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 | ||
73b2c205 | 17 | #define DRIVER_VERSION "v.1.3.2" |
f3564de4 | 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 KL |
33 | |
34 | /* per port private data */ | |
35 | #define N_IN_URB 4 | |
36 | #define N_OUT_URB 4 | |
37 | #define IN_BUFLEN 4096 | |
38 | ||
39 | static int debug; | |
228426ed | 40 | static int nmea; |
112225b1 | 41 | |
82a24e68 | 42 | static int sierra_set_power_state(struct usb_device *udev, __u16 swiState) |
112225b1 KL |
43 | { |
44 | int result; | |
4e0fee82 | 45 | dev_dbg(&udev->dev, "%s", __func__); |
112225b1 | 46 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
228426ed | 47 | SWIMS_USB_REQUEST_SetPower, /* __u8 request */ |
f3564de4 | 48 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
49 | swiState, /* __u16 value */ |
50 | 0, /* __u16 index */ | |
51 | NULL, /* void *data */ | |
52 | 0, /* __u16 size */ | |
53 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
112225b1 KL |
54 | return result; |
55 | } | |
56 | ||
228426ed | 57 | static int sierra_vsc_set_nmea(struct usb_device *udev, __u16 enable) |
112225b1 KL |
58 | { |
59 | int result; | |
4e0fee82 | 60 | dev_dbg(&udev->dev, "%s", __func__); |
228426ed KL |
61 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
62 | SWIMS_USB_REQUEST_SetNmea, /* __u8 request */ | |
f3564de4 | 63 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
64 | enable, /* __u16 value */ |
65 | 0x0000, /* __u16 index */ | |
66 | NULL, /* void *data */ | |
67 | 0, /* __u16 size */ | |
68 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
69 | return result; | |
70 | } | |
71 | ||
72 | static int sierra_calc_num_ports(struct usb_serial *serial) | |
73 | { | |
74 | int result; | |
75 | int *num_ports = usb_get_serial_data(serial); | |
4e0fee82 | 76 | dev_dbg(&serial->dev->dev, "%s", __func__); |
228426ed KL |
77 | |
78 | result = *num_ports; | |
79 | ||
80 | if (result) { | |
81 | kfree(num_ports); | |
82 | usb_set_serial_data(serial, NULL); | |
83 | } | |
84 | ||
85 | return result; | |
86 | } | |
87 | ||
7106967e KL |
88 | static int sierra_calc_interface(struct usb_serial *serial) |
89 | { | |
4e0fee82 KL |
90 | int interface; |
91 | struct usb_interface *p_interface; | |
92 | struct usb_host_interface *p_host_interface; | |
93 | dev_dbg(&serial->dev->dev, "%s", __func__); | |
7106967e | 94 | |
4e0fee82 KL |
95 | /* Get the interface structure pointer from the serial struct */ |
96 | p_interface = serial->interface; | |
7106967e | 97 | |
4e0fee82 KL |
98 | /* Get a pointer to the host interface structure */ |
99 | p_host_interface = p_interface->cur_altsetting; | |
7106967e | 100 | |
4e0fee82 KL |
101 | /* read the interface descriptor for this active altsetting |
102 | * to find out the interface number we are on | |
103 | */ | |
104 | interface = p_host_interface->desc.bInterfaceNumber; | |
7106967e | 105 | |
4e0fee82 | 106 | return interface; |
7106967e KL |
107 | } |
108 | ||
228426ed KL |
109 | static int sierra_probe(struct usb_serial *serial, |
110 | const struct usb_device_id *id) | |
111 | { | |
112 | int result = 0; | |
112225b1 | 113 | struct usb_device *udev; |
228426ed KL |
114 | int *num_ports; |
115 | u8 ifnum; | |
e3173b22 KL |
116 | u8 numendpoints; |
117 | ||
4e0fee82 | 118 | dev_dbg(&serial->dev->dev, "%s", __func__); |
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; | |
e3173b22 | 125 | numendpoints = serial->interface->cur_altsetting->desc.bNumEndpoints; |
228426ed | 126 | udev = serial->dev; |
112225b1 | 127 | |
e3173b22 KL |
128 | /* Figure out the interface number from the serial structure */ |
129 | ifnum = sierra_calc_interface(serial); | |
