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Commit | Line | Data |
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c1986ee9 HW |
1 | /* |
2 | * A driver for the PCMCIA Smartcard Reader "Omnikey CardMan Mobile 4000" | |
3 | * | |
4 | * cm4000_cs.c support.linux@omnikey.com | |
5 | * | |
6 | * Tue Oct 23 11:32:43 GMT 2001 herp - cleaned up header files | |
7 | * Sun Jan 20 10:11:15 MET 2002 herp - added modversion header files | |
8 | * Thu Nov 14 16:34:11 GMT 2002 mh - added PPS functionality | |
9 | * Tue Nov 19 16:36:27 GMT 2002 mh - added SUSPEND/RESUME functionailty | |
10 | * Wed Jul 28 12:55:01 CEST 2004 mh - kernel 2.6 adjustments | |
11 | * | |
12 | * current version: 2.4.0gm4 | |
13 | * | |
14 | * (C) 2000,2001,2002,2003,2004 Omnikey AG | |
15 | * | |
67bc6200 | 16 | * (C) 2005-2006 Harald Welte <laforge@gnumonks.org> |
c1986ee9 HW |
17 | * - Adhere to Kernel CodingStyle |
18 | * - Port to 2.6.13 "new" style PCMCIA | |
19 | * - Check for copy_{from,to}_user return values | |
20 | * - Use nonseekable_open() | |
67bc6200 | 21 | * - add class interface for udev device creation |
c1986ee9 HW |
22 | * |
23 | * All rights reserved. Licensed under dual BSD/GPL license. | |
24 | */ | |
25 | ||
c1986ee9 HW |
26 | #include <linux/kernel.h> |
27 | #include <linux/module.h> | |
28 | #include <linux/slab.h> | |
29 | #include <linux/init.h> | |
30 | #include <linux/fs.h> | |
31 | #include <linux/delay.h> | |
884c3d75 | 32 | #include <linux/bitrev.h> |
4cf974c5 AC |
33 | #include <linux/smp_lock.h> |
34 | #include <linux/uaccess.h> | |
35 | #include <linux/io.h> | |
c1986ee9 | 36 | |
c1986ee9 HW |
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 | ||
dd2e5a15 | 47 | #define reader_to_dev(x) (&x->p_dev->dev) |
cbf624f0 DB |
48 | |
49 | /* n (debug level) is ignored */ | |
50 | /* additional debug output may be enabled by re-compiling with | |
51 | * CM4000_DEBUG set */ | |
52 | /* #define CM4000_DEBUG */ | |
53 | #define DEBUGP(n, rdr, x, args...) do { \ | |
54 | dev_dbg(reader_to_dev(rdr), "%s:" x, \ | |
55 | __func__ , ## args); \ | |
c1986ee9 | 56 | } while (0) |
cbf624f0 | 57 | |
67bc6200 | 58 | static char *version = "cm4000_cs.c v2.4.0gm6 - All bugs added by Harald Welte"; |
c1986ee9 HW |
59 | |
60 | #define T_1SEC (HZ) | |
61 | #define T_10MSEC msecs_to_jiffies(10) | |
62 | #define T_20MSEC msecs_to_jiffies(20) | |
63 | #define T_40MSEC msecs_to_jiffies(40) | |
64 | #define T_50MSEC msecs_to_jiffies(50) | |
65 | #define T_100MSEC msecs_to_jiffies(100) | |
66 | #define T_500MSEC msecs_to_jiffies(500) | |
67 | ||
fba395ee | 68 | static void cm4000_release(struct pcmcia_device *link); |
c1986ee9 HW |
69 | |
70 | static int major; /* major number we get from the kernel */ | |
71 | ||
72 | /* note: the first state has to have number 0 always */ | |
73 | ||
74 | #define M_FETCH_ATR 0 | |
75 | #define M_TIMEOUT_WAIT 1 | |
76 | #define M_READ_ATR_LEN 2 | |
77 | #define M_READ_ATR 3 | |
78 | #define M_ATR_PRESENT 4 | |
79 | #define M_BAD_CARD 5 | |
80 | #define M_CARDOFF 6 | |
81 | ||
82 | #define LOCK_IO 0 | |
83 | #define LOCK_MONITOR 1 | |
84 | ||
85 | #define IS_AUTOPPS_ACT 6 | |
86 | #define IS_PROCBYTE_PRESENT 7 | |
87 | #define IS_INVREV 8 | |
88 | #define IS_ANY_T0 9 | |
89 | #define IS_ANY_T1 10 | |
90 | #define IS_ATR_PRESENT 11 | |
91 | #define IS_ATR_VALID 12 | |
92 | #define IS_CMM_ABSENT 13 | |
93 | #define IS_BAD_LENGTH 14 | |
94 | #define IS_BAD_CSUM 15 | |
95 | #define IS_BAD_CARD 16 | |
96 | ||
97 | #define REG_FLAGS0(x) (x + 0) | |
98 | #define REG_FLAGS1(x) (x + 1) | |
99 | #define REG_NUM_BYTES(x) (x + 2) | |
100 | #define REG_BUF_ADDR(x) (x + 3) | |
101 | #define REG_BUF_DATA(x) (x + 4) | |
102 | #define REG_NUM_SEND(x) (x + 5) | |
103 | #define REG_BAUDRATE(x) (x + 6) | |
104 | #define REG_STOPBITS(x) (x + 7) | |
105 | ||
106 | struct cm4000_dev { | |
fd238232 | 107 | struct pcmcia_device *p_dev; |
c1986ee9 HW |
108 | |
109 | unsigned char atr[MAX_ATR]; | |
110 | unsigned char rbuf[512]; | |
111 | unsigned char sbuf[512]; | |
112 | ||
113 | wait_queue_head_t devq; /* when removing cardman must not be | |
114 | zeroed! */ | |
115 | ||
116 | wait_queue_head_t ioq; /* if IO is locked, wait on this Q */ | |
117 | wait_queue_head_t atrq; /* wait for ATR valid */ | |
118 | wait_queue_head_t readq; /* used by write to wake blk.read */ | |
119 | ||
120 | /* warning: do not move this fields. | |
121 | * initialising to zero depends on it - see ZERO_DEV below. */ | |
122 | unsigned char atr_csum; | |
123 | unsigned char atr_len_retry; | |
124 | unsigned short atr_len; | |
125 | unsigned short rlen; /* bytes avail. after write */ | |
126 | unsigned short rpos; /* latest read pos. write zeroes */ | |
127 | unsigned char procbyte; /* T=0 procedure byte */ | |
128 | unsigned char mstate; /* state of card monitor */ | |
129 | unsigned char cwarn; /* slow down warning */ | |
130 | unsigned char flags0; /* cardman IO-flags 0 */ | |
131 | unsigned char flags1; /* cardman IO-flags 1 */ | |
132 | unsigned int mdelay; /* variable monitor speeds, in jiffies */ | |
133 | ||
134 | unsigned int baudv; /* baud value for speed */ | |
135 | unsigned char ta1; | |
136 | unsigned char proto; /* T=0, T=1, ... */ | |
137 | unsigned long flags; /* lock+flags (MONITOR,IO,ATR) * for concurrent | |
138 | access */ | |
139 | ||
140 | unsigned char pts[4]; | |
141 | ||
142 | struct timer_list timer; /* used to keep monitor running */ | |
143 | int monitor_running; | |
144 | }; | |
145 | ||
146 | #define ZERO_DEV(dev) \ | |
147 | memset(&dev->atr_csum,0, \ | |
148 | sizeof(struct cm4000_dev) - \ | |
a2bcce8e | 149 | offsetof(struct cm4000_dev, atr_csum)) |
c1986ee9 | 150 | |
fba395ee | 151 | static struct pcmcia_device *dev_table[CM4000_MAX_DEV]; |
67bc6200 | 152 | static struct class *cmm_class; |
c1986ee9 HW |
153 | |
154 | /* This table doesn't use spaces after the comma between fields and thus | |
155 | * violates CodingStyle. However, I don't really think wrapping it around will | |
156 | * make it any clearer to read -HW */ | |
157 | static unsigned char fi_di_table[10][14] = { | |
158 | /*FI 00 01 02 03 04 05 06 07 08 09 10 11 12 13 */ | |
159 | /*DI */ | |
160 | /* 0 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11}, | |
161 | /* 1 */ {0x01,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x91,0x11,0x11,0x11,0x11}, | |
162 | /* 2 */ {0x02,0x12,0x22,0x32,0x11,0x11,0x11,0x11,0x11,0x92,0xA2,0xB2,0x11,0x11}, | |
163 | /* 3 */ {0x03,0x13,0x23,0x33,0x43,0x53,0x63,0x11,0x11,0x93,0xA3,0xB3,0xC3,0xD3}, | |
164 | /* 4 */ {0x04,0x14,0x24,0x34,0x44,0x54,0x64,0x11,0x11,0x94,0xA4,0xB4,0xC4,0xD4}, | |
165 | /* 5 */ {0x00,0x15,0x25,0x35,0x45,0x55,0x65,0x11,0x11,0x95,0xA5,0xB5,0xC5,0xD5}, | |
166 | /* 6 */ {0x06,0x16,0x26,0x36,0x46,0x56,0x66,0x11,0x11,0x96,0xA6,0xB6,0xC6,0xD6}, | |
167 | /* 7 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11}, | |
168 | /* 8 */ {0x08,0x11,0x28,0x38,0x48,0x58,0x68,0x11,0x11,0x98,0xA8,0xB8,0xC8,0xD8}, | |
169 | /* 9 */ {0x09,0x19,0x29,0x39,0x49,0x59,0x69,0x11,0x11,0x99,0xA9,0xB9,0xC9,0xD9} | |
170 | }; | |
171 | ||
cbf624f0 | 172 | #ifndef CM4000_DEBUG |
c1986ee9 HW |
173 | #define xoutb outb |
174 | #define xinb inb | |
175 | #else | |
176 | static inline void xoutb(unsigned char val, unsigned short port) | |
177 | { | |
cbf624f0 | 178 | pr_debug("outb(val=%.2x,port=%.4x)\n", val, port); |
c1986ee9 HW |
179 | outb(val, port); |
180 | } | |
181 | static inline unsigned char xinb(unsigned short port) | |
182 | { | |
183 | unsigned char val; | |
184 | ||
185 | val = inb(port); | |
cbf624f0 | 186 | pr_debug("%.2x=inb(%.4x)\n", val, port); |
c1986ee9 HW |
187 | |
188 | return val; | |
189 | } | |
190 | #endif | |
191 | ||
884c3d75 AM |
192 | static inline unsigned char invert_revert(unsigned char ch) |
193 | { | |
194 | return bitrev8(~ch); | |
195 | } | |
c1986ee9 HW |
196 | |
197 | static void str_invert_revert(unsigned char *b, int len) | |
198 | { | |
199 | int i; | |
200 | ||
201 | for (i = 0; i < len; i++) | |
884c3d75 | 202 | b[i] = invert_revert(b[i]); |
c1986ee9 HW |
203 | } |
204 | ||
205 | #define ATRLENCK(dev,pos) \ | |
206 | if (pos>=dev->atr_len || pos>=MAX_ATR) \ | |
207 | goto return_0; | |
208 | ||
209 | static unsigned int calc_baudv(unsigned char fidi) | |
210 | { | |
211 | unsigned int wcrcf, wbrcf, fi_rfu, di_rfu; | |
212 | ||
213 | fi_rfu = 372; | |
214 | di_rfu = 1; | |
215 | ||
216 | /* FI */ | |
217 | switch ((fidi >> 4) & 0x0F) { | |
218 | case 0x00: | |
219 | wcrcf = 372; | |
220 | break; | |
221 | case 0x01: | |
222 | wcrcf = 372; | |
223 | break; | |
224 | case 0x02: | |
225 | wcrcf = 558; | |
226 | break; | |
227 | case 0x03: | |
