Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * ds.c -- 16-bit PCMCIA core support | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * The initial developer of the original code is David A. Hinds | |
9 | * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds | |
10 | * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. | |
11 | * | |
12 | * (C) 1999 David A. Hinds | |
7b24e798 | 13 | * (C) 2003 - 2010 Dominik Brodowski |
1da177e4 LT |
14 | */ |
15 | ||
3b659fb8 | 16 | #include <linux/kernel.h> |
1da177e4 | 17 | #include <linux/module.h> |
1da177e4 | 18 | #include <linux/init.h> |
1da177e4 | 19 | #include <linux/errno.h> |
1da177e4 LT |
20 | #include <linux/list.h> |
21 | #include <linux/delay.h> | |
1da177e4 | 22 | #include <linux/workqueue.h> |
840c2ac5 | 23 | #include <linux/crc32.h> |
daa9517d | 24 | #include <linux/firmware.h> |
360b65b9 | 25 | #include <linux/kref.h> |
43d9f7fd | 26 | #include <linux/dma-mapping.h> |
5a0e3ad6 | 27 | #include <linux/slab.h> |
1da177e4 | 28 | |
1da177e4 LT |
29 | #include <pcmcia/cistpl.h> |
30 | #include <pcmcia/ds.h> | |
31 | #include <pcmcia/ss.h> | |
32 | ||
33 | #include "cs_internal.h" | |
34 | ||
35 | /*====================================================================*/ | |
36 | ||
37 | /* Module parameters */ | |
38 | ||
39 | MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>"); | |
40 | MODULE_DESCRIPTION("PCMCIA Driver Services"); | |
41 | MODULE_LICENSE("GPL"); | |
42 | ||
1da177e4 | 43 | |
1da177e4 LT |
44 | /*====================================================================*/ |
45 | ||
23a83bfe DB |
46 | static void pcmcia_check_driver(struct pcmcia_driver *p_drv) |
47 | { | |
e9fb13bf | 48 | const struct pcmcia_device_id *did = p_drv->id_table; |
23a83bfe DB |
49 | unsigned int i; |
50 | u32 hash; | |
51 | ||
f8cfa618 | 52 | if (!p_drv->probe || !p_drv->remove) |
ba5bb6b5 | 53 | printk(KERN_DEBUG "pcmcia: %s lacks a requisite callback " |
2e9b981a | 54 | "function\n", p_drv->name); |
1e212f36 | 55 | |
23a83bfe | 56 | while (did && did->match_flags) { |
9fea84f4 | 57 | for (i = 0; i < 4; i++) { |
23a83bfe DB |
58 | if (!did->prod_id[i]) |
59 | continue; | |
60 | ||
61 | hash = crc32(0, did->prod_id[i], strlen(did->prod_id[i])); | |
62 | if (hash == did->prod_id_hash[i]) | |
63 | continue; | |
64 | ||
65 | printk(KERN_DEBUG "pcmcia: %s: invalid hash for " | |
66 | "product string \"%s\": is 0x%x, should " | |
2e9b981a | 67 | "be 0x%x\n", p_drv->name, did->prod_id[i], |
23a83bfe | 68 | did->prod_id_hash[i], hash); |
5085cb26 DB |
69 | printk(KERN_DEBUG "pcmcia: see " |
70 | "Documentation/pcmcia/devicetable.txt for " | |
71 | "details\n"); | |
23a83bfe DB |
72 | } |
73 | did++; | |
74 | } | |
75 | ||
76 | return; | |
77 | } | |
78 | ||
daa9517d | 79 | |
1da177e4 LT |
80 | /*======================================================================*/ |
81 | ||
1da177e4 | 82 | |
6179b556 BW |
83 | struct pcmcia_dynid { |
84 | struct list_head node; | |
85 | struct pcmcia_device_id id; | |
86 | }; | |
87 | ||
88 | /** | |
89 | * pcmcia_store_new_id - add a new PCMCIA device ID to this driver and re-probe devices | |
90 | * @driver: target device driver | |
91 | * @buf: buffer for scanning device ID data | |
92 | * @count: input size | |
93 | * | |
94 | * Adds a new dynamic PCMCIA device ID to this driver, | |
95 | * and causes the driver to probe for all devices again. | |
96 | */ | |
97 | static ssize_t | |
98 | pcmcia_store_new_id(struct device_driver *driver, const char *buf, size_t count) | |
99 | { | |
100 | struct pcmcia_dynid *dynid; | |
101 | struct pcmcia_driver *pdrv = to_pcmcia_drv(driver); | |
102 | __u16 match_flags, manf_id, card_id; | |
103 | __u8 func_id, function, device_no; | |
104 | __u32 prod_id_hash[4] = {0, 0, 0, 0}; | |
9fea84f4 | 105 | int fields = 0; |
6179b556 BW |
106 | int retval = 0; |
107 | ||
108 | fields = sscanf(buf, "%hx %hx %hx %hhx %hhx %hhx %x %x %x %x", | |
109 | &match_flags, &manf_id, &card_id, &func_id, &function, &device_no, | |
110 | &prod_id_hash[0], &prod_id_hash[1], &prod_id_hash[2], &prod_id_hash[3]); | |
111 | if (fields < 6) | |
112 | return -EINVAL; | |
113 | ||
114 | dynid = kzalloc(sizeof(struct pcmcia_dynid), GFP_KERNEL); | |
115 | if (!dynid) | |
116 | return -ENOMEM; | |
117 | ||
6179b556 BW |
118 | dynid->id.match_flags = match_flags; |
119 | dynid->id.manf_id = manf_id; | |
120 | dynid->id.card_id = card_id; | |
121 | dynid->id.func_id = func_id; | |
122 | dynid->id.function = function; | |
123 | dynid->id.device_no = device_no; | |
124 | memcpy(dynid->id.prod_id_hash, prod_id_hash, sizeof(__u32) * 4); | |
125 | ||
3f565232 | 126 | mutex_lock(&pdrv->dynids.lock); |
b4b3d7bb | 127 | list_add_tail(&dynid->node, &pdrv->dynids.list); |
3f565232 | 128 | mutex_unlock(&pdrv->dynids.lock); |
6179b556 | 129 | |
cef9bc56 | 130 | retval = driver_attach(&pdrv->drv); |
6179b556 BW |
131 | |
132 | if (retval) | |
133 | return retval; | |
134 | return count; | |
135 | } | |
136 | static DRIVER_ATTR(new_id, S_IWUSR, NULL, pcmcia_store_new_id); | |
137 | ||
138 | static void | |
139 | pcmcia_free_dynids(struct pcmcia_driver *drv) | |
140 | { | |
141 | struct pcmcia_dynid *dynid, *n; | |
142 | ||
3f565232 | 143 | mutex_lock(&drv->dynids.lock); |
6179b556 BW |
144 | list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) { |
145 | list_del(&dynid->node); | |
146 | kfree(dynid); | |
147 | } | |
3f565232 | 148 | mutex_unlock(&drv->dynids.lock); |
6179b556 BW |
149 | } |
150 | ||
151 | static int | |
152 | pcmcia_create_newid_file(struct pcmcia_driver *drv) | |
153 | { | |
154 | int error = 0; | |
155 | if (drv->probe != NULL) | |
2344c6de | 156 | error = driver_create_file(&drv->drv, &driver_attr_new_id); |
6179b556 BW |
157 | return error; |
158 | } | |
159 | ||
ed283e9f AS |
160 | static void |
161 | pcmcia_remove_newid_file(struct pcmcia_driver *drv) | |
162 | { | |
163 | driver_remove_file(&drv->drv, &driver_attr_new_id); | |
164 | } | |
6179b556 | 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; | |
2e9b981a | 184 | driver->drv.name = driver->name; |
3f565232 | 185 | mutex_init(&driver->dynids.lock); |
6179b556 | 186 | INIT_LIST_HEAD(&driver->dynids.list); |
1da177e4 | 187 | |
2e9b981a | 188 | pr_debug("registering driver %s\n", driver->name); |
d9d9ea01 | 189 | |
6179b556 BW |
190 | error = driver_register(&driver->drv); |
191 | if (error < 0) | |
192 | return error; | |
193 | ||
194 | error = pcmcia_create_newid_file(driver); | |
195 | if (error) | |
196 | driver_unregister(&driver->drv); | |
197 | ||
198 | return error; | |
1da177e4 LT |
199 | } |
200 | EXPORT_SYMBOL(pcmcia_register_driver); | |
