1 /*- 2 * Copyright (c) 2006 Marcel Moolenaar 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 #include <sys/kernel.h> 33 #include <sys/bus.h> 34 #include <sys/conf.h> 35 #include <sys/malloc.h> 36 #include <sys/mutex.h> 37 #include <sys/sysctl.h> 38 39 #include <machine/bus.h> 40 #include <machine/resource.h> 41 #include <sys/rman.h> 42 43 #include <dev/pci/pcireg.h> 44 #include <dev/pci/pcivar.h> 45 46 #include <dev/puc/puc_bus.h> 47 #include <dev/puc/puc_cfg.h> 48 #include <dev/puc/puc_bfe.h> 49 50 #define PUC_ISRCCNT 5 51 52 struct puc_port { 53 struct puc_bar *p_bar; 54 struct resource *p_rres; 55 struct resource *p_ires; 56 device_t p_dev; 57 int p_nr; 58 int p_type; 59 int p_rclk; 60 61 int p_hasintr:1; 62 63 serdev_intr_t *p_ihsrc[PUC_ISRCCNT]; 64 void *p_iharg; 65 66 int p_ipend; 67 }; 68 69 devclass_t puc_devclass; 70 const char puc_driver_name[] = "puc"; 71 72 static MALLOC_DEFINE(M_PUC, "PUC", "PUC driver"); 73 74 SYSCTL_NODE(_hw, OID_AUTO, puc, CTLFLAG_RD, 0, "puc(9) driver configuration"); 75 76 struct puc_bar * 77 puc_get_bar(struct puc_softc *sc, int rid) 78 { 79 struct puc_bar *bar; 80 struct rman *rm; 81 rman_res_t end, start; 82 int error, i; 83 84 /* Find the BAR entry with the given RID. */ 85 i = 0; 86 while (i < PUC_PCI_BARS && sc->sc_bar[i].b_rid != rid) 87 i++; 88 if (i < PUC_PCI_BARS) 89 return (&sc->sc_bar[i]); 90 91 /* Not found. If we're looking for an unused entry, return NULL. */ 92 if (rid == -1) 93 return (NULL); 94 95 /* Get an unused entry for us to fill. */ 96 bar = puc_get_bar(sc, -1); 97 if (bar == NULL) 98 return (NULL); 99 bar->b_rid = rid; 100 bar->b_type = SYS_RES_IOPORT; 101 bar->b_res = bus_alloc_resource_any(sc->sc_dev, bar->b_type, 102 &bar->b_rid, RF_ACTIVE); 103 if (bar->b_res == NULL) { 104 bar->b_rid = rid; 105 bar->b_type = SYS_RES_MEMORY; 106 bar->b_res = bus_alloc_resource_any(sc->sc_dev, bar->b_type, 107 &bar->b_rid, RF_ACTIVE); 108 if (bar->b_res == NULL) { 109 bar->b_rid = -1; 110 return (NULL); 111 } 112 } 113 114 /* Update our managed space. */ 115 rm = (bar->b_type == SYS_RES_IOPORT) ? &sc->sc_ioport : &sc->sc_iomem; 116 start = rman_get_start(bar->b_res); 117 end = rman_get_end(bar->b_res); 118 error = rman_manage_region(rm, start, end); 119 if (error) { 120 bus_release_resource(sc->sc_dev, bar->b_type, bar->b_rid, 121 bar->b_res); 122 bar->b_res = NULL; 123 bar->b_rid = -1; 124 bar = NULL; 125 } 126 127 return (bar); 128 } 129 130 static int 131 puc_intr(void *arg) 132 { 133 struct puc_port *port; 134 struct puc_softc *sc = arg; 135 u_long ds, dev, devs; 136 int i, idx, ipend, isrc, nints; 137 uint8_t ilr; 138 139 nints = 0; 140 while (1) { 141 /* 142 * Obtain the set of devices with pending interrupts. 143 */ 144 devs = sc->sc_serdevs; 145 if (sc->sc_ilr == PUC_ILR_DIGI) { 146 idx = 0; 147 while (devs & (0xfful << idx)) { 148 ilr = ~bus_read_1(sc->sc_port[idx].p_rres, 7); 149 devs &= ~0ul ^ ((u_long)ilr << idx); 150 idx += 8; 151 } 152 } else if (sc->sc_ilr == PUC_ILR_QUATECH) { 153 /* 154 * Don't trust the value if it's the same as the option 155 * register. It may mean that the ILR is not active and 156 * we're reading the option register instead. This may 157 * lead to false positives on 8-port boards. 