Commit | Line | Data |
---|---|---|
d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
1da177e4 LT |
2 | /* |
3 | * ds.c -- 16-bit PCMCIA core support | |
4 | * | |
1da177e4 LT |
5 | * The initial developer of the original code is David A. Hinds |
6 | * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds | |
7 | * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. | |
8 | * | |
9 | * (C) 1999 David A. Hinds | |
7b24e798 | 10 | * (C) 2003 - 2010 Dominik Brodowski |
1da177e4 LT |
11 | */ |
12 | ||
3b659fb8 | 13 | #include <linux/kernel.h> |
1da177e4 | 14 | #include <linux/module.h> |
1da177e4 | 15 | #include <linux/init.h> |
1da177e4 | 16 | #include <linux/errno.h> |
1da177e4 LT |
17 | #include <linux/list.h> |
18 | #include <linux/delay.h> | |
1da177e4 | 19 | #include <linux/workqueue.h> |
840c2ac5 | 20 | #include <linux/crc32.h> |
daa9517d | 21 | #include <linux/firmware.h> |
360b65b9 | 22 | #include <linux/kref.h> |
43d9f7fd | 23 | #include <linux/dma-mapping.h> |
5a0e3ad6 | 24 | #include <linux/slab.h> |
1da177e4 | 25 | |
1da177e4 LT |
26 | #include <pcmcia/cistpl.h> |
27 | #include <pcmcia/ds.h> | |
28 | #include <pcmcia/ss.h> | |
29 | ||
30 | #include "cs_internal.h" | |
31 | ||
32 | /*====================================================================*/ | |
33 | ||
34 | /* Module parameters */ | |
35 | ||
36 | MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>"); | |
37 | MODULE_DESCRIPTION("PCMCIA Driver Services"); | |
38 | MODULE_LICENSE("GPL"); | |
39 | ||
1da177e4 | 40 | |
1da177e4 LT |
41 | /*====================================================================*/ |
42 | ||
23a83bfe DB |
43 | static void pcmcia_check_driver(struct pcmcia_driver *p_drv) |
44 | { | |
e9fb13bf | 45 | const struct pcmcia_device_id *did = p_drv->id_table; |
23a83bfe DB |
46 | unsigned int i; |
47 | u32 hash; | |
48 | ||
f8cfa618 | 49 | if (!p_drv->probe || !p_drv->remove) |
ba5bb6b5 | 50 | printk(KERN_DEBUG "pcmcia: %s lacks a requisite callback " |
2e9b981a | 51 | "function\n", p_drv->name); |
1e212f36 | 52 | |
23a83bfe | 53 | while (did && did->match_flags) { |
9fea84f4 | 54 | for (i = 0; i < 4; i++) { |
23a83bfe DB |
55 | if (!did->prod_id[i]) |
56 | continue; | |
57 | ||
58 | hash = crc32(0, did->prod_id[i], strlen(did->prod_id[i])); | |
59 | if (hash == did->prod_id_hash[i]) | |
60 | continue; | |
61 | ||
62 | printk(KERN_DEBUG "pcmcia: %s: invalid hash for " | |
63 | "product string \"%s\": is 0x%x, should " | |
2e9b981a | 64 | "be 0x%x\n", p_drv->name, did->prod_id[i], |
23a83bfe | 65 | did->prod_id_hash[i], hash); |
5085cb26 | 66 | printk(KERN_DEBUG "pcmcia: see " |
3bdab16c | 67 | "Documentation/pcmcia/devicetable.rst for " |
5085cb26 | 68 | "details\n"); |
23a83bfe DB |
69 | } |
70 | did++; | |
71 | } | |
72 | ||
73 | return; | |
74 | } | |
75 | ||
daa9517d | 76 | |
1da177e4 LT |
77 | /*======================================================================*/ |
78 | ||
1da177e4 | 79 | |
6179b556 | 80 | struct pcmcia_dynid { |
46f533cc LN |
81 | struct list_head node; |
82 | struct pcmcia_device_id id; | |
6179b556 BW |
83 | }; |
84 | ||
85 | /** | |
86 | * pcmcia_store_new_id - add a new PCMCIA device ID to this driver and re-probe devices | |
87 | * @driver: target device driver | |
88 | * @buf: buffer for scanning device ID data | |
89 | * @count: input size | |
90 | * | |
91 | * Adds a new dynamic PCMCIA device ID to this driver, | |
92 | * and causes the driver to probe for all devices again. | |
93 | */ | |
94 | static ssize_t | |
ad8f20a4 | 95 | new_id_store(struct device_driver *driver, const char *buf, size_t count) |
6179b556 BW |
96 | { |
97 | struct pcmcia_dynid *dynid; | |
98 | struct pcmcia_driver *pdrv = to_pcmcia_drv(driver); | |
99 | __u16 match_flags, manf_id, card_id; | |
100 | __u8 func_id, function, device_no; | |
101 | __u32 prod_id_hash[4] = {0, 0, 0, 0}; | |
9fea84f4 | 102 | int fields = 0; |
6179b556 BW |
103 | int retval = 0; |
104 | ||
105 | fields = sscanf(buf, "%hx %hx %hx %hhx %hhx %hhx %x %x %x %x", | |
106 | &match_flags, &manf_id, &card_id, &func_id, &function, &device_no, | |
107 | &prod_id_hash[0], &prod_id_hash[1], &prod_id_hash[2], &prod_id_hash[3]); | |
108 | if (fields < 6) | |
109 | return -EINVAL; | |
110 | ||
111 | dynid = kzalloc(sizeof(struct pcmcia_dynid), GFP_KERNEL); | |
112 | if (!dynid) | |
113 | return -ENOMEM; | |
114 | ||
6179b556 BW |
115 | dynid->id.match_flags = match_flags; |
116 | dynid->id.manf_id = manf_id; | |
117 | dynid->id.card_id = card_id; | |
118 | dynid->id.func_id = func_id; | |
119 | dynid->id.function = function; | |
120 | dynid->id.device_no = device_no; | |
121 | memcpy(dynid->id.prod_id_hash, prod_id_hash, sizeof(__u32) * 4); | |
122 | ||
3f565232 | 123 | mutex_lock(&pdrv->dynids.lock); |
b4b3d7bb | 124 | list_add_tail(&dynid->node, &pdrv->dynids.list); |
3f565232 | 125 | mutex_unlock(&pdrv->dynids.lock); |
6179b556 | 126 | |
cef9bc56 | 127 | retval = driver_attach(&pdrv->drv); |
6179b556 BW |
128 | |
129 | if (retval) | |
130 | return retval; | |
131 | return count; | |
132 | } | |
ad8f20a4 | 133 | static DRIVER_ATTR_WO(new_id); |
6179b556 BW |
134 | |
135 | static void | |
136 | pcmcia_free_dynids(struct pcmcia_driver *drv) | |
137 | { | |
138 | struct pcmcia_dynid *dynid, *n; | |
139 | ||
3f565232 | 140 | mutex_lock(&drv->dynids.lock); |
6179b556 BW |
141 | list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) { |
142 | list_del(&dynid->node); | |
143 | kfree(dynid); | |
144 | } | |
3f565232 | 145 | mutex_unlock(&drv->dynids.lock); |
6179b556 BW |
146 | } |
147 | ||
148 | static int | |
149 | pcmcia_create_newid_file(struct pcmcia_driver *drv) | |
150 | { | |
151 | int error = 0; | |
152 | if (drv->probe != NULL) | |
2344c6de | 153 | error = driver_create_file(&drv->drv, &driver_attr_new_id); |
6179b556 BW |
154 | return error; |
155 | } | |
156 | ||
ed283e9f AS |
157 | static void |
158 | pcmcia_remove_newid_file(struct pcmcia_driver *drv) | |
159 | { | |
160 | driver_remove_file(&drv->drv, &driver_attr_new_id); | |
161 | } | |
6179b556 | 162 | |
1da177e4 LT |
163 | /** |
164 | * pcmcia_register_driver - register a PCMCIA driver with the bus core | |
78187865 | 165 | * @driver: the &driver being registered |
1da177e4 LT |
166 | * |
167 | * Registers a PCMCIA driver with the PCMCIA bus core. | |
168 | */ | |
1da177e4 LT |
169 | int pcmcia_register_driver(struct pcmcia_driver *driver) |
170 | { | |
6179b556 BW |
171 | int error; |
172 | ||
1da177e4 LT |
173 | if (!driver) |
174 | return -EINVAL; | |
175 | ||
23a83bfe DB |
176 | pcmcia_check_driver(driver); |
177 | ||
1da177e4 LT |
178 | /* initialize common fields */ |
179 | driver->drv.bus = &pcmcia_bus_type; | |
180 | driver->drv.owner = driver->owner; | |
2e9b981a | 181 | driver->drv.name = driver->name; |
3f565232 | 182 | mutex_init(&driver->dynids.lock); |
6179b556 | 183 | INIT_LIST_HEAD(&driver->dynids.list); |
