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 | |
3b659fb8 | 13 | * (C) 2003 - 2005 Dominik Brodowski |
1da177e4 LT |
14 | */ |
15 | ||
16 | #include <linux/config.h> | |
3b659fb8 | 17 | #include <linux/kernel.h> |
1da177e4 | 18 | #include <linux/module.h> |
1da177e4 | 19 | #include <linux/init.h> |
1da177e4 | 20 | #include <linux/errno.h> |
1da177e4 LT |
21 | #include <linux/list.h> |
22 | #include <linux/delay.h> | |
1da177e4 | 23 | #include <linux/workqueue.h> |
840c2ac5 | 24 | #include <linux/crc32.h> |
daa9517d | 25 | #include <linux/firmware.h> |
1da177e4 | 26 | |
1da177e4 | 27 | #define IN_CARD_SERVICES |
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 | ||
45 | #ifdef 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 { \ | |
51 | if (ds_pc_debug > (lvl)) \ | |
52 | printk(KERN_DEBUG "ds: " fmt , ## arg); \ | |
53 | } while (0) | |
54 | #else | |
55 | #define ds_dbg(lvl, fmt, arg...) do { } while (0) | |
56 | #endif | |
57 | ||
e7a480d2 | 58 | spinlock_t pcmcia_dev_list_lock; |
1da177e4 | 59 | |
1da177e4 LT |
60 | /*====================================================================*/ |
61 | ||
62 | /* code which was in cs.c before */ | |
63 | ||
64 | /* String tables for error messages */ | |
65 | ||
66 | typedef struct lookup_t { | |
67 | int key; | |
68 | char *msg; | |
69 | } lookup_t; | |
70 | ||
71 | static const lookup_t error_table[] = { | |
72 | { CS_SUCCESS, "Operation succeeded" }, | |
73 | { CS_BAD_ADAPTER, "Bad adapter" }, | |
74 | { CS_BAD_ATTRIBUTE, "Bad attribute", }, | |
75 | { CS_BAD_BASE, "Bad base address" }, | |
76 | { CS_BAD_EDC, "Bad EDC" }, | |
77 | { CS_BAD_IRQ, "Bad IRQ" }, | |
78 | { CS_BAD_OFFSET, "Bad offset" }, | |
79 | { CS_BAD_PAGE, "Bad page number" }, | |
80 | { CS_READ_FAILURE, "Read failure" }, | |
81 | { CS_BAD_SIZE, "Bad size" }, | |
82 | { CS_BAD_SOCKET, "Bad socket" }, | |
83 | { CS_BAD_TYPE, "Bad type" }, | |
84 | { CS_BAD_VCC, "Bad Vcc" }, | |
85 | { CS_BAD_VPP, "Bad Vpp" }, | |
86 | { CS_BAD_WINDOW, "Bad window" }, | |
87 | { CS_WRITE_FAILURE, "Write failure" }, | |
88 | { CS_NO_CARD, "No card present" }, | |
89 | { CS_UNSUPPORTED_FUNCTION, "Usupported function" }, | |
90 | { CS_UNSUPPORTED_MODE, "Unsupported mode" }, | |
91 | { CS_BAD_SPEED, "Bad speed" }, | |
92 | { CS_BUSY, "Resource busy" }, | |
93 | { CS_GENERAL_FAILURE, "General failure" }, | |
94 | { CS_WRITE_PROTECTED, "Write protected" }, | |
95 | { CS_BAD_ARG_LENGTH, "Bad argument length" }, | |
96 | { CS_BAD_ARGS, "Bad arguments" }, | |
97 | { CS_CONFIGURATION_LOCKED, "Configuration locked" }, | |
98 | { CS_IN_USE, "Resource in use" }, | |
99 | { CS_NO_MORE_ITEMS, "No more items" }, | |
100 | { CS_OUT_OF_RESOURCE, "Out of resource" }, | |
101 | { CS_BAD_HANDLE, "Bad handle" }, | |
102 | { CS_BAD_TUPLE, "Bad CIS tuple" } | |
103 | }; | |
104 | ||
105 | ||
106 | static const lookup_t service_table[] = { | |
107 | { AccessConfigurationRegister, "AccessConfigurationRegister" }, | |
108 | { AddSocketServices, "AddSocketServices" }, | |
109 | { AdjustResourceInfo, "AdjustResourceInfo" }, | |
110 | { CheckEraseQueue, "CheckEraseQueue" }, | |
111 | { CloseMemory, "CloseMemory" }, | |
112 | { DeregisterClient, "DeregisterClient" }, | |
113 | { DeregisterEraseQueue, "DeregisterEraseQueue" }, | |
114 | { GetCardServicesInfo, "GetCardServicesInfo" }, | |
115 | { GetClientInfo, "GetClientInfo" }, | |
116 | { GetConfigurationInfo, "GetConfigurationInfo" }, | |
117 | { GetEventMask, "GetEventMask" }, | |
118 | { GetFirstClient, "GetFirstClient" }, | |
119 | { GetFirstRegion, "GetFirstRegion" }, | |
120 | { GetFirstTuple, "GetFirstTuple" }, | |
121 | { GetNextClient, "GetNextClient" }, | |
122 | { GetNextRegion, "GetNextRegion" }, | |
123 | { GetNextTuple, "GetNextTuple" }, | |
124 | { GetStatus, "GetStatus" }, | |
125 | { GetTupleData, "GetTupleData" }, | |
126 | { MapMemPage, "MapMemPage" }, | |
127 | { ModifyConfiguration, "ModifyConfiguration" }, | |
128 | { ModifyWindow, "ModifyWindow" }, | |
129 | { OpenMemory, "OpenMemory" }, | |
130 | { ParseTuple, "ParseTuple" }, | |
131 | { ReadMemory, "ReadMemory" }, | |
132 | { RegisterClient, "RegisterClient" }, | |
133 | { RegisterEraseQueue, "RegisterEraseQueue" }, | |
134 | { RegisterMTD, "RegisterMTD" }, | |
135 | { ReleaseConfiguration, "ReleaseConfiguration" }, | |
136 | { ReleaseIO, "ReleaseIO" }, | |
137 | { ReleaseIRQ, "ReleaseIRQ" }, | |
138 | { ReleaseWindow, "ReleaseWindow" }, | |
139 | { RequestConfiguration, "RequestConfiguration" }, | |
140 | { RequestIO, "RequestIO" }, | |
141 | { RequestIRQ, "RequestIRQ" }, | |
142 | { RequestSocketMask, "RequestSocketMask" }, | |
143 | { RequestWindow, "RequestWindow" }, | |
144 | { ResetCard, "ResetCard" }, | |
145 | { SetEventMask, "SetEventMask" }, | |
146 | { ValidateCIS, "ValidateCIS" }, | |
147 | { WriteMemory, "WriteMemory" }, | |
148 | { BindDevice, "BindDevice" }, | |
149 | { BindMTD, "BindMTD" }, | |
150 | { ReportError, "ReportError" }, | |
151 | { SuspendCard, "SuspendCard" }, | |
152 | { ResumeCard, "ResumeCard" }, | |
153 | { EjectCard, "EjectCard" }, | |
154 | { InsertCard, "InsertCard" }, | |
155 | { ReplaceCIS, "ReplaceCIS" } | |
