]>
Commit | Line | Data |
---|---|---|
1 | /* | |
2 | USB Driver for Sierra Wireless | |
3 | ||
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> | |
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> | |
18 | */ | |
19 | /* Uncomment to log function calls */ | |
20 | /* #define DEBUG */ | |
21 | #define DRIVER_VERSION "v.1.7.16" | |
22 | #define DRIVER_AUTHOR "Kevin Lloyd, Elina Pasheva, Matthew Safar, Rory Filer" | |
23 | #define DRIVER_DESC "USB Driver for Sierra Wireless USB modems" | |
24 | ||
25 | #include <linux/kernel.h> | |
26 | #include <linux/jiffies.h> | |
27 | #include <linux/errno.h> | |
28 | #include <linux/tty.h> | |
29 | #include <linux/slab.h> | |
30 | #include <linux/tty_flip.h> | |
31 | #include <linux/module.h> | |
32 | #include <linux/usb.h> | |
33 | #include <linux/usb/serial.h> | |
34 | ||
35 | #define SWIMS_USB_REQUEST_SetPower 0x00 | |
36 | #define SWIMS_USB_REQUEST_SetNmea 0x07 | |
37 | ||
38 | #define N_IN_URB_HM 8 | |
39 | #define N_OUT_URB_HM 64 | |
40 | #define N_IN_URB 4 | |
41 | #define N_OUT_URB 4 | |
42 | #define IN_BUFLEN 4096 | |
43 | ||
44 | #define MAX_TRANSFER (PAGE_SIZE - 512) | |
45 | /* MAX_TRANSFER is chosen so that the VM is not stressed by | |
46 | allocations > PAGE_SIZE and the number of packets in a page | |
47 | is an integer 512 is the largest possible packet on EHCI */ | |
48 | ||
49 | static int debug; | |
50 | static int nmea; | |
51 | ||
52 | /* Used in interface blacklisting */ | |
53 | struct sierra_iface_info { | |
54 | const u32 infolen; /* number of interface numbers on blacklist */ | |
55 | const u8 *ifaceinfo; /* pointer to the array holding the numbers */ | |
56 | }; | |
57 | ||
58 | struct sierra_intf_private { | |
59 | spinlock_t susp_lock; | |
60 | unsigned int suspended:1; | |
61 | int in_flight; | |
62 | }; | |
63 | ||
64 | static int sierra_set_power_state(struct usb_device *udev, __u16 swiState) | |
65 | { | |
66 | int result; | |
67 | dev_dbg(&udev->dev, "%s\n", __func__); | |
68 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), | |
69 | SWIMS_USB_REQUEST_SetPower, /* __u8 request */ | |
70 | USB_TYPE_VENDOR, /* __u8 request type */ | |
71 | swiState, /* __u16 value */ | |
72 | 0, /* __u16 index */ | |
73 | NULL, /* void *data */ | |
74 | 0, /* __u16 size */ | |
75 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
76 | return result; | |
77 | } | |
78 | ||
79 | static int sierra_vsc_set_nmea(struct usb_device *udev, __u16 enable) | |
80 | { | |
81 | int result; | |
82 | dev_dbg(&udev->dev, "%s\n", __func__); | |
83 | result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), | |
84 | SWIMS_USB_REQUEST_SetNmea, /* __u8 request */ | |
85 | USB_TYPE_VENDOR, /* __u8 request type */ | |
86 | enable, /* __u16 value */ | |
87 | 0x0000, /* __u16 index */ | |
88 | NULL, /* void *data */ | |
89 | 0, /* __u16 size */ | |
90 | USB_CTRL_SET_TIMEOUT); /* int timeout */ | |
91 | return result; | |
92 | } | |
93 | ||
94 | static int sierra_calc_num_ports(struct usb_serial *serial) | |
95 | { | |
96 | int num_ports = 0; | |
97 | u8 ifnum, numendpoints; | |
98 | ||
99 | dev_dbg(&serial->dev->dev, "%s\n", __func__); | |
100 | ||
101 | ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber; | |
102 | numendpoints = serial->interface->cur_altsetting->desc.bNumEndpoints; | |
103 | ||
104 | /* Dummy interface present on some SKUs should be ignored */ | |
105 | if (ifnum == 0x99) | |
106 | num_ports = 0; | |
107 | else if (numendpoints <= 3) | |
108 | num_ports = 1; | |
109 | else | |
110 | num_ports = (numendpoints-1)/2; | |
