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 */
  17
  18 #define DRIVER_VERSION "v.1.0.6"
  19 #define DRIVER_AUTHOR "Kevin Lloyd <linux@sierrawireless.com>"
  20 #define DRIVER_DESC "USB Driver for Sierra Wireless USB modems"
  21
  22 #include <linux/kernel.h>
  23 #include <linux/jiffies.h>
  24 #include <linux/errno.h>
  25 #include <linux/tty.h>
  26 #include <linux/tty_flip.h>
  27 #include <linux/module.h>
  28 #include <linux/usb.h>
  29 #include <linux/usb/serial.h>
  30
  31
  32 static struct usb_device_id id_table [] = {
  33         { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */
  34         { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */
  35         { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */
  36         { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */
  37         { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */
  38         { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */
  39         { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */
  40         { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */
  41         { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */
  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, 0x0017) }, /* Sierra Wireless EM5625 */
  59         { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */
  60         { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */
  61         { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */
  62         { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */
  63         { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */
  64         { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */
  65         { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */
  66         { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */
  67         { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 */
  68         { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */
  69         { }
  70 };
  71
  72 static struct usb_driver sierra_driver = {
  73         .name       = "sierra",
  74         .probe      = usb_serial_probe,
  75         .disconnect = usb_serial_disconnect,
  76         .id_table   = id_table,
  77         .no_dynamic_id =        1,
  78 };
  79
  80
  81 static int debug;
  82
  83 /* per port private data */
  84 #define N_IN_URB        4
  85 #define N_OUT_URB       4
  86 #define IN_BUFLEN       4096
  87 #define OUT_BUFLEN      128
  88
  89 struct sierra_port_private {
  90         /* Input endpoints and buffer for this port */
  91         struct urb *in_urbs[N_IN_URB];
  92         char in_buffer[N_IN_URB][IN_BUFLEN];
  93         /* Output endpoints and buffer for this port */
  94         struct urb *out_urbs[N_OUT_URB];
  95         char out_buffer[N_OUT_URB][OUT_BUFLEN];
  96
  97         /* Settings for the port */
  98         int rts_state;  /* Handshaking pins (outputs) */
  99         int dtr_state;
 100         int cts_state;  /* Handshaking pins (inputs) */
 101         int dsr_state;
 102         int dcd_state;
 103         int ri_state;
 104
 105         unsigned long tx_start_time[N_OUT_URB];
 106 };
 107
 108 static int sierra_send_setup(struct usb_serial_port *port)
 109 {
 110         struct usb_serial *serial = port->serial;
 111         struct sierra_port_private *portdata;
 112
 113         dbg("%s", __FUNCTION__);
 114
 115         portdata = usb_get_serial_port_data(port);
 116
 117         if (port->tty) {
 118                 int val = 0;
 119                 if (portdata->dtr_state)
 120                         val |= 0x01;
 121                 if (portdata->rts_state)
 122                         val |= 0x02;
 123
 124                 return usb_control_msg(serial->dev,
 125                                 usb_rcvctrlpipe(serial->dev, 0),
 126                                 0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT);
 127         }
 128
 129         return 0;
 130 }
 131
 132 static void sierra_rx_throttle(struct usb_serial_port *port)
 133 {
 134         dbg("%s", __FUNCTION__);
 135 }
 136
 137 static void sierra_rx_unthrottle(struct usb_serial_port *port)
 138 {
 139         dbg("%s", __FUNCTION__);
 140 }
 141
 142 static void sierra_break_ctl(struct usb_serial_port *port, int break_state)
 143 {
 144         /* Unfortunately, I don't know how to send a break */
 145         dbg("%s", __FUNCTION__);
 146 }
 147
