Commit | Line | Data |
---|---|---|
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 | * | |
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)) | |
49 | static int pc_debug = PCMCIA_DEBUG; | |
50 | module_param(pc_debug, int, 0600); | |
51 | #define DEBUGP(n, rdr, x, args...) do { \ | |
52 | if (pc_debug >= (n)) \ | |
53 | dev_printk(KERN_DEBUG, reader_to_dev(rdr), "%s:" x, \ | |
54 | __FUNCTION__ , ## args); \ | |
55 | } while (0) | |
56 | #else | |
57 | #define DEBUGP(n, rdr, x, args...) | |
58 | #endif | |
59 | static 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 | ||
69 | static void cm4000_detach(dev_link_t *link); | |
70 | static void cm4000_release(dev_link_t *link); | |
71 | ||
72 | static 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 | ||
108 | struct 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 | ||
159 | static dev_info_t dev_info = MODULE_NAME; | |
160 | static 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 */ | |
165 | static unsigned char fi_di_table[10][14] = { | |
166 | /*FI 00 01 02 03 04 05 06 07 08 09 10 11 12 13 */ | |
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 | |
184 | static 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 | } | |
190 | static 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 | ||
219 | static unsigned char irtab[16] = { | |
220 | b_0000, b_1000, b_0100, b_1100, | |
221 | b_0010, b_1010, b_0110, b_1110, | |
222 | b_0001, b_1001, b_0101, b_1101, | |
223 | b_0011, b_1011, b_0111, b_1111 | |
224 | }; | |
225 | ||
226 | static 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 | ||
234 | static 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 | ||
243 | static 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 | ||
339 | static 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 | ||
353 | static 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 | ||
434 | struct card_fixup { | |
435 | char atr[12]; | |
436 | u_int8_t atr_len; | |
437 | u_int8_t stopbits; | |
438 | }; | |
439 | ||
440 | static 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 | ||
454 | static 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 | ||
483 | static 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 | ||
636 | exit_setprotocol: | |
637 | DEBUGP(3, dev, "<- set_protocol\n"); | |
638 | return rc; | |
639 | } | |
640 | ||
641 | static 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 | ||
662 | static 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 | ||
699 | static 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 | ||
947 | release_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 | ||
952 | return_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 | ||
961 | static 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 | ||
1073 | release_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 | ||
1082 | static 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 | ||
1387 | release_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 | ||
1409 | static 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 | ||
