[PATCH] pcmcia: remove prod_id indirection
[deliverable/linux.git] / drivers / pcmcia / ds.c
CommitLineData
1da177e4
LT
1/*
2 * ds.c -- 16-bit PCMCIA core support
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 *
8 * The initial developer of the original code is David A. Hinds
9 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
10 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
11 *
12 * (C) 1999 David A. Hinds
8661bb5b 13 * (C) 2003 - 2006 Dominik Brodowski
1da177e4
LT
14 */
15
3b659fb8 16#include <linux/kernel.h>
1da177e4 17#include <linux/module.h>
1da177e4 18#include <linux/init.h>
1da177e4 19#include <linux/errno.h>
1da177e4
LT
20#include <linux/list.h>
21#include <linux/delay.h>
1da177e4 22#include <linux/workqueue.h>
840c2ac5 23#include <linux/crc32.h>
daa9517d 24#include <linux/firmware.h>
360b65b9 25#include <linux/kref.h>
1da177e4 26
1da177e4 27#define IN_CARD_SERVICES
1da177e4
LT
28#include <pcmcia/cs_types.h>
29#include <pcmcia/cs.h>
1da177e4
LT
30#include <pcmcia/cistpl.h>
31#include <pcmcia/ds.h>
32#include <pcmcia/ss.h>
33
34#include "cs_internal.h"
e7a480d2 35#include "ds_internal.h"
1da177e4
LT
36
37/*====================================================================*/
38
39/* Module parameters */
40
41MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
42MODULE_DESCRIPTION("PCMCIA Driver Services");
43MODULE_LICENSE("GPL");
44
45#ifdef DEBUG
e7a480d2 46int ds_pc_debug;
1da177e4
LT
47
48module_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 58spinlock_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
66typedef struct lookup_t {
67 int key;
68 char *msg;
69} lookup_t;
70
71static 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
106static 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 159static 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 192void 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}
197EXPORT_SYMBOL(cs_error);
198
23a83bfe
DB
199
200static void pcmcia_check_driver(struct pcmcia_driver *p_drv)
201{
202 struct pcmcia_device_id *did = p_drv->id_table;
203 unsigned int i;
204 u32 hash;
205
f8cfa618 206 if (!p_drv->probe || !p_drv->remove)
ba5bb6b5
PR
207 printk(KERN_DEBUG "pcmcia: %s lacks a requisite callback "
208 "function\n", p_drv->drv.name);
1e212f36 209
23a83bfe
DB
210 while (did && did->match_flags) {
211 for (i=0; i<4; i++) {
212 if (!did->prod_id[i])
213 continue;
214
215 hash = crc32(0, did->prod_id[i], strlen(did->prod_id[i]));
216 if (hash == did->prod_id_hash[i])
217 continue;
218
219 printk(KERN_DEBUG "pcmcia: %s: invalid hash for "
220 "product string \"%s\": is 0x%x, should "
221 "be 0x%x\n", p_drv->drv.name, did->prod_id[i],
222 did->prod_id_hash[i], hash);
5085cb26
DB
223 printk(KERN_DEBUG "pcmcia: see "
224 "Documentation/pcmcia/devicetable.txt for "
225 "details\n");
23a83bfe
DB
226 }
227 did++;
228 }
229
230 return;
231}
232
daa9517d 233
1da177e4
LT
234/*======================================================================*/
235
1da177e4 236
1da177e4
LT
237/**
238 * pcmcia_register_driver - register a PCMCIA driver with the bus core
239 *
240 * Registers a PCMCIA driver with the PCMCIA bus core.
241 */
1da177e4
LT
242int pcmcia_register_driver(struct pcmcia_driver *driver)
243{
244 if (!driver)
245 return -EINVAL;
246
23a83bfe
DB
247 pcmcia_check_driver(driver);
248
1da177e4
LT
249 /* initialize common fields */
250 driver->drv.bus = &pcmcia_bus_type;
251 driver->drv.owner = driver->owner;
1da177e4
LT
252
253 return driver_register(&driver->drv);
254}
255EXPORT_SYMBOL(pcmcia_register_driver);
256
257/**
258 * pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core
259 */
260void pcmcia_unregister_driver(struct pcmcia_driver *driver)
261{
262 driver_unregister(&driver->drv);
263}
264EXPORT_SYMBOL(pcmcia_unregister_driver);
265
1da177e4
LT
266
267/* pcmcia_device handling */
268
e7a480d2 269struct pcmcia_device * pcmcia_get_dev(struct pcmcia_device *p_dev)
1da177e4
LT
270{
271 struct device *tmp_dev;
272 tmp_dev = get_device(&p_dev->dev);
273 if (!tmp_dev)
274 return NULL;
275 return to_pcmcia_dev(tmp_dev);
276}
277
e7a480d2 278void pcmcia_put_dev(struct pcmcia_device *p_dev)
1da177e4
LT
279{
280 if (p_dev)
281 put_device(&p_dev->dev);
282}
283
360b65b9
DB
284static void pcmcia_release_function(struct kref *ref)
285{
286 struct config_t *c = container_of(ref, struct config_t, ref);
287 kfree(c);
288}
289
1da177e4
LT
290static void pcmcia_release_dev(struct device *dev)
291{
292 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
293 ds_dbg(1, "releasing dev %p\n", p_dev);
dc109497 294 pcmcia_put_socket(p_dev->socket);
bd65a685 295 kfree(p_dev->devname);
360b65b9 296 kref_put(&p_dev->function_config->ref, pcmcia_release_function);
1da177e4
LT
297 kfree(p_dev);
298}
299
1d2c9042 300static void pcmcia_add_device_later(struct pcmcia_socket *s, int mfc)
82d56e6d
DB
301{
302 if (!s->pcmcia_state.device_add_pending) {
303 s->pcmcia_state.device_add_pending = 1;
1d2c9042 304 s->pcmcia_state.mfc_pfc = mfc;
82d56e6d
DB
305 schedule_work(&s->device_add);
306 }
307 return;
308}
1da177e4
LT
309
310static int pcmcia_device_probe(struct device * dev)
311{
312 struct pcmcia_device *p_dev;
313 struct pcmcia_driver *p_drv;
82d56e6d 314 struct pcmcia_device_id *did;
f8cfa618 315 struct pcmcia_socket *s;
1da177e4
LT
316 int ret = 0;
317
318 dev = get_device(dev);
319 if (!dev)
320 return -ENODEV;
321
322 p_dev = to_pcmcia_dev(dev);
323 p_drv = to_pcmcia_drv(dev->driver);
f8cfa618 324 s = p_dev->socket;
1da177e4 325
360b65b9
DB
326 if ((!p_drv->probe) || (!p_dev->function_config) ||
327 (!try_module_get(p_drv->owner))) {
1da177e4
LT
328 ret = -EINVAL;
329 goto put_dev;
330 }
331
f8cfa618 332 ret = p_drv->probe(p_dev);
82d56e6d
DB
333 if (ret)
334 goto put_module;
335
336 /* handle pseudo multifunction devices:
337 * there are at most two pseudo multifunction devices.
