Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 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 | * |
Harald Welte | 67bc620 | 2006-02-14 09:21:26 +0100 | [diff] [blame] | 16 | * (C) 2005-2006 Harald Welte <laforge@gnumonks.org> |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 17 | * - Adhere to Kernel CodingStyle |
| 18 | * - Port to 2.6.13 "new" style PCMCIA |
| 19 | * - Check for copy_{from,to}_user return values |
| 20 | * - Use nonseekable_open() |
Harald Welte | 67bc620 | 2006-02-14 09:21:26 +0100 | [diff] [blame] | 21 | * - add class interface for udev device creation |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 22 | * |
| 23 | * All rights reserved. Licensed under dual BSD/GPL license. |
| 24 | */ |
| 25 | |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 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> |
Akinobu Mita | 884c3d7 | 2007-05-09 02:33:32 -0700 | [diff] [blame] | 32 | #include <linux/bitrev.h> |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 33 | #include <linux/smp_lock.h> |
| 34 | #include <linux/uaccess.h> |
| 35 | #include <linux/io.h> |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 36 | |
| 37 | #include <pcmcia/cs_types.h> |
| 38 | #include <pcmcia/cs.h> |
| 39 | #include <pcmcia/cistpl.h> |
| 40 | #include <pcmcia/cisreg.h> |
| 41 | #include <pcmcia/ciscode.h> |
| 42 | #include <pcmcia/ds.h> |
| 43 | |
| 44 | #include <linux/cm4000_cs.h> |
| 45 | |
| 46 | /* #define ATR_CSUM */ |
| 47 | |
Pascal Terjan | ddd7361 | 2007-11-14 16:58:39 -0800 | [diff] [blame] | 48 | #define reader_to_dev(x) (&handle_to_dev(x->p_dev)) |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame^] | 49 | |
| 50 | /* n (debug level) is ignored */ |
| 51 | /* additional debug output may be enabled by re-compiling with |
| 52 | * CM4000_DEBUG set */ |
| 53 | /* #define CM4000_DEBUG */ |
| 54 | #define DEBUGP(n, rdr, x, args...) do { \ |
| 55 | dev_dbg(reader_to_dev(rdr), "%s:" x, \ |
| 56 | __func__ , ## args); \ |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 57 | } while (0) |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame^] | 58 | |
Harald Welte | 67bc620 | 2006-02-14 09:21:26 +0100 | [diff] [blame] | 59 | static char *version = "cm4000_cs.c v2.4.0gm6 - All bugs added by Harald Welte"; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 60 | |
| 61 | #define T_1SEC (HZ) |
| 62 | #define T_10MSEC msecs_to_jiffies(10) |
| 63 | #define T_20MSEC msecs_to_jiffies(20) |
| 64 | #define T_40MSEC msecs_to_jiffies(40) |
| 65 | #define T_50MSEC msecs_to_jiffies(50) |
| 66 | #define T_100MSEC msecs_to_jiffies(100) |
| 67 | #define T_500MSEC msecs_to_jiffies(500) |
| 68 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 69 | static void cm4000_release(struct pcmcia_device *link); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 70 | |
| 71 | static int major; /* major number we get from the kernel */ |
| 72 | |
| 73 | /* note: the first state has to have number 0 always */ |
| 74 | |
| 75 | #define M_FETCH_ATR 0 |
| 76 | #define M_TIMEOUT_WAIT 1 |
| 77 | #define M_READ_ATR_LEN 2 |
| 78 | #define M_READ_ATR 3 |
| 79 | #define M_ATR_PRESENT 4 |
| 80 | #define M_BAD_CARD 5 |
| 81 | #define M_CARDOFF 6 |
| 82 | |
| 83 | #define LOCK_IO 0 |
| 84 | #define LOCK_MONITOR 1 |
| 85 | |
| 86 | #define IS_AUTOPPS_ACT 6 |
| 87 | #define IS_PROCBYTE_PRESENT 7 |
| 88 | #define IS_INVREV 8 |
| 89 | #define IS_ANY_T0 9 |
| 90 | #define IS_ANY_T1 10 |
| 91 | #define IS_ATR_PRESENT 11 |
| 92 | #define IS_ATR_VALID 12 |
| 93 | #define IS_CMM_ABSENT 13 |
| 94 | #define IS_BAD_LENGTH 14 |
| 95 | #define IS_BAD_CSUM 15 |
| 96 | #define IS_BAD_CARD 16 |
| 97 | |
| 98 | #define REG_FLAGS0(x) (x + 0) |
| 99 | #define REG_FLAGS1(x) (x + 1) |
| 100 | #define REG_NUM_BYTES(x) (x + 2) |
| 101 | #define REG_BUF_ADDR(x) (x + 3) |
| 102 | #define REG_BUF_DATA(x) (x + 4) |
| 103 | #define REG_NUM_SEND(x) (x + 5) |
| 104 | #define REG_BAUDRATE(x) (x + 6) |
| 105 | #define REG_STOPBITS(x) (x + 7) |
| 106 | |
| 107 | struct cm4000_dev { |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 108 | struct pcmcia_device *p_dev; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 109 | dev_node_t node; /* OS node (major,minor) */ |
| 110 | |
| 111 | unsigned char atr[MAX_ATR]; |
| 112 | unsigned char rbuf[512]; |
| 113 | unsigned char sbuf[512]; |
| 114 | |
| 115 | wait_queue_head_t devq; /* when removing cardman must not be |
| 116 | zeroed! */ |
| 117 | |
| 118 | wait_queue_head_t ioq; /* if IO is locked, wait on this Q */ |
| 119 | wait_queue_head_t atrq; /* wait for ATR valid */ |
| 120 | wait_queue_head_t readq; /* used by write to wake blk.read */ |
| 121 | |
| 122 | /* warning: do not move this fields. |
| 123 | * initialising to zero depends on it - see ZERO_DEV below. */ |
| 124 | unsigned char atr_csum; |
| 125 | unsigned char atr_len_retry; |
| 126 | unsigned short atr_len; |
| 127 | unsigned short rlen; /* bytes avail. after write */ |
| 128 | unsigned short rpos; /* latest read pos. write zeroes */ |
| 129 | unsigned char procbyte; /* T=0 procedure byte */ |
| 130 | unsigned char mstate; /* state of card monitor */ |
| 131 | unsigned char cwarn; /* slow down warning */ |
| 132 | unsigned char flags0; /* cardman IO-flags 0 */ |
| 133 | unsigned char flags1; /* cardman IO-flags 1 */ |
| 134 | unsigned int mdelay; /* variable monitor speeds, in jiffies */ |
| 135 | |
| 136 | unsigned int baudv; /* baud value for speed */ |
| 137 | unsigned char ta1; |
| 138 | unsigned char proto; /* T=0, T=1, ... */ |
| 139 | unsigned long flags; /* lock+flags (MONITOR,IO,ATR) * for concurrent |
| 140 | access */ |
| 141 | |
| 142 | unsigned char pts[4]; |
| 143 | |
| 144 | struct timer_list timer; /* used to keep monitor running */ |
| 145 | int monitor_running; |
| 146 | }; |
| 147 | |
| 148 | #define ZERO_DEV(dev) \ |
| 149 | memset(&dev->atr_csum,0, \ |
| 150 | sizeof(struct cm4000_dev) - \ |
Al Viro | a2bcce8 | 2006-06-15 12:26:55 +0100 | [diff] [blame] | 151 | offsetof(struct cm4000_dev, atr_csum)) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 152 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 153 | static struct pcmcia_device *dev_table[CM4000_MAX_DEV]; |
Harald Welte | 67bc620 | 2006-02-14 09:21:26 +0100 | [diff] [blame] | 154 | static struct class *cmm_class; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 155 | |
| 156 | /* This table doesn't use spaces after the comma between fields and thus |
| 157 | * violates CodingStyle. However, I don't really think wrapping it around will |
| 158 | * make it any clearer to read -HW */ |
| 159 | static unsigned char fi_di_table[10][14] = { |
| 160 | /*FI 00 01 02 03 04 05 06 07 08 09 10 11 12 13 */ |
| 161 | /*DI */ |
| 162 | /* 0 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11}, |
| 163 | /* 1 */ {0x01,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x91,0x11,0x11,0x11,0x11}, |
| 164 | /* 2 */ {0x02,0x12,0x22,0x32,0x11,0x11,0x11,0x11,0x11,0x92,0xA2,0xB2,0x11,0x11}, |
| 165 | /* 3 */ {0x03,0x13,0x23,0x33,0x43,0x53,0x63,0x11,0x11,0x93,0xA3,0xB3,0xC3,0xD3}, |
| 166 | /* 4 */ {0x04,0x14,0x24,0x34,0x44,0x54,0x64,0x11,0x11,0x94,0xA4,0xB4,0xC4,0xD4}, |
| 167 | /* 5 */ {0x00,0x15,0x25,0x35,0x45,0x55,0x65,0x11,0x11,0x95,0xA5,0xB5,0xC5,0xD5}, |
| 168 | /* 6 */ {0x06,0x16,0x26,0x36,0x46,0x56,0x66,0x11,0x11,0x96,0xA6,0xB6,0xC6,0xD6}, |
| 169 | /* 7 */ {0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11}, |
| 170 | /* 8 */ {0x08,0x11,0x28,0x38,0x48,0x58,0x68,0x11,0x11,0x98,0xA8,0xB8,0xC8,0xD8}, |
| 171 | /* 9 */ {0x09,0x19,0x29,0x39,0x49,0x59,0x69,0x11,0x11,0x99,0xA9,0xB9,0xC9,0xD9} |
| 172 | }; |
| 173 | |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame^] | 174 | #ifndef CM4000_DEBUG |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 175 | #define xoutb outb |
| 176 | #define xinb inb |
| 177 | #else |
| 178 | static inline void xoutb(unsigned char val, unsigned short port) |
| 179 | { |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame^] | 180 | pr_debug("outb(val=%.2x,port=%.4x)\n", val, port); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 181 | outb(val, port); |
| 182 | } |
| 183 | static inline unsigned char xinb(unsigned short port) |
| 184 | { |
| 185 | unsigned char val; |
| 186 | |
| 187 | val = inb(port); |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame^] | 188 | pr_debug("%.2x=inb(%.4x)\n", val, port); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 189 | |
| 190 | return val; |
| 191 | } |
| 192 | #endif |
| 193 | |
Akinobu Mita | 884c3d7 | 2007-05-09 02:33:32 -0700 | [diff] [blame] | 194 | static inline unsigned char invert_revert(unsigned char ch) |
| 195 | { |
| 196 | return bitrev8(~ch); |
| 197 | } |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 198 | |
| 199 | static void str_invert_revert(unsigned char *b, int len) |
| 200 | { |
| 201 | int i; |
| 202 | |
| 203 | for (i = 0; i < len; i++) |
Akinobu Mita | 884c3d7 | 2007-05-09 02:33:32 -0700 | [diff] [blame] | 204 | b[i] = invert_revert(b[i]); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 205 | } |
