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 | 233 | |
1da177e4 LT |
234 | /*======================================================================*/ |
235 | ||
1da177e4 | 236 | |
1da177e4 LT |
237 | /** |
238 | * pcmcia_register_driver - register a PCMCIA driver with the bus core | |
239 | * | |
240 | * Registers a PCMCIA driver with the PCMCIA bus core. | |
241 | */ | |
1da177e4 LT |
242 | int pcmcia_register_driver(struct pcmcia_driver *driver) |
243 | { | |
244 | if (!driver) | |
245 | return -EINVAL; | |
246 | ||
23a83bfe DB |
247 | pcmcia_check_driver(driver); |
248 | ||
1da177e4 LT |
249 | /* initialize common fields */ |
250 | driver->drv.bus = &pcmcia_bus_type; | |
251 | driver->drv.owner = driver->owner; | |
1da177e4 LT |
252 | |
253 | return driver_register(&driver->drv); | |
254 | } | |
255 | EXPORT_SYMBOL(pcmcia_register_driver); | |
256 | ||
257 | /** | |
258 | * pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core | |
259 | */ | |
260 | void pcmcia_unregister_driver(struct pcmcia_driver *driver) | |
261 | { | |
262 | driver_unregister(&driver->drv); | |
263 | } | |
264 | EXPORT_SYMBOL(pcmcia_unregister_driver); | |
265 | ||
1da177e4 LT |
266 | |
267 | /* pcmcia_device handling */ | |
268 | ||
e7a480d2 | 269 | struct pcmcia_device * pcmcia_get_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
270 | { |
271 | struct device *tmp_dev; | |
272 | tmp_dev = get_device(&p_dev->dev); | |
273 | if (!tmp_dev) | |
274 | return NULL; | |
275 | return to_pcmcia_dev(tmp_dev); | |
276 | } | |
277 | ||
e7a480d2 | 278 | void pcmcia_put_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
279 | { |
280 | if (p_dev) | |
281 | put_device(&p_dev->dev); | |
282 | } | |
283 | ||
360b65b9 DB |
284 | static void pcmcia_release_function(struct kref *ref) |
285 | { | |
286 | struct config_t *c = container_of(ref, struct config_t, ref); | |
287 | kfree(c); | |
288 | } | |
289 | ||
1da177e4 LT |
290 | static void pcmcia_release_dev(struct device *dev) |
291 | { | |
292 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
293 | ds_dbg(1, "releasing dev %p\n", p_dev); | |
dc109497 | 294 | pcmcia_put_socket(p_dev->socket); |
bd65a685 | 295 | kfree(p_dev->devname); |
360b65b9 | 296 | kref_put(&p_dev->function_config->ref, pcmcia_release_function); |
1da177e4 LT |
297 | kfree(p_dev); |
298 | } | |
299 | ||
1d2c9042 | 300 | static void pcmcia_add_device_later(struct pcmcia_socket *s, int mfc) |
82d56e6d DB |
301 | { |
302 | if (!s->pcmcia_state.device_add_pending) { | |
303 | s->pcmcia_state.device_add_pending = 1; | |
1d2c9042 | 304 | s->pcmcia_state.mfc_pfc = mfc; |
82d56e6d DB |
305 | schedule_work(&s->device_add); |
306 | } | |
307 | return; | |
308 | } | |
1da177e4 LT |
309 | |
310 | static int pcmcia_device_probe(struct device * dev) | |
311 | { | |
312 | struct pcmcia_device *p_dev; | |
313 | struct pcmcia_driver *p_drv; | |
82d56e6d | 314 | struct pcmcia_device_id *did; |
f8cfa618 | 315 | struct pcmcia_socket *s; |
1da177e4 LT |
316 | int ret = 0; |
317 | ||
318 | dev = get_device(dev); | |
319 | if (!dev) | |
320 | return -ENODEV; | |
321 | ||
322 | p_dev = to_pcmcia_dev(dev); | |
323 | p_drv = to_pcmcia_drv(dev->driver); | |
f8cfa618 | 324 | s = p_dev->socket; |
1da177e4 | 325 | |
360b65b9 DB |
326 | if ((!p_drv->probe) || (!p_dev->function_config) || |
327 | (!try_module_get(p_drv->owner))) { | |
1da177e4 LT |
328 | ret = -EINVAL; |
329 | goto put_dev; | |
330 | } | |
331 | ||
f8cfa618 | 332 | ret = p_drv->probe(p_dev); |
82d56e6d DB |
333 | if (ret) |
334 | goto put_module; | |
335 | ||
336 | /* handle pseudo multifunction devices: | |
337 | * there are at most two pseudo multifunction devices. | |
338 | * if we're matching against the first, schedule a | |
339 | * call which will then check whether there are two | |
340 | * pseudo devices, and if not, add the second one. | |
341 | */ | |
80a55e92 | 342 | did = p_dev->dev.driver_data; |
4ceadbf5 | 343 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
82d56e6d | 344 | (p_dev->socket->device_count == 1) && (p_dev->device_no == 0)) |
1d2c9042 | 345 | pcmcia_add_device_later(p_dev->socket, 0); |
f8cfa618 DB |
346 | |
347 | put_module: | |
1da177e4 LT |
348 | if (ret) |
349 | module_put(p_drv->owner); | |
350 | put_dev: | |
f8cfa618 | 351 | if (ret) |
1da177e4 LT |
352 | put_device(dev); |
353 | return (ret); | |
354 | } | |
355 | ||
356 | ||
d6ff5a85 DB |
357 | /* |
358 | * Removes a PCMCIA card from the device tree and socket list. | |
359 | */ | |
360 | static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *leftover) | |
361 | { | |
362 | struct pcmcia_device *p_dev; | |
363 | struct pcmcia_device *tmp; | |
364 | unsigned long flags; | |
365 | ||
366 | ds_dbg(2, "unbind_request(%d)\n", s->sock); | |
367 | ||
368 | ||
369 | if (!leftover) | |
370 | s->device_count = 0; | |
371 | else | |
372 | s->device_count = 1; | |
373 | ||
374 | /* unregister all pcmcia_devices registered with this socket, except leftover */ | |
