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