| 206 | |
| 207 | #define ATRLENCK(dev,pos) \ |
| 208 | if (pos>=dev->atr_len || pos>=MAX_ATR) \ |
| 209 | goto return_0; |
| 210 | |
| 211 | static unsigned int calc_baudv(unsigned char fidi) |
| 212 | { |
| 213 | unsigned int wcrcf, wbrcf, fi_rfu, di_rfu; |
| 214 | |
| 215 | fi_rfu = 372; |
| 216 | di_rfu = 1; |
| 217 | |
| 218 | /* FI */ |
| 219 | switch ((fidi >> 4) & 0x0F) { |
| 220 | case 0x00: |
| 221 | wcrcf = 372; |
| 222 | break; |
| 223 | case 0x01: |
| 224 | wcrcf = 372; |
| 225 | break; |
| 226 | case 0x02: |
| 227 | wcrcf = 558; |
| 228 | break; |
| 229 | case 0x03: |
| 230 | wcrcf = 744; |
| 231 | break; |
| 232 | case 0x04: |
| 233 | wcrcf = 1116; |
| 234 | break; |
| 235 | case 0x05: |
| 236 | wcrcf = 1488; |
| 237 | break; |
| 238 | case 0x06: |
| 239 | wcrcf = 1860; |
| 240 | break; |
| 241 | case 0x07: |
| 242 | wcrcf = fi_rfu; |
| 243 | break; |
| 244 | case 0x08: |
| 245 | wcrcf = fi_rfu; |
| 246 | break; |
| 247 | case 0x09: |
| 248 | wcrcf = 512; |
| 249 | break; |
| 250 | case 0x0A: |
| 251 | wcrcf = 768; |
| 252 | break; |
| 253 | case 0x0B: |
| 254 | wcrcf = 1024; |
| 255 | break; |
| 256 | case 0x0C: |
| 257 | wcrcf = 1536; |
| 258 | break; |
| 259 | case 0x0D: |
| 260 | wcrcf = 2048; |
| 261 | break; |
| 262 | default: |
| 263 | wcrcf = fi_rfu; |
| 264 | break; |
| 265 | } |
| 266 | |
| 267 | /* DI */ |
| 268 | switch (fidi & 0x0F) { |
| 269 | case 0x00: |
| 270 | wbrcf = di_rfu; |
| 271 | break; |
| 272 | case 0x01: |
| 273 | wbrcf = 1; |
| 274 | break; |
| 275 | case 0x02: |
| 276 | wbrcf = 2; |
| 277 | break; |
| 278 | case 0x03: |
| 279 | wbrcf = 4; |
| 280 | break; |
| 281 | case 0x04: |
| 282 | wbrcf = 8; |
| 283 | break; |
| 284 | case 0x05: |
| 285 | wbrcf = 16; |
| 286 | break; |
| 287 | case 0x06: |
| 288 | wbrcf = 32; |
| 289 | break; |
| 290 | case 0x07: |
| 291 | wbrcf = di_rfu; |
| 292 | break; |
| 293 | case 0x08: |
| 294 | wbrcf = 12; |
| 295 | break; |
| 296 | case 0x09: |
| 297 | wbrcf = 20; |
| 298 | break; |
| 299 | default: |
| 300 | wbrcf = di_rfu; |
| 301 | break; |
| 302 | } |
| 303 | |
| 304 | return (wcrcf / wbrcf); |
| 305 | } |
| 306 | |
Olof Johansson | ecb8a84 | 2008-02-04 22:27:34 -0800 | [diff] [blame] | 307 | static unsigned short io_read_num_rec_bytes(unsigned int iobase, |
| 308 | unsigned short *s) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 309 | { |
| 310 | unsigned short tmp; |
| 311 | |
| 312 | tmp = *s = 0; |
| 313 | do { |
| 314 | *s = tmp; |
| 315 | tmp = inb(REG_NUM_BYTES(iobase)) | |
| 316 | (inb(REG_FLAGS0(iobase)) & 4 ? 0x100 : 0); |
| 317 | } while (tmp != *s); |
| 318 | |
| 319 | return *s; |
| 320 | } |
| 321 | |
| 322 | static int parse_atr(struct cm4000_dev *dev) |
| 323 | { |
| 324 | unsigned char any_t1, any_t0; |
| 325 | unsigned char ch, ifno; |
| 326 | int ix, done; |
| 327 | |
| 328 | DEBUGP(3, dev, "-> parse_atr: dev->atr_len = %i\n", dev->atr_len); |
| 329 | |
| 330 | if (dev->atr_len < 3) { |
| 331 | DEBUGP(5, dev, "parse_atr: atr_len < 3\n"); |
| 332 | return 0; |
| 333 | } |
| 334 | |
| 335 | if (dev->atr[0] == 0x3f) |
| 336 | set_bit(IS_INVREV, &dev->flags); |
| 337 | else |
| 338 | clear_bit(IS_INVREV, &dev->flags); |
| 339 | ix = 1; |
| 340 | ifno = 1; |
| 341 | ch = dev->atr[1]; |
| 342 | dev->proto = 0; /* XXX PROTO */ |
| 343 | any_t1 = any_t0 = done = 0; |
| 344 | dev->ta1 = 0x11; /* defaults to 9600 baud */ |
| 345 | do { |
| 346 | if (ifno == 1 && (ch & 0x10)) { |
| 347 | /* read first interface byte and TA1 is present */ |
| 348 | dev->ta1 = dev->atr[2]; |
| 349 | DEBUGP(5, dev, "Card says FiDi is 0x%.2x\n", dev->ta1); |
| 350 | ifno++; |
| 351 | } else if ((ifno == 2) && (ch & 0x10)) { /* TA(2) */ |
| 352 | dev->ta1 = 0x11; |
| 353 | ifno++; |
| 354 | } |
| 355 | |
| 356 | DEBUGP(5, dev, "Yi=%.2x\n", ch & 0xf0); |
| 357 | ix += ((ch & 0x10) >> 4) /* no of int.face chars */ |
| 358 | +((ch & 0x20) >> 5) |
| 359 | + ((ch & 0x40) >> 6) |
| 360 | + ((ch & 0x80) >> 7); |
| 361 | /* ATRLENCK(dev,ix); */ |
| 362 | if (ch & 0x80) { /* TDi */ |
| 363 | ch = dev->atr[ix]; |
| 364 | if ((ch & 0x0f)) { |
| 365 | any_t1 = 1; |
| 366 | DEBUGP(5, dev, "card is capable of T=1\n"); |
| 367 | } else { |
| 368 | any_t0 = 1; |
| 369 | DEBUGP(5, dev, "card is capable of T=0\n"); |
| 370 | } |
| 371 | } else |
| 372 | done = 1; |
| 373 | } while (!done); |
| 374 | |
| 375 | DEBUGP(5, dev, "ix=%d noHist=%d any_t1=%d\n", |
| 376 | ix, dev->atr[1] & 15, any_t1); |
| 377 | if (ix + 1 + (dev->atr[1] & 0x0f) + any_t1 != dev->atr_len) { |
| 378 | DEBUGP(5, dev, "length error\n"); |
| 379 | return 0; |
| 380 | } |
| 381 | if (any_t0) |
| 382 | set_bit(IS_ANY_T0, &dev->flags); |
| 383 | |
| 384 | if (any_t1) { /* compute csum */ |
| 385 | dev->atr_csum = 0; |
| 386 | #ifdef ATR_CSUM |
| 387 | for (i = 1; i < dev->atr_len; i++) |
| 388 | dev->atr_csum ^= dev->atr[i]; |
| 389 | if (dev->atr_csum) { |
| 390 | set_bit(IS_BAD_CSUM, &dev->flags); |
| 391 | DEBUGP(5, dev, "bad checksum\n"); |
| 392 | goto return_0; |
| 393 | } |
| 394 | #endif |
| 395 | if (any_t0 == 0) |
| 396 | dev->proto = 1; /* XXX PROTO */ |
| 397 | set_bit(IS_ANY_T1, &dev->flags); |
| 398 | } |
| 399 | |
| 400 | return 1; |
| 401 | } |
| 402 | |
| 403 | struct card_fixup { |
| 404 | char atr[12]; |
| 405 | u_int8_t atr_len; |
| 406 | u_int8_t stopbits; |
| 407 | }; |
| 408 | |
| 409 | static struct card_fixup card_fixups[] = { |
| 410 | { /* ACOS */ |
| 411 | .atr = { 0x3b, 0xb3, 0x11, 0x00, 0x00, 0x41, 0x01 }, |
| 412 | .atr_len = 7, |
| 413 | .stopbits = 0x03, |
| 414 | }, |
| 415 | { /* Motorola */ |
| 416 | .atr = {0x3b, 0x76, 0x13, 0x00, 0x00, 0x80, 0x62, 0x07, |
| 417 | 0x41, 0x81, 0x81 }, |
| 418 | .atr_len = 11, |
| 419 | .stopbits = 0x04, |
| 420 | }, |
| 421 | }; |
| 422 | |
| 423 | static void set_cardparameter(struct cm4000_dev *dev) |
| 424 | { |
| 425 | int i; |
Olof Johansson | ecb8a84 | 2008-02-04 22:27:34 -0800 | [diff] [blame] | 426 | unsigned int iobase = dev->p_dev->io.BasePort1; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 427 | u_int8_t stopbits = 0x02; /* ISO default */ |
| 428 | |
| 429 | DEBUGP(3, dev, "-> set_cardparameter\n"); |
| 430 | |
| 431 | dev->flags1 = dev->flags1 | (((dev->baudv - 1) & 0x0100) >> 8); |
| 432 | xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| 433 | DEBUGP(5, dev, "flags1 = 0x%02x\n", dev->flags1); |
| 434 | |
| 435 | /* set baudrate */ |
| 436 | xoutb((unsigned char)((dev->baudv - 1) & 0xFF), REG_BAUDRATE(iobase)); |
| 437 | |
| 438 | DEBUGP(5, dev, "baudv = %i -> write 0x%02x\n", dev->baudv, |
| 439 | ((dev->baudv - 1) & 0xFF)); |
| 440 | |
| 441 | /* set stopbits */ |
| 442 | for (i = 0; i < ARRAY_SIZE(card_fixups); i++) { |
| 443 | if (!memcmp(dev->atr, card_fixups[i].atr, |
| 444 | card_fixups[i].atr_len)) |
| 445 | stopbits = card_fixups[i].stopbits; |
| 446 | } |
| 447 | xoutb(stopbits, REG_STOPBITS(iobase)); |
| 448 | |
| 449 | DEBUGP(3, dev, "<- set_cardparameter\n"); |
| 450 | } |
| 451 | |
| 452 | static int set_protocol(struct cm4000_dev *dev, struct ptsreq *ptsreq) |
| 453 | { |
| 454 | |
| 455 | unsigned long tmp, i; |
| 456 | unsigned short num_bytes_read; |
| 457 | unsigned char pts_reply[4]; |
| 458 | ssize_t rc; |
Olof Johansson | ecb8a84 | 2008-02-04 22:27:34 -0800 | [diff] [blame] | 459 | unsigned int iobase = dev->p_dev->io.BasePort1; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 460 | |
| 461 | rc = 0; |
| 462 | |
| 463 | DEBUGP(3, dev, "-> set_protocol\n"); |
| 464 | DEBUGP(5, dev, "ptsreq->Protocol = 0x%.8x, ptsreq->Flags=0x%.8x, " |
| 465 | "ptsreq->pts1=0x%.2x, ptsreq->pts2=0x%.2x, " |
| 466 | "ptsreq->pts3=0x%.2x\n", (unsigned int)ptsreq->protocol, |
| 467 | (unsigned int)ptsreq->flags, ptsreq->pts1, ptsreq->pts2, |
| 468 | ptsreq->pts3); |
| 469 | |
| 470 | /* Fill PTS structure */ |
| 471 | dev->pts[0] = 0xff; |
| 472 | dev->pts[1] = 0x00; |
| 473 | tmp = ptsreq->protocol; |
| 474 | while ((tmp = (tmp >> 1)) > 0) |
| 475 | dev->pts[1]++; |
| 476 | dev->proto = dev->pts[1]; /* Set new protocol */ |
| 477 | dev->pts[1] = (0x01 << 4) | (dev->pts[1]); |
| 478 | |
| 479 | /* Correct Fi/Di according to CM4000 Fi/Di table */ |
| 480 | DEBUGP(5, dev, "Ta(1) from ATR is 0x%.2x\n", dev->ta1); |
| 481 | /* set Fi/Di according to ATR TA(1) */ |
| 482 | dev->pts[2] = fi_di_table[dev->ta1 & 0x0F][(dev->ta1 >> 4) & 0x0F]; |
| 483 | |
| 484 | /* Calculate PCK character */ |
| 485 | dev->pts[3] = dev->pts[0] ^ dev->pts[1] ^ dev->pts[2]; |
| 486 | |
| 487 | DEBUGP(5, dev, "pts0=%.2x, pts1=%.2x, pts2=%.2x, pts3=%.2x\n", |
| 488 | dev->pts[0], dev->pts[1], dev->pts[2], dev->pts[3]); |
| 489 | |
| 490 | /* check card convention */ |
| 491 | if (test_bit(IS_INVREV, &dev->flags)) |
| 492 | str_invert_revert(dev->pts, 4); |
| 493 | |
| 494 | /* reset SM */ |
| 495 | xoutb(0x80, REG_FLAGS0(iobase)); |
| 496 | |
| 497 | /* Enable access to the message buffer */ |
| 498 | DEBUGP(5, dev, "Enable access to the messages buffer\n"); |
| 499 | dev->flags1 = 0x20 /* T_Active */ |