 148 static void sierra_set_termios(struct usb_serial_port *port,
 149                         struct ktermios *old_termios)
 150 {
 151         dbg("%s", __FUNCTION__);
 152
 153         sierra_send_setup(port);
 154 }
 155
 156 static int sierra_tiocmget(struct usb_serial_port *port, struct file *file)
 157 {
 158         unsigned int value;
 159         struct sierra_port_private *portdata;
 160
 161         portdata = usb_get_serial_port_data(port);
 162
 163         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
 164                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
 165                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
 166                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
 167                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
 168                 ((portdata->ri_state) ? TIOCM_RNG : 0);
 169
 170         return value;
 171 }
 172
 173 static int sierra_tiocmset(struct usb_serial_port *port, struct file *file,
 174                         unsigned int set, unsigned int clear)
 175 {
 176         struct sierra_port_private *portdata;
 177
 178         portdata = usb_get_serial_port_data(port);
 179
 180         if (set & TIOCM_RTS)
 181                 portdata->rts_state = 1;
 182         if (set & TIOCM_DTR)
 183                 portdata->dtr_state = 1;
 184
 185         if (clear & TIOCM_RTS)
 186                 portdata->rts_state = 0;
 187         if (clear & TIOCM_DTR)
 188                 portdata->dtr_state = 0;
 189         return sierra_send_setup(port);
 190 }
 191
 192 static int sierra_ioctl(struct usb_serial_port *port, struct file *file,
 193                         unsigned int cmd, unsigned long arg)
 194 {
 195         return -ENOIOCTLCMD;
 196 }
 197
 198 /* Write */
 199 static int sierra_write(struct usb_serial_port *port,
 200                         const unsigned char *buf, int count)
 201 {
 202         struct sierra_port_private *portdata;
 203         int i;
 204         int left, todo;
 205         struct urb *this_urb = NULL; /* spurious */
 206         int err;
 207
 208         portdata = usb_get_serial_port_data(port);
 209
 210         dbg("%s: write (%d chars)", __FUNCTION__, count);
 211
 212         i = 0;
 213         left = count;
 214         for (i=0; left > 0 && i < N_OUT_URB; i++) {
 215                 todo = left;
 216                 if (todo > OUT_BUFLEN)
 217                         todo = OUT_BUFLEN;
 218
 219                 this_urb = portdata->out_urbs[i];
 220                 if (this_urb->status == -EINPROGRESS) {
 221                         if (time_before(jiffies,
 222                                         portdata->tx_start_time[i] + 10 * HZ))
 223                                 continue;
 224                         usb_unlink_urb(this_urb);
 225                         continue;
 226                 }
 227                 if (this_urb->status != 0)
 228                         dbg("usb_write %p failed (err=%d)",
 229                                 this_urb, this_urb->status);
 230
 231                 dbg("%s: endpoint %d buf %d", __FUNCTION__,
 232                         usb_pipeendpoint(this_urb->pipe), i);
 233
 234                 /* send the data */
 235                 memcpy (this_urb->transfer_buffer, buf, todo);
 236                 this_urb->transfer_buffer_length = todo;
 237
 238                 this_urb->dev = port->serial->dev;
 239                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 240                 if (err) {
 241                         dbg("usb_submit_urb %p (write bulk) failed "
 242                                 "(%d, has %d)", this_urb,
 243                                 err, this_urb->status);
 244                         continue;
 245                 }
 246                 portdata->tx_start_time[i] = jiffies;
 247                 buf += todo;
 248                 left -= todo;
 249         }
 250
 251         count -= left;
 252         dbg("%s: wrote (did %d)", __FUNCTION__, count);
 253         return count;
 254 }
 255
 256 static void sierra_indat_callback(struct urb *urb)
 257 {
 258         int err;
 259         int endpoint;
 260         struct usb_serial_port *port;
 261         struct tty_struct *tty;
 262         unsigned char *data = urb->transfer_buffer;
 263
 264         dbg("%s: %p", __FUNCTION__, urb);
 265
 266         endpoint = usb_pipeendpoint(urb->pipe);