1425 | static 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 | ||
1439 | static 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; | |
c4aa02eb | 1447 | void __user *argp = (void __user *)arg; |
c1986ee9 HW |
1448 | #ifdef PCMCIA_DEBUG |
1449 | char *ioctl_names[CM_IOC_MAXNR + 1] = { | |
1450 | [_IOC_NR(CM_IOCGSTATUS)] "CM_IOCGSTATUS", | |
1451 | [_IOC_NR(CM_IOCGATR)] "CM_IOCGATR", | |
1452 | [_IOC_NR(CM_IOCARDOFF)] "CM_IOCARDOFF", | |
1453 | [_IOC_NR(CM_IOCSPTS)] "CM_IOCSPTS", | |
1454 | [_IOC_NR(CM_IOSDBGLVL)] "CM4000_DBGLVL", | |
1455 | }; | |
1456 | #endif | |
1457 | DEBUGP(3, dev, "cmm_ioctl(device=%d.%d) %s\n", imajor(inode), | |
1458 | iminor(inode), ioctl_names[_IOC_NR(cmd)]); | |
1459 | ||
1460 | link = dev_table[iminor(inode)]; | |
1461 | if (!(DEV_OK(link))) { | |
1462 | DEBUGP(4, dev, "DEV_OK false\n"); | |
1463 | return -ENODEV; | |
1464 | } | |
1465 | ||
1466 | if (test_bit(IS_CMM_ABSENT, &dev->flags)) { | |
1467 | DEBUGP(4, dev, "CMM_ABSENT flag set\n"); | |
1468 | return -ENODEV; | |
1469 | } | |
1470 | ||
1471 | if (_IOC_TYPE(cmd) != CM_IOC_MAGIC) { | |
1472 | DEBUGP(4, dev, "ioctype mismatch\n"); | |
1473 | return -EINVAL; | |
1474 | } | |
1475 | if (_IOC_NR(cmd) > CM_IOC_MAXNR) { | |
1476 | DEBUGP(4, dev, "iocnr mismatch\n"); | |
1477 | return -EINVAL; | |
1478 | } | |
1479 | size = _IOC_SIZE(cmd); | |
1480 | rc = 0; | |
1481 | DEBUGP(4, dev, "iocdir=%.4x iocr=%.4x iocw=%.4x iocsize=%d cmd=%.4x\n", | |
1482 | _IOC_DIR(cmd), _IOC_READ, _IOC_WRITE, size, cmd); | |
1483 | ||
1484 | if (_IOC_DIR(cmd) & _IOC_READ) { | |
c4aa02eb | 1485 | if (!access_ok(VERIFY_WRITE, argp, size)) |
c1986ee9 HW |
1486 | return -EFAULT; |
1487 | } | |
1488 | if (_IOC_DIR(cmd) & _IOC_WRITE) { | |
c4aa02eb | 1489 | if (!access_ok(VERIFY_READ, argp, size)) |
c1986ee9 HW |
1490 | return -EFAULT; |
1491 | } | |
1492 | ||
1493 | switch (cmd) { | |
1494 | case CM_IOCGSTATUS: | |
1495 | DEBUGP(4, dev, " ... in CM_IOCGSTATUS\n"); | |
1496 | { | |
1497 | int status; | |
1498 | ||
1499 | /* clear other bits, but leave inserted & powered as | |
1500 | * they are */ | |
1501 | status = dev->flags0 & 3; | |
1502 | if (test_bit(IS_ATR_PRESENT, &dev->flags)) | |
1503 | status |= CM_ATR_PRESENT; | |
1504 | if (test_bit(IS_ATR_VALID, &dev->flags)) | |
1505 | status |= CM_ATR_VALID; | |
1506 | if (test_bit(IS_CMM_ABSENT, &dev->flags)) | |
1507 | status |= CM_NO_READER; | |
1508 | if (test_bit(IS_BAD_CARD, &dev->flags)) | |
1509 | status |= CM_BAD_CARD; | |
c4aa02eb | 1510 | if (copy_to_user(argp, &status, sizeof(int))) |
c1986ee9 HW |
1511 | return -EFAULT; |
1512 | } | |
1513 | return 0; | |
1514 | case CM_IOCGATR: | |
1515 | DEBUGP(4, dev, "... in CM_IOCGATR\n"); | |
1516 | { | |
c4aa02eb | 1517 | struct atreq __user *atreq = argp; |
c1986ee9 HW |
1518 | int tmp; |
1519 | /* allow nonblocking io and being interrupted */ | |
1520 | if (wait_event_interruptible | |
1521 | (dev->atrq, | |
1522 | ((filp->f_flags & O_NONBLOCK) | |
1523 | || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) | |
