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 | |
8661bb5b | 13 | * (C) 2003 - 2006 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> |
1da177e4 | 27 | |
1da177e4 LT |
28 | #include <pcmcia/cs_types.h> |
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 | ||
9fea84f4 | 215 | 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 | ||
e7a480d2 | 224 | 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); |
aa584ca4 | 296 | if ((s->pcmcia_state.has_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); |
9fea84f4 | 337 | p_dev->_removed = 1; |
00ce99ff | 338 | mutex_unlock(&s->ops_mutex); |
d6ff5a85 | 339 | |
d50dbec3 | 340 | dev_dbg(&p_dev->dev, "unregistering device\n"); |
d6ff5a85 DB |
341 | device_unregister(&p_dev->dev); |
342 | } | |
343 | ||
344 | return; | |
345 | } | |
346 | ||
9fea84f4 | 347 | static int pcmcia_device_remove(struct device *dev) |
1da177e4 LT |
348 | { |
349 | struct pcmcia_device *p_dev; | |
350 | struct pcmcia_driver *p_drv; | |
cc3b4866 | 351 | int i; |
1da177e4 | 352 | |
1da177e4 LT |
353 | p_dev = to_pcmcia_dev(dev); |
354 | p_drv = to_pcmcia_drv(dev->driver); | |
d6ff5a85 | 355 | |
d50dbec3 | 356 | dev_dbg(dev, "removing device\n"); |
d9d9ea01 | 357 | |
d6ff5a85 DB |
358 | /* If we're removing the primary module driving a |
359 | * pseudo multi-function card, we need to unbind | |
360 | * all devices | |
361 | */ | |
aa584ca4 | 362 | if ((p_dev->socket->pcmcia_state.has_pfc) && |
e6e4f397 | 363 | (p_dev->socket->device_count > 0) && |
d6ff5a85 DB |
364 | (p_dev->device_no == 0)) |
365 | pcmcia_card_remove(p_dev->socket, p_dev); | |
366 | ||
367 | /* detach the "instance" */ | |
f3990715 DB |
368 | if (!p_drv) |
369 | return 0; | |
1da177e4 | 370 | |
f3990715 | 371 | if (p_drv->remove) |
9fea84f4 | 372 | p_drv->remove(p_dev); |
cc3b4866 | 373 | |
a0aab143 DB |
374 | p_dev->dev_node = NULL; |
375 | ||
f3990715 | 376 | /* check for proper unloading */ |
e2d40963 | 377 | if (p_dev->_irq || p_dev->_io || p_dev->_locked) |
ac449d6e DB |
378 | dev_printk(KERN_INFO, dev, |
379 | "pcmcia: driver %s did not release config properly\n", | |
380 | p_drv->drv.name); | |
cc3b4866 | 381 | |
f3990715 | 382 | for (i = 0; i < MAX_WIN; i++) |
e2d40963 | 383 | if (p_dev->_win & CLIENT_WIN_REQ(i)) |
ac449d6e DB |
384 | dev_printk(KERN_INFO, dev, |
385 | "pcmcia: driver %s did not release window properly\n", | |
386 | p_drv->drv.name); | |
cc3b4866 | 387 | |
f3990715 DB |
388 | /* references from pcmcia_probe_device */ |
389 | pcmcia_put_dev(p_dev); | |
390 | module_put(p_drv->owner); | |
1da177e4 LT |
391 | |
392 | return 0; | |
393 | } | |
394 | ||
395 | ||
1da177e4 LT |
396 | /* |
397 | * pcmcia_device_query -- determine information about a pcmcia device | |
398 | */ | |
399 | static int pcmcia_device_query(struct pcmcia_device *p_dev) | |
400 | { | |
401 | cistpl_manfid_t manf_id; | |
402 | cistpl_funcid_t func_id; | |
76fa82fb | 403 | cistpl_vers_1_t *vers1; |
1da177e4 LT |
404 | unsigned int i; |
405 | ||
76fa82fb IM |
406 | vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL); |
407 | if (!vers1) | |
408 | return -ENOMEM; | |
409 | ||
84897fc0 | 410 | if (!pccard_read_tuple(p_dev->socket, BIND_FN_ALL, |
1da177e4 | 411 | CISTPL_MANFID, &manf_id)) { |
af461fc1 | 412 | mutex_lock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
413 | p_dev->manf_id = manf_id.manf; |
414 | p_dev->card_id = manf_id.card; | |
415 | p_dev->has_manf_id = 1; | |
416 | p_dev->has_card_id = 1; | |
af461fc1 | 417 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
418 | } |
419 | ||
420 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, | |
421 | CISTPL_FUNCID, &func_id)) { | |
af461fc1 | 422 | mutex_lock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
423 | p_dev->func_id = func_id.func; |
424 | p_dev->has_func_id = 1; | |
af461fc1 | 425 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
426 | } else { |
427 | /* rule of thumb: cards with no FUNCID, but with | |
428 | * common memory device geometry information, are | |
429 | * probably memory cards (from pcmcia-cs) */ | |
76fa82fb IM |
430 | cistpl_device_geo_t *devgeo; |
431 | ||
432 | devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL); | |
433 | if (!devgeo) { | |
434 | kfree(vers1); | |
435 | return -ENOMEM; | |
436 | } | |
1da177e4 | 437 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
76fa82fb | 438 | CISTPL_DEVICE_GEO, devgeo)) { |
d50dbec3 | 439 | dev_dbg(&p_dev->dev, |
ac449d6e DB |
440 | "mem device geometry probably means " |
441 | "FUNCID_MEMORY\n"); | |
af461fc1 | 442 | mutex_lock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
443 | p_dev->func_id = CISTPL_FUNCID_MEMORY; |
444 | p_dev->has_func_id = 1; | |
af461fc1 | 445 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 | 446 | } |
76fa82fb | 447 | kfree(devgeo); |
1da177e4 LT |
448 | } |
449 | ||
84897fc0 | 450 | if (!pccard_read_tuple(p_dev->socket, BIND_FN_ALL, CISTPL_VERS_1, |
76fa82fb | 451 | vers1)) { |
af461fc1 | 452 | mutex_lock(&p_dev->socket->ops_mutex); |
c5e09528 | 453 | for (i = 0; i < min_t(unsigned int, 4, vers1->ns); i++) { |
1da177e4 LT |
454 | char *tmp; |
455 | unsigned int length; | |
44961a03 | 456 | char *new; |
1da177e4 | 457 | |
