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Commit | Line | Data |
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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> |
5a0e3ad6 | 27 | #include <linux/slab.h> |
1da177e4 | 28 | |
1da177e4 LT |
29 | #include <pcmcia/cs_types.h> |
30 | #include <pcmcia/cs.h> | |
1da177e4 LT |
31 | #include <pcmcia/cistpl.h> |
32 | #include <pcmcia/ds.h> | |
33 | #include <pcmcia/ss.h> | |
34 | ||
35 | #include "cs_internal.h" | |
36 | ||
37 | /*====================================================================*/ | |
38 | ||
39 | /* Module parameters */ | |
40 | ||
41 | MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>"); | |
42 | MODULE_DESCRIPTION("PCMCIA Driver Services"); | |
43 | MODULE_LICENSE("GPL"); | |
44 | ||
1da177e4 | 45 | |
1da177e4 LT |
46 | /*====================================================================*/ |
47 | ||
23a83bfe DB |
48 | static void pcmcia_check_driver(struct pcmcia_driver *p_drv) |
49 | { | |
50 | struct pcmcia_device_id *did = p_drv->id_table; | |
51 | unsigned int i; | |
52 | u32 hash; | |
53 | ||
f8cfa618 | 54 | if (!p_drv->probe || !p_drv->remove) |
ba5bb6b5 PR |
55 | printk(KERN_DEBUG "pcmcia: %s lacks a requisite callback " |
56 | "function\n", p_drv->drv.name); | |
1e212f36 | 57 | |
23a83bfe | 58 | while (did && did->match_flags) { |
9fea84f4 | 59 | for (i = 0; i < 4; i++) { |
23a83bfe DB |
60 | if (!did->prod_id[i]) |
61 | continue; | |
62 | ||
63 | hash = crc32(0, did->prod_id[i], strlen(did->prod_id[i])); | |
64 | if (hash == did->prod_id_hash[i]) | |
65 | continue; | |
66 | ||
67 | printk(KERN_DEBUG "pcmcia: %s: invalid hash for " | |
68 | "product string \"%s\": is 0x%x, should " | |
69 | "be 0x%x\n", p_drv->drv.name, did->prod_id[i], | |
70 | did->prod_id_hash[i], hash); | |
5085cb26 DB |
71 | printk(KERN_DEBUG "pcmcia: see " |
72 | "Documentation/pcmcia/devicetable.txt for " | |
73 | "details\n"); | |
23a83bfe DB |
74 | } |
75 | did++; | |
76 | } | |
77 | ||
78 | return; | |
79 | } | |
80 | ||
daa9517d | 81 | |
1da177e4 LT |
82 | /*======================================================================*/ |
83 | ||
1da177e4 | 84 | |
6179b556 BW |
85 | struct pcmcia_dynid { |
86 | struct list_head node; | |
87 | struct pcmcia_device_id id; | |
88 | }; | |
89 | ||
90 | /** | |
91 | * pcmcia_store_new_id - add a new PCMCIA device ID to this driver and re-probe devices | |
92 | * @driver: target device driver | |
93 | * @buf: buffer for scanning device ID data | |
94 | * @count: input size | |
95 | * | |
96 | * Adds a new dynamic PCMCIA device ID to this driver, | |
97 | * and causes the driver to probe for all devices again. | |
98 | */ | |
99 | static ssize_t | |
100 | pcmcia_store_new_id(struct device_driver *driver, const char *buf, size_t count) | |
101 | { | |
102 | struct pcmcia_dynid *dynid; | |
103 | struct pcmcia_driver *pdrv = to_pcmcia_drv(driver); | |
104 | __u16 match_flags, manf_id, card_id; | |
105 | __u8 func_id, function, device_no; | |
106 | __u32 prod_id_hash[4] = {0, 0, 0, 0}; | |
9fea84f4 | 107 | int fields = 0; |
6179b556 BW |
108 | int retval = 0; |
109 | ||
110 | fields = sscanf(buf, "%hx %hx %hx %hhx %hhx %hhx %x %x %x %x", | |
111 | &match_flags, &manf_id, &card_id, &func_id, &function, &device_no, | |
112 | &prod_id_hash[0], &prod_id_hash[1], &prod_id_hash[2], &prod_id_hash[3]); | |
113 | if (fields < 6) | |
114 | return -EINVAL; | |
115 | ||
116 | dynid = kzalloc(sizeof(struct pcmcia_dynid), GFP_KERNEL); | |
117 | if (!dynid) | |
118 | return -ENOMEM; | |
119 | ||
6179b556 BW |
120 | dynid->id.match_flags = match_flags; |
121 | dynid->id.manf_id = manf_id; | |
122 | dynid->id.card_id = card_id; | |
123 | dynid->id.func_id = func_id; | |
124 | dynid->id.function = function; | |
125 | dynid->id.device_no = device_no; | |
126 | memcpy(dynid->id.prod_id_hash, prod_id_hash, sizeof(__u32) * 4); | |
127 | ||
3f565232 | 128 | mutex_lock(&pdrv->dynids.lock); |
b4b3d7bb | 129 | list_add_tail(&dynid->node, &pdrv->dynids.list); |
3f565232 | 130 | mutex_unlock(&pdrv->dynids.lock); |
6179b556 BW |
131 | |
132 | if (get_driver(&pdrv->drv)) { | |
133 | retval = driver_attach(&pdrv->drv); | |
134 | put_driver(&pdrv->drv); | |
135 | } | |
136 | ||
137 | if (retval) | |
138 | return retval; | |
139 | return count; | |
140 | } | |
141 | static DRIVER_ATTR(new_id, S_IWUSR, NULL, pcmcia_store_new_id); | |
142 | ||
143 | static void | |
144 | pcmcia_free_dynids(struct pcmcia_driver *drv) | |
145 | { | |
146 | struct pcmcia_dynid *dynid, *n; | |
147 | ||
3f565232 | 148 | mutex_lock(&drv->dynids.lock); |
6179b556 BW |
149 | list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) { |
150 | list_del(&dynid->node); | |
151 | kfree(dynid); | |
152 | } | |
3f565232 | 153 | mutex_unlock(&drv->dynids.lock); |
6179b556 BW |
154 | } |
155 | ||
156 | static int | |
157 | pcmcia_create_newid_file(struct pcmcia_driver *drv) | |
158 | { | |
159 | int error = 0; | |
160 | if (drv->probe != NULL) | |
2344c6de | 161 | error = driver_create_file(&drv->drv, &driver_attr_new_id); |
6179b556 BW |
162 | return error; |
163 | } | |
164 | ||
165 | ||
1da177e4 LT |
166 | /** |
167 | * pcmcia_register_driver - register a PCMCIA driver with the bus core | |
78187865 | 168 | * @driver: the &driver being registered |
1da177e4 LT |
169 | * |
170 | * Registers a PCMCIA driver with the PCMCIA bus core. | |
171 | */ | |
1da177e4 LT |
172 | int pcmcia_register_driver(struct pcmcia_driver *driver) |
173 | { | |
6179b556 BW |
174 | int error; |
175 | ||
1da177e4 LT |
176 | if (!driver) |
177 | return -EINVAL; | |
178 | ||
23a83bfe DB |
179 | pcmcia_check_driver(driver); |
180 | ||
1da177e4 LT |
181 | /* initialize common fields */ |
182 | driver->drv.bus = &pcmcia_bus_type; | |
183 | driver->drv.owner = driver->owner; | |
3f565232 | 184 | mutex_init(&driver->dynids.lock); |
