sierra.c revision d726fb757722a3907356830a0b8d976267596d5c
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 42static int debug; 43static int nmea; 44static int truinstall = 1; 45 46enum devicetype { 47 DEVICE_3_PORT = 0, 48 DEVICE_1_PORT = 1, 49 DEVICE_INSTALLER = 2, 50}; 51 52static 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 67static 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 82static 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 97static 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 112static 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 149static 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 */ 181 182 { USB_DEVICE(0x1199, 0x0FFF), .driver_info = DEVICE_INSTALLER}, 183 { } 184}; 185MODULE_DEVICE_TABLE(usb, id_table); 186 187static struct usb_driver sierra_driver = { 188 .name = "sierra", 189 .probe = usb_serial_probe, 190 .disconnect = usb_serial_disconnect, 191 .id_table = id_table, 192 .no_dynamic_id = 1, 193}; 194 195struct sierra_port_private { 196 spinlock_t lock; /* lock the structure */ 197 int outstanding_urbs; /* number of out urbs in flight */ 198 199 /* Input endpoints and buffer for this port */ 200 struct urb *in_urbs[N_IN_URB]; 201 char in_buffer[N_IN_URB][IN_BUFLEN]; 202 203 /* Settings for the port */ 204 int rts_state; /* Handshaking pins (outputs) */ 205 int dtr_state; 206 int cts_state; /* Handshaking pins (inputs) */ 207 int dsr_state; 208 int dcd_state; 209 int ri_state; 210}; 211 212static int sierra_send_setup(struct usb_serial_port *port) 213{ 214 struct usb_serial *serial = port->serial; 215 struct sierra_port_private *portdata; 216 __u16 interface = 0; 217 218 dbg("%s", __FUNCTION__); 219 220 portdata = usb_get_serial_port_data(port); 221 222 if (port->tty) { 223 int val = 0; 224 if (portdata->dtr_state) 225 val |= 0x01; 226 if (portdata->rts_state) 227 val |= 0x02; 228 229 /* Determine which port is targeted */ 230 if (port->bulk_out_endpointAddress == 2) 231 interface = 0; 232 else if (port->bulk_out_endpointAddress == 4) 233 interface = 1; 234 else if (port->bulk_out_endpointAddress == 5) 235 interface = 2; 236 237 return usb_control_msg(serial->dev, 238 usb_rcvctrlpipe(serial->dev, 0), 239 0x22, 0x21, val, interface, 240 NULL, 0, USB_CTRL_SET_TIMEOUT); 241 } 242 243 return 0; 244} 245 246static void sierra_rx_throttle(struct usb_serial_port *port) 247{ 248 dbg("%s", __FUNCTION__); 249} 250 251static void sierra_rx_unthrottle(struct usb_serial_port *port) 252{ 253 dbg("%s", __FUNCTION__); 254} 255 256static void sierra_break_ctl(struct usb_serial_port *port, int break_state) 257{ 258 /* Unfortunately, I don't know how to send a break */ 259 dbg("%s", __FUNCTION__); 260} 261 262static void sierra_set_termios(struct usb_serial_port *port, 263 struct ktermios *old_termios) 264{ 265 dbg("%s", __FUNCTION__); 266 tty_termios_copy_hw(port->tty->termios, old_termios); 267 sierra_send_setup(port); 268} 269 270static int sierra_tiocmget(struct usb_serial_port *port, struct file *file) 271{ 272 unsigned int value; 273 struct sierra_port_private *portdata; 274 275 portdata = usb_get_serial_port_data(port); 276 277 value = ((portdata->rts_state) ? TIOCM_RTS : 0) | 278 ((portdata->dtr_state) ? TIOCM_DTR : 0) | 279 ((portdata->cts_state) ? TIOCM_CTS : 0) | 280 ((portdata->dsr_state) ? TIOCM_DSR : 0) | 281 ((portdata->dcd_state) ? TIOCM_CAR : 0) | 282 ((portdata->ri_state) ? TIOCM_RNG : 0); 283 284 return value; 285} 286 287static int sierra_tiocmset(struct usb_serial_port *port, struct file *file, 288 unsigned int set, unsigned int clear) 289{ 290 struct sierra_port_private *portdata; 291 292 portdata = usb_get_serial_port_data(port); 293 294 if (set & TIOCM_RTS) 295 portdata->rts_state = 1; 296 if (set & TIOCM_DTR) 297 portdata->dtr_state = 1; 298 299 if (clear & TIOCM_RTS) 300 portdata->rts_state = 0; 301 if (clear & TIOCM_DTR) 302 portdata->dtr_state = 0; 303 return sierra_send_setup(port); 304} 305 306static int sierra_ioctl(struct usb_serial_port *port, struct file *file, 307 unsigned int cmd, unsigned long arg) 308{ 309 return -ENOIOCTLCMD; 310} 311 312static void sierra_outdat_callback(struct urb *urb) 313{ 314 struct usb_serial_port *port = urb->context; 315 struct sierra_port_private *portdata = usb_get_serial_port_data(port); 316 int status = urb->status; 317 unsigned long flags; 318 319 dbg("%s - port %d", __FUNCTION__, port->number); 320 321 /* free up the transfer buffer, as usb_free_urb() does not do this */ 322 kfree(urb->transfer_buffer); 323 324 if (status) 325 dbg("%s - nonzero write bulk status received: %d", 326 __FUNCTION__, status); 327 328 spin_lock_irqsave(&portdata->lock, flags); 329 --portdata->outstanding_urbs; 330 spin_unlock_irqrestore(&portdata->lock, flags); 331 332 usb_serial_port_softint(port); 333} 334 335/* Write */ 336static int sierra_write(struct usb_serial_port *port, 337 const unsigned char *buf, int count) 338{ 339 struct sierra_port_private *portdata = usb_get_serial_port_data(port); 340 struct usb_serial *serial = port->serial; 341 unsigned long flags; 342 unsigned char *buffer; 343 struct urb *urb; 344 int status; 345 346 portdata = usb_get_serial_port_data(port); 347 348 dbg("%s: write (%d chars)", __FUNCTION__, count); 349 350 spin_lock_irqsave(&portdata->lock, flags); 351 if (portdata->outstanding_urbs > N_OUT_URB) { 352 spin_unlock_irqrestore(&portdata->lock, flags); 353 dbg("%s - write limit hit\n", __FUNCTION__); 354 return 0; 355 } 356 portdata->outstanding_urbs++; 357 spin_unlock_irqrestore(&portdata->lock, flags); 358 359 buffer = kmalloc(count, GFP_ATOMIC); 360 if (!buffer) { 361 dev_err(&port->dev, "out of memory\n"); 362 count = -ENOMEM; 363 goto error_no_buffer; 364 } 365 366 urb = usb_alloc_urb(0, GFP_ATOMIC); 367 if (!urb) { 368 dev_err(&port->dev, "no more free urbs\n"); 369 count = -ENOMEM; 370 goto error_no_urb; 371 } 372 373 memcpy(buffer, buf, count); 374 375 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, buffer); 376 377 usb_fill_bulk_urb(urb, serial->dev, 378 usb_sndbulkpipe(serial->dev, 379 port->bulk_out_endpointAddress), 380 buffer, count, sierra_outdat_callback, port); 381 382 /* send it down the pipe */ 383 status = usb_submit_urb(urb, GFP_ATOMIC); 384 if (status) { 385 dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " 386 "with status = %d\n", __FUNCTION__, status); 387 count = status; 388 goto error; 389 } 390 391 /* we are done with this urb, so let the host driver 392 * really free it when it is finished with it */ 393 usb_free_urb(urb); 394 395 return count; 396error: 397 usb_free_urb(urb); 398error_no_urb: 399 kfree(buffer); 