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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * ds.c -- 16-bit PCMCIA core support | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * The initial developer of the original code is David A. Hinds | |
9 | * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds | |
10 | * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. | |
11 | * | |
12 | * (C) 1999 David A. Hinds | |
3b659fb8 | 13 | * (C) 2003 - 2005 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> |
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 | ||
8084b372 | 267 | cis = kzalloc(sizeof(cisdump_t), GFP_KERNEL); |
daa9517d DB |
268 | if (!cis) |
269 | goto release; | |
270 | ||
daa9517d DB |
271 | cis->Length = fw->size + 1; |
272 | memcpy(cis->Data, fw->data, fw->size); | |
273 | ||
274 | if (!pcmcia_replace_cis(s, cis)) | |
275 | ret = 0; | |
276 | } | |
277 | release: | |
278 | release_firmware(fw); | |
279 | ||
280 | return (ret); | |
281 | } | |
282 | ||
283 | #else /* !CONFIG_PCMCIA_LOAD_CIS */ | |
284 | ||
285 | static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
286 | { | |
287 | return -ENODEV; | |
288 | } | |
289 | ||
290 | #endif | |
291 | ||
292 | ||
1da177e4 LT |
293 | /*======================================================================*/ |
294 | ||
1da177e4 | 295 | |
1da177e4 LT |
296 | /** |
297 | * pcmcia_register_driver - register a PCMCIA driver with the bus core | |
298 | * | |
299 | * Registers a PCMCIA driver with the PCMCIA bus core. | |
300 | */ | |
301 | static int pcmcia_device_probe(struct device *dev); | |
302 | static int pcmcia_device_remove(struct device * dev); | |
303 | ||
304 | int pcmcia_register_driver(struct pcmcia_driver *driver) | |
305 | { | |
306 | if (!driver) | |
307 | return -EINVAL; | |
308 | ||
23a83bfe DB |
309 | pcmcia_check_driver(driver); |
310 | ||
1da177e4 LT |
311 | /* initialize common fields */ |
312 | driver->drv.bus = &pcmcia_bus_type; | |
313 | driver->drv.owner = driver->owner; | |
1da177e4 LT |
314 | |
315 | return driver_register(&driver->drv); | |
316 | } | |
317 | EXPORT_SYMBOL(pcmcia_register_driver); | |
318 | ||
319 | /** | |
320 | * pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core | |
321 | */ | |
322 | void pcmcia_unregister_driver(struct pcmcia_driver *driver) | |
323 | { | |
324 | driver_unregister(&driver->drv); | |
325 | } | |
326 | EXPORT_SYMBOL(pcmcia_unregister_driver); | |
327 | ||
1da177e4 LT |
328 | |
329 | /* pcmcia_device handling */ | |
330 | ||
e7a480d2 | 331 | struct pcmcia_device * pcmcia_get_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
332 | { |
333 | struct device *tmp_dev; | |
334 | tmp_dev = get_device(&p_dev->dev); | |
335 | if (!tmp_dev) | |
336 | return NULL; | |
337 | return to_pcmcia_dev(tmp_dev); | |
338 | } | |
339 | ||
e7a480d2 | 340 | void pcmcia_put_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
341 | { |
342 | if (p_dev) | |
343 | put_device(&p_dev->dev); | |
344 | } | |
345 | ||
360b65b9 DB |
346 | static void pcmcia_release_function(struct kref *ref) |
347 | { | |
348 | struct config_t *c = container_of(ref, struct config_t, ref); | |
349 | kfree(c); | |
350 | } | |
351 | ||
1da177e4 LT |
352 | static void pcmcia_release_dev(struct device *dev) |
353 | { | |
354 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
355 | ds_dbg(1, "releasing dev %p\n", p_dev); | |
dc109497 | 356 | pcmcia_put_socket(p_dev->socket); |
bd65a685 | 357 | kfree(p_dev->devname); |
360b65b9 | 358 | kref_put(&p_dev->function_config->ref, pcmcia_release_function); |
1da177e4 LT |
359 | kfree(p_dev); |
360 | } | |
361 | ||
82d56e6d DB |
362 | static void pcmcia_add_pseudo_device(struct pcmcia_socket *s) |
363 | { | |
364 | if (!s->pcmcia_state.device_add_pending) { | |
365 | s->pcmcia_state.device_add_pending = 1; | |
366 | schedule_work(&s->device_add); | |
367 | } | |
368 | return; | |
369 | } | |
1da177e4 LT |
370 | |
371 | static int pcmcia_device_probe(struct device * dev) | |
372 | { | |
373 | struct pcmcia_device *p_dev; | |
374 | struct pcmcia_driver *p_drv; | |
82d56e6d | 375 | struct pcmcia_device_id *did; |
f8cfa618 | 376 | struct pcmcia_socket *s; |
1da177e4 LT |
377 | int ret = 0; |
378 | ||
379 | dev = get_device(dev); | |
380 | if (!dev) | |
381 | return -ENODEV; | |
382 | ||
383 | p_dev = to_pcmcia_dev(dev); | |
384 | p_drv = to_pcmcia_drv(dev->driver); | |
