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Commit | Line | Data |
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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 | ||
0585e4df | 17 | #define DRIVER_VERSION "v.1.2.13a" |
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 | 33 | #define SWIMS_USB_REQUEST_SetMode 0x0B |
0585e4df | 34 | #define SWIMS_USB_REQUEST_GetSwocInfo 0x0A |
112225b1 KL |
35 | #define SWIMS_SET_MODE_Modem 0x0001 |
36 | ||
37 | /* per port private data */ | |
38 | #define N_IN_URB 4 | |
39 | #define N_OUT_URB 4 | |
40 | #define IN_BUFLEN 4096 | |
41 | ||
42 | static int debug; | |
228426ed | 43 | static int nmea; |
112225b1 | 44 | |
82a24e68 | 45 | static int sierra_set_power_state(struct usb_device *udev, __u16 swiState) |
112225b1 KL |
46 | { |
47 | int result; | |
4e0fee82 | 48 | dev_dbg(&udev->dev, "%s", __func__); |
112225b1 | 49 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
228426ed | 50 | SWIMS_USB_REQUEST_SetPower, /* __u8 request */ |
f3564de4 | 51 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
52 | swiState, /* __u16 value */ |
53 | 0, /* __u16 index */ | |
54 | NULL, /* void *data */ | |
55 | 0, /* __u16 size */ | |
56 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
112225b1 KL |
57 | return result; |
58 | } | |
59 | ||
228426ed | 60 | static int sierra_vsc_set_nmea(struct usb_device *udev, __u16 enable) |
112225b1 KL |
61 | { |
62 | int result; | |
4e0fee82 | 63 | dev_dbg(&udev->dev, "%s", __func__); |
228426ed KL |
64 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
65 | SWIMS_USB_REQUEST_SetNmea, /* __u8 request */ | |
f3564de4 | 66 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
67 | enable, /* __u16 value */ |
68 | 0x0000, /* __u16 index */ | |
69 | NULL, /* void *data */ | |
70 | 0, /* __u16 size */ | |
71 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
72 | return result; | |
73 | } | |
74 | ||
75 | static int sierra_calc_num_ports(struct usb_serial *serial) | |
76 | { | |
77 | int result; | |
78 | int *num_ports = usb_get_serial_data(serial); | |
4e0fee82 | 79 | dev_dbg(&serial->dev->dev, "%s", __func__); |
228426ed KL |
80 | |
81 | result = *num_ports; | |
82 | ||
83 | if (result) { | |
84 | kfree(num_ports); | |
85 | usb_set_serial_data(serial, NULL); | |
86 | } | |
87 | ||
88 | return result; | |
89 | } | |
90 | ||
7106967e KL |
91 | static int sierra_calc_interface(struct usb_serial *serial) |
92 | { | |
4e0fee82 KL |
93 | int interface; |
94 | struct usb_interface *p_interface; | |
95 | struct usb_host_interface *p_host_interface; | |
96 | dev_dbg(&serial->dev->dev, "%s", __func__); | |
7106967e | 97 | |
4e0fee82 KL |
98 | /* Get the interface structure pointer from the serial struct */ |
99 | p_interface = serial->interface; | |
7106967e | 100 | |
4e0fee82 KL |
101 | /* Get a pointer to the host interface structure */ |
102 | p_host_interface = p_interface->cur_altsetting; | |
7106967e | 103 | |
4e0fee82 KL |
104 | /* read the interface descriptor for this active altsetting |
105 | * to find out the interface number we are on | |
106 | */ | |
107 | interface = p_host_interface->desc.bInterfaceNumber; | |
7106967e | 108 | |
4e0fee82 | 109 | return interface; |
7106967e KL |
110 | } |
111 | ||
228426ed KL |
112 | static int sierra_probe(struct usb_serial *serial, |
113 | const struct usb_device_id *id) | |
114 | { | |
115 | int result = 0; | |
112225b1 | 116 | struct usb_device *udev; |
228426ed KL |
