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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 | ||
f3564de4 KL |
17 | #define DRIVER_VERSION "v.1.2.9c" |
18 | #define DRIVER_AUTHOR "Kevin Lloyd <klloyd@sierrawireless.com>" | |
033a3fb9 | 19 | #define DRIVER_DESC "USB Driver for Sierra Wireless USB modems" |
69de51fd KL |
20 | |
21 | #include <linux/kernel.h> | |
033a3fb9 KL |
22 | #include <linux/jiffies.h> |
23 | #include <linux/errno.h> | |
69de51fd | 24 | #include <linux/tty.h> |
033a3fb9 | 25 | #include <linux/tty_flip.h> |
69de51fd KL |
26 | #include <linux/module.h> |
27 | #include <linux/usb.h> | |
a969888c | 28 | #include <linux/usb/serial.h> |
228426ed | 29 | #include <linux/usb/ch9.h> |
69de51fd | 30 | |
228426ed KL |
31 | #define SWIMS_USB_REQUEST_SetPower 0x00 |
32 | #define SWIMS_USB_REQUEST_SetNmea 0x07 | |
112225b1 | 33 | #define SWIMS_USB_REQUEST_SetMode 0x0B |
112225b1 KL |
34 | #define SWIMS_SET_MODE_Modem 0x0001 |
35 | ||
36 | /* per port private data */ | |
37 | #define N_IN_URB 4 | |
38 | #define N_OUT_URB 4 | |
39 | #define IN_BUFLEN 4096 | |
40 | ||
41 | static int debug; | |
228426ed KL |
42 | static int nmea; |
43 | static int truinstall = 1; | |
112225b1 KL |
44 | |
45 | enum devicetype { | |
46 | DEVICE_3_PORT = 0, | |
47 | DEVICE_1_PORT = 1, | |
48 | DEVICE_INSTALLER = 2, | |
49 | }; | |
50 | ||
82a24e68 | 51 | static int sierra_set_power_state(struct usb_device *udev, __u16 swiState) |
112225b1 KL |
52 | { |
53 | int result; | |
4e0fee82 | 54 | dev_dbg(&udev->dev, "%s", __func__); |
112225b1 | 55 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
228426ed | 56 | SWIMS_USB_REQUEST_SetPower, /* __u8 request */ |
f3564de4 | 57 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
58 | swiState, /* __u16 value */ |
59 | 0, /* __u16 index */ | |
60 | NULL, /* void *data */ | |
61 | 0, /* __u16 size */ | |
62 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
112225b1 KL |
63 | return result; |
64 | } | |
65 | ||
228426ed | 66 | static int sierra_set_ms_mode(struct usb_device *udev, __u16 eSWocMode) |
112225b1 KL |
67 | { |
68 | int result; | |
4e0fee82 | 69 | dev_dbg(&udev->dev, "%s", __func__); |
112225b1 KL |
70 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
71 | SWIMS_USB_REQUEST_SetMode, /* __u8 request */ | |
f3564de4 | 72 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
73 | eSWocMode, /* __u16 value */ |
74 | 0x0000, /* __u16 index */ | |
112225b1 KL |
75 | NULL, /* void *data */ |
76 | 0, /* __u16 size */ | |
77 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
78 | return result; | |
79 | } | |
80 | ||
228426ed | 81 | static int sierra_vsc_set_nmea(struct usb_device *udev, __u16 enable) |
112225b1 KL |
82 | { |
83 | int result; | |
4e0fee82 | 84 | dev_dbg(&udev->dev, "%s", __func__); |
228426ed KL |
85 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
86 | SWIMS_USB_REQUEST_SetNmea, /* __u8 request */ | |
f3564de4 | 87 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
88 | enable, /* __u16 value */ |
89 | 0x0000, /* __u16 index */ | |
90 | NULL, /* void *data */ | |
91 | 0, /* __u16 size */ | |
92 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
93 | return result; | |
94 | } | |
95 | ||
96 | static int sierra_calc_num_ports(struct usb_serial *serial) | |
97 | { | |
98 | int result; | |
99 | int *num_ports = usb_get_serial_data(serial); | |
4e0fee82 | 100 | dev_dbg(&serial->dev->dev, "%s", __func__); |
228426ed KL |
101 | |
102 | result = *num_ports; | |
103 | ||
104 | if (result) { | |
105 | kfree(num_ports); | |
106 | usb_set_serial_data(serial, NULL); | |
107 | } | |
108 | ||
109 | return result; | |