76fa82fb | 458 | tmp = vers1->str + vers1->ofs[i]; |
1da177e4 LT |
459 | |
460 | length = strlen(tmp) + 1; | |
6e3d4f25 | 461 | if ((length < 2) || (length > 255)) |
1da177e4 LT |
462 | continue; |
463 | ||
44961a03 DB |
464 | new = kmalloc(sizeof(char) * length, GFP_KERNEL); |
465 | if (!new) | |
1da177e4 LT |
466 | continue; |
467 | ||
44961a03 DB |
468 | new = strncpy(new, tmp, length); |
469 | ||
470 | tmp = p_dev->prod_id[i]; | |
471 | p_dev->prod_id[i] = new; | |
472 | kfree(tmp); | |
1da177e4 | 473 | } |
af461fc1 | 474 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
475 | } |
476 | ||
76fa82fb | 477 | kfree(vers1); |
1da177e4 LT |
478 | return 0; |
479 | } | |
480 | ||
481 | ||
482 | /* device_add_lock is needed to avoid double registration by cardmgr and kernel. | |
483 | * Serializes pcmcia_device_add; will most likely be removed in future. | |
484 | * | |
485 | * While it has the caveat that adding new PCMCIA devices inside(!) device_register() | |
486 | * won't work, this doesn't matter much at the moment: the driver core doesn't | |
487 | * support it either. | |
488 | */ | |
7fe908dd | 489 | static DEFINE_MUTEX(device_add_lock); |
1da177e4 | 490 | |
9fea84f4 | 491 | struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int function) |
1da177e4 | 492 | { |
360b65b9 | 493 | struct pcmcia_device *p_dev, *tmp_dev; |
44961a03 | 494 | int i; |
1da177e4 | 495 | |
dc109497 | 496 | s = pcmcia_get_socket(s); |
1da177e4 LT |
497 | if (!s) |
498 | return NULL; | |
499 | ||
7fe908dd | 500 | mutex_lock(&device_add_lock); |
1da177e4 | 501 | |
d50dbec3 | 502 | pr_debug("adding device to %d, function %d\n", s->sock, function); |
d9d9ea01 | 503 | |
8084b372 | 504 | p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL); |
1da177e4 LT |
505 | if (!p_dev) |
506 | goto err_put; | |
1da177e4 | 507 | |
00ce99ff | 508 | mutex_lock(&s->ops_mutex); |
1da177e4 | 509 | p_dev->device_no = (s->device_count++); |
00ce99ff | 510 | mutex_unlock(&s->ops_mutex); |
e6e4f397 | 511 | |
aa584ca4 DB |
512 | /* max of 2 devices per card */ |
513 | if (p_dev->device_no >= 2) | |
e6e4f397 DB |
514 | goto err_free; |
515 | ||
516 | p_dev->socket = s; | |
1da177e4 LT |
517 | p_dev->func = function; |
518 | ||
519 | p_dev->dev.bus = &pcmcia_bus_type; | |
87373318 | 520 | p_dev->dev.parent = s->dev.parent; |
1da177e4 | 521 | p_dev->dev.release = pcmcia_release_dev; |
43d9f7fd JB |
522 | /* by default don't allow DMA */ |
523 | p_dev->dma_mask = DMA_MASK_NONE; | |
524 | p_dev->dev.dma_mask = &p_dev->dma_mask; | |
25096986 KS |
525 | dev_set_name(&p_dev->dev, "%d.%d", p_dev->socket->sock, p_dev->device_no); |
526 | if (!dev_name(&p_dev->dev)) | |
527 | goto err_free; | |
528 | p_dev->devname = kasprintf(GFP_KERNEL, "pcmcia%s", dev_name(&p_dev->dev)); | |
bd65a685 BG |
529 | if (!p_dev->devname) |
530 | goto err_free; | |
d50dbec3 | 531 | dev_dbg(&p_dev->dev, "devname is %s\n", p_dev->devname); |
1da177e4 | 532 | |
00ce99ff | 533 | mutex_lock(&s->ops_mutex); |
360b65b9 DB |
534 | |
535 | /* | |
536 | * p_dev->function_config must be the same for all card functions. | |
537 | * Note that this is serialized by the device_add_lock, so that | |
538 | * only one such struct will be created. | |
539 | */ | |
9fea84f4 DB |
540 | list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list) |
541 | if (p_dev->func == tmp_dev->func) { | |
360b65b9 | 542 | p_dev->function_config = tmp_dev->function_config; |
3e879f61 K |
543 | p_dev->io = tmp_dev->io; |
544 | p_dev->irq = tmp_dev->irq; | |
360b65b9 DB |
545 | kref_get(&p_dev->function_config->ref); |
546 | } | |
547 | ||
548 | /* Add to the list in pcmcia_bus_socket */ | |
6171b88b | 549 | list_add(&p_dev->socket_device_list, &s->devices_list); |
360b65b9 | 550 | |
00ce99ff | 551 | mutex_unlock(&s->ops_mutex); |
1da177e4 | 552 | |
360b65b9 | 553 | if (!p_dev->function_config) { |
d50dbec3 | 554 | dev_dbg(&p_dev->dev, "creating config_t\n"); |
360b65b9 DB |
555 | p_dev->function_config = kzalloc(sizeof(struct config_t), |
556 | GFP_KERNEL); | |
557 | if (!p_dev->function_config) | |
558 | goto err_unreg; | |
559 | kref_init(&p_dev->function_config->ref); | |
560 | } | |
561 | ||
ac449d6e DB |
562 | dev_printk(KERN_NOTICE, &p_dev->dev, |
563 | "pcmcia: registering new device %s\n", | |
564 | p_dev->devname); | |
807277cb | 565 | |
1ad275e3 DB |
566 | pcmcia_device_query(p_dev); |
567 | ||
360b65b9 DB |
568 | if (device_register(&p_dev->dev)) |
569 | goto err_unreg; | |
1da177e4 | 570 | |
7fe908dd | 571 | mutex_unlock(&device_add_lock); |
1da177e4 LT |
572 | |
573 | return p_dev; | |
574 | ||
360b65b9 | 575 | err_unreg: |
00ce99ff | 576 | mutex_lock(&s->ops_mutex); |
360b65b9 | 577 | list_del(&p_dev->socket_device_list); |
00ce99ff | 578 | mutex_unlock(&s->ops_mutex); |
360b65b9 | 579 | |
1da177e4 | 580 | err_free: |
00ce99ff | 581 | mutex_lock(&s->ops_mutex); |
e6e4f397 | 582 | s->device_count--; |
00ce99ff | 583 | mutex_unlock(&s->ops_mutex); |
e6e4f397 | 584 | |
44961a03 DB |
585 | for (i = 0; i < 4; i++) |
586 | kfree(p_dev->prod_id[i]); | |
bd65a685 | 587 | kfree(p_dev->devname); |
1da177e4 | 588 | kfree(p_dev); |
1da177e4 | 589 | err_put: |
7fe908dd | 590 | mutex_unlock(&device_add_lock); |
dc109497 | 591 | pcmcia_put_socket(s); |
