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 | * | |
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 | ||
26 | /* #define PCMCIA_DEBUG 6 */ | |
27 | ||
28 | #include <linux/kernel.h> | |
29 | #include <linux/module.h> | |
30 | #include <linux/slab.h> | |
31 | #include <linux/init.h> | |
32 | #include <linux/fs.h> | |
33 | #include <linux/delay.h> | |
34 | #include <asm/uaccess.h> | |
35 | #include <asm/io.h> | |
36 | ||
37 | #include <pcmcia/cs_types.h> | |
38 | #include <pcmcia/cs.h> | |
39 | #include <pcmcia/cistpl.h> | |
40 | #include <pcmcia/cisreg.h> | |
41 | #include <pcmcia/ciscode.h> | |
42 | #include <pcmcia/ds.h> | |
43 | ||
44 | #include <linux/cm4000_cs.h> | |
45 | ||
46 | /* #define ATR_CSUM */ | |
47 | ||
48 | #ifdef PCMCIA_DEBUG | |
fd238232 | 49 | #define reader_to_dev(x) (&handle_to_dev(x->p_dev->handle)) |
c1986ee9 HW |
50 | static int pc_debug = PCMCIA_DEBUG; |
51 | module_param(pc_debug, int, 0600); | |
52 | #define DEBUGP(n, rdr, x, args...) do { \ | |
53 | if (pc_debug >= (n)) \ | |
54 | dev_printk(KERN_DEBUG, reader_to_dev(rdr), "%s:" x, \ | |
55 | __FUNCTION__ , ## args); \ | |
56 | } while (0) | |
57 | #else | |
58 | #define DEBUGP(n, rdr, x, args...) | |
59 | #endif | |
67bc6200 | 60 | static char *version = "cm4000_cs.c v2.4.0gm6 - All bugs added by Harald Welte"; |
c1986ee9 HW |
61 | |
62 | #define T_1SEC (HZ) | |
63 | #define T_10MSEC msecs_to_jiffies(10) | |
64 | #define T_20MSEC msecs_to_jiffies(20) | |
65 | #define T_40MSEC msecs_to_jiffies(40) | |
66 | #define T_50MSEC msecs_to_jiffies(50) | |
67 | #define T_100MSEC msecs_to_jiffies(100) | |
68 | #define T_500MSEC msecs_to_jiffies(500) | |
69 | ||
fba395ee | 70 | static void cm4000_release(struct pcmcia_device *link); |
c1986ee9 HW |
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 { | |
fd238232 | 109 | struct pcmcia_device *p_dev; |
c1986ee9 HW |
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) - \ | |
a2bcce8e | 152 | offsetof(struct cm4000_dev, atr_csum)) |
c1986ee9 | 153 | |
fba395ee | 154 | static struct pcmcia_device *dev_table[CM4000_MAX_DEV]; |
67bc6200 | 155 | static struct class *cmm_class; |
c1986ee9 HW |
156 | |
157 | /* This table doesn't use spaces after the comma between fields and thus | |
158 | * violates CodingStyle. However, I don't really think wrapping it around will | |
159 | * make it any clearer to read -HW */ | |
160 | static unsigned char fi_di_table[10][14] = { | |
161 | /*FI 00 01 02 03 04 05 06 07 08 09 10 11 12 13 */ | |
162 | /*DI */ | |
163 | /* 0 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11}, | |
164 | /* 1 */ {0x01,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x91,0x11,0x11,0x11,0x11}, | |
165 | /* 2 */ {0x02,0x12,0x22,0x32,0x11,0x11,0x11,0x11,0x11,0x92,0xA2,0xB2,0x11,0x11}, | |
166 | /* 3 */ {0x03,0x13,0x23,0x33,0x43,0x53,0x63,0x11,0x11,0x93,0xA3,0xB3,0xC3,0xD3}, | |
167 | /* 4 */ {0x04,0x14,0x24,0x34,0x44,0x54,0x64,0x11,0x11,0x94,0xA4,0xB4,0xC4,0xD4}, | |
168 | /* 5 */ {0x00,0x15,0x25,0x35,0x45,0x55,0x65,0x11,0x11,0x95,0xA5,0xB5,0xC5,0xD5}, | |
169 | /* 6 */ {0x06,0x16,0x26,0x36,0x46,0x56,0x66,0x11,0x11,0x96,0xA6,0xB6,0xC6,0xD6}, | |
170 | /* 7 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11}, | |
171 | /* 8 */ {0x08,0x11,0x28,0x38,0x48,0x58,0x68,0x11,0x11,0x98,0xA8,0xB8,0xC8,0xD8}, | |
172 | /* 9 */ {0x09,0x19,0x29,0x39,0x49,0x59,0x69,0x11,0x11,0x99,0xA9,0xB9,0xC9,0xD9} | |
173 | }; | |
174 | ||
175 | #ifndef PCMCIA_DEBUG | |
176 | #define xoutb outb | |
177 | #define xinb inb | |
178 | #else | |
179 | static inline void xoutb(unsigned char val, unsigned short port) | |
180 | { | |
181 | if (pc_debug >= 7) | |
182 | printk(KERN_DEBUG "outb(val=%.2x,port=%.4x)\n", val, port); | |
183 | outb(val, port); | |
184 | } | |
185 | static inline unsigned char xinb(unsigned short port) | |
186 | { | |
187 | unsigned char val; | |
188 | ||
189 | val = inb(port); | |
190 | if (pc_debug >= 7) | |
191 | printk(KERN_DEBUG "%.2x=inb(%.4x)\n", val, port); | |
192 | ||
193 | return val; | |
194 | } | |
195 | #endif | |
196 | ||
197 | #define b_0000 15 | |
198 | #define b_0001 14 | |
199 | #define b_0010 13 | |
200 | #define b_0011 12 | |
201 | #define b_0100 11 | |
202 | #define b_0101 10 | |
203 | #define b_0110 9 | |
204 | #define b_0111 8 | |
205 | #define b_1000 7 | |
206 | #define b_1001 6 | |
207 | #define b_1010 5 | |
208 | #define b_1011 4 | |
209 | #define b_1100 3 | |
210 | #define b_1101 2 | |
211 | #define b_1110 1 | |
212 | #define b_1111 0 | |
213 | ||
214 | static unsigned char irtab[16] = { | |
215 | b_0000, b_1000, b_0100, b_1100, | |
216 | b_0010, b_1010, b_0110, b_1110, | |
217 | b_0001, b_1001, b_0101, b_1101, | |
218 | b_0011, b_1011, b_0111, b_1111 | |
219 | }; | |
220 | ||
221 | static void str_invert_revert(unsigned char *b, int len) | |
222 | { | |
223 | int i; | |
224 | ||
225 | for (i = 0; i < len; i++) | |
226 | b[i] = (irtab[b[i] & 0x0f] << 4) | irtab[b[i] >> 4]; | |
227 | } | |
228 | ||
229 | static unsigned char invert_revert(unsigned char ch) | |
230 | { | |
231 | return (irtab[ch & 0x0f] << 4) | irtab[ch >> 4]; | |
232 | } | |
233 | ||
234 | #define ATRLENCK(dev,pos) \ | |
235 | if (pos>=dev->atr_len || pos>=MAX_ATR) \ | |
236 | goto return_0; | |
237 | ||
238 | static unsigned int calc_baudv(unsigned char fidi) | |
239 | { | |
240 | unsigned int wcrcf, wbrcf, fi_rfu, di_rfu; | |
241 | ||
242 | fi_rfu = 372; | |
243 | di_rfu = 1; | |
244 | ||
245 | /* FI */ | |
246 | switch ((fidi >> 4) & 0x0F) { | |
247 | case 0x00: | |
248 | wcrcf = 372; | |
249 | break; | |
250 | case 0x01: | |
251 | wcrcf = 372; | |
252 | break; | |
253 | case 0x02: | |
254 | wcrcf = 558; | |
255 | break; | |
256 | case 0x03: | |
257 | wcrcf = 744; | |
258 | break; | |
259 | case 0x04: | |
260 | wcrcf = 1116; | |
261 | break; | |
262 | case 0x05: | |
263 | wcrcf = 1488; | |
264 | break; | |
265 | case 0x06: | |
266 | wcrcf = 1860; | |
267 | break; | |
268 | case 0x07: | |
269 | wcrcf = fi_rfu; | |
270 | break; | |
271 | case 0x08: | |
272 | wcrcf = fi_rfu; | |
273 | break; | |
274 | case 0x09: | |
275 | wcrcf = 512; | |
276 | break; | |
277 | case 0x0A: | |
278 | wcrcf = 768; | |
279 | break; | |
280 | case 0x0B: | |
281 | wcrcf = 1024; | |
282 | break; | |
283 | case 0x0C: | |
284 | wcrcf = 1536; | |
285 | break; | |
286 | case 0x0D: | |
287 | wcrcf = 2048; | |
288 | break; | |
289 | default: | |
290 | wcrcf = fi_rfu; | |
291 | break; | |
292 | } | |
293 | ||
294 | /* DI */ | |
295 | switch (fidi & 0x0F) { | |
296 | case 0x00: | |
297 | wbrcf = di_rfu; | |
298 | break; | |
299 | case 0x01: | |
300 | wbrcf = 1; | |
301 | break; | |
302 | case 0x02: | |
303 | wbrcf = 2; | |
304 | break; | |
305 | case 0x03: | |
306 | wbrcf = 4; | |
307 | break; | |
308 | case 0x04: | |
309 | wbrcf = 8; | |
310 | break; | |
311 | case 0x05: | |
312 | wbrcf = 16; | |
313 | break; | |
314 | case 0x06: | |
315 | wbrcf = 32; | |
316 | break; | |
317 | case 0x07: | |
318 | wbrcf = di_rfu; | |
319 | break; | |
320 | case 0x08: | |
321 | wbrcf = 12; | |
322 | break; | |
323 | case 0x09: | |
324 | wbrcf = 20; | |
325 | break; | |
326 | default: | |
327 | wbrcf = di_rfu; | |
328 | break; | |
329 | } | |
330 | ||
331 | return (wcrcf / wbrcf); | |
332 | } | |
333 | ||
334 | static unsigned short io_read_num_rec_bytes(ioaddr_t iobase, unsigned short *s) | |
335 | { | |
336 | unsigned short tmp; | |
337 | ||
338 | tmp = *s = 0; | |
339 | do { | |
340 | *s = tmp; | |
341 | tmp = inb(REG_NUM_BYTES(iobase)) | | |
342 | (inb(REG_FLAGS0(iobase)) & 4 ? 0x100 : 0); | |
343 | } while (tmp != *s); | |
344 | ||
345 | return *s; | |
346 | } | |
347 | ||
348 | static int parse_atr(struct cm4000_dev *dev) | |
349 | { | |
350 | unsigned char any_t1, any_t0; | |
351 | unsigned char ch, ifno; | |
352 | int ix, done; | |
353 | ||
354 | DEBUGP(3, dev, "-> parse_atr: dev->atr_len = %i\n", dev->atr_len); | |
355 | ||
356 | if (dev->atr_len < 3) { | |
357 | DEBUGP(5, dev, "parse_atr: atr_len < 3\n"); | |
358 | return 0; | |
359 | } | |
360 | ||
361 | if (dev->atr[0] == 0x3f) | |
362 | set_bit(IS_INVREV, &dev->flags); | |
363 | else | |
364 | clear_bit(IS_INVREV, &dev->flags); | |
365 | ix = 1; | |
366 | ifno = 1; | |
367 | ch = dev->atr[1]; | |
368 | dev->proto = 0; /* XXX PROTO */ | |
