Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * ds.c -- 16-bit PCMCIA core support | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * The initial developer of the original code is David A. Hinds | |
9 | * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds | |
10 | * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. | |
11 | * | |
12 | * (C) 1999 David A. Hinds | |
7b24e798 | 13 | * (C) 2003 - 2010 Dominik Brodowski |
1da177e4 LT |
14 | */ |
15 | ||
3b659fb8 | 16 | #include <linux/kernel.h> |
1da177e4 | 17 | #include <linux/module.h> |
1da177e4 | 18 | #include <linux/init.h> |
1da177e4 | 19 | #include <linux/errno.h> |
1da177e4 LT |
20 | #include <linux/list.h> |
21 | #include <linux/delay.h> | |
1da177e4 | 22 | #include <linux/workqueue.h> |
840c2ac5 | 23 | #include <linux/crc32.h> |
daa9517d | 24 | #include <linux/firmware.h> |
360b65b9 | 25 | #include <linux/kref.h> |
43d9f7fd | 26 | #include <linux/dma-mapping.h> |
5a0e3ad6 | 27 | #include <linux/slab.h> |
1da177e4 | 28 | |
1da177e4 | 29 | #include <pcmcia/cs.h> |
1da177e4 LT |
30 | #include <pcmcia/cistpl.h> |
31 | #include <pcmcia/ds.h> | |
32 | #include <pcmcia/ss.h> | |
33 | ||
34 | #include "cs_internal.h" | |
35 | ||
36 | /*====================================================================*/ | |
37 | ||
38 | /* Module parameters */ | |
39 | ||
40 | MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>"); | |
41 | MODULE_DESCRIPTION("PCMCIA Driver Services"); | |
42 | MODULE_LICENSE("GPL"); | |
43 | ||
1da177e4 | 44 | |
1da177e4 LT |
45 | /*====================================================================*/ |
46 | ||
23a83bfe DB |
47 | static void pcmcia_check_driver(struct pcmcia_driver *p_drv) |
48 | { | |
49 | struct pcmcia_device_id *did = p_drv->id_table; | |
50 | unsigned int i; | |
51 | u32 hash; | |
52 | ||
f8cfa618 | 53 | if (!p_drv->probe || !p_drv->remove) |
ba5bb6b5 PR |
54 | printk(KERN_DEBUG "pcmcia: %s lacks a requisite callback " |
55 | "function\n", p_drv->drv.name); | |
1e212f36 | 56 | |
23a83bfe | 57 | while (did && did->match_flags) { |
9fea84f4 | 58 | for (i = 0; i < 4; i++) { |
23a83bfe DB |
59 | if (!did->prod_id[i]) |
60 | continue; | |
61 | ||
62 | hash = crc32(0, did->prod_id[i], strlen(did->prod_id[i])); | |
63 | if (hash == did->prod_id_hash[i]) | |
64 | continue; | |
65 | ||
66 | printk(KERN_DEBUG "pcmcia: %s: invalid hash for " | |
67 | "product string \"%s\": is 0x%x, should " | |
68 | "be 0x%x\n", p_drv->drv.name, did->prod_id[i], | |
69 | did->prod_id_hash[i], hash); | |
5085cb26 DB |
70 | printk(KERN_DEBUG "pcmcia: see " |
71 | "Documentation/pcmcia/devicetable.txt for " | |
72 | "details\n"); | |
23a83bfe DB |
73 | } |
74 | did++; | |
75 | } | |
76 | ||
77 | return; | |
78 | } | |
79 | ||
daa9517d | 80 | |
1da177e4 LT |
81 | /*======================================================================*/ |
82 | ||
1da177e4 | 83 | |
6179b556 BW |
84 | struct pcmcia_dynid { |
85 | struct list_head node; | |
86 | struct pcmcia_device_id id; | |
87 | }; | |
88 | ||
89 | /** | |
90 | * pcmcia_store_new_id - add a new PCMCIA device ID to this driver and re-probe devices | |
91 | * @driver: target device driver | |
92 | * @buf: buffer for scanning device ID data | |
93 | * @count: input size | |
94 | * | |
95 | * Adds a new dynamic PCMCIA device ID to this driver, | |
96 | * and causes the driver to probe for all devices again. | |
97 | */ | |
98 | static ssize_t | |
99 | pcmcia_store_new_id(struct device_driver *driver, const char *buf, size_t count) | |
100 | { | |
101 | struct pcmcia_dynid *dynid; | |
102 | struct pcmcia_driver *pdrv = to_pcmcia_drv(driver); | |
103 | __u16 match_flags, manf_id, card_id; | |
104 | __u8 func_id, function, device_no; | |
105 | __u32 prod_id_hash[4] = {0, 0, 0, 0}; | |
9fea84f4 | 106 | int fields = 0; |
6179b556 BW |
107 | int retval = 0; |
108 | ||
109 | fields = sscanf(buf, "%hx %hx %hx %hhx %hhx %hhx %x %x %x %x", | |
110 | &match_flags, &manf_id, &card_id, &func_id, &function, &device_no, | |
111 | &prod_id_hash[0], &prod_id_hash[1], &prod_id_hash[2], &prod_id_hash[3]); | |
112 | if (fields < 6) | |
113 | return -EINVAL; | |
114 | ||
115 | dynid = kzalloc(sizeof(struct pcmcia_dynid), GFP_KERNEL); | |
116 | if (!dynid) | |
117 | return -ENOMEM; | |
118 | ||
6179b556 BW |
119 | dynid->id.match_flags = match_flags; |
120 | dynid->id.manf_id = manf_id; | |
121 | dynid->id.card_id = card_id; | |
122 | dynid->id.func_id = func_id; | |
123 | dynid->id.function = function; | |
124 | dynid->id.device_no = device_no; | |
125 | memcpy(dynid->id.prod_id_hash, prod_id_hash, sizeof(__u32) * 4); | |
126 | ||
3f565232 | 127 | mutex_lock(&pdrv->dynids.lock); |
b4b3d7bb | 128 | list_add_tail(&dynid->node, &pdrv->dynids.list); |
3f565232 | 129 | mutex_unlock(&pdrv->dynids.lock); |
6179b556 BW |
130 | |
131 | if (get_driver(&pdrv->drv)) { | |
132 | retval = driver_attach(&pdrv->drv); | |
133 | put_driver(&pdrv->drv); | |
134 | } | |
135 | ||
136 | if (retval) | |
137 | return retval; | |
138 | return count; | |
139 | } | |
140 | static DRIVER_ATTR(new_id, S_IWUSR, NULL, pcmcia_store_new_id); | |
141 | ||
142 | static void | |
143 | pcmcia_free_dynids(struct pcmcia_driver *drv) | |
144 | { | |
145 | struct pcmcia_dynid *dynid, *n; | |
146 | ||
3f565232 | 147 | mutex_lock(&drv->dynids.lock); |
6179b556 BW |
148 | list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) { |
149 | list_del(&dynid->node); | |
150 | kfree(dynid); | |
151 | } | |
3f565232 | 152 | mutex_unlock(&drv->dynids.lock); |
6179b556 BW |
153 | } |
154 | ||
155 | static int | |
156 | pcmcia_create_newid_file(struct pcmcia_driver *drv) | |
157 | { | |
158 | int error = 0; | |
159 | if (drv->probe != NULL) | |
2344c6de | 160 | error = driver_create_file(&drv->drv, &driver_attr_new_id); |
6179b556 BW |
161 | return error; |
162 | } | |
163 | ||
164 | ||
1da177e4 LT |
165 | /** |
166 | * pcmcia_register_driver - register a PCMCIA driver with the bus core | |
78187865 | 167 | * @driver: the &driver being registered |
1da177e4 LT |
168 | * |
169 | * Registers a PCMCIA driver with the PCMCIA bus core. | |
170 | */ | |
1da177e4 LT |
171 | int pcmcia_register_driver(struct pcmcia_driver *driver) |
172 | { | |
6179b556 BW |
173 | int error; |
174 | ||
1da177e4 LT |
175 | if (!driver) |
176 | return -EINVAL; | |
177 | ||
23a83bfe DB |
178 | pcmcia_check_driver(driver); |
179 | ||
1da177e4 LT |
180 | /* initialize common fields */ |
181 | driver->drv.bus = &pcmcia_bus_type; | |
182 | driver->drv.owner = driver->owner; | |
3f565232 | 183 | mutex_init(&driver->dynids.lock); |
6179b556 | 184 | INIT_LIST_HEAD(&driver->dynids.list); |
1da177e4 | 185 | |