338 * if we're matching against the first, schedule a
339 * call which will then check whether there are two
340 * pseudo devices, and if not, add the second one.
341 */
80a55e92 342 did = p_dev->dev.driver_data;
4ceadbf5 343 if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) &&
82d56e6d 344 (p_dev->socket->device_count == 1) && (p_dev->device_no == 0))
1d2c9042 345 pcmcia_add_device_later(p_dev->socket, 0);
f8cfa618
DB
346
347 put_module:
1da177e4
LT
348 if (ret)
349 module_put(p_drv->owner);
350 put_dev:
f8cfa618 351 if (ret)
1da177e4
LT
352 put_device(dev);
353 return (ret);
354}
355
356
d6ff5a85
DB
357/*
358 * Removes a PCMCIA card from the device tree and socket list.
359 */
360static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *leftover)
361{
362 struct pcmcia_device *p_dev;
363 struct pcmcia_device *tmp;
364 unsigned long flags;
365
366 ds_dbg(2, "unbind_request(%d)\n", s->sock);
367
368
369 if (!leftover)
370 s->device_count = 0;
371 else
372 s->device_count = 1;
373
374 /* unregister all pcmcia_devices registered with this socket, except leftover */
375 list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) {
376 if (p_dev == leftover)
377 continue;
378
379 spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
380 list_del(&p_dev->socket_device_list);
381 p_dev->_removed=1;
382 spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
383
384 device_unregister(&p_dev->dev);
385 }
386
387 return;
388}
389
1da177e4
LT
390static int pcmcia_device_remove(struct device * dev)
391{
392 struct pcmcia_device *p_dev;
393 struct pcmcia_driver *p_drv;
d6ff5a85 394 struct pcmcia_device_id *did;
cc3b4866 395 int i;
1da177e4 396
1da177e4
LT
397 p_dev = to_pcmcia_dev(dev);
398 p_drv = to_pcmcia_drv(dev->driver);
d6ff5a85
DB
399
400 /* If we're removing the primary module driving a
401 * pseudo multi-function card, we need to unbind
402 * all devices
403 */
80a55e92 404 did = p_dev->dev.driver_data;
b2f51a1c 405 if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) &&
d6ff5a85
DB
406 (p_dev->socket->device_count != 0) &&
407 (p_dev->device_no == 0))
408 pcmcia_card_remove(p_dev->socket, p_dev);
409
410 /* detach the "instance" */
f3990715
DB
411 if (!p_drv)
412 return 0;
1da177e4 413
f3990715 414 if (p_drv->remove)
cc3b4866
DB
415 p_drv->remove(p_dev);
416
a0aab143
DB
417 p_dev->dev_node = NULL;
418
f3990715 419 /* check for proper unloading */
e2d40963 420 if (p_dev->_irq || p_dev->_io || p_dev->_locked)
f3990715
DB
421 printk(KERN_INFO "pcmcia: driver %s did not release config properly\n",
422 p_drv->drv.name);
cc3b4866 423
f3990715 424 for (i = 0; i < MAX_WIN; i++)
e2d40963 425 if (p_dev->_win & CLIENT_WIN_REQ(i))
f3990715
DB
426 printk(KERN_INFO "pcmcia: driver %s did not release windows properly\n",
427 p_drv->drv.name);
cc3b4866 428
f3990715
DB
429 /* references from pcmcia_probe_device */
430 pcmcia_put_dev(p_dev);
431 module_put(p_drv->owner);
1da177e4
LT
432
433 return 0;
434}
435
436
1da177e4
LT
437/*
438 * pcmcia_device_query -- determine information about a pcmcia device
439 */
440static int pcmcia_device_query(struct pcmcia_device *p_dev)
441{
442 cistpl_manfid_t manf_id;
443 cistpl_funcid_t func_id;
76fa82fb 444 cistpl_vers_1_t *vers1;
1da177e4
LT
445 unsigned int i;
446
76fa82fb
IM
447 vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL);
448 if (!vers1)
449 return -ENOMEM;
450
1da177e4
LT
451 if (!pccard_read_tuple(p_dev->socket, p_dev->func,
