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[PATCH] ipw2100: Fix a gcc compile warning
[linux-2.6/verdex.git] / drivers / char / pcmcia / cm4000_cs.c
blob649677b5dc36ad93a6badd5ee24f20301fb1b5b3
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 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 *
22 * All rights reserved. Licensed under dual BSD/GPL license.
23 */
24
25 /* #define PCMCIA_DEBUG 6 */
26
27 #include <linux/kernel.h>
28 #include <linux/module.h>
29 #include <linux/slab.h>
30 #include <linux/init.h>
31 #include <linux/fs.h>
32 #include <linux/delay.h>
33 #include <asm/uaccess.h>
34 #include <asm/io.h>
35
36 #include <pcmcia/cs_types.h>
37 #include <pcmcia/cs.h>
38 #include <pcmcia/cistpl.h>
39 #include <pcmcia/cisreg.h>
40 #include <pcmcia/ciscode.h>
41 #include <pcmcia/ds.h>
42
43 #include <linux/cm4000_cs.h>
44
45 /* #define ATR_CSUM */
46
47 #ifdef PCMCIA_DEBUG
48 #define reader_to_dev(x) (&handle_to_dev(x->link.handle))
49 static int pc_debug = PCMCIA_DEBUG;
50 module_param(pc_debug, int, 0600);
51 #define DEBUGP(n, rdr, x, args...) do { \
52 if (pc_debug >= (n)) \
53 dev_printk(KERN_DEBUG, reader_to_dev(rdr), "%s:" x, \
54 __FUNCTION__ , ## args); \
55 } while (0)
56 #else
57 #define DEBUGP(n, rdr, x, args...)
58 #endif
59 static char *version = "cm4000_cs.c v2.4.0gm5 - All bugs added by Harald Welte";
60
61 #define T_1SEC (HZ)
62 #define T_10MSEC msecs_to_jiffies(10)
63 #define T_20MSEC msecs_to_jiffies(20)
64 #define T_40MSEC msecs_to_jiffies(40)
65 #define T_50MSEC msecs_to_jiffies(50)
66 #define T_100MSEC msecs_to_jiffies(100)
67 #define T_500MSEC msecs_to_jiffies(500)
68
69 static void cm4000_release(dev_link_t *link);
70
71 static int major; /* major number we get from the kernel */
72
73 /* note: the first state has to have number 0 always */
74
75 #define M_FETCH_ATR 0
76 #define M_TIMEOUT_WAIT 1
77 #define M_READ_ATR_LEN 2
78 #define M_READ_ATR 3
79 #define M_ATR_PRESENT 4
80 #define M_BAD_CARD 5
81 #define M_CARDOFF 6
82
83 #define LOCK_IO 0
84 #define LOCK_MONITOR 1
85
86 #define IS_AUTOPPS_ACT 6
87 #define IS_PROCBYTE_PRESENT 7
88 #define IS_INVREV 8
89 #define IS_ANY_T0 9
90 #define IS_ANY_T1 10
91 #define IS_ATR_PRESENT 11
92 #define IS_ATR_VALID 12
93 #define IS_CMM_ABSENT 13
94 #define IS_BAD_LENGTH 14
95 #define IS_BAD_CSUM 15
96 #define IS_BAD_CARD 16
97
98 #define REG_FLAGS0(x) (x + 0)
99 #define REG_FLAGS1(x) (x + 1)
100 #define REG_NUM_BYTES(x) (x + 2)
101 #define REG_BUF_ADDR(x) (x + 3)
102 #define REG_BUF_DATA(x) (x + 4)
103 #define REG_NUM_SEND(x) (x + 5)
104 #define REG_BAUDRATE(x) (x + 6)
105 #define REG_STOPBITS(x) (x + 7)
106
107 struct cm4000_dev {
108 dev_link_t link; /* pcmcia link */
109 dev_node_t node; /* OS node (major,minor) */
110
111 unsigned char atr[MAX_ATR];
112 unsigned char rbuf[512];
113 unsigned char sbuf[512];
114
115 wait_queue_head_t devq; /* when removing cardman must not be
116 zeroed! */
117
118 wait_queue_head_t ioq; /* if IO is locked, wait on this Q */
119 wait_queue_head_t atrq; /* wait for ATR valid */
120 wait_queue_head_t readq; /* used by write to wake blk.read */
121
122 /* warning: do not move this fields.
123 * initialising to zero depends on it - see ZERO_DEV below. */
124 unsigned char atr_csum;
125 unsigned char atr_len_retry;
126 unsigned short atr_len;
127 unsigned short rlen; /* bytes avail. after write */
128 unsigned short rpos; /* latest read pos. write zeroes */
129 unsigned char procbyte; /* T=0 procedure byte */
130 unsigned char mstate; /* state of card monitor */
131 unsigned char cwarn; /* slow down warning */
132 unsigned char flags0; /* cardman IO-flags 0 */
133 unsigned char flags1; /* cardman IO-flags 1 */
134 unsigned int mdelay; /* variable monitor speeds, in jiffies */
135
136 unsigned int baudv; /* baud value for speed */
137 unsigned char ta1;
138 unsigned char proto; /* T=0, T=1, ... */
139 unsigned long flags; /* lock+flags (MONITOR,IO,ATR) * for concurrent
140 access */
141
142 unsigned char pts[4];
143
144 struct timer_list timer; /* used to keep monitor running */
145 int monitor_running;
146 };
147
148 #define ZERO_DEV(dev) \
149 memset(&dev->atr_csum,0, \
150 sizeof(struct cm4000_dev) - \
151 /*link*/ sizeof(dev_link_t) - \
152 /*node*/ sizeof(dev_node_t) - \
153 /*atr*/ MAX_ATR*sizeof(char) - \
154 /*rbuf*/ 512*sizeof(char) - \
155 /*sbuf*/ 512*sizeof(char) - \
156 /*queue*/ 4*sizeof(wait_queue_head_t))
157
158 static dev_link_t *dev_table[CM4000_MAX_DEV];
159
160 /* This table doesn't use spaces after the comma between fields and thus
161 * violates CodingStyle. However, I don't really think wrapping it around will
162 * make it any clearer to read -HW */
163 static unsigned char fi_di_table[10][14] = {
164 /*FI 00 01 02 03 04 05 06 07 08 09 10 11 12 13 */
165 /*DI */
166 /* 0 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11},
167 /* 1 */ {0x01,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x91,0x11,0x11,0x11,0x11},
168 /* 2 */ {0x02,0x12,0x22,0x32,0x11,0x11,0x11,0x11,0x11,0x92,0xA2,0xB2,0x11,0x11},
169 /* 3 */ {0x03,0x13,0x23,0x33,0x43,0x53,0x63,0x11,0x11,0x93,0xA3,0xB3,0xC3,0xD3},
170 /* 4 */ {0x04,0x14,0x24,0x34,0x44,0x54,0x64,0x11,0x11,0x94,0xA4,0xB4,0xC4,0xD4},
171 /* 5 */ {0x00,0x15,0x25,0x35,0x45,0x55,0x65,0x11,0x11,0x95,0xA5,0xB5,0xC5,0xD5},
172 /* 6 */ {0x06,0x16,0x26,0x36,0x46,0x56,0x66,0x11,0x11,0x96,0xA6,0xB6,0xC6,0xD6},
173 /* 7 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11},
174 /* 8 */ {0x08,0x11,0x28,0x38,0x48,0x58,0x68,0x11,0x11,0x98,0xA8,0xB8,0xC8,0xD8},
175 /* 9 */ {0x09,0x19,0x29,0x39,0x49,0x59,0x69,0x11,0x11,0x99,0xA9,0xB9,0xC9,0xD9}
176 };
177
178 #ifndef PCMCIA_DEBUG
179 #define xoutb outb
180 #define xinb inb
181 #else
182 static inline void xoutb(unsigned char val, unsigned short port)
183 {
184 if (pc_debug >= 7)
185 printk(KERN_DEBUG "outb(val=%.2x,port=%.4x)\n", val, port);
186 outb(val, port);
187 }
188 static inline unsigned char xinb(unsigned short port)
189 {
190 unsigned char val;
191
192 val = inb(port);
193 if (pc_debug >= 7)
194 printk(KERN_DEBUG "%.2x=inb(%.4x)\n", val, port);
195
196 return val;
197 }
198 #endif
199
200 #define b_0000 15
201 #define b_0001 14
202 #define b_0010 13
203 #define b_0011 12
204 #define b_0100 11
205 #define b_0101 10
206 #define b_0110 9
207 #define b_0111 8
208 #define b_1000 7
209 #define b_1001 6
210 #define b_1010 5
211 #define b_1011 4
212 #define b_1100 3
213 #define b_1101 2
214 #define b_1110 1
215 #define b_1111 0
216
217 static unsigned char irtab[16] = {
218 b_0000, b_1000, b_0100, b_1100,
219 b_0010, b_1010, b_0110, b_1110,
220 b_0001, b_1001, b_0101, b_1101,
221 b_0011, b_1011, b_0111, b_1111
222 };
223
224 static void str_invert_revert(unsigned char *b, int len)
225 {
226 int i;
227
228 for (i = 0; i < len; i++)
229 b[i] = (irtab[b[i] & 0x0f] << 4) | irtab[b[i] >> 4];
230 }
231
232 static unsigned char invert_revert(unsigned char ch)
233 {
234 return (irtab[ch & 0x0f] << 4) | irtab[ch >> 4];
235 }
236
237 #define ATRLENCK(dev,pos) \
238 if (pos>=dev->atr_len || pos>=MAX_ATR) \
239 goto return_0;
240
241 static unsigned int calc_baudv(unsigned char fidi)