1da177e4 LT |
592 | |
593 | return NULL; | |
594 | } | |
595 | ||
596 | ||
597 | static int pcmcia_card_add(struct pcmcia_socket *s) | |
598 | { | |
1da177e4 | 599 | cistpl_longlink_mfc_t mfc; |
c5081d5f | 600 | unsigned int no_funcs, i, no_chains; |
cfe5d809 | 601 | int ret = -EAGAIN; |
1da177e4 | 602 | |
cfe5d809 | 603 | mutex_lock(&s->ops_mutex); |
d9d9ea01 | 604 | if (!(s->resource_setup_done)) { |
d50dbec3 | 605 | dev_dbg(&s->dev, |
ac449d6e | 606 | "no resources available, delaying card_add\n"); |
cfe5d809 | 607 | mutex_unlock(&s->ops_mutex); |
1da177e4 | 608 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 609 | } |
1da177e4 | 610 | |
d9d9ea01 | 611 | if (pcmcia_validate_mem(s)) { |
d50dbec3 | 612 | dev_dbg(&s->dev, "validating mem resources failed, " |
d9d9ea01 | 613 | "delaying card_add\n"); |
cfe5d809 | 614 | mutex_unlock(&s->ops_mutex); |
de75914e | 615 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 616 | } |
cfe5d809 | 617 | mutex_unlock(&s->ops_mutex); |
de75914e | 618 | |
84897fc0 | 619 | ret = pccard_validate_cis(s, &no_chains); |
c5081d5f | 620 | if (ret || !no_chains) { |
d50dbec3 | 621 | dev_dbg(&s->dev, "invalid CIS or invalid resources\n"); |
1da177e4 LT |
622 | return -ENODEV; |
623 | } | |
624 | ||
625 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
626 | no_funcs = mfc.nfn; | |
627 | else | |
628 | no_funcs = 1; | |
1d2c9042 | 629 | s->functions = no_funcs; |
1da177e4 | 630 | |
9fea84f4 | 631 | for (i = 0; i < no_funcs; i++) |
dc109497 | 632 | pcmcia_device_add(s, i); |
1da177e4 | 633 | |
9fea84f4 | 634 | return ret; |
1da177e4 LT |
635 | } |
636 | ||
637 | ||
af461fc1 | 638 | static int pcmcia_requery_callback(struct device *dev, void * _data) |
ff1fa9ef | 639 | { |
e2f0b534 | 640 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
d9d9ea01 | 641 | if (!p_dev->dev.driver) { |
d50dbec3 | 642 | dev_dbg(dev, "update device information\n"); |
e2f0b534 | 643 | pcmcia_device_query(p_dev); |
d9d9ea01 | 644 | } |
e2f0b534 DB |
645 | |
646 | return 0; | |
647 | } | |
648 | ||
aa584ca4 | 649 | |
af461fc1 | 650 | static void pcmcia_requery(struct pcmcia_socket *s) |
e2f0b534 | 651 | { |
aa584ca4 | 652 | int present, has_pfc; |
e2f0b534 | 653 | |
af461fc1 DB |
654 | mutex_lock(&s->ops_mutex); |
655 | present = s->pcmcia_state.present; | |
656 | mutex_unlock(&s->ops_mutex); | |
e2f0b534 | 657 | |
af461fc1 DB |
658 | if (!present) |
659 | return; | |
4ae1cbf1 | 660 | |
af461fc1 DB |
661 | if (s->functions == 0) { |
662 | pcmcia_card_add(s); | |
663 | return; | |
e2f0b534 DB |
664 | } |
665 | ||
666 | /* some device information might have changed because of a CIS | |
667 | * update or because we can finally read it correctly... so | |
668 | * determine it again, overwriting old values if necessary. */ | |
af461fc1 DB |
669 | bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery_callback); |
670 | ||
671 | /* if the CIS changed, we need to check whether the number of | |
672 | * functions changed. */ | |
673 | if (s->fake_cis) { | |
674 | int old_funcs, new_funcs; | |
675 | cistpl_longlink_mfc_t mfc; | |
676 | ||
677 | /* does this cis override add or remove functions? */ | |
678 | old_funcs = s->functions; | |
679 | ||
680 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, | |
681 | &mfc)) | |
682 | new_funcs = mfc.nfn; | |
683 | else | |
684 | new_funcs = 1; | |
685 | if (old_funcs > new_funcs) { | |
686 | pcmcia_card_remove(s, NULL); | |
687 | pcmcia_card_add(s); | |
688 | } else if (new_funcs > old_funcs) { | |
689 | s->functions = new_funcs; | |
690 | pcmcia_device_add(s, 1); | |
691 | } | |
692 | } | |
e2f0b534 | 693 | |
aa584ca4 DB |
694 | /* If the PCMCIA device consists of two pseudo devices, |
695 | * call pcmcia_device_add() -- which will fail if both | |
696 | * devices are already registered. */ | |
697 | mutex_lock(&s->ops_mutex); | |
698 | has_pfc = s->pcmcia_state.has_pfc; | |
699 | mutex_unlock(&s->ops_mutex); | |
700 | if (has_pfc) | |
701 | pcmcia_device_add(s, 0); | |
702 | ||
e2f0b534 DB |
703 | /* we re-scan all devices, not just the ones connected to this |
704 | * socket. This does not matter, though. */ | |
af461fc1 DB |
705 | if (bus_rescan_devices(&pcmcia_bus_type)) |
706 | dev_warn(&s->dev, "rescanning the bus failed\n"); | |
ff1fa9ef | 707 | } |
1ad275e3 | 708 | |
af461fc1 | 709 | |
1d2c9042 DB |
710 | #ifdef CONFIG_PCMCIA_LOAD_CIS |
711 | ||
712 | /** | |
713 | * pcmcia_load_firmware - load CIS from userspace if device-provided is broken | |
78187865 RD |
714 | * @dev: the pcmcia device which needs a CIS override |
715 | * @filename: requested filename in /lib/firmware/ | |
1d2c9042 DB |
716 | * |
717 | * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if | |
718 | * the one provided by the card is broken. The firmware files reside in | |
719 | * /lib/firmware/ in userspace. | |
720 | */ | |
721 | static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
722 | { | |
723 | struct pcmcia_socket *s = dev->socket; | |
724 | const struct firmware *fw; | |
1d2c9042 | 725 | int ret = -ENOMEM; |
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 | ||
1d2c9042 DB |
748 | |
749 | /* update information */ | |
750 | pcmcia_device_query(dev); | |
