Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * ds.c -- 16-bit PCMCIA core support | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * The initial developer of the original code is David A. Hinds | |
9 | * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds | |
10 | * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. | |
11 | * | |
12 | * (C) 1999 David A. Hinds | |
8661bb5b | 13 | * (C) 2003 - 2006 Dominik Brodowski |
1da177e4 LT |
14 | */ |
15 | ||
3b659fb8 | 16 | #include <linux/kernel.h> |
1da177e4 | 17 | #include <linux/module.h> |
1da177e4 | 18 | #include <linux/init.h> |
1da177e4 | 19 | #include <linux/errno.h> |
1da177e4 LT |
20 | #include <linux/list.h> |
21 | #include <linux/delay.h> | |
1da177e4 | 22 | #include <linux/workqueue.h> |
840c2ac5 | 23 | #include <linux/crc32.h> |
daa9517d | 24 | #include <linux/firmware.h> |
360b65b9 | 25 | #include <linux/kref.h> |
43d9f7fd | 26 | #include <linux/dma-mapping.h> |
1da177e4 | 27 | |
1da177e4 LT |
28 | #include <pcmcia/cs_types.h> |
29 | #include <pcmcia/cs.h> | |
1da177e4 LT |
30 | #include <pcmcia/cistpl.h> |
31 | #include <pcmcia/ds.h> | |
32 | #include <pcmcia/ss.h> | |
33 | ||
34 | #include "cs_internal.h" | |
35 | ||
36 | /*====================================================================*/ | |
37 | ||
38 | /* Module parameters */ | |
39 | ||
40 | MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>"); | |
41 | MODULE_DESCRIPTION("PCMCIA Driver Services"); | |
42 | MODULE_LICENSE("GPL"); | |
43 | ||
7d16b658 | 44 | #ifdef CONFIG_PCMCIA_DEBUG |
e7a480d2 | 45 | int ds_pc_debug; |
1da177e4 LT |
46 | |
47 | module_param_named(pc_debug, ds_pc_debug, int, 0644); | |
48 | ||
49 | #define ds_dbg(lvl, fmt, arg...) do { \ | |
ac449d6e | 50 | if (ds_pc_debug > (lvl)) \ |
1da177e4 LT |
51 | printk(KERN_DEBUG "ds: " fmt , ## arg); \ |
52 | } while (0) | |
ac449d6e DB |
53 | #define ds_dev_dbg(lvl, dev, fmt, arg...) do { \ |
54 | if (ds_pc_debug > (lvl)) \ | |
55 | dev_printk(KERN_DEBUG, dev, "ds: " fmt , ## arg); \ | |
56 | } while (0) | |
1da177e4 LT |
57 | #else |
58 | #define ds_dbg(lvl, fmt, arg...) do { } while (0) | |
ac449d6e | 59 | #define ds_dev_dbg(lvl, dev, fmt, arg...) do { } while (0) |
1da177e4 LT |
60 | #endif |
61 | ||
e7a480d2 | 62 | spinlock_t pcmcia_dev_list_lock; |
1da177e4 | 63 | |
1da177e4 LT |
64 | /*====================================================================*/ |
65 | ||
66 | /* code which was in cs.c before */ | |
67 | ||
68 | /* String tables for error messages */ | |
69 | ||
70 | typedef struct lookup_t { | |
79ba6757 DB |
71 | const int key; |
72 | const char *msg; | |
1da177e4 LT |
73 | } lookup_t; |
74 | ||
75 | static const lookup_t error_table[] = { | |
610e2374 | 76 | { 0, "Operation succeeded" }, |
d8b0a49d | 77 | { -EIO, "Input/Output error" }, |
3939c1ef | 78 | { -ENODEV, "No card present" }, |
de6405e9 | 79 | { -EINVAL, "Bad parameter" }, |
943f70f1 | 80 | { -EACCES, "Configuration locked" }, |
610e2374 | 81 | { -EBUSY, "Resource in use" }, |
635d19be | 82 | { -ENOSPC, "No more items" }, |
610e2374 | 83 | { -ENOMEM, "Out of resource" }, |
1da177e4 LT |
84 | }; |
85 | ||
86 | ||
87 | static const lookup_t service_table[] = { | |
88 | { AccessConfigurationRegister, "AccessConfigurationRegister" }, | |
89 | { AddSocketServices, "AddSocketServices" }, | |
90 | { AdjustResourceInfo, "AdjustResourceInfo" }, | |
91 | { CheckEraseQueue, "CheckEraseQueue" }, | |
92 | { CloseMemory, "CloseMemory" }, | |
93 | { DeregisterClient, "DeregisterClient" }, | |
94 | { DeregisterEraseQueue, "DeregisterEraseQueue" }, | |
95 | { GetCardServicesInfo, "GetCardServicesInfo" }, | |
96 | { GetClientInfo, "GetClientInfo" }, | |
97 | { GetConfigurationInfo, "GetConfigurationInfo" }, | |
98 | { GetEventMask, "GetEventMask" }, | |
99 | { GetFirstClient, "GetFirstClient" }, | |
100 | { GetFirstRegion, "GetFirstRegion" }, | |
101 | { GetFirstTuple, "GetFirstTuple" }, | |
102 | { GetNextClient, "GetNextClient" }, | |
103 | { GetNextRegion, "GetNextRegion" }, | |
104 | { GetNextTuple, "GetNextTuple" }, | |
105 | { GetStatus, "GetStatus" }, | |
106 | { GetTupleData, "GetTupleData" }, | |
107 | { MapMemPage, "MapMemPage" }, | |
108 | { ModifyConfiguration, "ModifyConfiguration" }, | |
109 | { ModifyWindow, "ModifyWindow" }, | |
110 | { OpenMemory, "OpenMemory" }, | |
111 | { ParseTuple, "ParseTuple" }, | |
112 | { ReadMemory, "ReadMemory" }, | |
113 | { RegisterClient, "RegisterClient" }, | |
114 | { RegisterEraseQueue, "RegisterEraseQueue" }, | |
115 | { RegisterMTD, "RegisterMTD" }, | |
116 | { ReleaseConfiguration, "ReleaseConfiguration" }, | |
117 | { ReleaseIO, "ReleaseIO" }, | |
118 | { ReleaseIRQ, "ReleaseIRQ" }, | |
119 | { ReleaseWindow, "ReleaseWindow" }, | |
120 | { RequestConfiguration, "RequestConfiguration" }, | |
121 | { RequestIO, "RequestIO" }, | |
122 | { RequestIRQ, "RequestIRQ" }, | |
123 | { RequestSocketMask, "RequestSocketMask" }, | |
124 | { RequestWindow, "RequestWindow" }, | |
125 | { ResetCard, "ResetCard" }, | |
126 | { SetEventMask, "SetEventMask" }, | |
127 | { ValidateCIS, "ValidateCIS" }, | |
128 | { WriteMemory, "WriteMemory" }, | |
129 | { BindDevice, "BindDevice" }, | |
130 | { BindMTD, "BindMTD" }, | |
131 | { ReportError, "ReportError" }, | |
132 | { SuspendCard, "SuspendCard" }, | |
133 | { ResumeCard, "ResumeCard" }, | |
134 | { EjectCard, "EjectCard" }, | |
135 | { InsertCard, "InsertCard" }, | |
136 | { ReplaceCIS, "ReplaceCIS" } | |
137 | }; | |
138 | ||
79ba6757 | 139 | const char *pcmcia_error_func(int func) |
1da177e4 LT |
140 | { |
141 | int i; | |
1da177e4 LT |
142 | |
143 | for (i = 0; i < ARRAY_SIZE(service_table); i++) | |
79ba6757 DB |
144 | if (service_table[i].key == func) |
145 | return service_table[i].msg; | |
1da177e4 | 146 | |
79ba6757 DB |
147 | return "Unknown service number"; |
148 | } | |
149 | EXPORT_SYMBOL(pcmcia_error_func); | |
1da177e4 | 150 | |
79ba6757 DB |
151 | const char *pcmcia_error_ret(int ret) |
152 | { | |
153 | int i; | |
1da177e4 | 154 | |
79ba6757 DB |
155 | for (i = 0; i < ARRAY_SIZE(error_table); i++) |
156 | if (error_table[i].key == ret) | |
157 | return error_table[i].msg; | |
1da177e4 | 158 | |
79ba6757 DB |
159 | return "unknown"; |
160 | } | |
161 | EXPORT_SYMBOL(pcmcia_error_ret); | |
1da177e4 LT |
162 | |
163 | /*======================================================================*/ | |
164 | ||
1da177e4 | 165 | |
23a83bfe DB |
166 | |
167 | static void pcmcia_check_driver(struct pcmcia_driver *p_drv) | |
168 | { | |
169 | struct pcmcia_device_id *did = p_drv->id_table; | |
170 | unsigned int i; | |
171 | u32 hash; | |
172 | ||
f8cfa618 | 173 | if (!p_drv->probe || !p_drv->remove) |
ba5bb6b5 PR |
174 | printk(KERN_DEBUG "pcmcia: %s lacks a requisite callback " |
175 | "function\n", p_drv->drv.name); | |
1e212f36 | 176 | |
23a83bfe DB |
177 | while (did && did->match_flags) { |
178 | for (i=0; i<4; i++) { | |
179 | if (!did->prod_id[i]) | |
180 | continue; | |
181 | ||
182 | hash = crc32(0, did->prod_id[i], strlen(did->prod_id[i])); | |
183 | if (hash == did->prod_id_hash[i]) | |