111 | return num_ports; | |
112 | } | |
113 | ||
114 | static int is_blacklisted(const u8 ifnum, | |
115 | const struct sierra_iface_info *blacklist) | |
116 | { | |
117 | const u8 *info; | |
118 | int i; | |
119 | ||
120 | if (blacklist) { | |
121 | info = blacklist->ifaceinfo; | |
122 | ||
123 | for (i = 0; i < blacklist->infolen; i++) { | |
124 | if (info[i] == ifnum) | |
125 | return 1; | |
126 | } | |
127 | } | |
128 | return 0; | |
129 | } | |
130 | ||
131 | static int is_himemory(const u8 ifnum, | |
132 | const struct sierra_iface_info *himemorylist) | |
133 | { | |
134 | const u8 *info; | |
135 | int i; | |
136 | ||
137 | if (himemorylist) { | |
138 | info = himemorylist->ifaceinfo; | |
139 | ||
140 | for (i=0; i < himemorylist->infolen; i++) { | |
141 | if (info[i] == ifnum) | |
142 | return 1; | |
143 | } | |
144 | } | |
145 | return 0; | |
146 | } | |
147 | ||
148 | static int sierra_calc_interface(struct usb_serial *serial) | |
149 | { | |
150 | int interface; | |
151 | struct usb_interface *p_interface; | |
152 | struct usb_host_interface *p_host_interface; | |
153 | dev_dbg(&serial->dev->dev, "%s\n", __func__); | |
154 | ||
155 | /* Get the interface structure pointer from the serial struct */ | |
156 | p_interface = serial->interface; | |
157 | ||
158 | /* Get a pointer to the host interface structure */ | |
159 | p_host_interface = p_interface->cur_altsetting; | |
160 | ||
161 | /* read the interface descriptor for this active altsetting | |
162 | * to find out the interface number we are on | |
163 | */ | |
164 | interface = p_host_interface->desc.bInterfaceNumber; | |
165 | ||
166 | return interface; | |
167 | } | |
168 | ||
169 | static int sierra_probe(struct usb_serial *serial, | |
170 | const struct usb_device_id *id) | |
171 | { | |
172 | int result = 0; | |
173 | struct usb_device *udev; | |
174 | struct sierra_intf_private *data; | |
175 | u8 ifnum; | |
176 | ||
177 | udev = serial->dev; | |
178 | dev_dbg(&udev->dev, "%s\n", __func__); | |
179 | ||
180 | ifnum = sierra_calc_interface(serial); | |
181 | /* | |
182 | * If this interface supports more than 1 alternate | |
183 | * select the 2nd one | |
184 | */ | |
185 | if (serial->interface->num_altsetting == 2) { | |
186 | dev_dbg(&udev->dev, "Selecting alt setting for interface %d\n", | |
187 | ifnum); | |
188 | /* We know the alternate setting is 1 for the MC8785 */ | |
189 | usb_set_interface(udev, ifnum, 1); | |
190 | } | |
191 | ||
192 | /* ifnum could have changed - by calling usb_set_interface */ | |
193 | ifnum = sierra_calc_interface(serial); | |
194 | ||
195 | if (is_blacklisted(ifnum, | |
196 | (struct sierra_iface_info *)id->driver_info)) { | |
197 | dev_dbg(&serial->dev->dev, | |
198 | "Ignoring blacklisted interface #%d\n", ifnum); | |
199 | return -ENODEV; | |
200 | } | |
201 | ||
202 | data = serial->private = kzalloc(sizeof(struct sierra_intf_private), GFP_KERNEL); | |
203 | if (!data) | |
204 | return -ENOMEM; | |
205 | spin_lock_init(&data->susp_lock); | |
206 | ||
207 | return result; | |
208 | } | |
209 | ||
210 | /* interfaces with higher memory requirements */ | |
211 | static const u8 hi_memory_typeA_ifaces[] = { 0, 2 }; | |
212 | static const struct sierra_iface_info typeA_interface_list = { | |
213 | .infolen = ARRAY_SIZE(hi_memory_typeA_ifaces), | |
214 | .ifaceinfo = hi_memory_typeA_ifaces, | |
215 | }; | |
216 | ||
217 | static const u8 hi_memory_typeB_ifaces[] = { 3, 4, 5, 6 }; | |
218 | static const struct sierra_iface_info typeB_interface_list = { | |