1524 | != 0)))) { | |
1525 | if (filp->f_flags & O_NONBLOCK) | |
1526 | return -EAGAIN; | |
1527 | return -ERESTARTSYS; | |
1528 | } | |
1529 | ||
1530 | if (test_bit(IS_ATR_VALID, &dev->flags) == 0) { | |
1531 | tmp = -1; | |
1532 | if (copy_to_user(&(atreq->atr_len), &tmp, | |
1533 | sizeof(int))) | |
1534 | return -EFAULT; | |
1535 | } else { | |
1536 | if (copy_to_user(atreq->atr, dev->atr, | |
1537 | dev->atr_len)) | |
1538 | return -EFAULT; | |
1539 | ||
1540 | tmp = dev->atr_len; | |
1541 | if (copy_to_user(&(atreq->atr_len), &tmp, sizeof(int))) | |
1542 | return -EFAULT; | |
1543 | } | |
1544 | return 0; | |
1545 | } | |
1546 | case CM_IOCARDOFF: | |
1547 | ||
1548 | #ifdef PCMCIA_DEBUG | |
1549 | DEBUGP(4, dev, "... in CM_IOCARDOFF\n"); | |
1550 | if (dev->flags0 & 0x01) { | |
1551 | DEBUGP(4, dev, " Card inserted\n"); | |
1552 | } else { | |
1553 | DEBUGP(2, dev, " No card inserted\n"); | |
1554 | } | |
1555 | if (dev->flags0 & 0x02) { | |
1556 | DEBUGP(4, dev, " Card powered\n"); | |
1557 | } else { | |
1558 | DEBUGP(2, dev, " Card not powered\n"); | |
1559 | } | |
1560 | #endif | |
1561 | ||
1562 | /* is a card inserted and powered? */ | |
1563 | if ((dev->flags0 & 0x01) && (dev->flags0 & 0x02)) { | |
1564 | ||
1565 | /* get IO lock */ | |
1566 | if (wait_event_interruptible | |
1567 | (dev->ioq, | |
1568 | ((filp->f_flags & O_NONBLOCK) | |
1569 | || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) | |
1570 | == 0)))) { | |
1571 | if (filp->f_flags & O_NONBLOCK) | |
1572 | return -EAGAIN; | |
1573 | return -ERESTARTSYS; | |
1574 | } | |
1575 | /* Set Flags0 = 0x42 */ | |
1576 | DEBUGP(4, dev, "Set Flags0=0x42 \n"); | |
1577 | xoutb(0x42, REG_FLAGS0(iobase)); | |
1578 | clear_bit(IS_ATR_PRESENT, &dev->flags); | |
1579 | clear_bit(IS_ATR_VALID, &dev->flags); | |
1580 | dev->mstate = M_CARDOFF; | |
1581 | clear_bit(LOCK_IO, &dev->flags); | |
1582 | if (wait_event_interruptible | |
1583 | (dev->atrq, | |
1584 | ((filp->f_flags & O_NONBLOCK) | |
1585 | || (test_bit(IS_ATR_VALID, (void *)&dev->flags) != | |
1586 | 0)))) { | |
1587 | if (filp->f_flags & O_NONBLOCK) | |
1588 | return -EAGAIN; | |
1589 | return -ERESTARTSYS; | |
1590 | } | |
1591 | } | |
1592 | /* release lock */ | |
1593 | clear_bit(LOCK_IO, &dev->flags); | |
1594 | wake_up_interruptible(&dev->ioq); | |
1595 | ||
1596 | return 0; | |
1597 | case CM_IOCSPTS: | |
1598 | { | |
1599 | struct ptsreq krnptsreq; | |
1600 | ||
c4aa02eb | 1601 | if (copy_from_user(&krnptsreq, argp, |
c1986ee9 HW |
1602 | sizeof(struct ptsreq))) |
1603 | return -EFAULT; | |
1604 | ||
1605 | rc = 0; | |
1606 | DEBUGP(4, dev, "... in CM_IOCSPTS\n"); | |
1607 | /* wait for ATR to get valid */ | |
1608 | if (wait_event_interruptible | |
1609 | (dev->atrq, | |
1610 | ((filp->f_flags & O_NONBLOCK) | |
1611 | || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) | |
1612 | != 0)))) { | |
1613 | if (filp->f_flags & O_NONBLOCK) | |
1614 | return -EAGAIN; | |
1615 | return -ERESTARTSYS; | |
1616 | } | |
1617 | /* get IO lock */ | |
1618 | if (wait_event_interruptible | |
