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> |
Mauro Carvalho Chehab | 8c27ceff3 | 2016-10-18 10:12:27 -0200 | [diff] [blame] | 17 | * - Adhere to Kernel process/coding-style.rst |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 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> |
Arnd Bergmann | 613655f | 2010-06-02 14:28:52 +0200 | [diff] [blame] | 33 | #include <linux/mutex.h> |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 34 | #include <linux/uaccess.h> |
| 35 | #include <linux/io.h> |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 36 | |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 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 | |
Dominik Brodowski | dd2e5a1 | 2009-11-03 10:27:34 +0100 | [diff] [blame] | 46 | #define reader_to_dev(x) (&x->p_dev->dev) |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame] | 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); \ |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 55 | } while (0) |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame] | 56 | |
Arnd Bergmann | 613655f | 2010-06-02 14:28:52 +0200 | [diff] [blame] | 57 | static DEFINE_MUTEX(cmm_mutex); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 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 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 67 | static void cm4000_release(struct pcmcia_device *link); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 68 | |
| 69 | static 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 | |
| 105 | struct cm4000_dev { |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 106 | struct pcmcia_device *p_dev; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 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) - \ |
Al Viro | a2bcce8 | 2006-06-15 12:26:55 +0100 | [diff] [blame] | 148 | offsetof(struct cm4000_dev, atr_csum)) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 149 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 150 | static struct pcmcia_device *dev_table[CM4000_MAX_DEV]; |
Harald Welte | 67bc620 | 2006-02-14 09:21:26 +0100 | [diff] [blame] | 151 | static struct class *cmm_class; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 152 | |
| 153 | /* This table doesn't use spaces after the comma between fields and thus |
Mauro Carvalho Chehab | 8c27ceff3 | 2016-10-18 10:12:27 -0200 | [diff] [blame] | 154 | * violates process/coding-style.rst. However, I don't really think wrapping it around will |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 155 | * make it any clearer to read -HW */ |
| 156 | static 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 | |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame] | 171 | #ifndef CM4000_DEBUG |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 172 | #define xoutb outb |
| 173 | #define xinb inb |
| 174 | #else |
| 175 | static inline void xoutb(unsigned char val, unsigned short port) |
| 176 | { |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame] | 177 | pr_debug("outb(val=%.2x,port=%.4x)\n", val, port); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 178 | outb(val, port); |
| 179 | } |
| 180 | static inline unsigned char xinb(unsigned short port) |
| 181 | { |
| 182 | unsigned char val; |
| 183 | |
| 184 | val = inb(port); |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame] | 185 | pr_debug("%.2x=inb(%.4x)\n", val, port); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 186 | |
| 187 | return val; |
| 188 | } |
| 189 | #endif |
| 190 | |
Akinobu Mita | 884c3d7 | 2007-05-09 02:33:32 -0700 | [diff] [blame] | 191 | static inline unsigned char invert_revert(unsigned char ch) |
| 192 | { |
| 193 | return bitrev8(~ch); |
| 194 | } |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 195 | |
| 196 | static void str_invert_revert(unsigned char *b, int len) |
| 197 | { |
| 198 | int i; |
| 199 | |
| 200 | for (i = 0; i < len; i++) |
Akinobu Mita | 884c3d7 | 2007-05-09 02:33:32 -0700 | [diff] [blame] | 201 | b[i] = invert_revert(b[i]); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 202 | } |
| 203 | |
| 204 | #define ATRLENCK(dev,pos) \ |
| 205 | if (pos>=dev->atr_len || pos>=MAX_ATR) \ |
| 206 | goto return_0; |
| 207 | |
| 208 | static 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 | |
Olof Johansson | ecb8a84 | 2008-02-04 22:27:34 -0800 | [diff] [blame] | 304 | static unsigned short io_read_num_rec_bytes(unsigned int iobase, |
| 305 | unsigned short *s) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 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 | |
| 319 | static 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 | |
| 400 | struct card_fixup { |
| 401 | char atr[12]; |
| 402 | u_int8_t atr_len; |
| 403 | u_int8_t stopbits; |
| 404 | }; |
| 405 | |
| 406 | static 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 | |
| 420 | static void set_cardparameter(struct cm4000_dev *dev) |
| 421 | { |
| 422 | int i; |
Dominik Brodowski | 9a017a9 | 2010-07-24 15:58:54 +0200 | [diff] [blame] | 423 | unsigned int iobase = dev->p_dev->resource[0]->start; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 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 | |
| 449 | static 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; |
Dominik Brodowski | 9a017a9 | 2010-07-24 15:58:54 +0200 | [diff] [blame] | 456 | unsigned int iobase = dev->p_dev->resource[0]->start; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 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 */ |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame] | 509 | #ifdef CM4000_DEBUG |
| 510 | pr_debug("0x%.2x ", dev->pts[i]); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 511 | } |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame] | 512 | pr_debug("\n"); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 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 | mdelay(10); |
| 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 | break; |
| 548 | } |
| 549 | mdelay(10); |
| 550 | } |
| 551 | |
| 552 | /* check whether it is a short PTS reply? */ |
| 553 | if (num_bytes_read == 3) |
| 554 | i = 0; |
| 555 | |
| 556 | if (i == 100) { |
| 557 | DEBUGP(5, dev, "Timeout reading num_bytes_read\n"); |
| 558 | rc = -EIO; |
| 559 | goto exit_setprotocol; |
| 560 | } |
| 561 | |
| 562 | DEBUGP(5, dev, "Reset the CARDMAN CONTROLLER\n"); |
| 563 | xoutb(0x80, REG_FLAGS0(iobase)); |
| 564 | |
| 565 | /* Read PPS reply */ |
| 566 | DEBUGP(5, dev, "Read PPS reply\n"); |
| 567 | for (i = 0; i < num_bytes_read; i++) { |
| 568 | xoutb(i, REG_BUF_ADDR(iobase)); |
| 569 | pts_reply[i] = inb(REG_BUF_DATA(iobase)); |
| 570 | } |
| 571 | |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame] | 572 | #ifdef CM4000_DEBUG |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 573 | DEBUGP(2, dev, "PTSreply: "); |
| 574 | for (i = 0; i < num_bytes_read; i++) { |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame] | 575 | pr_debug("0x%.2x ", pts_reply[i]); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 576 | } |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame] | 577 | pr_debug("\n"); |
| 578 | #endif /* CM4000_DEBUG */ |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 579 | |
| 580 | DEBUGP(5, dev, "Clear Tactive in Flags1\n"); |
| 581 | xoutb(0x20, REG_FLAGS1(iobase)); |
| 582 | |
| 583 | /* Compare ptsreq and ptsreply */ |
| 584 | if ((dev->pts[0] == pts_reply[0]) && |
| 585 | (dev->pts[1] == pts_reply[1]) && |
| 586 | (dev->pts[2] == pts_reply[2]) && (dev->pts[3] == pts_reply[3])) { |
| 587 | /* setcardparameter according to PPS */ |
| 588 | dev->baudv = calc_baudv(dev->pts[2]); |
| 589 | set_cardparameter(dev); |
| 590 | } else if ((dev->pts[0] == pts_reply[0]) && |
| 591 | ((dev->pts[1] & 0xef) == pts_reply[1]) && |
| 592 | ((pts_reply[0] ^ pts_reply[1]) == pts_reply[2])) { |
| 593 | /* short PTS reply, set card parameter to default values */ |
| 594 | dev->baudv = calc_baudv(0x11); |
| 595 | set_cardparameter(dev); |
| 596 | } else |
| 597 | rc = -EIO; |
| 598 | |
| 599 | exit_setprotocol: |
| 600 | DEBUGP(3, dev, "<- set_protocol\n"); |
| 601 | return rc; |
| 602 | } |
| 603 | |
Olof Johansson | ecb8a84 | 2008-02-04 22:27:34 -0800 | [diff] [blame] | 604 | static int io_detect_cm4000(unsigned int iobase, struct cm4000_dev *dev) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 605 | { |
| 606 | |
