2 * A driver for the PCMCIA Smartcard Reader "Omnikey CardMan Mobile 4000"
4 * cm4000_cs.c support.linux@omnikey.com
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
12 * current version: 2.4.0gm4
14 * (C) 2000,2001,2002,2003,2004 Omnikey AG
16 * (C) 2005-2006 Harald Welte <laforge@gnumonks.org>
17 * - Adhere to Kernel CodingStyle
18 * - Port to 2.6.13 "new" style PCMCIA
19 * - Check for copy_{from,to}_user return values
20 * - Use nonseekable_open()
21 * - add class interface for udev device creation
23 * All rights reserved. Licensed under dual BSD/GPL license.
26 #include <linux/kernel.h>
27 #include <linux/module.h>
28 #include <linux/slab.h>
29 #include <linux/init.h>
31 #include <linux/delay.h>
32 #include <linux/bitrev.h>
33 #include <linux/smp_lock.h>
34 #include <linux/uaccess.h>
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>
44 #include <linux/cm4000_cs.h>
46 /* #define ATR_CSUM */
48 #define reader_to_dev(x) (&x->p_dev->dev)
50 /* n (debug level) is ignored */
51 /* additional debug output may be enabled by re-compiling with
53 /* #define CM4000_DEBUG */
54 #define DEBUGP(n, rdr, x, args...) do { \
55 dev_dbg(reader_to_dev(rdr), "%s:" x, \
56 __func__ , ## args); \
59 static char *version = "cm4000_cs.c v2.4.0gm6 - All bugs added by Harald Welte";
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)
69 static void cm4000_release(struct pcmcia_device *link);
71 static int major; /* major number we get from the kernel */
73 /* note: the first state has to have number 0 always */
76 #define M_TIMEOUT_WAIT 1
77 #define M_READ_ATR_LEN 2
79 #define M_ATR_PRESENT 4
84 #define LOCK_MONITOR 1
86 #define IS_AUTOPPS_ACT 6
87 #define IS_PROCBYTE_PRESENT 7
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
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)
108 struct pcmcia_device *p_dev;
109 dev_node_t node; /* OS node (major,minor) */
111 unsigned char atr[MAX_ATR];
112 unsigned char rbuf[512];
113 unsigned char sbuf[512];
115 wait_queue_head_t devq; /* when removing cardman must not be
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 */
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 */
136 unsigned int baudv; /* baud value for speed */
138 unsigned char proto; /* T=0, T=1, ... */
139 unsigned long flags; /* lock+flags (MONITOR,IO,ATR) * for concurrent
142 unsigned char pts[4];
144 struct timer_list timer; /* used to keep monitor running */
148 #define ZERO_DEV(dev) \
149 memset(&dev->atr_csum,0, \
150 sizeof(struct cm4000_dev) - \
151 offsetof(struct cm4000_dev, atr_csum))
153 static struct pcmcia_device *dev_table[CM4000_MAX_DEV];
154 static struct class *cmm_class;
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 */
159 static unsigned char fi_di_table[10][14] = {
160 /*FI 00 01 02 03 04 05 06 07 08 09 10 11 12 13 */
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}
178 static inline void xoutb(unsigned char val, unsigned short port)
180 pr_debug("outb(val=%.2x,port=%.4x)\n", val, port);
183 static inline unsigned char xinb(unsigned short port)
188 pr_debug("%.2x=inb(%.4x)\n", val, port);
194 static inline unsigned char invert_revert(unsigned char ch)
199 static void str_invert_revert(unsigned char *b, int len)
203 for (i = 0; i < len; i++)
204 b[i] = invert_revert(b[i]);
207 #define ATRLENCK(dev,pos) \
208 if (pos>=dev->atr_len || pos>=MAX_ATR) \
211 static unsigned int calc_baudv(unsigned char fidi)
213 unsigned int wcrcf, wbrcf, fi_rfu, di_rfu;
219 switch ((fidi >> 4) & 0x0F) {
268 switch (fidi & 0x0F) {
304 return (wcrcf / wbrcf);
307 static unsigned short io_read_num_rec_bytes(unsigned int iobase,
315 tmp = inb(REG_NUM_BYTES(iobase)) |
316 (inb(REG_FLAGS0(iobase)) & 4 ? 0x100 : 0);
322 static int parse_atr(struct cm4000_dev *dev)
324 unsigned char any_t1, any_t0;
325 unsigned char ch, ifno;
328 DEBUGP(3, dev, "-> parse_atr: dev->atr_len = %i\n", dev->atr_len);