375 | list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) { | |
376 | if (p_dev == leftover) | |
377 | continue; | |
378 | ||
379 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
380 | list_del(&p_dev->socket_device_list); | |
381 | p_dev->_removed=1; | |
382 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
383 | ||
384 | device_unregister(&p_dev->dev); | |
385 | } | |
386 | ||
387 | return; | |
388 | } | |
389 | ||
1da177e4 LT |
390 | static int pcmcia_device_remove(struct device * dev) |
391 | { | |
392 | struct pcmcia_device *p_dev; | |
393 | struct pcmcia_driver *p_drv; | |
d6ff5a85 | 394 | struct pcmcia_device_id *did; |
cc3b4866 | 395 | int i; |
1da177e4 | 396 | |
1da177e4 LT |
397 | p_dev = to_pcmcia_dev(dev); |
398 | p_drv = to_pcmcia_drv(dev->driver); | |
d6ff5a85 DB |
399 | |
400 | /* If we're removing the primary module driving a | |
401 | * pseudo multi-function card, we need to unbind | |
402 | * all devices | |
403 | */ | |
80a55e92 | 404 | did = p_dev->dev.driver_data; |
b2f51a1c | 405 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
d6ff5a85 DB |
406 | (p_dev->socket->device_count != 0) && |
407 | (p_dev->device_no == 0)) | |
408 | pcmcia_card_remove(p_dev->socket, p_dev); | |
409 | ||
410 | /* detach the "instance" */ | |
f3990715 DB |
411 | if (!p_drv) |
412 | return 0; | |
1da177e4 | 413 | |
f3990715 | 414 | if (p_drv->remove) |
cc3b4866 DB |
415 | p_drv->remove(p_dev); |
416 | ||
a0aab143 DB |
417 | p_dev->dev_node = NULL; |
418 | ||
f3990715 | 419 | /* check for proper unloading */ |
e2d40963 | 420 | if (p_dev->_irq || p_dev->_io || p_dev->_locked) |
f3990715 DB |
421 | printk(KERN_INFO "pcmcia: driver %s did not release config properly\n", |
422 | p_drv->drv.name); | |
cc3b4866 | 423 | |
f3990715 | 424 | for (i = 0; i < MAX_WIN; i++) |
e2d40963 | 425 | if (p_dev->_win & CLIENT_WIN_REQ(i)) |
f3990715 DB |
426 | printk(KERN_INFO "pcmcia: driver %s did not release windows properly\n", |
427 | p_drv->drv.name); | |
cc3b4866 | 428 | |
f3990715 DB |
429 | /* references from pcmcia_probe_device */ |
430 | pcmcia_put_dev(p_dev); | |
431 | module_put(p_drv->owner); | |
1da177e4 LT |
432 | |
433 | return 0; | |
434 | } | |
435 | ||
436 | ||
1da177e4 LT |
437 | /* |
438 | * pcmcia_device_query -- determine information about a pcmcia device | |
439 | */ | |
440 | static int pcmcia_device_query(struct pcmcia_device *p_dev) | |
441 | { | |
442 | cistpl_manfid_t manf_id; | |
443 | cistpl_funcid_t func_id; | |
76fa82fb | 444 | cistpl_vers_1_t *vers1; |
1da177e4 LT |
445 | unsigned int i; |
446 | ||
76fa82fb IM |
447 | vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL); |
448 | if (!vers1) | |
449 | return -ENOMEM; | |
450 | ||
1da177e4 LT |
451 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
452 | CISTPL_MANFID, &manf_id)) { | |
453 | p_dev->manf_id = manf_id.manf; | |
454 | p_dev->card_id = manf_id.card; | |
455 | p_dev->has_manf_id = 1; | |
456 | p_dev->has_card_id = 1; | |
457 | } | |
458 | ||
459 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, | |
460 | CISTPL_FUNCID, &func_id)) { | |
461 | p_dev->func_id = func_id.func; | |
462 | p_dev->has_func_id = 1; | |
463 | } else { | |
464 | /* rule of thumb: cards with no FUNCID, but with | |
465 | * common memory device geometry information, are | |
466 | * probably memory cards (from pcmcia-cs) */ | |
76fa82fb IM |
467 | cistpl_device_geo_t *devgeo; |
468 | ||
469 | devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL); | |
470 | if (!devgeo) { | |
471 | kfree(vers1); | |
472 | return -ENOMEM; | |
473 | } | |
1da177e4 | 474 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
76fa82fb | 475 | CISTPL_DEVICE_GEO, devgeo)) { |
1da177e4 LT |
476 | ds_dbg(0, "mem device geometry probably means " |
477 | "FUNCID_MEMORY\n"); | |
478 | p_dev->func_id = CISTPL_FUNCID_MEMORY; | |
479 | p_dev->has_func_id = 1; | |
480 | } | |
76fa82fb | 481 | kfree(devgeo); |
1da177e4 LT |
482 | } |
483 | ||
484 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_VERS_1, | |
76fa82fb IM |
485 | vers1)) { |
486 | for (i=0; i < vers1->ns; i++) { | |
1da177e4 LT |
487 | char *tmp; |
488 | unsigned int length; | |
489 | ||
76fa82fb | 490 | tmp = vers1->str + vers1->ofs[i]; |
1da177e4 LT |
491 | |
492 | length = strlen(tmp) + 1; | |
6e3d4f25 | 493 | if ((length < 2) || (length > 255)) |
1da177e4 LT |
494 | continue; |
495 | ||
496 | p_dev->prod_id[i] = kmalloc(sizeof(char) * length, | |
497 | GFP_KERNEL); | |
498 | if (!p_dev->prod_id[i]) | |
499 | continue; | |
500 | ||
501 | p_dev->prod_id[i] = strncpy(p_dev->prod_id[i], | |
502 | tmp, length); | |
503 | } | |
504 | } | |
505 | ||
76fa82fb | 506 | kfree(vers1); |
1da177e4 LT |
507 | return 0; |
508 | } | |
509 | ||
510 | ||
511 | /* device_add_lock is needed to avoid double registration by cardmgr and kernel. | |
512 | * Serializes pcmcia_device_add; will most likely be removed in future. | |
513 | * | |
