?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
iwlwifi: make IWLWIFI a tristate
[linux-2.6.git] / drivers / usb / serial / sierra.c
blob29074c1ba22b6dd504218328e11c177ae4a76ab6
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
41 static int debug;
42 static int nmea;
43 static int truinstall = 1;
44
45 enum devicetype {
46 DEVICE_3_PORT = 0,
47 DEVICE_1_PORT = 1,
48 DEVICE_INSTALLER = 2,
49 };
50
51 static 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
66 static 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
81 static 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
96 static 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
111 static int sierra_calc_interface(struct usb_serial *serial)
112 {
113 int interface;
114 struct usb_interface *p_interface;
115 struct usb_host_interface *p_host_interface;
116
117 /* Get the interface structure pointer from the serial struct */
118 p_interface = serial->interface;
119
120 /* Get a pointer to the host interface structure */
121 p_host_interface = p_interface->cur_altsetting;
122
123 /* read the interface descriptor for this active altsetting
124 * to find out the interface number we are on
125 */
126 interface = p_host_interface->desc.bInterfaceNumber;
127
128 return interface;
129 }
130
131 static int sierra_probe(struct usb_serial *serial,
132 const struct usb_device_id *id)
133 {
134 int result = 0;
135 struct usb_device *udev;
136 int *num_ports;
137 u8 ifnum;
138
139 num_ports = kmalloc(sizeof(*num_ports), GFP_KERNEL);
140 if (!num_ports)
141 return -ENOMEM;
142
143 ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
144 udev = serial->dev;
145
146 /* Figure out the interface number from the serial structure */
147 ifnum = sierra_calc_interface(serial);
148
149 /*
150 * If this interface supports more than 1 alternate
151 * select the 2nd one
152 */
153 if (serial->interface->num_altsetting == 2) {
154 dev_dbg(&udev->dev,
155 "Selecting alt setting for interface %d\n",
156 ifnum);
157
158 /* We know the alternate setting is 1 for the MC8785 */
159 usb_set_interface(udev, ifnum, 1);
160 }
161
162 /* Check if in installer mode */
163 if (truinstall && id->driver_info == DEVICE_INSTALLER) {
164 dev_dbg(&udev->dev, "%s", "FOUND TRU-INSTALL DEVICE(SW)\n");
165 result = sierra_set_ms_mode(udev, SWIMS_SET_MODE_Modem);
166 /* Don't bind to the device when in installer mode */
167 kfree(num_ports);
168 return -EIO;
169 } else if (id->driver_info == DEVICE_1_PORT)
170 *num_ports = 1;
171 else if (ifnum == 0x99)
172 *num_ports = 0;
173 else
174 *num_ports = 3;
175 /*
176 * save off our num_ports info so that we can use it in the
177 * calc_num_ports callback
178 */
179 usb_set_serial_data(serial, (void *)num_ports);
180
181 return result;
182 }
183
184 static struct usb_device_id id_table [] = {
185 { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */
186 { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */
187 { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */
188 { USB_DEVICE(0x0f30, 0x1b1d) }, /* Sierra Wireless MC5720 */
189 { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */
190 { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */
191 { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */
192 { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */
193 { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */
194 { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0023, 0xFF, 0xFF, 0xFF) }, /* Sierra Wireless C597 */
195
196 { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */
197 { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */
198 { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */
199 { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */
200 { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 (Thinkpad internal) */
201 { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */
202 { USB_DEVICE(0x03f0, 0x1e1d) }, /* HP hs2300 a.k.a MC8775 */
203 { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */
204 { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */
205 { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780*/
