Commit | Line | Data |
---|---|---|
e7a480d2 DB |
1 | /* |
2 | * pcmcia_ioctl.c -- ioctl interface for cardmgr and cardctl | |
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 | |
13 | * (C) 2003 - 2004 Dominik Brodowski | |
14 | */ | |
15 | ||
16 | /* | |
17 | * This file will go away soon. | |
18 | */ | |
19 | ||
20 | ||
3b659fb8 | 21 | #include <linux/kernel.h> |
e7a480d2 | 22 | #include <linux/module.h> |
e7a480d2 | 23 | #include <linux/init.h> |
e7a480d2 | 24 | #include <linux/major.h> |
e7a480d2 | 25 | #include <linux/errno.h> |
e7a480d2 DB |
26 | #include <linux/ioctl.h> |
27 | #include <linux/proc_fs.h> | |
28 | #include <linux/poll.h> | |
29 | #include <linux/pci.h> | |
e6be4a8c | 30 | #include <linux/seq_file.h> |
0bec0bba | 31 | #include <linux/smp_lock.h> |
e7a480d2 | 32 | #include <linux/workqueue.h> |
e7a480d2 | 33 | |
e7a480d2 DB |
34 | #include <pcmcia/cs_types.h> |
35 | #include <pcmcia/cs.h> | |
e7a480d2 | 36 | #include <pcmcia/cistpl.h> |
4aeba013 | 37 | #include <pcmcia/cisreg.h> |
e7a480d2 DB |
38 | #include <pcmcia/ds.h> |
39 | #include <pcmcia/ss.h> | |
40 | ||
41 | #include "cs_internal.h" | |
e7a480d2 DB |
42 | |
43 | static int major_dev = -1; | |
44 | ||
45 | ||
46 | /* Device user information */ | |
47 | #define MAX_EVENTS 32 | |
48 | #define USER_MAGIC 0x7ea4 | |
49 | #define CHECK_USER(u) \ | |
50 | (((u) == NULL) || ((u)->user_magic != USER_MAGIC)) | |
51 | ||
52 | typedef struct user_info_t { | |
53 | u_int user_magic; | |
54 | int event_head, event_tail; | |
55 | event_t event[MAX_EVENTS]; | |
56 | struct user_info_t *next; | |
dc109497 | 57 | struct pcmcia_socket *socket; |
e7a480d2 DB |
58 | } user_info_t; |
59 | ||
60 | ||
855cdf13 DB |
61 | static struct pcmcia_device *get_pcmcia_device(struct pcmcia_socket *s, |
62 | unsigned int function) | |
63 | { | |
64 | struct pcmcia_device *p_dev = NULL; | |
855cdf13 | 65 | |
00ce99ff | 66 | mutex_lock(&s->ops_mutex); |
855cdf13 DB |
67 | list_for_each_entry(p_dev, &s->devices_list, socket_device_list) { |
68 | if (p_dev->func == function) { | |
00ce99ff | 69 | mutex_unlock(&s->ops_mutex); |
855cdf13 DB |
70 | return pcmcia_get_dev(p_dev); |
71 | } | |
72 | } | |
00ce99ff | 73 | mutex_unlock(&s->ops_mutex); |
855cdf13 DB |
74 | return NULL; |
75 | } | |
e7a480d2 | 76 | |
e7a480d2 DB |
77 | /* backwards-compatible accessing of driver --- by name! */ |
78 | ||
855cdf13 | 79 | static struct pcmcia_driver *get_pcmcia_driver(dev_info_t *dev_info) |
e7a480d2 DB |
80 | { |
81 | struct device_driver *drv; | |
82 | struct pcmcia_driver *p_drv; | |
83 | ||
84 | drv = driver_find((char *) dev_info, &pcmcia_bus_type); | |
85 | if (!drv) | |
86 | return NULL; | |
87 | ||
88 | p_drv = container_of(drv, struct pcmcia_driver, drv); | |
89 | ||
9fea84f4 | 90 | return p_drv; |
e7a480d2 DB |
91 | } |
92 | ||
93 | ||
94 | #ifdef CONFIG_PROC_FS | |
9fea84f4 | 95 | static struct proc_dir_entry *proc_pccard; |
e7a480d2 | 96 | |
e6be4a8c | 97 | static int proc_read_drivers_callback(struct device_driver *driver, void *_m) |
e7a480d2 | 98 | { |
e6be4a8c | 99 | struct seq_file *m = _m; |
e7a480d2 DB |
100 | struct pcmcia_driver *p_drv = container_of(driver, |
101 | struct pcmcia_driver, drv); | |
102 | ||
e6be4a8c | 103 | seq_printf(m, "%-24.24s 1 %d\n", p_drv->drv.name, |
e7a480d2 DB |
104 | #ifdef CONFIG_MODULE_UNLOAD |
105 | (p_drv->owner) ? module_refcount(p_drv->owner) : 1 | |
106 | #else | |
107 | 1 | |
108 | #endif | |
109 | ); | |
e7a480d2 DB |
110 | return 0; |
111 | } | |
112 | ||
e6be4a8c | 113 | static int pccard_drivers_proc_show(struct seq_file *m, void *v) |
e7a480d2 | 114 | { |
e6be4a8c AD |
115 | return bus_for_each_drv(&pcmcia_bus_type, NULL, |
116 | m, proc_read_drivers_callback); | |
117 | } | |
e7a480d2 | 118 | |
e6be4a8c AD |
119 | static int pccard_drivers_proc_open(struct inode *inode, struct file *file) |
120 | { | |
121 | return single_open(file, pccard_drivers_proc_show, NULL); | |
e7a480d2 | 122 | } |
e6be4a8c AD |
123 | |
124 | static const struct file_operations pccard_drivers_proc_fops = { | |
125 | .owner = THIS_MODULE, | |
126 | .open = pccard_drivers_proc_open, | |
127 | .read = seq_read, | |
128 | .llseek = seq_lseek, | |
129 | .release = single_release, | |
130 | }; | |
e7a480d2 DB |
131 | #endif |
132 | ||
c5023801 DB |
133 | |
134 | #ifdef CONFIG_PCMCIA_PROBE | |
135 | ||
136 | static int adjust_irq(struct pcmcia_socket *s, adjust_t *adj) | |
137 | { | |
138 | int irq; | |
139 | u32 mask; | |
140 | ||
141 | irq = adj->resource.irq.IRQ; | |
142 | if ((irq < 0) || (irq > 15)) | |
69ba4433 | 143 | return -EINVAL; |
c5023801 DB |
144 | |
145 | if (adj->Action != REMOVE_MANAGED_RESOURCE) | |
146 | return 0; | |
147 | ||
148 | mask = 1 << irq; | |
149 | ||
150 | if (!(s->irq_mask & mask)) | |
