cm4000_cs.c (49037B)
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) 2005-2006 Harald Welte <laforge@gnumonks.org> 17 * - Adhere to Kernel process/coding-style.rst 18 * - Port to 2.6.13 "new" style PCMCIA 19 * - Check for copy_{from,to}_user return values 20 * - Use nonseekable_open() 21 * - add class interface for udev device creation 22 * 23 * All rights reserved. Licensed under dual BSD/GPL license. 24 */ 25 26#include <linux/kernel.h> 27#include <linux/module.h> 28#include <linux/slab.h> 29#include <linux/init.h> 30#include <linux/fs.h> 31#include <linux/delay.h> 32#include <linux/bitrev.h> 33#include <linux/mutex.h> 34#include <linux/uaccess.h> 35#include <linux/io.h> 36 37#include <pcmcia/cistpl.h> 38#include <pcmcia/cisreg.h> 39#include <pcmcia/ciscode.h> 40#include <pcmcia/ds.h> 41 42#include <linux/cm4000_cs.h> 43 44/* #define ATR_CSUM */ 45 46#define reader_to_dev(x) (&x->p_dev->dev) 47 48/* n (debug level) is ignored */ 49/* additional debug output may be enabled by re-compiling with 50 * CM4000_DEBUG set */ 51/* #define CM4000_DEBUG */ 52#define DEBUGP(n, rdr, x, args...) do { \ 53 dev_dbg(reader_to_dev(rdr), "%s:" x, \ 54 __func__ , ## args); \ 55 } while (0) 56 57static DEFINE_MUTEX(cmm_mutex); 58 59#define T_1SEC (HZ) 60#define T_10MSEC msecs_to_jiffies(10) 61#define T_20MSEC msecs_to_jiffies(20) 62#define T_40MSEC msecs_to_jiffies(40) 63#define T_50MSEC msecs_to_jiffies(50) 64#define T_100MSEC msecs_to_jiffies(100) 65#define T_500MSEC msecs_to_jiffies(500) 66 67static void cm4000_release(struct pcmcia_device *link); 68 69static int major; /* major number we get from the kernel */ 70 71/* note: the first state has to have number 0 always */ 72 73#define M_FETCH_ATR 0 74#define M_TIMEOUT_WAIT 1 75#define M_READ_ATR_LEN 2 76#define M_READ_ATR 3 77#define M_ATR_PRESENT 4 78#define M_BAD_CARD 5 79#define M_CARDOFF 6 80 81#define LOCK_IO 0 82#define LOCK_MONITOR 1 83 84#define IS_AUTOPPS_ACT 6 85#define IS_PROCBYTE_PRESENT 7 86#define IS_INVREV 8 87#define IS_ANY_T0 9 88#define IS_ANY_T1 10 89#define IS_ATR_PRESENT 11 90#define IS_ATR_VALID 12 91#define IS_CMM_ABSENT 13 92#define IS_BAD_LENGTH 14 93#define IS_BAD_CSUM 15 94#define IS_BAD_CARD 16 95 96#define REG_FLAGS0(x) (x + 0) 97#define REG_FLAGS1(x) (x + 1) 98#define REG_NUM_BYTES(x) (x + 2) 99#define REG_BUF_ADDR(x) (x + 3) 100#define REG_BUF_DATA(x) (x + 4) 101#define REG_NUM_SEND(x) (x + 5) 102#define REG_BAUDRATE(x) (x + 6) 103#define REG_STOPBITS(x) (x + 7) 104 105struct cm4000_dev { 106 struct pcmcia_device *p_dev; 107 108 unsigned char atr[MAX_ATR]; 109 unsigned char rbuf[512]; 110 unsigned char sbuf[512]; 111 112 wait_queue_head_t devq; /* when removing cardman must not be 113 zeroed! */ 114 115 wait_queue_head_t ioq; /* if IO is locked, wait on this Q */ 116 wait_queue_head_t atrq; /* wait for ATR valid */ 117 wait_queue_head_t readq; /* used by write to wake blk.read */ 118 119 /* warning: do not move this struct group. 120 * initialising to zero depends on it - see ZERO_DEV below. */ 121 struct_group(init, 122 unsigned char atr_csum; 123 unsigned char atr_len_retry; 124 unsigned short atr_len; 125 unsigned short rlen; /* bytes avail. after write */ 126 unsigned short rpos; /* latest read pos. write zeroes */ 127 unsigned char procbyte; /* T=0 procedure byte */ 128 unsigned char mstate; /* state of card monitor */ 129 unsigned char cwarn; /* slow down warning */ 130 unsigned char flags0; /* cardman IO-flags 0 */ 131 unsigned char flags1; /* cardman IO-flags 1 */ 132 unsigned int mdelay; /* variable monitor speeds, in jiffies */ 133 134 unsigned int baudv; /* baud value for speed */ 135 unsigned char ta1; 136 unsigned char proto; /* T=0, T=1, ... */ 137 unsigned long flags; /* lock+flags (MONITOR,IO,ATR) * for concurrent 138 access */ 139 140 unsigned char pts[4]; 141 142 struct timer_list timer; /* used to keep monitor running */ 143 int monitor_running; 144 ); 145}; 146 147#define ZERO_DEV(dev) memset(&((dev)->init), 0, sizeof((dev)->init)) 148 149static struct pcmcia_device *dev_table[CM4000_MAX_DEV]; 150static struct class *cmm_class; 151 152/* This table doesn't use spaces after the comma between fields and thus 153 * violates process/coding-style.rst. However, I don't really think wrapping it around will 154 * make it any clearer to read -HW */ 155static unsigned char fi_di_table[10][14] = { 156/*FI 00 01 02 03 04 05 06 07 08 09 10 11 12 13 */ 157/*DI */ 158/* 0 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11}, 159/* 1 */ {0x01,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x91,0x11,0x11,0x11,0x11}, 160/* 2 */ {0x02,0x12,0x22,0x32,0x11,0x11,0x11,0x11,0x11,0x92,0xA2,0xB2,0x11,0x11}, 161/* 3 */ {0x03,0x13,0x23,0x33,0x43,0x53,0x63,0x11,0x11,0x93,0xA3,0xB3,0xC3,0xD3}, 162/* 4 */ {0x04,0x14,0x24,0x34,0x44,0x54,0x64,0x11,0x11,0x94,0xA4,0xB4,0xC4,0xD4}, 163/* 5 */ {0x00,0x15,0x25,0x35,0x45,0x55,0x65,0x11,0x11,0x95,0xA5,0xB5,0xC5,0xD5}, 164/* 6 */ {0x06,0x16,0x26,0x36,0x46,0x56,0x66,0x11,0x11,0x96,0xA6,0xB6,0xC6,0xD6}, 165/* 7 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11}, 166/* 8 */ {0x08,0x11,0x28,0x38,0x48,0x58,0x68,0x11,0x11,0x98,0xA8,0xB8,0xC8,0xD8}, 167/* 9 */ {0x09,0x19,0x29,0x39,0x49,0x59,0x69,0x11,0x11,0x99,0xA9,0xB9,0xC9,0xD9} 168}; 169 170#ifndef CM4000_DEBUG 171#define xoutb outb 172#define xinb inb 173#else 174static inline void xoutb(unsigned char val, unsigned short port) 175{ 176 pr_debug("outb(val=%.2x,port=%.4x)\n", val, port); 177 outb(val, port); 178} 179static inline unsigned char xinb(unsigned short port) 180{ 181 unsigned char val; 182 183 val = inb(port); 184 pr_debug("%.2x=inb(%.4x)\n", val, port); 185 186 return val; 187} 188#endif 189 190static inline unsigned char invert_revert(unsigned char ch) 191{ 192 return bitrev8(~ch); 193} 194 195static void str_invert_revert(unsigned char *b, int len) 196{ 197 int i; 198 199 for (i = 0; i < len; i++) 200 b[i] = invert_revert(b[i]); 201} 202 203#define ATRLENCK(dev,pos) \ 204 if (pos>=dev->atr_len || pos>=MAX_ATR) \ 205 goto return_0; 206 207static unsigned int calc_baudv(unsigned char fidi) 208{ 209 unsigned int wcrcf, wbrcf, fi_rfu, di_rfu; 210 211 fi_rfu = 372; 212 di_rfu = 1; 213 214 /* FI */ 215 switch ((fidi >> 4) & 0x0F) { 216 case 0x00: 217 wcrcf = 372; 218 break; 219 case 0x01: 220 wcrcf = 372; 221 break; 222 case 0x02: 223 wcrcf = 558; 224 break; 225 case 0x03: 226 wcrcf = 744; 227 break; 228 case 0x04: 229 wcrcf = 1116; 230 break; 231 case 0x05: 232 wcrcf = 1488; 233 break; 234 case 0x06: 235 wcrcf = 1860; 236 break; 237 case 0x07: 238 wcrcf = fi_rfu; 239 break; 240 case 0x08: 241 wcrcf = fi_rfu; 242 break; 243 case 0x09: 