751 | ||
aa584ca4 DB |
752 | /* requery (as number of functions might have changed) */ |
753 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY); | |
1d2c9042 DB |
754 | } |
755 | release: | |
756 | release_firmware(fw); | |
757 | ||
9fea84f4 | 758 | return ret; |
1d2c9042 DB |
759 | } |
760 | ||
761 | #else /* !CONFIG_PCMCIA_LOAD_CIS */ | |
762 | ||
763 | static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
764 | { | |
765 | return -ENODEV; | |
766 | } | |
767 | ||
768 | #endif | |
769 | ||
770 | ||
1ad275e3 DB |
771 | static inline int pcmcia_devmatch(struct pcmcia_device *dev, |
772 | struct pcmcia_device_id *did) | |
773 | { | |
774 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) { | |
775 | if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id)) | |
776 | return 0; | |
777 | } | |
778 | ||
779 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) { | |
780 | if ((!dev->has_card_id) || (dev->card_id != did->card_id)) | |
781 | return 0; | |
782 | } | |
783 | ||
784 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) { | |
785 | if (dev->func != did->function) | |
786 | return 0; | |
787 | } | |
788 | ||
789 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) { | |
790 | if (!dev->prod_id[0]) | |
791 | return 0; | |
792 | if (strcmp(did->prod_id[0], dev->prod_id[0])) | |
793 | return 0; | |
794 | } | |
795 | ||
796 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) { | |
797 | if (!dev->prod_id[1]) | |
798 | return 0; | |
799 | if (strcmp(did->prod_id[1], dev->prod_id[1])) | |
800 | return 0; | |
801 | } | |
802 | ||
803 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) { | |
804 | if (!dev->prod_id[2]) | |
805 | return 0; | |
806 | if (strcmp(did->prod_id[2], dev->prod_id[2])) | |
807 | return 0; | |
808 | } | |
809 | ||
810 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) { | |
811 | if (!dev->prod_id[3]) | |
812 | return 0; | |
813 | if (strcmp(did->prod_id[3], dev->prod_id[3])) | |
814 | return 0; | |
815 | } | |
816 | ||
817 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { | |
1ad275e3 DB |
818 | if (dev->device_no != did->device_no) |
819 | return 0; | |
aa584ca4 DB |
820 | mutex_lock(&dev->socket->ops_mutex); |
821 | dev->socket->pcmcia_state.has_pfc = 1; | |
822 | mutex_unlock(&dev->socket->ops_mutex); | |
1ad275e3 DB |
823 | } |
824 | ||
825 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { | |
94a819f8 DB |
826 | int ret; |
827 | ||
1ad275e3 DB |
828 | if ((!dev->has_func_id) || (dev->func_id != did->func_id)) |
829 | return 0; | |
830 | ||
831 | /* if this is a pseudo-multi-function device, | |
832 | * we need explicit matches */ | |
833 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) | |
834 | return 0; | |
835 | if (dev->device_no) | |
836 | return 0; | |
837 | ||
838 | /* also, FUNC_ID matching needs to be activated by userspace | |
839 | * after it has re-checked that there is no possible module | |
840 | * with a prod_id/manf_id/card_id match. | |
841 | */ | |
94a819f8 DB |
842 | mutex_lock(&dev->socket->ops_mutex); |
843 | ret = dev->allow_func_id_match; | |
844 | mutex_unlock(&dev->socket->ops_mutex); | |
845 | ||
846 | if (!ret) { | |
847 | dev_dbg(&dev->dev, | |
848 | "skipping FUNC_ID match until userspace ACK\n"); | |
1ad275e3 | 849 | return 0; |
94a819f8 | 850 | } |
1ad275e3 DB |
851 | } |
852 | ||
ea7b3882 | 853 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { |
d50dbec3 | 854 | dev_dbg(&dev->dev, "device needs a fake CIS\n"); |
daa9517d DB |
855 | if (!dev->socket->fake_cis) |
856 | pcmcia_load_firmware(dev, did->cisfile); | |
857 | ||
858 | if (!dev->socket->fake_cis) | |
ea7b3882 | 859 | return 0; |
ea7b3882 DB |
860 | } |
861 | ||
f602ff7e DB |
862 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { |
863 | int i; | |
9fea84f4 | 864 | for (i = 0; i < 4; i++) |
f602ff7e DB |
865 | if (dev->prod_id[i]) |
866 | return 0; | |
867 | if (dev->has_manf_id || dev->has_card_id || dev->has_func_id) | |
868 | return 0; | |
869 | } | |
870 | ||
1ad275e3 DB |
871 | return 1; |
872 | } | |
873 | ||
874 | ||
9fea84f4 DB |
875 | static int pcmcia_bus_match(struct device *dev, struct device_driver *drv) |
876 | { | |
877 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
878 | struct pcmcia_driver *p_drv = to_pcmcia_drv(drv); | |
1ad275e3 | 879 | struct pcmcia_device_id *did = p_drv->id_table; |
6179b556 BW |
880 | struct pcmcia_dynid *dynid; |
881 | ||
882 | /* match dynamic devices first */ | |
3f565232 | 883 | mutex_lock(&p_drv->dynids.lock); |
6179b556 | 884 | list_for_each_entry(dynid, &p_drv->dynids.list, node) { |
d50dbec3 | 885 | dev_dbg(dev, "trying to match to %s\n", drv->name); |
6179b556 | 886 | if (pcmcia_devmatch(p_dev, &dynid->id)) { |
d50dbec3 | 887 | dev_dbg(dev, "matched to %s\n", drv->name); |
3f565232 | 888 | mutex_unlock(&p_drv->dynids.lock); |
6179b556 BW |
889 | return 1; |
890 | } | |
891 | } | |
3f565232 | 892 | mutex_unlock(&p_drv->dynids.lock); |
1da177e4 | 893 | |
0e0fad8f | 894 | #ifdef CONFIG_PCMCIA_IOCTL |
1da177e4 | 895 | /* matching by cardmgr */ |
d9d9ea01 | 896 | if (p_dev->cardmgr == p_drv) { |
d50dbec3 | 897 | dev_dbg(dev, "cardmgr matched to %s\n", drv->name); |
1da177e4 | 898 | return 1; |
d9d9ea01 | 899 | } |
