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> | |
5a0e3ad6 | 30 | #include <linux/slab.h> |
e6be4a8c | 31 | #include <linux/seq_file.h> |
0bec0bba | 32 | #include <linux/smp_lock.h> |
e7a480d2 | 33 | #include <linux/workqueue.h> |
e7a480d2 | 34 | |
e7a480d2 DB |
35 | #include <pcmcia/cs_types.h> |
36 | #include <pcmcia/cs.h> | |
e7a480d2 | 37 | #include <pcmcia/cistpl.h> |
4aeba013 | 38 | #include <pcmcia/cisreg.h> |
e7a480d2 DB |
39 | #include <pcmcia/ds.h> |
40 | #include <pcmcia/ss.h> | |
41 | ||
42 | #include "cs_internal.h" | |
e7a480d2 DB |
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 | ||
855cdf13 DB |
62 | static struct pcmcia_device *get_pcmcia_device(struct pcmcia_socket *s, |
63 | unsigned int function) | |
64 | { | |
65 | struct pcmcia_device *p_dev = NULL; | |
855cdf13 | 66 | |
00ce99ff | 67 | mutex_lock(&s->ops_mutex); |
855cdf13 DB |
68 | list_for_each_entry(p_dev, &s->devices_list, socket_device_list) { |
69 | if (p_dev->func == function) { | |
00ce99ff | 70 | mutex_unlock(&s->ops_mutex); |
855cdf13 DB |
71 | return pcmcia_get_dev(p_dev); |
72 | } | |
73 | } | |
00ce99ff | 74 | mutex_unlock(&s->ops_mutex); |
855cdf13 DB |
75 | return NULL; |
76 | } | |
e7a480d2 | 77 | |
e7a480d2 DB |
78 | /* backwards-compatible accessing of driver --- by name! */ |
79 | ||
855cdf13 | 80 | static struct pcmcia_driver *get_pcmcia_driver(dev_info_t *dev_info) |
e7a480d2 DB |
81 | { |
82 | struct device_driver *drv; | |
83 | struct pcmcia_driver *p_drv; | |
84 | ||
85 | drv = driver_find((char *) dev_info, &pcmcia_bus_type); | |
86 | if (!drv) | |
87 | return NULL; | |
88 | ||
89 | p_drv = container_of(drv, struct pcmcia_driver, drv); | |
90 | ||
9fea84f4 | 91 | return p_drv; |
e7a480d2 DB |
92 | } |
93 | ||
94 | ||
95 | #ifdef CONFIG_PROC_FS | |
9fea84f4 | 96 | static struct proc_dir_entry *proc_pccard; |
e7a480d2 | 97 | |
e6be4a8c | 98 | static int proc_read_drivers_callback(struct device_driver *driver, void *_m) |
e7a480d2 | 99 | { |
e6be4a8c | 100 | struct seq_file *m = _m; |
e7a480d2 DB |
101 | struct pcmcia_driver *p_drv = container_of(driver, |
102 | struct pcmcia_driver, drv); | |
103 | ||
e6be4a8c | 104 | seq_printf(m, "%-24.24s 1 %d\n", p_drv->drv.name, |
e7a480d2 DB |
105 | #ifdef CONFIG_MODULE_UNLOAD |
106 | (p_drv->owner) ? module_refcount(p_drv->owner) : 1 | |
107 | #else | |
108 | 1 | |
109 | #endif | |
110 | ); | |
e7a480d2 DB |
111 | return 0; |
112 | } | |
113 | ||
e6be4a8c | 114 | static int pccard_drivers_proc_show(struct seq_file *m, void *v) |
e7a480d2 | 115 | { |
e6be4a8c AD |
116 | return bus_for_each_drv(&pcmcia_bus_type, NULL, |
117 | m, proc_read_drivers_callback); | |
118 | } | |
e7a480d2 | 119 | |
e6be4a8c AD |
120 | static int pccard_drivers_proc_open(struct inode *inode, struct file *file) |
121 | { | |
122 | return single_open(file, pccard_drivers_proc_show, NULL); | |
e7a480d2 | 123 | } |
e6be4a8c AD |
124 | |
125 | static const struct file_operations pccard_drivers_proc_fops = { | |
126 | .owner = THIS_MODULE, | |
127 | .open = pccard_drivers_proc_open, | |
128 | .read = seq_read, | |
129 | .llseek = seq_lseek, | |
130 | .release = single_release, | |
131 | }; | |
e7a480d2 DB |
132 | #endif |
133 | ||
c5023801 DB |
134 | |
135 | #ifdef CONFIG_PCMCIA_PROBE | |
136 | ||
137 | static int adjust_irq(struct pcmcia_socket *s, adjust_t *adj) | |
138 | { | |
139 | int irq; | |
140 | u32 mask; | |
141 | ||
142 | irq = adj->resource.irq.IRQ; | |
143 | if ((irq < 0) || (irq > 15)) | |
69ba4433 | 144 | return -EINVAL; |
c5023801 DB |
145 | |
146 | if (adj->Action != REMOVE_MANAGED_RESOURCE) | |
147 | return 0; | |
148 | ||
149 | mask = 1 << irq; | |
150 | ||
151 | if (!(s->irq_mask & mask)) | |
152 | return 0; | |
153 | ||
154 | s->irq_mask &= ~mask; | |
155 | ||
156 | return 0; | |
157 | } | |
158 | ||
159 | #else | |
160 | ||
9fea84f4 DB |
161 | static inline int adjust_irq(struct pcmcia_socket *s, adjust_t *adj) |
162 | { | |
4c89e88b | 163 | return 0; |
c5023801 DB |
164 | } |
165 | ||
166 | #endif | |
167 | ||
168 | static int pcmcia_adjust_resource_info(adjust_t *adj) | |
169 | { | |
170 | struct pcmcia_socket *s; | |
de6405e9 | 171 | int ret = -ENOSYS; |
c5023801 DB |
172 | |
173 | down_read(&pcmcia_socket_list_rwsem); | |
174 | list_for_each_entry(s, &pcmcia_socket_list, socket_list) { | |
175 | ||
176 | if (adj->Resource == RES_IRQ) | |
177 | ret = adjust_irq(s, adj); | |
178 | ||
179 | else if (s->resource_ops->add_io) { | |
180 | unsigned long begin, end; | |
181 | ||
182 | /* you can't use the old interface if the new | |
183 | * one was used before */ | |
00ce99ff | 184 | mutex_lock(&s->ops_mutex); |
c5023801 DB |