| 607 | /* note: statemachine is assumed to be reset */ |
| 608 | if (inb(REG_FLAGS0(iobase)) & 8) { |
| 609 | clear_bit(IS_ATR_VALID, &dev->flags); |
| 610 | set_bit(IS_CMM_ABSENT, &dev->flags); |
| 611 | return 0; /* detect CMM = 1 -> failure */ |
| 612 | } |
| 613 | /* xoutb(0x40, REG_FLAGS1(iobase)); detectCMM */ |
| 614 | xoutb(dev->flags1 | 0x40, REG_FLAGS1(iobase)); |
| 615 | if ((inb(REG_FLAGS0(iobase)) & 8) == 0) { |
| 616 | clear_bit(IS_ATR_VALID, &dev->flags); |
| 617 | set_bit(IS_CMM_ABSENT, &dev->flags); |
| 618 | return 0; /* detect CMM=0 -> failure */ |
| 619 | } |
| 620 | /* clear detectCMM again by restoring original flags1 */ |
| 621 | xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| 622 | return 1; |
| 623 | } |
| 624 | |
| 625 | static void terminate_monitor(struct cm4000_dev *dev) |
| 626 | { |
| 627 | |
| 628 | /* tell the monitor to stop and wait until |
| 629 | * it terminates. |
| 630 | */ |
| 631 | DEBUGP(3, dev, "-> terminate_monitor\n"); |
| 632 | wait_event_interruptible(dev->devq, |
| 633 | test_and_set_bit(LOCK_MONITOR, |
| 634 | (void *)&dev->flags)); |
| 635 | |
| 636 | /* now, LOCK_MONITOR has been set. |
| 637 | * allow a last cycle in the monitor. |
| 638 | * the monitor will indicate that it has |
| 639 | * finished by clearing this bit. |
| 640 | */ |
| 641 | DEBUGP(5, dev, "Now allow last cycle of monitor!\n"); |
| 642 | while (test_bit(LOCK_MONITOR, (void *)&dev->flags)) |
| 643 | msleep(25); |
| 644 | |
| 645 | DEBUGP(5, dev, "Delete timer\n"); |
| 646 | del_timer_sync(&dev->timer); |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame] | 647 | #ifdef CM4000_DEBUG |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 648 | dev->monitor_running = 0; |
| 649 | #endif |
| 650 | |
| 651 | DEBUGP(3, dev, "<- terminate_monitor\n"); |
| 652 | } |
| 653 | |
| 654 | /* |
| 655 | * monitor the card every 50msec. as a side-effect, retrieve the |
| 656 | * atr once a card is inserted. another side-effect of retrieving the |
| 657 | * atr is that the card will be powered on, so there is no need to |
Masahiro Yamada | 34dcaf4 | 2017-02-27 14:29:36 -0800 | [diff] [blame] | 658 | * power on the card explicitly from the application: the driver |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 659 | * is already doing that for you. |
| 660 | */ |
| 661 | |
| 662 | static void monitor_card(unsigned long p) |
| 663 | { |
| 664 | struct cm4000_dev *dev = (struct cm4000_dev *) p; |
Dominik Brodowski | 9a017a9 | 2010-07-24 15:58:54 +0200 | [diff] [blame] | 665 | unsigned int iobase = dev->p_dev->resource[0]->start; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 666 | unsigned short s; |
| 667 | struct ptsreq ptsreq; |
| 668 | int i, atrc; |
| 669 | |
| 670 | DEBUGP(7, dev, "-> monitor_card\n"); |
| 671 | |
| 672 | /* if someone has set the lock for us: we're done! */ |
| 673 | if (test_and_set_bit(LOCK_MONITOR, &dev->flags)) { |
| 674 | DEBUGP(4, dev, "About to stop monitor\n"); |
| 675 | /* no */ |
| 676 | dev->rlen = |
| 677 | dev->rpos = |
| 678 | dev->atr_csum = dev->atr_len_retry = dev->cwarn = 0; |
| 679 | dev->mstate = M_FETCH_ATR; |
| 680 | clear_bit(LOCK_MONITOR, &dev->flags); |
| 681 | /* close et al. are sleeping on devq, so wake it */ |
| 682 | wake_up_interruptible(&dev->devq); |
| 683 | DEBUGP(2, dev, "<- monitor_card (we are done now)\n"); |
| 684 | return; |
| 685 | } |
| 686 | |
| 687 | /* try to lock io: if it is already locked, just add another timer */ |
| 688 | if (test_and_set_bit(LOCK_IO, (void *)&dev->flags)) { |
| 689 | DEBUGP(4, dev, "Couldn't get IO lock\n"); |
| 690 | goto return_with_timer; |
| 691 | } |
| 692 | |
| 693 | /* is a card/a reader inserted at all ? */ |
| 694 | dev->flags0 = xinb(REG_FLAGS0(iobase)); |
| 695 | DEBUGP(7, dev, "dev->flags0 = 0x%2x\n", dev->flags0); |
| 696 | DEBUGP(7, dev, "smartcard present: %s\n", |
| 697 | dev->flags0 & 1 ? "yes" : "no"); |
| 698 | DEBUGP(7, dev, "cardman present: %s\n", |
| 699 | dev->flags0 == 0xff ? "no" : "yes"); |
| 700 | |
| 701 | if ((dev->flags0 & 1) == 0 /* no smartcard inserted */ |
| 702 | || dev->flags0 == 0xff) { /* no cardman inserted */ |
| 703 | /* no */ |
| 704 | dev->rlen = |
| 705 | dev->rpos = |
| 706 | dev->atr_csum = dev->atr_len_retry = dev->cwarn = 0; |
| 707 | dev->mstate = M_FETCH_ATR; |
| 708 | |
| 709 | dev->flags &= 0x000000ff; /* only keep IO and MONITOR locks */ |
| 710 | |
| 711 | if (dev->flags0 == 0xff) { |
| 712 | DEBUGP(4, dev, "set IS_CMM_ABSENT bit\n"); |
| 713 | set_bit(IS_CMM_ABSENT, &dev->flags); |
| 714 | } else if (test_bit(IS_CMM_ABSENT, &dev->flags)) { |
| 715 | DEBUGP(4, dev, "clear IS_CMM_ABSENT bit " |
| 716 | "(card is removed)\n"); |
| 717 | clear_bit(IS_CMM_ABSENT, &dev->flags); |
| 718 | } |
| 719 | |
| 720 | goto release_io; |
| 721 | } else if ((dev->flags0 & 1) && test_bit(IS_CMM_ABSENT, &dev->flags)) { |
| 722 | /* cardman and card present but cardman was absent before |
| 723 | * (after suspend with inserted card) */ |
| 724 | DEBUGP(4, dev, "clear IS_CMM_ABSENT bit (card is inserted)\n"); |
| 725 | clear_bit(IS_CMM_ABSENT, &dev->flags); |
| 726 | } |
| 727 | |
| 728 | if (test_bit(IS_ATR_VALID, &dev->flags) == 1) { |
| 729 | DEBUGP(7, dev, "believe ATR is already valid (do nothing)\n"); |
| 730 | goto release_io; |
| 731 | } |
| 732 | |
| 733 | switch (dev->mstate) { |
| 734 | unsigned char flags0; |
| 735 | case M_CARDOFF: |
| 736 | DEBUGP(4, dev, "M_CARDOFF\n"); |
| 737 | flags0 = inb(REG_FLAGS0(iobase)); |
| 738 | if (flags0 & 0x02) { |
| 739 | /* wait until Flags0 indicate power is off */ |
| 740 | dev->mdelay = T_10MSEC; |
| 741 | } else { |
| 742 | /* Flags0 indicate power off and no card inserted now; |
| 743 | * Reset CARDMAN CONTROLLER */ |
| 744 | xoutb(0x80, REG_FLAGS0(iobase)); |
| 745 | |
| 746 | /* prepare for fetching ATR again: after card off ATR |
| 747 | * is read again automatically */ |
| 748 | dev->rlen = |
| 749 | dev->rpos = |
| 750 | dev->atr_csum = |
| 751 | dev->atr_len_retry = dev->cwarn = 0; |
| 752 | dev->mstate = M_FETCH_ATR; |
| 753 | |
| 754 | /* minimal gap between CARDOFF and read ATR is 50msec */ |
| 755 | dev->mdelay = T_50MSEC; |
| 756 | } |
| 757 | break; |
| 758 | case M_FETCH_ATR: |
| 759 | DEBUGP(4, dev, "M_FETCH_ATR\n"); |
| 760 | xoutb(0x80, REG_FLAGS0(iobase)); |
| 761 | DEBUGP(4, dev, "Reset BAUDV to 9600\n"); |
| 762 | dev->baudv = 0x173; /* 9600 */ |
| 763 | xoutb(0x02, REG_STOPBITS(iobase)); /* stopbits=2 */ |
| 764 | xoutb(0x73, REG_BAUDRATE(iobase)); /* baud value */ |
| 765 | xoutb(0x21, REG_FLAGS1(iobase)); /* T_Active=1, baud |
| 766 | value */ |
| 767 | /* warm start vs. power on: */ |
| 768 | xoutb(dev->flags0 & 2 ? 0x46 : 0x44, REG_FLAGS0(iobase)); |
| 769 | dev->mdelay = T_40MSEC; |
| 770 | dev->mstate = M_TIMEOUT_WAIT; |
| 771 | break; |
| 772 | case M_TIMEOUT_WAIT: |
| 773 | DEBUGP(4, dev, "M_TIMEOUT_WAIT\n"); |
| 774 | /* numRecBytes */ |
| 775 | io_read_num_rec_bytes(iobase, &dev->atr_len); |
| 776 | dev->mdelay = T_10MSEC; |
| 777 | dev->mstate = M_READ_ATR_LEN; |
| 778 | break; |
| 779 | case M_READ_ATR_LEN: |
| 780 | DEBUGP(4, dev, "M_READ_ATR_LEN\n"); |
| 781 | /* infinite loop possible, since there is no timeout */ |
| 782 | |
| 783 | #define MAX_ATR_LEN_RETRY 100 |
| 784 | |
| 785 | if (dev->atr_len == io_read_num_rec_bytes(iobase, &s)) { |
| 786 | if (dev->atr_len_retry++ >= MAX_ATR_LEN_RETRY) { /* + XX msec */ |
| 787 | dev->mdelay = T_10MSEC; |
| 788 | dev->mstate = M_READ_ATR; |
| 789 | } |
| 790 | } else { |
| 791 | dev->atr_len = s; |
| 792 | dev->atr_len_retry = 0; /* set new timeout */ |
| 793 | } |
| 794 | |
| 795 | DEBUGP(4, dev, "Current ATR_LEN = %i\n", dev->atr_len); |
| 796 | break; |
| 797 | case M_READ_ATR: |
| 798 | DEBUGP(4, dev, "M_READ_ATR\n"); |
| 799 | xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */ |
| 800 | for (i = 0; i < dev->atr_len; i++) { |
| 801 | xoutb(i, REG_BUF_ADDR(iobase)); |
| 802 | dev->atr[i] = inb(REG_BUF_DATA(iobase)); |
| 803 | } |
| 804 | /* Deactivate T_Active flags */ |
| 805 | DEBUGP(4, dev, "Deactivate T_Active flags\n"); |
| 806 | dev->flags1 = 0x01; |
| 807 | xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| 808 | |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 809 | /* atr is present (which doesn't mean it's valid) */ |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 810 | set_bit(IS_ATR_PRESENT, &dev->flags); |
| 811 | if (dev->atr[0] == 0x03) |
