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/cistpl.h>
38 #include <pcmcia/cisreg.h>
39 #include <pcmcia/ciscode.h>
40 #include <pcmcia/ds.h>
42 #include <linux/cm4000_cs.h>
44 /* #define ATR_CSUM */
46 #define reader_to_dev(x) (&x->p_dev->dev)
48 /* n (debug level) is ignored */
49 /* additional debug output may be enabled by re-compiling with
51 /* #define CM4000_DEBUG */
52 #define DEBUGP(n, rdr, x, args...) do { \
53 dev_dbg(reader_to_dev(rdr), "%s:" x, \
54 __func__ , ## args); \
57 static char *version
= "cm4000_cs.c v2.4.0gm6 - All bugs added by Harald Welte";
60 #define T_10MSEC msecs_to_jiffies(10)
61 #define T_20MSEC msecs_to_jiffies(20)
62 #define T_40MSEC msecs_to_jiffies(40)
63 #define T_50MSEC msecs_to_jiffies(50)
64 #define T_100MSEC msecs_to_jiffies(100)
65 #define T_500MSEC msecs_to_jiffies(500)
67 static void cm4000_release(struct pcmcia_device
*link
);
69 static int major
; /* major number we get from the kernel */
71 /* note: the first state has to have number 0 always */
74 #define M_TIMEOUT_WAIT 1
75 #define M_READ_ATR_LEN 2
77 #define M_ATR_PRESENT 4
82 #define LOCK_MONITOR 1
84 #define IS_AUTOPPS_ACT 6
85 #define IS_PROCBYTE_PRESENT 7
89 #define IS_ATR_PRESENT 11
90 #define IS_ATR_VALID 12
91 #define IS_CMM_ABSENT 13
92 #define IS_BAD_LENGTH 14
93 #define IS_BAD_CSUM 15
94 #define IS_BAD_CARD 16
96 #define REG_FLAGS0(x) (x + 0)
97 #define REG_FLAGS1(x) (x + 1)
98 #define REG_NUM_BYTES(x) (x + 2)
99 #define REG_BUF_ADDR(x) (x + 3)
100 #define REG_BUF_DATA(x) (x + 4)
101 #define REG_NUM_SEND(x) (x + 5)
102 #define REG_BAUDRATE(x) (x + 6)
103 #define REG_STOPBITS(x) (x + 7)
106 struct pcmcia_device
*p_dev
;
108 unsigned char atr
[MAX_ATR
];
109 unsigned char rbuf
[512];
110 unsigned char sbuf
[512];
112 wait_queue_head_t devq
; /* when removing cardman must not be
115 wait_queue_head_t ioq
; /* if IO is locked, wait on this Q */
116 wait_queue_head_t atrq
; /* wait for ATR valid */
117 wait_queue_head_t readq
; /* used by write to wake blk.read */
119 /* warning: do not move this fields.
120 * initialising to zero depends on it - see ZERO_DEV below. */
121 unsigned char atr_csum
;
122 unsigned char atr_len_retry
;
123 unsigned short atr_len
;
124 unsigned short rlen
; /* bytes avail. after write */
125 unsigned short rpos
; /* latest read pos. write zeroes */
126 unsigned char procbyte
; /* T=0 procedure byte */
127 unsigned char mstate
; /* state of card monitor */
128 unsigned char cwarn
; /* slow down warning */
129 unsigned char flags0
; /* cardman IO-flags 0 */
130 unsigned char flags1
; /* cardman IO-flags 1 */
131 unsigned int mdelay
; /* variable monitor speeds, in jiffies */
133 unsigned int baudv
; /* baud value for speed */
135 unsigned char proto
; /* T=0, T=1, ... */
136 unsigned long flags
; /* lock+flags (MONITOR,IO,ATR) * for concurrent
139 unsigned char pts
[4];
141 struct timer_list timer
; /* used to keep monitor running */
145 #define ZERO_DEV(dev) \
146 memset(&dev->atr_csum,0, \
147 sizeof(struct cm4000_dev) - \
148 offsetof(struct cm4000_dev, atr_csum))
150 static struct pcmcia_device
*dev_table
[CM4000_MAX_DEV
];
151 static struct class *cmm_class
;
153 /* This table doesn't use spaces after the comma between fields and thus
154 * violates CodingStyle. However, I don't really think wrapping it around will
155 * make it any clearer to read -HW */
156 static unsigned char fi_di_table
[10][14] = {
157 /*FI 00 01 02 03 04 05 06 07 08 09 10 11 12 13 */
159 /* 0 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11},
160 /* 1 */ {0x01,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x91,0x11,0x11,0x11,0x11},
161 /* 2 */ {0x02,0x12,0x22,0x32,0x11,0x11,0x11,0x11,0x11,0x92,0xA2,0xB2,0x11,0x11},
162 /* 3 */ {0x03,0x13,0x23,0x33,0x43,0x53,0x63,0x11,0x11,0x93,0xA3,0xB3,0xC3,0xD3},
163 /* 4 */ {0x04,0x14,0x24,0x34,0x44,0x54,0x64,0x11,0x11,0x94,0xA4,0xB4,0xC4,0xD4},
164 /* 5 */ {0x00,0x15,0x25,0x35,0x45,0x55,0x65,0x11,0x11,0x95,0xA5,0xB5,0xC5,0xD5},
165 /* 6 */ {0x06,0x16,0x26,0x36,0x46,0x56,0x66,0x11,0x11,0x96,0xA6,0xB6,0xC6,0xD6},
166 /* 7 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11},
167 /* 8 */ {0x08,0x11,0x28,0x38,0x48,0x58,0x68,0x11,0x11,0x98,0xA8,0xB8,0xC8,0xD8},
168 /* 9 */ {0x09,0x19,0x29,0x39,0x49,0x59,0x69,0x11,0x11,0x99,0xA9,0xB9,0xC9,0xD9}
175 static inline void xoutb(unsigned char val
, unsigned short port
)
177 pr_debug("outb(val=%.2x,port=%.4x)\n", val
, port
);
180 static inline unsigned char xinb(unsigned short port
)
185 pr_debug("%.2x=inb(%.4x)\n", val
, port
);
191 static inline unsigned char invert_revert(unsigned char ch
)
196 static void str_invert_revert(unsigned char *b
, int len
)
200 for (i
= 0; i
< len
; i
++)
201 b
[i
] = invert_revert(b
[i
]);
204 #define ATRLENCK(dev,pos) \
205 if (pos>=dev->atr_len || pos>=MAX_ATR) \
208 static unsigned int calc_baudv(unsigned char fidi
)
210 unsigned int wcrcf
, wbrcf
, fi_rfu
, di_rfu
;
216 switch ((fidi
>> 4) & 0x0F) {
265 switch (fidi
& 0x0F) {
301 return (wcrcf
/ wbrcf
);
304 static unsigned short io_read_num_rec_bytes(unsigned int iobase
,
312 tmp
= inb(REG_NUM_BYTES(iobase
)) |
313 (inb(REG_FLAGS0(iobase
)) & 4 ? 0x100 : 0);
319 static int parse_atr(struct cm4000_dev
*dev
)
321 unsigned char any_t1
, any_t0
;
322 unsigned char ch
, ifno
;
325 DEBUGP(3, dev
, "-> parse_atr: dev->atr_len = %i\n", dev
->atr_len
);
327 if (dev
->atr_len