184 | continue; | |
185 | ||
186 | printk(KERN_DEBUG "pcmcia: %s: invalid hash for " | |
187 | "product string \"%s\": is 0x%x, should " | |
188 | "be 0x%x\n", p_drv->drv.name, did->prod_id[i], | |
189 | did->prod_id_hash[i], hash); | |
5085cb26 DB |
190 | printk(KERN_DEBUG "pcmcia: see " |
191 | "Documentation/pcmcia/devicetable.txt for " | |
192 | "details\n"); | |
23a83bfe DB |
193 | } |
194 | did++; | |
195 | } | |
196 | ||
197 | return; | |
198 | } | |
199 | ||
daa9517d | 200 | |
1da177e4 LT |
201 | /*======================================================================*/ |
202 | ||
1da177e4 | 203 | |
6179b556 BW |
204 | struct pcmcia_dynid { |
205 | struct list_head node; | |
206 | struct pcmcia_device_id id; | |
207 | }; | |
208 | ||
209 | /** | |
210 | * pcmcia_store_new_id - add a new PCMCIA device ID to this driver and re-probe devices | |
211 | * @driver: target device driver | |
212 | * @buf: buffer for scanning device ID data | |
213 | * @count: input size | |
214 | * | |
215 | * Adds a new dynamic PCMCIA device ID to this driver, | |
216 | * and causes the driver to probe for all devices again. | |
217 | */ | |
218 | static ssize_t | |
219 | pcmcia_store_new_id(struct device_driver *driver, const char *buf, size_t count) | |
220 | { | |
221 | struct pcmcia_dynid *dynid; | |
222 | struct pcmcia_driver *pdrv = to_pcmcia_drv(driver); | |
223 | __u16 match_flags, manf_id, card_id; | |
224 | __u8 func_id, function, device_no; | |
225 | __u32 prod_id_hash[4] = {0, 0, 0, 0}; | |
226 | int fields=0; | |
227 | int retval = 0; | |
228 | ||
229 | fields = sscanf(buf, "%hx %hx %hx %hhx %hhx %hhx %x %x %x %x", | |
230 | &match_flags, &manf_id, &card_id, &func_id, &function, &device_no, | |
231 | &prod_id_hash[0], &prod_id_hash[1], &prod_id_hash[2], &prod_id_hash[3]); | |
232 | if (fields < 6) | |
233 | return -EINVAL; | |
234 | ||
235 | dynid = kzalloc(sizeof(struct pcmcia_dynid), GFP_KERNEL); | |
236 | if (!dynid) | |
237 | return -ENOMEM; | |
238 | ||
239 | INIT_LIST_HEAD(&dynid->node); | |
240 | dynid->id.match_flags = match_flags; | |
241 | dynid->id.manf_id = manf_id; | |
242 | dynid->id.card_id = card_id; | |
243 | dynid->id.func_id = func_id; | |
244 | dynid->id.function = function; | |
245 | dynid->id.device_no = device_no; | |
246 | memcpy(dynid->id.prod_id_hash, prod_id_hash, sizeof(__u32) * 4); | |
247 | ||
248 | spin_lock(&pdrv->dynids.lock); | |
249 | list_add_tail(&pdrv->dynids.list, &dynid->node); | |
250 | spin_unlock(&pdrv->dynids.lock); | |
251 | ||
252 | if (get_driver(&pdrv->drv)) { | |
253 | retval = driver_attach(&pdrv->drv); | |
254 | put_driver(&pdrv->drv); | |
255 | } | |
256 | ||
257 | if (retval) | |
258 | return retval; | |
259 | return count; | |
260 | } | |
261 | static DRIVER_ATTR(new_id, S_IWUSR, NULL, pcmcia_store_new_id); | |
262 | ||
263 | static void | |
264 | pcmcia_free_dynids(struct pcmcia_driver *drv) | |
265 | { | |
266 | struct pcmcia_dynid *dynid, *n; | |
267 | ||
268 | spin_lock(&drv->dynids.lock); | |
269 | list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) { | |
270 | list_del(&dynid->node); | |
271 | kfree(dynid); | |
272 | } | |
273 | spin_unlock(&drv->dynids.lock); | |
274 | } | |
275 | ||
276 | static int | |
277 | pcmcia_create_newid_file(struct pcmcia_driver *drv) | |
278 | { | |
279 | int error = 0; | |
280 | if (drv->probe != NULL) | |
2344c6de | 281 | error = driver_create_file(&drv->drv, &driver_attr_new_id); |
6179b556 BW |
282 | return error; |
283 | } | |
284 | ||
285 | ||
1da177e4 LT |
286 | /** |
287 | * pcmcia_register_driver - register a PCMCIA driver with the bus core | |
78187865 | 288 | * @driver: the &driver being registered |
1da177e4 LT |
289 | * |
290 | * Registers a PCMCIA driver with the PCMCIA bus core. | |
291 | */ | |
1da177e4 LT |
292 | int pcmcia_register_driver(struct pcmcia_driver *driver) |
293 | { | |
6179b556 BW |
294 | int error; |
295 | ||
1da177e4 LT |
296 | if (!driver) |
297 | return -EINVAL; | |
298 | ||
23a83bfe DB |
299 | pcmcia_check_driver(driver); |
300 | ||
1da177e4 LT |
301 | /* initialize common fields */ |
302 | driver->drv.bus = &pcmcia_bus_type; | |
303 | driver->drv.owner = driver->owner; | |
6179b556 BW |
304 | spin_lock_init(&driver->dynids.lock); |
305 | INIT_LIST_HEAD(&driver->dynids.list); | |
1da177e4 | 306 | |
d9d9ea01 DB |
307 | ds_dbg(3, "registering driver %s\n", driver->drv.name); |
308 | ||
6179b556 BW |
309 | error = driver_register(&driver->drv); |
310 | if (error < 0) | |
311 | return error; | |
312 | ||
313 | error = pcmcia_create_newid_file(driver); | |
314 | if (error) | |
315 | driver_unregister(&driver->drv); | |
316 | ||
317 | return error; | |
1da177e4 LT |
318 | } |
319 | EXPORT_SYMBOL(pcmcia_register_driver); | |
320 | ||
321 | /** | |
322 | * pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core | |
78187865 | 323 | * @driver: the &driver being unregistered |
1da177e4 LT |
324 | */ |
325 | void pcmcia_unregister_driver(struct pcmcia_driver *driver) | |
326 | { | |
d9d9ea01 | 327 | ds_dbg(3, "unregistering driver %s\n", driver->drv.name); |
1da177e4 | 328 | driver_unregister(&driver->drv); |
6179b556 | 329 | pcmcia_free_dynids(driver); |
1da177e4 LT |
330 | } |
331 | EXPORT_SYMBOL(pcmcia_unregister_driver); | |
332 | ||
1da177e4 LT |
333 | |
334 | /* pcmcia_device handling */ | |
335 | ||
e7a480d2 | 336 | struct pcmcia_device * pcmcia_get_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
337 | { |
338 | struct device *tmp_dev; | |
339 | tmp_dev = get_device(&p_dev->dev); | |
340 | if (!tmp_dev) | |
341 | return NULL; | |
342 | return to_pcmcia_dev(tmp_dev); | |
343 | } | |
344 | ||
e7a480d2 | 345 | void pcmcia_put_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
346 | { |
347 | if (p_dev) | |
348 | put_device(&p_dev->dev); | |
349 | } | |
350 | ||
360b65b9 DB |
351 | static void pcmcia_release_function(struct kref *ref) |
352 | { | |
353 | struct config_t *c = container_of(ref, struct config_t, ref); | |
d9d9ea01 | 354 | ds_dbg(1, "releasing config_t\n"); |
360b65b9 DB |
355 | kfree(c); |
356 | } | |
357 | ||
1da177e4 LT |
358 | static void pcmcia_release_dev(struct device *dev) |
359 | { | |
360 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
ac449d6e | 361 | ds_dev_dbg(1, dev, "releasing device\n"); |
dc109497 | 362 | pcmcia_put_socket(p_dev->socket); |
bd65a685 | 363 | kfree(p_dev->devname); |
360b65b9 | 364 | kref_put(&p_dev->function_config->ref, pcmcia_release_function); |
1da177e4 LT |
365 | kfree(p_dev); |
366 | } | |
367 | ||
1d2c9042 | 368 | static void pcmcia_add_device_later(struct pcmcia_socket *s, int mfc) |
82d56e6d DB |
369 | { |
370 | if (!s->pcmcia_state.device_add_pending) { | |
ac449d6e | 371 | ds_dev_dbg(1, &s->dev, "scheduling to add %s secondary" |
d9d9ea01 | 372 | " device to %d\n", mfc ? "mfc" : "pfc", s->sock); |
82d56e6d | 373 | s->pcmcia_state.device_add_pending = 1; |
1d2c9042 | 374 | s->pcmcia_state.mfc_pfc = mfc; |
82d56e6d DB |
375 | schedule_work(&s->device_add); |
376 | } | |
377 | return; | |
378 | } | |
1da177e4 LT |
379 | |
380 | static int pcmcia_device_probe(struct device * dev) | |