151 | return 0; | |
152 | ||
153 | s->irq_mask &= ~mask; | |
154 | ||
155 | return 0; | |
156 | } | |
157 | ||
158 | #else | |
159 | ||
9fea84f4 DB |
160 | static inline int adjust_irq(struct pcmcia_socket *s, adjust_t *adj) |
161 | { | |
4c89e88b | 162 | return 0; |
c5023801 DB |
163 | } |
164 | ||
165 | #endif | |
166 | ||
167 | static int pcmcia_adjust_resource_info(adjust_t *adj) | |
168 | { | |
169 | struct pcmcia_socket *s; | |
de6405e9 | 170 | int ret = -ENOSYS; |
c5023801 DB |
171 | |
172 | down_read(&pcmcia_socket_list_rwsem); | |
173 | list_for_each_entry(s, &pcmcia_socket_list, socket_list) { | |
174 | ||
175 | if (adj->Resource == RES_IRQ) | |
176 | ret = adjust_irq(s, adj); | |
177 | ||
178 | else if (s->resource_ops->add_io) { | |
179 | unsigned long begin, end; | |
180 | ||
181 | /* you can't use the old interface if the new | |
182 | * one was used before */ | |
00ce99ff | 183 | mutex_lock(&s->ops_mutex); |
c5023801 DB |
184 | if ((s->resource_setup_new) && |
185 | !(s->resource_setup_old)) { | |
00ce99ff | 186 | mutex_unlock(&s->ops_mutex); |
c5023801 DB |
187 | continue; |
188 | } else if (!(s->resource_setup_old)) | |
189 | s->resource_setup_old = 1; | |
c5023801 DB |
190 | |
191 | switch (adj->Resource) { | |
192 | case RES_MEMORY_RANGE: | |
193 | begin = adj->resource.memory.Base; | |
194 | end = adj->resource.memory.Base + adj->resource.memory.Size - 1; | |
195 | if (s->resource_ops->add_mem) | |
9fea84f4 | 196 | ret = s->resource_ops->add_mem(s, adj->Action, begin, end); |
c5023801 DB |
197 | case RES_IO_RANGE: |
198 | begin = adj->resource.io.BasePort; | |
199 | end = adj->resource.io.BasePort + adj->resource.io.NumPorts - 1; | |
200 | if (s->resource_ops->add_io) | |
201 | ret = s->resource_ops->add_io(s, adj->Action, begin, end); | |
202 | } | |
203 | if (!ret) { | |
204 | /* as there's no way we know this is the | |
205 | * last call to adjust_resource_info, we | |
206 | * always need to assume this is the latest | |
207 | * one... */ | |
c5023801 | 208 | s->resource_setup_done = 1; |
c5023801 | 209 | } |
cfe5d809 | 210 | mutex_unlock(&s->ops_mutex); |
c5023801 DB |
211 | } |
212 | } | |
213 | up_read(&pcmcia_socket_list_rwsem); | |
214 | ||
9fea84f4 | 215 | return ret; |
c5023801 DB |
216 | } |
217 | ||
d7b0364b DB |
218 | |
219 | /** pcmcia_get_window | |
220 | */ | |
221 | static int pcmcia_get_window(struct pcmcia_socket *s, window_handle_t *wh_out, | |
222 | window_handle_t wh, win_req_t *req) | |
223 | { | |
82f88e36 | 224 | pccard_mem_map *win; |
d7b0364b DB |
225 | window_handle_t w; |
226 | ||
227 | wh--; | |
228 | if (!s || !(s->state & SOCKET_PRESENT)) | |
229 | return -ENODEV; | |
230 | if (wh >= MAX_WIN) | |
231 | return -EINVAL; | |
232 | for (w = wh; w < MAX_WIN; w++) | |
233 | if (s->state & SOCKET_WIN_REQ(w)) | |
234 | break; | |
235 | if (w == MAX_WIN) | |
236 | return -EINVAL; | |
237 | win = &s->win[w]; | |
82f88e36 DB |
238 | req->Base = win->res->start; |
239 | req->Size = win->res->end - win->res->start + 1; | |
240 | req->AccessSpeed = win->speed; | |
d7b0364b | 241 | req->Attributes = 0; |
82f88e36 | 242 | if (win->flags & MAP_ATTRIB) |
d7b0364b | 243 | req->Attributes |= WIN_MEMORY_TYPE_AM; |
82f88e36 | 244 | if (win->flags & MAP_ACTIVE) |
d7b0364b | 245 | req->Attributes |= WIN_ENABLE; |
82f88e36 | 246 | if (win->flags & MAP_16BIT) |
d7b0364b | 247 | req->Attributes |= WIN_DATA_WIDTH_16; |
82f88e36 | 248 | if (win->flags & MAP_USE_WAIT) |
d7b0364b DB |
249 | req->Attributes |= WIN_USE_WAIT; |
250 | ||
251 | *wh_out = w + 1; | |
252 | return 0; | |
253 | } /* pcmcia_get_window */ | |
254 | ||
255 | ||
256 | /** pcmcia_get_mem_page | |
257 | * | |
258 | * Change the card address of an already open memory window. | |
259 | */ | |
260 | static int pcmcia_get_mem_page(struct pcmcia_socket *skt, window_handle_t wh, | |
261 | memreq_t *req) | |
262 | { | |
263 | wh--; | |
264 | if (wh >= MAX_WIN) | |
265 | return -EINVAL; | |
266 | ||
267 | req->Page = 0; | |
82f88e36 | 268 | req->CardOffset = skt->win[wh].card_start; |
d7b0364b DB |
269 | return 0; |
270 | } /* pcmcia_get_mem_page */ | |
271 | ||
272 | ||
4aeba013 DB |
273 | /** pccard_get_status |
274 | * | |
275 | * Get the current socket state bits. We don't support the latched | |
276 | * SocketState yet: I haven't seen any point for it. | |
277 | */ | |
278 | ||
279 | static int pccard_get_status(struct pcmcia_socket *s, | |
280 | struct pcmcia_device *p_dev, | |
281 | cs_status_t *status) | |
282 | { | |
283 | config_t *c; | |
284 | int val; | |
285 | ||
286 | s->ops->get_status(s, &val); | |
287 | status->CardState = status->SocketState = 0; | |
288 | status->CardState |= (val & SS_DETECT) ? CS_EVENT_CARD_DETECT : 0; | |
289 | status->CardState |= (val & SS_CARDBUS) ? CS_EVENT_CB_DETECT : 0; | |
