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" | |
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 { | |
72 | int key; | |
73 | char *msg; | |
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 | ||
140 | ||
2bc5a9bd | 141 | static int pcmcia_report_error(struct pcmcia_device *p_dev, error_info_t *err) |
1da177e4 LT |
142 | { |
143 | int i; | |
144 | char *serv; | |
145 | ||
2bc5a9bd | 146 | if (!p_dev) |
1da177e4 | 147 | printk(KERN_NOTICE); |
2bc5a9bd | 148 | else |
1da177e4 | 149 | printk(KERN_NOTICE "%s: ", p_dev->dev.bus_id); |
1da177e4 LT |
150 | |
151 | for (i = 0; i < ARRAY_SIZE(service_table); i++) | |
152 | if (service_table[i].key == err->func) | |
153 | break; | |
154 | if (i < ARRAY_SIZE(service_table)) | |
155 | serv = service_table[i].msg; | |
156 | else | |
157 | serv = "Unknown service number"; | |
158 | ||
159 | for (i = 0; i < ARRAY_SIZE(error_table); i++) | |
160 | if (error_table[i].key == err->retcode) | |
161 | break; | |
162 | if (i < ARRAY_SIZE(error_table)) | |
163 | printk("%s: %s\n", serv, error_table[i].msg); | |
164 | else | |
165 | printk("%s: Unknown error code %#x\n", serv, err->retcode); | |
166 | ||
4c89e88b | 167 | return 0; |
1da177e4 | 168 | } /* report_error */ |
1da177e4 LT |
169 | |
170 | /* end of code which was in cs.c before */ | |
171 | ||
172 | /*======================================================================*/ | |
173 | ||
2bc5a9bd | 174 | void cs_error(struct pcmcia_device *p_dev, int func, int ret) |
1da177e4 LT |
175 | { |
176 | error_info_t err = { func, ret }; | |
2bc5a9bd | 177 | pcmcia_report_error(p_dev, &err); |
1da177e4 LT |
178 | } |
179 | EXPORT_SYMBOL(cs_error); | |
180 | ||
23a83bfe DB |
181 | |
182 | static void pcmcia_check_driver(struct pcmcia_driver *p_drv) | |
183 | { | |
184 | struct pcmcia_device_id *did = p_drv->id_table; | |
185 | unsigned int i; | |
186 | u32 hash; | |
187 | ||
f8cfa618 | 188 | if (!p_drv->probe || !p_drv->remove) |
ba5bb6b5 PR |
189 | printk(KERN_DEBUG "pcmcia: %s lacks a requisite callback " |
190 | "function\n", p_drv->drv.name); | |
1e212f36 | 191 | |
23a83bfe DB |
192 | while (did && did->match_flags) { |
193 | for (i=0; i<4; i++) { | |
194 | if (!did->prod_id[i]) | |
195 | continue; | |
196 | ||
197 | hash = crc32(0, did->prod_id[i], strlen(did->prod_id[i])); | |
198 | if (hash == did->prod_id_hash[i]) | |
199 | continue; | |
200 | ||
201 | printk(KERN_DEBUG "pcmcia: %s: invalid hash for " | |
202 | "product string \"%s\": is 0x%x, should " | |
203 | "be 0x%x\n", p_drv->drv.name, did->prod_id[i], | |
204 | did->prod_id_hash[i], hash); | |
5085cb26 DB |
205 | printk(KERN_DEBUG "pcmcia: see " |
206 | "Documentation/pcmcia/devicetable.txt for " | |
207 | "details\n"); | |
23a83bfe DB |
208 | } |
209 | did++; | |
210 | } | |
211 | ||
212 | return; | |
213 | } | |
214 | ||
daa9517d | 215 | |
1da177e4 LT |
216 | /*======================================================================*/ |
217 | ||
1da177e4 | 218 | |
6179b556 BW |
219 | struct pcmcia_dynid { |
220 | struct list_head node; | |
221 | struct pcmcia_device_id id; | |
222 | }; | |
223 | ||
224 | /** | |
225 | * pcmcia_store_new_id - add a new PCMCIA device ID to this driver and re-probe devices | |
226 | * @driver: target device driver | |
227 | * @buf: buffer for scanning device ID data | |
228 | * @count: input size | |
229 | * | |
230 | * Adds a new dynamic PCMCIA device ID to this driver, | |
231 | * and causes the driver to probe for all devices again. | |
232 | */ | |
233 | static ssize_t | |
234 | pcmcia_store_new_id(struct device_driver *driver, const char *buf, size_t count) | |
235 | { | |
236 | struct pcmcia_dynid *dynid; | |
237 | struct pcmcia_driver *pdrv = to_pcmcia_drv(driver); | |
238 | __u16 match_flags, manf_id, card_id; | |
239 | __u8 func_id, function, device_no; | |
240 | __u32 prod_id_hash[4] = {0, 0, 0, 0}; | |
241 | int fields=0; | |
242 | int retval = 0; | |
243 | ||
244 | fields = sscanf(buf, "%hx %hx %hx %hhx %hhx %hhx %x %x %x %x", | |
245 | &match_flags, &manf_id, &card_id, &func_id, &function, &device_no, | |
246 | &prod_id_hash[0], &prod_id_hash[1], &prod_id_hash[2], &prod_id_hash[3]); | |
247 | if (fields < 6) | |
248 | return -EINVAL; | |
249 | ||
250 | dynid = kzalloc(sizeof(struct pcmcia_dynid), GFP_KERNEL); | |
251 | if (!dynid) | |
252 | return -ENOMEM; | |
253 | ||
254 | INIT_LIST_HEAD(&dynid->node); | |
255 | dynid->id.match_flags = match_flags; | |
256 | dynid->id.manf_id = manf_id; | |
257 | dynid->id.card_id = card_id; | |
258 | dynid->id.func_id = func_id; | |
259 | dynid->id.function = function; | |
260 | dynid->id.device_no = device_no; | |
261 | memcpy(dynid->id.prod_id_hash, prod_id_hash, sizeof(__u32) * 4); | |
262 | ||
263 | spin_lock(&pdrv->dynids.lock); | |
264 | list_add_tail(&pdrv->dynids.list, &dynid->node); | |
265 | spin_unlock(&pdrv->dynids.lock); | |
266 | ||
267 | if (get_driver(&pdrv->drv)) { | |
268 | retval = driver_attach(&pdrv->drv); | |
269 | put_driver(&pdrv->drv); | |
270 | } | |
271 | ||
272 | if (retval) | |
273 | return retval; | |
274 | return count; | |
275 | } | |
276 | static DRIVER_ATTR(new_id, S_IWUSR, NULL, pcmcia_store_new_id); | |
277 | ||
278 | static void | |
279 | pcmcia_free_dynids(struct pcmcia_driver *drv) | |
280 | { | |
281 | struct pcmcia_dynid *dynid, *n; | |
282 | ||
283 | spin_lock(&drv->dynids.lock); | |
284 | list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) { | |
285 | list_del(&dynid->node); | |
286 | kfree(dynid); | |
287 | } | |
288 | spin_unlock(&drv->dynids.lock); | |
289 | } | |
290 | ||
291 | static int | |
292 | pcmcia_create_newid_file(struct pcmcia_driver *drv) | |
293 | { | |
294 | int error = 0; | |
295 | if (drv->probe != NULL) | |
2344c6de | 296 | error = driver_create_file(&drv->drv, &driver_attr_new_id); |
6179b556 BW |
297 | return error; |
298 | } | |
299 | ||
300 | ||
1da177e4 LT |
301 | /** |
302 | * pcmcia_register_driver - register a PCMCIA driver with the bus core | |
78187865 | 303 | * @driver: the &driver being registered |
1da177e4 LT |
304 | * |
305 | * Registers a PCMCIA driver with the PCMCIA bus core. | |
306 | */ | |
1da177e4 LT |
307 | int pcmcia_register_driver(struct pcmcia_driver *driver) |
308 | { | |
6179b556 BW |
309 | int error; |
310 | ||
1da177e4 LT |
311 | if (!driver) |
312 | return -EINVAL; | |
313 | ||
23a83bfe DB |
314 | pcmcia_check_driver(driver); |
315 | ||
1da177e4 LT |
316 | /* initialize common fields */ |
317 | driver->drv.bus = &pcmcia_bus_type; | |