228 | wcrcf = 744; | |
229 | break; | |
230 | case 0x04: | |
231 | wcrcf = 1116; | |
232 | break; | |
233 | case 0x05: | |
234 | wcrcf = 1488; | |
235 | break; | |
236 | case 0x06: | |
237 | wcrcf = 1860; | |
238 | break; | |
239 | case 0x07: | |
240 | wcrcf = fi_rfu; | |
241 | break; | |
242 | case 0x08: | |
243 | wcrcf = fi_rfu; | |
244 | break; | |
245 | case 0x09: | |
246 | wcrcf = 512; | |
247 | break; | |
248 | case 0x0A: | |
249 | wcrcf = 768; | |
250 | break; | |
251 | case 0x0B: | |
252 | wcrcf = 1024; | |
253 | break; | |
254 | case 0x0C: | |
255 | wcrcf = 1536; | |
256 | break; | |
257 | case 0x0D: | |
258 | wcrcf = 2048; | |
259 | break; | |
260 | default: | |
261 | wcrcf = fi_rfu; | |
262 | break; | |
263 | } | |
264 | ||
265 | /* DI */ | |
266 | switch (fidi & 0x0F) { | |
267 | case 0x00: | |
268 | wbrcf = di_rfu; | |
269 | break; | |
270 | case 0x01: | |
271 | wbrcf = 1; | |
272 | break; | |
273 | case 0x02: | |
274 | wbrcf = 2; | |
275 | break; | |
276 | case 0x03: | |
277 | wbrcf = 4; | |
278 | break; | |
279 | case 0x04: | |
280 | wbrcf = 8; | |
281 | break; | |
282 | case 0x05: | |
283 | wbrcf = 16; | |
284 | break; | |
285 | case 0x06: | |
286 | wbrcf = 32; | |
287 | break; | |
288 | case 0x07: | |
289 | wbrcf = di_rfu; | |
290 | break; | |
291 | case 0x08: | |
292 | wbrcf = 12; | |
293 | break; | |
294 | case 0x09: | |
295 | wbrcf = 20; | |
296 | break; | |
297 | default: | |
298 | wbrcf = di_rfu; | |
299 | break; | |
300 | } | |
301 | ||
302 | return (wcrcf / wbrcf); | |
303 | } | |
304 | ||
ecb8a847 OJ |
305 | static unsigned short io_read_num_rec_bytes(unsigned int iobase, |
306 | unsigned short *s) | |
c1986ee9 HW |
307 | { |
308 | unsigned short tmp; | |
309 | ||
310 | tmp = *s = 0; | |
311 | do { | |
312 | *s = tmp; | |
313 | tmp = inb(REG_NUM_BYTES(iobase)) | | |
314 | (inb(REG_FLAGS0(iobase)) & 4 ? 0x100 : 0); | |
315 | } while (tmp != *s); | |
316 | ||
317 | return *s; | |
318 | } | |
319 | ||
320 | static int parse_atr(struct cm4000_dev *dev) | |
321 | { | |
322 | unsigned char any_t1, any_t0; | |
323 | unsigned char ch, ifno; | |
324 | int ix, done; | |
325 | ||
326 | DEBUGP(3, dev, "-> parse_atr: dev->atr_len = %i\n", dev->atr_len); | |
327 | ||
328 | if (dev->atr_len < 3) { | |
329 | DEBUGP(5, dev, "parse_atr: atr_len < 3\n"); | |
330 | return 0; | |
331 | } | |
332 | ||
333 | if (dev->atr[0] == 0x3f) | |
334 | set_bit(IS_INVREV, &dev->flags); | |
335 | else | |
336 | clear_bit(IS_INVREV, &dev->flags); | |
337 | ix = 1; | |
338 | ifno = 1; | |
339 | ch = dev->atr[1]; | |
340 | dev->proto = 0; /* XXX PROTO */ | |
341 | any_t1 = any_t0 = done = 0; | |
342 | dev->ta1 = 0x11; /* defaults to 9600 baud */ | |
343 | do { | |
344 | if (ifno == 1 && (ch & 0x10)) { | |
345 | /* read first interface byte and TA1 is present */ | |
346 | dev->ta1 = dev->atr[2]; | |
347 | DEBUGP(5, dev, "Card says FiDi is 0x%.2x\n", dev->ta1); | |
348 | ifno++; | |
349 | } else if ((ifno == 2) && (ch & 0x10)) { /* TA(2) */ | |
350 | dev->ta1 = 0x11; | |
351 | ifno++; | |
352 | } | |
353 | ||
354 | DEBUGP(5, dev, "Yi=%.2x\n", ch & 0xf0); | |
355 | ix += ((ch & 0x10) >> 4) /* no of int.face chars */ | |
356 | +((ch & 0x20) >> 5) | |
357 | + ((ch & 0x40) >> 6) | |
358 | + ((ch & 0x80) >> 7); | |
359 | /* ATRLENCK(dev,ix); */ | |
360 | if (ch & 0x80) { /* TDi */ | |
361 | ch = dev->atr[ix]; | |
362 | if ((ch & 0x0f)) { | |
363 | any_t1 = 1; | |
364 | DEBUGP(5, dev, "card is capable of T=1\n"); | |
365 | } else { | |
366 | any_t0 = 1; | |
367 | DEBUGP(5, dev, "card is capable of T=0\n"); | |
368 | } | |
369 | } else | |
370 | done = 1; | |
371 | } while (!done); | |
372 | ||
373 | DEBUGP(5, dev, "ix=%d noHist=%d any_t1=%d\n", | |
374 | ix, dev->atr[1] & 15, any_t1); | |
375 | if (ix + 1 + (dev->atr[1] & 0x0f) + any_t1 != dev->atr_len) { | |
376 | DEBUGP(5, dev, "length error\n"); | |
377 | return 0; | |
378 | } | |
379 | if (any_t0) | |
380 | set_bit(IS_ANY_T0, &dev->flags); | |
381 | ||
382 | if (any_t1) { /* compute csum */ | |
383 | dev->atr_csum = 0; | |
384 | #ifdef ATR_CSUM | |
385 | for (i = 1; i < dev->atr_len; i++) | |
386 | dev->atr_csum ^= dev->atr[i]; | |
387 | if (dev->atr_csum) { | |
388 | set_bit(IS_BAD_CSUM, &dev->flags); | |
389 | DEBUGP(5, dev, "bad checksum\n"); | |
390 | goto return_0; | |
391 | } | |
392 | #endif | |
393 | if (any_t0 == 0) | |
394 | dev->proto = 1; /* XXX PROTO */ | |
395 | set_bit(IS_ANY_T1, &dev->flags); | |
396 | } | |
397 | ||
398 | return 1; | |
399 | } | |
400 | ||
401 | struct card_fixup { | |
402 | char atr[12]; | |
403 | u_int8_t atr_len; | |
404 | u_int8_t stopbits; | |
405 | }; | |
406 | ||
407 | static struct card_fixup card_fixups[] = { | |
408 | { /* ACOS */ | |
409 | .atr = { 0x3b, 0xb3, 0x11, 0x00, 0x00, 0x41, 0x01 }, | |
410 | .atr_len = 7, | |
411 | .stopbits = 0x03, | |
412 | }, | |
413 | { /* Motorola */ | |
414 | .atr = {0x3b, 0x76, 0x13, 0x00, 0x00, 0x80, 0x62, 0x07, | |
415 | 0x41, 0x81, 0x81 }, | |
416 | .atr_len = 11, | |
417 | .stopbits = 0x04, | |
418 | }, | |
419 | }; | |
420 | ||
421 | static void set_cardparameter(struct cm4000_dev *dev) | |
422 | { | |
423 | int i; | |
9a017a91 | 424 | unsigned int iobase = dev->p_dev->resource[0]->start; |
c1986ee9 HW |
425 | u_int8_t stopbits = 0x02; /* ISO default */ |
426 | ||
427 | DEBUGP(3, dev, "-> set_cardparameter\n"); | |
428 | ||
429 | dev->flags1 = dev->flags1 | (((dev->baudv - 1) & 0x0100) >> 8); | |
430 | xoutb(dev->flags1, REG_FLAGS1(iobase)); | |
431 | DEBUGP(5, dev, "flags1 = 0x%02x\n", dev->flags1); | |
432 | ||
433 | /* set baudrate */ | |
434 | xoutb((unsigned char)((dev->baudv - 1) & 0xFF), REG_BAUDRATE(iobase)); | |
435 | ||
436 | DEBUGP(5, dev, "baudv = %i -> write 0x%02x\n", dev->baudv, | |
437 | ((dev->baudv - 1) & 0xFF)); | |
438 | ||
439 | /* set stopbits */ | |
440 | for (i = 0; i < ARRAY_SIZE(card_fixups); i++) { | |
441 | if (!memcmp(dev->atr, card_fixups[i].atr, | |
442 | card_fixups[i].atr_len)) | |
443 | stopbits = card_fixups[i].stopbits; | |
444 | } | |
445 | xoutb(stopbits, REG_STOPBITS(iobase)); | |
446 | ||
447 | DEBUGP(3, dev, "<- set_cardparameter\n"); | |
448 | } | |
449 | ||
450 | static int set_protocol(struct cm4000_dev *dev, struct ptsreq *ptsreq) | |
451 | { | |
452 | ||
453 | unsigned long tmp, i; | |
454 | unsigned short num_bytes_read; | |
455 | unsigned char pts_reply[4]; | |
456 | ssize_t rc; | |
9a017a91 | 457 | unsigned int iobase = dev->p_dev->resource[0]->start; |
c1986ee9 HW |
458 | |
459 | rc = 0; | |
460 | ||
461 | DEBUGP(3, dev, "-> set_protocol\n"); | |
462 | DEBUGP(5, dev, "ptsreq->Protocol = 0x%.8x, ptsreq->Flags=0x%.8x, " | |
463 | "ptsreq->pts1=0x%.2x, ptsreq->pts2=0x%.2x, " | |
464 | "ptsreq->pts3=0x%.2x\n", (unsigned int)ptsreq->protocol, | |
465 | (unsigned int)ptsreq->flags, ptsreq->pts1, ptsreq->pts2, | |
466 | ptsreq->pts3); | |
467 | ||
468 | /* Fill PTS structure */ | |
469 | dev->pts[0] = 0xff; | |
470 | dev->pts[1] = 0x00; | |
471 | tmp = ptsreq->protocol; | |
472 | while ((tmp = (tmp >> 1)) > 0) | |
473 | dev->pts[1]++; | |
474 | dev->proto = dev->pts[1]; /* Set new protocol */ | |
475 | dev->pts[1] = (0x01 << 4) | (dev->pts[1]); | |
476 | ||
477 | /* Correct Fi/Di according to CM4000 Fi/Di table */ | |
478 | DEBUGP(5, dev, "Ta(1) from ATR is 0x%.2x\n", dev->ta1); | |
479 | /* set Fi/Di according to ATR TA(1) */ | |
480 | dev->pts[2] = fi_di_table[dev->ta1 & 0x0F][(dev->ta1 >> 4) & 0x0F]; | |
481 | ||
482 | /* Calculate PCK character */ | |
483 | dev->pts[3] = dev->pts[0] ^ dev->pts[1] ^ dev->pts[2]; | |
484 | ||
485 | DEBUGP(5, dev, "pts0=%.2x, pts1=%.2x, pts2=%.2x, pts3=%.2x\n", | |
486 | dev->pts[0], dev->pts[1], dev->pts[2], dev->pts[3]); | |
487 | ||
488 | /* check card convention */ | |
489 | if (test_bit(IS_INVREV, &dev->flags)) | |
490 | str_invert_revert(dev->pts, 4); | |
491 | ||
492 | /* reset SM */ | |
493 | xoutb(0x80, REG_FLAGS0(iobase)); | |
494 | ||
495 | /* Enable access to the message buffer */ | |
496 | DEBUGP(5, dev, "Enable access to the messages buffer\n"); | |
497 | dev->flags1 = 0x20 /* T_Active */ | |
498 | | (test_bit(IS_INVREV, &dev->flags) ? 0x02 : 0x00) /* inv parity */ | |
499 | | ((dev->baudv >> 8) & 0x01); /* MSB-baud */ | |
500 | xoutb(dev->flags1, REG_FLAGS1(iobase)); | |
501 | ||
502 | DEBUGP(5, dev, "Enable message buffer -> flags1 = 0x%.2x\n", | |
503 | dev->flags1); | |
504 | ||
505 | /* write challenge to the buffer */ | |
506 | DEBUGP(5, dev, "Write challenge to buffer: "); | |
507 | for (i = 0; i < 4; i++) { | |
508 | xoutb(i, REG_BUF_ADDR(iobase)); | |
509 | xoutb(dev->pts[i], REG_BUF_DATA(iobase)); /* buf data */ | |
cbf624f0 DB |
510 | #ifdef CM4000_DEBUG |
