blob: 959b3e4e90774faf1a44815b6c6b19df0fedc336 [file] [log] [blame]
Kevin Lloyd69de51f2006-06-30 11:17:55 -07001/*
Kevin Lloyd033a3fb2006-10-13 23:53:21 -07002 USB Driver for Sierra Wireless
3
Kevin Lloyd112225b2007-07-16 13:49:27 -07004 Copyright (C) 2006, 2007 Kevin Lloyd <linux@sierrawireless.com>
Kevin Lloyd033a3fb2006-10-13 23:53:21 -07005
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>
Kevin Lloyd033a3fb2006-10-13 23:53:21 -070015*/
16
Kevin Lloyd9454c462007-07-16 13:49:29 -070017#define DRIVER_VERSION "v.1.2.5b"
Kevin Lloyd033a3fb2006-10-13 23:53:21 -070018#define DRIVER_AUTHOR "Kevin Lloyd <linux@sierrawireless.com>"
19#define DRIVER_DESC "USB Driver for Sierra Wireless USB modems"
Kevin Lloyd69de51f2006-06-30 11:17:55 -070020
21#include <linux/kernel.h>
Kevin Lloyd033a3fb2006-10-13 23:53:21 -070022#include <linux/jiffies.h>
23#include <linux/errno.h>
Kevin Lloyd69de51f2006-06-30 11:17:55 -070024#include <linux/tty.h>
Kevin Lloyd033a3fb2006-10-13 23:53:21 -070025#include <linux/tty_flip.h>
Kevin Lloyd69de51f2006-06-30 11:17:55 -070026#include <linux/module.h>
27#include <linux/usb.h>
Greg Kroah-Hartmana9698882006-07-11 21:22:58 -070028#include <linux/usb/serial.h>
Kevin Lloyd69de51f2006-06-30 11:17:55 -070029
Kevin Lloyd112225b2007-07-16 13:49:27 -070030#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
40static int debug;
41
42enum devicetype {
43 DEVICE_3_PORT = 0,
44 DEVICE_1_PORT = 1,
45 DEVICE_INSTALLER = 2,
46};
47
Adrian Bunk82a24e62007-07-29 16:59:02 +020048static int sierra_set_power_state(struct usb_device *udev, __u16 swiState)
Kevin Lloyd112225b2007-07-16 13:49:27 -070049{
50 int result;
Joe Perches898eb712007-10-18 03:06:30 -070051 dev_dbg(&udev->dev, "%s", "SET POWER STATE\n");
Kevin Lloyd112225b2007-07-16 13:49:27 -070052 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
Adrian Bunk82a24e62007-07-29 16:59:02 +020063static int sierra_set_ms_mode(struct usb_device *udev, __u16 eSocMode)
Kevin Lloyd112225b2007-07-16 13:49:27 -070064{
65 int result;
Joe Perches898eb712007-10-18 03:06:30 -070066 dev_dbg(&udev->dev, "%s", "DEVICE MODE SWITCH\n");
Kevin Lloyd112225b2007-07-16 13:49:27 -070067 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
Adrian Bunk82a24e62007-07-29 16:59:02 +020078static int sierra_probe(struct usb_interface *iface,
79 const struct usb_device_id *id)
Kevin Lloyd112225b2007-07-16 13:49:27 -070080{
81 int result;
82 struct usb_device *udev;
83
84 udev = usb_get_dev(interface_to_usbdev(iface));
85
86 /* Check if in installer mode */
87 if (id->driver_info == DEVICE_INSTALLER) {
88 dev_dbg(&udev->dev, "%s", "FOUND DEVICE(SW)\n");
89 result = sierra_set_ms_mode(udev, SWIMS_SET_MODE_Modem);
90 /*We do not want to bind to the device when in installer mode*/
91 return -EIO;
92 }
93
94 return usb_serial_probe(iface, id);
95}
Kevin Lloyd033a3fb2006-10-13 23:53:21 -070096
Kevin Lloyd69de51f2006-06-30 11:17:55 -070097static struct usb_device_id id_table [] = {
Kevin Lloyd69de51f2006-06-30 11:17:55 -070098 { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */
Kevin Lloyde43062d2007-01-17 16:04:18 -080099 { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */
Greg Kroah-Hartman90ac3c82002-04-09 12:14:34 -0700100 { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */
Kevin Lloyd9454c462007-07-16 13:49:29 -0700101 { USB_DEVICE(0x0f30, 0x1b1d) }, /* Sierra Wireless MC5720 */
Kevin Lloyde43062d2007-01-17 16:04:18 -0800102 { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */
103 { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */
104 { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */
Kevin Lloyd9454c462007-07-16 13:49:29 -0700105 { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */
106
Kevin Lloyd69de51f2006-06-30 11:17:55 -0700107 { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */
Kevin Lloyde43062d2007-01-17 16:04:18 -0800108 { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */
Kevin Lloyd69de51f2006-06-30 11:17:55 -0700109 { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */
Kevin Lloyd9454c462007-07-16 13:49:29 -0700110 { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */
Kevin Lloyd69de51f2006-06-30 11:17:55 -0700111 { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */
Kevin Lloyd9454c462007-07-16 13:49:29 -0700112 { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780*/
113 { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781*/
114 { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */
115 { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */
116 { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */
117 { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700118
Kevin Lloyd112225b2007-07-16 13:49:27 -0700119 { USB_DEVICE(0x1199, 0x0112), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 580 */
120 { USB_DEVICE(0x0F3D, 0x0112), .driver_info = DEVICE_1_PORT }, /* Airprime/Sierra PC 5220 */
121
122 { USB_DEVICE(0x1199, 0x0FFF), .driver_info = DEVICE_INSTALLER},
Kevin Lloyd69de51f2006-06-30 11:17:55 -0700123 { }
124};
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -0700125MODULE_DEVICE_TABLE(usb, id_table);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700126
127static struct usb_device_id id_table_1port [] = {
128 { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */
129 { USB_DEVICE(0x0F3D, 0x0112) }, /* AirPrime/Sierra PC 5220 */
130 { }
131};
132
133static struct usb_device_id id_table_3port [] = {
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700134 { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */
Kevin Lloyde43062d2007-01-17 16:04:18 -0800135 { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */
Kevin Lloyd9454c462007-07-16 13:49:29 -0700136 { USB_DEVICE(0x0f30, 0x1b1d) }, /* Sierra Wireless MC5720 */
Greg Kroah-Hartman90ac3c82002-04-09 12:14:34 -0700137 { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */
Kevin Lloyde43062d2007-01-17 16:04:18 -0800138 { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */
139 { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */
140 { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */
Kevin Lloyd9454c462007-07-16 13:49:29 -0700141 { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U*/
Kevin Lloyd112225b2007-07-16 13:49:27 -0700142
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700143 { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */
Kevin Lloyde43062d2007-01-17 16:04:18 -0800144 { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700145 { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */
Kevin Lloyd9454c462007-07-16 13:49:29 -0700146 { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700147 { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */
Kevin Lloyd9454c462007-07-16 13:49:29 -0700148 { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780*/
149 { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781*/
150 { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */
151 { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */
152 { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880E */
153 { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881E */
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700154 { }
155};
156
Kevin Lloyd69de51f2006-06-30 11:17:55 -0700157static struct usb_driver sierra_driver = {
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700158 .name = "sierra",
Kevin Lloyd112225b2007-07-16 13:49:27 -0700159 .probe = sierra_probe,
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700160 .disconnect = usb_serial_disconnect,
161 .id_table = id_table,
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -0700162 .no_dynamic_id = 1,
Kevin Lloyd69de51f2006-06-30 11:17:55 -0700163};
164
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700165
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700166struct sierra_port_private {
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900167 spinlock_t lock; /* lock the structure */
168 int outstanding_urbs; /* number of out urbs in flight */
169
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700170 /* Input endpoints and buffer for this port */
171 struct urb *in_urbs[N_IN_URB];