f8cfa618 | 385 | s = p_dev->socket; |
1da177e4 | 386 | |
360b65b9 DB |
387 | if ((!p_drv->probe) || (!p_dev->function_config) || |
388 | (!try_module_get(p_drv->owner))) { | |
1da177e4 LT |
389 | ret = -EINVAL; |
390 | goto put_dev; | |
391 | } | |
392 | ||
f8cfa618 DB |
393 | p_dev->state &= ~CLIENT_UNBOUND; |
394 | ||
f8cfa618 | 395 | ret = p_drv->probe(p_dev); |
82d56e6d DB |
396 | if (ret) |
397 | goto put_module; | |
398 | ||
399 | /* handle pseudo multifunction devices: | |
400 | * there are at most two pseudo multifunction devices. | |
401 | * if we're matching against the first, schedule a | |
402 | * call which will then check whether there are two | |
403 | * pseudo devices, and if not, add the second one. | |
404 | */ | |
405 | did = (struct pcmcia_device_id *) p_dev->dev.driver_data; | |
4ceadbf5 | 406 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
82d56e6d DB |
407 | (p_dev->socket->device_count == 1) && (p_dev->device_no == 0)) |
408 | pcmcia_add_pseudo_device(p_dev->socket); | |
f8cfa618 DB |
409 | |
410 | put_module: | |
1da177e4 LT |
411 | if (ret) |
412 | module_put(p_drv->owner); | |
413 | put_dev: | |
f8cfa618 | 414 | if (ret) |
1da177e4 LT |
415 | put_device(dev); |
416 | return (ret); | |
417 | } | |
418 | ||
419 | ||
420 | static int pcmcia_device_remove(struct device * dev) | |
421 | { | |
422 | struct pcmcia_device *p_dev; | |
423 | struct pcmcia_driver *p_drv; | |
cc3b4866 | 424 | int i; |
1da177e4 LT |
425 | |
426 | /* detach the "instance" */ | |
427 | p_dev = to_pcmcia_dev(dev); | |
428 | p_drv = to_pcmcia_drv(dev->driver); | |
f3990715 DB |
429 | if (!p_drv) |
430 | return 0; | |
1da177e4 | 431 | |
f3990715 | 432 | if (p_drv->remove) |
cc3b4866 DB |
433 | p_drv->remove(p_dev); |
434 | ||
f3990715 DB |
435 | /* check for proper unloading */ |
436 | if (p_dev->state & (CLIENT_IRQ_REQ|CLIENT_IO_REQ|CLIENT_CONFIG_LOCKED)) | |
437 | printk(KERN_INFO "pcmcia: driver %s did not release config properly\n", | |
438 | p_drv->drv.name); | |
cc3b4866 | 439 | |
f3990715 DB |
440 | for (i = 0; i < MAX_WIN; i++) |
441 | if (p_dev->state & CLIENT_WIN_REQ(i)) | |
442 | printk(KERN_INFO "pcmcia: driver %s did not release windows properly\n", | |
443 | p_drv->drv.name); | |
cc3b4866 | 444 | |
f3990715 | 445 | /* references from pcmcia_probe_device */ |
f8cfa618 | 446 | p_dev->state = CLIENT_UNBOUND; |
f3990715 DB |
447 | pcmcia_put_dev(p_dev); |
448 | module_put(p_drv->owner); | |
1da177e4 LT |
449 | |
450 | return 0; | |
451 | } | |
452 | ||
453 | ||
cc3b4866 DB |
454 | /* |
455 | * Removes a PCMCIA card from the device tree and socket list. | |
456 | */ | |
457 | static void pcmcia_card_remove(struct pcmcia_socket *s) | |
458 | { | |
459 | struct pcmcia_device *p_dev; | |
460 | unsigned long flags; | |
461 | ||
462 | ds_dbg(2, "unbind_request(%d)\n", s->sock); | |
463 | ||
464 | s->device_count = 0; | |
465 | ||
466 | for (;;) { | |
467 | /* unregister all pcmcia_devices registered with this socket*/ | |
468 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
469 | if (list_empty(&s->devices_list)) { | |
470 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
471 | return; | |
472 | } | |
473 | p_dev = list_entry((&s->devices_list)->next, struct pcmcia_device, socket_device_list); | |
474 | list_del(&p_dev->socket_device_list); | |
475 | p_dev->state |= CLIENT_STALE; | |
476 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
477 | ||
478 | device_unregister(&p_dev->dev); | |
479 | } | |
480 | ||
481 | return; | |
482 | } /* unbind_request */ | |
483 | ||
1da177e4 LT |
484 | |
485 | /* | |
486 | * pcmcia_device_query -- determine information about a pcmcia device | |
487 | */ | |
488 | static int pcmcia_device_query(struct pcmcia_device *p_dev) | |
489 | { | |
490 | cistpl_manfid_t manf_id; | |
491 | cistpl_funcid_t func_id; | |
76fa82fb | 492 | cistpl_vers_1_t *vers1; |
1da177e4 LT |
493 | unsigned int i; |
494 | ||
76fa82fb IM |
495 | vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL); |
496 | if (!vers1) | |
497 | return -ENOMEM; | |
498 | ||
1da177e4 LT |
499 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
500 | CISTPL_MANFID, &manf_id)) { | |
501 | p_dev->manf_id = manf_id.manf; | |
502 | p_dev->card_id = manf_id.card; | |
503 | p_dev->has_manf_id = 1; | |
504 | p_dev->has_card_id = 1; | |
505 | } | |
506 | ||
507 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, | |