158 */ 159 ilr = bus_read_1(sc->sc_port[0].p_rres, 7); 160 if (ilr != (sc->sc_cfg_data & 0xff)) 161 devs &= (u_long)ilr; 162 } 163 if (devs == 0UL) 164 break; 165 166 /* 167 * Obtain the set of interrupt sources from those devices 168 * that have pending interrupts. 169 */ 170 ipend = 0; 171 idx = 0, dev = 1UL; 172 ds = devs; 173 while (ds != 0UL) { 174 while ((ds & dev) == 0UL) 175 idx++, dev <<= 1; 176 ds &= ~dev; 177 port = &sc->sc_port[idx]; 178 port->p_ipend = SERDEV_IPEND(port->p_dev); 179 ipend |= port->p_ipend; 180 } 181 if (ipend == 0) 182 break; 183 184 i = 0, isrc = SER_INT_OVERRUN; 185 while (ipend) { 186 while (i < PUC_ISRCCNT && !(ipend & isrc)) 187 i++, isrc <<= 1; 188 KASSERT(i < PUC_ISRCCNT, ("%s", __func__)); 189 ipend &= ~isrc; 190 idx = 0, dev = 1UL; 191 ds = devs; 192 while (ds != 0UL) { 193 while ((ds & dev) == 0UL) 194 idx++, dev <<= 1; 195 ds &= ~dev; 196 port = &sc->sc_port[idx]; 197 if (!(port->p_ipend & isrc)) 198 continue; 199 if (port->p_ihsrc[i] != NULL) 200 (*port->p_ihsrc[i])(port->p_iharg); 201 nints++; 202 } 203 } 204 } 205 206 return ((nints > 0) ? FILTER_HANDLED : FILTER_STRAY); 207 } 208 209 int 210 puc_bfe_attach(device_t dev) 211 { 212 char buffer[64]; 213 struct puc_bar *bar; 214 struct puc_port *port; 215 struct puc_softc *sc; 216 struct rman *rm; 217 intptr_t res; 218 bus_addr_t ofs, start; 219 bus_size_t size; 220 bus_space_handle_t bsh; 221 bus_space_tag_t bst; 222 int error, idx; 223 224 sc = device_get_softc(dev); 225 226 for (idx = 0; idx < PUC_PCI_BARS; idx++) 227 sc->sc_bar[idx].b_rid = -1; 228 229 do { 230 sc->sc_ioport.rm_type = RMAN_ARRAY; 231 error = rman_init(&sc->sc_ioport); 232 if (!error) { 233 sc->sc_iomem.rm_type = RMAN_ARRAY; 234 error = rman_init(&sc->sc_iomem); 235 if (!error) { 236 sc->sc_irq.rm_type = RMAN_ARRAY; 237 error = rman_init(&sc->sc_irq); 238 if (!error) 239 break; 240 rman_fini(&sc->sc_iomem); 241 } 242 rman_fini(&sc->sc_ioport); 243 } 244 return (error); 245 } while (0); 246 247 snprintf(buffer, sizeof(buffer), "%s I/O port mapping", 248 device_get_nameunit(dev)); 249 sc->sc_ioport.rm_descr = strdup(buffer, M_PUC); 250 snprintf(buffer, sizeof(buffer), "%s I/O memory mapping", 251 device_get_nameunit(dev)); 252 sc->sc_iomem.rm_descr = strdup(buffer, M_PUC); 253 snprintf(buffer, sizeof(buffer), "%s port numbers", 254 device_get_nameunit(dev)); 255 sc->sc_irq.rm_descr = strdup(buffer, M_PUC); 256 257 error = puc_config(sc, PUC_CFG_GET_NPORTS, 0, &res); 258 KASSERT(error == 0, ("%s %d", __func__, __LINE__)); 259 sc->sc_nports = (int)res; 260 sc->sc_port = malloc(sc->sc_nports * sizeof(struct puc_port), 261 M_PUC, M_WAITOK|M_ZERO); 262 263 error = rman_manage_region(&sc->sc_irq, 1, sc->sc_nports); 264 if (error) 265 goto fail; 266 267 error = puc_config(sc, PUC_CFG_SETUP, 0, &res); 268 if (error) 269 goto fail; 270 271 for (idx = 0; idx < sc->sc_nports; idx++) { 272 port = &sc->sc_port[idx]; 273 port->p_nr = idx + 1; 274 error = puc_config(sc, PUC_CFG_GET_TYPE, idx, &res); 275 if (error) 276 goto fail; 277 port->p_type = res; 278 error = puc_config(sc, PUC_CFG_GET_RID, idx, &res); 279 if (error) 280 goto fail; 281 bar = puc_get_bar(sc, res); 282 if (bar == NULL) { 