511 | pr_debug("0x%.2x ", dev->pts[i]); | |
c1986ee9 | 512 | } |
cbf624f0 | 513 | pr_debug("\n"); |
c1986ee9 HW |
514 | #else |
515 | } | |
516 | #endif | |
517 | ||
518 | /* set number of bytes to write */ | |
519 | DEBUGP(5, dev, "Set number of bytes to write\n"); | |
520 | xoutb(0x04, REG_NUM_SEND(iobase)); | |
521 | ||
522 | /* Trigger CARDMAN CONTROLLER */ | |
523 | xoutb(0x50, REG_FLAGS0(iobase)); | |
524 | ||
525 | /* Monitor progress */ | |
526 | /* wait for xmit done */ | |
527 | DEBUGP(5, dev, "Waiting for NumRecBytes getting valid\n"); | |
528 | ||
529 | for (i = 0; i < 100; i++) { | |
530 | if (inb(REG_FLAGS0(iobase)) & 0x08) { | |
531 | DEBUGP(5, dev, "NumRecBytes is valid\n"); | |
532 | break; | |
533 | } | |
534 | mdelay(10); | |
535 | } | |
536 | if (i == 100) { | |
537 | DEBUGP(5, dev, "Timeout waiting for NumRecBytes getting " | |
538 | "valid\n"); | |
539 | rc = -EIO; | |
540 | goto exit_setprotocol; | |
541 | } | |
542 | ||
543 | DEBUGP(5, dev, "Reading NumRecBytes\n"); | |
544 | for (i = 0; i < 100; i++) { | |
545 | io_read_num_rec_bytes(iobase, &num_bytes_read); | |
546 | if (num_bytes_read >= 4) { | |
547 | DEBUGP(2, dev, "NumRecBytes = %i\n", num_bytes_read); | |
548 | break; | |
549 | } | |
550 | mdelay(10); | |
551 | } | |
552 | ||
553 | /* check whether it is a short PTS reply? */ | |
554 | if (num_bytes_read == 3) | |
555 | i = 0; | |
556 | ||
557 | if (i == 100) { | |
558 | DEBUGP(5, dev, "Timeout reading num_bytes_read\n"); | |
559 | rc = -EIO; | |
560 | goto exit_setprotocol; | |
561 | } | |
562 | ||
563 | DEBUGP(5, dev, "Reset the CARDMAN CONTROLLER\n"); | |
564 | xoutb(0x80, REG_FLAGS0(iobase)); | |
565 | ||
566 | /* Read PPS reply */ | |
567 | DEBUGP(5, dev, "Read PPS reply\n"); | |
568 | for (i = 0; i < num_bytes_read; i++) { | |
569 | xoutb(i, REG_BUF_ADDR(iobase)); | |
570 | pts_reply[i] = inb(REG_BUF_DATA(iobase)); | |
571 | } | |
572 | ||
cbf624f0 | 573 | #ifdef CM4000_DEBUG |
c1986ee9 HW |
574 | DEBUGP(2, dev, "PTSreply: "); |
575 | for (i = 0; i < num_bytes_read; i++) { | |
cbf624f0 | 576 | pr_debug("0x%.2x ", pts_reply[i]); |
c1986ee9 | 577 | } |
cbf624f0 DB |
578 | pr_debug("\n"); |
579 | #endif /* CM4000_DEBUG */ | |
c1986ee9 HW |
580 | |
581 | DEBUGP(5, dev, "Clear Tactive in Flags1\n"); | |
582 | xoutb(0x20, REG_FLAGS1(iobase)); | |
583 | ||
584 | /* Compare ptsreq and ptsreply */ | |
585 | if ((dev->pts[0] == pts_reply[0]) && | |
586 | (dev->pts[1] == pts_reply[1]) && | |
587 | (dev->pts[2] == pts_reply[2]) && (dev->pts[3] == pts_reply[3])) { | |
588 | /* setcardparameter according to PPS */ | |
589 | dev->baudv = calc_baudv(dev->pts[2]); | |
590 | set_cardparameter(dev); | |
591 | } else if ((dev->pts[0] == pts_reply[0]) && | |
592 | ((dev->pts[1] & 0xef) == pts_reply[1]) && | |
593 | ((pts_reply[0] ^ pts_reply[1]) == pts_reply[2])) { | |
594 | /* short PTS reply, set card parameter to default values */ | |
595 | dev->baudv = calc_baudv(0x11); | |
596 | set_cardparameter(dev); | |
597 | } else | |
598 | rc = -EIO; | |
599 | ||
600 | exit_setprotocol: | |
601 | DEBUGP(3, dev, "<- set_protocol\n"); | |
602 | return rc; | |
603 | } | |
604 | ||
ecb8a847 | 605 | static int io_detect_cm4000(unsigned int iobase, struct cm4000_dev *dev) |
c1986ee9 HW |
606 | { |
607 | ||
608 | /* note: statemachine is assumed to be reset */ | |
609 | if (inb(REG_FLAGS0(iobase)) & 8) { | |
610 | clear_bit(IS_ATR_VALID, &dev->flags); | |
611 | set_bit(IS_CMM_ABSENT, &dev->flags); | |
612 | return 0; /* detect CMM = 1 -> failure */ | |
613 | } | |
614 | /* xoutb(0x40, REG_FLAGS1(iobase)); detectCMM */ | |
615 | xoutb(dev->flags1 | 0x40, REG_FLAGS1(iobase)); | |
616 | if ((inb(REG_FLAGS0(iobase)) & 8) == 0) { | |
617 | clear_bit(IS_ATR_VALID, &dev->flags); | |
618 | set_bit(IS_CMM_ABSENT, &dev->flags); | |
619 | return 0; /* detect CMM=0 -> failure */ | |
620 | } | |
621 | /* clear detectCMM again by restoring original flags1 */ | |
622 | xoutb(dev->flags1, REG_FLAGS1(iobase)); | |
623 | return 1; | |
624 | } | |
625 | ||
626 | static void terminate_monitor(struct cm4000_dev *dev) | |
627 | { | |
628 | ||
629 | /* tell the monitor to stop and wait until | |
630 | * it terminates. | |
631 | */ | |
632 | DEBUGP(3, dev, "-> terminate_monitor\n"); | |
633 | wait_event_interruptible(dev->devq, | |
634 | test_and_set_bit(LOCK_MONITOR, | |
635 | (void *)&dev->flags)); | |
636 | ||
637 | /* now, LOCK_MONITOR has been set. | |
638 | * allow a last cycle in the monitor. | |
639 | * the monitor will indicate that it has | |
640 | * finished by clearing this bit. | |
641 | */ | |
642 | DEBUGP(5, dev, "Now allow last cycle of monitor!\n"); | |
643 | while (test_bit(LOCK_MONITOR, (void *)&dev->flags)) | |
644 | msleep(25); | |
645 | ||
646 | DEBUGP(5, dev, "Delete timer\n"); | |
647 | del_timer_sync(&dev->timer); | |
cbf624f0 | 648 | #ifdef CM4000_DEBUG |
c1986ee9 HW |
649 | dev->monitor_running = 0; |
650 | #endif | |
651 | ||
652 | DEBUGP(3, dev, "<- terminate_monitor\n"); | |
653 | } | |
654 | ||
655 | /* | |
656 | * monitor the card every 50msec. as a side-effect, retrieve the | |
657 | * atr once a card is inserted. another side-effect of retrieving the | |
658 | * atr is that the card will be powered on, so there is no need to | |
659 | * power on the card explictely from the application: the driver | |
660 | * is already doing that for you. | |
661 | */ | |
662 | ||
663 | static void monitor_card(unsigned long p) | |
664 | { | |
665 | struct cm4000_dev *dev = (struct cm4000_dev *) p; | |
9a017a91 | 666 | unsigned int iobase = dev->p_dev->resource[0]->start; |
c1986ee9 HW |
667 | unsigned short s; |
668 | struct ptsreq ptsreq; | |
669 | int i, atrc; | |
670 | ||
671 | DEBUGP(7, dev, "-> monitor_card\n"); | |
672 | ||
673 | /* if someone has set the lock for us: we're done! */ | |
674 | if (test_and_set_bit(LOCK_MONITOR, &dev->flags)) { | |
675 | DEBUGP(4, dev, "About to stop monitor\n"); | |
676 | /* no */ | |
677 | dev->rlen = | |
678 | dev->rpos = | |
679 | dev->atr_csum = dev->atr_len_retry = dev->cwarn = 0; | |
680 | dev->mstate = M_FETCH_ATR; | |
681 | clear_bit(LOCK_MONITOR, &dev->flags); | |
682 | /* close et al. are sleeping on devq, so wake it */ | |
683 | wake_up_interruptible(&dev->devq); | |
684 | DEBUGP(2, dev, "<- monitor_card (we are done now)\n"); | |
685 | return; | |
686 | } | |
687 | ||
688 | /* try to lock io: if it is already locked, just add another timer */ | |
689 | if (test_and_set_bit(LOCK_IO, (void *)&dev->flags)) { | |
690 | DEBUGP(4, dev, "Couldn't get IO lock\n"); | |
691 | goto return_with_timer; | |
692 | } | |
693 | ||
694 | /* is a card/a reader inserted at all ? */ | |
695 | dev->flags0 = xinb(REG_FLAGS0(iobase)); | |
696 | DEBUGP(7, dev, "dev->flags0 = 0x%2x\n", dev->flags0); | |
697 | DEBUGP(7, dev, "smartcard present: %s\n", | |
698 | dev->flags0 & 1 ? "yes" : "no"); | |
699 | DEBUGP(7, dev, "cardman present: %s\n", | |
700 | dev->flags0 == 0xff ? "no" : "yes"); | |
701 | ||
702 | if ((dev->flags0 & 1) == 0 /* no smartcard inserted */ | |
703 | || dev->flags0 == 0xff) { /* no cardman inserted */ | |
704 | /* no */ | |
705 | dev->rlen = | |
706 | dev->rpos = | |
707 | dev->atr_csum = dev->atr_len_retry = dev->cwarn = 0; | |
708 | dev->mstate = M_FETCH_ATR; | |
709 | ||
710 | dev->flags &= 0x000000ff; /* only keep IO and MONITOR locks */ | |
711 | ||
712 | if (dev->flags0 == 0xff) { | |
713 | DEBUGP(4, dev, "set IS_CMM_ABSENT bit\n"); | |
714 | set_bit(IS_CMM_ABSENT, &dev->flags); | |
715 | } else if (test_bit(IS_CMM_ABSENT, &dev->flags)) { | |
716 | DEBUGP(4, dev, "clear IS_CMM_ABSENT bit " | |
717 | "(card is removed)\n"); | |
718 | clear_bit(IS_CMM_ABSENT, &dev->flags); | |
719 | } | |
720 | ||
721 | goto release_io; | |
722 | } else if ((dev->flags0 & 1) && test_bit(IS_CMM_ABSENT, &dev->flags)) { | |
723 | /* cardman and card present but cardman was absent before | |
724 | * (after suspend with inserted card) */ | |
725 | DEBUGP(4, dev, "clear IS_CMM_ABSENT bit (card is inserted)\n"); | |
726 | clear_bit(IS_CMM_ABSENT, &dev->flags); | |
727 | } | |
728 | ||
729 | if (test_bit(IS_ATR_VALID, &dev->flags) == 1) { | |
730 | DEBUGP(7, dev, "believe ATR is already valid (do nothing)\n"); | |
731 | goto release_io; | |
732 | } | |
733 | ||
734 | switch (dev->mstate) { | |
735 | unsigned char flags0; | |
736 | case M_CARDOFF: | |
737 | DEBUGP(4, dev, "M_CARDOFF\n"); | |
738 | flags0 = inb(REG_FLAGS0(iobase)); | |
739 | if (flags0 & 0x02) { | |
740 | /* wait until Flags0 indicate power is off */ | |
741 | dev->mdelay = T_10MSEC; | |
742 | } else { | |
743 | /* Flags0 indicate power off and no card inserted now; | |
744 | * Reset CARDMAN CONTROLLER */ | |