201 | ||
202 | /** | |
203 | * pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core | |
78187865 | 204 | * @driver: the &driver being unregistered |
1da177e4 LT |
205 | */ |
206 | void pcmcia_unregister_driver(struct pcmcia_driver *driver) | |
207 | { | |
2e9b981a | 208 | pr_debug("unregistering driver %s\n", driver->name); |
ed283e9f | 209 | pcmcia_remove_newid_file(driver); |
1da177e4 | 210 | driver_unregister(&driver->drv); |
6179b556 | 211 | pcmcia_free_dynids(driver); |
1da177e4 LT |
212 | } |
213 | EXPORT_SYMBOL(pcmcia_unregister_driver); | |
214 | ||
1da177e4 LT |
215 | |
216 | /* pcmcia_device handling */ | |
217 | ||
5716d415 | 218 | static struct pcmcia_device *pcmcia_get_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
219 | { |
220 | struct device *tmp_dev; | |
221 | tmp_dev = get_device(&p_dev->dev); | |
222 | if (!tmp_dev) | |
223 | return NULL; | |
224 | return to_pcmcia_dev(tmp_dev); | |
225 | } | |
226 | ||
5716d415 | 227 | static void pcmcia_put_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
228 | { |
229 | if (p_dev) | |
230 | put_device(&p_dev->dev); | |
231 | } | |
232 | ||
360b65b9 DB |
233 | static void pcmcia_release_function(struct kref *ref) |
234 | { | |
235 | struct config_t *c = container_of(ref, struct config_t, ref); | |
d50dbec3 | 236 | pr_debug("releasing config_t\n"); |
360b65b9 DB |
237 | kfree(c); |
238 | } | |
239 | ||
1da177e4 LT |
240 | static void pcmcia_release_dev(struct device *dev) |
241 | { | |
242 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
44961a03 | 243 | int i; |
d50dbec3 | 244 | dev_dbg(dev, "releasing device\n"); |
dc109497 | 245 | pcmcia_put_socket(p_dev->socket); |
44961a03 DB |
246 | for (i = 0; i < 4; i++) |
247 | kfree(p_dev->prod_id[i]); | |
bd65a685 | 248 | kfree(p_dev->devname); |
360b65b9 | 249 | kref_put(&p_dev->function_config->ref, pcmcia_release_function); |
1da177e4 LT |
250 | kfree(p_dev); |
251 | } | |
252 | ||
253 | ||
9fea84f4 | 254 | static int pcmcia_device_probe(struct device *dev) |
1da177e4 LT |
255 | { |
256 | struct pcmcia_device *p_dev; | |
257 | struct pcmcia_driver *p_drv; | |
f8cfa618 | 258 | struct pcmcia_socket *s; |
af2b3b50 | 259 | cistpl_config_t cis_config; |
1da177e4 LT |
260 | int ret = 0; |
261 | ||
262 | dev = get_device(dev); | |
263 | if (!dev) | |
264 | return -ENODEV; | |
265 | ||
266 | p_dev = to_pcmcia_dev(dev); | |
267 | p_drv = to_pcmcia_drv(dev->driver); | |
f8cfa618 | 268 | s = p_dev->socket; |
1da177e4 | 269 | |
2e9b981a | 270 | dev_dbg(dev, "trying to bind to %s\n", p_drv->name); |
d9d9ea01 | 271 | |
360b65b9 DB |
272 | if ((!p_drv->probe) || (!p_dev->function_config) || |
273 | (!try_module_get(p_drv->owner))) { | |
1da177e4 LT |
274 | ret = -EINVAL; |
275 | goto put_dev; | |
276 | } | |
277 | ||
af2b3b50 DB |
278 | /* set up some more device information */ |
279 | ret = pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_CONFIG, | |
280 | &cis_config); | |
281 | if (!ret) { | |
7feabb64 DB |
282 | p_dev->config_base = cis_config.base; |
283 | p_dev->config_regs = cis_config.rmask[0]; | |
1cc745d1 DB |
284 | dev_dbg(dev, "base %x, regs %x", p_dev->config_base, |
285 | p_dev->config_regs); | |
af2b3b50 | 286 | } else { |
ac449d6e DB |
287 | dev_printk(KERN_INFO, dev, |
288 | "pcmcia: could not parse base and rmask0 of CIS\n"); | |
7feabb64 DB |
289 | p_dev->config_base = 0; |
290 | p_dev->config_regs = 0; | |
af2b3b50 DB |
291 | } |
292 | ||
f8cfa618 | 293 | ret = p_drv->probe(p_dev); |
d9d9ea01 | 294 | if (ret) { |
d50dbec3 | 295 | dev_dbg(dev, "binding to %s failed with %d\n", |
2e9b981a | 296 | p_drv->name, ret); |
82d56e6d | 297 | goto put_module; |
d9d9ea01 | 298 | } |
2e9b981a | 299 | dev_dbg(dev, "%s bound: Vpp %d.%d, idx %x, IRQ %d", p_drv->name, |
1cc745d1 DB |
300 | p_dev->vpp/10, p_dev->vpp%10, p_dev->config_index, p_dev->irq); |
301 | dev_dbg(dev, "resources: ioport %pR %pR iomem %pR %pR %pR", | |
302 | p_dev->resource[0], p_dev->resource[1], p_dev->resource[2], | |
303 | p_dev->resource[3], p_dev->resource[4]); | |
82d56e6d | 304 | |
00ce99ff | 305 | mutex_lock(&s->ops_mutex); |
ce3f9d71 | 306 | if ((s->pcmcia_pfc) && |
82d56e6d | 307 | (p_dev->socket->device_count == 1) && (p_dev->device_no == 0)) |
aa584ca4 | 308 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY); |
00ce99ff | 309 | mutex_unlock(&s->ops_mutex); |
f8cfa618 | 310 | |
cec5eb7b | 311 | put_module: |
1da177e4 LT |
312 | if (ret) |
313 | module_put(p_drv->owner); | |
cec5eb7b | 314 | put_dev: |
f8cfa618 | 315 | if (ret) |
1da177e4 | 316 | put_device(dev); |
9fea84f4 | 317 | return ret; |
1da177e4 LT |
318 | } |
319 | ||
320 | ||
d6ff5a85 DB |
321 | /* |
322 | * Removes a PCMCIA card from the device tree and socket list. | |
323 | */ | |
324 | static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *leftover) | |
325 | { | |
326 | struct pcmcia_device *p_dev; | |
327 | struct pcmcia_device *tmp; | |
d6ff5a85 | 328 | |
d50dbec3 | 329 | dev_dbg(leftover ? &leftover->dev : &s->dev, |
ac449d6e DB |
330 | "pcmcia_card_remove(%d) %s\n", s->sock, |
331 | leftover ? leftover->devname : ""); | |
d6ff5a85 | 332 | |
00ce99ff | 333 | mutex_lock(&s->ops_mutex); |
d6ff5a85 DB |
334 | if (!leftover) |
335 | s->device_count = 0; | |
336 | else | |
337 | s->device_count = 1; | |
00ce99ff | 338 | mutex_unlock(&s->ops_mutex); |
d6ff5a85 DB |
339 | |
340 | /* unregister all pcmcia_devices registered with this socket, except leftover */ | |
341 | list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) { | |
342 | if (p_dev == leftover) | |
343 | continue; | |
344 | ||
00ce99ff | 345 | mutex_lock(&s->ops_mutex); |
d6ff5a85 | 346 | list_del(&p_dev->socket_device_list); |
00ce99ff | 347 | mutex_unlock(&s->ops_mutex); |
d6ff5a85 | 348 | |
d50dbec3 | 349 | dev_dbg(&p_dev->dev, "unregistering device\n"); |
d6ff5a85 DB |
350 | device_unregister(&p_dev->dev); |
351 | } | |
352 | ||
353 | return; | |
354 | } | |
355 | ||
9fea84f4 | 356 | static int pcmcia_device_remove(struct device *dev) |
1da177e4 LT |
357 | { |
358 | struct pcmcia_device *p_dev; | |
359 | struct pcmcia_driver *p_drv; | |
cc3b4866 | 360 | int i; |
1da177e4 | 361 | |
1da177e4 LT |
362 | p_dev = to_pcmcia_dev(dev); |
363 | p_drv = to_pcmcia_drv(dev->driver); | |
d6ff5a85 | 364 | |
d50dbec3 | 365 | dev_dbg(dev, "removing device\n"); |
d9d9ea01 | 366 | |
d6ff5a85 DB |
367 | /* If we're removing the primary module driving a |
368 | * pseudo multi-function card, we need to unbind | |
369 | * all devices | |
370 | */ | |
ce3f9d71 | 371 | if ((p_dev->socket->pcmcia_pfc) && |
e6e4f397 | 372 | (p_dev->socket->device_count > 0) && |
