1 /* 2 * $NetBSD: puc.c,v 1.7 2000/07/29 17:43:38 jlam Exp $ 3 * $FreeBSD: src/sys/dev/puc/puc.c,v 1.3.2.5 2003/04/04 08:42:17 sobomax Exp $ 4 */ 5 6 /*- 7 * Copyright (c) 2002 JF Hay. All rights reserved. 8 * Copyright (c) 2000 M. Warner Losh. All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice unmodified, this list of conditions, and the following 15 * disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 1996, 1998, 1999 34 * Christopher G. Demetriou. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. All advertising materials mentioning features or use of this software 45 * must display the following acknowledgement: 46 * This product includes software developed by Christopher G. Demetriou 47 * for the NetBSD Project. 48 * 4. The name of the author may not be used to endorse or promote products 49 * derived from this software without specific prior written permission 50 * 51 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 52 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 53 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 54 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 55 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 56 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 60 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 61 */ 62 63 /* 64 * PCI "universal" communication card device driver, glues com, lpt, 65 * and similar ports to PCI via bridge chip often much larger than 66 * the devices being glued. 67 * 68 * Author: Christopher G. Demetriou, May 14, 1998 (derived from NetBSD 69 * sys/dev/pci/pciide.c, revision 1.6). 70 * 71 * These devices could be (and some times are) described as 72 * communications/{serial,parallel}, etc. devices with known 73 * programming interfaces, but those programming interfaces (in 74 * particular the BAR assignments for devices, etc.) in fact are not 75 * particularly well defined. 76 * 77 * After I/we have seen more of these devices, it may be possible 78 * to generalize some of these bits. In particular, devices which 79 * describe themselves as communications/serial/16[45]50, and 80 * communications/parallel/??? might be attached via direct 81 * 'com' and 'lpt' attachments to pci. 82 */ 83 84 #include <sys/param.h> 85 #include <sys/systm.h> 86 #include <sys/kernel.h> 87 #include <sys/bus.h> 88 #include <sys/conf.h> 89 #include <sys/malloc.h> 90 #include <sys/rman.h> 91 92 #include <bus/pci/pcireg.h> 93 #include <bus/pci/pcivar.h> 94 #include "pucvar.h" 95 96 struct puc_softc { 97 const struct puc_device_description *sc_desc; 98 99 /* card-global dynamic data */ 100 int barmuxed; 101 int irqrid; 102 struct resource *irqres; 103 void *intr_cookie; 104 int ilr_enabled; 105 bus_space_tag_t ilr_st; 106 bus_space_handle_t ilr_sh; 107 108 struct { 109 struct resource *res; 110 } sc_bar_mappings[PUC_MAX_BAR]; 111 112 /* per-port dynamic data */ 113 struct { 114 struct device *dev; 115 /* filled in by