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 #include <linux/of_address.h> 28 #include <linux/of_irq.h> 29 30 #include <asm/machdep.h> 31 #include <asm/macio.h> 32 #include <asm/pmac_feature.h> 33 #include <asm/prom.h> 34 35 #undef DEBUG 36 37 #define MAX_NODE_NAME_SIZE (20 - 12) 38 39 static struct macio_chip *macio_on_hold; 40 41 static int macio_bus_match(struct device *dev, struct device_driver *drv) 42 { 43 const struct of_device_id * matches = drv->of_match_table; 44 45 if (!matches) 46 return 0; 47 48 return of_match_device(matches, dev) != NULL; 49 } 50 51 struct macio_dev *macio_dev_get(struct macio_dev *dev) 52 { 53 struct device *tmp; 54 55 if (!dev) 56 return NULL; 57 tmp = get_device(&dev->ofdev.dev); 58 if (tmp) 59 return to_macio_device(tmp); 60 else 61 return NULL; 62 } 63 64 void macio_dev_put(struct macio_dev *dev) 65 { 66 if (dev) 67 put_device(&dev->ofdev.dev); 68 } 69 70 71 static int macio_device_probe(struct device *dev) 72 { 73 int error = -ENODEV; 74 struct macio_driver *drv; 75 struct macio_dev *macio_dev; 76 const struct of_device_id *match; 77 78 drv = to_macio_driver(dev->driver); 79 macio_dev = to_macio_device(dev); 80 81 if (!drv->probe) 82 return error; 83 84 macio_dev_get(macio_dev); 85 86 match = of_match_device(drv->driver.of_match_table, dev); 87 if (match) 88 error = drv->probe(macio_dev, match); 89 if (error) 90 macio_dev_put(macio_dev); 91 92 return error; 93 } 94 95 static int macio_device_remove(struct device *dev) 96 { 97 struct macio_dev * macio_dev = to_macio_device(dev); 98 struct macio_driver * drv = to_macio_driver(dev->driver); 99 100 if (dev->driver && drv->remove) 101 drv->remove(macio_dev); 102 macio_dev_put(macio_dev); 103 104 return 0; 105 } 106 107 static void macio_device_shutdown(struct device *dev) 108 { 109 struct macio_dev * macio_dev = to_macio_device(dev); 110 struct macio_driver * drv = to_macio_driver(dev->driver); 111 112 if (dev->driver && drv->shutdown) 113 drv->shutdown(macio_dev); 114 } 115 116 static int macio_device_suspend(struct device *dev, pm_message_t state) 117 { 118 struct macio_dev * macio_dev = to_macio_device(dev); 119 struct macio_driver * drv = to_macio_driver(dev->driver); 120 121 if (dev->driver && drv->suspend) 122 return drv->suspend(macio_dev, state); 123 return 0; 124 } 125 126 static int macio_device_resume(struct device * dev) 127 { 128 struct macio_dev * macio_dev = to_macio_device(dev); 129 struct macio_driver * drv = to_macio_driver(dev->driver); 130 131 if (dev->driver && drv->resume) 132 return drv->resume(macio_dev); 133 return 0; 134 } 135 136 extern struct device_attribute macio_dev_attrs[]; 137 138 struct bus_type macio_bus_type = { 139 .name = "macio", 140 .match = macio_bus_match, 141 .uevent = of_device_uevent_modalias, 142 .probe = macio_device_probe, 143 .remove = macio_device_remove, 144 .shutdown = macio_device_shutdown, 145 .suspend = macio_device_suspend, 146 .resume = macio_device_resume, 147 .dev_attrs = macio_dev_attrs, 148 }; 149 150 static int __init macio_bus_driver_init(void) 151 { 152 return bus_register(&macio_bus_type); 153 } 154 155 postcore_initcall(macio_bus_driver_init); 156 157 158 /** 159 * macio_release_dev - free a macio device structure when all users of it are 160 * finished. 161 * @dev: device that's been disconnected 162 * 163 * Will be called only by the device core when all users of this macio device 164 * are done. This currently means never as we don't hot remove any macio 165 * device yet, though that will happen with mediabay based devices in a later 166 * implementation. 