290 | status->CardState |= (val & SS_3VCARD) ? CS_EVENT_3VCARD : 0; | |
291 | status->CardState |= (val & SS_XVCARD) ? CS_EVENT_XVCARD : 0; | |
292 | if (s->state & SOCKET_SUSPEND) | |
293 | status->CardState |= CS_EVENT_PM_SUSPEND; | |
294 | if (!(s->state & SOCKET_PRESENT)) | |
3939c1ef | 295 | return -ENODEV; |
4aeba013 DB |
296 | |
297 | c = (p_dev) ? p_dev->function_config : NULL; | |
298 | ||
299 | if ((c != NULL) && (c->state & CONFIG_LOCKED) && | |
300 | (c->IntType & (INT_MEMORY_AND_IO | INT_ZOOMED_VIDEO))) { | |
301 | u_char reg; | |
302 | if (c->CardValues & PRESENT_PIN_REPLACE) { | |
303 | pcmcia_read_cis_mem(s, 1, (c->ConfigBase+CISREG_PRR)>>1, 1, ®); | |
304 | status->CardState |= | |
305 | (reg & PRR_WP_STATUS) ? CS_EVENT_WRITE_PROTECT : 0; | |
306 | status->CardState |= | |
307 | (reg & PRR_READY_STATUS) ? CS_EVENT_READY_CHANGE : 0; | |
308 | status->CardState |= | |
309 | (reg & PRR_BVD2_STATUS) ? CS_EVENT_BATTERY_LOW : 0; | |
310 | status->CardState |= | |
311 | (reg & PRR_BVD1_STATUS) ? CS_EVENT_BATTERY_DEAD : 0; | |
312 | } else { | |
313 | /* No PRR? Then assume we're always ready */ | |
314 | status->CardState |= CS_EVENT_READY_CHANGE; | |
315 | } | |
316 | if (c->CardValues & PRESENT_EXT_STATUS) { | |
317 | pcmcia_read_cis_mem(s, 1, (c->ConfigBase+CISREG_ESR)>>1, 1, ®); | |
318 | status->CardState |= | |
319 | (reg & ESR_REQ_ATTN) ? CS_EVENT_REQUEST_ATTENTION : 0; | |
320 | } | |
4c89e88b | 321 | return 0; |
4aeba013 DB |
322 | } |
323 | status->CardState |= | |
324 | (val & SS_WRPROT) ? CS_EVENT_WRITE_PROTECT : 0; | |
325 | status->CardState |= | |
326 | (val & SS_BATDEAD) ? CS_EVENT_BATTERY_DEAD : 0; | |
327 | status->CardState |= | |
328 | (val & SS_BATWARN) ? CS_EVENT_BATTERY_LOW : 0; | |
329 | status->CardState |= | |
330 | (val & SS_READY) ? CS_EVENT_READY_CHANGE : 0; | |
4c89e88b | 331 | return 0; |
4aeba013 | 332 | } /* pccard_get_status */ |
c5023801 | 333 | |
a0779327 | 334 | static int pccard_get_configuration_info(struct pcmcia_socket *s, |
64f34642 DB |
335 | struct pcmcia_device *p_dev, |
336 | config_info_t *config) | |
337 | { | |
338 | config_t *c; | |
339 | ||
340 | if (!(s->state & SOCKET_PRESENT)) | |
3939c1ef | 341 | return -ENODEV; |
64f34642 DB |
342 | |
343 | ||
344 | #ifdef CONFIG_CARDBUS | |
345 | if (s->state & SOCKET_CARDBUS) { | |
346 | memset(config, 0, sizeof(config_info_t)); | |
347 | config->Vcc = s->socket.Vcc; | |
348 | config->Vpp1 = config->Vpp2 = s->socket.Vpp; | |
349 | config->Option = s->cb_dev->subordinate->number; | |
350 | if (s->state & SOCKET_CARDBUS_CONFIG) { | |
351 | config->Attributes = CONF_VALID_CLIENT; | |
352 | config->IntType = INT_CARDBUS; | |
353 | config->AssignedIRQ = s->irq.AssignedIRQ; | |
354 | if (config->AssignedIRQ) | |
355 | config->Attributes |= CONF_ENABLE_IRQ; | |
356 | if (s->io[0].res) { | |
357 | config->BasePort1 = s->io[0].res->start; | |
358 | config->NumPorts1 = s->io[0].res->end - | |
359 | config->BasePort1 + 1; | |
360 | } | |
361 | } | |
4c89e88b | 362 | return 0; |
64f34642 DB |
363 | } |
364 | #endif | |
365 | ||
366 | if (p_dev) { | |
367 | c = p_dev->function_config; | |
368 | config->Function = p_dev->func; | |
369 | } else { | |
370 | c = NULL; | |
371 | config->Function = 0; | |
372 | } | |
373 | ||
374 | if ((c == NULL) || !(c->state & CONFIG_LOCKED)) { | |
375 | config->Attributes = 0; | |
376 | config->Vcc = s->socket.Vcc; | |
377 | config->Vpp1 = config->Vpp2 = s->socket.Vpp; | |
4c89e88b | 378 | return 0; |
64f34642 DB |
379 | } |
380 | ||
381 | config->Attributes = c->Attributes | CONF_VALID_CLIENT; | |
382 | config->Vcc = s->socket.Vcc; | |
383 | config->Vpp1 = config->Vpp2 = s->socket.Vpp; | |
384 | config->IntType = c->IntType; | |
385 | config->ConfigBase = c->ConfigBase; | |
386 | config->Status = c->Status; | |
387 | config->Pin = c->Pin; | |
388 | config->Copy = c->Copy; | |
389 | config->Option = c->Option; | |
390 | config->ExtStatus = c->ExtStatus; | |
391 | config->Present = config->CardValues = c->CardValues; | |
392 | config->IRQAttributes = c->irq.Attributes; | |
393 | config->AssignedIRQ = s->irq.AssignedIRQ; | |
394 | config->BasePort1 = c->io.BasePort1; | |
395 | config->NumPorts1 = c->io.NumPorts1; | |
396 | config->Attributes1 = c->io.Attributes1; | |
397 | config->BasePort2 = c->io.BasePort2; | |
398 | config->NumPorts2 = c->io.NumPorts2; | |
399 | config->Attributes2 = c->io.Attributes2; | |
400 | config->IOAddrLines = c->io.IOAddrLines; | |
401 | ||
4c89e88b | 402 | return 0; |
64f34642 DB |
403 | } /* pccard_get_configuration_info */ |
404 | ||
405 | ||
e7a480d2 DB |
406 | /*====================================================================== |
407 | ||
408 | These manage a ring buffer of events pending for one user process | |