1619 | (dev->ioq, | |
1620 | ((filp->f_flags & O_NONBLOCK) | |
1621 | || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) | |
1622 | == 0)))) { | |
1623 | if (filp->f_flags & O_NONBLOCK) | |
1624 | return -EAGAIN; | |
1625 | return -ERESTARTSYS; | |
1626 | } | |
1627 | ||
1628 | if ((rc = set_protocol(dev, &krnptsreq)) != 0) { | |
1629 | /* auto power_on again */ | |
1630 | dev->mstate = M_FETCH_ATR; | |
1631 | clear_bit(IS_ATR_VALID, &dev->flags); | |
1632 | } | |
1633 | /* release lock */ | |
1634 | clear_bit(LOCK_IO, &dev->flags); | |
1635 | wake_up_interruptible(&dev->ioq); | |
1636 | ||
1637 | } | |
1638 | return rc; | |
1639 | #ifdef PCMCIA_DEBUG | |
1640 | case CM_IOSDBGLVL: /* set debug log level */ | |
1641 | { | |
1642 | int old_pc_debug = 0; | |
1643 | ||
1644 | old_pc_debug = pc_debug; | |
c4aa02eb | 1645 | if (copy_from_user(&pc_debug, argp, sizeof(int))) |
c1986ee9 HW |
1646 | return -EFAULT; |
1647 | ||
1648 | if (old_pc_debug != pc_debug) | |
1649 | DEBUGP(0, dev, "Changed debug log level " | |
1650 | "to %i\n", pc_debug); | |
1651 | } | |
1652 | return rc; | |
1653 | #endif | |
1654 | default: | |
1655 | DEBUGP(4, dev, "... in default (unknown IOCTL code)\n"); | |
1656 | return -EINVAL; | |
1657 | } | |
1658 | } | |
1659 | ||
1660 | static int cmm_open(struct inode *inode, struct file *filp) | |
1661 | { | |
1662 | struct cm4000_dev *dev; | |
1663 | dev_link_t *link; | |
1664 | int rc, minor = iminor(inode); | |
1665 | ||
1666 | if (minor >= CM4000_MAX_DEV) | |
1667 | return -ENODEV; | |
1668 | ||
1669 | link = dev_table[minor]; | |
1670 | if (link == NULL || !(DEV_OK(link))) | |
1671 | return -ENODEV; | |
1672 | ||
1673 | if (link->open) | |
1674 | return -EBUSY; | |
1675 | ||
1676 | dev = link->priv; | |
1677 | filp->private_data = dev; | |
1678 | ||
1679 | DEBUGP(2, dev, "-> cmm_open(device=%d.%d process=%s,%d)\n", | |
1680 | imajor(inode), minor, current->comm, current->pid); | |
1681 | ||
1682 | /* init device variables, they may be "polluted" after close | |
1683 | * or, the device may never have been closed (i.e. open failed) | |
1684 | */ | |
1685 | ||
1686 | ZERO_DEV(dev); | |
1687 | ||
1688 | /* opening will always block since the | |
1689 | * monitor will be started by open, which | |
1690 | * means we have to wait for ATR becoming | |
1691 | * vaild = block until valid (or card | |
1692 | * inserted) | |
1693 | */ | |
1694 | if (filp->f_flags & O_NONBLOCK) | |
1695 | return -EAGAIN; | |
1696 | ||
1697 | dev->mdelay = T_50MSEC; | |
1698 | ||
1699 | /* start monitoring the cardstatus */ | |
1700 | start_monitor(dev); | |
1701 | ||
1702 | link->open = 1; /* only one open per device */ | |
1703 | rc = 0; | |
1704 | ||
1705 | DEBUGP(2, dev, "<- cmm_open\n"); | |
1706 | return nonseekable_open(inode, filp); | |
1707 | } | |
1708 | ||
1709 | static int cmm_close(struct inode *inode, struct file *filp) | |
1710 | { | |
1711 | struct cm4000_dev *dev; | |
1712 | dev_link_t *link; | |
1713 | int minor = iminor(inode); | |
1714 | ||
1715 | if (minor >= CM4000_MAX_DEV) | |