156 | }; | |
157 | ||
158 | ||
2bc5a9bd | 159 | static int pcmcia_report_error(struct pcmcia_device *p_dev, error_info_t *err) |
1da177e4 LT |
160 | { |
161 | int i; | |
162 | char *serv; | |
163 | ||
2bc5a9bd | 164 | if (!p_dev) |
1da177e4 | 165 | printk(KERN_NOTICE); |
2bc5a9bd | 166 | else |
1da177e4 | 167 | printk(KERN_NOTICE "%s: ", p_dev->dev.bus_id); |
1da177e4 LT |
168 | |
169 | for (i = 0; i < ARRAY_SIZE(service_table); i++) | |
170 | if (service_table[i].key == err->func) | |
171 | break; | |
172 | if (i < ARRAY_SIZE(service_table)) | |
173 | serv = service_table[i].msg; | |
174 | else | |
175 | serv = "Unknown service number"; | |
176 | ||
177 | for (i = 0; i < ARRAY_SIZE(error_table); i++) | |
178 | if (error_table[i].key == err->retcode) | |
179 | break; | |
180 | if (i < ARRAY_SIZE(error_table)) | |
181 | printk("%s: %s\n", serv, error_table[i].msg); | |
182 | else | |
183 | printk("%s: Unknown error code %#x\n", serv, err->retcode); | |
184 | ||
185 | return CS_SUCCESS; | |
186 | } /* report_error */ | |
1da177e4 LT |
187 | |
188 | /* end of code which was in cs.c before */ | |
189 | ||
190 | /*======================================================================*/ | |
191 | ||
2bc5a9bd | 192 | void cs_error(struct pcmcia_device *p_dev, int func, int ret) |
1da177e4 LT |
193 | { |
194 | error_info_t err = { func, ret }; | |
2bc5a9bd | 195 | pcmcia_report_error(p_dev, &err); |
1da177e4 LT |
196 | } |
197 | EXPORT_SYMBOL(cs_error); | |
198 | ||
23a83bfe DB |
199 | |
200 | static void pcmcia_check_driver(struct pcmcia_driver *p_drv) | |
201 | { | |
202 | struct pcmcia_device_id *did = p_drv->id_table; | |
203 | unsigned int i; | |
204 | u32 hash; | |
205 | ||
f8cfa618 | 206 | if (!p_drv->probe || !p_drv->remove) |
ba5bb6b5 PR |
207 | printk(KERN_DEBUG "pcmcia: %s lacks a requisite callback " |
208 | "function\n", p_drv->drv.name); | |
1e212f36 | 209 | |
23a83bfe DB |
210 | while (did && did->match_flags) { |
211 | for (i=0; i<4; i++) { | |
212 | if (!did->prod_id[i]) | |
213 | continue; | |
214 | ||
215 | hash = crc32(0, did->prod_id[i], strlen(did->prod_id[i])); | |
216 | if (hash == did->prod_id_hash[i]) | |
217 | continue; | |
218 | ||
219 | printk(KERN_DEBUG "pcmcia: %s: invalid hash for " | |
220 | "product string \"%s\": is 0x%x, should " | |
221 | "be 0x%x\n", p_drv->drv.name, did->prod_id[i], | |
222 | did->prod_id_hash[i], hash); | |
5085cb26 DB |
223 | printk(KERN_DEBUG "pcmcia: see " |
224 | "Documentation/pcmcia/devicetable.txt for " | |
225 | "details\n"); | |
23a83bfe DB |
226 | } |
227 | did++; | |
228 | } | |
229 | ||
230 | return; | |
231 | } | |
232 | ||
daa9517d DB |
233 | |
234 | #ifdef CONFIG_PCMCIA_LOAD_CIS | |
235 | ||
236 | /** | |
237 | * pcmcia_load_firmware - load CIS from userspace if device-provided is broken | |
238 | * @dev - the pcmcia device which needs a CIS override | |
239 | * @filename - requested filename in /lib/firmware/cis/ | |
240 | * | |
241 | * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if | |
242 | * the one provided by the card is broken. The firmware files reside in | |
243 | * /lib/firmware/cis/ in userspace. | |
244 | */ | |
245 | static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
246 | { | |
247 | struct pcmcia_socket *s = dev->socket; | |
248 | const struct firmware *fw; | |
249 | char path[20]; | |
250 | int ret=-ENOMEM; | |
251 | cisdump_t *cis; | |
252 | ||
253 | if (!filename) | |
254 | return -EINVAL; | |
255 | ||
256 | ds_dbg(1, "trying to load firmware %s\n", filename); | |
257 | ||
258 | if (strlen(filename) > 14) | |
259 | return -EINVAL; | |
260 | ||
261 | snprintf(path, 20, "%s", filename); | |
262 | ||
263 | if (request_firmware(&fw, path, &dev->dev) == 0) { | |
264 | if (fw->size >= CISTPL_MAX_CIS_SIZE) | |
265 | goto release; | |
266 | ||
267 | cis = kmalloc(sizeof(cisdump_t), GFP_KERNEL); | |
268 | if (!cis) | |
269 | goto release; | |
270 | ||
271 | memset(cis, 0, sizeof(cisdump_t)); | |
272 | ||
273 | cis->Length = fw->size + 1; | |
274 | memcpy(cis->Data, fw->data, fw->size); | |
275 | ||
276 | if (!pcmcia_replace_cis(s, cis)) | |
277 | ret = 0; | |
278 | } | |
279 | release: | |
280 | release_firmware(fw); | |
281 | ||
282 | return (ret); | |
283 | } | |
284 | ||
285 | #else /* !CONFIG_PCMCIA_LOAD_CIS */ | |
286 | ||
287 | static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
288 | { | |
289 | return -ENODEV; | |
290 | } | |
291 | ||
292 | #endif | |
293 | ||
294 | ||
1da177e4 LT |
295 | /*======================================================================*/ |
296 | ||
1da177e4 | 297 | |
1da177e4 LT |
298 | /** |
299 | * pcmcia_register_driver - register a PCMCIA driver with the bus core | |
300 | * | |
301 | * Registers a PCMCIA driver with the PCMCIA bus core. | |
302 | */ | |
303 | static int pcmcia_device_probe(struct device *dev); | |
304 | static int pcmcia_device_remove(struct device * dev); | |
305 | ||
306 | int pcmcia_register_driver(struct pcmcia_driver *driver) | |
307 | { | |
308 | if (!driver) | |
309 | return -EINVAL; | |
310 | ||
23a83bfe DB |
311 | pcmcia_check_driver(driver); |
312 | ||
1da177e4 LT |
313 | /* initialize common fields */ |
