drivers/bluetooth/dtl1_cs.c

   1 /*
   2  *
   3  *  A driver for Nokia Connectivity Card DTL-1 devices
   4  *
   5  *  Copyright (C) 2001-2002  Marcel Holtmann <marcel@holtmann.org>
   6  *
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License version 2 as
  10  *  published by the Free Software Foundation;
  11  *
  12  *  Software distributed under the License is distributed on an "AS
  13  *  IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
  14  *  implied. See the License for the specific language governing
  15  *  rights and limitations under the License.
  16  *
  17  *  The initial developer of the original code is David A. Hinds
  18  *  <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
  19  *  are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
  20  *
  21  */
  22
  23 #include <linux/module.h>
  24
  25 #include <linux/kernel.h>
  26 #include <linux/init.h>
  27 #include <linux/slab.h>
  28 #include <linux/types.h>
  29 #include <linux/sched.h>
  30 #include <linux/delay.h>
  31 #include <linux/errno.h>
  32 #include <linux/ptrace.h>
  33 #include <linux/ioport.h>
  34 #include <linux/spinlock.h>
  35 #include <linux/moduleparam.h>
  36
  37 #include <linux/skbuff.h>
  38 #include <linux/string.h>
  39 #include <linux/serial.h>
  40 #include <linux/serial_reg.h>
  41 #include <linux/bitops.h>
  42 #include <asm/system.h>
  43 #include <asm/io.h>
  44
  45 #include <pcmcia/cs_types.h>
  46 #include <pcmcia/cs.h>
  47 #include <pcmcia/cistpl.h>
  48 #include <pcmcia/ciscode.h>
  49 #include <pcmcia/ds.h>
  50 #include <pcmcia/cisreg.h>
  51
  52 #include <net/bluetooth/bluetooth.h>
  53 #include <net/bluetooth/hci_core.h>
  54
  55
  56
  57 /* ======================== Module parameters ======================== */
  58
  59
  60 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
  61 MODULE_DESCRIPTION("Bluetooth driver for Nokia Connectivity Card DTL-1");
  62 MODULE_LICENSE("GPL");
  63
  64
  65
  66 /* ======================== Local structures ======================== */
  67
  68
  69 typedef struct dtl1_info_t {
  70         struct pcmcia_device *p_dev;
  71         dev_node_t node;
  72
  73         struct hci_dev *hdev;
  74
  75         spinlock_t lock;                /* For serializing operations */
  76
  77         unsigned long flowmask;         /* HCI flow mask */
  78         int ri_latch;
  79
  80         struct sk_buff_head txq;
  81         unsigned long tx_state;
  82
  83         unsigned long rx_state;
  84         unsigned long rx_count;
  85         struct sk_buff *rx_skb;
  86 } dtl1_info_t;
  87
  88
  89 static int dtl1_config(struct pcmcia_device *link);
  90 static void dtl1_release(struct pcmcia_device *link);
  91
  92 static void dtl1_detach(struct pcmcia_device *p_dev);
  93
  94
  95 /* Transmit states  */
  96 #define XMIT_SENDING  1
  97 #define XMIT_WAKEUP   2
  98 #define XMIT_WAITING  8
  99
 100 /* Receiver States */
 101 #define RECV_WAIT_NSH   0
 102 #define RECV_WAIT_DATA  1
 103
 104
 105 typedef struct {
 106         u8 type;
 107         u8 zero;
 108         u16 len;
 109 } __attribute__ ((packed)) nsh_t;       /* Nokia Specific Header */
 110
 111 #define NSHL  4                         /* Nokia Specific Header Length */
 112
 113
 114
 115 /* ======================== Interrupt handling ======================== */
 116
 117
 118 static int dtl1_write(unsigned int iobase, int fifo_size, __u8 *buf, int len)
 119 {
 120         int actual = 0;
 121
 122         /* Tx FIFO should be empty */
 123         if (!(inb(iobase + UART_LSR) & UART_LSR_THRE))
 124                 return 0;
 125
 126         /* Fill FIFO with current frame */
 127         while ((fifo_size-- > 0) && (actual < len)) {
 128                 /* Transmit next byte */
 129                 outb(buf[actual], iobase + UART_TX);
 130                 actual++;
 131         }
 132
 133         return actual;
 134 }
 135
 136
 137 static void dtl1_write_wakeup(dtl1_info_t *info)
 138 {
