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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * ds.c -- 16-bit PCMCIA core support | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * The initial developer of the original code is David A. Hinds | |
9 | * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds | |
10 | * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. | |
11 | * | |
12 | * (C) 1999 David A. Hinds | |
8661bb5b | 13 | * (C) 2003 - 2006 Dominik Brodowski |
1da177e4 LT |
14 | */ |
15 | ||
3b659fb8 | 16 | #include <linux/kernel.h> |
1da177e4 | 17 | #include <linux/module.h> |
1da177e4 | 18 | #include <linux/init.h> |
1da177e4 | 19 | #include <linux/errno.h> |
1da177e4 LT |
20 | #include <linux/list.h> |
21 | #include <linux/delay.h> | |
1da177e4 | 22 | #include <linux/workqueue.h> |
840c2ac5 | 23 | #include <linux/crc32.h> |
daa9517d | 24 | #include <linux/firmware.h> |
360b65b9 | 25 | #include <linux/kref.h> |
1da177e4 | 26 | |
1da177e4 | 27 | #define IN_CARD_SERVICES |
1da177e4 LT |
28 | #include <pcmcia/cs_types.h> |
29 | #include <pcmcia/cs.h> | |
1da177e4 LT |
30 | #include <pcmcia/cistpl.h> |
31 | #include <pcmcia/ds.h> | |
32 | #include <pcmcia/ss.h> | |
33 | ||
34 | #include "cs_internal.h" | |
e7a480d2 | 35 | #include "ds_internal.h" |
1da177e4 LT |
36 | |
37 | /*====================================================================*/ | |
38 | ||
39 | /* Module parameters */ | |
40 | ||
41 | MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>"); | |
42 | MODULE_DESCRIPTION("PCMCIA Driver Services"); | |
43 | MODULE_LICENSE("GPL"); | |
44 | ||
45 | #ifdef DEBUG | |
e7a480d2 | 46 | int ds_pc_debug; |
1da177e4 LT |
47 | |
48 | module_param_named(pc_debug, ds_pc_debug, int, 0644); | |
49 | ||
50 | #define ds_dbg(lvl, fmt, arg...) do { \ | |
51 | if (ds_pc_debug > (lvl)) \ | |
52 | printk(KERN_DEBUG "ds: " fmt , ## arg); \ | |
53 | } while (0) | |
54 | #else | |
55 | #define ds_dbg(lvl, fmt, arg...) do { } while (0) | |
56 | #endif | |
57 | ||
e7a480d2 | 58 | spinlock_t pcmcia_dev_list_lock; |
1da177e4 | 59 | |
1da177e4 LT |
60 | /*====================================================================*/ |
61 | ||
62 | /* code which was in cs.c before */ | |
63 | ||
64 | /* String tables for error messages */ | |
65 | ||
66 | typedef struct lookup_t { | |
67 | int key; | |
68 | char *msg; | |
69 | } lookup_t; | |
70 | ||
71 | static const lookup_t error_table[] = { | |
72 | { CS_SUCCESS, "Operation succeeded" }, | |
73 | { CS_BAD_ADAPTER, "Bad adapter" }, | |
74 | { CS_BAD_ATTRIBUTE, "Bad attribute", }, | |
75 | { CS_BAD_BASE, "Bad base address" }, | |
76 | { CS_BAD_EDC, "Bad EDC" }, | |
77 | { CS_BAD_IRQ, "Bad IRQ" }, | |
78 | { CS_BAD_OFFSET, "Bad offset" }, | |
79 | { CS_BAD_PAGE, "Bad page number" }, | |
80 | { CS_READ_FAILURE, "Read failure" }, | |
81 | { CS_BAD_SIZE, "Bad size" }, | |
82 | { CS_BAD_SOCKET, "Bad socket" }, | |
83 | { CS_BAD_TYPE, "Bad type" }, | |
84 | { CS_BAD_VCC, "Bad Vcc" }, | |
85 | { CS_BAD_VPP, "Bad Vpp" }, | |
86 | { CS_BAD_WINDOW, "Bad window" }, | |
87 | { CS_WRITE_FAILURE, "Write failure" }, | |
88 | { CS_NO_CARD, "No card present" }, | |
89 | { CS_UNSUPPORTED_FUNCTION, "Usupported function" }, | |
90 | { CS_UNSUPPORTED_MODE, "Unsupported mode" }, | |
91 | { CS_BAD_SPEED, "Bad speed" }, | |
92 | { CS_BUSY, "Resource busy" }, | |
93 | { CS_GENERAL_FAILURE, "General failure" }, | |
94 | { CS_WRITE_PROTECTED, "Write protected" }, | |
95 | { CS_BAD_ARG_LENGTH, "Bad argument length" }, | |
96 | { CS_BAD_ARGS, "Bad arguments" }, | |
97 | { CS_CONFIGURATION_LOCKED, "Configuration locked" }, | |
98 | { CS_IN_USE, "Resource in use" }, | |
99 | { CS_NO_MORE_ITEMS, "No more items" }, | |
100 | { CS_OUT_OF_RESOURCE, "Out of resource" }, | |
101 | { CS_BAD_HANDLE, "Bad handle" }, | |
102 | { CS_BAD_TUPLE, "Bad CIS tuple" } | |
103 | }; | |
104 | ||
105 | ||
106 | static const lookup_t service_table[] = { | |
107 | { AccessConfigurationRegister, "AccessConfigurationRegister" }, | |
108 | { AddSocketServices, "AddSocketServices" }, | |
109 | { AdjustResourceInfo, "AdjustResourceInfo" }, | |
110 | { CheckEraseQueue, "CheckEraseQueue" }, | |
111 | { CloseMemory, "CloseMemory" }, | |
112 | { DeregisterClient, "DeregisterClient" }, | |
113 | { DeregisterEraseQueue, "DeregisterEraseQueue" }, | |
114 | { GetCardServicesInfo, "GetCardServicesInfo" }, | |
115 | { GetClientInfo, "GetClientInfo" }, | |
116 | { GetConfigurationInfo, "GetConfigurationInfo" }, | |
117 | { GetEventMask, "GetEventMask" }, | |
118 | { GetFirstClient, "GetFirstClient" }, | |
119 | { GetFirstRegion, "GetFirstRegion" }, | |
120 | { GetFirstTuple, "GetFirstTuple" }, | |
121 | { GetNextClient, "GetNextClient" }, | |
122 | { GetNextRegion, "GetNextRegion" }, | |
123 | { GetNextTuple, "GetNextTuple" }, | |
124 | { GetStatus, "GetStatus" }, | |
125 | { GetTupleData, "GetTupleData" }, | |
126 | { MapMemPage, "MapMemPage" }, | |
127 | { ModifyConfiguration, "ModifyConfiguration" }, | |
128 | { ModifyWindow, "ModifyWindow" }, | |
129 | { OpenMemory, "OpenMemory" }, | |
130 | { ParseTuple, "ParseTuple" }, | |
131 | { ReadMemory, "ReadMemory" }, | |
132 | { RegisterClient, "RegisterClient" }, | |
133 | { RegisterEraseQueue, "RegisterEraseQueue" }, | |
134 | { RegisterMTD, "RegisterMTD" }, | |
135 | { ReleaseConfiguration, "ReleaseConfiguration" }, | |
136 | { ReleaseIO, "ReleaseIO" }, | |
137 | { ReleaseIRQ, "ReleaseIRQ" }, | |
138 | { ReleaseWindow, "ReleaseWindow" }, | |
139 | { RequestConfiguration, "RequestConfiguration" }, | |
140 | { RequestIO, "RequestIO" }, | |
141 | { RequestIRQ, "RequestIRQ" }, | |
142 | { RequestSocketMask, "RequestSocketMask" }, | |
143 | { RequestWindow, "RequestWindow" }, | |
144 | { ResetCard, "ResetCard" }, | |
145 | { SetEventMask, "SetEventMask" }, | |
146 | { ValidateCIS, "ValidateCIS" }, | |
147 | { WriteMemory, "WriteMemory" }, | |
148 | { BindDevice, "BindDevice" }, | |
149 | { BindMTD, "BindMTD" }, | |
150 | { ReportError, "ReportError" }, | |
151 | { SuspendCard, "SuspendCard" }, | |
152 | { ResumeCard, "ResumeCard" }, | |
153 | { EjectCard, "EjectCard" }, | |
154 | { InsertCard, "InsertCard" }, | |
155 | { ReplaceCIS, "ReplaceCIS" } | |
156 | }; | |
157 | ||
158 | ||
2bc5a9bd | 159 | static int pcmcia_report_error(struct pcmcia_device *p_dev, error_info_t *err) |
1da177e4 LT |
160 | { |
161 | int i; | |
162 | char *serv; | |
163 | ||
2bc5a9bd | 164 | if (!p_dev) |
1da177e4 | 165 | printk(KERN_NOTICE); |
2bc5a9bd | 166 | else |
