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Commit | Line | Data |
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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 | ||
21 | #include <linux/config.h> | |
3b659fb8 | 22 | #include <linux/kernel.h> |
e7a480d2 | 23 | #include <linux/module.h> |
e7a480d2 | 24 | #include <linux/init.h> |
e7a480d2 | 25 | #include <linux/major.h> |
e7a480d2 | 26 | #include <linux/errno.h> |
e7a480d2 DB |
27 | #include <linux/ioctl.h> |
28 | #include <linux/proc_fs.h> | |
29 | #include <linux/poll.h> | |
30 | #include <linux/pci.h> | |
e7a480d2 | 31 | #include <linux/workqueue.h> |
e7a480d2 DB |
32 | |
33 | #define IN_CARD_SERVICES | |
34 | #include <pcmcia/version.h> | |
35 | #include <pcmcia/cs_types.h> | |
36 | #include <pcmcia/cs.h> | |
e7a480d2 DB |
37 | #include <pcmcia/cistpl.h> |
38 | #include <pcmcia/ds.h> | |
39 | #include <pcmcia/ss.h> | |
40 | ||
41 | #include "cs_internal.h" | |
42 | #include "ds_internal.h" | |
43 | ||
44 | static int major_dev = -1; | |
45 | ||
46 | ||
47 | /* Device user information */ | |
48 | #define MAX_EVENTS 32 | |
49 | #define USER_MAGIC 0x7ea4 | |
50 | #define CHECK_USER(u) \ | |
51 | (((u) == NULL) || ((u)->user_magic != USER_MAGIC)) | |
52 | ||
53 | typedef struct user_info_t { | |
54 | u_int user_magic; | |
55 | int event_head, event_tail; | |
56 | event_t event[MAX_EVENTS]; | |
57 | struct user_info_t *next; | |
dc109497 | 58 | struct pcmcia_socket *socket; |
e7a480d2 DB |
59 | } user_info_t; |
60 | ||
61 | ||
62 | #ifdef DEBUG | |
63 | extern int ds_pc_debug; | |
64 | #define cs_socket_name(skt) ((skt)->dev.class_id) | |
65 | ||
66 | #define ds_dbg(lvl, fmt, arg...) do { \ | |
67 | if (ds_pc_debug >= lvl) \ | |
68 | printk(KERN_DEBUG "ds: " fmt , ## arg); \ | |
69 | } while (0) | |
70 | #else | |
71 | #define ds_dbg(lvl, fmt, arg...) do { } while (0) | |
72 | #endif | |
73 | ||
3448139b DB |
74 | static const char *release = "Linux Kernel Card Services"; |
75 | ||
76 | /** pcmcia_get_card_services_info | |
77 | * | |
78 | * Return information about this version of Card Services | |
79 | */ | |
80 | static int pcmcia_get_card_services_info(servinfo_t *info) | |
81 | { | |
82 | unsigned int socket_count = 0; | |
83 | struct list_head *tmp; | |
84 | info->Signature[0] = 'C'; | |
85 | info->Signature[1] = 'S'; | |
86 | down_read(&pcmcia_socket_list_rwsem); | |
87 | list_for_each(tmp, &pcmcia_socket_list) | |
88 | socket_count++; | |
89 | up_read(&pcmcia_socket_list_rwsem); | |
90 | info->Count = socket_count; | |
91 | info->Revision = CS_RELEASE_CODE; | |
92 | info->CSLevel = 0x0210; | |
93 | info->VendorString = (char *)release; | |
94 | return CS_SUCCESS; | |
95 | } /* get_card_services_info */ | |
96 | ||
e7a480d2 | 97 | |
e7a480d2 DB |
98 | /* backwards-compatible accessing of driver --- by name! */ |
99 | ||
100 | static struct pcmcia_driver * get_pcmcia_driver (dev_info_t *dev_info) | |
101 | { | |
102 | struct device_driver *drv; | |
103 | struct pcmcia_driver *p_drv; | |
104 | ||
105 | drv = driver_find((char *) dev_info, &pcmcia_bus_type); | |
106 | if (!drv) | |
107 | return NULL; | |
108 | ||
109 | p_drv = container_of(drv, struct pcmcia_driver, drv); | |
110 | ||
111 | return (p_drv); | |
112 | } | |
113 | ||