d50dbec3 | 186 | pr_debug("registering driver %s\n", driver->drv.name); |
d9d9ea01 | 187 | |
6179b556 BW |
188 | error = driver_register(&driver->drv); |
189 | if (error < 0) | |
190 | return error; | |
191 | ||
192 | error = pcmcia_create_newid_file(driver); | |
193 | if (error) | |
194 | driver_unregister(&driver->drv); | |
195 | ||
196 | return error; | |
1da177e4 LT |
197 | } |
198 | EXPORT_SYMBOL(pcmcia_register_driver); | |
199 | ||
200 | /** | |
201 | * pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core | |
78187865 | 202 | * @driver: the &driver being unregistered |
1da177e4 LT |
203 | */ |
204 | void pcmcia_unregister_driver(struct pcmcia_driver *driver) | |
205 | { | |
d50dbec3 | 206 | pr_debug("unregistering driver %s\n", driver->drv.name); |
1da177e4 | 207 | driver_unregister(&driver->drv); |
6179b556 | 208 | pcmcia_free_dynids(driver); |
1da177e4 LT |
209 | } |
210 | EXPORT_SYMBOL(pcmcia_unregister_driver); | |
211 | ||
1da177e4 LT |
212 | |
213 | /* pcmcia_device handling */ | |
214 | ||
5716d415 | 215 | static struct pcmcia_device *pcmcia_get_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
216 | { |
217 | struct device *tmp_dev; | |
218 | tmp_dev = get_device(&p_dev->dev); | |
219 | if (!tmp_dev) | |
220 | return NULL; | |
221 | return to_pcmcia_dev(tmp_dev); | |
222 | } | |
223 | ||
5716d415 | 224 | static void pcmcia_put_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
225 | { |
226 | if (p_dev) | |
227 | put_device(&p_dev->dev); | |
228 | } | |
229 | ||
360b65b9 DB |
230 | static void pcmcia_release_function(struct kref *ref) |
231 | { | |
232 | struct config_t *c = container_of(ref, struct config_t, ref); | |
d50dbec3 | 233 | pr_debug("releasing config_t\n"); |
360b65b9 DB |
234 | kfree(c); |
235 | } | |
236 | ||
1da177e4 LT |
237 | static void pcmcia_release_dev(struct device *dev) |
238 | { | |
239 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
44961a03 | 240 | int i; |
d50dbec3 | 241 | dev_dbg(dev, "releasing device\n"); |
dc109497 | 242 | pcmcia_put_socket(p_dev->socket); |
44961a03 DB |
243 | for (i = 0; i < 4; i++) |
244 | kfree(p_dev->prod_id[i]); | |
bd65a685 | 245 | kfree(p_dev->devname); |
360b65b9 | 246 | kref_put(&p_dev->function_config->ref, pcmcia_release_function); |
1da177e4 LT |
247 | kfree(p_dev); |
248 | } | |
249 | ||
250 | ||
9fea84f4 | 251 | static int pcmcia_device_probe(struct device *dev) |
1da177e4 LT |
252 | { |
253 | struct pcmcia_device *p_dev; | |
254 | struct pcmcia_driver *p_drv; | |
f8cfa618 | 255 | struct pcmcia_socket *s; |
af2b3b50 | 256 | cistpl_config_t cis_config; |
1da177e4 LT |
257 | int ret = 0; |
258 | ||
259 | dev = get_device(dev); | |
260 | if (!dev) | |
261 | return -ENODEV; | |
262 | ||
263 | p_dev = to_pcmcia_dev(dev); | |
264 | p_drv = to_pcmcia_drv(dev->driver); | |
f8cfa618 | 265 | s = p_dev->socket; |
1da177e4 | 266 | |
d50dbec3 | 267 | dev_dbg(dev, "trying to bind to %s\n", p_drv->drv.name); |
d9d9ea01 | 268 | |
360b65b9 DB |
269 | if ((!p_drv->probe) || (!p_dev->function_config) || |
270 | (!try_module_get(p_drv->owner))) { | |
1da177e4 LT |
271 | ret = -EINVAL; |
272 | goto put_dev; | |
273 | } | |
274 | ||
af2b3b50 DB |
275 | /* set up some more device information */ |
276 | ret = pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_CONFIG, | |
277 | &cis_config); | |
278 | if (!ret) { | |
279 | p_dev->conf.ConfigBase = cis_config.base; | |
280 | p_dev->conf.Present = cis_config.rmask[0]; | |
281 | } else { | |
ac449d6e DB |
282 | dev_printk(KERN_INFO, dev, |
283 | "pcmcia: could not parse base and rmask0 of CIS\n"); | |
af2b3b50 DB |
284 | p_dev->conf.ConfigBase = 0; |
285 | p_dev->conf.Present = 0; | |
286 | } | |
287 | ||
f8cfa618 | 288 | ret = p_drv->probe(p_dev); |
d9d9ea01 | 289 | if (ret) { |
d50dbec3 | 290 | dev_dbg(dev, "binding to %s failed with %d\n", |
ac449d6e | 291 | p_drv->drv.name, ret); |
82d56e6d | 292 | goto put_module; |
d9d9ea01 | 293 | } |
82d56e6d | 294 | |
00ce99ff | 295 | mutex_lock(&s->ops_mutex); |
ce3f9d71 | 296 | if ((s->pcmcia_pfc) && |
82d56e6d | 297 | (p_dev->socket->device_count == 1) && (p_dev->device_no == 0)) |
aa584ca4 | 298 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY); |
00ce99ff | 299 | mutex_unlock(&s->ops_mutex); |
f8cfa618 | 300 | |
cec5eb7b | 301 | put_module: |
1da177e4 LT |
302 | if (ret) |
303 | module_put(p_drv->owner); | |
cec5eb7b | 304 | put_dev: |
f8cfa618 | 305 | if (ret) |
1da177e4 | 306 | put_device(dev); |
9fea84f4 | 307 | return ret; |
1da177e4 LT |
308 | } |
309 | ||
310 | ||
d6ff5a85 DB |
311 | /* |
312 | * Removes a PCMCIA card from the device tree and socket list. | |
313 | */ | |
314 | static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *leftover) | |
315 | { | |
316 | struct pcmcia_device *p_dev; | |
317 | struct pcmcia_device *tmp; | |
d6ff5a85 | 318 | |
d50dbec3 | 319 | dev_dbg(leftover ? &leftover->dev : &s->dev, |
ac449d6e DB |
320 | "pcmcia_card_remove(%d) %s\n", s->sock, |
321 | leftover ? leftover->devname : ""); | |
d6ff5a85 | 322 | |
00ce99ff | 323 | mutex_lock(&s->ops_mutex); |
d6ff5a85 DB |
324 | if (!leftover) |
325 | s->device_count = 0; | |
326 | else | |
327 | s->device_count = 1; | |
00ce99ff | 328 | mutex_unlock(&s->ops_mutex); |
d6ff5a85 DB |
329 | |
330 | /* unregister all pcmcia_devices registered with this socket, except leftover */ | |
331 | list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) { | |
332 | if (p_dev == leftover) | |
333 | continue; | |
334 | ||
00ce99ff | 335 | mutex_lock(&s->ops_mutex); |
d6ff5a85 | 336 | list_del(&p_dev->socket_device_list); |
00ce99ff | 337 | mutex_unlock(&s->ops_mutex); |
d6ff5a85 | 338 | |
d50dbec3 | 339 | dev_dbg(&p_dev->dev, "unregistering device\n"); |
d6ff5a85 DB |
340 | device_unregister(&p_dev->dev); |
341 | } | |
342 | ||
343 | return; | |
344 | } | |
345 | ||
9fea84f4 | 346 | static int pcmcia_device_remove(struct device *dev) |
1da177e4 LT |
347 | { |
348 | struct pcmcia_device *p_dev; | |
349 | struct pcmcia_driver *p_drv; | |
cc3b4866 | 350 | int i; |
1da177e4 | 351 | |
1da177e4 LT |
352 | p_dev = to_pcmcia_dev(dev); |
353 | p_drv = to_pcmcia_drv(dev->driver); | |
d6ff5a85 | 354 | |
d50dbec3 | 355 | dev_dbg(dev, "removing device\n"); |
d9d9ea01 | 356 | |
d6ff5a85 DB |
357 | /* If we're removing the primary module driving a |
358 | * pseudo multi-function card, we need to unbind | |
359 | * all devices | |
360 | */ | |
ce3f9d71 | 361 | if ((p_dev->socket->pcmcia_pfc) && |
e6e4f397 | 362 | (p_dev->socket->device_count > 0) && |
d6ff5a85 DB |
363 | (p_dev->device_no == 0)) |
364 | pcmcia_card_remove(p_dev->socket, p_dev); | |
365 | ||
366 | /* detach the "instance" */ | |
