blob: 4174d9656e357f8ec5f16520ad03c86544a5e969 [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#include <pcmcia/cs_types.h>
29#include <pcmcia/cs.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070030#include <pcmcia/cistpl.h>
31#include <pcmcia/ds.h>
32#include <pcmcia/ss.h>
33
34#include "cs_internal.h"
Dominik Brodowskie7a480d2005-06-27 16:28:47 -070035#include "ds_internal.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070036
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
Dominik Brodowskie7a480d2005-06-27 16:28:47 -070046int ds_pc_debug;
Linus Torvalds1da177e2005-04-16 15:20:36 -070047
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
Dominik Brodowskie7a480d2005-06-27 16:28:47 -070058spinlock_t pcmcia_dev_list_lock;
Linus Torvalds1da177e2005-04-16 15:20:36 -070059
Linus Torvalds1da177e2005-04-16 15:20:36 -070060/*====================================================================*/
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
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700159static int pcmcia_report_error(struct pcmcia_device *p_dev, error_info_t *err)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700160{
161 int i;
162 char *serv;
163
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700164 if (!p_dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165 printk(KERN_NOTICE);
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700166 else
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167 printk(KERN_NOTICE "%s: ", p_dev->dev.bus_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168
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 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187
188/* end of code which was in cs.c before */
189
190/*======================================================================*/
191
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700192void cs_error(struct pcmcia_device *p_dev, int func, int ret)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193{
194 error_info_t err = { func, ret };
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700195 pcmcia_report_error(p_dev, &err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196}
197EXPORT_SYMBOL(cs_error);
198
Dominik Brodowski23a83bf2005-06-27 16:28:07 -0700199
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
Dominik Brodowskif8cfa612005-11-14 21:25:51 +0100206 if (!p_drv->probe || !p_drv->remove)
Pavel Roskinba5bb6b2005-07-28 01:07:20 -0700207 printk(KERN_DEBUG "pcmcia: %s lacks a requisite callback "
208 "function\n", p_drv->drv.name);
Dominik Brodowski1e212f32005-07-07 17:59:00 -0700209
Dominik Brodowski23a83bf2005-06-27 16:28:07 -0700210 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);
Dominik Brodowski5085cb22005-06-27 16:28:45 -0700223 printk(KERN_DEBUG "pcmcia: see "
224 "Documentation/pcmcia/devicetable.txt for "
225 "details\n");
Dominik Brodowski23a83bf2005-06-27 16:28:07 -0700226 }
227 did++;
228 }
229
230 return;
231}
232
Dominik Brodowskidaa95172005-06-27 16:28:14 -0700233
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234/*======================================================================*/
235
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236
Bernhard Walle6179b552007-05-06 14:48:44 -0700237struct pcmcia_dynid {
238 struct list_head node;
239 struct pcmcia_device_id id;
240};
241
242/**
243 * pcmcia_store_new_id - add a new PCMCIA device ID to this driver and re-probe devices
244 * @driver: target device driver
245 * @buf: buffer for scanning device ID data
246 * @count: input size
247 *
248 * Adds a new dynamic PCMCIA device ID to this driver,
249 * and causes the driver to probe for all devices again.
250 */
251static ssize_t
252pcmcia_store_new_id(struct device_driver *driver, const char *buf, size_t count)
253{
254 struct pcmcia_dynid *dynid;
255 struct pcmcia_driver *pdrv = to_pcmcia_drv(driver);
256 __u16 match_flags, manf_id, card_id;
257 __u8 func_id, function, device_no;
258 __u32 prod_id_hash[4] = {0, 0, 0, 0};
259 int fields=0;
260 int retval = 0;
261
262 fields = sscanf(buf, "%hx %hx %hx %hhx %hhx %hhx %x %x %x %x",
263 &match_flags, &manf_id, &card_id, &func_id, &function, &device_no,
264 &prod_id_hash[0], &prod_id_hash[1], &prod_id_hash[2], &prod_id_hash[3]);
265 if (fields < 6)
266 return -EINVAL;
267
268 dynid = kzalloc(sizeof(struct pcmcia_dynid), GFP_KERNEL);
269 if (!dynid)
270 return -ENOMEM;
271
272 INIT_LIST_HEAD(&dynid->node);
273 dynid->id.match_flags = match_flags;
274 dynid->id.manf_id = manf_id;
275 dynid->id.card_id = card_id;
276 dynid->id.func_id = func_id;
277 dynid->id.function = function;
278 dynid->id.device_no = device_no;
279 memcpy(dynid->id.prod_id_hash, prod_id_hash, sizeof(__u32) * 4);
280
281 spin_lock(&pdrv->dynids.lock);
282 list_add_tail(&pdrv->dynids.list, &dynid->node);
283 spin_unlock(&pdrv->dynids.lock);
284
285 if (get_driver(&pdrv->drv)) {
286 retval = driver_attach(&pdrv->drv);
287 put_driver(&pdrv->drv);
288 }
289
290 if (retval)
291 return retval;
292 return count;
293}
294static DRIVER_ATTR(new_id, S_IWUSR, NULL, pcmcia_store_new_id);
295
296static void
297pcmcia_free_dynids(struct pcmcia_driver *drv)
298{
299 struct pcmcia_dynid *dynid, *n;
300
301 spin_lock(&drv->dynids.lock);
302 list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) {
303 list_del(&dynid->node);
304 kfree(dynid);
305 }
306 spin_unlock(&drv->dynids.lock);
307}
308
309static int
310pcmcia_create_newid_file(struct pcmcia_driver *drv)
311{
312 int error = 0;
313 if (drv->probe != NULL)
Greg Kroah-Hartman2344c6d2007-11-28 12:23:18 -0800314 error = driver_create_file(&drv->drv, &driver_attr_new_id);
Bernhard Walle6179b552007-05-06 14:48:44 -0700315 return error;
316}
317
318
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319/**
320 * pcmcia_register_driver - register a PCMCIA driver with the bus core
Randy Dunlap78187862007-12-10 15:49:22 -0800321 * @driver: the &driver being registered
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322 *
323 * Registers a PCMCIA driver with the PCMCIA bus core.
