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" | |
e7a480d2 | 35 | #include "ds_internal.h" |
1da177e4 LT |
36 | |
37 | /*====================================================================*/ | |
38 | ||
39 | /* Module parameters */ | |
40 | ||
41 | MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>"); | |
42 | MODULE_DESCRIPTION("PCMCIA Driver Services"); | |
43 | MODULE_LICENSE("GPL"); | |
44 | ||
7d16b658 | 45 | #ifdef CONFIG_PCMCIA_DEBUG |
e7a480d2 | 46 | int ds_pc_debug; |
1da177e4 LT |
47 | |
48 | module_param_named(pc_debug, ds_pc_debug, int, 0644); | |
49 | ||
50 | #define ds_dbg(lvl, fmt, arg...) do { \ | |
ac449d6e | 51 | if (ds_pc_debug > (lvl)) \ |
1da177e4 LT |
52 | printk(KERN_DEBUG "ds: " fmt , ## arg); \ |
53 | } while (0) | |
ac449d6e DB |
54 | #define ds_dev_dbg(lvl, dev, fmt, arg...) do { \ |
55 | if (ds_pc_debug > (lvl)) \ | |
56 | dev_printk(KERN_DEBUG, dev, "ds: " fmt , ## arg); \ | |
57 | } while (0) | |
1da177e4 LT |
58 | #else |
59 | #define ds_dbg(lvl, fmt, arg...) do { } while (0) | |
ac449d6e | 60 | #define ds_dev_dbg(lvl, dev, fmt, arg...) do { } while (0) |
1da177e4 LT |
61 | #endif |
62 | ||
e7a480d2 | 63 | spinlock_t pcmcia_dev_list_lock; |
1da177e4 | 64 | |
1da177e4 LT |
65 | /*====================================================================*/ |
66 | ||
67 | /* code which was in cs.c before */ | |
68 | ||
69 | /* String tables for error messages */ | |
70 | ||
71 | typedef struct lookup_t { | |
79ba6757 DB |
72 | const int key; |
73 | const char *msg; | |
1da177e4 LT |
74 | } lookup_t; |
75 | ||
76 | static const lookup_t error_table[] = { | |
610e2374 | 77 | { 0, "Operation succeeded" }, |
d8b0a49d | 78 | { -EIO, "Input/Output error" }, |
3939c1ef | 79 | { -ENODEV, "No card present" }, |
de6405e9 | 80 | { -EINVAL, "Bad parameter" }, |
943f70f1 | 81 | { -EACCES, "Configuration locked" }, |
610e2374 | 82 | { -EBUSY, "Resource in use" }, |
635d19be | 83 | { -ENOSPC, "No more items" }, |
610e2374 | 84 | { -ENOMEM, "Out of resource" }, |
1da177e4 LT |
85 | }; |
86 | ||
87 | ||
88 | static const lookup_t service_table[] = { | |
89 | { AccessConfigurationRegister, "AccessConfigurationRegister" }, | |
90 | { AddSocketServices, "AddSocketServices" }, | |
91 | { AdjustResourceInfo, "AdjustResourceInfo" }, | |
92 | { CheckEraseQueue, "CheckEraseQueue" }, | |
93 | { CloseMemory, "CloseMemory" }, | |
94 | { DeregisterClient, "DeregisterClient" }, | |
95 | { DeregisterEraseQueue, "DeregisterEraseQueue" }, | |
96 | { GetCardServicesInfo, "GetCardServicesInfo" }, | |
97 | { GetClientInfo, "GetClientInfo" }, | |
98 | { GetConfigurationInfo, "GetConfigurationInfo" }, | |
99 | { GetEventMask, "GetEventMask" }, | |
100 | { GetFirstClient, "GetFirstClient" }, | |
101 | { GetFirstRegion, "GetFirstRegion" }, | |
102 | { GetFirstTuple, "GetFirstTuple" }, | |
103 | { GetNextClient, "GetNextClient" }, | |
104 | { GetNextRegion, "GetNextRegion" }, | |
105 | { GetNextTuple, "GetNextTuple" }, | |
106 | { GetStatus, "GetStatus" }, | |
107 | { GetTupleData, "GetTupleData" }, | |
108 | { MapMemPage, "MapMemPage" }, | |
109 | { ModifyConfiguration, "ModifyConfiguration" }, | |
110 | { ModifyWindow, "ModifyWindow" }, | |
111 | { OpenMemory, "OpenMemory" }, | |
112 | { ParseTuple, "ParseTuple" }, | |
113 | { ReadMemory, "ReadMemory" }, | |
114 | { RegisterClient, "RegisterClient" }, | |
115 | { RegisterEraseQueue, "RegisterEraseQueue" }, | |
116 | { RegisterMTD, "RegisterMTD" }, | |
117 | { ReleaseConfiguration, "ReleaseConfiguration" }, | |
118 | { ReleaseIO, "ReleaseIO" }, | |
119 | { ReleaseIRQ, "ReleaseIRQ" }, | |
120 | { ReleaseWindow, "ReleaseWindow" }, | |
121 | { RequestConfiguration, "RequestConfiguration" }, | |
122 | { RequestIO, "RequestIO" }, | |
123 | { RequestIRQ, "RequestIRQ" }, | |
124 | { RequestSocketMask, "RequestSocketMask" }, | |
125 | { RequestWindow, "RequestWindow" }, | |
126 | { ResetCard, "ResetCard" }, | |
127 | { SetEventMask, "SetEventMask" }, | |
128 | { ValidateCIS, "ValidateCIS" }, | |
129 | { WriteMemory, "WriteMemory" }, | |
130 | { BindDevice, "BindDevice" }, | |
131 | { BindMTD, "BindMTD" }, | |
132 | { ReportError, "ReportError" }, | |
133 | { SuspendCard, "SuspendCard" }, | |
134 | { ResumeCard, "ResumeCard" }, | |
135 | { EjectCard, "EjectCard" }, | |
136 | { InsertCard, "InsertCard" }, | |
137 | { ReplaceCIS, "ReplaceCIS" } | |
138 | }; | |
139 | ||
79ba6757 | 140 | const char *pcmcia_error_func(int func) |
1da177e4 LT |
141 | { |
142 | int i; | |
1da177e4 LT |
143 | |
144 | for (i = 0; i < ARRAY_SIZE(service_table); i++) | |
79ba6757 DB |
145 | if (service_table[i].key == func) |
146 | return service_table[i].msg; | |
1da177e4 | 147 | |
79ba6757 DB |
148 | return "Unknown service number"; |
149 | } | |
150 | EXPORT_SYMBOL(pcmcia_error_func); | |
1da177e4 | 151 | |
79ba6757 DB |
152 | const char *pcmcia_error_ret(int ret) |
153 | { | |
154 | int i; | |
1da177e4 | 155 | |
79ba6757 DB |
156 | for (i = 0; i < ARRAY_SIZE(error_table); i++) |
157 | if (error_table[i].key == ret) | |
158 | return error_table[i].msg; | |
159 | ||
160 | return "unknown"; | |
161 | } | |
162 | EXPORT_SYMBOL(pcmcia_error_ret); | |
1da177e4 LT |
163 | |
164 | /*======================================================================*/ | |
165 | ||
1da177e4 | 166 | |
23a83bfe DB |
167 | |
168 | static void pcmcia_check_driver(struct pcmcia_driver *p_drv) | |
169 | { | |
170 | struct pcmcia_device_id *did = p_drv->id_table; | |
171 | unsigned int i; | |
172 | u32 hash; | |
173 | ||
f8cfa618 | 174 | if (!p_drv->probe || !p_drv->remove) |
ba5bb6b5 PR |
175 | printk(KERN_DEBUG "pcmcia: %s lacks a requisite callback " |
176 | "function\n", p_drv->drv.name); | |
1e212f36 | 177 | |
23a83bfe DB |
178 | while (did && did->match_flags) { |
179 | for (i=0; i<4; i++) { | |
180 | if (!did->prod_id[i]) | |
181 | continue; | |
182 | ||
183 | hash = crc32(0, did->prod_id[i], strlen(did->prod_id[i])); | |
184 | if (hash == did->prod_id_hash[i]) | |
185 | continue; | |
186 | ||
187 | printk(KERN_DEBUG "pcmcia: %s: invalid hash for " | |
188 | "product string \"%s\": is 0x%x, should " | |
189 | "be 0x%x\n", p_drv->drv.name, did->prod_id[i], | |
190 | did->prod_id_hash[i], hash); | |
5085cb26 DB |
191 | printk(KERN_DEBUG "pcmcia: see " |
192 | "Documentation/pcmcia/devicetable.txt for " | |
193 | "details\n"); | |
23a83bfe DB |
194 | } |
195 | did++; | |
196 | } | |
197 | ||
198 | return; | |
199 | } | |
200 | ||
daa9517d | 201 | |
1da177e4 LT |
202 | /*======================================================================*/ |
203 | ||
1da177e4 | 204 | |
6179b556 BW |
205 | struct pcmcia_dynid { |
206 | struct list_head node; | |
207 | struct pcmcia_device_id id; | |
208 | }; | |
209 | ||
210 | /** | |
211 | * pcmcia_store_new_id - add a new PCMCIA device ID to this driver and re-probe devices | |
212 | * @driver: target device driver | |
213 | * @buf: buffer for scanning device ID data | |
214 | * @count: input size | |
