]>
Commit | Line | Data |
---|---|---|
69de51fd | 1 | /* |
033a3fb9 KL |
2 | USB Driver for Sierra Wireless |
3 | ||
f3564de4 | 4 | Copyright (C) 2006, 2007, 2008 Kevin Lloyd <klloyd@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 | ||
f3564de4 KL |
17 | #define DRIVER_VERSION "v.1.2.9c" |
18 | #define DRIVER_AUTHOR "Kevin Lloyd <klloyd@sierrawireless.com>" | |
033a3fb9 | 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 |
112225b1 KL |
34 | #define SWIMS_SET_MODE_Modem 0x0001 |
35 | ||
36 | /* per port private data */ | |
37 | #define N_IN_URB 4 | |
38 | #define N_OUT_URB 4 | |
39 | #define IN_BUFLEN 4096 | |
40 | ||
41 | static int debug; | |
228426ed KL |
42 | static int nmea; |
43 | static int truinstall = 1; | |
112225b1 KL |
44 | |
45 | enum devicetype { | |
46 | DEVICE_3_PORT = 0, | |
47 | DEVICE_1_PORT = 1, | |
48 | DEVICE_INSTALLER = 2, | |
49 | }; | |
50 | ||
82a24e68 | 51 | static int sierra_set_power_state(struct usb_device *udev, __u16 swiState) |
112225b1 KL |
52 | { |
53 | int result; | |
898eb71c | 54 | dev_dbg(&udev->dev, "%s", "SET POWER STATE\n"); |
112225b1 | 55 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
228426ed | 56 | SWIMS_USB_REQUEST_SetPower, /* __u8 request */ |
f3564de4 | 57 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
58 | swiState, /* __u16 value */ |
59 | 0, /* __u16 index */ | |
60 | NULL, /* void *data */ | |
61 | 0, /* __u16 size */ | |
62 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
112225b1 KL |
63 | return result; |
64 | } | |
65 | ||
228426ed | 66 | static int sierra_set_ms_mode(struct usb_device *udev, __u16 eSWocMode) |
112225b1 KL |
67 | { |
68 | int result; | |
898eb71c | 69 | dev_dbg(&udev->dev, "%s", "DEVICE MODE SWITCH\n"); |
112225b1 KL |
70 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
71 | SWIMS_USB_REQUEST_SetMode, /* __u8 request */ | |
f3564de4 | 72 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
73 | eSWocMode, /* __u16 value */ |
74 | 0x0000, /* __u16 index */ | |
112225b1 KL |
75 | NULL, /* void *data */ |
76 | 0, /* __u16 size */ | |
77 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
78 | return result; | |
79 | } | |
80 | ||
228426ed | 81 | static int sierra_vsc_set_nmea(struct usb_device *udev, __u16 enable) |
112225b1 KL |
82 | { |
83 | int result; | |
228426ed KL |
84 | dev_dbg(&udev->dev, "%s", "NMEA Enable sent\n"); |
85 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), | |
86 | SWIMS_USB_REQUEST_SetNmea, /* __u8 request */ | |
f3564de4 | 87 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
88 | enable, /* __u16 value */ |
89 | 0x0000, /* __u16 index */ | |
90 | NULL, /* void *data */ | |
91 | 0, /* __u16 size */ | |
92 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
93 | return result; | |
94 | } | |
95 | ||
96 | static int sierra_calc_num_ports(struct usb_serial *serial) | |
97 | { | |
98 | int result; | |
99 | int *num_ports = usb_get_serial_data(serial); | |
100 | ||
101 | result = *num_ports; | |
102 | ||
103 | if (result) { | |
104 | kfree(num_ports); | |
105 | usb_set_serial_data(serial, NULL); | |
106 | } | |
107 | ||
108 | return result; | |
109 | } | |
110 | ||
7106967e KL |
111 | static int sierra_calc_interface(struct usb_serial *serial) |
112 | { | |
113 | int interface; | |
114 | struct usb_interface *p_interface; | |
115 | struct usb_host_interface *p_host_interface; | |
116 | ||
117 | /* Get the interface structure pointer from the serial struct */ | |
118 | p_interface = serial->interface; | |
119 | ||
120 | /* Get a pointer to the host interface structure */ | |
121 | p_host_interface = p_interface->cur_altsetting; | |
122 | ||
123 | /* read the interface descriptor for this active altsetting | |
124 | * to find out the interface number we are on | |
125 | */ | |