324 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325int pcmcia_register_driver(struct pcmcia_driver *driver)
326{
Bernhard Walle6179b552007-05-06 14:48:44 -0700327 int error;
328
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329 if (!driver)
330 return -EINVAL;
331
Dominik Brodowski23a83bf2005-06-27 16:28:07 -0700332 pcmcia_check_driver(driver);
333
Linus Torvalds1da177e2005-04-16 15:20:36 -0700334 /* initialize common fields */
335 driver->drv.bus = &pcmcia_bus_type;
336 driver->drv.owner = driver->owner;
Bernhard Walle6179b552007-05-06 14:48:44 -0700337 spin_lock_init(&driver->dynids.lock);
338 INIT_LIST_HEAD(&driver->dynids.list);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200340 ds_dbg(3, "registering driver %s\n", driver->drv.name);
341
Bernhard Walle6179b552007-05-06 14:48:44 -0700342 error = driver_register(&driver->drv);
343 if (error < 0)
344 return error;
345
346 error = pcmcia_create_newid_file(driver);
347 if (error)
348 driver_unregister(&driver->drv);
349
350 return error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351}
352EXPORT_SYMBOL(pcmcia_register_driver);
353
354/**
355 * pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core
Randy Dunlap78187862007-12-10 15:49:22 -0800356 * @driver: the &driver being unregistered
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357 */
358void pcmcia_unregister_driver(struct pcmcia_driver *driver)
359{
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200360 ds_dbg(3, "unregistering driver %s\n", driver->drv.name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361 driver_unregister(&driver->drv);
Bernhard Walle6179b552007-05-06 14:48:44 -0700362 pcmcia_free_dynids(driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363}
364EXPORT_SYMBOL(pcmcia_unregister_driver);
365
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366
367/* pcmcia_device handling */
368
Dominik Brodowskie7a480d2005-06-27 16:28:47 -0700369struct pcmcia_device * pcmcia_get_dev(struct pcmcia_device *p_dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700370{
371 struct device *tmp_dev;
372 tmp_dev = get_device(&p_dev->dev);
373 if (!tmp_dev)
374 return NULL;
375 return to_pcmcia_dev(tmp_dev);
376}
377
Dominik Brodowskie7a480d2005-06-27 16:28:47 -0700378void pcmcia_put_dev(struct pcmcia_device *p_dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379{
380 if (p_dev)
381 put_device(&p_dev->dev);
382}
383
Dominik Brodowski360b65b2006-01-10 20:50:39 +0100384static void pcmcia_release_function(struct kref *ref)
385{
386 struct config_t *c = container_of(ref, struct config_t, ref);
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200387 ds_dbg(1, "releasing config_t\n");
Dominik Brodowski360b65b2006-01-10 20:50:39 +0100388 kfree(c);
389}
390
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391static void pcmcia_release_dev(struct device *dev)
392{
393 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200394 ds_dbg(1, "releasing device %s\n", p_dev->dev.bus_id);
Dominik Brodowskidc109492005-06-27 16:28:50 -0700395 pcmcia_put_socket(p_dev->socket);
Brice Goglinbd65a682005-09-09 13:03:29 -0700396 kfree(p_dev->devname);
Dominik Brodowski360b65b2006-01-10 20:50:39 +0100397 kref_put(&p_dev->function_config->ref, pcmcia_release_function);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398 kfree(p_dev);
399}
400
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500401static void pcmcia_add_device_later(struct pcmcia_socket *s, int mfc)
Dominik Brodowski82d56e62006-01-27 19:15:02 +0100402{
403 if (!s->pcmcia_state.device_add_pending) {
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200404 ds_dbg(1, "scheduling to add %s secondary"
405 " device to %d\n", mfc ? "mfc" : "pfc", s->sock);
Dominik Brodowski82d56e62006-01-27 19:15:02 +0100406 s->pcmcia_state.device_add_pending = 1;
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500407 s->pcmcia_state.mfc_pfc = mfc;
Dominik Brodowski82d56e62006-01-27 19:15:02 +0100408 schedule_work(&s->device_add);
409 }
410 return;
411}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412
413static int pcmcia_device_probe(struct device * dev)
414{
415 struct pcmcia_device *p_dev;
416 struct pcmcia_driver *p_drv;
Dominik Brodowski82d56e62006-01-27 19:15:02 +0100417 struct pcmcia_device_id *did;
Dominik Brodowskif8cfa612005-11-14 21:25:51 +0100418 struct pcmcia_socket *s;
Dominik Brodowskiaf2b3b52006-10-25 21:49:27 -0400419 cistpl_config_t cis_config;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420 int ret = 0;
421
422 dev = get_device(dev);
423 if (!dev)
424 return -ENODEV;
425
426 p_dev = to_pcmcia_dev(dev);
427 p_drv = to_pcmcia_drv(dev->driver);
Dominik Brodowskif8cfa612005-11-14 21:25:51 +0100428 s = p_dev->socket;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200430 ds_dbg(1, "trying to bind %s to %s\n", p_dev->dev.bus_id,
431 p_drv->drv.name);
432
Dominik Brodowski360b65b2006-01-10 20:50:39 +0100433 if ((!p_drv->probe) || (!p_dev->function_config) ||
434 (!try_module_get(p_drv->owner))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435 ret = -EINVAL;
436 goto put_dev;
437 }
438
Dominik Brodowskiaf2b3b52006-10-25 21:49:27 -0400439 /* set up some more device information */
440 ret = pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_CONFIG,
441 &cis_config);
442 if (!ret) {
443 p_dev->conf.ConfigBase = cis_config.base;
444 p_dev->conf.Present = cis_config.rmask[0];
445 } else {
446 printk(KERN_INFO "pcmcia: could not parse base and rmask0 of CIS\n");
447 p_dev->conf.ConfigBase = 0;
448 p_dev->conf.Present = 0;
449 }
450
Dominik Brodowskif8cfa612005-11-14 21:25:51 +0100451 ret = p_drv->probe(p_dev);
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200452 if (ret) {
453 ds_dbg(1, "binding %s to %s failed with %d\n",
454 p_dev->dev.bus_id, p_drv->drv.name, ret);
Dominik Brodowski82d56e62006-01-27 19:15:02 +0100455 goto put_module;
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200456 }
Dominik Brodowski82d56e62006-01-27 19:15:02 +0100457
458 /* handle pseudo multifunction devices:
459 * there are at most two pseudo multifunction devices.
460 * if we're matching against the first, schedule a
461 * call which will then check whether there are two
462 * pseudo devices, and if not, add the second one.
463 */
Andrew Morton80a55e92006-04-10 23:24:57 -0700464 did = p_dev->dev.driver_data;
Hugh Dickins4ceadbf2006-03-10 21:13:44 +0000465 if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) &&
Dominik Brodowski82d56e62006-01-27 19:15:02 +0100466 (p_dev->socket->device_count == 1) && (p_dev->device_no == 0))
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500467 pcmcia_add_device_later(p_dev->socket, 0);
Dominik Brodowskif8cfa612005-11-14 21:25:51 +0100468
469 put_module:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700470 if (ret)
471 module_put(p_drv->owner);
472 put_dev:
Dominik Brodowskif8cfa612005-11-14 21:25:51 +0100473 if (ret)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474 put_device(dev);
475 return (ret);
476}
477
478
Dominik Brodowskid6ff5a82006-02-05 09:51:34 +0100479/*
480 * Removes a PCMCIA card from the device tree and socket list.
481 */
482static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *leftover)
483{
484 struct pcmcia_device *p_dev;
485 struct pcmcia_device *tmp;
486 unsigned long flags;
487
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200488 ds_dbg(2, "pcmcia_card_remove(%d) %s\n", s->sock,
489 leftover ? leftover->devname : "");
Dominik Brodowskid6ff5a82006-02-05 09:51:34 +0100490
491 if (!leftover)
492 s->device_count = 0;
493 else
494 s->device_count = 1;
495
496 /* unregister all pcmcia_devices registered with this socket, except leftover */
497 list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) {
498 if (p_dev == leftover)
499 continue;
500
501 spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
502 list_del(&p_dev->socket_device_list);
503 p_dev->_removed=1;
504 spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
505
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200506 ds_dbg(2, "unregistering device %s\n", p_dev->dev.bus_id);
Dominik Brodowskid6ff5a82006-02-05 09:51:34 +0100507 device_unregister(&p_dev->dev);
508 }
509
510 return;
511}
512
Linus Torvalds1da177e2005-04-16 15:20:36 -0700513static int pcmcia_device_remove(struct device * dev)
514{
515 struct pcmcia_device *p_dev;
