Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * ds.c -- 16-bit PCMCIA core support | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * The initial developer of the original code is David A. Hinds | |
9 | * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds | |
10 | * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. | |
11 | * | |
12 | * (C) 1999 David A. Hinds | |
8661bb5b | 13 | * (C) 2003 - 2006 Dominik Brodowski |
1da177e4 LT |
14 | */ |
15 | ||
3b659fb8 | 16 | #include <linux/kernel.h> |
1da177e4 | 17 | #include <linux/module.h> |
1da177e4 | 18 | #include <linux/init.h> |
1da177e4 | 19 | #include <linux/errno.h> |
1da177e4 LT |
20 | #include <linux/list.h> |
21 | #include <linux/delay.h> | |
1da177e4 | 22 | #include <linux/workqueue.h> |
840c2ac5 | 23 | #include <linux/crc32.h> |
daa9517d | 24 | #include <linux/firmware.h> |
360b65b9 | 25 | #include <linux/kref.h> |
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 | 393 | ret = p_drv->probe(p_dev); |
82d56e6d DB |
394 | if (ret) |
395 | goto put_module; | |
396 | ||
397 | /* handle pseudo multifunction devices: | |
398 | * there are at most two pseudo multifunction devices. | |
399 | * if we're matching against the first, schedule a | |
400 | * call which will then check whether there are two | |
401 | * pseudo devices, and if not, add the second one. | |
402 | */ | |
403 | did = (struct pcmcia_device_id *) p_dev->dev.driver_data; | |
4ceadbf5 | 404 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
82d56e6d DB |
405 | (p_dev->socket->device_count == 1) && (p_dev->device_no == 0)) |
406 | pcmcia_add_pseudo_device(p_dev->socket); | |
f8cfa618 DB |
407 | |
408 | put_module: | |
1da177e4 LT |
409 | if (ret) |
410 | module_put(p_drv->owner); | |
411 | put_dev: | |
f8cfa618 | 412 | if (ret) |
1da177e4 LT |
413 | put_device(dev); |
414 | return (ret); | |
415 | } | |
416 | ||
417 | ||
d6ff5a85 DB |
418 | /* |
419 | * Removes a PCMCIA card from the device tree and socket list. | |
420 | */ | |
421 | static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *leftover) | |
422 | { | |
423 | struct pcmcia_device *p_dev; | |
424 | struct pcmcia_device *tmp; | |
425 | unsigned long flags; | |
426 | ||
427 | ds_dbg(2, "unbind_request(%d)\n", s->sock); | |
428 | ||
429 | ||
430 | if (!leftover) | |
431 | s->device_count = 0; | |
432 | else | |
433 | s->device_count = 1; | |
434 | ||
435 | /* unregister all pcmcia_devices registered with this socket, except leftover */ | |
436 | list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) { | |
437 | if (p_dev == leftover) | |
438 | continue; | |
439 | ||
440 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
441 | list_del(&p_dev->socket_device_list); | |
442 | p_dev->_removed=1; | |
443 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
444 | ||
445 | device_unregister(&p_dev->dev); | |
446 | } | |
447 | ||
448 | return; | |
449 | } | |
450 | ||
451 | ||
1da177e4 LT |
452 | static int pcmcia_device_remove(struct device * dev) |
453 | { | |
454 | struct pcmcia_device *p_dev; | |
455 | struct pcmcia_driver *p_drv; | |
d6ff5a85 | 456 | struct pcmcia_device_id *did; |
cc3b4866 | 457 | int i; |
1da177e4 | 458 | |
1da177e4 LT |
459 | p_dev = to_pcmcia_dev(dev); |
460 | p_drv = to_pcmcia_drv(dev->driver); | |
d6ff5a85 DB |
461 | |
462 | /* If we're removing the primary module driving a | |
463 | * pseudo multi-function card, we need to unbind | |
464 | * all devices | |
465 | */ | |
466 | did = (struct pcmcia_device_id *) p_dev->dev.driver_data; | |
467 | if ((did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && | |
468 | (p_dev->socket->device_count != 0) && | |
469 | (p_dev->device_no == 0)) | |
470 | pcmcia_card_remove(p_dev->socket, p_dev); | |
471 | ||
472 | /* detach the "instance" */ | |
f3990715 DB |
473 | if (!p_drv) |
474 | return 0; | |
1da177e4 | 475 | |
f3990715 | 476 | if (p_drv->remove) |
cc3b4866 DB |
477 | p_drv->remove(p_dev); |
478 | ||
f3990715 | 479 | /* check for proper unloading */ |
e2d40963 | 480 | if (p_dev->_irq || p_dev->_io || p_dev->_locked) |
f3990715 DB |
481 | printk(KERN_INFO "pcmcia: driver %s did not release config properly\n", |
