Commit | Line | Data |
---|---|---|
77c44ab1 HW |
1 | /* |
2 | * A driver for the Omnikey PCMCIA smartcard reader CardMan 4040 | |
3 | * | |
4 | * (c) 2000-2004 Omnikey AG (http://www.omnikey.com/) | |
5 | * | |
67bc6200 | 6 | * (C) 2005-2006 Harald Welte <laforge@gnumonks.org> |
77c44ab1 HW |
7 | * - add support for poll() |
8 | * - driver cleanup | |
9 | * - add waitqueues | |
10 | * - adhere to linux kernel coding style and policies | |
11 | * - support 2.6.13 "new style" pcmcia interface | |
67bc6200 | 12 | * - add class interface for udev device creation |
77c44ab1 HW |
13 | * |
14 | * The device basically is a USB CCID compliant device that has been | |
15 | * attached to an I/O-Mapped FIFO. | |
16 | * | |
17 | * All rights reserved, Dual BSD/GPL Licensed. | |
18 | */ | |
19 | ||
20 | /* #define PCMCIA_DEBUG 6 */ | |
21 | ||
22 | #include <linux/kernel.h> | |
23 | #include <linux/module.h> | |
24 | #include <linux/slab.h> | |
25 | #include <linux/init.h> | |
26 | #include <linux/fs.h> | |
27 | #include <linux/delay.h> | |
28 | #include <linux/poll.h> | |
8b5332f6 | 29 | #include <linux/smp_lock.h> |
77c44ab1 HW |
30 | #include <linux/wait.h> |
31 | #include <asm/uaccess.h> | |
32 | #include <asm/io.h> | |
33 | ||
34 | #include <pcmcia/cs_types.h> | |
35 | #include <pcmcia/cs.h> | |
36 | #include <pcmcia/cistpl.h> | |
37 | #include <pcmcia/cisreg.h> | |
38 | #include <pcmcia/ciscode.h> | |
39 | #include <pcmcia/ds.h> | |
40 | ||
41 | #include "cm4040_cs.h" | |
42 | ||
43 | ||
44 | #ifdef PCMCIA_DEBUG | |
ddd73611 | 45 | #define reader_to_dev(x) (&handle_to_dev(x->p_dev)) |
77c44ab1 HW |
46 | static int pc_debug = PCMCIA_DEBUG; |
47 | module_param(pc_debug, int, 0600); | |
48 | #define DEBUGP(n, rdr, x, args...) do { \ | |
49 | if (pc_debug >= (n)) \ | |
50 | dev_printk(KERN_DEBUG, reader_to_dev(rdr), "%s:" x, \ | |
bf9d8929 | 51 | __func__ , ##args); \ |
77c44ab1 HW |
52 | } while (0) |
53 | #else | |
54 | #define DEBUGP(n, rdr, x, args...) | |
55 | #endif | |
56 | ||
57 | static char *version = | |
67bc6200 | 58 | "OMNIKEY CardMan 4040 v1.1.0gm5 - All bugs added by Harald Welte"; |
77c44ab1 HW |
59 | |
60 | #define CCID_DRIVER_BULK_DEFAULT_TIMEOUT (150*HZ) | |
61 | #define CCID_DRIVER_ASYNC_POWERUP_TIMEOUT (35*HZ) | |
62 | #define CCID_DRIVER_MINIMUM_TIMEOUT (3*HZ) | |
63 | #define READ_WRITE_BUFFER_SIZE 512 | |
64 | #define POLL_LOOP_COUNT 1000 | |
65 | ||
66 | /* how often to poll for fifo status change */ | |
67 | #define POLL_PERIOD msecs_to_jiffies(10) | |
68 | ||
fba395ee | 69 | static void reader_release(struct pcmcia_device *link); |
77c44ab1 HW |
70 | |
71 | static int major; | |
67bc6200 | 72 | static struct class *cmx_class; |
77c44ab1 HW |
73 | |
74 | #define BS_READABLE 0x01 | |
75 | #define BS_WRITABLE 0x02 | |
76 | ||
77 | struct reader_dev { | |
fd238232 | 78 | struct pcmcia_device *p_dev; |
77c44ab1 HW |
79 | dev_node_t node; |
80 | wait_queue_head_t devq; | |
81 | wait_queue_head_t poll_wait; | |
82 | wait_queue_head_t read_wait; | |
83 | wait_queue_head_t write_wait; | |
84 | unsigned long buffer_status; | |
85 | unsigned long timeout; | |
