drivers/usb/serial/sierra.c

   1 /*
   2   USB Driver for Sierra Wireless
   3
   4   Copyright (C) 2006  Kevin Lloyd <linux@sierrawireless.com>
   5
   6   IMPORTANT DISCLAIMER: This driver is not commercially supported by
   7   Sierra Wireless. Use at your own risk.
   8
   9   This driver is free software; you can redistribute it and/or modify
  10   it under the terms of Version 2 of the GNU General Public License as
  11   published by the Free Software Foundation.
  12
  13   Portions based on the option driver by Matthias Urlichs <smurf@smurf.noris.de>
  14   Whom based his on the Keyspan driver by Hugh Blemings <hugh@blemings.org>
  15
  16   History:
  17 */
  18
  19 #define DRIVER_VERSION "v.1.0.5"
  20 #define DRIVER_AUTHOR "Kevin Lloyd <linux@sierrawireless.com>"
  21 #define DRIVER_DESC "USB Driver for Sierra Wireless USB modems"
  22
  23 #include <linux/kernel.h>
  24 #include <linux/jiffies.h>
  25 #include <linux/errno.h>
  26 #include <linux/tty.h>
  27 #include <linux/tty_flip.h>
  28 #include <linux/module.h>
  29 #include <linux/usb.h>
  30 #include <linux/usb/serial.h>
  31
  32
  33 static struct usb_device_id id_table [] = {
  34         { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */
  35         { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */
  36         { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */
  37         { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */
  38         { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */
  39         { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */
  40         { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 */
  41         { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */
  42
  43         { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */
  44         { USB_DEVICE(0x0F3D, 0x0112) }, /* AirPrime/Sierra PC 5220 */
  45         { }
  46 };
  47 MODULE_DEVICE_TABLE(usb, id_table);
  48
  49 static struct usb_device_id id_table_1port [] = {
  50         { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */
  51         { USB_DEVICE(0x0F3D, 0x0112) }, /* AirPrime/Sierra PC 5220 */
  52         { }
  53 };
  54
  55 static struct usb_device_id id_table_3port [] = {
  56         { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */
  57         { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */
  58         { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */
  59         { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */
  60         { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */
  61         { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */
  62         { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 */
  63         { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */
  64         { }
  65 };
  66
  67 static struct usb_driver sierra_driver = {
  68         .name       = "sierra",
  69         .probe      = usb_serial_probe,
  70         .disconnect = usb_serial_disconnect,
  71         .id_table   = id_table,
  72         .no_dynamic_id =        1,
  73 };
  74
  75
  76 static int debug;
  77
  78 /* per port private data */
  79 #define N_IN_URB        4
  80 #define N_OUT_URB       1
  81 #define IN_BUFLEN       4096
  82 #define OUT_BUFLEN      128
  83
  84 struct sierra_port_private {
  85         /* Input endpoints and buffer for this port */
  86         struct urb *in_urbs[N_IN_URB];
  87         char in_buffer[N_IN_URB][IN_BUFLEN];
  88         /* Output endpoints and buffer for this port */
  89         struct urb *out_urbs[N_OUT_URB];
  90         char out_buffer[N_OUT_URB][OUT_BUFLEN];
  91
  92         /* Settings for the port */
  93         int rts_state;  /* Handshaking pins (outputs) */
  94         int dtr_state;
  95         int cts_state;  /* Handshaking pins (inputs) */
  96         int dsr_state;
  97         int dcd_state;
  98         int ri_state;
  99
 100         unsigned long tx_start_time[N_OUT_URB];
 101 };
 102
 103 static int sierra_send_setup(struct usb_serial_port *port)
 104 {
 105         struct usb_serial *serial = port->serial;
 106         struct sierra_port_private *portdata;
 107
 108         dbg("%s", __FUNCTION__);
 109
 110         portdata = usb_get_serial_port_data(port);
 111
 112         if (port->tty) {
 113                 int val = 0;
 114                 if (portdata->dtr_state)
 115                         val |= 0x01;
 116                 if (portdata->rts_state)
 117                         val |= 0x02;