172 char in_buffer[N_IN_URB][IN_BUFLEN];
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700173
174 /* Settings for the port */
175 int rts_state; /* Handshaking pins (outputs) */
176 int dtr_state;
177 int cts_state; /* Handshaking pins (inputs) */
178 int dsr_state;
179 int dcd_state;
180 int ri_state;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700181};
182
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -0700183static int sierra_send_setup(struct usb_serial_port *port)
Kevin Lloyd69de51f2006-06-30 11:17:55 -0700184{
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -0700185 struct usb_serial *serial = port->serial;
186 struct sierra_port_private *portdata;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700187
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -0700188 dbg("%s", __FUNCTION__);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700189
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -0700190 portdata = usb_get_serial_port_data(port);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700191
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -0700192 if (port->tty) {
193 int val = 0;
194 if (portdata->dtr_state)
195 val |= 0x01;
196 if (portdata->rts_state)
197 val |= 0x02;
198
199 return usb_control_msg(serial->dev,
200 usb_rcvctrlpipe(serial->dev, 0),
201 0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT);
202 }
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700203
204 return 0;
Kevin Lloyd69de51f2006-06-30 11:17:55 -0700205}
206
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700207static void sierra_rx_throttle(struct usb_serial_port *port)
208{
209 dbg("%s", __FUNCTION__);
210}
211
212static void sierra_rx_unthrottle(struct usb_serial_port *port)
213{
214 dbg("%s", __FUNCTION__);
215}
216
217static void sierra_break_ctl(struct usb_serial_port *port, int break_state)
218{
219 /* Unfortunately, I don't know how to send a break */
220 dbg("%s", __FUNCTION__);
221}
222
223static void sierra_set_termios(struct usb_serial_port *port,
Alan Cox606d0992006-12-08 02:38:45 -0800224 struct ktermios *old_termios)
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700225{
226 dbg("%s", __FUNCTION__);
227
228 sierra_send_setup(port);
229}
230
231static int sierra_tiocmget(struct usb_serial_port *port, struct file *file)
232{
233 unsigned int value;
234 struct sierra_port_private *portdata;
235
236 portdata = usb_get_serial_port_data(port);
237
238 value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
239 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
240 ((portdata->cts_state) ? TIOCM_CTS : 0) |
241 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
242 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
243 ((portdata->ri_state) ? TIOCM_RNG : 0);
244
245 return value;
246}
247
248static int sierra_tiocmset(struct usb_serial_port *port, struct file *file,
249 unsigned int set, unsigned int clear)
250{
251 struct sierra_port_private *portdata;
252
253 portdata = usb_get_serial_port_data(port);
254
255 if (set & TIOCM_RTS)
256 portdata->rts_state = 1;
257 if (set & TIOCM_DTR)
258 portdata->dtr_state = 1;
259
260 if (clear & TIOCM_RTS)
261 portdata->rts_state = 0;
262 if (clear & TIOCM_DTR)
263 portdata->dtr_state = 0;
264 return sierra_send_setup(port);
265}
266
267static int sierra_ioctl(struct usb_serial_port *port, struct file *file,
268 unsigned int cmd, unsigned long arg)
269{
270 return -ENOIOCTLCMD;
271}
272
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900273static void sierra_outdat_callback(struct urb *urb)
274{
275 struct usb_serial_port *port = urb->context;
276 struct sierra_port_private *portdata = usb_get_serial_port_data(port);
277 int status = urb->status;
278 unsigned long flags;
279
280 dbg("%s - port %d", __FUNCTION__, port->number);
281
282 /* free up the transfer buffer, as usb_free_urb() does not do this */
283 kfree(urb->transfer_buffer);
284
285 if (status)
286 dbg("%s - nonzero write bulk status received: %d",
287 __FUNCTION__, status);
288
289 spin_lock_irqsave(&portdata->lock, flags);
