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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> |
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); | |
d50dbec3 | 240 | dev_dbg(dev, "releasing device\n"); |
dc109497 | 241 | pcmcia_put_socket(p_dev->socket); |
bd65a685 | 242 | kfree(p_dev->devname); |
360b65b9 | 243 | kref_put(&p_dev->function_config->ref, pcmcia_release_function); |
1da177e4 LT |
244 | kfree(p_dev); |
245 | } | |
246 | ||
1d2c9042 | 247 | static void pcmcia_add_device_later(struct pcmcia_socket *s, int mfc) |
82d56e6d DB |
248 | { |
249 | if (!s->pcmcia_state.device_add_pending) { | |
d50dbec3 | 250 | dev_dbg(&s->dev, "scheduling to add %s secondary" |
d9d9ea01 | 251 | " device to %d\n", mfc ? "mfc" : "pfc", s->sock); |
82d56e6d | 252 | s->pcmcia_state.device_add_pending = 1; |
1d2c9042 | 253 | s->pcmcia_state.mfc_pfc = mfc; |
82d56e6d DB |
254 | schedule_work(&s->device_add); |
255 | } | |
256 | return; | |
257 | } | |
1da177e4 | 258 | |
9fea84f4 | 259 | static int pcmcia_device_probe(struct device *dev) |
1da177e4 LT |
260 | { |
261 | struct pcmcia_device *p_dev; | |
262 | struct pcmcia_driver *p_drv; | |
82d56e6d | 263 | struct pcmcia_device_id *did; |
f8cfa618 | 264 | struct pcmcia_socket *s; |
af2b3b50 | 265 | cistpl_config_t cis_config; |
1da177e4 LT |
266 | int ret = 0; |
267 | ||
268 | dev = get_device(dev); | |
269 | if (!dev) | |
270 | return -ENODEV; | |
271 | ||
272 | p_dev = to_pcmcia_dev(dev); | |
273 | p_drv = to_pcmcia_drv(dev->driver); | |
f8cfa618 | 274 | s = p_dev->socket; |
1da177e4 | 275 | |
f3e7a7b6 | 276 | /* The PCMCIA code passes the match data in via dev_set_drvdata(dev) |
cec5eb7b AC |
277 | * which is an ugly hack. Once the driver probe is called it may |
278 | * and often will overwrite the match data so we must save it first | |
279 | * | |
280 | * handle pseudo multifunction devices: | |
281 | * there are at most two pseudo multifunction devices. | |
282 | * if we're matching against the first, schedule a | |
283 | * call which will then check whether there are two | |
284 | * pseudo devices, and if not, add the second one. | |
285 | */ | |
f3e7a7b6 | 286 | did = dev_get_drvdata(&p_dev->dev); |
cec5eb7b | 287 | |
d50dbec3 | 288 | dev_dbg(dev, "trying to bind to %s\n", p_drv->drv.name); |
d9d9ea01 | 289 | |
360b65b9 DB |
290 | if ((!p_drv->probe) || (!p_dev->function_config) || |
291 | (!try_module_get(p_drv->owner))) { | |
1da177e4 LT |
292 | ret = -EINVAL; |
293 | goto put_dev; | |
294 | } | |
295 | ||
af2b3b50 DB |
296 | /* set up some more device information */ |
297 | ret = pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_CONFIG, | |
298 | &cis_config); | |
299 | if (!ret) { | |
300 | p_dev->conf.ConfigBase = cis_config.base; | |
301 | p_dev->conf.Present = cis_config.rmask[0]; | |
302 | } else { | |
ac449d6e DB |
303 | dev_printk(KERN_INFO, dev, |
304 | "pcmcia: could not parse base and rmask0 of CIS\n"); | |
af2b3b50 DB |
305 | p_dev->conf.ConfigBase = 0; |
306 | p_dev->conf.Present = 0; | |
307 | } | |
308 | ||
f8cfa618 | 309 | ret = p_drv->probe(p_dev); |
d9d9ea01 | 310 | if (ret) { |
d50dbec3 | 311 | dev_dbg(dev, "binding to %s failed with %d\n", |
ac449d6e | 312 | p_drv->drv.name, ret); |
82d56e6d | 313 | goto put_module; |
d9d9ea01 | 314 | } |
82d56e6d | 315 | |
00ce99ff | 316 | mutex_lock(&s->ops_mutex); |
4ceadbf5 | 317 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
82d56e6d | 318 | (p_dev->socket->device_count == 1) && (p_dev->device_no == 0)) |
1d2c9042 | 319 | pcmcia_add_device_later(p_dev->socket, 0); |
00ce99ff | 320 | mutex_unlock(&s->ops_mutex); |
f8cfa618 | 321 | |
cec5eb7b | 322 | put_module: |
1da177e4 LT |
323 | if (ret) |
324 | module_put(p_drv->owner); | |
cec5eb7b | 325 | put_dev: |
f8cfa618 | 326 | if (ret) |
1da177e4 | 327 | put_device(dev); |
9fea84f4 | 328 | return ret; |
1da177e4 LT |
329 | } |
330 | ||
331 | ||
d6ff5a85 DB |
332 | /* |
333 | * Removes a PCMCIA card from the device tree and socket list. | |
334 | */ | |
335 | static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *leftover) | |
336 | { | |
337 | struct pcmcia_device *p_dev; | |
338 | struct pcmcia_device *tmp; | |
d6ff5a85 | 339 | |
d50dbec3 | 340 | dev_dbg(leftover ? &leftover->dev : &s->dev, |
ac449d6e DB |
341 | "pcmcia_card_remove(%d) %s\n", s->sock, |
342 | leftover ? leftover->devname : ""); | |
d6ff5a85 | 343 | |
00ce99ff | 344 | mutex_lock(&s->ops_mutex); |
d6ff5a85 DB |
345 | if (!leftover) |
346 | s->device_count = 0; | |
347 | else | |
348 | s->device_count = 1; | |
00ce99ff | 349 | mutex_unlock(&s->ops_mutex); |
d6ff5a85 DB |
350 | |
351 | /* unregister all pcmcia_devices registered with this socket, except leftover */ | |
352 | list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) { | |
353 | if (p_dev == leftover) | |
354 | continue; | |
355 | ||
00ce99ff | 356 | mutex_lock(&s->ops_mutex); |
d6ff5a85 | 357 | list_del(&p_dev->socket_device_list); |
9fea84f4 | 358 | p_dev->_removed = 1; |
00ce99ff | 359 | mutex_unlock(&s->ops_mutex); |
d6ff5a85 | 360 | |
d50dbec3 | 361 | dev_dbg(&p_dev->dev, "unregistering device\n"); |
d6ff5a85 DB |
362 | device_unregister(&p_dev->dev); |
363 | } | |
364 | ||
365 | return; | |
366 | } | |
367 | ||
9fea84f4 | 368 | static int pcmcia_device_remove(struct device *dev) |
1da177e4 LT |
369 | { |
370 | struct pcmcia_device *p_dev; | |
371 | struct pcmcia_driver *p_drv; | |
d6ff5a85 | 372 | struct pcmcia_device_id *did; |
cc3b4866 | 373 | int i; |
1da177e4 | 374 | |
1da177e4 LT |
375 | p_dev = to_pcmcia_dev(dev); |
376 | p_drv = to_pcmcia_drv(dev->driver); | |
d6ff5a85 | 377 | |
d50dbec3 | 378 | dev_dbg(dev, "removing device\n"); |
d9d9ea01 | 379 | |
d6ff5a85 DB |
380 | /* If we're removing the primary module driving a |
381 | * pseudo multi-function card, we need to unbind | |
382 | * all devices | |
383 | */ | |
f3e7a7b6 | 384 | did = dev_get_drvdata(&p_dev->dev); |
b2f51a1c | 385 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