1da177e4 | 184 | |
2e9b981a | 185 | pr_debug("registering driver %s\n", driver->name); |
d9d9ea01 | 186 | |
6179b556 BW |
187 | error = driver_register(&driver->drv); |
188 | if (error < 0) | |
189 | return error; | |
190 | ||
191 | error = pcmcia_create_newid_file(driver); | |
192 | if (error) | |
193 | driver_unregister(&driver->drv); | |
194 | ||
195 | return error; | |
1da177e4 LT |
196 | } |
197 | EXPORT_SYMBOL(pcmcia_register_driver); | |
198 | ||
199 | /** | |
200 | * pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core | |
78187865 | 201 | * @driver: the &driver being unregistered |
1da177e4 LT |
202 | */ |
203 | void pcmcia_unregister_driver(struct pcmcia_driver *driver) | |
204 | { | |
2e9b981a | 205 | pr_debug("unregistering driver %s\n", driver->name); |
ed283e9f | 206 | pcmcia_remove_newid_file(driver); |
1da177e4 | 207 | driver_unregister(&driver->drv); |
6179b556 | 208 | pcmcia_free_dynids(driver); |
1da177e4 LT |
209 | } |
210 | EXPORT_SYMBOL(pcmcia_unregister_driver); | |
211 | ||
1da177e4 LT |
212 | |
213 | /* pcmcia_device handling */ | |
214 | ||
5716d415 | 215 | static struct pcmcia_device *pcmcia_get_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
216 | { |
217 | struct device *tmp_dev; | |
218 | tmp_dev = get_device(&p_dev->dev); | |
219 | if (!tmp_dev) | |
220 | return NULL; | |
221 | return to_pcmcia_dev(tmp_dev); | |
222 | } | |
223 | ||
5716d415 | 224 | static void pcmcia_put_dev(struct pcmcia_device *p_dev) |
1da177e4 LT |
225 | { |
226 | if (p_dev) | |
227 | put_device(&p_dev->dev); | |
228 | } | |
229 | ||
360b65b9 DB |
230 | static void pcmcia_release_function(struct kref *ref) |
231 | { | |
232 | struct config_t *c = container_of(ref, struct config_t, ref); | |
d50dbec3 | 233 | pr_debug("releasing config_t\n"); |
360b65b9 DB |
234 | kfree(c); |
235 | } | |
236 | ||
1da177e4 LT |
237 | static void pcmcia_release_dev(struct device *dev) |
238 | { | |
239 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
44961a03 | 240 | int i; |
d50dbec3 | 241 | dev_dbg(dev, "releasing device\n"); |
dc109497 | 242 | pcmcia_put_socket(p_dev->socket); |
44961a03 DB |
243 | for (i = 0; i < 4; i++) |
244 | kfree(p_dev->prod_id[i]); | |
bd65a685 | 245 | kfree(p_dev->devname); |
360b65b9 | 246 | kref_put(&p_dev->function_config->ref, pcmcia_release_function); |
1da177e4 LT |
247 | kfree(p_dev); |
248 | } | |
249 | ||
250 | ||
9fea84f4 | 251 | static int pcmcia_device_probe(struct device *dev) |
1da177e4 LT |
252 | { |
253 | struct pcmcia_device *p_dev; | |
254 | struct pcmcia_driver *p_drv; | |
f8cfa618 | 255 | struct pcmcia_socket *s; |
af2b3b50 | 256 | cistpl_config_t cis_config; |
1da177e4 LT |
257 | int ret = 0; |
258 | ||
259 | dev = get_device(dev); | |
260 | if (!dev) | |
261 | return -ENODEV; | |
262 | ||
263 | p_dev = to_pcmcia_dev(dev); | |
264 | p_drv = to_pcmcia_drv(dev->driver); | |
f8cfa618 | 265 | s = p_dev->socket; |
1da177e4 | 266 | |
2e9b981a | 267 | dev_dbg(dev, "trying to bind to %s\n", p_drv->name); |
d9d9ea01 | 268 | |
360b65b9 DB |
269 | if ((!p_drv->probe) || (!p_dev->function_config) || |
270 | (!try_module_get(p_drv->owner))) { | |
1da177e4 LT |
271 | ret = -EINVAL; |
272 | goto put_dev; | |
273 | } | |
274 | ||
af2b3b50 DB |
275 | /* set up some more device information */ |
276 | ret = pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_CONFIG, | |
277 | &cis_config); | |
278 | if (!ret) { | |
7feabb64 DB |
279 | p_dev->config_base = cis_config.base; |
280 | p_dev->config_regs = cis_config.rmask[0]; | |
1cc745d1 DB |
281 | dev_dbg(dev, "base %x, regs %x", p_dev->config_base, |
282 | p_dev->config_regs); | |
af2b3b50 | 283 | } else { |
f2e6cf76 JP |
284 | dev_info(dev, |
285 | "pcmcia: could not parse base and rmask0 of CIS\n"); | |
7feabb64 DB |
286 | p_dev->config_base = 0; |
287 | p_dev->config_regs = 0; | |
af2b3b50 DB |
288 | } |
289 | ||
f8cfa618 | 290 | ret = p_drv->probe(p_dev); |
d9d9ea01 | 291 | if (ret) { |
d50dbec3 | 292 | dev_dbg(dev, "binding to %s failed with %d\n", |
2e9b981a | 293 | p_drv->name, ret); |
82d56e6d | 294 | goto put_module; |
d9d9ea01 | 295 | } |
2e9b981a | 296 | dev_dbg(dev, "%s bound: Vpp %d.%d, idx %x, IRQ %d", p_drv->name, |
1cc745d1 DB |
297 | p_dev->vpp/10, p_dev->vpp%10, p_dev->config_index, p_dev->irq); |
298 | dev_dbg(dev, "resources: ioport %pR %pR iomem %pR %pR %pR", | |
299 | p_dev->resource[0], p_dev->resource[1], p_dev->resource[2], | |
300 | p_dev->resource[3], p_dev->resource[4]); | |
82d56e6d | 301 | |
00ce99ff | 302 | mutex_lock(&s->ops_mutex); |
ce3f9d71 | 303 | if ((s->pcmcia_pfc) && |
82d56e6d | 304 | (p_dev->socket->device_count == 1) && (p_dev->device_no == 0)) |
aa584ca4 | 305 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY); |
00ce99ff | 306 | mutex_unlock(&s->ops_mutex); |
f8cfa618 | 307 | |
cec5eb7b | 308 | put_module: |
1da177e4 LT |
309 | if (ret) |
310 | module_put(p_drv->owner); | |
cec5eb7b | 311 | put_dev: |
f8cfa618 | 312 | if (ret) |
1da177e4 | 313 | put_device(dev); |
9fea84f4 | 314 | return ret; |
1da177e4 LT |
315 | } |
316 | ||
317 | ||
d6ff5a85 DB |
318 | /* |
319 | * Removes a PCMCIA card from the device tree and socket list. | |
320 | */ | |
321 | static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *leftover) | |
322 | { | |
323 | struct pcmcia_device *p_dev; | |
324 | struct pcmcia_device *tmp; | |
d6ff5a85 | 325 | |
d50dbec3 | 326 | dev_dbg(leftover ? &leftover->dev : &s->dev, |
ac449d6e DB |
327 | "pcmcia_card_remove(%d) %s\n", s->sock, |
328 | leftover ? leftover->devname : ""); | |
d6ff5a85 | 329 | |
00ce99ff | 330 | mutex_lock(&s->ops_mutex); |
d6ff5a85 DB |
331 | if (!leftover) |
332 | s->device_count = 0; | |
333 | else | |
334 | s->device_count = 1; | |
00ce99ff | 335 | mutex_unlock(&s->ops_mutex); |
d6ff5a85 DB |
336 | |
337 | /* unregister all pcmcia_devices registered with this socket, except leftover */ | |
338 | list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) { | |
339 | if (p_dev == leftover) | |
340 | continue; | |
341 | ||
00ce99ff | 342 | mutex_lock(&s->ops_mutex); |
d6ff5a85 | 343 | list_del(&p_dev->socket_device_list); |
00ce99ff | 344 | mutex_unlock(&s->ops_mutex); |
d6ff5a85 | 345 | |
d50dbec3 | 346 | dev_dbg(&p_dev->dev, "unregistering device\n"); |
d6ff5a85 DB |
347 | device_unregister(&p_dev->dev); |
348 | } | |
349 | ||
350 | return; | |
351 | } | |
352 | ||
9fea84f4 | 353 | static int pcmcia_device_remove(struct device *dev) |
1da177e4 LT |
354 | { |
355 | struct pcmcia_device *p_dev; | |
356 | struct pcmcia_driver *p_drv; | |
cc3b4866 | 357 | int i; |
1da177e4 | 358 | |
1da177e4 LT |
359 | p_dev = to_pcmcia_dev(dev); |
360 | p_drv = to_pcmcia_drv(dev->driver); | |
d6ff5a85 | 361 | |
d50dbec3 | 362 | dev_dbg(dev, "removing device\n"); |
d9d9ea01 | 363 | |
d6ff5a85 DB |
364 | /* If we're removing the primary module driving a |
365 | * pseudo multi-function card, we need to unbind | |
366 | * all devices | |