0e0fad8f | 900 | #endif |
1da177e4 | 901 | |
1ad275e3 | 902 | while (did && did->match_flags) { |
d50dbec3 | 903 | dev_dbg(dev, "trying to match to %s\n", drv->name); |
d9d9ea01 | 904 | if (pcmcia_devmatch(p_dev, did)) { |
d50dbec3 | 905 | dev_dbg(dev, "matched to %s\n", drv->name); |
1ad275e3 | 906 | return 1; |
d9d9ea01 | 907 | } |
1ad275e3 DB |
908 | did++; |
909 | } | |
910 | ||
1da177e4 LT |
911 | return 0; |
912 | } | |
913 | ||
840c2ac5 DB |
914 | #ifdef CONFIG_HOTPLUG |
915 | ||
7eff2e7a | 916 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
917 | { |
918 | struct pcmcia_device *p_dev; | |
7eff2e7a | 919 | int i; |
840c2ac5 DB |
920 | u32 hash[4] = { 0, 0, 0, 0}; |
921 | ||
922 | if (!dev) | |
923 | return -ENODEV; | |
924 | ||
925 | p_dev = to_pcmcia_dev(dev); | |
926 | ||
927 | /* calculate hashes */ | |
9fea84f4 | 928 | for (i = 0; i < 4; i++) { |
840c2ac5 DB |
929 | if (!p_dev->prod_id[i]) |
930 | continue; | |
931 | hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); | |
932 | } | |
933 | ||
7eff2e7a | 934 | if (add_uevent_var(env, "SOCKET_NO=%u", p_dev->socket->sock)) |
840c2ac5 DB |
935 | return -ENOMEM; |
936 | ||
7eff2e7a | 937 | if (add_uevent_var(env, "DEVICE_NO=%02X", p_dev->device_no)) |
840c2ac5 DB |
938 | return -ENOMEM; |
939 | ||
7eff2e7a | 940 | if (add_uevent_var(env, "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" |
312c004d KS |
941 | "pa%08Xpb%08Xpc%08Xpd%08X", |
942 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
943 | p_dev->has_card_id ? p_dev->card_id : 0, | |
944 | p_dev->has_func_id ? p_dev->func_id : 0, | |
945 | p_dev->func, | |
946 | p_dev->device_no, | |
947 | hash[0], | |
948 | hash[1], | |
949 | hash[2], | |
950 | hash[3])) | |
840c2ac5 DB |
951 | return -ENOMEM; |
952 | ||
840c2ac5 DB |
953 | return 0; |
954 | } | |
955 | ||
956 | #else | |
957 | ||
7eff2e7a | 958 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
959 | { |
960 | return -ENODEV; | |
961 | } | |
962 | ||
963 | #endif | |
964 | ||
3f8df781 AS |
965 | /************************ runtime PM support ***************************/ |
966 | ||
967 | static int pcmcia_dev_suspend(struct device *dev, pm_message_t state); | |
968 | static int pcmcia_dev_resume(struct device *dev); | |
969 | ||
970 | static int runtime_suspend(struct device *dev) | |
971 | { | |
972 | int rc; | |
973 | ||
974 | down(&dev->sem); | |
975 | rc = pcmcia_dev_suspend(dev, PMSG_SUSPEND); | |
976 | up(&dev->sem); | |
3f8df781 AS |
977 | return rc; |
978 | } | |
979 | ||
933a838a | 980 | static int runtime_resume(struct device *dev) |
3f8df781 AS |
981 | { |
982 | int rc; | |
983 | ||
984 | down(&dev->sem); | |
985 | rc = pcmcia_dev_resume(dev); | |
986 | up(&dev->sem); | |
933a838a | 987 | return rc; |
3f8df781 AS |
988 | } |
989 | ||
1da177e4 LT |
990 | /************************ per-device sysfs output ***************************/ |
991 | ||
992 | #define pcmcia_device_attr(field, test, format) \ | |
e404e274 | 993 | static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
994 | { \ |
995 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
9fea84f4 | 996 | return p_dev->test ? sprintf(buf, format, p_dev->field) : -ENODEV; \ |
1da177e4 LT |
997 | } |
998 | ||
999 | #define pcmcia_device_stringattr(name, field) \ | |
e404e274 | 1000 | static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1001 | { \ |
1002 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
9fea84f4 | 1003 | return p_dev->field ? sprintf(buf, "%s\n", p_dev->field) : -ENODEV; \ |
1da177e4 LT |
1004 | } |
1005 | ||
1006 | pcmcia_device_attr(func, socket, "0x%02x\n"); | |
1007 | pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); | |
1008 | pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); | |
1009 | pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); | |
1010 | pcmcia_device_stringattr(prod_id1, prod_id[0]); | |
1011 | pcmcia_device_stringattr(prod_id2, prod_id[1]); | |
1012 | pcmcia_device_stringattr(prod_id3, prod_id[2]); | |
1013 | pcmcia_device_stringattr(prod_id4, prod_id[3]); | |
1014 | ||
db1019ca DB |
1015 | |
1016 | static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf) | |
1017 | { | |
1018 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1019 | ||
f6fbe01a | 1020 | if (p_dev->suspended) |
db1019ca DB |
1021 | return sprintf(buf, "off\n"); |
1022 | else | |
1023 | return sprintf(buf, "on\n"); | |
1024 | } | |
1025 | ||
1026 | static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr, | |
1027 | const char *buf, size_t count) | |
1028 | { | |
1029 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1030 | int ret = 0; | |
1031 | ||
9fea84f4 DB |
1032 | if (!count) |
1033 | return -EINVAL; | |
db1019ca | 1034 | |
f6fbe01a | 1035 | if ((!p_dev->suspended) && !strncmp(buf, "off", 3)) |
3f8df781 | 1036 | ret = runtime_suspend(dev); |
f6fbe01a | 1037 | else if (p_dev->suspended && !strncmp(buf, "on", 2)) |
933a838a | 1038 | ret = runtime_resume(dev); |
db1019ca DB |
1039 | |
1040 | return ret ? ret : count; | |
1041 | } | |
1042 | ||
1043 | ||
3704511b | 1044 | static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) |
3248ff43 DB |
1045 | { |
1046 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1047 | int i; | |
