Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * ds.c -- 16-bit PCMCIA core support | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * The initial developer of the original code is David A. Hinds | |
9 | * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds | |
10 | * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. | |
11 | * | |
12 | * (C) 1999 David A. Hinds | |
3b659fb8 | 13 | * (C) 2003 - 2005 Dominik Brodowski |
1da177e4 LT |
14 | */ |
15 | ||
16 | #include <linux/config.h> | |
3b659fb8 | 17 | #include <linux/kernel.h> |
1da177e4 | 18 | #include <linux/module.h> |
1da177e4 | 19 | #include <linux/init.h> |
1da177e4 | 20 | #include <linux/errno.h> |
1da177e4 LT |
21 | #include <linux/list.h> |
22 | #include <linux/delay.h> | |
1da177e4 | 23 | #include <linux/workqueue.h> |
840c2ac5 | 24 | #include <linux/crc32.h> |
daa9517d | 25 | #include <linux/firmware.h> |
1da177e4 | 26 | |
1da177e4 | 27 | #define IN_CARD_SERVICES |
1da177e4 LT |
28 | #include <pcmcia/cs_types.h> |
29 | #include <pcmcia/cs.h> | |
1da177e4 LT |
30 | #include <pcmcia/cistpl.h> |
31 | #include <pcmcia/ds.h> | |
32 | #include <pcmcia/ss.h> | |
33 | ||
34 | #include "cs_internal.h" | |
e7a480d2 | 35 | #include "ds_internal.h" |
1da177e4 LT |
36 | |
37 | /*====================================================================*/ | |
38 | ||
39 | /* Module parameters */ | |
40 | ||
41 | MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>"); | |
42 | MODULE_DESCRIPTION("PCMCIA Driver Services"); | |
43 | MODULE_LICENSE("GPL"); | |
44 | ||
45 | #ifdef DEBUG | |
e7a480d2 | 46 | int ds_pc_debug; |
1da177e4 LT |
47 | |
48 | module_param_named(pc_debug, ds_pc_debug, int, 0644); | |
49 | ||
50 | #define ds_dbg(lvl, fmt, arg...) do { \ | |
51 | if (ds_pc_debug > (lvl)) \ | |
52 | printk(KERN_DEBUG "ds: " fmt , ## arg); \ | |
53 | } while (0) | |
54 | #else | |
55 | #define ds_dbg(lvl, fmt, arg...) do { } while (0) | |
56 | #endif | |
57 | ||
e7a480d2 | 58 | spinlock_t pcmcia_dev_list_lock; |
1da177e4 | 59 | |
1da177e4 LT |
60 | /*====================================================================*/ |
61 | ||
62 | /* code which was in cs.c before */ | |
63 | ||
64 | /* String tables for error messages */ | |
65 | ||
66 | typedef struct lookup_t { | |
67 | int key; | |
68 | char *msg; | |
69 | } lookup_t; | |
70 | ||
71 | static const lookup_t error_table[] = { | |
72 | { CS_SUCCESS, "Operation succeeded" }, | |
73 | { CS_BAD_ADAPTER, "Bad adapter" }, | |
74 | { CS_BAD_ATTRIBUTE, "Bad attribute", }, | |
75 | { CS_BAD_BASE, "Bad base address" }, | |
76 | { CS_BAD_EDC, "Bad EDC" }, | |
77 | { CS_BAD_IRQ, "Bad IRQ" }, | |
78 | { CS_BAD_OFFSET, "Bad offset" }, | |
79 | { CS_BAD_PAGE, "Bad page number" }, | |
80 | { CS_READ_FAILURE, "Read failure" }, | |
81 | { CS_BAD_SIZE, "Bad size" }, | |
82 | { CS_BAD_SOCKET, "Bad socket" }, | |
83 | { CS_BAD_TYPE, "Bad type" }, | |
84 | { CS_BAD_VCC, "Bad Vcc" }, | |
85 | { CS_BAD_VPP, "Bad Vpp" }, | |
86 | { CS_BAD_WINDOW, "Bad window" }, | |
87 | { CS_WRITE_FAILURE, "Write failure" }, | |
88 | { CS_NO_CARD, "No card present" }, | |
89 | { CS_UNSUPPORTED_FUNCTION, "Usupported function" }, | |
90 | { CS_UNSUPPORTED_MODE, "Unsupported mode" }, | |
91 | { CS_BAD_SPEED, "Bad speed" }, | |
92 | { CS_BUSY, "Resource busy" }, | |
93 | { CS_GENERAL_FAILURE, "General failure" }, | |
94 | { CS_WRITE_PROTECTED, "Write protected" }, | |
95 | { CS_BAD_ARG_LENGTH, "Bad argument length" }, | |
96 | { CS_BAD_ARGS, "Bad arguments" }, | |
97 | { CS_CONFIGURATION_LOCKED, "Configuration locked" }, | |
98 | { CS_IN_USE, "Resource in use" }, | |
99 | { CS_NO_MORE_ITEMS, "No more items" }, | |
100 | { CS_OUT_OF_RESOURCE, "Out of resource" }, | |
101 | { CS_BAD_HANDLE, "Bad handle" }, | |
102 | { CS_BAD_TUPLE, "Bad CIS tuple" } | |
103 | }; | |
104 | ||
105 | ||
106 | static const lookup_t service_table[] = { | |
107 | { AccessConfigurationRegister, "AccessConfigurationRegister" }, | |
108 | { AddSocketServices, "AddSocketServices" }, | |
109 | { AdjustResourceInfo, "AdjustResourceInfo" }, | |
110 | { CheckEraseQueue, "CheckEraseQueue" }, | |
111 | { CloseMemory, "CloseMemory" }, | |
112 | { DeregisterClient, "DeregisterClient" }, | |
113 | { DeregisterEraseQueue, "DeregisterEraseQueue" }, | |
114 | { GetCardServicesInfo, "GetCardServicesInfo" }, | |
115 | { GetClientInfo, "GetClientInfo" }, | |
116 | { GetConfigurationInfo, "GetConfigurationInfo" }, | |
117 | { GetEventMask, "GetEventMask" }, | |
118 | { GetFirstClient, "GetFirstClient" }, | |
119 | { GetFirstRegion, "GetFirstRegion" }, | |
120 | { GetFirstTuple, "GetFirstTuple" }, | |
121 | { GetNextClient, "GetNextClient" }, | |
122 | { GetNextRegion, "GetNextRegion" }, | |
123 | { GetNextTuple, "GetNextTuple" }, | |
124 | { GetStatus, "GetStatus" }, | |
125 | { GetTupleData, "GetTupleData" }, | |
126 | { MapMemPage, "MapMemPage" }, | |
127 | { ModifyConfiguration, "ModifyConfiguration" }, | |
128 | { ModifyWindow, "ModifyWindow" }, | |
129 | { OpenMemory, "OpenMemory" }, | |
130 | { ParseTuple, "ParseTuple" }, | |
131 | { ReadMemory, "ReadMemory" }, | |