 267         port = (struct usb_serial_port *) urb->context;
 268
 269         if (urb->status) {
 270                 dbg("%s: nonzero status: %d on endpoint %02x.",
 271                     __FUNCTION__, urb->status, endpoint);
 272         } else {
 273                 tty = port->tty;
 274                 if (urb->actual_length) {
 275                         tty_buffer_request_room(tty, urb->actual_length);
 276                         tty_insert_flip_string(tty, data, urb->actual_length);
 277                         tty_flip_buffer_push(tty);
 278                 } else {
 279                         dbg("%s: empty read urb received", __FUNCTION__);
 280                 }
 281
 282                 /* Resubmit urb so we continue receiving */
 283                 if (port->open_count && urb->status != -ESHUTDOWN) {
 284                         err = usb_submit_urb(urb, GFP_ATOMIC);
 285                         if (err)
 286                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 287                                         "(%d)", __FUNCTION__, err);
 288                 }
 289         }
 290         return;
 291 }
 292
 293 static void sierra_outdat_callback(struct urb *urb)
 294 {
 295         struct usb_serial_port *port;
 296
 297         dbg("%s", __FUNCTION__);
 298
 299         port = (struct usb_serial_port *) urb->context;
 300
 301         usb_serial_port_softint(port);
 302 }
 303
 304 static void sierra_instat_callback(struct urb *urb)
 305 {
 306         int err;
 307         struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
 308         struct sierra_port_private *portdata = usb_get_serial_port_data(port);
 309         struct usb_serial *serial = port->serial;
 310
 311         dbg("%s", __FUNCTION__);
 312         dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata);
 313
 314         if (urb->status == 0) {
 315                 struct usb_ctrlrequest *req_pkt =
 316                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 317
 318                 if (!req_pkt) {
 319                         dbg("%s: NULL req_pkt\n", __FUNCTION__);
 320                         return;
 321                 }
 322                 if ((req_pkt->bRequestType == 0xA1) &&
 323                                 (req_pkt->bRequest == 0x20)) {
 324                         int old_dcd_state;
 325                         unsigned char signals = *((unsigned char *)
 326                                         urb->transfer_buffer +
 327                                         sizeof(struct usb_ctrlrequest));
 328
 329                         dbg("%s: signal x%x", __FUNCTION__, signals);
 330
 331                         old_dcd_state = portdata->dcd_state;
 332                         portdata->cts_state = 1;
 333                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 334                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 335                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 336
 337                         if (port->tty && !C_CLOCAL(port->tty) &&
 338                                         old_dcd_state && !portdata->dcd_state)
 339                                 tty_hangup(port->tty);
 340                 } else {
 341                         dbg("%s: type %x req %x", __FUNCTION__,
 342                                 req_pkt->bRequestType,req_pkt->bRequest);
 343                 }
 344         } else
 345                 dbg("%s: error %d", __FUNCTION__, urb->status);
 346
 347         /* Resubmit urb so we continue receiving IRQ data */
 348         if (urb->status != -ESHUTDOWN) {
 349                 urb->dev = serial->dev;
 350                 err = usb_submit_urb(urb, GFP_ATOMIC);
 351                 if (err)
 352                         dbg("%s: resubmit intr urb failed. (%d)",
 353                                 __FUNCTION__, err);
 354         }
 355 }
 356
 357 static int sierra_write_room(struct usb_serial_port *port)
 358 {
 359         struct sierra_port_private *portdata;
 360         int i;
 361         int data_len = 0;
 362         struct urb *this_urb;
 363
 364         portdata = usb_get_serial_port_data(port);
 365
 366         for (i=0; i < N_OUT_URB; i++) {
 367                 this_urb = portdata->out_urbs[i];
 368                 if (this_urb && this_urb->status != -EINPROGRESS)
 369                         data_len += OUT_BUFLEN;
 370         }
 371