219 | .infolen = ARRAY_SIZE(hi_memory_typeB_ifaces), | |
220 | .ifaceinfo = hi_memory_typeB_ifaces, | |
221 | }; | |
222 | ||
223 | /* 'blacklist' of interfaces not served by this driver */ | |
224 | static const u8 direct_ip_non_serial_ifaces[] = { 7, 8, 9, 10, 11 }; | |
225 | static const struct sierra_iface_info direct_ip_interface_blacklist = { | |
226 | .infolen = ARRAY_SIZE(direct_ip_non_serial_ifaces), | |
227 | .ifaceinfo = direct_ip_non_serial_ifaces, | |
228 | }; | |
229 | ||
230 | static const struct usb_device_id id_table[] = { | |
231 | { USB_DEVICE(0x0F3D, 0x0112) }, /* Airprime/Sierra PC 5220 */ | |
232 | { USB_DEVICE(0x03F0, 0x1B1D) }, /* HP ev2200 a.k.a MC5720 */ | |
233 | { USB_DEVICE(0x03F0, 0x211D) }, /* HP ev2210 a.k.a MC5725 */ | |
234 | { USB_DEVICE(0x03F0, 0x1E1D) }, /* HP hs2300 a.k.a MC8775 */ | |
235 | ||
236 | { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ | |
237 | { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ | |
238 | { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ | |
239 | { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ | |
240 | { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */ | |
241 | { USB_DEVICE(0x1199, 0x0022) }, /* Sierra Wireless EM5725 */ | |
242 | { USB_DEVICE(0x1199, 0x0024) }, /* Sierra Wireless MC5727 */ | |
243 | { USB_DEVICE(0x1199, 0x0224) }, /* Sierra Wireless MC5727 */ | |
244 | { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ | |
245 | { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ | |
246 | { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */ | |
247 | { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */ | |
248 | { USB_DEVICE(0x1199, 0x0301) }, /* Sierra Wireless USB Dongle 250U */ | |
249 | /* Sierra Wireless C597 */ | |
250 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0023, 0xFF, 0xFF, 0xFF) }, | |
251 | /* Sierra Wireless T598 */ | |
252 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0025, 0xFF, 0xFF, 0xFF) }, | |
253 | { USB_DEVICE(0x1199, 0x0026) }, /* Sierra Wireless T11 */ | |
254 | { USB_DEVICE(0x1199, 0x0027) }, /* Sierra Wireless AC402 */ | |
255 | { USB_DEVICE(0x1199, 0x0028) }, /* Sierra Wireless MC5728 */ | |
256 | { USB_DEVICE(0x1199, 0x0029) }, /* Sierra Wireless Device */ | |
257 | ||
258 | { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ | |
259 | { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ | |
260 | { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ | |
261 | { USB_DEVICE(0x1199, 0x6805) }, /* Sierra Wireless MC8765 */ | |
262 | { USB_DEVICE(0x1199, 0x6808) }, /* Sierra Wireless MC8755 */ | |
263 | { USB_DEVICE(0x1199, 0x6809) }, /* Sierra Wireless MC8765 */ | |
264 | { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ | |
265 | { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 */ | |
266 | { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */ | |
267 | { USB_DEVICE(0x1199, 0x6816) }, /* Sierra Wireless MC8775 */ | |
268 | { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ | |
269 | { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */ | |
270 | { USB_DEVICE(0x1199, 0x6822) }, /* Sierra Wireless AirCard 875E */ | |
271 | { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780 */ | |
272 | { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781 */ | |
273 | { USB_DEVICE(0x1199, 0x6834) }, /* Sierra Wireless MC8780 */ | |
274 | { USB_DEVICE(0x1199, 0x6835) }, /* Sierra Wireless MC8781 */ | |
275 | { USB_DEVICE(0x1199, 0x6838) }, /* Sierra Wireless MC8780 */ | |
276 | { USB_DEVICE(0x1199, 0x6839) }, /* Sierra Wireless MC8781 */ | |