d6ff5a85 DB |
373 | (p_dev->device_no == 0)) |
374 | pcmcia_card_remove(p_dev->socket, p_dev); | |
375 | ||
376 | /* detach the "instance" */ | |
f3990715 DB |
377 | if (!p_drv) |
378 | return 0; | |
1da177e4 | 379 | |
f3990715 | 380 | if (p_drv->remove) |
9fea84f4 | 381 | p_drv->remove(p_dev); |
cc3b4866 | 382 | |
f3990715 | 383 | /* check for proper unloading */ |
e2d40963 | 384 | if (p_dev->_irq || p_dev->_io || p_dev->_locked) |
ac449d6e DB |
385 | dev_printk(KERN_INFO, dev, |
386 | "pcmcia: driver %s did not release config properly\n", | |
2e9b981a | 387 | p_drv->name); |
cc3b4866 | 388 | |
f3990715 | 389 | for (i = 0; i < MAX_WIN; i++) |
e2d40963 | 390 | if (p_dev->_win & CLIENT_WIN_REQ(i)) |
ac449d6e DB |
391 | dev_printk(KERN_INFO, dev, |
392 | "pcmcia: driver %s did not release window properly\n", | |
2e9b981a | 393 | p_drv->name); |
cc3b4866 | 394 | |
f3990715 DB |
395 | /* references from pcmcia_probe_device */ |
396 | pcmcia_put_dev(p_dev); | |
397 | module_put(p_drv->owner); | |
1da177e4 LT |
398 | |
399 | return 0; | |
400 | } | |
401 | ||
402 | ||
1da177e4 LT |
403 | /* |
404 | * pcmcia_device_query -- determine information about a pcmcia device | |
405 | */ | |
406 | static int pcmcia_device_query(struct pcmcia_device *p_dev) | |
407 | { | |
408 | cistpl_manfid_t manf_id; | |
409 | cistpl_funcid_t func_id; | |
76fa82fb | 410 | cistpl_vers_1_t *vers1; |
1da177e4 LT |
411 | unsigned int i; |
412 | ||
76fa82fb IM |
413 | vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL); |
414 | if (!vers1) | |
415 | return -ENOMEM; | |
416 | ||
84897fc0 | 417 | if (!pccard_read_tuple(p_dev->socket, BIND_FN_ALL, |
1da177e4 | 418 | CISTPL_MANFID, &manf_id)) { |
af461fc1 | 419 | mutex_lock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
420 | p_dev->manf_id = manf_id.manf; |
421 | p_dev->card_id = manf_id.card; | |
422 | p_dev->has_manf_id = 1; | |
423 | p_dev->has_card_id = 1; | |
af461fc1 | 424 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
425 | } |
426 | ||
427 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, | |
428 | CISTPL_FUNCID, &func_id)) { | |
af461fc1 | 429 | mutex_lock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
430 | p_dev->func_id = func_id.func; |
431 | p_dev->has_func_id = 1; | |
af461fc1 | 432 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
433 | } else { |
434 | /* rule of thumb: cards with no FUNCID, but with | |
435 | * common memory device geometry information, are | |
436 | * probably memory cards (from pcmcia-cs) */ | |
76fa82fb IM |
437 | cistpl_device_geo_t *devgeo; |
438 | ||
439 | devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL); | |
440 | if (!devgeo) { | |
441 | kfree(vers1); | |
442 | return -ENOMEM; | |
443 | } | |
1da177e4 | 444 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
76fa82fb | 445 | CISTPL_DEVICE_GEO, devgeo)) { |
d50dbec3 | 446 | dev_dbg(&p_dev->dev, |
ac449d6e DB |
447 | "mem device geometry probably means " |
448 | "FUNCID_MEMORY\n"); | |
af461fc1 | 449 | mutex_lock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
450 | p_dev->func_id = CISTPL_FUNCID_MEMORY; |
451 | p_dev->has_func_id = 1; | |
af461fc1 | 452 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 | 453 | } |
76fa82fb | 454 | kfree(devgeo); |
1da177e4 LT |
455 | } |
456 | ||
84897fc0 | 457 | if (!pccard_read_tuple(p_dev->socket, BIND_FN_ALL, CISTPL_VERS_1, |
76fa82fb | 458 | vers1)) { |
af461fc1 | 459 | mutex_lock(&p_dev->socket->ops_mutex); |
c5e09528 | 460 | for (i = 0; i < min_t(unsigned int, 4, vers1->ns); i++) { |
1da177e4 LT |
461 | char *tmp; |
462 | unsigned int length; | |
44961a03 | 463 | char *new; |
1da177e4 | 464 | |
76fa82fb | 465 | tmp = vers1->str + vers1->ofs[i]; |
1da177e4 LT |
466 | |
467 | length = strlen(tmp) + 1; | |
6e3d4f25 | 468 | if ((length < 2) || (length > 255)) |
1da177e4 LT |
469 | continue; |
470 | ||
44961a03 DB |
471 | new = kmalloc(sizeof(char) * length, GFP_KERNEL); |
472 | if (!new) | |
1da177e4 LT |
473 | continue; |
474 | ||
44961a03 DB |
475 | new = strncpy(new, tmp, length); |
476 | ||
477 | tmp = p_dev->prod_id[i]; | |
478 | p_dev->prod_id[i] = new; | |
479 | kfree(tmp); | |
1da177e4 | 480 | } |
af461fc1 | 481 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
482 | } |
483 | ||
76fa82fb | 484 | kfree(vers1); |
1da177e4 LT |
485 | return 0; |
486 | } | |
487 | ||
488 | ||
5716d415 DB |
489 | static struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, |
490 | unsigned int function) | |
1da177e4 | 491 | { |
360b65b9 | 492 | struct pcmcia_device *p_dev, *tmp_dev; |
44961a03 | 493 | int i; |
1da177e4 | 494 | |
dc109497 | 495 | s = pcmcia_get_socket(s); |
1da177e4 LT |
496 | if (!s) |
497 | return NULL; | |
498 | ||
d50dbec3 | 499 | pr_debug("adding device to %d, function %d\n", s->sock, function); |
d9d9ea01 | 500 | |
8084b372 | 501 | p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL); |
1da177e4 LT |
502 | if (!p_dev) |
503 | goto err_put; | |
1da177e4 | 504 | |
00ce99ff | 505 | mutex_lock(&s->ops_mutex); |
1da177e4 | 506 | p_dev->device_no = (s->device_count++); |
00ce99ff | 507 | mutex_unlock(&s->ops_mutex); |
e6e4f397 | 508 | |
7d7ba8d3 DB |
509 | /* max of 2 PFC devices */ |
510 | if ((p_dev->device_no >= 2) && (function == 0)) | |
511 | goto err_free; | |
512 | ||
513 | /* max of 4 devices overall */ | |
514 | if (p_dev->device_no >= 4) | |
e6e4f397 DB |
515 | goto err_free; |
516 | ||
517 | p_dev->socket = s; | |
1da177e4 LT |
518 | p_dev->func = function; |
519 | ||
520 | p_dev->dev.bus = &pcmcia_bus_type; | |
87373318 | 521 | p_dev->dev.parent = s->dev.parent; |
1da177e4 | 522 | p_dev->dev.release = pcmcia_release_dev; |
43d9f7fd JB |
523 | /* by default don't allow DMA */ |
524 | p_dev->dma_mask = DMA_MASK_NONE; | |
525 | p_dev->dev.dma_mask = &p_dev->dma_mask; | |
25096986 KS |
526 | dev_set_name(&p_dev->dev, "%d.%d", p_dev->socket->sock, p_dev->device_no); |
527 | if (!dev_name(&p_dev->dev)) | |
528 | goto err_free; | |
529 | p_dev->devname = kasprintf(GFP_KERNEL, "pcmcia%s", dev_name(&p_dev->dev)); | |
bd65a685 BG |
530 | if (!p_dev->devname) |
531 | goto err_free; | |
d50dbec3 | 532 | dev_dbg(&p_dev->dev, "devname is %s\n", p_dev->devname); |
1da177e4 | 533 | |
00ce99ff | 534 | mutex_lock(&s->ops_mutex); |
360b65b9 DB |
535 | |
536 | /* | |
537 | * p_dev->function_config must be the same for all card functions. | |
a60f22c4 DB |
538 | * Note that this is serialized by ops_mutex, so that only one |
539 | * such struct will be created. | |
360b65b9 | 540 | */ |
9fea84f4 DB |
541 | list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list) |
542 | if (p_dev->func == tmp_dev->func) { | |