206 { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781*/
207 { USB_DEVICE(0x1199, 0x683B), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless MC8785 Composite*/
208 { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */
209 { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */
210 { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */
211 { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */
212 { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */
213 { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */
214 { USB_DEVICE(0x1199, 0x6859), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 885 E */
215 { USB_DEVICE(0x1199, 0x685A), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 885 E */
216
217 { USB_DEVICE(0x1199, 0x6468) }, /* Sierra Wireless MP3G - EVDO */
218 { USB_DEVICE(0x1199, 0x6469) }, /* Sierra Wireless MP3G - UMTS/HSPA */
219
220 { USB_DEVICE(0x1199, 0x0112), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 580 */
221 { USB_DEVICE(0x0F3D, 0x0112), .driver_info = DEVICE_1_PORT }, /* Airprime/Sierra PC 5220 */
222
223 { USB_DEVICE(0x1199, 0x0FFF), .driver_info = DEVICE_INSTALLER},
224 { }
225 };
226 MODULE_DEVICE_TABLE(usb, id_table);
227
228 static struct usb_driver sierra_driver = {
229 .name = "sierra",
230 .probe = usb_serial_probe,
231 .disconnect = usb_serial_disconnect,
232 .id_table = id_table,
233 .no_dynamic_id = 1,
234 };
235
236 struct sierra_port_private {
237 spinlock_t lock; /* lock the structure */
238 int outstanding_urbs; /* number of out urbs in flight */
239
240 /* Input endpoints and buffers for this port */
241 struct urb *in_urbs[N_IN_URB];
242 char *in_buffer[N_IN_URB];
243
244 /* Settings for the port */
245 int rts_state; /* Handshaking pins (outputs) */
246 int dtr_state;
247 int cts_state; /* Handshaking pins (inputs) */
248 int dsr_state;
249 int dcd_state;
250 int ri_state;
251 };
252
253 static int sierra_send_setup(struct usb_serial_port *port)
254 {
255 struct usb_serial *serial = port->serial;
256 struct sierra_port_private *portdata;
257 __u16 interface = 0;
258
259 dbg("%s", __func__);
260
261 portdata = usb_get_serial_port_data(port);
262
263 if (port->tty) {
264 int val = 0;
265 if (portdata->dtr_state)
266 val |= 0x01;
267 if (portdata->rts_state)
268 val |= 0x02;
269
270 /* Determine which port is targeted */
271 if (port->bulk_out_endpointAddress == 2)
272 interface = 0;
273 else if (port->bulk_out_endpointAddress == 4)
274 interface = 1;
275 else if (port->bulk_out_endpointAddress == 5)
276 interface = 2;
277
278 return usb_control_msg(serial->dev,
279 usb_rcvctrlpipe(serial->dev, 0),
280 0x22, 0x21, val, interface,
281 NULL, 0, USB_CTRL_SET_TIMEOUT);
282 }
283
284 return 0;
285 }
286
287 static void sierra_rx_throttle(struct usb_serial_port *port)
288 {
289 dbg("%s", __func__);
290 }
291
292 static void sierra_rx_unthrottle(struct usb_serial_port *port)
293 {
294 dbg("%s", __func__);
295 }
296
297 static void sierra_break_ctl(struct usb_serial_port *port, int break_state)
298 {
299 /* Unfortunately, I don't know how to send a break */
300 dbg("%s", __func__);
301 }
302
303 static void sierra_set_termios(struct usb_serial_port *port,
304 struct ktermios *old_termios)
305 {
306 dbg("%s", __func__);
307 tty_termios_copy_hw(port->tty->termios, old_termios);
308 sierra_send_setup(port);
309 }
310
311 static int sierra_tiocmget(struct usb_serial_port *port, struct file *file)
312 {
313 unsigned int value;
314 struct sierra_port_private *portdata;
315
316 portdata = usb_get_serial_port_data(port);
317
318 value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
319 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
320 ((portdata->cts_state) ? TIOCM_CTS : 0) |
321 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
322 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
323 ((portdata->ri_state) ? TIOCM_RNG : 0);
324
325 return value;
326 }
327
328 static int sierra_tiocmset(struct usb_serial_port *port, struct file *file,
329 unsigned int set, unsigned int clear)
330 {
331 struct sierra_port_private *portdata;
332
