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Merge branch 'upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/shemminger...
[linux-2.6-block.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
26/* #define PCMCIA_DEBUG 6 */
27
28#include <linux/kernel.h>
29#include <linux/module.h>
30#include <linux/slab.h>
31#include <linux/init.h>
32#include <linux/fs.h>
33#include <linux/delay.h>
34#include <asm/uaccess.h>
35#include <asm/io.h>
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
48#ifdef PCMCIA_DEBUG
fd238232 49#define reader_to_dev(x) (&handle_to_dev(x->p_dev->handle))
c1986ee9
HW		 50static int pc_debug = PCMCIA_DEBUG;
51module_param(pc_debug, int, 0600);
52#define DEBUGP(n, rdr, x, args...) do { \
53 if (pc_debug >= (n)) \
54 dev_printk(KERN_DEBUG, reader_to_dev(rdr), "%s:" x, \
55 __FUNCTION__ , ## args); \
56 } while (0)
57#else
58#define DEBUGP(n, rdr, x, args...)
59#endif
67bc6200 60static char *version = "cm4000_cs.c v2.4.0gm6 - All bugs added by Harald Welte";
c1986ee9
HW		 61
62#define T_1SEC (HZ)
63#define T_10MSEC msecs_to_jiffies(10)
64#define T_20MSEC msecs_to_jiffies(20)
65#define T_40MSEC msecs_to_jiffies(40)
66#define T_50MSEC msecs_to_jiffies(50)
67#define T_100MSEC msecs_to_jiffies(100)
68#define T_500MSEC msecs_to_jiffies(500)
69
fba395ee 70static void cm4000_release(struct pcmcia_device *link);
c1986ee9
HW		 71
72static int major; /* major number we get from the kernel */
73
74/* note: the first state has to have number 0 always */
75
76#define M_FETCH_ATR 0
77#define M_TIMEOUT_WAIT 1
78#define M_READ_ATR_LEN 2
79#define M_READ_ATR 3
80#define M_ATR_PRESENT 4
81#define M_BAD_CARD 5
82#define M_CARDOFF 6
83
84#define LOCK_IO 0
85#define LOCK_MONITOR 1
86
87#define IS_AUTOPPS_ACT 6
88#define IS_PROCBYTE_PRESENT 7
89#define IS_INVREV 8
90#define IS_ANY_T0 9
91#define IS_ANY_T1 10
92#define IS_ATR_PRESENT 11
93#define IS_ATR_VALID 12
94#define IS_CMM_ABSENT 13
95#define IS_BAD_LENGTH 14
96#define IS_BAD_CSUM 15
97#define IS_BAD_CARD 16
98
99#define REG_FLAGS0(x) (x + 0)
100#define REG_FLAGS1(x) (x + 1)
101#define REG_NUM_BYTES(x) (x + 2)
102#define REG_BUF_ADDR(x) (x + 3)
103#define REG_BUF_DATA(x) (x + 4)
104#define REG_NUM_SEND(x) (x + 5)
105#define REG_BAUDRATE(x) (x + 6)
106#define REG_STOPBITS(x) (x + 7)
107
108struct cm4000_dev {
fd238232 109 struct pcmcia_device *p_dev;
c1986ee9
HW		 110 dev_node_t node; /* OS node (major,minor) */
111
112 unsigned char atr[MAX_ATR];
113 unsigned char rbuf[512];
114 unsigned char sbuf[512];
115
116 wait_queue_head_t devq; /* when removing cardman must not be
117 zeroed! */
118
119 wait_queue_head_t ioq; /* if IO is locked, wait on this Q */
120 wait_queue_head_t atrq; /* wait for ATR valid */
121 wait_queue_head_t readq; /* used by write to wake blk.read */
122
123 /* warning: do not move this fields.
124 * initialising to zero depends on it - see ZERO_DEV below. */
125 unsigned char atr_csum;
126 unsigned char atr_len_retry;
127 unsigned short atr_len;
128 unsigned short rlen; /* bytes avail. after write */
129 unsigned short rpos; /* latest read pos. write zeroes */
130 unsigned char procbyte; /* T=0 procedure byte */
131 unsigned char mstate; /* state of card monitor */
132 unsigned char cwarn; /* slow down warning */
133 unsigned char flags0; /* cardman IO-flags 0 */
134 unsigned char flags1; /* cardman IO-flags 1 */
135 unsigned int mdelay; /* variable monitor speeds, in jiffies */
136
137 unsigned int baudv; /* baud value for speed */
138 unsigned char ta1;
139 unsigned char proto; /* T=0, T=1, ... */
140 unsigned long flags; /* lock+flags (MONITOR,IO,ATR) * for concurrent
141 access */
142
143 unsigned char pts[4];
144
145 struct timer_list timer; /* used to keep monitor running */
146 int monitor_running;
147};
148
149#define ZERO_DEV(dev) \
150 memset(&dev->atr_csum,0, \
151 sizeof(struct cm4000_dev) - \
fba395ee 152 /*link*/ sizeof(struct pcmcia_device) - \
c1986ee9
HW		 153 /*node*/ sizeof(dev_node_t) - \
154 /*atr*/ MAX_ATR*sizeof(char) - \
155 /*rbuf*/ 512*sizeof(char) - \
156 /*sbuf*/ 512*sizeof(char) - \
157 /*queue*/ 4*sizeof(wait_queue_head_t))
158
fba395ee 159static struct pcmcia_device *dev_table[CM4000_MAX_DEV];
67bc6200 160static struct class *cmm_class;
c1986ee9
HW		 161
162/* This table doesn't use spaces after the comma between fields and thus
163 * violates CodingStyle. However, I don't really think wrapping it around will
164 * make it any clearer to read -HW */
165static unsigned char fi_di_table[10][14] = {
166/*FI 00 01 02 03 04 05 06 07 08 09 10 11 12 13 */
167/*DI */
168/* 0 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11},
169/* 1 */ {0x01,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x91,0x11,0x11,0x11,0x11},
170/* 2 */ {0x02,0x12,0x22,0x32,0x11,0x11,0x11,0x11,0x11,0x92,0xA2,0xB2,0x11,0x11},
171/* 3 */ {0x03,0x13,0x23,0x33,0x43,0x53,0x63,0x11,0x11,0x93,0xA3,0xB3,0xC3,0xD3},
172/* 4 */ {0x04,0x14,0x24,0x34,0x44,0x54,0x64,0x11,0x11,0x94,0xA4,0xB4,0xC4,0xD4},
173/* 5 */ {0x00,0x15,0x25,0x35,0x45,0x55,0x65,0x11,0x11,0x95,0xA5,0xB5,0xC5,0xD5},
174/* 6 */ {0x06,0x16,0x26,0x36,0x46,0x56,0x66,0x11,0x11,0x96,0xA6,0xB6,0xC6,0xD6},
175/* 7 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11},
176/* 8 */ {0x08,0x11,0x28,0x38,0x48,0x58,0x68,0x11,0x11,0x98,0xA8,0xB8,0xC8,0xD8},
177/* 9 */ {0x09,0x19,0x29,0x39,0x49,0x59,0x69,0x11,0x11,0x99,0xA9,0xB9,0xC9,0xD9}
178};
179
180#ifndef PCMCIA_DEBUG
181#define xoutb outb
182#define xinb inb
183#else
184static inline void xoutb(unsigned char val, unsigned short port)
185{
186 if (pc_debug >= 7)
187 printk(KERN_DEBUG "outb(val=%.2x,port=%.4x)\n", val, port);
188 outb(val, port);
189}
190static inline unsigned char xinb(unsigned short port)
191{
192 unsigned char val;
193
194 val = inb(port);
195 if (pc_debug >= 7)
196 printk(KERN_DEBUG "%.2x=inb(%.4x)\n", val, port);
197
198 return val;
199}
200#endif
201
202#define b_0000 15
203#define b_0001 14
204#define b_0010 13
205#define b_0011 12
206#define b_0100 11
207#define b_0101 10
208#define b_0110 9
209#define b_0111 8
210#define b_1000 7
211#define b_1001 6
212#define b_1010 5
213#define b_1011 4
214#define b_1100 3
215#define b_1101 2
216#define b_1110 1
217#define b_1111 0
218
219static unsigned char irtab[16] = {
220 b_0000, b_1000, b_0100, b_1100,
221 b_0010, b_1010, b_0110, b_1110,
222 b_0001, b_1001, b_0101, b_1101,
223 b_0011, b_1011, b_0111, b_1111
224};
225
226static void str_invert_revert(unsigned char *b, int len)
227{
228 int i;
229
230 for (i = 0; i < len; i++)
231 b[i] = (irtab[b[i] & 0x0f] << 4) | irtab[b[i] >> 4];
232}
233
234static unsigned char invert_revert(unsigned char ch)
235{
236 return (irtab[ch & 0x0f] << 4) | irtab[ch >> 4];
237}
238
239#define ATRLENCK(dev,pos) \
240 if (pos>=dev->atr_len || pos>=MAX_ATR) \
241 goto return_0;
242
243static unsigned int calc_baudv(unsigned char fidi)
244{
245 unsigned int wcrcf, wbrcf, fi_rfu, di_rfu;
246
247 fi_rfu = 372;
248 di_rfu = 1;
249
250 /* FI */
251 switch ((fidi >> 4) & 0x0F) {
252 case 0x00:
253 wcrcf = 372;
254 break;
255 case 0x01:
256 wcrcf = 372;
257 break;
258 case 0x02:
259 wcrcf = 558;
260 break;
261 case 0x03:
262 wcrcf = 744;
263 break;
264 case 0x04:
