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bluetooth: hidp_process_hid_control remove unnecessary parameter dealing
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / char / pcmcia / cm4000_cs.c
blob02518da6a386a934ef7c3af885c4630e3c46741f
1 /*
2 * A driver for the PCMCIA Smartcard Reader "Omnikey CardMan Mobile 4000"
3 *
4 * cm4000_cs.c support.linux@omnikey.com
5 *
6 * Tue Oct 23 11:32:43 GMT 2001 herp - cleaned up header files
7 * Sun Jan 20 10:11:15 MET 2002 herp - added modversion header files
8 * Thu Nov 14 16:34:11 GMT 2002 mh - added PPS functionality
9 * Tue Nov 19 16:36:27 GMT 2002 mh - added SUSPEND/RESUME functionailty
10 * Wed Jul 28 12:55:01 CEST 2004 mh - kernel 2.6 adjustments
11 *
12 * current version: 2.4.0gm4
13 *
14 * (C) 2000,2001,2002,2003,2004 Omnikey AG
15 *
16 * (C) 2005-2006 Harald Welte <laforge@gnumonks.org>
17 * - Adhere to Kernel CodingStyle
18 * - Port to 2.6.13 "new" style PCMCIA
19 * - Check for copy_{from,to}_user return values
20 * - Use nonseekable_open()
21 * - add class interface for udev device creation
22 *
23 * All rights reserved. Licensed under dual BSD/GPL license.
24 */
25
26 /* #define PCMCIA_DEBUG 6 */
27
28 #include <linux/kernel.h>
29 #include <linux/module.h>
30 #include <linux/slab.h>
31 #include <linux/init.h>
32 #include <linux/fs.h>
33 #include <linux/delay.h>
34 #include <linux/bitrev.h>
35 #include <asm/uaccess.h>
36 #include <asm/io.h>
37
38 #include <pcmcia/cs_types.h>
39 #include <pcmcia/cs.h>
40 #include <pcmcia/cistpl.h>
41 #include <pcmcia/cisreg.h>
42 #include <pcmcia/ciscode.h>
43 #include <pcmcia/ds.h>
44
45 #include <linux/cm4000_cs.h>
46
47 /* #define ATR_CSUM */
48
49 #ifdef PCMCIA_DEBUG
50 #define reader_to_dev(x) (&handle_to_dev(x->p_dev))
51 static int pc_debug = PCMCIA_DEBUG;
52 module_param(pc_debug, int, 0600);
53 #define DEBUGP(n, rdr, x, args...) do { \
54 if (pc_debug >= (n)) \
55 dev_printk(KERN_DEBUG, reader_to_dev(rdr), "%s:" x, \
56 __FUNCTION__ , ## args); \
57 } while (0)
58 #else
59 #define DEBUGP(n, rdr, x, args...)
60 #endif
61 static char *version = "cm4000_cs.c v2.4.0gm6 - All bugs added by Harald Welte";
62
63 #define T_1SEC (HZ)
64 #define T_10MSEC msecs_to_jiffies(10)
65 #define T_20MSEC msecs_to_jiffies(20)
66 #define T_40MSEC msecs_to_jiffies(40)
67 #define T_50MSEC msecs_to_jiffies(50)
68 #define T_100MSEC msecs_to_jiffies(100)
69 #define T_500MSEC msecs_to_jiffies(500)
70
71 static void cm4000_release(struct pcmcia_device *link);
72
73 static int major; /* major number we get from the kernel */
74
75 /* note: the first state has to have number 0 always */
76
77 #define M_FETCH_ATR 0
78 #define M_TIMEOUT_WAIT 1
79 #define M_READ_ATR_LEN 2
80 #define M_READ_ATR 3
81 #define M_ATR_PRESENT 4
82 #define M_BAD_CARD 5
83 #define M_CARDOFF 6
84
85 #define LOCK_IO 0
86 #define LOCK_MONITOR 1
87
88 #define IS_AUTOPPS_ACT 6
89 #define IS_PROCBYTE_PRESENT 7
90 #define IS_INVREV 8
91 #define IS_ANY_T0 9
92 #define IS_ANY_T1 10
93 #define IS_ATR_PRESENT 11
94 #define IS_ATR_VALID 12
95 #define IS_CMM_ABSENT 13
96 #define IS_BAD_LENGTH 14
97 #define IS_BAD_CSUM 15
98 #define IS_BAD_CARD 16
99
100 #define REG_FLAGS0(x) (x + 0)
101 #define REG_FLAGS1(x) (x + 1)
102 #define REG_NUM_BYTES(x) (x + 2)
103 #define REG_BUF_ADDR(x) (x + 3)
104 #define REG_BUF_DATA(x) (x + 4)
105 #define REG_NUM_SEND(x) (x + 5)
106 #define REG_BAUDRATE(x) (x + 6)
107 #define REG_STOPBITS(x) (x + 7)
108
109 struct cm4000_dev {
110 struct pcmcia_device *p_dev;
111 dev_node_t node; /* OS node (major,minor) */
112
113 unsigned char atr[MAX_ATR];
114 unsigned char rbuf[512];
115 unsigned char sbuf[512];
116
117 wait_queue_head_t devq; /* when removing cardman must not be
118 zeroed! */
119
120 wait_queue_head_t ioq; /* if IO is locked, wait on this Q */
121 wait_queue_head_t atrq; /* wait for ATR valid */
122 wait_queue_head_t readq; /* used by write to wake blk.read */
123
124 /* warning: do not move this fields.
125 * initialising to zero depends on it - see ZERO_DEV below. */
126 unsigned char atr_csum;
127 unsigned char atr_len_retry;
128 unsigned short atr_len;
129 unsigned short rlen; /* bytes avail. after write */
130 unsigned short rpos; /* latest read pos. write zeroes */
131 unsigned char procbyte; /* T=0 procedure byte */
132 unsigned char mstate; /* state of card monitor */
133 unsigned char cwarn; /* slow down warning */
134 unsigned char flags0; /* cardman IO-flags 0 */
135 unsigned char flags1; /* cardman IO-flags 1 */
136 unsigned int mdelay; /* variable monitor speeds, in jiffies */
137
138 unsigned int baudv; /* baud value for speed */
139 unsigned char ta1;
140 unsigned char proto; /* T=0, T=1, ... */
141 unsigned long flags; /* lock+flags (MONITOR,IO,ATR) * for concurrent
142 access */
143
144 unsigned char pts[4];
145
146 struct timer_list timer; /* used to keep monitor running */
147 int monitor_running;
148 };
149
150 #define ZERO_DEV(dev) \
151 memset(&dev->atr_csum,0, \
152 sizeof(struct cm4000_dev) - \
153 offsetof(struct cm4000_dev, atr_csum))
154
155 static struct pcmcia_device *dev_table[CM4000_MAX_DEV];
156 static struct class *cmm_class;
157
158 /* This table doesn't use spaces after the comma between fields and thus
159 * violates CodingStyle. However, I don't really think wrapping it around will
160 * make it any clearer to read -HW */
161 static unsigned char fi_di_table[10][14] = {
162 /*FI 00 01 02 03 04 05 06 07 08 09 10 11 12 13 */
163 /*DI */
164 /* 0 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11},
165 /* 1 */ {0x01,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x91,0x11,0x11,0x11,0x11},
166 /* 2 */ {0x02,0x12,0x22,0x32,0x11,0x11,0x11,0x11,0x11,0x92,0xA2,0xB2,0x11,0x11},
167 /* 3 */ {0x03,0x13,0x23,0x33,0x43,0x53,0x63,0x11,0x11,0x93,0xA3,0xB3,0xC3,0xD3},
168 /* 4 */ {0x04,0x14,0x24,0x34,0x44,0x54,0x64,0x11,0x11,0x94,0xA4,0xB4,0xC4,0xD4},
169 /* 5 */ {0x00,0x15,0x25,0x35,0x45,0x55,0x65,0x11,0x11,0x95,0xA5,0xB5,0xC5,0xD5},
170 /* 6 */ {0x06,0x16,0x26,0x36,0x46,0x56,0x66,0x11,0x11,0x96,0xA6,0xB6,0xC6,0xD6},
171 /* 7 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11},
172 /* 8 */ {0x08,0x11,0x28,0x38,0x48,0x58,0x68,0x11,0x11,0x98,0xA8,0xB8,0xC8,0xD8},
173 /* 9 */ {0x09,0x19,0x29,0x39,0x49,0x59,0x69,0x11,0x11,0x99,0xA9,0xB9,0xC9,0xD9}
174 };
175
176 #ifndef PCMCIA_DEBUG
177 #define xoutb outb
178 #define xinb inb
179 #else
180 static inline void xoutb(unsigned char val, unsigned short port)
181 {
182 if (pc_debug >= 7)
183 printk(KERN_DEBUG "outb(val=%.2x,port=%.4x)\n", val, port);
184 outb(val, port);
185 }
186 static inline unsigned char xinb(unsigned short port)
187 {
188 unsigned char val;
189
190 val = inb(port);
191 if (pc_debug >= 7)
192 printk(KERN_DEBUG "%.2x=inb(%.4x)\n", val, port);
193
194 return val;
195 }
196 #endif
197
198 static inline unsigned char invert_revert(unsigned char ch)
199 {
200 return bitrev8(~ch);
201 }
202
203 static void str_invert_revert(unsigned char *b, int len)
204 {
205 int i;
206
207 for (i = 0; i < len; i++)
208 b[i] = invert_revert(b[i]);
209 }
210
211 #define ATRLENCK(dev,pos) \
212 if (pos>=dev->atr_len || pos>=MAX_ATR) \
