Pull dock-bay into release branch
[linux-2.6] / drivers / usb / serial / sierra.c
1 /*
2   USB Driver for Sierra Wireless
3
4   Copyright (C) 2006, 2007  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.1.2.5b"
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
30 #define SWIMS_USB_REQUEST_SetMode       0x0B
31 #define SWIMS_USB_REQUEST_TYPE_SetMode  0x40
32 #define SWIMS_USB_INDEX_SetMode         0x0000
33 #define SWIMS_SET_MODE_Modem            0x0001
34
35 /* per port private data */
36 #define N_IN_URB        4
37 #define N_OUT_URB       4
38 #define IN_BUFLEN       4096
39
40 static int debug;
41
42 enum devicetype {
43         DEVICE_3_PORT =         0,
44         DEVICE_1_PORT =         1,
45         DEVICE_INSTALLER =      2,
46 };
47
48 int sierra_set_power_state(struct usb_device *udev, __u16 swiState)
49 {
50         int result;
51         dev_dbg(&udev->dev, "%s", "SET POWER STATE");
52         result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
53                         0x00,                   /* __u8 request      */
54                         0x40,                   /* __u8 request type */
55                         swiState,               /* __u16 value       */
56                         0,                      /* __u16 index       */
57                         NULL,                   /* void *data        */
58                         0,                      /* __u16 size        */
59                         USB_CTRL_SET_TIMEOUT);  /* int timeout       */
60         return result;
61 }
62
63 int sierra_set_ms_mode(struct usb_device *udev, __u16 eSocMode)
64 {
65         int result;
66         dev_dbg(&udev->dev, "%s", "DEVICE MODE SWITCH");
67         result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
68                         SWIMS_USB_REQUEST_SetMode,      /* __u8 request      */
69                         SWIMS_USB_REQUEST_TYPE_SetMode, /* __u8 request type */
70                         eSocMode,                       /* __u16 value       */
71                         SWIMS_USB_INDEX_SetMode,        /* __u16 index       */
72                         NULL,                           /* void *data        */
73                         0,                              /* __u16 size        */
74                         USB_CTRL_SET_TIMEOUT);          /* int timeout       */
75         return result;
76 }
77
78 int sierra_probe(struct usb_interface *iface, const struct usb_device_id *id)
79 {
80         int result;
81         struct usb_device *udev;
82
83         udev = usb_get_dev(interface_to_usbdev(iface));
84
85         /* Check if in installer mode */
86         if (id->driver_info == DEVICE_INSTALLER) {
87                 dev_dbg(&udev->dev, "%s", "FOUND DEVICE(SW)\n");
88                 result = sierra_set_ms_mode(udev, SWIMS_SET_MODE_Modem);
89                 /*We do not want to bind to the device when in installer mode*/
90                 return -EIO;
91         }
92
93         return usb_serial_probe(iface, id);
94 }
95
96 static struct usb_device_id id_table [] = {
97         { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */
98         { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */
99         { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */
100         { USB_DEVICE(0x0f30, 0x1b1d) }, /* Sierra Wireless MC5720 */
101         { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */
102         { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */
103         { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */
104         { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */
105
106         { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */
107         { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */
108         { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */
109         { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */
110         { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */
111         { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780*/
112         { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781*/
113         { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */
114         { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */
115         { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */
116         { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */
117
118         { USB_DEVICE(0x1199, 0x0112), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 580 */
119         { USB_DEVICE(0x0F3D, 0x0112), .driver_info = DEVICE_1_PORT }, /* Airprime/Sierra PC 5220 */
120
121         { USB_DEVICE(0x1199, 0x0FFF), .driver_info = DEVICE_INSTALLER},
122         { }
123 };
124 MODULE_DEVICE_TABLE(usb, id_table);
125
126 static struct usb_device_id id_table_1port [] = {
127         { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */
128         { USB_DEVICE(0x0F3D, 0x0112) }, /* AirPrime/Sierra PC 5220 */
129         { }
130 };
131
132 static struct usb_device_id id_table_3port [] = {
