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Commit | Line | Data |
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69de51fd | 1 | /* |
033a3fb9 KL |
2 | USB Driver for Sierra Wireless |
3 | ||
40d2ff32 EP |
4 | Copyright (C) 2006, 2007, 2008 Kevin Lloyd <klloyd@sierrawireless.com>, |
5 | ||
6 | Copyright (C) 2008, 2009 Elina Pasheva, Matthew Safar, Rory Filer | |
7 | <linux@sierrawireless.com> | |
033a3fb9 KL |
8 | |
9 | IMPORTANT DISCLAIMER: This driver is not commercially supported by | |
10 | Sierra Wireless. Use at your own risk. | |
11 | ||
12 | This driver is free software; you can redistribute it and/or modify | |
13 | it under the terms of Version 2 of the GNU General Public License as | |
14 | published by the Free Software Foundation. | |
15 | ||
16 | Portions based on the option driver by Matthias Urlichs <smurf@smurf.noris.de> | |
17 | Whom based his on the Keyspan driver by Hugh Blemings <hugh@blemings.org> | |
033a3fb9 KL |
18 | */ |
19 | ||
238ebd13 | 20 | #define DRIVER_VERSION "v.1.3.7" |
40d2ff32 | 21 | #define DRIVER_AUTHOR "Kevin Lloyd, Elina Pasheva, Matthew Safar, Rory Filer" |
033a3fb9 | 22 | #define DRIVER_DESC "USB Driver for Sierra Wireless USB modems" |
69de51fd KL |
23 | |
24 | #include <linux/kernel.h> | |
033a3fb9 KL |
25 | #include <linux/jiffies.h> |
26 | #include <linux/errno.h> | |
69de51fd | 27 | #include <linux/tty.h> |
033a3fb9 | 28 | #include <linux/tty_flip.h> |
69de51fd KL |
29 | #include <linux/module.h> |
30 | #include <linux/usb.h> | |
a969888c | 31 | #include <linux/usb/serial.h> |
69de51fd | 32 | |
228426ed KL |
33 | #define SWIMS_USB_REQUEST_SetPower 0x00 |
34 | #define SWIMS_USB_REQUEST_SetNmea 0x07 | |
112225b1 | 35 | |
b748bb71 EP |
36 | #define N_IN_URB 8 |
37 | #define N_OUT_URB 64 | |
112225b1 KL |
38 | #define IN_BUFLEN 4096 |
39 | ||
40d2ff32 EP |
40 | #define MAX_TRANSFER (PAGE_SIZE - 512) |
41 | /* MAX_TRANSFER is chosen so that the VM is not stressed by | |
42 | allocations > PAGE_SIZE and the number of packets in a page | |
43 | is an integer 512 is the largest possible packet on EHCI */ | |
44 | ||
112225b1 | 45 | static int debug; |
228426ed | 46 | static int nmea; |
112225b1 | 47 | |
4db2299d EP |
48 | /* Used in interface blacklisting */ |
49 | struct sierra_iface_info { | |
50 | const u32 infolen; /* number of interface numbers on blacklist */ | |
51 | const u8 *ifaceinfo; /* pointer to the array holding the numbers */ | |
52 | }; | |
53 | ||
82a24e68 | 54 | static int sierra_set_power_state(struct usb_device *udev, __u16 swiState) |
112225b1 KL |
55 | { |
56 | int result; | |
5d44b361 | 57 | dev_dbg(&udev->dev, "%s\n", __func__); |
112225b1 | 58 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
228426ed | 59 | SWIMS_USB_REQUEST_SetPower, /* __u8 request */ |
f3564de4 | 60 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
61 | swiState, /* __u16 value */ |
62 | 0, /* __u16 index */ | |
63 | NULL, /* void *data */ | |
64 | 0, /* __u16 size */ | |
65 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
112225b1 KL |
66 | return result; |
67 | } | |
68 | ||
228426ed | 69 | static int sierra_vsc_set_nmea(struct usb_device *udev, __u16 enable) |
112225b1 KL |
70 | { |
71 | int result; | |
5d44b361 | 72 | dev_dbg(&udev->dev, "%s\n", __func__); |
228426ed KL |
73 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
74 | SWIMS_USB_REQUEST_SetNmea, /* __u8 request */ | |
f3564de4 | 75 | USB_TYPE_VENDOR, /* __u8 request type */ |
228426ed KL |
76 | enable, /* __u16 value */ |
77 | 0x0000, /* __u16 index */ | |
78 | NULL, /* void *data */ | |
79 | 0, /* __u16 size */ | |
80 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
81 | return result; | |
82 | } | |
83 | ||
84 | static int sierra_calc_num_ports(struct usb_serial *serial) | |
85 | { | |
9636b683 EP |
86 | int num_ports = 0; |
87 | u8 ifnum, numendpoints; | |
228426ed | 88 | |
9636b683 | 89 | dev_dbg(&serial->dev->dev, "%s\n", __func__); |
228426ed | 90 | |
9636b683 EP |
91 | ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber; |
92 | numendpoints = serial->interface->cur_altsetting->desc.bNumEndpoints; | |
228426ed | 93 | |
9636b683 EP |
94 | /* Dummy interface present on some SKUs should be ignored */ |
95 | if (ifnum == 0x99) | |
96 | num_ports = 0; | |
97 | else if (numendpoints <= 3) | |
98 | num_ports = 1; | |
99 | else | |
100 | num_ports = (numendpoints-1)/2; | |
101 | return num_ports; | |
228426ed KL |
102 | } |
103 | ||
4db2299d EP |
104 | static int is_blacklisted(const u8 ifnum, |
105 | const struct sierra_iface_info *blacklist) | |
106 | { | |
107 | const u8 *info; | |
108 | int i; | |
109 | ||
110 | if (blacklist) { | |
