puc.c revision 150549
1245450Sganbold/* $NetBSD: puc.c,v 1.7 2000/07/29 17:43:38 jlam Exp $ */ 2245450Sganbold 3245450Sganbold/*- 4245450Sganbold * Copyright (c) 2002 JF Hay. All rights reserved. 5245450Sganbold * Copyright (c) 2000 M. Warner Losh. All rights reserved. 6245450Sganbold * 7245450Sganbold * Redistribution and use in source and binary forms, with or without 8245450Sganbold * modification, are permitted provided that the following conditions 9245450Sganbold * are met: 10245450Sganbold * 1. Redistributions of source code must retain the above copyright 11245450Sganbold * notice, this list of conditions and the following disclaimer. 12245450Sganbold * 2. Redistributions in binary form must reproduce the above copyright 13245450Sganbold * notice, this list of conditions and the following disclaimer in the 14245450Sganbold * documentation and/or other materials provided with the distribution. 15245450Sganbold * 16245450Sganbold * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17245450Sganbold * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18245450Sganbold * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19245450Sganbold * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20245450Sganbold * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21245450Sganbold * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22245450Sganbold * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23245450Sganbold * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24245450Sganbold * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25245450Sganbold * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26245450Sganbold * SUCH DAMAGE. 27245450Sganbold */ 28245450Sganbold 29245450Sganbold/*- 30245450Sganbold * Copyright (c) 1996, 1998, 1999 31245450Sganbold * Christopher G. Demetriou. All rights reserved. 32245450Sganbold * 33245450Sganbold * Redistribution and use in source and binary forms, with or without 34245450Sganbold * modification, are permitted provided that the following conditions 35245450Sganbold * are met: 36245450Sganbold * 1. Redistributions of source code must retain the above copyright 37245450Sganbold * notice, this list of conditions and the following disclaimer. 38245450Sganbold * 2. Redistributions in binary form must reproduce the above copyright 39245450Sganbold * notice, this list of conditions and the following disclaimer in the 40245450Sganbold * documentation and/or other materials provided with the distribution. 41245450Sganbold * 3. All advertising materials mentioning features or use of this software 42245450Sganbold * must display the following acknowledgement: 43245450Sganbold * This product includes software developed by Christopher G. Demetriou 44245450Sganbold * for the NetBSD Project. 