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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * ds.c -- 16-bit PCMCIA core support | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * The initial developer of the original code is David A. Hinds | |
9 | * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds | |
10 | * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. | |
11 | * | |
12 | * (C) 1999 David A. Hinds | |
8661bb5b | 13 | * (C) 2003 - 2006 Dominik Brodowski |
1da177e4 LT |
14 | */ |
15 | ||
3b659fb8 | 16 | #include <linux/kernel.h> |
1da177e4 | 17 | #include <linux/module.h> |
1da177e4 | 18 | #include <linux/init.h> |
1da177e4 | 19 | #include <linux/errno.h> |
1da177e4 LT |
20 | #include <linux/list.h> |
21 | #include <linux/delay.h> | |
1da177e4 | 22 | #include <linux/workqueue.h> |
840c2ac5 | 23 | #include <linux/crc32.h> |
daa9517d | 24 | #include <linux/firmware.h> |
360b65b9 | 25 | #include <linux/kref.h> |
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 | |
90ff8700 | 239 | * @filename - requested filename in /lib/firmware/ |
daa9517d DB |
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 | |
90ff8700 | 243 | * /lib/firmware/ in userspace. |
daa9517d DB |
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 | */ | |
1da177e4 LT |
301 | int pcmcia_register_driver(struct pcmcia_driver *driver) |
302 | { | |
303 | if (!driver) | |
304 | return -EINVAL; | |
305 | ||
23a83bfe DB |
306 | pcmcia_check_driver(driver); |
307 | ||
1da177e4 LT |
308 | /* initialize common fields */ |
309 | driver->drv.bus = &pcmcia_bus_type; | |
310 | driver->drv.owner = driver->owner; | |
1da177e4 LT |
311 | |
312 | return driver_register(&driver->drv); | |
313 | } | |
314 | EXPORT_SYMBOL(pcmcia_register_driver); | |
315 | ||
316 | /** | |
317 | * pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core | |
318 | */ | |
319 | void pcmcia_unregister_driver(struct pcmcia_driver *driver) | |
320 | { | |
321 | driver_unregister(&driver->drv); | |
322 | } | |
323 | EXPORT_SYMBOL(pcmcia_unregister_driver); | |
324 | ||
1da177e4 LT |
325 | |
326 | /* pcmcia_device handling */ | |
327 | ||
e7a480d2 | 328 | struct pcmcia_device * pcmcia_get_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
329 | { |
330 | struct device *tmp_dev; | |
331 | tmp_dev = get_device(&p_dev->dev); | |
332 | if (!tmp_dev) | |
333 | return NULL; | |
334 | return to_pcmcia_dev(tmp_dev); | |
335 | } | |
336 | ||
e7a480d2 | 337 | void pcmcia_put_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
338 | { |
339 | if (p_dev) | |
340 | put_device(&p_dev->dev); | |
341 | } | |
342 | ||
360b65b9 DB |
343 | static void pcmcia_release_function(struct kref *ref) |
344 | { | |
345 | struct config_t *c = container_of(ref, struct config_t, ref); | |
346 | kfree(c); | |
347 | } | |
348 | ||
1da177e4 LT |
349 | static void pcmcia_release_dev(struct device *dev) |
350 | { | |
351 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
352 | ds_dbg(1, "releasing dev %p\n", p_dev); | |
dc109497 | 353 | pcmcia_put_socket(p_dev->socket); |
bd65a685 | 354 | kfree(p_dev->devname); |
360b65b9 | 355 | kref_put(&p_dev->function_config->ref, pcmcia_release_function); |
1da177e4 LT |
356 | kfree(p_dev); |
357 | } | |
358 | ||
82d56e6d DB |
359 | static void pcmcia_add_pseudo_device(struct pcmcia_socket *s) |
360 | { | |
361 | if (!s->pcmcia_state.device_add_pending) { | |
362 | s->pcmcia_state.device_add_pending = 1; | |
363 | schedule_work(&s->device_add); | |
364 | } | |
365 | return; | |
366 | } | |
1da177e4 LT |
367 | |
368 | static int pcmcia_device_probe(struct device * dev) | |
369 | { | |
370 | struct pcmcia_device *p_dev; | |
371 | struct pcmcia_driver *p_drv; | |
82d56e6d | 372 | struct pcmcia_device_id *did; |
f8cfa618 | 373 | struct pcmcia_socket *s; |
1da177e4 LT |
374 | int ret = 0; |
375 | ||
376 | dev = get_device(dev); | |
377 | if (!dev) | |
378 | return -ENODEV; | |
379 | ||
380 | p_dev = to_pcmcia_dev(dev); | |
381 | p_drv = to_pcmcia_drv(dev->driver); | |
f8cfa618 | 382 | s = p_dev->socket; |
1da177e4 | 383 | |
360b65b9 DB |
384 | if ((!p_drv->probe) || (!p_dev->function_config) || |
385 | (!try_module_get(p_drv->owner))) { | |
1da177e4 LT |
386 | ret = -EINVAL; |
387 | goto put_dev; | |
388 | } | |
389 | ||
f8cfa618 | 390 | ret = p_drv->probe(p_dev); |
82d56e6d DB |
391 | if (ret) |
392 | goto put_module; | |
393 | ||
394 | /* handle pseudo multifunction devices: | |
395 | * there are at most two pseudo multifunction devices. | |
396 | * if we're matching against the first, schedule a | |
397 | * call which will then check whether there are two | |
398 | * pseudo devices, and if not, add the second one. | |
399 | */ | |
80a55e92 | 400 | did = p_dev->dev.driver_data; |