111 | info = blacklist->ifaceinfo; | |
112 | ||
113 | for (i = 0; i < blacklist->infolen; i++) { | |
114 | if (info[i] == ifnum) | |
115 | return 1; | |
116 | } | |
117 | } | |
118 | return 0; | |
119 | } | |
120 | ||
7106967e KL |
121 | static int sierra_calc_interface(struct usb_serial *serial) |
122 | { | |
4e0fee82 KL |
123 | int interface; |
124 | struct usb_interface *p_interface; | |
125 | struct usb_host_interface *p_host_interface; | |
5d44b361 | 126 | dev_dbg(&serial->dev->dev, "%s\n", __func__); |
7106967e | 127 | |
4e0fee82 KL |
128 | /* Get the interface structure pointer from the serial struct */ |
129 | p_interface = serial->interface; | |
7106967e | 130 | |
4e0fee82 KL |
131 | /* Get a pointer to the host interface structure */ |
132 | p_host_interface = p_interface->cur_altsetting; | |
7106967e | 133 | |
4e0fee82 KL |
134 | /* read the interface descriptor for this active altsetting |
135 | * to find out the interface number we are on | |
136 | */ | |
137 | interface = p_host_interface->desc.bInterfaceNumber; | |
7106967e | 138 | |
4e0fee82 | 139 | return interface; |
7106967e KL |
140 | } |
141 | ||
228426ed KL |
142 | static int sierra_probe(struct usb_serial *serial, |
143 | const struct usb_device_id *id) | |
144 | { | |
145 | int result = 0; | |
112225b1 | 146 | struct usb_device *udev; |
228426ed | 147 | u8 ifnum; |
112225b1 | 148 | |
228426ed | 149 | udev = serial->dev; |
9636b683 | 150 | dev_dbg(&udev->dev, "%s\n", __func__); |
112225b1 | 151 | |
e3173b22 | 152 | ifnum = sierra_calc_interface(serial); |
e3173b22 KL |
153 | /* |
154 | * If this interface supports more than 1 alternate | |
155 | * select the 2nd one | |
156 | */ | |
157 | if (serial->interface->num_altsetting == 2) { | |
158 | dev_dbg(&udev->dev, "Selecting alt setting for interface %d\n", | |
159 | ifnum); | |
160 | /* We know the alternate setting is 1 for the MC8785 */ | |
161 | usb_set_interface(udev, ifnum, 1); | |
162 | } | |
7106967e | 163 | |
4db2299d EP |
164 | /* ifnum could have changed - by calling usb_set_interface */ |
165 | ifnum = sierra_calc_interface(serial); | |
166 | ||
167 | if (is_blacklisted(ifnum, | |
168 | (struct sierra_iface_info *)id->driver_info)) { | |
169 | dev_dbg(&serial->dev->dev, | |
170 | "Ignoring blacklisted interface #%d\n", ifnum); | |
171 | return -ENODEV; | |
172 | } | |
173 | ||
228426ed | 174 | return result; |
112225b1 | 175 | } |
033a3fb9 | 176 | |
4db2299d EP |
177 | static const u8 direct_ip_non_serial_ifaces[] = { 7, 8, 9, 10, 11 }; |
178 | static const struct sierra_iface_info direct_ip_interface_blacklist = { | |
179 | .infolen = ARRAY_SIZE(direct_ip_non_serial_ifaces), | |
180 | .ifaceinfo = direct_ip_non_serial_ifaces, | |
181 | }; | |
182 | ||
69de51fd | 183 | static struct usb_device_id id_table [] = { |
c5f3d87d EP |
184 | { USB_DEVICE(0x0F3D, 0x0112) }, /* Airprime/Sierra PC 5220 */ |
185 | { USB_DEVICE(0x03F0, 0x1B1D) }, /* HP ev2200 a.k.a MC5720 */ | |
186 | { USB_DEVICE(0x03F0, 0x1E1D) }, /* HP hs2300 a.k.a MC8775 */ | |
187 | ||
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 */ |
69de51fd | 191 | { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ |
b9e13ac3 | 192 | { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */ |
c5f3d87d EP |
193 | { USB_DEVICE(0x1199, 0x0022) }, /* Sierra Wireless EM5725 */ |
194 | { USB_DEVICE(0x1199, 0x0024) }, /* Sierra Wireless MC5727 */ | |
195 | { USB_DEVICE(0x1199, 0x0224) }, /* Sierra Wireless MC5727 */ | |
69de51fd | 196 | { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ |
e43062dd | 197 | { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ |
c5f3d87d | 198 | { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */ |
9454c46a | 199 | { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */ |
c5f3d87d | 200 | /* Sierra Wireless C597 */ |
4e0fee82 | 201 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0023, 0xFF, 0xFF, 0xFF) }, |
c5f3d87d | 202 | /* Sierra Wireless T598 */ |
e3173b22 | 203 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0025, 0xFF, 0xFF, 0xFF) }, |
c5f3d87d EP |
204 | { USB_DEVICE(0x1199, 0x0026) }, /* Sierra Wireless T11 */ |
205 | { USB_DEVICE(0x1199, 0x0027) }, /* Sierra Wireless AC402 */ | |
206 | { USB_DEVICE(0x1199, 0x0028) }, /* Sierra Wireless MC5728 */ | |
207 | { USB_DEVICE(0x1199, 0x0029) }, /* Sierra Wireless Device */ | |
9454c46a | 208 | |
69de51fd KL |
209 | { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ |
210 | { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ | |
c5f3d87d EP |
211 | { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ |
212 | { USB_DEVICE(0x1199, 0x6805) }, /* Sierra Wireless MC8765 */ | |