381 | { | |
382 | struct pcmcia_device *p_dev; | |
383 | struct pcmcia_driver *p_drv; | |
82d56e6d | 384 | struct pcmcia_device_id *did; |
f8cfa618 | 385 | struct pcmcia_socket *s; |
af2b3b50 | 386 | cistpl_config_t cis_config; |
1da177e4 LT |
387 | int ret = 0; |
388 | ||
389 | dev = get_device(dev); | |
390 | if (!dev) | |
391 | return -ENODEV; | |
392 | ||
393 | p_dev = to_pcmcia_dev(dev); | |
394 | p_drv = to_pcmcia_drv(dev->driver); | |
f8cfa618 | 395 | s = p_dev->socket; |
1da177e4 | 396 | |
f3e7a7b6 | 397 | /* The PCMCIA code passes the match data in via dev_set_drvdata(dev) |
cec5eb7b AC |
398 | * which is an ugly hack. Once the driver probe is called it may |
399 | * and often will overwrite the match data so we must save it first | |
400 | * | |
401 | * handle pseudo multifunction devices: | |
402 | * there are at most two pseudo multifunction devices. | |
403 | * if we're matching against the first, schedule a | |
404 | * call which will then check whether there are two | |
405 | * pseudo devices, and if not, add the second one. | |
406 | */ | |
f3e7a7b6 | 407 | did = dev_get_drvdata(&p_dev->dev); |
cec5eb7b | 408 | |
ac449d6e | 409 | ds_dev_dbg(1, dev, "trying to bind to %s\n", p_drv->drv.name); |
d9d9ea01 | 410 | |
360b65b9 DB |
411 | if ((!p_drv->probe) || (!p_dev->function_config) || |
412 | (!try_module_get(p_drv->owner))) { | |
1da177e4 LT |
413 | ret = -EINVAL; |
414 | goto put_dev; | |
415 | } | |
416 | ||
af2b3b50 DB |
417 | /* set up some more device information */ |
418 | ret = pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_CONFIG, | |
419 | &cis_config); | |
420 | if (!ret) { | |
421 | p_dev->conf.ConfigBase = cis_config.base; | |
422 | p_dev->conf.Present = cis_config.rmask[0]; | |
423 | } else { | |
ac449d6e DB |
424 | dev_printk(KERN_INFO, dev, |
425 | "pcmcia: could not parse base and rmask0 of CIS\n"); | |
af2b3b50 DB |
426 | p_dev->conf.ConfigBase = 0; |
427 | p_dev->conf.Present = 0; | |
428 | } | |
429 | ||
f8cfa618 | 430 | ret = p_drv->probe(p_dev); |
d9d9ea01 | 431 | if (ret) { |
ac449d6e DB |
432 | ds_dev_dbg(1, dev, "binding to %s failed with %d\n", |
433 | p_drv->drv.name, ret); | |
82d56e6d | 434 | goto put_module; |
d9d9ea01 | 435 | } |
82d56e6d | 436 | |
4ceadbf5 | 437 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
82d56e6d | 438 | (p_dev->socket->device_count == 1) && (p_dev->device_no == 0)) |
1d2c9042 | 439 | pcmcia_add_device_later(p_dev->socket, 0); |
f8cfa618 | 440 | |
cec5eb7b | 441 | put_module: |
1da177e4 LT |
442 | if (ret) |
443 | module_put(p_drv->owner); | |
cec5eb7b | 444 | put_dev: |
f8cfa618 | 445 | if (ret) |
1da177e4 LT |
446 | put_device(dev); |
447 | return (ret); | |
448 | } | |
449 | ||
450 | ||
d6ff5a85 DB |
451 | /* |
452 | * Removes a PCMCIA card from the device tree and socket list. | |
453 | */ | |
454 | static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *leftover) | |
455 | { | |
456 | struct pcmcia_device *p_dev; | |
457 | struct pcmcia_device *tmp; | |
458 | unsigned long flags; | |
459 | ||
ac449d6e DB |
460 | ds_dev_dbg(2, leftover ? &leftover->dev : &s->dev, |
461 | "pcmcia_card_remove(%d) %s\n", s->sock, | |
462 | leftover ? leftover->devname : ""); | |
d6ff5a85 DB |
463 | |
464 | if (!leftover) | |
465 | s->device_count = 0; | |
466 | else | |
467 | s->device_count = 1; | |
468 | ||
469 | /* unregister all pcmcia_devices registered with this socket, except leftover */ | |
470 | list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) { | |
471 | if (p_dev == leftover) | |
472 | continue; | |
473 | ||
474 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
475 | list_del(&p_dev->socket_device_list); | |
476 | p_dev->_removed=1; | |
477 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
478 | ||
ac449d6e | 479 | ds_dev_dbg(2, &p_dev->dev, "unregistering device\n"); |
d6ff5a85 DB |
480 | device_unregister(&p_dev->dev); |
481 | } | |
482 | ||
483 | return; | |
484 | } | |
485 | ||
1da177e4 LT |
486 | static int pcmcia_device_remove(struct device * dev) |
487 | { | |
488 | struct pcmcia_device *p_dev; | |
489 | struct pcmcia_driver *p_drv; | |
d6ff5a85 | 490 | struct pcmcia_device_id *did; |
cc3b4866 | 491 | int i; |
1da177e4 | 492 | |
1da177e4 LT |
493 | p_dev = to_pcmcia_dev(dev); |
494 | p_drv = to_pcmcia_drv(dev->driver); | |
d6ff5a85 | 495 | |
ac449d6e | 496 | ds_dev_dbg(1, dev, "removing device\n"); |
d9d9ea01 | 497 | |
d6ff5a85 DB |
498 | /* If we're removing the primary module driving a |
499 | * pseudo multi-function card, we need to unbind | |
500 | * all devices | |
501 | */ | |
f3e7a7b6 | 502 | did = dev_get_drvdata(&p_dev->dev); |
b2f51a1c | 503 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
d6ff5a85 DB |
504 | (p_dev->socket->device_count != 0) && |
505 | (p_dev->device_no == 0)) | |
506 | pcmcia_card_remove(p_dev->socket, p_dev); | |
507 | ||
508 | /* detach the "instance" */ | |
f3990715 DB |
509 | if (!p_drv) |
510 | return 0; | |
1da177e4 | 511 | |
f3990715 | 512 | if (p_drv->remove) |
cc3b4866 DB |
513 | p_drv->remove(p_dev); |
514 | ||
a0aab143 DB |
515 | p_dev->dev_node = NULL; |
516 | ||
f3990715 | 517 | /* check for proper unloading */ |
e2d40963 | 518 | if (p_dev->_irq || p_dev->_io || p_dev->_locked) |
ac449d6e DB |
519 | dev_printk(KERN_INFO, dev, |
520 | "pcmcia: driver %s did not release config properly\n", | |
521 | p_drv->drv.name); | |
cc3b4866 | 522 | |
f3990715 | 523 | for (i = 0; i < MAX_WIN; i++) |
e2d40963 | 524 | if (p_dev->_win & CLIENT_WIN_REQ(i)) |
ac449d6e DB |
525 | dev_printk(KERN_INFO, dev, |
526 | "pcmcia: driver %s did not release window properly\n", | |
527 | p_drv->drv.name); | |
cc3b4866 | 528 | |
f3990715 DB |
529 | /* references from pcmcia_probe_device */ |
530 | pcmcia_put_dev(p_dev); | |
531 | module_put(p_drv->owner); | |
1da177e4 LT |
532 | |
533 | return 0; | |
534 | } | |
535 | ||
536 | ||
1da177e4 LT |
537 | /* |
538 | * pcmcia_device_query -- determine information about a pcmcia device | |
539 | */ | |
540 | static int pcmcia_device_query(struct pcmcia_device *p_dev) | |
541 | { | |
542 | cistpl_manfid_t manf_id; | |
543 | cistpl_funcid_t func_id; | |
76fa82fb | 544 | cistpl_vers_1_t *vers1; |
1da177e4 LT |
545 | unsigned int i; |
546 | ||
76fa82fb IM |
547 | vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL); |
548 | if (!vers1) | |
549 | return -ENOMEM; | |
550 | ||
1da177e4 LT |
551 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
552 | CISTPL_MANFID, &manf_id)) { | |
553 | p_dev->manf_id = manf_id.manf; | |
554 | p_dev->card_id = manf_id.card; | |
555 | p_dev->has_manf_id = 1; | |
556 | p_dev->has_card_id = 1; | |
557 | } | |
558 | ||
559 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, | |
560 | CISTPL_FUNCID, &func_id)) { | |
561 | p_dev->func_id = func_id.func; | |
562 | p_dev->has_func_id = 1; | |
563 | } else { | |
564 | /* rule of thumb: cards with no FUNCID, but with | |
565 | * common memory device geometry information, are | |
566 | * probably memory cards (from pcmcia-cs) */ | |
76fa82fb IM |
567 | cistpl_device_geo_t *devgeo; |
