Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * ds.c -- 16-bit PCMCIA core support | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * The initial developer of the original code is David A. Hinds | |
9 | * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds | |
10 | * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. | |
11 | * | |
12 | * (C) 1999 David A. Hinds | |
8661bb5b | 13 | * (C) 2003 - 2006 Dominik Brodowski |
1da177e4 LT |
14 | */ |
15 | ||
3b659fb8 | 16 | #include <linux/kernel.h> |
1da177e4 | 17 | #include <linux/module.h> |
1da177e4 | 18 | #include <linux/init.h> |
1da177e4 | 19 | #include <linux/errno.h> |
1da177e4 LT |
20 | #include <linux/list.h> |
21 | #include <linux/delay.h> | |
1da177e4 | 22 | #include <linux/workqueue.h> |
840c2ac5 | 23 | #include <linux/crc32.h> |
daa9517d | 24 | #include <linux/firmware.h> |
360b65b9 | 25 | #include <linux/kref.h> |
43d9f7fd | 26 | #include <linux/dma-mapping.h> |
1da177e4 | 27 | |
1da177e4 LT |
28 | #include <pcmcia/cs_types.h> |
29 | #include <pcmcia/cs.h> | |
1da177e4 LT |
30 | #include <pcmcia/cistpl.h> |
31 | #include <pcmcia/ds.h> | |
32 | #include <pcmcia/ss.h> | |
33 | ||
34 | #include "cs_internal.h" | |
e7a480d2 | 35 | #include "ds_internal.h" |
1da177e4 LT |
36 | |
37 | /*====================================================================*/ | |
38 | ||
39 | /* Module parameters */ | |
40 | ||
41 | MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>"); | |
42 | MODULE_DESCRIPTION("PCMCIA Driver Services"); | |
43 | MODULE_LICENSE("GPL"); | |
44 | ||
7d16b658 | 45 | #ifdef CONFIG_PCMCIA_DEBUG |
e7a480d2 | 46 | int ds_pc_debug; |
1da177e4 LT |
47 | |
48 | module_param_named(pc_debug, ds_pc_debug, int, 0644); | |
49 | ||
50 | #define ds_dbg(lvl, fmt, arg...) do { \ | |
ac449d6e | 51 | if (ds_pc_debug > (lvl)) \ |
1da177e4 LT |
52 | printk(KERN_DEBUG "ds: " fmt , ## arg); \ |
53 | } while (0) | |
ac449d6e DB |
54 | #define ds_dev_dbg(lvl, dev, fmt, arg...) do { \ |
55 | if (ds_pc_debug > (lvl)) \ | |
56 | dev_printk(KERN_DEBUG, dev, "ds: " fmt , ## arg); \ | |
57 | } while (0) | |
1da177e4 LT |
58 | #else |
59 | #define ds_dbg(lvl, fmt, arg...) do { } while (0) | |
ac449d6e | 60 | #define ds_dev_dbg(lvl, dev, fmt, arg...) do { } while (0) |
1da177e4 LT |
61 | #endif |
62 | ||
e7a480d2 | 63 | spinlock_t pcmcia_dev_list_lock; |
1da177e4 | 64 | |
1da177e4 LT |
65 | /*====================================================================*/ |
66 | ||
67 | /* code which was in cs.c before */ | |
68 | ||
69 | /* String tables for error messages */ | |
70 | ||
71 | typedef struct lookup_t { | |
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" }, |
1da177e4 | 86 | { CS_NO_CARD, "No card present" }, |
de6405e9 | 87 | { -EINVAL, "Bad parameter" }, |
1da177e4 | 88 | { CS_GENERAL_FAILURE, "General failure" }, |
1da177e4 LT |
89 | { CS_BAD_ARGS, "Bad arguments" }, |
90 | { CS_CONFIGURATION_LOCKED, "Configuration locked" }, | |
91 | { CS_IN_USE, "Resource in use" }, | |
92 | { CS_NO_MORE_ITEMS, "No more items" }, | |
93 | { CS_OUT_OF_RESOURCE, "Out of resource" }, | |
94 | { CS_BAD_HANDLE, "Bad handle" }, | |
95 | { CS_BAD_TUPLE, "Bad CIS tuple" } | |
96 | }; | |
97 | ||
98 | ||
99 | static const lookup_t service_table[] = { | |
100 | { AccessConfigurationRegister, "AccessConfigurationRegister" }, | |
101 | { AddSocketServices, "AddSocketServices" }, | |
102 | { AdjustResourceInfo, "AdjustResourceInfo" }, | |
103 | { CheckEraseQueue, "CheckEraseQueue" }, | |
104 | { CloseMemory, "CloseMemory" }, | |
105 | { DeregisterClient, "DeregisterClient" }, | |
106 | { DeregisterEraseQueue, "DeregisterEraseQueue" }, | |
107 | { GetCardServicesInfo, "GetCardServicesInfo" }, | |
108 | { GetClientInfo, "GetClientInfo" }, | |
109 | { GetConfigurationInfo, "GetConfigurationInfo" }, | |
110 | { GetEventMask, "GetEventMask" }, | |
111 | { GetFirstClient, "GetFirstClient" }, | |
112 | { GetFirstRegion, "GetFirstRegion" }, | |
113 | { GetFirstTuple, "GetFirstTuple" }, | |
114 | { GetNextClient, "GetNextClient" }, | |
115 | { GetNextRegion, "GetNextRegion" }, | |
116 | { GetNextTuple, "GetNextTuple" }, | |
117 | { GetStatus, "GetStatus" }, | |
118 | { GetTupleData, "GetTupleData" }, | |
119 | { MapMemPage, "MapMemPage" }, | |
120 | { ModifyConfiguration, "ModifyConfiguration" }, | |
121 | { ModifyWindow, "ModifyWindow" }, | |
122 | { OpenMemory, "OpenMemory" }, | |
123 | { ParseTuple, "ParseTuple" }, | |
124 | { ReadMemory, "ReadMemory" }, | |
125 | { RegisterClient, "RegisterClient" }, | |
126 | { RegisterEraseQueue, "RegisterEraseQueue" }, | |
127 | { RegisterMTD, "RegisterMTD" }, | |
128 | { ReleaseConfiguration, "ReleaseConfiguration" }, | |
129 | { ReleaseIO, "ReleaseIO" }, | |
130 | { ReleaseIRQ, "ReleaseIRQ" }, | |
131 | { ReleaseWindow, "ReleaseWindow" }, | |
132 | { RequestConfiguration, "RequestConfiguration" }, | |
133 | { RequestIO, "RequestIO" }, | |
134 | { RequestIRQ, "RequestIRQ" }, | |
135 | { RequestSocketMask, "RequestSocketMask" }, | |
136 | { RequestWindow, "RequestWindow" }, | |
137 | { ResetCard, "ResetCard" }, | |
138 | { SetEventMask, "SetEventMask" }, | |
139 | { ValidateCIS, "ValidateCIS" }, | |
140 | { WriteMemory, "WriteMemory" }, | |
141 | { BindDevice, "BindDevice" }, | |
142 | { BindMTD, "BindMTD" }, | |
143 | { ReportError, "ReportError" }, | |
144 | { SuspendCard, "SuspendCard" }, | |
145 | { ResumeCard, "ResumeCard" }, | |
146 | { EjectCard, "EjectCard" }, | |
147 | { InsertCard, "InsertCard" }, | |
148 | { ReplaceCIS, "ReplaceCIS" } | |
149 | }; | |
150 | ||
151 | ||
2bc5a9bd | 152 | static int pcmcia_report_error(struct pcmcia_device *p_dev, error_info_t *err) |
1da177e4 LT |
153 | { |
154 | int i; | |
155 | char *serv; | |
156 | ||
2bc5a9bd | 157 | if (!p_dev) |
1da177e4 | 158 | printk(KERN_NOTICE); |
2bc5a9bd | 159 | else |
1da177e4 | 160 | printk(KERN_NOTICE "%s: ", p_dev->dev.bus_id); |
1da177e4 LT |
161 | |
162 | for (i = 0; i < ARRAY_SIZE(service_table); i++) | |
163 | if (service_table[i].key == err->func) | |
164 | break; | |
165 | if (i < ARRAY_SIZE(service_table)) | |
166 | serv = service_table[i].msg; | |
167 | else | |
168 | serv = "Unknown service number"; | |
169 | ||
170 | for (i = 0; i < ARRAY_SIZE(error_table); i++) | |
171 | if (error_table[i].key == err->retcode) | |
172 | break; | |
173 | if (i < ARRAY_SIZE(error_table)) | |
174 | printk("%s: %s\n", serv, error_table[i].msg); | |
175 | else | |
176 | printk("%s: Unknown error code %#x\n", serv, err->retcode); | |
177 | ||
4c89e88b | 178 | return 0; |
1da177e4 | 179 | } /* report_error */ |
1da177e4 LT |
180 | |
181 | /* end of code which was in cs.c before */ | |
182 | ||
183 | /*======================================================================*/ | |
184 | ||
2bc5a9bd | 185 | void cs_error(struct pcmcia_device *p_dev, int func, int ret) |
1da177e4 LT |
186 | { |
187 | error_info_t err = { func, ret }; | |
2bc5a9bd | 188 | pcmcia_report_error(p_dev, &err); |
1da177e4 LT |
189 | } |
190 | EXPORT_SYMBOL(cs_error); | |
191 | ||
23a83bfe DB |
192 | |
193 | static void pcmcia_check_driver(struct pcmcia_driver *p_drv) | |
194 | { | |
