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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * ds.c -- 16-bit PCMCIA core support | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * The initial developer of the original code is David A. Hinds | |
9 | * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds | |
10 | * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. | |
11 | * | |
12 | * (C) 1999 David A. Hinds | |
8661bb5b | 13 | * (C) 2003 - 2006 Dominik Brodowski |
1da177e4 LT |
14 | */ |
15 | ||
3b659fb8 | 16 | #include <linux/kernel.h> |
1da177e4 | 17 | #include <linux/module.h> |
1da177e4 | 18 | #include <linux/init.h> |
1da177e4 | 19 | #include <linux/errno.h> |
1da177e4 LT |
20 | #include <linux/list.h> |
21 | #include <linux/delay.h> | |
1da177e4 | 22 | #include <linux/workqueue.h> |
840c2ac5 | 23 | #include <linux/crc32.h> |
daa9517d | 24 | #include <linux/firmware.h> |
360b65b9 | 25 | #include <linux/kref.h> |
43d9f7fd | 26 | #include <linux/dma-mapping.h> |
1da177e4 | 27 | |
1da177e4 LT |
28 | #include <pcmcia/cs_types.h> |
29 | #include <pcmcia/cs.h> | |
1da177e4 LT |
30 | #include <pcmcia/cistpl.h> |
31 | #include <pcmcia/ds.h> | |
32 | #include <pcmcia/ss.h> | |
33 | ||
34 | #include "cs_internal.h" | |
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[] = { | |
77 | { CS_SUCCESS, "Operation succeeded" }, | |
1da177e4 LT |
78 | { CS_BAD_ATTRIBUTE, "Bad attribute", }, |
79 | { CS_BAD_BASE, "Bad base address" }, | |
1da177e4 LT |
80 | { CS_BAD_IRQ, "Bad IRQ" }, |
81 | { CS_BAD_OFFSET, "Bad offset" }, | |
82 | { CS_BAD_PAGE, "Bad page number" }, | |
1da177e4 | 83 | { CS_BAD_SIZE, "Bad size" }, |
1da177e4 | 84 | { CS_BAD_TYPE, "Bad type" }, |
d8b0a49d | 85 | { -EIO, "Input/Output error" }, |
3939c1ef | 86 | { -ENODEV, "No card present" }, |
de6405e9 | 87 | { -EINVAL, "Bad parameter" }, |
1da177e4 LT |
88 | { CS_BAD_ARGS, "Bad arguments" }, |
89 | { CS_CONFIGURATION_LOCKED, "Configuration locked" }, | |
90 | { CS_IN_USE, "Resource in use" }, | |
91 | { CS_NO_MORE_ITEMS, "No more items" }, | |
92 | { CS_OUT_OF_RESOURCE, "Out of resource" }, | |
1da177e4 LT |
93 | { CS_BAD_TUPLE, "Bad CIS tuple" } |
94 | }; | |
95 | ||
96 | ||
97 | static const lookup_t service_table[] = { | |
98 | { AccessConfigurationRegister, "AccessConfigurationRegister" }, | |
99 | { AddSocketServices, "AddSocketServices" }, | |
100 | { AdjustResourceInfo, "AdjustResourceInfo" }, | |
101 | { CheckEraseQueue, "CheckEraseQueue" }, | |
102 | { CloseMemory, "CloseMemory" }, | |
103 | { DeregisterClient, "DeregisterClient" }, | |
104 | { DeregisterEraseQueue, "DeregisterEraseQueue" }, | |
105 | { GetCardServicesInfo, "GetCardServicesInfo" }, | |
106 | { GetClientInfo, "GetClientInfo" }, | |
107 | { GetConfigurationInfo, "GetConfigurationInfo" }, | |
108 | { GetEventMask, "GetEventMask" }, | |
109 | { GetFirstClient, "GetFirstClient" }, | |
110 | { GetFirstRegion, "GetFirstRegion" }, | |
111 | { GetFirstTuple, "GetFirstTuple" }, | |
112 | { GetNextClient, "GetNextClient" }, | |
113 | { GetNextRegion, "GetNextRegion" }, | |
114 | { GetNextTuple, "GetNextTuple" }, | |
115 | { GetStatus, "GetStatus" }, | |
116 | { GetTupleData, "GetTupleData" }, | |
117 | { MapMemPage, "MapMemPage" }, | |
118 | { ModifyConfiguration, "ModifyConfiguration" }, | |
119 | { ModifyWindow, "ModifyWindow" }, | |
120 | { OpenMemory, "OpenMemory" }, | |
121 | { ParseTuple, "ParseTuple" }, | |
122 | { ReadMemory, "ReadMemory" }, | |
123 | { RegisterClient, "RegisterClient" }, | |
124 | { RegisterEraseQueue, "RegisterEraseQueue" }, | |
125 | { RegisterMTD, "RegisterMTD" }, | |
126 | { ReleaseConfiguration, "ReleaseConfiguration" }, | |
127 | { ReleaseIO, "ReleaseIO" }, | |
128 | { ReleaseIRQ, "ReleaseIRQ" }, | |
129 | { ReleaseWindow, "ReleaseWindow" }, | |
130 | { RequestConfiguration, "RequestConfiguration" }, | |
131 | { RequestIO, "RequestIO" }, | |
132 | { RequestIRQ, "RequestIRQ" }, | |
133 | { RequestSocketMask, "RequestSocketMask" }, | |
134 | { RequestWindow, "RequestWindow" }, | |
135 | { ResetCard, "ResetCard" }, | |
136 | { SetEventMask, "SetEventMask" }, | |
137 | { ValidateCIS, "ValidateCIS" }, | |
138 | { WriteMemory, "WriteMemory" }, | |
139 | { BindDevice, "BindDevice" }, | |
140 | { BindMTD, "BindMTD" }, | |
141 | { ReportError, "ReportError" }, | |
142 | { SuspendCard, "SuspendCard" }, | |
143 | { ResumeCard, "ResumeCard" }, | |
144 | { EjectCard, "EjectCard" }, | |
145 | { InsertCard, "InsertCard" }, | |
146 | { ReplaceCIS, "ReplaceCIS" } | |
147 | }; | |
148 | ||
149 | ||
2bc5a9bd | 150 | static int pcmcia_report_error(struct pcmcia_device *p_dev, error_info_t *err) |
1da177e4 LT |
151 | { |
152 | int i; | |
153 | char *serv; | |
154 | ||
2bc5a9bd | 155 | if (!p_dev) |
1da177e4 | 156 | printk(KERN_NOTICE); |
2bc5a9bd | 157 | else |
1da177e4 | 158 | printk(KERN_NOTICE "%s: ", p_dev->dev.bus_id); |
1da177e4 LT |
159 | |
160 | for (i = 0; i < ARRAY_SIZE(service_table); i++) | |
161 | if (service_table[i].key == err->func) | |
162 | break; | |
163 | if (i < ARRAY_SIZE(service_table)) | |
164 | serv = service_table[i].msg; | |
165 | else | |
166 | serv = "Unknown service number"; | |
167 | ||
168 | for (i = 0; i < ARRAY_SIZE(error_table); i++) | |
169 | if (error_table[i].key == err->retcode) | |
170 | break; | |
171 | if (i < ARRAY_SIZE(error_table)) | |
172 | printk("%s: %s\n", serv, error_table[i].msg); | |
173 | else | |
174 | printk("%s: Unknown error code %#x\n", serv, err->retcode); | |
175 | ||
4c89e88b | 176 | return 0; |
1da177e4 | 177 | } /* report_error */ |
1da177e4 LT |
178 | |
179 | /* end of code which was in cs.c before */ | |
180 | ||
181 | /*======================================================================*/ | |
182 | ||
2bc5a9bd | 183 | void cs_error(struct pcmcia_device *p_dev, int func, int ret) |
1da177e4 LT |
184 | { |
185 | error_info_t err = { func, ret }; | |
2bc5a9bd | 186 | pcmcia_report_error(p_dev, &err); |
1da177e4 LT |
187 | } |
188 | EXPORT_SYMBOL(cs_error); | |
189 | ||
23a83bfe DB |
190 | |
191 | static void pcmcia_check_driver(struct pcmcia_driver *p_drv) | |
192 | { | |
193 | struct pcmcia_device_id *did = p_drv->id_table; | |
194 | unsigned int i; | |
195 | u32 hash; | |
196 | ||
f8cfa618 | 197 | if (!p_drv->probe || !p_drv->remove) |
ba5bb6b5 PR |
198 | printk(KERN_DEBUG "pcmcia: %s lacks a requisite callback " |
199 | "function\n", p_drv->drv.name); | |
1e212f36 | 200 | |
23a83bfe DB |
201 | while (did && did->match_flags) { |
202 | for (i=0; i<4; i++) { | |
203 | if (!did->prod_id[i]) | |
204 | continue; | |
205 | ||
206 | hash = crc32(0, did->prod_id[i], strlen(did->prod_id[i])); | |
207 | if (hash == did->prod_id_hash[i]) | |
208 | continue; | |
209 | ||
210 | printk(KERN_DEBUG "pcmcia: %s: invalid hash for " | |
211 | "product string \"%s\": is 0x%x, should " | |
212 | "be 0x%x\n", p_drv->drv.name, did->prod_id[i], | |
213 | did->prod_id_hash[i], hash); | |
5085cb26 DB |
214 | printk(KERN_DEBUG "pcmcia: see " |
215 | "Documentation/pcmcia/devicetable.txt for " | |