45245450Sganbold * 4. The name of the author may not be used to endorse or promote products 46245450Sganbold * derived from this software without specific prior written permission 47245450Sganbold * 48245450Sganbold * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 49245450Sganbold * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 50245450Sganbold * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 51245450Sganbold * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 52245450Sganbold * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 53245450Sganbold * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 54245450Sganbold * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 55245450Sganbold * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 56245450Sganbold * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 57245450Sganbold * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 58245450Sganbold */ 59245450Sganbold 60245450Sganbold#include <sys/cdefs.h> 61245450Sganbold__FBSDID("$FreeBSD: head/sys/dev/puc/puc.c 150549 2005-09-25 20:21:14Z phk $"); 62245450Sganbold 63245450Sganbold/* 64245450Sganbold * PCI "universal" communication card device driver, glues com, lpt, 65245450Sganbold * and similar ports to PCI via bridge chip often much larger than 66245450Sganbold * the devices being glued. 67245450Sganbold * 68245450Sganbold * Author: Christopher G. Demetriou, May 14, 1998 (derived from NetBSD 69245450Sganbold * sys/dev/pci/pciide.c, revision 1.6). 70245450Sganbold * 71245450Sganbold * These devices could be (and some times are) described as 72245450Sganbold * communications/{serial,parallel}, etc. devices with known 73245450Sganbold * programming interfaces, but those programming interfaces (in 74245450Sganbold * particular the BAR assignments for devices, etc.) in fact are not 75245450Sganbold * particularly well defined. 76245450Sganbold * 77245450Sganbold * After I/we have seen more of these devices, it may be possible 78245450Sganbold * to generalize some of these bits. In particular, devices which 79245450Sganbold * describe themselves as communications/serial/16[45]50, and 80245450Sganbold * communications/parallel/??? might be attached via direct 81245450Sganbold * 'com' and 'lpt' attachments to pci. 82245450Sganbold */ 83245450Sganbold 84245450Sganbold#include "opt_puc.h" 85245450Sganbold#include <sys/param.h> 86245450Sganbold#include <sys/systm.h> 87245450Sganbold#include <sys/kernel.h> 88245450Sganbold#include <sys/bus.h> 89245450Sganbold#include <sys/conf.h> 90245450Sganbold#include <sys/malloc.h> 91245450Sganbold 92245450Sganbold#include <machine/bus.h> 93245450Sganbold#include <machine/resource.h> 94245450Sganbold#include <sys/rman.h> 95245450Sganbold 96245450Sganbold#include <dev/pci/pcireg.h> 97245450Sganbold#include <dev/pci/pcivar.h> 98245450Sganbold 99245450Sganbold#define PUC_ENTRAILS 1 100245450Sganbold#include <dev/puc/pucvar.h> 101245450Sganbold 102245450Sganboldstruct puc_device { 103245450Sganbold struct resource_list resources; 104245450Sganbold int port; 105245450Sganbold int regshft; 106245450Sganbold u_int serialfreq; 107245450Sganbold u_int subtype; 108245450Sganbold}; 109245450Sganbold 110245450Sganboldstatic void puc_intr(void *arg); 111245450Sganbold 112245450Sganboldstatic int puc_find_free_unit(char *); 113245450Sganbold#ifdef PUC_DEBUG 114245450Sganboldstatic void puc_print_resource_list(struct resource_list *); 115245450Sganbold#endif 116245450Sganbold 117245450Sganbolddevclass_t puc_devclass; 118245450Sganbold 119245450Sganboldstatic int 120245450Sganboldpuc_port_bar_index(struct puc_softc *sc, int bar) 121245450Sganbold{ 122245450Sganbold int i; 123245450Sganbold 124245450Sganbold for (i = 0; i < PUC_MAX_BAR; i += 1) { 125245450Sganbold if (!sc->sc_bar_mappings[i].used) 126245450Sganbold break; 127245450Sganbold if (sc->sc_bar_mappings[i].bar == bar) 128245450Sganbold return (i); 129245450Sganbold } 130245450Sganbold if (i == PUC_MAX_BAR) { 131245450Sganbold printf("%s: out of bars!