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 */ | |
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 | ||
95da310e AC |
243 | static int sierra_send_setup(struct tty_struct *tty, |
244 | struct usb_serial_port *port) | |
69de51fd | 245 | { |
964ee1de GKH |
246 | struct usb_serial *serial = port->serial; |
247 | struct sierra_port_private *portdata; | |
228426ed | 248 | __u16 interface = 0; |
033a3fb9 | 249 | |
7384a922 | 250 | dev_dbg(&port->dev, "%s", __func__); |
033a3fb9 | 251 | |
964ee1de | 252 | portdata = usb_get_serial_port_data(port); |
033a3fb9 | 253 | |
95da310e | 254 | if (tty) { |
964ee1de GKH |
255 | int val = 0; |
256 | if (portdata->dtr_state) | |
257 | val |= 0x01; | |
258 | if (portdata->rts_state) | |
259 | val |= 0x02; | |
033a3fb9 | 260 | |
e3173b22 KL |
261 | /* If composite device then properly report interface */ |
262 | if (serial->num_ports == 1) | |
263 | interface = sierra_calc_interface(serial); | |
264 | ||
265 | /* Otherwise the need to do non-composite mapping */ | |
266 | else { | |
267 | if (port->bulk_out_endpointAddress == 2) | |
268 | interface = 0; | |
269 | else if (port->bulk_out_endpointAddress == 4) | |
270 | interface = 1; | |
271 | else if (port->bulk_out_endpointAddress == 5) | |
272 | interface = 2; | |
273 | } | |
228426ed | 274 | |
964ee1de GKH |
275 | return usb_control_msg(serial->dev, |
276 | usb_rcvctrlpipe(serial->dev, 0), | |
228426ed KL |
277 | 0x22, 0x21, val, interface, |
278 | NULL, 0, USB_CTRL_SET_TIMEOUT); | |
964ee1de | 279 | } |
69de51fd | 280 | |
964ee1de | 281 | return 0; |
69de51fd KL |
282 | } |
283 | ||
95da310e AC |
284 | static void sierra_set_termios(struct tty_struct *tty, |
285 | struct usb_serial_port *port, struct ktermios *old_termios) | |
033a3fb9 | 286 | { |
7384a922 | 287 | dev_dbg(&port->dev, "%s", __func__); |
95da310e AC |
288 | tty_termios_copy_hw(tty->termios, old_termios); |
289 | sierra_send_setup(tty, port); | |
033a3fb9 KL |
290 | } |
291 | ||
95da310e | 292 | static int sierra_tiocmget(struct tty_struct *tty, struct file *file) |
033a3fb9 | 293 | { |
95da310e | 294 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
295 | unsigned int value; |
296 | struct sierra_port_private *portdata; | |
297 | ||
7384a922 | 298 | dev_dbg(&port->dev, "%s", __func__); |
033a3fb9 KL |
299 | portdata = usb_get_serial_port_data(port); |
300 | ||
301 | value = ((portdata->rts_state) ? TIOCM_RTS : 0) | | |
302 | ((portdata->dtr_state) ? TIOCM_DTR : 0) | | |
303 | ((portdata->cts_state) ? TIOCM_CTS : 0) | | |
304 | ((portdata->dsr_state) ? TIOCM_DSR : 0) | | |
305 | ((portdata->dcd_state) ? TIOCM_CAR : 0) | | |
306 | ((portdata->ri_state) ? TIOCM_RNG : 0); | |
307 | ||
308 | return value; | |
309 | } | |
310 | ||
95da310e | 311 | static int sierra_tiocmset(struct tty_struct *tty, struct file *file, |
033a3fb9 KL |
312 | unsigned int set, unsigned int clear) |
313 | { | |
95da310e | 314 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
315 | struct sierra_port_private *portdata; |
316 | ||
317 | portdata = usb_get_serial_port_data(port); | |
318 | ||
319 | if (set & TIOCM_RTS) | |
320 | portdata->rts_state = 1; | |
321 | if (set & TIOCM_DTR) | |
322 | portdata->dtr_state = 1; | |
323 | ||
324 | if (clear & TIOCM_RTS) | |
325 | portdata->rts_state = 0; | |
326 | if (clear & TIOCM_DTR) | |
327 | portdata->dtr_state = 0; | |
95da310e | 328 | return sierra_send_setup(tty, port); |
