Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * drivers/pci/pci-driver.c | |
3 | * | |
4 | */ | |
5 | ||
6 | #include <linux/pci.h> | |
7 | #include <linux/module.h> | |
8 | #include <linux/init.h> | |
9 | #include <linux/device.h> | |
d42c6997 | 10 | #include <linux/mempolicy.h> |
4e57b681 TS |
11 | #include <linux/string.h> |
12 | #include <linux/slab.h> | |
8c65b4a6 | 13 | #include <linux/sched.h> |
1da177e4 LT |
14 | #include "pci.h" |
15 | ||
1da177e4 LT |
16 | /* |
17 | * Dynamic device IDs are disabled for !CONFIG_HOTPLUG | |
18 | */ | |
19 | ||
75865858 GKH |
20 | struct pci_dynid { |
21 | struct list_head node; | |
22 | struct pci_device_id id; | |
23 | }; | |
1da177e4 | 24 | |
3d3c2ae1 GKH |
25 | #ifdef CONFIG_HOTPLUG |
26 | ||
1da177e4 | 27 | /** |
8f7020d3 RD |
28 | * store_new_id - add a new PCI device ID to this driver and re-probe devices |
29 | * @driver: target device driver | |
30 | * @buf: buffer for scanning device ID data | |
31 | * @count: input size | |
1da177e4 LT |
32 | * |
33 | * Adds a new dynamic pci device ID to this driver, | |
34 | * and causes the driver to probe for all devices again. | |
35 | */ | |
f8eb1005 | 36 | static ssize_t |
1da177e4 LT |
37 | store_new_id(struct device_driver *driver, const char *buf, size_t count) |
38 | { | |
75865858 | 39 | struct pci_dynid *dynid; |
1da177e4 | 40 | struct pci_driver *pdrv = to_pci_driver(driver); |
6ba18636 | 41 | __u32 vendor, device, subvendor=PCI_ANY_ID, |
1da177e4 LT |
42 | subdevice=PCI_ANY_ID, class=0, class_mask=0; |
43 | unsigned long driver_data=0; | |
44 | int fields=0; | |
b19441af | 45 | int retval = 0; |
1da177e4 LT |
46 | |
47 | fields = sscanf(buf, "%x %x %x %x %x %x %lux", | |
48 | &vendor, &device, &subvendor, &subdevice, | |
49 | &class, &class_mask, &driver_data); | |
6ba18636 | 50 | if (fields < 2) |
1da177e4 LT |
51 | return -EINVAL; |
52 | ||
f5afe806 | 53 | dynid = kzalloc(sizeof(*dynid), GFP_KERNEL); |
1da177e4 LT |
54 | if (!dynid) |
55 | return -ENOMEM; | |
56 | ||
1da177e4 LT |
57 | dynid->id.vendor = vendor; |
58 | dynid->id.device = device; | |
59 | dynid->id.subvendor = subvendor; | |
60 | dynid->id.subdevice = subdevice; | |
61 | dynid->id.class = class; | |
62 | dynid->id.class_mask = class_mask; | |
63 | dynid->id.driver_data = pdrv->dynids.use_driver_data ? | |
64 | driver_data : 0UL; | |
65 | ||
66 | spin_lock(&pdrv->dynids.lock); | |
a56bc69a | 67 | list_add_tail(&dynid->node, &pdrv->dynids.list); |
1da177e4 LT |
68 | spin_unlock(&pdrv->dynids.lock); |
69 | ||
75865858 | 70 | if (get_driver(&pdrv->driver)) { |
b19441af | 71 | retval = driver_attach(&pdrv->driver); |
75865858 | 72 | put_driver(&pdrv->driver); |
1da177e4 LT |
73 | } |
74 | ||
b19441af GKH |
75 | if (retval) |
76 | return retval; | |
1da177e4 LT |
77 | return count; |
78 | } | |
1da177e4 | 79 | static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id); |
1da177e4 LT |
80 | |
81 | static void | |
82 | pci_free_dynids(struct pci_driver *drv) | |
83 | { | |
75865858 | 84 | struct pci_dynid *dynid, *n; |
1da177e4 LT |
85 | |
86 | spin_lock(&drv->dynids.lock); | |
75865858 | 87 | list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) { |
1da177e4 LT |
88 | list_del(&dynid->node); |
89 | kfree(dynid); | |
90 | } | |
91 | spin_unlock(&drv->dynids.lock); | |
92 | } | |
93 | ||
94 | static int | |
95 | pci_create_newid_file(struct pci_driver *drv) | |
96 | { | |
97 | int error = 0; | |
98 | if (drv->probe != NULL) | |
99 | error = sysfs_create_file(&drv->driver.kobj, | |
100 | &driver_attr_new_id.attr); | |
