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 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()
22 * All rights reserved. Licensed under dual BSD/GPL license.
25 /* #define PCMCIA_DEBUG 6 */
27 #include <linux/kernel.h>
28 #include <linux/module.h>
29 #include <linux/slab.h>
30 #include <linux/init.h>
32 #include <linux/delay.h>
33 #include <asm/uaccess.h>
36 #include <pcmcia/cs_types.h>
37 #include <pcmcia/cs.h>
38 #include <pcmcia/cistpl.h>
39 #include <pcmcia/cisreg.h>
40 #include <pcmcia/ciscode.h>
41 #include <pcmcia/ds.h>
43 #include <linux/cm4000_cs.h>
45 /* #define ATR_CSUM */
48 #define reader_to_dev(x) (&handle_to_dev(x->link.handle))
49 static int pc_debug
= PCMCIA_DEBUG
;
50 module_param(pc_debug
, int, 0600);
51 #define DEBUGP(n, rdr, x, args...) do { \
52 if (pc_debug >= (n)) \
53 dev_printk(KERN_DEBUG, reader_to_dev(rdr), "%s:" x, \
54 __FUNCTION__ , ## args); \
57 #define DEBUGP(n, rdr, x, args...)
59 static char *version
= "cm4000_cs.c v2.4.0gm5 - 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_detach(dev_link_t
*link
);
70 static void cm4000_release(dev_link_t
*link
);
72 static int major
; /* major number we get from the kernel */
74 /* note: the first state has to have number 0 always */
77 #define M_TIMEOUT_WAIT 1
78 #define M_READ_ATR_LEN 2
80 #define M_ATR_PRESENT 4
85 #define LOCK_MONITOR 1
87 #define IS_AUTOPPS_ACT 6
88 #define IS_PROCBYTE_PRESENT 7
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
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)
109 dev_link_t link
; /* pcmcia link */
110 dev_node_t node
; /* OS node (major,minor) */
112 unsigned char atr
[MAX_ATR
];
113 unsigned char rbuf
[512];
114 unsigned char sbuf
[512];
116 wait_queue_head_t devq
; /* when removing cardman must not be
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 */
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 */
137 unsigned int baudv
; /* baud value for speed */
139 unsigned char proto
; /* T=0, T=1, ... */
140 unsigned long flags
; /* lock+flags (MONITOR,IO,ATR) * for concurrent
143 unsigned char pts
[4];
145 struct timer_list timer
; /* used to keep monitor running */
149 #define ZERO_DEV(dev) \
150 memset(&dev->atr_csum,0, \
151 sizeof(struct cm4000_dev) - \
152 /*link*/ sizeof(dev_link_t) - \
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))
159 static dev_info_t dev_info
= MODULE_NAME
;
160 static dev_link_t
*dev_table
[CM4000_MAX_DEV
];
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 */
165 static unsigned char fi_di_table
[10][14] = {
166 /*FI 00 01 02 03 04 05 06 07 08 09 10 11 12 13 */
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}
184 static inline void xoutb(unsigned char val
, unsigned short port
)
187 printk(KERN_DEBUG
"outb(val=%.2x,port=%.4x)\n", val
, port
);
190 static inline unsigned char xinb(unsigned short port
)
196 printk(KERN_DEBUG
"%.2x=inb(%.4x)\n", val
, port
);
219 static 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
226 static void str_invert_revert(unsigned char *b
, int len
)
230 for (i
= 0; i
< len
; i
++)
231 b
[i
] = (irtab
[b
[i
] & 0x0f] << 4) | irtab
[b
[i
] >> 4];
234 static unsigned char invert_revert(unsigned char ch
)
236 return (irtab
[ch
& 0x0f] << 4) | irtab
[ch
>> 4];
239 #define ATRLENCK(dev,pos) \
240 if (pos>=dev->atr_len || pos>=MAX_ATR) \
243 static unsigned int calc_baudv(unsigned char fidi
)
245 unsigned int wcrcf
, wbrcf
, fi_rfu
, di_rfu
;
251 switch ((fidi
>> 4) & 0x0F) {
300 switch (fidi
& 0x0F) {
336 return (wcrcf
/ wbrcf
);
339 static unsigned short io_read_num_rec_bytes(ioaddr_t iobase
, unsigned short *s
)
346 tmp
= inb(REG_NUM_BYTES(iobase
)) |
347 (inb(REG_FLAGS0(iobase
)) & 4 ? 0x100 : 0);
353 static int parse_atr(struct cm4000_dev
*dev
)
355 unsigned char any_t1
, any_t0
;
356 unsigned char ch
, ifno
;
359 DEBUGP(3, dev
, "-> parse_atr: dev->atr_len = %i\n", dev
->atr_len
);
361 if (dev
->atr_len
< 3) {
362 DEBUGP(5, dev
, "parse_atr: atr_len < 3\n");
366 if (dev
->atr
[0] == 0x3f)
367 set_bit(IS_INVREV
, &dev
->flags
);
369 clear_bit(IS_INVREV
, &dev
->flags
);
373 dev
->proto
= 0; /* XXX PROTO */
374 any_t1
= any_t0
= done
= 0;
375 dev
->ta1
= 0x11; /* defaults to 9600 baud */
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
);
382 } else if ((ifno
== 2) && (ch
& 0x10)) { /* TA(2) */
387 DEBUGP(5, dev
, "Yi=%.2x\n", ch
& 0xf0);
388 ix
+= ((ch
& 0x10) >> 4) /* no of int.face chars */
391 + ((ch
& 0x80) >> 7);