508 | CISTPL_FUNCID, &func_id)) { | |
509 | p_dev->func_id = func_id.func; | |
510 | p_dev->has_func_id = 1; | |
511 | } else { | |
512 | /* rule of thumb: cards with no FUNCID, but with | |
513 | * common memory device geometry information, are | |
514 | * probably memory cards (from pcmcia-cs) */ | |
76fa82fb IM |
515 | cistpl_device_geo_t *devgeo; |
516 | ||
517 | devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL); | |
518 | if (!devgeo) { | |
519 | kfree(vers1); | |
520 | return -ENOMEM; | |
521 | } | |
1da177e4 | 522 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
76fa82fb | 523 | CISTPL_DEVICE_GEO, devgeo)) { |
1da177e4 LT |
524 | ds_dbg(0, "mem device geometry probably means " |
525 | "FUNCID_MEMORY\n"); | |
526 | p_dev->func_id = CISTPL_FUNCID_MEMORY; | |
527 | p_dev->has_func_id = 1; | |
528 | } | |
76fa82fb | 529 | kfree(devgeo); |
1da177e4 LT |
530 | } |
531 | ||
532 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_VERS_1, | |
76fa82fb IM |
533 | vers1)) { |
534 | for (i=0; i < vers1->ns; i++) { | |
1da177e4 LT |
535 | char *tmp; |
536 | unsigned int length; | |
537 | ||
76fa82fb | 538 | tmp = vers1->str + vers1->ofs[i]; |
1da177e4 LT |
539 | |
540 | length = strlen(tmp) + 1; | |
6e3d4f25 | 541 | if ((length < 2) || (length > 255)) |
1da177e4 LT |
542 | continue; |
543 | ||
544 | p_dev->prod_id[i] = kmalloc(sizeof(char) * length, | |
545 | GFP_KERNEL); | |
546 | if (!p_dev->prod_id[i]) | |
547 | continue; | |
548 | ||
549 | p_dev->prod_id[i] = strncpy(p_dev->prod_id[i], | |
550 | tmp, length); | |
551 | } | |
552 | } | |
553 | ||
76fa82fb | 554 | kfree(vers1); |
1da177e4 LT |
555 | return 0; |
556 | } | |
557 | ||
558 | ||
559 | /* device_add_lock is needed to avoid double registration by cardmgr and kernel. | |
560 | * Serializes pcmcia_device_add; will most likely be removed in future. | |
561 | * | |
562 | * While it has the caveat that adding new PCMCIA devices inside(!) device_register() | |
563 | * won't work, this doesn't matter much at the moment: the driver core doesn't | |
564 | * support it either. | |
565 | */ | |
7fe908dd | 566 | static DEFINE_MUTEX(device_add_lock); |
1da177e4 | 567 | |
dc109497 | 568 | struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function) |
1da177e4 | 569 | { |
360b65b9 | 570 | struct pcmcia_device *p_dev, *tmp_dev; |
1da177e4 | 571 | unsigned long flags; |
bd65a685 | 572 | int bus_id_len; |
1da177e4 | 573 | |
dc109497 | 574 | s = pcmcia_get_socket(s); |
1da177e4 LT |
575 | if (!s) |
576 | return NULL; | |
577 | ||
7fe908dd | 578 | mutex_lock(&device_add_lock); |
1da177e4 | 579 | |
1ad275e3 DB |
580 | /* max of 2 devices per card */ |
581 | if (s->device_count == 2) | |
582 | goto err_put; | |
583 | ||
8084b372 | 584 | p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL); |
1da177e4 LT |
585 | if (!p_dev) |
586 | goto err_put; | |
1da177e4 | 587 | |
dc109497 | 588 | p_dev->socket = s; |
1da177e4 LT |
589 | p_dev->device_no = (s->device_count++); |
590 | p_dev->func = function; | |
360b65b9 DB |
591 | if (s->functions < function) |
592 | s->functions = function; | |
1da177e4 LT |
593 | |
594 | p_dev->dev.bus = &pcmcia_bus_type; | |
dc109497 | 595 | p_dev->dev.parent = s->dev.dev; |
1da177e4 | 596 | p_dev->dev.release = pcmcia_release_dev; |
bd65a685 BG |
597 | bus_id_len = sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no); |
598 | ||
599 | p_dev->devname = kmalloc(6 + bus_id_len + 1, GFP_KERNEL); | |
600 | if (!p_dev->devname) | |
601 | goto err_free; | |
602 | sprintf (p_dev->devname, "pcmcia%s", p_dev->dev.bus_id); | |
1da177e4 LT |
603 | |
604 | /* compat */ | |
e12a9a93 | 605 | p_dev->state = CLIENT_UNBOUND; |
1da177e4 | 606 | |
360b65b9 | 607 | |
1da177e4 | 608 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
360b65b9 DB |
609 | |
610 | /* | |
611 | * p_dev->function_config must be the same for all card functions. | |
612 | * Note that this is serialized by the device_add_lock, so that | |
613 | * only one such struct will be created. | |
614 | */ | |
615 | list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list) | |
616 | if (p_dev->func == tmp_dev->func) { | |
617 | p_dev->function_config = tmp_dev->function_config; | |
618 | kref_get(&p_dev->function_config->ref); | |
619 | } | |
620 | ||
621 | /* Add to the list in pcmcia_bus_socket */ | |
1da177e4 | 622 | list_add_tail(&p_dev->socket_device_list, &s->devices_list); |