265 wcrcf = 1116;
266 break;
267 case 0x05:
268 wcrcf = 1488;
269 break;
270 case 0x06:
271 wcrcf = 1860;
272 break;
273 case 0x07:
274 wcrcf = fi_rfu;
275 break;
276 case 0x08:
277 wcrcf = fi_rfu;
278 break;
279 case 0x09:
280 wcrcf = 512;
281 break;
282 case 0x0A:
283 wcrcf = 768;
284 break;
285 case 0x0B:
286 wcrcf = 1024;
287 break;
288 case 0x0C:
289 wcrcf = 1536;
290 break;
291 case 0x0D:
292 wcrcf = 2048;
293 break;
294 default:
295 wcrcf = fi_rfu;
296 break;
297 }
298
299 /* DI */
300 switch (fidi & 0x0F) {
301 case 0x00:
302 wbrcf = di_rfu;
303 break;
304 case 0x01:
305 wbrcf = 1;
306 break;
307 case 0x02:
308 wbrcf = 2;
309 break;
310 case 0x03:
311 wbrcf = 4;
312 break;
313 case 0x04:
314 wbrcf = 8;
315 break;
316 case 0x05:
317 wbrcf = 16;
318 break;
319 case 0x06:
320 wbrcf = 32;
321 break;
322 case 0x07:
323 wbrcf = di_rfu;
324 break;
325 case 0x08:
326 wbrcf = 12;
327 break;
328 case 0x09:
329 wbrcf = 20;
330 break;
331 default:
332 wbrcf = di_rfu;
333 break;
334 }
335
336 return (wcrcf / wbrcf);
337}
338
339static unsigned short io_read_num_rec_bytes(ioaddr_t iobase, unsigned short *s)
340{
341 unsigned short tmp;
342
343 tmp = *s = 0;
344 do {
345 *s = tmp;
346 tmp = inb(REG_NUM_BYTES(iobase)) |
347 (inb(REG_FLAGS0(iobase)) & 4 ? 0x100 : 0);
348 } while (tmp != *s);
349
350 return *s;
351}
352
353static int parse_atr(struct cm4000_dev *dev)
354{
355 unsigned char any_t1, any_t0;
356 unsigned char ch, ifno;
357 int ix, done;
358
359 DEBUGP(3, dev, "-> parse_atr: dev->atr_len = %i\n", dev->atr_len);
360
361 if (dev->atr_len < 3) {
362 DEBUGP(5, dev, "parse_atr: atr_len < 3\n");
363 return 0;
364 }
365
366 if (dev->atr[0] == 0x3f)
367 set_bit(IS_INVREV, &dev->flags);
368 else
369 clear_bit(IS_INVREV, &dev->flags);
370 ix = 1;
371 ifno = 1;
372 ch = dev->atr[1];
373 dev->proto = 0; /* XXX PROTO */
374 any_t1 = any_t0 = done = 0;
375 dev->ta1 = 0x11; /* defaults to 9600 baud */
376 do {
377 if (ifno == 1 && (ch & 0x10)) {
378 /* read first interface byte and TA1 is present */
379 dev->ta1 = dev->atr[2];
380 DEBUGP(5, dev, "Card says FiDi is 0x%.2x\n", dev->ta1);
381 ifno++;
382 } else if ((ifno == 2) && (ch & 0x10)) { /* TA(2) */
383 dev->ta1 = 0x11;
384 ifno++;
385 }
386
387 DEBUGP(5, dev, "Yi=%.2x\n", ch & 0xf0);
388 ix += ((ch & 0x10) >> 4) /* no of int.face chars */
389 +((ch & 0x20) >> 5)
390 + ((ch & 0x40) >> 6)
391 + ((ch & 0x80) >> 7);
392 /* ATRLENCK(dev,ix); */
393 if (ch & 0x80) { /* TDi */
394 ch = dev->atr[ix];
395 if ((ch & 0x0f)) {
396 any_t1 = 1;
397 DEBUGP(5, dev, "card is capable of T=1\n");
398 } else {
399 any_t0 = 1;
400 DEBUGP(5, dev, "card is capable of T=0\n");
401 }
402 } else
403 done = 1;
404 } while (!done);
405
406 DEBUGP(5, dev, "ix=%d noHist=%d any_t1=%d\n",
407 ix, dev->atr[1] & 15, any_t1);
408 if (ix + 1 + (dev->atr[1] & 0x0f) + any_t1 != dev->atr_len) {
409 DEBUGP(5, dev, "length error\n");
410 return 0;
411 }
412 if (any_t0)
413 set_bit(IS_ANY_T0, &dev->flags);
414
415 if (any_t1) { /* compute csum */
416 dev->atr_csum = 0;
417#ifdef ATR_CSUM
418 for (i = 1; i < dev->atr_len; i++)
419 dev->atr_csum ^= dev->atr[i];
420 if (dev->atr_csum) {
421 set_bit(IS_BAD_CSUM, &dev->flags);
422 DEBUGP(5, dev, "bad checksum\n");
423 goto return_0;
424 }
425#endif
426 if (any_t0 == 0)
427 dev->proto = 1; /* XXX PROTO */
428 set_bit(IS_ANY_T1, &dev->flags);
429 }
430
431 return 1;
432}
433
434struct card_fixup {
435 char atr[12];
436 u_int8_t atr_len;
437 u_int8_t stopbits;
438};
439
440static struct card_fixup card_fixups[] = {
441 { /* ACOS */
442 .atr = { 0x3b, 0xb3, 0x11, 0x00, 0x00, 0x41, 0x01 },
443 .atr_len = 7,
444 .stopbits = 0x03,
445 },
446 { /* Motorola */
447 .atr = {0x3b, 0x76, 0x13, 0x00, 0x00, 0x80, 0x62, 0x07,
448 0x41, 0x81, 0x81 },
449 .atr_len = 11,
450 .stopbits = 0x04,
451 },
452};
453
454static void set_cardparameter(struct cm4000_dev *dev)
455{
456 int i;
fd238232 457 ioaddr_t iobase = dev->p_dev->io.BasePort1;
c1986ee9
HW		 458 u_int8_t stopbits = 0x02; /* ISO default */
459
460 DEBUGP(3, dev, "-> set_cardparameter\n");
461
462 dev->flags1 = dev->flags1 | (((dev->baudv - 1) & 0x0100) >> 8);
463 xoutb(dev->flags1, REG_FLAGS1(iobase));
464 DEBUGP(5, dev, "flags1 = 0x%02x\n", dev->flags1);
465
466 /* set baudrate */
467 xoutb((unsigned char)((dev->baudv - 1) & 0xFF), REG_BAUDRATE(iobase));
468
469 DEBUGP(5, dev, "baudv = %i -> write 0x%02x\n", dev->baudv,
470 ((dev->baudv - 1) & 0xFF));
471
472 /* set stopbits */
473 for (i = 0; i < ARRAY_SIZE(card_fixups); i++) {
474 if (!memcmp(dev->atr, card_fixups[i].atr,
475 card_fixups[i].atr_len))
476 stopbits = card_fixups[i].stopbits;
477 }
478 xoutb(stopbits, REG_STOPBITS(iobase));
479
480 DEBUGP(3, dev, "<- set_cardparameter\n");
481}
482
483static int set_protocol(struct cm4000_dev *dev, struct ptsreq *ptsreq)
484{
485
486 unsigned long tmp, i;
487 unsigned short num_bytes_read;
488 unsigned char pts_reply[4];
489 ssize_t rc;
fd238232 490 ioaddr_t iobase = dev->p_dev->io.BasePort1;
c1986ee9
HW		 491
492 rc = 0;
493
494 DEBUGP(3, dev, "-> set_protocol\n");
495 DEBUGP(5, dev, "ptsreq->Protocol = 0x%.8x, ptsreq->Flags=0x%.8x, "
496 "ptsreq->pts1=0x%.2x, ptsreq->pts2=0x%.2x, "
497 "ptsreq->pts3=0x%.2x\n", (unsigned int)ptsreq->protocol,
498 (unsigned int)ptsreq->flags, ptsreq->pts1, ptsreq->pts2,
499 ptsreq->pts3);
500
501 /* Fill PTS structure */
502 dev->pts[0] = 0xff;
503 dev->pts[1] = 0x00;
504 tmp = ptsreq->protocol;
505 while ((tmp = (tmp >> 1)) > 0)
506 dev->pts[1]++;
507 dev->proto = dev->pts[1]; /* Set new protocol */
508 dev->pts[1] = (0x01 << 4) | (dev->pts[1]);
509
510 /* Correct Fi/Di according to CM4000 Fi/Di table */
511 DEBUGP(5, dev, "Ta(1) from ATR is 0x%.2x\n", dev->ta1);
512 /* set Fi/Di according to ATR TA(1) */
513 dev->pts[2] = fi_di_table[dev->ta1 & 0x0F][(dev->ta1 >> 4) & 0x0F];
514
515 /* Calculate PCK character */
516 dev->pts[3] = dev->pts[0] ^ dev->pts[1] ^ dev->pts[2];
517
518 DEBUGP(5, dev, "pts0=%.2x, pts1=%.2x, pts2=%.2x, pts3=%.2x\n",
519 dev->pts[0], dev->pts[1], dev->pts[2], dev->pts[3]);
520
521 /* check card convention */
522 if (test_bit(IS_INVREV, &dev->flags))
523 str_invert_revert(dev->pts, 4);
524
525 /* reset SM */
526 xoutb(0x80, REG_FLAGS0(iobase));
527
528 /* Enable access to the message buffer */
529 DEBUGP(5, dev, "Enable access to the messages buffer\n");
530 dev->flags1 = 0x20 /* T_Active */
531 | (test_bit(IS_INVREV, &dev->flags) ? 0x02 : 0x00) /* inv parity */
532 | ((dev->baudv >> 8) & 0x01); /* MSB-baud */
533 xoutb(dev->flags1, REG_FLAGS1(iobase));
534
535 DEBUGP(5, dev, "Enable message buffer -> flags1 = 0x%.2x\n",
536 dev->flags1);
537
538 /* write challenge to the buffer */
539 DEBUGP(5, dev, "Write challenge to buffer: ");
540 for (i = 0; i < 4; i++) {
541 xoutb(i, REG_BUF_ADDR(iobase));
542 xoutb(dev->pts[i], REG_BUF_DATA(iobase)); /* buf data */
543#ifdef PCMCIA_DEBUG
544 if (pc_debug >= 5)
545 printk("0x%.2x ", dev->pts[i]);
546 }
547 if (pc_debug >= 5)
548 printk("\n");
549#else
550 }
551#endif
552
553 /* set number of bytes to write */
554 DEBUGP(5, dev, "Set number of bytes to write\n");
555 xoutb(0x04, REG_NUM_SEND(iobase));
556
557 /* Trigger CARDMAN CONTROLLER */