330 if (dev->atr_len < 3) {
331 DEBUGP(5, dev, "parse_atr: atr_len < 3\n");
335 if (dev->atr[0] == 0x3f)
336 set_bit(IS_INVREV, &dev->flags);
338 clear_bit(IS_INVREV, &dev->flags);
342 dev->proto = 0; /* XXX PROTO */
343 any_t1 = any_t0 = done = 0;
344 dev->ta1 = 0x11; /* defaults to 9600 baud */
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);
351 } else if ((ifno == 2) && (ch & 0x10)) { /* TA(2) */
356 DEBUGP(5, dev, "Yi=%.2x\n", ch & 0xf0);
357 ix += ((ch & 0x10) >> 4) /* no of int.face chars */
360 + ((ch & 0x80) >> 7);
361 /* ATRLENCK(dev,ix); */
362 if (ch & 0x80) { /* TDi */
366 DEBUGP(5, dev, "card is capable of T=1\n");
369 DEBUGP(5, dev, "card is capable of T=0\n");
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");
382 set_bit(IS_ANY_T0, &dev->flags);
384 if (any_t1) { /* compute csum */
387 for (i = 1; i < dev->atr_len; i++)
388 dev->atr_csum ^= dev->atr[i];
390 set_bit(IS_BAD_CSUM, &dev->flags);
391 DEBUGP(5, dev, "bad checksum\n");
396 dev->proto = 1; /* XXX PROTO */
397 set_bit(IS_ANY_T1, &dev->flags);
409 static struct card_fixup card_fixups[] = {
411 .atr = { 0x3b, 0xb3, 0x11, 0x00, 0x00, 0x41, 0x01 },
416 .atr = {0x3b, 0x76, 0x13, 0x00, 0x00, 0x80, 0x62, 0x07,
423 static void set_cardparameter(struct cm4000_dev *dev)
426 unsigned int iobase = dev->p_dev->io.BasePort1;
427 u_int8_t stopbits = 0x02; /* ISO default */
429 DEBUGP(3, dev, "-> set_cardparameter\n");
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);
436 xoutb((unsigned char)((dev->baudv - 1) & 0xFF), REG_BAUDRATE(iobase));
438 DEBUGP(5, dev, "baudv = %i -> write 0x%02x\n", dev->baudv,
439 ((dev->baudv - 1) & 0xFF));
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;
447 xoutb(stopbits, REG_STOPBITS(iobase));
449 DEBUGP(3, dev, "<- set_cardparameter\n");
452 static int set_protocol(struct cm4000_dev *dev, struct ptsreq *ptsreq)
455 unsigned long tmp, i;
456 unsigned short num_bytes_read;
457 unsigned char pts_reply[4];
459 unsigned int iobase = dev->p_dev->io.BasePort1;
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,
470 /* Fill PTS structure */
473 tmp = ptsreq->protocol;
474 while ((tmp = (tmp >> 1)) > 0)
476 dev->proto = dev->pts[1]; /* Set new protocol */
477 dev->pts[1] = (0x01 << 4) | (dev->pts[1]);
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];
484 /* Calculate PCK character */
485 dev->pts[3] = dev->pts[0] ^ dev->pts[1] ^ dev->pts[2];
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]);
490 /* check card convention */
491 if (test_bit(IS_INVREV, &dev->flags))
492 str_invert_revert(dev->pts, 4);
495 xoutb(0x80, REG_FLAGS0(iobase));
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));
504 DEBUGP(5, dev, "Enable message buffer -> flags1 = 0x%.2x\n",
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 */
513 pr_debug("0x%.2x ", dev->pts[i]);
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));
524 /* Trigger CARDMAN CONTROLLER */
525 xoutb(0x50, REG_FLAGS0(iobase));
527 /* Monitor progress */
528 /* wait for xmit done */
529 DEBUGP(5, dev, "Waiting for NumRecBytes getting valid\n");
531 for (i = 0; i < 100; i++) {
532 if (inb(REG_FLAGS0(iobase)) & 0x08) {
533 DEBUGP(5, dev, "NumRecBytes is valid\n");
539 DEBUGP(5, dev, "Timeout waiting for NumRecBytes getting "
542 goto exit_setprotocol;
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);
555 /* check whether it is a short PTS reply? */
556 if (num_bytes_read == 3)
560 DEBUGP(5, dev, "Timeout reading num_bytes_read\n");
562 goto exit_setprotocol;
565 DEBUGP(5, dev, "Reset the CARDMAN CONTROLLER\n");
566 xoutb(0x80, REG_FLAGS0(iobase));
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));
576 DEBUGP(2, dev, "PTSreply: ");
577 for (i = 0; i < num_bytes_read; i++) {
578 pr_debug("0x%.2x ", pts_reply[i]);
581 #endif /* CM4000_DEBUG */
583 DEBUGP(5, dev, "Clear Tactive in Flags1\n");