6179b556 | 185 | INIT_LIST_HEAD(&driver->dynids.list); |
1da177e4 | 186 | |
d50dbec3 | 187 | pr_debug("registering driver %s\n", driver->drv.name); |
d9d9ea01 | 188 | |
6179b556 BW |
189 | error = driver_register(&driver->drv); |
190 | if (error < 0) | |
191 | return error; | |
192 | ||
193 | error = pcmcia_create_newid_file(driver); | |
194 | if (error) | |
195 | driver_unregister(&driver->drv); | |
196 | ||
197 | return error; | |
1da177e4 LT |
198 | } |
199 | EXPORT_SYMBOL(pcmcia_register_driver); | |
200 | ||
201 | /** | |
202 | * pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core | |
78187865 | 203 | * @driver: the &driver being unregistered |
1da177e4 LT |
204 | */ |
205 | void pcmcia_unregister_driver(struct pcmcia_driver *driver) | |
206 | { | |
d50dbec3 | 207 | pr_debug("unregistering driver %s\n", driver->drv.name); |
1da177e4 | 208 | driver_unregister(&driver->drv); |
6179b556 | 209 | pcmcia_free_dynids(driver); |
1da177e4 LT |
210 | } |
211 | EXPORT_SYMBOL(pcmcia_unregister_driver); | |
212 | ||
1da177e4 LT |
213 | |
214 | /* pcmcia_device handling */ | |
215 | ||
9fea84f4 | 216 | struct pcmcia_device *pcmcia_get_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
217 | { |
218 | struct device *tmp_dev; | |
219 | tmp_dev = get_device(&p_dev->dev); | |
220 | if (!tmp_dev) | |
221 | return NULL; | |
222 | return to_pcmcia_dev(tmp_dev); | |
223 | } | |
224 | ||
e7a480d2 | 225 | void pcmcia_put_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
226 | { |
227 | if (p_dev) | |
228 | put_device(&p_dev->dev); | |
229 | } | |
230 | ||
360b65b9 DB |
231 | static void pcmcia_release_function(struct kref *ref) |
232 | { | |
233 | struct config_t *c = container_of(ref, struct config_t, ref); | |
d50dbec3 | 234 | pr_debug("releasing config_t\n"); |
360b65b9 DB |
235 | kfree(c); |
236 | } | |
237 | ||
1da177e4 LT |
238 | static void pcmcia_release_dev(struct device *dev) |
239 | { | |
240 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
44961a03 | 241 | int i; |
d50dbec3 | 242 | dev_dbg(dev, "releasing device\n"); |
dc109497 | 243 | pcmcia_put_socket(p_dev->socket); |
44961a03 DB |
244 | for (i = 0; i < 4; i++) |
245 | kfree(p_dev->prod_id[i]); | |
bd65a685 | 246 | kfree(p_dev->devname); |
360b65b9 | 247 | kref_put(&p_dev->function_config->ref, pcmcia_release_function); |
1da177e4 LT |
248 | kfree(p_dev); |
249 | } | |
250 | ||
251 | ||
9fea84f4 | 252 | static int pcmcia_device_probe(struct device *dev) |
1da177e4 LT |
253 | { |
254 | struct pcmcia_device *p_dev; | |
255 | struct pcmcia_driver *p_drv; | |
f8cfa618 | 256 | struct pcmcia_socket *s; |
af2b3b50 | 257 | cistpl_config_t cis_config; |
1da177e4 LT |
258 | int ret = 0; |
259 | ||
260 | dev = get_device(dev); | |
261 | if (!dev) | |
262 | return -ENODEV; | |
263 | ||
264 | p_dev = to_pcmcia_dev(dev); | |
265 | p_drv = to_pcmcia_drv(dev->driver); | |
f8cfa618 | 266 | s = p_dev->socket; |
1da177e4 | 267 | |
d50dbec3 | 268 | dev_dbg(dev, "trying to bind to %s\n", p_drv->drv.name); |
d9d9ea01 | 269 | |
360b65b9 DB |
270 | if ((!p_drv->probe) || (!p_dev->function_config) || |
271 | (!try_module_get(p_drv->owner))) { | |
1da177e4 LT |
272 | ret = -EINVAL; |
273 | goto put_dev; | |
274 | } | |
275 | ||
af2b3b50 DB |
276 | /* set up some more device information */ |
277 | ret = pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_CONFIG, | |
278 | &cis_config); | |
279 | if (!ret) { | |
280 | p_dev->conf.ConfigBase = cis_config.base; | |
281 | p_dev->conf.Present = cis_config.rmask[0]; | |
282 | } else { | |
ac449d6e DB |
283 | dev_printk(KERN_INFO, dev, |
284 | "pcmcia: could not parse base and rmask0 of CIS\n"); | |
af2b3b50 DB |
285 | p_dev->conf.ConfigBase = 0; |
286 | p_dev->conf.Present = 0; | |
287 | } | |
288 | ||
f8cfa618 | 289 | ret = p_drv->probe(p_dev); |
d9d9ea01 | 290 | if (ret) { |
d50dbec3 | 291 | dev_dbg(dev, "binding to %s failed with %d\n", |
ac449d6e | 292 | p_drv->drv.name, ret); |
82d56e6d | 293 | goto put_module; |
d9d9ea01 | 294 | } |
82d56e6d | 295 | |
00ce99ff | 296 | mutex_lock(&s->ops_mutex); |
aa584ca4 | 297 | if ((s->pcmcia_state.has_pfc) && |
82d56e6d | 298 | (p_dev->socket->device_count == 1) && (p_dev->device_no == 0)) |
aa584ca4 | 299 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY); |
00ce99ff | 300 | mutex_unlock(&s->ops_mutex); |
f8cfa618 | 301 | |
cec5eb7b | 302 | put_module: |
1da177e4 LT |
303 | if (ret) |
304 | module_put(p_drv->owner); | |
cec5eb7b | 305 | put_dev: |
f8cfa618 | 306 | if (ret) |
1da177e4 | 307 | put_device(dev); |
9fea84f4 | 308 | return ret; |
1da177e4 LT |
309 | } |
310 | ||
311 | ||
d6ff5a85 DB |
312 | /* |
313 | * Removes a PCMCIA card from the device tree and socket list. | |
314 | */ | |
315 | static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *leftover) | |
316 | { | |
317 | struct pcmcia_device *p_dev; | |
318 | struct pcmcia_device *tmp; | |
d6ff5a85 | 319 | |
d50dbec3 | 320 | dev_dbg(leftover ? &leftover->dev : &s->dev, |
ac449d6e DB |
321 | "pcmcia_card_remove(%d) %s\n", s->sock, |
322 | leftover ? leftover->devname : ""); | |
d6ff5a85 | 323 | |
00ce99ff | 324 | mutex_lock(&s->ops_mutex); |
d6ff5a85 DB |
325 | if (!leftover) |
326 | s->device_count = 0; | |
327 | else | |
328 | s->device_count = 1; | |
00ce99ff | 329 | mutex_unlock(&s->ops_mutex); |
d6ff5a85 DB |
330 | |
331 | /* unregister all pcmcia_devices registered with this socket, except leftover */ | |
332 | list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) { | |
333 | if (p_dev == leftover) | |
334 | continue; | |
335 | ||
00ce99ff | 336 | mutex_lock(&s->ops_mutex); |
d6ff5a85 | 337 | list_del(&p_dev->socket_device_list); |
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 | |
7d7ba8d3 DB |
512 | /* max of 2 PFC devices */ |
513 | if ((p_dev->device_no >= 2) && (function == 0)) | |
514 | goto err_free; | |
515 | ||
516 | /* max of 4 devices overall */ | |