\n", __func__); 132245450Sganbold return (-1); 133245450Sganbold } 134245450Sganbold sc->sc_bar_mappings[i].bar = bar; 135245450Sganbold sc->sc_bar_mappings[i].used = 1; 136245450Sganbold return (i); 137245450Sganbold} 138245450Sganbold 139245450Sganboldstatic int 140245450Sganboldpuc_probe_ilr(struct puc_softc *sc, struct resource *res) 141245450Sganbold{ 142245450Sganbold u_char t1, t2; 143245450Sganbold int i; 144245450Sganbold 145245450Sganbold switch (sc->sc_desc.ilr_type) { 146245450Sganbold case PUC_ILR_TYPE_DIGI: 147245450Sganbold sc->ilr_st = rman_get_bustag(res); 148245450Sganbold sc->ilr_sh = rman_get_bushandle(res); 149245450Sganbold for (i = 0; i < 2 && sc->sc_desc.ilr_offset[i] != 0; i++) { 150245450Sganbold t1 = bus_space_read_1(sc->ilr_st, sc->ilr_sh, 151245450Sganbold sc->sc_desc.ilr_offset[i]); 152245450Sganbold t1 = ~t1; 153245450Sganbold bus_space_write_1(sc->ilr_st, sc->ilr_sh, 154245450Sganbold sc->sc_desc.ilr_offset[i], t1); 155245450Sganbold t2 = bus_space_read_1(sc->ilr_st, sc->ilr_sh, 156245450Sganbold sc->sc_desc.ilr_offset[i]); 157245450Sganbold if (t2 == t1) 158245450Sganbold return (0); 159245450Sganbold } 160245450Sganbold return (1); 161245450Sganbold 162245450Sganbold default: 163245450Sganbold break; 164245450Sganbold } 165245450Sganbold return (0); 166245450Sganbold} 167245450Sganbold 168245450Sganboldint 169245450Sganboldpuc_attach(device_t dev, const struct puc_device_description *desc) 170245450Sganbold{ 171245450Sganbold char *typestr; 172245450Sganbold int bidx, childunit, i, irq_setup, ressz, rid, type; 173245450Sganbold struct puc_softc *sc; 174245450Sganbold struct puc_device *pdev; 175245450Sganbold struct resource *res; 176245450Sganbold struct resource_list_entry *rle; 177245450Sganbold bus_space_handle_t bh; 178245450Sganbold 179245450Sganbold if (desc == NULL) 180245450Sganbold return (ENXIO); 181245450Sganbold 182245450Sganbold sc = (struct puc_softc *)device_get_softc(dev); 183245450Sganbold bzero(sc, sizeof(*sc)); 184245450Sganbold sc->sc_desc = *desc; 185245450Sganbold 186245450Sganbold#ifdef PUC_DEBUG 187245450Sganbold bootverbose = 1; 188245450Sganbold 189245450Sganbold printf("puc: name: %s\n", sc->sc_desc.name); 190245450Sganbold#endif 191245450Sganbold rid = 0; 192245450Sganbold res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 193245450Sganbold RF_ACTIVE | RF_SHAREABLE); 194245450Sganbold if (!res) 195245450Sganbold return (ENXIO); 196245450Sganbold 197245450Sganbold sc->irqres = res; 198245450Sganbold sc->irqrid = rid; 199245450Sganbold#ifdef PUC_FASTINTR 200245450Sganbold irq_setup = BUS_SETUP_INTR(device_get_parent(dev), dev, res, 201245450Sganbold INTR_TYPE_TTY | INTR_FAST, puc_intr, sc, &sc->intr_cookie); 202245450Sganbold if (irq_setup == 0) 203245450Sganbold sc->fastintr = INTR_FAST; 204245450Sganbold else 205245450Sganbold irq_setup = BUS_SETUP_INTR(device_get_parent(dev), dev, res, 206245450Sganbold INTR_TYPE_TTY, puc_intr, sc, &sc->intr_cookie); 207245450Sganbold#else 208245450Sganbold irq_setup = BUS_SETUP_INTR(device_get_parent(dev), dev, res, 209245450Sganbold INTR_TYPE_TTY, puc_intr, sc, &sc->intr_cookie); 210245450Sganbold#endif 211245450Sganbold if (irq_setup != 0) 212245450Sganbold return (ENXIO); 213245450Sganbold 214245450Sganbold rid = 0; 215245450Sganbold for (i = 0; PUC_PORT_VALID(sc->sc_desc, i); i++) { 216245450Sganbold if (i > 0 && rid == sc->sc_desc.ports[i].bar) 217245450Sganbold sc->barmuxed = 1; 218245450Sganbold rid = sc->sc_desc.ports[i].bar; 219245450Sganbold bidx = puc_port_bar_index(sc, rid); 220245450Sganbold 221245450Sganbold if (bidx < 0 || sc->sc_bar_mappings[bidx].res != NULL) 222245450Sganbold continue; 223245450Sganbold 224245450Sganbold type = (sc->sc_desc.ports[i].flags & PUC_FLAGS_MEMORY) 225245450Sganbold ? SYS_RES_MEMORY : SYS_RES_IOPORT; 226245450Sganbold 227245450Sganbold res = bus_alloc_resource_any(dev, type, &rid, 228245450Sganbold RF_ACTIVE); 229245450Sganbold if (res == NULL && 230245450Sganbold sc->sc_desc.ports[i].flags & PUC_FLAGS_ALTRES) { 231245450Sganbold type = (type == SYS_RES_IOPORT) 232245450Sganbold ? SYS_RES_MEMORY : SYS_RES_IOPORT; 233245450Sganbold res = bus_alloc_resource_any(dev, type, &rid, 234245450Sganbold RF_ACTIVE); 235245450Sganbold } 236245450Sganbold if (res == NULL) { 237245450Sganbold device_printf(dev, "could not get resource\n"); 238245450Sganbold continue; 239245450Sganbold } 240245450Sganbold sc->sc_bar_mappings[bidx].type = type; 241245450Sganbold sc->sc_bar_mappings[bidx].res = res; 242245450Sganbold 243245450Sganbold if (sc->sc_desc.ilr_type != PUC_ILR_TYPE_NONE) { 244245450Sganbold sc->ilr_enabled = puc_probe_ilr(sc, res); 245245450Sganbold if (sc->ilr_enabled) 246245450Sganbold device_printf(dev, "ILR enabled\n"); 247245450Sganbold else 248245450Sganbold device_printf(dev, "ILR disabled\n"); 249245450Sganbold } 250245450Sganbold#ifdef PUC_DEBUG 251245450Sganbold printf("%s rid %d bst %lx, start %lx, end %lx\n", 252245450Sganbold (type == SYS_RES_MEMORY) ? "memory" : "port", rid, 253245450Sganbold (u_long)rman_get_bustag(res), (u_long)rman_get_start(res), 254245450Sganbold (u_long)rman_get_end(res)); 255245450Sganbold#endif 256245450Sganbold } 257245450Sganbold 258245450Sganbold if (desc->init != NULL) { 259245450Sganbold i = desc->init(sc); 260245450Sganbold if (i != 0) 261245450Sganbold return (i); 262245450Sganbold } 263245450Sganbold 264245450Sganbold for (i = 0; PUC_PORT_VALID(sc->sc_desc, i); i++) { 265245450Sganbold rid = sc->sc_desc.ports[i].bar; 266245450Sganbold bidx = puc_port_bar_index(sc, rid); 267245450Sganbold if (bidx < 0 || sc->sc_bar_mappings[bidx].res == NULL) 268245450Sganbold continue; 269245450Sganbold 270245450Sganbold switch (sc->sc_desc.ports[i].type & ~PUC_PORT_SUBTYPE_MASK) { 271245450Sganbold case PUC_PORT_TYPE_COM: 272245450Sganbold typestr = "sio"; 273245450Sganbold break; 274245450Sganbold case PUC_PORT_TYPE_LPT: 275245450Sganbold typestr = "ppc"; 276245450Sganbold break; 277245450Sganbold case PUC_PORT_TYPE_UART: 278245450Sganbold typestr = "uart"; 279245450Sganbold break; 280245450Sganbold