sierra.c revision 69a90f8189960f37cc73f5da6c331b23227e2197
1/* 2 USB Driver for Sierra Wireless 3 4 Copyright (C) 2006, 2007, 2008 Kevin Lloyd <klloyd@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.1.2.9c" 18#define DRIVER_AUTHOR "Kevin Lloyd <klloyd@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_SET_MODE_Modem 0x0001 35 36/* per port private data */ 37#define N_IN_URB 4 38#define N_OUT_URB 4 39#define IN_BUFLEN 4096 40 41static int debug; 42static int nmea; 43static int truinstall = 1; 44 45enum devicetype { 46 DEVICE_3_PORT = 0, 47 DEVICE_1_PORT = 1, 48 DEVICE_INSTALLER = 2, 49}; 50 51static int sierra_set_power_state(struct usb_device *udev, __u16 swiState) 52{ 53 int result; 54 dev_dbg(&udev->dev, "%s", "SET POWER STATE\n"); 55 result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 56 SWIMS_USB_REQUEST_SetPower, /* __u8 request */ 57 USB_TYPE_VENDOR, /* __u8 request type */ 58 swiState, /* __u16 value */ 59 0, /* __u16 index */ 60 NULL, /* void *data */ 61 0, /* __u16 size */ 62 USB_CTRL_SET_TIMEOUT); /* int timeout */ 63 return result; 64} 65 66static int sierra_set_ms_mode(struct usb_device *udev, __u16 eSWocMode) 67{ 68 int result; 69 dev_dbg(&udev->dev, "%s", "DEVICE MODE SWITCH\n"); 70 result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 71 SWIMS_USB_REQUEST_SetMode, /* __u8 request */ 72 USB_TYPE_VENDOR, /* __u8 request type */ 73 eSWocMode, /* __u16 value */ 74 0x0000, /* __u16 index */ 75 NULL, /* void *data */ 76 0, /* __u16 size */ 77 USB_CTRL_SET_TIMEOUT); /* int timeout */ 78 return result; 79} 80 81static int sierra_vsc_set_nmea(struct usb_device *udev, __u16 enable) 82{ 83 int result; 84 dev_dbg(&udev->dev, "%s", "NMEA Enable sent\n"); 85 result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 86 SWIMS_USB_REQUEST_SetNmea, /* __u8 request */ 87 USB_TYPE_VENDOR, /* __u8 request type */ 88 enable, /* __u16 value */ 89 0x0000, /* __u16 index */ 90 NULL, /* void *data */ 91 0, /* __u16 size */ 92 USB_CTRL_SET_TIMEOUT); /* int timeout */ 93 return result; 94} 95 96static int sierra_calc_num_ports(struct usb_serial *serial) 97{ 98 int result; 99 int *num_ports = usb_get_serial_data(serial); 100 101 result = *num_ports; 102 103 if (result) { 104 kfree(num_ports); 105 usb_set_serial_data(serial, NULL); 106 } 107 108 return result; 109} 110 111static int sierra_probe(struct usb_serial *serial, 112 const struct usb_device_id *id) 113{ 114 int result = 0; 115 struct usb_device *udev; 116 int *num_ports; 117 u8 ifnum; 118 119 num_ports = kmalloc(sizeof(*num_ports), GFP_KERNEL); 120 if (!num_ports) 121 return -ENOMEM; 122 123 ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber; 124 udev = serial->dev; 125 126 /* Check if in installer mode */ 127 if (truinstall && id->driver_info == DEVICE_INSTALLER) { 128 dev_dbg(&udev->dev, "%s", "FOUND TRU-INSTALL DEVICE(SW)\n"); 129 result = sierra_set_ms_mode(udev, SWIMS_SET_MODE_Modem); 130 /* Don't bind to the device when in installer mode */ 131 kfree(num_ports); 132 return -EIO; 133 } else if (id->driver_info == DEVICE_1_PORT) 134 *num_ports = 1; 135 else if (ifnum == 0x99) 136 *num_ports = 0; 137 else 138 *num_ports = 3; 139 /* 140 * save off our num_ports info so that we can use it in the 141 * calc_num_ports callback 142 */ 143 usb_set_serial_data(serial, (void *)num_ports); 144 145 return result; 146} 147 148static struct usb_device_id id_table [] = { 149 { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ 150 { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ 151 { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ 152 { USB_DEVICE(0x0f30, 0x1b1d) }, /* Sierra Wireless MC5720 */ 153 { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ 154 { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */ 155 { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ 156 { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ 157 { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */ 158 { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0023, 0xFF, 0xFF, 0xFF) }, /* Sierra Wireless C597 */ 159 160 { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ 161 { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ 162 { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ 163 { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ 164 { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 (Thinkpad internal) */ 165 { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */ 166 { USB_DEVICE(0x03f0, 0x1e1d) }, /* HP hs2300 a.k.a MC8775 */ 167 { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ 168 { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780*/ 169 { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781*/ 170 { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ 171 { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ 172 { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */ 173 { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */ 174 { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */ 175 { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ 176 177 { USB_DEVICE(0x1199, 0x6468) }, /* Sierra Wireless MP3G - EVDO */ 178 { USB_DEVICE(0x1199, 0x6469) }, /* Sierra Wireless MP3G - UMTS/HSPA */ 179 180 { USB_DEVICE(0x1199, 0x0112), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 580 */ 181 { USB_DEVICE(0x0F3D, 0x0112), .driver_info = DEVICE_1_PORT }, /* Airprime/Sierra PC 5220 */ 182 183 { USB_DEVICE(0x1199, 0x0FFF), .driver_info = DEVICE_INSTALLER}, 184 { } 185}; 186MODULE_DEVICE_TABLE(usb, id_table); 187 188static 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 196struct 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 buffers for this port */ 201 struct urb *in_urbs[N_IN_URB]; 202 char *in_buffer[N_IN_URB]; 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 213static 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 247static void sierra_rx_throttle(struct usb_serial_port *port) 248{ 249 dbg("%s", __FUNCTION__); 250} 251 252static void sierra_rx_unthrottle(struct usb_serial_port *port) 253{ 254 dbg("%s", __FUNCTION__); 255} 256 257static 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 263static 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 271static 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 288static 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 307static int sierra_ioctl(struct usb_serial_port *port, struct file *file, 308 unsigned int cmd, unsigned long arg) 309{ 310 return -ENOIOCTLCMD; 311} 312 313static 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 */ 337static 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; 397error: 398 usb_free_urb(urb); 399error_no_urb: 400 kfree(buffer); 401error_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 408static 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 446static 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 500static 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 520static 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 533static 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 587static 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 615static 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 for (j = 0; j < N_IN_URB; j++) { 643 portdata->in_buffer[j] = kmalloc(IN_BUFLEN, GFP_KERNEL); 644 if (!portdata->in_buffer[j]) { 645 for (--j; j >= 0; j--) 646 kfree(portdata->in_buffer[j]); 647 kfree(portdata); 648 return -ENOMEM; 649 } 650 } 651 652 usb_set_serial_port_data(port, portdata); 653 654 /* initialize the in urbs */ 655 for (j = 0; j < N_IN_URB; ++j) { 656 urb = usb_alloc_urb(0, GFP_KERNEL); 657 if (urb == NULL) { 658 dbg("%s: alloc for in port failed.", 659 __FUNCTION__); 660 continue; 661 } 662 /* Fill URB using supplied data. */ 663 usb_fill_bulk_urb(urb, serial->dev, 664 usb_rcvbulkpipe(serial->dev, 665 port->bulk_in_endpointAddress), 666 portdata->in_buffer[j], IN_BUFLEN, 667 sierra_indat_callback, port); 668 portdata->in_urbs[j] = urb; 669 } 670 } 671 672 return 0; 673} 674 675static void sierra_shutdown(struct usb_serial *serial) 676{ 677 int i, j; 678 struct usb_serial_port *port; 679 struct sierra_port_private *portdata; 680 681 dbg("%s", __FUNCTION__); 682 683 for (i = 0; i < serial->num_ports; ++i) { 684 port = serial->port[i]; 685 if (!port) 686 continue; 687 portdata = usb_get_serial_port_data(port); 688 if (!portdata) 689 continue; 690 691 for (j = 0; j < N_IN_URB; j++) { 692 usb_kill_urb(portdata->in_urbs[j]); 693 usb_free_urb(portdata->in_urbs[j]); 694 kfree(portdata->in_buffer[j]); 695 } 696 kfree(portdata); 697 usb_set_serial_port_data(port, NULL); 698 } 699} 700 701static struct usb_serial_driver sierra_device = { 702 .driver = { 703 .owner = THIS_MODULE, 704 .name = "sierra1", 705 }, 706 .description = "Sierra USB modem", 707 .id_table = id_table, 708 .usb_driver = &sierra_driver, 709 .num_interrupt_in = NUM_DONT_CARE, 710 .num_bulk_in = NUM_DONT_CARE, 711 .num_bulk_out = NUM_DONT_CARE, 712 .calc_num_ports = sierra_calc_num_ports, 713 .probe = sierra_probe, 714 .open = sierra_open, 715 .close = sierra_close, 716 .write = sierra_write, 717 .write_room = sierra_write_room, 718 .chars_in_buffer = sierra_chars_in_buffer, 719 .throttle = sierra_rx_throttle, 720 .unthrottle = sierra_rx_unthrottle, 721 .ioctl = sierra_ioctl, 722 .set_termios = sierra_set_termios, 723 .break_ctl = sierra_break_ctl, 724 .tiocmget = sierra_tiocmget, 725 .tiocmset = sierra_tiocmset, 726 .attach = sierra_startup, 727 .shutdown = sierra_shutdown, 728 .read_int_callback = sierra_instat_callback, 729}; 730 731/* Functions used by new usb-serial code. */ 732static int __init sierra_init(void) 733{ 734 int retval; 735 retval = usb_serial_register(&sierra_device); 736 if (retval) 737 goto failed_device_register; 738 739 740 retval = usb_register(&sierra_driver); 741 if (retval) 742 goto failed_driver_register; 743 744 info(DRIVER_DESC ": " DRIVER_VERSION); 745 746 return 0; 747 748failed_driver_register: 749 usb_serial_deregister(&sierra_device); 750failed_device_register: 751 return retval; 752} 753 754static void __exit sierra_exit(void) 755{ 756 usb_deregister (&sierra_driver); 757 usb_serial_deregister(&sierra_device); 758} 759 760module_init(sierra_init); 761module_exit(sierra_exit); 762 763MODULE_AUTHOR(DRIVER_AUTHOR); 764MODULE_DESCRIPTION(DRIVER_DESC); 765MODULE_VERSION(DRIVER_VERSION); 766MODULE_LICENSE("GPL"); 767 768module_param(truinstall, bool, 0); 769MODULE_PARM_DESC(truinstall, "TRU-Install support"); 770 771module_param(nmea, bool, 0); 772MODULE_PARM_DESC(nmea, "NMEA streaming"); 773 774#ifdef CONFIG_USB_DEBUG 775module_param(debug, bool, S_IRUGO | S_IWUSR); 776MODULE_PARM_DESC(debug, "Debug messages"); 777#endif 778 779