1/* 2 * Bus & driver management routines for devices within 3 * a MacIO ASIC. Interface to new driver model mostly 4 * stolen from the PCI version. 5 * 6 * Copyright (C) 2005 Ben. Herrenschmidt (benh@kernel.crashing.org) 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License 10 * as published by the Free Software Foundation; either version 11 * 2 of the License, or (at your option) any later version. 12 * 13 * TODO: 14 * 15 * - Don't probe below media bay by default, but instead provide 16 * some hooks for media bay to dynamically add/remove it's own 17 * sub-devices. 18 */ 19 20#include <linux/string.h> 21#include <linux/kernel.h> 22#include <linux/pci.h> 23#include <linux/pci_ids.h> 24#include <linux/init.h> 25#include <linux/module.h> 26#include <linux/slab.h> 27 28#include <asm/machdep.h> 29#include <asm/macio.h> 30#include <asm/pmac_feature.h> 31#include <asm/prom.h> 32#include <asm/pci-bridge.h> 33 34#undef DEBUG 35 36#define MAX_NODE_NAME_SIZE (20 - 12) 37 38static struct macio_chip *macio_on_hold; 39 40static int macio_bus_match(struct device *dev, struct device_driver *drv) 41{ 42 const struct of_device_id * matches = drv->of_match_table; 43 44 if (!matches) 45 return 0; 46 47 return of_match_device(matches, dev) != NULL; 48} 49 50struct macio_dev *macio_dev_get(struct macio_dev *dev) 51{ 52 struct device *tmp; 53 54 if (!dev) 55 return NULL; 56 tmp = get_device(&dev->ofdev.dev); 57 if (tmp) 58 return to_macio_device(tmp); 59 else 60 return NULL; 61} 62 63void macio_dev_put(struct macio_dev *dev) 64{ 65 if (dev) 66 put_device(&dev->ofdev.dev); 67} 68 69 70static int macio_device_probe(struct device *dev) 71{ 72 int error = -ENODEV; 73 struct macio_driver *drv; 74 struct macio_dev *macio_dev; 75 const struct of_device_id *match; 76 77 drv = to_macio_driver(dev->driver); 78 macio_dev = to_macio_device(dev); 79 80 if (!drv->probe) 81 return error; 82 83 macio_dev_get(macio_dev); 84 85 match = of_match_device(drv->driver.of_match_table, dev); 86 if (match) 87 error = drv->probe(macio_dev, match); 88 if (error) 89 macio_dev_put(macio_dev); 90 91 return error; 92} 93 94static int macio_device_remove(struct device *dev) 95{ 96 struct macio_dev * macio_dev = to_macio_device(dev); 97 struct macio_driver * drv = to_macio_driver(dev->driver); 98 99 if (dev->driver && drv->remove) 100 drv->remove(macio_dev); 101 macio_dev_put(macio_dev); 102 103 return 0; 104} 105 106static void macio_device_shutdown(struct device *dev) 107{ 108 struct macio_dev * macio_dev = to_macio_device(dev); 109 struct macio_driver * drv = to_macio_driver(dev->driver); 110 111 if (dev->driver && drv->shutdown) 112 drv->shutdown(macio_dev); 113} 114 115static int macio_device_suspend(struct device *dev, pm_message_t state) 116{ 117 struct macio_dev * macio_dev = to_macio_device(dev); 118 struct macio_driver * drv = to_macio_driver(dev->driver); 119 120 if (dev->driver && drv->suspend) 121 return drv->suspend(macio_dev, state); 122 return 0; 123} 124 125static int macio_device_resume(struct device * dev) 126{ 127 struct macio_dev * macio_dev = to_macio_device(dev); 128 struct macio_driver * drv = to_macio_driver(dev->driver); 129 130 if (dev->driver && drv->resume) 131 return