< 3) {
328 DEBUGP(5, dev
, "parse_atr: atr_len < 3\n");
332 if (dev
->atr
[0] == 0x3f)
333 set_bit(IS_INVREV
, &dev
->flags
);
335 clear_bit(IS_INVREV
, &dev
->flags
);
339 dev
->proto
= 0; /* XXX PROTO */
340 any_t1
= any_t0
= done
= 0;
341 dev
->ta1
= 0x11; /* defaults to 9600 baud */
343 if (ifno
== 1 && (ch
& 0x10)) {
344 /* read first interface byte and TA1 is present */
345 dev
->ta1
= dev
->atr
[2];
346 DEBUGP(5, dev
, "Card says FiDi is 0x%.2x\n", dev
->ta1
);
348 } else if ((ifno
== 2) && (ch
& 0x10)) { /* TA(2) */
353 DEBUGP(5, dev
, "Yi=%.2x\n", ch
& 0xf0);
354 ix
+= ((ch
& 0x10) >> 4) /* no of int.face chars */
357 + ((ch
& 0x80) >> 7);
358 /* ATRLENCK(dev,ix); */
359 if (ch
& 0x80) { /* TDi */
363 DEBUGP(5, dev
, "card is capable of T=1\n");
366 DEBUGP(5, dev
, "card is capable of T=0\n");
372 DEBUGP(5, dev
, "ix=%d noHist=%d any_t1=%d\n",
373 ix
, dev
->atr
[1] & 15, any_t1
);
374 if (ix
+ 1 + (dev
->atr
[1] & 0x0f) + any_t1
!= dev
->atr_len
) {
375 DEBUGP(5, dev
, "length error\n");
379 set_bit(IS_ANY_T0
, &dev
->flags
);
381 if (any_t1
) { /* compute csum */
384 for (i
= 1; i
< dev
->atr_len
; i
++)
385 dev
->atr_csum
^= dev
->atr
[i
];
387 set_bit(IS_BAD_CSUM
, &dev
->flags
);
388 DEBUGP(5, dev
, "bad checksum\n");
393 dev
->proto
= 1; /* XXX PROTO */
394 set_bit(IS_ANY_T1
, &dev
->flags
);
406 static struct card_fixup card_fixups
[] = {
408 .atr
= { 0x3b, 0xb3, 0x11, 0x00, 0x00, 0x41, 0x01 },
413 .atr
= {0x3b, 0x76, 0x13, 0x00, 0x00, 0x80, 0x62, 0x07,
420 static void set_cardparameter(struct cm4000_dev
*dev
)
423 unsigned int iobase
= dev
->p_dev
->resource
[0]->start
;
424 u_int8_t stopbits
= 0x02; /* ISO default */
426 DEBUGP(3, dev
, "-> set_cardparameter\n");
428 dev
->flags1
= dev
->flags1
| (((dev
->baudv
- 1) & 0x0100) >> 8);
429 xoutb(dev
->flags1
, REG_FLAGS1(iobase
));
430 DEBUGP(5, dev
, "flags1 = 0x%02x\n", dev
->flags1
);
433 xoutb((unsigned char)((dev
->baudv
- 1) & 0xFF), REG_BAUDRATE(iobase
));
435 DEBUGP(5, dev
, "baudv = %i -> write 0x%02x\n", dev
->baudv
,
436 ((dev
->baudv
- 1) & 0xFF));
439 for (i
= 0; i
< ARRAY_SIZE(card_fixups
); i
++) {
440 if (!memcmp(dev
->atr
, card_fixups
[i
].atr
,
441 card_fixups
[i
].atr_len
))
442 stopbits
= card_fixups
[i
].stopbits
;
444 xoutb(stopbits
, REG_STOPBITS(iobase
));
446 DEBUGP(3, dev
, "<- set_cardparameter\n");
449 static int set_protocol(struct cm4000_dev
*dev
, struct ptsreq
*ptsreq
)
452 unsigned long tmp
, i
;
453 unsigned short num_bytes_read
;
454 unsigned char pts_reply
[4];
456 unsigned int iobase
= dev
->p_dev
->resource
[0]->start
;
460 DEBUGP(3, dev
, "-> set_protocol\n");
461 DEBUGP(5, dev
, "ptsreq->Protocol = 0x%.8x, ptsreq->Flags=0x%.8x, "
462 "ptsreq->pts1=0x%.2x, ptsreq->pts2=0x%.2x, "
463 "ptsreq->pts3=0x%.2x\n", (unsigned int)ptsreq
->protocol
,
464 (unsigned int)ptsreq
->flags
, ptsreq
->pts1
, ptsreq
->pts2
,
467 /* Fill PTS structure */
470 tmp
= ptsreq
->protocol
;
471 while ((tmp
= (tmp
>> 1)) > 0)
473 dev
->proto
= dev
->pts
[1]; /* Set new protocol */
474 dev
->pts
[1] = (0x01 << 4) | (dev
->pts
[1]);
476 /* Correct Fi/Di according to CM4000 Fi/Di table */
477 DEBUGP(5, dev
, "Ta(1) from ATR is 0x%.2x\n", dev
->ta1
);
478 /* set Fi/Di according to ATR TA(1) */
479 dev
->pts
[2] = fi_di_table
[dev
->ta1
& 0x0F][(dev
->ta1
>> 4) & 0x0F];
481 /* Calculate PCK character */
482 dev
->pts
[3] = dev
->pts
[0] ^ dev
->pts
[1] ^ dev
->pts
[2];
484 DEBUGP(5, dev
, "pts0=%.2x, pts1=%.2x, pts2=%.2x, pts3=%.2x\n",
485 dev
->pts
[0], dev
->pts
[1], dev
->pts
[2], dev
->pts
[3]);
487 /* check card convention */
488 if (test_bit(IS_INVREV
, &dev
->flags
))
489 str_invert_revert(dev
->pts
, 4);
492 xoutb(0x80, REG_FLAGS0(iobase
));
494 /* Enable access to the message buffer */
495 DEBUGP(5, dev
, "Enable access to the messages buffer\n");
496 dev
->flags1
= 0x20 /* T_Active */
497 | (test_bit(IS_INVREV
, &dev
->flags
) ? 0x02 : 0x00) /* inv parity */
498 | ((dev
->baudv
>> 8) & 0x01); /* MSB-baud */
499 xoutb(dev
->flags1
, REG_FLAGS1(iobase
));
501 DEBUGP(5, dev
, "Enable message buffer -> flags1 = 0x%.2x\n",
504 /* write challenge to the buffer */
505 DEBUGP(5, dev
, "Write challenge to buffer: ");
506 for (i
= 0; i
< 4; i
++) {
507 xoutb(i
, REG_BUF_ADDR(iobase
));
508 xoutb(dev
->pts
[i
], REG_BUF_DATA(iobase
)); /* buf data */
510 pr_debug("0x%.2x ", dev
->pts
[i
]);
517 /* set number of bytes to write */
518 DEBUGP(5, dev
, "Set number of bytes to write\n");
519 xoutb(0x04, REG_NUM_SEND(iobase
));
521 /* Trigger CARDMAN CONTROLLER */
522 xoutb(0x50, REG_FLAGS0(iobase
));
524 /* Monitor progress */
525 /* wait for xmit done */
526 DEBUGP(5, dev
, "Waiting for NumRecBytes getting valid\n");
528 for (i
= 0; i
< 100; i
++) {
529 if (inb(REG_FLAGS0(iobase
)) & 0x08) {
530 DEBUGP(5, dev
, "NumRecBytes is valid\n");
536 DEBUGP(5, dev
, "Timeout waiting for NumRecBytes getting "
539 goto exit_setprotocol
;
542 DEBUGP(5, dev
, "Reading NumRecBytes\n");
543 for (i
= 0; i
< 100; i
++) {
544 io_read_num_rec_bytes(iobase
, &num_bytes_read
);
545 if (num_bytes_read
>= 4) {
546 DEBUGP(2, dev
, "NumRecBytes = %i\n", num_bytes_read
);
552 /* check whether it is a short PTS reply? */
553 if (num_bytes_read
== 3)
557 DEBUGP(5, dev
, "Timeout reading num_bytes_read\n");
559 goto exit_setprotocol
;
562 DEBUGP(5, dev
, "Reset the CARDMAN CONTROLLER\n");
563 xoutb(0x80, REG_FLAGS0(iobase