bus_setup_intr() */ 116 void (*ihand) (void *); 117 void *ihandarg; 118 } sc_ports[PUC_MAX_PORTS]; 119 }; 120 121 struct puc_device { 122 struct resource_list resources; 123 u_int serialfreq; 124 }; 125 126 static int puc_pci_probe(device_t dev); 127 static int puc_pci_attach(device_t dev); 128 static void puc_intr(void *arg); 129 130 static struct resource *puc_alloc_resource(device_t, device_t, int, int *, 131 u_long, u_long, u_long, u_int); 132 static int puc_release_resource(device_t, device_t, int, int, 133 struct resource *); 134 static int puc_get_resource(device_t, device_t, int, int, u_long *, u_long *); 135 static int puc_setup_intr(device_t, device_t, struct resource *, int, 136 void (*)(void *), void *, void **, lwkt_serialize_t); 137 static int puc_teardown_intr(device_t, device_t, struct resource *, 138 void *); 139 static int puc_read_ivar(device_t, device_t, int, uintptr_t *); 140 141 static const struct puc_device_description *puc_find_description(uint32_t, 142 uint32_t, uint32_t, uint32_t); 143 static void puc_config_superio(device_t); 144 static void puc_config_win877(struct resource *); 145 static int puc_find_free_unit(char *); 146 #ifdef PUC_DEBUG 147 static void puc_print_win877(bus_space_tag_t, bus_space_handle_t, u_int, 148 u_int); 149 static void puc_print_resource_list(struct resource_list *); 150 #endif 151 152 static int 153 puc_pci_probe(device_t dev) 154 { 155 uint32_t v1, v2, d1, d2; 156 const struct puc_device_description *desc; 157 158 if ((pci_read_config(dev, PCIR_HDRTYPE, 1) & PCIM_HDRTYPE) != 0) 159 return (ENXIO); 160 161 v1 = pci_read_config(dev, PCIR_VENDOR, 2); 162 d1 = pci_read_config(dev, PCIR_DEVICE, 2); 163 v2 = pci_read_config(dev, PCIR_SUBVEND_0, 2); 164 d2 = pci_read_config(dev, PCIR_SUBDEV_0, 2); 165 166 desc = puc_find_description(v1, d1, v2, d2); 167 if (desc == NULL) 168 return (ENXIO); 169 device_set_desc(dev, desc->name); 170 return (0); 171 } 172 173 static int 174 puc_probe_ilr(struct puc_softc *sc, struct resource *res) 175 { 176 u_char t1, t2; 177 int i; 178 179 switch (sc->sc_desc->ilr_type) { 180 case PUC_ILR_TYPE_DIGI: 181 sc->ilr_st = rman_get_bustag(res); 182 sc->ilr_sh = rman_get_bushandle(res); 183 for (i = 0; i < 2; i++) { 184 t1 = bus_space_read_1(sc->ilr_st, sc->ilr_sh, 185 sc->sc_desc->ilr_offset[i]); 186 t1 = ~t1; 187 bus_space_write_1(sc->ilr_st, sc->ilr_sh, 188 sc->sc_desc->ilr_offset[i], t1); 189 t2 = bus_space_read_1(sc->ilr_st, sc->ilr_sh, 190 sc->sc_desc->ilr_offset[i]); 191 if (t2 == t1) 192 return (0); 193 } 194 return (1); 195 196 default: 197 break; 198 } 199 return (0); 200 } 201 202 static int 203 puc_pci_attach(device_t dev) 204 { 205 char *typestr; 206 int bidx, childunit, i, irq_setup, rid; 207 uint32_t v1, v2, d1, d2; 208 struct puc_softc *sc; 209 struct puc_device *pdev; 210 struct resource *res; 211 struct resource_list_entry *rle; 212 213 sc = (struct puc_softc *)device_get_softc(dev); 214 bzero(sc, sizeof(*sc)); 