369 | any_t1 = any_t0 = done = 0; | |
370 | dev->ta1 = 0x11; /* defaults to 9600 baud */ | |
371 | do { | |
372 | if (ifno == 1 && (ch & 0x10)) { | |
373 | /* read first interface byte and TA1 is present */ | |
374 | dev->ta1 = dev->atr[2]; | |
375 | DEBUGP(5, dev, "Card says FiDi is 0x%.2x\n", dev->ta1); | |
376 | ifno++; | |
377 | } else if ((ifno == 2) && (ch & 0x10)) { /* TA(2) */ | |
378 | dev->ta1 = 0x11; | |
379 | ifno++; | |
380 | } | |
381 | ||
382 | DEBUGP(5, dev, "Yi=%.2x\n", ch & 0xf0); | |
383 | ix += ((ch & 0x10) >> 4) /* no of int.face chars */ | |
384 | +((ch & 0x20) >> 5) | |
385 | + ((ch & 0x40) >> 6) | |
386 | + ((ch & 0x80) >> 7); | |
387 | /* ATRLENCK(dev,ix); */ | |
388 | if (ch & 0x80) { /* TDi */ | |
389 | ch = dev->atr[ix]; | |
390 | if ((ch & 0x0f)) { | |
391 | any_t1 = 1; | |
392 | DEBUGP(5, dev, "card is capable of T=1\n"); | |
393 | } else { | |
394 | any_t0 = 1; | |
395 | DEBUGP(5, dev, "card is capable of T=0\n"); | |
396 | } | |
397 | } else | |
398 | done = 1; | |
399 | } while (!done); | |
400 | ||
401 | DEBUGP(5, dev, "ix=%d noHist=%d any_t1=%d\n", | |
402 | ix, dev->atr[1] & 15, any_t1); | |
403 | if (ix + 1 + (dev->atr[1] & 0x0f) + any_t1 != dev->atr_len) { | |
404 | DEBUGP(5, dev, "length error\n"); | |
405 | return 0; | |
406 | } | |
407 | if (any_t0) | |
408 | set_bit(IS_ANY_T0, &dev->flags); | |
409 | ||
410 | if (any_t1) { /* compute csum */ | |
411 | dev->atr_csum = 0; | |
412 | #ifdef ATR_CSUM | |
413 | for (i = 1; i < dev->atr_len; i++) | |
414 | dev->atr_csum ^= dev->atr[i]; | |
415 | if (dev->atr_csum) { | |
416 | set_bit(IS_BAD_CSUM, &dev->flags); | |
417 | DEBUGP(5, dev, "bad checksum\n"); | |
418 | goto return_0; | |
419 | } | |
420 | #endif | |
421 | if (any_t0 == 0) | |
422 | dev->proto = 1; /* XXX PROTO */ | |
423 | set_bit(IS_ANY_T1, &dev->flags); | |
424 | } | |
425 | ||
426 | return 1; | |
427 | } | |
428 | ||
429 | struct card_fixup { | |
430 | char atr[12]; | |
431 | u_int8_t atr_len; | |
432 | u_int8_t stopbits; | |
433 | }; | |
434 | ||
435 | static struct card_fixup card_fixups[] = { | |
436 | { /* ACOS */ | |
437 | .atr = { 0x3b, 0xb3, 0x11, 0x00, 0x00, 0x41, 0x01 }, | |
438 | .atr_len = 7, | |
439 | .stopbits = 0x03, | |
440 | }, | |
441 | { /* Motorola */ | |
442 | .atr = {0x3b, 0x76, 0x13, 0x00, 0x00, 0x80, 0x62, 0x07, | |
443 | 0x41, 0x81, 0x81 }, | |
444 | .atr_len = 11, | |
445 | .stopbits = 0x04, | |
446 | }, | |
447 | }; | |
448 | ||
449 | static void set_cardparameter(struct cm4000_dev *dev) | |
450 | { | |
451 | int i; | |
fd238232 | 452 | ioaddr_t iobase = dev->p_dev->io.BasePort1; |
c1986ee9 HW |
453 | u_int8_t stopbits = 0x02; /* ISO default */ |
454 | ||
455 | DEBUGP(3, dev, "-> set_cardparameter\n"); | |
456 | ||
457 | dev->flags1 = dev->flags1 | (((dev->baudv - 1) & 0x0100) >> 8); | |
458 | xoutb(dev->flags1, REG_FLAGS1(iobase)); | |
459 | DEBUGP(5, dev, "flags1 = 0x%02x\n", dev->flags1); | |
460 | ||
461 | /* set baudrate */ | |
462 | xoutb((unsigned char)((dev->baudv - 1) & 0xFF), REG_BAUDRATE(iobase)); | |
463 | ||
464 | DEBUGP(5, dev, "baudv = %i -> write 0x%02x\n", dev->baudv, | |
465 | ((dev->baudv - 1) & 0xFF)); | |
466 | ||
467 | /* set stopbits */ | |
468 | for (i = 0; i < ARRAY_SIZE(card_fixups); i++) { | |
469 | if (!memcmp(dev->atr, card_fixups[i].atr, | |
470 | card_fixups[i].atr_len)) | |
471 | stopbits = card_fixups[i].stopbits; | |
472 | } | |
473 | xoutb(stopbits, REG_STOPBITS(iobase)); | |
474 | ||
475 | DEBUGP(3, dev, "<- set_cardparameter\n"); | |
476 | } | |
477 | ||
478 | static int set_protocol(struct cm4000_dev *dev, struct ptsreq *ptsreq) | |
479 | { | |
480 | ||
481 | unsigned long tmp, i; | |
482 | unsigned short num_bytes_read; | |
483 | unsigned char pts_reply[4]; | |
484 | ssize_t rc; | |
fd238232 | 485 | ioaddr_t iobase = dev->p_dev->io.BasePort1; |
c1986ee9 HW |
486 | |
487 | rc = 0; | |
488 | ||
489 | DEBUGP(3, dev, "-> set_protocol\n"); | |
490 | DEBUGP(5, dev, "ptsreq->Protocol = 0x%.8x, ptsreq->Flags=0x%.8x, " | |
491 | "ptsreq->pts1=0x%.2x, ptsreq->pts2=0x%.2x, " | |
492 | "ptsreq->pts3=0x%.2x\n", (unsigned int)ptsreq->protocol, | |
493 | (unsigned int)ptsreq->flags, ptsreq->pts1, ptsreq->pts2, | |
494 | ptsreq->pts3); | |
495 | ||
496 | /* Fill PTS structure */ | |
497 | dev->pts[0] = 0xff; | |
498 | dev->pts[1] = 0x00; | |
499 | tmp = ptsreq->protocol; | |
500 | while ((tmp = (tmp >> 1)) > 0) | |
501 | dev->pts[1]++; | |
502 | dev->proto = dev->pts[1]; /* Set new protocol */ | |
503 | dev->pts[1] = (0x01 << 4) | (dev->pts[1]); | |
504 | ||
505 | /* Correct Fi/Di according to CM4000 Fi/Di table */ | |
506 | DEBUGP(5, dev, "Ta(1) from ATR is 0x%.2x\n", dev->ta1); | |
507 | /* set Fi/Di according to ATR TA(1) */ | |
508 | dev->pts[2] = fi_di_table[dev->ta1 & 0x0F][(dev->ta1 >> 4) & 0x0F]; | |
509 | ||
510 | /* Calculate PCK character */ | |
511 | dev->pts[3] = dev->pts[0] ^ dev->pts[1] ^ dev->pts[2]; | |
512 | ||
513 | DEBUGP(5, dev, "pts0=%.2x, pts1=%.2x, pts2=%.2x, pts3=%.2x\n", | |
514 | dev->pts[0], dev->pts[1], dev->pts[2], dev->pts[3]); | |
515 | ||
516 | /* check card convention */ | |
517 | if (test_bit(IS_INVREV, &dev->flags)) | |
518 | str_invert_revert(dev->pts, 4); | |
519 | ||
520 | /* reset SM */ | |
521 | xoutb(0x80, REG_FLAGS0(iobase)); | |
522 | ||
523 | /* Enable access to the message buffer */ | |
524 | DEBUGP(5, dev, "Enable access to the messages buffer\n"); | |
525 | dev->flags1 = 0x20 /* T_Active */ | |
526 | | (test_bit(IS_INVREV, &dev->flags) ? 0x02 : 0x00) /* inv parity */ | |
527 | | ((dev->baudv >> 8) & 0x01); /* MSB-baud */ | |
528 | xoutb(dev->flags1, REG_FLAGS1(iobase)); | |
529 | ||
530 | DEBUGP(5, dev, "Enable message buffer -> flags1 = 0x%.2x\n", | |
531 | dev->flags1); | |
532 | ||
533 | /* write challenge to the buffer */ | |
534 | DEBUGP(5, dev, "Write challenge to buffer: "); | |
535 | for (i = 0; i < 4; i++) { | |
536 | xoutb(i, REG_BUF_ADDR(iobase)); | |
537 | xoutb(dev->pts[i], REG_BUF_DATA(iobase)); /* buf data */ | |
538 | #ifdef PCMCIA_DEBUG | |
539 | if (pc_debug >= 5) | |
540 | printk("0x%.2x ", dev->pts[i]); | |
541 | } | |
542 | if (pc_debug >= 5) | |
543 | printk("\n"); | |
544 | #else | |
545 | } | |
546 | #endif | |
547 | ||
548 | /* set number of bytes to write */ | |
549 | DEBUGP(5, dev, "Set number of bytes to write\n"); | |
550 | xoutb(0x04, REG_NUM_SEND(iobase)); | |
551 | ||
552 | /* Trigger CARDMAN CONTROLLER */ | |
553 | xoutb(0x50, REG_FLAGS0(iobase)); | |
554 | ||
555 | /* Monitor progress */ | |
556 | /* wait for xmit done */ | |
557 | DEBUGP(5, dev, "Waiting for NumRecBytes getting valid\n"); | |
558 | ||
559 | for (i = 0; i < 100; i++) { | |
560 | if (inb(REG_FLAGS0(iobase)) & 0x08) { | |
561 | DEBUGP(5, dev, "NumRecBytes is valid\n"); | |
562 | break; | |
563 | } | |
564 | mdelay(10); | |
565 | } | |
566 | if (i == 100) { | |
567 | DEBUGP(5, dev, "Timeout waiting for NumRecBytes getting " | |
568 | "valid\n"); | |
569 | rc = -EIO; | |
570 | goto exit_setprotocol; | |
571 | } | |
572 | ||
573 | DEBUGP(5, dev, "Reading NumRecBytes\n"); | |
574 | for (i = 0; i < 100; i++) { | |
575 | io_read_num_rec_bytes(iobase, &num_bytes_read); | |
576 | if (num_bytes_read >= 4) { | |
577 | DEBUGP(2, dev, "NumRecBytes = %i\n", num_bytes_read); | |
578 | break; | |
579 | } | |
580 | mdelay(10); | |
581 | } | |
582 | ||
583 | /* check whether it is a short PTS reply? */ | |
584 | if (num_bytes_read == 3) | |
585 | i = 0; | |
586 | ||
587 | if (i == 100) { | |
588 | DEBUGP(5, dev, "Timeout reading num_bytes_read\n"); | |
589 | rc = -EIO; | |
590 | goto exit_setprotocol; | |
591 | } | |
592 | ||
593 | DEBUGP(5, dev, "Reset the CARDMAN CONTROLLER\n"); | |
594 | xoutb(0x80, REG_FLAGS0(iobase)); | |
595 | ||
596 | /* Read PPS reply */ | |
597 | DEBUGP(5, dev, "Read PPS reply\n"); | |
598 | for (i = 0; i < num_bytes_read; i++) { | |
599 | xoutb(i, REG_BUF_ADDR(iobase)); | |
600 | pts_reply[i] = inb(REG_BUF_DATA(iobase)); | |
601 | } | |
602 | ||
603 | #ifdef PCMCIA_DEBUG | |
604 | DEBUGP(2, dev, "PTSreply: "); | |
605 | for (i = 0; i < num_bytes_read; i++) { | |
606 | if (pc_debug >= 5) | |
607 | printk("0x%.2x ", pts_reply[i]); | |
608 | } | |
609 | printk("\n"); | |
610 | #endif /* PCMCIA_DEBUG */ | |
611 | ||