333 portdata = usb_get_serial_port_data(port);
334
335 if (set & TIOCM_RTS)
336 portdata->rts_state = 1;
337 if (set & TIOCM_DTR)
338 portdata->dtr_state = 1;
339
340 if (clear & TIOCM_RTS)
341 portdata->rts_state = 0;
342 if (clear & TIOCM_DTR)
343 portdata->dtr_state = 0;
344 return sierra_send_setup(port);
345 }
346
347 static int sierra_ioctl(struct usb_serial_port *port, struct file *file,
348 unsigned int cmd, unsigned long arg)
349 {
350 return -ENOIOCTLCMD;
351 }
352
353 static void sierra_outdat_callback(struct urb *urb)
354 {
355 struct usb_serial_port *port = urb->context;
356 struct sierra_port_private *portdata = usb_get_serial_port_data(port);
357 int status = urb->status;
358 unsigned long flags;
359
360 dbg("%s - port %d", __func__, port->number);
361
362 /* free up the transfer buffer, as usb_free_urb() does not do this */
363 kfree(urb->transfer_buffer);
364
365 if (status)
366 dbg("%s - nonzero write bulk status received: %d",
367 __func__, status);
368
369 spin_lock_irqsave(&portdata->lock, flags);
370 --portdata->outstanding_urbs;
371 spin_unlock_irqrestore(&portdata->lock, flags);
372
373 usb_serial_port_softint(port);
374 }
375
376 /* Write */
377 static int sierra_write(struct usb_serial_port *port,
378 const unsigned char *buf, int count)
379 {
380 struct sierra_port_private *portdata = usb_get_serial_port_data(port);
381 struct usb_serial *serial = port->serial;
382 unsigned long flags;
383 unsigned char *buffer;
384 struct urb *urb;
385 int status;
386
387 portdata = usb_get_serial_port_data(port);
388
389 dbg("%s: write (%d chars)", __func__, count);
390
391 spin_lock_irqsave(&portdata->lock, flags);
392 if (portdata->outstanding_urbs > N_OUT_URB) {
393 spin_unlock_irqrestore(&portdata->lock, flags);
394 dbg("%s - write limit hit\n", __func__);
395 return 0;
396 }
397 portdata->outstanding_urbs++;
398 spin_unlock_irqrestore(&portdata->lock, flags);
399
400 buffer = kmalloc(count, GFP_ATOMIC);
401 if (!buffer) {
402 dev_err(&port->dev, "out of memory\n");
403 count = -ENOMEM;
404 goto error_no_buffer;
405 }
406
407 urb = usb_alloc_urb(0, GFP_ATOMIC);
408 if (!urb) {
409 dev_err(&port->dev, "no more free urbs\n");
410 count = -ENOMEM;
411 goto error_no_urb;
412 }
413
414 memcpy(buffer, buf, count);
415
416 usb_serial_debug_data(debug, &port->dev, __func__, count, buffer);
417
418 usb_fill_bulk_urb(urb, serial->dev,
419 usb_sndbulkpipe(serial->dev,
420 port->bulk_out_endpointAddress),
421 buffer, count, sierra_outdat_callback, port);
422
423 /* send it down the pipe */
424 status = usb_submit_urb(urb, GFP_ATOMIC);
425 if (status) {
426 dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed "
427 "with status = %d\n", __func__, status);
428 count = status;
429 goto error;
430 }
431
432 /* we are done with this urb, so let the host driver
433 * really free it when it is finished with it */
434 usb_free_urb(urb);
435
436 return count;
437 error:
438 usb_free_urb(urb);
439 error_no_urb:
440 kfree(buffer);
441 error_no_buffer:
442 spin_lock_irqsave(&portdata->lock, flags);
443 --portdata->outstanding_urbs;
444 spin_unlock_irqrestore(&portdata->lock, flags);
445 return count;
446 }
447
448 static void sierra_indat_callback(struct urb *urb)
449 {
450 int err;
451 int endpoint;
452 struct usb_serial_port *port;
453 struct tty_struct *tty;
454 unsigned char *data = urb->transfer_buffer;
455 int status = urb->status;
456
457 dbg("%s: %p", __func__, urb);
458
459 endpoint = usb_pipeendpoint(urb->pipe);
460 port = urb->context;
461
462 if (status) {
463 dbg("%s: nonzero status: %d on endpoint %02x.",
464 __func__, status, endpoint);
465 } else {
466 tty = port->tty;
467 if (urb->actual_length) {
468 tty_buffer_request_room(tty, urb->actual_length);
469 tty_insert_flip_string(tty, data, urb->actual_length);
470 tty_flip_buffer_push(tty);
471 } else {
472 dbg("%s: empty read urb received", __func__);
473 }
474
475 /* Resubmit urb so we continue receiving */
476 if (port->open_count && status != -ESHUTDOWN) {
477 err = usb_submit_urb(urb, GFP_ATOMIC);
478 if (err)
479 dev_err(&port->dev, "resubmit read urb failed."