516 struct pcmcia_driver *p_drv;
Dominik Brodowskid6ff5a82006-02-05 09:51:34 +0100517 struct pcmcia_device_id *did;
Dominik Brodowskicc3b4862005-11-14 21:23:14 +0100518 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700519
Linus Torvalds1da177e2005-04-16 15:20:36 -0700520 p_dev = to_pcmcia_dev(dev);
521 p_drv = to_pcmcia_drv(dev->driver);
Dominik Brodowskid6ff5a82006-02-05 09:51:34 +0100522
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200523 ds_dbg(1, "removing device %s\n", p_dev->dev.bus_id);
524
Dominik Brodowskid6ff5a82006-02-05 09:51:34 +0100525 /* If we're removing the primary module driving a
526 * pseudo multi-function card, we need to unbind
527 * all devices
528 */
Andrew Morton80a55e92006-04-10 23:24:57 -0700529 did = p_dev->dev.driver_data;
Hugh Dickinsb2f51a12006-03-10 21:15:19 +0000530 if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) &&
Dominik Brodowskid6ff5a82006-02-05 09:51:34 +0100531 (p_dev->socket->device_count != 0) &&
532 (p_dev->device_no == 0))
533 pcmcia_card_remove(p_dev->socket, p_dev);
534
535 /* detach the "instance" */
Dominik Brodowskif3990712005-11-14 21:25:23 +0100536 if (!p_drv)
537 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700538
Dominik Brodowskif3990712005-11-14 21:25:23 +0100539 if (p_drv->remove)
Dominik Brodowskicc3b4862005-11-14 21:23:14 +0100540 p_drv->remove(p_dev);
541
Dominik Brodowskia0aab142006-04-04 11:09:26 +0200542 p_dev->dev_node = NULL;
543
Dominik Brodowskif3990712005-11-14 21:25:23 +0100544 /* check for proper unloading */
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100545 if (p_dev->_irq || p_dev->_io || p_dev->_locked)
Dominik Brodowskif3990712005-11-14 21:25:23 +0100546 printk(KERN_INFO "pcmcia: driver %s did not release config properly\n",
547 p_drv->drv.name);
548
549 for (i = 0; i < MAX_WIN; i++)
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100550 if (p_dev->_win & CLIENT_WIN_REQ(i))
Dominik Brodowskif3990712005-11-14 21:25:23 +0100551 printk(KERN_INFO "pcmcia: driver %s did not release windows properly\n",
Dominik Brodowskicc3b4862005-11-14 21:23:14 +0100552 p_drv->drv.name);
553
Dominik Brodowskif3990712005-11-14 21:25:23 +0100554 /* references from pcmcia_probe_device */
555 pcmcia_put_dev(p_dev);
556 module_put(p_drv->owner);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700557
558 return 0;
559}
560
561
Dominik Brodowskicc3b4862005-11-14 21:23:14 +0100562/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700563 * pcmcia_device_query -- determine information about a pcmcia device
564 */
565static int pcmcia_device_query(struct pcmcia_device *p_dev)
566{
567 cistpl_manfid_t manf_id;
568 cistpl_funcid_t func_id;
Ingo Molnar76fa82f2005-09-09 13:03:21 -0700569 cistpl_vers_1_t *vers1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700570 unsigned int i;
571
Ingo Molnar76fa82f2005-09-09 13:03:21 -0700572 vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL);
573 if (!vers1)
574 return -ENOMEM;
575
Linus Torvalds1da177e2005-04-16 15:20:36 -0700576 if (!pccard_read_tuple(p_dev->socket, p_dev->func,
577 CISTPL_MANFID, &manf_id)) {
578 p_dev->manf_id = manf_id.manf;
579 p_dev->card_id = manf_id.card;
580 p_dev->has_manf_id = 1;
581 p_dev->has_card_id = 1;
582 }
583
584 if (!pccard_read_tuple(p_dev->socket, p_dev->func,
585 CISTPL_FUNCID, &func_id)) {
586 p_dev->func_id = func_id.func;
587 p_dev->has_func_id = 1;
588 } else {
589 /* rule of thumb: cards with no FUNCID, but with
590 * common memory device geometry information, are
591 * probably memory cards (from pcmcia-cs) */
Ingo Molnar76fa82f2005-09-09 13:03:21 -0700592 cistpl_device_geo_t *devgeo;
593
594 devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL);
595 if (!devgeo) {
596 kfree(vers1);
597 return -ENOMEM;
598 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700599 if (!pccard_read_tuple(p_dev->socket, p_dev->func,
Ingo Molnar76fa82f2005-09-09 13:03:21 -0700600 CISTPL_DEVICE_GEO, devgeo)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700601 ds_dbg(0, "mem device geometry probably means "
602 "FUNCID_MEMORY\n");
603 p_dev->func_id = CISTPL_FUNCID_MEMORY;
604 p_dev->has_func_id = 1;
605 }
Ingo Molnar76fa82f2005-09-09 13:03:21 -0700606 kfree(devgeo);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700607 }
608
609 if (!pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_VERS_1,
Ingo Molnar76fa82f2005-09-09 13:03:21 -0700610 vers1)) {
611 for (i=0; i < vers1->ns; i++) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700612 char *tmp;
613 unsigned int length;
614
Ingo Molnar76fa82f2005-09-09 13:03:21 -0700615 tmp = vers1->str + vers1->ofs[i];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700616
617 length = strlen(tmp) + 1;
Janos Farkas6e3d4f22006-03-31 01:04:57 +0200618 if ((length < 2) || (length > 255))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700619 continue;
620
621 p_dev->prod_id[i] = kmalloc(sizeof(char) * length,
622 GFP_KERNEL);
623 if (!p_dev->prod_id[i])
624 continue;
625
626 p_dev->prod_id[i] = strncpy(p_dev->prod_id[i],
627 tmp, length);
628 }
629 }
630
Ingo Molnar76fa82f2005-09-09 13:03:21 -0700631 kfree(vers1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632 return 0;
633}
634
635
636/* device_add_lock is needed to avoid double registration by cardmgr and kernel.
637 * Serializes pcmcia_device_add; will most likely be removed in future.
638 *
639 * While it has the caveat that adding new PCMCIA devices inside(!) device_register()
640 * won't work, this doesn't matter much at the moment: the driver core doesn't
641 * support it either.
642 */
Dominik Brodowski7fe908d2006-01-10 21:20:36 +0100643static DEFINE_MUTEX(device_add_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700644
Dominik Brodowskidc109492005-06-27 16:28:50 -0700645struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700646{
Dominik Brodowski360b65b2006-01-10 20:50:39 +0100647 struct pcmcia_device *p_dev, *tmp_dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700648 unsigned long flags;
Brice Goglinbd65a682005-09-09 13:03:29 -0700649 int bus_id_len;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700650
Dominik Brodowskidc109492005-06-27 16:28:50 -0700651 s = pcmcia_get_socket(s);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700652 if (!s)
653 return NULL;
654
Dominik Brodowski7fe908d2006-01-10 21:20:36 +0100655 mutex_lock(&device_add_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700656
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200657 ds_dbg(3, "adding device to %d, function %d\n", s->sock, function);
658
Dominik Brodowski6cf5be52006-11-27 21:03:48 -0500659 /* max of 4 devices per card */
660 if (s->device_count == 4)
Dominik Brodowski1ad275e2005-06-27 16:28:06 -0700661 goto err_put;
662
Dominik Brodowski8084b372005-12-11 21:18:26 +0100663 p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700664 if (!p_dev)
665 goto err_put;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700666
Dominik Brodowskidc109492005-06-27 16:28:50 -0700667 p_dev->socket = s;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700668 p_dev->device_no = (s->device_count++);
669 p_dev->func = function;
670
671 p_dev->dev.bus = &pcmcia_bus_type;
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200672 p_dev->dev.parent = s->dev.parent;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673 p_dev->dev.release = pcmcia_release_dev;
James Bottomley43d9f7f2007-10-16 01:23:58 -0700674 /* by default don't allow DMA */
675 p_dev->dma_mask = DMA_MASK_NONE;
676 p_dev->dev.dma_mask = &p_dev->dma_mask;
Brice Goglinbd65a682005-09-09 13:03:29 -0700677 bus_id_len = sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no);
678
679 p_dev->devname = kmalloc(6 + bus_id_len + 1, GFP_KERNEL);
680 if (!p_dev->devname)
681 goto err_free;
682 sprintf (p_dev->devname, "pcmcia%s", p_dev->dev.bus_id);
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200683 ds_dbg(3, "devname is %s\n", p_dev->devname);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700684
Linus Torvalds1da177e2005-04-16 15:20:36 -0700685 spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
Dominik Brodowski360b65b2006-01-10 20:50:39 +0100686
687 /*
688 * p_dev->function_config must be the same for all card functions.
689 * Note that this is serialized by the device_add_lock, so that
690 * only one such struct will be created.