 118
 119                 return usb_control_msg(serial->dev,
 120                                 usb_rcvctrlpipe(serial->dev, 0),
 121                                 0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT);
 122         }
 123
 124         return 0;
 125 }
 126
 127 static void sierra_rx_throttle(struct usb_serial_port *port)
 128 {
 129         dbg("%s", __FUNCTION__);
 130 }
 131
 132 static void sierra_rx_unthrottle(struct usb_serial_port *port)
 133 {
 134         dbg("%s", __FUNCTION__);
 135 }
 136
 137 static void sierra_break_ctl(struct usb_serial_port *port, int break_state)
 138 {
 139         /* Unfortunately, I don't know how to send a break */
 140         dbg("%s", __FUNCTION__);
 141 }
 142
 143 static void sierra_set_termios(struct usb_serial_port *port,
 144                         struct termios *old_termios)
 145 {
 146         dbg("%s", __FUNCTION__);
 147
 148         sierra_send_setup(port);
 149 }
 150
 151 static int sierra_tiocmget(struct usb_serial_port *port, struct file *file)
 152 {
 153         unsigned int value;
 154         struct sierra_port_private *portdata;
 155
 156         portdata = usb_get_serial_port_data(port);
 157
 158         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
 159                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
 160                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
 161                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
 162                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
 163                 ((portdata->ri_state) ? TIOCM_RNG : 0);
 164
 165         return value;
 166 }
 167
 168 static int sierra_tiocmset(struct usb_serial_port *port, struct file *file,
 169                         unsigned int set, unsigned int clear)
 170 {
 171         struct sierra_port_private *portdata;
 172
 173         portdata = usb_get_serial_port_data(port);
 174
 175         if (set & TIOCM_RTS)
 176                 portdata->rts_state = 1;
 177         if (set & TIOCM_DTR)
 178                 portdata->dtr_state = 1;
 179
 180         if (clear & TIOCM_RTS)
 181                 portdata->rts_state = 0;
 182         if (clear & TIOCM_DTR)
 183                 portdata->dtr_state = 0;
 184         return sierra_send_setup(port);
 185 }
 186
 187 static int sierra_ioctl(struct usb_serial_port *port, struct file *file,
 188                         unsigned int cmd, unsigned long arg)
 189 {
 190         return -ENOIOCTLCMD;
 191 }
 192
 193 /* Write */
 194 static int sierra_write(struct usb_serial_port *port,
 195                         const unsigned char *buf, int count)
 196 {
 197         struct sierra_port_private *portdata;
 198         int i;
 199         int left, todo;
 200         struct urb *this_urb = NULL; /* spurious */
 201         int err;
 202
 203         portdata = usb_get_serial_port_data(port);
 204
 205         dbg("%s: write (%d chars)", __FUNCTION__, count);
 206
 207         i = 0;
 208         left = count;
 209         for (i=0; left > 0 && i < N_OUT_URB; i++) {
 210                 todo = left;
 211                 if (todo > OUT_BUFLEN)
 212                         todo = OUT_BUFLEN;
 213
 214                 this_urb = portdata->out_urbs[i];
 215                 if (this_urb->status == -EINPROGRESS) {
 216                         if (time_before(jiffies,
 217                                         portdata->tx_start_time[i] + 10 * HZ))
 218                                 continue;
 219                         usb_unlink_urb(this_urb);
 220                         continue;
 221                 }
 222                 if (this_urb->status != 0)
 223                         dbg("usb_write %p failed (err=%d)",
 224                                 this_urb, this_urb->status);
 225
 226                 dbg("%s: endpoint %d buf %d", __FUNCTION__,
 227                         usb_pipeendpoint(this_urb->pipe), i);
 228
 229                 /* send the data */
 230                 memcpy (this_urb->transfer_buffer, buf, todo);
 231                 this_urb->transfer_buffer_length = todo;
 232
 233                 this_urb->dev = port->serial->dev;
 234                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 235                 if (err) {
 236                         dbg("usb_submit_urb %p (write bulk) failed "
 237                                 "(%d, has %d)", this_urb,
 238                                 err, this_urb->status);