314 | driver->drv.bus = &pcmcia_bus_type; | |
315 | driver->drv.owner = driver->owner; | |
316 | driver->drv.probe = pcmcia_device_probe; | |
317 | driver->drv.remove = pcmcia_device_remove; | |
318 | ||
319 | return driver_register(&driver->drv); | |
320 | } | |
321 | EXPORT_SYMBOL(pcmcia_register_driver); | |
322 | ||
323 | /** | |
324 | * pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core | |
325 | */ | |
326 | void pcmcia_unregister_driver(struct pcmcia_driver *driver) | |
327 | { | |
328 | driver_unregister(&driver->drv); | |
329 | } | |
330 | EXPORT_SYMBOL(pcmcia_unregister_driver); | |
331 | ||
1da177e4 LT |
332 | |
333 | /* pcmcia_device handling */ | |
334 | ||
e7a480d2 | 335 | struct pcmcia_device * pcmcia_get_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
336 | { |
337 | struct device *tmp_dev; | |
338 | tmp_dev = get_device(&p_dev->dev); | |
339 | if (!tmp_dev) | |
340 | return NULL; | |
341 | return to_pcmcia_dev(tmp_dev); | |
342 | } | |
343 | ||
e7a480d2 | 344 | void pcmcia_put_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
345 | { |
346 | if (p_dev) | |
347 | put_device(&p_dev->dev); | |
348 | } | |
349 | ||
350 | static void pcmcia_release_dev(struct device *dev) | |
351 | { | |
352 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
353 | ds_dbg(1, "releasing dev %p\n", p_dev); | |
dc109497 | 354 | pcmcia_put_socket(p_dev->socket); |
bd65a685 | 355 | kfree(p_dev->devname); |
1da177e4 LT |
356 | kfree(p_dev); |
357 | } | |
358 | ||
359 | ||
360 | static int pcmcia_device_probe(struct device * dev) | |
361 | { | |
362 | struct pcmcia_device *p_dev; | |
363 | struct pcmcia_driver *p_drv; | |
f8cfa618 | 364 | struct pcmcia_socket *s; |
1da177e4 LT |
365 | int ret = 0; |
366 | ||
367 | dev = get_device(dev); | |
368 | if (!dev) | |
369 | return -ENODEV; | |
370 | ||
371 | p_dev = to_pcmcia_dev(dev); | |
372 | p_drv = to_pcmcia_drv(dev->driver); | |
f8cfa618 | 373 | s = p_dev->socket; |
1da177e4 | 374 | |
f8cfa618 | 375 | if ((!p_drv->probe) || (!try_module_get(p_drv->owner))) { |
1da177e4 LT |
376 | ret = -EINVAL; |
377 | goto put_dev; | |
378 | } | |
379 | ||
f8cfa618 DB |
380 | p_dev->state &= ~CLIENT_UNBOUND; |
381 | ||
382 | /* set up the device configuration, if it hasn't been done before */ | |
383 | if (!s->functions) { | |
384 | cistpl_longlink_mfc_t mfc; | |
385 | if (pccard_read_tuple(s, p_dev->func, CISTPL_LONGLINK_MFC, | |
386 | &mfc) == CS_SUCCESS) | |
387 | s->functions = mfc.nfn; | |
388 | else | |
389 | s->functions = 1; | |
390 | s->config = kmalloc(sizeof(config_t) * s->functions, | |
391 | GFP_KERNEL); | |
392 | if (!s->config) { | |
393 | ret = -ENOMEM; | |
394 | goto put_module; | |
1da177e4 | 395 | } |
f8cfa618 | 396 | memset(s->config, 0, sizeof(config_t) * s->functions); |
1da177e4 LT |
397 | } |
398 | ||
f8cfa618 DB |
399 | ret = p_drv->probe(p_dev); |
400 | ||
401 | put_module: | |
1da177e4 LT |
402 | if (ret) |
403 | module_put(p_drv->owner); | |
404 | put_dev: | |
f8cfa618 | 405 | if (ret) |
1da177e4 LT |
406 | put_device(dev); |
407 | return (ret); | |
408 | } | |
409 | ||
410 | ||
411 | static int pcmcia_device_remove(struct device * dev) | |
412 | { | |
413 | struct pcmcia_device *p_dev; | |
414 | struct pcmcia_driver *p_drv; | |
cc3b4866 | 415 | int i; |
1da177e4 LT |
416 | |
417 | /* detach the "instance" */ | |
418 | p_dev = to_pcmcia_dev(dev); | |
419 | p_drv = to_pcmcia_drv(dev->driver); | |
f3990715 DB |
420 | if (!p_drv) |
421 | return 0; | |
1da177e4 | 422 | |
f3990715 | 423 | if (p_drv->remove) |
cc3b4866 DB |
424 | p_drv->remove(p_dev); |
425 | ||
f3990715 DB |
426 | /* check for proper unloading */ |
427 | if (p_dev->state & (CLIENT_IRQ_REQ|CLIENT_IO_REQ|CLIENT_CONFIG_LOCKED)) | |
428 | printk(KERN_INFO "pcmcia: driver %s did not release config properly\n", | |
429 | p_drv->drv.name); | |
cc3b4866 | 430 | |
f3990715 DB |
431 | for (i = 0; i < MAX_WIN; i++) |
432 | if (p_dev->state & CLIENT_WIN_REQ(i)) | |
433 | printk(KERN_INFO "pcmcia: driver %s did not release windows properly\n", | |
434 | p_drv->drv.name); | |
cc3b4866 | 435 | |
f3990715 | 436 | /* references from pcmcia_probe_device */ |
f8cfa618 | 437 | p_dev->state = CLIENT_UNBOUND; |
f3990715 DB |
438 | pcmcia_put_dev(p_dev); |
439 | module_put(p_drv->owner); | |
1da177e4 LT |
440 | |
441 | return 0; | |
442 | } | |
443 | ||
444 | ||
cc3b4866 DB |
445 | /* |
446 | * Removes a PCMCIA card from the device tree and socket list. | |
447 | */ | |
448 | static void pcmcia_card_remove(struct pcmcia_socket *s) | |
449 | { | |
450 | struct pcmcia_device *p_dev; | |
451 | unsigned long flags; | |
452 | ||
453 | ds_dbg(2, "unbind_request(%d)\n", s->sock); | |
454 | ||
455 | s->device_count = 0; | |
456 | ||
457 | for (;;) { | |
458 | /* unregister all pcmcia_devices registered with this socket*/ | |
459 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
460 | if (list_empty(&s->devices_list)) { | |
461 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
462 | return; | |
463 | } | |
464 | p_dev = list_entry((&s->devices_list)->next, struct pcmcia_device, socket_device_list); | |
465 | list_del(&p_dev->socket_device_list); | |