| 812 | str_invert_revert(dev->atr, dev->atr_len); |
| 813 | atrc = parse_atr(dev); |
| 814 | if (atrc == 0) { /* atr invalid */ |
| 815 | dev->mdelay = 0; |
| 816 | dev->mstate = M_BAD_CARD; |
| 817 | } else { |
| 818 | dev->mdelay = T_50MSEC; |
| 819 | dev->mstate = M_ATR_PRESENT; |
| 820 | set_bit(IS_ATR_VALID, &dev->flags); |
| 821 | } |
| 822 | |
| 823 | if (test_bit(IS_ATR_VALID, &dev->flags) == 1) { |
| 824 | DEBUGP(4, dev, "monitor_card: ATR valid\n"); |
| 825 | /* if ta1 == 0x11, no PPS necessary (default values) */ |
| 826 | /* do not do PPS with multi protocol cards */ |
| 827 | if ((test_bit(IS_AUTOPPS_ACT, &dev->flags) == 0) && |
| 828 | (dev->ta1 != 0x11) && |
| 829 | !(test_bit(IS_ANY_T0, &dev->flags) && |
| 830 | test_bit(IS_ANY_T1, &dev->flags))) { |
| 831 | DEBUGP(4, dev, "Perform AUTOPPS\n"); |
| 832 | set_bit(IS_AUTOPPS_ACT, &dev->flags); |
Alan Cox | 644e6e4 | 2011-02-01 15:46:05 +0000 | [diff] [blame] | 833 | ptsreq.protocol = (0x01 << dev->proto); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 834 | ptsreq.flags = 0x01; |
| 835 | ptsreq.pts1 = 0x00; |
| 836 | ptsreq.pts2 = 0x00; |
| 837 | ptsreq.pts3 = 0x00; |
| 838 | if (set_protocol(dev, &ptsreq) == 0) { |
| 839 | DEBUGP(4, dev, "AUTOPPS ret SUCC\n"); |
| 840 | clear_bit(IS_AUTOPPS_ACT, &dev->flags); |
| 841 | wake_up_interruptible(&dev->atrq); |
| 842 | } else { |
| 843 | DEBUGP(4, dev, "AUTOPPS failed: " |
| 844 | "repower using defaults\n"); |
| 845 | /* prepare for repowering */ |
| 846 | clear_bit(IS_ATR_PRESENT, &dev->flags); |
| 847 | clear_bit(IS_ATR_VALID, &dev->flags); |
| 848 | dev->rlen = |
| 849 | dev->rpos = |
| 850 | dev->atr_csum = |
| 851 | dev->atr_len_retry = dev->cwarn = 0; |
| 852 | dev->mstate = M_FETCH_ATR; |
| 853 | |
| 854 | dev->mdelay = T_50MSEC; |
| 855 | } |
| 856 | } else { |
| 857 | /* for cards which use slightly different |
| 858 | * params (extra guard time) */ |
| 859 | set_cardparameter(dev); |
| 860 | if (test_bit(IS_AUTOPPS_ACT, &dev->flags) == 1) |
| 861 | DEBUGP(4, dev, "AUTOPPS already active " |
| 862 | "2nd try:use default values\n"); |
| 863 | if (dev->ta1 == 0x11) |
| 864 | DEBUGP(4, dev, "No AUTOPPS necessary " |
| 865 | "TA(1)==0x11\n"); |
| 866 | if (test_bit(IS_ANY_T0, &dev->flags) |
| 867 | && test_bit(IS_ANY_T1, &dev->flags)) |
| 868 | DEBUGP(4, dev, "Do NOT perform AUTOPPS " |
| 869 | "with multiprotocol cards\n"); |
| 870 | clear_bit(IS_AUTOPPS_ACT, &dev->flags); |
| 871 | wake_up_interruptible(&dev->atrq); |
| 872 | } |
| 873 | } else { |
| 874 | DEBUGP(4, dev, "ATR invalid\n"); |
| 875 | wake_up_interruptible(&dev->atrq); |
| 876 | } |
| 877 | break; |
| 878 | case M_BAD_CARD: |
| 879 | DEBUGP(4, dev, "M_BAD_CARD\n"); |
| 880 | /* slow down warning, but prompt immediately after insertion */ |
| 881 | if (dev->cwarn == 0 || dev->cwarn == 10) { |
| 882 | set_bit(IS_BAD_CARD, &dev->flags); |
Dominik Brodowski | ded6a1a | 2010-03-20 19:35:12 +0100 | [diff] [blame] | 883 | dev_warn(&dev->p_dev->dev, MODULE_NAME ": "); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 884 | if (test_bit(IS_BAD_CSUM, &dev->flags)) { |
| 885 | DEBUGP(4, dev, "ATR checksum (0x%.2x, should " |
| 886 | "be zero) failed\n", dev->atr_csum); |
| 887 | } |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame] | 888 | #ifdef CM4000_DEBUG |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 889 | else if (test_bit(IS_BAD_LENGTH, &dev->flags)) { |
| 890 | DEBUGP(4, dev, "ATR length error\n"); |
| 891 | } else { |
| 892 | DEBUGP(4, dev, "card damaged or wrong way " |
| 893 | "inserted\n"); |
| 894 | } |
| 895 | #endif |
| 896 | dev->cwarn = 0; |
| 897 | wake_up_interruptible(&dev->atrq); /* wake open */ |
| 898 | } |
| 899 | dev->cwarn++; |
| 900 | dev->mdelay = T_100MSEC; |
| 901 | dev->mstate = M_FETCH_ATR; |
| 902 | break; |
| 903 | default: |
| 904 | DEBUGP(7, dev, "Unknown action\n"); |
| 905 | break; /* nothing */ |
| 906 | } |
| 907 | |
| 908 | release_io: |
| 909 | DEBUGP(7, dev, "release_io\n"); |
| 910 | clear_bit(LOCK_IO, &dev->flags); |
| 911 | wake_up_interruptible(&dev->ioq); /* whoever needs IO */ |
| 912 | |
| 913 | return_with_timer: |
| 914 | DEBUGP(7, dev, "<- monitor_card (returns with timer)\n"); |
Jiri Slaby | 40565f1 | 2007-02-12 00:52:31 -0800 | [diff] [blame] | 915 | mod_timer(&dev->timer, jiffies + dev->mdelay); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 916 | clear_bit(LOCK_MONITOR, &dev->flags); |
| 917 | } |
| 918 | |
| 919 | /* Interface to userland (file_operations) */ |
| 920 | |
| 921 | static ssize_t cmm_read(struct file *filp, __user char *buf, size_t count, |
| 922 | loff_t *ppos) |
| 923 | { |
| 924 | struct cm4000_dev *dev = filp->private_data; |
Dominik Brodowski | 9a017a9 | 2010-07-24 15:58:54 +0200 | [diff] [blame] | 925 | unsigned int iobase = dev->p_dev->resource[0]->start; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 926 | ssize_t rc; |
| 927 | int i, j, k; |
| 928 | |
| 929 | DEBUGP(2, dev, "-> cmm_read(%s,%d)\n", current->comm, current->pid); |
| 930 | |
| 931 | if (count == 0) /* according to manpage */ |
| 932 | return 0; |
| 933 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 934 | if (!pcmcia_dev_present(dev->p_dev) || /* device removed */ |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 935 | test_bit(IS_CMM_ABSENT, &dev->flags)) |
| 936 | return -ENODEV; |
| 937 | |
| 938 | if (test_bit(IS_BAD_CSUM, &dev->flags)) |
| 939 | return -EIO; |
| 940 | |
| 941 | /* also see the note about this in cmm_write */ |
| 942 | if (wait_event_interruptible |
| 943 | (dev->atrq, |
| 944 | ((filp->f_flags & O_NONBLOCK) |
| 945 | || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) { |
| 946 | if (filp->f_flags & O_NONBLOCK) |
| 947 | return -EAGAIN; |
| 948 | return -ERESTARTSYS; |
| 949 | } |
| 950 | |
| 951 | if (test_bit(IS_ATR_VALID, &dev->flags) == 0) |
| 952 | return -EIO; |
| 953 | |
| 954 | /* this one implements blocking IO */ |
| 955 | if (wait_event_interruptible |
| 956 | (dev->readq, |
| 957 | ((filp->f_flags & O_NONBLOCK) || (dev->rpos < dev->rlen)))) { |
| 958 | if (filp->f_flags & O_NONBLOCK) |
| 959 | return -EAGAIN; |
| 960 | return -ERESTARTSYS; |
| 961 | } |
| 962 | |
| 963 | /* lock io */ |
| 964 | if (wait_event_interruptible |
| 965 | (dev->ioq, |
| 966 | ((filp->f_flags & O_NONBLOCK) |
| 967 | || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) { |
| 968 | if (filp->f_flags & O_NONBLOCK) |
| 969 | return -EAGAIN; |
| 970 | return -ERESTARTSYS; |
| 971 | } |
| 972 | |
| 973 | rc = 0; |
| 974 | dev->flags0 = inb(REG_FLAGS0(iobase)); |
| 975 | if ((dev->flags0 & 1) == 0 /* no smartcard inserted */ |
| 976 | || dev->flags0 == 0xff) { /* no cardman inserted */ |
| 977 | clear_bit(IS_ATR_VALID, &dev->flags); |
| 978 | if (dev->flags0 & 1) { |
| 979 | set_bit(IS_CMM_ABSENT, &dev->flags); |
| 980 | rc = -ENODEV; |
Nicolas Kaiser | 20fffee8 | 2010-10-22 18:10:24 +0200 | [diff] [blame] | 981 | } else { |
| 982 | rc = -EIO; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 983 | } |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 984 | goto release_io; |
| 985 | } |
| 986 | |
| 987 | DEBUGP(4, dev, "begin read answer\n"); |
| 988 | j = min(count, (size_t)(dev->rlen - dev->rpos)); |
| 989 | k = dev->rpos; |
| 990 | if (k + j > 255) |
| 991 | j = 256 - k; |
| 992 | DEBUGP(4, dev, "read1 j=%d\n", j); |
| 993 | for (i = 0; i < j; i++) { |
| 994 | xoutb(k++, REG_BUF_ADDR(iobase)); |
| 995 | dev->rbuf[i] = xinb(REG_BUF_DATA(iobase)); |
| 996 | } |
| 997 | j = min(count, (size_t)(dev->rlen - dev->rpos)); |
| 998 | if (k + j > 255) { |
| 999 | DEBUGP(4, dev, "read2 j=%d\n", j); |
| 1000 | dev->flags1 |= 0x10; /* MSB buf addr set */ |
| 1001 | xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| 1002 | for (; i < j; i++) { |
| 1003 | xoutb(k++, REG_BUF_ADDR(iobase)); |
| 1004 | dev->rbuf[i] = xinb(REG_BUF_DATA(iobase)); |
| 1005 | } |
| 1006 | } |
| 1007 | |
Roel Kluin | 470967d | 2009-09-21 17:03:54 -0700 | [diff] [blame] | 1008 | if (dev->proto == 0 && count > dev->rlen - dev->rpos && i) { |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1009 | DEBUGP(4, dev, "T=0 and count > buffer\n"); |
| 1010 | dev->rbuf[i] = dev->rbuf[i - 1]; |
| 1011 | dev->rbuf[i - 1] = dev->procbyte; |
| 1012 | j++; |
| 1013 | } |
| 1014 | count = j; |
| 1015 | |
| 1016 | dev->rpos = dev->rlen + 1; |
| 1017 | |
| 1018 | /* Clear T1Active */ |
| 1019 | DEBUGP(4, dev, "Clear T1Active\n"); |
