Commit | Line | Data |
---|---|---|
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 */ |
69de51fd | 103 | { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ |
e43062dd | 104 | { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ |
9454c46a KL |
105 | { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */ |
106 | ||
69de51fd | 107 | { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ |
e43062dd | 108 | { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ |
69de51fd | 109 | { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ |
9454c46a | 110 | { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ |
69de51fd | 111 | { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ |
9454c46a KL |
112 | { 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 */ | |
033a3fb9 | 118 | |
112225b1 KL |
119 | { 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}, | |
033a3fb9 KL |
123 | { } |
124 | }; | |
964ee1de | 125 | MODULE_DEVICE_TABLE(usb, id_table); |
033a3fb9 KL |
126 | |
127 | static 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 */ | |
69de51fd KL |
130 | { } |
131 | }; | |
033a3fb9 KL |
132 | |
133 | static struct usb_device_id id_table_3port [] = { | |
e43062dd | 134 | { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ |
033a3fb9 | 135 | { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ |
9454c46a | 136 | { USB_DEVICE(0x0f30, 0x1b1d) }, /* Sierra Wireless MC5720 */ |
e43062dd | 137 | { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ |
033a3fb9 | 138 | { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ |
033a3fb9 | 139 | { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ |
e43062dd | 140 | { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ |
9454c46a | 141 | { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U*/ |
112225b1 | 142 | |
033a3fb9 | 143 | { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ |
e43062dd | 144 | { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ |
033a3fb9 | 145 | { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ |
9454c46a | 146 | { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ |
033a3fb9 | 147 | { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ |
9454c46a KL |
148 | { 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 */ | |
033a3fb9 KL |
154 | { } |
155 | }; | |
156 | ||
69de51fd | 157 | static struct usb_driver sierra_driver = { |
033a3fb9 | 158 | .name = "sierra", |
112225b1 | 159 | .probe = sierra_probe, |
033a3fb9 KL |
160 | .disconnect = usb_serial_disconnect, |
161 | .id_table = id_table, | |
964ee1de | 162 | .no_dynamic_id = 1, |
033a3fb9 KL |
163 | }; |
164 | ||
165 | ||
033a3fb9 | 166 | struct sierra_port_private { |
17c23274 GKH |
167 | spinlock_t lock; /* lock the structure */ |
168 | int outstanding_urbs; /* number of out urbs in flight */ | |
169 | ||
033a3fb9 KL |
170 | /* Input endpoints and buffer for this port */ |
171 | struct urb *in_urbs[N_IN_URB]; | |
172 | char in_buffer[N_IN_URB][IN_BUFLEN]; | |
033a3fb9 KL |
173 | |
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; | |
033a3fb9 KL |
181 | }; |
182 | ||
964ee1de | 183 | static int sierra_send_setup(struct usb_serial_port *port) |
69de51fd | 184 | { |
964ee1de GKH |
185 | struct usb_serial *serial = port->serial; |
186 | struct sierra_port_private *portdata; | |
033a3fb9 | 187 | |
964ee1de | 188 | dbg("%s", __FUNCTION__); |
033a3fb9 | 189 | |
964ee1de | 190 | portdata = usb_get_serial_port_data(port); |
033a3fb9 | 191 | |
964ee1de GKH |
192 | if (port->tty) { |
193 | int val = 0; | |
194 | if (portdata->dtr_state) | |
195 | val |= 0x01; | |
196 | if (portdata->rts_state) | |
197 | val |= 0x02; | |
033a3fb9 | 198 | |
964ee1de GKH |
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 | } | |
69de51fd | 203 | |
964ee1de | 204 | return 0; |
69de51fd KL |
205 | } |
206 | ||
033a3fb9 KL |
207 | static void sierra_rx_throttle(struct usb_serial_port *port) |
208 | { | |
209 | dbg("%s", __FUNCTION__); | |
210 | } | |
211 | ||
212 | static void sierra_rx_unthrottle(struct usb_serial_port *port) | |
213 | { | |
214 | dbg("%s", __FUNCTION__); | |
215 | } | |
216 | ||
217 | static 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 | ||
