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 | ||
160 | ||
1da177e4 LT |
161 | /** |
162 | * pcmcia_register_driver - register a PCMCIA driver with the bus core | |
78187865 | 163 | * @driver: the &driver being registered |
1da177e4 LT |
164 | * |
165 | * Registers a PCMCIA driver with the PCMCIA bus core. | |
166 | */ | |
1da177e4 LT |
167 | int pcmcia_register_driver(struct pcmcia_driver *driver) |
168 | { | |
6179b556 BW |
169 | int error; |
170 | ||
1da177e4 LT |
171 | if (!driver) |
172 | return -EINVAL; | |
173 | ||
23a83bfe DB |
174 | pcmcia_check_driver(driver); |
175 | ||
1da177e4 LT |
176 | /* initialize common fields */ |
177 | driver->drv.bus = &pcmcia_bus_type; | |
178 | driver->drv.owner = driver->owner; | |
2e9b981a | 179 | driver->drv.name = driver->name; |
3f565232 | 180 | mutex_init(&driver->dynids.lock); |
6179b556 | 181 | INIT_LIST_HEAD(&driver->dynids.list); |
1da177e4 | 182 | |
2e9b981a | 183 | pr_debug("registering driver %s\n", driver->name); |
d9d9ea01 | 184 | |
6179b556 BW |
185 | error = driver_register(&driver->drv); |
186 | if (error < 0) | |
187 | return error; | |
188 | ||
189 | error = pcmcia_create_newid_file(driver); | |
190 | if (error) | |
191 | driver_unregister(&driver->drv); | |
192 | ||
193 | return error; | |
1da177e4 LT |
194 | } |
195 | EXPORT_SYMBOL(pcmcia_register_driver); | |
196 | ||
197 | /** | |
198 | * pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core | |
78187865 | 199 | * @driver: the &driver being unregistered |
1da177e4 LT |
200 | */ |
201 | void pcmcia_unregister_driver(struct pcmcia_driver *driver) | |
202 | { | |
2e9b981a | 203 | pr_debug("unregistering driver %s\n", driver->name); |
1da177e4 | 204 | driver_unregister(&driver->drv); |
6179b556 | 205 | pcmcia_free_dynids(driver); |
1da177e4 LT |
206 | } |
207 | EXPORT_SYMBOL(pcmcia_unregister_driver); | |
208 | ||
1da177e4 LT |
209 | |
210 | /* pcmcia_device handling */ | |
211 | ||
5716d415 | 212 | static struct pcmcia_device *pcmcia_get_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
213 | { |
214 | struct device *tmp_dev; | |
215 | tmp_dev = get_device(&p_dev->dev); | |
216 | if (!tmp_dev) | |
217 | return NULL; | |
218 | return to_pcmcia_dev(tmp_dev); | |
219 | } | |
220 | ||
5716d415 | 221 | static void pcmcia_put_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
222 | { |
223 | if (p_dev) | |
224 | put_device(&p_dev->dev); | |
225 | } | |
226 | ||
360b65b9 DB |
227 | static void pcmcia_release_function(struct kref *ref) |
228 | { | |
229 | struct config_t *c = container_of(ref, struct config_t, ref); | |
d50dbec3 | 230 | pr_debug("releasing config_t\n"); |
360b65b9 DB |
231 | kfree(c); |
232 | } | |
233 | ||
1da177e4 LT |
234 | static void pcmcia_release_dev(struct device *dev) |
235 | { | |
236 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
44961a03 | 237 | int i; |
d50dbec3 | 238 | dev_dbg(dev, "releasing device\n"); |
dc109497 | 239 | pcmcia_put_socket(p_dev->socket); |
44961a03 DB |
240 | for (i = 0; i < 4; i++) |
241 | kfree(p_dev->prod_id[i]); | |
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 | ||
247 | ||
9fea84f4 | 248 | static int pcmcia_device_probe(struct device *dev) |
1da177e4 LT |
249 | { |
250 | struct pcmcia_device *p_dev; | |
251 | struct pcmcia_driver *p_drv; | |
f8cfa618 | 252 | struct pcmcia_socket *s; |
af2b3b50 | 253 | cistpl_config_t cis_config; |
1da177e4 LT |
254 | int ret = 0; |
255 | ||
256 | dev = get_device(dev); | |
257 | if (!dev) | |
258 | return -ENODEV; | |
259 | ||
260 | p_dev = to_pcmcia_dev(dev); | |
261 | p_drv = to_pcmcia_drv(dev->driver); | |
f8cfa618 | 262 | s = p_dev->socket; |
1da177e4 | 263 | |
2e9b981a | 264 | dev_dbg(dev, "trying to bind to %s\n", p_drv->name); |
d9d9ea01 | 265 | |
360b65b9 DB |
266 | if ((!p_drv->probe) || (!p_dev->function_config) || |
267 | (!try_module_get(p_drv->owner))) { | |
1da177e4 LT |
268 | ret = -EINVAL; |
269 | goto put_dev; | |
270 | } | |
271 | ||
af2b3b50 DB |
272 | /* set up some more device information */ |
273 | ret = pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_CONFIG, | |
274 | &cis_config); | |
275 | if (!ret) { | |
7feabb64 DB |
276 | p_dev->config_base = cis_config.base; |
277 | p_dev->config_regs = cis_config.rmask[0]; | |
1cc745d1 DB |
278 | dev_dbg(dev, "base %x, regs %x", p_dev->config_base, |
279 | p_dev->config_regs); | |
af2b3b50 | 280 | } else { |
ac449d6e DB |
281 | dev_printk(KERN_INFO, dev, |
282 | "pcmcia: could not parse base and rmask0 of CIS\n"); | |
7feabb64 DB |
283 | p_dev->config_base = 0; |
284 | p_dev->config_regs = 0; | |
af2b3b50 DB |
285 | } |
286 | ||
f8cfa618 | 287 | ret = p_drv->probe(p_dev); |
d9d9ea01 | 288 | if (ret) { |
d50dbec3 | 289 | dev_dbg(dev, "binding to %s failed with %d\n", |
2e9b981a | 290 | p_drv->name, ret); |
82d56e6d | 291 | goto put_module; |
d9d9ea01 | 292 | } |
2e9b981a | 293 | dev_dbg(dev, "%s bound: Vpp %d.%d, idx %x, IRQ %d", p_drv->name, |
1cc745d1 DB |
294 | p_dev->vpp/10, p_dev->vpp%10, p_dev->config_index, p_dev->irq); |
295 | dev_dbg(dev, "resources: ioport %pR %pR iomem %pR %pR %pR", | |
296 | p_dev->resource[0], p_dev->resource[1], p_dev->resource[2], | |
297 | p_dev->resource[3], p_dev->resource[4]); | |
82d56e6d | 298 | |
00ce99ff | 299 | mutex_lock(&s->ops_mutex); |
ce3f9d71 | 300 | if ((s->pcmcia_pfc) && |
82d56e6d | 301 | (p_dev->socket->device_count == 1) && (p_dev->device_no == 0)) |
aa584ca4 | 302 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY); |
00ce99ff | 303 | mutex_unlock(&s->ops_mutex); |
f8cfa618 | 304 | |
cec5eb7b | 305 | put_module: |
1da177e4 LT |
306 | if (ret) |
307 | module_put(p_drv->owner); | |
cec5eb7b | 308 | put_dev: |
f8cfa618 | 309 | if (ret) |
1da177e4 | 310 | put_device(dev); |
9fea84f4 | 311 | return ret; |
1da177e4 LT |
312 | } |
313 | ||
314 | ||
d6ff5a85 DB |
315 | /* |
316 | * Removes a PCMCIA card from the device tree and socket list. | |
317 | */ | |
318 | static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *leftover) | |