558 xoutb(0x50, REG_FLAGS0(iobase));
559
560 /* Monitor progress */
561 /* wait for xmit done */
562 DEBUGP(5, dev, "Waiting for NumRecBytes getting valid\n");
563
564 for (i = 0; i < 100; i++) {
565 if (inb(REG_FLAGS0(iobase)) & 0x08) {
566 DEBUGP(5, dev, "NumRecBytes is valid\n");
567 break;
568 }
569 mdelay(10);
570 }
571 if (i == 100) {
572 DEBUGP(5, dev, "Timeout waiting for NumRecBytes getting "
573 "valid\n");
574 rc = -EIO;
575 goto exit_setprotocol;
576 }
577
578 DEBUGP(5, dev, "Reading NumRecBytes\n");
579 for (i = 0; i < 100; i++) {
580 io_read_num_rec_bytes(iobase, &num_bytes_read);
581 if (num_bytes_read >= 4) {
582 DEBUGP(2, dev, "NumRecBytes = %i\n", num_bytes_read);
583 break;
584 }
585 mdelay(10);
586 }
587
588 /* check whether it is a short PTS reply? */
589 if (num_bytes_read == 3)
590 i = 0;
591
592 if (i == 100) {
593 DEBUGP(5, dev, "Timeout reading num_bytes_read\n");
594 rc = -EIO;
595 goto exit_setprotocol;
596 }
597
598 DEBUGP(5, dev, "Reset the CARDMAN CONTROLLER\n");
599 xoutb(0x80, REG_FLAGS0(iobase));
600
601 /* Read PPS reply */
602 DEBUGP(5, dev, "Read PPS reply\n");
603 for (i = 0; i < num_bytes_read; i++) {
604 xoutb(i, REG_BUF_ADDR(iobase));
605 pts_reply[i] = inb(REG_BUF_DATA(iobase));
606 }
607
608#ifdef PCMCIA_DEBUG
609 DEBUGP(2, dev, "PTSreply: ");
610 for (i = 0; i < num_bytes_read; i++) {
611 if (pc_debug >= 5)
612 printk("0x%.2x ", pts_reply[i]);
613 }
614 printk("\n");
615#endif /* PCMCIA_DEBUG */
616
617 DEBUGP(5, dev, "Clear Tactive in Flags1\n");
618 xoutb(0x20, REG_FLAGS1(iobase));
619
620 /* Compare ptsreq and ptsreply */
621 if ((dev->pts[0] == pts_reply[0]) &&
622 (dev->pts[1] == pts_reply[1]) &&
623 (dev->pts[2] == pts_reply[2]) && (dev->pts[3] == pts_reply[3])) {
624 /* setcardparameter according to PPS */
625 dev->baudv = calc_baudv(dev->pts[2]);
626 set_cardparameter(dev);
627 } else if ((dev->pts[0] == pts_reply[0]) &&
628 ((dev->pts[1] & 0xef) == pts_reply[1]) &&
629 ((pts_reply[0] ^ pts_reply[1]) == pts_reply[2])) {
630 /* short PTS reply, set card parameter to default values */
631 dev->baudv = calc_baudv(0x11);
632 set_cardparameter(dev);
633 } else
634 rc = -EIO;
635
636exit_setprotocol:
637 DEBUGP(3, dev, "<- set_protocol\n");
638 return rc;
639}
640
641static int io_detect_cm4000(ioaddr_t iobase, struct cm4000_dev *dev)
642{
643
644 /* note: statemachine is assumed to be reset */
645 if (inb(REG_FLAGS0(iobase)) & 8) {
646 clear_bit(IS_ATR_VALID, &dev->flags);
647 set_bit(IS_CMM_ABSENT, &dev->flags);
648 return 0; /* detect CMM = 1 -> failure */
649 }
650 /* xoutb(0x40, REG_FLAGS1(iobase)); detectCMM */
651 xoutb(dev->flags1 | 0x40, REG_FLAGS1(iobase));
652 if ((inb(REG_FLAGS0(iobase)) & 8) == 0) {
653 clear_bit(IS_ATR_VALID, &dev->flags);
654 set_bit(IS_CMM_ABSENT, &dev->flags);
655 return 0; /* detect CMM=0 -> failure */
656 }
657 /* clear detectCMM again by restoring original flags1 */
658 xoutb(dev->flags1, REG_FLAGS1(iobase));
659 return 1;
660}
661
662static void terminate_monitor(struct cm4000_dev *dev)
663{
664
665 /* tell the monitor to stop and wait until
666 * it terminates.
667 */
668 DEBUGP(3, dev, "-> terminate_monitor\n");
669 wait_event_interruptible(dev->devq,
670 test_and_set_bit(LOCK_MONITOR,
671 (void *)&dev->flags));
672
673 /* now, LOCK_MONITOR has been set.
674 * allow a last cycle in the monitor.
675 * the monitor will indicate that it has
676 * finished by clearing this bit.
677 */
678 DEBUGP(5, dev, "Now allow last cycle of monitor!\n");
679 while (test_bit(LOCK_MONITOR, (void *)&dev->flags))
680 msleep(25);
681
682 DEBUGP(5, dev, "Delete timer\n");
683 del_timer_sync(&dev->timer);
684#ifdef PCMCIA_DEBUG
685 dev->monitor_running = 0;
686#endif
687
688 DEBUGP(3, dev, "<- terminate_monitor\n");
689}
690
691/*
692 * monitor the card every 50msec. as a side-effect, retrieve the
693 * atr once a card is inserted. another side-effect of retrieving the
694 * atr is that the card will be powered on, so there is no need to
695 * power on the card explictely from the application: the driver
696 * is already doing that for you.
697 */
698
699static void monitor_card(unsigned long p)
700{
701 struct cm4000_dev *dev = (struct cm4000_dev *) p;
fd238232 702 ioaddr_t iobase = dev->p_dev->io.BasePort1;
c1986ee9
HW		 703 unsigned short s;
704 struct ptsreq ptsreq;
705 int i, atrc;
706
707 DEBUGP(7, dev, "-> monitor_card\n");
708
709 /* if someone has set the lock for us: we're done! */
710 if (test_and_set_bit(LOCK_MONITOR, &dev->flags)) {
711 DEBUGP(4, dev, "About to stop monitor\n");
712 /* no */
713 dev->rlen =
714 dev->rpos =
715 dev->atr_csum = dev->atr_len_retry = dev->cwarn = 0;
716 dev->mstate = M_FETCH_ATR;
717 clear_bit(LOCK_MONITOR, &dev->flags);
718 /* close et al. are sleeping on devq, so wake it */
719 wake_up_interruptible(&dev->devq);
720 DEBUGP(2, dev, "<- monitor_card (we are done now)\n");
721 return;
722 }
723
724 /* try to lock io: if it is already locked, just add another timer */
725 if (test_and_set_bit(LOCK_IO, (void *)&dev->flags)) {
726 DEBUGP(4, dev, "Couldn't get IO lock\n");
727 goto return_with_timer;
728 }
729
730 /* is a card/a reader inserted at all ? */
731 dev->flags0 = xinb(REG_FLAGS0(iobase));
732 DEBUGP(7, dev, "dev->flags0 = 0x%2x\n", dev->flags0);
733 DEBUGP(7, dev, "smartcard present: %s\n",
734 dev->flags0 & 1 ? "yes" : "no");
735 DEBUGP(7, dev, "cardman present: %s\n",
736 dev->flags0 == 0xff ? "no" : "yes");
737
738 if ((dev->flags0 & 1) == 0 /* no smartcard inserted */
739 || dev->flags0 == 0xff) { /* no cardman inserted */
740 /* no */
741 dev->rlen =
742 dev->rpos =
743 dev->atr_csum = dev->atr_len_retry = dev->cwarn = 0;
744 dev->mstate = M_FETCH_ATR;
745
746 dev->flags &= 0x000000ff; /* only keep IO and MONITOR locks */
747
748 if (dev->flags0 == 0xff) {
749 DEBUGP(4, dev, "set IS_CMM_ABSENT bit\n");
750 set_bit(IS_CMM_ABSENT, &dev->flags);
751 } else if (test_bit(IS_CMM_ABSENT, &dev->flags)) {
752 DEBUGP(4, dev, "clear IS_CMM_ABSENT bit "
753 "(card is removed)\n");
754 clear_bit(IS_CMM_ABSENT, &dev->flags);
755 }
756
757 goto release_io;
758 } else if ((dev->flags0 & 1) && test_bit(IS_CMM_ABSENT, &dev->flags)) {
759 /* cardman and card present but cardman was absent before
760 * (after suspend with inserted card) */
761 DEBUGP(4, dev, "clear IS_CMM_ABSENT bit (card is inserted)\n");
762 clear_bit(IS_CMM_ABSENT, &dev->flags);
763 }
764
765 if (test_bit(IS_ATR_VALID, &dev->flags) == 1) {
766 DEBUGP(7, dev, "believe ATR is already valid (do nothing)\n");
767 goto release_io;
768 }
769
770 switch (dev->mstate) {
771 unsigned char flags0;
772 case M_CARDOFF:
773 DEBUGP(4, dev, "M_CARDOFF\n");
774 flags0 = inb(REG_FLAGS0(iobase));
775 if (flags0 & 0x02) {
776 /* wait until Flags0 indicate power is off */
777 dev->mdelay = T_10MSEC;
778 } else {
779 /* Flags0 indicate power off and no card inserted now;
780 * Reset CARDMAN CONTROLLER */
781 xoutb(0x80, REG_FLAGS0(iobase));
782
783 /* prepare for fetching ATR again: after card off ATR
784 * is read again automatically */
785 dev->rlen =
786 dev->rpos =
787 dev->atr_csum =
788 dev->atr_len_retry = dev->cwarn = 0;
789 dev->mstate = M_FETCH_ATR;
790
791 /* minimal gap between CARDOFF and read ATR is 50msec */