482 | p_drv->drv.name); | |
cc3b4866 | 483 | |
f3990715 | 484 | for (i = 0; i < MAX_WIN; i++) |
e2d40963 | 485 | if (p_dev->_win & CLIENT_WIN_REQ(i)) |
f3990715 DB |
486 | printk(KERN_INFO "pcmcia: driver %s did not release windows properly\n", |
487 | p_drv->drv.name); | |
cc3b4866 | 488 | |
f3990715 DB |
489 | /* references from pcmcia_probe_device */ |
490 | pcmcia_put_dev(p_dev); | |
491 | module_put(p_drv->owner); | |
1da177e4 LT |
492 | |
493 | return 0; | |
494 | } | |
495 | ||
496 | ||
1da177e4 LT |
497 | /* |
498 | * pcmcia_device_query -- determine information about a pcmcia device | |
499 | */ | |
500 | static int pcmcia_device_query(struct pcmcia_device *p_dev) | |
501 | { | |
502 | cistpl_manfid_t manf_id; | |
503 | cistpl_funcid_t func_id; | |
76fa82fb | 504 | cistpl_vers_1_t *vers1; |
1da177e4 LT |
505 | unsigned int i; |
506 | ||
76fa82fb IM |
507 | vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL); |
508 | if (!vers1) | |
509 | return -ENOMEM; | |
510 | ||
1da177e4 LT |
511 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
512 | CISTPL_MANFID, &manf_id)) { | |
513 | p_dev->manf_id = manf_id.manf; | |
514 | p_dev->card_id = manf_id.card; | |
515 | p_dev->has_manf_id = 1; | |
516 | p_dev->has_card_id = 1; | |
517 | } | |
518 | ||
519 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, | |
520 | CISTPL_FUNCID, &func_id)) { | |
521 | p_dev->func_id = func_id.func; | |
522 | p_dev->has_func_id = 1; | |
523 | } else { | |
524 | /* rule of thumb: cards with no FUNCID, but with | |
525 | * common memory device geometry information, are | |
526 | * probably memory cards (from pcmcia-cs) */ | |
76fa82fb IM |
527 | cistpl_device_geo_t *devgeo; |
528 | ||
529 | devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL); | |
530 | if (!devgeo) { | |
531 | kfree(vers1); | |
532 | return -ENOMEM; | |
533 | } | |
1da177e4 | 534 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
76fa82fb | 535 | CISTPL_DEVICE_GEO, devgeo)) { |
1da177e4 LT |
536 | ds_dbg(0, "mem device geometry probably means " |
537 | "FUNCID_MEMORY\n"); | |
538 | p_dev->func_id = CISTPL_FUNCID_MEMORY; | |
539 | p_dev->has_func_id = 1; | |
540 | } | |
76fa82fb | 541 | kfree(devgeo); |
1da177e4 LT |
542 | } |
543 | ||
544 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_VERS_1, | |
76fa82fb IM |
545 | vers1)) { |
546 | for (i=0; i < vers1->ns; i++) { | |
1da177e4 LT |
547 | char *tmp; |
548 | unsigned int length; | |
549 | ||
76fa82fb | 550 | tmp = vers1->str + vers1->ofs[i]; |
1da177e4 LT |
551 | |
552 | length = strlen(tmp) + 1; | |
6e3d4f25 | 553 | if ((length < 2) || (length > 255)) |
1da177e4 LT |
554 | continue; |
555 | ||
556 | p_dev->prod_id[i] = kmalloc(sizeof(char) * length, | |
557 | GFP_KERNEL); | |
558 | if (!p_dev->prod_id[i]) | |
559 | continue; | |
560 | ||
561 | p_dev->prod_id[i] = strncpy(p_dev->prod_id[i], | |
562 | tmp, length); | |
563 | } | |
564 | } | |
565 | ||
76fa82fb | 566 | kfree(vers1); |
1da177e4 LT |
567 | return 0; |
568 | } | |
569 | ||
570 | ||
571 | /* device_add_lock is needed to avoid double registration by cardmgr and kernel. | |
572 | * Serializes pcmcia_device_add; will most likely be removed in future. | |
573 | * | |
574 | * While it has the caveat that adding new PCMCIA devices inside(!) device_register() | |
575 | * won't work, this doesn't matter much at the moment: the driver core doesn't | |
576 | * support it either. | |
577 | */ | |
7fe908dd | 578 | static DEFINE_MUTEX(device_add_lock); |
1da177e4 | 579 | |
dc109497 | 580 | struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function) |
1da177e4 | 581 | { |
360b65b9 | 582 | struct pcmcia_device *p_dev, *tmp_dev; |
1da177e4 | 583 | unsigned long flags; |
bd65a685 | 584 | int bus_id_len; |
1da177e4 | 585 | |
dc109497 | 586 | s = pcmcia_get_socket(s); |
1da177e4 LT |
587 | if (!s) |
588 | return NULL; | |
589 | ||
7fe908dd | 590 | mutex_lock(&device_add_lock); |
1da177e4 | 591 | |
1ad275e3 DB |
592 | /* max of 2 devices per card */ |
593 | if (s->device_count == 2) | |
594 | goto err_put; | |
595 | ||
8084b372 | 596 | p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL); |
1da177e4 LT |
597 | if (!p_dev) |