1048 | u32 hash[4] = { 0, 0, 0, 0}; | |
1049 | ||
1050 | /* calculate hashes */ | |
9fea84f4 | 1051 | for (i = 0; i < 4; i++) { |
3248ff43 DB |
1052 | if (!p_dev->prod_id[i]) |
1053 | continue; | |
9fea84f4 DB |
1054 | hash[i] = crc32(0, p_dev->prod_id[i], |
1055 | strlen(p_dev->prod_id[i])); | |
3248ff43 DB |
1056 | } |
1057 | return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
1058 | "pa%08Xpb%08Xpc%08Xpd%08X\n", | |
1059 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1060 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1061 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1062 | p_dev->func, p_dev->device_no, | |
1063 | hash[0], hash[1], hash[2], hash[3]); | |
1064 | } | |
a5b55778 | 1065 | |
3248ff43 DB |
1066 | static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, |
1067 | struct device_attribute *attr, const char *buf, size_t count) | |
a5b55778 DB |
1068 | { |
1069 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
db1019ca DB |
1070 | |
1071 | if (!count) | |
1072 | return -EINVAL; | |
a5b55778 | 1073 | |
94a819f8 | 1074 | mutex_lock(&p_dev->socket->ops_mutex); |
a5b55778 | 1075 | p_dev->allow_func_id_match = 1; |
94a819f8 | 1076 | mutex_unlock(&p_dev->socket->ops_mutex); |
af461fc1 | 1077 | pcmcia_parse_uevents(p_dev->socket, PCMCIA_UEVENT_REQUERY); |
a5b55778 DB |
1078 | |
1079 | return count; | |
1080 | } | |
1081 | ||
1da177e4 LT |
1082 | static struct device_attribute pcmcia_dev_attrs[] = { |
1083 | __ATTR(function, 0444, func_show, NULL), | |
db1019ca | 1084 | __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state), |
1da177e4 LT |
1085 | __ATTR_RO(func_id), |
1086 | __ATTR_RO(manf_id), | |
1087 | __ATTR_RO(card_id), | |
1088 | __ATTR_RO(prod_id1), | |
1089 | __ATTR_RO(prod_id2), | |
1090 | __ATTR_RO(prod_id3), | |
1091 | __ATTR_RO(prod_id4), | |
3248ff43 | 1092 | __ATTR_RO(modalias), |
a5b55778 | 1093 | __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), |
1da177e4 LT |
1094 | __ATTR_NULL, |
1095 | }; | |
1096 | ||
8e9e793d DB |
1097 | /* PM support, also needed for reset */ |
1098 | ||
9fea84f4 | 1099 | static int pcmcia_dev_suspend(struct device *dev, pm_message_t state) |
8e9e793d DB |
1100 | { |
1101 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1102 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1103 | int ret = 0; |
8e9e793d | 1104 | |
94a819f8 DB |
1105 | mutex_lock(&p_dev->socket->ops_mutex); |
1106 | if (p_dev->suspended) { | |
1107 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1108 | return 0; |
94a819f8 DB |
1109 | } |
1110 | p_dev->suspended = 1; | |
1111 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1112 | |
d50dbec3 | 1113 | dev_dbg(dev, "suspending\n"); |
d9d9ea01 | 1114 | |
8e9e793d DB |
1115 | if (dev->driver) |
1116 | p_drv = to_pcmcia_drv(dev->driver); | |
1117 | ||
e2d40963 DB |
1118 | if (!p_drv) |
1119 | goto out; | |
1120 | ||
1121 | if (p_drv->suspend) { | |
8661bb5b | 1122 | ret = p_drv->suspend(p_dev); |
d9d9ea01 | 1123 | if (ret) { |
ac449d6e DB |
1124 | dev_printk(KERN_ERR, dev, |
1125 | "pcmcia: device %s (driver %s) did " | |
1126 | "not want to go to sleep (%d)\n", | |
1127 | p_dev->devname, p_drv->drv.name, ret); | |
94a819f8 DB |
1128 | mutex_lock(&p_dev->socket->ops_mutex); |
1129 | p_dev->suspended = 0; | |
1130 | mutex_unlock(&p_dev->socket->ops_mutex); | |
f6fbe01a | 1131 | goto out; |
d9d9ea01 | 1132 | } |
8661bb5b | 1133 | } |
8e9e793d | 1134 | |
d9d9ea01 | 1135 | if (p_dev->device_no == p_dev->func) { |
d50dbec3 | 1136 | dev_dbg(dev, "releasing configuration\n"); |
e2d40963 | 1137 | pcmcia_release_configuration(p_dev); |
d9d9ea01 | 1138 | } |
e2d40963 | 1139 | |
f6fbe01a | 1140 | out: |
f6fbe01a | 1141 | return ret; |
8e9e793d DB |
1142 | } |
1143 | ||
1144 | ||
9fea84f4 | 1145 | static int pcmcia_dev_resume(struct device *dev) |
8e9e793d DB |
1146 | { |
1147 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
9fea84f4 | 1148 | struct pcmcia_driver *p_drv = NULL; |
f6fbe01a | 1149 | int ret = 0; |
8e9e793d | 1150 | |
94a819f8 DB |
1151 | mutex_lock(&p_dev->socket->ops_mutex); |
1152 | if (!p_dev->suspended) { | |
1153 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1154 | return 0; |
94a819f8 DB |
1155 | } |
1156 | p_dev->suspended = 0; | |
1157 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1158 | |
d50dbec3 | 1159 | dev_dbg(dev, "resuming\n"); |
d9d9ea01 | 1160 | |
8e9e793d DB |
1161 | if (dev->driver) |
1162 | p_drv = to_pcmcia_drv(dev->driver); | |
1163 | ||
e2d40963 DB |
1164 | if (!p_drv) |
1165 | goto out; | |
1166 | ||
1167 | if (p_dev->device_no == p_dev->func) { | |
d50dbec3 | 1168 | dev_dbg(dev, "requesting configuration\n"); |
e2d40963 DB |
1169 | ret = pcmcia_request_configuration(p_dev, &p_dev->conf); |
1170 | if (ret) | |
1171 | goto out; | |
8661bb5b | 1172 | } |
8e9e793d | 1173 | |
e2d40963 DB |
1174 | if (p_drv->resume) |
1175 | ret = p_drv->resume(p_dev); | |
1176 | ||
f6fbe01a | 1177 | out: |
f6fbe01a | 1178 | return ret; |
8e9e793d DB |
1179 | } |
1180 | ||
1181 | ||
1182 | static int pcmcia_bus_suspend_callback(struct device *dev, void * _data) | |
1183 | { | |
1184 | struct pcmcia_socket *skt = _data; | |
1185 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1186 | ||