117 | int *num_ports; |
118 | u8 ifnum; | |
e3173b22 KL |
119 | u8 numendpoints; |
120 | ||
4e0fee82 | 121 | dev_dbg(&serial->dev->dev, "%s", __func__); |
112225b1 | 122 | |
228426ed KL |
123 | num_ports = kmalloc(sizeof(*num_ports), GFP_KERNEL); |
124 | if (!num_ports) | |
125 | return -ENOMEM; | |
126 | ||
127 | ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber; | |
e3173b22 | 128 | numendpoints = serial->interface->cur_altsetting->desc.bNumEndpoints; |
228426ed | 129 | udev = serial->dev; |
112225b1 | 130 | |
e3173b22 KL |
131 | /* Figure out the interface number from the serial structure */ |
132 | ifnum = sierra_calc_interface(serial); | |
7106967e | 133 | |
e3173b22 KL |
134 | /* |
135 | * If this interface supports more than 1 alternate | |
136 | * select the 2nd one | |
137 | */ | |
138 | if (serial->interface->num_altsetting == 2) { | |
139 | dev_dbg(&udev->dev, "Selecting alt setting for interface %d\n", | |
140 | ifnum); | |
141 | /* We know the alternate setting is 1 for the MC8785 */ | |
142 | usb_set_interface(udev, ifnum, 1); | |
143 | } | |
7106967e | 144 | |
e3173b22 | 145 | /* Dummy interface present on some SKUs should be ignored */ |
0585e4df | 146 | if (ifnum == 0x99) |
228426ed | 147 | *num_ports = 0; |
e3173b22 KL |
148 | else if (numendpoints <= 3) |
149 | *num_ports = 1; | |
228426ed | 150 | else |
e3173b22 KL |
151 | *num_ports = (numendpoints-1)/2; |
152 | ||
228426ed KL |
153 | /* |
154 | * save off our num_ports info so that we can use it in the | |
155 | * calc_num_ports callback | |
156 | */ | |
157 | usb_set_serial_data(serial, (void *)num_ports); | |
112225b1 | 158 | |
228426ed | 159 | return result; |
112225b1 | 160 | } |
033a3fb9 | 161 | |
69de51fd | 162 | static struct usb_device_id id_table [] = { |
e43062dd | 163 | { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ |
69de51fd | 164 | { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ |
e43062dd | 165 | { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ |
9454c46a | 166 | { USB_DEVICE(0x0f30, 0x1b1d) }, /* Sierra Wireless MC5720 */ |
69de51fd | 167 | { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ |
4e0fee82 | 168 | { USB_DEVICE(0x1199, 0x0024) }, /* Sierra Wireless MC5727 */ |
b9e13ac3 | 169 | { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */ |
69de51fd | 170 | { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ |
e43062dd | 171 | { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ |
9454c46a | 172 | { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */ |
4e0fee82 KL |
173 | /* Sierra Wireless C597 */ |
174 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0023, 0xFF, 0xFF, 0xFF) }, | |
e3173b22 KL |
175 | /* Sierra Wireless Device */ |
176 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0025, 0xFF, 0xFF, 0xFF) }, | |
177 | { USB_DEVICE(0x1199, 0x0026) }, /* Sierra Wireless Device */ | |
9454c46a | 178 | |
69de51fd | 179 | { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ |
e43062dd | 180 | { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ |
69de51fd | 181 | { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ |
9454c46a | 182 | { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ |
4e0fee82 | 183 | { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 (Lenovo) */ |
7f170a63 | 184 | { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */ |
8f7f85e9 | 185 | { USB_DEVICE(0x03f0, 0x1e1d) }, /* HP hs2300 a.k.a MC8775 */ |