215 v1 = pci_read_config(dev, PCIR_VENDOR, 2); 216 d1 = pci_read_config(dev, PCIR_DEVICE, 2); 217 v2 = pci_read_config(dev, PCIR_SUBVEND_0, 2); 218 d2 = pci_read_config(dev, PCIR_SUBDEV_0, 2); 219 sc->sc_desc = puc_find_description(v1, d1, v2, d2); 220 if (sc->sc_desc == NULL) 221 return (ENXIO); 222 223 #ifdef PUC_DEBUG 224 bootverbose = 1; 225 226 kprintf("puc: name: %s\n", sc->sc_desc->name); 227 #endif 228 rid = 0; 229 res = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, 230 RF_ACTIVE | RF_SHAREABLE); 231 if (!res) 232 return (ENXIO); 233 234 sc->irqres = res; 235 sc->irqrid = rid; 236 irq_setup = BUS_SETUP_INTR(device_get_parent(dev), dev, res, 237 0, puc_intr, sc, 238 &sc->intr_cookie, NULL); 239 if (irq_setup != 0) 240 return (ENXIO); 241 242 rid = 0; 243 for (i = 0; PUC_PORT_VALID(sc->sc_desc, i); i++) { 244 if (rid == sc->sc_desc->ports[i].bar) 245 sc->barmuxed = 1; 246 rid = sc->sc_desc->ports[i].bar; 247 bidx = PUC_PORT_BAR_INDEX(rid); 248 249 if (sc->sc_bar_mappings[bidx].res != NULL) 250 continue; 251 res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 252 0ul, ~0ul, 1, RF_ACTIVE); 253 if (res == NULL) { 254 kprintf("could not get resource\n"); 255 continue; 256 } 257 sc->sc_bar_mappings[bidx].res = res; 258 259 if (sc->sc_desc->ilr_type != PUC_ILR_TYPE_NONE) { 260 sc->ilr_enabled = puc_probe_ilr(sc, res); 261 if (sc->ilr_enabled) 262 device_printf(dev, "ILR enabled\n"); 263 else 264 device_printf(dev, "ILR disabled\n"); 265 } 266 #ifdef PUC_DEBUG 267 kprintf("port bst %x, start %x, end %x\n", 268 (u_int)rman_get_bustag(res), (u_int)rman_get_start(res), 269 (u_int)rman_get_end(res)); 270 #endif 271 } 272 273 puc_config_superio(dev); 274 275 for (i = 0; PUC_PORT_VALID(sc->sc_desc, i); i++) { 276 rid = sc->sc_desc->ports[i].bar; 277 bidx = PUC_PORT_BAR_INDEX(rid); 278 if (sc->sc_bar_mappings[bidx].res == NULL) 279 continue; 280 281 switch (sc->sc_desc->ports[i].type) { 282 case PUC_PORT_TYPE_COM: 283 typestr = "sio"; 284 break; 285 default: 286 continue; 287 } 288 pdev = kmalloc(sizeof(struct puc_device), M_DEVBUF, 289 M_WAITOK | M_ZERO); 290 resource_list_init(&pdev->resources); 291 292 /* First fake up an IRQ resource. */ 293 resource_list_add(&pdev->resources, SYS_RES_IRQ, 0, 294 rman_get_start(sc->irqres), rman_get_end(sc->irqres), 295 rman_get_end(sc->irqres) - rman_get_start(sc->irqres) + 1); 296 rle = resource_list_find(&pdev->resources, SYS_RES_IRQ, 0); 297 rle->res = sc->irqres; 298 299 /* Now fake an IOPORT resource */ 300 res = sc->sc_bar_mappings[bidx].res; 301 resource_list_add(&pdev->resources, SYS_RES_IOPORT, 0, 302 rman_get_start(res) + sc->sc_desc->ports[i].offset, 303 rman_get_end(res) + sc->sc_desc->ports[i].offset + 8 - 1, 304 8); 305 rle = resource_list_find(&pdev->resources, SYS_RES_IOPORT, 0); 306 307 if (sc->barmuxed == 0) { 308 rle->res = sc->sc_bar_mappings[bidx].res; 309 } else { 310 rle->res = kmalloc(sizeof(struct resource), M_DEVBUF, 