517 | if (p_dev->device_no >= 4) | |
e6e4f397 DB |
518 | goto err_free; |
519 | ||
520 | p_dev->socket = s; | |
1da177e4 LT |
521 | p_dev->func = function; |
522 | ||
523 | p_dev->dev.bus = &pcmcia_bus_type; | |
87373318 | 524 | p_dev->dev.parent = s->dev.parent; |
1da177e4 | 525 | p_dev->dev.release = pcmcia_release_dev; |
43d9f7fd JB |
526 | /* by default don't allow DMA */ |
527 | p_dev->dma_mask = DMA_MASK_NONE; | |
528 | p_dev->dev.dma_mask = &p_dev->dma_mask; | |
25096986 KS |
529 | dev_set_name(&p_dev->dev, "%d.%d", p_dev->socket->sock, p_dev->device_no); |
530 | if (!dev_name(&p_dev->dev)) | |
531 | goto err_free; | |
532 | p_dev->devname = kasprintf(GFP_KERNEL, "pcmcia%s", dev_name(&p_dev->dev)); | |
bd65a685 BG |
533 | if (!p_dev->devname) |
534 | goto err_free; | |
d50dbec3 | 535 | dev_dbg(&p_dev->dev, "devname is %s\n", p_dev->devname); |
1da177e4 | 536 | |
00ce99ff | 537 | mutex_lock(&s->ops_mutex); |
360b65b9 DB |
538 | |
539 | /* | |
540 | * p_dev->function_config must be the same for all card functions. | |
541 | * Note that this is serialized by the device_add_lock, so that | |
542 | * only one such struct will be created. | |
543 | */ | |
9fea84f4 DB |
544 | list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list) |
545 | if (p_dev->func == tmp_dev->func) { | |
360b65b9 | 546 | p_dev->function_config = tmp_dev->function_config; |
3e879f61 K |
547 | p_dev->io = tmp_dev->io; |
548 | p_dev->irq = tmp_dev->irq; | |
360b65b9 DB |
549 | kref_get(&p_dev->function_config->ref); |
550 | } | |
551 | ||
552 | /* Add to the list in pcmcia_bus_socket */ | |
6171b88b | 553 | list_add(&p_dev->socket_device_list, &s->devices_list); |
360b65b9 | 554 | |
00ce99ff | 555 | mutex_unlock(&s->ops_mutex); |
1da177e4 | 556 | |
360b65b9 | 557 | if (!p_dev->function_config) { |
d50dbec3 | 558 | dev_dbg(&p_dev->dev, "creating config_t\n"); |
360b65b9 DB |
559 | p_dev->function_config = kzalloc(sizeof(struct config_t), |
560 | GFP_KERNEL); | |
561 | if (!p_dev->function_config) | |
562 | goto err_unreg; | |
563 | kref_init(&p_dev->function_config->ref); | |
564 | } | |
565 | ||
ac449d6e DB |
566 | dev_printk(KERN_NOTICE, &p_dev->dev, |
567 | "pcmcia: registering new device %s\n", | |
568 | p_dev->devname); | |
807277cb | 569 | |
1ad275e3 DB |
570 | pcmcia_device_query(p_dev); |
571 | ||
360b65b9 DB |
572 | if (device_register(&p_dev->dev)) |
573 | goto err_unreg; | |
1da177e4 | 574 | |
7fe908dd | 575 | mutex_unlock(&device_add_lock); |
1da177e4 LT |
576 | |
577 | return p_dev; | |
578 | ||
360b65b9 | 579 | err_unreg: |
00ce99ff | 580 | mutex_lock(&s->ops_mutex); |
360b65b9 | 581 | list_del(&p_dev->socket_device_list); |
00ce99ff | 582 | mutex_unlock(&s->ops_mutex); |
360b65b9 | 583 | |
1da177e4 | 584 | err_free: |
00ce99ff | 585 | mutex_lock(&s->ops_mutex); |
e6e4f397 | 586 | s->device_count--; |
00ce99ff | 587 | mutex_unlock(&s->ops_mutex); |
e6e4f397 | 588 | |
44961a03 DB |
589 | for (i = 0; i < 4; i++) |
590 | kfree(p_dev->prod_id[i]); | |
bd65a685 | 591 | kfree(p_dev->devname); |
1da177e4 | 592 | kfree(p_dev); |
1da177e4 | 593 | err_put: |
7fe908dd | 594 | mutex_unlock(&device_add_lock); |
dc109497 | 595 | pcmcia_put_socket(s); |
1da177e4 LT |
596 | |
597 | return NULL; | |
598 | } | |
599 | ||
600 | ||
601 | static int pcmcia_card_add(struct pcmcia_socket *s) | |
602 | { | |
1da177e4 | 603 | cistpl_longlink_mfc_t mfc; |
c5081d5f | 604 | unsigned int no_funcs, i, no_chains; |
cfe5d809 | 605 | int ret = -EAGAIN; |
1da177e4 | 606 | |
cfe5d809 | 607 | mutex_lock(&s->ops_mutex); |
d9d9ea01 | 608 | if (!(s->resource_setup_done)) { |
d50dbec3 | 609 | dev_dbg(&s->dev, |
ac449d6e | 610 | "no resources available, delaying card_add\n"); |
cfe5d809 | 611 | mutex_unlock(&s->ops_mutex); |
1da177e4 | 612 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 613 | } |
1da177e4 | 614 | |
d9d9ea01 | 615 | if (pcmcia_validate_mem(s)) { |
d50dbec3 | 616 | dev_dbg(&s->dev, "validating mem resources failed, " |
d9d9ea01 | 617 | "delaying card_add\n"); |
cfe5d809 | 618 | mutex_unlock(&s->ops_mutex); |
de75914e | 619 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 620 | } |
cfe5d809 | 621 | mutex_unlock(&s->ops_mutex); |
de75914e | 622 | |
84897fc0 | 623 | ret = pccard_validate_cis(s, &no_chains); |
c5081d5f | 624 | if (ret || !no_chains) { |
d50dbec3 | 625 | dev_dbg(&s->dev, "invalid CIS or invalid resources\n"); |
1da177e4 LT |
626 | return -ENODEV; |
627 | } | |
628 | ||
629 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
630 | no_funcs = mfc.nfn; | |
631 | else | |
632 | no_funcs = 1; | |
1d2c9042 | 633 | s->functions = no_funcs; |
1da177e4 | 634 | |
9fea84f4 | 635 | for (i = 0; i < no_funcs; i++) |
dc109497 | 636 | pcmcia_device_add(s, i); |
1da177e4 | 637 | |
9fea84f4 | 638 | return ret; |
1da177e4 LT |
639 | } |
640 | ||
641 | ||
af461fc1 | 642 | static int pcmcia_requery_callback(struct device *dev, void * _data) |
ff1fa9ef | 643 | { |
e2f0b534 | 644 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
d9d9ea01 | 645 | if (!p_dev->dev.driver) { |
d50dbec3 | 646 | dev_dbg(dev, "update device information\n"); |
e2f0b534 | 647 | pcmcia_device_query(p_dev); |
d9d9ea01 | 648 | } |
e2f0b534 DB |
649 | |
650 | return 0; | |
651 | } | |
652 | ||
aa584ca4 | 653 | |
af461fc1 | 654 | static void pcmcia_requery(struct pcmcia_socket *s) |
e2f0b534 | 655 | { |
04de0816 | 656 | int has_pfc; |
4ae1cbf1 | 657 | |
af461fc1 DB |
658 | if (s->functions == 0) { |
659 | pcmcia_card_add(s); | |
660 | return; | |
e2f0b534 DB |
661 | } |
662 | ||
663 | /* some device information might have changed because of a CIS | |
664 | * update or because we can finally read it correctly... so | |
665 | * determine it again, overwriting old values if necessary. */ | |
af461fc1 DB |
666 | bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery_callback); |
667 | ||