691 */
692 list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list)
693 if (p_dev->func == tmp_dev->func) {
694 p_dev->function_config = tmp_dev->function_config;
695 kref_get(&p_dev->function_config->ref);
696 }
697
698 /* Add to the list in pcmcia_bus_socket */
Komuro6171b882006-04-02 17:39:27 +0900699 list_add(&p_dev->socket_device_list, &s->devices_list);
Dominik Brodowski360b65b2006-01-10 20:50:39 +0100700
Linus Torvalds1da177e2005-04-16 15:20:36 -0700701 spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
702
Dominik Brodowski360b65b2006-01-10 20:50:39 +0100703 if (!p_dev->function_config) {
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200704 ds_dbg(3, "creating config_t for %s\n", p_dev->dev.bus_id);
Dominik Brodowski360b65b2006-01-10 20:50:39 +0100705 p_dev->function_config = kzalloc(sizeof(struct config_t),
706 GFP_KERNEL);
707 if (!p_dev->function_config)
708 goto err_unreg;
709 kref_init(&p_dev->function_config->ref);
710 }
711
Dominik Brodowski807277c2005-11-12 23:34:06 +0100712 printk(KERN_NOTICE "pcmcia: registering new device %s\n",
713 p_dev->devname);
714
Dominik Brodowski1ad275e2005-06-27 16:28:06 -0700715 pcmcia_device_query(p_dev);
716
Dominik Brodowski360b65b2006-01-10 20:50:39 +0100717 if (device_register(&p_dev->dev))
718 goto err_unreg;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700719
Dominik Brodowski7fe908d2006-01-10 21:20:36 +0100720 mutex_unlock(&device_add_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700721
722 return p_dev;
723
Dominik Brodowski360b65b2006-01-10 20:50:39 +0100724 err_unreg:
725 spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
726 list_del(&p_dev->socket_device_list);
727 spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
728
Linus Torvalds1da177e2005-04-16 15:20:36 -0700729 err_free:
Brice Goglinbd65a682005-09-09 13:03:29 -0700730 kfree(p_dev->devname);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700731 kfree(p_dev);
732 s->device_count--;
733 err_put:
Dominik Brodowski7fe908d2006-01-10 21:20:36 +0100734 mutex_unlock(&device_add_lock);
Dominik Brodowskidc109492005-06-27 16:28:50 -0700735 pcmcia_put_socket(s);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700736
737 return NULL;
738}
739
740
741static int pcmcia_card_add(struct pcmcia_socket *s)
742{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700743 cistpl_longlink_mfc_t mfc;
Dominik Brodowskic5081d52008-06-19 20:12:34 +0200744 unsigned int no_funcs, i, no_chains;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700745 int ret = 0;
746
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200747 if (!(s->resource_setup_done)) {
748 ds_dbg(3, "no resources available, delaying card_add\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700749 return -EAGAIN; /* try again, but later... */
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200750 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700751
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200752 if (pcmcia_validate_mem(s)) {
753 ds_dbg(3, "validating mem resources failed, "
754 "delaying card_add\n");
Dominik Brodowskide759142005-09-28 19:41:56 +0200755 return -EAGAIN; /* try again, but later... */
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200756 }
Dominik Brodowskide759142005-09-28 19:41:56 +0200757
Dominik Brodowskic5081d52008-06-19 20:12:34 +0200758 ret = pccard_validate_cis(s, BIND_FN_ALL, &no_chains);
759 if (ret || !no_chains) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700760 ds_dbg(0, "invalid CIS or invalid resources\n");
761 return -ENODEV;
762 }
763
764 if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc))
765 no_funcs = mfc.nfn;
766 else
767 no_funcs = 1;
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500768 s->functions = no_funcs;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700769
Linus Torvalds1da177e2005-04-16 15:20:36 -0700770 for (i=0; i < no_funcs; i++)
Dominik Brodowskidc109492005-06-27 16:28:50 -0700771 pcmcia_device_add(s, i);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700772
773 return (ret);
774}
775
776
David Howells4796b712006-12-06 15:01:18 +0000777static void pcmcia_delayed_add_device(struct work_struct *work)
Dominik Brodowski1ad275e2005-06-27 16:28:06 -0700778{
David Howellsc4028952006-11-22 14:57:56 +0000779 struct pcmcia_socket *s =
780 container_of(work, struct pcmcia_socket, device_add);
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200781 ds_dbg(1, "adding additional device to %d\n", s->sock);
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500782 pcmcia_device_add(s, s->pcmcia_state.mfc_pfc);
Dominik Brodowskib5e43912005-06-27 16:28:50 -0700783 s->pcmcia_state.device_add_pending = 0;
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500784 s->pcmcia_state.mfc_pfc = 0;
Dominik Brodowski1ad275e2005-06-27 16:28:06 -0700785}
786
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700787static int pcmcia_requery(struct device *dev, void * _data)
Dominik Brodowskiff1fa9e2005-06-27 16:28:09 -0700788{
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700789 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200790 if (!p_dev->dev.driver) {
791 ds_dbg(1, "update device information for %s\n",
792 p_dev->dev.bus_id);
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700793 pcmcia_device_query(p_dev);
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200794 }
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700795
796 return 0;
797}
798
Dominik Brodowski4ae1cbf2006-11-03 10:54:00 -0500799static void pcmcia_bus_rescan(struct pcmcia_socket *skt, int new_cis)
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700800{
Dominik Brodowski4ae1cbf2006-11-03 10:54:00 -0500801 int no_devices = 0;
Dominik Brodowskif901b8c2006-10-25 19:56:55 -0400802 int ret = 0;
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700803 unsigned long flags;
804
Dominik Brodowski7fe908d2006-01-10 21:20:36 +0100805 /* must be called with skt_mutex held */
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200806 ds_dbg(0, "re-scanning socket %d\n", skt->sock);
807
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700808 spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
Dominik Brodowskidc109492005-06-27 16:28:50 -0700809 if (list_empty(&skt->devices_list))
Dominik Brodowski4ae1cbf2006-11-03 10:54:00 -0500810 no_devices = 1;
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700811 spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
812
Dominik Brodowski4ae1cbf2006-11-03 10:54:00 -0500813 /* If this is because of a CIS override, start over */
814 if (new_cis && !no_devices)
815 pcmcia_card_remove(skt, NULL);
816
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700817 /* if no devices were added for this socket yet because of
818 * missing resource information or other trouble, we need to
819 * do this now. */
Dominik Brodowski4ae1cbf2006-11-03 10:54:00 -0500820 if (no_devices || new_cis) {
Dominik Brodowskif901b8c2006-10-25 19:56:55 -0400821 ret = pcmcia_card_add(skt);
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700822 if (ret)
823 return;
824 }
825
826 /* some device information might have changed because of a CIS
827 * update or because we can finally read it correctly... so
828 * determine it again, overwriting old values if necessary. */
829 bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery);
830
831 /* we re-scan all devices, not just the ones connected to this
832 * socket. This does not matter, though. */
Dominik Brodowskif901b8c2006-10-25 19:56:55 -0400833 ret = bus_rescan_devices(&pcmcia_bus_type);
834 if (ret)
835 printk(KERN_INFO "pcmcia: bus_rescan_devices failed\n");
Dominik Brodowskiff1fa9e2005-06-27 16:28:09 -0700836}
Dominik Brodowski1ad275e2005-06-27 16:28:06 -0700837
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500838#ifdef CONFIG_PCMCIA_LOAD_CIS
839
840/**
841 * pcmcia_load_firmware - load CIS from userspace if device-provided is broken
Randy Dunlap78187862007-12-10 15:49:22 -0800842 * @dev: the pcmcia device which needs a CIS override
843 * @filename: requested filename in /lib/firmware/
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500844 *
845 * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if
846 * the one provided by the card is broken. The firmware files reside in
847 * /lib/firmware/ in userspace.
