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 fields. 120 * initialising to zero depends on it - see ZERO_DEV below. */ 121 unsigned char atr_csum; 122 unsigned char atr_len_retry; 123 unsigned short atr_len; 124 unsigned short rlen; /* bytes avail. after write */ 125 unsigned short rpos; /* latest read pos. write zeroes */ 126 unsigned char procbyte; /* T=0 procedure byte */ 127 unsigned char mstate; /* state of card monitor */ 128 unsigned char cwarn; /* slow down warning */ 129 unsigned char flags0; /* cardman IO-flags 0 */ 130 unsigned char flags1; /* cardman IO-flags 1 */ 131 unsigned int mdelay; /* variable monitor speeds, in jiffies */ 132 133 unsigned int baudv; /* baud value for speed */ 134 unsigned char ta1; 135 unsigned char proto; /* T=0, T=1, ... */ 136 unsigned long flags; /* lock+flags (MONITOR,IO,ATR) * for concurrent 137 access */ 138 139 unsigned char pts[4]; 140 141 struct timer_list timer; /* used to keep monitor running */ 142 int monitor_running; 143}; 144 145#define ZERO_DEV(dev) \ 146 memset(&dev->atr_csum,0, \ 147 sizeof(struct cm4000_dev) - \ 148 offsetof(struct cm4000_dev, atr_csum)) 149 150static struct pcmcia_device *dev_table[CM4000_MAX_DEV]; 151static struct class *cmm_class; 152 153/* This table doesn't use spaces after the comma between fields and thus 154 * violates process/coding-style.rst. However, I don't really think wrapping it around will 155 * make it any clearer to read -HW */ 156static unsigned char fi_di_table[10][14] = { 157/*FI 00 01 02 03 04 05 06 07 08 09 10 11 12 13 */ 158/*DI */ 159/* 0 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11}, 160/* 1 */ {0x01,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x91,0x11,0x11,0x11,0x11}, 161/* 2 */ {0x02,0x12,0x22,0x32,0x11,0x11,0x11,0x11,0x11,0x92,0xA2,0xB2,0x11,0x11}, 162/* 3 */ {0x03,0x13,0x23,0x33,0x43,0x53,0x63,0x11,0x11,0x93,0xA3,0xB3,0xC3,0xD3}, 163/* 4 */ {0x04,0x14,0x24,0x34,0x44,0x54,0x64,0x11,0x11,0x94,0xA4,0xB4,0xC4,0xD4}, 164/* 5 */ {0x00,0x15,0x25,0x35,0x45,0x55,0x65,0x11,0x11,0x95,0xA5,0xB5,0xC5,0xD5}, 165/* 6 */ {0x06,0x16,0x26,0x36,0x46,0x56,0x66,0x11,0x11,0x96,0xA6,0xB6,0xC6,0xD6}, 166/* 7 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11}, 167/* 8 */ {0x08,0x11,0x28,0x38,0x48,0x58,0x68,0x11,0x11,0x98,0xA8,0xB8,0xC8,0xD8}, 168/* 9 */ {0x09,0x19,0x29,0x39,0x49,0x59,0x69,0x11,0x11,0x99,0xA9,0xB9,0xC9,0xD9} 169}; 170 171#ifndef CM4000_DEBUG 172#define xoutb outb 173#define xinb inb 174#else 175static inline void xoutb(unsigned char val, unsigned short port) 176{ 177 pr_debug("outb(val=%.2x,port=%.4x)\n", val, port); 178 outb(val, port); 179} 180static inline unsigned char xinb(unsigned short port) 181{ 182 unsigned char val; 183 184 val = inb(port); 185 pr_debug("%.2x=inb(%.4x)\n", val, port); 186 187 return val; 188} 189#endif 190 191static inline unsigned char invert_revert(unsigned char ch) 192{ 193 return bitrev8(~ch); 194} 195 196static void str_invert_revert(unsigned char *b, int len) 197{ 198 int i; 199 200 for (i = 0; i < len; i++) 201 b[i] = invert_revert(b[i]); 202} 203 204#define ATRLENCK(dev,pos) \ 205 if (pos>=dev->atr_len || pos>=MAX_ATR) \ 206 goto return_0; 207 208static unsigned int calc_baudv(unsigned char fidi) 209{ 210 unsigned int wcrcf, wbrcf, fi_rfu, di_rfu; 211 212 fi_rfu = 372; 213 di_rfu = 1; 214 215 /* FI */ 216 switch ((fidi >> 4) & 0x0F) { 217 case 0x00: 218 wcrcf = 372; 219 break; 220 case 0x01: 221 wcrcf = 372; 222 break; 223 case 0x02: 224 wcrcf = 558; 225 break; 226 case 0x03: 227 wcrcf = 744; 228 break; 229 case 0x04: 230 wcrcf = 1116; 231 break; 232 case 0x05: 233 wcrcf = 1488; 234 break; 235 case 0x06: 236 wcrcf = 1860; 237 break; 238 case 0x07: 239 wcrcf = fi_rfu; 240 break; 241 case 0x08: 242 wcrcf = fi_rfu; 243 break; 244 case 0x09: 245 wcrcf = 512; 246 break; 247 case 0x0A: 248 wcrcf = 768; 249 break; 250 case 0x0B: 251 wcrcf = 1024; 252 break; 253 case 0x0C: 254 wcrcf = 1536; 255 break; 256 case 0x0D: 257 wcrcf = 2048; 258 break; 259 default: 260 wcrcf = fi_rfu; 261 break; 262 } 263 264 /* DI */ 265 switch (fidi & 0x0F) { 266 case 0x00: 267 wbrcf = di_rfu; 268 break; 269 case 0x01: 270 wbrcf = 1; 271 break; 272 case 0x02: 273 wbrcf = 2; 274 break; 275 case 0x03: 276 wbrcf = 4; 277 break; 278 case 0x04: 279 wbrcf = 8; 280 break; 281 case 0x05: 282 wbrcf = 16; 283 break; 284 case 0x06: 285 wbrcf = 32; 286 break; 287 case 0x07: 288 wbrcf = di_rfu; 289 break; 290 case 0x08: 291 wbrcf = 12; 292 break; 293 case 0x09: 294 wbrcf = 20; 295 break; 296 default: 297 wbrcf = di_rfu; 298 break; 299 } 300 301 return (wcrcf / wbrcf); 302} 303 304static unsigned short io_read_num_rec_bytes(unsigned int iobase, 305 unsigned short *s) 306{ 307 unsigned short tmp; 308 309 tmp = *s = 0; 310 do { 311 *s = tmp; 312 tmp = inb(REG_NUM_BYTES(iobase)) | 313 (inb(REG_FLAGS0(iobase)) & 4 ? 0x100 : 0); 314 } while (tmp != *s); 315 316 return *s; 317} 318 319static int parse_atr(struct cm4000_dev *dev) 320{ 321 unsigned char any_t1, any_t0; 322 unsigned char ch, ifno; 323 int ix, done; 324 325 DEBUGP(3, dev, "-> parse_atr: dev->atr_len = %i\n", dev->atr_len); 326 327 if (dev->atr_len < 3) { 328 DEBUGP(5, dev, "parse_atr: atr_len < 3\n"); 329 return 0; 330 } 331 332 if (dev->atr[0] == 0x3f) 333 set_bit(IS_INVREV, &dev->flags); 334 else 335 clear_bit(IS_INVREV, &dev->flags); 336 ix = 1; 337 ifno = 1; 338 ch = dev->atr[1]; 339 dev->proto = 0; /* XXX PROTO */ 340 any_t1 = any_t0 = done = 0; 341 dev->ta1 = 0x11; /* defaults to 9600 baud */ 342 do { 343 if (ifno == 1 && (ch & 0x10)) { 344 /* read first interface byte and TA1 is present */ 345 dev->ta1 = dev->atr[2]; 346 DEBUGP(5, dev, "Card says FiDi is 0x%.2x\n", dev->ta1); 347 ifno++; 348 } else if ((ifno == 2) && (ch & 0x10)) { /* TA(2) */ 349 dev->ta1 = 0x11; 350 ifno++; 351 } 352 353 DEBUGP(5, dev, "Yi=%.2x\n", ch & 0xf0); 354 ix += ((ch & 0x10) >> 4) /* no of int.face chars */ 355 +((ch & 0x20) >> 5) 356 + ((ch & 0x40) >> 6) 357 + ((ch & 0x80) >> 7); 358 /* ATRLENCK(dev,ix); */ 359 if (ch & 0x80) { /* TDi */ 360 ch = dev->atr[ix]; 361 if ((ch & 0x0f)) { 362 any_t1 = 1; 363 DEBUGP(5, dev, "card is capable of T=1\n"); 364 } else { 365 any_t0 = 1; 366 DEBUGP(5, dev, "card is capable of T=0\n"); 367 } 368 } else 369 done = 1; 370 } while (!done); 371 372 