1da177e4 | 167 | printk(KERN_NOTICE "%s: ", p_dev->dev.bus_id); |
1da177e4 LT |
168 | |
169 | for (i = 0; i < ARRAY_SIZE(service_table); i++) | |
170 | if (service_table[i].key == err->func) | |
171 | break; | |
172 | if (i < ARRAY_SIZE(service_table)) | |
173 | serv = service_table[i].msg; | |
174 | else | |
175 | serv = "Unknown service number"; | |
176 | ||
177 | for (i = 0; i < ARRAY_SIZE(error_table); i++) | |
178 | if (error_table[i].key == err->retcode) | |
179 | break; | |
180 | if (i < ARRAY_SIZE(error_table)) | |
181 | printk("%s: %s\n", serv, error_table[i].msg); | |
182 | else | |
183 | printk("%s: Unknown error code %#x\n", serv, err->retcode); | |
184 | ||
185 | return CS_SUCCESS; | |
186 | } /* report_error */ | |
1da177e4 LT |
187 | |
188 | /* end of code which was in cs.c before */ | |
189 | ||
190 | /*======================================================================*/ | |
191 | ||
2bc5a9bd | 192 | void cs_error(struct pcmcia_device *p_dev, int func, int ret) |
1da177e4 LT |
193 | { |
194 | error_info_t err = { func, ret }; | |
2bc5a9bd | 195 | pcmcia_report_error(p_dev, &err); |
1da177e4 LT |
196 | } |
197 | EXPORT_SYMBOL(cs_error); | |
198 | ||
23a83bfe DB |
199 | |
200 | static void pcmcia_check_driver(struct pcmcia_driver *p_drv) | |
201 | { | |
202 | struct pcmcia_device_id *did = p_drv->id_table; | |
203 | unsigned int i; | |
204 | u32 hash; | |
205 | ||
f8cfa618 | 206 | if (!p_drv->probe || !p_drv->remove) |
ba5bb6b5 PR |
207 | printk(KERN_DEBUG "pcmcia: %s lacks a requisite callback " |
208 | "function\n", p_drv->drv.name); | |
1e212f36 | 209 | |
23a83bfe DB |
210 | while (did && did->match_flags) { |
211 | for (i=0; i<4; i++) { | |
212 | if (!did->prod_id[i]) | |
213 | continue; | |
214 | ||
215 | hash = crc32(0, did->prod_id[i], strlen(did->prod_id[i])); | |
216 | if (hash == did->prod_id_hash[i]) | |
217 | continue; | |
218 | ||
219 | printk(KERN_DEBUG "pcmcia: %s: invalid hash for " | |
220 | "product string \"%s\": is 0x%x, should " | |
221 | "be 0x%x\n", p_drv->drv.name, did->prod_id[i], | |
222 | did->prod_id_hash[i], hash); | |
5085cb26 DB |
223 | printk(KERN_DEBUG "pcmcia: see " |
224 | "Documentation/pcmcia/devicetable.txt for " | |
225 | "details\n"); | |
23a83bfe DB |
226 | } |
227 | did++; | |
228 | } | |
229 | ||
230 | return; | |
231 | } | |
232 | ||
daa9517d | 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 | 252 | |
d9d9ea01 DB |
253 | ds_dbg(3, "registering driver %s\n", driver->drv.name); |
254 | ||
1da177e4 LT |
255 | return driver_register(&driver->drv); |
256 | } | |
257 | EXPORT_SYMBOL(pcmcia_register_driver); | |
258 | ||
259 | /** | |
260 | * pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core | |
261 | */ | |
262 | void pcmcia_unregister_driver(struct pcmcia_driver *driver) | |
263 | { | |
d9d9ea01 | 264 | ds_dbg(3, "unregistering driver %s\n", driver->drv.name); |
1da177e4 LT |
265 | driver_unregister(&driver->drv); |
266 | } | |
267 | EXPORT_SYMBOL(pcmcia_unregister_driver); | |
268 | ||
1da177e4 LT |
269 | |
270 | /* pcmcia_device handling */ | |
271 | ||
e7a480d2 | 272 | struct pcmcia_device * pcmcia_get_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
273 | { |
274 | struct device *tmp_dev; | |
275 | tmp_dev = get_device(&p_dev->dev); | |
276 | if (!tmp_dev) | |
277 | return NULL; | |
278 | return to_pcmcia_dev(tmp_dev); | |
279 | } | |
280 | ||
e7a480d2 | 281 | void pcmcia_put_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
282 | { |
283 | if (p_dev) | |
284 | put_device(&p_dev->dev); | |
285 | } | |
286 | ||
360b65b9 DB |
287 | static void pcmcia_release_function(struct kref *ref) |
288 | { | |
289 | struct config_t *c = container_of(ref, struct config_t, ref); | |
d9d9ea01 | 290 | ds_dbg(1, "releasing config_t\n"); |
360b65b9 DB |
291 | kfree(c); |
292 | } | |
293 | ||
1da177e4 LT |
294 | static void pcmcia_release_dev(struct device *dev) |
295 | { | |
296 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
d9d9ea01 | 297 | ds_dbg(1, "releasing device %s\n", p_dev->dev.bus_id); |
dc109497 | 298 | pcmcia_put_socket(p_dev->socket); |
bd65a685 | 299 | kfree(p_dev->devname); |
360b65b9 | 300 | kref_put(&p_dev->function_config->ref, pcmcia_release_function); |
1da177e4 LT |
301 | kfree(p_dev); |
302 | } | |
303 | ||
1d2c9042 | 304 | static void pcmcia_add_device_later(struct pcmcia_socket *s, int mfc) |
82d56e6d DB |
305 | { |
306 | if (!s->pcmcia_state.device_add_pending) { | |
d9d9ea01 DB |
307 | ds_dbg(1, "scheduling to add %s secondary" |
308 | " device to %d\n", mfc ? "mfc" : "pfc", s->sock); | |
82d56e6d | 309 | s->pcmcia_state.device_add_pending = 1; |
1d2c9042 | 310 | s->pcmcia_state.mfc_pfc = mfc; |
82d56e6d DB |
311 | schedule_work(&s->device_add); |
312 | } | |
313 | return; | |
314 | } | |
1da177e4 LT |
315 | |
316 | static int pcmcia_device_probe(struct device * dev) | |
317 | { | |
318 | struct pcmcia_device *p_dev; | |
319 | struct pcmcia_driver *p_drv; | |
82d56e6d | 320 | struct pcmcia_device_id *did; |
f8cfa618 | 321 | struct pcmcia_socket *s; |
af2b3b50 | 322 | cistpl_config_t cis_config; |
1da177e4 LT |
323 | int ret = 0; |
324 | ||
325 | dev = get_device(dev); | |
326 | if (!dev) | |
327 | return -ENODEV; | |
328 | ||
329 | p_dev = to_pcmcia_dev(dev); | |
330 | p_drv = to_pcmcia_drv(dev->driver); | |
f8cfa618 | 331 | s = p_dev->socket; |
1da177e4 | 332 | |
d9d9ea01 DB |
333 | ds_dbg(1, "trying to bind %s to %s\n", p_dev->dev.bus_id, |
334 | p_drv->drv.name); | |
335 | ||
360b65b9 DB |
336 | if ((!p_drv->probe) || (!p_dev->function_config) || |
337 | (!try_module_get(p_drv->owner))) { | |
1da177e4 LT |
338 | ret = -EINVAL; |
339 | goto put_dev; | |
340 | } | |
341 | ||
af2b3b50 DB |
342 | /* set up some more device information */ |
343 | ret = pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_CONFIG, | |
344 | &cis_config); | |
345 | if (!ret) { | |
346 | p_dev->conf.ConfigBase = cis_config.base; | |
347 | p_dev->conf.Present = cis_config.rmask[0]; | |
348 | } else { | |
349 | printk(KERN_INFO "pcmcia: could not parse base and rmask0 of CIS\n"); | |
350 | p_dev->conf.ConfigBase = 0; | |
351 | p_dev->conf.Present = 0; | |
352 | } | |
353 | ||
f8cfa618 | 354 | ret = p_drv->probe(p_dev); |
d9d9ea01 DB |
355 | if (ret) { |
356 | ds_dbg(1, "binding %s to %s failed with %d\n", | |
357 | p_dev->dev.bus_id, p_drv->drv.name, ret); | |
82d56e6d | 358 | goto put_module; |
d9d9ea01 | 359 | } |
82d56e6d DB |
360 | |
361 | /* handle pseudo multifunction devices: | |
362 | * there are at most two pseudo multifunction devices. | |