132 | { RegisterClient, "RegisterClient" }, | |
133 | { RegisterEraseQueue, "RegisterEraseQueue" }, | |
134 | { RegisterMTD, "RegisterMTD" }, | |
135 | { ReleaseConfiguration, "ReleaseConfiguration" }, | |
136 | { ReleaseIO, "ReleaseIO" }, | |
137 | { ReleaseIRQ, "ReleaseIRQ" }, | |
138 | { ReleaseWindow, "ReleaseWindow" }, | |
139 | { RequestConfiguration, "RequestConfiguration" }, | |
140 | { RequestIO, "RequestIO" }, | |
141 | { RequestIRQ, "RequestIRQ" }, | |
142 | { RequestSocketMask, "RequestSocketMask" }, | |
143 | { RequestWindow, "RequestWindow" }, | |
144 | { ResetCard, "ResetCard" }, | |
145 | { SetEventMask, "SetEventMask" }, | |
146 | { ValidateCIS, "ValidateCIS" }, | |
147 | { WriteMemory, "WriteMemory" }, | |
148 | { BindDevice, "BindDevice" }, | |
149 | { BindMTD, "BindMTD" }, | |
150 | { ReportError, "ReportError" }, | |
151 | { SuspendCard, "SuspendCard" }, | |
152 | { ResumeCard, "ResumeCard" }, | |
153 | { EjectCard, "EjectCard" }, | |
154 | { InsertCard, "InsertCard" }, | |
155 | { ReplaceCIS, "ReplaceCIS" } | |
156 | }; | |
157 | ||
158 | ||
2bc5a9bd | 159 | static int pcmcia_report_error(struct pcmcia_device *p_dev, error_info_t *err) |
1da177e4 LT |
160 | { |
161 | int i; | |
162 | char *serv; | |
163 | ||
2bc5a9bd | 164 | if (!p_dev) |
1da177e4 | 165 | printk(KERN_NOTICE); |
2bc5a9bd | 166 | else |
1da177e4 | 167 | printk(KERN_NOTICE "%s: ", p_dev->dev.bus_id); |
1da177e4 LT |
168 | |
169 | for (i = 0; i < ARRAY_SIZE(service_table); i++) | |
170 | if (service_table[i].key == err->func) | |
171 | break; | |
172 | if (i < ARRAY_SIZE(service_table)) | |
173 | serv = service_table[i].msg; | |
174 | else | |
175 | serv = "Unknown service number"; | |
176 | ||
177 | for (i = 0; i < ARRAY_SIZE(error_table); i++) | |
178 | if (error_table[i].key == err->retcode) | |
179 | break; | |
180 | if (i < ARRAY_SIZE(error_table)) | |
181 | printk("%s: %s\n", serv, error_table[i].msg); | |
182 | else | |
183 | printk("%s: Unknown error code %#x\n", serv, err->retcode); | |
184 | ||
185 | return CS_SUCCESS; | |
186 | } /* report_error */ | |
1da177e4 LT |
187 | |
188 | /* end of code which was in cs.c before */ | |
189 | ||
190 | /*======================================================================*/ | |
191 | ||
2bc5a9bd | 192 | void cs_error(struct pcmcia_device *p_dev, int func, int ret) |
1da177e4 LT |
193 | { |
194 | error_info_t err = { func, ret }; | |
2bc5a9bd | 195 | pcmcia_report_error(p_dev, &err); |
1da177e4 LT |
196 | } |
197 | EXPORT_SYMBOL(cs_error); | |
198 | ||
23a83bfe DB |
199 | |
200 | static void pcmcia_check_driver(struct pcmcia_driver *p_drv) | |
201 | { | |
202 | struct pcmcia_device_id *did = p_drv->id_table; | |
203 | unsigned int i; | |
204 | u32 hash; | |
205 | ||
f8cfa618 | 206 | if (!p_drv->probe || !p_drv->remove) |
ba5bb6b5 PR |
207 | printk(KERN_DEBUG "pcmcia: %s lacks a requisite callback " |
208 | "function\n", p_drv->drv.name); | |
1e212f36 | 209 | |
23a83bfe DB |
210 | while (did && did->match_flags) { |
211 | for (i=0; i<4; i++) { | |
212 | if (!did->prod_id[i]) | |
213 | continue; | |
214 | ||
215 | hash = crc32(0, did->prod_id[i], strlen(did->prod_id[i])); | |
216 | if (hash == did->prod_id_hash[i]) | |
217 | continue; | |
218 | ||
219 | printk(KERN_DEBUG "pcmcia: %s: invalid hash for " | |
220 | "product string \"%s\": is 0x%x, should " | |
221 | "be 0x%x\n", p_drv->drv.name, did->prod_id[i], | |
222 | did->prod_id_hash[i], hash); | |
5085cb26 DB |
223 | printk(KERN_DEBUG "pcmcia: see " |
224 | "Documentation/pcmcia/devicetable.txt for " | |
225 | "details\n"); | |
23a83bfe DB |
226 | } |
227 | did++; | |
228 | } | |
229 | ||
230 | return; | |
231 | } | |
232 | ||
daa9517d DB |
233 | |
234 | #ifdef CONFIG_PCMCIA_LOAD_CIS | |
235 | ||
236 | /** | |
237 | * pcmcia_load_firmware - load CIS from userspace if device-provided is broken | |
238 | * @dev - the pcmcia device which needs a CIS override | |
239 | * @filename - requested filename in /lib/firmware/cis/ | |
240 | * | |
241 | * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if | |
242 | * the one provided by the card is broken. The firmware files reside in | |
243 | * /lib/firmware/cis/ in userspace. | |
244 | */ | |
245 | static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
246 | { | |
247 | struct pcmcia_socket *s = dev->socket; | |
248 | const struct firmware *fw; | |
249 | char path[20]; | |
250 | int ret=-ENOMEM; | |
251 | cisdump_t *cis; | |
252 | ||
253 | if (!filename) | |
254 | return -EINVAL; | |
255 | ||
256 | ds_dbg(1, "trying to load firmware %s\n", filename); | |
257 | ||
258 | if (strlen(filename) > 14) | |
259 | return -EINVAL; | |
260 | ||
261 | snprintf(path, 20, "%s", filename); | |
262 | ||
263 | if (request_firmware(&fw, path, &dev->dev) == 0) { | |
264 | if (fw->size >= CISTPL_MAX_CIS_SIZE) | |
265 | goto release; | |
266 | ||
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 | ||
346 | static void pcmcia_release_dev(struct device *dev) | |
347 | { | |
348 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
349 | ds_dbg(1, "releasing dev %p\n", p_dev); | |
dc109497 | 350 | pcmcia_put_socket(p_dev->socket); |