392 /* ATRLENCK(dev,ix); */
393 if (ch
& 0x80) { /* TDi */
397 DEBUGP(5, dev
, "card is capable of T=1\n");
400 DEBUGP(5, dev
, "card is capable of T=0\n");
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");
413 set_bit(IS_ANY_T0
, &dev
->flags
);
415 if (any_t1
) { /* compute csum */
418 for (i
= 1; i
< dev
->atr_len
; i
++)
419 dev
->atr_csum
^= dev
->atr
[i
];
421 set_bit(IS_BAD_CSUM
, &dev
->flags
);
422 DEBUGP(5, dev
, "bad checksum\n");
427 dev
->proto
= 1; /* XXX PROTO */
428 set_bit(IS_ANY_T1
, &dev
->flags
);
440 static struct card_fixup card_fixups
[] = {
442 .atr
= { 0x3b, 0xb3, 0x11, 0x00, 0x00, 0x41, 0x01 },
447 .atr
= {0x3b, 0x76, 0x13, 0x00, 0x00, 0x80, 0x62, 0x07,
454 static void set_cardparameter(struct cm4000_dev
*dev
)
457 ioaddr_t iobase
= dev
->link
.io
.BasePort1
;
458 u_int8_t stopbits
= 0x02; /* ISO default */
460 DEBUGP(3, dev
, "-> set_cardparameter\n");
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
);
467 xoutb((unsigned char)((dev
->baudv
- 1) & 0xFF), REG_BAUDRATE(iobase
));
469 DEBUGP(5, dev
, "baudv = %i -> write 0x%02x\n", dev
->baudv
,
470 ((dev
->baudv
- 1) & 0xFF));
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
;
478 xoutb(stopbits
, REG_STOPBITS(iobase
));
480 DEBUGP(3, dev
, "<- set_cardparameter\n");
483 static int set_protocol(struct cm4000_dev
*dev
, struct ptsreq
*ptsreq
)
486 unsigned long tmp
, i
;
487 unsigned short num_bytes_read
;
488 unsigned char pts_reply
[4];
490 ioaddr_t iobase
= dev
->link
.io
.BasePort1
;
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
,
501 /* Fill PTS structure */
504 tmp
= ptsreq
->protocol
;
505 while ((tmp
= (tmp
>> 1)) > 0)
507 dev
->proto
= dev
->pts
[1]; /* Set new protocol */
508 dev
->pts
[1] = (0x01 << 4) | (dev
->pts
[1]);
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];
515 /* Calculate PCK character */
516 dev
->pts
[3] = dev
->pts
[0] ^ dev
->pts
[1] ^ dev
->pts
[2];
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]);
521 /* check card convention */
522 if (test_bit(IS_INVREV
, &dev
->flags
))
523 str_invert_revert(dev
->pts
, 4);
526 xoutb(0x80, REG_FLAGS0(iobase
));
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
));
535 DEBUGP(5, dev
, "Enable message buffer -> flags1 = 0x%.2x\n",
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 */
545 printk("0x%.2x ", dev
->pts
[i
]);
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
));
557 /* Trigger CARDMAN CONTROLLER */
558 xoutb(0x50, REG_FLAGS0(iobase
));
560 /* Monitor progress */
561 /* wait for xmit done */
562 DEBUGP(5, dev
, "Waiting for NumRecBytes getting valid\n");
564 for (i
= 0; i
< 100; i
++) {
565 if (inb(REG_FLAGS0(iobase
)) & 0x08) {
566 DEBUGP(5, dev
, "NumRecBytes is valid\n");
572 DEBUGP(5, dev
, "Timeout waiting for NumRecBytes getting "
575 goto exit_setprotocol
;
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
);
588 /* check whether it is a short PTS reply? */
589 if (num_bytes_read
== 3)
593 DEBUGP(5, dev
, "Timeout reading num_bytes_read\n");
595 goto exit_setprotocol
;
598 DEBUGP(5, dev
, "Reset the CARDMAN CONTROLLER\n");
599 xoutb(0x80, REG_FLAGS0(iobase
));
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
));
609 DEBUGP(2, dev
, "PTSreply: ");
610 for (i
= 0; i
< num_bytes_read
; i
++) {
612 printk("0x%.2x ", pts_reply
[i
]);
615 #endif /* PCMCIA_DEBUG */
617 DEBUGP(5, dev
, "Clear Tactive in Flags1\n");
618 xoutb(0x20, REG_FLAGS1(iobase
));
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
);
637 DEBUGP(3, dev
, "<- set_protocol\n");
641 static int io_detect_cm4000(ioaddr_t iobase
, struct cm4000_dev
*dev
)
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 */
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 */
657 /* clear detectCMM again by restoring original flags1 */
658 xoutb(dev
->flags1
, REG_FLAGS1(iobase
));
662 static void terminate_monitor(struct cm4000_dev
*dev
)
665 /* tell the monitor to stop and wait until
668 DEBUGP(3, dev
, "-> terminate_monitor\n");
669 wait_event_interruptible(dev
->devq
,
670 test_and_set_bit(LOCK_MONITOR
,
671 (void *)&dev
->flags
));
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.
678 DEBUGP(5, dev
, "Now allow last cycle of monitor!\n");
679 while (test_bit(LOCK_MONITOR
, (void *)&dev
->flags
))
682 DEBUGP(5, dev
, "Delete timer\n");
683 del_timer_sync(&dev
->timer
);
685 dev
->monitor_running
= 0;
688 DEBUGP(3, dev
, "<- terminate_monitor\n");
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.