 139         if (!info) {
 140                 BT_ERR("Unknown device");
 141                 return;
 142         }
 143
 144         if (test_bit(XMIT_WAITING, &(info->tx_state))) {
 145                 set_bit(XMIT_WAKEUP, &(info->tx_state));
 146                 return;
 147         }
 148
 149         if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) {
 150                 set_bit(XMIT_WAKEUP, &(info->tx_state));
 151                 return;
 152         }
 153
 154         do {
 155                 register unsigned int iobase = info->p_dev->io.BasePort1;
 156                 register struct sk_buff *skb;
 157                 register int len;
 158
 159                 clear_bit(XMIT_WAKEUP, &(info->tx_state));
 160
 161                 if (!pcmcia_dev_present(info->p_dev))
 162                         return;
 163
 164                 if (!(skb = skb_dequeue(&(info->txq))))
 165                         break;
 166
 167                 /* Send frame */
 168                 len = dtl1_write(iobase, 32, skb->data, skb->len);
 169
 170                 if (len == skb->len) {
 171                         set_bit(XMIT_WAITING, &(info->tx_state));
 172                         kfree_skb(skb);
 173                 } else {
 174                         skb_pull(skb, len);
 175                         skb_queue_head(&(info->txq), skb);
 176                 }
 177
 178                 info->hdev->stat.byte_tx += len;
 179
 180         } while (test_bit(XMIT_WAKEUP, &(info->tx_state)));
 181
 182         clear_bit(XMIT_SENDING, &(info->tx_state));
 183 }
 184
 185
 186 static void dtl1_control(dtl1_info_t *info, struct sk_buff *skb)
 187 {
 188         u8 flowmask = *(u8 *)skb->data;
 189         int i;
 190
 191         printk(KERN_INFO "Bluetooth: Nokia control data =");
 192         for (i = 0; i < skb->len; i++) {
 193                 printk(" %02x", skb->data[i]);
 194         }
 195         printk("\n");
 196
 197         /* transition to active state */
 198         if (((info->flowmask & 0x07) == 0) && ((flowmask & 0x07) != 0)) {
 199                 clear_bit(XMIT_WAITING, &(info->tx_state));
 200                 dtl1_write_wakeup(info);
 201         }
 202
 203         info->flowmask = flowmask;
 204
 205         kfree_skb(skb);
 206 }
 207
 208
 209 static void dtl1_receive(dtl1_info_t *info)
 210 {
 211         unsigned int iobase;
 212         nsh_t *nsh;
 213         int boguscount = 0;
 214
 215         if (!info) {
 216                 BT_ERR("Unknown device");
 217                 return;
 218         }
 219
 220         iobase = info->p_dev->io.BasePort1;
 221
 222         do {
 223                 info->hdev->stat.byte_rx++;
 224
 225                 /* Allocate packet */
 226                 if (info->rx_skb == NULL)
 227                         if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
 228                                 BT_ERR("Can't allocate mem for new packet");
 229                                 info->rx_state = RECV_WAIT_NSH;
 230                                 info->rx_count = NSHL;
 231                                 return;
 232                         }
 233
 234                 *skb_put(info->rx_skb, 1) = inb(iobase + UART_RX);
 235                 nsh = (nsh_t *)info->rx_skb->data;
 236
 237                 info->rx_count--;
 238
 239                 if (info->rx_count == 0) {
 240
 241                         switch (info->rx_state) {
 242                         case RECV_WAIT_NSH:
 243                                 info->rx_state = RECV_WAIT_DATA;
 244                                 info->rx_count = nsh->len + (nsh->len & 0x0001);
 245                                 break;
 246                         case RECV_WAIT_DATA:
 247                                 bt_cb(info->rx_skb)->pkt_type = nsh->type;
 248
 249                                 /* remove PAD byte if it exists */
 250                                 if (nsh->len & 0x0001) {
 251                                         info->rx_skb->tail--;