195 | struct pcmcia_device_id *did = p_drv->id_table; | |
196 | unsigned int i; | |
197 | u32 hash; | |
198 | ||
f8cfa618 | 199 | if (!p_drv->probe || !p_drv->remove) |
ba5bb6b5 PR |
200 | printk(KERN_DEBUG "pcmcia: %s lacks a requisite callback " |
201 | "function\n", p_drv->drv.name); | |
1e212f36 | 202 | |
23a83bfe DB |
203 | while (did && did->match_flags) { |
204 | for (i=0; i<4; i++) { | |
205 | if (!did->prod_id[i]) | |
206 | continue; | |
207 | ||
208 | hash = crc32(0, did->prod_id[i], strlen(did->prod_id[i])); | |
209 | if (hash == did->prod_id_hash[i]) | |
210 | continue; | |
211 | ||
212 | printk(KERN_DEBUG "pcmcia: %s: invalid hash for " | |
213 | "product string \"%s\": is 0x%x, should " | |
214 | "be 0x%x\n", p_drv->drv.name, did->prod_id[i], | |
215 | did->prod_id_hash[i], hash); | |
5085cb26 DB |
216 | printk(KERN_DEBUG "pcmcia: see " |
217 | "Documentation/pcmcia/devicetable.txt for " | |
218 | "details\n"); | |
23a83bfe DB |
219 | } |
220 | did++; | |
221 | } | |
222 | ||
223 | return; | |
224 | } | |
225 | ||
daa9517d | 226 | |
1da177e4 LT |
227 | /*======================================================================*/ |
228 | ||
1da177e4 | 229 | |
6179b556 BW |
230 | struct pcmcia_dynid { |
231 | struct list_head node; | |
232 | struct pcmcia_device_id id; | |
233 | }; | |
234 | ||
235 | /** | |
236 | * pcmcia_store_new_id - add a new PCMCIA device ID to this driver and re-probe devices | |
237 | * @driver: target device driver | |
238 | * @buf: buffer for scanning device ID data | |
239 | * @count: input size | |
240 | * | |
241 | * Adds a new dynamic PCMCIA device ID to this driver, | |
242 | * and causes the driver to probe for all devices again. | |
243 | */ | |
244 | static ssize_t | |
245 | pcmcia_store_new_id(struct device_driver *driver, const char *buf, size_t count) | |
246 | { | |
247 | struct pcmcia_dynid *dynid; | |
248 | struct pcmcia_driver *pdrv = to_pcmcia_drv(driver); | |
249 | __u16 match_flags, manf_id, card_id; | |
250 | __u8 func_id, function, device_no; | |
251 | __u32 prod_id_hash[4] = {0, 0, 0, 0}; | |
252 | int fields=0; | |
253 | int retval = 0; | |
254 | ||
255 | fields = sscanf(buf, "%hx %hx %hx %hhx %hhx %hhx %x %x %x %x", | |
256 | &match_flags, &manf_id, &card_id, &func_id, &function, &device_no, | |
257 | &prod_id_hash[0], &prod_id_hash[1], &prod_id_hash[2], &prod_id_hash[3]); | |
258 | if (fields < 6) | |
259 | return -EINVAL; | |
260 | ||
261 | dynid = kzalloc(sizeof(struct pcmcia_dynid), GFP_KERNEL); | |
262 | if (!dynid) | |
263 | return -ENOMEM; | |
264 | ||
265 | INIT_LIST_HEAD(&dynid->node); | |
266 | dynid->id.match_flags = match_flags; | |
267 | dynid->id.manf_id = manf_id; | |
268 | dynid->id.card_id = card_id; | |
269 | dynid->id.func_id = func_id; | |
270 | dynid->id.function = function; | |
271 | dynid->id.device_no = device_no; | |
272 | memcpy(dynid->id.prod_id_hash, prod_id_hash, sizeof(__u32) * 4); | |
273 | ||
274 | spin_lock(&pdrv->dynids.lock); | |
275 | list_add_tail(&pdrv->dynids.list, &dynid->node); | |
276 | spin_unlock(&pdrv->dynids.lock); | |
277 | ||
278 | if (get_driver(&pdrv->drv)) { | |
279 | retval = driver_attach(&pdrv->drv); | |
280 | put_driver(&pdrv->drv); | |
281 | } | |
282 | ||
283 | if (retval) | |
284 | return retval; | |
285 | return count; | |
286 | } | |
287 | static DRIVER_ATTR(new_id, S_IWUSR, NULL, pcmcia_store_new_id); | |
288 | ||
289 | static void | |
290 | pcmcia_free_dynids(struct pcmcia_driver *drv) | |
291 | { | |
292 | struct pcmcia_dynid *dynid, *n; | |
293 | ||
294 | spin_lock(&drv->dynids.lock); | |
295 | list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) { | |
296 | list_del(&dynid->node); | |
297 | kfree(dynid); | |
298 | } | |
299 | spin_unlock(&drv->dynids.lock); | |
300 | } | |
301 | ||
302 | static int | |
303 | pcmcia_create_newid_file(struct pcmcia_driver *drv) | |
304 | { | |
305 | int error = 0; | |
306 | if (drv->probe != NULL) | |
2344c6de | 307 | error = driver_create_file(&drv->drv, &driver_attr_new_id); |
6179b556 BW |
308 | return error; |
309 | } | |
310 | ||
311 | ||
1da177e4 LT |
312 | /** |
313 | * pcmcia_register_driver - register a PCMCIA driver with the bus core | |
78187865 | 314 | * @driver: the &driver being registered |
1da177e4 LT |
315 | * |
316 | * Registers a PCMCIA driver with the PCMCIA bus core. | |
317 | */ | |
1da177e4 LT |
318 | int pcmcia_register_driver(struct pcmcia_driver *driver) |
319 | { | |
6179b556 BW |
320 | int error; |
321 | ||
1da177e4 LT |
322 | if (!driver) |
323 | return -EINVAL; | |
324 | ||
23a83bfe DB |
325 | pcmcia_check_driver(driver); |
326 | ||
1da177e4 LT |
327 | /* initialize common fields */ |
328 | driver->drv.bus = &pcmcia_bus_type; | |
329 | driver->drv.owner = driver->owner; | |
6179b556 BW |
330 | spin_lock_init(&driver->dynids.lock); |
331 | INIT_LIST_HEAD(&driver->dynids.list); | |
1da177e4 | 332 | |
d9d9ea01 DB |
333 | ds_dbg(3, "registering driver %s\n", driver->drv.name); |
334 | ||
6179b556 BW |
335 | error = driver_register(&driver->drv); |
336 | if (error < 0) | |
337 | return error; | |
338 | ||
339 | error = pcmcia_create_newid_file(driver); | |
340 | if (error) | |
341 | driver_unregister(&driver->drv); | |
342 | ||
343 | return error; | |
1da177e4 LT |
344 | } |
345 | EXPORT_SYMBOL(pcmcia_register_driver); | |
346 | ||
347 | /** | |
348 | * pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core | |
78187865 | 349 | * @driver: the &driver being unregistered |
1da177e4 LT |
350 | */ |
351 | void pcmcia_unregister_driver(struct pcmcia_driver *driver) | |
352 | { | |
d9d9ea01 | 353 | ds_dbg(3, "unregistering driver %s\n", driver->drv.name); |
1da177e4 | 354 | driver_unregister(&driver->drv); |
6179b556 | 355 | pcmcia_free_dynids(driver); |
1da177e4 LT |
356 | } |
357 | EXPORT_SYMBOL(pcmcia_unregister_driver); | |
358 | ||
1da177e4 LT |
359 | |
360 | /* pcmcia_device handling */ | |
361 | ||
e7a480d2 | 362 | struct pcmcia_device * pcmcia_get_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
363 | { |
364 | struct device *tmp_dev; | |
365 | tmp_dev = get_device(&p_dev->dev); | |
366 | if (!tmp_dev) | |
367 | return NULL; | |
368 | return to_pcmcia_dev(tmp_dev); | |
369 | } | |
370 | ||
e7a480d2 | 371 | void pcmcia_put_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
372 | { |
373 | if (p_dev) | |
374 | put_device(&p_dev->dev); | |
375 | } | |
376 | ||
360b65b9 DB |
377 | static void pcmcia_release_function(struct kref *ref) |
378 | { | |
379 | struct config_t *c = container_of(ref, struct config_t, ref); | |
d9d9ea01 | 380 | ds_dbg(1, "releasing config_t\n"); |
360b65b9 DB |
381 | kfree(c); |
382 | } | |
383 | ||
1da177e4 LT |
384 | static void pcmcia_release_dev(struct device *dev) |
385 | { | |
386 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
ac449d6e | 387 | ds_dev_dbg(1, dev, "releasing device\n"); |
dc109497 | 388 | pcmcia_put_socket(p_dev->socket); |
bd65a685 | 389 | kfree(p_dev->devname); |
360b65b9 | 390 | kref_put(&p_dev->function_config->ref, pcmcia_release_function); |
1da177e4 LT |
391 | kfree(p_dev); |
392 | } | |
393 | ||
1d2c9042 | 394 | static void pcmcia_add_device_later(struct pcmcia_socket *s, int mfc) |