215 | * | |
216 | * Adds a new dynamic PCMCIA device ID to this driver, | |
217 | * and causes the driver to probe for all devices again. | |
218 | */ | |
219 | static ssize_t | |
220 | pcmcia_store_new_id(struct device_driver *driver, const char *buf, size_t count) | |
221 | { | |
222 | struct pcmcia_dynid *dynid; | |
223 | struct pcmcia_driver *pdrv = to_pcmcia_drv(driver); | |
224 | __u16 match_flags, manf_id, card_id; | |
225 | __u8 func_id, function, device_no; | |
226 | __u32 prod_id_hash[4] = {0, 0, 0, 0}; | |
227 | int fields=0; | |
228 | int retval = 0; | |
229 | ||
230 | fields = sscanf(buf, "%hx %hx %hx %hhx %hhx %hhx %x %x %x %x", | |
231 | &match_flags, &manf_id, &card_id, &func_id, &function, &device_no, | |
232 | &prod_id_hash[0], &prod_id_hash[1], &prod_id_hash[2], &prod_id_hash[3]); | |
233 | if (fields < 6) | |
234 | return -EINVAL; | |
235 | ||
236 | dynid = kzalloc(sizeof(struct pcmcia_dynid), GFP_KERNEL); | |
237 | if (!dynid) | |
238 | return -ENOMEM; | |
239 | ||
240 | INIT_LIST_HEAD(&dynid->node); | |
241 | dynid->id.match_flags = match_flags; | |
242 | dynid->id.manf_id = manf_id; | |
243 | dynid->id.card_id = card_id; | |
244 | dynid->id.func_id = func_id; | |
245 | dynid->id.function = function; | |
246 | dynid->id.device_no = device_no; | |
247 | memcpy(dynid->id.prod_id_hash, prod_id_hash, sizeof(__u32) * 4); | |
248 | ||
249 | spin_lock(&pdrv->dynids.lock); | |
250 | list_add_tail(&pdrv->dynids.list, &dynid->node); | |
251 | spin_unlock(&pdrv->dynids.lock); | |
252 | ||
253 | if (get_driver(&pdrv->drv)) { | |
254 | retval = driver_attach(&pdrv->drv); | |
255 | put_driver(&pdrv->drv); | |
256 | } | |
257 | ||
258 | if (retval) | |
259 | return retval; | |
260 | return count; | |
261 | } | |
262 | static DRIVER_ATTR(new_id, S_IWUSR, NULL, pcmcia_store_new_id); | |
263 | ||
264 | static void | |
265 | pcmcia_free_dynids(struct pcmcia_driver *drv) | |
266 | { | |
267 | struct pcmcia_dynid *dynid, *n; | |
268 | ||
269 | spin_lock(&drv->dynids.lock); | |
270 | list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) { | |
271 | list_del(&dynid->node); | |
272 | kfree(dynid); | |
273 | } | |
274 | spin_unlock(&drv->dynids.lock); | |
275 | } | |
276 | ||
277 | static int | |
278 | pcmcia_create_newid_file(struct pcmcia_driver *drv) | |
279 | { | |
280 | int error = 0; | |
281 | if (drv->probe != NULL) | |
2344c6de | 282 | error = driver_create_file(&drv->drv, &driver_attr_new_id); |
6179b556 BW |
283 | return error; |
284 | } | |
285 | ||
286 | ||
1da177e4 LT |
287 | /** |
288 | * pcmcia_register_driver - register a PCMCIA driver with the bus core | |
78187865 | 289 | * @driver: the &driver being registered |
1da177e4 LT |
290 | * |
291 | * Registers a PCMCIA driver with the PCMCIA bus core. | |
292 | */ | |
1da177e4 LT |
293 | int pcmcia_register_driver(struct pcmcia_driver *driver) |
294 | { | |
6179b556 BW |
295 | int error; |
296 | ||
1da177e4 LT |
297 | if (!driver) |
298 | return -EINVAL; | |
299 | ||
23a83bfe DB |
300 | pcmcia_check_driver(driver); |
301 | ||
1da177e4 LT |
302 | /* initialize common fields */ |
303 | driver->drv.bus = &pcmcia_bus_type; | |
304 | driver->drv.owner = driver->owner; | |
6179b556 BW |
305 | spin_lock_init(&driver->dynids.lock); |
306 | INIT_LIST_HEAD(&driver->dynids.list); | |
1da177e4 | 307 | |
d9d9ea01 DB |
308 | ds_dbg(3, "registering driver %s\n", driver->drv.name); |
309 | ||
6179b556 BW |
310 | error = driver_register(&driver->drv); |
311 | if (error < 0) | |
312 | return error; | |
313 | ||
314 | error = pcmcia_create_newid_file(driver); | |
315 | if (error) | |
316 | driver_unregister(&driver->drv); | |
317 | ||
318 | return error; | |
1da177e4 LT |
319 | } |
320 | EXPORT_SYMBOL(pcmcia_register_driver); | |
321 | ||
322 | /** | |
323 | * pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core | |
78187865 | 324 | * @driver: the &driver being unregistered |
1da177e4 LT |
325 | */ |
326 | void pcmcia_unregister_driver(struct pcmcia_driver *driver) | |
327 | { | |
d9d9ea01 | 328 | ds_dbg(3, "unregistering driver %s\n", driver->drv.name); |
1da177e4 | 329 | driver_unregister(&driver->drv); |
6179b556 | 330 | pcmcia_free_dynids(driver); |
1da177e4 LT |
331 | } |
332 | EXPORT_SYMBOL(pcmcia_unregister_driver); | |
333 | ||
1da177e4 LT |
334 | |
335 | /* pcmcia_device handling */ | |
336 | ||
e7a480d2 | 337 | struct pcmcia_device * pcmcia_get_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
338 | { |
339 | struct device *tmp_dev; | |
340 | tmp_dev = get_device(&p_dev->dev); | |
341 | if (!tmp_dev) | |
342 | return NULL; | |
343 | return to_pcmcia_dev(tmp_dev); | |
344 | } | |
345 | ||
e7a480d2 | 346 | void pcmcia_put_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
347 | { |
348 | if (p_dev) | |
349 | put_device(&p_dev->dev); | |
350 | } | |
351 | ||
360b65b9 DB |
352 | static void pcmcia_release_function(struct kref *ref) |
353 | { | |
354 | struct config_t *c = container_of(ref, struct config_t, ref); | |
d9d9ea01 | 355 | ds_dbg(1, "releasing config_t\n"); |
360b65b9 DB |
356 | kfree(c); |
357 | } | |
358 | ||
1da177e4 LT |
359 | static void pcmcia_release_dev(struct device *dev) |
360 | { | |
361 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
ac449d6e | 362 | ds_dev_dbg(1, dev, "releasing device\n"); |
dc109497 | 363 | pcmcia_put_socket(p_dev->socket); |
bd65a685 | 364 | kfree(p_dev->devname); |
360b65b9 | 365 | kref_put(&p_dev->function_config->ref, pcmcia_release_function); |
1da177e4 LT |
366 | kfree(p_dev); |
367 | } | |
368 | ||
1d2c9042 | 369 | static void pcmcia_add_device_later(struct pcmcia_socket *s, int mfc) |
82d56e6d DB |
370 | { |
371 | if (!s->pcmcia_state.device_add_pending) { | |
ac449d6e | 372 | ds_dev_dbg(1, &s->dev, "scheduling to add %s secondary" |
d9d9ea01 | 373 | " device to %d\n", mfc ? "mfc" : "pfc", s->sock); |
82d56e6d | 374 | s->pcmcia_state.device_add_pending = 1; |
1d2c9042 | 375 | s->pcmcia_state.mfc_pfc = mfc; |
82d56e6d DB |
376 | schedule_work(&s->device_add); |
377 | } | |
378 | return; | |
379 | } | |
1da177e4 LT |
380 | |
381 | static int pcmcia_device_probe(struct device * dev) | |
382 | { | |
383 | struct pcmcia_device *p_dev; | |
384 | struct pcmcia_driver *p_drv; | |
82d56e6d | 385 | struct pcmcia_device_id *did; |
f8cfa618 | 386 | struct pcmcia_socket *s; |
af2b3b50 | 387 | cistpl_config_t cis_config; |
1da177e4 LT |
388 | int ret = 0; |
389 | ||
390 | dev = get_device(dev); | |
391 | if (!dev) | |
392 | return -ENODEV; | |
393 | ||
394 | p_dev = to_pcmcia_dev(dev); | |
395 | p_drv = to_pcmcia_drv(dev->driver); | |
f8cfa618 | 396 | s = p_dev->socket; |
1da177e4 | 397 | |
ac449d6e | 398 | ds_dev_dbg(1, dev, "trying to bind to %s\n", p_drv->drv.name); |
d9d9ea01 | 399 | |
360b65b9 DB |
400 | if ((!p_drv->probe) || (!p_dev->function_config) || |
401 | (!try_module_get(p_drv->owner))) { | |
1da177e4 LT |
402 | ret = -EINVAL; |
403 | goto put_dev; | |
404 | } | |
405 | ||
af2b3b50 DB |