126 | interface = p_host_interface->desc.bInterfaceNumber; | |
127 | ||
128 | return interface; | |
129 | } | |
130 | ||
228426ed KL |
131 | static int sierra_probe(struct usb_serial *serial, |
132 | const struct usb_device_id *id) | |
133 | { | |
134 | int result = 0; | |
112225b1 | 135 | struct usb_device *udev; |
228426ed KL |
136 | int *num_ports; |
137 | u8 ifnum; | |
112225b1 | 138 | |
228426ed KL |
139 | num_ports = kmalloc(sizeof(*num_ports), GFP_KERNEL); |
140 | if (!num_ports) | |
141 | return -ENOMEM; | |
142 | ||
143 | ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber; | |
144 | udev = serial->dev; | |
112225b1 | 145 | |
7106967e KL |
146 | /* Figure out the interface number from the serial structure */ |
147 | ifnum = sierra_calc_interface(serial); | |
148 | ||
149 | /* | |
150 | * If this interface supports more than 1 alternate | |
151 | * select the 2nd one | |
152 | */ | |
153 | if (serial->interface->num_altsetting == 2) { | |
154 | dev_dbg(&udev->dev, | |
155 | "Selecting alt setting for interface %d\n", | |
156 | ifnum); | |
157 | ||
158 | /* We know the alternate setting is 1 for the MC8785 */ | |
159 | usb_set_interface(udev, ifnum, 1); | |
160 | } | |
161 | ||
112225b1 | 162 | /* Check if in installer mode */ |
228426ed KL |
163 | if (truinstall && id->driver_info == DEVICE_INSTALLER) { |
164 | dev_dbg(&udev->dev, "%s", "FOUND TRU-INSTALL DEVICE(SW)\n"); | |
112225b1 | 165 | result = sierra_set_ms_mode(udev, SWIMS_SET_MODE_Modem); |
228426ed KL |
166 | /* Don't bind to the device when in installer mode */ |
167 | kfree(num_ports); | |
112225b1 | 168 | return -EIO; |
228426ed KL |
169 | } else if (id->driver_info == DEVICE_1_PORT) |
170 | *num_ports = 1; | |
171 | else if (ifnum == 0x99) | |
172 | *num_ports = 0; | |
173 | else | |
174 | *num_ports = 3; | |
175 | /* | |
176 | * save off our num_ports info so that we can use it in the | |
177 | * calc_num_ports callback | |
178 | */ | |
179 | usb_set_serial_data(serial, (void *)num_ports); | |
112225b1 | 180 | |
228426ed | 181 | return result; |
112225b1 | 182 | } |
033a3fb9 | 183 | |
69de51fd | 184 | static struct usb_device_id id_table [] = { |
e43062dd | 185 | { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ |
69de51fd | 186 | { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ |
e43062dd | 187 | { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ |
9454c46a | 188 | { USB_DEVICE(0x0f30, 0x1b1d) }, /* Sierra Wireless MC5720 */ |
69de51fd | 189 | { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ |
b9e13ac3 | 190 | { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */ |
69de51fd | 191 | { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ |
e43062dd | 192 | { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ |
9454c46a | 193 | { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */ |
69a90f81 | 194 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0023, 0xFF, 0xFF, 0xFF) }, /* Sierra Wireless C597 */ |
9454c46a | 195 | |
69de51fd | 196 | { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ |
e43062dd | 197 | { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ |
69de51fd | 198 | { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ |
9454c46a | 199 | { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ |
ed0ccdbb | 200 | { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 (Thinkpad internal) */ |
7f170a63 | 201 | { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */ |
8f7f85e9 | 202 | { USB_DEVICE(0x03f0, 0x1e1d) }, /* HP hs2300 a.k.a MC8775 */ |
69de51fd | 203 | { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ |
7106967e | 204 | { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */ |
9454c46a KL |
205 | { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780*/ |
206 | { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781*/ | |