745 | xoutb(0x80, REG_FLAGS0(iobase)); | |
746 | ||
747 | /* prepare for fetching ATR again: after card off ATR | |
748 | * is read again automatically */ | |
749 | dev->rlen = | |
750 | dev->rpos = | |
751 | dev->atr_csum = | |
752 | dev->atr_len_retry = dev->cwarn = 0; | |
753 | dev->mstate = M_FETCH_ATR; | |
754 | ||
755 | /* minimal gap between CARDOFF and read ATR is 50msec */ | |
756 | dev->mdelay = T_50MSEC; | |
757 | } | |
758 | break; | |
759 | case M_FETCH_ATR: | |
760 | DEBUGP(4, dev, "M_FETCH_ATR\n"); | |
761 | xoutb(0x80, REG_FLAGS0(iobase)); | |
762 | DEBUGP(4, dev, "Reset BAUDV to 9600\n"); | |
763 | dev->baudv = 0x173; /* 9600 */ | |
764 | xoutb(0x02, REG_STOPBITS(iobase)); /* stopbits=2 */ | |
765 | xoutb(0x73, REG_BAUDRATE(iobase)); /* baud value */ | |
766 | xoutb(0x21, REG_FLAGS1(iobase)); /* T_Active=1, baud | |
767 | value */ | |
768 | /* warm start vs. power on: */ | |
769 | xoutb(dev->flags0 & 2 ? 0x46 : 0x44, REG_FLAGS0(iobase)); | |
770 | dev->mdelay = T_40MSEC; | |
771 | dev->mstate = M_TIMEOUT_WAIT; | |
772 | break; | |
773 | case M_TIMEOUT_WAIT: | |
774 | DEBUGP(4, dev, "M_TIMEOUT_WAIT\n"); | |
775 | /* numRecBytes */ | |
776 | io_read_num_rec_bytes(iobase, &dev->atr_len); | |
777 | dev->mdelay = T_10MSEC; | |
778 | dev->mstate = M_READ_ATR_LEN; | |
779 | break; | |
780 | case M_READ_ATR_LEN: | |
781 | DEBUGP(4, dev, "M_READ_ATR_LEN\n"); | |
782 | /* infinite loop possible, since there is no timeout */ | |
783 | ||
784 | #define MAX_ATR_LEN_RETRY 100 | |
785 | ||
786 | if (dev->atr_len == io_read_num_rec_bytes(iobase, &s)) { | |
787 | if (dev->atr_len_retry++ >= MAX_ATR_LEN_RETRY) { /* + XX msec */ | |
788 | dev->mdelay = T_10MSEC; | |
789 | dev->mstate = M_READ_ATR; | |
790 | } | |
791 | } else { | |
792 | dev->atr_len = s; | |
793 | dev->atr_len_retry = 0; /* set new timeout */ | |
794 | } | |
795 | ||
796 | DEBUGP(4, dev, "Current ATR_LEN = %i\n", dev->atr_len); | |
797 | break; | |
798 | case M_READ_ATR: | |
799 | DEBUGP(4, dev, "M_READ_ATR\n"); | |
800 | xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */ | |
801 | for (i = 0; i < dev->atr_len; i++) { | |
802 | xoutb(i, REG_BUF_ADDR(iobase)); | |
803 | dev->atr[i] = inb(REG_BUF_DATA(iobase)); | |
804 | } | |
805 | /* Deactivate T_Active flags */ | |
806 | DEBUGP(4, dev, "Deactivate T_Active flags\n"); | |
807 | dev->flags1 = 0x01; | |
808 | xoutb(dev->flags1, REG_FLAGS1(iobase)); | |
809 | ||
810 | /* atr is present (which doesnt mean it's valid) */ | |
811 | set_bit(IS_ATR_PRESENT, &dev->flags); | |
812 | if (dev->atr[0] == 0x03) | |
813 | str_invert_revert(dev->atr, dev->atr_len); | |
814 | atrc = parse_atr(dev); | |
815 | if (atrc == 0) { /* atr invalid */ | |
816 | dev->mdelay = 0; | |
817 | dev->mstate = M_BAD_CARD; | |
818 | } else { | |
819 | dev->mdelay = T_50MSEC; | |
820 | dev->mstate = M_ATR_PRESENT; | |
821 | set_bit(IS_ATR_VALID, &dev->flags); | |
822 | } | |
823 | ||
824 | if (test_bit(IS_ATR_VALID, &dev->flags) == 1) { | |
825 | DEBUGP(4, dev, "monitor_card: ATR valid\n"); | |
826 | /* if ta1 == 0x11, no PPS necessary (default values) */ | |
827 | /* do not do PPS with multi protocol cards */ | |
828 | if ((test_bit(IS_AUTOPPS_ACT, &dev->flags) == 0) && | |
829 | (dev->ta1 != 0x11) && | |
830 | !(test_bit(IS_ANY_T0, &dev->flags) && | |
831 | test_bit(IS_ANY_T1, &dev->flags))) { | |
832 | DEBUGP(4, dev, "Perform AUTOPPS\n"); | |
833 | set_bit(IS_AUTOPPS_ACT, &dev->flags); | |
834 | ptsreq.protocol = ptsreq.protocol = | |
835 | (0x01 << dev->proto); | |
836 | ptsreq.flags = 0x01; | |
837 | ptsreq.pts1 = 0x00; | |
838 | ptsreq.pts2 = 0x00; | |
839 | ptsreq.pts3 = 0x00; | |
840 | if (set_protocol(dev, &ptsreq) == 0) { | |
841 | DEBUGP(4, dev, "AUTOPPS ret SUCC\n"); | |
842 | clear_bit(IS_AUTOPPS_ACT, &dev->flags); | |
843 | wake_up_interruptible(&dev->atrq); | |
844 | } else { | |
845 | DEBUGP(4, dev, "AUTOPPS failed: " | |
846 | "repower using defaults\n"); | |
847 | /* prepare for repowering */ | |
848 | clear_bit(IS_ATR_PRESENT, &dev->flags); | |
849 | clear_bit(IS_ATR_VALID, &dev->flags); | |
850 | dev->rlen = | |
851 | dev->rpos = | |
852 | dev->atr_csum = | |
853 | dev->atr_len_retry = dev->cwarn = 0; | |
854 | dev->mstate = M_FETCH_ATR; | |
855 | ||
856 | dev->mdelay = T_50MSEC; | |
857 | } | |
858 | } else { | |
859 | /* for cards which use slightly different | |
860 | * params (extra guard time) */ | |
861 | set_cardparameter(dev); | |
862 | if (test_bit(IS_AUTOPPS_ACT, &dev->flags) == 1) | |
863 | DEBUGP(4, dev, "AUTOPPS already active " | |
864 | "2nd try:use default values\n"); | |
865 | if (dev->ta1 == 0x11) | |
866 | DEBUGP(4, dev, "No AUTOPPS necessary " | |
867 | "TA(1)==0x11\n"); | |
868 | if (test_bit(IS_ANY_T0, &dev->flags) | |
869 | && test_bit(IS_ANY_T1, &dev->flags)) | |
870 | DEBUGP(4, dev, "Do NOT perform AUTOPPS " | |
871 | "with multiprotocol cards\n"); | |
872 | clear_bit(IS_AUTOPPS_ACT, &dev->flags); | |
873 | wake_up_interruptible(&dev->atrq); | |
874 | } | |
875 | } else { | |
876 | DEBUGP(4, dev, "ATR invalid\n"); | |
877 | wake_up_interruptible(&dev->atrq); | |
878 | } | |
879 | break; | |
880 | case M_BAD_CARD: | |
881 | DEBUGP(4, dev, "M_BAD_CARD\n"); | |
882 | /* slow down warning, but prompt immediately after insertion */ | |
883 | if (dev->cwarn == 0 || dev->cwarn == 10) { | |
884 | set_bit(IS_BAD_CARD, &dev->flags); | |
ded6a1a3 | 885 | dev_warn(&dev->p_dev->dev, MODULE_NAME ": "); |
c1986ee9 HW |
886 | if (test_bit(IS_BAD_CSUM, &dev->flags)) { |
887 | DEBUGP(4, dev, "ATR checksum (0x%.2x, should " | |
888 | "be zero) failed\n", dev->atr_csum); | |
889 | } | |
cbf624f0 | 890 | #ifdef CM4000_DEBUG |
c1986ee9 HW |
891 | else if (test_bit(IS_BAD_LENGTH, &dev->flags)) { |
892 | DEBUGP(4, dev, "ATR length error\n"); | |
893 | } else { | |
894 | DEBUGP(4, dev, "card damaged or wrong way " | |
895 | "inserted\n"); | |
896 | } | |
897 | #endif | |
898 | dev->cwarn = 0; | |
899 | wake_up_interruptible(&dev->atrq); /* wake open */ | |
900 | } | |
901 | dev->cwarn++; | |
902 | dev->mdelay = T_100MSEC; | |
903 | dev->mstate = M_FETCH_ATR; | |
904 | break; | |
905 | default: | |
906 | DEBUGP(7, dev, "Unknown action\n"); | |
907 | break; /* nothing */ | |
908 | } | |
909 | ||
910 | release_io: | |
911 | DEBUGP(7, dev, "release_io\n"); | |
912 | clear_bit(LOCK_IO, &dev->flags); | |
913 | wake_up_interruptible(&dev->ioq); /* whoever needs IO */ | |
914 | ||
915 | return_with_timer: | |
916 | DEBUGP(7, dev, "<- monitor_card (returns with timer)\n"); | |
40565f19 | 917 | mod_timer(&dev->timer, jiffies + dev->mdelay); |
c1986ee9 HW |
918 | clear_bit(LOCK_MONITOR, &dev->flags); |
919 | } | |
920 | ||
921 | /* Interface to userland (file_operations) */ | |
922 | ||
923 | static ssize_t cmm_read(struct file *filp, __user char *buf, size_t count, | |
924 | loff_t *ppos) | |
925 | { | |
926 | struct cm4000_dev *dev = filp->private_data; | |
9a017a91 | 927 | unsigned int iobase = dev->p_dev->resource[0]->start; |
c1986ee9 HW |
928 | ssize_t rc; |
929 | int i, j, k; | |
930 | ||
931 | DEBUGP(2, dev, "-> cmm_read(%s,%d)\n", current->comm, current->pid); | |
932 | ||
933 | if (count == 0) /* according to manpage */ | |
934 | return 0; | |
935 | ||
e2d40963 | 936 | if (!pcmcia_dev_present(dev->p_dev) || /* device removed */ |
c1986ee9 HW |
937 | test_bit(IS_CMM_ABSENT, &dev->flags)) |
938 | return -ENODEV; | |
939 | ||
940 | if (test_bit(IS_BAD_CSUM, &dev->flags)) | |
941 | return -EIO; | |
942 | ||
943 | /* also see the note about this in cmm_write */ | |
944 | if (wait_event_interruptible | |
945 | (dev->atrq, | |
946 | ((filp->f_flags & O_NONBLOCK) | |
947 | || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) { | |
948 | if (filp->f_flags & O_NONBLOCK) | |
949 | return -EAGAIN; | |
950 | return -ERESTARTSYS; | |
951 | } | |
952 | ||
953 | if (test_bit(IS_ATR_VALID, &dev->flags) == 0) | |
954 | return -EIO; | |
955 | ||
956 | /* this one implements blocking IO */ | |
957 | if (wait_event_interruptible | |
958 | (dev->readq, | |
959 | ((filp->f_flags & O_NONBLOCK) || (dev->rpos < dev->rlen)))) { | |
960 | if (filp->f_flags & O_NONBLOCK) | |
961 | return -EAGAIN; | |
962 | return -ERESTARTSYS; | |
963 | } | |
964 | ||
965 | /* lock io */ | |
966 | if (wait_event_interruptible | |
967 | (dev->ioq, | |
968 | ((filp->f_flags & O_NONBLOCK) | |
969 | || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) { | |
970 | if (filp->f_flags & O_NONBLOCK) | |
971 | return -EAGAIN; | |
972 | return -ERESTARTSYS; | |
973 | } | |
974 | ||
975 | rc = 0; | |
976 | dev->flags0 = inb(REG_FLAGS0(iobase)); | |
977 | if ((dev->flags0 & 1) == 0 /* no smartcard inserted */ | |