311 M_WAITOK | M_ZERO); 312 313 rle->res->r_start = rman_get_start(res) + 314 sc->sc_desc->ports[i].offset; 315 rle->res->r_end = rle->res->r_start + 8 - 1; 316 rle->res->r_bustag = rman_get_bustag(res); 317 bus_space_subregion(rle->res->r_bustag, 318 rman_get_bushandle(res), 319 sc->sc_desc->ports[i].offset, 8, 320 &rle->res->r_bushandle); 321 } 322 323 pdev->serialfreq = sc->sc_desc->ports[i].serialfreq; 324 325 childunit = puc_find_free_unit(typestr); 326 sc->sc_ports[i].dev = device_add_child(dev, typestr, childunit); 327 if (sc->sc_ports[i].dev == NULL) { 328 if (sc->barmuxed) { 329 bus_space_unmap(rman_get_bustag(rle->res), 330 rman_get_bushandle(rle->res), 331 8); 332 kfree(rle->res, M_DEVBUF); 333 kfree(pdev, M_DEVBUF); 334 } 335 continue; 336 } 337 device_set_ivars(sc->sc_ports[i].dev, pdev); 338 device_set_desc(sc->sc_ports[i].dev, sc->sc_desc->name); 339 if (!bootverbose) 340 device_quiet(sc->sc_ports[i].dev); 341 #ifdef PUC_DEBUG 342 kprintf("puc: type %d, bar %x, offset %x\n", 343 sc->sc_desc->ports[i].type, 344 sc->sc_desc->ports[i].bar, 345 sc->sc_desc->ports[i].offset); 346 print_resource_list(&pdev->resources); 347 #endif 348 device_set_flags(sc->sc_ports[i].dev, 349 sc->sc_desc->ports[i].flags); 350 if (device_probe_and_attach(sc->sc_ports[i].dev) != 0) { 351 if (sc->barmuxed) { 352 bus_space_unmap(rman_get_bustag(rle->res), 353 rman_get_bushandle(rle->res), 354 8); 355 kfree(rle->res, M_DEVBUF); 356 kfree(pdev, M_DEVBUF); 357 } 358 } 359 } 360 361 #ifdef PUC_DEBUG 362 bootverbose = 0; 363 #endif 364 return (0); 365 } 366 367 static u_int32_t 368 puc_ilr_read(struct puc_softc *sc) 369 { 370 u_int32_t mask; 371 int i; 372 373 mask = 0; 374 switch (sc->sc_desc->ilr_type) { 375 case PUC_ILR_TYPE_DIGI: 376 for (i = 1; i >= 0; i--) { 377 mask = (mask << 8) | (bus_space_read_1(sc->ilr_st, 378 sc->ilr_sh, sc->sc_desc->ilr_offset[i]) & 0xff); 379 } 380 break; 381 382 default: 383 mask = 0xffffffff; 384 break; 385 } 386 return (mask); 387 } 388 389 /* 390 * This is an interrupt handler. For boards that can't tell us which 391 * device generated the interrupt it just calls all the registered 392 * handlers sequencially, but for boards that can tell us which 393 * device(s) generated the interrupt it calls only handlers for devices 394 * that actually generated the interrupt. 395 */ 396 static void 397 puc_intr(void *arg) 398 { 399 int i; 400 u_int32_t ilr_mask; 401 struct puc_softc *sc; 402 403 sc = (struct puc_softc *)arg; 404 ilr_mask = sc->ilr_enabled ? puc_ilr_read(sc) : 0xffffffff; 405 for (i = 0; i < PUC_MAX_PORTS; i++) 406 if (sc->sc_ports[i].ihand != NULL && 407 ((ilr_mask >> i) & 0x00000001)) 408 (sc->sc_ports[i].ihand)(sc->sc_ports[i].ihandarg); 409 } 410 411 static const struct puc_device_description * 412 puc_find_description(uint32_t vend, uint32_t prod, uint32_t svend, 413 uint32_t sprod) 414 { 415 int i; 416 417 #define checkreg(val, index) \ 418 (((val) & puc_devices[i].rmask[(index)]) == puc_devices[i].rval[(index)]) 419 420 for (i = 0; puc_devices[i].name != NULL; i++) { 421 if (checkreg(vend, PUC_REG_VEND) && 422 checkreg(prod, PUC_REG_PROD) && 423 checkreg(svend, PUC_REG_SVEND) && 424 checkreg(sprod, PUC_REG_SPROD)) 425 return (&puc_devices[i]); 426 } 427 428 #undef checkreg 429 430 return (NULL); 431 } 432 433 /* 434 * It might be possible to make these more generic if we can detect patterns. 435 * For instance maybe if the size of a bar is 0x400 (the old isa space) it 436 * might contain one or more superio chips. 437 */ 438 static void 439 puc_config_superio(device_t dev) 440 { 441 struct puc_softc *sc = (struct puc_softc *)device_get_softc(dev); 442 443 if (sc->sc_desc->rval[PUC_REG_VEND] == 0x1592 && 444 sc->sc_desc->rval[PUC_REG_PROD] == 0x0781) 445 puc_config_win877(sc->sc_bar_mappings[0].res); 446 } 447 448 #define rdspio(indx) (bus_space_write_1(bst, bsh, efir, indx), \ 449 bus_space_read_1(bst, bsh, efdr)) 450 #define wrspio(indx,data) (bus_space_write_1(bst, bsh, efir, indx), \ 451 bus_space_write_1(bst, bsh, efdr, data)) 452 453 #ifdef PUC_DEBUG 454 static void 455 puc_print_win877(bus_space_tag_t bst, bus_space_handle_t bsh, u_int efir, 456 u_int efdr) 457 { 458 u_char cr00, cr01, cr04, cr09, cr0d, cr14, cr15, cr16, cr17; 459 u_char cr18, cr19, cr24, cr25, cr28, cr2c, cr31, cr32; 460 461 cr00 = rdspio(0x00); 462 cr01 = rdspio(0x01); 463 cr04 = rdspio(0x04); 464 cr09 = rdspio(0x09); 465 cr0d = rdspio(0x0d); 466 cr14 = rdspio(0x14); 467 cr15 = rdspio(0x15); 468 cr16 = rdspio(0x16); 469 cr17 = rdspio(0x17); 470 cr18 = rdspio(0x18); 471 cr19 = rdspio(0x19); 472 cr24 = rdspio(0x24); 473 cr25 = rdspio(0x25); 474 cr28 = rdspio(0x28); 475 cr2c = rdspio(0x2c); 476 cr31 = rdspio(0x31); 477 cr32 = rdspio(0x32); 478 kprintf("877T: cr00 %x, cr01 %x, cr04 %x, cr09 %x, cr0d %x, cr14 %x, " 479 "cr15 %x, cr16 %x, cr17 %x, cr18 %x, cr19 %x, cr24 %x, cr25 %x, " 480 "cr28 %x, cr2c %x, cr31 %x, cr32 %x\n", cr00, cr01, cr04, cr09, 481 cr0d, cr14, cr15, cr16, cr17, 482 cr18, cr19, cr24, cr25, cr28, cr2c, cr31, cr32); 483 } 484 #endif 485 486 static void 487 puc_config_win877(struct resource *res) 488 { 489 u_char val; 490 u_int efir, efdr; 491 bus_space_tag_t bst; 492 bus_space_handle_t bsh; 493 494 bst = rman_get_bustag(res); 495 bsh = rman_get_bushandle(res); 496 497 /* configure the first W83877TF */ 498 bus_space_write_1(bst, bsh, 0x250, 0x89); 499 efir = 0x251; 500 efdr = 0x252; 501 val = rdspio(0x09) & 0x0f; 502 if (val != 0x0c) { 503 kprintf("conf_win877: Oops not a W83877TF\n"); 504 return; 505 } 506 507 #ifdef PUC_DEBUG 508 kprintf("before: "); 509 puc_print_win877(bst, bsh, efir, efdr); 510 #endif 511 512 val = rdspio(0x16); 513 val |= 0x04; 514 wrspio(0x16, val); 515 val &= ~0x04; 516 wrspio(0x16, val); 517 518 wrspio(0x24, 0x2e8 >> 2); 519 wrspio(0x25, 0x2f8 >> 2); 520 wrspio(0x17, 0x03); 521 wrspio(0x28, 0x43); 522 523 #ifdef PUC_DEBUG 524 