DEBUGP(5, dev, "ix=%d noHist=%d any_t1=%d\n", 373 ix, dev->atr[1] & 15, any_t1); 374 if (ix + 1 + (dev->atr[1] & 0x0f) + any_t1 != dev->atr_len) { 375 DEBUGP(5, dev, "length error\n"); 376 return 0; 377 } 378 if (any_t0) 379 set_bit(IS_ANY_T0, &dev->flags); 380 381 if (any_t1) { /* compute csum */ 382 dev->atr_csum = 0; 383#ifdef ATR_CSUM 384 for (i = 1; i < dev->atr_len; i++) 385 dev->atr_csum ^= dev->atr[i]; 386 if (dev->atr_csum) { 387 set_bit(IS_BAD_CSUM, &dev->flags); 388 DEBUGP(5, dev, "bad checksum\n"); 389 goto return_0; 390 } 391#endif 392 if (any_t0 == 0) 393 dev->proto = 1; /* XXX PROTO */ 394 set_bit(IS_ANY_T1, &dev->flags); 395 } 396 397 return 1; 398} 399 400struct card_fixup { 401 char atr[12]; 402 u_int8_t atr_len; 403 u_int8_t stopbits; 404}; 405 406static struct card_fixup card_fixups[] = { 407 { /* ACOS */ 408 .atr = { 0x3b, 0xb3, 0x11, 0x00, 0x00, 0x41, 0x01 }, 409 .atr_len = 7, 410 .stopbits = 0x03, 411 }, 412 { /* Motorola */ 413 .atr = {0x3b, 0x76, 0x13, 0x00, 0x00, 0x80, 0x62, 0x07, 414 0x41, 0x81, 0x81 }, 415 .atr_len = 11, 416 .stopbits = 0x04, 417 }, 418}; 419 420static void set_cardparameter(struct cm4000_dev *dev) 421{ 422 int i; 423 unsigned int iobase = dev->p_dev->resource[0]->start; 424 u_int8_t stopbits = 0x02; /* ISO default */ 425 426 DEBUGP(3, dev, "-> set_cardparameter\n"); 427 428 dev->flags1 = dev->flags1 | (((dev->baudv - 1) & 0x0100) >> 8); 429 xoutb(dev->flags1, REG_FLAGS1(iobase)); 430 DEBUGP(5, dev, "flags1 = 0x%02x\n", dev->flags1); 431 432 /* set baudrate */ 433 xoutb((unsigned char)((dev->baudv - 1) & 0xFF), REG_BAUDRATE(iobase)); 434 435 DEBUGP(5, dev, "baudv = %i -> write 0x%02x\n", dev->baudv, 436 ((dev->baudv - 1) & 0xFF)); 437 438 /* set stopbits */ 439 for (i = 0; i < ARRAY_SIZE(card_fixups); i++) { 440 if (!memcmp(dev->atr, card_fixups[i].atr, 441 card_fixups[i].atr_len)) 442 stopbits = card_fixups[i].stopbits; 443 } 444 xoutb(stopbits, REG_STOPBITS(iobase)); 445 446 DEBUGP(3, dev, "<- set_cardparameter\n"); 447} 448 449static int set_protocol(struct cm4000_dev *dev, struct ptsreq *ptsreq) 450{ 451 452 unsigned long tmp, i; 453 unsigned short num_bytes_read; 454 unsigned char pts_reply[4]; 455 ssize_t rc; 456 unsigned int iobase = dev->p_dev->resource[0]->start; 457 458 rc = 0; 459 460 DEBUGP(3, dev, "-> set_protocol\n"); 461 DEBUGP(5, dev, "ptsreq->Protocol = 0x%.8x, ptsreq->Flags=0x%.8x, " 462 "ptsreq->pts1=0x%.2x, ptsreq->pts2=0x%.2x, " 463 "ptsreq->pts3=0x%.2x\n", (unsigned int)ptsreq->protocol, 464 (unsigned int)ptsreq->flags, ptsreq->pts1, ptsreq->pts2, 465 ptsreq->pts3); 466 467 /* Fill PTS structure */ 468 dev->pts[0] = 0xff; 469 dev->pts[1] = 0x00; 470 tmp = ptsreq->protocol; 471 while ((tmp = (tmp >> 1)) > 0) 472 dev->pts[1]++; 473 dev->proto = dev->pts[1]; /* Set new protocol */ 474 dev->pts[1] = (0x01 << 4) | (dev->pts[1]); 475 476 /* Correct Fi/Di according to CM4000 Fi/Di table */ 477 DEBUGP(5, dev, "Ta(1) from ATR is 0x%.2x\n", dev->ta1); 478 /* set Fi/Di according to ATR TA(1) */ 479 dev->pts[2] = fi_di_table[dev->ta1 & 0x0F][(dev->ta1 >> 4) & 0x0F]; 480 481 /* Calculate PCK character */ 482 dev->pts[3] = dev->pts[0] ^ dev->pts[1] ^ dev->pts[2]; 483 484 DEBUGP(5, dev, "pts0=%.2x, pts1=%.2x, pts2=%.2x, pts3=%.2x\n", 485 dev->pts[0], dev->pts[1], dev->pts[2], dev->pts[3]); 486 487 /* check card convention */ 488 if (test_bit(IS_INVREV, &dev->flags)) 489 str_invert_revert(dev->pts, 4); 490 491 /* reset SM */ 492 xoutb(0x80, REG_FLAGS0(iobase)); 493 494 /* Enable access to the message buffer */ 495 DEBUGP(5, dev, "Enable access to the messages buffer\n"); 496 dev->flags1 = 0x20 /* T_Active */ 497 | (test_bit(IS_INVREV, &dev->flags) ? 0x02 : 0x00) /* inv parity */ 498 | ((dev->baudv >> 8) & 0x01); /* MSB-baud */ 499 xoutb(dev->flags1, REG_FLAGS1(iobase)); 500 501 DEBUGP(5, dev, "Enable message buffer -> flags1 = 0x%.2x\n", 502 dev->flags1); 503 504 /* write challenge to the buffer */ 505 DEBUGP(5, dev, "Write challenge to buffer: "); 506 for (i = 0; i < 4; i++) { 507 xoutb(i, REG_BUF_ADDR(iobase)); 508 xoutb(dev->pts[i], REG_BUF_DATA(iobase)); /* buf data */ 509#ifdef CM4000_DEBUG 510 pr_debug("0x%.2x ", dev->pts[i]); 511 } 512 pr_debug("\n"); 513#else 514 } 515#endif 516 517 /* set number of bytes to write */ 518 DEBUGP(5, dev, "Set number of bytes to write\n"); 519 xoutb(0x04, REG_NUM_SEND(iobase)); 520 521 /* Trigger CARDMAN CONTROLLER */ 522 xoutb(0x50, REG_FLAGS0(iobase)); 523 524 /* Monitor progress */ 525 /* wait for xmit done */ 526 DEBUGP(5, dev, "Waiting for NumRecBytes getting valid\n"); 527 528 for (i = 0; i < 100; i++) { 529 if (inb(REG_FLAGS0(iobase)) & 0x08) { 530 DEBUGP(5, dev, "NumRecBytes is valid\n"); 531 break; 532 } 533 usleep_range(10000, 11000); 534 } 535 if (i == 100) { 536 DEBUGP(5, dev, "Timeout waiting for NumRecBytes getting " 537 "valid\n"); 538 rc = -EIO; 539 goto exit_setprotocol; 540 } 541 542 DEBUGP(5, dev, "Reading NumRecBytes\n"); 543 for (i = 0; i < 100; i++) { 544 io_read_num_rec_bytes(iobase, &num_bytes_read); 545 if (num_bytes_read >= 4) { 546 DEBUGP(2, dev, "NumRecBytes = %i\n", num_bytes_read); 547 if (num_bytes_read > 4) { 548 rc = -EIO; 549 goto exit_setprotocol; 550 } 551 break; 552 } 553 usleep_range(10000, 11000); 554 } 555 556 /* check whether it is a short PTS reply? */ 557 if (num_bytes_read == 3) 558 i = 0; 559 560 if (i == 100) { 561 DEBUGP(5, dev, "Timeout reading num_bytes_read\n"); 562 rc = -EIO; 563 goto exit_setprotocol; 564 } 565 566 DEBUGP(5, dev, "Reset the CARDMAN CONTROLLER\n"); 567 xoutb(0x80, REG_FLAGS0(iobase)); 568 569 /* Read PPS reply */ 570 DEBUGP(5, dev, "Read PPS reply\n"); 571 for (i = 0; i < num_bytes_read; i++) { 572 xoutb(i, REG_BUF_ADDR(iobase)); 573 pts_reply[i] = inb(REG_BUF_DATA(iobase)); 574 } 575 576#ifdef CM4000_DEBUG 577 DEBUGP(2, dev, "PTSreply: "); 578 for (i = 0; i < num_bytes_read; i++) { 579 pr_debug("0x%.2x ", pts_reply[i]); 580 } 581 pr_debug("\n"); 582#endif /* CM4000_DEBUG */ 583 584 DEBUGP(5, dev, "Clear Tactive in Flags1\n"); 585 xoutb(0x20, REG_FLAGS1(iobase)); 586 587 /* Compare ptsreq and ptsreply */ 588 if ((dev->pts[0] == pts_reply[0]) && 589 (dev->pts[1] == pts_reply[1]) && 590 (dev->pts[2] == pts_reply[2]) && (dev->pts[3] == pts_reply[3])) { 591 /* setcardparameter according to PPS */ 592 