367 | */ | |
ce3f9d71 | 368 | if ((p_dev->socket->pcmcia_pfc) && |
e6e4f397 | 369 | (p_dev->socket->device_count > 0) && |
d6ff5a85 DB |
370 | (p_dev->device_no == 0)) |
371 | pcmcia_card_remove(p_dev->socket, p_dev); | |
372 | ||
373 | /* detach the "instance" */ | |
f3990715 DB |
374 | if (!p_drv) |
375 | return 0; | |
1da177e4 | 376 | |
f3990715 | 377 | if (p_drv->remove) |
9fea84f4 | 378 | p_drv->remove(p_dev); |
cc3b4866 | 379 | |
f3990715 | 380 | /* check for proper unloading */ |
e2d40963 | 381 | if (p_dev->_irq || p_dev->_io || p_dev->_locked) |
f2e6cf76 JP |
382 | dev_info(dev, |
383 | "pcmcia: driver %s did not release config properly\n", | |
384 | p_drv->name); | |
cc3b4866 | 385 | |
f3990715 | 386 | for (i = 0; i < MAX_WIN; i++) |
e2d40963 | 387 | if (p_dev->_win & CLIENT_WIN_REQ(i)) |
f2e6cf76 JP |
388 | dev_info(dev, |
389 | "pcmcia: driver %s did not release window properly\n", | |
390 | p_drv->name); | |
cc3b4866 | 391 | |
f3990715 DB |
392 | /* references from pcmcia_probe_device */ |
393 | pcmcia_put_dev(p_dev); | |
394 | module_put(p_drv->owner); | |
1da177e4 LT |
395 | |
396 | return 0; | |
397 | } | |
398 | ||
399 | ||
1da177e4 LT |
400 | /* |
401 | * pcmcia_device_query -- determine information about a pcmcia device | |
402 | */ | |
403 | static int pcmcia_device_query(struct pcmcia_device *p_dev) | |
404 | { | |
405 | cistpl_manfid_t manf_id; | |
406 | cistpl_funcid_t func_id; | |
76fa82fb | 407 | cistpl_vers_1_t *vers1; |
1da177e4 LT |
408 | unsigned int i; |
409 | ||
76fa82fb IM |
410 | vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL); |
411 | if (!vers1) | |
412 | return -ENOMEM; | |
413 | ||
84897fc0 | 414 | if (!pccard_read_tuple(p_dev->socket, BIND_FN_ALL, |
1da177e4 | 415 | CISTPL_MANFID, &manf_id)) { |
af461fc1 | 416 | mutex_lock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
417 | p_dev->manf_id = manf_id.manf; |
418 | p_dev->card_id = manf_id.card; | |
419 | p_dev->has_manf_id = 1; | |
420 | p_dev->has_card_id = 1; | |
af461fc1 | 421 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
422 | } |
423 | ||
424 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, | |
425 | CISTPL_FUNCID, &func_id)) { | |
af461fc1 | 426 | mutex_lock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
427 | p_dev->func_id = func_id.func; |
428 | p_dev->has_func_id = 1; | |
af461fc1 | 429 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
430 | } else { |
431 | /* rule of thumb: cards with no FUNCID, but with | |
432 | * common memory device geometry information, are | |
433 | * probably memory cards (from pcmcia-cs) */ | |
76fa82fb IM |
434 | cistpl_device_geo_t *devgeo; |
435 | ||
436 | devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL); | |
437 | if (!devgeo) { | |
438 | kfree(vers1); | |
439 | return -ENOMEM; | |
440 | } | |
1da177e4 | 441 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
76fa82fb | 442 | CISTPL_DEVICE_GEO, devgeo)) { |
d50dbec3 | 443 | dev_dbg(&p_dev->dev, |
ac449d6e DB |
444 | "mem device geometry probably means " |
445 | "FUNCID_MEMORY\n"); | |
af461fc1 | 446 | mutex_lock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
447 | p_dev->func_id = CISTPL_FUNCID_MEMORY; |
448 | p_dev->has_func_id = 1; | |
af461fc1 | 449 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 | 450 | } |
76fa82fb | 451 | kfree(devgeo); |
1da177e4 LT |
452 | } |
453 | ||
84897fc0 | 454 | if (!pccard_read_tuple(p_dev->socket, BIND_FN_ALL, CISTPL_VERS_1, |
76fa82fb | 455 | vers1)) { |
af461fc1 | 456 | mutex_lock(&p_dev->socket->ops_mutex); |
c5e09528 | 457 | for (i = 0; i < min_t(unsigned int, 4, vers1->ns); i++) { |
1da177e4 LT |
458 | char *tmp; |
459 | unsigned int length; | |
44961a03 | 460 | char *new; |
1da177e4 | 461 | |
76fa82fb | 462 | tmp = vers1->str + vers1->ofs[i]; |
1da177e4 LT |
463 | |
464 | length = strlen(tmp) + 1; | |
6e3d4f25 | 465 | if ((length < 2) || (length > 255)) |
1da177e4 LT |
466 | continue; |
467 | ||
7c22e645 | 468 | new = kstrdup(tmp, GFP_KERNEL); |
44961a03 | 469 | if (!new) |
1da177e4 LT |
470 | continue; |
471 | ||
44961a03 DB |
472 | tmp = p_dev->prod_id[i]; |
473 | p_dev->prod_id[i] = new; | |
474 | kfree(tmp); | |
1da177e4 | 475 | } |
af461fc1 | 476 | mutex_unlock(&p_dev->socket->ops_mutex); |
1da177e4 LT |
477 | } |
478 | ||
76fa82fb | 479 | kfree(vers1); |
1da177e4 LT |
480 | return 0; |
481 | } | |
482 | ||
483 | ||
5716d415 DB |
484 | static struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, |
485 | unsigned int function) | |
1da177e4 | 486 | { |
360b65b9 | 487 | struct pcmcia_device *p_dev, *tmp_dev; |
44961a03 | 488 | int i; |
1da177e4 | 489 | |
dc109497 | 490 | s = pcmcia_get_socket(s); |
1da177e4 LT |
491 | if (!s) |
492 | return NULL; | |
493 | ||
d50dbec3 | 494 | pr_debug("adding device to %d, function %d\n", s->sock, function); |
d9d9ea01 | 495 | |
8084b372 | 496 | p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL); |
1da177e4 LT |
497 | if (!p_dev) |
498 | goto err_put; | |
1da177e4 | 499 | |
00ce99ff | 500 | mutex_lock(&s->ops_mutex); |
1da177e4 | 501 | p_dev->device_no = (s->device_count++); |
00ce99ff | 502 | mutex_unlock(&s->ops_mutex); |
e6e4f397 | 503 | |
7d7ba8d3 DB |
504 | /* max of 2 PFC devices */ |
505 | if ((p_dev->device_no >= 2) && (function == 0)) | |
506 | goto err_free; | |
507 | ||
508 | /* max of 4 devices overall */ | |
509 | if (p_dev->device_no >= 4) | |
e6e4f397 DB |
510 | goto err_free; |
511 | ||
512 | p_dev->socket = s; | |
1da177e4 LT |
513 | p_dev->func = function; |
514 | ||
515 | p_dev->dev.bus = &pcmcia_bus_type; | |
87373318 | 516 | p_dev->dev.parent = s->dev.parent; |
1da177e4 | 517 | p_dev->dev.release = pcmcia_release_dev; |
43d9f7fd JB |
518 | /* by default don't allow DMA */ |
519 | p_dev->dma_mask = DMA_MASK_NONE; | |
520 | p_dev->dev.dma_mask = &p_dev->dma_mask; | |
25096986 KS |
521 | dev_set_name(&p_dev->dev, "%d.%d", p_dev->socket->sock, p_dev->device_no); |
522 | if (!dev_name(&p_dev->dev)) | |
523 | goto err_free; | |
524 | p_dev->devname = kasprintf(GFP_KERNEL, "pcmcia%s", dev_name(&p_dev->dev)); | |
bd65a685 BG |
525 | if (!p_dev->devname) |
526 | goto err_free; | |
d50dbec3 | 527 | dev_dbg(&p_dev->dev, "devname is %s\n", p_dev->devname); |
1da177e4 | 528 | |
00ce99ff | 529 | mutex_lock(&s->ops_mutex); |
360b65b9 DB |
530 | |
531 | /* | |
532 | * p_dev->function_config must be the same for all card functions. | |
a60f22c4 DB |
533 | * Note that this is serialized by ops_mutex, so that only one |
534 | * such struct will be created. | |
360b65b9 | 535 | */ |
9fea84f4 DB |
536 | list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list) |
537 | if (p_dev->func == tmp_dev->func) { | |
360b65b9 | 538 | p_dev->function_config = tmp_dev->function_config; |
3e879f61 | 539 | p_dev->irq = tmp_dev->irq; |
360b65b9 DB |
540 | kref_get(&p_dev->function_config->ref); |
541 | } | |
542 | ||
543 | /* Add to the list in pcmcia_bus_socket */ | |