4ceadbf5 | 401 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
82d56e6d DB |
402 | (p_dev->socket->device_count == 1) && (p_dev->device_no == 0)) |
403 | pcmcia_add_pseudo_device(p_dev->socket); | |
f8cfa618 DB |
404 | |
405 | put_module: | |
1da177e4 LT |
406 | if (ret) |
407 | module_put(p_drv->owner); | |
408 | put_dev: | |
f8cfa618 | 409 | if (ret) |
1da177e4 LT |
410 | put_device(dev); |
411 | return (ret); | |
412 | } | |
413 | ||
414 | ||
d6ff5a85 DB |
415 | /* |
416 | * Removes a PCMCIA card from the device tree and socket list. | |
417 | */ | |
418 | static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *leftover) | |
419 | { | |
420 | struct pcmcia_device *p_dev; | |
421 | struct pcmcia_device *tmp; | |
422 | unsigned long flags; | |
423 | ||
424 | ds_dbg(2, "unbind_request(%d)\n", s->sock); | |
425 | ||
426 | ||
427 | if (!leftover) | |
428 | s->device_count = 0; | |
429 | else | |
430 | s->device_count = 1; | |
431 | ||
432 | /* unregister all pcmcia_devices registered with this socket, except leftover */ | |
433 | list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) { | |
434 | if (p_dev == leftover) | |
435 | continue; | |
436 | ||
437 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
438 | list_del(&p_dev->socket_device_list); | |
439 | p_dev->_removed=1; | |
440 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
441 | ||
442 | device_unregister(&p_dev->dev); | |
443 | } | |
444 | ||
445 | return; | |
446 | } | |
447 | ||
1da177e4 LT |
448 | static int pcmcia_device_remove(struct device * dev) |
449 | { | |
450 | struct pcmcia_device *p_dev; | |
451 | struct pcmcia_driver *p_drv; | |
d6ff5a85 | 452 | struct pcmcia_device_id *did; |
cc3b4866 | 453 | int i; |
1da177e4 | 454 | |
1da177e4 LT |
455 | p_dev = to_pcmcia_dev(dev); |
456 | p_drv = to_pcmcia_drv(dev->driver); | |
d6ff5a85 DB |
457 | |
458 | /* If we're removing the primary module driving a | |
459 | * pseudo multi-function card, we need to unbind | |
460 | * all devices | |
461 | */ | |
80a55e92 | 462 | did = p_dev->dev.driver_data; |
b2f51a1c | 463 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
d6ff5a85 DB |
464 | (p_dev->socket->device_count != 0) && |
465 | (p_dev->device_no == 0)) | |
466 | pcmcia_card_remove(p_dev->socket, p_dev); | |
467 | ||
468 | /* detach the "instance" */ | |
f3990715 DB |
469 | if (!p_drv) |
470 | return 0; | |
1da177e4 | 471 | |
f3990715 | 472 | if (p_drv->remove) |
cc3b4866 DB |
473 | p_drv->remove(p_dev); |
474 | ||
a0aab143 DB |
475 | p_dev->dev_node = NULL; |
476 | ||
f3990715 | 477 | /* check for proper unloading */ |
e2d40963 | 478 | if (p_dev->_irq || p_dev->_io || p_dev->_locked) |
f3990715 DB |
479 | printk(KERN_INFO "pcmcia: driver %s did not release config properly\n", |
480 | p_drv->drv.name); | |
cc3b4866 | 481 | |
f3990715 | 482 | for (i = 0; i < MAX_WIN; i++) |
e2d40963 | 483 | if (p_dev->_win & CLIENT_WIN_REQ(i)) |
f3990715 DB |
484 | printk(KERN_INFO "pcmcia: driver %s did not release windows properly\n", |
485 | p_drv->drv.name); | |
cc3b4866 | 486 | |
f3990715 DB |
487 | /* references from pcmcia_probe_device */ |
488 | pcmcia_put_dev(p_dev); | |
489 | module_put(p_drv->owner); | |
1da177e4 LT |
490 | |
491 | return 0; | |
492 | } | |
493 | ||
494 | ||
1da177e4 LT |
495 | /* |
496 | * pcmcia_device_query -- determine information about a pcmcia device | |
497 | */ | |
498 | static int pcmcia_device_query(struct pcmcia_device *p_dev) | |
499 | { | |
500 | cistpl_manfid_t manf_id; | |
501 | cistpl_funcid_t func_id; | |
76fa82fb | 502 | cistpl_vers_1_t *vers1; |
1da177e4 LT |
503 | unsigned int i; |
504 | ||
76fa82fb IM |
505 | vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL); |
506 | if (!vers1) | |
507 | return -ENOMEM; | |
508 | ||
1da177e4 LT |
509 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
510 | CISTPL_MANFID, &manf_id)) { | |
511 | p_dev->manf_id = manf_id.manf; | |
512 | p_dev->card_id = manf_id.card; | |
513 | p_dev->has_manf_id = 1; | |
514 | p_dev->has_card_id = 1; | |
515 | } | |
516 | ||
517 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, | |
518 | CISTPL_FUNCID, &func_id)) { | |
519 | p_dev->func_id = func_id.func; | |
520 | p_dev->has_func_id = 1; | |
521 | } else { | |
522 | /* rule of thumb: cards with no FUNCID, but with | |
523 | * common memory device geometry information, are | |
524 | * probably memory cards (from pcmcia-cs) */ | |
76fa82fb IM |
525 | cistpl_device_geo_t *devgeo; |
526 | ||
527 | devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL); | |
528 | if (!devgeo) { | |
529 | kfree(vers1); | |
530 | return -ENOMEM; | |
531 | } | |
1da177e4 | 532 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
