blob: 5a85871f5ee919ff3bdb18f10be8715132b037de [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
Dominik Brodowski8661bb52006-03-02 00:02:33 +010013 * (C) 2003 - 2006 Dominik Brodowski
Linus Torvalds1da177e2005-04-16 15:20:36 -070014 */
15
Linus Torvalds1da177e2005-04-16 15:20:36 -070016#include <linux/kernel.h>
Dominik Brodowski3b659fb2005-06-27 16:28:51 -070017#include <linux/module.h>
18#include <linux/init.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070019#include <linux/errno.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070020#include <linux/list.h>
21#include <linux/delay.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070022#include <linux/workqueue.h>
Dominik Brodowski840c2ac2005-06-27 16:28:04 -070023#include <linux/crc32.h>
Dominik Brodowskidaa95172005-06-27 16:28:14 -070024#include <linux/firmware.h>
Dominik Brodowski360b65b2006-01-10 20:50:39 +010025#include <linux/kref.h>
James Bottomley43d9f7f2007-10-16 01:23:58 -070026#include <linux/dma-mapping.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070027
Linus Torvalds1da177e2005-04-16 15:20:36 -070028#define IN_CARD_SERVICES
Linus Torvalds1da177e2005-04-16 15:20:36 -070029#include <pcmcia/cs_types.h>
30#include <pcmcia/cs.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070031#include <pcmcia/cistpl.h>
32#include <pcmcia/ds.h>
33#include <pcmcia/ss.h>
34
35#include "cs_internal.h"
Dominik Brodowskie7a480d2005-06-27 16:28:47 -070036#include "ds_internal.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070037
38/*====================================================================*/
39
40/* Module parameters */
41
42MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
43MODULE_DESCRIPTION("PCMCIA Driver Services");
44MODULE_LICENSE("GPL");
45
46#ifdef DEBUG
Dominik Brodowskie7a480d2005-06-27 16:28:47 -070047int ds_pc_debug;
Linus Torvalds1da177e2005-04-16 15:20:36 -070048
49module_param_named(pc_debug, ds_pc_debug, int, 0644);
50
51#define ds_dbg(lvl, fmt, arg...) do { \
52 if (ds_pc_debug > (lvl)) \
53 printk(KERN_DEBUG "ds: " fmt , ## arg); \
54} while (0)
55#else
56#define ds_dbg(lvl, fmt, arg...) do { } while (0)
57#endif
58
Dominik Brodowskie7a480d2005-06-27 16:28:47 -070059spinlock_t pcmcia_dev_list_lock;
Linus Torvalds1da177e2005-04-16 15:20:36 -070060
Linus Torvalds1da177e2005-04-16 15:20:36 -070061/*====================================================================*/
62
63/* code which was in cs.c before */
64
65/* String tables for error messages */
66
67typedef struct lookup_t {
68 int key;
69 char *msg;
70} lookup_t;
71
72static const lookup_t error_table[] = {
73 { CS_SUCCESS, "Operation succeeded" },
74 { CS_BAD_ADAPTER, "Bad adapter" },
75 { CS_BAD_ATTRIBUTE, "Bad attribute", },
76 { CS_BAD_BASE, "Bad base address" },
77 { CS_BAD_EDC, "Bad EDC" },
78 { CS_BAD_IRQ, "Bad IRQ" },
79 { CS_BAD_OFFSET, "Bad offset" },
80 { CS_BAD_PAGE, "Bad page number" },
81 { CS_READ_FAILURE, "Read failure" },
82 { CS_BAD_SIZE, "Bad size" },
83 { CS_BAD_SOCKET, "Bad socket" },
84 { CS_BAD_TYPE, "Bad type" },
85 { CS_BAD_VCC, "Bad Vcc" },
86 { CS_BAD_VPP, "Bad Vpp" },
87 { CS_BAD_WINDOW, "Bad window" },
88 { CS_WRITE_FAILURE, "Write failure" },
89 { CS_NO_CARD, "No card present" },
90 { CS_UNSUPPORTED_FUNCTION, "Usupported function" },
91 { CS_UNSUPPORTED_MODE, "Unsupported mode" },
92 { CS_BAD_SPEED, "Bad speed" },
93 { CS_BUSY, "Resource busy" },
94 { CS_GENERAL_FAILURE, "General failure" },
95 { CS_WRITE_PROTECTED, "Write protected" },
96 { CS_BAD_ARG_LENGTH, "Bad argument length" },
97 { CS_BAD_ARGS, "Bad arguments" },
98 { CS_CONFIGURATION_LOCKED, "Configuration locked" },
99 { CS_IN_USE, "Resource in use" },
100 { CS_NO_MORE_ITEMS, "No more items" },
101 { CS_OUT_OF_RESOURCE, "Out of resource" },
102 { CS_BAD_HANDLE, "Bad handle" },
103 { CS_BAD_TUPLE, "Bad CIS tuple" }
104};
105
106
107static const lookup_t service_table[] = {
108 { AccessConfigurationRegister, "AccessConfigurationRegister" },
109 { AddSocketServices, "AddSocketServices" },
110 { AdjustResourceInfo, "AdjustResourceInfo" },
111 { CheckEraseQueue, "CheckEraseQueue" },
112 { CloseMemory, "CloseMemory" },
113 { DeregisterClient, "DeregisterClient" },
114 { DeregisterEraseQueue, "DeregisterEraseQueue" },
115 { GetCardServicesInfo, "GetCardServicesInfo" },
116 { GetClientInfo, "GetClientInfo" },
117 { GetConfigurationInfo, "GetConfigurationInfo" },
118 { GetEventMask, "GetEventMask" },
119 { GetFirstClient, "GetFirstClient" },
120 { GetFirstRegion, "GetFirstRegion" },
121 { GetFirstTuple, "GetFirstTuple" },
122 { GetNextClient, "GetNextClient" },
123 { GetNextRegion, "GetNextRegion" },
124 { GetNextTuple, "GetNextTuple" },
125 { GetStatus, "GetStatus" },
126 { GetTupleData, "GetTupleData" },
127 { MapMemPage, "MapMemPage" },
128 { ModifyConfiguration, "ModifyConfiguration" },
129 { ModifyWindow, "ModifyWindow" },
130 { OpenMemory, "OpenMemory" },
131 { ParseTuple, "ParseTuple" },
132 { ReadMemory, "ReadMemory" },
133 { RegisterClient, "RegisterClient" },
134 { RegisterEraseQueue, "RegisterEraseQueue" },
135 { RegisterMTD, "RegisterMTD" },
136 { ReleaseConfiguration, "ReleaseConfiguration" },
137 { ReleaseIO, "ReleaseIO" },
138 { ReleaseIRQ, "ReleaseIRQ" },
139 { ReleaseWindow, "ReleaseWindow" },
140 { RequestConfiguration, "RequestConfiguration" },
141 { RequestIO, "RequestIO" },
142 { RequestIRQ, "RequestIRQ" },
143 { RequestSocketMask, "RequestSocketMask" },
144 { RequestWindow, "RequestWindow" },
145 { ResetCard, "ResetCard" },
146 { SetEventMask, "SetEventMask" },
147 { ValidateCIS, "ValidateCIS" },
148 { WriteMemory, "WriteMemory" },
149 { BindDevice, "BindDevice" },
150 { BindMTD, "BindMTD" },
151 { ReportError, "ReportError" },
152 { SuspendCard, "SuspendCard" },
153 { ResumeCard, "ResumeCard" },
154 { EjectCard, "EjectCard" },
155 { InsertCard, "InsertCard" },
156 { ReplaceCIS, "ReplaceCIS" }
157};
158
159
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700160static int pcmcia_report_error(struct pcmcia_device *p_dev, error_info_t *err)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161{
162 int i;
163 char *serv;
164
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700165 if (!p_dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166 printk(KERN_NOTICE);
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700167 else
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168 printk(KERN_NOTICE "%s: ", p_dev->dev.bus_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169
170 for (i = 0; i < ARRAY_SIZE(service_table); i++)
171 if (service_table[i].key == err->func)
172 break;
173 if (i < ARRAY_SIZE(service_table))
174 serv = service_table[i].msg;
175 else
176 serv = "Unknown service number";
177
178 for (i = 0; i < ARRAY_SIZE(error_table); i++)
179 if (error_table[i].key == err->retcode)
180 break;
181 if (i < ARRAY_SIZE(error_table))
182 printk("%s: %s\n", serv, error_table[i].msg);
183 else
184 printk("%s: Unknown error code %#x\n", serv, err->retcode);
185
186 return CS_SUCCESS;
187} /* report_error */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188
189/* end of code which was in cs.c before */
190
191/*======================================================================*/
192
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700193void cs_error(struct pcmcia_device *p_dev, int func, int ret)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194{
195 error_info_t err = { func, ret };
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700196 pcmcia_report_error(p_dev, &err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197}
198EXPORT_SYMBOL(cs_error);
199
Dominik Brodowski23a83bf2005-06-27 16:28:07 -0700200
201static void pcmcia_check_driver(struct pcmcia_driver *p_drv)
202{
203 struct pcmcia_device_id *did = p_drv->id_table;
204 unsigned int i;
205 u32 hash;
206
Dominik Brodowskif8cfa612005-11-14 21:25:51 +0100207 if (!p_drv->probe || !p_drv->remove)
Pavel Roskinba5bb6b2005-07-28 01:07:20 -0700208 printk(KERN_DEBUG "pcmcia: %s lacks a requisite callback "
209 "function\n", p_drv->drv.name);
Dominik Brodowski1e212f32005-07-07 17:59:00 -0700210
Dominik Brodowski23a83bf2005-06-27 16:28:07 -0700211 while (did && did->match_flags) {
212 for (i=0; i<4; i++) {
213 if (!did->prod_id[i])
214 continue;
215
216 hash = crc32(0, did->prod_id[i], strlen(did->prod_id[i]));
217 if (hash == did->prod_id_hash[i])
218 continue;
219
220 printk(KERN_DEBUG "pcmcia: %s: invalid hash for "
221 "product string \"%s\": is 0x%x, should "
222 "be 0x%x\n", p_drv->drv.name, did->prod_id[i],
223 did->prod_id_hash[i], hash);
Dominik Brodowski5085cb22005-06-27 16:28:45 -0700224 printk(KERN_DEBUG "pcmcia: see "
225 "Documentation/pcmcia/devicetable.txt for "
226 "details\n");
Dominik Brodowski23a83bf2005-06-27 16:28:07 -0700227 }
228 did++;
229 }
230
231 return;
232}
233
Dominik Brodowskidaa95172005-06-27 16:28:14 -0700234
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235/*======================================================================*/
236
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237
Bernhard Walle6179b552007-05-06 14:48:44 -0700238struct pcmcia_dynid {
239 struct list_head node;
240 struct pcmcia_device_id id;
241};
242
243/**
244 * pcmcia_store_new_id - add a new PCMCIA device ID to this driver and re-probe devices
245 * @driver: target device driver
246 * @buf: buffer for scanning device ID data
247 * @count: input size
248 *
249 * Adds a new dynamic PCMCIA device ID to this driver,
250 * and causes the driver to probe for all devices again.