213 | { USB_DEVICE(0x1199, 0x6808) }, /* Sierra Wireless MC8755 */ | |
214 | { USB_DEVICE(0x1199, 0x6809) }, /* Sierra Wireless MC8765 */ | |
9454c46a | 215 | { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ |
c5f3d87d | 216 | { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 */ |
7f170a63 | 217 | { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */ |
c5f3d87d | 218 | { USB_DEVICE(0x1199, 0x6816) }, /* Sierra Wireless MC8775 */ |
69de51fd | 219 | { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ |
7106967e | 220 | { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */ |
c5f3d87d | 221 | { USB_DEVICE(0x1199, 0x6822) }, /* Sierra Wireless AirCard 875E */ |
4e0fee82 KL |
222 | { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780 */ |
223 | { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781 */ | |
c5f3d87d EP |
224 | { USB_DEVICE(0x1199, 0x6834) }, /* Sierra Wireless MC8780 */ |
225 | { USB_DEVICE(0x1199, 0x6835) }, /* Sierra Wireless MC8781 */ | |
226 | { USB_DEVICE(0x1199, 0x6838) }, /* Sierra Wireless MC8780 */ | |
227 | { USB_DEVICE(0x1199, 0x6839) }, /* Sierra Wireless MC8781 */ | |
b77a5c70 | 228 | { USB_DEVICE(0x1199, 0x683A) }, /* Sierra Wireless MC8785 */ |
e3173b22 | 229 | { USB_DEVICE(0x1199, 0x683B) }, /* Sierra Wireless MC8785 Composite */ |
4db2299d EP |
230 | /* Sierra Wireless MC8790, MC8791, MC8792 Composite */ |
231 | { USB_DEVICE(0x1199, 0x683C) }, | |
232 | { USB_DEVICE(0x1199, 0x683D) }, /* Sierra Wireless MC8791 Composite */ | |
233 | /* Sierra Wireless MC8790, MC8791, MC8792 */ | |
234 | { USB_DEVICE(0x1199, 0x683E) }, | |
9454c46a KL |
235 | { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ |
236 | { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ | |
237 | { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */ | |
238 | { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */ | |
6835b32c | 239 | { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */ |
62aad3ab | 240 | { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ |
e3173b22 KL |
241 | { USB_DEVICE(0x1199, 0x6859) }, /* Sierra Wireless AirCard 885 E */ |
242 | { USB_DEVICE(0x1199, 0x685A) }, /* Sierra Wireless AirCard 885 E */ | |
243 | /* Sierra Wireless C885 */ | |
244 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6880, 0xFF, 0xFF, 0xFF)}, | |
c5f3d87d | 245 | /* Sierra Wireless C888, Air Card 501, USB 303, USB 304 */ |
e3173b22 | 246 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6890, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 247 | /* Sierra Wireless C22/C33 */ |
73b2c205 | 248 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6891, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 249 | /* Sierra Wireless HSPA Non-Composite Device */ |
e3173b22 | 250 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6892, 0xFF, 0xFF, 0xFF)}, |
c5f3d87d | 251 | { USB_DEVICE(0x1199, 0x6893) }, /* Sierra Wireless Device */ |
4db2299d EP |
252 | { USB_DEVICE(0x1199, 0x68A3), /* Sierra Wireless Direct IP modems */ |
253 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
254 | }, | |
255 | ||
033a3fb9 KL |
256 | { } |
257 | }; | |
964ee1de | 258 | MODULE_DEVICE_TABLE(usb, id_table); |
033a3fb9 | 259 | |
69de51fd | 260 | static struct usb_driver sierra_driver = { |
033a3fb9 | 261 | .name = "sierra", |
228426ed | 262 | .probe = usb_serial_probe, |
033a3fb9 KL |
263 | .disconnect = usb_serial_disconnect, |
264 | .id_table = id_table, | |
964ee1de | 265 | .no_dynamic_id = 1, |
033a3fb9 KL |
266 | }; |
267 | ||
033a3fb9 | 268 | struct sierra_port_private { |
17c23274 GKH |
269 | spinlock_t lock; /* lock the structure */ |
270 | int outstanding_urbs; /* number of out urbs in flight */ | |
271 | ||
4f4f9c53 | 272 | /* Input endpoints and buffers for this port */ |
033a3fb9 | 273 | struct urb *in_urbs[N_IN_URB]; |
033a3fb9 KL |
274 | |
275 | /* Settings for the port */ | |
276 | int rts_state; /* Handshaking pins (outputs) */ | |
277 | int dtr_state; | |
278 | int cts_state; /* Handshaking pins (inputs) */ | |
279 | int dsr_state; | |
280 | int dcd_state; | |
281 | int ri_state; | |
033a3fb9 KL |
282 | }; |
283 | ||
335f8514 | 284 | static int sierra_send_setup(struct usb_serial_port *port) |
69de51fd | 285 | { |
964ee1de GKH |
286 | struct usb_serial *serial = port->serial; |
287 | struct sierra_port_private *portdata; | |
228426ed | 288 | __u16 interface = 0; |
335f8514 | 289 | int val = 0; |
033a3fb9 | 290 | |
5d44b361 | 291 | dev_dbg(&port->dev, "%s\n", __func__); |
033a3fb9 | 292 | |
964ee1de | 293 | portdata = usb_get_serial_port_data(port); |
033a3fb9 | 294 | |
335f8514 AC |
295 | if (portdata->dtr_state) |
296 | val |= 0x01; | |
297 | if (portdata->rts_state) | |