 252                                         info->rx_skb->len--;
 253                                 }
 254
 255                                 /* remove NSH */
 256                                 skb_pull(info->rx_skb, NSHL);
 257
 258                                 switch (bt_cb(info->rx_skb)->pkt_type) {
 259                                 case 0x80:
 260                                         /* control data for the Nokia Card */
 261                                         dtl1_control(info, info->rx_skb);
 262                                         break;
 263                                 case 0x82:
 264                                 case 0x83:
 265                                 case 0x84:
 266                                         /* send frame to the HCI layer */
 267                                         info->rx_skb->dev = (void *) info->hdev;
 268                                         bt_cb(info->rx_skb)->pkt_type &= 0x0f;
 269                                         hci_recv_frame(info->rx_skb);
 270                                         break;
 271                                 default:
 272                                         /* unknown packet */
 273                                         BT_ERR("Unknown HCI packet with type 0x%02x received", bt_cb(info->rx_skb)->pkt_type);
 274                                         kfree_skb(info->rx_skb);
 275                                         break;
 276                                 }
 277
 278                                 info->rx_state = RECV_WAIT_NSH;
 279                                 info->rx_count = NSHL;
 280                                 info->rx_skb = NULL;
 281                                 break;
 282                         }
 283
 284                 }
 285
 286                 /* Make sure we don't stay here too long */
 287                 if (boguscount++ > 32)
 288                         break;
 289
 290         } while (inb(iobase + UART_LSR) & UART_LSR_DR);
 291 }
 292
 293
 294 static irqreturn_t dtl1_interrupt(int irq, void *dev_inst)
 295 {
 296         dtl1_info_t *info = dev_inst;
 297         unsigned int iobase;
 298         unsigned char msr;
 299         int boguscount = 0;
 300         int iir, lsr;
 301
 302         if (!info || !info->hdev) {
 303                 BT_ERR("Call of irq %d for unknown device", irq);
 304                 return IRQ_NONE;
 305         }
 306
 307         iobase = info->p_dev->io.BasePort1;
 308
 309         spin_lock(&(info->lock));
 310
 311         iir = inb(iobase + UART_IIR) & UART_IIR_ID;
 312         while (iir) {
 313
 314                 /* Clear interrupt */
 315                 lsr = inb(iobase + UART_LSR);
 316
 317                 switch (iir) {
 318                 case UART_IIR_RLSI:
 319                         BT_ERR("RLSI");
 320                         break;
 321                 case UART_IIR_RDI:
 322                         /* Receive interrupt */
 323                         dtl1_receive(info);
 324                         break;
 325                 case UART_IIR_THRI:
 326                         if (lsr & UART_LSR_THRE) {
 327                                 /* Transmitter ready for data */
 328                                 dtl1_write_wakeup(info);
 329                         }
 330                         break;
 331                 default:
 332                         BT_ERR("Unhandled IIR=%#x", iir);
 333                         break;
 334                 }
 335
 336                 /* Make sure we don't stay here too long */
 337                 if (boguscount++ > 100)
 338                         break;
 339
 340                 iir = inb(iobase + UART_IIR) & UART_IIR_ID;
 341
 342         }
 343
 344         msr = inb(iobase + UART_MSR);
 345
 346         if (info->ri_latch ^ (msr & UART_MSR_RI)) {
 347                 info->ri_latch = msr & UART_MSR_RI;
 348                 clear_bit(XMIT_WAITING, &(info->tx_state));