400error_no_buffer: 401 spin_lock_irqsave(&portdata->lock, flags); 402 --portdata->outstanding_urbs; 403 spin_unlock_irqrestore(&portdata->lock, flags); 404 return count; 405} 406 407static void sierra_indat_callback(struct urb *urb) 408{ 409 int err; 410 int endpoint; 411 struct usb_serial_port *port; 412 struct tty_struct *tty; 413 unsigned char *data = urb->transfer_buffer; 414 int status = urb->status; 415 416 dbg("%s: %p", __FUNCTION__, urb); 417 418 endpoint = usb_pipeendpoint(urb->pipe); 419 port = (struct usb_serial_port *) urb->context; 420 421 if (status) { 422 dbg("%s: nonzero status: %d on endpoint %02x.", 423 __FUNCTION__, status, endpoint); 424 } else { 425 tty = port->tty; 426 if (urb->actual_length) { 427 tty_buffer_request_room(tty, urb->actual_length); 428 tty_insert_flip_string(tty, data, urb->actual_length); 429 tty_flip_buffer_push(tty); 430 } else { 431 dbg("%s: empty read urb received", __FUNCTION__); 432 } 433 434 /* Resubmit urb so we continue receiving */ 435 if (port->open_count && status != -ESHUTDOWN) { 436 err = usb_submit_urb(urb, GFP_ATOMIC); 437 if (err) 438 dev_err(&port->dev, "resubmit read urb failed." 439 "(%d)\n", err); 440 } 441 } 442 return; 443} 444 445static void sierra_instat_callback(struct urb *urb) 446{ 447 int err; 448 int status = urb->status; 449 struct usb_serial_port *port = (struct usb_serial_port *) urb->context; 450 struct sierra_port_private *portdata = usb_get_serial_port_data(port); 451 struct usb_serial *serial = port->serial; 452 453 dbg("%s", __FUNCTION__); 454 dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata); 455 456 if (status == 0) { 457 struct usb_ctrlrequest *req_pkt = 458 (struct usb_ctrlrequest *)urb->transfer_buffer; 459 460 if (!req_pkt) { 461 dbg("%s: NULL req_pkt\n", __FUNCTION__); 462 return; 463 } 464 if ((req_pkt->bRequestType == 0xA1) && 465 (req_pkt->bRequest == 0x20)) { 466 int old_dcd_state; 467 unsigned char signals = *((unsigned char *) 468 urb->transfer_buffer + 469 sizeof(struct usb_ctrlrequest)); 470 471 dbg("%s: signal x%x", __FUNCTION__, signals); 472 473 old_dcd_state = portdata->dcd_state; 474 portdata->cts_state = 1; 475 portdata->dcd_state = ((signals & 0x01) ? 1 : 0); 476 portdata->dsr_state = ((signals & 0x02) ? 1 : 0); 477 portdata->ri_state = ((signals & 0x08) ? 1 : 0); 478 479 if (port->tty && !C_CLOCAL(port->tty) && 480 old_dcd_state && !portdata->dcd_state) 481 tty_hangup(port->tty); 482 } else { 483 dbg("%s: type %x req %x", __FUNCTION__, 484 req_pkt->bRequestType,req_pkt->bRequest); 485 } 486 } else 487 dbg("%s: error %d", __FUNCTION__, status); 488 489 /* Resubmit urb so we continue receiving IRQ data */ 490 if (status != -ESHUTDOWN) { 491 urb->dev = serial->dev; 492 err = usb_submit_urb(urb, GFP_ATOMIC); 493 if (err) 494 dbg("%s: resubmit intr urb failed. (%d)", 495 __FUNCTION__, err); 496 } 497} 498 499static int sierra_write_room(struct usb_serial_port *port) 500{ 501 struct sierra_port_private *portdata = usb_get_serial_port_data(port); 502 unsigned long flags; 503 504 dbg("%s - port %d", __FUNCTION__, port->number); 505 506 /* try to give a good number back based on if we have any free urbs at 507 * this point in time */ 508 spin_lock_irqsave(&portdata->lock, flags); 509 if (portdata->outstanding_urbs > N_OUT_URB * 2 / 3) { 