6171b88b | 544 | list_add(&p_dev->socket_device_list, &s->devices_list); |
360b65b9 | 545 | |
6f0f38c4 DB |
546 | if (pcmcia_setup_irq(p_dev)) |
547 | dev_warn(&p_dev->dev, | |
548 | "IRQ setup failed -- device might not work\n"); | |
1da177e4 | 549 | |
360b65b9 | 550 | if (!p_dev->function_config) { |
2ce4905e | 551 | config_t *c; |
d50dbec3 | 552 | dev_dbg(&p_dev->dev, "creating config_t\n"); |
2ce4905e DB |
553 | c = kzalloc(sizeof(struct config_t), GFP_KERNEL); |
554 | if (!c) { | |
6f0f38c4 | 555 | mutex_unlock(&s->ops_mutex); |
360b65b9 | 556 | goto err_unreg; |
6f0f38c4 | 557 | } |
2ce4905e DB |
558 | p_dev->function_config = c; |
559 | kref_init(&c->ref); | |
560 | for (i = 0; i < MAX_IO_WIN; i++) { | |
ad0c7be2 | 561 | c->io[i].name = p_dev->devname; |
2ce4905e DB |
562 | c->io[i].flags = IORESOURCE_IO; |
563 | } | |
46f533cc | 564 | for (i = 0; i < MAX_WIN; i++) { |
ad0c7be2 | 565 | c->mem[i].name = p_dev->devname; |
0ca724d3 DB |
566 | c->mem[i].flags = IORESOURCE_MEM; |
567 | } | |
360b65b9 | 568 | } |
2ce4905e DB |
569 | for (i = 0; i < MAX_IO_WIN; i++) |
570 | p_dev->resource[i] = &p_dev->function_config->io[i]; | |
0ca724d3 DB |
571 | for (; i < (MAX_IO_WIN + MAX_WIN); i++) |
572 | p_dev->resource[i] = &p_dev->function_config->mem[i-MAX_IO_WIN]; | |
2ce4905e | 573 | |
6f0f38c4 | 574 | mutex_unlock(&s->ops_mutex); |
360b65b9 | 575 | |
f2e6cf76 | 576 | dev_notice(&p_dev->dev, "pcmcia: registering new device %s (IRQ: %d)\n", |
eb14120f | 577 | p_dev->devname, p_dev->irq); |
807277cb | 578 | |
1ad275e3 DB |
579 | pcmcia_device_query(p_dev); |
580 | ||
360b65b9 DB |
581 | if (device_register(&p_dev->dev)) |
582 | goto err_unreg; | |
1da177e4 | 583 | |
1da177e4 LT |
584 | return p_dev; |
585 | ||
360b65b9 | 586 | err_unreg: |
00ce99ff | 587 | mutex_lock(&s->ops_mutex); |
360b65b9 | 588 | list_del(&p_dev->socket_device_list); |
00ce99ff | 589 | mutex_unlock(&s->ops_mutex); |
360b65b9 | 590 | |
1da177e4 | 591 | err_free: |
00ce99ff | 592 | mutex_lock(&s->ops_mutex); |
e6e4f397 | 593 | s->device_count--; |
00ce99ff | 594 | mutex_unlock(&s->ops_mutex); |
e6e4f397 | 595 | |
44961a03 DB |
596 | for (i = 0; i < 4; i++) |
597 | kfree(p_dev->prod_id[i]); | |
bd65a685 | 598 | kfree(p_dev->devname); |
1da177e4 | 599 | kfree(p_dev); |
1da177e4 | 600 | err_put: |
dc109497 | 601 | pcmcia_put_socket(s); |
1da177e4 LT |
602 | |
603 | return NULL; | |
604 | } | |
605 | ||
606 | ||
607 | static int pcmcia_card_add(struct pcmcia_socket *s) | |
608 | { | |
1da177e4 | 609 | cistpl_longlink_mfc_t mfc; |
c5081d5f | 610 | unsigned int no_funcs, i, no_chains; |
cfe5d809 | 611 | int ret = -EAGAIN; |
1da177e4 | 612 | |
cfe5d809 | 613 | mutex_lock(&s->ops_mutex); |
d9d9ea01 | 614 | if (!(s->resource_setup_done)) { |
d50dbec3 | 615 | dev_dbg(&s->dev, |
ac449d6e | 616 | "no resources available, delaying card_add\n"); |
cfe5d809 | 617 | mutex_unlock(&s->ops_mutex); |
1da177e4 | 618 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 619 | } |
1da177e4 | 620 | |
d9d9ea01 | 621 | if (pcmcia_validate_mem(s)) { |
d50dbec3 | 622 | dev_dbg(&s->dev, "validating mem resources failed, " |
d9d9ea01 | 623 | "delaying card_add\n"); |
cfe5d809 | 624 | mutex_unlock(&s->ops_mutex); |
de75914e | 625 | return -EAGAIN; /* try again, but later... */ |
d9d9ea01 | 626 | } |
cfe5d809 | 627 | mutex_unlock(&s->ops_mutex); |
de75914e | 628 | |
84897fc0 | 629 | ret = pccard_validate_cis(s, &no_chains); |
c5081d5f | 630 | if (ret || !no_chains) { |
e8e68fd8 DB |
631 | #if defined(CONFIG_MTD_PCMCIA_ANONYMOUS) |
632 | /* Set up as an anonymous card. If we don't have anonymous | |
633 | memory support then just error the card as there is no | |
634 | point trying to second guess. | |
635 | ||
636 | Note: some cards have just a device entry, it may be | |
637 | worth extending support to cover these in future */ | |
638 | if (ret == -EIO) { | |
639 | dev_info(&s->dev, "no CIS, assuming an anonymous memory card.\n"); | |
640 | pcmcia_replace_cis(s, "\xFF", 1); | |
641 | no_chains = 1; | |
642 | ret = 0; | |
643 | } else | |
644 | #endif | |
645 | { | |
646 | dev_dbg(&s->dev, "invalid CIS or invalid resources\n"); | |
647 | return -ENODEV; | |
648 | } | |
1da177e4 LT |
649 | } |
650 | ||
651 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) | |
652 | no_funcs = mfc.nfn; | |
653 | else | |
654 | no_funcs = 1; | |
1d2c9042 | 655 | s->functions = no_funcs; |
1da177e4 | 656 | |
9fea84f4 | 657 | for (i = 0; i < no_funcs; i++) |
dc109497 | 658 | pcmcia_device_add(s, i); |
1da177e4 | 659 | |
9fea84f4 | 660 | return ret; |
1da177e4 LT |
661 | } |
662 | ||
663 | ||
46f533cc | 664 | static int pcmcia_requery_callback(struct device *dev, void *_data) |
ff1fa9ef | 665 | { |
e2f0b534 | 666 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
d9d9ea01 | 667 | if (!p_dev->dev.driver) { |
d50dbec3 | 668 | dev_dbg(dev, "update device information\n"); |
e2f0b534 | 669 | pcmcia_device_query(p_dev); |
d9d9ea01 | 670 | } |
e2f0b534 DB |
671 | |
672 | return 0; | |
673 | } | |
674 | ||
aa584ca4 | 675 | |
af461fc1 | 676 | static void pcmcia_requery(struct pcmcia_socket *s) |
e2f0b534 | 677 | { |
04de0816 | 678 | int has_pfc; |
4ae1cbf1 | 679 | |
8402641b AC |
680 | if (!(s->state & SOCKET_PRESENT)) |
681 | return; | |
682 | ||
af461fc1 DB |
683 | if (s->functions == 0) { |
684 | pcmcia_card_add(s); | |
685 | return; | |
e2f0b534 DB |
686 | } |
687 | ||
688 | /* some device information might have changed because of a CIS | |
689 | * update or because we can finally read it correctly... so | |
690 | * determine it again, overwriting old values if necessary. */ | |
af461fc1 DB |
691 | bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery_callback); |
692 | ||
693 | /* if the CIS changed, we need to check whether the number of | |
694 | * functions changed. */ | |
695 | if (s->fake_cis) { | |
696 | int old_funcs, new_funcs; | |
697 | cistpl_longlink_mfc_t mfc; | |
698 | ||
699 | /* does this cis override add or remove functions? */ | |
700 | old_funcs = s->functions; | |
701 | ||
702 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, | |
703 | &mfc)) | |
704 | new_funcs = mfc.nfn; | |
705 | else | |
706 | new_funcs = 1; | |
b1095afe DB |
707 | if (old_funcs != new_funcs) { |
708 | /* we need to re-start */ | |
af461fc1 | 709 | pcmcia_card_remove(s, NULL); |
b83156b5 | 710 | s->functions = 0; |
af461fc1 | 711 | pcmcia_card_add(s); |
af461fc1 DB |
712 | } |
713 | } | |
e2f0b534 | 714 | |
aa584ca4 DB |
715 | /* If the PCMCIA device consists of two pseudo devices, |
716 | * call pcmcia_device_add() -- which will fail if both | |
717 | * devices are already registered. */ | |
718 | mutex_lock(&s->ops_mutex); | |
ce3f9d71 | 719 | has_pfc = s->pcmcia_pfc; |
aa584ca4 DB |
720 | mutex_unlock(&s->ops_mutex); |
721 | if (has_pfc) | |
722 | pcmcia_device_add(s, 0); | |
723 | ||
e2f0b534 DB |