133         { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */
134         { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */
135         { USB_DEVICE(0x0f30, 0x1b1d) }, /* Sierra Wireless MC5720 */
136         { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */
137         { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */
138         { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */
139         { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */
140         { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U*/
141
142         { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */
143         { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */
144         { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */
145         { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */
146         { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */
147         { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780*/
148         { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781*/
149         { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */
150         { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */
151         { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880E */
152         { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881E */
153         { }
154 };
155
156 static struct usb_driver sierra_driver = {
157         .name       = "sierra",
158         .probe      = sierra_probe,
159         .disconnect = usb_serial_disconnect,
160         .id_table   = id_table,
161         .no_dynamic_id =        1,
162 };
163
164
165 struct sierra_port_private {
166         spinlock_t lock;        /* lock the structure */
167         int outstanding_urbs;   /* number of out urbs in flight */
168
169         /* Input endpoints and buffer for this port */
170         struct urb *in_urbs[N_IN_URB];
171         char in_buffer[N_IN_URB][IN_BUFLEN];
172
173         /* Settings for the port */
174         int rts_state;  /* Handshaking pins (outputs) */
175         int dtr_state;
176         int cts_state;  /* Handshaking pins (inputs) */
177         int dsr_state;
178         int dcd_state;
179         int ri_state;
180 };
181
182 static int sierra_send_setup(struct usb_serial_port *port)
183 {
184         struct usb_serial *serial = port->serial;
185         struct sierra_port_private *portdata;
186
187         dbg("%s", __FUNCTION__);
188
189         portdata = usb_get_serial_port_data(port);
190
191         if (port->tty) {
192                 int val = 0;
193                 if (portdata->dtr_state)
194                         val |= 0x01;
195                 if (portdata->rts_state)
196                         val |= 0x02;
197
198                 return usb_control_msg(serial->dev,
199                                 usb_rcvctrlpipe(serial->dev, 0),
200                                 0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT);
201         }
202
203         return 0;
204 }
205
206 static void sierra_rx_throttle(struct usb_serial_port *port)
207 {
208         dbg("%s", __FUNCTION__);
209 }
210
211 static void sierra_rx_unthrottle(struct usb_serial_port *port)
212 {
213         dbg("%s", __FUNCTION__);
214 }
215
216 static void sierra_break_ctl(struct usb_serial_port *port, int break_state)
217 {
218         /* Unfortunately, I don't know how to send a break */
219         dbg("%s", __FUNCTION__);
220 }
221
222 static void sierra_set_termios(struct usb_serial_port *port,
223                         struct ktermios *old_termios)
224 {
225         dbg("%s", __FUNCTION__);
226
227         sierra_send_setup(port);
228 }
229
230 static int sierra_tiocmget(struct usb_serial_port *port, struct file *file)
231 {
232         unsigned int value;
233         struct sierra_port_private *portdata;
234
235         portdata = usb_get_serial_port_data(port);
236
237         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
238                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
239                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
240                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
241                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
242                 ((portdata->ri_state) ? TIOCM_RNG : 0);
243
244         return value;
245 }
246
247 static int sierra_tiocmset(struct usb_serial_port *port, struct file *file,
248                         unsigned int set, unsigned int clear)
249 {
250         struct sierra_port_private *portdata;
251
252         portdata = usb_get_serial_port_data(port);
253
254         if (set & TIOCM_RTS)
255                 portdata->rts_state = 1;
256         if (set & TIOCM_DTR)
257                 portdata->dtr_state = 1;
258
259         if (clear & TIOCM_RTS)
260                 portdata->rts_state = 0;
261         if (clear & TIOCM_DTR)
262                 portdata->dtr_state = 0;
263         return sierra_send_setup(port);
264 }
265