 372         dbg("%s: %d", __FUNCTION__, data_len);
 373         return data_len;
 374 }
 375
 376 static int sierra_chars_in_buffer(struct usb_serial_port *port)
 377 {
 378         struct sierra_port_private *portdata;
 379         int i;
 380         int data_len = 0;
 381         struct urb *this_urb;
 382
 383         portdata = usb_get_serial_port_data(port);
 384
 385         for (i=0; i < N_OUT_URB; i++) {
 386                 this_urb = portdata->out_urbs[i];
 387                 if (this_urb && this_urb->status == -EINPROGRESS)
 388                         data_len += this_urb->transfer_buffer_length;
 389         }
 390         dbg("%s: %d", __FUNCTION__, data_len);
 391         return data_len;
 392 }
 393
 394 static int sierra_open(struct usb_serial_port *port, struct file *filp)
 395 {
 396         struct sierra_port_private *portdata;
 397         struct usb_serial *serial = port->serial;
 398         int i, err;
 399         struct urb *urb;
 400         int result;
 401         __u16 set_mode_dzero = 0x0000;
 402
 403         portdata = usb_get_serial_port_data(port);
 404
 405         dbg("%s", __FUNCTION__);
 406
 407         /* Set some sane defaults */
 408         portdata->rts_state = 1;
 409         portdata->dtr_state = 1;
 410
 411         /* Reset low level data toggle and start reading from endpoints */
 412         for (i = 0; i < N_IN_URB; i++) {
 413                 urb = portdata->in_urbs[i];
 414                 if (! urb)
 415                         continue;
 416                 if (urb->dev != serial->dev) {
 417                         dbg("%s: dev %p != %p", __FUNCTION__,
 418                                 urb->dev, serial->dev);
 419                         continue;
 420                 }
 421
 422                 /*
 423                  * make sure endpoint data toggle is synchronized with the
 424                  * device
 425                  */
 426                 usb_clear_halt(urb->dev, urb->pipe);
 427
 428                 err = usb_submit_urb(urb, GFP_KERNEL);
 429                 if (err) {
 430                         dbg("%s: submit urb %d failed (%d) %d",
 431                                 __FUNCTION__, i, err,
 432                                 urb->transfer_buffer_length);
 433                 }
 434         }
 435
 436         /* Reset low level data toggle on out endpoints */
 437         for (i = 0; i < N_OUT_URB; i++) {
 438                 urb = portdata->out_urbs[i];
 439                 if (! urb)
 440                         continue;
 441                 urb->dev = serial->dev;
 442                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 443                                 usb_pipeout(urb->pipe), 0); */
 444         }
 445
 446         port->tty->low_latency = 1;
 447
 448         /* set mode to D0 */
 449         result = usb_control_msg(serial->dev,
 450                                  usb_rcvctrlpipe(serial->dev, 0),
 451                                  0x00, 0x40, set_mode_dzero, 0, NULL,
 452                                  0, USB_CTRL_SET_TIMEOUT);
 453
 454         sierra_send_setup(port);
 455
 456         return (0);
 457 }
 458
 459 static inline void stop_urb(struct urb *urb)
 460 {
 461         if (urb && urb->status == -EINPROGRESS)
 462                 usb_kill_urb(urb);
 463 }
 464
 465 static void sierra_close(struct usb_serial_port *port, struct file *filp)
 466 {
 467         int i;
 468         struct usb_serial *serial = port->serial;
 469         struct sierra_port_private *portdata;
 470
 471         dbg("%s", __FUNCTION__);
 472         portdata = usb_get_serial_port_data(port);
 473
 474         portdata->rts_state = 0;
 475         portdata->dtr_state = 0;
 476
 477         if (serial->dev) {
 478                 sierra_send_setup(port);
 479
 480                 /* Stop reading/writing urbs */
 481                 for (i = 0; i < N_IN_URB; i++)
 482                         stop_urb(portdata->in_urbs[i]);
 483                 for (i = 0; i < N_OUT_URB; i++)
 484                         stop_urb(portdata->out_urbs[i]);
 485         }
 486         port->tty = NULL;
 487 }
 488
 489 /* Helper functions used by sierra_setup_urbs */
 490 static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint,
 491                                     int dir, void *ctx, char *buf, int len,
 492                                     usb_complete_t callback)
 493 {
 494         struct urb *urb;