409 | ||
410 | ======================================================================*/ | |
411 | ||
412 | ||
413 | static int queue_empty(user_info_t *user) | |
414 | { | |
415 | return (user->event_head == user->event_tail); | |
416 | } | |
417 | ||
418 | static event_t get_queued_event(user_info_t *user) | |
419 | { | |
420 | user->event_tail = (user->event_tail+1) % MAX_EVENTS; | |
421 | return user->event[user->event_tail]; | |
422 | } | |
423 | ||
424 | static void queue_event(user_info_t *user, event_t event) | |
425 | { | |
426 | user->event_head = (user->event_head+1) % MAX_EVENTS; | |
427 | if (user->event_head == user->event_tail) | |
428 | user->event_tail = (user->event_tail+1) % MAX_EVENTS; | |
429 | user->event[user->event_head] = event; | |
430 | } | |
431 | ||
dc109497 | 432 | void handle_event(struct pcmcia_socket *s, event_t event) |
e7a480d2 DB |
433 | { |
434 | user_info_t *user; | |
435 | for (user = s->user; user; user = user->next) | |
436 | queue_event(user, event); | |
437 | wake_up_interruptible(&s->queue); | |
438 | } | |
439 | ||
440 | ||
441 | /*====================================================================== | |
442 | ||
443 | bind_request() and bind_device() are merged by now. Register_client() | |
444 | is called right at the end of bind_request(), during the driver's | |
445 | ->attach() call. Individual descriptions: | |
446 | ||
447 | bind_request() connects a socket to a particular client driver. | |
448 | It looks up the specified device ID in the list of registered | |
449 | drivers, binds it to the socket, and tries to create an instance | |
450 | of the device. unbind_request() deletes a driver instance. | |
451 | ||
452 | Bind_device() associates a device driver with a particular socket. | |
453 | It is normally called by Driver Services after it has identified | |
454 | a newly inserted card. An instance of that driver will then be | |
455 | eligible to register as a client of this socket. | |
456 | ||
457 | Register_client() uses the dev_info_t handle to match the | |
458 | caller with a socket. The driver must have already been bound | |
459 | to a socket with bind_device() -- in fact, bind_device() | |
460 | allocates the client structure that will be used. | |
461 | ||
462 | ======================================================================*/ | |
463 | ||
dc109497 | 464 | static int bind_request(struct pcmcia_socket *s, bind_info_t *bind_info) |
e7a480d2 DB |
465 | { |
466 | struct pcmcia_driver *p_drv; | |
467 | struct pcmcia_device *p_dev; | |
468 | int ret = 0; | |
e7a480d2 | 469 | |
dc109497 | 470 | s = pcmcia_get_socket(s); |
e7a480d2 DB |
471 | if (!s) |
472 | return -EINVAL; | |
473 | ||
d50dbec3 | 474 | pr_debug("bind_request(%d, '%s')\n", s->sock, |
e7a480d2 DB |
475 | (char *)bind_info->dev_info); |
476 | ||
477 | p_drv = get_pcmcia_driver(&bind_info->dev_info); | |
478 | if (!p_drv) { | |
479 | ret = -EINVAL; | |
480 | goto err_put; | |
481 | } | |
482 | ||
483 | if (!try_module_get(p_drv->owner)) { | |
484 | ret = -EINVAL; | |
485 | goto err_put_driver; | |
486 | } | |
487 | ||
00ce99ff | 488 | mutex_lock(&s->ops_mutex); |
9fea84f4 | 489 | list_for_each_entry(p_dev, &s->devices_list, socket_device_list) { |
e7a480d2 DB |
490 | if (p_dev->func == bind_info->function) { |
491 | if ((p_dev->dev.driver == &p_drv->drv)) { | |
492 | if (p_dev->cardmgr) { | |
493 | /* if there's already a device | |
494 | * registered, and it was registered | |
495 | * by userspace before, we need to | |
496 | * return the "instance". */ | |
00ce99ff | 497 | mutex_unlock(&s->ops_mutex); |
fd238232 | 498 | bind_info->instance = p_dev; |
e7a480d2 DB |
499 | ret = -EBUSY; |
500 | goto err_put_module; | |
501 | } else { | |
502 | /* the correct driver managed to bind | |
503 | * itself magically to the correct | |
504 | * device. */ | |
00ce99ff | 505 | mutex_unlock(&s->ops_mutex); |
e7a480d2 DB |
506 | p_dev->cardmgr = p_drv; |
507 | ret = 0; | |
508 | goto err_put_module; | |
509 | } | |
510 | } else if (!p_dev->dev.driver) { | |
511 | /* there's already a device available where | |
512 | * no device has been bound to yet. So we don't | |
513 | * need to register a device! */ | |
00ce99ff | 514 | mutex_unlock(&s->ops_mutex); |
e7a480d2 DB |
515 | goto rescan; |
516 | } | |
517 | } | |
518 | } | |
00ce99ff | 519 | mutex_unlock(&s->ops_mutex); |
e7a480d2 DB |
520 | |
521 | p_dev = pcmcia_device_add(s, bind_info->function); | |
522 | if (!p_dev) { | |
523 | ret = -EIO; | |
524 | goto err_put_module; | |
525 | } | |
526 | ||
527 | rescan: | |
528 | p_dev->cardmgr = p_drv; | |
529 | ||
530 | /* if a driver is already running, we can abort */ | |
531 | if (p_dev->dev.driver) | |
532 | goto err_put_module; | |
533 | ||
534 | /* | |