251 */
252static ssize_t
253pcmcia_store_new_id(struct device_driver *driver, const char *buf, size_t count)
254{
255 struct pcmcia_dynid *dynid;
256 struct pcmcia_driver *pdrv = to_pcmcia_drv(driver);
257 __u16 match_flags, manf_id, card_id;
258 __u8 func_id, function, device_no;
259 __u32 prod_id_hash[4] = {0, 0, 0, 0};
260 int fields=0;
261 int retval = 0;
262
263 fields = sscanf(buf, "%hx %hx %hx %hhx %hhx %hhx %x %x %x %x",
264 &match_flags, &manf_id, &card_id, &func_id, &function, &device_no,
265 &prod_id_hash[0], &prod_id_hash[1], &prod_id_hash[2], &prod_id_hash[3]);
266 if (fields < 6)
267 return -EINVAL;
268
269 dynid = kzalloc(sizeof(struct pcmcia_dynid), GFP_KERNEL);
270 if (!dynid)
271 return -ENOMEM;
272
273 INIT_LIST_HEAD(&dynid->node);
274 dynid->id.match_flags = match_flags;
275 dynid->id.manf_id = manf_id;
276 dynid->id.card_id = card_id;
277 dynid->id.func_id = func_id;
278 dynid->id.function = function;
279 dynid->id.device_no = device_no;
280 memcpy(dynid->id.prod_id_hash, prod_id_hash, sizeof(__u32) * 4);
281
282 spin_lock(&pdrv->dynids.lock);
283 list_add_tail(&pdrv->dynids.list, &dynid->node);
284 spin_unlock(&pdrv->dynids.lock);
285
286 if (get_driver(&pdrv->drv)) {
287 retval = driver_attach(&pdrv->drv);
288 put_driver(&pdrv->drv);
289 }
290
291 if (retval)
292 return retval;
293 return count;
294}
295static DRIVER_ATTR(new_id, S_IWUSR, NULL, pcmcia_store_new_id);
296
297static void
298pcmcia_free_dynids(struct pcmcia_driver *drv)
299{
300 struct pcmcia_dynid *dynid, *n;
301
302 spin_lock(&drv->dynids.lock);
303 list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) {
304 list_del(&dynid->node);
305 kfree(dynid);
306 }
307 spin_unlock(&drv->dynids.lock);
308}
309
310static int
311pcmcia_create_newid_file(struct pcmcia_driver *drv)
312{
313 int error = 0;
314 if (drv->probe != NULL)
Greg Kroah-Hartman2344c6d2007-11-28 12:23:18 -0800315 error = driver_create_file(&drv->drv, &driver_attr_new_id);
Bernhard Walle6179b552007-05-06 14:48:44 -0700316 return error;
317}
318
319
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320/**
321 * pcmcia_register_driver - register a PCMCIA driver with the bus core
Randy Dunlap78187862007-12-10 15:49:22 -0800322 * @driver: the &driver being registered
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323 *
324 * Registers a PCMCIA driver with the PCMCIA bus core.
325 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326int pcmcia_register_driver(struct pcmcia_driver *driver)
327{
Bernhard Walle6179b552007-05-06 14:48:44 -0700328 int error;
329
Linus Torvalds1da177e2005-04-16 15:20:36 -0700330 if (!driver)
331 return -EINVAL;
332
Dominik Brodowski23a83bf2005-06-27 16:28:07 -0700333 pcmcia_check_driver(driver);
334
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335 /* initialize common fields */
336 driver->drv.bus = &pcmcia_bus_type;
337 driver->drv.owner = driver->owner;
Bernhard Walle6179b552007-05-06 14:48:44 -0700338 spin_lock_init(&driver->dynids.lock);
339 INIT_LIST_HEAD(&driver->dynids.list);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200341 ds_dbg(3, "registering driver %s\n", driver->drv.name);
342
Bernhard Walle6179b552007-05-06 14:48:44 -0700343 error = driver_register(&driver->drv);
344 if (error < 0)
345 return error;
346
347 error = pcmcia_create_newid_file(driver);
348 if (error)
349 driver_unregister(&driver->drv);
350
351 return error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352}
353EXPORT_SYMBOL(pcmcia_register_driver);
354
355/**
356 * pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core
Randy Dunlap78187862007-12-10 15:49:22 -0800357 * @driver: the &driver being unregistered
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358 */
359void pcmcia_unregister_driver(struct pcmcia_driver *driver)
360{
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200361 ds_dbg(3, "unregistering driver %s\n", driver->drv.name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362 driver_unregister(&driver->drv);
Bernhard Walle6179b552007-05-06 14:48:44 -0700363 pcmcia_free_dynids(driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364}
365EXPORT_SYMBOL(pcmcia_unregister_driver);
366
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367
368/* pcmcia_device handling */
369
Dominik Brodowskie7a480d2005-06-27 16:28:47 -0700370struct pcmcia_device * pcmcia_get_dev(struct pcmcia_device *p_dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371{
372 struct device *tmp_dev;
373 tmp_dev = get_device(&p_dev->dev);
374 if (!tmp_dev)
375 return NULL;
376 return to_pcmcia_dev(tmp_dev);
377}
378
Dominik Brodowskie7a480d2005-06-27 16:28:47 -0700379void pcmcia_put_dev(struct pcmcia_device *p_dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380{
381 if (p_dev)
382 put_device(&p_dev->dev);
383}
384
Dominik Brodowski360b65b2006-01-10 20:50:39 +0100385static void pcmcia_release_function(struct kref *ref)
386{
387 struct config_t *c = container_of(ref, struct config_t, ref);
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200388 ds_dbg(1, "releasing config_t\n");
Dominik Brodowski360b65b2006-01-10 20:50:39 +0100389 kfree(c);
390}
391
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392static void pcmcia_release_dev(struct device *dev)
393{
394 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200395 ds_dbg(1, "releasing device %s\n", p_dev->dev.bus_id);
Dominik Brodowskidc109492005-06-27 16:28:50 -0700396 pcmcia_put_socket(p_dev->socket);
Brice Goglinbd65a682005-09-09 13:03:29 -0700397 kfree(p_dev->devname);
Dominik Brodowski360b65b2006-01-10 20:50:39 +0100398 kref_put(&p_dev->function_config->ref, pcmcia_release_function);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399 kfree(p_dev);
400}
401
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500402static void pcmcia_add_device_later(struct pcmcia_socket *s, int mfc)
Dominik Brodowski82d56e62006-01-27 19:15:02 +0100403{
404 if (!s->pcmcia_state.device_add_pending) {
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200405 ds_dbg(1, "scheduling to add %s secondary"
406 " device to %d\n", mfc ? "mfc" : "pfc", s->sock);
Dominik Brodowski82d56e62006-01-27 19:15:02 +0100407 s->pcmcia_state.device_add_pending = 1;
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500408 s->pcmcia_state.mfc_pfc = mfc;
Dominik Brodowski82d56e62006-01-27 19:15:02 +0100409 schedule_work(&s->device_add);
410 }
411 return;
412}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413
414static int pcmcia_device_probe(struct device * dev)
415{
416 struct pcmcia_device *p_dev;
417 struct pcmcia_driver *p_drv;
Dominik Brodowski82d56e62006-01-27 19:15:02 +0100418 struct pcmcia_device_id *did;
Dominik Brodowskif8cfa612005-11-14 21:25:51 +0100419 struct pcmcia_socket *s;
Dominik Brodowskiaf2b3b52006-10-25 21:49:27 -0400420 cistpl_config_t cis_config;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421 int ret = 0;
422
423 dev = get_device(dev);
424 if (!dev)
425 return -ENODEV;
426
427 p_dev = to_pcmcia_dev(dev);
428 p_drv = to_pcmcia_drv(dev->driver);
Dominik Brodowskif8cfa612005-11-14 21:25:51 +0100429 s = p_dev->socket;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200431 ds_dbg(1, "trying to bind %s to %s\n", p_dev->dev.bus_id,
432 p_drv->drv.name);
433
Dominik Brodowski360b65b2006-01-10 20:50:39 +0100434 if ((!p_drv->probe) || (!p_dev->function_config) ||
435 (!try_module_get(p_drv->owner))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436 ret = -EINVAL;
437 goto put_dev;
438 }
439
Dominik Brodowskiaf2b3b52006-10-25 21:49:27 -0400440 /* set up some more device information */
441 ret = pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_CONFIG,
442 &cis_config);
443 if (!ret) {
444 p_dev->conf.ConfigBase = cis_config.base;
445 p_dev->conf.Present = cis_config.rmask[0];
446 } else {
447 printk(KERN_INFO "pcmcia: could not parse base and rmask0 of CIS\n");
448 p_dev->conf.ConfigBase = 0;
449 p_dev->conf.Present = 0;
450 }
451
Dominik Brodowskif8cfa612005-11-14 21:25:51 +0100452 ret = p_drv->probe(p_dev);
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200453 if (ret) {
454 ds_dbg(1, "binding %s to %s failed with %d\n",
455 p_dev->dev.bus_id, p_drv->drv.name, ret);
Dominik Brodowski82d56e62006-01-27 19:15:02 +0100456 goto put_module;
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200457 }
Dominik Brodowski82d56e62006-01-27 19:15:02 +0100458
459 /* handle pseudo multifunction devices:
460 * there are at most two pseudo multifunction devices.
