static int 594 pnpbios_getevent(uint16_t *event) 595 { 596 int res; 597 short *help = (short *)(pnpbios_scratchbuf + PNPBIOS_BUFSIZE); 598 599 *--help = GSEL(GPNPBIOSDATA_SEL, SEL_KPL); 600 *--help = GSEL(GPNPBIOSSCRATCH_SEL, SEL_KPL); 601 *--help = 0; /* buffer offset for message data */ 602 *--help = PNP_FC_GET_EVENT; 603 604 res = pnpbioscall(((void *)help) - pnpbios_scratchbuf); 605 *event = pnpbios_scratchbuf[0] + (pnpbios_scratchbuf[1] << 8); 606 return (res); 607 } 608 609 static int 610 pnpbios_sendmessage(int msg) 611 { 612 short *help = (short *)(pnpbios_scratchbuf + PNPBIOS_BUFSIZE); 613 614 *--help = GSEL(GPNPBIOSDATA_SEL, SEL_KPL); 615 *--help = msg; 616 *--help = PNP_FC_SEND_MESSAGE; 617 618 return (pnpbioscall(((void *)help) - pnpbios_scratchbuf)); 619 } 620 621 static int 622 pnpbios_getdockinfo(struct pnpdockinfo *di) 623 { 624 int res; 625 short *help = (short *)(pnpbios_scratchbuf + PNPBIOS_BUFSIZE); 626 627 *--help = GSEL(GPNPBIOSDATA_SEL, SEL_KPL); 628 *--help = GSEL(GPNPBIOSSCRATCH_SEL, SEL_KPL); 629 *--help = 0; /* buffer offset for dock info */ 630 *--help = PNP_FC_GET_DOCK_INFO; 631 632 res = pnpbioscall(((void *)help) - pnpbios_scratchbuf); 633 memcpy(di, pnpbios_scratchbuf, sizeof(*di)); 634 return (res); 635 } 636 #endif /* PNPBIOSEVENTS */ 637 638 #if 0 639 /* XXX - pnpbios_getapmtable() is not called. */ 640 641 /* XXX we don't support more than PNPBIOS_BUFSIZE - (stacklen + 2) */ 642 static int 643 pnpbios_getapmtable(uint8_t *tab, size_t *len) 644 { 645 short *help = (short *)(pnpbios_scratchbuf + PNPBIOS_BUFSIZE); 646 size_t origlen, stacklen; 647 int res; 648 649 *--help = GSEL(GPNPBIOSDATA_SEL, SEL_KPL); 650 *--help = GSEL(GPNPBIOSSCRATCH_SEL, SEL_KPL); 651 *--help = 2; /* buffer offset for table */ 652 *--help = GSEL(GPNPBIOSSCRATCH_SEL, SEL_KPL); 653 *--help = 0; /* buffer offset for length */ 654 *--help = PNP_FC_GET_APM_TABLE; 655 656 origlen = *len; 657 stacklen = (void *)help - pnpbios_scratchbuf; 658 if (origlen > PNPBIOS_BUFSIZE - stacklen - 2) 659 origlen = PNPBIOS_BUFSIZE - stacklen - 2; 660 *(uint16_t *)(pnpbios_scratchbuf) = origlen; 661 662 res = pnpbioscall(((void *)help) - pnpbios_scratchbuf); 663 *len = *(uint16_t *)pnpbios_scratchbuf; 664 if (res) 665 return (res); 666 if (origlen && *len > origlen) { 667 printf("pnpbios: returned apm table exceed requested size\n"); 668 return (PNP_RC_BUFFER_TOO_SMALL); 669 } 670 memcpy(tab, pnpbios_scratchbuf + 2, *len); 671 return (0); 672 } 673 #endif 674 675 static void 676 pnpbios_id_to_string(uint32_t pnpid, char *s) 677 { 678 uint8_t *id; 679 680 id = (uint8_t *)&pnpid; 681 *s++ = 'A' + (id[0] >> 2) - 1; 682 *s++ = 'A' + ((id[0] & 3) << 3) + (id[1] >> 5) - 1; 683 *s++ = 'A' + (id[1] & 0x1f) - 1; 684 *s++ = HEXDIGITS[id[2] >> 4]; 685 *s++ = HEXDIGITS[id[2] & 0x0f]; 686 *s++ = HEXDIGITS[id[3] >> 4]; 687 *s++ = HEXDIGITS[id[3] & 0x0f]; 688 *s = '\0'; 689 } 690 691 static void 692 pnpbios_printres(struct