360b65b9 | 623 | |
1da177e4 LT |
624 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
625 | ||
360b65b9 DB |
626 | if (!p_dev->function_config) { |
627 | p_dev->function_config = kzalloc(sizeof(struct config_t), | |
628 | GFP_KERNEL); | |
629 | if (!p_dev->function_config) | |
630 | goto err_unreg; | |
631 | kref_init(&p_dev->function_config->ref); | |
632 | } | |
633 | ||
807277cb DB |
634 | printk(KERN_NOTICE "pcmcia: registering new device %s\n", |
635 | p_dev->devname); | |
636 | ||
1ad275e3 DB |
637 | pcmcia_device_query(p_dev); |
638 | ||
360b65b9 DB |
639 | if (device_register(&p_dev->dev)) |
640 | goto err_unreg; | |
1da177e4 | 641 | |
7fe908dd | 642 | mutex_unlock(&device_add_lock); |
1da177e4 LT |
643 | |
644 | return p_dev; | |
645 | ||
360b65b9 DB |
646 | err_unreg: |
647 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
648 | list_del(&p_dev->socket_device_list); | |
649 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
650 | ||
1da177e4 | 651 | err_free: |
bd65a685 | 652 | kfree(p_dev->devname); |
1da177e4 LT |
653 | kfree(p_dev); |
654 | s->device_count--; | |
655 | err_put: | |
7fe908dd | 656 | mutex_unlock(&device_add_lock); |
dc109497 | 657 | pcmcia_put_socket(s); |
1da177e4 LT |
658 | |
659 | return NULL; | |
660 | } | |
661 | ||
662 | ||
663 | static int pcmcia_card_add(struct pcmcia_socket *s) | |
664 | { | |
665 | cisinfo_t cisinfo; | |
666 | cistpl_longlink_mfc_t mfc; | |
667 | unsigned int no_funcs, i; | |
668 | int ret = 0; | |
669 | ||
670 | if (!(s->resource_setup_done)) | |
671 | return -EAGAIN; /* try again, but later... */ | |
672 | ||
de75914e DB |
673 | if (pcmcia_validate_mem(s)) |
674 | return -EAGAIN; /* try again, but later... */ | |
675 | ||
1da177e4 LT |
676 | ret = pccard_validate_cis(s, BIND_FN_ALL, &cisinfo); |
677 | if (ret || !cisinfo.Chains) { | |
678 | ds_dbg(0, "invalid CIS or invalid resources\n"); | |
679 | return -ENODEV; | |
680 | } | |
681 | ||
682 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
683 | no_funcs = mfc.nfn; | |
684 | else | |
685 | no_funcs = 1; | |
686 | ||
1da177e4 | 687 | for (i=0; i < no_funcs; i++) |
dc109497 | 688 | pcmcia_device_add(s, i); |
1da177e4 LT |
689 | |
690 | return (ret); | |
691 | } | |
692 | ||
693 | ||
1ad275e3 DB |
694 | static void pcmcia_delayed_add_pseudo_device(void *data) |
695 | { | |
dc109497 | 696 | struct pcmcia_socket *s = data; |
1ad275e3 | 697 | pcmcia_device_add(s, 0); |
b5e43913 | 698 | s->pcmcia_state.device_add_pending = 0; |
1ad275e3 DB |
699 | } |
700 | ||
e2f0b534 | 701 | static int pcmcia_requery(struct device *dev, void * _data) |
ff1fa9ef | 702 | { |
e2f0b534 DB |
703 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
704 | if (!p_dev->dev.driver) | |
705 | pcmcia_device_query(p_dev); | |
706 | ||
707 | return 0; | |
708 | } | |
709 | ||
710 | static void pcmcia_bus_rescan(struct pcmcia_socket *skt) | |
711 | { | |
712 | int no_devices=0; | |
713 | unsigned long flags; | |
714 | ||
7fe908dd | 715 | /* must be called with skt_mutex held */ |
e2f0b534 | 716 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
dc109497 | 717 | if (list_empty(&skt->devices_list)) |
e2f0b534 DB |
718 | no_devices=1; |
719 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
720 | ||
721 | /* if no devices were added for this socket yet because of | |
722 | * missing resource information or other trouble, we need to | |
723 | * do this now. */ | |
724 | if (no_devices) { | |
725 | int ret = pcmcia_card_add(skt); | |
726 | if (ret) | |
727 | return; | |
728 | } | |
729 | ||
730 | /* some device information might have changed because of a CIS | |
731 | * update or because we can finally read it correctly... so | |
732 | * determine it again, overwriting old values if necessary. */ | |
733 | bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery); | |
734 | ||
735 | /* we re-scan all devices, not just the ones connected to this | |
736 | * socket. This does not matter, though. */ | |
a5b55778 | 737 | bus_rescan_devices(&pcmcia_bus_type); |
ff1fa9ef | 738 | } |
1ad275e3 DB |
739 | |
740 | static inline int pcmcia_devmatch(struct pcmcia_device *dev, | |
741 | struct pcmcia_device_id *did) | |
742 | { | |
743 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) { | |
744 | if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id)) | |
745 | return 0; | |
746 | } | |
747 | ||