283 error = ENXIO; 284 goto fail; 285 } 286 port->p_bar = bar; 287 start = rman_get_start(bar->b_res); 288 error = puc_config(sc, PUC_CFG_GET_OFS, idx, &res); 289 if (error) 290 goto fail; 291 ofs = res; 292 error = puc_config(sc, PUC_CFG_GET_LEN, idx, &res); 293 if (error) 294 goto fail; 295 size = res; 296 rm = (bar->b_type == SYS_RES_IOPORT) 297 ? &sc->sc_ioport: &sc->sc_iomem; 298 port->p_rres = rman_reserve_resource(rm, start + ofs, 299 start + ofs + size - 1, size, 0, NULL); 300 if (port->p_rres != NULL) { 301 bsh = rman_get_bushandle(bar->b_res); 302 bst = rman_get_bustag(bar->b_res); 303 bus_space_subregion(bst, bsh, ofs, size, &bsh); 304 rman_set_bushandle(port->p_rres, bsh); 305 rman_set_bustag(port->p_rres, bst); 306 } 307 port->p_ires = rman_reserve_resource(&sc->sc_irq, port->p_nr, 308 port->p_nr, 1, 0, NULL); 309 if (port->p_ires == NULL) { 310 error = ENXIO; 311 goto fail; 312 } 313 error = puc_config(sc, PUC_CFG_GET_CLOCK, idx, &res); 314 if (error) 315 goto fail; 316 port->p_rclk = res; 317 318 port->p_dev = device_add_child(dev, NULL, -1); 319 if (port->p_dev != NULL) 320 device_set_ivars(port->p_dev, (void *)port); 321 } 322 323 error = puc_config(sc, PUC_CFG_GET_ILR, 0, &res); 324 if (error) 325 goto fail; 326 sc->sc_ilr = res; 327 if (bootverbose && sc->sc_ilr != 0) 328 device_printf(dev, "using interrupt latch register\n"); 329 330 sc->sc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->sc_irid, 331 RF_ACTIVE|RF_SHAREABLE); 332 if (sc->sc_ires != NULL) { 333 error = bus_setup_intr(dev, sc->sc_ires, 334 INTR_TYPE_TTY, puc_intr, NULL, sc, &sc->sc_icookie); 335 if (error) 336 error = bus_setup_intr(dev, sc->sc_ires, 337 INTR_TYPE_TTY | INTR_MPSAFE, NULL, 338 (driver_intr_t *)puc_intr, sc, &sc->sc_icookie); 339 else 340 sc->sc_fastintr = 1; 341 342 if (error) { 343 device_printf(dev, "could not activate interrupt\n"); 344 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irid, 345 sc->sc_ires); 346 sc->sc_ires = NULL; 347 } 348 } 349 if (sc->sc_ires == NULL) { 350 /* XXX no interrupt resource. Force polled mode. */ 351 sc->sc_polled = 1; 352 } 353 354 /* Probe and attach our children. */ 355 for (idx = 0; idx < sc->sc_nports; idx++) { 356 port = &sc->sc_port[idx]; 357 if (port->p_dev == NULL) 358 continue; 359 error = device_probe_and_attach(port->p_dev); 360 if (error) { 361 device_delete_child(dev, port->p_dev); 362 port->p_dev = NULL; 363 } 364 } 365 366 /* 367 * If there are no serdev devices, then our interrupt handler 368 * will do nothing. Tear it down. 369 */ 370 if (sc->sc_serdevs == 0UL) 371 bus_teardown_intr(dev, sc->sc_ires, sc->sc_icookie); 372 373 return (0); 374 375 fail: 376 for (idx = 0; idx < sc->sc_nports; idx++) { 377 port = &sc->sc_port[idx]; 378 if (port->p_dev != NULL) 379 device_delete_child(dev, port->p_dev); 380 if (port->p_rres != NULL) 381 rman_release_resource(port->p_rres); 382 if (port->p_ires != NULL) 383 rman_release_resource(port->p_ires); 384 } 385 for (idx = 0; idx < PUC_PCI_BARS; idx++) { 386 bar = &sc->sc_bar[idx]; 387 if (bar->b_res != NULL) 388 bus_release_resource(sc->sc_dev, bar->b_type, 389 bar->b_rid, bar->b_res); 390 } 391 rman_fini(&sc->sc_irq); 392 free(__DECONST(void *, sc->sc_irq.rm_descr), M_PUC); 393 rman_fini(&sc->sc_iomem); 394 free(__DECONST(void *, sc->sc_iomem.rm_descr), M_PUC); 395 rman_fini(&sc->sc_ioport); 396 free(__DECONST(void *, sc->sc_ioport.rm_descr), M_PUC); 397 free(sc->sc_port, M_PUC); 398 return (error); 399 } 400 401 int 402 puc_bfe_detach(device_t dev) 403 { 404 struct puc_bar *bar; 405 struct puc_port *port; 406 struct puc_softc *sc; 407 int error, idx; 408 409 sc = device_get_softc(dev); 410 411 /* Detach our children. */ 412 error = 0; 413 for (idx = 0; idx < sc->sc_nports; idx++) { 414 port = &sc->sc_port[idx]; 415 if (port->p_dev == NULL) 416 continue; 417 if (device_detach(port->p_dev) == 0) { 418 device_delete_child(dev, port->p_dev); 419 if (port->p_rres != NULL) 420 rman_release_resource(port->p_rres); 421 if (port->p_ires != NULL) 422 rman_release_resource(port->p_ires); 423 } else 424 error = ENXIO; 425 } 426 if (error) 427 return (error); 428 429 if (sc->sc_serdevs != 0UL) 430 bus_teardown_intr(dev, sc->sc_ires, sc->sc_icookie); 431 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irid, sc->sc_ires); 432 433 for (idx = 0; idx < PUC_PCI_BARS; idx++) { 434 bar = &sc->sc_bar[idx]; 435 if (bar->b_res != NULL) 436 bus_release_resource(sc->sc_dev, bar->b_type, 437 bar->b_rid, bar->b_res); 438 } 439 440 rman_fini(&sc->sc_irq); 441 free(__DECONST(void *, sc->sc_irq.rm_descr), M_PUC); 442 rman_fini(&sc->sc_iomem); 443 free(__DECONST(void *, sc->sc_iomem.rm_descr), M_PUC); 444 rman_fini(&sc->sc_ioport); 445 free(__DECONST(void *, sc->sc_ioport.rm_descr), M_PUC); 446 free(sc->sc_port, M_PUC); 447 return (0); 448 } 449 450 int 451 puc_bfe_probe(device_t dev, const struct puc_cfg *cfg) 452 { 453 struct puc_softc *sc; 454 intptr_t res; 455 int error; 456 457 sc = device_get_softc(dev); 458 sc->sc_dev = dev; 459 sc->sc_cfg = cfg; 460 461 /* We don't attach to single-port serial cards. */ 462 if (cfg->ports == PUC_PORT_1S || cfg->ports == PUC_PORT_1P) 463 return (EDOOFUS); 464 error = puc_config(sc, PUC_CFG_GET_NPORTS, 0, &res); 465 if (error) 466 return (error); 467 error = puc_config(sc, PUC_CFG_GET_DESC, 0, &res); 468 if (error) 469 return (error); 470 if (res != 0) 471 device_set_desc(dev, (const char *)res); 472 return (BUS_PROBE_DEFAULT); 473 } 474 475 struct resource * 476 puc_bus_alloc_resource(device_t dev, device_t child, int type, int *rid, 477 rman_res_t start, rman_res_t end, rman_res_t count, u_int flags) 478 { 479 struct puc_port *port; 480 struct resource *res; 481 device_t assigned, originator; 482 int error; 483 484 /* Get our immediate child. */ 485 originator = child; 486 while (child != NULL && device_get_parent(child) != dev) 487 child = device_get_parent(child); 488 if (child == NULL) 489 return (NULL); 490 491 port = device_get_ivars(child); 492 KASSERT(port != NULL, ("%s %d", __func__, __LINE__)); 493 494 if (rid == NULL || *rid != 0) 495 return (NULL); 496 497 /* We only support default allocations. */ 498 if (!RMAN_IS_DEFAULT_RANGE(start, end)) 499 return (NULL); 500 501 if (type == port->p_bar->b_type) 502 res = port->p_rres; 503 else if (type == SYS_RES_IRQ) 504 res = port->p_ires; 505 else 506 return (NULL); 507 508 if (res == NULL) 509 return (NULL); 510 511 assigned = rman_get_device(res); 512 if (assigned == NULL) /* Not allocated */ 513 rman_set_device(res, originator); 514 else if (assigned != originator) 515 return (NULL); 516 517 if (flags & RF_ACTIVE) { 518 error = rman_activate_resource(res); 519 if (error) { 520 if (assigned == NULL) 521 rman_set_device(res, NULL); 522 return (NULL); 523 } 524 } 525 526 return (res); 527 } 528 529 int 530 puc_bus_release_resource(device_t dev, device_t child, int type, int rid, 531 struct resource *res) 532 { 533 struct puc_port *port; 534 device_t originator; 535 536 /* Get our immediate child. */ 537 originator = child; 538 while (child != NULL && device_get_parent(child) != dev) 539 child = device_get_parent(child); 540 if (child == NULL) 541 return (EINVAL); 542 543 port = device_get_ivars(child); 544 KASSERT(port != NULL, ("%s %d", __func__, __LINE__)); 545 546 if (rid != 0 || res == NULL) 547 return (EINVAL); 548 549 if (type == port->p_bar->b_type) { 550 if (res != port->p_rres) 551 return (EINVAL); 552 } else if (type == SYS_RES_IRQ) { 553 if (res != port->p_ires) 554 return (EINVAL); 555 if (port->p_hasintr) 556 return (EBUSY); 557 } else 558 return (EINVAL); 559 560 if (rman_get_device(res) != originator) 561 return (ENXIO); 562 if (rman_get_flags(res) & RF_ACTIVE) 563 rman_deactivate_resource(res); 564 rman_set_device(res, NULL); 565 return (0); 566 } 567 568 int 569 puc_bus_get_resource(device_t dev, device_t child, int type, int rid, 570 rman_res_t *startp, rman_res_t *countp) 571 { 572 struct puc_port *port; 573 struct resource *res; 574 rman_res_t start; 575 576 /* Get our immediate child. */ 577 while (child != NULL && device_get_parent(child) != dev) 578 child = device_get_parent(child); 579 if (child == NULL) 580 return (EINVAL); 581 582 port = device_get_ivars(child); 583 KASSERT(port != NULL, ("%s %d", __func__, __LINE__)); 584 585 if (type == port->p_bar->b_type) 586 res = port->p_rres; 587 else if (type == SYS_RES_IRQ) 588 res = port->p_ires; 589 else 590 return (ENXIO); 591 592 if (rid != 0 || res == NULL) 593 return (ENXIO); 594 595 start = rman_get_start(res); 596 if (startp != NULL) 597 *startp = start; 598 if (countp != NULL) 599 *countp = rman_get_end(res) - start + 1; 600 return (0); 601 } 602 603 int 604 puc_bus_setup_intr(device_t dev, device_t child, struct resource *res, 605 int flags, driver_filter_t *filt, void (*ihand)(void *), void *arg, void **cookiep) 606 { 607 struct puc_port *port; 608 struct puc_softc *sc; 609 device_t originator; 610 int i, isrc, serdev; 611 612 sc = device_get_softc(dev); 613 614 /* Get our immediate child. */ 615 originator = child; 616 while (child != NULL && device_get_parent(child) != dev) 617 child = device_get_parent(child); 618 if (child == NULL) 619 return (EINVAL); 620 621 port = device_get_ivars(child); 622 KASSERT(port != NULL, ("%s %d", __func__, __LINE__)); 623 624 if (cookiep == NULL || res != port->p_ires) 625 return (EINVAL); 626 /* We demand that serdev devices use filter_only interrupts. */ 627 if (port->p_type == PUC_TYPE_SERIAL && ihand != NULL) 628 return (ENXIO); 629 if (rman_get_device(port->p_ires) != originator) 630 return (ENXIO); 631 632 /* 633 * Have non-serdev ports handled by the bus implementation. It 634 * supports multiple handlers for a single interrupt as it is, 635 * so we wouldn't add value if we did it ourselves. 