213 goto return_0;
214
215 static unsigned int calc_baudv(unsigned char fidi)
216 {
217 unsigned int wcrcf, wbrcf, fi_rfu, di_rfu;
218
219 fi_rfu = 372;
220 di_rfu = 1;
221
222 /* FI */
223 switch ((fidi >> 4) & 0x0F) {
224 case 0x00:
225 wcrcf = 372;
226 break;
227 case 0x01:
228 wcrcf = 372;
229 break;
230 case 0x02:
231 wcrcf = 558;
232 break;
233 case 0x03:
234 wcrcf = 744;
235 break;
236 case 0x04:
237 wcrcf = 1116;
238 break;
239 case 0x05:
240 wcrcf = 1488;
241 break;
242 case 0x06:
243 wcrcf = 1860;
244 break;
245 case 0x07:
246 wcrcf = fi_rfu;
247 break;
248 case 0x08:
249 wcrcf = fi_rfu;
250 break;
251 case 0x09:
252 wcrcf = 512;
253 break;
254 case 0x0A:
255 wcrcf = 768;
256 break;
257 case 0x0B:
258 wcrcf = 1024;
259 break;
260 case 0x0C:
261 wcrcf = 1536;
262 break;
263 case 0x0D:
264 wcrcf = 2048;
265 break;
266 default:
267 wcrcf = fi_rfu;
268 break;
269 }
270
271 /* DI */
272 switch (fidi & 0x0F) {
273 case 0x00:
274 wbrcf = di_rfu;
275 break;
276 case 0x01:
277 wbrcf = 1;
278 break;
279 case 0x02:
280 wbrcf = 2;
281 break;
282 case 0x03:
283 wbrcf = 4;
284 break;
285 case 0x04:
286 wbrcf = 8;
287 break;
288 case 0x05:
289 wbrcf = 16;
290 break;
291 case 0x06:
292 wbrcf = 32;
293 break;
294 case 0x07:
295 wbrcf = di_rfu;
296 break;
297 case 0x08:
298 wbrcf = 12;
299 break;
300 case 0x09:
301 wbrcf = 20;
302 break;
303 default:
304 wbrcf = di_rfu;
305 break;
306 }
307
308 return (wcrcf / wbrcf);
309 }
310
311 static unsigned short io_read_num_rec_bytes(ioaddr_t iobase, unsigned short *s)
312 {
313 unsigned short tmp;
314
315 tmp = *s = 0;
316 do {
317 *s = tmp;
318 tmp = inb(REG_NUM_BYTES(iobase)) |
319 (inb(REG_FLAGS0(iobase)) & 4 ? 0x100 : 0);
320 } while (tmp != *s);
321
322 return *s;
323 }
324
325 static int parse_atr(struct cm4000_dev *dev)
326 {
327 unsigned char any_t1, any_t0;
328 unsigned char ch, ifno;
329 int ix, done;
330
331 DEBUGP(3, dev, "-> parse_atr: dev->atr_len = %i\n", dev->atr_len);
332
333 if (dev->atr_len < 3) {
334 DEBUGP(5, dev, "parse_atr: atr_len < 3\n");
335 return 0;
336 }
337
338 if (dev->atr[0] == 0x3f)
339 set_bit(IS_INVREV, &dev->flags);
340 else
341 clear_bit(IS_INVREV, &dev->flags);
342 ix = 1;
343 ifno = 1;
344 ch = dev->atr[1];
345 dev->proto = 0; /* XXX PROTO */
346 any_t1 = any_t0 = done = 0;
347 dev->ta1 = 0x11; /* defaults to 9600 baud */
348 do {
349 if (ifno == 1 && (ch & 0x10)) {
350 /* read first interface byte and TA1 is present */
351 dev->ta1 = dev->atr[2];
352 DEBUGP(5, dev, "Card says FiDi is 0x%.2x\n", dev->ta1);
353 ifno++;
354 } else if ((ifno == 2) && (ch & 0x10)) { /* TA(2) */
355 dev->ta1 = 0x11;
356 ifno++;
357 }
358
359 DEBUGP(5, dev, "Yi=%.2x\n", ch & 0xf0);
360 ix += ((ch & 0x10) >> 4) /* no of int.face chars */
361 +((ch & 0x20) >> 5)
362 + ((ch & 0x40) >> 6)
363 + ((ch & 0x80) >> 7);
364 /* ATRLENCK(dev,ix); */
365 if (ch & 0x80) { /* TDi */
366 ch = dev->atr[ix];
367 if ((ch & 0x0f)) {
368 any_t1 = 1;
369 DEBUGP(5, dev, "card is capable of T=1\n");
370 } else {
371 any_t0 = 1;
372 DEBUGP(5, dev, "card is capable of T=0\n");
373 }
374 } else
375 done = 1;
376 } while (!done);
377
378 DEBUGP(5, dev, "ix=%d noHist=%d any_t1=%d\n",
379 ix, dev->atr[1] & 15, any_t1);
380 if (ix + 1 + (dev->atr[1] & 0x0f) + any_t1 != dev->atr_len) {
381 DEBUGP(5, dev, "length error\n");
382 return 0;
383 }
384 if (any_t0)
385 set_bit(IS_ANY_T0, &dev->flags);
386
387 if (any_t1) { /* compute csum */
388 dev->atr_csum = 0;
389 #ifdef ATR_CSUM
390 for (i = 1; i < dev->atr_len; i++)
391 dev->atr_csum ^= dev->atr[i];
392 if (dev->atr_csum) {
393 set_bit(IS_BAD_CSUM, &dev->flags);
394 DEBUGP(5, dev, "bad checksum\n");
395 goto return_0;
396 }
397 #endif
398 if (any_t0 == 0)
399 dev->proto = 1; /* XXX PROTO */
400 set_bit(IS_ANY_T1, &dev->flags);
401 }
402
403 return 1;
404 }
405
406 struct card_fixup {
407 char atr[12];
408 u_int8_t atr_len;
409 u_int8_t stopbits;
410 };
411
412 static struct card_fixup card_fixups[] = {
413 { /* ACOS */
414 .atr = { 0x3b, 0xb3, 0x11, 0x00, 0x00, 0x41, 0x01 },
415 .atr_len = 7,
416 .stopbits = 0x03,
417 },
418 { /* Motorola */
419 .atr = {0x3b, 0x76, 0x13, 0x00, 0x00, 0x80, 0x62, 0x07,
420 0x41, 0x81, 0x81 },
421 .atr_len = 11,
422 .stopbits = 0x04,
423 },
424 };
425
426 static void set_cardparameter(struct cm4000_dev *dev)
427 {
428 int i;
429 ioaddr_t iobase = dev->p_dev->io.BasePort1;
430 u_int8_t stopbits = 0x02; /* ISO default */
431
432 DEBUGP(3, dev, "-> set_cardparameter\n");
433
434 dev->flags1 = dev->flags1 | (((dev->baudv - 1) & 0x0100) >> 8);
435 xoutb(dev->flags1, REG_FLAGS1(iobase));
436 DEBUGP(5, dev, "flags1 = 0x%02x\n", dev->flags1);
437
438 /* set baudrate */
439 xoutb((unsigned char)((dev->baudv - 1) & 0xFF), REG_BAUDRATE(iobase));
440
441 DEBUGP(5, dev, "baudv = %i -> write 0x%02x\n", dev->baudv,
442 ((dev->baudv - 1) & 0xFF));
443
444 /* set stopbits */
445 for (i = 0; i < ARRAY_SIZE(card_fixups); i++) {
446 if (!memcmp(dev->atr, card_fixups[i].atr,
447 card_fixups[i].atr_len))
448 stopbits = card_fixups[i].stopbits;
449 }
450 xoutb(stopbits, REG_STOPBITS(iobase));
451
452 DEBUGP(3, dev, "<- set_cardparameter\n");
453 }
454
455 static int set_protocol(struct cm4000_dev *dev, struct ptsreq *ptsreq)
456 {
457
458 unsigned long tmp, i;
459 unsigned short num_bytes_read;
460 unsigned char pts_reply[4];
461 ssize_t rc;
462 ioaddr_t iobase = dev->p_dev->io.BasePort1;
463
464 rc = 0;
465
466 DEBUGP(3, dev, "-> set_protocol\n");
467 DEBUGP(5, dev, "ptsreq->Protocol = 0x%.8x, ptsreq->Flags=0x%.8x, "
468 "ptsreq->pts1=0x%.2x, ptsreq->pts2=0x%.2x, "
469 "ptsreq->pts3=0x%.2x\n", (unsigned int)ptsreq->protocol,
470 (unsigned int)ptsreq->flags, ptsreq->pts1, ptsreq->pts2,
471 ptsreq->pts3);
472
473 /* Fill PTS structure */
474 dev->pts[0] = 0xff;
475 dev->pts[1] = 0x00;
476 tmp = ptsreq->protocol;
477 while ((tmp = (tmp >> 1)) > 0)
478 dev->pts[1]++;
479 dev->proto = dev->pts[1]; /* Set new protocol */
480 dev->pts[1] = (0x01 << 4) | (dev->pts[1]);
481
482 /* Correct Fi/Di according to CM4000 Fi/Di table */
483 DEBUGP(5, dev, "Ta(1) from ATR is 0x%.2x\n", dev->ta1);
484 /* set Fi/Di according to ATR TA(1) */
485 dev->pts[2] = fi_di_table[dev->ta1 & 0x0F][(dev->ta1 >> 4) & 0x0F];
486
487 /* Calculate PCK character */
488 dev->pts[3] = dev->pts[0] ^ dev->pts[1] ^ dev->pts[2];
489
490 DEBUGP(5, dev, "pts0=%.2x, pts1=%.2x, pts2=%.2x, pts3=%.2x\n",
491 dev->pts[0], dev->pts[1], dev->pts[2], dev->pts[3]);
492
493 /* check card convention */
494 if (test_bit(IS_INVREV, &dev->flags))
495 str_invert_revert(dev->pts, 4);
496
497 /* reset SM */
498 xoutb(0x80, REG_FLAGS0(iobase));
499
500 /* Enable access to the message buffer */
501 DEBUGP(5, dev, "Enable access to the messages buffer\n");
502 dev->flags1 = 0x20 /* T_Active */
503 | (test_bit(IS_INVREV, &dev->flags) ? 0x02 : 0x00) /* inv parity */
504 | ((dev->baudv >> 8) & 0x01); /* MSB-baud */
505 xoutb(dev->flags1, REG_FLAGS1(iobase));
506
507 DEBUGP(5, dev, "Enable message buffer -> flags1 = 0x%.2x\n",
508 dev->flags1);
509
510 /* write challenge to the buffer */
511 DEBUGP(5, dev, "Write challenge to buffer: ");
