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 | ||
212b8f0c | 17 | #define DRIVER_VERSION "v.1.3.3" |
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 */ | |
b77a5c70 | 189 | { USB_DEVICE(0x1199, 0x683A) }, /* Sierra Wireless MC8785 */ |
e3173b22 KL |
190 | { USB_DEVICE(0x1199, 0x683B) }, /* Sierra Wireless MC8785 Composite */ |
191 | { USB_DEVICE(0x1199, 0x683C) }, /* Sierra Wireless MC8790 */ | |
192 | { USB_DEVICE(0x1199, 0x683D) }, /* Sierra Wireless MC8790 */ | |
193 | { USB_DEVICE(0x1199, 0x683E) }, /* Sierra Wireless MC8790 */ | |
9454c46a KL |
194 | { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ |
195 | { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ | |
196 | { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */ | |
197 | { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */ | |
6835b32c | 198 | { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */ |
62aad3ab | 199 | { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ |
e3173b22 KL |
200 | { USB_DEVICE(0x1199, 0x6859) }, /* Sierra Wireless AirCard 885 E */ |
201 | { USB_DEVICE(0x1199, 0x685A) }, /* Sierra Wireless AirCard 885 E */ | |
202 | /* Sierra Wireless C885 */ | |
203 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6880, 0xFF, 0xFF, 0xFF)}, | |
204 | /* Sierra Wireless Device */ | |
205 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6890, 0xFF, 0xFF, 0xFF)}, | |
206 | /* Sierra Wireless Device */ | |
73b2c205 KL |
207 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6891, 0xFF, 0xFF, 0xFF)}, |
208 | /* Sierra Wireless Device */ | |
e3173b22 KL |
209 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6892, 0xFF, 0xFF, 0xFF)}, |
210 | ||
211 | { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */ | |
212 | { USB_DEVICE(0x0F3D, 0x0112) }, /* Airprime/Sierra PC 5220 */ | |
112225b1 | 213 | |
033a3fb9 KL |
214 | { } |
215 | }; | |
964ee1de | 216 | MODULE_DEVICE_TABLE(usb, id_table); |
033a3fb9 | 217 | |
69de51fd | 218 | static struct usb_driver sierra_driver = { |
033a3fb9 | 219 | .name = "sierra", |
228426ed | 220 | .probe = usb_serial_probe, |
033a3fb9 KL |
221 | .disconnect = usb_serial_disconnect, |
222 | .id_table = id_table, | |
964ee1de | 223 | .no_dynamic_id = 1, |
033a3fb9 KL |
224 | }; |
225 | ||
033a3fb9 | 226 | struct sierra_port_private { |
17c23274 GKH |
227 | spinlock_t lock; /* lock the structure */ |
228 | int outstanding_urbs; /* number of out urbs in flight */ | |
229 | ||
4f4f9c53 | 230 | /* Input endpoints and buffers for this port */ |
033a3fb9 | 231 | struct urb *in_urbs[N_IN_URB]; |
4f4f9c53 | 232 | char *in_buffer[N_IN_URB]; |
033a3fb9 KL |
233 | |
234 | /* Settings for the port */ | |
235 | int rts_state; /* Handshaking pins (outputs) */ | |
236 | int dtr_state; | |
237 | int cts_state; /* Handshaking pins (inputs) */ | |
238 | int dsr_state; | |
239 | int dcd_state; | |
240 | int ri_state; | |
033a3fb9 KL |
241 | }; |
242 | ||
335f8514 | 243 | static int sierra_send_setup(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; |
335f8514 | 248 | int val = 0; |
033a3fb9 | 249 | |
7384a922 | 250 | dev_dbg(&port->dev, "%s", __func__); |
033a3fb9 | 251 | |
964ee1de | 252 | portdata = usb_get_serial_port_data(port); |
033a3fb9 | 253 | |
335f8514 AC |
254 | if (portdata->dtr_state) |
