Commit | Line | Data |
---|---|---|
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 | ||
7d16b658 | 45 | #ifdef CONFIG_PCMCIA_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 { \ | |
ac449d6e | 51 | if (ds_pc_debug > (lvl)) \ |
1da177e4 LT |
52 | printk(KERN_DEBUG "ds: " fmt , ## arg); \ |
53 | } while (0) | |
ac449d6e DB |
54 | #define ds_dev_dbg(lvl, dev, fmt, arg...) do { \ |
55 | if (ds_pc_debug > (lvl)) \ | |
56 | dev_printk(KERN_DEBUG, dev, "ds: " fmt , ## arg); \ | |
57 | } while (0) | |
1da177e4 LT |
58 | #else |
59 | #define ds_dbg(lvl, fmt, arg...) do { } while (0) | |
ac449d6e | 60 | #define ds_dev_dbg(lvl, dev, fmt, arg...) do { } while (0) |
1da177e4 LT |
61 | #endif |
62 | ||
e7a480d2 | 63 | spinlock_t pcmcia_dev_list_lock; |
1da177e4 | 64 | |
1da177e4 LT |
65 | /*====================================================================*/ |
66 | ||
67 | /* code which was in cs.c before */ | |
68 | ||
69 | /* String tables for error messages */ | |
70 | ||
71 | typedef struct lookup_t { | |
72 | int key; | |
73 | char *msg; | |
74 | } lookup_t; | |
75 | ||
76 | static const lookup_t error_table[] = { | |
77 | { CS_SUCCESS, "Operation succeeded" }, | |
1da177e4 LT |
78 | { CS_BAD_ATTRIBUTE, "Bad attribute", }, |
79 | { CS_BAD_BASE, "Bad base address" }, | |
1da177e4 LT |
80 | { CS_BAD_IRQ, "Bad IRQ" }, |
81 | { CS_BAD_OFFSET, "Bad offset" }, | |
82 | { CS_BAD_PAGE, "Bad page number" }, | |
1da177e4 | 83 | { CS_BAD_SIZE, "Bad size" }, |
1da177e4 LT |
84 | { CS_BAD_TYPE, "Bad type" }, |
85 | { CS_BAD_VCC, "Bad Vcc" }, | |
86 | { CS_BAD_VPP, "Bad Vpp" }, | |
1da177e4 LT |
87 | { CS_NO_CARD, "No card present" }, |
88 | { CS_UNSUPPORTED_FUNCTION, "Usupported function" }, | |
89 | { CS_UNSUPPORTED_MODE, "Unsupported mode" }, | |
1da177e4 | 90 | { CS_GENERAL_FAILURE, "General failure" }, |
1da177e4 LT |
91 | { CS_BAD_ARGS, "Bad arguments" }, |
92 | { CS_CONFIGURATION_LOCKED, "Configuration locked" }, | |
93 | { CS_IN_USE, "Resource in use" }, | |
94 | { CS_NO_MORE_ITEMS, "No more items" }, | |
95 | { CS_OUT_OF_RESOURCE, "Out of resource" }, | |
96 | { CS_BAD_HANDLE, "Bad handle" }, | |
97 | { CS_BAD_TUPLE, "Bad CIS tuple" } | |
98 | }; | |
99 | ||
100 | ||
101 | static const lookup_t service_table[] = { | |
102 | { AccessConfigurationRegister, "AccessConfigurationRegister" }, | |
103 | { AddSocketServices, "AddSocketServices" }, | |
104 | { AdjustResourceInfo, "AdjustResourceInfo" }, | |
105 | { CheckEraseQueue, "CheckEraseQueue" }, | |
106 | { CloseMemory, "CloseMemory" }, | |
107 | { DeregisterClient, "DeregisterClient" }, | |
108 | { DeregisterEraseQueue, "DeregisterEraseQueue" }, | |
109 | { GetCardServicesInfo, "GetCardServicesInfo" }, | |
110 | { GetClientInfo, "GetClientInfo" }, | |
111 | { GetConfigurationInfo, "GetConfigurationInfo" }, | |
112 | { GetEventMask, "GetEventMask" }, | |
113 | { GetFirstClient, "GetFirstClient" }, | |
114 | { GetFirstRegion, "GetFirstRegion" }, | |
115 | { GetFirstTuple, "GetFirstTuple" }, | |
116 | { GetNextClient, "GetNextClient" }, | |
117 | { GetNextRegion, "GetNextRegion" }, | |
118 | { GetNextTuple, "GetNextTuple" }, | |
119 | { GetStatus, "GetStatus" }, | |
120 | { GetTupleData, "GetTupleData" }, | |
121 | { MapMemPage, "MapMemPage" }, | |
122 | { ModifyConfiguration, "ModifyConfiguration" }, | |
123 | { ModifyWindow, "ModifyWindow" }, | |
124 | { OpenMemory, "OpenMemory" }, | |
125 | { ParseTuple, "ParseTuple" }, | |
126 | { ReadMemory, "ReadMemory" }, | |
127 | { RegisterClient, "RegisterClient" }, | |
128 | { RegisterEraseQueue, "RegisterEraseQueue" }, | |
129 | { RegisterMTD, "RegisterMTD" }, | |
130 | { ReleaseConfiguration, "ReleaseConfiguration" }, | |
131 | { ReleaseIO, "ReleaseIO" }, | |
132 | { ReleaseIRQ, "ReleaseIRQ" }, | |
133 | { ReleaseWindow, "ReleaseWindow" }, | |
134 | { RequestConfiguration, "RequestConfiguration" }, | |
135 | { RequestIO, "RequestIO" }, | |
136 | { RequestIRQ, "RequestIRQ" }, | |
137 | { RequestSocketMask, "RequestSocketMask" }, | |
138 | { RequestWindow, "RequestWindow" }, | |
139 | { ResetCard, "ResetCard" }, | |
140 | { SetEventMask, "SetEventMask" }, | |
141 | { ValidateCIS, "ValidateCIS" }, | |
142 | { WriteMemory, "WriteMemory" }, | |
143 | { BindDevice, "BindDevice" }, | |
144 | { BindMTD, "BindMTD" }, | |
145 | { ReportError, "ReportError" }, | |
146 | { SuspendCard, "SuspendCard" }, | |
147 | { ResumeCard, "ResumeCard" }, | |
148 | { EjectCard, "EjectCard" }, | |
149 | { InsertCard, "InsertCard" }, | |
150 | { ReplaceCIS, "ReplaceCIS" } | |
151 | }; | |
152 | ||
153 | ||
2bc5a9bd | 154 | static int pcmcia_report_error(struct pcmcia_device *p_dev, error_info_t *err) |
1da177e4 LT |
155 | { |
156 | int i; | |
157 | char *serv; | |
158 | ||
2bc5a9bd | 159 | if (!p_dev) |
1da177e4 | 160 | printk(KERN_NOTICE); |
2bc5a9bd | 161 | else |
1da177e4 | 162 | printk(KERN_NOTICE "%s: ", p_dev->dev.bus_id); |
1da177e4 LT |
163 | |
164 | for (i = 0; i < ARRAY_SIZE(service_table); i++) | |
165 | if (service_table[i].key == err->func) | |
166 | break; | |
167 | if (i < ARRAY_SIZE(service_table)) | |
168 | serv = service_table[i].msg; | |
169 | else | |
170 | serv = "Unknown service number"; | |
171 | ||
172 | for (i = 0; i < ARRAY_SIZE(error_table); i++) | |
173 | if (error_table[i].key == err->retcode) | |
174 | break; | |
175 | if (i < ARRAY_SIZE(error_table)) | |
176 | printk("%s: %s\n", serv, error_table[i].msg); | |
177 | else | |
178 | printk("%s: Unknown error code %#x\n", serv, err->retcode); | |
179 | ||
4c89e88b | 180 | return 0; |
1da177e4 | 181 | } /* report_error */ |
1da177e4 LT |
182 | |
183 | /* end of code which was in cs.c before */ | |
184 | ||
185 | /*======================================================================*/ | |
186 | ||
2bc5a9bd | 187 | void cs_error(struct pcmcia_device *p_dev, int func, int ret) |
1da177e4 LT |
188 | { |
189 | error_info_t err = { func, ret }; | |
2bc5a9bd | 190 | pcmcia_report_error(p_dev, &err); |
1da177e4 LT |
191 | } |
192 | EXPORT_SYMBOL(cs_error); | |
193 | ||
23a83bfe DB |
194 | |
195 | static void pcmcia_check_driver(struct pcmcia_driver *p_drv) | |
196 | { | |
197 | struct pcmcia_device_id *did = p_drv->id_table; | |
198 | unsigned int i; | |
199 | u32 hash; | |
200 | ||
f8cfa618 | 201 | if (!p_drv->probe || !p_drv->remove) |
ba5bb6b5 PR |
202 | printk(KERN_DEBUG "pcmcia: %s lacks a requisite callback " |
203 | "function\n", p_drv->drv.name); | |
1e212f36 | 204 | |
23a83bfe DB |
205 | while (did && did->match_flags) { |
206 | for (i=0; i<4; i++) { | |
207 | if (!did->prod_id[i]) | |
208 | continue; | |
209 | ||
210 | hash = crc32(0, did->prod_id[i], strlen(did->prod_id[i])); | |
211 | if (hash == did->prod_id_hash[i]) | |
212 | continue; | |
213 | ||
214 | printk(KERN_DEBUG "pcmcia: %s: invalid hash for " | |
215 | "product string \"%s\": is 0x%x, should " | |
216 | "be 0x%x\n", p_drv->drv.name, did->prod_id[i], | |
217 | did->prod_id_hash[i], hash); | |
5085cb26 DB |
218 | printk(KERN_DEBUG "pcmcia: see " |
219 | "Documentation/pcmcia/devicetable.txt for " | |