e6e4f397 | 386 | (p_dev->socket->device_count > 0) && |
d6ff5a85 DB |
387 | (p_dev->device_no == 0)) |
388 | pcmcia_card_remove(p_dev->socket, p_dev); | |
389 | ||
390 | /* detach the "instance" */ | |
f3990715 DB |
391 | if (!p_drv) |
392 | return 0; | |
1da177e4 | 393 | |
f3990715 | 394 | if (p_drv->remove) |
9fea84f4 | 395 | p_drv->remove(p_dev); |
cc3b4866 | 396 | |
a0aab143 DB |
397 | p_dev->dev_node = NULL; |
398 | ||
f3990715 | 399 | /* check for proper unloading */ |
e2d40963 | 400 | if (p_dev->_irq || p_dev->_io || p_dev->_locked) |
ac449d6e DB |
401 | dev_printk(KERN_INFO, dev, |
402 | "pcmcia: driver %s did not release config properly\n", | |
403 | p_drv->drv.name); | |
cc3b4866 | 404 | |
f3990715 | 405 | for (i = 0; i < MAX_WIN; i++) |
e2d40963 | 406 | if (p_dev->_win & CLIENT_WIN_REQ(i)) |
ac449d6e DB |
407 | dev_printk(KERN_INFO, dev, |
408 | "pcmcia: driver %s did not release window properly\n", | |
409 | p_drv->drv.name); | |
cc3b4866 | 410 | |
f3990715 DB |
411 | /* references from pcmcia_probe_device */ |
412 | pcmcia_put_dev(p_dev); | |
413 | module_put(p_drv->owner); | |
1da177e4 LT |
414 | |
415 | return 0; | |
416 | } | |
417 | ||
418 | ||
1da177e4 LT |
419 | /* |
420 | * pcmcia_device_query -- determine information about a pcmcia device | |
421 | */ | |
422 | static int pcmcia_device_query(struct pcmcia_device *p_dev) | |
423 | { | |
424 | cistpl_manfid_t manf_id; | |
425 | cistpl_funcid_t func_id; | |
76fa82fb | 426 | cistpl_vers_1_t *vers1; |
1da177e4 LT |
427 | unsigned int i; |
428 | ||
76fa82fb IM |
429 | vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL); |
430 | if (!vers1) | |
431 | return -ENOMEM; | |
432 | ||
84897fc0 | 433 | if (!pccard_read_tuple(p_dev->socket, BIND_FN_ALL, |
1da177e4 | 434 | CISTPL_MANFID, &manf_id)) { |
af461fc1 | 435 | mutex_lock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
436 | p_dev->manf_id = manf_id.manf; |
437 | p_dev->card_id = manf_id.card; | |
438 | p_dev->has_manf_id = 1; | |
439 | p_dev->has_card_id = 1; | |
af461fc1 | 440 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
441 | } |
442 | ||
443 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, | |
444 | CISTPL_FUNCID, &func_id)) { | |
af461fc1 | 445 | mutex_lock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
446 | p_dev->func_id = func_id.func; |
447 | p_dev->has_func_id = 1; | |
af461fc1 | 448 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
449 | } else { |
450 | /* rule of thumb: cards with no FUNCID, but with | |
451 | * common memory device geometry information, are | |
452 | * probably memory cards (from pcmcia-cs) */ | |
76fa82fb IM |
453 | cistpl_device_geo_t *devgeo; |
454 | ||
455 | devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL); | |
456 | if (!devgeo) { | |
457 | kfree(vers1); | |
458 | return -ENOMEM; | |
459 | } | |
1da177e4 | 460 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
76fa82fb | 461 | CISTPL_DEVICE_GEO, devgeo)) { |
d50dbec3 | 462 | dev_dbg(&p_dev->dev, |
ac449d6e DB |
463 | "mem device geometry probably means " |
464 | "FUNCID_MEMORY\n"); | |
af461fc1 | 465 | mutex_lock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
466 | p_dev->func_id = CISTPL_FUNCID_MEMORY; |
467 | p_dev->has_func_id = 1; | |
af461fc1 | 468 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 | 469 | } |
76fa82fb | 470 | kfree(devgeo); |
1da177e4 LT |
471 | } |
472 | ||
84897fc0 | 473 | if (!pccard_read_tuple(p_dev->socket, BIND_FN_ALL, CISTPL_VERS_1, |
76fa82fb | 474 | vers1)) { |
af461fc1 | 475 | mutex_lock(&p_dev->socket->ops_mutex); |
c5e09528 | 476 | for (i = 0; i < min_t(unsigned int, 4, vers1->ns); i++) { |
1da177e4 LT |
477 | char *tmp; |
478 | unsigned int length; | |
479 | ||
76fa82fb | 480 | tmp = vers1->str + vers1->ofs[i]; |
1da177e4 LT |
481 | |
482 | length = strlen(tmp) + 1; | |
6e3d4f25 | 483 | if ((length < 2) || (length > 255)) |
1da177e4 LT |
484 | continue; |
485 | ||
486 | p_dev->prod_id[i] = kmalloc(sizeof(char) * length, | |
487 | GFP_KERNEL); | |
488 | if (!p_dev->prod_id[i]) | |
489 | continue; | |
490 | ||
491 | p_dev->prod_id[i] = strncpy(p_dev->prod_id[i], | |
492 | tmp, length); | |
493 | } | |
af461fc1 | 494 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
495 | } |
496 | ||
76fa82fb | 497 | kfree(vers1); |
1da177e4 LT |
498 | return 0; |
499 | } | |
500 | ||
501 | ||
502 | /* device_add_lock is needed to avoid double registration by cardmgr and kernel. | |
503 | * Serializes pcmcia_device_add; will most likely be removed in future. | |
504 | * | |
505 | * While it has the caveat that adding new PCMCIA devices inside(!) device_register() | |
506 | * won't work, this doesn't matter much at the moment: the driver core doesn't | |
507 | * support it either. | |
508 | */ | |
7fe908dd | 509 | static DEFINE_MUTEX(device_add_lock); |
1da177e4 | 510 | |
9fea84f4 | 511 | struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int function) |
1da177e4 | 512 | { |
360b65b9 | 513 | struct pcmcia_device *p_dev, *tmp_dev; |
1da177e4 | 514 | |
dc109497 | 515 | s = pcmcia_get_socket(s); |
1da177e4 LT |
516 | if (!s) |
517 | return NULL; | |
518 | ||
7fe908dd | 519 | mutex_lock(&device_add_lock); |
1da177e4 | 520 | |
d50dbec3 | 521 | pr_debug("adding device to %d, function %d\n", s->sock, function); |
d9d9ea01 | 522 | |
8084b372 | 523 | p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL); |
1da177e4 LT |
524 | if (!p_dev) |
525 | goto err_put; | |
1da177e4 | 526 | |
00ce99ff | 527 | mutex_lock(&s->ops_mutex); |
1da177e4 | 528 | p_dev->device_no = (s->device_count++); |
00ce99ff | 529 | mutex_unlock(&s->ops_mutex); |
e6e4f397 DB |
530 | |
531 | /* max of 4 devices per card */ | |
532 | if (p_dev->device_no >= 4) | |
533 | goto err_free; | |
534 | ||
535 | p_dev->socket = s; | |
1da177e4 LT |
536 | p_dev->func = function; |
537 | ||
538 | p_dev->dev.bus = &pcmcia_bus_type; | |
87373318 | 539 | p_dev->dev.parent = s->dev.parent; |
1da177e4 | 540 | p_dev->dev.release = pcmcia_release_dev; |