699 static void monitor_card(unsigned long p
)
701 struct cm4000_dev
*dev
= (struct cm4000_dev
*) p
;
702 ioaddr_t iobase
= dev
->link
.io
.BasePort1
;
704 struct ptsreq ptsreq
;
707 DEBUGP(7, dev
, "-> monitor_card\n");
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");
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");
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
;
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");
738 if ((dev
->flags0
& 1) == 0 /* no smartcard inserted */
739 || dev
->flags0
== 0xff) { /* no cardman inserted */
743 dev
->atr_csum
= dev
->atr_len_retry
= dev
->cwarn
= 0;
744 dev
->mstate
= M_FETCH_ATR
;
746 dev
->flags
&= 0x000000ff; /* only keep IO and MONITOR locks */
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
);
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
);
765 if (test_bit(IS_ATR_VALID
, &dev
->flags
) == 1) {
766 DEBUGP(7, dev
, "believe ATR is already valid (do nothing)\n");
770 switch (dev
->mstate
) {
771 unsigned char flags0
;
773 DEBUGP(4, dev
, "M_CARDOFF\n");
774 flags0
= inb(REG_FLAGS0(iobase
));
776 /* wait until Flags0 indicate power is off */
777 dev
->mdelay
= T_10MSEC
;
779 /* Flags0 indicate power off and no card inserted now;
780 * Reset CARDMAN CONTROLLER */
781 xoutb(0x80, REG_FLAGS0(iobase
));
783 /* prepare for fetching ATR again: after card off ATR
784 * is read again automatically */
788 dev
->atr_len_retry
= dev
->cwarn
= 0;
789 dev
->mstate
= M_FETCH_ATR
;
791 /* minimal gap between CARDOFF and read ATR is 50msec */
792 dev
->mdelay
= T_50MSEC
;
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
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
;
810 DEBUGP(4, dev
, "M_TIMEOUT_WAIT\n");
812 io_read_num_rec_bytes(iobase
, &dev
->atr_len
);
813 dev
->mdelay
= T_10MSEC
;
814 dev
->mstate
= M_READ_ATR_LEN
;
817 DEBUGP(4, dev
, "M_READ_ATR_LEN\n");
818 /* infinite loop possible, since there is no timeout */
820 #define MAX_ATR_LEN_RETRY 100
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
;
829 dev
->atr_len_retry
= 0; /* set new timeout */
832 DEBUGP(4, dev
, "Current ATR_LEN = %i\n", dev
->atr_len
);
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
));
841 /* Deactivate T_Active flags */
842 DEBUGP(4, dev
, "Deactivate T_Active flags\n");
844 xoutb(dev
->flags1
, REG_FLAGS1(iobase
));
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 */
853 dev
->mstate
= M_BAD_CARD
;
855 dev
->mdelay
= T_50MSEC
;
856 dev
->mstate
= M_ATR_PRESENT
;
857 set_bit(IS_ATR_VALID
, &dev
->flags
);
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
);
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
);
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
);
889 dev
->atr_len_retry
= dev
->cwarn
= 0;
890 dev
->mstate
= M_FETCH_ATR
;
892 dev
->mdelay
= T_50MSEC
;
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 "
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
);
912 DEBUGP(4, dev
, "ATR invalid\n");
913 wake_up_interruptible(&dev
->atrq
);
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: ",
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
);
928 else if (test_bit(IS_BAD_LENGTH
, &dev
->flags
)) {
929 DEBUGP(4, dev
, "ATR length error\n");
931 DEBUGP(4, dev
, "card damaged or wrong way "
936 wake_up_interruptible(&dev
->atrq
); /* wake open */
939 dev
->mdelay
= T_100MSEC
;
940 dev
->mstate
= M_FETCH_ATR
;
943 DEBUGP(7, dev
, "Unknown action\n");
948 DEBUGP(7, dev
, "release_io\n");
949 clear_bit(LOCK_IO
, &dev
->flags
);
950 wake_up_interruptible(&dev
->ioq
); /* whoever needs IO */
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
);
959 /* Interface to userland (file_operations) */
961 static ssize_t
cmm_read(struct file
*filp
, __user
char *buf
, size_t count
,
964 struct cm4000_dev
*dev
= filp
->private_data
;
965 ioaddr_t iobase
= dev
->link
.io
.BasePort1
;
969 DEBUGP(2, dev
, "-> cmm_read(%s,%d)\n", current
->comm
, current
->pid
);
971 if (count
== 0) /* according to manpage */
974 if ((dev
->link
.state
& DEV_PRESENT
) == 0 || /* socket removed */
975 test_bit(IS_CMM_ABSENT
, &dev
->flags
))
978 if (test_bit(IS_BAD_CSUM
, &dev
->flags
))
981 /* also see the note about this in cmm_write */
982 if (wait_event_interruptible
984 ((filp
->f_flags
& O_NONBLOCK
)
985 || (test_bit(IS_ATR_PRESENT
, (void *)&dev
->flags
) != 0)))) {
986 if (filp
->f_flags
& O_NONBLOCK
)
991 if (test_bit(IS_ATR_VALID
, &dev
->flags
) == 0)
994 /* this one implements blocking IO */
995 if (wait_event_interruptible
997 ((filp
->f_flags
& O_NONBLOCK
) || (dev
->rpos
< dev
->rlen
)))) {
998 if (filp
->f_flags
& O_NONBLOCK
)
1000 return -ERESTARTSYS
;
1004 if (wait_event_interruptible
1006 ((filp
->f_flags
& O_NONBLOCK
)
1007 || (test_and_set_bit(LOCK_IO
, (void *)&dev
->flags
) == 0)))) {