724 | /* we re-scan all devices, not just the ones connected to this |
725 | * socket. This does not matter, though. */ | |
af461fc1 DB |
726 | if (bus_rescan_devices(&pcmcia_bus_type)) |
727 | dev_warn(&s->dev, "rescanning the bus failed\n"); | |
ff1fa9ef | 728 | } |
1ad275e3 | 729 | |
af461fc1 | 730 | |
1d2c9042 DB |
731 | #ifdef CONFIG_PCMCIA_LOAD_CIS |
732 | ||
733 | /** | |
734 | * pcmcia_load_firmware - load CIS from userspace if device-provided is broken | |
78187865 RD |
735 | * @dev: the pcmcia device which needs a CIS override |
736 | * @filename: requested filename in /lib/firmware/ | |
1d2c9042 DB |
737 | * |
738 | * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if | |
739 | * the one provided by the card is broken. The firmware files reside in | |
740 | * /lib/firmware/ in userspace. | |
741 | */ | |
46f533cc | 742 | static int pcmcia_load_firmware(struct pcmcia_device *dev, char *filename) |
1d2c9042 DB |
743 | { |
744 | struct pcmcia_socket *s = dev->socket; | |
745 | const struct firmware *fw; | |
1d2c9042 | 746 | int ret = -ENOMEM; |
b1095afe DB |
747 | cistpl_longlink_mfc_t mfc; |
748 | int old_funcs, new_funcs = 1; | |
1d2c9042 DB |
749 | |
750 | if (!filename) | |
751 | return -EINVAL; | |
752 | ||
d50dbec3 | 753 | dev_dbg(&dev->dev, "trying to load CIS file %s\n", filename); |
1d2c9042 | 754 | |
ed62acec | 755 | if (request_firmware(&fw, filename, &dev->dev) == 0) { |
d9d9ea01 DB |
756 | if (fw->size >= CISTPL_MAX_CIS_SIZE) { |
757 | ret = -EINVAL; | |
f2e6cf76 | 758 | dev_err(&dev->dev, "pcmcia: CIS override is too big\n"); |
1d2c9042 | 759 | goto release; |
d9d9ea01 | 760 | } |
1d2c9042 | 761 | |
53efec95 | 762 | if (!pcmcia_replace_cis(s, fw->data, fw->size)) |
1d2c9042 | 763 | ret = 0; |
d9d9ea01 | 764 | else { |
f2e6cf76 | 765 | dev_err(&dev->dev, "pcmcia: CIS override failed\n"); |
d9d9ea01 DB |
766 | goto release; |
767 | } | |
768 | ||
b1095afe DB |
769 | /* we need to re-start if the number of functions changed */ |
770 | old_funcs = s->functions; | |
771 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, | |
772 | &mfc)) | |
773 | new_funcs = mfc.nfn; | |
774 | ||
775 | if (old_funcs != new_funcs) | |
776 | ret = -EBUSY; | |
1d2c9042 DB |
777 | |
778 | /* update information */ | |
779 | pcmcia_device_query(dev); | |
780 | ||
aa584ca4 DB |
781 | /* requery (as number of functions might have changed) */ |
782 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY); | |
1d2c9042 DB |
783 | } |
784 | release: | |
785 | release_firmware(fw); | |
786 | ||
9fea84f4 | 787 | return ret; |
1d2c9042 DB |
788 | } |
789 | ||
790 | #else /* !CONFIG_PCMCIA_LOAD_CIS */ | |
791 | ||
46f533cc LN |
792 | static inline int pcmcia_load_firmware(struct pcmcia_device *dev, |
793 | char *filename) | |
1d2c9042 DB |
794 | { |
795 | return -ENODEV; | |
796 | } | |
797 | ||
798 | #endif | |
799 | ||
800 | ||
1ad275e3 | 801 | static inline int pcmcia_devmatch(struct pcmcia_device *dev, |
e9fb13bf | 802 | const struct pcmcia_device_id *did) |
1ad275e3 DB |
803 | { |
804 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) { | |
805 | if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id)) | |
806 | return 0; | |
807 | } | |
808 | ||
809 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) { | |
810 | if ((!dev->has_card_id) || (dev->card_id != did->card_id)) | |
811 | return 0; | |
812 | } | |
813 | ||
814 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) { | |
815 | if (dev->func != did->function) | |
816 | return 0; | |
817 | } | |
818 | ||
819 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) { | |
820 | if (!dev->prod_id[0]) | |
821 | return 0; | |
822 | if (strcmp(did->prod_id[0], dev->prod_id[0])) | |
823 | return 0; | |
824 | } | |
825 | ||
826 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) { | |
827 | if (!dev->prod_id[1]) | |
828 | return 0; | |
829 | if (strcmp(did->prod_id[1], dev->prod_id[1])) | |
830 | return 0; | |
831 | } | |
832 | ||
833 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) { | |
834 | if (!dev->prod_id[2]) | |
835 | return 0; | |
836 | if (strcmp(did->prod_id[2], dev->prod_id[2])) | |
837 | return 0; | |
838 | } | |
839 | ||
840 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) { | |
841 | if (!dev->prod_id[3]) | |
842 | return 0; | |
843 | if (strcmp(did->prod_id[3], dev->prod_id[3])) | |
844 | return 0; | |
845 | } | |
846 | ||
847 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { | |
83bf6f11 | 848 | dev_dbg(&dev->dev, "this is a pseudo-multi-function device\n"); |
aa584ca4 | 849 | mutex_lock(&dev->socket->ops_mutex); |
ce3f9d71 | 850 | dev->socket->pcmcia_pfc = 1; |
aa584ca4 | 851 | mutex_unlock(&dev->socket->ops_mutex); |
83bf6f11 AK |
852 | if (dev->device_no != did->device_no) |
853 | return 0; | |
1ad275e3 DB |
854 | } |
855 | ||
856 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { | |
94a819f8 DB |
857 | int ret; |
858 | ||
1ad275e3 DB |
859 | if ((!dev->has_func_id) || (dev->func_id != did->func_id)) |
860 | return 0; | |
861 | ||
862 | /* if this is a pseudo-multi-function device, | |
863 | * we need explicit matches */ | |
ce3f9d71 | 864 | if (dev->socket->pcmcia_pfc) |
1ad275e3 DB |
865 | return 0; |
866 | if (dev->device_no) | |
867 | return 0; | |
868 | ||
869 | /* also, FUNC_ID matching needs to be activated by userspace | |
870 | * after it has re-checked that there is no possible module | |
871 | * with a prod_id/manf_id/card_id match. | |
872 | */ | |
94a819f8 DB |
873 | mutex_lock(&dev->socket->ops_mutex); |
874 | ret = dev->allow_func_id_match; | |
875 | mutex_unlock(&dev->socket->ops_mutex); | |
876 | ||
877 | if (!ret) { | |
878 | dev_dbg(&dev->dev, | |
879 | "skipping FUNC_ID match until userspace ACK\n"); | |
1ad275e3 | 880 | return 0; |
94a819f8 | 881 | } |
1ad275e3 DB |
882 | } |
883 | ||
ea7b3882 | 884 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { |
d50dbec3 | 885 | dev_dbg(&dev->dev, "device needs a fake CIS\n"); |
daa9517d | 886 | if (!dev->socket->fake_cis) |
b1095afe DB |
887 | if (pcmcia_load_firmware(dev, did->cisfile)) |
888 | return 0; | |
ea7b3882 DB |
889 | } |
890 | ||
f602ff7e DB |
891 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { |
892 | int i; | |
9fea84f4 | 893 | for (i = 0; i < 4; i++) |
f602ff7e DB |
894 | if (dev->prod_id[i]) |
895 | return 0; | |
896 | if (dev->has_manf_id || dev->has_card_id || dev->has_func_id) | |
897 | return 0; | |
898 | } | |
899 | ||
1ad275e3 DB |
900 | return 1; |
901 | } | |
902 | ||
903 | ||
9fea84f4 DB |
904 | static int pcmcia_bus_match(struct device *dev, struct device_driver *drv) |
905 | { | |
906 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
907 | struct pcmcia_driver *p_drv = to_pcmcia_drv(drv); | |
e9fb13bf | 908 | const struct pcmcia_device_id *did = p_drv->id_table; |
6179b556 BW |
909 | struct pcmcia_dynid *dynid; |
910 | ||
911 | /* match dynamic devices first */ | |
3f565232 | 912 | mutex_lock(&p_drv->dynids.lock); |