86 | unsigned char s_buf[READ_WRITE_BUFFER_SIZE]; | |
87 | unsigned char r_buf[READ_WRITE_BUFFER_SIZE]; | |
88 | struct timer_list poll_timer; | |
89 | }; | |
90 | ||
fba395ee | 91 | static struct pcmcia_device *dev_table[CM_MAX_DEV]; |
77c44ab1 HW |
92 | |
93 | #ifndef PCMCIA_DEBUG | |
94 | #define xoutb outb | |
95 | #define xinb inb | |
96 | #else | |
97 | static inline void xoutb(unsigned char val, unsigned short port) | |
98 | { | |
99 | if (pc_debug >= 7) | |
100 | printk(KERN_DEBUG "outb(val=%.2x,port=%.4x)\n", val, port); | |
101 | outb(val, port); | |
102 | } | |
103 | ||
104 | static inline unsigned char xinb(unsigned short port) | |
105 | { | |
106 | unsigned char val; | |
107 | ||
108 | val = inb(port); | |
109 | if (pc_debug >= 7) | |
110 | printk(KERN_DEBUG "%.2x=inb(%.4x)\n", val, port); | |
111 | return val; | |
112 | } | |
113 | #endif | |
114 | ||
115 | /* poll the device fifo status register. not to be confused with | |
116 | * the poll syscall. */ | |
117 | static void cm4040_do_poll(unsigned long dummy) | |
118 | { | |
119 | struct reader_dev *dev = (struct reader_dev *) dummy; | |
fd238232 | 120 | unsigned int obs = xinb(dev->p_dev->io.BasePort1 |
77c44ab1 HW |
121 | + REG_OFFSET_BUFFER_STATUS); |
122 | ||
123 | if ((obs & BSR_BULK_IN_FULL)) { | |
124 | set_bit(BS_READABLE, &dev->buffer_status); | |
125 | DEBUGP(4, dev, "waking up read_wait\n"); | |
126 | wake_up_interruptible(&dev->read_wait); | |
127 | } else | |
128 | clear_bit(BS_READABLE, &dev->buffer_status); | |
129 | ||
130 | if (!(obs & BSR_BULK_OUT_FULL)) { | |
131 | set_bit(BS_WRITABLE, &dev->buffer_status); | |
132 | DEBUGP(4, dev, "waking up write_wait\n"); | |
133 | wake_up_interruptible(&dev->write_wait); | |
134 | } else | |
135 | clear_bit(BS_WRITABLE, &dev->buffer_status); | |
136 | ||
137 | if (dev->buffer_status) | |
138 | wake_up_interruptible(&dev->poll_wait); | |
139 | ||
140 | mod_timer(&dev->poll_timer, jiffies + POLL_PERIOD); | |
141 | } | |
142 | ||
143 | static void cm4040_stop_poll(struct reader_dev *dev) | |
144 | { | |
145 | del_timer_sync(&dev->poll_timer); | |
146 | } | |
147 | ||
148 | static int wait_for_bulk_out_ready(struct reader_dev *dev) | |
149 | { | |
150 | int i, rc; | |
fd238232 | 151 | int iobase = dev->p_dev->io.BasePort1; |
77c44ab1 HW |
152 | |
153 | for (i = 0; i < POLL_LOOP_COUNT; i++) { | |
154 | if ((xinb(iobase + REG_OFFSET_BUFFER_STATUS) | |
155 | & BSR_BULK_OUT_FULL) == 0) { | |
156 | DEBUGP(4, dev, "BulkOut empty (i=%d)\n", i); | |
157 | return 1; | |
158 | } | |
159 | } | |
160 | ||
161 | DEBUGP(4, dev, "wait_event_interruptible_timeout(timeout=%ld\n", | |
162 | dev->timeout); | |
163 | rc = wait_event_interruptible_timeout(dev->write_wait, | |
164 | test_and_clear_bit(BS_WRITABLE, | |
165 | &dev->buffer_status), | |
166 | dev->timeout); | |
167 | ||
168 | if (rc > 0) | |
169 | DEBUGP(4, dev, "woke up: BulkOut empty\n"); | |
170 | else if (rc == 0) | |
171 | DEBUGP(4, dev, "woke up: BulkOut full, returning 0 :(\n"); | |
172 | else if (rc < 0) | |
173 | DEBUGP(4, dev, "woke up: signal arrived\n"); | |
174 | ||