792 dev->mdelay = T_50MSEC;
793 }
794 break;
795 case M_FETCH_ATR:
796 DEBUGP(4, dev, "M_FETCH_ATR\n");
797 xoutb(0x80, REG_FLAGS0(iobase));
798 DEBUGP(4, dev, "Reset BAUDV to 9600\n");
799 dev->baudv = 0x173; /* 9600 */
800 xoutb(0x02, REG_STOPBITS(iobase)); /* stopbits=2 */
801 xoutb(0x73, REG_BAUDRATE(iobase)); /* baud value */
802 xoutb(0x21, REG_FLAGS1(iobase)); /* T_Active=1, baud
803 value */
804 /* warm start vs. power on: */
805 xoutb(dev->flags0 & 2 ? 0x46 : 0x44, REG_FLAGS0(iobase));
806 dev->mdelay = T_40MSEC;
807 dev->mstate = M_TIMEOUT_WAIT;
808 break;
809 case M_TIMEOUT_WAIT:
810 DEBUGP(4, dev, "M_TIMEOUT_WAIT\n");
811 /* numRecBytes */
812 io_read_num_rec_bytes(iobase, &dev->atr_len);
813 dev->mdelay = T_10MSEC;
814 dev->mstate = M_READ_ATR_LEN;
815 break;
816 case M_READ_ATR_LEN:
817 DEBUGP(4, dev, "M_READ_ATR_LEN\n");
818 /* infinite loop possible, since there is no timeout */
819
820#define MAX_ATR_LEN_RETRY 100
821
822 if (dev->atr_len == io_read_num_rec_bytes(iobase, &s)) {
823 if (dev->atr_len_retry++ >= MAX_ATR_LEN_RETRY) { /* + XX msec */
824 dev->mdelay = T_10MSEC;
825 dev->mstate = M_READ_ATR;
826 }
827 } else {
828 dev->atr_len = s;
829 dev->atr_len_retry = 0; /* set new timeout */
830 }
831
832 DEBUGP(4, dev, "Current ATR_LEN = %i\n", dev->atr_len);
833 break;
834 case M_READ_ATR:
835 DEBUGP(4, dev, "M_READ_ATR\n");
836 xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */
837 for (i = 0; i < dev->atr_len; i++) {
838 xoutb(i, REG_BUF_ADDR(iobase));
839 dev->atr[i] = inb(REG_BUF_DATA(iobase));
840 }
841 /* Deactivate T_Active flags */
842 DEBUGP(4, dev, "Deactivate T_Active flags\n");
843 dev->flags1 = 0x01;
844 xoutb(dev->flags1, REG_FLAGS1(iobase));
845
846 /* atr is present (which doesnt mean it's valid) */
847 set_bit(IS_ATR_PRESENT, &dev->flags);
848 if (dev->atr[0] == 0x03)
849 str_invert_revert(dev->atr, dev->atr_len);
850 atrc = parse_atr(dev);
851 if (atrc == 0) { /* atr invalid */
852 dev->mdelay = 0;
853 dev->mstate = M_BAD_CARD;
854 } else {
855 dev->mdelay = T_50MSEC;
856 dev->mstate = M_ATR_PRESENT;
857 set_bit(IS_ATR_VALID, &dev->flags);
858 }
859
860 if (test_bit(IS_ATR_VALID, &dev->flags) == 1) {
861 DEBUGP(4, dev, "monitor_card: ATR valid\n");
862 /* if ta1 == 0x11, no PPS necessary (default values) */
863 /* do not do PPS with multi protocol cards */
864 if ((test_bit(IS_AUTOPPS_ACT, &dev->flags) == 0) &&
865 (dev->ta1 != 0x11) &&
866 !(test_bit(IS_ANY_T0, &dev->flags) &&
867 test_bit(IS_ANY_T1, &dev->flags))) {
868 DEBUGP(4, dev, "Perform AUTOPPS\n");
869 set_bit(IS_AUTOPPS_ACT, &dev->flags);
870 ptsreq.protocol = ptsreq.protocol =
871 (0x01 << dev->proto);
872 ptsreq.flags = 0x01;
873 ptsreq.pts1 = 0x00;
874 ptsreq.pts2 = 0x00;
875 ptsreq.pts3 = 0x00;
876 if (set_protocol(dev, &ptsreq) == 0) {
877 DEBUGP(4, dev, "AUTOPPS ret SUCC\n");
878 clear_bit(IS_AUTOPPS_ACT, &dev->flags);
879 wake_up_interruptible(&dev->atrq);
880 } else {
881 DEBUGP(4, dev, "AUTOPPS failed: "
882 "repower using defaults\n");
883 /* prepare for repowering */
884 clear_bit(IS_ATR_PRESENT, &dev->flags);
885 clear_bit(IS_ATR_VALID, &dev->flags);
886 dev->rlen =
887 dev->rpos =
888 dev->atr_csum =
889 dev->atr_len_retry = dev->cwarn = 0;
890 dev->mstate = M_FETCH_ATR;
891
892 dev->mdelay = T_50MSEC;
893 }
894 } else {
895 /* for cards which use slightly different
896 * params (extra guard time) */
897 set_cardparameter(dev);
898 if (test_bit(IS_AUTOPPS_ACT, &dev->flags) == 1)
899 DEBUGP(4, dev, "AUTOPPS already active "
900 "2nd try:use default values\n");
901 if (dev->ta1 == 0x11)
902 DEBUGP(4, dev, "No AUTOPPS necessary "
903 "TA(1)==0x11\n");
904 if (test_bit(IS_ANY_T0, &dev->flags)
905 && test_bit(IS_ANY_T1, &dev->flags))
906 DEBUGP(4, dev, "Do NOT perform AUTOPPS "
907 "with multiprotocol cards\n");
908 clear_bit(IS_AUTOPPS_ACT, &dev->flags);
909 wake_up_interruptible(&dev->atrq);
910 }
911 } else {
912 DEBUGP(4, dev, "ATR invalid\n");
913 wake_up_interruptible(&dev->atrq);
914 }
915 break;
916 case M_BAD_CARD:
917 DEBUGP(4, dev, "M_BAD_CARD\n");
918 /* slow down warning, but prompt immediately after insertion */
919 if (dev->cwarn == 0 || dev->cwarn == 10) {
920 set_bit(IS_BAD_CARD, &dev->flags);
921 printk(KERN_WARNING MODULE_NAME ": device %s: ",
922 dev->node.dev_name);
923 if (test_bit(IS_BAD_CSUM, &dev->flags)) {
924 DEBUGP(4, dev, "ATR checksum (0x%.2x, should "
925 "be zero) failed\n", dev->atr_csum);
926 }
927#ifdef PCMCIA_DEBUG
928 else if (test_bit(IS_BAD_LENGTH, &dev->flags)) {
929 DEBUGP(4, dev, "ATR length error\n");
930 } else {
931 DEBUGP(4, dev, "card damaged or wrong way "
932 "inserted\n");
933 }
934#endif
935 dev->cwarn = 0;
936 wake_up_interruptible(&dev->atrq); /* wake open */
937 }
938 dev->cwarn++;
939 dev->mdelay = T_100MSEC;
940 dev->mstate = M_FETCH_ATR;
941 break;
942 default:
943 DEBUGP(7, dev, "Unknown action\n");
944 break; /* nothing */
945 }
946
947release_io:
948 DEBUGP(7, dev, "release_io\n");
949 clear_bit(LOCK_IO, &dev->flags);
950 wake_up_interruptible(&dev->ioq); /* whoever needs IO */
951
952return_with_timer:
953 DEBUGP(7, dev, "<- monitor_card (returns with timer)\n");
954 dev->timer.expires = jiffies + dev->mdelay;
955 add_timer(&dev->timer);
956 clear_bit(LOCK_MONITOR, &dev->flags);
957}
958
959/* Interface to userland (file_operations) */
960
961static ssize_t cmm_read(struct file *filp, __user char *buf, size_t count,
962 loff_t *ppos)
963{
964 struct cm4000_dev *dev = filp->private_data;
fd238232 965 ioaddr_t iobase = dev->p_dev->io.BasePort1;
c1986ee9
HW		 966 ssize_t rc;
967 int i, j, k;
968
969 DEBUGP(2, dev, "-> cmm_read(%s,%d)\n", current->comm, current->pid);
970
971 if (count == 0) /* according to manpage */
972 return 0;
973
e2d40963 974 if (!pcmcia_dev_present(dev->p_dev) || /* device removed */
c1986ee9
HW		 975 test_bit(IS_CMM_ABSENT, &dev->flags))
976 return -ENODEV;
977
978 if (test_bit(IS_BAD_CSUM, &dev->flags))
979 return -EIO;
980
981 /* also see the note about this in cmm_write */
982 if (wait_event_interruptible
983 (dev->atrq,
984 ((filp->f_flags & O_NONBLOCK)
985 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) {
986 if (filp->f_flags & O_NONBLOCK)
987 return -EAGAIN;
988 return -ERESTARTSYS;
989 }
990
991 if (test_bit(IS_ATR_VALID, &dev->flags) == 0)
992 return -EIO;
993
994 /* this one implements blocking IO */
995 if (wait_event_interruptible
996 (dev->readq,
997 ((filp->f_flags & O_NONBLOCK) || (dev->rpos < dev->rlen)))) {
998 if (filp->f_flags & O_NONBLOCK)
999 return -EAGAIN;
1000 return -ERESTARTSYS;
1001 }
1002
1003 /* lock io */
1004 if (wait_event_interruptible
1005 (dev->ioq,
1006 ((filp->f_flags & O_NONBLOCK)
1007 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) {
1008 if (filp->f_flags & O_NONBLOCK)
1009 return -EAGAIN;
1010 return -ERESTARTSYS;
1011 }
1012
1013 rc = 0;
1014 dev->flags0 = inb(REG_FLAGS0(iobase));
1015 if ((dev->flags0 & 1) == 0 /* no smartcard inserted */
1016 || dev->flags0 == 0xff) { /* no cardman inserted */
1017 clear_bit(IS_ATR_VALID, &dev->flags);
1018 if (dev->flags0 & 1) {
1019 set_bit(IS_CMM_ABSENT, &dev->flags);
1020 rc = -ENODEV;
1021 }
1022 rc = -EIO;
1023 goto release_io;