 239                         continue;
 240                 }
 241                 portdata->tx_start_time[i] = jiffies;
 242                 buf += todo;
 243                 left -= todo;
 244         }
 245
 246         count -= left;
 247         dbg("%s: wrote (did %d)", __FUNCTION__, count);
 248         return count;
 249 }
 250
 251 static void sierra_indat_callback(struct urb *urb)
 252 {
 253         int err;
 254         int endpoint;
 255         struct usb_serial_port *port;
 256         struct tty_struct *tty;
 257         unsigned char *data = urb->transfer_buffer;
 258
 259         dbg("%s: %p", __FUNCTION__, urb);
 260
 261         endpoint = usb_pipeendpoint(urb->pipe);
 262         port = (struct usb_serial_port *) urb->context;
 263
 264         if (urb->status) {
 265                 dbg("%s: nonzero status: %d on endpoint %02x.",
 266                     __FUNCTION__, urb->status, endpoint);
 267         } else {
 268                 tty = port->tty;
 269                 if (urb->actual_length) {
 270                         tty_buffer_request_room(tty, urb->actual_length);
 271                         tty_insert_flip_string(tty, data, urb->actual_length);
 272                         tty_flip_buffer_push(tty);
 273                 } else {
 274                         dbg("%s: empty read urb received", __FUNCTION__);
 275                 }
 276
 277                 /* Resubmit urb so we continue receiving */
 278                 if (port->open_count && urb->status != -ESHUTDOWN) {
 279                         err = usb_submit_urb(urb, GFP_ATOMIC);
 280                         if (err)
 281                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 282                                         "(%d)", __FUNCTION__, err);
 283                 }
 284         }
 285         return;
 286 }
 287
 288 static void sierra_outdat_callback(struct urb *urb)
 289 {
 290         struct usb_serial_port *port;
 291
 292         dbg("%s", __FUNCTION__);
 293
 294         port = (struct usb_serial_port *) urb->context;
 295
 296         usb_serial_port_softint(port);
 297 }
 298
 299 static void sierra_instat_callback(struct urb *urb)
 300 {
 301         int err;
 302         struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
 303         struct sierra_port_private *portdata = usb_get_serial_port_data(port);
 304         struct usb_serial *serial = port->serial;
 305
 306         dbg("%s", __FUNCTION__);
 307         dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata);
 308
 309         if (urb->status == 0) {
 310                 struct usb_ctrlrequest *req_pkt =
 311                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 312
 313                 if (!req_pkt) {
 314                         dbg("%s: NULL req_pkt\n", __FUNCTION__);
 315                         return;
 316                 }
 317                 if ((req_pkt->bRequestType == 0xA1) &&
 318                                 (req_pkt->bRequest == 0x20)) {
 319                         int old_dcd_state;
 320                         unsigned char signals = *((unsigned char *)
 321                                         urb->transfer_buffer +
 322                                         sizeof(struct usb_ctrlrequest));
 323
 324                         dbg("%s: signal x%x", __FUNCTION__, signals);
 325
 326                         old_dcd_state = portdata->dcd_state;
 327                         portdata->cts_state = 1;
 328                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 329                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 330                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 331
 332                         if (port->tty && !C_CLOCAL(port->tty) &&
 333                                         old_dcd_state && !portdata->dcd_state)
 334                                 tty_hangup(port->tty);
 335                 } else {
 336                         dbg("%s: type %x req %x", __FUNCTION__,
 337                                 req_pkt->bRequestType,req_pkt->bRequest);
 338                 }
 339         } else
 340                 dbg("%s: error %d", __FUNCTION__, urb->status);
 341
 342         /* Resubmit urb so we continue receiving IRQ data */
 343         if (urb->status != -ESHUTDOWN) {
 344                 urb->dev = serial->dev;
 345                 err = usb_submit_urb(urb, GFP_ATOMIC);
 346                 if (err)
 347                         dbg("%s: resubmit intr urb failed. (%d)",