7106967e | 130 | |
e3173b22 KL |
131 | /* |
132 | * If this interface supports more than 1 alternate | |
133 | * select the 2nd one | |
134 | */ | |
135 | if (serial->interface->num_altsetting == 2) { | |
136 | dev_dbg(&udev->dev, "Selecting alt setting for interface %d\n", | |
137 | ifnum); | |
138 | /* We know the alternate setting is 1 for the MC8785 */ | |
139 | usb_set_interface(udev, ifnum, 1); | |
140 | } | |
7106967e | 141 | |
e3173b22 | 142 | /* Dummy interface present on some SKUs should be ignored */ |
0585e4df | 143 | if (ifnum == 0x99) |
228426ed | 144 | *num_ports = 0; |
e3173b22 KL |
145 | else if (numendpoints <= 3) |
146 | *num_ports = 1; | |
228426ed | 147 | else |
e3173b22 KL |
148 | *num_ports = (numendpoints-1)/2; |
149 | ||
228426ed KL |
150 | /* |
151 | * save off our num_ports info so that we can use it in the | |
152 | * calc_num_ports callback | |
153 | */ | |
154 | usb_set_serial_data(serial, (void *)num_ports); | |
112225b1 | 155 | |
228426ed | 156 | return result; |
112225b1 | 157 | } |
033a3fb9 | 158 | |
69de51fd | 159 | static struct usb_device_id id_table [] = { |
e43062dd | 160 | { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ |
69de51fd | 161 | { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ |
e43062dd | 162 | { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ |
f8834f1f | 163 | { USB_DEVICE(0x03f0, 0x1b1d) }, /* HP ev2200 a.k.a MC5720 */ |
69de51fd | 164 | { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ |
4e0fee82 | 165 | { USB_DEVICE(0x1199, 0x0024) }, /* Sierra Wireless MC5727 */ |
b9e13ac3 | 166 | { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */ |
69de51fd | 167 | { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ |
e43062dd | 168 | { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ |
9454c46a | 169 | { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */ |
4e0fee82 KL |
170 | /* Sierra Wireless C597 */ |
171 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0023, 0xFF, 0xFF, 0xFF) }, | |
e3173b22 KL |
172 | /* Sierra Wireless Device */ |
173 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0025, 0xFF, 0xFF, 0xFF) }, | |
174 | { USB_DEVICE(0x1199, 0x0026) }, /* Sierra Wireless Device */ | |
73b2c205 KL |
175 | { USB_DEVICE(0x1199, 0x0027) }, /* Sierra Wireless Device */ |
176 | { USB_DEVICE(0x1199, 0x0028) }, /* Sierra Wireless Device */ | |
9454c46a | 177 | |
69de51fd | 178 | { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ |
e43062dd | 179 | { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ |
69de51fd | 180 | { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ |
9454c46a | 181 | { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ |
4e0fee82 | 182 | { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 (Lenovo) */ |
7f170a63 | 183 | { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */ |
8f7f85e9 | 184 | { USB_DEVICE(0x03f0, 0x1e1d) }, /* HP hs2300 a.k.a MC8775 */ |
69de51fd | 185 | { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ |
7106967e | 186 | { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */ |
4e0fee82 KL |
187 | { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780 */ |
188 | { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781 */ | |
e3173b22 KL |
189 | { USB_DEVICE(0x1199, 0x683B) }, /* Sierra Wireless MC8785 Composite */ |
190 | { USB_DEVICE(0x1199, 0x683C) }, /* Sierra Wireless MC8790 */ | |
191 | { USB_DEVICE(0x1199, 0x683D) }, /* Sierra Wireless MC8790 */ | |
192 | { USB_DEVICE(0x1199, 0x683E) }, /* Sierra Wireless MC8790 */ | |
9454c46a KL |
193 | { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ |
194 | { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ | |
195 | { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */ | |
196 | { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */ | |
6835b32c | 197 | { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */ |
62aad3ab | 198 | { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ |
e3173b22 KL |
199 | { USB_DEVICE(0x1199, 0x6859) }, /* Sierra Wireless AirCard 885 E */ |
200 | { USB_DEVICE(0x1199, 0x685A) }, /* Sierra Wireless AirCard 885 E */ | |
201 | /* Sierra Wireless C885 */ | |
202 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6880, 0xFF, 0xFF, 0xFF)}, | |
203 | /* Sierra Wireless Device */ | |
204 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6890, 0xFF, 0xFF, 0xFF)}, | |
205 | /* Sierra Wireless Device */ | |
73b2c205 KL |
206 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6891, 0xFF, 0xFF, 0xFF)}, |
207 | /* Sierra Wireless Device */ | |
e3173b22 KL |
208 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6892, 0xFF, 0xFF, 0xFF)}, |
209 | ||
210 | { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */ | |
211 | { USB_DEVICE(0x0F3D, 0x0112) }, /* Airprime/Sierra PC 5220 */ | |
112225b1 | 212 | |
033a3fb9 KL |
213 | { } |
214 | }; | |
964ee1de | 215 | MODULE_DEVICE_TABLE(usb, id_table); |
033a3fb9 | 216 | |
69de51fd | 217 | static struct usb_driver sierra_driver = { |
033a3fb9 | 218 | .name = "sierra", |
228426ed | 219 | .probe = usb_serial_probe, |
033a3fb9 KL |
220 | .disconnect = usb_serial_disconnect, |
221 | .id_table = id_table, | |
964ee1de | 222 | .no_dynamic_id = 1, |
033a3fb9 KL |
223 | }; |
224 | ||
033a3fb9 | 225 | struct sierra_port_private { |
17c23274 GKH |
226 | spinlock_t lock; /* lock the structure */ |
227 | int outstanding_urbs; /* number of out urbs in flight */ | |
228 | ||
4f4f9c53 | 229 | /* Input endpoints and buffers for this port */ |
033a3fb9 | 230 | struct urb *in_urbs[N_IN_URB]; |
4f4f9c53 | 231 | char *in_buffer[N_IN_URB]; |
033a3fb9 KL |
232 | |
233 | /* Settings for the port */ | |
234 | int rts_state; /* Handshaking pins (outputs) */ | |
235 | int dtr_state; | |
236 | int cts_state; /* Handshaking pins (inputs) */ | |
237 | int dsr_state; | |
238 | int dcd_state; | |
239 | int ri_state; | |
033a3fb9 KL |
240 | }; |
241 | ||
95da310e AC |
242 | static int sierra_send_setup(struct tty_struct *tty, |
243 | struct usb_serial_port *port) | |
69de51fd | 244 | { |
964ee1de GKH |
245 | struct usb_serial *serial = port->serial; |
246 | struct sierra_port_private *portdata; | |
228426ed | 247 | __u16 interface = 0; |
033a3fb9 | 248 | |
441b62c1 | 249 | dbg("%s", __func__); |
033a3fb9 | 250 | |
964ee1de | 251 | portdata = usb_get_serial_port_data(port); |
033a3fb9 | 252 | |
95da310e | 253 | if (tty) { |
964ee1de GKH |
254 | int val = 0; |
255 | if (portdata->dtr_state) | |
256 | val |= 0x01; | |
257 | if (portdata->rts_state) | |
258 | val |= 0x02; | |
033a3fb9 | 259 | |
e3173b22 KL |
260 | /* If composite device then properly report interface */ |
261 | if (serial->num_ports == 1) | |
262 | interface = sierra_calc_interface(serial); | |
263 | ||
264 | /* Otherwise the need to do non-composite mapping */ | |
265 | else { | |
266 | if (port->bulk_out_endpointAddress == 2) | |
267 | interface = 0; | |
268 | else if (port->bulk_out_endpointAddress == 4) | |
269 | interface = 1; | |
270 | else if (port->bulk_out_endpointAddress == 5) | |
271 | interface = 2; | |
272 | } | |
228426ed | 273 | |
964ee1de GKH |
274 | return usb_control_msg(serial->dev, |
275 | usb_rcvctrlpipe(serial->dev, 0), | |
228426ed KL |
276 | 0x22, 0x21, val, interface, |
277 | NULL, 0, USB_CTRL_SET_TIMEOUT); | |
964ee1de | 278 | } |