110 | } | |
111 | ||
7106967e KL |
112 | static int sierra_calc_interface(struct usb_serial *serial) |
113 | { | |
4e0fee82 KL |
114 | int interface; |
115 | struct usb_interface *p_interface; | |
116 | struct usb_host_interface *p_host_interface; | |
117 | dev_dbg(&serial->dev->dev, "%s", __func__); | |
7106967e | 118 | |
4e0fee82 KL |
119 | /* Get the interface structure pointer from the serial struct */ |
120 | p_interface = serial->interface; | |
7106967e | 121 | |
4e0fee82 KL |
122 | /* Get a pointer to the host interface structure */ |
123 | p_host_interface = p_interface->cur_altsetting; | |
7106967e | 124 | |
4e0fee82 KL |
125 | /* read the interface descriptor for this active altsetting |
126 | * to find out the interface number we are on | |
127 | */ | |
128 | interface = p_host_interface->desc.bInterfaceNumber; | |
7106967e | 129 | |
4e0fee82 | 130 | return interface; |
7106967e KL |
131 | } |
132 | ||
228426ed KL |
133 | static int sierra_probe(struct usb_serial *serial, |
134 | const struct usb_device_id *id) | |
135 | { | |
136 | int result = 0; | |
112225b1 | 137 | struct usb_device *udev; |
228426ed KL |
138 | int *num_ports; |
139 | u8 ifnum; | |
4e0fee82 | 140 | dev_dbg(&serial->dev->dev, "%s", __func__); |
112225b1 | 141 | |
228426ed KL |
142 | num_ports = kmalloc(sizeof(*num_ports), GFP_KERNEL); |
143 | if (!num_ports) | |
144 | return -ENOMEM; | |
145 | ||
146 | ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber; | |
147 | udev = serial->dev; | |
112225b1 | 148 | |
7106967e KL |
149 | /* Figure out the interface number from the serial structure */ |
150 | ifnum = sierra_calc_interface(serial); | |
151 | ||
152 | /* | |
153 | * If this interface supports more than 1 alternate | |
154 | * select the 2nd one | |
155 | */ | |
156 | if (serial->interface->num_altsetting == 2) { | |
157 | dev_dbg(&udev->dev, | |
158 | "Selecting alt setting for interface %d\n", | |
159 | ifnum); | |
160 | ||
161 | /* We know the alternate setting is 1 for the MC8785 */ | |
162 | usb_set_interface(udev, ifnum, 1); | |
163 | } | |
164 | ||
112225b1 | 165 | /* Check if in installer mode */ |
228426ed KL |
166 | if (truinstall && id->driver_info == DEVICE_INSTALLER) { |
167 | dev_dbg(&udev->dev, "%s", "FOUND TRU-INSTALL DEVICE(SW)\n"); | |
112225b1 | 168 | result = sierra_set_ms_mode(udev, SWIMS_SET_MODE_Modem); |
228426ed KL |
169 | /* Don't bind to the device when in installer mode */ |
170 | kfree(num_ports); | |
112225b1 | 171 | return -EIO; |
228426ed KL |
172 | } else if (id->driver_info == DEVICE_1_PORT) |
173 | *num_ports = 1; | |
174 | else if (ifnum == 0x99) | |
175 | *num_ports = 0; | |
176 | else | |
177 | *num_ports = 3; | |
178 | /* | |
179 | * save off our num_ports info so that we can use it in the | |
180 | * calc_num_ports callback | |
181 | */ | |
182 | usb_set_serial_data(serial, (void *)num_ports); | |
112225b1 | 183 | |
228426ed | 184 | return result; |
112225b1 | 185 | } |
033a3fb9 | 186 | |
69de51fd | 187 | static struct usb_device_id id_table [] = { |
e43062dd | 188 | { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ |
69de51fd | 189 | { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ |
e43062dd | 190 | { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ |
9454c46a | 191 | { USB_DEVICE(0x0f30, 0x1b1d) }, /* Sierra Wireless MC5720 */ |
69de51fd | 192 | { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ |
4e0fee82 | 193 | { USB_DEVICE(0x1199, 0x0024) }, /* Sierra Wireless MC5727 */ |
b9e13ac3 | 194 | { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */ |
69de51fd | 195 | { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ |
e43062dd | 196 | { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ |
9454c46a | 197 | { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */ |
4e0fee82 KL |
198 | /* Sierra Wireless C597 */ |
199 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0023, 0xFF, 0xFF, 0xFF) }, | |
9454c46a | 200 | |
69de51fd | 201 | { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ |
e43062dd | 202 | { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ |
69de51fd | 203 | { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ |
9454c46a | 204 | { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ |
4e0fee82 | 205 | { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 (Lenovo) */ |
7f170a63 | 206 | { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */ |
8f7f85e9 | 207 | { USB_DEVICE(0x03f0, 0x1e1d) }, /* HP hs2300 a.k.a MC8775 */ |
69de51fd | 208 | { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ |
7106967e | 209 | { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */ |
4e0fee82 KL |
210 | { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780 */ |
211 | { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781 */ | |
212 | { USB_DEVICE(0x1199, 0x683B), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless MC8785 Composite */ | |
9454c46a KL |
213 | { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ |
214 | { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ | |
215 | { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */ | |
216 | { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */ | |
6835b32c | 217 | { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */ |
62aad3ab | 218 | { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ |
7106967e KL |
219 | { USB_DEVICE(0x1199, 0x6859), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 885 E */ |
220 | { USB_DEVICE(0x1199, 0x685A), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 885 E */ | |
033a3fb9 | 221 | |
112225b1 KL |
222 | { USB_DEVICE(0x1199, 0x0112), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 580 */ |
223 | { USB_DEVICE(0x0F3D, 0x0112), .driver_info = DEVICE_1_PORT }, /* Airprime/Sierra PC 5220 */ | |
224 | ||
225 | { USB_DEVICE(0x1199, 0x0FFF), .driver_info = DEVICE_INSTALLER}, | |
033a3fb9 KL |
226 | { } |
227 | }; | |
964ee1de | 228 | MODULE_DEVICE_TABLE(usb, id_table); |
033a3fb9 | 229 | |
69de51fd | 230 | static struct usb_driver sierra_driver = { |
033a3fb9 | 231 | .name = "sierra", |
228426ed | 232 | .probe = usb_serial_probe, |
033a3fb9 KL |
233 | .disconnect = usb_serial_disconnect, |
234 | .id_table = id_table, | |
964ee1de | 235 | .no_dynamic_id = 1, |
033a3fb9 KL |
236 | }; |
237 | ||
033a3fb9 | 238 | struct sierra_port_private { |
17c23274 GKH |
239 | spinlock_t lock; /* lock the structure */ |
240 | int outstanding_urbs; /* number of out urbs in flight */ | |
241 | ||
4f4f9c53 | 242 | /* Input endpoints and buffers for this port */ |
033a3fb9 | 243 | struct urb *in_urbs[N_IN_URB]; |
4f4f9c53 | 244 | char *in_buffer[N_IN_URB]; |
033a3fb9 KL |
245 | |
246 | /* Settings for the port */ | |
247 | int rts_state; /* Handshaking pins (outputs) */ | |
248 | int dtr_state; | |
249 | int cts_state; /* Handshaking pins (inputs) */ | |
250 | int dsr_state; | |
251 | int dcd_state; | |
252 | int ri_state; | |
033a3fb9 KL |
253 | }; |
254 | ||
95da310e AC |
255 | static int sierra_send_setup(struct tty_struct *tty, |
256 | struct usb_serial_port *port) | |
69de51fd | 257 | { |
964ee1de GKH |
258 | struct usb_serial *serial = port->serial; |
259 | struct sierra_port_private *portdata; | |
228426ed | 260 | __u16 interface = 0; |
033a3fb9 | 261 | |