bd65a685 | 351 | kfree(p_dev->devname); |
1da177e4 LT |
352 | kfree(p_dev); |
353 | } | |
354 | ||
355 | ||
356 | static int pcmcia_device_probe(struct device * dev) | |
357 | { | |
358 | struct pcmcia_device *p_dev; | |
359 | struct pcmcia_driver *p_drv; | |
f8cfa618 | 360 | struct pcmcia_socket *s; |
1da177e4 LT |
361 | int ret = 0; |
362 | ||
363 | dev = get_device(dev); | |
364 | if (!dev) | |
365 | return -ENODEV; | |
366 | ||
367 | p_dev = to_pcmcia_dev(dev); | |
368 | p_drv = to_pcmcia_drv(dev->driver); | |
f8cfa618 | 369 | s = p_dev->socket; |
1da177e4 | 370 | |
f8cfa618 | 371 | if ((!p_drv->probe) || (!try_module_get(p_drv->owner))) { |
1da177e4 LT |
372 | ret = -EINVAL; |
373 | goto put_dev; | |
374 | } | |
375 | ||
f8cfa618 DB |
376 | p_dev->state &= ~CLIENT_UNBOUND; |
377 | ||
378 | /* set up the device configuration, if it hasn't been done before */ | |
379 | if (!s->functions) { | |
380 | cistpl_longlink_mfc_t mfc; | |
381 | if (pccard_read_tuple(s, p_dev->func, CISTPL_LONGLINK_MFC, | |
382 | &mfc) == CS_SUCCESS) | |
383 | s->functions = mfc.nfn; | |
384 | else | |
385 | s->functions = 1; | |
8084b372 | 386 | s->config = kzalloc(sizeof(config_t) * s->functions, |
f8cfa618 DB |
387 | GFP_KERNEL); |
388 | if (!s->config) { | |
389 | ret = -ENOMEM; | |
390 | goto put_module; | |
1da177e4 LT |
391 | } |
392 | } | |
393 | ||
f8cfa618 DB |
394 | ret = p_drv->probe(p_dev); |
395 | ||
396 | put_module: | |
1da177e4 LT |
397 | if (ret) |
398 | module_put(p_drv->owner); | |
399 | put_dev: | |
f8cfa618 | 400 | if (ret) |
1da177e4 LT |
401 | put_device(dev); |
402 | return (ret); | |
403 | } | |
404 | ||
405 | ||
406 | static int pcmcia_device_remove(struct device * dev) | |
407 | { | |
408 | struct pcmcia_device *p_dev; | |
409 | struct pcmcia_driver *p_drv; | |
cc3b4866 | 410 | int i; |
1da177e4 LT |
411 | |
412 | /* detach the "instance" */ | |
413 | p_dev = to_pcmcia_dev(dev); | |
414 | p_drv = to_pcmcia_drv(dev->driver); | |
f3990715 DB |
415 | if (!p_drv) |
416 | return 0; | |
1da177e4 | 417 | |
f3990715 | 418 | if (p_drv->remove) |
cc3b4866 DB |
419 | p_drv->remove(p_dev); |
420 | ||
f3990715 DB |
421 | /* check for proper unloading */ |
422 | if (p_dev->state & (CLIENT_IRQ_REQ|CLIENT_IO_REQ|CLIENT_CONFIG_LOCKED)) | |
423 | printk(KERN_INFO "pcmcia: driver %s did not release config properly\n", | |
424 | p_drv->drv.name); | |
cc3b4866 | 425 | |
f3990715 DB |
426 | for (i = 0; i < MAX_WIN; i++) |
427 | if (p_dev->state & CLIENT_WIN_REQ(i)) | |
428 | printk(KERN_INFO "pcmcia: driver %s did not release windows properly\n", | |
429 | p_drv->drv.name); | |
cc3b4866 | 430 | |
f3990715 | 431 | /* references from pcmcia_probe_device */ |
f8cfa618 | 432 | p_dev->state = CLIENT_UNBOUND; |
f3990715 DB |
433 | pcmcia_put_dev(p_dev); |
434 | module_put(p_drv->owner); | |
1da177e4 LT |
435 | |
436 | return 0; | |
437 | } | |
438 | ||
439 | ||
cc3b4866 DB |
440 | /* |
441 | * Removes a PCMCIA card from the device tree and socket list. | |
442 | */ | |
443 | static void pcmcia_card_remove(struct pcmcia_socket *s) | |
444 | { | |
445 | struct pcmcia_device *p_dev; | |
446 | unsigned long flags; | |
447 | ||
448 | ds_dbg(2, "unbind_request(%d)\n", s->sock); | |
449 | ||
450 | s->device_count = 0; | |
451 | ||
452 | for (;;) { | |
453 | /* unregister all pcmcia_devices registered with this socket*/ | |
454 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
455 | if (list_empty(&s->devices_list)) { | |
456 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
457 | return; | |
458 | } | |
459 | p_dev = list_entry((&s->devices_list)->next, struct pcmcia_device, socket_device_list); | |
460 | list_del(&p_dev->socket_device_list); | |
461 | p_dev->state |= CLIENT_STALE; | |
462 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
463 | ||
464 | device_unregister(&p_dev->dev); | |
465 | } | |
466 | ||
467 | return; | |
468 | } /* unbind_request */ | |
469 | ||
1da177e4 LT |
470 | |
471 | /* | |
472 | * pcmcia_device_query -- determine information about a pcmcia device | |
473 | */ | |
474 | static int pcmcia_device_query(struct pcmcia_device *p_dev) | |
475 | { | |
476 | cistpl_manfid_t manf_id; | |
477 | cistpl_funcid_t func_id; | |
76fa82fb | 478 | cistpl_vers_1_t *vers1; |
1da177e4 LT |
479 | unsigned int i; |
480 | ||
76fa82fb IM |
481 | vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL); |
482 | if (!vers1) | |
483 | return -ENOMEM; | |
484 | ||
1da177e4 LT |
485 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
486 | CISTPL_MANFID, &manf_id)) { | |
487 | p_dev->manf_id = manf_id.manf; | |
488 | p_dev->card_id = manf_id.card; | |
489 | p_dev->has_manf_id = 1; | |
490 | p_dev->has_card_id = 1; | |
491 | } | |
492 | ||
493 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, | |
494 | CISTPL_FUNCID, &func_id)) { | |
495 | p_dev->func_id = func_id.func; | |
496 | p_dev->has_func_id = 1; | |
497 | } else { | |
498 | /* rule of thumb: cards with no FUNCID, but with | |
499 | * common memory device geometry information, are | |
500 | * probably memory cards (from pcmcia-cs) */ | |
76fa82fb IM |
