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pcmcia: dev_node removal (write-only drivers)
[deliverable/linux.git] / drivers / char / pcmcia / cm4000_cs.c
CommitLineData
c1986ee9
HW		 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 *
67bc6200 16 * (C) 2005-2006 Harald Welte <laforge@gnumonks.org>
c1986ee9
HW		 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()
67bc6200 21 * - add class interface for udev device creation
c1986ee9
HW		 22 *
23 * All rights reserved. Licensed under dual BSD/GPL license.
24 */
25
c1986ee9
HW		 26#include <linux/kernel.h>
27#include <linux/module.h>
28#include <linux/slab.h>
29#include <linux/init.h>
30#include <linux/fs.h>
31#include <linux/delay.h>
884c3d75 32#include <linux/bitrev.h>
4cf974c5
AC		 33#include <linux/smp_lock.h>
34#include <linux/uaccess.h>
35#include <linux/io.h>
c1986ee9
HW		 36
37#include <pcmcia/cs_types.h>
38#include <pcmcia/cs.h>
39#include <pcmcia/cistpl.h>
40#include <pcmcia/cisreg.h>
41#include <pcmcia/ciscode.h>
42#include <pcmcia/ds.h>
43
44#include <linux/cm4000_cs.h>
45
46/* #define ATR_CSUM */
47
dd2e5a15 48#define reader_to_dev(x) (&x->p_dev->dev)
cbf624f0
DB		 49
50/* n (debug level) is ignored */
51/* additional debug output may be enabled by re-compiling with
52 * CM4000_DEBUG set */
53/* #define CM4000_DEBUG */
54#define DEBUGP(n, rdr, x, args...) do { \
55 dev_dbg(reader_to_dev(rdr), "%s:" x, \
56 __func__ , ## args); \
c1986ee9 57 } while (0)
cbf624f0 58
67bc6200 59static char *version = "cm4000_cs.c v2.4.0gm6 - All bugs added by Harald Welte";
c1986ee9
HW		 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
fba395ee 69static void cm4000_release(struct pcmcia_device *link);
c1986ee9
HW		 70
71static 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
107struct cm4000_dev {
fd238232 108 struct pcmcia_device *p_dev;
c1986ee9
HW		 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) - \
a2bcce8e 151 offsetof(struct cm4000_dev, atr_csum))
c1986ee9 152
fba395ee 153static struct pcmcia_device *dev_table[CM4000_MAX_DEV];
67bc6200 154static struct class *cmm_class;
c1986ee9
HW		 155
156/* This table doesn't use spaces after the comma between fields and thus
157 * violates CodingStyle. However, I don't really think wrapping it around will
158 * make it any clearer to read -HW */
159static unsigned char fi_di_table[10][14] = {
160/*FI 00 01 02 03 04 05 06 07 08 09 10 11 12 13 */
161/*DI */
162/* 0 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11},
163/* 1 */ {0x01,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x91,0x11,0x11,0x11,0x11},
164/* 2 */ {0x02,0x12,0x22,0x32,0x11,0x11,0x11,0x11,0x11,0x92,0xA2,0xB2,0x11,0x11},
165/* 3 */ {0x03,0x13,0x23,0x33,0x43,0x53,0x63,0x11,0x11,0x93,0xA3,0xB3,0xC3,0xD3},
166/* 4 */ {0x04,0x14,0x24,0x34,0x44,0x54,0x64,0x11,0x11,0x94,0xA4,0xB4,0xC4,0xD4},
167/* 5 */ {0x00,0x15,0x25,0x35,0x45,0x55,0x65,0x11,0x11,0x95,0xA5,0xB5,0xC5,0xD5},
168/* 6 */ {0x06,0x16,0x26,0x36,0x46,0x56,0x66,0x11,0x11,0x96,0xA6,0xB6,0xC6,0xD6},
169/* 7 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11},
170/* 8 */ {0x08,0x11,0x28,0x38,0x48,0x58,0x68,0x11,0x11,0x98,0xA8,0xB8,0xC8,0xD8},
171/* 9 */ {0x09,0x19,0x29,0x39,0x49,0x59,0x69,0x11,0x11,0x99,0xA9,0xB9,0xC9,0xD9}
172};
173
cbf624f0 174#ifndef CM4000_DEBUG
c1986ee9
HW		 175#define xoutb outb
176#define xinb inb
177#else
178static inline void xoutb(unsigned char val, unsigned short port)
179{
cbf624f0 180 pr_debug("outb(val=%.2x,port=%.4x)\n", val, port);
c1986ee9
HW		 181 outb(val, port);
182}
183static inline unsigned char xinb(unsigned short port)
184{
185 unsigned char val;
186
187 val = inb(port);
cbf624f0 188 pr_debug("%.2x=inb(%.4x)\n", val, port);
c1986ee9
HW		 189
190 return val;
191}
192#endif
193
884c3d75
AM		 194static inline unsigned char invert_revert(unsigned char ch)
195{
196 return bitrev8(~ch);
197}
c1986ee9
HW		 198
199static void str_invert_revert(unsigned char *b, int len)
200{
201 int i;
202
203 for (i = 0; i < len; i++)
884c3d75 204 b[i] = invert_revert(b[i]);
c1986ee9
HW		 205}
206
207#define ATRLENCK(dev,pos) \
208 if (pos>=dev->atr_len || pos>=MAX_ATR) \
209 goto return_0;
210
211static unsigned int calc_baudv(unsigned char fidi)
212{
213 unsigned int wcrcf, wbrcf, fi_rfu, di_rfu;
214
215 fi_rfu = 372;
216 di_rfu = 1;
217
218 /* FI */
219 switch ((fidi >> 4) & 0x0F) {
220 case 0x00:
221 wcrcf = 372;
222 break;
223 case 0x01:
224 wcrcf = 372;
225 break;
226 case 0x02:
227 wcrcf = 558;
228 break;
229 case 0x03:
230 wcrcf = 744;
231 break;
232 case 0x04:
233 wcrcf = 1116;
234 break;
235 case 0x05:
236 wcrcf = 1488;
237 break;
238 case 0x06:
239 wcrcf = 1860;
240 break;
241 case 0x07:
242 wcrcf = fi_rfu;
243 break;
244 case 0x08:
245 wcrcf = fi_rfu;
246 break;
247 case 0x09:
248 wcrcf = 512;
249 break;
250 case 0x0A:
251 wcrcf = 768;
252 break;
253 case 0x0B:
254 wcrcf = 1024;
255 break;
256 case 0x0C:
257 wcrcf = 1536;
258 break;
259 case 0x0D:
260 wcrcf = 2048;
261 break;
262 default:
263 wcrcf = fi_rfu;
264 break;
265 }
266
267 /* DI */
268 switch (fidi & 0x0F) {
269 case 0x00:
270 wbrcf = di_rfu;
271 break;
272 case 0x01:
273 wbrcf = 1;
274 break;
275 case 0x02:
276 wbrcf = 2;
277 break;
278 case 0x03:
279 wbrcf = 4;
280 break;
281 case 0x04:
282 wbrcf = 8;
283 break;
284 case 0x05:
285 wbrcf = 16;
286 break;
287 case 0x06:
288 wbrcf = 32;
289 break;
290 case 0x07:
291 wbrcf = di_rfu;
292 break;
293 case 0x08:
294 wbrcf = 12;
295 break;
296 case 0x09:
297 wbrcf = 20;
298 break;
299 default:
300 wbrcf = di_rfu;
301 break;
302 }
303
304 return (wcrcf / wbrcf);
305}
306
ecb8a847
OJ		 307static unsigned short io_read_num_rec_bytes(unsigned int iobase,
308 unsigned short *s)
c1986ee9
HW		 309{
310 unsigned short tmp;
311
312 tmp = *s = 0;
313 do {
314 *s = tmp;
315 tmp = inb(REG_NUM_BYTES(iobase)) |
316 (inb(REG_FLAGS0(iobase)) & 4 ? 0x100 : 0);
317 } while (tmp != *s);
318
319 return *s;
320}
321
322static int parse_atr(struct cm4000_dev *dev)
323{
324 unsigned char any_t1, any_t0;
325 unsigned char ch, ifno;
326 int ix, done;
327
328 DEBUGP(3, dev, "-> parse_atr: dev->atr_len = %i\n", dev->atr_len);
329
330 if (dev->atr_len < 3) {
331 DEBUGP(5, dev, "parse_atr: atr_len < 3\n");
332 return 0;
333 }
334
335 if (dev->atr[0] == 0x3f)
336 set_bit(IS_INVREV, &dev->flags);
337 else
338 clear_bit(IS_INVREV, &dev->flags);
339 ix = 1;
340 ifno = 1;
341 ch = dev->atr[1];
342 dev->proto = 0; /* XXX PROTO */
343 any_t1 = any_t0 = done = 0;
344 dev->ta1 = 0x11; /* defaults to 9600 baud */
345 do {
346 if (ifno == 1 && (ch & 0x10)) {
347 /* read first interface byte and TA1 is present */
348 dev->ta1 = dev->atr[2];
349 DEBUGP(5, dev, "Card says FiDi is 0x%.2x\n", dev->ta1);
350 ifno++;
351 } else if ((ifno == 2) && (ch & 0x10)) { /* TA(2) */
352 dev->ta1 = 0x11;
353 ifno++;
354 }
355
356 DEBUGP(5, dev, "Yi=%.2x\n", ch & 0xf0);
357 ix += ((ch & 0x10) >> 4) /* no of int.face chars */
358 +((ch & 0x20) >> 5)
359 + ((ch & 0x40) >> 6)
360 + ((ch & 0x80) >> 7);
361 /* ATRLENCK(dev,ix); */
362 if (ch & 0x80) { /* TDi */
363 ch = dev->atr[ix];
364 if ((ch & 0x0f)) {
365 any_t1 = 1;
366 DEBUGP(5, dev, "card is capable of T=1\n");
367 } else {
368 any_t0 = 1;
369 DEBUGP(5, dev, "card is capable of T=0\n");
370 }
371 } else
372 done = 1;
373 } while (!done);
374
375 DEBUGP(5, dev, "ix=%d noHist=%d any_t1=%d\n",
376 ix, dev->atr[1] & 15, any_t1);
377 if (ix + 1 + (dev->atr[1] & 0x0f) + any_t1 != dev->atr_len) {
378 DEBUGP(5, dev, "length error\n");
379 return 0;