277 | { USB_DEVICE(0x1199, 0x683A) }, /* Sierra Wireless MC8785 */ | |
278 | { USB_DEVICE(0x1199, 0x683B) }, /* Sierra Wireless MC8785 Composite */ | |
279 | /* Sierra Wireless MC8790, MC8791, MC8792 Composite */ | |
280 | { USB_DEVICE(0x1199, 0x683C) }, | |
281 | { USB_DEVICE(0x1199, 0x683D) }, /* Sierra Wireless MC8791 Composite */ | |
282 | /* Sierra Wireless MC8790, MC8791, MC8792 */ | |
283 | { USB_DEVICE(0x1199, 0x683E) }, | |
284 | { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ | |
285 | { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ | |
286 | { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */ | |
287 | { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */ | |
288 | { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */ | |
289 | { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ | |
290 | { USB_DEVICE(0x1199, 0x6859) }, /* Sierra Wireless AirCard 885 E */ | |
291 | { USB_DEVICE(0x1199, 0x685A) }, /* Sierra Wireless AirCard 885 E */ | |
292 | /* Sierra Wireless C885 */ | |
293 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6880, 0xFF, 0xFF, 0xFF)}, | |
294 | /* Sierra Wireless C888, Air Card 501, USB 303, USB 304 */ | |
295 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6890, 0xFF, 0xFF, 0xFF)}, | |
296 | /* Sierra Wireless C22/C33 */ | |
297 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6891, 0xFF, 0xFF, 0xFF)}, | |
298 | /* Sierra Wireless HSPA Non-Composite Device */ | |
299 | { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6892, 0xFF, 0xFF, 0xFF)}, | |
300 | { USB_DEVICE(0x1199, 0x6893) }, /* Sierra Wireless Device */ | |
301 | { USB_DEVICE(0x1199, 0x68A3), /* Sierra Wireless Direct IP modems */ | |
302 | .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist | |
303 | }, | |
304 | { USB_DEVICE(0x413C, 0x08133) }, /* Dell Computer Corp. Wireless 5720 VZW Mobile Broadband (EVDO Rev-A) Minicard GPS Port */ | |
305 | ||
306 | { } | |
307 | }; | |
308 | MODULE_DEVICE_TABLE(usb, id_table); | |
309 | ||
310 | ||
311 | struct sierra_port_private { | |
312 | spinlock_t lock; /* lock the structure */ | |
313 | int outstanding_urbs; /* number of out urbs in flight */ | |
314 | struct usb_anchor active; | |
315 | struct usb_anchor delayed; | |
316 | ||
317 | int num_out_urbs; | |
318 | int num_in_urbs; | |
319 | /* Input endpoints and buffers for this port */ | |
320 | struct urb *in_urbs[N_IN_URB_HM]; | |
321 | ||
322 | /* Settings for the port */ | |
323 | int rts_state; /* Handshaking pins (outputs) */ | |
324 | int dtr_state; | |
325 | int cts_state; /* Handshaking pins (inputs) */ | |
326 | int dsr_state; | |
327 | int dcd_state; | |
328 | int ri_state; | |
329 | unsigned int opened:1; | |
330 | }; | |
331 | ||
332 | static int sierra_send_setup(struct usb_serial_port *port) | |
333 | { | |
334 | struct usb_serial *serial = port->serial; | |
335 | struct sierra_port_private *portdata; | |
336 | __u16 interface = 0; | |
337 | int val = 0; | |
338 | int do_send = 0; | |
339 | int retval; | |
340 | ||
341 | dev_dbg(&port->dev, "%s\n", __func__); | |
342 | ||
343 | portdata = usb_get_serial_port_data(port); | |
344 | ||
345 | if (portdata->dtr_state) | |
346 | val |= 0x01; | |
347 | if (portdata->rts_state) | |
348 | val |= 0x02; | |
349 | ||
350 | /* If composite device then properly report interface */ | |
351 | if (serial->num_ports == 1) { | |
352 | interface = sierra_calc_interface(serial); | |
353 | /* Control message is sent only to interfaces with | |
354 | * interrupt_in endpoints | |
355 | */ | |