220 | "details\n"); | |
23a83bfe DB |
221 | } |
222 | did++; | |
223 | } | |
224 | ||
225 | return; | |
226 | } | |
227 | ||
daa9517d | 228 | |
1da177e4 LT |
229 | /*======================================================================*/ |
230 | ||
1da177e4 | 231 | |
6179b556 BW |
232 | struct pcmcia_dynid { |
233 | struct list_head node; | |
234 | struct pcmcia_device_id id; | |
235 | }; | |
236 | ||
237 | /** | |
238 | * pcmcia_store_new_id - add a new PCMCIA device ID to this driver and re-probe devices | |
239 | * @driver: target device driver | |
240 | * @buf: buffer for scanning device ID data | |
241 | * @count: input size | |
242 | * | |
243 | * Adds a new dynamic PCMCIA device ID to this driver, | |
244 | * and causes the driver to probe for all devices again. | |
245 | */ | |
246 | static ssize_t | |
247 | pcmcia_store_new_id(struct device_driver *driver, const char *buf, size_t count) | |
248 | { | |
249 | struct pcmcia_dynid *dynid; | |
250 | struct pcmcia_driver *pdrv = to_pcmcia_drv(driver); | |
251 | __u16 match_flags, manf_id, card_id; | |
252 | __u8 func_id, function, device_no; | |
253 | __u32 prod_id_hash[4] = {0, 0, 0, 0}; | |
254 | int fields=0; | |
255 | int retval = 0; | |
256 | ||
257 | fields = sscanf(buf, "%hx %hx %hx %hhx %hhx %hhx %x %x %x %x", | |
258 | &match_flags, &manf_id, &card_id, &func_id, &function, &device_no, | |
259 | &prod_id_hash[0], &prod_id_hash[1], &prod_id_hash[2], &prod_id_hash[3]); | |
260 | if (fields < 6) | |
261 | return -EINVAL; | |
262 | ||
263 | dynid = kzalloc(sizeof(struct pcmcia_dynid), GFP_KERNEL); | |
264 | if (!dynid) | |
265 | return -ENOMEM; | |
266 | ||
267 | INIT_LIST_HEAD(&dynid->node); | |
268 | dynid->id.match_flags = match_flags; | |
269 | dynid->id.manf_id = manf_id; | |
270 | dynid->id.card_id = card_id; | |
271 | dynid->id.func_id = func_id; | |
272 | dynid->id.function = function; | |
273 | dynid->id.device_no = device_no; | |
274 | memcpy(dynid->id.prod_id_hash, prod_id_hash, sizeof(__u32) * 4); | |
275 | ||
276 | spin_lock(&pdrv->dynids.lock); | |
277 | list_add_tail(&pdrv->dynids.list, &dynid->node); | |
278 | spin_unlock(&pdrv->dynids.lock); | |
279 | ||
280 | if (get_driver(&pdrv->drv)) { | |
281 | retval = driver_attach(&pdrv->drv); | |
282 | put_driver(&pdrv->drv); | |
283 | } | |
284 | ||
285 | if (retval) | |
286 | return retval; | |
287 | return count; | |
288 | } | |
289 | static DRIVER_ATTR(new_id, S_IWUSR, NULL, pcmcia_store_new_id); | |
290 | ||
291 | static void | |
292 | pcmcia_free_dynids(struct pcmcia_driver *drv) | |
293 | { | |
294 | struct pcmcia_dynid *dynid, *n; | |
295 | ||
296 | spin_lock(&drv->dynids.lock); | |
297 | list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) { | |
298 | list_del(&dynid->node); | |
299 | kfree(dynid); | |
300 | } | |
301 | spin_unlock(&drv->dynids.lock); | |
302 | } | |
303 | ||
304 | static int | |
305 | pcmcia_create_newid_file(struct pcmcia_driver *drv) | |
306 | { | |
307 | int error = 0; | |
308 | if (drv->probe != NULL) | |
2344c6de | 309 | error = driver_create_file(&drv->drv, &driver_attr_new_id); |
6179b556 BW |
310 | return error; |
311 | } | |
312 | ||
313 | ||
1da177e4 LT |
314 | /** |
315 | * pcmcia_register_driver - register a PCMCIA driver with the bus core | |
78187865 | 316 | * @driver: the &driver being registered |
1da177e4 LT |
317 | * |
318 | * Registers a PCMCIA driver with the PCMCIA bus core. | |
319 | */ | |
1da177e4 LT |
320 | int pcmcia_register_driver(struct pcmcia_driver *driver) |
321 | { | |
6179b556 BW |
322 | int error; |
323 | ||
1da177e4 LT |
324 | if (!driver) |
325 | return -EINVAL; | |
326 | ||
23a83bfe DB |
327 | pcmcia_check_driver(driver); |
328 | ||
1da177e4 LT |
329 | /* initialize common fields */ |
330 | driver->drv.bus = &pcmcia_bus_type; | |
331 | driver->drv.owner = driver->owner; | |
6179b556 BW |
332 | spin_lock_init(&driver->dynids.lock); |
333 | INIT_LIST_HEAD(&driver->dynids.list); | |
1da177e4 | 334 | |
d9d9ea01 DB |
335 | ds_dbg(3, "registering driver %s\n", driver->drv.name); |
336 | ||
6179b556 BW |
337 | error = driver_register(&driver->drv); |
338 | if (error < 0) | |
339 | return error; | |
340 | ||
341 | error = pcmcia_create_newid_file(driver); | |
342 | if (error) | |
343 | driver_unregister(&driver->drv); | |
344 | ||
345 | return error; | |
1da177e4 LT |
346 | } |
347 | EXPORT_SYMBOL(pcmcia_register_driver); | |
348 | ||
349 | /** | |
350 | * pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core | |
78187865 | 351 | * @driver: the &driver being unregistered |
1da177e4 LT |
352 | */ |
353 | void pcmcia_unregister_driver(struct pcmcia_driver *driver) | |
354 | { | |
d9d9ea01 | 355 | ds_dbg(3, "unregistering driver %s\n", driver->drv.name); |
1da177e4 | 356 | driver_unregister(&driver->drv); |
6179b556 | 357 | pcmcia_free_dynids(driver); |
1da177e4 LT |
358 | } |
359 | EXPORT_SYMBOL(pcmcia_unregister_driver); | |
360 | ||
1da177e4 LT |
361 | |
362 | /* pcmcia_device handling */ | |
363 | ||
e7a480d2 | 364 | struct pcmcia_device * pcmcia_get_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
365 | { |
366 | struct device *tmp_dev; | |
367 | tmp_dev = get_device(&p_dev->dev); | |
368 | if (!tmp_dev) | |
369 | return NULL; | |
370 | return to_pcmcia_dev(tmp_dev); | |
371 | } | |
372 | ||
e7a480d2 | 373 | void pcmcia_put_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
374 | { |
375 | if (p_dev) | |
376 | put_device(&p_dev->dev); | |
377 | } | |
378 | ||
360b65b9 DB |
379 | static void pcmcia_release_function(struct kref *ref) |
380 | { | |
381 | struct config_t *c = container_of(ref, struct config_t, ref); | |
d9d9ea01 | 382 | ds_dbg(1, "releasing config_t\n"); |
360b65b9 DB |
383 | kfree(c); |
384 | } | |
385 | ||
1da177e4 LT |
386 | static void pcmcia_release_dev(struct device *dev) |
387 | { | |
388 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
ac449d6e | 389 | ds_dev_dbg(1, dev, "releasing device\n"); |
dc109497 | 390 | pcmcia_put_socket(p_dev->socket); |
bd65a685 | 391 | kfree(p_dev->devname); |
360b65b9 | 392 | kref_put(&p_dev->function_config->ref, pcmcia_release_function); |
1da177e4 LT |
393 | kfree(p_dev); |
394 | } | |
395 | ||
1d2c9042 | 396 | static void pcmcia_add_device_later(struct pcmcia_socket *s, int mfc) |
82d56e6d DB |
397 | { |
398 | if (!s->pcmcia_state.device_add_pending) { | |
ac449d6e | 399 | ds_dev_dbg(1, &s->dev, "scheduling to add %s secondary" |
d9d9ea01 | 400 | " device to %d\n", mfc ? "mfc" : "pfc", s->sock); |
82d56e6d | 401 | s->pcmcia_state.device_add_pending = 1; |
1d2c9042 | 402 | s->pcmcia_state.mfc_pfc = mfc; |
82d56e6d DB |
403 | schedule_work(&s->device_add); |
404 | } | |
405 | return; | |
406 | } | |
1da177e4 LT |
407 | |
408 | static int pcmcia_device_probe(struct device * dev) | |
409 | { | |
410 | struct pcmcia_device *p_dev; | |
411 | struct pcmcia_driver *p_drv; | |
82d56e6d | 412 | struct pcmcia_device_id *did; |
f8cfa618 | 413 | struct pcmcia_socket *s; |
af2b3b50 | 414 | cistpl_config_t cis_config; |
1da177e4 LT |
415 | int ret = 0; |
416 | ||