441b62c1 | 262 | dbg("%s", __func__); |
033a3fb9 | 263 | |
964ee1de | 264 | portdata = usb_get_serial_port_data(port); |
033a3fb9 | 265 | |
95da310e | 266 | if (tty) { |
964ee1de GKH |
267 | int val = 0; |
268 | if (portdata->dtr_state) | |
269 | val |= 0x01; | |
270 | if (portdata->rts_state) | |
271 | val |= 0x02; | |
033a3fb9 | 272 | |
228426ed KL |
273 | /* Determine which port is targeted */ |
274 | if (port->bulk_out_endpointAddress == 2) | |
275 | interface = 0; | |
276 | else if (port->bulk_out_endpointAddress == 4) | |
277 | interface = 1; | |
278 | else if (port->bulk_out_endpointAddress == 5) | |
279 | interface = 2; | |
280 | ||
964ee1de GKH |
281 | return usb_control_msg(serial->dev, |
282 | usb_rcvctrlpipe(serial->dev, 0), | |
228426ed KL |
283 | 0x22, 0x21, val, interface, |
284 | NULL, 0, USB_CTRL_SET_TIMEOUT); | |
964ee1de | 285 | } |
69de51fd | 286 | |
964ee1de | 287 | return 0; |
69de51fd KL |
288 | } |
289 | ||
95da310e AC |
290 | static void sierra_set_termios(struct tty_struct *tty, |
291 | struct usb_serial_port *port, struct ktermios *old_termios) | |
033a3fb9 | 292 | { |
441b62c1 | 293 | dbg("%s", __func__); |
95da310e AC |
294 | tty_termios_copy_hw(tty->termios, old_termios); |
295 | sierra_send_setup(tty, port); | |
033a3fb9 KL |
296 | } |
297 | ||
95da310e | 298 | static int sierra_tiocmget(struct tty_struct *tty, struct file *file) |
033a3fb9 | 299 | { |
95da310e | 300 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
301 | unsigned int value; |
302 | struct sierra_port_private *portdata; | |
303 | ||
304 | portdata = usb_get_serial_port_data(port); | |
305 | ||
306 | value = ((portdata->rts_state) ? TIOCM_RTS : 0) | | |
307 | ((portdata->dtr_state) ? TIOCM_DTR : 0) | | |
308 | ((portdata->cts_state) ? TIOCM_CTS : 0) | | |
309 | ((portdata->dsr_state) ? TIOCM_DSR : 0) | | |
310 | ((portdata->dcd_state) ? TIOCM_CAR : 0) | | |
311 | ((portdata->ri_state) ? TIOCM_RNG : 0); | |
312 | ||
313 | return value; | |
314 | } | |
315 | ||
95da310e | 316 | static int sierra_tiocmset(struct tty_struct *tty, struct file *file, |
033a3fb9 KL |
317 | unsigned int set, unsigned int clear) |
318 | { | |
95da310e | 319 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
320 | struct sierra_port_private *portdata; |
321 | ||
322 | portdata = usb_get_serial_port_data(port); | |
323 | ||
324 | if (set & TIOCM_RTS) | |
325 | portdata->rts_state = 1; | |
326 | if (set & TIOCM_DTR) | |
327 | portdata->dtr_state = 1; | |
328 | ||
329 | if (clear & TIOCM_RTS) | |
330 | portdata->rts_state = 0; | |
331 | if (clear & TIOCM_DTR) | |
332 | portdata->dtr_state = 0; | |
95da310e | 333 | return sierra_send_setup(tty, port); |
033a3fb9 KL |
334 | } |
335 | ||
17c23274 GKH |
336 | static void sierra_outdat_callback(struct urb *urb) |
337 | { | |
338 | struct usb_serial_port *port = urb->context; | |
339 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
340 | int status = urb->status; | |
341 | unsigned long flags; | |
342 | ||
441b62c1 | 343 | dbg("%s - port %d", __func__, port->number); |
17c23274 GKH |
344 | |
345 | /* free up the transfer buffer, as usb_free_urb() does not do this */ | |
346 | kfree(urb->transfer_buffer); | |
347 | ||
348 | if (status) | |
349 | dbg("%s - nonzero write bulk status received: %d", | |
441b62c1 | 350 | __func__, status); |
17c23274 GKH |
351 | |
352 | spin_lock_irqsave(&portdata->lock, flags); | |
353 | --portdata->outstanding_urbs; | |
354 | spin_unlock_irqrestore(&portdata->lock, flags); | |
355 | ||
356 | usb_serial_port_softint(port); | |
357 | } | |
358 | ||
033a3fb9 | 359 | /* Write */ |
95da310e AC |
360 | static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port, |