636 */ 637 serdev = 0; 638 if (port->p_type == PUC_TYPE_SERIAL) { 639 i = 0, isrc = SER_INT_OVERRUN; 640 while (i < PUC_ISRCCNT) { 641 port->p_ihsrc[i] = SERDEV_IHAND(originator, isrc); 642 if (port->p_ihsrc[i] != NULL) 643 serdev = 1; 644 i++, isrc <<= 1; 645 } 646 } 647 if (!serdev) 648 return (BUS_SETUP_INTR(device_get_parent(dev), originator, 649 sc->sc_ires, flags, filt, ihand, arg, cookiep)); 650 651 sc->sc_serdevs |= 1UL << (port->p_nr - 1); 652 653 port->p_hasintr = 1; 654 port->p_iharg = arg; 655 656 *cookiep = port; 657 return (0); 658 } 659 660 int 661 puc_bus_teardown_intr(device_t dev, device_t child, struct resource *res, 662 void *cookie) 663 { 664 struct puc_port *port; 665 struct puc_softc *sc; 666 device_t originator; 667 int i; 668 669 sc = device_get_softc(dev); 670 671 /* Get our immediate child. */ 672 originator = child; 673 while (child != NULL && device_get_parent(child) != dev) 674 child = device_get_parent(child); 675 if (child == NULL) 676 return (EINVAL); 677 678 port = device_get_ivars(child); 679 KASSERT(port != NULL, ("%s %d", __func__, __LINE__)); 680 681 if (res != port->p_ires) 682 return (EINVAL); 683 if (rman_get_device(port->p_ires) != originator) 684 return (ENXIO); 685 686 if (!port->p_hasintr) 687 return (BUS_TEARDOWN_INTR(device_get_parent(dev), originator, 688 sc->sc_ires, cookie)); 689 690 if (cookie != port) 691 return (EINVAL); 692 693 port->p_hasintr = 0; 694 port->p_iharg = NULL; 695 696 for (i = 0; i < PUC_ISRCCNT; i++) 697 port->p_ihsrc[i] = NULL; 698 699 return (0); 700 } 701 702 int 703 puc_bus_read_ivar(device_t dev, device_t child, int index, uintptr_t *result) 704 { 705 struct puc_port *port; 706 707 /* Get our immediate child. */ 708 while (child != NULL && device_get_parent(child) != dev) 709 child = device_get_parent(child); 710 if (child == NULL) 711 return (EINVAL); 712 713 port = device_get_ivars(child); 714 KASSERT(port != NULL, ("%s %d", __func__, __LINE__)); 715 716 if (result == NULL) 717 return (EINVAL); 718 719 switch(index) { 720 case PUC_IVAR_CLOCK: 721 *result = port->p_rclk; 722 break; 723 case PUC_IVAR_TYPE: 724 *result = port->p_type; 725 break; 726 default: 727 return (ENOENT); 728 } 729 return (0); 730 } 731 732 int 733 puc_bus_print_child(device_t dev, device_t child) 734 { 735 struct puc_port *port; 736 int retval; 737 738 port = device_get_ivars(child); 739 retval = 0; 740 741 retval += bus_print_child_header(dev, child); 742 retval += printf(" at port %d", port->p_nr); 743 retval += bus_print_child_footer(dev, child); 744 745 return (retval); 746 } 747 748 int 749 puc_bus_child_location_str(device_t dev, device_t child, char *buf, 750 size_t buflen) 751 { 752 struct puc_port *port; 753 754 port = device_get_ivars(child); 755 snprintf(buf, buflen, "port=%d", port->p_nr); 756 return (0); 757 } 758 759 int 760 puc_bus_child_pnpinfo_str(device_t dev, device_t child, char *buf, 761 size_t buflen) 762 { 763 struct puc_port *port; 764 765 port = device_get_ivars(child); 766 snprintf(buf, buflen, "type=%d", port->p_type); 767 return (0); 768 } 769