1008 if (filp
->f_flags
& O_NONBLOCK
)
1010 return -ERESTARTSYS
;
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
);
1026 DEBUGP(4, dev
, "begin read answer\n");
1027 j
= min(count
, (size_t)(dev
->rlen
- dev
->rpos
));
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
));
1036 j
= min(count
, (size_t)(dev
->rlen
- dev
->rpos
));
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
));
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
;
1055 dev
->rpos
= dev
->rlen
+ 1;
1057 /* Clear T1Active */
1058 DEBUGP(4, dev
, "Clear T1Active\n");
1059 dev
->flags1
&= 0xdf;
1060 xoutb(dev
->flags1
, REG_FLAGS1(iobase
));
1062 xoutb(0, REG_FLAGS1(iobase
)); /* clear detectCMM */
1063 /* last check before exit */
1064 if (!io_detect_cm4000(iobase
, dev
))
1067 if (test_bit(IS_INVREV
, &dev
->flags
) && count
> 0)
1068 str_invert_revert(dev
->rbuf
, count
);
1070 if (copy_to_user(buf
, dev
->rbuf
, count
))
1074 clear_bit(LOCK_IO
, &dev
->flags
);
1075 wake_up_interruptible(&dev
->ioq
);
1077 DEBUGP(2, dev
, "<- cmm_read returns: rc = %Zi\n",
1078 (rc
< 0 ? rc
: count
));
1079 return rc
< 0 ? rc
: count
;
1082 static ssize_t
cmm_write(struct file
*filp
, const char __user
*buf
,
1083 size_t count
, loff_t
*ppos
)
1085 struct cm4000_dev
*dev
= (struct cm4000_dev
*) filp
->private_data
;
1086 ioaddr_t iobase
= dev
->link
.io
.BasePort1
;
1089 unsigned char infolen
;
1090 unsigned char sendT0
;
1091 unsigned short nsend
;
1096 DEBUGP(2, dev
, "-> cmm_write(%s,%d)\n", current
->comm
, current
->pid
);
1098 if (count
== 0) /* according to manpage */
1101 if (dev
->proto
== 0 && count
< 4) {
1102 /* T0 must have at least 4 bytes */
1103 DEBUGP(4, dev
, "T0 short write\n");
1107 nr
= count
& 0x1ff; /* max bytes to write */
1109 sendT0
= dev
->proto
? 0 : nr
> 5 ? 0x08 : 0;
1111 if ((dev
->link
.state
& DEV_PRESENT
) == 0 || /* socket removed */
1112 test_bit(IS_CMM_ABSENT
, &dev
->flags
))
1115 if (test_bit(IS_BAD_CSUM
, &dev
->flags
)) {
1116 DEBUGP(4, dev
, "bad csum\n");
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!
1131 if (wait_event_interruptible
1133 ((filp
->f_flags
& O_NONBLOCK
)
1134 || (test_bit(IS_ATR_PRESENT
, (void *)&dev
->flags
) != 0)))) {
1135 if (filp
->f_flags
& O_NONBLOCK
)
1137 return -ERESTARTSYS
;
1140 if (test_bit(IS_ATR_VALID
, &dev
->flags
) == 0) { /* invalid atr */
1141 DEBUGP(4, dev
, "invalid ATR\n");
1146 if (wait_event_interruptible
1148 ((filp
->f_flags
& O_NONBLOCK
)
1149 || (test_and_set_bit(LOCK_IO
, (void *)&dev
->flags
) == 0)))) {
1150 if (filp
->f_flags
& O_NONBLOCK
)
1152 return -ERESTARTSYS
;
1155 if (copy_from_user(dev
->sbuf
, buf
, ((count
> 512) ? 512 : count
)))
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
);
1167 DEBUGP(4, dev
, "IO error\n");
1173 xoutb(0x80, REG_FLAGS0(iobase
)); /* reset SM */
1175 if (!io_detect_cm4000(iobase
, dev
)) {
1180 /* reflect T=0 send/read mode in flags1 */
1181 dev
->flags1
|= (sendT0
);
1183 set_cardparameter(dev
);
1185 /* dummy read, reset flag procedure received */
1186 tmp
= inb(REG_FLAGS1(iobase
));
1188 dev
->flags1
= 0x20 /* T_Active */
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
));
1196 DEBUGP(4, dev
, "Xmit data\n");
1197 for (i
= 0; i
< nr
; i
++) {
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
));
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
));
1217 xoutb(i
, REG_BUF_ADDR(iobase
));
1218 xoutb(dev
->sbuf
[i
], REG_BUF_DATA(iobase
));
1221 DEBUGP(4, dev
, "Xmit done\n");
1223 if (dev
->proto
== 0) {
1224 /* T=0 proto: 0 byte reply */
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
));
1231 xoutb(0x00, REG_BUF_DATA(iobase
));
1241 nsend
= 5 + (unsigned char)dev
->sbuf
[4];
1242 if (dev
->sbuf
[4] == 0)
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
));
1255 DEBUGP(4, dev
, "T=0 set Procedure byte 0x%.2x\n", dev
->sbuf
[1]);
1256 xoutb(dev
->sbuf
[1], REG_NUM_BYTES(iobase
));
1259 DEBUGP(1, dev
, "set NumSendBytes = 0x%.2x\n",
1260 (unsigned char)(nsend
& 0xff));
1261 xoutb((unsigned char)(nsend
& 0xff), REG_NUM_SEND(iobase
));
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
));
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)
1280 msleep_interruptible(10);
1283 DEBUGP(4, dev
, "timeout waiting for xmit done\n");
1289 /* T=1: wait for infoLen */
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
);
1297 infolen
= inb(REG_FLAGS1(iobase
));
1298 DEBUGP(4, dev
, "infolen=%d\n", infolen
);
1301 msleep_interruptible(10);
1304 DEBUGP(4, dev
, "timeout waiting for infoLen\n");
1309 clear_bit(IS_PROCBYTE_PRESENT
, &dev
->flags
);
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 */
1315 if (dev
->rlen
>= infolen
+ 4)
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 */
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.