 348                                 __FUNCTION__, err);
 349         }
 350 }
 351
 352 static int sierra_write_room(struct usb_serial_port *port)
 353 {
 354         struct sierra_port_private *portdata;
 355         int i;
 356         int data_len = 0;
 357         struct urb *this_urb;
 358
 359         portdata = usb_get_serial_port_data(port);
 360
 361         for (i=0; i < N_OUT_URB; i++) {
 362                 this_urb = portdata->out_urbs[i];
 363                 if (this_urb && this_urb->status != -EINPROGRESS)
 364                         data_len += OUT_BUFLEN;
 365         }
 366
 367         dbg("%s: %d", __FUNCTION__, data_len);
 368         return data_len;
 369 }
 370
 371 static int sierra_chars_in_buffer(struct usb_serial_port *port)
 372 {
 373         struct sierra_port_private *portdata;
 374         int i;
 375         int data_len = 0;
 376         struct urb *this_urb;
 377
 378         portdata = usb_get_serial_port_data(port);
 379
 380         for (i=0; i < N_OUT_URB; i++) {
 381                 this_urb = portdata->out_urbs[i];
 382                 if (this_urb && this_urb->status == -EINPROGRESS)
 383                         data_len += this_urb->transfer_buffer_length;
 384         }
 385         dbg("%s: %d", __FUNCTION__, data_len);
 386         return data_len;
 387 }
 388
 389 static int sierra_open(struct usb_serial_port *port, struct file *filp)
 390 {
 391         struct sierra_port_private *portdata;
 392         struct usb_serial *serial = port->serial;
 393         int i, err;
 394         struct urb *urb;
 395
 396         portdata = usb_get_serial_port_data(port);
 397
 398         dbg("%s", __FUNCTION__);
 399
 400         /* Set some sane defaults */
 401         portdata->rts_state = 1;
 402         portdata->dtr_state = 1;
 403
 404         /* Reset low level data toggle and start reading from endpoints */
 405         for (i = 0; i < N_IN_URB; i++) {
 406                 urb = portdata->in_urbs[i];
 407                 if (! urb)
 408                         continue;
 409                 if (urb->dev != serial->dev) {
 410                         dbg("%s: dev %p != %p", __FUNCTION__,
 411                                 urb->dev, serial->dev);
 412                         continue;
 413                 }
 414
 415                 /*
 416                  * make sure endpoint data toggle is synchronized with the
 417                  * device
 418                  */
 419                 usb_clear_halt(urb->dev, urb->pipe);
 420
 421                 err = usb_submit_urb(urb, GFP_KERNEL);
 422                 if (err) {
 423                         dbg("%s: submit urb %d failed (%d) %d",
 424                                 __FUNCTION__, i, err,
 425                                 urb->transfer_buffer_length);
 426                 }
 427         }
 428
 429         /* Reset low level data toggle on out endpoints */
 430         for (i = 0; i < N_OUT_URB; i++) {
 431                 urb = portdata->out_urbs[i];
 432                 if (! urb)
 433                         continue;
 434                 urb->dev = serial->dev;
 435                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 436                                 usb_pipeout(urb->pipe), 0); */
 437         }
 438
 439         port->tty->low_latency = 1;
 440
 441         sierra_send_setup(port);
 442
 443         return (0);
 444 }
 445
 446 static inline void stop_urb(struct urb *urb)
 447 {
 448         if (urb && urb->status == -EINPROGRESS)
 449                 usb_kill_urb(urb);
 450 }
 451
 452 static void sierra_close(struct usb_serial_port *port, struct file *filp)
 453 {
 454         int i;
 455         struct usb_serial *serial = port->serial;
 456         struct sierra_port_private *portdata;
 457
 458         dbg("%s", __FUNCTION__);
 459         portdata = usb_get_serial_port_data(port);
 460
 461         portdata->rts_state = 0;
 462         portdata->dtr_state = 0;
 463
 464         if (serial->dev) {
 465                 sierra_send_setup(port);
 466
 467                 /* Stop reading/writing urbs */
 468                 for (i = 0; i < N_IN_URB; i++)
 469                         stop_urb(portdata->in_urbs[i]);
 470                 for (i = 0; i < N_OUT_URB; i++)
 471                         stop_urb(portdata->out_urbs[i]);
 472         }
 473         port->tty = NULL;
 474 }
 475
 476 /* Helper functions used by sierra_setup_urbs */