568 | ||
569 | devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL); | |
570 | if (!devgeo) { | |
571 | kfree(vers1); | |
572 | return -ENOMEM; | |
573 | } | |
1da177e4 | 574 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
76fa82fb | 575 | CISTPL_DEVICE_GEO, devgeo)) { |
ac449d6e DB |
576 | ds_dev_dbg(0, &p_dev->dev, |
577 | "mem device geometry probably means " | |
578 | "FUNCID_MEMORY\n"); | |
1da177e4 LT |
579 | p_dev->func_id = CISTPL_FUNCID_MEMORY; |
580 | p_dev->has_func_id = 1; | |
581 | } | |
76fa82fb | 582 | kfree(devgeo); |
1da177e4 LT |
583 | } |
584 | ||
585 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_VERS_1, | |
76fa82fb IM |
586 | vers1)) { |
587 | for (i=0; i < vers1->ns; i++) { | |
1da177e4 LT |
588 | char *tmp; |
589 | unsigned int length; | |
590 | ||
76fa82fb | 591 | tmp = vers1->str + vers1->ofs[i]; |
1da177e4 LT |
592 | |
593 | length = strlen(tmp) + 1; | |
6e3d4f25 | 594 | if ((length < 2) || (length > 255)) |
1da177e4 LT |
595 | continue; |
596 | ||
597 | p_dev->prod_id[i] = kmalloc(sizeof(char) * length, | |
598 | GFP_KERNEL); | |
599 | if (!p_dev->prod_id[i]) | |
600 | continue; | |
601 | ||
602 | p_dev->prod_id[i] = strncpy(p_dev->prod_id[i], | |
603 | tmp, length); | |
604 | } | |
605 | } | |
606 | ||
76fa82fb | 607 | kfree(vers1); |
1da177e4 LT |
608 | return 0; |
609 | } | |
610 | ||
611 | ||
612 | /* device_add_lock is needed to avoid double registration by cardmgr and kernel. | |
613 | * Serializes pcmcia_device_add; will most likely be removed in future. | |
614 | * | |
615 | * While it has the caveat that adding new PCMCIA devices inside(!) device_register() | |
616 | * won't work, this doesn't matter much at the moment: the driver core doesn't | |
617 | * support it either. | |
618 | */ | |
7fe908dd | 619 | static DEFINE_MUTEX(device_add_lock); |
1da177e4 | 620 | |
dc109497 | 621 | struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function) |
1da177e4 | 622 | { |
360b65b9 | 623 | struct pcmcia_device *p_dev, *tmp_dev; |
1da177e4 LT |
624 | unsigned long flags; |
625 | ||
dc109497 | 626 | s = pcmcia_get_socket(s); |
1da177e4 LT |
627 | if (!s) |
628 | return NULL; | |
629 | ||
7fe908dd | 630 | mutex_lock(&device_add_lock); |
1da177e4 | 631 | |
d9d9ea01 DB |
632 | ds_dbg(3, "adding device to %d, function %d\n", s->sock, function); |
633 | ||
6cf5be51 DB |
634 | /* max of 4 devices per card */ |
635 | if (s->device_count == 4) | |
1ad275e3 DB |
636 | goto err_put; |
637 | ||
8084b372 | 638 | p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL); |
1da177e4 LT |
639 | if (!p_dev) |
640 | goto err_put; | |
1da177e4 | 641 | |
dc109497 | 642 | p_dev->socket = s; |
1da177e4 LT |
643 | p_dev->device_no = (s->device_count++); |
644 | p_dev->func = function; | |
645 | ||
646 | p_dev->dev.bus = &pcmcia_bus_type; | |
87373318 | 647 | p_dev->dev.parent = s->dev.parent; |
1da177e4 | 648 | p_dev->dev.release = pcmcia_release_dev; |
43d9f7fd JB |
649 | /* by default don't allow DMA */ |
650 | p_dev->dma_mask = DMA_MASK_NONE; | |
651 | p_dev->dev.dma_mask = &p_dev->dma_mask; | |
25096986 KS |
652 | dev_set_name(&p_dev->dev, "%d.%d", p_dev->socket->sock, p_dev->device_no); |
653 | if (!dev_name(&p_dev->dev)) | |
654 | goto err_free; | |
655 | p_dev->devname = kasprintf(GFP_KERNEL, "pcmcia%s", dev_name(&p_dev->dev)); | |
bd65a685 BG |
656 | if (!p_dev->devname) |
657 | goto err_free; | |
ac449d6e | 658 | ds_dev_dbg(3, &p_dev->dev, "devname is %s\n", p_dev->devname); |
1da177e4 | 659 | |
1da177e4 | 660 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
360b65b9 DB |
661 | |
662 | /* | |
663 | * p_dev->function_config must be the same for all card functions. | |
664 | * Note that this is serialized by the device_add_lock, so that | |
665 | * only one such struct will be created. | |
666 | */ | |
667 | list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list) | |
668 | if (p_dev->func == tmp_dev->func) { | |
669 | p_dev->function_config = tmp_dev->function_config; | |
3e879f61 K |
670 | p_dev->io = tmp_dev->io; |
671 | p_dev->irq = tmp_dev->irq; | |
360b65b9 DB |
672 | kref_get(&p_dev->function_config->ref); |
673 | } | |
674 | ||
675 | /* Add to the list in pcmcia_bus_socket */ | |
6171b88b | 676 | list_add(&p_dev->socket_device_list, &s->devices_list); |
360b65b9 | 677 | |
1da177e4 LT |
678 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
679 | ||
360b65b9 | 680 | if (!p_dev->function_config) { |
ac449d6e | 681 | ds_dev_dbg(3, &p_dev->dev, "creating config_t\n"); |
360b65b9 DB |
682 | p_dev->function_config = kzalloc(sizeof(struct config_t), |
683 | GFP_KERNEL); | |
684 | if (!p_dev->function_config) | |
685 | goto err_unreg; | |
686 | kref_init(&p_dev->function_config->ref); | |
687 | } | |
688 | ||
ac449d6e DB |
689 | dev_printk(KERN_NOTICE, &p_dev->dev, |
690 | "pcmcia: registering new device %s\n", | |
691 | p_dev->devname); | |
807277cb | 692 | |
1ad275e3 DB |
693 | pcmcia_device_query(p_dev); |
694 | ||
360b65b9 DB |
695 | if (device_register(&p_dev->dev)) |
696 | goto err_unreg; | |
1da177e4 | 697 | |
7fe908dd | 698 | mutex_unlock(&device_add_lock); |
1da177e4 LT |
699 | |
700 | return p_dev; | |
701 | ||
360b65b9 DB |
702 | err_unreg: |
703 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
704 | list_del(&p_dev->socket_device_list); | |
705 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
706 | ||
1da177e4 | 707 | err_free: |
bd65a685 | 708 | kfree(p_dev->devname); |
1da177e4 LT |
709 | kfree(p_dev); |
710 | s->device_count--; | |
711 | err_put: | |
7fe908dd | 712 | mutex_unlock(&device_add_lock); |
dc109497 | 713 | pcmcia_put_socket(s); |
1da177e4 LT |
714 | |
715 | return NULL; | |
716 | } | |
717 | ||
718 | ||
719 | static int pcmcia_card_add(struct pcmcia_socket *s) | |
720 | { | |
1da177e4 | 721 | cistpl_longlink_mfc_t mfc; |
c5081d5f | 722 | unsigned int no_funcs, i, no_chains; |
1da177e4 LT |
723 | int ret = 0; |
724 | ||
d9d9ea01 | 725 | if (!(s->resource_setup_done)) { |
ac449d6e DB |
726 | ds_dev_dbg(3, &s->dev, |
727 | "no resources available, delaying card_add\n"); | |
1da177e4 | 728 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 729 | } |
1da177e4 | 730 | |
d9d9ea01 | 731 | if (pcmcia_validate_mem(s)) { |
ac449d6e | 732 | ds_dev_dbg(3, &s->dev, "validating mem resources failed, " |
d9d9ea01 | 733 | "delaying card_add\n"); |
de75914e | 734 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 735 | } |
de75914e | 736 | |
c5081d5f DB |
737 | ret = pccard_validate_cis(s, BIND_FN_ALL, &no_chains); |
738 | if (ret || !no_chains) { | |
ac449d6e | 739 | ds_dev_dbg(0, &s->dev, "invalid CIS or invalid resources\n"); |
1da177e4 LT |
740 | return -ENODEV; |
741 | } | |
742 | ||
743 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
744 | no_funcs = mfc.nfn; | |
745 | else | |
746 | no_funcs = 1; | |
1d2c9042 | 747 | s->functions = no_funcs; |
1da177e4 | 748 | |
1da177e4 | 749 | for (i=0; i < no_funcs; i++) |
dc109497 | 750 | pcmcia_device_add(s, i); |
1da177e4 LT |
751 | |
752 | return (ret); | |
753 | } | |
754 | ||
755 | ||