380 }
381 if (any_t0)
382 set_bit(IS_ANY_T0, &dev->flags);
383
384 if (any_t1) { /* compute csum */
385 dev->atr_csum = 0;
386#ifdef ATR_CSUM
387 for (i = 1; i < dev->atr_len; i++)
388 dev->atr_csum ^= dev->atr[i];
389 if (dev->atr_csum) {
390 set_bit(IS_BAD_CSUM, &dev->flags);
391 DEBUGP(5, dev, "bad checksum\n");
392 goto return_0;
393 }
394#endif
395 if (any_t0 == 0)
396 dev->proto = 1; /* XXX PROTO */
397 set_bit(IS_ANY_T1, &dev->flags);
398 }
399
400 return 1;
401}
402
403struct card_fixup {
404 char atr[12];
405 u_int8_t atr_len;
406 u_int8_t stopbits;
407};
408
409static struct card_fixup card_fixups[] = {
410 { /* ACOS */
411 .atr = { 0x3b, 0xb3, 0x11, 0x00, 0x00, 0x41, 0x01 },
412 .atr_len = 7,
413 .stopbits = 0x03,
414 },
415 { /* Motorola */
416 .atr = {0x3b, 0x76, 0x13, 0x00, 0x00, 0x80, 0x62, 0x07,
417 0x41, 0x81, 0x81 },
418 .atr_len = 11,
419 .stopbits = 0x04,
420 },
421};
422
423static void set_cardparameter(struct cm4000_dev *dev)
424{
425 int i;
ecb8a847 426 unsigned int iobase = dev->p_dev->io.BasePort1;
c1986ee9
HW		 427 u_int8_t stopbits = 0x02; /* ISO default */
428
429 DEBUGP(3, dev, "-> set_cardparameter\n");
430
431 dev->flags1 = dev->flags1 | (((dev->baudv - 1) & 0x0100) >> 8);
432 xoutb(dev->flags1, REG_FLAGS1(iobase));
433 DEBUGP(5, dev, "flags1 = 0x%02x\n", dev->flags1);
434
435 /* set baudrate */
436 xoutb((unsigned char)((dev->baudv - 1) & 0xFF), REG_BAUDRATE(iobase));
437
438 DEBUGP(5, dev, "baudv = %i -> write 0x%02x\n", dev->baudv,
439 ((dev->baudv - 1) & 0xFF));
440
441 /* set stopbits */
442 for (i = 0; i < ARRAY_SIZE(card_fixups); i++) {
443 if (!memcmp(dev->atr, card_fixups[i].atr,
444 card_fixups[i].atr_len))
445 stopbits = card_fixups[i].stopbits;
446 }
447 xoutb(stopbits, REG_STOPBITS(iobase));
448
449 DEBUGP(3, dev, "<- set_cardparameter\n");
450}
451
452static int set_protocol(struct cm4000_dev *dev, struct ptsreq *ptsreq)
453{
454
455 unsigned long tmp, i;
456 unsigned short num_bytes_read;
457 unsigned char pts_reply[4];
458 ssize_t rc;
ecb8a847 459 unsigned int iobase = dev->p_dev->io.BasePort1;
c1986ee9
HW		 460
461 rc = 0;
462
463 DEBUGP(3, dev, "-> set_protocol\n");
464 DEBUGP(5, dev, "ptsreq->Protocol = 0x%.8x, ptsreq->Flags=0x%.8x, "
465 "ptsreq->pts1=0x%.2x, ptsreq->pts2=0x%.2x, "
466 "ptsreq->pts3=0x%.2x\n", (unsigned int)ptsreq->protocol,
467 (unsigned int)ptsreq->flags, ptsreq->pts1, ptsreq->pts2,
468 ptsreq->pts3);
469
470 /* Fill PTS structure */
471 dev->pts[0] = 0xff;
472 dev->pts[1] = 0x00;
473 tmp = ptsreq->protocol;
474 while ((tmp = (tmp >> 1)) > 0)
475 dev->pts[1]++;
476 dev->proto = dev->pts[1]; /* Set new protocol */
477 dev->pts[1] = (0x01 << 4) | (dev->pts[1]);
478
479 /* Correct Fi/Di according to CM4000 Fi/Di table */
480 DEBUGP(5, dev, "Ta(1) from ATR is 0x%.2x\n", dev->ta1);
481 /* set Fi/Di according to ATR TA(1) */
482 dev->pts[2] = fi_di_table[dev->ta1 & 0x0F][(dev->ta1 >> 4) & 0x0F];
483
484 /* Calculate PCK character */
485 dev->pts[3] = dev->pts[0] ^ dev->pts[1] ^ dev->pts[2];
486
487 DEBUGP(5, dev, "pts0=%.2x, pts1=%.2x, pts2=%.2x, pts3=%.2x\n",
488 dev->pts[0], dev->pts[1], dev->pts[2], dev->pts[3]);
489
490 /* check card convention */
491 if (test_bit(IS_INVREV, &dev->flags))
492 str_invert_revert(dev->pts, 4);
493
494 /* reset SM */
495 xoutb(0x80, REG_FLAGS0(iobase));
496
497 /* Enable access to the message buffer */
498 DEBUGP(5, dev, "Enable access to the messages buffer\n");
499 dev->flags1 = 0x20 /* T_Active */
500 | (test_bit(IS_INVREV, &dev->flags) ? 0x02 : 0x00) /* inv parity */
501 | ((dev->baudv >> 8) & 0x01); /* MSB-baud */
502 xoutb(dev->flags1, REG_FLAGS1(iobase));
503
504 DEBUGP(5, dev, "Enable message buffer -> flags1 = 0x%.2x\n",
505 dev->flags1);
506
507 /* write challenge to the buffer */
508 DEBUGP(5, dev, "Write challenge to buffer: ");
509 for (i = 0; i < 4; i++) {
510 xoutb(i, REG_BUF_ADDR(iobase));
511 xoutb(dev->pts[i], REG_BUF_DATA(iobase)); /* buf data */
cbf624f0
DB		 512#ifdef CM4000_DEBUG
513 pr_debug("0x%.2x ", dev->pts[i]);
c1986ee9 514 }
cbf624f0 515 pr_debug("\n");
c1986ee9
HW		 516#else
517 }
518#endif
519
520 /* set number of bytes to write */
521 DEBUGP(5, dev, "Set number of bytes to write\n");
522 xoutb(0x04, REG_NUM_SEND(iobase));
523
524 /* Trigger CARDMAN CONTROLLER */
525 xoutb(0x50, REG_FLAGS0(iobase));
526
527 /* Monitor progress */
528 /* wait for xmit done */
529 DEBUGP(5, dev, "Waiting for NumRecBytes getting valid\n");
530
531 for (i = 0; i < 100; i++) {
532 if (inb(REG_FLAGS0(iobase)) & 0x08) {
533 DEBUGP(5, dev, "NumRecBytes is valid\n");
534 break;
535 }
536 mdelay(10);
537 }
538 if (i == 100) {
539 DEBUGP(5, dev, "Timeout waiting for NumRecBytes getting "
540 "valid\n");
541 rc = -EIO;
542 goto exit_setprotocol;
543 }
544
545 DEBUGP(5, dev, "Reading NumRecBytes\n");
546 for (i = 0; i < 100; i++) {
547 io_read_num_rec_bytes(iobase, &num_bytes_read);
548 if (num_bytes_read >= 4) {
549 DEBUGP(2, dev, "NumRecBytes = %i\n", num_bytes_read);
550 break;
551 }
552 mdelay(10);
553 }
554
555 /* check whether it is a short PTS reply? */
556 if (num_bytes_read == 3)
557 i = 0;
558
559 if (i == 100) {
560 DEBUGP(5, dev, "Timeout reading num_bytes_read\n");
561 rc = -EIO;
562 goto exit_setprotocol;
563 }
564
565 DEBUGP(5, dev, "Reset the CARDMAN CONTROLLER\n");
566 xoutb(0x80, REG_FLAGS0(iobase));
567
568 /* Read PPS reply */
569 DEBUGP(5, dev, "Read PPS reply\n");
570 for (i = 0; i < num_bytes_read; i++) {
571 xoutb(i, REG_BUF_ADDR(iobase));
572 pts_reply[i] = inb(REG_BUF_DATA(iobase));
573 }
574
cbf624f0 575#ifdef CM4000_DEBUG
c1986ee9
HW		 576 DEBUGP(2, dev, "PTSreply: ");
577 for (i = 0; i < num_bytes_read; i++) {
cbf624f0 578 pr_debug("0x%.2x ", pts_reply[i]);
c1986ee9 579 }
cbf624f0
DB		 580 pr_debug("\n");
581#endif /* CM4000_DEBUG */
c1986ee9
HW		 582
583 DEBUGP(5, dev, "Clear Tactive in Flags1\n");
584 xoutb(0x20, REG_FLAGS1(iobase));
585
586 /* Compare ptsreq and ptsreply */
587 if ((dev->pts[0] == pts_reply[0]) &&
588 (dev->pts[1] == pts_reply[1]) &&
589 (dev->pts[2] == pts_reply[2]) && (dev->pts[3] == pts_reply[3])) {
590 /* setcardparameter according to PPS */
591 dev->baudv = calc_baudv(dev->pts[2]);
592 set_cardparameter(dev);
593 } else if ((dev->pts[0] == pts_reply[0]) &&
594 ((dev->pts[1] & 0xef) == pts_reply[1]) &&
595 ((pts_reply[0] ^ pts_reply[1]) == pts_reply[2])) {
596 /* short PTS reply, set card parameter to default values */
597 dev->baudv = calc_baudv(0x11);
598 set_cardparameter(dev);
599 } else
600 rc = -EIO;
601
602exit_setprotocol:
603 DEBUGP(3, dev, "<- set_protocol\n");
604 return rc;
605}
606
ecb8a847 607static int io_detect_cm4000(unsigned int iobase, struct cm4000_dev *dev)
c1986ee9
HW		 608{
609
610 /* note: statemachine is assumed to be reset */
611 if (inb(REG_FLAGS0(iobase)) & 8) {
612 clear_bit(IS_ATR_VALID, &dev->flags);
613 set_bit(IS_CMM_ABSENT, &dev->flags);
614 return 0; /* detect CMM = 1 -> failure */
615 }
616 /* xoutb(0x40, REG_FLAGS1(iobase)); detectCMM */
617 xoutb(dev->flags1 | 0x40, REG_FLAGS1(iobase));
618 if ((inb(REG_FLAGS0(iobase)) & 8) == 0) {
619 clear_bit(IS_ATR_VALID, &dev->flags);
620 set_bit(IS_CMM_ABSENT, &dev->flags);
621 return 0; /* detect CMM=0 -> failure */
622 }
623 /* clear detectCMM again by restoring original flags1 */
624 xoutb(dev->flags1, REG_FLAGS1(iobase));
625 return 1;
626}
627
628static void terminate_monitor(struct cm4000_dev *dev)
629{
630
631 /* tell the monitor to stop and wait until
632 * it terminates.