318 | driver->drv.owner = driver->owner; | |
6179b556 BW |
319 | spin_lock_init(&driver->dynids.lock); |
320 | INIT_LIST_HEAD(&driver->dynids.list); | |
1da177e4 | 321 | |
d9d9ea01 DB |
322 | ds_dbg(3, "registering driver %s\n", driver->drv.name); |
323 | ||
6179b556 BW |
324 | error = driver_register(&driver->drv); |
325 | if (error < 0) | |
326 | return error; | |
327 | ||
328 | error = pcmcia_create_newid_file(driver); | |
329 | if (error) | |
330 | driver_unregister(&driver->drv); | |
331 | ||
332 | return error; | |
1da177e4 LT |
333 | } |
334 | EXPORT_SYMBOL(pcmcia_register_driver); | |
335 | ||
336 | /** | |
337 | * pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core | |
78187865 | 338 | * @driver: the &driver being unregistered |
1da177e4 LT |
339 | */ |
340 | void pcmcia_unregister_driver(struct pcmcia_driver *driver) | |
341 | { | |
d9d9ea01 | 342 | ds_dbg(3, "unregistering driver %s\n", driver->drv.name); |
1da177e4 | 343 | driver_unregister(&driver->drv); |
6179b556 | 344 | pcmcia_free_dynids(driver); |
1da177e4 LT |
345 | } |
346 | EXPORT_SYMBOL(pcmcia_unregister_driver); | |
347 | ||
1da177e4 LT |
348 | |
349 | /* pcmcia_device handling */ | |
350 | ||
e7a480d2 | 351 | struct pcmcia_device * pcmcia_get_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
352 | { |
353 | struct device *tmp_dev; | |
354 | tmp_dev = get_device(&p_dev->dev); | |
355 | if (!tmp_dev) | |
356 | return NULL; | |
357 | return to_pcmcia_dev(tmp_dev); | |
358 | } | |
359 | ||
e7a480d2 | 360 | void pcmcia_put_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
361 | { |
362 | if (p_dev) | |
363 | put_device(&p_dev->dev); | |
364 | } | |
365 | ||
360b65b9 DB |
366 | static void pcmcia_release_function(struct kref *ref) |
367 | { | |
368 | struct config_t *c = container_of(ref, struct config_t, ref); | |
d9d9ea01 | 369 | ds_dbg(1, "releasing config_t\n"); |
360b65b9 DB |
370 | kfree(c); |
371 | } | |
372 | ||
1da177e4 LT |
373 | static void pcmcia_release_dev(struct device *dev) |
374 | { | |
375 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
ac449d6e | 376 | ds_dev_dbg(1, dev, "releasing device\n"); |
dc109497 | 377 | pcmcia_put_socket(p_dev->socket); |
bd65a685 | 378 | kfree(p_dev->devname); |
360b65b9 | 379 | kref_put(&p_dev->function_config->ref, pcmcia_release_function); |
1da177e4 LT |
380 | kfree(p_dev); |
381 | } | |
382 | ||
1d2c9042 | 383 | static void pcmcia_add_device_later(struct pcmcia_socket *s, int mfc) |
82d56e6d DB |
384 | { |
385 | if (!s->pcmcia_state.device_add_pending) { | |
ac449d6e | 386 | ds_dev_dbg(1, &s->dev, "scheduling to add %s secondary" |
d9d9ea01 | 387 | " device to %d\n", mfc ? "mfc" : "pfc", s->sock); |
82d56e6d | 388 | s->pcmcia_state.device_add_pending = 1; |
1d2c9042 | 389 | s->pcmcia_state.mfc_pfc = mfc; |
82d56e6d DB |
390 | schedule_work(&s->device_add); |
391 | } | |
392 | return; | |
393 | } | |
1da177e4 LT |
394 | |
395 | static int pcmcia_device_probe(struct device * dev) | |
396 | { | |
397 | struct pcmcia_device *p_dev; | |
398 | struct pcmcia_driver *p_drv; | |
82d56e6d | 399 | struct pcmcia_device_id *did; |
f8cfa618 | 400 | struct pcmcia_socket *s; |
af2b3b50 | 401 | cistpl_config_t cis_config; |
1da177e4 LT |
402 | int ret = 0; |
403 | ||
404 | dev = get_device(dev); | |
405 | if (!dev) | |
406 | return -ENODEV; | |
407 | ||
408 | p_dev = to_pcmcia_dev(dev); | |
409 | p_drv = to_pcmcia_drv(dev->driver); | |
f8cfa618 | 410 | s = p_dev->socket; |
1da177e4 | 411 | |
ac449d6e | 412 | ds_dev_dbg(1, dev, "trying to bind to %s\n", p_drv->drv.name); |
d9d9ea01 | 413 | |
360b65b9 DB |
414 | if ((!p_drv->probe) || (!p_dev->function_config) || |
415 | (!try_module_get(p_drv->owner))) { | |
1da177e4 LT |
416 | ret = -EINVAL; |
417 | goto put_dev; | |
418 | } | |
419 | ||
af2b3b50 DB |
420 | /* set up some more device information */ |
421 | ret = pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_CONFIG, | |
422 | &cis_config); | |
423 | if (!ret) { | |
424 | p_dev->conf.ConfigBase = cis_config.base; | |
425 | p_dev->conf.Present = cis_config.rmask[0]; | |
426 | } else { | |
ac449d6e DB |
427 | dev_printk(KERN_INFO, dev, |
428 | "pcmcia: could not parse base and rmask0 of CIS\n"); | |
af2b3b50 DB |
429 | p_dev->conf.ConfigBase = 0; |
430 | p_dev->conf.Present = 0; | |
431 | } | |
432 | ||
f8cfa618 | 433 | ret = p_drv->probe(p_dev); |
d9d9ea01 | 434 | if (ret) { |
ac449d6e DB |
435 | ds_dev_dbg(1, dev, "binding to %s failed with %d\n", |
436 | p_drv->drv.name, ret); | |
82d56e6d | 437 | goto put_module; |
d9d9ea01 | 438 | } |
82d56e6d DB |
439 | |
440 | /* handle pseudo multifunction devices: | |
441 | * there are at most two pseudo multifunction devices. | |
442 | * if we're matching against the first, schedule a | |
443 | * call which will then check whether there are two | |
444 | * pseudo devices, and if not, add the second one. | |
445 | */ | |
80a55e92 | 446 | did = p_dev->dev.driver_data; |
4ceadbf5 | 447 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
82d56e6d | 448 | (p_dev->socket->device_count == 1) && (p_dev->device_no == 0)) |
1d2c9042 | 449 | pcmcia_add_device_later(p_dev->socket, 0); |
f8cfa618 DB |
450 | |
451 | put_module: | |
1da177e4 LT |
452 | if (ret) |
453 | module_put(p_drv->owner); | |
454 | put_dev: | |
f8cfa618 | 455 | if (ret) |
1da177e4 LT |
456 | put_device(dev); |
457 | return (ret); | |
458 | } | |
459 | ||
460 | ||
d6ff5a85 DB |
461 | /* |
462 | * Removes a PCMCIA card from the device tree and socket list. | |
463 | */ | |
464 | static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *leftover) | |
465 | { | |
466 | struct pcmcia_device *p_dev; | |
467 | struct pcmcia_device *tmp; | |
468 | unsigned long flags; | |
469 | ||
ac449d6e DB |
470 | ds_dev_dbg(2, leftover ? &leftover->dev : &s->dev, |
471 | "pcmcia_card_remove(%d) %s\n", s->sock, | |
472 | leftover ? leftover->devname : ""); | |
d6ff5a85 DB |
473 | |
474 | if (!leftover) | |
475 | s->device_count = 0; | |
476 | else | |
477 | s->device_count = 1; | |
478 | ||
479 | /* unregister all pcmcia_devices registered with this socket, except leftover */ | |
480 | list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) { | |
481 | if (p_dev == leftover) | |
482 | continue; | |
483 | ||
484 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
485 | list_del(&p_dev->socket_device_list); | |
486 | p_dev->_removed=1; | |
487 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
488 | ||
ac449d6e | 489 | ds_dev_dbg(2, &p_dev->dev, "unregistering device\n"); |