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");
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",
1345 i
= 0; /* resettimeout */
1347 if (inb(REG_FLAGS0(iobase
)) & 0x08) {
1348 DEBUGP(1, dev
, "T0Done flag (read reply)\n");
1353 infolen
= inb(REG_FLAGS1(iobase
));
1356 DEBUGP(1, dev
, "timeout waiting for numRecBytes\n");
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)
1365 msleep_interruptible(10);
1368 DEBUGP(1, dev
, "timeout waiting for T0Done\n");
1373 dev
->procbyte
= inb(REG_FLAGS1(iobase
));
1374 DEBUGP(4, dev
, "Read procedure byte 0x%.2x\n",
1377 io_read_num_rec_bytes(iobase
, &dev
->rlen
);
1378 DEBUGP(4, dev
, "Read NumRecBytes = %i\n", dev
->rlen
);
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
);
1388 DEBUGP(4, dev
, "Reset SM\n");
1389 xoutb(0x80, REG_FLAGS0(iobase
)); /* reset SM */
1392 DEBUGP(4, dev
, "Write failed but clear T_Active\n");
1393 dev
->flags1
&= 0xdf;
1394 xoutb(dev
->flags1
, REG_FLAGS1(iobase
));
1397 clear_bit(LOCK_IO
, &dev
->flags
);
1398 wake_up_interruptible(&dev
->ioq
);
1399 wake_up_interruptible(&dev
->readq
); /* tell read we have data */
1401 /* ITSEC E2: clear write buffer */
1402 memset((char *)dev
->sbuf
, 0, 512);
1404 /* return error or actually written bytes */
1405 DEBUGP(2, dev
, "<- cmm_write\n");
1406 return rc
< 0 ? rc
: nr
;
1409 static void start_monitor(struct cm4000_dev
*dev
)
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
);
1421 DEBUGP(5, dev
, "monitor already running\n");
1422 DEBUGP(3, dev
, "<- start_monitor\n");
1425 static void stop_monitor(struct cm4000_dev
*dev
)
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
);
1435 DEBUGP(5, dev
, "monitor already stopped\n");
1436 DEBUGP(3, dev
, "<- stop_monitor\n");
1439 static int cmm_ioctl(struct inode
*inode
, struct file
*filp
, unsigned int cmd
,
1442 struct cm4000_dev
*dev
= filp
->private_data
;
1443 ioaddr_t iobase
= dev
->link
.io
.BasePort1
;
1448 char *ioctl_names
[CM_IOC_MAXNR
+ 1] = {
1449 [_IOC_NR(CM_IOCGSTATUS
)] "CM_IOCGSTATUS",
1450 [_IOC_NR(CM_IOCGATR
)] "CM_IOCGATR",
1451 [_IOC_NR(CM_IOCARDOFF
)] "CM_IOCARDOFF",
1452 [_IOC_NR(CM_IOCSPTS
)] "CM_IOCSPTS",
1453 [_IOC_NR(CM_IOSDBGLVL
)] "CM4000_DBGLVL",
1456 DEBUGP(3, dev
, "cmm_ioctl(device=%d.%d) %s\n", imajor(inode
),
1457 iminor(inode
), ioctl_names
[_IOC_NR(cmd
)]);
1459 link
= dev_table
[iminor(inode
)];
1460 if (!(DEV_OK(link
))) {
1461 DEBUGP(4, dev
, "DEV_OK false\n");
1465 if (test_bit(IS_CMM_ABSENT
, &dev
->flags
)) {
1466 DEBUGP(4, dev
, "CMM_ABSENT flag set\n");
1470 if (_IOC_TYPE(cmd
) != CM_IOC_MAGIC
) {
1471 DEBUGP(4, dev
, "ioctype mismatch\n");
1474 if (_IOC_NR(cmd
) > CM_IOC_MAXNR
) {
1475 DEBUGP(4, dev
, "iocnr mismatch\n");
1478 size
= _IOC_SIZE(cmd
);
1480 DEBUGP(4, dev
, "iocdir=%.4x iocr=%.4x iocw=%.4x iocsize=%d cmd=%.4x\n",
1481 _IOC_DIR(cmd
), _IOC_READ
, _IOC_WRITE
, size
, cmd
);
1483 if (_IOC_DIR(cmd
) & _IOC_READ
) {
1484 if (!access_ok(VERIFY_WRITE
, (void *)arg
, size
))
1487 if (_IOC_DIR(cmd
) & _IOC_WRITE
) {
1488 if (!access_ok(VERIFY_READ
, (void *)arg
, size
))
1494 DEBUGP(4, dev
, " ... in CM_IOCGSTATUS\n");
1498 /* clear other bits, but leave inserted & powered as
1500 status
= dev
->flags0
& 3;
1501 if (test_bit(IS_ATR_PRESENT
, &dev
->flags
))
1502 status
|= CM_ATR_PRESENT
;
1503 if (test_bit(IS_ATR_VALID
, &dev
->flags
))
1504 status
|= CM_ATR_VALID
;
1505 if (test_bit(IS_CMM_ABSENT
, &dev
->flags
))
1506 status
|= CM_NO_READER
;
1507 if (test_bit(IS_BAD_CARD
, &dev
->flags
))
1508 status
|= CM_BAD_CARD
;
1509 if (copy_to_user((int *)arg
, &status
, sizeof(int)))
1514 DEBUGP(4, dev
, "... in CM_IOCGATR\n");
1516 struct atreq
*atreq
= (struct atreq
*) arg
;
1518 /* allow nonblocking io and being interrupted */
1519 if (wait_event_interruptible
1521 ((filp
->f_flags
& O_NONBLOCK
)
1522 || (test_bit(IS_ATR_PRESENT
, (void *)&dev
->flags
)
1524 if (filp
->f_flags
& O_NONBLOCK
)
1526 return -ERESTARTSYS
;
1529 if (test_bit(IS_ATR_VALID
, &dev
->flags
) == 0) {
1531 if (copy_to_user(&(atreq
->atr_len
), &tmp
,
1535 if (copy_to_user(atreq
->atr
, dev
->atr
,
1540 if (copy_to_user(&(atreq
->atr_len
), &tmp
, sizeof(int)))
1548 DEBUGP(4, dev