82d56e6d DB |
395 | { |
396 | if (!s->pcmcia_state.device_add_pending) { | |
ac449d6e | 397 | ds_dev_dbg(1, &s->dev, "scheduling to add %s secondary" |
d9d9ea01 | 398 | " device to %d\n", mfc ? "mfc" : "pfc", s->sock); |
82d56e6d | 399 | s->pcmcia_state.device_add_pending = 1; |
1d2c9042 | 400 | s->pcmcia_state.mfc_pfc = mfc; |
82d56e6d DB |
401 | schedule_work(&s->device_add); |
402 | } | |
403 | return; | |
404 | } | |
1da177e4 LT |
405 | |
406 | static int pcmcia_device_probe(struct device * dev) | |
407 | { | |
408 | struct pcmcia_device *p_dev; | |
409 | struct pcmcia_driver *p_drv; | |
82d56e6d | 410 | struct pcmcia_device_id *did; |
f8cfa618 | 411 | struct pcmcia_socket *s; |
af2b3b50 | 412 | cistpl_config_t cis_config; |
1da177e4 LT |
413 | int ret = 0; |
414 | ||
415 | dev = get_device(dev); | |
416 | if (!dev) | |
417 | return -ENODEV; | |
418 | ||
419 | p_dev = to_pcmcia_dev(dev); | |
420 | p_drv = to_pcmcia_drv(dev->driver); | |
f8cfa618 | 421 | s = p_dev->socket; |
1da177e4 | 422 | |
ac449d6e | 423 | ds_dev_dbg(1, dev, "trying to bind to %s\n", p_drv->drv.name); |
d9d9ea01 | 424 | |
360b65b9 DB |
425 | if ((!p_drv->probe) || (!p_dev->function_config) || |
426 | (!try_module_get(p_drv->owner))) { | |
1da177e4 LT |
427 | ret = -EINVAL; |
428 | goto put_dev; | |
429 | } | |
430 | ||
af2b3b50 DB |
431 | /* set up some more device information */ |
432 | ret = pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_CONFIG, | |
433 | &cis_config); | |
434 | if (!ret) { | |
435 | p_dev->conf.ConfigBase = cis_config.base; | |
436 | p_dev->conf.Present = cis_config.rmask[0]; | |
437 | } else { | |
ac449d6e DB |
438 | dev_printk(KERN_INFO, dev, |
439 | "pcmcia: could not parse base and rmask0 of CIS\n"); | |
af2b3b50 DB |
440 | p_dev->conf.ConfigBase = 0; |
441 | p_dev->conf.Present = 0; | |
442 | } | |
443 | ||
f8cfa618 | 444 | ret = p_drv->probe(p_dev); |
d9d9ea01 | 445 | if (ret) { |
ac449d6e DB |
446 | ds_dev_dbg(1, dev, "binding to %s failed with %d\n", |
447 | p_drv->drv.name, ret); | |
82d56e6d | 448 | goto put_module; |
d9d9ea01 | 449 | } |
82d56e6d DB |
450 | |
451 | /* handle pseudo multifunction devices: | |
452 | * there are at most two pseudo multifunction devices. | |
453 | * if we're matching against the first, schedule a | |
454 | * call which will then check whether there are two | |
455 | * pseudo devices, and if not, add the second one. | |
456 | */ | |
80a55e92 | 457 | did = p_dev->dev.driver_data; |
4ceadbf5 | 458 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
82d56e6d | 459 | (p_dev->socket->device_count == 1) && (p_dev->device_no == 0)) |
1d2c9042 | 460 | pcmcia_add_device_later(p_dev->socket, 0); |
f8cfa618 DB |
461 | |
462 | put_module: | |
1da177e4 LT |
463 | if (ret) |
464 | module_put(p_drv->owner); | |
465 | put_dev: | |
f8cfa618 | 466 | if (ret) |
1da177e4 LT |
467 | put_device(dev); |
468 | return (ret); | |
469 | } | |
470 | ||
471 | ||
d6ff5a85 DB |
472 | /* |
473 | * Removes a PCMCIA card from the device tree and socket list. | |
474 | */ | |
475 | static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *leftover) | |
476 | { | |
477 | struct pcmcia_device *p_dev; | |
478 | struct pcmcia_device *tmp; | |
479 | unsigned long flags; | |
480 | ||
ac449d6e DB |
481 | ds_dev_dbg(2, leftover ? &leftover->dev : &s->dev, |
482 | "pcmcia_card_remove(%d) %s\n", s->sock, | |
483 | leftover ? leftover->devname : ""); | |
d6ff5a85 DB |
484 | |
485 | if (!leftover) | |
486 | s->device_count = 0; | |
487 | else | |
488 | s->device_count = 1; | |
489 | ||
490 | /* unregister all pcmcia_devices registered with this socket, except leftover */ | |
491 | list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) { | |
492 | if (p_dev == leftover) | |
493 | continue; | |
494 | ||
495 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
496 | list_del(&p_dev->socket_device_list); | |
497 | p_dev->_removed=1; | |
498 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
499 | ||
ac449d6e | 500 | ds_dev_dbg(2, &p_dev->dev, "unregistering device\n"); |
d6ff5a85 DB |
501 | device_unregister(&p_dev->dev); |
502 | } | |
503 | ||
504 | return; | |
505 | } | |
506 | ||
1da177e4 LT |
507 | static int pcmcia_device_remove(struct device * dev) |
508 | { | |
509 | struct pcmcia_device *p_dev; | |
510 | struct pcmcia_driver *p_drv; | |
d6ff5a85 | 511 | struct pcmcia_device_id *did; |
cc3b4866 | 512 | int i; |
1da177e4 | 513 | |
1da177e4 LT |
514 | p_dev = to_pcmcia_dev(dev); |
515 | p_drv = to_pcmcia_drv(dev->driver); | |
d6ff5a85 | 516 | |
ac449d6e | 517 | ds_dev_dbg(1, dev, "removing device\n"); |
d9d9ea01 | 518 | |
d6ff5a85 DB |
519 | /* If we're removing the primary module driving a |
520 | * pseudo multi-function card, we need to unbind | |
521 | * all devices | |
522 | */ | |
80a55e92 | 523 | did = p_dev->dev.driver_data; |
b2f51a1c | 524 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
d6ff5a85 DB |
525 | (p_dev->socket->device_count != 0) && |
526 | (p_dev->device_no == 0)) | |
527 | pcmcia_card_remove(p_dev->socket, p_dev); | |
528 | ||
529 | /* detach the "instance" */ | |
f3990715 DB |
530 | if (!p_drv) |
531 | return 0; | |
1da177e4 | 532 | |
f3990715 | 533 | if (p_drv->remove) |
cc3b4866 DB |
534 | p_drv->remove(p_dev); |
535 | ||
a0aab143 DB |
536 | p_dev->dev_node = NULL; |
537 | ||
f3990715 | 538 | /* check for proper unloading */ |
e2d40963 | 539 | if (p_dev->_irq || p_dev->_io || p_dev->_locked) |
ac449d6e DB |
540 | dev_printk(KERN_INFO, dev, |
541 | "pcmcia: driver %s did not release config properly\n", | |
542 | p_drv->drv.name); | |
cc3b4866 | 543 | |
f3990715 | 544 | for (i = 0; i < MAX_WIN; i++) |
e2d40963 | 545 | if (p_dev->_win & CLIENT_WIN_REQ(i)) |
ac449d6e DB |
546 | dev_printk(KERN_INFO, dev, |
547 | "pcmcia: driver %s did not release window properly\n", | |
548 | p_drv->drv.name); | |
cc3b4866 | 549 | |
f3990715 DB |
550 | /* references from pcmcia_probe_device */ |
551 | pcmcia_put_dev(p_dev); | |
552 | module_put(p_drv->owner); | |
1da177e4 LT |
553 | |
554 | return 0; | |
555 | } | |
556 | ||
557 | ||
1da177e4 LT |
558 | /* |
559 | * pcmcia_device_query -- determine information about a pcmcia device | |
560 | */ | |
561 | static int pcmcia_device_query(struct pcmcia_device *p_dev) | |
562 | { | |
563 | cistpl_manfid_t manf_id; | |
564 | cistpl_funcid_t func_id; | |
76fa82fb | 565 | cistpl_vers_1_t *vers1; |
1da177e4 LT |
566 | unsigned int i; |
567 | ||
76fa82fb IM |
568 | vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL); |
569 | if (!vers1) | |
570 | return -ENOMEM; | |
571 | ||
1da177e4 LT |
572 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
573 | CISTPL_MANFID, &manf_id)) { | |
574 | p_dev->manf_id = manf_id.manf; | |
575 | p_dev->card_id = manf_id.card; | |
576 | p_dev->has_manf_id = 1; | |
577 | p_dev->has_card_id = 1; | |
578 | } | |
579 | ||
580 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, | |
581 | CISTPL_FUNCID, &func_id)) { | |
582 | p_dev->func_id = func_id.func; | |
583 | p_dev->has_func_id = 1; | |
584 | } else { | |
585 | /* rule of thumb: cards with no FUNCID, but with | |