512 for (i = 0; i < 4; i++) {
513 xoutb(i, REG_BUF_ADDR(iobase));
514 xoutb(dev->pts[i], REG_BUF_DATA(iobase)); /* buf data */
515 #ifdef PCMCIA_DEBUG
516 if (pc_debug >= 5)
517 printk("0x%.2x ", dev->pts[i]);
518 }
519 if (pc_debug >= 5)
520 printk("\n");
521 #else
522 }
523 #endif
524
525 /* set number of bytes to write */
526 DEBUGP(5, dev, "Set number of bytes to write\n");
527 xoutb(0x04, REG_NUM_SEND(iobase));
528
529 /* Trigger CARDMAN CONTROLLER */
530 xoutb(0x50, REG_FLAGS0(iobase));
531
532 /* Monitor progress */
533 /* wait for xmit done */
534 DEBUGP(5, dev, "Waiting for NumRecBytes getting valid\n");
535
536 for (i = 0; i < 100; i++) {
537 if (inb(REG_FLAGS0(iobase)) & 0x08) {
538 DEBUGP(5, dev, "NumRecBytes is valid\n");
539 break;
540 }
541 mdelay(10);
542 }
543 if (i == 100) {
544 DEBUGP(5, dev, "Timeout waiting for NumRecBytes getting "
545 "valid\n");
546 rc = -EIO;
547 goto exit_setprotocol;
548 }
549
550 DEBUGP(5, dev, "Reading NumRecBytes\n");
551 for (i = 0; i < 100; i++) {
552 io_read_num_rec_bytes(iobase, &num_bytes_read);
553 if (num_bytes_read >= 4) {
554 DEBUGP(2, dev, "NumRecBytes = %i\n", num_bytes_read);
555 break;
556 }
557 mdelay(10);
558 }
559
560 /* check whether it is a short PTS reply? */
561 if (num_bytes_read == 3)
562 i = 0;
563
564 if (i == 100) {
565 DEBUGP(5, dev, "Timeout reading num_bytes_read\n");
566 rc = -EIO;
567 goto exit_setprotocol;
568 }
569
570 DEBUGP(5, dev, "Reset the CARDMAN CONTROLLER\n");
571 xoutb(0x80, REG_FLAGS0(iobase));
572
573 /* Read PPS reply */
574 DEBUGP(5, dev, "Read PPS reply\n");
575 for (i = 0; i < num_bytes_read; i++) {
576 xoutb(i, REG_BUF_ADDR(iobase));
577 pts_reply[i] = inb(REG_BUF_DATA(iobase));
578 }
579
580 #ifdef PCMCIA_DEBUG
581 DEBUGP(2, dev, "PTSreply: ");
582 for (i = 0; i < num_bytes_read; i++) {
583 if (pc_debug >= 5)
584 printk("0x%.2x ", pts_reply[i]);
585 }
586 printk("\n");
587 #endif /* PCMCIA_DEBUG */
588
589 DEBUGP(5, dev, "Clear Tactive in Flags1\n");
590 xoutb(0x20, REG_FLAGS1(iobase));
591
592 /* Compare ptsreq and ptsreply */
593 if ((dev->pts[0] == pts_reply[0]) &&
594 (dev->pts[1] == pts_reply[1]) &&
595 (dev->pts[2] == pts_reply[2]) && (dev->pts[3] == pts_reply[3])) {
596 /* setcardparameter according to PPS */
597 dev->baudv = calc_baudv(dev->pts[2]);
598 set_cardparameter(dev);
599 } else if ((dev->pts[0] == pts_reply[0]) &&
600 ((dev->pts[1] & 0xef) == pts_reply[1]) &&
601 ((pts_reply[0] ^ pts_reply[1]) == pts_reply[2])) {
602 /* short PTS reply, set card parameter to default values */
603 dev->baudv = calc_baudv(0x11);
604 set_cardparameter(dev);
605 } else
606 rc = -EIO;
607
608 exit_setprotocol:
609 DEBUGP(3, dev, "<- set_protocol\n");
610 return rc;
611 }
612
613 static int io_detect_cm4000(ioaddr_t iobase, struct cm4000_dev *dev)
614 {
615
616 /* note: statemachine is assumed to be reset */
617 if (inb(REG_FLAGS0(iobase)) & 8) {
618 clear_bit(IS_ATR_VALID, &dev->flags);
619 set_bit(IS_CMM_ABSENT, &dev->flags);
620 return 0; /* detect CMM = 1 -> failure */
621 }
622 /* xoutb(0x40, REG_FLAGS1(iobase)); detectCMM */
623 xoutb(dev->flags1 | 0x40, REG_FLAGS1(iobase));
624 if ((inb(REG_FLAGS0(iobase)) & 8) == 0) {
625 clear_bit(IS_ATR_VALID, &dev->flags);
626 set_bit(IS_CMM_ABSENT, &dev->flags);
627 return 0; /* detect CMM=0 -> failure */
628 }
629 /* clear detectCMM again by restoring original flags1 */
630 xoutb(dev->flags1, REG_FLAGS1(iobase));
631 return 1;
632 }
633
634 static void terminate_monitor(struct cm4000_dev *dev)
635 {
636
637 /* tell the monitor to stop and wait until
638 * it terminates.
639 */
640 DEBUGP(3, dev, "-> terminate_monitor\n");
641 wait_event_interruptible(dev->devq,
642 test_and_set_bit(LOCK_MONITOR,
643 (void *)&dev->flags));
644
645 /* now, LOCK_MONITOR has been set.
646 * allow a last cycle in the monitor.
647 * the monitor will indicate that it has
648 * finished by clearing this bit.
649 */
650 DEBUGP(5, dev, "Now allow last cycle of monitor!\n");
651 while (test_bit(LOCK_MONITOR, (void *)&dev->flags))
652 msleep(25);
653
654 DEBUGP(5, dev, "Delete timer\n");
655 del_timer_sync(&dev->timer);
656 #ifdef PCMCIA_DEBUG
657 dev->monitor_running = 0;
658 #endif
659
660 DEBUGP(3, dev, "<- terminate_monitor\n");
661 }
662
663 /*
664 * monitor the card every 50msec. as a side-effect, retrieve the
665 * atr once a card is inserted. another side-effect of retrieving the
666 * atr is that the card will be powered on, so there is no need to
667 * power on the card explictely from the application: the driver
668 * is already doing that for you.
669 */
670
671 static void monitor_card(unsigned long p)
672 {
673 struct cm4000_dev *dev = (struct cm4000_dev *) p;
674 ioaddr_t iobase = dev->p_dev->io.BasePort1;
675 unsigned short s;
676 struct ptsreq ptsreq;
677 int i, atrc;
678
679 DEBUGP(7, dev, "-> monitor_card\n");
680
681 /* if someone has set the lock for us: we're done! */
682 if (test_and_set_bit(LOCK_MONITOR, &dev->flags)) {
683 DEBUGP(4, dev, "About to stop monitor\n");
684 /* no */
685 dev->rlen =
686 dev->rpos =
687 dev->atr_csum = dev->atr_len_retry = dev->cwarn = 0;
688 dev->mstate = M_FETCH_ATR;
689 clear_bit(LOCK_MONITOR, &dev->flags);
690 /* close et al. are sleeping on devq, so wake it */
691 wake_up_interruptible(&dev->devq);
692 DEBUGP(2, dev, "<- monitor_card (we are done now)\n");
693 return;
694 }
695
696 /* try to lock io: if it is already locked, just add another timer */
697 if (test_and_set_bit(LOCK_IO, (void *)&dev->flags)) {
698 DEBUGP(4, dev, "Couldn't get IO lock\n");
699 goto return_with_timer;
700 }
701
702 /* is a card/a reader inserted at all ? */
703 dev->flags0 = xinb(REG_FLAGS0(iobase));
704 DEBUGP(7, dev, "dev->flags0 = 0x%2x\n", dev->flags0);
705 DEBUGP(7, dev, "smartcard present: %s\n",
706 dev->flags0 & 1 ? "yes" : "no");
707 DEBUGP(7, dev, "cardman present: %s\n",
708 dev->flags0 == 0xff ? "no" : "yes");
709
710 if ((dev->flags0 & 1) == 0 /* no smartcard inserted */
711 || dev->flags0 == 0xff) { /* no cardman inserted */
712 /* no */
713 dev->rlen =
714 dev->rpos =
715 dev->atr_csum = dev->atr_len_retry = dev->cwarn = 0;
716 dev->mstate = M_FETCH_ATR;
717
718 dev->flags &= 0x000000ff; /* only keep IO and MONITOR locks */
719
720 if (dev->flags0 == 0xff) {
721 DEBUGP(4, dev, "set IS_CMM_ABSENT bit\n");
722 set_bit(IS_CMM_ABSENT, &dev->flags);
723 } else if (test_bit(IS_CMM_ABSENT, &dev->flags)) {
724 DEBUGP(4, dev, "clear IS_CMM_ABSENT bit "
725 "(card is removed)\n");
726 clear_bit(IS_CMM_ABSENT, &dev->flags);
727 }
728
729 goto release_io;
730 } else if ((dev->flags0 & 1) && test_bit(IS_CMM_ABSENT, &dev->flags)) {
731 /* cardman and card present but cardman was absent before
732 * (after suspend with inserted card) */
733 DEBUGP(4, dev, "clear IS_CMM_ABSENT bit (card is inserted)\n");
734 clear_bit(IS_CMM_ABSENT, &dev->flags);
735 }
736
737 if (test_bit(IS_ATR_VALID, &dev->flags) == 1) {
738 DEBUGP(7, dev, "believe ATR is already valid (do nothing)\n");
739 goto release_io;
740 }
741
742 switch (dev->mstate) {
743 unsigned char flags0;
744 case M_CARDOFF:
745 DEBUGP(4, dev, "M_CARDOFF\n");
746 flags0 = inb(REG_FLAGS0(iobase));