290 --portdata->outstanding_urbs;
291 spin_unlock_irqrestore(&portdata->lock, flags);
292
293 usb_serial_port_softint(port);
294}
295
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700296/* Write */
297static int sierra_write(struct usb_serial_port *port,
298 const unsigned char *buf, int count)
299{
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900300 struct sierra_port_private *portdata = usb_get_serial_port_data(port);
301 struct usb_serial *serial = port->serial;
302 unsigned long flags;
303 unsigned char *buffer;
304 struct urb *urb;
305 int status;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700306
307 portdata = usb_get_serial_port_data(port);
308
309 dbg("%s: write (%d chars)", __FUNCTION__, count);
310
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900311 spin_lock_irqsave(&portdata->lock, flags);
312 if (portdata->outstanding_urbs > N_OUT_URB) {
313 spin_unlock_irqrestore(&portdata->lock, flags);
314 dbg("%s - write limit hit\n", __FUNCTION__);
315 return 0;
316 }
317 portdata->outstanding_urbs++;
318 spin_unlock_irqrestore(&portdata->lock, flags);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700319
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900320 buffer = kmalloc(count, GFP_ATOMIC);
321 if (!buffer) {
322 dev_err(&port->dev, "out of memory\n");
323 count = -ENOMEM;
324 goto error_no_buffer;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700325 }
326
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900327 urb = usb_alloc_urb(0, GFP_ATOMIC);
328 if (!urb) {
329 dev_err(&port->dev, "no more free urbs\n");
330 count = -ENOMEM;
331 goto error_no_urb;
332 }
333
334 memcpy(buffer, buf, count);
335
336 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, buffer);
337
338 usb_fill_bulk_urb(urb, serial->dev,
339 usb_sndbulkpipe(serial->dev,
340 port->bulk_out_endpointAddress),
341 buffer, count, sierra_outdat_callback, port);
342
343 /* send it down the pipe */
344 status = usb_submit_urb(urb, GFP_ATOMIC);
345 if (status) {
346 dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed "
347 "with status = %d\n", __FUNCTION__, status);
348 count = status;
349 goto error;
350 }
351
352 /* we are done with this urb, so let the host driver
353 * really free it when it is finished with it */
354 usb_free_urb(urb);
355
356 return count;
357error:
358 usb_free_urb(urb);
359error_no_urb:
360 kfree(buffer);
361error_no_buffer:
362 spin_lock_irqsave(&portdata->lock, flags);
363 --portdata->outstanding_urbs;
364 spin_unlock_irqrestore(&portdata->lock, flags);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700365 return count;
366}
367
368static void sierra_indat_callback(struct urb *urb)
369{
370 int err;
371 int endpoint;
372 struct usb_serial_port *port;
373 struct tty_struct *tty;
374 unsigned char *data = urb->transfer_buffer;
Greg Kroah-Hartman17dd2212007-06-15 15:44:13 -0700375 int status = urb->status;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700376
377 dbg("%s: %p", __FUNCTION__, urb);
378
379 endpoint = usb_pipeendpoint(urb->pipe);
380 port = (struct usb_serial_port *) urb->context;
381
Greg Kroah-Hartman17dd2212007-06-15 15:44:13 -0700382 if (status) {
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700383 dbg("%s: nonzero status: %d on endpoint %02x.",
Greg Kroah-Hartman17dd2212007-06-15 15:44:13 -0700384 __FUNCTION__, status, endpoint);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700385 } else {
386 tty = port->tty;
387 if (urb->actual_length) {
388 tty_buffer_request_room(tty, urb->actual_length);
389 tty_insert_flip_string(tty, data, urb->actual_length);
390 tty_flip_buffer_push(tty);
391 } else {
392 dbg("%s: empty read urb received", __FUNCTION__);
393 }
394
395 /* Resubmit urb so we continue receiving */
Greg Kroah-Hartman17dd2212007-06-15 15:44:13 -0700396 if (port->open_count && status != -ESHUTDOWN) {
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700397 err = usb_submit_urb(urb, GFP_ATOMIC);
398 if (err)
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900399 dev_err(&port->dev, "resubmit read urb failed."