185 | if ((s->resource_setup_new) && |
186 | !(s->resource_setup_old)) { | |
00ce99ff | 187 | mutex_unlock(&s->ops_mutex); |
c5023801 DB |
188 | continue; |
189 | } else if (!(s->resource_setup_old)) | |
190 | s->resource_setup_old = 1; | |
c5023801 DB |
191 | |
192 | switch (adj->Resource) { | |
193 | case RES_MEMORY_RANGE: | |
194 | begin = adj->resource.memory.Base; | |
195 | end = adj->resource.memory.Base + adj->resource.memory.Size - 1; | |
196 | if (s->resource_ops->add_mem) | |
9fea84f4 | 197 | ret = s->resource_ops->add_mem(s, adj->Action, begin, end); |
c5023801 DB |
198 | case RES_IO_RANGE: |
199 | begin = adj->resource.io.BasePort; | |
200 | end = adj->resource.io.BasePort + adj->resource.io.NumPorts - 1; | |
201 | if (s->resource_ops->add_io) | |
202 | ret = s->resource_ops->add_io(s, adj->Action, begin, end); | |
203 | } | |
204 | if (!ret) { | |
205 | /* as there's no way we know this is the | |
206 | * last call to adjust_resource_info, we | |
207 | * always need to assume this is the latest | |
208 | * one... */ | |
c5023801 | 209 | s->resource_setup_done = 1; |
c5023801 | 210 | } |
cfe5d809 | 211 | mutex_unlock(&s->ops_mutex); |
c5023801 DB |
212 | } |
213 | } | |
214 | up_read(&pcmcia_socket_list_rwsem); | |
215 | ||
9fea84f4 | 216 | return ret; |
c5023801 DB |
217 | } |
218 | ||
d7b0364b DB |
219 | |
220 | /** pcmcia_get_window | |
221 | */ | |
222 | static int pcmcia_get_window(struct pcmcia_socket *s, window_handle_t *wh_out, | |
223 | window_handle_t wh, win_req_t *req) | |
224 | { | |
82f88e36 | 225 | pccard_mem_map *win; |
d7b0364b DB |
226 | window_handle_t w; |
227 | ||
228 | wh--; | |
229 | if (!s || !(s->state & SOCKET_PRESENT)) | |
230 | return -ENODEV; | |
231 | if (wh >= MAX_WIN) | |
232 | return -EINVAL; | |
233 | for (w = wh; w < MAX_WIN; w++) | |
234 | if (s->state & SOCKET_WIN_REQ(w)) | |
235 | break; | |
236 | if (w == MAX_WIN) | |
237 | return -EINVAL; | |
238 | win = &s->win[w]; | |
82f88e36 DB |
239 | req->Base = win->res->start; |
240 | req->Size = win->res->end - win->res->start + 1; | |
241 | req->AccessSpeed = win->speed; | |
d7b0364b | 242 | req->Attributes = 0; |
82f88e36 | 243 | if (win->flags & MAP_ATTRIB) |
d7b0364b | 244 | req->Attributes |= WIN_MEMORY_TYPE_AM; |
82f88e36 | 245 | if (win->flags & MAP_ACTIVE) |
d7b0364b | 246 | req->Attributes |= WIN_ENABLE; |
82f88e36 | 247 | if (win->flags & MAP_16BIT) |
d7b0364b | 248 | req->Attributes |= WIN_DATA_WIDTH_16; |
82f88e36 | 249 | if (win->flags & MAP_USE_WAIT) |
d7b0364b DB |
250 | req->Attributes |= WIN_USE_WAIT; |
251 | ||
252 | *wh_out = w + 1; | |
253 | return 0; | |
254 | } /* pcmcia_get_window */ | |
255 | ||
256 | ||
257 | /** pcmcia_get_mem_page | |
258 | * | |
259 | * Change the card address of an already open memory window. | |
260 | */ | |
261 | static int pcmcia_get_mem_page(struct pcmcia_socket *skt, window_handle_t wh, | |
262 | memreq_t *req) | |
263 | { | |
264 | wh--; | |
265 | if (wh >= MAX_WIN) | |
266 | return -EINVAL; | |
267 | ||
268 | req->Page = 0; | |
82f88e36 | 269 | req->CardOffset = skt->win[wh].card_start; |
d7b0364b DB |
270 | return 0; |
271 | } /* pcmcia_get_mem_page */ | |
272 | ||
273 | ||
4aeba013 DB |
274 | /** pccard_get_status |
275 | * | |
276 | * Get the current socket state bits. We don't support the latched | |
277 | * SocketState yet: I haven't seen any point for it. | |
278 | */ | |
279 | ||
280 | static int pccard_get_status(struct pcmcia_socket *s, | |
281 | struct pcmcia_device *p_dev, | |
282 | cs_status_t *status) | |
283 | { | |
284 | config_t *c; | |
285 | int val; | |
286 | ||
287 | s->ops->get_status(s, &val); | |
288 | status->CardState = status->SocketState = 0; | |
289 | status->CardState |= (val & SS_DETECT) ? CS_EVENT_CARD_DETECT : 0; | |
290 | status->CardState |= (val & SS_CARDBUS) ? CS_EVENT_CB_DETECT : 0; | |
291 | status->CardState |= (val & SS_3VCARD) ? CS_EVENT_3VCARD : 0; | |
292 | status->CardState |= (val & SS_XVCARD) ? CS_EVENT_XVCARD : 0; | |
293 | if (s->state & SOCKET_SUSPEND) | |
294 | status->CardState |= CS_EVENT_PM_SUSPEND; | |
295 | if (!(s->state & SOCKET_PRESENT)) | |
3939c1ef | 296 | return -ENODEV; |
4aeba013 DB |
297 | |
298 | c = (p_dev) ? p_dev->function_config : NULL; | |
299 | ||
300 | if ((c != NULL) && (c->state & CONFIG_LOCKED) && | |
301 | (c->IntType & (INT_MEMORY_AND_IO | INT_ZOOMED_VIDEO))) { | |
302 | u_char reg; | |
303 | if (c->CardValues & PRESENT_PIN_REPLACE) { | |
059f667d | 304 | mutex_lock(&s->ops_mutex); |
4aeba013 | 305 | pcmcia_read_cis_mem(s, 1, (c->ConfigBase+CISREG_PRR)>>1, 1, ®); |
059f667d | 306 | mutex_unlock(&s->ops_mutex); |
4aeba013 DB |