dev->baudv = calc_baudv(dev->pts[2]); 593 set_cardparameter(dev); 594 } else if ((dev->pts[0] == pts_reply[0]) && 595 ((dev->pts[1] & 0xef) == pts_reply[1]) && 596 ((pts_reply[0] ^ pts_reply[1]) == pts_reply[2])) { 597 /* short PTS reply, set card parameter to default values */ 598 dev->baudv = calc_baudv(0x11); 599 set_cardparameter(dev); 600 } else 601 rc = -EIO; 602 603exit_setprotocol: 604 DEBUGP(3, dev, "<- set_protocol\n"); 605 return rc; 606} 607 608static int io_detect_cm4000(unsigned int iobase, struct cm4000_dev *dev) 609{ 610 611 /* note: statemachine is assumed to be reset */ 612 if (inb(REG_FLAGS0(iobase)) & 8) { 613 clear_bit(IS_ATR_VALID, &dev->flags); 614 set_bit(IS_CMM_ABSENT, &dev->flags); 615 return 0; /* detect CMM = 1 -> failure */ 616 } 617 /* xoutb(0x40, REG_FLAGS1(iobase)); detectCMM */ 618 xoutb(dev->flags1 | 0x40, REG_FLAGS1(iobase)); 619 if ((inb(REG_FLAGS0(iobase)) & 8) == 0) { 620 clear_bit(IS_ATR_VALID, &dev->flags); 621 set_bit(IS_CMM_ABSENT, &dev->flags); 622 return 0; /* detect CMM=0 -> failure */ 623 } 624 /* clear detectCMM again by restoring original flags1 */ 625 xoutb(dev->flags1, REG_FLAGS1(iobase)); 626 return 1; 627} 628 629static void terminate_monitor(struct cm4000_dev *dev) 630{ 631 632 /* tell the monitor to stop and wait until 633 * it terminates. 634 */ 635 DEBUGP(3, dev, "-> terminate_monitor\n"); 636 wait_event_interruptible(dev->devq, 637 test_and_set_bit(LOCK_MONITOR, 638 (void *)&dev->flags)); 639 640 /* now, LOCK_MONITOR has been set. 641 * allow a last cycle in the monitor. 642 * the monitor will indicate that it has 643 * finished by clearing this bit. 644 */ 645 DEBUGP(5, dev, "Now allow last cycle of monitor!\n"); 646 while (test_bit(LOCK_MONITOR, (void *)&dev->flags)) 647 msleep(25); 648 649 DEBUGP(5, dev, "Delete timer\n"); 650 del_timer_sync(&dev->timer); 651#ifdef CM4000_DEBUG 652 dev->monitor_running = 0; 653#endif 654 655 DEBUGP(3, dev, "<- terminate_monitor\n"); 656} 657 658/* 659 * monitor the card every 50msec. as a side-effect, retrieve the 660 * atr once a card is inserted. another side-effect of retrieving the 661 * atr is that the card will be powered on, so there is no need to 662 * power on the card explicitly from the application: the driver 663 * is already doing that for you. 664 */ 665 666static void monitor_card(struct timer_list *t) 667{ 668 struct cm4000_dev *dev = from_timer(dev, t, timer); 669 unsigned int iobase = dev->p_dev->resource[0]->start; 670 unsigned short s; 671 struct ptsreq ptsreq; 672 int i, atrc; 673 674 DEBUGP(7, dev, "-> monitor_card\n"); 675 676 /* if someone has set the lock for us: we're done! */ 677 if (test_and_set_bit(LOCK_MONITOR, &dev->flags)) { 678 DEBUGP(4, dev, "About to stop monitor\n"); 679 /* no */ 680 dev->rlen = 681 dev->rpos = 682 dev->atr_csum = dev->atr_len_retry = dev->cwarn = 0; 683 dev->mstate = M_FETCH_ATR; 684 clear_bit(LOCK_MONITOR, &dev->flags); 685 /* close et al. are sleeping on devq, so wake it */ 686 wake_up_interruptible(&dev->devq); 687 DEBUGP(2, dev, "<- monitor_card (we are done now)\n"); 688 return; 689 } 690 691 /* try to lock io: if it is already locked, just add another timer */ 692 if (test_and_set_bit(LOCK_IO, (void *)&dev->flags)) { 693 DEBUGP(4, dev, "Couldn't get IO lock\n"); 694 goto return_with_timer; 695 } 696 697 /* is a card/a reader inserted at all ? */ 698 dev->flags0 = xinb(REG_FLAGS0(iobase)); 699 DEBUGP(7, dev, "dev->flags0 = 0x%2x\n", dev->flags0); 700 DEBUGP(7, dev, "smartcard present: %s\n", 701 dev->flags0 & 1 ? "yes" : "no"); 702 DEBUGP(7, dev, "cardman present: %s\n", 703 dev->flags0 == 0xff ? "no" : "yes"); 704 705 if ((dev->flags0 & 1) == 0 /* no smartcard inserted */ 706 || dev->flags0 == 0xff) { /* no cardman inserted */ 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; 712 713 dev->flags &= 0x000000ff; /* only keep IO and MONITOR locks */ 714 715 if (dev->flags0 == 0xff) { 716 DEBUGP(4, dev, "set IS_CMM_ABSENT bit\n"); 717 set_bit(IS_CMM_ABSENT, &dev->flags); 718 } else if (test_bit(IS_CMM_ABSENT, &dev->flags)) { 719 DEBUGP(4, dev, "clear IS_CMM_ABSENT bit " 720 "(card is removed)\n"); 721 clear_bit(IS_CMM_ABSENT, &dev->flags); 722 } 723 724 goto release_io; 725 } else if ((dev->flags0 & 1) && test_bit(IS_CMM_ABSENT, &dev->flags)) { 726 /* cardman and card present but cardman was absent before 727 * (after suspend with inserted card) */ 728 DEBUGP(4, dev, "clear IS_CMM_ABSENT bit (card is inserted)\n"); 729 clear_bit(IS_CMM_ABSENT, &dev->flags); 730 } 731 732 if (test_bit(IS_ATR_VALID, &dev->flags) == 1) { 733 DEBUGP(7, dev, "believe ATR is already valid (do nothing)\n"); 734 goto release_io; 735 } 736 737 switch (dev->mstate) { 738 case M_CARDOFF: { 739 unsigned char flags0; 740 741 DEBUGP(4, dev, "M_CARDOFF\n"); 742 flags0 = inb(REG_FLAGS0(iobase)); 743 if (flags0 & 0x02) { 744 /* wait until Flags0 indicate power is off */ 745 dev->mdelay = T_10MSEC; 746 } else { 747 /* Flags0 indicate power off and no card inserted now; 748 * Reset CARDMAN CONTROLLER */ 749 xoutb(0x80, REG_FLAGS0(iobase)); 750 751 /* prepare for fetching ATR again: after card off ATR 752 * is read again automatically */ 753 dev->rlen = 754 dev->rpos = 755 dev->atr_csum = 756 dev->atr_len_retry = dev->cwarn = 0; 757 dev->mstate = M_FETCH_ATR; 758 759 /* minimal gap between CARDOFF and read ATR is 50msec */ 760 dev->mdelay = T_50MSEC; 761 } 762 break; 763 } 764 case M_FETCH_ATR: 765 DEBUGP(4, dev, "M_FETCH_ATR\n"); 766 xoutb(0x80, REG_FLAGS0(iobase)); 767 DEBUGP(4, dev, "Reset BAUDV to 9600\n"); 768 dev->baudv = 0x173; /* 9600 */ 769 xoutb(0x02, REG_STOPBITS(iobase)); /* stopbits=2 */ 770 xoutb(0x73, REG_BAUDRATE(iobase)); /* baud value */ 771 xoutb(0x21, REG_FLAGS1(iobase)); /* T_Active=1, baud 772 value */ 773 /* warm start vs. power on: */ 774 xoutb(dev->flags0 & 2 ? 