406 | /* set up some more device information */ |
407 | ret = pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_CONFIG, | |
408 | &cis_config); | |
409 | if (!ret) { | |
410 | p_dev->conf.ConfigBase = cis_config.base; | |
411 | p_dev->conf.Present = cis_config.rmask[0]; | |
412 | } else { | |
ac449d6e DB |
413 | dev_printk(KERN_INFO, dev, |
414 | "pcmcia: could not parse base and rmask0 of CIS\n"); | |
af2b3b50 DB |
415 | p_dev->conf.ConfigBase = 0; |
416 | p_dev->conf.Present = 0; | |
417 | } | |
418 | ||
f8cfa618 | 419 | ret = p_drv->probe(p_dev); |
d9d9ea01 | 420 | if (ret) { |
ac449d6e DB |
421 | ds_dev_dbg(1, dev, "binding to %s failed with %d\n", |
422 | p_drv->drv.name, ret); | |
82d56e6d | 423 | goto put_module; |
d9d9ea01 | 424 | } |
82d56e6d DB |
425 | |
426 | /* handle pseudo multifunction devices: | |
427 | * there are at most two pseudo multifunction devices. | |
428 | * if we're matching against the first, schedule a | |
429 | * call which will then check whether there are two | |
430 | * pseudo devices, and if not, add the second one. | |
431 | */ | |
80a55e92 | 432 | did = p_dev->dev.driver_data; |
4ceadbf5 | 433 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
82d56e6d | 434 | (p_dev->socket->device_count == 1) && (p_dev->device_no == 0)) |
1d2c9042 | 435 | pcmcia_add_device_later(p_dev->socket, 0); |
f8cfa618 DB |
436 | |
437 | put_module: | |
1da177e4 LT |
438 | if (ret) |
439 | module_put(p_drv->owner); | |
440 | put_dev: | |
f8cfa618 | 441 | if (ret) |
1da177e4 LT |
442 | put_device(dev); |
443 | return (ret); | |
444 | } | |
445 | ||
446 | ||
d6ff5a85 DB |
447 | /* |
448 | * Removes a PCMCIA card from the device tree and socket list. | |
449 | */ | |
450 | static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *leftover) | |
451 | { | |
452 | struct pcmcia_device *p_dev; | |
453 | struct pcmcia_device *tmp; | |
454 | unsigned long flags; | |
455 | ||
ac449d6e DB |
456 | ds_dev_dbg(2, leftover ? &leftover->dev : &s->dev, |
457 | "pcmcia_card_remove(%d) %s\n", s->sock, | |
458 | leftover ? leftover->devname : ""); | |
d6ff5a85 DB |
459 | |
460 | if (!leftover) | |
461 | s->device_count = 0; | |
462 | else | |
463 | s->device_count = 1; | |
464 | ||
465 | /* unregister all pcmcia_devices registered with this socket, except leftover */ | |
466 | list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) { | |
467 | if (p_dev == leftover) | |
468 | continue; | |
469 | ||
470 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
471 | list_del(&p_dev->socket_device_list); | |
472 | p_dev->_removed=1; | |
473 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
474 | ||
ac449d6e | 475 | ds_dev_dbg(2, &p_dev->dev, "unregistering device\n"); |
d6ff5a85 DB |
476 | device_unregister(&p_dev->dev); |
477 | } | |
478 | ||
479 | return; | |
480 | } | |
481 | ||
1da177e4 LT |
482 | static int pcmcia_device_remove(struct device * dev) |
483 | { | |
484 | struct pcmcia_device *p_dev; | |
485 | struct pcmcia_driver *p_drv; | |
d6ff5a85 | 486 | struct pcmcia_device_id *did; |
cc3b4866 | 487 | int i; |
1da177e4 | 488 | |
1da177e4 LT |
489 | p_dev = to_pcmcia_dev(dev); |
490 | p_drv = to_pcmcia_drv(dev->driver); | |
d6ff5a85 | 491 | |
ac449d6e | 492 | ds_dev_dbg(1, dev, "removing device\n"); |
d9d9ea01 | 493 | |
d6ff5a85 DB |
494 | /* If we're removing the primary module driving a |
495 | * pseudo multi-function card, we need to unbind | |
496 | * all devices | |
497 | */ | |
80a55e92 | 498 | did = p_dev->dev.driver_data; |
b2f51a1c | 499 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
d6ff5a85 DB |
500 | (p_dev->socket->device_count != 0) && |
501 | (p_dev->device_no == 0)) | |
502 | pcmcia_card_remove(p_dev->socket, p_dev); | |
503 | ||
504 | /* detach the "instance" */ | |
f3990715 DB |
505 | if (!p_drv) |
506 | return 0; | |
1da177e4 | 507 | |
f3990715 | 508 | if (p_drv->remove) |
cc3b4866 DB |
509 | p_drv->remove(p_dev); |
510 | ||
a0aab143 DB |
511 | p_dev->dev_node = NULL; |
512 | ||
f3990715 | 513 | /* check for proper unloading */ |
e2d40963 | 514 | if (p_dev->_irq || p_dev->_io || p_dev->_locked) |
ac449d6e DB |
515 | dev_printk(KERN_INFO, dev, |
516 | "pcmcia: driver %s did not release config properly\n", | |
517 | p_drv->drv.name); | |
cc3b4866 | 518 | |
f3990715 | 519 | for (i = 0; i < MAX_WIN; i++) |
e2d40963 | 520 | if (p_dev->_win & CLIENT_WIN_REQ(i)) |
ac449d6e DB |
521 | dev_printk(KERN_INFO, dev, |
522 | "pcmcia: driver %s did not release window properly\n", | |
523 | p_drv->drv.name); | |
cc3b4866 | 524 | |
f3990715 DB |
525 | /* references from pcmcia_probe_device */ |
526 | pcmcia_put_dev(p_dev); | |
527 | module_put(p_drv->owner); | |
1da177e4 LT |
528 | |
529 | return 0; | |
530 | } | |
531 | ||
532 | ||
1da177e4 LT |
533 | /* |
534 | * pcmcia_device_query -- determine information about a pcmcia device | |
535 | */ | |
536 | static int pcmcia_device_query(struct pcmcia_device *p_dev) | |
537 | { | |
538 | cistpl_manfid_t manf_id; | |
539 | cistpl_funcid_t func_id; | |
76fa82fb | 540 | cistpl_vers_1_t *vers1; |
1da177e4 LT |
541 | unsigned int i; |
542 | ||
76fa82fb IM |
543 | vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL); |
544 | if (!vers1) | |
545 | return -ENOMEM; | |
546 | ||
1da177e4 LT |
547 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
548 | CISTPL_MANFID, &manf_id)) { | |
549 | p_dev->manf_id = manf_id.manf; | |
550 | p_dev->card_id = manf_id.card; | |
551 | p_dev->has_manf_id = 1; | |
552 | p_dev->has_card_id = 1; | |
553 | } | |
554 | ||
555 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, | |
556 | CISTPL_FUNCID, &func_id)) { | |
557 | p_dev->func_id = func_id.func; | |
558 | p_dev->has_func_id = 1; | |
559 | } else { | |
560 | /* rule of thumb: cards with no FUNCID, but with | |
561 | * common memory device geometry information, are | |
562 | * probably memory cards (from pcmcia-cs) */ | |
76fa82fb IM |
563 | cistpl_device_geo_t *devgeo; |
564 | ||
565 | devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL); | |
566 | if (!devgeo) { | |
567 | kfree(vers1); | |
568 | return -ENOMEM; | |
569 | } | |
1da177e4 | 570 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
76fa82fb | 571 | CISTPL_DEVICE_GEO, devgeo)) { |
ac449d6e DB |
572 | ds_dev_dbg(0, &p_dev->dev, |
573 | "mem device geometry probably means " | |
574 | "FUNCID_MEMORY\n"); | |
1da177e4 LT |
575 | p_dev->func_id = CISTPL_FUNCID_MEMORY; |
576 | p_dev->has_func_id = 1; | |
577 | } | |
76fa82fb | 578 | kfree(devgeo); |
1da177e4 LT |
579 | } |
580 | ||
581 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_VERS_1, | |
76fa82fb IM |
582 | vers1)) { |
583 | for (i=0; i < vers1->ns; i++) { | |
1da177e4 LT |
584 | char *tmp; |
585 | unsigned int length; | |
586 | ||
76fa82fb | 587 | tmp = vers1->str + vers1->ofs[i]; |
1da177e4 LT |
588 | |
589 | length = strlen(tmp) + 1; | |
6e3d4f25 | 590 | if ((length < 2) || (length > 255)) |
1da177e4 LT |
591 | continue; |
592 | ||