114 | ||
115 | #ifdef CONFIG_PROC_FS | |
116 | static struct proc_dir_entry *proc_pccard = NULL; | |
117 | ||
118 | static int proc_read_drivers_callback(struct device_driver *driver, void *d) | |
119 | { | |
120 | char **p = d; | |
121 | struct pcmcia_driver *p_drv = container_of(driver, | |
122 | struct pcmcia_driver, drv); | |
123 | ||
124 | *p += sprintf(*p, "%-24.24s 1 %d\n", p_drv->drv.name, | |
125 | #ifdef CONFIG_MODULE_UNLOAD | |
126 | (p_drv->owner) ? module_refcount(p_drv->owner) : 1 | |
127 | #else | |
128 | 1 | |
129 | #endif | |
130 | ); | |
131 | d = (void *) p; | |
132 | ||
133 | return 0; | |
134 | } | |
135 | ||
136 | static int proc_read_drivers(char *buf, char **start, off_t pos, | |
137 | int count, int *eof, void *data) | |
138 | { | |
139 | char *p = buf; | |
140 | ||
141 | bus_for_each_drv(&pcmcia_bus_type, NULL, | |
142 | (void *) &p, proc_read_drivers_callback); | |
143 | ||
144 | return (p - buf); | |
145 | } | |
146 | #endif | |
147 | ||
148 | /*====================================================================== | |
149 | ||
150 | These manage a ring buffer of events pending for one user process | |
151 | ||
152 | ======================================================================*/ | |
153 | ||
154 | ||
155 | static int queue_empty(user_info_t *user) | |
156 | { | |
157 | return (user->event_head == user->event_tail); | |
158 | } | |
159 | ||
160 | static event_t get_queued_event(user_info_t *user) | |
161 | { | |
162 | user->event_tail = (user->event_tail+1) % MAX_EVENTS; | |
163 | return user->event[user->event_tail]; | |
164 | } | |
165 | ||
166 | static void queue_event(user_info_t *user, event_t event) | |
167 | { | |
168 | user->event_head = (user->event_head+1) % MAX_EVENTS; | |
169 | if (user->event_head == user->event_tail) | |
170 | user->event_tail = (user->event_tail+1) % MAX_EVENTS; | |
171 | user->event[user->event_head] = event; | |
172 | } | |
173 | ||
dc109497 | 174 | void handle_event(struct pcmcia_socket *s, event_t event) |
e7a480d2 DB |
175 | { |
176 | user_info_t *user; | |
177 | for (user = s->user; user; user = user->next) | |
178 | queue_event(user, event); | |
179 | wake_up_interruptible(&s->queue); | |
180 | } | |
181 | ||
182 | ||
183 | /*====================================================================== | |
184 | ||
185 | bind_request() and bind_device() are merged by now. Register_client() | |
186 | is called right at the end of bind_request(), during the driver's | |
187 | ->attach() call. Individual descriptions: | |
188 | ||
189 | bind_request() connects a socket to a particular client driver. | |
190 | It looks up the specified device ID in the list of registered | |
191 | drivers, binds it to the socket, and tries to create an instance | |
192 | of the device. unbind_request() deletes a driver instance. | |
193 | ||
194 | Bind_device() associates a device driver with a particular socket. | |
195 | It is normally called by Driver Services after it has identified | |
196 | a newly inserted card. An instance of that driver will then be | |
197 | eligible to register as a client of this socket. | |
198 | ||
199 | Register_client() uses the dev_info_t handle to match the | |
200 | caller with a socket. The driver must have already been bound | |