360b65b9 | 543 | p_dev->function_config = tmp_dev->function_config; |
3e879f61 | 544 | p_dev->irq = tmp_dev->irq; |
360b65b9 DB |
545 | kref_get(&p_dev->function_config->ref); |
546 | } | |
547 | ||
548 | /* Add to the list in pcmcia_bus_socket */ | |
6171b88b | 549 | list_add(&p_dev->socket_device_list, &s->devices_list); |
360b65b9 | 550 | |
6f0f38c4 DB |
551 | if (pcmcia_setup_irq(p_dev)) |
552 | dev_warn(&p_dev->dev, | |
553 | "IRQ setup failed -- device might not work\n"); | |
1da177e4 | 554 | |
360b65b9 | 555 | if (!p_dev->function_config) { |
2ce4905e | 556 | config_t *c; |
d50dbec3 | 557 | dev_dbg(&p_dev->dev, "creating config_t\n"); |
2ce4905e DB |
558 | c = kzalloc(sizeof(struct config_t), GFP_KERNEL); |
559 | if (!c) { | |
6f0f38c4 | 560 | mutex_unlock(&s->ops_mutex); |
360b65b9 | 561 | goto err_unreg; |
6f0f38c4 | 562 | } |
2ce4905e DB |
563 | p_dev->function_config = c; |
564 | kref_init(&c->ref); | |
565 | for (i = 0; i < MAX_IO_WIN; i++) { | |
ad0c7be2 | 566 | c->io[i].name = p_dev->devname; |
2ce4905e DB |
567 | c->io[i].flags = IORESOURCE_IO; |
568 | } | |
0ca724d3 | 569 | for (i = 0; i< MAX_WIN; i++) { |
ad0c7be2 | 570 | c->mem[i].name = p_dev->devname; |
0ca724d3 DB |
571 | c->mem[i].flags = IORESOURCE_MEM; |
572 | } | |
360b65b9 | 573 | } |
2ce4905e DB |
574 | for (i = 0; i < MAX_IO_WIN; i++) |
575 | p_dev->resource[i] = &p_dev->function_config->io[i]; | |
0ca724d3 DB |
576 | for (; i < (MAX_IO_WIN + MAX_WIN); i++) |
577 | p_dev->resource[i] = &p_dev->function_config->mem[i-MAX_IO_WIN]; | |
2ce4905e | 578 | |
6f0f38c4 | 579 | mutex_unlock(&s->ops_mutex); |
360b65b9 | 580 | |
ac449d6e | 581 | dev_printk(KERN_NOTICE, &p_dev->dev, |
6f0f38c4 | 582 | "pcmcia: registering new device %s (IRQ: %d)\n", |
eb14120f | 583 | p_dev->devname, p_dev->irq); |
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 | |
1da177e4 LT |
590 | return p_dev; |
591 | ||
360b65b9 | 592 | err_unreg: |
00ce99ff | 593 | mutex_lock(&s->ops_mutex); |
360b65b9 | 594 | list_del(&p_dev->socket_device_list); |
00ce99ff | 595 | mutex_unlock(&s->ops_mutex); |
360b65b9 | 596 | |
1da177e4 | 597 | err_free: |
00ce99ff | 598 | mutex_lock(&s->ops_mutex); |
e6e4f397 | 599 | s->device_count--; |
00ce99ff | 600 | mutex_unlock(&s->ops_mutex); |
e6e4f397 | 601 | |
44961a03 DB |
602 | for (i = 0; i < 4; i++) |
603 | kfree(p_dev->prod_id[i]); | |
bd65a685 | 604 | kfree(p_dev->devname); |
1da177e4 | 605 | kfree(p_dev); |
1da177e4 | 606 | err_put: |
dc109497 | 607 | pcmcia_put_socket(s); |
1da177e4 LT |
608 | |
609 | return NULL; | |
610 | } | |
611 | ||
612 | ||
613 | static int pcmcia_card_add(struct pcmcia_socket *s) | |
614 | { | |
1da177e4 | 615 | cistpl_longlink_mfc_t mfc; |
c5081d5f | 616 | unsigned int no_funcs, i, no_chains; |
cfe5d809 | 617 | int ret = -EAGAIN; |
1da177e4 | 618 | |
cfe5d809 | 619 | mutex_lock(&s->ops_mutex); |
d9d9ea01 | 620 | if (!(s->resource_setup_done)) { |
d50dbec3 | 621 | dev_dbg(&s->dev, |
ac449d6e | 622 | "no resources available, delaying card_add\n"); |
cfe5d809 | 623 | mutex_unlock(&s->ops_mutex); |
1da177e4 | 624 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 625 | } |
1da177e4 | 626 | |
d9d9ea01 | 627 | if (pcmcia_validate_mem(s)) { |
d50dbec3 | 628 | dev_dbg(&s->dev, "validating mem resources failed, " |
d9d9ea01 | 629 | "delaying card_add\n"); |
cfe5d809 | 630 | mutex_unlock(&s->ops_mutex); |
de75914e | 631 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 632 | } |
cfe5d809 | 633 | mutex_unlock(&s->ops_mutex); |
de75914e | 634 | |
84897fc0 | 635 | ret = pccard_validate_cis(s, &no_chains); |
c5081d5f | 636 | if (ret || !no_chains) { |
d50dbec3 | 637 | dev_dbg(&s->dev, "invalid CIS or invalid resources\n"); |
1da177e4 LT |
638 | return -ENODEV; |
639 | } | |
640 | ||
641 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
642 | no_funcs = mfc.nfn; | |
643 | else | |
644 | no_funcs = 1; | |
1d2c9042 | 645 | s->functions = no_funcs; |
1da177e4 | 646 | |
9fea84f4 | 647 | for (i = 0; i < no_funcs; i++) |
dc109497 | 648 | pcmcia_device_add(s, i); |
1da177e4 | 649 | |
9fea84f4 | 650 | return ret; |
1da177e4 LT |
651 | } |
652 | ||
653 | ||
af461fc1 | 654 | static int pcmcia_requery_callback(struct device *dev, void * _data) |
ff1fa9ef | 655 | { |
e2f0b534 | 656 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
d9d9ea01 | 657 | if (!p_dev->dev.driver) { |
d50dbec3 | 658 | dev_dbg(dev, "update device information\n"); |
e2f0b534 | 659 | pcmcia_device_query(p_dev); |
d9d9ea01 | 660 | } |
e2f0b534 DB |
661 | |
662 | return 0; | |
663 | } | |
664 | ||
aa584ca4 | 665 | |
af461fc1 | 666 | static void pcmcia_requery(struct pcmcia_socket *s) |
e2f0b534 | 667 | { |
04de0816 | 668 | int has_pfc; |
4ae1cbf1 | 669 | |
af461fc1 DB |
670 | if (s->functions == 0) { |
671 | pcmcia_card_add(s); | |
672 | return; | |
e2f0b534 DB |
673 | } |
674 | ||
675 | /* some device information might have changed because of a CIS | |
676 | * update or because we can finally read it correctly... so | |
677 | * determine it again, overwriting old values if necessary. */ | |
af461fc1 DB |
678 | bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery_callback); |
679 | ||
680 | /* if the CIS changed, we need to check whether the number of | |
681 | * functions changed. */ | |
682 | if (s->fake_cis) { | |
683 | int old_funcs, new_funcs; | |
684 | cistpl_longlink_mfc_t mfc; | |
685 | ||
686 | /* does this cis override add or remove functions? */ | |
687 | old_funcs = s->functions; | |
688 | ||
689 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, | |
690 | &mfc)) | |
691 | new_funcs = mfc.nfn; | |
692 | else | |
693 | new_funcs = 1; | |
b1095afe DB |
694 | if (old_funcs != new_funcs) { |
695 | /* we need to re-start */ | |
af461fc1 | 696 | pcmcia_card_remove(s, NULL); |
b83156b5 | 697 | s->functions = 0; |
af461fc1 | 698 | pcmcia_card_add(s); |
af461fc1 DB |
699 | } |
700 | } | |
e2f0b534 | 701 | |
aa584ca4 DB |
702 | /* If the PCMCIA device consists of two pseudo devices, |
703 | * call pcmcia_device_add() -- which will fail if both | |
704 | * devices are already registered. */ | |
705 | mutex_lock(&s->ops_mutex); | |
ce3f9d71 | 706 | has_pfc = s->pcmcia_pfc; |
aa584ca4 DB |
707 | mutex_unlock(&s->ops_mutex); |
708 | if (has_pfc) | |
709 | pcmcia_device_add(s, 0); | |
710 | ||
e2f0b534 DB |
711 | /* we re-scan all devices, not just the ones connected to this |
712 | * socket. This does not matter, though. */ | |
af461fc1 DB |
713 | if (bus_rescan_devices(&pcmcia_bus_type)) |
714 | dev_warn(&s->dev, "rescanning the bus failed\n"); | |
ff1fa9ef | 715 | } |
1ad275e3 | 716 | |
af461fc1 | 717 | |