356 | if (port->interrupt_in_urb) { | |
357 | /* send control message */ | |
358 | do_send = 1; | |
359 | } | |
360 | } | |
361 | ||
362 | /* Otherwise the need to do non-composite mapping */ | |
363 | else { | |
364 | if (port->bulk_out_endpointAddress == 2) | |
365 | interface = 0; | |
366 | else if (port->bulk_out_endpointAddress == 4) | |
367 | interface = 1; | |
368 | else if (port->bulk_out_endpointAddress == 5) | |
369 | interface = 2; | |
370 | ||
371 | do_send = 1; | |
372 | } | |
373 | if (!do_send) | |
374 | return 0; | |
375 | ||
376 | usb_autopm_get_interface(serial->interface); | |
377 | retval = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), | |
378 | 0x22, 0x21, val, interface, NULL, 0, USB_CTRL_SET_TIMEOUT); | |
379 | usb_autopm_put_interface(serial->interface); | |
380 | ||
381 | return retval; | |
382 | } | |
383 | ||
384 | static void sierra_set_termios(struct tty_struct *tty, | |
385 | struct usb_serial_port *port, struct ktermios *old_termios) | |
386 | { | |
387 | dev_dbg(&port->dev, "%s\n", __func__); | |
388 | tty_termios_copy_hw(tty->termios, old_termios); | |
389 | sierra_send_setup(port); | |
390 | } | |
391 | ||
392 | static int sierra_tiocmget(struct tty_struct *tty) | |
393 | { | |
394 | struct usb_serial_port *port = tty->driver_data; | |
395 | unsigned int value; | |
396 | struct sierra_port_private *portdata; | |
397 | ||
398 | dev_dbg(&port->dev, "%s\n", __func__); | |
399 | portdata = usb_get_serial_port_data(port); | |
400 | ||
401 | value = ((portdata->rts_state) ? TIOCM_RTS : 0) | | |
402 | ((portdata->dtr_state) ? TIOCM_DTR : 0) | | |
403 | ((portdata->cts_state) ? TIOCM_CTS : 0) | | |
404 | ((portdata->dsr_state) ? TIOCM_DSR : 0) | | |
405 | ((portdata->dcd_state) ? TIOCM_CAR : 0) | | |
406 | ((portdata->ri_state) ? TIOCM_RNG : 0); | |
407 | ||
408 | return value; | |
409 | } | |
410 | ||
411 | static int sierra_tiocmset(struct tty_struct *tty, | |
412 | unsigned int set, unsigned int clear) | |
413 | { | |
414 | struct usb_serial_port *port = tty->driver_data; | |
415 | struct sierra_port_private *portdata; | |
416 | ||
417 | portdata = usb_get_serial_port_data(port); | |
418 | ||
419 | if (set & TIOCM_RTS) | |
420 | portdata->rts_state = 1; | |
421 | if (set & TIOCM_DTR) | |
422 | portdata->dtr_state = 1; | |
423 | ||
424 | if (clear & TIOCM_RTS) | |
425 | portdata->rts_state = 0; | |
426 | if (clear & TIOCM_DTR) | |
427 | portdata->dtr_state = 0; | |
428 | return sierra_send_setup(port); | |
429 | } | |
430 | ||
431 | static void sierra_release_urb(struct urb *urb) | |
432 | { | |
433 | struct usb_serial_port *port; | |
434 | if (urb) { | |
435 | port = urb->context; | |
436 | dev_dbg(&port->dev, "%s: %p\n", __func__, urb); | |
437 | kfree(urb->transfer_buffer); | |
438 | usb_free_urb(urb); | |
439 | } | |
440 | } | |
441 | ||
442 | static void sierra_outdat_callback(struct urb *urb) | |
443 | { | |
444 | struct usb_serial_port *port = urb->context; | |
445 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
446 | struct sierra_intf_private *intfdata; | |
447 | int status = urb->status; | |
448 | ||
449 | dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number); | |
450 | intfdata = port->serial->private; | |
451 | ||
452 | /* free up the transfer buffer, as usb_free_urb() does not do this */ | |
453 | kfree(urb->transfer_buffer); | |
454 | usb_autopm_put_interface_async(port->serial->interface); | |
455 | if (status) | |
456 | dev_dbg(&port->dev, "%s - nonzero write bulk status " | |
457 | "received: %d\n", __func__, status); | |