f3990715 DB |
367 | if (!p_drv) |
368 | return 0; | |
1da177e4 | 369 | |
f3990715 | 370 | if (p_drv->remove) |
9fea84f4 | 371 | p_drv->remove(p_dev); |
cc3b4866 | 372 | |
f3990715 | 373 | /* check for proper unloading */ |
e2d40963 | 374 | if (p_dev->_irq || p_dev->_io || p_dev->_locked) |
ac449d6e DB |
375 | dev_printk(KERN_INFO, dev, |
376 | "pcmcia: driver %s did not release config properly\n", | |
377 | p_drv->drv.name); | |
cc3b4866 | 378 | |
f3990715 | 379 | for (i = 0; i < MAX_WIN; i++) |
e2d40963 | 380 | if (p_dev->_win & CLIENT_WIN_REQ(i)) |
ac449d6e DB |
381 | dev_printk(KERN_INFO, dev, |
382 | "pcmcia: driver %s did not release window properly\n", | |
383 | p_drv->drv.name); | |
cc3b4866 | 384 | |
f3990715 DB |
385 | /* references from pcmcia_probe_device */ |
386 | pcmcia_put_dev(p_dev); | |
387 | module_put(p_drv->owner); | |
1da177e4 LT |
388 | |
389 | return 0; | |
390 | } | |
391 | ||
392 | ||
1da177e4 LT |
393 | /* |
394 | * pcmcia_device_query -- determine information about a pcmcia device | |
395 | */ | |
396 | static int pcmcia_device_query(struct pcmcia_device *p_dev) | |
397 | { | |
398 | cistpl_manfid_t manf_id; | |
399 | cistpl_funcid_t func_id; | |
76fa82fb | 400 | cistpl_vers_1_t *vers1; |
1da177e4 LT |
401 | unsigned int i; |
402 | ||
76fa82fb IM |
403 | vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL); |
404 | if (!vers1) | |
405 | return -ENOMEM; | |
406 | ||
84897fc0 | 407 | if (!pccard_read_tuple(p_dev->socket, BIND_FN_ALL, |
1da177e4 | 408 | CISTPL_MANFID, &manf_id)) { |
af461fc1 | 409 | mutex_lock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
410 | p_dev->manf_id = manf_id.manf; |
411 | p_dev->card_id = manf_id.card; | |
412 | p_dev->has_manf_id = 1; | |
413 | p_dev->has_card_id = 1; | |
af461fc1 | 414 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
415 | } |
416 | ||
417 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, | |
418 | CISTPL_FUNCID, &func_id)) { | |
af461fc1 | 419 | mutex_lock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
420 | p_dev->func_id = func_id.func; |
421 | p_dev->has_func_id = 1; | |
af461fc1 | 422 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
423 | } else { |
424 | /* rule of thumb: cards with no FUNCID, but with | |
425 | * common memory device geometry information, are | |
426 | * probably memory cards (from pcmcia-cs) */ | |
76fa82fb IM |
427 | cistpl_device_geo_t *devgeo; |
428 | ||
429 | devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL); | |
430 | if (!devgeo) { | |
431 | kfree(vers1); | |
432 | return -ENOMEM; | |
433 | } | |
1da177e4 | 434 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
76fa82fb | 435 | CISTPL_DEVICE_GEO, devgeo)) { |
d50dbec3 | 436 | dev_dbg(&p_dev->dev, |
ac449d6e DB |
437 | "mem device geometry probably means " |
438 | "FUNCID_MEMORY\n"); | |
af461fc1 | 439 | mutex_lock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
440 | p_dev->func_id = CISTPL_FUNCID_MEMORY; |
441 | p_dev->has_func_id = 1; | |
af461fc1 | 442 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 | 443 | } |
76fa82fb | 444 | kfree(devgeo); |
1da177e4 LT |
445 | } |
446 | ||
84897fc0 | 447 | if (!pccard_read_tuple(p_dev->socket, BIND_FN_ALL, CISTPL_VERS_1, |
76fa82fb | 448 | vers1)) { |
af461fc1 | 449 | mutex_lock(&p_dev->socket->ops_mutex); |
c5e09528 | 450 | for (i = 0; i < min_t(unsigned int, 4, vers1->ns); i++) { |
1da177e4 LT |
451 | char *tmp; |
452 | unsigned int length; | |
44961a03 | 453 | char *new; |
1da177e4 | 454 | |
76fa82fb | 455 | tmp = vers1->str + vers1->ofs[i]; |
1da177e4 LT |
456 | |
457 | length = strlen(tmp) + 1; | |
6e3d4f25 | 458 | if ((length < 2) || (length > 255)) |
1da177e4 LT |
459 | continue; |
460 | ||
44961a03 DB |
461 | new = kmalloc(sizeof(char) * length, GFP_KERNEL); |
462 | if (!new) | |
1da177e4 LT |
463 | continue; |
464 | ||
44961a03 DB |
465 | new = strncpy(new, tmp, length); |
466 | ||
467 | tmp = p_dev->prod_id[i]; | |
468 | p_dev->prod_id[i] = new; | |
469 | kfree(tmp); | |
1da177e4 | 470 | } |
af461fc1 | 471 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
472 | } |
473 | ||
76fa82fb | 474 | kfree(vers1); |
1da177e4 LT |
475 | return 0; |
476 | } | |
477 | ||
478 | ||
5716d415 DB |
479 | static struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, |
480 | unsigned int function) | |
1da177e4 | 481 | { |
360b65b9 | 482 | struct pcmcia_device *p_dev, *tmp_dev; |
44961a03 | 483 | int i; |
1da177e4 | 484 | |
dc109497 | 485 | s = pcmcia_get_socket(s); |
1da177e4 LT |
486 | if (!s) |
487 | return NULL; | |
488 | ||
d50dbec3 | 489 | pr_debug("adding device to %d, function %d\n", s->sock, function); |
d9d9ea01 | 490 | |
8084b372 | 491 | p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL); |
1da177e4 LT |
492 | if (!p_dev) |
493 | goto err_put; | |
1da177e4 | 494 | |
00ce99ff | 495 | mutex_lock(&s->ops_mutex); |
1da177e4 | 496 | p_dev->device_no = (s->device_count++); |
00ce99ff | 497 | mutex_unlock(&s->ops_mutex); |
e6e4f397 | 498 | |
7d7ba8d3 DB |
499 | /* max of 2 PFC devices */ |
500 | if ((p_dev->device_no >= 2) && (function == 0)) | |
501 | goto err_free; | |
502 | ||
503 | /* max of 4 devices overall */ | |
504 | if (p_dev->device_no >= 4) | |
e6e4f397 DB |
505 | goto err_free; |
506 | ||
507 | p_dev->socket = s; | |
1da177e4 LT |
508 | p_dev->func = function; |
509 | ||
510 | p_dev->dev.bus = &pcmcia_bus_type; | |
87373318 | 511 | p_dev->dev.parent = s->dev.parent; |
1da177e4 | 512 | p_dev->dev.release = pcmcia_release_dev; |
43d9f7fd JB |
513 | /* by default don't allow DMA */ |
514 | p_dev->dma_mask = DMA_MASK_NONE; | |
515 | p_dev->dev.dma_mask = &p_dev->dma_mask; | |
25096986 KS |
516 | dev_set_name(&p_dev->dev, "%d.%d", p_dev->socket->sock, p_dev->device_no); |
517 | if (!dev_name(&p_dev->dev)) | |
518 | goto err_free; | |
519 | p_dev->devname = kasprintf(GFP_KERNEL, "pcmcia%s", dev_name(&p_dev->dev)); | |
bd65a685 BG |
520 | if (!p_dev->devname) |
521 | goto err_free; | |
d50dbec3 | 522 | dev_dbg(&p_dev->dev, "devname is %s\n", p_dev->devname); |
1da177e4 | 523 | |
00ce99ff | 524 | mutex_lock(&s->ops_mutex); |
360b65b9 DB |
525 | |
526 | /* | |
527 | * p_dev->function_config must be the same for all card functions. | |
a60f22c4 DB |
528 | * Note that this is serialized by ops_mutex, so that only one |
529 | * such struct will be created. | |
360b65b9 | 530 | */ |
9fea84f4 DB |
531 | list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list) |
532 | if (p_dev->func == tmp_dev->func) { | |
360b65b9 | 533 | p_dev->function_config = tmp_dev->function_config; |
3e879f61 | 534 | p_dev->irq = tmp_dev->irq; |
360b65b9 DB |
535 | kref_get(&p_dev->function_config->ref); |
