SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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, 0x0218) }, /* Sierra Wireless MC5720 */
  39         { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */
  40         { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */
  41         { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 for Europe */
  42         { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 */
  43         { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */
  44
  45         { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */
  46         { USB_DEVICE(0x0F3D, 0x0112) }, /* AirPrime/Sierra PC 5220 */
  47         { }
  48 };
  49 MODULE_DEVICE_TABLE(usb, id_table);
  50
  51 static struct usb_device_id id_table_1port [] = {
  52         { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */
  53         { USB_DEVICE(0x0F3D, 0x0112) }, /* AirPrime/Sierra PC 5220 */
  54         { }
  55 };
  56
  57 static struct usb_device_id id_table_3port [] = {
  58         { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */
  59         { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */
  60         { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */
  61         { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */
  62         { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */
  63         { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */
  64         { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */
  65         { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 for Europe */
  66         { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 */
  67         { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */
  68         { }
  69 };
  70
  71 static struct usb_driver sierra_driver = {
  72         .name       = "sierra",
  73         .probe      = usb_serial_probe,
  74         .disconnect = usb_serial_disconnect,
  75         .id_table   = id_table,
  76         .no_dynamic_id =        1,
  77 };
  78
  79
  80 static int debug;
  81
  82 /* per port private data */
  83 #define N_IN_URB        4
  84 #define N_OUT_URB       1
  85 #define IN_BUFLEN       4096
  86 #define OUT_BUFLEN      128
  87
  88 struct sierra_port_private {
  89         /* Input endpoints and buffer for this port */
  90         struct urb *in_urbs[N_IN_URB];
  91         char in_buffer[N_IN_URB][IN_BUFLEN];
  92         /* Output endpoints and buffer for this port */
  93         struct urb *out_urbs[N_OUT_URB];
  94         char out_buffer[N_OUT_URB][OUT_BUFLEN];
  95
  96         /* Settings for the port */
  97         int rts_state;  /* Handshaking pins (outputs) */
  98         int dtr_state;
  99         int cts_state;  /* Handshaking pins (inputs) */
 100         int dsr_state;
 101         int dcd_state;
 102         int ri_state;
 103
 104         unsigned long tx_start_time[N_OUT_URB];
 105 };
 106
 107 static int sierra_send_setup(struct usb_serial_port *port)
 108 {
 109         struct usb_serial *serial = port->serial;
 110         struct sierra_port_private *portdata;
 111
 112         dbg("%s", __FUNCTION__);
 113
 114         portdata = usb_get_serial_port_data(port);
 115
 116         if (port->tty) {
 117                 int val = 0;
 118                 if (portdata->dtr_state)
 119                         val |= 0x01;
 120                 if (portdata->rts_state)
 121                         val |= 0x02;
 122
 123                 return usb_control_msg(serial->dev,
 124                                 usb_rcvctrlpipe(serial->dev, 0),
 125                                 0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT);
 126         }
 127
 128         return 0;
 129 }
 130
 131 static void sierra_rx_throttle(struct usb_serial_port *port)
 132 {
 133         dbg("%s", __FUNCTION__);
 134 }
 135
 136 static void sierra_rx_unthrottle(struct usb_serial_port *port)
 137 {
 138         dbg("%s", __FUNCTION__);
 139 }
 140
 141 static void sierra_break_ctl(struct usb_serial_port *port, int break_state)
 142 {
 143         /* Unfortunately, I don't know how to send a break */
 144         dbg("%s", __FUNCTION__);
 145 }
 146
 147 static void sierra_set_termios(struct usb_serial_port *port,
 148                         struct ktermios *old_termios)
 149 {