466 | p_dev->state |= CLIENT_STALE; | |
467 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
468 | ||
469 | device_unregister(&p_dev->dev); | |
470 | } | |
471 | ||
472 | return; | |
473 | } /* unbind_request */ | |
474 | ||
1da177e4 LT |
475 | |
476 | /* | |
477 | * pcmcia_device_query -- determine information about a pcmcia device | |
478 | */ | |
479 | static int pcmcia_device_query(struct pcmcia_device *p_dev) | |
480 | { | |
481 | cistpl_manfid_t manf_id; | |
482 | cistpl_funcid_t func_id; | |
76fa82fb | 483 | cistpl_vers_1_t *vers1; |
1da177e4 LT |
484 | unsigned int i; |
485 | ||
76fa82fb IM |
486 | vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL); |
487 | if (!vers1) | |
488 | return -ENOMEM; | |
489 | ||
1da177e4 LT |
490 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
491 | CISTPL_MANFID, &manf_id)) { | |
492 | p_dev->manf_id = manf_id.manf; | |
493 | p_dev->card_id = manf_id.card; | |
494 | p_dev->has_manf_id = 1; | |
495 | p_dev->has_card_id = 1; | |
496 | } | |
497 | ||
498 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, | |
499 | CISTPL_FUNCID, &func_id)) { | |
500 | p_dev->func_id = func_id.func; | |
501 | p_dev->has_func_id = 1; | |
502 | } else { | |
503 | /* rule of thumb: cards with no FUNCID, but with | |
504 | * common memory device geometry information, are | |
505 | * probably memory cards (from pcmcia-cs) */ | |
76fa82fb IM |
506 | cistpl_device_geo_t *devgeo; |
507 | ||
508 | devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL); | |
509 | if (!devgeo) { | |
510 | kfree(vers1); | |
511 | return -ENOMEM; | |
512 | } | |
1da177e4 | 513 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
76fa82fb | 514 | CISTPL_DEVICE_GEO, devgeo)) { |
1da177e4 LT |
515 | ds_dbg(0, "mem device geometry probably means " |
516 | "FUNCID_MEMORY\n"); | |
517 | p_dev->func_id = CISTPL_FUNCID_MEMORY; | |
518 | p_dev->has_func_id = 1; | |
519 | } | |
76fa82fb | 520 | kfree(devgeo); |
1da177e4 LT |
521 | } |
522 | ||
523 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_VERS_1, | |
76fa82fb IM |
524 | vers1)) { |
525 | for (i=0; i < vers1->ns; i++) { | |
1da177e4 LT |
526 | char *tmp; |
527 | unsigned int length; | |
528 | ||
76fa82fb | 529 | tmp = vers1->str + vers1->ofs[i]; |
1da177e4 LT |
530 | |
531 | length = strlen(tmp) + 1; | |
532 | if ((length < 3) || (length > 255)) | |
533 | continue; | |
534 | ||
535 | p_dev->prod_id[i] = kmalloc(sizeof(char) * length, | |
536 | GFP_KERNEL); | |
537 | if (!p_dev->prod_id[i]) | |
538 | continue; | |
539 | ||
540 | p_dev->prod_id[i] = strncpy(p_dev->prod_id[i], | |
541 | tmp, length); | |
542 | } | |
543 | } | |
544 | ||
76fa82fb | 545 | kfree(vers1); |
1da177e4 LT |
546 | return 0; |
547 | } | |
548 | ||
549 | ||
550 | /* device_add_lock is needed to avoid double registration by cardmgr and kernel. | |
551 | * Serializes pcmcia_device_add; will most likely be removed in future. | |
552 | * | |
553 | * While it has the caveat that adding new PCMCIA devices inside(!) device_register() | |
554 | * won't work, this doesn't matter much at the moment: the driver core doesn't | |
555 | * support it either. | |
556 | */ | |
557 | static DECLARE_MUTEX(device_add_lock); | |
558 | ||
dc109497 | 559 | struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function) |
1da177e4 LT |
560 | { |
561 | struct pcmcia_device *p_dev; | |
562 | unsigned long flags; | |
bd65a685 | 563 | int bus_id_len; |
1da177e4 | 564 | |
dc109497 | 565 | s = pcmcia_get_socket(s); |
1da177e4 LT |
566 | if (!s) |
567 | return NULL; | |
568 | ||
569 | down(&device_add_lock); | |
570 | ||
1ad275e3 DB |
571 | /* max of 2 devices per card */ |
572 | if (s->device_count == 2) | |
573 | goto err_put; | |
574 | ||
1da177e4 LT |
575 | p_dev = kmalloc(sizeof(struct pcmcia_device), GFP_KERNEL); |
576 | if (!p_dev) | |
577 | goto err_put; | |
578 | memset(p_dev, 0, sizeof(struct pcmcia_device)); | |
579 | ||
dc109497 | 580 | p_dev->socket = s; |
1da177e4 LT |
581 | p_dev->device_no = (s->device_count++); |
582 | p_dev->func = function; | |
583 | ||
584 | p_dev->dev.bus = &pcmcia_bus_type; | |
dc109497 | 585 | p_dev->dev.parent = s->dev.dev; |
1da177e4 | 586 | p_dev->dev.release = pcmcia_release_dev; |
bd65a685 BG |
587 | bus_id_len = sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no); |
588 | ||
589 | p_dev->devname = kmalloc(6 + bus_id_len + 1, GFP_KERNEL); | |
590 | if (!p_dev->devname) | |
591 | goto err_free; | |
592 | sprintf (p_dev->devname, "pcmcia%s", p_dev->dev.bus_id); | |
1da177e4 LT |
593 | |
594 | /* compat */ | |
e12a9a93 | 595 | p_dev->state = CLIENT_UNBOUND; |
1da177e4 LT |
596 | |
597 | /* Add to the list in pcmcia_bus_socket */ | |
598 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
599 | list_add_tail(&p_dev->socket_device_list, &s->devices_list); | |
600 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
601 | ||
807277cb DB |
602 | printk(KERN_NOTICE "pcmcia: registering new device %s\n", |
603 | p_dev->devname); | |
604 | ||
1ad275e3 DB |
605 | pcmcia_device_query(p_dev); |
606 | ||
1da177e4 LT |
607 | if (device_register(&p_dev->dev)) { |
608 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
