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authorHarald Welte <laforge@gnumonks.org>2005-11-13 19:06:29 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-13 21:14:10 -0500
commitc1986ee9bea3d880bcf0d3f1a31e055778f306c7 (patch)
tree3263955bb33dd3efa0a34aaae5f160c2598a4706 /drivers/char
parent77c44ab1d8e9da31bf927223e1579b44f772b579 (diff)
[PATCH] New Omnikey Cardman 4000 driver
Add new Omnikey Cardman 4000 smartcard reader driver Signed-off-by: Harald Welte <laforge@gnumonks.org> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/pcmcia/Kconfig11
-rw-r--r--drivers/char/pcmcia/Makefile1
-rw-r--r--drivers/char/pcmcia/cm4000_cs.c2078
3 files changed, 2090 insertions, 0 deletions
diff --git a/drivers/char/pcmcia/Kconfig b/drivers/char/pcmcia/Kconfig
index e8d41f36635d..27c1179ee527 100644
--- a/drivers/char/pcmcia/Kconfig
+++ b/drivers/char/pcmcia/Kconfig
@@ -18,6 +18,17 @@ config SYNCLINK_CS
18 The module will be called synclinkmp. If you want to do that, say M 18 The module will be called synclinkmp. If you want to do that, say M
19 here. 19 here.
20 20
21config CARDMAN_4000
22 tristate "Omnikey Cardman 4000 support"
23 depends on PCMCIA
24 help
25 Enable support for the Omnikey Cardman 4000 PCMCIA Smartcard
26 reader.
27
28 This kernel driver requires additional userspace support, either
29 by the vendor-provided PC/SC ifd_handler (http://www.omnikey.com/),
30 or via the cm4000 backend of OpenCT (http://www.opensc.com/).
31
21config CARDMAN_4040 32config CARDMAN_4040
22 tristate "Omnikey CardMan 4040 support" 33 tristate "Omnikey CardMan 4040 support"
23 depends on PCMCIA 34 depends on PCMCIA
diff --git a/drivers/char/pcmcia/Makefile b/drivers/char/pcmcia/Makefile
index 35cd766a0a17..0aae20985d57 100644
--- a/drivers/char/pcmcia/Makefile
+++ b/drivers/char/pcmcia/Makefile
@@ -5,4 +5,5 @@
5# 5#
6 6
7obj-$(CONFIG_SYNCLINK_CS) += synclink_cs.o 7obj-$(CONFIG_SYNCLINK_CS) += synclink_cs.o
8obj-$(CONFIG_CARDMAN_4000) += cm4000_cs.o
8obj-$(CONFIG_CARDMAN_4040) += cm4040_cs.o 9obj-$(CONFIG_CARDMAN_4040) += cm4040_cs.o
diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c
new file mode 100644
index 000000000000..ef011ef5dc46
--- /dev/null
+++ b/drivers/char/pcmcia/cm4000_cs.c
@@ -0,0 +1,2078 @@
1 /*
2 * A driver for the PCMCIA Smartcard Reader "Omnikey CardMan Mobile 4000"
3 *
4 * cm4000_cs.c support.linux@omnikey.com
5 *
6 * Tue Oct 23 11:32:43 GMT 2001 herp - cleaned up header files
7 * Sun Jan 20 10:11:15 MET 2002 herp - added modversion header files
8 * Thu Nov 14 16:34:11 GMT 2002 mh - added PPS functionality
9 * Tue Nov 19 16:36:27 GMT 2002 mh - added SUSPEND/RESUME functionailty
10 * Wed Jul 28 12:55:01 CEST 2004 mh - kernel 2.6 adjustments
11 *
12 * current version: 2.4.0gm4
13 *
14 * (C) 2000,2001,2002,2003,2004 Omnikey AG
15 *
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()
21 *
22 * All rights reserved. Licensed under dual BSD/GPL license.
23 */
24
25/* #define PCMCIA_DEBUG 6 */
26
27#include <linux/kernel.h>
28#include <linux/module.h>
29#include <linux/slab.h>
30#include <linux/init.h>
31#include <linux/fs.h>
32#include <linux/delay.h>
33#include <asm/uaccess.h>
34#include <asm/io.h>
35
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>
42
43#include <linux/cm4000_cs.h>
44
45/* #define ATR_CSUM */
46
47#ifdef PCMCIA_DEBUG
48#define reader_to_dev(x) (&handle_to_dev(x->link.handle))
49static int pc_debug = PCMCIA_DEBUG;
50module_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); \
55 } while (0)
56#else
57#define DEBUGP(n, rdr, x, args...)
58#endif
59static char *version = "cm4000_cs.c v2.4.0gm5 - All bugs added by Harald Welte";
60
61#define T_1SEC (HZ)
62#define T_10MSEC msecs_to_jiffies(10)
63#define T_20MSEC msecs_to_jiffies(20)
64#define T_40MSEC msecs_to_jiffies(40)
65#define T_50MSEC msecs_to_jiffies(50)
66#define T_100MSEC msecs_to_jiffies(100)
67#define T_500MSEC msecs_to_jiffies(500)
68
69static void cm4000_detach(dev_link_t *link);
70static void cm4000_release(dev_link_t *link);
71
72static int major; /* major number we get from the kernel */
73
74/* note: the first state has to have number 0 always */
75
76#define M_FETCH_ATR 0
77#define M_TIMEOUT_WAIT 1
78#define M_READ_ATR_LEN 2
79#define M_READ_ATR 3
80#define M_ATR_PRESENT 4
81#define M_BAD_CARD 5
82#define M_CARDOFF 6
83
84#define LOCK_IO 0
85#define LOCK_MONITOR 1
86
87#define IS_AUTOPPS_ACT 6
88#define IS_PROCBYTE_PRESENT 7
89#define IS_INVREV 8
90#define IS_ANY_T0 9
91#define IS_ANY_T1 10
92#define IS_ATR_PRESENT 11
93#define IS_ATR_VALID 12
94#define IS_CMM_ABSENT 13
95#define IS_BAD_LENGTH 14
96#define IS_BAD_CSUM 15
97#define IS_BAD_CARD 16
98
99#define REG_FLAGS0(x) (x + 0)
100#define REG_FLAGS1(x) (x + 1)
101#define REG_NUM_BYTES(x) (x + 2)
102#define REG_BUF_ADDR(x) (x + 3)
103#define REG_BUF_DATA(x) (x + 4)
104#define REG_NUM_SEND(x) (x + 5)
105#define REG_BAUDRATE(x) (x + 6)
106#define REG_STOPBITS(x) (x + 7)
107
108struct cm4000_dev {
109 dev_link_t link; /* pcmcia link */
110 dev_node_t node; /* OS node (major,minor) */
111
112 unsigned char atr[MAX_ATR];
113 unsigned char rbuf[512];
114 unsigned char sbuf[512];
115
116 wait_queue_head_t devq; /* when removing cardman must not be
117 zeroed! */
118
119 wait_queue_head_t ioq; /* if IO is locked, wait on this Q */
120 wait_queue_head_t atrq; /* wait for ATR valid */
121 wait_queue_head_t readq; /* used by write to wake blk.read */
122
123 /* warning: do not move this fields.
