1 /* 2 USB Driver for Sierra Wireless 3 4 Copyright (C) 2006, 2007, 2008 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 #define DRIVER_VERSION "v.1.2.7" 18 #define DRIVER_AUTHOR "Kevin Lloyd <linux@sierrawireless.com>" 19 #define DRIVER_DESC "USB Driver for Sierra Wireless USB modems" 20 21 #include <linux/kernel.h> 22 #include <linux/jiffies.h> 23 #include <linux/errno.h> 24 #include <linux/tty.h> 25 #include <linux/tty_flip.h> 26 #include <linux/module.h> 27 #include <linux/usb.h> 28 #include <linux/usb/serial.h> 29 #include <linux/usb/ch9.h> 30 31 #define SWIMS_USB_REQUEST_SetPower 0x00 32 #define SWIMS_USB_REQUEST_SetNmea 0x07 33 #define SWIMS_USB_REQUEST_SetMode 0x0B 34 #define SWIMS_USB_REQUEST_TYPE_VSC_SET 0x40 35 #define SWIMS_SET_MODE_Modem 0x0001 36 37 /* per port private data */ 38 #define N_IN_URB 4 39 #define N_OUT_URB 4 40 #define IN_BUFLEN 4096 41 42 static int debug; 43 static int nmea; 44 static int truinstall = 1; 45 46 enum devicetype { 47 DEVICE_3_PORT = 0, 48 DEVICE_1_PORT = 1, 49 DEVICE_INSTALLER = 2, 50 }; 51 52 static int sierra_set_power_state(struct usb_device *udev, __u16 swiState) 53 { 54 int result; 55 dev_dbg(&udev->dev, "%s", "SET POWER STATE\n"); 56 result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 57 SWIMS_USB_REQUEST_SetPower, /* __u8 request */ 58 SWIMS_USB_REQUEST_TYPE_VSC_SET, /* __u8 request type */ 59 swiState, /* __u16 value */ 60 0, /* __u16 index */ 61 NULL, /* void *data */ 62 0, /* __u16 size */ 63 USB_CTRL_SET_TIMEOUT); /* int timeout */ 64 return result; 65 } 66 67 static int sierra_set_ms_mode(struct usb_device *udev, __u16 eSWocMode) 68 { 69 int result; 70 dev_dbg(&udev->dev, "%s", "DEVICE MODE SWITCH\n"); 71 result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 72 SWIMS_USB_REQUEST_SetMode, /* __u8 request */ 73 SWIMS_USB_REQUEST_TYPE_VSC_SET, /* __u8 request type */ 74 eSWocMode, /* __u16 value */ 75 0x0000, /* __u16 index */ 76 NULL, /* void *data */ 77 0, /* __u16 size */ 78 USB_CTRL_SET_TIMEOUT); /* int timeout */ 79 return result; 80 } 81 82 static int sierra_vsc_set_nmea(struct usb_device *udev, __u16 enable) 83 { 84 int result; 85 dev_dbg(&udev->dev, "%s", "NMEA Enable sent\n"); 86 result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 87 SWIMS_USB_REQUEST_SetNmea, /* __u8 request */ 88 SWIMS_USB_REQUEST_TYPE_VSC_SET, /* __u8 request type */ 89 enable, /* __u16 value */ 90 0x0000, /* __u16 index */ 91 NULL, /* void *data */ 92 0, /* __u16 size */ 93 USB_CTRL_SET_TIMEOUT); /* int timeout */ 94 return result; 95 } 96 97 static int sierra_calc_num_ports(struct usb_serial *serial) 98 { 99 int result; 100 int *num_ports = usb_get_serial_data(serial); 101 102 result = *num_ports; 103 104 if (result) { 105 kfree(num_ports); 106 usb_set_serial_data(serial, NULL); 107 } 108 109 return result; 110 } 111 112 static int sierra_probe(struct usb_serial *serial, 113 const struct usb_device_id *id) 114 { 115 int result = 0; 116 struct usb_device *udev; 117 int *num_ports; 118 u8 ifnum; 119 120 num_ports = kmalloc(sizeof(*num_ports), GFP_KERNEL); 121 if (!num_ports) 122 return -ENOMEM; 123 124 ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber; 125 udev = serial->dev; 126 127 /* Check if in installer mode */ 128 if (truinstall && id->driver_info == DEVICE_INSTALLER) { 129 dev_dbg(&udev->dev, "%s", "FOUND TRU-INSTALL DEVICE(SW)\n"); 130 result = sierra_set_ms_mode(udev, SWIMS_SET_MODE_Modem); 131 /* Don't bind to the device when in installer mode */ 132 kfree(num_ports); 133 return -EIO; 134 } else if (id->driver_info == DEVICE_1_PORT) 135 *num_ports = 1; 136 else if (ifnum == 0x99) 137 *num_ports = 0; 138 else 139 *num_ports = 3; 140 /* 141 * save off our num_ports info so that we can use it in the 142 * calc_num_ports callback 143 */ 144 usb_set_serial_data(serial, (void *)num_ports); 145 146 return result; 147 } 148 149 static struct usb_device_id id_table [] = { 150 { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ 151 { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ 152 { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ 153 { USB_DEVICE(0x0f30, 0x1b1d) }, /* Sierra Wireless MC5720 */ 154 { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ 155 { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */ 156 { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ 157 { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ 158 { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */ 159 { USB_DEVICE(0x1199, 0x0023) }, /* Sierra Wireless AirCard */ 160 161 { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ 162 { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ 163 { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ 164 { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ 165 { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 (Thinkpad internal) */ 166 { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ 167 { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780*/ 168 { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781*/ 169 { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ 170 { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ 171 { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */ 172 { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */ 173 { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */ 174 { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ 175 176 { USB_DEVICE(0x1199, 0x6468) }, /* Sierra Wireless MP3G - EVDO */ 177 { USB_DEVICE(0x1199, 0x6469) }, /* Sierra Wireless MP3G - UMTS/HSPA */ 178 179 { USB_DEVICE(0x1199, 0x0112), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 580 */ 180 { USB_DEVICE(0x0F3D, 0x0112), .driver_info = DEVICE_1_PORT }, /* Airprime/Sierra PC 5220 */ 181 { USB_DEVICE(0x05C6, 0x6613), .driver_info = DEVICE_1_PORT }, /* Onda H600/ZTE MF330 */ 182 183 { USB_DEVICE(0x1199, 0x0FFF), .driver_info = DEVICE_INSTALLER}, 184 { } 185 }; 186 MODULE_DEVICE_TABLE(usb, id_table); 187 188 static struct usb_driver sierra_driver = { 189 .name = "sierra", 190 .probe = usb_serial_probe, 191 .disconnect = usb_serial_disconnect, 192 .id_table = id_table, 193 .no_dynamic_id = 1, 194 }; 195 196 struct sierra_port_private { 197 spinlock_t lock; /* lock the structure */ 198 int outstanding_urbs; /* number of out urbs in flight */ 199 200 /* Input endpoints and buffer for this port */ 201 struct urb *in_urbs[N_IN_URB]; 202 char in_buffer[N_IN_URB][IN_BUFLEN]; 203 204 /* Settings for the port */ 205 int rts_state; /* Handshaking pins (outputs) */ 206 int dtr_state; 207 int cts_state; /* Handshaking pins (inputs) */ 208 int dsr_state; 209 int dcd_state; 210 int ri_state; 211 }; 212 213 static int sierra_send_setup(struct usb_serial_port *port) 214 { 215 struct usb_serial *serial = port->serial; 216 struct sierra_port_private *portdata; 217 __u16 interface = 0; 218 219 dbg("%s", __FUNCTION__); 220 221 portdata = usb_get_serial_port_data(port); 222 223 if (port->tty) { 224 int val = 0; 225 if (portdata->dtr_state) 226 val |= 0x01; 227 if (portdata->rts_state) 228 val |= 0x02; 229 230 /* Determine which port is targeted */ 231 if (port->bulk_out_endpointAddress == 2) 232 interface = 0; 233 else if (port->bulk_out_endpointAddress == 4) 234 interface = 1; 235 else if (port->bulk_out_endpointAddress == 5) 236 interface = 2; 237 238 return usb_control_msg(serial->dev, 239 usb_rcvctrlpipe(serial->dev, 0), 240 0x22, 0x21, val, interface, 241 NULL, 0, USB_CTRL_SET_TIMEOUT); 242 } 243 244 return 0; 245 } 246 247 static void sierra_rx_throttle(struct usb_serial_port *port) 248 { 249 dbg("%s", __FUNCTION__); 250 } 251 252 static void sierra_rx_unthrottle(struct usb_serial_port *port) 253 { 254 dbg("%s", __FUNCTION__); 255 } 256 257 static void sierra_break_ctl(struct usb_serial_port *port, int break_state) 258 { 259 /* Unfortunately, I don't know how to send a break */ 260 dbg("%s", __FUNCTION__); 261 } 262 263 static void sierra_set_termios(struct usb_serial_port *port, 264 struct ktermios *old_termios) 265 { 266 dbg("%s", __FUNCTION__); 267 tty_termios_copy_hw(port->tty->termios, old_termios); 268 sierra_send_setup(port); 269 } 270 271 static int sierra_tiocmget(struct usb_serial_port *port, struct file *file) 272 { 273 unsigned int value; 274 struct sierra_port_private *portdata; 275 276 portdata = usb_get_serial_port_data(port); 277 278 value = ((portdata->rts_state) ? TIOCM_RTS : 0) | 279 ((portdata->dtr_state) ? TIOCM_DTR : 0) | 280 ((portdata->cts_state) ? TIOCM_CTS : 0) | 281 ((portdata->dsr_state) ? TIOCM_DSR : 0) | 282 ((portdata->dcd_state) ? TIOCM_CAR : 0) | 283 ((portdata->ri_state) ? TIOCM_RNG : 0); 284 285 return value; 286 } 287 288 static int sierra_tiocmset(struct usb_serial_port *port, struct file *file, 289 unsigned int set, unsigned int clear) 290 { 291 struct sierra_port_private *portdata; 292 293 portdata = usb_get_serial_port_data(port); 294 295 if (set & TIOCM_RTS) 296 portdata->rts_state = 1; 297 if (set & TIOCM_DTR) 298 portdata->dtr_state = 1; 299 300 if (clear & TIOCM_RTS) 301 portdata->rts_state = 0; 302 if (clear & TIOCM_DTR) 303 portdata->dtr_state = 0; 304 return sierra_send_setup(port); 305 } 306 307 static int sierra_ioctl(struct usb_serial_port *port, struct file *file, 308 unsigned int cmd, unsigned long arg) 309 { 310 return -ENOIOCTLCMD; 311 } 312 313 static void sierra_outdat_callback(struct urb *urb) 314 { 315 struct usb_serial_port *port = urb->context; 316 struct sierra_port_private *portdata = usb_get_serial_port_data(port); 317 int status = urb->status; 318 unsigned long flags; 319 320 dbg("%s - port %d", __FUNCTION__, port->number); 321 322 /* free up the transfer buffer, as usb_free_urb() does not do this */ 323 kfree(urb->transfer_buffer); 324 325 if (status) 326 dbg("%s - nonzero write bulk status received: %d", 327 __FUNCTION__, status); 328 329 spin_lock_irqsave(&portdata->lock, flags); 330 --portdata->outstanding_urbs; 331 spin_unlock_irqrestore(&portdata->lock, flags); 332 333 usb_serial_port_softint(port); 334 } 335 336 /* Write */ 337 static int sierra_write(struct usb_serial_port *port, 338 const unsigned char *buf, int count) 339 { 340 struct sierra_port_private *portdata = usb_get_serial_port_data(port); 341 struct usb_serial *serial = port->serial; 342 unsigned long flags; 343 unsigned char *buffer; 344 struct urb *urb; 345 int status; 346 347 portdata = usb_get_serial_port_data(port); 348 349 dbg("%s: write (%d chars)", __FUNCTION__, count); 350 351 spin_lock_irqsave(&portdata->lock, flags); 352 if (portdata->outstanding_urbs > N_OUT_URB) { 353 spin_unlock_irqrestore(&portdata->lock, flags); 354 dbg("%s - write limit hit\n", __FUNCTION__); 355 return 0; 356 } 357 portdata->outstanding_urbs++; 358 spin_unlock_irqrestore(&portdata->lock, flags); 359 360 buffer = kmalloc(count, GFP_ATOMIC); 361 if (!buffer) { 362 dev_err(&port->dev, "out of memory\n"); 363 count = -ENOMEM; 364 goto