363 | * if we're matching against the first, schedule a | |
364 | * call which will then check whether there are two | |
365 | * pseudo devices, and if not, add the second one. | |
366 | */ | |
80a55e92 | 367 | did = p_dev->dev.driver_data; |
4ceadbf5 | 368 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
82d56e6d | 369 | (p_dev->socket->device_count == 1) && (p_dev->device_no == 0)) |
1d2c9042 | 370 | pcmcia_add_device_later(p_dev->socket, 0); |
f8cfa618 DB |
371 | |
372 | put_module: | |
1da177e4 LT |
373 | if (ret) |
374 | module_put(p_drv->owner); | |
375 | put_dev: | |
f8cfa618 | 376 | if (ret) |
1da177e4 LT |
377 | put_device(dev); |
378 | return (ret); | |
379 | } | |
380 | ||
381 | ||
d6ff5a85 DB |
382 | /* |
383 | * Removes a PCMCIA card from the device tree and socket list. | |
384 | */ | |
385 | static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *leftover) | |
386 | { | |
387 | struct pcmcia_device *p_dev; | |
388 | struct pcmcia_device *tmp; | |
389 | unsigned long flags; | |
390 | ||
d9d9ea01 DB |
391 | ds_dbg(2, "pcmcia_card_remove(%d) %s\n", s->sock, |
392 | leftover ? leftover->devname : ""); | |
d6ff5a85 DB |
393 | |
394 | if (!leftover) | |
395 | s->device_count = 0; | |
396 | else | |
397 | s->device_count = 1; | |
398 | ||
399 | /* unregister all pcmcia_devices registered with this socket, except leftover */ | |
400 | list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) { | |
401 | if (p_dev == leftover) | |
402 | continue; | |
403 | ||
404 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
405 | list_del(&p_dev->socket_device_list); | |
406 | p_dev->_removed=1; | |
407 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
408 | ||
d9d9ea01 | 409 | ds_dbg(2, "unregistering device %s\n", p_dev->dev.bus_id); |
d6ff5a85 DB |
410 | device_unregister(&p_dev->dev); |
411 | } | |
412 | ||
413 | return; | |
414 | } | |
415 | ||
1da177e4 LT |
416 | static int pcmcia_device_remove(struct device * dev) |
417 | { | |
418 | struct pcmcia_device *p_dev; | |
419 | struct pcmcia_driver *p_drv; | |
d6ff5a85 | 420 | struct pcmcia_device_id *did; |
cc3b4866 | 421 | int i; |
1da177e4 | 422 | |
1da177e4 LT |
423 | p_dev = to_pcmcia_dev(dev); |
424 | p_drv = to_pcmcia_drv(dev->driver); | |
d6ff5a85 | 425 | |
d9d9ea01 DB |
426 | ds_dbg(1, "removing device %s\n", p_dev->dev.bus_id); |
427 | ||
d6ff5a85 DB |
428 | /* If we're removing the primary module driving a |
429 | * pseudo multi-function card, we need to unbind | |
430 | * all devices | |
431 | */ | |
80a55e92 | 432 | did = p_dev->dev.driver_data; |
b2f51a1c | 433 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
d6ff5a85 DB |
434 | (p_dev->socket->device_count != 0) && |
435 | (p_dev->device_no == 0)) | |
436 | pcmcia_card_remove(p_dev->socket, p_dev); | |
437 | ||
438 | /* detach the "instance" */ | |
f3990715 DB |
439 | if (!p_drv) |
440 | return 0; | |
1da177e4 | 441 | |
f3990715 | 442 | if (p_drv->remove) |
cc3b4866 DB |
443 | p_drv->remove(p_dev); |
444 | ||
a0aab143 DB |
445 | p_dev->dev_node = NULL; |
446 | ||
f3990715 | 447 | /* check for proper unloading */ |
e2d40963 | 448 | if (p_dev->_irq || p_dev->_io || p_dev->_locked) |
f3990715 DB |
449 | printk(KERN_INFO "pcmcia: driver %s did not release config properly\n", |
450 | p_drv->drv.name); | |
cc3b4866 | 451 | |
f3990715 | 452 | for (i = 0; i < MAX_WIN; i++) |
e2d40963 | 453 | if (p_dev->_win & CLIENT_WIN_REQ(i)) |
f3990715 DB |
454 | printk(KERN_INFO "pcmcia: driver %s did not release windows properly\n", |
455 | p_drv->drv.name); | |
cc3b4866 | 456 | |
f3990715 DB |
457 | /* references from pcmcia_probe_device */ |
458 | pcmcia_put_dev(p_dev); | |
459 | module_put(p_drv->owner); | |
1da177e4 LT |
460 | |
461 | return 0; | |
462 | } | |
463 | ||
464 | ||
1da177e4 LT |
465 | /* |
466 | * pcmcia_device_query -- determine information about a pcmcia device | |
467 | */ | |
468 | static int pcmcia_device_query(struct pcmcia_device *p_dev) | |
469 | { | |
470 | cistpl_manfid_t manf_id; | |
471 | cistpl_funcid_t func_id; | |
76fa82fb | 472 | cistpl_vers_1_t *vers1; |
1da177e4 LT |
473 | unsigned int i; |
474 | ||
76fa82fb IM |
475 | vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL); |
476 | if (!vers1) | |
477 | return -ENOMEM; | |
478 | ||
1da177e4 LT |
479 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
480 | CISTPL_MANFID, &manf_id)) { | |
481 | p_dev->manf_id = manf_id.manf; | |
482 | p_dev->card_id = manf_id.card; | |
483 | p_dev->has_manf_id = 1; | |
484 | p_dev->has_card_id = 1; | |
485 | } | |
486 | ||
487 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, | |
488 | CISTPL_FUNCID, &func_id)) { | |
489 | p_dev->func_id = func_id.func; | |
490 | p_dev->has_func_id = 1; | |
491 | } else { | |
492 | /* rule of thumb: cards with no FUNCID, but with | |
493 | * common memory device geometry information, are | |
494 | * probably memory cards (from pcmcia-cs) */ | |
76fa82fb IM |
495 | cistpl_device_geo_t *devgeo; |
496 | ||
497 | devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL); | |
498 | if (!devgeo) { | |
499 | kfree(vers1); | |
500 | return -ENOMEM; | |
501 | } | |
1da177e4 | 502 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
76fa82fb | 503 | CISTPL_DEVICE_GEO, devgeo)) { |
1da177e4 LT |
504 | ds_dbg(0, "mem device geometry probably means " |
505 | "FUNCID_MEMORY\n"); | |
506 | p_dev->func_id = CISTPL_FUNCID_MEMORY; | |
507 | p_dev->has_func_id = 1; | |
508 | } | |
76fa82fb | 509 | kfree(devgeo); |
1da177e4 LT |
510 | } |
511 | ||
512 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_VERS_1, | |
76fa82fb IM |
513 | vers1)) { |
514 | for (i=0; i < vers1->ns; i++) { | |
1da177e4 LT |
515 | char *tmp; |
516 | unsigned int length; | |
517 | ||
76fa82fb | 518 | tmp = vers1->str + vers1->ofs[i]; |
1da177e4 LT |
519 | |
520 | length = strlen(tmp) + 1; | |
6e3d4f25 | 521 | if ((length < 2) || (length > 255)) |
1da177e4 LT |
522 | continue; |
523 | ||
524 | p_dev->prod_id[i] = kmalloc(sizeof(char) * length, | |
525 | GFP_KERNEL); | |
526 | if (!p_dev->prod_id[i]) | |
527 | continue; | |
528 | ||
529 | p_dev->prod_id[i] = strncpy(p_dev->prod_id[i], | |
530 | tmp, length); | |
531 | } | |
532 | } | |
533 | ||
76fa82fb | 534 | kfree(vers1); |
1da177e4 LT |
535 | return 0; |
536 | } | |
537 | ||
538 | ||
539 | /* device_add_lock is needed to avoid double registration by cardmgr and kernel. | |
540 | * Serializes pcmcia_device_add; will most likely be removed in future. | |
541 | * | |