124 * initialising to zero depends on it - see ZERO_DEV below. */
125 unsigned char atr_csum;
126 unsigned char atr_len_retry;
127 unsigned short atr_len;
128 unsigned short rlen; /* bytes avail. after write */
129 unsigned short rpos; /* latest read pos. write zeroes */
130 unsigned char procbyte; /* T=0 procedure byte */
131 unsigned char mstate; /* state of card monitor */
132 unsigned char cwarn; /* slow down warning */
133 unsigned char flags0; /* cardman IO-flags 0 */
134 unsigned char flags1; /* cardman IO-flags 1 */
135 unsigned int mdelay; /* variable monitor speeds, in jiffies */
136
137 unsigned int baudv; /* baud value for speed */
138 unsigned char ta1;
139 unsigned char proto; /* T=0, T=1, ... */
140 unsigned long flags; /* lock+flags (MONITOR,IO,ATR) * for concurrent
141 access */
142
143 unsigned char pts[4];
144
145 struct timer_list timer; /* used to keep monitor running */
146 int monitor_running;
147};
148
149#define ZERO_DEV(dev) \
150 memset(&dev->atr_csum,0, \
151 sizeof(struct cm4000_dev) - \
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))
158
159static dev_info_t dev_info = MODULE_NAME;
160static dev_link_t *dev_table[CM4000_MAX_DEV];
161
162/* This table doesn't use spaces after the comma between fields and thus
163 * violates CodingStyle. However, I don't really think wrapping it around will
164 * make it any clearer to read -HW */
165static unsigned char fi_di_table[10][14] = {
166/*FI 00 01 02 03 04 05 06 07 08 09 10 11 12 13 */
167/*DI */
168/* 0 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11},
169/* 1 */ {0x01,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x91,0x11,0x11,0x11,0x11},
170/* 2 */ {0x02,0x12,0x22,0x32,0x11,0x11,0x11,0x11,0x11,0x92,0xA2,0xB2,0x11,0x11},
171/* 3 */ {0x03,0x13,0x23,0x33,0x43,0x53,0x63,0x11,0x11,0x93,0xA3,0xB3,0xC3,0xD3},
172/* 4 */ {0x04,0x14,0x24,0x34,0x44,0x54,0x64,0x11,0x11,0x94,0xA4,0xB4,0xC4,0xD4},
173/* 5 */ {0x00,0x15,0x25,0x35,0x45,0x55,0x65,0x11,0x11,0x95,0xA5,0xB5,0xC5,0xD5},
174/* 6 */ {0x06,0x16,0x26,0x36,0x46,0x56,0x66,0x11,0x11,0x96,0xA6,0xB6,0xC6,0xD6},
175/* 7 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11},
176/* 8 */ {0x08,0x11,0x28,0x38,0x48,0x58,0x68,0x11,0x11,0x98,0xA8,0xB8,0xC8,0xD8},
177/* 9 */ {0x09,0x19,0x29,0x39,0x49,0x59,0x69,0x11,0x11,0x99,0xA9,0xB9,0xC9,0xD9}
178};
179
180#ifndef PCMCIA_DEBUG
181#define xoutb outb
182#define xinb inb
183#else
184static inline void xoutb(unsigned char val, unsigned short port)
185{
186 if (pc_debug >= 7)
187 printk(KERN_DEBUG "outb(val=%.2x,port=%.4x)\n", val, port);
188 outb(val, port);
189}
190static inline unsigned char xinb(unsigned short port)
191{
192 unsigned char val;
193
194 val = inb(port);
195 if (pc_debug >= 7)
196 printk(KERN_DEBUG "%.2x=inb(%.4x)\n", val, port);
197
198 return val;
199}
200#endif
201
202#define b_0000 15
203#define b_0001 14
204#define b_0010 13
205#define b_0011 12
206#define b_0100 11
207#define b_0101 10
208#define b_0110 9
209#define b_0111 8
210#define b_1000 7
211#define b_1001 6
212#define b_1010 5
213#define b_1011 4
214#define b_1100 3
215#define b_1101 2
216#define b_1110 1
217#define b_1111 0
218
219static unsigned char irtab[16] = {
220 b_0000, b_1000, b_0100, b_1100,
221 b_0010, b_1010, b_0110, b_1110,
222 b_0001, b_1001, b_0101, b_1101,
223 b_0011, b_1011, b_0111, b_1111
224};
225
226static void str_invert_revert(unsigned char *b, int len)
227{
228 int i;
229
230 for (i = 0; i < len; i++)
231 b[i] = (irtab[b[i] & 0x0f] << 4) | irtab[b[i] >> 4];
232}
233
234static unsigned char invert_revert(unsigned char ch)
235{
236 return (irtab[ch & 0x0f] << 4) | irtab[ch >> 4];
237}
238
239#define ATRLENCK(dev,pos) \
240 if (pos>=dev->atr_len || pos>=MAX_ATR) \
241 goto return_0;
242
243static unsigned int calc_baudv(unsigned char fidi)
244{
245 unsigned int wcrcf, wbrcf, fi_rfu, di_rfu;
246
247 fi_rfu = 372;
248 di_rfu = 1;
249
250 /* FI */
251 switch ((fidi >> 4) & 0x0F) {
252 case 0x00:
253 wcrcf = 372;
254 break;
255 case 0x01:
256 wcrcf = 372;
257 break;
258 case 0x02:
259 wcrcf = 558;
260 break;
261 case 0x03:
262 wcrcf = 744;
263 break;
264 case 0x04:
265 wcrcf = 1116;
266 break;
267 case 0x05:
268 wcrcf = 1488;
269 break;
270 case 0x06:
271 wcrcf = 1860;
272 break;
273 case 0x07:
274 wcrcf = fi_rfu;
275 break;
276 case 0x08:
277 wcrcf = fi_rfu;
278 break;
279 case 0x09:
280 wcrcf = 512;
281 break;
282 case 0x0A:
283 wcrcf = 768;
284 break;
285 case 0x0B:
286 wcrcf = 1024;
287 break;
288 case 0x0C:
289 wcrcf = 1536;
290 break;
291 case 0x0D:
292 wcrcf = 2048;
293 break;
294 default:
295 wcrcf = fi_rfu;
296 break;
297 }
298
299 /* DI */
300 switch (fidi & 0x0F) {
301 case 0x00:
302 wbrcf = di_rfu;
303 break;
304 case 0x01:
305 wbrcf = 1;
306 break;
307 case 0x02:
308 wbrcf = 2;
309 break;
310 case 0x03:
311 wbrcf = 4;
312 break;
313 case 0x04:
314 wbrcf = 8;
315 break;
316 case 0x05:
317 wbrcf = 16;
318 break;
319 case 0x06:
320 wbrcf = 32;
321 break;
322 case 0x07:
323 wbrcf = di_rfu;
324 break;
325 case 0x08:
326 wbrcf = 12;
327 break;
328 case 0x09:
329 wbrcf = 20;
330 break;
331 default:
332 wbrcf = di_rfu;
333 break;
334 }
335
336 return (wcrcf / wbrcf);
337}
338
339static unsigned short io_read_num_rec_bytes(ioaddr_t iobase, unsigned short *s)
340{
341 unsigned short tmp;
342
343 tmp = *s = 0;
344 do {
345 *s = tmp;
346 tmp = inb(REG_NUM_BYTES(iobase)) |
347 (inb(REG_FLAGS0(iobase)) & 4 ? 0x100 : 0);
348 } while (tmp != *s);
349
350 return *s;
351}
352
353static int parse_atr(struct cm4000_dev *dev)
354{
355 unsigned char any_t1, any_t0;
356 unsigned char ch, ifno;
357 int ix, done;
358
359 DEBUGP(3, dev, "-> parse_atr: dev->atr_len = %i\n", dev->atr_len);
360
361 if (dev->atr_len < 3) {
362 DEBUGP(5, dev, "parse_atr: atr_len < 3\n");
363 return 0;
364 }
365
366 if (dev->atr[0] == 0x3f)
367 set_bit(IS_INVREV, &dev->flags);
368 else
369 clear_bit(IS_INVREV, &dev->flags);
370 ix = 1;
371 ifno = 1;
372 ch = dev->atr[1];
373 dev->proto = 0; /* XXX PROTO */
374 any_t1 = any_t0 = done = 0;
375 dev->ta1 = 0x11; /* defaults to 9600 baud */
376 do {
377 if (ifno == 1 && (ch & 0x10)) {
378 /* read first interface byte and TA1 is present */
379 dev->ta1 = dev->atr[2];
380 DEBUGP(5, dev, "Card says FiDi is 0x%.2x\n", dev->ta1);
381 ifno++;
382 } else if ((ifno == 2) && (ch & 0x10)) { /* TA(2) */
383 dev->ta1 = 0x11;
384 ifno++;
385 }
386
387 DEBUGP(5, dev, "Yi=%.2x\n", ch & 0xf0);
388 ix += ((ch & 0x10) >> 4) /* no of int.face chars */
389 +((ch & 0x20) >> 5)
390 + ((ch & 0x40) >> 6)
391 + ((ch & 0x80) >> 7);
392 /* ATRLENCK(dev,ix); */
393 if (ch & 0x80) { /* TDi */
394 ch = dev->atr[ix];
395 if ((ch & 0x0f)) {
396 any_t1 = 1;
397 DEBUGP(5, dev, "card is capable of T=1\n");
398 } else {
399 any_t0 = 1;
400 DEBUGP(5, dev, "card is capable of T=0\n");
401 }
402 } else
403 done = 1;
404 } while (!done);
405
406 DEBUGP(5, dev, "ix=%d noHist=%d any_t1=%d\n",
407 ix, dev->atr[1] & 15, any_t1);
408 if (ix + 1 + (dev->atr[1] & 0x0f) + any_t1 != dev->atr_len) {
409 DEBUGP(5, dev, "length error\n");
410 return 0;
411 }
412 if (any_t0)
413 set_bit(IS_ANY_T0, &dev->flags);
414
415 if (any_t1) { /* compute csum */
416 dev->atr_csum = 0;
417#ifdef ATR_CSUM
418 for (i = 1; i < dev->atr_len; i++)
419 dev->atr_csum ^= dev->atr[i];
420 if (dev->atr_csum) {
421 set_bit(IS_BAD_CSUM, &dev->flags);
422 DEBUGP(5, dev, "bad checksum\n");
423 goto return_0;
424 }
425#endif
426 if (any_t0 == 0)
427 dev->proto = 1; /* XXX PROTO */
428 set_bit(IS_ANY_T1, &dev->flags);
429 }
430
431 return 1;
432}
433
434struct card_fixup {
435 char atr[12];
436 u_int8_t atr_len;
437 u_int8_t stopbits;
438};
439
440static struct card_fixup card_fixups[] = {
441 { /* ACOS */