default: 281245450Sganbold continue; 282245450Sganbold } 283245450Sganbold switch (sc->sc_desc.ports[i].type & PUC_PORT_SUBTYPE_MASK) { 284245450Sganbold case PUC_PORT_UART_SAB82532: 285245450Sganbold ressz = 64; 286245450Sganbold break; 287245450Sganbold case PUC_PORT_UART_Z8530: 288245450Sganbold ressz = 2; 289245450Sganbold break; 290245450Sganbold default: 291245450Sganbold ressz = 8; 292245450Sganbold break; 293245450Sganbold } 294245450Sganbold pdev = malloc(sizeof(struct puc_device), M_DEVBUF, 295245450Sganbold M_NOWAIT | M_ZERO); 296245450Sganbold if (!pdev) 297245450Sganbold continue; 298245450Sganbold resource_list_init(&pdev->resources); 299245450Sganbold 300245450Sganbold /* First fake up an IRQ resource. */ 301245450Sganbold resource_list_add(&pdev->resources, SYS_RES_IRQ, 0, 302245450Sganbold rman_get_start(sc->irqres), rman_get_end(sc->irqres), 303245450Sganbold rman_get_end(sc->irqres) - rman_get_start(sc->irqres) + 1); 304245450Sganbold rle = resource_list_find(&pdev->resources, SYS_RES_IRQ, 0); 305245450Sganbold rle->res = sc->irqres; 306245450Sganbold 307245450Sganbold /* Now fake an IOPORT or MEMORY resource */ 308245450Sganbold res = sc->sc_bar_mappings[bidx].res; 309245450Sganbold type = sc->sc_bar_mappings[bidx].type; 310245450Sganbold resource_list_add(&pdev->resources, type, 0, 311245450Sganbold rman_get_start(res) + sc->sc_desc.ports[i].offset, 312245450Sganbold rman_get_start(res) + sc->sc_desc.ports[i].offset 313245450Sganbold + ressz - 1, ressz); 314245450Sganbold rle = resource_list_find(&pdev->resources, type, 0); 315245450Sganbold 316245450Sganbold if (sc->barmuxed == 0) { 317245450Sganbold rle->res = sc->sc_bar_mappings[bidx].res; 318245450Sganbold } else { 319245450Sganbold rle->res = malloc(sizeof(struct resource), M_DEVBUF, 320245450Sganbold M_WAITOK | M_ZERO); 321245450Sganbold if (rle->res == NULL) { 322245450Sganbold free(pdev, M_DEVBUF); 323245450Sganbold return (ENOMEM); 324245450Sganbold } 325245450Sganbold 326245450Sganbold rman_set_start(rle->res, rman_get_start(res) + 327245450Sganbold sc->sc_desc.ports[i].offset); 328245450Sganbold rman_set_end(rle->res, rman_get_start(rle->res) + 329245450Sganbold ressz - 1); 330245450Sganbold rman_set_bustag(rle->res, rman_get_bustag(res)); 331245450Sganbold bus_space_subregion(rman_get_bustag(rle->res), 332245450Sganbold rman_get_bushandle(res), 333245450Sganbold sc->sc_desc.ports[i].offset, ressz, 334245450Sganbold &bh); 335245450Sganbold rman_set_bushandle(rle->res, bh); 336245450Sganbold } 337245450Sganbold 338245450Sganbold pdev->port = i + 1; 339245450Sganbold pdev->serialfreq = sc->sc_desc.ports[i].serialfreq; 340245450Sganbold pdev->subtype = sc->sc_desc.ports[i].type & 341245450Sganbold PUC_PORT_SUBTYPE_MASK; 342 pdev->regshft = sc->sc_desc.ports[i].regshft; 343 344 childunit = puc_find_free_unit(typestr); 345 if (childunit < 0 && strcmp(typestr, "uart") != 0) { 346 typestr = "uart"; 347 childunit = puc_find_free_unit(typestr); 348 } 349 sc->sc_ports[i].dev = device_add_child(dev, typestr, 350 childunit); 351 if (sc->sc_ports[i].dev == NULL) { 352 if (sc->barmuxed) { 353 bus_space_unmap(rman_get_bustag(rle->res), 354 rman_get_bushandle(rle->res), ressz); 355 