633 */
634 DEBUGP(3, dev, "-> terminate_monitor\n");
635 wait_event_interruptible(dev->devq,
636 test_and_set_bit(LOCK_MONITOR,
637 (void *)&dev->flags));
638
639 /* now, LOCK_MONITOR has been set.
640 * allow a last cycle in the monitor.
641 * the monitor will indicate that it has
642 * finished by clearing this bit.
643 */
644 DEBUGP(5, dev, "Now allow last cycle of monitor!\n");
645 while (test_bit(LOCK_MONITOR, (void *)&dev->flags))
646 msleep(25);
647
648 DEBUGP(5, dev, "Delete timer\n");
649 del_timer_sync(&dev->timer);
cbf624f0 650#ifdef CM4000_DEBUG
c1986ee9
HW		 651 dev->monitor_running = 0;
652#endif
653
654 DEBUGP(3, dev, "<- terminate_monitor\n");
655}
656
657/*
658 * monitor the card every 50msec. as a side-effect, retrieve the
659 * atr once a card is inserted. another side-effect of retrieving the
660 * atr is that the card will be powered on, so there is no need to
661 * power on the card explictely from the application: the driver
662 * is already doing that for you.
663 */
664
665static void monitor_card(unsigned long p)
666{
667 struct cm4000_dev *dev = (struct cm4000_dev *) p;
ecb8a847 668 unsigned int iobase = dev->p_dev->io.BasePort1;
c1986ee9
HW		 669 unsigned short s;
670 struct ptsreq ptsreq;
671 int i, atrc;
672
673 DEBUGP(7, dev, "-> monitor_card\n");
674
675 /* if someone has set the lock for us: we're done! */
676 if (test_and_set_bit(LOCK_MONITOR, &dev->flags)) {
677 DEBUGP(4, dev, "About to stop monitor\n");
678 /* no */
679 dev->rlen =
680 dev->rpos =
681 dev->atr_csum = dev->atr_len_retry = dev->cwarn = 0;
682 dev->mstate = M_FETCH_ATR;
683 clear_bit(LOCK_MONITOR, &dev->flags);
684 /* close et al. are sleeping on devq, so wake it */
685 wake_up_interruptible(&dev->devq);
686 DEBUGP(2, dev, "<- monitor_card (we are done now)\n");
687 return;
688 }
689
690 /* try to lock io: if it is already locked, just add another timer */
691 if (test_and_set_bit(LOCK_IO, (void *)&dev->flags)) {
692 DEBUGP(4, dev, "Couldn't get IO lock\n");
693 goto return_with_timer;
694 }
695
696 /* is a card/a reader inserted at all ? */
697 dev->flags0 = xinb(REG_FLAGS0(iobase));
698 DEBUGP(7, dev, "dev->flags0 = 0x%2x\n", dev->flags0);
699 DEBUGP(7, dev, "smartcard present: %s\n",
700 dev->flags0 & 1 ? "yes" : "no");
701 DEBUGP(7, dev, "cardman present: %s\n",
702 dev->flags0 == 0xff ? "no" : "yes");
703
704 if ((dev->flags0 & 1) == 0 /* no smartcard inserted */
705 || dev->flags0 == 0xff) { /* no cardman inserted */
706 /* no */
707 dev->rlen =
708 dev->rpos =
709 dev->atr_csum = dev->atr_len_retry = dev->cwarn = 0;
710 dev->mstate = M_FETCH_ATR;
711
712 dev->flags &= 0x000000ff; /* only keep IO and MONITOR locks */
713
714 if (dev->flags0 == 0xff) {
715 DEBUGP(4, dev, "set IS_CMM_ABSENT bit\n");
716 set_bit(IS_CMM_ABSENT, &dev->flags);
717 } else if (test_bit(IS_CMM_ABSENT, &dev->flags)) {
718 DEBUGP(4, dev, "clear IS_CMM_ABSENT bit "
719 "(card is removed)\n");
720 clear_bit(IS_CMM_ABSENT, &dev->flags);
721 }
722
723 goto release_io;
724 } else if ((dev->flags0 & 1) && test_bit(IS_CMM_ABSENT, &dev->flags)) {
725 /* cardman and card present but cardman was absent before
726 * (after suspend with inserted card) */
727 DEBUGP(4, dev, "clear IS_CMM_ABSENT bit (card is inserted)\n");
728 clear_bit(IS_CMM_ABSENT, &dev->flags);
729 }
730
731 if (test_bit(IS_ATR_VALID, &dev->flags) == 1) {
732 DEBUGP(7, dev, "believe ATR is already valid (do nothing)\n");
733 goto release_io;
734 }
735
736 switch (dev->mstate) {
737 unsigned char flags0;
738 case M_CARDOFF:
739 DEBUGP(4, dev, "M_CARDOFF\n");
740 flags0 = inb(REG_FLAGS0(iobase));
741 if (flags0 & 0x02) {
742 /* wait until Flags0 indicate power is off */
743 dev->mdelay = T_10MSEC;
744 } else {
745 /* Flags0 indicate power off and no card inserted now;
746 * Reset CARDMAN CONTROLLER */
747 xoutb(0x80, REG_FLAGS0(iobase));
748
749 /* prepare for fetching ATR again: after card off ATR
750 * is read again automatically */
751 dev->rlen =
752 dev->rpos =
753 dev->atr_csum =
754 dev->atr_len_retry = dev->cwarn = 0;
755 dev->mstate = M_FETCH_ATR;
756
757 /* minimal gap between CARDOFF and read ATR is 50msec */
758 dev->mdelay = T_50MSEC;
759 }
760 break;
761 case M_FETCH_ATR:
762 DEBUGP(4, dev, "M_FETCH_ATR\n");
763 xoutb(0x80, REG_FLAGS0(iobase));
764 DEBUGP(4, dev, "Reset BAUDV to 9600\n");
765 dev->baudv = 0x173; /* 9600 */
766 xoutb(0x02, REG_STOPBITS(iobase)); /* stopbits=2 */
767 xoutb(0x73, REG_BAUDRATE(iobase)); /* baud value */
768 xoutb(0x21, REG_FLAGS1(iobase)); /* T_Active=1, baud
769 value */
770 /* warm start vs. power on: */
771 xoutb(dev->flags0 & 2 ? 0x46 : 0x44, REG_FLAGS0(iobase));
772 dev->mdelay = T_40MSEC;
773 dev->mstate = M_TIMEOUT_WAIT;
774 break;
775 case M_TIMEOUT_WAIT:
776 DEBUGP(4, dev, "M_TIMEOUT_WAIT\n");
777 /* numRecBytes */
778 io_read_num_rec_bytes(iobase, &dev->atr_len);
779 dev->mdelay = T_10MSEC;
780 dev->mstate = M_READ_ATR_LEN;
781 break;
782 case M_READ_ATR_LEN:
783 DEBUGP(4, dev, "M_READ_ATR_LEN\n");
784 /* infinite loop possible, since there is no timeout */
785
786#define MAX_ATR_LEN_RETRY 100
787
788 if (dev->atr_len == io_read_num_rec_bytes(iobase, &s)) {
789 if (dev->atr_len_retry++ >= MAX_ATR_LEN_RETRY) { /* + XX msec */
790 dev->mdelay = T_10MSEC;
791 dev->mstate = M_READ_ATR;
792 }
793 } else {
794 dev->atr_len = s;
795 dev->atr_len_retry = 0; /* set new timeout */
796 }
797
798 DEBUGP(4, dev, "Current ATR_LEN = %i\n", dev->atr_len);
799 break;
800 case M_READ_ATR:
801 DEBUGP(4, dev, "M_READ_ATR\n");
802 xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */
803 for (i = 0; i < dev->atr_len; i++) {
804 xoutb(i, REG_BUF_ADDR(iobase));
805 dev->atr[i] = inb(REG_BUF_DATA(iobase));
806 }
807 /* Deactivate T_Active flags */
808 DEBUGP(4, dev, "Deactivate T_Active flags\n");
809 dev->flags1 = 0x01;
810 xoutb(dev->flags1, REG_FLAGS1(iobase));
811
812 /* atr is present (which doesnt mean it's valid) */
813 set_bit(IS_ATR_PRESENT, &dev->flags);
814 if (dev->atr[0] == 0x03)
815 str_invert_revert(dev->atr, dev->atr_len);
816 atrc = parse_atr(dev);
817 if (atrc == 0) { /* atr invalid */
818 dev->mdelay = 0;
819 dev->mstate = M_BAD_CARD;
820 } else {
821 dev->mdelay = T_50MSEC;
822 dev->mstate = M_ATR_PRESENT;
823 set_bit(IS_ATR_VALID, &dev->flags);
824 }
825
826 if (test_bit(IS_ATR_VALID, &dev->flags) == 1) {
827 DEBUGP(4, dev, "monitor_card: ATR valid\n");
828 /* if ta1 == 0x11, no PPS necessary (default values) */
829 /* do not do PPS with multi protocol cards */
830 if ((test_bit(IS_AUTOPPS_ACT, &dev->flags) == 0) &&
831 (dev->ta1 != 0x11) &&
832 !(test_bit(IS_ANY_T0, &dev->flags) &&
833 test_bit(IS_ANY_T1, &dev->flags))) {
834 DEBUGP(4, dev, "Perform AUTOPPS\n");
835 set_bit(IS_AUTOPPS_ACT, &dev->flags);
836 ptsreq.protocol = ptsreq.protocol =
837 (0x01 << dev->proto);
838 ptsreq.flags = 0x01;
839 ptsreq.pts1 = 0x00;
840 ptsreq.pts2 = 0x00;
841 ptsreq.pts3 = 0x00;
842 if (set_protocol(dev, &ptsreq) == 0) {
843 DEBUGP(4, dev, "AUTOPPS ret SUCC\n");
844 clear_bit(IS_AUTOPPS_ACT, &dev->flags);
845 wake_up_interruptible(&dev->atrq);
846 } else {
847 DEBUGP(4, dev, "AUTOPPS failed: "