307 | status->CardState |= |
308 | (reg & PRR_WP_STATUS) ? CS_EVENT_WRITE_PROTECT : 0; | |
309 | status->CardState |= | |
310 | (reg & PRR_READY_STATUS) ? CS_EVENT_READY_CHANGE : 0; | |
311 | status->CardState |= | |
312 | (reg & PRR_BVD2_STATUS) ? CS_EVENT_BATTERY_LOW : 0; | |
313 | status->CardState |= | |
314 | (reg & PRR_BVD1_STATUS) ? CS_EVENT_BATTERY_DEAD : 0; | |
315 | } else { | |
316 | /* No PRR? Then assume we're always ready */ | |
317 | status->CardState |= CS_EVENT_READY_CHANGE; | |
318 | } | |
319 | if (c->CardValues & PRESENT_EXT_STATUS) { | |
059f667d | 320 | mutex_lock(&s->ops_mutex); |
4aeba013 | 321 | pcmcia_read_cis_mem(s, 1, (c->ConfigBase+CISREG_ESR)>>1, 1, ®); |
059f667d | 322 | mutex_unlock(&s->ops_mutex); |
4aeba013 DB |
323 | status->CardState |= |
324 | (reg & ESR_REQ_ATTN) ? CS_EVENT_REQUEST_ATTENTION : 0; | |
325 | } | |
4c89e88b | 326 | return 0; |
4aeba013 DB |
327 | } |
328 | status->CardState |= | |
329 | (val & SS_WRPROT) ? CS_EVENT_WRITE_PROTECT : 0; | |
330 | status->CardState |= | |
331 | (val & SS_BATDEAD) ? CS_EVENT_BATTERY_DEAD : 0; | |
332 | status->CardState |= | |
333 | (val & SS_BATWARN) ? CS_EVENT_BATTERY_LOW : 0; | |
334 | status->CardState |= | |
335 | (val & SS_READY) ? CS_EVENT_READY_CHANGE : 0; | |
4c89e88b | 336 | return 0; |
4aeba013 | 337 | } /* pccard_get_status */ |
c5023801 | 338 | |
a0779327 | 339 | static int pccard_get_configuration_info(struct pcmcia_socket *s, |
64f34642 DB |
340 | struct pcmcia_device *p_dev, |
341 | config_info_t *config) | |
342 | { | |
343 | config_t *c; | |
344 | ||
345 | if (!(s->state & SOCKET_PRESENT)) | |
3939c1ef | 346 | return -ENODEV; |
64f34642 DB |
347 | |
348 | ||
349 | #ifdef CONFIG_CARDBUS | |
350 | if (s->state & SOCKET_CARDBUS) { | |
351 | memset(config, 0, sizeof(config_info_t)); | |
352 | config->Vcc = s->socket.Vcc; | |
353 | config->Vpp1 = config->Vpp2 = s->socket.Vpp; | |
354 | config->Option = s->cb_dev->subordinate->number; | |
355 | if (s->state & SOCKET_CARDBUS_CONFIG) { | |
356 | config->Attributes = CONF_VALID_CLIENT; | |
357 | config->IntType = INT_CARDBUS; | |
6f840afb | 358 | config->AssignedIRQ = s->pcmcia_irq; |
64f34642 DB |
359 | if (config->AssignedIRQ) |
360 | config->Attributes |= CONF_ENABLE_IRQ; | |
361 | if (s->io[0].res) { | |
362 | config->BasePort1 = s->io[0].res->start; | |
363 | config->NumPorts1 = s->io[0].res->end - | |
364 | config->BasePort1 + 1; | |
365 | } | |
366 | } | |
4c89e88b | 367 | return 0; |
64f34642 DB |
368 | } |
369 | #endif | |
370 | ||
371 | if (p_dev) { | |
372 | c = p_dev->function_config; | |
373 | config->Function = p_dev->func; | |
374 | } else { | |
375 | c = NULL; | |
376 | config->Function = 0; | |
377 | } | |
378 | ||
379 | if ((c == NULL) || !(c->state & CONFIG_LOCKED)) { | |
380 | config->Attributes = 0; | |
381 | config->Vcc = s->socket.Vcc; | |
382 | config->Vpp1 = config->Vpp2 = s->socket.Vpp; | |
4c89e88b | 383 | return 0; |
64f34642 DB |
384 | } |
385 | ||
386 | config->Attributes = c->Attributes | CONF_VALID_CLIENT; | |
387 | config->Vcc = s->socket.Vcc; | |
388 | config->Vpp1 = config->Vpp2 = s->socket.Vpp; | |
389 | config->IntType = c->IntType; | |
390 | config->ConfigBase = c->ConfigBase; | |
391 | config->Status = c->Status; | |
392 | config->Pin = c->Pin; | |
393 | config->Copy = c->Copy; | |
394 | config->Option = c->Option; | |
395 | config->ExtStatus = c->ExtStatus; | |
396 | config->Present = config->CardValues = c->CardValues; | |
397 | config->IRQAttributes = c->irq.Attributes; | |
6f840afb | 398 | config->AssignedIRQ = s->pcmcia_irq; |
64f34642 DB |
399 | config->BasePort1 = c->io.BasePort1; |
400 | config->NumPorts1 = c->io.NumPorts1; | |
401 | config->Attributes1 = c->io.Attributes1; | |
402 | config->BasePort2 = c->io.BasePort2; | |
403 | config->NumPorts2 = c->io.NumPorts2; | |
404 | config->Attributes2 = c->io.Attributes2; | |
405 | config->IOAddrLines = c->io.IOAddrLines; | |
406 | ||
4c89e88b | 407 | return 0; |
64f34642 DB |
408 | } /* pccard_get_configuration_info */ |
409 | ||
410 | ||
e7a480d2 DB |
411 | /*====================================================================== |
412 | ||
413 | These manage a ring buffer of events pending for one user process | |
414 | ||
415 | ======================================================================*/ | |
416 | ||
417 | ||
418 | static int queue_empty(user_info_t *user) | |
419 | { | |
420 | return (user->event_head == user->event_tail); | |
421 | } | |
422 | ||
423 | static event_t get_queued_event(user_info_t *user) | |
424 | { | |
425 | user->event_tail = (user->event_tail+1) % MAX_EVENTS; | |
426 | return user->event[user->event_tail]; | |