167 */ 168 static void macio_release_dev(struct device *dev) 169 { 170 struct macio_dev *mdev; 171 172 mdev = to_macio_device(dev); 173 kfree(mdev); 174 } 175 176 /** 177 * macio_resource_quirks - tweak or skip some resources for a device 178 * @np: pointer to the device node 179 * @res: resulting resource 180 * @index: index of resource in node 181 * 182 * If this routine returns non-null, then the resource is completely 183 * skipped. 184 */ 185 static int macio_resource_quirks(struct device_node *np, struct resource *res, 186 int index) 187 { 188 /* Only quirks for memory resources for now */ 189 if ((res->flags & IORESOURCE_MEM) == 0) 190 return 0; 191 192 /* Grand Central has too large resource 0 on some machines */ 193 if (index == 0 && !strcmp(np->name, "gc")) 194 res->end = res->start + 0x1ffff; 195 196 /* Airport has bogus resource 2 */ 197 if (index >= 2 && !strcmp(np->name, "radio")) 198 return 1; 199 200 #ifndef CONFIG_PPC64 201 /* DBDMAs may have bogus sizes */ 202 if ((res->start & 0x0001f000) == 0x00008000) 203 res->end = res->start + 0xff; 204 #endif /* CONFIG_PPC64 */ 205 206 /* ESCC parent eats child resources. We could have added a 207 * level of hierarchy, but I don't really feel the need 208 * for it 209 */ 210 if (!strcmp(np->name, "escc")) 211 return 1; 212 213 /* ESCC has bogus resources >= 3 */ 214 if (index >= 3 && !(strcmp(np->name, "ch-a") && 215 strcmp(np->name, "ch-b"))) 216 return 1; 217 218 /* Media bay has too many resources, keep only first one */ 219 if (index > 0 && !strcmp(np->name, "media-bay")) 220 return 1; 221 222 /* Some older IDE resources have bogus sizes */ 223 if (!(strcmp(np->name, "IDE") && strcmp(np->name, "ATA") && 224 strcmp(np->type, "ide") && strcmp(np->type, "ata"))) { 225 if (index == 0 && (res->end - res->start) > 0xfff) 226 res->end = res->start + 0xfff; 227 if (index == 1 && (res->end - res->start) > 0xff) 228 res->end = res->start + 0xff; 229 } 230 return 0; 231 } 232 233 static void macio_create_fixup_irq(struct macio_dev *dev, int index, 234 unsigned int line) 235 { 236 unsigned int irq; 237 238 irq = irq_create_mapping(NULL, line); 239 if (irq != NO_IRQ) { 240 dev->interrupt[index].start = irq; 241 dev->interrupt[index].flags = IORESOURCE_IRQ; 242 dev->interrupt[index].name = dev_name(&dev->ofdev.dev); 243 } 244 if (dev->n_interrupts <= index) 245 dev->n_interrupts = index + 1; 246 } 247 248 static void macio_add_missing_resources(struct macio_dev *dev) 249 { 250 struct device_node *np = dev->ofdev.dev.of_node; 251 unsigned int irq_base; 252 253 /* Gatwick has some missing interrupts on child nodes */ 254 if (dev->bus->chip->type != macio_gatwick) 255 return; 256 257 /* irq_base is always 64 on gatwick. I have no cleaner way to get 258 * that value from here at this point 259 */ 260 irq_base = 64; 261 262 /* Fix SCC */ 263 if (strcmp(np->name, "ch-a") == 0) { 264 macio_create_fixup_irq(dev, 0, 15 + irq_base); 265 macio_create_fixup_irq(dev, 1, 4 + irq_base); 266 macio_create_fixup_irq(dev, 2, 5 + irq_base); 267 printk(KERN_INFO "macio: fixed SCC irqs on gatwick\n"); 268 } 269 270 /* Fix media-bay */ 271 if (strcmp(np->name, "media-bay") == 0) { 272 macio_create_fixup_irq(dev, 0, 29 + irq_base); 273 printk(KERN_INFO "macio: fixed media-bay irq on gatwick\n"); 274 } 275 276 /* Fix left media bay childs */ 277 if (dev->media_bay != NULL && strcmp(np->name, "floppy") == 0) { 278 macio_create_fixup_irq(dev, 0, 19 + irq_base); 