 349                 dtl1_write_wakeup(info);
 350         }
 351
 352         spin_unlock(&(info->lock));
 353
 354         return IRQ_HANDLED;
 355 }
 356
 357
 358
 359 /* ======================== HCI interface ======================== */
 360
 361
 362 static int dtl1_hci_open(struct hci_dev *hdev)
 363 {
 364         set_bit(HCI_RUNNING, &(hdev->flags));
 365
 366         return 0;
 367 }
 368
 369
 370 static int dtl1_hci_flush(struct hci_dev *hdev)
 371 {
 372         dtl1_info_t *info = (dtl1_info_t *)(hdev->driver_data);
 373
 374         /* Drop TX queue */
 375         skb_queue_purge(&(info->txq));
 376
 377         return 0;
 378 }
 379
 380
 381 static int dtl1_hci_close(struct hci_dev *hdev)
 382 {
 383         if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags)))
 384                 return 0;
 385
 386         dtl1_hci_flush(hdev);
 387
 388         return 0;
 389 }
 390
 391
 392 static int dtl1_hci_send_frame(struct sk_buff *skb)
 393 {
 394         dtl1_info_t *info;
 395         struct hci_dev *hdev = (struct hci_dev *)(skb->dev);
 396         struct sk_buff *s;
 397         nsh_t nsh;
 398
 399         if (!hdev) {
 400                 BT_ERR("Frame for unknown HCI device (hdev=NULL)");
 401                 return -ENODEV;
 402         }
 403
 404         info = (dtl1_info_t *)(hdev->driver_data);
 405
 406         switch (bt_cb(skb)->pkt_type) {
 407         case HCI_COMMAND_PKT:
 408                 hdev->stat.cmd_tx++;
 409                 nsh.type = 0x81;
 410                 break;
 411         case HCI_ACLDATA_PKT:
 412                 hdev->stat.acl_tx++;
 413                 nsh.type = 0x82;
 414                 break;
 415         case HCI_SCODATA_PKT:
 416                 hdev->stat.sco_tx++;
 417                 nsh.type = 0x83;
 418                 break;
 419         };
 420
 421         nsh.zero = 0;
 422         nsh.len = skb->len;
 423
 424         s = bt_skb_alloc(NSHL + skb->len + 1, GFP_ATOMIC);
 425         if (!s)
 426                 return -ENOMEM;
 427
 428         skb_reserve(s, NSHL);
 429         memcpy(skb_put(s, skb->len), skb->data, skb->len);
 430         if (skb->len & 0x0001)
 431                 *skb_put(s, 1) = 0;     /* PAD */
 432
 433         /* Prepend skb with Nokia frame header and queue */
 434         memcpy(skb_push(s, NSHL), &nsh, NSHL);
 435         skb_queue_tail(&(info->txq), s);
 436
 437         dtl1_write_wakeup(info);
 438
 439         kfree_skb(skb);
 440
 441         return 0;
 442 }
 443
 444
 445 static void dtl1_hci_destruct(struct hci_dev *hdev)
 446 {
 447 }
 448
 449
 450 static int dtl1_hci_ioctl(struct hci_dev *hdev, unsigned int cmd,  unsigned long arg)
 451 {
 452         return -ENOIOCTLCMD;
 453 }
 454
 455
 456
 457 /* ======================== Card services HCI interaction ======================== */
 458
 459
 460 static int dtl1_open(dtl1_info_t *info)
 461 {
 462         unsigned long flags;
 463         unsigned int iobase = info->p_dev->io.BasePort1;
 464         struct hci_dev *hdev;
 465
 466         spin_lock_init(&(info->lock));
 467
 468         skb_queue_head_init(&(info->txq));
 469
 470         info->rx_state = RECV_WAIT_NSH;
 471         info->rx_count = NSHL;
 472         info->rx_skb = NULL;
 473
 474         set_bit(XMIT_WAITING, &(info->tx_state));
 475
 476         /* Initialize HCI device */
 477         hdev = hci_alloc_dev();
 478         if (!hdev) {
 479                 BT_ERR("Can't allocate HCI device");
 480                 return -ENOMEM;
 481         }
 482
 483         info->hdev = hdev;
 484
 485         hdev->type = HCI_PCCARD;
 486         hdev->driver_data = info;
 487         SET_HCIDEV_DEV(hdev, &info->p_dev->dev);
 488
 489         hdev->open     = dtl1_hci_open;
 490         hdev->close    = dtl1_hci_close;
 491         hdev->flush    = dtl1_hci_flush;
 492         hdev->send     = dtl1_hci_send_frame;
 493         hdev->destruct = dtl1_hci_destruct;
 494         hdev->ioctl    = dtl1_hci_ioctl;
 495
 496         hdev->owner = THIS_MODULE;