612 | DEBUGP(5, dev, "Clear Tactive in Flags1\n"); | |
613 | xoutb(0x20, REG_FLAGS1(iobase)); | |
614 | ||
615 | /* Compare ptsreq and ptsreply */ | |
616 | if ((dev->pts[0] == pts_reply[0]) && | |
617 | (dev->pts[1] == pts_reply[1]) && | |
618 | (dev->pts[2] == pts_reply[2]) && (dev->pts[3] == pts_reply[3])) { | |
619 | /* setcardparameter according to PPS */ | |
620 | dev->baudv = calc_baudv(dev->pts[2]); | |
621 | set_cardparameter(dev); | |
622 | } else if ((dev->pts[0] == pts_reply[0]) && | |
623 | ((dev->pts[1] & 0xef) == pts_reply[1]) && | |
624 | ((pts_reply[0] ^ pts_reply[1]) == pts_reply[2])) { | |
625 | /* short PTS reply, set card parameter to default values */ | |
626 | dev->baudv = calc_baudv(0x11); | |
627 | set_cardparameter(dev); | |
628 | } else | |
629 | rc = -EIO; | |
630 | ||
631 | exit_setprotocol: | |
632 | DEBUGP(3, dev, "<- set_protocol\n"); | |
633 | return rc; | |
634 | } | |
635 | ||
636 | static int io_detect_cm4000(ioaddr_t iobase, struct cm4000_dev *dev) | |
637 | { | |
638 | ||
639 | /* note: statemachine is assumed to be reset */ | |
640 | if (inb(REG_FLAGS0(iobase)) & 8) { | |
641 | clear_bit(IS_ATR_VALID, &dev->flags); | |
642 | set_bit(IS_CMM_ABSENT, &dev->flags); | |
643 | return 0; /* detect CMM = 1 -> failure */ | |
644 | } | |
645 | /* xoutb(0x40, REG_FLAGS1(iobase)); detectCMM */ | |
646 | xoutb(dev->flags1 | 0x40, REG_FLAGS1(iobase)); | |
647 | if ((inb(REG_FLAGS0(iobase)) & 8) == 0) { | |
648 | clear_bit(IS_ATR_VALID, &dev->flags); | |
649 | set_bit(IS_CMM_ABSENT, &dev->flags); | |
650 | return 0; /* detect CMM=0 -> failure */ | |
651 | } | |
652 | /* clear detectCMM again by restoring original flags1 */ | |
653 | xoutb(dev->flags1, REG_FLAGS1(iobase)); | |
654 | return 1; | |
655 | } | |
656 | ||
657 | static void terminate_monitor(struct cm4000_dev *dev) | |
658 | { | |
659 | ||
660 | /* tell the monitor to stop and wait until | |
661 | * it terminates. | |
662 | */ | |
663 | DEBUGP(3, dev, "-> terminate_monitor\n"); | |
664 | wait_event_interruptible(dev->devq, | |
665 | test_and_set_bit(LOCK_MONITOR, | |
666 | (void *)&dev->flags)); | |
667 | ||
668 | /* now, LOCK_MONITOR has been set. | |
669 | * allow a last cycle in the monitor. | |
670 | * the monitor will indicate that it has | |
671 | * finished by clearing this bit. | |
672 | */ | |
673 | DEBUGP(5, dev, "Now allow last cycle of monitor!\n"); | |
674 | while (test_bit(LOCK_MONITOR, (void *)&dev->flags)) | |
675 | msleep(25); | |
676 | ||
677 | DEBUGP(5, dev, "Delete timer\n"); | |
678 | del_timer_sync(&dev->timer); | |
679 | #ifdef PCMCIA_DEBUG | |
680 | dev->monitor_running = 0; | |
681 | #endif | |
682 | ||
683 | DEBUGP(3, dev, "<- terminate_monitor\n"); | |
684 | } | |
685 | ||
686 | /* | |
687 | * monitor the card every 50msec. as a side-effect, retrieve the | |
688 | * atr once a card is inserted. another side-effect of retrieving the | |
689 | * atr is that the card will be powered on, so there is no need to | |
690 | * power on the card explictely from the application: the driver | |
691 | * is already doing that for you. | |
692 | */ | |
693 | ||
694 | static void monitor_card(unsigned long p) | |
695 | { | |
696 | struct cm4000_dev *dev = (struct cm4000_dev *) p; | |
fd238232 | 697 | ioaddr_t iobase = dev->p_dev->io.BasePort1; |
c1986ee9 HW |
698 | unsigned short s; |
699 | struct ptsreq ptsreq; | |
700 | int i, atrc; | |
701 | ||
702 | DEBUGP(7, dev, "-> monitor_card\n"); | |
703 | ||
704 | /* if someone has set the lock for us: we're done! */ | |
705 | if (test_and_set_bit(LOCK_MONITOR, &dev->flags)) { | |
706 | DEBUGP(4, dev, "About to stop monitor\n"); | |
707 | /* no */ | |
708 | dev->rlen = | |
709 | dev->rpos = | |
710 | dev->atr_csum = dev->atr_len_retry = dev->cwarn = 0; | |
711 | dev->mstate = M_FETCH_ATR; | |
712 | clear_bit(LOCK_MONITOR, &dev->flags); | |
713 | /* close et al. are sleeping on devq, so wake it */ | |
714 | wake_up_interruptible(&dev->devq); | |
715 | DEBUGP(2, dev, "<- monitor_card (we are done now)\n"); | |
716 | return; | |
717 | } | |
718 | ||
719 | /* try to lock io: if it is already locked, just add another timer */ | |
720 | if (test_and_set_bit(LOCK_IO, (void *)&dev->flags)) { | |
721 | DEBUGP(4, dev, "Couldn't get IO lock\n"); | |
722 | goto return_with_timer; | |
723 | } | |
724 | ||
725 | /* is a card/a reader inserted at all ? */ | |
726 | dev->flags0 = xinb(REG_FLAGS0(iobase)); | |
727 | DEBUGP(7, dev, "dev->flags0 = 0x%2x\n", dev->flags0); | |
728 | DEBUGP(7, dev, "smartcard present: %s\n", | |
729 | dev->flags0 & 1 ? "yes" : "no"); | |
730 | DEBUGP(7, dev, "cardman present: %s\n", | |
731 | dev->flags0 == 0xff ? "no" : "yes"); | |
732 | ||
733 | if ((dev->flags0 & 1) == 0 /* no smartcard inserted */ | |
734 | || dev->flags0 == 0xff) { /* no cardman inserted */ | |
735 | /* no */ | |
736 | dev->rlen = | |
737 | dev->rpos = | |
738 | dev->atr_csum = dev->atr_len_retry = dev->cwarn = 0; | |
739 | dev->mstate = M_FETCH_ATR; | |
740 | ||
741 | dev->flags &= 0x000000ff; /* only keep IO and MONITOR locks */ | |
742 | ||
743 | if (dev->flags0 == 0xff) { | |
744 | DEBUGP(4, dev, "set IS_CMM_ABSENT bit\n"); | |
745 | set_bit(IS_CMM_ABSENT, &dev->flags); | |
746 | } else if (test_bit(IS_CMM_ABSENT, &dev->flags)) { | |
747 | DEBUGP(4, dev, "clear IS_CMM_ABSENT bit " | |
748 | "(card is removed)\n"); | |
749 | clear_bit(IS_CMM_ABSENT, &dev->flags); | |
750 | } | |
751 | ||
752 | goto release_io; | |
753 | } else if ((dev->flags0 & 1) && test_bit(IS_CMM_ABSENT, &dev->flags)) { | |
754 | /* cardman and card present but cardman was absent before | |
755 | * (after suspend with inserted card) */ | |
756 | DEBUGP(4, dev, "clear IS_CMM_ABSENT bit (card is inserted)\n"); | |
757 | clear_bit(IS_CMM_ABSENT, &dev->flags); | |
758 | } | |
759 | ||
760 | if (test_bit(IS_ATR_VALID, &dev->flags) == 1) { | |
761 | DEBUGP(7, dev, "believe ATR is already valid (do nothing)\n"); | |
762 | goto release_io; | |
763 | } | |
764 | ||
765 | switch (dev->mstate) { | |
766 | unsigned char flags0; | |
767 | case M_CARDOFF: | |
768 | DEBUGP(4, dev, "M_CARDOFF\n"); | |
769 | flags0 = inb(REG_FLAGS0(iobase)); | |
770 | if (flags0 & 0x02) { | |
771 | /* wait until Flags0 indicate power is off */ | |
772 | dev->mdelay = T_10MSEC; | |
773 | } else { | |
774 | /* Flags0 indicate power off and no card inserted now; | |
775 | * Reset CARDMAN CONTROLLER */ | |
776 | xoutb(0x80, REG_FLAGS0(iobase)); | |
777 | ||
778 | /* prepare for fetching ATR again: after card off ATR | |
779 | * is read again automatically */ | |
780 | dev->rlen = | |
781 | dev->rpos = | |
782 | dev->atr_csum = | |
783 | dev->atr_len_retry = dev->cwarn = 0; | |
784 | dev->mstate = M_FETCH_ATR; | |
785 | ||
786 | /* minimal gap between CARDOFF and read ATR is 50msec */ | |
787 | dev->mdelay = T_50MSEC; | |
788 | } | |
789 | break; | |
790 | case M_FETCH_ATR: | |
791 | DEBUGP(4, dev, "M_FETCH_ATR\n"); | |
792 | xoutb(0x80, REG_FLAGS0(iobase)); | |
793 | DEBUGP(4, dev, "Reset BAUDV to 9600\n"); | |
794 | dev->baudv = 0x173; /* 9600 */ | |
795 | xoutb(0x02, REG_STOPBITS(iobase)); /* stopbits=2 */ | |
796 | xoutb(0x73, REG_BAUDRATE(iobase)); /* baud value */ | |
797 | xoutb(0x21, REG_FLAGS1(iobase)); /* T_Active=1, baud | |
798 | value */ | |
799 | /* warm start vs. power on: */ | |
800 | xoutb(dev->flags0 & 2 ? 0x46 : 0x44, REG_FLAGS0(iobase)); | |
801 | dev->mdelay = T_40MSEC; | |
802 | dev->mstate = M_TIMEOUT_WAIT; | |
803 | break; | |
804 | case M_TIMEOUT_WAIT: | |
805 | DEBUGP(4, dev, "M_TIMEOUT_WAIT\n"); | |
806 | /* numRecBytes */ | |
807 | io_read_num_rec_bytes(iobase, &dev->atr_len); | |
808 | dev->mdelay = T_10MSEC; | |
809 | dev->mstate = M_READ_ATR_LEN; | |
810 | break; | |
811 | case M_READ_ATR_LEN: | |
812 | DEBUGP(4, dev, "M_READ_ATR_LEN\n"); | |
813 | /* infinite loop possible, since there is no timeout */ | |
814 | ||
815 | #define MAX_ATR_LEN_RETRY 100 | |
816 | ||
817 | if (dev->atr_len == io_read_num_rec_bytes(iobase, &s)) { | |
818 | if (dev->atr_len_retry++ >= MAX_ATR_LEN_RETRY) { /* + XX msec */ | |
819 | dev->mdelay = T_10MSEC; | |
820 | dev->mstate = M_READ_ATR; | |
821 | } | |
822 | } else { | |
823 | dev->atr_len = s; | |
824 | dev->atr_len_retry = 0; /* set new timeout */ | |
825 | } | |
826 | ||