175 | return rc; | |
176 | } | |
177 | ||
178 | /* Write to Sync Control Register */ | |
179 | static int write_sync_reg(unsigned char val, struct reader_dev *dev) | |
180 | { | |
fd238232 | 181 | int iobase = dev->p_dev->io.BasePort1; |
77c44ab1 HW |
182 | int rc; |
183 | ||
184 | rc = wait_for_bulk_out_ready(dev); | |
185 | if (rc <= 0) | |
186 | return rc; | |
187 | ||
188 | xoutb(val, iobase + REG_OFFSET_SYNC_CONTROL); | |
189 | rc = wait_for_bulk_out_ready(dev); | |
190 | if (rc <= 0) | |
191 | return rc; | |
192 | ||
193 | return 1; | |
194 | } | |
195 | ||
196 | static int wait_for_bulk_in_ready(struct reader_dev *dev) | |
197 | { | |
198 | int i, rc; | |
fd238232 | 199 | int iobase = dev->p_dev->io.BasePort1; |
77c44ab1 HW |
200 | |
201 | for (i = 0; i < POLL_LOOP_COUNT; i++) { | |
202 | if ((xinb(iobase + REG_OFFSET_BUFFER_STATUS) | |
203 | & BSR_BULK_IN_FULL) == BSR_BULK_IN_FULL) { | |
204 | DEBUGP(3, dev, "BulkIn full (i=%d)\n", i); | |
205 | return 1; | |
206 | } | |
207 | } | |
208 | ||
209 | DEBUGP(4, dev, "wait_event_interruptible_timeout(timeout=%ld\n", | |
210 | dev->timeout); | |
211 | rc = wait_event_interruptible_timeout(dev->read_wait, | |
212 | test_and_clear_bit(BS_READABLE, | |
213 | &dev->buffer_status), | |
214 | dev->timeout); | |
215 | if (rc > 0) | |
216 | DEBUGP(4, dev, "woke up: BulkIn full\n"); | |
217 | else if (rc == 0) | |
218 | DEBUGP(4, dev, "woke up: BulkIn not full, returning 0 :(\n"); | |
219 | else if (rc < 0) | |
220 | DEBUGP(4, dev, "woke up: signal arrived\n"); | |
221 | ||
222 | return rc; | |
223 | } | |
224 | ||
225 | static ssize_t cm4040_read(struct file *filp, char __user *buf, | |
226 | size_t count, loff_t *ppos) | |
227 | { | |
228 | struct reader_dev *dev = filp->private_data; | |
fd238232 | 229 | int iobase = dev->p_dev->io.BasePort1; |
77c44ab1 HW |
230 | size_t bytes_to_read; |
231 | unsigned long i; | |
232 | size_t min_bytes_to_read; | |
233 | int rc; | |
234 | unsigned char uc; | |
235 | ||
236 | DEBUGP(2, dev, "-> cm4040_read(%s,%d)\n", current->comm, current->pid); | |
237 | ||
238 | if (count == 0) | |
239 | return 0; | |
240 | ||
241 | if (count < 10) | |
242 | return -EFAULT; | |
243 | ||
244 | if (filp->f_flags & O_NONBLOCK) { | |
245 | DEBUGP(4, dev, "filep->f_flags O_NONBLOCK set\n"); | |
246 | DEBUGP(2, dev, "<- cm4040_read (failure)\n"); | |
247 | return -EAGAIN; | |
248 | } | |
249 | ||
e2d40963 | 250 | if (!pcmcia_dev_present(dev->p_dev)) |
77c44ab1 HW |
251 | return -ENODEV; |
252 | ||
253 | for (i = 0; i < 5; i++) { | |
254 | rc = wait_for_bulk_in_ready(dev); | |
255 | if (rc <= 0) { | |
256 | DEBUGP(5, dev, "wait_for_bulk_in_ready rc=%.2x\n", rc); | |
257 | DEBUGP(2, dev, "<- cm4040_read (failed)\n"); | |
258 | if (rc == -ERESTARTSYS) | |
259 | return rc; | |
260 | return -EIO; | |
261 | } | |
262 | dev->r_buf[i] = xinb(iobase + REG_OFFSET_BULK_IN); | |
263 | #ifdef PCMCIA_DEBUG | |
264 | if (pc_debug >= 6) | |
265 | printk(KERN_DEBUG "%lu:%2x ", i, dev->r_buf[i]); | |
266 | } | |
267 | printk("\n"); | |
268 | #else | |
269 | } | |
270 | #endif | |
271 | ||