1024 }
1025
1026 DEBUGP(4, dev, "begin read answer\n");
1027 j = min(count, (size_t)(dev->rlen - dev->rpos));
1028 k = dev->rpos;
1029 if (k + j > 255)
1030 j = 256 - k;
1031 DEBUGP(4, dev, "read1 j=%d\n", j);
1032 for (i = 0; i < j; i++) {
1033 xoutb(k++, REG_BUF_ADDR(iobase));
1034 dev->rbuf[i] = xinb(REG_BUF_DATA(iobase));
1035 }
1036 j = min(count, (size_t)(dev->rlen - dev->rpos));
1037 if (k + j > 255) {
1038 DEBUGP(4, dev, "read2 j=%d\n", j);
1039 dev->flags1 |= 0x10; /* MSB buf addr set */
1040 xoutb(dev->flags1, REG_FLAGS1(iobase));
1041 for (; i < j; i++) {
1042 xoutb(k++, REG_BUF_ADDR(iobase));
1043 dev->rbuf[i] = xinb(REG_BUF_DATA(iobase));
1044 }
1045 }
1046
1047 if (dev->proto == 0 && count > dev->rlen - dev->rpos) {
1048 DEBUGP(4, dev, "T=0 and count > buffer\n");
1049 dev->rbuf[i] = dev->rbuf[i - 1];
1050 dev->rbuf[i - 1] = dev->procbyte;
1051 j++;
1052 }
1053 count = j;
1054
1055 dev->rpos = dev->rlen + 1;
1056
1057 /* Clear T1Active */
1058 DEBUGP(4, dev, "Clear T1Active\n");
1059 dev->flags1 &= 0xdf;
1060 xoutb(dev->flags1, REG_FLAGS1(iobase));
1061
1062 xoutb(0, REG_FLAGS1(iobase)); /* clear detectCMM */
1063 /* last check before exit */
1064 if (!io_detect_cm4000(iobase, dev))
1065 count = -ENODEV;
1066
1067 if (test_bit(IS_INVREV, &dev->flags) && count > 0)
1068 str_invert_revert(dev->rbuf, count);
1069
1070 if (copy_to_user(buf, dev->rbuf, count))
1071 return -EFAULT;
1072
1073release_io:
1074 clear_bit(LOCK_IO, &dev->flags);
1075 wake_up_interruptible(&dev->ioq);
1076
1077 DEBUGP(2, dev, "<- cmm_read returns: rc = %Zi\n",
1078 (rc < 0 ? rc : count));
1079 return rc < 0 ? rc : count;
1080}
1081
1082static ssize_t cmm_write(struct file *filp, const char __user *buf,
1083 size_t count, loff_t *ppos)
1084{
1085 struct cm4000_dev *dev = (struct cm4000_dev *) filp->private_data;
fd238232 1086 ioaddr_t iobase = dev->p_dev->io.BasePort1;
c1986ee9
HW		 1087 unsigned short s;
1088 unsigned char tmp;
1089 unsigned char infolen;
1090 unsigned char sendT0;
1091 unsigned short nsend;
1092 unsigned short nr;
1093 ssize_t rc;
1094 int i;
1095
1096 DEBUGP(2, dev, "-> cmm_write(%s,%d)\n", current->comm, current->pid);
1097
1098 if (count == 0) /* according to manpage */
1099 return 0;
1100
1101 if (dev->proto == 0 && count < 4) {
1102 /* T0 must have at least 4 bytes */
1103 DEBUGP(4, dev, "T0 short write\n");
1104 return -EIO;
1105 }
1106
1107 nr = count & 0x1ff; /* max bytes to write */
1108
1109 sendT0 = dev->proto ? 0 : nr > 5 ? 0x08 : 0;
1110
e2d40963 1111 if (!pcmcia_dev_present(dev->p_dev) || /* device removed */
c1986ee9
HW		 1112 test_bit(IS_CMM_ABSENT, &dev->flags))
1113 return -ENODEV;
1114
1115 if (test_bit(IS_BAD_CSUM, &dev->flags)) {
1116 DEBUGP(4, dev, "bad csum\n");
1117 return -EIO;
1118 }
1119
1120 /*
1121 * wait for atr to become valid.
1122 * note: it is important to lock this code. if we dont, the monitor
1123 * could be run between test_bit and the the call the sleep on the
1124 * atr-queue. if *then* the monitor detects atr valid, it will wake up
1125 * any process on the atr-queue, *but* since we have been interrupted,
1126 * we do not yet sleep on this queue. this would result in a missed
1127 * wake_up and the calling process would sleep forever (until
1128 * interrupted). also, do *not* restore_flags before sleep_on, because
1129 * this could result in the same situation!
1130 */
1131 if (wait_event_interruptible
1132 (dev->atrq,
1133 ((filp->f_flags & O_NONBLOCK)
1134 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) {
1135 if (filp->f_flags & O_NONBLOCK)
1136 return -EAGAIN;
1137 return -ERESTARTSYS;
1138 }
1139
1140 if (test_bit(IS_ATR_VALID, &dev->flags) == 0) { /* invalid atr */
1141 DEBUGP(4, dev, "invalid ATR\n");
1142 return -EIO;
1143 }
1144
1145 /* lock io */
1146 if (wait_event_interruptible
1147 (dev->ioq,
1148 ((filp->f_flags & O_NONBLOCK)
1149 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) {
1150 if (filp->f_flags & O_NONBLOCK)
1151 return -EAGAIN;
1152 return -ERESTARTSYS;
1153 }
1154
1155 if (copy_from_user(dev->sbuf, buf, ((count > 512) ? 512 : count)))
1156 return -EFAULT;
1157
1158 rc = 0;
1159 dev->flags0 = inb(REG_FLAGS0(iobase));
1160 if ((dev->flags0 & 1) == 0 /* no smartcard inserted */
1161 || dev->flags0 == 0xff) { /* no cardman inserted */
1162 clear_bit(IS_ATR_VALID, &dev->flags);
1163 if (dev->flags0 & 1) {
1164 set_bit(IS_CMM_ABSENT, &dev->flags);
1165 rc = -ENODEV;
1166 } else {
1167 DEBUGP(4, dev, "IO error\n");
1168 rc = -EIO;
1169 }
1170 goto release_io;
1171 }
1172
1173 xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */
1174
1175 if (!io_detect_cm4000(iobase, dev)) {
1176 rc = -ENODEV;
1177 goto release_io;
1178 }
1179
1180 /* reflect T=0 send/read mode in flags1 */
1181 dev->flags1 |= (sendT0);
1182
1183 set_cardparameter(dev);
1184
1185 /* dummy read, reset flag procedure received */
1186 tmp = inb(REG_FLAGS1(iobase));
1187
1188 dev->flags1 = 0x20 /* T_Active */
1189 | (sendT0)
1190 | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0)/* inverse parity */
1191 | (((dev->baudv - 1) & 0x0100) >> 8); /* MSB-Baud */
1192 DEBUGP(1, dev, "set dev->flags1 = 0x%.2x\n", dev->flags1);
1193 xoutb(dev->flags1, REG_FLAGS1(iobase));
1194
1195 /* xmit data */
1196 DEBUGP(4, dev, "Xmit data\n");
1197 for (i = 0; i < nr; i++) {
1198 if (i >= 256) {
1199 dev->flags1 = 0x20 /* T_Active */
1200 | (sendT0) /* SendT0 */
1201 /* inverse parity: */
1202 | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0)
1203 | (((dev->baudv - 1) & 0x0100) >> 8) /* MSB-Baud */
1204 | 0x10; /* set address high */
1205 DEBUGP(4, dev, "dev->flags = 0x%.2x - set address "
1206 "high\n", dev->flags1);
1207 xoutb(dev->flags1, REG_FLAGS1(iobase));
1208 }
1209 if (test_bit(IS_INVREV, &dev->flags)) {
1210 DEBUGP(4, dev, "Apply inverse convention for 0x%.2x "
1211 "-> 0x%.2x\n", (unsigned char)dev->sbuf[i],
1212 invert_revert(dev->sbuf[i]));
1213 xoutb(i, REG_BUF_ADDR(iobase));
1214 xoutb(invert_revert(dev->sbuf[i]),
1215 REG_BUF_DATA(iobase));
1216 } else {
1217 xoutb(i, REG_BUF_ADDR(iobase));
1218 xoutb(dev->sbuf[i], REG_BUF_DATA(iobase));
1219 }
1220 }
1221 DEBUGP(4, dev, "Xmit done\n");
1222
1223 if (dev->proto == 0) {
1224 /* T=0 proto: 0 byte reply */
1225 if (nr == 4) {
1226 DEBUGP(4, dev, "T=0 assumes 0 byte reply\n");
1227 xoutb(i, REG_BUF_ADDR(iobase));
1228 if (test_bit(IS_INVREV, &dev->flags))
1229 xoutb(0xff, REG_BUF_DATA(iobase));
1230 else
1231 xoutb(0x00, REG_BUF_DATA(iobase));
1232 }
1233
1234 /* numSendBytes */
1235 if (sendT0)
1236 nsend = nr;
1237 else {
1238 if (nr == 4)
1239 nsend = 5;
1240 else {
1241 nsend = 5 + (unsigned char)dev->sbuf[4];
1242 if (dev->sbuf[4] == 0)
1243 nsend += 0x100;
1244 }
1245 }
1246 } else
1247 nsend = nr;
1248
1249 /* T0: output procedure byte */
1250 if (test_bit(IS_INVREV, &dev->flags)) {
1251 DEBUGP(4, dev, "T=0 set Procedure byte (inverse-reverse) "
1252 "0x%.2x\n", invert_revert(dev->sbuf[1]));
1253 xoutb(invert_revert(dev->sbuf[1]), REG_NUM_BYTES(iobase));
1254 } else {
1255 DEBUGP(4, dev, "T=0 set Procedure byte 0x%.2x\n", dev->sbuf[1]);
1256 xoutb(dev->sbuf[1], REG_NUM_BYTES(iobase));
1257 }
1258
1259 DEBUGP(1, dev, "set NumSendBytes = 0x%.2x\n",