free(rle->res, M_DEVBUF); 356 free(pdev, M_DEVBUF); 357 } 358 continue; 359 } 360 device_set_ivars(sc->sc_ports[i].dev, pdev); 361 device_set_desc(sc->sc_ports[i].dev, sc->sc_desc.name); 362#ifdef PUC_DEBUG 363 printf("puc: type %d, bar %x, offset %x\n", 364 sc->sc_desc.ports[i].type, 365 sc->sc_desc.ports[i].bar, 366 sc->sc_desc.ports[i].offset); 367 puc_print_resource_list(&pdev->resources); 368#endif 369 device_set_flags(sc->sc_ports[i].dev, 370 sc->sc_desc.ports[i].flags); 371 if (device_probe_and_attach(sc->sc_ports[i].dev) != 0) { 372 if (sc->barmuxed) { 373 bus_space_unmap(rman_get_bustag(rle->res), 374 rman_get_bushandle(rle->res), ressz); 375 free(rle->res, M_DEVBUF); 376 free(pdev, M_DEVBUF); 377 } 378 } 379 } 380 381#ifdef PUC_DEBUG 382 bootverbose = 0; 383#endif 384 return (0); 385} 386 387static u_int32_t 388puc_ilr_read(struct puc_softc *sc) 389{ 390 u_int32_t mask; 391 int i; 392 393 mask = 0; 394 switch (sc->sc_desc.ilr_type) { 395 case PUC_ILR_TYPE_DIGI: 396 for (i = 1; i >= 0 && sc->sc_desc.ilr_offset[i] != 0; i--) { 397 mask = (mask << 8) | (bus_space_read_1(sc->ilr_st, 398 sc->ilr_sh, sc->sc_desc.ilr_offset[i]) & 0xff); 399 } 400 break; 401 402 default: 403 mask = 0xffffffff; 404 break; 405 } 406 return (mask); 407} 408 409/* 410 * This is an interrupt handler. For boards that can't tell us which 411 * device generated the interrupt it just calls all the registered 412 * handlers sequencially, but for boards that can tell us which 413 * device(s) generated the interrupt it calls only handlers for devices 414 * that actually generated the interrupt. 415 */ 416static void 417puc_intr(void *arg) 418{ 419 int i; 420 u_int32_t ilr_mask; 421 struct puc_softc *sc; 422 423 sc = (struct puc_softc *)arg; 424 ilr_mask = sc->ilr_enabled ? puc_ilr_read(sc) : 0xffffffff; 425 for (i = 0; i < PUC_MAX_PORTS; i++) 426 if (sc->sc_ports[i].ihand != NULL && 427 ((ilr_mask >> i) & 0x00000001)) 428 (sc->sc_ports[i].ihand)(sc->sc_ports[i].ihandarg); 429} 430 431static int 432puc_find_free_unit(char *name) 433{ 434 devclass_t dc; 435 int start; 436 int unit; 437 438 unit = 0; 439 start = 0; 440 while (resource_int_value(name, unit, "port", &start) == 0 && 441 start > 0) 442 unit++; 443 dc = devclass_find(name); 444 if (dc == NULL) 445 return (-1); 446 while (devclass_get_device(dc, unit)) 447 unit++; 448#ifdef PUC_DEBUG 449 printf("puc: Using %s%d\n", name, unit); 450#endif 451 return (unit); 452} 453 454#ifdef PUC_DEBUG 455static void 456puc_print_resource_list(struct resource_list *rl) 457{ 458#if 0 459 struct resource_list_entry *rle; 460 461 printf("print_resource_list: rl %p\n", rl); 462 SLIST_FOREACH(rle, rl, link) 463 printf(" type %x, rid %x start %lx end %lx count %lx\n", 464 rle->type, rle->rid, rle->start, rle->end, rle->count); 465 printf("print_resource_list: end.