));
566 DEBUGP(5, dev
, "Read PPS reply\n");
567 for (i
= 0; i
< num_bytes_read
; i
++) {
568 xoutb(i
, REG_BUF_ADDR(iobase
));
569 pts_reply
[i
] = inb(REG_BUF_DATA(iobase
));
573 DEBUGP(2, dev
, "PTSreply: ");
574 for (i
= 0; i
< num_bytes_read
; i
++) {
575 pr_debug("0x%.2x ", pts_reply
[i
]);
578 #endif /* CM4000_DEBUG */
580 DEBUGP(5, dev
, "Clear Tactive in Flags1\n");
581 xoutb(0x20, REG_FLAGS1(iobase
));
583 /* Compare ptsreq and ptsreply */
584 if ((dev
->pts
[0] == pts_reply
[0]) &&
585 (dev
->pts
[1] == pts_reply
[1]) &&
586 (dev
->pts
[2] == pts_reply
[2]) && (dev
->pts
[3] == pts_reply
[3])) {
587 /* setcardparameter according to PPS */
588 dev
->baudv
= calc_baudv(dev
->pts
[2]);
589 set_cardparameter(dev
);
590 } else if ((dev
->pts
[0] == pts_reply
[0]) &&
591 ((dev
->pts
[1] & 0xef) == pts_reply
[1]) &&
592 ((pts_reply
[0] ^ pts_reply
[1]) == pts_reply
[2])) {
593 /* short PTS reply, set card parameter to default values */
594 dev
->baudv
= calc_baudv(0x11);
595 set_cardparameter(dev
);
600 DEBUGP(3, dev
, "<- set_protocol\n");
604 static int io_detect_cm4000(unsigned int iobase
, struct cm4000_dev
*dev
)
607 /* note: statemachine is assumed to be reset */
608 if (inb(REG_FLAGS0(iobase
)) & 8) {
609 clear_bit(IS_ATR_VALID
, &dev
->flags
);
610 set_bit(IS_CMM_ABSENT
, &dev
->flags
);
611 return 0; /* detect CMM = 1 -> failure */
613 /* xoutb(0x40, REG_FLAGS1(iobase)); detectCMM */
614 xoutb(dev
->flags1
| 0x40, REG_FLAGS1(iobase
));
615 if ((inb(REG_FLAGS0(iobase
)) & 8) == 0) {
616 clear_bit(IS_ATR_VALID
, &dev
->flags
);
617 set_bit(IS_CMM_ABSENT
, &dev
->flags
);
618 return 0; /* detect CMM=0 -> failure */
620 /* clear detectCMM again by restoring original flags1 */
621 xoutb(dev
->flags1
, REG_FLAGS1(iobase
));
625 static void terminate_monitor(struct cm4000_dev
*dev
)
628 /* tell the monitor to stop and wait until
631 DEBUGP(3, dev
, "-> terminate_monitor\n");
632 wait_event_interruptible(dev
->devq
,
633 test_and_set_bit(LOCK_MONITOR
,
634 (void *)&dev
->flags
));
636 /* now, LOCK_MONITOR has been set.
637 * allow a last cycle in the monitor.
638 * the monitor will indicate that it has
639 * finished by clearing this bit.
641 DEBUGP(5, dev
, "Now allow last cycle of monitor!\n");
642 while (test_bit(LOCK_MONITOR
, (void *)&dev
->flags
))
645 DEBUGP(5, dev
, "Delete timer\n");
646 del_timer_sync(&dev
->timer
);
648 dev
->monitor_running
= 0;
651 DEBUGP(3, dev
, "<- terminate_monitor\n");
655 * monitor the card every 50msec. as a side-effect, retrieve the
656 * atr once a card is inserted. another side-effect of retrieving the
657 * atr is that the card will be powered on, so there is no need to
658 * power on the card explictely from the application: the driver
659 * is already doing that for you.
662 static void monitor_card(unsigned long p
)
664 struct cm4000_dev
*dev
= (struct cm4000_dev
*) p
;
665 unsigned int iobase
= dev
->p_dev
->resource
[0]->start
;
667 struct ptsreq ptsreq
;
670 DEBUGP(7, dev
, "-> monitor_card\n");
672 /* if someone has set the lock for us: we're done! */
673 if (test_and_set_bit(LOCK_MONITOR
, &dev
->flags
)) {
674 DEBUGP(4, dev
, "About to stop monitor\n");
678 dev
->atr_csum
= dev
->atr_len_retry
= dev
->cwarn
= 0;
679 dev
->mstate
= M_FETCH_ATR
;
680 clear_bit(LOCK_MONITOR
, &dev
->flags
);
681 /* close et al. are sleeping on devq, so wake it */
682 wake_up_interruptible(&dev
->devq
);
683 DEBUGP(2, dev
, "<- monitor_card (we are done now)\n");
687 /* try to lock io: if it is already locked, just add another timer */
688 if (test_and_set_bit(LOCK_IO
, (void *)&dev
->flags
)) {
689 DEBUGP(4, dev
, "Couldn't get IO lock\n");
690 goto return_with_timer
;
693 /* is a card/a reader inserted at all ? */
694 dev
->flags0
= xinb(REG_FLAGS0(iobase
));
695 DEBUGP(7, dev
, "dev->flags0 = 0x%2x\n", dev
->flags0
);
696 DEBUGP(7, dev
, "smartcard present: %s\n",
697 dev
->flags0
& 1 ? "yes" : "no");
698 DEBUGP(7, dev
, "cardman present: %s\n",
699 dev
->flags0
== 0xff ? "no" : "yes");
701 if ((dev
->flags0
& 1) == 0 /* no smartcard inserted */
702 || dev
->flags0
== 0xff) { /* no cardman inserted */
706 dev
->atr_csum
= dev
->atr_len_retry
= dev
->cwarn
= 0;
707 dev
->mstate
= M_FETCH_ATR
;
709 dev
->flags
&= 0x000000ff; /* only keep IO and MONITOR locks */
711 if (dev
->flags0
== 0xff) {
712 DEBUGP(4, dev
, "set IS_CMM_ABSENT bit\n");
713 set_bit(IS_CMM_ABSENT
, &dev
->flags
);
714 } else if (test_bit(IS_CMM_ABSENT
, &dev
->flags
)) {
715 DEBUGP(4, dev
, "clear IS_CMM_ABSENT bit "
716 "(card is removed)\n");
717 clear_bit(IS_CMM_ABSENT
, &dev
->flags
);
721 } else if ((dev
->flags0
& 1) && test_bit(IS_CMM_ABSENT
, &dev
->flags
)) {
722 /* cardman and card present but cardman was absent before
723 * (after suspend with inserted card) */
724 DEBUGP(4, dev
, "clear IS_CMM_ABSENT bit (card is inserted)\n");
725 clear_bit(IS_CMM_ABSENT
, &dev
->flags
);
728 if (test_bit(IS_ATR_VALID
, &dev
->flags
) == 1) {
729 DEBUGP(7, dev
, "believe ATR is already valid (do nothing)\n");
733 switch (dev
->mstate
) {
734 unsigned char flags0
;
736 DEBUGP(4, dev
, "M_CARDOFF\n");
737 flags0
= inb(REG_FLAGS0(iobase
));
739 /* wait until Flags0 indicate power is off */
740 dev
->mdelay
= T_10MSEC
;
742 /* Flags0 indicate power off and no card inserted now;
743 * Reset CARDMAN CONTROLLER */
744 xoutb(0x80, REG_FLAGS0(iobase
));