101 | return error; | |
102 | } | |
103 | ||
1da177e4 | 104 | #else /* !CONFIG_HOTPLUG */ |
1da177e4 LT |
105 | static inline void pci_free_dynids(struct pci_driver *drv) {} |
106 | static inline int pci_create_newid_file(struct pci_driver *drv) | |
107 | { | |
108 | return 0; | |
109 | } | |
1da177e4 LT |
110 | #endif |
111 | ||
112 | /** | |
75865858 | 113 | * pci_match_id - See if a pci device matches a given pci_id table |
1da177e4 | 114 | * @ids: array of PCI device id structures to search in |
75865858 GKH |
115 | * @dev: the PCI device structure to match against. |
116 | * | |
1da177e4 | 117 | * Used by a driver to check whether a PCI device present in the |
75865858 | 118 | * system is in its list of supported devices. Returns the matching |
1da177e4 | 119 | * pci_device_id structure or %NULL if there is no match. |
75865858 | 120 | * |
8b60756a | 121 | * Deprecated, don't use this as it will not catch any dynamic ids |
75865858 | 122 | * that a driver might want to check for. |
1da177e4 | 123 | */ |
75865858 GKH |
124 | const struct pci_device_id *pci_match_id(const struct pci_device_id *ids, |
125 | struct pci_dev *dev) | |
1da177e4 | 126 | { |
75865858 GKH |
127 | if (ids) { |
128 | while (ids->vendor || ids->subvendor || ids->class_mask) { | |
129 | if (pci_match_one_device(ids, dev)) | |
130 | return ids; | |
131 | ids++; | |
132 | } | |
1da177e4 LT |
133 | } |
134 | return NULL; | |
135 | } | |
136 | ||
137 | /** | |
ae9608af | 138 | * pci_match_device - Tell if a PCI device structure has a matching PCI device id structure |
75865858 | 139 | * @drv: the PCI driver to match against |
39ba487f | 140 | * @dev: the PCI device structure to match against |
75865858 GKH |
141 | * |
142 | * Used by a driver to check whether a PCI device present in the | |
143 | * system is in its list of supported devices. Returns the matching | |
144 | * pci_device_id structure or %NULL if there is no match. | |
1da177e4 | 145 | */ |
d73460d7 AB |
146 | static const struct pci_device_id *pci_match_device(struct pci_driver *drv, |
147 | struct pci_dev *dev) | |
75865858 | 148 | { |
75865858 | 149 | struct pci_dynid *dynid; |
1da177e4 | 150 | |
7461b60a | 151 | /* Look at the dynamic ids first, before the static ones */ |
75865858 GKH |
152 | spin_lock(&drv->dynids.lock); |
153 | list_for_each_entry(dynid, &drv->dynids.list, node) { | |
154 | if (pci_match_one_device(&dynid->id, dev)) { | |
155 | spin_unlock(&drv->dynids.lock); | |
156 | return &dynid->id; | |
157 | } | |
1da177e4 | 158 | } |
75865858 | 159 | spin_unlock(&drv->dynids.lock); |
7461b60a RK |
160 | |
161 | return pci_match_id(drv->id_table, dev); | |
1da177e4 LT |
162 | } |
163 | ||
d42c6997 AK |
164 | static int pci_call_probe(struct pci_driver *drv, struct pci_dev *dev, |
165 | const struct pci_device_id *id) | |
166 | { | |
167 | int error; | |
168 | #ifdef CONFIG_NUMA | |
169 | /* Execute driver initialization on node where the | |
170 | device's bus is attached to. This way the driver likely | |
171 | allocates its local memory on the right node without | |
172 | any need to change it. */ | |
173 | struct mempolicy *oldpol; | |
174 | cpumask_t oldmask = current->cpus_allowed; | |
175 | int node = pcibus_to_node(dev->bus); | |
176 | if (node >= 0 && node_online(node)) | |
177 | set_cpus_allowed(current, node_to_cpumask(node)); | |
178 | /* And set default memory allocation policy */ | |
179 | oldpol = current->mempolicy; | |
180 | current->mempolicy = &default_policy; | |
181 | mpol_get(current->mempolicy); | |