kprintf("after: "); 525 puc_print_win877(bst, bsh, efir, efdr); 526 #endif 527 528 bus_space_write_1(bst, bsh, 0x250, 0xaa); 529 530 /* configure the second W83877TF */ 531 bus_space_write_1(bst, bsh, 0x3f0, 0x87); 532 bus_space_write_1(bst, bsh, 0x3f0, 0x87); 533 efir = 0x3f0; 534 efdr = 0x3f1; 535 val = rdspio(0x09) & 0x0f; 536 if (val != 0x0c) { 537 kprintf("conf_win877: Oops not a W83877TF\n"); 538 return; 539 } 540 541 #ifdef PUC_DEBUG 542 kprintf("before: "); 543 puc_print_win877(bst, bsh, efir, efdr); 544 #endif 545 546 val = rdspio(0x16); 547 val |= 0x04; 548 wrspio(0x16, val); 549 val &= ~0x04; 550 wrspio(0x16, val); 551 552 wrspio(0x24, 0x3e8 >> 2); 553 wrspio(0x25, 0x3f8 >> 2); 554 wrspio(0x17, 0x03); 555 wrspio(0x28, 0x43); 556 557 #ifdef PUC_DEBUG 558 kprintf("after: "); 559 puc_print_win877(bst, bsh, efir, efdr); 560 #endif 561 562 bus_space_write_1(bst, bsh, 0x3f0, 0xaa); 563 } 564 565 #undef rdspio 566 #undef wrspio 567 568 static int puc_find_free_unit(char *name) 569 { 570 devclass_t dc; 571 int start; 572 int unit; 573 574 unit = 0; 575 start = 0; 576 while (resource_int_value(name, unit, "port", &start) == 0 && 577 start > 0) 578 unit++; 579 dc = devclass_find(name); 580 if (dc == NULL) 581 return (-1); 582 while (devclass_get_device(dc, unit)) 583 unit++; 584 #ifdef PUC_DEBUG 585 kprintf("puc: Using %s%d\n", name, unit); 586 #endif 587 return (unit); 588 } 589 590 #ifdef PUC_DEBUG 591 static void 592 puc_print_resource_list(struct resource_list *rl) 593 { 594 struct resource_list_entry *rle; 595 596 kprintf("print_resource_list: rl %p\n", rl); 597 SLIST_FOREACH(rle, rl, link) 598 kprintf("type %x, rid %x\n", rle->type, rle->rid); 599 kprintf("print_resource_list: end.\n"); 600 } 601 #endif 602 603 static struct resource * 604 puc_alloc_resource(device_t dev, device_t child, int type, int *rid, 605 u_long start, u_long end, u_long count, u_int flags) 606 { 607 struct puc_device *pdev; 608 struct resource *retval; 609 struct resource_list *rl; 610 struct resource_list_entry *rle; 611 612 pdev = device_get_ivars(child); 613 rl = &pdev->resources; 614 615 #ifdef PUC_DEBUG 616 kprintf("puc_alloc_resource: pdev %p, looking for t %x, r %x\n", 617 pdev, type, *rid); 618 puc_print_resource_list(rl); 619 #endif 620 retval = NULL; 621 rle = resource_list_find(rl, type, *rid); 622 if (rle) { 623 start = rle->start; 624 end = rle->end; 625 count = rle->count; 626 #ifdef PUC_DEBUG 627 kprintf("found rle, %lx, %lx, %lx\n", start, end, count); 628 #endif 629 retval = rle->res; 630 } else 631 kprintf("oops rle is gone\n"); 632 633 return (retval); 634 } 635 636 static int 637 puc_release_resource(device_t dev, device_t child, int type, int rid, 638 struct resource *res) 639 { 640 return (0); 641 } 642 643 static int 644 puc_get_resource(device_t dev, device_t child, int type, int rid, 645 u_long *startp, u_long *countp) 646 { 647 struct puc_device *pdev; 648 struct resource_list *rl; 649 