69de51fd | 186 | { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ |
7106967e | 187 | { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */ |
4e0fee82 KL |
188 | { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780 */ |
189 | { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781 */ | |
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 */ | |
207 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6892, 0xFF, 0xFF, 0xFF)}, | |
208 | ||
209 | { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */ | |
210 | { USB_DEVICE(0x0F3D, 0x0112) }, /* Airprime/Sierra PC 5220 */ | |
112225b1 | 211 | |
033a3fb9 KL |
212 | { } |
213 | }; | |
964ee1de | 214 | MODULE_DEVICE_TABLE(usb, id_table); |
033a3fb9 | 215 | |
69de51fd | 216 | static struct usb_driver sierra_driver = { |
033a3fb9 | 217 | .name = "sierra", |
228426ed | 218 | .probe = usb_serial_probe, |
033a3fb9 KL |
219 | .disconnect = usb_serial_disconnect, |
220 | .id_table = id_table, | |
964ee1de | 221 | .no_dynamic_id = 1, |
033a3fb9 KL |
222 | }; |
223 | ||
033a3fb9 | 224 | struct sierra_port_private { |
17c23274 GKH |
225 | spinlock_t lock; /* lock the structure */ |
226 | int outstanding_urbs; /* number of out urbs in flight */ | |
227 | ||
4f4f9c53 | 228 | /* Input endpoints and buffers for this port */ |
033a3fb9 | 229 | struct urb *in_urbs[N_IN_URB]; |
4f4f9c53 | 230 | char *in_buffer[N_IN_URB]; |
033a3fb9 KL |
231 | |
232 | /* Settings for the port */ | |
233 | int rts_state; /* Handshaking pins (outputs) */ | |
234 | int dtr_state; | |
235 | int cts_state; /* Handshaking pins (inputs) */ | |
236 | int dsr_state; | |
237 | int dcd_state; | |
238 | int ri_state; | |
033a3fb9 KL |
239 | }; |
240 | ||
95da310e AC |
241 | static int sierra_send_setup(struct tty_struct *tty, |
242 | struct usb_serial_port *port) | |
69de51fd | 243 | { |
964ee1de GKH |
244 | struct usb_serial *serial = port->serial; |
245 | struct sierra_port_private *portdata; | |
228426ed | 246 | __u16 interface = 0; |
033a3fb9 | 247 | |
441b62c1 | 248 | dbg("%s", __func__); |
033a3fb9 | 249 | |
964ee1de | 250 | portdata = usb_get_serial_port_data(port); |
033a3fb9 | 251 | |
95da310e | 252 | if (tty) { |
964ee1de GKH |
253 | int val = 0; |
254 | if (portdata->dtr_state) | |
255 | val |= 0x01; | |
256 | if (portdata->rts_state) | |
257 | val |= 0x02; | |
033a3fb9 | 258 | |
e3173b22 KL |
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; | |
271 | } | |
228426ed | 272 | |
964ee1de GKH |
273 | return usb_control_msg(serial->dev, |
274 | usb_rcvctrlpipe(serial->dev, 0), | |
228426ed KL |
275 | 0x22, 0x21, val, interface, |
276 | NULL, 0, USB_CTRL_SET_TIMEOUT); | |
964ee1de | 277 | } |
69de51fd | 278 | |
964ee1de | 279 | return 0; |
69de51fd KL |
280 | } |
281 | ||
95da310e AC |
282 | static void sierra_set_termios(struct tty_struct *tty, |
283 | struct usb_serial_port *port, struct ktermios *old_termios) | |
033a3fb9 | 284 | { |
441b62c1 | 285 | dbg("%s", __func__); |
95da310e AC |
286 | tty_termios_copy_hw(tty->termios, old_termios); |
287 | sierra_send_setup(tty, port); | |
033a3fb9 KL |
288 | } |
289 | ||
95da310e | 290 | static int sierra_tiocmget(struct tty_struct *tty, struct file *file) |
033a3fb9 | 291 | { |
95da310e | 292 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
293 | unsigned int value; |
294 | struct sierra_port_private *portdata; | |
295 | ||
296 | portdata = usb_get_serial_port_data(port); | |
297 | ||
298 | value = ((portdata->rts_state) ? TIOCM_RTS : 0) | | |