216 | "details\n"); | |
23a83bfe DB |
217 | } |
218 | did++; | |
219 | } | |
220 | ||
221 | return; | |
222 | } | |
223 | ||
daa9517d | 224 | |
1da177e4 LT |
225 | /*======================================================================*/ |
226 | ||
1da177e4 | 227 | |
6179b556 BW |
228 | struct pcmcia_dynid { |
229 | struct list_head node; | |
230 | struct pcmcia_device_id id; | |
231 | }; | |
232 | ||
233 | /** | |
234 | * pcmcia_store_new_id - add a new PCMCIA device ID to this driver and re-probe devices | |
235 | * @driver: target device driver | |
236 | * @buf: buffer for scanning device ID data | |
237 | * @count: input size | |
238 | * | |
239 | * Adds a new dynamic PCMCIA device ID to this driver, | |
240 | * and causes the driver to probe for all devices again. | |
241 | */ | |
242 | static ssize_t | |
243 | pcmcia_store_new_id(struct device_driver *driver, const char *buf, size_t count) | |
244 | { | |
245 | struct pcmcia_dynid *dynid; | |
246 | struct pcmcia_driver *pdrv = to_pcmcia_drv(driver); | |
247 | __u16 match_flags, manf_id, card_id; | |
248 | __u8 func_id, function, device_no; | |
249 | __u32 prod_id_hash[4] = {0, 0, 0, 0}; | |
250 | int fields=0; | |
251 | int retval = 0; | |
252 | ||
253 | fields = sscanf(buf, "%hx %hx %hx %hhx %hhx %hhx %x %x %x %x", | |
254 | &match_flags, &manf_id, &card_id, &func_id, &function, &device_no, | |
255 | &prod_id_hash[0], &prod_id_hash[1], &prod_id_hash[2], &prod_id_hash[3]); | |
256 | if (fields < 6) | |
257 | return -EINVAL; | |
258 | ||
259 | dynid = kzalloc(sizeof(struct pcmcia_dynid), GFP_KERNEL); | |
260 | if (!dynid) | |
261 | return -ENOMEM; | |
262 | ||
263 | INIT_LIST_HEAD(&dynid->node); | |
264 | dynid->id.match_flags = match_flags; | |
265 | dynid->id.manf_id = manf_id; | |
266 | dynid->id.card_id = card_id; | |
267 | dynid->id.func_id = func_id; | |
268 | dynid->id.function = function; | |
269 | dynid->id.device_no = device_no; | |
270 | memcpy(dynid->id.prod_id_hash, prod_id_hash, sizeof(__u32) * 4); | |
271 | ||
272 | spin_lock(&pdrv->dynids.lock); | |
273 | list_add_tail(&pdrv->dynids.list, &dynid->node); | |
274 | spin_unlock(&pdrv->dynids.lock); | |
275 | ||
276 | if (get_driver(&pdrv->drv)) { | |
277 | retval = driver_attach(&pdrv->drv); | |
278 | put_driver(&pdrv->drv); | |
279 | } | |
280 | ||
281 | if (retval) | |
282 | return retval; | |
283 | return count; | |
284 | } | |
285 | static DRIVER_ATTR(new_id, S_IWUSR, NULL, pcmcia_store_new_id); | |
286 | ||
287 | static void | |
288 | pcmcia_free_dynids(struct pcmcia_driver *drv) | |
289 | { | |
290 | struct pcmcia_dynid *dynid, *n; | |
291 | ||
292 | spin_lock(&drv->dynids.lock); | |
293 | list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) { | |
294 | list_del(&dynid->node); | |
295 | kfree(dynid); | |
296 | } | |
297 | spin_unlock(&drv->dynids.lock); | |
298 | } | |
299 | ||
300 | static int | |
301 | pcmcia_create_newid_file(struct pcmcia_driver *drv) | |
302 | { | |
303 | int error = 0; | |
304 | if (drv->probe != NULL) | |
2344c6de | 305 | error = driver_create_file(&drv->drv, &driver_attr_new_id); |
6179b556 BW |
306 | return error; |
307 | } | |
308 | ||
309 | ||
1da177e4 LT |
310 | /** |
311 | * pcmcia_register_driver - register a PCMCIA driver with the bus core | |
78187865 | 312 | * @driver: the &driver being registered |
1da177e4 LT |
313 | * |
314 | * Registers a PCMCIA driver with the PCMCIA bus core. | |
315 | */ | |
1da177e4 LT |
316 | int pcmcia_register_driver(struct pcmcia_driver *driver) |
317 | { | |
6179b556 BW |
318 | int error; |
319 | ||
1da177e4 LT |
320 | if (!driver) |
321 | return -EINVAL; | |
322 | ||
23a83bfe DB |
323 | pcmcia_check_driver(driver); |
324 | ||
1da177e4 LT |
325 | /* initialize common fields */ |
326 | driver->drv.bus = &pcmcia_bus_type; | |
327 | driver->drv.owner = driver->owner; | |
6179b556 BW |
328 | spin_lock_init(&driver->dynids.lock); |
329 | INIT_LIST_HEAD(&driver->dynids.list); | |
1da177e4 | 330 | |
d9d9ea01 DB |
331 | ds_dbg(3, "registering driver %s\n", driver->drv.name); |
332 | ||
6179b556 BW |
333 | error = driver_register(&driver->drv); |
334 | if (error < 0) | |
335 | return error; | |
336 | ||
337 | error = pcmcia_create_newid_file(driver); | |
338 | if (error) | |
339 | driver_unregister(&driver->drv); | |
340 | ||
341 | return error; | |
1da177e4 LT |
342 | } |
343 | EXPORT_SYMBOL(pcmcia_register_driver); | |
344 | ||
345 | /** | |
346 | * pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core | |
78187865 | 347 | * @driver: the &driver being unregistered |
1da177e4 LT |
348 | */ |
349 | void pcmcia_unregister_driver(struct pcmcia_driver *driver) | |
350 | { | |
d9d9ea01 | 351 | ds_dbg(3, "unregistering driver %s\n", driver->drv.name); |
1da177e4 | 352 | driver_unregister(&driver->drv); |
6179b556 | 353 | pcmcia_free_dynids(driver); |
1da177e4 LT |
354 | } |
355 | EXPORT_SYMBOL(pcmcia_unregister_driver); | |
356 | ||
1da177e4 LT |
357 | |
358 | /* pcmcia_device handling */ | |
359 | ||
e7a480d2 | 360 | struct pcmcia_device * pcmcia_get_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
361 | { |
362 | struct device *tmp_dev; | |
363 | tmp_dev = get_device(&p_dev->dev); | |
364 | if (!tmp_dev) | |
365 | return NULL; | |
366 | return to_pcmcia_dev(tmp_dev); | |
367 | } | |
368 | ||
e7a480d2 | 369 | void pcmcia_put_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
370 | { |
371 | if (p_dev) | |
372 | put_device(&p_dev->dev); | |
373 | } | |
374 | ||
360b65b9 DB |
375 | static void pcmcia_release_function(struct kref *ref) |
376 | { | |
377 | struct config_t *c = container_of(ref, struct config_t, ref); | |
d9d9ea01 | 378 | ds_dbg(1, "releasing config_t\n"); |
360b65b9 DB |
379 | kfree(c); |
380 | } | |
381 | ||
1da177e4 LT |
382 | static void pcmcia_release_dev(struct device *dev) |
383 | { | |
384 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
ac449d6e | 385 | ds_dev_dbg(1, dev, "releasing device\n"); |
dc109497 | 386 | pcmcia_put_socket(p_dev->socket); |
bd65a685 | 387 | kfree(p_dev->devname); |
360b65b9 | 388 | kref_put(&p_dev->function_config->ref, pcmcia_release_function); |
1da177e4 LT |
389 | kfree(p_dev); |
390 | } | |
391 | ||
1d2c9042 | 392 | static void pcmcia_add_device_later(struct pcmcia_socket *s, int mfc) |
82d56e6d DB |
393 | { |
394 | if (!s->pcmcia_state.device_add_pending) { | |
ac449d6e | 395 | ds_dev_dbg(1, &s->dev, "scheduling to add %s secondary" |
d9d9ea01 | 396 | " device to %d\n", mfc ? "mfc" : "pfc", s->sock); |
82d56e6d | 397 | s->pcmcia_state.device_add_pending = 1; |
1d2c9042 | 398 | s->pcmcia_state.mfc_pfc = mfc; |
82d56e6d DB |
399 | schedule_work(&s->device_add); |
400 | } | |
401 | return; | |
402 | } | |
1da177e4 LT |
403 | |
404 | static int pcmcia_device_probe(struct device * dev) | |
405 | { | |
406 | struct pcmcia_device *p_dev; | |
407 | struct pcmcia_driver *p_drv; | |
82d56e6d | 408 | struct pcmcia_device_id *did; |
f8cfa618 | 409 | struct pcmcia_socket *s; |
af2b3b50 | 410 | cistpl_config_t cis_config; |
1da177e4 LT |
411 | int ret = 0; |
412 | ||