1d2c9042 DB |
718 | #ifdef CONFIG_PCMCIA_LOAD_CIS |
719 | ||
720 | /** | |
721 | * pcmcia_load_firmware - load CIS from userspace if device-provided is broken | |
78187865 RD |
722 | * @dev: the pcmcia device which needs a CIS override |
723 | * @filename: requested filename in /lib/firmware/ | |
1d2c9042 DB |
724 | * |
725 | * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if | |
726 | * the one provided by the card is broken. The firmware files reside in | |
727 | * /lib/firmware/ in userspace. | |
728 | */ | |
729 | static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
730 | { | |
731 | struct pcmcia_socket *s = dev->socket; | |
732 | const struct firmware *fw; | |
1d2c9042 | 733 | int ret = -ENOMEM; |
b1095afe DB |
734 | cistpl_longlink_mfc_t mfc; |
735 | int old_funcs, new_funcs = 1; | |
1d2c9042 DB |
736 | |
737 | if (!filename) | |
738 | return -EINVAL; | |
739 | ||
d50dbec3 | 740 | dev_dbg(&dev->dev, "trying to load CIS file %s\n", filename); |
1d2c9042 | 741 | |
ed62acec | 742 | if (request_firmware(&fw, filename, &dev->dev) == 0) { |
d9d9ea01 DB |
743 | if (fw->size >= CISTPL_MAX_CIS_SIZE) { |
744 | ret = -EINVAL; | |
ac449d6e DB |
745 | dev_printk(KERN_ERR, &dev->dev, |
746 | "pcmcia: CIS override is too big\n"); | |
1d2c9042 | 747 | goto release; |
d9d9ea01 | 748 | } |
1d2c9042 | 749 | |
53efec95 | 750 | if (!pcmcia_replace_cis(s, fw->data, fw->size)) |
1d2c9042 | 751 | ret = 0; |
d9d9ea01 | 752 | else { |
ac449d6e DB |
753 | dev_printk(KERN_ERR, &dev->dev, |
754 | "pcmcia: CIS override failed\n"); | |
d9d9ea01 DB |
755 | goto release; |
756 | } | |
757 | ||
b1095afe DB |
758 | /* we need to re-start if the number of functions changed */ |
759 | old_funcs = s->functions; | |
760 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, | |
761 | &mfc)) | |
762 | new_funcs = mfc.nfn; | |
763 | ||
764 | if (old_funcs != new_funcs) | |
765 | ret = -EBUSY; | |
1d2c9042 DB |
766 | |
767 | /* update information */ | |
768 | pcmcia_device_query(dev); | |
769 | ||
aa584ca4 DB |
770 | /* requery (as number of functions might have changed) */ |
771 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY); | |
1d2c9042 DB |
772 | } |
773 | release: | |
774 | release_firmware(fw); | |
775 | ||
9fea84f4 | 776 | return ret; |
1d2c9042 DB |
777 | } |
778 | ||
779 | #else /* !CONFIG_PCMCIA_LOAD_CIS */ | |
780 | ||
781 | static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
782 | { | |
783 | return -ENODEV; | |
784 | } | |
785 | ||
786 | #endif | |
787 | ||
788 | ||
1ad275e3 | 789 | static inline int pcmcia_devmatch(struct pcmcia_device *dev, |
e9fb13bf | 790 | const struct pcmcia_device_id *did) |
1ad275e3 DB |
791 | { |
792 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) { | |
793 | if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id)) | |
794 | return 0; | |
795 | } | |
796 | ||
797 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) { | |
798 | if ((!dev->has_card_id) || (dev->card_id != did->card_id)) | |
799 | return 0; | |
800 | } | |
801 | ||
802 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) { | |
803 | if (dev->func != did->function) | |
804 | return 0; | |
805 | } | |
806 | ||
807 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) { | |
808 | if (!dev->prod_id[0]) | |
809 | return 0; | |
810 | if (strcmp(did->prod_id[0], dev->prod_id[0])) | |
811 | return 0; | |
812 | } | |
813 | ||
814 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) { | |
815 | if (!dev->prod_id[1]) | |
816 | return 0; | |
817 | if (strcmp(did->prod_id[1], dev->prod_id[1])) | |
818 | return 0; | |
819 | } | |
820 | ||
821 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) { | |
822 | if (!dev->prod_id[2]) | |
823 | return 0; | |
824 | if (strcmp(did->prod_id[2], dev->prod_id[2])) | |
825 | return 0; | |
826 | } | |
827 | ||
828 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) { | |
829 | if (!dev->prod_id[3]) | |
830 | return 0; | |
831 | if (strcmp(did->prod_id[3], dev->prod_id[3])) | |
832 | return 0; | |
833 | } | |
834 | ||
835 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { | |
83bf6f11 | 836 | dev_dbg(&dev->dev, "this is a pseudo-multi-function device\n"); |
aa584ca4 | 837 | mutex_lock(&dev->socket->ops_mutex); |
ce3f9d71 | 838 | dev->socket->pcmcia_pfc = 1; |
aa584ca4 | 839 | mutex_unlock(&dev->socket->ops_mutex); |
83bf6f11 AK |
840 | if (dev->device_no != did->device_no) |
841 | return 0; | |
1ad275e3 DB |
842 | } |
843 | ||
844 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { | |
94a819f8 DB |
845 | int ret; |
846 | ||
1ad275e3 DB |
847 | if ((!dev->has_func_id) || (dev->func_id != did->func_id)) |
848 | return 0; | |
849 | ||
850 | /* if this is a pseudo-multi-function device, | |
851 | * we need explicit matches */ | |
ce3f9d71 | 852 | if (dev->socket->pcmcia_pfc) |
1ad275e3 DB |
853 | return 0; |
854 | if (dev->device_no) | |
855 | return 0; | |
856 | ||
857 | /* also, FUNC_ID matching needs to be activated by userspace | |
858 | * after it has re-checked that there is no possible module | |
859 | * with a prod_id/manf_id/card_id match. | |
860 | */ | |
94a819f8 DB |
861 | mutex_lock(&dev->socket->ops_mutex); |
862 | ret = dev->allow_func_id_match; | |
863 | mutex_unlock(&dev->socket->ops_mutex); | |
864 | ||
865 | if (!ret) { | |
866 | dev_dbg(&dev->dev, | |
867 | "skipping FUNC_ID match until userspace ACK\n"); | |
1ad275e3 | 868 | return 0; |
94a819f8 | 869 | } |
1ad275e3 DB |
870 | } |
871 | ||
ea7b3882 | 872 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { |
d50dbec3 | 873 | dev_dbg(&dev->dev, "device needs a fake CIS\n"); |
daa9517d | 874 | if (!dev->socket->fake_cis) |
b1095afe DB |
875 | if (pcmcia_load_firmware(dev, did->cisfile)) |
876 | return 0; | |
ea7b3882 DB |
877 | } |
878 | ||
f602ff7e DB |
879 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { |
880 | int i; | |
9fea84f4 | 881 | for (i = 0; i < 4; i++) |
f602ff7e DB |
882 | if (dev->prod_id[i]) |
883 | return 0; | |
884 | if (dev->has_manf_id || dev->has_card_id || dev->has_func_id) | |
885 | return 0; | |
886 | } | |
887 | ||
1ad275e3 DB |
888 | return 1; |
889 | } | |
890 | ||
891 | ||
9fea84f4 DB |
892 | static int pcmcia_bus_match(struct device *dev, struct device_driver *drv) |
893 | { | |
894 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
895 | struct pcmcia_driver *p_drv = to_pcmcia_drv(drv); | |
e9fb13bf | 896 | const struct pcmcia_device_id *did = p_drv->id_table; |
6179b556 BW |
897 | struct pcmcia_dynid *dynid; |
898 | ||
899 | /* match dynamic devices first */ | |
3f565232 | 900 | mutex_lock(&p_drv->dynids.lock); |