298 | val |= 0x02; | |
299 | ||
300 | /* If composite device then properly report interface */ | |
00b040de | 301 | if (serial->num_ports == 1) { |
335f8514 | 302 | interface = sierra_calc_interface(serial); |
00b040de AC |
303 | /* Control message is sent only to interfaces with |
304 | * interrupt_in endpoints | |
305 | */ | |
306 | if (port->interrupt_in_urb) { | |
307 | /* send control message */ | |
308 | return usb_control_msg(serial->dev, | |
309 | usb_rcvctrlpipe(serial->dev, 0), | |
310 | 0x22, 0x21, val, interface, | |
311 | NULL, 0, USB_CTRL_SET_TIMEOUT); | |
312 | } | |
313 | } | |
335f8514 AC |
314 | |
315 | /* Otherwise the need to do non-composite mapping */ | |
316 | else { | |
317 | if (port->bulk_out_endpointAddress == 2) | |
318 | interface = 0; | |
319 | else if (port->bulk_out_endpointAddress == 4) | |
320 | interface = 1; | |
321 | else if (port->bulk_out_endpointAddress == 5) | |
322 | interface = 2; | |
00b040de | 323 | return usb_control_msg(serial->dev, |
335f8514 AC |
324 | usb_rcvctrlpipe(serial->dev, 0), |
325 | 0x22, 0x21, val, interface, | |
326 | NULL, 0, USB_CTRL_SET_TIMEOUT); | |
00b040de | 327 | } |
964ee1de | 328 | return 0; |
69de51fd KL |
329 | } |
330 | ||
95da310e AC |
331 | static void sierra_set_termios(struct tty_struct *tty, |
332 | struct usb_serial_port *port, struct ktermios *old_termios) | |
033a3fb9 | 333 | { |
5d44b361 | 334 | dev_dbg(&port->dev, "%s\n", __func__); |
95da310e | 335 | tty_termios_copy_hw(tty->termios, old_termios); |
335f8514 | 336 | sierra_send_setup(port); |
033a3fb9 KL |
337 | } |
338 | ||
95da310e | 339 | static int sierra_tiocmget(struct tty_struct *tty, struct file *file) |
033a3fb9 | 340 | { |
95da310e | 341 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
342 | unsigned int value; |
343 | struct sierra_port_private *portdata; | |
344 | ||
5d44b361 | 345 | dev_dbg(&port->dev, "%s\n", __func__); |
033a3fb9 KL |
346 | portdata = usb_get_serial_port_data(port); |
347 | ||
348 | value = ((portdata->rts_state) ? TIOCM_RTS : 0) | | |
349 | ((portdata->dtr_state) ? TIOCM_DTR : 0) | | |
350 | ((portdata->cts_state) ? TIOCM_CTS : 0) | | |
351 | ((portdata->dsr_state) ? TIOCM_DSR : 0) | | |
352 | ((portdata->dcd_state) ? TIOCM_CAR : 0) | | |
353 | ((portdata->ri_state) ? TIOCM_RNG : 0); | |
354 | ||
355 | return value; | |
356 | } | |
357 | ||
95da310e | 358 | static int sierra_tiocmset(struct tty_struct *tty, struct file *file, |
033a3fb9 KL |
359 | unsigned int set, unsigned int clear) |
360 | { | |
95da310e | 361 | struct usb_serial_port *port = tty->driver_data; |
033a3fb9 KL |
362 | struct sierra_port_private *portdata; |
363 | ||
364 | portdata = usb_get_serial_port_data(port); | |
365 | ||
366 | if (set & TIOCM_RTS) | |
367 | portdata->rts_state = 1; | |
368 | if (set & TIOCM_DTR) | |
369 | portdata->dtr_state = 1; | |
370 | ||
371 | if (clear & TIOCM_RTS) | |
372 | portdata->rts_state = 0; | |
373 | if (clear & TIOCM_DTR) | |
374 | portdata->dtr_state = 0; | |
335f8514 | 375 | return sierra_send_setup(port); |
033a3fb9 KL |
376 | } |
377 | ||
b9a44bc1 EP |
378 | static void sierra_release_urb(struct urb *urb) |
379 | { | |
380 | struct usb_serial_port *port; | |
381 | if (urb) { | |
382 | port = urb->context; | |
383 | dev_dbg(&port->dev, "%s: %p\n", __func__, urb); | |
384 | kfree(urb->transfer_buffer); | |
385 | usb_free_urb(urb); | |
386 | } | |
387 | } | |
388 | ||
17c23274 GKH |
389 | static void sierra_outdat_callback(struct urb *urb) |
390 | { | |
391 | struct usb_serial_port *port = urb->context; | |
392 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
393 | int status = urb->status; | |
394 | unsigned long flags; | |
395 | ||
5d44b361 | 396 | dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number); |
17c23274 GKH |
397 | |
398 | /* free up the transfer buffer, as usb_free_urb() does not do this */ | |
399 | kfree(urb->transfer_buffer); | |
400 | ||
401 | if (status) | |
7384a922 | 402 | dev_dbg(&port->dev, "%s - nonzero write bulk status " |
5d44b361 | 403 | "received: %d\n", __func__, status); |
17c23274 GKH |
404 | |
405 | spin_lock_irqsave(&portdata->lock, flags); | |
406 | --portdata->outstanding_urbs; | |
407 | spin_unlock_irqrestore(&portdata->lock, flags); | |
408 | ||
409 | usb_serial_port_softint(port); | |
410 | } | |
411 | ||
033a3fb9 | 412 | /* Write */ |
95da310e AC |
413 | static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port, |
414 | const unsigned char *buf, int count) | |
033a3fb9 | 415 | { |
17c23274 GKH |
416 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
417 | struct usb_serial *serial = port->serial; | |
418 | unsigned long flags; | |
419 | unsigned char *buffer; | |