598 | goto err_put; | |
1da177e4 | 599 | |
dc109497 | 600 | p_dev->socket = s; |
1da177e4 LT |
601 | p_dev->device_no = (s->device_count++); |
602 | p_dev->func = function; | |
552dc85d DB |
603 | if (s->functions <= function) |
604 | s->functions = function + 1; | |
1da177e4 LT |
605 | |
606 | p_dev->dev.bus = &pcmcia_bus_type; | |
dc109497 | 607 | p_dev->dev.parent = s->dev.dev; |
1da177e4 | 608 | p_dev->dev.release = pcmcia_release_dev; |
bd65a685 BG |
609 | bus_id_len = sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no); |
610 | ||
611 | p_dev->devname = kmalloc(6 + bus_id_len + 1, GFP_KERNEL); | |
612 | if (!p_dev->devname) | |
613 | goto err_free; | |
614 | sprintf (p_dev->devname, "pcmcia%s", p_dev->dev.bus_id); | |
1da177e4 LT |
615 | |
616 | /* compat */ | |
1da177e4 | 617 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
360b65b9 DB |
618 | |
619 | /* | |
620 | * p_dev->function_config must be the same for all card functions. | |
621 | * Note that this is serialized by the device_add_lock, so that | |
622 | * only one such struct will be created. | |
623 | */ | |
624 | list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list) | |
625 | if (p_dev->func == tmp_dev->func) { | |
626 | p_dev->function_config = tmp_dev->function_config; | |
627 | kref_get(&p_dev->function_config->ref); | |
628 | } | |
629 | ||
630 | /* Add to the list in pcmcia_bus_socket */ | |
1da177e4 | 631 | list_add_tail(&p_dev->socket_device_list, &s->devices_list); |
360b65b9 | 632 | |
1da177e4 LT |
633 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
634 | ||
360b65b9 DB |
635 | if (!p_dev->function_config) { |
636 | p_dev->function_config = kzalloc(sizeof(struct config_t), | |
637 | GFP_KERNEL); | |
638 | if (!p_dev->function_config) | |
639 | goto err_unreg; | |
640 | kref_init(&p_dev->function_config->ref); | |
641 | } | |
642 | ||
807277cb DB |
643 | printk(KERN_NOTICE "pcmcia: registering new device %s\n", |
644 | p_dev->devname); | |
645 | ||
1ad275e3 DB |
646 | pcmcia_device_query(p_dev); |
647 | ||
360b65b9 DB |
648 | if (device_register(&p_dev->dev)) |
649 | goto err_unreg; | |
1da177e4 | 650 | |
7fe908dd | 651 | mutex_unlock(&device_add_lock); |
1da177e4 LT |
652 | |
653 | return p_dev; | |
654 | ||
360b65b9 DB |
655 | err_unreg: |
656 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
657 | list_del(&p_dev->socket_device_list); | |
658 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
659 | ||
1da177e4 | 660 | err_free: |
bd65a685 | 661 | kfree(p_dev->devname); |
1da177e4 LT |
662 | kfree(p_dev); |
663 | s->device_count--; | |
664 | err_put: | |
7fe908dd | 665 | mutex_unlock(&device_add_lock); |
dc109497 | 666 | pcmcia_put_socket(s); |
1da177e4 LT |
667 | |
668 | return NULL; | |
669 | } | |
670 | ||
671 | ||
672 | static int pcmcia_card_add(struct pcmcia_socket *s) | |
673 | { | |
674 | cisinfo_t cisinfo; | |
675 | cistpl_longlink_mfc_t mfc; | |
676 | unsigned int no_funcs, i; | |
677 | int ret = 0; | |
678 | ||
679 | if (!(s->resource_setup_done)) | |
680 | return -EAGAIN; /* try again, but later... */ | |
681 | ||
de75914e DB |
682 | if (pcmcia_validate_mem(s)) |
683 | return -EAGAIN; /* try again, but later... */ | |
684 | ||
1da177e4 LT |
685 | ret = pccard_validate_cis(s, BIND_FN_ALL, &cisinfo); |
686 | if (ret || !cisinfo.Chains) { | |
687 | ds_dbg(0, "invalid CIS or invalid resources\n"); | |
688 | return -ENODEV; | |
689 | } | |
690 | ||
691 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
692 | no_funcs = mfc.nfn; | |
693 | else | |
694 | no_funcs = 1; | |
695 | ||
1da177e4 | 696 | for (i=0; i < no_funcs; i++) |
dc109497 | 697 | pcmcia_device_add(s, i); |
1da177e4 LT |
698 | |
699 | return (ret); | |
700 | } | |
701 | ||
702 | ||
1ad275e3 DB |
703 | static void pcmcia_delayed_add_pseudo_device(void *data) |
704 | { | |
dc109497 | 705 | struct pcmcia_socket *s = data; |
1ad275e3 | 706 | pcmcia_device_add(s, 0); |
b5e43913 | 707 | s->pcmcia_state.device_add_pending = 0; |
1ad275e3 DB |
708 | } |
709 | ||
e2f0b534 | 710 | static int pcmcia_requery(struct device *dev, void * _data) |
ff1fa9ef | 711 | { |
e2f0b534 DB |
712 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