535 | * Prevent this racing with a card insertion. | |
536 | */ | |
7fe908dd | 537 | mutex_lock(&s->skt_mutex); |
4deb7c1e | 538 | ret = bus_rescan_devices(&pcmcia_bus_type); |
7fe908dd | 539 | mutex_unlock(&s->skt_mutex); |
4deb7c1e JG |
540 | if (ret) |
541 | goto err_put_module; | |
e7a480d2 DB |
542 | |
543 | /* check whether the driver indeed matched. I don't care if this | |
544 | * is racy or not, because it can only happen on cardmgr access | |
545 | * paths... | |
546 | */ | |
547 | if (!(p_dev->dev.driver == &p_drv->drv)) | |
548 | p_dev->cardmgr = NULL; | |
549 | ||
550 | err_put_module: | |
551 | module_put(p_drv->owner); | |
552 | err_put_driver: | |
553 | put_driver(&p_drv->drv); | |
554 | err_put: | |
dc109497 | 555 | pcmcia_put_socket(s); |
e7a480d2 | 556 | |
9fea84f4 | 557 | return ret; |
e7a480d2 DB |
558 | } /* bind_request */ |
559 | ||
33519ddd DB |
560 | #ifdef CONFIG_CARDBUS |
561 | ||
562 | static struct pci_bus *pcmcia_lookup_bus(struct pcmcia_socket *s) | |
563 | { | |
564 | if (!s || !(s->state & SOCKET_CARDBUS)) | |
565 | return NULL; | |
e7a480d2 | 566 | |
33519ddd DB |
567 | return s->cb_dev->subordinate; |
568 | } | |
569 | #endif | |
e7a480d2 | 570 | |
dc109497 | 571 | static int get_device_info(struct pcmcia_socket *s, bind_info_t *bind_info, int first) |
e7a480d2 DB |
572 | { |
573 | dev_node_t *node; | |
574 | struct pcmcia_device *p_dev; | |
e2d40963 | 575 | struct pcmcia_driver *p_drv; |
e7a480d2 DB |
576 | int ret = 0; |
577 | ||
578 | #ifdef CONFIG_CARDBUS | |
579 | /* | |
580 | * Some unbelievably ugly code to associate the PCI cardbus | |
581 | * device and its driver with the PCMCIA "bind" information. | |
582 | */ | |
583 | { | |
584 | struct pci_bus *bus; | |
585 | ||
dc109497 | 586 | bus = pcmcia_lookup_bus(s); |
e7a480d2 DB |
587 | if (bus) { |
588 | struct list_head *list; | |
589 | struct pci_dev *dev = NULL; | |
590 | ||
591 | list = bus->devices.next; | |
592 | while (list != &bus->devices) { | |
593 | struct pci_dev *pdev = pci_dev_b(list); | |
594 | list = list->next; | |
595 | ||
596 | if (first) { | |
597 | dev = pdev; | |
598 | break; | |
599 | } | |
600 | ||
601 | /* Try to handle "next" here some way? */ | |
602 | } | |
603 | if (dev && dev->driver) { | |
604 | strlcpy(bind_info->name, dev->driver->name, DEV_NAME_LEN); | |
605 | bind_info->major = 0; | |
606 | bind_info->minor = 0; | |
607 | bind_info->next = NULL; | |
608 | return 0; | |
609 | } | |
610 | } | |
611 | } | |
612 | #endif | |
613 | ||
00ce99ff | 614 | mutex_lock(&s->ops_mutex); |
e7a480d2 DB |
615 | list_for_each_entry(p_dev, &s->devices_list, socket_device_list) { |
616 | if (p_dev->func == bind_info->function) { | |
617 | p_dev = pcmcia_get_dev(p_dev); | |
618 | if (!p_dev) | |
619 | continue; | |
620 | goto found; | |
621 | } | |
622 | } | |
00ce99ff | 623 | mutex_unlock(&s->ops_mutex); |
e7a480d2 DB |
624 | return -ENODEV; |
625 | ||
626 | found: | |
00ce99ff | 627 | mutex_unlock(&s->ops_mutex); |
e7a480d2 | 628 | |
e2d40963 DB |
629 | p_drv = to_pcmcia_drv(p_dev->dev.driver); |
630 | if (p_drv && !p_dev->_locked) { | |
e7a480d2 DB |
631 | ret = -EAGAIN; |
632 | goto err_put; | |
633 | } | |
634 | ||
635 | if (first) | |
fd238232 | 636 | node = p_dev->dev_node; |
e7a480d2 | 637 | else |
fd238232 | 638 | for (node = p_dev->dev_node; node; node = node->next) |
e7a480d2 DB |
639 | if (node == bind_info->next) |
640 | break; | |
641 | if (!node) { | |
642 | ret = -ENODEV; | |
643 | goto err_put; | |
644 | } | |
645 | ||
646 | strlcpy(bind_info->name, node->dev_name, DEV_NAME_LEN); | |
647 | bind_info->major = node->major; | |
648 | bind_info->minor = node->minor; | |
649 | bind_info->next = node->next; | |
650 | ||
651 | err_put: | |
652 | pcmcia_put_dev(p_dev); | |
9fea84f4 | 653 | return ret; |
e7a480d2 DB |
654 | } /* get_device_info */ |
655 | ||
656 | ||
657 | static int ds_open(struct inode *inode, struct file *file) | |
658 | { | |
659 | socket_t i = iminor(inode); | |
dc109497 | 660 | struct pcmcia_socket *s; |
e7a480d2 | 661 | user_info_t *user; |
9fea84f4 | 662 | static int warning_printed; |
0bec0bba | 663 | int ret = 0; |
e7a480d2 | 664 | |
d50dbec3 | 665 | pr_debug("ds_open(socket %d)\n", i); |
e7a480d2 | 666 | |
0bec0bba | 667 | lock_kernel(); |
dc109497 | 668 | s = pcmcia_get_socket_by_nr(i); |
0bec0bba JC |
669 | if (!s) { |
670 | ret = -ENODEV; | |
671 | goto out; | |
672 | } | |
dc109497 | 673 | s = pcmcia_get_socket(s); |
0bec0bba JC |
674 | if (!s) { |
675 | ret = -ENODEV; | |
676 | goto out; | |
677 | } | |
e7a480d2 DB |
678 | |
679 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { | |
b5e43913 | 680 | if (s->pcmcia_state.busy) { |
dc109497 | 681 | pcmcia_put_socket(s); |
0bec0bba JC |
682 | ret = -EBUSY; |
683 | goto out; | |