d6ff5a85 DB |
490 | device_unregister(&p_dev->dev); |
491 | } | |
492 | ||
493 | return; | |
494 | } | |
495 | ||
1da177e4 LT |
496 | static int pcmcia_device_remove(struct device * dev) |
497 | { | |
498 | struct pcmcia_device *p_dev; | |
499 | struct pcmcia_driver *p_drv; | |
d6ff5a85 | 500 | struct pcmcia_device_id *did; |
cc3b4866 | 501 | int i; |
1da177e4 | 502 | |
1da177e4 LT |
503 | p_dev = to_pcmcia_dev(dev); |
504 | p_drv = to_pcmcia_drv(dev->driver); | |
d6ff5a85 | 505 | |
ac449d6e | 506 | ds_dev_dbg(1, dev, "removing device\n"); |
d9d9ea01 | 507 | |
d6ff5a85 DB |
508 | /* If we're removing the primary module driving a |
509 | * pseudo multi-function card, we need to unbind | |
510 | * all devices | |
511 | */ | |
80a55e92 | 512 | did = p_dev->dev.driver_data; |
b2f51a1c | 513 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
d6ff5a85 DB |
514 | (p_dev->socket->device_count != 0) && |
515 | (p_dev->device_no == 0)) | |
516 | pcmcia_card_remove(p_dev->socket, p_dev); | |
517 | ||
518 | /* detach the "instance" */ | |
f3990715 DB |
519 | if (!p_drv) |
520 | return 0; | |
1da177e4 | 521 | |
f3990715 | 522 | if (p_drv->remove) |
cc3b4866 DB |
523 | p_drv->remove(p_dev); |
524 | ||
a0aab143 DB |
525 | p_dev->dev_node = NULL; |
526 | ||
f3990715 | 527 | /* check for proper unloading */ |
e2d40963 | 528 | if (p_dev->_irq || p_dev->_io || p_dev->_locked) |
ac449d6e DB |
529 | dev_printk(KERN_INFO, dev, |
530 | "pcmcia: driver %s did not release config properly\n", | |
531 | p_drv->drv.name); | |
cc3b4866 | 532 | |
f3990715 | 533 | for (i = 0; i < MAX_WIN; i++) |
e2d40963 | 534 | if (p_dev->_win & CLIENT_WIN_REQ(i)) |
ac449d6e DB |
535 | dev_printk(KERN_INFO, dev, |
536 | "pcmcia: driver %s did not release window properly\n", | |
537 | p_drv->drv.name); | |
cc3b4866 | 538 | |
f3990715 DB |
539 | /* references from pcmcia_probe_device */ |
540 | pcmcia_put_dev(p_dev); | |
541 | module_put(p_drv->owner); | |
1da177e4 LT |
542 | |
543 | return 0; | |
544 | } | |
545 | ||
546 | ||
1da177e4 LT |
547 | /* |
548 | * pcmcia_device_query -- determine information about a pcmcia device | |
549 | */ | |
550 | static int pcmcia_device_query(struct pcmcia_device *p_dev) | |
551 | { | |
552 | cistpl_manfid_t manf_id; | |
553 | cistpl_funcid_t func_id; | |
76fa82fb | 554 | cistpl_vers_1_t *vers1; |
1da177e4 LT |
555 | unsigned int i; |
556 | ||
76fa82fb IM |
557 | vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL); |
558 | if (!vers1) | |
559 | return -ENOMEM; | |
560 | ||
1da177e4 LT |
561 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
562 | CISTPL_MANFID, &manf_id)) { | |
563 | p_dev->manf_id = manf_id.manf; | |
564 | p_dev->card_id = manf_id.card; | |
565 | p_dev->has_manf_id = 1; | |
566 | p_dev->has_card_id = 1; | |
567 | } | |
568 | ||
569 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, | |
570 | CISTPL_FUNCID, &func_id)) { | |
571 | p_dev->func_id = func_id.func; | |
572 | p_dev->has_func_id = 1; | |
573 | } else { | |
574 | /* rule of thumb: cards with no FUNCID, but with | |
575 | * common memory device geometry information, are | |
576 | * probably memory cards (from pcmcia-cs) */ | |
76fa82fb IM |
577 | cistpl_device_geo_t *devgeo; |
578 | ||
579 | devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL); | |
580 | if (!devgeo) { | |
581 | kfree(vers1); | |
582 | return -ENOMEM; | |
583 | } | |
1da177e4 | 584 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
76fa82fb | 585 | CISTPL_DEVICE_GEO, devgeo)) { |
ac449d6e DB |
586 | ds_dev_dbg(0, &p_dev->dev, |
587 | "mem device geometry probably means " | |
588 | "FUNCID_MEMORY\n"); | |
1da177e4 LT |
589 | p_dev->func_id = CISTPL_FUNCID_MEMORY; |
590 | p_dev->has_func_id = 1; | |
591 | } | |
76fa82fb | 592 | kfree(devgeo); |
1da177e4 LT |
593 | } |
594 | ||
595 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_VERS_1, | |
76fa82fb IM |
596 | vers1)) { |
597 | for (i=0; i < vers1->ns; i++) { | |
1da177e4 LT |
598 | char *tmp; |
599 | unsigned int length; | |
600 | ||
76fa82fb | 601 | tmp = vers1->str + vers1->ofs[i]; |
1da177e4 LT |
602 | |
603 | length = strlen(tmp) + 1; | |
6e3d4f25 | 604 | if ((length < 2) || (length > 255)) |
1da177e4 LT |
605 | continue; |
606 | ||
607 | p_dev->prod_id[i] = kmalloc(sizeof(char) * length, | |
608 | GFP_KERNEL); | |
609 | if (!p_dev->prod_id[i]) | |
610 | continue; | |
611 | ||
612 | p_dev->prod_id[i] = strncpy(p_dev->prod_id[i], | |
613 | tmp, length); | |
614 | } | |
615 | } | |
616 | ||
76fa82fb | 617 | kfree(vers1); |
1da177e4 LT |
618 | return 0; |
619 | } | |
620 | ||
621 | ||
622 | /* device_add_lock is needed to avoid double registration by cardmgr and kernel. | |
623 | * Serializes pcmcia_device_add; will most likely be removed in future. | |
624 | * | |
625 | * While it has the caveat that adding new PCMCIA devices inside(!) device_register() | |
626 | * won't work, this doesn't matter much at the moment: the driver core doesn't | |
627 | * support it either. | |
628 | */ | |
7fe908dd | 629 | static DEFINE_MUTEX(device_add_lock); |
1da177e4 | 630 | |
dc109497 | 631 | struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function) |
1da177e4 | 632 | { |
360b65b9 | 633 | struct pcmcia_device *p_dev, *tmp_dev; |
1da177e4 | 634 | unsigned long flags; |
bd65a685 | 635 | int bus_id_len; |
1da177e4 | 636 | |
dc109497 | 637 | s = pcmcia_get_socket(s); |
1da177e4 LT |
638 | if (!s) |
639 | return NULL; | |
640 | ||
7fe908dd | 641 | mutex_lock(&device_add_lock); |
1da177e4 | 642 | |
d9d9ea01 DB |
643 | ds_dbg(3, "adding device to %d, function %d\n", s->sock, function); |
644 | ||
6cf5be51 DB |
645 | /* max of 4 devices per card */ |
646 | if (s->device_count == 4) | |
1ad275e3 DB |
647 | goto err_put; |
648 | ||
8084b372 | 649 | p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL); |
1da177e4 LT |
650 | if (!p_dev) |
651 | goto err_put; | |
1da177e4 | 652 | |
dc109497 | 653 | p_dev->socket = s; |
1da177e4 LT |
654 | p_dev->device_no = (s->device_count++); |
655 | p_dev->func = function; | |
656 | ||
657 | p_dev->dev.bus = &pcmcia_bus_type; | |
87373318 | 658 | p_dev->dev.parent = s->dev.parent; |
1da177e4 | 659 | p_dev->dev.release = pcmcia_release_dev; |
43d9f7fd JB |
660 | /* by default don't allow DMA */ |
661 | p_dev->dma_mask = DMA_MASK_NONE; | |
662 | p_dev->dev.dma_mask = &p_dev->dma_mask; | |
bd65a685 BG |
663 | bus_id_len = sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no); |
664 | ||
665 | p_dev->devname = kmalloc(6 + bus_id_len + 1, GFP_KERNEL); | |