747 if (flags0 & 0x02) {
748 /* wait until Flags0 indicate power is off */
749 dev->mdelay = T_10MSEC;
750 } else {
751 /* Flags0 indicate power off and no card inserted now;
752 * Reset CARDMAN CONTROLLER */
753 xoutb(0x80, REG_FLAGS0(iobase));
754
755 /* prepare for fetching ATR again: after card off ATR
756 * is read again automatically */
757 dev->rlen =
758 dev->rpos =
759 dev->atr_csum =
760 dev->atr_len_retry = dev->cwarn = 0;
761 dev->mstate = M_FETCH_ATR;
762
763 /* minimal gap between CARDOFF and read ATR is 50msec */
764 dev->mdelay = T_50MSEC;
765 }
766 break;
767 case M_FETCH_ATR:
768 DEBUGP(4, dev, "M_FETCH_ATR\n");
769 xoutb(0x80, REG_FLAGS0(iobase));
770 DEBUGP(4, dev, "Reset BAUDV to 9600\n");
771 dev->baudv = 0x173; /* 9600 */
772 xoutb(0x02, REG_STOPBITS(iobase)); /* stopbits=2 */
773 xoutb(0x73, REG_BAUDRATE(iobase)); /* baud value */
774 xoutb(0x21, REG_FLAGS1(iobase)); /* T_Active=1, baud
775 value */
776 /* warm start vs. power on: */
777 xoutb(dev->flags0 & 2 ? 0x46 : 0x44, REG_FLAGS0(iobase));
778 dev->mdelay = T_40MSEC;
779 dev->mstate = M_TIMEOUT_WAIT;
780 break;
781 case M_TIMEOUT_WAIT:
782 DEBUGP(4, dev, "M_TIMEOUT_WAIT\n");
783 /* numRecBytes */
784 io_read_num_rec_bytes(iobase, &dev->atr_len);
785 dev->mdelay = T_10MSEC;
786 dev->mstate = M_READ_ATR_LEN;
787 break;
788 case M_READ_ATR_LEN:
789 DEBUGP(4, dev, "M_READ_ATR_LEN\n");
790 /* infinite loop possible, since there is no timeout */
791
792 #define MAX_ATR_LEN_RETRY 100
793
794 if (dev->atr_len == io_read_num_rec_bytes(iobase, &s)) {
795 if (dev->atr_len_retry++ >= MAX_ATR_LEN_RETRY) { /* + XX msec */
796 dev->mdelay = T_10MSEC;
797 dev->mstate = M_READ_ATR;
798 }
799 } else {
800 dev->atr_len = s;
801 dev->atr_len_retry = 0; /* set new timeout */
802 }
803
804 DEBUGP(4, dev, "Current ATR_LEN = %i\n", dev->atr_len);
805 break;
806 case M_READ_ATR:
807 DEBUGP(4, dev, "M_READ_ATR\n");
808 xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */
809 for (i = 0; i < dev->atr_len; i++) {
810 xoutb(i, REG_BUF_ADDR(iobase));
811 dev->atr[i] = inb(REG_BUF_DATA(iobase));
812 }
813 /* Deactivate T_Active flags */
814 DEBUGP(4, dev, "Deactivate T_Active flags\n");
815 dev->flags1 = 0x01;
816 xoutb(dev->flags1, REG_FLAGS1(iobase));
817
818 /* atr is present (which doesnt mean it's valid) */
819 set_bit(IS_ATR_PRESENT, &dev->flags);
820 if (dev->atr[0] == 0x03)
821 str_invert_revert(dev->atr, dev->atr_len);
822 atrc = parse_atr(dev);
823 if (atrc == 0) { /* atr invalid */
824 dev->mdelay = 0;
825 dev->mstate = M_BAD_CARD;
826 } else {
827 dev->mdelay = T_50MSEC;
828 dev->mstate = M_ATR_PRESENT;
829 set_bit(IS_ATR_VALID, &dev->flags);
830 }
831
832 if (test_bit(IS_ATR_VALID, &dev->flags) == 1) {
833 DEBUGP(4, dev, "monitor_card: ATR valid\n");
834 /* if ta1 == 0x11, no PPS necessary (default values) */
835 /* do not do PPS with multi protocol cards */
836 if ((test_bit(IS_AUTOPPS_ACT, &dev->flags) == 0) &&
837 (dev->ta1 != 0x11) &&
838 !(test_bit(IS_ANY_T0, &dev->flags) &&
839 test_bit(IS_ANY_T1, &dev->flags))) {
840 DEBUGP(4, dev, "Perform AUTOPPS\n");
841 set_bit(IS_AUTOPPS_ACT, &dev->flags);
842 ptsreq.protocol = ptsreq.protocol =
843 (0x01 << dev->proto);
844 ptsreq.flags = 0x01;
845 ptsreq.pts1 = 0x00;
846 ptsreq.pts2 = 0x00;
847 ptsreq.pts3 = 0x00;
848 if (set_protocol(dev, &ptsreq) == 0) {
849 DEBUGP(4, dev, "AUTOPPS ret SUCC\n");
850 clear_bit(IS_AUTOPPS_ACT, &dev->flags);
851 wake_up_interruptible(&dev->atrq);
852 } else {
853 DEBUGP(4, dev, "AUTOPPS failed: "
854 "repower using defaults\n");
855 /* prepare for repowering */
856 clear_bit(IS_ATR_PRESENT, &dev->flags);
857 clear_bit(IS_ATR_VALID, &dev->flags);
858 dev->rlen =
859 dev->rpos =
860 dev->atr_csum =
861 dev->atr_len_retry = dev->cwarn = 0;
862 dev->mstate = M_FETCH_ATR;
863
864 dev->mdelay = T_50MSEC;
865 }
866 } else {
867 /* for cards which use slightly different
868 * params (extra guard time) */
869 set_cardparameter(dev);
870 if (test_bit(IS_AUTOPPS_ACT, &dev->flags) == 1)
871 DEBUGP(4, dev, "AUTOPPS already active "
872 "2nd try:use default values\n");
873 if (dev->ta1 == 0x11)
874 DEBUGP(4, dev, "No AUTOPPS necessary "
875 "TA(1)==0x11\n");
876 if (test_bit(IS_ANY_T0, &dev->flags)
877 && test_bit(IS_ANY_T1, &dev->flags))
878 DEBUGP(4, dev, "Do NOT perform AUTOPPS "
879 "with multiprotocol cards\n");
880 clear_bit(IS_AUTOPPS_ACT, &dev->flags);
881 wake_up_interruptible(&dev->atrq);
882 }
883 } else {
884 DEBUGP(4, dev, "ATR invalid\n");
885 wake_up_interruptible(&dev->atrq);
886 }
887 break;
888 case M_BAD_CARD:
889 DEBUGP(4, dev, "M_BAD_CARD\n");
890 /* slow down warning, but prompt immediately after insertion */
891 if (dev->cwarn == 0 || dev->cwarn == 10) {
892 set_bit(IS_BAD_CARD, &dev->flags);
893 printk(KERN_WARNING MODULE_NAME ": device %s: ",
894 dev->node.dev_name);
895 if (test_bit(IS_BAD_CSUM, &dev->flags)) {
896 DEBUGP(4, dev, "ATR checksum (0x%.2x, should "
897 "be zero) failed\n", dev->atr_csum);
898 }
899 #ifdef PCMCIA_DEBUG
900 else if (test_bit(IS_BAD_LENGTH, &dev->flags)) {
901 DEBUGP(4, dev, "ATR length error\n");
902 } else {
903 DEBUGP(4, dev, "card damaged or wrong way "
904 "inserted\n");
905 }
906 #endif
907 dev->cwarn = 0;
908 wake_up_interruptible(&dev->atrq); /* wake open */
909 }
910 dev->cwarn++;
911 dev->mdelay = T_100MSEC;
912 dev->mstate = M_FETCH_ATR;
913 break;
914 default:
915 DEBUGP(7, dev, "Unknown action\n");
916 break; /* nothing */
917 }
918
919 release_io:
920 DEBUGP(7, dev, "release_io\n");
921 clear_bit(LOCK_IO, &dev->flags);
922 wake_up_interruptible(&dev->ioq); /* whoever needs IO */
923
924 return_with_timer:
925 DEBUGP(7, dev, "<- monitor_card (returns with timer)\n");
926 mod_timer(&dev->timer, jiffies + dev->mdelay);
927 clear_bit(LOCK_MONITOR, &dev->flags);
928 }
929
930 /* Interface to userland (file_operations) */
931
932 static ssize_t cmm_read(struct file *filp, __user char *buf, size_t count,
933 loff_t *ppos)
934 {
935 struct cm4000_dev *dev = filp->private_data;
936 ioaddr_t iobase = dev->p_dev->io.BasePort1;
937 ssize_t rc;
938 int i, j, k;
939
940 DEBUGP(2, dev, "-> cmm_read(%s,%d)\n", current->comm, current->pid);
941
942 if (count == 0) /* according to manpage */
943 return 0;
944
945 if (!pcmcia_dev_present(dev->p_dev) || /* device removed */
946 test_bit(IS_CMM_ABSENT, &dev->flags))
947 return -ENODEV;
948
949 if (test_bit(IS_BAD_CSUM, &dev->flags))
950 return -EIO;
951
952 /* also see the note about this in cmm_write */
953 if (wait_event_interruptible
954 (dev->atrq,
955 ((filp->f_flags & O_NONBLOCK)
956 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) {
957 if (filp->f_flags & O_NONBLOCK)
958 return -EAGAIN;
959 return -ERESTARTSYS;
960 }
961
962 if (test_bit(IS_ATR_VALID, &dev->flags) == 0)
963 return -EIO;
964
965 /* this one implements blocking IO */
966 if (wait_event_interruptible
967 (dev->readq,
968 ((filp->f_flags & O_NONBLOCK) || (dev->rpos < dev->rlen)))) {
969 if (filp->f_flags & O_NONBLOCK)
970 return -EAGAIN;
971 return -ERESTARTSYS;
972 }
973
974 /* lock io */
975 if (wait_event_interruptible
976 (dev->ioq,
977 ((filp->f_flags & O_NONBLOCK)