417 | dev = get_device(dev); | |
418 | if (!dev) | |
419 | return -ENODEV; | |
420 | ||
421 | p_dev = to_pcmcia_dev(dev); | |
422 | p_drv = to_pcmcia_drv(dev->driver); | |
f8cfa618 | 423 | s = p_dev->socket; |
1da177e4 | 424 | |
ac449d6e | 425 | ds_dev_dbg(1, dev, "trying to bind to %s\n", p_drv->drv.name); |
d9d9ea01 | 426 | |
360b65b9 DB |
427 | if ((!p_drv->probe) || (!p_dev->function_config) || |
428 | (!try_module_get(p_drv->owner))) { | |
1da177e4 LT |
429 | ret = -EINVAL; |
430 | goto put_dev; | |
431 | } | |
432 | ||
af2b3b50 DB |
433 | /* set up some more device information */ |
434 | ret = pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_CONFIG, | |
435 | &cis_config); | |
436 | if (!ret) { | |
437 | p_dev->conf.ConfigBase = cis_config.base; | |
438 | p_dev->conf.Present = cis_config.rmask[0]; | |
439 | } else { | |
ac449d6e DB |
440 | dev_printk(KERN_INFO, dev, |
441 | "pcmcia: could not parse base and rmask0 of CIS\n"); | |
af2b3b50 DB |
442 | p_dev->conf.ConfigBase = 0; |
443 | p_dev->conf.Present = 0; | |
444 | } | |
445 | ||
f8cfa618 | 446 | ret = p_drv->probe(p_dev); |
d9d9ea01 | 447 | if (ret) { |
ac449d6e DB |
448 | ds_dev_dbg(1, dev, "binding to %s failed with %d\n", |
449 | p_drv->drv.name, ret); | |
82d56e6d | 450 | goto put_module; |
d9d9ea01 | 451 | } |
82d56e6d DB |
452 | |
453 | /* handle pseudo multifunction devices: | |
454 | * there are at most two pseudo multifunction devices. | |
455 | * if we're matching against the first, schedule a | |
456 | * call which will then check whether there are two | |
457 | * pseudo devices, and if not, add the second one. | |
458 | */ | |
80a55e92 | 459 | did = p_dev->dev.driver_data; |
4ceadbf5 | 460 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
82d56e6d | 461 | (p_dev->socket->device_count == 1) && (p_dev->device_no == 0)) |
1d2c9042 | 462 | pcmcia_add_device_later(p_dev->socket, 0); |
f8cfa618 DB |
463 | |
464 | put_module: | |
1da177e4 LT |
465 | if (ret) |
466 | module_put(p_drv->owner); | |
467 | put_dev: | |
f8cfa618 | 468 | if (ret) |
1da177e4 LT |
469 | put_device(dev); |
470 | return (ret); | |
471 | } | |
472 | ||
473 | ||
d6ff5a85 DB |
474 | /* |
475 | * Removes a PCMCIA card from the device tree and socket list. | |
476 | */ | |
477 | static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *leftover) | |
478 | { | |
479 | struct pcmcia_device *p_dev; | |
480 | struct pcmcia_device *tmp; | |
481 | unsigned long flags; | |
482 | ||
ac449d6e DB |
483 | ds_dev_dbg(2, leftover ? &leftover->dev : &s->dev, |
484 | "pcmcia_card_remove(%d) %s\n", s->sock, | |
485 | leftover ? leftover->devname : ""); | |
d6ff5a85 DB |
486 | |
487 | if (!leftover) | |
488 | s->device_count = 0; | |
489 | else | |
490 | s->device_count = 1; | |
491 | ||
492 | /* unregister all pcmcia_devices registered with this socket, except leftover */ | |
493 | list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) { | |
494 | if (p_dev == leftover) | |
495 | continue; | |
496 | ||
497 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
498 | list_del(&p_dev->socket_device_list); | |
499 | p_dev->_removed=1; | |
500 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
501 | ||
ac449d6e | 502 | ds_dev_dbg(2, &p_dev->dev, "unregistering device\n"); |
d6ff5a85 DB |
503 | device_unregister(&p_dev->dev); |
504 | } | |
505 | ||
506 | return; | |
507 | } | |
508 | ||
1da177e4 LT |
509 | static int pcmcia_device_remove(struct device * dev) |
510 | { | |
511 | struct pcmcia_device *p_dev; | |
512 | struct pcmcia_driver *p_drv; | |
d6ff5a85 | 513 | struct pcmcia_device_id *did; |
cc3b4866 | 514 | int i; |
1da177e4 | 515 | |
1da177e4 LT |
516 | p_dev = to_pcmcia_dev(dev); |
517 | p_drv = to_pcmcia_drv(dev->driver); | |
d6ff5a85 | 518 | |
ac449d6e | 519 | ds_dev_dbg(1, dev, "removing device\n"); |
d9d9ea01 | 520 | |
d6ff5a85 DB |
521 | /* If we're removing the primary module driving a |
522 | * pseudo multi-function card, we need to unbind | |
523 | * all devices | |
524 | */ | |
80a55e92 | 525 | did = p_dev->dev.driver_data; |
b2f51a1c | 526 | if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && |
d6ff5a85 DB |
527 | (p_dev->socket->device_count != 0) && |
528 | (p_dev->device_no == 0)) | |
529 | pcmcia_card_remove(p_dev->socket, p_dev); | |
530 | ||
531 | /* detach the "instance" */ | |
f3990715 DB |
532 | if (!p_drv) |
533 | return 0; | |
1da177e4 | 534 | |
f3990715 | 535 | if (p_drv->remove) |
cc3b4866 DB |
536 | p_drv->remove(p_dev); |
537 | ||
a0aab143 DB |
538 | p_dev->dev_node = NULL; |
539 | ||
f3990715 | 540 | /* check for proper unloading */ |
e2d40963 | 541 | if (p_dev->_irq || p_dev->_io || p_dev->_locked) |
ac449d6e DB |
542 | dev_printk(KERN_INFO, dev, |
543 | "pcmcia: driver %s did not release config properly\n", | |
544 | p_drv->drv.name); | |
cc3b4866 | 545 | |
f3990715 | 546 | for (i = 0; i < MAX_WIN; i++) |
e2d40963 | 547 | if (p_dev->_win & CLIENT_WIN_REQ(i)) |
ac449d6e DB |
548 | dev_printk(KERN_INFO, dev, |
549 | "pcmcia: driver %s did not release window properly\n", | |
550 | p_drv->drv.name); | |
cc3b4866 | 551 | |
f3990715 DB |
552 | /* references from pcmcia_probe_device */ |
553 | pcmcia_put_dev(p_dev); | |
554 | module_put(p_drv->owner); | |
1da177e4 LT |
555 | |
556 | return 0; | |
557 | } | |
558 | ||
559 | ||
1da177e4 LT |
560 | /* |
561 | * pcmcia_device_query -- determine information about a pcmcia device | |
562 | */ | |
563 | static int pcmcia_device_query(struct pcmcia_device *p_dev) | |
564 | { | |
565 | cistpl_manfid_t manf_id; | |
566 | cistpl_funcid_t func_id; | |
76fa82fb | 567 | cistpl_vers_1_t *vers1; |
1da177e4 LT |
568 | unsigned int i; |
569 | ||
76fa82fb IM |
570 | vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL); |
571 | if (!vers1) | |
572 | return -ENOMEM; | |
573 | ||
1da177e4 LT |
574 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
575 | CISTPL_MANFID, &manf_id)) { | |
576 | p_dev->manf_id = manf_id.manf; | |
577 | p_dev->card_id = manf_id.card; | |
578 | p_dev->has_manf_id = 1; | |
579 | p_dev->has_card_id = 1; | |
580 | } | |
581 | ||
582 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, | |
583 | CISTPL_FUNCID, &func_id)) { | |
584 | p_dev->func_id = func_id.func; | |
585 | p_dev->has_func_id = 1; | |
586 | } else { | |
587 | /* rule of thumb: cards with no FUNCID, but with | |
588 | * common memory device geometry information, are | |
589 | * probably memory cards (from pcmcia-cs) */ | |
76fa82fb IM |
590 | cistpl_device_geo_t *devgeo; |
591 | ||
592 | devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL); | |
593 | if (!devgeo) { | |
594 | kfree(vers1); | |
595 | return -ENOMEM; | |
596 | } | |
1da177e4 | 597 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
76fa82fb | 598 | CISTPL_DEVICE_GEO, devgeo)) { |
ac449d6e DB |
599 | ds_dev_dbg(0, &p_dev->dev, |
600 | "mem device geometry probably means " | |
601 | "FUNCID_MEMORY\n"); | |
1da177e4 LT |
602 | p_dev->func_id = CISTPL_FUNCID_MEMORY; |
603 | p_dev->has_func_id = 1; | |
604 | } | |
76fa82fb | 605 | kfree(devgeo); |
1da177e4 LT |