0x46 : 0x44, REG_FLAGS0(iobase)); 775 dev->mdelay = T_40MSEC; 776 dev->mstate = M_TIMEOUT_WAIT; 777 break; 778 case M_TIMEOUT_WAIT: 779 DEBUGP(4, dev, "M_TIMEOUT_WAIT\n"); 780 /* numRecBytes */ 781 io_read_num_rec_bytes(iobase, &dev->atr_len); 782 dev->mdelay = T_10MSEC; 783 dev->mstate = M_READ_ATR_LEN; 784 break; 785 case M_READ_ATR_LEN: 786 DEBUGP(4, dev, "M_READ_ATR_LEN\n"); 787 /* infinite loop possible, since there is no timeout */ 788 789#define MAX_ATR_LEN_RETRY 100 790 791 if (dev->atr_len == io_read_num_rec_bytes(iobase, &s)) { 792 if (dev->atr_len_retry++ >= MAX_ATR_LEN_RETRY) { /* + XX msec */ 793 dev->mdelay = T_10MSEC; 794 dev->mstate = M_READ_ATR; 795 } 796 } else { 797 dev->atr_len = s; 798 dev->atr_len_retry = 0; /* set new timeout */ 799 } 800 801 DEBUGP(4, dev, "Current ATR_LEN = %i\n", dev->atr_len); 802 break; 803 case M_READ_ATR: 804 DEBUGP(4, dev, "M_READ_ATR\n"); 805 xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */ 806 for (i = 0; i < dev->atr_len; i++) { 807 xoutb(i, REG_BUF_ADDR(iobase)); 808 dev->atr[i] = inb(REG_BUF_DATA(iobase)); 809 } 810 /* Deactivate T_Active flags */ 811 DEBUGP(4, dev, "Deactivate T_Active flags\n"); 812 dev->flags1 = 0x01; 813 xoutb(dev->flags1, REG_FLAGS1(iobase)); 814 815 /* atr is present (which doesn't mean it's valid) */ 816 set_bit(IS_ATR_PRESENT, &dev->flags); 817 if (dev->atr[0] == 0x03) 818 str_invert_revert(dev->atr, dev->atr_len); 819 atrc = parse_atr(dev); 820 if (atrc == 0) { /* atr invalid */ 821 dev->mdelay = 0; 822 dev->mstate = M_BAD_CARD; 823 } else { 824 dev->mdelay = T_50MSEC; 825 dev->mstate = M_ATR_PRESENT; 826 set_bit(IS_ATR_VALID, &dev->flags); 827 } 828 829 if (test_bit(IS_ATR_VALID, &dev->flags) == 1) { 830 DEBUGP(4, dev, "monitor_card: ATR valid\n"); 831 /* if ta1 == 0x11, no PPS necessary (default values) */ 832 /* do not do PPS with multi protocol cards */ 833 if ((test_bit(IS_AUTOPPS_ACT, &dev->flags) == 0) && 834 (dev->ta1 != 0x11) && 835 !(test_bit(IS_ANY_T0, &dev->flags) && 836 test_bit(IS_ANY_T1, &dev->flags))) { 837 DEBUGP(4, dev, "Perform AUTOPPS\n"); 838 set_bit(IS_AUTOPPS_ACT, &dev->flags); 839 ptsreq.protocol = (0x01 << dev->proto); 840 ptsreq.flags = 0x01; 841 ptsreq.pts1 = 0x00; 842 ptsreq.pts2 = 0x00; 843 ptsreq.pts3 = 0x00; 844 if (set_protocol(dev, &ptsreq) == 0) { 845 DEBUGP(4, dev, "AUTOPPS ret SUCC\n"); 846 clear_bit(IS_AUTOPPS_ACT, &dev->flags); 847 wake_up_interruptible(&dev->atrq); 848 } else { 849 DEBUGP(4, dev, "AUTOPPS failed: " 850 "repower using defaults\n"); 851 /* prepare for repowering */ 852 clear_bit(IS_ATR_PRESENT, &dev->flags); 853 clear_bit(IS_ATR_VALID, &dev->flags); 854 dev->rlen = 855 dev->rpos = 856 dev->atr_csum = 857 dev->atr_len_retry = dev->cwarn = 0; 858 dev->mstate = M_FETCH_ATR; 859 860 dev->mdelay = T_50MSEC; 861 } 862 } else { 863 /* for cards which use slightly different 864 * params (extra guard time) */ 865 set_cardparameter(dev); 866 if (test_bit(IS_AUTOPPS_ACT, &dev->flags) == 1) 867 DEBUGP(4, dev, "AUTOPPS already active " 868 "2nd try:use default values\n"); 869 if (dev->ta1 == 0x11) 870 DEBUGP(4, dev, "No AUTOPPS necessary " 871 "TA(1)==0x11\n"); 872 if (test_bit(IS_ANY_T0, &dev->flags) 873 && test_bit(IS_ANY_T1, &dev->flags)) 874 DEBUGP(4, dev, "Do NOT perform AUTOPPS " 875 "with multiprotocol cards\n"); 876 clear_bit(IS_AUTOPPS_ACT, &dev->flags); 877 wake_up_interruptible(&dev->atrq); 878 } 879 } else { 880 DEBUGP(4, dev, "ATR invalid\n"); 881 wake_up_interruptible(&dev->atrq); 882 } 883 break; 884 case M_BAD_CARD: 885 DEBUGP(4, dev, "M_BAD_CARD\n"); 886 /* slow down warning, but prompt immediately after insertion */ 887 if (dev->cwarn == 0 || dev->cwarn == 10) { 888 set_bit(IS_BAD_CARD, &dev->flags); 889 dev_warn(&dev->p_dev->dev, MODULE_NAME ": "); 890 if (test_bit(IS_BAD_CSUM, &dev->flags)) { 891 DEBUGP(4, dev, "ATR checksum (0x%.2x, should " 892 "be zero) failed\n", dev->atr_csum); 893 } 894#ifdef CM4000_DEBUG 895 else if (test_bit(IS_BAD_LENGTH, &dev->flags)) { 896 DEBUGP(4, dev, "ATR length error\n"); 897 } else { 898 DEBUGP(4, dev, "card damaged or wrong way " 899 "inserted\n"); 900 } 901#endif 902 dev->cwarn = 0; 903 wake_up_interruptible(&dev->atrq); /* wake open */ 904 } 905 dev->cwarn++; 906 dev->mdelay = T_100MSEC; 907 dev->mstate = M_FETCH_ATR; 908 break; 909 default: 910 DEBUGP(7, dev, "Unknown action\n"); 911 break; /* nothing */ 912 } 913 914release_io: 915 DEBUGP(7, dev, "release_io\n"); 916 clear_bit(LOCK_IO, &dev->flags); 917 wake_up_interruptible(&dev->ioq); /* whoever needs IO */ 918 919return_with_timer: 920 DEBUGP(7, dev, "<- monitor_card (returns with timer)\n"); 921 mod_timer(&dev->timer, jiffies + dev->mdelay); 922 clear_bit(LOCK_MONITOR, &dev->flags); 923} 924 925/* Interface to userland (file_operations) */ 926 927static ssize_t cmm_read(struct file *filp, __user char *buf, size_t count, 928 loff_t *ppos) 929{ 930 struct cm4000_dev *dev = filp->private_data; 931 unsigned int iobase = dev->p_dev->resource[0]->start; 932 ssize_t rc; 933 int i, j, k; 934 935 DEBUGP(2, dev, "-> cmm_read(%s,%d)\n", current->comm, current->pid); 936 937 if (count == 0) /* according to manpage */ 938 return 0; 939 940 if (!pcmcia_dev_present(dev->p_dev) || /* device removed */ 941 test_bit(IS_CMM_ABSENT, &dev->flags)) 942 return -ENODEV; 943 944 if (test_bit(IS_BAD_CSUM, &dev->flags)) 945 return -EIO; 946 947 /* also see the note about this in cmm_write */ 948 if (wait_event_interruptible 949 (dev->atrq, 950 ((filp->f_flags & O_NONBLOCK) 951 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) { 952 if (filp->f_flags & O_NONBLOCK) 953 return -EAGAIN; 954 return -ERESTARTSYS; 955 } 956 957 if (test_bit(IS_ATR_VALID, &dev->flags) == 0) 958 return -EIO; 959 960 /* this one implements blocking IO */ 961 if (wait_event_interruptible 962 (dev->readq, 963 ((filp->f_flags & O_NONBLOCK) || (dev->rpos < dev->rlen)))) { 964 if (filp->f_flags & O_NONBLOCK) 965 return -EAGAIN; 966 return -ERESTARTSYS; 967 } 968 969 /* lock io */ 970 if (wait_event_interruptible 971 (dev->ioq, 972 ((filp->f_flags & O_NONBLOCK) 973 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) { 974 if (filp->f_flags & O_NONBLOCK) 975 return -EAGAIN; 976 return -ERESTARTSYS; 977 } 978 979 rc = 0; 980 dev->flags0 = inb(REG_FLAGS0(iobase)); 981 if ((dev->flags0 & 1) == 0 /* no smartcard inserted */ 982 || dev->flags0 == 0xff) { /* no cardman inserted */ 983 clear_bit(IS_ATR_VALID, &dev->flags); 984 if (dev->flags0 & 1) { 985 set_bit(IS_CMM_ABSENT, &dev->flags); 986 rc = -ENODEV; 987 } else { 988 rc = -EIO; 989 } 990 goto release_io; 991 } 992 993 DEBUGP(4, dev, "begin read answer\n"); 994 j = min(count, (size_t)(dev->rlen - dev->rpos)); 995 k = dev->rpos; 996 if (k + j > 255) 997 j = 256 - k; 