848 */
849static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename)
850{
851 struct pcmcia_socket *s = dev->socket;
852 const struct firmware *fw;
Dominik Brodowskifeda4f22008-06-24 15:45:55 +0200853 char path[FIRMWARE_NAME_MAX];
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500854 int ret = -ENOMEM;
855 int no_funcs;
856 int old_funcs;
857 cisdump_t *cis;
858 cistpl_longlink_mfc_t mfc;
859
860 if (!filename)
861 return -EINVAL;
862
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200863 ds_dbg(1, "trying to load CIS file %s\n", filename);
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500864
Dominik Brodowskifeda4f22008-06-24 15:45:55 +0200865 if (strlen(filename) > (FIRMWARE_NAME_MAX - 1)) {
Randy Dunlap52debb02008-02-04 22:27:38 -0800866 printk(KERN_WARNING "pcmcia: CIS filename is too long [%s]\n",
867 filename);
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500868 return -EINVAL;
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200869 }
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500870
Randy Dunlap52debb02008-02-04 22:27:38 -0800871 snprintf(path, sizeof(path), "%s", filename);
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500872
873 if (request_firmware(&fw, path, &dev->dev) == 0) {
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200874 if (fw->size >= CISTPL_MAX_CIS_SIZE) {
875 ret = -EINVAL;
876 printk(KERN_ERR "pcmcia: CIS override is too big\n");
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500877 goto release;
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200878 }
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500879
880 cis = kzalloc(sizeof(cisdump_t), GFP_KERNEL);
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200881 if (!cis) {
882 ret = -ENOMEM;
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500883 goto release;
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200884 }
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500885
886 cis->Length = fw->size + 1;
887 memcpy(cis->Data, fw->data, fw->size);
888
889 if (!pcmcia_replace_cis(s, cis))
890 ret = 0;
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200891 else {
892 printk(KERN_ERR "pcmcia: CIS override failed\n");
893 goto release;
894 }
895
Dominik Brodowski1d2c9042006-11-06 21:52:16 -0500896
897 /* update information */
898 pcmcia_device_query(dev);
899
900 /* does this cis override add or remove functions? */
901 old_funcs = s->functions;
902
903 if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc))
904 no_funcs = mfc.nfn;
905 else
906 no_funcs = 1;
907 s->functions = no_funcs;
908
909 if (old_funcs > no_funcs)
910 pcmcia_card_remove(s, dev);
911 else if (no_funcs > old_funcs)
912 pcmcia_add_device_later(s, 1);
913 }
914 release:
915 release_firmware(fw);
916
917 return (ret);
918}
919
920#else /* !CONFIG_PCMCIA_LOAD_CIS */
921
922static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename)
923{
924 return -ENODEV;
925}
926
927#endif
928
929
Dominik Brodowski1ad275e2005-06-27 16:28:06 -0700930static inline int pcmcia_devmatch(struct pcmcia_device *dev,
931 struct pcmcia_device_id *did)
932{
933 if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) {
934 if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id))
935 return 0;
936 }
937
938 if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) {
939 if ((!dev->has_card_id) || (dev->card_id != did->card_id))
940 return 0;
941 }
942
943 if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) {
944 if (dev->func != did->function)
945 return 0;
946 }
947
948 if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) {
949 if (!dev->prod_id[0])
950 return 0;
951 if (strcmp(did->prod_id[0], dev->prod_id[0]))
952 return 0;
953 }
954
955 if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) {
956 if (!dev->prod_id[1])
957 return 0;
958 if (strcmp(did->prod_id[1], dev->prod_id[1]))
959 return 0;
960 }
961
962 if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) {
963 if (!dev->prod_id[2])
964 return 0;
965 if (strcmp(did->prod_id[2], dev->prod_id[2]))
966 return 0;
967 }
968
969 if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) {
970 if (!dev->prod_id[3])
971 return 0;
972 if (strcmp(did->prod_id[3], dev->prod_id[3]))
973 return 0;
974 }
975
976 if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) {
Dominik Brodowski1ad275e2005-06-27 16:28:06 -0700977 if (dev->device_no != did->device_no)
978 return 0;
979 }
980
981 if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) {
982 if ((!dev->has_func_id) || (dev->func_id != did->func_id))
983 return 0;
984
985 /* if this is a pseudo-multi-function device,
986 * we need explicit matches */
987 if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO)
988 return 0;
989 if (dev->device_no)
990 return 0;
991
992 /* also, FUNC_ID matching needs to be activated by userspace
993 * after it has re-checked that there is no possible module
994 * with a prod_id/manf_id/card_id match.
995 */
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +0200996 ds_dbg(0, "skipping FUNC_ID match for %s until userspace "
997 "interaction\n", dev->dev.bus_id);
Dominik Brodowski1ad275e2005-06-27 16:28:06 -0700998 if (!dev->allow_func_id_match)
999 return 0;
1000 }
1001
Dominik Brodowskiea7b3882005-06-27 16:28:07 -07001002 if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) {
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001003 ds_dbg(0, "device %s needs a fake CIS\n", dev->dev.bus_id);
Dominik Brodowskidaa95172005-06-27 16:28:14 -07001004 if (!dev->socket->fake_cis)
1005 pcmcia_load_firmware(dev, did->cisfile);
1006
1007 if (!dev->socket->fake_cis)
Dominik Brodowskiea7b3882005-06-27 16:28:07 -07001008 return 0;
Dominik Brodowskiea7b3882005-06-27 16:28:07 -07001009 }
1010
Dominik Brodowskif602ff72005-06-27 16:28:09 -07001011 if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) {
1012 int i;
1013 for (i=0; i<4; i++)
1014 if (dev->prod_id[i])
1015 return 0;
1016 if (dev->has_manf_id || dev->has_card_id || dev->has_func_id)
1017 return 0;
1018 }
1019
Dominik Brodowski1ad275e2005-06-27 16:28:06 -07001020 dev->dev.driver_data = (void *) did;
1021
1022 return 1;
1023}
1024
1025
Linus Torvalds1da177e2005-04-16 15:20:36 -07001026static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) {
1027 struct pcmcia_device * p_dev = to_pcmcia_dev(dev);
1028 struct pcmcia_driver * p_drv = to_pcmcia_drv(drv);
Dominik Brodowski1ad275e2005-06-27 16:28:06 -07001029 struct pcmcia_device_id *did = p_drv->id_table;
Bernhard Walle6179b552007-05-06 14:48:44 -07001030 struct pcmcia_dynid *dynid;
1031
1032 /* match dynamic devices first */
1033 spin_lock(&p_drv->dynids.lock);
1034 list_for_each_entry(dynid, &p_drv->dynids.list, node) {
1035 ds_dbg(3, "trying to match %s to %s\n", dev->bus_id,
1036 drv->name);
1037 if (pcmcia_devmatch(p_dev, &dynid->id)) {
1038 ds_dbg(0, "matched %s to %s\n", dev->bus_id,
1039 drv->name);
1040 spin_unlock(&p_drv->dynids.lock);
1041 return 1;
1042 }
1043 }
1044 spin_unlock(&p_drv->dynids.lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001045