586 | * common memory device geometry information, are | |
587 | * probably memory cards (from pcmcia-cs) */ | |
76fa82fb IM |
588 | cistpl_device_geo_t *devgeo; |
589 | ||
590 | devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL); | |
591 | if (!devgeo) { | |
592 | kfree(vers1); | |
593 | return -ENOMEM; | |
594 | } | |
1da177e4 | 595 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
76fa82fb | 596 | CISTPL_DEVICE_GEO, devgeo)) { |
ac449d6e DB |
597 | ds_dev_dbg(0, &p_dev->dev, |
598 | "mem device geometry probably means " | |
599 | "FUNCID_MEMORY\n"); | |
1da177e4 LT |
600 | p_dev->func_id = CISTPL_FUNCID_MEMORY; |
601 | p_dev->has_func_id = 1; | |
602 | } | |
76fa82fb | 603 | kfree(devgeo); |
1da177e4 LT |
604 | } |
605 | ||
606 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_VERS_1, | |
76fa82fb IM |
607 | vers1)) { |
608 | for (i=0; i < vers1->ns; i++) { | |
1da177e4 LT |
609 | char *tmp; |
610 | unsigned int length; | |
611 | ||
76fa82fb | 612 | tmp = vers1->str + vers1->ofs[i]; |
1da177e4 LT |
613 | |
614 | length = strlen(tmp) + 1; | |
6e3d4f25 | 615 | if ((length < 2) || (length > 255)) |
1da177e4 LT |
616 | continue; |
617 | ||
618 | p_dev->prod_id[i] = kmalloc(sizeof(char) * length, | |
619 | GFP_KERNEL); | |
620 | if (!p_dev->prod_id[i]) | |
621 | continue; | |
622 | ||
623 | p_dev->prod_id[i] = strncpy(p_dev->prod_id[i], | |
624 | tmp, length); | |
625 | } | |
626 | } | |
627 | ||
76fa82fb | 628 | kfree(vers1); |
1da177e4 LT |
629 | return 0; |
630 | } | |
631 | ||
632 | ||
633 | /* device_add_lock is needed to avoid double registration by cardmgr and kernel. | |
634 | * Serializes pcmcia_device_add; will most likely be removed in future. | |
635 | * | |
636 | * While it has the caveat that adding new PCMCIA devices inside(!) device_register() | |
637 | * won't work, this doesn't matter much at the moment: the driver core doesn't | |
638 | * support it either. | |
639 | */ | |
7fe908dd | 640 | static DEFINE_MUTEX(device_add_lock); |
1da177e4 | 641 | |
dc109497 | 642 | struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function) |
1da177e4 | 643 | { |
360b65b9 | 644 | struct pcmcia_device *p_dev, *tmp_dev; |
1da177e4 | 645 | unsigned long flags; |
bd65a685 | 646 | int bus_id_len; |
1da177e4 | 647 | |
dc109497 | 648 | s = pcmcia_get_socket(s); |
1da177e4 LT |
649 | if (!s) |
650 | return NULL; | |
651 | ||
7fe908dd | 652 | mutex_lock(&device_add_lock); |
1da177e4 | 653 | |
d9d9ea01 DB |
654 | ds_dbg(3, "adding device to %d, function %d\n", s->sock, function); |
655 | ||
6cf5be51 DB |
656 | /* max of 4 devices per card */ |
657 | if (s->device_count == 4) | |
1ad275e3 DB |
658 | goto err_put; |
659 | ||
8084b372 | 660 | p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL); |
1da177e4 LT |
661 | if (!p_dev) |
662 | goto err_put; | |
1da177e4 | 663 | |
dc109497 | 664 | p_dev->socket = s; |
1da177e4 LT |
665 | p_dev->device_no = (s->device_count++); |
666 | p_dev->func = function; | |
667 | ||
668 | p_dev->dev.bus = &pcmcia_bus_type; | |
87373318 | 669 | p_dev->dev.parent = s->dev.parent; |
1da177e4 | 670 | p_dev->dev.release = pcmcia_release_dev; |
43d9f7fd JB |
671 | /* by default don't allow DMA */ |
672 | p_dev->dma_mask = DMA_MASK_NONE; | |
673 | p_dev->dev.dma_mask = &p_dev->dma_mask; | |
bd65a685 BG |
674 | bus_id_len = sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no); |
675 | ||
676 | p_dev->devname = kmalloc(6 + bus_id_len + 1, GFP_KERNEL); | |
677 | if (!p_dev->devname) | |
678 | goto err_free; | |
679 | sprintf (p_dev->devname, "pcmcia%s", p_dev->dev.bus_id); | |
ac449d6e | 680 | ds_dev_dbg(3, &p_dev->dev, "devname is %s\n", p_dev->devname); |
1da177e4 | 681 | |
1da177e4 | 682 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
360b65b9 DB |
683 | |
684 | /* | |
685 | * p_dev->function_config must be the same for all card functions. | |
686 | * Note that this is serialized by the device_add_lock, so that | |
687 | * only one such struct will be created. | |
688 | */ | |
689 | list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list) | |
690 | if (p_dev->func == tmp_dev->func) { | |
691 | p_dev->function_config = tmp_dev->function_config; | |
692 | kref_get(&p_dev->function_config->ref); | |
693 | } | |
694 | ||
695 | /* Add to the list in pcmcia_bus_socket */ | |
6171b88b | 696 | list_add(&p_dev->socket_device_list, &s->devices_list); |
360b65b9 | 697 | |
1da177e4 LT |
698 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
699 | ||
360b65b9 | 700 | if (!p_dev->function_config) { |
ac449d6e | 701 | ds_dev_dbg(3, &p_dev->dev, "creating config_t\n"); |
360b65b9 DB |
702 | p_dev->function_config = kzalloc(sizeof(struct config_t), |
703 | GFP_KERNEL); | |
704 | if (!p_dev->function_config) | |
705 | goto err_unreg; | |
706 | kref_init(&p_dev->function_config->ref); | |
707 | } | |
708 | ||
ac449d6e DB |
709 | dev_printk(KERN_NOTICE, &p_dev->dev, |
710 | "pcmcia: registering new device %s\n", | |
711 | p_dev->devname); | |
807277cb | 712 | |
1ad275e3 DB |
713 | pcmcia_device_query(p_dev); |
714 | ||
360b65b9 DB |
715 | if (device_register(&p_dev->dev)) |
716 | goto err_unreg; | |
1da177e4 | 717 | |
7fe908dd | 718 | mutex_unlock(&device_add_lock); |
1da177e4 LT |
719 | |
720 | return p_dev; | |
721 | ||
360b65b9 DB |
722 | err_unreg: |
723 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
724 | list_del(&p_dev->socket_device_list); | |
725 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
726 | ||
1da177e4 | 727 | err_free: |
bd65a685 | 728 | kfree(p_dev->devname); |
1da177e4 LT |
729 | kfree(p_dev); |
730 | s->device_count--; | |
731 | err_put: | |
7fe908dd | 732 | mutex_unlock(&device_add_lock); |
dc109497 | 733 | pcmcia_put_socket(s); |
1da177e4 LT |
734 | |
735 | return NULL; | |
736 | } | |
737 | ||
738 | ||
739 | static int pcmcia_card_add(struct pcmcia_socket *s) | |
740 | { | |
1da177e4 | 741 | cistpl_longlink_mfc_t mfc; |
c5081d5f | 742 | unsigned int no_funcs, i, no_chains; |
1da177e4 LT |
743 | int ret = 0; |
744 | ||
d9d9ea01 | 745 | if (!(s->resource_setup_done)) { |
ac449d6e DB |
746 | ds_dev_dbg(3, &s->dev, |
747 | "no resources available, delaying card_add\n"); | |
1da177e4 | 748 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 749 | } |
1da177e4 | 750 | |
d9d9ea01 | 751 | if (pcmcia_validate_mem(s)) { |
ac449d6e | 752 | ds_dev_dbg(3, &s->dev, "validating mem resources failed, " |
d9d9ea01 | 753 | "delaying card_add\n"); |
de75914e | 754 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 755 | } |
de75914e | 756 | |
c5081d5f DB |
757 | ret = pccard_validate_cis(s, BIND_FN_ALL, &no_chains); |
758 | if (ret || !no_chains) { | |
ac449d6e | 759 | ds_dev_dbg(0, &s->dev, "invalid CIS or invalid resources\n"); |
1da177e4 LT |
760 | return -ENODEV; |
761 | } | |
762 | ||
763 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
764 | no_funcs = mfc.nfn; | |
765 | else | |
766 | no_funcs = 1; | |
1d2c9042 | 767 | s->functions = no_funcs; |
1da177e4 | 768 | |
1da177e4 | 769 | for (i=0; i < no_funcs; i++) |
dc109497 | 770 | pcmcia_device_add(s, i); |
1da177e4 LT |
771 | |
772 | return (ret); | |
773 | } | |
774 | ||
775 | ||