461 * if we're matching against the first, schedule a
462 * call which will then check whether there are two
463 * pseudo devices, and if not, add the second one.
464 */
Andrew Morton80a55e92006-04-10 23:24:57 -0700465 did = p_dev->dev.driver_data;
Hugh Dickins4ceadbf2006-03-10 21:13:44 +0000466 if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) &&
Dominik Brodowski82d56e62006-01-27 19:15:02 +0100467 (p_dev->socket->device_count == 1) && (p_dev->device_no == 0))
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500468 pcmcia_add_device_later(p_dev->socket, 0);
Dominik Brodowskif8cfa612005-11-14 21:25:51 +0100469
470 put_module:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471 if (ret)
472 module_put(p_drv->owner);
473 put_dev:
Dominik Brodowskif8cfa612005-11-14 21:25:51 +0100474 if (ret)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700475 put_device(dev);
476 return (ret);
477}
478
479
Dominik Brodowskid6ff5a82006-02-05 09:51:34 +0100480/*
481 * Removes a PCMCIA card from the device tree and socket list.
482 */
483static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *leftover)
484{
485 struct pcmcia_device *p_dev;
486 struct pcmcia_device *tmp;
487 unsigned long flags;
488
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200489 ds_dbg(2, "pcmcia_card_remove(%d) %s\n", s->sock,
490 leftover ? leftover->devname : "");
Dominik Brodowskid6ff5a82006-02-05 09:51:34 +0100491
492 if (!leftover)
493 s->device_count = 0;
494 else
495 s->device_count = 1;
496
497 /* unregister all pcmcia_devices registered with this socket, except leftover */
498 list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) {
499 if (p_dev == leftover)
500 continue;
501
502 spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
503 list_del(&p_dev->socket_device_list);
504 p_dev->_removed=1;
505 spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
506
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200507 ds_dbg(2, "unregistering device %s\n", p_dev->dev.bus_id);
Dominik Brodowskid6ff5a82006-02-05 09:51:34 +0100508 device_unregister(&p_dev->dev);
509 }
510
511 return;
512}
513
Linus Torvalds1da177e2005-04-16 15:20:36 -0700514static int pcmcia_device_remove(struct device * dev)
515{
516 struct pcmcia_device *p_dev;
517 struct pcmcia_driver *p_drv;
Dominik Brodowskid6ff5a82006-02-05 09:51:34 +0100518 struct pcmcia_device_id *did;
Dominik Brodowskicc3b4862005-11-14 21:23:14 +0100519 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700520
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521 p_dev = to_pcmcia_dev(dev);
522 p_drv = to_pcmcia_drv(dev->driver);
Dominik Brodowskid6ff5a82006-02-05 09:51:34 +0100523
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200524 ds_dbg(1, "removing device %s\n", p_dev->dev.bus_id);
525
Dominik Brodowskid6ff5a82006-02-05 09:51:34 +0100526 /* If we're removing the primary module driving a
527 * pseudo multi-function card, we need to unbind
528 * all devices
529 */
Andrew Morton80a55e92006-04-10 23:24:57 -0700530 did = p_dev->dev.driver_data;
Hugh Dickinsb2f51a12006-03-10 21:15:19 +0000531 if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) &&
Dominik Brodowskid6ff5a82006-02-05 09:51:34 +0100532 (p_dev->socket->device_count != 0) &&
533 (p_dev->device_no == 0))
534 pcmcia_card_remove(p_dev->socket, p_dev);
535
536 /* detach the "instance" */
Dominik Brodowskif3990712005-11-14 21:25:23 +0100537 if (!p_drv)
538 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700539
Dominik Brodowskif3990712005-11-14 21:25:23 +0100540 if (p_drv->remove)
Dominik Brodowskicc3b4862005-11-14 21:23:14 +0100541 p_drv->remove(p_dev);
542
Dominik Brodowskia0aab142006-04-04 11:09:26 +0200543 p_dev->dev_node = NULL;
544
Dominik Brodowskif3990712005-11-14 21:25:23 +0100545 /* check for proper unloading */
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100546 if (p_dev->_irq || p_dev->_io || p_dev->_locked)
Dominik Brodowskif3990712005-11-14 21:25:23 +0100547 printk(KERN_INFO "pcmcia: driver %s did not release config properly\n",
548 p_drv->drv.name);
549
550 for (i = 0; i < MAX_WIN; i++)
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100551 if (p_dev->_win & CLIENT_WIN_REQ(i))
Dominik Brodowskif3990712005-11-14 21:25:23 +0100552 printk(KERN_INFO "pcmcia: driver %s did not release windows properly\n",
Dominik Brodowskicc3b4862005-11-14 21:23:14 +0100553 p_drv->drv.name);
554
Dominik Brodowskif3990712005-11-14 21:25:23 +0100555 /* references from pcmcia_probe_device */
556 pcmcia_put_dev(p_dev);
557 module_put(p_drv->owner);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700558
559 return 0;
560}
561
562
Dominik Brodowskicc3b4862005-11-14 21:23:14 +0100563/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564 * pcmcia_device_query -- determine information about a pcmcia device
565 */
566static int pcmcia_device_query(struct pcmcia_device *p_dev)
567{
568 cistpl_manfid_t manf_id;
569 cistpl_funcid_t func_id;
Ingo Molnar76fa82f2005-09-09 13:03:21 -0700570 cistpl_vers_1_t *vers1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700571 unsigned int i;
572
Ingo Molnar76fa82f2005-09-09 13:03:21 -0700573 vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL);
574 if (!vers1)
575 return -ENOMEM;
576
Linus Torvalds1da177e2005-04-16 15:20:36 -0700577 if (!pccard_read_tuple(p_dev->socket, p_dev->func,
578 CISTPL_MANFID, &manf_id)) {
579 p_dev->manf_id = manf_id.manf;
580 p_dev->card_id = manf_id.card;
581 p_dev->has_manf_id = 1;
582 p_dev->has_card_id = 1;
583 }
584
585 if (!pccard_read_tuple(p_dev->socket, p_dev->func,
586 CISTPL_FUNCID, &func_id)) {
587 p_dev->func_id = func_id.func;
588 p_dev->has_func_id = 1;
589 } else {
590 /* rule of thumb: cards with no FUNCID, but with
591 * common memory device geometry information, are
592 * probably memory cards (from pcmcia-cs) */
Ingo Molnar76fa82f2005-09-09 13:03:21 -0700593 cistpl_device_geo_t *devgeo;
594
595 devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL);
596 if (!devgeo) {
597 kfree(vers1);
598 return -ENOMEM;
599 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700600 if (!pccard_read_tuple(p_dev->socket, p_dev->func,
Ingo Molnar76fa82f2005-09-09 13:03:21 -0700601 CISTPL_DEVICE_GEO, devgeo)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700602 ds_dbg(0, "mem device geometry probably means "
603 "FUNCID_MEMORY\n");
604 p_dev->func_id = CISTPL_FUNCID_MEMORY;
605 p_dev->has_func_id = 1;
606 }
Ingo Molnar76fa82f2005-09-09 13:03:21 -0700607 kfree(devgeo);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700608 }
609
610 if (!pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_VERS_1,
Ingo Molnar76fa82f2005-09-09 13:03:21 -0700611 vers1)) {
612 for (i=0; i < vers1->ns; i++) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700613 char *tmp;
614 unsigned int length;
615
Ingo Molnar76fa82f2005-09-09 13:03:21 -0700616 tmp = vers1->str + vers1->ofs[i];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700617
618 length = strlen(tmp) + 1;
Janos Farkas6e3d4f22006-03-31 01:04:57 +0200619 if ((length < 2) || (length > 255))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700620 continue;
621
622 p_dev->prod_id[i] = kmalloc(sizeof(char) * length,
623 GFP_KERNEL);
624 if (!p_dev->prod_id[i])
625 continue;
626
627 p_dev->prod_id[i] = strncpy(p_dev->prod_id[i],
628 tmp, length);
629 }
630 }
631
Ingo Molnar76fa82f2005-09-09 13:03:21 -0700632 kfree(vers1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700633 return 0;
634}
635
636
637/* device_add_lock is needed to avoid double registration by cardmgr and kernel.