6179b556 | 913 | list_for_each_entry(dynid, &p_drv->dynids.list, node) { |
d50dbec3 | 914 | dev_dbg(dev, "trying to match to %s\n", drv->name); |
6179b556 | 915 | if (pcmcia_devmatch(p_dev, &dynid->id)) { |
d50dbec3 | 916 | dev_dbg(dev, "matched to %s\n", drv->name); |
3f565232 | 917 | mutex_unlock(&p_drv->dynids.lock); |
6179b556 BW |
918 | return 1; |
919 | } | |
920 | } | |
3f565232 | 921 | mutex_unlock(&p_drv->dynids.lock); |
1da177e4 | 922 | |
1ad275e3 | 923 | while (did && did->match_flags) { |
d50dbec3 | 924 | dev_dbg(dev, "trying to match to %s\n", drv->name); |
d9d9ea01 | 925 | if (pcmcia_devmatch(p_dev, did)) { |
d50dbec3 | 926 | dev_dbg(dev, "matched to %s\n", drv->name); |
1ad275e3 | 927 | return 1; |
d9d9ea01 | 928 | } |
1ad275e3 DB |
929 | did++; |
930 | } | |
931 | ||
1da177e4 LT |
932 | return 0; |
933 | } | |
934 | ||
7eff2e7a | 935 | static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
840c2ac5 DB |
936 | { |
937 | struct pcmcia_device *p_dev; | |
7eff2e7a | 938 | int i; |
840c2ac5 DB |
939 | u32 hash[4] = { 0, 0, 0, 0}; |
940 | ||
941 | if (!dev) | |
942 | return -ENODEV; | |
943 | ||
944 | p_dev = to_pcmcia_dev(dev); | |
945 | ||
946 | /* calculate hashes */ | |
9fea84f4 | 947 | for (i = 0; i < 4; i++) { |
840c2ac5 DB |
948 | if (!p_dev->prod_id[i]) |
949 | continue; | |
950 | hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); | |
951 | } | |
952 | ||
7eff2e7a | 953 | if (add_uevent_var(env, "SOCKET_NO=%u", p_dev->socket->sock)) |
840c2ac5 DB |
954 | return -ENOMEM; |
955 | ||
7eff2e7a | 956 | if (add_uevent_var(env, "DEVICE_NO=%02X", p_dev->device_no)) |
840c2ac5 DB |
957 | return -ENOMEM; |
958 | ||
7eff2e7a | 959 | if (add_uevent_var(env, "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" |
312c004d KS |
960 | "pa%08Xpb%08Xpc%08Xpd%08X", |
961 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
962 | p_dev->has_card_id ? p_dev->card_id : 0, | |
963 | p_dev->has_func_id ? p_dev->func_id : 0, | |
964 | p_dev->func, | |
965 | p_dev->device_no, | |
966 | hash[0], | |
967 | hash[1], | |
968 | hash[2], | |
969 | hash[3])) | |
840c2ac5 DB |
970 | return -ENOMEM; |
971 | ||
840c2ac5 DB |
972 | return 0; |
973 | } | |
974 | ||
3f8df781 AS |
975 | /************************ runtime PM support ***************************/ |
976 | ||
ad8d52b8 | 977 | static int pcmcia_dev_suspend(struct device *dev); |
3f8df781 AS |
978 | static int pcmcia_dev_resume(struct device *dev); |
979 | ||
980 | static int runtime_suspend(struct device *dev) | |
981 | { | |
982 | int rc; | |
983 | ||
8e9394ce | 984 | device_lock(dev); |
ad8d52b8 | 985 | rc = pcmcia_dev_suspend(dev); |
8e9394ce | 986 | device_unlock(dev); |
3f8df781 AS |
987 | return rc; |
988 | } | |
989 | ||
933a838a | 990 | static int runtime_resume(struct device *dev) |
3f8df781 AS |
991 | { |
992 | int rc; | |
993 | ||
8e9394ce | 994 | device_lock(dev); |
3f8df781 | 995 | rc = pcmcia_dev_resume(dev); |
8e9394ce | 996 | device_unlock(dev); |
933a838a | 997 | return rc; |
3f8df781 AS |
998 | } |
999 | ||
1da177e4 LT |
1000 | /************************ per-device sysfs output ***************************/ |
1001 | ||
1002 | #define pcmcia_device_attr(field, test, format) \ | |
e404e274 | 1003 | static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1004 | { \ |
1005 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
9fea84f4 | 1006 | return p_dev->test ? sprintf(buf, format, p_dev->field) : -ENODEV; \ |
b9b2f367 GKH |
1007 | } \ |
1008 | static DEVICE_ATTR_RO(field); | |
1da177e4 LT |
1009 | |
1010 | #define pcmcia_device_stringattr(name, field) \ | |
e404e274 | 1011 | static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
1012 | { \ |
1013 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ | |
9fea84f4 | 1014 | return p_dev->field ? sprintf(buf, "%s\n", p_dev->field) : -ENODEV; \ |
b9b2f367 GKH |
1015 | } \ |
1016 | static DEVICE_ATTR_RO(name); | |
1da177e4 | 1017 | |
1da177e4 LT |
1018 | pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); |
1019 | pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); | |
1020 | pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); | |
1021 | pcmcia_device_stringattr(prod_id1, prod_id[0]); | |
1022 | pcmcia_device_stringattr(prod_id2, prod_id[1]); | |
1023 | pcmcia_device_stringattr(prod_id3, prod_id[2]); | |
1024 | pcmcia_device_stringattr(prod_id4, prod_id[3]); | |
1025 | ||
b9b2f367 GKH |
1026 | static ssize_t function_show(struct device *dev, struct device_attribute *attr, |
1027 | char *buf) | |
1028 | { | |
1029 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1030 | return p_dev->socket ? sprintf(buf, "0x%02x\n", p_dev->func) : -ENODEV; | |
1031 | } | |
1032 | static DEVICE_ATTR_RO(function); | |
1033 | ||
1034 | static ssize_t resources_show(struct device *dev, | |
1035 | struct device_attribute *attr, char *buf) | |
8f677ea0 DB |
1036 | { |
1037 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1038 | char *str = buf; | |
1039 | int i; | |
1040 | ||
1041 | for (i = 0; i < PCMCIA_NUM_RESOURCES; i++) | |
1042 | str += sprintf(str, "%pr\n", p_dev->resource[i]); | |
1043 | ||
1044 | return str - buf; | |
1045 | } | |
b9b2f367 | 1046 | static DEVICE_ATTR_RO(resources); |
db1019ca | 1047 | |
b9b2f367 | 1048 | static ssize_t pm_state_show(struct device *dev, struct device_attribute *attr, char *buf) |
db1019ca DB |
1049 | { |
1050 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1051 | ||
f6fbe01a | 1052 | if (p_dev->suspended) |
db1019ca DB |
1053 | return sprintf(buf, "off\n"); |
1054 | else | |
1055 | return sprintf(buf, "on\n"); | |
1056 | } | |
1057 | ||
b9b2f367 GKH |
1058 | static ssize_t pm_state_store(struct device *dev, struct device_attribute *attr, |
1059 | const char *buf, size_t count) | |
db1019ca DB |
1060 | { |
1061 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1062 | int ret = 0; | |
1063 | ||
9fea84f4 DB |
1064 | if (!count) |
1065 | return -EINVAL; | |
db1019ca | 1066 | |
f6fbe01a | 1067 | if ((!p_dev->suspended) && !strncmp(buf, "off", 3)) |
3f8df781 | 1068 | ret = runtime_suspend(dev); |
f6fbe01a | 1069 | else if (p_dev->suspended && !strncmp(buf, "on", 2)) |
933a838a | 1070 | ret = runtime_resume(dev); |
db1019ca DB |
1071 | |
1072 | return ret ? ret : count; | |
1073 | } | |
b9b2f367 | 1074 | static DEVICE_ATTR_RW(pm_state); |
db1019ca | 1075 | |
3704511b | 1076 | static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) |
3248ff43 DB |
1077 | { |
1078 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1079 | int i; | |
1080 | u32 hash[4] = { 0, 0, 0, 0}; | |
1081 | ||
1082 | /* calculate hashes */ | |
9fea84f4 | 1083 | for (i = 0; i < 4; i++) { |
3248ff43 DB |
1084 | if (!p_dev->prod_id[i]) |
1085 | continue; | |
9fea84f4 DB |
1086 | hash[i] = crc32(0, p_dev->prod_id[i], |
1087 | strlen(p_dev->prod_id[i])); | |
3248ff43 DB |
1088 | } |