drv->resume(macio_dev); 132 return 0; 133} 134 135extern struct device_attribute macio_dev_attrs[]; 136 137struct bus_type macio_bus_type = { 138 .name = "macio", 139 .match = macio_bus_match, 140 .uevent = of_device_uevent, 141 .probe = macio_device_probe, 142 .remove = macio_device_remove, 143 .shutdown = macio_device_shutdown, 144 .suspend = macio_device_suspend, 145 .resume = macio_device_resume, 146 .dev_attrs = macio_dev_attrs, 147}; 148 149static int __init macio_bus_driver_init(void) 150{ 151 return bus_register(&macio_bus_type); 152} 153 154postcore_initcall(macio_bus_driver_init); 155 156 157/** 158 * macio_release_dev - free a macio device structure when all users of it are 159 * finished. 160 * @dev: device that's been disconnected 161 * 162 * Will be called only by the device core when all users of this macio device 163 * are done. This currently means never as we don't hot remove any macio 164 * device yet, though that will happen with mediabay based devices in a later 165 * implementation. 166 */ 167static void macio_release_dev(struct device *dev) 168{ 169 struct macio_dev *mdev; 170 171 mdev = to_macio_device(dev); 172 kfree(mdev); 173} 174 175/** 176 * macio_resource_quirks - tweak or skip some resources for a device 177 * @np: pointer to the device node 178 * @res: resulting resource 179 * @index: index of resource in node 180 * 181 * If this routine returns non-null, then the resource is completely 182 * skipped. 183 */ 184static int macio_resource_quirks(struct device_node *np, struct resource *res, 185 int index) 186{ 187 /* Only quirks for memory resources for now */ 188 if ((res->flags & IORESOURCE_MEM) == 0) 189 return 0; 190 191 /* Grand Central has too large resource 0 on some machines */ 192 if (index == 0 && !strcmp(np->name, "gc")) 193 res->end = res->start + 0x1ffff; 194 195 /* Airport has bogus resource 2 */ 196 if (index >= 2 && !strcmp(np->name, "radio")) 197 return 1; 198 199#ifndef CONFIG_PPC64 200 /* DBDMAs may have bogus sizes */ 201 if ((res->start & 0x0001f000) == 0x00008000) 202 res->end = res->start + 0xff; 203#endif /* CONFIG_PPC64 */ 204 205 /* ESCC parent eats child resources. We could have added a 206 * level of hierarchy, but I don't really feel the need 207 * for it 208 */ 209 if (!strcmp(np->name, "escc")) 210 return 1; 211 212 /* ESCC has bogus resources >= 3 */ 213 if (index >= 3 && !(strcmp(np->name, "ch-a") && 214 strcmp(np->name, "ch-b"))) 215 return 1; 216 217 /* Media bay has too many resources, keep only first one */ 218 if (index > 0 && !strcmp(np->name, "media-bay")) 219 return 1; 220 221 /* Some older IDE resources have bogus sizes */ 222 if (!(strcmp(np->name, "IDE") && strcmp(np->name, "ATA") && 223 strcmp(np->type, "ide") && strcmp(np->type, "ata"))) { 224 if (index == 0 && (res->end - res->start) > 0xfff) 225 res->end = res->start + 0xfff; 226 if (index == 1 && (res->end - res->start) > 0xff) 227 res->end = res->start + 0xff; 228 } 229 return 0; 230} 231 232static void macio_create_fixup_irq(struct macio_dev *dev, int index, 233 unsigned int line) 234{ 235 unsigned int irq; 236 237 irq = irq_create_mapping(NULL, line); 238 if (irq != NO_IRQ) { 239 dev->interrupt[index].start = irq; 240 