272 | bytes_to_read = 5 + le32_to_cpu(*(__le32 *)&dev->r_buf[1]); | |
273 | ||
274 | DEBUGP(6, dev, "BytesToRead=%lu\n", bytes_to_read); | |
275 | ||
276 | min_bytes_to_read = min(count, bytes_to_read + 5); | |
059819a4 | 277 | min_bytes_to_read = min_t(size_t, min_bytes_to_read, READ_WRITE_BUFFER_SIZE); |
77c44ab1 HW |
278 | |
279 | DEBUGP(6, dev, "Min=%lu\n", min_bytes_to_read); | |
280 | ||
281 | for (i = 0; i < (min_bytes_to_read-5); i++) { | |
282 | rc = wait_for_bulk_in_ready(dev); | |
283 | if (rc <= 0) { | |
284 | DEBUGP(5, dev, "wait_for_bulk_in_ready rc=%.2x\n", rc); | |
285 | DEBUGP(2, dev, "<- cm4040_read (failed)\n"); | |
286 | if (rc == -ERESTARTSYS) | |
287 | return rc; | |
288 | return -EIO; | |
289 | } | |
290 | dev->r_buf[i+5] = xinb(iobase + REG_OFFSET_BULK_IN); | |
291 | #ifdef PCMCIA_DEBUG | |
292 | if (pc_debug >= 6) | |
293 | printk(KERN_DEBUG "%lu:%2x ", i, dev->r_buf[i]); | |
294 | } | |
295 | printk("\n"); | |
296 | #else | |
297 | } | |
298 | #endif | |
299 | ||
300 | *ppos = min_bytes_to_read; | |
301 | if (copy_to_user(buf, dev->r_buf, min_bytes_to_read)) | |
302 | return -EFAULT; | |
303 | ||
304 | rc = wait_for_bulk_in_ready(dev); | |
305 | if (rc <= 0) { | |
306 | DEBUGP(5, dev, "wait_for_bulk_in_ready rc=%.2x\n", rc); | |
307 | DEBUGP(2, dev, "<- cm4040_read (failed)\n"); | |
308 | if (rc == -ERESTARTSYS) | |
309 | return rc; | |
310 | return -EIO; | |
311 | } | |
312 | ||
313 | rc = write_sync_reg(SCR_READER_TO_HOST_DONE, dev); | |
314 | if (rc <= 0) { | |
315 | DEBUGP(5, dev, "write_sync_reg c=%.2x\n", rc); | |
316 | DEBUGP(2, dev, "<- cm4040_read (failed)\n"); | |
317 | if (rc == -ERESTARTSYS) | |
318 | return rc; | |
319 | else | |
320 | return -EIO; | |
321 | } | |
322 | ||
323 | uc = xinb(iobase + REG_OFFSET_BULK_IN); | |
324 | ||
325 | DEBUGP(2, dev, "<- cm4040_read (successfully)\n"); | |
326 | return min_bytes_to_read; | |
327 | } | |
328 | ||
329 | static ssize_t cm4040_write(struct file *filp, const char __user *buf, | |
330 | size_t count, loff_t *ppos) | |
331 | { | |
332 | struct reader_dev *dev = filp->private_data; | |
fd238232 | 333 | int iobase = dev->p_dev->io.BasePort1; |
77c44ab1 HW |
334 | ssize_t rc; |
335 | int i; | |
336 | unsigned int bytes_to_write; | |
337 | ||
338 | DEBUGP(2, dev, "-> cm4040_write(%s,%d)\n", current->comm, current->pid); | |
339 | ||
340 | if (count == 0) { | |
341 | DEBUGP(2, dev, "<- cm4040_write empty read (successfully)\n"); | |
342 | return 0; | |
343 | } | |
344 | ||
059819a4 | 345 | if ((count < 5) || (count > READ_WRITE_BUFFER_SIZE)) { |
77c44ab1 HW |
346 | DEBUGP(2, dev, "<- cm4040_write buffersize=%Zd < 5\n", count); |
347 | return -EIO; | |
348 | } | |
349 | ||
350 | if (filp->f_flags & O_NONBLOCK) { | |
351 | DEBUGP(4, dev, "filep->f_flags O_NONBLOCK set\n"); | |
352 | DEBUGP(4, dev, "<- cm4040_write (failure)\n"); | |
353 | return -EAGAIN; | |
354 | } | |
355 | ||
e2d40963 | 356 | if (!pcmcia_dev_present(dev->p_dev)) |
77c44ab1 HW |
357 | return -ENODEV; |
358 | ||
359 | bytes_to_write = count; | |
360 | if (copy_from_user(dev->s_buf, buf, bytes_to_write)) | |
361 | return -EFAULT; | |