666 | if (!p_dev->devname) | |
667 | goto err_free; | |
668 | sprintf (p_dev->devname, "pcmcia%s", p_dev->dev.bus_id); | |
ac449d6e | 669 | ds_dev_dbg(3, &p_dev->dev, "devname is %s\n", p_dev->devname); |
1da177e4 | 670 | |
1da177e4 | 671 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
360b65b9 DB |
672 | |
673 | /* | |
674 | * p_dev->function_config must be the same for all card functions. | |
675 | * Note that this is serialized by the device_add_lock, so that | |
676 | * only one such struct will be created. | |
677 | */ | |
678 | list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list) | |
679 | if (p_dev->func == tmp_dev->func) { | |
680 | p_dev->function_config = tmp_dev->function_config; | |
681 | kref_get(&p_dev->function_config->ref); | |
682 | } | |
683 | ||
684 | /* Add to the list in pcmcia_bus_socket */ | |
6171b88b | 685 | list_add(&p_dev->socket_device_list, &s->devices_list); |
360b65b9 | 686 | |
1da177e4 LT |
687 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
688 | ||
360b65b9 | 689 | if (!p_dev->function_config) { |
ac449d6e | 690 | ds_dev_dbg(3, &p_dev->dev, "creating config_t\n"); |
360b65b9 DB |
691 | p_dev->function_config = kzalloc(sizeof(struct config_t), |
692 | GFP_KERNEL); | |
693 | if (!p_dev->function_config) | |
694 | goto err_unreg; | |
695 | kref_init(&p_dev->function_config->ref); | |
696 | } | |
697 | ||
ac449d6e DB |
698 | dev_printk(KERN_NOTICE, &p_dev->dev, |
699 | "pcmcia: registering new device %s\n", | |
700 | p_dev->devname); | |
807277cb | 701 | |
1ad275e3 DB |
702 | pcmcia_device_query(p_dev); |
703 | ||
360b65b9 DB |
704 | if (device_register(&p_dev->dev)) |
705 | goto err_unreg; | |
1da177e4 | 706 | |
7fe908dd | 707 | mutex_unlock(&device_add_lock); |
1da177e4 LT |
708 | |
709 | return p_dev; | |
710 | ||
360b65b9 DB |
711 | err_unreg: |
712 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
713 | list_del(&p_dev->socket_device_list); | |
714 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
715 | ||
1da177e4 | 716 | err_free: |
bd65a685 | 717 | kfree(p_dev->devname); |
1da177e4 LT |
718 | kfree(p_dev); |
719 | s->device_count--; | |
720 | err_put: | |
7fe908dd | 721 | mutex_unlock(&device_add_lock); |
dc109497 | 722 | pcmcia_put_socket(s); |
1da177e4 LT |
723 | |
724 | return NULL; | |
725 | } | |
726 | ||
727 | ||
728 | static int pcmcia_card_add(struct pcmcia_socket *s) | |
729 | { | |
1da177e4 | 730 | cistpl_longlink_mfc_t mfc; |
c5081d5f | 731 | unsigned int no_funcs, i, no_chains; |
1da177e4 LT |
732 | int ret = 0; |
733 | ||
d9d9ea01 | 734 | if (!(s->resource_setup_done)) { |
ac449d6e DB |
735 | ds_dev_dbg(3, &s->dev, |
736 | "no resources available, delaying card_add\n"); | |
1da177e4 | 737 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 738 | } |
1da177e4 | 739 | |
d9d9ea01 | 740 | if (pcmcia_validate_mem(s)) { |
ac449d6e | 741 | ds_dev_dbg(3, &s->dev, "validating mem resources failed, " |
d9d9ea01 | 742 | "delaying card_add\n"); |
de75914e | 743 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 744 | } |
de75914e | 745 | |
c5081d5f DB |
746 | ret = pccard_validate_cis(s, BIND_FN_ALL, &no_chains); |
747 | if (ret || !no_chains) { | |
ac449d6e | 748 | ds_dev_dbg(0, &s->dev, "invalid CIS or invalid resources\n"); |
1da177e4 LT |
749 | return -ENODEV; |
750 | } | |
751 | ||
752 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
753 | no_funcs = mfc.nfn; | |
754 | else | |
755 | no_funcs = 1; | |
1d2c9042 | 756 | s->functions = no_funcs; |
1da177e4 | 757 | |
1da177e4 | 758 | for (i=0; i < no_funcs; i++) |
dc109497 | 759 | pcmcia_device_add(s, i); |
1da177e4 LT |
760 | |
761 | return (ret); | |
762 | } | |
763 | ||
764 | ||
4796b71f | 765 | static void pcmcia_delayed_add_device(struct work_struct *work) |
1ad275e3 | 766 | { |
c4028958 DH |
767 | struct pcmcia_socket *s = |
768 | container_of(work, struct pcmcia_socket, device_add); | |
ac449d6e | 769 | ds_dev_dbg(1, &s->dev, "adding additional device to %d\n", s->sock); |
1d2c9042 | 770 | pcmcia_device_add(s, s->pcmcia_state.mfc_pfc); |
b5e43913 | 771 | s->pcmcia_state.device_add_pending = 0; |
1d2c9042 | 772 | s->pcmcia_state.mfc_pfc = 0; |
1ad275e3 DB |
773 | } |
774 | ||
e2f0b534 | 775 | static int pcmcia_requery(struct device *dev, void * _data) |
ff1fa9ef | 776 | { |
e2f0b534 | 777 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
d9d9ea01 | 778 | if (!p_dev->dev.driver) { |
ac449d6e | 779 | ds_dev_dbg(1, dev, "update device information\n"); |
e2f0b534 | 780 | pcmcia_device_query(p_dev); |
d9d9ea01 | 781 | } |
e2f0b534 DB |
782 | |
783 | return 0; | |
784 | } | |
785 | ||
4ae1cbf1 | 786 | static void pcmcia_bus_rescan(struct pcmcia_socket *skt, int new_cis) |
e2f0b534 | 787 | { |
4ae1cbf1 | 788 | int no_devices = 0; |
f901b8c4 | 789 | int ret = 0; |
e2f0b534 DB |
790 | unsigned long flags; |
791 | ||
7fe908dd | 792 | /* must be called with skt_mutex held */ |
ac449d6e | 793 | ds_dev_dbg(0, &skt->dev, "re-scanning socket %d\n", skt->sock); |
d9d9ea01 | 794 | |
e2f0b534 | 795 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
dc109497 | 796 | if (list_empty(&skt->devices_list)) |
4ae1cbf1 | 797 | no_devices = 1; |
e2f0b534 DB |
798 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
799 | ||
4ae1cbf1 DB |
800 | /* If this is because of a CIS override, start over */ |
801 | if (new_cis && !no_devices) | |
802 | pcmcia_card_remove(skt, NULL); | |
803 | ||
e2f0b534 DB |
804 | /* if no devices were added for this socket yet because of |
805 | * missing resource information or other trouble, we need to | |
806 | * do this now. */ | |
4ae1cbf1 | 807 | if (no_devices || new_cis) { |
f901b8c4 | 808 | ret = pcmcia_card_add(skt); |
e2f0b534 DB |
809 | if (ret) |
810 | return; | |
811 | } | |
812 | ||
813 | /* some device information might have changed because of a CIS | |
814 | * update or because we can finally read it correctly... so | |
815 | * determine it again, overwriting old values if necessary. */ | |
816 | bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery); | |
817 | ||
818 | /* we re-scan all devices, not just the ones connected to this | |
819 | * socket. This does not matter, though. */ | |
f901b8c4 DB |
820 | ret = bus_rescan_devices(&pcmcia_bus_type); |
821 | if (ret) | |
822 | printk(KERN_INFO "pcmcia: bus_rescan_devices failed\n"); | |
ff1fa9ef | 823 | } |
1ad275e3 | 824 | |
1d2c9042 DB |
825 | #ifdef CONFIG_PCMCIA_LOAD_CIS |
826 | ||
827 | /** | |