542 | * While it has the caveat that adding new PCMCIA devices inside(!) device_register() | |
543 | * won't work, this doesn't matter much at the moment: the driver core doesn't | |
544 | * support it either. | |
545 | */ | |
7fe908dd | 546 | static DEFINE_MUTEX(device_add_lock); |
1da177e4 | 547 | |
dc109497 | 548 | struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function) |
1da177e4 | 549 | { |
360b65b9 | 550 | struct pcmcia_device *p_dev, *tmp_dev; |
1da177e4 | 551 | unsigned long flags; |
bd65a685 | 552 | int bus_id_len; |
1da177e4 | 553 | |
dc109497 | 554 | s = pcmcia_get_socket(s); |
1da177e4 LT |
555 | if (!s) |
556 | return NULL; | |
557 | ||
7fe908dd | 558 | mutex_lock(&device_add_lock); |
1da177e4 | 559 | |
d9d9ea01 DB |
560 | ds_dbg(3, "adding device to %d, function %d\n", s->sock, function); |
561 | ||
6cf5be51 DB |
562 | /* max of 4 devices per card */ |
563 | if (s->device_count == 4) | |
1ad275e3 DB |
564 | goto err_put; |
565 | ||
8084b372 | 566 | p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL); |
1da177e4 LT |
567 | if (!p_dev) |
568 | goto err_put; | |
1da177e4 | 569 | |
dc109497 | 570 | p_dev->socket = s; |
1da177e4 LT |
571 | p_dev->device_no = (s->device_count++); |
572 | p_dev->func = function; | |
573 | ||
574 | p_dev->dev.bus = &pcmcia_bus_type; | |
87373318 | 575 | p_dev->dev.parent = s->dev.parent; |
1da177e4 | 576 | p_dev->dev.release = pcmcia_release_dev; |
bd65a685 BG |
577 | bus_id_len = sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no); |
578 | ||
579 | p_dev->devname = kmalloc(6 + bus_id_len + 1, GFP_KERNEL); | |
580 | if (!p_dev->devname) | |
581 | goto err_free; | |
582 | sprintf (p_dev->devname, "pcmcia%s", p_dev->dev.bus_id); | |
d9d9ea01 | 583 | ds_dbg(3, "devname is %s\n", p_dev->devname); |
1da177e4 | 584 | |
1da177e4 | 585 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
360b65b9 DB |
586 | |
587 | /* | |
588 | * p_dev->function_config must be the same for all card functions. | |
589 | * Note that this is serialized by the device_add_lock, so that | |
590 | * only one such struct will be created. | |
591 | */ | |
592 | list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list) | |
593 | if (p_dev->func == tmp_dev->func) { | |
594 | p_dev->function_config = tmp_dev->function_config; | |
595 | kref_get(&p_dev->function_config->ref); | |
596 | } | |
597 | ||
598 | /* Add to the list in pcmcia_bus_socket */ | |
6171b88b | 599 | list_add(&p_dev->socket_device_list, &s->devices_list); |
360b65b9 | 600 | |
1da177e4 LT |
601 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
602 | ||
360b65b9 | 603 | if (!p_dev->function_config) { |
d9d9ea01 | 604 | ds_dbg(3, "creating config_t for %s\n", p_dev->dev.bus_id); |
360b65b9 DB |
605 | p_dev->function_config = kzalloc(sizeof(struct config_t), |
606 | GFP_KERNEL); | |
607 | if (!p_dev->function_config) | |
608 | goto err_unreg; | |
609 | kref_init(&p_dev->function_config->ref); | |
610 | } | |
611 | ||
807277cb DB |
612 | printk(KERN_NOTICE "pcmcia: registering new device %s\n", |
613 | p_dev->devname); | |
614 | ||
1ad275e3 DB |
615 | pcmcia_device_query(p_dev); |
616 | ||
360b65b9 DB |
617 | if (device_register(&p_dev->dev)) |
618 | goto err_unreg; | |
1da177e4 | 619 | |
7fe908dd | 620 | mutex_unlock(&device_add_lock); |
1da177e4 LT |
621 | |
622 | return p_dev; | |
623 | ||
360b65b9 DB |
624 | err_unreg: |
625 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
626 | list_del(&p_dev->socket_device_list); | |
627 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
628 | ||
1da177e4 | 629 | err_free: |
bd65a685 | 630 | kfree(p_dev->devname); |
1da177e4 LT |
631 | kfree(p_dev); |
632 | s->device_count--; | |
633 | err_put: | |
7fe908dd | 634 | mutex_unlock(&device_add_lock); |
dc109497 | 635 | pcmcia_put_socket(s); |
1da177e4 LT |
636 | |
637 | return NULL; | |
638 | } | |
639 | ||
640 | ||
641 | static int pcmcia_card_add(struct pcmcia_socket *s) | |
642 | { | |
643 | cisinfo_t cisinfo; | |
644 | cistpl_longlink_mfc_t mfc; | |
645 | unsigned int no_funcs, i; | |
646 | int ret = 0; | |
647 | ||
d9d9ea01 DB |
648 | if (!(s->resource_setup_done)) { |
649 | ds_dbg(3, "no resources available, delaying card_add\n"); | |
1da177e4 | 650 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 651 | } |
1da177e4 | 652 | |
d9d9ea01 DB |
653 | if (pcmcia_validate_mem(s)) { |
654 | ds_dbg(3, "validating mem resources failed, " | |
655 | "delaying card_add\n"); | |
de75914e | 656 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 657 | } |
de75914e | 658 | |
1da177e4 LT |
659 | ret = pccard_validate_cis(s, BIND_FN_ALL, &cisinfo); |
660 | if (ret || !cisinfo.Chains) { | |
661 | ds_dbg(0, "invalid CIS or invalid resources\n"); | |
662 | return -ENODEV; | |
663 | } | |
664 | ||
665 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
666 | no_funcs = mfc.nfn; | |
667 | else | |
668 | no_funcs = 1; | |
1d2c9042 | 669 | s->functions = no_funcs; |
1da177e4 | 670 | |
1da177e4 | 671 | for (i=0; i < no_funcs; i++) |
dc109497 | 672 | pcmcia_device_add(s, i); |
1da177e4 LT |
673 | |
674 | return (ret); | |
675 | } | |
676 | ||
677 | ||
4796b71f | 678 | static void pcmcia_delayed_add_device(struct work_struct *work) |
1ad275e3 | 679 | { |
c4028958 DH |
680 | struct pcmcia_socket *s = |
681 | container_of(work, struct pcmcia_socket, device_add); | |
d9d9ea01 | 682 | ds_dbg(1, "adding additional device to %d\n", s->sock); |
1d2c9042 | 683 | pcmcia_device_add(s, s->pcmcia_state.mfc_pfc); |
b5e43913 | 684 | s->pcmcia_state.device_add_pending = 0; |
1d2c9042 | 685 | s->pcmcia_state.mfc_pfc = 0; |
1ad275e3 DB |
686 | } |
687 | ||
e2f0b534 | 688 | static int pcmcia_requery(struct device *dev, void * _data) |
ff1fa9ef | 689 | { |
e2f0b534 | 690 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
d9d9ea01 DB |
691 | if (!p_dev->dev.driver) { |
692 | ds_dbg(1, "update device information for %s\n", | |
693 | p_dev->dev.bus_id); | |
e2f0b534 | 694 | pcmcia_device_query(p_dev); |
d9d9ea01 | 695 | } |
e2f0b534 DB |
696 | |
697 | return 0; | |
698 | } | |
699 | ||
4ae1cbf1 | 700 | static void pcmcia_bus_rescan(struct pcmcia_socket *skt, int new_cis) |
e2f0b534 | 701 | { |
4ae1cbf1 | 702 | int no_devices = 0; |
f901b8c4 | 703 | int ret = 0; |
e2f0b534 DB |
704 | unsigned long flags; |
705 | ||
7fe908dd | 706 | /* must be called with skt_mutex held */ |
d9d9ea01 DB |
707 | ds_dbg(0, "re-scanning socket %d\n", skt->sock); |
708 | ||
e2f0b534 | 709 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