255 | val |= 0x01; | |
256 | if (portdata->rts_state) | |
257 | val |= 0x02; | |
258 | ||
259 | /* If composite device then properly report interface */ | |
260 | if (serial->num_ports == 1) | |
261 | interface = sierra_calc_interface(serial); | |
262 | ||
263 | /* Otherwise the need to do non-composite mapping */ | |
264 | else { | |
265 | if (port->bulk_out_endpointAddress == 2) | |
266 | interface = 0; | |
267 | else if (port->bulk_out_endpointAddress == 4) | |
268 | interface = 1; | |
269 | else if (port->bulk_out_endpointAddress == 5) | |
270 | interface = 2; | |
964ee1de | 271 | } |
335f8514 AC |
272 | return usb_control_msg(serial->dev, |
273 | usb_rcvctrlpipe(serial->dev, 0), | |
274 | 0x22, 0x21, val, interface, | |
275 | NULL, 0, USB_CTRL_SET_TIMEOUT); | |
964ee1de | 276 | return 0; |
69de51fd KL |
277 | } |
278 | ||
95da310e AC |
279 | static void sierra_set_termios(struct tty_struct *tty, |
280 | struct usb_serial_port *port, struct ktermios *old_termios) | |
033a3fb9 | 281 | { |
7384a922 | 282 | dev_dbg(&port->dev, "%s", __func__); |
95da310e | 283 | tty_termios_copy_hw(tty->termios, old_termios); |
335f8514 | 284 | sierra_send_setup(port); |
033a3fb9 KL |
285 | } |
286 | ||
95da310e | 287 | static int sierra_tiocmget(struct tty_struct *tty, struct file *file) |
033a3fb9 | 288 | { |
95da310e | 289 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
290 | unsigned int value; |
291 | struct sierra_port_private *portdata; | |
292 | ||
7384a922 | 293 | dev_dbg(&port->dev, "%s", __func__); |
033a3fb9 KL |
294 | portdata = usb_get_serial_port_data(port); |
295 | ||
296 | value = ((portdata->rts_state) ? TIOCM_RTS : 0) | | |
297 | ((portdata->dtr_state) ? TIOCM_DTR : 0) | | |
298 | ((portdata->cts_state) ? TIOCM_CTS : 0) | | |
299 | ((portdata->dsr_state) ? TIOCM_DSR : 0) | | |
300 | ((portdata->dcd_state) ? TIOCM_CAR : 0) | | |
301 | ((portdata->ri_state) ? TIOCM_RNG : 0); | |
302 | ||
303 | return value; | |
304 | } | |
305 | ||
95da310e | 306 | static int sierra_tiocmset(struct tty_struct *tty, struct file *file, |
033a3fb9 KL |
307 | unsigned int set, unsigned int clear) |
308 | { | |
95da310e | 309 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
310 | struct sierra_port_private *portdata; |
311 | ||
312 | portdata = usb_get_serial_port_data(port); | |
313 | ||
314 | if (set & TIOCM_RTS) | |
315 | portdata->rts_state = 1; | |
316 | if (set & TIOCM_DTR) | |
317 | portdata->dtr_state = 1; | |
318 | ||
319 | if (clear & TIOCM_RTS) | |
320 | portdata->rts_state = 0; | |
321 | if (clear & TIOCM_DTR) | |
322 | portdata->dtr_state = 0; | |
335f8514 | 323 | return sierra_send_setup(port); |
033a3fb9 KL |
324 | } |
325 | ||
17c23274 GKH |
326 | static void sierra_outdat_callback(struct urb *urb) |
327 | { | |
328 | struct usb_serial_port *port = urb->context; | |
329 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
330 | int status = urb->status; | |
331 | unsigned long flags; | |
332 | ||
7384a922 | 333 | dev_dbg(&port->dev, "%s - port %d", __func__, port->number); |
17c23274 GKH |
334 | |
335 | /* free up the transfer buffer, as usb_free_urb() does not do this */ | |
336 | kfree(urb->transfer_buffer); | |
337 | ||
338 | if (status) | |
7384a922 KL |
339 | dev_dbg(&port->dev, "%s - nonzero write bulk status " |