69de51fd | 279 | |
964ee1de | 280 | return 0; |
69de51fd KL |
281 | } |
282 | ||
95da310e AC |
283 | static void sierra_set_termios(struct tty_struct *tty, |
284 | struct usb_serial_port *port, struct ktermios *old_termios) | |
033a3fb9 | 285 | { |
441b62c1 | 286 | dbg("%s", __func__); |
95da310e AC |
287 | tty_termios_copy_hw(tty->termios, old_termios); |
288 | sierra_send_setup(tty, port); | |
033a3fb9 KL |
289 | } |
290 | ||
95da310e | 291 | static int sierra_tiocmget(struct tty_struct *tty, struct file *file) |
033a3fb9 | 292 | { |
95da310e | 293 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
294 | unsigned int value; |
295 | struct sierra_port_private *portdata; | |
296 | ||
297 | portdata = usb_get_serial_port_data(port); | |
298 | ||
299 | value = ((portdata->rts_state) ? TIOCM_RTS : 0) | | |
300 | ((portdata->dtr_state) ? TIOCM_DTR : 0) | | |
301 | ((portdata->cts_state) ? TIOCM_CTS : 0) | | |
302 | ((portdata->dsr_state) ? TIOCM_DSR : 0) | | |
303 | ((portdata->dcd_state) ? TIOCM_CAR : 0) | | |
304 | ((portdata->ri_state) ? TIOCM_RNG : 0); | |
305 | ||
306 | return value; | |
307 | } | |
308 | ||
95da310e | 309 | static int sierra_tiocmset(struct tty_struct *tty, struct file *file, |
033a3fb9 KL |
310 | unsigned int set, unsigned int clear) |
311 | { | |
95da310e | 312 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
313 | struct sierra_port_private *portdata; |
314 | ||
315 | portdata = usb_get_serial_port_data(port); | |
316 | ||
317 | if (set & TIOCM_RTS) | |
318 | portdata->rts_state = 1; | |
319 | if (set & TIOCM_DTR) | |
320 | portdata->dtr_state = 1; | |
321 | ||
322 | if (clear & TIOCM_RTS) | |
323 | portdata->rts_state = 0; | |
324 | if (clear & TIOCM_DTR) | |
325 | portdata->dtr_state = 0; | |
95da310e | 326 | return sierra_send_setup(tty, port); |
033a3fb9 KL |
327 | } |
328 | ||
17c23274 GKH |
329 | static void sierra_outdat_callback(struct urb *urb) |
330 | { | |
331 | struct usb_serial_port *port = urb->context; | |
332 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
333 | int status = urb->status; | |
334 | unsigned long flags; | |
335 | ||
441b62c1 | 336 | dbg("%s - port %d", __func__, port->number); |
17c23274 GKH |
337 | |
338 | /* free up the transfer buffer, as usb_free_urb() does not do this */ | |
339 | kfree(urb->transfer_buffer); | |
340 | ||
341 | if (status) | |
342 | dbg("%s - nonzero write bulk status received: %d", | |
441b62c1 | 343 | __func__, status); |
17c23274 GKH |
344 | |
345 | spin_lock_irqsave(&portdata->lock, flags); | |
346 | --portdata->outstanding_urbs; | |
347 | spin_unlock_irqrestore(&portdata->lock, flags); | |
348 | ||
349 | usb_serial_port_softint(port); | |
350 | } | |
351 | ||
033a3fb9 | 352 | /* Write */ |
95da310e AC |
353 | static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port, |
354 | const unsigned char *buf, int count) | |
033a3fb9 | 355 | { |
17c23274 GKH |
356 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
357 | struct usb_serial *serial = port->serial; | |
358 | unsigned long flags; | |
359 | unsigned char *buffer; | |
360 | struct urb *urb; | |
361 | int status; | |
033a3fb9 KL |
362 | |
363 | portdata = usb_get_serial_port_data(port); | |
364 | ||
441b62c1 | 365 | dbg("%s: write (%d chars)", __func__, count); |
033a3fb9 | 366 | |
17c23274 GKH |
367 | spin_lock_irqsave(&portdata->lock, flags); |
368 | if (portdata->outstanding_urbs > N_OUT_URB) { | |
369 | spin_unlock_irqrestore(&portdata->lock, flags); | |
441b62c1 | 370 | dbg("%s - write limit hit\n", __func__); |
17c23274 GKH |
371 | return 0; |
372 | } | |
373 | portdata->outstanding_urbs++; | |
374 | spin_unlock_irqrestore(&portdata->lock, flags); | |
375 | ||
376 | buffer = kmalloc(count, GFP_ATOMIC); | |
377 | if (!buffer) { | |
378 | dev_err(&port->dev, "out of memory\n"); | |
379 | count = -ENOMEM; | |
380 | goto error_no_buffer; | |
381 | } | |
033a3fb9 | 382 | |
17c23274 GKH |
383 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
384 | if (!urb) { | |
385 | dev_err(&port->dev, "no more free urbs\n"); | |
386 | count = -ENOMEM; | |
387 | goto error_no_urb; | |
388 | } | |
033a3fb9 | 389 | |
17c23274 | 390 | memcpy(buffer, buf, count); |
033a3fb9 | 391 | |
441b62c1 | 392 | usb_serial_debug_data(debug, &port->dev, __func__, count, buffer); |
17c23274 GKH |
393 | |
394 | usb_fill_bulk_urb(urb, serial->dev, | |
395 | usb_sndbulkpipe(serial->dev, | |
396 | port->bulk_out_endpointAddress), | |
397 | buffer, count, sierra_outdat_callback, port); | |
398 | ||
399 | /* send it down the pipe */ | |
400 | status = usb_submit_urb(urb, GFP_ATOMIC); | |
401 | if (status) { | |
402 | dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " | |
441b62c1 | 403 | "with status = %d\n", __func__, status); |
17c23274 GKH |
404 | count = status; |
405 | goto error; | |
033a3fb9 KL |
406 | } |
407 | ||
17c23274 GKH |
408 | /* we are done with this urb, so let the host driver |
409 | * really free it when it is finished with it */ | |
410 | usb_free_urb(urb); | |
411 | ||
412 | return count; | |
413 | error: | |
414 | usb_free_urb(urb); | |
415 | error_no_urb: | |
416 | kfree(buffer); | |
417 | error_no_buffer: | |
418 | spin_lock_irqsave(&portdata->lock, flags); | |
419 | --portdata->outstanding_urbs; | |
420 | spin_unlock_irqrestore(&portdata->lock, flags); | |
033a3fb9 KL |
421 | return count; |
422 | } | |
423 | ||
424 | static void sierra_indat_callback(struct urb *urb) | |
425 | { | |
426 | int err; | |
427 | int endpoint; | |
428 | struct usb_serial_port *port; | |
429 | struct tty_struct *tty; | |
430 | unsigned char *data = urb->transfer_buffer; | |
17dd2215 | 431 | int status = urb->status; |
033a3fb9 | 432 | |
441b62c1 | 433 | dbg("%s: %p", __func__, urb); |
033a3fb9 KL |
434 | |
435 | endpoint = usb_pipeendpoint(urb->pipe); | |
cdc97792 | 436 | port = urb->context; |
033a3fb9 | 437 | |
17dd2215 | 438 | if (status) { |
033a3fb9 | 439 | dbg("%s: nonzero status: %d on endpoint %02x.", |
441b62c1 | 440 | __func__, status, endpoint); |
033a3fb9 | 441 | } else { |
95da310e | 442 | tty = port->port.tty; |
033a3fb9 KL |
443 | if (urb->actual_length) { |
444 | tty_buffer_request_room(tty, urb->actual_length); | |
445 | tty_insert_flip_string(tty, data, urb->actual_length); | |
446 | tty_flip_buffer_push(tty); | |
447 | } else { | |
441b62c1 | 448 | dbg("%s: empty read urb received", __func__); |
033a3fb9 KL |
449 | } |
450 | ||
451 | /* Resubmit urb so we continue receiving */ | |
95da310e | 452 | if (port->port.count && status != -ESHUTDOWN) { |
033a3fb9 KL |
453 | err = usb_submit_urb(urb, GFP_ATOMIC); |
454 | if (err) | |
17c23274 | 455 | dev_err(&port->dev, "resubmit read urb failed." |
898eb71c | 456 | "(%d)\n", err); |
033a3fb9 KL |
457 | } |
458 | } | |
459 | return; | |
460 | } | |
461 | ||
033a3fb9 KL |
462 | static void sierra_instat_callback(struct urb *urb) |
463 | { | |
464 | int err; | |
17dd2215 | 465 | int status = urb->status; |
cdc97792 | 466 | struct usb_serial_port *port = urb->context; |
033a3fb9 KL |
467 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
468 | struct usb_serial *serial = port->serial; | |
469 | ||
441b62c1 HH |
470 | dbg("%s", __func__); |
471 | dbg("%s: urb %p port %p has data %p", __func__, urb, port, portdata); | |
033a3fb9 | 472 | |
17dd2215 | 473 | if (status == 0) { |
033a3fb9 KL |
474 | struct usb_ctrlrequest *req_pkt = |
475 | (struct usb_ctrlrequest *)urb->transfer_buffer; | |
476 | ||
477 | if (!req_pkt) { | |
441b62c1 | 478 | dbg("%s: NULL req_pkt\n", __func__); |
033a3fb9 KL |
479 | return; |
480 | } | |
481 | if ((req_pkt->bRequestType == 0xA1) && | |
482 | (req_pkt->bRequest == 0x20)) { | |
483 | int old_dcd_state; | |
484 | unsigned char signals = *((unsigned char *) | |
485 | urb->transfer_buffer + | |
486 | sizeof(struct usb_ctrlrequest)); | |
487 | ||
441b62c1 | 488 | dbg("%s: signal x%x", __func__, signals); |
033a3fb9 KL |
489 | |
490 | old_dcd_state = portdata->dcd_state; | |
491 | portdata->cts_state = 1; | |
492 | portdata->dcd_state = ((signals & 0x01) ? 1 : 0); | |
493 | portdata->dsr_state = ((signals & 0x02) ? 1 : 0); | |
494 | portdata->ri_state = ((signals & 0x08) ? 1 : 0); | |
495 | ||
95da310e | 496 | if (port->port.tty && !C_CLOCAL(port->port.tty) && |
033a3fb9 | 497 | old_dcd_state && !portdata->dcd_state) |
95da310e | 498 | tty_hangup(port->port.tty); |
033a3fb9 | 499 | } else { |
441b62c1 | 500 | dbg("%s: type %x req %x", __func__, |
f3564de4 | 501 | req_pkt->bRequestType, req_pkt->bRequest); |
033a3fb9 KL |
502 | } |
503 | } else | |
441b62c1 | 504 | dbg("%s: error %d", __func__, status); |
033a3fb9 KL |
505 | |
506 | /* Resubmit urb so we continue receiving IRQ data */ | |
17dd2215 | 507 | if (status != -ESHUTDOWN) { |
033a3fb9 KL |
508 | urb->dev = serial->dev; |
509 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
510 | if (err) | |
511 | dbg("%s: resubmit intr urb failed. (%d)", | |
441b62c1 | 512 | __func__, err); |
033a3fb9 KL |
513 | } |
514 | } | |
515 | ||
95da310e | 516 | static int sierra_write_room(struct tty_struct *tty) |
033a3fb9 | 517 | { |
95da310e | 518 | struct usb_serial_port *port = tty->driver_data; |
17c23274 GKH |
519 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
520 | unsigned long flags; | |
033a3fb9 | 521 | |
441b62c1 | 522 | dbg("%s - port %d", __func__, port->number); |
033a3fb9 | 523 | |
17c23274 GKH |
524 | /* try to give a good number back based on if we have any free urbs at |
525 | * this point in time */ | |
526 | spin_lock_irqsave(&portdata->lock, flags); | |
527 | if (portdata->outstanding_urbs > N_OUT_URB * 2 / 3) { | |
528 | spin_unlock_irqrestore(&portdata->lock, flags); | |
441b62c1 | 529 | dbg("%s - write limit hit\n", __func__); |
17c23274 | 530 | return 0; |
033a3fb9 | 531 | } |
17c23274 | 532 | spin_unlock_irqrestore(&portdata->lock, flags); |
033a3fb9 | 533 | |
17c23274 | 534 | return 2048; |
033a3fb9 KL |
535 | } |
536 | ||
95da310e AC |
537 | static int sierra_open(struct tty_struct *tty, |
538 | struct usb_serial_port *port, struct file *filp) | |
033a3fb9 KL |
539 | { |
540 | struct sierra_port_private *portdata; | |
541 | struct usb_serial *serial = port->serial; | |
9e85c5f6 | 542 | int i; |
033a3fb9 | 543 | struct urb *urb; |
e43062dd | 544 | int result; |
033a3fb9 KL |
545 | |
546 | portdata = usb_get_serial_port_data(port); | |
547 | ||
441b62c1 | 548 | dbg("%s", __func__); |
033a3fb9 KL |
549 | |
550 | /* Set some sane defaults */ | |
551 | portdata->rts_state = 1; | |
552 | portdata->dtr_state = 1; | |
553 | ||
554 | /* Reset low level data toggle and start reading from endpoints */ | |
555 | for (i = 0; i < N_IN_URB; i++) { | |
556 | urb = portdata->in_urbs[i]; | |
9e85c5f6 | 557 | if (!urb) |
033a3fb9 KL |
558 | continue; |
559 | if (urb->dev != serial->dev) { | |
441b62c1 | 560 | dbg("%s: dev %p != %p", __func__, |
033a3fb9 KL |
561 | urb->dev, serial->dev); |
562 | continue; | |
563 | } | |
564 | ||
565 | /* | |
566 | * make sure endpoint data toggle is synchronized with the | |