536 | } | |
537 | ||
538 | /* Add to the list in pcmcia_bus_socket */ | |
6171b88b | 539 | list_add(&p_dev->socket_device_list, &s->devices_list); |
360b65b9 | 540 | |
6f0f38c4 DB |
541 | if (pcmcia_setup_irq(p_dev)) |
542 | dev_warn(&p_dev->dev, | |
543 | "IRQ setup failed -- device might not work\n"); | |
1da177e4 | 544 | |
360b65b9 | 545 | if (!p_dev->function_config) { |
2ce4905e | 546 | config_t *c; |
d50dbec3 | 547 | dev_dbg(&p_dev->dev, "creating config_t\n"); |
2ce4905e DB |
548 | c = kzalloc(sizeof(struct config_t), GFP_KERNEL); |
549 | if (!c) { | |
6f0f38c4 | 550 | mutex_unlock(&s->ops_mutex); |
360b65b9 | 551 | goto err_unreg; |
6f0f38c4 | 552 | } |
2ce4905e DB |
553 | p_dev->function_config = c; |
554 | kref_init(&c->ref); | |
555 | for (i = 0; i < MAX_IO_WIN; i++) { | |
556 | c->io[i].name = dev_name(&p_dev->dev); | |
557 | c->io[i].flags = IORESOURCE_IO; | |
558 | } | |
0ca724d3 DB |
559 | for (i = 0; i< MAX_WIN; i++) { |
560 | c->mem[i].name = dev_name(&p_dev->dev); | |
561 | c->mem[i].flags = IORESOURCE_MEM; | |
562 | } | |
360b65b9 | 563 | } |
2ce4905e DB |
564 | for (i = 0; i < MAX_IO_WIN; i++) |
565 | p_dev->resource[i] = &p_dev->function_config->io[i]; | |
0ca724d3 DB |
566 | for (; i < (MAX_IO_WIN + MAX_WIN); i++) |
567 | p_dev->resource[i] = &p_dev->function_config->mem[i-MAX_IO_WIN]; | |
2ce4905e | 568 | |
6f0f38c4 | 569 | mutex_unlock(&s->ops_mutex); |
360b65b9 | 570 | |
ac449d6e | 571 | dev_printk(KERN_NOTICE, &p_dev->dev, |
6f0f38c4 | 572 | "pcmcia: registering new device %s (IRQ: %d)\n", |
eb14120f | 573 | p_dev->devname, p_dev->irq); |
807277cb | 574 | |
1ad275e3 DB |
575 | pcmcia_device_query(p_dev); |
576 | ||
360b65b9 DB |
577 | if (device_register(&p_dev->dev)) |
578 | goto err_unreg; | |
1da177e4 | 579 | |
1da177e4 LT |
580 | return p_dev; |
581 | ||
360b65b9 | 582 | err_unreg: |
00ce99ff | 583 | mutex_lock(&s->ops_mutex); |
360b65b9 | 584 | list_del(&p_dev->socket_device_list); |
00ce99ff | 585 | mutex_unlock(&s->ops_mutex); |
360b65b9 | 586 | |
1da177e4 | 587 | err_free: |
00ce99ff | 588 | mutex_lock(&s->ops_mutex); |
e6e4f397 | 589 | s->device_count--; |
00ce99ff | 590 | mutex_unlock(&s->ops_mutex); |
e6e4f397 | 591 | |
44961a03 DB |
592 | for (i = 0; i < 4; i++) |
593 | kfree(p_dev->prod_id[i]); | |
bd65a685 | 594 | kfree(p_dev->devname); |
1da177e4 | 595 | kfree(p_dev); |
1da177e4 | 596 | err_put: |
dc109497 | 597 | pcmcia_put_socket(s); |
1da177e4 LT |
598 | |
599 | return NULL; | |
600 | } | |
601 | ||
602 | ||
603 | static int pcmcia_card_add(struct pcmcia_socket *s) | |
604 | { | |
1da177e4 | 605 | cistpl_longlink_mfc_t mfc; |
c5081d5f | 606 | unsigned int no_funcs, i, no_chains; |
cfe5d809 | 607 | int ret = -EAGAIN; |
1da177e4 | 608 | |
cfe5d809 | 609 | mutex_lock(&s->ops_mutex); |
d9d9ea01 | 610 | if (!(s->resource_setup_done)) { |
d50dbec3 | 611 | dev_dbg(&s->dev, |
ac449d6e | 612 | "no resources available, delaying card_add\n"); |
cfe5d809 | 613 | mutex_unlock(&s->ops_mutex); |
1da177e4 | 614 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 615 | } |
1da177e4 | 616 | |
d9d9ea01 | 617 | if (pcmcia_validate_mem(s)) { |
d50dbec3 | 618 | dev_dbg(&s->dev, "validating mem resources failed, " |
d9d9ea01 | 619 | "delaying card_add\n"); |
cfe5d809 | 620 | mutex_unlock(&s->ops_mutex); |
de75914e | 621 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 622 | } |
cfe5d809 | 623 | mutex_unlock(&s->ops_mutex); |
de75914e | 624 | |
84897fc0 | 625 | ret = pccard_validate_cis(s, &no_chains); |
c5081d5f | 626 | if (ret || !no_chains) { |
d50dbec3 | 627 | dev_dbg(&s->dev, "invalid CIS or invalid resources\n"); |
1da177e4 LT |
628 | return -ENODEV; |
629 | } | |
630 | ||
631 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
632 | no_funcs = mfc.nfn; | |
633 | else | |
634 | no_funcs = 1; | |
1d2c9042 | 635 | s->functions = no_funcs; |
1da177e4 | 636 | |
9fea84f4 | 637 | for (i = 0; i < no_funcs; i++) |
dc109497 | 638 | pcmcia_device_add(s, i); |
1da177e4 | 639 | |
9fea84f4 | 640 | return ret; |
1da177e4 LT |
641 | } |
642 | ||
643 | ||
af461fc1 | 644 | static int pcmcia_requery_callback(struct device *dev, void * _data) |
ff1fa9ef | 645 | { |
e2f0b534 | 646 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
d9d9ea01 | 647 | if (!p_dev->dev.driver) { |
d50dbec3 | 648 | dev_dbg(dev, "update device information\n"); |
e2f0b534 | 649 | pcmcia_device_query(p_dev); |
d9d9ea01 | 650 | } |
e2f0b534 DB |
651 | |
652 | return 0; | |
653 | } | |
654 | ||
aa584ca4 | 655 | |
af461fc1 | 656 | static void pcmcia_requery(struct pcmcia_socket *s) |
e2f0b534 | 657 | { |
04de0816 | 658 | int has_pfc; |
4ae1cbf1 | 659 | |
af461fc1 DB |
660 | if (s->functions == 0) { |
661 | pcmcia_card_add(s); | |
662 | return; | |
e2f0b534 DB |
663 | } |
664 | ||
665 | /* some device information might have changed because of a CIS | |
666 | * update or because we can finally read it correctly... so | |
667 | * determine it again, overwriting old values if necessary. */ | |
af461fc1 DB |
668 | bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery_callback); |
669 | ||
670 | /* if the CIS changed, we need to check whether the number of | |
671 | * functions changed. */ | |
672 | if (s->fake_cis) { | |
673 | int old_funcs, new_funcs; | |
674 | cistpl_longlink_mfc_t mfc; | |
675 | ||
676 | /* does this cis override add or remove functions? */ | |
677 | old_funcs = s->functions; | |
678 | ||
679 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, | |
680 | &mfc)) | |
681 | new_funcs = mfc.nfn; | |
682 | else | |
683 | new_funcs = 1; | |
b1095afe DB |
684 | if (old_funcs != new_funcs) { |
685 | /* we need to re-start */ | |
af461fc1 | 686 | pcmcia_card_remove(s, NULL); |
b83156b5 | 687 | s->functions = 0; |
af461fc1 | 688 | pcmcia_card_add(s); |
af461fc1 DB |
689 | } |
690 | } | |
e2f0b534 | 691 | |
aa584ca4 DB |
692 | /* If the PCMCIA device consists of two pseudo devices, |
693 | * call pcmcia_device_add() -- which will fail if both | |
694 | * devices are already registered. */ | |
695 | mutex_lock(&s->ops_mutex); | |
ce3f9d71 | 696 | has_pfc = s->pcmcia_pfc; |
aa584ca4 DB |
697 | mutex_unlock(&s->ops_mutex); |
698 | if (has_pfc) | |
699 | pcmcia_device_add(s, 0); | |
700 | ||
e2f0b534 DB |
701 | /* we re-scan all devices, not just the ones connected to this |
702 | * socket. This does not matter, though. */ | |
af461fc1 DB |
703 | if (bus_rescan_devices(&pcmcia_bus_type)) |
704 | dev_warn(&s->dev, "rescanning the bus failed\n"); | |
ff1fa9ef | 705 | } |
1ad275e3 | 706 | |
af461fc1 | 707 | |
1d2c9042 DB |
708 | #ifdef CONFIG_PCMCIA_LOAD_CIS |
709 | ||
710 | /** | |
711 | * pcmcia_load_firmware - load CIS from userspace if device-provided is broken | |