668 | /* if the CIS changed, we need to check whether the number of | |
669 | * functions changed. */ | |
670 | if (s->fake_cis) { | |
671 | int old_funcs, new_funcs; | |
672 | cistpl_longlink_mfc_t mfc; | |
673 | ||
674 | /* does this cis override add or remove functions? */ | |
675 | old_funcs = s->functions; | |
676 | ||
677 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, | |
678 | &mfc)) | |
679 | new_funcs = mfc.nfn; | |
680 | else | |
681 | new_funcs = 1; | |
b1095afe DB |
682 | if (old_funcs != new_funcs) { |
683 | /* we need to re-start */ | |
af461fc1 DB |
684 | pcmcia_card_remove(s, NULL); |
685 | pcmcia_card_add(s); | |
af461fc1 DB |
686 | } |
687 | } | |
e2f0b534 | 688 | |
aa584ca4 DB |
689 | /* If the PCMCIA device consists of two pseudo devices, |
690 | * call pcmcia_device_add() -- which will fail if both | |
691 | * devices are already registered. */ | |
692 | mutex_lock(&s->ops_mutex); | |
693 | has_pfc = s->pcmcia_state.has_pfc; | |
694 | mutex_unlock(&s->ops_mutex); | |
695 | if (has_pfc) | |
696 | pcmcia_device_add(s, 0); | |
697 | ||
e2f0b534 DB |
698 | /* we re-scan all devices, not just the ones connected to this |
699 | * socket. This does not matter, though. */ | |
af461fc1 DB |
700 | if (bus_rescan_devices(&pcmcia_bus_type)) |
701 | dev_warn(&s->dev, "rescanning the bus failed\n"); | |
ff1fa9ef | 702 | } |
1ad275e3 | 703 | |
af461fc1 | 704 | |
1d2c9042 DB |
705 | #ifdef CONFIG_PCMCIA_LOAD_CIS |
706 | ||
707 | /** | |
708 | * pcmcia_load_firmware - load CIS from userspace if device-provided is broken | |
78187865 RD |
709 | * @dev: the pcmcia device which needs a CIS override |
710 | * @filename: requested filename in /lib/firmware/ | |
1d2c9042 DB |
711 | * |
712 | * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if | |
713 | * the one provided by the card is broken. The firmware files reside in | |
714 | * /lib/firmware/ in userspace. | |
715 | */ | |
716 | static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
717 | { | |
718 | struct pcmcia_socket *s = dev->socket; | |
719 | const struct firmware *fw; | |
1d2c9042 | 720 | int ret = -ENOMEM; |
b1095afe DB |
721 | cistpl_longlink_mfc_t mfc; |
722 | int old_funcs, new_funcs = 1; | |
1d2c9042 DB |
723 | |
724 | if (!filename) | |
725 | return -EINVAL; | |
726 | ||
d50dbec3 | 727 | dev_dbg(&dev->dev, "trying to load CIS file %s\n", filename); |
1d2c9042 | 728 | |
ed62acec | 729 | if (request_firmware(&fw, filename, &dev->dev) == 0) { |
d9d9ea01 DB |
730 | if (fw->size >= CISTPL_MAX_CIS_SIZE) { |
731 | ret = -EINVAL; | |
ac449d6e DB |
732 | dev_printk(KERN_ERR, &dev->dev, |
733 | "pcmcia: CIS override is too big\n"); | |
1d2c9042 | 734 | goto release; |
d9d9ea01 | 735 | } |
1d2c9042 | 736 | |
53efec95 | 737 | if (!pcmcia_replace_cis(s, fw->data, fw->size)) |
1d2c9042 | 738 | ret = 0; |
d9d9ea01 | 739 | else { |
ac449d6e DB |
740 | dev_printk(KERN_ERR, &dev->dev, |
741 | "pcmcia: CIS override failed\n"); | |
d9d9ea01 DB |
742 | goto release; |
743 | } | |
744 | ||
b1095afe DB |
745 | /* we need to re-start if the number of functions changed */ |
746 | old_funcs = s->functions; | |
747 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, | |
748 | &mfc)) | |
749 | new_funcs = mfc.nfn; | |
750 | ||
751 | if (old_funcs != new_funcs) | |
752 | ret = -EBUSY; | |
1d2c9042 DB |
753 | |
754 | /* update information */ | |
755 | pcmcia_device_query(dev); | |
756 | ||
aa584ca4 DB |
757 | /* requery (as number of functions might have changed) */ |
758 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY); | |
1d2c9042 DB |
759 | } |
760 | release: | |
761 | release_firmware(fw); | |
762 | ||
9fea84f4 | 763 | return ret; |
1d2c9042 DB |
764 | } |
765 | ||
766 | #else /* !CONFIG_PCMCIA_LOAD_CIS */ | |
767 | ||
768 | static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
769 | { | |
770 | return -ENODEV; | |
771 | } | |
772 | ||
773 | #endif | |
774 | ||
775 | ||
1ad275e3 DB |
776 | static inline int pcmcia_devmatch(struct pcmcia_device *dev, |
777 | struct pcmcia_device_id *did) | |
778 | { | |
779 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) { | |
780 | if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id)) | |
781 | return 0; | |
782 | } | |
783 | ||
784 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) { | |
785 | if ((!dev->has_card_id) || (dev->card_id != did->card_id)) | |
786 | return 0; | |
787 | } | |
788 | ||
789 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) { | |
790 | if (dev->func != did->function) | |
791 | return 0; | |
792 | } | |
793 | ||
794 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) { | |
795 | if (!dev->prod_id[0]) | |
796 | return 0; | |
797 | if (strcmp(did->prod_id[0], dev->prod_id[0])) | |
798 | return 0; | |
799 | } | |
800 | ||
801 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) { | |
802 | if (!dev->prod_id[1]) | |
803 | return 0; | |
804 | if (strcmp(did->prod_id[1], dev->prod_id[1])) | |
805 | return 0; | |
806 | } | |
807 | ||
808 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) { | |
809 | if (!dev->prod_id[2]) | |
810 | return 0; | |
811 | if (strcmp(did->prod_id[2], dev->prod_id[2])) | |
812 | return 0; | |
813 | } | |
814 | ||
815 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) { | |
816 | if (!dev->prod_id[3]) | |
817 | return 0; | |
818 | if (strcmp(did->prod_id[3], dev->prod_id[3])) | |
819 | return 0; | |
820 | } | |
821 | ||
822 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { | |
1ad275e3 DB |
823 | if (dev->device_no != did->device_no) |
824 | return 0; | |
aa584ca4 DB |
825 | mutex_lock(&dev->socket->ops_mutex); |
826 | dev->socket->pcmcia_state.has_pfc = 1; | |
827 | mutex_unlock(&dev->socket->ops_mutex); | |
1ad275e3 DB |
828 | } |
829 | ||
830 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { | |
94a819f8 DB |
831 | int ret; |
832 | ||
1ad275e3 DB |