4796b71f | 776 | static void pcmcia_delayed_add_device(struct work_struct *work) |
1ad275e3 | 777 | { |
c4028958 DH |
778 | struct pcmcia_socket *s = |
779 | container_of(work, struct pcmcia_socket, device_add); | |
ac449d6e | 780 | ds_dev_dbg(1, &s->dev, "adding additional device to %d\n", s->sock); |
1d2c9042 | 781 | pcmcia_device_add(s, s->pcmcia_state.mfc_pfc); |
b5e43913 | 782 | s->pcmcia_state.device_add_pending = 0; |
1d2c9042 | 783 | s->pcmcia_state.mfc_pfc = 0; |
1ad275e3 DB |
784 | } |
785 | ||
e2f0b534 | 786 | static int pcmcia_requery(struct device *dev, void * _data) |
ff1fa9ef | 787 | { |
e2f0b534 | 788 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
d9d9ea01 | 789 | if (!p_dev->dev.driver) { |
ac449d6e | 790 | ds_dev_dbg(1, dev, "update device information\n"); |
e2f0b534 | 791 | pcmcia_device_query(p_dev); |
d9d9ea01 | 792 | } |
e2f0b534 DB |
793 | |
794 | return 0; | |
795 | } | |
796 | ||
4ae1cbf1 | 797 | static void pcmcia_bus_rescan(struct pcmcia_socket *skt, int new_cis) |
e2f0b534 | 798 | { |
4ae1cbf1 | 799 | int no_devices = 0; |
f901b8c4 | 800 | int ret = 0; |
e2f0b534 DB |
801 | unsigned long flags; |
802 | ||
7fe908dd | 803 | /* must be called with skt_mutex held */ |
ac449d6e | 804 | ds_dev_dbg(0, &skt->dev, "re-scanning socket %d\n", skt->sock); |
d9d9ea01 | 805 | |
e2f0b534 | 806 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
dc109497 | 807 | if (list_empty(&skt->devices_list)) |
4ae1cbf1 | 808 | no_devices = 1; |
e2f0b534 DB |
809 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
810 | ||
4ae1cbf1 DB |
811 | /* If this is because of a CIS override, start over */ |
812 | if (new_cis && !no_devices) | |
813 | pcmcia_card_remove(skt, NULL); | |
814 | ||
e2f0b534 DB |
815 | /* if no devices were added for this socket yet because of |
816 | * missing resource information or other trouble, we need to | |
817 | * do this now. */ | |
4ae1cbf1 | 818 | if (no_devices || new_cis) { |
f901b8c4 | 819 | ret = pcmcia_card_add(skt); |
e2f0b534 DB |
820 | if (ret) |
821 | return; | |
822 | } | |
823 | ||
824 | /* some device information might have changed because of a CIS | |
825 | * update or because we can finally read it correctly... so | |
826 | * determine it again, overwriting old values if necessary. */ | |
827 | bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery); | |
828 | ||
829 | /* we re-scan all devices, not just the ones connected to this | |
830 | * socket. This does not matter, though. */ | |
f901b8c4 DB |
831 | ret = bus_rescan_devices(&pcmcia_bus_type); |
832 | if (ret) | |
833 | printk(KERN_INFO "pcmcia: bus_rescan_devices failed\n"); | |
ff1fa9ef | 834 | } |
1ad275e3 | 835 | |
1d2c9042 DB |
836 | #ifdef CONFIG_PCMCIA_LOAD_CIS |
837 | ||
838 | /** | |
839 | * pcmcia_load_firmware - load CIS from userspace if device-provided is broken | |
78187865 RD |
840 | * @dev: the pcmcia device which needs a CIS override |
841 | * @filename: requested filename in /lib/firmware/ | |
1d2c9042 DB |
842 | * |
843 | * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if | |
844 | * the one provided by the card is broken. The firmware files reside in | |
845 | * /lib/firmware/ in userspace. | |
846 | */ | |
847 | static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
848 | { | |
849 | struct pcmcia_socket *s = dev->socket; | |
850 | const struct firmware *fw; | |
feda4f2c | 851 | char path[FIRMWARE_NAME_MAX]; |
1d2c9042 DB |
852 | int ret = -ENOMEM; |
853 | int no_funcs; | |
854 | int old_funcs; | |
1d2c9042 DB |
855 | cistpl_longlink_mfc_t mfc; |
856 | ||
857 | if (!filename) | |
858 | return -EINVAL; | |
859 | ||
ac449d6e | 860 | ds_dev_dbg(1, &dev->dev, "trying to load CIS file %s\n", filename); |
1d2c9042 | 861 | |
feda4f2c | 862 | if (strlen(filename) > (FIRMWARE_NAME_MAX - 1)) { |
ac449d6e DB |
863 | dev_printk(KERN_WARNING, &dev->dev, |
864 | "pcmcia: CIS filename is too long [%s]\n", | |
865 | filename); | |
1d2c9042 | 866 | return -EINVAL; |
d9d9ea01 | 867 | } |
1d2c9042 | 868 | |
52debb06 | 869 | snprintf(path, sizeof(path), "%s", filename); |
1d2c9042 DB |
870 | |
871 | if (request_firmware(&fw, path, &dev->dev) == 0) { | |
d9d9ea01 DB |
872 | if (fw->size >= CISTPL_MAX_CIS_SIZE) { |
873 | ret = -EINVAL; | |
ac449d6e DB |
874 | dev_printk(KERN_ERR, &dev->dev, |
875 | "pcmcia: CIS override is too big\n"); | |
1d2c9042 | 876 | goto release; |
d9d9ea01 | 877 | } |
1d2c9042 | 878 | |
53efec95 | 879 | if (!pcmcia_replace_cis(s, fw->data, fw->size)) |
1d2c9042 | 880 | ret = 0; |
d9d9ea01 | 881 | else { |
ac449d6e DB |
882 | dev_printk(KERN_ERR, &dev->dev, |
883 | "pcmcia: CIS override failed\n"); | |
d9d9ea01 DB |
884 | goto release; |
885 | } | |
886 | ||
1d2c9042 DB |
887 | |
888 | /* update information */ | |
889 | pcmcia_device_query(dev); | |
890 | ||
891 | /* does this cis override add or remove functions? */ | |
892 | old_funcs = s->functions; | |
893 | ||
894 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
895 | no_funcs = mfc.nfn; | |
896 | else | |
897 | no_funcs = 1; | |
898 | s->functions = no_funcs; | |
899 | ||
900 | if (old_funcs > no_funcs) | |
901 | pcmcia_card_remove(s, dev); | |
902 | else if (no_funcs > old_funcs) | |
903 | pcmcia_add_device_later(s, 1); | |
904 | } | |
905 | release: | |
906 | release_firmware(fw); | |
907 | ||
908 | return (ret); | |
909 | } | |
910 | ||
911 | #else /* !CONFIG_PCMCIA_LOAD_CIS */ | |
912 | ||
913 | static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
914 | { | |
915 | return -ENODEV; | |
916 | } | |
917 | ||
918 | #endif | |
919 | ||
920 | ||
1ad275e3 DB |
921 | static inline int pcmcia_devmatch(struct pcmcia_device *dev, |
922 | struct pcmcia_device_id *did) | |
923 | { | |
924 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) { | |
925 | if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id)) | |
926 | return 0; | |
927 | } | |
928 | ||
929 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) { | |
930 | if ((!dev->has_card_id) || (dev->card_id != did->card_id)) | |
931 | return 0; | |
932 | } | |
933 | ||
934 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) { | |
935 | if (dev->func != did->function) | |
936 | return 0; | |
937 | } | |
938 | ||
939 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) { | |
940 | if (!dev->prod_id[0]) | |
941 | return 0; | |
942 | if (strcmp(did->prod_id[0], dev->prod_id[0])) | |
943 | return 0; | |
944 | } | |
945 | ||
946 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) { | |
947 | if (!dev->prod_id[1]) | |
948 | return 0; | |
949 | if (strcmp(did->prod_id[1], dev->prod_id[1])) | |
950 | return 0; | |
951 | } | |
952 | ||
953 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) { | |
954 | if (!dev->prod_id[2]) | |
955 | return 0; | |
956 | if (strcmp(did->prod_id[2], dev->prod_id[2])) | |
957 | return 0; | |
958 | } | |
959 | ||
960 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) { | |
961 | if (!dev->prod_id[3]) | |
962 | return 0; | |
963 | if (strcmp(did->prod_id[3], dev->prod_id[3])) | |
964 | return 0; | |
965 | } | |
966 | ||
967 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { | |
1ad275e3 DB |