 150         dbg("%s", __FUNCTION__);
 151
 152         sierra_send_setup(port);
 153 }
 154
 155 static int sierra_tiocmget(struct usb_serial_port *port, struct file *file)
 156 {
 157         unsigned int value;
 158         struct sierra_port_private *portdata;
 159
 160         portdata = usb_get_serial_port_data(port);
 161
 162         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
 163                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
 164                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
 165                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
 166                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
 167                 ((portdata->ri_state) ? TIOCM_RNG : 0);
 168
 169         return value;
 170 }
 171
 172 static int sierra_tiocmset(struct usb_serial_port *port, struct file *file,
 173                         unsigned int set, unsigned int clear)
 174 {
 175         struct sierra_port_private *portdata;
 176
 177         portdata = usb_get_serial_port_data(port);
 178
 179         if (set & TIOCM_RTS)
 180                 portdata->rts_state = 1;
 181         if (set & TIOCM_DTR)
 182                 portdata->dtr_state = 1;
 183
 184         if (clear & TIOCM_RTS)
 185                 portdata->rts_state = 0;
 186         if (clear & TIOCM_DTR)
 187                 portdata->dtr_state = 0;
 188         return sierra_send_setup(port);
 189 }
 190
 191 static int sierra_ioctl(struct usb_serial_port *port, struct file *file,
 192                         unsigned int cmd, unsigned long arg)
 193 {
 194         return -ENOIOCTLCMD;
 195 }
 196
 197 /* Write */
 198 static int sierra_write(struct usb_serial_port *port,
 199                         const unsigned char *buf, int count)
 200 {
 201         struct sierra_port_private *portdata;
 202         int i;
 203         int left, todo;
 204         struct urb *this_urb = NULL; /* spurious */
 205         int err;
 206
 207         portdata = usb_get_serial_port_data(port);
 208
 209         dbg("%s: write (%d chars)", __FUNCTION__, count);
 210
 211         i = 0;
 212         left = count;
 213         for (i=0; left > 0 && i < N_OUT_URB; i++) {
 214                 todo = left;
 215                 if (todo > OUT_BUFLEN)
 216                         todo = OUT_BUFLEN;
 217
 218                 this_urb = portdata->out_urbs[i];
 219                 if (this_urb->status == -EINPROGRESS) {
 220                         if (time_before(jiffies,
 221                                         portdata->tx_start_time[i] + 10 * HZ))
 222                                 continue;
 223                         usb_unlink_urb(this_urb);
 224                         continue;
 225                 }
 226                 if (this_urb->status != 0)
 227                         dbg("usb_write %p failed (err=%d)",
 228                                 this_urb, this_urb->status);
 229
 230                 dbg("%s: endpoint %d buf %d", __FUNCTION__,
 231                         usb_pipeendpoint(this_urb->pipe), i);
 232
 233                 /* send the data */
 234                 memcpy (this_urb->transfer_buffer, buf, todo);
 235                 this_urb->transfer_buffer_length = todo;
 236
 237                 this_urb->dev = port->serial->dev;
 238                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 239                 if (err) {
 240                         dbg("usb_submit_urb %p (write bulk) failed "
 241                                 "(%d, has %d)", this_urb,
 242                                 err, this_urb->status);
 243                         continue;
 244                 }
 245                 portdata->tx_start_time[i] = jiffies;
 246                 buf += todo;
 247                 left -= todo;
 248         }
 249
 250         count -= left;
 251         dbg("%s: wrote (did %d)", __FUNCTION__, count);
 252         return count;
 253 }
 254
 255 static void sierra_indat_callback(struct urb *urb)
 256 {
 257         int err;
 258         int endpoint;
 259         struct usb_serial_port *port;
 260         struct tty_struct *tty;
 261         unsigned char *data = urb->transfer_buffer;
 262
 263         dbg("%s: %p", __FUNCTION__, urb);
 264
 265         endpoint = usb_pipeendpoint(urb->pipe);