442 .atr = { 0x3b, 0xb3, 0x11, 0x00, 0x00, 0x41, 0x01 },
443 .atr_len = 7,
444 .stopbits = 0x03,
445 },
446 { /* Motorola */
447 .atr = {0x3b, 0x76, 0x13, 0x00, 0x00, 0x80, 0x62, 0x07,
448 0x41, 0x81, 0x81 },
449 .atr_len = 11,
450 .stopbits = 0x04,
451 },
452};
453
454static void set_cardparameter(struct cm4000_dev *dev)
455{
456 int i;
457 ioaddr_t iobase = dev->link.io.BasePort1;
458 u_int8_t stopbits = 0x02; /* ISO default */
459
460 DEBUGP(3, dev, "-> set_cardparameter\n");
461
462 dev->flags1 = dev->flags1 | (((dev->baudv - 1) & 0x0100) >> 8);
463 xoutb(dev->flags1, REG_FLAGS1(iobase));
464 DEBUGP(5, dev, "flags1 = 0x%02x\n", dev->flags1);
465
466 /* set baudrate */
467 xoutb((unsigned char)((dev->baudv - 1) & 0xFF), REG_BAUDRATE(iobase));
468
469 DEBUGP(5, dev, "baudv = %i -> write 0x%02x\n", dev->baudv,
470 ((dev->baudv - 1) & 0xFF));
471
472 /* set stopbits */
473 for (i = 0; i < ARRAY_SIZE(card_fixups); i++) {
474 if (!memcmp(dev->atr, card_fixups[i].atr,
475 card_fixups[i].atr_len))
476 stopbits = card_fixups[i].stopbits;
477 }
478 xoutb(stopbits, REG_STOPBITS(iobase));
479
480 DEBUGP(3, dev, "<- set_cardparameter\n");
481}
482
483static int set_protocol(struct cm4000_dev *dev, struct ptsreq *ptsreq)
484{
485
486 unsigned long tmp, i;
487 unsigned short num_bytes_read;
488 unsigned char pts_reply[4];
489 ssize_t rc;
490 ioaddr_t iobase = dev->link.io.BasePort1;
491
492 rc = 0;
493
494 DEBUGP(3, dev, "-> set_protocol\n");
495 DEBUGP(5, dev, "ptsreq->Protocol = 0x%.8x, ptsreq->Flags=0x%.8x, "
496 "ptsreq->pts1=0x%.2x, ptsreq->pts2=0x%.2x, "
497 "ptsreq->pts3=0x%.2x\n", (unsigned int)ptsreq->protocol,
498 (unsigned int)ptsreq->flags, ptsreq->pts1, ptsreq->pts2,
499 ptsreq->pts3);
500
501 /* Fill PTS structure */
502 dev->pts[0] = 0xff;
503 dev->pts[1] = 0x00;
504 tmp = ptsreq->protocol;
505 while ((tmp = (tmp >> 1)) > 0)
506 dev->pts[1]++;
507 dev->proto = dev->pts[1]; /* Set new protocol */
508 dev->pts[1] = (0x01 << 4) | (dev->pts[1]);
509
510 /* Correct Fi/Di according to CM4000 Fi/Di table */
511 DEBUGP(5, dev, "Ta(1) from ATR is 0x%.2x\n", dev->ta1);
512 /* set Fi/Di according to ATR TA(1) */
513 dev->pts[2] = fi_di_table[dev->ta1 & 0x0F][(dev->ta1 >> 4) & 0x0F];
514
515 /* Calculate PCK character */
516 dev->pts[3] = dev->pts[0] ^ dev->pts[1] ^ dev->pts[2];
517
518 DEBUGP(5, dev, "pts0=%.2x, pts1=%.2x, pts2=%.2x, pts3=%.2x\n",
519 dev->pts[0], dev->pts[1], dev->pts[2], dev->pts[3]);
520
521 /* check card convention */
522 if (test_bit(IS_INVREV, &dev->flags))
523 str_invert_revert(dev->pts, 4);
524
525 /* reset SM */
526 xoutb(0x80, REG_FLAGS0(iobase));
527
528 /* Enable access to the message buffer */
529 DEBUGP(5, dev, "Enable access to the messages buffer\n");
530 dev->flags1 = 0x20 /* T_Active */
531 | (test_bit(IS_INVREV, &dev->flags) ? 0x02 : 0x00) /* inv parity */
532 | ((dev->baudv >> 8) & 0x01); /* MSB-baud */
533 xoutb(dev->flags1, REG_FLAGS1(iobase));
534
535 DEBUGP(5, dev, "Enable message buffer -> flags1 = 0x%.2x\n",
536 dev->flags1);
537
538 /* write challenge to the buffer */
539 DEBUGP(5, dev, "Write challenge to buffer: ");
540 for (i = 0; i < 4; i++) {
541 xoutb(i, REG_BUF_ADDR(iobase));
542 xoutb(dev->pts[i], REG_BUF_DATA(iobase)); /* buf data */
543#ifdef PCMCIA_DEBUG
544 if (pc_debug >= 5)
545 printk("0x%.2x ", dev->pts[i]);
546 }
547 if (pc_debug >= 5)
548 printk("\n");
549#else
550 }
551#endif
552
553 /* set number of bytes to write */
554 DEBUGP(5, dev, "Set number of bytes to write\n");
555 xoutb(0x04, REG_NUM_SEND(iobase));
556
557 /* Trigger CARDMAN CONTROLLER */
558 xoutb(0x50, REG_FLAGS0(iobase));
559
560 /* Monitor progress */
561 /* wait for xmit done */
562 DEBUGP(5, dev, "Waiting for NumRecBytes getting valid\n");
563
564 for (i = 0; i < 100; i++) {
565 if (inb(REG_FLAGS0(iobase)) & 0x08) {
566 DEBUGP(5, dev, "NumRecBytes is valid\n");
567 break;
568 }
569 mdelay(10);
570 }
571 if (i == 100) {
572 DEBUGP(5, dev, "Timeout waiting for NumRecBytes getting "
573 "valid\n");
574 rc = -EIO;
575 goto exit_setprotocol;
576 }
577
578 DEBUGP(5, dev, "Reading NumRecBytes\n");
579 for (i = 0; i < 100; i++) {
580 io_read_num_rec_bytes(iobase, &num_bytes_read);
581 if (num_bytes_read >= 4) {
582 DEBUGP(2, dev, "NumRecBytes = %i\n", num_bytes_read);
583 break;
584 }
585 mdelay(10);
586 }
587
588 /* check whether it is a short PTS reply? */
589 if (num_bytes_read == 3)
590 i = 0;
591
592 if (i == 100) {
593 DEBUGP(5, dev, "Timeout reading num_bytes_read\n");
594 rc = -EIO;
595 goto exit_setprotocol;
596 }
597
598 DEBUGP(5, dev, "Reset the CARDMAN CONTROLLER\n");
599 xoutb(0x80, REG_FLAGS0(iobase));
600
601 /* Read PPS reply */
602 DEBUGP(5, dev, "Read PPS reply\n");
603 for (i = 0; i < num_bytes_read; i++) {
604 xoutb(i, REG_BUF_ADDR(iobase));
605 pts_reply[i] = inb(REG_BUF_DATA(iobase));
606 }
607
608#ifdef PCMCIA_DEBUG
609 DEBUGP(2, dev, "PTSreply: ");
610 for (i = 0; i < num_bytes_read; i++) {
611 if (pc_debug >= 5)
612 printk("0x%.2x ", pts_reply[i]);
613 }
614 printk("\n");
615#endif /* PCMCIA_DEBUG */
616
617 DEBUGP(5, dev, "Clear Tactive in Flags1\n");
618 xoutb(0x20, REG_FLAGS1(iobase));
619
620 /* Compare ptsreq and ptsreply */
621 if ((dev->pts[0] == pts_reply[0]) &&
622 (dev->pts[1] == pts_reply[1]) &&
623 (dev->pts[2] == pts_reply[2]) && (dev->pts[3] == pts_reply[3])) {
624 /* setcardparameter according to PPS */
625 dev->baudv = calc_baudv(dev->pts[2]);
626 set_cardparameter(dev);
627 } else if ((dev->pts[0] == pts_reply[0]) &&
628 ((dev->pts[1] & 0xef) == pts_reply[1]) &&
629 ((pts_reply[0] ^ pts_reply[1]) == pts_reply[2])) {
630 /* short PTS reply, set card parameter to default values */
631 dev->baudv = calc_baudv(0x11);
632 set_cardparameter(dev);
633 } else
634 rc = -EIO;
635
636exit_setprotocol:
637 DEBUGP(3, dev, "<- set_protocol\n");
638 return rc;
639}
640
641static int io_detect_cm4000(ioaddr_t iobase, struct cm4000_dev *dev)
642{
643
644 /* note: statemachine is assumed to be reset */
645 if (inb(REG_FLAGS0(iobase)) & 8) {
646 clear_bit(IS_ATR_VALID, &dev->flags);
647 set_bit(IS_CMM_ABSENT, &dev->flags);
648 return 0; /* detect CMM = 1 -> failure */
649 }
650 /* xoutb(0x40, REG_FLAGS1(iobase)); detectCMM */
651 xoutb(dev->flags1 | 0x40, REG_FLAGS1(iobase));
652 if ((inb(REG_FLAGS0(iobase)) & 8) == 0) {
653 clear_bit(IS_ATR_VALID, &dev->flags);
654 set_bit(IS_CMM_ABSENT, &dev->flags);
655 return 0; /* detect CMM=0 -> failure */
656 }
657 /* clear detectCMM again by restoring original flags1 */
658 xoutb(dev->flags1, REG_FLAGS1(iobase));
659 return 1;
660}
661
662static void terminate_monitor(struct cm4000_dev *dev)
663{
664
665 /* tell the monitor to stop and wait until
666 * it terminates.
667 */
668 DEBUGP(3, dev, "-> terminate_monitor\n");
669 wait_event_interruptible(dev->devq,
670 test_and_set_bit(LOCK_MONITOR,
671 (void *)&dev->flags));
672
673 /* now, LOCK_MONITOR has been set.
674 * allow a last cycle in the monitor.
675 * the monitor will indicate that it has
676 * finished by clearing this bit.
677 */
678 DEBUGP(5, dev, "Now allow last cycle of monitor!\n");
679 while (test_bit(LOCK_MONITOR, (void *)&dev->flags))
680 msleep(25);
681
682 DEBUGP(5, dev, "Delete timer\n");
683 del_timer_sync(&dev->timer);
684#ifdef PCMCIA_DEBUG
685 dev->monitor_running = 0;
686#endif
687
688 DEBUGP(3, dev, "<- terminate_monitor\n");
689}
690
691/*
692 * monitor the card every 50msec. as a side-effect, retrieve the
693 * atr once a card is inserted. another side-effect of retrieving the
694 * atr is that the card will be powered on, so there is no need to
695 * power on the card explictely from the application: the driver
696 * is already doing that for you.