340 | "received: %d", __func__, status); | |
17c23274 GKH |
341 | |
342 | spin_lock_irqsave(&portdata->lock, flags); | |
343 | --portdata->outstanding_urbs; | |
344 | spin_unlock_irqrestore(&portdata->lock, flags); | |
345 | ||
346 | usb_serial_port_softint(port); | |
347 | } | |
348 | ||
033a3fb9 | 349 | /* Write */ |
95da310e AC |
350 | static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port, |
351 | const unsigned char *buf, int count) | |
033a3fb9 | 352 | { |
17c23274 GKH |
353 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
354 | struct usb_serial *serial = port->serial; | |
355 | unsigned long flags; | |
356 | unsigned char *buffer; | |
357 | struct urb *urb; | |
358 | int status; | |
033a3fb9 KL |
359 | |
360 | portdata = usb_get_serial_port_data(port); | |
361 | ||
7384a922 | 362 | dev_dbg(&port->dev, "%s: write (%d chars)", __func__, count); |
033a3fb9 | 363 | |
17c23274 GKH |
364 | spin_lock_irqsave(&portdata->lock, flags); |
365 | if (portdata->outstanding_urbs > N_OUT_URB) { | |
366 | spin_unlock_irqrestore(&portdata->lock, flags); | |
7384a922 | 367 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 GKH |
368 | return 0; |
369 | } | |
370 | portdata->outstanding_urbs++; | |
371 | spin_unlock_irqrestore(&portdata->lock, flags); | |
372 | ||
373 | buffer = kmalloc(count, GFP_ATOMIC); | |
374 | if (!buffer) { | |
375 | dev_err(&port->dev, "out of memory\n"); | |
376 | count = -ENOMEM; | |
377 | goto error_no_buffer; | |
378 | } | |
033a3fb9 | 379 | |
17c23274 GKH |
380 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
381 | if (!urb) { | |
382 | dev_err(&port->dev, "no more free urbs\n"); | |
383 | count = -ENOMEM; | |
384 | goto error_no_urb; | |
385 | } | |
033a3fb9 | 386 | |
17c23274 | 387 | memcpy(buffer, buf, count); |
033a3fb9 | 388 | |
441b62c1 | 389 | usb_serial_debug_data(debug, &port->dev, __func__, count, buffer); |
17c23274 GKH |
390 | |
391 | usb_fill_bulk_urb(urb, serial->dev, | |
392 | usb_sndbulkpipe(serial->dev, | |
393 | port->bulk_out_endpointAddress), | |
394 | buffer, count, sierra_outdat_callback, port); | |
395 | ||
396 | /* send it down the pipe */ | |
397 | status = usb_submit_urb(urb, GFP_ATOMIC); | |
398 | if (status) { | |
399 | dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " | |
441b62c1 | 400 | "with status = %d\n", __func__, status); |
17c23274 GKH |
401 | count = status; |
402 | goto error; | |
033a3fb9 KL |
403 | } |
404 | ||
17c23274 GKH |
405 | /* we are done with this urb, so let the host driver |
406 | * really free it when it is finished with it */ | |
407 | usb_free_urb(urb); | |
408 | ||
409 | return count; | |
410 | error: | |
411 | usb_free_urb(urb); | |
412 | error_no_urb: | |
413 | kfree(buffer); | |
414 | error_no_buffer: | |
415 | spin_lock_irqsave(&portdata->lock, flags); | |
416 | --portdata->outstanding_urbs; | |
417 | spin_unlock_irqrestore(&portdata->lock, flags); | |
033a3fb9 KL |
418 | return count; |
419 | } | |
420 | ||
421 | static void sierra_indat_callback(struct urb *urb) | |
422 | { | |
423 | int err; | |
424 | int endpoint; | |
425 | struct usb_serial_port *port; | |
426 | struct tty_struct *tty; | |
427 | unsigned char *data = urb->transfer_buffer; | |
17dd2215 | 428 | int status = urb->status; |
033a3fb9 | 429 | |