827 | DEBUGP(4, dev, "Current ATR_LEN = %i\n", dev->atr_len); | |
828 | break; | |
829 | case M_READ_ATR: | |
830 | DEBUGP(4, dev, "M_READ_ATR\n"); | |
831 | xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */ | |
832 | for (i = 0; i < dev->atr_len; i++) { | |
833 | xoutb(i, REG_BUF_ADDR(iobase)); | |
834 | dev->atr[i] = inb(REG_BUF_DATA(iobase)); | |
835 | } | |
836 | /* Deactivate T_Active flags */ | |
837 | DEBUGP(4, dev, "Deactivate T_Active flags\n"); | |
838 | dev->flags1 = 0x01; | |
839 | xoutb(dev->flags1, REG_FLAGS1(iobase)); | |
840 | ||
841 | /* atr is present (which doesnt mean it's valid) */ | |
842 | set_bit(IS_ATR_PRESENT, &dev->flags); | |
843 | if (dev->atr[0] == 0x03) | |
844 | str_invert_revert(dev->atr, dev->atr_len); | |
845 | atrc = parse_atr(dev); | |
846 | if (atrc == 0) { /* atr invalid */ | |
847 | dev->mdelay = 0; | |
848 | dev->mstate = M_BAD_CARD; | |
849 | } else { | |
850 | dev->mdelay = T_50MSEC; | |
851 | dev->mstate = M_ATR_PRESENT; | |
852 | set_bit(IS_ATR_VALID, &dev->flags); | |
853 | } | |
854 | ||
855 | if (test_bit(IS_ATR_VALID, &dev->flags) == 1) { | |
856 | DEBUGP(4, dev, "monitor_card: ATR valid\n"); | |
857 | /* if ta1 == 0x11, no PPS necessary (default values) */ | |
858 | /* do not do PPS with multi protocol cards */ | |
859 | if ((test_bit(IS_AUTOPPS_ACT, &dev->flags) == 0) && | |
860 | (dev->ta1 != 0x11) && | |
861 | !(test_bit(IS_ANY_T0, &dev->flags) && | |
862 | test_bit(IS_ANY_T1, &dev->flags))) { | |
863 | DEBUGP(4, dev, "Perform AUTOPPS\n"); | |
864 | set_bit(IS_AUTOPPS_ACT, &dev->flags); | |
865 | ptsreq.protocol = ptsreq.protocol = | |
866 | (0x01 << dev->proto); | |
867 | ptsreq.flags = 0x01; | |
868 | ptsreq.pts1 = 0x00; | |
869 | ptsreq.pts2 = 0x00; | |
870 | ptsreq.pts3 = 0x00; | |
871 | if (set_protocol(dev, &ptsreq) == 0) { | |
872 | DEBUGP(4, dev, "AUTOPPS ret SUCC\n"); | |
873 | clear_bit(IS_AUTOPPS_ACT, &dev->flags); | |
874 | wake_up_interruptible(&dev->atrq); | |
875 | } else { | |
876 | DEBUGP(4, dev, "AUTOPPS failed: " | |
877 | "repower using defaults\n"); | |
878 | /* prepare for repowering */ | |
879 | clear_bit(IS_ATR_PRESENT, &dev->flags); | |
880 | clear_bit(IS_ATR_VALID, &dev->flags); | |
881 | dev->rlen = | |
882 | dev->rpos = | |
883 | dev->atr_csum = | |
884 | dev->atr_len_retry = dev->cwarn = 0; | |
885 | dev->mstate = M_FETCH_ATR; | |
886 | ||
887 | dev->mdelay = T_50MSEC; | |
888 | } | |
889 | } else { | |
890 | /* for cards which use slightly different | |
891 | * params (extra guard time) */ | |
892 | set_cardparameter(dev); | |
893 | if (test_bit(IS_AUTOPPS_ACT, &dev->flags) == 1) | |
894 | DEBUGP(4, dev, "AUTOPPS already active " | |
895 | "2nd try:use default values\n"); | |
896 | if (dev->ta1 == 0x11) | |
897 | DEBUGP(4, dev, "No AUTOPPS necessary " | |
898 | "TA(1)==0x11\n"); | |
899 | if (test_bit(IS_ANY_T0, &dev->flags) | |
900 | && test_bit(IS_ANY_T1, &dev->flags)) | |
901 | DEBUGP(4, dev, "Do NOT perform AUTOPPS " | |
902 | "with multiprotocol cards\n"); | |
903 | clear_bit(IS_AUTOPPS_ACT, &dev->flags); | |
904 | wake_up_interruptible(&dev->atrq); | |
905 | } | |
906 | } else { | |
907 | DEBUGP(4, dev, "ATR invalid\n"); | |
908 | wake_up_interruptible(&dev->atrq); | |
909 | } | |
910 | break; | |
911 | case M_BAD_CARD: | |
912 | DEBUGP(4, dev, "M_BAD_CARD\n"); | |
913 | /* slow down warning, but prompt immediately after insertion */ | |
914 | if (dev->cwarn == 0 || dev->cwarn == 10) { | |
915 | set_bit(IS_BAD_CARD, &dev->flags); | |
916 | printk(KERN_WARNING MODULE_NAME ": device %s: ", | |
917 | dev->node.dev_name); | |
918 | if (test_bit(IS_BAD_CSUM, &dev->flags)) { | |
919 | DEBUGP(4, dev, "ATR checksum (0x%.2x, should " | |
920 | "be zero) failed\n", dev->atr_csum); | |
921 | } | |
922 | #ifdef PCMCIA_DEBUG | |
923 | else if (test_bit(IS_BAD_LENGTH, &dev->flags)) { | |
924 | DEBUGP(4, dev, "ATR length error\n"); | |
925 | } else { | |
926 | DEBUGP(4, dev, "card damaged or wrong way " | |
927 | "inserted\n"); | |
928 | } | |
929 | #endif | |
930 | dev->cwarn = 0; | |
931 | wake_up_interruptible(&dev->atrq); /* wake open */ | |
932 | } | |
933 | dev->cwarn++; | |
934 | dev->mdelay = T_100MSEC; | |
935 | dev->mstate = M_FETCH_ATR; | |
936 | break; | |
937 | default: | |
938 | DEBUGP(7, dev, "Unknown action\n"); | |
939 | break; /* nothing */ | |
940 | } | |
941 | ||
942 | release_io: | |
943 | DEBUGP(7, dev, "release_io\n"); | |
944 | clear_bit(LOCK_IO, &dev->flags); | |
945 | wake_up_interruptible(&dev->ioq); /* whoever needs IO */ | |
946 | ||
947 | return_with_timer: | |
948 | DEBUGP(7, dev, "<- monitor_card (returns with timer)\n"); | |
40565f19 | 949 | mod_timer(&dev->timer, jiffies + dev->mdelay); |
c1986ee9 HW |
950 | clear_bit(LOCK_MONITOR, &dev->flags); |
951 | } | |
952 | ||
953 | /* Interface to userland (file_operations) */ | |
954 | ||
955 | static ssize_t cmm_read(struct file *filp, __user char *buf, size_t count, | |
956 | loff_t *ppos) | |
957 | { | |
958 | struct cm4000_dev *dev = filp->private_data; | |
fd238232 | 959 | ioaddr_t iobase = dev->p_dev->io.BasePort1; |
c1986ee9 HW |
960 | ssize_t rc; |
961 | int i, j, k; | |
962 | ||
963 | DEBUGP(2, dev, "-> cmm_read(%s,%d)\n", current->comm, current->pid); | |
964 | ||
965 | if (count == 0) /* according to manpage */ | |
966 | return 0; | |
967 | ||
e2d40963 | 968 | if (!pcmcia_dev_present(dev->p_dev) || /* device removed */ |
c1986ee9 HW |
969 | test_bit(IS_CMM_ABSENT, &dev->flags)) |
970 | return -ENODEV; | |
971 | ||
972 | if (test_bit(IS_BAD_CSUM, &dev->flags)) | |
973 | return -EIO; | |
974 | ||
975 | /* also see the note about this in cmm_write */ | |
976 | if (wait_event_interruptible | |
977 | (dev->atrq, | |
978 | ((filp->f_flags & O_NONBLOCK) | |
979 | || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) { | |
980 | if (filp->f_flags & O_NONBLOCK) | |
981 | return -EAGAIN; | |
982 | return -ERESTARTSYS; | |
983 | } | |
984 | ||
985 | if (test_bit(IS_ATR_VALID, &dev->flags) == 0) | |
986 | return -EIO; | |
987 | ||
988 | /* this one implements blocking IO */ | |
989 | if (wait_event_interruptible | |
990 | (dev->readq, | |
991 | ((filp->f_flags & O_NONBLOCK) || (dev->rpos < dev->rlen)))) { | |
992 | if (filp->f_flags & O_NONBLOCK) | |
993 | return -EAGAIN; | |
994 | return -ERESTARTSYS; | |
995 | } | |
996 | ||
997 | /* lock io */ | |
998 | if (wait_event_interruptible | |
999 | (dev->ioq, | |
1000 | ((filp->f_flags & O_NONBLOCK) | |
1001 | || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) { | |
1002 | if (filp->f_flags & O_NONBLOCK) | |
1003 | return -EAGAIN; | |
1004 | return -ERESTARTSYS; | |
1005 | } | |
1006 | ||
1007 | rc = 0; | |
1008 | dev->flags0 = inb(REG_FLAGS0(iobase)); | |
1009 | if ((dev->flags0 & 1) == 0 /* no smartcard inserted */ | |
1010 | || dev->flags0 == 0xff) { /* no cardman inserted */ | |
1011 | clear_bit(IS_ATR_VALID, &dev->flags); | |
1012 | if (dev->flags0 & 1) { | |
1013 | set_bit(IS_CMM_ABSENT, &dev->flags); | |
1014 | rc = -ENODEV; | |
1015 | } | |
1016 | rc = -EIO; | |
1017 | goto release_io; | |
1018 | } | |
1019 | ||
1020 | DEBUGP(4, dev, "begin read answer\n"); | |
1021 | j = min(count, (size_t)(dev->rlen - dev->rpos)); | |
1022 | k = dev->rpos; | |
1023 | if (k + j > 255) | |
1024 | j = 256 - k; | |
1025 | DEBUGP(4, dev, "read1 j=%d\n", j); | |
1026 | for (i = 0; i < j; i++) { | |
1027 | xoutb(k++, REG_BUF_ADDR(iobase)); | |
1028 | dev->rbuf[i] = xinb(REG_BUF_DATA(iobase)); | |
1029 | } | |
1030 | j = min(count, (size_t)(dev->rlen - dev->rpos)); | |
1031 | if (k + j > 255) { | |
1032 | DEBUGP(4, dev, "read2 j=%d\n", j); | |
1033 | dev->flags1 |= 0x10; /* MSB buf addr set */ | |
1034 | xoutb(dev->flags1, REG_FLAGS1(iobase)); | |
1035 | for (; i < j; i++) { | |
1036 | xoutb(k++, REG_BUF_ADDR(iobase)); | |
1037 | dev->rbuf[i] = xinb(REG_BUF_DATA(iobase)); | |
1038 | } | |
1039 | } | |
1040 | ||
1041 | if (dev->proto == 0 && count > dev->rlen - dev->rpos) { | |
1042 | DEBUGP(4, dev, "T=0 and count > buffer\n"); | |
1043 | dev->rbuf[i] = dev->rbuf[i - 1]; | |
1044 | dev->rbuf[i - 1] = dev->procbyte; | |
1045 | j++; | |
1046 | } | |
1047 | count = j; | |
1048 | ||
1049 | dev->rpos = dev->rlen + 1; | |
1050 | ||
1051 | /* Clear T1Active */ | |
1052 | DEBUGP(4, dev, "Clear T1Active\n"); | |