748 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) { | |
749 | if ((!dev->has_card_id) || (dev->card_id != did->card_id)) | |
750 | return 0; | |
751 | } | |
752 | ||
753 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) { | |
754 | if (dev->func != did->function) | |
755 | return 0; | |
756 | } | |
757 | ||
758 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) { | |
759 | if (!dev->prod_id[0]) | |
760 | return 0; | |
761 | if (strcmp(did->prod_id[0], dev->prod_id[0])) | |
762 | return 0; | |
763 | } | |
764 | ||
765 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) { | |
766 | if (!dev->prod_id[1]) | |
767 | return 0; | |
768 | if (strcmp(did->prod_id[1], dev->prod_id[1])) | |
769 | return 0; | |
770 | } | |
771 | ||
772 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) { | |
773 | if (!dev->prod_id[2]) | |
774 | return 0; | |
775 | if (strcmp(did->prod_id[2], dev->prod_id[2])) | |
776 | return 0; | |
777 | } | |
778 | ||
779 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) { | |
780 | if (!dev->prod_id[3]) | |
781 | return 0; | |
782 | if (strcmp(did->prod_id[3], dev->prod_id[3])) | |
783 | return 0; | |
784 | } | |
785 | ||
786 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { | |
1ad275e3 DB |
787 | if (dev->device_no != did->device_no) |
788 | return 0; | |
789 | } | |
790 | ||
791 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { | |
792 | if ((!dev->has_func_id) || (dev->func_id != did->func_id)) | |
793 | return 0; | |
794 | ||
795 | /* if this is a pseudo-multi-function device, | |
796 | * we need explicit matches */ | |
797 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) | |
798 | return 0; | |
799 | if (dev->device_no) | |
800 | return 0; | |
801 | ||
802 | /* also, FUNC_ID matching needs to be activated by userspace | |
803 | * after it has re-checked that there is no possible module | |
804 | * with a prod_id/manf_id/card_id match. | |
805 | */ | |
806 | if (!dev->allow_func_id_match) | |
807 | return 0; | |
808 | } | |
809 | ||
ea7b3882 | 810 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { |
daa9517d DB |
811 | if (!dev->socket->fake_cis) |
812 | pcmcia_load_firmware(dev, did->cisfile); | |
813 | ||
814 | if (!dev->socket->fake_cis) | |
ea7b3882 | 815 | return 0; |
ea7b3882 DB |
816 | } |
817 | ||
f602ff7e DB |
818 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { |
819 | int i; | |
820 | for (i=0; i<4; i++) | |
821 | if (dev->prod_id[i]) | |
822 | return 0; | |
823 | if (dev->has_manf_id || dev->has_card_id || dev->has_func_id) | |
824 | return 0; | |
825 | } | |
826 | ||
1ad275e3 DB |
827 | dev->dev.driver_data = (void *) did; |
828 | ||
829 | return 1; | |
830 | } | |
831 | ||
832 | ||
1da177e4 LT |
833 | static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) { |
834 | struct pcmcia_device * p_dev = to_pcmcia_dev(dev); | |
835 | struct pcmcia_driver * p_drv = to_pcmcia_drv(drv); | |
1ad275e3 | 836 | struct pcmcia_device_id *did = p_drv->id_table; |
1da177e4 LT |
837 | |
838 | /* matching by cardmgr */ | |
839 | if (p_dev->cardmgr == p_drv) | |
840 | return 1; | |
841 | ||
1ad275e3 DB |
842 | while (did && did->match_flags) { |
843 | if (pcmcia_devmatch(p_dev, did)) | |
844 | return 1; | |
845 | did++; | |
846 | } | |
847 | ||
1da177e4 LT |
848 | return 0; |
849 | } | |
850 | ||
840c2ac5 DB |
851 | #ifdef CONFIG_HOTPLUG |
852 | ||
312c004d KS |
853 | static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, |
854 | char *buffer, int buffer_size) | |
840c2ac5 DB |
855 | { |
856 | struct pcmcia_device *p_dev; | |
857 | int i, length = 0; | |
858 | u32 hash[4] = { 0, 0, 0, 0}; | |
859 | ||
860 | if (!dev) | |
861 | return -ENODEV; | |
862 | ||
863 | p_dev = to_pcmcia_dev(dev); | |
864 | ||
865 | /* calculate hashes */ | |
866 | for (i=0; i<4; i++) { | |
867 | if (!p_dev->prod_id[i]) | |
868 | continue; | |
869 | hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); | |
870 | } | |
871 | ||
872 | i = 0; | |
873 | ||
312c004d KS |
874 | if (add_uevent_var(envp, num_envp, &i, |
875 | buffer, buffer_size, &length, | |
876 | "SOCKET_NO=%u", | |
877 | p_dev->socket->sock)) | |
840c2ac5 DB |
878 | return -ENOMEM; |
879 | ||
312c004d KS |
880 | if (add_uevent_var(envp, num_envp, &i, |
881 | buffer, buffer_size, &length, | |
882 | "DEVICE_NO=%02X", | |
883 | p_dev->device_no)) | |
840c2ac5 DB |
884 | return -ENOMEM; |
885 | ||
312c004d KS |