638 * Serializes pcmcia_device_add; will most likely be removed in future.
639 *
640 * While it has the caveat that adding new PCMCIA devices inside(!) device_register()
641 * won't work, this doesn't matter much at the moment: the driver core doesn't
642 * support it either.
643 */
Dominik Brodowski7fe908d2006-01-10 21:20:36 +0100644static DEFINE_MUTEX(device_add_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700645
Dominik Brodowskidc109492005-06-27 16:28:50 -0700646struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700647{
Dominik Brodowski360b65b2006-01-10 20:50:39 +0100648 struct pcmcia_device *p_dev, *tmp_dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700649 unsigned long flags;
Brice Goglinbd65a682005-09-09 13:03:29 -0700650 int bus_id_len;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651
Dominik Brodowskidc109492005-06-27 16:28:50 -0700652 s = pcmcia_get_socket(s);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653 if (!s)
654 return NULL;
655
Dominik Brodowski7fe908d2006-01-10 21:20:36 +0100656 mutex_lock(&device_add_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700657
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200658 ds_dbg(3, "adding device to %d, function %d\n", s->sock, function);
659
Dominik Brodowski6cf5be52006-11-27 21:03:48 -0500660 /* max of 4 devices per card */
661 if (s->device_count == 4)
Dominik Brodowski1ad275e2005-06-27 16:28:06 -0700662 goto err_put;
663
Dominik Brodowski8084b372005-12-11 21:18:26 +0100664 p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700665 if (!p_dev)
666 goto err_put;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667
Dominik Brodowskidc109492005-06-27 16:28:50 -0700668 p_dev->socket = s;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700669 p_dev->device_no = (s->device_count++);
670 p_dev->func = function;
671
672 p_dev->dev.bus = &pcmcia_bus_type;
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200673 p_dev->dev.parent = s->dev.parent;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700674 p_dev->dev.release = pcmcia_release_dev;
James Bottomley43d9f7f2007-10-16 01:23:58 -0700675 /* by default don't allow DMA */
676 p_dev->dma_mask = DMA_MASK_NONE;
677 p_dev->dev.dma_mask = &p_dev->dma_mask;
Brice Goglinbd65a682005-09-09 13:03:29 -0700678 bus_id_len = sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no);
679
680 p_dev->devname = kmalloc(6 + bus_id_len + 1, GFP_KERNEL);
681 if (!p_dev->devname)
682 goto err_free;
683 sprintf (p_dev->devname, "pcmcia%s", p_dev->dev.bus_id);
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200684 ds_dbg(3, "devname is %s\n", p_dev->devname);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700685
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686 spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
Dominik Brodowski360b65b2006-01-10 20:50:39 +0100687
688 /*
689 * p_dev->function_config must be the same for all card functions.
690 * Note that this is serialized by the device_add_lock, so that
691 * only one such struct will be created.
692 */
693 list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list)
694 if (p_dev->func == tmp_dev->func) {
695 p_dev->function_config = tmp_dev->function_config;
696 kref_get(&p_dev->function_config->ref);
697 }
698
699 /* Add to the list in pcmcia_bus_socket */
Komuro6171b882006-04-02 17:39:27 +0900700 list_add(&p_dev->socket_device_list, &s->devices_list);
Dominik Brodowski360b65b2006-01-10 20:50:39 +0100701
Linus Torvalds1da177e2005-04-16 15:20:36 -0700702 spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
703
Dominik Brodowski360b65b2006-01-10 20:50:39 +0100704 if (!p_dev->function_config) {
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200705 ds_dbg(3, "creating config_t for %s\n", p_dev->dev.bus_id);
Dominik Brodowski360b65b2006-01-10 20:50:39 +0100706 p_dev->function_config = kzalloc(sizeof(struct config_t),
707 GFP_KERNEL);
708 if (!p_dev->function_config)
709 goto err_unreg;
710 kref_init(&p_dev->function_config->ref);
711 }
712
Dominik Brodowski807277c2005-11-12 23:34:06 +0100713 printk(KERN_NOTICE "pcmcia: registering new device %s\n",
714 p_dev->devname);
715
Dominik Brodowski1ad275e2005-06-27 16:28:06 -0700716 pcmcia_device_query(p_dev);
717
Dominik Brodowski360b65b2006-01-10 20:50:39 +0100718 if (device_register(&p_dev->dev))
719 goto err_unreg;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700720
Dominik Brodowski7fe908d2006-01-10 21:20:36 +0100721 mutex_unlock(&device_add_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700722
723 return p_dev;
724
Dominik Brodowski360b65b2006-01-10 20:50:39 +0100725 err_unreg:
726 spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
727 list_del(&p_dev->socket_device_list);
728 spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
729
Linus Torvalds1da177e2005-04-16 15:20:36 -0700730 err_free:
Brice Goglinbd65a682005-09-09 13:03:29 -0700731 kfree(p_dev->devname);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700732 kfree(p_dev);
733 s->device_count--;
734 err_put:
Dominik Brodowski7fe908d2006-01-10 21:20:36 +0100735 mutex_unlock(&device_add_lock);
Dominik Brodowskidc109492005-06-27 16:28:50 -0700736 pcmcia_put_socket(s);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700737
738 return NULL;
739}
740
741
742static int pcmcia_card_add(struct pcmcia_socket *s)
743{
744 cisinfo_t cisinfo;
745 cistpl_longlink_mfc_t mfc;
746 unsigned int no_funcs, i;
747 int ret = 0;
748
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200749 if (!(s->resource_setup_done)) {
750 ds_dbg(3, "no resources available, delaying card_add\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700751 return -EAGAIN; /* try again, but later... */
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200752 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700753
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200754 if (pcmcia_validate_mem(s)) {
755 ds_dbg(3, "validating mem resources failed, "
756 "delaying card_add\n");
Dominik Brodowskide759142005-09-28 19:41:56 +0200757 return -EAGAIN; /* try again, but later... */
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200758 }
Dominik Brodowskide759142005-09-28 19:41:56 +0200759
Linus Torvalds1da177e2005-04-16 15:20:36 -0700760 ret = pccard_validate_cis(s, BIND_FN_ALL, &cisinfo);
761 if (ret || !cisinfo.Chains) {
762 ds_dbg(0, "invalid CIS or invalid resources\n");
763 return -ENODEV;
764 }
765
766 if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc))
767 no_funcs = mfc.nfn;
768 else
769 no_funcs = 1;
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500770 s->functions = no_funcs;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700771
Linus Torvalds1da177e2005-04-16 15:20:36 -0700772 for (i=0; i < no_funcs; i++)
Dominik Brodowskidc109492005-06-27 16:28:50 -0700773 pcmcia_device_add(s, i);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700774
775 return (ret);
776}
777
778
David Howells4796b712006-12-06 15:01:18 +0000779static void pcmcia_delayed_add_device(struct work_struct *work)
Dominik Brodowski1ad275e2005-06-27 16:28:06 -0700780{
David Howellsc4028952006-11-22 14:57:56 +0000781 struct pcmcia_socket *s =
782 container_of(work, struct pcmcia_socket, device_add);
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200783 ds_dbg(1, "adding additional device to %d\n", s->sock);
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500784 pcmcia_device_add(s, s->pcmcia_state.mfc_pfc);
Dominik Brodowskib5e43912005-06-27 16:28:50 -0700785 s->pcmcia_state.device_add_pending = 0;
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500786 s->pcmcia_state.mfc_pfc = 0;
Dominik Brodowski1ad275e2005-06-27 16:28:06 -0700787}
788
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700789static int pcmcia_requery(struct device *dev, void * _data)
Dominik Brodowskiff1fa9e2005-06-27 16:28:09 -0700790{
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700791 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200792 if (!p_dev->dev.driver) {