201 | to a socket with bind_device() -- in fact, bind_device() | |
202 | allocates the client structure that will be used. | |
203 | ||
204 | ======================================================================*/ | |
205 | ||
dc109497 | 206 | static int bind_request(struct pcmcia_socket *s, bind_info_t *bind_info) |
e7a480d2 DB |
207 | { |
208 | struct pcmcia_driver *p_drv; | |
209 | struct pcmcia_device *p_dev; | |
210 | int ret = 0; | |
211 | unsigned long flags; | |
212 | ||
dc109497 | 213 | s = pcmcia_get_socket(s); |
e7a480d2 DB |
214 | if (!s) |
215 | return -EINVAL; | |
216 | ||
dc109497 | 217 | ds_dbg(2, "bind_request(%d, '%s')\n", s->sock, |
e7a480d2 DB |
218 | (char *)bind_info->dev_info); |
219 | ||
220 | p_drv = get_pcmcia_driver(&bind_info->dev_info); | |
221 | if (!p_drv) { | |
222 | ret = -EINVAL; | |
223 | goto err_put; | |
224 | } | |
225 | ||
226 | if (!try_module_get(p_drv->owner)) { | |
227 | ret = -EINVAL; | |
228 | goto err_put_driver; | |
229 | } | |
230 | ||
231 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
232 | list_for_each_entry(p_dev, &s->devices_list, socket_device_list) { | |
233 | if (p_dev->func == bind_info->function) { | |
234 | if ((p_dev->dev.driver == &p_drv->drv)) { | |
235 | if (p_dev->cardmgr) { | |
236 | /* if there's already a device | |
237 | * registered, and it was registered | |
238 | * by userspace before, we need to | |
239 | * return the "instance". */ | |
240 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
241 | bind_info->instance = p_dev->instance; | |
242 | ret = -EBUSY; | |
243 | goto err_put_module; | |
244 | } else { | |
245 | /* the correct driver managed to bind | |
246 | * itself magically to the correct | |
247 | * device. */ | |
248 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
249 | p_dev->cardmgr = p_drv; | |
250 | ret = 0; | |
251 | goto err_put_module; | |
252 | } | |
253 | } else if (!p_dev->dev.driver) { | |
254 | /* there's already a device available where | |
255 | * no device has been bound to yet. So we don't | |
256 | * need to register a device! */ | |
257 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
258 | goto rescan; | |
259 | } | |
260 | } | |
261 | } | |
262 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
263 | ||
264 | p_dev = pcmcia_device_add(s, bind_info->function); | |
265 | if (!p_dev) { | |
266 | ret = -EIO; | |
267 | goto err_put_module; | |
268 | } | |
269 | ||
270 | rescan: | |
271 | p_dev->cardmgr = p_drv; | |
272 | ||
273 | /* if a driver is already running, we can abort */ | |
274 | if (p_dev->dev.driver) | |
275 | goto err_put_module; | |
276 | ||
277 | /* | |
278 | * Prevent this racing with a card insertion. | |
279 | */ | |
dc109497 | 280 | down(&s->skt_sem); |
e7a480d2 | 281 | bus_rescan_devices(&pcmcia_bus_type); |
dc109497 | 282 | up(&s->skt_sem); |
e7a480d2 DB |
283 | |
284 | /* check whether the driver indeed matched. I don't care if this | |
285 | * is racy or not, because it can only happen on cardmgr access | |
286 | * paths... | |
287 | */ | |
288 | if (!(p_dev->dev.driver == &p_drv->drv)) | |
289 | p_dev->cardmgr = NULL; | |
290 | ||
291 | err_put_module: | |
292 | module_put(p_drv->owner); | |
293 | err_put_driver: | |
294 | put_driver(&p_drv->drv); | |