266 static int sierra_ioctl(struct usb_serial_port *port, struct file *file,
267                         unsigned int cmd, unsigned long arg)
268 {
269         return -ENOIOCTLCMD;
270 }
271
272 static void sierra_outdat_callback(struct urb *urb)
273 {
274         struct usb_serial_port *port = urb->context;
275         struct sierra_port_private *portdata = usb_get_serial_port_data(port);
276         int status = urb->status;
277         unsigned long flags;
278
279         dbg("%s - port %d", __FUNCTION__, port->number);
280
281         /* free up the transfer buffer, as usb_free_urb() does not do this */
282         kfree(urb->transfer_buffer);
283
284         if (status)
285                 dbg("%s - nonzero write bulk status received: %d",
286                     __FUNCTION__, status);
287
288         spin_lock_irqsave(&portdata->lock, flags);
289         --portdata->outstanding_urbs;
290         spin_unlock_irqrestore(&portdata->lock, flags);
291
292         usb_serial_port_softint(port);
293 }
294
295 /* Write */
296 static int sierra_write(struct usb_serial_port *port,
297                         const unsigned char *buf, int count)
298 {
299         struct sierra_port_private *portdata = usb_get_serial_port_data(port);
300         struct usb_serial *serial = port->serial;
301         unsigned long flags;
302         unsigned char *buffer;
303         struct urb *urb;
304         int status;
305
306         portdata = usb_get_serial_port_data(port);
307
308         dbg("%s: write (%d chars)", __FUNCTION__, count);
309
310         spin_lock_irqsave(&portdata->lock, flags);
311         if (portdata->outstanding_urbs > N_OUT_URB) {
312                 spin_unlock_irqrestore(&portdata->lock, flags);
313                 dbg("%s - write limit hit\n", __FUNCTION__);
314                 return 0;
315         }
316         portdata->outstanding_urbs++;
317         spin_unlock_irqrestore(&portdata->lock, flags);
318
319         buffer = kmalloc(count, GFP_ATOMIC);
320         if (!buffer) {
321                 dev_err(&port->dev, "out of memory\n");
322                 count = -ENOMEM;
323                 goto error_no_buffer;
324         }
325
326         urb = usb_alloc_urb(0, GFP_ATOMIC);
327         if (!urb) {
328                 dev_err(&port->dev, "no more free urbs\n");
329                 count = -ENOMEM;
330                 goto error_no_urb;
331         }
332
333         memcpy(buffer, buf, count);
334
335         usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, buffer);
336
337         usb_fill_bulk_urb(urb, serial->dev,
338                           usb_sndbulkpipe(serial->dev,
339                                           port->bulk_out_endpointAddress),
340                           buffer, count, sierra_outdat_callback, port);
341
342         /* send it down the pipe */
343         status = usb_submit_urb(urb, GFP_ATOMIC);
344         if (status) {
345                 dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed "
346                         "with status = %d\n", __FUNCTION__, status);
347                 count = status;
348                 goto error;
349         }
350
351         /* we are done with this urb, so let the host driver
352          * really free it when it is finished with it */
353         usb_free_urb(urb);
354
355         return count;
356 error:
357         usb_free_urb(urb);
358 error_no_urb:
359         kfree(buffer);
360 error_no_buffer:
361         spin_lock_irqsave(&portdata->lock, flags);
362         --portdata->outstanding_urbs;
363         spin_unlock_irqrestore(&portdata->lock, flags);
364         return count;
365 }
366
367 static void sierra_indat_callback(struct urb *urb)
368 {
369         int err;
370         int endpoint;
371         struct usb_serial_port *port;
372         struct tty_struct *tty;
373         unsigned char *data = urb->transfer_buffer;
374         int status = urb->status;
375
376         dbg("%s: %p", __FUNCTION__, urb);
377
378         endpoint = usb_pipeendpoint(urb->pipe);
379         port = (struct usb_serial_port *) urb->context;
380
381         if (status) {
382                 dbg("%s: nonzero status: %d on endpoint %02x.",
383                     __FUNCTION__, status, endpoint);
384         } else {
385                 tty = port->tty;
386                 if (urb->actual_length) {
387                         tty_buffer_request_room(tty, urb->actual_length);
388                         tty_insert_flip_string(tty, data, urb->actual_length);
389                         tty_flip_buffer_push(tty);
390                 } else {
391                         dbg("%s: empty read urb received", __FUNCTION__);
392                 }
393
394                 /* Resubmit urb so we continue receiving */
395                 if (port->open_count && status != -ESHUTDOWN) {
396                         err = usb_submit_urb(urb, GFP_ATOMIC);
397                         if (err)
398                                 dev_err(&port->dev, "resubmit read urb failed."