833 | if ((!dev->has_func_id) || (dev->func_id != did->func_id)) |
834 | return 0; | |
835 | ||
836 | /* if this is a pseudo-multi-function device, | |
837 | * we need explicit matches */ | |
838 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) | |
839 | return 0; | |
840 | if (dev->device_no) | |
841 | return 0; | |
842 | ||
843 | /* also, FUNC_ID matching needs to be activated by userspace | |
844 | * after it has re-checked that there is no possible module | |
845 | * with a prod_id/manf_id/card_id match. | |
846 | */ | |
94a819f8 DB |
847 | mutex_lock(&dev->socket->ops_mutex); |
848 | ret = dev->allow_func_id_match; | |
849 | mutex_unlock(&dev->socket->ops_mutex); | |
850 | ||
851 | if (!ret) { | |
852 | dev_dbg(&dev->dev, | |
853 | "skipping FUNC_ID match until userspace ACK\n"); | |
1ad275e3 | 854 | return 0; |
94a819f8 | 855 | } |
1ad275e3 DB |
856 | } |
857 | ||
ea7b3882 | 858 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { |
d50dbec3 | 859 | dev_dbg(&dev->dev, "device needs a fake CIS\n"); |
daa9517d | 860 | if (!dev->socket->fake_cis) |
b1095afe DB |
861 | if (pcmcia_load_firmware(dev, did->cisfile)) |
862 | return 0; | |
ea7b3882 DB |
863 | } |
864 | ||
f602ff7e DB |
865 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { |
866 | int i; | |
9fea84f4 | 867 | for (i = 0; i < 4; i++) |
f602ff7e DB |
868 | if (dev->prod_id[i]) |
869 | return 0; | |
870 | if (dev->has_manf_id || dev->has_card_id || dev->has_func_id) | |
871 | return 0; | |
872 | } | |
873 | ||
1ad275e3 DB |
874 | return 1; |
875 | } | |
876 | ||
877 | ||
9fea84f4 DB |
878 | static int pcmcia_bus_match(struct device *dev, struct device_driver *drv) |
879 | { | |
880 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
881 | struct pcmcia_driver *p_drv = to_pcmcia_drv(drv); | |
1ad275e3 | 882 | struct pcmcia_device_id *did = p_drv->id_table; |
6179b556 BW |
883 | struct pcmcia_dynid *dynid; |
884 | ||
885 | /* match dynamic devices first */ | |
3f565232 | 886 | mutex_lock(&p_drv->dynids.lock); |
6179b556 | 887 | list_for_each_entry(dynid, &p_drv->dynids.list, node) { |
d50dbec3 | 888 | dev_dbg(dev, "trying to match to %s\n", drv->name); |
6179b556 | 889 | if (pcmcia_devmatch(p_dev, &dynid->id)) { |
d50dbec3 | 890 | dev_dbg(dev, "matched to %s\n", drv->name); |
3f565232 | 891 | mutex_unlock(&p_drv->dynids.lock); |
6179b556 BW |
892 | return 1; |
893 | } | |
894 | } | |
3f565232 | 895 | mutex_unlock(&p_drv->dynids.lock); |
1da177e4 | 896 | |
0e0fad8f | 897 | #ifdef CONFIG_PCMCIA_IOCTL |
1da177e4 | 898 | /* matching by cardmgr */ |
d9d9ea01 | 899 | if (p_dev->cardmgr == p_drv) { |
d50dbec3 | 900 | dev_dbg(dev, "cardmgr matched to %s\n", drv->name); |
1da177e4 | 901 | return 1; |
d9d9ea01 | 902 | } |
0e0fad8f | 903 | #endif |
1da177e4 | 904 | |
1ad275e3 | 905 | while (did && did->match_flags) { |
d50dbec3 | 906 | dev_dbg(dev, "trying to match to %s\n", drv->name); |
d9d9ea01 | 907 | if (pcmcia_devmatch(p_dev, did)) { |
d50dbec3 | 908 | dev_dbg(dev, "matched to %s\n", drv->name); |
1ad275e3 | 909 | return 1; |
d9d9ea01 | 910 | } |
1ad275e3 DB |
911 | did++; |
912 | } | |
913 | ||
1da177e4 LT |
914 | return 0; |
915 | } | |
916 | ||
840c2ac5 DB |
917 | #ifdef CONFIG_HOTPLUG |
918 | ||
7eff2e7a | 919 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
920 | { |
921 | struct pcmcia_device *p_dev; | |
7eff2e7a | 922 | int i; |
840c2ac5 DB |
923 | u32 hash[4] = { 0, 0, 0, 0}; |
924 | ||
925 | if (!dev) | |
926 | return -ENODEV; | |
927 | ||
928 | p_dev = to_pcmcia_dev(dev); | |
929 | ||
930 | /* calculate hashes */ | |
9fea84f4 | 931 | for (i = 0; i < 4; i++) { |
840c2ac5 DB |
932 | if (!p_dev->prod_id[i]) |
933 | continue; | |
934 | hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); | |
935 | } | |
936 | ||
7eff2e7a | 937 | if (add_uevent_var(env, "SOCKET_NO=%u", p_dev->socket->sock)) |
840c2ac5 DB |
938 | return -ENOMEM; |
939 | ||
7eff2e7a | 940 | if (add_uevent_var(env, "DEVICE_NO=%02X", p_dev->device_no)) |
840c2ac5 DB |
941 | return -ENOMEM; |
942 | ||
7eff2e7a | 943 | if (add_uevent_var(env, "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" |
312c004d KS |
944 | "pa%08Xpb%08Xpc%08Xpd%08X", |
945 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
946 | p_dev->has_card_id ? p_dev->card_id : 0, | |
947 | p_dev->has_func_id ? p_dev->func_id : 0, | |
948 | p_dev->func, | |
949 | p_dev->device_no, | |
950 | hash[0], | |
951 | hash[1], | |
952 | hash[2], | |
953 | hash[3])) | |
840c2ac5 DB |
954 | return -ENOMEM; |
955 | ||
840c2ac5 DB |
956 | return 0; |
957 | } | |
958 | ||
959 | #else | |
960 | ||
7eff2e7a | 961 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
962 | { |
963 | return -ENODEV; | |
964 | } | |
965 | ||
966 | #endif | |
967 | ||
3f8df781 AS |
968 | /************************ runtime PM support ***************************/ |
969 | ||
970 | static int pcmcia_dev_suspend(struct device *dev, pm_message_t state); | |
971 | static int pcmcia_dev_resume(struct device *dev); | |
972 | ||
973 | static int runtime_suspend(struct device *dev) | |
974 | { | |
975 | int rc; | |
976 | ||
8e9394ce | 977 | device_lock(dev); |
3f8df781 | 978 | rc = pcmcia_dev_suspend(dev, PMSG_SUSPEND); |
8e9394ce | 979 | device_unlock(dev); |
3f8df781 AS |
980 | return rc; |
981 | } | |
982 | ||
933a838a | 983 | static int runtime_resume(struct device *dev) |
3f8df781 AS |
984 | { |
985 | int rc; | |
986 | ||
8e9394ce | 987 | device_lock(dev); |
3f8df781 | 988 | rc = pcmcia_dev_resume(dev); |
8e9394ce | 989 | device_unlock(dev); |
933a838a | 990 | return rc; |
3f8df781 AS |
991 | } |
992 | ||
1da177e4 LT |
993 | /************************ per-device sysfs output ***************************/ |
994 | ||
995 | #define pcmcia_device_attr(field, test, format) \ | |
e404e274 | 996 | static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
997 | { \ |
998 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