295 | err_put: | |
dc109497 | 296 | pcmcia_put_socket(s); |
e7a480d2 DB |
297 | |
298 | return (ret); | |
299 | } /* bind_request */ | |
300 | ||
33519ddd DB |
301 | #ifdef CONFIG_CARDBUS |
302 | ||
303 | static struct pci_bus *pcmcia_lookup_bus(struct pcmcia_socket *s) | |
304 | { | |
305 | if (!s || !(s->state & SOCKET_CARDBUS)) | |
306 | return NULL; | |
e7a480d2 | 307 | |
33519ddd DB |
308 | return s->cb_dev->subordinate; |
309 | } | |
310 | #endif | |
e7a480d2 | 311 | |
dc109497 | 312 | static int get_device_info(struct pcmcia_socket *s, bind_info_t *bind_info, int first) |
e7a480d2 DB |
313 | { |
314 | dev_node_t *node; | |
315 | struct pcmcia_device *p_dev; | |
316 | unsigned long flags; | |
317 | int ret = 0; | |
318 | ||
319 | #ifdef CONFIG_CARDBUS | |
320 | /* | |
321 | * Some unbelievably ugly code to associate the PCI cardbus | |
322 | * device and its driver with the PCMCIA "bind" information. | |
323 | */ | |
324 | { | |
325 | struct pci_bus *bus; | |
326 | ||
dc109497 | 327 | bus = pcmcia_lookup_bus(s); |
e7a480d2 DB |
328 | if (bus) { |
329 | struct list_head *list; | |
330 | struct pci_dev *dev = NULL; | |
331 | ||
332 | list = bus->devices.next; | |
333 | while (list != &bus->devices) { | |
334 | struct pci_dev *pdev = pci_dev_b(list); | |
335 | list = list->next; | |
336 | ||
337 | if (first) { | |
338 | dev = pdev; | |
339 | break; | |
340 | } | |
341 | ||
342 | /* Try to handle "next" here some way? */ | |
343 | } | |
344 | if (dev && dev->driver) { | |
345 | strlcpy(bind_info->name, dev->driver->name, DEV_NAME_LEN); | |
346 | bind_info->major = 0; | |
347 | bind_info->minor = 0; | |
348 | bind_info->next = NULL; | |
349 | return 0; | |
350 | } | |
351 | } | |
352 | } | |
353 | #endif | |
354 | ||
355 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); | |
356 | list_for_each_entry(p_dev, &s->devices_list, socket_device_list) { | |
357 | if (p_dev->func == bind_info->function) { | |
358 | p_dev = pcmcia_get_dev(p_dev); | |
359 | if (!p_dev) | |
360 | continue; | |
361 | goto found; | |
362 | } | |
363 | } | |
364 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
365 | return -ENODEV; | |
366 | ||
367 | found: | |
368 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); | |
369 | ||
370 | if ((!p_dev->instance) || | |
371 | (p_dev->instance->state & DEV_CONFIG_PENDING)) { | |
372 | ret = -EAGAIN; | |
373 | goto err_put; | |
374 | } | |
375 | ||
376 | if (first) | |
377 | node = p_dev->instance->dev; | |
378 | else | |
379 | for (node = p_dev->instance->dev; node; node = node->next) | |
380 | if (node == bind_info->next) | |
381 | break; | |
382 | if (!node) { | |
383 | ret = -ENODEV; | |
384 | goto err_put; | |
385 | } | |
386 | ||
387 | strlcpy(bind_info->name, node->dev_name, DEV_NAME_LEN); | |
388 | bind_info->major = node->major; | |
389 | bind_info->minor = node->minor; | |
390 | bind_info->next = node->next; | |
391 | ||
392 | err_put: | |
393 | pcmcia_put_dev(p_dev); | |
394 | return (ret); | |
395 | } /* get_device_info */ | |
396 | ||
397 | ||
398 | static int ds_open(struct inode *inode, struct file *file) | |
399 | { | |
400 | socket_t i = iminor(inode); | |
dc109497 | 401 | struct pcmcia_socket *s; |
e7a480d2 DB |
402 | user_info_t *user; |
403 | ||