413 | dev = get_device(dev); | |
414 | if (!dev) | |
415 | return -ENODEV; | |
416 | ||
417 | p_dev = to_pcmcia_dev(dev); | |
418 | p_drv = to_pcmcia_drv(dev->driver); | |
f8cfa618 | 419 | s = p_dev->socket; |
1da177e4 | 420 | |
ac449d6e | 421 | ds_dev_dbg(1, dev, "trying to bind to %s\n", p_drv->drv.name); |
d9d9ea01 | 422 | |
360b65b9 DB |
423 | if ((!p_drv->probe) || (!p_dev->function_config) || |
424 | (!try_module_get(p_drv->owner))) { | |
1da177e4 LT |
425 | ret = -EINVAL; |
426 | goto put_dev; | |
427 | } | |
428 | ||
af2b3b50 DB |
429 | /* set up some more device information */ |
430 | ret = pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_CONFIG, | |
431 | &cis_config); | |
432 | if (!ret) { | |
433 | p_dev->conf.ConfigBase = cis_config.base; | |
434 | p_dev->conf.Present = cis_config.rmask[0]; | |
435 | } else { | |
ac449d6e DB |
436 | dev_printk(KERN_INFO, dev, |
437 | "pcmcia: could not parse base and rmask0 of CIS\n"); | |
af2b3b50 DB |
438 | p_dev->conf.ConfigBase = 0; |
439 | p_dev->conf.Present = 0; | |
440 | } | |
441 | ||
f8cfa618 | 442 | ret = p_drv->probe(p_dev); |
d9d9ea01 | 443 | if (ret) { |
ac449d6e DB |
444 | ds_dev_dbg(1, dev, "binding to %s failed with %d\n", |
445 | p_drv->drv.name, ret); | |
82d56e6d | 446 | goto put_module; |
d9d9ea01 | 447 | } |
82d56e6d DB |
448 | |
449 | /* handle pseudo multifunction devices: | |
450 | * there are at most two pseudo multifunction devices. | |
451 | * if we're matching against the first, schedule a | |
452 | * call which will then check whether there are two | |
453 | * pseudo devices, and if not, add the second one. | |
454 | */ | |
80a55e92 | 455 | did = p_dev->dev.driver_data; |
4ceadbf5 | 456 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
82d56e6d | 457 | (p_dev->socket->device_count == 1) && (p_dev->device_no == 0)) |
1d2c9042 | 458 | pcmcia_add_device_later(p_dev->socket, 0); |
f8cfa618 DB |
459 | |
460 | put_module: | |
1da177e4 LT |
461 | if (ret) |
462 | module_put(p_drv->owner); | |
463 | put_dev: | |
f8cfa618 | 464 | if (ret) |
1da177e4 LT |
465 | put_device(dev); |
466 | return (ret); | |
467 | } | |
468 | ||
469 | ||
d6ff5a85 DB |
470 | /* |
471 | * Removes a PCMCIA card from the device tree and socket list. | |
472 | */ | |
473 | static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *leftover) | |
474 | { | |
475 | struct pcmcia_device *p_dev; | |
476 | struct pcmcia_device *tmp; | |
477 | unsigned long flags; | |
478 | ||
ac449d6e DB |
479 | ds_dev_dbg(2, leftover ? &leftover->dev : &s->dev, |
480 | "pcmcia_card_remove(%d) %s\n", s->sock, | |
481 | leftover ? leftover->devname : ""); | |
d6ff5a85 DB |
482 | |
483 | if (!leftover) | |
484 | s->device_count = 0; | |
485 | else | |
486 | s->device_count = 1; | |
487 | ||
488 | /* unregister all pcmcia_devices registered with this socket, except leftover */ | |
489 | list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) { | |
490 | if (p_dev == leftover) | |
491 | continue; | |
492 | ||
493 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
494 | list_del(&p_dev->socket_device_list); | |
495 | p_dev->_removed=1; | |
496 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
497 | ||
ac449d6e | 498 | ds_dev_dbg(2, &p_dev->dev, "unregistering device\n"); |
d6ff5a85 DB |
499 | device_unregister(&p_dev->dev); |
500 | } | |
501 | ||
502 | return; | |
503 | } | |
504 | ||
1da177e4 LT |
505 | static int pcmcia_device_remove(struct device * dev) |
506 | { | |
507 | struct pcmcia_device *p_dev; | |
508 | struct pcmcia_driver *p_drv; | |
d6ff5a85 | 509 | struct pcmcia_device_id *did; |
cc3b4866 | 510 | int i; |
1da177e4 | 511 | |
1da177e4 LT |
512 | p_dev = to_pcmcia_dev(dev); |
513 | p_drv = to_pcmcia_drv(dev->driver); | |
d6ff5a85 | 514 | |
ac449d6e | 515 | ds_dev_dbg(1, dev, "removing device\n"); |
d9d9ea01 | 516 | |
d6ff5a85 DB |
517 | /* If we're removing the primary module driving a |
518 | * pseudo multi-function card, we need to unbind | |
519 | * all devices | |
520 | */ | |
80a55e92 | 521 | did = p_dev->dev.driver_data; |
b2f51a1c | 522 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
d6ff5a85 DB |
523 | (p_dev->socket->device_count != 0) && |
524 | (p_dev->device_no == 0)) | |
525 | pcmcia_card_remove(p_dev->socket, p_dev); | |
526 | ||
527 | /* detach the "instance" */ | |
f3990715 DB |
528 | if (!p_drv) |
529 | return 0; | |
1da177e4 | 530 | |
f3990715 | 531 | if (p_drv->remove) |
cc3b4866 DB |
532 | p_drv->remove(p_dev); |
533 | ||
a0aab143 DB |
534 | p_dev->dev_node = NULL; |
535 | ||
f3990715 | 536 | /* check for proper unloading */ |
e2d40963 | 537 | if (p_dev->_irq || p_dev->_io || p_dev->_locked) |
ac449d6e DB |
538 | dev_printk(KERN_INFO, dev, |
539 | "pcmcia: driver %s did not release config properly\n", | |
540 | p_drv->drv.name); | |
cc3b4866 | 541 | |
f3990715 | 542 | for (i = 0; i < MAX_WIN; i++) |
e2d40963 | 543 | if (p_dev->_win & CLIENT_WIN_REQ(i)) |
ac449d6e DB |
544 | dev_printk(KERN_INFO, dev, |
545 | "pcmcia: driver %s did not release window properly\n", | |
546 | p_drv->drv.name); | |
cc3b4866 | 547 | |
f3990715 DB |
548 | /* references from pcmcia_probe_device */ |
549 | pcmcia_put_dev(p_dev); | |
550 | module_put(p_drv->owner); | |
1da177e4 LT |
551 | |
552 | return 0; | |
553 | } | |
554 | ||
555 | ||
1da177e4 LT |
556 | /* |
557 | * pcmcia_device_query -- determine information about a pcmcia device | |
558 | */ | |
559 | static int pcmcia_device_query(struct pcmcia_device *p_dev) | |
560 | { | |
561 | cistpl_manfid_t manf_id; | |
562 | cistpl_funcid_t func_id; | |
76fa82fb | 563 | cistpl_vers_1_t *vers1; |
1da177e4 LT |
564 | unsigned int i; |
565 | ||
76fa82fb IM |
566 | vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL); |
567 | if (!vers1) | |
568 | return -ENOMEM; | |
569 | ||
1da177e4 LT |
570 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
571 | CISTPL_MANFID, &manf_id)) { | |
572 | p_dev->manf_id = manf_id.manf; | |
573 | p_dev->card_id = manf_id.card; | |
574 | p_dev->has_manf_id = 1; | |
575 | p_dev->has_card_id = 1; | |
576 | } | |
577 | ||
578 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, | |
579 | CISTPL_FUNCID, &func_id)) { | |
580 | p_dev->func_id = func_id.func; | |
581 | p_dev->has_func_id = 1; | |
582 | } else { | |
583 | /* rule of thumb: cards with no FUNCID, but with | |
584 | * common memory device geometry information, are | |
585 | * probably memory cards (from pcmcia-cs) */ | |
76fa82fb IM |
586 | cistpl_device_geo_t *devgeo; |
587 | ||
588 | devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL); | |
589 | if (!devgeo) { | |
590 | kfree(vers1); | |
591 | return -ENOMEM; | |
592 | } | |
1da177e4 | 593 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
76fa82fb | 594 | CISTPL_DEVICE_GEO, devgeo)) { |
ac449d6e DB |
595 | ds_dev_dbg(0, &p_dev->dev, |
596 | "mem device geometry probably means " | |
597 | "FUNCID_MEMORY\n"); | |
1da177e4 LT |
598 | p_dev->func_id = CISTPL_FUNCID_MEMORY; |
599 | p_dev->has_func_id = 1; | |
600 | } | |
76fa82fb | 601 | kfree(devgeo); |
1da177e4 LT |
602 | } |