968 | if (dev->device_no != did->device_no) |
969 | return 0; | |
970 | } | |
971 | ||
972 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { | |
973 | if ((!dev->has_func_id) || (dev->func_id != did->func_id)) | |
974 | return 0; | |
975 | ||
976 | /* if this is a pseudo-multi-function device, | |
977 | * we need explicit matches */ | |
978 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) | |
979 | return 0; | |
980 | if (dev->device_no) | |
981 | return 0; | |
982 | ||
983 | /* also, FUNC_ID matching needs to be activated by userspace | |
984 | * after it has re-checked that there is no possible module | |
985 | * with a prod_id/manf_id/card_id match. | |
986 | */ | |
ac449d6e DB |
987 | ds_dev_dbg(0, &dev->dev, |
988 | "skipping FUNC_ID match until userspace interaction\n"); | |
1ad275e3 DB |
989 | if (!dev->allow_func_id_match) |
990 | return 0; | |
991 | } | |
992 | ||
ea7b3882 | 993 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { |
ac449d6e | 994 | ds_dev_dbg(0, &dev->dev, "device needs a fake CIS\n"); |
daa9517d DB |
995 | if (!dev->socket->fake_cis) |
996 | pcmcia_load_firmware(dev, did->cisfile); | |
997 | ||
998 | if (!dev->socket->fake_cis) | |
ea7b3882 | 999 | return 0; |
ea7b3882 DB |
1000 | } |
1001 | ||
f602ff7e DB |
1002 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { |
1003 | int i; | |
1004 | for (i=0; i<4; i++) | |
1005 | if (dev->prod_id[i]) | |
1006 | return 0; | |
1007 | if (dev->has_manf_id || dev->has_card_id || dev->has_func_id) | |
1008 | return 0; | |
1009 | } | |
1010 | ||
1ad275e3 DB |
1011 | dev->dev.driver_data = (void *) did; |
1012 | ||
1013 | return 1; | |
1014 | } | |
1015 | ||
1016 | ||
1da177e4 LT |
1017 | static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) { |
1018 | struct pcmcia_device * p_dev = to_pcmcia_dev(dev); | |
1019 | struct pcmcia_driver * p_drv = to_pcmcia_drv(drv); | |
1ad275e3 | 1020 | struct pcmcia_device_id *did = p_drv->id_table; |
6179b556 BW |
1021 | struct pcmcia_dynid *dynid; |
1022 | ||
1023 | /* match dynamic devices first */ | |
1024 | spin_lock(&p_drv->dynids.lock); | |
1025 | list_for_each_entry(dynid, &p_drv->dynids.list, node) { | |
ac449d6e | 1026 | ds_dev_dbg(3, dev, "trying to match to %s\n", drv->name); |
6179b556 | 1027 | if (pcmcia_devmatch(p_dev, &dynid->id)) { |
ac449d6e | 1028 | ds_dev_dbg(0, dev, "matched to %s\n", drv->name); |
6179b556 BW |
1029 | spin_unlock(&p_drv->dynids.lock); |
1030 | return 1; | |
1031 | } | |
1032 | } | |
1033 | spin_unlock(&p_drv->dynids.lock); | |
1da177e4 | 1034 | |
0e0fad8f | 1035 | #ifdef CONFIG_PCMCIA_IOCTL |
1da177e4 | 1036 | /* matching by cardmgr */ |
d9d9ea01 | 1037 | if (p_dev->cardmgr == p_drv) { |
ac449d6e | 1038 | ds_dev_dbg(0, dev, "cardmgr matched to %s\n", drv->name); |
1da177e4 | 1039 | return 1; |
d9d9ea01 | 1040 | } |
0e0fad8f | 1041 | #endif |
1da177e4 | 1042 | |
1ad275e3 | 1043 | while (did && did->match_flags) { |
ac449d6e | 1044 | ds_dev_dbg(3, dev, "trying to match to %s\n", drv->name); |
d9d9ea01 | 1045 | if (pcmcia_devmatch(p_dev, did)) { |
ac449d6e | 1046 | ds_dev_dbg(0, dev, "matched to %s\n", drv->name); |
1ad275e3 | 1047 | return 1; |
d9d9ea01 | 1048 | } |
1ad275e3 DB |
1049 | did++; |
1050 | } | |
1051 | ||
1da177e4 LT |
1052 | return 0; |
1053 | } | |
1054 | ||
840c2ac5 DB |
1055 | #ifdef CONFIG_HOTPLUG |
1056 | ||
7eff2e7a | 1057 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
1058 | { |
1059 | struct pcmcia_device *p_dev; | |
7eff2e7a | 1060 | int i; |
840c2ac5 DB |
1061 | u32 hash[4] = { 0, 0, 0, 0}; |
1062 | ||
1063 | if (!dev) | |
1064 | return -ENODEV; | |
1065 | ||
1066 | p_dev = to_pcmcia_dev(dev); | |
1067 | ||
1068 | /* calculate hashes */ | |
1069 | for (i=0; i<4; i++) { | |
1070 | if (!p_dev->prod_id[i]) | |
1071 | continue; | |
1072 | hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); | |
1073 | } | |
1074 | ||
7eff2e7a | 1075 | if (add_uevent_var(env, "SOCKET_NO=%u", p_dev->socket->sock)) |
840c2ac5 DB |
1076 | return -ENOMEM; |
1077 | ||
7eff2e7a | 1078 | if (add_uevent_var(env, "DEVICE_NO=%02X", p_dev->device_no)) |
840c2ac5 DB |
1079 | return -ENOMEM; |
1080 | ||
7eff2e7a | 1081 | if (add_uevent_var(env, "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" |
312c004d KS |
1082 | "pa%08Xpb%08Xpc%08Xpd%08X", |
1083 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1084 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1085 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1086 | p_dev->func, | |
1087 | p_dev->device_no, | |
1088 | hash[0], | |
1089 | hash[1], | |
1090 | hash[2], | |
1091 | hash[3])) | |
840c2ac5 DB |
1092 | return -ENOMEM; |
1093 | ||
840c2ac5 DB |
1094 | return 0; |
1095 | } | |
1096 | ||
1097 | #else | |
1098 | ||
7eff2e7a | 1099 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
1100 | { |
1101 | return -ENODEV; | |
1102 | } | |
1103 | ||
1104 | #endif | |
1105 | ||
3f8df781 AS |
1106 | /************************ runtime PM support ***************************/ |
1107 | ||
1108 | static int pcmcia_dev_suspend(struct device *dev, pm_message_t state); | |
1109 | static int pcmcia_dev_resume(struct device *dev); | |
1110 | ||
1111 | static int runtime_suspend(struct device *dev) | |
1112 | { | |
1113 | int rc; | |
1114 | ||
1115 | down(&dev->sem); | |
1116 | rc = pcmcia_dev_suspend(dev, PMSG_SUSPEND); | |
1117 | up(&dev->sem); | |
3f8df781 AS |
1118 | return rc; |
1119 | } | |
1120 | ||
1121 | static void runtime_resume(struct device *dev) | |
1122 | { | |
1123 | int rc; | |
1124 | ||
1125 | down(&dev->sem); | |
1126 | rc = pcmcia_dev_resume(dev); | |
1127 | up(&dev->sem); | |
3f8df781 AS |
1128 | } |
1129 | ||
1da177e4 LT |
1130 | /************************ per-device sysfs output ***************************/ |
1131 | ||
1132 | #define pcmcia_device_attr(field, test, format) \ | |
e404e274 | 1133 | static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1134 | { \ |
1135 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
1136 | return p_dev->test ? sprintf (buf, format, p_dev->field) : -ENODEV; \ | |
1137 | } | |
1138 | ||
1139 | #define pcmcia_device_stringattr(name, field) \ | |
e404e274 | 1140 | static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1141 | { \ |
1142 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
1143 | return p_dev->field ? sprintf (buf, "%s\n", p_dev->field) : -ENODEV; \ | |
1144 | } | |
1145 | ||
1146 | pcmcia_device_attr(func, socket, "0x%02x\n"); | |
1147 | pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); | |
1148 | pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); | |
1149 | pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); | |
1150 | pcmcia_device_stringattr(prod_id1, prod_id[0]); | |
1151 | pcmcia_device_stringattr(prod_id2, prod_id[1]); | |
1152 | pcmcia_device_stringattr(prod_id3, prod_id[2]); | |
1153 | pcmcia_device_stringattr(prod_id4, prod_id[3]); | |
1154 | ||
db1019ca DB |
1155 | |
1156 | static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf) | |
1157 | { | |
1158 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1159 | ||
f6fbe01a | 1160 | if (p_dev->suspended) |
db1019ca DB |
1161 | return sprintf(buf, "off\n"); |