399                                         "(%d)", err);
400                 }
401         }
402         return;
403 }
404
405 static void sierra_instat_callback(struct urb *urb)
406 {
407         int err;
408         int status = urb->status;
409         struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
410         struct sierra_port_private *portdata = usb_get_serial_port_data(port);
411         struct usb_serial *serial = port->serial;
412
413         dbg("%s", __FUNCTION__);
414         dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata);
415
416         if (status == 0) {
417                 struct usb_ctrlrequest *req_pkt =
418                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
419
420                 if (!req_pkt) {
421                         dbg("%s: NULL req_pkt\n", __FUNCTION__);
422                         return;
423                 }
424                 if ((req_pkt->bRequestType == 0xA1) &&
425                                 (req_pkt->bRequest == 0x20)) {
426                         int old_dcd_state;
427                         unsigned char signals = *((unsigned char *)
428                                         urb->transfer_buffer +
429                                         sizeof(struct usb_ctrlrequest));
430
431                         dbg("%s: signal x%x", __FUNCTION__, signals);
432
433                         old_dcd_state = portdata->dcd_state;
434                         portdata->cts_state = 1;
435                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
436                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
437                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
438
439                         if (port->tty && !C_CLOCAL(port->tty) &&
440                                         old_dcd_state && !portdata->dcd_state)
441                                 tty_hangup(port->tty);
442                 } else {
443                         dbg("%s: type %x req %x", __FUNCTION__,
444                                 req_pkt->bRequestType,req_pkt->bRequest);
445                 }
446         } else
447                 dbg("%s: error %d", __FUNCTION__, status);
448
449         /* Resubmit urb so we continue receiving IRQ data */
450         if (status != -ESHUTDOWN) {
451                 urb->dev = serial->dev;
452                 err = usb_submit_urb(urb, GFP_ATOMIC);
453                 if (err)
454                         dbg("%s: resubmit intr urb failed. (%d)",
455                                 __FUNCTION__, err);
456         }
457 }
458
459 static int sierra_write_room(struct usb_serial_port *port)
460 {
461         struct sierra_port_private *portdata = usb_get_serial_port_data(port);
462         unsigned long flags;
463
464         dbg("%s - port %d", __FUNCTION__, port->number);
465
466         /* try to give a good number back based on if we have any free urbs at
467          * this point in time */
468         spin_lock_irqsave(&portdata->lock, flags);
469         if (portdata->outstanding_urbs > N_OUT_URB * 2 / 3) {
470                 spin_unlock_irqrestore(&portdata->lock, flags);
471                 dbg("%s - write limit hit\n", __FUNCTION__);
472                 return 0;
473         }
474         spin_unlock_irqrestore(&portdata->lock, flags);
475
476         return 2048;
477 }
478
479 static int sierra_chars_in_buffer(struct usb_serial_port *port)
480 {
481         dbg("%s - port %d", __FUNCTION__, port->number);
482
483         /*
484          * We can't really account for how much data we
485          * have sent out, but hasn't made it through to the
486          * device as we can't see the backend here, so just
487          * tell the tty layer that everything is flushed.