427 | } | |
428 | ||
429 | static void queue_event(user_info_t *user, event_t event) | |
430 | { | |
431 | user->event_head = (user->event_head+1) % MAX_EVENTS; | |
432 | if (user->event_head == user->event_tail) | |
433 | user->event_tail = (user->event_tail+1) % MAX_EVENTS; | |
434 | user->event[user->event_head] = event; | |
435 | } | |
436 | ||
dc109497 | 437 | void handle_event(struct pcmcia_socket *s, event_t event) |
e7a480d2 DB |
438 | { |
439 | user_info_t *user; | |
440 | for (user = s->user; user; user = user->next) | |
441 | queue_event(user, event); | |
442 | wake_up_interruptible(&s->queue); | |
443 | } | |
444 | ||
445 | ||
446 | /*====================================================================== | |
447 | ||
448 | bind_request() and bind_device() are merged by now. Register_client() | |
449 | is called right at the end of bind_request(), during the driver's | |
450 | ->attach() call. Individual descriptions: | |
451 | ||
452 | bind_request() connects a socket to a particular client driver. | |
453 | It looks up the specified device ID in the list of registered | |
454 | drivers, binds it to the socket, and tries to create an instance | |
455 | of the device. unbind_request() deletes a driver instance. | |
456 | ||
457 | Bind_device() associates a device driver with a particular socket. | |
458 | It is normally called by Driver Services after it has identified | |
459 | a newly inserted card. An instance of that driver will then be | |
460 | eligible to register as a client of this socket. | |
461 | ||
462 | Register_client() uses the dev_info_t handle to match the | |
463 | caller with a socket. The driver must have already been bound | |
464 | to a socket with bind_device() -- in fact, bind_device() | |
465 | allocates the client structure that will be used. | |
466 | ||
467 | ======================================================================*/ | |
468 | ||
dc109497 | 469 | static int bind_request(struct pcmcia_socket *s, bind_info_t *bind_info) |
e7a480d2 DB |
470 | { |
471 | struct pcmcia_driver *p_drv; | |
472 | struct pcmcia_device *p_dev; | |
473 | int ret = 0; | |
e7a480d2 | 474 | |
dc109497 | 475 | s = pcmcia_get_socket(s); |
e7a480d2 DB |
476 | if (!s) |
477 | return -EINVAL; | |
478 | ||
d50dbec3 | 479 | pr_debug("bind_request(%d, '%s')\n", s->sock, |
e7a480d2 DB |
480 | (char *)bind_info->dev_info); |
481 | ||
482 | p_drv = get_pcmcia_driver(&bind_info->dev_info); | |
483 | if (!p_drv) { | |
484 | ret = -EINVAL; | |
485 | goto err_put; | |
486 | } | |
487 | ||
488 | if (!try_module_get(p_drv->owner)) { | |
489 | ret = -EINVAL; | |
490 | goto err_put_driver; | |
491 | } | |
492 | ||
00ce99ff | 493 | mutex_lock(&s->ops_mutex); |
9fea84f4 | 494 | list_for_each_entry(p_dev, &s->devices_list, socket_device_list) { |
e7a480d2 DB |
495 | if (p_dev->func == bind_info->function) { |
496 | if ((p_dev->dev.driver == &p_drv->drv)) { | |
497 | if (p_dev->cardmgr) { | |
498 | /* if there's already a device | |
499 | * registered, and it was registered | |
500 | * by userspace before, we need to | |
501 | * return the "instance". */ | |
00ce99ff | 502 | mutex_unlock(&s->ops_mutex); |
fd238232 | 503 | bind_info->instance = p_dev; |
e7a480d2 DB |
504 | ret = -EBUSY; |
505 | goto err_put_module; | |
506 | } else { | |
507 | /* the correct driver managed to bind | |
508 | * itself magically to the correct | |
509 | * device. */ | |
00ce99ff | 510 | mutex_unlock(&s->ops_mutex); |
e7a480d2 DB |
511 | p_dev->cardmgr = p_drv; |
512 | ret = 0; | |
513 | goto err_put_module; | |
514 | } | |
515 | } else if (!p_dev->dev.driver) { | |
516 | /* there's already a device available where | |
517 | * no device has been bound to yet. So we don't | |
518 | * need to register a device! */ | |
00ce99ff | 519 | mutex_unlock(&s->ops_mutex); |
e7a480d2 DB |
520 | goto rescan; |
521 | } | |
522 | } | |
523 | } | |
00ce99ff | 524 | mutex_unlock(&s->ops_mutex); |
e7a480d2 DB |
525 | |
526 | p_dev = pcmcia_device_add(s, bind_info->function); | |
527 | if (!p_dev) { | |
528 | ret = -EIO; | |
529 | goto err_put_module; | |
530 | } | |
531 | ||
532 | rescan: | |
533 | p_dev->cardmgr = p_drv; | |
534 | ||
535 | /* if a driver is already running, we can abort */ | |
536 | if (p_dev->dev.driver) | |
537 | goto err_put_module; | |
538 | ||
539 | /* | |
540 | * Prevent this racing with a card insertion. | |
541 | */ | |
7fe908dd | 542 | mutex_lock(&s->skt_mutex); |
4deb7c1e | 543 | ret = bus_rescan_devices(&pcmcia_bus_type); |
7fe908dd | 544 | mutex_unlock(&s->skt_mutex); |
4deb7c1e JG |
545 | if (ret) |
546 | goto err_put_module; | |
e7a480d2 DB |
547 | |