828 | * pcmcia_load_firmware - load CIS from userspace if device-provided is broken | |
78187865 RD |
829 | * @dev: the pcmcia device which needs a CIS override |
830 | * @filename: requested filename in /lib/firmware/ | |
1d2c9042 DB |
831 | * |
832 | * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if | |
833 | * the one provided by the card is broken. The firmware files reside in | |
834 | * /lib/firmware/ in userspace. | |
835 | */ | |
836 | static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
837 | { | |
838 | struct pcmcia_socket *s = dev->socket; | |
839 | const struct firmware *fw; | |
feda4f2c | 840 | char path[FIRMWARE_NAME_MAX]; |
1d2c9042 DB |
841 | int ret = -ENOMEM; |
842 | int no_funcs; | |
843 | int old_funcs; | |
1d2c9042 DB |
844 | cistpl_longlink_mfc_t mfc; |
845 | ||
846 | if (!filename) | |
847 | return -EINVAL; | |
848 | ||
ac449d6e | 849 | ds_dev_dbg(1, &dev->dev, "trying to load CIS file %s\n", filename); |
1d2c9042 | 850 | |
feda4f2c | 851 | if (strlen(filename) > (FIRMWARE_NAME_MAX - 1)) { |
ac449d6e DB |
852 | dev_printk(KERN_WARNING, &dev->dev, |
853 | "pcmcia: CIS filename is too long [%s]\n", | |
854 | filename); | |
1d2c9042 | 855 | return -EINVAL; |
d9d9ea01 | 856 | } |
1d2c9042 | 857 | |
52debb06 | 858 | snprintf(path, sizeof(path), "%s", filename); |
1d2c9042 DB |
859 | |
860 | if (request_firmware(&fw, path, &dev->dev) == 0) { | |
d9d9ea01 DB |
861 | if (fw->size >= CISTPL_MAX_CIS_SIZE) { |
862 | ret = -EINVAL; | |
ac449d6e DB |
863 | dev_printk(KERN_ERR, &dev->dev, |
864 | "pcmcia: CIS override is too big\n"); | |
1d2c9042 | 865 | goto release; |
d9d9ea01 | 866 | } |
1d2c9042 | 867 | |
53efec95 | 868 | if (!pcmcia_replace_cis(s, fw->data, fw->size)) |
1d2c9042 | 869 | ret = 0; |
d9d9ea01 | 870 | else { |
ac449d6e DB |
871 | dev_printk(KERN_ERR, &dev->dev, |
872 | "pcmcia: CIS override failed\n"); | |
d9d9ea01 DB |
873 | goto release; |
874 | } | |
875 | ||
1d2c9042 DB |
876 | |
877 | /* update information */ | |
878 | pcmcia_device_query(dev); | |
879 | ||
880 | /* does this cis override add or remove functions? */ | |
881 | old_funcs = s->functions; | |
882 | ||
883 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
884 | no_funcs = mfc.nfn; | |
885 | else | |
886 | no_funcs = 1; | |
887 | s->functions = no_funcs; | |
888 | ||
889 | if (old_funcs > no_funcs) | |
890 | pcmcia_card_remove(s, dev); | |
891 | else if (no_funcs > old_funcs) | |
892 | pcmcia_add_device_later(s, 1); | |
893 | } | |
894 | release: | |
895 | release_firmware(fw); | |
896 | ||
897 | return (ret); | |
898 | } | |
899 | ||
900 | #else /* !CONFIG_PCMCIA_LOAD_CIS */ | |
901 | ||
902 | static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
903 | { | |
904 | return -ENODEV; | |
905 | } | |
906 | ||
907 | #endif | |
908 | ||
909 | ||
1ad275e3 DB |
910 | static inline int pcmcia_devmatch(struct pcmcia_device *dev, |
911 | struct pcmcia_device_id *did) | |
912 | { | |
913 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) { | |
914 | if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id)) | |
915 | return 0; | |
916 | } | |
917 | ||
918 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) { | |
919 | if ((!dev->has_card_id) || (dev->card_id != did->card_id)) | |
920 | return 0; | |
921 | } | |
922 | ||
923 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) { | |
924 | if (dev->func != did->function) | |
925 | return 0; | |
926 | } | |
927 | ||
928 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) { | |
929 | if (!dev->prod_id[0]) | |
930 | return 0; | |
931 | if (strcmp(did->prod_id[0], dev->prod_id[0])) | |
932 | return 0; | |
933 | } | |
934 | ||
935 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) { | |
936 | if (!dev->prod_id[1]) | |
937 | return 0; | |
938 | if (strcmp(did->prod_id[1], dev->prod_id[1])) | |
939 | return 0; | |
940 | } | |
941 | ||
942 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) { | |
943 | if (!dev->prod_id[2]) | |
944 | return 0; | |
945 | if (strcmp(did->prod_id[2], dev->prod_id[2])) | |
946 | return 0; | |
947 | } | |
948 | ||
949 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) { | |
950 | if (!dev->prod_id[3]) | |
951 | return 0; | |
952 | if (strcmp(did->prod_id[3], dev->prod_id[3])) | |
953 | return 0; | |
954 | } | |
955 | ||
956 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { | |
1ad275e3 DB |
957 | if (dev->device_no != did->device_no) |
958 | return 0; | |
959 | } | |
960 | ||
961 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { | |
962 | if ((!dev->has_func_id) || (dev->func_id != did->func_id)) | |
963 | return 0; | |
964 | ||
965 | /* if this is a pseudo-multi-function device, | |
966 | * we need explicit matches */ | |
967 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) | |
968 | return 0; | |
969 | if (dev->device_no) | |
970 | return 0; | |
971 | ||
972 | /* also, FUNC_ID matching needs to be activated by userspace | |
973 | * after it has re-checked that there is no possible module | |
974 | * with a prod_id/manf_id/card_id match. | |
975 | */ | |
ac449d6e DB |
976 | ds_dev_dbg(0, &dev->dev, |
977 | "skipping FUNC_ID match until userspace interaction\n"); | |
1ad275e3 DB |
978 | if (!dev->allow_func_id_match) |
979 | return 0; | |
980 | } | |
981 | ||
ea7b3882 | 982 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { |
ac449d6e | 983 | ds_dev_dbg(0, &dev->dev, "device needs a fake CIS\n"); |
daa9517d DB |
984 | if (!dev->socket->fake_cis) |
985 | pcmcia_load_firmware(dev, did->cisfile); | |
986 | ||
987 | if (!dev->socket->fake_cis) | |
ea7b3882 | 988 | return 0; |
ea7b3882 DB |
989 | } |
990 | ||
f602ff7e DB |
991 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { |
992 | int i; | |
993 | for (i=0; i<4; i++) | |
994 | if (dev->prod_id[i]) | |
995 | return 0; | |
996 | if (dev->has_manf_id || dev->has_card_id || dev->has_func_id) | |
997 | return 0; | |
998 | } | |
999 | ||
1ad275e3 DB |
1000 | dev->dev.driver_data = (void *) did; |
1001 | ||
1002 | return 1; | |
1003 | } | |
1004 | ||
1005 | ||
1da177e4 LT |
1006 | static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) { |
1007 | struct pcmcia_device * p_dev = to_pcmcia_dev(dev); | |
1008 | struct pcmcia_driver * p_drv = to_pcmcia_drv(drv); | |
1ad275e3 | 1009 | struct pcmcia_device_id *did = p_drv->id_table; |
6179b556 BW |
1010 | struct pcmcia_dynid *dynid; |
1011 | ||
1012 | /* match dynamic devices first */ | |
1013 | spin_lock(&p_drv->dynids.lock); | |
1014 | list_for_each_entry(dynid, &p_drv->dynids.list, node) { | |