514 | * While it has the caveat that adding new PCMCIA devices inside(!) device_register() | |
515 | * won't work, this doesn't matter much at the moment: the driver core doesn't | |
516 | * support it either. | |
517 | */ | |
7fe908dd | 518 | static DEFINE_MUTEX(device_add_lock); |
1da177e4 | 519 | |
dc109497 | 520 | struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function) |
1da177e4 | 521 | { |
360b65b9 | 522 | struct pcmcia_device *p_dev, *tmp_dev; |
1da177e4 | 523 | unsigned long flags; |
bd65a685 | 524 | int bus_id_len; |
1da177e4 | 525 | |
dc109497 | 526 | s = pcmcia_get_socket(s); |
1da177e4 LT |
527 | if (!s) |
528 | return NULL; | |
529 | ||
7fe908dd | 530 | mutex_lock(&device_add_lock); |
1da177e4 | 531 | |
6cf5be51 DB |
532 | /* max of 4 devices per card */ |
533 | if (s->device_count == 4) | |
1ad275e3 DB |
534 | goto err_put; |
535 | ||
8084b372 | 536 | p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL); |
1da177e4 LT |
537 | if (!p_dev) |
538 | goto err_put; | |
1da177e4 | 539 | |
dc109497 | 540 | p_dev->socket = s; |
1da177e4 LT |
541 | p_dev->device_no = (s->device_count++); |
542 | p_dev->func = function; | |
543 | ||
544 | p_dev->dev.bus = &pcmcia_bus_type; | |
dc109497 | 545 | p_dev->dev.parent = s->dev.dev; |
1da177e4 | 546 | p_dev->dev.release = pcmcia_release_dev; |
bd65a685 BG |
547 | bus_id_len = sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no); |
548 | ||
549 | p_dev->devname = kmalloc(6 + bus_id_len + 1, GFP_KERNEL); | |
550 | if (!p_dev->devname) | |
551 | goto err_free; | |
552 | sprintf (p_dev->devname, "pcmcia%s", p_dev->dev.bus_id); | |
1da177e4 LT |
553 | |
554 | /* compat */ | |
1da177e4 | 555 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
360b65b9 DB |
556 | |
557 | /* | |
558 | * p_dev->function_config must be the same for all card functions. | |
559 | * Note that this is serialized by the device_add_lock, so that | |
560 | * only one such struct will be created. | |
561 | */ | |
562 | list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list) | |
563 | if (p_dev->func == tmp_dev->func) { | |
564 | p_dev->function_config = tmp_dev->function_config; | |
565 | kref_get(&p_dev->function_config->ref); | |
566 | } | |
567 | ||
568 | /* Add to the list in pcmcia_bus_socket */ | |
6171b88b | 569 | list_add(&p_dev->socket_device_list, &s->devices_list); |
360b65b9 | 570 | |
1da177e4 LT |
571 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
572 | ||
360b65b9 DB |
573 | if (!p_dev->function_config) { |
574 | p_dev->function_config = kzalloc(sizeof(struct config_t), | |
575 | GFP_KERNEL); | |
576 | if (!p_dev->function_config) | |
577 | goto err_unreg; | |
578 | kref_init(&p_dev->function_config->ref); | |
579 | } | |
580 | ||
807277cb DB |
581 | printk(KERN_NOTICE "pcmcia: registering new device %s\n", |
582 | p_dev->devname); | |
583 | ||
1ad275e3 DB |
584 | pcmcia_device_query(p_dev); |
585 | ||
360b65b9 DB |
586 | if (device_register(&p_dev->dev)) |
587 | goto err_unreg; | |
1da177e4 | 588 | |
7fe908dd | 589 | mutex_unlock(&device_add_lock); |
1da177e4 LT |
590 | |
591 | return p_dev; | |
592 | ||
360b65b9 DB |
593 | err_unreg: |
594 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
595 | list_del(&p_dev->socket_device_list); | |
596 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
597 | ||
1da177e4 | 598 | err_free: |
bd65a685 | 599 | kfree(p_dev->devname); |
1da177e4 LT |
600 | kfree(p_dev); |
601 | s->device_count--; | |
602 | err_put: | |
7fe908dd | 603 | mutex_unlock(&device_add_lock); |
dc109497 | 604 | pcmcia_put_socket(s); |
1da177e4 LT |
605 | |
606 | return NULL; | |
607 | } | |
608 | ||
609 | ||
610 | static int pcmcia_card_add(struct pcmcia_socket *s) | |
611 | { | |
612 | cisinfo_t cisinfo; | |
613 | cistpl_longlink_mfc_t mfc; | |
614 | unsigned int no_funcs, i; | |
615 | int ret = 0; | |
616 | ||
617 | if (!(s->resource_setup_done)) | |
618 | return -EAGAIN; /* try again, but later... */ | |
619 | ||
de75914e DB |
620 | if (pcmcia_validate_mem(s)) |
621 | return -EAGAIN; /* try again, but later... */ | |
622 | ||
1da177e4 LT |
623 | ret = pccard_validate_cis(s, BIND_FN_ALL, &cisinfo); |
624 | if (ret || !cisinfo.Chains) { | |
625 | ds_dbg(0, "invalid CIS or invalid resources\n"); | |
626 | return -ENODEV; | |
627 | } | |
628 | ||
629 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
630 | no_funcs = mfc.nfn; | |
631 | else | |
632 | no_funcs = 1; | |
1d2c9042 | 633 | s->functions = no_funcs; |
1da177e4 | 634 | |
1da177e4 | 635 | for (i=0; i < no_funcs; i++) |
dc109497 | 636 | pcmcia_device_add(s, i); |
1da177e4 LT |
637 | |
638 | return (ret); | |
639 | } | |
640 | ||
641 | ||
1d2c9042 | 642 | static void pcmcia_delayed_add_device(void *data) |
1ad275e3 | 643 | { |
dc109497 | 644 | struct pcmcia_socket *s = data; |
1d2c9042 | 645 | pcmcia_device_add(s, s->pcmcia_state.mfc_pfc); |
b5e43913 | 646 | s->pcmcia_state.device_add_pending = 0; |
1d2c9042 | 647 | s->pcmcia_state.mfc_pfc = 0; |
1ad275e3 DB |
648 | } |
649 | ||