606 | } |
607 | ||
608 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_VERS_1, | |
76fa82fb IM |
609 | vers1)) { |
610 | for (i=0; i < vers1->ns; i++) { | |
1da177e4 LT |
611 | char *tmp; |
612 | unsigned int length; | |
613 | ||
76fa82fb | 614 | tmp = vers1->str + vers1->ofs[i]; |
1da177e4 LT |
615 | |
616 | length = strlen(tmp) + 1; | |
6e3d4f25 | 617 | if ((length < 2) || (length > 255)) |
1da177e4 LT |
618 | continue; |
619 | ||
620 | p_dev->prod_id[i] = kmalloc(sizeof(char) * length, | |
621 | GFP_KERNEL); | |
622 | if (!p_dev->prod_id[i]) | |
623 | continue; | |
624 | ||
625 | p_dev->prod_id[i] = strncpy(p_dev->prod_id[i], | |
626 | tmp, length); | |
627 | } | |
628 | } | |
629 | ||
76fa82fb | 630 | kfree(vers1); |
1da177e4 LT |
631 | return 0; |
632 | } | |
633 | ||
634 | ||
635 | /* device_add_lock is needed to avoid double registration by cardmgr and kernel. | |
636 | * Serializes pcmcia_device_add; will most likely be removed in future. | |
637 | * | |
638 | * While it has the caveat that adding new PCMCIA devices inside(!) device_register() | |
639 | * won't work, this doesn't matter much at the moment: the driver core doesn't | |
640 | * support it either. | |
641 | */ | |
7fe908dd | 642 | static DEFINE_MUTEX(device_add_lock); |
1da177e4 | 643 | |
dc109497 | 644 | struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function) |
1da177e4 | 645 | { |
360b65b9 | 646 | struct pcmcia_device *p_dev, *tmp_dev; |
1da177e4 | 647 | unsigned long flags; |
bd65a685 | 648 | int bus_id_len; |
1da177e4 | 649 | |
dc109497 | 650 | s = pcmcia_get_socket(s); |
1da177e4 LT |
651 | if (!s) |
652 | return NULL; | |
653 | ||
7fe908dd | 654 | mutex_lock(&device_add_lock); |
1da177e4 | 655 | |
d9d9ea01 DB |
656 | ds_dbg(3, "adding device to %d, function %d\n", s->sock, function); |
657 | ||
6cf5be51 DB |
658 | /* max of 4 devices per card */ |
659 | if (s->device_count == 4) | |
1ad275e3 DB |
660 | goto err_put; |
661 | ||
8084b372 | 662 | p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL); |
1da177e4 LT |
663 | if (!p_dev) |
664 | goto err_put; | |
1da177e4 | 665 | |
dc109497 | 666 | p_dev->socket = s; |
1da177e4 LT |
667 | p_dev->device_no = (s->device_count++); |
668 | p_dev->func = function; | |
669 | ||
670 | p_dev->dev.bus = &pcmcia_bus_type; | |
87373318 | 671 | p_dev->dev.parent = s->dev.parent; |
1da177e4 | 672 | p_dev->dev.release = pcmcia_release_dev; |
43d9f7fd JB |
673 | /* by default don't allow DMA */ |
674 | p_dev->dma_mask = DMA_MASK_NONE; | |
675 | p_dev->dev.dma_mask = &p_dev->dma_mask; | |
bd65a685 BG |
676 | bus_id_len = sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no); |
677 | ||
678 | p_dev->devname = kmalloc(6 + bus_id_len + 1, GFP_KERNEL); | |
679 | if (!p_dev->devname) | |
680 | goto err_free; | |
681 | sprintf (p_dev->devname, "pcmcia%s", p_dev->dev.bus_id); | |
ac449d6e | 682 | ds_dev_dbg(3, &p_dev->dev, "devname is %s\n", p_dev->devname); |
1da177e4 | 683 | |
1da177e4 | 684 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
360b65b9 DB |
685 | |
686 | /* | |
687 | * p_dev->function_config must be the same for all card functions. | |
688 | * Note that this is serialized by the device_add_lock, so that | |
689 | * only one such struct will be created. | |
690 | */ | |
691 | list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list) | |
692 | if (p_dev->func == tmp_dev->func) { | |
693 | p_dev->function_config = tmp_dev->function_config; | |
694 | kref_get(&p_dev->function_config->ref); | |
695 | } | |
696 | ||
697 | /* Add to the list in pcmcia_bus_socket */ | |
6171b88b | 698 | list_add(&p_dev->socket_device_list, &s->devices_list); |
360b65b9 | 699 | |
1da177e4 LT |
700 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
701 | ||
360b65b9 | 702 | if (!p_dev->function_config) { |
ac449d6e | 703 | ds_dev_dbg(3, &p_dev->dev, "creating config_t\n"); |
360b65b9 DB |
704 | p_dev->function_config = kzalloc(sizeof(struct config_t), |
705 | GFP_KERNEL); | |
706 | if (!p_dev->function_config) | |
707 | goto err_unreg; | |
708 | kref_init(&p_dev->function_config->ref); | |
709 | } | |
710 | ||
ac449d6e DB |
711 | dev_printk(KERN_NOTICE, &p_dev->dev, |
712 | "pcmcia: registering new device %s\n", | |
713 | p_dev->devname); | |
807277cb | 714 | |
1ad275e3 DB |
715 | pcmcia_device_query(p_dev); |
716 | ||
360b65b9 DB |
717 | if (device_register(&p_dev->dev)) |
718 | goto err_unreg; | |
1da177e4 | 719 | |
7fe908dd | 720 | mutex_unlock(&device_add_lock); |
1da177e4 LT |
721 | |
722 | return p_dev; | |
723 | ||
360b65b9 DB |
724 | err_unreg: |
725 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
726 | list_del(&p_dev->socket_device_list); | |
727 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
728 | ||
1da177e4 | 729 | err_free: |
bd65a685 | 730 | kfree(p_dev->devname); |
1da177e4 LT |
731 | kfree(p_dev); |
732 | s->device_count--; | |
733 | err_put: | |
7fe908dd | 734 | mutex_unlock(&device_add_lock); |
dc109497 | 735 | pcmcia_put_socket(s); |
1da177e4 LT |
736 | |
737 | return NULL; | |
738 | } | |
739 | ||
740 | ||
741 | static int pcmcia_card_add(struct pcmcia_socket *s) | |
742 | { | |
1da177e4 | 743 | cistpl_longlink_mfc_t mfc; |
c5081d5f | 744 | unsigned int no_funcs, i, no_chains; |
1da177e4 LT |
745 | int ret = 0; |
746 | ||
d9d9ea01 | 747 | if (!(s->resource_setup_done)) { |
ac449d6e DB |
748 | ds_dev_dbg(3, &s->dev, |
749 | "no resources available, delaying card_add\n"); | |
1da177e4 | 750 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 751 | } |
1da177e4 | 752 | |
d9d9ea01 | 753 | if (pcmcia_validate_mem(s)) { |
ac449d6e | 754 | ds_dev_dbg(3, &s->dev, "validating mem resources failed, " |
d9d9ea01 | 755 | "delaying card_add\n"); |
de75914e | 756 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 757 | } |
de75914e | 758 | |
c5081d5f DB |
759 | ret = pccard_validate_cis(s, BIND_FN_ALL, &no_chains); |
760 | if (ret || !no_chains) { | |
ac449d6e | 761 | ds_dev_dbg(0, &s->dev, "invalid CIS or invalid resources\n"); |
1da177e4 LT |
762 | return -ENODEV; |
763 | } | |
764 | ||
765 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
766 | no_funcs = mfc.nfn; | |
767 | else | |
768 | no_funcs = 1; | |
1d2c9042 | 769 | s->functions = no_funcs; |
1da177e4 | 770 | |
1da177e4 | 771 | for (i=0; i < no_funcs; i++) |
dc109497 | 772 | pcmcia_device_add(s, i); |
1da177e4 LT |
773 | |
774 | return (ret); | |
775 | } | |
776 | ||
777 | ||
4796b71f | 778 | static void pcmcia_delayed_add_device(struct work_struct *work) |
1ad275e3 | 779 | { |
c4028958 DH |
780 | struct pcmcia_socket *s = |
781 | container_of(work, struct pcmcia_socket, device_add); | |
ac449d6e | 782 | ds_dev_dbg(1, &s->dev, "adding additional device to %d\n", s->sock); |
1d2c9042 | 783 | pcmcia_device_add(s, s->pcmcia_state.mfc_pfc); |
b5e43913 | 784 | s->pcmcia_state.device_add_pending = 0; |
1d2c9042 | 785 | s->pcmcia_state.mfc_pfc = 0; |
1ad275e3 DB |
786 | } |
787 | ||
e2f0b534 | 788 | static int pcmcia_requery(struct device *dev, void * _data) |
ff1fa9ef | 789 | { |