978 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) {
979 if (filp->f_flags & O_NONBLOCK)
980 return -EAGAIN;
981 return -ERESTARTSYS;
982 }
983
984 rc = 0;
985 dev->flags0 = inb(REG_FLAGS0(iobase));
986 if ((dev->flags0 & 1) == 0 /* no smartcard inserted */
987 || dev->flags0 == 0xff) { /* no cardman inserted */
988 clear_bit(IS_ATR_VALID, &dev->flags);
989 if (dev->flags0 & 1) {
990 set_bit(IS_CMM_ABSENT, &dev->flags);
991 rc = -ENODEV;
992 }
993 rc = -EIO;
994 goto release_io;
995 }
996
997 DEBUGP(4, dev, "begin read answer\n");
998 j = min(count, (size_t)(dev->rlen - dev->rpos));
999 k = dev->rpos;
1000 if (k + j > 255)
1001 j = 256 - k;
1002 DEBUGP(4, dev, "read1 j=%d\n", j);
1003 for (i = 0; i < j; i++) {
1004 xoutb(k++, REG_BUF_ADDR(iobase));
1005 dev->rbuf[i] = xinb(REG_BUF_DATA(iobase));
1006 }
1007 j = min(count, (size_t)(dev->rlen - dev->rpos));
1008 if (k + j > 255) {
1009 DEBUGP(4, dev, "read2 j=%d\n", j);
1010 dev->flags1 |= 0x10; /* MSB buf addr set */
1011 xoutb(dev->flags1, REG_FLAGS1(iobase));
1012 for (; i < j; i++) {
1013 xoutb(k++, REG_BUF_ADDR(iobase));
1014 dev->rbuf[i] = xinb(REG_BUF_DATA(iobase));
1015 }
1016 }
1017
1018 if (dev->proto == 0 && count > dev->rlen - dev->rpos) {
1019 DEBUGP(4, dev, "T=0 and count > buffer\n");
1020 dev->rbuf[i] = dev->rbuf[i - 1];
1021 dev->rbuf[i - 1] = dev->procbyte;
1022 j++;
1023 }
1024 count = j;
1025
1026 dev->rpos = dev->rlen + 1;
1027
1028 /* Clear T1Active */
1029 DEBUGP(4, dev, "Clear T1Active\n");
1030 dev->flags1 &= 0xdf;
1031 xoutb(dev->flags1, REG_FLAGS1(iobase));
1032
1033 xoutb(0, REG_FLAGS1(iobase)); /* clear detectCMM */
1034 /* last check before exit */
1035 if (!io_detect_cm4000(iobase, dev))
1036 count = -ENODEV;
1037
1038 if (test_bit(IS_INVREV, &dev->flags) && count > 0)
1039 str_invert_revert(dev->rbuf, count);
1040
1041 if (copy_to_user(buf, dev->rbuf, count))
1042 return -EFAULT;
1043
1044 release_io:
1045 clear_bit(LOCK_IO, &dev->flags);
1046 wake_up_interruptible(&dev->ioq);
1047
1048 DEBUGP(2, dev, "<- cmm_read returns: rc = %Zi\n",
1049 (rc < 0 ? rc : count));
1050 return rc < 0 ? rc : count;
1051 }
1052
1053 static ssize_t cmm_write(struct file *filp, const char __user *buf,
1054 size_t count, loff_t *ppos)
1055 {
1056 struct cm4000_dev *dev = (struct cm4000_dev *) filp->private_data;
1057 ioaddr_t iobase = dev->p_dev->io.BasePort1;
1058 unsigned short s;
1059 unsigned char tmp;
1060 unsigned char infolen;
1061 unsigned char sendT0;
1062 unsigned short nsend;
1063 unsigned short nr;
1064 ssize_t rc;
1065 int i;
1066
1067 DEBUGP(2, dev, "-> cmm_write(%s,%d)\n", current->comm, current->pid);
1068
1069 if (count == 0) /* according to manpage */
1070 return 0;
1071
1072 if (dev->proto == 0 && count < 4) {
1073 /* T0 must have at least 4 bytes */
1074 DEBUGP(4, dev, "T0 short write\n");
1075 return -EIO;
1076 }
1077
1078 nr = count & 0x1ff; /* max bytes to write */
1079
1080 sendT0 = dev->proto ? 0 : nr > 5 ? 0x08 : 0;
1081
1082 if (!pcmcia_dev_present(dev->p_dev) || /* device removed */
1083 test_bit(IS_CMM_ABSENT, &dev->flags))
1084 return -ENODEV;
1085
1086 if (test_bit(IS_BAD_CSUM, &dev->flags)) {
1087 DEBUGP(4, dev, "bad csum\n");
1088 return -EIO;
1089 }
1090
1091 /*
1092 * wait for atr to become valid.
1093 * note: it is important to lock this code. if we dont, the monitor
1094 * could be run between test_bit and the call to sleep on the
1095 * atr-queue. if *then* the monitor detects atr valid, it will wake up
1096 * any process on the atr-queue, *but* since we have been interrupted,
1097 * we do not yet sleep on this queue. this would result in a missed
1098 * wake_up and the calling process would sleep forever (until
1099 * interrupted). also, do *not* restore_flags before sleep_on, because
1100 * this could result in the same situation!
1101 */
1102 if (wait_event_interruptible
1103 (dev->atrq,
1104 ((filp->f_flags & O_NONBLOCK)
1105 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) {
1106 if (filp->f_flags & O_NONBLOCK)
1107 return -EAGAIN;
1108 return -ERESTARTSYS;
1109 }
1110
1111 if (test_bit(IS_ATR_VALID, &dev->flags) == 0) { /* invalid atr */
1112 DEBUGP(4, dev, "invalid ATR\n");
1113 return -EIO;
1114 }
1115
1116 /* lock io */
1117 if (wait_event_interruptible
1118 (dev->ioq,
1119 ((filp->f_flags & O_NONBLOCK)
1120 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) {
1121 if (filp->f_flags & O_NONBLOCK)
1122 return -EAGAIN;
1123 return -ERESTARTSYS;
1124 }
1125
1126 if (copy_from_user(dev->sbuf, buf, ((count > 512) ? 512 : count)))
1127 return -EFAULT;
1128
1129 rc = 0;
1130 dev->flags0 = inb(REG_FLAGS0(iobase));
1131 if ((dev->flags0 & 1) == 0 /* no smartcard inserted */
1132 || dev->flags0 == 0xff) { /* no cardman inserted */
1133 clear_bit(IS_ATR_VALID, &dev->flags);
1134 if (dev->flags0 & 1) {
1135 set_bit(IS_CMM_ABSENT, &dev->flags);
1136 rc = -ENODEV;
1137 } else {
1138 DEBUGP(4, dev, "IO error\n");
1139 rc = -EIO;
1140 }
1141 goto release_io;
1142 }
1143
1144 xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */
1145
1146 if (!io_detect_cm4000(iobase, dev)) {
1147 rc = -ENODEV;
1148 goto release_io;
1149 }
1150
1151 /* reflect T=0 send/read mode in flags1 */
1152 dev->flags1 |= (sendT0);
1153
1154 set_cardparameter(dev);
1155
1156 /* dummy read, reset flag procedure received */
1157 tmp = inb(REG_FLAGS1(iobase));
1158
1159 dev->flags1 = 0x20 /* T_Active */
1160 | (sendT0)
1161 | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0)/* inverse parity */
1162 | (((dev->baudv - 1) & 0x0100) >> 8); /* MSB-Baud */
1163 DEBUGP(1, dev, "set dev->flags1 = 0x%.2x\n", dev->flags1);
1164 xoutb(dev->flags1, REG_FLAGS1(iobase));
1165
1166 /* xmit data */
1167 DEBUGP(4, dev, "Xmit data\n");
1168 for (i = 0; i < nr; i++) {
1169 if (i >= 256) {
1170 dev->flags1 = 0x20 /* T_Active */
1171 | (sendT0) /* SendT0 */
1172 /* inverse parity: */
1173 | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0)
1174 | (((dev->baudv - 1) & 0x0100) >> 8) /* MSB-Baud */
1175 | 0x10; /* set address high */
1176 DEBUGP(4, dev, "dev->flags = 0x%.2x - set address "
1177 "high\n", dev->flags1);
1178 xoutb(dev->flags1, REG_FLAGS1(iobase));
1179 }
1180 if (test_bit(IS_INVREV, &dev->flags)) {
1181 DEBUGP(4, dev, "Apply inverse convention for 0x%.2x "
1182 "-> 0x%.2x\n", (unsigned char)dev->sbuf[i],
1183 invert_revert(dev->sbuf[i]));
1184 xoutb(i, REG_BUF_ADDR(iobase));
1185 xoutb(invert_revert(dev->sbuf[i]),
1186 REG_BUF_DATA(iobase));
1187 } else {
1188 xoutb(i, REG_BUF_ADDR(iobase));
1189 xoutb(dev->sbuf[i], REG_BUF_DATA(iobase));
1190 }
1191 }
1192 DEBUGP(4, dev, "Xmit done\n");
1193
1194 if (dev->proto == 0) {
1195 /* T=0 proto: 0 byte reply */
1196 if (nr == 4) {
1197 DEBUGP(4, dev, "T=0 assumes 0 byte reply\n");
1198 xoutb(i, REG_BUF_ADDR(iobase));
1199 if (test_bit(IS_INVREV, &dev->flags))
1200 xoutb(0xff, REG_BUF_DATA(iobase));
1201 else
1202 xoutb(0x00, REG_BUF_DATA(iobase));
1203 }
1204
1205 /* numSendBytes */
1206 if (sendT0)
1207 nsend = nr;
1208 else {
1209 if (nr == 4)
1210 nsend = 5;
1211 else {
1212 nsend = 5 + (unsigned char)dev->sbuf[4];