1260 (unsigned char)(nsend & 0xff));
1261 xoutb((unsigned char)(nsend & 0xff), REG_NUM_SEND(iobase));
1262
1263 DEBUGP(1, dev, "Trigger CARDMAN CONTROLLER (0x%.2x)\n",
1264 0x40 /* SM_Active */
1265 | (dev->flags0 & 2 ? 0 : 4) /* power on if needed */
1266 |(dev->proto ? 0x10 : 0x08) /* T=1/T=0 */
1267 |(nsend & 0x100) >> 8 /* MSB numSendBytes */ );
1268 xoutb(0x40 /* SM_Active */
1269 | (dev->flags0 & 2 ? 0 : 4) /* power on if needed */
1270 |(dev->proto ? 0x10 : 0x08) /* T=1/T=0 */
1271 |(nsend & 0x100) >> 8, /* MSB numSendBytes */
1272 REG_FLAGS0(iobase));
1273
1274 /* wait for xmit done */
1275 if (dev->proto == 1) {
1276 DEBUGP(4, dev, "Wait for xmit done\n");
1277 for (i = 0; i < 1000; i++) {
1278 if (inb(REG_FLAGS0(iobase)) & 0x08)
1279 break;
1280 msleep_interruptible(10);
1281 }
1282 if (i == 1000) {
1283 DEBUGP(4, dev, "timeout waiting for xmit done\n");
1284 rc = -EIO;
1285 goto release_io;
1286 }
1287 }
1288
1289 /* T=1: wait for infoLen */
1290
1291 infolen = 0;
1292 if (dev->proto) {
1293 /* wait until infoLen is valid */
1294 for (i = 0; i < 6000; i++) { /* max waiting time of 1 min */
1295 io_read_num_rec_bytes(iobase, &s);
1296 if (s >= 3) {
1297 infolen = inb(REG_FLAGS1(iobase));
1298 DEBUGP(4, dev, "infolen=%d\n", infolen);
1299 break;
1300 }
1301 msleep_interruptible(10);
1302 }
1303 if (i == 6000) {
1304 DEBUGP(4, dev, "timeout waiting for infoLen\n");
1305 rc = -EIO;
1306 goto release_io;
1307 }
1308 } else
1309 clear_bit(IS_PROCBYTE_PRESENT, &dev->flags);
1310
1311 /* numRecBytes | bit9 of numRecytes */
1312 io_read_num_rec_bytes(iobase, &dev->rlen);
1313 for (i = 0; i < 600; i++) { /* max waiting time of 2 sec */
1314 if (dev->proto) {
1315 if (dev->rlen >= infolen + 4)
1316 break;
1317 }
1318 msleep_interruptible(10);
1319 /* numRecBytes | bit9 of numRecytes */
1320 io_read_num_rec_bytes(iobase, &s);
1321 if (s > dev->rlen) {
1322 DEBUGP(1, dev, "NumRecBytes inc (reset timeout)\n");
1323 i = 0; /* reset timeout */
1324 dev->rlen = s;
1325 }
1326 /* T=0: we are done when numRecBytes doesn't
1327 * increment any more and NoProcedureByte
1328 * is set and numRecBytes == bytes sent + 6
1329 * (header bytes + data + 1 for sw2)
1330 * except when the card replies an error
1331 * which means, no data will be sent back.
1332 */
1333 else if (dev->proto == 0) {
1334 if ((inb(REG_BUF_ADDR(iobase)) & 0x80)) {
1335 /* no procedure byte received since last read */
1336 DEBUGP(1, dev, "NoProcedure byte set\n");
1337 /* i=0; */
1338 } else {
1339 /* procedure byte received since last read */
1340 DEBUGP(1, dev, "NoProcedure byte unset "
1341 "(reset timeout)\n");
1342 dev->procbyte = inb(REG_FLAGS1(iobase));
1343 DEBUGP(1, dev, "Read procedure byte 0x%.2x\n",
1344 dev->procbyte);
1345 i = 0; /* resettimeout */
1346 }
1347 if (inb(REG_FLAGS0(iobase)) & 0x08) {
1348 DEBUGP(1, dev, "T0Done flag (read reply)\n");
1349 break;
1350 }
1351 }
1352 if (dev->proto)
1353 infolen = inb(REG_FLAGS1(iobase));
1354 }
1355 if (i == 600) {
1356 DEBUGP(1, dev, "timeout waiting for numRecBytes\n");
1357 rc = -EIO;
1358 goto release_io;
1359 } else {
1360 if (dev->proto == 0) {
1361 DEBUGP(1, dev, "Wait for T0Done bit to be set\n");
1362 for (i = 0; i < 1000; i++) {
1363 if (inb(REG_FLAGS0(iobase)) & 0x08)
1364 break;
1365 msleep_interruptible(10);
1366 }
1367 if (i == 1000) {
1368 DEBUGP(1, dev, "timeout waiting for T0Done\n");
1369 rc = -EIO;
1370 goto release_io;
1371 }
1372
1373 dev->procbyte = inb(REG_FLAGS1(iobase));
1374 DEBUGP(4, dev, "Read procedure byte 0x%.2x\n",
1375 dev->procbyte);
1376
1377 io_read_num_rec_bytes(iobase, &dev->rlen);
1378 DEBUGP(4, dev, "Read NumRecBytes = %i\n", dev->rlen);
1379
1380 }
1381 }
1382 /* T=1: read offset=zero, T=0: read offset=after challenge */
1383 dev->rpos = dev->proto ? 0 : nr == 4 ? 5 : nr > dev->rlen ? 5 : nr;
1384 DEBUGP(4, dev, "dev->rlen = %i, dev->rpos = %i, nr = %i\n",
1385 dev->rlen, dev->rpos, nr);
1386
1387release_io:
1388 DEBUGP(4, dev, "Reset SM\n");
1389 xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */
1390
1391 if (rc < 0) {
1392 DEBUGP(4, dev, "Write failed but clear T_Active\n");
1393 dev->flags1 &= 0xdf;
1394 xoutb(dev->flags1, REG_FLAGS1(iobase));
1395 }
1396
1397 clear_bit(LOCK_IO, &dev->flags);
1398 wake_up_interruptible(&dev->ioq);
1399 wake_up_interruptible(&dev->readq); /* tell read we have data */
1400
1401 /* ITSEC E2: clear write buffer */
1402 memset((char *)dev->sbuf, 0, 512);
1403
1404 /* return error or actually written bytes */
1405 DEBUGP(2, dev, "<- cmm_write\n");
1406 return rc < 0 ? rc : nr;
1407}
1408
1409static void start_monitor(struct cm4000_dev *dev)
1410{
1411 DEBUGP(3, dev, "-> start_monitor\n");
1412 if (!dev->monitor_running) {
1413 DEBUGP(5, dev, "create, init and add timer\n");
1414 init_timer(&dev->timer);
1415 dev->monitor_running = 1;
1416 dev->timer.expires = jiffies;
1417 dev->timer.data = (unsigned long) dev;
1418 dev->timer.function = monitor_card;
1419 add_timer(&dev->timer);
1420 } else
1421 DEBUGP(5, dev, "monitor already running\n");
1422 DEBUGP(3, dev, "<- start_monitor\n");
1423}
1424
1425static void stop_monitor(struct cm4000_dev *dev)
1426{
1427 DEBUGP(3, dev, "-> stop_monitor\n");
1428 if (dev->monitor_running) {
1429 DEBUGP(5, dev, "stopping monitor\n");
1430 terminate_monitor(dev);
1431 /* reset monitor SM */
1432 clear_bit(IS_ATR_VALID, &dev->flags);
1433 clear_bit(IS_ATR_PRESENT, &dev->flags);
1434 } else
1435 DEBUGP(5, dev, "monitor already stopped\n");
1436 DEBUGP(3, dev, "<- stop_monitor\n");
1437}
1438
1439static int cmm_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
1440 unsigned long arg)
1441{
1442 struct cm4000_dev *dev = filp->private_data;
fd238232 1443 ioaddr_t iobase = dev->p_dev->io.BasePort1;
fba395ee 1444 struct pcmcia_device *link;
c1986ee9
HW		 1445 int size;
1446 int rc;
c4aa02eb 1447 void __user *argp = (void __user *)arg;
c1986ee9
HW		 1448#ifdef PCMCIA_DEBUG
1449 char *ioctl_names[CM_IOC_MAXNR + 1] = {
1450 [_IOC_NR(CM_IOCGSTATUS)] "CM_IOCGSTATUS",
1451 [_IOC_NR(CM_IOCGATR)] "CM_IOCGATR",
1452 [_IOC_NR(CM_IOCARDOFF)] "CM_IOCARDOFF",
1453 [_IOC_NR(CM_IOCSPTS)] "CM_IOCSPTS",
1454 [_IOC_NR(CM_IOSDBGLVL)] "CM4000_DBGLVL",
1455 };
1456#endif
1457 DEBUGP(3, dev, "cmm_ioctl(device=%d.%d) %s\n", imajor(inode),
1458 iminor(inode), ioctl_names[_IOC_NR(cmd)]);
1459
1460 link = dev_table[iminor(inode)];
9940ec36 1461 if (!pcmcia_dev_present(link)) {
c1986ee9
HW		 1462 DEBUGP(4, dev, "DEV_OK false\n");
1463 return -ENODEV;
1464 }
1465
1466 if (test_bit(IS_CMM_ABSENT, &dev->flags)) {
1467 DEBUGP(4, dev, "CMM_ABSENT flag set\n");
1468 return -ENODEV;
1469 }
1470
1471 if (_IOC_TYPE(cmd) != CM_IOC_MAGIC) {
1472 DEBUGP(4, dev, "ioctype mismatch\n");
1473 return -EINVAL;
1474 }
1475 if (_IOC_NR(cmd) > CM_IOC_MAXNR) {
1476 DEBUGP(4, dev, "iocnr mismatch\n");
1477 return -EINVAL;
1478 }
1479 size = _IOC_SIZE(cmd);
1480 rc = 0;
1481 DEBUGP(4, dev, "iocdir=%.4x iocr=%.4x iocw=%.4x iocsize=%d cmd=%.4x\n",
1482 _IOC_DIR(cmd), _IOC_READ, _IOC_WRITE, size, cmd);
1483
1484 if (_IOC_DIR(cmd) & _IOC_READ) {
c4aa02eb 1485 if (!access_ok(VERIFY_WRITE, argp, size))
c1986ee9
HW		 1486 return -EFAULT;
1487 }