e2f0b534 | 790 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
d9d9ea01 | 791 | if (!p_dev->dev.driver) { |
ac449d6e | 792 | ds_dev_dbg(1, dev, "update device information\n"); |
e2f0b534 | 793 | pcmcia_device_query(p_dev); |
d9d9ea01 | 794 | } |
e2f0b534 DB |
795 | |
796 | return 0; | |
797 | } | |
798 | ||
4ae1cbf1 | 799 | static void pcmcia_bus_rescan(struct pcmcia_socket *skt, int new_cis) |
e2f0b534 | 800 | { |
4ae1cbf1 | 801 | int no_devices = 0; |
f901b8c4 | 802 | int ret = 0; |
e2f0b534 DB |
803 | unsigned long flags; |
804 | ||
7fe908dd | 805 | /* must be called with skt_mutex held */ |
ac449d6e | 806 | ds_dev_dbg(0, &skt->dev, "re-scanning socket %d\n", skt->sock); |
d9d9ea01 | 807 | |
e2f0b534 | 808 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
dc109497 | 809 | if (list_empty(&skt->devices_list)) |
4ae1cbf1 | 810 | no_devices = 1; |
e2f0b534 DB |
811 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
812 | ||
4ae1cbf1 DB |
813 | /* If this is because of a CIS override, start over */ |
814 | if (new_cis && !no_devices) | |
815 | pcmcia_card_remove(skt, NULL); | |
816 | ||
e2f0b534 DB |
817 | /* if no devices were added for this socket yet because of |
818 | * missing resource information or other trouble, we need to | |
819 | * do this now. */ | |
4ae1cbf1 | 820 | if (no_devices || new_cis) { |
f901b8c4 | 821 | ret = pcmcia_card_add(skt); |
e2f0b534 DB |
822 | if (ret) |
823 | return; | |
824 | } | |
825 | ||
826 | /* some device information might have changed because of a CIS | |
827 | * update or because we can finally read it correctly... so | |
828 | * determine it again, overwriting old values if necessary. */ | |
829 | bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery); | |
830 | ||
831 | /* we re-scan all devices, not just the ones connected to this | |
832 | * socket. This does not matter, though. */ | |
f901b8c4 DB |
833 | ret = bus_rescan_devices(&pcmcia_bus_type); |
834 | if (ret) | |
835 | printk(KERN_INFO "pcmcia: bus_rescan_devices failed\n"); | |
ff1fa9ef | 836 | } |
1ad275e3 | 837 | |
1d2c9042 DB |
838 | #ifdef CONFIG_PCMCIA_LOAD_CIS |
839 | ||
840 | /** | |
841 | * pcmcia_load_firmware - load CIS from userspace if device-provided is broken | |
78187865 RD |
842 | * @dev: the pcmcia device which needs a CIS override |
843 | * @filename: requested filename in /lib/firmware/ | |
1d2c9042 DB |
844 | * |
845 | * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if | |
846 | * the one provided by the card is broken. The firmware files reside in | |
847 | * /lib/firmware/ in userspace. | |
848 | */ | |
849 | static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
850 | { | |
851 | struct pcmcia_socket *s = dev->socket; | |
852 | const struct firmware *fw; | |
feda4f2c | 853 | char path[FIRMWARE_NAME_MAX]; |
1d2c9042 DB |
854 | int ret = -ENOMEM; |
855 | int no_funcs; | |
856 | int old_funcs; | |
1d2c9042 DB |
857 | cistpl_longlink_mfc_t mfc; |
858 | ||
859 | if (!filename) | |
860 | return -EINVAL; | |
861 | ||
ac449d6e | 862 | ds_dev_dbg(1, &dev->dev, "trying to load CIS file %s\n", filename); |
1d2c9042 | 863 | |
feda4f2c | 864 | if (strlen(filename) > (FIRMWARE_NAME_MAX - 1)) { |
ac449d6e DB |
865 | dev_printk(KERN_WARNING, &dev->dev, |
866 | "pcmcia: CIS filename is too long [%s]\n", | |
867 | filename); | |
1d2c9042 | 868 | return -EINVAL; |
d9d9ea01 | 869 | } |
1d2c9042 | 870 | |
52debb06 | 871 | snprintf(path, sizeof(path), "%s", filename); |
1d2c9042 DB |
872 | |
873 | if (request_firmware(&fw, path, &dev->dev) == 0) { | |
d9d9ea01 DB |
874 | if (fw->size >= CISTPL_MAX_CIS_SIZE) { |
875 | ret = -EINVAL; | |
ac449d6e DB |
876 | dev_printk(KERN_ERR, &dev->dev, |
877 | "pcmcia: CIS override is too big\n"); | |
1d2c9042 | 878 | goto release; |
d9d9ea01 | 879 | } |
1d2c9042 | 880 | |
53efec95 | 881 | if (!pcmcia_replace_cis(s, fw->data, fw->size)) |
1d2c9042 | 882 | ret = 0; |
d9d9ea01 | 883 | else { |
ac449d6e DB |
884 | dev_printk(KERN_ERR, &dev->dev, |
885 | "pcmcia: CIS override failed\n"); | |
d9d9ea01 DB |
886 | goto release; |
887 | } | |
888 | ||
1d2c9042 DB |
889 | |
890 | /* update information */ | |
891 | pcmcia_device_query(dev); | |
892 | ||
893 | /* does this cis override add or remove functions? */ | |
894 | old_funcs = s->functions; | |
895 | ||
896 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
897 | no_funcs = mfc.nfn; | |
898 | else | |
899 | no_funcs = 1; | |
900 | s->functions = no_funcs; | |
901 | ||
902 | if (old_funcs > no_funcs) | |
903 | pcmcia_card_remove(s, dev); | |
904 | else if (no_funcs > old_funcs) | |
905 | pcmcia_add_device_later(s, 1); | |
906 | } | |
907 | release: | |
908 | release_firmware(fw); | |
909 | ||
910 | return (ret); | |
911 | } | |
912 | ||
913 | #else /* !CONFIG_PCMCIA_LOAD_CIS */ | |
914 | ||
915 | static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) | |
916 | { | |
917 | return -ENODEV; | |
918 | } | |
919 | ||
920 | #endif | |
921 | ||
922 | ||
1ad275e3 DB |
923 | static inline int pcmcia_devmatch(struct pcmcia_device *dev, |
924 | struct pcmcia_device_id *did) | |
925 | { | |
926 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) { | |
927 | if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id)) | |
928 | return 0; | |
929 | } | |
930 | ||
931 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) { | |
932 | if ((!dev->has_card_id) || (dev->card_id != did->card_id)) | |
933 | return 0; | |
934 | } | |
935 | ||
936 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) { | |
937 | if (dev->func != did->function) | |
938 | return 0; | |
939 | } | |
940 | ||
941 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) { | |
942 | if (!dev->prod_id[0]) | |
943 | return 0; | |
944 | if (strcmp(did->prod_id[0], dev->prod_id[0])) | |
945 | return 0; | |
946 | } | |
947 | ||
948 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) { | |
949 | if (!dev->prod_id[1]) | |
950 | return 0; | |
951 | if (strcmp(did->prod_id[1], dev->prod_id[1])) | |
952 | return 0; | |
953 | } | |
954 | ||
955 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) { | |
956 | if (!dev->prod_id[2]) | |
957 | return 0; | |
958 | if (strcmp(did->prod_id[2], dev->prod_id[2])) | |
959 | return 0; | |
960 | } | |
961 | ||
962 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) { | |
963 | if (!dev->prod_id[3]) | |
964 | return 0; | |
965 | if (strcmp(did->prod_id[3], dev->prod_id[3])) | |
966 | return 0; | |
967 | } | |
968 | ||
969 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { | |
1ad275e3 DB |
970 | if (dev->device_no != did->device_no) |
971 | return 0; | |
972 | } | |
973 | ||
974 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { | |
975 | if ((!dev->has_func_id) || (dev->func_id != did->func_id)) | |
976 | return 0; | |
977 | ||
978 | /* if this is a pseudo-multi-function device, | |
979 | * we need explicit matches */ | |
980 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) | |
981 | return 0; | |
982 | if (dev->device_no) | |
983 | return 0; | |
984 | ||
985 | /* also, FUNC_ID matching needs to be activated by userspace | |