, "... in CM_IOCARDOFF\n");
1549 if (dev
->flags0
& 0x01) {
1550 DEBUGP(4, dev
, " Card inserted\n");
1552 DEBUGP(2, dev
, " No card inserted\n");
1554 if (dev
->flags0
& 0x02) {
1555 DEBUGP(4, dev
, " Card powered\n");
1557 DEBUGP(2, dev
, " Card not powered\n");
1561 /* is a card inserted and powered? */
1562 if ((dev
->flags0
& 0x01) && (dev
->flags0
& 0x02)) {
1565 if (wait_event_interruptible
1567 ((filp
->f_flags
& O_NONBLOCK
)
1568 || (test_and_set_bit(LOCK_IO
, (void *)&dev
->flags
)
1570 if (filp
->f_flags
& O_NONBLOCK
)
1572 return -ERESTARTSYS
;
1574 /* Set Flags0 = 0x42 */
1575 DEBUGP(4, dev
, "Set Flags0=0x42 \n");
1576 xoutb(0x42, REG_FLAGS0(iobase
));
1577 clear_bit(IS_ATR_PRESENT
, &dev
->flags
);
1578 clear_bit(IS_ATR_VALID
, &dev
->flags
);
1579 dev
->mstate
= M_CARDOFF
;
1580 clear_bit(LOCK_IO
, &dev
->flags
);
1581 if (wait_event_interruptible
1583 ((filp
->f_flags
& O_NONBLOCK
)
1584 || (test_bit(IS_ATR_VALID
, (void *)&dev
->flags
) !=
1586 if (filp
->f_flags
& O_NONBLOCK
)
1588 return -ERESTARTSYS
;
1592 clear_bit(LOCK_IO
, &dev
->flags
);
1593 wake_up_interruptible(&dev
->ioq
);
1598 struct ptsreq krnptsreq
;
1600 if (copy_from_user(&krnptsreq
, (struct ptsreq
*) arg
,
1601 sizeof(struct ptsreq
)))
1605 DEBUGP(4, dev
, "... in CM_IOCSPTS\n");
1606 /* wait for ATR to get valid */
1607 if (wait_event_interruptible
1609 ((filp
->f_flags
& O_NONBLOCK
)
1610 || (test_bit(IS_ATR_PRESENT
, (void *)&dev
->flags
)
1612 if (filp
->f_flags
& O_NONBLOCK
)
1614 return -ERESTARTSYS
;
1617 if (wait_event_interruptible
1619 ((filp
->f_flags
& O_NONBLOCK
)
1620 || (test_and_set_bit(LOCK_IO
, (void *)&dev
->flags
)
1622 if (filp
->f_flags
& O_NONBLOCK
)
1624 return -ERESTARTSYS
;
1627 if ((rc
= set_protocol(dev
, &krnptsreq
)) != 0) {
1628 /* auto power_on again */
1629 dev
->mstate
= M_FETCH_ATR
;
1630 clear_bit(IS_ATR_VALID
, &dev
->flags
);
1633 clear_bit(LOCK_IO
, &dev
->flags
);
1634 wake_up_interruptible(&dev
->ioq
);
1639 case CM_IOSDBGLVL
: /* set debug log level */
1641 int old_pc_debug
= 0;
1643 old_pc_debug
= pc_debug
;
1644 if (copy_from_user(&pc_debug
, (int *)arg
, sizeof(int)))
1647 if (old_pc_debug
!= pc_debug
)
1648 DEBUGP(0, dev
, "Changed debug log level "
1649 "to %i\n", pc_debug
);
1654 DEBUGP(4, dev
, "... in default (unknown IOCTL code)\n");
1659 static int cmm_open(struct inode
*inode
, struct file
*filp
)
1661 struct cm4000_dev
*dev
;
1663 int rc
, minor
= iminor(inode
);
1665 if (minor
>= CM4000_MAX_DEV
)
1668 link
= dev_table
[minor
];
1669 if (link
== NULL
|| !(DEV_OK(link
)))
1676 filp
->private_data
= dev
;
1678 DEBUGP(2, dev
, "-> cmm_open(device=%d.%d process=%s,%d)\n",
1679 imajor(inode
), minor
, current
->comm
, current
->pid
);
1681 /* init device variables, they may be "polluted" after close
1682 * or, the device may never have been closed (i.e. open failed)
1687 /* opening will always block since the
1688 * monitor will be started by open, which
1689 * means we have to wait for ATR becoming
1690 * vaild = block until valid (or card
1693 if (filp
->f_flags
& O_NONBLOCK
)
1696 dev
->mdelay
= T_50MSEC
;
1698 /* start monitoring the cardstatus */
1701 link
->open
= 1; /* only one open per device */
1704 DEBUGP(2, dev
, "<- cmm_open\n");
1705 return nonseekable_open(inode
, filp
);
1708 static int cmm_close(struct inode
*inode
, struct file
*filp
)
1710 struct cm4000_dev
*dev
;
1712 int minor
= iminor(inode
);
1714 if (minor
>= CM4000_MAX_DEV
)
1717 link
= dev_table
[minor
];
1723 DEBUGP(2, dev
, "-> cmm_close(maj/min=%d.%d)\n",
1724 imajor(inode
), minor
);
1730 link
->open
= 0; /* only one open per device */
1731 wake_up(&dev
->devq
); /* socket removed? */
1733 DEBUGP(2, dev
, "cmm_close\n");
1737 static void cmm_cm4000_release(dev_link_t
* link
)
1739 struct cm4000_dev
*dev
= link
->priv
;
1741 /* dont terminate the monitor, rather rely on
1742 * close doing that for us.
1744 DEBUGP(3, dev
, "-> cmm_cm4000_release\n");
1745 while (link
->open
) {
1746 printk(KERN_INFO MODULE_NAME
": delaying release until "
1747 "process has terminated\n");
1748 /* note: don't interrupt us:
1749 * close the applications which own
1750 * the devices _first_ !