848 "repower using defaults\n");
849 /* prepare for repowering */
850 clear_bit(IS_ATR_PRESENT, &dev->flags);
851 clear_bit(IS_ATR_VALID, &dev->flags);
852 dev->rlen =
853 dev->rpos =
854 dev->atr_csum =
855 dev->atr_len_retry = dev->cwarn = 0;
856 dev->mstate = M_FETCH_ATR;
857
858 dev->mdelay = T_50MSEC;
859 }
860 } else {
861 /* for cards which use slightly different
862 * params (extra guard time) */
863 set_cardparameter(dev);
864 if (test_bit(IS_AUTOPPS_ACT, &dev->flags) == 1)
865 DEBUGP(4, dev, "AUTOPPS already active "
866 "2nd try:use default values\n");
867 if (dev->ta1 == 0x11)
868 DEBUGP(4, dev, "No AUTOPPS necessary "
869 "TA(1)==0x11\n");
870 if (test_bit(IS_ANY_T0, &dev->flags)
871 && test_bit(IS_ANY_T1, &dev->flags))
872 DEBUGP(4, dev, "Do NOT perform AUTOPPS "
873 "with multiprotocol cards\n");
874 clear_bit(IS_AUTOPPS_ACT, &dev->flags);
875 wake_up_interruptible(&dev->atrq);
876 }
877 } else {
878 DEBUGP(4, dev, "ATR invalid\n");
879 wake_up_interruptible(&dev->atrq);
880 }
881 break;
882 case M_BAD_CARD:
883 DEBUGP(4, dev, "M_BAD_CARD\n");
884 /* slow down warning, but prompt immediately after insertion */
885 if (dev->cwarn == 0 || dev->cwarn == 10) {
886 set_bit(IS_BAD_CARD, &dev->flags);
887 printk(KERN_WARNING MODULE_NAME ": device %s: ",
888 dev->node.dev_name);
889 if (test_bit(IS_BAD_CSUM, &dev->flags)) {
890 DEBUGP(4, dev, "ATR checksum (0x%.2x, should "
891 "be zero) failed\n", dev->atr_csum);
892 }
cbf624f0 893#ifdef CM4000_DEBUG
c1986ee9
HW		 894 else if (test_bit(IS_BAD_LENGTH, &dev->flags)) {
895 DEBUGP(4, dev, "ATR length error\n");
896 } else {
897 DEBUGP(4, dev, "card damaged or wrong way "
898 "inserted\n");
899 }
900#endif
901 dev->cwarn = 0;
902 wake_up_interruptible(&dev->atrq); /* wake open */
903 }
904 dev->cwarn++;
905 dev->mdelay = T_100MSEC;
906 dev->mstate = M_FETCH_ATR;
907 break;
908 default:
909 DEBUGP(7, dev, "Unknown action\n");
910 break; /* nothing */
911 }
912
913release_io:
914 DEBUGP(7, dev, "release_io\n");
915 clear_bit(LOCK_IO, &dev->flags);
916 wake_up_interruptible(&dev->ioq); /* whoever needs IO */
917
918return_with_timer:
919 DEBUGP(7, dev, "<- monitor_card (returns with timer)\n");
40565f19 920 mod_timer(&dev->timer, jiffies + dev->mdelay);
c1986ee9
HW		 921 clear_bit(LOCK_MONITOR, &dev->flags);
922}
923
924/* Interface to userland (file_operations) */
925
926static ssize_t cmm_read(struct file *filp, __user char *buf, size_t count,
927 loff_t *ppos)
928{
929 struct cm4000_dev *dev = filp->private_data;
ecb8a847 930 unsigned int iobase = dev->p_dev->io.BasePort1;
c1986ee9
HW		 931 ssize_t rc;
932 int i, j, k;
933
934 DEBUGP(2, dev, "-> cmm_read(%s,%d)\n", current->comm, current->pid);
935
936 if (count == 0) /* according to manpage */
937 return 0;
938
e2d40963 939 if (!pcmcia_dev_present(dev->p_dev) || /* device removed */
c1986ee9
HW		 940 test_bit(IS_CMM_ABSENT, &dev->flags))
941 return -ENODEV;
942
943 if (test_bit(IS_BAD_CSUM, &dev->flags))
944 return -EIO;
945
946 /* also see the note about this in cmm_write */
947 if (wait_event_interruptible
948 (dev->atrq,
949 ((filp->f_flags & O_NONBLOCK)
950 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) {
951 if (filp->f_flags & O_NONBLOCK)
952 return -EAGAIN;
953 return -ERESTARTSYS;
954 }
955
956 if (test_bit(IS_ATR_VALID, &dev->flags) == 0)
957 return -EIO;
958
959 /* this one implements blocking IO */
960 if (wait_event_interruptible
961 (dev->readq,
962 ((filp->f_flags & O_NONBLOCK) || (dev->rpos < dev->rlen)))) {
963 if (filp->f_flags & O_NONBLOCK)
964 return -EAGAIN;
965 return -ERESTARTSYS;
966 }
967
968 /* lock io */
969 if (wait_event_interruptible
970 (dev->ioq,
971 ((filp->f_flags & O_NONBLOCK)
972 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) {
973 if (filp->f_flags & O_NONBLOCK)
974 return -EAGAIN;
975 return -ERESTARTSYS;
976 }
977
978 rc = 0;
979 dev->flags0 = inb(REG_FLAGS0(iobase));
980 if ((dev->flags0 & 1) == 0 /* no smartcard inserted */
981 || dev->flags0 == 0xff) { /* no cardman inserted */
982 clear_bit(IS_ATR_VALID, &dev->flags);
983 if (dev->flags0 & 1) {
984 set_bit(IS_CMM_ABSENT, &dev->flags);
985 rc = -ENODEV;
986 }
987 rc = -EIO;
988 goto release_io;
989 }
990
991 DEBUGP(4, dev, "begin read answer\n");
992 j = min(count, (size_t)(dev->rlen - dev->rpos));
993 k = dev->rpos;
994 if (k + j > 255)
995 j = 256 - k;
996 DEBUGP(4, dev, "read1 j=%d\n", j);
997 for (i = 0; i < j; i++) {
998 xoutb(k++, REG_BUF_ADDR(iobase));
999 dev->rbuf[i] = xinb(REG_BUF_DATA(iobase));
1000 }
1001 j = min(count, (size_t)(dev->rlen - dev->rpos));
1002 if (k + j > 255) {
1003 DEBUGP(4, dev, "read2 j=%d\n", j);
1004 dev->flags1 |= 0x10; /* MSB buf addr set */
1005 xoutb(dev->flags1, REG_FLAGS1(iobase));
1006 for (; i < j; i++) {
1007 xoutb(k++, REG_BUF_ADDR(iobase));
1008 dev->rbuf[i] = xinb(REG_BUF_DATA(iobase));
1009 }
1010 }
1011
470967dc 1012 if (dev->proto == 0 && count > dev->rlen - dev->rpos && i) {
c1986ee9
HW		 1013 DEBUGP(4, dev, "T=0 and count > buffer\n");
1014 dev->rbuf[i] = dev->rbuf[i - 1];
1015 dev->rbuf[i - 1] = dev->procbyte;
1016 j++;
1017 }
1018 count = j;
1019
1020 dev->rpos = dev->rlen + 1;
1021
1022 /* Clear T1Active */
1023 DEBUGP(4, dev, "Clear T1Active\n");
1024 dev->flags1 &= 0xdf;
1025 xoutb(dev->flags1, REG_FLAGS1(iobase));
1026
1027 xoutb(0, REG_FLAGS1(iobase)); /* clear detectCMM */
1028 /* last check before exit */
07a71415
DC		 1029 if (!io_detect_cm4000(iobase, dev)) {
1030 rc = -ENODEV;
1031 goto release_io;
1032 }
c1986ee9
HW		 1033
1034 if (test_bit(IS_INVREV, &dev->flags) && count > 0)
1035 str_invert_revert(dev->rbuf, count);
1036
1037 if (copy_to_user(buf, dev->rbuf, count))
07a71415 1038 rc = -EFAULT;
c1986ee9
HW		 1039
1040release_io:
1041 clear_bit(LOCK_IO, &dev->flags);
1042 wake_up_interruptible(&dev->ioq);
1043
1044 DEBUGP(2, dev, "<- cmm_read returns: rc = %Zi\n",
1045 (rc < 0 ? rc : count));
1046 return rc < 0 ? rc : count;
1047}
1048
1049static ssize_t cmm_write(struct file *filp, const char __user *buf,
1050 size_t count, loff_t *ppos)
1051{
c6be9c5a 1052 struct cm4000_dev *dev = filp->private_data;
ecb8a847 1053 unsigned int iobase = dev->p_dev->io.BasePort1;
c1986ee9
HW		 1054 unsigned short s;
1055 unsigned char tmp;
1056 unsigned char infolen;
1057 unsigned char sendT0;
1058 unsigned short nsend;
1059 unsigned short nr;
1060 ssize_t rc;
1061 int i;
1062
1063 DEBUGP(2, dev, "-> cmm_write(%s,%d)\n", current->comm, current->pid);
1064
1065 if (count == 0) /* according to manpage */
1066 return 0;
1067
1068 if (dev->proto == 0 && count < 4) {
1069 /* T0 must have at least 4 bytes */
1070 DEBUGP(4, dev, "T0 short write\n");
1071 return -EIO;
1072 }
1073
1074 nr = count & 0x1ff; /* max bytes to write */
1075
1076 sendT0 = dev->proto ? 0 : nr > 5 ? 0x08 : 0;
1077
e2d40963 1078 if (!pcmcia_dev_present(dev->p_dev) || /* device removed */
c1986ee9
HW		 1079 test_bit(IS_CMM_ABSENT, &dev->flags))
1080 return -ENODEV;
1081
1082 if (test_bit(IS_BAD_CSUM, &dev->flags)) {
1083 DEBUGP(4, dev, "bad csum\n");
1084 return -EIO;
1085 }
1086
1087 /*
1088 * wait for atr to become valid.