567 | * device | |
568 | */ | |
569 | usb_clear_halt(urb->dev, urb->pipe); | |
570 | ||
9e85c5f6 GKH |
571 | result = usb_submit_urb(urb, GFP_KERNEL); |
572 | if (result) { | |
898eb71c | 573 | dev_err(&port->dev, "submit urb %d failed (%d) %d\n", |
9e85c5f6 | 574 | i, result, urb->transfer_buffer_length); |
033a3fb9 KL |
575 | } |
576 | } | |
577 | ||
95da310e AC |
578 | if (tty) |
579 | tty->low_latency = 1; | |
033a3fb9 | 580 | |
95da310e | 581 | sierra_send_setup(tty, port); |
033a3fb9 | 582 | |
9e85c5f6 GKH |
583 | /* start up the interrupt endpoint if we have one */ |
584 | if (port->interrupt_in_urb) { | |
585 | result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); | |
586 | if (result) | |
898eb71c | 587 | dev_err(&port->dev, "submit irq_in urb failed %d\n", |
9e85c5f6 GKH |
588 | result); |
589 | } | |
590 | return 0; | |
033a3fb9 KL |
591 | } |
592 | ||
95da310e AC |
593 | static void sierra_close(struct tty_struct *tty, |
594 | struct usb_serial_port *port, struct file *filp) | |
033a3fb9 KL |
595 | { |
596 | int i; | |
597 | struct usb_serial *serial = port->serial; | |
598 | struct sierra_port_private *portdata; | |
599 | ||
441b62c1 | 600 | dbg("%s", __func__); |
033a3fb9 KL |
601 | portdata = usb_get_serial_port_data(port); |
602 | ||
603 | portdata->rts_state = 0; | |
604 | portdata->dtr_state = 0; | |
605 | ||
606 | if (serial->dev) { | |
e33fe4d8 ON |
607 | mutex_lock(&serial->disc_mutex); |
608 | if (!serial->disconnected) | |
95da310e | 609 | sierra_send_setup(tty, port); |
e33fe4d8 | 610 | mutex_unlock(&serial->disc_mutex); |
033a3fb9 KL |
611 | |
612 | /* Stop reading/writing urbs */ | |
613 | for (i = 0; i < N_IN_URB; i++) | |
9e85c5f6 | 614 | usb_kill_urb(portdata->in_urbs[i]); |
033a3fb9 KL |
615 | } |
616 | ||
9e85c5f6 | 617 | usb_kill_urb(port->interrupt_in_urb); |
033a3fb9 | 618 | |
95da310e | 619 | port->port.tty = NULL; /* FIXME */ |
033a3fb9 KL |
620 | } |
621 | ||
033a3fb9 KL |
622 | static int sierra_startup(struct usb_serial *serial) |
623 | { | |
033a3fb9 KL |
624 | struct usb_serial_port *port; |
625 | struct sierra_port_private *portdata; | |
9e85c5f6 GKH |
626 | struct urb *urb; |
627 | int i; | |
628 | int j; | |
033a3fb9 | 629 | |
441b62c1 | 630 | dbg("%s", __func__); |
033a3fb9 | 631 | |
228426ed | 632 | /* Set Device mode to D0 */ |
112225b1 KL |
633 | sierra_set_power_state(serial->dev, 0x0000); |
634 | ||
228426ed KL |
635 | /* Check NMEA and set */ |
636 | if (nmea) | |
637 | sierra_vsc_set_nmea(serial->dev, 1); | |
638 | ||
033a3fb9 KL |
639 | /* Now setup per port private data */ |
640 | for (i = 0; i < serial->num_ports; i++) { | |
641 | port = serial->port[i]; | |
642 | portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); | |
643 | if (!portdata) { | |
644 | dbg("%s: kmalloc for sierra_port_private (%d) failed!.", | |
441b62c1 | 645 | __func__, i); |
17c23274 | 646 | return -ENOMEM; |
033a3fb9 | 647 | } |
17c23274 | 648 | spin_lock_init(&portdata->lock); |
4f4f9c53 ON |
649 | for (j = 0; j < N_IN_URB; j++) { |
650 | portdata->in_buffer[j] = kmalloc(IN_BUFLEN, GFP_KERNEL); | |
651 | if (!portdata->in_buffer[j]) { | |
652 | for (--j; j >= 0; j--) | |
653 | kfree(portdata->in_buffer[j]); | |
654 | kfree(portdata); | |
655 | return -ENOMEM; | |
656 | } | |
657 | } | |
033a3fb9 KL |
658 | |
659 | usb_set_serial_port_data(port, portdata); | |
660 | ||
9e85c5f6 GKH |
661 | /* initialize the in urbs */ |
662 | for (j = 0; j < N_IN_URB; ++j) { | |
663 | urb = usb_alloc_urb(0, GFP_KERNEL); | |
664 | if (urb == NULL) { | |
665 | dbg("%s: alloc for in port failed.", | |
441b62c1 | 666 | __func__); |
9e85c5f6 GKH |