244 wcrcf = 512; 245 break; 246 case 0x0A: 247 wcrcf = 768; 248 break; 249 case 0x0B: 250 wcrcf = 1024; 251 break; 252 case 0x0C: 253 wcrcf = 1536; 254 break; 255 case 0x0D: 256 wcrcf = 2048; 257 break; 258 default: 259 wcrcf = fi_rfu; 260 break; 261 } 262 263 /* DI */ 264 switch (fidi & 0x0F) { 265 case 0x00: 266 wbrcf = di_rfu; 267 break; 268 case 0x01: 269 wbrcf = 1; 270 break; 271 case 0x02: 272 wbrcf = 2; 273 break; 274 case 0x03: 275 wbrcf = 4; 276 break; 277 case 0x04: 278 wbrcf = 8; 279 break; 280 case 0x05: 281 wbrcf = 16; 282 break; 283 case 0x06: 284 wbrcf = 32; 285 break; 286 case 0x07: 287 wbrcf = di_rfu; 288 break; 289 case 0x08: 290 wbrcf = 12; 291 break; 292 case 0x09: 293 wbrcf = 20; 294 break; 295 default: 296 wbrcf = di_rfu; 297 break; 298 } 299 300 return (wcrcf / wbrcf); 301} 302 303static unsigned short io_read_num_rec_bytes(unsigned int iobase, 304 unsigned short *s) 305{ 306 unsigned short tmp; 307 308 tmp = *s = 0; 309 do { 310 *s = tmp; 311 tmp = inb(REG_NUM_BYTES(iobase)) | 312 (inb(REG_FLAGS0(iobase)) & 4 ? 0x100 : 0); 313 } while (tmp != *s); 314 315 return *s; 316} 317 318static int parse_atr(struct cm4000_dev *dev) 319{ 320 unsigned char any_t1, any_t0; 321 unsigned char ch, ifno; 322 int ix, done; 323 324 DEBUGP(3, dev, "-> parse_atr: dev->atr_len = %i\n", dev->atr_len); 325 326 if (dev->atr_len < 3) { 327 DEBUGP(5, dev, "parse_atr: atr_len < 3\n"); 328 return 0; 329 } 330 331 if (dev->atr[0] == 0x3f) 332 set_bit(IS_INVREV, &dev->flags); 333 else 334 clear_bit(IS_INVREV, &dev->flags); 335 ix = 1; 336 ifno = 1; 337 ch = dev->atr[1]; 338 dev->proto = 0; /* XXX PROTO */ 339 any_t1 = any_t0 = done = 0; 340 dev->ta1 = 0x11; /* defaults to 9600 baud */ 341 do { 342 if (ifno == 1 && (ch & 0x10)) { 343 /* read first interface byte and TA1 is present */ 344 dev->ta1 = dev->atr[2]; 345 DEBUGP(5, dev, "Card says FiDi is 0x%.2x\n", dev->ta1); 346 ifno++; 347 } else if ((ifno == 2) && (ch & 0x10)) { /* TA(2) */ 348 dev->ta1 = 0x11; 349 ifno++; 350 } 351 352 DEBUGP(5, dev, "Yi=%.2x\n", ch & 0xf0); 353 ix += ((ch & 0x10) >> 4) /* no of int.face chars */ 354 +((ch & 0x20) >> 5) 355 + ((ch & 0x40) >> 6) 356 + ((ch & 0x80) >> 7); 357 /* ATRLENCK(dev,ix); */ 358 if (ch & 0x80) { /* TDi */ 359 ch = dev->atr[ix]; 360 if ((ch & 0x0f)) { 361 any_t1 = 1; 362 DEBUGP(5, dev, "card is capable of T=1\n"); 363 } else { 364 any_t0 = 1; 365 DEBUGP(5, dev, "card is capable of T=0\n"); 366 } 367 } else 368 done = 1; 369 } while (!done); 370 371 DEBUGP(5, dev, "ix=%d noHist=%d any_t1=%d\n", 372 ix, dev->atr[1] & 15, any_t1); 373 if (ix + 1 + (dev->atr[1] & 0x0f) + any_t1 != dev->atr_len) { 374 DEBUGP(5, dev, "length error\n"); 375 return 0; 376 } 377 if (any_t0) 378 set_bit(IS_ANY_T0, &dev->flags); 379 380 if (any_t1) { /* compute csum */ 381 dev->atr_csum = 0; 382#ifdef ATR_CSUM 383 for (i = 1; i < dev->atr_len; i++) 384 dev->atr_csum ^= dev->atr[i]; 385 if (dev->atr_csum) { 386 set_bit(IS_BAD_CSUM, &dev->flags); 387 DEBUGP(5, dev, "bad checksum\n"); 388 goto return_0; 389 } 390#endif 391 if (any_t0 == 0) 392 dev->proto = 1; /* XXX PROTO */ 393 set_bit(IS_ANY_T1, &dev->flags); 394 } 395 396 return 1; 397} 398 399struct card_fixup { 400 char atr[12]; 401 u_int8_t atr_len; 402 u_int8_t stopbits; 403}; 404 405static struct card_fixup card_fixups[] = { 406 { /* ACOS */ 407 .atr = { 0x3b, 0xb3, 0x11, 0x00, 0x00, 0x41, 0x01 }, 408 .atr_len = 7, 409 .stopbits = 0x03, 410 }, 411 { /* Motorola */ 412 .atr = {0x3b, 0x76, 0x13, 0x00, 0x00, 0x80, 0x62, 0x07, 413 0x41, 0x81, 0x81 }, 414 .atr_len = 11, 415 .stopbits = 0x04, 416 }, 417}; 418 419static void set_cardparameter(struct cm4000_dev *dev) 420{ 421 int i; 422 unsigned int iobase = dev->p_dev->resource[0]->start; 423 u_int8_t stopbits = 0x02; /* ISO default */ 424 425 DEBUGP(3, dev, "-> set_cardparameter\n"); 426 427 dev->flags1 = dev->flags1 | (((dev->baudv - 1) & 0x0100) >> 8); 428 xoutb(dev->flags1, REG_FLAGS1(iobase)); 429 DEBUGP(5, dev, "flags1 = 0x%02x\n", dev->flags1); 430 431 /* set baudrate */ 432 xoutb((unsigned char)((dev->baudv - 1) & 0xFF), REG_BAUDRATE(iobase)); 433 434 DEBUGP(5, dev, "baudv = %i -> write 0x%02x\n", dev->baudv, 435 ((dev->baudv - 1) & 0xFF)); 436 437 /* set stopbits */ 438 for (i = 0; i < ARRAY_SIZE(card_fixups); i++) { 439 if (!memcmp(dev->atr, card_fixups[i].atr, 440 card_fixups[i].atr_len)) 441 stopbits = card_fixups[i].stopbits; 442 } 443 xoutb(stopbits, REG_STOPBITS(iobase)); 444 445 DEBUGP(3, dev, "<- set_cardparameter\n"); 446} 447 448static int set_protocol(struct cm4000_dev *dev, struct ptsreq *ptsreq) 449{ 450 451 unsigned long tmp, i; 452 unsigned short num_bytes_read; 453 unsigned char pts_reply[4]; 454 ssize_t rc; 455 unsigned int iobase = dev->p_dev->resource[0]->start; 456 457 rc = 0; 458 459 DEBUGP(3, dev, "-> set_protocol\n"); 460 DEBUGP(5, dev, "ptsreq->Protocol = 0x%.8x, ptsreq->Flags=0x%.8x, " 461 "ptsreq->pts1=0x%.2x, ptsreq->pts2=0x%.2x, " 462 "ptsreq->pts3=0x%.2x\n", (unsigned int)ptsreq->protocol, 463 (unsigned int)ptsreq->flags, ptsreq->pts1, ptsreq->pts2, 464 ptsreq->pts3); 465 466 /* Fill PTS structure */ 467 dev->pts[0] = 0xff; 468 dev->pts[1] = 0x00; 469 tmp = ptsreq->protocol; 470 while ((tmp = (tmp >> 1)) > 0) 471 dev->pts[1]++; 472 dev->proto = dev->pts[1]; /* Set new protocol */ 473 dev->pts[1] = (0x01 << 4) | (dev->pts[1]); 474 475 /* Correct Fi/Di according to CM4000 Fi/Di table */ 476 DEBUGP(5, dev, "Ta(1) from ATR is 0x%.2x\n", dev->ta1); 477 /* set Fi/Di according to ATR TA(1) */ 478 dev->pts[2] = fi_di_table[dev->ta1 & 0x0F][(dev->ta1 >> 4) & 0x0F]; 479 480 /* Calculate PCK character */ 481 dev->pts[3] = dev->pts[0] ^ dev->pts[1] ^ dev->pts[2]; 482 483 DEBUGP(5, dev, "pts0=%.2x, pts1=%.2x, pts2=%.2x, pts3=%.2x\n", 484 dev->pts[0], dev->pts[1], dev->pts[2], dev->pts[3]); 485 486 /* check card convention */ 487 if (test_bit(IS_INVREV, &dev->flags)) 488 str_invert_revert(dev->pts, 4); 489 490 /* reset SM */ 491 xoutb(0x80, REG_FLAGS0(iobase)); 492 493 /* Enable access to the message buffer */ 494 DEBUGP(5, dev, "Enable access to the messages buffer\n"); 495 dev->flags1 = 0x20 /* T_Active */ 496 | (test_bit(IS_INVREV, &dev->flags) ? 