697 */
698
699static void monitor_card(unsigned long p)
700{
701 struct cm4000_dev *dev = (struct cm4000_dev *) p;
702 ioaddr_t iobase = dev->link.io.BasePort1;
703 unsigned short s;
704 struct ptsreq ptsreq;
705 int i, atrc;
706
707 DEBUGP(7, dev, "-> monitor_card\n");
708
709 /* if someone has set the lock for us: we're done! */
710 if (test_and_set_bit(LOCK_MONITOR, &dev->flags)) {
711 DEBUGP(4, dev, "About to stop monitor\n");
712 /* no */
713 dev->rlen =
714 dev->rpos =
715 dev->atr_csum = dev->atr_len_retry = dev->cwarn = 0;
716 dev->mstate = M_FETCH_ATR;
717 clear_bit(LOCK_MONITOR, &dev->flags);
718 /* close et al. are sleeping on devq, so wake it */
719 wake_up_interruptible(&dev->devq);
720 DEBUGP(2, dev, "<- monitor_card (we are done now)\n");
721 return;
722 }
723
724 /* try to lock io: if it is already locked, just add another timer */
725 if (test_and_set_bit(LOCK_IO, (void *)&dev->flags)) {
726 DEBUGP(4, dev, "Couldn't get IO lock\n");
727 goto return_with_timer;
728 }
729
730 /* is a card/a reader inserted at all ? */
731 dev->flags0 = xinb(REG_FLAGS0(iobase));
732 DEBUGP(7, dev, "dev->flags0 = 0x%2x\n", dev->flags0);
733 DEBUGP(7, dev, "smartcard present: %s\n",
734 dev->flags0 & 1 ? "yes" : "no");
735 DEBUGP(7, dev, "cardman present: %s\n",
736 dev->flags0 == 0xff ? "no" : "yes");
737
738 if ((dev->flags0 & 1) == 0 /* no smartcard inserted */
739 || dev->flags0 == 0xff) { /* no cardman inserted */
740 /* no */
741 dev->rlen =
742 dev->rpos =
743 dev->atr_csum = dev->atr_len_retry = dev->cwarn = 0;
744 dev->mstate = M_FETCH_ATR;
745
746 dev->flags &= 0x000000ff; /* only keep IO and MONITOR locks */
747
748 if (dev->flags0 == 0xff) {
749 DEBUGP(4, dev, "set IS_CMM_ABSENT bit\n");
750 set_bit(IS_CMM_ABSENT, &dev->flags);
751 } else if (test_bit(IS_CMM_ABSENT, &dev->flags)) {
752 DEBUGP(4, dev, "clear IS_CMM_ABSENT bit "
753 "(card is removed)\n");
754 clear_bit(IS_CMM_ABSENT, &dev->flags);
755 }
756
757 goto release_io;
758 } else if ((dev->flags0 & 1) && test_bit(IS_CMM_ABSENT, &dev->flags)) {
759 /* cardman and card present but cardman was absent before
760 * (after suspend with inserted card) */
761 DEBUGP(4, dev, "clear IS_CMM_ABSENT bit (card is inserted)\n");
762 clear_bit(IS_CMM_ABSENT, &dev->flags);
763 }
764
765 if (test_bit(IS_ATR_VALID, &dev->flags) == 1) {
766 DEBUGP(7, dev, "believe ATR is already valid (do nothing)\n");
767 goto release_io;
768 }
769
770 switch (dev->mstate) {
771 unsigned char flags0;
772 case M_CARDOFF:
773 DEBUGP(4, dev, "M_CARDOFF\n");
774 flags0 = inb(REG_FLAGS0(iobase));
775 if (flags0 & 0x02) {
776 /* wait until Flags0 indicate power is off */
777 dev->mdelay = T_10MSEC;
778 } else {
779 /* Flags0 indicate power off and no card inserted now;
780 * Reset CARDMAN CONTROLLER */
781 xoutb(0x80, REG_FLAGS0(iobase));
782
783 /* prepare for fetching ATR again: after card off ATR
784 * is read again automatically */
785 dev->rlen =
786 dev->rpos =
787 dev->atr_csum =
788 dev->atr_len_retry = dev->cwarn = 0;
789 dev->mstate = M_FETCH_ATR;
790
791 /* minimal gap between CARDOFF and read ATR is 50msec */
792 dev->mdelay = T_50MSEC;
793 }
794 break;
795 case M_FETCH_ATR:
796 DEBUGP(4, dev, "M_FETCH_ATR\n");
797 xoutb(0x80, REG_FLAGS0(iobase));
798 DEBUGP(4, dev, "Reset BAUDV to 9600\n");
799 dev->baudv = 0x173; /* 9600 */
800 xoutb(0x02, REG_STOPBITS(iobase)); /* stopbits=2 */
801 xoutb(0x73, REG_BAUDRATE(iobase)); /* baud value */
802 xoutb(0x21, REG_FLAGS1(iobase)); /* T_Active=1, baud
803 value */
804 /* warm start vs. power on: */
805 xoutb(dev->flags0 & 2 ? 0x46 : 0x44, REG_FLAGS0(iobase));
806 dev->mdelay = T_40MSEC;
807 dev->mstate = M_TIMEOUT_WAIT;
808 break;
809 case M_TIMEOUT_WAIT:
810 DEBUGP(4, dev, "M_TIMEOUT_WAIT\n");
811 /* numRecBytes */
812 io_read_num_rec_bytes(iobase, &dev->atr_len);
813 dev->mdelay = T_10MSEC;
814 dev->mstate = M_READ_ATR_LEN;
815 break;
816 case M_READ_ATR_LEN:
817 DEBUGP(4, dev, "M_READ_ATR_LEN\n");
818 /* infinite loop possible, since there is no timeout */
819
820#define MAX_ATR_LEN_RETRY 100
821
822 if (dev->atr_len == io_read_num_rec_bytes(iobase, &s)) {
823 if (dev->atr_len_retry++ >= MAX_ATR_LEN_RETRY) { /* + XX msec */
824 dev->mdelay = T_10MSEC;
825 dev->mstate = M_READ_ATR;
826 }
827 } else {
828 dev->atr_len = s;
829 dev->atr_len_retry = 0; /* set new timeout */
830 }
831
832 DEBUGP(4, dev, "Current ATR_LEN = %i\n", dev->atr_len);
833 break;
834 case M_READ_ATR:
835 DEBUGP(4, dev, "M_READ_ATR\n");
836 xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */
837 for (i = 0; i < dev->atr_len; i++) {
838 xoutb(i, REG_BUF_ADDR(iobase));
839 dev->atr[i] = inb(REG_BUF_DATA(iobase));
840 }
841 /* Deactivate T_Active flags */
842 DEBUGP(4, dev, "Deactivate T_Active flags\n");
843 dev->flags1 = 0x01;
844 xoutb(dev->flags1, REG_FLAGS1(iobase));
845
846 /* atr is present (which doesnt mean it's valid) */
847 set_bit(IS_ATR_PRESENT, &dev->flags);
848 if (dev->atr[0] == 0x03)
849 str_invert_revert(dev->atr, dev->atr_len);
850 atrc = parse_atr(dev);
851 if (atrc == 0) { /* atr invalid */
852 dev->mdelay = 0;
853 dev->mstate = M_BAD_CARD;
854 } else {
855 dev->mdelay = T_50MSEC;
856 dev->mstate = M_ATR_PRESENT;
857 set_bit(IS_ATR_VALID, &dev->flags);
858 }
859
860 if (test_bit(IS_ATR_VALID, &dev->flags) == 1) {
861 DEBUGP(4, dev, "monitor_card: ATR valid\n");
862 /* if ta1 == 0x11, no PPS necessary (default values) */
863 /* do not do PPS with multi protocol cards */
864 if ((test_bit(IS_AUTOPPS_ACT, &dev->flags) == 0) &&
865 (dev->ta1 != 0x11) &&
866 !(test_bit(IS_ANY_T0, &dev->flags) &&
867 test_bit(IS_ANY_T1, &dev->flags))) {
868 DEBUGP(4, dev, "Perform AUTOPPS\n");
869 set_bit(IS_AUTOPPS_ACT, &dev->flags);
870 ptsreq.protocol = ptsreq.protocol =
871 (0x01 << dev->proto);
872 ptsreq.flags = 0x01;
873 ptsreq.pts1 = 0x00;
874 ptsreq.pts2 = 0x00;
875 ptsreq.pts3 = 0x00;
876 if (set_protocol(dev, &ptsreq) == 0) {
877 DEBUGP(4, dev, "AUTOPPS ret SUCC\n");
878 clear_bit(IS_AUTOPPS_ACT, &dev->flags);
879 wake_up_interruptible(&dev->atrq);
880 } else {
881 DEBUGP(4, dev, "AUTOPPS failed: "
882 "repower using defaults\n");
883 /* prepare for repowering */
884 clear_bit(IS_ATR_PRESENT, &dev->flags);
885 clear_bit(IS_ATR_VALID, &dev->flags);
886 dev->rlen =
887 dev->rpos =
888 dev->atr_csum =
889 dev->atr_len_retry = dev->cwarn = 0;
890 dev->mstate = M_FETCH_ATR;
891
892 dev->mdelay = T_50MSEC;
893 }
894 } else {
895 /* for cards which use slightly different
896 * params (extra guard time) */
897 set_cardparameter(dev);
898 if (test_bit(IS_AUTOPPS_ACT, &dev->flags) == 1)
899 DEBUGP(4, dev, "AUTOPPS already active "
900 "2nd try:use default values\n");
901 if (dev->ta1 == 0x11)
902 DEBUGP(4, dev, "No AUTOPPS necessary "
903 "TA(1)==0x11\n");
904 if (test_bit(IS_ANY_T0, &dev->flags)