Joe Perches898eb712007-10-18 03:06:30 -0700400 "(%d)\n", err);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700401 }
402 }
403 return;
404}
405
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700406static void sierra_instat_callback(struct urb *urb)
407{
408 int err;
Greg Kroah-Hartman17dd2212007-06-15 15:44:13 -0700409 int status = urb->status;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700410 struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
411 struct sierra_port_private *portdata = usb_get_serial_port_data(port);
412 struct usb_serial *serial = port->serial;
413
414 dbg("%s", __FUNCTION__);
415 dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata);
416
Greg Kroah-Hartman17dd2212007-06-15 15:44:13 -0700417 if (status == 0) {
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700418 struct usb_ctrlrequest *req_pkt =
419 (struct usb_ctrlrequest *)urb->transfer_buffer;
420
421 if (!req_pkt) {
422 dbg("%s: NULL req_pkt\n", __FUNCTION__);
423 return;
424 }
425 if ((req_pkt->bRequestType == 0xA1) &&
426 (req_pkt->bRequest == 0x20)) {
427 int old_dcd_state;
428 unsigned char signals = *((unsigned char *)
429 urb->transfer_buffer +
430 sizeof(struct usb_ctrlrequest));
431
432 dbg("%s: signal x%x", __FUNCTION__, signals);
433
434 old_dcd_state = portdata->dcd_state;
435 portdata->cts_state = 1;
436 portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
437 portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
438 portdata->ri_state = ((signals & 0x08) ? 1 : 0);
439
440 if (port->tty && !C_CLOCAL(port->tty) &&
441 old_dcd_state && !portdata->dcd_state)
442 tty_hangup(port->tty);
443 } else {
444 dbg("%s: type %x req %x", __FUNCTION__,
445 req_pkt->bRequestType,req_pkt->bRequest);
446 }
447 } else
Greg Kroah-Hartman17dd2212007-06-15 15:44:13 -0700448 dbg("%s: error %d", __FUNCTION__, status);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700449
450 /* Resubmit urb so we continue receiving IRQ data */
Greg Kroah-Hartman17dd2212007-06-15 15:44:13 -0700451 if (status != -ESHUTDOWN) {
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700452 urb->dev = serial->dev;
453 err = usb_submit_urb(urb, GFP_ATOMIC);
454 if (err)
455 dbg("%s: resubmit intr urb failed. (%d)",
456 __FUNCTION__, err);
457 }
458}
459
460static int sierra_write_room(struct usb_serial_port *port)
461{
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900462 struct sierra_port_private *portdata = usb_get_serial_port_data(port);
463 unsigned long flags;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700464
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900465 dbg("%s - port %d", __FUNCTION__, port->number);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700466
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900467 /* try to give a good number back based on if we have any free urbs at
468 * this point in time */
469 spin_lock_irqsave(&portdata->lock, flags);
470 if (portdata->outstanding_urbs > N_OUT_URB * 2 / 3) {
471 spin_unlock_irqrestore(&portdata->lock, flags);
472 dbg("%s - write limit hit\n", __FUNCTION__);
473 return 0;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700474 }
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900475 spin_unlock_irqrestore(&portdata->lock, flags);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700476
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900477 return 2048;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700478}
479
480static int sierra_chars_in_buffer(struct usb_serial_port *port)
481{
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900482 dbg("%s - port %d", __FUNCTION__, port->number);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700483
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900484 /*
485 * We can't really account for how much data we
486 * have sent out, but hasn't made it through to the
487 * device as we can't see the backend here, so just
488 * tell the tty layer that everything is flushed.
489 */
490 return 0;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700491}
492
493static int sierra_open(struct usb_serial_port *port, struct file *filp)
494{
495 struct sierra_port_private *portdata;
496 struct usb_serial *serial = port->serial;
Greg Kroah-Hartman9e85c5f2007-06-20 14:22:23 +0900497 int i;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700498 struct urb *urb;
Kevin Lloyde43062d2007-01-17 16:04:18 -0800499 int result;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700500