0x02 : 0x00) /* inv parity */ 497 | ((dev->baudv >> 8) & 0x01); /* MSB-baud */ 498 xoutb(dev->flags1, REG_FLAGS1(iobase)); 499 500 DEBUGP(5, dev, "Enable message buffer -> flags1 = 0x%.2x\n", 501 dev->flags1); 502 503 /* write challenge to the buffer */ 504 DEBUGP(5, dev, "Write challenge to buffer: "); 505 for (i = 0; i < 4; i++) { 506 xoutb(i, REG_BUF_ADDR(iobase)); 507 xoutb(dev->pts[i], REG_BUF_DATA(iobase)); /* buf data */ 508#ifdef CM4000_DEBUG 509 pr_debug("0x%.2x ", dev->pts[i]); 510 } 511 pr_debug("\n"); 512#else 513 } 514#endif 515 516 /* set number of bytes to write */ 517 DEBUGP(5, dev, "Set number of bytes to write\n"); 518 xoutb(0x04, REG_NUM_SEND(iobase)); 519 520 /* Trigger CARDMAN CONTROLLER */ 521 xoutb(0x50, REG_FLAGS0(iobase)); 522 523 /* Monitor progress */ 524 /* wait for xmit done */ 525 DEBUGP(5, dev, "Waiting for NumRecBytes getting valid\n"); 526 527 for (i = 0; i < 100; i++) { 528 if (inb(REG_FLAGS0(iobase)) & 0x08) { 529 DEBUGP(5, dev, "NumRecBytes is valid\n"); 530 break; 531 } 532 usleep_range(10000, 11000); 533 } 534 if (i == 100) { 535 DEBUGP(5, dev, "Timeout waiting for NumRecBytes getting " 536 "valid\n"); 537 rc = -EIO; 538 goto exit_setprotocol; 539 } 540 541 DEBUGP(5, dev, "Reading NumRecBytes\n"); 542 for (i = 0; i < 100; i++) { 543 io_read_num_rec_bytes(iobase, &num_bytes_read); 544 if (num_bytes_read >= 4) { 545 DEBUGP(2, dev, "NumRecBytes = %i\n", num_bytes_read); 546 if (num_bytes_read > 4) { 547 rc = -EIO; 548 goto exit_setprotocol; 549 } 550 break; 551 } 552 usleep_range(10000, 11000); 553 } 554 555 /* check whether it is a short PTS reply? */ 556 if (num_bytes_read == 3) 557 i = 0; 558 559 if (i == 100) { 560 DEBUGP(5, dev, "Timeout reading num_bytes_read\n"); 561 rc = -EIO; 562 goto exit_setprotocol; 563 } 564 565 DEBUGP(5, dev, "Reset the CARDMAN CONTROLLER\n"); 566 xoutb(0x80, REG_FLAGS0(iobase)); 567 568 /* Read PPS reply */ 569 DEBUGP(5, dev, "Read PPS reply\n"); 570 for (i = 0; i < num_bytes_read; i++) { 571 xoutb(i, REG_BUF_ADDR(iobase)); 572 pts_reply[i] = inb(REG_BUF_DATA(iobase)); 573 } 574 575#ifdef CM4000_DEBUG 576 DEBUGP(2, dev, "PTSreply: "); 577 for (i = 0; i < num_bytes_read; i++) { 578 pr_debug("0x%.2x ", pts_reply[i]); 579 } 580 pr_debug("\n"); 581#endif /* CM4000_DEBUG */ 582 583 DEBUGP(5, dev, "Clear Tactive in Flags1\n"); 584 xoutb(0x20, REG_FLAGS1(iobase)); 585 586 /* Compare ptsreq and ptsreply */ 587 if ((dev->pts[0] == pts_reply[0]) && 588 (dev->pts[1] == pts_reply[1]) && 589 (dev->pts[2] == pts_reply[2]) && (dev->pts[3] == pts_reply[3])) { 590 /* setcardparameter according to PPS */ 591 dev->baudv = calc_baudv(dev->pts[2]); 592 set_cardparameter(dev); 593 } else if ((dev->pts[0] == pts_reply[0]) && 594 ((dev->pts[1] & 0xef) == pts_reply[1]) && 595 ((pts_reply[0] ^ pts_reply[1]) == pts_reply[2])) { 596 /* short PTS reply, set card parameter to default values */ 597 dev->baudv = calc_baudv(0x11); 598 set_cardparameter(dev); 599 } else 600 rc = -EIO; 601 602exit_setprotocol: 603 DEBUGP(3, dev, "<- set_protocol\n"); 604 return rc; 605} 606 607static int io_detect_cm4000(unsigned int iobase, struct cm4000_dev *dev) 608{ 609 610 /* note: statemachine is assumed to be reset */ 611 if (inb(REG_FLAGS0(iobase)) & 8) { 612 clear_bit(IS_ATR_VALID, &dev->flags); 613 set_bit(IS_CMM_ABSENT, &dev->flags); 614 return 0; /* detect CMM = 1 -> failure */ 615 } 616 /* xoutb(0x40, REG_FLAGS1(iobase)); detectCMM */ 617 xoutb(dev->flags1 | 0x40, REG_FLAGS1(iobase)); 618 if ((inb(REG_FLAGS0(iobase)) & 8) == 0) { 619 clear_bit(IS_ATR_VALID, &dev->flags); 620 set_bit(IS_CMM_ABSENT, &dev->flags); 621 return 0; /* detect CMM=0 -> failure */ 622 } 623 /* clear detectCMM again by restoring original flags1 */ 624 xoutb(dev->flags1, REG_FLAGS1(iobase)); 625 return 1; 626} 627 628static void terminate_monitor(struct cm4000_dev *dev) 629{ 630 631 /* tell the monitor to stop and wait until 632 * it terminates. 633 */ 634 DEBUGP(3, dev, "-> terminate_monitor\n"); 635 wait_event_interruptible(dev->devq, 636 test_and_set_bit(LOCK_MONITOR, 637 (void *)&dev->flags)); 638 639 /* now, LOCK_MONITOR has been set. 640 * allow a last cycle in the monitor. 641 * the monitor will indicate that it has 642 * finished by clearing this bit. 643 */ 644 DEBUGP(5, dev, "Now allow last cycle of monitor!\n"); 645 while (test_bit(LOCK_MONITOR, (void *)&dev->flags)) 646 msleep(25); 647 648 DEBUGP(5, dev, "Delete timer\n"); 649 del_timer_sync(&dev->timer); 650#ifdef CM4000_DEBUG 651 dev->monitor_running = 0; 652#endif 653 654 DEBUGP(3, dev, "<- terminate_monitor\n"); 655} 656 657/* 658 * monitor the card every 50msec. as a side-effect, retrieve the 659 * atr once a card is inserted. another side-effect of retrieving the 660 * atr is that the card will be powered on, so there is no need to 661 * power on the card explicitly from the application: the driver 662 * is already doing that for you. 663 */ 664 665static void monitor_card(struct timer_list *t) 666{ 667 struct cm4000_dev *dev = from_timer(dev, t, timer); 668 unsigned int iobase = dev->p_dev->resource[0]->start; 669 unsigned short s; 670 struct ptsreq ptsreq; 671 int i, atrc; 672 673 DEBUGP(7, dev, "-> monitor_card\n"); 674 675 /* if someone has set the lock for us: we're done! */ 676 if (test_and_set_bit(LOCK_MONITOR, &dev->flags)) { 677 DEBUGP(4, dev, "About to stop monitor\n"); 678 /* no */ 679 dev->rlen = 680 dev->rpos = 681 dev->atr_csum = dev->atr_len_retry = dev->cwarn = 0; 682 dev->mstate = M_FETCH_ATR; 683 clear_bit(LOCK_MONITOR, &dev->flags); 684 /* close et al. are sleeping on devq, so wake it */ 685 wake_up_interruptible(&dev->devq); 686 DEBUGP(2, dev, "<- monitor_card (we are done now)\n"); 687 return; 688 } 689 690 /* try to lock io: if it is already locked, just add another timer */ 691 if (test_and_set_bit(LOCK_IO, (void *)&dev->flags)) { 692 DEBUGP(4, dev, "Couldn't get IO lock\n"); 693 goto return_with_timer; 694 } 695 696 /* is a card/a reader inserted at all ? */ 697 dev->flags0 = xinb(REG_FLAGS0(iobase)); 698 DEBUGP(7, dev, "dev->flags0 = 0x%2x\n", dev->flags0); 699 DEBUGP(7, dev, "smartcard present: %s\n", 700 dev->flags0 & 1 ? "yes" : "no"); 701 DEBUGP(7, dev, "cardman present: %s\n", 702 dev->flags0 == 0xff ? "no" : "yes"); 703 704 if ((dev->flags0 & 1) == 0 /* no smartcard inserted */ 705 || dev->flags0 == 0xff) { /* no cardman inserted */ 706 /* no */ 707 dev->rlen = 708 dev->rpos = 709 dev->atr_csum = dev->atr_len_retry = dev->cwarn = 0; 710 dev->mstate = M_FETCH_ATR; 711 712 dev->flags &= 0x000000ff; /* only keep IO and MONITOR locks */ 713 714 if (dev->flags0 == 0xff) { 715 DEBUGP(4, dev, "set IS_CMM_ABSENT bit\n"); 716 set_bit(IS_CMM_ABSENT, &dev->flags); 717 } else if (test_bit(IS_CMM_ABSENT, &dev->flags)) { 718 DEBUGP(4, dev, "clear IS_CMM_ABSENT bit " 719 "(card is removed)\n"); 720 clear_bit(IS_CMM_ABSENT, &dev->flags); 721 } 722 723 goto release_io; 724 } else if ((dev->flags0 & 1) && test_bit(IS_CMM_ABSENT, &dev->flags)) { 725 /* cardman and card present but cardman was absent before 726 * (after suspend with inserted card) */ 727 DEBUGP(4, dev, "clear IS_CMM_ABSENT