1213 if (dev->sbuf[4] == 0)
1214 nsend += 0x100;
1215 }
1216 }
1217 } else
1218 nsend = nr;
1219
1220 /* T0: output procedure byte */
1221 if (test_bit(IS_INVREV, &dev->flags)) {
1222 DEBUGP(4, dev, "T=0 set Procedure byte (inverse-reverse) "
1223 "0x%.2x\n", invert_revert(dev->sbuf[1]));
1224 xoutb(invert_revert(dev->sbuf[1]), REG_NUM_BYTES(iobase));
1225 } else {
1226 DEBUGP(4, dev, "T=0 set Procedure byte 0x%.2x\n", dev->sbuf[1]);
1227 xoutb(dev->sbuf[1], REG_NUM_BYTES(iobase));
1228 }
1229
1230 DEBUGP(1, dev, "set NumSendBytes = 0x%.2x\n",
1231 (unsigned char)(nsend & 0xff));
1232 xoutb((unsigned char)(nsend & 0xff), REG_NUM_SEND(iobase));
1233
1234 DEBUGP(1, dev, "Trigger CARDMAN CONTROLLER (0x%.2x)\n",
1235 0x40 /* SM_Active */
1236 | (dev->flags0 & 2 ? 0 : 4) /* power on if needed */
1237 |(dev->proto ? 0x10 : 0x08) /* T=1/T=0 */
1238 |(nsend & 0x100) >> 8 /* MSB numSendBytes */ );
1239 xoutb(0x40 /* SM_Active */
1240 | (dev->flags0 & 2 ? 0 : 4) /* power on if needed */
1241 |(dev->proto ? 0x10 : 0x08) /* T=1/T=0 */
1242 |(nsend & 0x100) >> 8, /* MSB numSendBytes */
1243 REG_FLAGS0(iobase));
1244
1245 /* wait for xmit done */
1246 if (dev->proto == 1) {
1247 DEBUGP(4, dev, "Wait for xmit done\n");
1248 for (i = 0; i < 1000; i++) {
1249 if (inb(REG_FLAGS0(iobase)) & 0x08)
1250 break;
1251 msleep_interruptible(10);
1252 }
1253 if (i == 1000) {
1254 DEBUGP(4, dev, "timeout waiting for xmit done\n");
1255 rc = -EIO;
1256 goto release_io;
1257 }
1258 }
1259
1260 /* T=1: wait for infoLen */
1261
1262 infolen = 0;
1263 if (dev->proto) {
1264 /* wait until infoLen is valid */
1265 for (i = 0; i < 6000; i++) { /* max waiting time of 1 min */
1266 io_read_num_rec_bytes(iobase, &s);
1267 if (s >= 3) {
1268 infolen = inb(REG_FLAGS1(iobase));
1269 DEBUGP(4, dev, "infolen=%d\n", infolen);
1270 break;
1271 }
1272 msleep_interruptible(10);
1273 }
1274 if (i == 6000) {
1275 DEBUGP(4, dev, "timeout waiting for infoLen\n");
1276 rc = -EIO;
1277 goto release_io;
1278 }
1279 } else
1280 clear_bit(IS_PROCBYTE_PRESENT, &dev->flags);
1281
1282 /* numRecBytes | bit9 of numRecytes */
1283 io_read_num_rec_bytes(iobase, &dev->rlen);
1284 for (i = 0; i < 600; i++) { /* max waiting time of 2 sec */
1285 if (dev->proto) {
1286 if (dev->rlen >= infolen + 4)
1287 break;
1288 }
1289 msleep_interruptible(10);
1290 /* numRecBytes | bit9 of numRecytes */
1291 io_read_num_rec_bytes(iobase, &s);
1292 if (s > dev->rlen) {
1293 DEBUGP(1, dev, "NumRecBytes inc (reset timeout)\n");
1294 i = 0; /* reset timeout */
1295 dev->rlen = s;
1296 }
1297 /* T=0: we are done when numRecBytes doesn't
1298 * increment any more and NoProcedureByte
1299 * is set and numRecBytes == bytes sent + 6
1300 * (header bytes + data + 1 for sw2)
1301 * except when the card replies an error
1302 * which means, no data will be sent back.
1303 */
1304 else if (dev->proto == 0) {
1305 if ((inb(REG_BUF_ADDR(iobase)) & 0x80)) {
1306 /* no procedure byte received since last read */
1307 DEBUGP(1, dev, "NoProcedure byte set\n");
1308 /* i=0; */
1309 } else {
1310 /* procedure byte received since last read */
1311 DEBUGP(1, dev, "NoProcedure byte unset "
1312 "(reset timeout)\n");
1313 dev->procbyte = inb(REG_FLAGS1(iobase));
1314 DEBUGP(1, dev, "Read procedure byte 0x%.2x\n",
1315 dev->procbyte);
1316 i = 0; /* resettimeout */
1317 }
1318 if (inb(REG_FLAGS0(iobase)) & 0x08) {
1319 DEBUGP(1, dev, "T0Done flag (read reply)\n");
1320 break;
1321 }
1322 }
1323 if (dev->proto)
1324 infolen = inb(REG_FLAGS1(iobase));
1325 }
1326 if (i == 600) {
1327 DEBUGP(1, dev, "timeout waiting for numRecBytes\n");
1328 rc = -EIO;
1329 goto release_io;
1330 } else {
1331 if (dev->proto == 0) {
1332 DEBUGP(1, dev, "Wait for T0Done bit to be set\n");
1333 for (i = 0; i < 1000; i++) {
1334 if (inb(REG_FLAGS0(iobase)) & 0x08)
1335 break;
1336 msleep_interruptible(10);
1337 }
1338 if (i == 1000) {
1339 DEBUGP(1, dev, "timeout waiting for T0Done\n");
1340 rc = -EIO;
1341 goto release_io;
1342 }
1343
1344 dev->procbyte = inb(REG_FLAGS1(iobase));
1345 DEBUGP(4, dev, "Read procedure byte 0x%.2x\n",
1346 dev->procbyte);
1347
1348 io_read_num_rec_bytes(iobase, &dev->rlen);
1349 DEBUGP(4, dev, "Read NumRecBytes = %i\n", dev->rlen);
1350
1351 }
1352 }
1353 /* T=1: read offset=zero, T=0: read offset=after challenge */
1354 dev->rpos = dev->proto ? 0 : nr == 4 ? 5 : nr > dev->rlen ? 5 : nr;
1355 DEBUGP(4, dev, "dev->rlen = %i, dev->rpos = %i, nr = %i\n",
1356 dev->rlen, dev->rpos, nr);
1357
1358 release_io:
1359 DEBUGP(4, dev, "Reset SM\n");
1360 xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */
1361
1362 if (rc < 0) {
1363 DEBUGP(4, dev, "Write failed but clear T_Active\n");
1364 dev->flags1 &= 0xdf;
1365 xoutb(dev->flags1, REG_FLAGS1(iobase));
1366 }
1367
1368 clear_bit(LOCK_IO, &dev->flags);
1369 wake_up_interruptible(&dev->ioq);
1370 wake_up_interruptible(&dev->readq); /* tell read we have data */
1371
1372 /* ITSEC E2: clear write buffer */
1373 memset((char *)dev->sbuf, 0, 512);
1374
1375 /* return error or actually written bytes */
1376 DEBUGP(2, dev, "<- cmm_write\n");
1377 return rc < 0 ? rc : nr;
1378 }
1379
1380 static void start_monitor(struct cm4000_dev *dev)
1381 {
1382 DEBUGP(3, dev, "-> start_monitor\n");
1383 if (!dev->monitor_running) {
1384 DEBUGP(5, dev, "create, init and add timer\n");
1385 setup_timer(&dev->timer, monitor_card, (unsigned long)dev);
1386 dev->monitor_running = 1;
1387 mod_timer(&dev->timer, jiffies);
1388 } else
1389 DEBUGP(5, dev, "monitor already running\n");
1390 DEBUGP(3, dev, "<- start_monitor\n");
1391 }
1392
1393 static void stop_monitor(struct cm4000_dev *dev)
1394 {
1395 DEBUGP(3, dev, "-> stop_monitor\n");
1396 if (dev->monitor_running) {
1397 DEBUGP(5, dev, "stopping monitor\n");
1398 terminate_monitor(dev);
1399 /* reset monitor SM */
1400 clear_bit(IS_ATR_VALID, &dev->flags);
1401 clear_bit(IS_ATR_PRESENT, &dev->flags);
1402 } else
1403 DEBUGP(5, dev, "monitor already stopped\n");
1404 DEBUGP(3, dev, "<- stop_monitor\n");
1405 }
1406
1407 static int cmm_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
1408 unsigned long arg)
1409 {
1410 struct cm4000_dev *dev = filp->private_data;
1411 ioaddr_t iobase = dev->p_dev->io.BasePort1;
1412 struct pcmcia_device *link;
1413 int size;
1414 int rc;
1415 void __user *argp = (void __user *)arg;
1416 #ifdef PCMCIA_DEBUG
1417 char *ioctl_names[CM_IOC_MAXNR + 1] = {
1418 [_IOC_NR(CM_IOCGSTATUS)] "CM_IOCGSTATUS",
1419 [_IOC_NR(CM_IOCGATR)] "CM_IOCGATR",
1420 [_IOC_NR(CM_IOCARDOFF)] "CM_IOCARDOFF",
1421 [_IOC_NR(CM_IOCSPTS)] "CM_IOCSPTS",
1422 [_IOC_NR(CM_IOSDBGLVL)] "CM4000_DBGLVL",
1423 };
1424 #endif
1425 DEBUGP(3, dev, "cmm_ioctl(device=%d.%d) %s\n", imajor(inode),
1426 iminor(inode), ioctl_names[_IOC_NR(cmd)]);
1427
1428 link = dev_table[iminor(inode)];
1429 if (!pcmcia_dev_present(link)) {
1430 DEBUGP(4, dev, "DEV_OK false\n");
1431 return -ENODEV;
1432 }
1433
1434 if (test_bit(IS_CMM_ABSENT, &dev->flags)) {
1435 DEBUGP(4, dev, "CMM_ABSENT flag set\n");
1436 return -ENODEV;
1437 }
1438
1439 if (_IOC_TYPE(cmd) != CM_IOC_MAGIC) {
1440 DEBUGP(4, dev, "ioctype mismatch\n");
1441 return -EINVAL;