362 | ||
363 | switch (dev->s_buf[0]) { | |
364 | case CMD_PC_TO_RDR_XFRBLOCK: | |
365 | case CMD_PC_TO_RDR_SECURE: | |
366 | case CMD_PC_TO_RDR_TEST_SECURE: | |
367 | case CMD_PC_TO_RDR_OK_SECURE: | |
368 | dev->timeout = CCID_DRIVER_BULK_DEFAULT_TIMEOUT; | |
369 | break; | |
370 | ||
371 | case CMD_PC_TO_RDR_ICCPOWERON: | |
372 | dev->timeout = CCID_DRIVER_ASYNC_POWERUP_TIMEOUT; | |
373 | break; | |
374 | ||
375 | case CMD_PC_TO_RDR_GETSLOTSTATUS: | |
376 | case CMD_PC_TO_RDR_ICCPOWEROFF: | |
377 | case CMD_PC_TO_RDR_GETPARAMETERS: | |
378 | case CMD_PC_TO_RDR_RESETPARAMETERS: | |
379 | case CMD_PC_TO_RDR_SETPARAMETERS: | |
380 | case CMD_PC_TO_RDR_ESCAPE: | |
381 | case CMD_PC_TO_RDR_ICCCLOCK: | |
382 | default: | |
383 | dev->timeout = CCID_DRIVER_MINIMUM_TIMEOUT; | |
384 | break; | |
385 | } | |
386 | ||
387 | rc = write_sync_reg(SCR_HOST_TO_READER_START, dev); | |
388 | if (rc <= 0) { | |
389 | DEBUGP(5, dev, "write_sync_reg c=%.2Zx\n", rc); | |
390 | DEBUGP(2, dev, "<- cm4040_write (failed)\n"); | |
391 | if (rc == -ERESTARTSYS) | |
392 | return rc; | |
393 | else | |
394 | return -EIO; | |
395 | } | |
396 | ||
397 | DEBUGP(4, dev, "start \n"); | |
398 | ||
399 | for (i = 0; i < bytes_to_write; i++) { | |
400 | rc = wait_for_bulk_out_ready(dev); | |
401 | if (rc <= 0) { | |
402 | DEBUGP(5, dev, "wait_for_bulk_out_ready rc=%.2Zx\n", | |
403 | rc); | |
404 | DEBUGP(2, dev, "<- cm4040_write (failed)\n"); | |
405 | if (rc == -ERESTARTSYS) | |
406 | return rc; | |
407 | else | |
408 | return -EIO; | |
409 | } | |
410 | ||
411 | xoutb(dev->s_buf[i],iobase + REG_OFFSET_BULK_OUT); | |
412 | } | |
413 | DEBUGP(4, dev, "end\n"); | |
414 | ||
415 | rc = write_sync_reg(SCR_HOST_TO_READER_DONE, dev); | |
416 | ||
417 | if (rc <= 0) { | |
418 | DEBUGP(5, dev, "write_sync_reg c=%.2Zx\n", rc); | |
419 | DEBUGP(2, dev, "<- cm4040_write (failed)\n"); | |
420 | if (rc == -ERESTARTSYS) | |
421 | return rc; | |
422 | else | |
423 | return -EIO; | |
424 | } | |
425 | ||
426 | DEBUGP(2, dev, "<- cm4040_write (successfully)\n"); | |
427 | return count; | |
428 | } | |
429 | ||
430 | static unsigned int cm4040_poll(struct file *filp, poll_table *wait) | |
431 | { | |
432 | struct reader_dev *dev = filp->private_data; | |
433 | unsigned int mask = 0; | |
434 | ||
435 | poll_wait(filp, &dev->poll_wait, wait); | |
436 | ||
437 | if (test_and_clear_bit(BS_READABLE, &dev->buffer_status)) | |
438 | mask |= POLLIN | POLLRDNORM; | |
439 | if (test_and_clear_bit(BS_WRITABLE, &dev->buffer_status)) | |
440 | mask |= POLLOUT | POLLWRNORM; | |
441 | ||
442 | DEBUGP(2, dev, "<- cm4040_poll(%u)\n", mask); | |
443 | ||
444 | return mask; | |
445 | } | |
446 | ||
447 | static int cm4040_open(struct inode *inode, struct file *filp) | |
448 | { | |
449 | struct reader_dev *dev; | |
fba395ee | 450 | struct pcmcia_device *link; |
77c44ab1 | 451 | int minor = iminor(inode); |
8b5332f6 | 452 | int ret; |
77c44ab1 HW |
453 | |
454 | if (minor >= CM_MAX_DEV) | |
455 | return -ENODEV; | |
456 | ||
8b5332f6 | 457 | lock_kernel(); |
77c44ab1 | 458 | link = dev_table[minor]; |
8b5332f6 JC |