510 spin_unlock_irqrestore(&portdata->lock, flags); 511 dbg("%s - write limit hit\n", __FUNCTION__); 512 return 0; 513 } 514 spin_unlock_irqrestore(&portdata->lock, flags); 515 516 return 2048; 517} 518 519static int sierra_chars_in_buffer(struct usb_serial_port *port) 520{ 521 dbg("%s - port %d", __FUNCTION__, port->number); 522 523 /* 524 * We can't really account for how much data we 525 * have sent out, but hasn't made it through to the 526 * device as we can't see the backend here, so just 527 * tell the tty layer that everything is flushed. 528 */ 529 return 0; 530} 531 532static int sierra_open(struct usb_serial_port *port, struct file *filp) 533{ 534 struct sierra_port_private *portdata; 535 struct usb_serial *serial = port->serial; 536 int i; 537 struct urb *urb; 538 int result; 539 540 portdata = usb_get_serial_port_data(port); 541 542 dbg("%s", __FUNCTION__); 543 544 /* Set some sane defaults */ 545 portdata->rts_state = 1; 546 portdata->dtr_state = 1; 547 548 /* Reset low level data toggle and start reading from endpoints */ 549 for (i = 0; i < N_IN_URB; i++) { 550 urb = portdata->in_urbs[i]; 551 if (!urb) 552 continue; 553 if (urb->dev != serial->dev) { 554 dbg("%s: dev %p != %p", __FUNCTION__, 555 urb->dev, serial->dev); 556 continue; 557 } 558 559 /* 560 * make sure endpoint data toggle is synchronized with the 561 * device 562 */ 563 usb_clear_halt(urb->dev, urb->pipe); 564 565 result = usb_submit_urb(urb, GFP_KERNEL); 566 if (result) { 567 dev_err(&port->dev, "submit urb %d failed (%d) %d\n", 568 i, result, urb->transfer_buffer_length); 569 } 570 } 571 572 port->tty->low_latency = 1; 573 574 sierra_send_setup(port); 575 576 /* start up the interrupt endpoint if we have one */ 577 if (port->interrupt_in_urb) { 578 result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); 579 if (result) 580 dev_err(&port->dev, "submit irq_in urb failed %d\n", 581 result); 582 } 583 return 0; 584} 585 586static void sierra_close(struct usb_serial_port *port, struct file *filp) 587{ 588 int i; 589 struct usb_serial *serial = port->serial; 590 struct sierra_port_private *portdata; 591 592 dbg("%s", __FUNCTION__); 593 portdata = usb_get_serial_port_data(port); 594 595 portdata->rts_state = 0; 596 portdata->dtr_state = 0; 597 598 if (serial->dev) { 599 mutex_lock(&serial->disc_mutex); 600 if (!serial->disconnected) 601 sierra_send_setup(port); 602 mutex_unlock(&serial->disc_mutex); 603 604 /* Stop reading/writing urbs */ 605 for (i = 0; i < N_IN_URB; i++) 606 usb_kill_urb(portdata->in_urbs[i]); 607 } 608 609 usb_kill_urb(port->interrupt_in_urb); 610 611 port->tty = NULL; 612} 613 614static int sierra_startup(struct usb_serial *serial) 615{ 616 struct usb_serial_port *port; 617 struct sierra_port_private *portdata; 618 struct urb *urb; 619 int i; 620 int j; 621 622 dbg("%s", __FUNCTION__); 623 624 /* Set Device mode to D0 */ 625 sierra_set_power_state(serial->dev, 0x0000); 626 627 /* Check NMEA and set */ 628 if (nmea) 629 sierra_vsc_set_nmea(serial->dev, 1); 630 631 /* Now setup per port private data */ 632 for (i = 0; i < serial->num_ports; i++) { 633 port = serial->port[i]; 634 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); 635 if (!portdata) { 636 dbg("%s: kmalloc for sierra_port_private (%d) failed!.", 637 __FUNCTION__, i); 638 return -ENOMEM; 639 } 640 spin_lock_init(&portdata->lock); 641 642 usb_set_serial_port_data(port, portdata); 643 644 /* initialize the in urbs */ 645 for (j = 0; j < N_IN_URB; ++j) { 646 urb = usb_alloc_urb(0, GFP_KERNEL); 647 if (urb == NULL) { 648 dbg("%s: alloc for in port failed.", 649 __FUNCTION__); 650 continue; 651 } 652 /* Fill URB using supplied data. */ 653 usb_fill_bulk_urb(urb, serial->dev, 654 usb_rcvbulkpipe(serial->dev, 655 port->bulk_in_endpointAddress), 656 portdata->in_buffer[j], IN_BUFLEN, 657 sierra_indat_callback, port); 658 portdata->in_urbs[j] = urb; 659 } 660 } 661 662 return 0; 663} 664 665static void sierra_shutdown(struct usb_serial *serial) 666{ 667 int i, j; 668 struct usb_serial_port *port; 669 struct sierra_port_private *portdata; 670 671 dbg("%s", __FUNCTION__); 672 673 for (i = 0; i < serial->num_ports; ++i) { 674 port = serial->port[i]; 675 if (!port) 676 continue; 677 portdata = usb_get_serial_port_data(port); 678 if (!portdata) 679 continue; 680 681 for (j = 0; j < N_IN_URB; j++) { 682 usb_kill_urb(portdata->in_urbs[j]); 683 usb_free_urb(portdata->in_urbs[j]); 684 portdata->in_urbs[j] = NULL; 685 } 686 kfree(portdata); 687 usb_set_serial_port_data(port, NULL); 688 } 689} 690 691static struct usb_serial_driver sierra_device = { 692 .driver = { 693 .owner = THIS_MODULE, 694 .name = "sierra1", 695 }, 696 .description = "Sierra USB modem", 697 .id_table = id_table, 698 .usb_driver = &sierra_driver, 699 .num_interrupt_in = NUM_DONT_CARE, 700 .num_bulk_in = NUM_DONT_CARE, 701 .num_bulk_out = NUM_DONT_CARE, 702 .calc_num_ports = sierra_calc_num_ports, 703 .probe = sierra_probe, 704 .open = sierra_open, 705 .close = sierra_close, 706 .write = sierra_write, 707 .write_room = sierra_write_room, 708 .chars_in_buffer = sierra_chars_in_buffer, 709 .throttle = sierra_rx_throttle, 710 .unthrottle = sierra_rx_unthrottle, 711 .ioctl = sierra_ioctl, 712 .set_termios = sierra_set_termios, 713 .break_ctl = sierra_break_ctl, 714 .tiocmget = sierra_tiocmget, 715 .tiocmset = sierra_tiocmset, 716 .attach = sierra_startup, 717 .shutdown = sierra_shutdown, 718 .read_int_callback = sierra_instat_callback, 719}; 720 721/* Functions used by new usb-serial code. */ 722static int __init sierra_init(void) 723{ 724 int retval; 725 retval = usb_serial_register(&sierra_device); 726 if (retval) 727 goto failed_device_register; 728 729 730 retval = usb_register(&sierra_driver); 731 if (retval) 732 goto failed_driver_register; 733 734 info(DRIVER_DESC ": " DRIVER_VERSION); 735 736 return 0; 737 738failed_driver_register: 739 usb_serial_deregister(&sierra_device); 740failed_device_register: 741 return retval; 742} 743 744static void __exit sierra_exit(void) 745{ 746 usb_deregister (&sierra_driver); 747 usb_serial_deregister(&sierra_device); 748} 749 750module_init(sierra_init); 751module_exit(sierra_exit); 752 753MODULE_AUTHOR(DRIVER_AUTHOR); 754MODULE_DESCRIPTION(DRIVER_DESC); 755MODULE_VERSION(DRIVER_VERSION); 756MODULE_LICENSE("GPL"); 757 758module_param(truinstall, bool, 0); 759MODULE_PARM_DESC(truinstall, "TRU-Install support"); 760 761module_param(nmea, bool, 0); 762MODULE_PARM_DESC(nmea, "NMEA streaming"); 763 764#ifdef CONFIG_USB_DEBUG 765module_param(debug, bool, S_IRUGO | S_IWUSR); 766MODULE_PARM_DESC(debug, "Debug messages"); 767#endif 768 769