43d9f7fd JB |
541 | /* by default don't allow DMA */ |
542 | p_dev->dma_mask = DMA_MASK_NONE; | |
543 | p_dev->dev.dma_mask = &p_dev->dma_mask; | |
25096986 KS |
544 | dev_set_name(&p_dev->dev, "%d.%d", p_dev->socket->sock, p_dev->device_no); |
545 | if (!dev_name(&p_dev->dev)) | |
546 | goto err_free; | |
547 | p_dev->devname = kasprintf(GFP_KERNEL, "pcmcia%s", dev_name(&p_dev->dev)); | |
bd65a685 BG |
548 | if (!p_dev->devname) |
549 | goto err_free; | |
d50dbec3 | 550 | dev_dbg(&p_dev->dev, "devname is %s\n", p_dev->devname); |
1da177e4 | 551 | |
00ce99ff | 552 | mutex_lock(&s->ops_mutex); |
360b65b9 DB |
553 | |
554 | /* | |
555 | * p_dev->function_config must be the same for all card functions. | |
556 | * Note that this is serialized by the device_add_lock, so that | |
557 | * only one such struct will be created. | |
558 | */ | |
9fea84f4 DB |
559 | list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list) |
560 | if (p_dev->func == tmp_dev->func) { | |
360b65b9 | 561 | p_dev->function_config = tmp_dev->function_config; |
3e879f61 K |
562 | p_dev->io = tmp_dev->io; |
563 | p_dev->irq = tmp_dev->irq; | |
360b65b9 DB |
564 | kref_get(&p_dev->function_config->ref); |
565 | } | |
566 | ||
567 | /* Add to the list in pcmcia_bus_socket */ | |
6171b88b | 568 | list_add(&p_dev->socket_device_list, &s->devices_list); |
360b65b9 | 569 | |
00ce99ff | 570 | mutex_unlock(&s->ops_mutex); |
1da177e4 | 571 | |
360b65b9 | 572 | if (!p_dev->function_config) { |
d50dbec3 | 573 | dev_dbg(&p_dev->dev, "creating config_t\n"); |
360b65b9 DB |
574 | p_dev->function_config = kzalloc(sizeof(struct config_t), |
575 | GFP_KERNEL); | |
576 | if (!p_dev->function_config) | |
577 | goto err_unreg; | |
578 | kref_init(&p_dev->function_config->ref); | |
579 | } | |
580 | ||
ac449d6e DB |
581 | dev_printk(KERN_NOTICE, &p_dev->dev, |
582 | "pcmcia: registering new device %s\n", | |
583 | p_dev->devname); | |
807277cb | 584 | |
1ad275e3 DB |
585 | pcmcia_device_query(p_dev); |
586 | ||
360b65b9 DB |
587 | if (device_register(&p_dev->dev)) |
588 | goto err_unreg; | |
1da177e4 | 589 | |
7fe908dd | 590 | mutex_unlock(&device_add_lock); |
1da177e4 LT |
591 | |
592 | return p_dev; | |
593 | ||
360b65b9 | 594 | err_unreg: |
00ce99ff | 595 | mutex_lock(&s->ops_mutex); |
360b65b9 | 596 | list_del(&p_dev->socket_device_list); |
00ce99ff | 597 | mutex_unlock(&s->ops_mutex); |
360b65b9 | 598 | |
1da177e4 | 599 | err_free: |
00ce99ff | 600 | mutex_lock(&s->ops_mutex); |
e6e4f397 | 601 | s->device_count--; |
00ce99ff | 602 | mutex_unlock(&s->ops_mutex); |
e6e4f397 | 603 | |
bd65a685 | 604 | kfree(p_dev->devname); |
1da177e4 | 605 | kfree(p_dev); |
1da177e4 | 606 | err_put: |
7fe908dd | 607 | mutex_unlock(&device_add_lock); |
dc109497 | 608 | pcmcia_put_socket(s); |
1da177e4 LT |
609 | |
610 | return NULL; | |
611 | } | |
612 | ||
613 | ||
614 | static int pcmcia_card_add(struct pcmcia_socket *s) | |
615 | { | |
1da177e4 | 616 | cistpl_longlink_mfc_t mfc; |
c5081d5f | 617 | unsigned int no_funcs, i, no_chains; |
cfe5d809 | 618 | int ret = -EAGAIN; |
1da177e4 | 619 | |
cfe5d809 | 620 | mutex_lock(&s->ops_mutex); |
d9d9ea01 | 621 | if (!(s->resource_setup_done)) { |
d50dbec3 | 622 | dev_dbg(&s->dev, |
ac449d6e | 623 | "no resources available, delaying card_add\n"); |
cfe5d809 | 624 | mutex_unlock(&s->ops_mutex); |
1da177e4 | 625 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 626 | } |
1da177e4 | 627 | |
d9d9ea01 | 628 | if (pcmcia_validate_mem(s)) { |
d50dbec3 | 629 | dev_dbg(&s->dev, "validating mem resources failed, " |
d9d9ea01 | 630 | "delaying card_add\n"); |
cfe5d809 | 631 | mutex_unlock(&s->ops_mutex); |
de75914e | 632 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 633 | } |
cfe5d809 | 634 | mutex_unlock(&s->ops_mutex); |
de75914e | 635 | |
84897fc0 | 636 | ret = pccard_validate_cis(s, &no_chains); |
c5081d5f | 637 | if (ret || !no_chains) { |
d50dbec3 | 638 | dev_dbg(&s->dev, "invalid CIS or invalid resources\n"); |
1da177e4 LT |
639 | return -ENODEV; |
640 | } | |
641 | ||
642 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
643 | no_funcs = mfc.nfn; | |
644 | else | |
645 | no_funcs = 1; | |
1d2c9042 | 646 | s->functions = no_funcs; |
1da177e4 | 647 | |
9fea84f4 | 648 | for (i = 0; i < no_funcs; i++) |
dc109497 | 649 | pcmcia_device_add(s, i); |
1da177e4 | 650 | |
9fea84f4 | 651 | return ret; |
1da177e4 LT |
652 | } |
653 | ||
654 | ||
4796b71f | 655 | static void pcmcia_delayed_add_device(struct work_struct *work) |
1ad275e3 | 656 | { |
c4028958 DH |
657 | struct pcmcia_socket *s = |
658 | container_of(work, struct pcmcia_socket, device_add); | |
3d3de32f | 659 | u8 mfc_pfc; |
3d3de32f | 660 | |
00ce99ff | 661 | mutex_lock(&s->ops_mutex); |
3d3de32f | 662 | mfc_pfc = s->pcmcia_state.mfc_pfc; |
b5e43913 | 663 | s->pcmcia_state.device_add_pending = 0; |
1d2c9042 | 664 | s->pcmcia_state.mfc_pfc = 0; |
00ce99ff | 665 | mutex_unlock(&s->ops_mutex); |
3d3de32f DB |
666 | |
667 | dev_dbg(&s->dev, "adding additional device to %d\n", s->sock); | |
668 | pcmcia_device_add(s, mfc_pfc); | |
1ad275e3 DB |
669 | } |
670 | ||
af461fc1 | 671 | static int pcmcia_requery_callback(struct device *dev, void * _data) |
ff1fa9ef | 672 | { |
e2f0b534 | 673 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
d9d9ea01 | 674 | if (!p_dev->dev.driver) { |
d50dbec3 | 675 | dev_dbg(dev, "update device information\n"); |
e2f0b534 | 676 | pcmcia_device_query(p_dev); |
d9d9ea01 | 677 | } |
e2f0b534 DB |
678 | |
679 | return 0; | |
680 | } | |
681 | ||
af461fc1 | 682 | static void pcmcia_requery(struct pcmcia_socket *s) |
e2f0b534 | 683 | { |
af461fc1 | 684 | int present; |
e2f0b534 | 685 | |
af461fc1 DB |
686 | mutex_lock(&s->ops_mutex); |
687 | present = s->pcmcia_state.present; | |
688 | mutex_unlock(&s->ops_mutex); | |
e2f0b534 | 689 | |
af461fc1 DB |
690 | if (!present) |
691 | return; | |
4ae1cbf1 | 692 | |
af461fc1 DB |
693 | if (s->functions == 0) { |
694 | pcmcia_card_add(s); | |