bit (card is inserted)\n"); 728 clear_bit(IS_CMM_ABSENT, &dev->flags); 729 } 730 731 if (test_bit(IS_ATR_VALID, &dev->flags) == 1) { 732 DEBUGP(7, dev, "believe ATR is already valid (do nothing)\n"); 733 goto release_io; 734 } 735 736 switch (dev->mstate) { 737 case M_CARDOFF: { 738 unsigned char flags0; 739 740 DEBUGP(4, dev, "M_CARDOFF\n"); 741 flags0 = inb(REG_FLAGS0(iobase)); 742 if (flags0 & 0x02) { 743 /* wait until Flags0 indicate power is off */ 744 dev->mdelay = T_10MSEC; 745 } else { 746 /* Flags0 indicate power off and no card inserted now; 747 * Reset CARDMAN CONTROLLER */ 748 xoutb(0x80, REG_FLAGS0(iobase)); 749 750 /* prepare for fetching ATR again: after card off ATR 751 * is read again automatically */ 752 dev->rlen = 753 dev->rpos = 754 dev->atr_csum = 755 dev->atr_len_retry = dev->cwarn = 0; 756 dev->mstate = M_FETCH_ATR; 757 758 /* minimal gap between CARDOFF and read ATR is 50msec */ 759 dev->mdelay = T_50MSEC; 760 } 761 break; 762 } 763 case M_FETCH_ATR: 764 DEBUGP(4, dev, "M_FETCH_ATR\n"); 765 xoutb(0x80, REG_FLAGS0(iobase)); 766 DEBUGP(4, dev, "Reset BAUDV to 9600\n"); 767 dev->baudv = 0x173; /* 9600 */ 768 xoutb(0x02, REG_STOPBITS(iobase)); /* stopbits=2 */ 769 xoutb(0x73, REG_BAUDRATE(iobase)); /* baud value */ 770 xoutb(0x21, REG_FLAGS1(iobase)); /* T_Active=1, baud 771 value */ 772 /* warm start vs. power on: */ 773 xoutb(dev->flags0 & 2 ? 0x46 : 0x44, REG_FLAGS0(iobase)); 774 dev->mdelay = T_40MSEC; 775 dev->mstate = M_TIMEOUT_WAIT; 776 break; 777 case M_TIMEOUT_WAIT: 778 DEBUGP(4, dev, "M_TIMEOUT_WAIT\n"); 779 /* numRecBytes */ 780 io_read_num_rec_bytes(iobase, &dev->atr_len); 781 dev->mdelay = T_10MSEC; 782 dev->mstate = M_READ_ATR_LEN; 783 break; 784 case M_READ_ATR_LEN: 785 DEBUGP(4, dev, "M_READ_ATR_LEN\n"); 786 /* infinite loop possible, since there is no timeout */ 787 788#define MAX_ATR_LEN_RETRY 100 789 790 if (dev->atr_len == io_read_num_rec_bytes(iobase, &s)) { 791 if (dev->atr_len_retry++ >= MAX_ATR_LEN_RETRY) { /* + XX msec */ 792 dev->mdelay = T_10MSEC; 793 dev->mstate = M_READ_ATR; 794 } 795 } else { 796 dev->atr_len = s; 797 dev->atr_len_retry = 0; /* set new timeout */ 798 } 799 800 DEBUGP(4, dev, "Current ATR_LEN = %i\n", dev->atr_len); 801 break; 802 case M_READ_ATR: 803 DEBUGP(4, dev, "M_READ_ATR\n"); 804 xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */ 805 for (i = 0; i < dev->atr_len; i++) { 806 xoutb(i, REG_BUF_ADDR(iobase)); 807 dev->atr[i] = inb(REG_BUF_DATA(iobase)); 808 } 809 /* Deactivate T_Active flags */ 810 DEBUGP(4, dev, "Deactivate T_Active flags\n"); 811 dev->flags1 = 0x01; 812 xoutb(dev->flags1, REG_FLAGS1(iobase)); 813 814 /* atr is present (which doesn't mean it's valid) */ 815 set_bit(IS_ATR_PRESENT, &dev->flags); 816 if (dev->atr[0] == 0x03) 817 str_invert_revert(dev->atr, dev->atr_len); 818 atrc = parse_atr(dev); 819 if (atrc == 0) { /* atr invalid */ 820 dev->mdelay = 0; 821 dev->mstate = M_BAD_CARD; 822 } else { 823 dev->mdelay = T_50MSEC; 824 dev->mstate = M_ATR_PRESENT; 825 set_bit(IS_ATR_VALID, &dev->flags); 826 } 827 828 if (test_bit(IS_ATR_VALID, &dev->flags) == 1) { 829 DEBUGP(4, dev, "monitor_card: ATR valid\n"); 830 /* if ta1 == 0x11, no PPS necessary (default values) */ 831 /* do not do PPS with multi protocol cards */ 832 if ((test_bit(IS_AUTOPPS_ACT, &dev->flags) == 0) && 833 (dev->ta1 != 0x11) && 834 !(test_bit(IS_ANY_T0, &dev->flags) && 835 test_bit(IS_ANY_T1, &dev->flags))) { 836 DEBUGP(4, dev, "Perform AUTOPPS\n"); 837 set_bit(IS_AUTOPPS_ACT, &dev->flags); 838 ptsreq.protocol = (0x01 << dev->proto); 839 ptsreq.flags = 0x01; 840 ptsreq.pts1 = 0x00; 841 ptsreq.pts2 = 0x00; 842 ptsreq.pts3 = 0x00; 843 if (set_protocol(dev, &ptsreq) == 0) { 844 DEBUGP(4, dev, "AUTOPPS ret SUCC\n"); 845 clear_bit(IS_AUTOPPS_ACT, &dev->flags); 846 wake_up_interruptible(&dev->atrq); 847 } else { 848 DEBUGP(4, dev, "AUTOPPS failed: " 849 "repower using defaults\n"); 850 /* prepare for repowering */ 851 clear_bit(IS_ATR_PRESENT, &dev->flags); 852 clear_bit(IS_ATR_VALID, &dev->flags); 853 dev->rlen = 854 dev->rpos = 855 dev->atr_csum = 856 dev->atr_len_retry = dev->cwarn = 0; 857 dev->mstate = M_FETCH_ATR; 858 859 dev->mdelay = T_50MSEC; 860 } 861 } else { 862 /* for cards which use slightly different 863 * params (extra guard time) */ 864 set_cardparameter(dev); 865 if (test_bit(IS_AUTOPPS_ACT, &dev->flags) == 1) 866 DEBUGP(4, dev, "AUTOPPS already active " 867 "2nd try:use default values\n"); 868 if (dev->ta1 == 0x11) 869 DEBUGP(4, dev, "No AUTOPPS necessary " 870 "TA(1)==0x11\n"); 871 if (test_bit(IS_ANY_T0, &dev->flags) 872 && test_bit(IS_ANY_T1, &dev->flags)) 873 DEBUGP(4, dev, "Do NOT perform AUTOPPS " 874 "with multiprotocol cards\n"); 875 clear_bit(IS_AUTOPPS_ACT, &dev->flags); 876 wake_up_interruptible(&dev->atrq); 877 } 878 } else { 879 DEBUGP(4, dev, "ATR invalid\n"); 880 wake_up_interruptible(&dev->atrq); 881 } 882 break; 883 case M_BAD_CARD: 884 DEBUGP(4, dev, "M_BAD_CARD\n"); 885 /* slow down warning, but prompt immediately after insertion */ 886 if (dev->cwarn == 0 || dev->cwarn == 10) { 887 set_bit(IS_BAD_CARD, &dev->flags); 888 dev_warn(&dev->p_dev->dev, MODULE_NAME ": "); 889 if (test_bit(IS_BAD_CSUM, &dev->flags)) { 890 DEBUGP(4, dev, "ATR checksum (0x%.2x, should " 891 "be zero) failed\n", dev->atr_csum); 892 } 893#ifdef CM4000_DEBUG 894 else if (test_bit(IS_BAD_LENGTH, &dev->flags)) { 895 DEBUGP(4, dev, "ATR length error\n"); 896 } else { 897 DEBUGP(4, dev, "card damaged or wrong way " 898 "inserted\n"); 899 } 900#endif 901 dev->cwarn = 0; 902 wake_up_interruptible(&dev->atrq); /* wake open */ 903 } 904 dev->cwarn++; 905 dev->mdelay = T_100MSEC; 906 dev->mstate = M_FETCH_ATR; 907 break; 908 default: 909 DEBUGP(7, dev, "Unknown action\n"); 910 break; /* nothing */ 911 } 912 913release_io: 914 DEBUGP(7, dev, "release_io\n"); 915 clear_bit(LOCK_IO, &dev->flags); 916 wake_up_interruptible(&dev->ioq); /* whoever needs IO */ 917 918return_with_timer: 919 DEBUGP(7, dev, "<- monitor_card (returns with timer)\n"); 920 mod_timer(&dev->timer, jiffies + dev->mdelay); 921 clear_bit(LOCK_MONITOR, &dev->flags); 922} 923 924/* Interface to userland (file_operations) */ 925 926static ssize_t cmm_read(struct file *filp, __user char *buf, size_t count, 927 loff_t *ppos) 928{ 929 struct cm4000_dev *dev = filp->private_data; 930 unsigned int iobase = dev->p_dev->resource[0]->start; 931 ssize_t rc; 932 int i, j, k; 933 934 DEBUGP(2, dev, "-> cmm_read(%s,%d)\n", current->comm, current->pid); 935 936 if (count == 0) /* according to manpage */ 937 return 0; 938 939 if (!pcmcia_dev_present(dev->p_dev) || /* device removed */ 940 