9fea84f4 | 999 | return p_dev->test ? sprintf(buf, format, p_dev->field) : -ENODEV; \ |
1da177e4 LT |
1000 | } |
1001 | ||
1002 | #define pcmcia_device_stringattr(name, field) \ | |
e404e274 | 1003 | static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1004 | { \ |
1005 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
9fea84f4 | 1006 | return p_dev->field ? sprintf(buf, "%s\n", p_dev->field) : -ENODEV; \ |
1da177e4 LT |
1007 | } |
1008 | ||
1009 | pcmcia_device_attr(func, socket, "0x%02x\n"); | |
1010 | pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); | |
1011 | pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); | |
1012 | pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); | |
1013 | pcmcia_device_stringattr(prod_id1, prod_id[0]); | |
1014 | pcmcia_device_stringattr(prod_id2, prod_id[1]); | |
1015 | pcmcia_device_stringattr(prod_id3, prod_id[2]); | |
1016 | pcmcia_device_stringattr(prod_id4, prod_id[3]); | |
1017 | ||
db1019ca DB |
1018 | |
1019 | static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf) | |
1020 | { | |
1021 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1022 | ||
f6fbe01a | 1023 | if (p_dev->suspended) |
db1019ca DB |
1024 | return sprintf(buf, "off\n"); |
1025 | else | |
1026 | return sprintf(buf, "on\n"); | |
1027 | } | |
1028 | ||
1029 | static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr, | |
1030 | const char *buf, size_t count) | |
1031 | { | |
1032 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1033 | int ret = 0; | |
1034 | ||
9fea84f4 DB |
1035 | if (!count) |
1036 | return -EINVAL; | |
db1019ca | 1037 | |
f6fbe01a | 1038 | if ((!p_dev->suspended) && !strncmp(buf, "off", 3)) |
3f8df781 | 1039 | ret = runtime_suspend(dev); |
f6fbe01a | 1040 | else if (p_dev->suspended && !strncmp(buf, "on", 2)) |
933a838a | 1041 | ret = runtime_resume(dev); |
db1019ca DB |
1042 | |
1043 | return ret ? ret : count; | |
1044 | } | |
1045 | ||
1046 | ||
3704511b | 1047 | static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) |
3248ff43 DB |
1048 | { |
1049 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1050 | int i; | |
1051 | u32 hash[4] = { 0, 0, 0, 0}; | |
1052 | ||
1053 | /* calculate hashes */ | |
9fea84f4 | 1054 | for (i = 0; i < 4; i++) { |
3248ff43 DB |
1055 | if (!p_dev->prod_id[i]) |
1056 | continue; | |
9fea84f4 DB |
1057 | hash[i] = crc32(0, p_dev->prod_id[i], |
1058 | strlen(p_dev->prod_id[i])); | |
3248ff43 DB |
1059 | } |
1060 | return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
1061 | "pa%08Xpb%08Xpc%08Xpd%08X\n", | |
1062 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1063 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1064 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1065 | p_dev->func, p_dev->device_no, | |
1066 | hash[0], hash[1], hash[2], hash[3]); | |
1067 | } | |
a5b55778 | 1068 | |
3248ff43 DB |
1069 | static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, |
1070 | struct device_attribute *attr, const char *buf, size_t count) | |
a5b55778 DB |
1071 | { |
1072 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
db1019ca DB |
1073 | |
1074 | if (!count) | |
1075 | return -EINVAL; | |
a5b55778 | 1076 | |
94a819f8 | 1077 | mutex_lock(&p_dev->socket->ops_mutex); |
a5b55778 | 1078 | p_dev->allow_func_id_match = 1; |
94a819f8 | 1079 | mutex_unlock(&p_dev->socket->ops_mutex); |
af461fc1 | 1080 | pcmcia_parse_uevents(p_dev->socket, PCMCIA_UEVENT_REQUERY); |
a5b55778 DB |
1081 | |
1082 | return count; | |
1083 | } | |
1084 | ||
1da177e4 LT |
1085 | static struct device_attribute pcmcia_dev_attrs[] = { |
1086 | __ATTR(function, 0444, func_show, NULL), | |
db1019ca | 1087 | __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state), |
1da177e4 LT |
1088 | __ATTR_RO(func_id), |
1089 | __ATTR_RO(manf_id), | |
1090 | __ATTR_RO(card_id), | |
1091 | __ATTR_RO(prod_id1), | |
1092 | __ATTR_RO(prod_id2), | |
1093 | __ATTR_RO(prod_id3), | |
1094 | __ATTR_RO(prod_id4), | |
3248ff43 | 1095 | __ATTR_RO(modalias), |
a5b55778 | 1096 | __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), |
1da177e4 LT |
1097 | __ATTR_NULL, |
1098 | }; | |
1099 | ||
8e9e793d DB |
1100 | /* PM support, also needed for reset */ |
1101 | ||
9fea84f4 | 1102 | static int pcmcia_dev_suspend(struct device *dev, pm_message_t state) |
8e9e793d DB |
1103 | { |
1104 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1105 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1106 | int ret = 0; |
8e9e793d | 1107 | |
94a819f8 DB |
1108 | mutex_lock(&p_dev->socket->ops_mutex); |
1109 | if (p_dev->suspended) { | |
1110 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1111 | return 0; |
94a819f8 DB |
1112 | } |
1113 | p_dev->suspended = 1; | |
1114 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1115 | |
d50dbec3 | 1116 | dev_dbg(dev, "suspending\n"); |
d9d9ea01 | 1117 | |
8e9e793d DB |
1118 | if (dev->driver) |
1119 | p_drv = to_pcmcia_drv(dev->driver); | |
1120 | ||
e2d40963 DB |
1121 | if (!p_drv) |
1122 | goto out; | |
1123 | ||
1124 | if (p_drv->suspend) { | |
8661bb5b | 1125 | ret = p_drv->suspend(p_dev); |
d9d9ea01 | 1126 | if (ret) { |
ac449d6e DB |
1127 | dev_printk(KERN_ERR, dev, |
1128 | "pcmcia: device %s (driver %s) did " | |
1129 | "not want to go to sleep (%d)\n", | |
1130 | p_dev->devname, p_drv->drv.name, ret); | |
94a819f8 DB |
1131 | mutex_lock(&p_dev->socket->ops_mutex); |
1132 | p_dev->suspended = 0; | |
1133 | mutex_unlock(&p_dev->socket->ops_mutex); | |
f6fbe01a | 1134 | goto out; |
d9d9ea01 | 1135 | } |
8661bb5b | 1136 | } |
8e9e793d | 1137 | |
d9d9ea01 | 1138 | if (p_dev->device_no == p_dev->func) { |
d50dbec3 | 1139 | dev_dbg(dev, "releasing configuration\n"); |
e2d40963 | 1140 | pcmcia_release_configuration(p_dev); |
d9d9ea01 | 1141 | } |
e2d40963 | 1142 | |
f6fbe01a | 1143 | out: |
f6fbe01a | 1144 | return ret; |
8e9e793d DB |
1145 | } |