1089 * note: it is important to lock this code. if we dont, the monitor
59c51591 1090 * could be run between test_bit and the call to sleep on the
c1986ee9
HW		 1091 * atr-queue. if *then* the monitor detects atr valid, it will wake up
1092 * any process on the atr-queue, *but* since we have been interrupted,
1093 * we do not yet sleep on this queue. this would result in a missed
1094 * wake_up and the calling process would sleep forever (until
1095 * interrupted). also, do *not* restore_flags before sleep_on, because
1096 * this could result in the same situation!
1097 */
1098 if (wait_event_interruptible
1099 (dev->atrq,
1100 ((filp->f_flags & O_NONBLOCK)
1101 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) {
1102 if (filp->f_flags & O_NONBLOCK)
1103 return -EAGAIN;
1104 return -ERESTARTSYS;
1105 }
1106
1107 if (test_bit(IS_ATR_VALID, &dev->flags) == 0) { /* invalid atr */
1108 DEBUGP(4, dev, "invalid ATR\n");
1109 return -EIO;
1110 }
1111
1112 /* lock io */
1113 if (wait_event_interruptible
1114 (dev->ioq,
1115 ((filp->f_flags & O_NONBLOCK)
1116 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) {
1117 if (filp->f_flags & O_NONBLOCK)
1118 return -EAGAIN;
1119 return -ERESTARTSYS;
1120 }
1121
1122 if (copy_from_user(dev->sbuf, buf, ((count > 512) ? 512 : count)))
1123 return -EFAULT;
1124
1125 rc = 0;
1126 dev->flags0 = inb(REG_FLAGS0(iobase));
1127 if ((dev->flags0 & 1) == 0 /* no smartcard inserted */
1128 || dev->flags0 == 0xff) { /* no cardman inserted */
1129 clear_bit(IS_ATR_VALID, &dev->flags);
1130 if (dev->flags0 & 1) {
1131 set_bit(IS_CMM_ABSENT, &dev->flags);
1132 rc = -ENODEV;
1133 } else {
1134 DEBUGP(4, dev, "IO error\n");
1135 rc = -EIO;
1136 }
1137 goto release_io;
1138 }
1139
1140 xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */
1141
1142 if (!io_detect_cm4000(iobase, dev)) {
1143 rc = -ENODEV;
1144 goto release_io;
1145 }
1146
1147 /* reflect T=0 send/read mode in flags1 */
1148 dev->flags1 |= (sendT0);
1149
1150 set_cardparameter(dev);
1151
1152 /* dummy read, reset flag procedure received */
1153 tmp = inb(REG_FLAGS1(iobase));
1154
1155 dev->flags1 = 0x20 /* T_Active */
1156 | (sendT0)
1157 | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0)/* inverse parity */
1158 | (((dev->baudv - 1) & 0x0100) >> 8); /* MSB-Baud */
1159 DEBUGP(1, dev, "set dev->flags1 = 0x%.2x\n", dev->flags1);
1160 xoutb(dev->flags1, REG_FLAGS1(iobase));
1161
1162 /* xmit data */
1163 DEBUGP(4, dev, "Xmit data\n");
1164 for (i = 0; i < nr; i++) {
1165 if (i >= 256) {
1166 dev->flags1 = 0x20 /* T_Active */
1167 | (sendT0) /* SendT0 */
1168 /* inverse parity: */
1169 | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0)
1170 | (((dev->baudv - 1) & 0x0100) >> 8) /* MSB-Baud */
1171 | 0x10; /* set address high */
1172 DEBUGP(4, dev, "dev->flags = 0x%.2x - set address "
1173 "high\n", dev->flags1);
1174 xoutb(dev->flags1, REG_FLAGS1(iobase));
1175 }
1176 if (test_bit(IS_INVREV, &dev->flags)) {
1177 DEBUGP(4, dev, "Apply inverse convention for 0x%.2x "
1178 "-> 0x%.2x\n", (unsigned char)dev->sbuf[i],
1179 invert_revert(dev->sbuf[i]));
1180 xoutb(i, REG_BUF_ADDR(iobase));
1181 xoutb(invert_revert(dev->sbuf[i]),
1182 REG_BUF_DATA(iobase));
1183 } else {
1184 xoutb(i, REG_BUF_ADDR(iobase));
1185 xoutb(dev->sbuf[i], REG_BUF_DATA(iobase));
1186 }
1187 }
1188 DEBUGP(4, dev, "Xmit done\n");
1189
1190 if (dev->proto == 0) {
1191 /* T=0 proto: 0 byte reply */
1192 if (nr == 4) {
1193 DEBUGP(4, dev, "T=0 assumes 0 byte reply\n");
1194 xoutb(i, REG_BUF_ADDR(iobase));
1195 if (test_bit(IS_INVREV, &dev->flags))
1196 xoutb(0xff, REG_BUF_DATA(iobase));
1197 else
1198 xoutb(0x00, REG_BUF_DATA(iobase));
1199 }
1200
1201 /* numSendBytes */
1202 if (sendT0)
1203 nsend = nr;
1204 else {
1205 if (nr == 4)
1206 nsend = 5;
1207 else {
1208 nsend = 5 + (unsigned char)dev->sbuf[4];
1209 if (dev->sbuf[4] == 0)
1210 nsend += 0x100;
1211 }
1212 }
1213 } else
1214 nsend = nr;
1215
1216 /* T0: output procedure byte */
1217 if (test_bit(IS_INVREV, &dev->flags)) {
1218 DEBUGP(4, dev, "T=0 set Procedure byte (inverse-reverse) "
1219 "0x%.2x\n", invert_revert(dev->sbuf[1]));
1220 xoutb(invert_revert(dev->sbuf[1]), REG_NUM_BYTES(iobase));
1221 } else {
1222 DEBUGP(4, dev, "T=0 set Procedure byte 0x%.2x\n", dev->sbuf[1]);
1223 xoutb(dev->sbuf[1], REG_NUM_BYTES(iobase));
1224 }
1225
1226 DEBUGP(1, dev, "set NumSendBytes = 0x%.2x\n",
1227 (unsigned char)(nsend & 0xff));
1228 xoutb((unsigned char)(nsend & 0xff), REG_NUM_SEND(iobase));
1229
1230 DEBUGP(1, dev, "Trigger CARDMAN CONTROLLER (0x%.2x)\n",
1231 0x40 /* SM_Active */
1232 | (dev->flags0 & 2 ? 0 : 4) /* power on if needed */
1233 |(dev->proto ? 0x10 : 0x08) /* T=1/T=0 */
1234 |(nsend & 0x100) >> 8 /* MSB numSendBytes */ );
1235 xoutb(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 REG_FLAGS0(iobase));
1240
1241 /* wait for xmit done */
1242 if (dev->proto == 1) {
1243 DEBUGP(4, dev, "Wait for xmit done\n");
1244 for (i = 0; i < 1000; i++) {
1245 if (inb(REG_FLAGS0(iobase)) & 0x08)
1246 break;
1247 msleep_interruptible(10);
1248 }
1249 if (i == 1000) {
1250 DEBUGP(4, dev, "timeout waiting for xmit done\n");
1251 rc = -EIO;
1252 goto release_io;
1253 }
1254 }
1255
1256 /* T=1: wait for infoLen */
1257
1258 infolen = 0;
1259 if (dev->proto) {
1260 /* wait until infoLen is valid */
1261 for (i = 0; i < 6000; i++) { /* max waiting time of 1 min */
1262 io_read_num_rec_bytes(iobase, &s);
1263 if (s >= 3) {
1264 infolen = inb(REG_FLAGS1(iobase));
1265 DEBUGP(4, dev, "infolen=%d\n", infolen);
1266 break;
1267 }
1268 msleep_interruptible(10);
1269 }
1270 if (i == 6000) {
1271 DEBUGP(4, dev, "timeout waiting for infoLen\n");
1272 rc = -EIO;
1273 goto release_io;
1274 }
1275 } else
1276 clear_bit(IS_PROCBYTE_PRESENT, &dev->flags);
1277
1278 /* numRecBytes | bit9 of numRecytes */
1279 io_read_num_rec_bytes(iobase, &dev->rlen);
1280 for (i = 0; i < 600; i++) { /* max waiting time of 2 sec */
1281 if (dev->proto) {
1282 if (dev->rlen >= infolen + 4)
1283 break;
1284 }
1285 msleep_interruptible(10);
1286 /* numRecBytes | bit9 of numRecytes */
1287 io_read_num_rec_bytes(iobase, &s);
1288 if (s > dev->rlen) {
1289 DEBUGP(1, dev, "NumRecBytes inc (reset timeout)\n");
1290 i = 0; /* reset timeout */
1291 dev->rlen = s;
1292 }
1293 /* T=0: we are done when numRecBytes doesn't
1294 * increment any more and NoProcedureByte
1295 * is set and numRecBytes == bytes sent + 6
1296 * (header bytes + data + 1 for sw2)
1297 * except when the card replies an error
1298 * which means, no data will be sent back.