1442 }
1443 if (_IOC_NR(cmd) > CM_IOC_MAXNR) {
1444 DEBUGP(4, dev, "iocnr mismatch\n");
1445 return -EINVAL;
1446 }
1447 size = _IOC_SIZE(cmd);
1448 rc = 0;
1449 DEBUGP(4, dev, "iocdir=%.4x iocr=%.4x iocw=%.4x iocsize=%d cmd=%.4x\n",
1450 _IOC_DIR(cmd), _IOC_READ, _IOC_WRITE, size, cmd);
1451
1452 if (_IOC_DIR(cmd) & _IOC_READ) {
1453 if (!access_ok(VERIFY_WRITE, argp, size))
1454 return -EFAULT;
1455 }
1456 if (_IOC_DIR(cmd) & _IOC_WRITE) {
1457 if (!access_ok(VERIFY_READ, argp, size))
1458 return -EFAULT;
1459 }
1460
1461 switch (cmd) {
1462 case CM_IOCGSTATUS:
1463 DEBUGP(4, dev, " ... in CM_IOCGSTATUS\n");
1464 {
1465 int status;
1466
1467 /* clear other bits, but leave inserted & powered as
1468 * they are */
1469 status = dev->flags0 & 3;
1470 if (test_bit(IS_ATR_PRESENT, &dev->flags))
1471 status |= CM_ATR_PRESENT;
1472 if (test_bit(IS_ATR_VALID, &dev->flags))
1473 status |= CM_ATR_VALID;
1474 if (test_bit(IS_CMM_ABSENT, &dev->flags))
1475 status |= CM_NO_READER;
1476 if (test_bit(IS_BAD_CARD, &dev->flags))
1477 status |= CM_BAD_CARD;
1478 if (copy_to_user(argp, &status, sizeof(int)))
1479 return -EFAULT;
1480 }
1481 return 0;
1482 case CM_IOCGATR:
1483 DEBUGP(4, dev, "... in CM_IOCGATR\n");
1484 {
1485 struct atreq __user *atreq = argp;
1486 int tmp;
1487 /* allow nonblocking io and being interrupted */
1488 if (wait_event_interruptible
1489 (dev->atrq,
1490 ((filp->f_flags & O_NONBLOCK)
1491 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags)
1492 != 0)))) {
1493 if (filp->f_flags & O_NONBLOCK)
1494 return -EAGAIN;
1495 return -ERESTARTSYS;
1496 }
1497
1498 if (test_bit(IS_ATR_VALID, &dev->flags) == 0) {
1499 tmp = -1;
1500 if (copy_to_user(&(atreq->atr_len), &tmp,
1501 sizeof(int)))
1502 return -EFAULT;
1503 } else {
1504 if (copy_to_user(atreq->atr, dev->atr,
1505 dev->atr_len))
1506 return -EFAULT;
1507
1508 tmp = dev->atr_len;
1509 if (copy_to_user(&(atreq->atr_len), &tmp, sizeof(int)))
1510 return -EFAULT;
1511 }
1512 return 0;
1513 }
1514 case CM_IOCARDOFF:
1515
1516 #ifdef PCMCIA_DEBUG
1517 DEBUGP(4, dev, "... in CM_IOCARDOFF\n");
1518 if (dev->flags0 & 0x01) {
1519 DEBUGP(4, dev, " Card inserted\n");
1520 } else {
1521 DEBUGP(2, dev, " No card inserted\n");
1522 }
1523 if (dev->flags0 & 0x02) {
1524 DEBUGP(4, dev, " Card powered\n");
1525 } else {
1526 DEBUGP(2, dev, " Card not powered\n");
1527 }
1528 #endif
1529
1530 /* is a card inserted and powered? */
1531 if ((dev->flags0 & 0x01) && (dev->flags0 & 0x02)) {
1532
1533 /* get IO lock */
1534 if (wait_event_interruptible
1535 (dev->ioq,
1536 ((filp->f_flags & O_NONBLOCK)
1537 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags)
1538 == 0)))) {
1539 if (filp->f_flags & O_NONBLOCK)
1540 return -EAGAIN;
1541 return -ERESTARTSYS;
1542 }
1543 /* Set Flags0 = 0x42 */
1544 DEBUGP(4, dev, "Set Flags0=0x42 \n");
1545 xoutb(0x42, REG_FLAGS0(iobase));
1546 clear_bit(IS_ATR_PRESENT, &dev->flags);
1547 clear_bit(IS_ATR_VALID, &dev->flags);
1548 dev->mstate = M_CARDOFF;
1549 clear_bit(LOCK_IO, &dev->flags);
1550 if (wait_event_interruptible
1551 (dev->atrq,
1552 ((filp->f_flags & O_NONBLOCK)
1553 || (test_bit(IS_ATR_VALID, (void *)&dev->flags) !=
1554 0)))) {
1555 if (filp->f_flags & O_NONBLOCK)
1556 return -EAGAIN;
1557 return -ERESTARTSYS;
1558 }
1559 }
1560 /* release lock */
1561 clear_bit(LOCK_IO, &dev->flags);
1562 wake_up_interruptible(&dev->ioq);
1563
1564 return 0;
1565 case CM_IOCSPTS:
1566 {
1567 struct ptsreq krnptsreq;
1568
1569 if (copy_from_user(&krnptsreq, argp,
1570 sizeof(struct ptsreq)))
1571 return -EFAULT;
1572
1573 rc = 0;
1574 DEBUGP(4, dev, "... in CM_IOCSPTS\n");
1575 /* wait for ATR to get valid */
1576 if (wait_event_interruptible
1577 (dev->atrq,
1578 ((filp->f_flags & O_NONBLOCK)
1579 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags)
1580 != 0)))) {
1581 if (filp->f_flags & O_NONBLOCK)
1582 return -EAGAIN;
1583 return -ERESTARTSYS;
1584 }
1585 /* get IO lock */
1586 if (wait_event_interruptible
1587 (dev->ioq,
1588 ((filp->f_flags & O_NONBLOCK)
1589 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags)
1590 == 0)))) {
1591 if (filp->f_flags & O_NONBLOCK)
1592 return -EAGAIN;
1593 return -ERESTARTSYS;
1594 }
1595
1596 if ((rc = set_protocol(dev, &krnptsreq)) != 0) {
1597 /* auto power_on again */
1598 dev->mstate = M_FETCH_ATR;
1599 clear_bit(IS_ATR_VALID, &dev->flags);
1600 }
1601 /* release lock */
1602 clear_bit(LOCK_IO, &dev->flags);
1603 wake_up_interruptible(&dev->ioq);
1604
1605 }
1606 return rc;
1607 #ifdef PCMCIA_DEBUG
1608 case CM_IOSDBGLVL: /* set debug log level */
1609 {
1610 int old_pc_debug = 0;
1611
1612 old_pc_debug = pc_debug;
1613 if (copy_from_user(&pc_debug, argp, sizeof(int)))
1614 return -EFAULT;
1615
1616 if (old_pc_debug != pc_debug)
1617 DEBUGP(0, dev, "Changed debug log level "
1618 "to %i\n", pc_debug);
1619 }
1620 return rc;
1621 #endif
1622 default:
1623 DEBUGP(4, dev, "... in default (unknown IOCTL code)\n");
1624 return -EINVAL;
1625 }
1626 }
1627
1628 static int cmm_open(struct inode *inode, struct file *filp)
1629 {
1630 struct cm4000_dev *dev;
1631 struct pcmcia_device *link;
1632 int minor = iminor(inode);
1633
1634 if (minor >= CM4000_MAX_DEV)
1635 return -ENODEV;
1636
1637 link = dev_table[minor];
1638 if (link == NULL || !pcmcia_dev_present(link))
1639 return -ENODEV;
1640
1641 if (link->open)
1642 return -EBUSY;
1643
1644 dev = link->priv;
1645 filp->private_data = dev;
1646
1647 DEBUGP(2, dev, "-> cmm_open(device=%d.%d process=%s,%d)\n",
1648 imajor(inode), minor, current->comm, current->pid);
1649
1650 /* init device variables, they may be "polluted" after close
1651 * or, the device may never have been closed (i.e. open failed)
1652 */
1653
1654 ZERO_DEV(dev);
1655
1656 /* opening will always block since the
1657 * monitor will be started by open, which
1658 * means we have to wait for ATR becoming
1659 * vaild = block until valid (or card
1660 * inserted)
1661 */
1662 if (filp->f_flags & O_NONBLOCK)
1663 return -EAGAIN;
1664
1665 dev->mdelay = T_50MSEC;
1666
1667 /* start monitoring the cardstatus */
1668 start_monitor(dev);
1669
1670 link->open = 1; /* only one open per device */
1671
1672 DEBUGP(2, dev, "<- cmm_open\n");
1673 return nonseekable_open(inode, filp);
1674 }
1675
1676 static int cmm_close(struct inode *inode, struct file *filp)
1677 {
1678 struct cm4000_dev *dev;
1679 struct pcmcia_device *link;
1680 int minor = iminor(inode);
1681
1682 if (minor >= CM4000_MAX_DEV)
1683 return -ENODEV;
1684
1685 link = dev_table[minor];
1686 if (link == NULL)
1687 return -ENODEV;
1688
1689 dev = link->priv;
1690
1691 DEBUGP(2, dev, "-> cmm_close(maj/min=%d.%d)\n",
1692 imajor(inode), minor);
1693
1694 stop_monitor(dev);
1695
1696 ZERO_DEV(dev);
1697
1698 link->open = 0; /* only one open per device */
1699 wake_up(&dev->devq); /* socket removed? */
1700
1701 DEBUGP(2, dev, "cmm_close\n");
1702 return 0;
1703 }
1704
1705 static void cmm_cm4000_release(struct pcmcia_device * link)
1706 {
1707 struct cm4000_dev *dev = link->priv;
1708
1709 /* dont terminate the monitor, rather rely on
1710 * close doing that for us.