7106967e | 207 | { USB_DEVICE(0x1199, 0x683B), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless MC8785 Composite*/ |
9454c46a KL |
208 | { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ |
209 | { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ | |
210 | { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */ | |
211 | { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */ | |
6835b32c | 212 | { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */ |
62aad3ab | 213 | { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ |
7106967e KL |
214 | { USB_DEVICE(0x1199, 0x6859), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 885 E */ |
215 | { USB_DEVICE(0x1199, 0x685A), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 885 E */ | |
033a3fb9 | 216 | |
6835b32c KL |
217 | { USB_DEVICE(0x1199, 0x6468) }, /* Sierra Wireless MP3G - EVDO */ |
218 | { USB_DEVICE(0x1199, 0x6469) }, /* Sierra Wireless MP3G - UMTS/HSPA */ | |
219 | ||
112225b1 KL |
220 | { USB_DEVICE(0x1199, 0x0112), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 580 */ |
221 | { USB_DEVICE(0x0F3D, 0x0112), .driver_info = DEVICE_1_PORT }, /* Airprime/Sierra PC 5220 */ | |
222 | ||
223 | { USB_DEVICE(0x1199, 0x0FFF), .driver_info = DEVICE_INSTALLER}, | |
033a3fb9 KL |
224 | { } |
225 | }; | |
964ee1de | 226 | MODULE_DEVICE_TABLE(usb, id_table); |
033a3fb9 | 227 | |
69de51fd | 228 | static struct usb_driver sierra_driver = { |
033a3fb9 | 229 | .name = "sierra", |
228426ed | 230 | .probe = usb_serial_probe, |
033a3fb9 KL |
231 | .disconnect = usb_serial_disconnect, |
232 | .id_table = id_table, | |
964ee1de | 233 | .no_dynamic_id = 1, |
033a3fb9 KL |
234 | }; |
235 | ||
033a3fb9 | 236 | struct sierra_port_private { |
17c23274 GKH |
237 | spinlock_t lock; /* lock the structure */ |
238 | int outstanding_urbs; /* number of out urbs in flight */ | |
239 | ||
4f4f9c53 | 240 | /* Input endpoints and buffers for this port */ |
033a3fb9 | 241 | struct urb *in_urbs[N_IN_URB]; |
4f4f9c53 | 242 | char *in_buffer[N_IN_URB]; |
033a3fb9 KL |
243 | |
244 | /* Settings for the port */ | |
245 | int rts_state; /* Handshaking pins (outputs) */ | |
246 | int dtr_state; | |
247 | int cts_state; /* Handshaking pins (inputs) */ | |
248 | int dsr_state; | |
249 | int dcd_state; | |
250 | int ri_state; | |
033a3fb9 KL |
251 | }; |
252 | ||
964ee1de | 253 | static int sierra_send_setup(struct usb_serial_port *port) |
69de51fd | 254 | { |
964ee1de GKH |
255 | struct usb_serial *serial = port->serial; |
256 | struct sierra_port_private *portdata; | |
228426ed | 257 | __u16 interface = 0; |
033a3fb9 | 258 | |
441b62c1 | 259 | dbg("%s", __func__); |
033a3fb9 | 260 | |
964ee1de | 261 | portdata = usb_get_serial_port_data(port); |
033a3fb9 | 262 | |
964ee1de GKH |
263 | if (port->tty) { |
264 | int val = 0; | |
265 | if (portdata->dtr_state) | |
266 | val |= 0x01; | |
267 | if (portdata->rts_state) | |
268 | val |= 0x02; | |
033a3fb9 | 269 | |
228426ed KL |
270 | /* Determine which port is targeted */ |
271 | if (port->bulk_out_endpointAddress == 2) | |
272 | interface = 0; | |
273 | else if (port->bulk_out_endpointAddress == 4) | |
274 | interface = 1; | |
275 | else if (port->bulk_out_endpointAddress == 5) | |
276 | interface = 2; | |
277 | ||
964ee1de GKH |
278 | return usb_control_msg(serial->dev, |
279 | usb_rcvctrlpipe(serial->dev, 0), | |
228426ed KL |
280 | 0x22, 0x21, val, interface, |
281 | NULL, 0, USB_CTRL_SET_TIMEOUT); | |
964ee1de | 282 | } |
69de51fd | 283 | |
964ee1de | 284 | return 0; |
69de51fd KL |
285 | } |
286 | ||
033a3fb9 KL |
287 | static void sierra_rx_throttle(struct usb_serial_port *port) |
288 | { | |
441b62c1 | 289 | dbg("%s", __func__); |
033a3fb9 KL |
290 | } |
291 | ||
292 | static void sierra_rx_unthrottle(struct usb_serial_port *port) | |