e2f0b534 | 650 | static int pcmcia_requery(struct device *dev, void * _data) |
ff1fa9ef | 651 | { |
e2f0b534 DB |
652 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
653 | if (!p_dev->dev.driver) | |
654 | pcmcia_device_query(p_dev); | |
655 | ||
656 | return 0; | |
657 | } | |
658 | ||
4ae1cbf1 | 659 | static void pcmcia_bus_rescan(struct pcmcia_socket *skt, int new_cis) |
e2f0b534 | 660 | { |
4ae1cbf1 | 661 | int no_devices = 0; |
f901b8c4 | 662 | int ret = 0; |
e2f0b534 DB |
663 | unsigned long flags; |
664 | ||
7fe908dd | 665 | /* must be called with skt_mutex held */ |
e2f0b534 | 666 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
dc109497 | 667 | if (list_empty(&skt->devices_list)) |
4ae1cbf1 | 668 | no_devices = 1; |
e2f0b534 DB |
669 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
670 | ||
4ae1cbf1 DB |
671 | /* If this is because of a CIS override, start over */ |
672 | if (new_cis && !no_devices) | |
673 | pcmcia_card_remove(skt, NULL); | |
674 | ||
e2f0b534 DB |
675 | /* if no devices were added for this socket yet because of |
676 | * missing resource information or other trouble, we need to | |
677 | * do this now. */ | |
4ae1cbf1 | 678 | if (no_devices || new_cis) { |
f901b8c4 | 679 | ret = pcmcia_card_add(skt); |
e2f0b534 DB |
680 | if (ret) |
681 | return; | |
682 | } | |
683 | ||
684 | /* some device information might have changed because of a CIS | |
685 | * update or because we can finally read it correctly... so | |
686 | * determine it again, overwriting old values if necessary. */ | |
687 | bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery); | |
688 | ||
689 | /* we re-scan all devices, not just the ones connected to this | |
690 | * socket. This does not matter, though. */ | |
f901b8c4 DB |
691 | ret = bus_rescan_devices(&pcmcia_bus_type); |
692 | if (ret) | |
693 | printk(KERN_INFO "pcmcia: bus_rescan_devices failed\n"); | |
ff1fa9ef | 694 | } |
1ad275e3 | 695 | |
1d2c9042 DB |
696 | #ifdef CONFIG_PCMCIA_LOAD_CIS |
697 | ||
698 | /** | |
699 | * pcmcia_load_firmware - load CIS from userspace if device-provided is broken | |
700 | * @dev - the pcmcia device which needs a CIS override | |
701 | * @filename - requested filename in /lib/firmware/ | |
702 | * | |
703 | * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if | |
704 | * the one provided by the card is broken. The firmware files reside in | |
705 | * /lib/firmware/ in userspace. | |
706 | */ | |
707 | static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
708 | { | |
709 | struct pcmcia_socket *s = dev->socket; | |
710 | const struct firmware *fw; | |
711 | char path[20]; | |
712 | int ret = -ENOMEM; | |
713 | int no_funcs; | |
714 | int old_funcs; | |
715 | cisdump_t *cis; | |
716 | cistpl_longlink_mfc_t mfc; | |
717 | ||
718 | if (!filename) | |
719 | return -EINVAL; | |
720 | ||
721 | ds_dbg(1, "trying to load firmware %s\n", filename); | |
722 | ||
723 | if (strlen(filename) > 14) | |
724 | return -EINVAL; | |
725 | ||
726 | snprintf(path, 20, "%s", filename); | |
727 | ||
728 | if (request_firmware(&fw, path, &dev->dev) == 0) { | |
729 | if (fw->size >= CISTPL_MAX_CIS_SIZE) | |
730 | goto release; | |
731 | ||
732 | cis = kzalloc(sizeof(cisdump_t), GFP_KERNEL); | |
733 | if (!cis) | |
734 | goto release; | |
735 | ||
736 | cis->Length = fw->size + 1; | |
737 | memcpy(cis->Data, fw->data, fw->size); | |
738 | ||
739 | if (!pcmcia_replace_cis(s, cis)) | |
740 | ret = 0; | |
741 | ||
742 | /* update information */ | |
743 | pcmcia_device_query(dev); | |
744 | ||
745 | /* does this cis override add or remove functions? */ | |
746 | old_funcs = s->functions; | |
747 | ||
748 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
749 | no_funcs = mfc.nfn; | |
750 | else | |
751 | no_funcs = 1; | |
752 | s->functions = no_funcs; | |
753 | ||
754 | if (old_funcs > no_funcs) | |
755 | pcmcia_card_remove(s, dev); | |
756 | else if (no_funcs > old_funcs) | |
757 | pcmcia_add_device_later(s, 1); | |
758 | } | |
759 | release: | |
760 | release_firmware(fw); | |
761 | ||
762 | return (ret); | |
763 | } | |
764 | ||
765 | #else /* !CONFIG_PCMCIA_LOAD_CIS */ | |
766 | ||
767 | static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
768 | { | |
769 | return -ENODEV; | |
770 | } | |
771 | ||
772 | #endif | |
773 | ||
774 | ||
1ad275e3 DB |
775 | static inline int pcmcia_devmatch(struct pcmcia_device *dev, |
776 | struct pcmcia_device_id *did) | |
777 | { | |
778 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) { | |
779 | if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id)) | |
780 | return 0; | |
781 | } | |
782 | ||
783 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) { | |
784 | if ((!dev->has_card_id) || (dev->card_id != did->card_id)) | |
785 | return 0; | |
786 | } | |
787 | ||
788 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) { | |
789 | if (dev->func != did->function) | |
790 | return 0; | |
791 | } | |
792 | ||
793 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) { | |