| 500 | | (test_bit(IS_INVREV, &dev->flags) ? 0x02 : 0x00) /* inv parity */ |
| 501 | | ((dev->baudv >> 8) & 0x01); /* MSB-baud */ |
| 502 | xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| 503 | |
| 504 | DEBUGP(5, dev, "Enable message buffer -> flags1 = 0x%.2x\n", |
| 505 | dev->flags1); |
| 506 | |
| 507 | /* write challenge to the buffer */ |
| 508 | DEBUGP(5, dev, "Write challenge to buffer: "); |
| 509 | for (i = 0; i < 4; i++) { |
| 510 | xoutb(i, REG_BUF_ADDR(iobase)); |
| 511 | xoutb(dev->pts[i], REG_BUF_DATA(iobase)); /* buf data */ |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame^] | 512 | #ifdef CM4000_DEBUG |
| 513 | pr_debug("0x%.2x ", dev->pts[i]); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 514 | } |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame^] | 515 | pr_debug("\n"); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 516 | #else |
| 517 | } |
| 518 | #endif |
| 519 | |
| 520 | /* set number of bytes to write */ |
| 521 | DEBUGP(5, dev, "Set number of bytes to write\n"); |
| 522 | xoutb(0x04, REG_NUM_SEND(iobase)); |
| 523 | |
| 524 | /* Trigger CARDMAN CONTROLLER */ |
| 525 | xoutb(0x50, REG_FLAGS0(iobase)); |
| 526 | |
| 527 | /* Monitor progress */ |
| 528 | /* wait for xmit done */ |
| 529 | DEBUGP(5, dev, "Waiting for NumRecBytes getting valid\n"); |
| 530 | |
| 531 | for (i = 0; i < 100; i++) { |
| 532 | if (inb(REG_FLAGS0(iobase)) & 0x08) { |
| 533 | DEBUGP(5, dev, "NumRecBytes is valid\n"); |
| 534 | break; |
| 535 | } |
| 536 | mdelay(10); |
| 537 | } |
| 538 | if (i == 100) { |
| 539 | DEBUGP(5, dev, "Timeout waiting for NumRecBytes getting " |
| 540 | "valid\n"); |
| 541 | rc = -EIO; |
| 542 | goto exit_setprotocol; |
| 543 | } |
| 544 | |
| 545 | DEBUGP(5, dev, "Reading NumRecBytes\n"); |
| 546 | for (i = 0; i < 100; i++) { |
| 547 | io_read_num_rec_bytes(iobase, &num_bytes_read); |
| 548 | if (num_bytes_read >= 4) { |
| 549 | DEBUGP(2, dev, "NumRecBytes = %i\n", num_bytes_read); |
| 550 | break; |
| 551 | } |
| 552 | mdelay(10); |
| 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 | |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame^] | 575 | #ifdef CM4000_DEBUG |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 576 | DEBUGP(2, dev, "PTSreply: "); |
| 577 | for (i = 0; i < num_bytes_read; i++) { |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame^] | 578 | pr_debug("0x%.2x ", pts_reply[i]); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 579 | } |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame^] | 580 | pr_debug("\n"); |
| 581 | #endif /* CM4000_DEBUG */ |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 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 | |
| 602 | exit_setprotocol: |
| 603 | DEBUGP(3, dev, "<- set_protocol\n"); |
| 604 | return rc; |
| 605 | } |
| 606 | |
Olof Johansson | ecb8a84 | 2008-02-04 22:27:34 -0800 | [diff] [blame] | 607 | static int io_detect_cm4000(unsigned int iobase, struct cm4000_dev *dev) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 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 | |
| 628 | static 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); |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame^] | 650 | #ifdef CM4000_DEBUG |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 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 explictely from the application: the driver |
| 662 | * is already doing that for you. |
| 663 | */ |
| 664 | |
| 665 | static void monitor_card(unsigned long p) |
| 666 | { |
| 667 | struct cm4000_dev *dev = (struct cm4000_dev *) p; |
Olof Johansson | ecb8a84 | 2008-02-04 22:27:34 -0800 | [diff] [blame] | 668 | unsigned int iobase = dev->p_dev->io.BasePort1; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 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 | unsigned char flags0; |
| 738 | case M_CARDOFF: |
| 739 | DEBUGP(4, dev, "M_CARDOFF\n"); |
| 740 | flags0 = inb(REG_FLAGS0(iobase)); |
| 741 | if (flags0 & 0x02) { |
| 742 | /* wait until Flags0 indicate power is off */ |
| 743 | dev->mdelay = T_10MSEC; |
| 744 | } else { |
| 745 | /* Flags0 indicate power off and no card inserted now; |
| 746 | * Reset CARDMAN CONTROLLER */ |
| 747 | xoutb(0x80, REG_FLAGS0(iobase)); |
| 748 | |
| 749 | /* prepare for fetching ATR again: after card off ATR |
| 750 | * is read again automatically */ |
| 751 | dev->rlen = |
| 752 | dev->rpos = |
| 753 | dev->atr_csum = |
| 754 | dev->atr_len_retry = dev->cwarn = 0; |
| 755 | dev->mstate = M_FETCH_ATR; |
| 756 | |
| 757 | /* minimal gap between CARDOFF and read ATR is 50msec */ |
| 758 | dev->mdelay = T_50MSEC; |
| 759 | } |
| 760 | break; |
| 761 | case M_FETCH_ATR: |
| 762 | DEBUGP(4, dev, "M_FETCH_ATR\n"); |
| 763 | xoutb(0x80, REG_FLAGS0(iobase)); |
| 764 | DEBUGP(4, dev, "Reset BAUDV to 9600\n"); |
| 765 | dev->baudv = 0x173; /* 9600 */ |
| 766 | xoutb(0x02, REG_STOPBITS(iobase)); /* stopbits=2 */ |
| 767 | xoutb(0x73, REG_BAUDRATE(iobase)); /* baud value */ |
| 768 | xoutb(0x21, REG_FLAGS1(iobase)); /* T_Active=1, baud |
| 769 | value */ |
| 770 | /* warm start vs. power on: */ |
| 771 | xoutb(dev->flags0 & 2 ? 0x46 : 0x44, REG_FLAGS0(iobase)); |
| 772 | dev->mdelay = T_40MSEC; |
| 773 | dev->mstate = M_TIMEOUT_WAIT; |
| 774 | break; |
| 775 | case M_TIMEOUT_WAIT: |
| 776 | DEBUGP(4, dev, "M_TIMEOUT_WAIT\n"); |
| 777 | /* numRecBytes */ |
| 778 | io_read_num_rec_bytes(iobase, &dev->atr_len); |
| 779 | dev->mdelay = T_10MSEC; |
| 780 | dev->mstate = M_READ_ATR_LEN; |
| 781 | break; |
| 782 | case M_READ_ATR_LEN: |
| 783 | DEBUGP(4, dev, "M_READ_ATR_LEN\n"); |
| 784 | /* infinite loop possible, since there is no timeout */ |
| 785 | |
| 786 | #define MAX_ATR_LEN_RETRY 100 |
| 787 | |
| 788 | if (dev->atr_len == io_read_num_rec_bytes(iobase, &s)) { |
| 789 | if (dev->atr_len_retry++ >= MAX_ATR_LEN_RETRY) { /* + XX msec */ |
| 790 | dev->mdelay = T_10MSEC; |
| 791 | dev->mstate = M_READ_ATR; |
| 792 | } |
| 793 | } else { |
| 794 | dev->atr_len = s; |
| 795 | dev->atr_len_retry = 0; /* set new timeout */ |
| 796 | } |
| 797 | |
| 798 | DEBUGP(4, dev, "Current ATR_LEN = %i\n", dev->atr_len); |
| 799 | break; |
| 800 | case M_READ_ATR: |
| 801 | DEBUGP(4, dev, "M_READ_ATR\n"); |
| 802 | xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */ |
| 803 | for (i = 0; i < dev->atr_len; i++) { |
| 804 | xoutb(i, REG_BUF_ADDR(iobase)); |
| 805 | dev->atr[i] = inb(REG_BUF_DATA(iobase)); |
| 806 | } |
| 807 | /* Deactivate T_Active flags */ |
| 808 | DEBUGP(4, dev, "Deactivate T_Active flags\n"); |
| 809 | dev->flags1 = 0x01; |
| 810 | xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| 811 | |
| 812 | /* atr is present (which doesnt mean it's valid) */ |
| 813 | set_bit(IS_ATR_PRESENT, &dev->flags); |
| 814 | if (dev->atr[0] == 0x03) |
| 815 | str_invert_revert(dev->atr, dev->atr_len); |
| 816 | atrc = parse_atr(dev); |
| 817 | if (atrc == 0) { /* atr invalid */ |
| 818 | dev->mdelay = 0; |
| 819 | dev->mstate = M_BAD_CARD; |
| 820 | } else { |
| 821 | dev->mdelay = T_50MSEC; |
| 822 | dev->mstate = M_ATR_PRESENT; |
| 823 | set_bit(IS_ATR_VALID, &dev->flags); |
| 824 | } |
| 825 | |
| 826 | if (test_bit(IS_ATR_VALID, &dev->flags) == 1) { |
| 827 | DEBUGP(4, dev, "monitor_card: ATR valid\n"); |
| 828 | /* if ta1 == 0x11, no PPS necessary (default values) */ |
| 829 | /* do not do PPS with multi protocol cards */ |
| 830 | if ((test_bit(IS_AUTOPPS_ACT, &dev->flags) == 0) && |
| 831 | (dev->ta1 != 0x11) && |
| 832 | !(test_bit(IS_ANY_T0, &dev->flags) && |
| 833 | test_bit(IS_ANY_T1, &dev->flags))) { |
| 834 | DEBUGP(4, dev, "Perform AUTOPPS\n"); |
| 835 | set_bit(IS_AUTOPPS_ACT, &dev->flags); |
| 836 | ptsreq.protocol = ptsreq.protocol = |
| 837 | (0x01 << dev->proto); |
| 838 | ptsreq.flags = 0x01; |
| 839 | ptsreq.pts1 = 0x00; |
| 840 | ptsreq.pts2 = 0x00; |
| 841 | ptsreq.pts3 = 0x00; |
| 842 | if (set_protocol(dev, &ptsreq) == 0) { |
| 843 | DEBUGP(4, dev, "AUTOPPS ret SUCC\n"); |
| 844 | clear_bit(IS_AUTOPPS_ACT, &dev->flags); |
| 845 | wake_up_interruptible(&dev->atrq); |
| 846 | } else { |
| 847 | DEBUGP(4, dev, "AUTOPPS failed: " |
| 848 | "repower using defaults\n"); |
| 849 | /* prepare for repowering */ |
| 850 | clear_bit(IS_ATR_PRESENT, &dev->flags); |
| 851 | clear_bit(IS_ATR_VALID, &dev->flags); |
| 852 | dev->rlen = |
| 853 | dev->rpos = |
| 854 | dev->atr_csum = |
| 855 | dev->atr_len_retry = dev->cwarn = 0; |
| 856 | dev->mstate = M_FETCH_ATR; |
| 857 | |
| 858 | dev->mdelay = T_50MSEC; |
| 859 | } |
| 860 | } else { |
| 861 | /* for cards which use slightly different |
| 862 | * params (extra guard time) */ |
| 863 | set_cardparameter(dev); |
| 864 | if (test_bit(IS_AUTOPPS_ACT, &dev->flags) == 1) |
| 865 | DEBUGP(4, dev, "AUTOPPS already active " |
| 866 | "2nd try:use default values\n"); |
| 867 | if (dev->ta1 == 0x11) |
| 868 | DEBUGP(4, dev, "No AUTOPPS necessary " |
| 869 | "TA(1)==0x11\n"); |
| 870 | if (test_bit(IS_ANY_T0, &dev->flags) |
| 871 | && test_bit(IS_ANY_T1, &dev->flags)) |
| 872 | DEBUGP(4, dev, "Do NOT perform AUTOPPS " |