609 | list_del(&p_dev->socket_device_list); | |
610 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
611 | ||
612 | goto err_free; | |
613 | } | |
614 | ||
615 | up(&device_add_lock); | |
616 | ||
617 | return p_dev; | |
618 | ||
619 | err_free: | |
bd65a685 | 620 | kfree(p_dev->devname); |
1da177e4 LT |
621 | kfree(p_dev); |
622 | s->device_count--; | |
623 | err_put: | |
624 | up(&device_add_lock); | |
dc109497 | 625 | pcmcia_put_socket(s); |
1da177e4 LT |
626 | |
627 | return NULL; | |
628 | } | |
629 | ||
630 | ||
631 | static int pcmcia_card_add(struct pcmcia_socket *s) | |
632 | { | |
633 | cisinfo_t cisinfo; | |
634 | cistpl_longlink_mfc_t mfc; | |
635 | unsigned int no_funcs, i; | |
636 | int ret = 0; | |
637 | ||
638 | if (!(s->resource_setup_done)) | |
639 | return -EAGAIN; /* try again, but later... */ | |
640 | ||
de75914e DB |
641 | if (pcmcia_validate_mem(s)) |
642 | return -EAGAIN; /* try again, but later... */ | |
643 | ||
1da177e4 LT |
644 | ret = pccard_validate_cis(s, BIND_FN_ALL, &cisinfo); |
645 | if (ret || !cisinfo.Chains) { | |
646 | ds_dbg(0, "invalid CIS or invalid resources\n"); | |
647 | return -ENODEV; | |
648 | } | |
649 | ||
650 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
651 | no_funcs = mfc.nfn; | |
652 | else | |
653 | no_funcs = 1; | |
654 | ||
1da177e4 | 655 | for (i=0; i < no_funcs; i++) |
dc109497 | 656 | pcmcia_device_add(s, i); |
1da177e4 LT |
657 | |
658 | return (ret); | |
659 | } | |
660 | ||
661 | ||
1ad275e3 DB |
662 | static void pcmcia_delayed_add_pseudo_device(void *data) |
663 | { | |
dc109497 | 664 | struct pcmcia_socket *s = data; |
1ad275e3 | 665 | pcmcia_device_add(s, 0); |
b5e43913 | 666 | s->pcmcia_state.device_add_pending = 0; |
1ad275e3 DB |
667 | } |
668 | ||
dc109497 | 669 | static inline void pcmcia_add_pseudo_device(struct pcmcia_socket *s) |
1ad275e3 | 670 | { |
b5e43913 | 671 | if (!s->pcmcia_state.device_add_pending) { |
b5e43913 | 672 | s->pcmcia_state.device_add_pending = 1; |
5d546f54 | 673 | schedule_work(&s->device_add); |
1ad275e3 DB |
674 | } |
675 | return; | |
676 | } | |
677 | ||
e2f0b534 | 678 | static int pcmcia_requery(struct device *dev, void * _data) |
ff1fa9ef | 679 | { |
e2f0b534 DB |
680 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
681 | if (!p_dev->dev.driver) | |
682 | pcmcia_device_query(p_dev); | |
683 | ||
684 | return 0; | |
685 | } | |
686 | ||
687 | static void pcmcia_bus_rescan(struct pcmcia_socket *skt) | |
688 | { | |
689 | int no_devices=0; | |
690 | unsigned long flags; | |
691 | ||
ff1fa9ef | 692 | /* must be called with skt_sem held */ |
e2f0b534 | 693 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
dc109497 | 694 | if (list_empty(&skt->devices_list)) |
e2f0b534 DB |
695 | no_devices=1; |
696 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
697 | ||
698 | /* if no devices were added for this socket yet because of | |
699 | * missing resource information or other trouble, we need to | |
700 | * do this now. */ | |
701 | if (no_devices) { | |
702 | int ret = pcmcia_card_add(skt); | |
703 | if (ret) | |
704 | return; | |
705 | } | |
706 | ||
707 | /* some device information might have changed because of a CIS | |
708 | * update or because we can finally read it correctly... so | |
709 | * determine it again, overwriting old values if necessary. */ | |
710 | bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery); | |
711 | ||
712 | /* we re-scan all devices, not just the ones connected to this | |
713 | * socket. This does not matter, though. */ | |
a5b55778 | 714 | bus_rescan_devices(&pcmcia_bus_type); |
ff1fa9ef | 715 | } |
1ad275e3 DB |
716 | |
717 | static inline int pcmcia_devmatch(struct pcmcia_device *dev, | |
718 | struct pcmcia_device_id *did) | |
719 | { | |
720 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) { | |
721 | if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id)) | |
722 | return 0; | |
723 | } | |
724 | ||
725 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) { | |
726 | if ((!dev->has_card_id) || (dev->card_id != did->card_id)) | |
727 | return 0; | |
728 | } | |
729 | ||
730 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) { | |
731 | if (dev->func != did->function) | |
732 | return 0; | |
733 | } | |
734 | ||
735 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) { | |
736 | if (!dev->prod_id[0]) | |
737 | return 0; | |
738 | if (strcmp(did->prod_id[0], dev->prod_id[0])) | |
739 | return 0; | |
740 | } | |
741 | ||
742 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) { | |
743 | if (!dev->prod_id[1]) | |
744 | return 0; | |
745 | if (strcmp(did->prod_id[1], dev->prod_id[1])) | |
746 | return 0; | |
747 | } | |
748 | ||
749 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) { | |
750 | if (!dev->prod_id[2]) | |
751 | return 0; | |
752 | if (strcmp(did->prod_id[2], dev->prod_id[2])) | |
753 | return 0; | |
754 | } | |
755 | ||
756 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) { | |
757 | if (!dev->prod_id[3]) | |
758 | return 0; | |
759 | if (strcmp(did->prod_id[3], dev->prod_id[3])) | |
760 | return 0; | |
761 | } | |
762 | ||