361 | const unsigned char *buf, int count) | |
033a3fb9 | 362 | { |
17c23274 GKH |
363 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
364 | struct usb_serial *serial = port->serial; | |
365 | unsigned long flags; | |
366 | unsigned char *buffer; | |
367 | struct urb *urb; | |
368 | int status; | |
033a3fb9 KL |
369 | |
370 | portdata = usb_get_serial_port_data(port); | |
371 | ||
441b62c1 | 372 | dbg("%s: write (%d chars)", __func__, count); |
033a3fb9 | 373 | |
17c23274 GKH |
374 | spin_lock_irqsave(&portdata->lock, flags); |
375 | if (portdata->outstanding_urbs > N_OUT_URB) { | |
376 | spin_unlock_irqrestore(&portdata->lock, flags); | |
441b62c1 | 377 | dbg("%s - write limit hit\n", __func__); |
17c23274 GKH |
378 | return 0; |
379 | } | |
380 | portdata->outstanding_urbs++; | |
381 | spin_unlock_irqrestore(&portdata->lock, flags); | |
382 | ||
383 | buffer = kmalloc(count, GFP_ATOMIC); | |
384 | if (!buffer) { | |
385 | dev_err(&port->dev, "out of memory\n"); | |
386 | count = -ENOMEM; | |
387 | goto error_no_buffer; | |
388 | } | |
033a3fb9 | 389 | |
17c23274 GKH |
390 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
391 | if (!urb) { | |
392 | dev_err(&port->dev, "no more free urbs\n"); | |
393 | count = -ENOMEM; | |
394 | goto error_no_urb; | |
395 | } | |
033a3fb9 | 396 | |
17c23274 | 397 | memcpy(buffer, buf, count); |
033a3fb9 | 398 | |
441b62c1 | 399 | usb_serial_debug_data(debug, &port->dev, __func__, count, buffer); |
17c23274 GKH |
400 | |
401 | usb_fill_bulk_urb(urb, serial->dev, | |
402 | usb_sndbulkpipe(serial->dev, | |
403 | port->bulk_out_endpointAddress), | |
404 | buffer, count, sierra_outdat_callback, port); | |
405 | ||
406 | /* send it down the pipe */ | |
407 | status = usb_submit_urb(urb, GFP_ATOMIC); | |
408 | if (status) { | |
409 | dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " | |
441b62c1 | 410 | "with status = %d\n", __func__, status); |
17c23274 GKH |
411 | count = status; |
412 | goto error; | |
033a3fb9 KL |
413 | } |
414 | ||
17c23274 GKH |
415 | /* we are done with this urb, so let the host driver |
416 | * really free it when it is finished with it */ | |
417 | usb_free_urb(urb); | |
418 | ||
419 | return count; | |
420 | error: | |
421 | usb_free_urb(urb); | |
422 | error_no_urb: | |
423 | kfree(buffer); | |
424 | error_no_buffer: | |
425 | spin_lock_irqsave(&portdata->lock, flags); | |
426 | --portdata->outstanding_urbs; | |
427 | spin_unlock_irqrestore(&portdata->lock, flags); | |
033a3fb9 KL |
428 | return count; |
429 | } | |
430 | ||
431 | static void sierra_indat_callback(struct urb *urb) | |
432 | { | |
433 | int err; | |
434 | int endpoint; | |
435 | struct usb_serial_port *port; | |
436 | struct tty_struct *tty; | |
437 | unsigned char *data = urb->transfer_buffer; | |
17dd2215 | 438 | int status = urb->status; |
033a3fb9 | 439 | |
441b62c1 | 440 | dbg("%s: %p", __func__, urb); |
033a3fb9 KL |
441 | |
442 | endpoint = usb_pipeendpoint(urb->pipe); | |
cdc97792 | 443 | port = urb->context; |
033a3fb9 | 444 | |
17dd2215 | 445 | if (status) { |
033a3fb9 | 446 | dbg("%s: nonzero status: %d on endpoint %02x.", |
441b62c1 | 447 | __func__, status, endpoint); |
033a3fb9 | 448 | } else { |
95da310e | 449 | tty = port->port.tty; |
033a3fb9 KL |
450 | if (urb->actual_length) { |
451 | tty_buffer_request_room(tty, urb->actual_length); | |
452 | tty_insert_flip_string(tty, data, urb->actual_length); | |
453 | tty_flip_buffer_push(tty); | |
454 | } else { | |
441b62c1 | 455 | dbg("%s: empty read urb received", __func__); |
033a3fb9 KL |
456 | } |
457 | ||
458 | /* Resubmit urb so we continue receiving */ | |