404 | ds_dbg(0, "ds_open(socket %d)\n", i); | |
405 | ||
dc109497 | 406 | s = pcmcia_get_socket_by_nr(i); |
e7a480d2 DB |
407 | if (!s) |
408 | return -ENODEV; | |
dc109497 | 409 | s = pcmcia_get_socket(s); |
e7a480d2 DB |
410 | if (!s) |
411 | return -ENODEV; | |
412 | ||
413 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { | |
b5e43913 | 414 | if (s->pcmcia_state.busy) { |
dc109497 | 415 | pcmcia_put_socket(s); |
e7a480d2 DB |
416 | return -EBUSY; |
417 | } | |
418 | else | |
b5e43913 | 419 | s->pcmcia_state.busy = 1; |
e7a480d2 DB |
420 | } |
421 | ||
422 | user = kmalloc(sizeof(user_info_t), GFP_KERNEL); | |
423 | if (!user) { | |
dc109497 | 424 | pcmcia_put_socket(s); |
e7a480d2 DB |
425 | return -ENOMEM; |
426 | } | |
427 | user->event_tail = user->event_head = 0; | |
428 | user->next = s->user; | |
429 | user->user_magic = USER_MAGIC; | |
430 | user->socket = s; | |
431 | s->user = user; | |
432 | file->private_data = user; | |
433 | ||
b5e43913 | 434 | if (s->pcmcia_state.present) |
e7a480d2 DB |
435 | queue_event(user, CS_EVENT_CARD_INSERTION); |
436 | return 0; | |
437 | } /* ds_open */ | |
438 | ||
439 | /*====================================================================*/ | |
440 | ||
441 | static int ds_release(struct inode *inode, struct file *file) | |
442 | { | |
dc109497 | 443 | struct pcmcia_socket *s; |
e7a480d2 DB |
444 | user_info_t *user, **link; |
445 | ||
446 | ds_dbg(0, "ds_release(socket %d)\n", iminor(inode)); | |
447 | ||
448 | user = file->private_data; | |
449 | if (CHECK_USER(user)) | |
450 | goto out; | |
451 | ||
452 | s = user->socket; | |
453 | ||
454 | /* Unlink user data structure */ | |
455 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { | |
b5e43913 | 456 | s->pcmcia_state.busy = 0; |
e7a480d2 DB |
457 | } |
458 | file->private_data = NULL; | |
459 | for (link = &s->user; *link; link = &(*link)->next) | |
460 | if (*link == user) break; | |
461 | if (link == NULL) | |
462 | goto out; | |
463 | *link = user->next; | |
464 | user->user_magic = 0; | |
465 | kfree(user); | |
dc109497 | 466 | pcmcia_put_socket(s); |
e7a480d2 DB |
467 | out: |
468 | return 0; | |
469 | } /* ds_release */ | |
470 | ||
471 | /*====================================================================*/ | |
472 | ||
473 | static ssize_t ds_read(struct file *file, char __user *buf, | |
474 | size_t count, loff_t *ppos) | |
475 | { | |
dc109497 | 476 | struct pcmcia_socket *s; |
e7a480d2 DB |
477 | user_info_t *user; |
478 | int ret; | |
479 | ||
480 | ds_dbg(2, "ds_read(socket %d)\n", iminor(file->f_dentry->d_inode)); | |
481 | ||
482 | if (count < 4) | |
483 | return -EINVAL; | |
484 | ||
485 | user = file->private_data; | |
486 | if (CHECK_USER(user)) | |
487 | return -EIO; | |
488 | ||
489 | s = user->socket; | |
b5e43913 | 490 | if (s->pcmcia_state.dead) |
e7a480d2 DB |
491 | return -EIO; |
492 | ||
493 | ret = wait_event_interruptible(s->queue, !queue_empty(user)); | |
494 | if (ret == 0) | |
495 | ret = put_user(get_queued_event(user), (int __user *)buf) ? -EFAULT : 4; | |
496 | ||
497 | return ret; | |
498 | } /* ds_read */ | |
499 | ||
500 | /*====================================================================*/ | |
501 | ||
502 | static ssize_t ds_write(struct file *file, const char __user *buf, | |