713 | if (!p_dev->dev.driver) | |
714 | pcmcia_device_query(p_dev); | |
715 | ||
716 | return 0; | |
717 | } | |
718 | ||
719 | static void pcmcia_bus_rescan(struct pcmcia_socket *skt) | |
720 | { | |
721 | int no_devices=0; | |
722 | unsigned long flags; | |
723 | ||
7fe908dd | 724 | /* must be called with skt_mutex held */ |
e2f0b534 | 725 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
dc109497 | 726 | if (list_empty(&skt->devices_list)) |
e2f0b534 DB |
727 | no_devices=1; |
728 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
729 | ||
730 | /* if no devices were added for this socket yet because of | |
731 | * missing resource information or other trouble, we need to | |
732 | * do this now. */ | |
733 | if (no_devices) { | |
734 | int ret = pcmcia_card_add(skt); | |
735 | if (ret) | |
736 | return; | |
737 | } | |
738 | ||
739 | /* some device information might have changed because of a CIS | |
740 | * update or because we can finally read it correctly... so | |
741 | * determine it again, overwriting old values if necessary. */ | |
742 | bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery); | |
743 | ||
744 | /* we re-scan all devices, not just the ones connected to this | |
745 | * socket. This does not matter, though. */ | |
a5b55778 | 746 | bus_rescan_devices(&pcmcia_bus_type); |
ff1fa9ef | 747 | } |
1ad275e3 DB |
748 | |
749 | static inline int pcmcia_devmatch(struct pcmcia_device *dev, | |
750 | struct pcmcia_device_id *did) | |
751 | { | |
752 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) { | |
753 | if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id)) | |
754 | return 0; | |
755 | } | |
756 | ||
757 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) { | |
758 | if ((!dev->has_card_id) || (dev->card_id != did->card_id)) | |
759 | return 0; | |
760 | } | |
761 | ||
762 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) { | |
763 | if (dev->func != did->function) | |
764 | return 0; | |
765 | } | |
766 | ||
767 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) { | |
768 | if (!dev->prod_id[0]) | |
769 | return 0; | |
770 | if (strcmp(did->prod_id[0], dev->prod_id[0])) | |
771 | return 0; | |
772 | } | |
773 | ||
774 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) { | |
775 | if (!dev->prod_id[1]) | |
776 | return 0; | |
777 | if (strcmp(did->prod_id[1], dev->prod_id[1])) | |
778 | return 0; | |
779 | } | |
780 | ||
781 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) { | |
782 | if (!dev->prod_id[2]) | |
783 | return 0; | |
784 | if (strcmp(did->prod_id[2], dev->prod_id[2])) | |
785 | return 0; | |
786 | } | |
787 | ||
788 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) { | |
789 | if (!dev->prod_id[3]) | |
790 | return 0; | |
791 | if (strcmp(did->prod_id[3], dev->prod_id[3])) | |
792 | return 0; | |
793 | } | |
794 | ||
795 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { | |
1ad275e3 DB |
796 | if (dev->device_no != did->device_no) |
797 | return 0; | |
798 | } | |
799 | ||
800 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { | |
801 | if ((!dev->has_func_id) || (dev->func_id != did->func_id)) | |
802 | return 0; | |
803 | ||
804 | /* if this is a pseudo-multi-function device, | |
805 | * we need explicit matches */ | |
806 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) | |
807 | return 0; | |
808 | if (dev->device_no) | |
809 | return 0; | |
810 | ||
811 | /* also, FUNC_ID matching needs to be activated by userspace | |
812 | * after it has re-checked that there is no possible module | |
813 | * with a prod_id/manf_id/card_id match. | |
814 | */ | |
815 | if (!dev->allow_func_id_match) | |
816 | return 0; | |
817 | } | |
818 | ||
ea7b3882 | 819 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { |
daa9517d DB |
820 | if (!dev->socket->fake_cis) |
821 | pcmcia_load_firmware(dev, did->cisfile); | |
822 | ||
823 | if (!dev->socket->fake_cis) | |
ea7b3882 | 824 | return 0; |
ea7b3882 DB |
825 | } |
826 | ||
f602ff7e DB |
827 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { |
828 | int i; | |
829 | for (i=0; i<4; i++) | |
830 | if (dev->prod_id[i]) | |