986 | * after it has re-checked that there is no possible module | |
987 | * with a prod_id/manf_id/card_id match. | |
988 | */ | |
ac449d6e DB |
989 | ds_dev_dbg(0, &dev->dev, |
990 | "skipping FUNC_ID match until userspace interaction\n"); | |
1ad275e3 DB |
991 | if (!dev->allow_func_id_match) |
992 | return 0; | |
993 | } | |
994 | ||
ea7b3882 | 995 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { |
ac449d6e | 996 | ds_dev_dbg(0, &dev->dev, "device needs a fake CIS\n"); |
daa9517d DB |
997 | if (!dev->socket->fake_cis) |
998 | pcmcia_load_firmware(dev, did->cisfile); | |
999 | ||
1000 | if (!dev->socket->fake_cis) | |
ea7b3882 | 1001 | return 0; |
ea7b3882 DB |
1002 | } |
1003 | ||
f602ff7e DB |
1004 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { |
1005 | int i; | |
1006 | for (i=0; i<4; i++) | |
1007 | if (dev->prod_id[i]) | |
1008 | return 0; | |
1009 | if (dev->has_manf_id || dev->has_card_id || dev->has_func_id) | |
1010 | return 0; | |
1011 | } | |
1012 | ||
1ad275e3 DB |
1013 | dev->dev.driver_data = (void *) did; |
1014 | ||
1015 | return 1; | |
1016 | } | |
1017 | ||
1018 | ||
1da177e4 LT |
1019 | static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) { |
1020 | struct pcmcia_device * p_dev = to_pcmcia_dev(dev); | |
1021 | struct pcmcia_driver * p_drv = to_pcmcia_drv(drv); | |
1ad275e3 | 1022 | struct pcmcia_device_id *did = p_drv->id_table; |
6179b556 BW |
1023 | struct pcmcia_dynid *dynid; |
1024 | ||
1025 | /* match dynamic devices first */ | |
1026 | spin_lock(&p_drv->dynids.lock); | |
1027 | list_for_each_entry(dynid, &p_drv->dynids.list, node) { | |
ac449d6e | 1028 | ds_dev_dbg(3, dev, "trying to match to %s\n", drv->name); |
6179b556 | 1029 | if (pcmcia_devmatch(p_dev, &dynid->id)) { |
ac449d6e | 1030 | ds_dev_dbg(0, dev, "matched to %s\n", drv->name); |
6179b556 BW |
1031 | spin_unlock(&p_drv->dynids.lock); |
1032 | return 1; | |
1033 | } | |
1034 | } | |
1035 | spin_unlock(&p_drv->dynids.lock); | |
1da177e4 | 1036 | |
0e0fad8f | 1037 | #ifdef CONFIG_PCMCIA_IOCTL |
1da177e4 | 1038 | /* matching by cardmgr */ |
d9d9ea01 | 1039 | if (p_dev->cardmgr == p_drv) { |
ac449d6e | 1040 | ds_dev_dbg(0, dev, "cardmgr matched to %s\n", drv->name); |
1da177e4 | 1041 | return 1; |
d9d9ea01 | 1042 | } |
0e0fad8f | 1043 | #endif |
1da177e4 | 1044 | |
1ad275e3 | 1045 | while (did && did->match_flags) { |
ac449d6e | 1046 | ds_dev_dbg(3, dev, "trying to match to %s\n", drv->name); |
d9d9ea01 | 1047 | if (pcmcia_devmatch(p_dev, did)) { |
ac449d6e | 1048 | ds_dev_dbg(0, dev, "matched to %s\n", drv->name); |
1ad275e3 | 1049 | return 1; |
d9d9ea01 | 1050 | } |
1ad275e3 DB |
1051 | did++; |
1052 | } | |
1053 | ||
1da177e4 LT |
1054 | return 0; |
1055 | } | |
1056 | ||
840c2ac5 DB |
1057 | #ifdef CONFIG_HOTPLUG |
1058 | ||
7eff2e7a | 1059 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
1060 | { |
1061 | struct pcmcia_device *p_dev; | |
7eff2e7a | 1062 | int i; |
840c2ac5 DB |
1063 | u32 hash[4] = { 0, 0, 0, 0}; |
1064 | ||
1065 | if (!dev) | |
1066 | return -ENODEV; | |
1067 | ||
1068 | p_dev = to_pcmcia_dev(dev); | |
1069 | ||
1070 | /* calculate hashes */ | |
1071 | for (i=0; i<4; i++) { | |
1072 | if (!p_dev->prod_id[i]) | |
1073 | continue; | |
1074 | hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); | |
1075 | } | |
1076 | ||
7eff2e7a | 1077 | if (add_uevent_var(env, "SOCKET_NO=%u", p_dev->socket->sock)) |
840c2ac5 DB |
1078 | return -ENOMEM; |
1079 | ||
7eff2e7a | 1080 | if (add_uevent_var(env, "DEVICE_NO=%02X", p_dev->device_no)) |
840c2ac5 DB |
1081 | return -ENOMEM; |
1082 | ||
7eff2e7a | 1083 | if (add_uevent_var(env, "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" |
312c004d KS |
1084 | "pa%08Xpb%08Xpc%08Xpd%08X", |
1085 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1086 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1087 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1088 | p_dev->func, | |
1089 | p_dev->device_no, | |
1090 | hash[0], | |
1091 | hash[1], | |
1092 | hash[2], | |
1093 | hash[3])) | |
840c2ac5 DB |
1094 | return -ENOMEM; |
1095 | ||
840c2ac5 DB |
1096 | return 0; |
1097 | } | |
1098 | ||
1099 | #else | |
1100 | ||
7eff2e7a | 1101 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
1102 | { |
1103 | return -ENODEV; | |
1104 | } | |
1105 | ||
1106 | #endif | |
1107 | ||
3f8df781 AS |
1108 | /************************ runtime PM support ***************************/ |
1109 | ||
1110 | static int pcmcia_dev_suspend(struct device *dev, pm_message_t state); | |
1111 | static int pcmcia_dev_resume(struct device *dev); | |
1112 | ||
1113 | static int runtime_suspend(struct device *dev) | |
1114 | { | |
1115 | int rc; | |
1116 | ||
1117 | down(&dev->sem); | |
1118 | rc = pcmcia_dev_suspend(dev, PMSG_SUSPEND); | |
1119 | up(&dev->sem); | |
3f8df781 AS |
1120 | return rc; |
1121 | } | |
1122 | ||
1123 | static void runtime_resume(struct device *dev) | |
1124 | { | |
1125 | int rc; | |
1126 | ||
1127 | down(&dev->sem); | |
1128 | rc = pcmcia_dev_resume(dev); | |
1129 | up(&dev->sem); | |
3f8df781 AS |
1130 | } |
1131 | ||
1da177e4 LT |
1132 | /************************ per-device sysfs output ***************************/ |
1133 | ||
1134 | #define pcmcia_device_attr(field, test, format) \ | |
e404e274 | 1135 | static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1136 | { \ |
1137 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
1138 | return p_dev->test ? sprintf (buf, format, p_dev->field) : -ENODEV; \ | |
1139 | } | |
1140 | ||
1141 | #define pcmcia_device_stringattr(name, field) \ | |
e404e274 | 1142 | static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1143 | { \ |
1144 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
1145 | return p_dev->field ? sprintf (buf, "%s\n", p_dev->field) : -ENODEV; \ | |
1146 | } | |
1147 | ||
1148 | pcmcia_device_attr(func, socket, "0x%02x\n"); | |
1149 | pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); | |
1150 | pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); | |
1151 | pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); | |
1152 | pcmcia_device_stringattr(prod_id1, prod_id[0]); | |
1153 | pcmcia_device_stringattr(prod_id2, prod_id[1]); | |
1154 | pcmcia_device_stringattr(prod_id3, prod_id[2]); | |
1155 | pcmcia_device_stringattr(prod_id4, prod_id[3]); | |
1156 | ||
db1019ca DB |
1157 | |
1158 | static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf) | |
1159 | { | |
1160 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1161 | ||
f6fbe01a | 1162 | if (p_dev->suspended) |
db1019ca DB |
1163 | return sprintf(buf, "off\n"); |
1164 | else | |
1165 | return sprintf(buf, "on\n"); | |
1166 | } | |
1167 | ||
1168 | static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr, | |
1169 | const char *buf, size_t count) | |
1170 | { | |
1171 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1172 | int ret = 0; | |
1173 | ||
1174 | if (!count) | |
1175 | return -EINVAL; | |
1176 | ||
f6fbe01a | 1177 | if ((!p_dev->suspended) && !strncmp(buf, "off", 3)) |