1299 */
1300 else if (dev->proto == 0) {
1301 if ((inb(REG_BUF_ADDR(iobase)) & 0x80)) {
1302 /* no procedure byte received since last read */
1303 DEBUGP(1, dev, "NoProcedure byte set\n");
1304 /* i=0; */
1305 } else {
1306 /* procedure byte received since last read */
1307 DEBUGP(1, dev, "NoProcedure byte unset "
1308 "(reset timeout)\n");
1309 dev->procbyte = inb(REG_FLAGS1(iobase));
1310 DEBUGP(1, dev, "Read procedure byte 0x%.2x\n",
1311 dev->procbyte);
1312 i = 0; /* resettimeout */
1313 }
1314 if (inb(REG_FLAGS0(iobase)) & 0x08) {
1315 DEBUGP(1, dev, "T0Done flag (read reply)\n");
1316 break;
1317 }
1318 }
1319 if (dev->proto)
1320 infolen = inb(REG_FLAGS1(iobase));
1321 }
1322 if (i == 600) {
1323 DEBUGP(1, dev, "timeout waiting for numRecBytes\n");
1324 rc = -EIO;
1325 goto release_io;
1326 } else {
1327 if (dev->proto == 0) {
1328 DEBUGP(1, dev, "Wait for T0Done bit to be set\n");
1329 for (i = 0; i < 1000; i++) {
1330 if (inb(REG_FLAGS0(iobase)) & 0x08)
1331 break;
1332 msleep_interruptible(10);
1333 }
1334 if (i == 1000) {
1335 DEBUGP(1, dev, "timeout waiting for T0Done\n");
1336 rc = -EIO;
1337 goto release_io;
1338 }
1339
1340 dev->procbyte = inb(REG_FLAGS1(iobase));
1341 DEBUGP(4, dev, "Read procedure byte 0x%.2x\n",
1342 dev->procbyte);
1343
1344 io_read_num_rec_bytes(iobase, &dev->rlen);
1345 DEBUGP(4, dev, "Read NumRecBytes = %i\n", dev->rlen);
1346
1347 }
1348 }
1349 /* T=1: read offset=zero, T=0: read offset=after challenge */
1350 dev->rpos = dev->proto ? 0 : nr == 4 ? 5 : nr > dev->rlen ? 5 : nr;
1351 DEBUGP(4, dev, "dev->rlen = %i, dev->rpos = %i, nr = %i\n",
1352 dev->rlen, dev->rpos, nr);
1353
1354release_io:
1355 DEBUGP(4, dev, "Reset SM\n");
1356 xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */
1357
1358 if (rc < 0) {
1359 DEBUGP(4, dev, "Write failed but clear T_Active\n");
1360 dev->flags1 &= 0xdf;
1361 xoutb(dev->flags1, REG_FLAGS1(iobase));
1362 }
1363
1364 clear_bit(LOCK_IO, &dev->flags);
1365 wake_up_interruptible(&dev->ioq);
1366 wake_up_interruptible(&dev->readq); /* tell read we have data */
1367
1368 /* ITSEC E2: clear write buffer */
1369 memset((char *)dev->sbuf, 0, 512);
1370
1371 /* return error or actually written bytes */
1372 DEBUGP(2, dev, "<- cmm_write\n");
1373 return rc < 0 ? rc : nr;
1374}
1375
1376static void start_monitor(struct cm4000_dev *dev)
1377{
1378 DEBUGP(3, dev, "-> start_monitor\n");
1379 if (!dev->monitor_running) {
1380 DEBUGP(5, dev, "create, init and add timer\n");
40565f19 1381 setup_timer(&dev->timer, monitor_card, (unsigned long)dev);
c1986ee9 1382 dev->monitor_running = 1;
40565f19 1383 mod_timer(&dev->timer, jiffies);
c1986ee9
HW		 1384 } else
1385 DEBUGP(5, dev, "monitor already running\n");
1386 DEBUGP(3, dev, "<- start_monitor\n");
1387}
1388
1389static void stop_monitor(struct cm4000_dev *dev)
1390{
1391 DEBUGP(3, dev, "-> stop_monitor\n");
1392 if (dev->monitor_running) {
1393 DEBUGP(5, dev, "stopping monitor\n");
1394 terminate_monitor(dev);
1395 /* reset monitor SM */
1396 clear_bit(IS_ATR_VALID, &dev->flags);
1397 clear_bit(IS_ATR_PRESENT, &dev->flags);
1398 } else
1399 DEBUGP(5, dev, "monitor already stopped\n");
1400 DEBUGP(3, dev, "<- stop_monitor\n");
1401}
1402
4cf974c5 1403static long cmm_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
c1986ee9
HW		 1404{
1405 struct cm4000_dev *dev = filp->private_data;
ecb8a847 1406 unsigned int iobase = dev->p_dev->io.BasePort1;
4cf974c5 1407 struct inode *inode = filp->f_path.dentry->d_inode;
fba395ee 1408 struct pcmcia_device *link;
c1986ee9
HW		 1409 int size;
1410 int rc;
c4aa02eb 1411 void __user *argp = (void __user *)arg;
cbf624f0 1412#ifdef CM4000_DEBUG
c1986ee9
HW		 1413 char *ioctl_names[CM_IOC_MAXNR + 1] = {
1414 [_IOC_NR(CM_IOCGSTATUS)] "CM_IOCGSTATUS",
1415 [_IOC_NR(CM_IOCGATR)] "CM_IOCGATR",
1416 [_IOC_NR(CM_IOCARDOFF)] "CM_IOCARDOFF",
1417 [_IOC_NR(CM_IOCSPTS)] "CM_IOCSPTS",
1418 [_IOC_NR(CM_IOSDBGLVL)] "CM4000_DBGLVL",
1419 };
c1986ee9
HW		 1420 DEBUGP(3, dev, "cmm_ioctl(device=%d.%d) %s\n", imajor(inode),
1421 iminor(inode), ioctl_names[_IOC_NR(cmd)]);
cbf624f0 1422#endif
c1986ee9 1423
4cf974c5
AC		 1424 lock_kernel();
1425 rc = -ENODEV;
c1986ee9 1426 link = dev_table[iminor(inode)];
9940ec36 1427 if (!pcmcia_dev_present(link)) {
c1986ee9 1428 DEBUGP(4, dev, "DEV_OK false\n");
4cf974c5 1429 goto out;
c1986ee9
HW		 1430 }
1431
1432 if (test_bit(IS_CMM_ABSENT, &dev->flags)) {
1433 DEBUGP(4, dev, "CMM_ABSENT flag set\n");
4cf974c5 1434 goto out;
c1986ee9 1435 }
d93c768e 1436 rc = -EINVAL;
c1986ee9
HW		 1437
1438 if (_IOC_TYPE(cmd) != CM_IOC_MAGIC) {
1439 DEBUGP(4, dev, "ioctype mismatch\n");
4cf974c5 1440 goto out;
c1986ee9
HW		 1441 }
1442 if (_IOC_NR(cmd) > CM_IOC_MAXNR) {
1443 DEBUGP(4, dev, "iocnr mismatch\n");
4cf974c5 1444 goto out;
c1986ee9
HW		 1445 }
1446 size = _IOC_SIZE(cmd);
4cf974c5 1447 rc = -EFAULT;
c1986ee9
HW		 1448 DEBUGP(4, dev, "iocdir=%.4x iocr=%.4x iocw=%.4x iocsize=%d cmd=%.4x\n",
1449 _IOC_DIR(cmd), _IOC_READ, _IOC_WRITE, size, cmd);
1450
1451 if (_IOC_DIR(cmd) & _IOC_READ) {
c4aa02eb 1452 if (!access_ok(VERIFY_WRITE, argp, size))
4cf974c5 1453 goto out;
c1986ee9
HW		 1454 }
1455 if (_IOC_DIR(cmd) & _IOC_WRITE) {
c4aa02eb 1456 if (!access_ok(VERIFY_READ, argp, size))
4cf974c5 1457 goto out;
c1986ee9 1458 }
4cf974c5 1459 rc = 0;
c1986ee9
HW		 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;
c4aa02eb 1478 if (copy_to_user(argp, &status, sizeof(int)))
4cf974c5 1479 rc = -EFAULT;
c1986ee9 1480 }
4cf974c5 1481 break;
c1986ee9
HW		 1482 case CM_IOCGATR:
1483 DEBUGP(4, dev, "... in CM_IOCGATR\n");
1484 {
c4aa02eb 1485 struct atreq __user *atreq = argp;
c1986ee9
HW		 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)
4cf974c5
AC		 1494 rc = -EAGAIN;
1495 else
1496 rc = -ERESTARTSYS;
1497 break;
c1986ee9
HW		 1498 }
1499
4cf974c5 1500 rc = -EFAULT;
c1986ee9
HW		 1501 if (test_bit(IS_ATR_VALID, &dev->flags) == 0) {
1502 tmp = -1;
1503 if (copy_to_user(&(atreq->atr_len), &tmp,
1504 sizeof(int)))