95da310e | 459 | if (port->port.count && status != -ESHUTDOWN) { |
033a3fb9 KL |
460 | err = usb_submit_urb(urb, GFP_ATOMIC); |
461 | if (err) | |
17c23274 | 462 | dev_err(&port->dev, "resubmit read urb failed." |
898eb71c | 463 | "(%d)\n", err); |
033a3fb9 KL |
464 | } |
465 | } | |
466 | return; | |
467 | } | |
468 | ||
033a3fb9 KL |
469 | static void sierra_instat_callback(struct urb *urb) |
470 | { | |
471 | int err; | |
17dd2215 | 472 | int status = urb->status; |
cdc97792 | 473 | struct usb_serial_port *port = urb->context; |
033a3fb9 KL |
474 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
475 | struct usb_serial *serial = port->serial; | |
476 | ||
441b62c1 HH |
477 | dbg("%s", __func__); |
478 | dbg("%s: urb %p port %p has data %p", __func__, urb, port, portdata); | |
033a3fb9 | 479 | |
17dd2215 | 480 | if (status == 0) { |
033a3fb9 KL |
481 | struct usb_ctrlrequest *req_pkt = |
482 | (struct usb_ctrlrequest *)urb->transfer_buffer; | |
483 | ||
484 | if (!req_pkt) { | |
441b62c1 | 485 | dbg("%s: NULL req_pkt\n", __func__); |
033a3fb9 KL |
486 | return; |
487 | } | |
488 | if ((req_pkt->bRequestType == 0xA1) && | |
489 | (req_pkt->bRequest == 0x20)) { | |
490 | int old_dcd_state; | |
491 | unsigned char signals = *((unsigned char *) | |
492 | urb->transfer_buffer + | |
493 | sizeof(struct usb_ctrlrequest)); | |
494 | ||
441b62c1 | 495 | dbg("%s: signal x%x", __func__, 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 | ||
95da310e | 503 | if (port->port.tty && !C_CLOCAL(port->port.tty) && |
033a3fb9 | 504 | old_dcd_state && !portdata->dcd_state) |
95da310e | 505 | tty_hangup(port->port.tty); |
033a3fb9 | 506 | } else { |
441b62c1 | 507 | dbg("%s: type %x req %x", __func__, |
f3564de4 | 508 | req_pkt->bRequestType, req_pkt->bRequest); |
033a3fb9 KL |
509 | } |
510 | } else | |
441b62c1 | 511 | dbg("%s: error %d", __func__, status); |
033a3fb9 KL |
512 | |
513 | /* Resubmit urb so we continue receiving IRQ data */ | |
17dd2215 | 514 | if (status != -ESHUTDOWN) { |
033a3fb9 KL |
515 | urb->dev = serial->dev; |
516 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
517 | if (err) | |
518 | dbg("%s: resubmit intr urb failed. (%d)", | |
441b62c1 | 519 | __func__, err); |
033a3fb9 KL |
520 | } |
521 | } | |
522 | ||
95da310e | 523 | static int sierra_write_room(struct tty_struct *tty) |
033a3fb9 | 524 | { |
95da310e | 525 | struct usb_serial_port *port = tty->driver_data; |
17c23274 GKH |
526 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
527 | unsigned long flags; | |
033a3fb9 | 528 | |
441b62c1 | 529 | dbg("%s - port %d", __func__, port->number); |
033a3fb9 | 530 | |
17c23274 GKH |
531 | /* try to give a good number back based on if we have any free urbs at |
532 | * this point in time */ | |
533 | spin_lock_irqsave(&portdata->lock, flags); | |
534 | if (portdata->outstanding_urbs > N_OUT_URB * 2 / 3) { | |
535 | spin_unlock_irqrestore(&portdata->lock, flags); | |
441b62c1 | 536 | dbg("%s - write limit hit\n", __func__); |
17c23274 | 537 | return 0; |
033a3fb9 | 538 | } |
17c23274 | 539 | spin_unlock_irqrestore(&portdata->lock, flags); |
033a3fb9 | 540 | |
17c23274 | 541 | return 2048; |
033a3fb9 KL |
542 | } |
543 | ||
95da310e AC |
544 | static int sierra_open(struct tty_struct *tty, |
545 | struct usb_serial_port *port, struct file *filp) | |
033a3fb9 KL |
546 | { |
547 | struct sierra_port_private *portdata; | |
548 | struct usb_serial *serial = port->serial; | |
9e85c5f6 | 549 | int i; |
033a3fb9 | 550 | struct urb *urb; |
e43062dd | 551 | int result; |
033a3fb9 KL |
552 | |
553 | portdata = usb_get_serial_port_data(port); | |
554 | ||