459 | if (link == NULL || !pcmcia_dev_present(link)) { |
460 | ret = -ENODEV; | |
461 | goto out; | |
462 | } | |
77c44ab1 | 463 | |
8b5332f6 JC |
464 | if (link->open) { |
465 | ret = -EBUSY; | |
466 | goto out; | |
467 | } | |
77c44ab1 HW |
468 | |
469 | dev = link->priv; | |
470 | filp->private_data = dev; | |
471 | ||
472 | if (filp->f_flags & O_NONBLOCK) { | |
473 | DEBUGP(4, dev, "filep->f_flags O_NONBLOCK set\n"); | |
8b5332f6 JC |
474 | ret = -EAGAIN; |
475 | goto out; | |
77c44ab1 HW |
476 | } |
477 | ||
478 | link->open = 1; | |
479 | ||
480 | dev->poll_timer.data = (unsigned long) dev; | |
481 | mod_timer(&dev->poll_timer, jiffies + POLL_PERIOD); | |
482 | ||
483 | DEBUGP(2, dev, "<- cm4040_open (successfully)\n"); | |
8b5332f6 JC |
484 | ret = nonseekable_open(inode, filp); |
485 | out: | |
486 | unlock_kernel(); | |
487 | return ret; | |
77c44ab1 HW |
488 | } |
489 | ||
490 | static int cm4040_close(struct inode *inode, struct file *filp) | |
491 | { | |
492 | struct reader_dev *dev = filp->private_data; | |
fba395ee | 493 | struct pcmcia_device *link; |
77c44ab1 HW |
494 | int minor = iminor(inode); |
495 | ||
496 | DEBUGP(2, dev, "-> cm4040_close(maj/min=%d.%d)\n", imajor(inode), | |
497 | iminor(inode)); | |
498 | ||
499 | if (minor >= CM_MAX_DEV) | |
500 | return -ENODEV; | |
501 | ||
502 | link = dev_table[minor]; | |
503 | if (link == NULL) | |
504 | return -ENODEV; | |
505 | ||
506 | cm4040_stop_poll(dev); | |
507 | ||
508 | link->open = 0; | |
509 | wake_up(&dev->devq); | |
510 | ||
511 | DEBUGP(2, dev, "<- cm4040_close\n"); | |
512 | return 0; | |
513 | } | |
514 | ||
fba395ee | 515 | static void cm4040_reader_release(struct pcmcia_device *link) |
77c44ab1 HW |
516 | { |
517 | struct reader_dev *dev = link->priv; | |
518 | ||
519 | DEBUGP(3, dev, "-> cm4040_reader_release\n"); | |
520 | while (link->open) { | |
521 | DEBUGP(3, dev, KERN_INFO MODULE_NAME ": delaying release " | |
522 | "until process has terminated\n"); | |
523 | wait_event(dev->devq, (link->open == 0)); | |
524 | } | |
525 | DEBUGP(3, dev, "<- cm4040_reader_release\n"); | |
526 | return; | |
527 | } | |
528 | ||
84e2d340 DB |
529 | static int cm4040_config_check(struct pcmcia_device *p_dev, |
530 | cistpl_cftable_entry_t *cfg, | |
8e2fc39d | 531 | cistpl_cftable_entry_t *dflt, |
ad913c11 | 532 | unsigned int vcc, |
84e2d340 | 533 | void *priv_data) |
77c44ab1 | 534 | { |
77c44ab1 | 535 | int rc; |
84e2d340 DB |
536 | if (!cfg->io.nwin) |
537 | return -ENODEV; | |
77c44ab1 | 538 | |
84e2d340 DB |
539 | /* Get the IOaddr */ |
540 | p_dev->io.BasePort1 = cfg->io.win[0].base; | |
541 | p_dev->io.NumPorts1 = cfg->io.win[0].len; | |
542 | p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; | |
543 | if (!(cfg->io.flags & CISTPL_IO_8BIT)) | |
544 | p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_16; | |
545 | if (!(cfg->io.flags & CISTPL_IO_16BIT)) | |
546 | p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; | |
547 | p_dev->io.IOAddrLines = cfg->io.flags & CISTPL_IO_LINES_MASK; | |
548 | ||
549 | rc = pcmcia_request_io(p_dev, &p_dev->io); | |
