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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * ds.c -- 16-bit PCMCIA core support | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * The initial developer of the original code is David A. Hinds | |
9 | * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds | |
10 | * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. | |
11 | * | |
12 | * (C) 1999 David A. Hinds | |
8661bb5b | 13 | * (C) 2003 - 2006 Dominik Brodowski |
1da177e4 LT |
14 | */ |
15 | ||
3b659fb8 | 16 | #include <linux/kernel.h> |
1da177e4 | 17 | #include <linux/module.h> |
1da177e4 | 18 | #include <linux/init.h> |
1da177e4 | 19 | #include <linux/errno.h> |
1da177e4 LT |
20 | #include <linux/list.h> |
21 | #include <linux/delay.h> | |
1da177e4 | 22 | #include <linux/workqueue.h> |
840c2ac5 | 23 | #include <linux/crc32.h> |
daa9517d | 24 | #include <linux/firmware.h> |
360b65b9 | 25 | #include <linux/kref.h> |
43d9f7fd | 26 | #include <linux/dma-mapping.h> |
1da177e4 | 27 | |
1da177e4 LT |
28 | #include <pcmcia/cs_types.h> |
29 | #include <pcmcia/cs.h> | |
1da177e4 LT |
30 | #include <pcmcia/cistpl.h> |
31 | #include <pcmcia/ds.h> | |
32 | #include <pcmcia/ss.h> | |
33 | ||
34 | #include "cs_internal.h" | |
35 | ||
36 | /*====================================================================*/ | |
37 | ||
38 | /* Module parameters */ | |
39 | ||
40 | MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>"); | |
41 | MODULE_DESCRIPTION("PCMCIA Driver Services"); | |
42 | MODULE_LICENSE("GPL"); | |
43 | ||
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 | ||
6179b556 BW |
239 | dynid->id.match_flags = match_flags; |
240 | dynid->id.manf_id = manf_id; | |
241 | dynid->id.card_id = card_id; | |
242 | dynid->id.func_id = func_id; | |
243 | dynid->id.function = function; | |
244 | dynid->id.device_no = device_no; | |
245 | memcpy(dynid->id.prod_id_hash, prod_id_hash, sizeof(__u32) * 4); | |
246 | ||
247 | spin_lock(&pdrv->dynids.lock); | |
b4b3d7bb | 248 | list_add_tail(&dynid->node, &pdrv->dynids.list); |
6179b556 BW |
249 | spin_unlock(&pdrv->dynids.lock); |
250 | ||
251 | if (get_driver(&pdrv->drv)) { | |
252 | retval = driver_attach(&pdrv->drv); | |
253 | put_driver(&pdrv->drv); | |
254 | } | |
255 | ||
256 | if (retval) | |
257 | return retval; | |
258 | return count; | |
259 | } | |
260 | static DRIVER_ATTR(new_id, S_IWUSR, NULL, pcmcia_store_new_id); | |
261 | ||
262 | static void | |
263 | pcmcia_free_dynids(struct pcmcia_driver *drv) | |
264 | { | |
265 | struct pcmcia_dynid *dynid, *n; | |
266 | ||
267 | spin_lock(&drv->dynids.lock); | |
268 | list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) { | |
269 | list_del(&dynid->node); | |
270 | kfree(dynid); | |
271 | } | |
272 | spin_unlock(&drv->dynids.lock); | |
273 | } | |
274 | ||
275 | static int | |
276 | pcmcia_create_newid_file(struct pcmcia_driver *drv) | |
277 | { | |
278 | int error = 0; | |
279 | if (drv->probe != NULL) | |
2344c6de | 280 | error = driver_create_file(&drv->drv, &driver_attr_new_id); |
6179b556 BW |
281 | return error; |
282 | } | |
283 | ||
284 | ||
1da177e4 LT |
285 | /** |
286 | * pcmcia_register_driver - register a PCMCIA driver with the bus core | |
78187865 | 287 | * @driver: the &driver being registered |
1da177e4 LT |
288 | * |
289 | * Registers a PCMCIA driver with the PCMCIA bus core. | |
290 | */ | |
1da177e4 LT |
291 | int pcmcia_register_driver(struct pcmcia_driver *driver) |
292 | { | |
6179b556 BW |
293 | int error; |
294 | ||
1da177e4 LT |
295 | if (!driver) |
296 | return -EINVAL; | |
297 | ||
23a83bfe DB |
298 | pcmcia_check_driver(driver); |
299 | ||
1da177e4 LT |
300 | /* initialize common fields */ |
301 | driver->drv.bus = &pcmcia_bus_type; | |
302 | driver->drv.owner = driver->owner; | |
6179b556 BW |
303 | spin_lock_init(&driver->dynids.lock); |
304 | INIT_LIST_HEAD(&driver->dynids.list); | |
1da177e4 | 305 | |
d9d9ea01 DB |
306 | ds_dbg(3, "registering driver %s\n", driver->drv.name); |
307 | ||
6179b556 BW |
308 | error = driver_register(&driver->drv); |
309 | if (error < 0) | |
310 | return error; | |
311 | ||
312 | error = pcmcia_create_newid_file(driver); | |
313 | if (error) | |
314 | driver_unregister(&driver->drv); | |
315 | ||
316 | return error; | |
1da177e4 LT |
317 | } |
318 | EXPORT_SYMBOL(pcmcia_register_driver); | |
319 | ||
320 | /** | |
321 | * pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core | |
78187865 | 322 | * @driver: the &driver being unregistered |
1da177e4 LT |
323 | */ |
324 | void pcmcia_unregister_driver(struct pcmcia_driver *driver) | |
325 | { | |
d9d9ea01 | 326 | ds_dbg(3, "unregistering driver %s\n", driver->drv.name); |
1da177e4 | 327 | driver_unregister(&driver->drv); |
6179b556 | 328 | pcmcia_free_dynids(driver); |
1da177e4 LT |
329 | } |
330 | EXPORT_SYMBOL(pcmcia_unregister_driver); | |
331 | ||
1da177e4 LT |
332 | |
333 | /* pcmcia_device handling */ | |
334 | ||
e7a480d2 | 335 | struct pcmcia_device * pcmcia_get_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
336 | { |
337 | struct device *tmp_dev; | |
338 | tmp_dev = get_device(&p_dev->dev); | |
339 | if (!tmp_dev) | |
340 | return NULL; | |
341 | return to_pcmcia_dev(tmp_dev); | |
342 | } | |
343 | ||
e7a480d2 | 344 | void pcmcia_put_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
345 | { |
346 | if (p_dev) | |
347 | put_device(&p_dev->dev); | |
348 | } | |
349 | ||
360b65b9 DB |
350 | static void pcmcia_release_function(struct kref *ref) |
351 | { | |
352 | struct config_t *c = container_of(ref, struct config_t, ref); | |
d9d9ea01 | 353 | ds_dbg(1, "releasing config_t\n"); |
360b65b9 DB |
354 | kfree(c); |
355 | } | |
356 | ||
1da177e4 LT |
357 | static void pcmcia_release_dev(struct device *dev) |
358 | { | |
359 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
ac449d6e | 360 | ds_dev_dbg(1, dev, "releasing device\n"); |
dc109497 | 361 | pcmcia_put_socket(p_dev->socket); |
bd65a685 | 362 | kfree(p_dev->devname); |
360b65b9 | 363 | kref_put(&p_dev->function_config->ref, pcmcia_release_function); |
1da177e4 LT |
364 | kfree(p_dev); |
365 | } | |
366 | ||