293 | { | |
441b62c1 | 294 | dbg("%s", __func__); |
033a3fb9 KL |
295 | } |
296 | ||
297 | static void sierra_break_ctl(struct usb_serial_port *port, int break_state) | |
298 | { | |
299 | /* Unfortunately, I don't know how to send a break */ | |
441b62c1 | 300 | dbg("%s", __func__); |
033a3fb9 KL |
301 | } |
302 | ||
303 | static void sierra_set_termios(struct usb_serial_port *port, | |
606d099c | 304 | struct ktermios *old_termios) |
033a3fb9 | 305 | { |
441b62c1 | 306 | dbg("%s", __func__); |
ed1f12ec | 307 | tty_termios_copy_hw(port->tty->termios, old_termios); |
033a3fb9 KL |
308 | sierra_send_setup(port); |
309 | } | |
310 | ||
311 | static int sierra_tiocmget(struct usb_serial_port *port, struct file *file) | |
312 | { | |
313 | unsigned int value; | |
314 | struct sierra_port_private *portdata; | |
315 | ||
316 | portdata = usb_get_serial_port_data(port); | |
317 | ||
318 | value = ((portdata->rts_state) ? TIOCM_RTS : 0) | | |
319 | ((portdata->dtr_state) ? TIOCM_DTR : 0) | | |
320 | ((portdata->cts_state) ? TIOCM_CTS : 0) | | |
321 | ((portdata->dsr_state) ? TIOCM_DSR : 0) | | |
322 | ((portdata->dcd_state) ? TIOCM_CAR : 0) | | |
323 | ((portdata->ri_state) ? TIOCM_RNG : 0); | |
324 | ||
325 | return value; | |
326 | } | |
327 | ||
328 | static int sierra_tiocmset(struct usb_serial_port *port, struct file *file, | |
329 | unsigned int set, unsigned int clear) | |
330 | { | |
331 | struct sierra_port_private *portdata; | |
332 | ||
333 | portdata = usb_get_serial_port_data(port); | |
334 | ||
335 | if (set & TIOCM_RTS) | |
336 | portdata->rts_state = 1; | |
337 | if (set & TIOCM_DTR) | |
338 | portdata->dtr_state = 1; | |
339 | ||
340 | if (clear & TIOCM_RTS) | |
341 | portdata->rts_state = 0; | |
342 | if (clear & TIOCM_DTR) | |
343 | portdata->dtr_state = 0; | |
344 | return sierra_send_setup(port); | |
345 | } | |
346 | ||
347 | static int sierra_ioctl(struct usb_serial_port *port, struct file *file, | |
348 | unsigned int cmd, unsigned long arg) | |
349 | { | |
350 | return -ENOIOCTLCMD; | |
351 | } | |
352 | ||
17c23274 GKH |
353 | static void sierra_outdat_callback(struct urb *urb) |
354 | { | |
355 | struct usb_serial_port *port = urb->context; | |
356 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
357 | int status = urb->status; | |
358 | unsigned long flags; | |
359 | ||
441b62c1 | 360 | dbg("%s - port %d", __func__, port->number); |
17c23274 GKH |
361 | |
362 | /* free up the transfer buffer, as usb_free_urb() does not do this */ | |
363 | kfree(urb->transfer_buffer); | |
364 | ||
365 | if (status) | |
366 | dbg("%s - nonzero write bulk status received: %d", | |
441b62c1 | 367 | __func__, status); |
17c23274 GKH |
368 | |
369 | spin_lock_irqsave(&portdata->lock, flags); | |
370 | --portdata->outstanding_urbs; | |
371 | spin_unlock_irqrestore(&portdata->lock, flags); | |
372 | ||
373 | usb_serial_port_softint(port); | |
374 | } | |
375 | ||
033a3fb9 KL |
376 | /* Write */ |
377 | static int sierra_write(struct usb_serial_port *port, | |
378 | const unsigned char *buf, int count) | |
379 | { | |
17c23274 GKH |
380 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
381 | struct usb_serial *serial = port->serial; | |
382 | unsigned long flags; | |
383 | unsigned char *buffer; | |
384 | struct urb *urb; | |
385 | int status; | |
033a3fb9 KL |
386 | |
387 | portdata = usb_get_serial_port_data(port); | |
388 | ||
441b62c1 | 389 | dbg("%s: write (%d chars)", __func__, count); |
033a3fb9 | 390 | |
17c23274 GKH |
391 | spin_lock_irqsave(&portdata->lock, flags); |
392 | if (portdata->outstanding_urbs > N_OUT_URB) { | |
393 | spin_unlock_irqrestore(&portdata->lock, flags); | |
441b62c1 | 394 | dbg("%s - write limit hit\n", __func__); |
17c23274 GKH |
395 | return 0; |
396 | } | |
397 | portdata->outstanding_urbs++; | |