1146 | ||
1147 | ||
9fea84f4 | 1148 | static int pcmcia_dev_resume(struct device *dev) |
8e9e793d DB |
1149 | { |
1150 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
9fea84f4 | 1151 | struct pcmcia_driver *p_drv = NULL; |
f6fbe01a | 1152 | int ret = 0; |
8e9e793d | 1153 | |
94a819f8 DB |
1154 | mutex_lock(&p_dev->socket->ops_mutex); |
1155 | if (!p_dev->suspended) { | |
1156 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1157 | return 0; |
94a819f8 DB |
1158 | } |
1159 | p_dev->suspended = 0; | |
1160 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1161 | |
d50dbec3 | 1162 | dev_dbg(dev, "resuming\n"); |
d9d9ea01 | 1163 | |
8e9e793d DB |
1164 | if (dev->driver) |
1165 | p_drv = to_pcmcia_drv(dev->driver); | |
1166 | ||
e2d40963 DB |
1167 | if (!p_drv) |
1168 | goto out; | |
1169 | ||
1170 | if (p_dev->device_no == p_dev->func) { | |
d50dbec3 | 1171 | dev_dbg(dev, "requesting configuration\n"); |
e2d40963 DB |
1172 | ret = pcmcia_request_configuration(p_dev, &p_dev->conf); |
1173 | if (ret) | |
1174 | goto out; | |
8661bb5b | 1175 | } |
8e9e793d | 1176 | |
e2d40963 DB |
1177 | if (p_drv->resume) |
1178 | ret = p_drv->resume(p_dev); | |
1179 | ||
f6fbe01a | 1180 | out: |
f6fbe01a | 1181 | return ret; |
8e9e793d DB |
1182 | } |
1183 | ||
1184 | ||
1185 | static int pcmcia_bus_suspend_callback(struct device *dev, void * _data) | |
1186 | { | |
1187 | struct pcmcia_socket *skt = _data; | |
1188 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1189 | ||
3f8df781 | 1190 | if (p_dev->socket != skt || p_dev->suspended) |
8e9e793d DB |
1191 | return 0; |
1192 | ||
3f8df781 | 1193 | return runtime_suspend(dev); |
8e9e793d DB |
1194 | } |
1195 | ||
1196 | static int pcmcia_bus_resume_callback(struct device *dev, void * _data) | |
1197 | { | |
1198 | struct pcmcia_socket *skt = _data; | |
1199 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1200 | ||
3f8df781 | 1201 | if (p_dev->socket != skt || !p_dev->suspended) |
8e9e793d DB |
1202 | return 0; |
1203 | ||
3f8df781 | 1204 | runtime_resume(dev); |
8e9e793d DB |
1205 | |
1206 | return 0; | |
1207 | } | |
1208 | ||
1209 | static int pcmcia_bus_resume(struct pcmcia_socket *skt) | |
1210 | { | |
d50dbec3 | 1211 | dev_dbg(&skt->dev, "resuming socket %d\n", skt->sock); |
8e9e793d DB |
1212 | bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback); |
1213 | return 0; | |
1214 | } | |
1215 | ||
1216 | static int pcmcia_bus_suspend(struct pcmcia_socket *skt) | |
1217 | { | |
d50dbec3 | 1218 | dev_dbg(&skt->dev, "suspending socket %d\n", skt->sock); |
8e9e793d DB |
1219 | if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt, |
1220 | pcmcia_bus_suspend_callback)) { | |
1221 | pcmcia_bus_resume(skt); | |
1222 | return -EIO; | |
1223 | } | |
1224 | return 0; | |
1225 | } | |
1226 | ||
1da177e4 | 1227 | |
1da177e4 LT |
1228 | /*====================================================================== |
1229 | ||
1230 | The card status event handler. | |
9fea84f4 | 1231 | |
1da177e4 LT |
1232 | ======================================================================*/ |
1233 | ||
1da177e4 LT |
1234 | /* Normally, the event is passed to individual drivers after |
1235 | * informing userspace. Only for CS_EVENT_CARD_REMOVAL this | |
1236 | * is inversed to maintain historic compatibility. | |
1237 | */ | |
1238 | ||
1239 | static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) | |
1240 | { | |
dc109497 | 1241 | struct pcmcia_socket *s = pcmcia_get_socket(skt); |
1da177e4 | 1242 | |
1617406a | 1243 | if (!s) { |
ac449d6e DB |
1244 | dev_printk(KERN_ERR, &skt->dev, |
1245 | "PCMCIA obtaining reference to socket " \ | |
1246 | "failed, event 0x%x lost!\n", event); | |
1617406a FM |
1247 | return -ENODEV; |
1248 | } | |
1249 | ||
d50dbec3 | 1250 | dev_dbg(&skt->dev, "ds_event(0x%06x, %d, 0x%p)\n", |
ac449d6e | 1251 | event, priority, skt); |
1da177e4 | 1252 | |
f8cfa618 | 1253 | switch (event) { |
1da177e4 | 1254 | case CS_EVENT_CARD_REMOVAL: |
04de0816 | 1255 | atomic_set(&skt->present, 0); |
d6ff5a85 | 1256 | pcmcia_card_remove(skt, NULL); |
dc109497 | 1257 | handle_event(skt, event); |
8680c4b3 | 1258 | mutex_lock(&s->ops_mutex); |
180c33ee | 1259 | destroy_cis_cache(s); |
8680c4b3 | 1260 | mutex_unlock(&s->ops_mutex); |
1da177e4 | 1261 | break; |
f8cfa618 | 1262 | |
1da177e4 | 1263 | case CS_EVENT_CARD_INSERTION: |
04de0816 | 1264 | atomic_set(&skt->present, 1); |
8680c4b3 | 1265 | mutex_lock(&s->ops_mutex); |
aa584ca4 | 1266 | s->pcmcia_state.has_pfc = 0; |
180c33ee | 1267 | destroy_cis_cache(s); /* to be on the safe side... */ |
8680c4b3 | 1268 | mutex_unlock(&s->ops_mutex); |
1da177e4 | 1269 | pcmcia_card_add(skt); |
dc109497 | 1270 | handle_event(skt, event); |
1da177e4 LT |
1271 | break; |
1272 | ||
1273 | case CS_EVENT_EJECTION_REQUEST: | |
1da177e4 LT |
1274 | break; |
1275 | ||
8e9e793d | 1276 | case CS_EVENT_PM_RESUME: |
88b060d6 DB |
1277 | if (verify_cis_cache(skt) != 0) { |
1278 | dev_dbg(&skt->dev, "cis mismatch - different card\n"); | |
1279 | /* first, remove the card */ | |
1280 | ds_event(skt, CS_EVENT_CARD_REMOVAL, CS_EVENT_PRI_HIGH); | |
8680c4b3 | 1281 | mutex_lock(&s->ops_mutex); |
88b060d6 DB |
1282 | destroy_cis_cache(skt); |
1283 | kfree(skt->fake_cis); | |
1284 | skt->fake_cis = NULL; | |
8680c4b3 | 1285 | mutex_unlock(&s->ops_mutex); |
88b060d6 DB |
1286 | /* now, add the new card */ |
1287 | ds_event(skt, CS_EVENT_CARD_INSERTION, | |
1288 | CS_EVENT_PRI_LOW); | |
1289 | } | |
1290 | handle_event(skt, event); | |
1291 | break; | |
1292 | ||
1293 | case CS_EVENT_PM_SUSPEND: | |
8e9e793d DB |
1294 | case CS_EVENT_RESET_PHYSICAL: |
1295 | case CS_EVENT_CARD_RESET: | |
1da177e4 | 1296 | default: |
dc109497 | 1297 | handle_event(skt, event); |
1da177e4 LT |
1298 | break; |
1299 | } | |
1300 | ||
dc109497 DB |
1301 | pcmcia_put_socket(s); |
1302 | ||
1da177e4 LT |
1303 | return 0; |