Dominik Brodowski0e0fad82006-01-15 01:14:31 +01001046#ifdef CONFIG_PCMCIA_IOCTL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047 /* matching by cardmgr */
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001048 if (p_dev->cardmgr == p_drv) {
1049 ds_dbg(0, "cardmgr matched %s to %s\n", dev->bus_id,
1050 drv->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001051 return 1;
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001052 }
Dominik Brodowski0e0fad82006-01-15 01:14:31 +01001053#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001054
Dominik Brodowski1ad275e2005-06-27 16:28:06 -07001055 while (did && did->match_flags) {
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001056 ds_dbg(3, "trying to match %s to %s\n", dev->bus_id,
1057 drv->name);
1058 if (pcmcia_devmatch(p_dev, did)) {
1059 ds_dbg(0, "matched %s to %s\n", dev->bus_id,
1060 drv->name);
Dominik Brodowski1ad275e2005-06-27 16:28:06 -07001061 return 1;
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001062 }
Dominik Brodowski1ad275e2005-06-27 16:28:06 -07001063 did++;
1064 }
1065
Linus Torvalds1da177e2005-04-16 15:20:36 -07001066 return 0;
1067}
1068
Dominik Brodowski840c2ac2005-06-27 16:28:04 -07001069#ifdef CONFIG_HOTPLUG
1070
Kay Sievers7eff2e72007-08-14 15:15:12 +02001071static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
Dominik Brodowski840c2ac2005-06-27 16:28:04 -07001072{
1073 struct pcmcia_device *p_dev;
Kay Sievers7eff2e72007-08-14 15:15:12 +02001074 int i;
Dominik Brodowski840c2ac2005-06-27 16:28:04 -07001075 u32 hash[4] = { 0, 0, 0, 0};
1076
1077 if (!dev)
1078 return -ENODEV;
1079
1080 p_dev = to_pcmcia_dev(dev);
1081
1082 /* calculate hashes */
1083 for (i=0; i<4; i++) {
1084 if (!p_dev->prod_id[i])
1085 continue;
1086 hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i]));
1087 }
1088
Kay Sievers7eff2e72007-08-14 15:15:12 +02001089 if (add_uevent_var(env, "SOCKET_NO=%u", p_dev->socket->sock))
Dominik Brodowski840c2ac2005-06-27 16:28:04 -07001090 return -ENOMEM;
1091
Kay Sievers7eff2e72007-08-14 15:15:12 +02001092 if (add_uevent_var(env, "DEVICE_NO=%02X", p_dev->device_no))
Dominik Brodowski840c2ac2005-06-27 16:28:04 -07001093 return -ENOMEM;
1094
Kay Sievers7eff2e72007-08-14 15:15:12 +02001095 if (add_uevent_var(env, "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X"
Kay Sievers312c0042005-11-16 09:00:00 +01001096 "pa%08Xpb%08Xpc%08Xpd%08X",
1097 p_dev->has_manf_id ? p_dev->manf_id : 0,
1098 p_dev->has_card_id ? p_dev->card_id : 0,
1099 p_dev->has_func_id ? p_dev->func_id : 0,
1100 p_dev->func,
1101 p_dev->device_no,
1102 hash[0],
1103 hash[1],
1104 hash[2],
1105 hash[3]))
Dominik Brodowski840c2ac2005-06-27 16:28:04 -07001106 return -ENOMEM;
1107
Dominik Brodowski840c2ac2005-06-27 16:28:04 -07001108 return 0;
1109}
1110
1111#else
1112
Kay Sievers7eff2e72007-08-14 15:15:12 +02001113static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
Dominik Brodowski840c2ac2005-06-27 16:28:04 -07001114{
1115 return -ENODEV;
1116}
1117
1118#endif
1119
Alan Stern3f8df782007-07-12 16:57:22 -04001120/************************ runtime PM support ***************************/
1121
1122static int pcmcia_dev_suspend(struct device *dev, pm_message_t state);
1123static int pcmcia_dev_resume(struct device *dev);
1124
1125static int runtime_suspend(struct device *dev)
1126{
1127 int rc;
1128
1129 down(&dev->sem);
1130 rc = pcmcia_dev_suspend(dev, PMSG_SUSPEND);
1131 up(&dev->sem);
Alan Stern3f8df782007-07-12 16:57:22 -04001132 return rc;
1133}
1134
1135static void runtime_resume(struct device *dev)
1136{
1137 int rc;
1138
1139 down(&dev->sem);
1140 rc = pcmcia_dev_resume(dev);
1141 up(&dev->sem);
Alan Stern3f8df782007-07-12 16:57:22 -04001142}
1143
Linus Torvalds1da177e2005-04-16 15:20:36 -07001144/************************ per-device sysfs output ***************************/
1145
1146#define pcmcia_device_attr(field, test, format) \
Yani Ioannoue404e272005-05-17 06:42:58 -04001147static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001148{ \
1149 struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \
1150 return p_dev->test ? sprintf (buf, format, p_dev->field) : -ENODEV; \
1151}
1152
1153#define pcmcia_device_stringattr(name, field) \
Yani Ioannoue404e272005-05-17 06:42:58 -04001154static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001155{ \
1156 struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \
1157 return p_dev->field ? sprintf (buf, "%s\n", p_dev->field) : -ENODEV; \
1158}
1159
1160pcmcia_device_attr(func, socket, "0x%02x\n");
1161pcmcia_device_attr(func_id, has_func_id, "0x%02x\n");
1162pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n");
1163pcmcia_device_attr(card_id, has_card_id, "0x%04x\n");
1164pcmcia_device_stringattr(prod_id1, prod_id[0]);
1165pcmcia_device_stringattr(prod_id2, prod_id[1]);
1166pcmcia_device_stringattr(prod_id3, prod_id[2]);
1167pcmcia_device_stringattr(prod_id4, prod_id[3]);
1168
Dominik Brodowskidb1019c2006-01-10 19:19:37 +01001169
1170static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf)
1171{
1172 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
1173
Dominik Brodowskif6fbe012006-01-20 15:10:23 +01001174 if (p_dev->suspended)
Dominik Brodowskidb1019c2006-01-10 19:19:37 +01001175 return sprintf(buf, "off\n");
1176 else
1177 return sprintf(buf, "on\n");
1178}
1179
1180static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr,
1181 const char *buf, size_t count)
1182{
1183 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
1184 int ret = 0;
1185
1186 if (!count)
1187 return -EINVAL;
1188
Dominik Brodowskif6fbe012006-01-20 15:10:23 +01001189 if ((!p_dev->suspended) && !strncmp(buf, "off", 3))
Alan Stern3f8df782007-07-12 16:57:22 -04001190 ret = runtime_suspend(dev);
Dominik Brodowskif6fbe012006-01-20 15:10:23 +01001191 else if (p_dev->suspended && !strncmp(buf, "on", 2))
Alan Stern3f8df782007-07-12 16:57:22 -04001192 runtime_resume(dev);
Dominik Brodowskidb1019c2006-01-10 19:19:37 +01001193
1194 return ret ? ret : count;
1195}
1196
1197
Dominik Brodowski37045112005-06-30 02:58:47 -07001198static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
Dominik Brodowski3248ff42005-06-27 16:29:01 -07001199{
1200 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
1201 int i;
1202 u32 hash[4] = { 0, 0, 0, 0};
Dominik Brodowskia5b55772005-06-27 16:28:10 -07001203
Dominik Brodowski3248ff42005-06-27 16:29:01 -07001204 /* calculate hashes */
1205 for (i=0; i<4; i++) {
1206 if (!p_dev->prod_id[i])
1207 continue;
1208 hash[i] = crc32(0,p_dev->prod_id[i],strlen(p_dev->prod_id[i]));
1209 }
1210 return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X"
1211 "pa%08Xpb%08Xpc%08Xpd%08X\n",
1212 p_dev->has_manf_id ? p_dev->manf_id : 0,
1213 p_dev->has_card_id ? p_dev->card_id : 0,
1214 p_dev->has_func_id ? p_dev->func_id : 0,
1215 p_dev->func, p_dev->device_no,
1216 hash[0], hash[1], hash[2], hash[3]);
1217}
1218
1219static ssize_t pcmcia_store_allow_func_id_match(struct device *dev,
1220 struct device_attribute *attr, const char *buf, size_t count)
Dominik Brodowskia5b55772005-06-27 16:28:10 -07001221{
1222 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