1752 wait_event(dev
->devq
, (link
->open
== 0));
1754 /* dev->devq=NULL; this cannot be zeroed earlier */
1755 DEBUGP(3, dev
, "<- cmm_cm4000_release\n");
1759 /*==== Interface to PCMCIA Layer =======================================*/
1761 static void cm4000_config(dev_link_t
* link
, int devno
)
1763 client_handle_t handle
= link
->handle
;
1764 struct cm4000_dev
*dev
;
1769 int fail_fn
, fail_rc
;
1772 /* read the config-tuples */
1773 tuple
.DesiredTuple
= CISTPL_CONFIG
;
1774 tuple
.Attributes
= 0;
1775 tuple
.TupleData
= buf
;
1776 tuple
.TupleDataMax
= sizeof(buf
);
1777 tuple
.TupleOffset
= 0;
1779 if ((fail_rc
= pcmcia_get_first_tuple(handle
, &tuple
)) != CS_SUCCESS
) {
1780 fail_fn
= GetFirstTuple
;
1783 if ((fail_rc
= pcmcia_get_tuple_data(handle
, &tuple
)) != CS_SUCCESS
) {
1784 fail_fn
= GetTupleData
;
1788 pcmcia_parse_tuple(handle
, &tuple
, &parse
)) != CS_SUCCESS
) {
1789 fail_fn
= ParseTuple
;
1793 pcmcia_get_configuration_info(handle
, &conf
)) != CS_SUCCESS
) {
1794 fail_fn
= GetConfigurationInfo
;
1798 link
->state
|= DEV_CONFIG
;
1799 link
->conf
.ConfigBase
= parse
.config
.base
;
1800 link
->conf
.Present
= parse
.config
.rmask
[0];
1801 link
->conf
.Vcc
= conf
.Vcc
;
1803 link
->io
.BasePort2
= 0;
1804 link
->io
.NumPorts2
= 0;
1805 link
->io
.Attributes2
= 0;
1806 tuple
.DesiredTuple
= CISTPL_CFTABLE_ENTRY
;
1807 for (rc
= pcmcia_get_first_tuple(handle
, &tuple
);
1808 rc
== CS_SUCCESS
; rc
= pcmcia_get_next_tuple(handle
, &tuple
)) {
1810 rc
= pcmcia_get_tuple_data(handle
, &tuple
);
1811 if (rc
!= CS_SUCCESS
)
1813 rc
= pcmcia_parse_tuple(handle
, &tuple
, &parse
);
1814 if (rc
!= CS_SUCCESS
)
1817 link
->conf
.ConfigIndex
= parse
.cftable_entry
.index
;
1819 if (!parse
.cftable_entry
.io
.nwin
)
1822 /* Get the IOaddr */
1823 link
->io
.BasePort1
= parse
.cftable_entry
.io
.win
[0].base
;
1824 link
->io
.NumPorts1
= parse
.cftable_entry
.io
.win
[0].len
;
1825 link
->io
.Attributes1
= IO_DATA_PATH_WIDTH_AUTO
;
1826 if (!(parse
.cftable_entry
.io
.flags
& CISTPL_IO_8BIT
))
1827 link
->io
.Attributes1
= IO_DATA_PATH_WIDTH_16
;
1828 if (!(parse
.cftable_entry
.io
.flags
& CISTPL_IO_16BIT
))
1829 link
->io
.Attributes1
= IO_DATA_PATH_WIDTH_8
;
1830 link
->io
.IOAddrLines
= parse
.cftable_entry
.io
.flags
1831 & CISTPL_IO_LINES_MASK
;
1833 rc
= pcmcia_request_io(handle
, &link
->io
);
1834 if (rc
== CS_SUCCESS
)
1835 break; /* we are done */
1837 if (rc
!= CS_SUCCESS
)
1840 link
->conf
.IntType
= 00000002;
1843 pcmcia_request_configuration(handle
, &link
->conf
)) != CS_SUCCESS
) {
1844 fail_fn
= RequestConfiguration
;
1849 sprintf(dev
->node
.dev_name
, DEVICE_NAME
"%d", devno
);
1850 dev
->node
.major
= major
;
1851 dev
->node
.minor
= devno
;
1852 dev
->node
.next
= NULL
;
1853 link
->dev
= &dev
->node
;
1854 link
->state
&= ~DEV_CONFIG_PENDING
;
1859 cs_error(handle
, fail_fn
, fail_rc
);
1861 cm4000_release(link
);
1863 link
->state
&= ~DEV_CONFIG_PENDING
;
1866 static int cm4000_event(event_t event
, int priority
,
1867 event_callback_args_t
*args
)
1870 struct cm4000_dev
*dev
;
1873 link
= args
->client_data
;
1876 DEBUGP(3, dev
, "-> cm4000_event\n");
1877 for (devno
= 0; devno
< CM4000_MAX_DEV
; devno
++)
1878 if (dev_table
[devno
] == link
)
1881 if (devno
== CM4000_MAX_DEV
)
1882 return CS_BAD_ADAPTER
;
1885 case CS_EVENT_CARD_INSERTION
:
1886 DEBUGP(5, dev
, "CS_EVENT_CARD_INSERTION\n");
1887 link
->state
|= DEV_PRESENT
| DEV_CONFIG_PENDING
;
1888 cm4000_config(link
, devno
);
1890 case CS_EVENT_CARD_REMOVAL
:
1891 DEBUGP(5, dev
, "CS_EVENT_CARD_REMOVAL\n");
1892 link
->state
&= ~DEV_PRESENT
;
1895 case CS_EVENT_PM_SUSPEND
:
1896 DEBUGP(5, dev
, "CS_EVENT_PM_SUSPEND "
1897 "(fall-through to CS_EVENT_RESET_PHYSICAL)\n");
1898 link
->state
|= DEV_SUSPEND
;
1900 case CS_EVENT_RESET_PHYSICAL
:
1901 DEBUGP(5, dev