1089 | return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" | |
1090 | "pa%08Xpb%08Xpc%08Xpd%08X\n", | |
1091 | p_dev->has_manf_id ? p_dev->manf_id : 0, | |
1092 | p_dev->has_card_id ? p_dev->card_id : 0, | |
1093 | p_dev->has_func_id ? p_dev->func_id : 0, | |
1094 | p_dev->func, p_dev->device_no, | |
1095 | hash[0], hash[1], hash[2], hash[3]); | |
1096 | } | |
b9b2f367 | 1097 | static DEVICE_ATTR_RO(modalias); |
a5b55778 | 1098 | |
b9b2f367 | 1099 | static ssize_t allow_func_id_match_store(struct device *dev, |
3248ff43 | 1100 | struct device_attribute *attr, const char *buf, size_t count) |
a5b55778 DB |
1101 | { |
1102 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
db1019ca DB |
1103 | |
1104 | if (!count) | |
1105 | return -EINVAL; | |
a5b55778 | 1106 | |
94a819f8 | 1107 | mutex_lock(&p_dev->socket->ops_mutex); |
a5b55778 | 1108 | p_dev->allow_func_id_match = 1; |
94a819f8 | 1109 | mutex_unlock(&p_dev->socket->ops_mutex); |
af461fc1 | 1110 | pcmcia_parse_uevents(p_dev->socket, PCMCIA_UEVENT_REQUERY); |
a5b55778 DB |
1111 | |
1112 | return count; | |
1113 | } | |
b9b2f367 GKH |
1114 | static DEVICE_ATTR_WO(allow_func_id_match); |
1115 | ||
1116 | static struct attribute *pcmcia_dev_attrs[] = { | |
1117 | &dev_attr_resources.attr, | |
1118 | &dev_attr_pm_state.attr, | |
1119 | &dev_attr_function.attr, | |
1120 | &dev_attr_func_id.attr, | |
1121 | &dev_attr_manf_id.attr, | |
1122 | &dev_attr_card_id.attr, | |
1123 | &dev_attr_prod_id1.attr, | |
1124 | &dev_attr_prod_id2.attr, | |
1125 | &dev_attr_prod_id3.attr, | |
1126 | &dev_attr_prod_id4.attr, | |
1127 | &dev_attr_modalias.attr, | |
1128 | &dev_attr_allow_func_id_match.attr, | |
1129 | NULL, | |
1da177e4 | 1130 | }; |
b9b2f367 | 1131 | ATTRIBUTE_GROUPS(pcmcia_dev); |
1da177e4 | 1132 | |
8e9e793d DB |
1133 | /* PM support, also needed for reset */ |
1134 | ||
ad8d52b8 | 1135 | static int pcmcia_dev_suspend(struct device *dev) |
8e9e793d DB |
1136 | { |
1137 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1138 | struct pcmcia_driver *p_drv = NULL; | |
f6fbe01a | 1139 | int ret = 0; |
8e9e793d | 1140 | |
94a819f8 DB |
1141 | mutex_lock(&p_dev->socket->ops_mutex); |
1142 | if (p_dev->suspended) { | |
1143 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1144 | return 0; |
94a819f8 DB |
1145 | } |
1146 | p_dev->suspended = 1; | |
1147 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1148 | |
d50dbec3 | 1149 | dev_dbg(dev, "suspending\n"); |
d9d9ea01 | 1150 | |
8e9e793d DB |
1151 | if (dev->driver) |
1152 | p_drv = to_pcmcia_drv(dev->driver); | |
1153 | ||
e2d40963 DB |
1154 | if (!p_drv) |
1155 | goto out; | |
1156 | ||
1157 | if (p_drv->suspend) { | |
8661bb5b | 1158 | ret = p_drv->suspend(p_dev); |
d9d9ea01 | 1159 | if (ret) { |
f2e6cf76 JP |
1160 | dev_err(dev, |
1161 | "pcmcia: device %s (driver %s) did not want to go to sleep (%d)\n", | |
1162 | p_dev->devname, p_drv->name, ret); | |
94a819f8 DB |
1163 | mutex_lock(&p_dev->socket->ops_mutex); |
1164 | p_dev->suspended = 0; | |
1165 | mutex_unlock(&p_dev->socket->ops_mutex); | |
f6fbe01a | 1166 | goto out; |
d9d9ea01 | 1167 | } |
8661bb5b | 1168 | } |
8e9e793d | 1169 | |
d9d9ea01 | 1170 | if (p_dev->device_no == p_dev->func) { |
d50dbec3 | 1171 | dev_dbg(dev, "releasing configuration\n"); |
e2d40963 | 1172 | pcmcia_release_configuration(p_dev); |
d9d9ea01 | 1173 | } |
e2d40963 | 1174 | |
f6fbe01a | 1175 | out: |
f6fbe01a | 1176 | return ret; |
8e9e793d DB |
1177 | } |
1178 | ||
1179 | ||
9fea84f4 | 1180 | static int pcmcia_dev_resume(struct device *dev) |
8e9e793d DB |
1181 | { |
1182 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
9fea84f4 | 1183 | struct pcmcia_driver *p_drv = NULL; |
f6fbe01a | 1184 | int ret = 0; |
8e9e793d | 1185 | |
94a819f8 DB |
1186 | mutex_lock(&p_dev->socket->ops_mutex); |
1187 | if (!p_dev->suspended) { | |
1188 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1189 | return 0; |
94a819f8 DB |
1190 | } |
1191 | p_dev->suspended = 0; | |
1192 | mutex_unlock(&p_dev->socket->ops_mutex); | |
d6b4fa6d | 1193 | |
d50dbec3 | 1194 | dev_dbg(dev, "resuming\n"); |
d9d9ea01 | 1195 | |
8e9e793d DB |
1196 | if (dev->driver) |
1197 | p_drv = to_pcmcia_drv(dev->driver); | |
1198 | ||
e2d40963 DB |
1199 | if (!p_drv) |
1200 | goto out; | |
1201 | ||
1202 | if (p_dev->device_no == p_dev->func) { | |
d50dbec3 | 1203 | dev_dbg(dev, "requesting configuration\n"); |
1ac71e5a | 1204 | ret = pcmcia_enable_device(p_dev); |
e2d40963 DB |
1205 | if (ret) |
1206 | goto out; | |
8661bb5b | 1207 | } |
8e9e793d | 1208 | |
e2d40963 DB |
1209 | if (p_drv->resume) |
1210 | ret = p_drv->resume(p_dev); | |
1211 | ||
f6fbe01a | 1212 | out: |
f6fbe01a | 1213 | return ret; |
8e9e793d DB |
1214 | } |
1215 | ||
1216 | ||
46f533cc | 1217 | static int pcmcia_bus_suspend_callback(struct device *dev, void *_data) |
8e9e793d DB |
1218 | { |
1219 | struct pcmcia_socket *skt = _data; | |
1220 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1221 | ||
3f8df781 | 1222 | if (p_dev->socket != skt || p_dev->suspended) |
8e9e793d DB |
1223 | return 0; |
1224 | ||
3f8df781 | 1225 | return runtime_suspend(dev); |
8e9e793d DB |
1226 | } |
1227 | ||
46f533cc | 1228 | static int pcmcia_bus_resume_callback(struct device *dev, void *_data) |
8e9e793d DB |
1229 | { |
1230 | struct pcmcia_socket *skt = _data; | |
1231 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); | |
1232 | ||
3f8df781 | 1233 | if (p_dev->socket != skt || !p_dev->suspended) |
8e9e793d DB |
1234 | return 0; |
1235 | ||
3f8df781 | 1236 | runtime_resume(dev); |
8e9e793d DB |
1237 | |
1238 | return 0; | |
1239 | } | |
1240 | ||
1241 | static int pcmcia_bus_resume(struct pcmcia_socket *skt) | |
1242 | { | |
d50dbec3 | 1243 | dev_dbg(&skt->dev, "resuming socket %d\n", skt->sock); |
8e9e793d DB |
1244 | bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback); |
1245 | return 0; | |
1246 | } | |
1247 | ||
1248 | static int pcmcia_bus_suspend(struct pcmcia_socket *skt) | |
1249 | { | |
d50dbec3 | 1250 | dev_dbg(&skt->dev, "suspending socket %d\n", skt->sock); |
8e9e793d DB |
1251 | if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt, |
1252 | pcmcia_bus_suspend_callback)) { | |
1253 | pcmcia_bus_resume(skt); | |
1254 | return -EIO; | |
1255 | } | |
1256 | return 0; | |
1257 | } | |
1258 | ||
7b24e798 DB |
1259 | static int pcmcia_bus_remove(struct pcmcia_socket *skt) |
1260 | { | |
1261 | atomic_set(&skt->present, 0); | |
1262 | pcmcia_card_remove(skt, NULL); | |
1da177e4 | 1263 | |
7b24e798 DB |
1264 | mutex_lock(&skt->ops_mutex); |
1265 | destroy_cis_cache(skt); | |
1266 | pcmcia_cleanup_irq(skt); | |
1267 | mutex_unlock(&skt->ops_mutex); | |
1da177e4 | 1268 | |
7b24e798 DB |
1269 | return 0; |
1270 | } | |
9fea84f4 | 1271 | |
7b24e798 DB |
1272 | static int pcmcia_bus_add(struct pcmcia_socket *skt) |
1273 | { | |
1274 | atomic_set(&skt->present, 1); | |
1da177e4 | 1275 | |
7b24e798 | 1276 | mutex_lock(&skt->ops_mutex); |