dev->interrupt[index].flags = IORESOURCE_IRQ; 241 dev->interrupt[index].name = dev_name(&dev->ofdev.dev); 242 } 243 if (dev->n_interrupts <= index) 244 dev->n_interrupts = index + 1; 245} 246 247static void macio_add_missing_resources(struct macio_dev *dev) 248{ 249 struct device_node *np = dev->ofdev.dev.of_node; 250 unsigned int irq_base; 251 252 /* Gatwick has some missing interrupts on child nodes */ 253 if (dev->bus->chip->type != macio_gatwick) 254 return; 255 256 /* irq_base is always 64 on gatwick. I have no cleaner way to get 257 * that value from here at this point 258 */ 259 irq_base = 64; 260 261 /* Fix SCC */ 262 if (strcmp(np->name, "ch-a") == 0) { 263 macio_create_fixup_irq(dev, 0, 15 + irq_base); 264 macio_create_fixup_irq(dev, 1, 4 + irq_base); 265 macio_create_fixup_irq(dev, 2, 5 + irq_base); 266 printk(KERN_INFO "macio: fixed SCC irqs on gatwick\n"); 267 } 268 269 /* Fix media-bay */ 270 if (strcmp(np->name, "media-bay") == 0) { 271 macio_create_fixup_irq(dev, 0, 29 + irq_base); 272 printk(KERN_INFO "macio: fixed media-bay irq on gatwick\n"); 273 } 274 275 /* Fix left media bay childs */ 276 if (dev->media_bay != NULL && strcmp(np->name, "floppy") == 0) { 277 macio_create_fixup_irq(dev, 0, 19 + irq_base); 278 macio_create_fixup_irq(dev, 1, 1 + irq_base); 279 printk(KERN_INFO "macio: fixed left floppy irqs\n"); 280 } 281 if (dev->media_bay != NULL && strcasecmp(np->name, "ata4") == 0) { 282 macio_create_fixup_irq(dev, 0, 14 + irq_base); 283 macio_create_fixup_irq(dev, 0, 3 + irq_base); 284 printk(KERN_INFO "macio: fixed left ide irqs\n"); 285 } 286} 287 288static void macio_setup_interrupts(struct macio_dev *dev) 289{ 290 struct device_node *np = dev->ofdev.dev.of_node; 291 unsigned int irq; 292 int i = 0, j = 0; 293 294 for (;;) { 295 struct resource *res; 296 297 if (j >= MACIO_DEV_COUNT_IRQS) 298 break; 299 res = &dev->interrupt[j]; 300 irq = irq_of_parse_and_map(np, i++); 301 if (irq == NO_IRQ) 302 break; 303 res->start = irq; 304 res->flags = IORESOURCE_IRQ; 305 res->name = dev_name(&dev->ofdev.dev); 306 if (macio_resource_quirks(np, res, i - 1)) { 307 memset(res, 0, sizeof(struct resource)); 308 continue; 309 } else 310 j++; 311 } 312 dev->n_interrupts = j; 313} 314 315static void macio_setup_resources(struct macio_dev *dev, 316 struct resource *parent_res) 317{ 318 struct device_node *np = dev->ofdev.dev.of_node; 319 struct resource r; 320 int index; 321 322 for (index = 0; of_address_to_resource(np, index, &r) == 0; index++) { 323 struct resource *res; 324 if (index >= MACIO_DEV_COUNT_RESOURCES) 325 break; 326 res = &dev->resource[index]; 327 *res = r; 328 res->name = dev_name(&dev->ofdev.dev); 329 330 if (macio_resource_quirks(np, res, index)) { 331 memset(res, 0, sizeof(struct resource)); 332 continue; 333 } 334 /* Currently, we consider failure as harmless, this may 335 * change in the future, once I've found all the device 336 * tree bugs in older machines & worked around them 337 */ 338 if (insert_resource(parent_res, res)) { 339 printk(KERN_WARNING "Can't request resource " 340 "%d for MacIO device %s\n", 341 index, dev_name(&dev->ofdev.dev)); 342 } 343 } 344 dev->n_resources = index; 345} 346 347/** 348 * macio_add_one_device - Add one device from OF node to the device tree 349 * @chip: pointer to the macio_chip holding the device 350 * @np: pointer to the device node in the OF tree 351 * @in_bay: set to 1 if device is part of a media-bay 352 * 353 * When media-bay is changed to hotswap drivers, this function will 354 * be exposed to the bay driver some way... 355 */ 356static struct macio_dev * macio_add_one_device(struct macio_chip *chip, 357 struct device *parent, 358 struct device_node *np, 359 struct macio_dev *in_bay, 360 struct resource *parent_res) 361{ 362 struct macio_dev *dev; 363 const u32 *reg; 364 365 if (np == NULL) 366 return NULL; 367 368 dev = kzalloc(sizeof(*dev), GFP_KERNEL); 369 if (!dev) 370 return NULL; 371 372 dev->bus = &chip->lbus; 373 dev->media_bay = in_bay; 374 dev->ofdev.dev.of_node = np; 375 dev->ofdev.archdata.dma_mask = 0xffffffffUL; 376 dev->ofdev.dev.dma_mask = &dev->ofdev.archdata.dma_mask; 377 dev->ofdev.dev.parent = parent; 378 dev->ofdev.dev.bus = &macio_bus_type; 379 dev->ofdev.dev.release = macio_release_dev; 380 dev->ofdev.dev.dma_parms = &dev->dma_parms; 381 382 /* Standard DMA paremeters */ 383 dma_set_max_seg_size(&dev->ofdev.dev, 65536); 384 dma_set_seg_boundary(&dev->ofdev.dev, 0xffffffff); 385 386#ifdef CONFIG_PCI 387 /* Set the DMA ops to the ones from the PCI device, this could be 388 * fishy if we didn't know that on PowerMac it's always direct ops 389 * or iommu ops that will work fine 390 */ 391 dev->ofdev.dev.archdata.dma_ops = 392 chip->lbus.pdev->dev.archdata.dma_ops; 393 dev->ofdev.dev.archdata.dma_data = 394 chip->lbus.pdev->dev.archdata.dma_data; 395#endif /* CONFIG_PCI */ 396 397#ifdef DEBUG 398 printk("preparing mdev @%p, ofdev @%p, dev @%p, kobj @%p\n", 399 dev, &dev->ofdev, &dev->ofdev.dev, &dev->ofdev.dev.kobj); 400#endif 401 402 /* MacIO itself has a different reg, we use it's PCI base */ 403 if (np == chip->of_node) { 404 dev_set_name(&dev->ofdev.dev, "%1d.%08x:%.*s", 405 chip->lbus.index, 406#ifdef CONFIG_PCI 407 (unsigned int)pci_resource_start(chip->lbus.pdev, 0), 408#else 409 0, /* NuBus may want to do something better here */ 410#endif 411 MAX_NODE_NAME_SIZE, np->name); 412 } else { 413 reg = of_get_property(np, "reg", NULL); 414 dev_set_name(&dev->ofdev.dev, "%1d.%08x:%.*s", 415 chip->lbus.index, 416 reg ? *reg : 0, MAX_NODE_NAME_SIZE, np->name); 417 } 418 419 /* Setup interrupts & resources */ 420 macio_setup_interrupts(dev); 421 macio_setup_resources(dev, parent_res); 422 macio_add_missing_resources(dev); 423 424 /* Register with core */ 425 if (of_device_register(&dev->ofdev) != 0) { 426 printk(KERN_DEBUG"macio: device registration error for %s!\n", 427 dev_name(&dev->ofdev.dev)); 428 kfree(dev); 429 return NULL; 430 } 431 432 return dev; 433} 434 435static int macio_skip_device(struct device_node *np) 436{ 437 if (strncmp(np->name, "battery", 7) == 0) 438 return 1; 439 if (strncmp(np->name, "escc-legacy", 11) == 0) 440 return 1; 441 return 0; 442} 443 444/** 445 * macio_pci_add_devices - Adds sub-devices of mac-io to the device tree 446 * @chip: pointer to the macio_chip holding the devices 447 * 448 * This function will do the job of extracting devices from the 449 * Open Firmware device tree, build macio_dev structures and add 450 * them to the Linux device tree. 451 * 452 * For now, childs of media-bay are added now as well. This will 453 * change rsn though. 