593 | p_dev->prod_id[i] = kmalloc(sizeof(char) * length, | |
594 | GFP_KERNEL); | |
595 | if (!p_dev->prod_id[i]) | |
596 | continue; | |
597 | ||
598 | p_dev->prod_id[i] = strncpy(p_dev->prod_id[i], | |
599 | tmp, length); | |
600 | } | |
601 | } | |
602 | ||
76fa82fb | 603 | kfree(vers1); |
1da177e4 LT |
604 | return 0; |
605 | } | |
606 | ||
607 | ||
608 | /* device_add_lock is needed to avoid double registration by cardmgr and kernel. | |
609 | * Serializes pcmcia_device_add; will most likely be removed in future. | |
610 | * | |
611 | * While it has the caveat that adding new PCMCIA devices inside(!) device_register() | |
612 | * won't work, this doesn't matter much at the moment: the driver core doesn't | |
613 | * support it either. | |
614 | */ | |
7fe908dd | 615 | static DEFINE_MUTEX(device_add_lock); |
1da177e4 | 616 | |
dc109497 | 617 | struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function) |
1da177e4 | 618 | { |
360b65b9 | 619 | struct pcmcia_device *p_dev, *tmp_dev; |
1da177e4 | 620 | unsigned long flags; |
bd65a685 | 621 | int bus_id_len; |
1da177e4 | 622 | |
dc109497 | 623 | s = pcmcia_get_socket(s); |
1da177e4 LT |
624 | if (!s) |
625 | return NULL; | |
626 | ||
7fe908dd | 627 | mutex_lock(&device_add_lock); |
1da177e4 | 628 | |
d9d9ea01 DB |
629 | ds_dbg(3, "adding device to %d, function %d\n", s->sock, function); |
630 | ||
6cf5be51 DB |
631 | /* max of 4 devices per card */ |
632 | if (s->device_count == 4) | |
1ad275e3 DB |
633 | goto err_put; |
634 | ||
8084b372 | 635 | p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL); |
1da177e4 LT |
636 | if (!p_dev) |
637 | goto err_put; | |
1da177e4 | 638 | |
dc109497 | 639 | p_dev->socket = s; |
1da177e4 LT |
640 | p_dev->device_no = (s->device_count++); |
641 | p_dev->func = function; | |
642 | ||
643 | p_dev->dev.bus = &pcmcia_bus_type; | |
87373318 | 644 | p_dev->dev.parent = s->dev.parent; |
1da177e4 | 645 | p_dev->dev.release = pcmcia_release_dev; |
43d9f7fd JB |
646 | /* by default don't allow DMA */ |
647 | p_dev->dma_mask = DMA_MASK_NONE; | |
648 | p_dev->dev.dma_mask = &p_dev->dma_mask; | |
bd65a685 BG |
649 | bus_id_len = sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no); |
650 | ||
651 | p_dev->devname = kmalloc(6 + bus_id_len + 1, GFP_KERNEL); | |
652 | if (!p_dev->devname) | |
653 | goto err_free; | |
654 | sprintf (p_dev->devname, "pcmcia%s", p_dev->dev.bus_id); | |
ac449d6e | 655 | ds_dev_dbg(3, &p_dev->dev, "devname is %s\n", p_dev->devname); |
1da177e4 | 656 | |
1da177e4 | 657 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
360b65b9 DB |
658 | |
659 | /* | |
660 | * p_dev->function_config must be the same for all card functions. | |
661 | * Note that this is serialized by the device_add_lock, so that | |
662 | * only one such struct will be created. | |
663 | */ | |
664 | list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list) | |
665 | if (p_dev->func == tmp_dev->func) { | |
666 | p_dev->function_config = tmp_dev->function_config; | |
667 | kref_get(&p_dev->function_config->ref); | |
668 | } | |
669 | ||
670 | /* Add to the list in pcmcia_bus_socket */ | |
6171b88b | 671 | list_add(&p_dev->socket_device_list, &s->devices_list); |
360b65b9 | 672 | |
1da177e4 LT |
673 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
674 | ||
360b65b9 | 675 | if (!p_dev->function_config) { |
ac449d6e | 676 | ds_dev_dbg(3, &p_dev->dev, "creating config_t\n"); |
360b65b9 DB |
677 | p_dev->function_config = kzalloc(sizeof(struct config_t), |
678 | GFP_KERNEL); | |
679 | if (!p_dev->function_config) | |
680 | goto err_unreg; | |
681 | kref_init(&p_dev->function_config->ref); | |
682 | } | |
683 | ||
ac449d6e DB |
684 | dev_printk(KERN_NOTICE, &p_dev->dev, |
685 | "pcmcia: registering new device %s\n", | |
686 | p_dev->devname); | |
807277cb | 687 | |
1ad275e3 DB |
688 | pcmcia_device_query(p_dev); |
689 | ||
360b65b9 DB |
690 | if (device_register(&p_dev->dev)) |
691 | goto err_unreg; | |
1da177e4 | 692 | |
7fe908dd | 693 | mutex_unlock(&device_add_lock); |
1da177e4 LT |
694 | |
695 | return p_dev; | |
696 | ||
360b65b9 DB |
697 | err_unreg: |
698 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
699 | list_del(&p_dev->socket_device_list); | |
700 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
701 | ||
1da177e4 | 702 | err_free: |
bd65a685 | 703 | kfree(p_dev->devname); |
1da177e4 LT |
704 | kfree(p_dev); |
705 | s->device_count--; | |
706 | err_put: | |
7fe908dd | 707 | mutex_unlock(&device_add_lock); |
dc109497 | 708 | pcmcia_put_socket(s); |
1da177e4 LT |
709 | |
710 | return NULL; | |
711 | } | |
712 | ||
713 | ||
714 | static int pcmcia_card_add(struct pcmcia_socket *s) | |
715 | { | |
1da177e4 | 716 | cistpl_longlink_mfc_t mfc; |
c5081d5f | 717 | unsigned int no_funcs, i, no_chains; |
1da177e4 LT |
718 | int ret = 0; |
719 | ||
d9d9ea01 | 720 | if (!(s->resource_setup_done)) { |
ac449d6e DB |
721 | ds_dev_dbg(3, &s->dev, |
722 | "no resources available, delaying card_add\n"); | |
1da177e4 | 723 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 724 | } |
1da177e4 | 725 | |
d9d9ea01 | 726 | if (pcmcia_validate_mem(s)) { |
ac449d6e | 727 | ds_dev_dbg(3, &s->dev, "validating mem resources failed, " |
d9d9ea01 | 728 | "delaying card_add\n"); |
de75914e | 729 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 730 | } |
de75914e | 731 | |
c5081d5f DB |
732 | ret = pccard_validate_cis(s, BIND_FN_ALL, &no_chains); |
733 | if (ret || !no_chains) { | |
ac449d6e | 734 | ds_dev_dbg(0, &s->dev, "invalid CIS or invalid resources\n"); |
1da177e4 LT |
735 | return -ENODEV; |
736 | } | |
737 | ||
738 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
739 | no_funcs = mfc.nfn; | |
740 | else | |
741 | no_funcs = 1; | |
1d2c9042 | 742 | s->functions = no_funcs; |
1da177e4 | 743 | |
1da177e4 | 744 | for (i=0; i < no_funcs; i++) |
dc109497 | 745 | pcmcia_device_add(s, i); |
1da177e4 LT |
746 | |
747 | return (ret); | |
748 | } | |
749 | ||
750 | ||
4796b71f | 751 | static void pcmcia_delayed_add_device(struct work_struct *work) |
1ad275e3 | 752 | { |
c4028958 DH |
753 | struct pcmcia_socket *s = |
754 | container_of(work, struct pcmcia_socket, device_add); | |
ac449d6e | 755 | ds_dev_dbg(1, &s->dev, "adding additional device to %d\n", s->sock); |
1d2c9042 | 756 | pcmcia_device_add(s, s->pcmcia_state.mfc_pfc); |
b5e43913 | 757 | s->pcmcia_state.device_add_pending = 0; |
1d2c9042 | 758 | s->pcmcia_state.mfc_pfc = 0; |
1ad275e3 DB |
759 | } |
760 | ||
e2f0b534 | 761 | static int pcmcia_requery(struct device *dev, void * _data) |
ff1fa9ef | 762 | { |
e2f0b534 | 763 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
d9d9ea01 | 764 | if (!p_dev->dev.driver) { |
ac449d6e | 765 | ds_dev_dbg(1, dev, "update device information\n"); |
e2f0b534 | 766 | pcmcia_device_query(p_dev); |
d9d9ea01 | 767 | } |
e2f0b534 DB |
768 | |
769 | return 0; | |
770 | } | |
771 | ||
4ae1cbf1 | 772 | static void pcmcia_bus_rescan(struct pcmcia_socket *skt, int new_cis) |