ce3f9d71 | 1277 | skt->pcmcia_pfc = 0; |
7b24e798 DB |
1278 | destroy_cis_cache(skt); /* to be on the safe side... */ |
1279 | mutex_unlock(&skt->ops_mutex); | |
1da177e4 | 1280 | |
7b24e798 | 1281 | pcmcia_card_add(skt); |
1da177e4 | 1282 | |
7b24e798 DB |
1283 | return 0; |
1284 | } | |
1617406a | 1285 | |
7b24e798 DB |
1286 | static int pcmcia_bus_early_resume(struct pcmcia_socket *skt) |
1287 | { | |
025e4ab3 | 1288 | if (!verify_cis_cache(skt)) |
7b24e798 | 1289 | return 0; |
1da177e4 | 1290 | |
7b24e798 | 1291 | dev_dbg(&skt->dev, "cis mismatch - different card\n"); |
f8cfa618 | 1292 | |
7b24e798 DB |
1293 | /* first, remove the card */ |
1294 | pcmcia_bus_remove(skt); | |
88b060d6 | 1295 | |
7b24e798 DB |
1296 | mutex_lock(&skt->ops_mutex); |
1297 | destroy_cis_cache(skt); | |
1298 | kfree(skt->fake_cis); | |
1299 | skt->fake_cis = NULL; | |
1300 | skt->functions = 0; | |
1301 | mutex_unlock(&skt->ops_mutex); | |
1da177e4 | 1302 | |
7b24e798 DB |
1303 | /* now, add the new card */ |
1304 | pcmcia_bus_add(skt); | |
1305 | return 0; | |
1306 | } | |
dc109497 | 1307 | |
1da177e4 | 1308 | |
04de0816 DB |
1309 | /* |
1310 | * NOTE: This is racy. There's no guarantee the card will still be | |
1311 | * physically present, even if the call to this function returns | |
1312 | * non-NULL. Furthermore, the device driver most likely is unbound | |
1313 | * almost immediately, so the timeframe where pcmcia_dev_present | |
1314 | * returns NULL is probably really really small. | |
1315 | */ | |
9fea84f4 | 1316 | struct pcmcia_device *pcmcia_dev_present(struct pcmcia_device *_p_dev) |
9940ec36 DB |
1317 | { |
1318 | struct pcmcia_device *p_dev; | |
1319 | struct pcmcia_device *ret = NULL; | |
1320 | ||
1321 | p_dev = pcmcia_get_dev(_p_dev); | |
1322 | if (!p_dev) | |
1323 | return NULL; | |
1324 | ||
04de0816 DB |
1325 | if (atomic_read(&p_dev->socket->present) != 0) |
1326 | ret = p_dev; | |
9940ec36 | 1327 | |
9940ec36 DB |
1328 | pcmcia_put_dev(p_dev); |
1329 | return ret; | |
1330 | } | |
1331 | EXPORT_SYMBOL(pcmcia_dev_present); | |
1332 | ||
1333 | ||
90c6cdd1 DB |
1334 | static struct pcmcia_callback pcmcia_bus_callback = { |
1335 | .owner = THIS_MODULE, | |
7b24e798 DB |
1336 | .add = pcmcia_bus_add, |
1337 | .remove = pcmcia_bus_remove, | |
af461fc1 | 1338 | .requery = pcmcia_requery, |
6e7b51a7 | 1339 | .validate = pccard_validate_cis, |
8e9e793d | 1340 | .suspend = pcmcia_bus_suspend, |
7b24e798 | 1341 | .early_resume = pcmcia_bus_early_resume, |
8e9e793d | 1342 | .resume = pcmcia_bus_resume, |
90c6cdd1 DB |
1343 | }; |
1344 | ||
34cdf25a | 1345 | static int pcmcia_bus_add_socket(struct device *dev, |
d8539d81 | 1346 | struct class_interface *class_intf) |
1da177e4 | 1347 | { |
87373318 | 1348 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 LT |
1349 | int ret; |
1350 | ||
dc109497 DB |
1351 | socket = pcmcia_get_socket(socket); |
1352 | if (!socket) { | |
f2e6cf76 | 1353 | dev_err(dev, "PCMCIA obtaining reference to socket failed\n"); |
1da177e4 LT |
1354 | return -ENODEV; |
1355 | } | |
1356 | ||
6e7b51a7 DB |
1357 | ret = sysfs_create_bin_file(&dev->kobj, &pccard_cis_attr); |
1358 | if (ret) { | |
f2e6cf76 | 1359 | dev_err(dev, "PCMCIA registration failed\n"); |
6e7b51a7 DB |
1360 | pcmcia_put_socket(socket); |
1361 | return ret; | |
1362 | } | |
1363 | ||
dc109497 | 1364 | INIT_LIST_HEAD(&socket->devices_list); |
ce3f9d71 | 1365 | socket->pcmcia_pfc = 0; |
dc109497 | 1366 | socket->device_count = 0; |
e4f1ac21 | 1367 | atomic_set(&socket->present, 0); |
1da177e4 | 1368 | |
90c6cdd1 | 1369 | ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback); |
1da177e4 | 1370 | if (ret) { |
f2e6cf76 | 1371 | dev_err(dev, "PCMCIA registration failed\n"); |
dc109497 | 1372 | pcmcia_put_socket(socket); |
9fea84f4 | 1373 | return ret; |
1da177e4 LT |
1374 | } |
1375 | ||
1376 | return 0; | |
1377 | } | |
1378 | ||
87373318 | 1379 | static void pcmcia_bus_remove_socket(struct device *dev, |
d8539d81 | 1380 | struct class_interface *class_intf) |
1da177e4 | 1381 | { |
87373318 | 1382 | struct pcmcia_socket *socket = dev_get_drvdata(dev); |
1da177e4 | 1383 | |
dc109497 | 1384 | if (!socket) |
1da177e4 LT |
1385 | return; |
1386 | ||
1387 | pccard_register_pcmcia(socket, NULL); | |
1388 | ||
dfbc9e9d | 1389 | /* unregister any unbound devices */ |
8e4d9dcb | 1390 | mutex_lock(&socket->skt_mutex); |
dfbc9e9d | 1391 | pcmcia_card_remove(socket, NULL); |
180c33ee | 1392 | release_cis_mem(socket); |
8e4d9dcb | 1393 | mutex_unlock(&socket->skt_mutex); |
dfbc9e9d | 1394 | |
6e7b51a7 DB |
1395 | sysfs_remove_bin_file(&dev->kobj, &pccard_cis_attr); |
1396 | ||
dc109497 | 1397 | pcmcia_put_socket(socket); |
1da177e4 LT |
1398 | |
1399 | return; | |
1400 | } | |
1401 | ||
1402 | ||
1403 | /* the pcmcia_bus_interface is used to handle pcmcia socket devices */ | |
ed49f5d0 | 1404 | static struct class_interface pcmcia_bus_interface __refdata = { |
1da177e4 | 1405 | .class = &pcmcia_socket_class, |
87373318 GKH |
1406 | .add_dev = &pcmcia_bus_add_socket, |
1407 | .remove_dev = &pcmcia_bus_remove_socket, | |
1da177e4 LT |
1408 | }; |
1409 | ||
ad8d52b8 RK |
1410 | static const struct dev_pm_ops pcmcia_bus_pm_ops = { |
1411 | SET_SYSTEM_SLEEP_PM_OPS(pcmcia_dev_suspend, pcmcia_dev_resume) | |
1412 | }; | |
1da177e4 | 1413 | |
e7a480d2 | 1414 | struct bus_type pcmcia_bus_type = { |
1da177e4 | 1415 | .name = "pcmcia", |
312c004d | 1416 | .uevent = pcmcia_bus_uevent, |
1da177e4 | 1417 | .match = pcmcia_bus_match, |
b9b2f367 | 1418 | .dev_groups = pcmcia_dev_groups, |
1d0baa3a RK |
1419 | .probe = pcmcia_device_probe, |
1420 | .remove = pcmcia_device_remove, | |
ad8d52b8 | 1421 | .pm = &pcmcia_bus_pm_ops, |
1da177e4 | 1422 | }; |
1da177e4 LT |
1423 | |
1424 | ||
1425 | static int __init init_pcmcia_bus(void) | |
1426 | { | |
ace7d477 RD |
1427 | int ret; |
1428 | ||
ace7d477 RD |
1429 | ret = bus_register(&pcmcia_bus_type); |
1430 | if (ret < 0) { | |
1431 | printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret); | |
1432 | return ret; | |
1433 | } | |
1434 | ret = class_interface_register(&pcmcia_bus_interface); | |
1435 | if (ret < 0) { | |
1436 | printk(KERN_WARNING | |
1437 | "pcmcia: class_interface_register error: %d\n", ret); | |
1438 | bus_unregister(&pcmcia_bus_type); | |
1439 | return ret; | |
1440 | } | |
1da177e4 | 1441 | |
1da177e4 LT |
1442 | return 0; |
1443 | } | |
9fea84f4 | 1444 | fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that |
1da177e4 LT |
1445 | * pcmcia_socket_class is already registered */ |
1446 | ||
1447 | ||
1448 | static void __exit exit_pcmcia_bus(void) | |
1449 | { | |
e7a480d2 | 1450 | class_interface_unregister(&pcmcia_bus_interface); |
1da177e4 LT |
1451 | |
1452 | bus_unregister(&pcmcia_bus_type); | |
1453 | } | |
1454 | module_exit(exit_pcmcia_bus); | |
1455 | ||
1456 | ||
1da177e4 | 1457 | MODULE_ALIAS("ds"); |