223 | static void sierra_set_termios(struct usb_serial_port *port, | |
606d099c | 224 | struct ktermios *old_termios) |
033a3fb9 KL |
225 | { |
226 | dbg("%s", __FUNCTION__); | |
227 | ||
228 | sierra_send_setup(port); | |
229 | } | |
230 | ||
231 | static 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 | ||
248 | static 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 | ||
267 | static int sierra_ioctl(struct usb_serial_port *port, struct file *file, | |
268 | unsigned int cmd, unsigned long arg) | |
269 | { | |
270 | return -ENOIOCTLCMD; | |
271 | } | |
272 | ||
17c23274 GKH |
273 | static 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 | ||
033a3fb9 KL |
296 | /* Write */ |
297 | static int sierra_write(struct usb_serial_port *port, | |
298 | const unsigned char *buf, int count) | |
299 | { | |
17c23274 GKH |
300 | 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; | |
033a3fb9 KL |
306 | |
307 | portdata = usb_get_serial_port_data(port); | |
308 | ||
309 | dbg("%s: write (%d chars)", __FUNCTION__, count); | |
310 | ||
17c23274 GKH |
311 | 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); | |
319 | ||
320 | 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; | |
325 | } | |
033a3fb9 | 326 | |
17c23274 GKH |
327 | 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 | } | |
033a3fb9 | 333 | |
17c23274 | 334 | memcpy(buffer, buf, count); |
033a3fb9 | 335 | |
17c23274 GKH |
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; | |
033a3fb9 KL |
350 | } |
351 | ||
17c23274 GKH |
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; | |
357 | error: | |
358 | usb_free_urb(urb); | |
359 | error_no_urb: | |
360 | kfree(buffer); | |
361 | error_no_buffer: | |
362 | spin_lock_irqsave(&portdata->lock, flags); | |
363 | --portdata->outstanding_urbs; | |
364 | spin_unlock_irqrestore(&portdata->lock, flags); | |
033a3fb9 KL |
365 | return count; |
366 | } | |
367 | ||
368 | static 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; | |
17dd2215 | 375 | int status = urb->status; |
033a3fb9 KL |
376 | |
377 | dbg("%s: %p", __FUNCTION__, urb); | |
378 | ||
379 | endpoint = usb_pipeendpoint(urb->pipe); | |
380 | port = (struct usb_serial_port *) urb->context; | |
381 | ||
17dd2215 | 382 | if (status) { |
033a3fb9 | 383 | dbg("%s: nonzero status: %d on endpoint %02x.", |
17dd2215 | 384 | __FUNCTION__, status, endpoint); |
033a3fb9 KL |
385 | } 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 */ | |
17dd2215 | 396 | if (port->open_count && status != -ESHUTDOWN) { |
033a3fb9 KL |
397 | err = usb_submit_urb(urb, GFP_ATOMIC); |
398 | if (err) | |
17c23274 | 399 | dev_err(&port->dev, "resubmit read urb failed." |
898eb71c | 400 | "(%d)\n", err); |
033a3fb9 KL |
401 | } |
402 | } | |
403 | return; | |
404 | } | |
405 | ||
033a3fb9 KL |
406 | static void sierra_instat_callback(struct urb *urb) |
407 | { | |
408 | int err; | |
17dd2215 | 409 | int status = urb->status; |
033a3fb9 KL |
410 | 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 | ||
17dd2215 | 417 | if (status == 0) { |
033a3fb9 KL |
418 | 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 | |
17dd2215 | 448 | dbg("%s: error %d", __FUNCTION__, status); |
033a3fb9 KL |
449 | |
450 | /* Resubmit urb so we continue receiving IRQ data */ | |
17dd2215 | 451 | if (status != -ESHUTDOWN) { |
033a3fb9 KL |
452 | 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 | ||
460 | static int sierra_write_room(struct usb_serial_port *port) | |
461 | { | |
17c23274 GKH |
462 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
463 | unsigned long flags; | |
033a3fb9 | 464 | |
17c23274 | 465 | dbg("%s - port %d", __FUNCTION__, port->number); |
033a3fb9 | 466 | |
17c23274 GKH |
467 | /* 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; | |
033a3fb9 | 474 | } |
17c23274 | 475 | spin_unlock_irqrestore(&portdata->lock, flags); |
033a3fb9 | 476 | |
17c23274 | 477 | return 2048; |
033a3fb9 KL |
478 | } |
479 | ||
480 | static int sierra_chars_in_buffer(struct usb_serial_port *port) | |
481 | { | |
17c23274 GKH |
482 | dbg("%s - port %d", __FUNCTION__, port->number); |
483 | ||
484 | /* | |
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; | |
033a3fb9 KL |