1716 | return -ENODEV; | |
1717 | ||
1718 | link = dev_table[minor]; | |
1719 | if (link == NULL) | |
1720 | return -ENODEV; | |
1721 | ||
1722 | dev = link->priv; | |
1723 | ||
1724 | DEBUGP(2, dev, "-> cmm_close(maj/min=%d.%d)\n", | |
1725 | imajor(inode), minor); | |
1726 | ||
1727 | stop_monitor(dev); | |
1728 | ||
1729 | ZERO_DEV(dev); | |
1730 | ||
1731 | link->open = 0; /* only one open per device */ | |
1732 | wake_up(&dev->devq); /* socket removed? */ | |
1733 | ||
1734 | DEBUGP(2, dev, "cmm_close\n"); | |
1735 | return 0; | |
1736 | } | |
1737 | ||
1738 | static void cmm_cm4000_release(dev_link_t * link) | |
1739 | { | |
1740 | struct cm4000_dev *dev = link->priv; | |
1741 | ||
1742 | /* dont terminate the monitor, rather rely on | |
1743 | * close doing that for us. | |
1744 | */ | |
1745 | DEBUGP(3, dev, "-> cmm_cm4000_release\n"); | |
1746 | while (link->open) { | |
1747 | printk(KERN_INFO MODULE_NAME ": delaying release until " | |
1748 | "process has terminated\n"); | |
1749 | /* note: don't interrupt us: | |
1750 | * close the applications which own | |
1751 | * the devices _first_ ! | |
1752 | */ | |
1753 | wait_event(dev->devq, (link->open == 0)); | |
1754 | } | |
1755 | /* dev->devq=NULL; this cannot be zeroed earlier */ | |
1756 | DEBUGP(3, dev, "<- cmm_cm4000_release\n"); | |
1757 | return; | |
1758 | } | |
1759 | ||
1760 | /*==== Interface to PCMCIA Layer =======================================*/ | |
1761 | ||
1762 | static void cm4000_config(dev_link_t * link, int devno) | |
1763 | { | |
1764 | client_handle_t handle = link->handle; | |
1765 | struct cm4000_dev *dev; | |
1766 | tuple_t tuple; | |
1767 | cisparse_t parse; | |
1768 | config_info_t conf; | |
1769 | u_char buf[64]; | |
1770 | int fail_fn, fail_rc; | |
1771 | int rc; | |
1772 | ||
1773 | /* read the config-tuples */ | |
1774 | tuple.DesiredTuple = CISTPL_CONFIG; | |
1775 | tuple.Attributes = 0; | |
1776 | tuple.TupleData = buf; | |
1777 | tuple.TupleDataMax = sizeof(buf); | |
1778 | tuple.TupleOffset = 0; | |
1779 | ||
1780 | if ((fail_rc = pcmcia_get_first_tuple(handle, &tuple)) != CS_SUCCESS) { | |
1781 | fail_fn = GetFirstTuple; | |
1782 | goto cs_failed; | |
1783 | } | |
1784 | if ((fail_rc = pcmcia_get_tuple_data(handle, &tuple)) != CS_SUCCESS) { | |
1785 | fail_fn = GetTupleData; | |
1786 | goto cs_failed; | |
1787 | } | |
1788 | if ((fail_rc = | |
1789 | pcmcia_parse_tuple(handle, &tuple, &parse)) != CS_SUCCESS) { | |
1790 | fail_fn = ParseTuple; | |
1791 | goto cs_failed; | |
1792 | } | |
1793 | if ((fail_rc = | |
1794 | pcmcia_get_configuration_info(handle, &conf)) != CS_SUCCESS) { | |
1795 | fail_fn = GetConfigurationInfo; | |
1796 | goto cs_failed; | |
1797 | } | |
1798 | ||
1799 | link->state |= DEV_CONFIG; | |
1800 | link->conf.ConfigBase = parse.config.base; | |
1801 | link->conf.Present = parse.config.rmask[0]; | |
1802 | link->conf.Vcc = conf.Vcc; | |
1803 | ||
1804 | link->io.BasePort2 = 0; | |
1805 | link->io.NumPorts2 = 0; | |
1806 | link->io.Attributes2 = 0; | |
1807 | tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; | |