441b62c1 | 430 | dbg("%s: %p", __func__, urb); |
033a3fb9 KL |
431 | |
432 | endpoint = usb_pipeendpoint(urb->pipe); | |
cdc97792 | 433 | port = urb->context; |
033a3fb9 | 434 | |
17dd2215 | 435 | if (status) { |
7384a922 KL |
436 | dev_dbg(&port->dev, "%s: nonzero status: %d on" |
437 | " endpoint %02x.", __func__, status, endpoint); | |
033a3fb9 | 438 | } else { |
033a3fb9 | 439 | if (urb->actual_length) { |
d95186d1 | 440 | tty = tty_port_tty_get(&port->port); |
033a3fb9 KL |
441 | tty_buffer_request_room(tty, urb->actual_length); |
442 | tty_insert_flip_string(tty, data, urb->actual_length); | |
443 | tty_flip_buffer_push(tty); | |
4a90f09b AC |
444 | tty_kref_put(tty); |
445 | } else | |
7384a922 KL |
446 | dev_dbg(&port->dev, "%s: empty read urb" |
447 | " received", __func__); | |
033a3fb9 KL |
448 | |
449 | /* Resubmit urb so we continue receiving */ | |
95da310e | 450 | if (port->port.count && status != -ESHUTDOWN) { |
033a3fb9 KL |
451 | err = usb_submit_urb(urb, GFP_ATOMIC); |
452 | if (err) | |
17c23274 | 453 | dev_err(&port->dev, "resubmit read urb failed." |
898eb71c | 454 | "(%d)\n", err); |
033a3fb9 KL |
455 | } |
456 | } | |
457 | return; | |
458 | } | |
459 | ||
033a3fb9 KL |
460 | static void sierra_instat_callback(struct urb *urb) |
461 | { | |
462 | int err; | |
17dd2215 | 463 | int status = urb->status; |
cdc97792 | 464 | struct usb_serial_port *port = urb->context; |
033a3fb9 KL |
465 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
466 | struct usb_serial *serial = port->serial; | |
467 | ||
7384a922 KL |
468 | dev_dbg(&port->dev, "%s", __func__); |
469 | dev_dbg(&port->dev, "%s: urb %p port %p has data %p", __func__, | |
470 | urb, port, portdata); | |
033a3fb9 | 471 | |
17dd2215 | 472 | if (status == 0) { |
033a3fb9 KL |
473 | struct usb_ctrlrequest *req_pkt = |
474 | (struct usb_ctrlrequest *)urb->transfer_buffer; | |
475 | ||
476 | if (!req_pkt) { | |
7384a922 KL |
477 | dev_dbg(&port->dev, "%s: NULL req_pkt\n", |
478 | __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)); | |
4a90f09b | 487 | struct tty_struct *tty; |
033a3fb9 | 488 | |
7384a922 KL |
489 | dev_dbg(&port->dev, "%s: signal x%x", __func__, |
490 | signals); | |
033a3fb9 KL |
491 | |
492 | old_dcd_state = portdata->dcd_state; | |
493 | portdata->cts_state = 1; | |
494 | portdata->dcd_state = ((signals & 0x01) ? 1 : 0); | |
495 | portdata->dsr_state = ((signals & 0x02) ? 1 : 0); | |
496 | portdata->ri_state = ((signals & 0x08) ? 1 : 0); | |
497 | ||
4a90f09b AC |
498 | tty = tty_port_tty_get(&port->port); |
499 | if (tty && !C_CLOCAL(tty) && | |
033a3fb9 | 500 | old_dcd_state && !portdata->dcd_state) |
4a90f09b AC |
501 | tty_hangup(tty); |
502 | tty_kref_put(tty); | |
033a3fb9 | 503 | } else { |
7384a922 KL |
504 | dev_dbg(&port->dev, "%s: type %x req %x", |
505 | __func__, req_pkt->bRequestType, | |
506 | req_pkt->bRequest); | |
033a3fb9 KL |
507 | } |
508 | } else | |
7384a922 | 509 | dev_dbg(&port->dev, "%s: error %d", __func__, status); |
033a3fb9 KL |
510 | |
511 | /* Resubmit urb so we continue receiving IRQ data */ | |
17dd2215 | 512 | if (status != -ESHUTDOWN) { |
033a3fb9 KL |
513 | urb->dev = serial->dev; |
514 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
515 | if (err) | |
7384a922 KL |
516 | dev_dbg(&port->dev, "%s: resubmit intr urb " |
517 | "failed. (%d)", __func__, err); | |
033a3fb9 KL |
518 | } |
519 | } | |
520 | ||
95da310e | 521 | static int sierra_write_room(struct tty_struct *tty) |
033a3fb9 | 522 | { |
95da310e | 523 | struct usb_serial_port *port = tty->driver_data; |
17c23274 GKH |
524 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
525 | unsigned long flags; | |
033a3fb9 | 526 | |
7384a922 | 527 | dev_dbg(&port->dev, "%s - port %d", __func__, port->number); |
033a3fb9 | 528 | |
17c23274 GKH |
529 | /* try to give a good number back based on if we have any free urbs at |
530 | * this point in time */ | |
531 | spin_lock_irqsave(&portdata->lock, flags); | |
532 | if (portdata->outstanding_urbs > N_OUT_URB * 2 / 3) { | |
533 | spin_unlock_irqrestore(&portdata->lock, flags); | |
7384a922 | 534 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 | 535 | return 0; |
033a3fb9 | 536 | } |
17c23274 | 537 | spin_unlock_irqrestore(&portdata->lock, flags); |
033a3fb9 | 538 | |
17c23274 | 539 | return 2048; |
033a3fb9 KL |
540 | } |
541 | ||
95da310e AC |
542 | static int sierra_open(struct tty_struct *tty, |
543 | struct usb_serial_port *port, struct file *filp) | |
033a3fb9 KL |
544 | { |
545 | struct sierra_port_private *portdata; | |
546 | struct usb_serial *serial = port->serial; | |
9e85c5f6 | 547 | int i; |
033a3fb9 | 548 | struct urb *urb; |
e43062dd | 549 | int result; |
033a3fb9 KL |
550 | |
551 | portdata = usb_get_serial_port_data(port); | |
552 | ||
7384a922 | 553 | dev_dbg(&port->dev, "%s", __func__); |
033a3fb9 KL |
554 | |
555 | /* Set some sane defaults */ | |
556 | portdata->rts_state = 1; | |
557 | portdata->dtr_state = 1; | |
558 | ||
559 | /* Reset low level data toggle and start reading from endpoints */ | |
560 | for (i = 0; i < N_IN_URB; i++) { | |
561 | urb = portdata->in_urbs[i]; | |
9e85c5f6 | 562 | if (!urb) |
033a3fb9 KL |
563 | continue; |
564 | if (urb->dev != serial->dev) { | |
7384a922 KL |
565 | dev_dbg(&port->dev, "%s: dev %p != %p", |
566 | __func__, urb->dev, serial->dev); | |
033a3fb9 KL |
567 | continue; |
568 | } | |
569 | ||
570 | /* | |
571 | * make sure endpoint data toggle is synchronized with the | |
572 | * device | |
573 | */ | |
574 | usb_clear_halt(urb->dev, urb->pipe); | |
575 | ||
9e85c5f6 GKH |
576 | result = usb_submit_urb(urb, GFP_KERNEL); |
577 | if (result) { | |
898eb71c | 578 | dev_err(&port->dev, "submit urb %d failed (%d) %d\n", |
9e85c5f6 | 579 | i, result, urb->transfer_buffer_length); |
033a3fb9 KL |
580 | } |
581 | } | |
582 | ||
335f8514 | 583 | sierra_send_setup(port); |
033a3fb9 | 584 | |
9e85c5f6 GKH |
585 | /* start up the interrupt endpoint if we have one */ |
586 | if (port->interrupt_in_urb) { | |
587 | result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); | |
588 | if (result) | |
898eb71c | 589 | dev_err(&port->dev, "submit irq_in urb failed %d\n", |
9e85c5f6 GKH |
590 | result); |
591 | } | |
592 | return 0; | |
033a3fb9 KL |
593 | } |
594 | ||
335f8514 | 595 | static void sierra_dtr_rts(struct usb_serial_port *port, int on) |
033a3fb9 | 596 | { |
033a3fb9 KL |
597 | struct usb_serial *serial = port->serial; |
598 | struct sierra_port_private *portdata; | |
599 | ||
033a3fb9 | 600 | portdata = usb_get_serial_port_data(port); |
335f8514 AC |
601 | portdata->rts_state = on; |
602 | portdata->dtr_state = on; | |
033a3fb9 KL |
603 | |
604 | if (serial->dev) { | |
e33fe4d8 ON |
605 | mutex_lock(&serial->disc_mutex); |
606 | if (!serial->disconnected) | |
335f8514 | 607 | sierra_send_setup(port); |
e33fe4d8 | 608 | mutex_unlock(&serial->disc_mutex); |
335f8514 AC |
609 | } |
610 | } | |
611 | ||
612 | static void sierra_close(struct usb_serial_port *port) | |
613 | { | |
614 | int i; | |
615 | struct usb_serial *serial = port->serial; | |
616 | struct sierra_port_private *portdata; | |
033a3fb9 | 617 | |
335f8514 AC |
618 | dev_dbg(&port->dev, "%s", __func__); |
619 | portdata = usb_get_serial_port_data(port); | |
620 | ||
621 | if (serial->dev) { | |
033a3fb9 KL |
622 | /* Stop reading/writing urbs */ |
623 | for (i = 0; i < N_IN_URB; i++) | |
9e85c5f6 | 624 | usb_kill_urb(portdata->in_urbs[i]); |
033a3fb9 | 625 | } |
9e85c5f6 | 626 | usb_kill_urb(port->interrupt_in_urb); |
033a3fb9 KL |
627 | } |
628 | ||
033a3fb9 KL |
629 | static int sierra_startup(struct usb_serial *serial) |
630 | { | |
033a3fb9 KL |
631 | struct usb_serial_port *port; |
632 | struct sierra_port_private *portdata; | |
9e85c5f6 GKH |
633 | struct urb *urb; |
634 | int i; | |
635 | int j; | |
033a3fb9 | 636 | |
7384a922 | 637 | dev_dbg(&serial->dev->dev, "%s", __func__); |
033a3fb9 | 638 | |
228426ed | 639 | /* Set Device mode to D0 */ |
112225b1 KL |
640 | sierra_set_power_state(serial->dev, 0x0000); |
641 | ||
228426ed KL |
642 | /* Check NMEA and set */ |
643 | if (nmea) | |
644 | sierra_vsc_set_nmea(serial->dev, 1); | |
645 | ||
033a3fb9 KL |
646 | /* Now setup per port private data */ |
647 | for (i = 0; i < serial->num_ports; i++) { | |
648 | port = serial->port[i]; | |
649 | portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); | |
650 | if (!portdata) { | |
7384a922 KL |
651 | dev_dbg(&port->dev, "%s: kmalloc for " |
652 | "sierra_port_private (%d) failed!.", | |
653 | __func__, i); | |
17c23274 | 654 | return -ENOMEM; |
033a3fb9 | 655 | } |
17c23274 | 656 | spin_lock_init(&portdata->lock); |
4f4f9c53 ON |
657 | for (j = 0; j < N_IN_URB; j++) { |
658 | portdata->in_buffer[j] = kmalloc(IN_BUFLEN, GFP_KERNEL); | |
659 | if (!portdata->in_buffer[j]) { | |
660 | for (--j; j >= 0; j--) | |
661 | kfree(portdata->in_buffer[j]); | |
662 | kfree(portdata); | |
663 | return -ENOMEM; | |
664 | } | |
665 | } | |
033a3fb9 KL |
666 | |
667 | usb_set_serial_port_data(port, portdata); | |
668 | ||
9e85c5f6 GKH |
669 | /* initialize the in urbs */ |
670 | for (j = 0; j < N_IN_URB; ++j) { | |
671 | urb = usb_alloc_urb(0, GFP_KERNEL); | |
672 | if (urb == NULL) { | |
7384a922 KL |
673 | dev_dbg(&port->dev, "%s: alloc for in " |
674 | "port failed.", __func__); | |
9e85c5f6 GKH |
675 | continue; |
676 | } | |
677 | /* Fill URB using supplied data. */ | |
678 | usb_fill_bulk_urb(urb, serial->dev, | |
679 | usb_rcvbulkpipe(serial->dev, | |
680 | port->bulk_in_endpointAddress), | |
681 | portdata->in_buffer[j], IN_BUFLEN, | |
682 | sierra_indat_callback, port); | |
683 | portdata->in_urbs[j] = urb; | |
684 | } | |
033a3fb9 KL |
685 | } |
686 | ||
17c23274 | 687 | return 0; |
033a3fb9 KL |
688 | } |
689 | ||
690 | static void sierra_shutdown(struct usb_serial *serial) | |
691 | { | |
692 | int i, j; | |