242 {
243 unsigned int wcrcf, wbrcf, fi_rfu, di_rfu;
244
245 fi_rfu = 372;
246 di_rfu = 1;
247
248 /* FI */
249 switch ((fidi >> 4) & 0x0F) {
250 case 0x00:
251 wcrcf = 372;
252 break;
253 case 0x01:
254 wcrcf = 372;
255 break;
256 case 0x02:
257 wcrcf = 558;
258 break;
259 case 0x03:
260 wcrcf = 744;
261 break;
262 case 0x04:
263 wcrcf = 1116;
264 break;
265 case 0x05:
266 wcrcf = 1488;
267 break;
268 case 0x06:
269 wcrcf = 1860;
270 break;
271 case 0x07:
272 wcrcf = fi_rfu;
273 break;
274 case 0x08:
275 wcrcf = fi_rfu;
276 break;
277 case 0x09:
278 wcrcf = 512;
279 break;
280 case 0x0A:
281 wcrcf = 768;
282 break;
283 case 0x0B:
284 wcrcf = 1024;
285 break;
286 case 0x0C:
287 wcrcf = 1536;
288 break;
289 case 0x0D:
290 wcrcf = 2048;
291 break;
292 default:
293 wcrcf = fi_rfu;
294 break;
295 }
296
297 /* DI */
298 switch (fidi & 0x0F) {
299 case 0x00:
300 wbrcf = di_rfu;
301 break;
302 case 0x01:
303 wbrcf = 1;
304 break;
305 case 0x02:
306 wbrcf = 2;
307 break;
308 case 0x03:
309 wbrcf = 4;
310 break;
311 case 0x04:
312 wbrcf = 8;
313 break;
314 case 0x05:
315 wbrcf = 16;
316 break;
317 case 0x06:
318 wbrcf = 32;
319 break;
320 case 0x07:
321 wbrcf = di_rfu;
322 break;
323 case 0x08:
324 wbrcf = 12;
325 break;
326 case 0x09:
327 wbrcf = 20;
328 break;
329 default:
330 wbrcf = di_rfu;
331 break;
332 }
333
334 return (wcrcf / wbrcf);
335 }
336
337 static unsigned short io_read_num_rec_bytes(ioaddr_t iobase, unsigned short *s)
338 {
339 unsigned short tmp;
340
341 tmp = *s = 0;
342 do {
343 *s = tmp;
344 tmp = inb(REG_NUM_BYTES(iobase)) |
345 (inb(REG_FLAGS0(iobase)) & 4 ? 0x100 : 0);
346 } while (tmp != *s);
347
348 return *s;
349 }
350
351 static int parse_atr(struct cm4000_dev *dev)
352 {
353 unsigned char any_t1, any_t0;
354 unsigned char ch, ifno;
355 int ix, done;
356
357 DEBUGP(3, dev, "-> parse_atr: dev->atr_len = %i\n", dev->atr_len);
358
359 if (dev->atr_len < 3) {
360 DEBUGP(5, dev, "parse_atr: atr_len < 3\n");
361 return 0;
362 }
363
364 if (dev->atr[0] == 0x3f)
365 set_bit(IS_INVREV, &dev->flags);
366 else
367 clear_bit(IS_INVREV, &dev->flags);
368 ix = 1;
369 ifno = 1;
370 ch = dev->atr[1];
371 dev->proto = 0; /* XXX PROTO */
372 any_t1 = any_t0 = done = 0;
373 dev->ta1 = 0x11; /* defaults to 9600 baud */
374 do {
375 if (ifno == 1 && (ch & 0x10)) {
376 /* read first interface byte and TA1 is present */
377 dev->ta1 = dev->atr[2];
378 DEBUGP(5, dev, "Card says FiDi is 0x%.2x\n", dev->ta1);
379 ifno++;
380 } else if ((ifno == 2) && (ch & 0x10)) { /* TA(2) */
381 dev->ta1 = 0x11;
382 ifno++;
383 }
384
385 DEBUGP(5, dev, "Yi=%.2x\n", ch & 0xf0);
386 ix += ((ch & 0x10) >> 4) /* no of int.face chars */
387 +((ch & 0x20) >> 5)
388 + ((ch & 0x40) >> 6)
389 + ((ch & 0x80) >> 7);
390 /* ATRLENCK(dev,ix); */
391 if (ch & 0x80) { /* TDi */
392 ch = dev->atr[ix];
393 if ((ch & 0x0f)) {
394 any_t1 = 1;
395 DEBUGP(5, dev, "card is capable of T=1\n");
396 } else {
397 any_t0 = 1;
398 DEBUGP(5, dev, "card is capable of T=0\n");
399 }
400 } else
401 done = 1;
402 } while (!done);
403
404 DEBUGP(5, dev, "ix=%d noHist=%d any_t1=%d\n",
405 ix, dev->atr[1] & 15, any_t1);
406 if (ix + 1 + (dev->atr[1] & 0x0f) + any_t1 != dev->atr_len) {
407 DEBUGP(5, dev, "length error\n");
408 return 0;
409 }
410 if (any_t0)
411 set_bit(IS_ANY_T0, &dev->flags);
412
413 if (any_t1) { /* compute csum */
414 dev->atr_csum = 0;
415 #ifdef ATR_CSUM
416 for (i = 1; i < dev->atr_len; i++)
417 dev->atr_csum ^= dev->atr[i];
418 if (dev->atr_csum) {
419 set_bit(IS_BAD_CSUM, &dev->flags);
420 DEBUGP(5, dev, "bad checksum\n");
421 goto return_0;
422 }
423 #endif
424 if (any_t0 == 0)
425 dev->proto = 1; /* XXX PROTO */
426 set_bit(IS_ANY_T1, &dev->flags);
427 }
428
429 return 1;
430 }
431
432 struct card_fixup {
433 char atr[12];
434 u_int8_t atr_len;
435 u_int8_t stopbits;
436 };
437
438 static struct card_fixup card_fixups[] = {
439 { /* ACOS */
440 .atr = { 0x3b, 0xb3, 0x11, 0x00, 0x00, 0x41, 0x01 },
441 .atr_len = 7,
442 .stopbits = 0x03,
443 },
444 { /* Motorola */
445 .atr = {0x3b, 0x76, 0x13, 0x00, 0x00, 0x80, 0x62, 0x07,
446 0x41, 0x81, 0x81 },
447 .atr_len = 11,
448 .stopbits = 0x04,
449 },
450 };
451
452 static void set_cardparameter(struct cm4000_dev *dev)
453 {
454 int i;
455 ioaddr_t iobase = dev->link.io.BasePort1;
456 u_int8_t stopbits = 0x02; /* ISO default */
457
458 DEBUGP(3, dev, "-> set_cardparameter\n");
459
460 dev->flags1 = dev->flags1 | (((dev->baudv - 1) & 0x0100) >> 8);
461 xoutb(dev->flags1, REG_FLAGS1(iobase));
462 DEBUGP(5, dev, "flags1 = 0x%02x\n", dev->flags1);
463
464 /* set baudrate */
465 xoutb((unsigned char)((dev->baudv - 1) & 0xFF), REG_BAUDRATE(iobase));
466
467 DEBUGP(5, dev, "baudv = %i -> write 0x%02x\n", dev->baudv,
468 ((dev->baudv - 1) & 0xFF));
469
470 /* set stopbits */
471 for (i = 0; i < ARRAY_SIZE(card_fixups); i++) {
472 if (!memcmp(dev->atr, card_fixups[i].atr,
473 card_fixups[i].atr_len))
474 stopbits = card_fixups[i].stopbits;
475 }
476 xoutb(stopbits, REG_STOPBITS(iobase));
477
478 DEBUGP(3, dev, "<- set_cardparameter\n");
479 }
480
481 static int set_protocol(struct cm4000_dev *dev, struct ptsreq *ptsreq)
482 {
483
484 unsigned long tmp, i;
485 unsigned short num_bytes_read;
486 unsigned char pts_reply[4];
487 ssize_t rc;
488 ioaddr_t iobase = dev->link.io.BasePort1;
489
490 rc = 0;
491
492 DEBUGP(3, dev, "-> set_protocol\n");
493 DEBUGP(5, dev, "ptsreq->Protocol = 0x%.8x, ptsreq->Flags=0x%.8x, "
494 "ptsreq->pts1=0x%.2x, ptsreq->pts2=0x%.2x, "
495 "ptsreq->pts3=0x%.2x\n", (unsigned int)ptsreq->protocol,
496 (unsigned int)ptsreq->flags, ptsreq->pts1, ptsreq->pts2,
497 ptsreq->pts3);
498
499 /* Fill PTS structure */
500 dev->pts[0] = 0xff;
501 dev->pts[1] = 0x00;
502 tmp = ptsreq->protocol;
503 while ((tmp = (tmp >> 1)) > 0)
504 dev->pts[1]++;
505 dev->proto = dev->pts[1]; /* Set new protocol */
506 dev->pts[1] = (0x01 << 4) | (dev->pts[1]);
507
508 /* Correct Fi/Di according to CM4000 Fi/Di table */
509 DEBUGP(5, dev, "Ta(1) from ATR is 0x%.2x\n", dev->ta1);
510 /* set Fi/Di according to ATR TA(1) */
511 dev->pts[2] = fi_di_table[dev->ta1 & 0x0F][(dev->ta1 >> 4) & 0x0F];
512
513 /* Calculate PCK character */
514 dev->pts[3] = dev->pts[0] ^ dev->pts[1] ^ dev->pts[2];
515
516 DEBUGP(5, dev, "pts0=%.2x, pts1=%.2x, pts2=%.2x, pts3=%.2x\n",
517 dev->pts[0], dev->pts[1], dev->pts[2], dev->pts[3]);
518
519 /* check card convention */
520 if (test_bit(IS_INVREV, &dev->flags))
521 str_invert_revert(dev->pts, 4);
522
523 /* reset SM */
524 xoutb(0x80, REG_FLAGS0(iobase));
525
526 /* Enable access to the message buffer */
527 DEBUGP(5, dev, "Enable access to the messages buffer\n");
528 dev->flags1 = 0x20 /* T_Active */
529 | (test_bit(IS_INVREV, &dev->flags) ? 0x02 : 0x00) /* inv parity */
530 | ((dev->baudv >> 8) & 0x01); /* MSB-baud */
531 xoutb(dev->flags1, REG_FLAGS1(iobase));
532
533 DEBUGP(5, dev, "Enable message buffer -> flags1 = 0x%.2x\n",
534 dev->flags1);
535
536 /* write challenge to the buffer */
537 DEBUGP(5, dev, "Write challenge to buffer: ");
538 for (i = 0; i < 4; i++) {
539 xoutb(i, REG_BUF_ADDR(iobase));