501 | cistpl_device_geo_t *devgeo; |
502 | ||
503 | devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL); | |
504 | if (!devgeo) { | |
505 | kfree(vers1); | |
506 | return -ENOMEM; | |
507 | } | |
1da177e4 | 508 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
76fa82fb | 509 | CISTPL_DEVICE_GEO, devgeo)) { |
1da177e4 LT |
510 | ds_dbg(0, "mem device geometry probably means " |
511 | "FUNCID_MEMORY\n"); | |
512 | p_dev->func_id = CISTPL_FUNCID_MEMORY; | |
513 | p_dev->has_func_id = 1; | |
514 | } | |
76fa82fb | 515 | kfree(devgeo); |
1da177e4 LT |
516 | } |
517 | ||
518 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_VERS_1, | |
76fa82fb IM |
519 | vers1)) { |
520 | for (i=0; i < vers1->ns; i++) { | |
1da177e4 LT |
521 | char *tmp; |
522 | unsigned int length; | |
523 | ||
76fa82fb | 524 | tmp = vers1->str + vers1->ofs[i]; |
1da177e4 LT |
525 | |
526 | length = strlen(tmp) + 1; | |
527 | if ((length < 3) || (length > 255)) | |
528 | continue; | |
529 | ||
530 | p_dev->prod_id[i] = kmalloc(sizeof(char) * length, | |
531 | GFP_KERNEL); | |
532 | if (!p_dev->prod_id[i]) | |
533 | continue; | |
534 | ||
535 | p_dev->prod_id[i] = strncpy(p_dev->prod_id[i], | |
536 | tmp, length); | |
537 | } | |
538 | } | |
539 | ||
76fa82fb | 540 | kfree(vers1); |
1da177e4 LT |
541 | return 0; |
542 | } | |
543 | ||
544 | ||
545 | /* device_add_lock is needed to avoid double registration by cardmgr and kernel. | |
546 | * Serializes pcmcia_device_add; will most likely be removed in future. | |
547 | * | |
548 | * While it has the caveat that adding new PCMCIA devices inside(!) device_register() | |
549 | * won't work, this doesn't matter much at the moment: the driver core doesn't | |
550 | * support it either. | |
551 | */ | |
552 | static DECLARE_MUTEX(device_add_lock); | |
553 | ||
dc109497 | 554 | struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function) |
1da177e4 LT |
555 | { |
556 | struct pcmcia_device *p_dev; | |
557 | unsigned long flags; | |
bd65a685 | 558 | int bus_id_len; |
1da177e4 | 559 | |
dc109497 | 560 | s = pcmcia_get_socket(s); |
1da177e4 LT |
561 | if (!s) |
562 | return NULL; | |
563 | ||
564 | down(&device_add_lock); | |
565 | ||
1ad275e3 DB |
566 | /* max of 2 devices per card */ |
567 | if (s->device_count == 2) | |
568 | goto err_put; | |
569 | ||
8084b372 | 570 | p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL); |
1da177e4 LT |
571 | if (!p_dev) |
572 | goto err_put; | |
1da177e4 | 573 | |
dc109497 | 574 | p_dev->socket = s; |
1da177e4 LT |
575 | p_dev->device_no = (s->device_count++); |
576 | p_dev->func = function; | |
577 | ||
578 | p_dev->dev.bus = &pcmcia_bus_type; | |
dc109497 | 579 | p_dev->dev.parent = s->dev.dev; |
1da177e4 | 580 | p_dev->dev.release = pcmcia_release_dev; |
bd65a685 BG |
581 | bus_id_len = sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no); |
582 | ||
583 | p_dev->devname = kmalloc(6 + bus_id_len + 1, GFP_KERNEL); | |
584 | if (!p_dev->devname) | |
585 | goto err_free; | |
586 | sprintf (p_dev->devname, "pcmcia%s", p_dev->dev.bus_id); | |
1da177e4 LT |
587 | |
588 | /* compat */ | |
e12a9a93 | 589 | p_dev->state = CLIENT_UNBOUND; |
1da177e4 LT |
590 | |
591 | /* Add to the list in pcmcia_bus_socket */ | |
592 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
593 | list_add_tail(&p_dev->socket_device_list, &s->devices_list); | |
594 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
595 | ||
807277cb DB |
596 | printk(KERN_NOTICE "pcmcia: registering new device %s\n", |
597 | p_dev->devname); | |
598 | ||
1ad275e3 DB |
599 | pcmcia_device_query(p_dev); |
600 | ||
1da177e4 LT |
601 | if (device_register(&p_dev->dev)) { |
602 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
603 | list_del(&p_dev->socket_device_list); | |
604 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
605 | ||
606 | goto err_free; | |
607 | } | |
608 | ||
609 | up(&device_add_lock); | |
610 | ||
611 | return p_dev; | |
612 | ||
613 | err_free: | |
bd65a685 | 614 | kfree(p_dev->devname); |
1da177e4 LT |
615 | kfree(p_dev); |
616 | s->device_count--; | |
617 | err_put: | |
618 | up(&device_add_lock); | |
dc109497 | 619 | pcmcia_put_socket(s); |
1da177e4 LT |
620 | |
621 | return NULL; | |
622 | } | |
623 | ||
624 | ||
625 | static int pcmcia_card_add(struct pcmcia_socket *s) | |
626 | { | |
627 | cisinfo_t cisinfo; | |
628 | cistpl_longlink_mfc_t mfc; | |
629 | unsigned int no_funcs, i; | |
630 | int ret = 0; | |
631 | ||
632 | if (!(s->resource_setup_done)) | |
633 | return -EAGAIN; /* try again, but later... */ | |
634 | ||
de75914e DB |
635 | if (pcmcia_validate_mem(s)) |
636 | return -EAGAIN; /* try again, but later... */ | |
637 | ||
1da177e4 LT |
638 | ret = pccard_validate_cis(s, BIND_FN_ALL, &cisinfo); |
639 | if (ret || !cisinfo.Chains) { | |
640 | ds_dbg(0, "invalid CIS or invalid resources\n"); | |
641 | return -ENODEV; | |
642 | } | |
643 | ||
644 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
645 | no_funcs = mfc.nfn; | |
646 | else | |
647 | no_funcs = 1; | |
648 | ||
1da177e4 | 649 | for (i=0; i < no_funcs; i++) |
dc109497 | 650 | pcmcia_device_add(s, i); |