420 | struct urb *urb; | |
40d2ff32 EP |
421 | size_t writesize = min((size_t)count, (size_t)MAX_TRANSFER); |
422 | int retval = 0; | |
423 | ||
424 | /* verify that we actually have some data to write */ | |
425 | if (count == 0) | |
426 | return 0; | |
033a3fb9 KL |
427 | |
428 | portdata = usb_get_serial_port_data(port); | |
429 | ||
0b10395a | 430 | dev_dbg(&port->dev, "%s: write (%zd bytes)\n", __func__, writesize); |
033a3fb9 | 431 | |
17c23274 | 432 | spin_lock_irqsave(&portdata->lock, flags); |
40d2ff32 EP |
433 | dev_dbg(&port->dev, "%s - outstanding_urbs: %d\n", __func__, |
434 | portdata->outstanding_urbs); | |
17c23274 GKH |
435 | if (portdata->outstanding_urbs > N_OUT_URB) { |
436 | spin_unlock_irqrestore(&portdata->lock, flags); | |
7384a922 | 437 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 GKH |
438 | return 0; |
439 | } | |
440 | portdata->outstanding_urbs++; | |
40d2ff32 EP |
441 | dev_dbg(&port->dev, "%s - 1, outstanding_urbs: %d\n", __func__, |
442 | portdata->outstanding_urbs); | |
17c23274 GKH |
443 | spin_unlock_irqrestore(&portdata->lock, flags); |
444 | ||
40d2ff32 | 445 | buffer = kmalloc(writesize, GFP_ATOMIC); |
17c23274 GKH |
446 | if (!buffer) { |
447 | dev_err(&port->dev, "out of memory\n"); | |
40d2ff32 | 448 | retval = -ENOMEM; |
17c23274 GKH |
449 | goto error_no_buffer; |
450 | } | |
033a3fb9 | 451 | |
17c23274 GKH |
452 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
453 | if (!urb) { | |
454 | dev_err(&port->dev, "no more free urbs\n"); | |
40d2ff32 | 455 | retval = -ENOMEM; |
17c23274 GKH |
456 | goto error_no_urb; |
457 | } | |
033a3fb9 | 458 | |
40d2ff32 | 459 | memcpy(buffer, buf, writesize); |
033a3fb9 | 460 | |
40d2ff32 | 461 | usb_serial_debug_data(debug, &port->dev, __func__, writesize, buffer); |
17c23274 GKH |
462 | |
463 | usb_fill_bulk_urb(urb, serial->dev, | |
464 | usb_sndbulkpipe(serial->dev, | |
465 | port->bulk_out_endpointAddress), | |
40d2ff32 | 466 | buffer, writesize, sierra_outdat_callback, port); |
17c23274 | 467 | |
238ebd13 EP |
468 | /* Handle the need to send a zero length packet */ |
469 | urb->transfer_flags |= URB_ZERO_PACKET; | |
470 | ||
17c23274 | 471 | /* send it down the pipe */ |
40d2ff32 EP |
472 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
473 | if (retval) { | |
17c23274 | 474 | dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " |
40d2ff32 | 475 | "with status = %d\n", __func__, retval); |
17c23274 | 476 | goto error; |
033a3fb9 KL |
477 | } |
478 | ||
17c23274 GKH |
479 | /* we are done with this urb, so let the host driver |
480 | * really free it when it is finished with it */ | |
481 | usb_free_urb(urb); | |
482 | ||
40d2ff32 | 483 | return writesize; |
17c23274 GKH |
484 | error: |
485 | usb_free_urb(urb); | |
486 | error_no_urb: | |
487 | kfree(buffer); | |
488 | error_no_buffer: | |
489 | spin_lock_irqsave(&portdata->lock, flags); | |
490 | --portdata->outstanding_urbs; | |
40d2ff32 EP |
491 | dev_dbg(&port->dev, "%s - 2. outstanding_urbs: %d\n", __func__, |
492 | portdata->outstanding_urbs); | |
17c23274 | 493 | spin_unlock_irqrestore(&portdata->lock, flags); |
40d2ff32 | 494 | return retval; |
033a3fb9 KL |
495 | } |
496 | ||
497 | static void sierra_indat_callback(struct urb *urb) | |
498 | { | |
499 | int err; | |
500 | int endpoint; | |
501 | struct usb_serial_port *port; | |
502 | struct tty_struct *tty; | |
503 | unsigned char *data = urb->transfer_buffer; | |
17dd2215 | 504 | int status = urb->status; |
033a3fb9 | 505 | |
033a3fb9 | 506 | endpoint = usb_pipeendpoint(urb->pipe); |
b0cda8c5 EP |
507 | port = urb->context; |
508 | ||
509 | dev_dbg(&port->dev, "%s: %p\n", __func__, urb); | |
033a3fb9 | 510 | |
17dd2215 | 511 | if (status) { |
7384a922 | 512 | dev_dbg(&port->dev, "%s: nonzero status: %d on" |
5d44b361 | 513 | " endpoint %02x\n", __func__, status, endpoint); |
033a3fb9 | 514 | } else { |
033a3fb9 | 515 | if (urb->actual_length) { |
d95186d1 | 516 | tty = tty_port_tty_get(&port->port); |
b0cda8c5 | 517 | |
033a3fb9 KL |
518 | tty_buffer_request_room(tty, urb->actual_length); |
519 | tty_insert_flip_string(tty, data, urb->actual_length); | |
520 | tty_flip_buffer_push(tty); | |
b0cda8c5 | 521 | |
4a90f09b | 522 | tty_kref_put(tty); |
b0cda8c5 EP |
523 | usb_serial_debug_data(debug, &port->dev, __func__, |
524 | urb->actual_length, data); | |
525 | } else { | |
7384a922 | 526 | dev_dbg(&port->dev, "%s: empty read urb" |
5d44b361 | 527 | " received\n", __func__); |
033a3fb9 KL |
528 | } |
529 | } | |
b0cda8c5 EP |
530 | |
531 | /* Resubmit urb so we continue receiving */ | |
532 | if (port->port.count && status != -ESHUTDOWN && status != -EPERM) { | |