 266         port = (struct usb_serial_port *) urb->context;
 267
 268         if (urb->status) {
 269                 dbg("%s: nonzero status: %d on endpoint %02x.",
 270                     __FUNCTION__, urb->status, endpoint);
 271         } else {
 272                 tty = port->tty;
 273                 if (urb->actual_length) {
 274                         tty_buffer_request_room(tty, urb->actual_length);
 275                         tty_insert_flip_string(tty, data, urb->actual_length);
 276                         tty_flip_buffer_push(tty);
 277                 } else {
 278                         dbg("%s: empty read urb received", __FUNCTION__);
 279                 }
 280
 281                 /* Resubmit urb so we continue receiving */
 282                 if (port->open_count && urb->status != -ESHUTDOWN) {
 283                         err = usb_submit_urb(urb, GFP_ATOMIC);
 284                         if (err)
 285                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 286                                         "(%d)", __FUNCTION__, err);
 287                 }
 288         }
 289         return;
 290 }
 291
 292 static void sierra_outdat_callback(struct urb *urb)
 293 {
 294         struct usb_serial_port *port;
 295
 296         dbg("%s", __FUNCTION__);
 297
 298         port = (struct usb_serial_port *) urb->context;
 299
 300         usb_serial_port_softint(port);
 301 }
 302
 303 static void sierra_instat_callback(struct urb *urb)
 304 {
 305         int err;
 306         struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
 307         struct sierra_port_private *portdata = usb_get_serial_port_data(port);
 308         struct usb_serial *serial = port->serial;
 309
 310         dbg("%s", __FUNCTION__);
 311         dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata);
 312
 313         if (urb->status == 0) {
 314                 struct usb_ctrlrequest *req_pkt =
 315                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 316
 317                 if (!req_pkt) {
 318                         dbg("%s: NULL req_pkt\n", __FUNCTION__);
 319                         return;
 320                 }
 321                 if ((req_pkt->bRequestType == 0xA1) &&
 322                                 (req_pkt->bRequest == 0x20)) {
 323                         int old_dcd_state;
 324                         unsigned char signals = *((unsigned char *)
 325                                         urb->transfer_buffer +
 326                                         sizeof(struct usb_ctrlrequest));
 327
 328                         dbg("%s: signal x%x", __FUNCTION__, signals);
 329
 330                         old_dcd_state = portdata->dcd_state;
 331                         portdata->cts_state = 1;
 332                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 333                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 334                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 335
 336                         if (port->tty && !C_CLOCAL(port->tty) &&
 337                                         old_dcd_state && !portdata->dcd_state)
 338                                 tty_hangup(port->tty);
 339                 } else {
 340                         dbg("%s: type %x req %x", __FUNCTION__,
 341                                 req_pkt->bRequestType,req_pkt->bRequest);
 342                 }
 343         } else
 344                 dbg("%s: error %d", __FUNCTION__, urb->status);
 345
 346         /* Resubmit urb so we continue receiving IRQ data */
 347         if (urb->status != -ESHUTDOWN) {
 348                 urb->dev = serial->dev;
 349                 err = usb_submit_urb(urb, GFP_ATOMIC);
 350                 if (err)
 351                         dbg("%s: resubmit intr urb failed. (%d)",
 352                                 __FUNCTION__, err);
 353         }
 354 }
 355
 356 static int sierra_write_room(struct usb_serial_port *port)
 357 {
 358         struct sierra_port_private *portdata;
 359         int i;
 360         int data_len = 0;
 361         struct urb *this_urb;
 362
 363         portdata = usb_get_serial_port_data(port);
 364
 365         for (i=0; i < N_OUT_URB; i++) {
 366                 this_urb = portdata->out_urbs[i];
 367                 if (this_urb && this_urb->status != -EINPROGRESS)