6179b556 | 901 | list_for_each_entry(dynid, &p_drv->dynids.list, node) { |
d50dbec3 | 902 | dev_dbg(dev, "trying to match to %s\n", drv->name); |
6179b556 | 903 | if (pcmcia_devmatch(p_dev, &dynid->id)) { |
d50dbec3 | 904 | dev_dbg(dev, "matched to %s\n", drv->name); |
3f565232 | 905 | mutex_unlock(&p_drv->dynids.lock); |
6179b556 BW |
906 | return 1; |
907 | } | |
908 | } | |
3f565232 | 909 | mutex_unlock(&p_drv->dynids.lock); |
1da177e4 | 910 | |
1ad275e3 | 911 | while (did && did->match_flags) { |
d50dbec3 | 912 | dev_dbg(dev, "trying to match to %s\n", drv->name); |
d9d9ea01 | 913 | if (pcmcia_devmatch(p_dev, did)) { |
d50dbec3 | 914 | dev_dbg(dev, "matched to %s\n", drv->name); |
1ad275e3 | 915 | return 1; |
d9d9ea01 | 916 | } |
1ad275e3 DB |
917 | did++; |
918 | } | |
919 | ||
1da177e4 LT |
920 | return 0; |
921 | } | |
922 | ||
7eff2e7a | 923 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
924 | { |
925 | struct pcmcia_device *p_dev; | |
7eff2e7a | 926 | int i; |
840c2ac5 DB |
927 | u32 hash[4] = { 0, 0, 0, 0}; |
928 | ||
929 | if (!dev) | |
930 | return -ENODEV; | |
931 | ||
932 | p_dev = to_pcmcia_dev(dev); | |
933 | ||
934 | /* calculate hashes */ | |
9fea84f4 | 935 | for (i = 0; i < 4; i++) { |
840c2ac5 DB |
936 | if (!p_dev->prod_id[i]) |
937 | continue; | |
938 | hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); | |
939 | } | |
940 | ||
7eff2e7a | 941 | if (add_uevent_var(env, "SOCKET_NO=%u", p_dev->socket->sock)) |
840c2ac5 DB |
942 | return -ENOMEM; |
943 | ||
7eff2e7a | 944 | if (add_uevent_var(env, "DEVICE_NO=%02X", p_dev->device_no)) |
840c2ac5 DB |
945 | return -ENOMEM; |
946 | ||
7eff2e7a | 947 | if (add_uevent_var(env, "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" |
312c004d KS |
948 | "pa%08Xpb%08Xpc%08Xpd%08X", |
949 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
950 | p_dev->has_card_id ? p_dev->card_id : 0, | |
951 | p_dev->has_func_id ? p_dev->func_id : 0, | |
952 | p_dev->func, | |
953 | p_dev->device_no, | |
954 | hash[0], | |
955 | hash[1], | |
956 | hash[2], | |
957 | hash[3])) | |
840c2ac5 DB |
958 | return -ENOMEM; |
959 | ||
840c2ac5 DB |
960 | return 0; |
961 | } | |
962 | ||
3f8df781 AS |
963 | /************************ runtime PM support ***************************/ |
964 | ||
965 | static int pcmcia_dev_suspend(struct device *dev, pm_message_t state); | |
966 | static int pcmcia_dev_resume(struct device *dev); | |
967 | ||
968 | static int runtime_suspend(struct device *dev) | |
969 | { | |
970 | int rc; | |
971 | ||
8e9394ce | 972 | device_lock(dev); |
3f8df781 | 973 | rc = pcmcia_dev_suspend(dev, PMSG_SUSPEND); |
8e9394ce | 974 | device_unlock(dev); |
3f8df781 AS |
975 | return rc; |
976 | } | |
977 | ||
933a838a | 978 | static int runtime_resume(struct device *dev) |
3f8df781 AS |
979 | { |
980 | int rc; | |
981 | ||
8e9394ce | 982 | device_lock(dev); |
3f8df781 | 983 | rc = pcmcia_dev_resume(dev); |
8e9394ce | 984 | device_unlock(dev); |
933a838a | 985 | return rc; |
3f8df781 AS |
986 | } |
987 | ||
1da177e4 LT |
988 | /************************ per-device sysfs output ***************************/ |
989 | ||
990 | #define pcmcia_device_attr(field, test, format) \ | |
e404e274 | 991 | static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
992 | { \ |
993 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
9fea84f4 | 994 | return p_dev->test ? sprintf(buf, format, p_dev->field) : -ENODEV; \ |
1da177e4 LT |
995 | } |
996 | ||
997 | #define pcmcia_device_stringattr(name, field) \ | |
e404e274 | 998 | static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
999 | { \ |
1000 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
9fea84f4 | 1001 | return p_dev->field ? sprintf(buf, "%s\n", p_dev->field) : -ENODEV; \ |
1da177e4 LT |
1002 | } |
1003 | ||
1004 | pcmcia_device_attr(func, socket, "0x%02x\n"); | |
1005 | pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); | |
1006 | pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); | |
1007 | pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); | |
1008 | pcmcia_device_stringattr(prod_id1, prod_id[0]); | |
1009 | pcmcia_device_stringattr(prod_id2, prod_id[1]); | |
1010 | pcmcia_device_stringattr(prod_id3, prod_id[2]); | |
1011 | pcmcia_device_stringattr(prod_id4, prod_id[3]); | |
1012 | ||
8f677ea0 DB |
1013 | static ssize_t pcmcia_show_resources(struct device *dev, |
1014 | struct device_attribute *attr, char *buf) | |
1015 | { | |
1016 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1017 | char *str = buf; | |
1018 | int i; | |
1019 | ||
1020 | for (i = 0; i < PCMCIA_NUM_RESOURCES; i++) | |
1021 | str += sprintf(str, "%pr\n", p_dev->resource[i]); | |
1022 | ||
1023 | return str - buf; | |
1024 | } | |
db1019ca DB |
1025 | |
1026 | static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf) | |
1027 | { | |
1028 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1029 | ||
f6fbe01a | 1030 | if (p_dev->suspended) |
db1019ca DB |
1031 | return sprintf(buf, "off\n"); |
1032 | else | |
1033 | return sprintf(buf, "on\n"); | |
1034 | } | |
1035 | ||
1036 | static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr, | |
1037 | const char *buf, size_t count) | |
1038 | { | |
1039 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1040 | int ret = 0; | |
1041 | ||
9fea84f4 DB |
1042 | if (!count) |
1043 | return -EINVAL; | |
db1019ca | 1044 | |
f6fbe01a | 1045 | if ((!p_dev->suspended) && !strncmp(buf, "off", 3)) |
3f8df781 | 1046 | ret = runtime_suspend(dev); |
f6fbe01a | 1047 | else if (p_dev->suspended && !strncmp(buf, "on", 2)) |
933a838a | 1048 | ret = runtime_resume(dev); |
db1019ca DB |
1049 | |
1050 | return ret ? ret : count; | |
1051 | } | |
1052 | ||
1053 | ||
3704511b | 1054 | static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) |
3248ff43 DB |
1055 | { |
1056 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1057 | int i; | |
1058 | u32 hash[4] = { 0, 0, 0, 0}; | |
1059 | ||
1060 | /* calculate hashes */ | |
9fea84f4 | 1061 | for (i = 0; i < 4; i++) { |
3248ff43 DB |
1062 | if (!p_dev->prod_id[i]) |
1063 | continue; | |
9fea84f4 DB |
1064 | hash[i] = crc32(0, p_dev->prod_id[i], |
1065 | strlen(p_dev->prod_id[i])); | |
3248ff43 DB |
1066 | } |
1067 | return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
1068 | "pa%08Xpb%08Xpc%08Xpd%08X\n", | |
1069 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1070 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1071 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1072 | p_dev->func, p_dev->device_no, | |
1073 | hash[0], hash[1], hash[2], hash[3]); | |
1074 | } | |
a5b55778 | 1075 | |
3248ff43 DB |