 495
 496         if (endpoint == -1)
 497                 return NULL;            /* endpoint not needed */
 498
 499         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 500         if (urb == NULL) {
 501                 dbg("%s: alloc for endpoint %d failed.", __FUNCTION__, endpoint);
 502                 return NULL;
 503         }
 504
 505                 /* Fill URB using supplied data. */
 506         usb_fill_bulk_urb(urb, serial->dev,
 507                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 508                       buf, len, callback, ctx);
 509
 510         return urb;
 511 }
 512
 513 /* Setup urbs */
 514 static void sierra_setup_urbs(struct usb_serial *serial)
 515 {
 516         int i,j;
 517         struct usb_serial_port *port;
 518         struct sierra_port_private *portdata;
 519
 520         dbg("%s", __FUNCTION__);
 521
 522         for (i = 0; i < serial->num_ports; i++) {
 523                 port = serial->port[i];
 524                 portdata = usb_get_serial_port_data(port);
 525
 526         /* Do indat endpoints first */
 527                 for (j = 0; j < N_IN_URB; ++j) {
 528                         portdata->in_urbs[j] = sierra_setup_urb (serial,
 529                         port->bulk_in_endpointAddress, USB_DIR_IN, port,
 530                         portdata->in_buffer[j], IN_BUFLEN, sierra_indat_callback);
 531                 }
 532
 533                 /* outdat endpoints */
 534                 for (j = 0; j < N_OUT_URB; ++j) {
 535                         portdata->out_urbs[j] = sierra_setup_urb (serial,
 536                         port->bulk_out_endpointAddress, USB_DIR_OUT, port,
 537                         portdata->out_buffer[j], OUT_BUFLEN, sierra_outdat_callback);
 538                 }
 539         }
 540 }
 541
 542 static int sierra_startup(struct usb_serial *serial)
 543 {
 544         int i, err;
 545         struct usb_serial_port *port;
 546         struct sierra_port_private *portdata;
 547
 548         dbg("%s", __FUNCTION__);
 549
 550         /* Now setup per port private data */
 551         for (i = 0; i < serial->num_ports; i++) {
 552                 port = serial->port[i];
 553                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
 554                 if (!portdata) {
 555                         dbg("%s: kmalloc for sierra_port_private (%d) failed!.",
 556                                         __FUNCTION__, i);
 557                         return (1);
 558                 }
 559
 560                 usb_set_serial_port_data(port, portdata);
 561
 562                 if (! port->interrupt_in_urb)
 563                         continue;
 564                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 565                 if (err)
 566                         dbg("%s: submit irq_in urb failed %d",
 567                                 __FUNCTION__, err);
 568         }
 569
 570         sierra_setup_urbs(serial);
 571
 572         return (0);
 573 }
 574
 575 static void sierra_shutdown(struct usb_serial *serial)
 576 {
 577         int i, j;
 578         struct usb_serial_port *port;
 579         struct sierra_port_private *portdata;
 580
 581         dbg("%s", __FUNCTION__);
 582
 583         /* Stop reading/writing urbs */
 584         for (i = 0; i < serial->num_ports; ++i) {
 585                 port = serial->port[i];
 586                 portdata = usb_get_serial_port_data(port);
 587                 for (j = 0; j < N_IN_URB; j++)
 588                         stop_urb(portdata->in_urbs[j]);
 589                 for (j = 0; j < N_OUT_URB; j++)
 590                         stop_urb(portdata->out_urbs[j]);
 591         }
 592
 593         /* Now free them */
 594         for (i = 0; i < serial->num_ports; ++i) {
 595                 port = serial->port[i];
 596                 portdata = usb_get_serial_port_data(port);
 597
 598                 for (j = 0; j < N_IN_URB; j++) {
 599                         if (portdata->in_urbs[j]) {
 600                                 usb_free_urb(portdata->in_urbs[j]);
 601                                 portdata->in_urbs[j] = NULL;
 602                         }
 603                 }
 604                 for (j = 0; j < N_OUT_URB; j++) {
 605                         if (portdata->out_urbs[j]) {
 606                                 usb_free_urb(portdata->out_urbs[j]);
 607                                 portdata->out_urbs[j] = NULL;