| 1020 | dev->flags1 &= 0xdf; |
| 1021 | xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| 1022 | |
| 1023 | xoutb(0, REG_FLAGS1(iobase)); /* clear detectCMM */ |
| 1024 | /* last check before exit */ |
Dan Carpenter | 07a7141 | 2010-04-18 22:07:33 +0300 | [diff] [blame] | 1025 | if (!io_detect_cm4000(iobase, dev)) { |
| 1026 | rc = -ENODEV; |
| 1027 | goto release_io; |
| 1028 | } |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1029 | |
| 1030 | if (test_bit(IS_INVREV, &dev->flags) && count > 0) |
| 1031 | str_invert_revert(dev->rbuf, count); |
| 1032 | |
| 1033 | if (copy_to_user(buf, dev->rbuf, count)) |
Dan Carpenter | 07a7141 | 2010-04-18 22:07:33 +0300 | [diff] [blame] | 1034 | rc = -EFAULT; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1035 | |
| 1036 | release_io: |
| 1037 | clear_bit(LOCK_IO, &dev->flags); |
| 1038 | wake_up_interruptible(&dev->ioq); |
| 1039 | |
Alexey Dobriyan | 5b5e092 | 2017-02-27 14:30:02 -0800 | [diff] [blame] | 1040 | DEBUGP(2, dev, "<- cmm_read returns: rc = %zi\n", |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1041 | (rc < 0 ? rc : count)); |
| 1042 | return rc < 0 ? rc : count; |
| 1043 | } |
| 1044 | |
| 1045 | static ssize_t cmm_write(struct file *filp, const char __user *buf, |
| 1046 | size_t count, loff_t *ppos) |
| 1047 | { |
H Hartley Sweeten | c6be9c5 | 2010-01-08 11:30:13 -0700 | [diff] [blame] | 1048 | struct cm4000_dev *dev = filp->private_data; |
Dominik Brodowski | 9a017a9 | 2010-07-24 15:58:54 +0200 | [diff] [blame] | 1049 | unsigned int iobase = dev->p_dev->resource[0]->start; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1050 | unsigned short s; |
| 1051 | unsigned char tmp; |
| 1052 | unsigned char infolen; |
| 1053 | unsigned char sendT0; |
| 1054 | unsigned short nsend; |
| 1055 | unsigned short nr; |
| 1056 | ssize_t rc; |
| 1057 | int i; |
| 1058 | |
| 1059 | DEBUGP(2, dev, "-> cmm_write(%s,%d)\n", current->comm, current->pid); |
| 1060 | |
| 1061 | if (count == 0) /* according to manpage */ |
| 1062 | return 0; |
| 1063 | |
| 1064 | if (dev->proto == 0 && count < 4) { |
| 1065 | /* T0 must have at least 4 bytes */ |
| 1066 | DEBUGP(4, dev, "T0 short write\n"); |
| 1067 | return -EIO; |
| 1068 | } |
| 1069 | |
| 1070 | nr = count & 0x1ff; /* max bytes to write */ |
| 1071 | |
| 1072 | sendT0 = dev->proto ? 0 : nr > 5 ? 0x08 : 0; |
| 1073 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 1074 | if (!pcmcia_dev_present(dev->p_dev) || /* device removed */ |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1075 | test_bit(IS_CMM_ABSENT, &dev->flags)) |
| 1076 | return -ENODEV; |
| 1077 | |
| 1078 | if (test_bit(IS_BAD_CSUM, &dev->flags)) { |
| 1079 | DEBUGP(4, dev, "bad csum\n"); |
| 1080 | return -EIO; |
| 1081 | } |
| 1082 | |
| 1083 | /* |
| 1084 | * wait for atr to become valid. |
| 1085 | * 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] | 1086 | * 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] | 1087 | * atr-queue. if *then* the monitor detects atr valid, it will wake up |
| 1088 | * any process on the atr-queue, *but* since we have been interrupted, |
| 1089 | * we do not yet sleep on this queue. this would result in a missed |
| 1090 | * wake_up and the calling process would sleep forever (until |
| 1091 | * interrupted). also, do *not* restore_flags before sleep_on, because |
| 1092 | * this could result in the same situation! |
| 1093 | */ |
| 1094 | if (wait_event_interruptible |
| 1095 | (dev->atrq, |
| 1096 | ((filp->f_flags & O_NONBLOCK) |
| 1097 | || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) != 0)))) { |
| 1098 | if (filp->f_flags & O_NONBLOCK) |
| 1099 | return -EAGAIN; |
| 1100 | return -ERESTARTSYS; |
| 1101 | } |
| 1102 | |
| 1103 | if (test_bit(IS_ATR_VALID, &dev->flags) == 0) { /* invalid atr */ |
| 1104 | DEBUGP(4, dev, "invalid ATR\n"); |
| 1105 | return -EIO; |
| 1106 | } |
| 1107 | |
| 1108 | /* lock io */ |
| 1109 | if (wait_event_interruptible |
| 1110 | (dev->ioq, |
| 1111 | ((filp->f_flags & O_NONBLOCK) |
| 1112 | || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) == 0)))) { |
| 1113 | if (filp->f_flags & O_NONBLOCK) |
| 1114 | return -EAGAIN; |
| 1115 | return -ERESTARTSYS; |
| 1116 | } |
| 1117 | |
| 1118 | if (copy_from_user(dev->sbuf, buf, ((count > 512) ? 512 : count))) |
| 1119 | return -EFAULT; |
| 1120 | |
| 1121 | rc = 0; |
| 1122 | dev->flags0 = inb(REG_FLAGS0(iobase)); |
| 1123 | if ((dev->flags0 & 1) == 0 /* no smartcard inserted */ |
| 1124 | || dev->flags0 == 0xff) { /* no cardman inserted */ |
| 1125 | clear_bit(IS_ATR_VALID, &dev->flags); |
| 1126 | if (dev->flags0 & 1) { |
| 1127 | set_bit(IS_CMM_ABSENT, &dev->flags); |
| 1128 | rc = -ENODEV; |
| 1129 | } else { |
| 1130 | DEBUGP(4, dev, "IO error\n"); |
| 1131 | rc = -EIO; |
| 1132 | } |
| 1133 | goto release_io; |
| 1134 | } |
| 1135 | |
| 1136 | xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */ |
| 1137 | |
| 1138 | if (!io_detect_cm4000(iobase, dev)) { |
| 1139 | rc = -ENODEV; |
| 1140 | goto release_io; |
| 1141 | } |
| 1142 | |
| 1143 | /* reflect T=0 send/read mode in flags1 */ |
| 1144 | dev->flags1 |= (sendT0); |
| 1145 | |
| 1146 | set_cardparameter(dev); |
| 1147 | |
| 1148 | /* dummy read, reset flag procedure received */ |
| 1149 | tmp = inb(REG_FLAGS1(iobase)); |
| 1150 | |
| 1151 | dev->flags1 = 0x20 /* T_Active */ |
| 1152 | | (sendT0) |
| 1153 | | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0)/* inverse parity */ |
| 1154 | | (((dev->baudv - 1) & 0x0100) >> 8); /* MSB-Baud */ |
| 1155 | DEBUGP(1, dev, "set dev->flags1 = 0x%.2x\n", dev->flags1); |
| 1156 | xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| 1157 | |
| 1158 | /* xmit data */ |
| 1159 | DEBUGP(4, dev, "Xmit data\n"); |
| 1160 | for (i = 0; i < nr; i++) { |
| 1161 | if (i >= 256) { |
| 1162 | dev->flags1 = 0x20 /* T_Active */ |
| 1163 | | (sendT0) /* SendT0 */ |
| 1164 | /* inverse parity: */ |
| 1165 | | (test_bit(IS_INVREV, &dev->flags) ? 2 : 0) |
| 1166 | | (((dev->baudv - 1) & 0x0100) >> 8) /* MSB-Baud */ |
| 1167 | | 0x10; /* set address high */ |
| 1168 | DEBUGP(4, dev, "dev->flags = 0x%.2x - set address " |
| 1169 | "high\n", dev->flags1); |
| 1170 | xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| 1171 | } |
| 1172 | if (test_bit(IS_INVREV, &dev->flags)) { |
| 1173 | DEBUGP(4, dev, "Apply inverse convention for 0x%.2x " |
| 1174 | "-> 0x%.2x\n", (unsigned char)dev->sbuf[i], |
| 1175 | invert_revert(dev->sbuf[i])); |
| 1176 | xoutb(i, REG_BUF_ADDR(iobase)); |
| 1177 | xoutb(invert_revert(dev->sbuf[i]), |
| 1178 | REG_BUF_DATA(iobase)); |
| 1179 | } else { |
| 1180 | xoutb(i, REG_BUF_ADDR(iobase)); |
| 1181 | xoutb(dev->sbuf[i], REG_BUF_DATA(iobase)); |
| 1182 | } |
| 1183 | } |
| 1184 | DEBUGP(4, dev, "Xmit done\n"); |
| 1185 | |
| 1186 | if (dev->proto == 0) { |
| 1187 | /* T=0 proto: 0 byte reply */ |
| 1188 | if (nr == 4) { |
| 1189 | DEBUGP(4, dev, "T=0 assumes 0 byte reply\n"); |
| 1190 | xoutb(i, REG_BUF_ADDR(iobase)); |
| 1191 | if (test_bit(IS_INVREV, &dev->flags)) |
| 1192 | xoutb(0xff, REG_BUF_DATA(iobase)); |
| 1193 | else |
| 1194 | xoutb(0x00, REG_BUF_DATA(iobase)); |
| 1195 | } |
| 1196 | |
| 1197 | /* numSendBytes */ |
| 1198 | if (sendT0) |
| 1199 | nsend = nr; |
| 1200 | else { |
| 1201 | if (nr == 4) |
| 1202 | nsend = 5; |
| 1203 | else { |
| 1204 | nsend = 5 + (unsigned char)dev->sbuf[4]; |
| 1205 | if (dev->sbuf[4] == 0) |
| 1206 | nsend += 0x100; |
| 1207 | } |
| 1208 | } |
| 1209 | } else |
| 1210 | nsend = nr; |
| 1211 | |
| 1212 | /* T0: output procedure byte */ |
| 1213 | if (test_bit(IS_INVREV, &dev->flags)) { |
| 1214 | DEBUGP(4, dev, "T=0 set Procedure byte (inverse-reverse) " |
| 1215 | "0x%.2x\n", invert_revert(dev->sbuf[1])); |
| 1216 | xoutb(invert_revert(dev->sbuf[1]), REG_NUM_BYTES(iobase)); |
| 1217 | } else { |
| 1218 | DEBUGP(4, dev, "T=0 set Procedure byte 0x%.2x\n", dev->sbuf[1]); |
| 1219 | xoutb(dev->sbuf[1], REG_NUM_BYTES(iobase)); |
| 1220 | } |
| 1221 | |
| 1222 | DEBUGP(1, dev, "set NumSendBytes = 0x%.2x\n", |
| 1223 | (unsigned char)(nsend & 0xff)); |
| 1224 | xoutb((unsigned char)(nsend & 0xff), REG_NUM_SEND(iobase)); |
| 1225 | |
| 1226 | DEBUGP(1, dev, "Trigger CARDMAN CONTROLLER (0x%.2x)\n", |
| 1227 | 0x40 /* SM_Active */ |
| 1228 | | (dev->flags0 & 2 ? 0 : 4) /* power on if needed */ |
| 1229 | |(dev->proto ? 0x10 : 0x08) /* T=1/T=0 */ |
| 1230 | |(nsend & 0x100) >> 8 /* MSB numSendBytes */ ); |