 368                         data_len += OUT_BUFLEN;
 369         }
 370
 371         dbg("%s: %d", __FUNCTION__, data_len);
 372         return data_len;
 373 }
 374
 375 static int sierra_chars_in_buffer(struct usb_serial_port *port)
 376 {
 377         struct sierra_port_private *portdata;
 378         int i;
 379         int data_len = 0;
 380         struct urb *this_urb;
 381
 382         portdata = usb_get_serial_port_data(port);
 383
 384         for (i=0; i < N_OUT_URB; i++) {
 385                 this_urb = portdata->out_urbs[i];
 386                 if (this_urb && this_urb->status == -EINPROGRESS)
 387                         data_len += this_urb->transfer_buffer_length;
 388         }
 389         dbg("%s: %d", __FUNCTION__, data_len);
 390         return data_len;
 391 }
 392
 393 static int sierra_open(struct usb_serial_port *port, struct file *filp)
 394 {
 395         struct sierra_port_private *portdata;
 396         struct usb_serial *serial = port->serial;
 397         int i, err;
 398         struct urb *urb;
 399
 400         portdata = usb_get_serial_port_data(port);
 401
 402         dbg("%s", __FUNCTION__);
 403
 404         /* Set some sane defaults */
 405         portdata->rts_state = 1;
 406         portdata->dtr_state = 1;
 407
 408         /* Reset low level data toggle and start reading from endpoints */
 409         for (i = 0; i < N_IN_URB; i++) {
 410                 urb = portdata->in_urbs[i];
 411                 if (! urb)
 412                         continue;
 413                 if (urb->dev != serial->dev) {
 414                         dbg("%s: dev %p != %p", __FUNCTION__,
 415                                 urb->dev, serial->dev);
 416                         continue;
 417                 }
 418
 419                 /*
 420                  * make sure endpoint data toggle is synchronized with the
 421                  * device
 422                  */
 423                 usb_clear_halt(urb->dev, urb->pipe);
 424
 425                 err = usb_submit_urb(urb, GFP_KERNEL);
 426                 if (err) {
 427                         dbg("%s: submit urb %d failed (%d) %d",
 428                                 __FUNCTION__, i, err,
 429                                 urb->transfer_buffer_length);
 430                 }
 431         }
 432
 433         /* Reset low level data toggle on out endpoints */
 434         for (i = 0; i < N_OUT_URB; i++) {
 435                 urb = portdata->out_urbs[i];
 436                 if (! urb)
 437                         continue;
 438                 urb->dev = serial->dev;
 439                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 440                                 usb_pipeout(urb->pipe), 0); */
 441         }
 442
 443         port->tty->low_latency = 1;
 444
 445         sierra_send_setup(port);
 446
 447         return (0);
 448 }
 449
 450 static inline void stop_urb(struct urb *urb)
 451 {
 452         if (urb && urb->status == -EINPROGRESS)
 453                 usb_kill_urb(urb);
 454 }
 455
 456 static void sierra_close(struct usb_serial_port *port, struct file *filp)
 457 {
 458         int i;
 459         struct usb_serial *serial = port->serial;
 460         struct sierra_port_private *portdata;
 461
 462         dbg("%s", __FUNCTION__);
 463         portdata = usb_get_serial_port_data(port);
 464
 465         portdata->rts_state = 0;
 466         portdata->dtr_state = 0;
 467
 468         if (serial->dev) {
 469                 sierra_send_setup(port);
 470
 471                 /* Stop reading/writing urbs */
 472                 for (i = 0; i < N_IN_URB; i++)
 473                         stop_urb(portdata->in_urbs[i]);
 474                 for (i = 0; i < N_OUT_URB; i++)
 475                         stop_urb(portdata->out_urbs[i]);
 476         }
 477         port->tty = NULL;
 478 }
 479
 480 /* Helper functions used by sierra_setup_urbs */
 481 static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint,
 482                                     int dir, void *ctx, char *buf, int len,
 483                                     usb_complete_t callback)
 484 {
 485         struct urb *urb;
 486
 487         if (endpoint == -1)
 488                 return NULL;            /* endpoint not needed */
 489