dc109497 | 710 | if (list_empty(&skt->devices_list)) |
4ae1cbf1 | 711 | no_devices = 1; |
e2f0b534 DB |
712 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
713 | ||
4ae1cbf1 DB |
714 | /* If this is because of a CIS override, start over */ |
715 | if (new_cis && !no_devices) | |
716 | pcmcia_card_remove(skt, NULL); | |
717 | ||
e2f0b534 DB |
718 | /* if no devices were added for this socket yet because of |
719 | * missing resource information or other trouble, we need to | |
720 | * do this now. */ | |
4ae1cbf1 | 721 | if (no_devices || new_cis) { |
f901b8c4 | 722 | ret = pcmcia_card_add(skt); |
e2f0b534 DB |
723 | if (ret) |
724 | return; | |
725 | } | |
726 | ||
727 | /* some device information might have changed because of a CIS | |
728 | * update or because we can finally read it correctly... so | |
729 | * determine it again, overwriting old values if necessary. */ | |
730 | bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery); | |
731 | ||
732 | /* we re-scan all devices, not just the ones connected to this | |
733 | * socket. This does not matter, though. */ | |
f901b8c4 DB |
734 | ret = bus_rescan_devices(&pcmcia_bus_type); |
735 | if (ret) | |
736 | printk(KERN_INFO "pcmcia: bus_rescan_devices failed\n"); | |
ff1fa9ef | 737 | } |
1ad275e3 | 738 | |
1d2c9042 DB |
739 | #ifdef CONFIG_PCMCIA_LOAD_CIS |
740 | ||
741 | /** | |
742 | * pcmcia_load_firmware - load CIS from userspace if device-provided is broken | |
743 | * @dev - the pcmcia device which needs a CIS override | |
744 | * @filename - requested filename in /lib/firmware/ | |
745 | * | |
746 | * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if | |
747 | * the one provided by the card is broken. The firmware files reside in | |
748 | * /lib/firmware/ in userspace. | |
749 | */ | |
750 | static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
751 | { | |
752 | struct pcmcia_socket *s = dev->socket; | |
753 | const struct firmware *fw; | |
754 | char path[20]; | |
755 | int ret = -ENOMEM; | |
756 | int no_funcs; | |
757 | int old_funcs; | |
758 | cisdump_t *cis; | |
759 | cistpl_longlink_mfc_t mfc; | |
760 | ||
761 | if (!filename) | |
762 | return -EINVAL; | |
763 | ||
d9d9ea01 | 764 | ds_dbg(1, "trying to load CIS file %s\n", filename); |
1d2c9042 | 765 | |
d9d9ea01 DB |
766 | if (strlen(filename) > 14) { |
767 | printk(KERN_WARNING "pcmcia: CIS filename is too long\n"); | |
1d2c9042 | 768 | return -EINVAL; |
d9d9ea01 | 769 | } |
1d2c9042 DB |
770 | |
771 | snprintf(path, 20, "%s", filename); | |
772 | ||
773 | if (request_firmware(&fw, path, &dev->dev) == 0) { | |
d9d9ea01 DB |
774 | if (fw->size >= CISTPL_MAX_CIS_SIZE) { |
775 | ret = -EINVAL; | |
776 | printk(KERN_ERR "pcmcia: CIS override is too big\n"); | |
1d2c9042 | 777 | goto release; |
d9d9ea01 | 778 | } |
1d2c9042 DB |
779 | |
780 | cis = kzalloc(sizeof(cisdump_t), GFP_KERNEL); | |
d9d9ea01 DB |
781 | if (!cis) { |
782 | ret = -ENOMEM; | |
1d2c9042 | 783 | goto release; |
d9d9ea01 | 784 | } |
1d2c9042 DB |
785 | |
786 | cis->Length = fw->size + 1; | |
787 | memcpy(cis->Data, fw->data, fw->size); | |
788 | ||
789 | if (!pcmcia_replace_cis(s, cis)) | |
790 | ret = 0; | |
d9d9ea01 DB |
791 | else { |
792 | printk(KERN_ERR "pcmcia: CIS override failed\n"); | |
793 | goto release; | |
794 | } | |
795 | ||
1d2c9042 DB |
796 | |
797 | /* update information */ | |
798 | pcmcia_device_query(dev); | |
799 | ||
800 | /* does this cis override add or remove functions? */ | |
801 | old_funcs = s->functions; | |
802 | ||
803 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
804 | no_funcs = mfc.nfn; | |
805 | else | |
806 | no_funcs = 1; | |
807 | s->functions = no_funcs; | |
808 | ||
809 | if (old_funcs > no_funcs) | |
810 | pcmcia_card_remove(s, dev); | |
811 | else if (no_funcs > old_funcs) | |
812 | pcmcia_add_device_later(s, 1); | |
813 | } | |
814 | release: | |
815 | release_firmware(fw); | |
816 | ||
817 | return (ret); | |
818 | } | |
819 | ||
820 | #else /* !CONFIG_PCMCIA_LOAD_CIS */ | |
821 | ||
822 | static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
823 | { | |
824 | return -ENODEV; | |
825 | } | |
826 | ||
827 | #endif | |
828 | ||
829 | ||
1ad275e3 DB |
830 | static inline int pcmcia_devmatch(struct pcmcia_device *dev, |
831 | struct pcmcia_device_id *did) | |
832 | { | |
833 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) { | |
834 | if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id)) | |
835 | return 0; | |
836 | } | |
837 | ||
838 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) { | |
839 | if ((!dev->has_card_id) || (dev->card_id != did->card_id)) | |
840 | return 0; | |
841 | } | |
842 | ||
843 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) { | |
844 | if (dev->func != did->function) | |
845 | return 0; | |
846 | } | |
847 | ||
848 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) { | |
849 | if (!dev->prod_id[0]) | |
850 | return 0; | |
851 | if (strcmp(did->prod_id[0], dev->prod_id[0])) | |
852 | return 0; | |
853 | } | |
854 | ||
855 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) { | |
856 | if (!dev->prod_id[1]) | |
857 | return 0; | |
858 | if (strcmp(did->prod_id[1], dev->prod_id[1])) | |
859 | return 0; | |
860 | } | |
861 | ||
862 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) { | |
863 | if (!dev->prod_id[2]) | |
864 | return 0; | |
865 | if (strcmp(did->prod_id[2], dev->prod_id[2])) | |
866 | return 0; | |
867 | } | |
868 | ||
869 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) { | |
870 | if (!dev->prod_id[3]) | |
871 | return 0; | |
872 | if (strcmp(did->prod_id[3], dev->prod_id[3])) | |
873 | return 0; | |
874 | } | |
875 | ||
876 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { | |
1ad275e3 DB |
877 | if (dev->device_no != did->device_no) |
878 | return 0; | |
879 | } | |
880 | ||
881 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { | |
882 | if ((!dev->has_func_id) || (dev->func_id != did->func_id)) | |
883 | return 0; | |
884 | ||
885 | /* if this is a pseudo-multi-function device, | |
886 | * we need explicit matches */ | |
887 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) | |
888 | return 0; | |
889 | if (dev->device_no) | |
890 | return 0; | |
891 | ||
892 | /* also, FUNC_ID matching needs to be activated by userspace | |
893 | * after it has re-checked that there is no possible module | |
894 | * with a prod_id/manf_id/card_id match. | |
895 | */ | |
d9d9ea01 DB |
896 | ds_dbg(0, "skipping FUNC_ID match for %s until userspace " |