76fa82fb | 533 | CISTPL_DEVICE_GEO, devgeo)) { |
1da177e4 LT |
534 | ds_dbg(0, "mem device geometry probably means " |
535 | "FUNCID_MEMORY\n"); | |
536 | p_dev->func_id = CISTPL_FUNCID_MEMORY; | |
537 | p_dev->has_func_id = 1; | |
538 | } | |
76fa82fb | 539 | kfree(devgeo); |
1da177e4 LT |
540 | } |
541 | ||
542 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_VERS_1, | |
76fa82fb IM |
543 | vers1)) { |
544 | for (i=0; i < vers1->ns; i++) { | |
1da177e4 LT |
545 | char *tmp; |
546 | unsigned int length; | |
547 | ||
76fa82fb | 548 | tmp = vers1->str + vers1->ofs[i]; |
1da177e4 LT |
549 | |
550 | length = strlen(tmp) + 1; | |
6e3d4f25 | 551 | if ((length < 2) || (length > 255)) |
1da177e4 LT |
552 | continue; |
553 | ||
554 | p_dev->prod_id[i] = kmalloc(sizeof(char) * length, | |
555 | GFP_KERNEL); | |
556 | if (!p_dev->prod_id[i]) | |
557 | continue; | |
558 | ||
559 | p_dev->prod_id[i] = strncpy(p_dev->prod_id[i], | |
560 | tmp, length); | |
561 | } | |
562 | } | |
563 | ||
76fa82fb | 564 | kfree(vers1); |
1da177e4 LT |
565 | return 0; |
566 | } | |
567 | ||
568 | ||
569 | /* device_add_lock is needed to avoid double registration by cardmgr and kernel. | |
570 | * Serializes pcmcia_device_add; will most likely be removed in future. | |
571 | * | |
572 | * While it has the caveat that adding new PCMCIA devices inside(!) device_register() | |
573 | * won't work, this doesn't matter much at the moment: the driver core doesn't | |
574 | * support it either. | |
575 | */ | |
7fe908dd | 576 | static DEFINE_MUTEX(device_add_lock); |
1da177e4 | 577 | |
dc109497 | 578 | struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function) |
1da177e4 | 579 | { |
360b65b9 | 580 | struct pcmcia_device *p_dev, *tmp_dev; |
1da177e4 | 581 | unsigned long flags; |
bd65a685 | 582 | int bus_id_len; |
1da177e4 | 583 | |
dc109497 | 584 | s = pcmcia_get_socket(s); |
1da177e4 LT |
585 | if (!s) |
586 | return NULL; | |
587 | ||
7fe908dd | 588 | mutex_lock(&device_add_lock); |
1da177e4 | 589 | |
1ad275e3 DB |
590 | /* max of 2 devices per card */ |
591 | if (s->device_count == 2) | |
592 | goto err_put; | |
593 | ||
8084b372 | 594 | p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL); |
1da177e4 LT |
595 | if (!p_dev) |
596 | goto err_put; | |
1da177e4 | 597 | |
dc109497 | 598 | p_dev->socket = s; |
1da177e4 LT |
599 | p_dev->device_no = (s->device_count++); |
600 | p_dev->func = function; | |
552dc85d DB |
601 | if (s->functions <= function) |
602 | s->functions = function + 1; | |
1da177e4 LT |
603 | |
604 | p_dev->dev.bus = &pcmcia_bus_type; | |
dc109497 | 605 | p_dev->dev.parent = s->dev.dev; |
1da177e4 | 606 | p_dev->dev.release = pcmcia_release_dev; |
bd65a685 BG |
607 | bus_id_len = sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no); |
608 | ||
609 | p_dev->devname = kmalloc(6 + bus_id_len + 1, GFP_KERNEL); | |
610 | if (!p_dev->devname) | |
611 | goto err_free; | |
612 | sprintf (p_dev->devname, "pcmcia%s", p_dev->dev.bus_id); | |
1da177e4 LT |
613 | |
614 | /* compat */ | |
1da177e4 | 615 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
360b65b9 DB |
616 | |
617 | /* | |
618 | * p_dev->function_config must be the same for all card functions. | |
619 | * Note that this is serialized by the device_add_lock, so that | |
620 | * only one such struct will be created. | |
621 | */ | |
622 | list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list) | |
623 | if (p_dev->func == tmp_dev->func) { | |
624 | p_dev->function_config = tmp_dev->function_config; | |
625 | kref_get(&p_dev->function_config->ref); | |
626 | } | |
627 | ||
628 | /* Add to the list in pcmcia_bus_socket */ | |
6171b88b | 629 | list_add(&p_dev->socket_device_list, &s->devices_list); |
360b65b9 | 630 | |
1da177e4 LT |
631 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
632 | ||
360b65b9 DB |
633 | if (!p_dev->function_config) { |
634 | p_dev->function_config = kzalloc(sizeof(struct config_t), | |
635 | GFP_KERNEL); | |
636 | if (!p_dev->function_config) | |
637 | goto err_unreg; | |
638 | kref_init(&p_dev->function_config->ref); | |
639 | } | |
640 | ||
807277cb DB |
641 | printk(KERN_NOTICE "pcmcia: registering new device %s\n", |
642 | p_dev->devname); | |
643 | ||
1ad275e3 DB |
644 | pcmcia_device_query(p_dev); |
645 | ||
360b65b9 DB |
646 | if (device_register(&p_dev->dev)) |
647 | goto err_unreg; | |
1da177e4 | 648 | |
7fe908dd | 649 | mutex_unlock(&device_add_lock); |
1da177e4 LT |
650 | |
651 | return p_dev; | |
652 | ||
360b65b9 DB |
653 | err_unreg: |
654 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
655 | list_del(&p_dev->socket_device_list); | |
656 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
657 | ||
1da177e4 | 658 | err_free: |