78187865 RD |
712 | * @dev: the pcmcia device which needs a CIS override |
713 | * @filename: requested filename in /lib/firmware/ | |
1d2c9042 DB |
714 | * |
715 | * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if | |
716 | * the one provided by the card is broken. The firmware files reside in | |
717 | * /lib/firmware/ in userspace. | |
718 | */ | |
719 | static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
720 | { | |
721 | struct pcmcia_socket *s = dev->socket; | |
722 | const struct firmware *fw; | |
1d2c9042 | 723 | int ret = -ENOMEM; |
b1095afe DB |
724 | cistpl_longlink_mfc_t mfc; |
725 | int old_funcs, new_funcs = 1; | |
1d2c9042 DB |
726 | |
727 | if (!filename) | |
728 | return -EINVAL; | |
729 | ||
d50dbec3 | 730 | dev_dbg(&dev->dev, "trying to load CIS file %s\n", filename); |
1d2c9042 | 731 | |
ed62acec | 732 | if (request_firmware(&fw, filename, &dev->dev) == 0) { |
d9d9ea01 DB |
733 | if (fw->size >= CISTPL_MAX_CIS_SIZE) { |
734 | ret = -EINVAL; | |
ac449d6e DB |
735 | dev_printk(KERN_ERR, &dev->dev, |
736 | "pcmcia: CIS override is too big\n"); | |
1d2c9042 | 737 | goto release; |
d9d9ea01 | 738 | } |
1d2c9042 | 739 | |
53efec95 | 740 | if (!pcmcia_replace_cis(s, fw->data, fw->size)) |
1d2c9042 | 741 | ret = 0; |
d9d9ea01 | 742 | else { |
ac449d6e DB |
743 | dev_printk(KERN_ERR, &dev->dev, |
744 | "pcmcia: CIS override failed\n"); | |
d9d9ea01 DB |
745 | goto release; |
746 | } | |
747 | ||
b1095afe DB |
748 | /* we need to re-start if the number of functions changed */ |
749 | old_funcs = s->functions; | |
750 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, | |
751 | &mfc)) | |
752 | new_funcs = mfc.nfn; | |
753 | ||
754 | if (old_funcs != new_funcs) | |
755 | ret = -EBUSY; | |
1d2c9042 DB |
756 | |
757 | /* update information */ | |
758 | pcmcia_device_query(dev); | |
759 | ||
aa584ca4 DB |
760 | /* requery (as number of functions might have changed) */ |
761 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY); | |
1d2c9042 DB |
762 | } |
763 | release: | |
764 | release_firmware(fw); | |
765 | ||
9fea84f4 | 766 | return ret; |
1d2c9042 DB |
767 | } |
768 | ||
769 | #else /* !CONFIG_PCMCIA_LOAD_CIS */ | |
770 | ||
771 | static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
772 | { | |
773 | return -ENODEV; | |
774 | } | |
775 | ||
776 | #endif | |
777 | ||
778 | ||
1ad275e3 DB |
779 | static inline int pcmcia_devmatch(struct pcmcia_device *dev, |
780 | struct pcmcia_device_id *did) | |
781 | { | |
782 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) { | |
783 | if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id)) | |
784 | return 0; | |
785 | } | |
786 | ||
787 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) { | |
788 | if ((!dev->has_card_id) || (dev->card_id != did->card_id)) | |
789 | return 0; | |
790 | } | |
791 | ||
792 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) { | |
793 | if (dev->func != did->function) | |
794 | return 0; | |
795 | } | |
796 | ||
797 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) { | |
798 | if (!dev->prod_id[0]) | |
799 | return 0; | |
800 | if (strcmp(did->prod_id[0], dev->prod_id[0])) | |
801 | return 0; | |
802 | } | |
803 | ||
804 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) { | |
805 | if (!dev->prod_id[1]) | |
806 | return 0; | |
807 | if (strcmp(did->prod_id[1], dev->prod_id[1])) | |
808 | return 0; | |
809 | } | |
810 | ||
811 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) { | |
812 | if (!dev->prod_id[2]) | |
813 | return 0; | |
814 | if (strcmp(did->prod_id[2], dev->prod_id[2])) | |
815 | return 0; | |
816 | } | |
817 | ||
818 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) { | |
819 | if (!dev->prod_id[3]) | |
820 | return 0; | |
821 | if (strcmp(did->prod_id[3], dev->prod_id[3])) | |
822 | return 0; | |
823 | } | |
824 | ||
825 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { | |
83bf6f11 | 826 | dev_dbg(&dev->dev, "this is a pseudo-multi-function device\n"); |
aa584ca4 | 827 | mutex_lock(&dev->socket->ops_mutex); |
ce3f9d71 | 828 | dev->socket->pcmcia_pfc = 1; |
aa584ca4 | 829 | mutex_unlock(&dev->socket->ops_mutex); |
83bf6f11 AK |
830 | if (dev->device_no != did->device_no) |
831 | return 0; | |
1ad275e3 DB |
832 | } |
833 | ||
834 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { | |
94a819f8 DB |
835 | int ret; |
836 | ||
1ad275e3 DB |
837 | if ((!dev->has_func_id) || (dev->func_id != did->func_id)) |
838 | return 0; | |
839 | ||
840 | /* if this is a pseudo-multi-function device, | |
841 | * we need explicit matches */ | |
ce3f9d71 | 842 | if (dev->socket->pcmcia_pfc) |
1ad275e3 DB |
843 | return 0; |
844 | if (dev->device_no) | |
845 | return 0; | |
846 | ||
847 | /* also, FUNC_ID matching needs to be activated by userspace | |
848 | * after it has re-checked that there is no possible module | |
849 | * with a prod_id/manf_id/card_id match. | |
850 | */ | |
94a819f8 DB |
851 | mutex_lock(&dev->socket->ops_mutex); |
852 | ret = dev->allow_func_id_match; | |
853 | mutex_unlock(&dev->socket->ops_mutex); | |
854 | ||
855 | if (!ret) { | |
856 | dev_dbg(&dev->dev, | |
857 | "skipping FUNC_ID match until userspace ACK\n"); | |
1ad275e3 | 858 | return 0; |
94a819f8 | 859 | } |
1ad275e3 DB |
860 | } |
861 | ||
ea7b3882 | 862 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { |
d50dbec3 | 863 | dev_dbg(&dev->dev, "device needs a fake CIS\n"); |
daa9517d | 864 | if (!dev->socket->fake_cis) |
b1095afe DB |
865 | if (pcmcia_load_firmware(dev, did->cisfile)) |
866 | return 0; | |
ea7b3882 DB |
867 | } |
868 | ||
f602ff7e DB |
869 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { |
870 | int i; | |
9fea84f4 | 871 | for (i = 0; i < 4; i++) |
f602ff7e DB |
872 | if (dev->prod_id[i]) |
873 | return 0; | |
874 | if (dev->has_manf_id || dev->has_card_id || dev->has_func_id) | |
875 | return 0; | |
876 | } | |
877 | ||
1ad275e3 DB |
878 | return 1; |
879 | } | |
880 | ||
881 | ||
9fea84f4 DB |
882 | static int pcmcia_bus_match(struct device *dev, struct device_driver *drv) |
883 | { | |
884 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
885 | struct pcmcia_driver *p_drv = to_pcmcia_drv(drv); | |
1ad275e3 | 886 | struct pcmcia_device_id *did = p_drv->id_table; |
6179b556 BW |
887 | struct pcmcia_dynid *dynid; |
888 | ||
889 | /* match dynamic devices first */ | |
3f565232 | 890 | mutex_lock(&p_drv->dynids.lock); |
6179b556 | 891 | list_for_each_entry(dynid, &p_drv->dynids.list, node) { |
d50dbec3 | 892 | dev_dbg(dev, "trying to match to %s\n", drv->name); |
6179b556 | 893 | if (pcmcia_devmatch(p_dev, &dynid->id)) { |