| 873 | "with multiprotocol cards\n"); |
| 874 | clear_bit(IS_AUTOPPS_ACT, &dev->flags); |
| 875 | wake_up_interruptible(&dev->atrq); |
| 876 | } |
| 877 | } else { |
| 878 | DEBUGP(4, dev, "ATR invalid\n"); |
| 879 | wake_up_interruptible(&dev->atrq); |
| 880 | } |
| 881 | break; |
| 882 | case M_BAD_CARD: |
| 883 | DEBUGP(4, dev, "M_BAD_CARD\n"); |
| 884 | /* slow down warning, but prompt immediately after insertion */ |
| 885 | if (dev->cwarn == 0 || dev->cwarn == 10) { |
| 886 | set_bit(IS_BAD_CARD, &dev->flags); |
| 887 | printk(KERN_WARNING MODULE_NAME ": device %s: ", |
| 888 | dev->node.dev_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 | } |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame^] | 893 | #ifdef CM4000_DEBUG |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 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 | |
| 913 | release_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 | |
| 918 | return_with_timer: |
| 919 | DEBUGP(7, dev, "<- monitor_card (returns with timer)\n"); |
Jiri Slaby | 40565f1 | 2007-02-12 00:52:31 -0800 | [diff] [blame] | 920 | mod_timer(&dev->timer, jiffies + dev->mdelay); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 921 | clear_bit(LOCK_MONITOR, &dev->flags); |
| 922 | } |
| 923 | |
| 924 | /* Interface to userland (file_operations) */ |
| 925 | |
| 926 | static 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; |
Olof Johansson | ecb8a84 | 2008-02-04 22:27:34 -0800 | [diff] [blame] | 930 | unsigned int iobase = dev->p_dev->io.BasePort1; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 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 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 939 | if (!pcmcia_dev_present(dev->p_dev) || /* device removed */ |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 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 | } |
| 987 | rc = -EIO; |
| 988 | goto release_io; |
| 989 | } |
| 990 | |
| 991 | DEBUGP(4, dev, "begin read answer\n"); |
| 992 | j = min(count, (size_t)(dev->rlen - dev->rpos)); |
| 993 | k = dev->rpos; |
| 994 | if (k + j > 255) |
| 995 | j = 256 - k; |
| 996 | DEBUGP(4, dev, "read1 j=%d\n", j); |
| 997 | for (i = 0; i < j; i++) { |
| 998 | xoutb(k++, REG_BUF_ADDR(iobase)); |
| 999 | dev->rbuf[i] = xinb(REG_BUF_DATA(iobase)); |
| 1000 | } |
| 1001 | j = min(count, (size_t)(dev->rlen - dev->rpos)); |
| 1002 | if (k + j > 255) { |
| 1003 | DEBUGP(4, dev, "read2 j=%d\n", j); |
| 1004 | dev->flags1 |= 0x10; /* MSB buf addr set */ |
| 1005 | xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| 1006 | for (; i < j; i++) { |
| 1007 | xoutb(k++, REG_BUF_ADDR(iobase)); |
| 1008 | dev->rbuf[i] = xinb(REG_BUF_DATA(iobase)); |
| 1009 | } |
| 1010 | } |
| 1011 | |
Roel Kluin | 470967d | 2009-09-21 17:03:54 -0700 | [diff] [blame] | 1012 | if (dev->proto == 0 && count > dev->rlen - dev->rpos && i) { |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1013 | DEBUGP(4, dev, "T=0 and count > buffer\n"); |
| 1014 | dev->rbuf[i] = dev->rbuf[i - 1]; |
| 1015 | dev->rbuf[i - 1] = dev->procbyte; |
| 1016 | j++; |
| 1017 | } |
| 1018 | count = j; |
| 1019 | |
| 1020 | dev->rpos = dev->rlen + 1; |
| 1021 | |
| 1022 | /* Clear T1Active */ |
| 1023 | DEBUGP(4, dev, "Clear T1Active\n"); |
| 1024 | dev->flags1 &= 0xdf; |
| 1025 | xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| 1026 | |
| 1027 | xoutb(0, REG_FLAGS1(iobase)); /* clear detectCMM */ |
| 1028 | /* last check before exit */ |
| 1029 | if (!io_detect_cm4000(iobase, dev)) |
| 1030 | count = -ENODEV; |
| 1031 | |
| 1032 | if (test_bit(IS_INVREV, &dev->flags) && count > 0) |
| 1033 | str_invert_revert(dev->rbuf, count); |
| 1034 | |
| 1035 | if (copy_to_user(buf, dev->rbuf, count)) |
| 1036 | return -EFAULT; |
| 1037 | |
| 1038 | release_io: |
| 1039 | clear_bit(LOCK_IO, &dev->flags); |
| 1040 | wake_up_interruptible(&dev->ioq); |
| 1041 | |
| 1042 | DEBUGP(2, dev, "<- cmm_read returns: rc = %Zi\n", |
| 1043 | (rc < 0 ? rc : count)); |
| 1044 | return rc < 0 ? rc : count; |
| 1045 | } |
| 1046 | |
| 1047 | static ssize_t cmm_write(struct file *filp, const char __user *buf, |
| 1048 | size_t count, loff_t *ppos) |
| 1049 | { |
| 1050 | struct cm4000_dev *dev = (struct cm4000_dev *) filp->private_data; |
Olof Johansson | ecb8a84 | 2008-02-04 22:27:34 -0800 | [diff] [blame] | 1051 | unsigned int iobase = dev->p_dev->io.BasePort1; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1052 | unsigned short s; |
| 1053 | unsigned char tmp; |
| 1054 | unsigned char infolen; |
| 1055 | unsigned char sendT0; |
| 1056 | unsigned short nsend; |
| 1057 | unsigned short nr; |
| 1058 | ssize_t rc; |
| 1059 | int i; |
| 1060 | |
| 1061 | DEBUGP(2, dev, "-> cmm_write(%s,%d)\n", current->comm, current->pid); |
| 1062 | |
| 1063 | if (count == 0) /* according to manpage */ |
| 1064 | return 0; |
| 1065 | |
| 1066 | if (dev->proto == 0 && count < 4) { |
| 1067 | /* T0 must have at least 4 bytes */ |
| 1068 | DEBUGP(4, dev, "T0 short write\n"); |
| 1069 | return -EIO; |
| 1070 | } |
| 1071 | |
| 1072 | nr = count & 0x1ff; /* max bytes to write */ |
| 1073 | |
| 1074 | sendT0 = dev->proto ? 0 : nr > 5 ? 0x08 : 0; |
| 1075 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 1076 | if (!pcmcia_dev_present(dev->p_dev) || /* device removed */ |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1077 | test_bit(IS_CMM_ABSENT, &dev->flags)) |
| 1078 | return -ENODEV; |
| 1079 | |
| 1080 | if (test_bit(IS_BAD_CSUM, &dev->flags)) { |
| 1081 | DEBUGP(4, dev, "bad csum\n"); |
| 1082 | return -EIO; |
| 1083 | } |
| 1084 | |
| 1085 | /* |
| 1086 | * wait for atr to become valid. |
| 1087 | * note: it is important to lock this code. if we dont, the monitor |
Michael Opdenacker | 59c5159 | 2007-05-09 08:57:56 +0200 | [diff] [blame] | 1088 | * could be run between test_bit and the call to sleep on the |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1089 | * atr-queue. if *then* the monitor detects atr valid, it will wake up |
| 1090 | * any process on the atr-queue, *but* since we have been interrupted, |
| 1091 | * we do not yet sleep on this queue. this would result in a missed |
| 1092 | * wake_up and the calling process would sleep forever (until |
| 1093 | * interrupted). also, do *not* restore_flags before sleep_on, because |
| 1094 | * this could result in the same situation! |
| 1095 | */ |
| 1096 | if (wait_event_interruptible |
| 1097 | (dev->atrq, |
| 1098 | ((filp->f_flags & O_NONBLOCK) |
| 1099 | || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) { |
| 1100 | if (filp->f_flags & O_NONBLOCK) |
| 1101 | return -EAGAIN; |
| 1102 | return -ERESTARTSYS; |
| 1103 | } |
| 1104 | |
| 1105 | if (test_bit(IS_ATR_VALID, &dev->flags) == 0) { /* invalid atr */ |
| 1106 | DEBUGP(4, dev, "invalid ATR\n"); |
| 1107 | return -EIO; |
| 1108 | } |
| 1109 | |
| 1110 | /* lock io */ |
| 1111 | if (wait_event_interruptible |
| 1112 | (dev->ioq, |
| 1113 | ((filp->f_flags & O_NONBLOCK) |
| 1114 | || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) { |
| 1115 | if (filp->f_flags & O_NONBLOCK) |
| 1116 | return -EAGAIN; |
| 1117 | return -ERESTARTSYS; |
| 1118 | } |
| 1119 | |
| 1120 | if (copy_from_user(dev->sbuf, buf, ((count > 512) ? 512 : count))) |
| 1121 | return -EFAULT; |
| 1122 | |
| 1123 | rc = 0; |
| 1124 | dev->flags0 = inb(REG_FLAGS0(iobase)); |
| 1125 | if ((dev->flags0 & 1) == 0 /* no smartcard inserted */ |
| 1126 | || dev->flags0 == 0xff) { /* no cardman inserted */ |
| 1127 | clear_bit(IS_ATR_VALID, &dev->flags); |
| 1128 | if (dev->flags0 & 1) { |
| 1129 | set_bit(IS_CMM_ABSENT, &dev->flags); |
| 1130 | rc = -ENODEV; |
| 1131 | } else { |
| 1132 | DEBUGP(4, dev, "IO error\n"); |
| 1133 | rc = -EIO; |
| 1134 | } |
| 1135 | goto release_io; |
| 1136 | } |
| 1137 | |
| 1138 | xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */ |
| 1139 | |
| 1140 | if (!io_detect_cm4000(iobase, dev)) { |
| 1141 | rc = -ENODEV; |
| 1142 | goto release_io; |
| 1143 | } |
| 1144 | |
| 1145 | /* reflect T=0 send/read mode in flags1 */ |
| 1146 | dev->flags1 |= (sendT0); |
| 1147 | |
| 1148 | set_cardparameter(dev); |
| 1149 | |
| 1150 | /* dummy read, reset flag procedure received */ |
| 1151 | tmp = inb(REG_FLAGS1(iobase)); |
| 1152 | |
| 1153 | dev->flags1 = 0x20 /* T_Active */ |
| 1154 | | (sendT0) |
| 1155 | | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0)/* inverse parity */ |
| 1156 | | (((dev->baudv - 1) & 0x0100) >> 8); /* MSB-Baud */ |
| 1157 | DEBUGP(1, dev, "set dev->flags1 = 0x%.2x\n", dev->flags1); |
| 1158 | xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| 1159 | |
| 1160 | /* xmit data */ |
| 1161 | DEBUGP(4, dev, "Xmit data\n"); |
| 1162 | for (i = 0; i < nr; i++) { |
| 1163 | if (i >= 256) { |
| 1164 | dev->flags1 = 0x20 /* T_Active */ |
| 1165 | | (sendT0) /* SendT0 */ |
| 1166 | /* inverse parity: */ |
| 1167 | | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0) |
| 1168 | | (((dev->baudv - 1) & 0x0100) >> 8) /* MSB-Baud */ |
| 1169 | | 0x10; /* set address high */ |