501 portdata = usb_get_serial_port_data(port);
502
503 dbg("%s", __FUNCTION__);
504
505 /* Set some sane defaults */
506 portdata->rts_state = 1;
507 portdata->dtr_state = 1;
508
509 /* Reset low level data toggle and start reading from endpoints */
510 for (i = 0; i < N_IN_URB; i++) {
511 urb = portdata->in_urbs[i];
Greg Kroah-Hartman9e85c5f2007-06-20 14:22:23 +0900512 if (!urb)
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700513 continue;
514 if (urb->dev != serial->dev) {
515 dbg("%s: dev %p != %p", __FUNCTION__,
516 urb->dev, serial->dev);
517 continue;
518 }
519
520 /*
521 * make sure endpoint data toggle is synchronized with the
522 * device
523 */
524 usb_clear_halt(urb->dev, urb->pipe);
525
Greg Kroah-Hartman9e85c5f2007-06-20 14:22:23 +0900526 result = usb_submit_urb(urb, GFP_KERNEL);
527 if (result) {
Joe Perches898eb712007-10-18 03:06:30 -0700528 dev_err(&port->dev, "submit urb %d failed (%d) %d\n",
Greg Kroah-Hartman9e85c5f2007-06-20 14:22:23 +0900529 i, result, urb->transfer_buffer_length);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700530 }
531 }
532
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700533 port->tty->low_latency = 1;
534
535 sierra_send_setup(port);
536
Greg Kroah-Hartman9e85c5f2007-06-20 14:22:23 +0900537 /* start up the interrupt endpoint if we have one */
538 if (port->interrupt_in_urb) {
539 result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
540 if (result)
Joe Perches898eb712007-10-18 03:06:30 -0700541 dev_err(&port->dev, "submit irq_in urb failed %d\n",
Greg Kroah-Hartman9e85c5f2007-06-20 14:22:23 +0900542 result);
543 }
544 return 0;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700545}
546
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700547static void sierra_close(struct usb_serial_port *port, struct file *filp)
548{
549 int i;
550 struct usb_serial *serial = port->serial;
551 struct sierra_port_private *portdata;
552
553 dbg("%s", __FUNCTION__);
554 portdata = usb_get_serial_port_data(port);
555
556 portdata->rts_state = 0;
557 portdata->dtr_state = 0;
558
559 if (serial->dev) {
560 sierra_send_setup(port);
561
562 /* Stop reading/writing urbs */
563 for (i = 0; i < N_IN_URB; i++)
Greg Kroah-Hartman9e85c5f2007-06-20 14:22:23 +0900564 usb_kill_urb(portdata->in_urbs[i]);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700565 }
Greg Kroah-Hartman9e85c5f2007-06-20 14:22:23 +0900566
567 usb_kill_urb(port->interrupt_in_urb);
568
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700569 port->tty = NULL;
570}
571
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700572static int sierra_startup(struct usb_serial *serial)
573{
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700574 struct usb_serial_port *port;
575 struct sierra_port_private *portdata;
Greg Kroah-Hartman9e85c5f2007-06-20 14:22:23 +0900576 struct urb *urb;
577 int i;
578 int j;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700579
580 dbg("%s", __FUNCTION__);
581
Kevin Lloyd112225b2007-07-16 13:49:27 -0700582 /*Set Device mode to D0 */
583 sierra_set_power_state(serial->dev, 0x0000);
584
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700585 /* Now setup per port private data */
586 for (i = 0; i < serial->num_ports; i++) {
587 port = serial->port[i];
588 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
589 if (!portdata) {
590 dbg("%s: kmalloc for sierra_port_private (%d) failed!.",
591 __FUNCTION__, i);
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900592 return -ENOMEM;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700593 }
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900594 spin_lock_init(&portdata->lock);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700595
596 usb_set_serial_port_data(port, portdata);
597
Greg Kroah-Hartman9e85c5f2007-06-20 14:22:23 +0900598 /* initialize the in urbs */
599 for (j = 0; j < N_IN_URB; ++j) {
600 urb = usb_alloc_urb(0, GFP_KERNEL);
601 if (urb == NULL) {
602 dbg("%s: alloc for in port failed.",
603 __FUNCTION__);
604 continue;
605 }
606 /* Fill URB using supplied data. */
607 usb_fill_bulk_urb(urb, serial->dev,
608 usb_rcvbulkpipe(serial->dev,
609 port->bulk_in_endpointAddress),
610 portdata->in_buffer[j], IN_BUFLEN,
611 sierra_indat_callback, port);
612 portdata->in_urbs[j] = urb;
613 }
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700614 }
615
Greg Kroah-Hartman17c23272007-06-20 14:22:23 +0900616 return 0;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700617}