1808 | for (rc = pcmcia_get_first_tuple(handle, &tuple); | |
1809 | rc == CS_SUCCESS; rc = pcmcia_get_next_tuple(handle, &tuple)) { | |
1810 | ||
1811 | rc = pcmcia_get_tuple_data(handle, &tuple); | |
1812 | if (rc != CS_SUCCESS) | |
1813 | continue; | |
1814 | rc = pcmcia_parse_tuple(handle, &tuple, &parse); | |
1815 | if (rc != CS_SUCCESS) | |
1816 | continue; | |
1817 | ||
1818 | link->conf.ConfigIndex = parse.cftable_entry.index; | |
1819 | ||
1820 | if (!parse.cftable_entry.io.nwin) | |
1821 | continue; | |
1822 | ||
1823 | /* Get the IOaddr */ | |
1824 | link->io.BasePort1 = parse.cftable_entry.io.win[0].base; | |
1825 | link->io.NumPorts1 = parse.cftable_entry.io.win[0].len; | |
1826 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; | |
1827 | if (!(parse.cftable_entry.io.flags & CISTPL_IO_8BIT)) | |
1828 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_16; | |
1829 | if (!(parse.cftable_entry.io.flags & CISTPL_IO_16BIT)) | |
1830 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; | |
1831 | link->io.IOAddrLines = parse.cftable_entry.io.flags | |
1832 | & CISTPL_IO_LINES_MASK; | |
1833 | ||
1834 | rc = pcmcia_request_io(handle, &link->io); | |
1835 | if (rc == CS_SUCCESS) | |
1836 | break; /* we are done */ | |
1837 | } | |
1838 | if (rc != CS_SUCCESS) | |
1839 | goto cs_release; | |
1840 | ||
1841 | link->conf.IntType = 00000002; | |
1842 | ||
1843 | if ((fail_rc = | |
1844 | pcmcia_request_configuration(handle, &link->conf)) != CS_SUCCESS) { | |
1845 | fail_fn = RequestConfiguration; | |
1846 | goto cs_release; | |
1847 | } | |
1848 | ||
1849 | dev = link->priv; | |
1850 | sprintf(dev->node.dev_name, DEVICE_NAME "%d", devno); | |
1851 | dev->node.major = major; | |
1852 | dev->node.minor = devno; | |
1853 | dev->node.next = NULL; | |
1854 | link->dev = &dev->node; | |
1855 | link->state &= ~DEV_CONFIG_PENDING; | |
1856 | ||
1857 | return; | |
1858 | ||
1859 | cs_failed: | |
1860 | cs_error(handle, fail_fn, fail_rc); | |
1861 | cs_release: | |
1862 | cm4000_release(link); | |
1863 | ||
1864 | link->state &= ~DEV_CONFIG_PENDING; | |
1865 | } | |
1866 | ||
1867 | static int cm4000_event(event_t event, int priority, | |
1868 | event_callback_args_t *args) | |
1869 | { | |
1870 | dev_link_t *link; | |
1871 | struct cm4000_dev *dev; | |
1872 | int devno; | |
1873 | ||
1874 | link = args->client_data; | |
1875 | dev = link->priv; | |
1876 | ||
1877 | DEBUGP(3, dev, "-> cm4000_event\n"); | |
1878 | for (devno = 0; devno < CM4000_MAX_DEV; devno++) | |
1879 | if (dev_table[devno] == link) | |
1880 | break; | |
1881 | ||
1882 | if (devno == CM4000_MAX_DEV) | |
1883 | return CS_BAD_ADAPTER; | |
1884 | ||
1885 | switch (event) { | |
1886 | case CS_EVENT_CARD_INSERTION: | |
1887 | DEBUGP(5, dev, "CS_EVENT_CARD_INSERTION\n"); | |
1888 | link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; | |
1889 | cm4000_config(link, devno); | |
1890 | break; | |
1891 | case CS_EVENT_CARD_REMOVAL: | |
1892 | DEBUGP(5, dev, "CS_EVENT_CARD_REMOVAL\n"); | |
1893 | link->state &= ~DEV_PRESENT; | |