695 | return; | |
e2f0b534 DB |
696 | } |
697 | ||
698 | /* some device information might have changed because of a CIS | |
699 | * update or because we can finally read it correctly... so | |
700 | * determine it again, overwriting old values if necessary. */ | |
af461fc1 DB |
701 | bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery_callback); |
702 | ||
703 | /* if the CIS changed, we need to check whether the number of | |
704 | * functions changed. */ | |
705 | if (s->fake_cis) { | |
706 | int old_funcs, new_funcs; | |
707 | cistpl_longlink_mfc_t mfc; | |
708 | ||
709 | /* does this cis override add or remove functions? */ | |
710 | old_funcs = s->functions; | |
711 | ||
712 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, | |
713 | &mfc)) | |
714 | new_funcs = mfc.nfn; | |
715 | else | |
716 | new_funcs = 1; | |
717 | if (old_funcs > new_funcs) { | |
718 | pcmcia_card_remove(s, NULL); | |
719 | pcmcia_card_add(s); | |
720 | } else if (new_funcs > old_funcs) { | |
721 | s->functions = new_funcs; | |
722 | pcmcia_device_add(s, 1); | |
723 | } | |
724 | } | |
e2f0b534 DB |
725 | |
726 | /* we re-scan all devices, not just the ones connected to this | |
727 | * socket. This does not matter, though. */ | |
af461fc1 DB |
728 | if (bus_rescan_devices(&pcmcia_bus_type)) |
729 | dev_warn(&s->dev, "rescanning the bus failed\n"); | |
ff1fa9ef | 730 | } |
1ad275e3 | 731 | |
af461fc1 | 732 | |
1d2c9042 DB |
733 | #ifdef CONFIG_PCMCIA_LOAD_CIS |
734 | ||
735 | /** | |
736 | * pcmcia_load_firmware - load CIS from userspace if device-provided is broken | |
78187865 RD |
737 | * @dev: the pcmcia device which needs a CIS override |
738 | * @filename: requested filename in /lib/firmware/ | |
1d2c9042 DB |
739 | * |
740 | * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if | |
741 | * the one provided by the card is broken. The firmware files reside in | |
742 | * /lib/firmware/ in userspace. | |
743 | */ | |
744 | static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
745 | { | |
746 | struct pcmcia_socket *s = dev->socket; | |
747 | const struct firmware *fw; | |
1d2c9042 DB |
748 | int ret = -ENOMEM; |
749 | int no_funcs; | |
750 | int old_funcs; | |
1d2c9042 DB |
751 | cistpl_longlink_mfc_t mfc; |
752 | ||
753 | if (!filename) | |
754 | return -EINVAL; | |
755 | ||
d50dbec3 | 756 | dev_dbg(&dev->dev, "trying to load CIS file %s\n", filename); |
1d2c9042 | 757 | |
ed62acec | 758 | if (request_firmware(&fw, filename, &dev->dev) == 0) { |
d9d9ea01 DB |
759 | if (fw->size >= CISTPL_MAX_CIS_SIZE) { |
760 | ret = -EINVAL; | |
ac449d6e DB |
761 | dev_printk(KERN_ERR, &dev->dev, |
762 | "pcmcia: CIS override is too big\n"); | |
1d2c9042 | 763 | goto release; |
d9d9ea01 | 764 | } |
1d2c9042 | 765 | |
53efec95 | 766 | if (!pcmcia_replace_cis(s, fw->data, fw->size)) |
1d2c9042 | 767 | ret = 0; |
d9d9ea01 | 768 | else { |
ac449d6e DB |
769 | dev_printk(KERN_ERR, &dev->dev, |
770 | "pcmcia: CIS override failed\n"); | |
d9d9ea01 DB |
771 | goto release; |
772 | } | |
773 | ||
1d2c9042 DB |
774 | |
775 | /* update information */ | |
776 | pcmcia_device_query(dev); | |
777 | ||
778 | /* does this cis override add or remove functions? */ | |
779 | old_funcs = s->functions; | |
780 | ||
781 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
782 | no_funcs = mfc.nfn; | |
783 | else | |
784 | no_funcs = 1; | |
785 | s->functions = no_funcs; | |
786 | ||
787 | if (old_funcs > no_funcs) | |
788 | pcmcia_card_remove(s, dev); | |
3d3de32f | 789 | else if (no_funcs > old_funcs) { |
00ce99ff | 790 | mutex_lock(&s->ops_mutex); |
1d2c9042 | 791 | pcmcia_add_device_later(s, 1); |
00ce99ff | 792 | mutex_unlock(&s->ops_mutex); |
3d3de32f | 793 | } |
1d2c9042 DB |
794 | } |
795 | release: | |
796 | release_firmware(fw); | |
797 | ||
9fea84f4 | 798 | return ret; |
1d2c9042 DB |
799 | } |
800 | ||
801 | #else /* !CONFIG_PCMCIA_LOAD_CIS */ | |
802 | ||
803 | static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
804 | { | |
805 | return -ENODEV; | |
806 | } | |
807 | ||
808 | #endif | |
809 | ||
810 | ||
1ad275e3 DB |
811 | static inline int pcmcia_devmatch(struct pcmcia_device *dev, |
812 | struct pcmcia_device_id *did) | |
813 | { | |
814 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) { | |
815 | if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id)) | |
816 | return 0; | |
817 | } | |
818 | ||
819 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) { | |
820 | if ((!dev->has_card_id) || (dev->card_id != did->card_id)) | |
821 | return 0; | |
822 | } | |
823 | ||
824 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) { | |
825 | if (dev->func != did->function) | |
826 | return 0; | |
827 | } | |
828 | ||
829 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) { | |
830 | if (!dev->prod_id[0]) | |
831 | return 0; | |
832 | if (strcmp(did->prod_id[0], dev->prod_id[0])) | |
833 | return 0; | |
834 | } | |
835 | ||
836 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) { | |
837 | if (!dev->prod_id[1]) | |
838 | return 0; | |
839 | if (strcmp(did->prod_id[1], dev->prod_id[1])) | |
840 | return 0; | |
841 | } | |
842 | ||
843 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) { | |
844 | if (!dev->prod_id[2]) | |
845 | return 0; | |
846 | if (strcmp(did->prod_id[2], dev->prod_id[2])) | |
847 | return 0; | |
848 | } | |
849 | ||
850 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) { | |
851 | if (!dev->prod_id[3]) | |
852 | return 0; | |
853 | if (strcmp(did->prod_id[3], dev->prod_id[3])) | |
854 | return 0; | |
855 | } | |
856 | ||
857 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { | |
1ad275e3 DB |
858 | if (dev->device_no != did->device_no) |
859 | return 0; | |
860 | } | |
861 | ||
862 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { | |
94a819f8 DB |
863 | int ret; |
864 | ||
1ad275e3 DB |
865 | if ((!dev->has_func_id) || (dev->func_id != did->func_id)) |
866 | return 0; | |
867 | ||
868 | /* if this is a pseudo-multi-function device, | |