| 1170 | DEBUGP(4, dev, "dev->flags = 0x%.2x - set address " |
| 1171 | "high\n", dev->flags1); |
| 1172 | xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| 1173 | } |
| 1174 | if (test_bit(IS_INVREV, &dev->flags)) { |
| 1175 | DEBUGP(4, dev, "Apply inverse convention for 0x%.2x " |
| 1176 | "-> 0x%.2x\n", (unsigned char)dev->sbuf[i], |
| 1177 | invert_revert(dev->sbuf[i])); |
| 1178 | xoutb(i, REG_BUF_ADDR(iobase)); |
| 1179 | xoutb(invert_revert(dev->sbuf[i]), |
| 1180 | REG_BUF_DATA(iobase)); |
| 1181 | } else { |
| 1182 | xoutb(i, REG_BUF_ADDR(iobase)); |
| 1183 | xoutb(dev->sbuf[i], REG_BUF_DATA(iobase)); |
| 1184 | } |
| 1185 | } |
| 1186 | DEBUGP(4, dev, "Xmit done\n"); |
| 1187 | |
| 1188 | if (dev->proto == 0) { |
| 1189 | /* T=0 proto: 0 byte reply */ |
| 1190 | if (nr == 4) { |
| 1191 | DEBUGP(4, dev, "T=0 assumes 0 byte reply\n"); |
| 1192 | xoutb(i, REG_BUF_ADDR(iobase)); |
| 1193 | if (test_bit(IS_INVREV, &dev->flags)) |
| 1194 | xoutb(0xff, REG_BUF_DATA(iobase)); |
| 1195 | else |
| 1196 | xoutb(0x00, REG_BUF_DATA(iobase)); |
| 1197 | } |
| 1198 | |
| 1199 | /* numSendBytes */ |
| 1200 | if (sendT0) |
| 1201 | nsend = nr; |
| 1202 | else { |
| 1203 | if (nr == 4) |
| 1204 | nsend = 5; |
| 1205 | else { |
| 1206 | nsend = 5 + (unsigned char)dev->sbuf[4]; |
| 1207 | if (dev->sbuf[4] == 0) |
| 1208 | nsend += 0x100; |
| 1209 | } |
| 1210 | } |
| 1211 | } else |
| 1212 | nsend = nr; |
| 1213 | |
| 1214 | /* T0: output procedure byte */ |
| 1215 | if (test_bit(IS_INVREV, &dev->flags)) { |
| 1216 | DEBUGP(4, dev, "T=0 set Procedure byte (inverse-reverse) " |
| 1217 | "0x%.2x\n", invert_revert(dev->sbuf[1])); |
| 1218 | xoutb(invert_revert(dev->sbuf[1]), REG_NUM_BYTES(iobase)); |
| 1219 | } else { |
| 1220 | DEBUGP(4, dev, "T=0 set Procedure byte 0x%.2x\n", dev->sbuf[1]); |
| 1221 | xoutb(dev->sbuf[1], REG_NUM_BYTES(iobase)); |
| 1222 | } |
| 1223 | |
| 1224 | DEBUGP(1, dev, "set NumSendBytes = 0x%.2x\n", |
| 1225 | (unsigned char)(nsend & 0xff)); |
| 1226 | xoutb((unsigned char)(nsend & 0xff), REG_NUM_SEND(iobase)); |
| 1227 | |
| 1228 | DEBUGP(1, dev, "Trigger CARDMAN CONTROLLER (0x%.2x)\n", |
| 1229 | 0x40 /* SM_Active */ |
| 1230 | | (dev->flags0 & 2 ? 0 : 4) /* power on if needed */ |
| 1231 | |(dev->proto ? 0x10 : 0x08) /* T=1/T=0 */ |
| 1232 | |(nsend & 0x100) >> 8 /* MSB numSendBytes */ ); |
| 1233 | xoutb(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 | REG_FLAGS0(iobase)); |
| 1238 | |
| 1239 | /* wait for xmit done */ |
| 1240 | if (dev->proto == 1) { |
| 1241 | DEBUGP(4, dev, "Wait for xmit done\n"); |
| 1242 | for (i = 0; i < 1000; i++) { |
| 1243 | if (inb(REG_FLAGS0(iobase)) & 0x08) |
| 1244 | break; |
| 1245 | msleep_interruptible(10); |
| 1246 | } |
| 1247 | if (i == 1000) { |
| 1248 | DEBUGP(4, dev, "timeout waiting for xmit done\n"); |
| 1249 | rc = -EIO; |
| 1250 | goto release_io; |
| 1251 | } |
| 1252 | } |
| 1253 | |
| 1254 | /* T=1: wait for infoLen */ |
| 1255 | |
| 1256 | infolen = 0; |
| 1257 | if (dev->proto) { |
| 1258 | /* wait until infoLen is valid */ |
| 1259 | for (i = 0; i < 6000; i++) { /* max waiting time of 1 min */ |
| 1260 | io_read_num_rec_bytes(iobase, &s); |
| 1261 | if (s >= 3) { |
| 1262 | infolen = inb(REG_FLAGS1(iobase)); |
| 1263 | DEBUGP(4, dev, "infolen=%d\n", infolen); |
| 1264 | break; |
| 1265 | } |
| 1266 | msleep_interruptible(10); |
| 1267 | } |
| 1268 | if (i == 6000) { |
| 1269 | DEBUGP(4, dev, "timeout waiting for infoLen\n"); |
| 1270 | rc = -EIO; |
| 1271 | goto release_io; |
| 1272 | } |
| 1273 | } else |
| 1274 | clear_bit(IS_PROCBYTE_PRESENT, &dev->flags); |
| 1275 | |
| 1276 | /* numRecBytes | bit9 of numRecytes */ |
| 1277 | io_read_num_rec_bytes(iobase, &dev->rlen); |
| 1278 | for (i = 0; i < 600; i++) { /* max waiting time of 2 sec */ |
| 1279 | if (dev->proto) { |
| 1280 | if (dev->rlen >= infolen + 4) |
| 1281 | break; |
| 1282 | } |
| 1283 | msleep_interruptible(10); |
| 1284 | /* numRecBytes | bit9 of numRecytes */ |
| 1285 | io_read_num_rec_bytes(iobase, &s); |
| 1286 | if (s > dev->rlen) { |
| 1287 | DEBUGP(1, dev, "NumRecBytes inc (reset timeout)\n"); |
| 1288 | i = 0; /* reset timeout */ |
| 1289 | dev->rlen = s; |
| 1290 | } |
| 1291 | /* T=0: we are done when numRecBytes doesn't |
| 1292 | * increment any more and NoProcedureByte |
| 1293 | * is set and numRecBytes == bytes sent + 6 |
| 1294 | * (header bytes + data + 1 for sw2) |
| 1295 | * except when the card replies an error |
| 1296 | * which means, no data will be sent back. |
| 1297 | */ |
| 1298 | else if (dev->proto == 0) { |
| 1299 | if ((inb(REG_BUF_ADDR(iobase)) & 0x80)) { |
| 1300 | /* no procedure byte received since last read */ |
| 1301 | DEBUGP(1, dev, "NoProcedure byte set\n"); |
| 1302 | /* i=0; */ |
| 1303 | } else { |
| 1304 | /* procedure byte received since last read */ |
| 1305 | DEBUGP(1, dev, "NoProcedure byte unset " |
| 1306 | "(reset timeout)\n"); |
| 1307 | dev->procbyte = inb(REG_FLAGS1(iobase)); |
| 1308 | DEBUGP(1, dev, "Read procedure byte 0x%.2x\n", |
| 1309 | dev->procbyte); |
| 1310 | i = 0; /* resettimeout */ |
| 1311 | } |
| 1312 | if (inb(REG_FLAGS0(iobase)) & 0x08) { |
| 1313 | DEBUGP(1, dev, "T0Done flag (read reply)\n"); |
| 1314 | break; |
| 1315 | } |
| 1316 | } |
| 1317 | if (dev->proto) |
| 1318 | infolen = inb(REG_FLAGS1(iobase)); |
| 1319 | } |
| 1320 | if (i == 600) { |
| 1321 | DEBUGP(1, dev, "timeout waiting for numRecBytes\n"); |
| 1322 | rc = -EIO; |
| 1323 | goto release_io; |
| 1324 | } else { |
| 1325 | if (dev->proto == 0) { |
| 1326 | DEBUGP(1, dev, "Wait for T0Done bit to be set\n"); |
| 1327 | for (i = 0; i < 1000; i++) { |
| 1328 | if (inb(REG_FLAGS0(iobase)) & 0x08) |
| 1329 | break; |
| 1330 | msleep_interruptible(10); |
| 1331 | } |
| 1332 | if (i == 1000) { |
| 1333 | DEBUGP(1, dev, "timeout waiting for T0Done\n"); |
| 1334 | rc = -EIO; |
| 1335 | goto release_io; |
| 1336 | } |
| 1337 | |
| 1338 | dev->procbyte = inb(REG_FLAGS1(iobase)); |
| 1339 | DEBUGP(4, dev, "Read procedure byte 0x%.2x\n", |
| 1340 | dev->procbyte); |
| 1341 | |
| 1342 | io_read_num_rec_bytes(iobase, &dev->rlen); |
| 1343 | DEBUGP(4, dev, "Read NumRecBytes = %i\n", dev->rlen); |
| 1344 | |
| 1345 | } |
| 1346 | } |
| 1347 | /* T=1: read offset=zero, T=0: read offset=after challenge */ |
| 1348 | dev->rpos = dev->proto ? 0 : nr == 4 ? 5 : nr > dev->rlen ? 5 : nr; |
| 1349 | DEBUGP(4, dev, "dev->rlen = %i, dev->rpos = %i, nr = %i\n", |
| 1350 | dev->rlen, dev->rpos, nr); |
| 1351 | |
| 1352 | release_io: |
| 1353 | DEBUGP(4, dev, "Reset SM\n"); |
| 1354 | xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */ |
| 1355 | |
| 1356 | if (rc < 0) { |
| 1357 | DEBUGP(4, dev, "Write failed but clear T_Active\n"); |
| 1358 | dev->flags1 &= 0xdf; |
| 1359 | xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| 1360 | } |
| 1361 | |
| 1362 | clear_bit(LOCK_IO, &dev->flags); |
| 1363 | wake_up_interruptible(&dev->ioq); |
| 1364 | wake_up_interruptible(&dev->readq); /* tell read we have data */ |
| 1365 | |
| 1366 | /* ITSEC E2: clear write buffer */ |
| 1367 | memset((char *)dev->sbuf, 0, 512); |
| 1368 | |
| 1369 | /* return error or actually written bytes */ |
| 1370 | DEBUGP(2, dev, "<- cmm_write\n"); |
| 1371 | return rc < 0 ? rc : nr; |
| 1372 | } |
| 1373 | |
| 1374 | static void start_monitor(struct cm4000_dev *dev) |
| 1375 | { |
| 1376 | DEBUGP(3, dev, "-> start_monitor\n"); |
| 1377 | if (!dev->monitor_running) { |
| 1378 | DEBUGP(5, dev, "create, init and add timer\n"); |
Jiri Slaby | 40565f1 | 2007-02-12 00:52:31 -0800 | [diff] [blame] | 1379 | setup_timer(&dev->timer, monitor_card, (unsigned long)dev); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1380 | dev->monitor_running = 1; |
Jiri Slaby | 40565f1 | 2007-02-12 00:52:31 -0800 | [diff] [blame] | 1381 | mod_timer(&dev->timer, jiffies); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1382 | } else |
| 1383 | DEBUGP(5, dev, "monitor already running\n"); |
| 1384 | DEBUGP(3, dev, "<- start_monitor\n"); |
| 1385 | } |
| 1386 | |
| 1387 | static void stop_monitor(struct cm4000_dev *dev) |
| 1388 | { |
| 1389 | DEBUGP(3, dev, "-> stop_monitor\n"); |
| 1390 | if (dev->monitor_running) { |
| 1391 | DEBUGP(5, dev, "stopping monitor\n"); |
| 1392 | terminate_monitor(dev); |
| 1393 | /* reset monitor SM */ |
| 1394 | clear_bit(IS_ATR_VALID, &dev->flags); |
| 1395 | clear_bit(IS_ATR_PRESENT, &dev->flags); |
| 1396 | } else |
| 1397 | DEBUGP(5, dev, "monitor already stopped\n"); |
| 1398 | DEBUGP(3, dev, "<- stop_monitor\n"); |
| 1399 | } |
| 1400 | |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1401 | static long cmm_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1402 | { |
| 1403 | struct cm4000_dev *dev = filp->private_data; |
Olof Johansson | ecb8a84 | 2008-02-04 22:27:34 -0800 | [diff] [blame] | 1404 | unsigned int iobase = dev->p_dev->io.BasePort1; |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1405 | struct inode *inode = filp->f_path.dentry->d_inode; |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 1406 | struct pcmcia_device *link; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1407 | int size; |