4796b71f | 756 | static void pcmcia_delayed_add_device(struct work_struct *work) |
1ad275e3 | 757 | { |
c4028958 DH |
758 | struct pcmcia_socket *s = |
759 | container_of(work, struct pcmcia_socket, device_add); | |
ac449d6e | 760 | ds_dev_dbg(1, &s->dev, "adding additional device to %d\n", s->sock); |
1d2c9042 | 761 | pcmcia_device_add(s, s->pcmcia_state.mfc_pfc); |
b5e43913 | 762 | s->pcmcia_state.device_add_pending = 0; |
1d2c9042 | 763 | s->pcmcia_state.mfc_pfc = 0; |
1ad275e3 DB |
764 | } |
765 | ||
e2f0b534 | 766 | static int pcmcia_requery(struct device *dev, void * _data) |
ff1fa9ef | 767 | { |
e2f0b534 | 768 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
d9d9ea01 | 769 | if (!p_dev->dev.driver) { |
ac449d6e | 770 | ds_dev_dbg(1, dev, "update device information\n"); |
e2f0b534 | 771 | pcmcia_device_query(p_dev); |
d9d9ea01 | 772 | } |
e2f0b534 DB |
773 | |
774 | return 0; | |
775 | } | |
776 | ||
4ae1cbf1 | 777 | static void pcmcia_bus_rescan(struct pcmcia_socket *skt, int new_cis) |
e2f0b534 | 778 | { |
4ae1cbf1 | 779 | int no_devices = 0; |
f901b8c4 | 780 | int ret = 0; |
e2f0b534 DB |
781 | unsigned long flags; |
782 | ||
7fe908dd | 783 | /* must be called with skt_mutex held */ |
ac449d6e | 784 | ds_dev_dbg(0, &skt->dev, "re-scanning socket %d\n", skt->sock); |
d9d9ea01 | 785 | |
e2f0b534 | 786 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
dc109497 | 787 | if (list_empty(&skt->devices_list)) |
4ae1cbf1 | 788 | no_devices = 1; |
e2f0b534 DB |
789 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
790 | ||
4ae1cbf1 DB |
791 | /* If this is because of a CIS override, start over */ |
792 | if (new_cis && !no_devices) | |
793 | pcmcia_card_remove(skt, NULL); | |
794 | ||
e2f0b534 DB |
795 | /* if no devices were added for this socket yet because of |
796 | * missing resource information or other trouble, we need to | |
797 | * do this now. */ | |
4ae1cbf1 | 798 | if (no_devices || new_cis) { |
f901b8c4 | 799 | ret = pcmcia_card_add(skt); |
e2f0b534 DB |
800 | if (ret) |
801 | return; | |
802 | } | |
803 | ||
804 | /* some device information might have changed because of a CIS | |
805 | * update or because we can finally read it correctly... so | |
806 | * determine it again, overwriting old values if necessary. */ | |
807 | bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery); | |
808 | ||
809 | /* we re-scan all devices, not just the ones connected to this | |
810 | * socket. This does not matter, though. */ | |
f901b8c4 DB |
811 | ret = bus_rescan_devices(&pcmcia_bus_type); |
812 | if (ret) | |
813 | printk(KERN_INFO "pcmcia: bus_rescan_devices failed\n"); | |
ff1fa9ef | 814 | } |
1ad275e3 | 815 | |
1d2c9042 DB |
816 | #ifdef CONFIG_PCMCIA_LOAD_CIS |
817 | ||
818 | /** | |
819 | * pcmcia_load_firmware - load CIS from userspace if device-provided is broken | |
78187865 RD |
820 | * @dev: the pcmcia device which needs a CIS override |
821 | * @filename: requested filename in /lib/firmware/ | |
1d2c9042 DB |
822 | * |
823 | * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if | |
824 | * the one provided by the card is broken. The firmware files reside in | |
825 | * /lib/firmware/ in userspace. | |
826 | */ | |
827 | static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
828 | { | |
829 | struct pcmcia_socket *s = dev->socket; | |
830 | const struct firmware *fw; | |
1d2c9042 DB |
831 | int ret = -ENOMEM; |
832 | int no_funcs; | |
833 | int old_funcs; | |
1d2c9042 DB |
834 | cistpl_longlink_mfc_t mfc; |
835 | ||
836 | if (!filename) | |
837 | return -EINVAL; | |
838 | ||
ac449d6e | 839 | ds_dev_dbg(1, &dev->dev, "trying to load CIS file %s\n", filename); |
1d2c9042 | 840 | |
ed62acec | 841 | if (request_firmware(&fw, filename, &dev->dev) == 0) { |
d9d9ea01 DB |
842 | if (fw->size >= CISTPL_MAX_CIS_SIZE) { |
843 | ret = -EINVAL; | |
ac449d6e DB |
844 | dev_printk(KERN_ERR, &dev->dev, |
845 | "pcmcia: CIS override is too big\n"); | |
1d2c9042 | 846 | goto release; |
d9d9ea01 | 847 | } |
1d2c9042 | 848 | |
53efec95 | 849 | if (!pcmcia_replace_cis(s, fw->data, fw->size)) |
1d2c9042 | 850 | ret = 0; |
d9d9ea01 | 851 | else { |
ac449d6e DB |
852 | dev_printk(KERN_ERR, &dev->dev, |
853 | "pcmcia: CIS override failed\n"); | |
d9d9ea01 DB |
854 | goto release; |
855 | } | |
856 | ||
1d2c9042 DB |
857 | |
858 | /* update information */ | |
859 | pcmcia_device_query(dev); | |
860 | ||
861 | /* does this cis override add or remove functions? */ | |
862 | old_funcs = s->functions; | |
863 | ||
864 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
865 | no_funcs = mfc.nfn; | |
866 | else | |
867 | no_funcs = 1; | |
868 | s->functions = no_funcs; | |
869 | ||
870 | if (old_funcs > no_funcs) | |
871 | pcmcia_card_remove(s, dev); | |
872 | else if (no_funcs > old_funcs) | |
873 | pcmcia_add_device_later(s, 1); | |
874 | } | |
875 | release: | |
876 | release_firmware(fw); | |
877 | ||
878 | return (ret); | |
879 | } | |
880 | ||
881 | #else /* !CONFIG_PCMCIA_LOAD_CIS */ | |
882 | ||
883 | static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
884 | { | |
885 | return -ENODEV; | |
886 | } | |
887 | ||
888 | #endif | |
889 | ||
890 | ||
1ad275e3 DB |
891 | static inline int pcmcia_devmatch(struct pcmcia_device *dev, |
892 | struct pcmcia_device_id *did) | |
893 | { | |
894 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) { | |
895 | if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id)) | |
896 | return 0; | |
897 | } | |
898 | ||
899 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) { | |
900 | if ((!dev->has_card_id) || (dev->card_id != did->card_id)) | |
901 | return 0; | |
902 | } | |
903 | ||
904 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) { | |
905 | if (dev->func != did->function) | |
906 | return 0; | |
907 | } | |
908 | ||
909 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) { | |
910 | if (!dev->prod_id[0]) | |
911 | return 0; | |
912 | if (strcmp(did->prod_id[0], dev->prod_id[0])) | |
913 | return 0; | |
914 | } | |
915 | ||
916 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) { | |
917 | if (!dev->prod_id[1]) | |
918 | return 0; | |
919 | if (strcmp(did->prod_id[1], dev->prod_id[1])) | |
920 | return 0; | |
921 | } | |
922 | ||
923 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) { | |
924 | if (!dev->prod_id[2]) | |
925 | return 0; | |
926 | if (strcmp(did->prod_id[2], dev->prod_id[2])) | |
927 | return 0; | |
928 | } | |
929 | ||
930 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) { | |
931 | if (!dev->prod_id[3]) | |
932 | return 0; | |
933 | if (strcmp(did->prod_id[3], dev->prod_id[3])) | |
934 | return 0; | |
935 | } | |
936 | ||
937 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { | |
1ad275e3 DB |
938 | if (dev->device_no != did->device_no) |
939 | return 0; | |
940 | } | |
941 | ||
942 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { | |
943 | if ((!dev->has_func_id) || (dev->func_id != did->func_id)) | |
944 | return 0; | |
945 | ||
946 | /* if this is a pseudo-multi-function device, | |
947 | * we need explicit matches */ | |
948 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) | |