458 | ||
459 | spin_lock(&portdata->lock); | |
460 | --portdata->outstanding_urbs; | |
461 | spin_unlock(&portdata->lock); | |
462 | spin_lock(&intfdata->susp_lock); | |
463 | --intfdata->in_flight; | |
464 | spin_unlock(&intfdata->susp_lock); | |
465 | ||
466 | usb_serial_port_softint(port); | |
467 | } | |
468 | ||
469 | /* Write */ | |
470 | static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port, | |
471 | const unsigned char *buf, int count) | |
472 | { | |
473 | struct sierra_port_private *portdata; | |
474 | struct sierra_intf_private *intfdata; | |
475 | struct usb_serial *serial = port->serial; | |
476 | unsigned long flags; | |
477 | unsigned char *buffer; | |
478 | struct urb *urb; | |
479 | size_t writesize = min((size_t)count, (size_t)MAX_TRANSFER); | |
480 | int retval = 0; | |
481 | ||
482 | /* verify that we actually have some data to write */ | |
483 | if (count == 0) | |
484 | return 0; | |
485 | ||
486 | portdata = usb_get_serial_port_data(port); | |
487 | intfdata = serial->private; | |
488 | ||
489 | dev_dbg(&port->dev, "%s: write (%zd bytes)\n", __func__, writesize); | |
490 | spin_lock_irqsave(&portdata->lock, flags); | |
491 | dev_dbg(&port->dev, "%s - outstanding_urbs: %d\n", __func__, | |
492 | portdata->outstanding_urbs); | |
493 | if (portdata->outstanding_urbs > portdata->num_out_urbs) { | |
494 | spin_unlock_irqrestore(&portdata->lock, flags); | |
495 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); | |
496 | return 0; | |
497 | } | |
498 | portdata->outstanding_urbs++; | |
499 | dev_dbg(&port->dev, "%s - 1, outstanding_urbs: %d\n", __func__, | |
500 | portdata->outstanding_urbs); | |
501 | spin_unlock_irqrestore(&portdata->lock, flags); | |
502 | ||
503 | retval = usb_autopm_get_interface_async(serial->interface); | |
504 | if (retval < 0) { | |
505 | spin_lock_irqsave(&portdata->lock, flags); | |
506 | portdata->outstanding_urbs--; | |
507 | spin_unlock_irqrestore(&portdata->lock, flags); | |
508 | goto error_simple; | |
509 | } | |
510 | ||
511 | buffer = kmalloc(writesize, GFP_ATOMIC); | |
512 | if (!buffer) { | |
513 | dev_err(&port->dev, "out of memory\n"); | |
514 | retval = -ENOMEM; | |
515 | goto error_no_buffer; | |
516 | } | |
517 | ||
518 | urb = usb_alloc_urb(0, GFP_ATOMIC); | |
519 | if (!urb) { | |
520 | dev_err(&port->dev, "no more free urbs\n"); | |
521 | retval = -ENOMEM; | |
522 | goto error_no_urb; | |
523 | } | |
524 | ||
525 | memcpy(buffer, buf, writesize); | |
526 | ||
527 | usb_serial_debug_data(debug, &port->dev, __func__, writesize, buffer); | |
528 | ||
529 | usb_fill_bulk_urb(urb, serial->dev, | |
530 | usb_sndbulkpipe(serial->dev, | |
531 | port->bulk_out_endpointAddress), | |
532 | buffer, writesize, sierra_outdat_callback, port); | |
533 | ||
534 | /* Handle the need to send a zero length packet */ | |
535 | urb->transfer_flags |= URB_ZERO_PACKET; | |
536 | ||
537 | spin_lock_irqsave(&intfdata->susp_lock, flags); | |
538 | ||
539 | if (intfdata->suspended) { | |
540 | usb_anchor_urb(urb, &portdata->delayed); | |
541 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
542 | goto skip_power; | |
543 | } else { | |
544 | usb_anchor_urb(urb, &portdata->active); | |
545 | } | |
546 | /* send it down the pipe */ | |
547 | retval = usb_submit_urb(urb, GFP_ATOMIC); | |
548 | if (retval) { | |
549 | usb_unanchor_urb(urb); | |
550 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
551 | dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " | |
552 | "with status = %d\n", __func__, retval); | |
553 | goto error; | |
