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Commit | Line | Data |
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69de51fd | 1 | /* |
033a3fb9 KL |
2 | USB Driver for Sierra Wireless |
3 | ||
228426ed | 4 | Copyright (C) 2006, 2007, 2008 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 | ||
228426ed | 17 | #define DRIVER_VERSION "v.1.2.7" |
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> |
228426ed | 29 | #include <linux/usb/ch9.h> |
69de51fd | 30 | |
228426ed KL |
31 | #define SWIMS_USB_REQUEST_SetPower 0x00 |
32 | #define SWIMS_USB_REQUEST_SetNmea 0x07 | |
112225b1 | 33 | #define SWIMS_USB_REQUEST_SetMode 0x0B |
228426ed | 34 | #define SWIMS_USB_REQUEST_TYPE_VSC_SET 0x40 |
112225b1 KL |
35 | #define SWIMS_SET_MODE_Modem 0x0001 |
36 | ||
37 | /* per port private data */ | |
38 | #define N_IN_URB 4 | |
39 | #define N_OUT_URB 4 | |
40 | #define IN_BUFLEN 4096 | |
41 | ||
42 | static int debug; | |
228426ed KL |
43 | static int nmea; |
44 | static int truinstall = 1; | |
112225b1 KL |
45 | |
46 | enum devicetype { | |
47 | DEVICE_3_PORT = 0, | |
48 | DEVICE_1_PORT = 1, | |
49 | DEVICE_INSTALLER = 2, | |
50 | }; | |
51 | ||
82a24e68 | 52 | static int sierra_set_power_state(struct usb_device *udev, __u16 swiState) |
112225b1 KL |
53 | { |
54 | int result; | |
898eb71c | 55 | dev_dbg(&udev->dev, "%s", "SET POWER STATE\n"); |
112225b1 | 56 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
228426ed KL |
57 | SWIMS_USB_REQUEST_SetPower, /* __u8 request */ |
58 | SWIMS_USB_REQUEST_TYPE_VSC_SET, /* __u8 request type */ | |
59 | swiState, /* __u16 value */ | |
60 | 0, /* __u16 index */ | |
61 | NULL, /* void *data */ | |
62 | 0, /* __u16 size */ | |
63 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
112225b1 KL |
64 | return result; |
65 | } | |
66 | ||
228426ed | 67 | static int sierra_set_ms_mode(struct usb_device *udev, __u16 eSWocMode) |
112225b1 KL |
68 | { |
69 | int result; | |
898eb71c | 70 | dev_dbg(&udev->dev, "%s", "DEVICE MODE SWITCH\n"); |
112225b1 KL |
71 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
72 | SWIMS_USB_REQUEST_SetMode, /* __u8 request */ | |
228426ed KL |
73 | SWIMS_USB_REQUEST_TYPE_VSC_SET, /* __u8 request type */ |
74 | eSWocMode, /* __u16 value */ | |
75 | 0x0000, /* __u16 index */ | |
112225b1 KL |
76 | NULL, /* void *data */ |
77 | 0, /* __u16 size */ | |
78 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
79 | return result; | |
80 | } | |
81 | ||
228426ed | 82 | static int sierra_vsc_set_nmea(struct usb_device *udev, __u16 enable) |
112225b1 KL |
83 | { |
84 | int result; | |
228426ed KL |
85 | dev_dbg(&udev->dev, "%s", "NMEA Enable sent\n"); |
86 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), | |
87 | SWIMS_USB_REQUEST_SetNmea, /* __u8 request */ | |
88 | SWIMS_USB_REQUEST_TYPE_VSC_SET, /* __u8 request type */ | |
89 | enable, /* __u16 value */ | |
90 | 0x0000, /* __u16 index */ | |
91 | NULL, /* void *data */ | |
92 | 0, /* __u16 size */ | |
93 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
94 | return result; | |
95 | } | |
96 | ||
97 | static int sierra_calc_num_ports(struct usb_serial *serial) | |
98 | { | |
99 | int result; | |
100 | int *num_ports = usb_get_serial_data(serial); | |
101 | ||
102 | result = *num_ports; | |
103 | ||
104 | if (result) { | |
105 | kfree(num_ports); | |
106 | usb_set_serial_data(serial, NULL); | |
107 | } | |
108 | ||
109 | return result; | |
110 | } | |
111 | ||
112 | static int sierra_probe(struct usb_serial *serial, | |