1da177e4 LT |
651 | |
652 | return (ret); | |
653 | } | |
654 | ||
655 | ||
1ad275e3 DB |
656 | static void pcmcia_delayed_add_pseudo_device(void *data) |
657 | { | |
dc109497 | 658 | struct pcmcia_socket *s = data; |
1ad275e3 | 659 | pcmcia_device_add(s, 0); |
b5e43913 | 660 | s->pcmcia_state.device_add_pending = 0; |
1ad275e3 DB |
661 | } |
662 | ||
dc109497 | 663 | static inline void pcmcia_add_pseudo_device(struct pcmcia_socket *s) |
1ad275e3 | 664 | { |
b5e43913 | 665 | if (!s->pcmcia_state.device_add_pending) { |
b5e43913 | 666 | s->pcmcia_state.device_add_pending = 1; |
5d546f54 | 667 | schedule_work(&s->device_add); |
1ad275e3 DB |
668 | } |
669 | return; | |
670 | } | |
671 | ||
e2f0b534 | 672 | static int pcmcia_requery(struct device *dev, void * _data) |
ff1fa9ef | 673 | { |
e2f0b534 DB |
674 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
675 | if (!p_dev->dev.driver) | |
676 | pcmcia_device_query(p_dev); | |
677 | ||
678 | return 0; | |
679 | } | |
680 | ||
681 | static void pcmcia_bus_rescan(struct pcmcia_socket *skt) | |
682 | { | |
683 | int no_devices=0; | |
684 | unsigned long flags; | |
685 | ||
ff1fa9ef | 686 | /* must be called with skt_sem held */ |
e2f0b534 | 687 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
dc109497 | 688 | if (list_empty(&skt->devices_list)) |
e2f0b534 DB |
689 | no_devices=1; |
690 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
691 | ||
692 | /* if no devices were added for this socket yet because of | |
693 | * missing resource information or other trouble, we need to | |
694 | * do this now. */ | |
695 | if (no_devices) { | |
696 | int ret = pcmcia_card_add(skt); | |
697 | if (ret) | |
698 | return; | |
699 | } | |
700 | ||
701 | /* some device information might have changed because of a CIS | |
702 | * update or because we can finally read it correctly... so | |
703 | * determine it again, overwriting old values if necessary. */ | |
704 | bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery); | |
705 | ||
706 | /* we re-scan all devices, not just the ones connected to this | |
707 | * socket. This does not matter, though. */ | |
a5b55778 | 708 | bus_rescan_devices(&pcmcia_bus_type); |
ff1fa9ef | 709 | } |
1ad275e3 DB |
710 | |
711 | static inline int pcmcia_devmatch(struct pcmcia_device *dev, | |
712 | struct pcmcia_device_id *did) | |
713 | { | |
714 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) { | |
715 | if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id)) | |
716 | return 0; | |
717 | } | |
718 | ||
719 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) { | |
720 | if ((!dev->has_card_id) || (dev->card_id != did->card_id)) | |
721 | return 0; | |
722 | } | |
723 | ||
724 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) { | |
725 | if (dev->func != did->function) | |
726 | return 0; | |
727 | } | |
728 | ||
729 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) { | |
730 | if (!dev->prod_id[0]) | |
731 | return 0; | |
732 | if (strcmp(did->prod_id[0], dev->prod_id[0])) | |
733 | return 0; | |
734 | } | |
735 | ||
736 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) { | |
737 | if (!dev->prod_id[1]) | |
738 | return 0; | |
739 | if (strcmp(did->prod_id[1], dev->prod_id[1])) | |
740 | return 0; | |
741 | } | |
742 | ||
743 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) { | |
744 | if (!dev->prod_id[2]) | |
745 | return 0; | |
746 | if (strcmp(did->prod_id[2], dev->prod_id[2])) | |
747 | return 0; | |
748 | } | |
749 | ||
750 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) { | |
751 | if (!dev->prod_id[3]) | |
752 | return 0; | |
753 | if (strcmp(did->prod_id[3], dev->prod_id[3])) | |
754 | return 0; | |
755 | } | |
756 | ||
757 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { | |
758 | /* handle pseudo multifunction devices: | |
759 | * there are at most two pseudo multifunction devices. | |
760 | * if we're matching against the first, schedule a | |
761 | * call which will then check whether there are two | |
762 | * pseudo devices, and if not, add the second one. | |
763 | */ | |
764 | if (dev->device_no == 0) | |
dc109497 | 765 | pcmcia_add_pseudo_device(dev->socket); |
1ad275e3 DB |
766 | |
767 | if (dev->device_no != did->device_no) | |
768 | return 0; | |
769 | } | |
770 | ||
771 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { | |
772 | if ((!dev->has_func_id) || (dev->func_id != did->func_id)) | |
773 | return 0; | |
774 | ||
775 | /* if this is a pseudo-multi-function device, | |
776 | * we need explicit matches */ | |
777 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) | |
778 | return 0; | |
779 | if (dev->device_no) | |
780 | return 0; | |
781 | ||
782 | /* also, FUNC_ID matching needs to be activated by userspace | |
783 | * after it has re-checked that there is no possible module | |
784 | * with a prod_id/manf_id/card_id match. | |
785 | */ | |
786 | if (!dev->allow_func_id_match) | |
787 | return 0; | |
788 | } | |
789 | ||
ea7b3882 | 790 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { |
daa9517d DB |
791 | if (!dev->socket->fake_cis) |