1d2c9042 | 367 | static void pcmcia_add_device_later(struct pcmcia_socket *s, int mfc) |
82d56e6d DB |
368 | { |
369 | if (!s->pcmcia_state.device_add_pending) { | |
ac449d6e | 370 | ds_dev_dbg(1, &s->dev, "scheduling to add %s secondary" |
d9d9ea01 | 371 | " device to %d\n", mfc ? "mfc" : "pfc", s->sock); |
82d56e6d | 372 | s->pcmcia_state.device_add_pending = 1; |
1d2c9042 | 373 | s->pcmcia_state.mfc_pfc = mfc; |
82d56e6d DB |
374 | schedule_work(&s->device_add); |
375 | } | |
376 | return; | |
377 | } | |
1da177e4 LT |
378 | |
379 | static int pcmcia_device_probe(struct device * dev) | |
380 | { | |
381 | struct pcmcia_device *p_dev; | |
382 | struct pcmcia_driver *p_drv; | |
82d56e6d | 383 | struct pcmcia_device_id *did; |
f8cfa618 | 384 | struct pcmcia_socket *s; |
af2b3b50 | 385 | cistpl_config_t cis_config; |
1da177e4 LT |
386 | int ret = 0; |
387 | ||
388 | dev = get_device(dev); | |
389 | if (!dev) | |
390 | return -ENODEV; | |
391 | ||
392 | p_dev = to_pcmcia_dev(dev); | |
393 | p_drv = to_pcmcia_drv(dev->driver); | |
f8cfa618 | 394 | s = p_dev->socket; |
1da177e4 | 395 | |
f3e7a7b6 | 396 | /* The PCMCIA code passes the match data in via dev_set_drvdata(dev) |
cec5eb7b AC |
397 | * which is an ugly hack. Once the driver probe is called it may |
398 | * and often will overwrite the match data so we must save it first | |
399 | * | |
400 | * handle pseudo multifunction devices: | |
401 | * there are at most two pseudo multifunction devices. | |
402 | * if we're matching against the first, schedule a | |
403 | * call which will then check whether there are two | |
404 | * pseudo devices, and if not, add the second one. | |
405 | */ | |
f3e7a7b6 | 406 | did = dev_get_drvdata(&p_dev->dev); |
cec5eb7b | 407 | |
ac449d6e | 408 | ds_dev_dbg(1, dev, "trying to bind to %s\n", p_drv->drv.name); |
d9d9ea01 | 409 | |
360b65b9 DB |
410 | if ((!p_drv->probe) || (!p_dev->function_config) || |
411 | (!try_module_get(p_drv->owner))) { | |
1da177e4 LT |
412 | ret = -EINVAL; |
413 | goto put_dev; | |
414 | } | |
415 | ||
af2b3b50 DB |
416 | /* set up some more device information */ |
417 | ret = pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_CONFIG, | |
418 | &cis_config); | |
419 | if (!ret) { | |
420 | p_dev->conf.ConfigBase = cis_config.base; | |
421 | p_dev->conf.Present = cis_config.rmask[0]; | |
422 | } else { | |
ac449d6e DB |
423 | dev_printk(KERN_INFO, dev, |
424 | "pcmcia: could not parse base and rmask0 of CIS\n"); | |
af2b3b50 DB |
425 | p_dev->conf.ConfigBase = 0; |
426 | p_dev->conf.Present = 0; | |
427 | } | |
428 | ||
f8cfa618 | 429 | ret = p_drv->probe(p_dev); |
d9d9ea01 | 430 | if (ret) { |
ac449d6e DB |
431 | ds_dev_dbg(1, dev, "binding to %s failed with %d\n", |
432 | p_drv->drv.name, ret); | |
82d56e6d | 433 | goto put_module; |
d9d9ea01 | 434 | } |
82d56e6d | 435 | |
4ceadbf5 | 436 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
82d56e6d | 437 | (p_dev->socket->device_count == 1) && (p_dev->device_no == 0)) |
1d2c9042 | 438 | pcmcia_add_device_later(p_dev->socket, 0); |
f8cfa618 | 439 | |
cec5eb7b | 440 | put_module: |
1da177e4 LT |
441 | if (ret) |
442 | module_put(p_drv->owner); | |
cec5eb7b | 443 | put_dev: |
f8cfa618 | 444 | if (ret) |
1da177e4 LT |
445 | put_device(dev); |
446 | return (ret); | |
447 | } | |
448 | ||
449 | ||
d6ff5a85 DB |
450 | /* |
451 | * Removes a PCMCIA card from the device tree and socket list. | |
452 | */ | |
453 | static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *leftover) | |
454 | { | |
455 | struct pcmcia_device *p_dev; | |
456 | struct pcmcia_device *tmp; | |
457 | unsigned long flags; | |
458 | ||
ac449d6e DB |
459 | ds_dev_dbg(2, leftover ? &leftover->dev : &s->dev, |
460 | "pcmcia_card_remove(%d) %s\n", s->sock, | |
461 | leftover ? leftover->devname : ""); | |
d6ff5a85 DB |
462 | |
463 | if (!leftover) | |
464 | s->device_count = 0; | |
465 | else | |
466 | s->device_count = 1; | |
467 | ||
468 | /* unregister all pcmcia_devices registered with this socket, except leftover */ | |
469 | list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) { | |
470 | if (p_dev == leftover) | |
471 | continue; | |
472 | ||
473 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
474 | list_del(&p_dev->socket_device_list); | |
475 | p_dev->_removed=1; | |
476 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
477 | ||
ac449d6e | 478 | ds_dev_dbg(2, &p_dev->dev, "unregistering device\n"); |
d6ff5a85 DB |
479 | device_unregister(&p_dev->dev); |
480 | } | |
481 | ||
482 | return; | |
483 | } | |
484 | ||
1da177e4 LT |
485 | static int pcmcia_device_remove(struct device * dev) |
486 | { | |
487 | struct pcmcia_device *p_dev; | |
488 | struct pcmcia_driver *p_drv; | |
d6ff5a85 | 489 | struct pcmcia_device_id *did; |
cc3b4866 | 490 | int i; |
1da177e4 | 491 | |
1da177e4 LT |
492 | p_dev = to_pcmcia_dev(dev); |
493 | p_drv = to_pcmcia_drv(dev->driver); | |
d6ff5a85 | 494 | |
ac449d6e | 495 | ds_dev_dbg(1, dev, "removing device\n"); |
d9d9ea01 | 496 | |
d6ff5a85 DB |
497 | /* If we're removing the primary module driving a |
498 | * pseudo multi-function card, we need to unbind | |
499 | * all devices | |
500 | */ | |
f3e7a7b6 | 501 | did = dev_get_drvdata(&p_dev->dev); |
b2f51a1c | 502 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
d6ff5a85 DB |
503 | (p_dev->socket->device_count != 0) && |
504 | (p_dev->device_no == 0)) | |
505 | pcmcia_card_remove(p_dev->socket, p_dev); | |
506 | ||
507 | /* detach the "instance" */ | |
f3990715 DB |
508 | if (!p_drv) |
509 | return 0; | |
1da177e4 | 510 | |
f3990715 | 511 | if (p_drv->remove) |
cc3b4866 DB |
512 | p_drv->remove(p_dev); |
513 | ||
a0aab143 DB |
514 | p_dev->dev_node = NULL; |
515 | ||
f3990715 | 516 | /* check for proper unloading */ |
e2d40963 | 517 | if (p_dev->_irq || p_dev->_io || p_dev->_locked) |
ac449d6e DB |
518 | dev_printk(KERN_INFO, dev, |
519 | "pcmcia: driver %s did not release config properly\n", | |
520 | p_drv->drv.name); | |
cc3b4866 | 521 | |
f3990715 | 522 | for (i = 0; i < MAX_WIN; i++) |
e2d40963 | 523 | if (p_dev->_win & CLIENT_WIN_REQ(i)) |
ac449d6e DB |
524 | dev_printk(KERN_INFO, dev, |