4cf974c5 1505 break;
c1986ee9
HW		 1506 } else {
1507 if (copy_to_user(atreq->atr, dev->atr,
1508 dev->atr_len))
4cf974c5 1509 break;
c1986ee9
HW		 1510
1511 tmp = dev->atr_len;
1512 if (copy_to_user(&(atreq->atr_len), &tmp, sizeof(int)))
4cf974c5 1513 break;
c1986ee9 1514 }
4cf974c5
AC		 1515 rc = 0;
1516 break;
c1986ee9
HW		 1517 }
1518 case CM_IOCARDOFF:
1519
cbf624f0 1520#ifdef CM4000_DEBUG
c1986ee9
HW		 1521 DEBUGP(4, dev, "... in CM_IOCARDOFF\n");
1522 if (dev->flags0 & 0x01) {
1523 DEBUGP(4, dev, " Card inserted\n");
1524 } else {
1525 DEBUGP(2, dev, " No card inserted\n");
1526 }
1527 if (dev->flags0 & 0x02) {
1528 DEBUGP(4, dev, " Card powered\n");
1529 } else {
1530 DEBUGP(2, dev, " Card not powered\n");
1531 }
1532#endif
1533
1534 /* is a card inserted and powered? */
1535 if ((dev->flags0 & 0x01) && (dev->flags0 & 0x02)) {
1536
1537 /* get IO lock */
1538 if (wait_event_interruptible
1539 (dev->ioq,
1540 ((filp->f_flags & O_NONBLOCK)
1541 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags)
1542 == 0)))) {
1543 if (filp->f_flags & O_NONBLOCK)
4cf974c5
AC		 1544 rc = -EAGAIN;
1545 else
1546 rc = -ERESTARTSYS;
1547 break;
c1986ee9
HW		 1548 }
1549 /* Set Flags0 = 0x42 */
1550 DEBUGP(4, dev, "Set Flags0=0x42 \n");
1551 xoutb(0x42, REG_FLAGS0(iobase));
1552 clear_bit(IS_ATR_PRESENT, &dev->flags);
1553 clear_bit(IS_ATR_VALID, &dev->flags);
1554 dev->mstate = M_CARDOFF;
1555 clear_bit(LOCK_IO, &dev->flags);
1556 if (wait_event_interruptible
1557 (dev->atrq,
1558 ((filp->f_flags & O_NONBLOCK)
1559 || (test_bit(IS_ATR_VALID, (void *)&dev->flags) !=
1560 0)))) {
1561 if (filp->f_flags & O_NONBLOCK)
4cf974c5
AC		 1562 rc = -EAGAIN;
1563 else
1564 rc = -ERESTARTSYS;
1565 break;
c1986ee9
HW		 1566 }
1567 }
1568 /* release lock */
1569 clear_bit(LOCK_IO, &dev->flags);
1570 wake_up_interruptible(&dev->ioq);
1571
69ae59d7
JS		 1572 rc = 0;
1573 break;
c1986ee9
HW		 1574 case CM_IOCSPTS:
1575 {
1576 struct ptsreq krnptsreq;
1577
c4aa02eb 1578 if (copy_from_user(&krnptsreq, argp,
4cf974c5
AC		 1579 sizeof(struct ptsreq))) {
1580 rc = -EFAULT;
1581 break;
1582 }
c1986ee9
HW		 1583
1584 rc = 0;
1585 DEBUGP(4, dev, "... in CM_IOCSPTS\n");
1586 /* wait for ATR to get valid */
1587 if (wait_event_interruptible
1588 (dev->atrq,
1589 ((filp->f_flags & O_NONBLOCK)
1590 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags)
1591 != 0)))) {
1592 if (filp->f_flags & O_NONBLOCK)
4cf974c5
AC		 1593 rc = -EAGAIN;
1594 else
1595 rc = -ERESTARTSYS;
1596 break;
c1986ee9
HW		 1597 }
1598 /* get IO lock */
1599 if (wait_event_interruptible
1600 (dev->ioq,
1601 ((filp->f_flags & O_NONBLOCK)
1602 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags)
1603 == 0)))) {
1604 if (filp->f_flags & O_NONBLOCK)
4cf974c5
AC		 1605 rc = -EAGAIN;
1606 else
1607 rc = -ERESTARTSYS;
1608 break;
c1986ee9
HW		 1609 }
1610
1611 if ((rc = set_protocol(dev, &krnptsreq)) != 0) {
1612 /* auto power_on again */
1613 dev->mstate = M_FETCH_ATR;
1614 clear_bit(IS_ATR_VALID, &dev->flags);
1615 }
1616 /* release lock */
1617 clear_bit(LOCK_IO, &dev->flags);
1618 wake_up_interruptible(&dev->ioq);
1619
1620 }
4cf974c5 1621 break;
cbf624f0
DB		 1622#ifdef CM4000_DEBUG
1623 case CM_IOSDBGLVL:
1624 rc = -ENOTTY;
4cf974c5 1625 break;
c1986ee9
HW		 1626#endif
1627 default:
1628 DEBUGP(4, dev, "... in default (unknown IOCTL code)\n");
4cf974c5 1629 rc = -ENOTTY;
c1986ee9 1630 }
4cf974c5
AC		 1631out:
1632 unlock_kernel();
1633 return rc;
c1986ee9
HW		 1634}
1635
1636static int cmm_open(struct inode *inode, struct file *filp)
1637{
1638 struct cm4000_dev *dev;
fba395ee 1639 struct pcmcia_device *link;
925796e0 1640 int minor = iminor(inode);
8b5332f6 1641 int ret;
c1986ee9
HW		 1642
1643 if (minor >= CM4000_MAX_DEV)
1644 return -ENODEV;
1645
8b5332f6 1646 lock_kernel();
c1986ee9 1647 link = dev_table[minor];
8b5332f6
JC		 1648 if (link == NULL || !pcmcia_dev_present(link)) {
1649 ret = -ENODEV;
1650 goto out;
1651 }
c1986ee9 1652
8b5332f6
JC		 1653 if (link->open) {
1654 ret = -EBUSY;
1655 goto out;
1656 }
c1986ee9
HW		 1657
1658 dev = link->priv;
1659 filp->private_data = dev;
1660
1661 DEBUGP(2, dev, "-> cmm_open(device=%d.%d process=%s,%d)\n",
1662 imajor(inode), minor, current->comm, current->pid);
1663
1664 /* init device variables, they may be "polluted" after close
1665 * or, the device may never have been closed (i.e. open failed)
1666 */
1667
1668 ZERO_DEV(dev);
1669
1670 /* opening will always block since the
1671 * monitor will be started by open, which
1672 * means we have to wait for ATR becoming
1673 * vaild = block until valid (or card
1674 * inserted)
1675 */
8b5332f6
JC		 1676 if (filp->f_flags & O_NONBLOCK) {
1677 ret = -EAGAIN;
1678 goto out;
1679 }
c1986ee9
HW		 1680
1681 dev->mdelay = T_50MSEC;
1682
1683 /* start monitoring the cardstatus */
1684 start_monitor(dev);
1685
1686 link->open = 1; /* only one open per device */
c1986ee9
HW		 1687
1688 DEBUGP(2, dev, "<- cmm_open\n");
8b5332f6
JC		 1689 ret = nonseekable_open(inode, filp);
1690out:
1691 unlock_kernel();
1692 return ret;
c1986ee9
HW		 1693}
1694
1695static int cmm_close(struct inode *inode, struct file *filp)
1696{
1697 struct cm4000_dev *dev;
fba395ee 1698 struct pcmcia_device *link;
c1986ee9
HW		 1699 int minor = iminor(inode);
1700
1701 if (minor >= CM4000_MAX_DEV)
1702 return -ENODEV;
1703
1704 link = dev_table[minor];
1705 if (link == NULL)
1706 return -ENODEV;
1707
1708 dev = link->priv;
1709
1710 DEBUGP(2, dev, "-> cmm_close(maj/min=%d.%d)\n",
1711 imajor(inode), minor);
1712
1713 stop_monitor(dev);
1714
1715 ZERO_DEV(dev);
1716
1717 link->open = 0; /* only one open per device */
1718 wake_up(&dev->devq); /* socket removed? */
1719
1720 DEBUGP(2, dev, "cmm_close\n");
1721 return 0;
1722}
1723
fba395ee 1724static void cmm_cm4000_release(struct pcmcia_device * link)
c1986ee9
HW		 1725{
1726 struct cm4000_dev *dev = link->priv;
1727
1728 /* dont terminate the monitor, rather rely on
1729 * close doing that for us.