| 1231 | xoutb(0x40 /* SM_Active */ |
| 1232 | | (dev->flags0 & 2 ? 0 : 4) /* power on if needed */ |
| 1233 | |(dev->proto ? 0x10 : 0x08) /* T=1/T=0 */ |
| 1234 | |(nsend & 0x100) >> 8, /* MSB numSendBytes */ |
| 1235 | REG_FLAGS0(iobase)); |
| 1236 | |
| 1237 | /* wait for xmit done */ |
| 1238 | if (dev->proto == 1) { |
| 1239 | DEBUGP(4, dev, "Wait for xmit done\n"); |
| 1240 | for (i = 0; i < 1000; i++) { |
| 1241 | if (inb(REG_FLAGS0(iobase)) & 0x08) |
| 1242 | break; |
| 1243 | msleep_interruptible(10); |
| 1244 | } |
| 1245 | if (i == 1000) { |
| 1246 | DEBUGP(4, dev, "timeout waiting for xmit done\n"); |
| 1247 | rc = -EIO; |
| 1248 | goto release_io; |
| 1249 | } |
| 1250 | } |
| 1251 | |
| 1252 | /* T=1: wait for infoLen */ |
| 1253 | |
| 1254 | infolen = 0; |
| 1255 | if (dev->proto) { |
| 1256 | /* wait until infoLen is valid */ |
| 1257 | for (i = 0; i < 6000; i++) { /* max waiting time of 1 min */ |
| 1258 | io_read_num_rec_bytes(iobase, &s); |
| 1259 | if (s >= 3) { |
| 1260 | infolen = inb(REG_FLAGS1(iobase)); |
| 1261 | DEBUGP(4, dev, "infolen=%d\n", infolen); |
| 1262 | break; |
| 1263 | } |
| 1264 | msleep_interruptible(10); |
| 1265 | } |
| 1266 | if (i == 6000) { |
| 1267 | DEBUGP(4, dev, "timeout waiting for infoLen\n"); |
| 1268 | rc = -EIO; |
| 1269 | goto release_io; |
| 1270 | } |
| 1271 | } else |
| 1272 | clear_bit(IS_PROCBYTE_PRESENT, &dev->flags); |
| 1273 | |
| 1274 | /* numRecBytes | bit9 of numRecytes */ |
| 1275 | io_read_num_rec_bytes(iobase, &dev->rlen); |
| 1276 | for (i = 0; i < 600; i++) { /* max waiting time of 2 sec */ |
| 1277 | if (dev->proto) { |
| 1278 | if (dev->rlen >= infolen + 4) |
| 1279 | break; |
| 1280 | } |
| 1281 | msleep_interruptible(10); |
| 1282 | /* numRecBytes | bit9 of numRecytes */ |
| 1283 | io_read_num_rec_bytes(iobase, &s); |
| 1284 | if (s > dev->rlen) { |
| 1285 | DEBUGP(1, dev, "NumRecBytes inc (reset timeout)\n"); |
| 1286 | i = 0; /* reset timeout */ |
| 1287 | dev->rlen = s; |
| 1288 | } |
| 1289 | /* T=0: we are done when numRecBytes doesn't |
| 1290 | * increment any more and NoProcedureByte |
| 1291 | * is set and numRecBytes == bytes sent + 6 |
| 1292 | * (header bytes + data + 1 for sw2) |
| 1293 | * except when the card replies an error |
| 1294 | * which means, no data will be sent back. |
| 1295 | */ |
| 1296 | else if (dev->proto == 0) { |
| 1297 | if ((inb(REG_BUF_ADDR(iobase)) & 0x80)) { |
| 1298 | /* no procedure byte received since last read */ |
| 1299 | DEBUGP(1, dev, "NoProcedure byte set\n"); |
| 1300 | /* i=0; */ |
| 1301 | } else { |
| 1302 | /* procedure byte received since last read */ |
| 1303 | DEBUGP(1, dev, "NoProcedure byte unset " |
| 1304 | "(reset timeout)\n"); |
| 1305 | dev->procbyte = inb(REG_FLAGS1(iobase)); |
| 1306 | DEBUGP(1, dev, "Read procedure byte 0x%.2x\n", |
| 1307 | dev->procbyte); |
| 1308 | i = 0; /* resettimeout */ |
| 1309 | } |
| 1310 | if (inb(REG_FLAGS0(iobase)) & 0x08) { |
| 1311 | DEBUGP(1, dev, "T0Done flag (read reply)\n"); |
| 1312 | break; |
| 1313 | } |
| 1314 | } |
| 1315 | if (dev->proto) |
| 1316 | infolen = inb(REG_FLAGS1(iobase)); |
| 1317 | } |
| 1318 | if (i == 600) { |
| 1319 | DEBUGP(1, dev, "timeout waiting for numRecBytes\n"); |
| 1320 | rc = -EIO; |
| 1321 | goto release_io; |
| 1322 | } else { |
| 1323 | if (dev->proto == 0) { |
| 1324 | DEBUGP(1, dev, "Wait for T0Done bit to be set\n"); |
| 1325 | for (i = 0; i < 1000; i++) { |
| 1326 | if (inb(REG_FLAGS0(iobase)) & 0x08) |
| 1327 | break; |
| 1328 | msleep_interruptible(10); |
| 1329 | } |
| 1330 | if (i == 1000) { |
| 1331 | DEBUGP(1, dev, "timeout waiting for T0Done\n"); |
| 1332 | rc = -EIO; |
| 1333 | goto release_io; |
| 1334 | } |
| 1335 | |
| 1336 | dev->procbyte = inb(REG_FLAGS1(iobase)); |
| 1337 | DEBUGP(4, dev, "Read procedure byte 0x%.2x\n", |
| 1338 | dev->procbyte); |
| 1339 | |
| 1340 | io_read_num_rec_bytes(iobase, &dev->rlen); |
| 1341 | DEBUGP(4, dev, "Read NumRecBytes = %i\n", dev->rlen); |
| 1342 | |
| 1343 | } |
| 1344 | } |
| 1345 | /* T=1: read offset=zero, T=0: read offset=after challenge */ |
| 1346 | dev->rpos = dev->proto ? 0 : nr == 4 ? 5 : nr > dev->rlen ? 5 : nr; |
| 1347 | DEBUGP(4, dev, "dev->rlen = %i, dev->rpos = %i, nr = %i\n", |
| 1348 | dev->rlen, dev->rpos, nr); |
| 1349 | |
| 1350 | release_io: |
| 1351 | DEBUGP(4, dev, "Reset SM\n"); |
| 1352 | xoutb(0x80, REG_FLAGS0(iobase)); /* reset SM */ |
| 1353 | |
| 1354 | if (rc < 0) { |
| 1355 | DEBUGP(4, dev, "Write failed but clear T_Active\n"); |
| 1356 | dev->flags1 &= 0xdf; |
| 1357 | xoutb(dev->flags1, REG_FLAGS1(iobase)); |
| 1358 | } |
| 1359 | |
| 1360 | clear_bit(LOCK_IO, &dev->flags); |
| 1361 | wake_up_interruptible(&dev->ioq); |
| 1362 | wake_up_interruptible(&dev->readq); /* tell read we have data */ |
| 1363 | |
| 1364 | /* ITSEC E2: clear write buffer */ |
| 1365 | memset((char *)dev->sbuf, 0, 512); |
| 1366 | |
| 1367 | /* return error or actually written bytes */ |
| 1368 | DEBUGP(2, dev, "<- cmm_write\n"); |
| 1369 | return rc < 0 ? rc : nr; |
| 1370 | } |
| 1371 | |
| 1372 | static void start_monitor(struct cm4000_dev *dev) |
| 1373 | { |
| 1374 | DEBUGP(3, dev, "-> start_monitor\n"); |
| 1375 | if (!dev->monitor_running) { |
| 1376 | DEBUGP(5, dev, "create, init and add timer\n"); |
Jiri Slaby | 40565f1 | 2007-02-12 00:52:31 -0800 | [diff] [blame] | 1377 | setup_timer(&dev->timer, monitor_card, (unsigned long)dev); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1378 | dev->monitor_running = 1; |
Jiri Slaby | 40565f1 | 2007-02-12 00:52:31 -0800 | [diff] [blame] | 1379 | mod_timer(&dev->timer, jiffies); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1380 | } else |
| 1381 | DEBUGP(5, dev, "monitor already running\n"); |
| 1382 | DEBUGP(3, dev, "<- start_monitor\n"); |
| 1383 | } |
| 1384 | |
| 1385 | static void stop_monitor(struct cm4000_dev *dev) |
| 1386 | { |
| 1387 | DEBUGP(3, dev, "-> stop_monitor\n"); |
| 1388 | if (dev->monitor_running) { |
| 1389 | DEBUGP(5, dev, "stopping monitor\n"); |
| 1390 | terminate_monitor(dev); |
| 1391 | /* reset monitor SM */ |
| 1392 | clear_bit(IS_ATR_VALID, &dev->flags); |
| 1393 | clear_bit(IS_ATR_PRESENT, &dev->flags); |
| 1394 | } else |
| 1395 | DEBUGP(5, dev, "monitor already stopped\n"); |
| 1396 | DEBUGP(3, dev, "<- stop_monitor\n"); |
| 1397 | } |
| 1398 | |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1399 | 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] | 1400 | { |
| 1401 | struct cm4000_dev *dev = filp->private_data; |
Dominik Brodowski | 9a017a9 | 2010-07-24 15:58:54 +0200 | [diff] [blame] | 1402 | unsigned int iobase = dev->p_dev->resource[0]->start; |
Al Viro | 496ad9a | 2013-01-23 17:07:38 -0500 | [diff] [blame] | 1403 | struct inode *inode = file_inode(filp); |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 1404 | struct pcmcia_device *link; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1405 | int size; |
| 1406 | int rc; |
Al Viro | c4aa02e | 2005-12-15 09:17:55 +0000 | [diff] [blame] | 1407 | void __user *argp = (void __user *)arg; |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame] | 1408 | #ifdef CM4000_DEBUG |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1409 | char *ioctl_names[CM_IOC_MAXNR + 1] = { |
| 1410 | [_IOC_NR(CM_IOCGSTATUS)] "CM_IOCGSTATUS", |
| 1411 | [_IOC_NR(CM_IOCGATR)] "CM_IOCGATR", |
| 1412 | [_IOC_NR(CM_IOCARDOFF)] "CM_IOCARDOFF", |
| 1413 | [_IOC_NR(CM_IOCSPTS)] "CM_IOCSPTS", |
| 1414 | [_IOC_NR(CM_IOSDBGLVL)] "CM4000_DBGLVL", |
| 1415 | }; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1416 | DEBUGP(3, dev, "cmm_ioctl(device=%d.%d) %s\n", imajor(inode), |
| 1417 | iminor(inode), ioctl_names[_IOC_NR(cmd)]); |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame] | 1418 | #endif |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1419 | |
Arnd Bergmann | 613655f | 2010-06-02 14:28:52 +0200 | [diff] [blame] | 1420 | mutex_lock(&cmm_mutex); |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1421 | rc = -ENODEV; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1422 | link = dev_table[iminor(inode)]; |
Dominik Brodowski | 9940ec3 | 2006-03-05 11:04:33 +0100 | [diff] [blame] | 1423 | if (!pcmcia_dev_present(link)) { |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1424 | DEBUGP(4, dev, "DEV_OK false\n"); |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1425 | goto out; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1426 | } |