113 | const struct usb_device_id *id) | |
114 | { | |
115 | int result = 0; | |
112225b1 | 116 | struct usb_device *udev; |
228426ed KL |
117 | int *num_ports; |
118 | u8 ifnum; | |
112225b1 | 119 | |
228426ed KL |
120 | num_ports = kmalloc(sizeof(*num_ports), GFP_KERNEL); |
121 | if (!num_ports) | |
122 | return -ENOMEM; | |
123 | ||
124 | ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber; | |
125 | udev = serial->dev; | |
112225b1 KL |
126 | |
127 | /* Check if in installer mode */ | |
228426ed KL |
128 | if (truinstall && id->driver_info == DEVICE_INSTALLER) { |
129 | dev_dbg(&udev->dev, "%s", "FOUND TRU-INSTALL DEVICE(SW)\n"); | |
112225b1 | 130 | result = sierra_set_ms_mode(udev, SWIMS_SET_MODE_Modem); |
228426ed KL |
131 | /* Don't bind to the device when in installer mode */ |
132 | kfree(num_ports); | |
112225b1 | 133 | return -EIO; |
228426ed KL |
134 | } else if (id->driver_info == DEVICE_1_PORT) |
135 | *num_ports = 1; | |
136 | else if (ifnum == 0x99) | |
137 | *num_ports = 0; | |
138 | else | |
139 | *num_ports = 3; | |
140 | /* | |
141 | * save off our num_ports info so that we can use it in the | |
142 | * calc_num_ports callback | |
143 | */ | |
144 | usb_set_serial_data(serial, (void *)num_ports); | |
112225b1 | 145 | |
228426ed | 146 | return result; |
112225b1 | 147 | } |
033a3fb9 | 148 | |
69de51fd | 149 | static struct usb_device_id id_table [] = { |
e43062dd | 150 | { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ |
69de51fd | 151 | { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ |
e43062dd | 152 | { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ |
9454c46a | 153 | { USB_DEVICE(0x0f30, 0x1b1d) }, /* Sierra Wireless MC5720 */ |
69de51fd | 154 | { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ |
b9e13ac3 | 155 | { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */ |
69de51fd | 156 | { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ |
e43062dd | 157 | { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ |
9454c46a | 158 | { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */ |
6835b32c | 159 | { USB_DEVICE(0x1199, 0x0023) }, /* Sierra Wireless AirCard */ |
9454c46a | 160 | |
69de51fd | 161 | { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ |
e43062dd | 162 | { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ |
69de51fd | 163 | { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ |
9454c46a | 164 | { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ |
ed0ccdbb | 165 | { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 (Thinkpad internal) */ |
69de51fd | 166 | { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ |
9454c46a KL |
167 | { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780*/ |
168 | { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781*/ | |
169 | { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ | |
170 | { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ | |
171 | { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */ | |
172 | { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */ | |
6835b32c | 173 | { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */ |
62aad3ab | 174 | { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ |
033a3fb9 | 175 | |
6835b32c KL |
176 | { USB_DEVICE(0x1199, 0x6468) }, /* Sierra Wireless MP3G - EVDO */ |
177 | { USB_DEVICE(0x1199, 0x6469) }, /* Sierra Wireless MP3G - UMTS/HSPA */ | |
178 | ||
112225b1 KL |
179 | { USB_DEVICE(0x1199, 0x0112), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 580 */ |