869 | * we need explicit matches */ | |
870 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) | |
871 | return 0; | |
872 | if (dev->device_no) | |
873 | return 0; | |
874 | ||
875 | /* also, FUNC_ID matching needs to be activated by userspace | |
876 | * after it has re-checked that there is no possible module | |
877 | * with a prod_id/manf_id/card_id match. | |
878 | */ | |
94a819f8 DB |
879 | mutex_lock(&dev->socket->ops_mutex); |
880 | ret = dev->allow_func_id_match; | |
881 | mutex_unlock(&dev->socket->ops_mutex); | |
882 | ||
883 | if (!ret) { | |
884 | dev_dbg(&dev->dev, | |
885 | "skipping FUNC_ID match until userspace ACK\n"); | |
1ad275e3 | 886 | return 0; |
94a819f8 | 887 | } |
1ad275e3 DB |
888 | } |
889 | ||
ea7b3882 | 890 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { |
d50dbec3 | 891 | dev_dbg(&dev->dev, "device needs a fake CIS\n"); |
daa9517d DB |
892 | if (!dev->socket->fake_cis) |
893 | pcmcia_load_firmware(dev, did->cisfile); | |
894 | ||
895 | if (!dev->socket->fake_cis) | |
ea7b3882 | 896 | return 0; |
ea7b3882 DB |
897 | } |
898 | ||
f602ff7e DB |
899 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { |
900 | int i; | |
9fea84f4 | 901 | for (i = 0; i < 4; i++) |
f602ff7e DB |
902 | if (dev->prod_id[i]) |
903 | return 0; | |
904 | if (dev->has_manf_id || dev->has_card_id || dev->has_func_id) | |
905 | return 0; | |
906 | } | |
907 | ||
f3e7a7b6 | 908 | dev_set_drvdata(&dev->dev, did); |
1ad275e3 DB |
909 | |
910 | return 1; | |
911 | } | |
912 | ||
913 | ||
9fea84f4 DB |
914 | static int pcmcia_bus_match(struct device *dev, struct device_driver *drv) |
915 | { | |
916 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
917 | struct pcmcia_driver *p_drv = to_pcmcia_drv(drv); | |
1ad275e3 | 918 | struct pcmcia_device_id *did = p_drv->id_table; |
6179b556 BW |
919 | struct pcmcia_dynid *dynid; |
920 | ||
921 | /* match dynamic devices first */ | |
3f565232 | 922 | mutex_lock(&p_drv->dynids.lock); |
6179b556 | 923 | list_for_each_entry(dynid, &p_drv->dynids.list, node) { |
d50dbec3 | 924 | dev_dbg(dev, "trying to match to %s\n", drv->name); |
6179b556 | 925 | if (pcmcia_devmatch(p_dev, &dynid->id)) { |
d50dbec3 | 926 | dev_dbg(dev, "matched to %s\n", drv->name); |
3f565232 | 927 | mutex_unlock(&p_drv->dynids.lock); |
6179b556 BW |
928 | return 1; |
929 | } | |
930 | } | |
3f565232 | 931 | mutex_unlock(&p_drv->dynids.lock); |
1da177e4 | 932 | |
0e0fad8f | 933 | #ifdef CONFIG_PCMCIA_IOCTL |
1da177e4 | 934 | /* matching by cardmgr */ |
d9d9ea01 | 935 | if (p_dev->cardmgr == p_drv) { |
d50dbec3 | 936 | dev_dbg(dev, "cardmgr matched to %s\n", drv->name); |
1da177e4 | 937 | return 1; |
d9d9ea01 | 938 | } |
0e0fad8f | 939 | #endif |
1da177e4 | 940 | |
1ad275e3 | 941 | while (did && did->match_flags) { |
d50dbec3 | 942 | dev_dbg(dev, "trying to match to %s\n", drv->name); |
d9d9ea01 | 943 | if (pcmcia_devmatch(p_dev, did)) { |
d50dbec3 | 944 | dev_dbg(dev, "matched to %s\n", drv->name); |
1ad275e3 | 945 | return 1; |
d9d9ea01 | 946 | } |
1ad275e3 DB |
947 | did++; |
948 | } | |
949 | ||
1da177e4 LT |
950 | return 0; |
951 | } | |
952 | ||
840c2ac5 DB |
953 | #ifdef CONFIG_HOTPLUG |
954 | ||
7eff2e7a | 955 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
956 | { |
957 | struct pcmcia_device *p_dev; | |
7eff2e7a | 958 | int i; |
840c2ac5 DB |
959 | u32 hash[4] = { 0, 0, 0, 0}; |
960 | ||
961 | if (!dev) | |
962 | return -ENODEV; | |
963 | ||
964 | p_dev = to_pcmcia_dev(dev); | |
965 | ||
966 | /* calculate hashes */ | |
9fea84f4 | 967 | for (i = 0; i < 4; i++) { |
840c2ac5 DB |
968 | if (!p_dev->prod_id[i]) |
969 | continue; | |
970 | hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); | |
971 | } | |
972 | ||
7eff2e7a | 973 | if (add_uevent_var(env, "SOCKET_NO=%u", p_dev->socket->sock)) |
840c2ac5 DB |
974 | return -ENOMEM; |
975 | ||
7eff2e7a | 976 | if (add_uevent_var(env, "DEVICE_NO=%02X", p_dev->device_no)) |
840c2ac5 DB |
977 | return -ENOMEM; |
978 | ||
7eff2e7a | 979 | if (add_uevent_var(env, "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" |
312c004d KS |
980 | "pa%08Xpb%08Xpc%08Xpd%08X", |
981 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
982 | p_dev->has_card_id ? p_dev->card_id : 0, | |
983 | p_dev->has_func_id ? p_dev->func_id : 0, | |
984 | p_dev->func, | |
985 | p_dev->device_no, | |
986 | hash[0], | |
987 | hash[1], | |
988 | hash[2], | |
989 | hash[3])) | |
840c2ac5 DB |
990 | return -ENOMEM; |
991 | ||
840c2ac5 DB |
992 | return 0; |
993 | } | |
994 | ||
995 | #else | |
996 | ||
7eff2e7a | 997 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
998 | { |
999 | return -ENODEV; | |
1000 | } | |
1001 | ||
1002 | #endif | |
1003 | ||
3f8df781 AS |
1004 | /************************ runtime PM support ***************************/ |
1005 | ||
1006 | static int pcmcia_dev_suspend(struct device *dev, pm_message_t state); | |
1007 | static int pcmcia_dev_resume(struct device *dev); | |
1008 | ||
1009 | static int runtime_suspend(struct device *dev) | |
1010 | { | |
1011 | int rc; | |
1012 | ||
1013 | down(&dev->sem); | |
1014 | rc = pcmcia_dev_suspend(dev, PMSG_SUSPEND); | |
1015 | up(&dev->sem); | |
3f8df781 AS |
1016 | return rc; |
1017 | } | |
1018 | ||
933a838a | 1019 | static int runtime_resume(struct device *dev) |
3f8df781 AS |
1020 | { |
1021 | int rc; | |
1022 | ||
1023 | down(&dev->sem); | |
1024 | rc = pcmcia_dev_resume(dev); | |
1025 | up(&dev->sem); | |
933a838a | 1026 | return rc; |
3f8df781 AS |
1027 | } |
1028 | ||
1da177e4 LT |
1029 | /************************ per-device sysfs output ***************************/ |
1030 | ||
1031 | #define pcmcia_device_attr(field, test, format) \ | |
e404e274 | 1032 | static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1033 | { \ |
1034 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
9fea84f4 | 1035 | return p_dev->test ? sprintf(buf, format, p_dev->field) : -ENODEV; \ |
1da177e4 LT |
1036 | } |
1037 | ||