584 xoutb(0x20, REG_FLAGS1(iobase));
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);
603 DEBUGP(3, dev, "<- set_protocol\n");
607 static int io_detect_cm4000(unsigned int iobase, struct cm4000_dev *dev)
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 */
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 */
623 /* clear detectCMM again by restoring original flags1 */
624 xoutb(dev->flags1, REG_FLAGS1(iobase));
628 static void terminate_monitor(struct cm4000_dev *dev)
631 /* tell the monitor to stop and wait until
634 DEBUGP(3, dev, "-> terminate_monitor\n");
635 wait_event_interruptible(dev->devq,
636 test_and_set_bit(LOCK_MONITOR,
637 (void *)&dev->flags));
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.
644 DEBUGP(5, dev, "Now allow last cycle of monitor!\n");
645 while (test_bit(LOCK_MONITOR, (void *)&dev->flags))
648 DEBUGP(5, dev, "Delete timer\n");
649 del_timer_sync(&dev->timer);
651 dev->monitor_running = 0;
654 DEBUGP(3, dev, "<- terminate_monitor\n");
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.
665 static void monitor_card(unsigned long p)
667 struct cm4000_dev *dev = (struct cm4000_dev *) p;
668 unsigned int iobase = dev->p_dev->io.BasePort1;
670 struct ptsreq ptsreq;
673 DEBUGP(7, dev, "-> monitor_card\n");
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");
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");
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;
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");
704 if ((dev->flags0 & 1) == 0 /* no smartcard inserted */
705 || dev->flags0 == 0xff) { /* no cardman inserted */
709 dev->atr_csum = dev->atr_len_retry = dev->cwarn = 0;
710 dev->mstate = M_FETCH_ATR;
712 dev->flags &= 0x000000ff; /* only keep IO and MONITOR locks */
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);
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);
731 if (test_bit(IS_ATR_VALID, &dev->flags) == 1) {
732 DEBUGP(7, dev, "believe ATR is already valid (do nothing)\n");
736 switch (dev->mstate) {
737 unsigned char flags0;
739 DEBUGP(4, dev, "M_CARDOFF\n");
740 flags0 = inb(REG_FLAGS0(iobase));
742 /* wait until Flags0 indicate power is off */
743 dev->mdelay = T_10MSEC;
745 /* Flags0 indicate power off and no card inserted now;
746 * Reset CARDMAN CONTROLLER */
747 xoutb(0x80, REG_FLAGS0(iobase));
749 /* prepare for fetching ATR again: after card off ATR
750 * is read again automatically */
754 dev->atr_len_retry = dev->cwarn = 0;
755 dev->mstate = M_FETCH_ATR;
757 /* minimal gap between CARDOFF and read ATR is 50msec */
758 dev->mdelay = T_50MSEC;
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
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;
776 DEBUGP(4, dev, "M_TIMEOUT_WAIT\n");
778 io_read_num_rec_bytes(iobase, &dev->atr_len);
779 dev->mdelay = T_10MSEC;
780 dev->mstate = M_READ_ATR_LEN;
783 DEBUGP(4, dev, "M_READ_ATR_LEN\n");
784 /* infinite loop possible, since there is no timeout */
786 #define MAX_ATR_LEN_RETRY 100
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;
795 dev->atr_len_retry = 0; /* set new timeout */
798 DEBUGP(4, dev, "Current ATR_LEN = %i\n", dev->atr_len);
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));
807 /* Deactivate T_Active flags */
808 DEBUGP(4, dev, "Deactivate T_Active flags\n");
810 xoutb(dev->flags1, REG_FLAGS1(iobase));
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 */
819 dev->mstate = M_BAD_CARD;
821 dev->mdelay = T_50MSEC;
822 dev->mstate = M_ATR_PRESENT;
823 set_bit(IS_ATR_VALID, &dev->flags);
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);
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);
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);
855 dev->atr_len_retry = dev->cwarn = 0;
856 dev->mstate = M_FETCH_ATR;
858 dev->mdelay = T_50MSEC;
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 "