503 | size_t count, loff_t *ppos) | |
504 | { | |
505 | ds_dbg(2, "ds_write(socket %d)\n", iminor(file->f_dentry->d_inode)); | |
506 | ||
507 | if (count != 4) | |
508 | return -EINVAL; | |
509 | if ((file->f_flags & O_ACCMODE) == O_RDONLY) | |
510 | return -EBADF; | |
511 | ||
512 | return -EIO; | |
513 | } /* ds_write */ | |
514 | ||
515 | /*====================================================================*/ | |
516 | ||
517 | /* No kernel lock - fine */ | |
518 | static u_int ds_poll(struct file *file, poll_table *wait) | |
519 | { | |
dc109497 | 520 | struct pcmcia_socket *s; |
e7a480d2 DB |
521 | user_info_t *user; |
522 | ||
523 | ds_dbg(2, "ds_poll(socket %d)\n", iminor(file->f_dentry->d_inode)); | |
524 | ||
525 | user = file->private_data; | |
526 | if (CHECK_USER(user)) | |
527 | return POLLERR; | |
528 | s = user->socket; | |
529 | /* | |
530 | * We don't check for a dead socket here since that | |
531 | * will send cardmgr into an endless spin. | |
532 | */ | |
533 | poll_wait(file, &s->queue, wait); | |
534 | if (!queue_empty(user)) | |
535 | return POLLIN | POLLRDNORM; | |
536 | return 0; | |
537 | } /* ds_poll */ | |
538 | ||
539 | /*====================================================================*/ | |
540 | ||
541 | extern int pcmcia_adjust_resource_info(adjust_t *adj); | |
542 | ||
543 | static int ds_ioctl(struct inode * inode, struct file * file, | |
544 | u_int cmd, u_long arg) | |
545 | { | |
dc109497 | 546 | struct pcmcia_socket *s; |
e7a480d2 DB |
547 | void __user *uarg = (char __user *)arg; |
548 | u_int size; | |
549 | int ret, err; | |
550 | ds_ioctl_arg_t *buf; | |
551 | user_info_t *user; | |
552 | ||
553 | ds_dbg(2, "ds_ioctl(socket %d, %#x, %#lx)\n", iminor(inode), cmd, arg); | |
554 | ||
555 | user = file->private_data; | |
556 | if (CHECK_USER(user)) | |
557 | return -EIO; | |
558 | ||
559 | s = user->socket; | |
b5e43913 | 560 | if (s->pcmcia_state.dead) |
e7a480d2 DB |
561 | return -EIO; |
562 | ||
563 | size = (cmd & IOCSIZE_MASK) >> IOCSIZE_SHIFT; | |
564 | if (size > sizeof(ds_ioctl_arg_t)) return -EINVAL; | |
565 | ||
566 | /* Permission check */ | |
567 | if (!(cmd & IOC_OUT) && !capable(CAP_SYS_ADMIN)) | |
568 | return -EPERM; | |
569 | ||
570 | if (cmd & IOC_IN) { | |
571 | if (!access_ok(VERIFY_READ, uarg, size)) { | |
572 | ds_dbg(3, "ds_ioctl(): verify_read = %d\n", -EFAULT); | |
573 | return -EFAULT; | |
574 | } | |
575 | } | |
576 | if (cmd & IOC_OUT) { | |
577 | if (!access_ok(VERIFY_WRITE, uarg, size)) { | |
578 | ds_dbg(3, "ds_ioctl(): verify_write = %d\n", -EFAULT); | |
579 | return -EFAULT; | |
580 | } | |
581 | } | |
582 | buf = kmalloc(sizeof(ds_ioctl_arg_t), GFP_KERNEL); | |
583 | if (!buf) | |
584 | return -ENOMEM; | |
585 | ||
586 | err = ret = 0; | |
587 | ||
588 | if (cmd & IOC_IN) __copy_from_user((char *)buf, uarg, size); | |
589 | ||
590 | switch (cmd) { | |
591 | case DS_ADJUST_RESOURCE_INFO: | |
592 | ret = pcmcia_adjust_resource_info(&buf->adjust); | |
593 | break; | |
594 | case DS_GET_CARD_SERVICES_INFO: | |
595 | ret = pcmcia_get_card_services_info(&buf->servinfo); | |
596 | break; | |
597 | case DS_GET_CONFIGURATION_INFO: | |
598 | if (buf->config.Function && | |
dc109497 | 599 | (buf->config.Function >= s->functions)) |