1038 | #define pcmcia_device_stringattr(name, field) \ | |
e404e274 | 1039 | static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1040 | { \ |
1041 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
9fea84f4 | 1042 | return p_dev->field ? sprintf(buf, "%s\n", p_dev->field) : -ENODEV; \ |
1da177e4 LT |
1043 | } |
1044 | ||
1045 | pcmcia_device_attr(func, socket, "0x%02x\n"); | |
1046 | pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); | |
1047 | pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); | |
1048 | pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); | |
1049 | pcmcia_device_stringattr(prod_id1, prod_id[0]); | |
1050 | pcmcia_device_stringattr(prod_id2, prod_id[1]); | |
1051 | pcmcia_device_stringattr(prod_id3, prod_id[2]); | |
1052 | pcmcia_device_stringattr(prod_id4, prod_id[3]); | |
1053 | ||
db1019ca DB |
1054 | |
1055 | static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf) | |
1056 | { | |
1057 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1058 | ||
f6fbe01a | 1059 | if (p_dev->suspended) |
db1019ca DB |
1060 | return sprintf(buf, "off\n"); |
1061 | else | |
1062 | return sprintf(buf, "on\n"); | |
1063 | } | |
1064 | ||
1065 | static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr, | |
1066 | const char *buf, size_t count) | |
1067 | { | |
1068 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1069 | int ret = 0; | |
1070 | ||
9fea84f4 DB |
1071 | if (!count) |
1072 | return -EINVAL; | |
db1019ca | 1073 | |
f6fbe01a | 1074 | if ((!p_dev->suspended) && !strncmp(buf, "off", 3)) |
3f8df781 | 1075 | ret = runtime_suspend(dev); |
f6fbe01a | 1076 | else if (p_dev->suspended && !strncmp(buf, "on", 2)) |
933a838a | 1077 | ret = runtime_resume(dev); |
db1019ca DB |
1078 | |
1079 | return ret ? ret : count; | |
1080 | } | |
1081 | ||
1082 | ||
3704511b | 1083 | static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) |
3248ff43 DB |
1084 | { |
1085 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1086 | int i; | |
1087 | u32 hash[4] = { 0, 0, 0, 0}; | |
1088 | ||
1089 | /* calculate hashes */ | |
9fea84f4 | 1090 | for (i = 0; i < 4; i++) { |
3248ff43 DB |
1091 | if (!p_dev->prod_id[i]) |
1092 | continue; | |
9fea84f4 DB |
1093 | hash[i] = crc32(0, p_dev->prod_id[i], |
1094 | strlen(p_dev->prod_id[i])); | |
3248ff43 DB |
1095 | } |
1096 | return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
1097 | "pa%08Xpb%08Xpc%08Xpd%08X\n", | |
1098 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1099 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1100 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1101 | p_dev->func, p_dev->device_no, | |
1102 | hash[0], hash[1], hash[2], hash[3]); | |
1103 | } | |
a5b55778 | 1104 | |
3248ff43 DB |
1105 | static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, |
1106 | struct device_attribute *attr, const char *buf, size_t count) | |
a5b55778 DB |
1107 | { |
1108 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
db1019ca DB |
1109 | |
1110 | if (!count) | |
1111 | return -EINVAL; | |
a5b55778 | 1112 | |
94a819f8 | 1113 | mutex_lock(&p_dev->socket->ops_mutex); |
a5b55778 | 1114 | p_dev->allow_func_id_match = 1; |
94a819f8 | 1115 | mutex_unlock(&p_dev->socket->ops_mutex); |
af461fc1 | 1116 | pcmcia_parse_uevents(p_dev->socket, PCMCIA_UEVENT_REQUERY); |
a5b55778 DB |
1117 | |
1118 | return count; | |
1119 | } | |
1120 | ||
1da177e4 LT |
1121 | static struct device_attribute pcmcia_dev_attrs[] = { |
1122 | __ATTR(function, 0444, func_show, NULL), | |
db1019ca | 1123 | __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state), |
1da177e4 LT |
1124 | __ATTR_RO(func_id), |
1125 | __ATTR_RO(manf_id), | |
1126 | __ATTR_RO(card_id), | |
1127 | __ATTR_RO(prod_id1), | |
1128 | __ATTR_RO(prod_id2), | |
1129 | __ATTR_RO(prod_id3), | |
1130 | __ATTR_RO(prod_id4), | |
3248ff43 | 1131 | __ATTR_RO(modalias), |
a5b55778 | 1132 | __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), |
1da177e4 LT |
1133 | __ATTR_NULL, |
1134 | }; | |
1135 | ||
8e9e793d DB |
1136 | /* PM support, also needed for reset */ |
1137 | ||
9fea84f4 | 1138 | static int pcmcia_dev_suspend(struct device *dev, pm_message_t state) |
8e9e793d DB |
1139 | { |
1140 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1141 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1142 | int ret = 0; |
8e9e793d | 1143 | |
94a819f8 DB |
1144 | mutex_lock(&p_dev->socket->ops_mutex); |
1145 | if (p_dev->suspended) { | |
1146 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1147 | return 0; |
94a819f8 DB |
1148 | } |
1149 | p_dev->suspended = 1; | |
1150 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1151 | |
d50dbec3 | 1152 | dev_dbg(dev, "suspending\n"); |
d9d9ea01 | 1153 | |
8e9e793d DB |
1154 | if (dev->driver) |
1155 | p_drv = to_pcmcia_drv(dev->driver); | |
1156 | ||
e2d40963 DB |
1157 | if (!p_drv) |
1158 | goto out; | |
1159 | ||
1160 | if (p_drv->suspend) { | |
8661bb5b | 1161 | ret = p_drv->suspend(p_dev); |
d9d9ea01 | 1162 | if (ret) { |
ac449d6e DB |
1163 | dev_printk(KERN_ERR, dev, |
1164 | "pcmcia: device %s (driver %s) did " | |
1165 | "not want to go to sleep (%d)\n", | |
1166 | p_dev->devname, p_drv->drv.name, ret); | |
94a819f8 DB |
1167 | mutex_lock(&p_dev->socket->ops_mutex); |
1168 | p_dev->suspended = 0; | |
1169 | mutex_unlock(&p_dev->socket->ops_mutex); | |
f6fbe01a | 1170 | goto out; |
d9d9ea01 | 1171 | } |
8661bb5b | 1172 | } |
8e9e793d | 1173 | |
d9d9ea01 | 1174 | if (p_dev->device_no == p_dev->func) { |
d50dbec3 | 1175 | dev_dbg(dev, "releasing configuration\n"); |
e2d40963 | 1176 | pcmcia_release_configuration(p_dev); |
d9d9ea01 | 1177 | } |
e2d40963 | 1178 | |
f6fbe01a | 1179 | out: |
f6fbe01a | 1180 | return ret; |
8e9e793d DB |
1181 | } |
1182 | ||
1183 | ||
9fea84f4 | 1184 | static int pcmcia_dev_resume(struct device *dev) |
8e9e793d DB |
1185 | { |
1186 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
9fea84f4 | 1187 | struct pcmcia_driver *p_drv = NULL; |