| 1427 | |
| 1428 | if (test_bit(IS_CMM_ABSENT, &dev->flags)) { |
| 1429 | DEBUGP(4, dev, "CMM_ABSENT flag set\n"); |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1430 | goto out; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1431 | } |
Dominik Brodowski | d93c768 | 2008-07-15 20:11:21 +0200 | [diff] [blame] | 1432 | rc = -EINVAL; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1433 | |
| 1434 | if (_IOC_TYPE(cmd) != CM_IOC_MAGIC) { |
| 1435 | DEBUGP(4, dev, "ioctype mismatch\n"); |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1436 | goto out; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1437 | } |
| 1438 | if (_IOC_NR(cmd) > CM_IOC_MAXNR) { |
| 1439 | DEBUGP(4, dev, "iocnr mismatch\n"); |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1440 | goto out; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1441 | } |
| 1442 | size = _IOC_SIZE(cmd); |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1443 | rc = -EFAULT; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1444 | DEBUGP(4, dev, "iocdir=%.4x iocr=%.4x iocw=%.4x iocsize=%d cmd=%.4x\n", |
| 1445 | _IOC_DIR(cmd), _IOC_READ, _IOC_WRITE, size, cmd); |
| 1446 | |
| 1447 | if (_IOC_DIR(cmd) & _IOC_READ) { |
Al Viro | c4aa02e | 2005-12-15 09:17:55 +0000 | [diff] [blame] | 1448 | if (!access_ok(VERIFY_WRITE, argp, size)) |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1449 | goto out; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1450 | } |
| 1451 | if (_IOC_DIR(cmd) & _IOC_WRITE) { |
Al Viro | c4aa02e | 2005-12-15 09:17:55 +0000 | [diff] [blame] | 1452 | if (!access_ok(VERIFY_READ, argp, size)) |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1453 | goto out; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1454 | } |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1455 | rc = 0; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1456 | |
| 1457 | switch (cmd) { |
| 1458 | case CM_IOCGSTATUS: |
| 1459 | DEBUGP(4, dev, " ... in CM_IOCGSTATUS\n"); |
| 1460 | { |
| 1461 | int status; |
| 1462 | |
| 1463 | /* clear other bits, but leave inserted & powered as |
| 1464 | * they are */ |
| 1465 | status = dev->flags0 & 3; |
| 1466 | if (test_bit(IS_ATR_PRESENT, &dev->flags)) |
| 1467 | status |= CM_ATR_PRESENT; |
| 1468 | if (test_bit(IS_ATR_VALID, &dev->flags)) |
| 1469 | status |= CM_ATR_VALID; |
| 1470 | if (test_bit(IS_CMM_ABSENT, &dev->flags)) |
| 1471 | status |= CM_NO_READER; |
| 1472 | if (test_bit(IS_BAD_CARD, &dev->flags)) |
| 1473 | status |= CM_BAD_CARD; |
Al Viro | c4aa02e | 2005-12-15 09:17:55 +0000 | [diff] [blame] | 1474 | if (copy_to_user(argp, &status, sizeof(int))) |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1475 | rc = -EFAULT; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1476 | } |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1477 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1478 | case CM_IOCGATR: |
| 1479 | DEBUGP(4, dev, "... in CM_IOCGATR\n"); |
| 1480 | { |
Al Viro | c4aa02e | 2005-12-15 09:17:55 +0000 | [diff] [blame] | 1481 | struct atreq __user *atreq = argp; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1482 | int tmp; |
| 1483 | /* allow nonblocking io and being interrupted */ |
| 1484 | if (wait_event_interruptible |
| 1485 | (dev->atrq, |
| 1486 | ((filp->f_flags & O_NONBLOCK) |
| 1487 | || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) |
| 1488 | != 0)))) { |
| 1489 | if (filp->f_flags & O_NONBLOCK) |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1490 | rc = -EAGAIN; |
| 1491 | else |
| 1492 | rc = -ERESTARTSYS; |
| 1493 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1494 | } |
| 1495 | |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1496 | rc = -EFAULT; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1497 | if (test_bit(IS_ATR_VALID, &dev->flags) == 0) { |
| 1498 | tmp = -1; |
| 1499 | if (copy_to_user(&(atreq->atr_len), &tmp, |
| 1500 | sizeof(int))) |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1501 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1502 | } else { |
| 1503 | if (copy_to_user(atreq->atr, dev->atr, |
| 1504 | dev->atr_len)) |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1505 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1506 | |
| 1507 | tmp = dev->atr_len; |
| 1508 | if (copy_to_user(&(atreq->atr_len), &tmp, sizeof(int))) |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1509 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1510 | } |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1511 | rc = 0; |
| 1512 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1513 | } |
| 1514 | case CM_IOCARDOFF: |
| 1515 | |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame] | 1516 | #ifdef CM4000_DEBUG |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1517 | DEBUGP(4, dev, "... in CM_IOCARDOFF\n"); |
| 1518 | if (dev->flags0 & 0x01) { |
| 1519 | DEBUGP(4, dev, " Card inserted\n"); |
| 1520 | } else { |
| 1521 | DEBUGP(2, dev, " No card inserted\n"); |
| 1522 | } |
| 1523 | if (dev->flags0 & 0x02) { |
| 1524 | DEBUGP(4, dev, " Card powered\n"); |
| 1525 | } else { |
| 1526 | DEBUGP(2, dev, " Card not powered\n"); |
| 1527 | } |
| 1528 | #endif |
| 1529 | |
| 1530 | /* is a card inserted and powered? */ |
| 1531 | if ((dev->flags0 & 0x01) && (dev->flags0 & 0x02)) { |
| 1532 | |
| 1533 | /* get IO lock */ |
| 1534 | if (wait_event_interruptible |
| 1535 | (dev->ioq, |
| 1536 | ((filp->f_flags & O_NONBLOCK) |
| 1537 | || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) |
| 1538 | == 0)))) { |
| 1539 | if (filp->f_flags & O_NONBLOCK) |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1540 | rc = -EAGAIN; |
| 1541 | else |
| 1542 | rc = -ERESTARTSYS; |
| 1543 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1544 | } |
| 1545 | /* Set Flags0 = 0x42 */ |
| 1546 | DEBUGP(4, dev, "Set Flags0=0x42 \n"); |
| 1547 | xoutb(0x42, REG_FLAGS0(iobase)); |
| 1548 | clear_bit(IS_ATR_PRESENT, &dev->flags); |
| 1549 | clear_bit(IS_ATR_VALID, &dev->flags); |
| 1550 | dev->mstate = M_CARDOFF; |
| 1551 | clear_bit(LOCK_IO, &dev->flags); |
| 1552 | if (wait_event_interruptible |
| 1553 | (dev->atrq, |
| 1554 | ((filp->f_flags & O_NONBLOCK) |
| 1555 | || (test_bit(IS_ATR_VALID, (void *)&dev->flags) != |
| 1556 | 0)))) { |
| 1557 | if (filp->f_flags & O_NONBLOCK) |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1558 | rc = -EAGAIN; |
| 1559 | else |
| 1560 | rc = -ERESTARTSYS; |
| 1561 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1562 | } |
| 1563 | } |
| 1564 | /* release lock */ |
| 1565 | clear_bit(LOCK_IO, &dev->flags); |
| 1566 | wake_up_interruptible(&dev->ioq); |
| 1567 | |
Jiri Slaby | 69ae59d | 2009-06-22 18:42:10 +0100 | [diff] [blame] | 1568 | rc = 0; |
| 1569 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1570 | case CM_IOCSPTS: |
| 1571 | { |
| 1572 | struct ptsreq krnptsreq; |
| 1573 | |
Al Viro | c4aa02e | 2005-12-15 09:17:55 +0000 | [diff] [blame] | 1574 | if (copy_from_user(&krnptsreq, argp, |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1575 | sizeof(struct ptsreq))) { |
| 1576 | rc = -EFAULT; |
| 1577 | break; |
| 1578 | } |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1579 | |
| 1580 | rc = 0; |
| 1581 | DEBUGP(4, dev, "... in CM_IOCSPTS\n"); |
| 1582 | /* wait for ATR to get valid */ |
| 1583 | if (wait_event_interruptible |
| 1584 | (dev->atrq, |
| 1585 | ((filp->f_flags & O_NONBLOCK) |
| 1586 | || (test_bit(IS_ATR_PRESENT, (void *)&dev->flags) |
| 1587 | != 0)))) { |
| 1588 | if (filp->f_flags & O_NONBLOCK) |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1589 | rc = -EAGAIN; |
| 1590 | else |
| 1591 | rc = -ERESTARTSYS; |
| 1592 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1593 | } |
| 1594 | /* get IO lock */ |
| 1595 | if (wait_event_interruptible |
| 1596 | (dev->ioq, |
| 1597 | ((filp->f_flags & O_NONBLOCK) |
| 1598 | || (test_and_set_bit(LOCK_IO, (void *)&dev->flags) |
| 1599 | == 0)))) { |
| 1600 | if (filp->f_flags & O_NONBLOCK) |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1601 | rc = -EAGAIN; |
| 1602 | else |
| 1603 | rc = -ERESTARTSYS; |
| 1604 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1605 | } |
| 1606 | |
| 1607 | if ((rc = set_protocol(dev, &krnptsreq)) != 0) { |
| 1608 | /* auto power_on again */ |
| 1609 | dev->mstate = M_FETCH_ATR; |
| 1610 | clear_bit(IS_ATR_VALID, &dev->flags); |
| 1611 | } |