763 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { | |
764 | /* handle pseudo multifunction devices: | |
765 | * there are at most two pseudo multifunction devices. | |
766 | * if we're matching against the first, schedule a | |
767 | * call which will then check whether there are two | |
768 | * pseudo devices, and if not, add the second one. | |
769 | */ | |
770 | if (dev->device_no == 0) | |
dc109497 | 771 | pcmcia_add_pseudo_device(dev->socket); |
1ad275e3 DB |
772 | |
773 | if (dev->device_no != did->device_no) | |
774 | return 0; | |
775 | } | |
776 | ||
777 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { | |
778 | if ((!dev->has_func_id) || (dev->func_id != did->func_id)) | |
779 | return 0; | |
780 | ||
781 | /* if this is a pseudo-multi-function device, | |
782 | * we need explicit matches */ | |
783 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) | |
784 | return 0; | |
785 | if (dev->device_no) | |
786 | return 0; | |
787 | ||
788 | /* also, FUNC_ID matching needs to be activated by userspace | |
789 | * after it has re-checked that there is no possible module | |
790 | * with a prod_id/manf_id/card_id match. | |
791 | */ | |
792 | if (!dev->allow_func_id_match) | |
793 | return 0; | |
794 | } | |
795 | ||
ea7b3882 | 796 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { |
daa9517d DB |
797 | if (!dev->socket->fake_cis) |
798 | pcmcia_load_firmware(dev, did->cisfile); | |
799 | ||
800 | if (!dev->socket->fake_cis) | |
ea7b3882 | 801 | return 0; |
ea7b3882 DB |
802 | } |
803 | ||
f602ff7e DB |
804 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { |
805 | int i; | |
806 | for (i=0; i<4; i++) | |
807 | if (dev->prod_id[i]) | |
808 | return 0; | |
809 | if (dev->has_manf_id || dev->has_card_id || dev->has_func_id) | |
810 | return 0; | |
811 | } | |
812 | ||
1ad275e3 DB |
813 | dev->dev.driver_data = (void *) did; |
814 | ||
815 | return 1; | |
816 | } | |
817 | ||
818 | ||
1da177e4 LT |
819 | static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) { |
820 | struct pcmcia_device * p_dev = to_pcmcia_dev(dev); | |
821 | struct pcmcia_driver * p_drv = to_pcmcia_drv(drv); | |
1ad275e3 | 822 | struct pcmcia_device_id *did = p_drv->id_table; |
1da177e4 LT |
823 | |
824 | /* matching by cardmgr */ | |
825 | if (p_dev->cardmgr == p_drv) | |
826 | return 1; | |
827 | ||
1ad275e3 DB |
828 | while (did && did->match_flags) { |
829 | if (pcmcia_devmatch(p_dev, did)) | |
830 | return 1; | |
831 | did++; | |
832 | } | |
833 | ||
1da177e4 LT |
834 | return 0; |
835 | } | |
836 | ||
840c2ac5 DB |
837 | #ifdef CONFIG_HOTPLUG |
838 | ||
312c004d KS |
839 | static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, |
840 | char *buffer, int buffer_size) | |
840c2ac5 DB |
841 | { |
842 | struct pcmcia_device *p_dev; | |
843 | int i, length = 0; | |
844 | u32 hash[4] = { 0, 0, 0, 0}; | |
845 | ||
846 | if (!dev) | |
847 | return -ENODEV; | |
848 | ||
849 | p_dev = to_pcmcia_dev(dev); | |
850 | ||
851 | /* calculate hashes */ | |
852 | for (i=0; i<4; i++) { | |
853 | if (!p_dev->prod_id[i]) | |
854 | continue; | |
855 | hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); | |
856 | } | |
857 | ||
858 | i = 0; | |
859 | ||
312c004d KS |
860 | if (add_uevent_var(envp, num_envp, &i, |
861 | buffer, buffer_size, &length, | |
862 | "SOCKET_NO=%u", | |
863 | p_dev->socket->sock)) | |
840c2ac5 DB |
864 | return -ENOMEM; |
865 | ||
312c004d KS |
866 | if (add_uevent_var(envp, num_envp, &i, |
867 | buffer, buffer_size, &length, | |
868 | "DEVICE_NO=%02X", | |
869 | p_dev->device_no)) | |
840c2ac5 DB |
870 | return -ENOMEM; |
871 | ||
312c004d KS |
872 | if (add_uevent_var(envp, num_envp, &i, |
873 | buffer, buffer_size, &length, | |
874 | "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
875 | "pa%08Xpb%08Xpc%08Xpd%08X", | |
876 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
877 | p_dev->has_card_id ? p_dev->card_id : 0, | |
878 | p_dev->has_func_id ? p_dev->func_id : 0, | |
879 | p_dev->func, | |
880 | p_dev->device_no, | |
881 | hash[0], | |
882 | hash[1], | |
883 | hash[2], | |
884 | hash[3])) | |
840c2ac5 DB |
885 | return -ENOMEM; |
886 | ||
887 | envp[i] = NULL; | |
888 | ||
889 | return 0; | |
890 | } | |
891 | ||
892 | #else | |
893 | ||
312c004d | 894 | static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, |
840c2ac5 DB |
895 | char *buffer, int buffer_size) |
896 | { | |
897 | return -ENODEV; | |
898 | } | |
899 | ||
900 | #endif | |
901 | ||
1da177e4 LT |
902 | /************************ per-device sysfs output ***************************/ |
903 | ||
904 | #define pcmcia_device_attr(field, test, format) \ | |
e404e274 | 905 | static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
906 | { \ |
907 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
908 | return p_dev->test ? sprintf (buf, format, p_dev->field) : -ENODEV; \ | |
909 | } | |
910 | ||
911 | #define pcmcia_device_stringattr(name, field) \ | |
e404e274 | 912 | static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
913 | { \ |
914 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
915 | return p_dev->field ? sprintf (buf, "%s\n", p_dev->field) : -ENODEV; \ | |