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);
878 DEBUGP(4, dev, "ATR invalid\n");
879 wake_up_interruptible(&dev->atrq);
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: ",
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);
894 else if (test_bit(IS_BAD_LENGTH, &dev->flags)) {
895 DEBUGP(4, dev, "ATR length error\n");
897 DEBUGP(4, dev, "card damaged or wrong way "
902 wake_up_interruptible(&dev->atrq); /* wake open */
905 dev->mdelay = T_100MSEC;
906 dev->mstate = M_FETCH_ATR;
909 DEBUGP(7, dev, "Unknown action\n");
914 DEBUGP(7, dev, "release_io\n");
915 clear_bit(LOCK_IO, &dev->flags);
916 wake_up_interruptible(&dev->ioq); /* whoever needs IO */
919 DEBUGP(7, dev, "<- monitor_card (returns with timer)\n");
920 mod_timer(&dev->timer, jiffies + dev->mdelay);
921 clear_bit(LOCK_MONITOR, &dev->flags);
924 /* Interface to userland (file_operations) */
926 static ssize_t cmm_read(struct file *filp, __user char *buf, size_t count,
929 struct cm4000_dev *dev = filp->private_data;
930 unsigned int iobase = dev->p_dev->io.BasePort1;
934 DEBUGP(2, dev, "-> cmm_read(%s,%d)\n", current->comm, current->pid);
936 if (count == 0) /* according to manpage */
939 if (!pcmcia_dev_present(dev->p_dev) || /* device removed */
940 test_bit(IS_CMM_ABSENT, &dev->flags))
943 if (test_bit(IS_BAD_CSUM, &dev->flags))
946 /* also see the note about this in cmm_write */
947 if (wait_event_interruptible
949 ((filp->f_flags & O_NONBLOCK)
950 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) {
951 if (filp->f_flags & O_NONBLOCK)
956 if (test_bit(IS_ATR_VALID, &dev->flags) == 0)
959 /* this one implements blocking IO */
960 if (wait_event_interruptible
962 ((filp->f_flags & O_NONBLOCK) || (dev->rpos < dev->rlen)))) {
963 if (filp->f_flags & O_NONBLOCK)
969 if (wait_event_interruptible
971 ((filp->f_flags & O_NONBLOCK)
972 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) {
973 if (filp->f_flags & O_NONBLOCK)
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);
991 DEBUGP(4, dev, "begin read answer\n");
992 j = min(count, (size_t)(dev->rlen - dev->rpos));
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));
1001 j = min(count, (size_t)(dev->rlen - dev->rpos));
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));
1012 if (dev->proto == 0 && count > dev->rlen - dev->rpos && i) {
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;
1020 dev->rpos = dev->rlen + 1;
1022 /* Clear T1Active */
1023 DEBUGP(4, dev, "Clear T1Active\n");
1024 dev->flags1 &= 0xdf;
1025 xoutb(dev->flags1, REG_FLAGS1(iobase));
1027 xoutb(0, REG_FLAGS1(iobase)); /* clear detectCMM */
1028 /* last check before exit */
1029 if (!io_detect_cm4000(iobase, dev)) {
1034 if (test_bit(IS_INVREV, &dev->flags) && count > 0)
1035 str_invert_revert(dev->rbuf, count);
1037 if (copy_to_user(buf, dev->rbuf, count))
1041 clear_bit(LOCK_IO, &dev->flags);
1042 wake_up_interruptible(&dev->ioq);
1044 DEBUGP(2, dev, "<- cmm_read returns: rc = %Zi\n",
1045 (rc < 0 ? rc : count));
1046 return rc < 0 ? rc : count;
1049 static ssize_t cmm_write(struct file *filp, const char __user *buf,
1050 size_t count, loff_t *ppos)
1052 struct cm4000_dev *dev = filp->private_data;
1053 unsigned int iobase = dev->p_dev->io.BasePort1;
1056 unsigned char infolen;
1057 unsigned char sendT0;
1058 unsigned short nsend;
1063 DEBUGP(2, dev, "-> cmm_write(%s,%d)\n", current->comm, current->pid);
1065 if (count == 0) /* according to manpage */
1068 if (dev->proto == 0 && count < 4) {
1069 /* T0 must have at least 4 bytes */
1070 DEBUGP(4, dev, "T0 short write\n");
1074 nr = count & 0x1ff; /* max bytes to write */
1076 sendT0 = dev->proto ? 0 : nr > 5 ? 0x08 : 0;
1078 if (!pcmcia_dev_present(dev->p_dev) || /* device removed */
1079 test_bit(IS_CMM_ABSENT, &dev->flags))
1082 if (test_bit(IS_BAD_CSUM, &dev->flags)) {
1083 DEBUGP(4, dev, "bad csum\n");
1088 * wait for atr to become valid.