525 | "pcmcia: driver %s did not release window properly\n", | |
526 | p_drv->drv.name); | |
cc3b4866 | 527 | |
f3990715 DB |
528 | /* references from pcmcia_probe_device */ |
529 | pcmcia_put_dev(p_dev); | |
530 | module_put(p_drv->owner); | |
1da177e4 LT |
531 | |
532 | return 0; | |
533 | } | |
534 | ||
535 | ||
1da177e4 LT |
536 | /* |
537 | * pcmcia_device_query -- determine information about a pcmcia device | |
538 | */ | |
539 | static int pcmcia_device_query(struct pcmcia_device *p_dev) | |
540 | { | |
541 | cistpl_manfid_t manf_id; | |
542 | cistpl_funcid_t func_id; | |
76fa82fb | 543 | cistpl_vers_1_t *vers1; |
1da177e4 LT |
544 | unsigned int i; |
545 | ||
76fa82fb IM |
546 | vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL); |
547 | if (!vers1) | |
548 | return -ENOMEM; | |
549 | ||
1da177e4 LT |
550 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
551 | CISTPL_MANFID, &manf_id)) { | |
552 | p_dev->manf_id = manf_id.manf; | |
553 | p_dev->card_id = manf_id.card; | |
554 | p_dev->has_manf_id = 1; | |
555 | p_dev->has_card_id = 1; | |
556 | } | |
557 | ||
558 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, | |
559 | CISTPL_FUNCID, &func_id)) { | |
560 | p_dev->func_id = func_id.func; | |
561 | p_dev->has_func_id = 1; | |
562 | } else { | |
563 | /* rule of thumb: cards with no FUNCID, but with | |
564 | * common memory device geometry information, are | |
565 | * probably memory cards (from pcmcia-cs) */ | |
76fa82fb IM |
566 | cistpl_device_geo_t *devgeo; |
567 | ||
568 | devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL); | |
569 | if (!devgeo) { | |
570 | kfree(vers1); | |
571 | return -ENOMEM; | |
572 | } | |
1da177e4 | 573 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
76fa82fb | 574 | CISTPL_DEVICE_GEO, devgeo)) { |
ac449d6e DB |
575 | ds_dev_dbg(0, &p_dev->dev, |
576 | "mem device geometry probably means " | |
577 | "FUNCID_MEMORY\n"); | |
1da177e4 LT |
578 | p_dev->func_id = CISTPL_FUNCID_MEMORY; |
579 | p_dev->has_func_id = 1; | |
580 | } | |
76fa82fb | 581 | kfree(devgeo); |
1da177e4 LT |
582 | } |
583 | ||
584 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_VERS_1, | |
76fa82fb IM |
585 | vers1)) { |
586 | for (i=0; i < vers1->ns; i++) { | |
1da177e4 LT |
587 | char *tmp; |
588 | unsigned int length; | |
589 | ||
76fa82fb | 590 | tmp = vers1->str + vers1->ofs[i]; |
1da177e4 LT |
591 | |
592 | length = strlen(tmp) + 1; | |
6e3d4f25 | 593 | if ((length < 2) || (length > 255)) |
1da177e4 LT |
594 | continue; |
595 | ||
596 | p_dev->prod_id[i] = kmalloc(sizeof(char) * length, | |
597 | GFP_KERNEL); | |
598 | if (!p_dev->prod_id[i]) | |
599 | continue; | |
600 | ||
601 | p_dev->prod_id[i] = strncpy(p_dev->prod_id[i], | |
602 | tmp, length); | |
603 | } | |
604 | } | |
605 | ||
76fa82fb | 606 | kfree(vers1); |
1da177e4 LT |
607 | return 0; |
608 | } | |
609 | ||
610 | ||
611 | /* device_add_lock is needed to avoid double registration by cardmgr and kernel. | |
612 | * Serializes pcmcia_device_add; will most likely be removed in future. | |
613 | * | |
614 | * While it has the caveat that adding new PCMCIA devices inside(!) device_register() | |
615 | * won't work, this doesn't matter much at the moment: the driver core doesn't | |
616 | * support it either. | |
617 | */ | |
7fe908dd | 618 | static DEFINE_MUTEX(device_add_lock); |
1da177e4 | 619 | |
dc109497 | 620 | struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function) |
1da177e4 | 621 | { |
360b65b9 | 622 | struct pcmcia_device *p_dev, *tmp_dev; |
1da177e4 LT |
623 | unsigned long flags; |
624 | ||
dc109497 | 625 | s = pcmcia_get_socket(s); |
1da177e4 LT |
626 | if (!s) |
627 | return NULL; | |
628 | ||
7fe908dd | 629 | mutex_lock(&device_add_lock); |
1da177e4 | 630 | |
d9d9ea01 DB |
631 | ds_dbg(3, "adding device to %d, function %d\n", s->sock, function); |
632 | ||
6cf5be51 DB |
633 | /* max of 4 devices per card */ |
634 | if (s->device_count == 4) | |
1ad275e3 DB |
635 | goto err_put; |
636 | ||
8084b372 | 637 | p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL); |
1da177e4 LT |
638 | if (!p_dev) |
639 | goto err_put; | |
1da177e4 | 640 | |
dc109497 | 641 | p_dev->socket = s; |
1da177e4 LT |
642 | p_dev->device_no = (s->device_count++); |
643 | p_dev->func = function; | |
644 | ||
645 | p_dev->dev.bus = &pcmcia_bus_type; | |
87373318 | 646 | p_dev->dev.parent = s->dev.parent; |
1da177e4 | 647 | p_dev->dev.release = pcmcia_release_dev; |
43d9f7fd JB |
648 | /* by default don't allow DMA */ |
649 | p_dev->dma_mask = DMA_MASK_NONE; | |
650 | p_dev->dev.dma_mask = &p_dev->dma_mask; | |
25096986 KS |
651 | dev_set_name(&p_dev->dev, "%d.%d", p_dev->socket->sock, p_dev->device_no); |
652 | if (!dev_name(&p_dev->dev)) | |
653 | goto err_free; | |
654 | p_dev->devname = kasprintf(GFP_KERNEL, "pcmcia%s", dev_name(&p_dev->dev)); | |
bd65a685 BG |
655 | if (!p_dev->devname) |
656 | goto err_free; | |
ac449d6e | 657 | ds_dev_dbg(3, &p_dev->dev, "devname is %s\n", p_dev->devname); |
1da177e4 | 658 | |
1da177e4 | 659 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
360b65b9 DB |
660 | |
661 | /* | |
662 | * p_dev->function_config must be the same for all card functions. | |
663 | * Note that this is serialized by the device_add_lock, so that | |
664 | * only one such struct will be created. | |
665 | */ | |
666 | list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list) | |
667 | if (p_dev->func == tmp_dev->func) { | |
668 | p_dev->function_config = tmp_dev->function_config; | |
3e879f61 K |
669 | p_dev->io = tmp_dev->io; |
670 | p_dev->irq = tmp_dev->irq; | |
360b65b9 DB |
671 | kref_get(&p_dev->function_config->ref); |
672 | } | |
673 | ||
674 | /* Add to the list in pcmcia_bus_socket */ | |
6171b88b | 675 | list_add(&p_dev->socket_device_list, &s->devices_list); |
360b65b9 | 676 | |
1da177e4 LT |
677 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
678 | ||
360b65b9 | 679 | if (!p_dev->function_config) { |
ac449d6e | 680 | ds_dev_dbg(3, &p_dev->dev, "creating config_t\n"); |
360b65b9 DB |
681 | p_dev->function_config = kzalloc(sizeof(struct config_t), |
682 | GFP_KERNEL); | |
683 | if (!p_dev->function_config) | |
684 | goto err_unreg; | |