949 | return 0; | |
950 | if (dev->device_no) | |
951 | return 0; | |
952 | ||
953 | /* also, FUNC_ID matching needs to be activated by userspace | |
954 | * after it has re-checked that there is no possible module | |
955 | * with a prod_id/manf_id/card_id match. | |
956 | */ | |
ac449d6e DB |
957 | ds_dev_dbg(0, &dev->dev, |
958 | "skipping FUNC_ID match until userspace interaction\n"); | |
1ad275e3 DB |
959 | if (!dev->allow_func_id_match) |
960 | return 0; | |
961 | } | |
962 | ||
ea7b3882 | 963 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { |
ac449d6e | 964 | ds_dev_dbg(0, &dev->dev, "device needs a fake CIS\n"); |
daa9517d DB |
965 | if (!dev->socket->fake_cis) |
966 | pcmcia_load_firmware(dev, did->cisfile); | |
967 | ||
968 | if (!dev->socket->fake_cis) | |
ea7b3882 | 969 | return 0; |
ea7b3882 DB |
970 | } |
971 | ||
f602ff7e DB |
972 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { |
973 | int i; | |
974 | for (i=0; i<4; i++) | |
975 | if (dev->prod_id[i]) | |
976 | return 0; | |
977 | if (dev->has_manf_id || dev->has_card_id || dev->has_func_id) | |
978 | return 0; | |
979 | } | |
980 | ||
f3e7a7b6 | 981 | dev_set_drvdata(&dev->dev, did); |
1ad275e3 DB |
982 | |
983 | return 1; | |
984 | } | |
985 | ||
986 | ||
1da177e4 LT |
987 | static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) { |
988 | struct pcmcia_device * p_dev = to_pcmcia_dev(dev); | |
989 | struct pcmcia_driver * p_drv = to_pcmcia_drv(drv); | |
1ad275e3 | 990 | struct pcmcia_device_id *did = p_drv->id_table; |
6179b556 BW |
991 | struct pcmcia_dynid *dynid; |
992 | ||
993 | /* match dynamic devices first */ | |
994 | spin_lock(&p_drv->dynids.lock); | |
995 | list_for_each_entry(dynid, &p_drv->dynids.list, node) { | |
ac449d6e | 996 | ds_dev_dbg(3, dev, "trying to match to %s\n", drv->name); |
6179b556 | 997 | if (pcmcia_devmatch(p_dev, &dynid->id)) { |
ac449d6e | 998 | ds_dev_dbg(0, dev, "matched to %s\n", drv->name); |
6179b556 BW |
999 | spin_unlock(&p_drv->dynids.lock); |
1000 | return 1; | |
1001 | } | |
1002 | } | |
1003 | spin_unlock(&p_drv->dynids.lock); | |
1da177e4 | 1004 | |
0e0fad8f | 1005 | #ifdef CONFIG_PCMCIA_IOCTL |
1da177e4 | 1006 | /* matching by cardmgr */ |
d9d9ea01 | 1007 | if (p_dev->cardmgr == p_drv) { |
ac449d6e | 1008 | ds_dev_dbg(0, dev, "cardmgr matched to %s\n", drv->name); |
1da177e4 | 1009 | return 1; |
d9d9ea01 | 1010 | } |
0e0fad8f | 1011 | #endif |
1da177e4 | 1012 | |
1ad275e3 | 1013 | while (did && did->match_flags) { |
ac449d6e | 1014 | ds_dev_dbg(3, dev, "trying to match to %s\n", drv->name); |
d9d9ea01 | 1015 | if (pcmcia_devmatch(p_dev, did)) { |
ac449d6e | 1016 | ds_dev_dbg(0, dev, "matched to %s\n", drv->name); |
1ad275e3 | 1017 | return 1; |
d9d9ea01 | 1018 | } |
1ad275e3 DB |
1019 | did++; |
1020 | } | |
1021 | ||
1da177e4 LT |
1022 | return 0; |
1023 | } | |
1024 | ||
840c2ac5 DB |
1025 | #ifdef CONFIG_HOTPLUG |
1026 | ||
7eff2e7a | 1027 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
1028 | { |
1029 | struct pcmcia_device *p_dev; | |
7eff2e7a | 1030 | int i; |
840c2ac5 DB |
1031 | u32 hash[4] = { 0, 0, 0, 0}; |
1032 | ||
1033 | if (!dev) | |
1034 | return -ENODEV; | |
1035 | ||
1036 | p_dev = to_pcmcia_dev(dev); | |
1037 | ||
1038 | /* calculate hashes */ | |
1039 | for (i=0; i<4; i++) { | |
1040 | if (!p_dev->prod_id[i]) | |
1041 | continue; | |
1042 | hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); | |
1043 | } | |
1044 | ||
7eff2e7a | 1045 | if (add_uevent_var(env, "SOCKET_NO=%u", p_dev->socket->sock)) |
840c2ac5 DB |
1046 | return -ENOMEM; |
1047 | ||
7eff2e7a | 1048 | if (add_uevent_var(env, "DEVICE_NO=%02X", p_dev->device_no)) |
840c2ac5 DB |
1049 | return -ENOMEM; |
1050 | ||
7eff2e7a | 1051 | if (add_uevent_var(env, "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" |
312c004d KS |
1052 | "pa%08Xpb%08Xpc%08Xpd%08X", |
1053 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1054 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1055 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1056 | p_dev->func, | |
1057 | p_dev->device_no, | |
1058 | hash[0], | |
1059 | hash[1], | |
1060 | hash[2], | |
1061 | hash[3])) | |
840c2ac5 DB |
1062 | return -ENOMEM; |
1063 | ||
840c2ac5 DB |
1064 | return 0; |
1065 | } | |
1066 | ||
1067 | #else | |
1068 | ||
7eff2e7a | 1069 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
1070 | { |
1071 | return -ENODEV; | |
1072 | } | |
1073 | ||
1074 | #endif | |
1075 | ||
3f8df781 AS |
1076 | /************************ runtime PM support ***************************/ |
1077 | ||
1078 | static int pcmcia_dev_suspend(struct device *dev, pm_message_t state); | |
1079 | static int pcmcia_dev_resume(struct device *dev); | |
1080 | ||
1081 | static int runtime_suspend(struct device *dev) | |
1082 | { | |
1083 | int rc; | |
1084 | ||
1085 | down(&dev->sem); | |
1086 | rc = pcmcia_dev_suspend(dev, PMSG_SUSPEND); | |
1087 | up(&dev->sem); | |
3f8df781 AS |
1088 | return rc; |
1089 | } | |
1090 | ||
1091 | static void runtime_resume(struct device *dev) | |
1092 | { | |
1093 | int rc; | |
1094 | ||
1095 | down(&dev->sem); | |
1096 | rc = pcmcia_dev_resume(dev); | |
1097 | up(&dev->sem); | |
3f8df781 AS |
1098 | } |
1099 | ||
1da177e4 LT |
1100 | /************************ per-device sysfs output ***************************/ |
1101 | ||
1102 | #define pcmcia_device_attr(field, test, format) \ | |
e404e274 | 1103 | static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1104 | { \ |
1105 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
1106 | return p_dev->test ? sprintf (buf, format, p_dev->field) : -ENODEV; \ | |
1107 | } | |
1108 | ||
1109 | #define pcmcia_device_stringattr(name, field) \ | |
e404e274 | 1110 | static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1111 | { \ |
1112 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
1113 | return p_dev->field ? sprintf (buf, "%s\n", p_dev->field) : -ENODEV; \ | |
1114 | } | |
1115 | ||
1116 | pcmcia_device_attr(func, socket, "0x%02x\n"); | |
1117 | pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); | |
1118 | pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); | |
1119 | pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); | |
1120 | pcmcia_device_stringattr(prod_id1, prod_id[0]); | |
1121 | pcmcia_device_stringattr(prod_id2, prod_id[1]); | |
1122 | pcmcia_device_stringattr(prod_id3, prod_id[2]); | |
1123 | pcmcia_device_stringattr(prod_id4, prod_id[3]); | |
1124 | ||
db1019ca DB |
1125 | |
1126 | static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf) | |
1127 | { | |
1128 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1129 | ||
f6fbe01a | 1130 | if (p_dev->suspended) |
db1019ca DB |
1131 | return sprintf(buf, "off\n"); |
1132 | else | |
1133 | return sprintf(buf, "on\n"); | |
1134 | } | |
1135 | ||
1136 | static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr, | |
1137 | const char *buf, size_t count) | |
1138 | { | |
1139 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1140 | int ret = 0; | |
1141 | ||
1142 | if (!count) | |
1143 | return -EINVAL; | |