886 | if (add_uevent_var(envp, num_envp, &i, |
887 | buffer, buffer_size, &length, | |
888 | "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
889 | "pa%08Xpb%08Xpc%08Xpd%08X", | |
890 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
891 | p_dev->has_card_id ? p_dev->card_id : 0, | |
892 | p_dev->has_func_id ? p_dev->func_id : 0, | |
893 | p_dev->func, | |
894 | p_dev->device_no, | |
895 | hash[0], | |
896 | hash[1], | |
897 | hash[2], | |
898 | hash[3])) | |
840c2ac5 DB |
899 | return -ENOMEM; |
900 | ||
901 | envp[i] = NULL; | |
902 | ||
903 | return 0; | |
904 | } | |
905 | ||
906 | #else | |
907 | ||
312c004d | 908 | static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, |
840c2ac5 DB |
909 | char *buffer, int buffer_size) |
910 | { | |
911 | return -ENODEV; | |
912 | } | |
913 | ||
914 | #endif | |
915 | ||
1da177e4 LT |
916 | /************************ per-device sysfs output ***************************/ |
917 | ||
918 | #define pcmcia_device_attr(field, test, format) \ | |
e404e274 | 919 | static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
920 | { \ |
921 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
922 | return p_dev->test ? sprintf (buf, format, p_dev->field) : -ENODEV; \ | |
923 | } | |
924 | ||
925 | #define pcmcia_device_stringattr(name, field) \ | |
e404e274 | 926 | static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
927 | { \ |
928 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
929 | return p_dev->field ? sprintf (buf, "%s\n", p_dev->field) : -ENODEV; \ | |
930 | } | |
931 | ||
932 | pcmcia_device_attr(func, socket, "0x%02x\n"); | |
933 | pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); | |
934 | pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); | |
935 | pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); | |
936 | pcmcia_device_stringattr(prod_id1, prod_id[0]); | |
937 | pcmcia_device_stringattr(prod_id2, prod_id[1]); | |
938 | pcmcia_device_stringattr(prod_id3, prod_id[2]); | |
939 | pcmcia_device_stringattr(prod_id4, prod_id[3]); | |
940 | ||
db1019ca DB |
941 | |
942 | static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf) | |
943 | { | |
944 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
945 | ||
946 | if (p_dev->dev.power.power_state.event != PM_EVENT_ON) | |
947 | return sprintf(buf, "off\n"); | |
948 | else | |
949 | return sprintf(buf, "on\n"); | |
950 | } | |
951 | ||
952 | static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr, | |
953 | const char *buf, size_t count) | |
954 | { | |
955 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
956 | int ret = 0; | |
957 | ||
958 | if (!count) | |
959 | return -EINVAL; | |
960 | ||
961 | if ((p_dev->dev.power.power_state.event == PM_EVENT_ON) && | |
962 | (!strncmp(buf, "off", 3))) | |
963 | ret = dpm_runtime_suspend(dev, PMSG_SUSPEND); | |
964 | else if ((p_dev->dev.power.power_state.event != PM_EVENT_ON) && | |
965 | (!strncmp(buf, "on", 2))) | |
966 | dpm_runtime_resume(dev); | |
967 | ||
968 | return ret ? ret : count; | |
969 | } | |
970 | ||
971 | ||
3704511b | 972 | static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) |
3248ff43 DB |
973 | { |
974 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
975 | int i; | |
976 | u32 hash[4] = { 0, 0, 0, 0}; | |
977 | ||
978 | /* calculate hashes */ | |
979 | for (i=0; i<4; i++) { | |
980 | if (!p_dev->prod_id[i]) | |
981 | continue; | |
982 | hash[i] = crc32(0,p_dev->prod_id[i],strlen(p_dev->prod_id[i])); | |
983 | } | |
984 | return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
985 | "pa%08Xpb%08Xpc%08Xpd%08X\n", | |
986 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
987 | p_dev->has_card_id ? p_dev->card_id : 0, | |
988 | p_dev->has_func_id ? p_dev->func_id : 0, | |
989 | p_dev->func, p_dev->device_no, | |
990 | hash[0], hash[1], hash[2], hash[3]); | |
991 | } | |
a5b55778 | 992 | |
3248ff43 DB |
993 | static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, |
994 | struct device_attribute *attr, const char *buf, size_t count) | |
a5b55778 DB |
995 | { |
996 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
db1019ca DB |
997 | |
998 | if (!count) | |
999 | return -EINVAL; | |
a5b55778 | 1000 | |
7fe908dd | 1001 | mutex_lock(&p_dev->socket->skt_mutex); |
a5b55778 | 1002 | p_dev->allow_func_id_match = 1; |
7fe908dd | 1003 | mutex_unlock(&p_dev->socket->skt_mutex); |