e2f0b534 | 773 | { |
4ae1cbf1 | 774 | int no_devices = 0; |
f901b8c4 | 775 | int ret = 0; |
e2f0b534 DB |
776 | unsigned long flags; |
777 | ||
7fe908dd | 778 | /* must be called with skt_mutex held */ |
ac449d6e | 779 | ds_dev_dbg(0, &skt->dev, "re-scanning socket %d\n", skt->sock); |
d9d9ea01 | 780 | |
e2f0b534 | 781 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
dc109497 | 782 | if (list_empty(&skt->devices_list)) |
4ae1cbf1 | 783 | no_devices = 1; |
e2f0b534 DB |
784 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
785 | ||
4ae1cbf1 DB |
786 | /* If this is because of a CIS override, start over */ |
787 | if (new_cis && !no_devices) | |
788 | pcmcia_card_remove(skt, NULL); | |
789 | ||
e2f0b534 DB |
790 | /* if no devices were added for this socket yet because of |
791 | * missing resource information or other trouble, we need to | |
792 | * do this now. */ | |
4ae1cbf1 | 793 | if (no_devices || new_cis) { |
f901b8c4 | 794 | ret = pcmcia_card_add(skt); |
e2f0b534 DB |
795 | if (ret) |
796 | return; | |
797 | } | |
798 | ||
799 | /* some device information might have changed because of a CIS | |
800 | * update or because we can finally read it correctly... so | |
801 | * determine it again, overwriting old values if necessary. */ | |
802 | bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery); | |
803 | ||
804 | /* we re-scan all devices, not just the ones connected to this | |
805 | * socket. This does not matter, though. */ | |
f901b8c4 DB |
806 | ret = bus_rescan_devices(&pcmcia_bus_type); |
807 | if (ret) | |
808 | printk(KERN_INFO "pcmcia: bus_rescan_devices failed\n"); | |
ff1fa9ef | 809 | } |
1ad275e3 | 810 | |
1d2c9042 DB |
811 | #ifdef CONFIG_PCMCIA_LOAD_CIS |
812 | ||
813 | /** | |
814 | * pcmcia_load_firmware - load CIS from userspace if device-provided is broken | |
78187865 RD |
815 | * @dev: the pcmcia device which needs a CIS override |
816 | * @filename: requested filename in /lib/firmware/ | |
1d2c9042 DB |
817 | * |
818 | * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if | |
819 | * the one provided by the card is broken. The firmware files reside in | |
820 | * /lib/firmware/ in userspace. | |
821 | */ | |
822 | static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
823 | { | |
824 | struct pcmcia_socket *s = dev->socket; | |
825 | const struct firmware *fw; | |
feda4f2c | 826 | char path[FIRMWARE_NAME_MAX]; |
1d2c9042 DB |
827 | int ret = -ENOMEM; |
828 | int no_funcs; | |
829 | int old_funcs; | |
1d2c9042 DB |
830 | cistpl_longlink_mfc_t mfc; |
831 | ||
832 | if (!filename) | |
833 | return -EINVAL; | |
834 | ||
ac449d6e | 835 | ds_dev_dbg(1, &dev->dev, "trying to load CIS file %s\n", filename); |
1d2c9042 | 836 | |
feda4f2c | 837 | if (strlen(filename) > (FIRMWARE_NAME_MAX - 1)) { |
ac449d6e DB |
838 | dev_printk(KERN_WARNING, &dev->dev, |
839 | "pcmcia: CIS filename is too long [%s]\n", | |
840 | filename); | |
1d2c9042 | 841 | return -EINVAL; |
d9d9ea01 | 842 | } |
1d2c9042 | 843 | |
52debb06 | 844 | snprintf(path, sizeof(path), "%s", filename); |
1d2c9042 DB |
845 | |
846 | if (request_firmware(&fw, path, &dev->dev) == 0) { | |
d9d9ea01 DB |
847 | if (fw->size >= CISTPL_MAX_CIS_SIZE) { |
848 | ret = -EINVAL; | |
ac449d6e DB |
849 | dev_printk(KERN_ERR, &dev->dev, |
850 | "pcmcia: CIS override is too big\n"); | |
1d2c9042 | 851 | goto release; |
d9d9ea01 | 852 | } |
1d2c9042 | 853 | |
53efec95 | 854 | if (!pcmcia_replace_cis(s, fw->data, fw->size)) |
1d2c9042 | 855 | ret = 0; |
d9d9ea01 | 856 | else { |
ac449d6e DB |
857 | dev_printk(KERN_ERR, &dev->dev, |
858 | "pcmcia: CIS override failed\n"); | |
d9d9ea01 DB |
859 | goto release; |
860 | } | |
861 | ||
1d2c9042 DB |
862 | |
863 | /* update information */ | |
864 | pcmcia_device_query(dev); | |
865 | ||
866 | /* does this cis override add or remove functions? */ | |
867 | old_funcs = s->functions; | |
868 | ||
869 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
870 | no_funcs = mfc.nfn; | |
871 | else | |
872 | no_funcs = 1; | |
873 | s->functions = no_funcs; | |
874 | ||
875 | if (old_funcs > no_funcs) | |
876 | pcmcia_card_remove(s, dev); | |
877 | else if (no_funcs > old_funcs) | |
878 | pcmcia_add_device_later(s, 1); | |
879 | } | |
880 | release: | |
881 | release_firmware(fw); | |
882 | ||
883 | return (ret); | |
884 | } | |
885 | ||
886 | #else /* !CONFIG_PCMCIA_LOAD_CIS */ | |
887 | ||
888 | static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
889 | { | |
890 | return -ENODEV; | |
891 | } | |
892 | ||
893 | #endif | |
894 | ||
895 | ||
1ad275e3 DB |
896 | static inline int pcmcia_devmatch(struct pcmcia_device *dev, |
897 | struct pcmcia_device_id *did) | |
898 | { | |
899 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) { | |
900 | if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id)) | |
901 | return 0; | |
902 | } | |
903 | ||
904 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) { | |
905 | if ((!dev->has_card_id) || (dev->card_id != did->card_id)) | |
906 | return 0; | |
907 | } | |
908 | ||
909 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) { | |
910 | if (dev->func != did->function) | |
911 | return 0; | |
912 | } | |
913 | ||
914 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) { | |
915 | if (!dev->prod_id[0]) | |
916 | return 0; | |
917 | if (strcmp(did->prod_id[0], dev->prod_id[0])) | |
918 | return 0; | |
919 | } | |
920 | ||
921 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) { | |
922 | if (!dev->prod_id[1]) | |
923 | return 0; | |
924 | if (strcmp(did->prod_id[1], dev->prod_id[1])) | |
925 | return 0; | |
926 | } | |
927 | ||
928 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) { | |
929 | if (!dev->prod_id[2]) | |
930 | return 0; | |
931 | if (strcmp(did->prod_id[2], dev->prod_id[2])) | |
932 | return 0; | |
933 | } | |
934 | ||
935 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) { | |
936 | if (!dev->prod_id[3]) | |
937 | return 0; | |
938 | if (strcmp(did->prod_id[3], dev->prod_id[3])) | |
939 | return 0; | |
940 | } | |
941 | ||
942 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { | |
1ad275e3 DB |
943 | if (dev->device_no != did->device_no) |
944 | return 0; | |
945 | } | |
946 | ||
947 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { | |
948 | if ((!dev->has_func_id) || (dev->func_id != did->func_id)) | |
949 | return 0; | |
950 | ||
951 | /* if this is a pseudo-multi-function device, | |
952 | * we need explicit matches */ | |
953 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) | |
954 | return 0; | |
955 | if (dev->device_no) | |
956 | return 0; | |
957 | ||
958 | /* also, FUNC_ID matching needs to be activated by userspace | |
959 | * after it has re-checked that there is no possible module | |
960 | * with a prod_id/manf_id/card_id match. | |
961 | */ | |
ac449d6e DB |
962 | ds_dev_dbg(0, &dev->dev, |
963 | "skipping FUNC_ID match until userspace interaction\n"); | |