bd65a685 | 659 | kfree(p_dev->devname); |
1da177e4 LT |
660 | kfree(p_dev); |
661 | s->device_count--; | |
662 | err_put: | |
7fe908dd | 663 | mutex_unlock(&device_add_lock); |
dc109497 | 664 | pcmcia_put_socket(s); |
1da177e4 LT |
665 | |
666 | return NULL; | |
667 | } | |
668 | ||
669 | ||
670 | static int pcmcia_card_add(struct pcmcia_socket *s) | |
671 | { | |
672 | cisinfo_t cisinfo; | |
673 | cistpl_longlink_mfc_t mfc; | |
674 | unsigned int no_funcs, i; | |
675 | int ret = 0; | |
676 | ||
677 | if (!(s->resource_setup_done)) | |
678 | return -EAGAIN; /* try again, but later... */ | |
679 | ||
de75914e DB |
680 | if (pcmcia_validate_mem(s)) |
681 | return -EAGAIN; /* try again, but later... */ | |
682 | ||
1da177e4 LT |
683 | ret = pccard_validate_cis(s, BIND_FN_ALL, &cisinfo); |
684 | if (ret || !cisinfo.Chains) { | |
685 | ds_dbg(0, "invalid CIS or invalid resources\n"); | |
686 | return -ENODEV; | |
687 | } | |
688 | ||
689 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
690 | no_funcs = mfc.nfn; | |
691 | else | |
692 | no_funcs = 1; | |
693 | ||
1da177e4 | 694 | for (i=0; i < no_funcs; i++) |
dc109497 | 695 | pcmcia_device_add(s, i); |
1da177e4 LT |
696 | |
697 | return (ret); | |
698 | } | |
699 | ||
700 | ||
1ad275e3 DB |
701 | static void pcmcia_delayed_add_pseudo_device(void *data) |
702 | { | |
dc109497 | 703 | struct pcmcia_socket *s = data; |
1ad275e3 | 704 | pcmcia_device_add(s, 0); |
b5e43913 | 705 | s->pcmcia_state.device_add_pending = 0; |
1ad275e3 DB |
706 | } |
707 | ||
e2f0b534 | 708 | static int pcmcia_requery(struct device *dev, void * _data) |
ff1fa9ef | 709 | { |
e2f0b534 DB |
710 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
711 | if (!p_dev->dev.driver) | |
712 | pcmcia_device_query(p_dev); | |
713 | ||
714 | return 0; | |
715 | } | |
716 | ||
717 | static void pcmcia_bus_rescan(struct pcmcia_socket *skt) | |
718 | { | |
719 | int no_devices=0; | |
f901b8c4 | 720 | int ret = 0; |
e2f0b534 DB |
721 | unsigned long flags; |
722 | ||
7fe908dd | 723 | /* must be called with skt_mutex held */ |
e2f0b534 | 724 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
dc109497 | 725 | if (list_empty(&skt->devices_list)) |
e2f0b534 DB |
726 | no_devices=1; |
727 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
728 | ||
729 | /* if no devices were added for this socket yet because of | |
730 | * missing resource information or other trouble, we need to | |
731 | * do this now. */ | |
732 | if (no_devices) { | |
f901b8c4 | 733 | ret = pcmcia_card_add(skt); |
e2f0b534 DB |
734 | if (ret) |
735 | return; | |
736 | } | |
737 | ||
738 | /* some device information might have changed because of a CIS | |
739 | * update or because we can finally read it correctly... so | |
740 | * determine it again, overwriting old values if necessary. */ | |
741 | bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery); | |
742 | ||
743 | /* we re-scan all devices, not just the ones connected to this | |
744 | * socket. This does not matter, though. */ | |
f901b8c4 DB |
745 | ret = bus_rescan_devices(&pcmcia_bus_type); |
746 | if (ret) | |
747 | printk(KERN_INFO "pcmcia: bus_rescan_devices failed\n"); | |
ff1fa9ef | 748 | } |
1ad275e3 DB |
749 | |
750 | static inline int pcmcia_devmatch(struct pcmcia_device *dev, | |
751 | struct pcmcia_device_id *did) | |
752 | { | |
753 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) { | |
754 | if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id)) | |
755 | return 0; | |
756 | } | |
757 | ||
758 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) { | |
759 | if ((!dev->has_card_id) || (dev->card_id != did->card_id)) | |
760 | return 0; | |
761 | } | |
762 | ||
763 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) { | |
764 | if (dev->func != did->function) | |
765 | return 0; | |
766 | } | |
767 | ||
768 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) { | |
769 | if (!dev->prod_id[0]) | |
770 | return 0; | |
771 | if (strcmp(did->prod_id[0], dev->prod_id[0])) | |
772 | return 0; | |
773 | } | |
774 | ||
775 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) { | |
776 | if (!dev->prod_id[1]) | |
777 | return 0; | |
778 | if (strcmp(did->prod_id[1], dev->prod_id[1])) | |
779 | return 0; | |
780 | } | |
781 | ||
782 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) { | |
783 | if (!dev->prod_id[2]) | |
784 | return 0; | |
785 | if (strcmp(did->prod_id[2], dev->prod_id[2])) | |
786 | return 0; | |
787 | } | |
788 | ||
789 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) { | |
790 | if (!dev->prod_id[3]) | |
791 | return 0; | |
792 | if (strcmp(did->prod_id[3], dev->prod_id[3])) | |
793 | return 0; | |
794 | } | |
795 | ||