e7a480d2 DB |
600 | ret = CS_BAD_ARGS; |
601 | else | |
dc109497 | 602 | ret = pccard_get_configuration_info(s, |
e7a480d2 DB |
603 | buf->config.Function, &buf->config); |
604 | break; | |
605 | case DS_GET_FIRST_TUPLE: | |
dc109497 DB |
606 | down(&s->skt_sem); |
607 | pcmcia_validate_mem(s); | |
608 | up(&s->skt_sem); | |
609 | ret = pccard_get_first_tuple(s, BIND_FN_ALL, &buf->tuple); | |
e7a480d2 DB |
610 | break; |
611 | case DS_GET_NEXT_TUPLE: | |
dc109497 | 612 | ret = pccard_get_next_tuple(s, BIND_FN_ALL, &buf->tuple); |
e7a480d2 DB |
613 | break; |
614 | case DS_GET_TUPLE_DATA: | |
615 | buf->tuple.TupleData = buf->tuple_parse.data; | |
616 | buf->tuple.TupleDataMax = sizeof(buf->tuple_parse.data); | |
dc109497 | 617 | ret = pccard_get_tuple_data(s, &buf->tuple); |
e7a480d2 DB |
618 | break; |
619 | case DS_PARSE_TUPLE: | |
620 | buf->tuple.TupleData = buf->tuple_parse.data; | |
621 | ret = pccard_parse_tuple(&buf->tuple, &buf->tuple_parse.parse); | |
622 | break; | |
623 | case DS_RESET_CARD: | |
dc109497 | 624 | ret = pccard_reset_card(s); |
e7a480d2 DB |
625 | break; |
626 | case DS_GET_STATUS: | |
627 | if (buf->status.Function && | |
dc109497 | 628 | (buf->status.Function >= s->functions)) |
e7a480d2 DB |
629 | ret = CS_BAD_ARGS; |
630 | else | |
dc109497 | 631 | ret = pccard_get_status(s, buf->status.Function, &buf->status); |
e7a480d2 DB |
632 | break; |
633 | case DS_VALIDATE_CIS: | |
dc109497 DB |
634 | down(&s->skt_sem); |
635 | pcmcia_validate_mem(s); | |
636 | up(&s->skt_sem); | |
637 | ret = pccard_validate_cis(s, BIND_FN_ALL, &buf->cisinfo); | |
e7a480d2 DB |
638 | break; |
639 | case DS_SUSPEND_CARD: | |
dc109497 | 640 | ret = pcmcia_suspend_card(s); |
e7a480d2 DB |
641 | break; |
642 | case DS_RESUME_CARD: | |
dc109497 | 643 | ret = pcmcia_resume_card(s); |
e7a480d2 DB |
644 | break; |
645 | case DS_EJECT_CARD: | |
dc109497 | 646 | err = pcmcia_eject_card(s); |
e7a480d2 DB |
647 | break; |
648 | case DS_INSERT_CARD: | |
dc109497 | 649 | err = pcmcia_insert_card(s); |
e7a480d2 DB |
650 | break; |
651 | case DS_ACCESS_CONFIGURATION_REGISTER: | |
652 | if ((buf->conf_reg.Action == CS_WRITE) && !capable(CAP_SYS_ADMIN)) { | |
653 | err = -EPERM; | |
654 | goto free_out; | |
655 | } | |
656 | if (buf->conf_reg.Function && | |
dc109497 | 657 | (buf->conf_reg.Function >= s->functions)) |
e7a480d2 DB |
658 | ret = CS_BAD_ARGS; |
659 | else | |
dc109497 | 660 | ret = pccard_access_configuration_register(s, |
e7a480d2 DB |
661 | buf->conf_reg.Function, &buf->conf_reg); |
662 | break; | |
663 | case DS_GET_FIRST_REGION: | |
664 | case DS_GET_NEXT_REGION: | |
665 | case DS_BIND_MTD: | |
666 | if (!capable(CAP_SYS_ADMIN)) { | |
667 | err = -EPERM; | |
668 | goto free_out; | |
669 | } else { | |
670 | static int printed = 0; | |
671 | if (!printed) { | |
672 | printk(KERN_WARNING "2.6. kernels use pcmciamtd instead of memory_cs.c and do not require special\n"); | |
673 | printk(KERN_WARNING "MTD handling any more.\n"); | |
674 | printed++; | |
675 | } | |
676 | } | |
677 | err = -EINVAL; | |
678 | goto free_out; | |
679 | break; | |
680 | case DS_GET_FIRST_WINDOW: | |
dc109497 | 681 | ret = pcmcia_get_window(s, &buf->win_info.handle, 0, |
e7a480d2 DB |
682 | &buf->win_info.window); |