| 1612 | /* release lock */ |
| 1613 | clear_bit(LOCK_IO, &dev->flags); |
| 1614 | wake_up_interruptible(&dev->ioq); |
| 1615 | |
| 1616 | } |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1617 | break; |
Dominik Brodowski | cbf624f | 2009-10-24 15:47:29 +0200 | [diff] [blame] | 1618 | #ifdef CM4000_DEBUG |
| 1619 | case CM_IOSDBGLVL: |
| 1620 | rc = -ENOTTY; |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1621 | break; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1622 | #endif |
| 1623 | default: |
| 1624 | DEBUGP(4, dev, "... in default (unknown IOCTL code)\n"); |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1625 | rc = -ENOTTY; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1626 | } |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1627 | out: |
Arnd Bergmann | 613655f | 2010-06-02 14:28:52 +0200 | [diff] [blame] | 1628 | mutex_unlock(&cmm_mutex); |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1629 | return rc; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1630 | } |
| 1631 | |
| 1632 | static int cmm_open(struct inode *inode, struct file *filp) |
| 1633 | { |
| 1634 | struct cm4000_dev *dev; |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 1635 | struct pcmcia_device *link; |
Daniel Ritz | 925796e | 2007-08-10 13:00:58 -0700 | [diff] [blame] | 1636 | int minor = iminor(inode); |
Jonathan Corbet | 8b5332f | 2008-06-19 14:34:41 -0600 | [diff] [blame] | 1637 | int ret; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1638 | |
| 1639 | if (minor >= CM4000_MAX_DEV) |
| 1640 | return -ENODEV; |
| 1641 | |
Arnd Bergmann | 613655f | 2010-06-02 14:28:52 +0200 | [diff] [blame] | 1642 | mutex_lock(&cmm_mutex); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1643 | link = dev_table[minor]; |
Jonathan Corbet | 8b5332f | 2008-06-19 14:34:41 -0600 | [diff] [blame] | 1644 | if (link == NULL || !pcmcia_dev_present(link)) { |
| 1645 | ret = -ENODEV; |
| 1646 | goto out; |
| 1647 | } |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1648 | |
Jonathan Corbet | 8b5332f | 2008-06-19 14:34:41 -0600 | [diff] [blame] | 1649 | if (link->open) { |
| 1650 | ret = -EBUSY; |
| 1651 | goto out; |
| 1652 | } |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1653 | |
| 1654 | dev = link->priv; |
| 1655 | filp->private_data = dev; |
| 1656 | |
| 1657 | DEBUGP(2, dev, "-> cmm_open(device=%d.%d process=%s,%d)\n", |
| 1658 | imajor(inode), minor, current->comm, current->pid); |
| 1659 | |
| 1660 | /* init device variables, they may be "polluted" after close |
| 1661 | * or, the device may never have been closed (i.e. open failed) |
| 1662 | */ |
| 1663 | |
| 1664 | ZERO_DEV(dev); |
| 1665 | |
| 1666 | /* opening will always block since the |
| 1667 | * monitor will be started by open, which |
| 1668 | * means we have to wait for ATR becoming |
Nikanth Karthikesan | 817f2c8 | 2010-09-20 11:44:00 +0530 | [diff] [blame] | 1669 | * valid = block until valid (or card |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1670 | * inserted) |
| 1671 | */ |
Jonathan Corbet | 8b5332f | 2008-06-19 14:34:41 -0600 | [diff] [blame] | 1672 | if (filp->f_flags & O_NONBLOCK) { |
| 1673 | ret = -EAGAIN; |
| 1674 | goto out; |
| 1675 | } |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1676 | |
| 1677 | dev->mdelay = T_50MSEC; |
| 1678 | |
| 1679 | /* start monitoring the cardstatus */ |
| 1680 | start_monitor(dev); |
| 1681 | |
| 1682 | link->open = 1; /* only one open per device */ |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1683 | |
| 1684 | DEBUGP(2, dev, "<- cmm_open\n"); |
Jonathan Corbet | 8b5332f | 2008-06-19 14:34:41 -0600 | [diff] [blame] | 1685 | ret = nonseekable_open(inode, filp); |
| 1686 | out: |
Arnd Bergmann | 613655f | 2010-06-02 14:28:52 +0200 | [diff] [blame] | 1687 | mutex_unlock(&cmm_mutex); |
Jonathan Corbet | 8b5332f | 2008-06-19 14:34:41 -0600 | [diff] [blame] | 1688 | return ret; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1689 | } |
| 1690 | |
| 1691 | static int cmm_close(struct inode *inode, struct file *filp) |
| 1692 | { |
| 1693 | struct cm4000_dev *dev; |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 1694 | struct pcmcia_device *link; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1695 | int minor = iminor(inode); |
| 1696 | |
| 1697 | if (minor >= CM4000_MAX_DEV) |
| 1698 | return -ENODEV; |
| 1699 | |
| 1700 | link = dev_table[minor]; |
| 1701 | if (link == NULL) |
| 1702 | return -ENODEV; |
| 1703 | |
| 1704 | dev = link->priv; |
| 1705 | |
| 1706 | DEBUGP(2, dev, "-> cmm_close(maj/min=%d.%d)\n", |
| 1707 | imajor(inode), minor); |
| 1708 | |
| 1709 | stop_monitor(dev); |
| 1710 | |
| 1711 | ZERO_DEV(dev); |
| 1712 | |
| 1713 | link->open = 0; /* only one open per device */ |
| 1714 | wake_up(&dev->devq); /* socket removed? */ |
| 1715 | |
| 1716 | DEBUGP(2, dev, "cmm_close\n"); |
| 1717 | return 0; |
| 1718 | } |
| 1719 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 1720 | static void cmm_cm4000_release(struct pcmcia_device * link) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1721 | { |
| 1722 | struct cm4000_dev *dev = link->priv; |
| 1723 | |
| 1724 | /* dont terminate the monitor, rather rely on |
| 1725 | * close doing that for us. |
| 1726 | */ |
| 1727 | DEBUGP(3, dev, "-> cmm_cm4000_release\n"); |
| 1728 | while (link->open) { |
| 1729 | printk(KERN_INFO MODULE_NAME ": delaying release until " |
| 1730 | "process has terminated\n"); |
| 1731 | /* note: don't interrupt us: |
| 1732 | * close the applications which own |
| 1733 | * the devices _first_ ! |
| 1734 | */ |
| 1735 | wait_event(dev->devq, (link->open == 0)); |
| 1736 | } |
| 1737 | /* dev->devq=NULL; this cannot be zeroed earlier */ |
| 1738 | DEBUGP(3, dev, "<- cmm_cm4000_release\n"); |
| 1739 | return; |
| 1740 | } |
| 1741 | |
| 1742 | /*==== Interface to PCMCIA Layer =======================================*/ |
| 1743 | |
Dominik Brodowski | 00990e7 | 2010-07-30 13:13:46 +0200 | [diff] [blame] | 1744 | static int cm4000_config_check(struct pcmcia_device *p_dev, void *priv_data) |
Dominik Brodowski | 84e2d34 | 2008-07-29 08:38:55 +0200 | [diff] [blame] | 1745 | { |
Dominik Brodowski | 90abdc3 | 2010-07-24 17:23:51 +0200 | [diff] [blame] | 1746 | return pcmcia_request_io(p_dev); |
Dominik Brodowski | 84e2d34 | 2008-07-29 08:38:55 +0200 | [diff] [blame] | 1747 | } |
| 1748 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 1749 | static int cm4000_config(struct pcmcia_device * link, int devno) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1750 | { |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1751 | struct cm4000_dev *dev; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1752 | |
Dominik Brodowski | 00990e7 | 2010-07-30 13:13:46 +0200 | [diff] [blame] | 1753 | link->config_flags |= CONF_AUTO_SET_IO; |
| 1754 | |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1755 | /* read the config-tuples */ |
Dominik Brodowski | 84e2d34 | 2008-07-29 08:38:55 +0200 | [diff] [blame] | 1756 | if (pcmcia_loop_config(link, cm4000_config_check, NULL)) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1757 | goto cs_release; |
| 1758 | |
Dominik Brodowski | 1ac71e5 | 2010-07-29 19:27:09 +0200 | [diff] [blame] | 1759 | if (pcmcia_enable_device(link)) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1760 | goto cs_release; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1761 | |
| 1762 | dev = link->priv; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1763 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 1764 | return 0; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1765 | |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1766 | cs_release: |
| 1767 | cm4000_release(link); |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 1768 | return -ENODEV; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1769 | } |
| 1770 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 1771 | static int cm4000_suspend(struct pcmcia_device *link) |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 1772 | { |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 1773 | struct cm4000_dev *dev; |
| 1774 | |
| 1775 | dev = link->priv; |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 1776 | stop_monitor(dev); |
| 1777 | |
| 1778 | return 0; |
| 1779 | } |