182 | #endif | |
183 | error = drv->probe(dev, id); | |
184 | #ifdef CONFIG_NUMA | |
185 | set_cpus_allowed(current, oldmask); | |
186 | mpol_free(current->mempolicy); | |
187 | current->mempolicy = oldpol; | |
188 | #endif | |
189 | return error; | |
190 | } | |
191 | ||
1da177e4 LT |
192 | /** |
193 | * __pci_device_probe() | |
8f7020d3 RD |
194 | * @drv: driver to call to check if it wants the PCI device |
195 | * @pci_dev: PCI device being probed | |
1da177e4 | 196 | * |
8f7020d3 | 197 | * returns 0 on success, else error. |
1da177e4 LT |
198 | * side-effect: pci_dev->driver is set to drv when drv claims pci_dev. |
199 | */ | |
200 | static int | |
201 | __pci_device_probe(struct pci_driver *drv, struct pci_dev *pci_dev) | |
75865858 GKH |
202 | { |
203 | const struct pci_device_id *id; | |
1da177e4 LT |
204 | int error = 0; |
205 | ||
206 | if (!pci_dev->driver && drv->probe) { | |
75865858 GKH |
207 | error = -ENODEV; |
208 | ||
209 | id = pci_match_device(drv, pci_dev); | |
210 | if (id) | |
d42c6997 | 211 | error = pci_call_probe(drv, pci_dev, id); |
75865858 GKH |
212 | if (error >= 0) { |
213 | pci_dev->driver = drv; | |
214 | error = 0; | |
215 | } | |
1da177e4 LT |
216 | } |
217 | return error; | |
218 | } | |
219 | ||
220 | static int pci_device_probe(struct device * dev) | |
221 | { | |
222 | int error = 0; | |
223 | struct pci_driver *drv; | |
224 | struct pci_dev *pci_dev; | |
225 | ||
226 | drv = to_pci_driver(dev->driver); | |
227 | pci_dev = to_pci_dev(dev); | |
228 | pci_dev_get(pci_dev); | |
229 | error = __pci_device_probe(drv, pci_dev); | |
230 | if (error) | |
231 | pci_dev_put(pci_dev); | |
232 | ||
233 | return error; | |
234 | } | |
235 | ||
236 | static int pci_device_remove(struct device * dev) | |
237 | { | |
238 | struct pci_dev * pci_dev = to_pci_dev(dev); | |
239 | struct pci_driver * drv = pci_dev->driver; | |
240 | ||
241 | if (drv) { | |
242 | if (drv->remove) | |
243 | drv->remove(pci_dev); | |
244 | pci_dev->driver = NULL; | |
245 | } | |
246 | ||
2449e06a SL |
247 | /* |
248 | * If the device is still on, set the power state as "unknown", | |
249 | * since it might change by the next time we load the driver. | |
250 | */ | |
251 | if (pci_dev->current_state == PCI_D0) | |
252 | pci_dev->current_state = PCI_UNKNOWN; | |
253 | ||
1da177e4 LT |
254 | /* |
255 | * We would love to complain here if pci_dev->is_enabled is set, that | |
256 | * the driver should have called pci_disable_device(), but the | |
257 | * unfortunate fact is there are too many odd BIOS and bridge setups | |
258 | * that don't like drivers doing that all of the time. | |
259 | * Oh well, we can dream of sane hardware when we sleep, no matter how | |
260 | * horrible the crap we have to deal with is when we are awake... | |
261 | */ | |
262 | ||
263 | pci_dev_put(pci_dev); | |
264 | return 0; | |
265 | } | |
266 | ||
267 | static int pci_device_suspend(struct device * dev, pm_message_t state) | |
268 | { | |
269 | struct pci_dev * pci_dev = to_pci_dev(dev); | |
270 | struct pci_driver * drv = pci_dev->driver; | |
271 | int i = 0; | |
272 | ||
02669492 | 273 | if (drv && drv->suspend) { |
1da177e4 | 274 | i = drv->suspend(pci_dev, state); |
02669492 AM |
275 | suspend_report_result(drv->suspend, i); |
276 | } else { | |
1da177e4 | 277 | pci_save_state(pci_dev); |
2449e06a SL |
278 | /* |
279 | * mark its power state as "unknown", since we don't know if | |
280 | * e.g. the BIOS will change its device state when we suspend. | |
281 | */ | |
282 | if (pci_dev->current_state == PCI_D0) | |