1894 | stop_monitor(dev); | |
1895 | break; | |
1896 | case CS_EVENT_PM_SUSPEND: | |
1897 | DEBUGP(5, dev, "CS_EVENT_PM_SUSPEND " | |
1898 | "(fall-through to CS_EVENT_RESET_PHYSICAL)\n"); | |
1899 | link->state |= DEV_SUSPEND; | |
1900 | /* fall-through */ | |
1901 | case CS_EVENT_RESET_PHYSICAL: | |
1902 | DEBUGP(5, dev, "CS_EVENT_RESET_PHYSICAL\n"); | |
1903 | if (link->state & DEV_CONFIG) { | |
1904 | DEBUGP(5, dev, "ReleaseConfiguration\n"); | |
1905 | pcmcia_release_configuration(link->handle); | |
1906 | } | |
1907 | stop_monitor(dev); | |
1908 | break; | |
1909 | case CS_EVENT_PM_RESUME: | |
1910 | DEBUGP(5, dev, "CS_EVENT_PM_RESUME " | |
1911 | "(fall-through to CS_EVENT_CARD_RESET)\n"); | |
1912 | link->state &= ~DEV_SUSPEND; | |
1913 | /* fall-through */ | |
1914 | case CS_EVENT_CARD_RESET: | |
1915 | DEBUGP(5, dev, "CS_EVENT_CARD_RESET\n"); | |
1916 | if ((link->state & DEV_CONFIG)) { | |
1917 | DEBUGP(5, dev, "RequestConfiguration\n"); | |
1918 | pcmcia_request_configuration(link->handle, &link->conf); | |
1919 | } | |
1920 | if (link->open) | |
1921 | start_monitor(dev); | |
1922 | break; | |
1923 | default: | |
1924 | DEBUGP(5, dev, "unknown event %.2x\n", event); | |
1925 | break; | |
1926 | } | |
1927 | DEBUGP(3, dev, "<- cm4000_event\n"); | |
1928 | return CS_SUCCESS; | |
1929 | } | |
1930 | ||
1931 | static void cm4000_release(dev_link_t *link) | |
1932 | { | |
1933 | cmm_cm4000_release(link->priv); /* delay release until device closed */ | |
1934 | pcmcia_release_configuration(link->handle); | |
1935 | pcmcia_release_io(link->handle, &link->io); | |
1936 | } | |
1937 | ||
1938 | static dev_link_t *cm4000_attach(void) | |
1939 | { | |
1940 | struct cm4000_dev *dev; | |
1941 | dev_link_t *link; | |
1942 | client_reg_t client_reg; | |
1943 | int i; | |
1944 | ||
1945 | for (i = 0; i < CM4000_MAX_DEV; i++) | |
1946 | if (dev_table[i] == NULL) | |
1947 | break; | |
1948 | ||
1949 | if (i == CM4000_MAX_DEV) { | |
1950 | printk(KERN_NOTICE MODULE_NAME ": all devices in use\n"); | |
1951 | return NULL; | |
1952 | } | |
1953 | ||
1954 | /* create a new cm4000_cs device */ | |
1955 | dev = kzalloc(sizeof(struct cm4000_dev), GFP_KERNEL); | |
1956 | if (dev == NULL) | |
1957 | return NULL; | |
1958 | ||
1959 | link = &dev->link; | |
1960 | link->priv = dev; | |
1961 | link->conf.IntType = INT_MEMORY_AND_IO; | |
1962 | dev_table[i] = link; | |
1963 | ||
1964 | /* register with card services */ | |
1965 | client_reg.dev_info = &dev_info; | |
1966 | client_reg.EventMask = | |
1967 | CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL | | |
1968 | CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET | | |
1969 | CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME; | |
1970 | client_reg.Version = 0x0210; | |
1971 | client_reg.event_callback_args.client_data = link; | |
1972 | ||
1973 | i = pcmcia_register_client(&link->handle, &client_reg); | |
1974 | if (i) { | |
1975 | cs_error(link->handle, RegisterClient, i); | |
1976 | cm4000_detach(link); | |
1977 | return NULL; | |
1978 | } | |