1089 * note: it is important to lock this code. if we dont, the monitor
1090 * could be run between test_bit and the call to sleep on the
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!
1098 if (wait_event_interruptible
1100 ((filp->f_flags & O_NONBLOCK)
1101 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) {
1102 if (filp->f_flags & O_NONBLOCK)
1104 return -ERESTARTSYS;
1107 if (test_bit(IS_ATR_VALID, &dev->flags) == 0) { /* invalid atr */
1108 DEBUGP(4, dev, "invalid ATR\n");
1113 if (wait_event_interruptible
1115 ((filp->f_flags & O_NONBLOCK)
1116 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) {
1117 if (filp->f_flags & O_NONBLOCK)
1119 return -ERESTARTSYS;
1122 if (copy_from_user(dev->sbuf, buf, ((count > 512) ? 512 : count)))
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);
1134 DEBUGP(4, dev, "IO error\n");
1140 xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */
1142 if (!io_detect_cm4000(iobase, dev)) {
1147 /* reflect T=0 send/read mode in flags1 */
1148 dev->flags1 |= (sendT0);
1150 set_cardparameter(dev);
1152 /* dummy read, reset flag procedure received */
1153 tmp = inb(REG_FLAGS1(iobase));
1155 dev->flags1 = 0x20 /* T_Active */
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));
1163 DEBUGP(4, dev, "Xmit data\n");
1164 for (i = 0; i < nr; i++) {
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));
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));
1184 xoutb(i, REG_BUF_ADDR(iobase));
1185 xoutb(dev->sbuf[i], REG_BUF_DATA(iobase));
1188 DEBUGP(4, dev, "Xmit done\n");
1190 if (dev->proto == 0) {
1191 /* T=0 proto: 0 byte reply */
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));
1198 xoutb(0x00, REG_BUF_DATA(iobase));
1208 nsend = 5 + (unsigned char)dev->sbuf[4];
1209 if (dev->sbuf[4] == 0)
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));
1222 DEBUGP(4, dev, "T=0 set Procedure byte 0x%.2x\n", dev->sbuf[1]);
1223 xoutb(dev->sbuf[1], REG_NUM_BYTES(iobase));
1226 DEBUGP(1, dev, "set NumSendBytes = 0x%.2x\n",
1227 (unsigned char)(nsend & 0xff));
1228 xoutb((unsigned char)(nsend & 0xff), REG_NUM_SEND(iobase));
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));
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)
1247 msleep_interruptible(10);
1250 DEBUGP(4, dev, "timeout waiting for xmit done\n");
1256 /* T=1: wait for infoLen */
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);
1264 infolen = inb(REG_FLAGS1(iobase));
1265 DEBUGP(4, dev, "infolen=%d\n", infolen);
1268 msleep_interruptible(10);
1271 DEBUGP(4, dev, "timeout waiting for infoLen\n");
1276 clear_bit(IS_PROCBYTE_PRESENT, &dev->flags);
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 */
1282 if (dev->rlen >= infolen + 4)
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 */
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.