998 DEBUGP(4, dev, "read1 j=%d\n", j); 999 for (i = 0; i < j; i++) { 1000 xoutb(k++, REG_BUF_ADDR(iobase)); 1001 dev->rbuf[i] = xinb(REG_BUF_DATA(iobase)); 1002 } 1003 j = min(count, (size_t)(dev->rlen - dev->rpos)); 1004 if (k + j > 255) { 1005 DEBUGP(4, dev, "read2 j=%d\n", j); 1006 dev->flags1 |= 0x10; /* MSB buf addr set */ 1007 xoutb(dev->flags1, REG_FLAGS1(iobase)); 1008 for (; i < j; i++) { 1009 xoutb(k++, REG_BUF_ADDR(iobase)); 1010 dev->rbuf[i] = xinb(REG_BUF_DATA(iobase)); 1011 } 1012 } 1013 1014 if (dev->proto == 0 && count > dev->rlen - dev->rpos && i) { 1015 DEBUGP(4, dev, "T=0 and count > buffer\n"); 1016 dev->rbuf[i] = dev->rbuf[i - 1]; 1017 dev->rbuf[i - 1] = dev->procbyte; 1018 j++; 1019 } 1020 count = j; 1021 1022 dev->rpos = dev->rlen + 1; 1023 1024 /* Clear T1Active */ 1025 DEBUGP(4, dev, "Clear T1Active\n"); 1026 dev->flags1 &= 0xdf; 1027 xoutb(dev->flags1, REG_FLAGS1(iobase)); 1028 1029 xoutb(0, REG_FLAGS1(iobase)); /* clear detectCMM */ 1030 /* last check before exit */ 1031 if (!io_detect_cm4000(iobase, dev)) { 1032 rc = -ENODEV; 1033 goto release_io; 1034 } 1035 1036 if (test_bit(IS_INVREV, &dev->flags) && count > 0) 1037 str_invert_revert(dev->rbuf, count); 1038 1039 if (copy_to_user(buf, dev->rbuf, count)) 1040 rc = -EFAULT; 1041 1042release_io: 1043 clear_bit(LOCK_IO, &dev->flags); 1044 wake_up_interruptible(&dev->ioq); 1045 1046 DEBUGP(2, dev, "<- cmm_read returns: rc = %zi\n", 1047 (rc < 0 ? rc : count)); 1048 return rc < 0 ? rc : count; 1049} 1050 1051static ssize_t cmm_write(struct file *filp, const char __user *buf, 1052 size_t count, loff_t *ppos) 1053{ 1054 struct cm4000_dev *dev = filp->private_data; 1055 unsigned int iobase = dev->p_dev->resource[0]->start; 1056 unsigned short s; 1057 unsigned char tmp; 1058 unsigned char infolen; 1059 unsigned char sendT0; 1060 unsigned short nsend; 1061 unsigned short nr; 1062 ssize_t rc; 1063 int i; 1064 1065 DEBUGP(2, dev, "-> cmm_write(%s,%d)\n", current->comm, current->pid); 1066 1067 if (count == 0) /* according to manpage */ 1068 return 0; 1069 1070 if (dev->proto == 0 && count < 4) { 1071 /* T0 must have at least 4 bytes */ 1072 DEBUGP(4, dev, "T0 short write\n"); 1073 return -EIO; 1074 } 1075 1076 nr = count & 0x1ff; /* max bytes to write */ 1077 1078 sendT0 = dev->proto ? 0 : nr > 5 ? 0x08 : 0; 1079 1080 if (!pcmcia_dev_present(dev->p_dev) || /* device removed */ 1081 test_bit(IS_CMM_ABSENT, &dev->flags)) 1082 return -ENODEV; 1083 1084 if (test_bit(IS_BAD_CSUM, &dev->flags)) { 1085 DEBUGP(4, dev, "bad csum\n"); 1086 return -EIO; 1087 } 1088 1089 /* 1090 * wait for atr to become valid. 1091 * note: it is important to lock this code. if we dont, the monitor 1092 * could be run between test_bit and the call to sleep on the 1093 * atr-queue. if *then* the monitor detects atr valid, it will wake up 1094 * any process on the atr-queue, *but* since we have been interrupted, 1095 * we do not yet sleep on this queue. this would result in a missed 1096 * wake_up and the calling process would sleep forever (until 1097 * interrupted). also, do *not* restore_flags before sleep_on, because 1098 * this could result in the same situation! 1099 */ 1100 if (wait_event_interruptible 1101 (dev->atrq, 1102 ((filp->f_flags & O_NONBLOCK) 1103 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) { 1104 if (filp->f_flags & O_NONBLOCK) 1105 return -EAGAIN; 1106 return -ERESTARTSYS; 1107 } 1108 1109 if (test_bit(IS_ATR_VALID, &dev->flags) == 0) { /* invalid atr */ 1110 DEBUGP(4, dev, "invalid ATR\n"); 1111 return -EIO; 1112 } 1113 1114 /* lock io */ 1115 if (wait_event_interruptible 1116 (dev->ioq, 1117 ((filp->f_flags & O_NONBLOCK) 1118 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) { 1119 if (filp->f_flags & O_NONBLOCK) 1120 return -EAGAIN; 1121 return -ERESTARTSYS; 1122 } 1123 1124 if (copy_from_user(dev->sbuf, buf, ((count > 512) ? 512 : count))) 1125 return -EFAULT; 1126 1127 rc = 0; 1128 dev->flags0 = inb(REG_FLAGS0(iobase)); 1129 if ((dev->flags0 & 1) == 0 /* no smartcard inserted */ 1130 || dev->flags0 == 0xff) { /* no cardman inserted */ 1131 clear_bit(IS_ATR_VALID, &dev->flags); 1132 if (dev->flags0 & 1) { 1133 set_bit(IS_CMM_ABSENT, &dev->flags); 1134 rc = -ENODEV; 1135 } else { 1136 DEBUGP(4, dev, "IO error\n"); 1137 rc = -EIO; 1138 } 1139 goto release_io; 1140 } 1141 1142 xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */ 1143 1144 if (!io_detect_cm4000(iobase, dev)) { 1145 rc = -ENODEV; 1146 goto release_io; 1147 } 1148 1149 /* reflect T=0 send/read mode in flags1 */ 1150 dev->flags1 |= (sendT0); 1151 1152 set_cardparameter(dev); 1153 1154 /* dummy read, reset flag procedure received */ 1155 tmp = inb(REG_FLAGS1(iobase)); 1156 1157 dev->flags1 = 0x20 /* T_Active */ 1158 | (sendT0) 1159 | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0)/* inverse parity */ 1160 | (((dev->baudv - 1) & 0x0100) >> 8); /* MSB-Baud */ 1161 DEBUGP(1, dev, "set dev->flags1 = 0x%.2x\n", dev->flags1); 1162 xoutb(dev->flags1, REG_FLAGS1(iobase)); 1163 1164 /* xmit data */ 1165 DEBUGP(4, dev, "Xmit data\n"); 1166 for (i = 0; i < nr; i++) { 1167 if (i >= 256) { 1168 dev->flags1 = 0x20 /* T_Active */ 1169 | (sendT0) /* SendT0 */ 1170 /* inverse parity: */ 1171 | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0) 1172 | (((dev->baudv - 1) & 0x0100) >> 8) /* MSB-Baud */ 1173 | 0x10; /* set address high */ 1174 DEBUGP(4, dev, "dev->flags = 0x%.2x - set address " 1175 "high\n", dev->flags1); 1176 xoutb(dev->flags1, REG_FLAGS1(iobase)); 1177 } 1178 if (test_bit(IS_INVREV, &dev->flags)) { 1179 DEBUGP(4, dev, "Apply inverse convention for 0x%.2x " 1180 "-> 0x%.2x\n", (unsigned char)dev->sbuf[i], 1181 invert_revert(dev->sbuf[i])); 1182 xoutb(i, REG_BUF_ADDR(iobase)); 1183 xoutb(invert_revert(dev->sbuf[i]), 1184 REG_BUF_DATA(iobase)); 1185 } else { 1186 xoutb(i, REG_BUF_ADDR(iobase)); 1187 xoutb(dev->sbuf[i], REG_BUF_DATA(iobase)); 1188 } 1189 } 1190 DEBUGP(4, dev, "Xmit done\n"); 1191 1192 if (dev->proto == 0) { 1193 /* T=0 proto: 0 byte reply */ 1194 if (nr == 4) { 1195 DEBUGP(4, dev, "T=0 assumes 0 byte reply\n"); 1196 xoutb(i, REG_BUF_ADDR(iobase)); 1197 if (test_bit(IS_INVREV, &dev->flags)) 1198 xoutb(0xff, REG_BUF_DATA(iobase)); 1199 else 1200 xoutb(0x00, REG_BUF_DATA(iobase)); 1201 } 1202 1203 /* numSendBytes */ 1204 if (sendT0) 1205 nsend = nr; 1206 else { 1207 if (nr == 4) 1208 nsend = 5; 1209 else { 1210 nsend = 5 + (unsigned char)dev->sbuf[4]; 1211 if (dev->sbuf[4] == 0) 1212 nsend += 0x100; 1213 } 1214 } 1215 } else 1216 nsend = nr; 1217 1218 /* T0: output procedure byte */ 1219 if (test_bit(IS_INVREV, &dev->flags)) { 1220 DEBUGP(4, dev, "T=0 set Procedure byte (inverse-reverse) " 1221 "0x%.2x\n", invert_revert(dev->sbuf[1])); 1222 xoutb(invert_revert(dev->sbuf[1]), REG_NUM_BYTES(iobase)); 1223 } else { 1224 DEBUGP(4, dev, "T=0 set Procedure byte 0x%.2x\n", dev->sbuf[1]); 1225 xoutb(dev->sbuf[1], REG_NUM_BYTES(iobase)); 1226 } 1227 1228 DEBUGP(1, dev, "set NumSendBytes = 0x%.2x\n", 1229 (unsigned char)(nsend & 0xff)); 1230 xoutb((unsigned char)(nsend & 0xff), REG_NUM_SEND(iobase)); 1231 1232 DEBUGP(1, dev, "Trigger CARDMAN CONTROLLER (0x%.2x)\n", 1233 0x40 /* SM_Active */ 1234 | (dev->flags0 & 2 ? 