f6fbe01a | 1188 | int ret = 0; |
8e9e793d | 1189 | |
94a819f8 DB |
1190 | mutex_lock(&p_dev->socket->ops_mutex); |
1191 | if (!p_dev->suspended) { | |
1192 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1193 | return 0; |
94a819f8 DB |
1194 | } |
1195 | p_dev->suspended = 0; | |
1196 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1197 | |
d50dbec3 | 1198 | dev_dbg(dev, "resuming\n"); |
d9d9ea01 | 1199 | |
8e9e793d DB |
1200 | if (dev->driver) |
1201 | p_drv = to_pcmcia_drv(dev->driver); | |
1202 | ||
e2d40963 DB |
1203 | if (!p_drv) |
1204 | goto out; | |
1205 | ||
1206 | if (p_dev->device_no == p_dev->func) { | |
d50dbec3 | 1207 | dev_dbg(dev, "requesting configuration\n"); |
e2d40963 DB |
1208 | ret = pcmcia_request_configuration(p_dev, &p_dev->conf); |
1209 | if (ret) | |
1210 | goto out; | |
8661bb5b | 1211 | } |
8e9e793d | 1212 | |
e2d40963 DB |
1213 | if (p_drv->resume) |
1214 | ret = p_drv->resume(p_dev); | |
1215 | ||
f6fbe01a | 1216 | out: |
f6fbe01a | 1217 | return ret; |
8e9e793d DB |
1218 | } |
1219 | ||
1220 | ||
1221 | static int pcmcia_bus_suspend_callback(struct device *dev, void * _data) | |
1222 | { | |
1223 | struct pcmcia_socket *skt = _data; | |
1224 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1225 | ||
3f8df781 | 1226 | if (p_dev->socket != skt || p_dev->suspended) |
8e9e793d DB |
1227 | return 0; |
1228 | ||
3f8df781 | 1229 | return runtime_suspend(dev); |
8e9e793d DB |
1230 | } |
1231 | ||
1232 | static int pcmcia_bus_resume_callback(struct device *dev, void * _data) | |
1233 | { | |
1234 | struct pcmcia_socket *skt = _data; | |
1235 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1236 | ||
3f8df781 | 1237 | if (p_dev->socket != skt || !p_dev->suspended) |
8e9e793d DB |
1238 | return 0; |
1239 | ||
3f8df781 | 1240 | runtime_resume(dev); |
8e9e793d DB |
1241 | |
1242 | return 0; | |
1243 | } | |
1244 | ||
1245 | static int pcmcia_bus_resume(struct pcmcia_socket *skt) | |
1246 | { | |
d50dbec3 | 1247 | dev_dbg(&skt->dev, "resuming socket %d\n", skt->sock); |
8e9e793d DB |
1248 | bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback); |
1249 | return 0; | |
1250 | } | |
1251 | ||
1252 | static int pcmcia_bus_suspend(struct pcmcia_socket *skt) | |
1253 | { | |
d50dbec3 | 1254 | dev_dbg(&skt->dev, "suspending socket %d\n", skt->sock); |
8e9e793d DB |
1255 | if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt, |
1256 | pcmcia_bus_suspend_callback)) { | |
1257 | pcmcia_bus_resume(skt); | |
1258 | return -EIO; | |
1259 | } | |
1260 | return 0; | |
1261 | } | |
1262 | ||
1da177e4 | 1263 | |
1da177e4 LT |
1264 | /*====================================================================== |
1265 | ||
1266 | The card status event handler. | |
9fea84f4 | 1267 | |
1da177e4 LT |
1268 | ======================================================================*/ |
1269 | ||
1da177e4 LT |
1270 | /* Normally, the event is passed to individual drivers after |
1271 | * informing userspace. Only for CS_EVENT_CARD_REMOVAL this | |
1272 | * is inversed to maintain historic compatibility. | |
1273 | */ | |
1274 | ||
1275 | static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) | |
1276 | { | |
dc109497 | 1277 | struct pcmcia_socket *s = pcmcia_get_socket(skt); |
1da177e4 | 1278 | |
1617406a | 1279 | if (!s) { |
ac449d6e DB |
1280 | dev_printk(KERN_ERR, &skt->dev, |
1281 | "PCMCIA obtaining reference to socket " \ | |
1282 | "failed, event 0x%x lost!\n", event); | |
1617406a FM |
1283 | return -ENODEV; |
1284 | } | |
1285 | ||
d50dbec3 | 1286 | dev_dbg(&skt->dev, "ds_event(0x%06x, %d, 0x%p)\n", |
ac449d6e | 1287 | event, priority, skt); |
1da177e4 | 1288 | |
f8cfa618 | 1289 | switch (event) { |
1da177e4 | 1290 | case CS_EVENT_CARD_REMOVAL: |
00ce99ff | 1291 | mutex_lock(&s->ops_mutex); |
b5e43913 | 1292 | s->pcmcia_state.present = 0; |
00ce99ff | 1293 | mutex_unlock(&s->ops_mutex); |
d6ff5a85 | 1294 | pcmcia_card_remove(skt, NULL); |
dc109497 | 1295 | handle_event(skt, event); |
8680c4b3 | 1296 | mutex_lock(&s->ops_mutex); |
180c33ee | 1297 | destroy_cis_cache(s); |
8680c4b3 | 1298 | mutex_unlock(&s->ops_mutex); |
1da177e4 | 1299 | break; |
f8cfa618 | 1300 | |
1da177e4 | 1301 | case CS_EVENT_CARD_INSERTION: |
8680c4b3 | 1302 | mutex_lock(&s->ops_mutex); |
00ce99ff | 1303 | s->pcmcia_state.present = 1; |
180c33ee | 1304 | destroy_cis_cache(s); /* to be on the safe side... */ |
8680c4b3 | 1305 | mutex_unlock(&s->ops_mutex); |
1da177e4 | 1306 | pcmcia_card_add(skt); |
dc109497 | 1307 | handle_event(skt, event); |
1da177e4 LT |
1308 | break; |
1309 | ||
1310 | case CS_EVENT_EJECTION_REQUEST: | |
1da177e4 LT |
1311 | break; |
1312 | ||
8e9e793d | 1313 | case CS_EVENT_PM_RESUME: |
88b060d6 DB |
1314 | if (verify_cis_cache(skt) != 0) { |
1315 | dev_dbg(&skt->dev, "cis mismatch - different card\n"); | |
1316 | /* first, remove the card */ | |
1317 | ds_event(skt, CS_EVENT_CARD_REMOVAL, CS_EVENT_PRI_HIGH); | |
8680c4b3 | 1318 | mutex_lock(&s->ops_mutex); |
88b060d6 DB |
1319 | destroy_cis_cache(skt); |
1320 | kfree(skt->fake_cis); | |
1321 | skt->fake_cis = NULL; | |
8680c4b3 | 1322 | mutex_unlock(&s->ops_mutex); |
88b060d6 DB |
1323 | /* now, add the new card */ |
1324 | ds_event(skt, CS_EVENT_CARD_INSERTION, | |
1325 | CS_EVENT_PRI_LOW); | |
1326 | } | |
1327 | handle_event(skt, event); | |
1328 | break; | |
1329 | ||
1330 | case CS_EVENT_PM_SUSPEND: | |
8e9e793d DB |
1331 | case CS_EVENT_RESET_PHYSICAL: |
1332 | case CS_EVENT_CARD_RESET: | |
1da177e4 | 1333 | default: |
dc109497 | 1334 | handle_event(skt, event); |
1da177e4 LT |
1335 | break; |
1336 | } | |
1337 | ||
dc109497 DB |
1338 | pcmcia_put_socket(s); |
1339 | ||
1da177e4 LT |
1340 | return 0; |
1341 | } /* ds_event */ | |
1342 | ||
1343 | ||
9fea84f4 | 1344 | struct pcmcia_device *pcmcia_dev_present(struct pcmcia_device *_p_dev) |
9940ec36 DB |
1345 | { |
1346 | struct pcmcia_device *p_dev; | |
1347 | struct pcmcia_device *ret = NULL; | |
1348 | ||
1349 | p_dev = pcmcia_get_dev(_p_dev); | |