1ad275e3 DB |
964 | if (!dev->allow_func_id_match) |
965 | return 0; | |
966 | } | |
967 | ||
ea7b3882 | 968 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { |
ac449d6e | 969 | ds_dev_dbg(0, &dev->dev, "device needs a fake CIS\n"); |
daa9517d DB |
970 | if (!dev->socket->fake_cis) |
971 | pcmcia_load_firmware(dev, did->cisfile); | |
972 | ||
973 | if (!dev->socket->fake_cis) | |
ea7b3882 | 974 | return 0; |
ea7b3882 DB |
975 | } |
976 | ||
f602ff7e DB |
977 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { |
978 | int i; | |
979 | for (i=0; i<4; i++) | |
980 | if (dev->prod_id[i]) | |
981 | return 0; | |
982 | if (dev->has_manf_id || dev->has_card_id || dev->has_func_id) | |
983 | return 0; | |
984 | } | |
985 | ||
1ad275e3 DB |
986 | dev->dev.driver_data = (void *) did; |
987 | ||
988 | return 1; | |
989 | } | |
990 | ||
991 | ||
1da177e4 LT |
992 | static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) { |
993 | struct pcmcia_device * p_dev = to_pcmcia_dev(dev); | |
994 | struct pcmcia_driver * p_drv = to_pcmcia_drv(drv); | |
1ad275e3 | 995 | struct pcmcia_device_id *did = p_drv->id_table; |
6179b556 BW |
996 | struct pcmcia_dynid *dynid; |
997 | ||
998 | /* match dynamic devices first */ | |
999 | spin_lock(&p_drv->dynids.lock); | |
1000 | list_for_each_entry(dynid, &p_drv->dynids.list, node) { | |
ac449d6e | 1001 | ds_dev_dbg(3, dev, "trying to match to %s\n", drv->name); |
6179b556 | 1002 | if (pcmcia_devmatch(p_dev, &dynid->id)) { |
ac449d6e | 1003 | ds_dev_dbg(0, dev, "matched to %s\n", drv->name); |
6179b556 BW |
1004 | spin_unlock(&p_drv->dynids.lock); |
1005 | return 1; | |
1006 | } | |
1007 | } | |
1008 | spin_unlock(&p_drv->dynids.lock); | |
1da177e4 | 1009 | |
0e0fad8f | 1010 | #ifdef CONFIG_PCMCIA_IOCTL |
1da177e4 | 1011 | /* matching by cardmgr */ |
d9d9ea01 | 1012 | if (p_dev->cardmgr == p_drv) { |
ac449d6e | 1013 | ds_dev_dbg(0, dev, "cardmgr matched to %s\n", drv->name); |
1da177e4 | 1014 | return 1; |
d9d9ea01 | 1015 | } |
0e0fad8f | 1016 | #endif |
1da177e4 | 1017 | |
1ad275e3 | 1018 | while (did && did->match_flags) { |
ac449d6e | 1019 | ds_dev_dbg(3, dev, "trying to match to %s\n", drv->name); |
d9d9ea01 | 1020 | if (pcmcia_devmatch(p_dev, did)) { |
ac449d6e | 1021 | ds_dev_dbg(0, dev, "matched to %s\n", drv->name); |
1ad275e3 | 1022 | return 1; |
d9d9ea01 | 1023 | } |
1ad275e3 DB |
1024 | did++; |
1025 | } | |
1026 | ||
1da177e4 LT |
1027 | return 0; |
1028 | } | |
1029 | ||
840c2ac5 DB |
1030 | #ifdef CONFIG_HOTPLUG |
1031 | ||
7eff2e7a | 1032 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
1033 | { |
1034 | struct pcmcia_device *p_dev; | |
7eff2e7a | 1035 | int i; |
840c2ac5 DB |
1036 | u32 hash[4] = { 0, 0, 0, 0}; |
1037 | ||
1038 | if (!dev) | |
1039 | return -ENODEV; | |
1040 | ||
1041 | p_dev = to_pcmcia_dev(dev); | |
1042 | ||
1043 | /* calculate hashes */ | |
1044 | for (i=0; i<4; i++) { | |
1045 | if (!p_dev->prod_id[i]) | |
1046 | continue; | |
1047 | hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); | |
1048 | } | |
1049 | ||
7eff2e7a | 1050 | if (add_uevent_var(env, "SOCKET_NO=%u", p_dev->socket->sock)) |
840c2ac5 DB |
1051 | return -ENOMEM; |
1052 | ||
7eff2e7a | 1053 | if (add_uevent_var(env, "DEVICE_NO=%02X", p_dev->device_no)) |
840c2ac5 DB |
1054 | return -ENOMEM; |
1055 | ||
7eff2e7a | 1056 | if (add_uevent_var(env, "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" |
312c004d KS |
1057 | "pa%08Xpb%08Xpc%08Xpd%08X", |
1058 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1059 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1060 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1061 | p_dev->func, | |
1062 | p_dev->device_no, | |
1063 | hash[0], | |
1064 | hash[1], | |
1065 | hash[2], | |
1066 | hash[3])) | |
840c2ac5 DB |
1067 | return -ENOMEM; |
1068 | ||
840c2ac5 DB |
1069 | return 0; |
1070 | } | |
1071 | ||
1072 | #else | |
1073 | ||
7eff2e7a | 1074 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
1075 | { |
1076 | return -ENODEV; | |
1077 | } | |
1078 | ||
1079 | #endif | |
1080 | ||
3f8df781 AS |
1081 | /************************ runtime PM support ***************************/ |
1082 | ||
1083 | static int pcmcia_dev_suspend(struct device *dev, pm_message_t state); | |
1084 | static int pcmcia_dev_resume(struct device *dev); | |
1085 | ||
1086 | static int runtime_suspend(struct device *dev) | |
1087 | { | |
1088 | int rc; | |
1089 | ||
1090 | down(&dev->sem); | |
1091 | rc = pcmcia_dev_suspend(dev, PMSG_SUSPEND); | |
1092 | up(&dev->sem); | |
3f8df781 AS |
1093 | return rc; |
1094 | } | |
1095 | ||
1096 | static void runtime_resume(struct device *dev) | |
1097 | { | |
1098 | int rc; | |
1099 | ||
1100 | down(&dev->sem); | |
1101 | rc = pcmcia_dev_resume(dev); | |
1102 | up(&dev->sem); | |
3f8df781 AS |
1103 | } |
1104 | ||
1da177e4 LT |
1105 | /************************ per-device sysfs output ***************************/ |
1106 | ||
1107 | #define pcmcia_device_attr(field, test, format) \ | |
e404e274 | 1108 | static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1109 | { \ |
1110 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
1111 | return p_dev->test ? sprintf (buf, format, p_dev->field) : -ENODEV; \ | |
1112 | } | |
1113 | ||
1114 | #define pcmcia_device_stringattr(name, field) \ | |
e404e274 | 1115 | static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1116 | { \ |
1117 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
1118 | return p_dev->field ? sprintf (buf, "%s\n", p_dev->field) : -ENODEV; \ | |
1119 | } | |
1120 | ||
1121 | pcmcia_device_attr(func, socket, "0x%02x\n"); | |
1122 | pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); | |
1123 | pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); | |
1124 | pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); | |
1125 | pcmcia_device_stringattr(prod_id1, prod_id[0]); | |
1126 | pcmcia_device_stringattr(prod_id2, prod_id[1]); | |
1127 | pcmcia_device_stringattr(prod_id3, prod_id[2]); | |
1128 | pcmcia_device_stringattr(prod_id4, prod_id[3]); | |
1129 | ||
db1019ca DB |
1130 | |
1131 | static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf) | |
1132 | { | |
1133 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1134 | ||
f6fbe01a | 1135 | if (p_dev->suspended) |
db1019ca DB |
1136 | return sprintf(buf, "off\n"); |
1137 | else | |
1138 | return sprintf(buf, "on\n"); | |
1139 | } | |
1140 | ||
1141 | static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr, | |
1142 | const char *buf, size_t count) | |
1143 | { | |
1144 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1145 | int ret = 0; | |
1146 | ||
1147 | if (!count) | |
1148 | return -EINVAL; | |
1149 | ||
f6fbe01a | 1150 | if ((!p_dev->suspended) && !strncmp(buf, "off", 3)) |
3f8df781 | 1151 | ret = runtime_suspend(dev); |
f6fbe01a | 1152 | else if (p_dev->suspended && !strncmp(buf, "on", 2)) |
3f8df781 | 1153 | runtime_resume(dev); |
db1019ca DB |
1154 | |