685 | kref_init(&p_dev->function_config->ref); | |
686 | } | |
687 | ||
ac449d6e DB |
688 | dev_printk(KERN_NOTICE, &p_dev->dev, |
689 | "pcmcia: registering new device %s\n", | |
690 | p_dev->devname); | |
807277cb | 691 | |
1ad275e3 DB |
692 | pcmcia_device_query(p_dev); |
693 | ||
360b65b9 DB |
694 | if (device_register(&p_dev->dev)) |
695 | goto err_unreg; | |
1da177e4 | 696 | |
7fe908dd | 697 | mutex_unlock(&device_add_lock); |
1da177e4 LT |
698 | |
699 | return p_dev; | |
700 | ||
360b65b9 DB |
701 | err_unreg: |
702 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
703 | list_del(&p_dev->socket_device_list); | |
704 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
705 | ||
1da177e4 | 706 | err_free: |
bd65a685 | 707 | kfree(p_dev->devname); |
1da177e4 LT |
708 | kfree(p_dev); |
709 | s->device_count--; | |
710 | err_put: | |
7fe908dd | 711 | mutex_unlock(&device_add_lock); |
dc109497 | 712 | pcmcia_put_socket(s); |
1da177e4 LT |
713 | |
714 | return NULL; | |
715 | } | |
716 | ||
717 | ||
718 | static int pcmcia_card_add(struct pcmcia_socket *s) | |
719 | { | |
1da177e4 | 720 | cistpl_longlink_mfc_t mfc; |
c5081d5f | 721 | unsigned int no_funcs, i, no_chains; |
1da177e4 LT |
722 | int ret = 0; |
723 | ||
d9d9ea01 | 724 | if (!(s->resource_setup_done)) { |
ac449d6e DB |
725 | ds_dev_dbg(3, &s->dev, |
726 | "no resources available, delaying card_add\n"); | |
1da177e4 | 727 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 728 | } |
1da177e4 | 729 | |
d9d9ea01 | 730 | if (pcmcia_validate_mem(s)) { |
ac449d6e | 731 | ds_dev_dbg(3, &s->dev, "validating mem resources failed, " |
d9d9ea01 | 732 | "delaying card_add\n"); |
de75914e | 733 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 734 | } |
de75914e | 735 | |
c5081d5f DB |
736 | ret = pccard_validate_cis(s, BIND_FN_ALL, &no_chains); |
737 | if (ret || !no_chains) { | |
ac449d6e | 738 | ds_dev_dbg(0, &s->dev, "invalid CIS or invalid resources\n"); |
1da177e4 LT |
739 | return -ENODEV; |
740 | } | |
741 | ||
742 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
743 | no_funcs = mfc.nfn; | |
744 | else | |
745 | no_funcs = 1; | |
1d2c9042 | 746 | s->functions = no_funcs; |
1da177e4 | 747 | |
1da177e4 | 748 | for (i=0; i < no_funcs; i++) |
dc109497 | 749 | pcmcia_device_add(s, i); |
1da177e4 LT |
750 | |
751 | return (ret); | |
752 | } | |
753 | ||
754 | ||
4796b71f | 755 | static void pcmcia_delayed_add_device(struct work_struct *work) |
1ad275e3 | 756 | { |
c4028958 DH |
757 | struct pcmcia_socket *s = |
758 | container_of(work, struct pcmcia_socket, device_add); | |
ac449d6e | 759 | ds_dev_dbg(1, &s->dev, "adding additional device to %d\n", s->sock); |
1d2c9042 | 760 | pcmcia_device_add(s, s->pcmcia_state.mfc_pfc); |
b5e43913 | 761 | s->pcmcia_state.device_add_pending = 0; |
1d2c9042 | 762 | s->pcmcia_state.mfc_pfc = 0; |
1ad275e3 DB |
763 | } |
764 | ||
e2f0b534 | 765 | static int pcmcia_requery(struct device *dev, void * _data) |
ff1fa9ef | 766 | { |
e2f0b534 | 767 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
d9d9ea01 | 768 | if (!p_dev->dev.driver) { |
ac449d6e | 769 | ds_dev_dbg(1, dev, "update device information\n"); |
e2f0b534 | 770 | pcmcia_device_query(p_dev); |
d9d9ea01 | 771 | } |
e2f0b534 DB |
772 | |
773 | return 0; | |
774 | } | |
775 | ||
4ae1cbf1 | 776 | static void pcmcia_bus_rescan(struct pcmcia_socket *skt, int new_cis) |
e2f0b534 | 777 | { |
4ae1cbf1 | 778 | int no_devices = 0; |
f901b8c4 | 779 | int ret = 0; |
e2f0b534 DB |
780 | unsigned long flags; |
781 | ||
7fe908dd | 782 | /* must be called with skt_mutex held */ |
ac449d6e | 783 | ds_dev_dbg(0, &skt->dev, "re-scanning socket %d\n", skt->sock); |
d9d9ea01 | 784 | |
e2f0b534 | 785 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
dc109497 | 786 | if (list_empty(&skt->devices_list)) |
4ae1cbf1 | 787 | no_devices = 1; |
e2f0b534 DB |
788 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
789 | ||
4ae1cbf1 DB |
790 | /* If this is because of a CIS override, start over */ |
791 | if (new_cis && !no_devices) | |
792 | pcmcia_card_remove(skt, NULL); | |
793 | ||
e2f0b534 DB |
794 | /* if no devices were added for this socket yet because of |
795 | * missing resource information or other trouble, we need to | |
796 | * do this now. */ | |
4ae1cbf1 | 797 | if (no_devices || new_cis) { |
f901b8c4 | 798 | ret = pcmcia_card_add(skt); |
e2f0b534 DB |
799 | if (ret) |
800 | return; | |
801 | } | |
802 | ||
803 | /* some device information might have changed because of a CIS | |
804 | * update or because we can finally read it correctly... so | |
805 | * determine it again, overwriting old values if necessary. */ | |
806 | bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery); | |
807 | ||
808 | /* we re-scan all devices, not just the ones connected to this | |
809 | * socket. This does not matter, though. */ | |
f901b8c4 DB |
810 | ret = bus_rescan_devices(&pcmcia_bus_type); |
811 | if (ret) | |
812 | printk(KERN_INFO "pcmcia: bus_rescan_devices failed\n"); | |
ff1fa9ef | 813 | } |
1ad275e3 | 814 | |
1d2c9042 DB |
815 | #ifdef CONFIG_PCMCIA_LOAD_CIS |
816 | ||
817 | /** | |
818 | * pcmcia_load_firmware - load CIS from userspace if device-provided is broken | |
78187865 RD |
819 | * @dev: the pcmcia device which needs a CIS override |
820 | * @filename: requested filename in /lib/firmware/ | |
1d2c9042 DB |
821 | * |
822 | * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if | |
823 | * the one provided by the card is broken. The firmware files reside in | |
824 | * /lib/firmware/ in userspace. | |
825 | */ | |
826 | static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
827 | { | |
828 | struct pcmcia_socket *s = dev->socket; | |
829 | const struct firmware *fw; | |
1d2c9042 DB |
830 | int ret = -ENOMEM; |
831 | int no_funcs; | |
832 | int old_funcs; | |
1d2c9042 DB |
833 | cistpl_longlink_mfc_t mfc; |
834 | ||
835 | if (!filename) | |
836 | return -EINVAL; | |
837 | ||
ac449d6e | 838 | ds_dev_dbg(1, &dev->dev, "trying to load CIS file %s\n", filename); |
1d2c9042 | 839 | |
ed62acec | 840 | if (request_firmware(&fw, filename, &dev->dev) == 0) { |
d9d9ea01 DB |