1162 | else | |
1163 | return sprintf(buf, "on\n"); | |
1164 | } | |
1165 | ||
1166 | static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr, | |
1167 | const char *buf, size_t count) | |
1168 | { | |
1169 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1170 | int ret = 0; | |
1171 | ||
1172 | if (!count) | |
1173 | return -EINVAL; | |
1174 | ||
f6fbe01a | 1175 | if ((!p_dev->suspended) && !strncmp(buf, "off", 3)) |
3f8df781 | 1176 | ret = runtime_suspend(dev); |
f6fbe01a | 1177 | else if (p_dev->suspended && !strncmp(buf, "on", 2)) |
3f8df781 | 1178 | runtime_resume(dev); |
db1019ca DB |
1179 | |
1180 | return ret ? ret : count; | |
1181 | } | |
1182 | ||
1183 | ||
3704511b | 1184 | static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) |
3248ff43 DB |
1185 | { |
1186 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1187 | int i; | |
1188 | u32 hash[4] = { 0, 0, 0, 0}; | |
1189 | ||
1190 | /* calculate hashes */ | |
1191 | for (i=0; i<4; i++) { | |
1192 | if (!p_dev->prod_id[i]) | |
1193 | continue; | |
1194 | hash[i] = crc32(0,p_dev->prod_id[i],strlen(p_dev->prod_id[i])); | |
1195 | } | |
1196 | return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
1197 | "pa%08Xpb%08Xpc%08Xpd%08X\n", | |
1198 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1199 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1200 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1201 | p_dev->func, p_dev->device_no, | |
1202 | hash[0], hash[1], hash[2], hash[3]); | |
1203 | } | |
a5b55778 | 1204 | |
3248ff43 DB |
1205 | static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, |
1206 | struct device_attribute *attr, const char *buf, size_t count) | |
a5b55778 DB |
1207 | { |
1208 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
f901b8c4 | 1209 | int ret; |
db1019ca DB |
1210 | |
1211 | if (!count) | |
1212 | return -EINVAL; | |
a5b55778 | 1213 | |
7fe908dd | 1214 | mutex_lock(&p_dev->socket->skt_mutex); |
a5b55778 | 1215 | p_dev->allow_func_id_match = 1; |
7fe908dd | 1216 | mutex_unlock(&p_dev->socket->skt_mutex); |
a5b55778 | 1217 | |
f901b8c4 DB |
1218 | ret = bus_rescan_devices(&pcmcia_bus_type); |
1219 | if (ret) | |
1220 | printk(KERN_INFO "pcmcia: bus_rescan_devices failed after " | |
1221 | "allowing func_id matches\n"); | |
a5b55778 DB |
1222 | |
1223 | return count; | |
1224 | } | |
1225 | ||
1da177e4 LT |
1226 | static struct device_attribute pcmcia_dev_attrs[] = { |
1227 | __ATTR(function, 0444, func_show, NULL), | |
db1019ca | 1228 | __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state), |
1da177e4 LT |
1229 | __ATTR_RO(func_id), |
1230 | __ATTR_RO(manf_id), | |
1231 | __ATTR_RO(card_id), | |
1232 | __ATTR_RO(prod_id1), | |
1233 | __ATTR_RO(prod_id2), | |
1234 | __ATTR_RO(prod_id3), | |
1235 | __ATTR_RO(prod_id4), | |
3248ff43 | 1236 | __ATTR_RO(modalias), |
a5b55778 | 1237 | __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), |
1da177e4 LT |
1238 | __ATTR_NULL, |
1239 | }; | |
1240 | ||
8e9e793d DB |
1241 | /* PM support, also needed for reset */ |
1242 | ||
1243 | static int pcmcia_dev_suspend(struct device * dev, pm_message_t state) | |
1244 | { | |
1245 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1246 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1247 | int ret = 0; |
8e9e793d | 1248 | |
d6b4fa6d DB |
1249 | if (p_dev->suspended) |
1250 | return 0; | |
1251 | ||
ac449d6e | 1252 | ds_dev_dbg(2, dev, "suspending\n"); |
d9d9ea01 | 1253 | |
8e9e793d DB |
1254 | if (dev->driver) |
1255 | p_drv = to_pcmcia_drv(dev->driver); | |
1256 | ||
e2d40963 DB |
1257 | if (!p_drv) |
1258 | goto out; | |
1259 | ||
1260 | if (p_drv->suspend) { | |
8661bb5b | 1261 | ret = p_drv->suspend(p_dev); |
d9d9ea01 | 1262 | if (ret) { |
ac449d6e DB |
1263 | dev_printk(KERN_ERR, dev, |
1264 | "pcmcia: device %s (driver %s) did " | |
1265 | "not want to go to sleep (%d)\n", | |
1266 | p_dev->devname, p_drv->drv.name, ret); | |
f6fbe01a | 1267 | goto out; |
d9d9ea01 | 1268 | } |
8661bb5b | 1269 | } |
8e9e793d | 1270 | |
d9d9ea01 | 1271 | if (p_dev->device_no == p_dev->func) { |
ac449d6e | 1272 | ds_dev_dbg(2, dev, "releasing configuration\n"); |
e2d40963 | 1273 | pcmcia_release_configuration(p_dev); |
d9d9ea01 | 1274 | } |
e2d40963 | 1275 | |
f6fbe01a DB |
1276 | out: |
1277 | if (!ret) | |
1278 | p_dev->suspended = 1; | |
1279 | return ret; | |
8e9e793d DB |
1280 | } |
1281 | ||
1282 | ||
1283 | static int pcmcia_dev_resume(struct device * dev) | |
1284 | { | |
1285 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1286 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1287 | int ret = 0; |
8e9e793d | 1288 | |
d6b4fa6d DB |
1289 | if (!p_dev->suspended) |
1290 | return 0; | |
1291 | ||
ac449d6e | 1292 | ds_dev_dbg(2, dev, "resuming\n"); |
d9d9ea01 | 1293 | |
8e9e793d DB |
1294 | if (dev->driver) |
1295 | p_drv = to_pcmcia_drv(dev->driver); | |
1296 | ||
e2d40963 DB |
1297 | if (!p_drv) |
1298 | goto out; | |
1299 | ||
1300 | if (p_dev->device_no == p_dev->func) { | |
ac449d6e | 1301 | ds_dev_dbg(2, dev, "requesting configuration\n"); |
e2d40963 DB |
1302 | ret = pcmcia_request_configuration(p_dev, &p_dev->conf); |
1303 | if (ret) | |
1304 | goto out; | |
8661bb5b | 1305 | } |
8e9e793d | 1306 | |
e2d40963 DB |
1307 | if (p_drv->resume) |
1308 | ret = p_drv->resume(p_dev); | |
1309 | ||
f6fbe01a DB |
1310 | out: |
1311 | if (!ret) | |
1312 | p_dev->suspended = 0; | |
1313 | return ret; | |
8e9e793d DB |
1314 | } |
1315 | ||
1316 | ||
1317 | static int pcmcia_bus_suspend_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 | return runtime_suspend(dev); |
8e9e793d DB |
1326 | } |
1327 | ||
1328 | static int pcmcia_bus_resume_callback(struct device *dev, void * _data) | |
1329 | { | |
1330 | struct pcmcia_socket *skt = _data; | |
1331 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1332 | ||
3f8df781 | 1333 | if (p_dev->socket != skt || !p_dev->suspended) |
8e9e793d DB |
1334 | return 0; |
1335 | ||
3f8df781 | 1336 | runtime_resume(dev); |
8e9e793d DB |
1337 | |
1338 | return 0; | |
1339 | } | |
1340 | ||
1341 | static int pcmcia_bus_resume(struct pcmcia_socket *skt) | |
1342 | { | |
ac449d6e | 1343 | ds_dev_dbg(2, &skt->dev, "resuming socket %d\n", skt->sock); |
8e9e793d DB |
1344 | bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback); |
1345 | return 0; | |
1346 | } | |
1347 | ||
1348 | static int pcmcia_bus_suspend(struct pcmcia_socket *skt) | |
1349 | { | |
ac449d6e | 1350 | ds_dev_dbg(2, &skt->dev, "suspending socket %d\n", skt->sock); |
8e9e793d DB |
1351 | if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt, |
1352 | pcmcia_bus_suspend_callback)) { | |
1353 | pcmcia_bus_resume(skt); | |
1354 | return -EIO; | |
1355 | } | |
1356 | return 0; | |
1357 | } | |
1358 | ||
1da177e4 | 1359 | |
1da177e4 LT |
1360 | /*====================================================================== |
1361 | ||
1362 | The card status event handler. | |
1363 | ||
1364 | ======================================================================*/ | |
1365 | ||
1da177e4 LT |
1366 | /* Normally, the event is passed to individual drivers after |