831 | return 0; | |
832 | if (dev->has_manf_id || dev->has_card_id || dev->has_func_id) | |
833 | return 0; | |
834 | } | |
835 | ||
1ad275e3 DB |
836 | dev->dev.driver_data = (void *) did; |
837 | ||
838 | return 1; | |
839 | } | |
840 | ||
841 | ||
1da177e4 LT |
842 | static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) { |
843 | struct pcmcia_device * p_dev = to_pcmcia_dev(dev); | |
844 | struct pcmcia_driver * p_drv = to_pcmcia_drv(drv); | |
1ad275e3 | 845 | struct pcmcia_device_id *did = p_drv->id_table; |
1da177e4 | 846 | |
0e0fad8f | 847 | #ifdef CONFIG_PCMCIA_IOCTL |
1da177e4 LT |
848 | /* matching by cardmgr */ |
849 | if (p_dev->cardmgr == p_drv) | |
850 | return 1; | |
0e0fad8f | 851 | #endif |
1da177e4 | 852 | |
1ad275e3 DB |
853 | while (did && did->match_flags) { |
854 | if (pcmcia_devmatch(p_dev, did)) | |
855 | return 1; | |
856 | did++; | |
857 | } | |
858 | ||
1da177e4 LT |
859 | return 0; |
860 | } | |
861 | ||
840c2ac5 DB |
862 | #ifdef CONFIG_HOTPLUG |
863 | ||
312c004d KS |
864 | static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, |
865 | char *buffer, int buffer_size) | |
840c2ac5 DB |
866 | { |
867 | struct pcmcia_device *p_dev; | |
868 | int i, length = 0; | |
869 | u32 hash[4] = { 0, 0, 0, 0}; | |
870 | ||
871 | if (!dev) | |
872 | return -ENODEV; | |
873 | ||
874 | p_dev = to_pcmcia_dev(dev); | |
875 | ||
876 | /* calculate hashes */ | |
877 | for (i=0; i<4; i++) { | |
878 | if (!p_dev->prod_id[i]) | |
879 | continue; | |
880 | hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); | |
881 | } | |
882 | ||
883 | i = 0; | |
884 | ||
312c004d KS |
885 | if (add_uevent_var(envp, num_envp, &i, |
886 | buffer, buffer_size, &length, | |
887 | "SOCKET_NO=%u", | |
888 | p_dev->socket->sock)) | |
840c2ac5 DB |
889 | return -ENOMEM; |
890 | ||
312c004d KS |
891 | if (add_uevent_var(envp, num_envp, &i, |
892 | buffer, buffer_size, &length, | |
893 | "DEVICE_NO=%02X", | |
894 | p_dev->device_no)) | |
840c2ac5 DB |
895 | return -ENOMEM; |
896 | ||
312c004d KS |
897 | if (add_uevent_var(envp, num_envp, &i, |
898 | buffer, buffer_size, &length, | |
899 | "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
900 | "pa%08Xpb%08Xpc%08Xpd%08X", | |
901 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
902 | p_dev->has_card_id ? p_dev->card_id : 0, | |
903 | p_dev->has_func_id ? p_dev->func_id : 0, | |
904 | p_dev->func, | |
905 | p_dev->device_no, | |
906 | hash[0], | |
907 | hash[1], | |
908 | hash[2], | |
909 | hash[3])) | |
840c2ac5 DB |
910 | return -ENOMEM; |
911 | ||
912 | envp[i] = NULL; | |
913 | ||
914 | return 0; | |
915 | } | |
916 | ||
917 | #else | |
918 | ||
312c004d | 919 | static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, |
840c2ac5 DB |
920 | char *buffer, int buffer_size) |
921 | { | |
922 | return -ENODEV; | |
923 | } | |
924 | ||
925 | #endif | |
926 | ||
1da177e4 LT |
927 | /************************ per-device sysfs output ***************************/ |
928 | ||
929 | #define pcmcia_device_attr(field, test, format) \ | |
e404e274 | 930 | static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
931 | { \ |
932 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
933 | return p_dev->test ? sprintf (buf, format, p_dev->field) : -ENODEV; \ | |
934 | } | |
935 | ||
936 | #define pcmcia_device_stringattr(name, field) \ | |
e404e274 | 937 | static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
938 | { \ |
939 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
940 | return p_dev->field ? sprintf (buf, "%s\n", p_dev->field) : -ENODEV; \ | |
941 | } | |
942 | ||
943 | pcmcia_device_attr(func, socket, "0x%02x\n"); | |
944 | pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); | |
945 | pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); | |
946 | pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); | |
947 | pcmcia_device_stringattr(prod_id1, prod_id[0]); | |
948 | pcmcia_device_stringattr(prod_id2, prod_id[1]); | |
949 | pcmcia_device_stringattr(prod_id3, prod_id[2]); | |
950 | pcmcia_device_stringattr(prod_id4, prod_id[3]); | |
951 | ||
db1019ca DB |
952 | |
953 | static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf) | |