398 | spin_unlock_irqrestore(&portdata->lock, flags); | |
399 | ||
400 | buffer = kmalloc(count, GFP_ATOMIC); | |
401 | if (!buffer) { | |
402 | dev_err(&port->dev, "out of memory\n"); | |
403 | count = -ENOMEM; | |
404 | goto error_no_buffer; | |
405 | } | |
033a3fb9 | 406 | |
17c23274 GKH |
407 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
408 | if (!urb) { | |
409 | dev_err(&port->dev, "no more free urbs\n"); | |
410 | count = -ENOMEM; | |
411 | goto error_no_urb; | |
412 | } | |
033a3fb9 | 413 | |
17c23274 | 414 | memcpy(buffer, buf, count); |
033a3fb9 | 415 | |
441b62c1 | 416 | usb_serial_debug_data(debug, &port->dev, __func__, count, buffer); |
17c23274 GKH |
417 | |
418 | usb_fill_bulk_urb(urb, serial->dev, | |
419 | usb_sndbulkpipe(serial->dev, | |
420 | port->bulk_out_endpointAddress), | |
421 | buffer, count, sierra_outdat_callback, port); | |
422 | ||
423 | /* send it down the pipe */ | |
424 | status = usb_submit_urb(urb, GFP_ATOMIC); | |
425 | if (status) { | |
426 | dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " | |
441b62c1 | 427 | "with status = %d\n", __func__, status); |
17c23274 GKH |
428 | count = status; |
429 | goto error; | |
033a3fb9 KL |
430 | } |
431 | ||
17c23274 GKH |
432 | /* we are done with this urb, so let the host driver |
433 | * really free it when it is finished with it */ | |
434 | usb_free_urb(urb); | |
435 | ||
436 | return count; | |
437 | error: | |
438 | usb_free_urb(urb); | |
439 | error_no_urb: | |
440 | kfree(buffer); | |
441 | error_no_buffer: | |
442 | spin_lock_irqsave(&portdata->lock, flags); | |
443 | --portdata->outstanding_urbs; | |
444 | spin_unlock_irqrestore(&portdata->lock, flags); | |
033a3fb9 KL |
445 | return count; |
446 | } | |
447 | ||
448 | static void sierra_indat_callback(struct urb *urb) | |
449 | { | |
450 | int err; | |
451 | int endpoint; | |
452 | struct usb_serial_port *port; | |
453 | struct tty_struct *tty; | |
454 | unsigned char *data = urb->transfer_buffer; | |
17dd2215 | 455 | int status = urb->status; |
033a3fb9 | 456 | |
441b62c1 | 457 | dbg("%s: %p", __func__, urb); |
033a3fb9 KL |
458 | |
459 | endpoint = usb_pipeendpoint(urb->pipe); | |
460 | port = (struct usb_serial_port *) urb->context; | |
461 | ||
17dd2215 | 462 | if (status) { |
033a3fb9 | 463 | dbg("%s: nonzero status: %d on endpoint %02x.", |
441b62c1 | 464 | __func__, status, endpoint); |
033a3fb9 KL |
465 | } else { |
466 | tty = port->tty; | |
467 | if (urb->actual_length) { | |
468 | tty_buffer_request_room(tty, urb->actual_length); | |
469 | tty_insert_flip_string(tty, data, urb->actual_length); | |
470 | tty_flip_buffer_push(tty); | |
471 | } else { | |
441b62c1 | 472 | dbg("%s: empty read urb received", __func__); |
033a3fb9 KL |
473 | } |
474 | ||
475 | /* Resubmit urb so we continue receiving */ | |
17dd2215 | 476 | if (port->open_count && status != -ESHUTDOWN) { |
033a3fb9 KL |
477 | err = usb_submit_urb(urb, GFP_ATOMIC); |
478 | if (err) | |
17c23274 | 479 | dev_err(&port->dev, "resubmit read urb failed." |
898eb71c | 480 | "(%d)\n", err); |
033a3fb9 KL |
481 | } |
482 | } | |
483 | return; | |
484 | } | |
485 | ||
033a3fb9 KL |
486 | static void sierra_instat_callback(struct urb *urb) |
487 | { | |
488 | int err; | |
17dd2215 | 489 | int status = urb->status; |
033a3fb9 KL |
490 | struct usb_serial_port *port = (struct usb_serial_port *) urb->context; |
491 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
492 | struct usb_serial *serial = port->serial; | |
493 | ||
441b62c1 HH |
494 | dbg("%s", __func__); |
495 | dbg("%s: urb %p port %p has data %p", __func__, urb, port, portdata); | |
033a3fb9 | 496 | |
17dd2215 | 497 | if (status == 0) { |
033a3fb9 KL |
498 | struct usb_ctrlrequest *req_pkt = |
499 | (struct usb_ctrlrequest *)urb->transfer_buffer; | |
500 | ||
501 | if (!req_pkt) { | |
441b62c1 | 502 | dbg("%s: NULL req_pkt\n", __func__); |
033a3fb9 KL |
503 | return; |
504 | } | |
505 | if ((req_pkt->bRequestType == 0xA1) && | |
506 | (req_pkt->bRequest == 0x20)) { | |
507 | int old_dcd_state; | |
508 | unsigned char signals = *((unsigned char *) | |
509 | urb->transfer_buffer + | |
510 | sizeof(struct usb_ctrlrequest)); | |
511 | ||
441b62c1 | 512 | dbg("%s: signal x%x", __func__, signals); |
033a3fb9 KL |
513 | |
514 | old_dcd_state = portdata->dcd_state; | |
515 | portdata->cts_state = 1; | |
516 | portdata->dcd_state = ((signals & 0x01) ? 1 : 0); | |
517 | portdata->dsr_state = ((signals & 0x02) ? 1 : 0); | |
518 | portdata->ri_state = ((signals & 0x08) ? 1 : 0); | |
519 | ||
520 | if (port->tty && !C_CLOCAL(port->tty) && | |
521 | old_dcd_state && !portdata->dcd_state) | |
522 | tty_hangup(port->tty); | |
523 | } else { | |
441b62c1 | 524 | dbg("%s: type %x req %x", __func__, |
f3564de4 | 525 | req_pkt->bRequestType, req_pkt->bRequest); |
033a3fb9 KL |
526 | } |
527 | } else | |
441b62c1 | 528 | dbg("%s: error %d", __func__, status); |
033a3fb9 KL |
529 | |
530 | /* Resubmit urb so we continue receiving IRQ data */ | |
17dd2215 | 531 | if (status != -ESHUTDOWN) { |
033a3fb9 KL |
532 | urb->dev = serial->dev; |
533 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
534 | if (err) | |
535 | dbg("%s: resubmit intr urb failed. (%d)", | |
441b62c1 | 536 | __func__, err); |
033a3fb9 KL |
537 | } |
538 | } | |
539 | ||
540 | static int sierra_write_room(struct usb_serial_port *port) | |
541 | { | |
17c23274 GKH |
542 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
543 | unsigned long flags; | |
033a3fb9 | 544 | |
441b62c1 | 545 | dbg("%s - port %d", __func__, port->number); |
033a3fb9 | 546 | |
17c23274 GKH |
547 | /* try to give a good number back based on if we have any free urbs at |
548 | * this point in time */ | |
549 | spin_lock_irqsave(&portdata->lock, flags); | |
550 | if (portdata->outstanding_urbs > N_OUT_URB * 2 / 3) { | |
551 | spin_unlock_irqrestore(&portdata->lock, flags); | |
441b62c1 | 552 | dbg("%s - write limit hit\n", __func__); |
17c23274 | 553 | return 0; |
033a3fb9 | 554 | } |
17c23274 | 555 | spin_unlock_irqrestore(&portdata->lock, flags); |
033a3fb9 | 556 | |
17c23274 | 557 | return 2048; |
033a3fb9 KL |
558 | } |
559 | ||
560 | static int sierra_chars_in_buffer(struct usb_serial_port *port) | |
561 | { | |
441b62c1 | 562 | dbg("%s - port %d", __func__, port->number); |
17c23274 GKH |
563 | |
564 | /* | |
565 | * We can't really account for how much data we | |
566 | * have sent out, but hasn't made it through to the | |
567 | * device as we can't see the backend here, so just | |
568 | * tell the tty layer that everything is flushed. | |
a5b6f60c AC |
569 | * |
570 | * FIXME: should walk the outstanding urbs info | |
17c23274 GKH |
571 | */ |
572 | return 0; | |
033a3fb9 KL |
573 | } |
574 | ||
575 | static int sierra_open(struct usb_serial_port *port, struct file *filp) | |
576 | { | |
577 | struct sierra_port_private *portdata; | |
578 | struct usb_serial *serial = port->serial; | |
9e85c5f6 | 579 | int i; |
033a3fb9 | 580 | struct urb *urb; |
e43062dd | 581 | int result; |
033a3fb9 KL |
582 | |
583 | portdata = usb_get_serial_port_data(port); | |
584 | ||
441b62c1 | 585 | dbg("%s", __func__); |
033a3fb9 KL |
586 | |
587 | /* Set some sane defaults */ | |
588 | portdata->rts_state = 1; | |
589 | portdata->dtr_state = 1; | |
590 | ||
591 | /* Reset low level data toggle and start reading from endpoints */ | |
592 | for (i = 0; i < N_IN_URB; i++) { | |
593 | urb = portdata->in_urbs[i]; | |
9e85c5f6 | 594 | if (!urb) |
033a3fb9 KL |
595 | continue; |
596 | if (urb->dev != serial->dev) { | |
441b62c1 | 597 | dbg("%s: dev %p != %p", __func__, |
033a3fb9 KL |