540 xoutb(dev->pts[i], REG_BUF_DATA(iobase)); /* buf data */
541 #ifdef PCMCIA_DEBUG
542 if (pc_debug >= 5)
543 printk("0x%.2x ", dev->pts[i]);
544 }
545 if (pc_debug >= 5)
546 printk("\n");
547 #else
548 }
549 #endif
550
551 /* set number of bytes to write */
552 DEBUGP(5, dev, "Set number of bytes to write\n");
553 xoutb(0x04, REG_NUM_SEND(iobase));
554
555 /* Trigger CARDMAN CONTROLLER */
556 xoutb(0x50, REG_FLAGS0(iobase));
557
558 /* Monitor progress */
559 /* wait for xmit done */
560 DEBUGP(5, dev, "Waiting for NumRecBytes getting valid\n");
561
562 for (i = 0; i < 100; i++) {
563 if (inb(REG_FLAGS0(iobase)) & 0x08) {
564 DEBUGP(5, dev, "NumRecBytes is valid\n");
565 break;
566 }
567 mdelay(10);
568 }
569 if (i == 100) {
570 DEBUGP(5, dev, "Timeout waiting for NumRecBytes getting "
571 "valid\n");
572 rc = -EIO;
573 goto exit_setprotocol;
574 }
575
576 DEBUGP(5, dev, "Reading NumRecBytes\n");
577 for (i = 0; i < 100; i++) {
578 io_read_num_rec_bytes(iobase, &num_bytes_read);
579 if (num_bytes_read >= 4) {
580 DEBUGP(2, dev, "NumRecBytes = %i\n", num_bytes_read);
581 break;
582 }
583 mdelay(10);
584 }
585
586 /* check whether it is a short PTS reply? */
587 if (num_bytes_read == 3)
588 i = 0;
589
590 if (i == 100) {
591 DEBUGP(5, dev, "Timeout reading num_bytes_read\n");
592 rc = -EIO;
593 goto exit_setprotocol;
594 }
595
596 DEBUGP(5, dev, "Reset the CARDMAN CONTROLLER\n");
597 xoutb(0x80, REG_FLAGS0(iobase));
598
599 /* Read PPS reply */
600 DEBUGP(5, dev, "Read PPS reply\n");
601 for (i = 0; i < num_bytes_read; i++) {
602 xoutb(i, REG_BUF_ADDR(iobase));
603 pts_reply[i] = inb(REG_BUF_DATA(iobase));
604 }
605
606 #ifdef PCMCIA_DEBUG
607 DEBUGP(2, dev, "PTSreply: ");
608 for (i = 0; i < num_bytes_read; i++) {
609 if (pc_debug >= 5)
610 printk("0x%.2x ", pts_reply[i]);
611 }
612 printk("\n");
613 #endif /* PCMCIA_DEBUG */
614
615 DEBUGP(5, dev, "Clear Tactive in Flags1\n");
616 xoutb(0x20, REG_FLAGS1(iobase));
617
618 /* Compare ptsreq and ptsreply */
619 if ((dev->pts[0] == pts_reply[0]) &&
620 (dev->pts[1] == pts_reply[1]) &&
621 (dev->pts[2] == pts_reply[2]) && (dev->pts[3] == pts_reply[3])) {
622 /* setcardparameter according to PPS */
623 dev->baudv = calc_baudv(dev->pts[2]);
624 set_cardparameter(dev);
625 } else if ((dev->pts[0] == pts_reply[0]) &&
626 ((dev->pts[1] & 0xef) == pts_reply[1]) &&
627 ((pts_reply[0] ^ pts_reply[1]) == pts_reply[2])) {
628 /* short PTS reply, set card parameter to default values */
629 dev->baudv = calc_baudv(0x11);
630 set_cardparameter(dev);
631 } else
632 rc = -EIO;
633
634 exit_setprotocol:
635 DEBUGP(3, dev, "<- set_protocol\n");
636 return rc;
637 }
638
639 static int io_detect_cm4000(ioaddr_t iobase, struct cm4000_dev *dev)
640 {
641
642 /* note: statemachine is assumed to be reset */
643 if (inb(REG_FLAGS0(iobase)) & 8) {
644 clear_bit(IS_ATR_VALID, &dev->flags);
645 set_bit(IS_CMM_ABSENT, &dev->flags);
646 return 0; /* detect CMM = 1 -> failure */
647 }
648 /* xoutb(0x40, REG_FLAGS1(iobase)); detectCMM */
649 xoutb(dev->flags1 | 0x40, REG_FLAGS1(iobase));
650 if ((inb(REG_FLAGS0(iobase)) & 8) == 0) {
651 clear_bit(IS_ATR_VALID, &dev->flags);
652 set_bit(IS_CMM_ABSENT, &dev->flags);
653 return 0; /* detect CMM=0 -> failure */
654 }
655 /* clear detectCMM again by restoring original flags1 */
656 xoutb(dev->flags1, REG_FLAGS1(iobase));
657 return 1;
658 }
659
660 static void terminate_monitor(struct cm4000_dev *dev)
661 {
662
663 /* tell the monitor to stop and wait until
664 * it terminates.
665 */
666 DEBUGP(3, dev, "-> terminate_monitor\n");
667 wait_event_interruptible(dev->devq,
668 test_and_set_bit(LOCK_MONITOR,
669 (void *)&dev->flags));
670
671 /* now, LOCK_MONITOR has been set.
672 * allow a last cycle in the monitor.
673 * the monitor will indicate that it has
674 * finished by clearing this bit.
675 */
676 DEBUGP(5, dev, "Now allow last cycle of monitor!\n");
677 while (test_bit(LOCK_MONITOR, (void *)&dev->flags))
678 msleep(25);
679
680 DEBUGP(5, dev, "Delete timer\n");
681 del_timer_sync(&dev->timer);
682 #ifdef PCMCIA_DEBUG
683 dev->monitor_running = 0;
684 #endif
685
686 DEBUGP(3, dev, "<- terminate_monitor\n");
687 }
688
689 /*
690 * monitor the card every 50msec. as a side-effect, retrieve the
691 * atr once a card is inserted. another side-effect of retrieving the
692 * atr is that the card will be powered on, so there is no need to
693 * power on the card explictely from the application: the driver
694 * is already doing that for you.
695 */
696
697 static void monitor_card(unsigned long p)
698 {
699 struct cm4000_dev *dev = (struct cm4000_dev *) p;
700 ioaddr_t iobase = dev->link.io.BasePort1;
701 unsigned short s;
702 struct ptsreq ptsreq;
703 int i, atrc;
704
705 DEBUGP(7, dev, "-> monitor_card\n");
706
707 /* if someone has set the lock for us: we're done! */
708 if (test_and_set_bit(LOCK_MONITOR, &dev->flags)) {
709 DEBUGP(4, dev, "About to stop monitor\n");
710 /* no */
711 dev->rlen =
712 dev->rpos =
713 dev->atr_csum = dev->atr_len_retry = dev->cwarn = 0;
714 dev->mstate = M_FETCH_ATR;
715 clear_bit(LOCK_MONITOR, &dev->flags);
716 /* close et al. are sleeping on devq, so wake it */
717 wake_up_interruptible(&dev->devq);
718 DEBUGP(2, dev, "<- monitor_card (we are done now)\n");
719 return;
720 }
721
722 /* try to lock io: if it is already locked, just add another timer */
723 if (test_and_set_bit(LOCK_IO, (void *)&dev->flags)) {
724 DEBUGP(4, dev, "Couldn't get IO lock\n");
725 goto return_with_timer;
726 }
727
728 /* is a card/a reader inserted at all ? */
729 dev->flags0 = xinb(REG_FLAGS0(iobase));
730 DEBUGP(7, dev, "dev->flags0 = 0x%2x\n", dev->flags0);
731 DEBUGP(7, dev, "smartcard present: %s\n",
732 dev->flags0 & 1 ? "yes" : "no");
733 DEBUGP(7, dev, "cardman present: %s\n",
734 dev->flags0 == 0xff ? "no" : "yes");
735
736 if ((dev->flags0 & 1) == 0 /* no smartcard inserted */
737 || dev->flags0 == 0xff) { /* no cardman inserted */
738 /* no */
739 dev->rlen =
740 dev->rpos =
741 dev->atr_csum = dev->atr_len_retry = dev->cwarn = 0;
742 dev->mstate = M_FETCH_ATR;
743
744 dev->flags &= 0x000000ff; /* only keep IO and MONITOR locks */
745
746 if (dev->flags0 == 0xff) {
747 DEBUGP(4, dev, "set IS_CMM_ABSENT bit\n");
748 set_bit(IS_CMM_ABSENT, &dev->flags);
749 } else if (test_bit(IS_CMM_ABSENT, &dev->flags)) {
750 DEBUGP(4, dev, "clear IS_CMM_ABSENT bit "
751 "(card is removed)\n");
752 clear_bit(IS_CMM_ABSENT, &dev->flags);
753 }
754
755 goto release_io;
756 } else if ((dev->flags0 & 1) && test_bit(IS_CMM_ABSENT, &dev->flags)) {
757 /* cardman and card present but cardman was absent before
758 * (after suspend with inserted card) */
759 DEBUGP(4, dev, "clear IS_CMM_ABSENT bit (card is inserted)\n");
760 clear_bit(IS_CMM_ABSENT, &dev->flags);
761 }
762
763 if (test_bit(IS_ATR_VALID, &dev->flags) == 1) {
764 DEBUGP(7, dev, "believe ATR is already valid (do nothing)\n");
765 goto release_io;
766 }
767
768 switch (dev->mstate) {
769 unsigned char flags0;
770 case M_CARDOFF:
771 DEBUGP(4, dev, "M_CARDOFF\n");
772 flags0 = inb(REG_FLAGS0(iobase));
773 if (flags0 & 0x02) {
774 /* wait until Flags0 indicate power is off */