746 /* prepare for fetching ATR again: after card off ATR
747 * is read again automatically */
751 dev
->atr_len_retry
= dev
->cwarn
= 0;
752 dev
->mstate
= M_FETCH_ATR
;
754 /* minimal gap between CARDOFF and read ATR is 50msec */
755 dev
->mdelay
= T_50MSEC
;
759 DEBUGP(4, dev
, "M_FETCH_ATR\n");
760 xoutb(0x80, REG_FLAGS0(iobase
));
761 DEBUGP(4, dev
, "Reset BAUDV to 9600\n");
762 dev
->baudv
= 0x173; /* 9600 */
763 xoutb(0x02, REG_STOPBITS(iobase
)); /* stopbits=2 */
764 xoutb(0x73, REG_BAUDRATE(iobase
)); /* baud value */
765 xoutb(0x21, REG_FLAGS1(iobase
)); /* T_Active=1, baud
767 /* warm start vs. power on: */
768 xoutb(dev
->flags0
& 2 ? 0x46 : 0x44, REG_FLAGS0(iobase
));
769 dev
->mdelay
= T_40MSEC
;
770 dev
->mstate
= M_TIMEOUT_WAIT
;
773 DEBUGP(4, dev
, "M_TIMEOUT_WAIT\n");
775 io_read_num_rec_bytes(iobase
, &dev
->atr_len
);
776 dev
->mdelay
= T_10MSEC
;
777 dev
->mstate
= M_READ_ATR_LEN
;
780 DEBUGP(4, dev
, "M_READ_ATR_LEN\n");
781 /* infinite loop possible, since there is no timeout */
783 #define MAX_ATR_LEN_RETRY 100
785 if (dev
->atr_len
== io_read_num_rec_bytes(iobase
, &s
)) {
786 if (dev
->atr_len_retry
++ >= MAX_ATR_LEN_RETRY
) { /* + XX msec */
787 dev
->mdelay
= T_10MSEC
;
788 dev
->mstate
= M_READ_ATR
;
792 dev
->atr_len_retry
= 0; /* set new timeout */
795 DEBUGP(4, dev
, "Current ATR_LEN = %i\n", dev
->atr_len
);
798 DEBUGP(4, dev
, "M_READ_ATR\n");
799 xoutb(0x80, REG_FLAGS0(iobase
)); /* reset SM */
800 for (i
= 0; i
< dev
->atr_len
; i
++) {
801 xoutb(i
, REG_BUF_ADDR(iobase
));
802 dev
->atr
[i
] = inb(REG_BUF_DATA(iobase
));
804 /* Deactivate T_Active flags */
805 DEBUGP(4, dev
, "Deactivate T_Active flags\n");
807 xoutb(dev
->flags1
, REG_FLAGS1(iobase
));
809 /* atr is present (which doesnt mean it's valid) */
810 set_bit(IS_ATR_PRESENT
, &dev
->flags
);
811 if (dev
->atr
[0] == 0x03)
812 str_invert_revert(dev
->atr
, dev
->atr_len
);
813 atrc
= parse_atr(dev
);
814 if (atrc
== 0) { /* atr invalid */
816 dev
->mstate
= M_BAD_CARD
;
818 dev
->mdelay
= T_50MSEC
;
819 dev
->mstate
= M_ATR_PRESENT
;
820 set_bit(IS_ATR_VALID
, &dev
->flags
);
823 if (test_bit(IS_ATR_VALID
, &dev
->flags
) == 1) {
824 DEBUGP(4, dev
, "monitor_card: ATR valid\n");
825 /* if ta1 == 0x11, no PPS necessary (default values) */
826 /* do not do PPS with multi protocol cards */
827 if ((test_bit(IS_AUTOPPS_ACT
, &dev
->flags
) == 0) &&
828 (dev
->ta1
!= 0x11) &&
829 !(test_bit(IS_ANY_T0
, &dev
->flags
) &&
830 test_bit(IS_ANY_T1
, &dev
->flags
))) {
831 DEBUGP(4, dev
, "Perform AUTOPPS\n");
832 set_bit(IS_AUTOPPS_ACT
, &dev
->flags
);
833 ptsreq
.protocol
= ptsreq
.protocol
=
834 (0x01 << dev
->proto
);
839 if (set_protocol(dev
, &ptsreq
) == 0) {
840 DEBUGP(4, dev
, "AUTOPPS ret SUCC\n");
841 clear_bit(IS_AUTOPPS_ACT
, &dev
->flags
);
842 wake_up_interruptible(&dev
->atrq
);
844 DEBUGP(4, dev
, "AUTOPPS failed: "
845 "repower using defaults\n");
846 /* prepare for repowering */
847 clear_bit(IS_ATR_PRESENT
, &dev
->flags
);
848 clear_bit(IS_ATR_VALID
, &dev
->flags
);
852 dev
->atr_len_retry
= dev
->cwarn
= 0;
853 dev
->mstate
= M_FETCH_ATR
;
855 dev
->mdelay
= T_50MSEC
;
858 /* for cards which use slightly different
859 * params (extra guard time) */
860 set_cardparameter(dev
);
861 if (test_bit(IS_AUTOPPS_ACT
, &dev
->flags
) == 1)
862 DEBUGP(4, dev
, "AUTOPPS already active "
863 "2nd try:use default values\n");
864 if (dev
->ta1
== 0x11)
865 DEBUGP(4, dev
, "No AUTOPPS necessary "
867 if (test_bit(IS_ANY_T0
, &dev
->flags
)
868 && test_bit(IS_ANY_T1
, &dev
->flags
))
869 DEBUGP(4, dev
, "Do NOT perform AUTOPPS "
870 "with multiprotocol cards\n");
871 clear_bit(IS_AUTOPPS_ACT
, &dev
->flags
);
872 wake_up_interruptible(&dev
->atrq
);
875 DEBUGP(4, dev
, "ATR invalid\n");
876 wake_up_interruptible(&dev
->atrq
);
880 DEBUGP(4, dev
, "M_BAD_CARD\n");
881 /* slow down warning, but prompt immediately after insertion */
882 if (dev
->cwarn
== 0 || dev
->cwarn
== 10) {
883 set_bit(IS_BAD_CARD
, &dev
->flags
);
884 dev_warn(&dev
->p_dev
->dev
, MODULE_NAME
": ");
885 if (test_bit(IS_BAD_CSUM
, &dev
->flags
)) {
886 DEBUGP(4, dev
, "ATR checksum (0x%.2x, should "
887 "be zero) failed\n", dev
->atr_csum
);
890 else if (test_bit(IS_BAD_LENGTH
, &dev
->flags
)) {
891 DEBUGP(4, dev
, "ATR length error\n");
893 DEBUGP(4, dev
, "card damaged or wrong way "
898 wake_up_interruptible(&dev
->atrq
); /* wake open */
901 dev
->mdelay
= T_100MSEC
;
902 dev
->mstate
= M_FETCH_ATR
;
905 DEBUGP(7, dev
, "Unknown action\n");
910 DEBUGP(7, dev
, "release_io\n");
911 clear_bit(LOCK_IO
, &dev
->flags
);
912 wake_up_interruptible(&dev
->ioq
); /* whoever needs IO */
915 DEBUGP(7, dev
, "<- monitor_card (returns with timer)\n");
916 mod_timer(&dev
->timer
, jiffies
+ dev
->mdelay
);
917 clear_bit(LOCK_MONITOR
, &dev
->flags
);
920 /* Interface to userland (file_operations) */
922 static ssize_t
cmm_read(struct file
*filp
, __user
char *buf
, size_t count
,
925 struct cm4000_dev
*dev
= filp
->private_data
;
926 unsigned int iobase
= dev
->p_dev
->resource
[0]->start
;
930 DEBUGP(2, dev
, "-> cmm_read(%s,%d)\n", current
->comm
, current
->pid
);
932 if (count
== 0) /* according to manpage */
935 if (!pcmcia_dev_present(dev
->p_dev
) || /* device removed */
936 test_bit(IS_CMM_ABSENT
, &dev
->flags
))
939 if (test_bit(IS_BAD_CSUM
, &dev
->flags
))
942 /* also see the note about this in cmm_write */