3f8df781 | 1178 | ret = runtime_suspend(dev); |
f6fbe01a | 1179 | else if (p_dev->suspended && !strncmp(buf, "on", 2)) |
3f8df781 | 1180 | runtime_resume(dev); |
db1019ca DB |
1181 | |
1182 | return ret ? ret : count; | |
1183 | } | |
1184 | ||
1185 | ||
3704511b | 1186 | static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) |
3248ff43 DB |
1187 | { |
1188 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1189 | int i; | |
1190 | u32 hash[4] = { 0, 0, 0, 0}; | |
1191 | ||
1192 | /* calculate hashes */ | |
1193 | for (i=0; i<4; i++) { | |
1194 | if (!p_dev->prod_id[i]) | |
1195 | continue; | |
1196 | hash[i] = crc32(0,p_dev->prod_id[i],strlen(p_dev->prod_id[i])); | |
1197 | } | |
1198 | return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
1199 | "pa%08Xpb%08Xpc%08Xpd%08X\n", | |
1200 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1201 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1202 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1203 | p_dev->func, p_dev->device_no, | |
1204 | hash[0], hash[1], hash[2], hash[3]); | |
1205 | } | |
a5b55778 | 1206 | |
3248ff43 DB |
1207 | static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, |
1208 | struct device_attribute *attr, const char *buf, size_t count) | |
a5b55778 DB |
1209 | { |
1210 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
f901b8c4 | 1211 | int ret; |
db1019ca DB |
1212 | |
1213 | if (!count) | |
1214 | return -EINVAL; | |
a5b55778 | 1215 | |
7fe908dd | 1216 | mutex_lock(&p_dev->socket->skt_mutex); |
a5b55778 | 1217 | p_dev->allow_func_id_match = 1; |
7fe908dd | 1218 | mutex_unlock(&p_dev->socket->skt_mutex); |
a5b55778 | 1219 | |
f901b8c4 DB |
1220 | ret = bus_rescan_devices(&pcmcia_bus_type); |
1221 | if (ret) | |
1222 | printk(KERN_INFO "pcmcia: bus_rescan_devices failed after " | |
1223 | "allowing func_id matches\n"); | |
a5b55778 DB |
1224 | |
1225 | return count; | |
1226 | } | |
1227 | ||
1da177e4 LT |
1228 | static struct device_attribute pcmcia_dev_attrs[] = { |
1229 | __ATTR(function, 0444, func_show, NULL), | |
db1019ca | 1230 | __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state), |
1da177e4 LT |
1231 | __ATTR_RO(func_id), |
1232 | __ATTR_RO(manf_id), | |
1233 | __ATTR_RO(card_id), | |
1234 | __ATTR_RO(prod_id1), | |
1235 | __ATTR_RO(prod_id2), | |
1236 | __ATTR_RO(prod_id3), | |
1237 | __ATTR_RO(prod_id4), | |
3248ff43 | 1238 | __ATTR_RO(modalias), |
a5b55778 | 1239 | __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), |
1da177e4 LT |
1240 | __ATTR_NULL, |
1241 | }; | |
1242 | ||
8e9e793d DB |
1243 | /* PM support, also needed for reset */ |
1244 | ||
1245 | static int pcmcia_dev_suspend(struct device * dev, pm_message_t state) | |
1246 | { | |
1247 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1248 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1249 | int ret = 0; |
8e9e793d | 1250 | |
d6b4fa6d DB |
1251 | if (p_dev->suspended) |
1252 | return 0; | |
1253 | ||
ac449d6e | 1254 | ds_dev_dbg(2, dev, "suspending\n"); |
d9d9ea01 | 1255 | |
8e9e793d DB |
1256 | if (dev->driver) |
1257 | p_drv = to_pcmcia_drv(dev->driver); | |
1258 | ||
e2d40963 DB |
1259 | if (!p_drv) |
1260 | goto out; | |
1261 | ||
1262 | if (p_drv->suspend) { | |
8661bb5b | 1263 | ret = p_drv->suspend(p_dev); |
d9d9ea01 | 1264 | if (ret) { |
ac449d6e DB |
1265 | dev_printk(KERN_ERR, dev, |
1266 | "pcmcia: device %s (driver %s) did " | |
1267 | "not want to go to sleep (%d)\n", | |
1268 | p_dev->devname, p_drv->drv.name, ret); | |
f6fbe01a | 1269 | goto out; |
d9d9ea01 | 1270 | } |
8661bb5b | 1271 | } |
8e9e793d | 1272 | |
d9d9ea01 | 1273 | if (p_dev->device_no == p_dev->func) { |
ac449d6e | 1274 | ds_dev_dbg(2, dev, "releasing configuration\n"); |
e2d40963 | 1275 | pcmcia_release_configuration(p_dev); |
d9d9ea01 | 1276 | } |
e2d40963 | 1277 | |
f6fbe01a DB |
1278 | out: |
1279 | if (!ret) | |
1280 | p_dev->suspended = 1; | |
1281 | return ret; | |
8e9e793d DB |
1282 | } |
1283 | ||
1284 | ||
1285 | static int pcmcia_dev_resume(struct device * dev) | |
1286 | { | |
1287 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1288 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1289 | int ret = 0; |
8e9e793d | 1290 | |
d6b4fa6d DB |
1291 | if (!p_dev->suspended) |
1292 | return 0; | |
1293 | ||
ac449d6e | 1294 | ds_dev_dbg(2, dev, "resuming\n"); |
d9d9ea01 | 1295 | |
8e9e793d DB |
1296 | if (dev->driver) |
1297 | p_drv = to_pcmcia_drv(dev->driver); | |
1298 | ||
e2d40963 DB |
1299 | if (!p_drv) |
1300 | goto out; | |
1301 | ||
1302 | if (p_dev->device_no == p_dev->func) { | |
ac449d6e | 1303 | ds_dev_dbg(2, dev, "requesting configuration\n"); |
e2d40963 DB |
1304 | ret = pcmcia_request_configuration(p_dev, &p_dev->conf); |
1305 | if (ret) | |
1306 | goto out; | |
8661bb5b | 1307 | } |
8e9e793d | 1308 | |
e2d40963 DB |
1309 | if (p_drv->resume) |
1310 | ret = p_drv->resume(p_dev); | |
1311 | ||
f6fbe01a DB |
1312 | out: |
1313 | if (!ret) | |
1314 | p_dev->suspended = 0; | |
1315 | return ret; | |
8e9e793d DB |
1316 | } |
1317 | ||
1318 | ||
1319 | static int pcmcia_bus_suspend_callback(struct device *dev, void * _data) | |
1320 | { | |
1321 | struct pcmcia_socket *skt = _data; | |
1322 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1323 | ||
3f8df781 | 1324 | if (p_dev->socket != skt || p_dev->suspended) |
8e9e793d DB |
1325 | return 0; |
1326 | ||
3f8df781 | 1327 | return runtime_suspend(dev); |
8e9e793d DB |
1328 | } |
1329 | ||
1330 | static int pcmcia_bus_resume_callback(struct device *dev, void * _data) | |
1331 | { | |
1332 | struct pcmcia_socket *skt = _data; | |
1333 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1334 | ||
3f8df781 | 1335 | if (p_dev->socket != skt || !p_dev->suspended) |
8e9e793d DB |
1336 | return 0; |
1337 | ||
3f8df781 | 1338 | runtime_resume(dev); |
8e9e793d DB |
1339 | |
1340 | return 0; | |
1341 | } | |
1342 | ||
1343 | static int pcmcia_bus_resume(struct pcmcia_socket *skt) | |
1344 | { | |
ac449d6e | 1345 | ds_dev_dbg(2, &skt->dev, "resuming socket %d\n", skt->sock); |
8e9e793d DB |
1346 | bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback); |
1347 | return 0; | |
1348 | } | |
1349 | ||
1350 | static int pcmcia_bus_suspend(struct pcmcia_socket *skt) | |
1351 | { | |
ac449d6e | 1352 | ds_dev_dbg(2, &skt->dev, "suspending socket %d\n", skt->sock); |
8e9e793d DB |
1353 | if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt, |
1354 | pcmcia_bus_suspend_callback)) { | |
1355 | pcmcia_bus_resume(skt); | |
1356 | return -EIO; | |
1357 | } | |
1358 | return 0; | |
1359 | } | |
1360 | ||
1da177e4 | 1361 | |
1da177e4 LT |
1362 | /*====================================================================== |
1363 | ||
1364 | The card status event handler. | |
1365 | ||
1366 | ======================================================================*/ | |
1367 | ||
1da177e4 LT |
1368 | /* Normally, the event is passed to individual drivers after |
1369 | * informing userspace. Only for CS_EVENT_CARD_REMOVAL this | |
1370 | * is inversed to maintain historic compatibility. | |