793 ds_dbg(1, "update device information for %s\n",
794 p_dev->dev.bus_id);
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700795 pcmcia_device_query(p_dev);
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200796 }
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700797
798 return 0;
799}
800
Dominik Brodowski4ae1cbf2006-11-03 10:54:00 -0500801static void pcmcia_bus_rescan(struct pcmcia_socket *skt, int new_cis)
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700802{
Dominik Brodowski4ae1cbf2006-11-03 10:54:00 -0500803 int no_devices = 0;
Dominik Brodowskif901b8c2006-10-25 19:56:55 -0400804 int ret = 0;
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700805 unsigned long flags;
806
Dominik Brodowski7fe908d2006-01-10 21:20:36 +0100807 /* must be called with skt_mutex held */
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200808 ds_dbg(0, "re-scanning socket %d\n", skt->sock);
809
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700810 spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
Dominik Brodowskidc109492005-06-27 16:28:50 -0700811 if (list_empty(&skt->devices_list))
Dominik Brodowski4ae1cbf2006-11-03 10:54:00 -0500812 no_devices = 1;
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700813 spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
814
Dominik Brodowski4ae1cbf2006-11-03 10:54:00 -0500815 /* If this is because of a CIS override, start over */
816 if (new_cis && !no_devices)
817 pcmcia_card_remove(skt, NULL);
818
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700819 /* if no devices were added for this socket yet because of
820 * missing resource information or other trouble, we need to
821 * do this now. */
Dominik Brodowski4ae1cbf2006-11-03 10:54:00 -0500822 if (no_devices || new_cis) {
Dominik Brodowskif901b8c2006-10-25 19:56:55 -0400823 ret = pcmcia_card_add(skt);
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700824 if (ret)
825 return;
826 }
827
828 /* some device information might have changed because of a CIS
829 * update or because we can finally read it correctly... so
830 * determine it again, overwriting old values if necessary. */
831 bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery);
832
833 /* we re-scan all devices, not just the ones connected to this
834 * socket. This does not matter, though. */
Dominik Brodowskif901b8c2006-10-25 19:56:55 -0400835 ret = bus_rescan_devices(&pcmcia_bus_type);
836 if (ret)
837 printk(KERN_INFO "pcmcia: bus_rescan_devices failed\n");
Dominik Brodowskiff1fa9e2005-06-27 16:28:09 -0700838}
Dominik Brodowski1ad275e2005-06-27 16:28:06 -0700839
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500840#ifdef CONFIG_PCMCIA_LOAD_CIS
841
842/**
843 * pcmcia_load_firmware - load CIS from userspace if device-provided is broken
Randy Dunlap78187862007-12-10 15:49:22 -0800844 * @dev: the pcmcia device which needs a CIS override
845 * @filename: requested filename in /lib/firmware/
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500846 *
847 * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if
848 * the one provided by the card is broken. The firmware files reside in
849 * /lib/firmware/ in userspace.
850 */
851static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename)
852{
853 struct pcmcia_socket *s = dev->socket;
854 const struct firmware *fw;
855 char path[20];
856 int ret = -ENOMEM;
857 int no_funcs;
858 int old_funcs;
859 cisdump_t *cis;
860 cistpl_longlink_mfc_t mfc;
861
862 if (!filename)
863 return -EINVAL;
864
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200865 ds_dbg(1, "trying to load CIS file %s\n", filename);
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500866
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200867 if (strlen(filename) > 14) {
Randy Dunlap52debb02008-02-04 22:27:38 -0800868 printk(KERN_WARNING "pcmcia: CIS filename is too long [%s]\n",
869 filename);
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500870 return -EINVAL;
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200871 }
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500872
Randy Dunlap52debb02008-02-04 22:27:38 -0800873 snprintf(path, sizeof(path), "%s", filename);
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500874
875 if (request_firmware(&fw, path, &dev->dev) == 0) {
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200876 if (fw->size >= CISTPL_MAX_CIS_SIZE) {
877 ret = -EINVAL;
878 printk(KERN_ERR "pcmcia: CIS override is too big\n");
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500879 goto release;
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200880 }
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500881
882 cis = kzalloc(sizeof(cisdump_t), GFP_KERNEL);
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200883 if (!cis) {
884 ret = -ENOMEM;
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500885 goto release;
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200886 }
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500887
888 cis->Length = fw->size + 1;
889 memcpy(cis->Data, fw->data, fw->size);
890
891 if (!pcmcia_replace_cis(s, cis))
892 ret = 0;
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200893 else {
894 printk(KERN_ERR "pcmcia: CIS override failed\n");
895 goto release;
896 }
897
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500898
899 /* update information */
900 pcmcia_device_query(dev);
901
902 /* does this cis override add or remove functions? */
903 old_funcs = s->functions;
904
905 if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc))
906 no_funcs = mfc.nfn;
907 else
908 no_funcs = 1;
909 s->functions = no_funcs;
910
911 if (old_funcs > no_funcs)
912 pcmcia_card_remove(s, dev);
913 else if (no_funcs > old_funcs)
914 pcmcia_add_device_later(s, 1);
915 }
916 release:
917 release_firmware(fw);
918
919 return (ret);
920}
921
922#else /* !CONFIG_PCMCIA_LOAD_CIS */
923
924static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename)
925{
926 return -ENODEV;
927}
928
929#endif
930
931
Dominik Brodowski1ad275e2005-06-27 16:28:06 -0700932static inline int pcmcia_devmatch(struct pcmcia_device *dev,
933 struct pcmcia_device_id *did)
934{
935 if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) {
936 if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id))
937 return 0;
938 }
939
940 if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) {
941 if ((!dev->has_card_id) || (dev->card_id != did->card_id))
942 return 0;
943 }
944
945 if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) {
946 if (dev->func != did->function)
947 return 0;
948 }
949
950 if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) {
951 if (!dev->prod_id[0])
952 return 0;
953 if (strcmp(did->prod_id[0], dev->prod_id[0]))
954 return 0;
955 }
956
957 if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) {
958 if (!dev->prod_id[1])
959 return 0;
960 if (strcmp(did->prod_id[1], dev->prod_id[1]))
961 return 0;
962 }
963
964 if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) {
965 if (!dev->prod_id[2])
966 return 0;
967 if (strcmp(did->prod_id[2], dev->prod_id[2]))
968 return 0;
969 }
970
971 if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) {
972 if (!dev->prod_id[3])
973 return 0;
974 if (strcmp(did->prod_id[3], dev->prod_id[3]))
975 return 0;
976 }
977
978 if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) {
Dominik Brodowski1ad275e2005-06-27 16:28:06 -0700979 if (dev->device_no != did->device_no)
980 return 0;
981 }
982
983 if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) {
984 if ((!dev->has_func_id) || (dev->func_id != did->func_id))
985 return 0;
986
987 /* if this is a pseudo-multi-function device,
988 * we need explicit matches */
989 if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO)
990 return 0;
991 if (dev->device_no)
992 return 0;
993
994 /* also, FUNC_ID matching needs to be activated by userspace
995 * after it has re-checked that there is no possible module
996 * with a prod_id/manf_id/card_id match.