796 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { | |
1ad275e3 DB |
797 | if (dev->device_no != did->device_no) |
798 | return 0; | |
799 | } | |
800 | ||
801 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { | |
802 | if ((!dev->has_func_id) || (dev->func_id != did->func_id)) | |
803 | return 0; | |
804 | ||
805 | /* if this is a pseudo-multi-function device, | |
806 | * we need explicit matches */ | |
807 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) | |
808 | return 0; | |
809 | if (dev->device_no) | |
810 | return 0; | |
811 | ||
812 | /* also, FUNC_ID matching needs to be activated by userspace | |
813 | * after it has re-checked that there is no possible module | |
814 | * with a prod_id/manf_id/card_id match. | |
815 | */ | |
816 | if (!dev->allow_func_id_match) | |
817 | return 0; | |
818 | } | |
819 | ||
ea7b3882 | 820 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { |
daa9517d DB |
821 | if (!dev->socket->fake_cis) |
822 | pcmcia_load_firmware(dev, did->cisfile); | |
823 | ||
824 | if (!dev->socket->fake_cis) | |
ea7b3882 | 825 | return 0; |
ea7b3882 DB |
826 | } |
827 | ||
f602ff7e DB |
828 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { |
829 | int i; | |
830 | for (i=0; i<4; i++) | |
831 | if (dev->prod_id[i]) | |
832 | return 0; | |
833 | if (dev->has_manf_id || dev->has_card_id || dev->has_func_id) | |
834 | return 0; | |
835 | } | |
836 | ||
1ad275e3 DB |
837 | dev->dev.driver_data = (void *) did; |
838 | ||
839 | return 1; | |
840 | } | |
841 | ||
842 | ||
1da177e4 LT |
843 | static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) { |
844 | struct pcmcia_device * p_dev = to_pcmcia_dev(dev); | |
845 | struct pcmcia_driver * p_drv = to_pcmcia_drv(drv); | |
1ad275e3 | 846 | struct pcmcia_device_id *did = p_drv->id_table; |
1da177e4 | 847 | |
0e0fad8f | 848 | #ifdef CONFIG_PCMCIA_IOCTL |
1da177e4 LT |
849 | /* matching by cardmgr */ |
850 | if (p_dev->cardmgr == p_drv) | |
851 | return 1; | |
0e0fad8f | 852 | #endif |
1da177e4 | 853 | |
1ad275e3 DB |
854 | while (did && did->match_flags) { |
855 | if (pcmcia_devmatch(p_dev, did)) | |
856 | return 1; | |
857 | did++; | |
858 | } | |
859 | ||
1da177e4 LT |
860 | return 0; |
861 | } | |
862 | ||
840c2ac5 DB |
863 | #ifdef CONFIG_HOTPLUG |
864 | ||
312c004d KS |
865 | static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, |
866 | char *buffer, int buffer_size) | |
840c2ac5 DB |
867 | { |
868 | struct pcmcia_device *p_dev; | |
869 | int i, length = 0; | |
870 | u32 hash[4] = { 0, 0, 0, 0}; | |
871 | ||
872 | if (!dev) | |
873 | return -ENODEV; | |
874 | ||
875 | p_dev = to_pcmcia_dev(dev); | |
876 | ||
877 | /* calculate hashes */ | |
878 | for (i=0; i<4; i++) { | |
879 | if (!p_dev->prod_id[i]) | |
880 | continue; | |
881 | hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); | |
882 | } | |
883 | ||
884 | i = 0; | |
885 | ||
312c004d KS |
886 | if (add_uevent_var(envp, num_envp, &i, |
887 | buffer, buffer_size, &length, | |
888 | "SOCKET_NO=%u", | |
889 | p_dev->socket->sock)) | |
840c2ac5 DB |
890 | return -ENOMEM; |
891 | ||
312c004d KS |
892 | if (add_uevent_var(envp, num_envp, &i, |
893 | buffer, buffer_size, &length, | |
894 | "DEVICE_NO=%02X", | |
895 | p_dev->device_no)) | |
840c2ac5 DB |
896 | return -ENOMEM; |
897 | ||
312c004d KS |
898 | if (add_uevent_var(envp, num_envp, &i, |
899 | buffer, buffer_size, &length, | |
900 | "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
901 | "pa%08Xpb%08Xpc%08Xpd%08X", | |
902 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
903 | p_dev->has_card_id ? p_dev->card_id : 0, | |
904 | p_dev->has_func_id ? p_dev->func_id : 0, | |
905 | p_dev->func, | |
906 | p_dev->device_no, | |
907 | hash[0], | |
908 | hash[1], | |
909 | hash[2], | |
910 | hash[3])) | |
840c2ac5 DB |
911 | return -ENOMEM; |
912 | ||
913 | envp[i] = NULL; | |
914 | ||
915 | return 0; | |
916 | } | |
917 | ||
918 | #else | |
919 | ||
312c004d | 920 | static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, |
840c2ac5 DB |
921 | char *buffer, int buffer_size) |
922 | { | |
923 | return -ENODEV; | |
924 | } | |
925 | ||
926 | #endif | |
927 | ||
1da177e4 LT |
928 | /************************ per-device sysfs output ***************************/ |
929 | ||
930 | #define pcmcia_device_attr(field, test, format) \ | |
e404e274 | 931 | static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
932 | { \ |
933 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
934 | return p_dev->test ? sprintf (buf, format, p_dev->field) : -ENODEV; \ | |
935 | } | |
936 | ||
937 | #define pcmcia_device_stringattr(name, field) \ | |
e404e274 | 938 | static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
939 | { \ |