598 | urb->dev, serial->dev); |
599 | continue; | |
600 | } | |
601 | ||
602 | /* | |
603 | * make sure endpoint data toggle is synchronized with the | |
604 | * device | |
605 | */ | |
606 | usb_clear_halt(urb->dev, urb->pipe); | |
607 | ||
9e85c5f6 GKH |
608 | result = usb_submit_urb(urb, GFP_KERNEL); |
609 | if (result) { | |
898eb71c | 610 | dev_err(&port->dev, "submit urb %d failed (%d) %d\n", |
9e85c5f6 | 611 | i, result, urb->transfer_buffer_length); |
033a3fb9 KL |
612 | } |
613 | } | |
614 | ||
033a3fb9 KL |
615 | port->tty->low_latency = 1; |
616 | ||
617 | sierra_send_setup(port); | |
618 | ||
9e85c5f6 GKH |
619 | /* start up the interrupt endpoint if we have one */ |
620 | if (port->interrupt_in_urb) { | |
621 | result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); | |
622 | if (result) | |
898eb71c | 623 | dev_err(&port->dev, "submit irq_in urb failed %d\n", |
9e85c5f6 GKH |
624 | result); |
625 | } | |
626 | return 0; | |
033a3fb9 KL |
627 | } |
628 | ||
033a3fb9 KL |
629 | static void sierra_close(struct usb_serial_port *port, struct file *filp) |
630 | { | |
631 | int i; | |
632 | struct usb_serial *serial = port->serial; | |
633 | struct sierra_port_private *portdata; | |
634 | ||
441b62c1 | 635 | dbg("%s", __func__); |
033a3fb9 KL |
636 | portdata = usb_get_serial_port_data(port); |
637 | ||
638 | portdata->rts_state = 0; | |
639 | portdata->dtr_state = 0; | |
640 | ||
641 | if (serial->dev) { | |
e33fe4d8 ON |
642 | mutex_lock(&serial->disc_mutex); |
643 | if (!serial->disconnected) | |
644 | sierra_send_setup(port); | |
645 | mutex_unlock(&serial->disc_mutex); | |
033a3fb9 KL |
646 | |
647 | /* Stop reading/writing urbs */ | |
648 | for (i = 0; i < N_IN_URB; i++) | |
9e85c5f6 | 649 | usb_kill_urb(portdata->in_urbs[i]); |
033a3fb9 KL |
650 | } |
651 | ||
9e85c5f6 | 652 | usb_kill_urb(port->interrupt_in_urb); |
033a3fb9 | 653 | |
9e85c5f6 | 654 | port->tty = NULL; |
033a3fb9 KL |
655 | } |
656 | ||
033a3fb9 KL |
657 | static int sierra_startup(struct usb_serial *serial) |
658 | { | |
033a3fb9 KL |
659 | struct usb_serial_port *port; |
660 | struct sierra_port_private *portdata; | |
9e85c5f6 GKH |
661 | struct urb *urb; |
662 | int i; | |
663 | int j; | |
033a3fb9 | 664 | |
441b62c1 | 665 | dbg("%s", __func__); |
033a3fb9 | 666 | |
228426ed | 667 | /* Set Device mode to D0 */ |
112225b1 KL |
668 | sierra_set_power_state(serial->dev, 0x0000); |
669 | ||
228426ed KL |
670 | /* Check NMEA and set */ |
671 | if (nmea) | |
672 | sierra_vsc_set_nmea(serial->dev, 1); | |
673 | ||
033a3fb9 KL |
674 | /* Now setup per port private data */ |
675 | for (i = 0; i < serial->num_ports; i++) { | |
676 | port = serial->port[i]; | |
677 | portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); | |
678 | if (!portdata) { | |
679 | dbg("%s: kmalloc for sierra_port_private (%d) failed!.", | |
441b62c1 | 680 | __func__, i); |
17c23274 | 681 | return -ENOMEM; |
033a3fb9 | 682 | } |
17c23274 | 683 | spin_lock_init(&portdata->lock); |
4f4f9c53 ON |
684 | for (j = 0; j < N_IN_URB; j++) { |
685 | portdata->in_buffer[j] = kmalloc(IN_BUFLEN, GFP_KERNEL); | |
686 | if (!portdata->in_buffer[j]) { | |
687 | for (--j; j >= 0; j--) | |
688 | kfree(portdata->in_buffer[j]); | |
689 | kfree(portdata); | |
690 | return -ENOMEM; | |
691 | } | |
692 | } | |
033a3fb9 KL |
693 | |
694 | usb_set_serial_port_data(port, portdata); | |
695 | ||
9e85c5f6 GKH |
696 | /* initialize the in urbs */ |
697 | for (j = 0; j < N_IN_URB; ++j) { | |
698 | urb = usb_alloc_urb(0, GFP_KERNEL); | |
699 | if (urb == NULL) { | |
700 | dbg("%s: alloc for in port failed.", | |
441b62c1 | 701 | __func__); |
9e85c5f6 GKH |
702 | continue; |
703 | } | |
704 | /* Fill URB using supplied data. */ | |
705 | usb_fill_bulk_urb(urb, serial->dev, | |
706 | usb_rcvbulkpipe(serial->dev, | |