997 */
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200998 ds_dbg(0, "skipping FUNC_ID match for %s until userspace "
999 "interaction\n", dev->dev.bus_id);
Dominik Brodowski1ad275e2005-06-27 16:28:06 -07001000 if (!dev->allow_func_id_match)
1001 return 0;
1002 }
1003
Dominik Brodowskiea7b3882005-06-27 16:28:07 -07001004 if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) {
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001005 ds_dbg(0, "device %s needs a fake CIS\n", dev->dev.bus_id);
Dominik Brodowskidaa95172005-06-27 16:28:14 -07001006 if (!dev->socket->fake_cis)
1007 pcmcia_load_firmware(dev, did->cisfile);
1008
1009 if (!dev->socket->fake_cis)
Dominik Brodowskiea7b3882005-06-27 16:28:07 -07001010 return 0;
Dominik Brodowskiea7b3882005-06-27 16:28:07 -07001011 }
1012
Dominik Brodowskif602ff72005-06-27 16:28:09 -07001013 if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) {
1014 int i;
1015 for (i=0; i<4; i++)
1016 if (dev->prod_id[i])
1017 return 0;
1018 if (dev->has_manf_id || dev->has_card_id || dev->has_func_id)
1019 return 0;
1020 }
1021
Dominik Brodowski1ad275e2005-06-27 16:28:06 -07001022 dev->dev.driver_data = (void *) did;
1023
1024 return 1;
1025}
1026
1027
Linus Torvalds1da177e2005-04-16 15:20:36 -07001028static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) {
1029 struct pcmcia_device * p_dev = to_pcmcia_dev(dev);
1030 struct pcmcia_driver * p_drv = to_pcmcia_drv(drv);
Dominik Brodowski1ad275e2005-06-27 16:28:06 -07001031 struct pcmcia_device_id *did = p_drv->id_table;
Bernhard Walle6179b552007-05-06 14:48:44 -07001032 struct pcmcia_dynid *dynid;
1033
1034 /* match dynamic devices first */
1035 spin_lock(&p_drv->dynids.lock);
1036 list_for_each_entry(dynid, &p_drv->dynids.list, node) {
1037 ds_dbg(3, "trying to match %s to %s\n", dev->bus_id,
1038 drv->name);
1039 if (pcmcia_devmatch(p_dev, &dynid->id)) {
1040 ds_dbg(0, "matched %s to %s\n", dev->bus_id,
1041 drv->name);
1042 spin_unlock(&p_drv->dynids.lock);
1043 return 1;
1044 }
1045 }
1046 spin_unlock(&p_drv->dynids.lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047
Dominik Brodowski0e0fad82006-01-15 01:14:31 +01001048#ifdef CONFIG_PCMCIA_IOCTL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001049 /* matching by cardmgr */
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001050 if (p_dev->cardmgr == p_drv) {
1051 ds_dbg(0, "cardmgr matched %s to %s\n", dev->bus_id,
1052 drv->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001053 return 1;
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001054 }
Dominik Brodowski0e0fad82006-01-15 01:14:31 +01001055#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001056
Dominik Brodowski1ad275e2005-06-27 16:28:06 -07001057 while (did && did->match_flags) {
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001058 ds_dbg(3, "trying to match %s to %s\n", dev->bus_id,
1059 drv->name);
1060 if (pcmcia_devmatch(p_dev, did)) {
1061 ds_dbg(0, "matched %s to %s\n", dev->bus_id,
1062 drv->name);
Dominik Brodowski1ad275e2005-06-27 16:28:06 -07001063 return 1;
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001064 }
Dominik Brodowski1ad275e2005-06-27 16:28:06 -07001065 did++;
1066 }
1067
Linus Torvalds1da177e2005-04-16 15:20:36 -07001068 return 0;
1069}
1070
Dominik Brodowski840c2ac2005-06-27 16:28:04 -07001071#ifdef CONFIG_HOTPLUG
1072
Kay Sievers7eff2e72007-08-14 15:15:12 +02001073static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
Dominik Brodowski840c2ac2005-06-27 16:28:04 -07001074{
1075 struct pcmcia_device *p_dev;
Kay Sievers7eff2e72007-08-14 15:15:12 +02001076 int i;
Dominik Brodowski840c2ac2005-06-27 16:28:04 -07001077 u32 hash[4] = { 0, 0, 0, 0};
1078
1079 if (!dev)
1080 return -ENODEV;
1081
1082 p_dev = to_pcmcia_dev(dev);
1083
1084 /* calculate hashes */
1085 for (i=0; i<4; i++) {
1086 if (!p_dev->prod_id[i])
1087 continue;
1088 hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i]));
1089 }
1090
Kay Sievers7eff2e72007-08-14 15:15:12 +02001091 if (add_uevent_var(env, "SOCKET_NO=%u", p_dev->socket->sock))
Dominik Brodowski840c2ac2005-06-27 16:28:04 -07001092 return -ENOMEM;
1093
Kay Sievers7eff2e72007-08-14 15:15:12 +02001094 if (add_uevent_var(env, "DEVICE_NO=%02X", p_dev->device_no))
Dominik Brodowski840c2ac2005-06-27 16:28:04 -07001095 return -ENOMEM;
1096
Kay Sievers7eff2e72007-08-14 15:15:12 +02001097 if (add_uevent_var(env, "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X"
Kay Sievers312c0042005-11-16 09:00:00 +01001098 "pa%08Xpb%08Xpc%08Xpd%08X",
1099 p_dev->has_manf_id ? p_dev->manf_id : 0,
1100 p_dev->has_card_id ? p_dev->card_id : 0,
1101 p_dev->has_func_id ? p_dev->func_id : 0,
1102 p_dev->func,
1103 p_dev->device_no,
1104 hash[0],
1105 hash[1],
1106 hash[2],
1107 hash[3]))
Dominik Brodowski840c2ac2005-06-27 16:28:04 -07001108 return -ENOMEM;
1109
Dominik Brodowski840c2ac2005-06-27 16:28:04 -07001110 return 0;
1111}
1112
1113#else
1114
Kay Sievers7eff2e72007-08-14 15:15:12 +02001115static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
Dominik Brodowski840c2ac2005-06-27 16:28:04 -07001116{
1117 return -ENODEV;
1118}
1119
1120#endif
1121
Alan Stern3f8df782007-07-12 16:57:22 -04001122/************************ runtime PM support ***************************/
1123
1124static int pcmcia_dev_suspend(struct device *dev, pm_message_t state);
1125static int pcmcia_dev_resume(struct device *dev);
1126
1127static int runtime_suspend(struct device *dev)
1128{
1129 int rc;
1130
1131 down(&dev->sem);
1132 rc = pcmcia_dev_suspend(dev, PMSG_SUSPEND);
1133 up(&dev->sem);
Alan Stern3f8df782007-07-12 16:57:22 -04001134 return rc;
1135}
1136
1137static void runtime_resume(struct device *dev)
1138{
1139 int rc;
1140
1141 down(&dev->sem);
1142 rc = pcmcia_dev_resume(dev);
1143 up(&dev->sem);
Alan Stern3f8df782007-07-12 16:57:22 -04001144}
1145
Linus Torvalds1da177e2005-04-16 15:20:36 -07001146/************************ per-device sysfs output ***************************/
1147
1148#define pcmcia_device_attr(field, test, format) \
Yani Ioannoue404e272005-05-17 06:42:58 -04001149static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001150{ \
1151 struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \
1152 return p_dev->test ? sprintf (buf, format, p_dev->field) : -ENODEV; \
1153}
1154
1155#define pcmcia_device_stringattr(name, field) \
Yani Ioannoue404e272005-05-17 06:42:58 -04001156static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001157{ \
1158 struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \
1159 return p_dev->field ? sprintf (buf, "%s\n", p_dev->field) : -ENODEV; \
1160}
1161
1162pcmcia_device_attr(func, socket, "0x%02x\n");
1163pcmcia_device_attr(func_id, has_func_id, "0x%02x\n");
1164pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n");
1165pcmcia_device_attr(card_id, has_card_id, "0x%04x\n");
1166pcmcia_device_stringattr(prod_id1, prod_id[0]);
1167pcmcia_device_stringattr(prod_id2, prod_id[1]);
1168pcmcia_device_stringattr(prod_id3, prod_id[2]);
1169pcmcia_device_stringattr(prod_id4, prod_id[3]);
1170
Dominik Brodowskidb1019c2006-01-10 19:19:37 +01001171
1172static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf)
1173{
1174 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
1175
Dominik Brodowskif6fbe012006-01-20 15:10:23 +01001176 if (p_dev->suspended)
Dominik Brodowskidb1019c2006-01-10 19:19:37 +01001177 return sprintf(buf, "off\n");
1178 else
1179 return sprintf(buf, "on\n");
1180}
1181
1182static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr,
1183 const char *buf, size_t count)
1184{
1185 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
1186 int ret = 0;
1187
1188 if (!count)
1189 return -EINVAL;
1190
Dominik Brodowskif6fbe012006-01-20 15:10:23 +01001191 if ((!p_dev->suspended) && !strncmp(buf, "off", 3))
Alan Stern3f8df782007-07-12 16:57:22 -04001192 ret = runtime_suspend(dev);
Dominik Brodowskif6fbe012006-01-20 15:10:23 +01001193 else if (p_dev->suspended && !strncmp(buf, "on", 2))
Alan Stern3f8df782007-07-12 16:57:22 -04001194 runtime_resume(dev);
Dominik Brodowskidb1019c2006-01-10 19:19:37 +01001195
1196 return ret ? ret : count;
1197}
1198
1199