319 | { | |
320 | struct pcmcia_device *p_dev; | |
321 | struct pcmcia_device *tmp; | |
d6ff5a85 | 322 | |
d50dbec3 | 323 | dev_dbg(leftover ? &leftover->dev : &s->dev, |
ac449d6e DB |
324 | "pcmcia_card_remove(%d) %s\n", s->sock, |
325 | leftover ? leftover->devname : ""); | |
d6ff5a85 | 326 | |
00ce99ff | 327 | mutex_lock(&s->ops_mutex); |
d6ff5a85 DB |
328 | if (!leftover) |
329 | s->device_count = 0; | |
330 | else | |
331 | s->device_count = 1; | |
00ce99ff | 332 | mutex_unlock(&s->ops_mutex); |
d6ff5a85 DB |
333 | |
334 | /* unregister all pcmcia_devices registered with this socket, except leftover */ | |
335 | list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) { | |
336 | if (p_dev == leftover) | |
337 | continue; | |
338 | ||
00ce99ff | 339 | mutex_lock(&s->ops_mutex); |
d6ff5a85 | 340 | list_del(&p_dev->socket_device_list); |
00ce99ff | 341 | mutex_unlock(&s->ops_mutex); |
d6ff5a85 | 342 | |
d50dbec3 | 343 | dev_dbg(&p_dev->dev, "unregistering device\n"); |
d6ff5a85 DB |
344 | device_unregister(&p_dev->dev); |
345 | } | |
346 | ||
347 | return; | |
348 | } | |
349 | ||
9fea84f4 | 350 | static int pcmcia_device_remove(struct device *dev) |
1da177e4 LT |
351 | { |
352 | struct pcmcia_device *p_dev; | |
353 | struct pcmcia_driver *p_drv; | |
cc3b4866 | 354 | int i; |
1da177e4 | 355 | |
1da177e4 LT |
356 | p_dev = to_pcmcia_dev(dev); |
357 | p_drv = to_pcmcia_drv(dev->driver); | |
d6ff5a85 | 358 | |
d50dbec3 | 359 | dev_dbg(dev, "removing device\n"); |
d9d9ea01 | 360 | |
d6ff5a85 DB |
361 | /* If we're removing the primary module driving a |
362 | * pseudo multi-function card, we need to unbind | |
363 | * all devices | |
364 | */ | |
ce3f9d71 | 365 | if ((p_dev->socket->pcmcia_pfc) && |
e6e4f397 | 366 | (p_dev->socket->device_count > 0) && |
d6ff5a85 DB |
367 | (p_dev->device_no == 0)) |
368 | pcmcia_card_remove(p_dev->socket, p_dev); | |
369 | ||
370 | /* detach the "instance" */ | |
f3990715 DB |
371 | if (!p_drv) |
372 | return 0; | |
1da177e4 | 373 | |
f3990715 | 374 | if (p_drv->remove) |
9fea84f4 | 375 | p_drv->remove(p_dev); |
cc3b4866 | 376 | |
f3990715 | 377 | /* check for proper unloading */ |
e2d40963 | 378 | if (p_dev->_irq || p_dev->_io || p_dev->_locked) |
ac449d6e DB |
379 | dev_printk(KERN_INFO, dev, |
380 | "pcmcia: driver %s did not release config properly\n", | |
2e9b981a | 381 | p_drv->name); |
cc3b4866 | 382 | |
f3990715 | 383 | for (i = 0; i < MAX_WIN; i++) |
e2d40963 | 384 | if (p_dev->_win & CLIENT_WIN_REQ(i)) |
ac449d6e DB |
385 | dev_printk(KERN_INFO, dev, |
386 | "pcmcia: driver %s did not release window properly\n", | |
2e9b981a | 387 | p_drv->name); |
cc3b4866 | 388 | |
f3990715 DB |
389 | /* references from pcmcia_probe_device */ |
390 | pcmcia_put_dev(p_dev); | |
391 | module_put(p_drv->owner); | |
1da177e4 LT |
392 | |
393 | return 0; | |
394 | } | |
395 | ||
396 | ||
1da177e4 LT |
397 | /* |
398 | * pcmcia_device_query -- determine information about a pcmcia device | |
399 | */ | |
400 | static int pcmcia_device_query(struct pcmcia_device *p_dev) | |
401 | { | |
402 | cistpl_manfid_t manf_id; | |
403 | cistpl_funcid_t func_id; | |
76fa82fb | 404 | cistpl_vers_1_t *vers1; |
1da177e4 LT |
405 | unsigned int i; |
406 | ||
76fa82fb IM |
407 | vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL); |
408 | if (!vers1) | |
409 | return -ENOMEM; | |
410 | ||
84897fc0 | 411 | if (!pccard_read_tuple(p_dev->socket, BIND_FN_ALL, |
1da177e4 | 412 | CISTPL_MANFID, &manf_id)) { |
af461fc1 | 413 | mutex_lock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
414 | p_dev->manf_id = manf_id.manf; |
415 | p_dev->card_id = manf_id.card; | |
416 | p_dev->has_manf_id = 1; | |
417 | p_dev->has_card_id = 1; | |
af461fc1 | 418 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
419 | } |
420 | ||
421 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, | |
422 | CISTPL_FUNCID, &func_id)) { | |
af461fc1 | 423 | mutex_lock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
424 | p_dev->func_id = func_id.func; |
425 | p_dev->has_func_id = 1; | |
af461fc1 | 426 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
427 | } else { |
428 | /* rule of thumb: cards with no FUNCID, but with | |
429 | * common memory device geometry information, are | |
430 | * probably memory cards (from pcmcia-cs) */ | |
76fa82fb IM |
431 | cistpl_device_geo_t *devgeo; |
432 | ||
433 | devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL); | |
434 | if (!devgeo) { | |
435 | kfree(vers1); | |
436 | return -ENOMEM; | |
437 | } | |
1da177e4 | 438 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
76fa82fb | 439 | CISTPL_DEVICE_GEO, devgeo)) { |
d50dbec3 | 440 | dev_dbg(&p_dev->dev, |
ac449d6e DB |
441 | "mem device geometry probably means " |
442 | "FUNCID_MEMORY\n"); | |
af461fc1 | 443 | mutex_lock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
444 | p_dev->func_id = CISTPL_FUNCID_MEMORY; |
445 | p_dev->has_func_id = 1; | |
af461fc1 | 446 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 | 447 | } |
76fa82fb | 448 | kfree(devgeo); |
1da177e4 LT |
449 | } |
450 | ||
84897fc0 | 451 | if (!pccard_read_tuple(p_dev->socket, BIND_FN_ALL, CISTPL_VERS_1, |
76fa82fb | 452 | vers1)) { |
af461fc1 | 453 | mutex_lock(&p_dev->socket->ops_mutex); |
c5e09528 | 454 | for (i = 0; i < min_t(unsigned int, 4, vers1->ns); i++) { |
1da177e4 LT |
455 | char *tmp; |
456 | unsigned int length; | |
44961a03 | 457 | char *new; |
1da177e4 | 458 | |
76fa82fb | 459 | tmp = vers1->str + vers1->ofs[i]; |
1da177e4 LT |
460 | |
461 | length = strlen(tmp) + 1; | |
6e3d4f25 | 462 | if ((length < 2) || (length > 255)) |
1da177e4 LT |
463 | continue; |
464 | ||
44961a03 DB |
465 | new = kmalloc(sizeof(char) * length, GFP_KERNEL); |
466 | if (!new) | |
1da177e4 LT |
467 | continue; |
468 | ||
44961a03 DB |
469 | new = strncpy(new, tmp, length); |
470 | ||
471 | tmp = p_dev->prod_id[i]; | |
472 | p_dev->prod_id[i] = new; | |
473 | kfree(tmp); | |
1da177e4 | 474 | } |