1488 if (_IOC_DIR(cmd) & _IOC_WRITE) {
c4aa02eb 1489 if (!access_ok(VERIFY_READ, argp, size))
c1986ee9
HW		 1490 return -EFAULT;
1491 }
1492
1493 switch (cmd) {
1494 case CM_IOCGSTATUS:
1495 DEBUGP(4, dev, " ... in CM_IOCGSTATUS\n");
1496 {
1497 int status;
1498
1499 /* clear other bits, but leave inserted & powered as
1500 * they are */
1501 status = dev->flags0 & 3;
1502 if (test_bit(IS_ATR_PRESENT, &dev->flags))
1503 status |= CM_ATR_PRESENT;
1504 if (test_bit(IS_ATR_VALID, &dev->flags))
1505 status |= CM_ATR_VALID;
1506 if (test_bit(IS_CMM_ABSENT, &dev->flags))
1507 status |= CM_NO_READER;
1508 if (test_bit(IS_BAD_CARD, &dev->flags))
1509 status |= CM_BAD_CARD;
c4aa02eb 1510 if (copy_to_user(argp, &status, sizeof(int)))
c1986ee9
HW		 1511 return -EFAULT;
1512 }
1513 return 0;
1514 case CM_IOCGATR:
1515 DEBUGP(4, dev, "... in CM_IOCGATR\n");
1516 {
c4aa02eb 1517 struct atreq __user *atreq = argp;
c1986ee9
HW		 1518 int tmp;
1519 /* allow nonblocking io and being interrupted */
1520 if (wait_event_interruptible
1521 (dev->atrq,
1522 ((filp->f_flags & O_NONBLOCK)
1523 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags)
1524 != 0)))) {
1525 if (filp->f_flags & O_NONBLOCK)
1526 return -EAGAIN;
1527 return -ERESTARTSYS;
1528 }
1529
1530 if (test_bit(IS_ATR_VALID, &dev->flags) == 0) {
1531 tmp = -1;
1532 if (copy_to_user(&(atreq->atr_len), &tmp,
1533 sizeof(int)))
1534 return -EFAULT;
1535 } else {
1536 if (copy_to_user(atreq->atr, dev->atr,
1537 dev->atr_len))
1538 return -EFAULT;
1539
1540 tmp = dev->atr_len;
1541 if (copy_to_user(&(atreq->atr_len), &tmp, sizeof(int)))
1542 return -EFAULT;
1543 }
1544 return 0;
1545 }
1546 case CM_IOCARDOFF:
1547
1548#ifdef PCMCIA_DEBUG
1549 DEBUGP(4, dev, "... in CM_IOCARDOFF\n");
1550 if (dev->flags0 & 0x01) {
1551 DEBUGP(4, dev, " Card inserted\n");
1552 } else {
1553 DEBUGP(2, dev, " No card inserted\n");
1554 }
1555 if (dev->flags0 & 0x02) {
1556 DEBUGP(4, dev, " Card powered\n");
1557 } else {
1558 DEBUGP(2, dev, " Card not powered\n");
1559 }
1560#endif
1561
1562 /* is a card inserted and powered? */
1563 if ((dev->flags0 & 0x01) && (dev->flags0 & 0x02)) {
1564
1565 /* get IO lock */
1566 if (wait_event_interruptible
1567 (dev->ioq,
1568 ((filp->f_flags & O_NONBLOCK)
1569 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags)
1570 == 0)))) {
1571 if (filp->f_flags & O_NONBLOCK)
1572 return -EAGAIN;
1573 return -ERESTARTSYS;
1574 }
1575 /* Set Flags0 = 0x42 */
1576 DEBUGP(4, dev, "Set Flags0=0x42 \n");
1577 xoutb(0x42, REG_FLAGS0(iobase));
1578 clear_bit(IS_ATR_PRESENT, &dev->flags);
1579 clear_bit(IS_ATR_VALID, &dev->flags);
1580 dev->mstate = M_CARDOFF;
1581 clear_bit(LOCK_IO, &dev->flags);
1582 if (wait_event_interruptible
1583 (dev->atrq,
1584 ((filp->f_flags & O_NONBLOCK)
1585 || (test_bit(IS_ATR_VALID, (void *)&dev->flags) !=
1586 0)))) {
1587 if (filp->f_flags & O_NONBLOCK)
1588 return -EAGAIN;
1589 return -ERESTARTSYS;
1590 }
1591 }
1592 /* release lock */
1593 clear_bit(LOCK_IO, &dev->flags);
1594 wake_up_interruptible(&dev->ioq);
1595
1596 return 0;
1597 case CM_IOCSPTS:
1598 {
1599 struct ptsreq krnptsreq;
1600
c4aa02eb 1601 if (copy_from_user(&krnptsreq, argp,
c1986ee9
HW		 1602 sizeof(struct ptsreq)))
1603 return -EFAULT;
1604
1605 rc = 0;
1606 DEBUGP(4, dev, "... in CM_IOCSPTS\n");
1607 /* wait for ATR to get valid */
1608 if (wait_event_interruptible
1609 (dev->atrq,
1610 ((filp->f_flags & O_NONBLOCK)
1611 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags)
1612 != 0)))) {
1613 if (filp->f_flags & O_NONBLOCK)
1614 return -EAGAIN;
1615 return -ERESTARTSYS;
1616 }
1617 /* get IO lock */
1618 if (wait_event_interruptible
1619 (dev->ioq,
1620 ((filp->f_flags & O_NONBLOCK)
1621 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags)
1622 == 0)))) {
1623 if (filp->f_flags & O_NONBLOCK)
1624 return -EAGAIN;
1625 return -ERESTARTSYS;
1626 }
1627
1628 if ((rc = set_protocol(dev, &krnptsreq)) != 0) {
1629 /* auto power_on again */
1630 dev->mstate = M_FETCH_ATR;
1631 clear_bit(IS_ATR_VALID, &dev->flags);
1632 }
1633 /* release lock */
1634 clear_bit(LOCK_IO, &dev->flags);
1635 wake_up_interruptible(&dev->ioq);
1636
1637 }
1638 return rc;
1639#ifdef PCMCIA_DEBUG
1640 case CM_IOSDBGLVL: /* set debug log level */
1641 {
1642 int old_pc_debug = 0;
1643
1644 old_pc_debug = pc_debug;
c4aa02eb 1645 if (copy_from_user(&pc_debug, argp, sizeof(int)))
c1986ee9
HW		 1646 return -EFAULT;
1647
1648 if (old_pc_debug != pc_debug)
1649 DEBUGP(0, dev, "Changed debug log level "
1650 "to %i\n", pc_debug);
1651 }
1652 return rc;
1653#endif
1654 default:
1655 DEBUGP(4, dev, "... in default (unknown IOCTL code)\n");
1656 return -EINVAL;
1657 }
1658}
1659
1660static int cmm_open(struct inode *inode, struct file *filp)
1661{
1662 struct cm4000_dev *dev;
fba395ee 1663 struct pcmcia_device *link;
c1986ee9
HW		 1664 int rc, minor = iminor(inode);
1665
1666 if (minor >= CM4000_MAX_DEV)
1667 return -ENODEV;
1668
1669 link = dev_table[minor];
9940ec36 1670 if (link == NULL || !pcmcia_dev_present(link))
c1986ee9
HW		 1671 return -ENODEV;
1672
1673 if (link->open)
1674 return -EBUSY;
1675
1676 dev = link->priv;
1677 filp->private_data = dev;
1678
1679 DEBUGP(2, dev, "-> cmm_open(device=%d.%d process=%s,%d)\n",
1680 imajor(inode), minor, current->comm, current->pid);
1681
1682 /* init device variables, they may be "polluted" after close
1683 * or, the device may never have been closed (i.e. open failed)
1684 */
1685
1686 ZERO_DEV(dev);
1687
1688 /* opening will always block since the
1689 * monitor will be started by open, which
1690 * means we have to wait for ATR becoming
1691 * vaild = block until valid (or card
1692 * inserted)
1693 */
1694 if (filp->f_flags & O_NONBLOCK)
1695 return -EAGAIN;
1696
1697 dev->mdelay = T_50MSEC;
1698
1699 /* start monitoring the cardstatus */
1700 start_monitor(dev);
1701
1702 link->open = 1; /* only one open per device */
1703 rc = 0;
1704
1705 DEBUGP(2, dev, "<- cmm_open\n");
1706 return nonseekable_open(inode, filp);
1707}
1708
1709static int cmm_close(struct inode *inode, struct file *filp)
1710{
1711 struct cm4000_dev *dev;
fba395ee 1712 struct pcmcia_device *link;
c1986ee9
HW		 1713 int minor = iminor(inode);
1714
1715 if (minor >= CM4000_MAX_DEV)
1716 return -ENODEV;
1717
1718 link = dev_table[minor];
1719 if (link == NULL)
1720 return -ENODEV;
1721
1722 dev = link->priv;
1723
1724 DEBUGP(2, dev, "-> cmm_close(maj/min=%d.%d)\n",
1725 imajor(inode), minor);
1726
1727 stop_monitor(dev);
1728
1729 ZERO_DEV(dev);
1730
1731 link->open = 0; /* only one open per device */
1732 wake_up(&dev->devq); /* socket removed? */
1733
1734 DEBUGP(2, dev, "cmm_close\n");
1735 return 0;
1736}
1737
fba395ee 1738static void cmm_cm4000_release(struct pcmcia_device * link)
c1986ee9
HW		 1739{
1740 struct cm4000_dev *dev = link->priv;
1741
1742 /* dont terminate the monitor, rather rely on
1743 * close doing that for us.
1744 */
1745 DEBUGP(3, dev, "-> cmm_cm4000_release\n");
1746 while (link->open) {
1747 printk(KERN_INFO MODULE_NAME ": delaying release until "
1748 "process has terminated\n");
1749 /* note: don't interrupt us:
1750 * close the applications which own
1751 * the devices _first_ !