618
619static void sierra_shutdown(struct usb_serial *serial)
620{
621 int i, j;
622 struct usb_serial_port *port;
623 struct sierra_port_private *portdata;
624
625 dbg("%s", __FUNCTION__);
626
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700627 for (i = 0; i < serial->num_ports; ++i) {
628 port = serial->port[i];
Greg Kroah-Hartmanf094e4f2007-04-26 00:12:01 -0700629 if (!port)
630 continue;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700631 portdata = usb_get_serial_port_data(port);
Greg Kroah-Hartmanf094e4f2007-04-26 00:12:01 -0700632 if (!portdata)
633 continue;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700634
635 for (j = 0; j < N_IN_URB; j++) {
Greg Kroah-Hartman9e85c5f2007-06-20 14:22:23 +0900636 usb_kill_urb(portdata->in_urbs[j]);
637 usb_free_urb(portdata->in_urbs[j]);
638 portdata->in_urbs[j] = NULL;
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700639 }
Greg Kroah-Hartman9e85c5f2007-06-20 14:22:23 +0900640 kfree(portdata);
641 usb_set_serial_port_data(port, NULL);
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700642 }
643}
644
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -0700645static struct usb_serial_driver sierra_1port_device = {
646 .driver = {
647 .owner = THIS_MODULE,
648 .name = "sierra1",
649 },
650 .description = "Sierra USB modem (1 port)",
651 .id_table = id_table_1port,
Johannes Hölzld9b1b782006-12-17 21:50:24 +0100652 .usb_driver = &sierra_driver,
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -0700653 .num_interrupt_in = NUM_DONT_CARE,
654 .num_bulk_in = 1,
655 .num_bulk_out = 1,
656 .num_ports = 1,
657 .open = sierra_open,
658 .close = sierra_close,
659 .write = sierra_write,
660 .write_room = sierra_write_room,
661 .chars_in_buffer = sierra_chars_in_buffer,
662 .throttle = sierra_rx_throttle,
663 .unthrottle = sierra_rx_unthrottle,
664 .ioctl = sierra_ioctl,
665 .set_termios = sierra_set_termios,
666 .break_ctl = sierra_break_ctl,
667 .tiocmget = sierra_tiocmget,
668 .tiocmset = sierra_tiocmset,
669 .attach = sierra_startup,
670 .shutdown = sierra_shutdown,
671 .read_int_callback = sierra_instat_callback,
672};
673
674static struct usb_serial_driver sierra_3port_device = {
675 .driver = {
676 .owner = THIS_MODULE,
677 .name = "sierra3",
678 },
679 .description = "Sierra USB modem (3 port)",
680 .id_table = id_table_3port,
Johannes Hölzld9b1b782006-12-17 21:50:24 +0100681 .usb_driver = &sierra_driver,
Greg Kroah-Hartman964ee1d2006-10-17 10:17:58 -0700682 .num_interrupt_in = NUM_DONT_CARE,
683 .num_bulk_in = 3,
684 .num_bulk_out = 3,
685 .num_ports = 3,
686 .open = sierra_open,
687 .close = sierra_close,
688 .write = sierra_write,
689 .write_room = sierra_write_room,
690 .chars_in_buffer = sierra_chars_in_buffer,
691 .throttle = sierra_rx_throttle,
692 .unthrottle = sierra_rx_unthrottle,
693 .ioctl = sierra_ioctl,
694 .set_termios = sierra_set_termios,
695 .break_ctl = sierra_break_ctl,
696 .tiocmget = sierra_tiocmget,
697 .tiocmset = sierra_tiocmset,
698 .attach = sierra_startup,
699 .shutdown = sierra_shutdown,
700 .read_int_callback = sierra_instat_callback,
701};
702
703/* Functions used by new usb-serial code. */
704static int __init sierra_init(void)
705{
706 int retval;
707 retval = usb_serial_register(&sierra_1port_device);
708 if (retval)
709 goto failed_1port_device_register;
710 retval = usb_serial_register(&sierra_3port_device);
711 if (retval)
712 goto failed_3port_device_register;
713
714
715 retval = usb_register(&sierra_driver);
716 if (retval)
717 goto failed_driver_register;
718
719 info(DRIVER_DESC ": " DRIVER_VERSION);
720
721 return 0;
722
723failed_driver_register:
724 usb_serial_deregister(&sierra_3port_device);
725failed_3port_device_register:
726 usb_serial_deregister(&sierra_1port_device);
727failed_1port_device_register:
728 return retval;
729}
730
731static void __exit sierra_exit(void)
732{
733 usb_deregister (&sierra_driver);
734 usb_serial_deregister(&sierra_1port_device);
735 usb_serial_deregister(&sierra_3port_device);
736}
737
738module_init(sierra_init);
739module_exit(sierra_exit);
740
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700741MODULE_AUTHOR(DRIVER_AUTHOR);
742MODULE_DESCRIPTION(DRIVER_DESC);
743MODULE_VERSION(DRIVER_VERSION);
Kevin Lloyd69de51f2006-06-30 11:17:55 -0700744MODULE_LICENSE("GPL");
Kevin Lloyd033a3fb2006-10-13 23:53:21 -0700745
746#ifdef CONFIG_USB_DEBUG
747module_param(debug, bool, S_IRUGO | S_IWUSR);
748MODULE_PARM_DESC(debug, "Debug messages");
749#endif
750