af461fc1 | 475 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
476 | } |
477 | ||
76fa82fb | 478 | kfree(vers1); |
1da177e4 LT |
479 | return 0; |
480 | } | |
481 | ||
482 | ||
5716d415 DB |
483 | static struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, |
484 | unsigned int function) | |
1da177e4 | 485 | { |
360b65b9 | 486 | struct pcmcia_device *p_dev, *tmp_dev; |
44961a03 | 487 | int i; |
1da177e4 | 488 | |
dc109497 | 489 | s = pcmcia_get_socket(s); |
1da177e4 LT |
490 | if (!s) |
491 | return NULL; | |
492 | ||
d50dbec3 | 493 | pr_debug("adding device to %d, function %d\n", s->sock, function); |
d9d9ea01 | 494 | |
8084b372 | 495 | p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL); |
1da177e4 LT |
496 | if (!p_dev) |
497 | goto err_put; | |
1da177e4 | 498 | |
00ce99ff | 499 | mutex_lock(&s->ops_mutex); |
1da177e4 | 500 | p_dev->device_no = (s->device_count++); |
00ce99ff | 501 | mutex_unlock(&s->ops_mutex); |
e6e4f397 | 502 | |
7d7ba8d3 DB |
503 | /* max of 2 PFC devices */ |
504 | if ((p_dev->device_no >= 2) && (function == 0)) | |
505 | goto err_free; | |
506 | ||
507 | /* max of 4 devices overall */ | |
508 | if (p_dev->device_no >= 4) | |
e6e4f397 DB |
509 | goto err_free; |
510 | ||
511 | p_dev->socket = s; | |
1da177e4 LT |
512 | p_dev->func = function; |
513 | ||
514 | p_dev->dev.bus = &pcmcia_bus_type; | |
87373318 | 515 | p_dev->dev.parent = s->dev.parent; |
1da177e4 | 516 | p_dev->dev.release = pcmcia_release_dev; |
43d9f7fd JB |
517 | /* by default don't allow DMA */ |
518 | p_dev->dma_mask = DMA_MASK_NONE; | |
519 | p_dev->dev.dma_mask = &p_dev->dma_mask; | |
25096986 KS |
520 | dev_set_name(&p_dev->dev, "%d.%d", p_dev->socket->sock, p_dev->device_no); |
521 | if (!dev_name(&p_dev->dev)) | |
522 | goto err_free; | |
523 | p_dev->devname = kasprintf(GFP_KERNEL, "pcmcia%s", dev_name(&p_dev->dev)); | |
bd65a685 BG |
524 | if (!p_dev->devname) |
525 | goto err_free; | |
d50dbec3 | 526 | dev_dbg(&p_dev->dev, "devname is %s\n", p_dev->devname); |
1da177e4 | 527 | |
00ce99ff | 528 | mutex_lock(&s->ops_mutex); |
360b65b9 DB |
529 | |
530 | /* | |
531 | * p_dev->function_config must be the same for all card functions. | |
a60f22c4 DB |
532 | * Note that this is serialized by ops_mutex, so that only one |
533 | * such struct will be created. | |
360b65b9 | 534 | */ |
9fea84f4 DB |
535 | list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list) |
536 | if (p_dev->func == tmp_dev->func) { | |
360b65b9 | 537 | p_dev->function_config = tmp_dev->function_config; |
3e879f61 | 538 | p_dev->irq = tmp_dev->irq; |
360b65b9 DB |
539 | kref_get(&p_dev->function_config->ref); |
540 | } | |
541 | ||
542 | /* Add to the list in pcmcia_bus_socket */ | |
6171b88b | 543 | list_add(&p_dev->socket_device_list, &s->devices_list); |
360b65b9 | 544 | |
6f0f38c4 DB |
545 | if (pcmcia_setup_irq(p_dev)) |
546 | dev_warn(&p_dev->dev, | |
547 | "IRQ setup failed -- device might not work\n"); | |
1da177e4 | 548 | |
360b65b9 | 549 | if (!p_dev->function_config) { |
2ce4905e | 550 | config_t *c; |
d50dbec3 | 551 | dev_dbg(&p_dev->dev, "creating config_t\n"); |
2ce4905e DB |
552 | c = kzalloc(sizeof(struct config_t), GFP_KERNEL); |
553 | if (!c) { | |
6f0f38c4 | 554 | mutex_unlock(&s->ops_mutex); |
360b65b9 | 555 | goto err_unreg; |
6f0f38c4 | 556 | } |
2ce4905e DB |
557 | p_dev->function_config = c; |
558 | kref_init(&c->ref); | |
559 | for (i = 0; i < MAX_IO_WIN; i++) { | |
ad0c7be2 | 560 | c->io[i].name = p_dev->devname; |
2ce4905e DB |
561 | c->io[i].flags = IORESOURCE_IO; |
562 | } | |
0ca724d3 | 563 | for (i = 0; i< MAX_WIN; i++) { |
ad0c7be2 | 564 | c->mem[i].name = p_dev->devname; |
0ca724d3 DB |
565 | c->mem[i].flags = IORESOURCE_MEM; |
566 | } | |
360b65b9 | 567 | } |
2ce4905e DB |
568 | for (i = 0; i < MAX_IO_WIN; i++) |
569 | p_dev->resource[i] = &p_dev->function_config->io[i]; | |
0ca724d3 DB |
570 | for (; i < (MAX_IO_WIN + MAX_WIN); i++) |
571 | p_dev->resource[i] = &p_dev->function_config->mem[i-MAX_IO_WIN]; | |
2ce4905e | 572 | |
6f0f38c4 | 573 | mutex_unlock(&s->ops_mutex); |
360b65b9 | 574 | |
ac449d6e | 575 | dev_printk(KERN_NOTICE, &p_dev->dev, |
6f0f38c4 | 576 | "pcmcia: registering new device %s (IRQ: %d)\n", |
eb14120f | 577 | p_dev->devname, p_dev->irq); |
807277cb | 578 | |
1ad275e3 DB |
579 | pcmcia_device_query(p_dev); |
580 | ||
360b65b9 DB |
581 | if (device_register(&p_dev->dev)) |
582 | goto err_unreg; | |
1da177e4 | 583 | |
1da177e4 LT |
584 | return p_dev; |
585 | ||
360b65b9 | 586 | err_unreg: |
00ce99ff | 587 | mutex_lock(&s->ops_mutex); |
360b65b9 | 588 | list_del(&p_dev->socket_device_list); |
00ce99ff | 589 | mutex_unlock(&s->ops_mutex); |
360b65b9 | 590 | |
1da177e4 | 591 | err_free: |
00ce99ff | 592 | mutex_lock(&s->ops_mutex); |
e6e4f397 | 593 | s->device_count--; |
00ce99ff | 594 | mutex_unlock(&s->ops_mutex); |
e6e4f397 | 595 | |
44961a03 DB |
596 | for (i = 0; i < 4; i++) |
597 | kfree(p_dev->prod_id[i]); | |
bd65a685 | 598 | kfree(p_dev->devname); |
1da177e4 | 599 | kfree(p_dev); |
1da177e4 | 600 | err_put: |
dc109497 | 601 | pcmcia_put_socket(s); |
1da177e4 LT |
602 | |
603 | return NULL; | |
604 | } | |
605 | ||
606 | ||
607 | static int pcmcia_card_add(struct pcmcia_socket *s) | |
608 | { | |
1da177e4 | 609 | cistpl_longlink_mfc_t mfc; |
c5081d5f | 610 | unsigned int no_funcs, i, no_chains; |
cfe5d809 | 611 | int ret = -EAGAIN; |
1da177e4 | 612 | |
cfe5d809 | 613 | mutex_lock(&s->ops_mutex); |
d9d9ea01 | 614 | if (!(s->resource_setup_done)) { |
d50dbec3 | 615 | dev_dbg(&s->dev, |
ac449d6e | 616 | "no resources available, delaying card_add\n"); |
cfe5d809 | 617 | mutex_unlock(&s->ops_mutex); |
1da177e4 | 618 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 619 | } |
1da177e4 | 620 | |
d9d9ea01 | 621 | if (pcmcia_validate_mem(s)) { |
d50dbec3 | 622 | dev_dbg(&s->dev, "validating mem resources failed, " |
d9d9ea01 | 623 | "delaying card_add\n"); |
cfe5d809 | 624 | mutex_unlock(&s->ops_mutex); |
de75914e | 625 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 626 | } |