299 | ((portdata->dtr_state) ? TIOCM_DTR : 0) | | |
300 | ((portdata->cts_state) ? TIOCM_CTS : 0) | | |
301 | ((portdata->dsr_state) ? TIOCM_DSR : 0) | | |
302 | ((portdata->dcd_state) ? TIOCM_CAR : 0) | | |
303 | ((portdata->ri_state) ? TIOCM_RNG : 0); | |
304 | ||
305 | return value; | |
306 | } | |
307 | ||
95da310e | 308 | static int sierra_tiocmset(struct tty_struct *tty, struct file *file, |
033a3fb9 KL |
309 | unsigned int set, unsigned int clear) |
310 | { | |
95da310e | 311 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
312 | struct sierra_port_private *portdata; |
313 | ||
314 | portdata = usb_get_serial_port_data(port); | |
315 | ||
316 | if (set & TIOCM_RTS) | |
317 | portdata->rts_state = 1; | |
318 | if (set & TIOCM_DTR) | |
319 | portdata->dtr_state = 1; | |
320 | ||
321 | if (clear & TIOCM_RTS) | |
322 | portdata->rts_state = 0; | |
323 | if (clear & TIOCM_DTR) | |
324 | portdata->dtr_state = 0; | |
95da310e | 325 | return sierra_send_setup(tty, port); |
033a3fb9 KL |
326 | } |
327 | ||
17c23274 GKH |
328 | static void sierra_outdat_callback(struct urb *urb) |
329 | { | |
330 | struct usb_serial_port *port = urb->context; | |
331 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
332 | int status = urb->status; | |
333 | unsigned long flags; | |
334 | ||
441b62c1 | 335 | dbg("%s - port %d", __func__, port->number); |
17c23274 GKH |
336 | |
337 | /* free up the transfer buffer, as usb_free_urb() does not do this */ | |
338 | kfree(urb->transfer_buffer); | |
339 | ||
340 | if (status) | |
341 | dbg("%s - nonzero write bulk status received: %d", | |
441b62c1 | 342 | __func__, status); |
17c23274 GKH |
343 | |
344 | spin_lock_irqsave(&portdata->lock, flags); | |
345 | --portdata->outstanding_urbs; | |
346 | spin_unlock_irqrestore(&portdata->lock, flags); | |
347 | ||
348 | usb_serial_port_softint(port); | |
349 | } | |
350 | ||
033a3fb9 | 351 | /* Write */ |
95da310e AC |
352 | static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port, |
353 | const unsigned char *buf, int count) | |
033a3fb9 | 354 | { |
17c23274 GKH |
355 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
356 | struct usb_serial *serial = port->serial; | |
357 | unsigned long flags; | |
358 | unsigned char *buffer; | |
359 | struct urb *urb; | |
360 | int status; | |
033a3fb9 KL |
361 | |
362 | portdata = usb_get_serial_port_data(port); | |
363 | ||
441b62c1 | 364 | dbg("%s: write (%d chars)", __func__, count); |
033a3fb9 | 365 | |
17c23274 GKH |
366 | spin_lock_irqsave(&portdata->lock, flags); |
367 | if (portdata->outstanding_urbs > N_OUT_URB) { | |
368 | spin_unlock_irqrestore(&portdata->lock, flags); | |
441b62c1 | 369 | dbg("%s - write limit hit\n", __func__); |
17c23274 GKH |
370 | return 0; |
371 | } | |
372 | portdata->outstanding_urbs++; | |
373 | spin_unlock_irqrestore(&portdata->lock, flags); | |
374 | ||
375 | buffer = kmalloc(count, GFP_ATOMIC); | |
376 | if (!buffer) { | |
377 | dev_err(&port->dev, "out of memory\n"); | |
378 | count = -ENOMEM; | |
379 | goto error_no_buffer; | |
380 | } | |
033a3fb9 | 381 | |
17c23274 GKH |
382 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
383 | if (!urb) { | |
384 | dev_err(&port->dev, "no more free urbs\n"); | |
385 | count = -ENOMEM; | |
386 | goto error_no_urb; | |
387 | } | |
033a3fb9 | 388 | |
17c23274 | 389 | memcpy(buffer, buf, count); |
033a3fb9 | 390 | |
441b62c1 | 391 | usb_serial_debug_data(debug, &port->dev, __func__, count, buffer); |