1144 | ||
f6fbe01a | 1145 | if ((!p_dev->suspended) && !strncmp(buf, "off", 3)) |
3f8df781 | 1146 | ret = runtime_suspend(dev); |
f6fbe01a | 1147 | else if (p_dev->suspended && !strncmp(buf, "on", 2)) |
3f8df781 | 1148 | runtime_resume(dev); |
db1019ca DB |
1149 | |
1150 | return ret ? ret : count; | |
1151 | } | |
1152 | ||
1153 | ||
3704511b | 1154 | static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) |
3248ff43 DB |
1155 | { |
1156 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1157 | int i; | |
1158 | u32 hash[4] = { 0, 0, 0, 0}; | |
1159 | ||
1160 | /* calculate hashes */ | |
1161 | for (i=0; i<4; i++) { | |
1162 | if (!p_dev->prod_id[i]) | |
1163 | continue; | |
1164 | hash[i] = crc32(0,p_dev->prod_id[i],strlen(p_dev->prod_id[i])); | |
1165 | } | |
1166 | return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
1167 | "pa%08Xpb%08Xpc%08Xpd%08X\n", | |
1168 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1169 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1170 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1171 | p_dev->func, p_dev->device_no, | |
1172 | hash[0], hash[1], hash[2], hash[3]); | |
1173 | } | |
a5b55778 | 1174 | |
3248ff43 DB |
1175 | static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, |
1176 | struct device_attribute *attr, const char *buf, size_t count) | |
a5b55778 DB |
1177 | { |
1178 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
f901b8c4 | 1179 | int ret; |
db1019ca DB |
1180 | |
1181 | if (!count) | |
1182 | return -EINVAL; | |
a5b55778 | 1183 | |
7fe908dd | 1184 | mutex_lock(&p_dev->socket->skt_mutex); |
a5b55778 | 1185 | p_dev->allow_func_id_match = 1; |
7fe908dd | 1186 | mutex_unlock(&p_dev->socket->skt_mutex); |
a5b55778 | 1187 | |
f901b8c4 DB |
1188 | ret = bus_rescan_devices(&pcmcia_bus_type); |
1189 | if (ret) | |
1190 | printk(KERN_INFO "pcmcia: bus_rescan_devices failed after " | |
1191 | "allowing func_id matches\n"); | |
a5b55778 DB |
1192 | |
1193 | return count; | |
1194 | } | |
1195 | ||
1da177e4 LT |
1196 | static struct device_attribute pcmcia_dev_attrs[] = { |
1197 | __ATTR(function, 0444, func_show, NULL), | |
db1019ca | 1198 | __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state), |
1da177e4 LT |
1199 | __ATTR_RO(func_id), |
1200 | __ATTR_RO(manf_id), | |
1201 | __ATTR_RO(card_id), | |
1202 | __ATTR_RO(prod_id1), | |
1203 | __ATTR_RO(prod_id2), | |
1204 | __ATTR_RO(prod_id3), | |
1205 | __ATTR_RO(prod_id4), | |
3248ff43 | 1206 | __ATTR_RO(modalias), |
a5b55778 | 1207 | __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), |
1da177e4 LT |
1208 | __ATTR_NULL, |
1209 | }; | |
1210 | ||
8e9e793d DB |
1211 | /* PM support, also needed for reset */ |
1212 | ||
1213 | static int pcmcia_dev_suspend(struct device * dev, pm_message_t state) | |
1214 | { | |
1215 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1216 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1217 | int ret = 0; |
8e9e793d | 1218 | |
d6b4fa6d DB |
1219 | if (p_dev->suspended) |
1220 | return 0; | |
1221 | ||
ac449d6e | 1222 | ds_dev_dbg(2, dev, "suspending\n"); |
d9d9ea01 | 1223 | |
8e9e793d DB |
1224 | if (dev->driver) |
1225 | p_drv = to_pcmcia_drv(dev->driver); | |
1226 | ||
e2d40963 DB |
1227 | if (!p_drv) |
1228 | goto out; | |
1229 | ||
1230 | if (p_drv->suspend) { | |
8661bb5b | 1231 | ret = p_drv->suspend(p_dev); |
d9d9ea01 | 1232 | if (ret) { |
ac449d6e DB |
1233 | dev_printk(KERN_ERR, dev, |
1234 | "pcmcia: device %s (driver %s) did " | |
1235 | "not want to go to sleep (%d)\n", | |
1236 | p_dev->devname, p_drv->drv.name, ret); | |
f6fbe01a | 1237 | goto out; |
d9d9ea01 | 1238 | } |
8661bb5b | 1239 | } |
8e9e793d | 1240 | |
d9d9ea01 | 1241 | if (p_dev->device_no == p_dev->func) { |
ac449d6e | 1242 | ds_dev_dbg(2, dev, "releasing configuration\n"); |
e2d40963 | 1243 | pcmcia_release_configuration(p_dev); |
d9d9ea01 | 1244 | } |
e2d40963 | 1245 | |
f6fbe01a DB |
1246 | out: |
1247 | if (!ret) | |
1248 | p_dev->suspended = 1; | |
1249 | return ret; | |
8e9e793d DB |
1250 | } |
1251 | ||
1252 | ||
1253 | static int pcmcia_dev_resume(struct device * dev) | |
1254 | { | |
1255 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1256 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1257 | int ret = 0; |
8e9e793d | 1258 | |
d6b4fa6d DB |
1259 | if (!p_dev->suspended) |
1260 | return 0; | |
1261 | ||
ac449d6e | 1262 | ds_dev_dbg(2, dev, "resuming\n"); |
d9d9ea01 | 1263 | |
8e9e793d DB |
1264 | if (dev->driver) |
1265 | p_drv = to_pcmcia_drv(dev->driver); | |
1266 | ||
e2d40963 DB |
1267 | if (!p_drv) |
1268 | goto out; | |
1269 | ||
1270 | if (p_dev->device_no == p_dev->func) { | |
ac449d6e | 1271 | ds_dev_dbg(2, dev, "requesting configuration\n"); |
e2d40963 DB |
1272 | ret = pcmcia_request_configuration(p_dev, &p_dev->conf); |
1273 | if (ret) | |
1274 | goto out; | |
8661bb5b | 1275 | } |
8e9e793d | 1276 | |
e2d40963 DB |
1277 | if (p_drv->resume) |
1278 | ret = p_drv->resume(p_dev); | |
1279 | ||
f6fbe01a DB |
1280 | out: |
1281 | if (!ret) | |
1282 | p_dev->suspended = 0; | |
1283 | return ret; | |
8e9e793d DB |
1284 | } |
1285 | ||
1286 | ||
1287 | static int pcmcia_bus_suspend_callback(struct device *dev, void * _data) | |
1288 | { | |
1289 | struct pcmcia_socket *skt = _data; | |
1290 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1291 | ||
3f8df781 | 1292 | if (p_dev->socket != skt || p_dev->suspended) |
8e9e793d DB |
1293 | return 0; |
1294 | ||
3f8df781 | 1295 | return runtime_suspend(dev); |
8e9e793d DB |
1296 | } |
1297 | ||
1298 | static int pcmcia_bus_resume_callback(struct device *dev, void * _data) | |
1299 | { | |
1300 | struct pcmcia_socket *skt = _data; | |
1301 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1302 | ||
3f8df781 | 1303 | if (p_dev->socket != skt || !p_dev->suspended) |
8e9e793d DB |
1304 | return 0; |
1305 | ||
3f8df781 | 1306 | runtime_resume(dev); |
8e9e793d DB |
1307 | |
1308 | return 0; | |
1309 | } | |
1310 | ||
1311 | static int pcmcia_bus_resume(struct pcmcia_socket *skt) | |
1312 | { | |
ac449d6e | 1313 | ds_dev_dbg(2, &skt->dev, "resuming socket %d\n", skt->sock); |
8e9e793d DB |
1314 | bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback); |
1315 | return 0; | |
1316 | } | |
1317 | ||
1318 | static int pcmcia_bus_suspend(struct pcmcia_socket *skt) | |
1319 | { | |
ac449d6e | 1320 | ds_dev_dbg(2, &skt->dev, "suspending socket %d\n", skt->sock); |
8e9e793d DB |
1321 | if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt, |
1322 | pcmcia_bus_suspend_callback)) { | |
1323 | pcmcia_bus_resume(skt); | |
1324 | return -EIO; | |
1325 | } | |
1326 | return 0; | |
1327 | } | |
1328 | ||
1da177e4 | 1329 | |
1da177e4 LT |
1330 | /*====================================================================== |
1331 | ||
1332 | The card status event handler. | |
1333 | ||
1334 | ======================================================================*/ | |
1335 | ||
1da177e4 LT |
1336 | /* Normally, the event is passed to individual drivers after |
1337 | * informing userspace. Only for CS_EVENT_CARD_REMOVAL this | |