841 | if (fw->size >= CISTPL_MAX_CIS_SIZE) { |
842 | ret = -EINVAL; | |
ac449d6e DB |
843 | dev_printk(KERN_ERR, &dev->dev, |
844 | "pcmcia: CIS override is too big\n"); | |
1d2c9042 | 845 | goto release; |
d9d9ea01 | 846 | } |
1d2c9042 | 847 | |
53efec95 | 848 | if (!pcmcia_replace_cis(s, fw->data, fw->size)) |
1d2c9042 | 849 | ret = 0; |
d9d9ea01 | 850 | else { |
ac449d6e DB |
851 | dev_printk(KERN_ERR, &dev->dev, |
852 | "pcmcia: CIS override failed\n"); | |
d9d9ea01 DB |
853 | goto release; |
854 | } | |
855 | ||
1d2c9042 DB |
856 | |
857 | /* update information */ | |
858 | pcmcia_device_query(dev); | |
859 | ||
860 | /* does this cis override add or remove functions? */ | |
861 | old_funcs = s->functions; | |
862 | ||
863 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
864 | no_funcs = mfc.nfn; | |
865 | else | |
866 | no_funcs = 1; | |
867 | s->functions = no_funcs; | |
868 | ||
869 | if (old_funcs > no_funcs) | |
870 | pcmcia_card_remove(s, dev); | |
871 | else if (no_funcs > old_funcs) | |
872 | pcmcia_add_device_later(s, 1); | |
873 | } | |
874 | release: | |
875 | release_firmware(fw); | |
876 | ||
877 | return (ret); | |
878 | } | |
879 | ||
880 | #else /* !CONFIG_PCMCIA_LOAD_CIS */ | |
881 | ||
882 | static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
883 | { | |
884 | return -ENODEV; | |
885 | } | |
886 | ||
887 | #endif | |
888 | ||
889 | ||
1ad275e3 DB |
890 | static inline int pcmcia_devmatch(struct pcmcia_device *dev, |
891 | struct pcmcia_device_id *did) | |
892 | { | |
893 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) { | |
894 | if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id)) | |
895 | return 0; | |
896 | } | |
897 | ||
898 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) { | |
899 | if ((!dev->has_card_id) || (dev->card_id != did->card_id)) | |
900 | return 0; | |
901 | } | |
902 | ||
903 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) { | |
904 | if (dev->func != did->function) | |
905 | return 0; | |
906 | } | |
907 | ||
908 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) { | |
909 | if (!dev->prod_id[0]) | |
910 | return 0; | |
911 | if (strcmp(did->prod_id[0], dev->prod_id[0])) | |
912 | return 0; | |
913 | } | |
914 | ||
915 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) { | |
916 | if (!dev->prod_id[1]) | |
917 | return 0; | |
918 | if (strcmp(did->prod_id[1], dev->prod_id[1])) | |
919 | return 0; | |
920 | } | |
921 | ||
922 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) { | |
923 | if (!dev->prod_id[2]) | |
924 | return 0; | |
925 | if (strcmp(did->prod_id[2], dev->prod_id[2])) | |
926 | return 0; | |
927 | } | |
928 | ||
929 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) { | |
930 | if (!dev->prod_id[3]) | |
931 | return 0; | |
932 | if (strcmp(did->prod_id[3], dev->prod_id[3])) | |
933 | return 0; | |
934 | } | |
935 | ||
936 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { | |
1ad275e3 DB |
937 | if (dev->device_no != did->device_no) |
938 | return 0; | |
939 | } | |
940 | ||
941 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { | |
942 | if ((!dev->has_func_id) || (dev->func_id != did->func_id)) | |
943 | return 0; | |
944 | ||
945 | /* if this is a pseudo-multi-function device, | |
946 | * we need explicit matches */ | |
947 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) | |
948 | return 0; | |
949 | if (dev->device_no) | |
950 | return 0; | |
951 | ||
952 | /* also, FUNC_ID matching needs to be activated by userspace | |
953 | * after it has re-checked that there is no possible module | |
954 | * with a prod_id/manf_id/card_id match. | |
955 | */ | |
ac449d6e DB |
956 | ds_dev_dbg(0, &dev->dev, |
957 | "skipping FUNC_ID match until userspace interaction\n"); | |
1ad275e3 DB |
958 | if (!dev->allow_func_id_match) |
959 | return 0; | |
960 | } | |
961 | ||
ea7b3882 | 962 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { |
ac449d6e | 963 | ds_dev_dbg(0, &dev->dev, "device needs a fake CIS\n"); |
daa9517d DB |
964 | if (!dev->socket->fake_cis) |
965 | pcmcia_load_firmware(dev, did->cisfile); | |
966 | ||
967 | if (!dev->socket->fake_cis) | |
ea7b3882 | 968 | return 0; |
ea7b3882 DB |
969 | } |
970 | ||
f602ff7e DB |
971 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { |
972 | int i; | |
973 | for (i=0; i<4; i++) | |
974 | if (dev->prod_id[i]) | |
975 | return 0; | |
976 | if (dev->has_manf_id || dev->has_card_id || dev->has_func_id) | |
977 | return 0; | |
978 | } | |
979 | ||
f3e7a7b6 | 980 | dev_set_drvdata(&dev->dev, did); |
1ad275e3 DB |
981 | |
982 | return 1; | |
983 | } | |
984 | ||
985 | ||
1da177e4 LT |
986 | static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) { |
987 | struct pcmcia_device * p_dev = to_pcmcia_dev(dev); | |
988 | struct pcmcia_driver * p_drv = to_pcmcia_drv(drv); | |
1ad275e3 | 989 | struct pcmcia_device_id *did = p_drv->id_table; |
6179b556 BW |
990 | struct pcmcia_dynid *dynid; |
991 | ||
992 | /* match dynamic devices first */ | |
993 | spin_lock(&p_drv->dynids.lock); | |
994 | list_for_each_entry(dynid, &p_drv->dynids.list, node) { | |
ac449d6e | 995 | ds_dev_dbg(3, dev, "trying to match to %s\n", drv->name); |
6179b556 | 996 | if (pcmcia_devmatch(p_dev, &dynid->id)) { |
ac449d6e | 997 | ds_dev_dbg(0, dev, "matched to %s\n", drv->name); |
6179b556 BW |
998 | spin_unlock(&p_drv->dynids.lock); |
999 | return 1; | |
1000 | } | |
1001 | } | |
1002 | spin_unlock(&p_drv->dynids.lock); | |
1da177e4 | 1003 | |
0e0fad8f | 1004 | #ifdef CONFIG_PCMCIA_IOCTL |
1da177e4 | 1005 | /* matching by cardmgr */ |
d9d9ea01 | 1006 | if (p_dev->cardmgr == p_drv) { |
ac449d6e | 1007 | ds_dev_dbg(0, dev, "cardmgr matched to %s\n", drv->name); |
1da177e4 | 1008 | return 1; |
d9d9ea01 | 1009 | } |
0e0fad8f | 1010 | #endif |
1da177e4 | 1011 | |
1ad275e3 | 1012 | while (did && did->match_flags) { |
ac449d6e | 1013 | ds_dev_dbg(3, dev, "trying to match to %s\n", drv->name); |
d9d9ea01 | 1014 | if (pcmcia_devmatch(p_dev, did)) { |
ac449d6e | 1015 | ds_dev_dbg(0, dev, "matched to %s\n", drv->name); |
1ad275e3 | 1016 | return 1; |
d9d9ea01 | 1017 | } |
1ad275e3 DB |
1018 | did++; |
1019 | } | |