943 if (wait_event_interruptible
945 ((filp
->f_flags
& O_NONBLOCK
)
946 || (test_bit(IS_ATR_PRESENT
, (void *)&dev
->flags
) != 0)))) {
947 if (filp
->f_flags
& O_NONBLOCK
)
952 if (test_bit(IS_ATR_VALID
, &dev
->flags
) == 0)
955 /* this one implements blocking IO */
956 if (wait_event_interruptible
958 ((filp
->f_flags
& O_NONBLOCK
) || (dev
->rpos
< dev
->rlen
)))) {
959 if (filp
->f_flags
& O_NONBLOCK
)
965 if (wait_event_interruptible
967 ((filp
->f_flags
& O_NONBLOCK
)
968 || (test_and_set_bit(LOCK_IO
, (void *)&dev
->flags
) == 0)))) {
969 if (filp
->f_flags
& O_NONBLOCK
)
975 dev
->flags0
= inb(REG_FLAGS0(iobase
));
976 if ((dev
->flags0
& 1) == 0 /* no smartcard inserted */
977 || dev
->flags0
== 0xff) { /* no cardman inserted */
978 clear_bit(IS_ATR_VALID
, &dev
->flags
);
979 if (dev
->flags0
& 1) {
980 set_bit(IS_CMM_ABSENT
, &dev
->flags
);
987 DEBUGP(4, dev
, "begin read answer\n");
988 j
= min(count
, (size_t)(dev
->rlen
- dev
->rpos
));
992 DEBUGP(4, dev
, "read1 j=%d\n", j
);
993 for (i
= 0; i
< j
; i
++) {
994 xoutb(k
++, REG_BUF_ADDR(iobase
));
995 dev
->rbuf
[i
] = xinb(REG_BUF_DATA(iobase
));
997 j
= min(count
, (size_t)(dev
->rlen
- dev
->rpos
));
999 DEBUGP(4, dev
, "read2 j=%d\n", j
);
1000 dev
->flags1
|= 0x10; /* MSB buf addr set */
1001 xoutb(dev
->flags1
, REG_FLAGS1(iobase
));
1002 for (; i
< j
; i
++) {
1003 xoutb(k
++, REG_BUF_ADDR(iobase
));
1004 dev
->rbuf
[i
] = xinb(REG_BUF_DATA(iobase
));
1008 if (dev
->proto
== 0 && count
> dev
->rlen
- dev
->rpos
&& i
) {
1009 DEBUGP(4, dev
, "T=0 and count > buffer\n");
1010 dev
->rbuf
[i
] = dev
->rbuf
[i
- 1];
1011 dev
->rbuf
[i
- 1] = dev
->procbyte
;
1016 dev
->rpos
= dev
->rlen
+ 1;
1018 /* Clear T1Active */
1019 DEBUGP(4, dev
, "Clear T1Active\n");
1020 dev
->flags1
&= 0xdf;
1021 xoutb(dev
->flags1
, REG_FLAGS1(iobase
));
1023 xoutb(0, REG_FLAGS1(iobase
)); /* clear detectCMM */
1024 /* last check before exit */
1025 if (!io_detect_cm4000(iobase
, dev
)) {
1030 if (test_bit(IS_INVREV
, &dev
->flags
) && count
> 0)
1031 str_invert_revert(dev
->rbuf
, count
);
1033 if (copy_to_user(buf
, dev
->rbuf
, count
))
1037 clear_bit(LOCK_IO
, &dev
->flags
);
1038 wake_up_interruptible(&dev
->ioq
);
1040 DEBUGP(2, dev
, "<- cmm_read returns: rc = %Zi\n",
1041 (rc
< 0 ? rc
: count
));
1042 return rc
< 0 ? rc
: count
;
1045 static ssize_t
cmm_write(struct file
*filp
, const char __user
*buf
,
1046 size_t count
, loff_t
*ppos
)
1048 struct cm4000_dev
*dev
= filp
->private_data
;
1049 unsigned int iobase
= dev
->p_dev
->resource
[0]->start
;
1052 unsigned char infolen
;
1053 unsigned char sendT0
;
1054 unsigned short nsend
;
1059 DEBUGP(2, dev
, "-> cmm_write(%s,%d)\n", current
->comm
, current
->pid
);
1061 if (count
== 0) /* according to manpage */
1064 if (dev
->proto
== 0 && count
< 4) {
1065 /* T0 must have at least 4 bytes */
1066 DEBUGP(4, dev
, "T0 short write\n");
1070 nr
= count
& 0x1ff; /* max bytes to write */
1072 sendT0
= dev
->proto
? 0 : nr
> 5 ? 0x08 : 0;
1074 if (!pcmcia_dev_present(dev
->p_dev
) || /* device removed */
1075 test_bit(IS_CMM_ABSENT
, &dev
->flags
))
1078 if (test_bit(IS_BAD_CSUM
, &dev
->flags
)) {
1079 DEBUGP(4, dev
, "bad csum\n");
1084 * wait for atr to become valid.
1085 * note: it is important to lock this code. if we dont, the monitor
1086 * could be run between test_bit and the call to sleep on the
1087 * atr-queue. if *then* the monitor detects atr valid, it will wake up
1088 * any process on the atr-queue, *but* since we have been interrupted,
1089 * we do not yet sleep on this queue. this would result in a missed
1090 * wake_up and the calling process would sleep forever (until
1091 * interrupted). also, do *not* restore_flags before sleep_on, because
1092 * this could result in the same situation!
1094 if (wait_event_interruptible
1096 ((filp
->f_flags
& O_NONBLOCK
)
1097 || (test_bit(IS_ATR_PRESENT
, (void *)&dev
->flags
) != 0)))) {
1098 if (filp
->f_flags
& O_NONBLOCK
)
1100 return -ERESTARTSYS
;
1103 if (test_bit(IS_ATR_VALID
, &dev
->flags
) == 0) { /* invalid atr */
1104 DEBUGP(4, dev
, "invalid ATR\n");
1109 if (wait_event_interruptible
1111 ((filp
->f_flags
& O_NONBLOCK
)
1112 || (test_and_set_bit(LOCK_IO
, (void *)&dev
->flags
) == 0)))) {
1113 if (filp
->f_flags
& O_NONBLOCK
)
1115 return -ERESTARTSYS
;
1118 if (copy_from_user(dev
->sbuf
, buf
, ((count
> 512) ? 512 : count
)))
1122 dev
->flags0
= inb(REG_FLAGS0(iobase
));
1123 if ((dev
->flags0
& 1) == 0 /* no smartcard inserted */
1124 || dev
->flags0
== 0xff) { /* no cardman inserted */
1125 clear_bit(IS_ATR_VALID
, &dev
->flags
);
1126 if (dev
->flags0
& 1) {
1127 set_bit(IS_CMM_ABSENT
, &dev
->flags
);
1130 DEBUGP(4, dev
, "IO error\n");
1136 xoutb(0x80, REG_FLAGS0(iobase
)); /* reset SM */
1138 if (!io_detect_cm4000(iobase
, dev
)) {
1143 /* reflect T=0 send/read mode in flags1 */
1144 dev
->flags1
|= (sendT0
);
1146 set_cardparameter(dev
);
1148 /* dummy read, reset flag procedure received */
1149 tmp
= inb(REG_FLAGS1(iobase
));
1151 dev
->flags1
= 0x20 /* T_Active */
1153 | (test_bit(IS_INVREV
, &dev
->flags
) ? 2 : 0)/* inverse parity */
1154 | (((dev
->baudv
- 1) & 0x0100) >> 8); /* MSB-Baud */
1155 DEBUGP(1, dev
, "set dev->flags1 = 0x%.2x\n", dev
->flags1
);
1156 xoutb(dev
->flags1
, REG_FLAGS1(iobase
));
1159 DEBUGP(4, dev
, "Xmit data\n");
1160 for (i
= 0; i
< nr
; i
++) {
1162 dev