480 "(%d)\n", err);
481 }
482 }
483 return;
484 }
485
486 static void sierra_instat_callback(struct urb *urb)
487 {
488 int err;
489 int status = urb->status;
490 struct usb_serial_port *port = urb->context;
491 struct sierra_port_private *portdata = usb_get_serial_port_data(port);
492 struct usb_serial *serial = port->serial;
493
494 dbg("%s", __func__);
495 dbg("%s: urb %p port %p has data %p", __func__, urb, port, portdata);
496
497 if (status == 0) {
498 struct usb_ctrlrequest *req_pkt =
499 (struct usb_ctrlrequest *)urb->transfer_buffer;
500
501 if (!req_pkt) {
502 dbg("%s: NULL req_pkt\n", __func__);
503 return;
504 }
505 if ((req_pkt->bRequestType == 0xA1) &&
506 (req_pkt->bRequest == 0x20)) {
507 int old_dcd_state;
508 unsigned char signals = *((unsigned char *)
509 urb->transfer_buffer +
510 sizeof(struct usb_ctrlrequest));
511
512 dbg("%s: signal x%x", __func__, signals);
513
514 old_dcd_state = portdata->dcd_state;
515 portdata->cts_state = 1;
516 portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
517 portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
518 portdata->ri_state = ((signals & 0x08) ? 1 : 0);
519
520 if (port->tty && !C_CLOCAL(port->tty) &&
521 old_dcd_state && !portdata->dcd_state)
522 tty_hangup(port->tty);
523 } else {
524 dbg("%s: type %x req %x", __func__,
525 req_pkt->bRequestType, req_pkt->bRequest);
526 }
527 } else
528 dbg("%s: error %d", __func__, status);
529
530 /* Resubmit urb so we continue receiving IRQ data */
531 if (status != -ESHUTDOWN) {
532 urb->dev = serial->dev;
533 err = usb_submit_urb(urb, GFP_ATOMIC);
534 if (err)
535 dbg("%s: resubmit intr urb failed. (%d)",
536 __func__, err);
537 }
538 }
539
540 static int sierra_write_room(struct usb_serial_port *port)
541 {
542 struct sierra_port_private *portdata = usb_get_serial_port_data(port);
543 unsigned long flags;
544
545 dbg("%s - port %d", __func__, port->number);
546
547 /* try to give a good number back based on if we have any free urbs at
548 * this point in time */
549 spin_lock_irqsave(&portdata->lock, flags);
550 if (portdata->outstanding_urbs > N_OUT_URB * 2 / 3) {
551 spin_unlock_irqrestore(&portdata->lock, flags);
552 dbg("%s - write limit hit\n", __func__);
553 return 0;
554 }
555 spin_unlock_irqrestore(&portdata->lock, flags);
556
557 return 2048;
558 }
559
560 static int sierra_chars_in_buffer(struct usb_serial_port *port)
561 {
562 dbg("%s - port %d", __func__, port->number);
563
564 /*
565 * We can't really account for how much data we
566 * have sent out, but hasn't made it through to the
567 * device as we can't see the backend here, so just
568 * tell the tty layer that everything is flushed.