603 | ||
604 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_VERS_1, | |
76fa82fb IM |
605 | vers1)) { |
606 | for (i=0; i < vers1->ns; i++) { | |
1da177e4 LT |
607 | char *tmp; |
608 | unsigned int length; | |
609 | ||
76fa82fb | 610 | tmp = vers1->str + vers1->ofs[i]; |
1da177e4 LT |
611 | |
612 | length = strlen(tmp) + 1; | |
6e3d4f25 | 613 | if ((length < 2) || (length > 255)) |
1da177e4 LT |
614 | continue; |
615 | ||
616 | p_dev->prod_id[i] = kmalloc(sizeof(char) * length, | |
617 | GFP_KERNEL); | |
618 | if (!p_dev->prod_id[i]) | |
619 | continue; | |
620 | ||
621 | p_dev->prod_id[i] = strncpy(p_dev->prod_id[i], | |
622 | tmp, length); | |
623 | } | |
624 | } | |
625 | ||
76fa82fb | 626 | kfree(vers1); |
1da177e4 LT |
627 | return 0; |
628 | } | |
629 | ||
630 | ||
631 | /* device_add_lock is needed to avoid double registration by cardmgr and kernel. | |
632 | * Serializes pcmcia_device_add; will most likely be removed in future. | |
633 | * | |
634 | * While it has the caveat that adding new PCMCIA devices inside(!) device_register() | |
635 | * won't work, this doesn't matter much at the moment: the driver core doesn't | |
636 | * support it either. | |
637 | */ | |
7fe908dd | 638 | static DEFINE_MUTEX(device_add_lock); |
1da177e4 | 639 | |
dc109497 | 640 | struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function) |
1da177e4 | 641 | { |
360b65b9 | 642 | struct pcmcia_device *p_dev, *tmp_dev; |
1da177e4 | 643 | unsigned long flags; |
bd65a685 | 644 | int bus_id_len; |
1da177e4 | 645 | |
dc109497 | 646 | s = pcmcia_get_socket(s); |
1da177e4 LT |
647 | if (!s) |
648 | return NULL; | |
649 | ||
7fe908dd | 650 | mutex_lock(&device_add_lock); |
1da177e4 | 651 | |
d9d9ea01 DB |
652 | ds_dbg(3, "adding device to %d, function %d\n", s->sock, function); |
653 | ||
6cf5be51 DB |
654 | /* max of 4 devices per card */ |
655 | if (s->device_count == 4) | |
1ad275e3 DB |
656 | goto err_put; |
657 | ||
8084b372 | 658 | p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL); |
1da177e4 LT |
659 | if (!p_dev) |
660 | goto err_put; | |
1da177e4 | 661 | |
dc109497 | 662 | p_dev->socket = s; |
1da177e4 LT |
663 | p_dev->device_no = (s->device_count++); |
664 | p_dev->func = function; | |
665 | ||
666 | p_dev->dev.bus = &pcmcia_bus_type; | |
87373318 | 667 | p_dev->dev.parent = s->dev.parent; |
1da177e4 | 668 | p_dev->dev.release = pcmcia_release_dev; |
43d9f7fd JB |
669 | /* by default don't allow DMA */ |
670 | p_dev->dma_mask = DMA_MASK_NONE; | |
671 | p_dev->dev.dma_mask = &p_dev->dma_mask; | |
bd65a685 BG |
672 | bus_id_len = sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no); |
673 | ||
674 | p_dev->devname = kmalloc(6 + bus_id_len + 1, GFP_KERNEL); | |
675 | if (!p_dev->devname) | |
676 | goto err_free; | |
677 | sprintf (p_dev->devname, "pcmcia%s", p_dev->dev.bus_id); | |
ac449d6e | 678 | ds_dev_dbg(3, &p_dev->dev, "devname is %s\n", p_dev->devname); |
1da177e4 | 679 | |
1da177e4 | 680 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
360b65b9 DB |
681 | |
682 | /* | |
683 | * p_dev->function_config must be the same for all card functions. | |
684 | * Note that this is serialized by the device_add_lock, so that | |
685 | * only one such struct will be created. | |
686 | */ | |
687 | list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list) | |
688 | if (p_dev->func == tmp_dev->func) { | |
689 | p_dev->function_config = tmp_dev->function_config; | |
690 | kref_get(&p_dev->function_config->ref); | |
691 | } | |
692 | ||
693 | /* Add to the list in pcmcia_bus_socket */ | |
6171b88b | 694 | list_add(&p_dev->socket_device_list, &s->devices_list); |
360b65b9 | 695 | |
1da177e4 LT |
696 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
697 | ||
360b65b9 | 698 | if (!p_dev->function_config) { |
ac449d6e | 699 | ds_dev_dbg(3, &p_dev->dev, "creating config_t\n"); |
360b65b9 DB |
700 | p_dev->function_config = kzalloc(sizeof(struct config_t), |
701 | GFP_KERNEL); | |
702 | if (!p_dev->function_config) | |
703 | goto err_unreg; | |
704 | kref_init(&p_dev->function_config->ref); | |
705 | } | |
706 | ||
ac449d6e DB |
707 | dev_printk(KERN_NOTICE, &p_dev->dev, |
708 | "pcmcia: registering new device %s\n", | |
709 | p_dev->devname); | |
807277cb | 710 | |
1ad275e3 DB |
711 | pcmcia_device_query(p_dev); |
712 | ||
360b65b9 DB |
713 | if (device_register(&p_dev->dev)) |
714 | goto err_unreg; | |
1da177e4 | 715 | |
7fe908dd | 716 | mutex_unlock(&device_add_lock); |
1da177e4 LT |
717 | |
718 | return p_dev; | |
719 | ||
360b65b9 DB |
720 | err_unreg: |
721 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
722 | list_del(&p_dev->socket_device_list); | |
723 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
724 | ||
1da177e4 | 725 | err_free: |
bd65a685 | 726 | kfree(p_dev->devname); |
1da177e4 LT |
727 | kfree(p_dev); |
728 | s->device_count--; | |
729 | err_put: | |
7fe908dd | 730 | mutex_unlock(&device_add_lock); |
dc109497 | 731 | pcmcia_put_socket(s); |
1da177e4 LT |
732 | |
733 | return NULL; | |
734 | } | |
735 | ||
736 | ||
737 | static int pcmcia_card_add(struct pcmcia_socket *s) | |
738 | { | |
1da177e4 | 739 | cistpl_longlink_mfc_t mfc; |
c5081d5f | 740 | unsigned int no_funcs, i, no_chains; |
1da177e4 LT |
741 | int ret = 0; |
742 | ||
d9d9ea01 | 743 | if (!(s->resource_setup_done)) { |
ac449d6e DB |
744 | ds_dev_dbg(3, &s->dev, |
745 | "no resources available, delaying card_add\n"); | |
1da177e4 | 746 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 747 | } |
1da177e4 | 748 | |
d9d9ea01 | 749 | if (pcmcia_validate_mem(s)) { |
ac449d6e | 750 | ds_dev_dbg(3, &s->dev, "validating mem resources failed, " |
d9d9ea01 | 751 | "delaying card_add\n"); |
de75914e | 752 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 753 | } |
de75914e | 754 | |
c5081d5f DB |
755 | ret = pccard_validate_cis(s, BIND_FN_ALL, &no_chains); |
756 | if (ret || !no_chains) { | |
ac449d6e | 757 | ds_dev_dbg(0, &s->dev, "invalid CIS or invalid resources\n"); |
1da177e4 LT |
758 | return -ENODEV; |
759 | } | |
760 | ||
761 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
762 | no_funcs = mfc.nfn; | |
763 | else | |
764 | no_funcs = 1; | |
1d2c9042 | 765 | s->functions = no_funcs; |
1da177e4 | 766 | |
1da177e4 | 767 | for (i=0; i < no_funcs; i++) |
dc109497 | 768 | pcmcia_device_add(s, i); |
1da177e4 LT |
769 | |
770 | return (ret); | |
771 | } | |
772 | ||
773 | ||
4796b71f | 774 | static void pcmcia_delayed_add_device(struct work_struct *work) |
1ad275e3 | 775 | { |
c4028958 DH |
776 | struct pcmcia_socket *s = |
777 | container_of(work, struct pcmcia_socket, device_add); | |
ac449d6e | 778 | ds_dev_dbg(1, &s->dev, "adding additional device to %d\n", s->sock); |
1d2c9042 | 779 | pcmcia_device_add(s, s->pcmcia_state.mfc_pfc); |
b5e43913 | 780 | s->pcmcia_state.device_add_pending = 0; |
1d2c9042 | 781 | s->pcmcia_state.mfc_pfc = 0; |
1ad275e3 DB |
782 | } |
783 | ||
e2f0b534 | 784 | static int pcmcia_requery(struct device *dev, void * _data) |
ff1fa9ef | 785 | { |