a5b55778 DB |
1004 | |
1005 | bus_rescan_devices(&pcmcia_bus_type); | |
1006 | ||
1007 | return count; | |
1008 | } | |
1009 | ||
1da177e4 LT |
1010 | static struct device_attribute pcmcia_dev_attrs[] = { |
1011 | __ATTR(function, 0444, func_show, NULL), | |
db1019ca | 1012 | __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state), |
1da177e4 LT |
1013 | __ATTR_RO(func_id), |
1014 | __ATTR_RO(manf_id), | |
1015 | __ATTR_RO(card_id), | |
1016 | __ATTR_RO(prod_id1), | |
1017 | __ATTR_RO(prod_id2), | |
1018 | __ATTR_RO(prod_id3), | |
1019 | __ATTR_RO(prod_id4), | |
3248ff43 | 1020 | __ATTR_RO(modalias), |
a5b55778 | 1021 | __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), |
1da177e4 LT |
1022 | __ATTR_NULL, |
1023 | }; | |
1024 | ||
8e9e793d DB |
1025 | /* PM support, also needed for reset */ |
1026 | ||
1027 | static int pcmcia_dev_suspend(struct device * dev, pm_message_t state) | |
1028 | { | |
1029 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1030 | struct pcmcia_driver *p_drv = NULL; | |
1031 | ||
1032 | if (dev->driver) | |
1033 | p_drv = to_pcmcia_drv(dev->driver); | |
1034 | ||
1035 | if (p_drv && p_drv->suspend) | |
1036 | return p_drv->suspend(p_dev); | |
1037 | ||
1038 | return 0; | |
1039 | } | |
1040 | ||
1041 | ||
1042 | static int pcmcia_dev_resume(struct device * dev) | |
1043 | { | |
1044 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1045 | struct pcmcia_driver *p_drv = NULL; | |
1046 | ||
1047 | if (dev->driver) | |
1048 | p_drv = to_pcmcia_drv(dev->driver); | |
1049 | ||
1050 | if (p_drv && p_drv->resume) | |
1051 | return p_drv->resume(p_dev); | |
1052 | ||
1053 | return 0; | |
1054 | } | |
1055 | ||
1056 | ||
1057 | static int pcmcia_bus_suspend_callback(struct device *dev, void * _data) | |
1058 | { | |
1059 | struct pcmcia_socket *skt = _data; | |
1060 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1061 | ||
1062 | if (p_dev->socket != skt) | |
1063 | return 0; | |
1064 | ||
1065 | return dpm_runtime_suspend(dev, PMSG_SUSPEND); | |
1066 | } | |
1067 | ||
1068 | static int pcmcia_bus_resume_callback(struct device *dev, void * _data) | |
1069 | { | |
1070 | struct pcmcia_socket *skt = _data; | |
1071 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1072 | ||
1073 | if (p_dev->socket != skt) | |
1074 | return 0; | |
1075 | ||
1076 | dpm_runtime_resume(dev); | |
1077 | ||
1078 | return 0; | |
1079 | } | |
1080 | ||
1081 | static int pcmcia_bus_resume(struct pcmcia_socket *skt) | |
1082 | { | |
1083 | bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback); | |
1084 | return 0; | |
1085 | } | |
1086 | ||
1087 | static int pcmcia_bus_suspend(struct pcmcia_socket *skt) | |
1088 | { | |
1089 | if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt, | |
1090 | pcmcia_bus_suspend_callback)) { | |
1091 | pcmcia_bus_resume(skt); | |
1092 | return -EIO; | |
1093 | } | |
1094 | return 0; | |
1095 | } | |
1096 | ||
1da177e4 | 1097 | |
1da177e4 LT |
1098 | /*====================================================================== |
1099 | ||
1100 | The card status event handler. | |
1101 | ||
1102 | ======================================================================*/ | |
1103 | ||
1da177e4 LT |
1104 | /* Normally, the event is passed to individual drivers after |
1105 | * informing userspace. Only for CS_EVENT_CARD_REMOVAL this | |
1106 | * is inversed to maintain historic compatibility. | |
1107 | */ | |
1108 | ||
1109 | static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) | |
1110 | { | |
dc109497 | 1111 | struct pcmcia_socket *s = pcmcia_get_socket(skt); |
1da177e4 LT |
1112 | |
1113 | ds_dbg(1, "ds_event(0x%06x, %d, 0x%p)\n", | |
dc109497 | 1114 | event, priority, skt); |
1da177e4 | 1115 | |
f8cfa618 | 1116 | switch (event) { |
1da177e4 | 1117 | case CS_EVENT_CARD_REMOVAL: |
b5e43913 | 1118 | s->pcmcia_state.present = 0; |
cc3b4866 | 1119 | pcmcia_card_remove(skt); |
dc109497 | 1120 | handle_event(skt, event); |
1da177e4 | 1121 | break; |
f8cfa618 | 1122 | |
1da177e4 | 1123 | case CS_EVENT_CARD_INSERTION: |
b5e43913 | 1124 | s->pcmcia_state.present = 1; |
1da177e4 | 1125 | pcmcia_card_add(skt); |
dc109497 | 1126 | handle_event(skt, event); |
1da177e4 LT |
1127 | break; |
1128 | ||
1129 | case CS_EVENT_EJECTION_REQUEST: | |
1da177e4 LT |
1130 | break; |
1131 | ||
8e9e793d DB |
1132 | case CS_EVENT_PM_SUSPEND: |
1133 | case CS_EVENT_PM_RESUME: | |