954 | { | |
955 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
956 | ||
f6fbe01a | 957 | if (p_dev->suspended) |
db1019ca DB |
958 | return sprintf(buf, "off\n"); |
959 | else | |
960 | return sprintf(buf, "on\n"); | |
961 | } | |
962 | ||
963 | static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr, | |
964 | const char *buf, size_t count) | |
965 | { | |
966 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
967 | int ret = 0; | |
968 | ||
969 | if (!count) | |
970 | return -EINVAL; | |
971 | ||
f6fbe01a | 972 | if ((!p_dev->suspended) && !strncmp(buf, "off", 3)) |
db1019ca | 973 | ret = dpm_runtime_suspend(dev, PMSG_SUSPEND); |
f6fbe01a | 974 | else if (p_dev->suspended && !strncmp(buf, "on", 2)) |
db1019ca DB |
975 | dpm_runtime_resume(dev); |
976 | ||
977 | return ret ? ret : count; | |
978 | } | |
979 | ||
980 | ||
3704511b | 981 | static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) |
3248ff43 DB |
982 | { |
983 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
984 | int i; | |
985 | u32 hash[4] = { 0, 0, 0, 0}; | |
986 | ||
987 | /* calculate hashes */ | |
988 | for (i=0; i<4; i++) { | |
989 | if (!p_dev->prod_id[i]) | |
990 | continue; | |
991 | hash[i] = crc32(0,p_dev->prod_id[i],strlen(p_dev->prod_id[i])); | |
992 | } | |
993 | return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
994 | "pa%08Xpb%08Xpc%08Xpd%08X\n", | |
995 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
996 | p_dev->has_card_id ? p_dev->card_id : 0, | |
997 | p_dev->has_func_id ? p_dev->func_id : 0, | |
998 | p_dev->func, p_dev->device_no, | |
999 | hash[0], hash[1], hash[2], hash[3]); | |
1000 | } | |
a5b55778 | 1001 | |
3248ff43 DB |
1002 | static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, |
1003 | struct device_attribute *attr, const char *buf, size_t count) | |
a5b55778 DB |
1004 | { |
1005 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
db1019ca DB |
1006 | |
1007 | if (!count) | |
1008 | return -EINVAL; | |
a5b55778 | 1009 | |
7fe908dd | 1010 | mutex_lock(&p_dev->socket->skt_mutex); |
a5b55778 | 1011 | p_dev->allow_func_id_match = 1; |
7fe908dd | 1012 | mutex_unlock(&p_dev->socket->skt_mutex); |
a5b55778 DB |
1013 | |
1014 | bus_rescan_devices(&pcmcia_bus_type); | |
1015 | ||
1016 | return count; | |
1017 | } | |
1018 | ||
1da177e4 LT |
1019 | static struct device_attribute pcmcia_dev_attrs[] = { |
1020 | __ATTR(function, 0444, func_show, NULL), | |
db1019ca | 1021 | __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state), |
1da177e4 LT |
1022 | __ATTR_RO(func_id), |
1023 | __ATTR_RO(manf_id), | |
1024 | __ATTR_RO(card_id), | |
1025 | __ATTR_RO(prod_id1), | |
1026 | __ATTR_RO(prod_id2), | |
1027 | __ATTR_RO(prod_id3), | |
1028 | __ATTR_RO(prod_id4), | |
3248ff43 | 1029 | __ATTR_RO(modalias), |
a5b55778 | 1030 | __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), |
1da177e4 LT |
1031 | __ATTR_NULL, |
1032 | }; | |
1033 | ||
8e9e793d DB |
1034 | /* PM support, also needed for reset */ |
1035 | ||
1036 | static int pcmcia_dev_suspend(struct device * dev, pm_message_t state) | |
1037 | { | |
1038 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1039 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1040 | int ret = 0; |
8e9e793d DB |
1041 | |
1042 | if (dev->driver) | |
1043 | p_drv = to_pcmcia_drv(dev->driver); | |
1044 | ||
e2d40963 DB |
1045 | if (!p_drv) |
1046 | goto out; | |
1047 | ||
1048 | if (p_drv->suspend) { | |
8661bb5b DB |
1049 | ret = p_drv->suspend(p_dev); |
1050 | if (ret) | |
f6fbe01a | 1051 | goto out; |
8661bb5b | 1052 | } |
8e9e793d | 1053 | |
e2d40963 DB |
1054 | if (p_dev->device_no == p_dev->func) |
1055 | pcmcia_release_configuration(p_dev); | |
1056 | ||
f6fbe01a DB |
1057 | out: |
1058 | if (!ret) | |
1059 | p_dev->suspended = 1; | |
1060 | return ret; | |
8e9e793d DB |
1061 | } |
1062 | ||
1063 | ||
1064 | static int pcmcia_dev_resume(struct device * dev) | |
1065 | { | |
1066 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1067 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1068 | int ret = 0; |
8e9e793d DB |
1069 | |
1070 | if (dev->driver) | |
1071 | p_drv = to_pcmcia_drv(dev->driver); | |