Dominik Brodowski37045112005-06-30 02:58:47 -07001200static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
Dominik Brodowski3248ff42005-06-27 16:29:01 -07001201{
1202 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
1203 int i;
1204 u32 hash[4] = { 0, 0, 0, 0};
Dominik Brodowskia5b55772005-06-27 16:28:10 -07001205
Dominik Brodowski3248ff42005-06-27 16:29:01 -07001206 /* calculate hashes */
1207 for (i=0; i<4; i++) {
1208 if (!p_dev->prod_id[i])
1209 continue;
1210 hash[i] = crc32(0,p_dev->prod_id[i],strlen(p_dev->prod_id[i]));
1211 }
1212 return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X"
1213 "pa%08Xpb%08Xpc%08Xpd%08X\n",
1214 p_dev->has_manf_id ? p_dev->manf_id : 0,
1215 p_dev->has_card_id ? p_dev->card_id : 0,
1216 p_dev->has_func_id ? p_dev->func_id : 0,
1217 p_dev->func, p_dev->device_no,
1218 hash[0], hash[1], hash[2], hash[3]);
1219}
1220
1221static ssize_t pcmcia_store_allow_func_id_match(struct device *dev,
1222 struct device_attribute *attr, const char *buf, size_t count)
Dominik Brodowskia5b55772005-06-27 16:28:10 -07001223{
1224 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
Dominik Brodowskif901b8c2006-10-25 19:56:55 -04001225 int ret;
Dominik Brodowskidb1019c2006-01-10 19:19:37 +01001226
1227 if (!count)
1228 return -EINVAL;
Dominik Brodowskia5b55772005-06-27 16:28:10 -07001229
Dominik Brodowski7fe908d2006-01-10 21:20:36 +01001230 mutex_lock(&p_dev->socket->skt_mutex);
Dominik Brodowskia5b55772005-06-27 16:28:10 -07001231 p_dev->allow_func_id_match = 1;
Dominik Brodowski7fe908d2006-01-10 21:20:36 +01001232 mutex_unlock(&p_dev->socket->skt_mutex);
Dominik Brodowskia5b55772005-06-27 16:28:10 -07001233
Dominik Brodowskif901b8c2006-10-25 19:56:55 -04001234 ret = bus_rescan_devices(&pcmcia_bus_type);
1235 if (ret)
1236 printk(KERN_INFO "pcmcia: bus_rescan_devices failed after "
1237 "allowing func_id matches\n");
Dominik Brodowskia5b55772005-06-27 16:28:10 -07001238
1239 return count;
1240}
1241
Linus Torvalds1da177e2005-04-16 15:20:36 -07001242static struct device_attribute pcmcia_dev_attrs[] = {
1243 __ATTR(function, 0444, func_show, NULL),
Dominik Brodowskidb1019c2006-01-10 19:19:37 +01001244 __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001245 __ATTR_RO(func_id),
1246 __ATTR_RO(manf_id),
1247 __ATTR_RO(card_id),
1248 __ATTR_RO(prod_id1),
1249 __ATTR_RO(prod_id2),
1250 __ATTR_RO(prod_id3),
1251 __ATTR_RO(prod_id4),
Dominik Brodowski3248ff42005-06-27 16:29:01 -07001252 __ATTR_RO(modalias),
Dominik Brodowskia5b55772005-06-27 16:28:10 -07001253 __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001254 __ATTR_NULL,
1255};
1256
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001257/* PM support, also needed for reset */
1258
1259static int pcmcia_dev_suspend(struct device * dev, pm_message_t state)
1260{
1261 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
1262 struct pcmcia_driver *p_drv = NULL;
Dominik Brodowskif6fbe012006-01-20 15:10:23 +01001263 int ret = 0;
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001264
David Brownelld6b4fa62008-02-04 22:27:37 -08001265 if (p_dev->suspended)
1266 return 0;
1267
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001268 ds_dbg(2, "suspending %s\n", dev->bus_id);
1269
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001270 if (dev->driver)
1271 p_drv = to_pcmcia_drv(dev->driver);
1272
Dominik Brodowskie2d40962006-03-02 00:09:29 +01001273 if (!p_drv)
1274 goto out;
1275
1276 if (p_drv->suspend) {
Dominik Brodowski8661bb52006-03-02 00:02:33 +01001277 ret = p_drv->suspend(p_dev);
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001278 if (ret) {
1279 printk(KERN_ERR "pcmcia: device %s (driver %s) did "
1280 "not want to go to sleep (%d)\n",
1281 p_dev->devname, p_drv->drv.name, ret);
Dominik Brodowskif6fbe012006-01-20 15:10:23 +01001282 goto out;
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001283 }
Dominik Brodowski8661bb52006-03-02 00:02:33 +01001284 }
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001285
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001286 if (p_dev->device_no == p_dev->func) {
1287 ds_dbg(2, "releasing configuration for %s\n", dev->bus_id);
Dominik Brodowskie2d40962006-03-02 00:09:29 +01001288 pcmcia_release_configuration(p_dev);
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001289 }
Dominik Brodowskie2d40962006-03-02 00:09:29 +01001290
Dominik Brodowskif6fbe012006-01-20 15:10:23 +01001291 out:
1292 if (!ret)
1293 p_dev->suspended = 1;
1294 return ret;
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001295}
1296
1297
1298static int pcmcia_dev_resume(struct device * dev)
1299{
1300 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
1301 struct pcmcia_driver *p_drv = NULL;
Dominik Brodowskif6fbe012006-01-20 15:10:23 +01001302 int ret = 0;
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001303
David Brownelld6b4fa62008-02-04 22:27:37 -08001304 if (!p_dev->suspended)
1305 return 0;
1306
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001307 ds_dbg(2, "resuming %s\n", dev->bus_id);
1308
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001309 if (dev->driver)
1310 p_drv = to_pcmcia_drv(dev->driver);
1311
Dominik Brodowskie2d40962006-03-02 00:09:29 +01001312 if (!p_drv)
1313 goto out;
1314
1315 if (p_dev->device_no == p_dev->func) {
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001316 ds_dbg(2, "requesting configuration for %s\n", dev->bus_id);
Dominik Brodowskie2d40962006-03-02 00:09:29 +01001317 ret = pcmcia_request_configuration(p_dev, &p_dev->conf);
1318 if (ret)
1319 goto out;
Dominik Brodowski8661bb52006-03-02 00:02:33 +01001320 }
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001321
Dominik Brodowskie2d40962006-03-02 00:09:29 +01001322 if (p_drv->resume)
1323 ret = p_drv->resume(p_dev);
1324
Dominik Brodowskif6fbe012006-01-20 15:10:23 +01001325 out:
1326 if (!ret)
1327 p_dev->suspended = 0;
1328 return ret;
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001329}
1330
1331
1332static int pcmcia_bus_suspend_callback(struct device *dev, void * _data)
1333{
1334 struct pcmcia_socket *skt = _data;
1335 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
1336
Alan Stern3f8df782007-07-12 16:57:22 -04001337 if (p_dev->socket != skt || p_dev->suspended)
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001338 return 0;
1339
Alan Stern3f8df782007-07-12 16:57:22 -04001340 return runtime_suspend(dev);
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001341}
1342
1343static int pcmcia_bus_resume_callback(struct device *dev, void * _data)
1344{
1345 struct pcmcia_socket *skt = _data;
1346 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
1347
Alan Stern3f8df782007-07-12 16:57:22 -04001348 if (p_dev->socket != skt || !p_dev->suspended)
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001349 return 0;
1350
Alan Stern3f8df782007-07-12 16:57:22 -04001351 runtime_resume(dev);
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001352
1353 return 0;
1354}
1355
1356static int pcmcia_bus_resume(struct pcmcia_socket *skt)
1357{
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001358 ds_dbg(2, "resuming socket %d\n", skt->sock);
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001359 bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback);
1360 return 0;
1361}
1362
1363static int pcmcia_bus_suspend(struct pcmcia_socket *skt)
1364{
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001365 ds_dbg(2, "suspending socket %d\n", skt->sock);
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001366 if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt,
1367 pcmcia_bus_suspend_callback)) {
1368 pcmcia_bus_resume(skt);
1369 return -EIO;
1370 }
1371 return 0;
1372}
1373
Linus Torvalds1da177e2005-04-16 15:20:36 -07001374
1375/*======================================================================
1376
Linus Torvalds1da177e2005-04-16 15:20:36 -07001377 The card status event handler.
1378
1379======================================================================*/
1380
Linus Torvalds1da177e2005-04-16 15:20:36 -07001381/* Normally, the event is passed to individual drivers after
1382 * informing userspace. Only for CS_EVENT_CARD_REMOVAL this
1383 * is inversed to maintain historic compatibility.