1076 | static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, |
1077 | struct device_attribute *attr, const char *buf, size_t count) | |
a5b55778 DB |
1078 | { |
1079 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
db1019ca DB |
1080 | |
1081 | if (!count) | |
1082 | return -EINVAL; | |
a5b55778 | 1083 | |
94a819f8 | 1084 | mutex_lock(&p_dev->socket->ops_mutex); |
a5b55778 | 1085 | p_dev->allow_func_id_match = 1; |
94a819f8 | 1086 | mutex_unlock(&p_dev->socket->ops_mutex); |
af461fc1 | 1087 | pcmcia_parse_uevents(p_dev->socket, PCMCIA_UEVENT_REQUERY); |
a5b55778 DB |
1088 | |
1089 | return count; | |
1090 | } | |
1091 | ||
1da177e4 LT |
1092 | static struct device_attribute pcmcia_dev_attrs[] = { |
1093 | __ATTR(function, 0444, func_show, NULL), | |
db1019ca | 1094 | __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state), |
8f677ea0 | 1095 | __ATTR(resources, 0444, pcmcia_show_resources, NULL), |
1da177e4 LT |
1096 | __ATTR_RO(func_id), |
1097 | __ATTR_RO(manf_id), | |
1098 | __ATTR_RO(card_id), | |
1099 | __ATTR_RO(prod_id1), | |
1100 | __ATTR_RO(prod_id2), | |
1101 | __ATTR_RO(prod_id3), | |
1102 | __ATTR_RO(prod_id4), | |
3248ff43 | 1103 | __ATTR_RO(modalias), |
a5b55778 | 1104 | __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), |
1da177e4 LT |
1105 | __ATTR_NULL, |
1106 | }; | |
1107 | ||
8e9e793d DB |
1108 | /* PM support, also needed for reset */ |
1109 | ||
9fea84f4 | 1110 | static int pcmcia_dev_suspend(struct device *dev, pm_message_t state) |
8e9e793d DB |
1111 | { |
1112 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1113 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1114 | int ret = 0; |
8e9e793d | 1115 | |
94a819f8 DB |
1116 | mutex_lock(&p_dev->socket->ops_mutex); |
1117 | if (p_dev->suspended) { | |
1118 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1119 | return 0; |
94a819f8 DB |
1120 | } |
1121 | p_dev->suspended = 1; | |
1122 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1123 | |
d50dbec3 | 1124 | dev_dbg(dev, "suspending\n"); |
d9d9ea01 | 1125 | |
8e9e793d DB |
1126 | if (dev->driver) |
1127 | p_drv = to_pcmcia_drv(dev->driver); | |
1128 | ||
e2d40963 DB |
1129 | if (!p_drv) |
1130 | goto out; | |
1131 | ||
1132 | if (p_drv->suspend) { | |
8661bb5b | 1133 | ret = p_drv->suspend(p_dev); |
d9d9ea01 | 1134 | if (ret) { |
ac449d6e DB |
1135 | dev_printk(KERN_ERR, dev, |
1136 | "pcmcia: device %s (driver %s) did " | |
1137 | "not want to go to sleep (%d)\n", | |
2e9b981a | 1138 | p_dev->devname, p_drv->name, ret); |
94a819f8 DB |
1139 | mutex_lock(&p_dev->socket->ops_mutex); |
1140 | p_dev->suspended = 0; | |
1141 | mutex_unlock(&p_dev->socket->ops_mutex); | |
f6fbe01a | 1142 | goto out; |
d9d9ea01 | 1143 | } |
8661bb5b | 1144 | } |
8e9e793d | 1145 | |
d9d9ea01 | 1146 | if (p_dev->device_no == p_dev->func) { |
d50dbec3 | 1147 | dev_dbg(dev, "releasing configuration\n"); |
e2d40963 | 1148 | pcmcia_release_configuration(p_dev); |
d9d9ea01 | 1149 | } |
e2d40963 | 1150 | |
f6fbe01a | 1151 | out: |
f6fbe01a | 1152 | return ret; |
8e9e793d DB |
1153 | } |
1154 | ||
1155 | ||
9fea84f4 | 1156 | static int pcmcia_dev_resume(struct device *dev) |
8e9e793d DB |
1157 | { |
1158 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
9fea84f4 | 1159 | struct pcmcia_driver *p_drv = NULL; |
f6fbe01a | 1160 | int ret = 0; |
8e9e793d | 1161 | |
94a819f8 DB |
1162 | mutex_lock(&p_dev->socket->ops_mutex); |
1163 | if (!p_dev->suspended) { | |
1164 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1165 | return 0; |
94a819f8 DB |
1166 | } |
1167 | p_dev->suspended = 0; | |
1168 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1169 | |
d50dbec3 | 1170 | dev_dbg(dev, "resuming\n"); |
d9d9ea01 | 1171 | |
8e9e793d DB |
1172 | if (dev->driver) |
1173 | p_drv = to_pcmcia_drv(dev->driver); | |
1174 | ||
e2d40963 DB |
1175 | if (!p_drv) |
1176 | goto out; | |
1177 | ||
1178 | if (p_dev->device_no == p_dev->func) { | |
d50dbec3 | 1179 | dev_dbg(dev, "requesting configuration\n"); |
1ac71e5a | 1180 | ret = pcmcia_enable_device(p_dev); |
e2d40963 DB |
1181 | if (ret) |
1182 | goto out; | |
8661bb5b | 1183 | } |
8e9e793d | 1184 | |
e2d40963 DB |
1185 | if (p_drv->resume) |
1186 | ret = p_drv->resume(p_dev); | |
1187 | ||
f6fbe01a | 1188 | out: |
f6fbe01a | 1189 | return ret; |
8e9e793d DB |
1190 | } |
1191 | ||
1192 | ||
1193 | static int pcmcia_bus_suspend_callback(struct device *dev, void * _data) | |
1194 | { | |
1195 | struct pcmcia_socket *skt = _data; | |
1196 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1197 | ||
3f8df781 | 1198 | if (p_dev->socket != skt || p_dev->suspended) |
8e9e793d DB |
1199 | return 0; |
1200 | ||
3f8df781 | 1201 | return runtime_suspend(dev); |
8e9e793d DB |
1202 | } |
1203 | ||
1204 | static int pcmcia_bus_resume_callback(struct device *dev, void * _data) | |
1205 | { | |
1206 | struct pcmcia_socket *skt = _data; | |
1207 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1208 | ||
3f8df781 | 1209 | if (p_dev->socket != skt || !p_dev->suspended) |
8e9e793d DB |
1210 | return 0; |
1211 | ||
3f8df781 | 1212 | runtime_resume(dev); |
8e9e793d DB |
1213 | |
1214 | return 0; | |
1215 | } | |
1216 | ||
1217 | static int pcmcia_bus_resume(struct pcmcia_socket *skt) | |
1218 | { | |
d50dbec3 | 1219 | dev_dbg(&skt->dev, "resuming socket %d\n", skt->sock); |
8e9e793d DB |
1220 | bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback); |
1221 | return 0; | |
1222 | } | |
1223 | ||
1224 | static int pcmcia_bus_suspend(struct pcmcia_socket *skt) | |
1225 | { | |
d50dbec3 | 1226 | dev_dbg(&skt->dev, "suspending socket %d\n", skt->sock); |
8e9e793d DB |
1227 | if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt, |
1228 | pcmcia_bus_suspend_callback)) { | |
1229 | pcmcia_bus_resume(skt); | |
1230 | return -EIO; | |
1231 | } | |
1232 | return 0; | |
1233 | } | |
1234 | ||
7b24e798 DB |
1235 | static int pcmcia_bus_remove(struct pcmcia_socket *skt) |
1236 | { | |
1237 | atomic_set(&skt->present, 0); | |
1238 | pcmcia_card_remove(skt, NULL); | |
1da177e4 | 1239 | |
7b24e798 DB |
1240 | mutex_lock(&skt->ops_mutex); |
1241 | destroy_cis_cache(skt); | |
1242 | pcmcia_cleanup_irq(skt); | |
1243 | mutex_unlock(&skt->ops_mutex); | |
1da177e4 | 1244 | |
7b24e798 DB |
1245 | return 0; |
1246 | } | |
9fea84f4 | 1247 | |
7b24e798 DB |
1248 | static int pcmcia_bus_add(struct pcmcia_socket *skt) |
1249 | { | |
1250 | atomic_set(&skt->present, 1); | |
1da177e4 | 1251 | |
7b24e798 | 1252 | mutex_lock(&skt->ops_mutex); |
ce3f9d71 | 1253 | skt->pcmcia_pfc = 0; |
7b24e798 DB |
1254 | destroy_cis_cache(skt); /* to be on the safe side... */ |
1255 | mutex_unlock(&skt->ops_mutex); | |