279 macio_create_fixup_irq(dev, 1, 1 + irq_base); 280 printk(KERN_INFO "macio: fixed left floppy irqs\n"); 281 } 282 if (dev->media_bay != NULL && strcasecmp(np->name, "ata4") == 0) { 283 macio_create_fixup_irq(dev, 0, 14 + irq_base); 284 macio_create_fixup_irq(dev, 0, 3 + irq_base); 285 printk(KERN_INFO "macio: fixed left ide irqs\n"); 286 } 287 } 288 289 static void macio_setup_interrupts(struct macio_dev *dev) 290 { 291 struct device_node *np = dev->ofdev.dev.of_node; 292 unsigned int irq; 293 int i = 0, j = 0; 294 295 for (;;) { 296 struct resource *res; 297 298 if (j >= MACIO_DEV_COUNT_IRQS) 299 break; 300 res = &dev->interrupt[j]; 301 irq = irq_of_parse_and_map(np, i++); 302 if (irq == NO_IRQ) 303 break; 304 res->start = irq; 305 res->flags = IORESOURCE_IRQ; 306 res->name = dev_name(&dev->ofdev.dev); 307 if (macio_resource_quirks(np, res, i - 1)) { 308 memset(res, 0, sizeof(struct resource)); 309 continue; 310 } else 311 j++; 312 } 313 dev->n_interrupts = j; 314 } 315 316 static void macio_setup_resources(struct macio_dev *dev, 317 struct resource *parent_res) 318 { 319 struct device_node *np = dev->ofdev.dev.of_node; 320 struct resource r; 321 int index; 322 323 for (index = 0; of_address_to_resource(np, index, &r) == 0; index++) { 324 struct resource *res; 325 if (index >= MACIO_DEV_COUNT_RESOURCES) 326 break; 327 res = &dev->resource[index]; 328 *res = r; 329 res->name = dev_name(&dev->ofdev.dev); 330 331 if (macio_resource_quirks(np, res, index)) { 332 memset(res, 0, sizeof(struct resource)); 333 continue; 334 } 335 /* Currently, we consider failure as harmless, this may 336 * change in the future, once I've found all the device 337 * tree bugs in older machines & worked around them 338 */ 339 if (insert_resource(parent_res, res)) { 340 printk(KERN_WARNING "Can't request resource " 341 "%d for MacIO device %s\n", 342 index, dev_name(&dev->ofdev.dev)); 343 } 344 } 345 dev->n_resources = index; 346 } 347 348 /** 349 * macio_add_one_device - Add one device from OF node to the device tree 350 * @chip: pointer to the macio_chip holding the device 351 * @np: pointer to the device node in the OF tree 352 * @in_bay: set to 1 if device is part of a media-bay 353 * 354 * When media-bay is changed to hotswap drivers, this function will 355 * be exposed to the bay driver some way... 356 */ 357 static struct macio_dev * macio_add_one_device(struct macio_chip *chip, 358 struct device *parent, 359 struct device_node *np, 360 struct macio_dev *in_bay, 361 struct resource *parent_res) 362 { 363 struct macio_dev *dev; 364 const u32 *reg; 365 366 if (np == NULL) 367 return NULL; 368 369 dev = kzalloc(sizeof(*dev), GFP_KERNEL); 370 if (!dev) 371 return NULL; 372 373 dev->bus = &chip->lbus; 374 dev->media_bay = in_bay; 375 dev->ofdev.dev.of_node = np; 376 dev->ofdev.archdata.dma_mask = 0xffffffffUL; 377 dev->ofdev.dev.dma_mask = &dev->ofdev.archdata.dma_mask; 378 dev->ofdev.dev.parent = parent; 379 dev->ofdev.dev.bus = &macio_bus_type; 380 dev->ofdev.dev.release = macio_release_dev; 381 dev->ofdev.dev.dma_parms = &dev->dma_parms; 382 383 /* Standard DMA paremeters */ 384 dma_set_max_seg_size(&dev->ofdev.dev, 65536); 385 dma_set_seg_boundary(&dev->ofdev.dev, 0xffffffff); 386 387 #ifdef CONFIG_PCI 388 /* Set the DMA ops to the ones from the PCI device, this could be 389 * fishy if we didn't know that on PowerMac it's always direct ops 390 * or iommu ops that will work fine 391 * 392 * To get all the fields, copy all archdata 393 */ 394 dev->ofdev.dev.archdata = chip->lbus.pdev->dev.archdata; 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 } 434 435 static 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 */ 455 static 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 */ 526 int 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 */ 539 void macio_unregister_driver(struct macio_driver *drv) 540 { 541 driver_unregister(&drv->driver); 542 } 543 544 /* Managed MacIO resources */ 545 struct macio_devres { 546 u32 res_mask; 547 }; 548 549 static 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 } 561 562 int 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 } 574 575 static 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 */ 594 int 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; 611 612 err_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 */ 627 void 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 */ 651 int 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; 659 660 err_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 */ 671 672 void 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 682 683 static int 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 /* XXX Need locking ??? */ 712 if (chip->lbus.pdev == NULL) { 713 chip->lbus.pdev = pdev; 714 chip->lbus.chip = chip; 715 pci_set_drvdata(pdev, &chip->lbus); 716 pci_set_master(pdev); 717 } 718 719 printk(KERN_INFO "MacIO PCI driver attached to %s chipset\n", 720 chip->name); 721 722 /* 723 * HACK ALERT: The WallStreet PowerBook and some OHare based machines 724 * have 2 macio ASICs. I must probe the "main" one first or IDE 725 * ordering will be incorrect. So I put on "hold" the second one since 726 * it seem to appear first on PCI 727 */ 728 if (chip->type == macio_gatwick || chip->type == macio_ohareII) 729 if (macio_chips[0].lbus.pdev == NULL) { 730 macio_on_hold = chip; 731 return 0; 732 } 733 734 macio_pci_add_devices(chip); 735 if (macio_on_hold && macio_chips[0].lbus.pdev != NULL) { 736 macio_pci_add_devices(macio_on_hold); 737 macio_on_hold = NULL; 738 } 739 740 return 0; 741 } 742 743 static void macio_pci_remove(struct pci_dev* pdev) 744 { 745 panic("removing of macio-asic not supported !\n"); 746 } 747 748 /* 749 * MacIO is matched against any Apple ID, it's probe() function 750 * will then decide wether it applies or not 751 */ 752 static const struct pci_device_id pci_ids[] = { { 753 .vendor = PCI_VENDOR_ID_APPLE, 754 .device = PCI_ANY_ID, 755 .subvendor = PCI_ANY_ID, 756 .subdevice = PCI_ANY_ID, 757 758 }, { /* end: all zeroes */ } 759 }; 760 MODULE_DEVICE_TABLE (pci, pci_ids); 761 762 /* pci driver glue; this is a "new style" PCI driver module */ 763 static struct pci_driver macio_pci_driver = { 764 .name = (char *) "macio", 765 .id_table = pci_ids, 766 767 .probe = macio_pci_probe, 768 .remove = macio_pci_remove, 769 }; 770 771 #endif /* CONFIG_PCI */ 772 773 static int __init macio_module_init (void) 774 { 775 #ifdef CONFIG_PCI 776 int rc; 777 778 rc = pci_register_driver(&macio_pci_driver); 779 if (rc) 780 return rc; 781 #endif /* CONFIG_PCI */ 782 return 0; 783 } 784 785 module_init(macio_module_init); 786 787 EXPORT_SYMBOL(macio_register_driver); 788 EXPORT_SYMBOL(macio_unregister_driver); 789 EXPORT_SYMBOL(macio_dev_get); 790 EXPORT_SYMBOL(macio_dev_put); 791 EXPORT_SYMBOL(macio_request_resource); 792 EXPORT_SYMBOL(macio_release_resource); 793 EXPORT_SYMBOL(macio_request_resources); 794 EXPORT_SYMBOL(macio_release_resources); 795 EXPORT_SYMBOL(macio_enable_devres); 796 797