1979 | ||
1980 | init_waitqueue_head(&dev->devq); | |
1981 | init_waitqueue_head(&dev->ioq); | |
1982 | init_waitqueue_head(&dev->atrq); | |
1983 | init_waitqueue_head(&dev->readq); | |
1984 | ||
1985 | return link; | |
1986 | } | |
1987 | ||
1988 | static void cm4000_detach_by_devno(int devno, dev_link_t * link) | |
1989 | { | |
1990 | struct cm4000_dev *dev = link->priv; | |
1991 | ||
1992 | DEBUGP(3, dev, "-> detach_by_devno(devno=%d)\n", devno); | |
1993 | ||
1994 | if (link->state & DEV_CONFIG) { | |
1995 | DEBUGP(5, dev, "device still configured (try to release it)\n"); | |
1996 | cm4000_release(link); | |
1997 | } | |
1998 | ||
1999 | if (link->handle) { | |
2000 | pcmcia_deregister_client(link->handle); | |
2001 | } | |
2002 | ||
2003 | dev_table[devno] = NULL; | |
2004 | kfree(dev); | |
2005 | return; | |
2006 | } | |
2007 | ||
2008 | static void cm4000_detach(dev_link_t * link) | |
2009 | { | |
2010 | int i; | |
2011 | ||
2012 | /* find device */ | |
2013 | for (i = 0; i < CM4000_MAX_DEV; i++) | |
2014 | if (dev_table[i] == link) | |
2015 | break; | |
2016 | ||
2017 | if (i == CM4000_MAX_DEV) | |
2018 | return; | |
2019 | ||
2020 | cm4000_detach_by_devno(i, link); | |
2021 | return; | |
2022 | } | |
2023 | ||
2024 | static struct file_operations cm4000_fops = { | |
2025 | .owner = THIS_MODULE, | |
2026 | .read = cmm_read, | |
2027 | .write = cmm_write, | |
2028 | .ioctl = cmm_ioctl, | |
2029 | .open = cmm_open, | |
2030 | .release= cmm_close, | |
2031 | }; | |
2032 | ||
2033 | static struct pcmcia_device_id cm4000_ids[] = { | |
2034 | PCMCIA_DEVICE_MANF_CARD(0x0223, 0x0002), | |
2035 | PCMCIA_DEVICE_PROD_ID12("CardMan", "4000", 0x2FB368CA, 0xA2BD8C39), | |
2036 | PCMCIA_DEVICE_NULL, | |
2037 | }; | |
2038 | MODULE_DEVICE_TABLE(pcmcia, cm4000_ids); | |
2039 | ||
2040 | static struct pcmcia_driver cm4000_driver = { | |
2041 | .owner = THIS_MODULE, | |
2042 | .drv = { | |
2043 | .name = "cm4000_cs", | |
2044 | }, | |
2045 | .attach = cm4000_attach, | |
2046 | .detach = cm4000_detach, | |
2047 | .event = cm4000_event, | |
2048 | .id_table = cm4000_ids, | |
2049 | }; | |
2050 | ||
2051 | static int __init cmm_init(void) | |
2052 | { | |
2053 | printk(KERN_INFO "%s\n", version); | |
2054 | pcmcia_register_driver(&cm4000_driver); | |
2055 | major = register_chrdev(0, DEVICE_NAME, &cm4000_fops); | |
2056 | if (major < 0) { | |
2057 | printk(KERN_WARNING MODULE_NAME | |
2058 | ": could not get major number\n"); | |
2059 | return -1; | |
2060 | } | |
2061 | ||
2062 | return 0; | |
2063 | } | |
2064 | ||
2065 | static void __exit cmm_exit(void) | |
2066 | { | |
2067 | int i; | |
2068 | ||
2069 | printk(KERN_INFO MODULE_NAME ": unloading\n"); | |
2070 | pcmcia_unregister_driver(&cm4000_driver); | |
2071 | for (i = 0; i < CM4000_MAX_DEV; i++) | |
2072 | if (dev_table[i]) | |
2073 | cm4000_detach_by_devno(i, dev_table[i]); | |
2074 | unregister_chrdev(major, DEVICE_NAME); | |
2075 | }; | |
2076 | ||
2077 | module_init(cmm_init); | |
2078 | module_exit(cmm_exit); | |
2079 | MODULE_LICENSE("Dual BSD/GPL"); |