e7a480d2 DB |
684 | } |
685 | else | |
b5e43913 | 686 | s->pcmcia_state.busy = 1; |
e7a480d2 DB |
687 | } |
688 | ||
689 | user = kmalloc(sizeof(user_info_t), GFP_KERNEL); | |
690 | if (!user) { | |
dc109497 | 691 | pcmcia_put_socket(s); |
0bec0bba JC |
692 | ret = -ENOMEM; |
693 | goto out; | |
e7a480d2 DB |
694 | } |
695 | user->event_tail = user->event_head = 0; | |
696 | user->next = s->user; | |
697 | user->user_magic = USER_MAGIC; | |
698 | user->socket = s; | |
699 | s->user = user; | |
700 | file->private_data = user; | |
701 | ||
c352ec8a DB |
702 | if (!warning_printed) { |
703 | printk(KERN_INFO "pcmcia: Detected deprecated PCMCIA ioctl " | |
73d58588 | 704 | "usage from process: %s.\n", current->comm); |
c352ec8a DB |
705 | printk(KERN_INFO "pcmcia: This interface will soon be removed from " |
706 | "the kernel; please expect breakage unless you upgrade " | |
707 | "to new tools.\n"); | |
708 | printk(KERN_INFO "pcmcia: see http://www.kernel.org/pub/linux/" | |
709 | "utils/kernel/pcmcia/pcmcia.html for details.\n"); | |
710 | warning_printed = 1; | |
711 | } | |
712 | ||
b5e43913 | 713 | if (s->pcmcia_state.present) |
e7a480d2 | 714 | queue_event(user, CS_EVENT_CARD_INSERTION); |
0bec0bba JC |
715 | out: |
716 | unlock_kernel(); | |
717 | return ret; | |
e7a480d2 DB |
718 | } /* ds_open */ |
719 | ||
720 | /*====================================================================*/ | |
721 | ||
722 | static int ds_release(struct inode *inode, struct file *file) | |
723 | { | |
dc109497 | 724 | struct pcmcia_socket *s; |
e7a480d2 DB |
725 | user_info_t *user, **link; |
726 | ||
d50dbec3 | 727 | pr_debug("ds_release(socket %d)\n", iminor(inode)); |
e7a480d2 DB |
728 | |
729 | user = file->private_data; | |
730 | if (CHECK_USER(user)) | |
731 | goto out; | |
732 | ||
733 | s = user->socket; | |
734 | ||
735 | /* Unlink user data structure */ | |
9fea84f4 | 736 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) |
b5e43913 | 737 | s->pcmcia_state.busy = 0; |
9fea84f4 | 738 | |
e7a480d2 DB |
739 | file->private_data = NULL; |
740 | for (link = &s->user; *link; link = &(*link)->next) | |
9fea84f4 DB |
741 | if (*link == user) |
742 | break; | |
e7a480d2 DB |
743 | if (link == NULL) |
744 | goto out; | |
745 | *link = user->next; | |
746 | user->user_magic = 0; | |
747 | kfree(user); | |
dc109497 | 748 | pcmcia_put_socket(s); |
e7a480d2 DB |
749 | out: |
750 | return 0; | |
751 | } /* ds_release */ | |
752 | ||
753 | /*====================================================================*/ | |
754 | ||
755 | static ssize_t ds_read(struct file *file, char __user *buf, | |
756 | size_t count, loff_t *ppos) | |
757 | { | |
dc109497 | 758 | struct pcmcia_socket *s; |
e7a480d2 DB |
759 | user_info_t *user; |
760 | int ret; | |
761 | ||
d50dbec3 | 762 | pr_debug("ds_read(socket %d)\n", iminor(file->f_path.dentry->d_inode)); |
e7a480d2 DB |
763 | |
764 | if (count < 4) | |
765 | return -EINVAL; | |
766 | ||
767 | user = file->private_data; | |
768 | if (CHECK_USER(user)) | |
769 | return -EIO; | |
770 | ||
771 | s = user->socket; | |
b5e43913 | 772 | if (s->pcmcia_state.dead) |
9fea84f4 | 773 | return -EIO; |
e7a480d2 DB |
774 | |
775 | ret = wait_event_interruptible(s->queue, !queue_empty(user)); | |
776 | if (ret == 0) | |
777 | ret = put_user(get_queued_event(user), (int __user *)buf) ? -EFAULT : 4; | |
778 | ||
779 | return ret; | |
780 | } /* ds_read */ | |
781 | ||
782 | /*====================================================================*/ | |
783 | ||
784 | static ssize_t ds_write(struct file *file, const char __user *buf, | |
785 | size_t count, loff_t *ppos) | |
786 | { | |
d50dbec3 | 787 | pr_debug("ds_write(socket %d)\n", iminor(file->f_path.dentry->d_inode)); |
e7a480d2 DB |
788 | |
789 | if (count != 4) | |
790 | return -EINVAL; | |
791 | if ((file->f_flags & O_ACCMODE) == O_RDONLY) | |
792 | return -EBADF; | |
793 | ||
794 | return -EIO; | |
795 | } /* ds_write */ | |
796 | ||
797 | /*====================================================================*/ | |
798 | ||
799 | /* No kernel lock - fine */ | |
800 | static u_int ds_poll(struct file *file, poll_table *wait) | |
801 | { | |
dc109497 | 802 | struct pcmcia_socket *s; |
e7a480d2 DB |
803 | user_info_t *user; |
804 | ||
d50dbec3 | 805 | pr_debug("ds_poll(socket %d)\n", iminor(file->f_path.dentry->d_inode)); |
e7a480d2 DB |
806 | |
807 | user = file->private_data; | |
808 | if (CHECK_USER(user)) | |
809 | return POLLERR; | |
810 | s = user->socket; | |
811 | /* | |
812 | * We don't check for a dead socket here since that | |
813 | * will send cardmgr into an endless spin. | |
814 | */ | |
815 | poll_wait(file, &s->queue, wait); | |
816 | if (!queue_empty(user)) | |
817 | return POLLIN | POLLRDNORM; | |