17c23274 GKH |
392 | |
393 | usb_fill_bulk_urb(urb, serial->dev, | |
394 | usb_sndbulkpipe(serial->dev, | |
395 | port->bulk_out_endpointAddress), | |
396 | buffer, count, sierra_outdat_callback, port); | |
397 | ||
398 | /* send it down the pipe */ | |
399 | status = usb_submit_urb(urb, GFP_ATOMIC); | |
400 | if (status) { | |
401 | dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " | |
441b62c1 | 402 | "with status = %d\n", __func__, status); |
17c23274 GKH |
403 | count = status; |
404 | goto error; | |
033a3fb9 KL |
405 | } |
406 | ||
17c23274 GKH |
407 | /* we are done with this urb, so let the host driver |
408 | * really free it when it is finished with it */ | |
409 | usb_free_urb(urb); | |
410 | ||
411 | return count; | |
412 | error: | |
413 | usb_free_urb(urb); | |
414 | error_no_urb: | |
415 | kfree(buffer); | |
416 | error_no_buffer: | |
417 | spin_lock_irqsave(&portdata->lock, flags); | |
418 | --portdata->outstanding_urbs; | |
419 | spin_unlock_irqrestore(&portdata->lock, flags); | |
033a3fb9 KL |
420 | return count; |
421 | } | |
422 | ||
423 | static void sierra_indat_callback(struct urb *urb) | |
424 | { | |
425 | int err; | |
426 | int endpoint; | |
427 | struct usb_serial_port *port; | |
428 | struct tty_struct *tty; | |
429 | unsigned char *data = urb->transfer_buffer; | |
17dd2215 | 430 | int status = urb->status; |
033a3fb9 | 431 | |
441b62c1 | 432 | dbg("%s: %p", __func__, urb); |
033a3fb9 KL |
433 | |
434 | endpoint = usb_pipeendpoint(urb->pipe); | |
cdc97792 | 435 | port = urb->context; |
033a3fb9 | 436 | |
17dd2215 | 437 | if (status) { |
033a3fb9 | 438 | dbg("%s: nonzero status: %d on endpoint %02x.", |
441b62c1 | 439 | __func__, status, endpoint); |
033a3fb9 | 440 | } else { |
95da310e | 441 | tty = port->port.tty; |
033a3fb9 KL |
442 | if (urb->actual_length) { |
443 | tty_buffer_request_room(tty, urb->actual_length); | |
444 | tty_insert_flip_string(tty, data, urb->actual_length); | |
445 | tty_flip_buffer_push(tty); | |
446 | } else { | |
441b62c1 | 447 | dbg("%s: empty read urb received", __func__); |
033a3fb9 KL |
448 | } |
449 | ||
450 | /* Resubmit urb so we continue receiving */ | |
95da310e | 451 | if (port->port.count && status != -ESHUTDOWN) { |
033a3fb9 KL |
452 | err = usb_submit_urb(urb, GFP_ATOMIC); |
453 | if (err) | |
17c23274 | 454 | dev_err(&port->dev, "resubmit read urb failed." |
898eb71c | 455 | "(%d)\n", err); |
033a3fb9 KL |
456 | } |
457 | } | |
458 | return; | |
459 | } | |
460 | ||
033a3fb9 KL |
461 | static void sierra_instat_callback(struct urb *urb) |
462 | { | |
463 | int err; | |
17dd2215 | 464 | int status = urb->status; |
cdc97792 | 465 | struct usb_serial_port *port = urb->context; |
033a3fb9 KL |
466 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
467 | struct usb_serial *serial = port->serial; | |
468 | ||
441b62c1 HH |
469 | dbg("%s", __func__); |
470 | dbg("%s: urb %p port %p has data %p", __func__, 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) { | |
441b62c1 | 477 | dbg("%s: NULL req_pkt\n", __func__); |
033a3fb9 KL |
478 | return; |
479 | } | |
480 | if ((req_pkt->bRequestType == 0xA1) && | |
481 | (req_pkt->bRequest == 0x20)) { | |
482 | int old_dcd_state; | |
483 | unsigned char signals = *((unsigned char *) | |
484 | urb->transfer_buffer + | |
485 | sizeof(struct usb_ctrlrequest)); | |
486 | ||
441b62c1 | 487 | dbg("%s: signal x%x", __func__, signals); |
033a3fb9 KL |
488 | |