e2f0b534 | 786 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
d9d9ea01 | 787 | if (!p_dev->dev.driver) { |
ac449d6e | 788 | ds_dev_dbg(1, dev, "update device information\n"); |
e2f0b534 | 789 | pcmcia_device_query(p_dev); |
d9d9ea01 | 790 | } |
e2f0b534 DB |
791 | |
792 | return 0; | |
793 | } | |
794 | ||
4ae1cbf1 | 795 | static void pcmcia_bus_rescan(struct pcmcia_socket *skt, int new_cis) |
e2f0b534 | 796 | { |
4ae1cbf1 | 797 | int no_devices = 0; |
f901b8c4 | 798 | int ret = 0; |
e2f0b534 DB |
799 | unsigned long flags; |
800 | ||
7fe908dd | 801 | /* must be called with skt_mutex held */ |
ac449d6e | 802 | ds_dev_dbg(0, &skt->dev, "re-scanning socket %d\n", skt->sock); |
d9d9ea01 | 803 | |
e2f0b534 | 804 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
dc109497 | 805 | if (list_empty(&skt->devices_list)) |
4ae1cbf1 | 806 | no_devices = 1; |
e2f0b534 DB |
807 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
808 | ||
4ae1cbf1 DB |
809 | /* If this is because of a CIS override, start over */ |
810 | if (new_cis && !no_devices) | |
811 | pcmcia_card_remove(skt, NULL); | |
812 | ||
e2f0b534 DB |
813 | /* if no devices were added for this socket yet because of |
814 | * missing resource information or other trouble, we need to | |
815 | * do this now. */ | |
4ae1cbf1 | 816 | if (no_devices || new_cis) { |
f901b8c4 | 817 | ret = pcmcia_card_add(skt); |
e2f0b534 DB |
818 | if (ret) |
819 | return; | |
820 | } | |
821 | ||
822 | /* some device information might have changed because of a CIS | |
823 | * update or because we can finally read it correctly... so | |
824 | * determine it again, overwriting old values if necessary. */ | |
825 | bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery); | |
826 | ||
827 | /* we re-scan all devices, not just the ones connected to this | |
828 | * socket. This does not matter, though. */ | |
f901b8c4 DB |
829 | ret = bus_rescan_devices(&pcmcia_bus_type); |
830 | if (ret) | |
831 | printk(KERN_INFO "pcmcia: bus_rescan_devices failed\n"); | |
ff1fa9ef | 832 | } |
1ad275e3 | 833 | |
1d2c9042 DB |
834 | #ifdef CONFIG_PCMCIA_LOAD_CIS |
835 | ||
836 | /** | |
837 | * pcmcia_load_firmware - load CIS from userspace if device-provided is broken | |
78187865 RD |
838 | * @dev: the pcmcia device which needs a CIS override |
839 | * @filename: requested filename in /lib/firmware/ | |
1d2c9042 DB |
840 | * |
841 | * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if | |
842 | * the one provided by the card is broken. The firmware files reside in | |
843 | * /lib/firmware/ in userspace. | |
844 | */ | |
845 | static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
846 | { | |
847 | struct pcmcia_socket *s = dev->socket; | |
848 | const struct firmware *fw; | |
feda4f2c | 849 | char path[FIRMWARE_NAME_MAX]; |
1d2c9042 DB |
850 | int ret = -ENOMEM; |
851 | int no_funcs; | |
852 | int old_funcs; | |
1d2c9042 DB |
853 | cistpl_longlink_mfc_t mfc; |
854 | ||
855 | if (!filename) | |
856 | return -EINVAL; | |
857 | ||
ac449d6e | 858 | ds_dev_dbg(1, &dev->dev, "trying to load CIS file %s\n", filename); |
1d2c9042 | 859 | |
feda4f2c | 860 | if (strlen(filename) > (FIRMWARE_NAME_MAX - 1)) { |
ac449d6e DB |
861 | dev_printk(KERN_WARNING, &dev->dev, |
862 | "pcmcia: CIS filename is too long [%s]\n", | |
863 | filename); | |
1d2c9042 | 864 | return -EINVAL; |
d9d9ea01 | 865 | } |
1d2c9042 | 866 | |
52debb06 | 867 | snprintf(path, sizeof(path), "%s", filename); |
1d2c9042 DB |
868 | |
869 | if (request_firmware(&fw, path, &dev->dev) == 0) { | |
d9d9ea01 DB |
870 | if (fw->size >= CISTPL_MAX_CIS_SIZE) { |
871 | ret = -EINVAL; | |
ac449d6e DB |
872 | dev_printk(KERN_ERR, &dev->dev, |
873 | "pcmcia: CIS override is too big\n"); | |
1d2c9042 | 874 | goto release; |
d9d9ea01 | 875 | } |
1d2c9042 | 876 | |
53efec95 | 877 | if (!pcmcia_replace_cis(s, fw->data, fw->size)) |
1d2c9042 | 878 | ret = 0; |
d9d9ea01 | 879 | else { |
ac449d6e DB |
880 | dev_printk(KERN_ERR, &dev->dev, |
881 | "pcmcia: CIS override failed\n"); | |
d9d9ea01 DB |
882 | goto release; |
883 | } | |
884 | ||
1d2c9042 DB |
885 | |
886 | /* update information */ | |
887 | pcmcia_device_query(dev); | |
888 | ||
889 | /* does this cis override add or remove functions? */ | |
890 | old_funcs = s->functions; | |
891 | ||
892 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
893 | no_funcs = mfc.nfn; | |
894 | else | |
895 | no_funcs = 1; | |
896 | s->functions = no_funcs; | |
897 | ||
898 | if (old_funcs > no_funcs) | |
899 | pcmcia_card_remove(s, dev); | |
900 | else if (no_funcs > old_funcs) | |
901 | pcmcia_add_device_later(s, 1); | |
902 | } | |
903 | release: | |
904 | release_firmware(fw); | |
905 | ||
906 | return (ret); | |
907 | } | |
908 | ||
909 | #else /* !CONFIG_PCMCIA_LOAD_CIS */ | |
910 | ||
911 | static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
912 | { | |
913 | return -ENODEV; | |
914 | } | |
915 | ||
916 | #endif | |
917 | ||
918 | ||
1ad275e3 DB |
919 | static inline int pcmcia_devmatch(struct pcmcia_device *dev, |
920 | struct pcmcia_device_id *did) | |
921 | { | |
922 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) { | |
923 | if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id)) | |
924 | return 0; | |
925 | } | |
926 | ||
927 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) { | |
928 | if ((!dev->has_card_id) || (dev->card_id != did->card_id)) | |
929 | return 0; | |
930 | } | |
931 | ||
932 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) { | |
933 | if (dev->func != did->function) | |
934 | return 0; | |
935 | } | |
936 | ||
937 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) { | |
938 | if (!dev->prod_id[0]) | |
939 | return 0; | |
940 | if (strcmp(did->prod_id[0], dev->prod_id[0])) | |
941 | return 0; | |
942 | } | |
943 | ||
944 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) { | |
945 | if (!dev->prod_id[1]) | |
946 | return 0; | |
947 | if (strcmp(did->prod_id[1], dev->prod_id[1])) | |
948 | return 0; | |
949 | } | |
950 | ||
951 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) { | |
952 | if (!dev->prod_id[2]) | |
953 | return 0; | |
954 | if (strcmp(did->prod_id[2], dev->prod_id[2])) | |
955 | return 0; | |
956 | } | |
957 | ||
958 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) { | |
959 | if (!dev->prod_id[3]) | |
960 | return 0; | |
961 | if (strcmp(did->prod_id[3], dev->prod_id[3])) | |
962 | return 0; | |
963 | } | |
964 | ||
965 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { | |
1ad275e3 DB |
966 | if (dev->device_no != did->device_no) |
967 | return 0; | |
968 | } | |
969 | ||
970 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { | |
971 | if ((!dev->has_func_id) || (dev->func_id != did->func_id)) | |
972 | return 0; | |
973 | ||
974 | /* if this is a pseudo-multi-function device, | |
975 | * we need explicit matches */ | |
976 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) | |
977 | return 0; | |
978 | if (dev->device_no) | |
979 | return 0; | |
980 | ||
981 | /* also, FUNC_ID matching needs to be activated by userspace | |