1711 */
1712 DEBUGP(3, dev, "-> cmm_cm4000_release\n");
1713 while (link->open) {
1714 printk(KERN_INFO MODULE_NAME ": delaying release until "
1715 "process has terminated\n");
1716 /* note: don't interrupt us:
1717 * close the applications which own
1718 * the devices _first_ !
1719 */
1720 wait_event(dev->devq, (link->open == 0));
1721 }
1722 /* dev->devq=NULL; this cannot be zeroed earlier */
1723 DEBUGP(3, dev, "<- cmm_cm4000_release\n");
1724 return;
1725 }
1726
1727 /*==== Interface to PCMCIA Layer =======================================*/
1728
1729 static int cm4000_config(struct pcmcia_device * link, int devno)
1730 {
1731 struct cm4000_dev *dev;
1732 tuple_t tuple;
1733 cisparse_t parse;
1734 u_char buf[64];
1735 int fail_fn, fail_rc;
1736 int rc;
1737
1738 /* read the config-tuples */
1739 tuple.Attributes = 0;
1740 tuple.TupleData = buf;
1741 tuple.TupleDataMax = sizeof(buf);
1742 tuple.TupleOffset = 0;
1743
1744 link->io.BasePort2 = 0;
1745 link->io.NumPorts2 = 0;
1746 link->io.Attributes2 = 0;
1747 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
1748 for (rc = pcmcia_get_first_tuple(link, &tuple);
1749 rc == CS_SUCCESS; rc = pcmcia_get_next_tuple(link, &tuple)) {
1750
1751 rc = pcmcia_get_tuple_data(link, &tuple);
1752 if (rc != CS_SUCCESS)
1753 continue;
1754 rc = pcmcia_parse_tuple(link, &tuple, &parse);
1755 if (rc != CS_SUCCESS)
1756 continue;
1757
1758 link->conf.ConfigIndex = parse.cftable_entry.index;
1759
1760 if (!parse.cftable_entry.io.nwin)
1761 continue;
1762
1763 /* Get the IOaddr */
1764 link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
1765 link->io.NumPorts1 = parse.cftable_entry.io.win[0].len;
1766 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
1767 if (!(parse.cftable_entry.io.flags & CISTPL_IO_8BIT))
1768 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
1769 if (!(parse.cftable_entry.io.flags & CISTPL_IO_16BIT))
1770 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
1771 link->io.IOAddrLines = parse.cftable_entry.io.flags
1772 & CISTPL_IO_LINES_MASK;
1773
1774 rc = pcmcia_request_io(link, &link->io);
1775 if (rc == CS_SUCCESS)
1776 break; /* we are done */
1777 }
1778 if (rc != CS_SUCCESS)
1779 goto cs_release;
1780
1781 link->conf.IntType = 00000002;
1782
1783 if ((fail_rc =
1784 pcmcia_request_configuration(link, &link->conf)) != CS_SUCCESS) {
1785 fail_fn = RequestConfiguration;
1786 goto cs_release;
1787 }
1788
1789 dev = link->priv;
1790 sprintf(dev->node.dev_name, DEVICE_NAME "%d", devno);
1791 dev->node.major = major;
1792 dev->node.minor = devno;
1793 dev->node.next = NULL;
1794 link->dev_node = &dev->node;
1795
1796 return 0;
1797
1798 cs_release:
1799 cm4000_release(link);
1800 return -ENODEV;
1801 }
1802
1803 static int cm4000_suspend(struct pcmcia_device *link)
1804 {
1805 struct cm4000_dev *dev;
1806
1807 dev = link->priv;
1808 stop_monitor(dev);
1809
1810 return 0;
1811 }
1812
1813 static int cm4000_resume(struct pcmcia_device *link)
1814 {
1815 struct cm4000_dev *dev;
1816
1817 dev = link->priv;
1818 if (link->open)
1819 start_monitor(dev);
1820
1821 return 0;
1822 }
1823
1824 static void cm4000_release(struct pcmcia_device *link)
1825 {
1826 cmm_cm4000_release(link); /* delay release until device closed */
1827 pcmcia_disable_device(link);
1828 }
1829
1830 static int cm4000_probe(struct pcmcia_device *link)
1831 {
1832 struct cm4000_dev *dev;
1833 int i, ret;
1834
1835 for (i = 0; i < CM4000_MAX_DEV; i++)
1836 if (dev_table[i] == NULL)
1837 break;
1838
1839 if (i == CM4000_MAX_DEV) {
1840 printk(KERN_NOTICE MODULE_NAME ": all devices in use\n");
1841 return -ENODEV;
1842 }
1843
1844 /* create a new cm4000_cs device */
1845 dev = kzalloc(sizeof(struct cm4000_dev), GFP_KERNEL);
1846 if (dev == NULL)
1847 return -ENOMEM;
1848
1849 dev->p_dev = link;
1850 link->priv = dev;
1851 link->conf.IntType = INT_MEMORY_AND_IO;
1852 dev_table[i] = link;
1853
1854 init_waitqueue_head(&dev->devq);
1855 init_waitqueue_head(&dev->ioq);
1856 init_waitqueue_head(&dev->atrq);
1857 init_waitqueue_head(&dev->readq);
1858
1859 ret = cm4000_config(link, i);
1860 if (ret) {
1861 dev_table[i] = NULL;
1862 kfree(dev);
1863 return ret;
1864 }
1865
1866 device_create(cmm_class, NULL, MKDEV(major, i), "cmm%d", i);
1867
1868 return 0;
1869 }
1870
1871 static void cm4000_detach(struct pcmcia_device *link)
1872 {
1873 struct cm4000_dev *dev = link->priv;
1874 int devno;
1875
1876 /* find device */
1877 for (devno = 0; devno < CM4000_MAX_DEV; devno++)
1878 if (dev_table[devno] == link)
1879 break;
1880 if (devno == CM4000_MAX_DEV)
1881 return;
1882
1883 stop_monitor(dev);
1884
1885 cm4000_release(link);
1886
1887 dev_table[devno] = NULL;
1888 kfree(dev);
1889
1890 device_destroy(cmm_class, MKDEV(major, devno));
1891
1892 return;
1893 }
1894
1895 static const struct file_operations cm4000_fops = {
1896 .owner = THIS_MODULE,
1897 .read = cmm_read,
1898 .write = cmm_write,
1899 .ioctl = cmm_ioctl,
1900 .open = cmm_open,
1901 .release= cmm_close,
1902 };
1903
1904 static struct pcmcia_device_id cm4000_ids[] = {
1905 PCMCIA_DEVICE_MANF_CARD(0x0223, 0x0002),
1906 PCMCIA_DEVICE_PROD_ID12("CardMan", "4000", 0x2FB368CA, 0xA2BD8C39),
1907 PCMCIA_DEVICE_NULL,
1908 };
1909 MODULE_DEVICE_TABLE(pcmcia, cm4000_ids);
1910
1911 static struct pcmcia_driver cm4000_driver = {
1912 .owner = THIS_MODULE,
1913 .drv = {
1914 .name = "cm4000_cs",
1915 },
1916 .probe = cm4000_probe,
1917 .remove = cm4000_detach,
1918 .suspend = cm4000_suspend,
1919 .resume = cm4000_resume,
1920 .id_table = cm4000_ids,
1921 };
1922
1923 static int __init cmm_init(void)
1924 {
1925 int rc;
1926
1927 printk(KERN_INFO "%s\n", version);
1928
1929 cmm_class = class_create(THIS_MODULE, "cardman_4000");
1930 if (IS_ERR(cmm_class))
1931 return PTR_ERR(cmm_class);
1932
1933 major = register_chrdev(0, DEVICE_NAME, &cm4000_fops);
1934 if (major < 0) {
1935 printk(KERN_WARNING MODULE_NAME
1936 ": could not get major number\n");
1937 class_destroy(cmm_class);
1938 return major;
1939 }
1940
1941 rc = pcmcia_register_driver(&cm4000_driver);
1942 if (rc < 0) {
1943 unregister_chrdev(major, DEVICE_NAME);
1944 class_destroy(cmm_class);
1945 return rc;
1946 }
1947
1948 return 0;
1949 }
1950
1951 static void __exit cmm_exit(void)
1952 {
1953 printk(KERN_INFO MODULE_NAME ": unloading\n");
1954 pcmcia_unregister_driver(&cm4000_driver);
1955 unregister_chrdev(major, DEVICE_NAME);
1956 class_destroy(cmm_class);
1957 };
1958
1959 module_init(cmm_init);
1960 module_exit(cmm_exit);
1961 MODULE_LICENSE("Dual BSD/GPL");
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree