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Commit | Line | Data |
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69de51fd | 1 | /* |
033a3fb9 KL |
2 | USB Driver for Sierra Wireless |
3 | ||
112225b1 | 4 | Copyright (C) 2006, 2007 Kevin Lloyd <linux@sierrawireless.com> |
033a3fb9 KL |
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> | |
033a3fb9 KL |
15 | */ |
16 | ||
9454c46a | 17 | #define DRIVER_VERSION "v.1.2.5b" |
033a3fb9 KL |
18 | #define DRIVER_AUTHOR "Kevin Lloyd <linux@sierrawireless.com>" |
19 | #define DRIVER_DESC "USB Driver for Sierra Wireless USB modems" | |
69de51fd KL |
20 | |
21 | #include <linux/kernel.h> | |
033a3fb9 KL |
22 | #include <linux/jiffies.h> |
23 | #include <linux/errno.h> | |
69de51fd | 24 | #include <linux/tty.h> |
033a3fb9 | 25 | #include <linux/tty_flip.h> |
69de51fd KL |
26 | #include <linux/module.h> |
27 | #include <linux/usb.h> | |
a969888c | 28 | #include <linux/usb/serial.h> |
69de51fd | 29 | |
112225b1 KL |
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 | ||
82a24e68 | 48 | static int sierra_set_power_state(struct usb_device *udev, __u16 swiState) |
112225b1 KL |
49 | { |
50 | int result; | |
898eb71c | 51 | dev_dbg(&udev->dev, "%s", "SET POWER STATE\n"); |
112225b1 KL |
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 | ||
82a24e68 | 63 | static int sierra_set_ms_mode(struct usb_device *udev, __u16 eSocMode) |
112225b1 KL |
64 | { |
65 | int result; | |
898eb71c | 66 | dev_dbg(&udev->dev, "%s", "DEVICE MODE SWITCH\n"); |
112225b1 KL |
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 | ||
82a24e68 AB |
78 | static int sierra_probe(struct usb_interface *iface, |
79 | const struct usb_device_id *id) | |
112225b1 KL |
80 | { |
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 | } | |
033a3fb9 | 96 | |
69de51fd | 97 | static struct usb_device_id id_table [] = { |
e43062dd | 98 | { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ |
69de51fd | 99 | { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ |
e43062dd | 100 | { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ |
9454c46a | 101 | { USB_DEVICE(0x0f30, 0x1b1d) }, /* Sierra Wireless MC5720 */ |
69de51fd | 102 | { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ |
b9e13ac3 | 103 | { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */ |
69de51fd | 104 | { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ |
e43062dd | 105 | { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ |
9454c46a KL |
106 | { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */ |
107 | ||
69de51fd | 108 | { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ |
e43062dd | 109 | { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ |
69de51fd | 110 | { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ |
9454c46a | 111 | { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ |
ed0ccdbb | 112 | { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 (Thinkpad internal) */ |
69de51fd | 113 | { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ |
9454c46a KL |
114 | { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780*/ |
115 | { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781*/ | |
116 | { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ | |
117 | { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ | |
118 | { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */ | |
119 | { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */ | |
62aad3ab | 120 | { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ |
033a3fb9 | 121 | |
112225b1 KL |
122 | { USB_DEVICE(0x1199, 0x0112), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 580 */ |
123 | { USB_DEVICE(0x0F3D, 0x0112), .driver_info = DEVICE_1_PORT }, /* Airprime/Sierra PC 5220 */ | |
124 | ||
125 | { USB_DEVICE(0x1199, 0x0FFF), .driver_info = DEVICE_INSTALLER}, | |
033a3fb9 KL |
126 | { } |
127 | }; | |
964ee1de | 128 | MODULE_DEVICE_TABLE(usb, id_table); |
033a3fb9 KL |
129 | |
130 | static struct usb_device_id id_table_1port [] = { | |
131 | { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */ | |
132 | { USB_DEVICE(0x0F3D, 0x0112) }, /* AirPrime/Sierra PC 5220 */ | |
69de51fd KL |
133 | { } |
134 | }; | |
033a3fb9 KL |
135 | |
136 | static struct usb_device_id id_table_3port [] = { | |
e43062dd | 137 | { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ |
033a3fb9 | 138 | { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ |
9454c46a | 139 | { USB_DEVICE(0x0f30, 0x1b1d) }, /* Sierra Wireless MC5720 */ |
e43062dd | 140 | { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ |
033a3fb9 | 141 | { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ |
5fdcd039 | 142 | { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */ |
033a3fb9 | 143 | { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ |
e43062dd | 144 | { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ |
9454c46a | 145 | { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U*/ |
112225b1 | 146 | |
033a3fb9 | 147 | { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ |
e43062dd | 148 | { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ |
033a3fb9 | 149 | { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ |
9454c46a | 150 | { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ |
ed0ccdbb | 151 | { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 (Thinkpad internal) */ |
033a3fb9 | 152 | { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ |
9454c46a KL |
153 | { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780*/ |
154 | { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781*/ | |
155 | { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ | |
156 | { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ | |
157 | { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880E */ | |
158 | { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881E */ | |
62aad3ab | 159 | { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881U */ |
033a3fb9 KL |
160 | { } |
161 | }; | |
162 | ||
69de51fd | 163 | static struct usb_driver sierra_driver = { |
033a3fb9 | 164 | .name = "sierra", |
112225b1 | 165 | .probe = sierra_probe, |
033a3fb9 KL |
166 | .disconnect = usb_serial_disconnect, |
167 | .id_table = id_table, | |
964ee1de | 168 | .no_dynamic_id = 1, |
033a3fb9 KL |
169 | }; |
170 | ||
171 | ||
033a3fb9 | 172 | struct sierra_port_private { |
17c23274 GKH |
173 | spinlock_t lock; /* lock the structure */ |
174 | int outstanding_urbs; /* number of out urbs in flight */ | |
175 | ||
033a3fb9 KL |
176 | /* Input endpoints and buffer for this port */ |
177 | struct urb *in_urbs[N_IN_URB]; | |
178 | char in_buffer[N_IN_URB][IN_BUFLEN]; | |
033a3fb9 KL |
179 | |
180 | /* Settings for the port */ | |
181 | int rts_state; /* Handshaking pins (outputs) */ | |
182 | int dtr_state; | |
183 | int cts_state; /* Handshaking pins (inputs) */ | |
184 | int dsr_state; | |
185 | int dcd_state; | |
186 | int ri_state; | |
033a3fb9 KL |
187 | }; |
188 | ||
964ee1de | 189 | static int sierra_send_setup(struct usb_serial_port *port) |
69de51fd | 190 | { |
964ee1de GKH |
191 | struct usb_serial *serial = port->serial; |
192 | struct sierra_port_private *portdata; | |
033a3fb9 | 193 | |
964ee1de | 194 | dbg("%s", __FUNCTION__); |
033a3fb9 | 195 | |
964ee1de | 196 | portdata = usb_get_serial_port_data(port); |
033a3fb9 | 197 | |
964ee1de GKH |
198 | if (port->tty) { |
199 | int val = 0; | |
200 | if (portdata->dtr_state) | |
201 | val |= 0x01; | |
202 | if (portdata->rts_state) | |
203 | val |= 0x02; | |
033a3fb9 | 204 | |
964ee1de GKH |
205 | return usb_control_msg(serial->dev, |
206 | usb_rcvctrlpipe(serial->dev, 0), | |
207 | 0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT); | |
208 | } | |
69de51fd | 209 | |
964ee1de | 210 | return 0; |
69de51fd KL |
211 | } |
212 | ||
033a3fb9 KL |
213 | static void sierra_rx_throttle(struct usb_serial_port *port) |
214 | { | |
215 | dbg("%s", __FUNCTION__); | |
216 | } | |
217 | ||
218 | static void sierra_rx_unthrottle(struct usb_serial_port *port) | |
219 | { | |
220 | dbg("%s", __FUNCTION__); | |
221 | } | |
222 | ||
223 | static void sierra_break_ctl(struct usb_serial_port *port, int break_state) | |
224 | { | |
225 | /* Unfortunately, I don't know how to send a break */ | |
226 | dbg("%s", __FUNCTION__); | |
227 | } | |
228 | ||
229 | static void sierra_set_termios(struct usb_serial_port *port, | |
606d099c | 230 | struct ktermios *old_termios) |
033a3fb9 KL |
231 | { |
232 | dbg("%s", __FUNCTION__); | |
ed1f12ec | 233 | tty_termios_copy_hw(port->tty->termios, old_termios); |
033a3fb9 KL |
234 | sierra_send_setup(port); |
235 | } | |
236 | ||
237 | static int sierra_tiocmget(struct usb_serial_port *port, struct file *file) | |
238 | { | |
239 | unsigned int value; | |
240 | struct sierra_port_private *portdata; | |
241 | ||
242 | portdata = usb_get_serial_port_data(port); | |
243 | ||
244 | value = ((portdata->rts_state) ? TIOCM_RTS : 0) | | |
245 | ((portdata->dtr_state) ? TIOCM_DTR : 0) | | |
246 | ((portdata->cts_state) ? TIOCM_CTS : 0) | | |
247 | ((portdata->dsr_state) ? TIOCM_DSR : 0) | | |
248 | ((portdata->dcd_state) ? TIOCM_CAR : 0) | | |
249 | ((portdata->ri_state) ? TIOCM_RNG : 0); | |
250 | ||
251 | return value; | |
252 | } | |
253 | ||
254 | static int sierra_tiocmset(struct usb_serial_port *port, struct file *file, | |
255 | unsigned int set, unsigned int clear) | |
256 | { | |
257 | struct sierra_port_private *portdata; | |
258 | ||
259 | portdata = usb_get_serial_port_data(port); | |
260 | ||
261 | if (set & TIOCM_RTS) | |
262 | portdata->rts_state = 1; | |
263 | if (set & TIOCM_DTR) | |
264 | portdata->dtr_state = 1; | |
265 | ||
266 | if (clear & TIOCM_RTS) | |
267 | portdata->rts_state = 0; | |
268 | if (clear & TIOCM_DTR) | |
269 | portdata->dtr_state = 0; | |
270 | return sierra_send_setup(port); | |
271 | } | |
272 | ||
273 | static int sierra_ioctl(struct usb_serial_port *port, struct file *file, | |
274 | unsigned int cmd, unsigned long arg) | |
275 | { | |
276 | return -ENOIOCTLCMD; | |
277 | } | |
278 | ||
17c23274 GKH |
279 | static void sierra_outdat_callback(struct urb *urb) |
280 | { | |
281 | struct usb_serial_port *port = urb->context; | |
282 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
283 | int status = urb->status; | |
284 | unsigned long flags; | |
285 | ||
286 | dbg("%s - port %d", __FUNCTION__, port->number); | |
287 | ||
288 | /* free up the transfer buffer, as usb_free_urb() does not do this */ | |
289 | kfree(urb->transfer_buffer); | |
290 | ||
291 | if (status) | |
292 | dbg("%s - nonzero write bulk status received: %d", | |
293 | __FUNCTION__, status); | |
294 | ||
295 | spin_lock_irqsave(&portdata->lock, flags); | |
296 | --portdata->outstanding_urbs; | |
297 | spin_unlock_irqrestore(&portdata->lock, flags); | |
298 | ||
299 | usb_serial_port_softint(port); | |
300 | } | |
301 | ||
033a3fb9 KL |
302 | /* Write */ |
303 | static int sierra_write(struct usb_serial_port *port, | |
304 | const unsigned char *buf, int count) | |
305 | { | |
17c23274 GKH |
306 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
307 | struct usb_serial *serial = port->serial; | |
308 | unsigned long flags; | |
309 | unsigned char *buffer; | |
310 | struct urb *urb; | |
311 | int status; | |
033a3fb9 KL |
312 | |
313 | portdata = usb_get_serial_port_data(port); | |
314 | ||
315 | dbg("%s: write (%d chars)", __FUNCTION__, count); | |
316 | ||
17c23274 GKH |
317 | spin_lock_irqsave(&portdata->lock, flags); |
318 | if (portdata->outstanding_urbs > N_OUT_URB) { | |
319 | spin_unlock_irqrestore(&portdata->lock, flags); | |
320 | dbg("%s - write limit hit\n", __FUNCTION__); | |
321 | return 0; | |
322 | } | |
323 | portdata->outstanding_urbs++; | |
324 | spin_unlock_irqrestore(&portdata->lock, flags); | |
325 | ||
326 | buffer = kmalloc(count, GFP_ATOMIC); | |
327 | if (!buffer) { | |
328 | dev_err(&port->dev, "out of memory\n"); | |
329 | count = -ENOMEM; | |
330 | goto error_no_buffer; | |
331 | } | |
033a3fb9 | 332 | |
17c23274 GKH |
333 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
334 | if (!urb) { | |
335 | dev_err(&port->dev, "no more free urbs\n"); | |
336 | count = -ENOMEM; | |
337 | goto error_no_urb; | |
338 | } | |
033a3fb9 | 339 | |
17c23274 | 340 | memcpy(buffer, buf, count); |
033a3fb9 | 341 | |
17c23274 GKH |
342 | usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, buffer); |
343 | ||
344 | usb_fill_bulk_urb(urb, serial->dev, | |
345 | usb_sndbulkpipe(serial->dev, | |
346 | port->bulk_out_endpointAddress), | |
347 | buffer, count, sierra_outdat_callback, port); | |
348 | ||
349 | /* send it down the pipe */ | |
350 | status = usb_submit_urb(urb, GFP_ATOMIC); | |
351 | if (status) { | |
352 | dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " | |
353 | "with status = %d\n", __FUNCTION__, status); | |
354 | count = status; | |
355 | goto error; | |
033a3fb9 KL |
356 | } |
357 | ||
17c23274 GKH |
358 | /* we are done with this urb, so let the host driver |
359 | * really free it when it is finished with it */ | |
360 | usb_free_urb(urb); | |
361 | ||
362 | return count; | |
363 | error: | |
364 | usb_free_urb(urb); | |
365 | error_no_urb: | |
366 | kfree(buffer); | |
367 | error_no_buffer: | |
368 | spin_lock_irqsave(&portdata->lock, flags); | |
369 | --portdata->outstanding_urbs; | |
370 | spin_unlock_irqrestore(&portdata->lock, flags); | |
033a3fb9 KL |
371 | return count; |
372 | } | |
373 | ||
374 | static void sierra_indat_callback(struct urb *urb) | |
375 | { | |
376 | int err; | |
377 | int endpoint; | |
378 | struct usb_serial_port *port; | |
379 | struct tty_struct *tty; | |
380 | unsigned char *data = urb->transfer_buffer; | |
17dd2215 | 381 | int status = urb->status; |
033a3fb9 KL |
382 | |
383 | dbg("%s: %p", __FUNCTION__, urb); | |
384 | ||
385 | endpoint = usb_pipeendpoint(urb->pipe); | |
386 | port = (struct usb_serial_port *) urb->context; | |
387 | ||
17dd2215 | 388 | if (status) { |
033a3fb9 | 389 | dbg("%s: nonzero status: %d on endpoint %02x.", |
17dd2215 | 390 | __FUNCTION__, status, endpoint); |
033a3fb9 KL |
391 | } else { |
392 | tty = port->tty; | |
393 | if (urb->actual_length) { | |
394 | tty_buffer_request_room(tty, urb->actual_length); | |
395 | tty_insert_flip_string(tty, data, urb->actual_length); | |
396 | tty_flip_buffer_push(tty); | |
397 | } else { | |
398 | dbg("%s: empty read urb received", __FUNCTION__); | |
399 | } | |
400 | ||
401 | /* Resubmit urb so we continue receiving */ | |
17dd2215 | 402 | if (port->open_count && status != -ESHUTDOWN) { |
033a3fb9 KL |
403 | err = usb_submit_urb(urb, GFP_ATOMIC); |
404 | if (err) | |
17c23274 | 405 | dev_err(&port->dev, "resubmit read urb failed." |
898eb71c | 406 | "(%d)\n", err); |
033a3fb9 KL |
407 | } |
408 | } | |
409 | return; | |
410 | } | |
411 | ||
033a3fb9 KL |
412 | static void sierra_instat_callback(struct urb *urb) |
413 | { | |
414 | int err; | |
17dd2215 | 415 | int status = urb->status; |
033a3fb9 KL |
416 | struct usb_serial_port *port = (struct usb_serial_port *) urb->context; |
417 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
418 | struct usb_serial *serial = port->serial; | |
419 | ||
420 | dbg("%s", __FUNCTION__); | |
421 | dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata); | |
422 | ||
17dd2215 | 423 | if (status == 0) { |
033a3fb9 KL |
424 | struct usb_ctrlrequest *req_pkt = |
425 | (struct usb_ctrlrequest *)urb->transfer_buffer; | |
426 | ||
427 | if (!req_pkt) { | |
428 | dbg("%s: NULL req_pkt\n", __FUNCTION__); | |
429 | return; | |
430 | } | |
431 | if ((req_pkt->bRequestType == 0xA1) && | |
432 | (req_pkt->bRequest == 0x20)) { | |
433 | int old_dcd_state; | |
434 | unsigned char signals = *((unsigned char *) | |
435 | urb->transfer_buffer + | |
436 | sizeof(struct usb_ctrlrequest)); | |
437 | ||
438 | dbg("%s: signal x%x", __FUNCTION__, signals); | |
439 | ||
440 | old_dcd_state = portdata->dcd_state; | |
441 | portdata->cts_state = 1; | |
442 | portdata->dcd_state = ((signals & 0x01) ? 1 : 0); | |
443 | portdata->dsr_state = ((signals & 0x02) ? 1 : 0); | |
444 | portdata->ri_state = ((signals & 0x08) ? 1 : 0); | |
445 | ||
446 | if (port->tty && !C_CLOCAL(port->tty) && | |
447 | old_dcd_state && !portdata->dcd_state) | |
448 | tty_hangup(port->tty); | |
449 | } else { | |
450 | dbg("%s: type %x req %x", __FUNCTION__, | |
451 | req_pkt->bRequestType,req_pkt->bRequest); | |
452 | } | |
453 | } else | |
17dd2215 | 454 | dbg("%s: error %d", __FUNCTION__, status); |
033a3fb9 KL |
455 | |
456 | /* Resubmit urb so we continue receiving IRQ data */ | |
17dd2215 | 457 | if (status != -ESHUTDOWN) { |
033a3fb9 KL |
458 | urb->dev = serial->dev; |
459 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
460 | if (err) | |
461 | dbg("%s: resubmit intr urb failed. (%d)", | |
462 | __FUNCTION__, err); | |
463 | } | |
464 | } | |
465 | ||
466 | static int sierra_write_room(struct usb_serial_port *port) | |
467 | { | |
17c23274 GKH |
468 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
469 | unsigned long flags; | |
033a3fb9 | 470 | |
17c23274 | 471 | dbg("%s - port %d", __FUNCTION__, port->number); |
033a3fb9 | 472 | |
17c23274 GKH |
473 | /* try to give a good number back based on if we have any free urbs at |
474 | * this point in time */ | |
475 | spin_lock_irqsave(&portdata->lock, flags); | |
476 | if (portdata->outstanding_urbs > N_OUT_URB * 2 / 3) { | |
477 | spin_unlock_irqrestore(&portdata->lock, flags); | |
478 | dbg("%s - write limit hit\n", __FUNCTION__); | |
479 | return 0; | |
033a3fb9 | 480 | } |
17c23274 | 481 | spin_unlock_irqrestore(&portdata->lock, flags); |
033a3fb9 | 482 | |
17c23274 | 483 | return 2048; |
033a3fb9 KL |
484 | } |
485 | ||
486 | static int sierra_chars_in_buffer(struct usb_serial_port *port) | |
487 | { | |
17c23274 GKH |
488 | dbg("%s - port %d", __FUNCTION__, port->number); |
489 | ||
490 | /* | |
491 | * We can't really account for how much data we | |
492 | * have sent out, but hasn't made it through to the | |
493 | * device as we can't see the backend here, so just | |
494 | * tell the tty layer that everything is flushed. | |
495 | */ | |
496 | return 0; | |
033a3fb9 KL |
497 | } |
498 | ||
499 | static int sierra_open(struct usb_serial_port *port, struct file *filp) | |
500 | { | |
501 | struct sierra_port_private *portdata; | |
502 | struct usb_serial *serial = port->serial; | |
9e85c5f6 | 503 | int i; |
033a3fb9 | 504 | struct urb *urb; |
e43062dd | 505 | int result; |
033a3fb9 KL |
506 | |
507 | portdata = usb_get_serial_port_data(port); | |
508 | ||
509 | dbg("%s", __FUNCTION__); | |
510 | ||
511 | /* Set some sane defaults */ | |
512 | portdata->rts_state = 1; | |
513 | portdata->dtr_state = 1; | |
514 | ||
515 | /* Reset low level data toggle and start reading from endpoints */ | |
516 | for (i = 0; i < N_IN_URB; i++) { | |
517 | urb = portdata->in_urbs[i]; | |
9e85c5f6 | 518 | if (!urb) |
033a3fb9 KL |
519 | continue; |
520 | if (urb->dev != serial->dev) { | |
521 | dbg("%s: dev %p != %p", __FUNCTION__, | |
522 | urb->dev, serial->dev); | |
523 | continue; | |
524 | } | |
525 | ||
526 | /* | |
527 | * make sure endpoint data toggle is synchronized with the | |
528 | * device | |
529 | */ | |
530 | usb_clear_halt(urb->dev, urb->pipe); | |
531 | ||
9e85c5f6 GKH |
532 | result = usb_submit_urb(urb, GFP_KERNEL); |
533 | if (result) { | |
898eb71c | 534 | dev_err(&port->dev, "submit urb %d failed (%d) %d\n", |
9e85c5f6 | 535 | i, result, urb->transfer_buffer_length); |
033a3fb9 KL |
536 | } |
537 | } | |
538 | ||
033a3fb9 KL |
539 | port->tty->low_latency = 1; |
540 | ||
541 | sierra_send_setup(port); | |
542 | ||
9e85c5f6 GKH |
543 | /* start up the interrupt endpoint if we have one */ |
544 | if (port->interrupt_in_urb) { | |
545 | result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); | |
546 | if (result) | |
898eb71c | 547 | dev_err(&port->dev, "submit irq_in urb failed %d\n", |
9e85c5f6 GKH |
548 | result); |
549 | } | |
550 | return 0; | |
033a3fb9 KL |
551 | } |
552 | ||
033a3fb9 KL |
553 | static void sierra_close(struct usb_serial_port *port, struct file *filp) |
554 | { | |
555 | int i; | |
556 | struct usb_serial *serial = port->serial; | |
557 | struct sierra_port_private *portdata; | |
558 | ||
559 | dbg("%s", __FUNCTION__); | |
560 | portdata = usb_get_serial_port_data(port); | |
561 | ||
562 | portdata->rts_state = 0; | |
563 | portdata->dtr_state = 0; | |
564 | ||
565 | if (serial->dev) { | |
566 | sierra_send_setup(port); | |
567 | ||
568 | /* Stop reading/writing urbs */ | |
569 | for (i = 0; i < N_IN_URB; i++) | |
9e85c5f6 | 570 | usb_kill_urb(portdata->in_urbs[i]); |
033a3fb9 KL |
571 | } |
572 | ||
9e85c5f6 | 573 | usb_kill_urb(port->interrupt_in_urb); |
033a3fb9 | 574 | |
9e85c5f6 | 575 | port->tty = NULL; |
033a3fb9 KL |
576 | } |
577 | ||
033a3fb9 KL |
578 | static int sierra_startup(struct usb_serial *serial) |
579 | { | |
033a3fb9 KL |
580 | struct usb_serial_port *port; |
581 | struct sierra_port_private *portdata; | |
9e85c5f6 GKH |
582 | struct urb *urb; |
583 | int i; | |
584 | int j; | |
033a3fb9 KL |
585 | |
586 | dbg("%s", __FUNCTION__); | |
587 | ||
112225b1 KL |
588 | /*Set Device mode to D0 */ |
589 | sierra_set_power_state(serial->dev, 0x0000); | |
590 | ||
033a3fb9 KL |
591 | /* Now setup per port private data */ |
592 | for (i = 0; i < serial->num_ports; i++) { | |
593 | port = serial->port[i]; | |
594 | portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); | |
595 | if (!portdata) { | |
596 | dbg("%s: kmalloc for sierra_port_private (%d) failed!.", | |
597 | __FUNCTION__, i); | |
17c23274 | 598 | return -ENOMEM; |
033a3fb9 | 599 | } |
17c23274 | 600 | spin_lock_init(&portdata->lock); |
033a3fb9 KL |
601 | |
602 | usb_set_serial_port_data(port, portdata); | |
603 | ||
9e85c5f6 GKH |
604 | /* initialize the in urbs */ |
605 | for (j = 0; j < N_IN_URB; ++j) { | |
606 | urb = usb_alloc_urb(0, GFP_KERNEL); | |
607 | if (urb == NULL) { | |
608 | dbg("%s: alloc for in port failed.", | |
609 | __FUNCTION__); | |
610 | continue; | |
611 | } | |
612 | /* Fill URB using supplied data. */ | |
613 | usb_fill_bulk_urb(urb, serial->dev, | |
614 | usb_rcvbulkpipe(serial->dev, | |
615 | port->bulk_in_endpointAddress), | |
616 | portdata->in_buffer[j], IN_BUFLEN, | |
617 | sierra_indat_callback, port); | |
618 | portdata->in_urbs[j] = urb; | |
619 | } | |
033a3fb9 KL |
620 | } |
621 | ||
17c23274 | 622 | return 0; |
033a3fb9 KL |
623 | } |
624 | ||
625 | static void sierra_shutdown(struct usb_serial *serial) | |
626 | { | |
627 | int i, j; | |
628 | struct usb_serial_port *port; | |
629 | struct sierra_port_private *portdata; | |
630 | ||
631 | dbg("%s", __FUNCTION__); | |
632 | ||
033a3fb9 KL |
633 | for (i = 0; i < serial->num_ports; ++i) { |
634 | port = serial->port[i]; | |
f094e4f3 GKH |
635 | if (!port) |
636 | continue; | |
033a3fb9 | 637 | portdata = usb_get_serial_port_data(port); |
f094e4f3 GKH |
638 | if (!portdata) |
639 | continue; | |
033a3fb9 KL |
640 | |
641 | for (j = 0; j < N_IN_URB; j++) { | |
9e85c5f6 GKH |
642 | usb_kill_urb(portdata->in_urbs[j]); |
643 | usb_free_urb(portdata->in_urbs[j]); | |
644 | portdata->in_urbs[j] = NULL; | |
033a3fb9 | 645 | } |
9e85c5f6 GKH |
646 | kfree(portdata); |
647 | usb_set_serial_port_data(port, NULL); | |
033a3fb9 KL |
648 | } |
649 | } | |
650 | ||
964ee1de GKH |
651 | static struct usb_serial_driver sierra_1port_device = { |
652 | .driver = { | |
653 | .owner = THIS_MODULE, | |
654 | .name = "sierra1", | |
655 | }, | |
656 | .description = "Sierra USB modem (1 port)", | |
657 | .id_table = id_table_1port, | |
d9b1b787 | 658 | .usb_driver = &sierra_driver, |
964ee1de GKH |