775 dev->mdelay = T_10MSEC;
776 } else {
777 /* Flags0 indicate power off and no card inserted now;
778 * Reset CARDMAN CONTROLLER */
779 xoutb(0x80, REG_FLAGS0(iobase));
780
781 /* prepare for fetching ATR again: after card off ATR
782 * is read again automatically */
783 dev->rlen =
784 dev->rpos =
785 dev->atr_csum =
786 dev->atr_len_retry = dev->cwarn = 0;
787 dev->mstate = M_FETCH_ATR;
788
789 /* minimal gap between CARDOFF and read ATR is 50msec */
790 dev->mdelay = T_50MSEC;
791 }
792 break;
793 case M_FETCH_ATR:
794 DEBUGP(4, dev, "M_FETCH_ATR\n");
795 xoutb(0x80, REG_FLAGS0(iobase));
796 DEBUGP(4, dev, "Reset BAUDV to 9600\n");
797 dev->baudv = 0x173; /* 9600 */
798 xoutb(0x02, REG_STOPBITS(iobase)); /* stopbits=2 */
799 xoutb(0x73, REG_BAUDRATE(iobase)); /* baud value */
800 xoutb(0x21, REG_FLAGS1(iobase)); /* T_Active=1, baud
801 value */
802 /* warm start vs. power on: */
803 xoutb(dev->flags0 & 2 ? 0x46 : 0x44, REG_FLAGS0(iobase));
804 dev->mdelay = T_40MSEC;
805 dev->mstate = M_TIMEOUT_WAIT;
806 break;
807 case M_TIMEOUT_WAIT:
808 DEBUGP(4, dev, "M_TIMEOUT_WAIT\n");
809 /* numRecBytes */
810 io_read_num_rec_bytes(iobase, &dev->atr_len);
811 dev->mdelay = T_10MSEC;
812 dev->mstate = M_READ_ATR_LEN;
813 break;
814 case M_READ_ATR_LEN:
815 DEBUGP(4, dev, "M_READ_ATR_LEN\n");
816 /* infinite loop possible, since there is no timeout */
817
818 #define MAX_ATR_LEN_RETRY 100
819
820 if (dev->atr_len == io_read_num_rec_bytes(iobase, &s)) {
821 if (dev->atr_len_retry++ >= MAX_ATR_LEN_RETRY) { /* + XX msec */
822 dev->mdelay = T_10MSEC;
823 dev->mstate = M_READ_ATR;
824 }
825 } else {
826 dev->atr_len = s;
827 dev->atr_len_retry = 0; /* set new timeout */
828 }
829
830 DEBUGP(4, dev, "Current ATR_LEN = %i\n", dev->atr_len);
831 break;
832 case M_READ_ATR:
833 DEBUGP(4, dev, "M_READ_ATR\n");
834 xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */
835 for (i = 0; i < dev->atr_len; i++) {
836 xoutb(i, REG_BUF_ADDR(iobase));
837 dev->atr[i] = inb(REG_BUF_DATA(iobase));
838 }
839 /* Deactivate T_Active flags */
840 DEBUGP(4, dev, "Deactivate T_Active flags\n");
841 dev->flags1 = 0x01;
842 xoutb(dev->flags1, REG_FLAGS1(iobase));
843
844 /* atr is present (which doesnt mean it's valid) */
845 set_bit(IS_ATR_PRESENT, &dev->flags);
846 if (dev->atr[0] == 0x03)
847 str_invert_revert(dev->atr, dev->atr_len);
848 atrc = parse_atr(dev);
849 if (atrc == 0) { /* atr invalid */
850 dev->mdelay = 0;
851 dev->mstate = M_BAD_CARD;
852 } else {
853 dev->mdelay = T_50MSEC;
854 dev->mstate = M_ATR_PRESENT;
855 set_bit(IS_ATR_VALID, &dev->flags);
856 }
857
858 if (test_bit(IS_ATR_VALID, &dev->flags) == 1) {
859 DEBUGP(4, dev, "monitor_card: ATR valid\n");
860 /* if ta1 == 0x11, no PPS necessary (default values) */
861 /* do not do PPS with multi protocol cards */
862 if ((test_bit(IS_AUTOPPS_ACT, &dev->flags) == 0) &&
863 (dev->ta1 != 0x11) &&
864 !(test_bit(IS_ANY_T0, &dev->flags) &&
865 test_bit(IS_ANY_T1, &dev->flags))) {
866 DEBUGP(4, dev, "Perform AUTOPPS\n");
867 set_bit(IS_AUTOPPS_ACT, &dev->flags);
868 ptsreq.protocol = ptsreq.protocol =
869 (0x01 << dev->proto);
870 ptsreq.flags = 0x01;
871 ptsreq.pts1 = 0x00;
872 ptsreq.pts2 = 0x00;
873 ptsreq.pts3 = 0x00;
874 if (set_protocol(dev, &ptsreq) == 0) {
875 DEBUGP(4, dev, "AUTOPPS ret SUCC\n");
876 clear_bit(IS_AUTOPPS_ACT, &dev->flags);
877 wake_up_interruptible(&dev->atrq);
878 } else {
879 DEBUGP(4, dev, "AUTOPPS failed: "
880 "repower using defaults\n");
881 /* prepare for repowering */
882 clear_bit(IS_ATR_PRESENT, &dev->flags);
883 clear_bit(IS_ATR_VALID, &dev->flags);
884 dev->rlen =
885 dev->rpos =
886 dev->atr_csum =
887 dev->atr_len_retry = dev->cwarn = 0;
888 dev->mstate = M_FETCH_ATR;
889
890 dev->mdelay = T_50MSEC;
891 }
892 } else {
893 /* for cards which use slightly different
894 * params (extra guard time) */
895 set_cardparameter(dev);
896 if (test_bit(IS_AUTOPPS_ACT, &dev->flags) == 1)
897 DEBUGP(4, dev, "AUTOPPS already active "
898 "2nd try:use default values\n");
899 if (dev->ta1 == 0x11)
900 DEBUGP(4, dev, "No AUTOPPS necessary "
901 "TA(1)==0x11\n");
902 if (test_bit(IS_ANY_T0, &dev->flags)
903 && test_bit(IS_ANY_T1, &dev->flags))
904 DEBUGP(4, dev, "Do NOT perform AUTOPPS "
905 "with multiprotocol cards\n");
906 clear_bit(IS_AUTOPPS_ACT, &dev->flags);
907 wake_up_interruptible(&dev->atrq);
908 }
909 } else {
910 DEBUGP(4, dev, "ATR invalid\n");
911 wake_up_interruptible(&dev->atrq);
912 }
913 break;
914 case M_BAD_CARD:
915 DEBUGP(4, dev, "M_BAD_CARD\n");
916 /* slow down warning, but prompt immediately after insertion */
917 if (dev->cwarn == 0 || dev->cwarn == 10) {
918 set_bit(IS_BAD_CARD, &dev->flags);
919 printk(KERN_WARNING MODULE_NAME ": device %s: ",
920 dev->node.dev_name);
921 if (test_bit(IS_BAD_CSUM, &dev->flags)) {
922 DEBUGP(4, dev, "ATR checksum (0x%.2x, should "
923 "be zero) failed\n", dev->atr_csum);
924 }
925 #ifdef PCMCIA_DEBUG
926 else if (test_bit(IS_BAD_LENGTH, &dev->flags)) {
927 DEBUGP(4, dev, "ATR length error\n");
928 } else {
929 DEBUGP(4, dev, "card damaged or wrong way "
930 "inserted\n");
931 }
932 #endif
933 dev->cwarn = 0;
934 wake_up_interruptible(&dev->atrq); /* wake open */
935 }
936 dev->cwarn++;
937 dev->mdelay = T_100MSEC;
938 dev->mstate = M_FETCH_ATR;
939 break;
940 default:
941 DEBUGP(7, dev, "Unknown action\n");
942 break; /* nothing */
943 }
944
945 release_io:
946 DEBUGP(7, dev, "release_io\n");
947 clear_bit(LOCK_IO, &dev->flags);
948 wake_up_interruptible(&dev->ioq); /* whoever needs IO */
949
950 return_with_timer:
951 DEBUGP(7, dev, "<- monitor_card (returns with timer)\n");
952 dev->timer.expires = jiffies + dev->mdelay;
953 add_timer(&dev->timer);
954 clear_bit(LOCK_MONITOR, &dev->flags);
955 }
956
957 /* Interface to userland (file_operations) */
958
959 static ssize_t cmm_read(struct file *filp, __user char *buf, size_t count,
960 loff_t *ppos)
961 {
962 struct cm4000_dev *dev = filp->private_data;
963 ioaddr_t iobase = dev->link.io.BasePort1;
964 ssize_t rc;
965 int i, j, k;
966
967 DEBUGP(2, dev, "-> cmm_read(%s,%d)\n", current->comm, current->pid);
968
969 if (count == 0) /* according to manpage */
970 return 0;
971
972 if ((dev->link.state & DEV_PRESENT) == 0 || /* socket removed */
973 test_bit(IS_CMM_ABSENT, &dev->flags))
974 return -ENODEV;
975
976 if (test_bit(IS_BAD_CSUM, &dev->flags))
977 return -EIO;
978
979 /* also see the note about this in cmm_write */
980 if (wait_event_interruptible
981 (dev->atrq,
982 ((filp->f_flags & O_NONBLOCK)
983 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) {
984 if (filp->f_flags & O_NONBLOCK)
985 return -EAGAIN;
986 return -ERESTARTSYS;
987 }
988
989 if (test_bit(IS_ATR_VALID, &dev->flags) == 0)
990 return -EIO;
991
992 /* this one implements blocking IO */
993 if (wait_event_interruptible
994 (dev->readq,
995 ((filp->f_flags & O_NONBLOCK) || (dev->rpos < dev->rlen)))) {
996 if (filp->f_flags & O_NONBLOCK)
997 return -EAGAIN;
998 return -ERESTARTSYS;
999 }
1000
1001 /* lock io */
1002 if (wait_event_interruptible
1003 (dev->ioq,
1004 ((filp->f_flags & O_NONBLOCK)
1005 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) {