707 | port->bulk_in_endpointAddress), | |
708 | portdata->in_buffer[j], IN_BUFLEN, | |
709 | sierra_indat_callback, port); | |
710 | portdata->in_urbs[j] = urb; | |
711 | } | |
033a3fb9 KL |
712 | } |
713 | ||
17c23274 | 714 | return 0; |
033a3fb9 KL |
715 | } |
716 | ||
717 | static void sierra_shutdown(struct usb_serial *serial) | |
718 | { | |
719 | int i, j; | |
720 | struct usb_serial_port *port; | |
721 | struct sierra_port_private *portdata; | |
722 | ||
441b62c1 | 723 | dbg("%s", __func__); |
033a3fb9 | 724 | |
033a3fb9 KL |
725 | for (i = 0; i < serial->num_ports; ++i) { |
726 | port = serial->port[i]; | |
f094e4f3 GKH |
727 | if (!port) |
728 | continue; | |
033a3fb9 | 729 | portdata = usb_get_serial_port_data(port); |
f094e4f3 GKH |
730 | if (!portdata) |
731 | continue; | |
033a3fb9 KL |
732 | |
733 | for (j = 0; j < N_IN_URB; j++) { | |
9e85c5f6 GKH |
734 | usb_kill_urb(portdata->in_urbs[j]); |
735 | usb_free_urb(portdata->in_urbs[j]); | |
4f4f9c53 | 736 | kfree(portdata->in_buffer[j]); |
033a3fb9 | 737 | } |
9e85c5f6 GKH |
738 | kfree(portdata); |
739 | usb_set_serial_port_data(port, NULL); | |
033a3fb9 KL |
740 | } |
741 | } | |
742 | ||
228426ed | 743 | static struct usb_serial_driver sierra_device = { |
964ee1de GKH |
744 | .driver = { |
745 | .owner = THIS_MODULE, | |
746 | .name = "sierra1", | |
747 | }, | |
228426ed KL |
748 | .description = "Sierra USB modem", |
749 | .id_table = id_table, | |
d9b1b787 | 750 | .usb_driver = &sierra_driver, |
228426ed KL |
751 | .calc_num_ports = sierra_calc_num_ports, |
752 | .probe = sierra_probe, | |
964ee1de GKH |
753 | .open = sierra_open, |
754 | .close = sierra_close, | |
755 | .write = sierra_write, | |
756 | .write_room = sierra_write_room, | |
757 | .chars_in_buffer = sierra_chars_in_buffer, | |
758 | .throttle = sierra_rx_throttle, | |
759 | .unthrottle = sierra_rx_unthrottle, | |
760 | .ioctl = sierra_ioctl, | |
761 | .set_termios = sierra_set_termios, | |
762 | .break_ctl = sierra_break_ctl, | |
763 | .tiocmget = sierra_tiocmget, | |
764 | .tiocmset = sierra_tiocmset, | |
765 | .attach = sierra_startup, | |
766 | .shutdown = sierra_shutdown, | |
767 | .read_int_callback = sierra_instat_callback, | |
768 | }; | |
769 | ||
770 | /* Functions used by new usb-serial code. */ | |
771 | static int __init sierra_init(void) | |
772 | { | |
773 | int retval; | |
228426ed | 774 | retval = usb_serial_register(&sierra_device); |
964ee1de | 775 | if (retval) |
228426ed | 776 | goto failed_device_register; |
964ee1de GKH |
777 | |
778 | ||
779 | retval = usb_register(&sierra_driver); | |
780 | if (retval) | |
781 | goto failed_driver_register; | |
782 | ||
783 | info(DRIVER_DESC ": " DRIVER_VERSION); | |
784 | ||
785 | return 0; | |
786 | ||
787 | failed_driver_register: | |
228426ed KL |
788 | usb_serial_deregister(&sierra_device); |
789 | failed_device_register: | |
964ee1de GKH |
790 | return retval; |
791 | } | |
792 | ||
793 | static void __exit sierra_exit(void) | |
794 | { | |
795 | usb_deregister (&sierra_driver); | |
228426ed | 796 | usb_serial_deregister(&sierra_device); |
964ee1de GKH |
797 | } |
798 | ||
799 | module_init(sierra_init); | |
800 | module_exit(sierra_exit); | |
801 | ||
033a3fb9 KL |
802 | MODULE_AUTHOR(DRIVER_AUTHOR); |
803 | MODULE_DESCRIPTION(DRIVER_DESC); | |
804 | MODULE_VERSION(DRIVER_VERSION); | |
69de51fd | 805 | MODULE_LICENSE("GPL"); |
033a3fb9 | 806 | |
228426ed KL |
807 | module_param(truinstall, bool, 0); |
808 | MODULE_PARM_DESC(truinstall, "TRU-Install support"); | |
809 | ||
810 | module_param(nmea, bool, 0); | |
811 | MODULE_PARM_DESC(nmea, "NMEA streaming"); | |
812 | ||
033a3fb9 KL |
813 | #ifdef CONFIG_USB_DEBUG |
814 | module_param(debug, bool, S_IRUGO | S_IWUSR); | |
815 | MODULE_PARM_DESC(debug, "Debug messages"); | |
816 | #endif | |
817 |