488          */
489         return 0;
490 }
491
492 static int sierra_open(struct usb_serial_port *port, struct file *filp)
493 {
494         struct sierra_port_private *portdata;
495         struct usb_serial *serial = port->serial;
496         int i;
497         struct urb *urb;
498         int result;
499
500         portdata = usb_get_serial_port_data(port);
501
502         dbg("%s", __FUNCTION__);
503
504         /* Set some sane defaults */
505         portdata->rts_state = 1;
506         portdata->dtr_state = 1;
507
508         /* Reset low level data toggle and start reading from endpoints */
509         for (i = 0; i < N_IN_URB; i++) {
510                 urb = portdata->in_urbs[i];
511                 if (!urb)
512                         continue;
513                 if (urb->dev != serial->dev) {
514                         dbg("%s: dev %p != %p", __FUNCTION__,
515                                 urb->dev, serial->dev);
516                         continue;
517                 }
518
519                 /*
520                  * make sure endpoint data toggle is synchronized with the
521                  * device
522                  */
523                 usb_clear_halt(urb->dev, urb->pipe);
524
525                 result = usb_submit_urb(urb, GFP_KERNEL);
526                 if (result) {
527                         dev_err(&port->dev, "submit urb %d failed (%d) %d",
528                                 i, result, urb->transfer_buffer_length);
529                 }
530         }
531
532         port->tty->low_latency = 1;
533
534         sierra_send_setup(port);
535
536         /* start up the interrupt endpoint if we have one */
537         if (port->interrupt_in_urb) {
538                 result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
539                 if (result)
540                         dev_err(&port->dev, "submit irq_in urb failed %d",
541                                 result);
542         }
543         return 0;
544 }
545
546 static void sierra_close(struct usb_serial_port *port, struct file *filp)
547 {
548         int i;
549         struct usb_serial *serial = port->serial;
550         struct sierra_port_private *portdata;
551
552         dbg("%s", __FUNCTION__);
553         portdata = usb_get_serial_port_data(port);
554
555         portdata->rts_state = 0;
556         portdata->dtr_state = 0;
557
558         if (serial->dev) {
559                 sierra_send_setup(port);
560
561                 /* Stop reading/writing urbs */
562                 for (i = 0; i < N_IN_URB; i++)
563                         usb_kill_urb(portdata->in_urbs[i]);
564         }
565
566         usb_kill_urb(port->interrupt_in_urb);
567
568         port->tty = NULL;
569 }
570
571 static int sierra_startup(struct usb_serial *serial)
572 {
573         struct usb_serial_port *port;
574         struct sierra_port_private *portdata;
575         struct urb *urb;
576         int i;
577         int j;
578
579         dbg("%s", __FUNCTION__);
580
581         /*Set Device mode to D0 */
582         sierra_set_power_state(serial->dev, 0x0000);
583
584         /* Now setup per port private data */
585         for (i = 0; i < serial->num_ports; i++) {
586                 port = serial->port[i];
587                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
588                 if (!portdata) {
589                         dbg("%s: kmalloc for sierra_port_private (%d) failed!.",
590                                         __FUNCTION__, i);
591                         return -ENOMEM;
592                 }
593                 spin_lock_init(&portdata->lock);
594
595                 usb_set_serial_port_data(port, portdata);
596
597                 /* initialize the in urbs */
598                 for (j = 0; j < N_IN_URB; ++j) {
599                         urb = usb_alloc_urb(0, GFP_KERNEL);
600                         if (urb == NULL) {
601                                 dbg("%s: alloc for in port failed.",
602                                     __FUNCTION__);
603                                 continue;
604                         }
605                         /* Fill URB using supplied data. */
606                         usb_fill_bulk_urb(urb, serial->dev,
607                                           usb_rcvbulkpipe(serial->dev,
608                                                 port->bulk_in_endpointAddress),
609                                           portdata->in_buffer[j], IN_BUFLEN,
610                                           sierra_indat_callback, port);
611                         portdata->in_urbs[j] = urb;
612                 }
613         }
614
615         return 0;
616 }
617
618 static void sierra_shutdown(struct usb_serial *serial)
619 {
620         int i, j;
621         struct usb_serial_port *port;