033a3fb9 KL |
329 | } |
330 | ||
17c23274 GKH |
331 | static void sierra_outdat_callback(struct urb *urb) |
332 | { | |
333 | struct usb_serial_port *port = urb->context; | |
334 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
335 | int status = urb->status; | |
336 | unsigned long flags; | |
337 | ||
7384a922 | 338 | dev_dbg(&port->dev, "%s - port %d", __func__, port->number); |
17c23274 GKH |
339 | |
340 | /* free up the transfer buffer, as usb_free_urb() does not do this */ | |
341 | kfree(urb->transfer_buffer); | |
342 | ||
343 | if (status) | |
7384a922 KL |
344 | dev_dbg(&port->dev, "%s - nonzero write bulk status " |
345 | "received: %d", __func__, status); | |
17c23274 GKH |
346 | |
347 | spin_lock_irqsave(&portdata->lock, flags); | |
348 | --portdata->outstanding_urbs; | |
349 | spin_unlock_irqrestore(&portdata->lock, flags); | |
350 | ||
351 | usb_serial_port_softint(port); | |
352 | } | |
353 | ||
033a3fb9 | 354 | /* Write */ |
95da310e AC |
355 | static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port, |
356 | const unsigned char *buf, int count) | |
033a3fb9 | 357 | { |
17c23274 GKH |
358 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
359 | struct usb_serial *serial = port->serial; | |
360 | unsigned long flags; | |
361 | unsigned char *buffer; | |
362 | struct urb *urb; | |
363 | int status; | |
033a3fb9 KL |
364 | |
365 | portdata = usb_get_serial_port_data(port); | |
366 | ||
7384a922 | 367 | dev_dbg(&port->dev, "%s: write (%d chars)", __func__, count); |
033a3fb9 | 368 | |
17c23274 GKH |
369 | spin_lock_irqsave(&portdata->lock, flags); |
370 | if (portdata->outstanding_urbs > N_OUT_URB) { | |
371 | spin_unlock_irqrestore(&portdata->lock, flags); | |
7384a922 | 372 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 GKH |
373 | return 0; |
374 | } | |
375 | portdata->outstanding_urbs++; | |
376 | spin_unlock_irqrestore(&portdata->lock, flags); | |
377 | ||
378 | buffer = kmalloc(count, GFP_ATOMIC); | |
379 | if (!buffer) { | |
380 | dev_err(&port->dev, "out of memory\n"); | |
381 | count = -ENOMEM; | |
382 | goto error_no_buffer; | |
383 | } | |
033a3fb9 | 384 | |
17c23274 GKH |
385 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
386 | if (!urb) { | |
387 | dev_err(&port->dev, "no more free urbs\n"); | |
388 | count = -ENOMEM; | |
389 | goto error_no_urb; | |
390 | } | |
033a3fb9 | 391 | |
17c23274 | 392 | memcpy(buffer, buf, count); |
033a3fb9 | 393 | |
441b62c1 | 394 | usb_serial_debug_data(debug, &port->dev, __func__, count, buffer); |
17c23274 GKH |
395 | |
396 | usb_fill_bulk_urb(urb, serial->dev, | |
397 | usb_sndbulkpipe(serial->dev, | |
398 | port->bulk_out_endpointAddress), | |
399 | buffer, count, sierra_outdat_callback, port); | |
400 | ||
401 | /* send it down the pipe */ | |
402 | status = usb_submit_urb(urb, GFP_ATOMIC); | |
403 | if (status) { | |
404 | dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " | |
441b62c1 | 405 | "with status = %d\n", __func__, status); |
17c23274 GKH |
406 | count = status; |
407 | goto error; | |
033a3fb9 KL |
408 | } |
409 | ||
17c23274 GKH |
410 | /* we are done with this urb, so let the host driver |
411 | * really free it when it is finished with it */ | |
412 | usb_free_urb(urb); | |
413 | ||
414 | return count; | |
415 | error: | |
416 | usb_free_urb(urb); | |
417 | error_no_urb: | |
418 | kfree(buffer); | |
419 | error_no_buffer: | |