982 | * after it has re-checked that there is no possible module | |
983 | * with a prod_id/manf_id/card_id match. | |
984 | */ | |
ac449d6e DB |
985 | ds_dev_dbg(0, &dev->dev, |
986 | "skipping FUNC_ID match until userspace interaction\n"); | |
1ad275e3 DB |
987 | if (!dev->allow_func_id_match) |
988 | return 0; | |
989 | } | |
990 | ||
ea7b3882 | 991 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { |
ac449d6e | 992 | ds_dev_dbg(0, &dev->dev, "device needs a fake CIS\n"); |
daa9517d DB |
993 | if (!dev->socket->fake_cis) |
994 | pcmcia_load_firmware(dev, did->cisfile); | |
995 | ||
996 | if (!dev->socket->fake_cis) | |
ea7b3882 | 997 | return 0; |
ea7b3882 DB |
998 | } |
999 | ||
f602ff7e DB |
1000 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { |
1001 | int i; | |
1002 | for (i=0; i<4; i++) | |
1003 | if (dev->prod_id[i]) | |
1004 | return 0; | |
1005 | if (dev->has_manf_id || dev->has_card_id || dev->has_func_id) | |
1006 | return 0; | |
1007 | } | |
1008 | ||
1ad275e3 DB |
1009 | dev->dev.driver_data = (void *) did; |
1010 | ||
1011 | return 1; | |
1012 | } | |
1013 | ||
1014 | ||
1da177e4 LT |
1015 | static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) { |
1016 | struct pcmcia_device * p_dev = to_pcmcia_dev(dev); | |
1017 | struct pcmcia_driver * p_drv = to_pcmcia_drv(drv); | |
1ad275e3 | 1018 | struct pcmcia_device_id *did = p_drv->id_table; |
6179b556 BW |
1019 | struct pcmcia_dynid *dynid; |
1020 | ||
1021 | /* match dynamic devices first */ | |
1022 | spin_lock(&p_drv->dynids.lock); | |
1023 | list_for_each_entry(dynid, &p_drv->dynids.list, node) { | |
ac449d6e | 1024 | ds_dev_dbg(3, dev, "trying to match to %s\n", drv->name); |
6179b556 | 1025 | if (pcmcia_devmatch(p_dev, &dynid->id)) { |
ac449d6e | 1026 | ds_dev_dbg(0, dev, "matched to %s\n", drv->name); |
6179b556 BW |
1027 | spin_unlock(&p_drv->dynids.lock); |
1028 | return 1; | |
1029 | } | |
1030 | } | |
1031 | spin_unlock(&p_drv->dynids.lock); | |
1da177e4 | 1032 | |
0e0fad8f | 1033 | #ifdef CONFIG_PCMCIA_IOCTL |
1da177e4 | 1034 | /* matching by cardmgr */ |
d9d9ea01 | 1035 | if (p_dev->cardmgr == p_drv) { |
ac449d6e | 1036 | ds_dev_dbg(0, dev, "cardmgr matched to %s\n", drv->name); |
1da177e4 | 1037 | return 1; |
d9d9ea01 | 1038 | } |
0e0fad8f | 1039 | #endif |
1da177e4 | 1040 | |
1ad275e3 | 1041 | while (did && did->match_flags) { |
ac449d6e | 1042 | ds_dev_dbg(3, dev, "trying to match to %s\n", drv->name); |
d9d9ea01 | 1043 | if (pcmcia_devmatch(p_dev, did)) { |
ac449d6e | 1044 | ds_dev_dbg(0, dev, "matched to %s\n", drv->name); |
1ad275e3 | 1045 | return 1; |
d9d9ea01 | 1046 | } |
1ad275e3 DB |
1047 | did++; |
1048 | } | |
1049 | ||
1da177e4 LT |
1050 | return 0; |
1051 | } | |
1052 | ||
840c2ac5 DB |
1053 | #ifdef CONFIG_HOTPLUG |
1054 | ||
7eff2e7a | 1055 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
1056 | { |
1057 | struct pcmcia_device *p_dev; | |
7eff2e7a | 1058 | int i; |
840c2ac5 DB |
1059 | u32 hash[4] = { 0, 0, 0, 0}; |
1060 | ||
1061 | if (!dev) | |
1062 | return -ENODEV; | |
1063 | ||
1064 | p_dev = to_pcmcia_dev(dev); | |
1065 | ||
1066 | /* calculate hashes */ | |
1067 | for (i=0; i<4; i++) { | |
1068 | if (!p_dev->prod_id[i]) | |
1069 | continue; | |
1070 | hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); | |
1071 | } | |
1072 | ||
7eff2e7a | 1073 | if (add_uevent_var(env, "SOCKET_NO=%u", p_dev->socket->sock)) |
840c2ac5 DB |
1074 | return -ENOMEM; |
1075 | ||
7eff2e7a | 1076 | if (add_uevent_var(env, "DEVICE_NO=%02X", p_dev->device_no)) |
840c2ac5 DB |
1077 | return -ENOMEM; |
1078 | ||
7eff2e7a | 1079 | if (add_uevent_var(env, "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" |
312c004d KS |
1080 | "pa%08Xpb%08Xpc%08Xpd%08X", |
1081 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1082 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1083 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1084 | p_dev->func, | |
1085 | p_dev->device_no, | |
1086 | hash[0], | |
1087 | hash[1], | |
1088 | hash[2], | |
1089 | hash[3])) | |
840c2ac5 DB |
1090 | return -ENOMEM; |
1091 | ||
840c2ac5 DB |
1092 | return 0; |
1093 | } | |
1094 | ||
1095 | #else | |
1096 | ||
7eff2e7a | 1097 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
1098 | { |
1099 | return -ENODEV; | |
1100 | } | |
1101 | ||
1102 | #endif | |
1103 | ||
3f8df781 AS |
1104 | /************************ runtime PM support ***************************/ |
1105 | ||
1106 | static int pcmcia_dev_suspend(struct device *dev, pm_message_t state); | |
1107 | static int pcmcia_dev_resume(struct device *dev); | |
1108 | ||
1109 | static int runtime_suspend(struct device *dev) | |
1110 | { | |
1111 | int rc; | |
1112 | ||
1113 | down(&dev->sem); | |
1114 | rc = pcmcia_dev_suspend(dev, PMSG_SUSPEND); | |
1115 | up(&dev->sem); | |
3f8df781 AS |
1116 | return rc; |
1117 | } | |
1118 | ||
1119 | static void runtime_resume(struct device *dev) | |
1120 | { | |
1121 | int rc; | |
1122 | ||
1123 | down(&dev->sem); | |
1124 | rc = pcmcia_dev_resume(dev); | |
1125 | up(&dev->sem); | |
3f8df781 AS |
1126 | } |
1127 | ||
1da177e4 LT |
1128 | /************************ per-device sysfs output ***************************/ |
1129 | ||
1130 | #define pcmcia_device_attr(field, test, format) \ | |
e404e274 | 1131 | static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1132 | { \ |
1133 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
1134 | return p_dev->test ? sprintf (buf, format, p_dev->field) : -ENODEV; \ | |
1135 | } | |
1136 | ||
1137 | #define pcmcia_device_stringattr(name, field) \ | |
e404e274 | 1138 | static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1139 | { \ |
1140 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
1141 | return p_dev->field ? sprintf (buf, "%s\n", p_dev->field) : -ENODEV; \ | |
1142 | } | |
1143 | ||
1144 | pcmcia_device_attr(func, socket, "0x%02x\n"); | |
1145 | pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); | |
1146 | pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); | |
1147 | pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); | |
1148 | pcmcia_device_stringattr(prod_id1, prod_id[0]); | |
1149 | pcmcia_device_stringattr(prod_id2, prod_id[1]); | |
1150 | pcmcia_device_stringattr(prod_id3, prod_id[2]); | |
1151 | pcmcia_device_stringattr(prod_id4, prod_id[3]); | |
1152 | ||
db1019ca DB |
1153 | |
1154 | static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf) | |
1155 | { | |
1156 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1157 | ||
f6fbe01a | 1158 | if (p_dev->suspended) |
db1019ca DB |
1159 | return sprintf(buf, "off\n"); |
1160 | else | |
1161 | return sprintf(buf, "on\n"); | |
1162 | } | |
1163 | ||
1164 | static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr, | |
1165 | const char *buf, size_t count) | |
1166 | { | |
1167 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1168 | int ret = 0; | |
1169 | ||
1170 | if (!count) | |
1171 | return -EINVAL; | |
1172 | ||
f6fbe01a | 1173 | if ((!p_dev->suspended) && !strncmp(buf, "off", 3)) |