1053 | dev->flags1 &= 0xdf; | |
1054 | xoutb(dev->flags1, REG_FLAGS1(iobase)); | |
1055 | ||
1056 | xoutb(0, REG_FLAGS1(iobase)); /* clear detectCMM */ | |
1057 | /* last check before exit */ | |
1058 | if (!io_detect_cm4000(iobase, dev)) | |
1059 | count = -ENODEV; | |
1060 | ||
1061 | if (test_bit(IS_INVREV, &dev->flags) && count > 0) | |
1062 | str_invert_revert(dev->rbuf, count); | |
1063 | ||
1064 | if (copy_to_user(buf, dev->rbuf, count)) | |
1065 | return -EFAULT; | |
1066 | ||
1067 | release_io: | |
1068 | clear_bit(LOCK_IO, &dev->flags); | |
1069 | wake_up_interruptible(&dev->ioq); | |
1070 | ||
1071 | DEBUGP(2, dev, "<- cmm_read returns: rc = %Zi\n", | |
1072 | (rc < 0 ? rc : count)); | |
1073 | return rc < 0 ? rc : count; | |
1074 | } | |
1075 | ||
1076 | static ssize_t cmm_write(struct file *filp, const char __user *buf, | |
1077 | size_t count, loff_t *ppos) | |
1078 | { | |
1079 | struct cm4000_dev *dev = (struct cm4000_dev *) filp->private_data; | |
fd238232 | 1080 | ioaddr_t iobase = dev->p_dev->io.BasePort1; |
c1986ee9 HW |
1081 | unsigned short s; |
1082 | unsigned char tmp; | |
1083 | unsigned char infolen; | |
1084 | unsigned char sendT0; | |
1085 | unsigned short nsend; | |
1086 | unsigned short nr; | |
1087 | ssize_t rc; | |
1088 | int i; | |
1089 | ||
1090 | DEBUGP(2, dev, "-> cmm_write(%s,%d)\n", current->comm, current->pid); | |
1091 | ||
1092 | if (count == 0) /* according to manpage */ | |
1093 | return 0; | |
1094 | ||
1095 | if (dev->proto == 0 && count < 4) { | |
1096 | /* T0 must have at least 4 bytes */ | |
1097 | DEBUGP(4, dev, "T0 short write\n"); | |
1098 | return -EIO; | |
1099 | } | |
1100 | ||
1101 | nr = count & 0x1ff; /* max bytes to write */ | |
1102 | ||
1103 | sendT0 = dev->proto ? 0 : nr > 5 ? 0x08 : 0; | |
1104 | ||
e2d40963 | 1105 | if (!pcmcia_dev_present(dev->p_dev) || /* device removed */ |
c1986ee9 HW |
1106 | test_bit(IS_CMM_ABSENT, &dev->flags)) |
1107 | return -ENODEV; | |
1108 | ||
1109 | if (test_bit(IS_BAD_CSUM, &dev->flags)) { | |
1110 | DEBUGP(4, dev, "bad csum\n"); | |
1111 | return -EIO; | |
1112 | } | |
1113 | ||
1114 | /* | |
1115 | * wait for atr to become valid. | |
1116 | * note: it is important to lock this code. if we dont, the monitor | |
59c51591 | 1117 | * could be run between test_bit and the call to sleep on the |
c1986ee9 HW |
1118 | * atr-queue. if *then* the monitor detects atr valid, it will wake up |
1119 | * any process on the atr-queue, *but* since we have been interrupted, | |
1120 | * we do not yet sleep on this queue. this would result in a missed | |
1121 | * wake_up and the calling process would sleep forever (until | |
1122 | * interrupted). also, do *not* restore_flags before sleep_on, because | |
1123 | * this could result in the same situation! | |
1124 | */ | |
1125 | if (wait_event_interruptible | |
1126 | (dev->atrq, | |
1127 | ((filp->f_flags & O_NONBLOCK) | |
1128 | || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) { | |
1129 | if (filp->f_flags & O_NONBLOCK) | |
1130 | return -EAGAIN; | |
1131 | return -ERESTARTSYS; | |
1132 | } | |
1133 | ||
1134 | if (test_bit(IS_ATR_VALID, &dev->flags) == 0) { /* invalid atr */ | |
1135 | DEBUGP(4, dev, "invalid ATR\n"); | |
1136 | return -EIO; | |
1137 | } | |
1138 | ||
1139 | /* lock io */ | |
1140 | if (wait_event_interruptible | |
1141 | (dev->ioq, | |
1142 | ((filp->f_flags & O_NONBLOCK) | |
1143 | || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) { | |
1144 | if (filp->f_flags & O_NONBLOCK) | |
1145 | return -EAGAIN; | |
1146 | return -ERESTARTSYS; | |
1147 | } | |
1148 | ||
1149 | if (copy_from_user(dev->sbuf, buf, ((count > 512) ? 512 : count))) | |
1150 | return -EFAULT; | |
1151 | ||
1152 | rc = 0; | |
1153 | dev->flags0 = inb(REG_FLAGS0(iobase)); | |
1154 | if ((dev->flags0 & 1) == 0 /* no smartcard inserted */ | |
1155 | || dev->flags0 == 0xff) { /* no cardman inserted */ | |
1156 | clear_bit(IS_ATR_VALID, &dev->flags); | |
1157 | if (dev->flags0 & 1) { | |
1158 | set_bit(IS_CMM_ABSENT, &dev->flags); | |
1159 | rc = -ENODEV; | |
1160 | } else { | |
1161 | DEBUGP(4, dev, "IO error\n"); | |
1162 | rc = -EIO; | |
1163 | } | |
1164 | goto release_io; | |
1165 | } | |
1166 | ||
1167 | xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */ | |
1168 | ||
1169 | if (!io_detect_cm4000(iobase, dev)) { | |
1170 | rc = -ENODEV; | |
1171 | goto release_io; | |
1172 | } | |
1173 | ||
1174 | /* reflect T=0 send/read mode in flags1 */ | |
1175 | dev->flags1 |= (sendT0); | |
1176 | ||
1177 | set_cardparameter(dev); | |
1178 | ||
1179 | /* dummy read, reset flag procedure received */ | |
1180 | tmp = inb(REG_FLAGS1(iobase)); | |
1181 | ||
1182 | dev->flags1 = 0x20 /* T_Active */ | |
1183 | | (sendT0) | |
1184 | | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0)/* inverse parity */ | |
1185 | | (((dev->baudv - 1) & 0x0100) >> 8); /* MSB-Baud */ | |
1186 | DEBUGP(1, dev, "set dev->flags1 = 0x%.2x\n", dev->flags1); | |
1187 | xoutb(dev->flags1, REG_FLAGS1(iobase)); | |
1188 | ||
1189 | /* xmit data */ | |
1190 | DEBUGP(4, dev, "Xmit data\n"); | |
1191 | for (i = 0; i < nr; i++) { | |
1192 | if (i >= 256) { | |
1193 | dev->flags1 = 0x20 /* T_Active */ | |
1194 | | (sendT0) /* SendT0 */ | |
1195 | /* inverse parity: */ | |
1196 | | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0) | |
1197 | | (((dev->baudv - 1) & 0x0100) >> 8) /* MSB-Baud */ | |
1198 | | 0x10; /* set address high */ | |
1199 | DEBUGP(4, dev, "dev->flags = 0x%.2x - set address " | |
1200 | "high\n", dev->flags1); | |
1201 | xoutb(dev->flags1, REG_FLAGS1(iobase)); | |
1202 | } | |
1203 | if (test_bit(IS_INVREV, &dev->flags)) { | |
1204 | DEBUGP(4, dev, "Apply inverse convention for 0x%.2x " | |
1205 | "-> 0x%.2x\n", (unsigned char)dev->sbuf[i], | |
1206 | invert_revert(dev->sbuf[i])); | |
1207 | xoutb(i, REG_BUF_ADDR(iobase)); | |
1208 | xoutb(invert_revert(dev->sbuf[i]), | |
1209 | REG_BUF_DATA(iobase)); | |
1210 | } else { | |
1211 | xoutb(i, REG_BUF_ADDR(iobase)); | |
1212 | xoutb(dev->sbuf[i], REG_BUF_DATA(iobase)); | |
1213 | } | |
1214 | } | |
1215 | DEBUGP(4, dev, "Xmit done\n"); | |
1216 | ||
1217 | if (dev->proto == 0) { | |
1218 | /* T=0 proto: 0 byte reply */ | |
1219 | if (nr == 4) { | |
1220 | DEBUGP(4, dev, "T=0 assumes 0 byte reply\n"); | |
1221 | xoutb(i, REG_BUF_ADDR(iobase)); | |
1222 | if (test_bit(IS_INVREV, &dev->flags)) | |
1223 | xoutb(0xff, REG_BUF_DATA(iobase)); | |
1224 | else | |
1225 | xoutb(0x00, REG_BUF_DATA(iobase)); | |
1226 | } | |
1227 | ||
1228 | /* numSendBytes */ | |
1229 | if (sendT0) | |
1230 | nsend = nr; | |
1231 | else { | |
1232 | if (nr == 4) | |
1233 | nsend = 5; | |
1234 | else { | |
1235 | nsend = 5 + (unsigned char)dev->sbuf[4]; | |
1236 | if (dev->sbuf[4] == 0) | |
1237 | nsend += 0x100; | |
1238 | } | |
1239 | } | |
1240 | } else | |
1241 | nsend = nr; | |
1242 | ||
1243 | /* T0: output procedure byte */ | |
1244 | if (test_bit(IS_INVREV, &dev->flags)) { | |
1245 | DEBUGP(4, dev, "T=0 set Procedure byte (inverse-reverse) " | |
1246 | "0x%.2x\n", invert_revert(dev->sbuf[1])); | |
1247 | xoutb(invert_revert(dev->sbuf[1]), REG_NUM_BYTES(iobase)); | |
1248 | } else { | |
1249 | DEBUGP(4, dev, "T=0 set Procedure byte 0x%.2x\n", dev->sbuf[1]); | |
1250 | xoutb(dev->sbuf[1], REG_NUM_BYTES(iobase)); | |
1251 | } | |
1252 | ||
1253 | DEBUGP(1, dev, "set NumSendBytes = 0x%.2x\n", | |
1254 | (unsigned char)(nsend & 0xff)); | |
1255 | xoutb((unsigned char)(nsend & 0xff), REG_NUM_SEND(iobase)); | |
1256 | ||
1257 | DEBUGP(1, dev, "Trigger CARDMAN CONTROLLER (0x%.2x)\n", | |
1258 | 0x40 /* SM_Active */ | |
1259 | | (dev->flags0 & 2 ? 0 : 4) /* power on if needed */ | |
1260 | |(dev->proto ? 0x10 : 0x08) /* T=1/T=0 */ | |
1261 | |(nsend & 0x100) >> 8 /* MSB numSendBytes */ ); | |
1262 | xoutb(0x40 /* SM_Active */ | |
1263 | | (dev->flags0 & 2 ? 0 : 4) /* power on if needed */ | |
1264 | |(dev->proto ? 0x10 : 0x08) /* T=1/T=0 */ | |
1265 | |(nsend & 0x100) >> 8, /* MSB numSendBytes */ | |
1266 | REG_FLAGS0(iobase)); | |
1267 | ||
1268 | /* wait for xmit done */ | |
1269 | if (dev->proto == 1) { | |
1270 | DEBUGP(4, dev, "Wait for xmit done\n"); | |
1271 | for (i = 0; i < 1000; i++) { | |
1272 | if (inb(REG_FLAGS0(iobase)) & 0x08) | |