1384 */
1385
1386static int ds_event(struct pcmcia_socket *skt, event_t event, int priority)
1387{
Dominik Brodowskidc109492005-06-27 16:28:50 -07001388 struct pcmcia_socket *s = pcmcia_get_socket(skt);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001389
Florin Malita16174062006-05-24 21:21:31 -04001390 if (!s) {
1391 printk(KERN_ERR "PCMCIA obtaining reference to socket %p " \
1392 "failed, event 0x%x lost!\n", skt, event);
1393 return -ENODEV;
1394 }
1395
Linus Torvalds1da177e2005-04-16 15:20:36 -07001396 ds_dbg(1, "ds_event(0x%06x, %d, 0x%p)\n",
Dominik Brodowskidc109492005-06-27 16:28:50 -07001397 event, priority, skt);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001398
Dominik Brodowskif8cfa612005-11-14 21:25:51 +01001399 switch (event) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001400 case CS_EVENT_CARD_REMOVAL:
Dominik Brodowskib5e43912005-06-27 16:28:50 -07001401 s->pcmcia_state.present = 0;
Dominik Brodowskid6ff5a82006-02-05 09:51:34 +01001402 pcmcia_card_remove(skt, NULL);
Dominik Brodowskidc109492005-06-27 16:28:50 -07001403 handle_event(skt, event);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001404 break;
Dominik Brodowskif8cfa612005-11-14 21:25:51 +01001405
Linus Torvalds1da177e2005-04-16 15:20:36 -07001406 case CS_EVENT_CARD_INSERTION:
Dominik Brodowskib5e43912005-06-27 16:28:50 -07001407 s->pcmcia_state.present = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001408 pcmcia_card_add(skt);
Dominik Brodowskidc109492005-06-27 16:28:50 -07001409 handle_event(skt, event);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001410 break;
1411
1412 case CS_EVENT_EJECTION_REQUEST:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001413 break;
1414
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001415 case CS_EVENT_PM_SUSPEND:
1416 case CS_EVENT_PM_RESUME:
1417 case CS_EVENT_RESET_PHYSICAL:
1418 case CS_EVENT_CARD_RESET:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001419 default:
Dominik Brodowskidc109492005-06-27 16:28:50 -07001420 handle_event(skt, event);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001421 break;
1422 }
1423
Dominik Brodowskidc109492005-06-27 16:28:50 -07001424 pcmcia_put_socket(s);
1425
Linus Torvalds1da177e2005-04-16 15:20:36 -07001426 return 0;
1427} /* ds_event */
1428
1429
Dominik Brodowski9940ec32006-03-05 11:04:33 +01001430struct pcmcia_device * pcmcia_dev_present(struct pcmcia_device *_p_dev)
1431{
1432 struct pcmcia_device *p_dev;
1433 struct pcmcia_device *ret = NULL;
1434
1435 p_dev = pcmcia_get_dev(_p_dev);
1436 if (!p_dev)
1437 return NULL;
1438
1439 if (!p_dev->socket->pcmcia_state.present)
1440 goto out;
1441
1442 if (p_dev->_removed)
1443 goto out;
1444
1445 if (p_dev->suspended)
1446 goto out;
1447
1448 ret = p_dev;
1449 out:
1450 pcmcia_put_dev(p_dev);
1451 return ret;
1452}
1453EXPORT_SYMBOL(pcmcia_dev_present);
1454
1455
Dominik Brodowski90c6cdd2005-06-27 16:28:49 -07001456static struct pcmcia_callback pcmcia_bus_callback = {
1457 .owner = THIS_MODULE,
1458 .event = ds_event,
1459 .requery = pcmcia_bus_rescan,
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001460 .suspend = pcmcia_bus_suspend,
1461 .resume = pcmcia_bus_resume,
Dominik Brodowski90c6cdd2005-06-27 16:28:49 -07001462};
1463
Greg Kroah-Hartman87373312006-09-12 17:00:10 +02001464static int __devinit pcmcia_bus_add_socket(struct device *dev,
Dmitry Torokhovd8539d82005-09-15 02:01:36 -05001465 struct class_interface *class_intf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001466{
Greg Kroah-Hartman87373312006-09-12 17:00:10 +02001467 struct pcmcia_socket *socket = dev_get_drvdata(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001468 int ret;
1469
Dominik Brodowskidc109492005-06-27 16:28:50 -07001470 socket = pcmcia_get_socket(socket);
1471 if (!socket) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472 printk(KERN_ERR "PCMCIA obtaining reference to socket %p failed\n", socket);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001473 return -ENODEV;
1474 }
1475
Linus Torvalds1da177e2005-04-16 15:20:36 -07001476 /*
1477 * Ugly. But we want to wait for the socket threads to have started up.
1478 * We really should let the drivers themselves drive some of this..
1479 */
1480 msleep(250);
1481
Dominik Brodowskie7a480d2005-06-27 16:28:47 -07001482#ifdef CONFIG_PCMCIA_IOCTL
Dominik Brodowskidc109492005-06-27 16:28:50 -07001483 init_waitqueue_head(&socket->queue);
Dominik Brodowskie7a480d2005-06-27 16:28:47 -07001484#endif
Dominik Brodowskidc109492005-06-27 16:28:50 -07001485 INIT_LIST_HEAD(&socket->devices_list);
David Howells4796b712006-12-06 15:01:18 +00001486 INIT_WORK(&socket->device_add, pcmcia_delayed_add_device);
Dominik Brodowskidc109492005-06-27 16:28:50 -07001487 memset(&socket->pcmcia_state, 0, sizeof(u8));
1488 socket->device_count = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001489
Dominik Brodowski90c6cdd2005-06-27 16:28:49 -07001490 ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001491 if (ret) {
1492 printk(KERN_ERR "PCMCIA registration PCCard core failed for socket %p\n", socket);
Dominik Brodowskidc109492005-06-27 16:28:50 -07001493 pcmcia_put_socket(socket);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001494 return (ret);
1495 }
1496
1497 return 0;
1498}
1499
Greg Kroah-Hartman87373312006-09-12 17:00:10 +02001500static void pcmcia_bus_remove_socket(struct device *dev,
Dmitry Torokhovd8539d82005-09-15 02:01:36 -05001501 struct class_interface *class_intf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001502{
Greg Kroah-Hartman87373312006-09-12 17:00:10 +02001503 struct pcmcia_socket *socket = dev_get_drvdata(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001504
Dominik Brodowskidc109492005-06-27 16:28:50 -07001505 if (!socket)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001506 return;
1507
Dominik Brodowskidc109492005-06-27 16:28:50 -07001508 socket->pcmcia_state.dead = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001509 pccard_register_pcmcia(socket, NULL);
1510
Daniel Ritzdfbc9e92006-11-18 22:19:34 -08001511 /* unregister any unbound devices */
Daniel Ritz8e4d9dc2006-11-25 11:09:17 -08001512 mutex_lock(&socket->skt_mutex);
Daniel Ritzdfbc9e92006-11-18 22:19:34 -08001513 pcmcia_card_remove(socket, NULL);
Daniel Ritz8e4d9dc2006-11-25 11:09:17 -08001514 mutex_unlock(&socket->skt_mutex);
Daniel Ritzdfbc9e92006-11-18 22:19:34 -08001515
Dominik Brodowskidc109492005-06-27 16:28:50 -07001516 pcmcia_put_socket(socket);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001517
1518 return;
1519}
1520
1521
1522/* the pcmcia_bus_interface is used to handle pcmcia socket devices */
1523static struct class_interface pcmcia_bus_interface = {
1524 .class = &pcmcia_socket_class,
Greg Kroah-Hartman87373312006-09-12 17:00:10 +02001525 .add_dev = &pcmcia_bus_add_socket,
1526 .remove_dev = &pcmcia_bus_remove_socket,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001527};
1528
1529
Dominik Brodowskie7a480d2005-06-27 16:28:47 -07001530struct bus_type pcmcia_bus_type = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001531 .name = "pcmcia",
Kay Sievers312c0042005-11-16 09:00:00 +01001532 .uevent = pcmcia_bus_uevent,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001533 .match = pcmcia_bus_match,
1534 .dev_attrs = pcmcia_dev_attrs,
Russell King1d0baa32006-01-05 14:40:58 +00001535 .probe = pcmcia_device_probe,
1536 .remove = pcmcia_device_remove,
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001537 .suspend = pcmcia_dev_suspend,
1538 .resume = pcmcia_dev_resume,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001539};
Linus Torvalds1da177e2005-04-16 15:20:36 -07001540
1541
1542static int __init init_pcmcia_bus(void)
1543{
Randy Dunlapace7d472006-10-20 14:44:12 -07001544 int ret;
1545
Linus Torvalds1da177e2005-04-16 15:20:36 -07001546 spin_lock_init(&pcmcia_dev_list_lock);
1547
Randy Dunlapace7d472006-10-20 14:44:12 -07001548 ret = bus_register(&pcmcia_bus_type);
1549 if (ret < 0) {
1550 printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret);
1551 return ret;
1552 }
1553 ret = class_interface_register(&pcmcia_bus_interface);
1554 if (ret < 0) {
1555 printk(KERN_WARNING
1556 "pcmcia: class_interface_register error: %d\n", ret);
1557 bus_unregister(&pcmcia_bus_type);
1558 return ret;
1559 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001560
Dominik Brodowskie7a480d2005-06-27 16:28:47 -07001561 pcmcia_setup_ioctl();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001562
1563 return 0;
1564}
1565fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that
1566 * pcmcia_socket_class is already registered */
1567
1568
1569static void __exit exit_pcmcia_bus(void)
1570{
Dominik Brodowskie7a480d2005-06-27 16:28:47 -07001571 pcmcia_cleanup_ioctl();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001572
Dominik Brodowskie7a480d2005-06-27 16:28:47 -07001573 class_interface_unregister(&pcmcia_bus_interface);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001574
1575 bus_unregister(&pcmcia_bus_type);
1576}
1577module_exit(exit_pcmcia_bus);
1578
1579
Linus Torvalds1da177e2005-04-16 15:20:36 -07001580MODULE_ALIAS("ds");