420 | spin_lock_irqsave(&portdata->lock, flags); | |
421 | --portdata->outstanding_urbs; | |
422 | spin_unlock_irqrestore(&portdata->lock, flags); | |
033a3fb9 KL |
423 | return count; |
424 | } | |
425 | ||
426 | static void sierra_indat_callback(struct urb *urb) | |
427 | { | |
428 | int err; | |
429 | int endpoint; | |
430 | struct usb_serial_port *port; | |
431 | struct tty_struct *tty; | |
432 | unsigned char *data = urb->transfer_buffer; | |
17dd2215 | 433 | int status = urb->status; |
033a3fb9 | 434 | |
441b62c1 | 435 | dbg("%s: %p", __func__, urb); |
033a3fb9 KL |
436 | |
437 | endpoint = usb_pipeendpoint(urb->pipe); | |
cdc97792 | 438 | port = urb->context; |
033a3fb9 | 439 | |
17dd2215 | 440 | if (status) { |
7384a922 KL |
441 | dev_dbg(&port->dev, "%s: nonzero status: %d on" |
442 | " endpoint %02x.", __func__, status, endpoint); | |
033a3fb9 | 443 | } else { |
033a3fb9 | 444 | if (urb->actual_length) { |
4a90f09b | 445 | tty = tty_port_tty_get(&port->port); |
033a3fb9 KL |
446 | tty_buffer_request_room(tty, urb->actual_length); |
447 | tty_insert_flip_string(tty, data, urb->actual_length); | |
448 | tty_flip_buffer_push(tty); | |
4a90f09b AC |
449 | tty_kref_put(tty); |
450 | } else | |
7384a922 KL |
451 | dev_dbg(&port->dev, "%s: empty read urb" |
452 | " received", __func__); | |
033a3fb9 KL |
453 | |
454 | /* Resubmit urb so we continue receiving */ | |
95da310e | 455 | if (port->port.count && status != -ESHUTDOWN) { |
033a3fb9 KL |
456 | err = usb_submit_urb(urb, GFP_ATOMIC); |
457 | if (err) | |
17c23274 | 458 | dev_err(&port->dev, "resubmit read urb failed." |
898eb71c | 459 | "(%d)\n", err); |
033a3fb9 KL |
460 | } |
461 | } | |
462 | return; | |
463 | } | |
464 | ||
033a3fb9 KL |
465 | static void sierra_instat_callback(struct urb *urb) |
466 | { | |
467 | int err; | |
17dd2215 | 468 | int status = urb->status; |
cdc97792 | 469 | struct usb_serial_port *port = urb->context; |
033a3fb9 KL |
470 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
471 | struct usb_serial *serial = port->serial; | |
472 | ||
7384a922 KL |
473 | dev_dbg(&port->dev, "%s", __func__); |
474 | dev_dbg(&port->dev, "%s: urb %p port %p has data %p", __func__, | |
475 | urb, port, portdata); | |
033a3fb9 | 476 | |
17dd2215 | 477 | if (status == 0) { |
033a3fb9 KL |
478 | struct usb_ctrlrequest *req_pkt = |
479 | (struct usb_ctrlrequest *)urb->transfer_buffer; | |
480 | ||
481 | if (!req_pkt) { | |
7384a922 KL |
482 | dev_dbg(&port->dev, "%s: NULL req_pkt\n", |
483 | __func__); | |
033a3fb9 KL |
484 | return; |
485 | } | |
486 | if ((req_pkt->bRequestType == 0xA1) && | |
487 | (req_pkt->bRequest == 0x20)) { | |
488 | int old_dcd_state; | |
489 | unsigned char signals = *((unsigned char *) | |
490 | urb->transfer_buffer + | |
491 | sizeof(struct usb_ctrlrequest)); | |
4a90f09b | 492 | struct tty_struct *tty; |
033a3fb9 | 493 | |
7384a922 KL |
494 | dev_dbg(&port->dev, "%s: signal x%x", __func__, |
495 | signals); | |
033a3fb9 KL |
496 | |
497 | old_dcd_state = portdata->dcd_state; | |
498 | portdata->cts_state = 1; | |
499 | portdata->dcd_state = ((signals & 0x01) ? 1 : 0); | |
500 | portdata->dsr_state = ((signals & 0x02) ? 1 : 0); | |
501 | portdata->ri_state = ((signals & 0x08) ? 1 : 0); | |
502 | ||
4a90f09b AC |
503 | tty = tty_port_tty_get(&port->port); |
504 | if (tty && !C_CLOCAL(tty) && | |
033a3fb9 | 505 | old_dcd_state && !portdata->dcd_state) |
4a90f09b AC |
506 | tty_hangup(tty); |