940 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
941 | return p_dev->field ? sprintf (buf, "%s\n", p_dev->field) : -ENODEV; \ | |
942 | } | |
943 | ||
944 | pcmcia_device_attr(func, socket, "0x%02x\n"); | |
945 | pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); | |
946 | pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); | |
947 | pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); | |
948 | pcmcia_device_stringattr(prod_id1, prod_id[0]); | |
949 | pcmcia_device_stringattr(prod_id2, prod_id[1]); | |
950 | pcmcia_device_stringattr(prod_id3, prod_id[2]); | |
951 | pcmcia_device_stringattr(prod_id4, prod_id[3]); | |
952 | ||
db1019ca DB |
953 | |
954 | static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf) | |
955 | { | |
956 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
957 | ||
f6fbe01a | 958 | if (p_dev->suspended) |
db1019ca DB |
959 | return sprintf(buf, "off\n"); |
960 | else | |
961 | return sprintf(buf, "on\n"); | |
962 | } | |
963 | ||
964 | static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr, | |
965 | const char *buf, size_t count) | |
966 | { | |
967 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
968 | int ret = 0; | |
969 | ||
970 | if (!count) | |
971 | return -EINVAL; | |
972 | ||
f6fbe01a | 973 | if ((!p_dev->suspended) && !strncmp(buf, "off", 3)) |
db1019ca | 974 | ret = dpm_runtime_suspend(dev, PMSG_SUSPEND); |
f6fbe01a | 975 | else if (p_dev->suspended && !strncmp(buf, "on", 2)) |
db1019ca DB |
976 | dpm_runtime_resume(dev); |
977 | ||
978 | return ret ? ret : count; | |
979 | } | |
980 | ||
981 | ||
3704511b | 982 | static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) |
3248ff43 DB |
983 | { |
984 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
985 | int i; | |
986 | u32 hash[4] = { 0, 0, 0, 0}; | |
987 | ||
988 | /* calculate hashes */ | |
989 | for (i=0; i<4; i++) { | |
990 | if (!p_dev->prod_id[i]) | |
991 | continue; | |
992 | hash[i] = crc32(0,p_dev->prod_id[i],strlen(p_dev->prod_id[i])); | |
993 | } | |
994 | return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
995 | "pa%08Xpb%08Xpc%08Xpd%08X\n", | |
996 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
997 | p_dev->has_card_id ? p_dev->card_id : 0, | |
998 | p_dev->has_func_id ? p_dev->func_id : 0, | |
999 | p_dev->func, p_dev->device_no, | |
1000 | hash[0], hash[1], hash[2], hash[3]); | |
1001 | } | |
a5b55778 | 1002 | |
3248ff43 DB |
1003 | static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, |
1004 | struct device_attribute *attr, const char *buf, size_t count) | |
a5b55778 DB |
1005 | { |
1006 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
f901b8c4 | 1007 | int ret; |
db1019ca DB |
1008 | |
1009 | if (!count) | |
1010 | return -EINVAL; | |
a5b55778 | 1011 | |
7fe908dd | 1012 | mutex_lock(&p_dev->socket->skt_mutex); |
a5b55778 | 1013 | p_dev->allow_func_id_match = 1; |
7fe908dd | 1014 | mutex_unlock(&p_dev->socket->skt_mutex); |
a5b55778 | 1015 | |
f901b8c4 DB |
1016 | ret = bus_rescan_devices(&pcmcia_bus_type); |
1017 | if (ret) | |
1018 | printk(KERN_INFO "pcmcia: bus_rescan_devices failed after " | |
1019 | "allowing func_id matches\n"); | |
a5b55778 DB |
1020 | |
1021 | return count; | |
1022 | } | |
1023 | ||
1da177e4 LT |
1024 | static struct device_attribute pcmcia_dev_attrs[] = { |
1025 | __ATTR(function, 0444, func_show, NULL), | |
db1019ca | 1026 | __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state), |
1da177e4 LT |
1027 | __ATTR_RO(func_id), |
1028 | __ATTR_RO(manf_id), | |
1029 | __ATTR_RO(card_id), | |
1030 | __ATTR_RO(prod_id1), | |
1031 | __ATTR_RO(prod_id2), | |
1032 | __ATTR_RO(prod_id3), | |
1033 | __ATTR_RO(prod_id4), | |
3248ff43 | 1034 | __ATTR_RO(modalias), |
a5b55778 | 1035 | __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), |
1da177e4 LT |
1036 | __ATTR_NULL, |
1037 | }; | |
1038 | ||
8e9e793d DB |
1039 | /* PM support, also needed for reset */ |
1040 | ||
1041 | static int pcmcia_dev_suspend(struct device * dev, pm_message_t state) | |
1042 | { | |
1043 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1044 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1045 | int ret = 0; |
8e9e793d DB |
1046 | |
1047 | if (dev->driver) | |
1048 | p_drv = to_pcmcia_drv(dev->driver); | |
1049 | ||
e2d40963 DB |
1050 | if (!p_drv) |
1051 | goto out; | |
1052 | ||
1053 | if (p_drv->suspend) { | |
8661bb5b DB |
1054 | ret = p_drv->suspend(p_dev); |
1055 | if (ret) | |
f6fbe01a | 1056 | goto out; |
8661bb5b | 1057 | } |
8e9e793d | 1058 | |
e2d40963 DB |
1059 | if (p_dev->device_no == p_dev->func) |
1060 | pcmcia_release_configuration(p_dev); | |
1061 | ||
f6fbe01a DB |
1062 | out: |
1063 | if (!ret) | |
1064 | p_dev->suspended = 1; | |