180 | { USB_DEVICE(0x0F3D, 0x0112), .driver_info = DEVICE_1_PORT }, /* Airprime/Sierra PC 5220 */ | |
181 | ||
182 | { USB_DEVICE(0x1199, 0x0FFF), .driver_info = DEVICE_INSTALLER}, | |
033a3fb9 KL |
183 | { } |
184 | }; | |
964ee1de | 185 | MODULE_DEVICE_TABLE(usb, id_table); |
033a3fb9 | 186 | |
69de51fd | 187 | static struct usb_driver sierra_driver = { |
033a3fb9 | 188 | .name = "sierra", |
228426ed | 189 | .probe = usb_serial_probe, |
033a3fb9 KL |
190 | .disconnect = usb_serial_disconnect, |
191 | .id_table = id_table, | |
964ee1de | 192 | .no_dynamic_id = 1, |
033a3fb9 KL |
193 | }; |
194 | ||
033a3fb9 | 195 | struct sierra_port_private { |
17c23274 GKH |
196 | spinlock_t lock; /* lock the structure */ |
197 | int outstanding_urbs; /* number of out urbs in flight */ | |
198 | ||
033a3fb9 KL |
199 | /* Input endpoints and buffer for this port */ |
200 | struct urb *in_urbs[N_IN_URB]; | |
201 | char in_buffer[N_IN_URB][IN_BUFLEN]; | |
033a3fb9 KL |
202 | |
203 | /* Settings for the port */ | |
204 | int rts_state; /* Handshaking pins (outputs) */ | |
205 | int dtr_state; | |
206 | int cts_state; /* Handshaking pins (inputs) */ | |
207 | int dsr_state; | |
208 | int dcd_state; | |
209 | int ri_state; | |
033a3fb9 KL |
210 | }; |
211 | ||
964ee1de | 212 | static int sierra_send_setup(struct usb_serial_port *port) |
69de51fd | 213 | { |
964ee1de GKH |
214 | struct usb_serial *serial = port->serial; |
215 | struct sierra_port_private *portdata; | |
228426ed | 216 | __u16 interface = 0; |
033a3fb9 | 217 | |
964ee1de | 218 | dbg("%s", __FUNCTION__); |
033a3fb9 | 219 | |
964ee1de | 220 | portdata = usb_get_serial_port_data(port); |
033a3fb9 | 221 | |
964ee1de GKH |
222 | if (port->tty) { |
223 | int val = 0; | |
224 | if (portdata->dtr_state) | |
225 | val |= 0x01; | |
226 | if (portdata->rts_state) | |
227 | val |= 0x02; | |
033a3fb9 | 228 | |
228426ed KL |
229 | /* Determine which port is targeted */ |
230 | if (port->bulk_out_endpointAddress == 2) | |
231 | interface = 0; | |
232 | else if (port->bulk_out_endpointAddress == 4) | |
233 | interface = 1; | |
234 | else if (port->bulk_out_endpointAddress == 5) | |
235 | interface = 2; | |
236 | ||
964ee1de GKH |
237 | return usb_control_msg(serial->dev, |
238 | usb_rcvctrlpipe(serial->dev, 0), | |
228426ed KL |
239 | 0x22, 0x21, val, interface, |
240 | NULL, 0, USB_CTRL_SET_TIMEOUT); | |
964ee1de | 241 | } |
69de51fd | 242 | |
964ee1de | 243 | return 0; |
69de51fd KL |
244 | } |
245 | ||
033a3fb9 KL |
246 | static void sierra_rx_throttle(struct usb_serial_port *port) |
247 | { | |
248 | dbg("%s", __FUNCTION__); | |
249 | } | |
250 | ||
251 | static void sierra_rx_unthrottle(struct usb_serial_port *port) | |
252 | { | |
253 | dbg("%s", __FUNCTION__); | |
254 | } | |
255 | ||
256 | static void sierra_break_ctl(struct usb_serial_port *port, int break_state) | |
257 | { | |
258 | /* Unfortunately, I don't know how to send a break */ | |
259 | dbg("%s", __FUNCTION__); | |
260 | } | |
261 | ||
262 | static void sierra_set_termios(struct usb_serial_port *port, | |
606d099c | 263 | struct ktermios *old_termios) |
033a3fb9 KL |
264 | { |
265 | dbg("%s", __FUNCTION__); | |
ed1f12ec | 266 | tty_termios_copy_hw(port->tty->termios, old_termios); |
033a3fb9 KL |
267 | sierra_send_setup(port); |
268 | } | |
269 | ||
270 | static int sierra_tiocmget(struct usb_serial_port *port, struct file *file) | |
271 | { | |
272 | unsigned int value; | |
273 | struct sierra_port_private *portdata; | |
274 | ||
275 | portdata = usb_get_serial_port_data(port); | |
276 | ||
277 | value = ((portdata->rts_state) ? TIOCM_RTS : 0) | | |
278 | ((portdata->dtr_state) ? TIOCM_DTR : 0) | | |
279 | ((portdata->cts_state) ? TIOCM_CTS : 0) | | |
280 | ((portdata->dsr_state) ? TIOCM_DSR : 0) | | |
281 | ((portdata->dcd_state) ? TIOCM_CAR : 0) | | |
282 | ((portdata->ri_state) ? TIOCM_RNG : 0); | |
283 | ||
284 | return value; | |
285 | } | |
286 | ||
287 | static int sierra_tiocmset(struct usb_serial_port *port, struct file *file, | |
288 | unsigned int set, unsigned int clear) | |
289 | { | |
290 | struct sierra_port_private *portdata; | |
291 | ||
292 | portdata = usb_get_serial_port_data(port); | |
293 | ||
294 | if (set & TIOCM_RTS) | |
295 | portdata->rts_state = 1; | |
296 | if (set & TIOCM_DTR) | |
297 | portdata->dtr_state = 1; | |
298 | ||
299 | if (clear & TIOCM_RTS) | |
300 | portdata->rts_state = 0; | |
301 | if (clear & TIOCM_DTR) | |
302 | portdata->dtr_state = 0; | |
303 | return sierra_send_setup(port); | |
304 | } | |
305 | ||
306 | static int sierra_ioctl(struct usb_serial_port *port, struct file *file, | |
307 | unsigned int cmd, unsigned long arg) | |
308 | { | |
309 | return -ENOIOCTLCMD; | |
310 | } | |
311 | ||
17c23274 GKH |
312 | static void sierra_outdat_callback(struct urb *urb) |
313 | { | |
314 | struct usb_serial_port *port = urb->context; | |
315 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
316 | int status = urb->status; | |
317 | unsigned long flags; | |
318 | ||
319 | dbg("%s - port %d", __FUNCTION__, port->number); | |
320 | ||
321 | /* free up the transfer buffer, as usb_free_urb() does not do this */ | |
322 | kfree(urb->transfer_buffer); | |
323 | ||
324 | if (status) | |
325 | dbg("%s - nonzero write bulk status received: %d", | |
326 | __FUNCTION__, status); | |
327 | ||
328 | spin_lock_irqsave(&portdata->lock, flags); | |
329 | --portdata->outstanding_urbs; | |
330 | spin_unlock_irqrestore(&portdata->lock, flags); | |
331 | ||
332 | usb_serial_port_softint(port); | |
333 | } | |
334 | ||
033a3fb9 KL |
335 | /* Write */ |
336 | static int sierra_write(struct usb_serial_port *port, | |
337 | const unsigned char *buf, int count) | |
338 | { | |
17c23274 GKH |
339 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
340 | struct usb_serial *serial = port->serial; | |
341 | unsigned long flags; | |
342 | unsigned char *buffer; | |
343 | struct urb *urb; | |
344 | int status; | |
033a3fb9 KL |
345 | |
346 | portdata = usb_get_serial_port_data(port); | |
347 | ||
348 | dbg("%s: write (%d chars)", __FUNCTION__, count); | |
349 | ||
17c23274 GKH |
350 | spin_lock_irqsave(&portdata->lock, flags); |
351 | if (portdata->outstanding_urbs > N_OUT_URB) { | |
352 | spin_unlock_irqrestore(&portdata->lock, flags); | |
353 | dbg("%s - write limit hit\n", __FUNCTION__); | |
354 | return 0; | |
355 | } | |
356 | portdata->outstanding_urbs++; | |
357 | spin_unlock_irqrestore(&portdata->lock, flags); | |
358 | ||
359 | buffer = kmalloc(count, GFP_ATOMIC); | |
360 | if (!buffer) { | |
361 | dev_err(&port->dev, "out of memory\n"); | |
362 | count = -ENOMEM; | |
363 | goto error_no_buffer; | |
364 | } | |
033a3fb9 | 365 | |
17c23274 GKH |
366 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
367 | if (!urb) { | |
368 | dev_err(&port->dev, "no more free urbs\n"); | |
369 | count = -ENOMEM; | |
370 | goto error_no_urb; | |
371 | } | |
033a3fb9 | 372 | |
17c23274 | 373 | memcpy(buffer, buf, count); |
033a3fb9 | 374 | |
17c23274 GKH |
375 | usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, buffer); |
376 | ||
377 | usb_fill_bulk_urb(urb, serial->dev, | |
378 | usb_sndbulkpipe(serial->dev, | |
379 | port->bulk_out_endpointAddress), | |
380 | buffer, count, sierra_outdat_callback, port); | |
381 | ||
382 | /* send it down the pipe */ | |
383 | status = usb_submit_urb(urb, GFP_ATOMIC); | |
384 | if (status) { | |
385 | dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " | |
386 | "with status = %d\n", __FUNCTION__, status); | |
387 | count = status; | |
388 | goto error; | |
033a3fb9 KL |
389 | } |
390 | ||
17c23274 GKH |
391 | /* we are done with this urb, so let the host driver |
392 | * really free it when it is finished with it */ | |
393 | usb_free_urb(urb); | |
394 | ||
395 | return count; | |
396 | error: | |
397 | usb_free_urb(urb); | |
398 | error_no_urb: | |
399 | kfree(buffer); | |
400 | error_no_buffer: | |
401 | spin_lock_irqsave(&portdata->lock, flags); | |
402 | --portdata->outstanding_urbs; | |
403 | spin_unlock_irqrestore(&portdata->lock, flags); | |
033a3fb9 KL |
404 | return count; |
405 | } | |
406 | ||
407 | static void sierra_indat_callback(struct urb *urb) | |
408 | { | |
409 | int err; | |
410 | int endpoint; | |
411 | struct usb_serial_port *port; | |
412 | struct tty_struct *tty; | |
413 | unsigned char *data = urb->transfer_buffer; | |
17dd2215 | 414 | int status = urb->status; |
033a3fb9 KL |
415 | |
416 | dbg("%s: %p", __FUNCTION__, urb); | |
417 | ||
418 | endpoint = usb_pipeendpoint(urb->pipe); | |
419 | port = (struct usb_serial_port *) urb->context; | |
420 | ||
17dd2215 | 421 | if (status) { |
033a3fb9 | 422 | dbg("%s: nonzero status: %d on endpoint %02x.", |
17dd2215 | 423 | __FUNCTION__, status, endpoint); |
033a3fb9 KL |
424 | } else { |
425 | tty = port->tty; | |
426 | if (urb->actual_length) { | |
427 | tty_buffer_request_room(tty, urb->actual_length); | |
428 | tty_insert_flip_string(tty, data, urb->actual_length); | |
429 | tty_flip_buffer_push(tty); | |
430 | } else { | |
431 | dbg("%s: empty read urb received", __FUNCTION__); | |
432 | } | |
433 | ||
434 | /* Resubmit urb so we continue receiving */ | |
17dd2215 | 435 | if (port->open_count && status != -ESHUTDOWN) { |
033a3fb9 KL |
436 | err = usb_submit_urb(urb, GFP_ATOMIC); |
437 | if (err) | |
17c23274 | 438 | dev_err(&port->dev, "resubmit read urb failed." |
898eb71c | 439 | "(%d)\n", err); |
033a3fb9 KL |
440 | } |
441 | } | |
442 | return; | |
443 | } | |
444 | ||
033a3fb9 KL |
445 | static void sierra_instat_callback(struct urb *urb) |
446 | { | |
447 | int err; | |
17dd2215 | 448 | int status = urb->status; |
033a3fb9 KL |
449 | struct usb_serial_port *port = (struct usb_serial_port *) urb->context; |
450 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
451 | struct usb_serial *serial = port->serial; | |
452 | ||
453 | dbg("%s", __FUNCTION__); | |
454 | dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata); | |
455 | ||
17dd2215 | 456 | if (status == 0) { |
033a3fb9 KL |
457 | struct usb_ctrlrequest *req_pkt = |
458 | (struct usb_ctrlrequest *)urb->transfer_buffer; | |
459 | ||
460 | if (!req_pkt) { | |
461 | dbg("%s: NULL req_pkt\n", __FUNCTION__); | |
462 | return; | |
463 | } | |
464 | if ((req_pkt->bRequestType == 0xA1) && | |
465 | (req_pkt->bRequest == 0x20)) { | |
466 | int old_dcd_state; | |
467 | unsigned char signals = *((unsigned char *) | |
468 | urb->transfer_buffer + | |
469 | sizeof(struct usb_ctrlrequest)); | |
470 | ||
471 | dbg("%s: signal x%x", __FUNCTION__, signals); | |
472 | ||
473 | old_dcd_state = portdata->dcd_state; | |
474 | portdata->cts_state = 1; | |
475 | portdata->dcd_state = ((signals & 0x01) ? 1 : 0); | |
476 | portdata->dsr_state = ((signals & 0x02) ? 1 : 0); | |
477 | portdata->ri_state = ((signals & 0x08) ? 1 : 0); | |
478 | ||
479 | if (port->tty && !C_CLOCAL(port->tty) && | |
480 | old_dcd_state && !portdata->dcd_state) | |
481 | tty_hangup(port->tty); | |
482 | } else { | |
483 | dbg("%s: type %x req %x", __FUNCTION__, | |
484 | req_pkt->bRequestType,req_pkt->bRequest); | |
485 | } | |
486 | } else | |
17dd2215 | 487 | dbg("%s: error %d", __FUNCTION__, status); |
033a3fb9 KL |
488 | |
489 | /* Resubmit urb so we continue receiving IRQ data */ | |
17dd2215 | 490 | if (status != -ESHUTDOWN) { |
033a3fb9 KL |
491 | urb->dev = serial->dev; |
492 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
493 | if (err) | |
494 | dbg("%s: resubmit intr urb failed. (%d)", | |
495 | __FUNCTION__, err); | |
496 | } | |
497 | } | |
498 | ||
499 | static int sierra_write_room(struct usb_serial_port *port) | |
500 | { | |
17c23274 GKH |
501 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
502 | unsigned long flags; | |
033a3fb9 | 503 | |
17c23274 | 504 | dbg("%s - port %d", __FUNCTION__, port->number); |
033a3fb9 | 505 | |
17c23274 GKH |
506 | /* try to give a good number back based on if we have any free urbs at |
507 | * this point in time */ | |
508 | spin_lock_irqsave(&portdata->lock, flags); | |
509 | if (portdata->outstanding_urbs > N_OUT_URB * 2 / 3) { | |
510 | spin_unlock_irqrestore(&portdata->lock, flags); | |
511 | dbg("%s - write limit hit\n", __FUNCTION__); | |
512 | return 0; | |
033a3fb9 | 513 | } |
17c23274 | 514 | spin_unlock_irqrestore(&portdata->lock, flags); |
033a3fb9 | 515 | |
17c23274 | 516 | return 2048; |
033a3fb9 KL |
517 | } |
518 | ||
519 | static int sierra_chars_in_buffer(struct usb_serial_port *port) | |
520 | { | |
17c23274 GKH |
521 | dbg("%s - port %d", __FUNCTION__, port->number); |
522 | ||
523 | /* | |
524 | * We can't really account for how much data we | |
525 | * have sent out, but hasn't made it through to the | |
526 | * device as we can't see the backend here, so just | |
527 | * tell the tty layer that everything is flushed. | |
528 | */ | |
529 | return 0; | |
033a3fb9 KL |
530 | } |
531 | ||
532 | static int sierra_open(struct usb_serial_port *port, struct file *filp) | |
533 | { | |
534 | struct sierra_port_private *portdata; | |
535 | struct usb_serial *serial = port->serial; | |
9e85c5f6 | 536 | int i; |
033a3fb9 | 537 | struct urb *urb; |
e43062dd | 538 | int result; |
033a3fb9 KL |
539 | |
540 | portdata = usb_get_serial_port_data(port); | |
541 | ||
542 | dbg("%s", __FUNCTION__); | |
543 | ||
544 | /* Set some sane defaults */ | |
545 | portdata->rts_state = 1; | |
546 | portdata->dtr_state = 1; | |
547 | ||
548 | /* Reset low level data toggle and start reading from endpoints */ | |
549 | for (i = 0; i < N_IN_URB; i++) { | |
550 | urb = portdata->in_urbs[i]; | |
9e85c5f6 | 551 | if (!urb) |
033a3fb9 KL |
552 | continue; |
553 | if (urb->dev != serial->dev) { | |
554 | dbg("%s: dev %p != %p", __FUNCTION__, | |
555 | urb->dev, serial->dev); | |
556 | continue; | |
557 | } | |
558 | ||
559 | /* | |
560 | * make sure endpoint data toggle is synchronized with the | |
561 | * device | |
562 | */ | |
563 | usb_clear_halt(urb->dev, urb->pipe); | |
564 | ||
9e85c5f6 GKH |
565 | result = usb_submit_urb(urb, GFP_KERNEL); |
566 | if (result) { | |
898eb71c | 567 | dev_err(&port->dev, "submit urb %d failed (%d) %d\n", |
9e85c5f6 | 568 | i, result, urb->transfer_buffer_length); |
033a3fb9 KL |
569 | } |
570 | } | |
571 | ||
033a3fb9 KL |
572 | port->tty->low_latency = 1; |
573 | ||
574 | sierra_send_setup(port); | |
575 | ||
9e85c5f6 GKH |
576 | /* start up the interrupt endpoint if we have one */ |
577 | if (port->interrupt_in_urb) { | |
578 | result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); | |
579 | if (result) | |
898eb71c | 580 | dev_err(&port->dev, "submit irq_in urb failed %d\n", |
9e85c5f6 GKH |
581 | result); |
582 | } | |
583 | return 0; | |
033a3fb9 KL |
584 | } |
585 | ||
033a3fb9 KL |
586 | static void sierra_close(struct usb_serial_port *port, struct file *filp) |
587 | { | |
588 | int i; | |
589 | struct usb_serial *serial = port->serial; | |
590 | struct sierra_port_private *portdata; | |
591 | ||
592 | dbg("%s", __FUNCTION__); | |
593 | portdata = usb_get_serial_port_data(port); | |
594 | ||
595 | portdata->rts_state = 0; | |
596 | portdata->dtr_state = 0; | |
597 | ||
598 | if (serial->dev) { | |
e33fe4d8 ON |
599 | mutex_lock(&serial->disc_mutex); |
600 | if (!serial->disconnected) | |
601 | sierra_send_setup(port); | |
602 | mutex_unlock(&serial->disc_mutex); | |
033a3fb9 KL |
603 | |
604 | /* Stop reading/writing urbs */ | |
605 | for (i = 0; i < N_IN_URB; i++) | |
9e85c5f6 | 606 | usb_kill_urb(portdata->in_urbs[i]); |
033a3fb9 KL |
607 | } |
608 | ||
9e85c5f6 | 609 | usb_kill_urb(port->interrupt_in_urb); |
033a3fb9 | 610 | |
9e85c5f6 | 611 | port->tty = NULL; |
033a3fb9 KL |
612 | } |
613 | ||
033a3fb9 KL |
614 | static int sierra_startup(struct usb_serial *serial) |
615 | { | |
033a3fb9 KL |
616 | struct usb_serial_port *port; |
617 | struct sierra_port_private *portdata; | |
9e85c5f6 GKH |
618 | struct urb *urb; |
619 | int i; | |
620 | int j; | |
033a3fb9 KL |
621 | |
622 | dbg("%s", __FUNCTION__); | |
623 | ||
228426ed | 624 | /* Set Device mode to D0 */ |
112225b1 KL |
625 | sierra_set_power_state(serial->dev, 0x0000); |
626 | ||
228426ed KL |
627 | /* Check NMEA and set */ |
628 | if (nmea) | |
629 | sierra_vsc_set_nmea(serial->dev, 1); | |
630 | ||
033a3fb9 KL |
631 | /* Now setup per port private data */ |
632 | for (i = 0; i < serial->num_ports; i++) { | |
633 | port = serial->port[i]; | |
634 | portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); | |
635 | if (!portdata) { | |
636 | dbg("%s: kmalloc for sierra_port_private (%d) failed!.", | |
637 | __FUNCTION__, i); | |
17c23274 | 638 | return -ENOMEM; |
033a3fb9 | 639 | } |
17c23274 | 640 | spin_lock_init(&portdata->lock); |
033a3fb9 KL |
641 | |
642 | usb_set_serial_port_data(port, portdata); | |
643 | ||
9e85c5f6 GKH |
644 | /* initialize the in urbs */ |
645 | for (j = 0; j < N_IN_URB; ++j) { | |
646 | urb = usb_alloc_urb(0, GFP_KERNEL); | |
647 | if (urb == NULL) { | |
648 | dbg("%s: alloc for in port failed.", | |
649 | __FUNCTION__); | |
650 | continue; | |
651 | } | |
652 | /* Fill URB using supplied data. */ | |
653 | usb_fill_bulk_urb(urb, serial->dev, | |
654 | usb_rcvbulkpipe(serial->dev, | |
655 | port->bulk_in_endpointAddress), | |
656 | portdata->in_buffer[j], IN_BUFLEN, | |
657 | sierra_indat_callback, port); | |
658 | portdata->in_urbs[j] = urb; | |
659 | } | |
033a3fb9 KL |
660 | } |
661 | ||
17c23274 | 662 | return 0; |
033a3fb9 KL |
663 | } |
664 | ||
665 | static void sierra_shutdown(struct usb_serial *serial) | |
666 | { | |
667 | int i, j; | |
668 | struct usb_serial_port *port; | |