cfe5d809 | 627 | mutex_unlock(&s->ops_mutex); |
de75914e | 628 | |
84897fc0 | 629 | ret = pccard_validate_cis(s, &no_chains); |
c5081d5f | 630 | if (ret || !no_chains) { |
d50dbec3 | 631 | dev_dbg(&s->dev, "invalid CIS or invalid resources\n"); |
1da177e4 LT |
632 | return -ENODEV; |
633 | } | |
634 | ||
635 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
636 | no_funcs = mfc.nfn; | |
637 | else | |
638 | no_funcs = 1; | |
1d2c9042 | 639 | s->functions = no_funcs; |
1da177e4 | 640 | |
9fea84f4 | 641 | for (i = 0; i < no_funcs; i++) |
dc109497 | 642 | pcmcia_device_add(s, i); |
1da177e4 | 643 | |
9fea84f4 | 644 | return ret; |
1da177e4 LT |
645 | } |
646 | ||
647 | ||
af461fc1 | 648 | static int pcmcia_requery_callback(struct device *dev, void * _data) |
ff1fa9ef | 649 | { |
e2f0b534 | 650 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
d9d9ea01 | 651 | if (!p_dev->dev.driver) { |
d50dbec3 | 652 | dev_dbg(dev, "update device information\n"); |
e2f0b534 | 653 | pcmcia_device_query(p_dev); |
d9d9ea01 | 654 | } |
e2f0b534 DB |
655 | |
656 | return 0; | |
657 | } | |
658 | ||
aa584ca4 | 659 | |
af461fc1 | 660 | static void pcmcia_requery(struct pcmcia_socket *s) |
e2f0b534 | 661 | { |
04de0816 | 662 | int has_pfc; |
4ae1cbf1 | 663 | |
af461fc1 DB |
664 | if (s->functions == 0) { |
665 | pcmcia_card_add(s); | |
666 | return; | |
e2f0b534 DB |
667 | } |
668 | ||
669 | /* some device information might have changed because of a CIS | |
670 | * update or because we can finally read it correctly... so | |
671 | * determine it again, overwriting old values if necessary. */ | |
af461fc1 DB |
672 | bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery_callback); |
673 | ||
674 | /* if the CIS changed, we need to check whether the number of | |
675 | * functions changed. */ | |
676 | if (s->fake_cis) { | |
677 | int old_funcs, new_funcs; | |
678 | cistpl_longlink_mfc_t mfc; | |
679 | ||
680 | /* does this cis override add or remove functions? */ | |
681 | old_funcs = s->functions; | |
682 | ||
683 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, | |
684 | &mfc)) | |
685 | new_funcs = mfc.nfn; | |
686 | else | |
687 | new_funcs = 1; | |
b1095afe DB |
688 | if (old_funcs != new_funcs) { |
689 | /* we need to re-start */ | |
af461fc1 | 690 | pcmcia_card_remove(s, NULL); |
b83156b5 | 691 | s->functions = 0; |
af461fc1 | 692 | pcmcia_card_add(s); |
af461fc1 DB |
693 | } |
694 | } | |
e2f0b534 | 695 | |
aa584ca4 DB |
696 | /* If the PCMCIA device consists of two pseudo devices, |
697 | * call pcmcia_device_add() -- which will fail if both | |
698 | * devices are already registered. */ | |
699 | mutex_lock(&s->ops_mutex); | |
ce3f9d71 | 700 | has_pfc = s->pcmcia_pfc; |
aa584ca4 DB |
701 | mutex_unlock(&s->ops_mutex); |
702 | if (has_pfc) | |
703 | pcmcia_device_add(s, 0); | |
704 | ||
e2f0b534 DB |
705 | /* we re-scan all devices, not just the ones connected to this |
706 | * socket. This does not matter, though. */ | |
af461fc1 DB |
707 | if (bus_rescan_devices(&pcmcia_bus_type)) |
708 | dev_warn(&s->dev, "rescanning the bus failed\n"); | |
ff1fa9ef | 709 | } |
1ad275e3 | 710 | |
af461fc1 | 711 | |
1d2c9042 DB |
712 | #ifdef CONFIG_PCMCIA_LOAD_CIS |
713 | ||
714 | /** | |
715 | * pcmcia_load_firmware - load CIS from userspace if device-provided is broken | |
78187865 RD |
716 | * @dev: the pcmcia device which needs a CIS override |
717 | * @filename: requested filename in /lib/firmware/ | |
1d2c9042 DB |
718 | * |
719 | * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if | |
720 | * the one provided by the card is broken. The firmware files reside in | |
721 | * /lib/firmware/ in userspace. | |
722 | */ | |
723 | static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
724 | { | |
725 | struct pcmcia_socket *s = dev->socket; | |
726 | const struct firmware *fw; | |
1d2c9042 | 727 | int ret = -ENOMEM; |
b1095afe DB |
728 | cistpl_longlink_mfc_t mfc; |
729 | int old_funcs, new_funcs = 1; | |
1d2c9042 DB |
730 | |
731 | if (!filename) | |
732 | return -EINVAL; | |
733 | ||
d50dbec3 | 734 | dev_dbg(&dev->dev, "trying to load CIS file %s\n", filename); |
1d2c9042 | 735 | |
ed62acec | 736 | if (request_firmware(&fw, filename, &dev->dev) == 0) { |
d9d9ea01 DB |
737 | if (fw->size >= CISTPL_MAX_CIS_SIZE) { |
738 | ret = -EINVAL; | |
ac449d6e DB |
739 | dev_printk(KERN_ERR, &dev->dev, |
740 | "pcmcia: CIS override is too big\n"); | |
1d2c9042 | 741 | goto release; |
d9d9ea01 | 742 | } |
1d2c9042 | 743 | |
53efec95 | 744 | if (!pcmcia_replace_cis(s, fw->data, fw->size)) |
1d2c9042 | 745 | ret = 0; |
d9d9ea01 | 746 | else { |
ac449d6e DB |
747 | dev_printk(KERN_ERR, &dev->dev, |
748 | "pcmcia: CIS override failed\n"); | |
d9d9ea01 DB |
749 | goto release; |
750 | } | |
751 | ||
b1095afe DB |
752 | /* we need to re-start if the number of functions changed */ |
753 | old_funcs = s->functions; | |
754 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, | |
755 | &mfc)) | |
756 | new_funcs = mfc.nfn; | |
757 | ||
758 | if (old_funcs != new_funcs) | |
759 | ret = -EBUSY; | |
1d2c9042 DB |
760 | |
761 | /* update information */ | |
762 | pcmcia_device_query(dev); | |
763 | ||
aa584ca4 DB |
764 | /* requery (as number of functions might have changed) */ |
765 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY); | |
1d2c9042 DB |
766 | } |
767 | release: | |
768 | release_firmware(fw); | |
769 | ||
9fea84f4 | 770 | return ret; |
1d2c9042 DB |
771 | } |
772 | ||
773 | #else /* !CONFIG_PCMCIA_LOAD_CIS */ | |
774 | ||
775 | static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
776 | { | |
777 | return -ENODEV; | |
778 | } | |
779 | ||
780 | #endif | |
781 | ||
782 | ||
1ad275e3 | 783 | static inline int pcmcia_devmatch(struct pcmcia_device *dev, |
e9fb13bf | 784 | const struct pcmcia_device_id *did) |
1ad275e3 DB |
785 | { |
786 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) { | |
787 | if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id)) | |