 608                         }
 609                 }
 610         }
 611
 612         /* Now free per port private data */
 613         for (i = 0; i < serial->num_ports; i++) {
 614                 port = serial->port[i];
 615                 kfree(usb_get_serial_port_data(port));
 616         }
 617 }
 618
 619 static struct usb_serial_driver sierra_1port_device = {
 620         .driver = {
 621                 .owner =        THIS_MODULE,
 622                 .name =         "sierra1",
 623         },
 624         .description       = "Sierra USB modem (1 port)",
 625         .id_table          = id_table_1port,
 626         .usb_driver        = &sierra_driver,
 627         .num_interrupt_in  = NUM_DONT_CARE,
 628         .num_bulk_in       = 1,
 629         .num_bulk_out      = 1,
 630         .num_ports         = 1,
 631         .open              = sierra_open,
 632         .close             = sierra_close,
 633         .write             = sierra_write,
 634         .write_room        = sierra_write_room,
 635         .chars_in_buffer   = sierra_chars_in_buffer,
 636         .throttle          = sierra_rx_throttle,
 637         .unthrottle        = sierra_rx_unthrottle,
 638         .ioctl             = sierra_ioctl,
 639         .set_termios       = sierra_set_termios,
 640         .break_ctl         = sierra_break_ctl,
 641         .tiocmget          = sierra_tiocmget,
 642         .tiocmset          = sierra_tiocmset,
 643         .attach            = sierra_startup,
 644         .shutdown          = sierra_shutdown,
 645         .read_int_callback = sierra_instat_callback,
 646 };
 647
 648 static struct usb_serial_driver sierra_3port_device = {
 649         .driver = {
 650                 .owner =        THIS_MODULE,
 651                 .name =         "sierra3",
 652         },
 653         .description       = "Sierra USB modem (3 port)",
 654         .id_table          = id_table_3port,
 655         .usb_driver        = &sierra_driver,
 656         .num_interrupt_in  = NUM_DONT_CARE,
 657         .num_bulk_in       = 3,
 658         .num_bulk_out      = 3,
 659         .num_ports         = 3,
 660         .open              = sierra_open,
 661         .close             = sierra_close,
 662         .write             = sierra_write,
 663         .write_room        = sierra_write_room,
 664         .chars_in_buffer   = sierra_chars_in_buffer,
 665         .throttle          = sierra_rx_throttle,
 666         .unthrottle        = sierra_rx_unthrottle,
 667         .ioctl             = sierra_ioctl,
 668         .set_termios       = sierra_set_termios,
 669         .break_ctl         = sierra_break_ctl,
 670         .tiocmget          = sierra_tiocmget,
 671         .tiocmset          = sierra_tiocmset,
 672         .attach            = sierra_startup,
 673         .shutdown          = sierra_shutdown,
 674         .read_int_callback = sierra_instat_callback,
 675 };
 676
 677 /* Functions used by new usb-serial code. */
 678 static int __init sierra_init(void)
 679 {
 680         int retval;
 681         retval = usb_serial_register(&sierra_1port_device);
 682         if (retval)
 683                 goto failed_1port_device_register;
 684         retval = usb_serial_register(&sierra_3port_device);
 685         if (retval)
 686                 goto failed_3port_device_register;
 687
 688
 689         retval = usb_register(&sierra_driver);
 690         if (retval)
 691                 goto failed_driver_register;
 692
 693         info(DRIVER_DESC ": " DRIVER_VERSION);
 694
 695         return 0;
 696
 697 failed_driver_register:
 698         usb_serial_deregister(&sierra_3port_device);
 699 failed_3port_device_register:
 700         usb_serial_deregister(&sierra_1port_device);
 701 failed_1port_device_register:
 702         return retval;
 703 }
 704
 705 static void __exit sierra_exit(void)
 706 {
 707         usb_deregister (&sierra_driver);
 708         usb_serial_deregister(&sierra_1port_device);
 709         usb_serial_deregister(&sierra_3port_device);
 710 }
 711
 712 module_init(sierra_init);
 713 module_exit(sierra_exit);
 714
 715 MODULE_AUTHOR(DRIVER_AUTHOR);
 716 MODULE_DESCRIPTION(DRIVER_DESC);
 717 MODULE_VERSION(DRIVER_VERSION);
 718 MODULE_LICENSE("GPL");
 719
 720 #ifdef CONFIG_USB_DEBUG
 721 module_param(debug, bool, S_IRUGO | S_IWUSR);
 722 MODULE_PARM_DESC(debug, "Debug messages");
 723 #endif
 724