->flags1
= 0x20 /* T_Active */
1163 | (sendT0
) /* SendT0 */
1164 /* inverse parity: */
1165 | (test_bit(IS_INVREV
, &dev
->flags
) ? 2 : 0)
1166 | (((dev
->baudv
- 1) & 0x0100) >> 8) /* MSB-Baud */
1167 | 0x10; /* set address high */
1168 DEBUGP(4, dev
, "dev->flags = 0x%.2x - set address "
1169 "high\n", dev
->flags1
);
1170 xoutb(dev
->flags1
, REG_FLAGS1(iobase
));
1172 if (test_bit(IS_INVREV
, &dev
->flags
)) {
1173 DEBUGP(4, dev
, "Apply inverse convention for 0x%.2x "
1174 "-> 0x%.2x\n", (unsigned char)dev
->sbuf
[i
],
1175 invert_revert(dev
->sbuf
[i
]));
1176 xoutb(i
, REG_BUF_ADDR(iobase
));
1177 xoutb(invert_revert(dev
->sbuf
[i
]),
1178 REG_BUF_DATA(iobase
));
1180 xoutb(i
, REG_BUF_ADDR(iobase
));
1181 xoutb(dev
->sbuf
[i
], REG_BUF_DATA(iobase
));
1184 DEBUGP(4, dev
, "Xmit done\n");
1186 if (dev
->proto
== 0) {
1187 /* T=0 proto: 0 byte reply */
1189 DEBUGP(4, dev
, "T=0 assumes 0 byte reply\n");
1190 xoutb(i
, REG_BUF_ADDR(iobase
));
1191 if (test_bit(IS_INVREV
, &dev
->flags
))
1192 xoutb(0xff, REG_BUF_DATA(iobase
));
1194 xoutb(0x00, REG_BUF_DATA(iobase
));
1204 nsend
= 5 + (unsigned char)dev
->sbuf
[4];
1205 if (dev
->sbuf
[4] == 0)
1212 /* T0: output procedure byte */
1213 if (test_bit(IS_INVREV
, &dev
->flags
)) {
1214 DEBUGP(4, dev
, "T=0 set Procedure byte (inverse-reverse) "
1215 "0x%.2x\n", invert_revert(dev
->sbuf
[1]));
1216 xoutb(invert_revert(dev
->sbuf
[1]), REG_NUM_BYTES(iobase
));
1218 DEBUGP(4, dev
, "T=0 set Procedure byte 0x%.2x\n", dev
->sbuf
[1]);
1219 xoutb(dev
->sbuf
[1], REG_NUM_BYTES(iobase
));
1222 DEBUGP(1, dev
, "set NumSendBytes = 0x%.2x\n",
1223 (unsigned char)(nsend
& 0xff));
1224 xoutb((unsigned char)(nsend
& 0xff), REG_NUM_SEND(iobase
));
1226 DEBUGP(1, dev
, "Trigger CARDMAN CONTROLLER (0x%.2x)\n",
1227 0x40 /* SM_Active */
1228 | (dev
->flags0
& 2 ? 0 : 4) /* power on if needed */
1229 |(dev
->proto
? 0x10 : 0x08) /* T=1/T=0 */
1230 |(nsend
& 0x100) >> 8 /* MSB numSendBytes */ );
1231 xoutb(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 REG_FLAGS0(iobase
));
1237 /* wait for xmit done */
1238 if (dev
->proto
== 1) {
1239 DEBUGP(4, dev
, "Wait for xmit done\n");
1240 for (i
= 0; i
< 1000; i
++) {
1241 if (inb(REG_FLAGS0(iobase
)) & 0x08)
1243 msleep_interruptible(10);
1246 DEBUGP(4, dev
, "timeout waiting for xmit done\n");
1252 /* T=1: wait for infoLen */
1256 /* wait until infoLen is valid */
1257 for (i
= 0; i
< 6000; i
++) { /* max waiting time of 1 min */
1258 io_read_num_rec_bytes(iobase
, &s
);
1260 infolen
= inb(REG_FLAGS1(iobase
));
1261 DEBUGP(4, dev
, "infolen=%d\n", infolen
);
1264 msleep_interruptible(10);
1267 DEBUGP(4, dev
, "timeout waiting for infoLen\n");
1272 clear_bit(IS_PROCBYTE_PRESENT
, &dev
->flags
);
1274 /* numRecBytes | bit9 of numRecytes */
1275 io_read_num_rec_bytes(iobase
, &dev
->rlen
);
1276 for (i
= 0; i
< 600; i
++) { /* max waiting time of 2 sec */
1278 if (dev
->rlen
>= infolen
+ 4)
1281 msleep_interruptible(10);
1282 /* numRecBytes | bit9 of numRecytes */
1283 io_read_num_rec_bytes(iobase
, &s
);
1284 if (s
> dev
->rlen
) {
1285 DEBUGP(1, dev
, "NumRecBytes inc (reset timeout)\n");
1286 i
= 0; /* reset timeout */
1289 /* T=0: we are done when numRecBytes doesn't
1290 * increment any more and NoProcedureByte
1291 * is set and numRecBytes == bytes sent + 6
1292 * (header bytes + data + 1 for sw2)
1293 * except when the card replies an error
1294 * which means, no data will be sent back.
1296 else if (dev
->proto
== 0) {
1297 if ((inb(REG_BUF_ADDR(iobase
)) & 0x80)) {
1298 /* no procedure byte received since last read */
1299 DEBUGP(1, dev
, "NoProcedure byte set\n");
1302 /* procedure byte received since last read */
1303 DEBUGP(1, dev
, "NoProcedure byte unset "
1304 "(reset timeout)\n");
1305 dev
->procbyte
= inb(REG_FLAGS1(iobase
));
1306 DEBUGP(1, dev
, "Read procedure byte 0x%.2x\n",
1308 i
= 0; /* resettimeout */
1310 if (inb(REG_FLAGS0(iobase
)) & 0x08) {
1311 DEBUGP(1, dev
, "T0Done flag (read reply)\n");
1316 infolen
= inb(REG_FLAGS1(iobase
));
1319 DEBUGP(1, dev
, "timeout waiting for numRecBytes\n");
1323 if (dev
->proto
== 0) {
1324 DEBUGP(1, dev
, "Wait for T0Done bit to be set\n");
1325 for (i
= 0; i
< 1000; i
++) {
1326 if (inb(REG_FLAGS0(iobase
)) & 0x08)
1328 msleep_interruptible(10);
1331 DEBUGP(1, dev
, "timeout waiting for T0Done\n");
1336 dev
->procbyte
= inb(REG_FLAGS1(iobase
));
1337 DEBUGP(4, dev
, "Read procedure byte 0x%.2x\n",
1340 io_read_num_rec_bytes(iobase
, &dev
->rlen
);
1341 DEBUGP(4, dev
, "Read NumRecBytes = %i\n", dev
->rlen
);
1345 /* T=1: read offset=zero, T=0: read offset=after challenge */
1346 dev
->rpos
= dev
->proto
? 0 : nr
== 4 ? 5 : nr
> dev
->rlen
? 5 : nr
;
1347 DEBUGP(4, dev
, "dev->rlen = %i, dev->rpos = %i, nr = %i\n",
1348 dev
->rlen
, dev
->rpos
, nr
);
1351 DEBUGP(4, dev
, "Reset SM\n");
1352 xoutb(0x80, REG_FLAGS0(iobase
)); /* reset SM */
1355 DEBUGP(4, dev
, "Write failed but clear T_Active\n");
1356 dev
->flags1
&= 0xdf;
1357 xoutb(dev
->flags1
, REG_FLAGS1(iobase
));
1360 clear_bit(LOCK_IO
, &dev
->flags
);
1361 wake_up_interruptible(&dev
->ioq
);
1362 wake_up_interruptible(&dev
->readq
); /* tell read we have data */
1364 /* ITSEC E2: clear write buffer */
1365 memset((char *)dev
->sbuf
, 0, 512);
1367 /* return error or actually written bytes */
1368 DEBUGP(2, dev
, "<- cmm_write\n");
1369 return rc
< 0 ? rc
: nr
;