0 : 4) /* power on if needed */ 1235 |(dev->proto ? 0x10 : 0x08) /* T=1/T=0 */ 1236 |(nsend & 0x100) >> 8 /* MSB numSendBytes */ ); 1237 xoutb(0x40 /* SM_Active */ 1238 | (dev->flags0 & 2 ? 0 : 4) /* power on if needed */ 1239 |(dev->proto ? 0x10 : 0x08) /* T=1/T=0 */ 1240 |(nsend & 0x100) >> 8, /* MSB numSendBytes */ 1241 REG_FLAGS0(iobase)); 1242 1243 /* wait for xmit done */ 1244 if (dev->proto == 1) { 1245 DEBUGP(4, dev, "Wait for xmit done\n"); 1246 for (i = 0; i < 1000; i++) { 1247 if (inb(REG_FLAGS0(iobase)) & 0x08) 1248 break; 1249 msleep_interruptible(10); 1250 } 1251 if (i == 1000) { 1252 DEBUGP(4, dev, "timeout waiting for xmit done\n"); 1253 rc = -EIO; 1254 goto release_io; 1255 } 1256 } 1257 1258 /* T=1: wait for infoLen */ 1259 1260 infolen = 0; 1261 if (dev->proto) { 1262 /* wait until infoLen is valid */ 1263 for (i = 0; i < 6000; i++) { /* max waiting time of 1 min */ 1264 io_read_num_rec_bytes(iobase, &s); 1265 if (s >= 3) { 1266 infolen = inb(REG_FLAGS1(iobase)); 1267 DEBUGP(4, dev, "infolen=%d\n", infolen); 1268 break; 1269 } 1270 msleep_interruptible(10); 1271 } 1272 if (i == 6000) { 1273 DEBUGP(4, dev, "timeout waiting for infoLen\n"); 1274 rc = -EIO; 1275 goto release_io; 1276 } 1277 } else 1278 clear_bit(IS_PROCBYTE_PRESENT, &dev->flags); 1279 1280 /* numRecBytes | bit9 of numRecytes */ 1281 io_read_num_rec_bytes(iobase, &dev->rlen); 1282 for (i = 0; i < 600; i++) { /* max waiting time of 2 sec */ 1283 if (dev->proto) { 1284 if (dev->rlen >= infolen + 4) 1285 break; 1286 } 1287 msleep_interruptible(10); 1288 /* numRecBytes | bit9 of numRecytes */ 1289 io_read_num_rec_bytes(iobase, &s); 1290 if (s > dev->rlen) { 1291 DEBUGP(1, dev, "NumRecBytes inc (reset timeout)\n"); 1292 i = 0; /* reset timeout */ 1293 dev->rlen = s; 1294 } 1295 /* T=0: we are done when numRecBytes doesn't 1296 * increment any more and NoProcedureByte 1297 * is set and numRecBytes == bytes sent + 6 1298 * (header bytes + data + 1 for sw2) 1299 * except when the card replies an error 1300 * which means, no data will be sent back. 1301 */ 1302 else if (dev->proto == 0) { 1303 if ((inb(REG_BUF_ADDR(iobase)) & 0x80)) { 1304 /* no procedure byte received since last read */ 1305 DEBUGP(1, dev, "NoProcedure byte set\n"); 1306 /* i=0; */ 1307 } else { 1308 /* procedure byte received since last read */ 1309 DEBUGP(1, dev, "NoProcedure byte unset " 1310 "(reset timeout)\n"); 1311 dev->procbyte = inb(REG_FLAGS1(iobase)); 1312 DEBUGP(1, dev, "Read procedure byte 0x%.2x\n", 1313 dev->procbyte); 1314 i = 0; /* resettimeout */ 1315 } 1316 if (inb(REG_FLAGS0(iobase)) & 0x08) { 1317 DEBUGP(1, dev, "T0Done flag (read reply)\n"); 1318 break; 1319 } 1320 } 1321 if (dev->proto) 1322 infolen = inb(REG_FLAGS1(iobase)); 1323 } 1324 if (i == 600) { 1325 DEBUGP(1, dev, "timeout waiting for numRecBytes\n"); 1326 rc = -EIO; 1327 goto release_io; 1328 } else { 1329 if (dev->proto == 0) { 1330 DEBUGP(1, dev, "Wait for T0Done bit to be set\n"); 1331 for (i = 0; i < 1000; i++) { 1332 if (inb(REG_FLAGS0(iobase)) & 0x08) 1333 break; 1334 msleep_interruptible(10); 1335 } 1336 if (i == 1000) { 1337 DEBUGP(1, dev, "timeout waiting for T0Done\n"); 1338 rc = -EIO; 1339 goto release_io; 1340 } 1341 1342 dev->procbyte = inb(REG_FLAGS1(iobase)); 1343 DEBUGP(4, dev, "Read procedure byte 0x%.2x\n", 1344 dev->procbyte); 1345 1346 io_read_num_rec_bytes(iobase, &dev->rlen); 1347 DEBUGP(4, dev, "Read NumRecBytes = %i\n", dev->rlen); 1348 1349 } 1350 } 1351 /* T=1: read offset=zero, T=0: read offset=after challenge */ 1352 dev->rpos = dev->proto ? 0 : nr == 4 ? 5 : nr > dev->rlen ? 5 : nr; 1353 DEBUGP(4, dev, "dev->rlen = %i, dev->rpos = %i, nr = %i\n", 1354 dev->rlen, dev->rpos, nr); 1355 1356release_io: 1357 DEBUGP(4, dev, "Reset SM\n"); 1358 xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */ 1359 1360 if (rc < 0) { 1361 DEBUGP(4, dev, "Write failed but clear T_Active\n"); 1362 dev->flags1 &= 0xdf; 1363 xoutb(dev->flags1, REG_FLAGS1(iobase)); 1364 } 1365 1366 clear_bit(LOCK_IO, &dev->flags); 1367 wake_up_interruptible(&dev->ioq); 1368 wake_up_interruptible(&dev->readq); /* tell read we have data */ 1369 1370 /* ITSEC E2: clear write buffer */ 1371 memset((char *)dev->sbuf, 0, 512); 1372 1373 /* return error or actually written bytes */ 1374 DEBUGP(2, dev, "<- cmm_write\n"); 1375 return rc < 0 ? rc : nr; 1376} 1377 1378static void start_monitor(struct cm4000_dev *dev) 1379{ 1380 DEBUGP(3, dev, "-> start_monitor\n"); 1381 if (!dev->monitor_running) { 1382 DEBUGP(5, dev, "create, init and add timer\n"); 1383 timer_setup(&dev->timer, monitor_card, 0); 1384 dev->monitor_running = 1; 1385 mod_timer(&dev->timer, jiffies); 1386 } else 1387 DEBUGP(5, dev, "monitor already running\n"); 1388 DEBUGP(3, dev, "<- start_monitor\n"); 1389} 1390 1391static void stop_monitor(struct cm4000_dev *dev) 1392{ 1393 DEBUGP(3, dev, "-> stop_monitor\n"); 1394 if (dev->monitor_running) { 1395 DEBUGP(5, dev, "stopping monitor\n"); 1396 terminate_monitor(dev); 1397 /* reset monitor SM */ 1398 clear_bit(IS_ATR_VALID, &dev->flags); 1399 clear_bit(IS_ATR_PRESENT, &dev->flags); 1400 } else 1401 DEBUGP(5, dev, "monitor already stopped\n"); 1402 DEBUGP(3, dev, "<- stop_monitor\n"); 1403} 1404 1405static long cmm_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) 1406{ 1407 struct cm4000_dev *dev = filp->private_data; 1408 unsigned int iobase = dev->p_dev->resource[0]->start; 1409 struct inode *inode = file_inode(filp); 1410 struct pcmcia_device *link; 1411 int rc; 1412 void __user *argp = (void __user *)arg; 1413#ifdef CM4000_DEBUG 1414 char *ioctl_names[CM_IOC_MAXNR + 1] = { 1415 [_IOC_NR(CM_IOCGSTATUS)] "CM_IOCGSTATUS", 1416 [_IOC_NR(CM_IOCGATR)] "CM_IOCGATR", 1417 [_IOC_NR(CM_IOCARDOFF)] "CM_IOCARDOFF", 1418 [_IOC_NR(CM_IOCSPTS)] "CM_IOCSPTS", 1419 [_IOC_NR(CM_IOSDBGLVL)] "CM4000_DBGLVL", 1420 }; 1421 DEBUGP(3, dev, "cmm_ioctl(device=%d.