507 | tty_kref_put(tty); | |
033a3fb9 | 508 | } else { |
7384a922 KL |
509 | dev_dbg(&port->dev, "%s: type %x req %x", |
510 | __func__, req_pkt->bRequestType, | |
511 | req_pkt->bRequest); | |
033a3fb9 KL |
512 | } |
513 | } else | |
7384a922 | 514 | dev_dbg(&port->dev, "%s: error %d", __func__, status); |
033a3fb9 KL |
515 | |
516 | /* Resubmit urb so we continue receiving IRQ data */ | |
17dd2215 | 517 | if (status != -ESHUTDOWN) { |
033a3fb9 KL |
518 | urb->dev = serial->dev; |
519 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
520 | if (err) | |
7384a922 KL |
521 | dev_dbg(&port->dev, "%s: resubmit intr urb " |
522 | "failed. (%d)", __func__, err); | |
033a3fb9 KL |
523 | } |
524 | } | |
525 | ||
95da310e | 526 | static int sierra_write_room(struct tty_struct *tty) |
033a3fb9 | 527 | { |
95da310e | 528 | struct usb_serial_port *port = tty->driver_data; |
17c23274 GKH |
529 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
530 | unsigned long flags; | |
033a3fb9 | 531 | |
7384a922 | 532 | dev_dbg(&port->dev, "%s - port %d", __func__, port->number); |
033a3fb9 | 533 | |
17c23274 GKH |
534 | /* try to give a good number back based on if we have any free urbs at |
535 | * this point in time */ | |
536 | spin_lock_irqsave(&portdata->lock, flags); | |
537 | if (portdata->outstanding_urbs > N_OUT_URB * 2 / 3) { | |
538 | spin_unlock_irqrestore(&portdata->lock, flags); | |
7384a922 | 539 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 | 540 | return 0; |
033a3fb9 | 541 | } |
17c23274 | 542 | spin_unlock_irqrestore(&portdata->lock, flags); |
033a3fb9 | 543 | |
17c23274 | 544 | return 2048; |
033a3fb9 KL |
545 | } |
546 | ||
95da310e AC |
547 | static int sierra_open(struct tty_struct *tty, |
548 | struct usb_serial_port *port, struct file *filp) | |
033a3fb9 KL |
549 | { |
550 | struct sierra_port_private *portdata; | |
551 | struct usb_serial *serial = port->serial; | |
9e85c5f6 | 552 | int i; |
033a3fb9 | 553 | struct urb *urb; |
e43062dd | 554 | int result; |
033a3fb9 KL |
555 | |
556 | portdata = usb_get_serial_port_data(port); | |
557 | ||
7384a922 | 558 | dev_dbg(&port->dev, "%s", __func__); |
033a3fb9 KL |
559 | |
560 | /* Set some sane defaults */ | |
561 | portdata->rts_state = 1; | |
562 | portdata->dtr_state = 1; | |
563 | ||
564 | /* Reset low level data toggle and start reading from endpoints */ | |
565 | for (i = 0; i < N_IN_URB; i++) { | |
566 | urb = portdata->in_urbs[i]; | |
9e85c5f6 | 567 | if (!urb) |
033a3fb9 KL |
568 | continue; |
569 | if (urb->dev != serial->dev) { | |
7384a922 KL |
570 | dev_dbg(&port->dev, "%s: dev %p != %p", |
571 | __func__, urb->dev, serial->dev); | |
033a3fb9 KL |
572 | continue; |
573 | } | |
574 | ||
575 | /* | |
576 | * make sure endpoint data toggle is synchronized with the | |
577 | * device | |
578 | */ | |
579 | usb_clear_halt(urb->dev, urb->pipe); | |
580 | ||
9e85c5f6 GKH |
581 | result = usb_submit_urb(urb, GFP_KERNEL); |
582 | if (result) { | |
898eb71c | 583 | dev_err(&port->dev, "submit urb %d failed (%d) %d\n", |
9e85c5f6 | 584 | i, result, urb->transfer_buffer_length); |
033a3fb9 KL |
585 | } |
586 | } | |
587 | ||
95da310e AC |
588 | if (tty) |
589 | tty->low_latency = 1; | |
033a3fb9 | 590 | |
95da310e | 591 | sierra_send_setup(tty, port); |
033a3fb9 | 592 | |
9e85c5f6 GKH |
593 | /* start up the interrupt endpoint if we have one */ |
594 | if (port->interrupt_in_urb) { | |