818 | return 0; | |
819 | } /* ds_poll */ | |
820 | ||
821 | /*====================================================================*/ | |
822 | ||
9fea84f4 | 823 | static int ds_ioctl(struct inode *inode, struct file *file, |
e7a480d2 DB |
824 | u_int cmd, u_long arg) |
825 | { | |
dc109497 | 826 | struct pcmcia_socket *s; |
e7a480d2 DB |
827 | void __user *uarg = (char __user *)arg; |
828 | u_int size; | |
829 | int ret, err; | |
830 | ds_ioctl_arg_t *buf; | |
831 | user_info_t *user; | |
832 | ||
d50dbec3 | 833 | pr_debug("ds_ioctl(socket %d, %#x, %#lx)\n", iminor(inode), cmd, arg); |
e7a480d2 DB |
834 | |
835 | user = file->private_data; | |
836 | if (CHECK_USER(user)) | |
837 | return -EIO; | |
838 | ||
839 | s = user->socket; | |
b5e43913 | 840 | if (s->pcmcia_state.dead) |
9fea84f4 | 841 | return -EIO; |
e7a480d2 DB |
842 | |
843 | size = (cmd & IOCSIZE_MASK) >> IOCSIZE_SHIFT; | |
9fea84f4 DB |
844 | if (size > sizeof(ds_ioctl_arg_t)) |
845 | return -EINVAL; | |
e7a480d2 DB |
846 | |
847 | /* Permission check */ | |
848 | if (!(cmd & IOC_OUT) && !capable(CAP_SYS_ADMIN)) | |
849 | return -EPERM; | |
850 | ||
851 | if (cmd & IOC_IN) { | |
852 | if (!access_ok(VERIFY_READ, uarg, size)) { | |
d50dbec3 | 853 | pr_debug("ds_ioctl(): verify_read = %d\n", -EFAULT); |
e7a480d2 DB |
854 | return -EFAULT; |
855 | } | |
856 | } | |
857 | if (cmd & IOC_OUT) { | |
858 | if (!access_ok(VERIFY_WRITE, uarg, size)) { | |
d50dbec3 | 859 | pr_debug("ds_ioctl(): verify_write = %d\n", -EFAULT); |
e7a480d2 DB |
860 | return -EFAULT; |
861 | } | |
862 | } | |
863 | buf = kmalloc(sizeof(ds_ioctl_arg_t), GFP_KERNEL); | |
864 | if (!buf) | |
865 | return -ENOMEM; | |
866 | ||
867 | err = ret = 0; | |
868 | ||
9374074f DB |
869 | if (cmd & IOC_IN) { |
870 | if (__copy_from_user((char *)buf, uarg, size)) { | |
871 | err = -EFAULT; | |
872 | goto free_out; | |
873 | } | |
874 | } | |
e7a480d2 DB |
875 | |
876 | switch (cmd) { | |
877 | case DS_ADJUST_RESOURCE_INFO: | |
878 | ret = pcmcia_adjust_resource_info(&buf->adjust); | |
879 | break; | |
e7a480d2 DB |
880 | case DS_GET_CONFIGURATION_INFO: |
881 | if (buf->config.Function && | |
dc109497 | 882 | (buf->config.Function >= s->functions)) |
926c5402 | 883 | ret = -EINVAL; |
855cdf13 DB |
884 | else { |
885 | struct pcmcia_device *p_dev = get_pcmcia_device(s, buf->config.Function); | |
f47ad214 DR |
886 | ret = pccard_get_configuration_info(s, p_dev, &buf->config); |
887 | pcmcia_put_dev(p_dev); | |
855cdf13 | 888 | } |
e7a480d2 DB |
889 | break; |
890 | case DS_GET_FIRST_TUPLE: | |
7fe908dd | 891 | mutex_lock(&s->skt_mutex); |
dc109497 | 892 | pcmcia_validate_mem(s); |
7fe908dd | 893 | mutex_unlock(&s->skt_mutex); |
dc109497 | 894 | ret = pccard_get_first_tuple(s, BIND_FN_ALL, &buf->tuple); |
e7a480d2 DB |
895 | break; |
896 | case DS_GET_NEXT_TUPLE: | |
dc109497 | 897 | ret = pccard_get_next_tuple(s, BIND_FN_ALL, &buf->tuple); |
e7a480d2 DB |
898 | break; |
899 | case DS_GET_TUPLE_DATA: | |
900 | buf->tuple.TupleData = buf->tuple_parse.data; | |
901 | buf->tuple.TupleDataMax = sizeof(buf->tuple_parse.data); | |
dc109497 | 902 | ret = pccard_get_tuple_data(s, &buf->tuple); |
e7a480d2 DB |
903 | break; |
904 | case DS_PARSE_TUPLE: | |
905 | buf->tuple.TupleData = buf->tuple_parse.data; | |
2f3061eb | 906 | ret = pcmcia_parse_tuple(&buf->tuple, &buf->tuple_parse.parse); |
e7a480d2 DB |
907 | break; |
908 | case DS_RESET_CARD: | |
994917f8 | 909 | ret = pcmcia_reset_card(s); |
e7a480d2 DB |
910 | break; |
911 | case DS_GET_STATUS: | |
855cdf13 DB |
912 | if (buf->status.Function && |
913 | (buf->status.Function >= s->functions)) | |
926c5402 | 914 | ret = -EINVAL; |
855cdf13 DB |
915 | else { |
916 | struct pcmcia_device *p_dev = get_pcmcia_device(s, buf->status.Function); | |
f47ad214 DR |
917 | ret = pccard_get_status(s, p_dev, &buf->status); |
918 | pcmcia_put_dev(p_dev); | |
855cdf13 DB |
919 | } |
920 | break; | |
e7a480d2 | 921 | case DS_VALIDATE_CIS: |
7fe908dd | 922 | mutex_lock(&s->skt_mutex); |
dc109497 | 923 | pcmcia_validate_mem(s); |
7fe908dd | 924 | mutex_unlock(&s->skt_mutex); |
84897fc0 | 925 | ret = pccard_validate_cis(s, &buf->cisinfo.Chains); |
e7a480d2 DB |
926 | break; |
927 | case DS_SUSPEND_CARD: | |
f971dbd5 | 928 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_SUSPEND); |
e7a480d2 DB |
929 | break; |
930 | case DS_RESUME_CARD: | |
f971dbd5 | 931 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_RESUME); |
e7a480d2 DB |
932 | break; |
933 | case DS_EJECT_CARD: | |
f971dbd5 | 934 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_EJECT); |
e7a480d2 DB |
935 | break; |
936 | case DS_INSERT_CARD: | |
f971dbd5 | 937 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_INSERT); |
e7a480d2 DB |
938 | break; |