792 | pcmcia_load_firmware(dev, did->cisfile); | |
793 | ||
794 | if (!dev->socket->fake_cis) | |
ea7b3882 | 795 | return 0; |
ea7b3882 DB |
796 | } |
797 | ||
f602ff7e DB |
798 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { |
799 | int i; | |
800 | for (i=0; i<4; i++) | |
801 | if (dev->prod_id[i]) | |
802 | return 0; | |
803 | if (dev->has_manf_id || dev->has_card_id || dev->has_func_id) | |
804 | return 0; | |
805 | } | |
806 | ||
1ad275e3 DB |
807 | dev->dev.driver_data = (void *) did; |
808 | ||
809 | return 1; | |
810 | } | |
811 | ||
812 | ||
1da177e4 LT |
813 | static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) { |
814 | struct pcmcia_device * p_dev = to_pcmcia_dev(dev); | |
815 | struct pcmcia_driver * p_drv = to_pcmcia_drv(drv); | |
1ad275e3 | 816 | struct pcmcia_device_id *did = p_drv->id_table; |
1da177e4 LT |
817 | |
818 | /* matching by cardmgr */ | |
819 | if (p_dev->cardmgr == p_drv) | |
820 | return 1; | |
821 | ||
1ad275e3 DB |
822 | while (did && did->match_flags) { |
823 | if (pcmcia_devmatch(p_dev, did)) | |
824 | return 1; | |
825 | did++; | |
826 | } | |
827 | ||
1da177e4 LT |
828 | return 0; |
829 | } | |
830 | ||
840c2ac5 DB |
831 | #ifdef CONFIG_HOTPLUG |
832 | ||
312c004d KS |
833 | static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, |
834 | char *buffer, int buffer_size) | |
840c2ac5 DB |
835 | { |
836 | struct pcmcia_device *p_dev; | |
837 | int i, length = 0; | |
838 | u32 hash[4] = { 0, 0, 0, 0}; | |
839 | ||
840 | if (!dev) | |
841 | return -ENODEV; | |
842 | ||
843 | p_dev = to_pcmcia_dev(dev); | |
844 | ||
845 | /* calculate hashes */ | |
846 | for (i=0; i<4; i++) { | |
847 | if (!p_dev->prod_id[i]) | |
848 | continue; | |
849 | hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); | |
850 | } | |
851 | ||
852 | i = 0; | |
853 | ||
312c004d KS |
854 | if (add_uevent_var(envp, num_envp, &i, |
855 | buffer, buffer_size, &length, | |
856 | "SOCKET_NO=%u", | |
857 | p_dev->socket->sock)) | |
840c2ac5 DB |
858 | return -ENOMEM; |
859 | ||
312c004d KS |
860 | if (add_uevent_var(envp, num_envp, &i, |
861 | buffer, buffer_size, &length, | |
862 | "DEVICE_NO=%02X", | |
863 | p_dev->device_no)) | |
840c2ac5 DB |
864 | return -ENOMEM; |
865 | ||
312c004d KS |
866 | if (add_uevent_var(envp, num_envp, &i, |
867 | buffer, buffer_size, &length, | |
868 | "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
869 | "pa%08Xpb%08Xpc%08Xpd%08X", | |
870 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
871 | p_dev->has_card_id ? p_dev->card_id : 0, | |
872 | p_dev->has_func_id ? p_dev->func_id : 0, | |
873 | p_dev->func, | |
874 | p_dev->device_no, | |
875 | hash[0], | |
876 | hash[1], | |
877 | hash[2], | |
878 | hash[3])) | |
840c2ac5 DB |
879 | return -ENOMEM; |
880 | ||
881 | envp[i] = NULL; | |
882 | ||
883 | return 0; | |
884 | } | |
885 | ||
886 | #else | |
887 | ||
312c004d | 888 | static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, |
840c2ac5 DB |
889 | char *buffer, int buffer_size) |
890 | { | |
891 | return -ENODEV; | |
892 | } | |
893 | ||
894 | #endif | |
895 | ||
1da177e4 LT |
896 | /************************ per-device sysfs output ***************************/ |
897 | ||
898 | #define pcmcia_device_attr(field, test, format) \ | |
e404e274 | 899 | static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
900 | { \ |
901 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
902 | return p_dev->test ? sprintf (buf, format, p_dev->field) : -ENODEV; \ | |
903 | } | |
904 | ||
905 | #define pcmcia_device_stringattr(name, field) \ | |
e404e274 | 906 | static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
907 | { \ |
908 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
909 | return p_dev->field ? sprintf (buf, "%s\n", p_dev->field) : -ENODEV; \ | |
910 | } | |
911 | ||
912 | pcmcia_device_attr(func, socket, "0x%02x\n"); | |
913 | pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); | |
914 | pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); | |
915 | pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); | |
916 | pcmcia_device_stringattr(prod_id1, prod_id[0]); | |
917 | pcmcia_device_stringattr(prod_id2, prod_id[1]); | |
918 | pcmcia_device_stringattr(prod_id3, prod_id[2]); | |
919 | pcmcia_device_stringattr(prod_id4, prod_id[3]); | |
920 | ||
db1019ca DB |
921 | |
922 | static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf) | |
923 | { | |
924 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
925 | ||
926 | if (p_dev->dev.power.power_state.event != PM_EVENT_ON) | |
927 | return sprintf(buf, "off\n"); | |
928 | else | |
929 | return sprintf(buf, "on\n"); | |
930 | } | |
931 | ||
932 | static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr, | |
933 | const char *buf, size_t count) | |
934 | { | |
935 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
936 | int ret = 0; | |
937 | ||
938 | if (!count) | |
939 | return -EINVAL; | |
940 | ||
941 | if ((p_dev->dev.power.power_state.event == PM_EVENT_ON) && | |
942 | (!strncmp(buf, "off", 3))) | |
943 | ret = dpm_runtime_suspend(dev, PMSG_SUSPEND); | |