ac449d6e | 1015 | ds_dev_dbg(3, dev, "trying to match to %s\n", drv->name); |
6179b556 | 1016 | if (pcmcia_devmatch(p_dev, &dynid->id)) { |
ac449d6e | 1017 | ds_dev_dbg(0, dev, "matched to %s\n", drv->name); |
6179b556 BW |
1018 | spin_unlock(&p_drv->dynids.lock); |
1019 | return 1; | |
1020 | } | |
1021 | } | |
1022 | spin_unlock(&p_drv->dynids.lock); | |
1da177e4 | 1023 | |
0e0fad8f | 1024 | #ifdef CONFIG_PCMCIA_IOCTL |
1da177e4 | 1025 | /* matching by cardmgr */ |
d9d9ea01 | 1026 | if (p_dev->cardmgr == p_drv) { |
ac449d6e | 1027 | ds_dev_dbg(0, dev, "cardmgr matched to %s\n", drv->name); |
1da177e4 | 1028 | return 1; |
d9d9ea01 | 1029 | } |
0e0fad8f | 1030 | #endif |
1da177e4 | 1031 | |
1ad275e3 | 1032 | while (did && did->match_flags) { |
ac449d6e | 1033 | ds_dev_dbg(3, dev, "trying to match to %s\n", drv->name); |
d9d9ea01 | 1034 | if (pcmcia_devmatch(p_dev, did)) { |
ac449d6e | 1035 | ds_dev_dbg(0, dev, "matched to %s\n", drv->name); |
1ad275e3 | 1036 | return 1; |
d9d9ea01 | 1037 | } |
1ad275e3 DB |
1038 | did++; |
1039 | } | |
1040 | ||
1da177e4 LT |
1041 | return 0; |
1042 | } | |
1043 | ||
840c2ac5 DB |
1044 | #ifdef CONFIG_HOTPLUG |
1045 | ||
7eff2e7a | 1046 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
1047 | { |
1048 | struct pcmcia_device *p_dev; | |
7eff2e7a | 1049 | int i; |
840c2ac5 DB |
1050 | u32 hash[4] = { 0, 0, 0, 0}; |
1051 | ||
1052 | if (!dev) | |
1053 | return -ENODEV; | |
1054 | ||
1055 | p_dev = to_pcmcia_dev(dev); | |
1056 | ||
1057 | /* calculate hashes */ | |
1058 | for (i=0; i<4; i++) { | |
1059 | if (!p_dev->prod_id[i]) | |
1060 | continue; | |
1061 | hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); | |
1062 | } | |
1063 | ||
7eff2e7a | 1064 | if (add_uevent_var(env, "SOCKET_NO=%u", p_dev->socket->sock)) |
840c2ac5 DB |
1065 | return -ENOMEM; |
1066 | ||
7eff2e7a | 1067 | if (add_uevent_var(env, "DEVICE_NO=%02X", p_dev->device_no)) |
840c2ac5 DB |
1068 | return -ENOMEM; |
1069 | ||
7eff2e7a | 1070 | if (add_uevent_var(env, "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" |
312c004d KS |
1071 | "pa%08Xpb%08Xpc%08Xpd%08X", |
1072 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1073 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1074 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1075 | p_dev->func, | |
1076 | p_dev->device_no, | |
1077 | hash[0], | |
1078 | hash[1], | |
1079 | hash[2], | |
1080 | hash[3])) | |
840c2ac5 DB |
1081 | return -ENOMEM; |
1082 | ||
840c2ac5 DB |
1083 | return 0; |
1084 | } | |
1085 | ||
1086 | #else | |
1087 | ||
7eff2e7a | 1088 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
1089 | { |
1090 | return -ENODEV; | |
1091 | } | |
1092 | ||
1093 | #endif | |
1094 | ||
3f8df781 AS |
1095 | /************************ runtime PM support ***************************/ |
1096 | ||
1097 | static int pcmcia_dev_suspend(struct device *dev, pm_message_t state); | |
1098 | static int pcmcia_dev_resume(struct device *dev); | |
1099 | ||
1100 | static int runtime_suspend(struct device *dev) | |
1101 | { | |
1102 | int rc; | |
1103 | ||
1104 | down(&dev->sem); | |
1105 | rc = pcmcia_dev_suspend(dev, PMSG_SUSPEND); | |
1106 | up(&dev->sem); | |
3f8df781 AS |
1107 | return rc; |
1108 | } | |
1109 | ||
1110 | static void runtime_resume(struct device *dev) | |
1111 | { | |
1112 | int rc; | |
1113 | ||
1114 | down(&dev->sem); | |
1115 | rc = pcmcia_dev_resume(dev); | |
1116 | up(&dev->sem); | |
3f8df781 AS |
1117 | } |
1118 | ||
1da177e4 LT |
1119 | /************************ per-device sysfs output ***************************/ |
1120 | ||
1121 | #define pcmcia_device_attr(field, test, format) \ | |
e404e274 | 1122 | static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1123 | { \ |
1124 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
1125 | return p_dev->test ? sprintf (buf, format, p_dev->field) : -ENODEV; \ | |
1126 | } | |
1127 | ||
1128 | #define pcmcia_device_stringattr(name, field) \ | |
e404e274 | 1129 | static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1130 | { \ |
1131 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
1132 | return p_dev->field ? sprintf (buf, "%s\n", p_dev->field) : -ENODEV; \ | |
1133 | } | |
1134 | ||
1135 | pcmcia_device_attr(func, socket, "0x%02x\n"); | |
1136 | pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); | |
1137 | pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); | |
1138 | pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); | |
1139 | pcmcia_device_stringattr(prod_id1, prod_id[0]); | |
1140 | pcmcia_device_stringattr(prod_id2, prod_id[1]); | |
1141 | pcmcia_device_stringattr(prod_id3, prod_id[2]); | |
1142 | pcmcia_device_stringattr(prod_id4, prod_id[3]); | |
1143 | ||
db1019ca DB |
1144 | |
1145 | static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf) | |
1146 | { | |
1147 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1148 | ||
f6fbe01a | 1149 | if (p_dev->suspended) |
db1019ca DB |
1150 | return sprintf(buf, "off\n"); |
1151 | else | |
1152 | return sprintf(buf, "on\n"); | |
1153 | } | |
1154 | ||
1155 | static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr, | |
1156 | const char *buf, size_t count) | |
1157 | { | |
1158 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1159 | int ret = 0; | |
1160 | ||
1161 | if (!count) | |
1162 | return -EINVAL; | |
1163 | ||
f6fbe01a | 1164 | if ((!p_dev->suspended) && !strncmp(buf, "off", 3)) |
3f8df781 | 1165 | ret = runtime_suspend(dev); |
f6fbe01a | 1166 | else if (p_dev->suspended && !strncmp(buf, "on", 2)) |
3f8df781 | 1167 | runtime_resume(dev); |
db1019ca DB |
1168 | |
1169 | return ret ? ret : count; | |
1170 | } | |
1171 | ||
1172 | ||
3704511b | 1173 | static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) |
3248ff43 DB |
1174 | { |
1175 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1176 | int i; | |
1177 | u32 hash[4] = { 0, 0, 0, 0}; | |
1178 | ||
1179 | /* calculate hashes */ | |
1180 | for (i=0; i<4; i++) { | |
1181 | if (!p_dev->prod_id[i]) | |
1182 | continue; | |
1183 | hash[i] = crc32(0,p_dev->prod_id[i],strlen(p_dev->prod_id[i])); | |
1184 | } | |
1185 | return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
1186 | "pa%08Xpb%08Xpc%08Xpd%08X\n", | |
1187 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1188 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1189 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1190 | p_dev->func, p_dev->device_no, | |
1191 | hash[0], hash[1], hash[2], hash[3]); | |
1192 | } | |