939 | case DS_ACCESS_CONFIGURATION_REGISTER: | |
940 | if ((buf->conf_reg.Action == CS_WRITE) && !capable(CAP_SYS_ADMIN)) { | |
941 | err = -EPERM; | |
942 | goto free_out; | |
943 | } | |
855cdf13 | 944 | |
926c5402 | 945 | ret = -EINVAL; |
855cdf13 DB |
946 | |
947 | if (!(buf->conf_reg.Function && | |
948 | (buf->conf_reg.Function >= s->functions))) { | |
949 | struct pcmcia_device *p_dev = get_pcmcia_device(s, buf->conf_reg.Function); | |
73d58588 | 950 | if (p_dev) { |
855cdf13 | 951 | ret = pcmcia_access_configuration_register(p_dev, &buf->conf_reg); |
73d58588 BH |
952 | pcmcia_put_dev(p_dev); |
953 | } | |
855cdf13 | 954 | } |
e7a480d2 DB |
955 | break; |
956 | case DS_GET_FIRST_REGION: | |
957 | case DS_GET_NEXT_REGION: | |
958 | case DS_BIND_MTD: | |
959 | if (!capable(CAP_SYS_ADMIN)) { | |
960 | err = -EPERM; | |
961 | goto free_out; | |
962 | } else { | |
a9c56953 MK |
963 | printk_once(KERN_WARNING |
964 | "2.6. kernels use pcmciamtd instead of memory_cs.c and do not require special\n"); | |
965 | printk_once(KERN_WARNING "MTD handling any more.\n"); | |
e7a480d2 DB |
966 | } |
967 | err = -EINVAL; | |
968 | goto free_out; | |
969 | break; | |
970 | case DS_GET_FIRST_WINDOW: | |
0bdf9b3d | 971 | ret = pcmcia_get_window(s, &buf->win_info.handle, 1, |
e7a480d2 DB |
972 | &buf->win_info.window); |
973 | break; | |
974 | case DS_GET_NEXT_WINDOW: | |
dc109497 | 975 | ret = pcmcia_get_window(s, &buf->win_info.handle, |
0bdf9b3d | 976 | buf->win_info.handle + 1, &buf->win_info.window); |
e7a480d2 DB |
977 | break; |
978 | case DS_GET_MEM_PAGE: | |
16456eba | 979 | ret = pcmcia_get_mem_page(s, buf->win_info.handle, |
e7a480d2 DB |
980 | &buf->win_info.map); |
981 | break; | |
982 | case DS_REPLACE_CIS: | |
53efec95 | 983 | ret = pcmcia_replace_cis(s, buf->cisdump.Data, buf->cisdump.Length); |
e7a480d2 DB |
984 | break; |
985 | case DS_BIND_REQUEST: | |
986 | if (!capable(CAP_SYS_ADMIN)) { | |
987 | err = -EPERM; | |
988 | goto free_out; | |
989 | } | |
990 | err = bind_request(s, &buf->bind_info); | |
991 | break; | |
992 | case DS_GET_DEVICE_INFO: | |
993 | err = get_device_info(s, &buf->bind_info, 1); | |
994 | break; | |
995 | case DS_GET_NEXT_DEVICE: | |
996 | err = get_device_info(s, &buf->bind_info, 0); | |
997 | break; | |
998 | case DS_UNBIND_REQUEST: | |
999 | err = 0; | |
1000 | break; | |
1001 | default: | |
1002 | err = -EINVAL; | |
1003 | } | |
1004 | ||
4c89e88b | 1005 | if ((err == 0) && (ret != 0)) { |
d50dbec3 | 1006 | pr_debug("ds_ioctl: ret = %d\n", ret); |
e7a480d2 | 1007 | switch (ret) { |
610e2374 DB |
1008 | case -ENODEV: |
1009 | case -EINVAL: | |
1010 | case -EBUSY: | |
1011 | case -ENOSYS: | |
1012 | err = ret; | |
1013 | break; | |
610e2374 | 1014 | case -ENOMEM: |
e7a480d2 | 1015 | err = -ENOSPC; break; |
635d19be | 1016 | case -ENOSPC: |
e7a480d2 | 1017 | err = -ENODATA; break; |
e7a480d2 DB |
1018 | default: |
1019 | err = -EIO; break; | |
1020 | } | |
1021 | } | |
1022 | ||
1023 | if (cmd & IOC_OUT) { | |
9fea84f4 DB |
1024 | if (__copy_to_user(uarg, (char *)buf, size)) |
1025 | err = -EFAULT; | |
e7a480d2 DB |
1026 | } |
1027 | ||
1028 | free_out: | |
1029 | kfree(buf); | |
1030 | return err; | |
1031 | } /* ds_ioctl */ | |
1032 | ||
1033 | /*====================================================================*/ | |
1034 | ||
d54b1fdb | 1035 | static const struct file_operations ds_fops = { |
e7a480d2 DB |
1036 | .owner = THIS_MODULE, |
1037 | .open = ds_open, | |
1038 | .release = ds_release, | |
1039 | .ioctl = ds_ioctl, | |
1040 | .read = ds_read, | |
1041 | .write = ds_write, | |
1042 | .poll = ds_poll, | |
1043 | }; | |
1044 | ||
9fea84f4 DB |
1045 | void __init pcmcia_setup_ioctl(void) |
1046 | { | |
e7a480d2 DB |
1047 | int i; |
1048 | ||
1049 | /* Set up character device for user mode clients */ | |
1050 | i = register_chrdev(0, "pcmcia", &ds_fops); | |
1a8ceafc | 1051 | if (i < 0) |
e7a480d2 | 1052 | printk(KERN_NOTICE "unable to find a free device # for " |
1a8ceafc | 1053 | "Driver Services (error=%d)\n", i); |
e7a480d2 DB |
1054 | else |
1055 | major_dev = i; | |
1056 | ||
1057 | #ifdef CONFIG_PROC_FS | |
97094dcf | 1058 | proc_pccard = proc_mkdir("bus/pccard", NULL); |
e7a480d2 | 1059 | if (proc_pccard) |
e6be4a8c | 1060 | proc_create("drivers", 0, proc_pccard, &pccard_drivers_proc_fops); |
e7a480d2 DB |
1061 | #endif |
1062 | } | |
1063 | ||
1064 | ||
9fea84f4 DB |
1065 | void __exit pcmcia_cleanup_ioctl(void) |
1066 | { | |
e7a480d2 DB |
1067 | #ifdef CONFIG_PROC_FS |
1068 | if (proc_pccard) { | |
1069 | remove_proc_entry("drivers", proc_pccard); | |
97094dcf | 1070 | remove_proc_entry("bus/pccard", NULL); |
e7a480d2 DB |
1071 | } |
1072 | #endif | |
1073 | if (major_dev != -1) | |
1074 | unregister_chrdev(major_dev, "pcmcia"); | |
1075 | } |