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");
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",
1312 i = 0; /* resettimeout */
1314 if (inb(REG_FLAGS0(iobase)) & 0x08) {
1315 DEBUGP(1, dev, "T0Done flag (read reply)\n");
1320 infolen = inb(REG_FLAGS1(iobase));
1323 DEBUGP(1, dev, "timeout waiting for numRecBytes\n");
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)
1332 msleep_interruptible(10);
1335 DEBUGP(1, dev, "timeout waiting for T0Done\n");
1340 dev->procbyte = inb(REG_FLAGS1(iobase));
1341 DEBUGP(4, dev, "Read procedure byte 0x%.2x\n",
1344 io_read_num_rec_bytes(iobase, &dev->rlen);
1345 DEBUGP(4, dev, "Read NumRecBytes = %i\n", dev->rlen);
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);
1355 DEBUGP(4, dev, "Reset SM\n");
1356 xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */
1359 DEBUGP(4, dev, "Write failed but clear T_Active\n");
1360 dev->flags1 &= 0xdf;
1361 xoutb(dev->flags1, REG_FLAGS1(iobase));
1364 clear_bit(LOCK_IO, &dev->flags);
1365 wake_up_interruptible(&dev->ioq);
1366 wake_up_interruptible(&dev->readq); /* tell read we have data */
1368 /* ITSEC E2: clear write buffer */
1369 memset((char *)dev->sbuf, 0, 512);
1371 /* return error or actually written bytes */
1372 DEBUGP(2, dev, "<- cmm_write\n");
1373 return rc < 0 ? rc : nr;
1376 static void start_monitor(struct cm4000_dev *dev)
1378 DEBUGP(3, dev, "-> start_monitor\n");
1379 if (!dev->monitor_running) {
1380 DEBUGP(5, dev, "create, init and add timer\n");
1381 setup_timer(&dev->timer, monitor_card, (unsigned long)dev);
1382 dev->monitor_running = 1;
1383 mod_timer(&dev->timer, jiffies);
1385 DEBUGP(5, dev, "monitor already running\n");
1386 DEBUGP(3, dev, "<- start_monitor\n");
1389 static void stop_monitor(struct cm4000_dev *dev)
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);
1399 DEBUGP(5, dev, "monitor already stopped\n");
1400 DEBUGP(3, dev, "<- stop_monitor\n");
1403 static long cmm_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
1405 struct cm4000_dev *dev = filp->private_data;
1406 unsigned int iobase = dev->p_dev->io.BasePort1;
1407 struct inode *inode = filp->f_path.dentry->d_inode;
1408 struct pcmcia_device *link;
1411 void __user *argp = (void __user *)arg;
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",
1420 DEBUGP(3, dev, "cmm_ioctl(device=%d.%d) %s\n", imajor(inode),
1421 iminor(inode), ioctl_names[_IOC_NR(cmd)]);
1426 link = dev_table[iminor(inode)];
1427 if (!pcmcia_dev_present(link)) {
1428 DEBUGP(4, dev, "DEV_OK false\n");
1432 if (test_bit(IS_CMM_ABSENT, &dev->flags)) {
1433 DEBUGP(4, dev, "CMM_ABSENT flag set\n");
1438 if (_IOC_TYPE(cmd) != CM_IOC_MAGIC) {
1439 DEBUGP(4, dev, "ioctype mismatch\n");
1442 if (_IOC_NR(cmd) > CM_IOC_MAXNR) {
1443 DEBUGP(4, dev, "iocnr mismatch\n");
1446 size = _IOC_SIZE(cmd);
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);
1451 if (_IOC_DIR(cmd) & _IOC_READ) {
1452 if (!access_ok(VERIFY_WRITE, argp, size))
1455 if (_IOC_DIR(cmd) & _IOC_WRITE) {
1456 if (!access_ok(VERIFY_READ, argp, size))
1463 DEBUGP(4, dev, " ... in CM_IOCGSTATUS\n");
1467 /* clear other bits, but leave inserted & powered as
1469 status = dev->flags0 & 3;
1470 if (test_bit(IS_ATR_PRESENT, &dev->flags))
1471 status |= CM_ATR_PRESENT;
1472 if (test_bit(IS_ATR_VALID, &dev->flags))
1473 status |= CM_ATR_VALID;
1474 if (test_bit(IS_CMM_ABSENT, &dev->flags))
1475 status |= CM_NO_READER;
1476 if (test_bit(IS_BAD_CARD, &dev->flags))
1477 status |= CM_BAD_CARD;
1478 if (copy_to_user(argp, &status, sizeof(int)))
1483 DEBUGP(4, dev, "... in CM_IOCGATR\n");