1065 | return ret; | |
8e9e793d DB |
1066 | } |
1067 | ||
1068 | ||
1069 | static int pcmcia_dev_resume(struct device * dev) | |
1070 | { | |
1071 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1072 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1073 | int ret = 0; |
8e9e793d DB |
1074 | |
1075 | if (dev->driver) | |
1076 | p_drv = to_pcmcia_drv(dev->driver); | |
1077 | ||
e2d40963 DB |
1078 | if (!p_drv) |
1079 | goto out; | |
1080 | ||
1081 | if (p_dev->device_no == p_dev->func) { | |
1082 | ret = pcmcia_request_configuration(p_dev, &p_dev->conf); | |
1083 | if (ret) | |
1084 | goto out; | |
8661bb5b | 1085 | } |
8e9e793d | 1086 | |
e2d40963 DB |
1087 | if (p_drv->resume) |
1088 | ret = p_drv->resume(p_dev); | |
1089 | ||
f6fbe01a DB |
1090 | out: |
1091 | if (!ret) | |
1092 | p_dev->suspended = 0; | |
1093 | return ret; | |
8e9e793d DB |
1094 | } |
1095 | ||
1096 | ||
1097 | static int pcmcia_bus_suspend_callback(struct device *dev, void * _data) | |
1098 | { | |
1099 | struct pcmcia_socket *skt = _data; | |
1100 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1101 | ||
1102 | if (p_dev->socket != skt) | |
1103 | return 0; | |
1104 | ||
1105 | return dpm_runtime_suspend(dev, PMSG_SUSPEND); | |
1106 | } | |
1107 | ||
1108 | static int pcmcia_bus_resume_callback(struct device *dev, void * _data) | |
1109 | { | |
1110 | struct pcmcia_socket *skt = _data; | |
1111 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1112 | ||
1113 | if (p_dev->socket != skt) | |
1114 | return 0; | |
1115 | ||
1116 | dpm_runtime_resume(dev); | |
1117 | ||
1118 | return 0; | |
1119 | } | |
1120 | ||
1121 | static int pcmcia_bus_resume(struct pcmcia_socket *skt) | |
1122 | { | |
1123 | bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback); | |
1124 | return 0; | |
1125 | } | |
1126 | ||
1127 | static int pcmcia_bus_suspend(struct pcmcia_socket *skt) | |
1128 | { | |
1129 | if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt, | |
1130 | pcmcia_bus_suspend_callback)) { | |
1131 | pcmcia_bus_resume(skt); | |
1132 | return -EIO; | |
1133 | } | |
1134 | return 0; | |
1135 | } | |
1136 | ||
1da177e4 | 1137 | |
1da177e4 LT |
1138 | /*====================================================================== |
1139 | ||
1140 | The card status event handler. | |
1141 | ||
1142 | ======================================================================*/ | |
1143 | ||
1da177e4 LT |
1144 | /* Normally, the event is passed to individual drivers after |
1145 | * informing userspace. Only for CS_EVENT_CARD_REMOVAL this | |
1146 | * is inversed to maintain historic compatibility. | |
1147 | */ | |
1148 | ||
1149 | static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) | |
1150 | { | |
dc109497 | 1151 | struct pcmcia_socket *s = pcmcia_get_socket(skt); |
1da177e4 | 1152 | |
1617406a FM |
1153 | if (!s) { |
1154 | printk(KERN_ERR "PCMCIA obtaining reference to socket %p " \ | |
1155 | "failed, event 0x%x lost!\n", skt, event); | |
1156 | return -ENODEV; | |
1157 | } | |
1158 | ||
1da177e4 | 1159 | ds_dbg(1, "ds_event(0x%06x, %d, 0x%p)\n", |
dc109497 | 1160 | event, priority, skt); |
1da177e4 | 1161 | |
f8cfa618 | 1162 | switch (event) { |
1da177e4 | 1163 | case CS_EVENT_CARD_REMOVAL: |
b5e43913 | 1164 | s->pcmcia_state.present = 0; |
d6ff5a85 | 1165 | pcmcia_card_remove(skt, NULL); |
dc109497 | 1166 | handle_event(skt, event); |
1da177e4 | 1167 | break; |
f8cfa618 | 1168 | |
1da177e4 | 1169 | case CS_EVENT_CARD_INSERTION: |
b5e43913 | 1170 | s->pcmcia_state.present = 1; |
1da177e4 | 1171 | pcmcia_card_add(skt); |
dc109497 | 1172 | handle_event(skt, event); |
1da177e4 LT |
1173 | break; |
1174 | ||
1175 | case CS_EVENT_EJECTION_REQUEST: | |
1da177e4 LT |
1176 | break; |
1177 | ||
8e9e793d DB |
1178 | case CS_EVENT_PM_SUSPEND: |
1179 | case CS_EVENT_PM_RESUME: | |
1180 | case CS_EVENT_RESET_PHYSICAL: | |
1181 | case CS_EVENT_CARD_RESET: | |
1da177e4 | 1182 | default: |
dc109497 | 1183 | handle_event(skt, event); |
1da177e4 LT |
1184 | break; |
1185 | } | |
1186 | ||
dc109497 DB |
1187 | pcmcia_put_socket(s); |
1188 | ||
1da177e4 LT |
1189 | return 0; |
1190 | } /* ds_event */ | |
1191 | ||
1192 | ||
9940ec36 DB |
1193 | struct pcmcia_device * pcmcia_dev_present(struct pcmcia_device *_p_dev) |
1194 | { | |
1195 | struct pcmcia_device *p_dev; | |
1196 | struct pcmcia_device *ret = NULL; | |
1197 | ||
1198 | p_dev = pcmcia_get_dev(_p_dev); | |
1199 | if (!p_dev) | |
1200 | return NULL; | |
1201 | ||
1202 | if (!p_dev->socket->pcmcia_state.present) | |
1203 | goto out; | |
1204 | ||
1205 | if (p_dev->_removed) | |
1206 | goto out; | |
1207 | ||
1208 | if (p_dev->suspended) | |
1209 | goto out; | |
1210 | ||
1211 | ret = p_dev; | |
1212 | out: | |