test_bit(IS_CMM_ABSENT, &dev->flags)) 941 return -ENODEV; 942 943 if (test_bit(IS_BAD_CSUM, &dev->flags)) 944 return -EIO; 945 946 /* also see the note about this in cmm_write */ 947 if (wait_event_interruptible 948 (dev->atrq, 949 ((filp->f_flags & O_NONBLOCK) 950 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) { 951 if (filp->f_flags & O_NONBLOCK) 952 return -EAGAIN; 953 return -ERESTARTSYS; 954 } 955 956 if (test_bit(IS_ATR_VALID, &dev->flags) == 0) 957 return -EIO; 958 959 /* this one implements blocking IO */ 960 if (wait_event_interruptible 961 (dev->readq, 962 ((filp->f_flags & O_NONBLOCK) || (dev->rpos < dev->rlen)))) { 963 if (filp->f_flags & O_NONBLOCK) 964 return -EAGAIN; 965 return -ERESTARTSYS; 966 } 967 968 /* lock io */ 969 if (wait_event_interruptible 970 (dev->ioq, 971 ((filp->f_flags & O_NONBLOCK) 972 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) { 973 if (filp->f_flags & O_NONBLOCK) 974 return -EAGAIN; 975 return -ERESTARTSYS; 976 } 977 978 rc = 0; 979 dev->flags0 = inb(REG_FLAGS0(iobase)); 980 if ((dev->flags0 & 1) == 0 /* no smartcard inserted */ 981 || dev->flags0 == 0xff) { /* no cardman inserted */ 982 clear_bit(IS_ATR_VALID, &dev->flags); 983 if (dev->flags0 & 1) { 984 set_bit(IS_CMM_ABSENT, &dev->flags); 985 rc = -ENODEV; 986 } else { 987 rc = -EIO; 988 } 989 goto release_io; 990 } 991 992 DEBUGP(4, dev, "begin read answer\n"); 993 j = min(count, (size_t)(dev->rlen - dev->rpos)); 994 k = dev->rpos; 995 if (k + j > 255) 996 j = 256 - k; 997 DEBUGP(4, dev, "read1 j=%d\n", j); 998 for (i = 0; i < j; i++) { 999 xoutb(k++, REG_BUF_ADDR(iobase)); 1000 dev->rbuf[i] = xinb(REG_BUF_DATA(iobase)); 1001 } 1002 j = min(count, (size_t)(dev->rlen - dev->rpos)); 1003 if (k + j > 255) { 1004 DEBUGP(4, dev, "read2 j=%d\n", j); 1005 dev->flags1 |= 0x10; /* MSB buf addr set */ 1006 xoutb(dev->flags1, REG_FLAGS1(iobase)); 1007 for (; i < j; i++) { 1008 xoutb(k++, REG_BUF_ADDR(iobase)); 1009 dev->rbuf[i] = xinb(REG_BUF_DATA(iobase)); 1010 } 1011 } 1012 1013 if (dev->proto == 0 && count > dev->rlen - dev->rpos && i) { 1014 DEBUGP(4, dev, "T=0 and count > buffer\n"); 1015 dev->rbuf[i] = dev->rbuf[i - 1]; 1016 dev->rbuf[i - 1] = dev->procbyte; 1017 j++; 1018 } 1019 count = j; 1020 1021 dev->rpos = dev->rlen + 1; 1022 1023 /* Clear T1Active */ 1024 DEBUGP(4, dev, "Clear T1Active\n"); 1025 dev->flags1 &= 0xdf; 1026 xoutb(dev->flags1, REG_FLAGS1(iobase)); 1027 1028 xoutb(0, REG_FLAGS1(iobase)); /* clear detectCMM */ 1029 /* last check before exit */ 1030 if (!io_detect_cm4000(iobase, dev)) { 1031 rc = -ENODEV; 1032 goto release_io; 1033 } 1034 1035 if (test_bit(IS_INVREV, &dev->flags) && count > 0) 1036 str_invert_revert(dev->rbuf, count); 1037 1038 if (copy_to_user(buf, dev->rbuf, count)) 1039 rc = -EFAULT; 1040 1041release_io: 1042 clear_bit(LOCK_IO, &dev->flags); 1043 wake_up_interruptible(&dev->ioq); 1044 1045 DEBUGP(2, dev, "<- cmm_read returns: rc = %zi\n", 1046 (rc < 0 ? rc : count)); 1047 return rc < 0 ? rc : count; 1048} 1049 1050static ssize_t cmm_write(struct file *filp, const char __user *buf, 1051 size_t count, loff_t *ppos) 1052{ 1053 struct cm4000_dev *dev = filp->private_data; 1054 unsigned int iobase = dev->p_dev->resource[0]->start; 1055 unsigned short s; 1056 unsigned char infolen; 1057 unsigned char sendT0; 1058 unsigned short nsend; 1059 unsigned short nr; 1060 ssize_t rc; 1061 int i; 1062 1063 DEBUGP(2, dev, "-> cmm_write(%s,%d)\n", current->comm, current->pid); 1064 1065 if (count == 0) /* according to manpage */ 1066 return 0; 1067 1068 if (dev->proto == 0 && count < 4) { 1069 /* T0 must have at least 4 bytes */ 1070 DEBUGP(4, dev, "T0 short write\n"); 1071 return -EIO; 1072 } 1073 1074 nr = count & 0x1ff; /* max bytes to write */ 1075 1076 sendT0 = dev->proto ? 0 : nr > 5 ? 0x08 : 0; 1077 1078 if (!pcmcia_dev_present(dev->p_dev) || /* device removed */ 1079 test_bit(IS_CMM_ABSENT, &dev->flags)) 1080 return -ENODEV; 1081 1082 if (test_bit(IS_BAD_CSUM, &dev->flags)) { 1083 DEBUGP(4, dev, "bad csum\n"); 1084 return -EIO; 1085 } 1086 1087 /* 1088 * wait for atr to become valid. 1089 * note: it is important to lock this code. if we dont, the monitor 1090 * could be run between test_bit and the call to sleep on the 1091 * atr-queue. if *then* the monitor detects atr valid, it will wake up 1092 * any process on the atr-queue, *but* since we have been interrupted, 1093 * we do not yet sleep on this queue. this would result in a missed 1094 * wake_up and the calling process would sleep forever (until 1095 * interrupted). also, do *not* restore_flags before sleep_on, because 1096 * this could result in the same situation! 1097 */ 1098 if (wait_event_interruptible 1099 (dev->atrq, 1100 ((filp->f_flags & O_NONBLOCK) 1101 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) { 1102 if (filp->f_flags & O_NONBLOCK) 1103 return -EAGAIN; 1104 return -ERESTARTSYS; 1105 } 1106 1107 if (test_bit(IS_ATR_VALID, &dev->flags) == 0) { /* invalid atr */ 1108 DEBUGP(4, dev, "invalid ATR\n"); 1109 return -EIO; 1110 } 1111 1112 /* lock io */ 1113 if (wait_event_interruptible 1114 (dev->ioq, 1115 ((filp->f_flags & O_NONBLOCK) 1116 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) { 1117 if (filp->f_flags & O_NONBLOCK) 1118 return -EAGAIN; 1119 return -ERESTARTSYS; 1120 } 1121 1122 if (copy_from_user(dev->sbuf, buf, ((count > 512) ? 512 : count))) 1123 return -EFAULT; 1124 1125 rc = 0; 1126 dev->flags0 = inb(REG_FLAGS0(iobase)); 1127 if ((dev->flags0 & 1) == 0 /* no smartcard inserted */ 1128 || dev->flags0 == 0xff) { /* no cardman inserted */ 1129 clear_bit(IS_ATR_VALID, &dev->flags); 1130 if (dev->flags0 & 1) { 1131 set_bit(IS_CMM_ABSENT, &dev->flags); 1132 rc = -ENODEV; 1133 } else { 1134 DEBUGP(4, dev, "IO error\n"); 1135 rc = -EIO; 1136 } 1137 goto release_io; 1138 } 1139 1140 xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */ 1141 1142 if (!io_detect_cm4000(iobase, dev)) { 1143 rc = -ENODEV; 1144 goto release_io; 1145 } 1146 1147 /* reflect T=0 send/read mode in flags1 */ 1148 dev->flags1 |= (sendT0); 1149 1150 set_cardparameter(dev); 1151 1152 /* dummy read, reset flag procedure received */ 1153 inb(REG_FLAGS1(iobase)); 1154 1155 dev->flags1 = 0x20 /* T_Active */ 1156 | (sendT0) 1157 | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0)/* inverse parity */ 1158 | (((dev->baudv - 1) & 0x0100) >> 8); /* MSB-Baud */ 1159 DEBUGP(1, dev, "set dev->flags1 = 0x%.2x\n", dev->flags1); 1160 xoutb(dev->flags1, REG_FLAGS1(iobase)); 1161 1162 /* xmit data */ 1163 DEBUGP(4, dev, "Xmit data\n"); 1164 for (i = 0; i < nr; i++) { 1165 if (i >= 256) { 1166 dev->flags1 = 0x20 /* T_Active */ 1167 | (sendT0) /* SendT0 */ 1168 /* inverse parity: */ 1169 | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0) 1170 | (((dev->baudv - 1) & 0x0100) >> 8) /* MSB-Baud */ 1171 | 0x10; /* set address high */ 1172 DEBUGP(4, dev, "dev->flags = 0x%.2x - set address " 1173 "high\n", dev->flags1); 1174 xoutb(dev->flags1, REG_FLAGS1(iobase)); 1175 } 1176 if (test_bit(IS_INVREV, &dev->flags)) { 1177 DEBUGP(4, dev, "Apply inverse convention for 0x%.2x " 1178 "-> 0x%.2x\n", (unsigned char)dev->sbuf[i], 1179 invert_revert(dev->sbuf[i])); 1180 xoutb(i, REG_BUF_ADDR(iobase)); 1181 xoutb(invert_revert(dev->sbuf[i]), 1182 REG_BUF_DATA(iobase)); 1183 } else { 1184 xoutb(i, REG_BUF_ADDR(iobase)); 1185 xoutb(dev->sbuf[i], REG_BUF_DATA(iobase)); 1186 } 1187 } 1188 DEBUGP(4, dev, "Xmit done\n"); 1189 1190 if (dev->proto == 0) { 1191 /* T=0 proto: 0 byte reply */ 1192 if (nr == 4) { 1193 DEBUGP(4, dev, "T=0 assumes 0 byte reply\n"); 1194 xoutb(i, REG_BUF_ADDR(iobase)); 1195 if (test_bit(IS_INVREV, &dev->flags)) 1196 xoutb(0xff, REG_BUF_DATA(iobase)); 1197 else 1198 xoutb(0x00, REG_BUF_DATA(iobase)); 1199 } 1200 1201 /* numSendBytes */ 1202 if (sendT0) 1203 nsend = nr; 1204 else { 1205 if (nr == 4) 1206 nsend = 5; 1207 else { 1208 nsend = 5 + (unsigned char)dev->sbuf[4]; 1209 if (dev->sbuf[4] == 0) 1210 nsend += 0x100; 1211 } 1212 } 1213 } else 1214 nsend = nr; 1215 1216 /* T0: output procedure byte */ 1217 if (test_bit(IS_INVREV, &dev->flags)) { 1218 DEBUGP(4, dev, "T=0 set Procedure byte (inverse-reverse) " 1219 "0x%.2x\n", invert_revert(dev->sbuf[1])); 1220 xoutb(invert_revert(dev->sbuf[1]), REG_NUM_BYTES(iobase)); 1221 } else { 1222 DEBUGP(4, dev, "T=0 set Procedure byte 0x%.2x\n", dev->sbuf[1]); 1223 xoutb(dev->sbuf[1], REG_NUM_BYTES(iobase)); 1224 } 1225 1226 DEBUGP(1, dev, "set NumSendBytes = 0x%.2x\n", 1227 (unsigned char)(nsend & 0xff)); 1228 xoutb((unsigned char)(nsend & 0xff), REG_NUM_SEND(iobase)); 1229 1230 DEBUGP(1, dev, "Trigger CARDMAN CONTROLLER (0x%.2x)\n", 1231 0x40 /* SM_Active */ 1232 | (dev->flags0 & 2 ? 0 : 4) /* power on if needed */ 1233 |(dev->proto ? 0x10 : 0x08) /* T=1/T=0 */ 1234 |(nsend & 0x100) >> 8 /* MSB numSendBytes */ ); 1235 xoutb(0x40 /* SM_Active */ 1236 | (dev->flags0 & 2 ? 0 : 4) /* power on if needed */ 1237 |(dev->proto ? 0x10 : 0x08) /* T=1/T=0 */ 1238 |(nsend & 0x100) >> 8, /* MSB numSendBytes */ 1239 REG_FLAGS0(iobase)); 1240 1241 /* wait for xmit done */ 1242 if (dev->proto == 1) { 1243 DEBUGP(4, dev, "Wait for xmit done\n"); 1244 for (i = 0; i < 1000; i++) { 1245 if (inb(REG_FLAGS0(iobase)) & 0x08) 1246 break; 1247 msleep_interruptible(10); 1248 } 1249 if (i == 1000) { 1250 DEBUGP(4, dev, "timeout waiting for xmit done\n"); 1251 rc = -EIO; 1252 goto release_io; 1253 } 1254 } 1255 1256 /* T=1: wait for infoLen */ 1257 1258 infolen = 0; 1259 if (dev->proto) { 1260 /* wait until infoLen is valid */ 1261 for (i = 0; i < 6000; i++) { /* max waiting time of 1 min */ 1262 io_read_num_rec_bytes(iobase, &s); 1263 if (s >= 3) { 1264 infolen = inb(REG_FLAGS1(iobase)); 1265 DEBUGP(4, dev, "infolen=%d\n", infolen); 1266 break; 1267 } 1268 msleep_interruptible(10); 1269 } 1270 if (i == 6000) { 1271 DEBUGP(4, dev, "timeout waiting for infoLen\n"); 1272 rc = -EIO; 1273 goto release_io; 1274 } 1275 } else 1276 clear_bit(IS_PROCBYTE_PRESENT, &dev->flags); 1277 1278 /* numRecBytes | bit9 of numRecytes */ 1279 io_read_num_rec_bytes(iobase, &dev->rlen); 1280 for (i = 0; i < 600; i++) { /* max waiting time of 2 sec */ 1281 if (dev->proto) { 1282 if (dev->rlen >= infolen + 4) 1283 break; 1284 } 1285 msleep_interruptible(10); 1286 /* numRecBytes | bit9 of numRecytes */ 1287 io_read_num_rec_bytes(iobase, &s); 1288 if (s > dev->rlen) { 1289 DEBUGP(1, dev, "NumRecBytes inc (reset timeout)\n"); 1290 i = 0; /* reset timeout */ 1291 dev->rlen = s; 1292 } 1293 /* T=0: we are done when numRecBytes doesn't 1294 * increment any more and NoProcedureByte 1295 * is set and numRecBytes == bytes sent + 6 1296 * (header bytes + data + 1 for sw2) 1297 * except when the card replies an error 1298 * which means, no data will be sent back. 1299 */ 1300 else if (dev->proto == 0) { 1301 if ((inb(REG_BUF_ADDR(iobase)) & 0x80)) { 1302 /* no procedure byte received since last read */ 1303 DEBUGP(1, dev, "NoProcedure byte set\n"); 1304 /* i=0; */ 1305 } else { 1306 /* procedure byte received since last read */ 1307 DEBUGP(1, dev, "NoProcedure byte unset " 1308 "(reset timeout)\n"); 1309 dev->procbyte = inb(REG_FLAGS1(iobase)); 1310 DEBUGP(1, dev, "Read procedure byte 0x%.2x\n", 1311 dev->procbyte); 1312 i = 0; /* resettimeout */ 1313 } 1314 if (inb(REG_FLAGS0(iobase)) & 0x08) { 1315 DEBUGP(1, dev, "T0Done flag (read reply)\n"); 1316 break; 1317 } 1318 } 1319 if (dev->proto) 1320 infolen = inb(REG_FLAGS1(iobase)); 1321 } 1322 if (i == 600) { 1323 DEBUGP(1, dev, "timeout waiting for numRecBytes\n"); 1324 rc = -EIO; 1325 goto release_io; 1326 } else { 1327 if (dev->proto == 0) { 1328 DEBUGP(1, dev, "Wait for T0Done bit to be set\n"); 1329 for (i = 0; i < 1000; i++) { 1330 if (inb(REG_FLAGS0(iobase)) & 0x08) 1331 break; 1332 msleep_interruptible(10); 1333 } 1334 if (i == 1000) { 1335 DEBUGP(1, dev, "timeout waiting for T0Done\n"); 1336 rc = -EIO; 1337 goto release_io; 1338 } 1339 1340 dev->procbyte = inb(REG_FLAGS1(iobase)); 1341 DEBUGP(4, dev, "Read procedure byte 0x%.2x\n", 1342 dev->procbyte); 1343 1344 io_read_num_rec_bytes(iobase, &dev->rlen); 1345 DEBUGP(4, dev, "Read NumRecBytes = %i\n", dev->rlen); 1346 1347 } 1348 } 1349 /* T=1: read offset=zero, T=0: read offset=after challenge */ 1350 dev->rpos = dev->proto ? 0 : nr == 4 ? 5 : nr > dev->rlen ? 5 : nr; 1351 DEBUGP(4, dev, "dev->rlen = %i, dev->rpos = %i, nr = %i\n", 1352 dev->rlen, dev->rpos, nr); 1353 1354release_io: 1355 DEBUGP(4, dev, "Reset SM\n"); 1356 xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */ 1357 1358 if (rc < 0) { 1359 DEBUGP(4, dev, "Write failed but clear T_Active\n"); 1360 dev->flags1 &= 0xdf; 1361 xoutb(dev->flags1, REG_FLAGS1(iobase)); 1362 } 1363 1364 clear_bit(LOCK_IO, &dev->flags); 1365 wake_up_interruptible(&dev->ioq); 1366 wake_up_interruptible(&dev->readq); /* tell read we have data */ 1367 1368 /* ITSEC E2: clear write buffer */ 1369 memset((char *)dev->sbuf, 0, 512); 1370 1371 /* return error or actually written bytes */ 1372 DEBUGP(2, dev, "<- cmm_write\n"); 1373 return rc < 0 ? rc : nr; 1374} 1375 1376static void start_monitor(struct cm4000_dev *dev) 1377{ 1378 DEBUGP(3, dev, "-> start_monitor\n"); 1379 if (!dev->monitor_running) { 1380 DEBUGP(5, dev, "create, init and add timer\n"); 1381 timer_setup(&dev->timer, monitor_card, 0); 1382 