3f8df781 | 1187 | if (p_dev->socket != skt || p_dev->suspended) |
8e9e793d DB |
1188 | return 0; |
1189 | ||
3f8df781 | 1190 | return runtime_suspend(dev); |
8e9e793d DB |
1191 | } |
1192 | ||
1193 | static int pcmcia_bus_resume_callback(struct device *dev, void * _data) | |
1194 | { | |
1195 | struct pcmcia_socket *skt = _data; | |
1196 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1197 | ||
3f8df781 | 1198 | if (p_dev->socket != skt || !p_dev->suspended) |
8e9e793d DB |
1199 | return 0; |
1200 | ||
3f8df781 | 1201 | runtime_resume(dev); |
8e9e793d DB |
1202 | |
1203 | return 0; | |
1204 | } | |
1205 | ||
1206 | static int pcmcia_bus_resume(struct pcmcia_socket *skt) | |
1207 | { | |
d50dbec3 | 1208 | dev_dbg(&skt->dev, "resuming socket %d\n", skt->sock); |
8e9e793d DB |
1209 | bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback); |
1210 | return 0; | |
1211 | } | |
1212 | ||
1213 | static int pcmcia_bus_suspend(struct pcmcia_socket *skt) | |
1214 | { | |
d50dbec3 | 1215 | dev_dbg(&skt->dev, "suspending socket %d\n", skt->sock); |
8e9e793d DB |
1216 | if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt, |
1217 | pcmcia_bus_suspend_callback)) { | |
1218 | pcmcia_bus_resume(skt); | |
1219 | return -EIO; | |
1220 | } | |
1221 | return 0; | |
1222 | } | |
1223 | ||
1da177e4 | 1224 | |
1da177e4 LT |
1225 | /*====================================================================== |
1226 | ||
1227 | The card status event handler. | |
9fea84f4 | 1228 | |
1da177e4 LT |
1229 | ======================================================================*/ |
1230 | ||
1da177e4 LT |
1231 | /* Normally, the event is passed to individual drivers after |
1232 | * informing userspace. Only for CS_EVENT_CARD_REMOVAL this | |
1233 | * is inversed to maintain historic compatibility. | |
1234 | */ | |
1235 | ||
1236 | static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) | |
1237 | { | |
dc109497 | 1238 | struct pcmcia_socket *s = pcmcia_get_socket(skt); |
1da177e4 | 1239 | |
1617406a | 1240 | if (!s) { |
ac449d6e DB |
1241 | dev_printk(KERN_ERR, &skt->dev, |
1242 | "PCMCIA obtaining reference to socket " \ | |
1243 | "failed, event 0x%x lost!\n", event); | |
1617406a FM |
1244 | return -ENODEV; |
1245 | } | |
1246 | ||
d50dbec3 | 1247 | dev_dbg(&skt->dev, "ds_event(0x%06x, %d, 0x%p)\n", |
ac449d6e | 1248 | event, priority, skt); |
1da177e4 | 1249 | |
f8cfa618 | 1250 | switch (event) { |
1da177e4 | 1251 | case CS_EVENT_CARD_REMOVAL: |
00ce99ff | 1252 | mutex_lock(&s->ops_mutex); |
b5e43913 | 1253 | s->pcmcia_state.present = 0; |
00ce99ff | 1254 | mutex_unlock(&s->ops_mutex); |
d6ff5a85 | 1255 | pcmcia_card_remove(skt, NULL); |
dc109497 | 1256 | handle_event(skt, event); |
8680c4b3 | 1257 | mutex_lock(&s->ops_mutex); |
180c33ee | 1258 | destroy_cis_cache(s); |
8680c4b3 | 1259 | mutex_unlock(&s->ops_mutex); |
1da177e4 | 1260 | break; |
f8cfa618 | 1261 | |
1da177e4 | 1262 | case CS_EVENT_CARD_INSERTION: |
8680c4b3 | 1263 | mutex_lock(&s->ops_mutex); |
aa584ca4 | 1264 | s->pcmcia_state.has_pfc = 0; |
00ce99ff | 1265 | s->pcmcia_state.present = 1; |
180c33ee | 1266 | destroy_cis_cache(s); /* to be on the safe side... */ |
8680c4b3 | 1267 | mutex_unlock(&s->ops_mutex); |
1da177e4 | 1268 | pcmcia_card_add(skt); |
dc109497 | 1269 | handle_event(skt, event); |
1da177e4 LT |
1270 | break; |
1271 | ||
1272 | case CS_EVENT_EJECTION_REQUEST: | |
1da177e4 LT |
1273 | break; |
1274 | ||
8e9e793d | 1275 | case CS_EVENT_PM_RESUME: |
88b060d6 DB |
1276 | if (verify_cis_cache(skt) != 0) { |
1277 | dev_dbg(&skt->dev, "cis mismatch - different card\n"); | |
1278 | /* first, remove the card */ | |
1279 | ds_event(skt, CS_EVENT_CARD_REMOVAL, CS_EVENT_PRI_HIGH); | |
8680c4b3 | 1280 | mutex_lock(&s->ops_mutex); |
88b060d6 DB |
1281 | destroy_cis_cache(skt); |
1282 | kfree(skt->fake_cis); | |
1283 | skt->fake_cis = NULL; | |
8680c4b3 | 1284 | mutex_unlock(&s->ops_mutex); |
88b060d6 DB |
1285 | /* now, add the new card */ |
1286 | ds_event(skt, CS_EVENT_CARD_INSERTION, | |
1287 | CS_EVENT_PRI_LOW); | |
1288 | } | |
1289 | handle_event(skt, event); | |
1290 | break; | |
1291 | ||
1292 | case CS_EVENT_PM_SUSPEND: | |
8e9e793d DB |
1293 | case CS_EVENT_RESET_PHYSICAL: |
1294 | case CS_EVENT_CARD_RESET: | |
1da177e4 | 1295 | default: |
dc109497 | 1296 | handle_event(skt, event); |
1da177e4 LT |
1297 | break; |
1298 | } | |
1299 | ||
dc109497 DB |
1300 | pcmcia_put_socket(s); |
1301 | ||
1da177e4 LT |
1302 | return 0; |
1303 | } /* ds_event */ | |
1304 | ||
1305 | ||
9fea84f4 | 1306 | struct pcmcia_device *pcmcia_dev_present(struct pcmcia_device *_p_dev) |
9940ec36 DB |
1307 | { |
1308 | struct pcmcia_device *p_dev; | |
1309 | struct pcmcia_device *ret = NULL; | |
1310 | ||
1311 | p_dev = pcmcia_get_dev(_p_dev); | |
1312 | if (!p_dev) | |
1313 | return NULL; | |
1314 | ||
00ce99ff | 1315 | mutex_lock(&p_dev->socket->ops_mutex); |
9940ec36 DB |
1316 | if (!p_dev->socket->pcmcia_state.present) |
1317 | goto out; | |
1318 | ||
3d3de32f DB |
1319 | if (p_dev->socket->pcmcia_state.dead) |
1320 | goto out; | |
1321 | ||
9940ec36 DB |
1322 | if (p_dev->_removed) |
1323 | goto out; | |
1324 | ||
1325 | if (p_dev->suspended) | |
1326 | goto out; | |