%d) %s\n", imajor(inode), 1422 iminor(inode), ioctl_names[_IOC_NR(cmd)]); 1423#endif 1424 1425 mutex_lock(&cmm_mutex); 1426 rc = -ENODEV; 1427 link = dev_table[iminor(inode)]; 1428 if (!pcmcia_dev_present(link)) { 1429 DEBUGP(4, dev, "DEV_OK false\n"); 1430 goto out; 1431 } 1432 1433 if (test_bit(IS_CMM_ABSENT, &dev->flags)) { 1434 DEBUGP(4, dev, "CMM_ABSENT flag set\n"); 1435 goto out; 1436 } 1437 rc = -EINVAL; 1438 1439 if (_IOC_TYPE(cmd) != CM_IOC_MAGIC) { 1440 DEBUGP(4, dev, "ioctype mismatch\n"); 1441 goto out; 1442 } 1443 if (_IOC_NR(cmd) > CM_IOC_MAXNR) { 1444 DEBUGP(4, dev, "iocnr mismatch\n"); 1445 goto out; 1446 } 1447 rc = 0; 1448 1449 switch (cmd) { 1450 case CM_IOCGSTATUS: 1451 DEBUGP(4, dev, " ... in CM_IOCGSTATUS\n"); 1452 { 1453 int status; 1454 1455 /* clear other bits, but leave inserted & powered as 1456 * they are */ 1457 status = dev->flags0 & 3; 1458 if (test_bit(IS_ATR_PRESENT, &dev->flags)) 1459 status |= CM_ATR_PRESENT; 1460 if (test_bit(IS_ATR_VALID, &dev->flags)) 1461 status |= CM_ATR_VALID; 1462 if (test_bit(IS_CMM_ABSENT, &dev->flags)) 1463 status |= CM_NO_READER; 1464 if (test_bit(IS_BAD_CARD, &dev->flags)) 1465 status |= CM_BAD_CARD; 1466 if (copy_to_user(argp, &status, sizeof(int))) 1467 rc = -EFAULT; 1468 } 1469 break; 1470 case CM_IOCGATR: 1471 DEBUGP(4, dev, "... in CM_IOCGATR\n"); 1472 { 1473 struct atreq __user *atreq = argp; 1474 int tmp; 1475 /* allow nonblocking io and being interrupted */ 1476 if (wait_event_interruptible 1477 (dev->atrq, 1478 ((filp->f_flags & O_NONBLOCK) 1479 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) 1480 != 0)))) { 1481 if (filp->f_flags & O_NONBLOCK) 1482 rc = -EAGAIN; 1483 else 1484 rc = -ERESTARTSYS; 1485 break; 1486 } 1487 1488 rc = -EFAULT; 1489 if (test_bit(IS_ATR_VALID, &dev->flags) == 0) { 1490 tmp = -1; 1491 if (copy_to_user(&(atreq->atr_len), &tmp, 1492 sizeof(int))) 1493 break; 1494 } else { 1495 if (copy_to_user(atreq->atr, dev->atr, 1496 dev->atr_len)) 1497 break; 1498 1499 tmp = dev->atr_len; 1500 if (copy_to_user(&(atreq->atr_len), &tmp, sizeof(int))) 1501 break; 1502 } 1503 rc = 0; 1504 break; 1505 } 1506 case CM_IOCARDOFF: 1507 1508#ifdef CM4000_DEBUG 1509 DEBUGP(4, dev, "... in CM_IOCARDOFF\n"); 1510 if (dev->flags0 & 0x01) { 1511 DEBUGP(4, dev, " Card inserted\n"); 1512 } else { 1513 DEBUGP(2, dev, " No card inserted\n"); 1514 } 1515 if (dev->flags0 & 0x02) { 1516 DEBUGP(4, dev, " Card powered\n"); 1517 } else { 1518 DEBUGP(2, dev, " Card not powered\n"); 1519 } 1520#endif 1521 1522 /* is a card inserted and powered? */ 1523 if ((dev->flags0 & 0x01) && (dev->flags0 & 0x02)) { 1524 1525 /* get IO lock */ 1526 if (wait_event_interruptible 1527 (dev->ioq, 1528 ((filp->f_flags & O_NONBLOCK) 1529 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) 1530 == 0)))) { 1531 if (filp->f_flags & O_NONBLOCK) 1532 rc = -EAGAIN; 1533 else 1534 rc = -ERESTARTSYS; 1535 break; 1536 } 1537 /* Set Flags0 = 0x42 */ 1538 DEBUGP(4, dev, "Set Flags0=0x42 \n"); 1539 xoutb(0x42, REG_FLAGS0(iobase)); 1540 clear_bit(IS_ATR_PRESENT, &dev->flags); 1541 clear_bit(IS_ATR_VALID, &dev->flags); 1542 dev->mstate = M_CARDOFF; 1543 clear_bit(LOCK_IO, &dev->flags); 1544 if (wait_event_interruptible 1545 (dev->atrq, 1546 ((filp->f_flags & O_NONBLOCK) 1547 || (test_bit(IS_ATR_VALID, (void *)&dev->flags) != 1548 0)))) { 1549 if (filp->f_flags & O_NONBLOCK) 1550 rc = -EAGAIN; 1551 else 1552 rc = -ERESTARTSYS; 1553 break; 1554 } 1555 } 1556 /* release lock */ 1557 clear_bit(LOCK_IO, &dev->flags); 1558 wake_up_interruptible(&dev->ioq); 1559 1560 rc = 0; 1561 break; 1562 case CM_IOCSPTS: 1563 { 1564 struct ptsreq krnptsreq; 1565 1566 if (copy_from_user(&krnptsreq, argp, 1567 sizeof(struct ptsreq))) { 1568 rc = -EFAULT; 1569 break; 1570 } 1571 1572 rc = 0; 1573 DEBUGP(4, dev, "... in CM_IOCSPTS\n"); 1574 /* wait for ATR to get valid */ 1575 if (wait_event_interruptible 1576 (dev->atrq, 1577 ((filp->f_flags & O_NONBLOCK) 1578 || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) 1579 != 0)))) { 1580 if (filp->f_flags & O_NONBLOCK) 1581 rc = -EAGAIN; 1582 else 1583 rc = -ERESTARTSYS; 1584 break; 1585 } 1586 /* get IO lock */ 1587 if (wait_event_interruptible 1588 (dev->ioq, 1589 ((filp->f_flags & O_NONBLOCK) 1590 || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) 1591 == 0)))) { 1592 if (filp->f_flags & O_NONBLOCK) 1593 rc = -EAGAIN; 1594 else 1595 rc = -ERESTARTSYS; 1596 break; 1597 } 1598 1599 if ((rc = set_protocol(dev, &krnptsreq)) != 0) { 1600 /* auto power_on again */ 1601 dev->mstate = M_FETCH_ATR; 1602 clear_bit(IS_ATR_VALID, &dev->flags); 1603 } 1604 /* release lock */ 1605 clear_bit(LOCK_IO, &dev->flags); 1606 wake_up_interruptible(&dev->ioq); 1607 1608 } 1609 break; 1610#ifdef CM4000_DEBUG 1611 case CM_IOSDBGLVL: 1612 rc = -ENOTTY; 1613 break; 1614#endif 1615 default: 1616 DEBUGP(4, dev, "... in default (unknown IOCTL code)\n"); 1617 rc = -ENOTTY; 1618 } 1619out: 1620 mutex_unlock(&cmm_mutex); 1621 return rc; 1622} 1623 1624static int cmm_open(struct inode *inode, struct file *filp) 1625{ 1626 struct cm4000_dev *dev; 1627 struct pcmcia_device *link; 1628 int minor = iminor(inode); 1629 int ret; 1630 1631 if (minor >= CM4000_MAX_DEV) 1632 return -ENODEV; 1633 1634 mutex_lock(&cmm_mutex); 1635 link = dev_table[minor]; 1636 if (link == NULL || !pcmcia_dev_present(link)) { 1637 ret = -ENODEV; 1638 goto out; 1639 } 1640 1641 if (link->open) { 1642 ret = -EBUSY; 1643 goto out; 1644 } 1645 1646 dev = link->priv; 1647 filp->private_data = dev; 1648 1649 DEBUGP(2, dev, "-> cmm_open(device=%d.