452 CISTPL_MANFID, &manf_id)) {
453 p_dev->manf_id = manf_id.manf;
454 p_dev->card_id = manf_id.card;
455 p_dev->has_manf_id = 1;
456 p_dev->has_card_id = 1;
457 }
458
459 if (!pccard_read_tuple(p_dev->socket, p_dev->func,
460 CISTPL_FUNCID, &func_id)) {
461 p_dev->func_id = func_id.func;
462 p_dev->has_func_id = 1;
463 } else {
464 /* rule of thumb: cards with no FUNCID, but with
465 * common memory device geometry information, are
466 * probably memory cards (from pcmcia-cs) */
76fa82fb
IM
467 cistpl_device_geo_t *devgeo;
468
469 devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL);
470 if (!devgeo) {
471 kfree(vers1);
472 return -ENOMEM;
473 }
1da177e4 474 if (!pccard_read_tuple(p_dev->socket, p_dev->func,
76fa82fb 475 CISTPL_DEVICE_GEO, devgeo)) {
1da177e4
LT
476 ds_dbg(0, "mem device geometry probably means "
477 "FUNCID_MEMORY\n");
478 p_dev->func_id = CISTPL_FUNCID_MEMORY;
479 p_dev->has_func_id = 1;
480 }
76fa82fb 481 kfree(devgeo);
1da177e4
LT
482 }
483
484 if (!pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_VERS_1,
76fa82fb
IM
485 vers1)) {
486 for (i=0; i < vers1->ns; i++) {
1da177e4
LT
487 char *tmp;
488 unsigned int length;
489
76fa82fb 490 tmp = vers1->str + vers1->ofs[i];
1da177e4
LT
491
492 length = strlen(tmp) + 1;
6e3d4f25 493 if ((length < 2) || (length > 255))
1da177e4
LT
494 continue;
495
496 p_dev->prod_id[i] = kmalloc(sizeof(char) * length,
497 GFP_KERNEL);
498 if (!p_dev->prod_id[i])
499 continue;
500
501 p_dev->prod_id[i] = strncpy(p_dev->prod_id[i],
502 tmp, length);
503 }
504 }
505
76fa82fb 506 kfree(vers1);
1da177e4
LT
507 return 0;
508}
509
510
511/* device_add_lock is needed to avoid double registration by cardmgr and kernel.
512 * Serializes pcmcia_device_add; will most likely be removed in future.
513 *
514 * While it has the caveat that adding new PCMCIA devices inside(!) device_register()
515 * won't work, this doesn't matter much at the moment: the driver core doesn't
516 * support it either.
517 */
7fe908dd 518static DEFINE_MUTEX(device_add_lock);
1da177e4 519
dc109497 520struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function)
1da177e4 521{
360b65b9 522 struct pcmcia_device *p_dev, *tmp_dev;
1da177e4 523 unsigned long flags;
bd65a685 524 int bus_id_len;
1da177e4 525
dc109497 526 s = pcmcia_get_socket(s);
1da177e4
LT
527 if (!s)
528 return NULL;
529
7fe908dd 530 mutex_lock(&device_add_lock);
1da177e4 531
6cf5be51
DB
532 /* max of 4 devices per card */
533 if (s->device_count == 4)
1ad275e3
DB
534 goto err_put;
535
8084b372 536 p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL);
1da177e4
LT
537 if (!p_dev)
538 goto err_put;
1da177e4 539
dc109497 540 p_dev->socket = s;
1da177e4
LT
541 p_dev->device_no = (s->device_count++);
542 p_dev->func = function;
543
544 p_dev->dev.bus = &pcmcia_bus_type;
dc109497 545 p_dev->dev.parent = s->dev.dev;
1da177e4 546 p_dev->dev.release = pcmcia_release_dev;
bd65a685
BG
547 bus_id_len = sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no);
548
549 p_dev->devname = kmalloc(6 + bus_id_len + 1, GFP_KERNEL);
550 if (!p_dev->devname)
551 goto err_free;
552 sprintf (p_dev->devname, "pcmcia%s", p_dev->dev.bus_id);
1da177e4
LT
553
554 /* compat */
1da177e4 555 spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
360b65b9
DB
556
557 /*
558 * p_dev->function_config must be the same for all card functions.
559 * Note that this is serialized by the device_add_lock, so that
560 * only one such struct will be created.