3f8df781 | 1174 | ret = runtime_suspend(dev); |
f6fbe01a | 1175 | else if (p_dev->suspended && !strncmp(buf, "on", 2)) |
3f8df781 | 1176 | runtime_resume(dev); |
db1019ca DB |
1177 | |
1178 | return ret ? ret : count; | |
1179 | } | |
1180 | ||
1181 | ||
3704511b | 1182 | static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) |
3248ff43 DB |
1183 | { |
1184 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1185 | int i; | |
1186 | u32 hash[4] = { 0, 0, 0, 0}; | |
1187 | ||
1188 | /* calculate hashes */ | |
1189 | for (i=0; i<4; i++) { | |
1190 | if (!p_dev->prod_id[i]) | |
1191 | continue; | |
1192 | hash[i] = crc32(0,p_dev->prod_id[i],strlen(p_dev->prod_id[i])); | |
1193 | } | |
1194 | return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
1195 | "pa%08Xpb%08Xpc%08Xpd%08X\n", | |
1196 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1197 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1198 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1199 | p_dev->func, p_dev->device_no, | |
1200 | hash[0], hash[1], hash[2], hash[3]); | |
1201 | } | |
a5b55778 | 1202 | |
3248ff43 DB |
1203 | static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, |
1204 | struct device_attribute *attr, const char *buf, size_t count) | |
a5b55778 DB |
1205 | { |
1206 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
f901b8c4 | 1207 | int ret; |
db1019ca DB |
1208 | |
1209 | if (!count) | |
1210 | return -EINVAL; | |
a5b55778 | 1211 | |
7fe908dd | 1212 | mutex_lock(&p_dev->socket->skt_mutex); |
a5b55778 | 1213 | p_dev->allow_func_id_match = 1; |
7fe908dd | 1214 | mutex_unlock(&p_dev->socket->skt_mutex); |
a5b55778 | 1215 | |
f901b8c4 DB |
1216 | ret = bus_rescan_devices(&pcmcia_bus_type); |
1217 | if (ret) | |
1218 | printk(KERN_INFO "pcmcia: bus_rescan_devices failed after " | |
1219 | "allowing func_id matches\n"); | |
a5b55778 DB |
1220 | |
1221 | return count; | |
1222 | } | |
1223 | ||
1da177e4 LT |
1224 | static struct device_attribute pcmcia_dev_attrs[] = { |
1225 | __ATTR(function, 0444, func_show, NULL), | |
db1019ca | 1226 | __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state), |
1da177e4 LT |
1227 | __ATTR_RO(func_id), |
1228 | __ATTR_RO(manf_id), | |
1229 | __ATTR_RO(card_id), | |
1230 | __ATTR_RO(prod_id1), | |
1231 | __ATTR_RO(prod_id2), | |
1232 | __ATTR_RO(prod_id3), | |
1233 | __ATTR_RO(prod_id4), | |
3248ff43 | 1234 | __ATTR_RO(modalias), |
a5b55778 | 1235 | __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), |
1da177e4 LT |
1236 | __ATTR_NULL, |
1237 | }; | |
1238 | ||
8e9e793d DB |
1239 | /* PM support, also needed for reset */ |
1240 | ||
1241 | static int pcmcia_dev_suspend(struct device * dev, pm_message_t state) | |
1242 | { | |
1243 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1244 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1245 | int ret = 0; |
8e9e793d | 1246 | |
d6b4fa6d DB |
1247 | if (p_dev->suspended) |
1248 | return 0; | |
1249 | ||
ac449d6e | 1250 | ds_dev_dbg(2, dev, "suspending\n"); |
d9d9ea01 | 1251 | |
8e9e793d DB |
1252 | if (dev->driver) |
1253 | p_drv = to_pcmcia_drv(dev->driver); | |
1254 | ||
e2d40963 DB |
1255 | if (!p_drv) |
1256 | goto out; | |
1257 | ||
1258 | if (p_drv->suspend) { | |
8661bb5b | 1259 | ret = p_drv->suspend(p_dev); |
d9d9ea01 | 1260 | if (ret) { |
ac449d6e DB |
1261 | dev_printk(KERN_ERR, dev, |
1262 | "pcmcia: device %s (driver %s) did " | |
1263 | "not want to go to sleep (%d)\n", | |
1264 | p_dev->devname, p_drv->drv.name, ret); | |
f6fbe01a | 1265 | goto out; |
d9d9ea01 | 1266 | } |
8661bb5b | 1267 | } |
8e9e793d | 1268 | |
d9d9ea01 | 1269 | if (p_dev->device_no == p_dev->func) { |
ac449d6e | 1270 | ds_dev_dbg(2, dev, "releasing configuration\n"); |
e2d40963 | 1271 | pcmcia_release_configuration(p_dev); |
d9d9ea01 | 1272 | } |
e2d40963 | 1273 | |
f6fbe01a DB |
1274 | out: |
1275 | if (!ret) | |
1276 | p_dev->suspended = 1; | |
1277 | return ret; | |
8e9e793d DB |
1278 | } |
1279 | ||
1280 | ||
1281 | static int pcmcia_dev_resume(struct device * dev) | |
1282 | { | |
1283 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1284 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1285 | int ret = 0; |
8e9e793d | 1286 | |
d6b4fa6d DB |
1287 | if (!p_dev->suspended) |
1288 | return 0; | |
1289 | ||
ac449d6e | 1290 | ds_dev_dbg(2, dev, "resuming\n"); |
d9d9ea01 | 1291 | |
8e9e793d DB |
1292 | if (dev->driver) |
1293 | p_drv = to_pcmcia_drv(dev->driver); | |
1294 | ||
e2d40963 DB |
1295 | if (!p_drv) |
1296 | goto out; | |
1297 | ||
1298 | if (p_dev->device_no == p_dev->func) { | |
ac449d6e | 1299 | ds_dev_dbg(2, dev, "requesting configuration\n"); |
e2d40963 DB |
1300 | ret = pcmcia_request_configuration(p_dev, &p_dev->conf); |
1301 | if (ret) | |
1302 | goto out; | |
8661bb5b | 1303 | } |
8e9e793d | 1304 | |
e2d40963 DB |
1305 | if (p_drv->resume) |
1306 | ret = p_drv->resume(p_dev); | |
1307 | ||
f6fbe01a DB |
1308 | out: |
1309 | if (!ret) | |
1310 | p_dev->suspended = 0; | |
1311 | return ret; | |
8e9e793d DB |
1312 | } |
1313 | ||
1314 | ||
1315 | static int pcmcia_bus_suspend_callback(struct device *dev, void * _data) | |
1316 | { | |
1317 | struct pcmcia_socket *skt = _data; | |
1318 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1319 | ||
3f8df781 | 1320 | if (p_dev->socket != skt || p_dev->suspended) |
8e9e793d DB |
1321 | return 0; |
1322 | ||
3f8df781 | 1323 | return runtime_suspend(dev); |
8e9e793d DB |
1324 | } |
1325 | ||
1326 | static int pcmcia_bus_resume_callback(struct device *dev, void * _data) | |
1327 | { | |
1328 | struct pcmcia_socket *skt = _data; | |
1329 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1330 | ||
3f8df781 | 1331 | if (p_dev->socket != skt || !p_dev->suspended) |
8e9e793d DB |
1332 | return 0; |
1333 | ||
3f8df781 | 1334 | runtime_resume(dev); |
8e9e793d DB |
1335 | |
1336 | return 0; | |
1337 | } | |
1338 | ||
1339 | static int pcmcia_bus_resume(struct pcmcia_socket *skt) | |
1340 | { | |
ac449d6e | 1341 | ds_dev_dbg(2, &skt->dev, "resuming socket %d\n", skt->sock); |
8e9e793d DB |
1342 | bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback); |
1343 | return 0; | |
1344 | } | |
1345 | ||
1346 | static int pcmcia_bus_suspend(struct pcmcia_socket *skt) | |
1347 | { | |
ac449d6e | 1348 | ds_dev_dbg(2, &skt->dev, "suspending socket %d\n", skt->sock); |
8e9e793d DB |
1349 | if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt, |
1350 | pcmcia_bus_suspend_callback)) { | |
1351 | pcmcia_bus_resume(skt); | |
1352 | return -EIO; | |
1353 | } | |
1354 | return 0; | |
1355 | } | |
1356 | ||
1da177e4 | 1357 | |
1da177e4 LT |
1358 | /*====================================================================== |
1359 | ||
1360 | The card status event handler. | |
1361 | ||
1362 | ======================================================================*/ | |
1363 | ||
1da177e4 LT |
1364 | /* Normally, the event is passed to individual drivers after |
1365 | * informing userspace. Only for CS_EVENT_CARD_REMOVAL this | |
1366 | * is inversed to maintain historic compatibility. | |