a5b55778 | 1193 | |
3248ff43 DB |
1194 | static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, |
1195 | struct device_attribute *attr, const char *buf, size_t count) | |
a5b55778 DB |
1196 | { |
1197 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
f901b8c4 | 1198 | int ret; |
db1019ca DB |
1199 | |
1200 | if (!count) | |
1201 | return -EINVAL; | |
a5b55778 | 1202 | |
7fe908dd | 1203 | mutex_lock(&p_dev->socket->skt_mutex); |
a5b55778 | 1204 | p_dev->allow_func_id_match = 1; |
7fe908dd | 1205 | mutex_unlock(&p_dev->socket->skt_mutex); |
a5b55778 | 1206 | |
f901b8c4 DB |
1207 | ret = bus_rescan_devices(&pcmcia_bus_type); |
1208 | if (ret) | |
1209 | printk(KERN_INFO "pcmcia: bus_rescan_devices failed after " | |
1210 | "allowing func_id matches\n"); | |
a5b55778 DB |
1211 | |
1212 | return count; | |
1213 | } | |
1214 | ||
1da177e4 LT |
1215 | static struct device_attribute pcmcia_dev_attrs[] = { |
1216 | __ATTR(function, 0444, func_show, NULL), | |
db1019ca | 1217 | __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state), |
1da177e4 LT |
1218 | __ATTR_RO(func_id), |
1219 | __ATTR_RO(manf_id), | |
1220 | __ATTR_RO(card_id), | |
1221 | __ATTR_RO(prod_id1), | |
1222 | __ATTR_RO(prod_id2), | |
1223 | __ATTR_RO(prod_id3), | |
1224 | __ATTR_RO(prod_id4), | |
3248ff43 | 1225 | __ATTR_RO(modalias), |
a5b55778 | 1226 | __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), |
1da177e4 LT |
1227 | __ATTR_NULL, |
1228 | }; | |
1229 | ||
8e9e793d DB |
1230 | /* PM support, also needed for reset */ |
1231 | ||
1232 | static int pcmcia_dev_suspend(struct device * dev, pm_message_t state) | |
1233 | { | |
1234 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1235 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1236 | int ret = 0; |
8e9e793d | 1237 | |
d6b4fa6d DB |
1238 | if (p_dev->suspended) |
1239 | return 0; | |
1240 | ||
ac449d6e | 1241 | ds_dev_dbg(2, dev, "suspending\n"); |
d9d9ea01 | 1242 | |
8e9e793d DB |
1243 | if (dev->driver) |
1244 | p_drv = to_pcmcia_drv(dev->driver); | |
1245 | ||
e2d40963 DB |
1246 | if (!p_drv) |
1247 | goto out; | |
1248 | ||
1249 | if (p_drv->suspend) { | |
8661bb5b | 1250 | ret = p_drv->suspend(p_dev); |
d9d9ea01 | 1251 | if (ret) { |
ac449d6e DB |
1252 | dev_printk(KERN_ERR, dev, |
1253 | "pcmcia: device %s (driver %s) did " | |
1254 | "not want to go to sleep (%d)\n", | |
1255 | p_dev->devname, p_drv->drv.name, ret); | |
f6fbe01a | 1256 | goto out; |
d9d9ea01 | 1257 | } |
8661bb5b | 1258 | } |
8e9e793d | 1259 | |
d9d9ea01 | 1260 | if (p_dev->device_no == p_dev->func) { |
ac449d6e | 1261 | ds_dev_dbg(2, dev, "releasing configuration\n"); |
e2d40963 | 1262 | pcmcia_release_configuration(p_dev); |
d9d9ea01 | 1263 | } |
e2d40963 | 1264 | |
f6fbe01a DB |
1265 | out: |
1266 | if (!ret) | |
1267 | p_dev->suspended = 1; | |
1268 | return ret; | |
8e9e793d DB |
1269 | } |
1270 | ||
1271 | ||
1272 | static int pcmcia_dev_resume(struct device * dev) | |
1273 | { | |
1274 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1275 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1276 | int ret = 0; |
8e9e793d | 1277 | |
d6b4fa6d DB |
1278 | if (!p_dev->suspended) |
1279 | return 0; | |
1280 | ||
ac449d6e | 1281 | ds_dev_dbg(2, dev, "resuming\n"); |
d9d9ea01 | 1282 | |
8e9e793d DB |
1283 | if (dev->driver) |
1284 | p_drv = to_pcmcia_drv(dev->driver); | |
1285 | ||
e2d40963 DB |
1286 | if (!p_drv) |
1287 | goto out; | |
1288 | ||
1289 | if (p_dev->device_no == p_dev->func) { | |
ac449d6e | 1290 | ds_dev_dbg(2, dev, "requesting configuration\n"); |
e2d40963 DB |
1291 | ret = pcmcia_request_configuration(p_dev, &p_dev->conf); |
1292 | if (ret) | |
1293 | goto out; | |
8661bb5b | 1294 | } |
8e9e793d | 1295 | |
e2d40963 DB |
1296 | if (p_drv->resume) |
1297 | ret = p_drv->resume(p_dev); | |
1298 | ||
f6fbe01a DB |
1299 | out: |
1300 | if (!ret) | |
1301 | p_dev->suspended = 0; | |
1302 | return ret; | |
8e9e793d DB |
1303 | } |
1304 | ||
1305 | ||
1306 | static int pcmcia_bus_suspend_callback(struct device *dev, void * _data) | |
1307 | { | |
1308 | struct pcmcia_socket *skt = _data; | |
1309 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1310 | ||
3f8df781 | 1311 | if (p_dev->socket != skt || p_dev->suspended) |
8e9e793d DB |
1312 | return 0; |
1313 | ||
3f8df781 | 1314 | return runtime_suspend(dev); |
8e9e793d DB |
1315 | } |
1316 | ||
1317 | static int pcmcia_bus_resume_callback(struct device *dev, void * _data) | |
1318 | { | |
1319 | struct pcmcia_socket *skt = _data; | |
1320 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1321 | ||
3f8df781 | 1322 | if (p_dev->socket != skt || !p_dev->suspended) |
8e9e793d DB |
1323 | return 0; |
1324 | ||
3f8df781 | 1325 | runtime_resume(dev); |
8e9e793d DB |
1326 | |
1327 | return 0; | |
1328 | } | |
1329 | ||
1330 | static int pcmcia_bus_resume(struct pcmcia_socket *skt) | |
1331 | { | |
ac449d6e | 1332 | ds_dev_dbg(2, &skt->dev, "resuming socket %d\n", skt->sock); |
8e9e793d DB |
1333 | bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback); |
1334 | return 0; | |
1335 | } | |
1336 | ||
1337 | static int pcmcia_bus_suspend(struct pcmcia_socket *skt) | |
1338 | { | |
ac449d6e | 1339 | ds_dev_dbg(2, &skt->dev, "suspending socket %d\n", skt->sock); |
8e9e793d DB |
1340 | if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt, |
1341 | pcmcia_bus_suspend_callback)) { | |
1342 | pcmcia_bus_resume(skt); | |
1343 | return -EIO; | |
1344 | } | |
1345 | return 0; | |
1346 | } | |
1347 | ||
1da177e4 | 1348 | |
1da177e4 LT |
1349 | /*====================================================================== |
1350 | ||
1351 | The card status event handler. | |
1352 | ||
1353 | ======================================================================*/ | |
1354 | ||
1da177e4 LT |
1355 | /* Normally, the event is passed to individual drivers after |
1356 | * informing userspace. Only for CS_EVENT_CARD_REMOVAL this | |
1357 | * is inversed to maintain historic compatibility. | |
1358 | */ | |
1359 | ||
1360 | static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) | |
1361 | { | |
dc109497 | 1362 | struct pcmcia_socket *s = pcmcia_get_socket(skt); |
1da177e4 | 1363 | |
1617406a | 1364 | if (!s) { |
ac449d6e DB |
1365 | dev_printk(KERN_ERR, &skt->dev, |
1366 | "PCMCIA obtaining reference to socket " \ | |
1367 | "failed, event 0x%x lost!\n", event); | |
1617406a FM |
1368 | return -ENODEV; |
1369 | } | |
1370 | ||
ac449d6e DB |
1371 | ds_dev_dbg(1, &skt->dev, "ds_event(0x%06x, %d, 0x%p)\n", |