533 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
534 | if (err) | |
535 | dev_err(&port->dev, "resubmit read urb failed." | |
536 | "(%d)\n", err); | |
537 | } | |
538 | ||
033a3fb9 KL |
539 | return; |
540 | } | |
541 | ||
033a3fb9 KL |
542 | static void sierra_instat_callback(struct urb *urb) |
543 | { | |
544 | int err; | |
17dd2215 | 545 | int status = urb->status; |
cdc97792 | 546 | struct usb_serial_port *port = urb->context; |
033a3fb9 KL |
547 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
548 | struct usb_serial *serial = port->serial; | |
549 | ||
5d44b361 | 550 | dev_dbg(&port->dev, "%s: urb %p port %p has data %p\n", __func__, |
7384a922 | 551 | urb, port, portdata); |
033a3fb9 | 552 | |
17dd2215 | 553 | if (status == 0) { |
033a3fb9 KL |
554 | struct usb_ctrlrequest *req_pkt = |
555 | (struct usb_ctrlrequest *)urb->transfer_buffer; | |
556 | ||
557 | if (!req_pkt) { | |
7384a922 KL |
558 | dev_dbg(&port->dev, "%s: NULL req_pkt\n", |
559 | __func__); | |
033a3fb9 KL |
560 | return; |
561 | } | |
562 | if ((req_pkt->bRequestType == 0xA1) && | |
563 | (req_pkt->bRequest == 0x20)) { | |
564 | int old_dcd_state; | |
565 | unsigned char signals = *((unsigned char *) | |
566 | urb->transfer_buffer + | |
567 | sizeof(struct usb_ctrlrequest)); | |
4a90f09b | 568 | struct tty_struct *tty; |
033a3fb9 | 569 | |
5d44b361 | 570 | dev_dbg(&port->dev, "%s: signal x%x\n", __func__, |
7384a922 | 571 | signals); |
033a3fb9 KL |
572 | |
573 | old_dcd_state = portdata->dcd_state; | |
574 | portdata->cts_state = 1; | |
575 | portdata->dcd_state = ((signals & 0x01) ? 1 : 0); | |
576 | portdata->dsr_state = ((signals & 0x02) ? 1 : 0); | |
577 | portdata->ri_state = ((signals & 0x08) ? 1 : 0); | |
578 | ||
4a90f09b AC |
579 | tty = tty_port_tty_get(&port->port); |
580 | if (tty && !C_CLOCAL(tty) && | |
033a3fb9 | 581 | old_dcd_state && !portdata->dcd_state) |
4a90f09b AC |
582 | tty_hangup(tty); |
583 | tty_kref_put(tty); | |
033a3fb9 | 584 | } else { |
5d44b361 | 585 | dev_dbg(&port->dev, "%s: type %x req %x\n", |
7384a922 KL |
586 | __func__, req_pkt->bRequestType, |
587 | req_pkt->bRequest); | |
033a3fb9 KL |
588 | } |
589 | } else | |
5d44b361 | 590 | dev_dbg(&port->dev, "%s: error %d\n", __func__, status); |
033a3fb9 KL |
591 | |
592 | /* Resubmit urb so we continue receiving IRQ data */ | |
c76a23da | 593 | if (port->port.count && status != -ESHUTDOWN && status != -ENOENT) { |
033a3fb9 KL |
594 | urb->dev = serial->dev; |
595 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
596 | if (err) | |
c76a23da EP |
597 | dev_err(&port->dev, "%s: resubmit intr urb " |
598 | "failed. (%d)\n", __func__, err); | |
033a3fb9 KL |
599 | } |
600 | } | |
601 | ||
95da310e | 602 | static int sierra_write_room(struct tty_struct *tty) |
033a3fb9 | 603 | { |
95da310e | 604 | struct usb_serial_port *port = tty->driver_data; |
17c23274 GKH |
605 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
606 | unsigned long flags; | |
033a3fb9 | 607 | |
5d44b361 | 608 | dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number); |
033a3fb9 | 609 | |
17c23274 GKH |
610 | /* try to give a good number back based on if we have any free urbs at |
611 | * this point in time */ | |
612 | spin_lock_irqsave(&portdata->lock, flags); | |
613 | if (portdata->outstanding_urbs > N_OUT_URB * 2 / 3) { | |
614 | spin_unlock_irqrestore(&portdata->lock, flags); | |
7384a922 | 615 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); |
17c23274 | 616 | return 0; |
033a3fb9 | 617 | } |
17c23274 | 618 | spin_unlock_irqrestore(&portdata->lock, flags); |
033a3fb9 | 619 | |
17c23274 | 620 | return 2048; |
033a3fb9 KL |
621 | } |
622 | ||
b9a44bc1 | 623 | static void sierra_stop_rx_urbs(struct usb_serial_port *port) |
033a3fb9 | 624 | { |
9e85c5f6 | 625 | int i; |
b9a44bc1 | 626 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); |
033a3fb9 | 627 | |
b9a44bc1 EP |
628 | for (i = 0; i < ARRAY_SIZE(portdata->in_urbs); i++) |
629 | usb_kill_urb(portdata->in_urbs[i]); | |
033a3fb9 | 630 | |
b9a44bc1 EP |
631 | usb_kill_urb(port->interrupt_in_urb); |
632 | } | |
033a3fb9 | 633 | |
b9a44bc1 EP |
634 | static int sierra_submit_rx_urbs(struct usb_serial_port *port, gfp_t mem_flags) |
635 | { | |
636 | int ok_cnt; | |
637 | int err = -EINVAL; | |
638 | int i; | |
639 | struct urb *urb; | |
640 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
033a3fb9 | 641 | |
b9a44bc1 EP |
642 | ok_cnt = 0; |
643 | for (i = 0; i < ARRAY_SIZE(portdata->in_urbs); i++) { | |
033a3fb9 | 644 | urb = portdata->in_urbs[i]; |
9e85c5f6 | 645 | if (!urb) |
033a3fb9 | 646 | continue; |
b9a44bc1 EP |
647 | err = usb_submit_urb(urb, mem_flags); |
648 | if (err) { | |