1350 | if (!p_dev) | |
1351 | return NULL; | |
1352 | ||
00ce99ff | 1353 | mutex_lock(&p_dev->socket->ops_mutex); |
9940ec36 DB |
1354 | if (!p_dev->socket->pcmcia_state.present) |
1355 | goto out; | |
1356 | ||
3d3de32f DB |
1357 | if (p_dev->socket->pcmcia_state.dead) |
1358 | goto out; | |
1359 | ||
9940ec36 DB |
1360 | if (p_dev->_removed) |
1361 | goto out; | |
1362 | ||
1363 | if (p_dev->suspended) | |
1364 | goto out; | |
1365 | ||
1366 | ret = p_dev; | |
1367 | out: | |
00ce99ff | 1368 | mutex_unlock(&p_dev->socket->ops_mutex); |
9940ec36 DB |
1369 | pcmcia_put_dev(p_dev); |
1370 | return ret; | |
1371 | } | |
1372 | EXPORT_SYMBOL(pcmcia_dev_present); | |
1373 | ||
1374 | ||
90c6cdd1 DB |
1375 | static struct pcmcia_callback pcmcia_bus_callback = { |
1376 | .owner = THIS_MODULE, | |
1377 | .event = ds_event, | |
af461fc1 | 1378 | .requery = pcmcia_requery, |
6e7b51a7 | 1379 | .validate = pccard_validate_cis, |
8e9e793d DB |
1380 | .suspend = pcmcia_bus_suspend, |
1381 | .resume = pcmcia_bus_resume, | |
90c6cdd1 DB |
1382 | }; |
1383 | ||
87373318 | 1384 | static int __devinit pcmcia_bus_add_socket(struct device *dev, |
d8539d81 | 1385 | struct class_interface *class_intf) |
1da177e4 | 1386 | { |
87373318 | 1387 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 LT |
1388 | int ret; |
1389 | ||
dc109497 DB |
1390 | socket = pcmcia_get_socket(socket); |
1391 | if (!socket) { | |
ac449d6e DB |
1392 | dev_printk(KERN_ERR, dev, |
1393 | "PCMCIA obtaining reference to socket failed\n"); | |
1da177e4 LT |
1394 | return -ENODEV; |
1395 | } | |
1396 | ||
1da177e4 LT |
1397 | /* |
1398 | * Ugly. But we want to wait for the socket threads to have started up. | |
1399 | * We really should let the drivers themselves drive some of this.. | |
1400 | */ | |
1401 | msleep(250); | |
1402 | ||
6e7b51a7 DB |
1403 | ret = sysfs_create_bin_file(&dev->kobj, &pccard_cis_attr); |
1404 | if (ret) { | |
1405 | dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n"); | |
1406 | pcmcia_put_socket(socket); | |
1407 | return ret; | |
1408 | } | |
1409 | ||
e7a480d2 | 1410 | #ifdef CONFIG_PCMCIA_IOCTL |
dc109497 | 1411 | init_waitqueue_head(&socket->queue); |
e7a480d2 | 1412 | #endif |
dc109497 | 1413 | INIT_LIST_HEAD(&socket->devices_list); |
4796b71f | 1414 | INIT_WORK(&socket->device_add, pcmcia_delayed_add_device); |
dc109497 DB |
1415 | memset(&socket->pcmcia_state, 0, sizeof(u8)); |
1416 | socket->device_count = 0; | |
1da177e4 | 1417 | |
90c6cdd1 | 1418 | ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback); |
1da177e4 | 1419 | if (ret) { |
ac449d6e | 1420 | dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n"); |
dc109497 | 1421 | pcmcia_put_socket(socket); |
9fea84f4 | 1422 | return ret; |
1da177e4 LT |
1423 | } |
1424 | ||
1425 | return 0; | |
1426 | } | |
1427 | ||
87373318 | 1428 | static void pcmcia_bus_remove_socket(struct device *dev, |
d8539d81 | 1429 | struct class_interface *class_intf) |
1da177e4 | 1430 | { |
87373318 | 1431 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 | 1432 | |
dc109497 | 1433 | if (!socket) |
1da177e4 LT |
1434 | return; |
1435 | ||
00ce99ff | 1436 | mutex_lock(&socket->ops_mutex); |
dc109497 | 1437 | socket->pcmcia_state.dead = 1; |
00ce99ff | 1438 | mutex_unlock(&socket->ops_mutex); |
3d3de32f | 1439 | |
1da177e4 LT |
1440 | pccard_register_pcmcia(socket, NULL); |
1441 | ||
dfbc9e9d | 1442 | /* unregister any unbound devices */ |
8e4d9dcb | 1443 | mutex_lock(&socket->skt_mutex); |
dfbc9e9d | 1444 | pcmcia_card_remove(socket, NULL); |
180c33ee | 1445 | release_cis_mem(socket); |
8e4d9dcb | 1446 | mutex_unlock(&socket->skt_mutex); |
dfbc9e9d | 1447 | |
6e7b51a7 DB |
1448 | sysfs_remove_bin_file(&dev->kobj, &pccard_cis_attr); |
1449 | ||
dc109497 | 1450 | pcmcia_put_socket(socket); |
1da177e4 LT |
1451 | |
1452 | return; | |
1453 | } | |
1454 | ||
1455 | ||
1456 | /* the pcmcia_bus_interface is used to handle pcmcia socket devices */ | |
ed49f5d0 | 1457 | static struct class_interface pcmcia_bus_interface __refdata = { |
1da177e4 | 1458 | .class = &pcmcia_socket_class, |
87373318 GKH |
1459 | .add_dev = &pcmcia_bus_add_socket, |
1460 | .remove_dev = &pcmcia_bus_remove_socket, | |
1da177e4 LT |
1461 | }; |
1462 | ||
1463 | ||
e7a480d2 | 1464 | struct bus_type pcmcia_bus_type = { |
1da177e4 | 1465 | .name = "pcmcia", |
312c004d | 1466 | .uevent = pcmcia_bus_uevent, |
1da177e4 LT |
1467 | .match = pcmcia_bus_match, |
1468 | .dev_attrs = pcmcia_dev_attrs, | |
1d0baa3a RK |
1469 | .probe = pcmcia_device_probe, |
1470 | .remove = pcmcia_device_remove, | |
8e9e793d DB |
1471 | .suspend = pcmcia_dev_suspend, |
1472 | .resume = pcmcia_dev_resume, | |
1da177e4 | 1473 | }; |
1da177e4 LT |
1474 | |
1475 | ||
1476 | static int __init init_pcmcia_bus(void) | |
1477 | { | |
ace7d477 RD |
1478 | int ret; |
1479 | ||
ace7d477 RD |
1480 | ret = bus_register(&pcmcia_bus_type); |
1481 | if (ret < 0) { | |
1482 | printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret); | |
1483 | return ret; | |
1484 | } | |
1485 | ret = class_interface_register(&pcmcia_bus_interface); | |
1486 | if (ret < 0) { | |
1487 | printk(KERN_WARNING | |
1488 | "pcmcia: class_interface_register error: %d\n", ret); | |
1489 | bus_unregister(&pcmcia_bus_type); | |
1490 | return ret; | |
1491 | } | |
1da177e4 | 1492 | |
e7a480d2 | 1493 | pcmcia_setup_ioctl(); |
1da177e4 LT |
1494 | |
1495 | return 0; | |
1496 | } | |
9fea84f4 | 1497 | fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that |
1da177e4 LT |
1498 | * pcmcia_socket_class is already registered */ |
1499 | ||
1500 | ||
1501 | static void __exit exit_pcmcia_bus(void) | |
1502 | { | |
e7a480d2 | 1503 | pcmcia_cleanup_ioctl(); |
1da177e4 | 1504 | |
e7a480d2 | 1505 | class_interface_unregister(&pcmcia_bus_interface); |
1da177e4 LT |
1506 | |
1507 | bus_unregister(&pcmcia_bus_type); | |
1508 | } | |
1509 | module_exit(exit_pcmcia_bus); | |
1510 | ||
1511 | ||
1da177e4 | 1512 | MODULE_ALIAS("ds"); |