489 | old_dcd_state = portdata->dcd_state; | |
490 | portdata->cts_state = 1; | |
491 | portdata->dcd_state = ((signals & 0x01) ? 1 : 0); | |
492 | portdata->dsr_state = ((signals & 0x02) ? 1 : 0); | |
493 | portdata->ri_state = ((signals & 0x08) ? 1 : 0); | |
494 | ||
95da310e | 495 | if (port->port.tty && !C_CLOCAL(port->port.tty) && |
033a3fb9 | 496 | old_dcd_state && !portdata->dcd_state) |
95da310e | 497 | tty_hangup(port->port.tty); |
033a3fb9 | 498 | } else { |
441b62c1 | 499 | dbg("%s: type %x req %x", __func__, |
f3564de4 | 500 | req_pkt->bRequestType, req_pkt->bRequest); |
033a3fb9 KL |
501 | } |
502 | } else | |
441b62c1 | 503 | dbg("%s: error %d", __func__, status); |
033a3fb9 KL |
504 | |
505 | /* Resubmit urb so we continue receiving IRQ data */ | |
17dd2215 | 506 | if (status != -ESHUTDOWN) { |
033a3fb9 KL |
507 | urb->dev = serial->dev; |
508 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
509 | if (err) | |
510 | dbg("%s: resubmit intr urb failed. (%d)", | |
441b62c1 | 511 | __func__, err); |
033a3fb9 KL |
512 | } |
513 | } | |
514 | ||
95da310e | 515 | static int sierra_write_room(struct tty_struct *tty) |
033a3fb9 | 516 | { |
95da310e | 517 | struct usb_serial_port *port = tty->driver_data; |
17c23274 GKH |
518 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
519 | unsigned long flags; | |
033a3fb9 | 520 | |
441b62c1 | 521 | dbg("%s - port %d", __func__, port->number); |
033a3fb9 | 522 | |
17c23274 GKH |
523 | /* try to give a good number back based on if we have any free urbs at |
524 | * this point in time */ | |
525 | spin_lock_irqsave(&portdata->lock, flags); | |
526 | if (portdata->outstanding_urbs > N_OUT_URB * 2 / 3) { | |
527 | spin_unlock_irqrestore(&portdata->lock, flags); | |
441b62c1 | 528 | dbg("%s - write limit hit\n", __func__); |
17c23274 | 529 | return 0; |
033a3fb9 | 530 | } |
17c23274 | 531 | spin_unlock_irqrestore(&portdata->lock, flags); |
033a3fb9 | 532 | |
17c23274 | 533 | return 2048; |
033a3fb9 KL |
534 | } |
535 | ||
95da310e AC |
536 | static int sierra_open(struct tty_struct *tty, |
537 | struct usb_serial_port *port, struct file *filp) | |
033a3fb9 KL |
538 | { |
539 | struct sierra_port_private *portdata; | |
540 | struct usb_serial *serial = port->serial; | |
9e85c5f6 | 541 | int i; |
033a3fb9 | 542 | struct urb *urb; |
e43062dd | 543 | int result; |
033a3fb9 KL |
544 | |
545 | portdata = usb_get_serial_port_data(port); | |
546 | ||
441b62c1 | 547 | dbg("%s", __func__); |
033a3fb9 KL |
548 | |
549 | /* Set some sane defaults */ | |
550 | portdata->rts_state = 1; | |
551 | portdata->dtr_state = 1; | |
552 | ||
553 | /* Reset low level data toggle and start reading from endpoints */ | |
554 | for (i = 0; i < N_IN_URB; i++) { | |
555 | urb = portdata->in_urbs[i]; | |
9e85c5f6 | 556 | if (!urb) |
033a3fb9 KL |
557 | continue; |
558 | if (urb->dev != serial->dev) { | |
441b62c1 | 559 | dbg("%s: dev %p != %p", __func__, |
033a3fb9 KL |
560 | urb->dev, serial->dev); |
561 | continue; | |
562 | } | |
563 | ||
564 | /* | |
565 | * make sure endpoint data toggle is synchronized with the | |
566 | * device | |
567 | */ | |
568 | usb_clear_halt(urb->dev, urb->pipe); | |
569 | ||
9e85c5f6 GKH |
570 | result = usb_submit_urb(urb, GFP_KERNEL); |
571 | if (result) { | |
898eb71c | 572 | dev_err(&port->dev, "submit urb %d failed (%d) %d\n", |
9e85c5f6 | 573 | i, result, urb->transfer_buffer_length); |
033a3fb9 KL |
574 | } |
575 | } | |
576 | ||
95da310e AC |