794 | if (!dev->prod_id[0]) | |
795 | return 0; | |
796 | if (strcmp(did->prod_id[0], dev->prod_id[0])) | |
797 | return 0; | |
798 | } | |
799 | ||
800 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) { | |
801 | if (!dev->prod_id[1]) | |
802 | return 0; | |
803 | if (strcmp(did->prod_id[1], dev->prod_id[1])) | |
804 | return 0; | |
805 | } | |
806 | ||
807 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) { | |
808 | if (!dev->prod_id[2]) | |
809 | return 0; | |
810 | if (strcmp(did->prod_id[2], dev->prod_id[2])) | |
811 | return 0; | |
812 | } | |
813 | ||
814 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) { | |
815 | if (!dev->prod_id[3]) | |
816 | return 0; | |
817 | if (strcmp(did->prod_id[3], dev->prod_id[3])) | |
818 | return 0; | |
819 | } | |
820 | ||
821 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { | |
1ad275e3 DB |
822 | if (dev->device_no != did->device_no) |
823 | return 0; | |
824 | } | |
825 | ||
826 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { | |
827 | if ((!dev->has_func_id) || (dev->func_id != did->func_id)) | |
828 | return 0; | |
829 | ||
830 | /* if this is a pseudo-multi-function device, | |
831 | * we need explicit matches */ | |
832 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) | |
833 | return 0; | |
834 | if (dev->device_no) | |
835 | return 0; | |
836 | ||
837 | /* also, FUNC_ID matching needs to be activated by userspace | |
838 | * after it has re-checked that there is no possible module | |
839 | * with a prod_id/manf_id/card_id match. | |
840 | */ | |
841 | if (!dev->allow_func_id_match) | |
842 | return 0; | |
843 | } | |
844 | ||
ea7b3882 | 845 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { |
daa9517d DB |
846 | if (!dev->socket->fake_cis) |
847 | pcmcia_load_firmware(dev, did->cisfile); | |
848 | ||
849 | if (!dev->socket->fake_cis) | |
ea7b3882 | 850 | return 0; |
ea7b3882 DB |
851 | } |
852 | ||
f602ff7e DB |
853 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { |
854 | int i; | |
855 | for (i=0; i<4; i++) | |
856 | if (dev->prod_id[i]) | |
857 | return 0; | |
858 | if (dev->has_manf_id || dev->has_card_id || dev->has_func_id) | |
859 | return 0; | |
860 | } | |
861 | ||
1ad275e3 DB |
862 | dev->dev.driver_data = (void *) did; |
863 | ||
864 | return 1; | |
865 | } | |
866 | ||
867 | ||
1da177e4 LT |
868 | static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) { |
869 | struct pcmcia_device * p_dev = to_pcmcia_dev(dev); | |
870 | struct pcmcia_driver * p_drv = to_pcmcia_drv(drv); | |
1ad275e3 | 871 | struct pcmcia_device_id *did = p_drv->id_table; |
1da177e4 | 872 | |
0e0fad8f | 873 | #ifdef CONFIG_PCMCIA_IOCTL |
1da177e4 LT |
874 | /* matching by cardmgr */ |
875 | if (p_dev->cardmgr == p_drv) | |
876 | return 1; | |
0e0fad8f | 877 | #endif |
1da177e4 | 878 | |
1ad275e3 DB |
879 | while (did && did->match_flags) { |
880 | if (pcmcia_devmatch(p_dev, did)) | |
881 | return 1; | |
882 | did++; | |
883 | } | |
884 | ||
1da177e4 LT |
885 | return 0; |
886 | } | |
887 | ||
840c2ac5 DB |
888 | #ifdef CONFIG_HOTPLUG |
889 | ||
312c004d KS |
890 | static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, |
891 | char *buffer, int buffer_size) | |
840c2ac5 DB |
892 | { |
893 | struct pcmcia_device *p_dev; | |
894 | int i, length = 0; | |
895 | u32 hash[4] = { 0, 0, 0, 0}; | |
896 | ||
897 | if (!dev) | |
898 | return -ENODEV; | |
899 | ||
900 | p_dev = to_pcmcia_dev(dev); | |
901 | ||
902 | /* calculate hashes */ | |
903 | for (i=0; i<4; i++) { | |
904 | if (!p_dev->prod_id[i]) | |
905 | continue; | |
906 | hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); | |
907 | } | |
908 | ||
909 | i = 0; | |
910 | ||
312c004d KS |
911 | if (add_uevent_var(envp, num_envp, &i, |
912 | buffer, buffer_size, &length, | |
913 | "SOCKET_NO=%u", | |
914 | p_dev->socket->sock)) | |
840c2ac5 DB |
915 | return -ENOMEM; |
916 | ||
312c004d KS |
917 | if (add_uevent_var(envp, num_envp, &i, |
918 | buffer, buffer_size, &length, | |
919 | "DEVICE_NO=%02X", | |
920 | p_dev->device_no)) | |
840c2ac5 DB |
921 | return -ENOMEM; |
922 | ||
312c004d KS |
923 | if (add_uevent_var(envp, num_envp, &i, |
924 | buffer, buffer_size, &length, | |
925 | "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
926 | "pa%08Xpb%08Xpc%08Xpd%08X", | |
927 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
928 | p_dev->has_card_id ? p_dev->card_id : 0, | |
929 | p_dev->has_func_id ? p_dev->func_id : 0, | |
930 | p_dev->func, | |
931 | p_dev->device_no, | |
932 | hash[0], | |
933 | hash[1], | |
934 | hash[2], | |
935 | hash[3])) | |
840c2ac5 DB |
936 | return -ENOMEM; |
937 | ||
938 | envp[i] = NULL; | |
939 | ||
940 | return 0; | |
941 | } | |
942 | ||
943 | #else | |
944 | ||
312c004d | 945 | static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, |
840c2ac5 DB |
946 | char *buffer, int buffer_size) |
947 | { | |
948 | return -ENODEV; | |
949 | } | |
950 | ||
951 | #endif | |
952 | ||