1371 | */ | |
1372 | ||
1373 | static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) | |
1374 | { | |
dc109497 | 1375 | struct pcmcia_socket *s = pcmcia_get_socket(skt); |
1da177e4 | 1376 | |
1617406a | 1377 | if (!s) { |
ac449d6e DB |
1378 | dev_printk(KERN_ERR, &skt->dev, |
1379 | "PCMCIA obtaining reference to socket " \ | |
1380 | "failed, event 0x%x lost!\n", event); | |
1617406a FM |
1381 | return -ENODEV; |
1382 | } | |
1383 | ||
ac449d6e DB |
1384 | ds_dev_dbg(1, &skt->dev, "ds_event(0x%06x, %d, 0x%p)\n", |
1385 | event, priority, skt); | |
1da177e4 | 1386 | |
f8cfa618 | 1387 | switch (event) { |
1da177e4 | 1388 | case CS_EVENT_CARD_REMOVAL: |
b5e43913 | 1389 | s->pcmcia_state.present = 0; |
d6ff5a85 | 1390 | pcmcia_card_remove(skt, NULL); |
dc109497 | 1391 | handle_event(skt, event); |
1da177e4 | 1392 | break; |
f8cfa618 | 1393 | |
1da177e4 | 1394 | case CS_EVENT_CARD_INSERTION: |
b5e43913 | 1395 | s->pcmcia_state.present = 1; |
1da177e4 | 1396 | pcmcia_card_add(skt); |
dc109497 | 1397 | handle_event(skt, event); |
1da177e4 LT |
1398 | break; |
1399 | ||
1400 | case CS_EVENT_EJECTION_REQUEST: | |
1da177e4 LT |
1401 | break; |
1402 | ||
8e9e793d DB |
1403 | case CS_EVENT_PM_SUSPEND: |
1404 | case CS_EVENT_PM_RESUME: | |
1405 | case CS_EVENT_RESET_PHYSICAL: | |
1406 | case CS_EVENT_CARD_RESET: | |
1da177e4 | 1407 | default: |
dc109497 | 1408 | handle_event(skt, event); |
1da177e4 LT |
1409 | break; |
1410 | } | |
1411 | ||
dc109497 DB |
1412 | pcmcia_put_socket(s); |
1413 | ||
1da177e4 LT |
1414 | return 0; |
1415 | } /* ds_event */ | |
1416 | ||
1417 | ||
9940ec36 DB |
1418 | struct pcmcia_device * pcmcia_dev_present(struct pcmcia_device *_p_dev) |
1419 | { | |
1420 | struct pcmcia_device *p_dev; | |
1421 | struct pcmcia_device *ret = NULL; | |
1422 | ||
1423 | p_dev = pcmcia_get_dev(_p_dev); | |
1424 | if (!p_dev) | |
1425 | return NULL; | |
1426 | ||
1427 | if (!p_dev->socket->pcmcia_state.present) | |
1428 | goto out; | |
1429 | ||
1430 | if (p_dev->_removed) | |
1431 | goto out; | |
1432 | ||
1433 | if (p_dev->suspended) | |
1434 | goto out; | |
1435 | ||
1436 | ret = p_dev; | |
1437 | out: | |
1438 | pcmcia_put_dev(p_dev); | |
1439 | return ret; | |
1440 | } | |
1441 | EXPORT_SYMBOL(pcmcia_dev_present); | |
1442 | ||
1443 | ||
90c6cdd1 DB |
1444 | static struct pcmcia_callback pcmcia_bus_callback = { |
1445 | .owner = THIS_MODULE, | |
1446 | .event = ds_event, | |
1447 | .requery = pcmcia_bus_rescan, | |
8e9e793d DB |
1448 | .suspend = pcmcia_bus_suspend, |
1449 | .resume = pcmcia_bus_resume, | |
90c6cdd1 DB |
1450 | }; |
1451 | ||
87373318 | 1452 | static int __devinit pcmcia_bus_add_socket(struct device *dev, |
d8539d81 | 1453 | struct class_interface *class_intf) |
1da177e4 | 1454 | { |
87373318 | 1455 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 LT |
1456 | int ret; |
1457 | ||
dc109497 DB |
1458 | socket = pcmcia_get_socket(socket); |
1459 | if (!socket) { | |
ac449d6e DB |
1460 | dev_printk(KERN_ERR, dev, |
1461 | "PCMCIA obtaining reference to socket failed\n"); | |
1da177e4 LT |
1462 | return -ENODEV; |
1463 | } | |
1464 | ||
1da177e4 LT |
1465 | /* |
1466 | * Ugly. But we want to wait for the socket threads to have started up. | |
1467 | * We really should let the drivers themselves drive some of this.. | |
1468 | */ | |
1469 | msleep(250); | |
1470 | ||
e7a480d2 | 1471 | #ifdef CONFIG_PCMCIA_IOCTL |
dc109497 | 1472 | init_waitqueue_head(&socket->queue); |
e7a480d2 | 1473 | #endif |
dc109497 | 1474 | INIT_LIST_HEAD(&socket->devices_list); |
4796b71f | 1475 | INIT_WORK(&socket->device_add, pcmcia_delayed_add_device); |
dc109497 DB |
1476 | memset(&socket->pcmcia_state, 0, sizeof(u8)); |
1477 | socket->device_count = 0; | |
1da177e4 | 1478 | |
90c6cdd1 | 1479 | ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback); |
1da177e4 | 1480 | if (ret) { |
ac449d6e | 1481 | dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n"); |
dc109497 | 1482 | pcmcia_put_socket(socket); |
1da177e4 LT |
1483 | return (ret); |
1484 | } | |
1485 | ||
1486 | return 0; | |
1487 | } | |
1488 | ||
87373318 | 1489 | static void pcmcia_bus_remove_socket(struct device *dev, |
d8539d81 | 1490 | struct class_interface *class_intf) |
1da177e4 | 1491 | { |
87373318 | 1492 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 | 1493 | |
dc109497 | 1494 | if (!socket) |
1da177e4 LT |
1495 | return; |
1496 | ||
dc109497 | 1497 | socket->pcmcia_state.dead = 1; |
1da177e4 LT |
1498 | pccard_register_pcmcia(socket, NULL); |
1499 | ||
dfbc9e9d | 1500 | /* unregister any unbound devices */ |
8e4d9dcb | 1501 | mutex_lock(&socket->skt_mutex); |
dfbc9e9d | 1502 | pcmcia_card_remove(socket, NULL); |
8e4d9dcb | 1503 | mutex_unlock(&socket->skt_mutex); |
dfbc9e9d | 1504 | |
dc109497 | 1505 | pcmcia_put_socket(socket); |
1da177e4 LT |
1506 | |
1507 | return; | |
1508 | } | |
1509 | ||
1510 | ||
1511 | /* the pcmcia_bus_interface is used to handle pcmcia socket devices */ | |
ed49f5d0 | 1512 | static struct class_interface pcmcia_bus_interface __refdata = { |
1da177e4 | 1513 | .class = &pcmcia_socket_class, |
87373318 GKH |
1514 | .add_dev = &pcmcia_bus_add_socket, |
1515 | .remove_dev = &pcmcia_bus_remove_socket, | |
1da177e4 LT |
1516 | }; |
1517 | ||
1518 | ||
e7a480d2 | 1519 | struct bus_type pcmcia_bus_type = { |
1da177e4 | 1520 | .name = "pcmcia", |
312c004d | 1521 | .uevent = pcmcia_bus_uevent, |
1da177e4 LT |
1522 | .match = pcmcia_bus_match, |
1523 | .dev_attrs = pcmcia_dev_attrs, | |
1d0baa3a RK |
1524 | .probe = pcmcia_device_probe, |
1525 | .remove = pcmcia_device_remove, | |
8e9e793d DB |
1526 | .suspend = pcmcia_dev_suspend, |
1527 | .resume = pcmcia_dev_resume, | |
1da177e4 | 1528 | }; |
1da177e4 LT |
1529 | |
1530 | ||
1531 | static int __init init_pcmcia_bus(void) | |
1532 | { | |
ace7d477 RD |
1533 | int ret; |
1534 | ||
1da177e4 LT |
1535 | spin_lock_init(&pcmcia_dev_list_lock); |
1536 | ||
ace7d477 RD |
1537 | ret = bus_register(&pcmcia_bus_type); |
1538 | if (ret < 0) { | |
1539 | printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret); | |
1540 | return ret; | |
1541 | } | |
1542 | ret = class_interface_register(&pcmcia_bus_interface); | |
1543 | if (ret < 0) { | |
1544 | printk(KERN_WARNING | |
1545 | "pcmcia: class_interface_register error: %d\n", ret); | |
1546 | bus_unregister(&pcmcia_bus_type); | |
1547 | return ret; | |
1548 | } | |
1da177e4 | 1549 | |
e7a480d2 | 1550 | pcmcia_setup_ioctl(); |
1da177e4 LT |
1551 | |
1552 | return 0; | |
1553 | } | |
1554 | fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that | |
1555 | * pcmcia_socket_class is already registered */ | |
1556 | ||
1557 | ||
1558 | static void __exit exit_pcmcia_bus(void) | |
1559 | { | |
e7a480d2 | 1560 | pcmcia_cleanup_ioctl(); |
1da177e4 | 1561 | |
e7a480d2 | 1562 | class_interface_unregister(&pcmcia_bus_interface); |
1da177e4 LT |
1563 | |
1564 | bus_unregister(&pcmcia_bus_type); | |
1565 | } | |
1566 | module_exit(exit_pcmcia_bus); | |
1567 | ||
1568 | ||
1da177e4 | 1569 | MODULE_ALIAS("ds"); |