577 | if (tty) |
578 | tty->low_latency = 1; | |
033a3fb9 | 579 | |
95da310e | 580 | sierra_send_setup(tty, port); |
033a3fb9 | 581 | |
9e85c5f6 GKH |
582 | /* start up the interrupt endpoint if we have one */ |
583 | if (port->interrupt_in_urb) { | |
584 | result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); | |
585 | if (result) | |
898eb71c | 586 | dev_err(&port->dev, "submit irq_in urb failed %d\n", |
9e85c5f6 GKH |
587 | result); |
588 | } | |
589 | return 0; | |
033a3fb9 KL |
590 | } |
591 | ||
95da310e AC |
592 | static void sierra_close(struct tty_struct *tty, |
593 | struct usb_serial_port *port, struct file *filp) | |
033a3fb9 KL |
594 | { |
595 | int i; | |
596 | struct usb_serial *serial = port->serial; | |
597 | struct sierra_port_private *portdata; | |
598 | ||
441b62c1 | 599 | dbg("%s", __func__); |
033a3fb9 KL |
600 | portdata = usb_get_serial_port_data(port); |
601 | ||
602 | portdata->rts_state = 0; | |
603 | portdata->dtr_state = 0; | |
604 | ||
605 | if (serial->dev) { | |
e33fe4d8 ON |
606 | mutex_lock(&serial->disc_mutex); |
607 | if (!serial->disconnected) | |
95da310e | 608 | sierra_send_setup(tty, port); |
e33fe4d8 | 609 | mutex_unlock(&serial->disc_mutex); |
033a3fb9 KL |
610 | |
611 | /* Stop reading/writing urbs */ | |
612 | for (i = 0; i < N_IN_URB; i++) | |
9e85c5f6 | 613 | usb_kill_urb(portdata->in_urbs[i]); |
033a3fb9 KL |
614 | } |
615 | ||
9e85c5f6 | 616 | usb_kill_urb(port->interrupt_in_urb); |
033a3fb9 | 617 | |
95da310e | 618 | port->port.tty = NULL; /* FIXME */ |
033a3fb9 KL |
619 | } |
620 | ||
033a3fb9 KL |
621 | static int sierra_startup(struct usb_serial *serial) |
622 | { | |
033a3fb9 KL |
623 | struct usb_serial_port *port; |
624 | struct sierra_port_private *portdata; | |
9e85c5f6 GKH |
625 | struct urb *urb; |
626 | int i; | |
627 | int j; | |
033a3fb9 | 628 | |
441b62c1 | 629 | dbg("%s", __func__); |
033a3fb9 | 630 | |
228426ed | 631 | /* Set Device mode to D0 */ |
112225b1 KL |
632 | sierra_set_power_state(serial->dev, 0x0000); |
633 | ||
228426ed KL |
634 | /* Check NMEA and set */ |
635 | if (nmea) | |
636 | sierra_vsc_set_nmea(serial->dev, 1); | |
637 | ||
033a3fb9 KL |
638 | /* Now setup per port private data */ |
639 | for (i = 0; i < serial->num_ports; i++) { | |
640 | port = serial->port[i]; | |
641 | portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); | |
642 | if (!portdata) { | |
643 | dbg("%s: kmalloc for sierra_port_private (%d) failed!.", | |
441b62c1 | 644 | __func__, i); |
17c23274 | 645 | return -ENOMEM; |
033a3fb9 | 646 | } |
17c23274 | 647 | spin_lock_init(&portdata->lock); |
4f4f9c53 ON |
648 | for (j = 0; j < N_IN_URB; j++) { |
649 | portdata->in_buffer[j] = kmalloc(IN_BUFLEN, GFP_KERNEL); | |
650 | if (!portdata->in_buffer[j]) { | |
651 | for (--j; j >= 0; j--) | |
652 | kfree(portdata->in_buffer[j]); | |
653 | kfree(portdata); | |
654 | return -ENOMEM; | |
655 | } | |
656 | } | |
033a3fb9 KL |
657 | |
658 | usb_set_serial_port_data(port, portdata); | |
659 | ||
9e85c5f6 GKH |
660 | /* initialize the in urbs */ |
661 | for (j = 0; j < N_IN_URB; ++j) { | |
662 | urb = usb_alloc_urb(0, GFP_KERNEL); | |
663 | if (urb == NULL) { | |
664 | dbg("%s: alloc for in port failed.", | |
441b62c1 | 665 | __func__); |
9e85c5f6 GKH |
666 | continue; |
667 | } | |
668 | /* Fill URB using supplied data. */ | |
669 | usb_fill_bulk_urb(urb, serial->dev, | |
670 | usb_rcvbulkpipe(serial->dev, | |
671 | port->bulk_in_endpointAddress), | |