| 1408 | int rc; |
Al Viro | c4aa02e | 2005-12-15 09:17:55 +0000 | [diff] [blame] | 1409 | void __user *argp = (void __user *)arg; |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame^] | 1410 | #ifdef CM4000_DEBUG |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1411 | char *ioctl_names[CM_IOC_MAXNR + 1] = { |
| 1412 | [_IOC_NR(CM_IOCGSTATUS)] "CM_IOCGSTATUS", |
| 1413 | [_IOC_NR(CM_IOCGATR)] "CM_IOCGATR", |
| 1414 | [_IOC_NR(CM_IOCARDOFF)] "CM_IOCARDOFF", |
| 1415 | [_IOC_NR(CM_IOCSPTS)] "CM_IOCSPTS", |
| 1416 | [_IOC_NR(CM_IOSDBGLVL)] "CM4000_DBGLVL", |
| 1417 | }; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1418 | DEBUGP(3, dev, "cmm_ioctl(device=%d.%d) %s\n", imajor(inode), |
| 1419 | iminor(inode), ioctl_names[_IOC_NR(cmd)]); |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame^] | 1420 | #endif |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1421 | |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1422 | lock_kernel(); |
| 1423 | rc = -ENODEV; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1424 | link = dev_table[iminor(inode)]; |
Dominik Brodowski | 9940ec3 | 2006-03-05 11:04:33 +0100 | [diff] [blame] | 1425 | if (!pcmcia_dev_present(link)) { |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1426 | DEBUGP(4, dev, "DEV_OK false\n"); |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1427 | goto out; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1428 | } |
| 1429 | |
| 1430 | if (test_bit(IS_CMM_ABSENT, &dev->flags)) { |
| 1431 | DEBUGP(4, dev, "CMM_ABSENT flag set\n"); |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1432 | goto out; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1433 | } |
Dominik Brodowski | d93c768 | 2008-07-15 20:11:21 +0200 | [diff] [blame] | 1434 | rc = -EINVAL; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1435 | |
| 1436 | if (_IOC_TYPE(cmd) != CM_IOC_MAGIC) { |
| 1437 | DEBUGP(4, dev, "ioctype mismatch\n"); |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1438 | goto out; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1439 | } |
| 1440 | if (_IOC_NR(cmd) > CM_IOC_MAXNR) { |
| 1441 | DEBUGP(4, dev, "iocnr mismatch\n"); |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1442 | goto out; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1443 | } |
| 1444 | size = _IOC_SIZE(cmd); |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1445 | rc = -EFAULT; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1446 | DEBUGP(4, dev, "iocdir=%.4x iocr=%.4x iocw=%.4x iocsize=%d cmd=%.4x\n", |
| 1447 | _IOC_DIR(cmd), _IOC_READ, _IOC_WRITE, size, cmd); |
| 1448 | |
| 1449 | if (_IOC_DIR(cmd) & _IOC_READ) { |
Al Viro | c4aa02e | 2005-12-15 09:17:55 +0000 | [diff] [blame] | 1450 | if (!access_ok(VERIFY_WRITE, argp, size)) |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1451 | goto out; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1452 | } |
| 1453 | if (_IOC_DIR(cmd) & _IOC_WRITE) { |
Al Viro | c4aa02e | 2005-12-15 09:17:55 +0000 | [diff] [blame] | 1454 | if (!access_ok(VERIFY_READ, argp, size)) |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1455 | goto out; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1456 | } |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1457 | rc = 0; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1458 | |
| 1459 | switch (cmd) { |
| 1460 | case CM_IOCGSTATUS: |
| 1461 | DEBUGP(4, dev, " ... in CM_IOCGSTATUS\n"); |
| 1462 | { |
| 1463 | int status; |
| 1464 | |
| 1465 | /* clear other bits, but leave inserted & powered as |
| 1466 | * they are */ |
| 1467 | status = dev->flags0 & 3; |
| 1468 | if (test_bit(IS_ATR_PRESENT, &dev->flags)) |
| 1469 | status |= CM_ATR_PRESENT; |
| 1470 | if (test_bit(IS_ATR_VALID, &dev->flags)) |
| 1471 | status |= CM_ATR_VALID; |
| 1472 | if (test_bit(IS_CMM_ABSENT, &dev->flags)) |
| 1473 | status |= CM_NO_READER; |
| 1474 | if (test_bit(IS_BAD_CARD, &dev->flags)) |
| 1475 | status |= CM_BAD_CARD; |
Al Viro | c4aa02e | 2005-12-15 09:17:55 +0000 | [diff] [blame] | 1476 | if (copy_to_user(argp, &status, sizeof(int))) |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1477 | rc = -EFAULT; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1478 | } |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1479 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1480 | case CM_IOCGATR: |
| 1481 | DEBUGP(4, dev, "... in CM_IOCGATR\n"); |
| 1482 | { |
Al Viro | c4aa02e | 2005-12-15 09:17:55 +0000 | [diff] [blame] | 1483 | struct atreq __user *atreq = argp; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1484 | int tmp; |
| 1485 | /* allow nonblocking io and being interrupted */ |
| 1486 | if (wait_event_interruptible |
| 1487 | (dev->atrq, |
| 1488 | ((filp->f_flags & O_NONBLOCK) |
| 1489 | || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) |
| 1490 | != 0)))) { |
| 1491 | if (filp->f_flags & O_NONBLOCK) |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1492 | rc = -EAGAIN; |
| 1493 | else |
| 1494 | rc = -ERESTARTSYS; |
| 1495 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1496 | } |
| 1497 | |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1498 | rc = -EFAULT; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1499 | if (test_bit(IS_ATR_VALID, &dev->flags) == 0) { |
| 1500 | tmp = -1; |
| 1501 | if (copy_to_user(&(atreq->atr_len), &tmp, |
| 1502 | sizeof(int))) |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1503 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1504 | } else { |
| 1505 | if (copy_to_user(atreq->atr, dev->atr, |
| 1506 | dev->atr_len)) |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1507 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1508 | |
| 1509 | tmp = dev->atr_len; |
| 1510 | if (copy_to_user(&(atreq->atr_len), &tmp, sizeof(int))) |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1511 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1512 | } |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1513 | rc = 0; |
| 1514 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1515 | } |
| 1516 | case CM_IOCARDOFF: |
| 1517 | |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame^] | 1518 | #ifdef CM4000_DEBUG |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1519 | DEBUGP(4, dev, "... in CM_IOCARDOFF\n"); |
| 1520 | if (dev->flags0 & 0x01) { |
| 1521 | DEBUGP(4, dev, " Card inserted\n"); |
| 1522 | } else { |
| 1523 | DEBUGP(2, dev, " No card inserted\n"); |
| 1524 | } |
| 1525 | if (dev->flags0 & 0x02) { |
| 1526 | DEBUGP(4, dev, " Card powered\n"); |
| 1527 | } else { |
| 1528 | DEBUGP(2, dev, " Card not powered\n"); |
| 1529 | } |
| 1530 | #endif |
| 1531 | |
| 1532 | /* is a card inserted and powered? */ |
| 1533 | if ((dev->flags0 & 0x01) && (dev->flags0 & 0x02)) { |
| 1534 | |
| 1535 | /* get IO lock */ |
| 1536 | if (wait_event_interruptible |
| 1537 | (dev->ioq, |
| 1538 | ((filp->f_flags & O_NONBLOCK) |
| 1539 | || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) |
| 1540 | == 0)))) { |
| 1541 | if (filp->f_flags & O_NONBLOCK) |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1542 | rc = -EAGAIN; |
| 1543 | else |
| 1544 | rc = -ERESTARTSYS; |
| 1545 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1546 | } |
| 1547 | /* Set Flags0 = 0x42 */ |
| 1548 | DEBUGP(4, dev, "Set Flags0=0x42 \n"); |
| 1549 | xoutb(0x42, REG_FLAGS0(iobase)); |
| 1550 | clear_bit(IS_ATR_PRESENT, &dev->flags); |
| 1551 | clear_bit(IS_ATR_VALID, &dev->flags); |
| 1552 | dev->mstate = M_CARDOFF; |
| 1553 | clear_bit(LOCK_IO, &dev->flags); |
| 1554 | if (wait_event_interruptible |
| 1555 | (dev->atrq, |
| 1556 | ((filp->f_flags & O_NONBLOCK) |
| 1557 | || (test_bit(IS_ATR_VALID, (void *)&dev->flags) != |
| 1558 | 0)))) { |
| 1559 | if (filp->f_flags & O_NONBLOCK) |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1560 | rc = -EAGAIN; |
| 1561 | else |
| 1562 | rc = -ERESTARTSYS; |
| 1563 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1564 | } |
| 1565 | } |
| 1566 | /* release lock */ |
| 1567 | clear_bit(LOCK_IO, &dev->flags); |
| 1568 | wake_up_interruptible(&dev->ioq); |
| 1569 | |
Jiri Slaby | 69ae59d | 2009-06-22 18:42:10 +0100 | [diff] [blame] | 1570 | rc = 0; |
| 1571 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1572 | case CM_IOCSPTS: |
| 1573 | { |
| 1574 | struct ptsreq krnptsreq; |
| 1575 | |
Al Viro | c4aa02e | 2005-12-15 09:17:55 +0000 | [diff] [blame] | 1576 | if (copy_from_user(&krnptsreq, argp, |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1577 | sizeof(struct ptsreq))) { |
| 1578 | rc = -EFAULT; |
| 1579 | break; |
| 1580 | } |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1581 | |
| 1582 | rc = 0; |
| 1583 | DEBUGP(4, dev, "... in CM_IOCSPTS\n"); |
| 1584 | /* wait for ATR to get valid */ |
| 1585 | if (wait_event_interruptible |
| 1586 | (dev->atrq, |
| 1587 | ((filp->f_flags & O_NONBLOCK) |
| 1588 | || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) |
| 1589 | != 0)))) { |