569 *
570 * FIXME: should walk the outstanding urbs info
571 */
572 return 0;
573 }
574
575 static int sierra_open(struct usb_serial_port *port, struct file *filp)
576 {
577 struct sierra_port_private *portdata;
578 struct usb_serial *serial = port->serial;
579 int i;
580 struct urb *urb;
581 int result;
582
583 portdata = usb_get_serial_port_data(port);
584
585 dbg("%s", __func__);
586
587 /* Set some sane defaults */
588 portdata->rts_state = 1;
589 portdata->dtr_state = 1;
590
591 /* Reset low level data toggle and start reading from endpoints */
592 for (i = 0; i < N_IN_URB; i++) {
593 urb = portdata->in_urbs[i];
594 if (!urb)
595 continue;
596 if (urb->dev != serial->dev) {
597 dbg("%s: dev %p != %p", __func__,
598 urb->dev, serial->dev);
599 continue;
600 }
601
602 /*
603 * make sure endpoint data toggle is synchronized with the
604 * device
605 */
606 usb_clear_halt(urb->dev, urb->pipe);
607
608 result = usb_submit_urb(urb, GFP_KERNEL);
609 if (result) {
610 dev_err(&port->dev, "submit urb %d failed (%d) %d\n",
611 i, result, urb->transfer_buffer_length);
612 }
613 }
614
615 port->tty->low_latency = 1;
616
617 sierra_send_setup(port);
618
619 /* start up the interrupt endpoint if we have one */
620 if (port->interrupt_in_urb) {
621 result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
622 if (result)
623 dev_err(&port->dev, "submit irq_in urb failed %d\n",
624 result);
625 }
626 return 0;
627 }
628
629 static void sierra_close(struct usb_serial_port *port, struct file *filp)
630 {
631 int i;
632 struct usb_serial *serial = port->serial;
633 struct sierra_port_private *portdata;
634
635 dbg("%s", __func__);
636 portdata = usb_get_serial_port_data(port);
637
638 portdata->rts_state = 0;
639 portdata->dtr_state = 0;
640
641 if (serial->dev) {
642 mutex_lock(&serial->disc_mutex);
643 if (!serial->disconnected)
644 sierra_send_setup(port);
645 mutex_unlock(&serial->disc_mutex);
646
647 /* Stop reading/writing urbs */
648 for (i = 0; i < N_IN_URB; i++)
649 usb_kill_urb(portdata->in_urbs[i]);
650 }
651
652 usb_kill_urb(port->interrupt_in_urb);
653
654 port->tty = NULL;
655 }
656
657 static int sierra_startup(struct usb_serial *serial)
658 {
659 struct usb_serial_port *port;
660 struct sierra_port_private *portdata;
661 struct urb *urb;
662 int i;
663 int j;
664
665 dbg("%s", __func__);
666
667 /* Set Device mode to D0 */
668 sierra_set_power_state(serial->dev, 0x0000);
669
670 /* Check NMEA and set */
671 if (nmea)
672 sierra_vsc_set_nmea(serial->dev, 1);
673
674 /* Now setup per port private data */
675 for (i = 0; i < serial->num_ports; i++) {
676 port = serial->port[i];
677 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
678 if (!portdata) {
679 dbg("%s: kmalloc for sierra_port_private (%d) failed!.",
680 __func__, i);
681 return -ENOMEM;
682 }
683 spin_lock_init(&portdata->lock);
684 for (j = 0; j < N_IN_URB; j++) {
685 portdata->in_buffer[j] = kmalloc(IN_BUFLEN, GFP_KERNEL);
686 if (!portdata->in_buffer[j]) {
687 for (--j; j >= 0; j--)
688 kfree(portdata->in_buffer[j]);
689 kfree(portdata);
690 return -ENOMEM;
691 }
692 }
693
694 usb_set_serial_port_data(port, portdata);