788 | return 0; | |
789 | } | |
790 | ||
791 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) { | |
792 | if ((!dev->has_card_id) || (dev->card_id != did->card_id)) | |
793 | return 0; | |
794 | } | |
795 | ||
796 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) { | |
797 | if (dev->func != did->function) | |
798 | return 0; | |
799 | } | |
800 | ||
801 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) { | |
802 | if (!dev->prod_id[0]) | |
803 | return 0; | |
804 | if (strcmp(did->prod_id[0], dev->prod_id[0])) | |
805 | return 0; | |
806 | } | |
807 | ||
808 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) { | |
809 | if (!dev->prod_id[1]) | |
810 | return 0; | |
811 | if (strcmp(did->prod_id[1], dev->prod_id[1])) | |
812 | return 0; | |
813 | } | |
814 | ||
815 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) { | |
816 | if (!dev->prod_id[2]) | |
817 | return 0; | |
818 | if (strcmp(did->prod_id[2], dev->prod_id[2])) | |
819 | return 0; | |
820 | } | |
821 | ||
822 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) { | |
823 | if (!dev->prod_id[3]) | |
824 | return 0; | |
825 | if (strcmp(did->prod_id[3], dev->prod_id[3])) | |
826 | return 0; | |
827 | } | |
828 | ||
829 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { | |
83bf6f11 | 830 | dev_dbg(&dev->dev, "this is a pseudo-multi-function device\n"); |
aa584ca4 | 831 | mutex_lock(&dev->socket->ops_mutex); |
ce3f9d71 | 832 | dev->socket->pcmcia_pfc = 1; |
aa584ca4 | 833 | mutex_unlock(&dev->socket->ops_mutex); |
83bf6f11 AK |
834 | if (dev->device_no != did->device_no) |
835 | return 0; | |
1ad275e3 DB |
836 | } |
837 | ||
838 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { | |
94a819f8 DB |
839 | int ret; |
840 | ||
1ad275e3 DB |
841 | if ((!dev->has_func_id) || (dev->func_id != did->func_id)) |
842 | return 0; | |
843 | ||
844 | /* if this is a pseudo-multi-function device, | |
845 | * we need explicit matches */ | |
ce3f9d71 | 846 | if (dev->socket->pcmcia_pfc) |
1ad275e3 DB |
847 | return 0; |
848 | if (dev->device_no) | |
849 | return 0; | |
850 | ||
851 | /* also, FUNC_ID matching needs to be activated by userspace | |
852 | * after it has re-checked that there is no possible module | |
853 | * with a prod_id/manf_id/card_id match. | |
854 | */ | |
94a819f8 DB |
855 | mutex_lock(&dev->socket->ops_mutex); |
856 | ret = dev->allow_func_id_match; | |
857 | mutex_unlock(&dev->socket->ops_mutex); | |
858 | ||
859 | if (!ret) { | |
860 | dev_dbg(&dev->dev, | |
861 | "skipping FUNC_ID match until userspace ACK\n"); | |
1ad275e3 | 862 | return 0; |
94a819f8 | 863 | } |
1ad275e3 DB |
864 | } |
865 | ||
ea7b3882 | 866 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { |
d50dbec3 | 867 | dev_dbg(&dev->dev, "device needs a fake CIS\n"); |
daa9517d | 868 | if (!dev->socket->fake_cis) |
b1095afe DB |
869 | if (pcmcia_load_firmware(dev, did->cisfile)) |
870 | return 0; | |
ea7b3882 DB |
871 | } |
872 | ||
f602ff7e DB |
873 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { |
874 | int i; | |
9fea84f4 | 875 | for (i = 0; i < 4; i++) |
f602ff7e DB |
876 | if (dev->prod_id[i]) |
877 | return 0; | |
878 | if (dev->has_manf_id || dev->has_card_id || dev->has_func_id) | |
879 | return 0; | |
880 | } | |
881 | ||
1ad275e3 DB |
882 | return 1; |
883 | } | |
884 | ||
885 | ||
9fea84f4 DB |
886 | static int pcmcia_bus_match(struct device *dev, struct device_driver *drv) |
887 | { | |
888 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
889 | struct pcmcia_driver *p_drv = to_pcmcia_drv(drv); | |
e9fb13bf | 890 | const struct pcmcia_device_id *did = p_drv->id_table; |
6179b556 BW |
891 | struct pcmcia_dynid *dynid; |
892 | ||
893 | /* match dynamic devices first */ | |
3f565232 | 894 | mutex_lock(&p_drv->dynids.lock); |
6179b556 | 895 | list_for_each_entry(dynid, &p_drv->dynids.list, node) { |
d50dbec3 | 896 | dev_dbg(dev, "trying to match to %s\n", drv->name); |
6179b556 | 897 | if (pcmcia_devmatch(p_dev, &dynid->id)) { |
d50dbec3 | 898 | dev_dbg(dev, "matched to %s\n", drv->name); |
3f565232 | 899 | mutex_unlock(&p_drv->dynids.lock); |
6179b556 BW |
900 | return 1; |
901 | } | |
902 | } | |
3f565232 | 903 | mutex_unlock(&p_drv->dynids.lock); |
1da177e4 | 904 | |
1ad275e3 | 905 | while (did && did->match_flags) { |
d50dbec3 | 906 | dev_dbg(dev, "trying to match to %s\n", drv->name); |
d9d9ea01 | 907 | if (pcmcia_devmatch(p_dev, did)) { |
d50dbec3 | 908 | dev_dbg(dev, "matched to %s\n", drv->name); |
1ad275e3 | 909 | return 1; |
d9d9ea01 | 910 | } |
1ad275e3 DB |
911 | did++; |
912 | } | |
913 | ||
1da177e4 LT |
914 | return 0; |
915 | } | |
916 | ||
840c2ac5 DB |
917 | #ifdef CONFIG_HOTPLUG |
918 | ||
7eff2e7a | 919 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
920 | { |
921 | struct pcmcia_device *p_dev; | |
7eff2e7a | 922 | int i; |
840c2ac5 DB |
923 | u32 hash[4] = { 0, 0, 0, 0}; |
924 | ||
925 | if (!dev) | |
926 | return -ENODEV; | |
927 | ||
928 | p_dev = to_pcmcia_dev(dev); | |
929 | ||
930 | /* calculate hashes */ | |
9fea84f4 | 931 | for (i = 0; i < 4; i++) { |
840c2ac5 DB |
932 | if (!p_dev->prod_id[i]) |
933 | continue; | |
934 | hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); | |
935 | } | |
936 | ||
7eff2e7a | 937 | if (add_uevent_var(env, "SOCKET_NO=%u", p_dev->socket->sock)) |
840c2ac5 DB |
938 | return -ENOMEM; |
939 | ||
7eff2e7a | 940 | if (add_uevent_var(env, "DEVICE_NO=%02X", p_dev->device_no)) |
840c2ac5 DB |
941 | return -ENOMEM; |
942 | ||
7eff2e7a | 943 | if (add_uevent_var(env, "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" |
312c004d KS |
944 | "pa%08Xpb%08Xpc%08Xpd%08X", |
945 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
946 | p_dev->has_card_id ? p_dev->card_id : 0, | |
947 | p_dev->has_func_id ? p_dev->func_id : 0, | |
948 | p_dev->func, | |
949 | p_dev->device_no, | |
950 | hash[0], | |
951 | hash[1], | |
952 | hash[2], | |
953 | hash[3])) | |
840c2ac5 DB |
954 | return -ENOMEM; |
955 | ||
840c2ac5 DB |
956 | return 0; |