1155 | return ret ? ret : count; | |
1156 | } | |
1157 | ||
1158 | ||
3704511b | 1159 | static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) |
3248ff43 DB |
1160 | { |
1161 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1162 | int i; | |
1163 | u32 hash[4] = { 0, 0, 0, 0}; | |
1164 | ||
1165 | /* calculate hashes */ | |
1166 | for (i=0; i<4; i++) { | |
1167 | if (!p_dev->prod_id[i]) | |
1168 | continue; | |
1169 | hash[i] = crc32(0,p_dev->prod_id[i],strlen(p_dev->prod_id[i])); | |
1170 | } | |
1171 | return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
1172 | "pa%08Xpb%08Xpc%08Xpd%08X\n", | |
1173 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1174 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1175 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1176 | p_dev->func, p_dev->device_no, | |
1177 | hash[0], hash[1], hash[2], hash[3]); | |
1178 | } | |
a5b55778 | 1179 | |
3248ff43 DB |
1180 | static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, |
1181 | struct device_attribute *attr, const char *buf, size_t count) | |
a5b55778 DB |
1182 | { |
1183 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
f901b8c4 | 1184 | int ret; |
db1019ca DB |
1185 | |
1186 | if (!count) | |
1187 | return -EINVAL; | |
a5b55778 | 1188 | |
7fe908dd | 1189 | mutex_lock(&p_dev->socket->skt_mutex); |
a5b55778 | 1190 | p_dev->allow_func_id_match = 1; |
7fe908dd | 1191 | mutex_unlock(&p_dev->socket->skt_mutex); |
a5b55778 | 1192 | |
f901b8c4 DB |
1193 | ret = bus_rescan_devices(&pcmcia_bus_type); |
1194 | if (ret) | |
1195 | printk(KERN_INFO "pcmcia: bus_rescan_devices failed after " | |
1196 | "allowing func_id matches\n"); | |
a5b55778 DB |
1197 | |
1198 | return count; | |
1199 | } | |
1200 | ||
1da177e4 LT |
1201 | static struct device_attribute pcmcia_dev_attrs[] = { |
1202 | __ATTR(function, 0444, func_show, NULL), | |
db1019ca | 1203 | __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state), |
1da177e4 LT |
1204 | __ATTR_RO(func_id), |
1205 | __ATTR_RO(manf_id), | |
1206 | __ATTR_RO(card_id), | |
1207 | __ATTR_RO(prod_id1), | |
1208 | __ATTR_RO(prod_id2), | |
1209 | __ATTR_RO(prod_id3), | |
1210 | __ATTR_RO(prod_id4), | |
3248ff43 | 1211 | __ATTR_RO(modalias), |
a5b55778 | 1212 | __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), |
1da177e4 LT |
1213 | __ATTR_NULL, |
1214 | }; | |
1215 | ||
8e9e793d DB |
1216 | /* PM support, also needed for reset */ |
1217 | ||
1218 | static int pcmcia_dev_suspend(struct device * dev, pm_message_t state) | |
1219 | { | |
1220 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1221 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1222 | int ret = 0; |
8e9e793d | 1223 | |
d6b4fa6d DB |
1224 | if (p_dev->suspended) |
1225 | return 0; | |
1226 | ||
ac449d6e | 1227 | ds_dev_dbg(2, dev, "suspending\n"); |
d9d9ea01 | 1228 | |
8e9e793d DB |
1229 | if (dev->driver) |
1230 | p_drv = to_pcmcia_drv(dev->driver); | |
1231 | ||
e2d40963 DB |
1232 | if (!p_drv) |
1233 | goto out; | |
1234 | ||
1235 | if (p_drv->suspend) { | |
8661bb5b | 1236 | ret = p_drv->suspend(p_dev); |
d9d9ea01 | 1237 | if (ret) { |
ac449d6e DB |
1238 | dev_printk(KERN_ERR, dev, |
1239 | "pcmcia: device %s (driver %s) did " | |
1240 | "not want to go to sleep (%d)\n", | |
1241 | p_dev->devname, p_drv->drv.name, ret); | |
f6fbe01a | 1242 | goto out; |
d9d9ea01 | 1243 | } |
8661bb5b | 1244 | } |
8e9e793d | 1245 | |
d9d9ea01 | 1246 | if (p_dev->device_no == p_dev->func) { |
ac449d6e | 1247 | ds_dev_dbg(2, dev, "releasing configuration\n"); |
e2d40963 | 1248 | pcmcia_release_configuration(p_dev); |
d9d9ea01 | 1249 | } |
e2d40963 | 1250 | |
f6fbe01a DB |
1251 | out: |
1252 | if (!ret) | |
1253 | p_dev->suspended = 1; | |
1254 | return ret; | |
8e9e793d DB |
1255 | } |
1256 | ||
1257 | ||
1258 | static int pcmcia_dev_resume(struct device * dev) | |
1259 | { | |
1260 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1261 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1262 | int ret = 0; |
8e9e793d | 1263 | |
d6b4fa6d DB |
1264 | if (!p_dev->suspended) |
1265 | return 0; | |
1266 | ||
ac449d6e | 1267 | ds_dev_dbg(2, dev, "resuming\n"); |
d9d9ea01 | 1268 | |
8e9e793d DB |
1269 | if (dev->driver) |
1270 | p_drv = to_pcmcia_drv(dev->driver); | |
1271 | ||
e2d40963 DB |
1272 | if (!p_drv) |
1273 | goto out; | |
1274 | ||
1275 | if (p_dev->device_no == p_dev->func) { | |
ac449d6e | 1276 | ds_dev_dbg(2, dev, "requesting configuration\n"); |
e2d40963 DB |
1277 | ret = pcmcia_request_configuration(p_dev, &p_dev->conf); |
1278 | if (ret) | |
1279 | goto out; | |
8661bb5b | 1280 | } |
8e9e793d | 1281 | |
e2d40963 DB |
1282 | if (p_drv->resume) |
1283 | ret = p_drv->resume(p_dev); | |
1284 | ||
f6fbe01a DB |
1285 | out: |
1286 | if (!ret) | |
1287 | p_dev->suspended = 0; | |
1288 | return ret; | |
8e9e793d DB |
1289 | } |
1290 | ||
1291 | ||
1292 | static int pcmcia_bus_suspend_callback(struct device *dev, void * _data) | |
1293 | { | |
1294 | struct pcmcia_socket *skt = _data; | |
1295 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1296 | ||
3f8df781 | 1297 | if (p_dev->socket != skt || p_dev->suspended) |
8e9e793d DB |
1298 | return 0; |
1299 | ||
3f8df781 | 1300 | return runtime_suspend(dev); |
8e9e793d DB |
1301 | } |
1302 | ||
1303 | static int pcmcia_bus_resume_callback(struct device *dev, void * _data) | |
1304 | { | |
1305 | struct pcmcia_socket *skt = _data; | |
1306 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1307 | ||
3f8df781 | 1308 | if (p_dev->socket != skt || !p_dev->suspended) |
8e9e793d DB |
1309 | return 0; |
1310 | ||
3f8df781 | 1311 | runtime_resume(dev); |
8e9e793d DB |
1312 | |
1313 | return 0; | |
1314 | } | |
1315 | ||
1316 | static int pcmcia_bus_resume(struct pcmcia_socket *skt) | |
1317 | { | |
ac449d6e | 1318 | ds_dev_dbg(2, &skt->dev, "resuming socket %d\n", skt->sock); |
8e9e793d DB |
1319 | bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback); |
1320 | return 0; | |
1321 | } | |
1322 | ||
1323 | static int pcmcia_bus_suspend(struct pcmcia_socket *skt) | |
1324 | { | |
ac449d6e | 1325 | ds_dev_dbg(2, &skt->dev, "suspending socket %d\n", skt->sock); |
8e9e793d DB |
1326 | if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt, |
1327 | pcmcia_bus_suspend_callback)) { | |
1328 | pcmcia_bus_resume(skt); | |
1329 | return -EIO; | |
1330 | } | |
1331 | return 0; | |
1332 | } | |
1333 | ||
1da177e4 | 1334 | |
1da177e4 LT |
1335 | /*====================================================================== |
1336 | ||
1337 | The card status event handler. | |
1338 | ||
1339 | ======================================================================*/ | |
1340 | ||
1da177e4 LT |
1341 | /* Normally, the event is passed to individual drivers after |
1342 | * informing userspace. Only for CS_EVENT_CARD_REMOVAL this | |
1343 | * is inversed to maintain historic compatibility. | |
1344 | */ | |
1345 | ||
1346 | static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) | |