pnpresources *r) 693 { 694 struct pnp_mem *mem; 695 struct pnp_io *io; 696 struct pnp_irq *irq; 697 struct pnp_dma *dma; 698 int p = 0; 699 700 mem = SIMPLEQ_FIRST(&r->mem); 701 if (mem) { 702 aprint_normal("mem"); 703 do { 704 aprint_normal(" %x", mem->minbase); 705 if (mem->len > 1) 706 aprint_normal("-%x", 707 mem->minbase + mem->len - 1); 708 } while ((mem = SIMPLEQ_NEXT(mem, next))); 709 p++; 710 } 711 io = SIMPLEQ_FIRST(&r->io); 712 if (io) { 713 if (p++) 714 aprint_normal(", "); 715 aprint_normal("io"); 716 do { 717 aprint_normal(" %x", io->minbase); 718 if (io->len > 1) 719 aprint_normal("-%x", 720 io->minbase + io->len - 1); 721 } while ((io = SIMPLEQ_NEXT(io, next))); 722 } 723 irq = SIMPLEQ_FIRST(&r->irq); 724 if (irq) { 725 if (p++) 726 aprint_normal(", "); 727 aprint_normal("irq"); 728 do { 729 aprint_normal(" %d", ffs(irq->mask) - 1); 730 } while ((irq = SIMPLEQ_NEXT(irq, next))); 731 } 732 dma = SIMPLEQ_FIRST(&r->dma); 733 if (dma) { 734 if (p) 735 aprint_normal(", "); 736 aprint_normal("DMA"); 737 do { 738 aprint_normal(" %d", ffs(dma->mask) - 1); 739 } while ((dma = SIMPLEQ_NEXT(dma, next))); 740 } 741 } 742 743 static int 744 pnpbios_print(void *aux, const char *pnp) 745 { 746 struct pnpbiosdev_attach_args *aa = aux; 747 748 if (pnp) 749 return (QUIET); 750 751 aprint_normal(" index %d (%s", aa->idx, aa->primid); 752 if (aa->resc->longname) 753 aprint_normal(", %s", aa->resc->longname); 754 if (aa->idstr != aa->primid) 755 aprint_normal(", attached as %s", aa->idstr); 756 aprint_normal(")"); 757 758 return (0); 759 } 760 761 void 762 pnpbios_print_devres(device_t dev, struct pnpbiosdev_attach_args *aa) 763 { 764 765 aprint_normal_dev(dev, ""); 766 pnpbios_printres(aa->resc); 767 aprint_normal("\n"); 768 } 769 770 static int 771 pnpbios_attachchild(struct pnpbios_softc *sc, 772 struct pnpbiosdev_attach_args *aa, int matchonly) 773 { 774 int locs[PNPBIOSCF_NLOCS]; 775 776 locs[PNPBIOSCF_INDEX] = aa->idx; 777 778 if (matchonly) 779 return (config_search_loc(config_stdsubmatch, sc->sc_dev, 780 "pnpbios", locs, aa) != NULL); 781 else 782 return (config_found_sm_loc(sc->sc_dev, "pnpbios", 783 locs, aa, pnpbios_print, config_stdsubmatch) 784 != NULL); 785 } 786 787 static int 788 pnpbios_attachnode(struct pnpbios_softc *sc, int idx, const uint8_t *buf, 789 size_t len, int matchonly) 790 { 791 const struct pnpdevnode *dn; 792 const uint8_t *p; 793 char idstr[8]; 794 struct pnpresources r, s; 795 struct pnpbiosdev_attach_args aa; 796 struct pnp_compatid *compatid; 797 int res, i; 798 799 dn = (const struct pnpdevnode *)buf; 800 pnpbios_id_to_string(dn->dn_product, idstr); 801 p = (const u_char *)(dn + 1); 802 803 DPRINTF(("%s (%s): type 0x%02x subtype " 804 "0x%02x dpi 0x%02x attr 0x%04x:\n", 805 idstr, matchonly ? "static" : "dynamic", dn->dn_type, 806 dn->dn_subtype, dn->dn_dpi, dn->dn_attr)); 807 DPRINTF(("%s: allocated config scan:\n", idstr)); 808 res = pnp_scan(&p, len - 12, &r, 0); 809 if (res < 0) { 810 aprint_error("error in config data\n"); 811 goto dump; 812 } 813 814 /* 815 * the following is consistency check only for now 816 */ 817 DPRINTF(("\tpossible config scan:\n")); 818 res = pnp_scan(&p, len - (p - buf), &s, 0); 819 if (res < 0) { 820 aprint_error("error in possible configuration\n"); 821 goto dump; 822 } 823 824 DPRINTF(("\tcompat id scan:\n")); 825 res = pnp_scan(&p, len - (p - buf), &s, 0); 826 if (res < 0) { 827 aprint_error("error in compatible ID\n"); 828 goto dump; 829 } 830 831 if (p != buf + len) { 832 aprint_error_dev(sc->sc_dev, "length mismatch in node %d:" 833 " used %d of %d Bytes\n", 834 idx, p - buf, len); 835 if (p > buf + len) { 836 /* XXX shouldn't happen - pnp_scan should catch it */ 837 goto dump; 838 } 839 /* Crappy BIOS: Buffer is not fully used. Be generous. */ 840 } 841 842 if (r.nummem + r.numio + r.numirq + r.numdma == 0) { 843 if (pnpbiosverbose) { 844 aprint_normal("%s", idstr); 845 if (r.longname) 846 aprint_normal(", %s", r.longname); 847 compatid = s.compatids; 848 while (compatid) { 849 aprint_normal(", %s", compatid->idstr); 850 compatid = compatid->next; 851 } 852 aprint_normal(" at %s index %d disabled\n", 853 device_xname(sc->sc_dev), idx); 854 } 855 return 0; 856 } 857 858 aa.pbt = 0; /* XXX placeholder */ 859 aa.idx = idx; 860 aa.resc = &r; 861 aa.ic = sc->sc_ic; 862 aa.primid = idstr; 863 864 /* first try the specific device ID */ 865 aa.idstr = idstr; 866 if (pnpbios_attachchild(sc, &aa, matchonly)) 867 return -1; 868 869 /* if no driver was found, try compatible IDs */ 870 compatid = s.compatids; 871 while (compatid) { 872 aa.idstr = compatid->idstr; 873 if (pnpbios_attachchild(sc, &aa, matchonly)) 874 return -1; 875 compatid = compatid->next; 876 } 877 878 if (pnpbiosverbose) { 879 aprint_normal("%s", idstr); 880 if (r.longname) 881 aprint_normal(", %s", r.longname); 882 compatid = s.compatids; 883 while (compatid) { 884 aprint_normal(", %s", compatid->idstr); 885 compatid = compatid->next; 886 } 887 aprint_normal(" ("); 888 pnpbios_printres(&r); 889 aprint_normal(") at %s index %d ignored\n", 890 device_xname(sc->sc_dev), idx); 891 } 892 893 return 0; 894 895 /* XXX should free resource lists */ 896 897 dump: 898 i = 0; 899 #ifdef PNPBIOSDEBUG 900 /* print some useful info */ 901 if (len >= sizeof(*dn)) { 902 aprint_normal("%s idx %d size %d type 0x%x:0x%x:0x%x attr 0x%x\n", 903 idstr, dn->dn_handle, dn->dn_size, dn->dn_type, 904 dn->dn_subtype, dn->dn_dpi, dn->dn_attr); 905 i += sizeof(*dn); 906 } 907 #endif 908 for (; i < len; i++) 909 aprint_normal(" %02x", buf[i]); 910 aprint_normal("\n"); 911 return 0; 912 } 913 914 static int 915 pnp_scan(const uint8_t **bufp, size_t maxlen, 916 struct pnpresources *r, int in_depends) 917 { 918 const void *start; 919 const uint8_t *p; 920 struct pnp_mem *mem; 921 int tag, type, len; 922 char *idstr; 923 int i; 924 925 p = *bufp; 926 927 