error_no_buffer; 365 } 366 367 urb = usb_alloc_urb(0, GFP_ATOMIC); 368 if (!urb) { 369 dev_err(&port->dev, "no more free urbs\n"); 370 count = -ENOMEM; 371 goto error_no_urb; 372 } 373 374 memcpy(buffer, buf, count); 375 376 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, buffer); 377 378 usb_fill_bulk_urb(urb, serial->dev, 379 usb_sndbulkpipe(serial->dev, 380 port->bulk_out_endpointAddress), 381 buffer, count, sierra_outdat_callback, port); 382 383 /* send it down the pipe */ 384 status = usb_submit_urb(urb, GFP_ATOMIC); 385 if (status) { 386 dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " 387 "with status = %d\n", __FUNCTION__, status); 388 count = status; 389 goto error; 390 } 391 392 /* we are done with this urb, so let the host driver 393 * really free it when it is finished with it */ 394 usb_free_urb(urb); 395 396 return count; 397 error: 398 usb_free_urb(urb); 399 error_no_urb: 400 kfree(buffer); 401 error_no_buffer: 402 spin_lock_irqsave(&portdata->lock, flags); 403 --portdata->outstanding_urbs; 404 spin_unlock_irqrestore(&portdata->lock, flags); 405 return count; 406 } 407 408 static void sierra_indat_callback(struct urb *urb) 409 { 410 int err; 411 int endpoint; 412 struct usb_serial_port *port; 413 struct tty_struct *tty; 414 unsigned char *data = urb->transfer_buffer; 415 int status = urb->status; 416 417 dbg("%s: %p", __FUNCTION__, urb); 418 419 endpoint = usb_pipeendpoint(urb->pipe); 420 port = (struct usb_serial_port *) urb->context; 421 422 if (status) { 423 dbg("%s: nonzero status: %d on endpoint %02x.", 424 __FUNCTION__, status, endpoint); 425 } else { 426 tty = port->tty; 427 if (urb->actual_length) { 428 tty_buffer_request_room(tty, urb->actual_length); 429 tty_insert_flip_string(tty, data, urb->actual_length); 430 tty_flip_buffer_push(tty); 431 } else { 432 dbg("%s: empty read urb received", __FUNCTION__); 433 } 434 435 /* Resubmit urb so we continue receiving */ 436 if (port->open_count && status != -ESHUTDOWN) { 437 err = usb_submit_urb(urb, GFP_ATOMIC); 438 if (err) 439 dev_err(&port->dev, "resubmit read urb failed." 440 "(%d)\n", err); 441 } 442 } 443 return; 444 } 445 446 static void sierra_instat_callback(struct urb *urb) 447 { 448 int err; 449 int status = urb->status; 450 struct usb_serial_port *port = (struct usb_serial_port *) urb->context; 451 struct sierra_port_private *portdata = usb_get_serial_port_data(port); 452 struct usb_serial *serial = port->serial; 453 454 dbg("%s", __FUNCTION__); 455 dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata); 456 457 if (status == 0) { 458 struct usb_ctrlrequest *req_pkt = 459 (struct usb_ctrlrequest *)urb->transfer_buffer; 460 461 if (!req_pkt) { 462 dbg("%s: NULL req_pkt\n", __FUNCTION__); 463 return; 464 } 465 if ((req_pkt->bRequestType == 0xA1) && 466 (req_pkt->bRequest == 0x20)) { 467 int old_dcd_state; 468 unsigned char signals = *((unsigned char *) 469 urb->transfer_buffer + 470 sizeof(struct usb_ctrlrequest)); 471 472 dbg("%s: signal x%x", __FUNCTION__, signals); 473 474 old_dcd_state = portdata->dcd_state; 475 portdata->cts_state = 1; 476 portdata->dcd_state = ((signals & 0x01) ? 1 : 0); 477 portdata->dsr_state = ((signals & 0x02) ? 1 : 0); 478 portdata->ri_state = ((signals & 0x08) ? 