1372 static void start_monitor(struct cm4000_dev
*dev
)
1374 DEBUGP(3, dev
, "-> start_monitor\n");
1375 if (!dev
->monitor_running
) {
1376 DEBUGP(5, dev
, "create, init and add timer\n");
1377 setup_timer(&dev
->timer
, monitor_card
, (unsigned long)dev
);
1378 dev
->monitor_running
= 1;
1379 mod_timer(&dev
->timer
, jiffies
);
1381 DEBUGP(5, dev
, "monitor already running\n");
1382 DEBUGP(3, dev
, "<- start_monitor\n");
1385 static void stop_monitor(struct cm4000_dev
*dev
)
1387 DEBUGP(3, dev
, "-> stop_monitor\n");
1388 if (dev
->monitor_running
) {
1389 DEBUGP(5, dev
, "stopping monitor\n");
1390 terminate_monitor(dev
);
1391 /* reset monitor SM */
1392 clear_bit(IS_ATR_VALID
, &dev
->flags
);
1393 clear_bit(IS_ATR_PRESENT
, &dev
->flags
);
1395 DEBUGP(5, dev
, "monitor already stopped\n");
1396 DEBUGP(3, dev
, "<- stop_monitor\n");
1399 static long cmm_ioctl(struct file
*filp
, unsigned int cmd
, unsigned long arg
)
1401 struct cm4000_dev
*dev
= filp
->private_data
;
1402 unsigned int iobase
= dev
->p_dev
->resource
[0]->start
;
1403 struct inode
*inode
= filp
->f_path
.dentry
->d_inode
;
1404 struct pcmcia_device
*link
;
1407 void __user
*argp
= (void __user
*)arg
;
1409 char *ioctl_names
[CM_IOC_MAXNR
+ 1] = {
1410 [_IOC_NR(CM_IOCGSTATUS
)] "CM_IOCGSTATUS",
1411 [_IOC_NR(CM_IOCGATR
)] "CM_IOCGATR",
1412 [_IOC_NR(CM_IOCARDOFF
)] "CM_IOCARDOFF",
1413 [_IOC_NR(CM_IOCSPTS
)] "CM_IOCSPTS",
1414 [_IOC_NR(CM_IOSDBGLVL
)] "CM4000_DBGLVL",
1416 DEBUGP(3, dev
, "cmm_ioctl(device=%d.%d) %s\n", imajor(inode
),
1417 iminor(inode
), ioctl_names
[_IOC_NR(cmd
)]);
1422 link
= dev_table
[iminor(inode
)];
1423 if (!pcmcia_dev_present(link
)) {
1424 DEBUGP(4, dev
, "DEV_OK false\n");
1428 if (test_bit(IS_CMM_ABSENT
, &dev
->flags
)) {
1429 DEBUGP(4, dev
, "CMM_ABSENT flag set\n");
1434 if (_IOC_TYPE(cmd
) != CM_IOC_MAGIC
) {
1435 DEBUGP(4, dev
, "ioctype mismatch\n");
1438 if (_IOC_NR(cmd
) > CM_IOC_MAXNR
) {
1439 DEBUGP(4, dev
, "iocnr mismatch\n");
1442 size
= _IOC_SIZE(cmd
);
1444 DEBUGP(4, dev
, "iocdir=%.4x iocr=%.4x iocw=%.4x iocsize=%d cmd=%.4x\n",
1445 _IOC_DIR(cmd
), _IOC_READ
, _IOC_WRITE
, size
, cmd
);
1447 if (_IOC_DIR(cmd
) & _IOC_READ
) {
1448 if (!access_ok(VERIFY_WRITE
, argp
, size
))
1451 if (_IOC_DIR(cmd
) & _IOC_WRITE
) {
1452 if (!access_ok(VERIFY_READ
, argp
, size
))
1459 DEBUGP(4, dev
, " ... in CM_IOCGSTATUS\n");
1463 /* clear other bits, but leave inserted & powered as
1465 status
= dev
->flags0
& 3;
1466 if (test_bit(IS_ATR_PRESENT
, &dev
->flags
))
1467 status
|= CM_ATR_PRESENT
;
1468 if (test_bit(IS_ATR_VALID
, &dev
->flags
))
1469 status
|= CM_ATR_VALID
;
1470 if (test_bit(IS_CMM_ABSENT
, &dev
->flags
))
1471 status
|= CM_NO_READER
;
1472 if (test_bit(IS_BAD_CARD
, &dev
->flags
))
1473 status
|= CM_BAD_CARD
;
1474 if (copy_to_user(argp
, &status
, sizeof(int)))
1479 DEBUGP(4, dev
, "... in CM_IOCGATR\n");
1481 struct atreq __user
*atreq
= argp
;
1483 /* allow nonblocking io and being interrupted */
1484 if (wait_event_interruptible
1486 ((filp
->f_flags
& O_NONBLOCK
)
1487 || (test_bit(IS_ATR_PRESENT
, (void *)&dev
->flags
)
1489 if (filp
->f_flags
& O_NONBLOCK
)
1497 if (test_bit(IS_ATR_VALID
, &dev
->flags
) == 0) {
1499 if (copy_to_user(&(atreq
->atr_len
), &tmp
,
1503 if (copy_to_user(atreq
->atr
, dev
->atr
,
1508 if (copy_to_user(&(atreq
->atr_len
), &tmp
, sizeof(int)))
1517 DEBUGP(4, dev
, "... in CM_IOCARDOFF\n");
1518 if (dev
->flags0
& 0x01) {
1519 DEBUGP(4, dev
, " Card inserted\n");
1521 DEBUGP(2, dev
, " No card inserted\n");
1523 if (dev
->flags0
& 0x02) {
1524 DEBUGP(4, dev
, " Card powered\n");
1526 DEBUGP(2, dev
, " Card not powered\n");
1530 /* is a card inserted and powered? */
1531 if ((dev
->flags0
& 0x01) && (dev
->flags0
& 0x02)) {
1534 if (wait_event_interruptible
1536 ((filp
->f_flags
& O_NONBLOCK
)
1537 || (test_and_set_bit(LOCK_IO
, (void *)&dev
->flags
)
1539 if (filp
->f_flags
& O_NONBLOCK
)
1545 /* Set Flags0 = 0x42 */
1546 DEBUGP(4, dev
, "Set Flags0=0x42 \n");
1547 xoutb(0x42, REG_FLAGS0(iobase
));
1548 clear_bit(IS_ATR_PRESENT
, &dev
->flags
);
1549 clear_bit(IS_ATR_VALID
, &dev
->flags
);
1550 dev
->mstate
= M_CARDOFF
;
1551 clear_bit(LOCK_IO
, &dev
->flags
);
1552 if (wait_event_interruptible
1554 ((filp
->f_flags
& O_NONBLOCK
)
1555 || (test_bit(IS_ATR_VALID
, (void *)&dev
->flags
) !=
1557 if (filp
->f_flags
& O_NONBLOCK
)
1565 clear_bit(LOCK_IO
, &dev
->flags
);
1566 wake_up_interruptible(&dev
->ioq
);
1572 struct ptsreq krnptsreq
;
1574 if (copy_from_user(&krnptsreq
, argp
,
1575 sizeof(struct ptsreq
))) {
1581 DEBUGP(4, dev
, "... in CM_IOCSPTS\n");
1582 /* wait for ATR to get valid */
1583 if (wait_event_interruptible
1585 ((filp
->f_flags
& O_NONBLOCK
)
1586 || (test_bit(IS_ATR_PRESENT
, (void *)&dev
->flags
)
1588 if (filp
->f_flags
& O_NONBLOCK
)
1595 if (wait_event_interruptible
1597 ((filp
->f_flags
& O_NONBLOCK
)
1598 || (test_and_set_bit(LOCK_IO
, (void *)&dev
->flags
)
1600 if (filp
->f_flags
& O_NONBLOCK
)
1607 if ((rc
= set_protocol(dev
, &krnptsreq
)) != 0) {
1608 /* auto power_on again */
1609 dev
->mstate
= M_FETCH_ATR
;
1610 clear_bit(IS_ATR_VALID
, &dev
->flags
);
1613 clear_bit(LOCK_IO
, &dev
->flags
);
1614 wake_up_interruptible(&dev
->ioq
);
1624 DEBUGP(4, dev
, "... in default (unknown IOCTL code)\n");
1632 static int cmm_open(struct inode
*inode
, struct file
*filp
)
1634 struct cm4000_dev