550 | dev_printk(KERN_INFO, &handle_to_dev(p_dev), | |
551 | "pcmcia_request_io returned 0x%x\n", rc); | |
552 | return rc; | |
553 | } | |
554 | ||
555 | ||
556 | static int reader_config(struct pcmcia_device *link, int devno) | |
557 | { | |
558 | struct reader_dev *dev; | |
559 | int fail_rc; | |
77c44ab1 | 560 | |
77c44ab1 HW |
561 | link->io.BasePort2 = 0; |
562 | link->io.NumPorts2 = 0; | |
563 | link->io.Attributes2 = 0; | |
84e2d340 DB |
564 | |
565 | if (pcmcia_loop_config(link, cm4040_config_check, NULL)) | |
77c44ab1 HW |
566 | goto cs_release; |
567 | ||
568 | link->conf.IntType = 00000002; | |
569 | ||
4c89e88b DB |
570 | fail_rc = pcmcia_request_configuration(link, &link->conf); |
571 | if (fail_rc != 0) { | |
fba395ee | 572 | dev_printk(KERN_INFO, &handle_to_dev(link), |
77c44ab1 HW |
573 | "pcmcia_request_configuration failed 0x%x\n", |
574 | fail_rc); | |
575 | goto cs_release; | |
576 | } | |
577 | ||
578 | dev = link->priv; | |
579 | sprintf(dev->node.dev_name, DEVICE_NAME "%d", devno); | |
580 | dev->node.major = major; | |
581 | dev->node.minor = devno; | |
e2d40963 | 582 | dev->node.next = &dev->node; |
77c44ab1 HW |
583 | |
584 | DEBUGP(2, dev, "device " DEVICE_NAME "%d at 0x%.4x-0x%.4x\n", devno, | |
585 | link->io.BasePort1, link->io.BasePort1+link->io.NumPorts1); | |
586 | DEBUGP(2, dev, "<- reader_config (succ)\n"); | |
587 | ||
15b99ac1 | 588 | return 0; |
77c44ab1 | 589 | |
77c44ab1 HW |
590 | cs_release: |
591 | reader_release(link); | |
15b99ac1 | 592 | return -ENODEV; |
77c44ab1 HW |
593 | } |
594 | ||
fba395ee | 595 | static void reader_release(struct pcmcia_device *link) |
77c44ab1 | 596 | { |
925796e0 | 597 | cm4040_reader_release(link); |
fba395ee | 598 | pcmcia_disable_device(link); |
77c44ab1 HW |
599 | } |
600 | ||
15b99ac1 | 601 | static int reader_probe(struct pcmcia_device *link) |
77c44ab1 HW |
602 | { |
603 | struct reader_dev *dev; | |
15b99ac1 | 604 | int i, ret; |
77c44ab1 HW |
605 | |
606 | for (i = 0; i < CM_MAX_DEV; i++) { | |
607 | if (dev_table[i] == NULL) | |
608 | break; | |
609 | } | |
610 | ||
611 | if (i == CM_MAX_DEV) | |
f8cfa618 | 612 | return -ENODEV; |
77c44ab1 HW |
613 | |
614 | dev = kzalloc(sizeof(struct reader_dev), GFP_KERNEL); | |
615 | if (dev == NULL) | |
f8cfa618 | 616 | return -ENOMEM; |
77c44ab1 HW |
617 | |
618 | dev->timeout = CCID_DRIVER_MINIMUM_TIMEOUT; | |
619 | dev->buffer_status = 0; | |
620 | ||
77c44ab1 | 621 | link->priv = dev; |
fba395ee | 622 | dev->p_dev = link; |
77c44ab1 HW |
623 | |
624 | link->conf.IntType = INT_MEMORY_AND_IO; | |
625 | dev_table[i] = link; | |
626 | ||
77c44ab1 HW |
627 | init_waitqueue_head(&dev->devq); |
628 | init_waitqueue_head(&dev->poll_wait); | |
629 | init_waitqueue_head(&dev->read_wait); | |
630 | init_waitqueue_head(&dev->write_wait); | |
40565f19 | 631 | setup_timer(&dev->poll_timer, cm4040_do_poll, 0); |
77c44ab1 | 632 | |
15b99ac1 | 633 | ret = reader_config(link, i); |
54493c10 AM |
634 | if (ret) { |
635 | dev_table[i] = NULL; | |
636 | kfree(dev); | |
15b99ac1 | 637 | return ret; |
54493c10 | 638 | } |
f8cfa618 | 639 | |