978 | || dev->flags0 == 0xff) { /* no cardman inserted */ | |
979 | clear_bit(IS_ATR_VALID, &dev->flags); | |
980 | if (dev->flags0 & 1) { | |
981 | set_bit(IS_CMM_ABSENT, &dev->flags); | |
982 | rc = -ENODEV; | |
983 | } | |
984 | rc = -EIO; | |
985 | goto release_io; | |
986 | } | |
987 | ||
988 | DEBUGP(4, dev, "begin read answer\n"); | |
989 | j = min(count, (size_t)(dev->rlen - dev->rpos)); | |
990 | k = dev->rpos; | |
991 | if (k + j > 255) | |
992 | j = 256 - k; | |
993 | DEBUGP(4, dev, "read1 j=%d\n", j); | |
994 | for (i = 0; i < j; i++) { | |
995 | xoutb(k++, REG_BUF_ADDR(iobase)); | |
996 | dev->rbuf[i] = xinb(REG_BUF_DATA(iobase)); | |
997 | } | |
998 | j = min(count, (size_t)(dev->rlen - dev->rpos)); | |
999 | if (k + j > 255) { | |
1000 | DEBUGP(4, dev, "read2 j=%d\n", j); | |
1001 | dev->flags1 |= 0x10; /* MSB buf addr set */ | |
1002 | xoutb(dev->flags1, REG_FLAGS1(iobase)); | |
1003 | for (; i < j; i++) { | |
1004 | xoutb(k++, REG_BUF_ADDR(iobase)); | |
1005 | dev->rbuf[i] = xinb(REG_BUF_DATA(iobase)); | |
1006 | } | |
1007 | } | |
1008 | ||
470967dc | 1009 | if (dev->proto == 0 && count > dev->rlen - dev->rpos && i) { |
c1986ee9 HW |
1010 | DEBUGP(4, dev, "T=0 and count > buffer\n"); |
1011 | dev->rbuf[i] = dev->rbuf[i - 1]; | |
1012 | dev->rbuf[i - 1] = dev->procbyte; | |
1013 | j++; | |
1014 | } | |
1015 | count = j; | |
1016 | ||
1017 | dev->rpos = dev->rlen + 1; | |
1018 | ||
1019 | /* Clear T1Active */ | |
1020 | DEBUGP(4, dev, "Clear T1Active\n"); | |
1021 | dev->flags1 &= 0xdf; | |
1022 | xoutb(dev->flags1, REG_FLAGS1(iobase)); | |
1023 | ||
1024 | xoutb(0, REG_FLAGS1(iobase)); /* clear detectCMM */ | |
1025 | /* last check before exit */ | |
07a71415 DC |
1026 | if (!io_detect_cm4000(iobase, dev)) { |
1027 | rc = -ENODEV; | |
1028 | goto release_io; | |
1029 | } | |
c1986ee9 HW |
1030 | |
1031 | if (test_bit(IS_INVREV, &dev->flags) && count > 0) | |
1032 | str_invert_revert(dev->rbuf, count); | |
1033 | ||
1034 | if (copy_to_user(buf, dev->rbuf, count)) | |
07a71415 | 1035 | rc = -EFAULT; |
c1986ee9 HW |
1036 | |
1037 | release_io: | |
1038 | clear_bit(LOCK_IO, &dev->flags); | |
1039 | wake_up_interruptible(&dev->ioq); | |
1040 | ||
1041 | DEBUGP(2, dev, "<- cmm_read returns: rc = %Zi\n", | |
1042 | (rc < 0 ? rc : count)); | |
1043 | return rc < 0 ? rc : count; | |
1044 | } | |
1045 | ||
1046 | static ssize_t cmm_write(struct file *filp, const char __user *buf, | |
1047 | size_t count, loff_t *ppos) | |
1048 | { | |
c6be9c5a | 1049 | struct cm4000_dev *dev = filp->private_data; |
9a017a91 | 1050 | unsigned int iobase = dev->p_dev->resource[0]->start; |
c1986ee9 HW |
1051 | unsigned short s; |
1052 | unsigned char tmp; | |
1053 | unsigned char infolen; | |
1054 | unsigned char sendT0; | |
1055 | unsigned short nsend; | |
1056 | unsigned short nr; | |
1057 | ssize_t rc; | |
1058 | int i; | |
1059 | ||
1060 | DEBUGP(2, dev, "-> cmm_write(%s,%d)\n", current->comm, current->pid); | |
1061 | ||
1062 | if (count == 0) /* according to manpage */ | |
1063 | return 0; | |
1064 | ||
1065 | if (dev->proto == 0 && count < 4) { | |
1066 | /* T0 must have at least 4 bytes */ | |
1067 | DEBUGP(4, dev, "T0 short write\n"); | |
1068 | return -EIO; | |
1069 | } | |
1070 | ||
1071 | nr = count & 0x1ff; /* max bytes to write */ | |
1072 | ||
1073 | sendT0 = dev->proto ? 0 : nr > 5 ? 0x08 : 0; | |
1074 | ||
e2d40963 | 1075 | if (!pcmcia_dev_present(dev->p_dev) || /* device removed */ |
c1986ee9 HW |
1076 | test_bit(IS_CMM_ABSENT, &dev->flags)) |
1077 | return -ENODEV; | |
1078 | ||
1079 | if (test_bit(IS_BAD_CSUM, &dev->flags)) { | |
1080 | DEBUGP(4, dev, "bad csum\n"); | |
1081 | return -EIO; | |
1082 | } | |
1083 | ||
1084 | /* | |
1085 | * wait for atr to become valid. | |
1086 | * note: it is important to lock this code. if we dont, the monitor | |
59c51591 | 1087 | * could be run between test_bit and the call to sleep on the |
c1986ee9 HW |
1088 | * atr-queue. if *then* the monitor detects atr valid, it will wake up |
1089 | * any process on the atr-queue, *but* since we have been interrupted, | |
1090 | * we do not yet sleep on this queue. this would result in a missed | |
1091 | * wake_up and the calling process would sleep forever (until | |
1092 | * interrupted). also, do *not* restore_flags before sleep_on, because | |
1093 | * this could result in the same situation! | |
1094 | */ | |
1095 | if (wait_event_interruptible | |
1096 | (dev->atrq, | |
1097 | ((filp->f_flags & O_NONBLOCK) | |
1098 | || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) { | |
1099 | if (filp->f_flags & O_NONBLOCK) | |
1100 | return -EAGAIN; | |
1101 | return -ERESTARTSYS; | |
1102 | } | |
1103 | ||
1104 | if (test_bit(IS_ATR_VALID, &dev->flags) == 0) { /* invalid atr */ | |
1105 | DEBUGP(4, dev, "invalid ATR\n"); | |
1106 | return -EIO; | |
1107 | } | |
1108 | ||
1109 | /* lock io */ | |
1110 | if (wait_event_interruptible | |
1111 | (dev->ioq, | |
1112 | ((filp->f_flags & O_NONBLOCK) | |
1113 | || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) { | |
1114 | if (filp->f_flags & O_NONBLOCK) | |
1115 | return -EAGAIN; | |
1116 | return -ERESTARTSYS; | |
1117 | } | |
1118 | ||
1119 | if (copy_from_user(dev->sbuf, buf, ((count > 512) ? 512 : count))) | |
1120 | return -EFAULT; | |
1121 | ||
1122 | rc = 0; | |
1123 | dev->flags0 = inb(REG_FLAGS0(iobase)); | |
1124 | if ((dev->flags0 & 1) == 0 /* no smartcard inserted */ | |
1125 | || dev->flags0 == 0xff) { /* no cardman inserted */ | |
1126 | clear_bit(IS_ATR_VALID, &dev->flags); | |
1127 | if (dev->flags0 & 1) { | |
1128 | set_bit(IS_CMM_ABSENT, &dev->flags); | |
1129 | rc = -ENODEV; | |
1130 | } else { | |
1131 | DEBUGP(4, dev, "IO error\n"); | |
1132 | rc = -EIO; | |
1133 | } | |
1134 | goto release_io; | |
1135 | } | |
1136 | ||
1137 | xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */ | |
1138 | ||
1139 | if (!io_detect_cm4000(iobase, dev)) { | |
1140 | rc = -ENODEV; | |
1141 | goto release_io; | |
1142 | } | |
1143 | ||
1144 | /* reflect T=0 send/read mode in flags1 */ | |
1145 | dev->flags1 |= (sendT0); | |
1146 | ||
1147 | set_cardparameter(dev); | |
1148 | ||
1149 | /* dummy read, reset flag procedure received */ | |
1150 | tmp = inb(REG_FLAGS1(iobase)); | |
1151 | ||
1152 | dev->flags1 = 0x20 /* T_Active */ | |
1153 | | (sendT0) | |
1154 | | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0)/* inverse parity */ | |
1155 | | (((dev->baudv - 1) & 0x0100) >> 8); /* MSB-Baud */ | |
1156 | DEBUGP(1, dev, "set dev->flags1 = 0x%.2x\n", dev->flags1); | |
1157 | xoutb(dev->flags1, REG_FLAGS1(iobase)); | |
1158 | ||
1159 | /* xmit data */ | |
1160 | DEBUGP(4, dev, "Xmit data\n"); | |
1161 | for (i = 0; i < nr; i++) { | |
1162 | if (i >= 256) { | |
1163 | dev->flags1 = 0x20 /* T_Active */ | |
1164 | | (sendT0) /* SendT0 */ | |
1165 | /* inverse parity: */ | |
1166 | | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0) | |
1167 | | (((dev->baudv - 1) & 0x0100) >> 8) /* MSB-Baud */ | |
1168 | | 0x10; /* set address high */ | |
1169 | DEBUGP(4, dev, "dev->flags = 0x%.2x - set address " | |
1170 | "high\n", dev->flags1); | |
1171 | xoutb(dev->flags1, REG_FLAGS1(iobase)); | |
1172 | } | |
1173 | if (test_bit(IS_INVREV, &dev->flags)) { | |
1174 | DEBUGP(4, dev, "Apply inverse convention for 0x%.2x " | |
1175 | "-> 0x%.2x\n", (unsigned char)dev->sbuf[i], | |
1176 | invert_revert(dev->sbuf[i])); | |
1177 | xoutb(i, REG_BUF_ADDR(iobase)); | |
1178 | xoutb(invert_revert(dev->sbuf[i]), | |
1179 | REG_BUF_DATA(iobase)); | |
1180 | } else { | |
1181 | xoutb(i, REG_BUF_ADDR(iobase)); | |
1182 | xoutb(dev->sbuf[i], REG_BUF_DATA(iobase)); | |
1183 | } | |
1184 | } | |
1185 | DEBUGP(4, dev, "Xmit done\n"); | |
1186 | ||
1187 | if (dev->proto == 0) { | |
1188 | /* T=0 proto: 0 byte reply */ | |
1189 | if (nr == 4) { | |
1190 | DEBUGP(4, dev, "T=0 assumes 0 byte reply\n"); | |
1191 | xoutb(i, REG_BUF_ADDR(iobase)); | |
1192 | if (test_bit(IS_INVREV, &dev->flags)) | |
1193 | xoutb(0xff, REG_BUF_DATA(iobase)); | |
1194 | else | |
1195 | xoutb(0x00, REG_BUF_DATA(iobase)); | |
1196 | } | |
1197 | ||
1198 | /* numSendBytes */ | |
1199 | if (sendT0) | |
1200 | nsend = nr; | |
1201 | else { | |
1202 | if (nr == 4) | |
1203 | nsend = 5; | |
1204 | else { | |
1205 | nsend = 5 + (unsigned char)dev->sbuf[4]; | |
1206 | if (dev->sbuf[4] == 0) | |
1207 | nsend += 0x100; | |
1208 | } | |
1209 | } | |
1210 | } else | |
1211 | nsend = nr; | |
1212 | ||
1213 | /* T0: output procedure byte */ | |
1214 | if (test_bit(IS_INVREV, &dev->flags)) { | |
1215 | DEBUGP(4, dev, "T=0 set Procedure byte (inverse-reverse) " | |
1216 | "0x%.2x\n", invert_revert(dev->sbuf[1])); | |