957 | } | |
958 | ||
959 | #else | |
960 | ||
7eff2e7a | 961 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
962 | { |
963 | return -ENODEV; | |
964 | } | |
965 | ||
966 | #endif | |
967 | ||
3f8df781 AS |
968 | /************************ runtime PM support ***************************/ |
969 | ||
970 | static int pcmcia_dev_suspend(struct device *dev, pm_message_t state); | |
971 | static int pcmcia_dev_resume(struct device *dev); | |
972 | ||
973 | static int runtime_suspend(struct device *dev) | |
974 | { | |
975 | int rc; | |
976 | ||
8e9394ce | 977 | device_lock(dev); |
3f8df781 | 978 | rc = pcmcia_dev_suspend(dev, PMSG_SUSPEND); |
8e9394ce | 979 | device_unlock(dev); |
3f8df781 AS |
980 | return rc; |
981 | } | |
982 | ||
933a838a | 983 | static int runtime_resume(struct device *dev) |
3f8df781 AS |
984 | { |
985 | int rc; | |
986 | ||
8e9394ce | 987 | device_lock(dev); |
3f8df781 | 988 | rc = pcmcia_dev_resume(dev); |
8e9394ce | 989 | device_unlock(dev); |
933a838a | 990 | return rc; |
3f8df781 AS |
991 | } |
992 | ||
1da177e4 LT |
993 | /************************ per-device sysfs output ***************************/ |
994 | ||
995 | #define pcmcia_device_attr(field, test, format) \ | |
e404e274 | 996 | static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
997 | { \ |
998 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
9fea84f4 | 999 | return p_dev->test ? sprintf(buf, format, p_dev->field) : -ENODEV; \ |
1da177e4 LT |
1000 | } |
1001 | ||
1002 | #define pcmcia_device_stringattr(name, field) \ | |
e404e274 | 1003 | static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1004 | { \ |
1005 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
9fea84f4 | 1006 | return p_dev->field ? sprintf(buf, "%s\n", p_dev->field) : -ENODEV; \ |
1da177e4 LT |
1007 | } |
1008 | ||
1009 | pcmcia_device_attr(func, socket, "0x%02x\n"); | |
1010 | pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); | |
1011 | pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); | |
1012 | pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); | |
1013 | pcmcia_device_stringattr(prod_id1, prod_id[0]); | |
1014 | pcmcia_device_stringattr(prod_id2, prod_id[1]); | |
1015 | pcmcia_device_stringattr(prod_id3, prod_id[2]); | |
1016 | pcmcia_device_stringattr(prod_id4, prod_id[3]); | |
1017 | ||
8f677ea0 DB |
1018 | static ssize_t pcmcia_show_resources(struct device *dev, |
1019 | struct device_attribute *attr, char *buf) | |
1020 | { | |
1021 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1022 | char *str = buf; | |
1023 | int i; | |
1024 | ||
1025 | for (i = 0; i < PCMCIA_NUM_RESOURCES; i++) | |
1026 | str += sprintf(str, "%pr\n", p_dev->resource[i]); | |
1027 | ||
1028 | return str - buf; | |
1029 | } | |
db1019ca DB |
1030 | |
1031 | static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf) | |
1032 | { | |
1033 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1034 | ||
f6fbe01a | 1035 | if (p_dev->suspended) |
db1019ca DB |
1036 | return sprintf(buf, "off\n"); |
1037 | else | |
1038 | return sprintf(buf, "on\n"); | |
1039 | } | |
1040 | ||
1041 | static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr, | |
1042 | const char *buf, size_t count) | |
1043 | { | |
1044 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1045 | int ret = 0; | |
1046 | ||
9fea84f4 DB |
1047 | if (!count) |
1048 | return -EINVAL; | |
db1019ca | 1049 | |
f6fbe01a | 1050 | if ((!p_dev->suspended) && !strncmp(buf, "off", 3)) |
3f8df781 | 1051 | ret = runtime_suspend(dev); |
f6fbe01a | 1052 | else if (p_dev->suspended && !strncmp(buf, "on", 2)) |
933a838a | 1053 | ret = runtime_resume(dev); |
db1019ca DB |
1054 | |
1055 | return ret ? ret : count; | |
1056 | } | |
1057 | ||
1058 | ||
3704511b | 1059 | static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) |
3248ff43 DB |
1060 | { |
1061 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1062 | int i; | |
1063 | u32 hash[4] = { 0, 0, 0, 0}; | |
1064 | ||
1065 | /* calculate hashes */ | |
9fea84f4 | 1066 | for (i = 0; i < 4; i++) { |
3248ff43 DB |
1067 | if (!p_dev->prod_id[i]) |
1068 | continue; | |
9fea84f4 DB |
1069 | hash[i] = crc32(0, p_dev->prod_id[i], |
1070 | strlen(p_dev->prod_id[i])); | |
3248ff43 DB |
1071 | } |
1072 | return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
1073 | "pa%08Xpb%08Xpc%08Xpd%08X\n", | |
1074 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1075 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1076 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1077 | p_dev->func, p_dev->device_no, | |
1078 | hash[0], hash[1], hash[2], hash[3]); | |
1079 | } | |
a5b55778 | 1080 | |
3248ff43 DB |
1081 | static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, |
1082 | struct device_attribute *attr, const char *buf, size_t count) | |
a5b55778 DB |
1083 | { |
1084 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
db1019ca DB |
1085 | |
1086 | if (!count) | |
1087 | return -EINVAL; | |
a5b55778 | 1088 | |
94a819f8 | 1089 | mutex_lock(&p_dev->socket->ops_mutex); |
a5b55778 | 1090 | p_dev->allow_func_id_match = 1; |
94a819f8 | 1091 | mutex_unlock(&p_dev->socket->ops_mutex); |
af461fc1 | 1092 | pcmcia_parse_uevents(p_dev->socket, PCMCIA_UEVENT_REQUERY); |
a5b55778 DB |
1093 | |
1094 | return count; | |
1095 | } | |
1096 | ||
1da177e4 LT |
1097 | static struct device_attribute pcmcia_dev_attrs[] = { |
1098 | __ATTR(function, 0444, func_show, NULL), | |
db1019ca | 1099 | __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state), |
8f677ea0 | 1100 | __ATTR(resources, 0444, pcmcia_show_resources, NULL), |
1da177e4 LT |
1101 | __ATTR_RO(func_id), |
1102 | __ATTR_RO(manf_id), | |
1103 | __ATTR_RO(card_id), | |
1104 | __ATTR_RO(prod_id1), | |
1105 | __ATTR_RO(prod_id2), | |
1106 | __ATTR_RO(prod_id3), | |
1107 | __ATTR_RO(prod_id4), | |
3248ff43 | 1108 | __ATTR_RO(modalias), |
a5b55778 | 1109 | __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), |
1da177e4 LT |
1110 | __ATTR_NULL, |
1111 | }; | |