561 */
562 list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list)
563 if (p_dev->func == tmp_dev->func) {
564 p_dev->function_config = tmp_dev->function_config;
565 kref_get(&p_dev->function_config->ref);
566 }
567
568 /* Add to the list in pcmcia_bus_socket */
6171b88b 569 list_add(&p_dev->socket_device_list, &s->devices_list);
360b65b9 570
1da177e4
LT
571 spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
572
360b65b9
DB
573 if (!p_dev->function_config) {
574 p_dev->function_config = kzalloc(sizeof(struct config_t),
575 GFP_KERNEL);
576 if (!p_dev->function_config)
577 goto err_unreg;
578 kref_init(&p_dev->function_config->ref);
579 }
580
807277cb
DB
581 printk(KERN_NOTICE "pcmcia: registering new device %s\n",
582 p_dev->devname);
583
1ad275e3
DB
584 pcmcia_device_query(p_dev);
585
360b65b9
DB
586 if (device_register(&p_dev->dev))
587 goto err_unreg;
1da177e4 588
7fe908dd 589 mutex_unlock(&device_add_lock);
1da177e4
LT
590
591 return p_dev;
592
360b65b9
DB
593 err_unreg:
594 spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
595 list_del(&p_dev->socket_device_list);
596 spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
597
1da177e4 598 err_free:
bd65a685 599 kfree(p_dev->devname);
1da177e4
LT
600 kfree(p_dev);
601 s->device_count--;
602 err_put:
7fe908dd 603 mutex_unlock(&device_add_lock);
dc109497 604 pcmcia_put_socket(s);
1da177e4
LT
605
606 return NULL;
607}
608
609
610static int pcmcia_card_add(struct pcmcia_socket *s)
611{
612 cisinfo_t cisinfo;
613 cistpl_longlink_mfc_t mfc;
614 unsigned int no_funcs, i;
615 int ret = 0;
616
617 if (!(s->resource_setup_done))
618 return -EAGAIN; /* try again, but later... */
619
de75914e
DB
620 if (pcmcia_validate_mem(s))
621 return -EAGAIN; /* try again, but later... */
622
1da177e4
LT
623 ret = pccard_validate_cis(s, BIND_FN_ALL, &cisinfo);
624 if (ret || !cisinfo.Chains) {
625 ds_dbg(0, "invalid CIS or invalid resources\n");
626 return -ENODEV;
627 }
628
629 if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc))
630 no_funcs = mfc.nfn;
631 else
632 no_funcs = 1;
1d2c9042 633 s->functions = no_funcs;
1da177e4 634
1da177e4 635 for (i=0; i < no_funcs; i++)
dc109497 636 pcmcia_device_add(s, i);
1da177e4
LT
637
638 return (ret);
639}
640
641
1d2c9042 642static void pcmcia_delayed_add_device(void *data)
1ad275e3 643{
dc109497 644 struct pcmcia_socket *s = data;
1d2c9042 645 pcmcia_device_add(s, s->pcmcia_state.mfc_pfc);
b5e43913 646 s->pcmcia_state.device_add_pending = 0;
1d2c9042 647 s->pcmcia_state.mfc_pfc = 0;
1ad275e3
DB
648}
649
e2f0b534 650static int pcmcia_requery(struct device *dev, void * _data)
ff1fa9ef 651{
e2f0b534
DB
652 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
653 if (!p_dev->dev.driver)
654 pcmcia_device_query(p_dev);
655
656 return 0;
657}
658
4ae1cbf1 659static void pcmcia_bus_rescan(struct pcmcia_socket *skt, int new_cis)
e2f0b534 660{
4ae1cbf1 661 int no_devices = 0;
f901b8c4 662 int ret = 0;
e2f0b534
DB
663 unsigned long flags;
664
7fe908dd 665 /* must be called with skt_mutex held */
e2f0b534 666 spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
dc109497 667 if (list_empty(&skt->devices_list))
4ae1cbf1 668 no_devices = 1;
e2f0b534
DB
669 spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
670
4ae1cbf1
DB
671 /* If this is because of a CIS override, start over */
672 if (new_cis && !no_devices)
673 pcmcia_card_remove(skt, NULL);
674
e2f0b534
DB
675 /* if no devices were added for this socket yet because of
676 * missing resource information or other trouble, we need to
677 * do this now. */
4ae1cbf1 678 if (no_devices || new_cis) {
f901b8c4 679 ret = pcmcia_card_add(skt);
e2f0b534
DB
680 if (ret)
681 return;
682 }
683
684 /* some device information might have changed because of a CIS
685 * update or because we can finally read it correctly... so
686 * determine it again, overwriting old values if necessary. */
687 bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery);
688
689 /* we re-scan all devices, not just the ones connected to this
690 * socket. This does not matter, though. */
f901b8c4
DB
691 ret = bus_rescan_devices(&pcmcia_bus_type);
692 if (ret)
693 printk(KERN_INFO "pcmcia: bus_rescan_devices failed\n");
ff1fa9ef 694}
1ad275e3 695
1d2c9042
DB
696#ifdef CONFIG_PCMCIA_LOAD_CIS
697
698/**
699 * pcmcia_load_firmware - load CIS from userspace if device-provided is broken
700 * @dev - the pcmcia device which needs a CIS override
701 * @filename - requested filename in /lib/firmware/
702 *
703 * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if
704 * the one provided by the card is broken. The firmware files reside in
705 * /lib/firmware/ in userspace.