1072 | ||
e2d40963 DB |
1073 | if (!p_drv) |
1074 | goto out; | |
1075 | ||
1076 | if (p_dev->device_no == p_dev->func) { | |
1077 | ret = pcmcia_request_configuration(p_dev, &p_dev->conf); | |
1078 | if (ret) | |
1079 | goto out; | |
8661bb5b | 1080 | } |
8e9e793d | 1081 | |
e2d40963 DB |
1082 | if (p_drv->resume) |
1083 | ret = p_drv->resume(p_dev); | |
1084 | ||
f6fbe01a DB |
1085 | out: |
1086 | if (!ret) | |
1087 | p_dev->suspended = 0; | |
1088 | return ret; | |
8e9e793d DB |
1089 | } |
1090 | ||
1091 | ||
1092 | static int pcmcia_bus_suspend_callback(struct device *dev, void * _data) | |
1093 | { | |
1094 | struct pcmcia_socket *skt = _data; | |
1095 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1096 | ||
1097 | if (p_dev->socket != skt) | |
1098 | return 0; | |
1099 | ||
1100 | return dpm_runtime_suspend(dev, PMSG_SUSPEND); | |
1101 | } | |
1102 | ||
1103 | static int pcmcia_bus_resume_callback(struct device *dev, void * _data) | |
1104 | { | |
1105 | struct pcmcia_socket *skt = _data; | |
1106 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1107 | ||
1108 | if (p_dev->socket != skt) | |
1109 | return 0; | |
1110 | ||
1111 | dpm_runtime_resume(dev); | |
1112 | ||
1113 | return 0; | |
1114 | } | |
1115 | ||
1116 | static int pcmcia_bus_resume(struct pcmcia_socket *skt) | |
1117 | { | |
1118 | bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback); | |
1119 | return 0; | |
1120 | } | |
1121 | ||
1122 | static int pcmcia_bus_suspend(struct pcmcia_socket *skt) | |
1123 | { | |
1124 | if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt, | |
1125 | pcmcia_bus_suspend_callback)) { | |
1126 | pcmcia_bus_resume(skt); | |
1127 | return -EIO; | |
1128 | } | |
1129 | return 0; | |
1130 | } | |
1131 | ||
1da177e4 | 1132 | |
1da177e4 LT |
1133 | /*====================================================================== |
1134 | ||
1135 | The card status event handler. | |
1136 | ||
1137 | ======================================================================*/ | |
1138 | ||
1da177e4 LT |
1139 | /* Normally, the event is passed to individual drivers after |
1140 | * informing userspace. Only for CS_EVENT_CARD_REMOVAL this | |
1141 | * is inversed to maintain historic compatibility. | |
1142 | */ | |
1143 | ||
1144 | static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) | |
1145 | { | |
dc109497 | 1146 | struct pcmcia_socket *s = pcmcia_get_socket(skt); |
1da177e4 LT |
1147 | |
1148 | ds_dbg(1, "ds_event(0x%06x, %d, 0x%p)\n", | |
dc109497 | 1149 | event, priority, skt); |
1da177e4 | 1150 | |
f8cfa618 | 1151 | switch (event) { |
1da177e4 | 1152 | case CS_EVENT_CARD_REMOVAL: |
b5e43913 | 1153 | s->pcmcia_state.present = 0; |
d6ff5a85 | 1154 | pcmcia_card_remove(skt, NULL); |
dc109497 | 1155 | handle_event(skt, event); |
1da177e4 | 1156 | break; |
f8cfa618 | 1157 | |
1da177e4 | 1158 | case CS_EVENT_CARD_INSERTION: |
b5e43913 | 1159 | s->pcmcia_state.present = 1; |
1da177e4 | 1160 | pcmcia_card_add(skt); |
dc109497 | 1161 | handle_event(skt, event); |
1da177e4 LT |
1162 | break; |
1163 | ||
1164 | case CS_EVENT_EJECTION_REQUEST: | |
1da177e4 LT |
1165 | break; |
1166 | ||
8e9e793d DB |
1167 | case CS_EVENT_PM_SUSPEND: |
1168 | case CS_EVENT_PM_RESUME: | |
1169 | case CS_EVENT_RESET_PHYSICAL: | |
1170 | case CS_EVENT_CARD_RESET: | |
1da177e4 | 1171 | default: |
dc109497 | 1172 | handle_event(skt, event); |
1da177e4 LT |
1173 | break; |
1174 | } | |
1175 | ||
dc109497 DB |
1176 | pcmcia_put_socket(s); |
1177 | ||
1da177e4 LT |
1178 | return 0; |
1179 | } /* ds_event */ | |
1180 | ||
1181 | ||
9940ec36 DB |
1182 | struct pcmcia_device * pcmcia_dev_present(struct pcmcia_device *_p_dev) |
1183 | { | |
1184 | struct pcmcia_device *p_dev; | |
1185 | struct pcmcia_device *ret = NULL; | |
1186 | ||
1187 | p_dev = pcmcia_get_dev(_p_dev); | |
1188 | if (!p_dev) | |
1189 | return NULL; | |
1190 | ||
1191 | if (!p_dev->socket->pcmcia_state.present) | |
1192 | goto out; | |
1193 | ||
1194 | if (p_dev->_removed) | |
1195 | goto out; | |
1196 | ||
1197 | if (p_dev->suspended) | |
1198 | goto out; | |
1199 | ||
1200 | ret = p_dev; | |
1201 | out: | |
1202 | pcmcia_put_dev(p_dev); | |
1203 | return ret; | |
1204 | } | |
1205 | EXPORT_SYMBOL(pcmcia_dev_present); | |
1206 | ||
1207 | ||
90c6cdd1 DB |
1208 | static struct pcmcia_callback pcmcia_bus_callback = { |
1209 | .owner = THIS_MODULE, | |
1210 | .event = ds_event, | |
1211 | .requery = pcmcia_bus_rescan, | |
8e9e793d DB |
1212 | .suspend = pcmcia_bus_suspend, |
1213 | .resume = pcmcia_bus_resume, | |
90c6cdd1 DB |
1214 | }; |
1215 | ||
d8539d81 DT |
1216 | static int __devinit pcmcia_bus_add_socket(struct class_device *class_dev, |
1217 | struct class_interface *class_intf) | |
1da177e4 LT |
1218 | { |
1219 | struct pcmcia_socket *socket = class_get_devdata(class_dev); | |
1da177e4 LT |
1220 | int ret; |
1221 | ||
dc109497 DB |
1222 | socket = pcmcia_get_socket(socket); |
1223 | if (!socket) { | |
1da177e4 | 1224 | printk(KERN_ERR "PCMCIA obtaining reference to socket %p failed\n", socket); |
1da177e4 LT |
1225 | return -ENODEV; |
1226 | } | |
1227 | ||
1da177e4 LT |
1228 | /* |
1229 | * Ugly. But we want to wait for the socket threads to have started up. | |
1230 | * We really should let the drivers themselves drive some of this.. | |
1231 | */ | |
1232 | msleep(250); | |
1233 | ||
e7a480d2 | 1234 | #ifdef CONFIG_PCMCIA_IOCTL |
dc109497 | 1235 | init_waitqueue_head(&socket->queue); |
e7a480d2 | 1236 | #endif |
dc109497 DB |
1237 | INIT_LIST_HEAD(&socket->devices_list); |
1238 | INIT_WORK(&socket->device_add, pcmcia_delayed_add_pseudo_device, socket); | |
1239 | memset(&socket->pcmcia_state, 0, sizeof(u8)); | |
1240 | socket->device_count = 0; | |
1da177e4 | 1241 | |
90c6cdd1 | 1242 | ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback); |
1da177e4 LT |
1243 | if (ret) { |
1244 | printk(KERN_ERR "PCMCIA registration PCCard core failed for socket %p\n", socket); | |
dc109497 | 1245 | pcmcia_put_socket(socket); |
1da177e4 LT |
1246 | return (ret); |
1247 | } | |
1248 | ||
1249 | return 0; | |
1250 | } | |
1251 | ||
d8539d81 DT |
1252 | static void pcmcia_bus_remove_socket(struct class_device *class_dev, |
1253 | struct class_interface *class_intf) | |
1da177e4 LT |
1254 | { |
1255 | struct pcmcia_socket *socket = class_get_devdata(class_dev); | |
1256 | ||
dc109497 | 1257 | if (!socket) |
1da177e4 LT |
1258 | return; |
1259 | ||
dc109497 | 1260 | socket->pcmcia_state.dead = 1; |
1da177e4 LT |
1261 | pccard_register_pcmcia(socket, NULL); |
1262 | ||
dc109497 | 1263 | pcmcia_put_socket(socket); |
1da177e4 LT |
1264 | |
1265 | return; | |
1266 | } | |
1267 | ||
1268 | ||
1269 | /* the pcmcia_bus_interface is used to handle pcmcia socket devices */ | |
1270 | static struct class_interface pcmcia_bus_interface = { | |
1271 | .class = &pcmcia_socket_class, | |
1272 | .add = &pcmcia_bus_add_socket, | |
1273 | .remove = &pcmcia_bus_remove_socket, | |
1274 | }; | |
1275 | ||
1276 | ||
e7a480d2 | 1277 | struct bus_type pcmcia_bus_type = { |
1da177e4 | 1278 | .name = "pcmcia", |
312c004d | 1279 | .uevent = pcmcia_bus_uevent, |
1da177e4 LT |
1280 | .match = pcmcia_bus_match, |
1281 | .dev_attrs = pcmcia_dev_attrs, | |
1d0baa3a RK |
1282 | .probe = pcmcia_device_probe, |
1283 | .remove = pcmcia_device_remove, | |
8e9e793d DB |
1284 | .suspend = pcmcia_dev_suspend, |
1285 | .resume = pcmcia_dev_resume, | |
1da177e4 | 1286 | }; |
1da177e4 LT |
1287 | |
1288 | ||
1289 | static int __init init_pcmcia_bus(void) | |
1290 | { | |
1da177e4 LT |
1291 | spin_lock_init(&pcmcia_dev_list_lock); |
1292 | ||
1293 | bus_register(&pcmcia_bus_type); | |
1294 | class_interface_register(&pcmcia_bus_interface); | |
1295 | ||
e7a480d2 | 1296 | pcmcia_setup_ioctl(); |
1da177e4 LT |
1297 | |
1298 | return 0; | |
1299 | } | |
1300 | fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that | |
1301 | * pcmcia_socket_class is already registered */ | |
1302 | ||
1303 | ||
1304 | static void __exit exit_pcmcia_bus(void) | |
1305 | { | |
e7a480d2 | 1306 | pcmcia_cleanup_ioctl(); |
1da177e4 | 1307 | |
e7a480d2 | 1308 | class_interface_unregister(&pcmcia_bus_interface); |
1da177e4 LT |
1309 | |
1310 | bus_unregister(&pcmcia_bus_type); | |
1311 | } | |
1312 | module_exit(exit_pcmcia_bus); | |
1313 | ||
1314 | ||
1da177e4 | 1315 | MODULE_ALIAS("ds"); |