 490         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 491         if (urb == NULL) {
 492                 dbg("%s: alloc for endpoint %d failed.", __FUNCTION__, endpoint);
 493                 return NULL;
 494         }
 495
 496                 /* Fill URB using supplied data. */
 497         usb_fill_bulk_urb(urb, serial->dev,
 498                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 499                       buf, len, callback, ctx);
 500
 501         return urb;
 502 }
 503
 504 /* Setup urbs */
 505 static void sierra_setup_urbs(struct usb_serial *serial)
 506 {
 507         int i,j;
 508         struct usb_serial_port *port;
 509         struct sierra_port_private *portdata;
 510
 511         dbg("%s", __FUNCTION__);
 512
 513         for (i = 0; i < serial->num_ports; i++) {
 514                 port = serial->port[i];
 515                 portdata = usb_get_serial_port_data(port);
 516
 517         /* Do indat endpoints first */
 518                 for (j = 0; j < N_IN_URB; ++j) {
 519                         portdata->in_urbs[j] = sierra_setup_urb (serial,
 520                         port->bulk_in_endpointAddress, USB_DIR_IN, port,
 521                         portdata->in_buffer[j], IN_BUFLEN, sierra_indat_callback);
 522                 }
 523
 524                 /* outdat endpoints */
 525                 for (j = 0; j < N_OUT_URB; ++j) {
 526                         portdata->out_urbs[j] = sierra_setup_urb (serial,
 527                         port->bulk_out_endpointAddress, USB_DIR_OUT, port,
 528                         portdata->out_buffer[j], OUT_BUFLEN, sierra_outdat_callback);
 529                 }
 530         }
 531 }
 532
 533 static int sierra_startup(struct usb_serial *serial)
 534 {
 535         int i, err;
 536         struct usb_serial_port *port;
 537         struct sierra_port_private *portdata;
 538
 539         dbg("%s", __FUNCTION__);
 540
 541         /* Now setup per port private data */
 542         for (i = 0; i < serial->num_ports; i++) {
 543                 port = serial->port[i];
 544                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
 545                 if (!portdata) {
 546                         dbg("%s: kmalloc for sierra_port_private (%d) failed!.",
 547                                         __FUNCTION__, i);
 548                         return (1);
 549                 }
 550
 551                 usb_set_serial_port_data(port, portdata);
 552
 553                 if (! port->interrupt_in_urb)
 554                         continue;
 555                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 556                 if (err)
 557                         dbg("%s: submit irq_in urb failed %d",
 558                                 __FUNCTION__, err);
 559         }
 560
 561         sierra_setup_urbs(serial);
 562
 563         return (0);
 564 }
 565
 566 static void sierra_shutdown(struct usb_serial *serial)
 567 {
 568         int i, j;
 569         struct usb_serial_port *port;
 570         struct sierra_port_private *portdata;
 571
 572         dbg("%s", __FUNCTION__);
 573
 574         /* Stop reading/writing urbs */
 575         for (i = 0; i < serial->num_ports; ++i) {
 576                 port = serial->port[i];
 577                 portdata = usb_get_serial_port_data(port);
 578                 for (j = 0; j < N_IN_URB; j++)
 579                         stop_urb(portdata->in_urbs[j]);
 580                 for (j = 0; j < N_OUT_URB; j++)
 581                         stop_urb(portdata->out_urbs[j]);
 582         }
 583
 584         /* Now free them */
 585         for (i = 0; i < serial->num_ports; ++i) {
 586                 port = serial->port[i];
 587                 portdata = usb_get_serial_port_data(port);
 588
 589                 for (j = 0; j < N_IN_URB; j++) {
 590                         if (portdata->in_urbs[j]) {
 591                                 usb_free_urb(portdata->in_urbs[j]);
 592                                 portdata->in_urbs[j] = NULL;
 593                         }
 594                 }
 595                 for (j = 0; j < N_OUT_URB; j++) {
 596                         if (portdata->out_urbs[j]) {
 597                                 usb_free_urb(portdata->out_urbs[j]);
 598                                 portdata->out_urbs[j] = NULL;