1112 | ||
8e9e793d DB |
1113 | /* PM support, also needed for reset */ |
1114 | ||
9fea84f4 | 1115 | static int pcmcia_dev_suspend(struct device *dev, pm_message_t state) |
8e9e793d DB |
1116 | { |
1117 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1118 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1119 | int ret = 0; |
8e9e793d | 1120 | |
94a819f8 DB |
1121 | mutex_lock(&p_dev->socket->ops_mutex); |
1122 | if (p_dev->suspended) { | |
1123 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1124 | return 0; |
94a819f8 DB |
1125 | } |
1126 | p_dev->suspended = 1; | |
1127 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1128 | |
d50dbec3 | 1129 | dev_dbg(dev, "suspending\n"); |
d9d9ea01 | 1130 | |
8e9e793d DB |
1131 | if (dev->driver) |
1132 | p_drv = to_pcmcia_drv(dev->driver); | |
1133 | ||
e2d40963 DB |
1134 | if (!p_drv) |
1135 | goto out; | |
1136 | ||
1137 | if (p_drv->suspend) { | |
8661bb5b | 1138 | ret = p_drv->suspend(p_dev); |
d9d9ea01 | 1139 | if (ret) { |
ac449d6e DB |
1140 | dev_printk(KERN_ERR, dev, |
1141 | "pcmcia: device %s (driver %s) did " | |
1142 | "not want to go to sleep (%d)\n", | |
2e9b981a | 1143 | p_dev->devname, p_drv->name, ret); |
94a819f8 DB |
1144 | mutex_lock(&p_dev->socket->ops_mutex); |
1145 | p_dev->suspended = 0; | |
1146 | mutex_unlock(&p_dev->socket->ops_mutex); | |
f6fbe01a | 1147 | goto out; |
d9d9ea01 | 1148 | } |
8661bb5b | 1149 | } |
8e9e793d | 1150 | |
d9d9ea01 | 1151 | if (p_dev->device_no == p_dev->func) { |
d50dbec3 | 1152 | dev_dbg(dev, "releasing configuration\n"); |
e2d40963 | 1153 | pcmcia_release_configuration(p_dev); |
d9d9ea01 | 1154 | } |
e2d40963 | 1155 | |
f6fbe01a | 1156 | out: |
f6fbe01a | 1157 | return ret; |
8e9e793d DB |
1158 | } |
1159 | ||
1160 | ||
9fea84f4 | 1161 | static int pcmcia_dev_resume(struct device *dev) |
8e9e793d DB |
1162 | { |
1163 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
9fea84f4 | 1164 | struct pcmcia_driver *p_drv = NULL; |
f6fbe01a | 1165 | int ret = 0; |
8e9e793d | 1166 | |
94a819f8 DB |
1167 | mutex_lock(&p_dev->socket->ops_mutex); |
1168 | if (!p_dev->suspended) { | |
1169 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1170 | return 0; |
94a819f8 DB |
1171 | } |
1172 | p_dev->suspended = 0; | |
1173 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1174 | |
d50dbec3 | 1175 | dev_dbg(dev, "resuming\n"); |
d9d9ea01 | 1176 | |
8e9e793d DB |
1177 | if (dev->driver) |
1178 | p_drv = to_pcmcia_drv(dev->driver); | |
1179 | ||
e2d40963 DB |
1180 | if (!p_drv) |
1181 | goto out; | |
1182 | ||
1183 | if (p_dev->device_no == p_dev->func) { | |
d50dbec3 | 1184 | dev_dbg(dev, "requesting configuration\n"); |
1ac71e5a | 1185 | ret = pcmcia_enable_device(p_dev); |
e2d40963 DB |
1186 | if (ret) |
1187 | goto out; | |
8661bb5b | 1188 | } |
8e9e793d | 1189 | |
e2d40963 DB |
1190 | if (p_drv->resume) |
1191 | ret = p_drv->resume(p_dev); | |
1192 | ||
f6fbe01a | 1193 | out: |
f6fbe01a | 1194 | return ret; |
8e9e793d DB |
1195 | } |
1196 | ||
1197 | ||
1198 | static int pcmcia_bus_suspend_callback(struct device *dev, void * _data) | |
1199 | { | |
1200 | struct pcmcia_socket *skt = _data; | |
1201 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1202 | ||
3f8df781 | 1203 | if (p_dev->socket != skt || p_dev->suspended) |
8e9e793d DB |
1204 | return 0; |
1205 | ||
3f8df781 | 1206 | return runtime_suspend(dev); |
8e9e793d DB |
1207 | } |
1208 | ||
1209 | static int pcmcia_bus_resume_callback(struct device *dev, void * _data) | |
1210 | { | |
1211 | struct pcmcia_socket *skt = _data; | |
1212 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1213 | ||
3f8df781 | 1214 | if (p_dev->socket != skt || !p_dev->suspended) |
8e9e793d DB |
1215 | return 0; |
1216 | ||
3f8df781 | 1217 | runtime_resume(dev); |
8e9e793d DB |
1218 | |
1219 | return 0; | |
1220 | } | |
1221 | ||
1222 | static int pcmcia_bus_resume(struct pcmcia_socket *skt) | |
1223 | { | |
d50dbec3 | 1224 | dev_dbg(&skt->dev, "resuming socket %d\n", skt->sock); |
8e9e793d DB |
1225 | bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback); |
1226 | return 0; | |
1227 | } | |
1228 | ||
1229 | static int pcmcia_bus_suspend(struct pcmcia_socket *skt) | |
1230 | { | |
d50dbec3 | 1231 | dev_dbg(&skt->dev, "suspending socket %d\n", skt->sock); |
8e9e793d DB |
1232 | if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt, |
1233 | pcmcia_bus_suspend_callback)) { | |
1234 | pcmcia_bus_resume(skt); | |
1235 | return -EIO; | |
1236 | } | |
1237 | return 0; | |
1238 | } | |
1239 | ||
7b24e798 DB |
1240 | static int pcmcia_bus_remove(struct pcmcia_socket *skt) |
1241 | { | |
1242 | atomic_set(&skt->present, 0); | |
1243 | pcmcia_card_remove(skt, NULL); | |
1da177e4 | 1244 | |
7b24e798 DB |
1245 | mutex_lock(&skt->ops_mutex); |
1246 | destroy_cis_cache(skt); | |
1247 | pcmcia_cleanup_irq(skt); | |
1248 | mutex_unlock(&skt->ops_mutex); | |
1da177e4 | 1249 | |
7b24e798 DB |
1250 | return 0; |
1251 | } | |
9fea84f4 | 1252 | |
7b24e798 DB |
1253 | static int pcmcia_bus_add(struct pcmcia_socket *skt) |
1254 | { | |
1255 | atomic_set(&skt->present, 1); | |
1da177e4 | 1256 | |
7b24e798 | 1257 | mutex_lock(&skt->ops_mutex); |
ce3f9d71 | 1258 | skt->pcmcia_pfc = 0; |
7b24e798 DB |
1259 | destroy_cis_cache(skt); /* to be on the safe side... */ |
1260 | mutex_unlock(&skt->ops_mutex); | |
1da177e4 | 1261 | |
7b24e798 | 1262 | pcmcia_card_add(skt); |
1da177e4 | 1263 | |
7b24e798 DB |
1264 | return 0; |
1265 | } | |
1617406a | 1266 | |
7b24e798 DB |
1267 | static int pcmcia_bus_early_resume(struct pcmcia_socket *skt) |
1268 | { | |
1269 | if (!verify_cis_cache(skt)) { | |
1270 | pcmcia_put_socket(skt); | |
1271 | return 0; | |
1272 | } | |
1da177e4 | 1273 | |
7b24e798 | 1274 | dev_dbg(&skt->dev, "cis mismatch - different card\n"); |
f8cfa618 | 1275 | |
7b24e798 DB |
1276 | /* first, remove the card */ |
1277 | pcmcia_bus_remove(skt); | |
88b060d6 | 1278 | |
7b24e798 DB |
1279 | mutex_lock(&skt->ops_mutex); |
1280 | destroy_cis_cache(skt); | |