1730 */
1731 DEBUGP(3, dev, "-> cmm_cm4000_release\n");
1732 while (link->open) {
1733 printk(KERN_INFO MODULE_NAME ": delaying release until "
1734 "process has terminated\n");
1735 /* note: don't interrupt us:
1736 * close the applications which own
1737 * the devices _first_ !
1738 */
1739 wait_event(dev->devq, (link->open == 0));
1740 }
1741 /* dev->devq=NULL; this cannot be zeroed earlier */
1742 DEBUGP(3, dev, "<- cmm_cm4000_release\n");
1743 return;
1744}
1745
1746/*==== Interface to PCMCIA Layer =======================================*/
1747
84e2d340
DB		 1748static int cm4000_config_check(struct pcmcia_device *p_dev,
1749 cistpl_cftable_entry_t *cfg,
8e2fc39d 1750 cistpl_cftable_entry_t *dflt,
ad913c11 1751 unsigned int vcc,
84e2d340
DB		 1752 void *priv_data)
1753{
84e2d340
DB		 1754 if (!cfg->io.nwin)
1755 return -ENODEV;
1756
1757 /* Get the IOaddr */
1758 p_dev->io.BasePort1 = cfg->io.win[0].base;
1759 p_dev->io.NumPorts1 = cfg->io.win[0].len;
1760 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
1761 if (!(cfg->io.flags & CISTPL_IO_8BIT))
1762 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
1763 if (!(cfg->io.flags & CISTPL_IO_16BIT))
1764 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
1765 p_dev->io.IOAddrLines = cfg->io.flags & CISTPL_IO_LINES_MASK;
1766
1767 return pcmcia_request_io(p_dev, &p_dev->io);
1768}
1769
15b99ac1 1770static int cm4000_config(struct pcmcia_device * link, int devno)
c1986ee9 1771{
c1986ee9 1772 struct cm4000_dev *dev;
c1986ee9
HW		 1773
1774 /* read the config-tuples */
84e2d340 1775 if (pcmcia_loop_config(link, cm4000_config_check, NULL))
c1986ee9
HW		 1776 goto cs_release;
1777
1778 link->conf.IntType = 00000002;
1779
84e2d340 1780 if (pcmcia_request_configuration(link, &link->conf))
c1986ee9 1781 goto cs_release;
c1986ee9
HW		 1782
1783 dev = link->priv;
1784 sprintf(dev->node.dev_name, DEVICE_NAME "%d", devno);
1785 dev->node.major = major;
1786 dev->node.minor = devno;
1787 dev->node.next = NULL;
fd238232 1788 link->dev_node = &dev->node;
c1986ee9 1789
15b99ac1 1790 return 0;
c1986ee9 1791
c1986ee9
HW		 1792cs_release:
1793 cm4000_release(link);
15b99ac1 1794 return -ENODEV;
c1986ee9
HW		 1795}
1796
fba395ee 1797static int cm4000_suspend(struct pcmcia_device *link)
98e4c28b 1798{
98e4c28b
DB		 1799 struct cm4000_dev *dev;
1800
1801 dev = link->priv;
98e4c28b
DB		 1802 stop_monitor(dev);
1803
1804 return 0;
1805}
1806
fba395ee 1807static int cm4000_resume(struct pcmcia_device *link)
98e4c28b 1808{
98e4c28b
DB		 1809 struct cm4000_dev *dev;
1810
1811 dev = link->priv;
98e4c28b
DB		 1812 if (link->open)
1813 start_monitor(dev);
1814
1815 return 0;
1816}
1817
fba395ee 1818static void cm4000_release(struct pcmcia_device *link)
c1986ee9 1819{
925796e0 1820 cmm_cm4000_release(link); /* delay release until device closed */
fba395ee 1821 pcmcia_disable_device(link);
c1986ee9
HW		 1822}
1823
15b99ac1 1824static int cm4000_probe(struct pcmcia_device *link)
c1986ee9
HW		 1825{
1826 struct cm4000_dev *dev;
15b99ac1 1827 int i, ret;
c1986ee9
HW		 1828
1829 for (i = 0; i < CM4000_MAX_DEV; i++)
1830 if (dev_table[i] == NULL)
1831 break;
1832
1833 if (i == CM4000_MAX_DEV) {
1834 printk(KERN_NOTICE MODULE_NAME ": all devices in use\n");
f8cfa618 1835 return -ENODEV;
c1986ee9
HW		 1836 }
1837
1838 /* create a new cm4000_cs device */
1839 dev = kzalloc(sizeof(struct cm4000_dev), GFP_KERNEL);
1840 if (dev == NULL)
f8cfa618 1841 return -ENOMEM;
c1986ee9 1842
fba395ee 1843 dev->p_dev = link;
c1986ee9
HW		 1844 link->priv = dev;
1845 link->conf.IntType = INT_MEMORY_AND_IO;
1846 dev_table[i] = link;
1847
c1986ee9
HW		 1848 init_waitqueue_head(&dev->devq);
1849 init_waitqueue_head(&dev->ioq);
1850 init_waitqueue_head(&dev->atrq);
1851 init_waitqueue_head(&dev->readq);
1852
15b99ac1 1853 ret = cm4000_config(link, i);
54493c10
AM		 1854 if (ret) {
1855 dev_table[i] = NULL;
1856 kfree(dev);
15b99ac1 1857 return ret;
54493c10 1858 }
f8cfa618 1859
03457cd4 1860 device_create(cmm_class, NULL, MKDEV(major, i), NULL, "cmm%d", i);
67bc6200 1861
f8cfa618 1862 return 0;
c1986ee9
HW		 1863}
1864
fba395ee 1865static void cm4000_detach(struct pcmcia_device *link)
c1986ee9
HW		 1866{
1867 struct cm4000_dev *dev = link->priv;
cc3b4866 1868 int devno;
c1986ee9 1869
cc3b4866
DB		 1870 /* find device */
1871 for (devno = 0; devno < CM4000_MAX_DEV; devno++)
1872 if (dev_table[devno] == link)
1873 break;
1874 if (devno == CM4000_MAX_DEV)
1875 return;
c1986ee9 1876
cc3b4866 1877 stop_monitor(dev);
c1986ee9 1878
e2d40963 1879 cm4000_release(link);
c1986ee9
HW		 1880
1881 dev_table[devno] = NULL;
54493c10 1882 kfree(dev);
c1986ee9 1883
07c015e7 1884 device_destroy(cmm_class, MKDEV(major, devno));
67bc6200 1885
c1986ee9
HW		 1886 return;
1887}
1888
62322d25 1889static const struct file_operations cm4000_fops = {
c1986ee9
HW		 1890 .owner = THIS_MODULE,
1891 .read = cmm_read,
1892 .write = cmm_write,
4cf974c5 1893 .unlocked_ioctl = cmm_ioctl,
c1986ee9
HW		 1894 .open = cmm_open,
1895 .release= cmm_close,
1896};
1897
1898static struct pcmcia_device_id cm4000_ids[] = {
1899 PCMCIA_DEVICE_MANF_CARD(0x0223, 0x0002),
1900 PCMCIA_DEVICE_PROD_ID12("CardMan", "4000", 0x2FB368CA, 0xA2BD8C39),
1901 PCMCIA_DEVICE_NULL,
1902};
1903MODULE_DEVICE_TABLE(pcmcia, cm4000_ids);
1904
1905static struct pcmcia_driver cm4000_driver = {
1906 .owner = THIS_MODULE,
1907 .drv = {
1908 .name = "cm4000_cs",
1909 },
15b99ac1 1910 .probe = cm4000_probe,
cc3b4866 1911 .remove = cm4000_detach,
98e4c28b
DB		 1912 .suspend = cm4000_suspend,
1913 .resume = cm4000_resume,
c1986ee9
HW		 1914 .id_table = cm4000_ids,
1915};
1916
1917static int __init cmm_init(void)
1918{
67bc6200
HW		 1919 int rc;
1920
c1986ee9 1921 printk(KERN_INFO "%s\n", version);
67bc6200
HW		 1922
1923 cmm_class = class_create(THIS_MODULE, "cardman_4000");
5eb5fc97
AM		 1924 if (IS_ERR(cmm_class))
1925 return PTR_ERR(cmm_class);
67bc6200 1926
c1986ee9
HW		 1927 major = register_chrdev(0, DEVICE_NAME, &cm4000_fops);
1928 if (major < 0) {
1929 printk(KERN_WARNING MODULE_NAME
1930 ": could not get major number\n");
54493c10 1931 class_destroy(cmm_class);
5eb5fc97 1932 return major;
c1986ee9
HW		 1933 }
1934
7fc5b1e3
HW		 1935 rc = pcmcia_register_driver(&cm4000_driver);
1936 if (rc < 0) {
1937 unregister_chrdev(major, DEVICE_NAME);
54493c10 1938 class_destroy(cmm_class);
7fc5b1e3
HW		 1939 return rc;
1940 }
1941
c1986ee9
HW		 1942 return 0;
1943}
1944
1945static void __exit cmm_exit(void)
1946{
c1986ee9
HW		 1947 printk(KERN_INFO MODULE_NAME ": unloading\n");
1948 pcmcia_unregister_driver(&cm4000_driver);
c1986ee9 1949 unregister_chrdev(major, DEVICE_NAME);
67bc6200 1950 class_destroy(cmm_class);
c1986ee9
HW		 1951};
1952
1953module_init(cmm_init);
1954module_exit(cmm_exit);
1955MODULE_LICENSE("Dual BSD/GPL");
Linux kernel - Deliverables
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