548 | /* check whether the driver indeed matched. I don't care if this | |
549 | * is racy or not, because it can only happen on cardmgr access | |
550 | * paths... | |
551 | */ | |
552 | if (!(p_dev->dev.driver == &p_drv->drv)) | |
553 | p_dev->cardmgr = NULL; | |
554 | ||
555 | err_put_module: | |
556 | module_put(p_drv->owner); | |
557 | err_put_driver: | |
558 | put_driver(&p_drv->drv); | |
559 | err_put: | |
dc109497 | 560 | pcmcia_put_socket(s); |
e7a480d2 | 561 | |
9fea84f4 | 562 | return ret; |
e7a480d2 DB |
563 | } /* bind_request */ |
564 | ||
33519ddd DB |
565 | #ifdef CONFIG_CARDBUS |
566 | ||
567 | static struct pci_bus *pcmcia_lookup_bus(struct pcmcia_socket *s) | |
568 | { | |
569 | if (!s || !(s->state & SOCKET_CARDBUS)) | |
570 | return NULL; | |
e7a480d2 | 571 | |
33519ddd DB |
572 | return s->cb_dev->subordinate; |
573 | } | |
574 | #endif | |
e7a480d2 | 575 | |
dc109497 | 576 | static int get_device_info(struct pcmcia_socket *s, bind_info_t *bind_info, int first) |
e7a480d2 | 577 | { |
e7a480d2 | 578 | struct pcmcia_device *p_dev; |
e2d40963 | 579 | struct pcmcia_driver *p_drv; |
e7a480d2 DB |
580 | int ret = 0; |
581 | ||
582 | #ifdef CONFIG_CARDBUS | |
583 | /* | |
584 | * Some unbelievably ugly code to associate the PCI cardbus | |
585 | * device and its driver with the PCMCIA "bind" information. | |
586 | */ | |
587 | { | |
588 | struct pci_bus *bus; | |
589 | ||
dc109497 | 590 | bus = pcmcia_lookup_bus(s); |
e7a480d2 DB |
591 | if (bus) { |
592 | struct list_head *list; | |
593 | struct pci_dev *dev = NULL; | |
594 | ||
595 | list = bus->devices.next; | |
596 | while (list != &bus->devices) { | |
597 | struct pci_dev *pdev = pci_dev_b(list); | |
598 | list = list->next; | |
599 | ||
600 | if (first) { | |
601 | dev = pdev; | |
602 | break; | |
603 | } | |
604 | ||
605 | /* Try to handle "next" here some way? */ | |
606 | } | |
607 | if (dev && dev->driver) { | |
608 | strlcpy(bind_info->name, dev->driver->name, DEV_NAME_LEN); | |
609 | bind_info->major = 0; | |
610 | bind_info->minor = 0; | |
611 | bind_info->next = NULL; | |
612 | return 0; | |
613 | } | |
614 | } | |
615 | } | |
616 | #endif | |
617 | ||
00ce99ff | 618 | mutex_lock(&s->ops_mutex); |
e7a480d2 DB |
619 | list_for_each_entry(p_dev, &s->devices_list, socket_device_list) { |
620 | if (p_dev->func == bind_info->function) { | |
621 | p_dev = pcmcia_get_dev(p_dev); | |
622 | if (!p_dev) | |
623 | continue; | |
624 | goto found; | |
625 | } | |
626 | } | |
00ce99ff | 627 | mutex_unlock(&s->ops_mutex); |
e7a480d2 DB |
628 | return -ENODEV; |
629 | ||
630 | found: | |
00ce99ff | 631 | mutex_unlock(&s->ops_mutex); |
e7a480d2 | 632 | |
e2d40963 DB |
633 | p_drv = to_pcmcia_drv(p_dev->dev.driver); |
634 | if (p_drv && !p_dev->_locked) { | |
e7a480d2 DB |
635 | ret = -EAGAIN; |
636 | goto err_put; | |
637 | } | |
638 | ||
b9300aa7 | 639 | if (!first) { |
e7a480d2 DB |
640 | ret = -ENODEV; |
641 | goto err_put; | |
642 | } | |
643 | ||
b9300aa7 DB |
644 | strlcpy(bind_info->name, dev_name(&p_dev->dev), DEV_NAME_LEN); |
645 | bind_info->next = NULL; | |
e7a480d2 DB |
646 | |
647 | err_put: | |
648 | pcmcia_put_dev(p_dev); | |
9fea84f4 | 649 | return ret; |
e7a480d2 DB |
650 | } /* get_device_info */ |
651 | ||
652 | ||
653 | static int ds_open(struct inode *inode, struct file *file) | |
654 | { | |
655 | socket_t i = iminor(inode); | |
dc109497 | 656 | struct pcmcia_socket *s; |
e7a480d2 | 657 | user_info_t *user; |
9fea84f4 | 658 | static int warning_printed; |
0bec0bba | 659 | int ret = 0; |
e7a480d2 | 660 | |
d50dbec3 | 661 | pr_debug("ds_open(socket %d)\n", i); |
e7a480d2 | 662 | |
0bec0bba | 663 | lock_kernel(); |
dc109497 | 664 | s = pcmcia_get_socket_by_nr(i); |
0bec0bba JC |
665 | if (!s) { |
666 | ret = -ENODEV; | |
667 | goto out; | |
668 | } | |
dc109497 | 669 | s = pcmcia_get_socket(s); |
0bec0bba JC |
670 | if (!s) { |
671 | ret = -ENODEV; | |
672 | goto out; | |
673 | } | |
e7a480d2 DB |
674 | |
675 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { | |
b5e43913 | 676 | if (s->pcmcia_state.busy) { |
dc109497 | 677 | pcmcia_put_socket(s); |
0bec0bba JC |
678 | ret = -EBUSY; |
679 | goto out; | |
e7a480d2 DB |
680 | } |
681 | else | |
b5e43913 | 682 | s->pcmcia_state.busy = 1; |
e7a480d2 DB |
683 | } |
684 | ||
685 | user = kmalloc(sizeof(user_info_t), GFP_KERNEL); | |
686 | if (!user) { | |
dc109497 | 687 | pcmcia_put_socket(s); |
0bec0bba JC |
688 | ret = -ENOMEM; |
689 | goto out; | |
e7a480d2 DB |
690 | } |
691 | user->event_tail = user->event_head = 0; | |
692 | user->next = s->user; | |
693 | user->user_magic = USER_MAGIC; | |
694 | user->socket = s; | |
695 | s->user = user; | |