1338 | * is inversed to maintain historic compatibility. | |
1339 | */ | |
1340 | ||
1341 | static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) | |
1342 | { | |
dc109497 | 1343 | struct pcmcia_socket *s = pcmcia_get_socket(skt); |
1da177e4 | 1344 | |
1617406a | 1345 | if (!s) { |
ac449d6e DB |
1346 | dev_printk(KERN_ERR, &skt->dev, |
1347 | "PCMCIA obtaining reference to socket " \ | |
1348 | "failed, event 0x%x lost!\n", event); | |
1617406a FM |
1349 | return -ENODEV; |
1350 | } | |
1351 | ||
ac449d6e DB |
1352 | ds_dev_dbg(1, &skt->dev, "ds_event(0x%06x, %d, 0x%p)\n", |
1353 | event, priority, skt); | |
1da177e4 | 1354 | |
f8cfa618 | 1355 | switch (event) { |
1da177e4 | 1356 | case CS_EVENT_CARD_REMOVAL: |
b5e43913 | 1357 | s->pcmcia_state.present = 0; |
d6ff5a85 | 1358 | pcmcia_card_remove(skt, NULL); |
dc109497 | 1359 | handle_event(skt, event); |
1da177e4 | 1360 | break; |
f8cfa618 | 1361 | |
1da177e4 | 1362 | case CS_EVENT_CARD_INSERTION: |
b5e43913 | 1363 | s->pcmcia_state.present = 1; |
1da177e4 | 1364 | pcmcia_card_add(skt); |
dc109497 | 1365 | handle_event(skt, event); |
1da177e4 LT |
1366 | break; |
1367 | ||
1368 | case CS_EVENT_EJECTION_REQUEST: | |
1da177e4 LT |
1369 | break; |
1370 | ||
8e9e793d DB |
1371 | case CS_EVENT_PM_SUSPEND: |
1372 | case CS_EVENT_PM_RESUME: | |
1373 | case CS_EVENT_RESET_PHYSICAL: | |
1374 | case CS_EVENT_CARD_RESET: | |
1da177e4 | 1375 | default: |
dc109497 | 1376 | handle_event(skt, event); |
1da177e4 LT |
1377 | break; |
1378 | } | |
1379 | ||
dc109497 DB |
1380 | pcmcia_put_socket(s); |
1381 | ||
1da177e4 LT |
1382 | return 0; |
1383 | } /* ds_event */ | |
1384 | ||
1385 | ||
9940ec36 DB |
1386 | struct pcmcia_device * pcmcia_dev_present(struct pcmcia_device *_p_dev) |
1387 | { | |
1388 | struct pcmcia_device *p_dev; | |
1389 | struct pcmcia_device *ret = NULL; | |
1390 | ||
1391 | p_dev = pcmcia_get_dev(_p_dev); | |
1392 | if (!p_dev) | |
1393 | return NULL; | |
1394 | ||
1395 | if (!p_dev->socket->pcmcia_state.present) | |
1396 | goto out; | |
1397 | ||
1398 | if (p_dev->_removed) | |
1399 | goto out; | |
1400 | ||
1401 | if (p_dev->suspended) | |
1402 | goto out; | |
1403 | ||
1404 | ret = p_dev; | |
1405 | out: | |
1406 | pcmcia_put_dev(p_dev); | |
1407 | return ret; | |
1408 | } | |
1409 | EXPORT_SYMBOL(pcmcia_dev_present); | |
1410 | ||
1411 | ||
90c6cdd1 DB |
1412 | static struct pcmcia_callback pcmcia_bus_callback = { |
1413 | .owner = THIS_MODULE, | |
1414 | .event = ds_event, | |
1415 | .requery = pcmcia_bus_rescan, | |
8e9e793d DB |
1416 | .suspend = pcmcia_bus_suspend, |
1417 | .resume = pcmcia_bus_resume, | |
90c6cdd1 DB |
1418 | }; |
1419 | ||
87373318 | 1420 | static int __devinit pcmcia_bus_add_socket(struct device *dev, |
d8539d81 | 1421 | struct class_interface *class_intf) |
1da177e4 | 1422 | { |
87373318 | 1423 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 LT |
1424 | int ret; |
1425 | ||
dc109497 DB |
1426 | socket = pcmcia_get_socket(socket); |
1427 | if (!socket) { | |
ac449d6e DB |
1428 | dev_printk(KERN_ERR, dev, |
1429 | "PCMCIA obtaining reference to socket failed\n"); | |
1da177e4 LT |
1430 | return -ENODEV; |
1431 | } | |
1432 | ||
1da177e4 LT |
1433 | /* |
1434 | * Ugly. But we want to wait for the socket threads to have started up. | |
1435 | * We really should let the drivers themselves drive some of this.. | |
1436 | */ | |
1437 | msleep(250); | |
1438 | ||
e7a480d2 | 1439 | #ifdef CONFIG_PCMCIA_IOCTL |
dc109497 | 1440 | init_waitqueue_head(&socket->queue); |
e7a480d2 | 1441 | #endif |
dc109497 | 1442 | INIT_LIST_HEAD(&socket->devices_list); |
4796b71f | 1443 | INIT_WORK(&socket->device_add, pcmcia_delayed_add_device); |
dc109497 DB |
1444 | memset(&socket->pcmcia_state, 0, sizeof(u8)); |
1445 | socket->device_count = 0; | |
1da177e4 | 1446 | |
90c6cdd1 | 1447 | ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback); |
1da177e4 | 1448 | if (ret) { |
ac449d6e | 1449 | dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n"); |
dc109497 | 1450 | pcmcia_put_socket(socket); |
1da177e4 LT |
1451 | return (ret); |
1452 | } | |
1453 | ||
1454 | return 0; | |
1455 | } | |
1456 | ||
87373318 | 1457 | static void pcmcia_bus_remove_socket(struct device *dev, |
d8539d81 | 1458 | struct class_interface *class_intf) |
1da177e4 | 1459 | { |
87373318 | 1460 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 | 1461 | |
dc109497 | 1462 | if (!socket) |
1da177e4 LT |
1463 | return; |
1464 | ||
dc109497 | 1465 | socket->pcmcia_state.dead = 1; |
1da177e4 LT |
1466 | pccard_register_pcmcia(socket, NULL); |
1467 | ||
dfbc9e9d | 1468 | /* unregister any unbound devices */ |
8e4d9dcb | 1469 | mutex_lock(&socket->skt_mutex); |
dfbc9e9d | 1470 | pcmcia_card_remove(socket, NULL); |
8e4d9dcb | 1471 | mutex_unlock(&socket->skt_mutex); |
dfbc9e9d | 1472 | |
dc109497 | 1473 | pcmcia_put_socket(socket); |
1da177e4 LT |
1474 | |
1475 | return; | |
1476 | } | |
1477 | ||
1478 | ||
1479 | /* the pcmcia_bus_interface is used to handle pcmcia socket devices */ | |
ed49f5d0 | 1480 | static struct class_interface pcmcia_bus_interface __refdata = { |
1da177e4 | 1481 | .class = &pcmcia_socket_class, |
87373318 GKH |
1482 | .add_dev = &pcmcia_bus_add_socket, |
1483 | .remove_dev = &pcmcia_bus_remove_socket, | |
1da177e4 LT |
1484 | }; |
1485 | ||
1486 | ||
e7a480d2 | 1487 | struct bus_type pcmcia_bus_type = { |
1da177e4 | 1488 | .name = "pcmcia", |
312c004d | 1489 | .uevent = pcmcia_bus_uevent, |
1da177e4 LT |
1490 | .match = pcmcia_bus_match, |
1491 | .dev_attrs = pcmcia_dev_attrs, | |
1d0baa3a RK |
1492 | .probe = pcmcia_device_probe, |
1493 | .remove = pcmcia_device_remove, | |
8e9e793d DB |
1494 | .suspend = pcmcia_dev_suspend, |
1495 | .resume = pcmcia_dev_resume, | |
1da177e4 | 1496 | }; |
1da177e4 LT |
1497 | |
1498 | ||
1499 | static int __init init_pcmcia_bus(void) | |
1500 | { | |
ace7d477 RD |
1501 | int ret; |
1502 | ||
1da177e4 LT |
1503 | spin_lock_init(&pcmcia_dev_list_lock); |
1504 | ||
ace7d477 RD |
1505 | ret = bus_register(&pcmcia_bus_type); |
1506 | if (ret < 0) { | |
1507 | printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret); | |
1508 | return ret; | |
1509 | } | |
1510 | ret = class_interface_register(&pcmcia_bus_interface); | |
1511 | if (ret < 0) { | |
1512 | printk(KERN_WARNING | |
1513 | "pcmcia: class_interface_register error: %d\n", ret); | |
1514 | bus_unregister(&pcmcia_bus_type); | |
1515 | return ret; | |
1516 | } | |
1da177e4 | 1517 | |
e7a480d2 | 1518 | pcmcia_setup_ioctl(); |
1da177e4 LT |
1519 | |
1520 | return 0; | |
1521 | } | |
1522 | fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that | |
1523 | * pcmcia_socket_class is already registered */ | |
1524 | ||
1525 | ||
1526 | static void __exit exit_pcmcia_bus(void) | |
1527 | { | |
e7a480d2 | 1528 | pcmcia_cleanup_ioctl(); |
1da177e4 | 1529 | |
e7a480d2 | 1530 | class_interface_unregister(&pcmcia_bus_interface); |
1da177e4 LT |
1531 | |
1532 | bus_unregister(&pcmcia_bus_type); | |
1533 | } | |
1534 | module_exit(exit_pcmcia_bus); | |
1535 | ||
1536 | ||
1da177e4 | 1537 | MODULE_ALIAS("ds"); |