| 1590 | if (filp->f_flags & O_NONBLOCK) |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1591 | rc = -EAGAIN; |
| 1592 | else |
| 1593 | rc = -ERESTARTSYS; |
| 1594 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1595 | } |
| 1596 | /* get IO lock */ |
| 1597 | if (wait_event_interruptible |
| 1598 | (dev->ioq, |
| 1599 | ((filp->f_flags & O_NONBLOCK) |
| 1600 | || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) |
| 1601 | == 0)))) { |
| 1602 | if (filp->f_flags & O_NONBLOCK) |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1603 | rc = -EAGAIN; |
| 1604 | else |
| 1605 | rc = -ERESTARTSYS; |
| 1606 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1607 | } |
| 1608 | |
| 1609 | if ((rc = set_protocol(dev, &krnptsreq)) != 0) { |
| 1610 | /* auto power_on again */ |
| 1611 | dev->mstate = M_FETCH_ATR; |
| 1612 | clear_bit(IS_ATR_VALID, &dev->flags); |
| 1613 | } |
| 1614 | /* release lock */ |
| 1615 | clear_bit(LOCK_IO, &dev->flags); |
| 1616 | wake_up_interruptible(&dev->ioq); |
| 1617 | |
| 1618 | } |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1619 | break; |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame^] | 1620 | #ifdef CM4000_DEBUG |
| 1621 | case CM_IOSDBGLVL: |
| 1622 | rc = -ENOTTY; |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1623 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1624 | #endif |
| 1625 | default: |
| 1626 | DEBUGP(4, dev, "... in default (unknown IOCTL code)\n"); |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1627 | rc = -ENOTTY; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1628 | } |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1629 | out: |
| 1630 | unlock_kernel(); |
| 1631 | return rc; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1632 | } |
| 1633 | |
| 1634 | static int cmm_open(struct inode *inode, struct file *filp) |
| 1635 | { |
| 1636 | struct cm4000_dev *dev; |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 1637 | struct pcmcia_device *link; |
Daniel Ritz | 925796e | 2007-08-10 13:00:58 -0700 | [diff] [blame] | 1638 | int minor = iminor(inode); |
Jonathan Corbet | 8b5332f | 2008-06-19 14:34:41 -0600 | [diff] [blame] | 1639 | int ret; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1640 | |
| 1641 | if (minor >= CM4000_MAX_DEV) |
| 1642 | return -ENODEV; |
| 1643 | |
Jonathan Corbet | 8b5332f | 2008-06-19 14:34:41 -0600 | [diff] [blame] | 1644 | lock_kernel(); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1645 | link = dev_table[minor]; |
Jonathan Corbet | 8b5332f | 2008-06-19 14:34:41 -0600 | [diff] [blame] | 1646 | if (link == NULL || !pcmcia_dev_present(link)) { |
| 1647 | ret = -ENODEV; |
| 1648 | goto out; |
| 1649 | } |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1650 | |
Jonathan Corbet | 8b5332f | 2008-06-19 14:34:41 -0600 | [diff] [blame] | 1651 | if (link->open) { |
| 1652 | ret = -EBUSY; |
| 1653 | goto out; |
| 1654 | } |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1655 | |
| 1656 | dev = link->priv; |
| 1657 | filp->private_data = dev; |
| 1658 | |
| 1659 | DEBUGP(2, dev, "-> cmm_open(device=%d.%d process=%s,%d)\n", |
| 1660 | imajor(inode), minor, current->comm, current->pid); |
| 1661 | |
| 1662 | /* init device variables, they may be "polluted" after close |
| 1663 | * or, the device may never have been closed (i.e. open failed) |
| 1664 | */ |
| 1665 | |
| 1666 | ZERO_DEV(dev); |
| 1667 | |
| 1668 | /* opening will always block since the |
| 1669 | * monitor will be started by open, which |
| 1670 | * means we have to wait for ATR becoming |
| 1671 | * vaild = block until valid (or card |
| 1672 | * inserted) |
| 1673 | */ |
Jonathan Corbet | 8b5332f | 2008-06-19 14:34:41 -0600 | [diff] [blame] | 1674 | if (filp->f_flags & O_NONBLOCK) { |
| 1675 | ret = -EAGAIN; |
| 1676 | goto out; |
| 1677 | } |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1678 | |
| 1679 | dev->mdelay = T_50MSEC; |
| 1680 | |
| 1681 | /* start monitoring the cardstatus */ |
| 1682 | start_monitor(dev); |
| 1683 | |
| 1684 | link->open = 1; /* only one open per device */ |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1685 | |
| 1686 | DEBUGP(2, dev, "<- cmm_open\n"); |
Jonathan Corbet | 8b5332f | 2008-06-19 14:34:41 -0600 | [diff] [blame] | 1687 | ret = nonseekable_open(inode, filp); |
| 1688 | out: |
| 1689 | unlock_kernel(); |
| 1690 | return ret; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1691 | } |
| 1692 | |
| 1693 | static int cmm_close(struct inode *inode, struct file *filp) |
| 1694 | { |
| 1695 | struct cm4000_dev *dev; |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 1696 | struct pcmcia_device *link; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1697 | int minor = iminor(inode); |
| 1698 | |
| 1699 | if (minor >= CM4000_MAX_DEV) |
| 1700 | return -ENODEV; |
| 1701 | |
| 1702 | link = dev_table[minor]; |
| 1703 | if (link == NULL) |
| 1704 | return -ENODEV; |
| 1705 | |
| 1706 | dev = link->priv; |
| 1707 | |
| 1708 | DEBUGP(2, dev, "-> cmm_close(maj/min=%d.%d)\n", |
| 1709 | imajor(inode), minor); |
| 1710 | |
| 1711 | stop_monitor(dev); |
| 1712 | |
| 1713 | ZERO_DEV(dev); |
| 1714 | |
| 1715 | link->open = 0; /* only one open per device */ |
| 1716 | wake_up(&dev->devq); /* socket removed? */ |
| 1717 | |
| 1718 | DEBUGP(2, dev, "cmm_close\n"); |
| 1719 | return 0; |
| 1720 | } |
| 1721 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 1722 | static void cmm_cm4000_release(struct pcmcia_device * link) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1723 | { |
| 1724 | struct cm4000_dev *dev = link->priv; |
| 1725 | |
| 1726 | /* dont terminate the monitor, rather rely on |
| 1727 | * close doing that for us. |
| 1728 | */ |
| 1729 | DEBUGP(3, dev, "-> cmm_cm4000_release\n"); |
| 1730 | while (link->open) { |
| 1731 | printk(KERN_INFO MODULE_NAME ": delaying release until " |
| 1732 | "process has terminated\n"); |
| 1733 | /* note: don't interrupt us: |
| 1734 | * close the applications which own |
| 1735 | * the devices _first_ ! |
| 1736 | */ |
| 1737 | wait_event(dev->devq, (link->open == 0)); |
| 1738 | } |
| 1739 | /* dev->devq=NULL; this cannot be zeroed earlier */ |
| 1740 | DEBUGP(3, dev, "<- cmm_cm4000_release\n"); |
| 1741 | return; |
| 1742 | } |
| 1743 | |
| 1744 | /*==== Interface to PCMCIA Layer =======================================*/ |
| 1745 | |
Dominik Brodowski | 84e2d34 | 2008-07-29 08:38:55 +0200 | [diff] [blame] | 1746 | static int cm4000_config_check(struct pcmcia_device *p_dev, |
| 1747 | cistpl_cftable_entry_t *cfg, |
Dominik Brodowski | 8e2fc39 | 2008-08-02 15:30:31 +0200 | [diff] [blame] | 1748 | cistpl_cftable_entry_t *dflt, |
Dominik Brodowski | ad913c1 | 2008-08-02 16:12:00 +0200 | [diff] [blame] | 1749 | unsigned int vcc, |
Dominik Brodowski | 84e2d34 | 2008-07-29 08:38:55 +0200 | [diff] [blame] | 1750 | void *priv_data) |
| 1751 | { |
Dominik Brodowski | 84e2d34 | 2008-07-29 08:38:55 +0200 | [diff] [blame] | 1752 | if (!cfg->io.nwin) |
| 1753 | return -ENODEV; |
| 1754 | |
| 1755 | /* Get the IOaddr */ |
| 1756 | p_dev->io.BasePort1 = cfg->io.win[0].base; |
| 1757 | p_dev->io.NumPorts1 = cfg->io.win[0].len; |
| 1758 | p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; |
| 1759 | if (!(cfg->io.flags & CISTPL_IO_8BIT)) |
| 1760 | p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_16; |
| 1761 | if (!(cfg->io.flags & CISTPL_IO_16BIT)) |
| 1762 | p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; |
| 1763 | p_dev->io.IOAddrLines = cfg->io.flags & CISTPL_IO_LINES_MASK; |
| 1764 | |
| 1765 | return pcmcia_request_io(p_dev, &p_dev->io); |
| 1766 | } |
| 1767 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 1768 | static int cm4000_config(struct pcmcia_device * link, int devno) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1769 | { |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1770 | struct cm4000_dev *dev; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1771 | |
| 1772 | /* read the config-tuples */ |
Dominik Brodowski | 84e2d34 | 2008-07-29 08:38:55 +0200 | [diff] [blame] | 1773 | if (pcmcia_loop_config(link, cm4000_config_check, NULL)) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1774 | goto cs_release; |
| 1775 | |
| 1776 | link->conf.IntType = 00000002; |
| 1777 | |
Dominik Brodowski | 84e2d34 | 2008-07-29 08:38:55 +0200 | [diff] [blame] | 1778 | if (pcmcia_request_configuration(link, &link->conf)) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1779 | goto cs_release; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1780 | |
| 1781 | dev = link->priv; |
| 1782 | sprintf(dev->node.dev_name, DEVICE_NAME "%d", devno); |
| 1783 | dev->node.major = major; |
| 1784 | dev->node.minor = devno; |
| 1785 | dev->node.next = NULL; |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 1786 | link->dev_node = &dev->node; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1787 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 1788 | return 0; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1789 | |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1790 | cs_release: |