1273 | break; | |
1274 | msleep_interruptible(10); | |
1275 | } | |
1276 | if (i == 1000) { | |
1277 | DEBUGP(4, dev, "timeout waiting for xmit done\n"); | |
1278 | rc = -EIO; | |
1279 | goto release_io; | |
1280 | } | |
1281 | } | |
1282 | ||
1283 | /* T=1: wait for infoLen */ | |
1284 | ||
1285 | infolen = 0; | |
1286 | if (dev->proto) { | |
1287 | /* wait until infoLen is valid */ | |
1288 | for (i = 0; i < 6000; i++) { /* max waiting time of 1 min */ | |
1289 | io_read_num_rec_bytes(iobase, &s); | |
1290 | if (s >= 3) { | |
1291 | infolen = inb(REG_FLAGS1(iobase)); | |
1292 | DEBUGP(4, dev, "infolen=%d\n", infolen); | |
1293 | break; | |
1294 | } | |
1295 | msleep_interruptible(10); | |
1296 | } | |
1297 | if (i == 6000) { | |
1298 | DEBUGP(4, dev, "timeout waiting for infoLen\n"); | |
1299 | rc = -EIO; | |
1300 | goto release_io; | |
1301 | } | |
1302 | } else | |
1303 | clear_bit(IS_PROCBYTE_PRESENT, &dev->flags); | |
1304 | ||
1305 | /* numRecBytes | bit9 of numRecytes */ | |
1306 | io_read_num_rec_bytes(iobase, &dev->rlen); | |
1307 | for (i = 0; i < 600; i++) { /* max waiting time of 2 sec */ | |
1308 | if (dev->proto) { | |
1309 | if (dev->rlen >= infolen + 4) | |
1310 | break; | |
1311 | } | |
1312 | msleep_interruptible(10); | |
1313 | /* numRecBytes | bit9 of numRecytes */ | |
1314 | io_read_num_rec_bytes(iobase, &s); | |
1315 | if (s > dev->rlen) { | |
1316 | DEBUGP(1, dev, "NumRecBytes inc (reset timeout)\n"); | |
1317 | i = 0; /* reset timeout */ | |
1318 | dev->rlen = s; | |
1319 | } | |
1320 | /* T=0: we are done when numRecBytes doesn't | |
1321 | * increment any more and NoProcedureByte | |
1322 | * is set and numRecBytes == bytes sent + 6 | |
1323 | * (header bytes + data + 1 for sw2) | |
1324 | * except when the card replies an error | |
1325 | * which means, no data will be sent back. | |
1326 | */ | |
1327 | else if (dev->proto == 0) { | |
1328 | if ((inb(REG_BUF_ADDR(iobase)) & 0x80)) { | |
1329 | /* no procedure byte received since last read */ | |
1330 | DEBUGP(1, dev, "NoProcedure byte set\n"); | |
1331 | /* i=0; */ | |
1332 | } else { | |
1333 | /* procedure byte received since last read */ | |
1334 | DEBUGP(1, dev, "NoProcedure byte unset " | |
1335 | "(reset timeout)\n"); | |
1336 | dev->procbyte = inb(REG_FLAGS1(iobase)); | |
1337 | DEBUGP(1, dev, "Read procedure byte 0x%.2x\n", | |
1338 | dev->procbyte); | |
1339 | i = 0; /* resettimeout */ | |
1340 | } | |
1341 | if (inb(REG_FLAGS0(iobase)) & 0x08) { | |
1342 | DEBUGP(1, dev, "T0Done flag (read reply)\n"); | |
1343 | break; | |
1344 | } | |
1345 | } | |
1346 | if (dev->proto) | |
1347 | infolen = inb(REG_FLAGS1(iobase)); | |
1348 | } | |
1349 | if (i == 600) { | |
1350 | DEBUGP(1, dev, "timeout waiting for numRecBytes\n"); | |
1351 | rc = -EIO; | |
1352 | goto release_io; | |
1353 | } else { | |
1354 | if (dev->proto == 0) { | |
1355 | DEBUGP(1, dev, "Wait for T0Done bit to be set\n"); | |
1356 | for (i = 0; i < 1000; i++) { | |
1357 | if (inb(REG_FLAGS0(iobase)) & 0x08) | |
1358 | break; | |
1359 | msleep_interruptible(10); | |
1360 | } | |
1361 | if (i == 1000) { | |
1362 | DEBUGP(1, dev, "timeout waiting for T0Done\n"); | |
1363 | rc = -EIO; | |
1364 | goto release_io; | |
1365 | } | |
1366 | ||
1367 | dev->procbyte = inb(REG_FLAGS1(iobase)); | |
1368 | DEBUGP(4, dev, "Read procedure byte 0x%.2x\n", | |
1369 | dev->procbyte); | |
1370 | ||
1371 | io_read_num_rec_bytes(iobase, &dev->rlen); | |
1372 | DEBUGP(4, dev, "Read NumRecBytes = %i\n", dev->rlen); | |
1373 | ||
1374 | } | |
1375 | } | |
1376 | /* T=1: read offset=zero, T=0: read offset=after challenge */ | |
1377 | dev->rpos = dev->proto ? 0 : nr == 4 ? 5 : nr > dev->rlen ? 5 : nr; | |
1378 | DEBUGP(4, dev, "dev->rlen = %i, dev->rpos = %i, nr = %i\n", | |
1379 | dev->rlen, dev->rpos, nr); | |
1380 | ||
1381 | release_io: | |
1382 | DEBUGP(4, dev, "Reset SM\n"); | |
1383 | xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */ | |
1384 | ||
1385 | if (rc < 0) { | |
1386 | DEBUGP(4, dev, "Write failed but clear T_Active\n"); | |
1387 | dev->flags1 &= 0xdf; | |
1388 | xoutb(dev->flags1, REG_FLAGS1(iobase)); | |
1389 | } | |
1390 | ||
1391 | clear_bit(LOCK_IO, &dev->flags); | |
1392 | wake_up_interruptible(&dev->ioq); | |
1393 | wake_up_interruptible(&dev->readq); /* tell read we have data */ | |
1394 | ||
1395 | /* ITSEC E2: clear write buffer */ | |
1396 | memset((char *)dev->sbuf, 0, 512); | |
1397 | ||
1398 | /* return error or actually written bytes */ | |
1399 | DEBUGP(2, dev, "<- cmm_write\n"); | |
1400 | return rc < 0 ? rc : nr; | |
1401 | } | |
1402 | ||
1403 | static void start_monitor(struct cm4000_dev *dev) | |
1404 | { | |
1405 | DEBUGP(3, dev, "-> start_monitor\n"); | |
1406 | if (!dev->monitor_running) { | |
1407 | DEBUGP(5, dev, "create, init and add timer\n"); | |
40565f19 | 1408 | setup_timer(&dev->timer, monitor_card, (unsigned long)dev); |
c1986ee9 | 1409 | dev->monitor_running = 1; |
40565f19 | 1410 | mod_timer(&dev->timer, jiffies); |
c1986ee9 HW |
1411 | } else |
1412 | DEBUGP(5, dev, "monitor already running\n"); | |
1413 | DEBUGP(3, dev, "<- start_monitor\n"); | |
1414 | } | |
1415 | ||
1416 | static void stop_monitor(struct cm4000_dev *dev) | |
1417 | { | |
1418 | DEBUGP(3, dev, "-> stop_monitor\n"); | |
1419 | if (dev->monitor_running) { | |
1420 | DEBUGP(5, dev, "stopping monitor\n"); | |
1421 | terminate_monitor(dev); | |
1422 | /* reset monitor SM */ | |
1423 | clear_bit(IS_ATR_VALID, &dev->flags); | |
1424 | clear_bit(IS_ATR_PRESENT, &dev->flags); | |
1425 | } else | |
1426 | DEBUGP(5, dev, "monitor already stopped\n"); | |
1427 | DEBUGP(3, dev, "<- stop_monitor\n"); | |
1428 | } | |
1429 | ||
1430 | static int cmm_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, | |
1431 | unsigned long arg) | |
1432 | { | |
1433 | struct cm4000_dev *dev = filp->private_data; | |
fd238232 | 1434 | ioaddr_t iobase = dev->p_dev->io.BasePort1; |
fba395ee | 1435 | struct pcmcia_device *link; |
c1986ee9 HW |
1436 | int size; |
1437 | int rc; | |
c4aa02eb | 1438 | void __user *argp = (void __user *)arg; |
c1986ee9 HW |
1439 | #ifdef PCMCIA_DEBUG |
1440 | char *ioctl_names[CM_IOC_MAXNR + 1] = { | |
1441 | [_IOC_NR(CM_IOCGSTATUS)] "CM_IOCGSTATUS", | |
1442 | [_IOC_NR(CM_IOCGATR)] "CM_IOCGATR", | |
1443 | [_IOC_NR(CM_IOCARDOFF)] "CM_IOCARDOFF", | |
1444 | [_IOC_NR(CM_IOCSPTS)] "CM_IOCSPTS", | |
1445 | [_IOC_NR(CM_IOSDBGLVL)] "CM4000_DBGLVL", | |
1446 | }; | |
1447 | #endif | |
1448 | DEBUGP(3, dev, "cmm_ioctl(device=%d.%d) %s\n", imajor(inode), | |
1449 | iminor(inode), ioctl_names[_IOC_NR(cmd)]); | |
1450 | ||
1451 | link = dev_table[iminor(inode)]; | |
9940ec36 | 1452 | if (!pcmcia_dev_present(link)) { |
c1986ee9 HW |
1453 | DEBUGP(4, dev, "DEV_OK false\n"); |
1454 | return -ENODEV; | |
1455 | } | |
1456 | ||
1457 | if (test_bit(IS_CMM_ABSENT, &dev->flags)) { | |
1458 | DEBUGP(4, dev, "CMM_ABSENT flag set\n"); | |
1459 | return -ENODEV; | |
1460 | } | |
1461 | ||
1462 | if (_IOC_TYPE(cmd) != CM_IOC_MAGIC) { | |
1463 | DEBUGP(4, dev, "ioctype mismatch\n"); | |
1464 | return -EINVAL; | |
1465 | } | |
1466 | if (_IOC_NR(cmd) > CM_IOC_MAXNR) { | |
1467 | DEBUGP(4, dev, "iocnr mismatch\n"); | |
1468 | return -EINVAL; | |
1469 | } | |
1470 | size = _IOC_SIZE(cmd); | |
1471 | rc = 0; | |
1472 | DEBUGP(4, dev, "iocdir=%.4x iocr=%.4x iocw=%.4x iocsize=%d cmd=%.4x\n", | |
1473 | _IOC_DIR(cmd), _IOC_READ, _IOC_WRITE, size, cmd); | |
1474 | ||
1475 | if (_IOC_DIR(cmd) & _IOC_READ) { | |
c4aa02eb | 1476 | if (!access_ok(VERIFY_WRITE, argp, size)) |
c1986ee9 HW |
1477 | return -EFAULT; |
1478 | } | |
1479 | if (_IOC_DIR(cmd) & _IOC_WRITE) { | |
c4aa02eb | 1480 | if (!access_ok(VERIFY_READ, argp, size)) |
c1986ee9 HW |
1481 | return -EFAULT; |
1482 | } | |
1483 | ||
1484 | switch (cmd) { | |
1485 | case CM_IOCGSTATUS: | |
1486 | DEBUGP(4, dev, " ... in CM_IOCGSTATUS\n"); | |
1487 | { | |
1488 | int status; | |
1489 | ||
1490 | /* clear other bits, but leave inserted & powered as | |
1491 | * they are */ | |
1492 | status = dev->flags0 & 3; | |
1493 | if (test_bit(IS_ATR_PRESENT, &dev->flags)) | |
1494 | status |= CM_ATR_PRESENT; | |
1495 | if (test_bit(IS_ATR_VALID, &dev->flags)) | |
1496 | status |= CM_ATR_VALID; | |
1497 | if (test_bit(IS_CMM_ABSENT, &dev->flags)) | |