441b62c1 | 555 | dbg("%s", __func__); |
033a3fb9 KL |
556 | |
557 | /* Set some sane defaults */ | |
558 | portdata->rts_state = 1; | |
559 | portdata->dtr_state = 1; | |
560 | ||
561 | /* Reset low level data toggle and start reading from endpoints */ | |
562 | for (i = 0; i < N_IN_URB; i++) { | |
563 | urb = portdata->in_urbs[i]; | |
9e85c5f6 | 564 | if (!urb) |
033a3fb9 KL |
565 | continue; |
566 | if (urb->dev != serial->dev) { | |
441b62c1 | 567 | dbg("%s: dev %p != %p", __func__, |
033a3fb9 KL |
568 | urb->dev, serial->dev); |
569 | continue; | |
570 | } | |
571 | ||
572 | /* | |
573 | * make sure endpoint data toggle is synchronized with the | |
574 | * device | |
575 | */ | |
576 | usb_clear_halt(urb->dev, urb->pipe); | |
577 | ||
9e85c5f6 GKH |
578 | result = usb_submit_urb(urb, GFP_KERNEL); |
579 | if (result) { | |
898eb71c | 580 | dev_err(&port->dev, "submit urb %d failed (%d) %d\n", |
9e85c5f6 | 581 | i, result, urb->transfer_buffer_length); |
033a3fb9 KL |
582 | } |
583 | } | |
584 | ||
95da310e AC |
585 | if (tty) |
586 | tty->low_latency = 1; | |
033a3fb9 | 587 | |
95da310e | 588 | sierra_send_setup(tty, port); |
033a3fb9 | 589 | |
9e85c5f6 GKH |
590 | /* start up the interrupt endpoint if we have one */ |
591 | if (port->interrupt_in_urb) { | |
592 | result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); | |
593 | if (result) | |
898eb71c | 594 | dev_err(&port->dev, "submit irq_in urb failed %d\n", |
9e85c5f6 GKH |
595 | result); |
596 | } | |
597 | return 0; | |
033a3fb9 KL |
598 | } |
599 | ||
95da310e AC |
600 | static void sierra_close(struct tty_struct *tty, |
601 | struct usb_serial_port *port, struct file *filp) | |
033a3fb9 KL |
602 | { |
603 | int i; | |
604 | struct usb_serial *serial = port->serial; | |
605 | struct sierra_port_private *portdata; | |
606 | ||
441b62c1 | 607 | dbg("%s", __func__); |
033a3fb9 KL |
608 | portdata = usb_get_serial_port_data(port); |
609 | ||
610 | portdata->rts_state = 0; | |
611 | portdata->dtr_state = 0; | |
612 | ||
613 | if (serial->dev) { | |
e33fe4d8 ON |
614 | mutex_lock(&serial->disc_mutex); |
615 | if (!serial->disconnected) | |
95da310e | 616 | sierra_send_setup(tty, port); |
e33fe4d8 | 617 | mutex_unlock(&serial->disc_mutex); |
033a3fb9 KL |
618 | |
619 | /* Stop reading/writing urbs */ | |
620 | for (i = 0; i < N_IN_URB; i++) | |
9e85c5f6 | 621 | usb_kill_urb(portdata->in_urbs[i]); |
033a3fb9 KL |
622 | } |
623 | ||
9e85c5f6 | 624 | usb_kill_urb(port->interrupt_in_urb); |
033a3fb9 | 625 | |
95da310e | 626 | port->port.tty = NULL; /* FIXME */ |
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 | |
441b62c1 | 637 | dbg("%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) { | |
651 | dbg("%s: kmalloc for sierra_port_private (%d) failed!.", | |
441b62c1 | 652 | __func__, i); |
17c23274 | 653 | return -ENOMEM; |
033a3fb9 | 654 | } |
17c23274 | 655 | spin_lock_init(&portdata->lock); |
4f4f9c53 ON |
656 | for (j = 0; j < N_IN_URB; j++) { |
657 | portdata->in_buffer[j] = kmalloc(IN_BUFLEN, GFP_KERNEL); | |
658 | if (!portdata->in_buffer[j]) { | |
659 | for (--j; j >= 0; j--) | |
660 | kfree(portdata->in_buffer[j]); | |
661 | kfree(portdata); | |
662 | return -ENOMEM; | |
663 | } | |
664 | } | |
033a3fb9 KL |
665 | |
666 | usb_set_serial_port_data(port, portdata); | |
667 | ||
9e85c5f6 GKH |
668 | /* initialize the in urbs */ |
669 | for (j = 0; j < N_IN_URB; ++j) { | |
670 | urb = usb_alloc_urb(0, GFP_KERNEL); | |
671 | if (urb == NULL) { | |
672 | dbg("%s: alloc for in port failed.", | |
441b62c1 | 673 | __func__); |
9e85c5f6 GKH |
674 | continue; |
675 | } | |
676 | /* Fill URB using supplied data. */ | |