916 | } | |
917 | ||
918 | pcmcia_device_attr(func, socket, "0x%02x\n"); | |
919 | pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); | |
920 | pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); | |
921 | pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); | |
922 | pcmcia_device_stringattr(prod_id1, prod_id[0]); | |
923 | pcmcia_device_stringattr(prod_id2, prod_id[1]); | |
924 | pcmcia_device_stringattr(prod_id3, prod_id[2]); | |
925 | pcmcia_device_stringattr(prod_id4, prod_id[3]); | |
926 | ||
3704511b | 927 | static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) |
3248ff43 DB |
928 | { |
929 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
930 | int i; | |
931 | u32 hash[4] = { 0, 0, 0, 0}; | |
932 | ||
933 | /* calculate hashes */ | |
934 | for (i=0; i<4; i++) { | |
935 | if (!p_dev->prod_id[i]) | |
936 | continue; | |
937 | hash[i] = crc32(0,p_dev->prod_id[i],strlen(p_dev->prod_id[i])); | |
938 | } | |
939 | return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
940 | "pa%08Xpb%08Xpc%08Xpd%08X\n", | |
941 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
942 | p_dev->has_card_id ? p_dev->card_id : 0, | |
943 | p_dev->has_func_id ? p_dev->func_id : 0, | |
944 | p_dev->func, p_dev->device_no, | |
945 | hash[0], hash[1], hash[2], hash[3]); | |
946 | } | |
a5b55778 | 947 | |
3248ff43 DB |
948 | static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, |
949 | struct device_attribute *attr, const char *buf, size_t count) | |
a5b55778 DB |
950 | { |
951 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
952 | if (!count) | |
953 | return -EINVAL; | |
954 | ||
955 | down(&p_dev->socket->skt_sem); | |
956 | p_dev->allow_func_id_match = 1; | |
957 | up(&p_dev->socket->skt_sem); | |
958 | ||
959 | bus_rescan_devices(&pcmcia_bus_type); | |
960 | ||
961 | return count; | |
962 | } | |
963 | ||
1da177e4 LT |
964 | static struct device_attribute pcmcia_dev_attrs[] = { |
965 | __ATTR(function, 0444, func_show, NULL), | |
966 | __ATTR_RO(func_id), | |
967 | __ATTR_RO(manf_id), | |
968 | __ATTR_RO(card_id), | |
969 | __ATTR_RO(prod_id1), | |
970 | __ATTR_RO(prod_id2), | |
971 | __ATTR_RO(prod_id3), | |
972 | __ATTR_RO(prod_id4), | |
3248ff43 | 973 | __ATTR_RO(modalias), |
a5b55778 | 974 | __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), |
1da177e4 LT |
975 | __ATTR_NULL, |
976 | }; | |
977 | ||
8e9e793d DB |
978 | /* PM support, also needed for reset */ |
979 | ||
980 | static int pcmcia_dev_suspend(struct device * dev, pm_message_t state) | |
981 | { | |
982 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
983 | struct pcmcia_driver *p_drv = NULL; | |
984 | ||
985 | if (dev->driver) | |
986 | p_drv = to_pcmcia_drv(dev->driver); | |
987 | ||
988 | if (p_drv && p_drv->suspend) | |
989 | return p_drv->suspend(p_dev); | |
990 | ||
991 | return 0; | |
992 | } | |
993 | ||
994 | ||
995 | static int pcmcia_dev_resume(struct device * dev) | |
996 | { | |
997 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
998 | struct pcmcia_driver *p_drv = NULL; | |
999 | ||
1000 | if (dev->driver) | |
1001 | p_drv = to_pcmcia_drv(dev->driver); | |
1002 | ||
1003 | if (p_drv && p_drv->resume) | |
1004 | return p_drv->resume(p_dev); | |
1005 | ||
1006 | return 0; | |
1007 | } | |
1008 | ||
1009 | ||
1010 | static int pcmcia_bus_suspend_callback(struct device *dev, void * _data) | |
1011 | { | |
1012 | struct pcmcia_socket *skt = _data; | |
1013 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1014 | ||
1015 | if (p_dev->socket != skt) | |
1016 | return 0; | |
1017 | ||
1018 | return dpm_runtime_suspend(dev, PMSG_SUSPEND); | |
1019 | } | |
1020 | ||
1021 | static int pcmcia_bus_resume_callback(struct device *dev, void * _data) | |
1022 | { | |
1023 | struct pcmcia_socket *skt = _data; | |
1024 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1025 | ||
1026 | if (p_dev->socket != skt) | |
1027 | return 0; | |
1028 | ||
1029 | dpm_runtime_resume(dev); | |
1030 | ||
1031 | return 0; | |
1032 | } | |
1033 | ||
1034 | static int pcmcia_bus_resume(struct pcmcia_socket *skt) | |
1035 | { | |
1036 | bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback); | |
1037 | return 0; | |
1038 | } | |
1039 | ||
1040 | static int pcmcia_bus_suspend(struct pcmcia_socket *skt) | |
1041 | { | |
1042 | if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt, | |
1043 | pcmcia_bus_suspend_callback)) { | |
1044 | pcmcia_bus_resume(skt); | |
1045 | return -EIO; | |
1046 | } | |
1047 | return 0; | |
1048 | } | |
1049 | ||
1da177e4 | 1050 | |
1da177e4 LT |
1051 | /*====================================================================== |
1052 | ||
1053 | The card status event handler. | |
1054 | ||
1055 | ======================================================================*/ | |
1056 | ||
1da177e4 LT |
1057 | /* Normally, the event is passed to individual drivers after |
1058 | * informing userspace. Only for CS_EVENT_CARD_REMOVAL this | |
1059 | * is inversed to maintain historic compatibility. | |
1060 | */ | |
1061 | ||
1062 | static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) | |
1063 | { | |