905 && test_bit(IS_ANY_T1, &dev->flags))
906 DEBUGP(4, dev, "Do NOT perform AUTOPPS "
907 "with multiprotocol cards\n");
908 clear_bit(IS_AUTOPPS_ACT, &dev->flags);
909 wake_up_interruptible(&dev->atrq);
910 }
911 } else {
912 DEBUGP(4, dev, "ATR invalid\n");
913 wake_up_interruptible(&dev->atrq);
914 }
915 break;
916 case M_BAD_CARD:
917 DEBUGP(4, dev, "M_BAD_CARD\n");
918 /* slow down warning, but prompt immediately after insertion */
919 if (dev->cwarn == 0 || dev->cwarn == 10) {
920 set_bit(IS_BAD_CARD, &dev->flags);
921 printk(KERN_WARNING MODULE_NAME ": device %s: ",
922 dev->node.dev_name);
923 if (test_bit(IS_BAD_CSUM, &dev->flags)) {
924 DEBUGP(4, dev, "ATR checksum (0x%.2x, should "
925 "be zero) failed\n", dev->atr_csum);
926 }
927#ifdef PCMCIA_DEBUG
928 else if (test_bit(IS_BAD_LENGTH, &dev->flags)) {
929 DEBUGP(4, dev, "ATR length error\n");
930 } else {
931 DEBUGP(4, dev, "card damaged or wrong way "
932 "inserted\n");
933 }
934#endif
935 dev->cwarn = 0;
936 wake_up_interruptible(&dev->atrq); /* wake open */
937 }
938 dev->cwarn++;
939 dev->mdelay = T_100MSEC;
940 dev->mstate = M_FETCH_ATR;
941 break;
942 default:
943 DEBUGP(7, dev, "Unknown action\n");
944 break; /* nothing */
945 }
946
947release_io:
948 DEBUGP(7, dev, "release_io\n");
949 clear_bit(LOCK_IO, &dev->flags);
950 wake_up_interruptible(&dev->ioq); /* whoever needs IO */
951
952return_with_timer:
953 DEBUGP(7, dev, "<- monitor_card (returns with timer)\n");
954 dev->timer.expires = jiffies + dev->mdelay;
955 add_timer(&dev->timer);
956 clear_bit(LOCK_MONITOR, &dev->flags);
957}
958
959/* Interface to userland (file_operations) */
960
961static ssize_t cmm_read(struct file *filp, __user char *buf, size_t count,
962 loff_t *ppos)
963{
964 struct cm4000_dev *dev = filp->private_data;
965 ioaddr_t iobase = dev->link.io.BasePort1;
966 ssize_t rc;
967 int i, j, k;
968
969 DEBUGP(2, dev, "-> cmm_read(%s,%d)\n", current->comm, current->pid);
970
971 if (count == 0) /* according to manpage */
972 return 0;
973
974 if ((dev->link.state & DEV_PRESENT) == 0 || /* socket removed */
975 test_bit(IS_CMM_ABSENT, &dev->flags))
976 return -ENODEV;
977
978 if (test_bit(IS_BAD_CSUM, &dev->flags))
979 return -EIO;
980
981 /* also see the note about this in cmm_write */
982 if (wait_event_interruptible
983 (dev->atrq,
984 ((filp->f_flags & O_NONBLOCK)
985 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) {
986 if (filp->f_flags & O_NONBLOCK)
987 return -EAGAIN;
988 return -ERESTARTSYS;
989 }
990
991 if (test_bit(IS_ATR_VALID, &dev->flags) == 0)
992 return -EIO;
993
994 /* this one implements blocking IO */
995 if (wait_event_interruptible
996 (dev->readq,
997 ((filp->f_flags & O_NONBLOCK) || (dev->rpos < dev->rlen)))) {
998 if (filp->f_flags & O_NONBLOCK)
999 return -EAGAIN;
1000 return -ERESTARTSYS;
1001 }
1002
1003 /* lock io */
1004 if (wait_event_interruptible
1005 (dev->ioq,
1006 ((filp->f_flags & O_NONBLOCK)
1007 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) {
1008 if (filp->f_flags & O_NONBLOCK)
1009 return -EAGAIN;
1010 return -ERESTARTSYS;
1011 }
1012
1013 rc = 0;
1014 dev->flags0 = inb(REG_FLAGS0(iobase));
1015 if ((dev->flags0 & 1) == 0 /* no smartcard inserted */
1016 || dev->flags0 == 0xff) { /* no cardman inserted */
1017 clear_bit(IS_ATR_VALID, &dev->flags);
1018 if (dev->flags0 & 1) {
1019 set_bit(IS_CMM_ABSENT, &dev->flags);
1020 rc = -ENODEV;
1021 }
1022 rc = -EIO;
1023 goto release_io;
1024 }
1025
1026 DEBUGP(4, dev, "begin read answer\n");
1027 j = min(count, (size_t)(dev->rlen - dev->rpos));
1028 k = dev->rpos;
1029 if (k + j > 255)
1030 j = 256 - k;
1031 DEBUGP(4, dev, "read1 j=%d\n", j);
1032 for (i = 0; i < j; i++) {
1033 xoutb(k++, REG_BUF_ADDR(iobase));
1034 dev->rbuf[i] = xinb(REG_BUF_DATA(iobase));
1035 }
1036 j = min(count, (size_t)(dev->rlen - dev->rpos));
1037 if (k + j > 255) {
1038 DEBUGP(4, dev, "read2 j=%d\n", j);
1039 dev->flags1 |= 0x10; /* MSB buf addr set */
1040 xoutb(dev->flags1, REG_FLAGS1(iobase));
1041 for (; i < j; i++) {
1042 xoutb(k++, REG_BUF_ADDR(iobase));
1043 dev->rbuf[i] = xinb(REG_BUF_DATA(iobase));
1044 }
1045 }
1046
1047 if (dev->proto == 0 && count > dev->rlen - dev->rpos) {
1048 DEBUGP(4, dev, "T=0 and count > buffer\n");
1049 dev->rbuf[i] = dev->rbuf[i - 1];
1050 dev->rbuf[i - 1] = dev->procbyte;
1051 j++;
1052 }
1053 count = j;
1054
1055 dev->rpos = dev->rlen + 1;
1056
1057 /* Clear T1Active */
1058 DEBUGP(4, dev, "Clear T1Active\n");
1059 dev->flags1 &= 0xdf;
1060 xoutb(dev->flags1, REG_FLAGS1(iobase));
1061
1062 xoutb(0, REG_FLAGS1(iobase)); /* clear detectCMM */
1063 /* last check before exit */
1064 if (!io_detect_cm4000(iobase, dev))
1065 count = -ENODEV;
1066
1067 if (test_bit(IS_INVREV, &dev->flags) && count > 0)
1068 str_invert_revert(dev->rbuf, count);
1069
1070 if (copy_to_user(buf, dev->rbuf, count))
1071 return -EFAULT;
1072
1073release_io:
1074 clear_bit(LOCK_IO, &dev->flags);
1075 wake_up_interruptible(&dev->ioq);
1076
1077 DEBUGP(2, dev, "<- cmm_read returns: rc = %Zi\n",
1078 (rc < 0 ? rc : count));
1079 return rc < 0 ? rc : count;
1080}
1081
1082static ssize_t cmm_write(struct file *filp, const char __user *buf,
1083 size_t count, loff_t *ppos)
1084{
1085 struct cm4000_dev *dev = (struct cm4000_dev *) filp->private_data;
1086 ioaddr_t iobase = dev->link.io.BasePort1;
1087 unsigned short s;
1088 unsigned char tmp;
1089 unsigned char infolen;
1090 unsigned char sendT0;
1091 unsigned short nsend;
1092 unsigned short nr;
1093 ssize_t rc;
1094 int i;
1095
1096 DEBUGP(2, dev, "-> cmm_write(%s,%d)\n", current->comm, current->pid);
1097
1098 if (count == 0) /* according to manpage */
1099 return 0;
1100
1101 if (dev->proto == 0 && count < 4) {
1102 /* T0 must have at least 4 bytes */
1103 DEBUGP(4, dev, "T0 short write\n");
1104 return -EIO;
1105 }
1106
1107 nr = count & 0x1ff; /* max bytes to write */
1108
1109 sendT0 = dev->proto ? 0 : nr > 5 ? 0x08 : 0;
1110
1111 if ((dev->link.state & DEV_PRESENT) == 0 || /* socket removed */
1112 test_bit(IS_CMM_ABSENT, &dev->flags))
1113 return -ENODEV;
1114
1115 if (test_bit(IS_BAD_CSUM, &dev->flags)) {
1116 DEBUGP(4, dev, "bad csum\n");
1117 return -EIO;
1118 }
1119
1120 /*
1121 * wait for atr to become valid.
1122 * note: it is important to lock this code. if we dont, the monitor
1123 * could be run between test_bit and the the call the sleep on the
1124 * atr-queue. if *then* the monitor detects atr valid, it will wake up
1125 * any process on the atr-queue, *but* since we have been interrupted,
1126 * we do not yet sleep on this queue. this would result in a missed
1127 * wake_up and the calling process would sleep forever (until
1128 * interrupted). also, do *not* restore_flags before sleep_on, because
1129 * this could result in the same situation!