03457cd4 | 640 | device_create(cmx_class, NULL, MKDEV(major, i), NULL, "cmx%d", i); |
67bc6200 | 641 | |
f8cfa618 | 642 | return 0; |
77c44ab1 HW |
643 | } |
644 | ||
fba395ee | 645 | static void reader_detach(struct pcmcia_device *link) |
77c44ab1 HW |
646 | { |
647 | struct reader_dev *dev = link->priv; | |
cc3b4866 | 648 | int devno; |
77c44ab1 HW |
649 | |
650 | /* find device */ | |
cc3b4866 DB |
651 | for (devno = 0; devno < CM_MAX_DEV; devno++) { |
652 | if (dev_table[devno] == link) | |
77c44ab1 HW |
653 | break; |
654 | } | |
cc3b4866 | 655 | if (devno == CM_MAX_DEV) |
77c44ab1 HW |
656 | return; |
657 | ||
e2d40963 | 658 | reader_release(link); |
cc3b4866 DB |
659 | |
660 | dev_table[devno] = NULL; | |
661 | kfree(dev); | |
662 | ||
07c015e7 | 663 | device_destroy(cmx_class, MKDEV(major, devno)); |
67bc6200 | 664 | |
77c44ab1 HW |
665 | return; |
666 | } | |
667 | ||
62322d25 | 668 | static const struct file_operations reader_fops = { |
77c44ab1 HW |
669 | .owner = THIS_MODULE, |
670 | .read = cm4040_read, | |
671 | .write = cm4040_write, | |
672 | .open = cm4040_open, | |
673 | .release = cm4040_close, | |
674 | .poll = cm4040_poll, | |
675 | }; | |
676 | ||
677 | static struct pcmcia_device_id cm4040_ids[] = { | |
678 | PCMCIA_DEVICE_MANF_CARD(0x0223, 0x0200), | |
679 | PCMCIA_DEVICE_PROD_ID12("OMNIKEY", "CardMan 4040", | |
680 | 0xE32CDD8C, 0x8F23318B), | |
681 | PCMCIA_DEVICE_NULL, | |
682 | }; | |
683 | MODULE_DEVICE_TABLE(pcmcia, cm4040_ids); | |
684 | ||
685 | static struct pcmcia_driver reader_driver = { | |
686 | .owner = THIS_MODULE, | |
687 | .drv = { | |
688 | .name = "cm4040_cs", | |
689 | }, | |
15b99ac1 | 690 | .probe = reader_probe, |
cc3b4866 | 691 | .remove = reader_detach, |
77c44ab1 HW |
692 | .id_table = cm4040_ids, |
693 | }; | |
694 | ||
695 | static int __init cm4040_init(void) | |
696 | { | |
67bc6200 HW |
697 | int rc; |
698 | ||
77c44ab1 | 699 | printk(KERN_INFO "%s\n", version); |
67bc6200 | 700 | cmx_class = class_create(THIS_MODULE, "cardman_4040"); |
5eb5fc97 AM |
701 | if (IS_ERR(cmx_class)) |
702 | return PTR_ERR(cmx_class); | |
67bc6200 | 703 | |
77c44ab1 HW |
704 | major = register_chrdev(0, DEVICE_NAME, &reader_fops); |
705 | if (major < 0) { | |
706 | printk(KERN_WARNING MODULE_NAME | |
707 | ": could not get major number\n"); | |
54493c10 | 708 | class_destroy(cmx_class); |
5eb5fc97 | 709 | return major; |
77c44ab1 | 710 | } |
7fc5b1e3 HW |
711 | |
712 | rc = pcmcia_register_driver(&reader_driver); | |
713 | if (rc < 0) { | |
714 | unregister_chrdev(major, DEVICE_NAME); | |
54493c10 | 715 | class_destroy(cmx_class); |
7fc5b1e3 HW |
716 | return rc; |
717 | } | |
718 | ||
77c44ab1 HW |
719 | return 0; |
720 | } | |
721 | ||
722 | static void __exit cm4040_exit(void) | |
723 | { | |
77c44ab1 HW |
724 | printk(KERN_INFO MODULE_NAME ": unloading\n"); |
725 | pcmcia_unregister_driver(&reader_driver); | |
77c44ab1 | 726 | unregister_chrdev(major, DEVICE_NAME); |
67bc6200 | 727 | class_destroy(cmx_class); |
77c44ab1 HW |
728 | } |
729 | ||
730 | module_init(cm4040_init); | |
731 | module_exit(cm4040_exit); | |
732 | MODULE_LICENSE("Dual BSD/GPL"); |