 477 static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint,
 478                                     int dir, void *ctx, char *buf, int len,
 479                                     usb_complete_t callback)
 480 {
 481         struct urb *urb;
 482
 483         if (endpoint == -1)
 484                 return NULL;            /* endpoint not needed */
 485
 486         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 487         if (urb == NULL) {
 488                 dbg("%s: alloc for endpoint %d failed.", __FUNCTION__, endpoint);
 489                 return NULL;
 490         }
 491
 492                 /* Fill URB using supplied data. */
 493         usb_fill_bulk_urb(urb, serial->dev,
 494                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 495                       buf, len, callback, ctx);
 496
 497         return urb;
 498 }
 499
 500 /* Setup urbs */
 501 static void sierra_setup_urbs(struct usb_serial *serial)
 502 {
 503         int i,j;
 504         struct usb_serial_port *port;
 505         struct sierra_port_private *portdata;
 506
 507         dbg("%s", __FUNCTION__);
 508
 509         for (i = 0; i < serial->num_ports; i++) {
 510                 port = serial->port[i];
 511                 portdata = usb_get_serial_port_data(port);
 512
 513         /* Do indat endpoints first */
 514                 for (j = 0; j < N_IN_URB; ++j) {
 515                         portdata->in_urbs[j] = sierra_setup_urb (serial,
 516                         port->bulk_in_endpointAddress, USB_DIR_IN, port,
 517                         portdata->in_buffer[j], IN_BUFLEN, sierra_indat_callback);
 518                 }
 519
 520                 /* outdat endpoints */
 521                 for (j = 0; j < N_OUT_URB; ++j) {
 522                         portdata->out_urbs[j] = sierra_setup_urb (serial,
 523                         port->bulk_out_endpointAddress, USB_DIR_OUT, port,
 524                         portdata->out_buffer[j], OUT_BUFLEN, sierra_outdat_callback);
 525                 }
 526         }
 527 }
 528
 529 static int sierra_startup(struct usb_serial *serial)
 530 {
 531         int i, err;
 532         struct usb_serial_port *port;
 533         struct sierra_port_private *portdata;
 534
 535         dbg("%s", __FUNCTION__);
 536
 537         /* Now setup per port private data */
 538         for (i = 0; i < serial->num_ports; i++) {
 539                 port = serial->port[i];
 540                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
 541                 if (!portdata) {
 542                         dbg("%s: kmalloc for sierra_port_private (%d) failed!.",
 543                                         __FUNCTION__, i);
 544                         return (1);
 545                 }
 546
 547                 usb_set_serial_port_data(port, portdata);
 548
 549                 if (! port->interrupt_in_urb)
 550                         continue;
 551                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 552                 if (err)
 553                         dbg("%s: submit irq_in urb failed %d",
 554                                 __FUNCTION__, err);
 555         }
 556
 557         sierra_setup_urbs(serial);
 558
 559         return (0);
 560 }
 561
 562 static void sierra_shutdown(struct usb_serial *serial)
 563 {
 564         int i, j;
 565         struct usb_serial_port *port;
 566         struct sierra_port_private *portdata;
 567
 568         dbg("%s", __FUNCTION__);
 569
 570         /* Stop reading/writing urbs */
 571         for (i = 0; i < serial->num_ports; ++i) {
 572                 port = serial->port[i];
 573                 portdata = usb_get_serial_port_data(port);
 574                 for (j = 0; j < N_IN_URB; j++)
 575                         stop_urb(portdata->in_urbs[j]);
 576                 for (j = 0; j < N_OUT_URB; j++)
 577                         stop_urb(portdata->out_urbs[j]);
 578         }
 579
 580         /* Now free them */
 581         for (i = 0; i < serial->num_ports; ++i) {
 582                 port = serial->port[i];
 583                 portdata = usb_get_serial_port_data(port);
 584
 585                 for (j = 0; j < N_IN_URB; j++) {
 586                         if (portdata->in_urbs[j]) {
 587                                 usb_free_urb(portdata->in_urbs[j]);
 588                                 portdata->in_urbs[j] = NULL;
 589                         }
 590                 }
 591                 for (j = 0; j < N_OUT_URB; j++) {