554 | } else { | |
555 | intfdata->in_flight++; | |
556 | spin_unlock_irqrestore(&intfdata->susp_lock, flags); | |
557 | } | |
558 | ||
559 | skip_power: | |
560 | /* we are done with this urb, so let the host driver | |
561 | * really free it when it is finished with it */ | |
562 | usb_free_urb(urb); | |
563 | ||
564 | return writesize; | |
565 | error: | |
566 | usb_free_urb(urb); | |
567 | error_no_urb: | |
568 | kfree(buffer); | |
569 | error_no_buffer: | |
570 | spin_lock_irqsave(&portdata->lock, flags); | |
571 | --portdata->outstanding_urbs; | |
572 | dev_dbg(&port->dev, "%s - 2. outstanding_urbs: %d\n", __func__, | |
573 | portdata->outstanding_urbs); | |
574 | spin_unlock_irqrestore(&portdata->lock, flags); | |
575 | usb_autopm_put_interface_async(serial->interface); | |
576 | error_simple: | |
577 | return retval; | |
578 | } | |
579 | ||
580 | static void sierra_indat_callback(struct urb *urb) | |
581 | { | |
582 | int err; | |
583 | int endpoint; | |
584 | struct usb_serial_port *port; | |
585 | struct tty_struct *tty; | |
586 | unsigned char *data = urb->transfer_buffer; | |
587 | int status = urb->status; | |
588 | ||
589 | endpoint = usb_pipeendpoint(urb->pipe); | |
590 | port = urb->context; | |
591 | ||
592 | dev_dbg(&port->dev, "%s: %p\n", __func__, urb); | |
593 | ||
594 | if (status) { | |
595 | dev_dbg(&port->dev, "%s: nonzero status: %d on" | |
596 | " endpoint %02x\n", __func__, status, endpoint); | |
597 | } else { | |
598 | if (urb->actual_length) { | |
599 | tty = tty_port_tty_get(&port->port); | |
600 | if (tty) { | |
601 | tty_insert_flip_string(tty, data, | |
602 | urb->actual_length); | |
603 | tty_flip_buffer_push(tty); | |
604 | ||
605 | tty_kref_put(tty); | |
606 | usb_serial_debug_data(debug, &port->dev, | |
607 | __func__, urb->actual_length, data); | |
608 | } | |
609 | } else { | |
610 | dev_dbg(&port->dev, "%s: empty read urb" | |
611 | " received\n", __func__); | |
612 | } | |
613 | } | |
614 | ||
615 | /* Resubmit urb so we continue receiving */ | |
616 | if (status != -ESHUTDOWN && status != -EPERM) { | |
617 | usb_mark_last_busy(port->serial->dev); | |
618 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
619 | if (err && err != -EPERM) | |
620 | dev_err(&port->dev, "resubmit read urb failed." | |
621 | "(%d)\n", err); | |
622 | } | |
623 | } | |
624 | ||
625 | static void sierra_instat_callback(struct urb *urb) | |
626 | { | |
627 | int err; | |
628 | int status = urb->status; | |
629 | struct usb_serial_port *port = urb->context; | |
630 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
631 | struct usb_serial *serial = port->serial; | |
632 | ||
633 | dev_dbg(&port->dev, "%s: urb %p port %p has data %p\n", __func__, | |
634 | urb, port, portdata); | |
635 | ||
636 | if (status == 0) { | |
637 | struct usb_ctrlrequest *req_pkt = | |
638 | (struct usb_ctrlrequest *)urb->transfer_buffer; | |
639 | ||
640 | if (!req_pkt) { | |
641 | dev_dbg(&port->dev, "%s: NULL req_pkt\n", | |
642 | __func__); | |
643 | return; | |
644 | } | |
645 | if ((req_pkt->bRequestType == 0xA1) && | |
646 | (req_pkt->bRequest == 0x20)) { | |
647 | int old_dcd_state; | |
648 | unsigned char signals = *((unsigned char *) | |
649 | urb->transfer_buffer + | |
650 | sizeof(struct usb_ctrlrequest)); | |
651 | struct tty_struct *tty; | |
652 | ||
653 | dev_dbg(&port->dev, "%s: signal x%x\n", __func__, | |
654 | signals); | |
655 | ||
656 | old_dcd_state = portdata->dcd_state; | |
657 | portdata->cts_state = 1; | |
658 | portdata->dcd_state = ((signals & 0x01) ? 1 : 0); | |