d50dbec3 | 894 | dev_dbg(dev, "matched to %s\n", drv->name); |
3f565232 | 895 | mutex_unlock(&p_drv->dynids.lock); |
6179b556 BW |
896 | return 1; |
897 | } | |
898 | } | |
3f565232 | 899 | mutex_unlock(&p_drv->dynids.lock); |
1da177e4 | 900 | |
1ad275e3 | 901 | while (did && did->match_flags) { |
d50dbec3 | 902 | dev_dbg(dev, "trying to match to %s\n", drv->name); |
d9d9ea01 | 903 | if (pcmcia_devmatch(p_dev, did)) { |
d50dbec3 | 904 | dev_dbg(dev, "matched to %s\n", drv->name); |
1ad275e3 | 905 | return 1; |
d9d9ea01 | 906 | } |
1ad275e3 DB |
907 | did++; |
908 | } | |
909 | ||
1da177e4 LT |
910 | return 0; |
911 | } | |
912 | ||
840c2ac5 DB |
913 | #ifdef CONFIG_HOTPLUG |
914 | ||
7eff2e7a | 915 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
916 | { |
917 | struct pcmcia_device *p_dev; | |
7eff2e7a | 918 | int i; |
840c2ac5 DB |
919 | u32 hash[4] = { 0, 0, 0, 0}; |
920 | ||
921 | if (!dev) | |
922 | return -ENODEV; | |
923 | ||
924 | p_dev = to_pcmcia_dev(dev); | |
925 | ||
926 | /* calculate hashes */ | |
9fea84f4 | 927 | for (i = 0; i < 4; i++) { |
840c2ac5 DB |
928 | if (!p_dev->prod_id[i]) |
929 | continue; | |
930 | hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); | |
931 | } | |
932 | ||
7eff2e7a | 933 | if (add_uevent_var(env, "SOCKET_NO=%u", p_dev->socket->sock)) |
840c2ac5 DB |
934 | return -ENOMEM; |
935 | ||
7eff2e7a | 936 | if (add_uevent_var(env, "DEVICE_NO=%02X", p_dev->device_no)) |
840c2ac5 DB |
937 | return -ENOMEM; |
938 | ||
7eff2e7a | 939 | if (add_uevent_var(env, "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" |
312c004d KS |
940 | "pa%08Xpb%08Xpc%08Xpd%08X", |
941 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
942 | p_dev->has_card_id ? p_dev->card_id : 0, | |
943 | p_dev->has_func_id ? p_dev->func_id : 0, | |
944 | p_dev->func, | |
945 | p_dev->device_no, | |
946 | hash[0], | |
947 | hash[1], | |
948 | hash[2], | |
949 | hash[3])) | |
840c2ac5 DB |
950 | return -ENOMEM; |
951 | ||
840c2ac5 DB |
952 | return 0; |
953 | } | |
954 | ||
955 | #else | |
956 | ||
7eff2e7a | 957 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
958 | { |
959 | return -ENODEV; | |
960 | } | |
961 | ||
962 | #endif | |
963 | ||
3f8df781 AS |
964 | /************************ runtime PM support ***************************/ |
965 | ||
966 | static int pcmcia_dev_suspend(struct device *dev, pm_message_t state); | |
967 | static int pcmcia_dev_resume(struct device *dev); | |
968 | ||
969 | static int runtime_suspend(struct device *dev) | |
970 | { | |
971 | int rc; | |
972 | ||
8e9394ce | 973 | device_lock(dev); |
3f8df781 | 974 | rc = pcmcia_dev_suspend(dev, PMSG_SUSPEND); |
8e9394ce | 975 | device_unlock(dev); |
3f8df781 AS |
976 | return rc; |
977 | } | |
978 | ||
933a838a | 979 | static int runtime_resume(struct device *dev) |
3f8df781 AS |
980 | { |
981 | int rc; | |
982 | ||
8e9394ce | 983 | device_lock(dev); |
3f8df781 | 984 | rc = pcmcia_dev_resume(dev); |
8e9394ce | 985 | device_unlock(dev); |
933a838a | 986 | return rc; |
3f8df781 AS |
987 | } |
988 | ||
1da177e4 LT |
989 | /************************ per-device sysfs output ***************************/ |
990 | ||
991 | #define pcmcia_device_attr(field, test, format) \ | |
e404e274 | 992 | static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
993 | { \ |
994 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
9fea84f4 | 995 | return p_dev->test ? sprintf(buf, format, p_dev->field) : -ENODEV; \ |
1da177e4 LT |
996 | } |
997 | ||
998 | #define pcmcia_device_stringattr(name, field) \ | |
e404e274 | 999 | static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1000 | { \ |
1001 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
9fea84f4 | 1002 | return p_dev->field ? sprintf(buf, "%s\n", p_dev->field) : -ENODEV; \ |
1da177e4 LT |
1003 | } |
1004 | ||
1005 | pcmcia_device_attr(func, socket, "0x%02x\n"); | |
1006 | pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); | |
1007 | pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); | |
1008 | pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); | |
1009 | pcmcia_device_stringattr(prod_id1, prod_id[0]); | |
1010 | pcmcia_device_stringattr(prod_id2, prod_id[1]); | |
1011 | pcmcia_device_stringattr(prod_id3, prod_id[2]); | |
1012 | pcmcia_device_stringattr(prod_id4, prod_id[3]); | |
1013 | ||
8f677ea0 DB |
1014 | static ssize_t pcmcia_show_resources(struct device *dev, |
1015 | struct device_attribute *attr, char *buf) | |
1016 | { | |
1017 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1018 | char *str = buf; | |
1019 | int i; | |
1020 | ||
1021 | for (i = 0; i < PCMCIA_NUM_RESOURCES; i++) | |
1022 | str += sprintf(str, "%pr\n", p_dev->resource[i]); | |
1023 | ||
1024 | return str - buf; | |
1025 | } | |
db1019ca DB |
1026 | |
1027 | static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf) | |
1028 | { | |
1029 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1030 | ||
f6fbe01a | 1031 | if (p_dev->suspended) |
db1019ca DB |
1032 | return sprintf(buf, "off\n"); |
1033 | else | |
1034 | return sprintf(buf, "on\n"); | |
1035 | } | |
1036 | ||
1037 | static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr, | |
1038 | const char *buf, size_t count) | |
1039 | { | |
1040 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1041 | int ret = 0; | |
1042 | ||
9fea84f4 DB |
1043 | if (!count) |
1044 | return -EINVAL; | |
db1019ca | 1045 | |
f6fbe01a | 1046 | if ((!p_dev->suspended) && !strncmp(buf, "off", 3)) |
3f8df781 | 1047 | ret = runtime_suspend(dev); |
f6fbe01a | 1048 | else if (p_dev->suspended && !strncmp(buf, "on", 2)) |
933a838a | 1049 | ret = runtime_resume(dev); |
db1019ca DB |
1050 | |
1051 | return ret ? ret : count; | |
1052 | } | |
1053 | ||
1054 | ||
3704511b | 1055 | static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) |
3248ff43 DB |
1056 | { |
1057 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1058 | int i; | |
1059 | u32 hash[4] = { 0, 0, 0, 0}; | |
1060 | ||
1061 | /* calculate hashes */ | |
9fea84f4 | 1062 | for (i = 0; i < 4; i++) { |
3248ff43 DB |
1063 | if (!p_dev->prod_id[i]) |
1064 | continue; | |
9fea84f4 DB |
1065 | hash[i] = crc32(0, p_dev->prod_id[i], |
1066 | strlen(p_dev->prod_id[i])); | |
3248ff43 DB |
1067 | } |
1068 | return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
1069 | "pa%08Xpb%08Xpc%08Xpd%08X\n", | |
1070 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1071 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1072 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1073 | p_dev->func, p_dev->device_no, | |
1074 | hash[0], hash[1], hash[2], hash[3]); | |
1075 | } | |
a5b55778 | 1076 | |
3248ff43 DB |