1da177e4 LT |
953 | /************************ per-device sysfs output ***************************/ |
954 | ||
955 | #define pcmcia_device_attr(field, test, format) \ | |
e404e274 | 956 | static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
957 | { \ |
958 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
959 | return p_dev->test ? sprintf (buf, format, p_dev->field) : -ENODEV; \ | |
960 | } | |
961 | ||
962 | #define pcmcia_device_stringattr(name, field) \ | |
e404e274 | 963 | static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
964 | { \ |
965 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
966 | return p_dev->field ? sprintf (buf, "%s\n", p_dev->field) : -ENODEV; \ | |
967 | } | |
968 | ||
969 | pcmcia_device_attr(func, socket, "0x%02x\n"); | |
970 | pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); | |
971 | pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); | |
972 | pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); | |
973 | pcmcia_device_stringattr(prod_id1, prod_id[0]); | |
974 | pcmcia_device_stringattr(prod_id2, prod_id[1]); | |
975 | pcmcia_device_stringattr(prod_id3, prod_id[2]); | |
976 | pcmcia_device_stringattr(prod_id4, prod_id[3]); | |
977 | ||
db1019ca DB |
978 | |
979 | static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf) | |
980 | { | |
981 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
982 | ||
f6fbe01a | 983 | if (p_dev->suspended) |
db1019ca DB |
984 | return sprintf(buf, "off\n"); |
985 | else | |
986 | return sprintf(buf, "on\n"); | |
987 | } | |
988 | ||
989 | static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr, | |
990 | const char *buf, size_t count) | |
991 | { | |
992 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
993 | int ret = 0; | |
994 | ||
995 | if (!count) | |
996 | return -EINVAL; | |
997 | ||
f6fbe01a | 998 | if ((!p_dev->suspended) && !strncmp(buf, "off", 3)) |
db1019ca | 999 | ret = dpm_runtime_suspend(dev, PMSG_SUSPEND); |
f6fbe01a | 1000 | else if (p_dev->suspended && !strncmp(buf, "on", 2)) |
db1019ca DB |
1001 | dpm_runtime_resume(dev); |
1002 | ||
1003 | return ret ? ret : count; | |
1004 | } | |
1005 | ||
1006 | ||
3704511b | 1007 | static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) |
3248ff43 DB |
1008 | { |
1009 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1010 | int i; | |
1011 | u32 hash[4] = { 0, 0, 0, 0}; | |
1012 | ||
1013 | /* calculate hashes */ | |
1014 | for (i=0; i<4; i++) { | |
1015 | if (!p_dev->prod_id[i]) | |
1016 | continue; | |
1017 | hash[i] = crc32(0,p_dev->prod_id[i],strlen(p_dev->prod_id[i])); | |
1018 | } | |
1019 | return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
1020 | "pa%08Xpb%08Xpc%08Xpd%08X\n", | |
1021 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1022 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1023 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1024 | p_dev->func, p_dev->device_no, | |
1025 | hash[0], hash[1], hash[2], hash[3]); | |
1026 | } | |
a5b55778 | 1027 | |
3248ff43 DB |
1028 | static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, |
1029 | struct device_attribute *attr, const char *buf, size_t count) | |
a5b55778 DB |
1030 | { |
1031 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
f901b8c4 | 1032 | int ret; |
db1019ca DB |
1033 | |
1034 | if (!count) | |
1035 | return -EINVAL; | |
a5b55778 | 1036 | |
7fe908dd | 1037 | mutex_lock(&p_dev->socket->skt_mutex); |
a5b55778 | 1038 | p_dev->allow_func_id_match = 1; |
7fe908dd | 1039 | mutex_unlock(&p_dev->socket->skt_mutex); |
a5b55778 | 1040 | |
f901b8c4 DB |
1041 | ret = bus_rescan_devices(&pcmcia_bus_type); |
1042 | if (ret) | |
1043 | printk(KERN_INFO "pcmcia: bus_rescan_devices failed after " | |
1044 | "allowing func_id matches\n"); | |
a5b55778 DB |
1045 | |
1046 | return count; | |
1047 | } | |
1048 | ||
1da177e4 LT |
1049 | static struct device_attribute pcmcia_dev_attrs[] = { |
1050 | __ATTR(function, 0444, func_show, NULL), | |
db1019ca | 1051 | __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state), |
1da177e4 LT |
1052 | __ATTR_RO(func_id), |
1053 | __ATTR_RO(manf_id), | |
1054 | __ATTR_RO(card_id), | |
1055 | __ATTR_RO(prod_id1), | |
1056 | __ATTR_RO(prod_id2), | |
1057 | __ATTR_RO(prod_id3), | |
1058 | __ATTR_RO(prod_id4), | |
3248ff43 | 1059 | __ATTR_RO(modalias), |
a5b55778 | 1060 | __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), |
1da177e4 LT |
1061 | __ATTR_NULL, |
1062 | }; | |
1063 | ||
8e9e793d DB |
1064 | /* PM support, also needed for reset */ |
1065 | ||
1066 | static int pcmcia_dev_suspend(struct device * dev, pm_message_t state) | |
1067 | { | |
1068 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1069 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1070 | int ret = 0; |
8e9e793d DB |
1071 | |
1072 | if (dev->driver) | |
1073 | p_drv = to_pcmcia_drv(dev->driver); | |
1074 | ||
e2d40963 DB |
1075 | if (!p_drv) |
1076 | goto out; | |
1077 | ||