Dominik Brodowskif901b8c2006-10-25 19:56:55 -04001223 int ret;
Dominik Brodowskidb1019c2006-01-10 19:19:37 +01001224
1225 if (!count)
1226 return -EINVAL;
Dominik Brodowskia5b55772005-06-27 16:28:10 -07001227
Dominik Brodowski7fe908d2006-01-10 21:20:36 +01001228 mutex_lock(&p_dev->socket->skt_mutex);
Dominik Brodowskia5b55772005-06-27 16:28:10 -07001229 p_dev->allow_func_id_match = 1;
Dominik Brodowski7fe908d2006-01-10 21:20:36 +01001230 mutex_unlock(&p_dev->socket->skt_mutex);
Dominik Brodowskia5b55772005-06-27 16:28:10 -07001231
Dominik Brodowskif901b8c2006-10-25 19:56:55 -04001232 ret = bus_rescan_devices(&pcmcia_bus_type);
1233 if (ret)
1234 printk(KERN_INFO "pcmcia: bus_rescan_devices failed after "
1235 "allowing func_id matches\n");
Dominik Brodowskia5b55772005-06-27 16:28:10 -07001236
1237 return count;
1238}
1239
Linus Torvalds1da177e2005-04-16 15:20:36 -07001240static struct device_attribute pcmcia_dev_attrs[] = {
1241 __ATTR(function, 0444, func_show, NULL),
Dominik Brodowskidb1019c2006-01-10 19:19:37 +01001242 __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001243 __ATTR_RO(func_id),
1244 __ATTR_RO(manf_id),
1245 __ATTR_RO(card_id),
1246 __ATTR_RO(prod_id1),
1247 __ATTR_RO(prod_id2),
1248 __ATTR_RO(prod_id3),
1249 __ATTR_RO(prod_id4),
Dominik Brodowski3248ff42005-06-27 16:29:01 -07001250 __ATTR_RO(modalias),
Dominik Brodowskia5b55772005-06-27 16:28:10 -07001251 __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001252 __ATTR_NULL,
1253};
1254
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001255/* PM support, also needed for reset */
1256
1257static int pcmcia_dev_suspend(struct device * dev, pm_message_t state)
1258{
1259 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
1260 struct pcmcia_driver *p_drv = NULL;
Dominik Brodowskif6fbe012006-01-20 15:10:23 +01001261 int ret = 0;
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001262
David Brownelld6b4fa62008-02-04 22:27:37 -08001263 if (p_dev->suspended)
1264 return 0;
1265
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001266 ds_dbg(2, "suspending %s\n", dev->bus_id);
1267
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001268 if (dev->driver)
1269 p_drv = to_pcmcia_drv(dev->driver);
1270
Dominik Brodowskie2d40962006-03-02 00:09:29 +01001271 if (!p_drv)
1272 goto out;
1273
1274 if (p_drv->suspend) {
Dominik Brodowski8661bb52006-03-02 00:02:33 +01001275 ret = p_drv->suspend(p_dev);
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001276 if (ret) {
1277 printk(KERN_ERR "pcmcia: device %s (driver %s) did "
1278 "not want to go to sleep (%d)\n",
1279 p_dev->devname, p_drv->drv.name, ret);
Dominik Brodowskif6fbe012006-01-20 15:10:23 +01001280 goto out;
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001281 }
Dominik Brodowski8661bb52006-03-02 00:02:33 +01001282 }
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001283
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001284 if (p_dev->device_no == p_dev->func) {
1285 ds_dbg(2, "releasing configuration for %s\n", dev->bus_id);
Dominik Brodowskie2d40962006-03-02 00:09:29 +01001286 pcmcia_release_configuration(p_dev);
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001287 }
Dominik Brodowskie2d40962006-03-02 00:09:29 +01001288
Dominik Brodowskif6fbe012006-01-20 15:10:23 +01001289 out:
1290 if (!ret)
1291 p_dev->suspended = 1;
1292 return ret;
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001293}
1294
1295
1296static int pcmcia_dev_resume(struct device * dev)
1297{
1298 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
1299 struct pcmcia_driver *p_drv = NULL;
Dominik Brodowskif6fbe012006-01-20 15:10:23 +01001300 int ret = 0;
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001301
David Brownelld6b4fa62008-02-04 22:27:37 -08001302 if (!p_dev->suspended)
1303 return 0;
1304
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001305 ds_dbg(2, "resuming %s\n", dev->bus_id);
1306
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001307 if (dev->driver)
1308 p_drv = to_pcmcia_drv(dev->driver);
1309
Dominik Brodowskie2d40962006-03-02 00:09:29 +01001310 if (!p_drv)
1311 goto out;
1312
1313 if (p_dev->device_no == p_dev->func) {
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001314 ds_dbg(2, "requesting configuration for %s\n", dev->bus_id);
Dominik Brodowskie2d40962006-03-02 00:09:29 +01001315 ret = pcmcia_request_configuration(p_dev, &p_dev->conf);
1316 if (ret)
1317 goto out;
Dominik Brodowski8661bb52006-03-02 00:02:33 +01001318 }
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001319
Dominik Brodowskie2d40962006-03-02 00:09:29 +01001320 if (p_drv->resume)
1321 ret = p_drv->resume(p_dev);
1322
Dominik Brodowskif6fbe012006-01-20 15:10:23 +01001323 out:
1324 if (!ret)
1325 p_dev->suspended = 0;
1326 return ret;
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001327}
1328
1329
1330static int pcmcia_bus_suspend_callback(struct device *dev, void * _data)
1331{
1332 struct pcmcia_socket *skt = _data;
1333 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
1334
Alan Stern3f8df782007-07-12 16:57:22 -04001335 if (p_dev->socket != skt || p_dev->suspended)
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001336 return 0;
1337
Alan Stern3f8df782007-07-12 16:57:22 -04001338 return runtime_suspend(dev);
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001339}
1340
1341static int pcmcia_bus_resume_callback(struct device *dev, void * _data)
1342{
1343 struct pcmcia_socket *skt = _data;
1344 struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
1345
Alan Stern3f8df782007-07-12 16:57:22 -04001346 if (p_dev->socket != skt || !p_dev->suspended)
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001347 return 0;
1348
Alan Stern3f8df782007-07-12 16:57:22 -04001349 runtime_resume(dev);
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001350
1351 return 0;
1352}
1353
1354static int pcmcia_bus_resume(struct pcmcia_socket *skt)
1355{
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001356 ds_dbg(2, "resuming socket %d\n", skt->sock);
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001357 bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback);
1358 return 0;
1359}
1360
1361static int pcmcia_bus_suspend(struct pcmcia_socket *skt)
1362{
Dominik Brodowskid9d9ea02006-12-02 22:11:44 +02001363 ds_dbg(2, "suspending socket %d\n", skt->sock);
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001364 if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt,
1365 pcmcia_bus_suspend_callback)) {
1366 pcmcia_bus_resume(skt);
1367 return -EIO;
1368 }
1369 return 0;
1370}
1371
Linus Torvalds1da177e2005-04-16 15:20:36 -07001372
1373/*======================================================================
1374
Linus Torvalds1da177e2005-04-16 15:20:36 -07001375 The card status event handler.
1376
1377======================================================================*/
1378
Linus Torvalds1da177e2005-04-16 15:20:36 -07001379/* Normally, the event is passed to individual drivers after
1380 * informing userspace. Only for CS_EVENT_CARD_REMOVAL this
1381 * is inversed to maintain historic compatibility.