dev->monitor_running = 1; 1383 mod_timer(&dev->timer, jiffies); 1384 } else 1385 DEBUGP(5, dev, "monitor already running\n"); 1386 DEBUGP(3, dev, "<- start_monitor\n"); 1387} 1388 1389static void stop_monitor(struct cm4000_dev *dev) 1390{ 1391 DEBUGP(3, dev, "-> stop_monitor\n"); 1392 if (dev->monitor_running) { 1393 DEBUGP(5, dev, "stopping monitor\n"); 1394 terminate_monitor(dev); 1395 /* reset monitor SM */ 1396 clear_bit(IS_ATR_VALID, &dev->flags); 1397 clear_bit(IS_ATR_PRESENT, &dev->flags); 1398 } else 1399 DEBUGP(5, dev, "monitor already stopped\n"); 1400 DEBUGP(3, dev, "<- stop_monitor\n"); 1401} 1402 1403static long cmm_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) 1404{ 1405 struct cm4000_dev *dev = filp->private_data; 1406 unsigned int iobase = dev->p_dev->resource[0]->start; 1407 struct inode *inode = file_inode(filp); 1408 struct pcmcia_device *link; 1409 int rc; 1410 void __user *argp = (void __user *)arg; 1411#ifdef CM4000_DEBUG 1412 char *ioctl_names[CM_IOC_MAXNR + 1] = { 1413 [_IOC_NR(CM_IOCGSTATUS)] "CM_IOCGSTATUS", 1414 [_IOC_NR(CM_IOCGATR)] "CM_IOCGATR", 1415 [_IOC_NR(CM_IOCARDOFF)] "CM_IOCARDOFF", 1416 [_IOC_NR(CM_IOCSPTS)] "CM_IOCSPTS", 1417 [_IOC_NR(CM_IOSDBGLVL)] "CM4000_DBGLVL", 1418 }; 1419 DEBUGP(3, dev, "cmm_ioctl(device=%d.%d) %s\n", imajor(inode), 1420 iminor(inode), ioctl_names[_IOC_NR(cmd)]); 1421#endif 1422 1423 mutex_lock(&cmm_mutex); 1424 rc = -ENODEV; 1425 link = dev_table[iminor(inode)]; 1426 if (!pcmcia_dev_present(link)) { 1427 DEBUGP(4, dev, "DEV_OK false\n"); 1428 goto out; 1429 } 1430 1431 if (test_bit(IS_CMM_ABSENT, &dev->flags)) { 1432 DEBUGP(4, dev, "CMM_ABSENT flag set\n"); 1433 goto out; 1434 } 1435 rc = -EINVAL; 1436 1437 if (_IOC_TYPE(cmd) != CM_IOC_MAGIC) { 1438 DEBUGP(4, dev, "ioctype mismatch\n"); 1439 goto out; 1440 } 1441 if (_IOC_NR(cmd) > CM_IOC_MAXNR) { 1442 DEBUGP(4, dev, "iocnr mismatch\n"); 1443 goto out; 1444 } 1445 rc = 0; 1446 1447 switch (cmd) { 1448 case CM_IOCGSTATUS: 1449 DEBUGP(4, dev, " ... in CM_IOCGSTATUS\n"); 1450 { 1451 int status; 1452 1453 /* clear other bits, but leave inserted & powered as 1454 * they are */ 1455 status = dev->flags0 & 3; 1456 if (test_bit(IS_ATR_PRESENT, &dev->flags)) 1457 status |= CM_ATR_PRESENT; 1458 if (test_bit(IS_ATR_VALID, &dev->flags)) 1459 status |= CM_ATR_VALID; 1460 if (test_bit(IS_CMM_ABSENT, &dev->flags)) 1461 status |= CM_NO_READER; 1462 if (test_bit(IS_BAD_CARD, &dev->flags)) 1463 status |= CM_BAD_CARD; 1464 if (copy_to_user(argp, &status, sizeof(int))) 1465 rc = -EFAULT; 1466 } 1467 break; 1468 case CM_IOCGATR: 1469 DEBUGP(4, dev, "... in CM_IOCGATR\n"); 1470 { 1471 struct atreq __user *atreq = argp; 1472 int tmp; 1473 /* allow nonblocking io and being interrupted */ 1474 if (wait_event_interruptible 1475 (dev->atrq, 1476 ((filp->f_flags & O_NONBLOCK) 1477 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) 1478 != 0)))) { 1479 if (filp->f_flags & O_NONBLOCK) 1480 rc = -EAGAIN; 1481 else 1482 rc = -ERESTARTSYS; 1483 break; 1484 } 1485 1486 rc = -EFAULT; 1487 if (test_bit(IS_ATR_VALID, &dev->flags) == 0) { 1488 tmp = -1; 1489 if (copy_to_user(&(atreq->atr_len), &tmp, 1490 sizeof(int))) 1491 break; 1492 } else { 1493 if (copy_to_user(atreq->atr, dev->atr, 1494 dev->atr_len)) 1495 break; 1496 1497 tmp = dev->atr_len; 1498 if (copy_to_user(&(atreq->atr_len), &tmp, sizeof(int))) 1499 break; 1500 } 1501 rc = 0; 1502 break; 1503 } 1504 case CM_IOCARDOFF: 1505 1506#ifdef CM4000_DEBUG 1507 DEBUGP(4, dev, "... in CM_IOCARDOFF\n"); 1508 if (dev->flags0 & 0x01) { 1509 DEBUGP(4, dev, " Card inserted\n"); 1510 } else { 1511 DEBUGP(2, dev, " No card inserted\n"); 1512 } 1513 if (dev->flags0 & 0x02) { 1514 DEBUGP(4, dev, " Card powered\n"); 1515 } else { 1516 DEBUGP(2, dev, " Card not powered\n"); 1517 } 1518#endif 1519 1520 /* is a card inserted and powered? */ 1521 if ((dev->flags0 & 0x01) && (dev->flags0 & 0x02)) { 1522 1523 /* get IO lock */ 1524 if (wait_event_interruptible 1525 (dev->ioq, 1526 ((filp->f_flags & O_NONBLOCK) 1527 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) 1528 == 0)))) { 1529 if (filp->f_flags & O_NONBLOCK) 1530 rc = -EAGAIN; 1531 else 1532 rc = -ERESTARTSYS; 1533 break; 1534 } 1535 /* Set Flags0 = 0x42 */ 1536 DEBUGP(4, dev, "Set Flags0=0x42 \n"); 1537 xoutb(0x42, REG_FLAGS0(iobase)); 1538 clear_bit(IS_ATR_PRESENT, &dev->flags); 1539 clear_bit(IS_ATR_VALID, &dev->flags); 1540 dev->mstate = M_CARDOFF; 1541 clear_bit(LOCK_IO, &dev->flags); 1542 if (wait_event_interruptible 1543 (dev->atrq, 1544 ((filp->f_flags & O_NONBLOCK) 1545 || (test_bit(IS_ATR_VALID, (void *)&dev->flags) != 1546 0)))) { 1547 if (filp->f_flags & O_NONBLOCK) 1548 rc = -EAGAIN; 1549 else 1550 rc = -ERESTARTSYS; 1551 break; 1552 } 1553 } 1554 /* release lock */ 1555 clear_bit(LOCK_IO, &dev->flags); 1556 wake_up_interruptible(&dev->ioq); 1557 1558 rc = 0; 1559 break; 1560 case CM_IOCSPTS: 1561 { 1562 struct ptsreq krnptsreq; 1563 1564 if (copy_from_user(&krnptsreq, argp, 1565 sizeof(struct ptsreq))) { 1566 rc = -EFAULT; 1567 break; 1568 } 1569 1570 rc = 0; 1571 DEBUGP(4, dev, "... in CM_IOCSPTS\n"); 1572 /* wait for ATR to get valid */ 1573 if (wait_event_interruptible 1574 (dev->atrq, 1575 ((filp->f_flags & O_NONBLOCK) 1576 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) 1577 != 0)))) { 1578 if (filp->f_flags & O_NONBLOCK) 1579 rc = -EAGAIN; 1580 else 1581 rc = -ERESTARTSYS; 1582 break; 1583 } 1584 /* get IO lock */ 1585 if (wait_event_interruptible 1586 (dev->ioq, 1587 ((filp->f_flags & O_NONBLOCK) 1588 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) 1589 == 0)))) { 1590 if (filp->f_flags & O_NONBLOCK) 1591 rc = -EAGAIN; 1592 else 1593 rc = -ERESTARTSYS; 1594 break; 1595 } 1596 1597 if ((rc = set_protocol(dev, &krnptsreq)) != 0) { 1598 /* auto power_on again */ 1599 dev->mstate = M_FETCH_ATR; 1600 clear_bit(IS_ATR_VALID, &dev->flags); 1601 } 1602 /* release lock */ 1603 clear_bit(LOCK_IO, &dev->flags); 1604 wake_up_interruptible(&dev->ioq); 1605 1606 } 1607 break; 1608#ifdef CM4000_DEBUG 1609 case CM_IOSDBGLVL: 1610 rc = -ENOTTY; 1611 break; 1612#endif 1613 default: 1614 DEBUGP(4, dev, "... in default (unknown IOCTL code)\n"); 1615 rc = -ENOTTY; 1616 } 1617out: 1618 mutex_unlock(&cmm_mutex); 1619 return rc; 1620} 1621 1622static int cmm_open(struct inode *inode, struct file *filp) 1623{ 1624 struct cm4000_dev *dev; 1625 struct pcmcia_device *link; 1626 int minor = iminor(inode); 1627 int ret; 1628 1629 if (minor >= CM4000_MAX_DEV) 1630 return -ENODEV; 1631 1632 mutex_lock(&cmm_mutex); 1633 link = dev_table[minor]; 1634 if (link == NULL || !pcmcia_dev_present(link)) { 1635 ret = -ENODEV; 1636 goto out; 1637 } 1638 1639 if (link->open) { 1640 ret = -EBUSY; 1641 goto out; 1642 } 1643 1644 dev = link->priv; 1645 filp->private_data = dev; 1646 1647 DEBUGP(2, dev, "-> cmm_open(device=%d.