1006 if (filp->f_flags & O_NONBLOCK)
1007 return -EAGAIN;
1008 return -ERESTARTSYS;
1009 }
1010
1011 rc = 0;
1012 dev->flags0 = inb(REG_FLAGS0(iobase));
1013 if ((dev->flags0 & 1) == 0 /* no smartcard inserted */
1014 || dev->flags0 == 0xff) { /* no cardman inserted */
1015 clear_bit(IS_ATR_VALID, &dev->flags);
1016 if (dev->flags0 & 1) {
1017 set_bit(IS_CMM_ABSENT, &dev->flags);
1018 rc = -ENODEV;
1019 }
1020 rc = -EIO;
1021 goto release_io;
1022 }
1023
1024 DEBUGP(4, dev, "begin read answer\n");
1025 j = min(count, (size_t)(dev->rlen - dev->rpos));
1026 k = dev->rpos;
1027 if (k + j > 255)
1028 j = 256 - k;
1029 DEBUGP(4, dev, "read1 j=%d\n", j);
1030 for (i = 0; i < j; i++) {
1031 xoutb(k++, REG_BUF_ADDR(iobase));
1032 dev->rbuf[i] = xinb(REG_BUF_DATA(iobase));
1033 }
1034 j = min(count, (size_t)(dev->rlen - dev->rpos));
1035 if (k + j > 255) {
1036 DEBUGP(4, dev, "read2 j=%d\n", j);
1037 dev->flags1 |= 0x10; /* MSB buf addr set */
1038 xoutb(dev->flags1, REG_FLAGS1(iobase));
1039 for (; i < j; i++) {
1040 xoutb(k++, REG_BUF_ADDR(iobase));
1041 dev->rbuf[i] = xinb(REG_BUF_DATA(iobase));
1042 }
1043 }
1044
1045 if (dev->proto == 0 && count > dev->rlen - dev->rpos) {
1046 DEBUGP(4, dev, "T=0 and count > buffer\n");
1047 dev->rbuf[i] = dev->rbuf[i - 1];
1048 dev->rbuf[i - 1] = dev->procbyte;
1049 j++;
1050 }
1051 count = j;
1052
1053 dev->rpos = dev->rlen + 1;
1054
1055 /* Clear T1Active */
1056 DEBUGP(4, dev, "Clear T1Active\n");
1057 dev->flags1 &= 0xdf;
1058 xoutb(dev->flags1, REG_FLAGS1(iobase));
1059
1060 xoutb(0, REG_FLAGS1(iobase)); /* clear detectCMM */
1061 /* last check before exit */
1062 if (!io_detect_cm4000(iobase, dev))
1063 count = -ENODEV;
1064
1065 if (test_bit(IS_INVREV, &dev->flags) && count > 0)
1066 str_invert_revert(dev->rbuf, count);
1067
1068 if (copy_to_user(buf, dev->rbuf, count))
1069 return -EFAULT;
1070
1071 release_io:
1072 clear_bit(LOCK_IO, &dev->flags);
1073 wake_up_interruptible(&dev->ioq);
1074
1075 DEBUGP(2, dev, "<- cmm_read returns: rc = %Zi\n",
1076 (rc < 0 ? rc : count));
1077 return rc < 0 ? rc : count;
1078 }
1079
1080 static ssize_t cmm_write(struct file *filp, const char __user *buf,
1081 size_t count, loff_t *ppos)
1082 {
1083 struct cm4000_dev *dev = (struct cm4000_dev *) filp->private_data;
1084 ioaddr_t iobase = dev->link.io.BasePort1;
1085 unsigned short s;
1086 unsigned char tmp;
1087 unsigned char infolen;
1088 unsigned char sendT0;
1089 unsigned short nsend;
1090 unsigned short nr;
1091 ssize_t rc;
1092 int i;
1093
1094 DEBUGP(2, dev, "-> cmm_write(%s,%d)\n", current->comm, current->pid);
1095
1096 if (count == 0) /* according to manpage */
1097 return 0;
1098
1099 if (dev->proto == 0 && count < 4) {
1100 /* T0 must have at least 4 bytes */
1101 DEBUGP(4, dev, "T0 short write\n");
1102 return -EIO;
1103 }
1104
1105 nr = count & 0x1ff; /* max bytes to write */
1106
1107 sendT0 = dev->proto ? 0 : nr > 5 ? 0x08 : 0;
1108
1109 if ((dev->link.state & DEV_PRESENT) == 0 || /* socket removed */
1110 test_bit(IS_CMM_ABSENT, &dev->flags))
1111 return -ENODEV;
1112
1113 if (test_bit(IS_BAD_CSUM, &dev->flags)) {
1114 DEBUGP(4, dev, "bad csum\n");
1115 return -EIO;
1116 }
1117
1118 /*
1119 * wait for atr to become valid.
1120 * note: it is important to lock this code. if we dont, the monitor
1121 * could be run between test_bit and the the call the sleep on the
1122 * atr-queue. if *then* the monitor detects atr valid, it will wake up
1123 * any process on the atr-queue, *but* since we have been interrupted,
1124 * we do not yet sleep on this queue. this would result in a missed
1125 * wake_up and the calling process would sleep forever (until
1126 * interrupted). also, do *not* restore_flags before sleep_on, because
1127 * this could result in the same situation!
1128 */
1129 if (wait_event_interruptible
1130 (dev->atrq,
1131 ((filp->f_flags & O_NONBLOCK)
1132 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) {
1133 if (filp->f_flags & O_NONBLOCK)
1134 return -EAGAIN;
1135 return -ERESTARTSYS;
1136 }
1137
1138 if (test_bit(IS_ATR_VALID, &dev->flags) == 0) { /* invalid atr */
1139 DEBUGP(4, dev, "invalid ATR\n");
1140 return -EIO;
1141 }
1142
1143 /* lock io */
1144 if (wait_event_interruptible
1145 (dev->ioq,
1146 ((filp->f_flags & O_NONBLOCK)
1147 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) {
1148 if (filp->f_flags & O_NONBLOCK)
1149 return -EAGAIN;
1150 return -ERESTARTSYS;
1151 }
1152
1153 if (copy_from_user(dev->sbuf, buf, ((count > 512) ? 512 : count)))
1154 return -EFAULT;
1155
1156 rc = 0;
1157 dev->flags0 = inb(REG_FLAGS0(iobase));
1158 if ((dev->flags0 & 1) == 0 /* no smartcard inserted */
1159 || dev->flags0 == 0xff) { /* no cardman inserted */
1160 clear_bit(IS_ATR_VALID, &dev->flags);
1161 if (dev->flags0 & 1) {
1162 set_bit(IS_CMM_ABSENT, &dev->flags);
1163 rc = -ENODEV;
1164 } else {
1165 DEBUGP(4, dev, "IO error\n");
1166 rc = -EIO;
1167 }
1168 goto release_io;
1169 }
1170
1171 xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */
1172
1173 if (!io_detect_cm4000(iobase, dev)) {
1174 rc = -ENODEV;
1175 goto release_io;
1176 }
1177
1178 /* reflect T=0 send/read mode in flags1 */
1179 dev->flags1 |= (sendT0);
1180
1181 set_cardparameter(dev);
1182
1183 /* dummy read, reset flag procedure received */
1184 tmp = inb(REG_FLAGS1(iobase));
1185
1186 dev->flags1 = 0x20 /* T_Active */
1187 | (sendT0)
1188 | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0)/* inverse parity */
1189 | (((dev->baudv - 1) & 0x0100) >> 8); /* MSB-Baud */
1190 DEBUGP(1, dev, "set dev->flags1 = 0x%.2x\n", dev->flags1);
1191 xoutb(dev->flags1, REG_FLAGS1(iobase));
1192
1193 /* xmit data */
1194 DEBUGP(4, dev, "Xmit data\n");
1195 for (i = 0; i < nr; i++) {
1196 if (i >= 256) {
1197 dev->flags1 = 0x20 /* T_Active */
1198 | (sendT0) /* SendT0 */
1199 /* inverse parity: */
1200 | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0)
1201 | (((dev->baudv - 1) & 0x0100) >> 8) /* MSB-Baud */
1202 | 0x10; /* set address high */
1203 DEBUGP(4, dev, "dev->flags = 0x%.2x - set address "
1204 "high\n", dev->flags1);
1205 xoutb(dev->flags1, REG_FLAGS1(iobase));
1206 }
1207 if (test_bit(IS_INVREV, &dev->flags)) {
1208 DEBUGP(4, dev, "Apply inverse convention for 0x%.2x "
1209 "-> 0x%.2x\n", (unsigned char)dev->sbuf[i],
1210 invert_revert(dev->sbuf[i]));
1211 xoutb(i, REG_BUF_ADDR(iobase));
1212 xoutb(invert_revert(dev->sbuf[i]),
1213 REG_BUF_DATA(iobase));
1214 } else {
1215 xoutb(i, REG_BUF_ADDR(iobase));
1216 xoutb(dev->sbuf[i], REG_BUF_DATA(iobase));
1217 }
1218 }
1219 DEBUGP(4, dev, "Xmit done\n");
1220
1221 if (dev->proto == 0) {
1222 /* T=0 proto: 0 byte reply */
1223 if (nr == 4) {
1224 DEBUGP(4, dev, "T=0 assumes 0 byte reply\n");
1225 xoutb(i, REG_BUF_ADDR(iobase));
1226 if (test_bit(IS_INVREV, &dev->flags))
1227 xoutb(0xff, REG_BUF_DATA(iobase));
1228 else
1229 xoutb(0x00, REG_BUF_DATA(iobase));
1230 }
1231
1232 /* numSendBytes */
1233 if (sendT0)
1234 nsend = nr;
1235 else {
1236 if (nr == 4)
1237 nsend = 5;
1238 else {
1239 nsend = 5 + (unsigned char)dev->sbuf[4];
1240 if (dev->sbuf[4] == 0)
1241 nsend += 0x100;