706 */
707static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename)
708{
709 struct pcmcia_socket *s = dev->socket;
710 const struct firmware *fw;
711 char path[20];
712 int ret = -ENOMEM;
713 int no_funcs;
714 int old_funcs;
715 cisdump_t *cis;
716 cistpl_longlink_mfc_t mfc;
717
718 if (!filename)
719 return -EINVAL;
720
721 ds_dbg(1, "trying to load firmware %s\n", filename);
722
723 if (strlen(filename) > 14)
724 return -EINVAL;
725
726 snprintf(path, 20, "%s", filename);
727
728 if (request_firmware(&fw, path, &dev->dev) == 0) {
729 if (fw->size >= CISTPL_MAX_CIS_SIZE)
730 goto release;
731
732 cis = kzalloc(sizeof(cisdump_t), GFP_KERNEL);
733 if (!cis)
734 goto release;
735
736 cis->Length = fw->size + 1;
737 memcpy(cis->Data, fw->data, fw->size);
738
739 if (!pcmcia_replace_cis(s, cis))
740 ret = 0;
741
742 /* update information */
743 pcmcia_device_query(dev);
744
745 /* does this cis override add or remove functions? */
746 old_funcs = s->functions;
747
748 if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc))
749 no_funcs = mfc.nfn;
750 else
751 no_funcs = 1;
752 s->functions = no_funcs;
753
754 if (old_funcs > no_funcs)
755 pcmcia_card_remove(s, dev);
756 else if (no_funcs > old_funcs)
757 pcmcia_add_device_later(s, 1);
758 }
759 release:
760 release_firmware(fw);
761
762 return (ret);
763}
764
765#else /* !CONFIG_PCMCIA_LOAD_CIS */
766
767static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename)
768{
769 return -ENODEV;
770}
771
772#endif
773
774
1ad275e3
DB
775static inline int pcmcia_devmatch(struct pcmcia_device *dev,
776 struct pcmcia_device_id *did)
777{
778 if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) {
779 if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id))
780 return 0;
781 }
782
783 if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) {
784 if ((!dev->has_card_id) || (dev->card_id != did->card_id))
785 return 0;
786 }
787
788 if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) {
789 if (dev->func != did->function)
790 return 0;
791 }
792
793 if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) {
794 if (!dev->prod_id[0])
795 return 0;
796 if (strcmp(did->prod_id[0], dev->prod_id[0]))
797 return 0;
798 }
799
800 if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) {
801 if (!dev->prod_id[1])
802 return 0;
803 if (strcmp(did->prod_id[1], dev->prod_id[1]))
804 return 0;
805 }
806
807 if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) {
808 if (!dev->prod_id[2])
809 return 0;
810 if (strcmp(did->prod_id[2], dev->prod_id[2]))
811 return 0;
812 }
813
814 if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) {
815 if (!dev->prod_id[3])
816 return 0;
817 if (strcmp(did->prod_id[3], dev->prod_id[3]))
818 return 0;
819 }
820
821 if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) {
1ad275e3
DB
822 if (dev->device_no != did->device_no)
823 return 0;
824 }
825
826 if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) {
827 if ((!dev->has_func_id) || (dev->func_id != did->func_id))
828 return 0;
829
830 /* if this is a pseudo-multi-function device,
831 * we need explicit matches */
832 if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO)
833 return 0;
834 if (dev->device_no)
835 return 0;
836
837 /* also, FUNC_ID matching needs to be activated by userspace
838 * after it has re-checked that there is no possible module
839 * with a prod_id/manf_id/card_id match.
840 */
841 if (!dev->allow_func_id_match)
842 return 0;
843 }
844
ea7b3882 845 if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) {
daa9517d
DB
846 if (!dev->socket->fake_cis)
847 pcmcia_load_firmware(dev, did->cisfile);
848
849 if (!dev->socket->fake_cis)
ea7b3882 850 return 0;
ea7b3882
DB
851 }
852
f602ff7e
DB
853 if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) {
854 int i;
855 for (i=0; i<4; i++)
856 if (dev->prod_id[i])
857 return 0;
858 if (dev->has_manf_id || dev->has_card_id || dev->has_func_id)
859 return 0;
860 }
861
1ad275e3
DB
862 dev->dev.driver_data = (void *) did;
863
864 return 1;
865}
866
867
1da177e4
LT
868static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) {
869 struct pcmcia_device * p_dev = to_pcmcia_dev(dev);
870 struct pcmcia_driver * p_drv = to_pcmcia_drv(drv);
1ad275e3 871 struct pcmcia_device_id *did = p_drv->id_table;
1da177e4 872
0e0fad8f 873#ifdef CONFIG_PCMCIA_IOCTL
1da177e4
LT
874 /* matching by cardmgr */
875 if (p_dev->cardmgr == p_drv)
876 return 1;
0e0fad8f 877#endif
1da177e4 878
1ad275e3
DB
879 while (did && did->match_flags) {
880 if (pcmcia_devmatch(p_dev, did))
881 return 1;
882 did++;
883 }
884
1da177e4
LT
885 return 0;
886}
887
840c2ac5
DB
888#ifdef CONFIG_HOTPLUG
889
312c004d
KS
890static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp,
891 char *buffer, int buffer_size)
840c2ac5
DB
892{
893 struct pcmcia_device *p_dev;
894 int i, length = 0;
895 u32 hash[4] = { 0, 0, 0, 0};
896
897 if (!dev)
898 return -ENODEV;
899
900 p_dev = to_pcmcia_dev(dev);
901
902 /* calculate hashes */
903 for (i=0; i<4; i++) {
904 if (!p_dev->prod_id[i])
905 continue;
906 hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i]));
907 }
908
909 i = 0;
910
312c004d
KS
911 if (add_uevent_var(envp, num_envp, &i,
912 buffer, buffer_size, &length,
913 "SOCKET_NO=%u",
914 p_dev->socket->sock))
840c2ac5
DB
915 return -ENOMEM;
916
312c004d
KS
917 if (add_uevent_var(envp, num_envp, &i,
918 buffer, buffer_size, &length,
919 "DEVICE_NO=%02X",
920 p_dev->device_no))
840c2ac5
DB
921 return -ENOMEM;
922
312c004d
KS
923 if (add_uevent_var(envp, num_envp, &i,
924 buffer, buffer_size, &length,
925 "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X"
926 "pa%08Xpb%08Xpc%08Xpd%08X",
927 p_dev->has_manf_id ? p_dev->manf_id : 0,
928 p_dev->has_card_id ? p_dev->card_id : 0,
929 p_dev->has_func_id ? p_dev->func_id : 0,
930 p_dev->func,
931 p_dev->device_no,
932 hash[0],
933 hash[1],
934 hash[2],
935 hash[3]))
840c2ac5
DB
936 return -ENOMEM;
937
938 envp[i] = NULL;
939
940 return 0;
941}
942
943#else
944
312c004d 945static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp,
840c2ac5
DB
946 char *buffer, int buffer_size)
947{
948 return -ENODEV;
949}
950
951#endif
952
1da177e4
LT
953/************************ per-device sysfs output ***************************/
954
955#define pcmcia_device_attr(field, test, format) \
e404e274 956static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \
1da177e4
LT
957{ \
958 struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \
959 return p_dev->test ? sprintf (buf, format, p_dev->field) : -ENODEV; \
960}
961
962#define pcmcia_device_stringattr(name, field) \
e404e274 963static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \
1da177e4
LT
964{ \
965 struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \
966 return p_dev->field ? sprintf (buf, "%s\n", p_dev->field) : -ENODEV; \
967}
968
969pcmcia_device_attr(func, socket, "0x%02x\n");
970pcmcia_device_attr(func_id, has_func_id, "0x%02x\n");
971pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n");
972pcmcia_device_attr(card_id, has_card_id, "0x%04x\n");
973pcmcia_device_stringattr(prod_id1, prod_id[0]);
974pcmcia_device_stringattr(prod_id2, prod_id[1]);
975pcmcia_device_stringattr(prod_id3, prod_id[2]);
976pcmcia_device_stringattr(prod_id4, prod_id[3]);
977
db1019ca
DB
978
979static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf)
980{
981 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
982
f6fbe01a 983 if (p_dev->suspended)
db1019ca
DB
984 return sprintf(buf, "off\n");
985 else
986 return sprintf(buf, "on\n");
987}
988
989static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr,
990 const char *buf, size_t count)
991{
992 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
993 int ret = 0;
994
995 if (!count)
996 return -EINVAL;
997
f6fbe01a 998 if ((!p_dev->suspended) && !strncmp(buf, "off", 3))
db1019ca 999 ret = dpm_runtime_suspend(dev, PMSG_SUSPEND);
f6fbe01a 1000 else if (p_dev->suspended && !strncmp(buf, "on", 2))
db1019ca
DB
1001 dpm_runtime_resume(dev);
1002
1003 return ret ? ret : count;
1004}
1005
1006
3704511b 1007static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
3248ff43
DB
1008{
1009 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
1010 int i;
1011 u32 hash[4] = { 0, 0, 0, 0};
1012
1013 /* calculate hashes */
1014 for (i=0; i<4; i++) {
1015 if (!p_dev->prod_id[i])
1016 continue;
1017 hash[i] = crc32(0,p_dev->prod_id[i],strlen(p_dev->prod_id[i]));
1018 }
1019 return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X"
1020 "pa%08Xpb%08Xpc%08Xpd%08X\n",
1021 p_dev->has_manf_id ? p_dev->manf_id : 0,
1022 p_dev->has_card_id ? p_dev->card_id : 0,
1023 p_dev->has_func_id ? p_dev->func_id : 0,
1024 p_dev->func, p_dev->device_no,
1025 hash[0], hash[1], hash[2], hash[3]);
1026}
a5b55778 1027
3248ff43
DB
1028static ssize_t pcmcia_store_allow_func_id_match(struct device *dev,
1029 struct device_attribute *attr, const char *buf, size_t count)
a5b55778
DB
1030{
1031 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
f901b8c4 1032 int ret;
db1019ca
DB
1033
1034 if (!count)
1035 return -EINVAL;
a5b55778 1036
7fe908dd 1037 mutex_lock(&p_dev->socket->skt_mutex);
a5b55778 1038 p_dev->allow_func_id_match = 1;
7fe908dd 1039 mutex_unlock(&p_dev->socket->skt_mutex);
a5b55778 1040
f901b8c4
DB
1041 ret = bus_rescan_devices(&pcmcia_bus_type);
1042 if (ret)
1043 printk(KERN_INFO "pcmcia: bus_rescan_devices failed after "
1044 "allowing func_id matches\n");
a5b55778
DB
1045
1046 return count;
1047}
1048
1da177e4
LT
1049static struct device_attribute pcmcia_dev_attrs[] = {
1050 __ATTR(function, 0444, func_show, NULL),
db1019ca 1051 __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state),
1da177e4
LT
1052 __ATTR_RO(func_id),
1053 __ATTR_RO(manf_id),
1054 __ATTR_RO(card_id),
1055 __ATTR_RO(prod_id1),
1056 __ATTR_RO(prod_id2),
1057 __ATTR_RO(prod_id3),
1058 __ATTR_RO(prod_id4),
3248ff43 1059 __ATTR_RO(modalias),
a5b55778 1060 __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match),
1da177e4
LT
1061 __ATTR_NULL,
1062};
1063
8e9e793d
DB
1064/* PM support, also needed for reset */
1065
1066static int pcmcia_dev_suspend(struct device * dev, pm_message_t state)
1067{
1068 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
1069 struct pcmcia_driver *p_drv = NULL;
f6fbe01a 1070 int ret = 0;
8e9e793d
DB
1071
1072 if (dev->driver)