| 1780 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 1781 | static int cm4000_resume(struct pcmcia_device *link) |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 1782 | { |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 1783 | struct cm4000_dev *dev; |
| 1784 | |
| 1785 | dev = link->priv; |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 1786 | if (link->open) |
| 1787 | start_monitor(dev); |
| 1788 | |
| 1789 | return 0; |
| 1790 | } |
| 1791 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 1792 | static void cm4000_release(struct pcmcia_device *link) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1793 | { |
Daniel Ritz | 925796e | 2007-08-10 13:00:58 -0700 | [diff] [blame] | 1794 | cmm_cm4000_release(link); /* delay release until device closed */ |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 1795 | pcmcia_disable_device(link); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1796 | } |
| 1797 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 1798 | static int cm4000_probe(struct pcmcia_device *link) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1799 | { |
| 1800 | struct cm4000_dev *dev; |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 1801 | int i, ret; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1802 | |
| 1803 | for (i = 0; i < CM4000_MAX_DEV; i++) |
| 1804 | if (dev_table[i] == NULL) |
| 1805 | break; |
| 1806 | |
| 1807 | if (i == CM4000_MAX_DEV) { |
| 1808 | printk(KERN_NOTICE MODULE_NAME ": all devices in use\n"); |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 1809 | return -ENODEV; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1810 | } |
| 1811 | |
| 1812 | /* create a new cm4000_cs device */ |
| 1813 | dev = kzalloc(sizeof(struct cm4000_dev), GFP_KERNEL); |
| 1814 | if (dev == NULL) |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 1815 | return -ENOMEM; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1816 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 1817 | dev->p_dev = link; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1818 | link->priv = dev; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1819 | dev_table[i] = link; |
| 1820 | |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1821 | init_waitqueue_head(&dev->devq); |
| 1822 | init_waitqueue_head(&dev->ioq); |
| 1823 | init_waitqueue_head(&dev->atrq); |
| 1824 | init_waitqueue_head(&dev->readq); |
| 1825 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 1826 | ret = cm4000_config(link, i); |
Akinobu Mita | 54493c1 | 2007-05-09 02:33:31 -0700 | [diff] [blame] | 1827 | if (ret) { |
| 1828 | dev_table[i] = NULL; |
| 1829 | kfree(dev); |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 1830 | return ret; |
Akinobu Mita | 54493c1 | 2007-05-09 02:33:31 -0700 | [diff] [blame] | 1831 | } |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 1832 | |
Greg Kroah-Hartman | 03457cd | 2008-07-21 20:03:34 -0700 | [diff] [blame] | 1833 | device_create(cmm_class, NULL, MKDEV(major, i), NULL, "cmm%d", i); |
Harald Welte | 67bc620 | 2006-02-14 09:21:26 +0100 | [diff] [blame] | 1834 | |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 1835 | return 0; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1836 | } |
| 1837 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 1838 | static void cm4000_detach(struct pcmcia_device *link) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1839 | { |
| 1840 | struct cm4000_dev *dev = link->priv; |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 1841 | int devno; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1842 | |
| 1843 | /* find device */ |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 1844 | for (devno = 0; devno < CM4000_MAX_DEV; devno++) |
| 1845 | if (dev_table[devno] == link) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1846 | break; |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 1847 | if (devno == CM4000_MAX_DEV) |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1848 | return; |
| 1849 | |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 1850 | stop_monitor(dev); |
| 1851 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 1852 | cm4000_release(link); |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 1853 | |
| 1854 | dev_table[devno] = NULL; |
Akinobu Mita | 54493c1 | 2007-05-09 02:33:31 -0700 | [diff] [blame] | 1855 | kfree(dev); |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 1856 | |
tonyj@suse.de | 07c015e | 2007-08-07 22:28:44 -0700 | [diff] [blame] | 1857 | device_destroy(cmm_class, MKDEV(major, devno)); |
Harald Welte | 67bc620 | 2006-02-14 09:21:26 +0100 | [diff] [blame] | 1858 | |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1859 | return; |
| 1860 | } |
| 1861 | |
Arjan van de Ven | 62322d2 | 2006-07-03 00:24:21 -0700 | [diff] [blame] | 1862 | static const struct file_operations cm4000_fops = { |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1863 | .owner = THIS_MODULE, |
| 1864 | .read = cmm_read, |
| 1865 | .write = cmm_write, |
Alan Cox | 4cf974c | 2008-06-14 16:01:57 +0200 | [diff] [blame] | 1866 | .unlocked_ioctl = cmm_ioctl, |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1867 | .open = cmm_open, |
| 1868 | .release= cmm_close, |
Arnd Bergmann | 6038f37 | 2010-08-15 18:52:59 +0200 | [diff] [blame] | 1869 | .llseek = no_llseek, |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1870 | }; |
| 1871 | |
Joe Perches | 25f8f54 | 2011-05-03 19:29:01 -0700 | [diff] [blame] | 1872 | static const struct pcmcia_device_id cm4000_ids[] = { |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1873 | PCMCIA_DEVICE_MANF_CARD(0x0223, 0x0002), |
| 1874 | PCMCIA_DEVICE_PROD_ID12("CardMan", "4000", 0x2FB368CA, 0xA2BD8C39), |
| 1875 | PCMCIA_DEVICE_NULL, |
| 1876 | }; |
| 1877 | MODULE_DEVICE_TABLE(pcmcia, cm4000_ids); |
| 1878 | |
| 1879 | static struct pcmcia_driver cm4000_driver = { |
| 1880 | .owner = THIS_MODULE, |
Dominik Brodowski | 2e9b981 | 2010-08-08 11:36:26 +0200 | [diff] [blame] | 1881 | .name = "cm4000_cs", |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 1882 | .probe = cm4000_probe, |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 1883 | .remove = cm4000_detach, |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 1884 | .suspend = cm4000_suspend, |
| 1885 | .resume = cm4000_resume, |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1886 | .id_table = cm4000_ids, |
| 1887 | }; |
| 1888 | |
| 1889 | static int __init cmm_init(void) |
| 1890 | { |
Harald Welte | 67bc620 | 2006-02-14 09:21:26 +0100 | [diff] [blame] | 1891 | int rc; |
| 1892 | |
Harald Welte | 67bc620 | 2006-02-14 09:21:26 +0100 | [diff] [blame] | 1893 | cmm_class = class_create(THIS_MODULE, "cardman_4000"); |
Akinobu Mita | 5eb5fc9 | 2006-10-17 15:25:59 +0900 | [diff] [blame] | 1894 | if (IS_ERR(cmm_class)) |
| 1895 | return PTR_ERR(cmm_class); |
Harald Welte | 67bc620 | 2006-02-14 09:21:26 +0100 | [diff] [blame] | 1896 | |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1897 | major = register_chrdev(0, DEVICE_NAME, &cm4000_fops); |
| 1898 | if (major < 0) { |
| 1899 | printk(KERN_WARNING MODULE_NAME |
| 1900 | ": could not get major number\n"); |
Akinobu Mita | 54493c1 | 2007-05-09 02:33:31 -0700 | [diff] [blame] | 1901 | class_destroy(cmm_class); |
Akinobu Mita | 5eb5fc9 | 2006-10-17 15:25:59 +0900 | [diff] [blame] | 1902 | return major; |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1903 | } |
| 1904 | |
Harald Welte | 7fc5b1e | 2006-05-10 13:28:52 +0200 | [diff] [blame] | 1905 | rc = pcmcia_register_driver(&cm4000_driver); |
| 1906 | if (rc < 0) { |
| 1907 | unregister_chrdev(major, DEVICE_NAME); |
Akinobu Mita | 54493c1 | 2007-05-09 02:33:31 -0700 | [diff] [blame] | 1908 | class_destroy(cmm_class); |
Harald Welte | 7fc5b1e | 2006-05-10 13:28:52 +0200 | [diff] [blame] | 1909 | return rc; |
| 1910 | } |
| 1911 | |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1912 | return 0; |
| 1913 | } |
| 1914 | |
| 1915 | static void __exit cmm_exit(void) |
| 1916 | { |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1917 | pcmcia_unregister_driver(&cm4000_driver); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1918 | unregister_chrdev(major, DEVICE_NAME); |
Harald Welte | 67bc620 | 2006-02-14 09:21:26 +0100 | [diff] [blame] | 1919 | class_destroy(cmm_class); |
Harald Welte | c1986ee | 2005-11-13 16:06:29 -0800 | [diff] [blame] | 1920 | }; |
| 1921 | |
| 1922 | module_init(cmm_init); |
| 1923 | module_exit(cmm_exit); |
| 1924 | MODULE_LICENSE("Dual BSD/GPL"); |