1752 */
1753 wait_event(dev->devq, (link->open == 0));
1754 }
1755 /* dev->devq=NULL; this cannot be zeroed earlier */
1756 DEBUGP(3, dev, "<- cmm_cm4000_release\n");
1757 return;
1758}
1759
1760/*==== Interface to PCMCIA Layer =======================================*/
1761
15b99ac1 1762static int cm4000_config(struct pcmcia_device * link, int devno)
c1986ee9 1763{
c1986ee9
HW		 1764 struct cm4000_dev *dev;
1765 tuple_t tuple;
1766 cisparse_t parse;
c1986ee9
HW		 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
fba395ee 1778 if ((fail_rc = pcmcia_get_first_tuple(link, &tuple)) != CS_SUCCESS) {
c1986ee9
HW		 1779 fail_fn = GetFirstTuple;
1780 goto cs_failed;
1781 }
fba395ee 1782 if ((fail_rc = pcmcia_get_tuple_data(link, &tuple)) != CS_SUCCESS) {
c1986ee9
HW		 1783 fail_fn = GetTupleData;
1784 goto cs_failed;
1785 }
1786 if ((fail_rc =
fba395ee 1787 pcmcia_parse_tuple(link, &tuple, &parse)) != CS_SUCCESS) {
c1986ee9
HW		 1788 fail_fn = ParseTuple;
1789 goto cs_failed;
1790 }
c1986ee9 1791
c1986ee9
HW		 1792 link->conf.ConfigBase = parse.config.base;
1793 link->conf.Present = parse.config.rmask[0];
c1986ee9
HW		 1794
1795 link->io.BasePort2 = 0;
1796 link->io.NumPorts2 = 0;
1797 link->io.Attributes2 = 0;
1798 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
fba395ee
DB		 1799 for (rc = pcmcia_get_first_tuple(link, &tuple);
1800 rc == CS_SUCCESS; rc = pcmcia_get_next_tuple(link, &tuple)) {
c1986ee9 1801
fba395ee 1802 rc = pcmcia_get_tuple_data(link, &tuple);
c1986ee9
HW		 1803 if (rc != CS_SUCCESS)
1804 continue;
fba395ee 1805 rc = pcmcia_parse_tuple(link, &tuple, &parse);
c1986ee9
HW		 1806 if (rc != CS_SUCCESS)
1807 continue;
1808
1809 link->conf.ConfigIndex = parse.cftable_entry.index;
1810
1811 if (!parse.cftable_entry.io.nwin)
1812 continue;
1813
1814 /* Get the IOaddr */
1815 link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
1816 link->io.NumPorts1 = parse.cftable_entry.io.win[0].len;
1817 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
1818 if (!(parse.cftable_entry.io.flags & CISTPL_IO_8BIT))
1819 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
1820 if (!(parse.cftable_entry.io.flags & CISTPL_IO_16BIT))
1821 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
1822 link->io.IOAddrLines = parse.cftable_entry.io.flags
1823 & CISTPL_IO_LINES_MASK;
1824
fba395ee 1825 rc = pcmcia_request_io(link, &link->io);
c1986ee9
HW		 1826 if (rc == CS_SUCCESS)
1827 break; /* we are done */
1828 }
1829 if (rc != CS_SUCCESS)
1830 goto cs_release;
1831
1832 link->conf.IntType = 00000002;
1833
1834 if ((fail_rc =
fba395ee 1835 pcmcia_request_configuration(link, &link->conf)) != CS_SUCCESS) {
c1986ee9
HW		 1836 fail_fn = RequestConfiguration;
1837 goto cs_release;
1838 }
1839
1840 dev = link->priv;
1841 sprintf(dev->node.dev_name, DEVICE_NAME "%d", devno);
1842 dev->node.major = major;
1843 dev->node.minor = devno;
1844 dev->node.next = NULL;
fd238232 1845 link->dev_node = &dev->node;
c1986ee9 1846
15b99ac1 1847 return 0;
c1986ee9
HW		 1848
1849cs_failed:
fba395ee 1850 cs_error(link, fail_fn, fail_rc);
c1986ee9
HW		 1851cs_release:
1852 cm4000_release(link);
15b99ac1 1853 return -ENODEV;
c1986ee9
HW		 1854}
1855
fba395ee 1856static int cm4000_suspend(struct pcmcia_device *link)
98e4c28b 1857{
98e4c28b
DB		 1858 struct cm4000_dev *dev;
1859
1860 dev = link->priv;
98e4c28b
DB		 1861 stop_monitor(dev);
1862
1863 return 0;
1864}
1865
fba395ee 1866static int cm4000_resume(struct pcmcia_device *link)
98e4c28b 1867{
98e4c28b
DB		 1868 struct cm4000_dev *dev;
1869
1870 dev = link->priv;
98e4c28b
DB		 1871 if (link->open)
1872 start_monitor(dev);
1873
1874 return 0;
1875}
1876
fba395ee 1877static void cm4000_release(struct pcmcia_device *link)
c1986ee9
HW		 1878{
1879 cmm_cm4000_release(link->priv); /* delay release until device closed */
fba395ee 1880 pcmcia_disable_device(link);
c1986ee9
HW		 1881}
1882
15b99ac1 1883static int cm4000_probe(struct pcmcia_device *link)
c1986ee9
HW		 1884{
1885 struct cm4000_dev *dev;
15b99ac1 1886 int i, ret;
c1986ee9
HW		 1887
1888 for (i = 0; i < CM4000_MAX_DEV; i++)
1889 if (dev_table[i] == NULL)
1890 break;
1891
1892 if (i == CM4000_MAX_DEV) {
1893 printk(KERN_NOTICE MODULE_NAME ": all devices in use\n");
f8cfa618 1894 return -ENODEV;
c1986ee9
HW		 1895 }
1896
1897 /* create a new cm4000_cs device */
1898 dev = kzalloc(sizeof(struct cm4000_dev), GFP_KERNEL);
1899 if (dev == NULL)
f8cfa618 1900 return -ENOMEM;
c1986ee9 1901
fba395ee 1902 dev->p_dev = link;
c1986ee9
HW		 1903 link->priv = dev;
1904 link->conf.IntType = INT_MEMORY_AND_IO;
1905 dev_table[i] = link;
1906
c1986ee9
HW		 1907 init_waitqueue_head(&dev->devq);
1908 init_waitqueue_head(&dev->ioq);
1909 init_waitqueue_head(&dev->atrq);
1910 init_waitqueue_head(&dev->readq);
1911
15b99ac1
DB		 1912 ret = cm4000_config(link, i);
1913 if (ret)
1914 return ret;
f8cfa618 1915
67bc6200
HW		 1916 class_device_create(cmm_class, NULL, MKDEV(major, i), NULL,
1917 "cmm%d", i);
1918
f8cfa618 1919 return 0;
c1986ee9
HW		 1920}
1921
fba395ee 1922static void cm4000_detach(struct pcmcia_device *link)
c1986ee9
HW		 1923{
1924 struct cm4000_dev *dev = link->priv;
cc3b4866 1925 int devno;
c1986ee9 1926
cc3b4866
DB		 1927 /* find device */
1928 for (devno = 0; devno < CM4000_MAX_DEV; devno++)
1929 if (dev_table[devno] == link)
1930 break;
1931 if (devno == CM4000_MAX_DEV)
1932 return;
c1986ee9 1933
cc3b4866 1934 stop_monitor(dev);
c1986ee9 1935
e2d40963 1936 cm4000_release(link);
c1986ee9
HW		 1937
1938 dev_table[devno] = NULL;
cc3b4866 1939 kfree(dev);
c1986ee9 1940
67bc6200
HW		 1941 class_device_destroy(cmm_class, MKDEV(major, devno));
1942
c1986ee9
HW		 1943 return;
1944}
1945
1946static struct file_operations cm4000_fops = {
1947 .owner = THIS_MODULE,
1948 .read = cmm_read,
1949 .write = cmm_write,
1950 .ioctl = cmm_ioctl,
1951 .open = cmm_open,
1952 .release= cmm_close,
1953};
1954
1955static struct pcmcia_device_id cm4000_ids[] = {
1956 PCMCIA_DEVICE_MANF_CARD(0x0223, 0x0002),
1957 PCMCIA_DEVICE_PROD_ID12("CardMan", "4000", 0x2FB368CA, 0xA2BD8C39),
1958 PCMCIA_DEVICE_NULL,
1959};
1960MODULE_DEVICE_TABLE(pcmcia, cm4000_ids);
1961
1962static struct pcmcia_driver cm4000_driver = {
1963 .owner = THIS_MODULE,
1964 .drv = {
1965 .name = "cm4000_cs",
1966 },
15b99ac1 1967 .probe = cm4000_probe,
cc3b4866 1968 .remove = cm4000_detach,
98e4c28b
DB		 1969 .suspend = cm4000_suspend,
1970 .resume = cm4000_resume,
c1986ee9
HW		 1971 .id_table = cm4000_ids,
1972};
1973
1974static int __init cmm_init(void)
1975{
67bc6200
HW		 1976 int rc;
1977
c1986ee9 1978 printk(KERN_INFO "%s\n", version);
67bc6200
HW		 1979
1980 cmm_class = class_create(THIS_MODULE, "cardman_4000");
1981 if (!cmm_class)
1982 return -1;
1983
1984 rc = pcmcia_register_driver(&cm4000_driver);
1985 if (rc < 0)
1986 return rc;
1987
c1986ee9
HW		 1988 major = register_chrdev(0, DEVICE_NAME, &cm4000_fops);
1989 if (major < 0) {
1990 printk(KERN_WARNING MODULE_NAME
1991 ": could not get major number\n");
1992 return -1;
1993 }
1994
1995 return 0;
1996}
1997
1998static void __exit cmm_exit(void)
1999{
c1986ee9
HW		 2000 printk(KERN_INFO MODULE_NAME ": unloading\n");
2001 pcmcia_unregister_driver(&cm4000_driver);
c1986ee9 2002 unregister_chrdev(major, DEVICE_NAME);
67bc6200 2003 class_destroy(cmm_class);
c1986ee9
HW		 2004};
2005
2006module_init(cmm_init);
2007module_exit(cmm_exit);
2008MODULE_LICENSE("Dual BSD/GPL");
Linux 6.x block layer and io_uring tree(s)