1217 | xoutb(invert_revert(dev->sbuf[1]), REG_NUM_BYTES(iobase)); | |
1218 | } else { | |
1219 | DEBUGP(4, dev, "T=0 set Procedure byte 0x%.2x\n", dev->sbuf[1]); | |
1220 | xoutb(dev->sbuf[1], REG_NUM_BYTES(iobase)); | |
1221 | } | |
1222 | ||
1223 | DEBUGP(1, dev, "set NumSendBytes = 0x%.2x\n", | |
1224 | (unsigned char)(nsend & 0xff)); | |
1225 | xoutb((unsigned char)(nsend & 0xff), REG_NUM_SEND(iobase)); | |
1226 | ||
1227 | DEBUGP(1, dev, "Trigger CARDMAN CONTROLLER (0x%.2x)\n", | |
1228 | 0x40 /* SM_Active */ | |
1229 | | (dev->flags0 & 2 ? 0 : 4) /* power on if needed */ | |
1230 | |(dev->proto ? 0x10 : 0x08) /* T=1/T=0 */ | |
1231 | |(nsend & 0x100) >> 8 /* MSB numSendBytes */ ); | |
1232 | xoutb(0x40 /* SM_Active */ | |
1233 | | (dev->flags0 & 2 ? 0 : 4) /* power on if needed */ | |
1234 | |(dev->proto ? 0x10 : 0x08) /* T=1/T=0 */ | |
1235 | |(nsend & 0x100) >> 8, /* MSB numSendBytes */ | |
1236 | REG_FLAGS0(iobase)); | |
1237 | ||
1238 | /* wait for xmit done */ | |
1239 | if (dev->proto == 1) { | |
1240 | DEBUGP(4, dev, "Wait for xmit done\n"); | |
1241 | for (i = 0; i < 1000; i++) { | |
1242 | if (inb(REG_FLAGS0(iobase)) & 0x08) | |
1243 | break; | |
1244 | msleep_interruptible(10); | |
1245 | } | |
1246 | if (i == 1000) { | |
1247 | DEBUGP(4, dev, "timeout waiting for xmit done\n"); | |
1248 | rc = -EIO; | |
1249 | goto release_io; | |
1250 | } | |
1251 | } | |
1252 | ||
1253 | /* T=1: wait for infoLen */ | |
1254 | ||
1255 | infolen = 0; | |
1256 | if (dev->proto) { | |
1257 | /* wait until infoLen is valid */ | |
1258 | for (i = 0; i < 6000; i++) { /* max waiting time of 1 min */ | |
1259 | io_read_num_rec_bytes(iobase, &s); | |
1260 | if (s >= 3) { | |
1261 | infolen = inb(REG_FLAGS1(iobase)); | |
1262 | DEBUGP(4, dev, "infolen=%d\n", infolen); | |
1263 | break; | |
1264 | } | |
1265 | msleep_interruptible(10); | |
1266 | } | |
1267 | if (i == 6000) { | |
1268 | DEBUGP(4, dev, "timeout waiting for infoLen\n"); | |
1269 | rc = -EIO; | |
1270 | goto release_io; | |
1271 | } | |
1272 | } else | |
1273 | clear_bit(IS_PROCBYTE_PRESENT, &dev->flags); | |
1274 | ||
1275 | /* numRecBytes | bit9 of numRecytes */ | |
1276 | io_read_num_rec_bytes(iobase, &dev->rlen); | |
1277 | for (i = 0; i < 600; i++) { /* max waiting time of 2 sec */ | |
1278 | if (dev->proto) { | |
1279 | if (dev->rlen >= infolen + 4) | |
1280 | break; | |
1281 | } | |
1282 | msleep_interruptible(10); | |
1283 | /* numRecBytes | bit9 of numRecytes */ | |
1284 | io_read_num_rec_bytes(iobase, &s); | |
1285 | if (s > dev->rlen) { | |
1286 | DEBUGP(1, dev, "NumRecBytes inc (reset timeout)\n"); | |
1287 | i = 0; /* reset timeout */ | |
1288 | dev->rlen = s; | |
1289 | } | |
1290 | /* T=0: we are done when numRecBytes doesn't | |
1291 | * increment any more and NoProcedureByte | |
1292 | * is set and numRecBytes == bytes sent + 6 | |
1293 | * (header bytes + data + 1 for sw2) | |
1294 | * except when the card replies an error | |
1295 | * which means, no data will be sent back. | |
1296 | */ | |
1297 | else if (dev->proto == 0) { | |
1298 | if ((inb(REG_BUF_ADDR(iobase)) & 0x80)) { | |
1299 | /* no procedure byte received since last read */ | |
1300 | DEBUGP(1, dev, "NoProcedure byte set\n"); | |
1301 | /* i=0; */ | |
1302 | } else { | |
1303 | /* procedure byte received since last read */ | |
1304 | DEBUGP(1, dev, "NoProcedure byte unset " | |
1305 | "(reset timeout)\n"); | |
1306 | dev->procbyte = inb(REG_FLAGS1(iobase)); | |
1307 | DEBUGP(1, dev, "Read procedure byte 0x%.2x\n", | |
1308 | dev->procbyte); | |
1309 | i = 0; /* resettimeout */ | |
1310 | } | |
1311 | if (inb(REG_FLAGS0(iobase)) & 0x08) { | |
1312 | DEBUGP(1, dev, "T0Done flag (read reply)\n"); | |
1313 | break; | |
1314 | } | |
1315 | } | |
1316 | if (dev->proto) | |
1317 | infolen = inb(REG_FLAGS1(iobase)); | |
1318 | } | |
1319 | if (i == 600) { | |
1320 | DEBUGP(1, dev, "timeout waiting for numRecBytes\n"); | |
1321 | rc = -EIO; | |
1322 | goto release_io; | |
1323 | } else { | |
1324 | if (dev->proto == 0) { | |
1325 | DEBUGP(1, dev, "Wait for T0Done bit to be set\n"); | |
1326 | for (i = 0; i < 1000; i++) { | |
1327 | if (inb(REG_FLAGS0(iobase)) & 0x08) | |
1328 | break; | |
1329 | msleep_interruptible(10); | |
1330 | } | |
1331 | if (i == 1000) { | |
1332 | DEBUGP(1, dev, "timeout waiting for T0Done\n"); | |
1333 | rc = -EIO; | |
1334 | goto release_io; | |
1335 | } | |
1336 | ||
1337 | dev->procbyte = inb(REG_FLAGS1(iobase)); | |
1338 | DEBUGP(4, dev, "Read procedure byte 0x%.2x\n", | |
1339 | dev->procbyte); | |
1340 | ||
1341 | io_read_num_rec_bytes(iobase, &dev->rlen); | |
1342 | DEBUGP(4, dev, "Read NumRecBytes = %i\n", dev->rlen); | |
1343 | ||
1344 | } | |
1345 | } | |
1346 | /* T=1: read offset=zero, T=0: read offset=after challenge */ | |
1347 | dev->rpos = dev->proto ? 0 : nr == 4 ? 5 : nr > dev->rlen ? 5 : nr; | |
1348 | DEBUGP(4, dev, "dev->rlen = %i, dev->rpos = %i, nr = %i\n", | |
1349 | dev->rlen, dev->rpos, nr); | |
1350 | ||
1351 | release_io: | |
1352 | DEBUGP(4, dev, "Reset SM\n"); | |
1353 | xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */ | |
1354 | ||
1355 | if (rc < 0) { | |
1356 | DEBUGP(4, dev, "Write failed but clear T_Active\n"); | |
1357 | dev->flags1 &= 0xdf; | |
1358 | xoutb(dev->flags1, REG_FLAGS1(iobase)); | |
1359 | } | |
1360 | ||
1361 | clear_bit(LOCK_IO, &dev->flags); | |
1362 | wake_up_interruptible(&dev->ioq); | |
1363 | wake_up_interruptible(&dev->readq); /* tell read we have data */ | |
1364 | ||
1365 | /* ITSEC E2: clear write buffer */ | |
1366 | memset((char *)dev->sbuf, 0, 512); | |
1367 | ||
1368 | /* return error or actually written bytes */ | |
1369 | DEBUGP(2, dev, "<- cmm_write\n"); | |
1370 | return rc < 0 ? rc : nr; | |
1371 | } | |
1372 | ||
1373 | static void start_monitor(struct cm4000_dev *dev) | |
1374 | { | |
1375 | DEBUGP(3, dev, "-> start_monitor\n"); | |
1376 | if (!dev->monitor_running) { | |
1377 | DEBUGP(5, dev, "create, init and add timer\n"); | |
40565f19 | 1378 | setup_timer(&dev->timer, monitor_card, (unsigned long)dev); |
c1986ee9 | 1379 | dev->monitor_running = 1; |
40565f19 | 1380 | mod_timer(&dev->timer, jiffies); |
c1986ee9 HW |
1381 | } else |
1382 | DEBUGP(5, dev, "monitor already running\n"); | |
1383 | DEBUGP(3, dev, "<- start_monitor\n"); | |
1384 | } | |
1385 | ||
1386 | static void stop_monitor(struct cm4000_dev *dev) | |
1387 | { | |
1388 | DEBUGP(3, dev, "-> stop_monitor\n"); | |
1389 | if (dev->monitor_running) { | |
1390 | DEBUGP(5, dev, "stopping monitor\n"); | |
1391 | terminate_monitor(dev); | |
1392 | /* reset monitor SM */ | |
1393 | clear_bit(IS_ATR_VALID, &dev->flags); | |
1394 | clear_bit(IS_ATR_PRESENT, &dev->flags); | |
1395 | } else | |
1396 | DEBUGP(5, dev, "monitor already stopped\n"); | |
1397 | DEBUGP(3, dev, "<- stop_monitor\n"); | |
1398 | } | |
1399 | ||
4cf974c5 | 1400 | static long cmm_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) |
c1986ee9 HW |
1401 | { |
1402 | struct cm4000_dev *dev = filp->private_data; | |
9a017a91 | 1403 | unsigned int iobase = dev->p_dev->resource[0]->start; |
4cf974c5 | 1404 | struct inode *inode = filp->f_path.dentry->d_inode; |
fba395ee | 1405 | struct pcmcia_device *link; |
c1986ee9 HW |
1406 | int size; |
1407 | int rc; | |
c4aa02eb | 1408 | void __user *argp = (void __user *)arg; |
cbf624f0 | 1409 | #ifdef CM4000_DEBUG |
c1986ee9 HW |
1410 | char *ioctl_names[CM_IOC_MAXNR + 1] = { |
1411 | [_IOC_NR(CM_IOCGSTATUS)] "CM_IOCGSTATUS", | |
1412 | [_IOC_NR(CM_IOCGATR)] "CM_IOCGATR", | |
1413 | [_IOC_NR(CM_IOCARDOFF)] "CM_IOCARDOFF", | |
1414 | [_IOC_NR(CM_IOCSPTS)] "CM_IOCSPTS", | |
1415 | [_IOC_NR(CM_IOSDBGLVL)] "CM4000_DBGLVL", | |
1416 | }; | |
c1986ee9 HW |
1417 | DEBUGP(3, dev, "cmm_ioctl(device=%d.%d) %s\n", imajor(inode), |
1418 | iminor(inode), ioctl_names[_IOC_NR(cmd)]); | |
cbf624f0 | 1419 | #endif |
c1986ee9 | 1420 | |
4cf974c5 AC |
1421 | lock_kernel(); |
1422 | rc = -ENODEV; | |
c1986ee9 | 1423 | link = dev_table[iminor(inode)]; |
9940ec36 | 1424 | if (!pcmcia_dev_present(link)) { |
c1986ee9 | 1425 | DEBUGP(4, dev, "DEV_OK false\n"); |
4cf974c5 | 1426 | goto out; |
c1986ee9 HW |
1427 | } |
1428 | ||
1429 | if (test_bit(IS_CMM_ABSENT, &dev->flags)) { | |
1430 | DEBUGP(4, dev, "CMM_ABSENT flag set\n"); | |
4cf974c5 | 1431 | goto out; |
c1986ee9 | 1432 | } |
d93c768e | 1433 | rc = -EINVAL; |
c1986ee9 HW |
1434 | |
1435 | if (_IOC_TYPE(cmd) != CM_IOC_MAGIC) { | |
1436 | DEBUGP(4, dev, "ioctype mismatch\n"); | |
4cf974c5 | 1437 | goto out; |
c1986ee9 HW |
1438 | } |
1439 | if (_IOC_NR(cmd) > CM_IOC_MAXNR) { | |
1440 | DEBUGP(4, dev, "iocnr mismatch\n"); | |
4cf974c5 | 1441 | goto out; |
c1986ee9 HW |
1442 | } |