 497
 498         spin_lock_irqsave(&(info->lock), flags);
 499
 500         /* Reset UART */
 501         outb(0, iobase + UART_MCR);
 502
 503         /* Turn off interrupts */
 504         outb(0, iobase + UART_IER);
 505
 506         /* Initialize UART */
 507         outb(UART_LCR_WLEN8, iobase + UART_LCR);        /* Reset DLAB */
 508         outb((UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2), iobase + UART_MCR);
 509
 510         info->ri_latch = inb(info->p_dev->io.BasePort1 + UART_MSR) & UART_MSR_RI;
 511
 512         /* Turn on interrupts */
 513         outb(UART_IER_RLSI | UART_IER_RDI | UART_IER_THRI, iobase + UART_IER);
 514
 515         spin_unlock_irqrestore(&(info->lock), flags);
 516
 517         /* Timeout before it is safe to send the first HCI packet */
 518         msleep(2000);
 519
 520         /* Register HCI device */
 521         if (hci_register_dev(hdev) < 0) {
 522                 BT_ERR("Can't register HCI device");
 523                 info->hdev = NULL;
 524                 hci_free_dev(hdev);
 525                 return -ENODEV;
 526         }
 527
 528         return 0;
 529 }
 530
 531
 532 static int dtl1_close(dtl1_info_t *info)
 533 {
 534         unsigned long flags;
 535         unsigned int iobase = info->p_dev->io.BasePort1;
 536         struct hci_dev *hdev = info->hdev;
 537
 538         if (!hdev)
 539                 return -ENODEV;
 540
 541         dtl1_hci_close(hdev);
 542
 543         spin_lock_irqsave(&(info->lock), flags);
 544
 545         /* Reset UART */
 546         outb(0, iobase + UART_MCR);
 547
 548         /* Turn off interrupts */
 549         outb(0, iobase + UART_IER);
 550
 551         spin_unlock_irqrestore(&(info->lock), flags);
 552
 553         if (hci_unregister_dev(hdev) < 0)
 554                 BT_ERR("Can't unregister HCI device %s", hdev->name);
 555
 556         hci_free_dev(hdev);
 557
 558         return 0;
 559 }
 560
 561 static int dtl1_probe(struct pcmcia_device *link)
 562 {
 563         dtl1_info_t *info;
 564
 565         /* Create new info device */
 566         info = kzalloc(sizeof(*info), GFP_KERNEL);
 567         if (!info)
 568                 return -ENOMEM;
 569
 570         info->p_dev = link;
 571         link->priv = info;
 572
 573         link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
 574         link->io.NumPorts1 = 8;
 575         link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
 576         link->irq.IRQInfo1 = IRQ_LEVEL_ID;
 577
 578         link->irq.Handler = dtl1_interrupt;
 579         link->irq.Instance = info;
 580
 581         link->conf.Attributes = CONF_ENABLE_IRQ;
 582         link->conf.IntType = INT_MEMORY_AND_IO;
 583
 584         return dtl1_config(link);
 585 }
 586
 587
 588 static void dtl1_detach(struct pcmcia_device *link)
 589 {
 590         dtl1_info_t *info = link->priv;
 591
 592         dtl1_release(link);
 593
 594         kfree(info);
 595 }
 596
 597 static int get_tuple(struct pcmcia_device *handle, tuple_t *tuple, cisparse_t *parse)
 598 {
 599         int i;
 600
 601         i = pcmcia_get_tuple_data(handle, tuple);
 602         if (i != CS_SUCCESS)
 603                 return i;
 604
 605         return pcmcia_parse_tuple(handle, tuple, parse);
 606 }
 607
 608 static int first_tuple(struct pcmcia_device *handle, tuple_t *tuple, cisparse_t *parse)
 609 {
 610         if (pcmcia_get_first_tuple(handle, tuple) != CS_SUCCESS)
 611                 return CS_NO_MORE_ITEMS;
 612         return get_tuple(handle, tuple, parse);
 613 }
 614
 615 static int next_tuple(struct pcmcia_device *handle, tuple_t *tuple, cisparse_t *parse)
 616 {
 617         if (pcmcia_get_next_tuple(handle, tuple) != CS_SUCCESS)
 618                 return CS_NO_MORE_ITEMS;
 619         return get_tuple(handle, tuple, parse);
 620 }
 621
 622 static int dtl1_config(struct pcmcia_device *link)
 623 {
 624         dtl1_info_t *info = link->priv;
 625         tuple_t tuple;
 626         u_short buf[256];