1367 | * informing userspace. Only for CS_EVENT_CARD_REMOVAL this | |
1368 | * is inversed to maintain historic compatibility. | |
1369 | */ | |
1370 | ||
1371 | static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) | |
1372 | { | |
dc109497 | 1373 | struct pcmcia_socket *s = pcmcia_get_socket(skt); |
1da177e4 | 1374 | |
1617406a | 1375 | if (!s) { |
ac449d6e DB |
1376 | dev_printk(KERN_ERR, &skt->dev, |
1377 | "PCMCIA obtaining reference to socket " \ | |
1378 | "failed, event 0x%x lost!\n", event); | |
1617406a FM |
1379 | return -ENODEV; |
1380 | } | |
1381 | ||
ac449d6e DB |
1382 | ds_dev_dbg(1, &skt->dev, "ds_event(0x%06x, %d, 0x%p)\n", |
1383 | event, priority, skt); | |
1da177e4 | 1384 | |
f8cfa618 | 1385 | switch (event) { |
1da177e4 | 1386 | case CS_EVENT_CARD_REMOVAL: |
b5e43913 | 1387 | s->pcmcia_state.present = 0; |
d6ff5a85 | 1388 | pcmcia_card_remove(skt, NULL); |
dc109497 | 1389 | handle_event(skt, event); |
1da177e4 | 1390 | break; |
f8cfa618 | 1391 | |
1da177e4 | 1392 | case CS_EVENT_CARD_INSERTION: |
b5e43913 | 1393 | s->pcmcia_state.present = 1; |
1da177e4 | 1394 | pcmcia_card_add(skt); |
dc109497 | 1395 | handle_event(skt, event); |
1da177e4 LT |
1396 | break; |
1397 | ||
1398 | case CS_EVENT_EJECTION_REQUEST: | |
1da177e4 LT |
1399 | break; |
1400 | ||
8e9e793d DB |
1401 | case CS_EVENT_PM_SUSPEND: |
1402 | case CS_EVENT_PM_RESUME: | |
1403 | case CS_EVENT_RESET_PHYSICAL: | |
1404 | case CS_EVENT_CARD_RESET: | |
1da177e4 | 1405 | default: |
dc109497 | 1406 | handle_event(skt, event); |
1da177e4 LT |
1407 | break; |
1408 | } | |
1409 | ||
dc109497 DB |
1410 | pcmcia_put_socket(s); |
1411 | ||
1da177e4 LT |
1412 | return 0; |
1413 | } /* ds_event */ | |
1414 | ||
1415 | ||
9940ec36 DB |
1416 | struct pcmcia_device * pcmcia_dev_present(struct pcmcia_device *_p_dev) |
1417 | { | |
1418 | struct pcmcia_device *p_dev; | |
1419 | struct pcmcia_device *ret = NULL; | |
1420 | ||
1421 | p_dev = pcmcia_get_dev(_p_dev); | |
1422 | if (!p_dev) | |
1423 | return NULL; | |
1424 | ||
1425 | if (!p_dev->socket->pcmcia_state.present) | |
1426 | goto out; | |
1427 | ||
1428 | if (p_dev->_removed) | |
1429 | goto out; | |
1430 | ||
1431 | if (p_dev->suspended) | |
1432 | goto out; | |
1433 | ||
1434 | ret = p_dev; | |
1435 | out: | |
1436 | pcmcia_put_dev(p_dev); | |
1437 | return ret; | |
1438 | } | |
1439 | EXPORT_SYMBOL(pcmcia_dev_present); | |
1440 | ||
1441 | ||
90c6cdd1 DB |
1442 | static struct pcmcia_callback pcmcia_bus_callback = { |
1443 | .owner = THIS_MODULE, | |
1444 | .event = ds_event, | |
1445 | .requery = pcmcia_bus_rescan, | |
8e9e793d DB |
1446 | .suspend = pcmcia_bus_suspend, |
1447 | .resume = pcmcia_bus_resume, | |
90c6cdd1 DB |
1448 | }; |
1449 | ||
87373318 | 1450 | static int __devinit pcmcia_bus_add_socket(struct device *dev, |
d8539d81 | 1451 | struct class_interface *class_intf) |
1da177e4 | 1452 | { |
87373318 | 1453 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 LT |
1454 | int ret; |
1455 | ||
dc109497 DB |
1456 | socket = pcmcia_get_socket(socket); |
1457 | if (!socket) { | |
ac449d6e DB |
1458 | dev_printk(KERN_ERR, dev, |
1459 | "PCMCIA obtaining reference to socket failed\n"); | |
1da177e4 LT |
1460 | return -ENODEV; |
1461 | } | |
1462 | ||
1da177e4 LT |
1463 | /* |
1464 | * Ugly. But we want to wait for the socket threads to have started up. | |
1465 | * We really should let the drivers themselves drive some of this.. | |
1466 | */ | |
1467 | msleep(250); | |
1468 | ||
e7a480d2 | 1469 | #ifdef CONFIG_PCMCIA_IOCTL |
dc109497 | 1470 | init_waitqueue_head(&socket->queue); |
e7a480d2 | 1471 | #endif |
dc109497 | 1472 | INIT_LIST_HEAD(&socket->devices_list); |
4796b71f | 1473 | INIT_WORK(&socket->device_add, pcmcia_delayed_add_device); |
dc109497 DB |
1474 | memset(&socket->pcmcia_state, 0, sizeof(u8)); |
1475 | socket->device_count = 0; | |
1da177e4 | 1476 | |
90c6cdd1 | 1477 | ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback); |
1da177e4 | 1478 | if (ret) { |
ac449d6e | 1479 | dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n"); |
dc109497 | 1480 | pcmcia_put_socket(socket); |
1da177e4 LT |
1481 | return (ret); |
1482 | } | |
1483 | ||
1484 | return 0; | |
1485 | } | |
1486 | ||
87373318 | 1487 | static void pcmcia_bus_remove_socket(struct device *dev, |
d8539d81 | 1488 | struct class_interface *class_intf) |
1da177e4 | 1489 | { |
87373318 | 1490 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 | 1491 | |
dc109497 | 1492 | if (!socket) |
1da177e4 LT |
1493 | return; |
1494 | ||
dc109497 | 1495 | socket->pcmcia_state.dead = 1; |
1da177e4 LT |
1496 | pccard_register_pcmcia(socket, NULL); |
1497 | ||
dfbc9e9d | 1498 | /* unregister any unbound devices */ |
8e4d9dcb | 1499 | mutex_lock(&socket->skt_mutex); |
dfbc9e9d | 1500 | pcmcia_card_remove(socket, NULL); |
8e4d9dcb | 1501 | mutex_unlock(&socket->skt_mutex); |
dfbc9e9d | 1502 | |
dc109497 | 1503 | pcmcia_put_socket(socket); |
1da177e4 LT |
1504 | |
1505 | return; | |
1506 | } | |
1507 | ||
1508 | ||
1509 | /* the pcmcia_bus_interface is used to handle pcmcia socket devices */ | |
ed49f5d0 | 1510 | static struct class_interface pcmcia_bus_interface __refdata = { |
1da177e4 | 1511 | .class = &pcmcia_socket_class, |
87373318 GKH |
1512 | .add_dev = &pcmcia_bus_add_socket, |
1513 | .remove_dev = &pcmcia_bus_remove_socket, | |
1da177e4 LT |
1514 | }; |
1515 | ||
1516 | ||
e7a480d2 | 1517 | struct bus_type pcmcia_bus_type = { |
1da177e4 | 1518 | .name = "pcmcia", |
312c004d | 1519 | .uevent = pcmcia_bus_uevent, |
1da177e4 LT |
1520 | .match = pcmcia_bus_match, |
1521 | .dev_attrs = pcmcia_dev_attrs, | |
1d0baa3a RK |
1522 | .probe = pcmcia_device_probe, |
1523 | .remove = pcmcia_device_remove, | |
8e9e793d DB |
1524 | .suspend = pcmcia_dev_suspend, |
1525 | .resume = pcmcia_dev_resume, | |
1da177e4 | 1526 | }; |
1da177e4 LT |
1527 | |
1528 | ||
1529 | static int __init init_pcmcia_bus(void) | |
1530 | { | |
ace7d477 RD |
1531 | int ret; |
1532 | ||
1da177e4 LT |
1533 | spin_lock_init(&pcmcia_dev_list_lock); |
1534 | ||
ace7d477 RD |
1535 | ret = bus_register(&pcmcia_bus_type); |
1536 | if (ret < 0) { | |
1537 | printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret); | |
1538 | return ret; | |
1539 | } | |
1540 | ret = class_interface_register(&pcmcia_bus_interface); | |
1541 | if (ret < 0) { | |
1542 | printk(KERN_WARNING | |
1543 | "pcmcia: class_interface_register error: %d\n", ret); | |
1544 | bus_unregister(&pcmcia_bus_type); | |
1545 | return ret; | |
1546 | } | |
1da177e4 | 1547 | |
e7a480d2 | 1548 | pcmcia_setup_ioctl(); |
1da177e4 LT |
1549 | |
1550 | return 0; | |
1551 | } | |
1552 | fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that | |
1553 | * pcmcia_socket_class is already registered */ | |
1554 | ||
1555 | ||
1556 | static void __exit exit_pcmcia_bus(void) | |
1557 | { | |
e7a480d2 | 1558 | pcmcia_cleanup_ioctl(); |
1da177e4 | 1559 | |
e7a480d2 | 1560 | class_interface_unregister(&pcmcia_bus_interface); |
1da177e4 LT |
1561 | |
1562 | bus_unregister(&pcmcia_bus_type); | |
1563 | } | |
1564 | module_exit(exit_pcmcia_bus); | |
1565 | ||
1566 | ||
1da177e4 | 1567 | MODULE_ALIAS("ds"); |