1020 | ||
1da177e4 LT |
1021 | return 0; |
1022 | } | |
1023 | ||
840c2ac5 DB |
1024 | #ifdef CONFIG_HOTPLUG |
1025 | ||
7eff2e7a | 1026 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
1027 | { |
1028 | struct pcmcia_device *p_dev; | |
7eff2e7a | 1029 | int i; |
840c2ac5 DB |
1030 | u32 hash[4] = { 0, 0, 0, 0}; |
1031 | ||
1032 | if (!dev) | |
1033 | return -ENODEV; | |
1034 | ||
1035 | p_dev = to_pcmcia_dev(dev); | |
1036 | ||
1037 | /* calculate hashes */ | |
1038 | for (i=0; i<4; i++) { | |
1039 | if (!p_dev->prod_id[i]) | |
1040 | continue; | |
1041 | hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); | |
1042 | } | |
1043 | ||
7eff2e7a | 1044 | if (add_uevent_var(env, "SOCKET_NO=%u", p_dev->socket->sock)) |
840c2ac5 DB |
1045 | return -ENOMEM; |
1046 | ||
7eff2e7a | 1047 | if (add_uevent_var(env, "DEVICE_NO=%02X", p_dev->device_no)) |
840c2ac5 DB |
1048 | return -ENOMEM; |
1049 | ||
7eff2e7a | 1050 | if (add_uevent_var(env, "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" |
312c004d KS |
1051 | "pa%08Xpb%08Xpc%08Xpd%08X", |
1052 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1053 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1054 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1055 | p_dev->func, | |
1056 | p_dev->device_no, | |
1057 | hash[0], | |
1058 | hash[1], | |
1059 | hash[2], | |
1060 | hash[3])) | |
840c2ac5 DB |
1061 | return -ENOMEM; |
1062 | ||
840c2ac5 DB |
1063 | return 0; |
1064 | } | |
1065 | ||
1066 | #else | |
1067 | ||
7eff2e7a | 1068 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
1069 | { |
1070 | return -ENODEV; | |
1071 | } | |
1072 | ||
1073 | #endif | |
1074 | ||
3f8df781 AS |
1075 | /************************ runtime PM support ***************************/ |
1076 | ||
1077 | static int pcmcia_dev_suspend(struct device *dev, pm_message_t state); | |
1078 | static int pcmcia_dev_resume(struct device *dev); | |
1079 | ||
1080 | static int runtime_suspend(struct device *dev) | |
1081 | { | |
1082 | int rc; | |
1083 | ||
1084 | down(&dev->sem); | |
1085 | rc = pcmcia_dev_suspend(dev, PMSG_SUSPEND); | |
1086 | up(&dev->sem); | |
3f8df781 AS |
1087 | return rc; |
1088 | } | |
1089 | ||
1090 | static void runtime_resume(struct device *dev) | |
1091 | { | |
1092 | int rc; | |
1093 | ||
1094 | down(&dev->sem); | |
1095 | rc = pcmcia_dev_resume(dev); | |
1096 | up(&dev->sem); | |
3f8df781 AS |
1097 | } |
1098 | ||
1da177e4 LT |
1099 | /************************ per-device sysfs output ***************************/ |
1100 | ||
1101 | #define pcmcia_device_attr(field, test, format) \ | |
e404e274 | 1102 | static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1103 | { \ |
1104 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
1105 | return p_dev->test ? sprintf (buf, format, p_dev->field) : -ENODEV; \ | |
1106 | } | |
1107 | ||
1108 | #define pcmcia_device_stringattr(name, field) \ | |
e404e274 | 1109 | static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1110 | { \ |
1111 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
1112 | return p_dev->field ? sprintf (buf, "%s\n", p_dev->field) : -ENODEV; \ | |
1113 | } | |
1114 | ||
1115 | pcmcia_device_attr(func, socket, "0x%02x\n"); | |
1116 | pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); | |
1117 | pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); | |
1118 | pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); | |
1119 | pcmcia_device_stringattr(prod_id1, prod_id[0]); | |
1120 | pcmcia_device_stringattr(prod_id2, prod_id[1]); | |
1121 | pcmcia_device_stringattr(prod_id3, prod_id[2]); | |
1122 | pcmcia_device_stringattr(prod_id4, prod_id[3]); | |
1123 | ||
db1019ca DB |
1124 | |
1125 | static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf) | |
1126 | { | |
1127 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1128 | ||
f6fbe01a | 1129 | if (p_dev->suspended) |
db1019ca DB |
1130 | return sprintf(buf, "off\n"); |
1131 | else | |
1132 | return sprintf(buf, "on\n"); | |
1133 | } | |
1134 | ||
1135 | static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr, | |
1136 | const char *buf, size_t count) | |
1137 | { | |
1138 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1139 | int ret = 0; | |
1140 | ||
1141 | if (!count) | |
1142 | return -EINVAL; | |
1143 | ||
f6fbe01a | 1144 | if ((!p_dev->suspended) && !strncmp(buf, "off", 3)) |
3f8df781 | 1145 | ret = runtime_suspend(dev); |
f6fbe01a | 1146 | else if (p_dev->suspended && !strncmp(buf, "on", 2)) |
3f8df781 | 1147 | runtime_resume(dev); |
db1019ca DB |
1148 | |
1149 | return ret ? ret : count; | |
1150 | } | |
1151 | ||
1152 | ||
3704511b | 1153 | static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) |
3248ff43 DB |
1154 | { |
1155 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1156 | int i; | |
1157 | u32 hash[4] = { 0, 0, 0, 0}; | |
1158 | ||
1159 | /* calculate hashes */ | |
1160 | for (i=0; i<4; i++) { | |
1161 | if (!p_dev->prod_id[i]) | |
1162 | continue; | |
1163 | hash[i] = crc32(0,p_dev->prod_id[i],strlen(p_dev->prod_id[i])); | |
1164 | } | |
1165 | return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
1166 | "pa%08Xpb%08Xpc%08Xpd%08X\n", | |
1167 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1168 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1169 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1170 | p_dev->func, p_dev->device_no, | |
1171 | hash[0], hash[1], hash[2], hash[3]); | |
1172 | } | |
a5b55778 | 1173 | |
3248ff43 DB |
1174 | static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, |
1175 | struct device_attribute *attr, const char *buf, size_t count) | |
a5b55778 DB |
1176 | { |
1177 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
f901b8c4 | 1178 | int ret; |
db1019ca DB |
1179 | |
1180 | if (!count) | |
1181 | return -EINVAL; | |
a5b55778 | 1182 | |
7fe908dd | 1183 | mutex_lock(&p_dev->socket->skt_mutex); |
a5b55778 | 1184 | p_dev->allow_func_id_match = 1; |
7fe908dd | 1185 | mutex_unlock(&p_dev->socket->skt_mutex); |
a5b55778 | 1186 | |
f901b8c4 DB |
1187 | ret = bus_rescan_devices(&pcmcia_bus_type); |
1188 | if (ret) | |