695
696 /* initialize the in urbs */
697 for (j = 0; j < N_IN_URB; ++j) {
698 urb = usb_alloc_urb(0, GFP_KERNEL);
699 if (urb == NULL) {
700 dbg("%s: alloc for in port failed.",
701 __func__);
702 continue;
703 }
704 /* Fill URB using supplied data. */
705 usb_fill_bulk_urb(urb, serial->dev,
706 usb_rcvbulkpipe(serial->dev,
707 port->bulk_in_endpointAddress),
708 portdata->in_buffer[j], IN_BUFLEN,
709 sierra_indat_callback, port);
710 portdata->in_urbs[j] = urb;
711 }
712 }
713
714 return 0;
715 }
716
717 static void sierra_shutdown(struct usb_serial *serial)
718 {
719 int i, j;
720 struct usb_serial_port *port;
721 struct sierra_port_private *portdata;
722
723 dbg("%s", __func__);
724
725 for (i = 0; i < serial->num_ports; ++i) {
726 port = serial->port[i];
727 if (!port)
728 continue;
729 portdata = usb_get_serial_port_data(port);
730 if (!portdata)
731 continue;
732
733 for (j = 0; j < N_IN_URB; j++) {
734 usb_kill_urb(portdata->in_urbs[j]);
735 usb_free_urb(portdata->in_urbs[j]);
736 kfree(portdata->in_buffer[j]);
737 }
738 kfree(portdata);
739 usb_set_serial_port_data(port, NULL);
740 }
741 }
742
743 static struct usb_serial_driver sierra_device = {
744 .driver = {
745 .owner = THIS_MODULE,
746 .name = "sierra1",
747 },
748 .description = "Sierra USB modem",
749 .id_table = id_table,
750 .usb_driver = &sierra_driver,
751 .calc_num_ports = sierra_calc_num_ports,
752 .probe = sierra_probe,
753 .open = sierra_open,
754 .close = sierra_close,
755 .write = sierra_write,
756 .write_room = sierra_write_room,
757 .chars_in_buffer = sierra_chars_in_buffer,
758 .throttle = sierra_rx_throttle,
759 .unthrottle = sierra_rx_unthrottle,
760 .ioctl = sierra_ioctl,
761 .set_termios = sierra_set_termios,
762 .break_ctl = sierra_break_ctl,
763 .tiocmget = sierra_tiocmget,
764 .tiocmset = sierra_tiocmset,
765 .attach = sierra_startup,
766 .shutdown = sierra_shutdown,
767 .read_int_callback = sierra_instat_callback,
768 };
769
770 /* Functions used by new usb-serial code. */
771 static int __init sierra_init(void)
772 {
773 int retval;
774 retval = usb_serial_register(&sierra_device);
775 if (retval)
776 goto failed_device_register;
777
778
779 retval = usb_register(&sierra_driver);
780 if (retval)
781 goto failed_driver_register;
782
783 info(DRIVER_DESC ": " DRIVER_VERSION);
784
785 return 0;
786
787 failed_driver_register:
788 usb_serial_deregister(&sierra_device);
789 failed_device_register:
790 return retval;
791 }
792
793 static void __exit sierra_exit(void)
794 {
795 usb_deregister (&sierra_driver);
796 usb_serial_deregister(&sierra_device);
797 }
798
799 module_init(sierra_init);
800 module_exit(sierra_exit);
801
802 MODULE_AUTHOR(DRIVER_AUTHOR);
803 MODULE_DESCRIPTION(DRIVER_DESC);
804 MODULE_VERSION(DRIVER_VERSION);
805 MODULE_LICENSE("GPL");
806
807 module_param(truinstall, bool, 0);
808 MODULE_PARM_DESC(truinstall, "TRU-Install support");
809
810 module_param(nmea, bool, 0);
811 MODULE_PARM_DESC(nmea, "NMEA streaming");
812
813 #ifdef CONFIG_USB_DEBUG
814 module_param(debug, bool, S_IRUGO | S_IWUSR);
815 MODULE_PARM_DESC(debug, "Debug messages");
816 #endif
817
Linus' kernel tree