283 | pci_dev->current_state = PCI_UNKNOWN; | |
02669492 | 284 | } |
1da177e4 LT |
285 | return i; |
286 | } | |
287 | ||
cbd69dbb LT |
288 | static int pci_device_suspend_late(struct device * dev, pm_message_t state) |
289 | { | |
290 | struct pci_dev * pci_dev = to_pci_dev(dev); | |
291 | struct pci_driver * drv = pci_dev->driver; | |
292 | int i = 0; | |
293 | ||
294 | if (drv && drv->suspend_late) { | |
295 | i = drv->suspend_late(pci_dev, state); | |
296 | suspend_report_result(drv->suspend_late, i); | |
297 | } | |
298 | return i; | |
299 | } | |
1da177e4 | 300 | |
95a62965 | 301 | /* |
1da177e4 LT |
302 | * Default resume method for devices that have no driver provided resume, |
303 | * or not even a driver at all. | |
304 | */ | |
8d92bc22 | 305 | static int pci_default_resume(struct pci_dev *pci_dev) |
1da177e4 | 306 | { |
8d92bc22 | 307 | int retval = 0; |
95a62965 | 308 | |
1da177e4 LT |
309 | /* restore the PCI config space */ |
310 | pci_restore_state(pci_dev); | |
311 | /* if the device was enabled before suspend, reenable */ | |
0b62e13b | 312 | retval = pci_reenable_device(pci_dev); |
1da177e4 LT |
313 | /* if the device was busmaster before the suspend, make it busmaster again */ |
314 | if (pci_dev->is_busmaster) | |
315 | pci_set_master(pci_dev); | |
8d92bc22 JD |
316 | |
317 | return retval; | |
1da177e4 LT |
318 | } |
319 | ||
320 | static int pci_device_resume(struct device * dev) | |
321 | { | |
8d92bc22 | 322 | int error; |
1da177e4 LT |
323 | struct pci_dev * pci_dev = to_pci_dev(dev); |
324 | struct pci_driver * drv = pci_dev->driver; | |
325 | ||
326 | if (drv && drv->resume) | |
8d92bc22 | 327 | error = drv->resume(pci_dev); |
1da177e4 | 328 | else |
8d92bc22 JD |
329 | error = pci_default_resume(pci_dev); |
330 | return error; | |
1da177e4 LT |
331 | } |
332 | ||
cbd69dbb LT |
333 | static int pci_device_resume_early(struct device * dev) |
334 | { | |
335 | int error = 0; | |
336 | struct pci_dev * pci_dev = to_pci_dev(dev); | |
337 | struct pci_driver * drv = pci_dev->driver; | |
338 | ||
1597cacb AC |
339 | pci_fixup_device(pci_fixup_resume, pci_dev); |
340 | ||
cbd69dbb LT |
341 | if (drv && drv->resume_early) |
342 | error = drv->resume_early(pci_dev); | |
343 | return error; | |
344 | } | |
345 | ||
c8958177 GKH |
346 | static void pci_device_shutdown(struct device *dev) |
347 | { | |
348 | struct pci_dev *pci_dev = to_pci_dev(dev); | |
349 | struct pci_driver *drv = pci_dev->driver; | |
350 | ||
351 | if (drv && drv->shutdown) | |
352 | drv->shutdown(pci_dev); | |
353 | } | |
1da177e4 LT |
354 | |
355 | #define kobj_to_pci_driver(obj) container_of(obj, struct device_driver, kobj) | |
356 | #define attr_to_driver_attribute(obj) container_of(obj, struct driver_attribute, attr) | |
357 | ||
358 | static ssize_t | |
359 | pci_driver_attr_show(struct kobject * kobj, struct attribute *attr, char *buf) | |
360 | { | |
361 | struct device_driver *driver = kobj_to_pci_driver(kobj); | |
362 | struct driver_attribute *dattr = attr_to_driver_attribute(attr); | |
fc7e4828 | 363 | ssize_t ret; |
1da177e4 | 364 | |
fc7e4828 DT |
365 | if (!get_driver(driver)) |
366 | return -ENODEV; | |
367 | ||
368 | ret = dattr->show ? dattr->show(driver, buf) : -EIO; | |
369 | ||
370 | put_driver(driver); | |
1da177e4 LT |
371 | return ret; |
372 | } | |
373 | ||
374 | static ssize_t | |
375 | pci_driver_attr_store(struct kobject * kobj, struct attribute *attr, | |
376 | const char *buf, size_t count) | |
377 | { | |
378 | struct device_driver *driver = kobj_to_pci_driver(kobj); | |