memset(r, 0, sizeof(*r)); 928 SIMPLEQ_INIT(&r->mem); 929 SIMPLEQ_INIT(&r->io); 930 SIMPLEQ_INIT(&r->irq); 931 SIMPLEQ_INIT(&r->dma); 932 933 for (;;) { 934 if (p >= *bufp + maxlen) { 935 aprint_normal("pnp_scanresources: end of buffer\n"); 936 return (-1); 937 } 938 start = p; 939 tag = *p; 940 if (tag & ISAPNP_LARGE_TAG) { 941 len = *(const uint16_t *)(p + 1); 942 p += sizeof(struct pnplargeres) + len; 943 944 switch (tag) { 945 case ISAPNP_TAG_MEM_RANGE_DESC: { 946 const struct pnpmem16rangeres *res = start; 947 if (len != sizeof(*res) - 3) { 948 aprint_normal("pnp_scan: bad mem desc\n"); 949 return (-1); 950 } 951 952 mem = malloc(sizeof(struct pnp_mem), 953 M_DEVBUF, M_WAITOK); 954 mem->flags = res->r_flags; 955 mem->minbase = res->r_minbase << 8; 956 mem->maxbase = res->r_maxbase << 8; 957 mem->align = res->r_align; 958 if (mem->align == 0) 959 mem->align = 0x10000; 960 mem->len = res->r_len << 8; 961 DPRINTF(("\ttag memrange ")); 962 goto gotmem; 963 } 964 case ISAPNP_TAG_ANSI_IDENT_STRING: { 965 const struct pnpansiidentres *res = start; 966 if (in_depends) 967 aprint_normal("ID in dep?\n"); 968 idstr = malloc(len + 1, M_DEVBUF, M_NOWAIT); 969 for (i = 0; i < len; i++) 970 idstr[i] = res->r_id[i]; 971 idstr[len] = '\0'; 972 973 DPRINTF(("\ttag ansiident %s\n", idstr)); 974 975 if (idstr[0] == '\0') { 976 /* disabled device */ 977 free(idstr, M_DEVBUF); 978 break; 979 } 980 r->longname = idstr; 981 break; 982 } 983 case ISAPNP_TAG_MEM32_RANGE_DESC: { 984 const struct pnpmem32rangeres *res = start; 985 if (len != sizeof(*res) - 3) { 986 aprint_normal("pnp_scan: bad mem32 desc\n"); 987 return (-1); 988 } 989 990 mem = malloc(sizeof(struct pnp_mem), 991 M_DEVBUF, M_WAITOK); 992 mem->flags = res->r_flags; 993 mem->minbase = res->r_minbase; 994 mem->maxbase = res->r_maxbase; 995 mem->align = res->r_align; 996 mem->len = res->r_len; 997 DPRINTF(("\ttag mem32range ")); 998 goto gotmem; 999 } 1000 case ISAPNP_TAG_FIXED_MEM32_RANGE_DESC: { 1001 const struct pnpfixedmem32rangeres *res = start; 1002 if (len != sizeof(*res) - 3) { 1003 aprint_normal("pnp_scan: bad mem32 desc\n"); 1004 return (-1); 1005 } 1006 1007 mem = malloc(sizeof(struct pnp_mem), 1008 M_DEVBUF, M_WAITOK); 1009 mem->flags = res->r_flags; 1010 mem->minbase = res->r_base; 1011 mem->maxbase = mem->minbase; 1012 mem->align = 0; 1013 mem->len = res->r_len; 1014 DPRINTF(("\ttag fixedmem32range ")); 1015 gotmem: 1016 if (mem->len == 0) { /* disabled */ 1017 DPRINTF(("zeroed\n")); 1018 free(mem, M_DEVBUF); 1019 break; 1020 } 1021 SIMPLEQ_INSERT_TAIL(&r->mem, mem, next); 1022 r->nummem++; 1023 1024 DPRINTF(("flags %02x min %08x max %08x " 1025 "align %08x len %08x\n", mem->flags, 1026 mem->minbase, mem->maxbase, mem->align, 1027 mem->len)); 1028 1029 break; 1030 } 1031 case ISAPNP_TAG_UNICODE_IDENT_STRING: 1032 case ISAPNP_TAG_VENDOR_DEFINED: 1033 default: 1034 #ifdef PNPBIOSDEBUG 1035 pnp_debugdump(r, start, len); 1036 #endif 1037 