 592                         if (portdata->out_urbs[j]) {
 593                                 usb_free_urb(portdata->out_urbs[j]);
 594                                 portdata->out_urbs[j] = NULL;
 595                         }
 596                 }
 597         }
 598
 599         /* Now free per port private data */
 600         for (i = 0; i < serial->num_ports; i++) {
 601                 port = serial->port[i];
 602                 kfree(usb_get_serial_port_data(port));
 603         }
 604 }
 605
 606 static struct usb_serial_driver sierra_1port_device = {
 607         .driver = {
 608                 .owner =        THIS_MODULE,
 609                 .name =         "sierra1",
 610         },
 611         .description       = "Sierra USB modem (1 port)",
 612         .id_table          = id_table_1port,
 613         .num_interrupt_in  = NUM_DONT_CARE,
 614         .num_bulk_in       = 1,
 615         .num_bulk_out      = 1,
 616         .num_ports         = 1,
 617         .open              = sierra_open,
 618         .close             = sierra_close,
 619         .write             = sierra_write,
 620         .write_room        = sierra_write_room,
 621         .chars_in_buffer   = sierra_chars_in_buffer,
 622         .throttle          = sierra_rx_throttle,
 623         .unthrottle        = sierra_rx_unthrottle,
 624         .ioctl             = sierra_ioctl,
 625         .set_termios       = sierra_set_termios,
 626         .break_ctl         = sierra_break_ctl,
 627         .tiocmget          = sierra_tiocmget,
 628         .tiocmset          = sierra_tiocmset,
 629         .attach            = sierra_startup,
 630         .shutdown          = sierra_shutdown,
 631         .read_int_callback = sierra_instat_callback,
 632 };
 633
 634 static struct usb_serial_driver sierra_3port_device = {
 635         .driver = {
 636                 .owner =        THIS_MODULE,
 637                 .name =         "sierra3",
 638         },
 639         .description       = "Sierra USB modem (3 port)",
 640         .id_table          = id_table_3port,
 641         .num_interrupt_in  = NUM_DONT_CARE,
 642         .num_bulk_in       = 3,
 643         .num_bulk_out      = 3,
 644         .num_ports         = 3,
 645         .open              = sierra_open,
 646         .close             = sierra_close,
 647         .write             = sierra_write,
 648         .write_room        = sierra_write_room,
 649         .chars_in_buffer   = sierra_chars_in_buffer,
 650         .throttle          = sierra_rx_throttle,
 651         .unthrottle        = sierra_rx_unthrottle,
 652         .ioctl             = sierra_ioctl,
 653         .set_termios       = sierra_set_termios,
 654         .break_ctl         = sierra_break_ctl,
 655         .tiocmget          = sierra_tiocmget,
 656         .tiocmset          = sierra_tiocmset,
 657         .attach            = sierra_startup,
 658         .shutdown          = sierra_shutdown,
 659         .read_int_callback = sierra_instat_callback,
 660 };
 661
 662 /* Functions used by new usb-serial code. */
 663 static int __init sierra_init(void)
 664 {
 665         int retval;
 666         retval = usb_serial_register(&sierra_1port_device);
 667         if (retval)
 668                 goto failed_1port_device_register;
 669         retval = usb_serial_register(&sierra_3port_device);
 670         if (retval)
 671                 goto failed_3port_device_register;
 672
 673
 674         retval = usb_register(&sierra_driver);
 675         if (retval)
 676                 goto failed_driver_register;
 677
 678         info(DRIVER_DESC ": " DRIVER_VERSION);
 679
 680         return 0;
 681
 682 failed_driver_register:
 683         usb_serial_deregister(&sierra_3port_device);
 684 failed_3port_device_register:
 685         usb_serial_deregister(&sierra_1port_device);
 686 failed_1port_device_register:
 687         return retval;
 688 }
 689
 690 static void __exit sierra_exit(void)
 691 {
 692         usb_deregister (&sierra_driver);
 693         usb_serial_deregister(&sierra_1port_device);
 694         usb_serial_deregister(&sierra_3port_device);
 695 }
 696
 697 module_init(sierra_init);
 698 module_exit(sierra_exit);
 699
 700 MODULE_AUTHOR(DRIVER_AUTHOR);
 701 MODULE_DESCRIPTION(DRIVER_DESC);
 702 MODULE_VERSION(DRIVER_VERSION);
 703 MODULE_LICENSE("GPL");
 704
 705 #ifdef CONFIG_USB_DEBUG
 706 module_param(debug, bool, S_IRUGO | S_IWUSR);
 707 MODULE_PARM_DESC(debug, "Debug messages");
 708 #endif
 709