379 | struct driver_attribute *dattr = attr_to_driver_attribute(attr); | |
fc7e4828 | 380 | ssize_t ret; |
1da177e4 | 381 | |
fc7e4828 DT |
382 | if (!get_driver(driver)) |
383 | return -ENODEV; | |
384 | ||
385 | ret = dattr->store ? dattr->store(driver, buf, count) : -EIO; | |
386 | ||
387 | put_driver(driver); | |
1da177e4 LT |
388 | return ret; |
389 | } | |
390 | ||
391 | static struct sysfs_ops pci_driver_sysfs_ops = { | |
392 | .show = pci_driver_attr_show, | |
393 | .store = pci_driver_attr_store, | |
394 | }; | |
395 | static struct kobj_type pci_driver_kobj_type = { | |
396 | .sysfs_ops = &pci_driver_sysfs_ops, | |
397 | }; | |
398 | ||
1da177e4 | 399 | /** |
863b18f4 | 400 | * __pci_register_driver - register a new pci driver |
1da177e4 | 401 | * @drv: the driver structure to register |
863b18f4 | 402 | * @owner: owner module of drv |
f95d882d | 403 | * @mod_name: module name string |
1da177e4 LT |
404 | * |
405 | * Adds the driver structure to the list of registered drivers. | |
406 | * Returns a negative value on error, otherwise 0. | |
eaae4b3a | 407 | * If no error occurred, the driver remains registered even if |
1da177e4 LT |
408 | * no device was claimed during registration. |
409 | */ | |
725522b5 GKH |
410 | int __pci_register_driver(struct pci_driver *drv, struct module *owner, |
411 | const char *mod_name) | |
1da177e4 LT |
412 | { |
413 | int error; | |
414 | ||
415 | /* initialize common driver fields */ | |
416 | drv->driver.name = drv->name; | |
417 | drv->driver.bus = &pci_bus_type; | |
863b18f4 | 418 | drv->driver.owner = owner; |
725522b5 | 419 | drv->driver.mod_name = mod_name; |
1da177e4 | 420 | drv->driver.kobj.ktype = &pci_driver_kobj_type; |
50b00755 | 421 | |
75865858 GKH |
422 | spin_lock_init(&drv->dynids.lock); |
423 | INIT_LIST_HEAD(&drv->dynids.list); | |
1da177e4 LT |
424 | |
425 | /* register with core */ | |
426 | error = driver_register(&drv->driver); | |
50bf14b3 AM |
427 | if (error) |
428 | return error; | |
1da177e4 | 429 | |
50bf14b3 AM |
430 | error = pci_create_newid_file(drv); |
431 | if (error) | |
432 | driver_unregister(&drv->driver); | |
1da177e4 LT |
433 | |
434 | return error; | |
435 | } | |
436 | ||
437 | /** | |
438 | * pci_unregister_driver - unregister a pci driver | |
439 | * @drv: the driver structure to unregister | |
440 | * | |
441 | * Deletes the driver structure from the list of registered PCI drivers, | |
442 | * gives it a chance to clean up by calling its remove() function for | |
443 | * each device it was responsible for, and marks those devices as | |
444 | * driverless. | |
445 | */ | |
446 | ||
447 | void | |
448 | pci_unregister_driver(struct pci_driver *drv) | |
449 | { | |
450 | driver_unregister(&drv->driver); | |
451 | pci_free_dynids(drv); | |
452 | } | |
453 | ||
454 | static struct pci_driver pci_compat_driver = { | |
455 | .name = "compat" | |
456 | }; | |
457 | ||
458 | /** | |
459 | * pci_dev_driver - get the pci_driver of a device | |
460 | * @dev: the device to query | |
461 | * | |
462 | * Returns the appropriate pci_driver structure or %NULL if there is no | |
463 | * registered driver for the device. | |
464 | */ | |
465 | struct pci_driver * | |
466 | pci_dev_driver(const struct pci_dev *dev) | |
467 | { | |
468 | if (dev->driver) | |
469 | return dev->driver; | |
470 | else { | |
471 | int i; | |
472 | for(i=0; i<=PCI_ROM_RESOURCE; i++) | |
473 | if (dev->resource[i].flags & IORESOURCE_BUSY) | |
474 | return &pci_compat_driver; | |
475 | } | |
476 | return NULL; | |