677 | usb_fill_bulk_urb(urb, serial->dev, | |
678 | usb_rcvbulkpipe(serial->dev, | |
679 | port->bulk_in_endpointAddress), | |
680 | portdata->in_buffer[j], IN_BUFLEN, | |
681 | sierra_indat_callback, port); | |
682 | portdata->in_urbs[j] = urb; | |
683 | } | |
033a3fb9 KL |
684 | } |
685 | ||
17c23274 | 686 | return 0; |
033a3fb9 KL |
687 | } |
688 | ||
689 | static void sierra_shutdown(struct usb_serial *serial) | |
690 | { | |
691 | int i, j; | |
692 | struct usb_serial_port *port; | |
693 | struct sierra_port_private *portdata; | |
694 | ||
441b62c1 | 695 | dbg("%s", __func__); |
033a3fb9 | 696 | |
033a3fb9 KL |
697 | for (i = 0; i < serial->num_ports; ++i) { |
698 | port = serial->port[i]; | |
f094e4f3 GKH |
699 | if (!port) |
700 | continue; | |
033a3fb9 | 701 | portdata = usb_get_serial_port_data(port); |
f094e4f3 GKH |
702 | if (!portdata) |
703 | continue; | |
033a3fb9 KL |
704 | |
705 | for (j = 0; j < N_IN_URB; j++) { | |
9e85c5f6 GKH |
706 | usb_kill_urb(portdata->in_urbs[j]); |
707 | usb_free_urb(portdata->in_urbs[j]); | |
4f4f9c53 | 708 | kfree(portdata->in_buffer[j]); |
033a3fb9 | 709 | } |
9e85c5f6 GKH |
710 | kfree(portdata); |
711 | usb_set_serial_port_data(port, NULL); | |
033a3fb9 KL |
712 | } |
713 | } | |
714 | ||
228426ed | 715 | static struct usb_serial_driver sierra_device = { |
964ee1de GKH |
716 | .driver = { |
717 | .owner = THIS_MODULE, | |
4e0fee82 | 718 | .name = "sierra", |
964ee1de | 719 | }, |
228426ed KL |
720 | .description = "Sierra USB modem", |
721 | .id_table = id_table, | |
d9b1b787 | 722 | .usb_driver = &sierra_driver, |
228426ed KL |
723 | .calc_num_ports = sierra_calc_num_ports, |
724 | .probe = sierra_probe, | |
964ee1de GKH |
725 | .open = sierra_open, |
726 | .close = sierra_close, | |
727 | .write = sierra_write, | |
728 | .write_room = sierra_write_room, | |
964ee1de | 729 | .set_termios = sierra_set_termios, |
964ee1de GKH |
730 | .tiocmget = sierra_tiocmget, |
731 | .tiocmset = sierra_tiocmset, | |
732 | .attach = sierra_startup, | |
733 | .shutdown = sierra_shutdown, | |
734 | .read_int_callback = sierra_instat_callback, | |
735 | }; | |
736 | ||
737 | /* Functions used by new usb-serial code. */ | |
738 | static int __init sierra_init(void) | |
739 | { | |
740 | int retval; | |
228426ed | 741 | retval = usb_serial_register(&sierra_device); |
964ee1de | 742 | if (retval) |
228426ed | 743 | goto failed_device_register; |
964ee1de GKH |
744 | |
745 | ||
746 | retval = usb_register(&sierra_driver); | |
747 | if (retval) | |
748 | goto failed_driver_register; | |
749 | ||
750 | info(DRIVER_DESC ": " DRIVER_VERSION); | |
751 | ||
752 | return 0; | |
753 | ||
754 | failed_driver_register: | |
228426ed KL |
755 | usb_serial_deregister(&sierra_device); |
756 | failed_device_register: | |
964ee1de GKH |
757 | return retval; |
758 | } | |
759 | ||
760 | static void __exit sierra_exit(void) | |
761 | { | |
9660ea36 | 762 | usb_deregister(&sierra_driver); |
228426ed | 763 | usb_serial_deregister(&sierra_device); |
964ee1de GKH |
764 | } |
765 | ||
766 | module_init(sierra_init); | |
767 | module_exit(sierra_exit); | |
768 | ||
033a3fb9 KL |
769 | MODULE_AUTHOR(DRIVER_AUTHOR); |
770 | MODULE_DESCRIPTION(DRIVER_DESC); | |
771 | MODULE_VERSION(DRIVER_VERSION); | |
69de51fd | 772 | MODULE_LICENSE("GPL"); |
033a3fb9 | 773 | |
4e0fee82 | 774 | module_param(nmea, bool, S_IRUGO | S_IWUSR); |
228426ed KL |
775 | MODULE_PARM_DESC(nmea, "NMEA streaming"); |
776 | ||
033a3fb9 KL |
777 | #ifdef CONFIG_USB_DEBUG |
778 | module_param(debug, bool, S_IRUGO | S_IWUSR); | |
779 | MODULE_PARM_DESC(debug, "Debug messages"); | |
780 | #endif |