1347 | { | |
dc109497 | 1348 | struct pcmcia_socket *s = pcmcia_get_socket(skt); |
1da177e4 | 1349 | |
1617406a | 1350 | if (!s) { |
ac449d6e DB |
1351 | dev_printk(KERN_ERR, &skt->dev, |
1352 | "PCMCIA obtaining reference to socket " \ | |
1353 | "failed, event 0x%x lost!\n", event); | |
1617406a FM |
1354 | return -ENODEV; |
1355 | } | |
1356 | ||
ac449d6e DB |
1357 | ds_dev_dbg(1, &skt->dev, "ds_event(0x%06x, %d, 0x%p)\n", |
1358 | event, priority, skt); | |
1da177e4 | 1359 | |
f8cfa618 | 1360 | switch (event) { |
1da177e4 | 1361 | case CS_EVENT_CARD_REMOVAL: |
b5e43913 | 1362 | s->pcmcia_state.present = 0; |
d6ff5a85 | 1363 | pcmcia_card_remove(skt, NULL); |
dc109497 | 1364 | handle_event(skt, event); |
1da177e4 | 1365 | break; |
f8cfa618 | 1366 | |
1da177e4 | 1367 | case CS_EVENT_CARD_INSERTION: |
b5e43913 | 1368 | s->pcmcia_state.present = 1; |
1da177e4 | 1369 | pcmcia_card_add(skt); |
dc109497 | 1370 | handle_event(skt, event); |
1da177e4 LT |
1371 | break; |
1372 | ||
1373 | case CS_EVENT_EJECTION_REQUEST: | |
1da177e4 LT |
1374 | break; |
1375 | ||
8e9e793d DB |
1376 | case CS_EVENT_PM_SUSPEND: |
1377 | case CS_EVENT_PM_RESUME: | |
1378 | case CS_EVENT_RESET_PHYSICAL: | |
1379 | case CS_EVENT_CARD_RESET: | |
1da177e4 | 1380 | default: |
dc109497 | 1381 | handle_event(skt, event); |
1da177e4 LT |
1382 | break; |
1383 | } | |
1384 | ||
dc109497 DB |
1385 | pcmcia_put_socket(s); |
1386 | ||
1da177e4 LT |
1387 | return 0; |
1388 | } /* ds_event */ | |
1389 | ||
1390 | ||
9940ec36 DB |
1391 | struct pcmcia_device * pcmcia_dev_present(struct pcmcia_device *_p_dev) |
1392 | { | |
1393 | struct pcmcia_device *p_dev; | |
1394 | struct pcmcia_device *ret = NULL; | |
1395 | ||
1396 | p_dev = pcmcia_get_dev(_p_dev); | |
1397 | if (!p_dev) | |
1398 | return NULL; | |
1399 | ||
1400 | if (!p_dev->socket->pcmcia_state.present) | |
1401 | goto out; | |
1402 | ||
1403 | if (p_dev->_removed) | |
1404 | goto out; | |
1405 | ||
1406 | if (p_dev->suspended) | |
1407 | goto out; | |
1408 | ||
1409 | ret = p_dev; | |
1410 | out: | |
1411 | pcmcia_put_dev(p_dev); | |
1412 | return ret; | |
1413 | } | |
1414 | EXPORT_SYMBOL(pcmcia_dev_present); | |
1415 | ||
1416 | ||
90c6cdd1 DB |
1417 | static struct pcmcia_callback pcmcia_bus_callback = { |
1418 | .owner = THIS_MODULE, | |
1419 | .event = ds_event, | |
1420 | .requery = pcmcia_bus_rescan, | |
8e9e793d DB |
1421 | .suspend = pcmcia_bus_suspend, |
1422 | .resume = pcmcia_bus_resume, | |
90c6cdd1 DB |
1423 | }; |
1424 | ||
87373318 | 1425 | static int __devinit pcmcia_bus_add_socket(struct device *dev, |
d8539d81 | 1426 | struct class_interface *class_intf) |
1da177e4 | 1427 | { |
87373318 | 1428 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 LT |
1429 | int ret; |
1430 | ||
dc109497 DB |
1431 | socket = pcmcia_get_socket(socket); |
1432 | if (!socket) { | |
ac449d6e DB |
1433 | dev_printk(KERN_ERR, dev, |
1434 | "PCMCIA obtaining reference to socket failed\n"); | |
1da177e4 LT |
1435 | return -ENODEV; |
1436 | } | |
1437 | ||
1da177e4 LT |
1438 | /* |
1439 | * Ugly. But we want to wait for the socket threads to have started up. | |
1440 | * We really should let the drivers themselves drive some of this.. | |
1441 | */ | |
1442 | msleep(250); | |
1443 | ||
e7a480d2 | 1444 | #ifdef CONFIG_PCMCIA_IOCTL |
dc109497 | 1445 | init_waitqueue_head(&socket->queue); |
e7a480d2 | 1446 | #endif |
dc109497 | 1447 | INIT_LIST_HEAD(&socket->devices_list); |
4796b71f | 1448 | INIT_WORK(&socket->device_add, pcmcia_delayed_add_device); |
dc109497 DB |
1449 | memset(&socket->pcmcia_state, 0, sizeof(u8)); |
1450 | socket->device_count = 0; | |
1da177e4 | 1451 | |
90c6cdd1 | 1452 | ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback); |
1da177e4 | 1453 | if (ret) { |
ac449d6e | 1454 | dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n"); |
dc109497 | 1455 | pcmcia_put_socket(socket); |
1da177e4 LT |
1456 | return (ret); |
1457 | } | |
1458 | ||
1459 | return 0; | |
1460 | } | |
1461 | ||
87373318 | 1462 | static void pcmcia_bus_remove_socket(struct device *dev, |
d8539d81 | 1463 | struct class_interface *class_intf) |
1da177e4 | 1464 | { |
87373318 | 1465 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 | 1466 | |
dc109497 | 1467 | if (!socket) |
1da177e4 LT |
1468 | return; |
1469 | ||
dc109497 | 1470 | socket->pcmcia_state.dead = 1; |
1da177e4 LT |
1471 | pccard_register_pcmcia(socket, NULL); |
1472 | ||
dfbc9e9d | 1473 | /* unregister any unbound devices */ |
8e4d9dcb | 1474 | mutex_lock(&socket->skt_mutex); |
dfbc9e9d | 1475 | pcmcia_card_remove(socket, NULL); |
8e4d9dcb | 1476 | mutex_unlock(&socket->skt_mutex); |
dfbc9e9d | 1477 | |
dc109497 | 1478 | pcmcia_put_socket(socket); |
1da177e4 LT |
1479 | |
1480 | return; | |
1481 | } | |
1482 | ||
1483 | ||
1484 | /* the pcmcia_bus_interface is used to handle pcmcia socket devices */ | |
ed49f5d0 | 1485 | static struct class_interface pcmcia_bus_interface __refdata = { |
1da177e4 | 1486 | .class = &pcmcia_socket_class, |
87373318 GKH |
1487 | .add_dev = &pcmcia_bus_add_socket, |
1488 | .remove_dev = &pcmcia_bus_remove_socket, | |
1da177e4 LT |
1489 | }; |
1490 | ||
1491 | ||
e7a480d2 | 1492 | struct bus_type pcmcia_bus_type = { |
1da177e4 | 1493 | .name = "pcmcia", |
312c004d | 1494 | .uevent = pcmcia_bus_uevent, |
1da177e4 LT |
1495 | .match = pcmcia_bus_match, |
1496 | .dev_attrs = pcmcia_dev_attrs, | |
1d0baa3a RK |
1497 | .probe = pcmcia_device_probe, |
1498 | .remove = pcmcia_device_remove, | |
8e9e793d DB |
1499 | .suspend = pcmcia_dev_suspend, |
1500 | .resume = pcmcia_dev_resume, | |
1da177e4 | 1501 | }; |
1da177e4 LT |
1502 | |
1503 | ||
1504 | static int __init init_pcmcia_bus(void) | |
1505 | { | |
ace7d477 RD |
1506 | int ret; |
1507 | ||
1da177e4 LT |
1508 | spin_lock_init(&pcmcia_dev_list_lock); |
1509 | ||
ace7d477 RD |
1510 | ret = bus_register(&pcmcia_bus_type); |
1511 | if (ret < 0) { | |
1512 | printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret); | |
1513 | return ret; | |
1514 | } | |
1515 | ret = class_interface_register(&pcmcia_bus_interface); | |
1516 | if (ret < 0) { | |
1517 | printk(KERN_WARNING | |
1518 | "pcmcia: class_interface_register error: %d\n", ret); | |
1519 | bus_unregister(&pcmcia_bus_type); | |
1520 | return ret; | |
1521 | } | |
1da177e4 | 1522 | |
e7a480d2 | 1523 | pcmcia_setup_ioctl(); |
1da177e4 LT |
1524 | |
1525 | return 0; | |
1526 | } | |
1527 | fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that | |
1528 | * pcmcia_socket_class is already registered */ | |
1529 | ||
1530 | ||
1531 | static void __exit exit_pcmcia_bus(void) | |
1532 | { | |
e7a480d2 | 1533 | pcmcia_cleanup_ioctl(); |
1da177e4 | 1534 | |
e7a480d2 | 1535 | class_interface_unregister(&pcmcia_bus_interface); |
1da177e4 LT |
1536 | |
1537 | bus_unregister(&pcmcia_bus_type); | |
1538 | } | |
1539 | module_exit(exit_pcmcia_bus); | |
1540 | ||
1541 | ||
1da177e4 | 1542 | MODULE_ALIAS("ds"); |