1130 */
1131 if (wait_event_interruptible
1132 (dev->atrq,
1133 ((filp->f_flags & O_NONBLOCK)
1134 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) {
1135 if (filp->f_flags & O_NONBLOCK)
1136 return -EAGAIN;
1137 return -ERESTARTSYS;
1138 }
1139
1140 if (test_bit(IS_ATR_VALID, &dev->flags) == 0) { /* invalid atr */
1141 DEBUGP(4, dev, "invalid ATR\n");
1142 return -EIO;
1143 }
1144
1145 /* lock io */
1146 if (wait_event_interruptible
1147 (dev->ioq,
1148 ((filp->f_flags & O_NONBLOCK)
1149 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) {
1150 if (filp->f_flags & O_NONBLOCK)
1151 return -EAGAIN;
1152 return -ERESTARTSYS;
1153 }
1154
1155 if (copy_from_user(dev->sbuf, buf, ((count > 512) ? 512 : count)))
1156 return -EFAULT;
1157
1158 rc = 0;
1159 dev->flags0 = inb(REG_FLAGS0(iobase));
1160 if ((dev->flags0 & 1) == 0 /* no smartcard inserted */
1161 || dev->flags0 == 0xff) { /* no cardman inserted */
1162 clear_bit(IS_ATR_VALID, &dev->flags);
1163 if (dev->flags0 & 1) {
1164 set_bit(IS_CMM_ABSENT, &dev->flags);
1165 rc = -ENODEV;
1166 } else {
1167 DEBUGP(4, dev, "IO error\n");
1168 rc = -EIO;
1169 }
1170 goto release_io;
1171 }
1172
1173 xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */
1174
1175 if (!io_detect_cm4000(iobase, dev)) {
1176 rc = -ENODEV;
1177 goto release_io;
1178 }
1179
1180 /* reflect T=0 send/read mode in flags1 */
1181 dev->flags1 |= (sendT0);
1182
1183 set_cardparameter(dev);
1184
1185 /* dummy read, reset flag procedure received */
1186 tmp = inb(REG_FLAGS1(iobase));
1187
1188 dev->flags1 = 0x20 /* T_Active */
1189 | (sendT0)
1190 | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0)/* inverse parity */
1191 | (((dev->baudv - 1) & 0x0100) >> 8); /* MSB-Baud */
1192 DEBUGP(1, dev, "set dev->flags1 = 0x%.2x\n", dev->flags1);
1193 xoutb(dev->flags1, REG_FLAGS1(iobase));
1194
1195 /* xmit data */
1196 DEBUGP(4, dev, "Xmit data\n");
1197 for (i = 0; i < nr; i++) {
1198 if (i >= 256) {
1199 dev->flags1 = 0x20 /* T_Active */
1200 | (sendT0) /* SendT0 */
1201 /* inverse parity: */
1202 | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0)
1203 | (((dev->baudv - 1) & 0x0100) >> 8) /* MSB-Baud */
1204 | 0x10; /* set address high */
1205 DEBUGP(4, dev, "dev->flags = 0x%.2x - set address "
1206 "high\n", dev->flags1);
1207 xoutb(dev->flags1, REG_FLAGS1(iobase));
1208 }
1209 if (test_bit(IS_INVREV, &dev->flags)) {
1210 DEBUGP(4, dev, "Apply inverse convention for 0x%.2x "
1211 "-> 0x%.2x\n", (unsigned char)dev->sbuf[i],
1212 invert_revert(dev->sbuf[i]));
1213 xoutb(i, REG_BUF_ADDR(iobase));
1214 xoutb(invert_revert(dev->sbuf[i]),
1215 REG_BUF_DATA(iobase));
1216 } else {
1217 xoutb(i, REG_BUF_ADDR(iobase));
1218 xoutb(dev->sbuf[i], REG_BUF_DATA(iobase));
1219 }
1220 }
1221 DEBUGP(4, dev, "Xmit done\n");
1222
1223 if (dev->proto == 0) {
1224 /* T=0 proto: 0 byte reply */
1225 if (nr == 4) {
1226 DEBUGP(4, dev, "T=0 assumes 0 byte reply\n");
1227 xoutb(i, REG_BUF_ADDR(iobase));
1228 if (test_bit(IS_INVREV, &dev->flags))
1229 xoutb(0xff, REG_BUF_DATA(iobase));
1230 else
1231 xoutb(0x00, REG_BUF_DATA(iobase));
1232 }
1233
1234 /* numSendBytes */
1235 if (sendT0)
1236 nsend = nr;
1237 else {
1238 if (nr == 4)
1239 nsend = 5;
1240 else {
1241 nsend = 5 + (unsigned char)dev->sbuf[4];
1242 if (dev->sbuf[4] == 0)
1243 nsend += 0x100;
1244 }
1245 }
1246 } else
1247 nsend = nr;
1248
1249 /* T0: output procedure byte */
1250 if (test_bit(IS_INVREV, &dev->flags)) {
1251 DEBUGP(4, dev, "T=0 set Procedure byte (inverse-reverse) "
1252 "0x%.2x\n", invert_revert(dev->sbuf[1]));
1253 xoutb(invert_revert(dev->sbuf[1]), REG_NUM_BYTES(iobase));
1254 } else {
1255 DEBUGP(4, dev, "T=0 set Procedure byte 0x%.2x\n", dev->sbuf[1]);
1256 xoutb(dev->sbuf[1], REG_NUM_BYTES(iobase));
1257 }
1258
1259 DEBUGP(1, dev, "set NumSendBytes = 0x%.2x\n",
1260 (unsigned char)(nsend & 0xff));
1261 xoutb((unsigned char)(nsend & 0xff), REG_NUM_SEND(iobase));
1262
1263 DEBUGP(1, dev, "Trigger CARDMAN CONTROLLER (0x%.2x)\n",
1264 0x40 /* SM_Active */
1265 | (dev->flags0 & 2 ? 0 : 4) /* power on if needed */
1266 |(dev->proto ? 0x10 : 0x08) /* T=1/T=0 */
1267 |(nsend & 0x100) >> 8 /* MSB numSendBytes */ );
1268 xoutb(0x40 /* SM_Active */
1269 | (dev->flags0 & 2 ? 0 : 4) /* power on if needed */
1270 |(dev->proto ? 0x10 : 0x08) /* T=1/T=0 */
1271 |(nsend & 0x100) >> 8, /* MSB numSendBytes */
1272 REG_FLAGS0(iobase));
1273
1274 /* wait for xmit done */
1275 if (dev->proto == 1) {
1276 DEBUGP(4, dev, "Wait for xmit done\n");
1277 for (i = 0; i < 1000; i++) {
1278 if (inb(REG_FLAGS0(iobase)) & 0x08)
1279 break;
1280 msleep_interruptible(10);
1281 }
1282 if (i == 1000) {
1283 DEBUGP(4, dev, "timeout waiting for xmit done\n");
1284 rc = -EIO;
1285 goto release_io;
1286 }
1287 }
1288
1289 /* T=1: wait for infoLen */
1290
1291 infolen = 0;
1292 if (dev->proto) {
1293 /* wait until infoLen is valid */
1294 for (i = 0; i < 6000; i++) { /* max waiting time of 1 min */
1295 io_read_num_rec_bytes(iobase, &s);
1296 if (s >= 3) {
1297 infolen = inb(REG_FLAGS1(iobase));
1298 DEBUGP(4, dev, "infolen=%d\n", infolen);
1299 break;
1300 }
1301 msleep_interruptible(10);
1302 }
1303 if (i == 6000) {
1304 DEBUGP(4, dev, "timeout waiting for infoLen\n");
1305 rc = -EIO;
1306 goto release_io;
1307 }
1308 } else
1309 clear_bit(IS_PROCBYTE_PRESENT, &dev->flags);
1310
1311 /* numRecBytes | bit9 of numRecytes */
1312 io_read_num_rec_bytes(iobase, &dev->rlen);
1313 for (i = 0; i < 600; i++) { /* max waiting time of 2 sec */
1314 if (dev->proto) {
1315 if (dev->rlen >= infolen + 4)
1316 break;
1317 }
1318 msleep_interruptible(10);
1319 /* numRecBytes | bit9 of numRecytes */
1320 io_read_num_rec_bytes(iobase, &s);
1321 if (s > dev->rlen) {
1322 DEBUGP(1, dev, "NumRecBytes inc (reset timeout)\n");
1323 i = 0; /* reset timeout */
1324 dev->rlen = s;
1325 }
1326 /* T=0: we are done when numRecBytes doesn't
1327 * increment any more and NoProcedureByte
1328 * is set and numRecBytes == bytes sent + 6
1329 * (header bytes + data + 1 for sw2)
1330 * except when the card replies an error
1331 * which means, no data will be sent back.
1332 */
1333 else if (dev->proto == 0) {
1334 if ((inb(REG_BUF_ADDR(iobase)) & 0x80)) {
1335 /* no procedure byte received since last read */
1336 DEBUGP(1, dev, "NoProcedure byte set\n");
1337 /* i=0; */
1338 } else {
1339 /* procedure byte received since last read */
1340 DEBUGP(1, dev, "NoProcedure byte unset "
1341 "(reset timeout)\n");
1342 dev->procbyte = inb(REG_FLAGS1(iobase));
1343 DEBUGP(1, dev, "Read procedure byte 0x%.2x\n",
1344 dev->procbyte);
1345 i = 0; /* resettimeout */
1346 }
1347 if (inb(REG_FLAGS0(iobase)) & 0x08) {
1348 DEBUGP(1, dev, "T0Done flag (read reply)\n");
1349 break;
1350 }
1351 }
1352 if (dev->proto)
1353 infolen = inb(REG_FLAGS1(iobase));
1354 }
1355 if (i == 600) {
1356 DEBUGP(1, dev, "timeout waiting for numRecBytes\n");
1357 rc = -EIO;
1358 goto release_io;
1359 } else {
1360 if (dev->proto == 0) {
1361 DEBUGP(1, dev, "Wait for T0Done bit to be set\n");
1362 for (i = 0; i < 1000; i++) {
1363 if (inb(REG_FLAGS0(iobase)) & 0x08)
1364 break;
1365 msleep_interruptible(10);
1366 }
1367 if (i == 1000) {
1368 DEBUGP(1, dev, "timeout waiting for T0Done\n");
1369 rc = -EIO;
1370 goto release_io;
1371 }
1372
1373 dev->procbyte = inb(REG_FLAGS1(iobase));
1374 DEBUGP(4, dev, "Read procedure byte 0x%.2x\n",
1375 dev->procbyte);
1376
1377 io_read_num_rec_bytes(iobase, &dev->rlen);
1378 DEBUGP(4, dev, "Read NumRecBytes = %i\n", dev->rlen);
1379
1380 }
1381 }
1382 /* T=1: read offset=zero, T=0: read offset=after challenge */
1383 dev->rpos = dev->proto ? 0 : nr == 4 ? 5 : nr > dev->rlen ? 5 : nr;
1384 DEBUGP(4, dev, "dev->rlen = %i, dev->rpos = %i, nr = %i\n",
1385 dev->rlen, dev->rpos, nr);
1386
1387release_io:
1388 DEBUGP(4, dev, "Reset SM\n");
1389 xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */
1390
1391 if (rc < 0) {
1392 DEBUGP(4, dev, "Write failed but clear T_Active\n");
1393 dev->flags1 &= 0xdf;
1394 xoutb(dev->flags1, REG_FLAGS1(iobase));
1395 }
1396
1397 clear_bit(LOCK_IO, &dev->flags);
1398 wake_up_interruptible(&dev->ioq);
1399 wake_up_interruptible(&dev->readq); /* tell read we have data */
1400
1401 /* ITSEC E2: clear write buffer */