1485 struct atreq __user *atreq = argp;
1487 /* allow nonblocking io and being interrupted */
1488 if (wait_event_interruptible
1490 ((filp->f_flags & O_NONBLOCK)
1491 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags)
1493 if (filp->f_flags & O_NONBLOCK)
1501 if (test_bit(IS_ATR_VALID, &dev->flags) == 0) {
1503 if (copy_to_user(&(atreq->atr_len), &tmp,
1507 if (copy_to_user(atreq->atr, dev->atr,
1512 if (copy_to_user(&(atreq->atr_len), &tmp, sizeof(int)))
1521 DEBUGP(4, dev, "... in CM_IOCARDOFF\n");
1522 if (dev->flags0 & 0x01) {
1523 DEBUGP(4, dev, " Card inserted\n");
1525 DEBUGP(2, dev, " No card inserted\n");
1527 if (dev->flags0 & 0x02) {
1528 DEBUGP(4, dev, " Card powered\n");
1530 DEBUGP(2, dev, " Card not powered\n");
1534 /* is a card inserted and powered? */
1535 if ((dev->flags0 & 0x01) && (dev->flags0 & 0x02)) {
1538 if (wait_event_interruptible
1540 ((filp->f_flags & O_NONBLOCK)
1541 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags)
1543 if (filp->f_flags & O_NONBLOCK)
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
1558 ((filp->f_flags & O_NONBLOCK)
1559 || (test_bit(IS_ATR_VALID, (void *)&dev->flags) !=
1561 if (filp->f_flags & O_NONBLOCK)
1569 clear_bit(LOCK_IO, &dev->flags);
1570 wake_up_interruptible(&dev->ioq);
1576 struct ptsreq krnptsreq;
1578 if (copy_from_user(&krnptsreq, argp,
1579 sizeof(struct ptsreq))) {
1585 DEBUGP(4, dev, "... in CM_IOCSPTS\n");
1586 /* wait for ATR to get valid */
1587 if (wait_event_interruptible
1589 ((filp->f_flags & O_NONBLOCK)
1590 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags)
1592 if (filp->f_flags & O_NONBLOCK)
1599 if (wait_event_interruptible
1601 ((filp->f_flags & O_NONBLOCK)
1602 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags)
1604 if (filp->f_flags & O_NONBLOCK)
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);
1617 clear_bit(LOCK_IO, &dev->flags);
1618 wake_up_interruptible(&dev->ioq);
1628 DEBUGP(4, dev, "... in default (unknown IOCTL code)\n");
1636 static int cmm_open(struct inode *inode, struct file *filp)
1638 struct cm4000_dev *dev;
1639 struct pcmcia_device *link;
1640 int minor = iminor(inode);
1643 if (minor >= CM4000_MAX_DEV)
1647 link = dev_table[minor];
1648 if (link == NULL || !pcmcia_dev_present(link)) {
1659 filp->private_data = dev;
1661 DEBUGP(2, dev, "-> cmm_open(device=%d.%d process=%s,%d)\n",
1662 imajor(inode), minor, current->comm, current->pid);
1664 /* init device variables, they may be "polluted" after close
1665 * or, the device may never have been closed (i.e. open failed)
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
1676 if (filp->f_flags & O_NONBLOCK) {
1681 dev->mdelay = T_50MSEC;
1683 /* start monitoring the cardstatus */
1686 link->open = 1; /* only one open per device */
1688 DEBUGP(2, dev, "<- cmm_open\n");
1689 ret = nonseekable_open(inode, filp);
1695 static int cmm_close(struct inode *inode, struct file *filp)
1697 struct cm4000_dev *dev;
1698 struct pcmcia_device *link;
1699 int minor = iminor(inode);
1701 if (minor >= CM4000_MAX_DEV)
1704 link = dev_table[minor];
1710 DEBUGP(2, dev, "-> cmm_close(maj/min=%d.%d)\n",
1711 imajor(inode), minor);
1717 link->open = 0; /* only one open per device */
1718 wake_up(&dev->devq); /* socket removed? */
1720 DEBUGP(2, dev, "cmm_close\n");
1724 static void cmm_cm4000_release(struct pcmcia_device * link)
1726 struct cm4000_dev *dev = link->priv;
1728 /* dont terminate the monitor, rather rely on
1729 * close doing that for us.
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_ !