454 */ 455static void macio_pci_add_devices(struct macio_chip *chip) 456{ 457 struct device_node *np, *pnode; 458 struct macio_dev *rdev, *mdev, *mbdev = NULL, *sdev = NULL; 459 struct device *parent = NULL; 460 struct resource *root_res = &iomem_resource; 461 462 /* Add a node for the macio bus itself */ 463#ifdef CONFIG_PCI 464 if (chip->lbus.pdev) { 465 parent = &chip->lbus.pdev->dev; 466 root_res = &chip->lbus.pdev->resource[0]; 467 } 468#endif 469 pnode = of_node_get(chip->of_node); 470 if (pnode == NULL) 471 return; 472 473 /* Add macio itself to hierarchy */ 474 rdev = macio_add_one_device(chip, parent, pnode, NULL, root_res); 475 if (rdev == NULL) 476 return; 477 root_res = &rdev->resource[0]; 478 479 /* First scan 1st level */ 480 for (np = NULL; (np = of_get_next_child(pnode, np)) != NULL;) { 481 if (macio_skip_device(np)) 482 continue; 483 of_node_get(np); 484 mdev = macio_add_one_device(chip, &rdev->ofdev.dev, np, NULL, 485 root_res); 486 if (mdev == NULL) 487 of_node_put(np); 488 else if (strncmp(np->name, "media-bay", 9) == 0) 489 mbdev = mdev; 490 else if (strncmp(np->name, "escc", 4) == 0) 491 sdev = mdev; 492 } 493 494 /* Add media bay devices if any */ 495 if (mbdev) { 496 pnode = mbdev->ofdev.dev.of_node; 497 for (np = NULL; (np = of_get_next_child(pnode, np)) != NULL;) { 498 if (macio_skip_device(np)) 499 continue; 500 of_node_get(np); 501 if (macio_add_one_device(chip, &mbdev->ofdev.dev, np, 502 mbdev, root_res) == NULL) 503 of_node_put(np); 504 } 505 } 506 507 /* Add serial ports if any */ 508 if (sdev) { 509 pnode = sdev->ofdev.dev.of_node; 510 for (np = NULL; (np = of_get_next_child(pnode, np)) != NULL;) { 511 if (macio_skip_device(np)) 512 continue; 513 of_node_get(np); 514 if (macio_add_one_device(chip, &sdev->ofdev.dev, np, 515 NULL, root_res) == NULL) 516 of_node_put(np); 517 } 518 } 519} 520 521 522/** 523 * macio_register_driver - Registers a new MacIO device driver 524 * @drv: pointer to the driver definition structure 525 */ 526int macio_register_driver(struct macio_driver *drv) 527{ 528 /* initialize common driver fields */ 529 drv->driver.bus = &macio_bus_type; 530 531 /* register with core */ 532 return driver_register(&drv->driver); 533} 534 535/** 536 * macio_unregister_driver - Unregisters a new MacIO device driver 537 * @drv: pointer to the driver definition structure 538 */ 539void macio_unregister_driver(struct macio_driver *drv) 540{ 541 driver_unregister(&drv->driver); 542} 543 544/* Managed MacIO resources */ 545struct macio_devres { 546 u32 res_mask; 547}; 548 549static void maciom_release(struct device *gendev, void *res) 550{ 551 struct macio_dev *dev = to_macio_device(gendev); 552 struct macio_devres *dr = res; 553 int i, max; 554 555 max = min(dev->n_resources, 32); 556 for (i = 0; i < max; i++) { 557 if (dr->res_mask & (1 << i)) 558 macio_release_resource(dev, i); 559 } 560} 561 562int macio_enable_devres(struct macio_dev *dev) 563{ 564 struct macio_devres *dr; 565 566 dr = devres_find(&dev->ofdev.dev, maciom_release, NULL, NULL); 567 