1 : 0); 479 480 if (port->tty && !C_CLOCAL(port->tty) && 481 old_dcd_state && !portdata->dcd_state) 482 tty_hangup(port->tty); 483 } else { 484 dbg("%s: type %x req %x", __FUNCTION__, 485 req_pkt->bRequestType,req_pkt->bRequest); 486 } 487 } else 488 dbg("%s: error %d", __FUNCTION__, status); 489 490 /* Resubmit urb so we continue receiving IRQ data */ 491 if (status != -ESHUTDOWN) { 492 urb->dev = serial->dev; 493 err = usb_submit_urb(urb, GFP_ATOMIC); 494 if (err) 495 dbg("%s: resubmit intr urb failed. (%d)", 496 __FUNCTION__, err); 497 } 498 } 499 500 static int sierra_write_room(struct usb_serial_port *port) 501 { 502 struct sierra_port_private *portdata = usb_get_serial_port_data(port); 503 unsigned long flags; 504 505 dbg("%s - port %d", __FUNCTION__, port->number); 506 507 /* try to give a good number back based on if we have any free urbs at 508 * this point in time */ 509 spin_lock_irqsave(&portdata->lock, flags); 510 if (portdata->outstanding_urbs > N_OUT_URB * 2 / 3) { 511 spin_unlock_irqrestore(&portdata->lock, flags); 512 dbg("%s - write limit hit\n", __FUNCTION__); 513 return 0; 514 } 515 spin_unlock_irqrestore(&portdata->lock, flags); 516 517 return 2048; 518 } 519 520 static int sierra_chars_in_buffer(struct usb_serial_port *port) 521 { 522 dbg("%s - port %d", __FUNCTION__, port->number); 523 524 /* 525 * We can't really account for how much data we 526 * have sent out, but hasn't made it through to the 527 * device as we can't see the backend here, so just 528 * tell the tty layer that everything is flushed. 529 */ 530 return 0; 531 } 532 533 static int sierra_open(struct usb_serial_port *port, struct file *filp) 534 { 535 struct sierra_port_private *portdata; 536 struct usb_serial *serial = port->serial; 537 int i; 538 struct urb *urb; 539 int result; 540 541 portdata = usb_get_serial_port_data(port); 542 543 dbg("%s", __FUNCTION__); 544 545 /* Set some sane defaults */ 546 portdata->rts_state = 1; 547 portdata->dtr_state = 1; 548 549 /* Reset low level data toggle and start reading from endpoints */ 550 for (i = 0; i < N_IN_URB; i++) { 551 urb = portdata->in_urbs[i]; 552 if (!urb) 553 continue; 554 if (urb->dev != serial->dev) { 555 dbg("%s: dev %p != %p", __FUNCTION__, 556 urb->dev, serial->dev); 557 continue; 558 } 559 560 /* 561 * make sure endpoint data toggle is synchronized with the 562 * device 563 */ 564 usb_clear_halt(urb->dev, urb->pipe); 565 566 result = usb_submit_urb(urb, GFP_KERNEL); 567 if (result) { 568 dev_err(&port->dev, "submit urb %d failed (%d) %d\n", 569 i, result, urb->transfer_buffer_length); 570 } 571 } 572 573 port->tty->low_latency = 1; 574 575 sierra_send_setup(port); 576 577 /* start up the interrupt endpoint if we have one */ 578 if (port->interrupt_in_urb) { 579 result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); 580 if (result) 581 dev_err(&port->dev, "submit irq_in urb failed %d\n", 582 result); 583 } 584 return 0; 585 } 586 587 static void sierra_close(struct usb_serial_port *port, struct file *filp) 588 { 589 int i; 590 struct usb_serial *serial = port->serial; 591 struct sierra_port_private *portdata; 592 593 dbg("%s", __FUNCTION__); 594 portdata = usb_get_serial_port_data(port); 595 596 portdata->rts_state = 0; 597 portdata->dtr_state = 0; 598 599 if (serial->dev) { 600 mutex_lock(&serial->disc_mutex); 601 if (!serial->disconnected) 602 sierra_send_setup(port); 603 mutex_unlock(&serial->disc_mutex); 604 605 /* Stop reading/writing urbs */ 606 for (i = 0; i < N_IN_URB; i++) 607 usb_kill_urb(portdata->in_urbs[i]); 608 } 609 610 usb_kill_urb(port->interrupt_in_urb); 611 612 port->tty = NULL; 613 } 614 615 static int sierra_startup(struct usb_serial *serial) 616 { 617 struct usb_serial_port *port; 618 struct sierra_port_private *portdata; 619 struct urb *urb; 620 int i; 621 int j; 622 623 dbg("%s", __FUNCTION__); 624 625 /* Set Device mode to D0 */ 626 sierra_set_power_state(serial->dev, 0x0000); 627 628 /* Check NMEA and set */ 629 if (nmea) 630 sierra_vsc_set_nmea(serial->dev, 1); 