696 | file->private_data = user; | |
697 | ||
c352ec8a DB |
698 | if (!warning_printed) { |
699 | printk(KERN_INFO "pcmcia: Detected deprecated PCMCIA ioctl " | |
73d58588 | 700 | "usage from process: %s.\n", current->comm); |
c352ec8a DB |
701 | printk(KERN_INFO "pcmcia: This interface will soon be removed from " |
702 | "the kernel; please expect breakage unless you upgrade " | |
703 | "to new tools.\n"); | |
704 | printk(KERN_INFO "pcmcia: see http://www.kernel.org/pub/linux/" | |
705 | "utils/kernel/pcmcia/pcmcia.html for details.\n"); | |
706 | warning_printed = 1; | |
707 | } | |
708 | ||
15d0a873 | 709 | if (atomic_read(&s->present)) |
e7a480d2 | 710 | queue_event(user, CS_EVENT_CARD_INSERTION); |
0bec0bba JC |
711 | out: |
712 | unlock_kernel(); | |
713 | return ret; | |
e7a480d2 DB |
714 | } /* ds_open */ |
715 | ||
716 | /*====================================================================*/ | |
717 | ||
718 | static int ds_release(struct inode *inode, struct file *file) | |
719 | { | |
dc109497 | 720 | struct pcmcia_socket *s; |
e7a480d2 DB |
721 | user_info_t *user, **link; |
722 | ||
d50dbec3 | 723 | pr_debug("ds_release(socket %d)\n", iminor(inode)); |
e7a480d2 DB |
724 | |
725 | user = file->private_data; | |
726 | if (CHECK_USER(user)) | |
727 | goto out; | |
728 | ||
729 | s = user->socket; | |
730 | ||
731 | /* Unlink user data structure */ | |
9fea84f4 | 732 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) |
b5e43913 | 733 | s->pcmcia_state.busy = 0; |
9fea84f4 | 734 | |
e7a480d2 DB |
735 | file->private_data = NULL; |
736 | for (link = &s->user; *link; link = &(*link)->next) | |
9fea84f4 DB |
737 | if (*link == user) |
738 | break; | |
e7a480d2 DB |
739 | if (link == NULL) |
740 | goto out; | |
741 | *link = user->next; | |
742 | user->user_magic = 0; | |
743 | kfree(user); | |
dc109497 | 744 | pcmcia_put_socket(s); |
e7a480d2 DB |
745 | out: |
746 | return 0; | |
747 | } /* ds_release */ | |
748 | ||
749 | /*====================================================================*/ | |
750 | ||
751 | static ssize_t ds_read(struct file *file, char __user *buf, | |
752 | size_t count, loff_t *ppos) | |
753 | { | |
dc109497 | 754 | struct pcmcia_socket *s; |
e7a480d2 DB |
755 | user_info_t *user; |
756 | int ret; | |
757 | ||
d50dbec3 | 758 | pr_debug("ds_read(socket %d)\n", iminor(file->f_path.dentry->d_inode)); |
e7a480d2 DB |
759 | |
760 | if (count < 4) | |
761 | return -EINVAL; | |
762 | ||
763 | user = file->private_data; | |
764 | if (CHECK_USER(user)) | |
765 | return -EIO; | |
766 | ||
767 | s = user->socket; | |
e7a480d2 DB |
768 | ret = wait_event_interruptible(s->queue, !queue_empty(user)); |
769 | if (ret == 0) | |
770 | ret = put_user(get_queued_event(user), (int __user *)buf) ? -EFAULT : 4; | |
771 | ||
772 | return ret; | |
773 | } /* ds_read */ | |
774 | ||
775 | /*====================================================================*/ | |
776 | ||
777 | static ssize_t ds_write(struct file *file, const char __user *buf, | |
778 | size_t count, loff_t *ppos) | |
779 | { | |
d50dbec3 | 780 | pr_debug("ds_write(socket %d)\n", iminor(file->f_path.dentry->d_inode)); |
e7a480d2 DB |
781 | |
782 | if (count != 4) | |
783 | return -EINVAL; | |
784 | if ((file->f_flags & O_ACCMODE) == O_RDONLY) | |
785 | return -EBADF; | |
786 | ||
787 | return -EIO; | |
788 | } /* ds_write */ | |
789 | ||
790 | /*====================================================================*/ | |
791 | ||
792 | /* No kernel lock - fine */ | |
793 | static u_int ds_poll(struct file *file, poll_table *wait) | |
794 | { | |
dc109497 | 795 | struct pcmcia_socket *s; |
e7a480d2 DB |
796 | user_info_t *user; |
797 | ||
d50dbec3 | 798 | pr_debug("ds_poll(socket %d)\n", iminor(file->f_path.dentry->d_inode)); |
e7a480d2 DB |
799 | |
800 | user = file->private_data; | |
801 | if (CHECK_USER(user)) | |
802 | return POLLERR; | |
803 | s = user->socket; | |
804 | /* | |
805 | * We don't check for a dead socket here since that | |
806 | * will send cardmgr into an endless spin. | |
807 | */ | |
808 | poll_wait(file, &s->queue, wait); | |
809 | if (!queue_empty(user)) | |
810 | return POLLIN | POLLRDNORM; | |
811 | return 0; | |
812 | } /* ds_poll */ | |
813 | ||
814 | /*====================================================================*/ | |
815 | ||
55929332 | 816 | static int ds_ioctl(struct file *file, u_int cmd, u_long arg) |
e7a480d2 | 817 | { |
dc109497 | 818 | struct pcmcia_socket *s; |
e7a480d2 DB |
819 | void __user *uarg = (char __user *)arg; |
820 | u_int size; | |
821 | int ret, err; | |
822 | ds_ioctl_arg_t *buf; | |
823 | user_info_t *user; | |
824 | ||