dc109497 | 1064 | struct pcmcia_socket *s = pcmcia_get_socket(skt); |
1da177e4 LT |
1065 | |
1066 | ds_dbg(1, "ds_event(0x%06x, %d, 0x%p)\n", | |
dc109497 | 1067 | event, priority, skt); |
1da177e4 | 1068 | |
f8cfa618 | 1069 | switch (event) { |
1da177e4 | 1070 | case CS_EVENT_CARD_REMOVAL: |
b5e43913 | 1071 | s->pcmcia_state.present = 0; |
cc3b4866 | 1072 | pcmcia_card_remove(skt); |
dc109497 | 1073 | handle_event(skt, event); |
1da177e4 | 1074 | break; |
f8cfa618 | 1075 | |
1da177e4 | 1076 | case CS_EVENT_CARD_INSERTION: |
b5e43913 | 1077 | s->pcmcia_state.present = 1; |
1da177e4 | 1078 | pcmcia_card_add(skt); |
dc109497 | 1079 | handle_event(skt, event); |
1da177e4 LT |
1080 | break; |
1081 | ||
1082 | case CS_EVENT_EJECTION_REQUEST: | |
1da177e4 LT |
1083 | break; |
1084 | ||
8e9e793d DB |
1085 | case CS_EVENT_PM_SUSPEND: |
1086 | case CS_EVENT_PM_RESUME: | |
1087 | case CS_EVENT_RESET_PHYSICAL: | |
1088 | case CS_EVENT_CARD_RESET: | |
1da177e4 | 1089 | default: |
dc109497 | 1090 | handle_event(skt, event); |
1da177e4 LT |
1091 | break; |
1092 | } | |
1093 | ||
dc109497 DB |
1094 | pcmcia_put_socket(s); |
1095 | ||
1da177e4 LT |
1096 | return 0; |
1097 | } /* ds_event */ | |
1098 | ||
1099 | ||
90c6cdd1 DB |
1100 | static struct pcmcia_callback pcmcia_bus_callback = { |
1101 | .owner = THIS_MODULE, | |
1102 | .event = ds_event, | |
1103 | .requery = pcmcia_bus_rescan, | |
8e9e793d DB |
1104 | .suspend = pcmcia_bus_suspend, |
1105 | .resume = pcmcia_bus_resume, | |
90c6cdd1 DB |
1106 | }; |
1107 | ||
d8539d81 DT |
1108 | static int __devinit pcmcia_bus_add_socket(struct class_device *class_dev, |
1109 | struct class_interface *class_intf) | |
1da177e4 LT |
1110 | { |
1111 | struct pcmcia_socket *socket = class_get_devdata(class_dev); | |
1da177e4 LT |
1112 | int ret; |
1113 | ||
dc109497 DB |
1114 | socket = pcmcia_get_socket(socket); |
1115 | if (!socket) { | |
1da177e4 | 1116 | printk(KERN_ERR "PCMCIA obtaining reference to socket %p failed\n", socket); |
1da177e4 LT |
1117 | return -ENODEV; |
1118 | } | |
1119 | ||
1da177e4 LT |
1120 | /* |
1121 | * Ugly. But we want to wait for the socket threads to have started up. | |
1122 | * We really should let the drivers themselves drive some of this.. | |
1123 | */ | |
1124 | msleep(250); | |
1125 | ||
e7a480d2 | 1126 | #ifdef CONFIG_PCMCIA_IOCTL |
dc109497 | 1127 | init_waitqueue_head(&socket->queue); |
e7a480d2 | 1128 | #endif |
dc109497 DB |
1129 | INIT_LIST_HEAD(&socket->devices_list); |
1130 | INIT_WORK(&socket->device_add, pcmcia_delayed_add_pseudo_device, socket); | |
1131 | memset(&socket->pcmcia_state, 0, sizeof(u8)); | |
1132 | socket->device_count = 0; | |
1da177e4 | 1133 | |
90c6cdd1 | 1134 | ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback); |
1da177e4 LT |
1135 | if (ret) { |
1136 | printk(KERN_ERR "PCMCIA registration PCCard core failed for socket %p\n", socket); | |
dc109497 | 1137 | pcmcia_put_socket(socket); |
1da177e4 LT |
1138 | return (ret); |
1139 | } | |
1140 | ||
1141 | return 0; | |
1142 | } | |
1143 | ||
d8539d81 DT |
1144 | static void pcmcia_bus_remove_socket(struct class_device *class_dev, |
1145 | struct class_interface *class_intf) | |
1da177e4 LT |
1146 | { |
1147 | struct pcmcia_socket *socket = class_get_devdata(class_dev); | |
1148 | ||
dc109497 | 1149 | if (!socket) |
1da177e4 LT |
1150 | return; |
1151 | ||
dc109497 | 1152 | socket->pcmcia_state.dead = 1; |
1da177e4 LT |
1153 | pccard_register_pcmcia(socket, NULL); |
1154 | ||
dc109497 | 1155 | pcmcia_put_socket(socket); |
1da177e4 LT |
1156 | |
1157 | return; | |
1158 | } | |
1159 | ||
1160 | ||
1161 | /* the pcmcia_bus_interface is used to handle pcmcia socket devices */ | |
1162 | static struct class_interface pcmcia_bus_interface = { | |
1163 | .class = &pcmcia_socket_class, | |
1164 | .add = &pcmcia_bus_add_socket, | |
1165 | .remove = &pcmcia_bus_remove_socket, | |
1166 | }; | |
1167 | ||
1168 | ||
e7a480d2 | 1169 | struct bus_type pcmcia_bus_type = { |
1da177e4 | 1170 | .name = "pcmcia", |
312c004d | 1171 | .uevent = pcmcia_bus_uevent, |
1da177e4 LT |
1172 | .match = pcmcia_bus_match, |
1173 | .dev_attrs = pcmcia_dev_attrs, | |
8e9e793d DB |
1174 | .suspend = pcmcia_dev_suspend, |
1175 | .resume = pcmcia_dev_resume, | |
1da177e4 | 1176 | }; |
1da177e4 LT |
1177 | |
1178 | ||
1179 | static int __init init_pcmcia_bus(void) | |
1180 | { | |
1da177e4 LT |
1181 | spin_lock_init(&pcmcia_dev_list_lock); |
1182 | ||
1183 | bus_register(&pcmcia_bus_type); | |
1184 | class_interface_register(&pcmcia_bus_interface); | |
1185 | ||
e7a480d2 | 1186 | pcmcia_setup_ioctl(); |
1da177e4 LT |
1187 | |
1188 | return 0; | |
1189 | } | |
1190 | fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that | |
1191 | * pcmcia_socket_class is already registered */ | |
1192 | ||
1193 | ||
1194 | static void __exit exit_pcmcia_bus(void) | |
1195 | { | |
e7a480d2 | 1196 | pcmcia_cleanup_ioctl(); |
1da177e4 | 1197 | |
e7a480d2 | 1198 | class_interface_unregister(&pcmcia_bus_interface); |
1da177e4 LT |
1199 | |
1200 | bus_unregister(&pcmcia_bus_type); | |
1201 | } | |
1202 | module_exit(exit_pcmcia_bus); | |
1203 | ||
1204 | ||
1da177e4 | 1205 | MODULE_ALIAS("ds"); |