1189 | printk(KERN_INFO "pcmcia: bus_rescan_devices failed after " | |
1190 | "allowing func_id matches\n"); | |
a5b55778 DB |
1191 | |
1192 | return count; | |
1193 | } | |
1194 | ||
1da177e4 LT |
1195 | static struct device_attribute pcmcia_dev_attrs[] = { |
1196 | __ATTR(function, 0444, func_show, NULL), | |
db1019ca | 1197 | __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state), |
1da177e4 LT |
1198 | __ATTR_RO(func_id), |
1199 | __ATTR_RO(manf_id), | |
1200 | __ATTR_RO(card_id), | |
1201 | __ATTR_RO(prod_id1), | |
1202 | __ATTR_RO(prod_id2), | |
1203 | __ATTR_RO(prod_id3), | |
1204 | __ATTR_RO(prod_id4), | |
3248ff43 | 1205 | __ATTR_RO(modalias), |
a5b55778 | 1206 | __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), |
1da177e4 LT |
1207 | __ATTR_NULL, |
1208 | }; | |
1209 | ||
8e9e793d DB |
1210 | /* PM support, also needed for reset */ |
1211 | ||
1212 | static int pcmcia_dev_suspend(struct device * dev, pm_message_t state) | |
1213 | { | |
1214 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1215 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1216 | int ret = 0; |
8e9e793d | 1217 | |
d6b4fa6d DB |
1218 | if (p_dev->suspended) |
1219 | return 0; | |
1220 | ||
ac449d6e | 1221 | ds_dev_dbg(2, dev, "suspending\n"); |
d9d9ea01 | 1222 | |
8e9e793d DB |
1223 | if (dev->driver) |
1224 | p_drv = to_pcmcia_drv(dev->driver); | |
1225 | ||
e2d40963 DB |
1226 | if (!p_drv) |
1227 | goto out; | |
1228 | ||
1229 | if (p_drv->suspend) { | |
8661bb5b | 1230 | ret = p_drv->suspend(p_dev); |
d9d9ea01 | 1231 | if (ret) { |
ac449d6e DB |
1232 | dev_printk(KERN_ERR, dev, |
1233 | "pcmcia: device %s (driver %s) did " | |
1234 | "not want to go to sleep (%d)\n", | |
1235 | p_dev->devname, p_drv->drv.name, ret); | |
f6fbe01a | 1236 | goto out; |
d9d9ea01 | 1237 | } |
8661bb5b | 1238 | } |
8e9e793d | 1239 | |
d9d9ea01 | 1240 | if (p_dev->device_no == p_dev->func) { |
ac449d6e | 1241 | ds_dev_dbg(2, dev, "releasing configuration\n"); |
e2d40963 | 1242 | pcmcia_release_configuration(p_dev); |
d9d9ea01 | 1243 | } |
e2d40963 | 1244 | |
f6fbe01a DB |
1245 | out: |
1246 | if (!ret) | |
1247 | p_dev->suspended = 1; | |
1248 | return ret; | |
8e9e793d DB |
1249 | } |
1250 | ||
1251 | ||
1252 | static int pcmcia_dev_resume(struct device * dev) | |
1253 | { | |
1254 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1255 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1256 | int ret = 0; |
8e9e793d | 1257 | |
d6b4fa6d DB |
1258 | if (!p_dev->suspended) |
1259 | return 0; | |
1260 | ||
ac449d6e | 1261 | ds_dev_dbg(2, dev, "resuming\n"); |
d9d9ea01 | 1262 | |
8e9e793d DB |
1263 | if (dev->driver) |
1264 | p_drv = to_pcmcia_drv(dev->driver); | |
1265 | ||
e2d40963 DB |
1266 | if (!p_drv) |
1267 | goto out; | |
1268 | ||
1269 | if (p_dev->device_no == p_dev->func) { | |
ac449d6e | 1270 | ds_dev_dbg(2, dev, "requesting configuration\n"); |
e2d40963 DB |
1271 | ret = pcmcia_request_configuration(p_dev, &p_dev->conf); |
1272 | if (ret) | |
1273 | goto out; | |
8661bb5b | 1274 | } |
8e9e793d | 1275 | |
e2d40963 DB |
1276 | if (p_drv->resume) |
1277 | ret = p_drv->resume(p_dev); | |
1278 | ||
f6fbe01a DB |
1279 | out: |
1280 | if (!ret) | |
1281 | p_dev->suspended = 0; | |
1282 | return ret; | |
8e9e793d DB |
1283 | } |
1284 | ||
1285 | ||
1286 | static int pcmcia_bus_suspend_callback(struct device *dev, void * _data) | |
1287 | { | |
1288 | struct pcmcia_socket *skt = _data; | |
1289 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1290 | ||
3f8df781 | 1291 | if (p_dev->socket != skt || p_dev->suspended) |
8e9e793d DB |
1292 | return 0; |
1293 | ||
3f8df781 | 1294 | return runtime_suspend(dev); |
8e9e793d DB |
1295 | } |
1296 | ||
1297 | static int pcmcia_bus_resume_callback(struct device *dev, void * _data) | |
1298 | { | |
1299 | struct pcmcia_socket *skt = _data; | |
1300 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1301 | ||
3f8df781 | 1302 | if (p_dev->socket != skt || !p_dev->suspended) |
8e9e793d DB |
1303 | return 0; |
1304 | ||
3f8df781 | 1305 | runtime_resume(dev); |
8e9e793d DB |
1306 | |
1307 | return 0; | |
1308 | } | |
1309 | ||
1310 | static int pcmcia_bus_resume(struct pcmcia_socket *skt) | |
1311 | { | |
ac449d6e | 1312 | ds_dev_dbg(2, &skt->dev, "resuming socket %d\n", skt->sock); |
8e9e793d DB |
1313 | bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback); |
1314 | return 0; | |
1315 | } | |
1316 | ||
1317 | static int pcmcia_bus_suspend(struct pcmcia_socket *skt) | |
1318 | { | |
ac449d6e | 1319 | ds_dev_dbg(2, &skt->dev, "suspending socket %d\n", skt->sock); |
8e9e793d DB |
1320 | if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt, |
1321 | pcmcia_bus_suspend_callback)) { | |
1322 | pcmcia_bus_resume(skt); | |
1323 | return -EIO; | |
1324 | } | |
1325 | return 0; | |
1326 | } | |
1327 | ||
1da177e4 | 1328 | |
1da177e4 LT |
1329 | /*====================================================================== |
1330 | ||
1331 | The card status event handler. | |
1332 | ||
1333 | ======================================================================*/ | |
1334 | ||
1da177e4 LT |
1335 | /* Normally, the event is passed to individual drivers after |
1336 | * informing userspace. Only for CS_EVENT_CARD_REMOVAL this | |
1337 | * is inversed to maintain historic compatibility. | |
1338 | */ | |
1339 | ||
1340 | static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) | |
1341 | { | |
dc109497 | 1342 | struct pcmcia_socket *s = pcmcia_get_socket(skt); |
1da177e4 | 1343 | |
1617406a | 1344 | if (!s) { |
ac449d6e DB |
1345 | dev_printk(KERN_ERR, &skt->dev, |
1346 | "PCMCIA obtaining reference to socket " \ | |
1347 | "failed, event 0x%x lost!\n", event); | |
1617406a FM |
1348 | return -ENODEV; |
1349 | } | |
1350 | ||
ac449d6e DB |
1351 | ds_dev_dbg(1, &skt->dev, "ds_event(0x%06x, %d, 0x%p)\n", |
1352 | event, priority, skt); | |
1da177e4 | 1353 | |
f8cfa618 | 1354 | switch (event) { |
1da177e4 | 1355 | case CS_EVENT_CARD_REMOVAL: |
b5e43913 | 1356 | s->pcmcia_state.present = 0; |
d6ff5a85 | 1357 | pcmcia_card_remove(skt, NULL); |
dc109497 | 1358 | handle_event(skt, event); |
1da177e4 | 1359 | break; |
f8cfa618 | 1360 | |