if (!dr) { 568 dr = devres_alloc(maciom_release, sizeof(*dr), GFP_KERNEL); 569 if (!dr) 570 return -ENOMEM; 571 } 572 return devres_get(&dev->ofdev.dev, dr, NULL, NULL) != NULL; 573} 574 575static struct macio_devres * find_macio_dr(struct macio_dev *dev) 576{ 577 return devres_find(&dev->ofdev.dev, maciom_release, NULL, NULL); 578} 579 580/** 581 * macio_request_resource - Request an MMIO resource 582 * @dev: pointer to the device holding the resource 583 * @resource_no: resource number to request 584 * @name: resource name 585 * 586 * Mark memory region number @resource_no associated with MacIO 587 * device @dev as being reserved by owner @name. Do not access 588 * any address inside the memory regions unless this call returns 589 * successfully. 590 * 591 * Returns 0 on success, or %EBUSY on error. A warning 592 * message is also printed on failure. 593 */ 594int macio_request_resource(struct macio_dev *dev, int resource_no, 595 const char *name) 596{ 597 struct macio_devres *dr = find_macio_dr(dev); 598 599 if (macio_resource_len(dev, resource_no) == 0) 600 return 0; 601 602 if (!request_mem_region(macio_resource_start(dev, resource_no), 603 macio_resource_len(dev, resource_no), 604 name)) 605 goto err_out; 606 607 if (dr && resource_no < 32) 608 dr->res_mask |= 1 << resource_no; 609 610 return 0; 611 612err_out: 613 printk (KERN_WARNING "MacIO: Unable to reserve resource #%d:%lx@%lx" 614 " for device %s\n", 615 resource_no, 616 macio_resource_len(dev, resource_no), 617 macio_resource_start(dev, resource_no), 618 dev_name(&dev->ofdev.dev)); 619 return -EBUSY; 620} 621 622/** 623 * macio_release_resource - Release an MMIO resource 624 * @dev: pointer to the device holding the resource 625 * @resource_no: resource number to release 626 */ 627void macio_release_resource(struct macio_dev *dev, int resource_no) 628{ 629 struct macio_devres *dr = find_macio_dr(dev); 630 631 if (macio_resource_len(dev, resource_no) == 0) 632 return; 633 release_mem_region(macio_resource_start(dev, resource_no), 634 macio_resource_len(dev, resource_no)); 635 if (dr && resource_no < 32) 636 dr->res_mask &= ~(1 << resource_no); 637} 638 639/** 640 * macio_request_resources - Reserve all memory resources 641 * @dev: MacIO device whose resources are to be reserved 642 * @name: Name to be associated with resource. 643 * 644 * Mark all memory regions associated with MacIO device @dev as 645 * being reserved by owner @name. Do not access any address inside 646 * the memory regions unless this call returns successfully. 647 * 648 * Returns 0 on success, or %EBUSY on error. A warning 649 * message is also printed on failure. 650 */ 651int macio_request_resources(struct macio_dev *dev, const char *name) 652{ 653 int i; 654 655 for (i = 0; i < dev->n_resources; i++) 656 if (macio_request_resource(dev, i, name)) 657 goto err_out; 658 return 0; 659 660err_out: 661 while(--i >= 0) 662 macio_release_resource(dev, i); 663 664 return -EBUSY; 665} 666 667/** 668 * macio_release_resources - Release reserved memory resources 669 * @dev: MacIO device whose resources were previously reserved 670 */ 671 672void macio_release_resources(struct macio_dev *dev) 673{ 674 int i; 675 676 for (i = 0; i < dev->n_resources; i++) 677 macio_release_resource(dev, i); 678} 679 680 681#ifdef CONFIG_PCI 682 683static int __devinit macio_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 684{ 685 struct device_node* np; 686 struct macio_chip* chip; 687 688 if (ent->vendor != PCI_VENDOR_ID_APPLE) 689 return -ENODEV; 690 691 /* Note regarding refcounting: We assume pci_device_to_OF_node() is 692 * ported to new OF APIs and returns a node with refcount incremented. 