667 | continue; |
668 | } | |
669 | /* Fill URB using supplied data. */ | |
670 | usb_fill_bulk_urb(urb, serial->dev, | |
671 | usb_rcvbulkpipe(serial->dev, | |
672 | port->bulk_in_endpointAddress), | |
673 | portdata->in_buffer[j], IN_BUFLEN, | |
674 | sierra_indat_callback, port); | |
675 | portdata->in_urbs[j] = urb; | |
676 | } | |
033a3fb9 KL |
677 | } |
678 | ||
17c23274 | 679 | return 0; |
033a3fb9 KL |
680 | } |
681 | ||
682 | static void sierra_shutdown(struct usb_serial *serial) | |
683 | { | |
684 | int i, j; | |
685 | struct usb_serial_port *port; | |
686 | struct sierra_port_private *portdata; | |
687 | ||
441b62c1 | 688 | dbg("%s", __func__); |
033a3fb9 | 689 | |
033a3fb9 KL |
690 | for (i = 0; i < serial->num_ports; ++i) { |
691 | port = serial->port[i]; | |
f094e4f3 GKH |
692 | if (!port) |
693 | continue; | |
033a3fb9 | 694 | portdata = usb_get_serial_port_data(port); |
f094e4f3 GKH |
695 | if (!portdata) |
696 | continue; | |
033a3fb9 KL |
697 | |
698 | for (j = 0; j < N_IN_URB; j++) { | |
9e85c5f6 GKH |
699 | usb_kill_urb(portdata->in_urbs[j]); |
700 | usb_free_urb(portdata->in_urbs[j]); | |
4f4f9c53 | 701 | kfree(portdata->in_buffer[j]); |
033a3fb9 | 702 | } |
9e85c5f6 GKH |
703 | kfree(portdata); |
704 | usb_set_serial_port_data(port, NULL); | |
033a3fb9 KL |
705 | } |
706 | } | |
707 | ||
228426ed | 708 | static struct usb_serial_driver sierra_device = { |
964ee1de GKH |
709 | .driver = { |
710 | .owner = THIS_MODULE, | |
4e0fee82 | 711 | .name = "sierra", |
964ee1de | 712 | }, |
228426ed KL |
713 | .description = "Sierra USB modem", |
714 | .id_table = id_table, | |
d9b1b787 | 715 | .usb_driver = &sierra_driver, |
228426ed KL |
716 | .calc_num_ports = sierra_calc_num_ports, |
717 | .probe = sierra_probe, | |
964ee1de GKH |
718 | .open = sierra_open, |
719 | .close = sierra_close, | |
720 | .write = sierra_write, | |
721 | .write_room = sierra_write_room, | |
964ee1de | 722 | .set_termios = sierra_set_termios, |
964ee1de GKH |
723 | .tiocmget = sierra_tiocmget, |
724 | .tiocmset = sierra_tiocmset, | |
725 | .attach = sierra_startup, | |
726 | .shutdown = sierra_shutdown, | |
727 | .read_int_callback = sierra_instat_callback, | |
728 | }; | |
729 | ||
730 | /* Functions used by new usb-serial code. */ | |
731 | static int __init sierra_init(void) | |
732 | { | |
733 | int retval; | |
228426ed | 734 | retval = usb_serial_register(&sierra_device); |
964ee1de | 735 | if (retval) |
228426ed | 736 | goto failed_device_register; |
964ee1de GKH |
737 | |
738 | ||
739 | retval = usb_register(&sierra_driver); | |
740 | if (retval) | |
741 | goto failed_driver_register; | |
742 | ||
743 | info(DRIVER_DESC ": " DRIVER_VERSION); | |
744 | ||
745 | return 0; | |
746 | ||
747 | failed_driver_register: | |
228426ed KL |
748 | usb_serial_deregister(&sierra_device); |
749 | failed_device_register: | |
964ee1de GKH |
750 | return retval; |
751 | } | |
752 | ||
753 | static void __exit sierra_exit(void) | |
754 | { | |
9660ea36 | 755 | usb_deregister(&sierra_driver); |
228426ed | 756 | usb_serial_deregister(&sierra_device); |
964ee1de GKH |
757 | } |
758 | ||
759 | module_init(sierra_init); | |
760 | module_exit(sierra_exit); | |
761 | ||
033a3fb9 KL |
762 | MODULE_AUTHOR(DRIVER_AUTHOR); |
763 | MODULE_DESCRIPTION(DRIVER_DESC); | |
764 | MODULE_VERSION(DRIVER_VERSION); | |
69de51fd | 765 | MODULE_LICENSE("GPL"); |
033a3fb9 | 766 | |
4e0fee82 | 767 | module_param(nmea, bool, S_IRUGO | S_IWUSR); |
228426ed KL |
768 | MODULE_PARM_DESC(nmea, "NMEA streaming"); |
769 | ||
033a3fb9 KL |
770 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
771 | MODULE_PARM_DESC(debug, "Debug messages"); |