1da177e4 | 1256 | |
7b24e798 | 1257 | pcmcia_card_add(skt); |
1da177e4 | 1258 | |
7b24e798 DB |
1259 | return 0; |
1260 | } | |
1617406a | 1261 | |
7b24e798 DB |
1262 | static int pcmcia_bus_early_resume(struct pcmcia_socket *skt) |
1263 | { | |
025e4ab3 | 1264 | if (!verify_cis_cache(skt)) |
7b24e798 | 1265 | return 0; |
1da177e4 | 1266 | |
7b24e798 | 1267 | dev_dbg(&skt->dev, "cis mismatch - different card\n"); |
f8cfa618 | 1268 | |
7b24e798 DB |
1269 | /* first, remove the card */ |
1270 | pcmcia_bus_remove(skt); | |
88b060d6 | 1271 | |
7b24e798 DB |
1272 | mutex_lock(&skt->ops_mutex); |
1273 | destroy_cis_cache(skt); | |
1274 | kfree(skt->fake_cis); | |
1275 | skt->fake_cis = NULL; | |
1276 | skt->functions = 0; | |
1277 | mutex_unlock(&skt->ops_mutex); | |
1da177e4 | 1278 | |
7b24e798 DB |
1279 | /* now, add the new card */ |
1280 | pcmcia_bus_add(skt); | |
1281 | return 0; | |
1282 | } | |
dc109497 | 1283 | |
1da177e4 | 1284 | |
04de0816 DB |
1285 | /* |
1286 | * NOTE: This is racy. There's no guarantee the card will still be | |
1287 | * physically present, even if the call to this function returns | |
1288 | * non-NULL. Furthermore, the device driver most likely is unbound | |
1289 | * almost immediately, so the timeframe where pcmcia_dev_present | |
1290 | * returns NULL is probably really really small. | |
1291 | */ | |
9fea84f4 | 1292 | struct pcmcia_device *pcmcia_dev_present(struct pcmcia_device *_p_dev) |
9940ec36 DB |
1293 | { |
1294 | struct pcmcia_device *p_dev; | |
1295 | struct pcmcia_device *ret = NULL; | |
1296 | ||
1297 | p_dev = pcmcia_get_dev(_p_dev); | |
1298 | if (!p_dev) | |
1299 | return NULL; | |
1300 | ||
04de0816 DB |
1301 | if (atomic_read(&p_dev->socket->present) != 0) |
1302 | ret = p_dev; | |
9940ec36 | 1303 | |
9940ec36 DB |
1304 | pcmcia_put_dev(p_dev); |
1305 | return ret; | |
1306 | } | |
1307 | EXPORT_SYMBOL(pcmcia_dev_present); | |
1308 | ||
1309 | ||
90c6cdd1 DB |
1310 | static struct pcmcia_callback pcmcia_bus_callback = { |
1311 | .owner = THIS_MODULE, | |
7b24e798 DB |
1312 | .add = pcmcia_bus_add, |
1313 | .remove = pcmcia_bus_remove, | |
af461fc1 | 1314 | .requery = pcmcia_requery, |
6e7b51a7 | 1315 | .validate = pccard_validate_cis, |
8e9e793d | 1316 | .suspend = pcmcia_bus_suspend, |
7b24e798 | 1317 | .early_resume = pcmcia_bus_early_resume, |
8e9e793d | 1318 | .resume = pcmcia_bus_resume, |
90c6cdd1 DB |
1319 | }; |
1320 | ||
87373318 | 1321 | static int __devinit pcmcia_bus_add_socket(struct device *dev, |
d8539d81 | 1322 | struct class_interface *class_intf) |
1da177e4 | 1323 | { |
87373318 | 1324 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 LT |
1325 | int ret; |
1326 | ||
dc109497 DB |
1327 | socket = pcmcia_get_socket(socket); |
1328 | if (!socket) { | |
ac449d6e DB |
1329 | dev_printk(KERN_ERR, dev, |
1330 | "PCMCIA obtaining reference to socket failed\n"); | |
1da177e4 LT |
1331 | return -ENODEV; |
1332 | } | |
1333 | ||
6e7b51a7 DB |
1334 | ret = sysfs_create_bin_file(&dev->kobj, &pccard_cis_attr); |
1335 | if (ret) { | |
1336 | dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n"); | |
1337 | pcmcia_put_socket(socket); | |
1338 | return ret; | |
1339 | } | |
1340 | ||
dc109497 | 1341 | INIT_LIST_HEAD(&socket->devices_list); |
ce3f9d71 | 1342 | socket->pcmcia_pfc = 0; |
dc109497 | 1343 | socket->device_count = 0; |
e4f1ac21 | 1344 | atomic_set(&socket->present, 0); |
1da177e4 | 1345 | |
90c6cdd1 | 1346 | ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback); |
1da177e4 | 1347 | if (ret) { |
ac449d6e | 1348 | dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n"); |
dc109497 | 1349 | pcmcia_put_socket(socket); |
9fea84f4 | 1350 | return ret; |
1da177e4 LT |
1351 | } |
1352 | ||
1353 | return 0; | |
1354 | } | |
1355 | ||
87373318 | 1356 | static void pcmcia_bus_remove_socket(struct device *dev, |
d8539d81 | 1357 | struct class_interface *class_intf) |
1da177e4 | 1358 | { |
87373318 | 1359 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 | 1360 | |
dc109497 | 1361 | if (!socket) |
1da177e4 LT |
1362 | return; |
1363 | ||
1364 | pccard_register_pcmcia(socket, NULL); | |
1365 | ||
dfbc9e9d | 1366 | /* unregister any unbound devices */ |
8e4d9dcb | 1367 | mutex_lock(&socket->skt_mutex); |
dfbc9e9d | 1368 | pcmcia_card_remove(socket, NULL); |
180c33ee | 1369 | release_cis_mem(socket); |
8e4d9dcb | 1370 | mutex_unlock(&socket->skt_mutex); |
dfbc9e9d | 1371 | |
6e7b51a7 DB |
1372 | sysfs_remove_bin_file(&dev->kobj, &pccard_cis_attr); |
1373 | ||
dc109497 | 1374 | pcmcia_put_socket(socket); |
1da177e4 LT |
1375 | |
1376 | return; | |
1377 | } | |
1378 | ||
1379 | ||
1380 | /* the pcmcia_bus_interface is used to handle pcmcia socket devices */ | |
ed49f5d0 | 1381 | static struct class_interface pcmcia_bus_interface __refdata = { |
1da177e4 | 1382 | .class = &pcmcia_socket_class, |
87373318 GKH |
1383 | .add_dev = &pcmcia_bus_add_socket, |
1384 | .remove_dev = &pcmcia_bus_remove_socket, | |
1da177e4 LT |
1385 | }; |
1386 | ||
1387 | ||
e7a480d2 | 1388 | struct bus_type pcmcia_bus_type = { |
1da177e4 | 1389 | .name = "pcmcia", |
312c004d | 1390 | .uevent = pcmcia_bus_uevent, |
1da177e4 LT |
1391 | .match = pcmcia_bus_match, |
1392 | .dev_attrs = pcmcia_dev_attrs, | |
1d0baa3a RK |
1393 | .probe = pcmcia_device_probe, |
1394 | .remove = pcmcia_device_remove, | |
8e9e793d DB |
1395 | .suspend = pcmcia_dev_suspend, |
1396 | .resume = pcmcia_dev_resume, | |
1da177e4 | 1397 | }; |
1da177e4 LT |
1398 | |
1399 | ||
1400 | static int __init init_pcmcia_bus(void) | |
1401 | { | |
ace7d477 RD |
1402 | int ret; |
1403 | ||
ace7d477 RD |
1404 | ret = bus_register(&pcmcia_bus_type); |
1405 | if (ret < 0) { | |
1406 | printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret); | |
1407 | return ret; | |
1408 | } | |
1409 | ret = class_interface_register(&pcmcia_bus_interface); | |
1410 | if (ret < 0) { | |
1411 | printk(KERN_WARNING | |
1412 | "pcmcia: class_interface_register error: %d\n", ret); | |
1413 | bus_unregister(&pcmcia_bus_type); | |
1414 | return ret; | |
1415 | } | |
1da177e4 | 1416 | |
1da177e4 LT |
1417 | return 0; |
1418 | } | |
9fea84f4 | 1419 | fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that |
1da177e4 LT |
1420 | * pcmcia_socket_class is already registered */ |
1421 | ||
1422 | ||
1423 | static void __exit exit_pcmcia_bus(void) | |
1424 | { | |
e7a480d2 | 1425 | class_interface_unregister(&pcmcia_bus_interface); |
1da177e4 LT |
1426 | |
1427 | bus_unregister(&pcmcia_bus_type); | |
1428 | } | |
1429 | module_exit(exit_pcmcia_bus); | |
1430 | ||
1431 | ||
1da177e4 | 1432 | MODULE_ALIAS("ds"); |