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