*dev
;
1635 struct pcmcia_device
*link
;
1636 int minor
= iminor(inode
);
1639 if (minor
>= CM4000_MAX_DEV
)
1643 link
= dev_table
[minor
];
1644 if (link
== NULL
|| !pcmcia_dev_present(link
)) {
1655 filp
->private_data
= dev
;
1657 DEBUGP(2, dev
, "-> cmm_open(device=%d.%d process=%s,%d)\n",
1658 imajor(inode
), minor
, current
->comm
, current
->pid
);
1660 /* init device variables, they may be "polluted" after close
1661 * or, the device may never have been closed (i.e. open failed)
1666 /* opening will always block since the
1667 * monitor will be started by open, which
1668 * means we have to wait for ATR becoming
1669 * vaild = block until valid (or card
1672 if (filp
->f_flags
& O_NONBLOCK
) {
1677 dev
->mdelay
= T_50MSEC
;
1679 /* start monitoring the cardstatus */
1682 link
->open
= 1; /* only one open per device */
1684 DEBUGP(2, dev
, "<- cmm_open\n");
1685 ret
= nonseekable_open(inode
, filp
);
1691 static int cmm_close(struct inode
*inode
, struct file
*filp
)
1693 struct cm4000_dev
*dev
;
1694 struct pcmcia_device
*link
;
1695 int minor
= iminor(inode
);
1697 if (minor
>= CM4000_MAX_DEV
)
1700 link
= dev_table
[minor
];
1706 DEBUGP(2, dev
, "-> cmm_close(maj/min=%d.%d)\n",
1707 imajor(inode
), minor
);
1713 link
->open
= 0; /* only one open per device */
1714 wake_up(&dev
->devq
); /* socket removed? */
1716 DEBUGP(2, dev
, "cmm_close\n");
1720 static void cmm_cm4000_release(struct pcmcia_device
* link
)
1722 struct cm4000_dev
*dev
= link
->priv
;
1724 /* dont terminate the monitor, rather rely on
1725 * close doing that for us.
1727 DEBUGP(3, dev
, "-> cmm_cm4000_release\n");
1728 while (link
->open
) {
1729 printk(KERN_INFO MODULE_NAME
": delaying release until "
1730 "process has terminated\n");
1731 /* note: don't interrupt us:
1732 * close the applications which own
1733 * the devices _first_ !
1735 wait_event(dev
->devq
, (link
->open
== 0));
1737 /* dev->devq=NULL; this cannot be zeroed earlier */
1738 DEBUGP(3, dev
, "<- cmm_cm4000_release\n");
1742 /*==== Interface to PCMCIA Layer =======================================*/
1744 static int cm4000_config_check(struct pcmcia_device
*p_dev
, void *priv_data
)
1746 return pcmcia_request_io(p_dev
);
1749 static int cm4000_config(struct pcmcia_device
* link
, int devno
)
1751 struct cm4000_dev
*dev
;
1753 link
->config_flags
|= CONF_AUTO_SET_IO
;
1755 /* read the config-tuples */
1756 if (pcmcia_loop_config(link
, cm4000_config_check
, NULL
))
1759 if (pcmcia_enable_device(link
))
1767 cm4000_release(link
);
1771 static int cm4000_suspend(struct pcmcia_device
*link
)
1773 struct cm4000_dev
*dev
;
1781 static int cm4000_resume(struct pcmcia_device
*link
)
1783 struct cm4000_dev
*dev
;
1792 static void cm4000_release(struct pcmcia_device
*link
)
1794 cmm_cm4000_release(link
); /* delay release until device closed */
1795 pcmcia_disable_device(link
);
1798 static int cm4000_probe(struct pcmcia_device
*link
)
1800 struct cm4000_dev
*dev
;
1803 for (i
= 0; i
< CM4000_MAX_DEV
; i
++)
1804 if (dev_table
[i
] == NULL
)
1807 if (i
== CM4000_MAX_DEV
) {
1808 printk(KERN_NOTICE MODULE_NAME
": all devices in use\n");
1812 /* create a new cm4000_cs device */
1813 dev
= kzalloc(sizeof(struct cm4000_dev
), GFP_KERNEL
);
1819 dev_table
[i
] = link
;
1821 init_waitqueue_head(&dev
->devq
);
1822 init_waitqueue_head(&dev
->ioq
);
1823 init_waitqueue_head(&dev
->atrq
);
1824 init_waitqueue_head(&dev
->readq
);
1826 ret
= cm4000_config(link
, i
);
1828 dev_table
[i
] = NULL
;
1833 device_create(cmm_class
, NULL
, MKDEV(major
, i
), NULL
, "cmm%d", i
);
1838 static void cm4000_detach(struct pcmcia_device
*link
)
1840 struct cm4000_dev
*dev
= link
->priv
;
1844 for (devno
= 0; devno
< CM4000_MAX_DEV
; devno
++)
1845 if (dev_table
[devno
] == link
)
1847 if (devno
== CM4000_MAX_DEV
)
1852 cm4000_release(link
);
1854 dev_table
[devno
] = NULL
;
1857 device_destroy(cmm_class
, MKDEV(major
, devno
));
1862 static const struct file_operations cm4000_fops
= {
1863 .owner
= THIS_MODULE
,
1866 .unlocked_ioctl
= cmm_ioctl
,
1868 .release
= cmm_close
,
1871 static struct pcmcia_device_id cm4000_ids
[] = {
1872 PCMCIA_DEVICE_MANF_CARD(0x0223, 0x0002),
1873 PCMCIA_DEVICE_PROD_ID12("CardMan", "4000", 0x2FB368CA, 0xA2BD8C39),
1876 MODULE_DEVICE_TABLE(pcmcia
, cm4000_ids
);
1878 static struct pcmcia_driver cm4000_driver
= {
1879 .owner
= THIS_MODULE
,
1881 .name
= "cm4000_cs",
1883 .probe
= cm4000_probe
,
1884 .remove
= cm4000_detach
,
1885 .suspend
= cm4000_suspend
,
1886 .resume
= cm4000_resume
,
1887 .id_table
= cm4000_ids
,
1890 static int __init
cmm_init(void)
1894 printk(KERN_INFO
"%s\n", version
);
1896 cmm_class
= class_create(THIS_MODULE
, "cardman_4000");
1897 if (IS_ERR(cmm_class
))
1898 return PTR_ERR(cmm_class
);
1900 major
= register_chrdev(0, DEVICE_NAME
, &cm4000_fops
);
1902 printk(KERN_WARNING MODULE_NAME
1903 ": could not get major number\n");
1904 class_destroy(cmm_class
);
1908 rc
= pcmcia_register_driver(&cm4000_driver
);
1910 unregister_chrdev(major
, DEVICE_NAME
);
1911 class_destroy(cmm_class
);
1918 static void __exit
cmm_exit(void)
1920 printk(KERN_INFO MODULE_NAME
": unloading\n");
1921 pcmcia_unregister_driver(&cm4000_driver
);
1922 unregister_chrdev(major
, DEVICE_NAME
);
1923 class_destroy(cmm_class
);
1926 module_init(cmm_init
);
1927 module_exit(cmm_exit
);
1928 MODULE_LICENSE("Dual BSD/GPL");