1367 | */ | |
1368 | ||
1369 | static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) | |
1370 | { | |
dc109497 | 1371 | struct pcmcia_socket *s = pcmcia_get_socket(skt); |
1da177e4 | 1372 | |
1617406a | 1373 | if (!s) { |
ac449d6e DB |
1374 | dev_printk(KERN_ERR, &skt->dev, |
1375 | "PCMCIA obtaining reference to socket " \ | |
1376 | "failed, event 0x%x lost!\n", event); | |
1617406a FM |
1377 | return -ENODEV; |
1378 | } | |
1379 | ||
ac449d6e DB |
1380 | ds_dev_dbg(1, &skt->dev, "ds_event(0x%06x, %d, 0x%p)\n", |
1381 | event, priority, skt); | |
1da177e4 | 1382 | |
f8cfa618 | 1383 | switch (event) { |
1da177e4 | 1384 | case CS_EVENT_CARD_REMOVAL: |
b5e43913 | 1385 | s->pcmcia_state.present = 0; |
d6ff5a85 | 1386 | pcmcia_card_remove(skt, NULL); |
dc109497 | 1387 | handle_event(skt, event); |
1da177e4 | 1388 | break; |
f8cfa618 | 1389 | |
1da177e4 | 1390 | case CS_EVENT_CARD_INSERTION: |
b5e43913 | 1391 | s->pcmcia_state.present = 1; |
1da177e4 | 1392 | pcmcia_card_add(skt); |
dc109497 | 1393 | handle_event(skt, event); |
1da177e4 LT |
1394 | break; |
1395 | ||
1396 | case CS_EVENT_EJECTION_REQUEST: | |
1da177e4 LT |
1397 | break; |
1398 | ||
8e9e793d DB |
1399 | case CS_EVENT_PM_SUSPEND: |
1400 | case CS_EVENT_PM_RESUME: | |
1401 | case CS_EVENT_RESET_PHYSICAL: | |
1402 | case CS_EVENT_CARD_RESET: | |
1da177e4 | 1403 | default: |
dc109497 | 1404 | handle_event(skt, event); |
1da177e4 LT |
1405 | break; |
1406 | } | |
1407 | ||
dc109497 DB |
1408 | pcmcia_put_socket(s); |
1409 | ||
1da177e4 LT |
1410 | return 0; |
1411 | } /* ds_event */ | |
1412 | ||
1413 | ||
9940ec36 DB |
1414 | struct pcmcia_device * pcmcia_dev_present(struct pcmcia_device *_p_dev) |
1415 | { | |
1416 | struct pcmcia_device *p_dev; | |
1417 | struct pcmcia_device *ret = NULL; | |
1418 | ||
1419 | p_dev = pcmcia_get_dev(_p_dev); | |
1420 | if (!p_dev) | |
1421 | return NULL; | |
1422 | ||
1423 | if (!p_dev->socket->pcmcia_state.present) | |
1424 | goto out; | |
1425 | ||
1426 | if (p_dev->_removed) | |
1427 | goto out; | |
1428 | ||
1429 | if (p_dev->suspended) | |
1430 | goto out; | |
1431 | ||
1432 | ret = p_dev; | |
1433 | out: | |
1434 | pcmcia_put_dev(p_dev); | |
1435 | return ret; | |
1436 | } | |
1437 | EXPORT_SYMBOL(pcmcia_dev_present); | |
1438 | ||
1439 | ||
90c6cdd1 DB |
1440 | static struct pcmcia_callback pcmcia_bus_callback = { |
1441 | .owner = THIS_MODULE, | |
1442 | .event = ds_event, | |
1443 | .requery = pcmcia_bus_rescan, | |
8e9e793d DB |
1444 | .suspend = pcmcia_bus_suspend, |
1445 | .resume = pcmcia_bus_resume, | |
90c6cdd1 DB |
1446 | }; |
1447 | ||
87373318 | 1448 | static int __devinit pcmcia_bus_add_socket(struct device *dev, |
d8539d81 | 1449 | struct class_interface *class_intf) |
1da177e4 | 1450 | { |
87373318 | 1451 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 LT |
1452 | int ret; |
1453 | ||
dc109497 DB |
1454 | socket = pcmcia_get_socket(socket); |
1455 | if (!socket) { | |
ac449d6e DB |
1456 | dev_printk(KERN_ERR, dev, |
1457 | "PCMCIA obtaining reference to socket failed\n"); | |
1da177e4 LT |
1458 | return -ENODEV; |
1459 | } | |
1460 | ||
1da177e4 LT |
1461 | /* |
1462 | * Ugly. But we want to wait for the socket threads to have started up. | |
1463 | * We really should let the drivers themselves drive some of this.. | |
1464 | */ | |
1465 | msleep(250); | |
1466 | ||
e7a480d2 | 1467 | #ifdef CONFIG_PCMCIA_IOCTL |
dc109497 | 1468 | init_waitqueue_head(&socket->queue); |
e7a480d2 | 1469 | #endif |
dc109497 | 1470 | INIT_LIST_HEAD(&socket->devices_list); |
4796b71f | 1471 | INIT_WORK(&socket->device_add, pcmcia_delayed_add_device); |
dc109497 DB |
1472 | memset(&socket->pcmcia_state, 0, sizeof(u8)); |
1473 | socket->device_count = 0; | |
1da177e4 | 1474 | |
90c6cdd1 | 1475 | ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback); |
1da177e4 | 1476 | if (ret) { |
ac449d6e | 1477 | dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n"); |
dc109497 | 1478 | pcmcia_put_socket(socket); |
1da177e4 LT |
1479 | return (ret); |
1480 | } | |
1481 | ||
1482 | return 0; | |
1483 | } | |
1484 | ||
87373318 | 1485 | static void pcmcia_bus_remove_socket(struct device *dev, |
d8539d81 | 1486 | struct class_interface *class_intf) |
1da177e4 | 1487 | { |
87373318 | 1488 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 | 1489 | |
dc109497 | 1490 | if (!socket) |
1da177e4 LT |
1491 | return; |
1492 | ||
dc109497 | 1493 | socket->pcmcia_state.dead = 1; |
1da177e4 LT |
1494 | pccard_register_pcmcia(socket, NULL); |
1495 | ||
dfbc9e9d | 1496 | /* unregister any unbound devices */ |
8e4d9dcb | 1497 | mutex_lock(&socket->skt_mutex); |
dfbc9e9d | 1498 | pcmcia_card_remove(socket, NULL); |
8e4d9dcb | 1499 | mutex_unlock(&socket->skt_mutex); |
dfbc9e9d | 1500 | |
dc109497 | 1501 | pcmcia_put_socket(socket); |
1da177e4 LT |
1502 | |
1503 | return; | |
1504 | } | |
1505 | ||
1506 | ||
1507 | /* the pcmcia_bus_interface is used to handle pcmcia socket devices */ | |
ed49f5d0 | 1508 | static struct class_interface pcmcia_bus_interface __refdata = { |
1da177e4 | 1509 | .class = &pcmcia_socket_class, |
87373318 GKH |
1510 | .add_dev = &pcmcia_bus_add_socket, |
1511 | .remove_dev = &pcmcia_bus_remove_socket, | |
1da177e4 LT |
1512 | }; |
1513 | ||
1514 | ||
e7a480d2 | 1515 | struct bus_type pcmcia_bus_type = { |
1da177e4 | 1516 | .name = "pcmcia", |
312c004d | 1517 | .uevent = pcmcia_bus_uevent, |
1da177e4 LT |
1518 | .match = pcmcia_bus_match, |
1519 | .dev_attrs = pcmcia_dev_attrs, | |
1d0baa3a RK |
1520 | .probe = pcmcia_device_probe, |
1521 | .remove = pcmcia_device_remove, | |
8e9e793d DB |
1522 | .suspend = pcmcia_dev_suspend, |
1523 | .resume = pcmcia_dev_resume, | |
1da177e4 | 1524 | }; |
1da177e4 LT |
1525 | |
1526 | ||
1527 | static int __init init_pcmcia_bus(void) | |
1528 | { | |
ace7d477 RD |
1529 | int ret; |
1530 | ||
1da177e4 LT |
1531 | spin_lock_init(&pcmcia_dev_list_lock); |
1532 | ||
ace7d477 RD |
1533 | ret = bus_register(&pcmcia_bus_type); |
1534 | if (ret < 0) { | |
1535 | printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret); | |
1536 | return ret; | |
1537 | } | |
1538 | ret = class_interface_register(&pcmcia_bus_interface); | |
1539 | if (ret < 0) { | |
1540 | printk(KERN_WARNING | |
1541 | "pcmcia: class_interface_register error: %d\n", ret); | |
1542 | bus_unregister(&pcmcia_bus_type); | |
1543 | return ret; | |
1544 | } | |
1da177e4 | 1545 | |
e7a480d2 | 1546 | pcmcia_setup_ioctl(); |
1da177e4 LT |
1547 | |
1548 | return 0; | |
1549 | } | |
1550 | fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that | |
1551 | * pcmcia_socket_class is already registered */ | |
1552 | ||
1553 | ||
1554 | static void __exit exit_pcmcia_bus(void) | |
1555 | { | |
e7a480d2 | 1556 | pcmcia_cleanup_ioctl(); |
1da177e4 | 1557 | |
e7a480d2 | 1558 | class_interface_unregister(&pcmcia_bus_interface); |
1da177e4 LT |
1559 | |
1560 | bus_unregister(&pcmcia_bus_type); | |
1561 | } | |
1562 | module_exit(exit_pcmcia_bus); | |
1563 | ||
1564 | ||
1da177e4 | 1565 | MODULE_ALIAS("ds"); |