d50dbec3 | 825 | pr_debug("ds_ioctl(socket %d, %#x, %#lx)\n", iminor(inode), cmd, arg); |
e7a480d2 DB |
826 | |
827 | user = file->private_data; | |
828 | if (CHECK_USER(user)) | |
829 | return -EIO; | |
830 | ||
831 | s = user->socket; | |
e7a480d2 DB |
832 | |
833 | size = (cmd & IOCSIZE_MASK) >> IOCSIZE_SHIFT; | |
9fea84f4 DB |
834 | if (size > sizeof(ds_ioctl_arg_t)) |
835 | return -EINVAL; | |
e7a480d2 DB |
836 | |
837 | /* Permission check */ | |
838 | if (!(cmd & IOC_OUT) && !capable(CAP_SYS_ADMIN)) | |
839 | return -EPERM; | |
840 | ||
841 | if (cmd & IOC_IN) { | |
842 | if (!access_ok(VERIFY_READ, uarg, size)) { | |
d50dbec3 | 843 | pr_debug("ds_ioctl(): verify_read = %d\n", -EFAULT); |
e7a480d2 DB |
844 | return -EFAULT; |
845 | } | |
846 | } | |
847 | if (cmd & IOC_OUT) { | |
848 | if (!access_ok(VERIFY_WRITE, uarg, size)) { | |
d50dbec3 | 849 | pr_debug("ds_ioctl(): verify_write = %d\n", -EFAULT); |
e7a480d2 DB |
850 | return -EFAULT; |
851 | } | |
852 | } | |
853 | buf = kmalloc(sizeof(ds_ioctl_arg_t), GFP_KERNEL); | |
854 | if (!buf) | |
855 | return -ENOMEM; | |
856 | ||
857 | err = ret = 0; | |
858 | ||
9374074f DB |
859 | if (cmd & IOC_IN) { |
860 | if (__copy_from_user((char *)buf, uarg, size)) { | |
861 | err = -EFAULT; | |
862 | goto free_out; | |
863 | } | |
864 | } | |
e7a480d2 DB |
865 | |
866 | switch (cmd) { | |
867 | case DS_ADJUST_RESOURCE_INFO: | |
868 | ret = pcmcia_adjust_resource_info(&buf->adjust); | |
869 | break; | |
e7a480d2 DB |
870 | case DS_GET_CONFIGURATION_INFO: |
871 | if (buf->config.Function && | |
dc109497 | 872 | (buf->config.Function >= s->functions)) |
926c5402 | 873 | ret = -EINVAL; |
855cdf13 DB |
874 | else { |
875 | struct pcmcia_device *p_dev = get_pcmcia_device(s, buf->config.Function); | |
f47ad214 DR |
876 | ret = pccard_get_configuration_info(s, p_dev, &buf->config); |
877 | pcmcia_put_dev(p_dev); | |
855cdf13 | 878 | } |
e7a480d2 DB |
879 | break; |
880 | case DS_GET_FIRST_TUPLE: | |
7fe908dd | 881 | mutex_lock(&s->skt_mutex); |
dc109497 | 882 | pcmcia_validate_mem(s); |
7fe908dd | 883 | mutex_unlock(&s->skt_mutex); |
dc109497 | 884 | ret = pccard_get_first_tuple(s, BIND_FN_ALL, &buf->tuple); |
e7a480d2 DB |
885 | break; |
886 | case DS_GET_NEXT_TUPLE: | |
dc109497 | 887 | ret = pccard_get_next_tuple(s, BIND_FN_ALL, &buf->tuple); |
e7a480d2 DB |
888 | break; |
889 | case DS_GET_TUPLE_DATA: | |
890 | buf->tuple.TupleData = buf->tuple_parse.data; | |
891 | buf->tuple.TupleDataMax = sizeof(buf->tuple_parse.data); | |
dc109497 | 892 | ret = pccard_get_tuple_data(s, &buf->tuple); |
e7a480d2 DB |
893 | break; |
894 | case DS_PARSE_TUPLE: | |
895 | buf->tuple.TupleData = buf->tuple_parse.data; | |
2f3061eb | 896 | ret = pcmcia_parse_tuple(&buf->tuple, &buf->tuple_parse.parse); |
e7a480d2 DB |
897 | break; |
898 | case DS_RESET_CARD: | |
994917f8 | 899 | ret = pcmcia_reset_card(s); |
e7a480d2 DB |
900 | break; |
901 | case DS_GET_STATUS: | |
855cdf13 DB |
902 | if (buf->status.Function && |
903 | (buf->status.Function >= s->functions)) | |
926c5402 | 904 | ret = -EINVAL; |
855cdf13 DB |
905 | else { |
906 | struct pcmcia_device *p_dev = get_pcmcia_device(s, buf->status.Function); | |
f47ad214 DR |
907 | ret = pccard_get_status(s, p_dev, &buf->status); |
908 | pcmcia_put_dev(p_dev); | |
855cdf13 DB |
909 | } |
910 | break; | |
e7a480d2 | 911 | case DS_VALIDATE_CIS: |
7fe908dd | 912 | mutex_lock(&s->skt_mutex); |
dc109497 | 913 | pcmcia_validate_mem(s); |
7fe908dd | 914 | mutex_unlock(&s->skt_mutex); |
84897fc0 | 915 | ret = pccard_validate_cis(s, &buf->cisinfo.Chains); |
e7a480d2 DB |
916 | break; |
917 | case DS_SUSPEND_CARD: | |
f971dbd5 | 918 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_SUSPEND); |
e7a480d2 DB |
919 | break; |
920 | case DS_RESUME_CARD: | |
f971dbd5 | 921 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_RESUME); |
e7a480d2 DB |
922 | break; |
923 | case DS_EJECT_CARD: | |
f971dbd5 | 924 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_EJECT); |
e7a480d2 DB |
925 | break; |
926 | case DS_INSERT_CARD: | |
f971dbd5 | 927 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_INSERT); |
e7a480d2 DB |
928 | break; |
929 | case DS_ACCESS_CONFIGURATION_REGISTER: | |
930 | if ((buf->conf_reg.Action == CS_WRITE) && !capable(CAP_SYS_ADMIN)) { | |
931 | err = -EPERM; | |
932 | goto free_out; | |
933 | } | |
855cdf13 | 934 | |
926c5402 | 935 | ret = -EINVAL; |
855cdf13 DB |
936 | |
937 | if (!(buf->conf_reg.Function && | |
938 | (buf->conf_reg.Function >= s->functions))) { | |
939 | struct pcmcia_device *p_dev = get_pcmcia_device(s, buf->conf_reg.Function); | |
73d58588 | 940 | if (p_dev) { |