1242 }
1243 }
1244 } else
1245 nsend = nr;
1246
1247 /* T0: output procedure byte */
1248 if (test_bit(IS_INVREV, &dev->flags)) {
1249 DEBUGP(4, dev, "T=0 set Procedure byte (inverse-reverse) "
1250 "0x%.2x\n", invert_revert(dev->sbuf[1]));
1251 xoutb(invert_revert(dev->sbuf[1]), REG_NUM_BYTES(iobase));
1252 } else {
1253 DEBUGP(4, dev, "T=0 set Procedure byte 0x%.2x\n", dev->sbuf[1]);
1254 xoutb(dev->sbuf[1], REG_NUM_BYTES(iobase));
1255 }
1256
1257 DEBUGP(1, dev, "set NumSendBytes = 0x%.2x\n",
1258 (unsigned char)(nsend & 0xff));
1259 xoutb((unsigned char)(nsend & 0xff), REG_NUM_SEND(iobase));
1260
1261 DEBUGP(1, dev, "Trigger CARDMAN CONTROLLER (0x%.2x)\n",
1262 0x40 /* SM_Active */
1263 | (dev->flags0 & 2 ? 0 : 4) /* power on if needed */
1264 |(dev->proto ? 0x10 : 0x08) /* T=1/T=0 */
1265 |(nsend & 0x100) >> 8 /* MSB numSendBytes */ );
1266 xoutb(0x40 /* SM_Active */
1267 | (dev->flags0 & 2 ? 0 : 4) /* power on if needed */
1268 |(dev->proto ? 0x10 : 0x08) /* T=1/T=0 */
1269 |(nsend & 0x100) >> 8, /* MSB numSendBytes */
1270 REG_FLAGS0(iobase));
1271
1272 /* wait for xmit done */
1273 if (dev->proto == 1) {
1274 DEBUGP(4, dev, "Wait for xmit done\n");
1275 for (i = 0; i < 1000; i++) {
1276 if (inb(REG_FLAGS0(iobase)) & 0x08)
1277 break;
1278 msleep_interruptible(10);
1279 }
1280 if (i == 1000) {
1281 DEBUGP(4, dev, "timeout waiting for xmit done\n");
1282 rc = -EIO;
1283 goto release_io;
1284 }
1285 }
1286
1287 /* T=1: wait for infoLen */
1288
1289 infolen = 0;
1290 if (dev->proto) {
1291 /* wait until infoLen is valid */
1292 for (i = 0; i < 6000; i++) { /* max waiting time of 1 min */
1293 io_read_num_rec_bytes(iobase, &s);
1294 if (s >= 3) {
1295 infolen = inb(REG_FLAGS1(iobase));
1296 DEBUGP(4, dev, "infolen=%d\n", infolen);
1297 break;
1298 }
1299 msleep_interruptible(10);
1300 }
1301 if (i == 6000) {
1302 DEBUGP(4, dev, "timeout waiting for infoLen\n");
1303 rc = -EIO;
1304 goto release_io;
1305 }
1306 } else
1307 clear_bit(IS_PROCBYTE_PRESENT, &dev->flags);
1308
1309 /* numRecBytes | bit9 of numRecytes */
1310 io_read_num_rec_bytes(iobase, &dev->rlen);
1311 for (i = 0; i < 600; i++) { /* max waiting time of 2 sec */
1312 if (dev->proto) {
1313 if (dev->rlen >= infolen + 4)
1314 break;
1315 }
1316 msleep_interruptible(10);
1317 /* numRecBytes | bit9 of numRecytes */
1318 io_read_num_rec_bytes(iobase, &s);
1319 if (s > dev->rlen) {
1320 DEBUGP(1, dev, "NumRecBytes inc (reset timeout)\n");
1321 i = 0; /* reset timeout */
1322 dev->rlen = s;
1323 }
1324 /* T=0: we are done when numRecBytes doesn't
1325 * increment any more and NoProcedureByte
1326 * is set and numRecBytes == bytes sent + 6
1327 * (header bytes + data + 1 for sw2)
1328 * except when the card replies an error
1329 * which means, no data will be sent back.
1330 */
1331 else if (dev->proto == 0) {
1332 if ((inb(REG_BUF_ADDR(iobase)) & 0x80)) {
1333 /* no procedure byte received since last read */
1334 DEBUGP(1, dev, "NoProcedure byte set\n");
1335 /* i=0; */
1336 } else {
1337 /* procedure byte received since last read */
1338 DEBUGP(1, dev, "NoProcedure byte unset "
1339 "(reset timeout)\n");
1340 dev->procbyte = inb(REG_FLAGS1(iobase));
1341 DEBUGP(1, dev, "Read procedure byte 0x%.2x\n",
1342 dev->procbyte);
1343 i = 0; /* resettimeout */
1344 }
1345 if (inb(REG_FLAGS0(iobase)) & 0x08) {
1346 DEBUGP(1, dev, "T0Done flag (read reply)\n");
1347 break;
1348 }
1349 }
1350 if (dev->proto)
1351 infolen = inb(REG_FLAGS1(iobase));
1352 }
1353 if (i == 600) {
1354 DEBUGP(1, dev, "timeout waiting for numRecBytes\n");
1355 rc = -EIO;
1356 goto release_io;
1357 } else {
1358 if (dev->proto == 0) {
1359 DEBUGP(1, dev, "Wait for T0Done bit to be set\n");
1360 for (i = 0; i < 1000; i++) {
1361 if (inb(REG_FLAGS0(iobase)) & 0x08)
1362 break;
1363 msleep_interruptible(10);
1364 }
1365 if (i == 1000) {
1366 DEBUGP(1, dev, "timeout waiting for T0Done\n");
1367 rc = -EIO;
1368 goto release_io;
1369 }
1370
1371 dev->procbyte = inb(REG_FLAGS1(iobase));
1372 DEBUGP(4, dev, "Read procedure byte 0x%.2x\n",
1373 dev->procbyte);
1374
1375 io_read_num_rec_bytes(iobase, &dev->rlen);
1376 DEBUGP(4, dev, "Read NumRecBytes = %i\n", dev->rlen);
1377
1378 }
1379 }
1380 /* T=1: read offset=zero, T=0: read offset=after challenge */
1381 dev->rpos = dev->proto ? 0 : nr == 4 ? 5 : nr > dev->rlen ? 5 : nr;
1382 DEBUGP(4, dev, "dev->rlen = %i, dev->rpos = %i, nr = %i\n",
1383 dev->rlen, dev->rpos, nr);
1384
1385 release_io:
1386 DEBUGP(4, dev, "Reset SM\n");
1387 xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */
1388
1389 if (rc < 0) {
1390 DEBUGP(4, dev, "Write failed but clear T_Active\n");
1391 dev->flags1 &= 0xdf;
1392 xoutb(dev->flags1, REG_FLAGS1(iobase));
1393 }
1394
1395 clear_bit(LOCK_IO, &dev->flags);
1396 wake_up_interruptible(&dev->ioq);
1397 wake_up_interruptible(&dev->readq); /* tell read we have data */
1398
1399 /* ITSEC E2: clear write buffer */
1400 memset((char *)dev->sbuf, 0, 512);
1401
1402 /* return error or actually written bytes */
1403 DEBUGP(2, dev, "<- cmm_write\n");
1404 return rc < 0 ? rc : nr;
1405 }
1406
1407 static void start_monitor(struct cm4000_dev *dev)
1408 {
1409 DEBUGP(3, dev, "-> start_monitor\n");
1410 if (!dev->monitor_running) {
1411 DEBUGP(5, dev, "create, init and add timer\n");
1412 init_timer(&dev->timer);
1413 dev->monitor_running = 1;
1414 dev->timer.expires = jiffies;
1415 dev->timer.data = (unsigned long) dev;
1416 dev->timer.function = monitor_card;
1417 add_timer(&dev->timer);
1418 } else
1419 DEBUGP(5, dev, "monitor already running\n");
1420 DEBUGP(3, dev, "<- start_monitor\n");
1421 }
1422
1423 static void stop_monitor(struct cm4000_dev *dev)
1424 {
1425 DEBUGP(3, dev, "-> stop_monitor\n");
1426 if (dev->monitor_running) {
1427 DEBUGP(5, dev, "stopping monitor\n");
1428 terminate_monitor(dev);
1429 /* reset monitor SM */
1430 clear_bit(IS_ATR_VALID, &dev->flags);
1431 clear_bit(IS_ATR_PRESENT, &dev->flags);
1432 } else
1433 DEBUGP(5, dev, "monitor already stopped\n");
1434 DEBUGP(3, dev, "<- stop_monitor\n");
1435 }
1436
1437 static int cmm_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
1438 unsigned long arg)
1439 {
1440 struct cm4000_dev *dev = filp->private_data;
1441 ioaddr_t iobase = dev->link.io.BasePort1;
1442 dev_link_t *link;
1443 int size;
1444 int rc;
1445 void __user *argp = (void __user *)arg;
1446 #ifdef PCMCIA_DEBUG
1447 char *ioctl_names[CM_IOC_MAXNR + 1] = {
1448 [_IOC_NR(CM_IOCGSTATUS)] "CM_IOCGSTATUS",
1449 [_IOC_NR(CM_IOCGATR)] "CM_IOCGATR",
1450 [_IOC_NR(CM_IOCARDOFF)] "CM_IOCARDOFF",
1451 [_IOC_NR(CM_IOCSPTS)] "CM_IOCSPTS",
1452 [_IOC_NR(CM_IOSDBGLVL)] "CM4000_DBGLVL",
1453 };
1454 #endif
1455 DEBUGP(3, dev, "cmm_ioctl(device=%d.%d) %s\n", imajor(inode),
1456 iminor(inode), ioctl_names[_IOC_NR(cmd)]);
1457
1458 link = dev_table[iminor(inode)];
1459 if (!(DEV_OK(link))) {
1460 DEBUGP(4, dev, "DEV_OK false\n");
1461 return -ENODEV;
1462 }
1463
1464 if (test_bit(IS_CMM_ABSENT, &dev->flags)) {
1465 DEBUGP(4, dev, "CMM_ABSENT flag set\n");
1466 return -ENODEV;
1467 }
1468
1469 if (_IOC_TYPE(cmd) != CM_IOC_MAGIC) {
1470 DEBUGP(4, dev, "ioctype mismatch\n");