1327 | ||
1328 | ret = p_dev; | |
1329 | out: | |
00ce99ff | 1330 | mutex_unlock(&p_dev->socket->ops_mutex); |
9940ec36 DB |
1331 | pcmcia_put_dev(p_dev); |
1332 | return ret; | |
1333 | } | |
1334 | EXPORT_SYMBOL(pcmcia_dev_present); | |
1335 | ||
1336 | ||
90c6cdd1 DB |
1337 | static struct pcmcia_callback pcmcia_bus_callback = { |
1338 | .owner = THIS_MODULE, | |
1339 | .event = ds_event, | |
af461fc1 | 1340 | .requery = pcmcia_requery, |
6e7b51a7 | 1341 | .validate = pccard_validate_cis, |
8e9e793d DB |
1342 | .suspend = pcmcia_bus_suspend, |
1343 | .resume = pcmcia_bus_resume, | |
90c6cdd1 DB |
1344 | }; |
1345 | ||
87373318 | 1346 | static int __devinit pcmcia_bus_add_socket(struct device *dev, |
d8539d81 | 1347 | struct class_interface *class_intf) |
1da177e4 | 1348 | { |
87373318 | 1349 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 LT |
1350 | int ret; |
1351 | ||
dc109497 DB |
1352 | socket = pcmcia_get_socket(socket); |
1353 | if (!socket) { | |
ac449d6e DB |
1354 | dev_printk(KERN_ERR, dev, |
1355 | "PCMCIA obtaining reference to socket failed\n"); | |
1da177e4 LT |
1356 | return -ENODEV; |
1357 | } | |
1358 | ||
6e7b51a7 DB |
1359 | ret = sysfs_create_bin_file(&dev->kobj, &pccard_cis_attr); |
1360 | if (ret) { | |
1361 | dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n"); | |
1362 | pcmcia_put_socket(socket); | |
1363 | return ret; | |
1364 | } | |
1365 | ||
e7a480d2 | 1366 | #ifdef CONFIG_PCMCIA_IOCTL |
dc109497 | 1367 | init_waitqueue_head(&socket->queue); |
e7a480d2 | 1368 | #endif |
dc109497 | 1369 | INIT_LIST_HEAD(&socket->devices_list); |
dc109497 DB |
1370 | memset(&socket->pcmcia_state, 0, sizeof(u8)); |
1371 | socket->device_count = 0; | |
1da177e4 | 1372 | |
90c6cdd1 | 1373 | ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback); |
1da177e4 | 1374 | if (ret) { |
ac449d6e | 1375 | dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n"); |
dc109497 | 1376 | pcmcia_put_socket(socket); |
9fea84f4 | 1377 | return ret; |
1da177e4 LT |
1378 | } |
1379 | ||
1380 | return 0; | |
1381 | } | |
1382 | ||
87373318 | 1383 | static void pcmcia_bus_remove_socket(struct device *dev, |
d8539d81 | 1384 | struct class_interface *class_intf) |
1da177e4 | 1385 | { |
87373318 | 1386 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 | 1387 | |
dc109497 | 1388 | if (!socket) |
1da177e4 LT |
1389 | return; |
1390 | ||
00ce99ff | 1391 | mutex_lock(&socket->ops_mutex); |
dc109497 | 1392 | socket->pcmcia_state.dead = 1; |
00ce99ff | 1393 | mutex_unlock(&socket->ops_mutex); |
3d3de32f | 1394 | |
1da177e4 LT |
1395 | pccard_register_pcmcia(socket, NULL); |
1396 | ||
dfbc9e9d | 1397 | /* unregister any unbound devices */ |
8e4d9dcb | 1398 | mutex_lock(&socket->skt_mutex); |
dfbc9e9d | 1399 | pcmcia_card_remove(socket, NULL); |
180c33ee | 1400 | release_cis_mem(socket); |
8e4d9dcb | 1401 | mutex_unlock(&socket->skt_mutex); |
dfbc9e9d | 1402 | |
6e7b51a7 DB |
1403 | sysfs_remove_bin_file(&dev->kobj, &pccard_cis_attr); |
1404 | ||
dc109497 | 1405 | pcmcia_put_socket(socket); |
1da177e4 LT |
1406 | |
1407 | return; | |
1408 | } | |
1409 | ||
1410 | ||
1411 | /* the pcmcia_bus_interface is used to handle pcmcia socket devices */ | |
ed49f5d0 | 1412 | static struct class_interface pcmcia_bus_interface __refdata = { |
1da177e4 | 1413 | .class = &pcmcia_socket_class, |
87373318 GKH |
1414 | .add_dev = &pcmcia_bus_add_socket, |
1415 | .remove_dev = &pcmcia_bus_remove_socket, | |
1da177e4 LT |
1416 | }; |
1417 | ||
1418 | ||
e7a480d2 | 1419 | struct bus_type pcmcia_bus_type = { |
1da177e4 | 1420 | .name = "pcmcia", |
312c004d | 1421 | .uevent = pcmcia_bus_uevent, |
1da177e4 LT |
1422 | .match = pcmcia_bus_match, |
1423 | .dev_attrs = pcmcia_dev_attrs, | |
1d0baa3a RK |
1424 | .probe = pcmcia_device_probe, |
1425 | .remove = pcmcia_device_remove, | |
8e9e793d DB |
1426 | .suspend = pcmcia_dev_suspend, |
1427 | .resume = pcmcia_dev_resume, | |
1da177e4 | 1428 | }; |
1da177e4 LT |
1429 | |
1430 | ||
1431 | static int __init init_pcmcia_bus(void) | |
1432 | { | |
ace7d477 RD |
1433 | int ret; |
1434 | ||
ace7d477 RD |
1435 | ret = bus_register(&pcmcia_bus_type); |
1436 | if (ret < 0) { | |
1437 | printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret); | |
1438 | return ret; | |
1439 | } | |
1440 | ret = class_interface_register(&pcmcia_bus_interface); | |
1441 | if (ret < 0) { | |
1442 | printk(KERN_WARNING | |
1443 | "pcmcia: class_interface_register error: %d\n", ret); | |
1444 | bus_unregister(&pcmcia_bus_type); | |
1445 | return ret; | |
1446 | } | |
1da177e4 | 1447 | |
e7a480d2 | 1448 | pcmcia_setup_ioctl(); |
1da177e4 LT |
1449 | |
1450 | return 0; | |
1451 | } | |
9fea84f4 | 1452 | fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that |
1da177e4 LT |
1453 | * pcmcia_socket_class is already registered */ |
1454 | ||
1455 | ||
1456 | static void __exit exit_pcmcia_bus(void) | |
1457 | { | |
e7a480d2 | 1458 | pcmcia_cleanup_ioctl(); |
1da177e4 | 1459 | |
e7a480d2 | 1460 | class_interface_unregister(&pcmcia_bus_interface); |
1da177e4 LT |
1461 | |
1462 | bus_unregister(&pcmcia_bus_type); | |
1463 | } | |
1464 | module_exit(exit_pcmcia_bus); | |
1465 | ||
1466 | ||
1da177e4 | 1467 | MODULE_ALIAS("ds"); |