649 | dev_err(&port->dev, "%s: submit urb failed: %d\n", | |
650 | __func__, err); | |
651 | } else { | |
652 | ok_cnt++; | |
033a3fb9 | 653 | } |
b9a44bc1 | 654 | } |
033a3fb9 | 655 | |
b9a44bc1 EP |
656 | if (ok_cnt && port->interrupt_in_urb) { |
657 | err = usb_submit_urb(port->interrupt_in_urb, mem_flags); | |
658 | if (err) { | |
659 | dev_err(&port->dev, "%s: submit intr urb failed: %d\n", | |
660 | __func__, err); | |
033a3fb9 KL |
661 | } |
662 | } | |
663 | ||
b9a44bc1 EP |
664 | if (ok_cnt > 0) /* at least one rx urb submitted */ |
665 | return 0; | |
666 | else | |
667 | return err; | |
668 | } | |
669 | ||
670 | static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint, | |
671 | int dir, void *ctx, int len, | |
672 | gfp_t mem_flags, | |
673 | usb_complete_t callback) | |
674 | { | |
675 | struct urb *urb; | |
676 | u8 *buf; | |
677 | ||
678 | if (endpoint == -1) | |
679 | return NULL; | |
033a3fb9 | 680 | |
b9a44bc1 EP |
681 | urb = usb_alloc_urb(0, mem_flags); |
682 | if (urb == NULL) { | |
683 | dev_dbg(&serial->dev->dev, "%s: alloc for endpoint %d failed\n", | |
684 | __func__, endpoint); | |
685 | return NULL; | |
9e85c5f6 | 686 | } |
b9a44bc1 EP |
687 | |
688 | buf = kmalloc(len, mem_flags); | |
689 | if (buf) { | |
690 | /* Fill URB using supplied data */ | |
691 | usb_fill_bulk_urb(urb, serial->dev, | |
692 | usb_sndbulkpipe(serial->dev, endpoint) | dir, | |
693 | buf, len, callback, ctx); | |
694 | ||
695 | /* debug */ | |
696 | dev_dbg(&serial->dev->dev, "%s %c u : %p d:%p\n", __func__, | |
697 | dir == USB_DIR_IN ? 'i' : 'o', urb, buf); | |
698 | } else { | |
699 | dev_dbg(&serial->dev->dev, "%s %c u:%p d:%p\n", __func__, | |
700 | dir == USB_DIR_IN ? 'i' : 'o', urb, buf); | |
701 | ||
702 | sierra_release_urb(urb); | |
703 | urb = NULL; | |
704 | } | |
705 | ||
706 | return urb; | |
033a3fb9 KL |
707 | } |
708 | ||
b9a44bc1 | 709 | static void sierra_close(struct usb_serial_port *port) |
033a3fb9 | 710 | { |
b9a44bc1 | 711 | int i; |
033a3fb9 KL |
712 | struct usb_serial *serial = port->serial; |
713 | struct sierra_port_private *portdata; | |
714 | ||
b9a44bc1 | 715 | dev_dbg(&port->dev, "%s\n", __func__); |
033a3fb9 | 716 | portdata = usb_get_serial_port_data(port); |
b9a44bc1 EP |
717 | |
718 | portdata->rts_state = 0; | |
719 | portdata->dtr_state = 0; | |
033a3fb9 KL |
720 | |
721 | if (serial->dev) { | |
e33fe4d8 ON |
722 | mutex_lock(&serial->disc_mutex); |
723 | if (!serial->disconnected) | |
335f8514 | 724 | sierra_send_setup(port); |
e33fe4d8 | 725 | mutex_unlock(&serial->disc_mutex); |
b9a44bc1 EP |
726 | |
727 | /* Stop reading urbs */ | |
728 | sierra_stop_rx_urbs(port); | |
729 | /* .. and release them */ | |
730 | for (i = 0; i < N_IN_URB; i++) { | |
731 | sierra_release_urb(portdata->in_urbs[i]); | |
732 | portdata->in_urbs[i] = NULL; | |
733 | } | |
335f8514 AC |
734 | } |
735 | } | |
736 | ||
b9a44bc1 EP |
737 | static int sierra_open(struct tty_struct *tty, |
738 | struct usb_serial_port *port, struct file *filp) | |
335f8514 | 739 | { |
b9a44bc1 EP |
740 | struct sierra_port_private *portdata; |
741 | struct usb_serial *serial = port->serial; | |
335f8514 | 742 | int i; |
b9a44bc1 EP |
743 | int err; |
744 | int endpoint; | |
745 | struct urb *urb; | |
746 | ||
747 | portdata = usb_get_serial_port_data(port); | |
748 | ||
5d44b361 | 749 | dev_dbg(&port->dev, "%s\n", __func__); |
b9a44bc1 EP |
750 | |
751 | /* Set some sane defaults */ | |
752 | portdata->rts_state = 1; | |
753 | portdata->dtr_state = 1; | |
754 | ||
755 | ||
756 | endpoint = port->bulk_in_endpointAddress; | |
757 | for (i = 0; i < ARRAY_SIZE(portdata->in_urbs); i++) { | |
758 | urb = sierra_setup_urb(serial, endpoint, USB_DIR_IN, port, | |
759 | IN_BUFLEN, GFP_KERNEL, | |
760 | sierra_indat_callback); | |
761 | portdata->in_urbs[i] = urb; | |
762 | } | |
763 | /* clear halt condition */ | |
764 | usb_clear_halt(serial->dev, | |
765 | usb_sndbulkpipe(serial->dev, endpoint) | USB_DIR_IN); | |
766 | ||
767 | err = sierra_submit_rx_urbs(port, GFP_KERNEL); | |
768 | if (err) { | |
769 | /* get rid of everything as in close */ | |
770 | sierra_close(port); | |
771 | return err; | |
772 | } | |
773 | sierra_send_setup(port); | |
774 | ||
775 | return 0; | |
776 | } | |
777 | ||
778 | ||
779 | static void sierra_dtr_rts(struct usb_serial_port *port, int on) | |
780 | { | |
335f8514 AC |
781 | struct usb_serial *serial = port->serial; |
782 | struct sierra_port_private *portdata; | |
033a3fb9 | 783 | |
335f8514 | 784 | portdata = usb_get_serial_port_data(port); |
b9a44bc1 EP |
785 | portdata->rts_state = on; |
786 | portdata->dtr_state = on; | |
335f8514 AC |
787 | |