897 | "interaction\n", dev->dev.bus_id); | |
1ad275e3 DB |
898 | if (!dev->allow_func_id_match) |
899 | return 0; | |
900 | } | |
901 | ||
ea7b3882 | 902 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { |
d9d9ea01 | 903 | ds_dbg(0, "device %s needs a fake CIS\n", dev->dev.bus_id); |
daa9517d DB |
904 | if (!dev->socket->fake_cis) |
905 | pcmcia_load_firmware(dev, did->cisfile); | |
906 | ||
907 | if (!dev->socket->fake_cis) | |
ea7b3882 | 908 | return 0; |
ea7b3882 DB |
909 | } |
910 | ||
f602ff7e DB |
911 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { |
912 | int i; | |
913 | for (i=0; i<4; i++) | |
914 | if (dev->prod_id[i]) | |
915 | return 0; | |
916 | if (dev->has_manf_id || dev->has_card_id || dev->has_func_id) | |
917 | return 0; | |
918 | } | |
919 | ||
1ad275e3 DB |
920 | dev->dev.driver_data = (void *) did; |
921 | ||
922 | return 1; | |
923 | } | |
924 | ||
925 | ||
1da177e4 LT |
926 | static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) { |
927 | struct pcmcia_device * p_dev = to_pcmcia_dev(dev); | |
928 | struct pcmcia_driver * p_drv = to_pcmcia_drv(drv); | |
1ad275e3 | 929 | struct pcmcia_device_id *did = p_drv->id_table; |
1da177e4 | 930 | |
0e0fad8f | 931 | #ifdef CONFIG_PCMCIA_IOCTL |
1da177e4 | 932 | /* matching by cardmgr */ |
d9d9ea01 DB |
933 | if (p_dev->cardmgr == p_drv) { |
934 | ds_dbg(0, "cardmgr matched %s to %s\n", dev->bus_id, | |
935 | drv->name); | |
1da177e4 | 936 | return 1; |
d9d9ea01 | 937 | } |
0e0fad8f | 938 | #endif |
1da177e4 | 939 | |
1ad275e3 | 940 | while (did && did->match_flags) { |
d9d9ea01 DB |
941 | ds_dbg(3, "trying to match %s to %s\n", dev->bus_id, |
942 | drv->name); | |
943 | if (pcmcia_devmatch(p_dev, did)) { | |
944 | ds_dbg(0, "matched %s to %s\n", dev->bus_id, | |
945 | drv->name); | |
1ad275e3 | 946 | return 1; |
d9d9ea01 | 947 | } |
1ad275e3 DB |
948 | did++; |
949 | } | |
950 | ||
1da177e4 LT |
951 | return 0; |
952 | } | |
953 | ||
840c2ac5 DB |
954 | #ifdef CONFIG_HOTPLUG |
955 | ||
312c004d KS |
956 | static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, |
957 | char *buffer, int buffer_size) | |
840c2ac5 DB |
958 | { |
959 | struct pcmcia_device *p_dev; | |
960 | int i, length = 0; | |
961 | u32 hash[4] = { 0, 0, 0, 0}; | |
962 | ||
963 | if (!dev) | |
964 | return -ENODEV; | |
965 | ||
966 | p_dev = to_pcmcia_dev(dev); | |
967 | ||
968 | /* calculate hashes */ | |
969 | for (i=0; i<4; i++) { | |
970 | if (!p_dev->prod_id[i]) | |
971 | continue; | |
972 | hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); | |
973 | } | |
974 | ||
975 | i = 0; | |
976 | ||
312c004d KS |
977 | if (add_uevent_var(envp, num_envp, &i, |
978 | buffer, buffer_size, &length, | |
979 | "SOCKET_NO=%u", | |
980 | p_dev->socket->sock)) | |
840c2ac5 DB |
981 | return -ENOMEM; |
982 | ||
312c004d KS |
983 | if (add_uevent_var(envp, num_envp, &i, |
984 | buffer, buffer_size, &length, | |
985 | "DEVICE_NO=%02X", | |
986 | p_dev->device_no)) | |
840c2ac5 DB |
987 | return -ENOMEM; |
988 | ||
312c004d KS |
989 | if (add_uevent_var(envp, num_envp, &i, |
990 | buffer, buffer_size, &length, | |
991 | "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
992 | "pa%08Xpb%08Xpc%08Xpd%08X", | |
993 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
994 | p_dev->has_card_id ? p_dev->card_id : 0, | |
995 | p_dev->has_func_id ? p_dev->func_id : 0, | |
996 | p_dev->func, | |
997 | p_dev->device_no, | |
998 | hash[0], | |
999 | hash[1], | |
1000 | hash[2], | |
1001 | hash[3])) | |
840c2ac5 DB |
1002 | return -ENOMEM; |
1003 | ||
1004 | envp[i] = NULL; | |
1005 | ||
1006 | return 0; | |
1007 | } | |
1008 | ||
1009 | #else | |
1010 | ||
312c004d | 1011 | static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, |
840c2ac5 DB |
1012 | char *buffer, int buffer_size) |
1013 | { | |
1014 | return -ENODEV; | |
1015 | } | |
1016 | ||
1017 | #endif | |
1018 | ||
1da177e4 LT |
1019 | /************************ per-device sysfs output ***************************/ |
1020 | ||
1021 | #define pcmcia_device_attr(field, test, format) \ | |
e404e274 | 1022 | static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1023 | { \ |
1024 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
1025 | return p_dev->test ? sprintf (buf, format, p_dev->field) : -ENODEV; \ | |
1026 | } | |
1027 | ||
1028 | #define pcmcia_device_stringattr(name, field) \ | |
e404e274 | 1029 | static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1030 | { \ |
1031 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
1032 | return p_dev->field ? sprintf (buf, "%s\n", p_dev->field) : -ENODEV; \ | |
1033 | } | |
1034 | ||
1035 | pcmcia_device_attr(func, socket, "0x%02x\n"); | |
1036 | pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); | |
1037 | pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); | |
1038 | pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); | |
1039 | pcmcia_device_stringattr(prod_id1, prod_id[0]); | |
1040 | pcmcia_device_stringattr(prod_id2, prod_id[1]); | |
1041 | pcmcia_device_stringattr(prod_id3, prod_id[2]); | |
1042 | pcmcia_device_stringattr(prod_id4, prod_id[3]); | |
1043 | ||
db1019ca DB |
1044 | |
1045 | static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf) | |
1046 | { | |
1047 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1048 | ||
f6fbe01a | 1049 | if (p_dev->suspended) |
db1019ca DB |
1050 | return sprintf(buf, "off\n"); |
1051 | else | |
1052 | return sprintf(buf, "on\n"); | |
1053 | } | |
1054 | ||
1055 | static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr, | |
1056 | const char *buf, size_t count) | |
1057 | { | |
1058 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1059 | int ret = 0; | |
1060 | ||
1061 | if (!count) | |
1062 | return -EINVAL; | |
1063 | ||
f6fbe01a | 1064 | if ((!p_dev->suspended) && !strncmp(buf, "off", 3)) |
db1019ca | 1065 | ret = dpm_runtime_suspend(dev, PMSG_SUSPEND); |
f6fbe01a | 1066 | else if (p_dev->suspended && !strncmp(buf, "on", 2)) |
db1019ca DB |
1067 | dpm_runtime_resume(dev); |
1068 | ||
1069 | return ret ? ret : count; | |
1070 | } | |
1071 | ||
1072 | ||
3704511b | 1073 | static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) |
3248ff43 DB |
1074 | { |
1075 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1076 | int i; | |
1077 | u32 hash[4] = { 0, 0, 0, 0}; | |
1078 | ||
1079 | /* calculate hashes */ | |
1080 | for (i=0; i<4; i++) { | |
1081 | if (!p_dev->prod_id[i]) | |
1082 | continue; | |
1083 | hash[i] = crc32(0,p_dev->prod_id[i],strlen(p_dev->prod_id[i])); | |
1084 | } | |
1085 | return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
1086 | "pa%08Xpb%08Xpc%08Xpd%08X\n", | |
1087 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1088 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1089 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1090 | p_dev->func, p_dev->device_no, | |
1091 | hash[0], hash[1], hash[2], hash[3]); | |
1092 | } | |
a5b55778 | 1093 | |
3248ff43 DB |
1094 | static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, |
1095 | struct device_attribute *attr, const char *buf, size_t count) | |
a5b55778 DB |
1096 | { |
1097 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
f901b8c4 | 1098 | int ret; |
db1019ca DB |
1099 | |
1100 | if (!count) | |
1101 | return -EINVAL; | |
a5b55778 | 1102 | |
7fe908dd | 1103 | mutex_lock(&p_dev->socket->skt_mutex); |
a5b55778 | 1104 | p_dev->allow_func_id_match = 1; |
7fe908dd | 1105 | mutex_unlock(&p_dev->socket->skt_mutex); |
a5b55778 | 1106 | |
f901b8c4 DB |
1107 | ret = bus_rescan_devices(&pcmcia_bus_type); |
1108 | if (ret) | |
1109 | printk(KERN_INFO "pcmcia: bus_rescan_devices failed after " | |
1110 | "allowing func_id matches\n"); | |
a5b55778 DB |
1111 | |
1112 | return count; | |
1113 | } | |
1114 | ||
1da177e4 LT |
1115 | static struct device_attribute pcmcia_dev_attrs[] = { |
1116 | __ATTR(function, 0444, func_show, NULL), | |
db1019ca | 1117 | __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state), |
1da177e4 LT |
1118 | __ATTR_RO(func_id), |
1119 | __ATTR_RO(manf_id), | |
1120 | __ATTR_RO(card_id), | |
1121 | __ATTR_RO(prod_id1), | |
1122 | __ATTR_RO(prod_id2), | |
1123 | __ATTR_RO(prod_id3), | |
1124 | __ATTR_RO(prod_id4), | |
3248ff43 | 1125 | __ATTR_RO(modalias), |
a5b55778 | 1126 | __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), |
1da177e4 LT |
1127 | __ATTR_NULL, |
1128 | }; | |
1129 | ||
8e9e793d DB |
1130 | /* PM support, also needed for reset */ |
1131 | ||
1132 | static int pcmcia_dev_suspend(struct device * dev, pm_message_t state) | |
1133 | { | |
1134 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1135 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1136 | int ret = 0; |
8e9e793d | 1137 | |
d9d9ea01 DB |
1138 | ds_dbg(2, "suspending %s\n", dev->bus_id); |
1139 | ||
8e9e793d DB |
1140 | if (dev->driver) |
1141 | p_drv = to_pcmcia_drv(dev->driver); | |
1142 | ||
e2d40963 DB |
1143 | if (!p_drv) |
1144 | goto out; | |
1145 | ||
1146 | if (p_drv->suspend) { | |
8661bb5b | 1147 | ret = p_drv->suspend(p_dev); |
d9d9ea01 DB |
1148 | if (ret) { |
1149 | printk(KERN_ERR "pcmcia: device %s (driver %s) did " | |
1150 | "not want to go to sleep (%d)\n", | |
1151 | p_dev->devname, p_drv->drv.name, ret); | |
f6fbe01a | 1152 | goto out; |
d9d9ea01 | 1153 | } |
8661bb5b | 1154 | } |
8e9e793d | 1155 | |
d9d9ea01 DB |
1156 | if (p_dev->device_no == p_dev->func) { |
1157 | ds_dbg(2, "releasing configuration for %s\n", dev->bus_id); | |
e2d40963 | 1158 | pcmcia_release_configuration(p_dev); |
d9d9ea01 | 1159 | } |
e2d40963 | 1160 | |
f6fbe01a DB |
1161 | out: |
1162 | if (!ret) | |
1163 | p_dev->suspended = 1; | |
1164 | return ret; | |
8e9e793d DB |
1165 | } |
1166 | ||
1167 | ||
1168 | static int pcmcia_dev_resume(struct device * dev) | |
1169 | { | |
1170 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1171 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1172 | int ret = 0; |
8e9e793d | 1173 | |
d9d9ea01 DB |
1174 | ds_dbg(2, "resuming %s\n", dev->bus_id); |
1175 | ||
8e9e793d DB |
1176 | if (dev->driver) |
1177 | p_drv = to_pcmcia_drv(dev->driver); | |
1178 | ||
e2d40963 DB |
1179 | if (!p_drv) |
1180 | goto out; | |
1181 | ||
1182 | if (p_dev->device_no == p_dev->func) { | |
d9d9ea01 | 1183 | ds_dbg(2, "requesting configuration for %s\n", dev->bus_id); |
e2d40963 DB |
1184 | ret = pcmcia_request_configuration(p_dev, &p_dev->conf); |
1185 | if (ret) | |
1186 | goto out; | |
8661bb5b | 1187 | } |
8e9e793d | 1188 | |
e2d40963 DB |
1189 | if (p_drv->resume) |
1190 | ret = p_drv->resume(p_dev); | |
1191 | ||
f6fbe01a DB |
1192 | out: |
1193 | if (!ret) | |
1194 | p_dev->suspended = 0; | |
1195 | return ret; | |
8e9e793d DB |
1196 | } |
1197 | ||
1198 | ||
1199 | static int pcmcia_bus_suspend_callback(struct device *dev, void * _data) | |
1200 | { | |
1201 | struct pcmcia_socket *skt = _data; | |
1202 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1203 | ||
1204 | if (p_dev->socket != skt) | |
1205 | return 0; | |
1206 | ||
1207 | return dpm_runtime_suspend(dev, PMSG_SUSPEND); | |
1208 | } | |
1209 | ||
1210 | static int pcmcia_bus_resume_callback(struct device *dev, void * _data) | |
1211 | { | |
1212 | struct pcmcia_socket *skt = _data; | |
1213 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1214 | ||
1215 | if (p_dev->socket != skt) | |
1216 | return 0; | |
1217 | ||
1218 | dpm_runtime_resume(dev); | |
1219 | ||
1220 | return 0; | |
1221 | } | |
1222 | ||
1223 | static int pcmcia_bus_resume(struct pcmcia_socket *skt) | |
1224 | { | |
d9d9ea01 | 1225 | ds_dbg(2, "resuming socket %d\n", skt->sock); |
8e9e793d DB |
1226 | bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback); |
1227 | return 0; | |
1228 | } | |
1229 | ||
1230 | static int pcmcia_bus_suspend(struct pcmcia_socket *skt) | |
1231 | { | |
d9d9ea01 | 1232 | ds_dbg(2, "suspending socket %d\n", skt->sock); |
8e9e793d DB |
1233 | if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt, |
1234 | pcmcia_bus_suspend_callback)) { | |
1235 | pcmcia_bus_resume(skt); | |
1236 | return -EIO; | |
1237 | } | |
1238 | return 0; | |
1239 | } | |
1240 | ||
1da177e4 | 1241 | |
1da177e4 LT |
1242 | /*====================================================================== |
1243 | ||
1244 | The card status event handler. | |
1245 | ||
1246 | ======================================================================*/ | |
1247 | ||
1da177e4 LT |
1248 | /* Normally, the event is passed to individual drivers after |
1249 | * informing userspace. Only for CS_EVENT_CARD_REMOVAL this | |
1250 | * is inversed to maintain historic compatibility. | |
1251 | */ | |
1252 | ||
1253 | static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) | |
1254 | { | |
dc109497 | 1255 | struct pcmcia_socket *s = pcmcia_get_socket(skt); |
1da177e4 | 1256 | |
1617406a FM |
1257 | if (!s) { |
1258 | printk(KERN_ERR "PCMCIA obtaining reference to socket %p " \ | |
1259 | "failed, event 0x%x lost!\n", skt, event); | |
1260 | return -ENODEV; | |
1261 | } | |
1262 | ||
1da177e4 | 1263 | ds_dbg(1, "ds_event(0x%06x, %d, 0x%p)\n", |