1da177e4 | 1361 | case CS_EVENT_CARD_INSERTION: |
b5e43913 | 1362 | s->pcmcia_state.present = 1; |
1da177e4 | 1363 | pcmcia_card_add(skt); |
dc109497 | 1364 | handle_event(skt, event); |
1da177e4 LT |
1365 | break; |
1366 | ||
1367 | case CS_EVENT_EJECTION_REQUEST: | |
1da177e4 LT |
1368 | break; |
1369 | ||
8e9e793d DB |
1370 | case CS_EVENT_PM_SUSPEND: |
1371 | case CS_EVENT_PM_RESUME: | |
1372 | case CS_EVENT_RESET_PHYSICAL: | |
1373 | case CS_EVENT_CARD_RESET: | |
1da177e4 | 1374 | default: |
dc109497 | 1375 | handle_event(skt, event); |
1da177e4 LT |
1376 | break; |
1377 | } | |
1378 | ||
dc109497 DB |
1379 | pcmcia_put_socket(s); |
1380 | ||
1da177e4 LT |
1381 | return 0; |
1382 | } /* ds_event */ | |
1383 | ||
1384 | ||
9940ec36 DB |
1385 | struct pcmcia_device * pcmcia_dev_present(struct pcmcia_device *_p_dev) |
1386 | { | |
1387 | struct pcmcia_device *p_dev; | |
1388 | struct pcmcia_device *ret = NULL; | |
1389 | ||
1390 | p_dev = pcmcia_get_dev(_p_dev); | |
1391 | if (!p_dev) | |
1392 | return NULL; | |
1393 | ||
1394 | if (!p_dev->socket->pcmcia_state.present) | |
1395 | goto out; | |
1396 | ||
1397 | if (p_dev->_removed) | |
1398 | goto out; | |
1399 | ||
1400 | if (p_dev->suspended) | |
1401 | goto out; | |
1402 | ||
1403 | ret = p_dev; | |
1404 | out: | |
1405 | pcmcia_put_dev(p_dev); | |
1406 | return ret; | |
1407 | } | |
1408 | EXPORT_SYMBOL(pcmcia_dev_present); | |
1409 | ||
1410 | ||
90c6cdd1 DB |
1411 | static struct pcmcia_callback pcmcia_bus_callback = { |
1412 | .owner = THIS_MODULE, | |
1413 | .event = ds_event, | |
1414 | .requery = pcmcia_bus_rescan, | |
8e9e793d DB |
1415 | .suspend = pcmcia_bus_suspend, |
1416 | .resume = pcmcia_bus_resume, | |
90c6cdd1 DB |
1417 | }; |
1418 | ||
87373318 | 1419 | static int __devinit pcmcia_bus_add_socket(struct device *dev, |
d8539d81 | 1420 | struct class_interface *class_intf) |
1da177e4 | 1421 | { |
87373318 | 1422 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 LT |
1423 | int ret; |
1424 | ||
dc109497 DB |
1425 | socket = pcmcia_get_socket(socket); |
1426 | if (!socket) { | |
ac449d6e DB |
1427 | dev_printk(KERN_ERR, dev, |
1428 | "PCMCIA obtaining reference to socket failed\n"); | |
1da177e4 LT |
1429 | return -ENODEV; |
1430 | } | |
1431 | ||
1da177e4 LT |
1432 | /* |
1433 | * Ugly. But we want to wait for the socket threads to have started up. | |
1434 | * We really should let the drivers themselves drive some of this.. | |
1435 | */ | |
1436 | msleep(250); | |
1437 | ||
e7a480d2 | 1438 | #ifdef CONFIG_PCMCIA_IOCTL |
dc109497 | 1439 | init_waitqueue_head(&socket->queue); |
e7a480d2 | 1440 | #endif |
dc109497 | 1441 | INIT_LIST_HEAD(&socket->devices_list); |
4796b71f | 1442 | INIT_WORK(&socket->device_add, pcmcia_delayed_add_device); |
dc109497 DB |
1443 | memset(&socket->pcmcia_state, 0, sizeof(u8)); |
1444 | socket->device_count = 0; | |
1da177e4 | 1445 | |
90c6cdd1 | 1446 | ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback); |
1da177e4 | 1447 | if (ret) { |
ac449d6e | 1448 | dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n"); |
dc109497 | 1449 | pcmcia_put_socket(socket); |
1da177e4 LT |
1450 | return (ret); |
1451 | } | |
1452 | ||
1453 | return 0; | |
1454 | } | |
1455 | ||
87373318 | 1456 | static void pcmcia_bus_remove_socket(struct device *dev, |
d8539d81 | 1457 | struct class_interface *class_intf) |
1da177e4 | 1458 | { |
87373318 | 1459 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 | 1460 | |
dc109497 | 1461 | if (!socket) |
1da177e4 LT |
1462 | return; |
1463 | ||
dc109497 | 1464 | socket->pcmcia_state.dead = 1; |
1da177e4 LT |
1465 | pccard_register_pcmcia(socket, NULL); |
1466 | ||
dfbc9e9d | 1467 | /* unregister any unbound devices */ |
8e4d9dcb | 1468 | mutex_lock(&socket->skt_mutex); |
dfbc9e9d | 1469 | pcmcia_card_remove(socket, NULL); |
8e4d9dcb | 1470 | mutex_unlock(&socket->skt_mutex); |
dfbc9e9d | 1471 | |
dc109497 | 1472 | pcmcia_put_socket(socket); |
1da177e4 LT |
1473 | |
1474 | return; | |
1475 | } | |
1476 | ||
1477 | ||
1478 | /* the pcmcia_bus_interface is used to handle pcmcia socket devices */ | |
ed49f5d0 | 1479 | static struct class_interface pcmcia_bus_interface __refdata = { |
1da177e4 | 1480 | .class = &pcmcia_socket_class, |
87373318 GKH |
1481 | .add_dev = &pcmcia_bus_add_socket, |
1482 | .remove_dev = &pcmcia_bus_remove_socket, | |
1da177e4 LT |
1483 | }; |
1484 | ||
1485 | ||
e7a480d2 | 1486 | struct bus_type pcmcia_bus_type = { |
1da177e4 | 1487 | .name = "pcmcia", |
312c004d | 1488 | .uevent = pcmcia_bus_uevent, |
1da177e4 LT |
1489 | .match = pcmcia_bus_match, |
1490 | .dev_attrs = pcmcia_dev_attrs, | |
1d0baa3a RK |
1491 | .probe = pcmcia_device_probe, |
1492 | .remove = pcmcia_device_remove, | |
8e9e793d DB |
1493 | .suspend = pcmcia_dev_suspend, |
1494 | .resume = pcmcia_dev_resume, | |
1da177e4 | 1495 | }; |
1da177e4 LT |
1496 | |
1497 | ||
1498 | static int __init init_pcmcia_bus(void) | |
1499 | { | |
ace7d477 RD |
1500 | int ret; |
1501 | ||
1da177e4 LT |
1502 | spin_lock_init(&pcmcia_dev_list_lock); |
1503 | ||
ace7d477 RD |
1504 | ret = bus_register(&pcmcia_bus_type); |
1505 | if (ret < 0) { | |
1506 | printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret); | |
1507 | return ret; | |
1508 | } | |
1509 | ret = class_interface_register(&pcmcia_bus_interface); | |
1510 | if (ret < 0) { | |
1511 | printk(KERN_WARNING | |
1512 | "pcmcia: class_interface_register error: %d\n", ret); | |
1513 | bus_unregister(&pcmcia_bus_type); | |
1514 | return ret; | |
1515 | } | |
1da177e4 | 1516 | |
e7a480d2 | 1517 | pcmcia_setup_ioctl(); |
1da177e4 LT |
1518 | |
1519 | return 0; | |
1520 | } | |
1521 | fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that | |
1522 | * pcmcia_socket_class is already registered */ | |
1523 | ||
1524 | ||
1525 | static void __exit exit_pcmcia_bus(void) | |
1526 | { | |
e7a480d2 | 1527 | pcmcia_cleanup_ioctl(); |
1da177e4 | 1528 | |
e7a480d2 | 1529 | class_interface_unregister(&pcmcia_bus_interface); |
1da177e4 LT |
1530 | |
1531 | bus_unregister(&pcmcia_bus_type); | |
1532 | } | |
1533 | module_exit(exit_pcmcia_bus); | |
1534 | ||
1535 | ||
1da177e4 | 1536 | MODULE_ALIAS("ds"); |