1471 return -EINVAL;
1472 }
1473 if (_IOC_NR(cmd) > CM_IOC_MAXNR) {
1474 DEBUGP(4, dev, "iocnr mismatch\n");
1475 return -EINVAL;
1476 }
1477 size = _IOC_SIZE(cmd);
1478 rc = 0;
1479 DEBUGP(4, dev, "iocdir=%.4x iocr=%.4x iocw=%.4x iocsize=%d cmd=%.4x\n",
1480 _IOC_DIR(cmd), _IOC_READ, _IOC_WRITE, size, cmd);
1481
1482 if (_IOC_DIR(cmd) & _IOC_READ) {
1483 if (!access_ok(VERIFY_WRITE, argp, size))
1484 return -EFAULT;
1485 }
1486 if (_IOC_DIR(cmd) & _IOC_WRITE) {
1487 if (!access_ok(VERIFY_READ, argp, size))
1488 return -EFAULT;
1489 }
1490
1491 switch (cmd) {
1492 case CM_IOCGSTATUS:
1493 DEBUGP(4, dev, " ... in CM_IOCGSTATUS\n");
1494 {
1495 int status;
1496
1497 /* clear other bits, but leave inserted & powered as
1498 * they are */
1499 status = dev->flags0 & 3;
1500 if (test_bit(IS_ATR_PRESENT, &dev->flags))
1501 status |= CM_ATR_PRESENT;
1502 if (test_bit(IS_ATR_VALID, &dev->flags))
1503 status |= CM_ATR_VALID;
1504 if (test_bit(IS_CMM_ABSENT, &dev->flags))
1505 status |= CM_NO_READER;
1506 if (test_bit(IS_BAD_CARD, &dev->flags))
1507 status |= CM_BAD_CARD;
1508 if (copy_to_user(argp, &status, sizeof(int)))
1509 return -EFAULT;
1510 }
1511 return 0;
1512 case CM_IOCGATR:
1513 DEBUGP(4, dev, "... in CM_IOCGATR\n");
1514 {
1515 struct atreq __user *atreq = argp;
1516 int tmp;
1517 /* allow nonblocking io and being interrupted */
1518 if (wait_event_interruptible
1519 (dev->atrq,
1520 ((filp->f_flags & O_NONBLOCK)
1521 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags)
1522 != 0)))) {
1523 if (filp->f_flags & O_NONBLOCK)
1524 return -EAGAIN;
1525 return -ERESTARTSYS;
1526 }
1527
1528 if (test_bit(IS_ATR_VALID, &dev->flags) == 0) {
1529 tmp = -1;
1530 if (copy_to_user(&(atreq->atr_len), &tmp,
1531 sizeof(int)))
1532 return -EFAULT;
1533 } else {
1534 if (copy_to_user(atreq->atr, dev->atr,
1535 dev->atr_len))
1536 return -EFAULT;
1537
1538 tmp = dev->atr_len;
1539 if (copy_to_user(&(atreq->atr_len), &tmp, sizeof(int)))
1540 return -EFAULT;
1541 }
1542 return 0;
1543 }
1544 case CM_IOCARDOFF:
1545
1546 #ifdef PCMCIA_DEBUG
1547 DEBUGP(4, dev, "... in CM_IOCARDOFF\n");
1548 if (dev->flags0 & 0x01) {
1549 DEBUGP(4, dev, " Card inserted\n");
1550 } else {
1551 DEBUGP(2, dev, " No card inserted\n");
1552 }
1553 if (dev->flags0 & 0x02) {
1554 DEBUGP(4, dev, " Card powered\n");
1555 } else {
1556 DEBUGP(2, dev, " Card not powered\n");
1557 }
1558 #endif
1559
1560 /* is a card inserted and powered? */
1561 if ((dev->flags0 & 0x01) && (dev->flags0 & 0x02)) {
1562
1563 /* get IO lock */
1564 if (wait_event_interruptible
1565 (dev->ioq,
1566 ((filp->f_flags & O_NONBLOCK)
1567 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags)
1568 == 0)))) {
1569 if (filp->f_flags & O_NONBLOCK)
1570 return -EAGAIN;
1571 return -ERESTARTSYS;
1572 }
1573 /* Set Flags0 = 0x42 */
1574 DEBUGP(4, dev, "Set Flags0=0x42 \n");
1575 xoutb(0x42, REG_FLAGS0(iobase));
1576 clear_bit(IS_ATR_PRESENT, &dev->flags);
1577 clear_bit(IS_ATR_VALID, &dev->flags);
1578 dev->mstate = M_CARDOFF;
1579 clear_bit(LOCK_IO, &dev->flags);
1580 if (wait_event_interruptible
1581 (dev->atrq,
1582 ((filp->f_flags & O_NONBLOCK)
1583 || (test_bit(IS_ATR_VALID, (void *)&dev->flags) !=
1584 0)))) {
1585 if (filp->f_flags & O_NONBLOCK)
1586 return -EAGAIN;
1587 return -ERESTARTSYS;
1588 }
1589 }
1590 /* release lock */
1591 clear_bit(LOCK_IO, &dev->flags);
1592 wake_up_interruptible(&dev->ioq);
1593
1594 return 0;
1595 case CM_IOCSPTS:
1596 {
1597 struct ptsreq krnptsreq;
1598
1599 if (copy_from_user(&krnptsreq, argp,
1600 sizeof(struct ptsreq)))
1601 return -EFAULT;
1602
1603 rc = 0;
1604 DEBUGP(4, dev, "... in CM_IOCSPTS\n");
1605 /* wait for ATR to get valid */
1606 if (wait_event_interruptible
1607 (dev->atrq,
1608 ((filp->f_flags & O_NONBLOCK)
1609 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags)
1610 != 0)))) {
1611 if (filp->f_flags & O_NONBLOCK)
1612 return -EAGAIN;
1613 return -ERESTARTSYS;
1614 }
1615 /* get IO lock */
1616 if (wait_event_interruptible
1617 (dev->ioq,
1618 ((filp->f_flags & O_NONBLOCK)
1619 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags)
1620 == 0)))) {
1621 if (filp->f_flags & O_NONBLOCK)
1622 return -EAGAIN;
1623 return -ERESTARTSYS;
1624 }
1625
1626 if ((rc = set_protocol(dev, &krnptsreq)) != 0) {
1627 /* auto power_on again */
1628 dev->mstate = M_FETCH_ATR;
1629 clear_bit(IS_ATR_VALID, &dev->flags);
1630 }
1631 /* release lock */
1632 clear_bit(LOCK_IO, &dev->flags);
1633 wake_up_interruptible(&dev->ioq);
1634
1635 }
1636 return rc;
1637 #ifdef PCMCIA_DEBUG
1638 case CM_IOSDBGLVL: /* set debug log level */
1639 {
1640 int old_pc_debug = 0;
1641
1642 old_pc_debug = pc_debug;
1643 if (copy_from_user(&pc_debug, argp, sizeof(int)))
1644 return -EFAULT;
1645
1646 if (old_pc_debug != pc_debug)
1647 DEBUGP(0, dev, "Changed debug log level "
1648 "to %i\n", pc_debug);
1649 }
1650 return rc;
1651 #endif
1652 default:
1653 DEBUGP(4, dev, "... in default (unknown IOCTL code)\n");
1654 return -EINVAL;
1655 }
1656 }
1657
1658 static int cmm_open(struct inode *inode, struct file *filp)
1659 {
1660 struct cm4000_dev *dev;
1661 dev_link_t *link;
1662 int rc, minor = iminor(inode);
1663
1664 if (minor >= CM4000_MAX_DEV)
1665 return -ENODEV;
1666
1667 link = dev_table[minor];
1668 if (link == NULL || !(DEV_OK(link)))
1669 return -ENODEV;
1670
1671 if (link->open)
1672 return -EBUSY;
1673
1674 dev = link->priv;
1675 filp->private_data = dev;
1676
1677 DEBUGP(2, dev, "-> cmm_open(device=%d.%d process=%s,%d)\n",
1678 imajor(inode), minor, current->comm, current->pid);
1679
1680 /* init device variables, they may be "polluted" after close
1681 * or, the device may never have been closed (i.e. open failed)
1682 */
1683
1684 ZERO_DEV(dev);
1685
1686 /* opening will always block since the
1687 * monitor will be started by open, which
1688 * means we have to wait for ATR becoming
1689 * vaild = block until valid (or card
1690 * inserted)
1691 */
1692 if (filp->f_flags & O_NONBLOCK)
1693 return -EAGAIN;
1694
1695 dev->mdelay = T_50MSEC;
1696
1697 /* start monitoring the cardstatus */
1698 start_monitor(dev);
1699
1700 link->open = 1; /* only one open per device */
1701 rc = 0;
1702
1703 DEBUGP(2, dev, "<- cmm_open\n");
1704 return nonseekable_open(inode, filp);
1705 }
1706
1707 static int cmm_close(struct inode *inode, struct file *filp)
1708 {
1709 struct cm4000_dev *dev;
1710 dev_link_t *link;
1711 int minor = iminor(inode);
1712
1713 if (minor >= CM4000_MAX_DEV)
1714 return -ENODEV;
1715
1716 link = dev_table[minor];
1717 if (link == NULL)
1718 return -ENODEV;
1719
1720 dev = link->priv;
1721
1722 DEBUGP(2, dev, "-> cmm_close(maj/min=%d.%d)\n",
1723 imajor(inode), minor);
1724
1725 stop_monitor(dev);
1726
1727 ZERO_DEV(dev);
1728
1729 link->open = 0; /* only one open per device */
1730 wake_up(&dev->devq); /* socket removed? */
1731
1732 DEBUGP(2, dev, "cmm_close\n");
1733 return 0;
1734 }
1735
1736 static void cmm_cm4000_release(dev_link_t * link)
1737 {
1738 struct cm4000_dev *dev = link->priv;
1739
1740 /* dont terminate the monitor, rather rely on
1741 * close doing that for us.