break; 1038 } 1039 } else { 1040 type = (tag >> 3) & 0x0f; 1041 len = tag & 0x07; 1042 p += 1 + len; 1043 1044 if (type == 0 || 1045 len < smallrescs[type - 1].minlen || 1046 len > smallrescs[type - 1].maxlen) { 1047 aprint_normal("pnp_scan: bad small resource\n"); 1048 return (-1); 1049 } 1050 if (type == ISAPNP_TAG_END) { 1051 #ifdef PNPBIOSDEBUG 1052 const struct pnpendres *res = start; 1053 #endif 1054 if (in_depends) { 1055 /* 1056 * this seems to occur and is 1057 * an optimization to not require 1058 * the end dep in a depend 1059 * that ends the section 1060 */ 1061 p -= 1 + len; 1062 } 1063 DPRINTF(("\ttag end cksum %02x\n", 1064 res->r_cksum)); 1065 break; 1066 } 1067 if (type == ISAPNP_TAG_DEP_START) { 1068 #ifdef PNPBIOSDEBUG 1069 const struct pnpdepstartres *res = start; 1070 #endif 1071 struct pnpresources *new, *last; 1072 int rv; 1073 1074 DPRINTF(("\ttag startdep flags %02x\n", 1075 len ? res->r_pri : ISAPNP_DEP_ACCEPTABLE)); 1076 1077 if (r->dependent_link) { 1078 aprint_normal("second dep?\n"); 1079 return (-1); 1080 } 1081 /* XXX not sure about this */ 1082 if (in_depends) { 1083 *bufp = p; 1084 return (1); 1085 } 1086 last = r; 1087 do { 1088 new = malloc(sizeof(*new), 1089 M_DEVBUF, M_NOWAIT); 1090 1091 rv = pnp_scan(&p, maxlen - (p - *bufp), 1092 new, 1); 1093 if (rv < 0) { 1094 aprint_normal("error in" 1095 " dependent function\n"); 1096 free(new, M_DEVBUF); 1097 return (-1); 1098 } 1099 last->dependent_link = new; 1100 last = new; 1101 } while (rv > 0); 1102 continue; 1103 } 1104 if (type == ISAPNP_TAG_DEP_END) { 1105 DPRINTF(("\ttag enddep\n")); 1106 if (!in_depends) { 1107 aprint_normal("tag %d end dep?\n", tag); 1108 return (-1); 1109 } 1110 break; 1111 } 1112 if (!smallrescs[type - 1].handler) { 1113 #ifdef PNPBIOSDEBUG 1114 pnp_debugdump(r, start, len); 1115 #endif 1116 } else if ( 1117 (*smallrescs[type - 1].handler)(r, start, len)) 1118 return (-1); 1119 } 1120 } 1121 *bufp = p; 1122 return (0); 1123 } 1124 1125 static int 1126 pnp_newirq(struct pnpresources *r, const void *vres, size_t len) 1127 { 1128 const struct pnpirqres *res; 1129 struct pnp_irq *irq; 1130 1131 res = vres; 1132 if (res->r_mask == 0) { /* disabled */ 1133 DPRINTF(("\ttag irq zeroed\n")); 1134 return (0); 1135 } 1136 irq = malloc(sizeof(struct pnp_irq), M_DEVBUF, M_NOWAIT); 1137 irq->mask = res->r_mask; 1138 if (len > 2) 1139 irq->flags = res->r_info; 1140 else 1141 irq->flags = 0x01; 1142 SIMPLEQ_INSERT_TAIL(&r->irq, irq, next); 1143 r->numirq++; 1144 1145 DPRINTF(("\ttag irq flags %02x mask %04x\n", irq->flags,irq->mask)); 1146 1147 return (0); 1148 } 1149 1150 static int 1151 pnp_newdma(struct pnpresources *r, const void *vres, size_t len) 1152 { 1153 const struct pnpdmares *res; 1154 struct pnp_dma *dma; 1155 1156 res = vres; 1157 if (res->r_mask == 0) { /* disabled */ 1158 DPRINTF(("\ttag DMA zeroed\n")); 1159 return (0); 1160 } 1161 dma = malloc(sizeof(struct pnp_dma), M_DEVBUF, M_NOWAIT); 1162 dma->mask = res->r_mask; 1163 dma->flags = res->r_flags; 1164 SIMPLEQ_INSERT_TAIL(&r->dma, dma, next); 1165 r->numdma++; 1166 1167 DPRINTF(("\ttag DMA flags %02x mask %02x\n", dma->flags,dma->mask)); 1168 1169 return (0); 1170 } 1171 1172 static int 1173 pnp_newioport(struct pnpresources *r, const void *vres, size_t len) 1174 { 1175 const struct pnpportres *res; 1176 struct pnp_io *io; 1177 1178 res = vres; 1179 if (res->r_len == 0) { /* disabled */ 1180 DPRINTF(("\ttag io zeroed\n")); 1181 return (0); 1182 } 1183 io = malloc(sizeof(struct pnp_io), M_DEVBUF, M_NOWAIT); 1184 io->flags = res->r_flags; 1185 io->minbase = res->r_minbase; 1186 io->maxbase = res->r_maxbase; 1187 io->align = res->r_align; 1188 io->len = res->r_len; 1189 SIMPLEQ_INSERT_TAIL(&r->io, io, next); 1190 r->numio++; 1191 1192 DPRINTF(("\ttag io flags %02x min %04x max %04x align " 1193 "0x%02x len 0x%02x\n", io->flags, io->minbase, io->maxbase, 1194 io->align, io->len)); 1195 1196 return (0); 1197 } 1198 1199 static int 1200 pnp_newfixedioport(struct pnpresources *r, const void *vres, 1201 size_t len) 1202 { 1203 const struct pnpfixedportres *res; 1204 struct pnp_io *io; 1205 1206 res = vres; 1207 if (res->r_len == 0) { /* disabled */ 1208 DPRINTF(("\ttag fixedio zeroed\n")); 1209 return (0); 1210 } 1211 io = malloc(sizeof(struct pnp_io), M_DEVBUF, M_NOWAIT); 1212 io->flags = 1; /* 10 bit decoding */ 1213 io->minbase = io->maxbase = res->r_base; 1214 io->align = 1; 1215 io->len = res->r_len; 1216 SIMPLEQ_INSERT_TAIL(&r->io, io, next); 1217 r->numio++; 1218 1219 DPRINTF(("\ttag fixedio flags %02x base %04x align %02x len %02x\n", 1220 io->flags, io->minbase, io->align, io->len)); 1221 1222 return (0); 1223 } 1224 1225 static int 1226 pnp_compatid(struct pnpresources *r, const void *vres, size_t len) 1227 { 1228 const struct pnpcompatres *res; 1229 struct pnp_compatid *id; 1230 1231 res = vres; 1232 id = malloc(sizeof(*id), M_DEVBUF, M_NOWAIT); 1233 pnpbios_id_to_string(res->r_id, id->idstr); 1234 id->next = r->compatids; 1235 r->compatids = id; 1236 1237 DPRINTF(("\ttag compatid %s\n", id->idstr)); 1238 1239 return (0); 1240 } 1241 1242 #ifdef PNPBIOSDEBUG 1243 static int 1244 pnp_debugdump(struct pnpresources *r, const void *vres, size_t len) 1245 { 1246 const uint8_t *res = vres; 1247 int type, i; 1248 1249 if (res[0] & ISAPNP_LARGE_TAG) { 1250 type = res[0] & 0x7f; 1251 aprint_normal("\tTAG %02x len %04x %s", 1252 type, len, len ? "data" : ""); 1253 i = 3; 1254 } else { 1255 type = (res[0] >> 3) & 0x0f; 1256 aprint_normal("\tTAG %02x len %02x %s", 1257 type, len, len ? "data" : ""); 1258 i = 1; 1259 } 1260 for (; i < len; i++) 1261 aprint_normal(" %02x", res[i]); 1262 aprint_normal("\n"); 1263 1264 return (0); 1265 } 1266 #endif 1267 1268 int 1269 pnpbios_io_map(pnpbios_tag_t pbt, struct pnpresources *resc, 1270 int idx, bus_space_tag_t *tagp, bus_space_handle_t *hdlp) 1271 { 1272 struct pnp_io *io; 1273 1274 if (idx >= resc->numio) 1275 return (EINVAL); 1276 1277 io = SIMPLEQ_FIRST(&resc->io); 1278 while (idx--) 1279 io = SIMPLEQ_NEXT(io, next); 1280 1281 *tagp = x86_bus_space_io; 1282 return (bus_space_map(x86_bus_space_io, io->minbase, io->len, 1283 0, hdlp)); 1284 } 1285 1286 void 1287 pnpbios_io_unmap(pnpbios_tag_t pbt, struct pnpresources *resc, 1288 int idx, bus_space_tag_t tag, bus_space_handle_t hdl) 1289 { 1290 struct pnp_io *io; 1291 1292 if (idx >= resc->numio) 1293 return; 1294 1295 io = SIMPLEQ_FIRST(&resc->io); 1296 while (idx--) 1297 io = SIMPLEQ_NEXT(io, next); 1298 1299 bus_space_unmap(tag, hdl, io->len); 1300 } 1301 1302 int 1303 pnpbios_getiobase(pnpbios_tag_t pbt, struct pnpresources *resc, 1304 int idx, bus_space_tag_t *tagp, int *basep) 1305 { 1306 struct pnp_io *io; 1307 1308 if (idx >= resc->numio) 1309 return (EINVAL); 1310 1311 io = SIMPLEQ_FIRST(&resc->io); 1312 while (idx--) 1313 io = SIMPLEQ_NEXT(io, next); 1314 1315 if (tagp) 1316 *tagp = x86_bus_space_io; 1317 if (basep) 1318 *basep = io->minbase; 1319 return (0); 1320 } 1321 1322 int 1323 pnpbios_getiosize(pnpbios_tag_t pbt, struct pnpresources *resc, 1324 int idx, int *sizep) 1325 { 1326 struct pnp_io *io; 1327 1328 if (idx >= resc->numio) 1329 return (EINVAL); 1330 1331 io = SIMPLEQ_FIRST(&resc->io); 1332 while (idx--) 1333 io = SIMPLEQ_NEXT(io, next); 1334 if (sizep) 1335 *sizep = io->len; 1336 return (0); 1337 } 1338 1339 void * 1340 pnpbios_intr_establish(pnpbios_tag_t pbt, struct pnpresources *resc, 1341 int idx, int level, int (*fcn)(void *), void *arg) 1342 { 1343 struct pnp_irq *irq; 1344 int irqnum, type; 1345 1346 if (idx >= resc->numirq) 1347 return (0); 1348 1349 irq = SIMPLEQ_FIRST(&resc->irq); 1350 while (idx--) 1351 irq = SIMPLEQ_NEXT(irq, next); 1352 1353 irqnum = ffs(irq->mask) - 1; 1354 type = (irq->flags & 0x0c) ? IST_LEVEL : IST_EDGE; 1355 1356 return (isa_intr_establish(0, irqnum, type, level, fcn, arg)); 1357 } 1358 1359 int 1360 pnpbios_getirqnum(pnpbios_tag_t pbt, struct pnpresources *resc, 1361 int idx, int *irqp, int *istp) 1362 { 1363 struct pnp_irq *irq; 1364 1365 if (idx >= resc->numirq) 1366 return (EINVAL); 1367 1368 irq = SIMPLEQ_FIRST(&resc->irq); 1369 while (idx--) 1370 irq = SIMPLEQ_NEXT(irq, next); 1371 1372 if (irqp != NULL) 1373 *irqp = ffs(irq->mask) - 1; 1374 if (istp != NULL) 1375 *istp = (irq->flags & 0x0c) ? IST_LEVEL : IST_EDGE; 1376 return (0); 1377 } 1378 1379 int 1380 pnpbios_getdmachan(pnpbios_tag_t pbt, struct pnpresources *resc, 1381 int idx, int *chanp) 1382 { 1383 struct pnp_dma *dma; 1384 1385 if (idx >= resc->numdma) 1386 return (EINVAL); 1387 1388 dma = SIMPLEQ_FIRST(&resc->dma); 1389 while (idx--) 1390 dma = SIMPLEQ_NEXT(dma, next); 1391 1392 *chanp = ffs(dma->mask) - 1; 1393 return (0); 1394 } 1395 1396 #ifdef PNPBIOSEVENTS 1397 static void 1398 pnpbios_event_thread(void *arg) 1399 { 1400 struct pnpbios_softc *sc; 1401 uint16_t event; 1402 u_int evflag; 1403 int rv, poll; 1404 1405 sc = arg; 1406 if ((sc->sc_control & PNP_IC_CONTORL_EVENT_MASK) 1407 != PNP_IC_CONTROL_EVENT_POLL) 1408 poll = 0; 1409 else { 1410 poll = hz; 1411 rv = pnpbios_sendmessage(PNP_CM_PNP_OS_ACTIVE); 1412 EDPRINTF(("pnpbios: os active returns 0x%02x\n", rv)); 1413 } 1414 1415 config_pending_decr(sc->sc_dev); 1416 1417 goto start; 1418 while (sc->sc_threadrun) { 1419 /* maybe we have an event */ 1420 if (!poll) 1421 (void)tsleep(pnpbios_event_thread, PWAIT, 1422 "pnpbiosevent", 0); 1423 else if (((evflag = *sc->sc_evaddr) & 0x01) == 0) { 1424 if (evflag) 1425 EDPRINTF(("pnpbios: evflags 0x%02x\n", evflag)); 1426 (void)tsleep(pnpbios_event_thread, PWAIT, 1427 "pnpbiosevent", poll); 1428 continue; 1429 } else { 1430 EDPRINTF(("pnpbios: evflags 0x%02x\n", evflag)); 1431 } 1432 start: 1433 if ((rv = pnpbios_getevent(&event))) { 1434 EDPRINTF(("pnpbios: getevent rc: 0x%02x\n", rv)); 1435 #ifdef DIAGNOSTIC 1436 if (rv != PNP_RC_EVENTS_NOT_PENDING) 1437 printf("%s: getevent failed: %d\n", 1438 device_xname(sc->sc_dev), rv); 1439 #endif 1440 continue; 1441 } 1442 switch (event) { 1443 case PNP_EID_ABOUT_TO_CHANGE_CONFIG: 1444 EDPRINTF(("pnpbios: about to change event\n")); 1445 /* 1446 * The system is about to be docked or undocked. 1447 * Acknowledge the event, so that the procedure 1448 * can continue. 1449 * XXX When should we ever send an ABORT? 1450 */ 1451 pnpbios_sendmessage(PNP_RM_OK); 1452 break; 1453 case PNP_EID_DOCK_CHANGED: 1454 { 1455 int odocked; 1456 1457 EDPRINTF(("pnpbios: dock changed event\n")); 1458 1459 odocked = pnpbios_update_dock_status(sc); 1460 if (odocked == sc->sc_docked) 1461 break; 1462 switch (sc->sc_docked) { 1463 case 0: 1464 /* We have been undocked. */ 1465 /* XXX detach devices XXX */ 1466 break; 1467 1468 case 1: 1469 /* We have been docked. */ 1470 /* XXX attach devices XXX */ 1471 break; 1472 1473 default: 1474 /* getdockinfo failed! */ 1475 printf("%s: dock changed event, but unable " 1476 "to get dock info; event ignored\n", 1477 device_xname(sc->sc_dev)); 1478 } 1479 break; 1480 } 1481 case PNP_EID_SYSTEM_DEVICE_CHANGED: 1482 EDPRINTF(("pnpbios: system device changed event\n")); 1483 break; 1484 case PNP_EID_CONFIG_CHANGE_FAILED: 1485 EDPRINTF(("pnpbios: config changed event\n")); 1486 break; 1487 case PNP_EID_UNKNOWN_SYSTEM_EVENT: 1488 #ifdef DIAGNOSTIC 1489 printf("%s: \"unknown system event\"\n", 1490 device_xname(sc->sc_dev)); 1491 #endif 1492 break; 1493 default: 1494 #ifdef DIAGNOSTIC 1495 if (event & PNP_EID_OEM_DEFINED_BIT) 1496 printf("%s: vendor defined event 0x%04x\n", 1497 device_xname(sc->sc_dev), event); 1498 else 1499 printf("%s: unknown event 0x%04x\n", 1500 device_xname(sc->sc_dev), event); 1501 #endif 1502 break; 1503 } 1504 } 1505 1506 pnpbios_sendmessage(PNP_CM_PNP_OS_INACTIVE); 1507 kthread_exit(0); 1508 } 1509 #endif /* PNPBIOSEVENTS */ 1510
Indexes created Tue Sep 30 11:09:46 GMT 2025