595 | result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); | |
596 | if (result) | |
898eb71c | 597 | dev_err(&port->dev, "submit irq_in urb failed %d\n", |
9e85c5f6 GKH |
598 | result); |
599 | } | |
600 | return 0; | |
033a3fb9 KL |
601 | } |
602 | ||
95da310e AC |
603 | static void sierra_close(struct tty_struct *tty, |
604 | struct usb_serial_port *port, struct file *filp) | |
033a3fb9 KL |
605 | { |
606 | int i; | |
607 | struct usb_serial *serial = port->serial; | |
608 | struct sierra_port_private *portdata; | |
609 | ||
7384a922 | 610 | dev_dbg(&port->dev, "%s", __func__); |
033a3fb9 KL |
611 | portdata = usb_get_serial_port_data(port); |
612 | ||
613 | portdata->rts_state = 0; | |
614 | portdata->dtr_state = 0; | |
615 | ||
616 | if (serial->dev) { | |
e33fe4d8 ON |
617 | mutex_lock(&serial->disc_mutex); |
618 | if (!serial->disconnected) | |
95da310e | 619 | sierra_send_setup(tty, port); |
e33fe4d8 | 620 | mutex_unlock(&serial->disc_mutex); |
033a3fb9 KL |
621 | |
622 | /* Stop reading/writing urbs */ | |
623 | for (i = 0; i < N_IN_URB; i++) | |
9e85c5f6 | 624 | usb_kill_urb(portdata->in_urbs[i]); |
033a3fb9 KL |
625 | } |
626 | ||
9e85c5f6 | 627 | usb_kill_urb(port->interrupt_in_urb); |
4a90f09b | 628 | tty_port_tty_set(&port->port, NULL); |
033a3fb9 KL |
629 | } |
630 | ||
033a3fb9 KL |
631 | static int sierra_startup(struct usb_serial *serial) |
632 | { | |
033a3fb9 KL |
633 | struct usb_serial_port *port; |
634 | struct sierra_port_private *portdata; | |
9e85c5f6 GKH |
635 | struct urb *urb; |
636 | int i; | |
637 | int j; | |
033a3fb9 | 638 | |
7384a922 | 639 | dev_dbg(&serial->dev->dev, "%s", __func__); |
033a3fb9 | 640 | |
228426ed | 641 | /* Set Device mode to D0 */ |
112225b1 KL |
642 | sierra_set_power_state(serial->dev, 0x0000); |
643 | ||
228426ed KL |
644 | /* Check NMEA and set */ |
645 | if (nmea) | |
646 | sierra_vsc_set_nmea(serial->dev, 1); | |
647 | ||
033a3fb9 KL |
648 | /* Now setup per port private data */ |
649 | for (i = 0; i < serial->num_ports; i++) { | |
650 | port = serial->port[i]; | |
651 | portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); | |
652 | if (!portdata) { | |
7384a922 KL |
653 | dev_dbg(&port->dev, "%s: kmalloc for " |
654 | "sierra_port_private (%d) failed!.", | |
655 | __func__, i); | |
17c23274 | 656 | return -ENOMEM; |
033a3fb9 | 657 | } |
17c23274 | 658 | spin_lock_init(&portdata->lock); |
4f4f9c53 ON |
659 | for (j = 0; j < N_IN_URB; j++) { |
660 | portdata->in_buffer[j] = kmalloc(IN_BUFLEN, GFP_KERNEL); | |
661 | if (!portdata->in_buffer[j]) { | |
662 | for (--j; j >= 0; j--) | |
663 | kfree(portdata->in_buffer[j]); | |
664 | kfree(portdata); | |
665 | return -ENOMEM; | |
666 | } | |
667 | } | |
033a3fb9 KL |
668 | |
669 | usb_set_serial_port_data(port, portdata); | |
670 | ||
9e85c5f6 GKH |
671 | /* initialize the in urbs */ |
672 | for (j = 0; j < N_IN_URB; ++j) { | |
673 | urb = usb_alloc_urb(0, GFP_KERNEL); | |
674 | if (urb == NULL) { | |
7384a922 KL |
675 | dev_dbg(&port->dev, "%s: alloc for in " |
676 | "port failed.", __func__); | |
9e85c5f6 GKH |
677 | continue; |
678 | } | |
679 | /* Fill URB using supplied data. */ | |
680 | usb_fill_bulk_urb(urb, serial->dev, | |
681 | usb_rcvbulkpipe(serial->dev, | |
682 | port->bulk_in_endpointAddress), | |
683 | portdata->in_buffer[j], IN_BUFLEN, | |
684 | sierra_indat_callback, port); | |
685 | portdata->in_urbs[j] = urb; | |
686 | } | |