622         struct sierra_port_private *portdata;
623
624         dbg("%s", __FUNCTION__);
625
626         for (i = 0; i < serial->num_ports; ++i) {
627                 port = serial->port[i];
628                 if (!port)
629                         continue;
630                 portdata = usb_get_serial_port_data(port);
631                 if (!portdata)
632                         continue;
633
634                 for (j = 0; j < N_IN_URB; j++) {
635                         usb_kill_urb(portdata->in_urbs[j]);
636                         usb_free_urb(portdata->in_urbs[j]);
637                         portdata->in_urbs[j] = NULL;
638                 }
639                 kfree(portdata);
640                 usb_set_serial_port_data(port, NULL);
641         }
642 }
643
644 static struct usb_serial_driver sierra_1port_device = {
645         .driver = {
646                 .owner =        THIS_MODULE,
647                 .name =         "sierra1",
648         },
649         .description       = "Sierra USB modem (1 port)",
650         .id_table          = id_table_1port,
651         .usb_driver        = &sierra_driver,
652         .num_interrupt_in  = NUM_DONT_CARE,
653         .num_bulk_in       = 1,
654         .num_bulk_out      = 1,
655         .num_ports         = 1,
656         .open              = sierra_open,
657         .close             = sierra_close,
658         .write             = sierra_write,
659         .write_room        = sierra_write_room,
660         .chars_in_buffer   = sierra_chars_in_buffer,
661         .throttle          = sierra_rx_throttle,
662         .unthrottle        = sierra_rx_unthrottle,
663         .ioctl             = sierra_ioctl,
664         .set_termios       = sierra_set_termios,
665         .break_ctl         = sierra_break_ctl,
666         .tiocmget          = sierra_tiocmget,
667         .tiocmset          = sierra_tiocmset,
668         .attach            = sierra_startup,
669         .shutdown          = sierra_shutdown,
670         .read_int_callback = sierra_instat_callback,
671 };
672
673 static struct usb_serial_driver sierra_3port_device = {
674         .driver = {
675                 .owner =        THIS_MODULE,
676                 .name =         "sierra3",
677         },
678         .description       = "Sierra USB modem (3 port)",
679         .id_table          = id_table_3port,
680         .usb_driver        = &sierra_driver,
681         .num_interrupt_in  = NUM_DONT_CARE,
682         .num_bulk_in       = 3,
683         .num_bulk_out      = 3,
684         .num_ports         = 3,
685         .open              = sierra_open,
686         .close             = sierra_close,
687         .write             = sierra_write,
688         .write_room        = sierra_write_room,
689         .chars_in_buffer   = sierra_chars_in_buffer,
690         .throttle          = sierra_rx_throttle,
691         .unthrottle        = sierra_rx_unthrottle,
692         .ioctl             = sierra_ioctl,
693         .set_termios       = sierra_set_termios,
694         .break_ctl         = sierra_break_ctl,
695         .tiocmget          = sierra_tiocmget,
696         .tiocmset          = sierra_tiocmset,
697         .attach            = sierra_startup,
698         .shutdown          = sierra_shutdown,
699         .read_int_callback = sierra_instat_callback,
700 };
701
702 /* Functions used by new usb-serial code. */
703 static int __init sierra_init(void)
704 {
705         int retval;
706         retval = usb_serial_register(&sierra_1port_device);
707         if (retval)
708                 goto failed_1port_device_register;
709         retval = usb_serial_register(&sierra_3port_device);
710         if (retval)
711                 goto failed_3port_device_register;
712
713
714         retval = usb_register(&sierra_driver);
715         if (retval)
716                 goto failed_driver_register;
717
718         info(DRIVER_DESC ": " DRIVER_VERSION);
719
720         return 0;
721
722 failed_driver_register:
723         usb_serial_deregister(&sierra_3port_device);
724 failed_3port_device_register:
725         usb_serial_deregister(&sierra_1port_device);
726 failed_1port_device_register:
727         return retval;
728 }
729
730 static void __exit sierra_exit(void)
731 {
732         usb_deregister (&sierra_driver);
733         usb_serial_deregister(&sierra_1port_device);
734         usb_serial_deregister(&sierra_3port_device);
735 }
736
737 module_init(sierra_init);
738 module_exit(sierra_exit);
739
740 MODULE_AUTHOR(DRIVER_AUTHOR);
741 MODULE_DESCRIPTION(DRIVER_DESC);
742 MODULE_VERSION(DRIVER_VERSION);
743 MODULE_LICENSE("GPL");
744
745 #ifdef CONFIG_USB_DEBUG
746 module_param(debug, bool, S_IRUGO | S_IWUSR);
747 MODULE_PARM_DESC(debug, "Debug messages");
748 #endif
749