491 | } |
492 | ||
493 | static 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; | |
9e85c5f6 | 497 | int i; |
033a3fb9 | 498 | struct urb *urb; |
e43062dd | 499 | int result; |
033a3fb9 KL |
500 | |
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]; | |
9e85c5f6 | 512 | if (!urb) |
033a3fb9 KL |
513 | 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 | ||
9e85c5f6 GKH |
526 | result = usb_submit_urb(urb, GFP_KERNEL); |
527 | if (result) { | |
898eb71c | 528 | dev_err(&port->dev, "submit urb %d failed (%d) %d\n", |
9e85c5f6 | 529 | i, result, urb->transfer_buffer_length); |
033a3fb9 KL |
530 | } |
531 | } | |
532 | ||
033a3fb9 KL |
533 | port->tty->low_latency = 1; |
534 | ||
535 | sierra_send_setup(port); | |
536 | ||
9e85c5f6 GKH |
537 | /* 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) | |
898eb71c | 541 | dev_err(&port->dev, "submit irq_in urb failed %d\n", |
9e85c5f6 GKH |
542 | result); |
543 | } | |
544 | return 0; | |
033a3fb9 KL |
545 | } |
546 | ||
033a3fb9 KL |
547 | static 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++) | |
9e85c5f6 | 564 | usb_kill_urb(portdata->in_urbs[i]); |
033a3fb9 KL |
565 | } |
566 | ||
9e85c5f6 | 567 | usb_kill_urb(port->interrupt_in_urb); |
033a3fb9 | 568 | |
9e85c5f6 | 569 | port->tty = NULL; |
033a3fb9 KL |
570 | } |
571 | ||
033a3fb9 KL |
572 | static int sierra_startup(struct usb_serial *serial) |
573 | { | |
033a3fb9 KL |
574 | struct usb_serial_port *port; |
575 | struct sierra_port_private *portdata; | |
9e85c5f6 GKH |
576 | struct urb *urb; |
577 | int i; | |
578 | int j; | |
033a3fb9 KL |
579 | |
580 | dbg("%s", __FUNCTION__); | |
581 | ||
112225b1 KL |
582 | /*Set Device mode to D0 */ |
583 | sierra_set_power_state(serial->dev, 0x0000); | |
584 | ||
033a3fb9 KL |
585 | /* 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); | |
17c23274 | 592 | return -ENOMEM; |
033a3fb9 | 593 | } |
17c23274 | 594 | spin_lock_init(&portdata->lock); |
033a3fb9 KL |
595 | |
596 | usb_set_serial_port_data(port, portdata); | |
597 | ||
9e85c5f6 GKH |
598 | /* 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 | } | |
033a3fb9 KL |
614 | } |
615 | ||
17c23274 | 616 | return 0; |
033a3fb9 KL |
617 | } |
618 | ||
619 | static 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 | ||
033a3fb9 KL |
627 | for (i = 0; i < serial->num_ports; ++i) { |
628 | port = serial->port[i]; | |
f094e4f3 GKH |
629 | if (!port) |
630 | continue; | |
033a3fb9 | 631 | portdata = usb_get_serial_port_data(port); |
f094e4f3 GKH |
632 | if (!portdata) |
633 | continue; | |
033a3fb9 KL |
634 | |
635 | for (j = 0; j < N_IN_URB; j++) { | |
9e85c5f6 GKH |
636 | usb_kill_urb(portdata->in_urbs[j]); |
637 | usb_free_urb(portdata->in_urbs[j]); | |
638 | portdata->in_urbs[j] = NULL; | |
033a3fb9 | 639 | } |
9e85c5f6 GKH |
640 | kfree(portdata); |
641 | usb_set_serial_port_data(port, NULL); | |
033a3fb9 KL |
642 | } |
643 | } | |
644 | ||
964ee1de GKH |
645 | static 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, | |
d9b1b787 | 652 | .usb_driver = &sierra_driver, |
964ee1de GKH |
653 | .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 | ||
674 | static 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, | |
d9b1b787 | 681 | .usb_driver = &sierra_driver, |
964ee1de GKH |
682 | .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. */ | |
704 | static 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 | ||
723 | failed_driver_register: | |
724 | usb_serial_deregister(&sierra_3port_device); | |
725 | failed_3port_device_register: | |
726 | usb_serial_deregister(&sierra_1port_device); | |
727 | failed_1port_device_register: | |
728 | return retval; | |
729 | } | |
730 | ||
731 | static 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 | ||
738 | module_init(sierra_init); | |
739 | module_exit(sierra_exit); | |
740 | ||
033a3fb9 KL |
741 | MODULE_AUTHOR(DRIVER_AUTHOR); |
742 | MODULE_DESCRIPTION(DRIVER_DESC); | |
743 | MODULE_VERSION(DRIVER_VERSION); | |
69de51fd | 744 | MODULE_LICENSE("GPL"); |
033a3fb9 KL |
745 | |
746 | #ifdef CONFIG_USB_DEBUG | |
747 | module_param(debug, bool, S_IRUGO | S_IWUSR); | |
748 | MODULE_PARM_DESC(debug, "Debug messages"); | |
749 | #endif | |
750 |