struct resource_list_entry *rle; 650 651 pdev = device_get_ivars(child); 652 rl = &pdev->resources; 653 654 #ifdef PUC_DEBUG 655 kprintf("puc_get_resource: pdev %p, looking for t %x, r %x\n", pdev, 656 type, rid); 657 puc_print_resource_list(rl); 658 #endif 659 rle = resource_list_find(rl, type, rid); 660 if (rle) { 661 #ifdef PUC_DEBUG 662 kprintf("found rle %p,", rle); 663 #endif 664 if (startp != NULL) 665 *startp = rle->start; 666 if (countp != NULL) 667 *countp = rle->count; 668 #ifdef PUC_DEBUG 669 kprintf(" %lx, %lx\n", rle->start, rle->count); 670 #endif 671 return (0); 672 } else 673 kprintf("oops rle is gone\n"); 674 return (ENXIO); 675 } 676 677 static int 678 puc_setup_intr(device_t dev, device_t child, struct resource *r, int flags, 679 void (*ihand)(void *), void *arg, 680 void **cookiep, lwkt_serialize_t serializer) 681 { 682 int i; 683 struct puc_softc *sc; 684 685 sc = (struct puc_softc *)device_get_softc(dev); 686 for (i = 0; PUC_PORT_VALID(sc->sc_desc, i); i++) { 687 if (sc->sc_ports[i].dev == child) { 688 if (sc->sc_ports[i].ihand != 0) 689 return (ENXIO); 690 sc->sc_ports[i].ihand = ihand; 691 sc->sc_ports[i].ihandarg = arg; 692 KKASSERT(serializer == NULL); /* not handled yet XXX */ 693 *cookiep = arg; 694 return (0); 695 } 696 } 697 return (ENXIO); 698 } 699 700 static int 701 puc_teardown_intr(device_t dev, device_t child, struct resource *r, 702 void *cookie) 703 { 704 int i; 705 struct puc_softc *sc; 706 707 sc = (struct puc_softc *)device_get_softc(dev); 708 for (i = 0; PUC_PORT_VALID(sc->sc_desc, i); i++) { 709 if (sc->sc_ports[i].dev == child) { 710 sc->sc_ports[i].ihand = NULL; 711 sc->sc_ports[i].ihandarg = NULL; 712 return (0); 713 } 714 } 715 return (ENXIO); 716 } 717 718 static int 719 puc_read_ivar(device_t dev, device_t child, int index, uintptr_t *result) 720 { 721 struct puc_device *pdev; 722 723 pdev = device_get_ivars(child); 724 if (pdev == NULL) 725 return (ENOENT); 726 727 switch(index) { 728 case PUC_IVAR_FREQ: 729 *result = pdev->serialfreq; 730 break; 731 default: 732 return (ENOENT); 733 } 734 return (0); 735 } 736 737 static device_method_t puc_pci_methods[] = { 738 /* Device interface */ 739 DEVMETHOD(device_probe, puc_pci_probe), 740 DEVMETHOD(device_attach, puc_pci_attach), 741 742 DEVMETHOD(bus_alloc_resource, puc_alloc_resource), 743 DEVMETHOD(bus_release_resource, puc_release_resource), 744 DEVMETHOD(bus_get_resource, puc_get_resource), 745 DEVMETHOD(bus_read_ivar, puc_read_ivar), 746 DEVMETHOD(bus_setup_intr, puc_setup_intr), 747 DEVMETHOD(bus_teardown_intr, puc_teardown_intr), 748 DEVMETHOD(bus_print_child, bus_generic_print_child), 749 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 750 { 0, 0 } 751 }; 752 753 static driver_t puc_pci_driver = { 754 "puc", 755 puc_pci_methods, 756 sizeof(struct puc_softc), 757 }; 758 759 static devclass_t puc_devclass; 760 761 DRIVER_MODULE(puc, pci, puc_pci_driver, puc_devclass, NULL, NULL); 762