672 | portdata->in_buffer[j], IN_BUFLEN, | |
673 | sierra_indat_callback, port); | |
674 | portdata->in_urbs[j] = urb; | |
675 | } | |
033a3fb9 KL |
676 | } |
677 | ||
17c23274 | 678 | return 0; |
033a3fb9 KL |
679 | } |
680 | ||
681 | static void sierra_shutdown(struct usb_serial *serial) | |
682 | { | |
683 | int i, j; | |
684 | struct usb_serial_port *port; | |
685 | struct sierra_port_private *portdata; | |
686 | ||
441b62c1 | 687 | dbg("%s", __func__); |
033a3fb9 | 688 | |
033a3fb9 KL |
689 | for (i = 0; i < serial->num_ports; ++i) { |
690 | port = serial->port[i]; | |
f094e4f3 GKH |
691 | if (!port) |
692 | continue; | |
033a3fb9 | 693 | portdata = usb_get_serial_port_data(port); |
f094e4f3 GKH |
694 | if (!portdata) |
695 | continue; | |
033a3fb9 KL |
696 | |
697 | for (j = 0; j < N_IN_URB; j++) { | |
9e85c5f6 GKH |
698 | usb_kill_urb(portdata->in_urbs[j]); |
699 | usb_free_urb(portdata->in_urbs[j]); | |
4f4f9c53 | 700 | kfree(portdata->in_buffer[j]); |
033a3fb9 | 701 | } |
9e85c5f6 GKH |
702 | kfree(portdata); |
703 | usb_set_serial_port_data(port, NULL); | |
033a3fb9 KL |
704 | } |
705 | } | |
706 | ||
228426ed | 707 | static struct usb_serial_driver sierra_device = { |
964ee1de GKH |
708 | .driver = { |
709 | .owner = THIS_MODULE, | |
4e0fee82 | 710 | .name = "sierra", |
964ee1de | 711 | }, |
228426ed KL |
712 | .description = "Sierra USB modem", |
713 | .id_table = id_table, | |
d9b1b787 | 714 | .usb_driver = &sierra_driver, |
228426ed KL |
715 | .calc_num_ports = sierra_calc_num_ports, |
716 | .probe = sierra_probe, | |
964ee1de GKH |
717 | .open = sierra_open, |
718 | .close = sierra_close, | |
719 | .write = sierra_write, | |
720 | .write_room = sierra_write_room, | |
964ee1de | 721 | .set_termios = sierra_set_termios, |
964ee1de GKH |
722 | .tiocmget = sierra_tiocmget, |
723 | .tiocmset = sierra_tiocmset, | |
724 | .attach = sierra_startup, | |
725 | .shutdown = sierra_shutdown, | |
726 | .read_int_callback = sierra_instat_callback, | |
727 | }; | |
728 | ||
729 | /* Functions used by new usb-serial code. */ | |
730 | static int __init sierra_init(void) | |
731 | { | |
732 | int retval; | |
228426ed | 733 | retval = usb_serial_register(&sierra_device); |
964ee1de | 734 | if (retval) |
228426ed | 735 | goto failed_device_register; |
964ee1de GKH |
736 | |
737 | ||
738 | retval = usb_register(&sierra_driver); | |
739 | if (retval) | |
740 | goto failed_driver_register; | |
741 | ||
742 | info(DRIVER_DESC ": " DRIVER_VERSION); | |
743 | ||
744 | return 0; | |
745 | ||
746 | failed_driver_register: | |
228426ed KL |
747 | usb_serial_deregister(&sierra_device); |
748 | failed_device_register: | |
964ee1de GKH |
749 | return retval; |
750 | } | |
751 | ||
752 | static void __exit sierra_exit(void) | |
753 | { | |
9660ea36 | 754 | usb_deregister(&sierra_driver); |
228426ed | 755 | usb_serial_deregister(&sierra_device); |
964ee1de GKH |
756 | } |
757 | ||
758 | module_init(sierra_init); | |
759 | module_exit(sierra_exit); | |
760 | ||
033a3fb9 KL |
761 | MODULE_AUTHOR(DRIVER_AUTHOR); |
762 | MODULE_DESCRIPTION(DRIVER_DESC); | |
763 | MODULE_VERSION(DRIVER_VERSION); | |
69de51fd | 764 | MODULE_LICENSE("GPL"); |
033a3fb9 | 765 | |
4e0fee82 | 766 | module_param(nmea, bool, S_IRUGO | S_IWUSR); |
228426ed KL |
767 | MODULE_PARM_DESC(nmea, "NMEA streaming"); |
768 | ||
033a3fb9 KL |
769 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
770 | MODULE_PARM_DESC(debug, "Debug messages"); |