659 | .num_interrupt_in = NUM_DONT_CARE, |
660 | .num_bulk_in = 1, | |
661 | .num_bulk_out = 1, | |
662 | .num_ports = 1, | |
663 | .open = sierra_open, | |
664 | .close = sierra_close, | |
665 | .write = sierra_write, | |
666 | .write_room = sierra_write_room, | |
667 | .chars_in_buffer = sierra_chars_in_buffer, | |
668 | .throttle = sierra_rx_throttle, | |
669 | .unthrottle = sierra_rx_unthrottle, | |
670 | .ioctl = sierra_ioctl, | |
671 | .set_termios = sierra_set_termios, | |
672 | .break_ctl = sierra_break_ctl, | |
673 | .tiocmget = sierra_tiocmget, | |
674 | .tiocmset = sierra_tiocmset, | |
675 | .attach = sierra_startup, | |
676 | .shutdown = sierra_shutdown, | |
677 | .read_int_callback = sierra_instat_callback, | |
678 | }; | |
679 | ||
680 | static struct usb_serial_driver sierra_3port_device = { | |
681 | .driver = { | |
682 | .owner = THIS_MODULE, | |
683 | .name = "sierra3", | |
684 | }, | |
685 | .description = "Sierra USB modem (3 port)", | |
686 | .id_table = id_table_3port, | |
d9b1b787 | 687 | .usb_driver = &sierra_driver, |
964ee1de GKH |
688 | .num_interrupt_in = NUM_DONT_CARE, |
689 | .num_bulk_in = 3, | |
690 | .num_bulk_out = 3, | |
691 | .num_ports = 3, | |
692 | .open = sierra_open, | |
693 | .close = sierra_close, | |
694 | .write = sierra_write, | |
695 | .write_room = sierra_write_room, | |
696 | .chars_in_buffer = sierra_chars_in_buffer, | |
697 | .throttle = sierra_rx_throttle, | |
698 | .unthrottle = sierra_rx_unthrottle, | |
699 | .ioctl = sierra_ioctl, | |
700 | .set_termios = sierra_set_termios, | |
701 | .break_ctl = sierra_break_ctl, | |
702 | .tiocmget = sierra_tiocmget, | |
703 | .tiocmset = sierra_tiocmset, | |
704 | .attach = sierra_startup, | |
705 | .shutdown = sierra_shutdown, | |
706 | .read_int_callback = sierra_instat_callback, | |
707 | }; | |
708 | ||
709 | /* Functions used by new usb-serial code. */ | |
710 | static int __init sierra_init(void) | |
711 | { | |
712 | int retval; | |
713 | retval = usb_serial_register(&sierra_1port_device); | |
714 | if (retval) | |
715 | goto failed_1port_device_register; | |
716 | retval = usb_serial_register(&sierra_3port_device); | |
717 | if (retval) | |
718 | goto failed_3port_device_register; | |
719 | ||
720 | ||
721 | retval = usb_register(&sierra_driver); | |
722 | if (retval) | |
723 | goto failed_driver_register; | |
724 | ||
725 | info(DRIVER_DESC ": " DRIVER_VERSION); | |
726 | ||
727 | return 0; | |
728 | ||
729 | failed_driver_register: | |
730 | usb_serial_deregister(&sierra_3port_device); | |
731 | failed_3port_device_register: | |
732 | usb_serial_deregister(&sierra_1port_device); | |
733 | failed_1port_device_register: | |
734 | return retval; | |
735 | } | |
736 | ||
737 | static void __exit sierra_exit(void) | |
738 | { | |
739 | usb_deregister (&sierra_driver); | |
740 | usb_serial_deregister(&sierra_1port_device); | |
741 | usb_serial_deregister(&sierra_3port_device); | |
742 | } | |
743 | ||
744 | module_init(sierra_init); | |
745 | module_exit(sierra_exit); | |
746 | ||
033a3fb9 KL |
747 | MODULE_AUTHOR(DRIVER_AUTHOR); |
748 | MODULE_DESCRIPTION(DRIVER_DESC); | |
749 | MODULE_VERSION(DRIVER_VERSION); | |
69de51fd | 750 | MODULE_LICENSE("GPL"); |
033a3fb9 KL |
751 | |
752 | #ifdef CONFIG_USB_DEBUG | |
753 | module_param(debug, bool, S_IRUGO | S_IWUSR); | |
754 | MODULE_PARM_DESC(debug, "Debug messages"); | |
755 | #endif | |
756 |