\n"); 466#endif 467} 468#endif 469 470struct resource * 471puc_alloc_resource(device_t dev, device_t child, int type, int *rid, 472 u_long start, u_long end, u_long count, u_int flags) 473{ 474 struct puc_device *pdev; 475 struct resource *retval; 476 struct resource_list *rl; 477 struct resource_list_entry *rle; 478 device_t my_child; 479 480 /* 481 * in the case of a child of child we need to find our immediate child 482 */ 483 for (my_child = child; device_get_parent(my_child) != dev; 484 my_child = device_get_parent(my_child)); 485 486 pdev = device_get_ivars(my_child); 487 rl = &pdev->resources; 488 489#ifdef PUC_DEBUG 490 printf("puc_alloc_resource: pdev %p, looking for t %x, r %x\n", 491 pdev, type, *rid); 492 puc_print_resource_list(rl); 493#endif 494 retval = NULL; 495 rle = resource_list_find(rl, type, *rid); 496 if (rle) { 497#ifdef PUC_DEBUG 498 printf("found rle, %lx, %lx, %lx\n", rle->start, rle->end, 499 rle->count); 500#endif 501 retval = rle->res; 502 } 503#ifdef PUC_DEBUG 504 else 505 printf("oops rle is gone\n"); 506#endif 507 508 return (retval); 509} 510 511int 512puc_release_resource(device_t dev, device_t child, int type, int rid, 513 struct resource *res) 514{ 515 return (0); 516} 517 518int 519puc_get_resource(device_t dev, device_t child, int type, int rid, 520 u_long *startp, u_long *countp) 521{ 522 struct puc_device *pdev; 523 struct resource_list *rl; 524 struct resource_list_entry *rle; 525 526 pdev = device_get_ivars(child); 527 rl = &pdev->resources; 528 529#ifdef PUC_DEBUG 530 printf("puc_get_resource: pdev %p, looking for t %x, r %x\n", pdev, 531 type, rid); 532 puc_print_resource_list(rl); 533#endif 534 rle = resource_list_find(rl, type, rid); 535 if (rle) { 536#ifdef PUC_DEBUG 537 printf("found rle %p,", rle); 538#endif 539 if (startp != NULL) 540 *startp = rle->start; 541 if (countp != NULL) 542 *countp = rle->count; 543#ifdef PUC_DEBUG 544 printf(" %lx, %lx\n", rle->start, rle->count); 545#endif 546 return (0); 547 } else 548 printf("oops rle is gone\n"); 549 return (ENXIO); 550} 551 552int 553puc_setup_intr(device_t dev, device_t child, struct resource *r, int flags, 554 void (*ihand)(void *), void *arg, void **cookiep) 555{ 556 int i; 557 struct puc_softc *sc; 558 559 sc = (struct puc_softc *)device_get_softc(dev); 560 if ((flags & INTR_FAST) != sc->fastintr) 561 return (ENXIO); 562 for (i = 0; PUC_PORT_VALID(sc->sc_desc, i); i++) { 563 if (sc->sc_ports[i].dev == child) { 564 if (sc->sc_ports[i].ihand != 0) 565 return (ENXIO); 566 sc->sc_ports[i].ihand = ihand; 567 sc->sc_ports[i].ihandarg = arg; 568 *cookiep = arg; 569 return (0); 570 } 571 } 572 return (ENXIO); 573} 574 575int 576puc_teardown_intr(device_t dev, device_t child, struct resource *r, 577 void *cookie) 578{ 579 int i; 580 struct puc_softc *sc; 581 582 sc = (struct puc_softc *)device_get_softc(dev); 583 for (i = 0; PUC_PORT_VALID(sc->sc_desc, i); i++) { 584 if (sc->sc_ports[i].dev == child) { 585 sc->sc_ports[i].ihand = NULL; 586 sc->sc_ports[i].ihandarg = NULL; 587 return (0); 588 } 589 } 590 return (ENXIO); 591} 592 593int 594puc_read_ivar(device_t dev, device_t child, int index, uintptr_t *result) 595{ 596 struct puc_device *pdev; 597 598 pdev = device_get_ivars(child); 599 if (pdev == NULL) 600 return (ENOENT); 601 602 switch(index) { 603 case PUC_IVAR_FREQ: 604 *result = pdev->serialfreq; 605 break; 606 case PUC_IVAR_PORT: 607 *result = pdev->port; 608 break; 609 case PUC_IVAR_REGSHFT: 610 *result = pdev->regshft; 611 break; 612 case PUC_IVAR_SUBTYPE: 613 *result = pdev->subtype; 614 break; 615 default: 616 return (ENOENT); 617 } 618 return (0); 619} 620