1402 memset((char *)dev->sbuf, 0, 512);
1403
1404 /* return error or actually written bytes */
1405 DEBUGP(2, dev, "<- cmm_write\n");
1406 return rc < 0 ? rc : nr;
1407}
1408
1409static void start_monitor(struct cm4000_dev *dev)
1410{
1411 DEBUGP(3, dev, "-> start_monitor\n");
1412 if (!dev->monitor_running) {
1413 DEBUGP(5, dev, "create, init and add timer\n");
1414 init_timer(&dev->timer);
1415 dev->monitor_running = 1;
1416 dev->timer.expires = jiffies;
1417 dev->timer.data = (unsigned long) dev;
1418 dev->timer.function = monitor_card;
1419 add_timer(&dev->timer);
1420 } else
1421 DEBUGP(5, dev, "monitor already running\n");
1422 DEBUGP(3, dev, "<- start_monitor\n");
1423}
1424
1425static void stop_monitor(struct cm4000_dev *dev)
1426{
1427 DEBUGP(3, dev, "-> stop_monitor\n");
1428 if (dev->monitor_running) {
1429 DEBUGP(5, dev, "stopping monitor\n");
1430 terminate_monitor(dev);
1431 /* reset monitor SM */
1432 clear_bit(IS_ATR_VALID, &dev->flags);
1433 clear_bit(IS_ATR_PRESENT, &dev->flags);
1434 } else
1435 DEBUGP(5, dev, "monitor already stopped\n");
1436 DEBUGP(3, dev, "<- stop_monitor\n");
1437}
1438
1439static int cmm_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
1440 unsigned long arg)
1441{
1442 struct cm4000_dev *dev = filp->private_data;
1443 ioaddr_t iobase = dev->link.io.BasePort1;
1444 dev_link_t *link;
1445 int size;
1446 int rc;
1447#ifdef PCMCIA_DEBUG
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",
1454 };
1455#endif
1456 DEBUGP(3, dev, "cmm_ioctl(device=%d.%d) %s\n", imajor(inode),
1457 iminor(inode), ioctl_names[_IOC_NR(cmd)]);
1458
1459 link = dev_table[iminor(inode)];
1460 if (!(DEV_OK(link))) {
1461 DEBUGP(4, dev, "DEV_OK false\n");
1462 return -ENODEV;
1463 }
1464
1465 if (test_bit(IS_CMM_ABSENT, &dev->flags)) {
1466 DEBUGP(4, dev, "CMM_ABSENT flag set\n");
1467 return -ENODEV;
1468 }
1469
1470 if (_IOC_TYPE(cmd) != CM_IOC_MAGIC) {
1471 DEBUGP(4, dev, "ioctype mismatch\n");
1472 return -EINVAL;
1473 }
1474 if (_IOC_NR(cmd) > CM_IOC_MAXNR) {
1475 DEBUGP(4, dev, "iocnr mismatch\n");
1476 return -EINVAL;
1477 }
1478 size = _IOC_SIZE(cmd);
1479 rc = 0;
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);
1482
1483 if (_IOC_DIR(cmd) & _IOC_READ) {
1484 if (!access_ok(VERIFY_WRITE, (void *)arg, size))
1485 return -EFAULT;
1486 }
1487 if (_IOC_DIR(cmd) & _IOC_WRITE) {
1488 if (!access_ok(VERIFY_READ, (void *)arg, size))
1489 return -EFAULT;
1490 }
1491
1492 switch (cmd) {
1493 case CM_IOCGSTATUS:
1494 DEBUGP(4, dev, " ... in CM_IOCGSTATUS\n");
1495 {
1496 int status;
1497
1498 /* clear other bits, but leave inserted & powered as
1499 * they are */
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)))
1510 return -EFAULT;
1511 }
1512 return 0;
1513 case CM_IOCGATR:
1514 DEBUGP(4, dev, "... in CM_IOCGATR\n");
1515 {
1516 struct atreq *atreq = (struct atreq *) arg;
1517 int tmp;
1518 /* allow nonblocking io and being interrupted */
1519 if (wait_event_interruptible
1520 (dev->atrq,
1521 ((filp->f_flags & O_NONBLOCK)
1522 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags)
1523 != 0)))) {
1524 if (filp->f_flags & O_NONBLOCK)
1525 return -EAGAIN;
1526 return -ERESTARTSYS;
1527 }
1528
1529 if (test_bit(IS_ATR_VALID, &dev->flags) == 0) {
1530 tmp = -1;
1531 if (copy_to_user(&(atreq->atr_len), &tmp,
1532 sizeof(int)))
1533 return -EFAULT;
1534 } else {
1535 if (copy_to_user(atreq->atr, dev->atr,
1536 dev->atr_len))
1537 return -EFAULT;
1538
1539 tmp = dev->atr_len;
1540 if (copy_to_user(&(atreq->atr_len), &tmp, sizeof(int)))
1541 return -EFAULT;
1542 }
1543 return 0;
1544 }
1545 case CM_IOCARDOFF:
1546
1547#ifdef PCMCIA_DEBUG
1548 DEBUGP(4, dev, "... in CM_IOCARDOFF\n");
1549 if (dev->flags0 & 0x01) {
1550 DEBUGP(4, dev, " Card inserted\n");
1551 } else {
1552 DEBUGP(2, dev, " No card inserted\n");
1553 }
1554 if (dev->flags0 & 0x02) {
1555 DEBUGP(4, dev, " Card powered\n");
1556 } else {
1557 DEBUGP(2, dev, " Card not powered\n");
1558 }
1559#endif
1560
1561 /* is a card inserted and powered? */
1562 if ((dev->flags0 & 0x01) && (dev->flags0 & 0x02)) {
1563
1564 /* get IO lock */
1565 if (wait_event_interruptible
1566 (dev->ioq,
1567 ((filp->f_flags & O_NONBLOCK)
1568 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags)
1569 == 0)))) {
1570 if (filp->f_flags & O_NONBLOCK)
1571 return -EAGAIN;
1572 return -ERESTARTSYS;
1573 }
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
1582 (dev->atrq,
1583 ((filp->f_flags & O_NONBLOCK)
1584 || (test_bit(IS_ATR_VALID, (void *)&dev->flags) !=
1585 0)))) {
1586 if (filp->f_flags & O_NONBLOCK)
1587 return -EAGAIN;
1588 return -ERESTARTSYS;
1589 }
1590 }
1591 /* release lock */
1592 clear_bit(LOCK_IO, &dev->flags);
1593 wake_up_interruptible(&dev->ioq);
1594
1595 return 0;
1596 case CM_IOCSPTS:
1597 {
1598 struct ptsreq krnptsreq;
1599
1600 if (copy_from_user(&krnptsreq, (struct ptsreq *) arg,
1601 sizeof(struct ptsreq)))
1602 return -EFAULT;
1603
1604 rc = 0;
1605 DEBUGP(4, dev, "... in CM_IOCSPTS\n");
1606 /* wait for ATR to get valid */
1607 if (wait_event_interruptible
1608 (dev->atrq,
1609 ((filp->f_flags & O_NONBLOCK)
1610 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags)
1611 != 0)))) {
1612 if (filp->f_flags & O_NONBLOCK)
1613 return -EAGAIN;
1614 return -ERESTARTSYS;
1615 }
1616 /* get IO lock */
1617 if (wait_event_interruptible
1618 (dev->ioq,
1619 ((filp->f_flags & O_NONBLOCK)
1620 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags)
1621 == 0)))) {
1622 if (filp->f_flags & O_NONBLOCK)
1623 return -EAGAIN;
1624 return -ERESTARTSYS;
1625 }
1626
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);
1631 }
1632 /* release lock */
1633 clear_bit(LOCK_IO, &dev->flags);
1634 wake_up_interruptible(&dev->ioq);
1635
1636 }
1637 return rc;
1638#ifdef PCMCIA_DEBUG
1639 case CM_IOSDBGLVL: /* set debug log level */
1640 {
1641 int old_pc_debug = 0;
1642
1643 old_pc_debug = pc_debug;
1644 if (copy_from_user(&pc_debug, (int *)arg, sizeof(int)))
1645 return -EFAULT;
1646
1647 if (old_pc_debug != pc_debug)
1648 DEBUGP(0, dev, "Changed debug log level "
1649 "to %i\n", pc_debug);
1650 }
1651 return rc;
1652#endif
1653 default:
1654 DEBUGP(4, dev, "... in default (unknown IOCTL code)\n");
1655 return -EINVAL;
1656 }
1657}
1658
1659static int cmm_open(struct inode *inode, struct file *filp)
1660{
1661 struct cm4000_dev *dev;
1662 dev_link_t *link;
1663 int rc, minor = iminor(inode);
1664
1665 if (minor >= CM4000_MAX_DEV)
1666 return -ENODEV;
1667
1668 link = dev_table[minor];
1669 if (link == NULL || !(DEV_OK(link)))
1670 return -ENODEV;
1671
1672 if (link->open)
1673 return -EBUSY;
1674
1675 dev = link->priv;
1676 filp->private_data = dev;
1677
1678 DEBUGP(2, dev, "-> cmm_open(device=%d.%d process=%s,%d)\n",
1679 imajor(inode), minor, current->comm, current->pid);
1680
1681 /* init device variables, they may be "polluted" after close
1682 * or, the device may never have been closed (i.e. open failed)
1683 */
1684
1685 ZERO_DEV(dev);
1686
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
1691 * inserted)
1692 */
1693 if (filp->f_flags & O_NONBLOCK)
1694 return -EAGAIN;
1695
1696 dev->mdelay = T_50MSEC;
1697
1698 /* start monitoring the cardstatus */
1699 start_monitor(dev);
1700
1701 link->open = 1; /* only one open per device */
1702 rc = 0;
1703
1704 DEBUGP(2, dev, "<- cmm_open\n");
1705 return nonseekable_open(inode, filp);
1706}
1707
1708static int cmm_close(struct inode *inode, struct file *filp)
1709{
1710 struct cm4000_dev *dev;
1711 dev_link_t *link;
1712 int minor = iminor(inode);
1713
1714 if (minor >= CM4000_MAX_DEV)
1715 return -ENODEV;
1716
1717 link = dev_table[minor];
1718 if (link == NULL)
1719 return -ENODEV;
1720
1721 dev = link->priv;
1722
1723 DEBUGP(2, dev, "-> cmm_close(maj/min=%d.%d)\n",
1724 imajor(inode), minor);
1725
1726 stop_monitor(dev);
1727
1728 ZERO_DEV(dev);
1729
1730 link->open = 0; /* only one open per device */
1731 wake_up(&dev->devq); /* socket removed? */
1732
1733 DEBUGP(2, dev, "cmm_close\n");
1734 return 0;
1735}
1736
1737static void cmm_cm4000_release(dev_link_t * link)
1738{
1739 struct cm4000_dev *dev = link->priv;
1740
1741 /* dont terminate the monitor, rather rely on
1742 * close doing that for us.