693 */ 694 np = pci_device_to_OF_node(pdev); 695 if (np == NULL) 696 return -ENODEV; 697 698 /* The above assumption is wrong !!! 699 * fix that here for now until I fix the arch code 700 */ 701 of_node_get(np); 702 703 /* We also assume that pmac_feature will have done a get() on nodes 704 * stored in the macio chips array 705 */ 706 chip = macio_find(np, macio_unknown); 707 of_node_put(np); 708 if (chip == NULL) 709 return -ENODEV; 710 711 if (chip->lbus.pdev == NULL) { 712 chip->lbus.pdev = pdev; 713 chip->lbus.chip = chip; 714 pci_set_drvdata(pdev, &chip->lbus); 715 pci_set_master(pdev); 716 } 717 718 printk(KERN_INFO "MacIO PCI driver attached to %s chipset\n", 719 chip->name); 720 721 /* 722 * HACK ALERT: The WallStreet PowerBook and some OHare based machines 723 * have 2 macio ASICs. I must probe the "main" one first or IDE 724 * ordering will be incorrect. So I put on "hold" the second one since 725 * it seem to appear first on PCI 726 */ 727 if (chip->type == macio_gatwick || chip->type == macio_ohareII) 728 if (macio_chips[0].lbus.pdev == NULL) { 729 macio_on_hold = chip; 730 return 0; 731 } 732 733 macio_pci_add_devices(chip); 734 if (macio_on_hold && macio_chips[0].lbus.pdev != NULL) { 735 macio_pci_add_devices(macio_on_hold); 736 macio_on_hold = NULL; 737 } 738 739 return 0; 740} 741 742static void __devexit macio_pci_remove(struct pci_dev* pdev) 743{ 744 panic("removing of macio-asic not supported !\n"); 745} 746 747/* 748 * MacIO is matched against any Apple ID, it's probe() function 749 * will then decide wether it applies or not 750 */ 751static const struct pci_device_id __devinitdata pci_ids [] = { { 752 .vendor = PCI_VENDOR_ID_APPLE, 753 .device = PCI_ANY_ID, 754 .subvendor = PCI_ANY_ID, 755 .subdevice = PCI_ANY_ID, 756 757 }, { /* end: all zeroes */ } 758}; 759MODULE_DEVICE_TABLE (pci, pci_ids); 760 761/* pci driver glue; this is a "new style" PCI driver module */ 762static struct pci_driver macio_pci_driver = { 763 .name = (char *) "macio", 764 .id_table = pci_ids, 765 766 .probe = macio_pci_probe, 767 .remove = macio_pci_remove, 768}; 769 770#endif /* CONFIG_PCI */ 771 772static int __init macio_module_init (void) 773{ 774#ifdef CONFIG_PCI 775 int rc; 776 777 rc = pci_register_driver(&macio_pci_driver); 778 if (rc) 779 return rc; 780#endif /* CONFIG_PCI */ 781 return 0; 782} 783 784module_init(macio_module_init); 785 786EXPORT_SYMBOL(macio_register_driver); 787EXPORT_SYMBOL(macio_unregister_driver); 788EXPORT_SYMBOL(macio_dev_get); 789EXPORT_SYMBOL(macio_dev_put); 790EXPORT_SYMBOL(macio_request_resource); 791EXPORT_SYMBOL(macio_release_resource); 792EXPORT_SYMBOL(macio_request_resources); 793EXPORT_SYMBOL(macio_release_resources); 794EXPORT_SYMBOL(macio_enable_devres); 795