1078 | if (p_drv->suspend) { | |
8661bb5b DB |
1079 | ret = p_drv->suspend(p_dev); |
1080 | if (ret) | |
f6fbe01a | 1081 | goto out; |
8661bb5b | 1082 | } |
8e9e793d | 1083 | |
e2d40963 DB |
1084 | if (p_dev->device_no == p_dev->func) |
1085 | pcmcia_release_configuration(p_dev); | |
1086 | ||
f6fbe01a DB |
1087 | out: |
1088 | if (!ret) | |
1089 | p_dev->suspended = 1; | |
1090 | return ret; | |
8e9e793d DB |
1091 | } |
1092 | ||
1093 | ||
1094 | static int pcmcia_dev_resume(struct device * dev) | |
1095 | { | |
1096 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1097 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1098 | int ret = 0; |
8e9e793d DB |
1099 | |
1100 | if (dev->driver) | |
1101 | p_drv = to_pcmcia_drv(dev->driver); | |
1102 | ||
e2d40963 DB |
1103 | if (!p_drv) |
1104 | goto out; | |
1105 | ||
1106 | if (p_dev->device_no == p_dev->func) { | |
1107 | ret = pcmcia_request_configuration(p_dev, &p_dev->conf); | |
1108 | if (ret) | |
1109 | goto out; | |
8661bb5b | 1110 | } |
8e9e793d | 1111 | |
e2d40963 DB |
1112 | if (p_drv->resume) |
1113 | ret = p_drv->resume(p_dev); | |
1114 | ||
f6fbe01a DB |
1115 | out: |
1116 | if (!ret) | |
1117 | p_dev->suspended = 0; | |
1118 | return ret; | |
8e9e793d DB |
1119 | } |
1120 | ||
1121 | ||
1122 | static int pcmcia_bus_suspend_callback(struct device *dev, void * _data) | |
1123 | { | |
1124 | struct pcmcia_socket *skt = _data; | |
1125 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1126 | ||
1127 | if (p_dev->socket != skt) | |
1128 | return 0; | |
1129 | ||
1130 | return dpm_runtime_suspend(dev, PMSG_SUSPEND); | |
1131 | } | |
1132 | ||
1133 | static int pcmcia_bus_resume_callback(struct device *dev, void * _data) | |
1134 | { | |
1135 | struct pcmcia_socket *skt = _data; | |
1136 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1137 | ||
1138 | if (p_dev->socket != skt) | |
1139 | return 0; | |
1140 | ||
1141 | dpm_runtime_resume(dev); | |
1142 | ||
1143 | return 0; | |
1144 | } | |
1145 | ||
1146 | static int pcmcia_bus_resume(struct pcmcia_socket *skt) | |
1147 | { | |
1148 | bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback); | |
1149 | return 0; | |
1150 | } | |
1151 | ||
1152 | static int pcmcia_bus_suspend(struct pcmcia_socket *skt) | |
1153 | { | |
1154 | if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt, | |
1155 | pcmcia_bus_suspend_callback)) { | |
1156 | pcmcia_bus_resume(skt); | |
1157 | return -EIO; | |
1158 | } | |
1159 | return 0; | |
1160 | } | |
1161 | ||
1da177e4 | 1162 | |
1da177e4 LT |
1163 | /*====================================================================== |
1164 | ||
1165 | The card status event handler. | |
1166 | ||
1167 | ======================================================================*/ | |
1168 | ||
1da177e4 LT |
1169 | /* Normally, the event is passed to individual drivers after |
1170 | * informing userspace. Only for CS_EVENT_CARD_REMOVAL this | |
1171 | * is inversed to maintain historic compatibility. | |
1172 | */ | |
1173 | ||
1174 | static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) | |
1175 | { | |
dc109497 | 1176 | struct pcmcia_socket *s = pcmcia_get_socket(skt); |
1da177e4 | 1177 | |
1617406a FM |
1178 | if (!s) { |
1179 | printk(KERN_ERR "PCMCIA obtaining reference to socket %p " \ | |
1180 | "failed, event 0x%x lost!\n", skt, event); | |
1181 | return -ENODEV; | |
1182 | } | |
1183 | ||
1da177e4 | 1184 | ds_dbg(1, "ds_event(0x%06x, %d, 0x%p)\n", |
dc109497 | 1185 | event, priority, skt); |
1da177e4 | 1186 | |
f8cfa618 | 1187 | switch (event) { |
1da177e4 | 1188 | case CS_EVENT_CARD_REMOVAL: |
b5e43913 | 1189 | s->pcmcia_state.present = 0; |
d6ff5a85 | 1190 | pcmcia_card_remove(skt, NULL); |
dc109497 | 1191 | handle_event(skt, event); |
1da177e4 | 1192 | break; |
f8cfa618 | 1193 | |
1da177e4 | 1194 | case CS_EVENT_CARD_INSERTION: |
b5e43913 | 1195 | s->pcmcia_state.present = 1; |
1da177e4 | 1196 | pcmcia_card_add(skt); |
dc109497 | 1197 | handle_event(skt, event); |
1da177e4 LT |
1198 | break; |
1199 | ||
1200 | case CS_EVENT_EJECTION_REQUEST: | |
1da177e4 LT |
1201 | break; |
1202 | ||
8e9e793d DB |
1203 | case CS_EVENT_PM_SUSPEND: |
1204 | case CS_EVENT_PM_RESUME: | |
1205 | case CS_EVENT_RESET_PHYSICAL: | |
1206 | case CS_EVENT_CARD_RESET: | |
1da177e4 | 1207 | default: |
dc109497 | 1208 | handle_event(skt, event); |
1da177e4 LT |
1209 | break; |
1210 | } | |
1211 | ||
dc109497 DB |
1212 | pcmcia_put_socket(s); |
1213 | ||
1da177e4 LT |
1214 | return 0; |
1215 | } /* ds_event */ | |
1216 | ||
1217 | ||
9940ec36 DB |
1218 | struct pcmcia_device * pcmcia_dev_present(struct pcmcia_device *_p_dev) |
1219 | { | |
1220 | struct pcmcia_device *p_dev; | |
1221 | struct pcmcia_device *ret = NULL; | |
1222 | ||
1223 | p_dev = pcmcia_get_dev(_p_dev); | |
1224 | if (!p_dev) | |
1225 | return NULL; | |
1226 | ||
1227 | if (!p_dev->socket->pcmcia_state.present) | |
1228 | goto out; | |
1229 | ||
1230 | if (p_dev->_removed) | |
1231 | goto out; | |