1742 */
1743 DEBUGP(3, dev, "-> cmm_cm4000_release\n");
1744 while (link->open) {
1745 printk(KERN_INFO MODULE_NAME ": delaying release until "
1746 "process has terminated\n");
1747 /* note: don't interrupt us:
1748 * close the applications which own
1749 * the devices _first_ !
1750 */
1751 wait_event(dev->devq, (link->open == 0));
1752 }
1753 /* dev->devq=NULL; this cannot be zeroed earlier */
1754 DEBUGP(3, dev, "<- cmm_cm4000_release\n");
1755 return;
1756 }
1757
1758 /*==== Interface to PCMCIA Layer =======================================*/
1759
1760 static void cm4000_config(dev_link_t * link, int devno)
1761 {
1762 client_handle_t handle = link->handle;
1763 struct cm4000_dev *dev;
1764 tuple_t tuple;
1765 cisparse_t parse;
1766 config_info_t conf;
1767 u_char buf[64];
1768 int fail_fn, fail_rc;
1769 int rc;
1770
1771 /* read the config-tuples */
1772 tuple.DesiredTuple = CISTPL_CONFIG;
1773 tuple.Attributes = 0;
1774 tuple.TupleData = buf;
1775 tuple.TupleDataMax = sizeof(buf);
1776 tuple.TupleOffset = 0;
1777
1778 if ((fail_rc = pcmcia_get_first_tuple(handle, &tuple)) != CS_SUCCESS) {
1779 fail_fn = GetFirstTuple;
1780 goto cs_failed;
1781 }
1782 if ((fail_rc = pcmcia_get_tuple_data(handle, &tuple)) != CS_SUCCESS) {
1783 fail_fn = GetTupleData;
1784 goto cs_failed;
1785 }
1786 if ((fail_rc =
1787 pcmcia_parse_tuple(handle, &tuple, &parse)) != CS_SUCCESS) {
1788 fail_fn = ParseTuple;
1789 goto cs_failed;
1790 }
1791 if ((fail_rc =
1792 pcmcia_get_configuration_info(handle, &conf)) != CS_SUCCESS) {
1793 fail_fn = GetConfigurationInfo;
1794 goto cs_failed;
1795 }
1796
1797 link->state |= DEV_CONFIG;
1798 link->conf.ConfigBase = parse.config.base;
1799 link->conf.Present = parse.config.rmask[0];
1800 link->conf.Vcc = conf.Vcc;
1801
1802 link->io.BasePort2 = 0;
1803 link->io.NumPorts2 = 0;
1804 link->io.Attributes2 = 0;
1805 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
1806 for (rc = pcmcia_get_first_tuple(handle, &tuple);
1807 rc == CS_SUCCESS; rc = pcmcia_get_next_tuple(handle, &tuple)) {
1808
1809 rc = pcmcia_get_tuple_data(handle, &tuple);
1810 if (rc != CS_SUCCESS)
1811 continue;
1812 rc = pcmcia_parse_tuple(handle, &tuple, &parse);
1813 if (rc != CS_SUCCESS)
1814 continue;
1815
1816 link->conf.ConfigIndex = parse.cftable_entry.index;
1817
1818 if (!parse.cftable_entry.io.nwin)
1819 continue;
1820
1821 /* Get the IOaddr */
1822 link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
1823 link->io.NumPorts1 = parse.cftable_entry.io.win[0].len;
1824 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
1825 if (!(parse.cftable_entry.io.flags & CISTPL_IO_8BIT))
1826 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
1827 if (!(parse.cftable_entry.io.flags & CISTPL_IO_16BIT))
1828 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
1829 link->io.IOAddrLines = parse.cftable_entry.io.flags
1830 & CISTPL_IO_LINES_MASK;
1831
1832 rc = pcmcia_request_io(handle, &link->io);
1833 if (rc == CS_SUCCESS)
1834 break; /* we are done */
1835 }
1836 if (rc != CS_SUCCESS)
1837 goto cs_release;
1838
1839 link->conf.IntType = 00000002;
1840
1841 if ((fail_rc =
1842 pcmcia_request_configuration(handle, &link->conf)) != CS_SUCCESS) {
1843 fail_fn = RequestConfiguration;
1844 goto cs_release;
1845 }
1846
1847 dev = link->priv;
1848 sprintf(dev->node.dev_name, DEVICE_NAME "%d", devno);
1849 dev->node.major = major;
1850 dev->node.minor = devno;
1851 dev->node.next = NULL;
1852 link->dev = &dev->node;
1853 link->state &= ~DEV_CONFIG_PENDING;
1854
1855 return;
1856
1857 cs_failed:
1858 cs_error(handle, fail_fn, fail_rc);
1859 cs_release:
1860 cm4000_release(link);
1861
1862 link->state &= ~DEV_CONFIG_PENDING;
1863 }
1864
1865 static int cm4000_suspend(struct pcmcia_device *p_dev)
1866 {
1867 dev_link_t *link = dev_to_instance(p_dev);
1868 struct cm4000_dev *dev;
1869
1870 dev = link->priv;
1871
1872 link->state |= DEV_SUSPEND;
1873 if (link->state & DEV_CONFIG)
1874 pcmcia_release_configuration(link->handle);
1875 stop_monitor(dev);
1876
1877 return 0;
1878 }
1879
1880 static int cm4000_resume(struct pcmcia_device *p_dev)
1881 {
1882 dev_link_t *link = dev_to_instance(p_dev);
1883 struct cm4000_dev *dev;
1884
1885 dev = link->priv;
1886
1887 link->state &= ~DEV_SUSPEND;
1888 if (link->state & DEV_CONFIG)
1889 pcmcia_request_configuration(link->handle, &link->conf);
1890
1891 if (link->open)
1892 start_monitor(dev);
1893
1894 return 0;
1895 }
1896
1897 static void cm4000_release(dev_link_t *link)
1898 {
1899 cmm_cm4000_release(link->priv); /* delay release until device closed */
1900 pcmcia_release_configuration(link->handle);
1901 pcmcia_release_io(link->handle, &link->io);
1902 }
1903
1904 static int cm4000_attach(struct pcmcia_device *p_dev)
1905 {
1906 struct cm4000_dev *dev;
1907 dev_link_t *link;
1908 int i;
1909
1910 for (i = 0; i < CM4000_MAX_DEV; i++)
1911 if (dev_table[i] == NULL)
1912 break;
1913
1914 if (i == CM4000_MAX_DEV) {
1915 printk(KERN_NOTICE MODULE_NAME ": all devices in use\n");
1916 return -ENODEV;
1917 }
1918
1919 /* create a new cm4000_cs device */
1920 dev = kzalloc(sizeof(struct cm4000_dev), GFP_KERNEL);
1921 if (dev == NULL)
1922 return -ENOMEM;
1923
1924 link = &dev->link;
1925 link->priv = dev;
1926 link->conf.IntType = INT_MEMORY_AND_IO;
1927 dev_table[i] = link;
1928
1929 init_waitqueue_head(&dev->devq);
1930 init_waitqueue_head(&dev->ioq);
1931 init_waitqueue_head(&dev->atrq);
1932 init_waitqueue_head(&dev->readq);
1933
1934 link->handle = p_dev;
1935 p_dev->instance = link;
1936
1937 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
1938 cm4000_config(link, i);
1939
1940 return 0;
1941 }
1942
1943 static void cm4000_detach(struct pcmcia_device *p_dev)
1944 {
1945 dev_link_t *link = dev_to_instance(p_dev);
1946 struct cm4000_dev *dev = link->priv;
1947 int devno;
1948
1949 /* find device */
1950 for (devno = 0; devno < CM4000_MAX_DEV; devno++)
1951 if (dev_table[devno] == link)
1952 break;
1953 if (devno == CM4000_MAX_DEV)
1954 return;
1955
1956 link->state &= ~DEV_PRESENT;
1957 stop_monitor(dev);
1958
1959 if (link->state & DEV_CONFIG)
1960 cm4000_release(link);
1961
1962 dev_table[devno] = NULL;
1963 kfree(dev);
1964
1965 return;
1966 }
1967
1968 static struct file_operations cm4000_fops = {
1969 .owner = THIS_MODULE,
1970 .read = cmm_read,
1971 .write = cmm_write,
1972 .ioctl = cmm_ioctl,
1973 .open = cmm_open,
1974 .release= cmm_close,
1975 };
1976
1977 static struct pcmcia_device_id cm4000_ids[] = {
1978 PCMCIA_DEVICE_MANF_CARD(0x0223, 0x0002),
1979 PCMCIA_DEVICE_PROD_ID12("CardMan", "4000", 0x2FB368CA, 0xA2BD8C39),
1980 PCMCIA_DEVICE_NULL,
1981 };
1982 MODULE_DEVICE_TABLE(pcmcia, cm4000_ids);
1983
1984 static struct pcmcia_driver cm4000_driver = {
1985 .owner = THIS_MODULE,
1986 .drv = {
1987 .name = "cm4000_cs",
1988 },
1989 .probe = cm4000_attach,
1990 .remove = cm4000_detach,
1991 .suspend = cm4000_suspend,
1992 .resume = cm4000_resume,
1993 .id_table = cm4000_ids,
1994 };
1995
1996 static int __init cmm_init(void)
1997 {
1998 printk(KERN_INFO "%s\n", version);
1999 pcmcia_register_driver(&cm4000_driver);
2000 major = register_chrdev(0, DEVICE_NAME, &cm4000_fops);
2001 if (major < 0) {
2002 printk(KERN_WARNING MODULE_NAME
2003 ": could not get major number\n");
2004 return -1;
2005 }
2006
2007 return 0;
2008 }
2009
2010 static void __exit cmm_exit(void)
2011 {
2012 printk(KERN_INFO MODULE_NAME ": unloading\n");
2013 pcmcia_unregister_driver(&cm4000_driver);
2014 unregister_chrdev(major, DEVICE_NAME);
2015 };
2016
2017 module_init(cmm_init);
2018 module_exit(cmm_exit);
2019 MODULE_LICENSE("Dual BSD/GPL");
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