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> |
43d9f7fd | 26 | #include <linux/dma-mapping.h> |
1da177e4 | 27 | |
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 | |
6179b556 BW |
237 | struct pcmcia_dynid { |
238 | struct list_head node; | |
239 | struct pcmcia_device_id id; | |
240 | }; | |
241 | ||
242 | /** | |
243 | * pcmcia_store_new_id - add a new PCMCIA device ID to this driver and re-probe devices | |
244 | * @driver: target device driver | |
245 | * @buf: buffer for scanning device ID data | |
246 | * @count: input size | |
247 | * | |
248 | * Adds a new dynamic PCMCIA device ID to this driver, | |
249 | * and causes the driver to probe for all devices again. | |
250 | */ | |
251 | static ssize_t | |
252 | pcmcia_store_new_id(struct device_driver *driver, const char *buf, size_t count) | |
253 | { | |
254 | struct pcmcia_dynid *dynid; | |
255 | struct pcmcia_driver *pdrv = to_pcmcia_drv(driver); | |
256 | __u16 match_flags, manf_id, card_id; | |
257 | __u8 func_id, function, device_no; | |
258 | __u32 prod_id_hash[4] = {0, 0, 0, 0}; | |
259 | int fields=0; | |
260 | int retval = 0; | |
261 | ||
262 | fields = sscanf(buf, "%hx %hx %hx %hhx %hhx %hhx %x %x %x %x", | |
263 | &match_flags, &manf_id, &card_id, &func_id, &function, &device_no, | |
264 | &prod_id_hash[0], &prod_id_hash[1], &prod_id_hash[2], &prod_id_hash[3]); | |
265 | if (fields < 6) | |
266 | return -EINVAL; | |
267 | ||
268 | dynid = kzalloc(sizeof(struct pcmcia_dynid), GFP_KERNEL); | |
269 | if (!dynid) | |
270 | return -ENOMEM; | |
271 | ||
272 | INIT_LIST_HEAD(&dynid->node); | |
273 | dynid->id.match_flags = match_flags; | |
274 | dynid->id.manf_id = manf_id; | |
275 | dynid->id.card_id = card_id; | |
276 | dynid->id.func_id = func_id; | |
277 | dynid->id.function = function; | |
278 | dynid->id.device_no = device_no; | |
279 | memcpy(dynid->id.prod_id_hash, prod_id_hash, sizeof(__u32) * 4); | |
280 | ||
281 | spin_lock(&pdrv->dynids.lock); | |
282 | list_add_tail(&pdrv->dynids.list, &dynid->node); | |
283 | spin_unlock(&pdrv->dynids.lock); | |
284 | ||
285 | if (get_driver(&pdrv->drv)) { | |
286 | retval = driver_attach(&pdrv->drv); | |
287 | put_driver(&pdrv->drv); | |
288 | } | |
289 | ||
290 | if (retval) | |
291 | return retval; | |
292 | return count; | |
293 | } | |
294 | static DRIVER_ATTR(new_id, S_IWUSR, NULL, pcmcia_store_new_id); | |
295 | ||
296 | static void | |
297 | pcmcia_free_dynids(struct pcmcia_driver *drv) | |
298 | { | |
299 | struct pcmcia_dynid *dynid, *n; | |
300 | ||
301 | spin_lock(&drv->dynids.lock); | |
302 | list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) { | |
303 | list_del(&dynid->node); | |
304 | kfree(dynid); | |
305 | } | |
306 | spin_unlock(&drv->dynids.lock); | |
307 | } | |
308 | ||
309 | static int | |
310 | pcmcia_create_newid_file(struct pcmcia_driver *drv) | |
311 | { | |
312 | int error = 0; | |
313 | if (drv->probe != NULL) | |
2344c6de | 314 | error = driver_create_file(&drv->drv, &driver_attr_new_id); |
6179b556 BW |
315 | return error; |
316 | } | |
317 | ||
318 | ||
1da177e4 LT |
319 | /** |
320 | * pcmcia_register_driver - register a PCMCIA driver with the bus core | |
78187865 | 321 | * @driver: the &driver being registered |
1da177e4 LT |
322 | * |
323 | * Registers a PCMCIA driver with the PCMCIA bus core. | |
324 | */ | |
1da177e4 LT |
325 | int pcmcia_register_driver(struct pcmcia_driver *driver) |
326 | { | |
6179b556 BW |
327 | int error; |
328 | ||
1da177e4 LT |
329 | if (!driver) |
330 | return -EINVAL; | |
331 | ||
23a83bfe DB |
332 | pcmcia_check_driver(driver); |
333 | ||
1da177e4 LT |
334 | /* initialize common fields */ |
335 | driver->drv.bus = &pcmcia_bus_type; | |
336 | driver->drv.owner = driver->owner; | |
6179b556 BW |
337 | spin_lock_init(&driver->dynids.lock); |
338 | INIT_LIST_HEAD(&driver->dynids.list); | |
1da177e4 | 339 | |
d9d9ea01 DB |
340 | ds_dbg(3, "registering driver %s\n", driver->drv.name); |
341 | ||
6179b556 BW |
342 | error = driver_register(&driver->drv); |
343 | if (error < 0) | |
344 | return error; | |
345 | ||
346 | error = pcmcia_create_newid_file(driver); | |
347 | if (error) | |
348 | driver_unregister(&driver->drv); | |
349 | ||
350 | return error; | |
1da177e4 LT |
351 | } |
352 | EXPORT_SYMBOL(pcmcia_register_driver); | |
353 | ||
354 | /** | |
355 | * pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core | |
78187865 | 356 | * @driver: the &driver being unregistered |
1da177e4 LT |
357 | */ |
358 | void pcmcia_unregister_driver(struct pcmcia_driver *driver) | |
359 | { | |
d9d9ea01 | 360 | ds_dbg(3, "unregistering driver %s\n", driver->drv.name); |
1da177e4 | 361 | driver_unregister(&driver->drv); |
6179b556 | 362 | pcmcia_free_dynids(driver); |
1da177e4 LT |
363 | } |
364 | EXPORT_SYMBOL(pcmcia_unregister_driver); | |
365 | ||
1da177e4 LT |
366 | |
367 | /* pcmcia_device handling */ | |
368 | ||
e7a480d2 | 369 | struct pcmcia_device * pcmcia_get_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
370 | { |
371 | struct device *tmp_dev; | |
372 | tmp_dev = get_device(&p_dev->dev); | |
373 | if (!tmp_dev) | |
374 | return NULL; | |
375 | return to_pcmcia_dev(tmp_dev); | |
376 | } | |
377 | ||
e7a480d2 | 378 | void pcmcia_put_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
379 | { |
380 | if (p_dev) | |
381 | put_device(&p_dev->dev); | |
382 | } | |
383 | ||
360b65b9 DB |
384 | static void pcmcia_release_function(struct kref *ref) |
385 | { | |
386 | struct config_t *c = container_of(ref, struct config_t, ref); | |
d9d9ea01 | 387 | ds_dbg(1, "releasing config_t\n"); |
360b65b9 DB |
388 | kfree(c); |
389 | } | |
390 | ||
1da177e4 LT |
391 | static void pcmcia_release_dev(struct device *dev) |
392 | { | |
393 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
d9d9ea01 | 394 | ds_dbg(1, "releasing device %s\n", p_dev->dev.bus_id); |
dc109497 | 395 | pcmcia_put_socket(p_dev->socket); |
bd65a685 | 396 | kfree(p_dev->devname); |
360b65b9 | 397 | kref_put(&p_dev->function_config->ref, pcmcia_release_function); |
1da177e4 LT |
398 | kfree(p_dev); |
399 | } | |
400 | ||
1d2c9042 | 401 | static void pcmcia_add_device_later(struct pcmcia_socket *s, int mfc) |
82d56e6d DB |
402 | { |
403 | if (!s->pcmcia_state.device_add_pending) { | |
d9d9ea01 DB |
404 | ds_dbg(1, "scheduling to add %s secondary" |
405 | " device to %d\n", mfc ? "mfc" : "pfc", s->sock); | |
82d56e6d | 406 | s->pcmcia_state.device_add_pending = 1; |
1d2c9042 | 407 | s->pcmcia_state.mfc_pfc = mfc; |
82d56e6d DB |
408 | schedule_work(&s->device_add); |
409 | } | |
410 | return; | |
411 | } | |
1da177e4 LT |
412 | |
413 | static int pcmcia_device_probe(struct device * dev) | |
414 | { | |
415 | struct pcmcia_device *p_dev; | |
416 | struct pcmcia_driver *p_drv; | |
82d56e6d | 417 | struct pcmcia_device_id *did; |
f8cfa618 | 418 | struct pcmcia_socket *s; |
af2b3b50 | 419 | cistpl_config_t cis_config; |
1da177e4 LT |
420 | int ret = 0; |
421 | ||
422 | dev = get_device(dev); | |
423 | if (!dev) | |
424 | return -ENODEV; | |
425 | ||
426 | p_dev = to_pcmcia_dev(dev); | |
427 | p_drv = to_pcmcia_drv(dev->driver); | |
f8cfa618 | 428 | s = p_dev->socket; |
1da177e4 | 429 | |
cec5eb7b AC |
430 | /* The PCMCIA code passes the match data in via dev->driver_data |
431 | * which is an ugly hack. Once the driver probe is called it may | |
432 | * and often will overwrite the match data so we must save it first | |
433 | * | |
434 | * handle pseudo multifunction devices: | |
435 | * there are at most two pseudo multifunction devices. | |
436 | * if we're matching against the first, schedule a | |
437 | * call which will then check whether there are two | |
438 | * pseudo devices, and if not, add the second one. | |
439 | */ | |
440 | did = p_dev->dev.driver_data; | |
441 | ||
d9d9ea01 DB |
442 | ds_dbg(1, "trying to bind %s to %s\n", p_dev->dev.bus_id, |
443 | p_drv->drv.name); | |
444 | ||
360b65b9 DB |
445 | if ((!p_drv->probe) || (!p_dev->function_config) || |
446 | (!try_module_get(p_drv->owner))) { | |
1da177e4 LT |
447 | ret = -EINVAL; |
448 | goto put_dev; | |
449 | } | |
450 | ||
af2b3b50 DB |
451 | /* set up some more device information */ |
452 | ret = pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_CONFIG, | |
453 | &cis_config); | |
454 | if (!ret) { | |
455 | p_dev->conf.ConfigBase = cis_config.base; | |
456 | p_dev->conf.Present = cis_config.rmask[0]; | |
457 | } else { | |
458 | printk(KERN_INFO "pcmcia: could not parse base and rmask0 of CIS\n"); | |
459 | p_dev->conf.ConfigBase = 0; | |
460 | p_dev->conf.Present = 0; | |
461 | } | |
462 | ||
f8cfa618 | 463 | ret = p_drv->probe(p_dev); |
d9d9ea01 DB |
464 | if (ret) { |
465 | ds_dbg(1, "binding %s to %s failed with %d\n", | |
466 | p_dev->dev.bus_id, p_drv->drv.name, ret); | |
82d56e6d | 467 | goto put_module; |
d9d9ea01 | 468 | } |
82d56e6d | 469 | |
4ceadbf5 | 470 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
82d56e6d | 471 | (p_dev->socket->device_count == 1) && (p_dev->device_no == 0)) |
1d2c9042 | 472 | pcmcia_add_device_later(p_dev->socket, 0); |
f8cfa618 | 473 | |
cec5eb7b | 474 | put_module: |
1da177e4 LT |
475 | if (ret) |
476 | module_put(p_drv->owner); | |
cec5eb7b | 477 | put_dev: |
f8cfa618 | 478 | if (ret) |
1da177e4 LT |
479 | put_device(dev); |
480 | return (ret); | |
481 | } | |
482 | ||
483 | ||
d6ff5a85 DB |
484 | /* |
485 | * Removes a PCMCIA card from the device tree and socket list. | |
486 | */ | |
487 | static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *leftover) | |
488 | { | |
489 | struct pcmcia_device *p_dev; | |
490 | struct pcmcia_device *tmp; | |
491 | unsigned long flags; | |
492 | ||
d9d9ea01 DB |
493 | ds_dbg(2, "pcmcia_card_remove(%d) %s\n", s->sock, |
494 | leftover ? leftover->devname : ""); | |
d6ff5a85 DB |
495 | |
496 | if (!leftover) | |
497 | s->device_count = 0; | |
498 | else | |
499 | s->device_count = 1; | |
500 | ||
501 | /* unregister all pcmcia_devices registered with this socket, except leftover */ | |
502 | list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) { | |
503 | if (p_dev == leftover) | |
504 | continue; | |
505 | ||
506 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
507 | list_del(&p_dev->socket_device_list); | |
508 | p_dev->_removed=1; | |
509 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
510 | ||
d9d9ea01 | 511 | ds_dbg(2, "unregistering device %s\n", p_dev->dev.bus_id); |
d6ff5a85 DB |
512 | device_unregister(&p_dev->dev); |
513 | } | |
514 | ||
515 | return; | |
516 | } | |
517 | ||
1da177e4 LT |
518 | static int pcmcia_device_remove(struct device * dev) |
519 | { | |
520 | struct pcmcia_device *p_dev; | |
521 | struct pcmcia_driver *p_drv; | |
d6ff5a85 | 522 | struct pcmcia_device_id *did; |
cc3b4866 | 523 | int i; |
1da177e4 | 524 | |
1da177e4 LT |
525 | p_dev = to_pcmcia_dev(dev); |
526 | p_drv = to_pcmcia_drv(dev->driver); | |
d6ff5a85 | 527 | |
d9d9ea01 DB |
528 | ds_dbg(1, "removing device %s\n", p_dev->dev.bus_id); |
529 | ||
d6ff5a85 DB |
530 | /* If we're removing the primary module driving a |
531 | * pseudo multi-function card, we need to unbind | |
532 | * all devices | |
533 | */ | |
80a55e92 | 534 | did = p_dev->dev.driver_data; |
b2f51a1c | 535 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
d6ff5a85 DB |
536 | (p_dev->socket->device_count != 0) && |
537 | (p_dev->device_no == 0)) | |
538 | pcmcia_card_remove(p_dev->socket, p_dev); | |
539 | ||
540 | /* detach the "instance" */ | |
f3990715 DB |
541 | if (!p_drv) |
542 | return 0; | |
1da177e4 | 543 | |
f3990715 | 544 | if (p_drv->remove) |
cc3b4866 DB |
545 | p_drv->remove(p_dev); |
546 | ||
a0aab143 DB |
547 | p_dev->dev_node = NULL; |
548 | ||
f3990715 | 549 | /* check for proper unloading */ |
e2d40963 | 550 | if (p_dev->_irq || p_dev->_io || p_dev->_locked) |
f3990715 DB |
551 | printk(KERN_INFO "pcmcia: driver %s did not release config properly\n", |
552 | p_drv->drv.name); | |
cc3b4866 | 553 | |
f3990715 | 554 | for (i = 0; i < MAX_WIN; i++) |
e2d40963 | 555 | if (p_dev->_win & CLIENT_WIN_REQ(i)) |
f3990715 DB |
556 | printk(KERN_INFO "pcmcia: driver %s did not release windows properly\n", |
557 | p_drv->drv.name); | |
cc3b4866 | 558 | |
f3990715 DB |
559 | /* references from pcmcia_probe_device */ |
560 | pcmcia_put_dev(p_dev); | |
561 | module_put(p_drv->owner); | |
1da177e4 LT |
562 | |
563 | return 0; | |
564 | } | |
565 | ||
566 | ||
1da177e4 LT |
567 | /* |
568 | * pcmcia_device_query -- determine information about a pcmcia device | |
569 | */ | |
570 | static int pcmcia_device_query(struct pcmcia_device *p_dev) | |
571 | { | |
572 | cistpl_manfid_t manf_id; | |
573 | cistpl_funcid_t func_id; | |
76fa82fb | 574 | cistpl_vers_1_t *vers1; |
1da177e4 LT |
575 | unsigned int i; |
576 | ||
76fa82fb IM |
577 | vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL); |
578 | if (!vers1) | |
579 | return -ENOMEM; | |
580 | ||
1da177e4 LT |
581 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
582 | CISTPL_MANFID, &manf_id)) { | |
583 | p_dev->manf_id = manf_id.manf; | |
584 | p_dev->card_id = manf_id.card; | |
585 | p_dev->has_manf_id = 1; | |
586 | p_dev->has_card_id = 1; | |
587 | } | |
588 | ||
589 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, | |
590 | CISTPL_FUNCID, &func_id)) { | |
591 | p_dev->func_id = func_id.func; | |
592 | p_dev->has_func_id = 1; | |
593 | } else { | |
594 | /* rule of thumb: cards with no FUNCID, but with | |
595 | * common memory device geometry information, are | |
596 | * probably memory cards (from pcmcia-cs) */ | |
76fa82fb IM |
597 | cistpl_device_geo_t *devgeo; |
598 | ||
599 | devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL); | |
600 | if (!devgeo) { | |
601 | kfree(vers1); | |
602 | return -ENOMEM; | |
603 | } | |
1da177e4 | 604 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
76fa82fb | 605 | CISTPL_DEVICE_GEO, devgeo)) { |
1da177e4 LT |
606 | ds_dbg(0, "mem device geometry probably means " |
607 | "FUNCID_MEMORY\n"); | |
608 | p_dev->func_id = CISTPL_FUNCID_MEMORY; | |
609 | p_dev->has_func_id = 1; | |
610 | } | |
76fa82fb | 611 | kfree(devgeo); |
1da177e4 LT |
612 | } |
613 | ||
614 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_VERS_1, | |
76fa82fb IM |
615 | vers1)) { |
616 | for (i=0; i < vers1->ns; i++) { | |
1da177e4 LT |
617 | char *tmp; |
618 | unsigned int length; | |
619 | ||
76fa82fb | 620 | tmp = vers1->str + vers1->ofs[i]; |
1da177e4 LT |
621 | |
622 | length = strlen(tmp) + 1; | |
6e3d4f25 | 623 | if ((length < 2) || (length > 255)) |
1da177e4 LT |
624 | continue; |
625 | ||
626 | p_dev->prod_id[i] = kmalloc(sizeof(char) * length, | |
627 | GFP_KERNEL); | |
628 | if (!p_dev->prod_id[i]) | |
629 | continue; | |
630 | ||
631 | p_dev->prod_id[i] = strncpy(p_dev->prod_id[i], | |
632 | tmp, length); | |
633 | } | |
634 | } | |
635 | ||
76fa82fb | 636 | kfree(vers1); |
1da177e4 LT |
637 | return 0; |
638 | } | |
639 | ||
640 | ||
641 | /* device_add_lock is needed to avoid double registration by cardmgr and kernel. | |
642 | * Serializes pcmcia_device_add; will most likely be removed in future. | |
643 | * | |
644 | * While it has the caveat that adding new PCMCIA devices inside(!) device_register() | |
645 | * won't work, this doesn't matter much at the moment: the driver core doesn't | |
646 | * support it either. | |
647 | */ | |
7fe908dd | 648 | static DEFINE_MUTEX(device_add_lock); |
1da177e4 | 649 | |
dc109497 | 650 | struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function) |
1da177e4 | 651 | { |
360b65b9 | 652 | struct pcmcia_device *p_dev, *tmp_dev; |
1da177e4 | 653 | unsigned long flags; |
bd65a685 | 654 | int bus_id_len; |
1da177e4 | 655 | |
dc109497 | 656 | s = pcmcia_get_socket(s); |
1da177e4 LT |
657 | if (!s) |
658 | return NULL; | |
659 | ||
7fe908dd | 660 | mutex_lock(&device_add_lock); |
1da177e4 | 661 | |
d9d9ea01 DB |
662 | ds_dbg(3, "adding device to %d, function %d\n", s->sock, function); |
663 | ||
6cf5be51 DB |
664 | /* max of 4 devices per card */ |
665 | if (s->device_count == 4) | |
1ad275e3 DB |
666 | goto err_put; |
667 | ||
8084b372 | 668 | p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL); |
1da177e4 LT |
669 | if (!p_dev) |
670 | goto err_put; | |
1da177e4 | 671 | |
dc109497 | 672 | p_dev->socket = s; |
1da177e4 LT |
673 | p_dev->device_no = (s->device_count++); |
674 | p_dev->func = function; | |
675 | ||
676 | p_dev->dev.bus = &pcmcia_bus_type; | |
87373318 | 677 | p_dev->dev.parent = s->dev.parent; |
1da177e4 | 678 | p_dev->dev.release = pcmcia_release_dev; |
43d9f7fd JB |
679 | /* by default don't allow DMA */ |
680 | p_dev->dma_mask = DMA_MASK_NONE; | |
681 | p_dev->dev.dma_mask = &p_dev->dma_mask; | |
bd65a685 BG |
682 | bus_id_len = sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no); |
683 | ||
684 | p_dev->devname = kmalloc(6 + bus_id_len + 1, GFP_KERNEL); | |
685 | if (!p_dev->devname) | |
686 | goto err_free; | |
687 | sprintf (p_dev->devname, "pcmcia%s", p_dev->dev.bus_id); | |
d9d9ea01 | 688 | ds_dbg(3, "devname is %s\n", p_dev->devname); |
1da177e4 | 689 | |
1da177e4 | 690 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
360b65b9 DB |
691 | |
692 | /* | |
693 | * p_dev->function_config must be the same for all card functions. | |
694 | * Note that this is serialized by the device_add_lock, so that | |
695 | * only one such struct will be created. | |
696 | */ | |
697 | list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list) | |
698 | if (p_dev->func == tmp_dev->func) { | |
699 | p_dev->function_config = tmp_dev->function_config; | |
700 | kref_get(&p_dev->function_config->ref); | |
701 | } | |
702 | ||
703 | /* Add to the list in pcmcia_bus_socket */ | |
6171b88b | 704 | list_add(&p_dev->socket_device_list, &s->devices_list); |
360b65b9 | 705 | |
1da177e4 LT |
706 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
707 | ||
360b65b9 | 708 | if (!p_dev->function_config) { |
d9d9ea01 | 709 | ds_dbg(3, "creating config_t for %s\n", p_dev->dev.bus_id); |
360b65b9 DB |
710 | p_dev->function_config = kzalloc(sizeof(struct config_t), |
711 | GFP_KERNEL); | |
712 | if (!p_dev->function_config) | |
713 | goto err_unreg; | |
714 | kref_init(&p_dev->function_config->ref); | |
715 | } | |
716 | ||
807277cb DB |
717 | printk(KERN_NOTICE "pcmcia: registering new device %s\n", |
718 | p_dev->devname); | |
719 | ||
1ad275e3 DB |
720 | pcmcia_device_query(p_dev); |
721 | ||
360b65b9 DB |
722 | if (device_register(&p_dev->dev)) |
723 | goto err_unreg; | |
1da177e4 | 724 | |
7fe908dd | 725 | mutex_unlock(&device_add_lock); |
1da177e4 LT |
726 | |
727 | return p_dev; | |
728 | ||
360b65b9 DB |
729 | err_unreg: |
730 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
731 | list_del(&p_dev->socket_device_list); | |
732 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
733 | ||
1da177e4 | 734 | err_free: |
bd65a685 | 735 | kfree(p_dev->devname); |
1da177e4 LT |
736 | kfree(p_dev); |
737 | s->device_count--; | |
738 | err_put: | |
7fe908dd | 739 | mutex_unlock(&device_add_lock); |
dc109497 | 740 | pcmcia_put_socket(s); |
1da177e4 LT |
741 | |
742 | return NULL; | |
743 | } | |
744 | ||
745 | ||
746 | static int pcmcia_card_add(struct pcmcia_socket *s) | |
747 | { | |
1da177e4 | 748 | cistpl_longlink_mfc_t mfc; |
c5081d5f | 749 | unsigned int no_funcs, i, no_chains; |
1da177e4 LT |
750 | int ret = 0; |
751 | ||
d9d9ea01 DB |
752 | if (!(s->resource_setup_done)) { |
753 | ds_dbg(3, "no resources available, delaying card_add\n"); | |
1da177e4 | 754 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 755 | } |
1da177e4 | 756 | |
d9d9ea01 DB |
757 | if (pcmcia_validate_mem(s)) { |
758 | ds_dbg(3, "validating mem resources failed, " | |
759 | "delaying card_add\n"); | |
de75914e | 760 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 761 | } |
de75914e | 762 | |
c5081d5f DB |
763 | ret = pccard_validate_cis(s, BIND_FN_ALL, &no_chains); |
764 | if (ret || !no_chains) { | |
1da177e4 LT |
765 | ds_dbg(0, "invalid CIS or invalid resources\n"); |
766 | return -ENODEV; | |
767 | } | |
768 | ||
769 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
770 | no_funcs = mfc.nfn; | |
771 | else | |
772 | no_funcs = 1; | |
1d2c9042 | 773 | s->functions = no_funcs; |
1da177e4 | 774 | |
1da177e4 | 775 | for (i=0; i < no_funcs; i++) |
dc109497 | 776 | pcmcia_device_add(s, i); |
1da177e4 LT |
777 | |
778 | return (ret); | |
779 | } | |
780 | ||
781 | ||
4796b71f | 782 | static void pcmcia_delayed_add_device(struct work_struct *work) |
1ad275e3 | 783 | { |
c4028958 DH |
784 | struct pcmcia_socket *s = |
785 | container_of(work, struct pcmcia_socket, device_add); | |
d9d9ea01 | 786 | ds_dbg(1, "adding additional device to %d\n", s->sock); |
1d2c9042 | 787 | pcmcia_device_add(s, s->pcmcia_state.mfc_pfc); |
b5e43913 | 788 | s->pcmcia_state.device_add_pending = 0; |
1d2c9042 | 789 | s->pcmcia_state.mfc_pfc = 0; |
1ad275e3 DB |
790 | } |
791 | ||
e2f0b534 | 792 | static int pcmcia_requery(struct device *dev, void * _data) |
ff1fa9ef | 793 | { |
e2f0b534 | 794 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
d9d9ea01 DB |
795 | if (!p_dev->dev.driver) { |
796 | ds_dbg(1, "update device information for %s\n", | |
797 | p_dev->dev.bus_id); | |
e2f0b534 | 798 | pcmcia_device_query(p_dev); |
d9d9ea01 | 799 | } |
e2f0b534 DB |
800 | |
801 | return 0; | |
802 | } | |
803 | ||
4ae1cbf1 | 804 | static void pcmcia_bus_rescan(struct pcmcia_socket *skt, int new_cis) |
e2f0b534 | 805 | { |
4ae1cbf1 | 806 | int no_devices = 0; |
f901b8c4 | 807 | int ret = 0; |
e2f0b534 DB |
808 | unsigned long flags; |
809 | ||
7fe908dd | 810 | /* must be called with skt_mutex held */ |
d9d9ea01 DB |
811 | ds_dbg(0, "re-scanning socket %d\n", skt->sock); |
812 | ||
e2f0b534 | 813 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
dc109497 | 814 | if (list_empty(&skt->devices_list)) |
4ae1cbf1 | 815 | no_devices = 1; |
e2f0b534 DB |
816 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
817 | ||
4ae1cbf1 DB |
818 | /* If this is because of a CIS override, start over */ |
819 | if (new_cis && !no_devices) | |
820 | pcmcia_card_remove(skt, NULL); | |
821 | ||
e2f0b534 DB |
822 | /* if no devices were added for this socket yet because of |
823 | * missing resource information or other trouble, we need to | |
824 | * do this now. */ | |
4ae1cbf1 | 825 | if (no_devices || new_cis) { |
f901b8c4 | 826 | ret = pcmcia_card_add(skt); |
e2f0b534 DB |
827 | if (ret) |
828 | return; | |
829 | } | |
830 | ||
831 | /* some device information might have changed because of a CIS | |
832 | * update or because we can finally read it correctly... so | |
833 | * determine it again, overwriting old values if necessary. */ | |
834 | bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery); | |
835 | ||
836 | /* we re-scan all devices, not just the ones connected to this | |
837 | * socket. This does not matter, though. */ | |
f901b8c4 DB |
838 | ret = bus_rescan_devices(&pcmcia_bus_type); |
839 | if (ret) | |
840 | printk(KERN_INFO "pcmcia: bus_rescan_devices failed\n"); | |
ff1fa9ef | 841 | } |
1ad275e3 | 842 | |
1d2c9042 DB |
843 | #ifdef CONFIG_PCMCIA_LOAD_CIS |
844 | ||
845 | /** | |
846 | * pcmcia_load_firmware - load CIS from userspace if device-provided is broken | |
78187865 RD |
847 | * @dev: the pcmcia device which needs a CIS override |
848 | * @filename: requested filename in /lib/firmware/ | |
1d2c9042 DB |
849 | * |
850 | * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if | |
851 | * the one provided by the card is broken. The firmware files reside in | |
852 | * /lib/firmware/ in userspace. | |
853 | */ | |
854 | static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
855 | { | |
856 | struct pcmcia_socket *s = dev->socket; | |
857 | const struct firmware *fw; | |
feda4f2c | 858 | char path[FIRMWARE_NAME_MAX]; |
1d2c9042 DB |
859 | int ret = -ENOMEM; |
860 | int no_funcs; | |
861 | int old_funcs; | |
862 | cisdump_t *cis; | |
863 | cistpl_longlink_mfc_t mfc; | |
864 | ||
865 | if (!filename) | |
866 | return -EINVAL; | |
867 | ||
d9d9ea01 | 868 | ds_dbg(1, "trying to load CIS file %s\n", filename); |
1d2c9042 | 869 | |
feda4f2c | 870 | if (strlen(filename) > (FIRMWARE_NAME_MAX - 1)) { |
52debb06 RD |
871 | printk(KERN_WARNING "pcmcia: CIS filename is too long [%s]\n", |
872 | filename); | |
1d2c9042 | 873 | return -EINVAL; |
d9d9ea01 | 874 | } |
1d2c9042 | 875 | |
52debb06 | 876 | snprintf(path, sizeof(path), "%s", filename); |
1d2c9042 DB |
877 | |
878 | if (request_firmware(&fw, path, &dev->dev) == 0) { | |
d9d9ea01 DB |
879 | if (fw->size >= CISTPL_MAX_CIS_SIZE) { |
880 | ret = -EINVAL; | |
881 | printk(KERN_ERR "pcmcia: CIS override is too big\n"); | |
1d2c9042 | 882 | goto release; |
d9d9ea01 | 883 | } |
1d2c9042 DB |
884 | |
885 | cis = kzalloc(sizeof(cisdump_t), GFP_KERNEL); | |
d9d9ea01 DB |
886 | if (!cis) { |
887 | ret = -ENOMEM; | |
1d2c9042 | 888 | goto release; |
d9d9ea01 | 889 | } |
1d2c9042 DB |
890 | |
891 | cis->Length = fw->size + 1; | |
892 | memcpy(cis->Data, fw->data, fw->size); | |
893 | ||
894 | if (!pcmcia_replace_cis(s, cis)) | |
895 | ret = 0; | |
d9d9ea01 DB |
896 | else { |
897 | printk(KERN_ERR "pcmcia: CIS override failed\n"); | |
898 | goto release; | |
899 | } | |
900 | ||
1d2c9042 DB |
901 | |
902 | /* update information */ | |
903 | pcmcia_device_query(dev); | |
904 | ||
905 | /* does this cis override add or remove functions? */ | |
906 | old_funcs = s->functions; | |
907 | ||
908 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
909 | no_funcs = mfc.nfn; | |
910 | else | |
911 | no_funcs = 1; | |
912 | s->functions = no_funcs; | |
913 | ||
914 | if (old_funcs > no_funcs) | |
915 | pcmcia_card_remove(s, dev); | |
916 | else if (no_funcs > old_funcs) | |
917 | pcmcia_add_device_later(s, 1); | |
918 | } | |
919 | release: | |
920 | release_firmware(fw); | |
921 | ||
922 | return (ret); | |
923 | } | |
924 | ||
925 | #else /* !CONFIG_PCMCIA_LOAD_CIS */ | |
926 | ||
927 | static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
928 | { | |
929 | return -ENODEV; | |
930 | } | |
931 | ||
932 | #endif | |
933 | ||
934 | ||
1ad275e3 DB |
935 | static inline int pcmcia_devmatch(struct pcmcia_device *dev, |
936 | struct pcmcia_device_id *did) | |
937 | { | |
938 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) { | |
939 | if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id)) | |
940 | return 0; | |
941 | } | |
942 | ||
943 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) { | |
944 | if ((!dev->has_card_id) || (dev->card_id != did->card_id)) | |
945 | return 0; | |
946 | } | |
947 | ||
948 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) { | |
949 | if (dev->func != did->function) | |
950 | return 0; | |
951 | } | |
952 | ||
953 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) { | |
954 | if (!dev->prod_id[0]) | |
955 | return 0; | |
956 | if (strcmp(did->prod_id[0], dev->prod_id[0])) | |
957 | return 0; | |
958 | } | |
959 | ||
960 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) { | |
961 | if (!dev->prod_id[1]) | |
962 | return 0; | |
963 | if (strcmp(did->prod_id[1], dev->prod_id[1])) | |
964 | return 0; | |
965 | } | |
966 | ||
967 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) { | |
968 | if (!dev->prod_id[2]) | |
969 | return 0; | |
970 | if (strcmp(did->prod_id[2], dev->prod_id[2])) | |
971 | return 0; | |
972 | } | |
973 | ||
974 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) { | |
975 | if (!dev->prod_id[3]) | |
976 | return 0; | |
977 | if (strcmp(did->prod_id[3], dev->prod_id[3])) | |
978 | return 0; | |
979 | } | |
980 | ||
981 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { | |
1ad275e3 DB |
982 | if (dev->device_no != did->device_no) |
983 | return 0; | |
984 | } | |
985 | ||
986 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { | |
987 | if ((!dev->has_func_id) || (dev->func_id != did->func_id)) | |
988 | return 0; | |
989 | ||
990 | /* if this is a pseudo-multi-function device, | |
991 | * we need explicit matches */ | |
992 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) | |
993 | return 0; | |
994 | if (dev->device_no) | |
995 | return 0; | |
996 | ||
997 | /* also, FUNC_ID matching needs to be activated by userspace | |
998 | * after it has re-checked that there is no possible module | |
999 | * with a prod_id/manf_id/card_id match. | |
1000 | */ | |
d9d9ea01 DB |
1001 | ds_dbg(0, "skipping FUNC_ID match for %s until userspace " |
1002 | "interaction\n", dev->dev.bus_id); | |
1ad275e3 DB |
1003 | if (!dev->allow_func_id_match) |
1004 | return 0; | |
1005 | } | |
1006 | ||
ea7b3882 | 1007 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { |
d9d9ea01 | 1008 | ds_dbg(0, "device %s needs a fake CIS\n", dev->dev.bus_id); |
daa9517d DB |
1009 | if (!dev->socket->fake_cis) |
1010 | pcmcia_load_firmware(dev, did->cisfile); | |
1011 | ||
1012 | if (!dev->socket->fake_cis) | |
ea7b3882 | 1013 | return 0; |
ea7b3882 DB |
1014 | } |
1015 | ||
f602ff7e DB |
1016 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { |
1017 | int i; | |
1018 | for (i=0; i<4; i++) | |
1019 | if (dev->prod_id[i]) | |
1020 | return 0; | |
1021 | if (dev->has_manf_id || dev->has_card_id || dev->has_func_id) | |
1022 | return 0; | |
1023 | } | |
1024 | ||
1ad275e3 DB |
1025 | dev->dev.driver_data = (void *) did; |
1026 | ||
1027 | return 1; | |
1028 | } | |
1029 | ||
1030 | ||
1da177e4 LT |
1031 | static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) { |
1032 | struct pcmcia_device * p_dev = to_pcmcia_dev(dev); | |
1033 | struct pcmcia_driver * p_drv = to_pcmcia_drv(drv); | |
1ad275e3 | 1034 | struct pcmcia_device_id *did = p_drv->id_table; |
6179b556 BW |
1035 | struct pcmcia_dynid *dynid; |
1036 | ||
1037 | /* match dynamic devices first */ | |
1038 | spin_lock(&p_drv->dynids.lock); | |
1039 | list_for_each_entry(dynid, &p_drv->dynids.list, node) { | |
1040 | ds_dbg(3, "trying to match %s to %s\n", dev->bus_id, | |
1041 | drv->name); | |
1042 | if (pcmcia_devmatch(p_dev, &dynid->id)) { | |
1043 | ds_dbg(0, "matched %s to %s\n", dev->bus_id, | |
1044 | drv->name); | |
1045 | spin_unlock(&p_drv->dynids.lock); | |
1046 | return 1; | |
1047 | } | |
1048 | } | |
1049 | spin_unlock(&p_drv->dynids.lock); | |
1da177e4 | 1050 | |
0e0fad8f | 1051 | #ifdef CONFIG_PCMCIA_IOCTL |
1da177e4 | 1052 | /* matching by cardmgr */ |
d9d9ea01 DB |
1053 | if (p_dev->cardmgr == p_drv) { |
1054 | ds_dbg(0, "cardmgr matched %s to %s\n", dev->bus_id, | |
1055 | drv->name); | |
1da177e4 | 1056 | return 1; |
d9d9ea01 | 1057 | } |
0e0fad8f | 1058 | #endif |
1da177e4 | 1059 | |
1ad275e3 | 1060 | while (did && did->match_flags) { |
d9d9ea01 DB |
1061 | ds_dbg(3, "trying to match %s to %s\n", dev->bus_id, |
1062 | drv->name); | |
1063 | if (pcmcia_devmatch(p_dev, did)) { | |
1064 | ds_dbg(0, "matched %s to %s\n", dev->bus_id, | |
1065 | drv->name); | |
1ad275e3 | 1066 | return 1; |
d9d9ea01 | 1067 | } |
1ad275e3 DB |
1068 | did++; |
1069 | } | |
1070 | ||
1da177e4 LT |
1071 | return 0; |
1072 | } | |
1073 | ||
840c2ac5 DB |
1074 | #ifdef CONFIG_HOTPLUG |
1075 | ||
7eff2e7a | 1076 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
1077 | { |
1078 | struct pcmcia_device *p_dev; | |
7eff2e7a | 1079 | int i; |
840c2ac5 DB |
1080 | u32 hash[4] = { 0, 0, 0, 0}; |
1081 | ||
1082 | if (!dev) | |
1083 | return -ENODEV; | |
1084 | ||
1085 | p_dev = to_pcmcia_dev(dev); | |
1086 | ||
1087 | /* calculate hashes */ | |
1088 | for (i=0; i<4; i++) { | |
1089 | if (!p_dev->prod_id[i]) | |
1090 | continue; | |
1091 | hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); | |
1092 | } | |
1093 | ||
7eff2e7a | 1094 | if (add_uevent_var(env, "SOCKET_NO=%u", p_dev->socket->sock)) |
840c2ac5 DB |
1095 | return -ENOMEM; |
1096 | ||
7eff2e7a | 1097 | if (add_uevent_var(env, "DEVICE_NO=%02X", p_dev->device_no)) |
840c2ac5 DB |
1098 | return -ENOMEM; |
1099 | ||
7eff2e7a | 1100 | if (add_uevent_var(env, "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" |
312c004d KS |
1101 | "pa%08Xpb%08Xpc%08Xpd%08X", |
1102 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1103 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1104 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1105 | p_dev->func, | |
1106 | p_dev->device_no, | |
1107 | hash[0], | |
1108 | hash[1], | |
1109 | hash[2], | |
1110 | hash[3])) | |
840c2ac5 DB |
1111 | return -ENOMEM; |
1112 | ||
840c2ac5 DB |
1113 | return 0; |
1114 | } | |
1115 | ||
1116 | #else | |
1117 | ||
7eff2e7a | 1118 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
1119 | { |
1120 | return -ENODEV; | |
1121 | } | |
1122 | ||
1123 | #endif | |
1124 | ||
3f8df781 AS |
1125 | /************************ runtime PM support ***************************/ |
1126 | ||
1127 | static int pcmcia_dev_suspend(struct device *dev, pm_message_t state); | |
1128 | static int pcmcia_dev_resume(struct device *dev); | |
1129 | ||
1130 | static int runtime_suspend(struct device *dev) | |
1131 | { | |
1132 | int rc; | |
1133 | ||
1134 | down(&dev->sem); | |
1135 | rc = pcmcia_dev_suspend(dev, PMSG_SUSPEND); | |
1136 | up(&dev->sem); | |
3f8df781 AS |
1137 | return rc; |
1138 | } | |
1139 | ||
1140 | static void runtime_resume(struct device *dev) | |
1141 | { | |
1142 | int rc; | |
1143 | ||
1144 | down(&dev->sem); | |
1145 | rc = pcmcia_dev_resume(dev); | |
1146 | up(&dev->sem); | |
3f8df781 AS |
1147 | } |
1148 | ||
1da177e4 LT |
1149 | /************************ per-device sysfs output ***************************/ |
1150 | ||
1151 | #define pcmcia_device_attr(field, test, format) \ | |
e404e274 | 1152 | static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1153 | { \ |
1154 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
1155 | return p_dev->test ? sprintf (buf, format, p_dev->field) : -ENODEV; \ | |
1156 | } | |
1157 | ||
1158 | #define pcmcia_device_stringattr(name, field) \ | |
e404e274 | 1159 | static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1160 | { \ |
1161 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
1162 | return p_dev->field ? sprintf (buf, "%s\n", p_dev->field) : -ENODEV; \ | |
1163 | } | |
1164 | ||
1165 | pcmcia_device_attr(func, socket, "0x%02x\n"); | |
1166 | pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); | |
1167 | pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); | |
1168 | pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); | |
1169 | pcmcia_device_stringattr(prod_id1, prod_id[0]); | |
1170 | pcmcia_device_stringattr(prod_id2, prod_id[1]); | |
1171 | pcmcia_device_stringattr(prod_id3, prod_id[2]); | |
1172 | pcmcia_device_stringattr(prod_id4, prod_id[3]); | |
1173 | ||
db1019ca DB |
1174 | |
1175 | static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf) | |
1176 | { | |
1177 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1178 | ||
f6fbe01a | 1179 | if (p_dev->suspended) |
db1019ca DB |
1180 | return sprintf(buf, "off\n"); |
1181 | else | |
1182 | return sprintf(buf, "on\n"); | |
1183 | } | |
1184 | ||
1185 | static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr, | |
1186 | const char *buf, size_t count) | |
1187 | { | |
1188 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1189 | int ret = 0; | |
1190 | ||
1191 | if (!count) | |
1192 | return -EINVAL; | |
1193 | ||
f6fbe01a | 1194 | if ((!p_dev->suspended) && !strncmp(buf, "off", 3)) |
3f8df781 | 1195 | ret = runtime_suspend(dev); |
f6fbe01a | 1196 | else if (p_dev->suspended && !strncmp(buf, "on", 2)) |
3f8df781 | 1197 | runtime_resume(dev); |
db1019ca DB |
1198 | |
1199 | return ret ? ret : count; | |
1200 | } | |
1201 | ||
1202 | ||
3704511b | 1203 | static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) |
3248ff43 DB |
1204 | { |
1205 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1206 | int i; | |
1207 | u32 hash[4] = { 0, 0, 0, 0}; | |
1208 | ||
1209 | /* calculate hashes */ | |
1210 | for (i=0; i<4; i++) { | |
1211 | if (!p_dev->prod_id[i]) | |
1212 | continue; | |
1213 | hash[i] = crc32(0,p_dev->prod_id[i],strlen(p_dev->prod_id[i])); | |
1214 | } | |
1215 | return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
1216 | "pa%08Xpb%08Xpc%08Xpd%08X\n", | |
1217 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1218 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1219 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1220 | p_dev->func, p_dev->device_no, | |
1221 | hash[0], hash[1], hash[2], hash[3]); | |
1222 | } | |
a5b55778 | 1223 | |
3248ff43 DB |
1224 | static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, |
1225 | struct device_attribute *attr, const char *buf, size_t count) | |
a5b55778 DB |
1226 | { |
1227 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
f901b8c4 | 1228 | int ret; |
db1019ca DB |
1229 | |
1230 | if (!count) | |
1231 | return -EINVAL; | |
a5b55778 | 1232 | |
7fe908dd | 1233 | mutex_lock(&p_dev->socket->skt_mutex); |
a5b55778 | 1234 | p_dev->allow_func_id_match = 1; |
7fe908dd | 1235 | mutex_unlock(&p_dev->socket->skt_mutex); |
a5b55778 | 1236 | |
f901b8c4 DB |
1237 | ret = bus_rescan_devices(&pcmcia_bus_type); |
1238 | if (ret) | |
1239 | printk(KERN_INFO "pcmcia: bus_rescan_devices failed after " | |
1240 | "allowing func_id matches\n"); | |
a5b55778 DB |
1241 | |
1242 | return count; | |
1243 | } | |
1244 | ||
1da177e4 LT |
1245 | static struct device_attribute pcmcia_dev_attrs[] = { |
1246 | __ATTR(function, 0444, func_show, NULL), | |
db1019ca | 1247 | __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state), |
1da177e4 LT |
1248 | __ATTR_RO(func_id), |
1249 | __ATTR_RO(manf_id), | |
1250 | __ATTR_RO(card_id), | |
1251 | __ATTR_RO(prod_id1), | |
1252 | __ATTR_RO(prod_id2), | |
1253 | __ATTR_RO(prod_id3), | |
1254 | __ATTR_RO(prod_id4), | |
3248ff43 | 1255 | __ATTR_RO(modalias), |
a5b55778 | 1256 | __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), |
1da177e4 LT |
1257 | __ATTR_NULL, |
1258 | }; | |
1259 | ||
8e9e793d DB |
1260 | /* PM support, also needed for reset */ |
1261 | ||
1262 | static int pcmcia_dev_suspend(struct device * dev, pm_message_t state) | |
1263 | { | |
1264 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1265 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1266 | int ret = 0; |
8e9e793d | 1267 | |
d6b4fa6d DB |
1268 | if (p_dev->suspended) |
1269 | return 0; | |
1270 | ||
d9d9ea01 DB |
1271 | ds_dbg(2, "suspending %s\n", dev->bus_id); |
1272 | ||
8e9e793d DB |
1273 | if (dev->driver) |
1274 | p_drv = to_pcmcia_drv(dev->driver); | |
1275 | ||
e2d40963 DB |
1276 | if (!p_drv) |
1277 | goto out; | |
1278 | ||
1279 | if (p_drv->suspend) { | |
8661bb5b | 1280 | ret = p_drv->suspend(p_dev); |
d9d9ea01 DB |
1281 | if (ret) { |
1282 | printk(KERN_ERR "pcmcia: device %s (driver %s) did " | |
1283 | "not want to go to sleep (%d)\n", | |
1284 | p_dev->devname, p_drv->drv.name, ret); | |
f6fbe01a | 1285 | goto out; |
d9d9ea01 | 1286 | } |
8661bb5b | 1287 | } |
8e9e793d | 1288 | |
d9d9ea01 DB |
1289 | if (p_dev->device_no == p_dev->func) { |
1290 | ds_dbg(2, "releasing configuration for %s\n", dev->bus_id); | |
e2d40963 | 1291 | pcmcia_release_configuration(p_dev); |
d9d9ea01 | 1292 | } |
e2d40963 | 1293 | |
f6fbe01a DB |
1294 | out: |
1295 | if (!ret) | |
1296 | p_dev->suspended = 1; | |
1297 | return ret; | |
8e9e793d DB |
1298 | } |
1299 | ||
1300 | ||
1301 | static int pcmcia_dev_resume(struct device * dev) | |
1302 | { | |
1303 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1304 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1305 | int ret = 0; |
8e9e793d | 1306 | |
d6b4fa6d DB |
1307 | if (!p_dev->suspended) |
1308 | return 0; | |
1309 | ||
d9d9ea01 DB |
1310 | ds_dbg(2, "resuming %s\n", dev->bus_id); |
1311 | ||
8e9e793d DB |
1312 | if (dev->driver) |
1313 | p_drv = to_pcmcia_drv(dev->driver); | |
1314 | ||
e2d40963 DB |
1315 | if (!p_drv) |
1316 | goto out; | |
1317 | ||
1318 | if (p_dev->device_no == p_dev->func) { | |
d9d9ea01 | 1319 | ds_dbg(2, "requesting configuration for %s\n", dev->bus_id); |
e2d40963 DB |
1320 | ret = pcmcia_request_configuration(p_dev, &p_dev->conf); |
1321 | if (ret) | |
1322 | goto out; | |
8661bb5b | 1323 | } |
8e9e793d | 1324 | |
e2d40963 DB |
1325 | if (p_drv->resume) |
1326 | ret = p_drv->resume(p_dev); | |
1327 | ||
f6fbe01a DB |
1328 | out: |
1329 | if (!ret) | |
1330 | p_dev->suspended = 0; | |
1331 | return ret; | |
8e9e793d DB |
1332 | } |
1333 | ||
1334 | ||
1335 | static int pcmcia_bus_suspend_callback(struct device *dev, void * _data) | |
1336 | { | |
1337 | struct pcmcia_socket *skt = _data; | |
1338 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1339 | ||
3f8df781 | 1340 | if (p_dev->socket != skt || p_dev->suspended) |
8e9e793d DB |
1341 | return 0; |
1342 | ||
3f8df781 | 1343 | return runtime_suspend(dev); |
8e9e793d DB |
1344 | } |
1345 | ||
1346 | static int pcmcia_bus_resume_callback(struct device *dev, void * _data) | |
1347 | { | |
1348 | struct pcmcia_socket *skt = _data; | |
1349 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1350 | ||
3f8df781 | 1351 | if (p_dev->socket != skt || !p_dev->suspended) |
8e9e793d DB |
1352 | return 0; |
1353 | ||
3f8df781 | 1354 | runtime_resume(dev); |
8e9e793d DB |
1355 | |
1356 | return 0; | |
1357 | } | |
1358 | ||
1359 | static int pcmcia_bus_resume(struct pcmcia_socket *skt) | |
1360 | { | |
d9d9ea01 | 1361 | ds_dbg(2, "resuming socket %d\n", skt->sock); |
8e9e793d DB |
1362 | bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback); |
1363 | return 0; | |
1364 | } | |
1365 | ||
1366 | static int pcmcia_bus_suspend(struct pcmcia_socket *skt) | |
1367 | { | |
d9d9ea01 | 1368 | ds_dbg(2, "suspending socket %d\n", skt->sock); |
8e9e793d DB |
1369 | if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt, |
1370 | pcmcia_bus_suspend_callback)) { | |
1371 | pcmcia_bus_resume(skt); | |
1372 | return -EIO; | |
1373 | } | |
1374 | return 0; | |
1375 | } | |
1376 | ||
1da177e4 | 1377 | |
1da177e4 LT |
1378 | /*====================================================================== |
1379 | ||
1380 | The card status event handler. | |
1381 | ||
1382 | ======================================================================*/ | |
1383 | ||
1da177e4 LT |
1384 | /* Normally, the event is passed to individual drivers after |
1385 | * informing userspace. Only for CS_EVENT_CARD_REMOVAL this | |
1386 | * is inversed to maintain historic compatibility. | |
1387 | */ | |
1388 | ||
1389 | static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) | |
1390 | { | |
dc109497 | 1391 | struct pcmcia_socket *s = pcmcia_get_socket(skt); |
1da177e4 | 1392 | |
1617406a FM |
1393 | if (!s) { |
1394 | printk(KERN_ERR "PCMCIA obtaining reference to socket %p " \ | |
1395 | "failed, event 0x%x lost!\n", skt, event); | |
1396 | return -ENODEV; | |
1397 | } | |
1398 | ||
1da177e4 | 1399 | ds_dbg(1, "ds_event(0x%06x, %d, 0x%p)\n", |
dc109497 | 1400 | event, priority, skt); |
1da177e4 | 1401 | |
f8cfa618 | 1402 | switch (event) { |
1da177e4 | 1403 | case CS_EVENT_CARD_REMOVAL: |
b5e43913 | 1404 | s->pcmcia_state.present = 0; |
d6ff5a85 | 1405 | pcmcia_card_remove(skt, NULL); |
dc109497 | 1406 | handle_event(skt, event); |
1da177e4 | 1407 | break; |
f8cfa618 | 1408 | |
1da177e4 | 1409 | case CS_EVENT_CARD_INSERTION: |
b5e43913 | 1410 | s->pcmcia_state.present = 1; |
1da177e4 | 1411 | pcmcia_card_add(skt); |
dc109497 | 1412 | handle_event(skt, event); |
1da177e4 LT |
1413 | break; |
1414 | ||
1415 | case CS_EVENT_EJECTION_REQUEST: | |
1da177e4 LT |
1416 | break; |
1417 | ||
8e9e793d DB |
1418 | case CS_EVENT_PM_SUSPEND: |
1419 | case CS_EVENT_PM_RESUME: | |
1420 | case CS_EVENT_RESET_PHYSICAL: | |
1421 | case CS_EVENT_CARD_RESET: | |
1da177e4 | 1422 | default: |
dc109497 | 1423 | handle_event(skt, event); |
1da177e4 LT |
1424 | break; |
1425 | } | |
1426 | ||
dc109497 DB |
1427 | pcmcia_put_socket(s); |
1428 | ||
1da177e4 LT |
1429 | return 0; |
1430 | } /* ds_event */ | |
1431 | ||
1432 | ||
9940ec36 DB |
1433 | struct pcmcia_device * pcmcia_dev_present(struct pcmcia_device *_p_dev) |
1434 | { | |
1435 | struct pcmcia_device *p_dev; | |
1436 | struct pcmcia_device *ret = NULL; | |
1437 | ||
1438 | p_dev = pcmcia_get_dev(_p_dev); | |
1439 | if (!p_dev) | |
1440 | return NULL; | |
1441 | ||
1442 | if (!p_dev->socket->pcmcia_state.present) | |
1443 | goto out; | |
1444 | ||
1445 | if (p_dev->_removed) | |
1446 | goto out; | |
1447 | ||
1448 | if (p_dev->suspended) | |
1449 | goto out; | |
1450 | ||
1451 | ret = p_dev; | |
1452 | out: | |
1453 | pcmcia_put_dev(p_dev); | |
1454 | return ret; | |
1455 | } | |
1456 | EXPORT_SYMBOL(pcmcia_dev_present); | |
1457 | ||
1458 | ||
90c6cdd1 DB |
1459 | static struct pcmcia_callback pcmcia_bus_callback = { |
1460 | .owner = THIS_MODULE, | |
1461 | .event = ds_event, | |
1462 | .requery = pcmcia_bus_rescan, | |
8e9e793d DB |
1463 | .suspend = pcmcia_bus_suspend, |
1464 | .resume = pcmcia_bus_resume, | |
90c6cdd1 DB |
1465 | }; |
1466 | ||
87373318 | 1467 | static int __devinit pcmcia_bus_add_socket(struct device *dev, |
d8539d81 | 1468 | struct class_interface *class_intf) |
1da177e4 | 1469 | { |
87373318 | 1470 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 LT |
1471 | int ret; |
1472 | ||
dc109497 DB |
1473 | socket = pcmcia_get_socket(socket); |
1474 | if (!socket) { | |
1da177e4 | 1475 | printk(KERN_ERR "PCMCIA obtaining reference to socket %p failed\n", socket); |
1da177e4 LT |
1476 | return -ENODEV; |
1477 | } | |
1478 | ||
1da177e4 LT |
1479 | /* |
1480 | * Ugly. But we want to wait for the socket threads to have started up. | |
1481 | * We really should let the drivers themselves drive some of this.. | |
1482 | */ | |
1483 | msleep(250); | |
1484 | ||
e7a480d2 | 1485 | #ifdef CONFIG_PCMCIA_IOCTL |
dc109497 | 1486 | init_waitqueue_head(&socket->queue); |
e7a480d2 | 1487 | #endif |
dc109497 | 1488 | INIT_LIST_HEAD(&socket->devices_list); |
4796b71f | 1489 | INIT_WORK(&socket->device_add, pcmcia_delayed_add_device); |
dc109497 DB |
1490 | memset(&socket->pcmcia_state, 0, sizeof(u8)); |
1491 | socket->device_count = 0; | |
1da177e4 | 1492 | |
90c6cdd1 | 1493 | ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback); |
1da177e4 LT |
1494 | if (ret) { |
1495 | printk(KERN_ERR "PCMCIA registration PCCard core failed for socket %p\n", socket); | |
dc109497 | 1496 | pcmcia_put_socket(socket); |
1da177e4 LT |
1497 | return (ret); |
1498 | } | |
1499 | ||
1500 | return 0; | |
1501 | } | |
1502 | ||
87373318 | 1503 | static void pcmcia_bus_remove_socket(struct device *dev, |
d8539d81 | 1504 | struct class_interface *class_intf) |
1da177e4 | 1505 | { |
87373318 | 1506 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 | 1507 | |
dc109497 | 1508 | if (!socket) |
1da177e4 LT |
1509 | return; |
1510 | ||
dc109497 | 1511 | socket->pcmcia_state.dead = 1; |
1da177e4 LT |
1512 | pccard_register_pcmcia(socket, NULL); |
1513 | ||
dfbc9e9d | 1514 | /* unregister any unbound devices */ |
8e4d9dcb | 1515 | mutex_lock(&socket->skt_mutex); |
dfbc9e9d | 1516 | pcmcia_card_remove(socket, NULL); |
8e4d9dcb | 1517 | mutex_unlock(&socket->skt_mutex); |
dfbc9e9d | 1518 | |
dc109497 | 1519 | pcmcia_put_socket(socket); |
1da177e4 LT |
1520 | |
1521 | return; | |
1522 | } | |
1523 | ||
1524 | ||
1525 | /* the pcmcia_bus_interface is used to handle pcmcia socket devices */ | |
ed49f5d0 | 1526 | static struct class_interface pcmcia_bus_interface __refdata = { |
1da177e4 | 1527 | .class = &pcmcia_socket_class, |
87373318 GKH |
1528 | .add_dev = &pcmcia_bus_add_socket, |
1529 | .remove_dev = &pcmcia_bus_remove_socket, | |
1da177e4 LT |
1530 | }; |
1531 | ||
1532 | ||
e7a480d2 | 1533 | struct bus_type pcmcia_bus_type = { |
1da177e4 | 1534 | .name = "pcmcia", |
312c004d | 1535 | .uevent = pcmcia_bus_uevent, |
1da177e4 LT |
1536 | .match = pcmcia_bus_match, |
1537 | .dev_attrs = pcmcia_dev_attrs, | |
1d0baa3a RK |
1538 | .probe = pcmcia_device_probe, |
1539 | .remove = pcmcia_device_remove, | |
8e9e793d DB |
1540 | .suspend = pcmcia_dev_suspend, |
1541 | .resume = pcmcia_dev_resume, | |
1da177e4 | 1542 | }; |
1da177e4 LT |
1543 | |
1544 | ||
1545 | static int __init init_pcmcia_bus(void) | |
1546 | { | |
ace7d477 RD |
1547 | int ret; |
1548 | ||
1da177e4 LT |
1549 | spin_lock_init(&pcmcia_dev_list_lock); |
1550 | ||
ace7d477 RD |
1551 | ret = bus_register(&pcmcia_bus_type); |
1552 | if (ret < 0) { | |
1553 | printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret); | |
1554 | return ret; | |
1555 | } | |
1556 | ret = class_interface_register(&pcmcia_bus_interface); | |
1557 | if (ret < 0) { | |
1558 | printk(KERN_WARNING | |
1559 | "pcmcia: class_interface_register error: %d\n", ret); | |
1560 | bus_unregister(&pcmcia_bus_type); | |
1561 | return ret; | |
1562 | } | |
1da177e4 | 1563 | |
e7a480d2 | 1564 | pcmcia_setup_ioctl(); |
1da177e4 LT |
1565 | |
1566 | return 0; | |
1567 | } | |
1568 | fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that | |
1569 | * pcmcia_socket_class is already registered */ | |
1570 | ||
1571 | ||
1572 | static void __exit exit_pcmcia_bus(void) | |
1573 | { | |
e7a480d2 | 1574 | pcmcia_cleanup_ioctl(); |
1da177e4 | 1575 | |
e7a480d2 | 1576 | class_interface_unregister(&pcmcia_bus_interface); |
1da177e4 LT |
1577 | |
1578 | bus_unregister(&pcmcia_bus_type); | |
1579 | } | |
1580 | module_exit(exit_pcmcia_bus); | |
1581 | ||
1582 | ||
1da177e4 | 1583 | MODULE_ALIAS("ds"); |