 627         cisparse_t parse;
 628         cistpl_cftable_entry_t *cf = &parse.cftable_entry;
 629         int i, last_ret, last_fn;
 630
 631         tuple.TupleData = (cisdata_t *)buf;
 632         tuple.TupleOffset = 0;
 633         tuple.TupleDataMax = 255;
 634         tuple.Attributes = 0;
 635
 636         /* Get configuration register information */
 637         tuple.DesiredTuple = CISTPL_CONFIG;
 638         last_ret = first_tuple(link, &tuple, &parse);
 639         if (last_ret != CS_SUCCESS) {
 640                 last_fn = ParseTuple;
 641                 goto cs_failed;
 642         }
 643         link->conf.ConfigBase = parse.config.base;
 644         link->conf.Present = parse.config.rmask[0];
 645
 646         tuple.TupleData = (cisdata_t *)buf;
 647         tuple.TupleOffset = 0;
 648         tuple.TupleDataMax = 255;
 649         tuple.Attributes = 0;
 650         tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
 651
 652         /* Look for a generic full-sized window */
 653         link->io.NumPorts1 = 8;
 654         i = first_tuple(link, &tuple, &parse);
 655         while (i != CS_NO_MORE_ITEMS) {
 656                 if ((i == CS_SUCCESS) && (cf->io.nwin == 1) && (cf->io.win[0].len > 8)) {
 657                         link->conf.ConfigIndex = cf->index;
 658                         link->io.BasePort1 = cf->io.win[0].base;
 659                         link->io.NumPorts1 = cf->io.win[0].len; /*yo */
 660                         link->io.IOAddrLines = cf->io.flags & CISTPL_IO_LINES_MASK;
 661                         i = pcmcia_request_io(link, &link->io);
 662                         if (i == CS_SUCCESS)
 663                                 break;
 664                 }
 665                 i = next_tuple(link, &tuple, &parse);
 666         }
 667
 668         if (i != CS_SUCCESS) {
 669                 cs_error(link, RequestIO, i);
 670                 goto failed;
 671         }
 672
 673         i = pcmcia_request_irq(link, &link->irq);
 674         if (i != CS_SUCCESS) {
 675                 cs_error(link, RequestIRQ, i);
 676                 link->irq.AssignedIRQ = 0;
 677         }
 678
 679         i = pcmcia_request_configuration(link, &link->conf);
 680         if (i != CS_SUCCESS) {
 681                 cs_error(link, RequestConfiguration, i);
 682                 goto failed;
 683         }
 684
 685         if (dtl1_open(info) != 0)
 686                 goto failed;
 687
 688         strcpy(info->node.dev_name, info->hdev->name);
 689         link->dev_node = &info->node;
 690
 691         return 0;
 692
 693 cs_failed:
 694         cs_error(link, last_fn, last_ret);
 695
 696 failed:
 697         dtl1_release(link);
 698         return -ENODEV;
 699 }
 700
 701
 702 static void dtl1_release(struct pcmcia_device *link)
 703 {
 704         dtl1_info_t *info = link->priv;
 705
 706         dtl1_close(info);
 707
 708         pcmcia_disable_device(link);
 709 }
 710
 711
 712 static struct pcmcia_device_id dtl1_ids[] = {
 713         PCMCIA_DEVICE_PROD_ID12("Nokia Mobile Phones", "DTL-1", 0xe1bfdd64, 0xe168480d),
 714         PCMCIA_DEVICE_PROD_ID12("Socket", "CF", 0xb38bcc2e, 0x44ebf863),
 715         PCMCIA_DEVICE_PROD_ID12("Socket", "CF+ Personal Network Card", 0xb38bcc2e, 0xe732bae3),
 716         PCMCIA_DEVICE_NULL
 717 };
 718 MODULE_DEVICE_TABLE(pcmcia, dtl1_ids);
 719
 720 static struct pcmcia_driver dtl1_driver = {
 721         .owner          = THIS_MODULE,
 722         .drv            = {
 723                 .name   = "dtl1_cs",
 724         },
 725         .probe          = dtl1_probe,
 726         .remove         = dtl1_detach,
 727         .id_table       = dtl1_ids,
 728 };
 729
 730 static int __init init_dtl1_cs(void)
 731 {
 732         return pcmcia_register_driver(&dtl1_driver);
 733 }
 734
 735
 736 static void __exit exit_dtl1_cs(void)
 737 {
 738         pcmcia_unregister_driver(&dtl1_driver);
 739 }
 740
 741 module_init(init_dtl1_cs);
 742 module_exit(exit_dtl1_cs);