, "CS_EVENT_RESET_PHYSICAL\n");
1902 if (link
->state
& DEV_CONFIG
) {
1903 DEBUGP(5, dev
, "ReleaseConfiguration\n");
1904 pcmcia_release_configuration(link
->handle
);
1908 case CS_EVENT_PM_RESUME
:
1909 DEBUGP(5, dev
, "CS_EVENT_PM_RESUME "
1910 "(fall-through to CS_EVENT_CARD_RESET)\n");
1911 link
->state
&= ~DEV_SUSPEND
;
1913 case CS_EVENT_CARD_RESET
:
1914 DEBUGP(5, dev
, "CS_EVENT_CARD_RESET\n");
1915 if ((link
->state
& DEV_CONFIG
)) {
1916 DEBUGP(5, dev
, "RequestConfiguration\n");
1917 pcmcia_request_configuration(link
->handle
, &link
->conf
);
1923 DEBUGP(5, dev
, "unknown event %.2x\n", event
);
1926 DEBUGP(3, dev
, "<- cm4000_event\n");
1930 static void cm4000_release(dev_link_t
*link
)
1932 cmm_cm4000_release(link
->priv
); /* delay release until device closed */
1933 pcmcia_release_configuration(link
->handle
);
1934 pcmcia_release_io(link
->handle
, &link
->io
);
1937 static dev_link_t
*cm4000_attach(void)
1939 struct cm4000_dev
*dev
;
1941 client_reg_t client_reg
;
1944 for (i
= 0; i
< CM4000_MAX_DEV
; i
++)
1945 if (dev_table
[i
] == NULL
)
1948 if (i
== CM4000_MAX_DEV
) {
1949 printk(KERN_NOTICE MODULE_NAME
": all devices in use\n");
1953 /* create a new cm4000_cs device */
1954 dev
= kzalloc(sizeof(struct cm4000_dev
), GFP_KERNEL
);
1960 link
->conf
.IntType
= INT_MEMORY_AND_IO
;
1961 dev_table
[i
] = link
;
1963 /* register with card services */
1964 client_reg
.dev_info
= &dev_info
;
1965 client_reg
.EventMask
=
1966 CS_EVENT_CARD_INSERTION
| CS_EVENT_CARD_REMOVAL
|
1967 CS_EVENT_RESET_PHYSICAL
| CS_EVENT_CARD_RESET
|
1968 CS_EVENT_PM_SUSPEND
| CS_EVENT_PM_RESUME
;
1969 client_reg
.Version
= 0x0210;
1970 client_reg
.event_callback_args
.client_data
= link
;
1972 i
= pcmcia_register_client(&link
->handle
, &client_reg
);
1974 cs_error(link
->handle
, RegisterClient
, i
);
1975 cm4000_detach(link
);
1979 init_waitqueue_head(&dev
->devq
);
1980 init_waitqueue_head(&dev
->ioq
);
1981 init_waitqueue_head(&dev
->atrq
);
1982 init_waitqueue_head(&dev
->readq
);
1987 static void cm4000_detach_by_devno(int devno
, dev_link_t
* link
)
1989 struct cm4000_dev
*dev
= link
->priv
;
1991 DEBUGP(3, dev
, "-> detach_by_devno(devno=%d)\n", devno
);
1993 if (link
->state
& DEV_CONFIG
) {
1994 DEBUGP(5, dev
, "device still configured (try to release it)\n");
1995 cm4000_release(link
);
1999 pcmcia_deregister_client(link
->handle
);
2002 dev_table
[devno
] = NULL
;
2007 static void cm4000_detach(dev_link_t
* link
)
2012 for (i
= 0; i
< CM4000_MAX_DEV
; i
++)
2013 if (dev_table
[i
] == link
)
2016 if (i
== CM4000_MAX_DEV
)
2019 cm4000_detach_by_devno(i
, link
);
2023 static struct file_operations cm4000_fops
= {
2024 .owner
= THIS_MODULE
,
2029 .release
= cmm_close
,
2032 static struct pcmcia_device_id cm4000_ids
[] = {
2033 PCMCIA_DEVICE_MANF_CARD(0x0223, 0x0002),
2034 PCMCIA_DEVICE_PROD_ID12("CardMan", "4000", 0x2FB368CA, 0xA2BD8C39),
2037 MODULE_DEVICE_TABLE(pcmcia
, cm4000_ids
);
2039 static struct pcmcia_driver cm4000_driver
= {
2040 .owner
= THIS_MODULE
,
2042 .name
= "cm4000_cs",
2044 .attach
= cm4000_attach
,
2045 .detach
= cm4000_detach
,
2046 .event
= cm4000_event
,
2047 .id_table
= cm4000_ids
,
2050 static int __init
cmm_init(void)
2052 printk(KERN_INFO
"%s\n", version
);
2053 pcmcia_register_driver(&cm4000_driver
);
2054 major
= register_chrdev(0, DEVICE_NAME
, &cm4000_fops
);
2056 printk(KERN_WARNING MODULE_NAME
2057 ": could not get major number\n");
2064 static void __exit
cmm_exit(void)
2068 printk(KERN_INFO MODULE_NAME
": unloading\n");
2069 pcmcia_unregister_driver(&cm4000_driver
);
2070 for (i
= 0; i
< CM4000_MAX_DEV
; i
++)
2072 cm4000_detach_by_devno(i
, dev_table
[i
]);
2073 unregister_chrdev(major
, DEVICE_NAME
);
2076 module_init(cmm_init
);
2077 module_exit(cmm_exit
);
2078 MODULE_LICENSE("Dual BSD/GPL");