1077 | static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, |
1078 | struct device_attribute *attr, const char *buf, size_t count) | |
a5b55778 DB |
1079 | { |
1080 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
db1019ca DB |
1081 | |
1082 | if (!count) | |
1083 | return -EINVAL; | |
a5b55778 | 1084 | |
94a819f8 | 1085 | mutex_lock(&p_dev->socket->ops_mutex); |
a5b55778 | 1086 | p_dev->allow_func_id_match = 1; |
94a819f8 | 1087 | mutex_unlock(&p_dev->socket->ops_mutex); |
af461fc1 | 1088 | pcmcia_parse_uevents(p_dev->socket, PCMCIA_UEVENT_REQUERY); |
a5b55778 DB |
1089 | |
1090 | return count; | |
1091 | } | |
1092 | ||
1da177e4 LT |
1093 | static struct device_attribute pcmcia_dev_attrs[] = { |
1094 | __ATTR(function, 0444, func_show, NULL), | |
db1019ca | 1095 | __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state), |
8f677ea0 | 1096 | __ATTR(resources, 0444, pcmcia_show_resources, NULL), |
1da177e4 LT |
1097 | __ATTR_RO(func_id), |
1098 | __ATTR_RO(manf_id), | |
1099 | __ATTR_RO(card_id), | |
1100 | __ATTR_RO(prod_id1), | |
1101 | __ATTR_RO(prod_id2), | |
1102 | __ATTR_RO(prod_id3), | |
1103 | __ATTR_RO(prod_id4), | |
3248ff43 | 1104 | __ATTR_RO(modalias), |
a5b55778 | 1105 | __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), |
1da177e4 LT |
1106 | __ATTR_NULL, |
1107 | }; | |
1108 | ||
8e9e793d DB |
1109 | /* PM support, also needed for reset */ |
1110 | ||
9fea84f4 | 1111 | static int pcmcia_dev_suspend(struct device *dev, pm_message_t state) |
8e9e793d DB |
1112 | { |
1113 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1114 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1115 | int ret = 0; |
8e9e793d | 1116 | |
94a819f8 DB |
1117 | mutex_lock(&p_dev->socket->ops_mutex); |
1118 | if (p_dev->suspended) { | |
1119 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1120 | return 0; |
94a819f8 DB |
1121 | } |
1122 | p_dev->suspended = 1; | |
1123 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1124 | |
d50dbec3 | 1125 | dev_dbg(dev, "suspending\n"); |
d9d9ea01 | 1126 | |
8e9e793d DB |
1127 | if (dev->driver) |
1128 | p_drv = to_pcmcia_drv(dev->driver); | |
1129 | ||
e2d40963 DB |
1130 | if (!p_drv) |
1131 | goto out; | |
1132 | ||
1133 | if (p_drv->suspend) { | |
8661bb5b | 1134 | ret = p_drv->suspend(p_dev); |
d9d9ea01 | 1135 | if (ret) { |
ac449d6e DB |
1136 | dev_printk(KERN_ERR, dev, |
1137 | "pcmcia: device %s (driver %s) did " | |
1138 | "not want to go to sleep (%d)\n", | |
1139 | p_dev->devname, p_drv->drv.name, ret); | |
94a819f8 DB |
1140 | mutex_lock(&p_dev->socket->ops_mutex); |
1141 | p_dev->suspended = 0; | |
1142 | mutex_unlock(&p_dev->socket->ops_mutex); | |
f6fbe01a | 1143 | goto out; |
d9d9ea01 | 1144 | } |
8661bb5b | 1145 | } |
8e9e793d | 1146 | |
d9d9ea01 | 1147 | if (p_dev->device_no == p_dev->func) { |
d50dbec3 | 1148 | dev_dbg(dev, "releasing configuration\n"); |
e2d40963 | 1149 | pcmcia_release_configuration(p_dev); |
d9d9ea01 | 1150 | } |
e2d40963 | 1151 | |
f6fbe01a | 1152 | out: |
f6fbe01a | 1153 | return ret; |
8e9e793d DB |
1154 | } |
1155 | ||
1156 | ||
9fea84f4 | 1157 | static int pcmcia_dev_resume(struct device *dev) |
8e9e793d DB |
1158 | { |
1159 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
9fea84f4 | 1160 | struct pcmcia_driver *p_drv = NULL; |
f6fbe01a | 1161 | int ret = 0; |
8e9e793d | 1162 | |
94a819f8 DB |
1163 | mutex_lock(&p_dev->socket->ops_mutex); |
1164 | if (!p_dev->suspended) { | |
1165 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1166 | return 0; |
94a819f8 DB |
1167 | } |
1168 | p_dev->suspended = 0; | |
1169 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1170 | |
d50dbec3 | 1171 | dev_dbg(dev, "resuming\n"); |
d9d9ea01 | 1172 | |
8e9e793d DB |
1173 | if (dev->driver) |
1174 | p_drv = to_pcmcia_drv(dev->driver); | |
1175 | ||
e2d40963 DB |
1176 | if (!p_drv) |
1177 | goto out; | |
1178 | ||
1179 | if (p_dev->device_no == p_dev->func) { | |
d50dbec3 | 1180 | dev_dbg(dev, "requesting configuration\n"); |
e2d40963 DB |
1181 | ret = pcmcia_request_configuration(p_dev, &p_dev->conf); |
1182 | if (ret) | |
1183 | goto out; | |
8661bb5b | 1184 | } |
8e9e793d | 1185 | |
e2d40963 DB |
1186 | if (p_drv->resume) |
1187 | ret = p_drv->resume(p_dev); | |
1188 | ||
f6fbe01a | 1189 | out: |
f6fbe01a | 1190 | return ret; |
8e9e793d DB |
1191 | } |
1192 | ||
1193 | ||
1194 | static int pcmcia_bus_suspend_callback(struct device *dev, void * _data) | |
1195 | { | |
1196 | struct pcmcia_socket *skt = _data; | |
1197 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1198 | ||
3f8df781 | 1199 | if (p_dev->socket != skt || p_dev->suspended) |
8e9e793d DB |
1200 | return 0; |
1201 | ||
3f8df781 | 1202 | return runtime_suspend(dev); |
8e9e793d DB |
1203 | } |
1204 | ||
1205 | static int pcmcia_bus_resume_callback(struct device *dev, void * _data) | |
1206 | { | |
1207 | struct pcmcia_socket *skt = _data; | |
1208 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1209 | ||
3f8df781 | 1210 | if (p_dev->socket != skt || !p_dev->suspended) |
8e9e793d DB |
1211 | return 0; |
1212 | ||
3f8df781 | 1213 | runtime_resume(dev); |
8e9e793d DB |
1214 | |
1215 | return 0; | |
1216 | } | |
1217 | ||
1218 | static int pcmcia_bus_resume(struct pcmcia_socket *skt) | |
1219 | { | |
d50dbec3 | 1220 | dev_dbg(&skt->dev, "resuming socket %d\n", skt->sock); |
8e9e793d DB |
1221 | bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback); |
1222 | return 0; | |
1223 | } | |
1224 | ||
1225 | static int pcmcia_bus_suspend(struct pcmcia_socket *skt) | |
1226 | { | |
d50dbec3 | 1227 | dev_dbg(&skt->dev, "suspending socket %d\n", skt->sock); |
8e9e793d DB |
1228 | if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt, |
1229 | pcmcia_bus_suspend_callback)) { | |
1230 | pcmcia_bus_resume(skt); | |
1231 | return -EIO; | |
1232 | } | |
1233 | return 0; | |
1234 | } | |
1235 | ||
7b24e798 DB |
1236 | static int pcmcia_bus_remove(struct pcmcia_socket *skt) |
1237 | { | |
1238 | atomic_set(&skt->present, 0); | |
1239 | pcmcia_card_remove(skt, NULL); | |
1da177e4 | 1240 | |
7b24e798 DB |
1241 | mutex_lock(&skt->ops_mutex); |
1242 | destroy_cis_cache(skt); | |
1243 | pcmcia_cleanup_irq(skt); | |
1244 | mutex_unlock(&skt->ops_mutex); | |
1da177e4 | 1245 | |
7b24e798 DB |
1246 | return 0; |
1247 | } | |
9fea84f4 | 1248 | |
7b24e798 DB |
1249 | static int pcmcia_bus_add(struct pcmcia_socket *skt) |
1250 | { | |
1251 | atomic_set(&skt->present, 1); | |
1da177e4 | 1252 | |
7b24e798 | 1253 | mutex_lock(&skt->ops_mutex); |
ce3f9d71 | 1254 | skt->pcmcia_pfc = 0; |
7b24e798 DB |
1255 | destroy_cis_cache(skt); /* to be on the safe side... */ |
1256 | mutex_unlock(&skt->ops_mutex); | |