1213 | pcmcia_put_dev(p_dev); | |
1214 | return ret; | |
1215 | } | |
1216 | EXPORT_SYMBOL(pcmcia_dev_present); | |
1217 | ||
1218 | ||
90c6cdd1 DB |
1219 | static struct pcmcia_callback pcmcia_bus_callback = { |
1220 | .owner = THIS_MODULE, | |
1221 | .event = ds_event, | |
1222 | .requery = pcmcia_bus_rescan, | |
8e9e793d DB |
1223 | .suspend = pcmcia_bus_suspend, |
1224 | .resume = pcmcia_bus_resume, | |
90c6cdd1 DB |
1225 | }; |
1226 | ||
d8539d81 DT |
1227 | static int __devinit pcmcia_bus_add_socket(struct class_device *class_dev, |
1228 | struct class_interface *class_intf) | |
1da177e4 LT |
1229 | { |
1230 | struct pcmcia_socket *socket = class_get_devdata(class_dev); | |
1da177e4 LT |
1231 | int ret; |
1232 | ||
dc109497 DB |
1233 | socket = pcmcia_get_socket(socket); |
1234 | if (!socket) { | |
1da177e4 | 1235 | printk(KERN_ERR "PCMCIA obtaining reference to socket %p failed\n", socket); |
1da177e4 LT |
1236 | return -ENODEV; |
1237 | } | |
1238 | ||
1da177e4 LT |
1239 | /* |
1240 | * Ugly. But we want to wait for the socket threads to have started up. | |
1241 | * We really should let the drivers themselves drive some of this.. | |
1242 | */ | |
1243 | msleep(250); | |
1244 | ||
e7a480d2 | 1245 | #ifdef CONFIG_PCMCIA_IOCTL |
dc109497 | 1246 | init_waitqueue_head(&socket->queue); |
e7a480d2 | 1247 | #endif |
dc109497 DB |
1248 | INIT_LIST_HEAD(&socket->devices_list); |
1249 | INIT_WORK(&socket->device_add, pcmcia_delayed_add_pseudo_device, socket); | |
1250 | memset(&socket->pcmcia_state, 0, sizeof(u8)); | |
1251 | socket->device_count = 0; | |
1da177e4 | 1252 | |
90c6cdd1 | 1253 | ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback); |
1da177e4 LT |
1254 | if (ret) { |
1255 | printk(KERN_ERR "PCMCIA registration PCCard core failed for socket %p\n", socket); | |
dc109497 | 1256 | pcmcia_put_socket(socket); |
1da177e4 LT |
1257 | return (ret); |
1258 | } | |
1259 | ||
1260 | return 0; | |
1261 | } | |
1262 | ||
d8539d81 DT |
1263 | static void pcmcia_bus_remove_socket(struct class_device *class_dev, |
1264 | struct class_interface *class_intf) | |
1da177e4 LT |
1265 | { |
1266 | struct pcmcia_socket *socket = class_get_devdata(class_dev); | |
1267 | ||
dc109497 | 1268 | if (!socket) |
1da177e4 LT |
1269 | return; |
1270 | ||
dc109497 | 1271 | socket->pcmcia_state.dead = 1; |
1da177e4 LT |
1272 | pccard_register_pcmcia(socket, NULL); |
1273 | ||
dfbc9e9d DR |
1274 | /* unregister any unbound devices */ |
1275 | pcmcia_card_remove(socket, NULL); | |
1276 | ||
dc109497 | 1277 | pcmcia_put_socket(socket); |
1da177e4 LT |
1278 | |
1279 | return; | |
1280 | } | |
1281 | ||
1282 | ||
1283 | /* the pcmcia_bus_interface is used to handle pcmcia socket devices */ | |
1284 | static struct class_interface pcmcia_bus_interface = { | |
1285 | .class = &pcmcia_socket_class, | |
1286 | .add = &pcmcia_bus_add_socket, | |
1287 | .remove = &pcmcia_bus_remove_socket, | |
1288 | }; | |
1289 | ||
1290 | ||
e7a480d2 | 1291 | struct bus_type pcmcia_bus_type = { |
1da177e4 | 1292 | .name = "pcmcia", |
312c004d | 1293 | .uevent = pcmcia_bus_uevent, |
1da177e4 LT |
1294 | .match = pcmcia_bus_match, |
1295 | .dev_attrs = pcmcia_dev_attrs, | |
1d0baa3a RK |
1296 | .probe = pcmcia_device_probe, |
1297 | .remove = pcmcia_device_remove, | |
8e9e793d DB |
1298 | .suspend = pcmcia_dev_suspend, |
1299 | .resume = pcmcia_dev_resume, | |
1da177e4 | 1300 | }; |
1da177e4 LT |
1301 | |
1302 | ||
1303 | static int __init init_pcmcia_bus(void) | |
1304 | { | |
ace7d477 RD |
1305 | int ret; |
1306 | ||
1da177e4 LT |
1307 | spin_lock_init(&pcmcia_dev_list_lock); |
1308 | ||
ace7d477 RD |
1309 | ret = bus_register(&pcmcia_bus_type); |
1310 | if (ret < 0) { | |
1311 | printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret); | |
1312 | return ret; | |
1313 | } | |
1314 | ret = class_interface_register(&pcmcia_bus_interface); | |
1315 | if (ret < 0) { | |
1316 | printk(KERN_WARNING | |
1317 | "pcmcia: class_interface_register error: %d\n", ret); | |
1318 | bus_unregister(&pcmcia_bus_type); | |
1319 | return ret; | |
1320 | } | |
1da177e4 | 1321 | |
e7a480d2 | 1322 | pcmcia_setup_ioctl(); |
1da177e4 LT |
1323 | |
1324 | return 0; | |
1325 | } | |
1326 | fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that | |
1327 | * pcmcia_socket_class is already registered */ | |
1328 | ||
1329 | ||
1330 | static void __exit exit_pcmcia_bus(void) | |
1331 | { | |
e7a480d2 | 1332 | pcmcia_cleanup_ioctl(); |
1da177e4 | 1333 | |
e7a480d2 | 1334 | class_interface_unregister(&pcmcia_bus_interface); |
1da177e4 LT |
1335 | |
1336 | bus_unregister(&pcmcia_bus_type); | |
1337 | } | |
1338 | module_exit(exit_pcmcia_bus); | |
1339 | ||
1340 | ||
1da177e4 | 1341 | MODULE_ALIAS("ds"); |