944 | else if ((p_dev->dev.power.power_state.event != PM_EVENT_ON) && | |
945 | (!strncmp(buf, "on", 2))) | |
946 | dpm_runtime_resume(dev); | |
947 | ||
948 | return ret ? ret : count; | |
949 | } | |
950 | ||
951 | ||
3704511b | 952 | static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) |
3248ff43 DB |
953 | { |
954 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
955 | int i; | |
956 | u32 hash[4] = { 0, 0, 0, 0}; | |
957 | ||
958 | /* calculate hashes */ | |
959 | for (i=0; i<4; i++) { | |
960 | if (!p_dev->prod_id[i]) | |
961 | continue; | |
962 | hash[i] = crc32(0,p_dev->prod_id[i],strlen(p_dev->prod_id[i])); | |
963 | } | |
964 | return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
965 | "pa%08Xpb%08Xpc%08Xpd%08X\n", | |
966 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
967 | p_dev->has_card_id ? p_dev->card_id : 0, | |
968 | p_dev->has_func_id ? p_dev->func_id : 0, | |
969 | p_dev->func, p_dev->device_no, | |
970 | hash[0], hash[1], hash[2], hash[3]); | |
971 | } | |
a5b55778 | 972 | |
3248ff43 DB |
973 | static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, |
974 | struct device_attribute *attr, const char *buf, size_t count) | |
a5b55778 DB |
975 | { |
976 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
db1019ca DB |
977 | |
978 | if (!count) | |
979 | return -EINVAL; | |
a5b55778 DB |
980 | |
981 | down(&p_dev->socket->skt_sem); | |
982 | p_dev->allow_func_id_match = 1; | |
983 | up(&p_dev->socket->skt_sem); | |
984 | ||
985 | bus_rescan_devices(&pcmcia_bus_type); | |
986 | ||
987 | return count; | |
988 | } | |
989 | ||
1da177e4 LT |
990 | static struct device_attribute pcmcia_dev_attrs[] = { |
991 | __ATTR(function, 0444, func_show, NULL), | |
db1019ca | 992 | __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state), |
1da177e4 LT |
993 | __ATTR_RO(func_id), |
994 | __ATTR_RO(manf_id), | |
995 | __ATTR_RO(card_id), | |
996 | __ATTR_RO(prod_id1), | |
997 | __ATTR_RO(prod_id2), | |
998 | __ATTR_RO(prod_id3), | |
999 | __ATTR_RO(prod_id4), | |
3248ff43 | 1000 | __ATTR_RO(modalias), |
a5b55778 | 1001 | __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), |
1da177e4 LT |
1002 | __ATTR_NULL, |
1003 | }; | |
1004 | ||
8e9e793d DB |
1005 | /* PM support, also needed for reset */ |
1006 | ||
1007 | static int pcmcia_dev_suspend(struct device * dev, pm_message_t state) | |
1008 | { | |
1009 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1010 | struct pcmcia_driver *p_drv = NULL; | |
1011 | ||
1012 | if (dev->driver) | |
1013 | p_drv = to_pcmcia_drv(dev->driver); | |
1014 | ||
1015 | if (p_drv && p_drv->suspend) | |
1016 | return p_drv->suspend(p_dev); | |
1017 | ||
1018 | return 0; | |
1019 | } | |
1020 | ||
1021 | ||
1022 | static int pcmcia_dev_resume(struct device * dev) | |
1023 | { | |
1024 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1025 | struct pcmcia_driver *p_drv = NULL; | |
1026 | ||
1027 | if (dev->driver) | |
1028 | p_drv = to_pcmcia_drv(dev->driver); | |
1029 | ||
1030 | if (p_drv && p_drv->resume) | |
1031 | return p_drv->resume(p_dev); | |
1032 | ||
1033 | return 0; | |
1034 | } | |
1035 | ||
1036 | ||
1037 | static int pcmcia_bus_suspend_callback(struct device *dev, void * _data) | |
1038 | { | |
1039 | struct pcmcia_socket *skt = _data; | |
1040 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1041 | ||
1042 | if (p_dev->socket != skt) | |
1043 | return 0; | |
1044 | ||
1045 | return dpm_runtime_suspend(dev, PMSG_SUSPEND); | |
1046 | } | |
1047 | ||
1048 | static int pcmcia_bus_resume_callback(struct device *dev, void * _data) | |
1049 | { | |
1050 | struct pcmcia_socket *skt = _data; | |
1051 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1052 | ||
1053 | if (p_dev->socket != skt) | |
1054 | return 0; | |
1055 | ||
1056 | dpm_runtime_resume(dev); | |
1057 | ||
1058 | return 0; | |
1059 | } | |
1060 | ||
1061 | static int pcmcia_bus_resume(struct pcmcia_socket *skt) | |
1062 | { | |
1063 | bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback); | |
1064 | return 0; | |
1065 | } | |
1066 | ||
1067 | static int pcmcia_bus_suspend(struct pcmcia_socket *skt) | |
1068 | { | |
1069 | if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt, | |
1070 | pcmcia_bus_suspend_callback)) { | |
1071 | pcmcia_bus_resume(skt); | |
1072 | return -EIO; | |
1073 | } | |
1074 | return 0; | |
1075 | } | |
1076 | ||
1da177e4 | 1077 | |
1da177e4 LT |
1078 | /*====================================================================== |
1079 | ||
1080 | The card status event handler. | |
1081 | ||
1082 | ======================================================================*/ | |
1083 | ||
1da177e4 LT |
1084 | /* Normally, the event is passed to individual drivers after |
1085 | * informing userspace. Only for CS_EVENT_CARD_REMOVAL this | |
1086 | * is inversed to maintain historic compatibility. | |
1087 | */ | |
1088 | ||
1089 | static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) | |
1090 | { | |
dc109497 | 1091 | struct pcmcia_socket *s = pcmcia_get_socket(skt); |
1da177e4 LT |
1092 | |
1093 | ds_dbg(1, "ds_event(0x%06x, %d, 0x%p)\n", | |