477 | } | |
478 | ||
479 | /** | |
480 | * pci_bus_match - Tell if a PCI device structure has a matching PCI device id structure | |
1da177e4 | 481 | * @dev: the PCI device structure to match against |
8f7020d3 | 482 | * @drv: the device driver to search for matching PCI device id structures |
1da177e4 LT |
483 | * |
484 | * Used by a driver to check whether a PCI device present in the | |
8f7020d3 | 485 | * system is in its list of supported devices. Returns the matching |
1da177e4 LT |
486 | * pci_device_id structure or %NULL if there is no match. |
487 | */ | |
75865858 | 488 | static int pci_bus_match(struct device *dev, struct device_driver *drv) |
1da177e4 | 489 | { |
75865858 GKH |
490 | struct pci_dev *pci_dev = to_pci_dev(dev); |
491 | struct pci_driver *pci_drv = to_pci_driver(drv); | |
1da177e4 LT |
492 | const struct pci_device_id *found_id; |
493 | ||
75865858 | 494 | found_id = pci_match_device(pci_drv, pci_dev); |
1da177e4 LT |
495 | if (found_id) |
496 | return 1; | |
497 | ||
75865858 | 498 | return 0; |
1da177e4 LT |
499 | } |
500 | ||
501 | /** | |
502 | * pci_dev_get - increments the reference count of the pci device structure | |
503 | * @dev: the device being referenced | |
504 | * | |
505 | * Each live reference to a device should be refcounted. | |
506 | * | |
507 | * Drivers for PCI devices should normally record such references in | |
508 | * their probe() methods, when they bind to a device, and release | |
509 | * them by calling pci_dev_put(), in their disconnect() methods. | |
510 | * | |
511 | * A pointer to the device with the incremented reference counter is returned. | |
512 | */ | |
513 | struct pci_dev *pci_dev_get(struct pci_dev *dev) | |
514 | { | |
515 | if (dev) | |
516 | get_device(&dev->dev); | |
517 | return dev; | |
518 | } | |
519 | ||
520 | /** | |
521 | * pci_dev_put - release a use of the pci device structure | |
522 | * @dev: device that's been disconnected | |
523 | * | |
524 | * Must be called when a user of a device is finished with it. When the last | |
525 | * user of the device calls this function, the memory of the device is freed. | |
526 | */ | |
527 | void pci_dev_put(struct pci_dev *dev) | |
528 | { | |
529 | if (dev) | |
530 | put_device(&dev->dev); | |
531 | } | |
532 | ||
533 | #ifndef CONFIG_HOTPLUG | |
7eff2e7a | 534 | int pci_uevent(struct device *dev, struct kobj_uevent_env *env) |
1da177e4 LT |
535 | { |
536 | return -ENODEV; | |
537 | } | |
538 | #endif | |
539 | ||
540 | struct bus_type pci_bus_type = { | |
541 | .name = "pci", | |
542 | .match = pci_bus_match, | |
312c004d | 543 | .uevent = pci_uevent, |
b15d686a RK |
544 | .probe = pci_device_probe, |
545 | .remove = pci_device_remove, | |
1da177e4 | 546 | .suspend = pci_device_suspend, |
cbd69dbb LT |
547 | .suspend_late = pci_device_suspend_late, |
548 | .resume_early = pci_device_resume_early, | |
1da177e4 | 549 | .resume = pci_device_resume, |
cbd69dbb | 550 | .shutdown = pci_device_shutdown, |
1da177e4 LT |
551 | .dev_attrs = pci_dev_attrs, |
552 | }; | |
553 | ||
554 | static int __init pci_driver_init(void) | |
555 | { | |
556 | return bus_register(&pci_bus_type); | |
557 | } | |
558 | ||
559 | postcore_initcall(pci_driver_init); | |
560 | ||
75865858 | 561 | EXPORT_SYMBOL(pci_match_id); |
863b18f4 | 562 | EXPORT_SYMBOL(__pci_register_driver); |
1da177e4 LT |
563 | EXPORT_SYMBOL(pci_unregister_driver); |
564 | EXPORT_SYMBOL(pci_dev_driver); | |
565 | EXPORT_SYMBOL(pci_bus_type); | |
566 | EXPORT_SYMBOL(pci_dev_get); | |
567 | EXPORT_SYMBOL(pci_dev_put); |