1134 | case CS_EVENT_RESET_PHYSICAL: | |
1135 | case CS_EVENT_CARD_RESET: | |
1da177e4 | 1136 | default: |
dc109497 | 1137 | handle_event(skt, event); |
1da177e4 LT |
1138 | break; |
1139 | } | |
1140 | ||
dc109497 DB |
1141 | pcmcia_put_socket(s); |
1142 | ||
1da177e4 LT |
1143 | return 0; |
1144 | } /* ds_event */ | |
1145 | ||
1146 | ||
90c6cdd1 DB |
1147 | static struct pcmcia_callback pcmcia_bus_callback = { |
1148 | .owner = THIS_MODULE, | |
1149 | .event = ds_event, | |
1150 | .requery = pcmcia_bus_rescan, | |
8e9e793d DB |
1151 | .suspend = pcmcia_bus_suspend, |
1152 | .resume = pcmcia_bus_resume, | |
90c6cdd1 DB |
1153 | }; |
1154 | ||
d8539d81 DT |
1155 | static int __devinit pcmcia_bus_add_socket(struct class_device *class_dev, |
1156 | struct class_interface *class_intf) | |
1da177e4 LT |
1157 | { |
1158 | struct pcmcia_socket *socket = class_get_devdata(class_dev); | |
1da177e4 LT |
1159 | int ret; |
1160 | ||
dc109497 DB |
1161 | socket = pcmcia_get_socket(socket); |
1162 | if (!socket) { | |
1da177e4 | 1163 | printk(KERN_ERR "PCMCIA obtaining reference to socket %p failed\n", socket); |
1da177e4 LT |
1164 | return -ENODEV; |
1165 | } | |
1166 | ||
1da177e4 LT |
1167 | /* |
1168 | * Ugly. But we want to wait for the socket threads to have started up. | |
1169 | * We really should let the drivers themselves drive some of this.. | |
1170 | */ | |
1171 | msleep(250); | |
1172 | ||
e7a480d2 | 1173 | #ifdef CONFIG_PCMCIA_IOCTL |
dc109497 | 1174 | init_waitqueue_head(&socket->queue); |
e7a480d2 | 1175 | #endif |
dc109497 DB |
1176 | INIT_LIST_HEAD(&socket->devices_list); |
1177 | INIT_WORK(&socket->device_add, pcmcia_delayed_add_pseudo_device, socket); | |
1178 | memset(&socket->pcmcia_state, 0, sizeof(u8)); | |
1179 | socket->device_count = 0; | |
1da177e4 | 1180 | |
90c6cdd1 | 1181 | ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback); |
1da177e4 LT |
1182 | if (ret) { |
1183 | printk(KERN_ERR "PCMCIA registration PCCard core failed for socket %p\n", socket); | |
dc109497 | 1184 | pcmcia_put_socket(socket); |
1da177e4 LT |
1185 | return (ret); |
1186 | } | |
1187 | ||
1188 | return 0; | |
1189 | } | |
1190 | ||
d8539d81 DT |
1191 | static void pcmcia_bus_remove_socket(struct class_device *class_dev, |
1192 | struct class_interface *class_intf) | |
1da177e4 LT |
1193 | { |
1194 | struct pcmcia_socket *socket = class_get_devdata(class_dev); | |
1195 | ||
dc109497 | 1196 | if (!socket) |
1da177e4 LT |
1197 | return; |
1198 | ||
dc109497 | 1199 | socket->pcmcia_state.dead = 1; |
1da177e4 LT |
1200 | pccard_register_pcmcia(socket, NULL); |
1201 | ||
dc109497 | 1202 | pcmcia_put_socket(socket); |
1da177e4 LT |
1203 | |
1204 | return; | |
1205 | } | |
1206 | ||
1207 | ||
1208 | /* the pcmcia_bus_interface is used to handle pcmcia socket devices */ | |
1209 | static struct class_interface pcmcia_bus_interface = { | |
1210 | .class = &pcmcia_socket_class, | |
1211 | .add = &pcmcia_bus_add_socket, | |
1212 | .remove = &pcmcia_bus_remove_socket, | |
1213 | }; | |
1214 | ||
1215 | ||
e7a480d2 | 1216 | struct bus_type pcmcia_bus_type = { |
1da177e4 | 1217 | .name = "pcmcia", |
312c004d | 1218 | .uevent = pcmcia_bus_uevent, |
1da177e4 LT |
1219 | .match = pcmcia_bus_match, |
1220 | .dev_attrs = pcmcia_dev_attrs, | |
1d0baa3a RK |
1221 | .probe = pcmcia_device_probe, |
1222 | .remove = pcmcia_device_remove, | |
8e9e793d DB |
1223 | .suspend = pcmcia_dev_suspend, |
1224 | .resume = pcmcia_dev_resume, | |
1da177e4 | 1225 | }; |
1da177e4 LT |
1226 | |
1227 | ||
1228 | static int __init init_pcmcia_bus(void) | |
1229 | { | |
1da177e4 LT |
1230 | spin_lock_init(&pcmcia_dev_list_lock); |
1231 | ||
1232 | bus_register(&pcmcia_bus_type); | |
1233 | class_interface_register(&pcmcia_bus_interface); | |
1234 | ||
e7a480d2 | 1235 | pcmcia_setup_ioctl(); |
1da177e4 LT |
1236 | |
1237 | return 0; | |
1238 | } | |
1239 | fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that | |
1240 | * pcmcia_socket_class is already registered */ | |
1241 | ||
1242 | ||
1243 | static void __exit exit_pcmcia_bus(void) | |
1244 | { | |
e7a480d2 | 1245 | pcmcia_cleanup_ioctl(); |
1da177e4 | 1246 | |
e7a480d2 | 1247 | class_interface_unregister(&pcmcia_bus_interface); |
1da177e4 LT |
1248 | |
1249 | bus_unregister(&pcmcia_bus_type); | |
1250 | } | |
1251 | module_exit(exit_pcmcia_bus); | |
1252 | ||
1253 | ||
1da177e4 | 1254 | MODULE_ALIAS("ds"); |