1443 | size = _IOC_SIZE(cmd); | |
4cf974c5 | 1444 | rc = -EFAULT; |
c1986ee9 HW |
1445 | DEBUGP(4, dev, "iocdir=%.4x iocr=%.4x iocw=%.4x iocsize=%d cmd=%.4x\n", |
1446 | _IOC_DIR(cmd), _IOC_READ, _IOC_WRITE, size, cmd); | |
1447 | ||
1448 | if (_IOC_DIR(cmd) & _IOC_READ) { | |
c4aa02eb | 1449 | if (!access_ok(VERIFY_WRITE, argp, size)) |
4cf974c5 | 1450 | goto out; |
c1986ee9 HW |
1451 | } |
1452 | if (_IOC_DIR(cmd) & _IOC_WRITE) { | |
c4aa02eb | 1453 | if (!access_ok(VERIFY_READ, argp, size)) |
4cf974c5 | 1454 | goto out; |
c1986ee9 | 1455 | } |
4cf974c5 | 1456 | rc = 0; |
c1986ee9 HW |
1457 | |
1458 | switch (cmd) { | |
1459 | case CM_IOCGSTATUS: | |
1460 | DEBUGP(4, dev, " ... in CM_IOCGSTATUS\n"); | |
1461 | { | |
1462 | int status; | |
1463 | ||
1464 | /* clear other bits, but leave inserted & powered as | |
1465 | * they are */ | |
1466 | status = dev->flags0 & 3; | |
1467 | if (test_bit(IS_ATR_PRESENT, &dev->flags)) | |
1468 | status |= CM_ATR_PRESENT; | |
1469 | if (test_bit(IS_ATR_VALID, &dev->flags)) | |
1470 | status |= CM_ATR_VALID; | |
1471 | if (test_bit(IS_CMM_ABSENT, &dev->flags)) | |
1472 | status |= CM_NO_READER; | |
1473 | if (test_bit(IS_BAD_CARD, &dev->flags)) | |
1474 | status |= CM_BAD_CARD; | |
c4aa02eb | 1475 | if (copy_to_user(argp, &status, sizeof(int))) |
4cf974c5 | 1476 | rc = -EFAULT; |
c1986ee9 | 1477 | } |
4cf974c5 | 1478 | break; |
c1986ee9 HW |
1479 | case CM_IOCGATR: |
1480 | DEBUGP(4, dev, "... in CM_IOCGATR\n"); | |
1481 | { | |
c4aa02eb | 1482 | struct atreq __user *atreq = argp; |
c1986ee9 HW |
1483 | int tmp; |
1484 | /* allow nonblocking io and being interrupted */ | |
1485 | if (wait_event_interruptible | |
1486 | (dev->atrq, | |
1487 | ((filp->f_flags & O_NONBLOCK) | |
1488 | || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) | |
1489 | != 0)))) { | |
1490 | if (filp->f_flags & O_NONBLOCK) | |
4cf974c5 AC |
1491 | rc = -EAGAIN; |
1492 | else | |
1493 | rc = -ERESTARTSYS; | |
1494 | break; | |
c1986ee9 HW |
1495 | } |
1496 | ||
4cf974c5 | 1497 | rc = -EFAULT; |
c1986ee9 HW |
1498 | if (test_bit(IS_ATR_VALID, &dev->flags) == 0) { |
1499 | tmp = -1; | |
1500 | if (copy_to_user(&(atreq->atr_len), &tmp, | |
1501 | sizeof(int))) | |
4cf974c5 | 1502 | break; |
c1986ee9 HW |
1503 | } else { |
1504 | if (copy_to_user(atreq->atr, dev->atr, | |
1505 | dev->atr_len)) | |
4cf974c5 | 1506 | break; |
c1986ee9 HW |
1507 | |
1508 | tmp = dev->atr_len; | |
1509 | if (copy_to_user(&(atreq->atr_len), &tmp, sizeof(int))) | |
4cf974c5 | 1510 | break; |
c1986ee9 | 1511 | } |
4cf974c5 AC |
1512 | rc = 0; |
1513 | break; | |
c1986ee9 HW |
1514 | } |
1515 | case CM_IOCARDOFF: | |
1516 | ||
cbf624f0 | 1517 | #ifdef CM4000_DEBUG |
c1986ee9 HW |
1518 | DEBUGP(4, dev, "... in CM_IOCARDOFF\n"); |
1519 | if (dev->flags0 & 0x01) { | |
1520 | DEBUGP(4, dev, " Card inserted\n"); | |
1521 | } else { | |
1522 | DEBUGP(2, dev, " No card inserted\n"); | |
1523 | } | |
1524 | if (dev->flags0 & 0x02) { | |
1525 | DEBUGP(4, dev, " Card powered\n"); | |
1526 | } else { | |
1527 | DEBUGP(2, dev, " Card not powered\n"); | |
1528 | } | |
1529 | #endif | |
1530 | ||
1531 | /* is a card inserted and powered? */ | |
1532 | if ((dev->flags0 & 0x01) && (dev->flags0 & 0x02)) { | |
1533 | ||
1534 | /* get IO lock */ | |
1535 | if (wait_event_interruptible | |
1536 | (dev->ioq, | |
1537 | ((filp->f_flags & O_NONBLOCK) | |
1538 | || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) | |
1539 | == 0)))) { | |
1540 | if (filp->f_flags & O_NONBLOCK) | |
4cf974c5 AC |
1541 | rc = -EAGAIN; |
1542 | else | |
1543 | rc = -ERESTARTSYS; | |
1544 | break; | |
c1986ee9 HW |
1545 | } |
1546 | /* Set Flags0 = 0x42 */ | |
1547 | DEBUGP(4, dev, "Set Flags0=0x42 \n"); | |
1548 | xoutb(0x42, REG_FLAGS0(iobase)); | |
1549 | clear_bit(IS_ATR_PRESENT, &dev->flags); | |
1550 | clear_bit(IS_ATR_VALID, &dev->flags); | |
1551 | dev->mstate = M_CARDOFF; | |
1552 | clear_bit(LOCK_IO, &dev->flags); | |
1553 | if (wait_event_interruptible | |
1554 | (dev->atrq, | |
1555 | ((filp->f_flags & O_NONBLOCK) | |
1556 | || (test_bit(IS_ATR_VALID, (void *)&dev->flags) != | |
1557 | 0)))) { | |
1558 | if (filp->f_flags & O_NONBLOCK) | |
4cf974c5 AC |
1559 | rc = -EAGAIN; |
1560 | else | |
1561 | rc = -ERESTARTSYS; | |
1562 | break; | |
c1986ee9 HW |
1563 | } |
1564 | } | |
1565 | /* release lock */ | |
1566 | clear_bit(LOCK_IO, &dev->flags); | |
1567 | wake_up_interruptible(&dev->ioq); | |
1568 | ||
69ae59d7 JS |
1569 | rc = 0; |
1570 | break; | |
c1986ee9 HW |
1571 | case CM_IOCSPTS: |
1572 | { | |
1573 | struct ptsreq krnptsreq; | |
1574 | ||
c4aa02eb | 1575 | if (copy_from_user(&krnptsreq, argp, |
4cf974c5 AC |
1576 | sizeof(struct ptsreq))) { |
1577 | rc = -EFAULT; | |
1578 | break; | |
1579 | } | |
c1986ee9 HW |
1580 | |
1581 | rc = 0; | |
1582 | DEBUGP(4, dev, "... in CM_IOCSPTS\n"); | |
1583 | /* wait for ATR to get valid */ | |
1584 | if (wait_event_interruptible | |
1585 | (dev->atrq, | |
1586 | ((filp->f_flags & O_NONBLOCK) | |
1587 | || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) | |
1588 | != 0)))) { | |
1589 | if (filp->f_flags & O_NONBLOCK) | |
4cf974c5 AC |
1590 | rc = -EAGAIN; |
1591 | else | |
1592 | rc = -ERESTARTSYS; | |
1593 | break; | |
c1986ee9 HW |
1594 | } |
1595 | /* get IO lock */ | |
1596 | if (wait_event_interruptible | |
1597 | (dev->ioq, | |
1598 | ((filp->f_flags & O_NONBLOCK) | |
1599 | || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) | |
1600 | == 0)))) { | |
1601 | if (filp->f_flags & O_NONBLOCK) | |
4cf974c5 AC |
1602 | rc = -EAGAIN; |
1603 | else | |
1604 | rc = -ERESTARTSYS; | |
1605 | break; | |
c1986ee9 HW |
1606 | } |
1607 | ||
1608 | if ((rc = set_protocol(dev, &krnptsreq)) != 0) { | |
1609 | /* auto power_on again */ | |
1610 | dev->mstate = M_FETCH_ATR; | |
1611 | clear_bit(IS_ATR_VALID, &dev->flags); | |
1612 | } | |
1613 | /* release lock */ | |
1614 | clear_bit(LOCK_IO, &dev->flags); | |
1615 | wake_up_interruptible(&dev->ioq); | |
1616 | ||
1617 | } | |
4cf974c5 | 1618 | break; |
cbf624f0 DB |
1619 | #ifdef CM4000_DEBUG |
1620 | case CM_IOSDBGLVL: | |
1621 | rc = -ENOTTY; | |
4cf974c5 | 1622 | break; |
c1986ee9 HW |
1623 | #endif |
1624 | default: | |
1625 | DEBUGP(4, dev, "... in default (unknown IOCTL code)\n"); | |
4cf974c5 | 1626 | rc = -ENOTTY; |
c1986ee9 | 1627 | } |
4cf974c5 AC |
1628 | out: |
1629 | unlock_kernel(); | |
1630 | return rc; | |
c1986ee9 HW |
1631 | } |
1632 | ||
1633 | static int cmm_open(struct inode *inode, struct file *filp) | |
1634 | { | |
1635 | struct cm4000_dev *dev; | |
fba395ee | 1636 | struct pcmcia_device *link; |
925796e0 | 1637 | int minor = iminor(inode); |
8b5332f6 | 1638 | int ret; |
c1986ee9 HW |
1639 | |
1640 | if (minor >= CM4000_MAX_DEV) | |
1641 | return -ENODEV; | |
1642 | ||
8b5332f6 | 1643 | lock_kernel(); |
c1986ee9 | 1644 | link = dev_table[minor]; |
8b5332f6 JC |
1645 | if (link == NULL || !pcmcia_dev_present(link)) { |
1646 | ret = -ENODEV; | |
1647 | goto out; | |
1648 | } | |
c1986ee9 | 1649 | |
8b5332f6 JC |
1650 | if (link->open) { |
1651 | ret = -EBUSY; | |
1652 | goto out; | |
1653 | } | |
c1986ee9 HW |
1654 | |
1655 | dev = link->priv; | |
1656 | filp->private_data = dev; | |
1657 | ||
1658 | DEBUGP(2, dev, "-> cmm_open(device=%d.%d process=%s,%d)\n", | |
1659 | imajor(inode), minor, current->comm, current->pid); | |
1660 | ||
1661 | /* init device variables, they may be "polluted" after close | |
1662 | * or, the device may never have been closed (i.e. open failed) | |
1663 | */ | |
1664 | ||
1665 | ZERO_DEV(dev); | |
1666 | ||
1667 | /* opening will always block since the | |
1668 | * monitor will be started by open, which | |
1669 | * means we have to wait for ATR becoming | |
1670 | * vaild = block until valid (or card | |
1671 | * inserted) | |
1672 | */ | |
8b5332f6 JC |
1673 | if (filp->f_flags & O_NONBLOCK) { |
1674 | ret = -EAGAIN; | |
1675 | goto out; | |
1676 | } | |
c1986ee9 HW |
1677 | |
1678 | dev->mdelay = T_50MSEC; | |
1679 | ||
1680 | /* start monitoring the cardstatus */ | |
1681 | start_monitor(dev); | |
1682 | ||
1683 | link->open = 1; /* only one open per device */ | |
c1986ee9 HW |
1684 | |
1685 | DEBUGP(2, dev, "<- cmm_open\n"); | |
8b5332f6 JC |
1686 | ret = nonseekable_open(inode, filp); |
1687 | out: | |
1688 | unlock_kernel(); | |
1689 | return ret; | |
c1986ee9 HW |
1690 | } |
1691 | ||
1692 | static int cmm_close(struct inode *inode, struct file *filp) | |
1693 | { | |
1694 | struct cm4000_dev *dev; | |
fba395ee | 1695 | struct pcmcia_device *link; |
c1986ee9 HW |
1696 | int minor = iminor(inode); |
1697 | ||
1698 | if (minor >= CM4000_MAX_DEV) | |
1699 | return -ENODEV; | |