1498 | status |= CM_NO_READER; | |
1499 | if (test_bit(IS_BAD_CARD, &dev->flags)) | |
1500 | status |= CM_BAD_CARD; | |
c4aa02eb | 1501 | if (copy_to_user(argp, &status, sizeof(int))) |
c1986ee9 HW |
1502 | return -EFAULT; |
1503 | } | |
1504 | return 0; | |
1505 | case CM_IOCGATR: | |
1506 | DEBUGP(4, dev, "... in CM_IOCGATR\n"); | |
1507 | { | |
c4aa02eb | 1508 | struct atreq __user *atreq = argp; |
c1986ee9 HW |
1509 | int tmp; |
1510 | /* allow nonblocking io and being interrupted */ | |
1511 | if (wait_event_interruptible | |
1512 | (dev->atrq, | |
1513 | ((filp->f_flags & O_NONBLOCK) | |
1514 | || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) | |
1515 | != 0)))) { | |
1516 | if (filp->f_flags & O_NONBLOCK) | |
1517 | return -EAGAIN; | |
1518 | return -ERESTARTSYS; | |
1519 | } | |
1520 | ||
1521 | if (test_bit(IS_ATR_VALID, &dev->flags) == 0) { | |
1522 | tmp = -1; | |
1523 | if (copy_to_user(&(atreq->atr_len), &tmp, | |
1524 | sizeof(int))) | |
1525 | return -EFAULT; | |
1526 | } else { | |
1527 | if (copy_to_user(atreq->atr, dev->atr, | |
1528 | dev->atr_len)) | |
1529 | return -EFAULT; | |
1530 | ||
1531 | tmp = dev->atr_len; | |
1532 | if (copy_to_user(&(atreq->atr_len), &tmp, sizeof(int))) | |
1533 | return -EFAULT; | |
1534 | } | |
1535 | return 0; | |
1536 | } | |
1537 | case CM_IOCARDOFF: | |
1538 | ||
1539 | #ifdef PCMCIA_DEBUG | |
1540 | DEBUGP(4, dev, "... in CM_IOCARDOFF\n"); | |
1541 | if (dev->flags0 & 0x01) { | |
1542 | DEBUGP(4, dev, " Card inserted\n"); | |
1543 | } else { | |
1544 | DEBUGP(2, dev, " No card inserted\n"); | |
1545 | } | |
1546 | if (dev->flags0 & 0x02) { | |
1547 | DEBUGP(4, dev, " Card powered\n"); | |
1548 | } else { | |
1549 | DEBUGP(2, dev, " Card not powered\n"); | |
1550 | } | |
1551 | #endif | |
1552 | ||
1553 | /* is a card inserted and powered? */ | |
1554 | if ((dev->flags0 & 0x01) && (dev->flags0 & 0x02)) { | |
1555 | ||
1556 | /* get IO lock */ | |
1557 | if (wait_event_interruptible | |
1558 | (dev->ioq, | |
1559 | ((filp->f_flags & O_NONBLOCK) | |
1560 | || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) | |
1561 | == 0)))) { | |
1562 | if (filp->f_flags & O_NONBLOCK) | |
1563 | return -EAGAIN; | |
1564 | return -ERESTARTSYS; | |
1565 | } | |
1566 | /* Set Flags0 = 0x42 */ | |
1567 | DEBUGP(4, dev, "Set Flags0=0x42 \n"); | |
1568 | xoutb(0x42, REG_FLAGS0(iobase)); | |
1569 | clear_bit(IS_ATR_PRESENT, &dev->flags); | |
1570 | clear_bit(IS_ATR_VALID, &dev->flags); | |
1571 | dev->mstate = M_CARDOFF; | |
1572 | clear_bit(LOCK_IO, &dev->flags); | |
1573 | if (wait_event_interruptible | |
1574 | (dev->atrq, | |
1575 | ((filp->f_flags & O_NONBLOCK) | |
1576 | || (test_bit(IS_ATR_VALID, (void *)&dev->flags) != | |
1577 | 0)))) { | |
1578 | if (filp->f_flags & O_NONBLOCK) | |
1579 | return -EAGAIN; | |
1580 | return -ERESTARTSYS; | |
1581 | } | |
1582 | } | |
1583 | /* release lock */ | |
1584 | clear_bit(LOCK_IO, &dev->flags); | |
1585 | wake_up_interruptible(&dev->ioq); | |
1586 | ||
1587 | return 0; | |
1588 | case CM_IOCSPTS: | |
1589 | { | |
1590 | struct ptsreq krnptsreq; | |
1591 | ||
c4aa02eb | 1592 | if (copy_from_user(&krnptsreq, argp, |
c1986ee9 HW |
1593 | sizeof(struct ptsreq))) |
1594 | return -EFAULT; | |
1595 | ||
1596 | rc = 0; | |
1597 | DEBUGP(4, dev, "... in CM_IOCSPTS\n"); | |
1598 | /* wait for ATR to get valid */ | |
1599 | if (wait_event_interruptible | |
1600 | (dev->atrq, | |
1601 | ((filp->f_flags & O_NONBLOCK) | |
1602 | || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) | |
1603 | != 0)))) { | |
1604 | if (filp->f_flags & O_NONBLOCK) | |
1605 | return -EAGAIN; | |
1606 | return -ERESTARTSYS; | |
1607 | } | |
1608 | /* get IO lock */ | |
1609 | if (wait_event_interruptible | |
1610 | (dev->ioq, | |
1611 | ((filp->f_flags & O_NONBLOCK) | |
1612 | || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) | |
1613 | == 0)))) { | |
1614 | if (filp->f_flags & O_NONBLOCK) | |
1615 | return -EAGAIN; | |
1616 | return -ERESTARTSYS; | |
1617 | } | |
1618 | ||
1619 | if ((rc = set_protocol(dev, &krnptsreq)) != 0) { | |
1620 | /* auto power_on again */ | |
1621 | dev->mstate = M_FETCH_ATR; | |
1622 | clear_bit(IS_ATR_VALID, &dev->flags); | |
1623 | } | |
1624 | /* release lock */ | |
1625 | clear_bit(LOCK_IO, &dev->flags); | |
1626 | wake_up_interruptible(&dev->ioq); | |
1627 | ||
1628 | } | |
1629 | return rc; | |
1630 | #ifdef PCMCIA_DEBUG | |
1631 | case CM_IOSDBGLVL: /* set debug log level */ | |
1632 | { | |
1633 | int old_pc_debug = 0; | |
1634 | ||
1635 | old_pc_debug = pc_debug; | |
c4aa02eb | 1636 | if (copy_from_user(&pc_debug, argp, sizeof(int))) |
c1986ee9 HW |
1637 | return -EFAULT; |
1638 | ||
1639 | if (old_pc_debug != pc_debug) | |
1640 | DEBUGP(0, dev, "Changed debug log level " | |
1641 | "to %i\n", pc_debug); | |
1642 | } | |
1643 | return rc; | |
1644 | #endif | |
1645 | default: | |
1646 | DEBUGP(4, dev, "... in default (unknown IOCTL code)\n"); | |
1647 | return -EINVAL; | |
1648 | } | |
1649 | } | |
1650 | ||
1651 | static int cmm_open(struct inode *inode, struct file *filp) | |
1652 | { | |
1653 | struct cm4000_dev *dev; | |
fba395ee | 1654 | struct pcmcia_device *link; |
c1986ee9 HW |
1655 | int rc, minor = iminor(inode); |
1656 | ||
1657 | if (minor >= CM4000_MAX_DEV) | |
1658 | return -ENODEV; | |
1659 | ||
1660 | link = dev_table[minor]; | |
9940ec36 | 1661 | if (link == NULL || !pcmcia_dev_present(link)) |
c1986ee9 HW |
1662 | return -ENODEV; |
1663 | ||
1664 | if (link->open) | |
1665 | return -EBUSY; | |
1666 | ||
1667 | dev = link->priv; | |
1668 | filp->private_data = dev; | |
1669 | ||
1670 | DEBUGP(2, dev, "-> cmm_open(device=%d.%d process=%s,%d)\n", | |
1671 | imajor(inode), minor, current->comm, current->pid); | |
1672 | ||
1673 | /* init device variables, they may be "polluted" after close | |
1674 | * or, the device may never have been closed (i.e. open failed) | |
1675 | */ | |
1676 | ||
1677 | ZERO_DEV(dev); | |
1678 | ||
1679 | /* opening will always block since the | |
1680 | * monitor will be started by open, which | |
1681 | * means we have to wait for ATR becoming | |
1682 | * vaild = block until valid (or card | |
1683 | * inserted) | |
1684 | */ | |
1685 | if (filp->f_flags & O_NONBLOCK) | |
1686 | return -EAGAIN; | |
1687 | ||
1688 | dev->mdelay = T_50MSEC; | |
1689 | ||
1690 | /* start monitoring the cardstatus */ | |
1691 | start_monitor(dev); | |
1692 | ||
1693 | link->open = 1; /* only one open per device */ | |
1694 | rc = 0; | |
1695 | ||
1696 | DEBUGP(2, dev, "<- cmm_open\n"); | |
1697 | return nonseekable_open(inode, filp); | |
1698 | } | |
1699 | ||
1700 | static int cmm_close(struct inode *inode, struct file *filp) | |
1701 | { | |
1702 | struct cm4000_dev *dev; | |
fba395ee | 1703 | struct pcmcia_device *link; |
c1986ee9 HW |
1704 | int minor = iminor(inode); |
1705 | ||
1706 | if (minor >= CM4000_MAX_DEV) | |
1707 | return -ENODEV; | |
1708 | ||
1709 | link = dev_table[minor]; | |
1710 | if (link == NULL) | |
1711 | return -ENODEV; | |
1712 | ||
1713 | dev = link->priv; | |
1714 | ||
1715 | DEBUGP(2, dev, "-> cmm_close(maj/min=%d.%d)\n", | |
1716 | imajor(inode), minor); | |
1717 | ||
1718 | stop_monitor(dev); | |
1719 | ||
1720 | ZERO_DEV(dev); | |
1721 | ||
1722 | link->open = 0; /* only one open per device */ | |
1723 | wake_up(&dev->devq); /* socket removed? */ | |
1724 | ||
1725 | DEBUGP(2, dev, "cmm_close\n"); | |
1726 | return 0; | |
1727 | } | |
1728 | ||
fba395ee | 1729 | static void cmm_cm4000_release(struct pcmcia_device * link) |
c1986ee9 HW |
1730 | { |
1731 | struct cm4000_dev *dev = link->priv; | |
1732 | ||
1733 | /* dont terminate the monitor, rather rely on | |
1734 | * close doing that for us. | |
1735 | */ | |
1736 | DEBUGP(3, dev, "-> cmm_cm4000_release\n"); | |
1737 | while (link->open) { | |
1738 | printk(KERN_INFO MODULE_NAME ": delaying release until " | |
1739 | "process has terminated\n"); | |
1740 | /* note: don't interrupt us: | |
1741 | * close the applications which own | |
1742 | * the devices _first_ ! | |
1743 | */ | |
1744 | wait_event(dev->devq, (link->open == 0)); | |
1745 | } | |
1746 | /* dev->devq=NULL; this cannot be zeroed earlier */ | |
1747 | DEBUGP(3, dev, "<- cmm_cm4000_release\n"); | |