1281 | kfree(skt->fake_cis); | |
1282 | skt->fake_cis = NULL; | |
1283 | skt->functions = 0; | |
1284 | mutex_unlock(&skt->ops_mutex); | |
1da177e4 | 1285 | |
7b24e798 DB |
1286 | /* now, add the new card */ |
1287 | pcmcia_bus_add(skt); | |
1288 | return 0; | |
1289 | } | |
dc109497 | 1290 | |
1da177e4 | 1291 | |
04de0816 DB |
1292 | /* |
1293 | * NOTE: This is racy. There's no guarantee the card will still be | |
1294 | * physically present, even if the call to this function returns | |
1295 | * non-NULL. Furthermore, the device driver most likely is unbound | |
1296 | * almost immediately, so the timeframe where pcmcia_dev_present | |
1297 | * returns NULL is probably really really small. | |
1298 | */ | |
9fea84f4 | 1299 | struct pcmcia_device *pcmcia_dev_present(struct pcmcia_device *_p_dev) |
9940ec36 DB |
1300 | { |
1301 | struct pcmcia_device *p_dev; | |
1302 | struct pcmcia_device *ret = NULL; | |
1303 | ||
1304 | p_dev = pcmcia_get_dev(_p_dev); | |
1305 | if (!p_dev) | |
1306 | return NULL; | |
1307 | ||
04de0816 DB |
1308 | if (atomic_read(&p_dev->socket->present) != 0) |
1309 | ret = p_dev; | |
9940ec36 | 1310 | |
9940ec36 DB |
1311 | pcmcia_put_dev(p_dev); |
1312 | return ret; | |
1313 | } | |
1314 | EXPORT_SYMBOL(pcmcia_dev_present); | |
1315 | ||
1316 | ||
90c6cdd1 DB |
1317 | static struct pcmcia_callback pcmcia_bus_callback = { |
1318 | .owner = THIS_MODULE, | |
7b24e798 DB |
1319 | .add = pcmcia_bus_add, |
1320 | .remove = pcmcia_bus_remove, | |
af461fc1 | 1321 | .requery = pcmcia_requery, |
6e7b51a7 | 1322 | .validate = pccard_validate_cis, |
8e9e793d | 1323 | .suspend = pcmcia_bus_suspend, |
7b24e798 | 1324 | .early_resume = pcmcia_bus_early_resume, |
8e9e793d | 1325 | .resume = pcmcia_bus_resume, |
90c6cdd1 DB |
1326 | }; |
1327 | ||
87373318 | 1328 | static int __devinit pcmcia_bus_add_socket(struct device *dev, |
d8539d81 | 1329 | struct class_interface *class_intf) |
1da177e4 | 1330 | { |
87373318 | 1331 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 LT |
1332 | int ret; |
1333 | ||
dc109497 DB |
1334 | socket = pcmcia_get_socket(socket); |
1335 | if (!socket) { | |
ac449d6e DB |
1336 | dev_printk(KERN_ERR, dev, |
1337 | "PCMCIA obtaining reference to socket failed\n"); | |
1da177e4 LT |
1338 | return -ENODEV; |
1339 | } | |
1340 | ||
6e7b51a7 DB |
1341 | ret = sysfs_create_bin_file(&dev->kobj, &pccard_cis_attr); |
1342 | if (ret) { | |
1343 | dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n"); | |
1344 | pcmcia_put_socket(socket); | |
1345 | return ret; | |
1346 | } | |
1347 | ||
dc109497 | 1348 | INIT_LIST_HEAD(&socket->devices_list); |
ce3f9d71 | 1349 | socket->pcmcia_pfc = 0; |
dc109497 | 1350 | socket->device_count = 0; |
e4f1ac21 | 1351 | atomic_set(&socket->present, 0); |
1da177e4 | 1352 | |
90c6cdd1 | 1353 | ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback); |
1da177e4 | 1354 | if (ret) { |
ac449d6e | 1355 | dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n"); |
dc109497 | 1356 | pcmcia_put_socket(socket); |
9fea84f4 | 1357 | return ret; |
1da177e4 LT |
1358 | } |
1359 | ||
1360 | return 0; | |
1361 | } | |
1362 | ||
87373318 | 1363 | static void pcmcia_bus_remove_socket(struct device *dev, |
d8539d81 | 1364 | struct class_interface *class_intf) |
1da177e4 | 1365 | { |
87373318 | 1366 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 | 1367 | |
dc109497 | 1368 | if (!socket) |
1da177e4 LT |
1369 | return; |
1370 | ||
1371 | pccard_register_pcmcia(socket, NULL); | |
1372 | ||
dfbc9e9d | 1373 | /* unregister any unbound devices */ |
8e4d9dcb | 1374 | mutex_lock(&socket->skt_mutex); |
dfbc9e9d | 1375 | pcmcia_card_remove(socket, NULL); |
180c33ee | 1376 | release_cis_mem(socket); |
8e4d9dcb | 1377 | mutex_unlock(&socket->skt_mutex); |
dfbc9e9d | 1378 | |
6e7b51a7 DB |
1379 | sysfs_remove_bin_file(&dev->kobj, &pccard_cis_attr); |
1380 | ||
dc109497 | 1381 | pcmcia_put_socket(socket); |
1da177e4 LT |
1382 | |
1383 | return; | |
1384 | } | |
1385 | ||
1386 | ||
1387 | /* the pcmcia_bus_interface is used to handle pcmcia socket devices */ | |
ed49f5d0 | 1388 | static struct class_interface pcmcia_bus_interface __refdata = { |
1da177e4 | 1389 | .class = &pcmcia_socket_class, |
87373318 GKH |
1390 | .add_dev = &pcmcia_bus_add_socket, |
1391 | .remove_dev = &pcmcia_bus_remove_socket, | |
1da177e4 LT |
1392 | }; |
1393 | ||
1394 | ||
e7a480d2 | 1395 | struct bus_type pcmcia_bus_type = { |
1da177e4 | 1396 | .name = "pcmcia", |
312c004d | 1397 | .uevent = pcmcia_bus_uevent, |
1da177e4 LT |
1398 | .match = pcmcia_bus_match, |
1399 | .dev_attrs = pcmcia_dev_attrs, | |
1d0baa3a RK |
1400 | .probe = pcmcia_device_probe, |
1401 | .remove = pcmcia_device_remove, | |
8e9e793d DB |
1402 | .suspend = pcmcia_dev_suspend, |
1403 | .resume = pcmcia_dev_resume, | |
1da177e4 | 1404 | }; |
1da177e4 LT |
1405 | |
1406 | ||
1407 | static int __init init_pcmcia_bus(void) | |
1408 | { | |
ace7d477 RD |
1409 | int ret; |
1410 | ||
ace7d477 RD |
1411 | ret = bus_register(&pcmcia_bus_type); |
1412 | if (ret < 0) { | |
1413 | printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret); | |
1414 | return ret; | |
1415 | } | |
1416 | ret = class_interface_register(&pcmcia_bus_interface); | |
1417 | if (ret < 0) { | |
1418 | printk(KERN_WARNING | |
1419 | "pcmcia: class_interface_register error: %d\n", ret); | |
1420 | bus_unregister(&pcmcia_bus_type); | |
1421 | return ret; | |
1422 | } | |
1da177e4 | 1423 | |
1da177e4 LT |
1424 | return 0; |
1425 | } | |
9fea84f4 | 1426 | fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that |
1da177e4 LT |
1427 | * pcmcia_socket_class is already registered */ |
1428 | ||
1429 | ||
1430 | static void __exit exit_pcmcia_bus(void) | |
1431 | { | |
e7a480d2 | 1432 | class_interface_unregister(&pcmcia_bus_interface); |
1da177e4 LT |
1433 | |
1434 | bus_unregister(&pcmcia_bus_type); | |
1435 | } | |
1436 | module_exit(exit_pcmcia_bus); | |
1437 | ||
1438 | ||
1da177e4 | 1439 | MODULE_ALIAS("ds"); |