669 | struct sierra_port_private *portdata; | |
670 | ||
671 | dbg("%s", __FUNCTION__); | |
672 | ||
033a3fb9 KL |
673 | for (i = 0; i < serial->num_ports; ++i) { |
674 | port = serial->port[i]; | |
f094e4f3 GKH |
675 | if (!port) |
676 | continue; | |
033a3fb9 | 677 | portdata = usb_get_serial_port_data(port); |
f094e4f3 GKH |
678 | if (!portdata) |
679 | continue; | |
033a3fb9 KL |
680 | |
681 | for (j = 0; j < N_IN_URB; j++) { | |
9e85c5f6 GKH |
682 | usb_kill_urb(portdata->in_urbs[j]); |
683 | usb_free_urb(portdata->in_urbs[j]); | |
684 | portdata->in_urbs[j] = NULL; | |
033a3fb9 | 685 | } |
9e85c5f6 GKH |
686 | kfree(portdata); |
687 | usb_set_serial_port_data(port, NULL); | |
033a3fb9 KL |
688 | } |
689 | } | |
690 | ||
228426ed | 691 | static struct usb_serial_driver sierra_device = { |
964ee1de GKH |
692 | .driver = { |
693 | .owner = THIS_MODULE, | |
694 | .name = "sierra1", | |
695 | }, | |
228426ed KL |
696 | .description = "Sierra USB modem", |
697 | .id_table = id_table, | |
d9b1b787 | 698 | .usb_driver = &sierra_driver, |
964ee1de | 699 | .num_interrupt_in = NUM_DONT_CARE, |
228426ed KL |
700 | .num_bulk_in = NUM_DONT_CARE, |
701 | .num_bulk_out = NUM_DONT_CARE, | |
702 | .calc_num_ports = sierra_calc_num_ports, | |
703 | .probe = sierra_probe, | |
964ee1de GKH |
704 | .open = sierra_open, |
705 | .close = sierra_close, | |
706 | .write = sierra_write, | |
707 | .write_room = sierra_write_room, | |
708 | .chars_in_buffer = sierra_chars_in_buffer, | |
709 | .throttle = sierra_rx_throttle, | |
710 | .unthrottle = sierra_rx_unthrottle, | |
711 | .ioctl = sierra_ioctl, | |
712 | .set_termios = sierra_set_termios, | |
713 | .break_ctl = sierra_break_ctl, | |
714 | .tiocmget = sierra_tiocmget, | |
715 | .tiocmset = sierra_tiocmset, | |
716 | .attach = sierra_startup, | |
717 | .shutdown = sierra_shutdown, | |
718 | .read_int_callback = sierra_instat_callback, | |
719 | }; | |
720 | ||
721 | /* Functions used by new usb-serial code. */ | |
722 | static int __init sierra_init(void) | |
723 | { | |
724 | int retval; | |
228426ed | 725 | retval = usb_serial_register(&sierra_device); |
964ee1de | 726 | if (retval) |
228426ed | 727 | goto failed_device_register; |
964ee1de GKH |
728 | |
729 | ||
730 | retval = usb_register(&sierra_driver); | |
731 | if (retval) | |
732 | goto failed_driver_register; | |
733 | ||
734 | info(DRIVER_DESC ": " DRIVER_VERSION); | |
735 | ||
736 | return 0; | |
737 | ||
738 | failed_driver_register: | |
228426ed KL |
739 | usb_serial_deregister(&sierra_device); |
740 | failed_device_register: | |
964ee1de GKH |
741 | return retval; |
742 | } | |
743 | ||
744 | static void __exit sierra_exit(void) | |
745 | { | |
746 | usb_deregister (&sierra_driver); | |
228426ed | 747 | usb_serial_deregister(&sierra_device); |
964ee1de GKH |
748 | } |
749 | ||
750 | module_init(sierra_init); | |
751 | module_exit(sierra_exit); | |
752 | ||
033a3fb9 KL |
753 | MODULE_AUTHOR(DRIVER_AUTHOR); |
754 | MODULE_DESCRIPTION(DRIVER_DESC); | |
755 | MODULE_VERSION(DRIVER_VERSION); | |
69de51fd | 756 | MODULE_LICENSE("GPL"); |
033a3fb9 | 757 | |
228426ed KL |
758 | module_param(truinstall, bool, 0); |
759 | MODULE_PARM_DESC(truinstall, "TRU-Install support"); | |
760 | ||
761 | module_param(nmea, bool, 0); | |
762 | MODULE_PARM_DESC(nmea, "NMEA streaming"); | |
763 | ||
033a3fb9 KL |
764 | #ifdef CONFIG_USB_DEBUG |
765 | module_param(debug, bool, S_IRUGO | S_IWUSR); | |
766 | MODULE_PARM_DESC(debug, "Debug messages"); | |
767 | #endif | |
768 |