1073 p_drv = to_pcmcia_drv(dev->driver);
1074
e2d40963
DB
1075 if (!p_drv)
1076 goto out;
1077
1078 if (p_drv->suspend) {
8661bb5b
DB
1079 ret = p_drv->suspend(p_dev);
1080 if (ret)
f6fbe01a 1081 goto out;
8661bb5b 1082 }
8e9e793d 1083
e2d40963
DB
1084 if (p_dev->device_no == p_dev->func)
1085 pcmcia_release_configuration(p_dev);
1086
f6fbe01a
DB
1087 out:
1088 if (!ret)
1089 p_dev->suspended = 1;
1090 return ret;
8e9e793d
DB
1091}
1092
1093
1094static int pcmcia_dev_resume(struct device * dev)
1095{
1096 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
1097 struct pcmcia_driver *p_drv = NULL;
f6fbe01a 1098 int ret = 0;
8e9e793d
DB
1099
1100 if (dev->driver)
1101 p_drv = to_pcmcia_drv(dev->driver);
1102
e2d40963
DB
1103 if (!p_drv)
1104 goto out;
1105
1106 if (p_dev->device_no == p_dev->func) {
1107 ret = pcmcia_request_configuration(p_dev, &p_dev->conf);
1108 if (ret)
1109 goto out;
8661bb5b 1110 }
8e9e793d 1111
e2d40963
DB
1112 if (p_drv->resume)
1113 ret = p_drv->resume(p_dev);
1114
f6fbe01a
DB
1115 out:
1116 if (!ret)
1117 p_dev->suspended = 0;
1118 return ret;
8e9e793d
DB
1119}
1120
1121
1122static int pcmcia_bus_suspend_callback(struct device *dev, void * _data)
1123{
1124 struct pcmcia_socket *skt = _data;
1125 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
1126
1127 if (p_dev->socket != skt)
1128 return 0;
1129
1130 return dpm_runtime_suspend(dev, PMSG_SUSPEND);
1131}
1132
1133static int pcmcia_bus_resume_callback(struct device *dev, void * _data)
1134{
1135 struct pcmcia_socket *skt = _data;
1136 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
1137
1138 if (p_dev->socket != skt)
1139 return 0;
1140
1141 dpm_runtime_resume(dev);
1142
1143 return 0;
1144}
1145
1146static int pcmcia_bus_resume(struct pcmcia_socket *skt)
1147{
1148 bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback);
1149 return 0;
1150}
1151
1152static int pcmcia_bus_suspend(struct pcmcia_socket *skt)
1153{
1154 if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt,
1155 pcmcia_bus_suspend_callback)) {
1156 pcmcia_bus_resume(skt);
1157 return -EIO;
1158 }
1159 return 0;
1160}
1161
1da177e4 1162
1da177e4
LT
1163/*======================================================================
1164
1165 The card status event handler.
1166
1167======================================================================*/
1168
1da177e4
LT
1169/* Normally, the event is passed to individual drivers after
1170 * informing userspace. Only for CS_EVENT_CARD_REMOVAL this
1171 * is inversed to maintain historic compatibility.
1172 */
1173
1174static int ds_event(struct pcmcia_socket *skt, event_t event, int priority)
1175{
dc109497 1176 struct pcmcia_socket *s = pcmcia_get_socket(skt);
1da177e4 1177
1617406a
FM
1178 if (!s) {
1179 printk(KERN_ERR "PCMCIA obtaining reference to socket %p " \
1180 "failed, event 0x%x lost!\n", skt, event);
1181 return -ENODEV;
1182 }
1183
1da177e4 1184 ds_dbg(1, "ds_event(0x%06x, %d, 0x%p)\n",
dc109497 1185 event, priority, skt);
1da177e4 1186
f8cfa618 1187 switch (event) {
1da177e4 1188 case CS_EVENT_CARD_REMOVAL:
b5e43913 1189 s->pcmcia_state.present = 0;
d6ff5a85 1190 pcmcia_card_remove(skt, NULL);
dc109497 1191 handle_event(skt, event);
1da177e4 1192 break;
f8cfa618 1193
1da177e4 1194 case CS_EVENT_CARD_INSERTION:
b5e43913 1195 s->pcmcia_state.present = 1;
1da177e4 1196 pcmcia_card_add(skt);
dc109497 1197 handle_event(skt, event);
1da177e4
LT
1198 break;
1199
1200 case CS_EVENT_EJECTION_REQUEST:
1da177e4
LT
1201 break;
1202
8e9e793d
DB
1203 case CS_EVENT_PM_SUSPEND:
1204 case CS_EVENT_PM_RESUME:
1205 case CS_EVENT_RESET_PHYSICAL:
1206 case CS_EVENT_CARD_RESET:
1da177e4 1207 default:
dc109497 1208 handle_event(skt, event);
1da177e4
LT
1209 break;
1210 }
1211
dc109497
DB
1212 pcmcia_put_socket(s);
1213
1da177e4
LT
1214 return 0;
1215} /* ds_event */
1216
1217
9940ec36
DB
1218struct pcmcia_device * pcmcia_dev_present(struct pcmcia_device *_p_dev)
1219{
1220 struct pcmcia_device *p_dev;
1221 struct pcmcia_device *ret = NULL;
1222
1223 p_dev = pcmcia_get_dev(_p_dev);
1224 if (!p_dev)
1225 return NULL;
1226
1227 if (!p_dev->socket->pcmcia_state.present)
1228 goto out;
1229
1230 if (p_dev->_removed)
1231 goto out;
1232
1233 if (p_dev->suspended)
1234 goto out;
1235
1236 ret = p_dev;
1237 out:
1238 pcmcia_put_dev(p_dev);
1239 return ret;
1240}
1241EXPORT_SYMBOL(pcmcia_dev_present);
1242
1243
90c6cdd1
DB
1244static struct pcmcia_callback pcmcia_bus_callback = {
1245 .owner = THIS_MODULE,
1246 .event = ds_event,
1247 .requery = pcmcia_bus_rescan,
8e9e793d
DB
1248 .suspend = pcmcia_bus_suspend,
1249 .resume = pcmcia_bus_resume,
90c6cdd1
DB
1250};
1251
d8539d81
DT
1252static int __devinit pcmcia_bus_add_socket(struct class_device *class_dev,
1253 struct class_interface *class_intf)
1da177e4
LT
1254{
1255 struct pcmcia_socket *socket = class_get_devdata(class_dev);
1da177e4
LT
1256 int ret;
1257
dc109497
DB
1258 socket = pcmcia_get_socket(socket);
1259 if (!socket) {
1da177e4 1260 printk(KERN_ERR "PCMCIA obtaining reference to socket %p failed\n", socket);
1da177e4
LT
1261 return -ENODEV;
1262 }
1263
1da177e4
LT
1264 /*
1265 * Ugly. But we want to wait for the socket threads to have started up.