1748 | return; | |
1749 | } | |
1750 | ||
1751 | /*==== Interface to PCMCIA Layer =======================================*/ | |
1752 | ||
15b99ac1 | 1753 | static int cm4000_config(struct pcmcia_device * link, int devno) |
c1986ee9 | 1754 | { |
c1986ee9 HW |
1755 | struct cm4000_dev *dev; |
1756 | tuple_t tuple; | |
1757 | cisparse_t parse; | |
c1986ee9 HW |
1758 | u_char buf[64]; |
1759 | int fail_fn, fail_rc; | |
1760 | int rc; | |
1761 | ||
1762 | /* read the config-tuples */ | |
c1986ee9 HW |
1763 | tuple.Attributes = 0; |
1764 | tuple.TupleData = buf; | |
1765 | tuple.TupleDataMax = sizeof(buf); | |
1766 | tuple.TupleOffset = 0; | |
1767 | ||
c1986ee9 HW |
1768 | link->io.BasePort2 = 0; |
1769 | link->io.NumPorts2 = 0; | |
1770 | link->io.Attributes2 = 0; | |
1771 | tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; | |
fba395ee DB |
1772 | for (rc = pcmcia_get_first_tuple(link, &tuple); |
1773 | rc == CS_SUCCESS; rc = pcmcia_get_next_tuple(link, &tuple)) { | |
c1986ee9 | 1774 | |
fba395ee | 1775 | rc = pcmcia_get_tuple_data(link, &tuple); |
c1986ee9 HW |
1776 | if (rc != CS_SUCCESS) |
1777 | continue; | |
fba395ee | 1778 | rc = pcmcia_parse_tuple(link, &tuple, &parse); |
c1986ee9 HW |
1779 | if (rc != CS_SUCCESS) |
1780 | continue; | |
1781 | ||
1782 | link->conf.ConfigIndex = parse.cftable_entry.index; | |
1783 | ||
1784 | if (!parse.cftable_entry.io.nwin) | |
1785 | continue; | |
1786 | ||
1787 | /* Get the IOaddr */ | |
1788 | link->io.BasePort1 = parse.cftable_entry.io.win[0].base; | |
1789 | link->io.NumPorts1 = parse.cftable_entry.io.win[0].len; | |
1790 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; | |
1791 | if (!(parse.cftable_entry.io.flags & CISTPL_IO_8BIT)) | |
1792 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_16; | |
1793 | if (!(parse.cftable_entry.io.flags & CISTPL_IO_16BIT)) | |
1794 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; | |
1795 | link->io.IOAddrLines = parse.cftable_entry.io.flags | |
1796 | & CISTPL_IO_LINES_MASK; | |
1797 | ||
fba395ee | 1798 | rc = pcmcia_request_io(link, &link->io); |
c1986ee9 HW |
1799 | if (rc == CS_SUCCESS) |
1800 | break; /* we are done */ | |
1801 | } | |
1802 | if (rc != CS_SUCCESS) | |
1803 | goto cs_release; | |
1804 | ||
1805 | link->conf.IntType = 00000002; | |
1806 | ||
1807 | if ((fail_rc = | |
fba395ee | 1808 | pcmcia_request_configuration(link, &link->conf)) != CS_SUCCESS) { |
c1986ee9 HW |
1809 | fail_fn = RequestConfiguration; |
1810 | goto cs_release; | |
1811 | } | |
1812 | ||
1813 | dev = link->priv; | |
1814 | sprintf(dev->node.dev_name, DEVICE_NAME "%d", devno); | |
1815 | dev->node.major = major; | |
1816 | dev->node.minor = devno; | |
1817 | dev->node.next = NULL; | |
fd238232 | 1818 | link->dev_node = &dev->node; |
c1986ee9 | 1819 | |
15b99ac1 | 1820 | return 0; |
c1986ee9 | 1821 | |
c1986ee9 HW |
1822 | cs_release: |
1823 | cm4000_release(link); | |
15b99ac1 | 1824 | return -ENODEV; |
c1986ee9 HW |
1825 | } |
1826 | ||
fba395ee | 1827 | static int cm4000_suspend(struct pcmcia_device *link) |
98e4c28b | 1828 | { |
98e4c28b DB |
1829 | struct cm4000_dev *dev; |
1830 | ||
1831 | dev = link->priv; | |
98e4c28b DB |
1832 | stop_monitor(dev); |
1833 | ||
1834 | return 0; | |
1835 | } | |
1836 | ||
fba395ee | 1837 | static int cm4000_resume(struct pcmcia_device *link) |
98e4c28b | 1838 | { |
98e4c28b DB |
1839 | struct cm4000_dev *dev; |
1840 | ||
1841 | dev = link->priv; | |
98e4c28b DB |
1842 | if (link->open) |
1843 | start_monitor(dev); | |
1844 | ||
1845 | return 0; | |
1846 | } | |
1847 | ||
fba395ee | 1848 | static void cm4000_release(struct pcmcia_device *link) |
c1986ee9 HW |
1849 | { |
1850 | cmm_cm4000_release(link->priv); /* delay release until device closed */ | |
fba395ee | 1851 | pcmcia_disable_device(link); |
c1986ee9 HW |
1852 | } |
1853 | ||
15b99ac1 | 1854 | static int cm4000_probe(struct pcmcia_device *link) |
c1986ee9 HW |
1855 | { |
1856 | struct cm4000_dev *dev; | |
15b99ac1 | 1857 | int i, ret; |
c1986ee9 HW |
1858 | |
1859 | for (i = 0; i < CM4000_MAX_DEV; i++) | |
1860 | if (dev_table[i] == NULL) | |
1861 | break; | |
1862 | ||
1863 | if (i == CM4000_MAX_DEV) { | |
1864 | printk(KERN_NOTICE MODULE_NAME ": all devices in use\n"); | |
f8cfa618 | 1865 | return -ENODEV; |
c1986ee9 HW |
1866 | } |
1867 | ||
1868 | /* create a new cm4000_cs device */ | |
1869 | dev = kzalloc(sizeof(struct cm4000_dev), GFP_KERNEL); | |
1870 | if (dev == NULL) | |
f8cfa618 | 1871 | return -ENOMEM; |
c1986ee9 | 1872 | |
fba395ee | 1873 | dev->p_dev = link; |
c1986ee9 HW |
1874 | link->priv = dev; |
1875 | link->conf.IntType = INT_MEMORY_AND_IO; | |
1876 | dev_table[i] = link; | |
1877 | ||
c1986ee9 HW |
1878 | init_waitqueue_head(&dev->devq); |
1879 | init_waitqueue_head(&dev->ioq); | |
1880 | init_waitqueue_head(&dev->atrq); | |
1881 | init_waitqueue_head(&dev->readq); | |
1882 | ||
15b99ac1 DB |
1883 | ret = cm4000_config(link, i); |
1884 | if (ret) | |
1885 | return ret; | |
f8cfa618 | 1886 | |
67bc6200 HW |
1887 | class_device_create(cmm_class, NULL, MKDEV(major, i), NULL, |
1888 | "cmm%d", i); | |
1889 | ||
f8cfa618 | 1890 | return 0; |
c1986ee9 HW |
1891 | } |
1892 | ||
fba395ee | 1893 | static void cm4000_detach(struct pcmcia_device *link) |
c1986ee9 HW |
1894 | { |
1895 | struct cm4000_dev *dev = link->priv; | |
cc3b4866 | 1896 | int devno; |
c1986ee9 | 1897 | |
cc3b4866 DB |
1898 | /* find device */ |
1899 | for (devno = 0; devno < CM4000_MAX_DEV; devno++) | |
1900 | if (dev_table[devno] == link) | |
1901 | break; | |
1902 | if (devno == CM4000_MAX_DEV) | |
1903 | return; | |
c1986ee9 | 1904 | |
cc3b4866 | 1905 | stop_monitor(dev); |
c1986ee9 | 1906 | |
e2d40963 | 1907 | cm4000_release(link); |
c1986ee9 HW |
1908 | |
1909 | dev_table[devno] = NULL; | |
cc3b4866 | 1910 | kfree(dev); |
c1986ee9 | 1911 | |
67bc6200 HW |
1912 | class_device_destroy(cmm_class, MKDEV(major, devno)); |
1913 | ||
c1986ee9 HW |
1914 | return; |
1915 | } | |
1916 | ||
62322d25 | 1917 | static const struct file_operations cm4000_fops = { |
c1986ee9 HW |
1918 | .owner = THIS_MODULE, |
1919 | .read = cmm_read, | |
1920 | .write = cmm_write, | |
1921 | .ioctl = cmm_ioctl, | |
1922 | .open = cmm_open, | |
1923 | .release= cmm_close, | |
1924 | }; | |
1925 | ||
1926 | static struct pcmcia_device_id cm4000_ids[] = { | |
1927 | PCMCIA_DEVICE_MANF_CARD(0x0223, 0x0002), | |
1928 | PCMCIA_DEVICE_PROD_ID12("CardMan", "4000", 0x2FB368CA, 0xA2BD8C39), | |
1929 | PCMCIA_DEVICE_NULL, | |
1930 | }; | |
1931 | MODULE_DEVICE_TABLE(pcmcia, cm4000_ids); | |
1932 | ||
1933 | static struct pcmcia_driver cm4000_driver = { | |
1934 | .owner = THIS_MODULE, | |
1935 | .drv = { | |
1936 | .name = "cm4000_cs", | |
1937 | }, | |
15b99ac1 | 1938 | .probe = cm4000_probe, |
cc3b4866 | 1939 | .remove = cm4000_detach, |
98e4c28b DB |
1940 | .suspend = cm4000_suspend, |
1941 | .resume = cm4000_resume, | |
c1986ee9 HW |
1942 | .id_table = cm4000_ids, |
1943 | }; | |
1944 | ||
1945 | static int __init cmm_init(void) | |
1946 | { | |
67bc6200 HW |
1947 | int rc; |
1948 | ||
c1986ee9 | 1949 | printk(KERN_INFO "%s\n", version); |
67bc6200 HW |
1950 | |
1951 | cmm_class = class_create(THIS_MODULE, "cardman_4000"); | |
5eb5fc97 AM |
1952 | if (IS_ERR(cmm_class)) |
1953 | return PTR_ERR(cmm_class); | |
67bc6200 | 1954 | |
c1986ee9 HW |
1955 | major = register_chrdev(0, DEVICE_NAME, &cm4000_fops); |
1956 | if (major < 0) { | |
1957 | printk(KERN_WARNING MODULE_NAME | |
1958 | ": could not get major number\n"); | |
5eb5fc97 | 1959 | return major; |
c1986ee9 HW |
1960 | } |
1961 | ||
7fc5b1e3 HW |
1962 | rc = pcmcia_register_driver(&cm4000_driver); |
1963 | if (rc < 0) { | |
1964 | unregister_chrdev(major, DEVICE_NAME); | |
1965 | return rc; | |
1966 | } | |
1967 | ||
c1986ee9 HW |
1968 | return 0; |
1969 | } | |
1970 | ||
1971 | static void __exit cmm_exit(void) | |
1972 | { | |
c1986ee9 HW |
1973 | printk(KERN_INFO MODULE_NAME ": unloading\n"); |
1974 | pcmcia_unregister_driver(&cm4000_driver); | |
c1986ee9 | 1975 | unregister_chrdev(major, DEVICE_NAME); |
67bc6200 | 1976 | class_destroy(cmm_class); |
c1986ee9 HW |
1977 | }; |
1978 | ||
1979 | module_init(cmm_init); | |
1980 | module_exit(cmm_exit); | |
1981 | MODULE_LICENSE("Dual BSD/GPL"); |