dc109497 | 1264 | event, priority, skt); |
1da177e4 | 1265 | |
f8cfa618 | 1266 | switch (event) { |
1da177e4 | 1267 | case CS_EVENT_CARD_REMOVAL: |
b5e43913 | 1268 | s->pcmcia_state.present = 0; |
d6ff5a85 | 1269 | pcmcia_card_remove(skt, NULL); |
dc109497 | 1270 | handle_event(skt, event); |
1da177e4 | 1271 | break; |
f8cfa618 | 1272 | |
1da177e4 | 1273 | case CS_EVENT_CARD_INSERTION: |
b5e43913 | 1274 | s->pcmcia_state.present = 1; |
1da177e4 | 1275 | pcmcia_card_add(skt); |
dc109497 | 1276 | handle_event(skt, event); |
1da177e4 LT |
1277 | break; |
1278 | ||
1279 | case CS_EVENT_EJECTION_REQUEST: | |
1da177e4 LT |
1280 | break; |
1281 | ||
8e9e793d DB |
1282 | case CS_EVENT_PM_SUSPEND: |
1283 | case CS_EVENT_PM_RESUME: | |
1284 | case CS_EVENT_RESET_PHYSICAL: | |
1285 | case CS_EVENT_CARD_RESET: | |
1da177e4 | 1286 | default: |
dc109497 | 1287 | handle_event(skt, event); |
1da177e4 LT |
1288 | break; |
1289 | } | |
1290 | ||
dc109497 DB |
1291 | pcmcia_put_socket(s); |
1292 | ||
1da177e4 LT |
1293 | return 0; |
1294 | } /* ds_event */ | |
1295 | ||
1296 | ||
9940ec36 DB |
1297 | struct pcmcia_device * pcmcia_dev_present(struct pcmcia_device *_p_dev) |
1298 | { | |
1299 | struct pcmcia_device *p_dev; | |
1300 | struct pcmcia_device *ret = NULL; | |
1301 | ||
1302 | p_dev = pcmcia_get_dev(_p_dev); | |
1303 | if (!p_dev) | |
1304 | return NULL; | |
1305 | ||
1306 | if (!p_dev->socket->pcmcia_state.present) | |
1307 | goto out; | |
1308 | ||
1309 | if (p_dev->_removed) | |
1310 | goto out; | |
1311 | ||
1312 | if (p_dev->suspended) | |
1313 | goto out; | |
1314 | ||
1315 | ret = p_dev; | |
1316 | out: | |
1317 | pcmcia_put_dev(p_dev); | |
1318 | return ret; | |
1319 | } | |
1320 | EXPORT_SYMBOL(pcmcia_dev_present); | |
1321 | ||
1322 | ||
90c6cdd1 DB |
1323 | static struct pcmcia_callback pcmcia_bus_callback = { |
1324 | .owner = THIS_MODULE, | |
1325 | .event = ds_event, | |
1326 | .requery = pcmcia_bus_rescan, | |
8e9e793d DB |
1327 | .suspend = pcmcia_bus_suspend, |
1328 | .resume = pcmcia_bus_resume, | |
90c6cdd1 DB |
1329 | }; |
1330 | ||
87373318 | 1331 | static int __devinit pcmcia_bus_add_socket(struct device *dev, |
d8539d81 | 1332 | struct class_interface *class_intf) |
1da177e4 | 1333 | { |
87373318 | 1334 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 LT |
1335 | int ret; |
1336 | ||
dc109497 DB |
1337 | socket = pcmcia_get_socket(socket); |
1338 | if (!socket) { | |
1da177e4 | 1339 | printk(KERN_ERR "PCMCIA obtaining reference to socket %p failed\n", socket); |
1da177e4 LT |
1340 | return -ENODEV; |
1341 | } | |
1342 | ||
1da177e4 LT |
1343 | /* |
1344 | * Ugly. But we want to wait for the socket threads to have started up. | |
1345 | * We really should let the drivers themselves drive some of this.. | |
1346 | */ | |
1347 | msleep(250); | |
1348 | ||
e7a480d2 | 1349 | #ifdef CONFIG_PCMCIA_IOCTL |
dc109497 | 1350 | init_waitqueue_head(&socket->queue); |
e7a480d2 | 1351 | #endif |
dc109497 | 1352 | INIT_LIST_HEAD(&socket->devices_list); |
4796b71f | 1353 | INIT_WORK(&socket->device_add, pcmcia_delayed_add_device); |
dc109497 DB |
1354 | memset(&socket->pcmcia_state, 0, sizeof(u8)); |
1355 | socket->device_count = 0; | |
1da177e4 | 1356 | |
90c6cdd1 | 1357 | ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback); |
1da177e4 LT |
1358 | if (ret) { |
1359 | printk(KERN_ERR "PCMCIA registration PCCard core failed for socket %p\n", socket); | |
dc109497 | 1360 | pcmcia_put_socket(socket); |
1da177e4 LT |
1361 | return (ret); |
1362 | } | |
1363 | ||
1364 | return 0; | |
1365 | } | |
1366 | ||
87373318 | 1367 | static void pcmcia_bus_remove_socket(struct device *dev, |
d8539d81 | 1368 | struct class_interface *class_intf) |
1da177e4 | 1369 | { |
87373318 | 1370 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 | 1371 | |
dc109497 | 1372 | if (!socket) |
1da177e4 LT |
1373 | return; |
1374 | ||
dc109497 | 1375 | socket->pcmcia_state.dead = 1; |
1da177e4 LT |
1376 | pccard_register_pcmcia(socket, NULL); |
1377 | ||
dfbc9e9d | 1378 | /* unregister any unbound devices */ |
8e4d9dcb | 1379 | mutex_lock(&socket->skt_mutex); |
dfbc9e9d | 1380 | pcmcia_card_remove(socket, NULL); |
8e4d9dcb | 1381 | mutex_unlock(&socket->skt_mutex); |
dfbc9e9d | 1382 | |
dc109497 | 1383 | pcmcia_put_socket(socket); |
1da177e4 LT |
1384 | |
1385 | return; | |
1386 | } | |
1387 | ||
1388 | ||
1389 | /* the pcmcia_bus_interface is used to handle pcmcia socket devices */ | |
1390 | static struct class_interface pcmcia_bus_interface = { | |
1391 | .class = &pcmcia_socket_class, | |
87373318 GKH |
1392 | .add_dev = &pcmcia_bus_add_socket, |
1393 | .remove_dev = &pcmcia_bus_remove_socket, | |
1da177e4 LT |
1394 | }; |
1395 | ||
1396 | ||
e7a480d2 | 1397 | struct bus_type pcmcia_bus_type = { |
1da177e4 | 1398 | .name = "pcmcia", |
312c004d | 1399 | .uevent = pcmcia_bus_uevent, |
1da177e4 LT |
1400 | .match = pcmcia_bus_match, |
1401 | .dev_attrs = pcmcia_dev_attrs, | |
1d0baa3a RK |
1402 | .probe = pcmcia_device_probe, |
1403 | .remove = pcmcia_device_remove, | |
8e9e793d DB |
1404 | .suspend = pcmcia_dev_suspend, |
1405 | .resume = pcmcia_dev_resume, | |
1da177e4 | 1406 | }; |
1da177e4 LT |
1407 | |
1408 | ||
1409 | static int __init init_pcmcia_bus(void) | |
1410 | { | |
ace7d477 RD |
1411 | int ret; |
1412 | ||
1da177e4 LT |
1413 | spin_lock_init(&pcmcia_dev_list_lock); |
1414 | ||
ace7d477 RD |
1415 | ret = bus_register(&pcmcia_bus_type); |
1416 | if (ret < 0) { | |
1417 | printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret); | |
1418 | return ret; | |
1419 | } | |
1420 | ret = class_interface_register(&pcmcia_bus_interface); | |
1421 | if (ret < 0) { | |
1422 | printk(KERN_WARNING | |
1423 | "pcmcia: class_interface_register error: %d\n", ret); | |
1424 | bus_unregister(&pcmcia_bus_type); | |
1425 | return ret; | |
1426 | } | |
1da177e4 | 1427 | |
e7a480d2 | 1428 | pcmcia_setup_ioctl(); |
1da177e4 LT |
1429 | |
1430 | return 0; | |
1431 | } | |
1432 | fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that | |
1433 | * pcmcia_socket_class is already registered */ | |
1434 | ||
1435 | ||
1436 | static void __exit exit_pcmcia_bus(void) | |
1437 | { | |
e7a480d2 | 1438 | pcmcia_cleanup_ioctl(); |
1da177e4 | 1439 | |
e7a480d2 | 1440 | class_interface_unregister(&pcmcia_bus_interface); |
1da177e4 LT |
1441 | |
1442 | bus_unregister(&pcmcia_bus_type); | |
1443 | } | |
1444 | module_exit(exit_pcmcia_bus); | |
1445 | ||
1446 | ||
1da177e4 | 1447 | MODULE_ALIAS("ds"); |