683 | break; | |
684 | case DS_GET_NEXT_WINDOW: | |
dc109497 | 685 | ret = pcmcia_get_window(s, &buf->win_info.handle, |
e7a480d2 DB |
686 | buf->win_info.handle->index + 1, &buf->win_info.window); |
687 | break; | |
688 | case DS_GET_MEM_PAGE: | |
689 | ret = pcmcia_get_mem_page(buf->win_info.handle, | |
690 | &buf->win_info.map); | |
691 | break; | |
692 | case DS_REPLACE_CIS: | |
dc109497 | 693 | ret = pcmcia_replace_cis(s, &buf->cisdump); |
e7a480d2 DB |
694 | break; |
695 | case DS_BIND_REQUEST: | |
696 | if (!capable(CAP_SYS_ADMIN)) { | |
697 | err = -EPERM; | |
698 | goto free_out; | |
699 | } | |
700 | err = bind_request(s, &buf->bind_info); | |
701 | break; | |
702 | case DS_GET_DEVICE_INFO: | |
703 | err = get_device_info(s, &buf->bind_info, 1); | |
704 | break; | |
705 | case DS_GET_NEXT_DEVICE: | |
706 | err = get_device_info(s, &buf->bind_info, 0); | |
707 | break; | |
708 | case DS_UNBIND_REQUEST: | |
709 | err = 0; | |
710 | break; | |
711 | default: | |
712 | err = -EINVAL; | |
713 | } | |
714 | ||
715 | if ((err == 0) && (ret != CS_SUCCESS)) { | |
716 | ds_dbg(2, "ds_ioctl: ret = %d\n", ret); | |
717 | switch (ret) { | |
718 | case CS_BAD_SOCKET: case CS_NO_CARD: | |
719 | err = -ENODEV; break; | |
720 | case CS_BAD_ARGS: case CS_BAD_ATTRIBUTE: case CS_BAD_IRQ: | |
721 | case CS_BAD_TUPLE: | |
722 | err = -EINVAL; break; | |
723 | case CS_IN_USE: | |
724 | err = -EBUSY; break; | |
725 | case CS_OUT_OF_RESOURCE: | |
726 | err = -ENOSPC; break; | |
727 | case CS_NO_MORE_ITEMS: | |
728 | err = -ENODATA; break; | |
729 | case CS_UNSUPPORTED_FUNCTION: | |
730 | err = -ENOSYS; break; | |
731 | default: | |
732 | err = -EIO; break; | |
733 | } | |
734 | } | |
735 | ||
736 | if (cmd & IOC_OUT) { | |
737 | if (__copy_to_user(uarg, (char *)buf, size)) | |
738 | err = -EFAULT; | |
739 | } | |
740 | ||
741 | free_out: | |
742 | kfree(buf); | |
743 | return err; | |
744 | } /* ds_ioctl */ | |
745 | ||
746 | /*====================================================================*/ | |
747 | ||
748 | static struct file_operations ds_fops = { | |
749 | .owner = THIS_MODULE, | |
750 | .open = ds_open, | |
751 | .release = ds_release, | |
752 | .ioctl = ds_ioctl, | |
753 | .read = ds_read, | |
754 | .write = ds_write, | |
755 | .poll = ds_poll, | |
756 | }; | |
757 | ||
758 | void __init pcmcia_setup_ioctl(void) { | |
759 | int i; | |
760 | ||
761 | /* Set up character device for user mode clients */ | |
762 | i = register_chrdev(0, "pcmcia", &ds_fops); | |
763 | if (i == -EBUSY) | |
764 | printk(KERN_NOTICE "unable to find a free device # for " | |
765 | "Driver Services\n"); | |
766 | else | |
767 | major_dev = i; | |
768 | ||
769 | #ifdef CONFIG_PROC_FS | |
770 | proc_pccard = proc_mkdir("pccard", proc_bus); | |
771 | if (proc_pccard) | |
772 | create_proc_read_entry("drivers",0,proc_pccard,proc_read_drivers,NULL); | |
773 | #endif | |
774 | } | |
775 | ||
776 | ||
777 | void __exit pcmcia_cleanup_ioctl(void) { | |
778 | #ifdef CONFIG_PROC_FS | |
779 | if (proc_pccard) { | |
780 | remove_proc_entry("drivers", proc_pccard); | |
781 | remove_proc_entry("pccard", proc_bus); | |
782 | } | |
783 | #endif | |
784 | if (major_dev != -1) | |
785 | unregister_chrdev(major_dev, "pcmcia"); | |
786 | } |