1382 */
1383
1384static int ds_event(struct pcmcia_socket *skt, event_t event, int priority)
1385{
Dominik Brodowskidc109492005-06-27 16:28:50 -07001386 struct pcmcia_socket *s = pcmcia_get_socket(skt);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001387
Florin Malita16174062006-05-24 21:21:31 -04001388 if (!s) {
1389 printk(KERN_ERR "PCMCIA obtaining reference to socket %p " \
1390 "failed, event 0x%x lost!\n", skt, event);
1391 return -ENODEV;
1392 }
1393
Linus Torvalds1da177e2005-04-16 15:20:36 -07001394 ds_dbg(1, "ds_event(0x%06x, %d, 0x%p)\n",
Dominik Brodowskidc109492005-06-27 16:28:50 -07001395 event, priority, skt);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001396
Dominik Brodowskif8cfa612005-11-14 21:25:51 +01001397 switch (event) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001398 case CS_EVENT_CARD_REMOVAL:
Dominik Brodowskib5e43912005-06-27 16:28:50 -07001399 s->pcmcia_state.present = 0;
Dominik Brodowskid6ff5a82006-02-05 09:51:34 +01001400 pcmcia_card_remove(skt, NULL);
Dominik Brodowskidc109492005-06-27 16:28:50 -07001401 handle_event(skt, event);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001402 break;
Dominik Brodowskif8cfa612005-11-14 21:25:51 +01001403
Linus Torvalds1da177e2005-04-16 15:20:36 -07001404 case CS_EVENT_CARD_INSERTION:
Dominik Brodowskib5e43912005-06-27 16:28:50 -07001405 s->pcmcia_state.present = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001406 pcmcia_card_add(skt);
Dominik Brodowskidc109492005-06-27 16:28:50 -07001407 handle_event(skt, event);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001408 break;
1409
1410 case CS_EVENT_EJECTION_REQUEST:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001411 break;
1412
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001413 case CS_EVENT_PM_SUSPEND:
1414 case CS_EVENT_PM_RESUME:
1415 case CS_EVENT_RESET_PHYSICAL:
1416 case CS_EVENT_CARD_RESET:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001417 default:
Dominik Brodowskidc109492005-06-27 16:28:50 -07001418 handle_event(skt, event);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001419 break;
1420 }
1421
Dominik Brodowskidc109492005-06-27 16:28:50 -07001422 pcmcia_put_socket(s);
1423
Linus Torvalds1da177e2005-04-16 15:20:36 -07001424 return 0;
1425} /* ds_event */
1426
1427
Dominik Brodowski9940ec32006-03-05 11:04:33 +01001428struct pcmcia_device * pcmcia_dev_present(struct pcmcia_device *_p_dev)
1429{
1430 struct pcmcia_device *p_dev;
1431 struct pcmcia_device *ret = NULL;
1432
1433 p_dev = pcmcia_get_dev(_p_dev);
1434 if (!p_dev)
1435 return NULL;
1436
1437 if (!p_dev->socket->pcmcia_state.present)
1438 goto out;
1439
1440 if (p_dev->_removed)
1441 goto out;
1442
1443 if (p_dev->suspended)
1444 goto out;
1445
1446 ret = p_dev;
1447 out:
1448 pcmcia_put_dev(p_dev);
1449 return ret;
1450}
1451EXPORT_SYMBOL(pcmcia_dev_present);
1452
1453
Dominik Brodowski90c6cdd2005-06-27 16:28:49 -07001454static struct pcmcia_callback pcmcia_bus_callback = {
1455 .owner = THIS_MODULE,
1456 .event = ds_event,
1457 .requery = pcmcia_bus_rescan,
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001458 .suspend = pcmcia_bus_suspend,
1459 .resume = pcmcia_bus_resume,
Dominik Brodowski90c6cdd2005-06-27 16:28:49 -07001460};
1461
Greg Kroah-Hartman87373312006-09-12 17:00:10 +02001462static int __devinit pcmcia_bus_add_socket(struct device *dev,
Dmitry Torokhovd8539d82005-09-15 02:01:36 -05001463 struct class_interface *class_intf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001464{
Greg Kroah-Hartman87373312006-09-12 17:00:10 +02001465 struct pcmcia_socket *socket = dev_get_drvdata(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001466 int ret;
1467
Dominik Brodowskidc109492005-06-27 16:28:50 -07001468 socket = pcmcia_get_socket(socket);
1469 if (!socket) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001470 printk(KERN_ERR "PCMCIA obtaining reference to socket %p failed\n", socket);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001471 return -ENODEV;
1472 }
1473
Linus Torvalds1da177e2005-04-16 15:20:36 -07001474 /*
1475 * Ugly. But we want to wait for the socket threads to have started up.
1476 * We really should let the drivers themselves drive some of this..
1477 */
1478 msleep(250);
1479
Dominik Brodowskie7a480d2005-06-27 16:28:47 -07001480#ifdef CONFIG_PCMCIA_IOCTL
Dominik Brodowskidc109492005-06-27 16:28:50 -07001481 init_waitqueue_head(&socket->queue);
Dominik Brodowskie7a480d2005-06-27 16:28:47 -07001482#endif
Dominik Brodowskidc109492005-06-27 16:28:50 -07001483 INIT_LIST_HEAD(&socket->devices_list);
David Howells4796b712006-12-06 15:01:18 +00001484 INIT_WORK(&socket->device_add, pcmcia_delayed_add_device);
Dominik Brodowskidc109492005-06-27 16:28:50 -07001485 memset(&socket->pcmcia_state, 0, sizeof(u8));
1486 socket->device_count = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001487
Dominik Brodowski90c6cdd2005-06-27 16:28:49 -07001488 ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001489 if (ret) {
1490 printk(KERN_ERR "PCMCIA registration PCCard core failed for socket %p\n", socket);
Dominik Brodowskidc109492005-06-27 16:28:50 -07001491 pcmcia_put_socket(socket);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001492 return (ret);
1493 }
1494
1495 return 0;
1496}
1497
Greg Kroah-Hartman87373312006-09-12 17:00:10 +02001498static void pcmcia_bus_remove_socket(struct device *dev,
Dmitry Torokhovd8539d82005-09-15 02:01:36 -05001499 struct class_interface *class_intf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001500{
Greg Kroah-Hartman87373312006-09-12 17:00:10 +02001501 struct pcmcia_socket *socket = dev_get_drvdata(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001502
Dominik Brodowskidc109492005-06-27 16:28:50 -07001503 if (!socket)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001504 return;
1505
Dominik Brodowskidc109492005-06-27 16:28:50 -07001506 socket->pcmcia_state.dead = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001507 pccard_register_pcmcia(socket, NULL);
1508
Daniel Ritzdfbc9e92006-11-18 22:19:34 -08001509 /* unregister any unbound devices */
Daniel Ritz8e4d9dc2006-11-25 11:09:17 -08001510 mutex_lock(&socket->skt_mutex);
Daniel Ritzdfbc9e92006-11-18 22:19:34 -08001511 pcmcia_card_remove(socket, NULL);
Daniel Ritz8e4d9dc2006-11-25 11:09:17 -08001512 mutex_unlock(&socket->skt_mutex);
Daniel Ritzdfbc9e92006-11-18 22:19:34 -08001513
Dominik Brodowskidc109492005-06-27 16:28:50 -07001514 pcmcia_put_socket(socket);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001515
1516 return;
1517}
1518
1519
1520/* the pcmcia_bus_interface is used to handle pcmcia socket devices */
Sam Ravnborged49f5d2008-05-01 04:34:50 -07001521static struct class_interface pcmcia_bus_interface __refdata = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001522 .class = &pcmcia_socket_class,
Greg Kroah-Hartman87373312006-09-12 17:00:10 +02001523 .add_dev = &pcmcia_bus_add_socket,
1524 .remove_dev = &pcmcia_bus_remove_socket,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001525};
1526
1527
Dominik Brodowskie7a480d2005-06-27 16:28:47 -07001528struct bus_type pcmcia_bus_type = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001529 .name = "pcmcia",
Kay Sievers312c0042005-11-16 09:00:00 +01001530 .uevent = pcmcia_bus_uevent,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001531 .match = pcmcia_bus_match,
1532 .dev_attrs = pcmcia_dev_attrs,
Russell King1d0baa32006-01-05 14:40:58 +00001533 .probe = pcmcia_device_probe,
1534 .remove = pcmcia_device_remove,
Dominik Brodowski8e9e7932006-01-06 00:02:03 +01001535 .suspend = pcmcia_dev_suspend,
1536 .resume = pcmcia_dev_resume,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001537};
Linus Torvalds1da177e2005-04-16 15:20:36 -07001538
1539
1540static int __init init_pcmcia_bus(void)
1541{
Randy Dunlapace7d472006-10-20 14:44:12 -07001542 int ret;
1543
Linus Torvalds1da177e2005-04-16 15:20:36 -07001544 spin_lock_init(&pcmcia_dev_list_lock);
1545
Randy Dunlapace7d472006-10-20 14:44:12 -07001546 ret = bus_register(&pcmcia_bus_type);
1547 if (ret < 0) {
1548 printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret);
1549 return ret;
1550 }
1551 ret = class_interface_register(&pcmcia_bus_interface);
1552 if (ret < 0) {
1553 printk(KERN_WARNING
1554 "pcmcia: class_interface_register error: %d\n", ret);
1555 bus_unregister(&pcmcia_bus_type);
1556 return ret;
1557 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001558
Dominik Brodowskie7a480d2005-06-27 16:28:47 -07001559 pcmcia_setup_ioctl();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001560
1561 return 0;
1562}
1563fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that
1564 * pcmcia_socket_class is already registered */
1565
1566
1567static void __exit exit_pcmcia_bus(void)
1568{
Dominik Brodowskie7a480d2005-06-27 16:28:47 -07001569 pcmcia_cleanup_ioctl();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001570
Dominik Brodowskie7a480d2005-06-27 16:28:47 -07001571 class_interface_unregister(&pcmcia_bus_interface);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001572
1573 bus_unregister(&pcmcia_bus_type);
1574}
1575module_exit(exit_pcmcia_bus);
1576
1577
Linus Torvalds1da177e2005-04-16 15:20:36 -07001578MODULE_ALIAS("ds");