1232 | ||
1233 | if (p_dev->suspended) | |
1234 | goto out; | |
1235 | ||
1236 | ret = p_dev; | |
1237 | out: | |
1238 | pcmcia_put_dev(p_dev); | |
1239 | return ret; | |
1240 | } | |
1241 | EXPORT_SYMBOL(pcmcia_dev_present); | |
1242 | ||
1243 | ||
90c6cdd1 DB |
1244 | static struct pcmcia_callback pcmcia_bus_callback = { |
1245 | .owner = THIS_MODULE, | |
1246 | .event = ds_event, | |
1247 | .requery = pcmcia_bus_rescan, | |
8e9e793d DB |
1248 | .suspend = pcmcia_bus_suspend, |
1249 | .resume = pcmcia_bus_resume, | |
90c6cdd1 DB |
1250 | }; |
1251 | ||
d8539d81 DT |
1252 | static int __devinit pcmcia_bus_add_socket(struct class_device *class_dev, |
1253 | struct class_interface *class_intf) | |
1da177e4 LT |
1254 | { |
1255 | struct pcmcia_socket *socket = class_get_devdata(class_dev); | |
1da177e4 LT |
1256 | int ret; |
1257 | ||
dc109497 DB |
1258 | socket = pcmcia_get_socket(socket); |
1259 | if (!socket) { | |
1da177e4 | 1260 | printk(KERN_ERR "PCMCIA obtaining reference to socket %p failed\n", socket); |
1da177e4 LT |
1261 | return -ENODEV; |
1262 | } | |
1263 | ||
1da177e4 LT |
1264 | /* |
1265 | * Ugly. But we want to wait for the socket threads to have started up. | |
1266 | * We really should let the drivers themselves drive some of this.. | |
1267 | */ | |
1268 | msleep(250); | |
1269 | ||
e7a480d2 | 1270 | #ifdef CONFIG_PCMCIA_IOCTL |
dc109497 | 1271 | init_waitqueue_head(&socket->queue); |
e7a480d2 | 1272 | #endif |
dc109497 | 1273 | INIT_LIST_HEAD(&socket->devices_list); |
1d2c9042 | 1274 | INIT_WORK(&socket->device_add, pcmcia_delayed_add_device, socket); |
dc109497 DB |
1275 | memset(&socket->pcmcia_state, 0, sizeof(u8)); |
1276 | socket->device_count = 0; | |
1da177e4 | 1277 | |
90c6cdd1 | 1278 | ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback); |
1da177e4 LT |
1279 | if (ret) { |
1280 | printk(KERN_ERR "PCMCIA registration PCCard core failed for socket %p\n", socket); | |
dc109497 | 1281 | pcmcia_put_socket(socket); |
1da177e4 LT |
1282 | return (ret); |
1283 | } | |
1284 | ||
1285 | return 0; | |
1286 | } | |
1287 | ||
d8539d81 DT |
1288 | static void pcmcia_bus_remove_socket(struct class_device *class_dev, |
1289 | struct class_interface *class_intf) | |
1da177e4 LT |
1290 | { |
1291 | struct pcmcia_socket *socket = class_get_devdata(class_dev); | |
1292 | ||
dc109497 | 1293 | if (!socket) |
1da177e4 LT |
1294 | return; |
1295 | ||
dc109497 | 1296 | socket->pcmcia_state.dead = 1; |
1da177e4 LT |
1297 | pccard_register_pcmcia(socket, NULL); |
1298 | ||
dfbc9e9d | 1299 | /* unregister any unbound devices */ |
8e4d9dcb | 1300 | mutex_lock(&socket->skt_mutex); |
dfbc9e9d | 1301 | pcmcia_card_remove(socket, NULL); |
8e4d9dcb | 1302 | mutex_unlock(&socket->skt_mutex); |
dfbc9e9d | 1303 | |
dc109497 | 1304 | pcmcia_put_socket(socket); |
1da177e4 LT |
1305 | |
1306 | return; | |
1307 | } | |
1308 | ||
1309 | ||
1310 | /* the pcmcia_bus_interface is used to handle pcmcia socket devices */ | |
1311 | static struct class_interface pcmcia_bus_interface = { | |
1312 | .class = &pcmcia_socket_class, | |
1313 | .add = &pcmcia_bus_add_socket, | |
1314 | .remove = &pcmcia_bus_remove_socket, | |
1315 | }; | |
1316 | ||
1317 | ||
e7a480d2 | 1318 | struct bus_type pcmcia_bus_type = { |
1da177e4 | 1319 | .name = "pcmcia", |
312c004d | 1320 | .uevent = pcmcia_bus_uevent, |
1da177e4 LT |
1321 | .match = pcmcia_bus_match, |
1322 | .dev_attrs = pcmcia_dev_attrs, | |
1d0baa3a RK |
1323 | .probe = pcmcia_device_probe, |
1324 | .remove = pcmcia_device_remove, | |
8e9e793d DB |
1325 | .suspend = pcmcia_dev_suspend, |
1326 | .resume = pcmcia_dev_resume, | |
1da177e4 | 1327 | }; |
1da177e4 LT |
1328 | |
1329 | ||
1330 | static int __init init_pcmcia_bus(void) | |
1331 | { | |
ace7d477 RD |
1332 | int ret; |
1333 | ||
1da177e4 LT |
1334 | spin_lock_init(&pcmcia_dev_list_lock); |
1335 | ||
ace7d477 RD |
1336 | ret = bus_register(&pcmcia_bus_type); |
1337 | if (ret < 0) { | |
1338 | printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret); | |
1339 | return ret; | |
1340 | } | |
1341 | ret = class_interface_register(&pcmcia_bus_interface); | |
1342 | if (ret < 0) { | |
1343 | printk(KERN_WARNING | |
1344 | "pcmcia: class_interface_register error: %d\n", ret); | |
1345 | bus_unregister(&pcmcia_bus_type); | |
1346 | return ret; | |
1347 | } | |
1da177e4 | 1348 | |
e7a480d2 | 1349 | pcmcia_setup_ioctl(); |
1da177e4 LT |
1350 | |
1351 | return 0; | |
1352 | } | |
1353 | fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that | |
1354 | * pcmcia_socket_class is already registered */ | |
1355 | ||
1356 | ||
1357 | static void __exit exit_pcmcia_bus(void) | |
1358 | { | |
e7a480d2 | 1359 | pcmcia_cleanup_ioctl(); |
1da177e4 | 1360 | |
e7a480d2 | 1361 | class_interface_unregister(&pcmcia_bus_interface); |
1da177e4 LT |
1362 | |
1363 | bus_unregister(&pcmcia_bus_type); | |
1364 | } | |
1365 | module_exit(exit_pcmcia_bus); | |
1366 | ||
1367 | ||
1da177e4 | 1368 | MODULE_ALIAS("ds"); |