%d process=%s,%d)\n", 1648 imajor(inode), minor, current->comm, current->pid); 1649 1650 /* init device variables, they may be "polluted" after close 1651 * or, the device may never have been closed (i.e. open failed) 1652 */ 1653 1654 ZERO_DEV(dev); 1655 1656 /* opening will always block since the 1657 * monitor will be started by open, which 1658 * means we have to wait for ATR becoming 1659 * valid = block until valid (or card 1660 * inserted) 1661 */ 1662 if (filp->f_flags & O_NONBLOCK) { 1663 ret = -EAGAIN; 1664 goto out; 1665 } 1666 1667 dev->mdelay = T_50MSEC; 1668 1669 /* start monitoring the cardstatus */ 1670 start_monitor(dev); 1671 1672 link->open = 1; /* only one open per device */ 1673 1674 DEBUGP(2, dev, "<- cmm_open\n"); 1675 ret = stream_open(inode, filp); 1676out: 1677 mutex_unlock(&cmm_mutex); 1678 return ret; 1679} 1680 1681static int cmm_close(struct inode *inode, struct file *filp) 1682{ 1683 struct cm4000_dev *dev; 1684 struct pcmcia_device *link; 1685 int minor = iminor(inode); 1686 1687 if (minor >= CM4000_MAX_DEV) 1688 return -ENODEV; 1689 1690 link = dev_table[minor]; 1691 if (link == NULL) 1692 return -ENODEV; 1693 1694 dev = link->priv; 1695 1696 DEBUGP(2, dev, "-> cmm_close(maj/min=%d.%d)\n", 1697 imajor(inode), minor); 1698 1699 stop_monitor(dev); 1700 1701 ZERO_DEV(dev); 1702 1703 link->open = 0; /* only one open per device */ 1704 wake_up(&dev->devq); /* socket removed? */ 1705 1706 DEBUGP(2, dev, "cmm_close\n"); 1707 return 0; 1708} 1709 1710static void cmm_cm4000_release(struct pcmcia_device * link) 1711{ 1712 struct cm4000_dev *dev = link->priv; 1713 1714 /* dont terminate the monitor, rather rely on 1715 * close doing that for us. 1716 */ 1717 DEBUGP(3, dev, "-> cmm_cm4000_release\n"); 1718 while (link->open) { 1719 printk(KERN_INFO MODULE_NAME ": delaying release until " 1720 "process has terminated\n"); 1721 /* note: don't interrupt us: 1722 * close the applications which own 1723 * the devices _first_ ! 1724 */ 1725 wait_event(dev->devq, (link->open == 0)); 1726 } 1727 /* dev->devq=NULL; this cannot be zeroed earlier */ 1728 DEBUGP(3, dev, "<- cmm_cm4000_release\n"); 1729 return; 1730} 1731 1732/*==== Interface to PCMCIA Layer =======================================*/ 1733 1734static int cm4000_config_check(struct pcmcia_device *p_dev, void *priv_data) 1735{ 1736 return pcmcia_request_io(p_dev); 1737} 1738 1739static int cm4000_config(struct pcmcia_device * link, int devno) 1740{ 1741 link->config_flags |= CONF_AUTO_SET_IO; 1742 1743 /* read the config-tuples */ 1744 if (pcmcia_loop_config(link, cm4000_config_check, NULL)) 1745 goto cs_release; 1746 1747 if (pcmcia_enable_device(link)) 1748 goto cs_release; 1749 1750 return 0; 1751 1752cs_release: 1753 cm4000_release(link); 1754 return -ENODEV; 1755} 1756 1757static int cm4000_suspend(struct pcmcia_device *link) 1758{ 1759 struct cm4000_dev *dev; 1760 1761 dev = link->priv; 1762 stop_monitor(dev); 1763 1764 return 0; 1765} 1766 1767static int cm4000_resume(struct pcmcia_device *link) 1768{ 1769 struct cm4000_dev *dev; 1770 1771 dev = link->priv; 1772 if (link->open) 1773 start_monitor(dev); 1774 1775 return 0; 1776} 1777 1778static void cm4000_release(struct pcmcia_device *link) 1779{ 1780 cmm_cm4000_release(link); /* delay release until device closed */ 1781 pcmcia_disable_device(link); 1782} 1783 1784static int cm4000_probe(struct pcmcia_device *link) 1785{ 1786 struct cm4000_dev *dev; 1787 int i, ret; 1788 1789 for (i = 0; i < CM4000_MAX_DEV; i++) 1790 if (dev_table[i] == NULL) 1791 break; 1792 1793 if (i == CM4000_MAX_DEV) { 1794 printk(KERN_NOTICE MODULE_NAME ": all devices in use\n"); 1795 return -ENODEV; 1796 } 1797 1798 /* create a new cm4000_cs device */ 1799 dev = kzalloc(sizeof(struct cm4000_dev), GFP_KERNEL); 1800 if (dev == NULL) 1801 return -ENOMEM; 1802 1803 dev->p_dev = link; 1804 link->priv = dev; 1805 dev_table[i] = link; 1806 1807 init_waitqueue_head(&dev->devq); 1808 init_waitqueue_head(&dev->ioq); 1809 init_waitqueue_head(&dev->atrq); 1810 init_waitqueue_head(&dev->readq); 1811 1812 ret = cm4000_config(link, i); 1813 if (ret) { 1814 dev_table[i] = NULL; 1815 kfree(dev); 1816 return ret; 1817 } 1818 1819 device_create(cmm_class, NULL, MKDEV(major, i), NULL, "cmm%d", i); 1820 1821 return 0; 1822} 1823 1824static void cm4000_detach(struct pcmcia_device *link) 1825{ 1826 struct cm4000_dev *dev = link->priv; 1827 int devno; 1828 1829 /* find device */ 1830 for (devno = 0; devno < CM4000_MAX_DEV; devno++) 1831 if (dev_table[devno] == link) 1832 break; 1833 if (devno == CM4000_MAX_DEV) 1834 return; 1835 1836 stop_monitor(dev); 1837 1838 cm4000_release(link); 1839 1840 dev_table[devno] = NULL; 1841 kfree(dev); 1842 1843 device_destroy(cmm_class, MKDEV(major, devno)); 1844 1845 return; 1846} 1847 1848static const struct file_operations cm4000_fops = { 1849 .owner = THIS_MODULE, 1850 .read = cmm_read, 1851 .write = cmm_write, 1852 .unlocked_ioctl = cmm_ioctl, 1853 .open = cmm_open, 1854 .release= cmm_close, 1855 .llseek = no_llseek, 1856}; 1857 1858static const struct pcmcia_device_id cm4000_ids[] = { 1859 PCMCIA_DEVICE_MANF_CARD(0x0223, 0x0002), 1860 PCMCIA_DEVICE_PROD_ID12("CardMan", "4000", 0x2FB368CA, 0xA2BD8C39), 1861 PCMCIA_DEVICE_NULL, 1862}; 1863MODULE_DEVICE_TABLE(pcmcia, cm4000_ids); 1864 1865static struct pcmcia_driver cm4000_driver = { 1866 .owner = THIS_MODULE, 1867 .name = "cm4000_cs", 1868 .probe = cm4000_probe, 1869 .remove = cm4000_detach, 1870 .suspend = cm4000_suspend, 1871 .resume = cm4000_resume, 1872 .id_table = cm4000_ids, 1873}; 1874 1875static int __init cmm_init(void) 1876{ 1877 int rc; 1878 1879 cmm_class = class_create(THIS_MODULE, "cardman_4000"); 1880 if (IS_ERR(cmm_class)) 1881 return PTR_ERR(cmm_class); 1882 1883 major = register_chrdev(0, DEVICE_NAME, &cm4000_fops); 1884 if (major < 0) { 1885 printk(KERN_WARNING MODULE_NAME 1886 ": could not get major number\n"); 1887 class_destroy(cmm_class); 1888 return major; 1889 } 1890 1891 rc = pcmcia_register_driver(&cm4000_driver); 1892 if (rc < 0) { 1893 unregister_chrdev(major, DEVICE_NAME); 1894 class_destroy(cmm_class); 1895 return rc; 1896 } 1897 1898 return 0; 1899} 1900 1901static void __exit cmm_exit(void) 1902{ 1903 pcmcia_unregister_driver(&cm4000_driver); 1904 unregister_chrdev(major, DEVICE_NAME); 1905 class_destroy(cmm_class); 1906}; 1907 1908module_init(cmm_init); 1909module_exit(cmm_exit); 1910MODULE_LICENSE("Dual BSD/GPL");