1372 | event, priority, skt); | |
1da177e4 | 1373 | |
f8cfa618 | 1374 | switch (event) { |
1da177e4 | 1375 | case CS_EVENT_CARD_REMOVAL: |
b5e43913 | 1376 | s->pcmcia_state.present = 0; |
d6ff5a85 | 1377 | pcmcia_card_remove(skt, NULL); |
dc109497 | 1378 | handle_event(skt, event); |
1da177e4 | 1379 | break; |
f8cfa618 | 1380 | |
1da177e4 | 1381 | case CS_EVENT_CARD_INSERTION: |
b5e43913 | 1382 | s->pcmcia_state.present = 1; |
1da177e4 | 1383 | pcmcia_card_add(skt); |
dc109497 | 1384 | handle_event(skt, event); |
1da177e4 LT |
1385 | break; |
1386 | ||
1387 | case CS_EVENT_EJECTION_REQUEST: | |
1da177e4 LT |
1388 | break; |
1389 | ||
8e9e793d DB |
1390 | case CS_EVENT_PM_SUSPEND: |
1391 | case CS_EVENT_PM_RESUME: | |
1392 | case CS_EVENT_RESET_PHYSICAL: | |
1393 | case CS_EVENT_CARD_RESET: | |
1da177e4 | 1394 | default: |
dc109497 | 1395 | handle_event(skt, event); |
1da177e4 LT |
1396 | break; |
1397 | } | |
1398 | ||
dc109497 DB |
1399 | pcmcia_put_socket(s); |
1400 | ||
1da177e4 LT |
1401 | return 0; |
1402 | } /* ds_event */ | |
1403 | ||
1404 | ||
9940ec36 DB |
1405 | struct pcmcia_device * pcmcia_dev_present(struct pcmcia_device *_p_dev) |
1406 | { | |
1407 | struct pcmcia_device *p_dev; | |
1408 | struct pcmcia_device *ret = NULL; | |
1409 | ||
1410 | p_dev = pcmcia_get_dev(_p_dev); | |
1411 | if (!p_dev) | |
1412 | return NULL; | |
1413 | ||
1414 | if (!p_dev->socket->pcmcia_state.present) | |
1415 | goto out; | |
1416 | ||
1417 | if (p_dev->_removed) | |
1418 | goto out; | |
1419 | ||
1420 | if (p_dev->suspended) | |
1421 | goto out; | |
1422 | ||
1423 | ret = p_dev; | |
1424 | out: | |
1425 | pcmcia_put_dev(p_dev); | |
1426 | return ret; | |
1427 | } | |
1428 | EXPORT_SYMBOL(pcmcia_dev_present); | |
1429 | ||
1430 | ||
90c6cdd1 DB |
1431 | static struct pcmcia_callback pcmcia_bus_callback = { |
1432 | .owner = THIS_MODULE, | |
1433 | .event = ds_event, | |
1434 | .requery = pcmcia_bus_rescan, | |
8e9e793d DB |
1435 | .suspend = pcmcia_bus_suspend, |
1436 | .resume = pcmcia_bus_resume, | |
90c6cdd1 DB |
1437 | }; |
1438 | ||
87373318 | 1439 | static int __devinit pcmcia_bus_add_socket(struct device *dev, |
d8539d81 | 1440 | struct class_interface *class_intf) |
1da177e4 | 1441 | { |
87373318 | 1442 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 LT |
1443 | int ret; |
1444 | ||
dc109497 DB |
1445 | socket = pcmcia_get_socket(socket); |
1446 | if (!socket) { | |
ac449d6e DB |
1447 | dev_printk(KERN_ERR, dev, |
1448 | "PCMCIA obtaining reference to socket failed\n"); | |
1da177e4 LT |
1449 | return -ENODEV; |
1450 | } | |
1451 | ||
1da177e4 LT |
1452 | /* |
1453 | * Ugly. But we want to wait for the socket threads to have started up. | |
1454 | * We really should let the drivers themselves drive some of this.. | |
1455 | */ | |
1456 | msleep(250); | |
1457 | ||
e7a480d2 | 1458 | #ifdef CONFIG_PCMCIA_IOCTL |
dc109497 | 1459 | init_waitqueue_head(&socket->queue); |
e7a480d2 | 1460 | #endif |
dc109497 | 1461 | INIT_LIST_HEAD(&socket->devices_list); |
4796b71f | 1462 | INIT_WORK(&socket->device_add, pcmcia_delayed_add_device); |
dc109497 DB |
1463 | memset(&socket->pcmcia_state, 0, sizeof(u8)); |
1464 | socket->device_count = 0; | |
1da177e4 | 1465 | |
90c6cdd1 | 1466 | ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback); |
1da177e4 | 1467 | if (ret) { |
ac449d6e | 1468 | dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n"); |
dc109497 | 1469 | pcmcia_put_socket(socket); |
1da177e4 LT |
1470 | return (ret); |
1471 | } | |
1472 | ||
1473 | return 0; | |
1474 | } | |
1475 | ||
87373318 | 1476 | static void pcmcia_bus_remove_socket(struct device *dev, |
d8539d81 | 1477 | struct class_interface *class_intf) |
1da177e4 | 1478 | { |
87373318 | 1479 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 | 1480 | |
dc109497 | 1481 | if (!socket) |
1da177e4 LT |
1482 | return; |
1483 | ||
dc109497 | 1484 | socket->pcmcia_state.dead = 1; |
1da177e4 LT |
1485 | pccard_register_pcmcia(socket, NULL); |
1486 | ||
dfbc9e9d | 1487 | /* unregister any unbound devices */ |
8e4d9dcb | 1488 | mutex_lock(&socket->skt_mutex); |
dfbc9e9d | 1489 | pcmcia_card_remove(socket, NULL); |
8e4d9dcb | 1490 | mutex_unlock(&socket->skt_mutex); |
dfbc9e9d | 1491 | |
dc109497 | 1492 | pcmcia_put_socket(socket); |
1da177e4 LT |
1493 | |
1494 | return; | |
1495 | } | |
1496 | ||
1497 | ||
1498 | /* the pcmcia_bus_interface is used to handle pcmcia socket devices */ | |
ed49f5d0 | 1499 | static struct class_interface pcmcia_bus_interface __refdata = { |
1da177e4 | 1500 | .class = &pcmcia_socket_class, |
87373318 GKH |
1501 | .add_dev = &pcmcia_bus_add_socket, |
1502 | .remove_dev = &pcmcia_bus_remove_socket, | |
1da177e4 LT |
1503 | }; |
1504 | ||
1505 | ||
e7a480d2 | 1506 | struct bus_type pcmcia_bus_type = { |
1da177e4 | 1507 | .name = "pcmcia", |
312c004d | 1508 | .uevent = pcmcia_bus_uevent, |
1da177e4 LT |
1509 | .match = pcmcia_bus_match, |
1510 | .dev_attrs = pcmcia_dev_attrs, | |
1d0baa3a RK |
1511 | .probe = pcmcia_device_probe, |
1512 | .remove = pcmcia_device_remove, | |
8e9e793d DB |
1513 | .suspend = pcmcia_dev_suspend, |
1514 | .resume = pcmcia_dev_resume, | |
1da177e4 | 1515 | }; |
1da177e4 LT |
1516 | |
1517 | ||
1518 | static int __init init_pcmcia_bus(void) | |
1519 | { | |
ace7d477 RD |
1520 | int ret; |
1521 | ||
1da177e4 LT |
1522 | spin_lock_init(&pcmcia_dev_list_lock); |
1523 | ||
ace7d477 RD |
1524 | ret = bus_register(&pcmcia_bus_type); |
1525 | if (ret < 0) { | |
1526 | printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret); | |
1527 | return ret; | |
1528 | } | |
1529 | ret = class_interface_register(&pcmcia_bus_interface); | |
1530 | if (ret < 0) { | |
1531 | printk(KERN_WARNING | |
1532 | "pcmcia: class_interface_register error: %d\n", ret); | |
1533 | bus_unregister(&pcmcia_bus_type); | |
1534 | return ret; | |
1535 | } | |
1da177e4 | 1536 | |
e7a480d2 | 1537 | pcmcia_setup_ioctl(); |
1da177e4 LT |
1538 | |
1539 | return 0; | |
1540 | } | |
1541 | fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that | |
1542 | * pcmcia_socket_class is already registered */ | |
1543 | ||
1544 | ||
1545 | static void __exit exit_pcmcia_bus(void) | |
1546 | { | |
e7a480d2 | 1547 | pcmcia_cleanup_ioctl(); |
1da177e4 | 1548 | |
e7a480d2 | 1549 | class_interface_unregister(&pcmcia_bus_interface); |
1da177e4 LT |
1550 | |
1551 | bus_unregister(&pcmcia_bus_type); | |
1552 | } | |
1553 | module_exit(exit_pcmcia_bus); | |
1554 | ||
1555 | ||
1da177e4 | 1556 | MODULE_ALIAS("ds"); |