 599                         }
 600                 }
 601         }
 602
 603         /* Now free per port private data */
 604         for (i = 0; i < serial->num_ports; i++) {
 605                 port = serial->port[i];
 606                 kfree(usb_get_serial_port_data(port));
 607         }
 608 }
 609
 610 static struct usb_serial_driver sierra_1port_device = {
 611         .driver = {
 612                 .owner =        THIS_MODULE,
 613                 .name =         "sierra1",
 614         },
 615         .description       = "Sierra USB modem (1 port)",
 616         .id_table          = id_table_1port,
 617         .num_interrupt_in  = NUM_DONT_CARE,
 618         .num_bulk_in       = 1,
 619         .num_bulk_out      = 1,
 620         .num_ports         = 1,
 621         .open              = sierra_open,
 622         .close             = sierra_close,
 623         .write             = sierra_write,
 624         .write_room        = sierra_write_room,
 625         .chars_in_buffer   = sierra_chars_in_buffer,
 626         .throttle          = sierra_rx_throttle,
 627         .unthrottle        = sierra_rx_unthrottle,
 628         .ioctl             = sierra_ioctl,
 629         .set_termios       = sierra_set_termios,
 630         .break_ctl         = sierra_break_ctl,
 631         .tiocmget          = sierra_tiocmget,
 632         .tiocmset          = sierra_tiocmset,
 633         .attach            = sierra_startup,
 634         .shutdown          = sierra_shutdown,
 635         .read_int_callback = sierra_instat_callback,
 636 };
 637
 638 static struct usb_serial_driver sierra_3port_device = {
 639         .driver = {
 640                 .owner =        THIS_MODULE,
 641                 .name =         "sierra3",
 642         },
 643         .description       = "Sierra USB modem (3 port)",
 644         .id_table          = id_table_3port,
 645         .num_interrupt_in  = NUM_DONT_CARE,
 646         .num_bulk_in       = 3,
 647         .num_bulk_out      = 3,
 648         .num_ports         = 3,
 649         .open              = sierra_open,
 650         .close             = sierra_close,
 651         .write             = sierra_write,
 652         .write_room        = sierra_write_room,
 653         .chars_in_buffer   = sierra_chars_in_buffer,
 654         .throttle          = sierra_rx_throttle,
 655         .unthrottle        = sierra_rx_unthrottle,
 656         .ioctl             = sierra_ioctl,
 657         .set_termios       = sierra_set_termios,
 658         .break_ctl         = sierra_break_ctl,
 659         .tiocmget          = sierra_tiocmget,
 660         .tiocmset          = sierra_tiocmset,
 661         .attach            = sierra_startup,
 662         .shutdown          = sierra_shutdown,
 663         .read_int_callback = sierra_instat_callback,
 664 };
 665
 666 /* Functions used by new usb-serial code. */
 667 static int __init sierra_init(void)
 668 {
 669         int retval;
 670         retval = usb_serial_register(&sierra_1port_device);
 671         if (retval)
 672                 goto failed_1port_device_register;
 673         retval = usb_serial_register(&sierra_3port_device);
 674         if (retval)
 675                 goto failed_3port_device_register;
 676
 677
 678         retval = usb_register(&sierra_driver);
 679         if (retval)
 680                 goto failed_driver_register;
 681
 682         info(DRIVER_DESC ": " DRIVER_VERSION);
 683
 684         return 0;
 685
 686 failed_driver_register:
 687         usb_serial_deregister(&sierra_3port_device);
 688 failed_3port_device_register:
 689         usb_serial_deregister(&sierra_1port_device);
 690 failed_1port_device_register:
 691         return retval;
 692 }
 693
 694 static void __exit sierra_exit(void)
 695 {
 696         usb_deregister (&sierra_driver);
 697         usb_serial_deregister(&sierra_1port_device);
 698         usb_serial_deregister(&sierra_3port_device);
 699 }
 700
 701 module_init(sierra_init);
 702 module_exit(sierra_exit);
 703
 704 MODULE_AUTHOR(DRIVER_AUTHOR);
 705 MODULE_DESCRIPTION(DRIVER_DESC);
 706 MODULE_VERSION(DRIVER_VERSION);
 707 MODULE_LICENSE("GPL");
 708
 709 #ifdef CONFIG_USB_DEBUG
 710 module_param(debug, bool, S_IRUGO | S_IWUSR);
 711 MODULE_PARM_DESC(debug, "Debug messages");
 712 #endif
 713