855cdf13 | 941 | ret = pcmcia_access_configuration_register(p_dev, &buf->conf_reg); |
73d58588 BH |
942 | pcmcia_put_dev(p_dev); |
943 | } | |
855cdf13 | 944 | } |
e7a480d2 DB |
945 | break; |
946 | case DS_GET_FIRST_REGION: | |
947 | case DS_GET_NEXT_REGION: | |
948 | case DS_BIND_MTD: | |
949 | if (!capable(CAP_SYS_ADMIN)) { | |
950 | err = -EPERM; | |
951 | goto free_out; | |
952 | } else { | |
a9c56953 MK |
953 | printk_once(KERN_WARNING |
954 | "2.6. kernels use pcmciamtd instead of memory_cs.c and do not require special\n"); | |
955 | printk_once(KERN_WARNING "MTD handling any more.\n"); | |
e7a480d2 DB |
956 | } |
957 | err = -EINVAL; | |
958 | goto free_out; | |
959 | break; | |
960 | case DS_GET_FIRST_WINDOW: | |
0bdf9b3d | 961 | ret = pcmcia_get_window(s, &buf->win_info.handle, 1, |
e7a480d2 DB |
962 | &buf->win_info.window); |
963 | break; | |
964 | case DS_GET_NEXT_WINDOW: | |
dc109497 | 965 | ret = pcmcia_get_window(s, &buf->win_info.handle, |
0bdf9b3d | 966 | buf->win_info.handle + 1, &buf->win_info.window); |
e7a480d2 DB |
967 | break; |
968 | case DS_GET_MEM_PAGE: | |
16456eba | 969 | ret = pcmcia_get_mem_page(s, buf->win_info.handle, |
e7a480d2 DB |
970 | &buf->win_info.map); |
971 | break; | |
972 | case DS_REPLACE_CIS: | |
53efec95 | 973 | ret = pcmcia_replace_cis(s, buf->cisdump.Data, buf->cisdump.Length); |
e7a480d2 DB |
974 | break; |
975 | case DS_BIND_REQUEST: | |
976 | if (!capable(CAP_SYS_ADMIN)) { | |
977 | err = -EPERM; | |
978 | goto free_out; | |
979 | } | |
980 | err = bind_request(s, &buf->bind_info); | |
981 | break; | |
982 | case DS_GET_DEVICE_INFO: | |
983 | err = get_device_info(s, &buf->bind_info, 1); | |
984 | break; | |
985 | case DS_GET_NEXT_DEVICE: | |
986 | err = get_device_info(s, &buf->bind_info, 0); | |
987 | break; | |
988 | case DS_UNBIND_REQUEST: | |
989 | err = 0; | |
990 | break; | |
991 | default: | |
992 | err = -EINVAL; | |
993 | } | |
994 | ||
4c89e88b | 995 | if ((err == 0) && (ret != 0)) { |
d50dbec3 | 996 | pr_debug("ds_ioctl: ret = %d\n", ret); |
e7a480d2 | 997 | switch (ret) { |
610e2374 DB |
998 | case -ENODEV: |
999 | case -EINVAL: | |
1000 | case -EBUSY: | |
1001 | case -ENOSYS: | |
1002 | err = ret; | |
1003 | break; | |
610e2374 | 1004 | case -ENOMEM: |
e7a480d2 | 1005 | err = -ENOSPC; break; |
635d19be | 1006 | case -ENOSPC: |
e7a480d2 | 1007 | err = -ENODATA; break; |
e7a480d2 DB |
1008 | default: |
1009 | err = -EIO; break; | |
1010 | } | |
1011 | } | |
1012 | ||
1013 | if (cmd & IOC_OUT) { | |
9fea84f4 DB |
1014 | if (__copy_to_user(uarg, (char *)buf, size)) |
1015 | err = -EFAULT; | |
e7a480d2 DB |
1016 | } |
1017 | ||
1018 | free_out: | |
1019 | kfree(buf); | |
1020 | return err; | |
1021 | } /* ds_ioctl */ | |
1022 | ||
55929332 AB |
1023 | static long ds_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
1024 | { | |
1025 | int ret; | |
1026 | ||
1027 | lock_kernel(); | |
1028 | ret = ds_ioctl(file, cmd, arg); | |
1029 | unlock_kernel(); | |
1030 | ||
1031 | return ret; | |
1032 | } | |
1033 | ||
1034 | ||
e7a480d2 DB |
1035 | /*====================================================================*/ |
1036 | ||
d54b1fdb | 1037 | static const struct file_operations ds_fops = { |
e7a480d2 DB |
1038 | .owner = THIS_MODULE, |
1039 | .open = ds_open, | |
1040 | .release = ds_release, | |
55929332 | 1041 | .unlocked_ioctl = ds_unlocked_ioctl, |
e7a480d2 DB |
1042 | .read = ds_read, |
1043 | .write = ds_write, | |
1044 | .poll = ds_poll, | |
1045 | }; | |
1046 | ||
9fea84f4 DB |
1047 | void __init pcmcia_setup_ioctl(void) |
1048 | { | |
e7a480d2 DB |
1049 | int i; |
1050 | ||
1051 | /* Set up character device for user mode clients */ | |
1052 | i = register_chrdev(0, "pcmcia", &ds_fops); | |
1a8ceafc | 1053 | if (i < 0) |
e7a480d2 | 1054 | printk(KERN_NOTICE "unable to find a free device # for " |
1a8ceafc | 1055 | "Driver Services (error=%d)\n", i); |
e7a480d2 DB |
1056 | else |
1057 | major_dev = i; | |
1058 | ||
1059 | #ifdef CONFIG_PROC_FS | |
97094dcf | 1060 | proc_pccard = proc_mkdir("bus/pccard", NULL); |
e7a480d2 | 1061 | if (proc_pccard) |
e6be4a8c | 1062 | proc_create("drivers", 0, proc_pccard, &pccard_drivers_proc_fops); |
e7a480d2 DB |
1063 | #endif |
1064 | } | |
1065 | ||
1066 | ||
9fea84f4 DB |
1067 | void __exit pcmcia_cleanup_ioctl(void) |
1068 | { | |
e7a480d2 DB |
1069 | #ifdef CONFIG_PROC_FS |
1070 | if (proc_pccard) { | |
1071 | remove_proc_entry("drivers", proc_pccard); | |
97094dcf | 1072 | remove_proc_entry("bus/pccard", NULL); |
e7a480d2 DB |
1073 | } |
1074 | #endif | |
1075 | if (major_dev != -1) | |
1076 | unregister_chrdev(major_dev, "pcmcia"); | |
1077 | } |