| 1791 | cm4000_release(link); |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 1792 | return -ENODEV; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1793 | } |
| 1794 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 1795 | static int cm4000_suspend(struct pcmcia_device *link) |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 1796 | { |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 1797 | struct cm4000_dev *dev; |
| 1798 | |
| 1799 | dev = link->priv; |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 1800 | stop_monitor(dev); |
| 1801 | |
| 1802 | return 0; |
| 1803 | } |
| 1804 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 1805 | static int cm4000_resume(struct pcmcia_device *link) |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 1806 | { |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 1807 | struct cm4000_dev *dev; |
| 1808 | |
| 1809 | dev = link->priv; |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 1810 | if (link->open) |
| 1811 | start_monitor(dev); |
| 1812 | |
| 1813 | return 0; |
| 1814 | } |
| 1815 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 1816 | static void cm4000_release(struct pcmcia_device *link) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1817 | { |
Daniel Ritz | 925796e | 2007-08-10 13:00:58 -0700 | [diff] [blame] | 1818 | cmm_cm4000_release(link); /* delay release until device closed */ |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 1819 | pcmcia_disable_device(link); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1820 | } |
| 1821 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 1822 | static int cm4000_probe(struct pcmcia_device *link) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1823 | { |
| 1824 | struct cm4000_dev *dev; |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 1825 | int i, ret; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1826 | |
| 1827 | for (i = 0; i < CM4000_MAX_DEV; i++) |
| 1828 | if (dev_table[i] == NULL) |
| 1829 | break; |
| 1830 | |
| 1831 | if (i == CM4000_MAX_DEV) { |
| 1832 | printk(KERN_NOTICE MODULE_NAME ": all devices in use\n"); |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 1833 | return -ENODEV; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1834 | } |
| 1835 | |
| 1836 | /* create a new cm4000_cs device */ |
| 1837 | dev = kzalloc(sizeof(struct cm4000_dev), GFP_KERNEL); |
| 1838 | if (dev == NULL) |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 1839 | return -ENOMEM; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1840 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 1841 | dev->p_dev = link; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1842 | link->priv = dev; |
| 1843 | link->conf.IntType = INT_MEMORY_AND_IO; |
| 1844 | dev_table[i] = link; |
| 1845 | |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1846 | init_waitqueue_head(&dev->devq); |
| 1847 | init_waitqueue_head(&dev->ioq); |
| 1848 | init_waitqueue_head(&dev->atrq); |
| 1849 | init_waitqueue_head(&dev->readq); |
| 1850 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 1851 | ret = cm4000_config(link, i); |
Akinobu Mita | 54493c1 | 2007-05-09 02:33:31 -0700 | [diff] [blame] | 1852 | if (ret) { |
| 1853 | dev_table[i] = NULL; |
| 1854 | kfree(dev); |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 1855 | return ret; |
Akinobu Mita | 54493c1 | 2007-05-09 02:33:31 -0700 | [diff] [blame] | 1856 | } |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 1857 | |
Greg Kroah-Hartman | 03457cd | 2008-07-21 20:03:34 -0700 | [diff] [blame] | 1858 | device_create(cmm_class, NULL, MKDEV(major, i), NULL, "cmm%d", i); |
Harald Welte | 67bc620 | 2006-02-14 09:21:26 +0100 | [diff] [blame] | 1859 | |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 1860 | return 0; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1861 | } |
| 1862 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 1863 | static void cm4000_detach(struct pcmcia_device *link) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1864 | { |
| 1865 | struct cm4000_dev *dev = link->priv; |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 1866 | int devno; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1867 | |
| 1868 | /* find device */ |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 1869 | for (devno = 0; devno < CM4000_MAX_DEV; devno++) |
| 1870 | if (dev_table[devno] == link) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1871 | break; |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 1872 | if (devno == CM4000_MAX_DEV) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1873 | return; |
| 1874 | |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 1875 | stop_monitor(dev); |
| 1876 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 1877 | cm4000_release(link); |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 1878 | |
| 1879 | dev_table[devno] = NULL; |
Akinobu Mita | 54493c1 | 2007-05-09 02:33:31 -0700 | [diff] [blame] | 1880 | kfree(dev); |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 1881 | |
tonyj@suse.de | 07c015e | 2007-08-07 22:28:44 -0700 | [diff] [blame] | 1882 | device_destroy(cmm_class, MKDEV(major, devno)); |
Harald Welte | 67bc620 | 2006-02-14 09:21:26 +0100 | [diff] [blame] | 1883 | |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1884 | return; |
| 1885 | } |
| 1886 | |
Arjan van de Ven | 62322d2 | 2006-07-03 00:24:21 -0700 | [diff] [blame] | 1887 | static const struct file_operations cm4000_fops = { |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1888 | .owner = THIS_MODULE, |
| 1889 | .read = cmm_read, |
| 1890 | .write = cmm_write, |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1891 | .unlocked_ioctl = cmm_ioctl, |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1892 | .open = cmm_open, |
| 1893 | .release= cmm_close, |
| 1894 | }; |
| 1895 | |
| 1896 | static struct pcmcia_device_id cm4000_ids[] = { |
| 1897 | PCMCIA_DEVICE_MANF_CARD(0x0223, 0x0002), |
| 1898 | PCMCIA_DEVICE_PROD_ID12("CardMan", "4000", 0x2FB368CA, 0xA2BD8C39), |
| 1899 | PCMCIA_DEVICE_NULL, |
| 1900 | }; |
| 1901 | MODULE_DEVICE_TABLE(pcmcia, cm4000_ids); |
| 1902 | |
| 1903 | static struct pcmcia_driver cm4000_driver = { |
| 1904 | .owner = THIS_MODULE, |
| 1905 | .drv = { |
| 1906 | .name = "cm4000_cs", |
| 1907 | }, |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 1908 | .probe = cm4000_probe, |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 1909 | .remove = cm4000_detach, |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 1910 | .suspend = cm4000_suspend, |
| 1911 | .resume = cm4000_resume, |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1912 | .id_table = cm4000_ids, |
| 1913 | }; |
| 1914 | |
| 1915 | static int __init cmm_init(void) |
| 1916 | { |
Harald Welte | 67bc620 | 2006-02-14 09:21:26 +0100 | [diff] [blame] | 1917 | int rc; |
| 1918 | |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1919 | printk(KERN_INFO "%s\n", version); |
Harald Welte | 67bc620 | 2006-02-14 09:21:26 +0100 | [diff] [blame] | 1920 | |
| 1921 | cmm_class = class_create(THIS_MODULE, "cardman_4000"); |
Akinobu Mita | 5eb5fc9 | 2006-10-17 15:25:59 +0900 | [diff] [blame] | 1922 | if (IS_ERR(cmm_class)) |
| 1923 | return PTR_ERR(cmm_class); |
Harald Welte | 67bc620 | 2006-02-14 09:21:26 +0100 | [diff] [blame] | 1924 | |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1925 | major = register_chrdev(0, DEVICE_NAME, &cm4000_fops); |
| 1926 | if (major < 0) { |
| 1927 | printk(KERN_WARNING MODULE_NAME |
| 1928 | ": could not get major number\n"); |
Akinobu Mita | 54493c1 | 2007-05-09 02:33:31 -0700 | [diff] [blame] | 1929 | class_destroy(cmm_class); |
Akinobu Mita | 5eb5fc9 | 2006-10-17 15:25:59 +0900 | [diff] [blame] | 1930 | return major; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1931 | } |
| 1932 | |
Harald Welte | 7fc5b1e | 2006-05-10 13:28:52 +0200 | [diff] [blame] | 1933 | rc = pcmcia_register_driver(&cm4000_driver); |
| 1934 | if (rc < 0) { |
| 1935 | unregister_chrdev(major, DEVICE_NAME); |
Akinobu Mita | 54493c1 | 2007-05-09 02:33:31 -0700 | [diff] [blame] | 1936 | class_destroy(cmm_class); |
Harald Welte | 7fc5b1e | 2006-05-10 13:28:52 +0200 | [diff] [blame] | 1937 | return rc; |
| 1938 | } |
| 1939 | |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1940 | return 0; |
| 1941 | } |
| 1942 | |
| 1943 | static void __exit cmm_exit(void) |
| 1944 | { |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1945 | printk(KERN_INFO MODULE_NAME ": unloading\n"); |
| 1946 | pcmcia_unregister_driver(&cm4000_driver); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1947 | unregister_chrdev(major, DEVICE_NAME); |
Harald Welte | 67bc620 | 2006-02-14 09:21:26 +0100 | [diff] [blame] | 1948 | class_destroy(cmm_class); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1949 | }; |
| 1950 | |
| 1951 | module_init(cmm_init); |
| 1952 | module_exit(cmm_exit); |
| 1953 | MODULE_LICENSE("Dual BSD/GPL"); |