1266 * We really should let the drivers themselves drive some of this..
1267 */
1268 msleep(250);
1269
e7a480d2 1270#ifdef CONFIG_PCMCIA_IOCTL
dc109497 1271 init_waitqueue_head(&socket->queue);
e7a480d2 1272#endif
dc109497 1273 INIT_LIST_HEAD(&socket->devices_list);
1d2c9042 1274 INIT_WORK(&socket->device_add, pcmcia_delayed_add_device, socket);
dc109497
DB
1275 memset(&socket->pcmcia_state, 0, sizeof(u8));
1276 socket->device_count = 0;
1da177e4 1277
90c6cdd1 1278 ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback);
1da177e4
LT
1279 if (ret) {
1280 printk(KERN_ERR "PCMCIA registration PCCard core failed for socket %p\n", socket);
dc109497 1281 pcmcia_put_socket(socket);
1da177e4
LT
1282 return (ret);
1283 }
1284
1285 return 0;
1286}
1287
d8539d81
DT
1288static void pcmcia_bus_remove_socket(struct class_device *class_dev,
1289 struct class_interface *class_intf)
1da177e4
LT
1290{
1291 struct pcmcia_socket *socket = class_get_devdata(class_dev);
1292
dc109497 1293 if (!socket)
1da177e4
LT
1294 return;
1295
dc109497 1296 socket->pcmcia_state.dead = 1;
1da177e4
LT
1297 pccard_register_pcmcia(socket, NULL);
1298
dfbc9e9d 1299 /* unregister any unbound devices */
8e4d9dcb 1300 mutex_lock(&socket->skt_mutex);
dfbc9e9d 1301 pcmcia_card_remove(socket, NULL);
8e4d9dcb 1302 mutex_unlock(&socket->skt_mutex);
dfbc9e9d 1303
dc109497 1304 pcmcia_put_socket(socket);
1da177e4
LT
1305
1306 return;
1307}
1308
1309
1310/* the pcmcia_bus_interface is used to handle pcmcia socket devices */
1311static struct class_interface pcmcia_bus_interface = {
1312 .class = &pcmcia_socket_class,
1313 .add = &pcmcia_bus_add_socket,
1314 .remove = &pcmcia_bus_remove_socket,
1315};
1316
1317
e7a480d2 1318struct bus_type pcmcia_bus_type = {
1da177e4 1319 .name = "pcmcia",
312c004d 1320 .uevent = pcmcia_bus_uevent,
1da177e4
LT
1321 .match = pcmcia_bus_match,
1322 .dev_attrs = pcmcia_dev_attrs,
1d0baa3a
RK
1323 .probe = pcmcia_device_probe,
1324 .remove = pcmcia_device_remove,
8e9e793d
DB
1325 .suspend = pcmcia_dev_suspend,
1326 .resume = pcmcia_dev_resume,
1da177e4 1327};
1da177e4
LT
1328
1329
1330static int __init init_pcmcia_bus(void)
1331{
ace7d477
RD
1332 int ret;
1333
1da177e4
LT
1334 spin_lock_init(&pcmcia_dev_list_lock);
1335
ace7d477
RD
1336 ret = bus_register(&pcmcia_bus_type);
1337 if (ret < 0) {
1338 printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret);
1339 return ret;
1340 }
1341 ret = class_interface_register(&pcmcia_bus_interface);
1342 if (ret < 0) {
1343 printk(KERN_WARNING
1344 "pcmcia: class_interface_register error: %d\n", ret);
1345 bus_unregister(&pcmcia_bus_type);
1346 return ret;
1347 }
1da177e4 1348
e7a480d2 1349 pcmcia_setup_ioctl();
1da177e4
LT
1350
1351 return 0;
1352}
1353fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that
1354 * pcmcia_socket_class is already registered */
1355
1356
1357static void __exit exit_pcmcia_bus(void)
1358{
e7a480d2 1359 pcmcia_cleanup_ioctl();
1da177e4 1360
e7a480d2 1361 class_interface_unregister(&pcmcia_bus_interface);
1da177e4
LT
1362
1363 bus_unregister(&pcmcia_bus_type);
1364}
1365module_exit(exit_pcmcia_bus);
1366
1367
1da177e4 1368MODULE_ALIAS("ds");
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