1da177e4 | 1257 | |
7b24e798 | 1258 | pcmcia_card_add(skt); |
1da177e4 | 1259 | |
7b24e798 DB |
1260 | return 0; |
1261 | } | |
1617406a | 1262 | |
7b24e798 DB |
1263 | static int pcmcia_bus_early_resume(struct pcmcia_socket *skt) |
1264 | { | |
1265 | if (!verify_cis_cache(skt)) { | |
1266 | pcmcia_put_socket(skt); | |
1267 | return 0; | |
1268 | } | |
1da177e4 | 1269 | |
7b24e798 | 1270 | dev_dbg(&skt->dev, "cis mismatch - different card\n"); |
f8cfa618 | 1271 | |
7b24e798 DB |
1272 | /* first, remove the card */ |
1273 | pcmcia_bus_remove(skt); | |
88b060d6 | 1274 | |
7b24e798 DB |
1275 | mutex_lock(&skt->ops_mutex); |
1276 | destroy_cis_cache(skt); | |
1277 | kfree(skt->fake_cis); | |
1278 | skt->fake_cis = NULL; | |
1279 | skt->functions = 0; | |
1280 | mutex_unlock(&skt->ops_mutex); | |
1da177e4 | 1281 | |
7b24e798 DB |
1282 | /* now, add the new card */ |
1283 | pcmcia_bus_add(skt); | |
1284 | return 0; | |
1285 | } | |
dc109497 | 1286 | |
1da177e4 | 1287 | |
04de0816 DB |
1288 | /* |
1289 | * NOTE: This is racy. There's no guarantee the card will still be | |
1290 | * physically present, even if the call to this function returns | |
1291 | * non-NULL. Furthermore, the device driver most likely is unbound | |
1292 | * almost immediately, so the timeframe where pcmcia_dev_present | |
1293 | * returns NULL is probably really really small. | |
1294 | */ | |
9fea84f4 | 1295 | struct pcmcia_device *pcmcia_dev_present(struct pcmcia_device *_p_dev) |
9940ec36 DB |
1296 | { |
1297 | struct pcmcia_device *p_dev; | |
1298 | struct pcmcia_device *ret = NULL; | |
1299 | ||
1300 | p_dev = pcmcia_get_dev(_p_dev); | |
1301 | if (!p_dev) | |
1302 | return NULL; | |
1303 | ||
04de0816 DB |
1304 | if (atomic_read(&p_dev->socket->present) != 0) |
1305 | ret = p_dev; | |
9940ec36 | 1306 | |
9940ec36 DB |
1307 | pcmcia_put_dev(p_dev); |
1308 | return ret; | |
1309 | } | |
1310 | EXPORT_SYMBOL(pcmcia_dev_present); | |
1311 | ||
1312 | ||
90c6cdd1 DB |
1313 | static struct pcmcia_callback pcmcia_bus_callback = { |
1314 | .owner = THIS_MODULE, | |
7b24e798 DB |
1315 | .add = pcmcia_bus_add, |
1316 | .remove = pcmcia_bus_remove, | |
af461fc1 | 1317 | .requery = pcmcia_requery, |
6e7b51a7 | 1318 | .validate = pccard_validate_cis, |
8e9e793d | 1319 | .suspend = pcmcia_bus_suspend, |
7b24e798 | 1320 | .early_resume = pcmcia_bus_early_resume, |
8e9e793d | 1321 | .resume = pcmcia_bus_resume, |
90c6cdd1 DB |
1322 | }; |
1323 | ||
87373318 | 1324 | static int __devinit pcmcia_bus_add_socket(struct device *dev, |
d8539d81 | 1325 | struct class_interface *class_intf) |
1da177e4 | 1326 | { |
87373318 | 1327 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 LT |
1328 | int ret; |
1329 | ||
dc109497 DB |
1330 | socket = pcmcia_get_socket(socket); |
1331 | if (!socket) { | |
ac449d6e DB |
1332 | dev_printk(KERN_ERR, dev, |
1333 | "PCMCIA obtaining reference to socket failed\n"); | |
1da177e4 LT |
1334 | return -ENODEV; |
1335 | } | |
1336 | ||
6e7b51a7 DB |
1337 | ret = sysfs_create_bin_file(&dev->kobj, &pccard_cis_attr); |
1338 | if (ret) { | |
1339 | dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n"); | |
1340 | pcmcia_put_socket(socket); | |
1341 | return ret; | |
1342 | } | |
1343 | ||
dc109497 | 1344 | INIT_LIST_HEAD(&socket->devices_list); |
ce3f9d71 | 1345 | socket->pcmcia_pfc = 0; |
dc109497 | 1346 | socket->device_count = 0; |
e4f1ac21 | 1347 | atomic_set(&socket->present, 0); |
1da177e4 | 1348 | |
90c6cdd1 | 1349 | ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback); |
1da177e4 | 1350 | if (ret) { |
ac449d6e | 1351 | dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n"); |
dc109497 | 1352 | pcmcia_put_socket(socket); |
9fea84f4 | 1353 | return ret; |
1da177e4 LT |
1354 | } |
1355 | ||
1356 | return 0; | |
1357 | } | |
1358 | ||
87373318 | 1359 | static void pcmcia_bus_remove_socket(struct device *dev, |
d8539d81 | 1360 | struct class_interface *class_intf) |
1da177e4 | 1361 | { |
87373318 | 1362 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 | 1363 | |
dc109497 | 1364 | if (!socket) |
1da177e4 LT |
1365 | return; |
1366 | ||
1367 | pccard_register_pcmcia(socket, NULL); | |
1368 | ||
dfbc9e9d | 1369 | /* unregister any unbound devices */ |
8e4d9dcb | 1370 | mutex_lock(&socket->skt_mutex); |
dfbc9e9d | 1371 | pcmcia_card_remove(socket, NULL); |
180c33ee | 1372 | release_cis_mem(socket); |
8e4d9dcb | 1373 | mutex_unlock(&socket->skt_mutex); |
dfbc9e9d | 1374 | |
6e7b51a7 DB |
1375 | sysfs_remove_bin_file(&dev->kobj, &pccard_cis_attr); |
1376 | ||
dc109497 | 1377 | pcmcia_put_socket(socket); |
1da177e4 LT |
1378 | |
1379 | return; | |
1380 | } | |
1381 | ||
1382 | ||
1383 | /* the pcmcia_bus_interface is used to handle pcmcia socket devices */ | |
ed49f5d0 | 1384 | static struct class_interface pcmcia_bus_interface __refdata = { |
1da177e4 | 1385 | .class = &pcmcia_socket_class, |
87373318 GKH |
1386 | .add_dev = &pcmcia_bus_add_socket, |
1387 | .remove_dev = &pcmcia_bus_remove_socket, | |
1da177e4 LT |
1388 | }; |
1389 | ||
1390 | ||
e7a480d2 | 1391 | struct bus_type pcmcia_bus_type = { |
1da177e4 | 1392 | .name = "pcmcia", |
312c004d | 1393 | .uevent = pcmcia_bus_uevent, |
1da177e4 LT |
1394 | .match = pcmcia_bus_match, |
1395 | .dev_attrs = pcmcia_dev_attrs, | |
1d0baa3a RK |
1396 | .probe = pcmcia_device_probe, |
1397 | .remove = pcmcia_device_remove, | |
8e9e793d DB |
1398 | .suspend = pcmcia_dev_suspend, |
1399 | .resume = pcmcia_dev_resume, | |
1da177e4 | 1400 | }; |
1da177e4 LT |
1401 | |
1402 | ||
1403 | static int __init init_pcmcia_bus(void) | |
1404 | { | |
ace7d477 RD |
1405 | int ret; |
1406 | ||
ace7d477 RD |
1407 | ret = bus_register(&pcmcia_bus_type); |
1408 | if (ret < 0) { | |
1409 | printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret); | |
1410 | return ret; | |
1411 | } | |
1412 | ret = class_interface_register(&pcmcia_bus_interface); | |
1413 | if (ret < 0) { | |
1414 | printk(KERN_WARNING | |
1415 | "pcmcia: class_interface_register error: %d\n", ret); | |
1416 | bus_unregister(&pcmcia_bus_type); | |
1417 | return ret; | |
1418 | } | |
1da177e4 | 1419 | |
1da177e4 LT |
1420 | return 0; |
1421 | } | |
9fea84f4 | 1422 | fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that |
1da177e4 LT |
1423 | * pcmcia_socket_class is already registered */ |
1424 | ||
1425 | ||
1426 | static void __exit exit_pcmcia_bus(void) | |
1427 | { | |
e7a480d2 | 1428 | class_interface_unregister(&pcmcia_bus_interface); |
1da177e4 LT |
1429 | |
1430 | bus_unregister(&pcmcia_bus_type); | |
1431 | } | |
1432 | module_exit(exit_pcmcia_bus); | |
1433 | ||
1434 | ||
1da177e4 | 1435 | MODULE_ALIAS("ds"); |