788 | if (serial->dev) { | |
b9a44bc1 EP |
789 | mutex_lock(&serial->disc_mutex); |
790 | if (!serial->disconnected) | |
791 | sierra_send_setup(port); | |
792 | mutex_unlock(&serial->disc_mutex); | |
033a3fb9 | 793 | } |
033a3fb9 KL |
794 | } |
795 | ||
033a3fb9 KL |
796 | static int sierra_startup(struct usb_serial *serial) |
797 | { | |
033a3fb9 KL |
798 | struct usb_serial_port *port; |
799 | struct sierra_port_private *portdata; | |
9e85c5f6 | 800 | int i; |
033a3fb9 | 801 | |
5d44b361 | 802 | dev_dbg(&serial->dev->dev, "%s\n", __func__); |
033a3fb9 | 803 | |
228426ed | 804 | /* Set Device mode to D0 */ |
112225b1 KL |
805 | sierra_set_power_state(serial->dev, 0x0000); |
806 | ||
228426ed KL |
807 | /* Check NMEA and set */ |
808 | if (nmea) | |
809 | sierra_vsc_set_nmea(serial->dev, 1); | |
810 | ||
033a3fb9 KL |
811 | /* Now setup per port private data */ |
812 | for (i = 0; i < serial->num_ports; i++) { | |
813 | port = serial->port[i]; | |
814 | portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); | |
815 | if (!portdata) { | |
7384a922 | 816 | dev_dbg(&port->dev, "%s: kmalloc for " |
5d44b361 | 817 | "sierra_port_private (%d) failed!.\n", |
7384a922 | 818 | __func__, i); |
17c23274 | 819 | return -ENOMEM; |
033a3fb9 | 820 | } |
17c23274 | 821 | spin_lock_init(&portdata->lock); |
b9a44bc1 | 822 | /* Set the port private data pointer */ |
033a3fb9 | 823 | usb_set_serial_port_data(port, portdata); |
033a3fb9 KL |
824 | } |
825 | ||
17c23274 | 826 | return 0; |
033a3fb9 KL |
827 | } |
828 | ||
7bae0a07 | 829 | static void sierra_release(struct usb_serial *serial) |
033a3fb9 | 830 | { |
b9a44bc1 | 831 | int i; |
033a3fb9 KL |
832 | struct usb_serial_port *port; |
833 | struct sierra_port_private *portdata; | |
834 | ||
5d44b361 | 835 | dev_dbg(&serial->dev->dev, "%s\n", __func__); |
033a3fb9 | 836 | |
033a3fb9 KL |
837 | for (i = 0; i < serial->num_ports; ++i) { |
838 | port = serial->port[i]; | |
f094e4f3 GKH |
839 | if (!port) |
840 | continue; | |
033a3fb9 | 841 | portdata = usb_get_serial_port_data(port); |
f094e4f3 GKH |
842 | if (!portdata) |
843 | continue; | |
9e85c5f6 | 844 | kfree(portdata); |
033a3fb9 KL |
845 | } |
846 | } | |
847 | ||
228426ed | 848 | static struct usb_serial_driver sierra_device = { |
964ee1de GKH |
849 | .driver = { |
850 | .owner = THIS_MODULE, | |
4e0fee82 | 851 | .name = "sierra", |
964ee1de | 852 | }, |
228426ed KL |
853 | .description = "Sierra USB modem", |
854 | .id_table = id_table, | |
d9b1b787 | 855 | .usb_driver = &sierra_driver, |
228426ed KL |
856 | .calc_num_ports = sierra_calc_num_ports, |
857 | .probe = sierra_probe, | |
964ee1de GKH |
858 | .open = sierra_open, |
859 | .close = sierra_close, | |
335f8514 | 860 | .dtr_rts = sierra_dtr_rts, |
964ee1de GKH |
861 | .write = sierra_write, |
862 | .write_room = sierra_write_room, | |
964ee1de | 863 | .set_termios = sierra_set_termios, |
964ee1de GKH |
864 | .tiocmget = sierra_tiocmget, |
865 | .tiocmset = sierra_tiocmset, | |
866 | .attach = sierra_startup, | |
7bae0a07 | 867 | .release = sierra_release, |
964ee1de GKH |
868 | .read_int_callback = sierra_instat_callback, |
869 | }; | |
870 | ||
871 | /* Functions used by new usb-serial code. */ | |
872 | static int __init sierra_init(void) | |
873 | { | |
874 | int retval; | |
228426ed | 875 | retval = usb_serial_register(&sierra_device); |
964ee1de | 876 | if (retval) |
228426ed | 877 | goto failed_device_register; |
964ee1de GKH |
878 | |
879 | ||
880 | retval = usb_register(&sierra_driver); | |
881 | if (retval) | |
882 | goto failed_driver_register; | |
883 | ||
c197a8db GKH |
884 | printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" |
885 | DRIVER_DESC "\n"); | |
964ee1de GKH |
886 | |
887 | return 0; | |
888 | ||
889 | failed_driver_register: | |
228426ed KL |
890 | usb_serial_deregister(&sierra_device); |
891 | failed_device_register: | |
964ee1de GKH |
892 | return retval; |
893 | } | |
894 | ||
895 | static void __exit sierra_exit(void) | |
896 | { | |
9660ea36 | 897 | usb_deregister(&sierra_driver); |
228426ed | 898 | usb_serial_deregister(&sierra_device); |
964ee1de GKH |
899 | } |
900 | ||
901 | module_init(sierra_init); | |
902 | module_exit(sierra_exit); | |
903 | ||
033a3fb9 KL |
904 | MODULE_AUTHOR(DRIVER_AUTHOR); |
905 | MODULE_DESCRIPTION(DRIVER_DESC); | |
906 | MODULE_VERSION(DRIVER_VERSION); | |
69de51fd | 907 | MODULE_LICENSE("GPL"); |
033a3fb9 | 908 | |
4e0fee82 | 909 | module_param(nmea, bool, S_IRUGO | S_IWUSR); |
228426ed KL |
910 | MODULE_PARM_DESC(nmea, "NMEA streaming"); |
911 | ||
033a3fb9 KL |
912 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
913 | MODULE_PARM_DESC(debug, "Debug messages"); |