693 | struct usb_serial_port *port; | |
694 | struct sierra_port_private *portdata; | |
695 | ||
7384a922 | 696 | dev_dbg(&serial->dev->dev, "%s", __func__); |
033a3fb9 | 697 | |
033a3fb9 KL |
698 | for (i = 0; i < serial->num_ports; ++i) { |
699 | port = serial->port[i]; | |
f094e4f3 GKH |
700 | if (!port) |
701 | continue; | |
033a3fb9 | 702 | portdata = usb_get_serial_port_data(port); |
f094e4f3 GKH |
703 | if (!portdata) |
704 | continue; | |
033a3fb9 KL |
705 | |
706 | for (j = 0; j < N_IN_URB; j++) { | |
9e85c5f6 GKH |
707 | usb_kill_urb(portdata->in_urbs[j]); |
708 | usb_free_urb(portdata->in_urbs[j]); | |
4f4f9c53 | 709 | kfree(portdata->in_buffer[j]); |
033a3fb9 | 710 | } |
9e85c5f6 GKH |
711 | kfree(portdata); |
712 | usb_set_serial_port_data(port, NULL); | |
033a3fb9 KL |
713 | } |
714 | } | |
715 | ||
228426ed | 716 | static struct usb_serial_driver sierra_device = { |
964ee1de GKH |
717 | .driver = { |
718 | .owner = THIS_MODULE, | |
4e0fee82 | 719 | .name = "sierra", |
964ee1de | 720 | }, |
228426ed KL |
721 | .description = "Sierra USB modem", |
722 | .id_table = id_table, | |
d9b1b787 | 723 | .usb_driver = &sierra_driver, |
228426ed KL |
724 | .calc_num_ports = sierra_calc_num_ports, |
725 | .probe = sierra_probe, | |
964ee1de GKH |
726 | .open = sierra_open, |
727 | .close = sierra_close, | |
335f8514 | 728 | .dtr_rts = sierra_dtr_rts, |
964ee1de GKH |
729 | .write = sierra_write, |
730 | .write_room = sierra_write_room, | |
964ee1de | 731 | .set_termios = sierra_set_termios, |
964ee1de GKH |
732 | .tiocmget = sierra_tiocmget, |
733 | .tiocmset = sierra_tiocmset, | |
734 | .attach = sierra_startup, | |
735 | .shutdown = sierra_shutdown, | |
736 | .read_int_callback = sierra_instat_callback, | |
737 | }; | |
738 | ||
739 | /* Functions used by new usb-serial code. */ | |
740 | static int __init sierra_init(void) | |
741 | { | |
742 | int retval; | |
228426ed | 743 | retval = usb_serial_register(&sierra_device); |
964ee1de | 744 | if (retval) |
228426ed | 745 | goto failed_device_register; |
964ee1de GKH |
746 | |
747 | ||
748 | retval = usb_register(&sierra_driver); | |
749 | if (retval) | |
750 | goto failed_driver_register; | |
751 | ||
c197a8db GKH |
752 | printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" |
753 | DRIVER_DESC "\n"); | |
964ee1de GKH |
754 | |
755 | return 0; | |
756 | ||
757 | failed_driver_register: | |
228426ed KL |
758 | usb_serial_deregister(&sierra_device); |
759 | failed_device_register: | |
964ee1de GKH |
760 | return retval; |
761 | } | |
762 | ||
763 | static void __exit sierra_exit(void) | |
764 | { | |
9660ea36 | 765 | usb_deregister(&sierra_driver); |
228426ed | 766 | usb_serial_deregister(&sierra_device); |
964ee1de GKH |
767 | } |
768 | ||
769 | module_init(sierra_init); | |
770 | module_exit(sierra_exit); | |
771 | ||
033a3fb9 KL |
772 | MODULE_AUTHOR(DRIVER_AUTHOR); |
773 | MODULE_DESCRIPTION(DRIVER_DESC); | |
774 | MODULE_VERSION(DRIVER_VERSION); | |
69de51fd | 775 | MODULE_LICENSE("GPL"); |
033a3fb9 | 776 | |
4e0fee82 | 777 | module_param(nmea, bool, S_IRUGO | S_IWUSR); |
228426ed KL |
778 | MODULE_PARM_DESC(nmea, "NMEA streaming"); |
779 | ||
033a3fb9 KL |
780 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
781 | MODULE_PARM_DESC(debug, "Debug messages"); |