1700 | ||
1701 | link = dev_table[minor]; | |
1702 | if (link == NULL) | |
1703 | return -ENODEV; | |
1704 | ||
1705 | dev = link->priv; | |
1706 | ||
1707 | DEBUGP(2, dev, "-> cmm_close(maj/min=%d.%d)\n", | |
1708 | imajor(inode), minor); | |
1709 | ||
1710 | stop_monitor(dev); | |
1711 | ||
1712 | ZERO_DEV(dev); | |
1713 | ||
1714 | link->open = 0; /* only one open per device */ | |
1715 | wake_up(&dev->devq); /* socket removed? */ | |
1716 | ||
1717 | DEBUGP(2, dev, "cmm_close\n"); | |
1718 | return 0; | |
1719 | } | |
1720 | ||
fba395ee | 1721 | static void cmm_cm4000_release(struct pcmcia_device * link) |
c1986ee9 HW |
1722 | { |
1723 | struct cm4000_dev *dev = link->priv; | |
1724 | ||
1725 | /* dont terminate the monitor, rather rely on | |
1726 | * close doing that for us. | |
1727 | */ | |
1728 | DEBUGP(3, dev, "-> cmm_cm4000_release\n"); | |
1729 | while (link->open) { | |
1730 | printk(KERN_INFO MODULE_NAME ": delaying release until " | |
1731 | "process has terminated\n"); | |
1732 | /* note: don't interrupt us: | |
1733 | * close the applications which own | |
1734 | * the devices _first_ ! | |
1735 | */ | |
1736 | wait_event(dev->devq, (link->open == 0)); | |
1737 | } | |
1738 | /* dev->devq=NULL; this cannot be zeroed earlier */ | |
1739 | DEBUGP(3, dev, "<- cmm_cm4000_release\n"); | |
1740 | return; | |
1741 | } | |
1742 | ||
1743 | /*==== Interface to PCMCIA Layer =======================================*/ | |
1744 | ||
84e2d340 DB |
1745 | static int cm4000_config_check(struct pcmcia_device *p_dev, |
1746 | cistpl_cftable_entry_t *cfg, | |
8e2fc39d | 1747 | cistpl_cftable_entry_t *dflt, |
ad913c11 | 1748 | unsigned int vcc, |
84e2d340 DB |
1749 | void *priv_data) |
1750 | { | |
84e2d340 DB |
1751 | if (!cfg->io.nwin) |
1752 | return -ENODEV; | |
1753 | ||
1754 | /* Get the IOaddr */ | |
1755 | p_dev->io.BasePort1 = cfg->io.win[0].base; | |
1756 | p_dev->io.NumPorts1 = cfg->io.win[0].len; | |
1757 | p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; | |
1758 | if (!(cfg->io.flags & CISTPL_IO_8BIT)) | |
1759 | p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_16; | |
1760 | if (!(cfg->io.flags & CISTPL_IO_16BIT)) | |
1761 | p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; | |
1762 | p_dev->io.IOAddrLines = cfg->io.flags & CISTPL_IO_LINES_MASK; | |
1763 | ||
1764 | return pcmcia_request_io(p_dev, &p_dev->io); | |
1765 | } | |
1766 | ||
15b99ac1 | 1767 | static int cm4000_config(struct pcmcia_device * link, int devno) |
c1986ee9 | 1768 | { |
c1986ee9 | 1769 | struct cm4000_dev *dev; |
c1986ee9 HW |
1770 | |
1771 | /* read the config-tuples */ | |
84e2d340 | 1772 | if (pcmcia_loop_config(link, cm4000_config_check, NULL)) |
c1986ee9 HW |
1773 | goto cs_release; |
1774 | ||
1775 | link->conf.IntType = 00000002; | |
1776 | ||
84e2d340 | 1777 | if (pcmcia_request_configuration(link, &link->conf)) |
c1986ee9 | 1778 | goto cs_release; |
c1986ee9 HW |
1779 | |
1780 | dev = link->priv; | |
c1986ee9 | 1781 | |
15b99ac1 | 1782 | return 0; |
c1986ee9 | 1783 | |
c1986ee9 HW |
1784 | cs_release: |
1785 | cm4000_release(link); | |
15b99ac1 | 1786 | return -ENODEV; |
c1986ee9 HW |
1787 | } |
1788 | ||
fba395ee | 1789 | static int cm4000_suspend(struct pcmcia_device *link) |
98e4c28b | 1790 | { |
98e4c28b DB |
1791 | struct cm4000_dev *dev; |
1792 | ||
1793 | dev = link->priv; | |
98e4c28b DB |
1794 | stop_monitor(dev); |
1795 | ||
1796 | return 0; | |
1797 | } | |
1798 | ||
fba395ee | 1799 | static int cm4000_resume(struct pcmcia_device *link) |
98e4c28b | 1800 | { |
98e4c28b DB |
1801 | struct cm4000_dev *dev; |
1802 | ||
1803 | dev = link->priv; | |
98e4c28b DB |
1804 | if (link->open) |
1805 | start_monitor(dev); | |
1806 | ||
1807 | return 0; | |
1808 | } | |
1809 | ||
fba395ee | 1810 | static void cm4000_release(struct pcmcia_device *link) |
c1986ee9 | 1811 | { |
925796e0 | 1812 | cmm_cm4000_release(link); /* delay release until device closed */ |
fba395ee | 1813 | pcmcia_disable_device(link); |
c1986ee9 HW |
1814 | } |
1815 | ||
15b99ac1 | 1816 | static int cm4000_probe(struct pcmcia_device *link) |
c1986ee9 HW |
1817 | { |
1818 | struct cm4000_dev *dev; | |
15b99ac1 | 1819 | int i, ret; |
c1986ee9 HW |
1820 | |
1821 | for (i = 0; i < CM4000_MAX_DEV; i++) | |
1822 | if (dev_table[i] == NULL) | |
1823 | break; | |
1824 | ||
1825 | if (i == CM4000_MAX_DEV) { | |
1826 | printk(KERN_NOTICE MODULE_NAME ": all devices in use\n"); | |
f8cfa618 | 1827 | return -ENODEV; |
c1986ee9 HW |
1828 | } |
1829 | ||
1830 | /* create a new cm4000_cs device */ | |
1831 | dev = kzalloc(sizeof(struct cm4000_dev), GFP_KERNEL); | |
1832 | if (dev == NULL) | |
f8cfa618 | 1833 | return -ENOMEM; |
c1986ee9 | 1834 | |
fba395ee | 1835 | dev->p_dev = link; |
c1986ee9 HW |
1836 | link->priv = dev; |
1837 | link->conf.IntType = INT_MEMORY_AND_IO; | |
1838 | dev_table[i] = link; | |
1839 | ||
c1986ee9 HW |
1840 | init_waitqueue_head(&dev->devq); |
1841 | init_waitqueue_head(&dev->ioq); | |
1842 | init_waitqueue_head(&dev->atrq); | |
1843 | init_waitqueue_head(&dev->readq); | |
1844 | ||
15b99ac1 | 1845 | ret = cm4000_config(link, i); |
54493c10 AM |
1846 | if (ret) { |
1847 | dev_table[i] = NULL; | |
1848 | kfree(dev); | |
15b99ac1 | 1849 | return ret; |
54493c10 | 1850 | } |
f8cfa618 | 1851 | |
03457cd4 | 1852 | device_create(cmm_class, NULL, MKDEV(major, i), NULL, "cmm%d", i); |
67bc6200 | 1853 | |
f8cfa618 | 1854 | return 0; |
c1986ee9 HW |
1855 | } |
1856 | ||
fba395ee | 1857 | static void cm4000_detach(struct pcmcia_device *link) |
c1986ee9 HW |
1858 | { |
1859 | struct cm4000_dev *dev = link->priv; | |
cc3b4866 | 1860 | int devno; |
c1986ee9 | 1861 | |
cc3b4866 DB |
1862 | /* find device */ |
1863 | for (devno = 0; devno < CM4000_MAX_DEV; devno++) | |
1864 | if (dev_table[devno] == link) | |
1865 | break; | |
1866 | if (devno == CM4000_MAX_DEV) | |
1867 | return; | |
c1986ee9 | 1868 | |
cc3b4866 | 1869 | stop_monitor(dev); |
c1986ee9 | 1870 | |
e2d40963 | 1871 | cm4000_release(link); |
c1986ee9 HW |
1872 | |
1873 | dev_table[devno] = NULL; | |
54493c10 | 1874 | kfree(dev); |
c1986ee9 | 1875 | |
07c015e7 | 1876 | device_destroy(cmm_class, MKDEV(major, devno)); |
67bc6200 | 1877 | |
c1986ee9 HW |
1878 | return; |
1879 | } | |
1880 | ||
62322d25 | 1881 | static const struct file_operations cm4000_fops = { |
c1986ee9 HW |
1882 | .owner = THIS_MODULE, |
1883 | .read = cmm_read, | |
1884 | .write = cmm_write, | |
4cf974c5 | 1885 | .unlocked_ioctl = cmm_ioctl, |
c1986ee9 HW |
1886 | .open = cmm_open, |
1887 | .release= cmm_close, | |
1888 | }; | |
1889 | ||
1890 | static struct pcmcia_device_id cm4000_ids[] = { | |
1891 | PCMCIA_DEVICE_MANF_CARD(0x0223, 0x0002), | |
1892 | PCMCIA_DEVICE_PROD_ID12("CardMan", "4000", 0x2FB368CA, 0xA2BD8C39), | |
1893 | PCMCIA_DEVICE_NULL, | |
1894 | }; | |
1895 | MODULE_DEVICE_TABLE(pcmcia, cm4000_ids); | |
1896 | ||
1897 | static struct pcmcia_driver cm4000_driver = { | |
1898 | .owner = THIS_MODULE, | |
1899 | .drv = { | |
1900 | .name = "cm4000_cs", | |
1901 | }, | |
15b99ac1 | 1902 | .probe = cm4000_probe, |
cc3b4866 | 1903 | .remove = cm4000_detach, |
98e4c28b DB |
1904 | .suspend = cm4000_suspend, |
1905 | .resume = cm4000_resume, | |
c1986ee9 HW |
1906 | .id_table = cm4000_ids, |
1907 | }; | |
1908 | ||
1909 | static int __init cmm_init(void) | |
1910 | { | |
67bc6200 HW |
1911 | int rc; |
1912 | ||
c1986ee9 | 1913 | printk(KERN_INFO "%s\n", version); |
67bc6200 HW |
1914 | |
1915 | cmm_class = class_create(THIS_MODULE, "cardman_4000"); | |
5eb5fc97 AM |
1916 | if (IS_ERR(cmm_class)) |
1917 | return PTR_ERR(cmm_class); | |
67bc6200 | 1918 | |
c1986ee9 HW |
1919 | major = register_chrdev(0, DEVICE_NAME, &cm4000_fops); |
1920 | if (major < 0) { | |
1921 | printk(KERN_WARNING MODULE_NAME | |
1922 | ": could not get major number\n"); | |
54493c10 | 1923 | class_destroy(cmm_class); |
5eb5fc97 | 1924 | return major; |
c1986ee9 HW |
1925 | } |
1926 | ||
7fc5b1e3 HW |
1927 | rc = pcmcia_register_driver(&cm4000_driver); |
1928 | if (rc < 0) { | |
1929 | unregister_chrdev(major, DEVICE_NAME); | |
54493c10 | 1930 | class_destroy(cmm_class); |
7fc5b1e3 HW |
1931 | return rc; |
1932 | } | |
1933 | ||
c1986ee9 HW |
1934 | return 0; |
1935 | } | |
1936 | ||
1937 | static void __exit cmm_exit(void) | |
1938 | { | |
c1986ee9 HW |
1939 | printk(KERN_INFO MODULE_NAME ": unloading\n"); |
1940 | pcmcia_unregister_driver(&cm4000_driver); | |
c1986ee9 | 1941 | unregister_chrdev(major, DEVICE_NAME); |
67bc6200 | 1942 | class_destroy(cmm_class); |
c1986ee9 HW |
1943 | }; |
1944 | ||
1945 | module_init(cmm_init); | |
1946 | module_exit(cmm_exit); | |
1947 | MODULE_LICENSE("Dual BSD/GPL"); |