033a3fb9 KL |
687 | } |
688 | ||
17c23274 | 689 | return 0; |
033a3fb9 KL |
690 | } |
691 | ||
692 | static void sierra_shutdown(struct usb_serial *serial) | |
693 | { | |
694 | int i, j; | |
695 | struct usb_serial_port *port; | |
696 | struct sierra_port_private *portdata; | |
697 | ||
7384a922 | 698 | dev_dbg(&serial->dev->dev, "%s", __func__); |
033a3fb9 | 699 | |
033a3fb9 KL |
700 | for (i = 0; i < serial->num_ports; ++i) { |
701 | port = serial->port[i]; | |
f094e4f3 GKH |
702 | if (!port) |
703 | continue; | |
033a3fb9 | 704 | portdata = usb_get_serial_port_data(port); |
f094e4f3 GKH |
705 | if (!portdata) |
706 | continue; | |
033a3fb9 KL |
707 | |
708 | for (j = 0; j < N_IN_URB; j++) { | |
9e85c5f6 GKH |
709 | usb_kill_urb(portdata->in_urbs[j]); |
710 | usb_free_urb(portdata->in_urbs[j]); | |
4f4f9c53 | 711 | kfree(portdata->in_buffer[j]); |
033a3fb9 | 712 | } |
9e85c5f6 GKH |
713 | kfree(portdata); |
714 | usb_set_serial_port_data(port, NULL); | |
033a3fb9 KL |
715 | } |
716 | } | |
717 | ||
228426ed | 718 | static struct usb_serial_driver sierra_device = { |
964ee1de GKH |
719 | .driver = { |
720 | .owner = THIS_MODULE, | |
4e0fee82 | 721 | .name = "sierra", |
964ee1de | 722 | }, |
228426ed KL |
723 | .description = "Sierra USB modem", |
724 | .id_table = id_table, | |
d9b1b787 | 725 | .usb_driver = &sierra_driver, |
228426ed KL |
726 | .calc_num_ports = sierra_calc_num_ports, |
727 | .probe = sierra_probe, | |
964ee1de GKH |
728 | .open = sierra_open, |
729 | .close = sierra_close, | |
730 | .write = sierra_write, | |
731 | .write_room = sierra_write_room, | |
964ee1de | 732 | .set_termios = sierra_set_termios, |
964ee1de GKH |
733 | .tiocmget = sierra_tiocmget, |
734 | .tiocmset = sierra_tiocmset, | |
735 | .attach = sierra_startup, | |
736 | .shutdown = sierra_shutdown, | |
737 | .read_int_callback = sierra_instat_callback, | |
738 | }; | |
739 | ||
740 | /* Functions used by new usb-serial code. */ | |
741 | static int __init sierra_init(void) | |
742 | { | |
743 | int retval; | |
228426ed | 744 | retval = usb_serial_register(&sierra_device); |
964ee1de | 745 | if (retval) |
228426ed | 746 | goto failed_device_register; |
964ee1de GKH |
747 | |
748 | ||
749 | retval = usb_register(&sierra_driver); | |
750 | if (retval) | |
751 | goto failed_driver_register; | |
752 | ||
c197a8db GKH |
753 | printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" |
754 | DRIVER_DESC "\n"); | |
964ee1de GKH |
755 | |
756 | return 0; | |
757 | ||
758 | failed_driver_register: | |
228426ed KL |
759 | usb_serial_deregister(&sierra_device); |
760 | failed_device_register: | |
964ee1de GKH |
761 | return retval; |
762 | } | |
763 | ||
764 | static void __exit sierra_exit(void) | |
765 | { | |
9660ea36 | 766 | usb_deregister(&sierra_driver); |
228426ed | 767 | usb_serial_deregister(&sierra_device); |
964ee1de GKH |
768 | } |
769 | ||
770 | module_init(sierra_init); | |
771 | module_exit(sierra_exit); | |
772 | ||
033a3fb9 KL |
773 | MODULE_AUTHOR(DRIVER_AUTHOR); |
774 | MODULE_DESCRIPTION(DRIVER_DESC); | |
775 | MODULE_VERSION(DRIVER_VERSION); | |
69de51fd | 776 | MODULE_LICENSE("GPL"); |
033a3fb9 | 777 | |
4e0fee82 | 778 | module_param(nmea, bool, S_IRUGO | S_IWUSR); |
228426ed KL |
779 | MODULE_PARM_DESC(nmea, "NMEA streaming"); |
780 | ||
033a3fb9 KL |
781 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
782 | MODULE_PARM_DESC(debug, "Debug messages"); |