1304 | } /* ds_event */ | |
1305 | ||
04de0816 DB |
1306 | /* |
1307 | * NOTE: This is racy. There's no guarantee the card will still be | |
1308 | * physically present, even if the call to this function returns | |
1309 | * non-NULL. Furthermore, the device driver most likely is unbound | |
1310 | * almost immediately, so the timeframe where pcmcia_dev_present | |
1311 | * returns NULL is probably really really small. | |
1312 | */ | |
9fea84f4 | 1313 | struct pcmcia_device *pcmcia_dev_present(struct pcmcia_device *_p_dev) |
9940ec36 DB |
1314 | { |
1315 | struct pcmcia_device *p_dev; | |
1316 | struct pcmcia_device *ret = NULL; | |
1317 | ||
1318 | p_dev = pcmcia_get_dev(_p_dev); | |
1319 | if (!p_dev) | |
1320 | return NULL; | |
1321 | ||
04de0816 DB |
1322 | if (atomic_read(&p_dev->socket->present) != 0) |
1323 | ret = p_dev; | |
9940ec36 | 1324 | |
9940ec36 DB |
1325 | pcmcia_put_dev(p_dev); |
1326 | return ret; | |
1327 | } | |
1328 | EXPORT_SYMBOL(pcmcia_dev_present); | |
1329 | ||
1330 | ||
90c6cdd1 DB |
1331 | static struct pcmcia_callback pcmcia_bus_callback = { |
1332 | .owner = THIS_MODULE, | |
1333 | .event = ds_event, | |
af461fc1 | 1334 | .requery = pcmcia_requery, |
6e7b51a7 | 1335 | .validate = pccard_validate_cis, |
8e9e793d DB |
1336 | .suspend = pcmcia_bus_suspend, |
1337 | .resume = pcmcia_bus_resume, | |
90c6cdd1 DB |
1338 | }; |
1339 | ||
87373318 | 1340 | static int __devinit pcmcia_bus_add_socket(struct device *dev, |
d8539d81 | 1341 | struct class_interface *class_intf) |
1da177e4 | 1342 | { |
87373318 | 1343 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 LT |
1344 | int ret; |
1345 | ||
dc109497 DB |
1346 | socket = pcmcia_get_socket(socket); |
1347 | if (!socket) { | |
ac449d6e DB |
1348 | dev_printk(KERN_ERR, dev, |
1349 | "PCMCIA obtaining reference to socket failed\n"); | |
1da177e4 LT |
1350 | return -ENODEV; |
1351 | } | |
1352 | ||
6e7b51a7 DB |
1353 | ret = sysfs_create_bin_file(&dev->kobj, &pccard_cis_attr); |
1354 | if (ret) { | |
1355 | dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n"); | |
1356 | pcmcia_put_socket(socket); | |
1357 | return ret; | |
1358 | } | |
1359 | ||
e7a480d2 | 1360 | #ifdef CONFIG_PCMCIA_IOCTL |
dc109497 | 1361 | init_waitqueue_head(&socket->queue); |
e7a480d2 | 1362 | #endif |
dc109497 | 1363 | INIT_LIST_HEAD(&socket->devices_list); |
dc109497 DB |
1364 | memset(&socket->pcmcia_state, 0, sizeof(u8)); |
1365 | socket->device_count = 0; | |
1da177e4 | 1366 | |
90c6cdd1 | 1367 | ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback); |
1da177e4 | 1368 | if (ret) { |
ac449d6e | 1369 | dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n"); |
dc109497 | 1370 | pcmcia_put_socket(socket); |
9fea84f4 | 1371 | return ret; |
1da177e4 LT |
1372 | } |
1373 | ||
04de0816 DB |
1374 | atomic_set(&socket->present, 0); |
1375 | ||
1da177e4 LT |
1376 | return 0; |
1377 | } | |
1378 | ||
87373318 | 1379 | static void pcmcia_bus_remove_socket(struct device *dev, |
d8539d81 | 1380 | struct class_interface *class_intf) |
1da177e4 | 1381 | { |
87373318 | 1382 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 | 1383 | |
dc109497 | 1384 | if (!socket) |
1da177e4 LT |
1385 | return; |
1386 | ||
1387 | pccard_register_pcmcia(socket, NULL); | |
1388 | ||
dfbc9e9d | 1389 | /* unregister any unbound devices */ |
8e4d9dcb | 1390 | mutex_lock(&socket->skt_mutex); |
dfbc9e9d | 1391 | pcmcia_card_remove(socket, NULL); |
180c33ee | 1392 | release_cis_mem(socket); |
8e4d9dcb | 1393 | mutex_unlock(&socket->skt_mutex); |
dfbc9e9d | 1394 | |
6e7b51a7 DB |
1395 | sysfs_remove_bin_file(&dev->kobj, &pccard_cis_attr); |
1396 | ||
dc109497 | 1397 | pcmcia_put_socket(socket); |
1da177e4 LT |
1398 | |
1399 | return; | |
1400 | } | |
1401 | ||
1402 | ||
1403 | /* the pcmcia_bus_interface is used to handle pcmcia socket devices */ | |
ed49f5d0 | 1404 | static struct class_interface pcmcia_bus_interface __refdata = { |
1da177e4 | 1405 | .class = &pcmcia_socket_class, |
87373318 GKH |
1406 | .add_dev = &pcmcia_bus_add_socket, |
1407 | .remove_dev = &pcmcia_bus_remove_socket, | |
1da177e4 LT |
1408 | }; |
1409 | ||
1410 | ||
e7a480d2 | 1411 | struct bus_type pcmcia_bus_type = { |
1da177e4 | 1412 | .name = "pcmcia", |
312c004d | 1413 | .uevent = pcmcia_bus_uevent, |
1da177e4 LT |
1414 | .match = pcmcia_bus_match, |
1415 | .dev_attrs = pcmcia_dev_attrs, | |
1d0baa3a RK |
1416 | .probe = pcmcia_device_probe, |
1417 | .remove = pcmcia_device_remove, | |
8e9e793d DB |
1418 | .suspend = pcmcia_dev_suspend, |
1419 | .resume = pcmcia_dev_resume, | |
1da177e4 | 1420 | }; |
1da177e4 LT |
1421 | |
1422 | ||
1423 | static int __init init_pcmcia_bus(void) | |
1424 | { | |
ace7d477 RD |
1425 | int ret; |
1426 | ||
ace7d477 RD |
1427 | ret = bus_register(&pcmcia_bus_type); |
1428 | if (ret < 0) { | |
1429 | printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret); | |
1430 | return ret; | |
1431 | } | |
1432 | ret = class_interface_register(&pcmcia_bus_interface); | |
1433 | if (ret < 0) { | |
1434 | printk(KERN_WARNING | |
1435 | "pcmcia: class_interface_register error: %d\n", ret); | |
1436 | bus_unregister(&pcmcia_bus_type); | |
1437 | return ret; | |
1438 | } | |
1da177e4 | 1439 | |
e7a480d2 | 1440 | pcmcia_setup_ioctl(); |
1da177e4 LT |
1441 | |
1442 | return 0; | |
1443 | } | |
9fea84f4 | 1444 | fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that |
1da177e4 LT |
1445 | * pcmcia_socket_class is already registered */ |
1446 | ||
1447 | ||
1448 | static void __exit exit_pcmcia_bus(void) | |
1449 | { | |
e7a480d2 | 1450 | pcmcia_cleanup_ioctl(); |
1da177e4 | 1451 | |
e7a480d2 | 1452 | class_interface_unregister(&pcmcia_bus_interface); |
1da177e4 LT |
1453 | |
1454 | bus_unregister(&pcmcia_bus_type); | |
1455 | } | |
1456 | module_exit(exit_pcmcia_bus); | |
1457 | ||
1458 | ||
1da177e4 | 1459 | MODULE_ALIAS("ds"); |