1743 */
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_ !
1751 */
1752 wait_event(dev->devq, (link->open == 0));
1753 }
1754 /* dev->devq=NULL; this cannot be zeroed earlier */
1755 DEBUGP(3, dev, "<- cmm_cm4000_release\n");
1756 return;
1757}
1758
1759/*==== Interface to PCMCIA Layer =======================================*/
1760
1761static void cm4000_config(dev_link_t * link, int devno)
1762{
1763 client_handle_t handle = link->handle;
1764 struct cm4000_dev *dev;
1765 tuple_t tuple;
1766 cisparse_t parse;
1767 config_info_t conf;
1768 u_char buf[64];
1769 int fail_fn, fail_rc;
1770 int rc;
1771
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;
1778
1779 if ((fail_rc = pcmcia_get_first_tuple(handle, &tuple)) != CS_SUCCESS) {
1780 fail_fn = GetFirstTuple;
1781 goto cs_failed;
1782 }
1783 if ((fail_rc = pcmcia_get_tuple_data(handle, &tuple)) != CS_SUCCESS) {
1784 fail_fn = GetTupleData;
1785 goto cs_failed;
1786 }
1787 if ((fail_rc =
1788 pcmcia_parse_tuple(handle, &tuple, &parse)) != CS_SUCCESS) {
1789 fail_fn = ParseTuple;
1790 goto cs_failed;
1791 }
1792 if ((fail_rc =
1793 pcmcia_get_configuration_info(handle, &conf)) != CS_SUCCESS) {
1794 fail_fn = GetConfigurationInfo;
1795 goto cs_failed;
1796 }
1797
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;
1802
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)) {
1809
1810 rc = pcmcia_get_tuple_data(handle, &tuple);
1811 if (rc != CS_SUCCESS)
1812 continue;
1813 rc = pcmcia_parse_tuple(handle, &tuple, &parse);
1814 if (rc != CS_SUCCESS)
1815 continue;
1816
1817 link->conf.ConfigIndex = parse.cftable_entry.index;
1818
1819 if (!parse.cftable_entry.io.nwin)
1820 continue;
1821
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;
1832
1833 rc = pcmcia_request_io(handle, &link->io);
1834 if (rc == CS_SUCCESS)
1835 break; /* we are done */
1836 }
1837 if (rc != CS_SUCCESS)
1838 goto cs_release;
1839
1840 link->conf.IntType = 00000002;
1841
1842 if ((fail_rc =
1843 pcmcia_request_configuration(handle, &link->conf)) != CS_SUCCESS) {
1844 fail_fn = RequestConfiguration;
1845 goto cs_release;
1846 }
1847
1848 dev = link->priv;
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;
1855
1856 return;
1857
1858cs_failed:
1859 cs_error(handle, fail_fn, fail_rc);
1860cs_release:
1861 cm4000_release(link);
1862
1863 link->state &= ~DEV_CONFIG_PENDING;
1864}
1865
1866static int cm4000_event(event_t event, int priority,
1867 event_callback_args_t *args)
1868{
1869 dev_link_t *link;
1870 struct cm4000_dev *dev;
1871 int devno;
1872
1873 link = args->client_data;
1874 dev = link->priv;
1875
1876 DEBUGP(3, dev, "-> cm4000_event\n");
1877 for (devno = 0; devno < CM4000_MAX_DEV; devno++)
1878 if (dev_table[devno] == link)
1879 break;
1880
1881 if (devno == CM4000_MAX_DEV)
1882 return CS_BAD_ADAPTER;
1883
1884 switch (event) {
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);
1889 break;
1890 case CS_EVENT_CARD_REMOVAL:
1891 DEBUGP(5, dev, "CS_EVENT_CARD_REMOVAL\n");
1892 link->state &= ~DEV_PRESENT;
1893 stop_monitor(dev);
1894 break;
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;
1899 /* fall-through */
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);
1905 }
1906 stop_monitor(dev);
1907 break;
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;
1912 /* fall-through */
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);
1918 }
1919 if (link->open)
1920 start_monitor(dev);
1921 break;
1922 default:
1923 DEBUGP(5, dev, "unknown event %.2x\n", event);
1924 break;
1925 }
1926 DEBUGP(3, dev, "<- cm4000_event\n");
1927 return CS_SUCCESS;
1928}
1929
1930static void cm4000_release(dev_link_t *link)
1931{
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);
1935}
1936
1937static dev_link_t *cm4000_attach(void)
1938{
1939 struct cm4000_dev *dev;
1940 dev_link_t *link;
1941 client_reg_t client_reg;
1942 int i;
1943
1944 for (i = 0; i < CM4000_MAX_DEV; i++)
1945 if (dev_table[i] == NULL)
1946 break;
1947
1948 if (i == CM4000_MAX_DEV) {
1949 printk(KERN_NOTICE MODULE_NAME ": all devices in use\n");
1950 return NULL;
1951 }
1952
1953 /* create a new cm4000_cs device */
1954 dev = kzalloc(sizeof(struct cm4000_dev), GFP_KERNEL);
1955 if (dev == NULL)
1956 return NULL;
1957
1958 link = &dev->link;
1959 link->priv = dev;
1960 link->conf.IntType = INT_MEMORY_AND_IO;
1961 dev_table[i] = link;
1962
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;
1971
1972 i = pcmcia_register_client(&link->handle, &client_reg);
1973 if (i) {
1974 cs_error(link->handle, RegisterClient, i);
1975 cm4000_detach(link);
1976 return NULL;
1977 }
1978
1979 init_waitqueue_head(&dev->devq);
1980 init_waitqueue_head(&dev->ioq);
1981 init_waitqueue_head(&dev->atrq);
1982 init_waitqueue_head(&dev->readq);
1983
1984 return link;
1985}
1986
1987static void cm4000_detach_by_devno(int devno, dev_link_t * link)
1988{
1989 struct cm4000_dev *dev = link->priv;
1990
1991 DEBUGP(3, dev, "-> detach_by_devno(devno=%d)\n", devno);
1992
1993 if (link->state & DEV_CONFIG) {
1994 DEBUGP(5, dev, "device still configured (try to release it)\n");
1995 cm4000_release(link);
1996 }
1997
1998 if (link->handle) {
1999 pcmcia_deregister_client(link->handle);
2000 }
2001
2002 dev_table[devno] = NULL;
2003 kfree(dev);
2004 return;
2005}
2006
2007static void cm4000_detach(dev_link_t * link)
2008{
2009 int i;
2010
2011 /* find device */
2012 for (i = 0; i < CM4000_MAX_DEV; i++)
2013 if (dev_table[i] == link)
2014 break;
2015
2016 if (i == CM4000_MAX_DEV)
2017 return;
2018
2019 cm4000_detach_by_devno(i, link);
2020 return;
2021}
2022
2023static struct file_operations cm4000_fops = {
2024 .owner = THIS_MODULE,
2025 .read = cmm_read,
2026 .write = cmm_write,
2027 .ioctl = cmm_ioctl,
2028 .open = cmm_open,
2029 .release= cmm_close,
2030};
2031
2032static struct pcmcia_device_id cm4000_ids[] = {
2033 PCMCIA_DEVICE_MANF_CARD(0x0223, 0x0002),
2034 PCMCIA_DEVICE_PROD_ID12("CardMan", "4000", 0x2FB368CA, 0xA2BD8C39),
2035 PCMCIA_DEVICE_NULL,
2036};
2037MODULE_DEVICE_TABLE(pcmcia, cm4000_ids);
2038
2039static struct pcmcia_driver cm4000_driver = {
2040 .owner = THIS_MODULE,
2041 .drv = {
2042 .name = "cm4000_cs",
2043 },
2044 .attach = cm4000_attach,
2045 .detach = cm4000_detach,
2046 .event = cm4000_event,
2047 .id_table = cm4000_ids,
2048};
2049
2050static int __init cmm_init(void)
2051{
2052 printk(KERN_INFO "%s\n", version);
2053 pcmcia_register_driver(&cm4000_driver);
2054 major = register_chrdev(0, DEVICE_NAME, &cm4000_fops);
2055 if (major < 0) {
2056 printk(KERN_WARNING MODULE_NAME
2057 ": could not get major number\n");
2058 return -1;
2059 }
2060
2061 return 0;
2062}
2063
2064static void __exit cmm_exit(void)
2065{
2066 int i;
2067
2068 printk(KERN_INFO MODULE_NAME ": unloading\n");
2069 pcmcia_unregister_driver(&cm4000_driver);
2070 for (i = 0; i < CM4000_MAX_DEV; i++)
2071 if (dev_table[i])
2072 cm4000_detach_by_devno(i, dev_table[i]);
2073 unregister_chrdev(major, DEVICE_NAME);
2074};
2075
2076module_init(cmm_init);
2077module_exit(cmm_exit);
2078MODULE_LICENSE("Dual BSD/GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-10 14:33:08 -0500