dc109497 | 1094 | event, priority, skt); |
1da177e4 | 1095 | |
f8cfa618 | 1096 | switch (event) { |
1da177e4 | 1097 | case CS_EVENT_CARD_REMOVAL: |
b5e43913 | 1098 | s->pcmcia_state.present = 0; |
cc3b4866 | 1099 | pcmcia_card_remove(skt); |
dc109497 | 1100 | handle_event(skt, event); |
1da177e4 | 1101 | break; |
f8cfa618 | 1102 | |
1da177e4 | 1103 | case CS_EVENT_CARD_INSERTION: |
b5e43913 | 1104 | s->pcmcia_state.present = 1; |
1da177e4 | 1105 | pcmcia_card_add(skt); |
dc109497 | 1106 | handle_event(skt, event); |
1da177e4 LT |
1107 | break; |
1108 | ||
1109 | case CS_EVENT_EJECTION_REQUEST: | |
1da177e4 LT |
1110 | break; |
1111 | ||
8e9e793d DB |
1112 | case CS_EVENT_PM_SUSPEND: |
1113 | case CS_EVENT_PM_RESUME: | |
1114 | case CS_EVENT_RESET_PHYSICAL: | |
1115 | case CS_EVENT_CARD_RESET: | |
1da177e4 | 1116 | default: |
dc109497 | 1117 | handle_event(skt, event); |
1da177e4 LT |
1118 | break; |
1119 | } | |
1120 | ||
dc109497 DB |
1121 | pcmcia_put_socket(s); |
1122 | ||
1da177e4 LT |
1123 | return 0; |
1124 | } /* ds_event */ | |
1125 | ||
1126 | ||
90c6cdd1 DB |
1127 | static struct pcmcia_callback pcmcia_bus_callback = { |
1128 | .owner = THIS_MODULE, | |
1129 | .event = ds_event, | |
1130 | .requery = pcmcia_bus_rescan, | |
8e9e793d DB |
1131 | .suspend = pcmcia_bus_suspend, |
1132 | .resume = pcmcia_bus_resume, | |
90c6cdd1 DB |
1133 | }; |
1134 | ||
d8539d81 DT |
1135 | static int __devinit pcmcia_bus_add_socket(struct class_device *class_dev, |
1136 | struct class_interface *class_intf) | |
1da177e4 LT |
1137 | { |
1138 | struct pcmcia_socket *socket = class_get_devdata(class_dev); | |
1da177e4 LT |
1139 | int ret; |
1140 | ||
dc109497 DB |
1141 | socket = pcmcia_get_socket(socket); |
1142 | if (!socket) { | |
1da177e4 | 1143 | printk(KERN_ERR "PCMCIA obtaining reference to socket %p failed\n", socket); |
1da177e4 LT |
1144 | return -ENODEV; |
1145 | } | |
1146 | ||
1da177e4 LT |
1147 | /* |
1148 | * Ugly. But we want to wait for the socket threads to have started up. | |
1149 | * We really should let the drivers themselves drive some of this.. | |
1150 | */ | |
1151 | msleep(250); | |
1152 | ||
e7a480d2 | 1153 | #ifdef CONFIG_PCMCIA_IOCTL |
dc109497 | 1154 | init_waitqueue_head(&socket->queue); |
e7a480d2 | 1155 | #endif |
dc109497 DB |
1156 | INIT_LIST_HEAD(&socket->devices_list); |
1157 | INIT_WORK(&socket->device_add, pcmcia_delayed_add_pseudo_device, socket); | |
1158 | memset(&socket->pcmcia_state, 0, sizeof(u8)); | |
1159 | socket->device_count = 0; | |
1da177e4 | 1160 | |
90c6cdd1 | 1161 | ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback); |
1da177e4 LT |
1162 | if (ret) { |
1163 | printk(KERN_ERR "PCMCIA registration PCCard core failed for socket %p\n", socket); | |
dc109497 | 1164 | pcmcia_put_socket(socket); |
1da177e4 LT |
1165 | return (ret); |
1166 | } | |
1167 | ||
1168 | return 0; | |
1169 | } | |
1170 | ||
d8539d81 DT |
1171 | static void pcmcia_bus_remove_socket(struct class_device *class_dev, |
1172 | struct class_interface *class_intf) | |
1da177e4 LT |
1173 | { |
1174 | struct pcmcia_socket *socket = class_get_devdata(class_dev); | |
1175 | ||
dc109497 | 1176 | if (!socket) |
1da177e4 LT |
1177 | return; |
1178 | ||
dc109497 | 1179 | socket->pcmcia_state.dead = 1; |
1da177e4 LT |
1180 | pccard_register_pcmcia(socket, NULL); |
1181 | ||
dc109497 | 1182 | pcmcia_put_socket(socket); |
1da177e4 LT |
1183 | |
1184 | return; | |
1185 | } | |
1186 | ||
1187 | ||
1188 | /* the pcmcia_bus_interface is used to handle pcmcia socket devices */ | |
1189 | static struct class_interface pcmcia_bus_interface = { | |
1190 | .class = &pcmcia_socket_class, | |
1191 | .add = &pcmcia_bus_add_socket, | |
1192 | .remove = &pcmcia_bus_remove_socket, | |
1193 | }; | |
1194 | ||
1195 | ||
e7a480d2 | 1196 | struct bus_type pcmcia_bus_type = { |
1da177e4 | 1197 | .name = "pcmcia", |
312c004d | 1198 | .uevent = pcmcia_bus_uevent, |
1da177e4 LT |
1199 | .match = pcmcia_bus_match, |
1200 | .dev_attrs = pcmcia_dev_attrs, | |
1d0baa3a RK |
1201 | .probe = pcmcia_device_probe, |
1202 | .remove = pcmcia_device_remove, | |
8e9e793d DB |
1203 | .suspend = pcmcia_dev_suspend, |
1204 | .resume = pcmcia_dev_resume, | |
1da177e4 | 1205 | }; |
1da177e4 LT |
1206 | |
1207 | ||
1208 | static int __init init_pcmcia_bus(void) | |
1209 | { | |
1da177e4 LT |
1210 | spin_lock_init(&pcmcia_dev_list_lock); |
1211 | ||
1212 | bus_register(&pcmcia_bus_type); | |
1213 | class_interface_register(&pcmcia_bus_interface); | |
1214 | ||
e7a480d2 | 1215 | pcmcia_setup_ioctl(); |
1da177e4 LT |
1216 | |
1217 | return 0; | |
1218 | } | |
1219 | fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that | |
1220 | * pcmcia_socket_class is already registered */ | |
1221 | ||
1222 | ||
1223 | static void __exit exit_pcmcia_bus(void) | |
1224 | { | |
e7a480d2 | 1225 | pcmcia_cleanup_ioctl(); |
1da177e4 | 1226 | |
e7a480d2 | 1227 | class_interface_unregister(&pcmcia_bus_interface); |
1da177e4 LT |
1228 | |
1229 | bus_unregister(&pcmcia_bus_type); | |
1230 | } | |
1231 | module_exit(exit_pcmcia_bus); | |
1232 | ||
1233 | ||
1da177e4 | 1234 | MODULE_ALIAS("ds"); |