1739 wait_event(dev->devq, (link->open == 0));
1741 /* dev->devq=NULL; this cannot be zeroed earlier */
1742 DEBUGP(3, dev, "<- cmm_cm4000_release\n");
1746 /*==== Interface to PCMCIA Layer =======================================*/
1748 static int cm4000_config_check(struct pcmcia_device *p_dev,
1749 cistpl_cftable_entry_t *cfg,
1750 cistpl_cftable_entry_t *dflt,
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;
1767 return pcmcia_request_io(p_dev, &p_dev->io);
1770 static int cm4000_config(struct pcmcia_device * link, int devno)
1772 struct cm4000_dev *dev;
1774 /* read the config-tuples */
1775 if (pcmcia_loop_config(link, cm4000_config_check, NULL))
1778 link->conf.IntType = 00000002;
1780 if (pcmcia_request_configuration(link, &link->conf))
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;
1788 link->dev_node = &dev->node;
1793 cm4000_release(link);
1797 static int cm4000_suspend(struct pcmcia_device *link)
1799 struct cm4000_dev *dev;
1807 static int cm4000_resume(struct pcmcia_device *link)
1809 struct cm4000_dev *dev;
1818 static void cm4000_release(struct pcmcia_device *link)
1820 cmm_cm4000_release(link); /* delay release until device closed */
1821 pcmcia_disable_device(link);
1824 static int cm4000_probe(struct pcmcia_device *link)
1826 struct cm4000_dev *dev;
1829 for (i = 0; i < CM4000_MAX_DEV; i++)
1830 if (dev_table[i] == NULL)
1833 if (i == CM4000_MAX_DEV) {
1834 printk(KERN_NOTICE MODULE_NAME ": all devices in use\n");
1838 /* create a new cm4000_cs device */
1839 dev = kzalloc(sizeof(struct cm4000_dev), GFP_KERNEL);
1845 link->conf.IntType = INT_MEMORY_AND_IO;
1846 dev_table[i] = link;
1848 init_waitqueue_head(&dev->devq);
1849 init_waitqueue_head(&dev->ioq);
1850 init_waitqueue_head(&dev->atrq);
1851 init_waitqueue_head(&dev->readq);
1853 ret = cm4000_config(link, i);
1855 dev_table[i] = NULL;
1860 device_create(cmm_class, NULL, MKDEV(major, i), NULL, "cmm%d", i);
1865 static void cm4000_detach(struct pcmcia_device *link)
1867 struct cm4000_dev *dev = link->priv;
1871 for (devno = 0; devno < CM4000_MAX_DEV; devno++)
1872 if (dev_table[devno] == link)
1874 if (devno == CM4000_MAX_DEV)
1879 cm4000_release(link);
1881 dev_table[devno] = NULL;
1884 device_destroy(cmm_class, MKDEV(major, devno));
1889 static const struct file_operations cm4000_fops = {
1890 .owner = THIS_MODULE,
1893 .unlocked_ioctl = cmm_ioctl,
1895 .release= cmm_close,
1898 static struct pcmcia_device_id cm4000_ids[] = {
1899 PCMCIA_DEVICE_MANF_CARD(0x0223, 0x0002),
1900 PCMCIA_DEVICE_PROD_ID12("CardMan", "4000", 0x2FB368CA, 0xA2BD8C39),
1903 MODULE_DEVICE_TABLE(pcmcia, cm4000_ids);
1905 static struct pcmcia_driver cm4000_driver = {
1906 .owner = THIS_MODULE,
1908 .name = "cm4000_cs",
1910 .probe = cm4000_probe,
1911 .remove = cm4000_detach,
1912 .suspend = cm4000_suspend,
1913 .resume = cm4000_resume,
1914 .id_table = cm4000_ids,
1917 static int __init cmm_init(void)
1921 printk(KERN_INFO "%s\n", version);
1923 cmm_class = class_create(THIS_MODULE, "cardman_4000");
1924 if (IS_ERR(cmm_class))
1925 return PTR_ERR(cmm_class);
1927 major = register_chrdev(0, DEVICE_NAME, &cm4000_fops);
1929 printk(KERN_WARNING MODULE_NAME
1930 ": could not get major number\n");
1931 class_destroy(cmm_class);
1935 rc = pcmcia_register_driver(&cm4000_driver);
1937 unregister_chrdev(major, DEVICE_NAME);
1938 class_destroy(cmm_class);
1945 static void __exit cmm_exit(void)
1947 printk(KERN_INFO MODULE_NAME ": unloading\n");
1948 pcmcia_unregister_driver(&cm4000_driver);
1949 unregister_chrdev(major, DEVICE_NAME);
1950 class_destroy(cmm_class);
1953 module_init(cmm_init);
1954 module_exit(cmm_exit);
1955 MODULE_LICENSE("Dual BSD/GPL");