631 632 /* Now setup per port private data */ 633 for (i = 0; i < serial->num_ports; i++) { 634 port = serial->port[i]; 635 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); 636 if (!portdata) { 637 dbg("%s: kmalloc for sierra_port_private (%d) failed!.", 638 __FUNCTION__, i); 639 return -ENOMEM; 640 } 641 spin_lock_init(&portdata->lock); 642 643 usb_set_serial_port_data(port, portdata); 644 645 /* initialize the in urbs */ 646 for (j = 0; j < N_IN_URB; ++j) { 647 urb = usb_alloc_urb(0, GFP_KERNEL); 648 if (urb == NULL) { 649 dbg("%s: alloc for in port failed.", 650 __FUNCTION__); 651 continue; 652 } 653 /* Fill URB using supplied data. */ 654 usb_fill_bulk_urb(urb, serial->dev, 655 usb_rcvbulkpipe(serial->dev, 656 port->bulk_in_endpointAddress), 657 portdata->in_buffer[j], IN_BUFLEN, 658 sierra_indat_callback, port); 659 portdata->in_urbs[j] = urb; 660 } 661 } 662 663 return 0; 664 } 665 666 static void sierra_shutdown(struct usb_serial *serial) 667 { 668 int i, j; 669 struct usb_serial_port *port; 670 struct sierra_port_private *portdata; 671 672 dbg("%s", __FUNCTION__); 673 674 for (i = 0; i < serial->num_ports; ++i) { 675 port = serial->port[i]; 676 if (!port) 677 continue; 678 portdata = usb_get_serial_port_data(port); 679 if (!portdata) 680 continue; 681 682 for (j = 0; j < N_IN_URB; j++) { 683 usb_kill_urb(portdata->in_urbs[j]); 684 usb_free_urb(portdata->in_urbs[j]); 685 portdata->in_urbs[j] = NULL; 686 } 687 kfree(portdata); 688 usb_set_serial_port_data(port, NULL); 689 } 690 } 691 692 static struct usb_serial_driver sierra_device = { 693 .driver = { 694 .owner = THIS_MODULE, 695 .name = "sierra1", 696 }, 697 .description = "Sierra USB modem", 698 .id_table = id_table, 699 .usb_driver = &sierra_driver, 700 .num_interrupt_in = NUM_DONT_CARE, 701 .num_bulk_in = NUM_DONT_CARE, 702 .num_bulk_out = NUM_DONT_CARE, 703 .calc_num_ports = sierra_calc_num_ports, 704 .probe = sierra_probe, 705 .open = sierra_open, 706 .close = sierra_close, 707 .write = sierra_write, 708 .write_room = sierra_write_room, 709 .chars_in_buffer = sierra_chars_in_buffer, 710 .throttle = sierra_rx_throttle, 711 .unthrottle = sierra_rx_unthrottle, 712 .ioctl = sierra_ioctl, 713 .set_termios = sierra_set_termios, 714 .break_ctl = sierra_break_ctl, 715 .tiocmget = sierra_tiocmget, 716 .tiocmset = sierra_tiocmset, 717 .attach = sierra_startup, 718 .shutdown = sierra_shutdown, 719 .read_int_callback = sierra_instat_callback, 720 }; 721 722 /* Functions used by new usb-serial code. */ 723 static int __init sierra_init(void) 724 { 725 int retval; 726 retval = usb_serial_register(&sierra_device); 727 if (retval) 728 goto failed_device_register; 729 730 731 retval = usb_register(&sierra_driver); 732 if (retval) 733 goto failed_driver_register; 734 735 info(DRIVER_DESC ": " DRIVER_VERSION); 736 737 return 0; 738 739 failed_driver_register: 740 usb_serial_deregister(&sierra_device); 741 failed_device_register: 742 return retval; 743 } 744 745 static void __exit sierra_exit(void) 746 { 747 usb_deregister (&sierra_driver); 748 usb_serial_deregister(&sierra_device); 749 } 750 751 module_init(sierra_init); 752 module_exit(sierra_exit); 753 754 MODULE_AUTHOR(DRIVER_AUTHOR); 755 MODULE_DESCRIPTION(DRIVER_DESC); 756 MODULE_VERSION(DRIVER_VERSION); 757 MODULE_LICENSE("GPL"); 758 759 module_param(truinstall, bool, 0); 760 MODULE_PARM_DESC(truinstall, "TRU-Install support"); 761 762 module_param(nmea, bool, 0); 763 MODULE_PARM_DESC(nmea, "NMEA streaming"); 764 765 #ifdef CONFIG_USB_DEBUG 766 module_param(debug, bool, S_IRUGO | S_IWUSR); 767 MODULE_PARM_DESC(debug, "Debug messages"); 768 #endif 769 770