%d process=%s,%d)\n", 1650 imajor(inode), minor, current->comm, current->pid); 1651 1652 /* init device variables, they may be "polluted" after close 1653 * or, the device may never have been closed (i.e. open failed) 1654 */ 1655 1656 ZERO_DEV(dev); 1657 1658 /* opening will always block since the 1659 * monitor will be started by open, which 1660 * means we have to wait for ATR becoming 1661 * valid = block until valid (or card 1662 * inserted) 1663 */ 1664 if (filp->f_flags & O_NONBLOCK) { 1665 ret = -EAGAIN; 1666 goto out; 1667 } 1668 1669 dev->mdelay = T_50MSEC; 1670 1671 /* start monitoring the cardstatus */ 1672 start_monitor(dev); 1673 1674 link->open = 1; /* only one open per device */ 1675 1676 DEBUGP(2, dev, "<- cmm_open\n"); 1677 ret = stream_open(inode, filp); 1678out: 1679 mutex_unlock(&cmm_mutex); 1680 return ret; 1681} 1682 1683static int cmm_close(struct inode *inode, struct file *filp) 1684{ 1685 struct cm4000_dev *dev; 1686 struct pcmcia_device *link; 1687 int minor = iminor(inode); 1688 1689 if (minor >= CM4000_MAX_DEV) 1690 return -ENODEV; 1691 1692 link = dev_table[minor]; 1693 if (link == NULL) 1694 return -ENODEV; 1695 1696 dev = link->priv; 1697 1698 DEBUGP(2, dev, "-> cmm_close(maj/min=%d.%d)\n", 1699 imajor(inode), minor); 1700 1701 stop_monitor(dev); 1702 1703 ZERO_DEV(dev); 1704 1705 link->open = 0; /* only one open per device */ 1706 wake_up(&dev->devq); /* socket removed? */ 1707 1708 DEBUGP(2, dev, "cmm_close\n"); 1709 return 0; 1710} 1711 1712static void cmm_cm4000_release(struct pcmcia_device * link) 1713{ 1714 struct cm4000_dev *dev = link->priv; 1715 1716 /* dont terminate the monitor, rather rely on 1717 * close doing that for us. 1718 */ 1719 DEBUGP(3, dev, "-> cmm_cm4000_release\n"); 1720 while (link->open) { 1721 printk(KERN_INFO MODULE_NAME ": delaying release until " 1722 "process has terminated\n"); 1723 /* note: don't interrupt us: 1724 * close the applications which own 1725 * the devices _first_ ! 1726 */ 1727 wait_event(dev->devq, (link->open == 0)); 1728 } 1729 /* dev->devq=NULL; this cannot be zeroed earlier */ 1730 DEBUGP(3, dev, "<- cmm_cm4000_release\n"); 1731 return; 1732} 1733 1734/*==== Interface to PCMCIA Layer =======================================*/ 1735 1736static int cm4000_config_check(struct pcmcia_device *p_dev, void *priv_data) 1737{ 1738 return pcmcia_request_io(p_dev); 1739} 1740 1741static int cm4000_config(struct pcmcia_device * link, int devno) 1742{ 1743 link->config_flags |= CONF_AUTO_SET_IO; 1744 1745 /* read the config-tuples */ 1746 if (pcmcia_loop_config(link, cm4000_config_check, NULL)) 1747 goto cs_release; 1748 1749 if (pcmcia_enable_device(link)) 1750 goto cs_release; 1751 1752 return 0; 1753 1754cs_release: 1755 cm4000_release(link); 1756 return -ENODEV; 1757} 1758 1759static int cm4000_suspend(struct pcmcia_device *link) 1760{ 1761 struct cm4000_dev *dev; 1762 1763 dev = link->priv; 1764 stop_monitor(dev); 1765 1766 return 0; 1767} 1768 1769static int cm4000_resume(struct pcmcia_device *link) 1770{ 1771 struct cm4000_dev *dev; 1772 1773 dev = link->priv; 1774 if (link->open) 1775 start_monitor(dev); 1776 1777 return 0; 1778} 1779 1780static void cm4000_release(struct pcmcia_device *link) 1781{ 1782 cmm_cm4000_release(link); /* delay release until device closed */ 1783 pcmcia_disable_device(link); 1784} 1785 1786static int cm4000_probe(struct pcmcia_device *link) 1787{ 1788 struct cm4000_dev *dev; 1789 int i, ret; 1790 1791 for (i = 0; i < CM4000_MAX_DEV; i++) 1792 if (dev_table[i] == NULL) 1793 break; 1794 1795 if (i == CM4000_MAX_DEV) { 1796 printk(KERN_NOTICE MODULE_NAME ": all devices in use\n"); 1797 return -ENODEV; 1798 } 1799 1800 /* create a new cm4000_cs device */ 1801 dev = kzalloc(sizeof(struct cm4000_dev), GFP_KERNEL); 1802 if (dev == NULL) 1803 return -ENOMEM; 1804 1805 dev->p_dev = link; 1806 link->priv = dev; 1807 dev_table[i] = link; 1808 1809 init_waitqueue_head(&dev->devq); 1810 init_waitqueue_head(&dev->ioq); 1811 init_waitqueue_head(&dev->atrq); 1812 init_waitqueue_head(&dev->readq); 1813 1814 ret = cm4000_config(link, i); 1815 if (ret) { 1816 dev_table[i] = NULL; 1817 kfree(dev); 1818 return ret; 1819 } 1820 1821 device_create(cmm_class, NULL, MKDEV(major, i), NULL, "cmm%d", i); 1822 1823 return 0; 1824} 1825 1826static void cm4000_detach(struct pcmcia_device *link) 1827{ 1828 struct cm4000_dev *dev = link->priv; 1829 int devno; 1830 1831 /* find device */ 1832 for (devno = 0; devno < CM4000_MAX_DEV; devno++) 1833 if (dev_table[devno] == link) 1834 break; 1835 if (devno == CM4000_MAX_DEV) 1836 return; 1837 1838 stop_monitor(dev); 1839 1840 cm4000_release(link); 1841 1842 dev_table[devno] = NULL; 1843 kfree(dev); 1844 1845 device_destroy(cmm_class, MKDEV(major, devno)); 1846 1847 return; 1848} 1849 1850static const struct file_operations cm4000_fops = { 1851 .owner = THIS_MODULE, 1852 .read = cmm_read, 1853 .write = cmm_write, 1854 .unlocked_ioctl = cmm_ioctl, 1855 .open = cmm_open, 1856 .release= cmm_close, 1857 .llseek = no_llseek, 1858}; 1859 1860static const struct pcmcia_device_id cm4000_ids[] = { 1861 PCMCIA_DEVICE_MANF_CARD(0x0223, 0x0002), 1862 PCMCIA_DEVICE_PROD_ID12("CardMan", "4000", 0x2FB368CA, 0xA2BD8C39), 1863 PCMCIA_DEVICE_NULL, 1864}; 1865MODULE_DEVICE_TABLE(pcmcia, cm4000_ids); 1866 1867static struct pcmcia_driver cm4000_driver = { 1868 .owner = THIS_MODULE, 1869 .name = "cm4000_cs", 1870 .probe = cm4000_probe, 1871 .remove = cm4000_detach, 1872 .suspend = cm4000_suspend, 1873 .resume = cm4000_resume, 1874 .id_table = cm4000_ids, 1875}; 1876 1877static int __init cmm_init(void) 1878{ 1879 int rc; 1880 1881 cmm_class = class_create(THIS_MODULE, "cardman_4000"); 1882 if (IS_ERR(cmm_class)) 1883 return PTR_ERR(cmm_class); 1884 1885 major = register_chrdev(0, DEVICE_NAME, &cm4000_fops); 1886 if (major < 0) { 1887 printk(KERN_WARNING MODULE_NAME 1888 ": could not get major number\n"); 1889 class_destroy(cmm_class); 1890 return major; 1891 } 1892 1893 rc = pcmcia_register_driver(&cm4000_driver); 1894 if (rc < 0) { 1895 unregister_chrdev(major, DEVICE_NAME); 1896 class_destroy(cmm_class); 1897 return rc; 1898 } 1899 1900 return 0; 1901} 1902 1903static void __exit cmm_exit(void) 1904{ 1905 pcmcia_unregister_driver(&cm4000_driver); 1906 unregister_chrdev(major, DEVICE_NAME); 1907 class_destroy(cmm_class); 1908}; 1909 1910module_init(cmm_init); 1911module_exit(cmm_exit); 1912MODULE_LICENSE("Dual BSD/GPL"); 1913