659 | portdata->dsr_state = ((signals & 0x02) ? 1 : 0); | |
660 | portdata->ri_state = ((signals & 0x08) ? 1 : 0); | |
661 | ||
662 | tty = tty_port_tty_get(&port->port); | |
663 | if (tty && !C_CLOCAL(tty) && | |
664 | old_dcd_state && !portdata->dcd_state) | |
665 | tty_hangup(tty); | |
666 | tty_kref_put(tty); | |
667 | } else { | |
668 | dev_dbg(&port->dev, "%s: type %x req %x\n", | |
669 | __func__, req_pkt->bRequestType, | |
670 | req_pkt->bRequest); | |
671 | } | |
672 | } else | |
673 | dev_dbg(&port->dev, "%s: error %d\n", __func__, status); | |
674 | ||
675 | /* Resubmit urb so we continue receiving IRQ data */ | |
676 | if (status != -ESHUTDOWN && status != -ENOENT) { | |
677 | usb_mark_last_busy(serial->dev); | |
678 | urb->dev = serial->dev; | |
679 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
680 | if (err && err != -EPERM) | |
681 | dev_err(&port->dev, "%s: resubmit intr urb " | |
682 | "failed. (%d)\n", __func__, err); | |
683 | } | |
684 | } | |
685 | ||
686 | static int sierra_write_room(struct tty_struct *tty) | |
687 | { | |
688 | struct usb_serial_port *port = tty->driver_data; | |
689 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
690 | unsigned long flags; | |
691 | ||
692 | dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number); | |
693 | ||
694 | /* try to give a good number back based on if we have any free urbs at | |
695 | * this point in time */ | |
696 | spin_lock_irqsave(&portdata->lock, flags); | |
697 | if (portdata->outstanding_urbs > (portdata->num_out_urbs * 2) / 3) { | |
698 | spin_unlock_irqrestore(&portdata->lock, flags); | |
699 | dev_dbg(&port->dev, "%s - write limit hit\n", __func__); | |
700 | return 0; | |
701 | } | |
702 | spin_unlock_irqrestore(&portdata->lock, flags); | |
703 | ||
704 | return 2048; | |
705 | } | |
706 | ||
707 | static void sierra_stop_rx_urbs(struct usb_serial_port *port) | |
708 | { | |
709 | int i; | |
710 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
711 | ||
712 | for (i = 0; i < portdata->num_in_urbs; i++) | |
713 | usb_kill_urb(portdata->in_urbs[i]); | |
714 | ||
715 | usb_kill_urb(port->interrupt_in_urb); | |
716 | } | |
717 | ||
718 | static int sierra_submit_rx_urbs(struct usb_serial_port *port, gfp_t mem_flags) | |
719 | { | |
720 | int ok_cnt; | |
721 | int err = -EINVAL; | |
722 | int i; | |
723 | struct urb *urb; | |
724 | struct sierra_port_private *portdata = usb_get_serial_port_data(port); | |
725 | ||
726 | ok_cnt = 0; | |
727 | for (i = 0; i < portdata->num_in_urbs; i++) { | |
728 | urb = portdata->in_urbs[i]; | |
729 | if (!urb) | |
730 | continue; | |
731 | err = usb_submit_urb(urb, mem_flags); | |
732 | if (err) { | |
733 | dev_err(&port->dev, "%s: submit urb failed: %d\n", | |
734 | __func__, err); | |
735 | } else { | |
736 | ok_cnt++; | |
737 | } | |
738 | } | |
739 | ||
740 | if (ok_cnt && port->interrupt_in_urb) { | |
741 | err = usb_submit_urb(port->interrupt_in_urb, mem_flags); | |
742 | if (err) { | |
743 | dev_err(&port->dev, "%s: submit intr urb failed: %d\n", | |
744 | __func__, err); | |
745 | } | |
746 | } | |
747 | ||
748 | if (ok_cnt > 0) /* at least one rx urb submitted */ | |
749 | return 0; | |
750 | else | |
751 | return err; | |
752 | } | |
753 | ||
754 | static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint, | |
755 | int dir, void *ctx, int len, | |
756 | gfp_t mem_flags, | |
757 | usb_complete_t callback) | |
758 | { | |
759 | struct urb *urb; | |
760 | u8 *buf; | |
761 | ||
762 | if (endpoint == -1) | |
763 | return NULL; | |
764 | ||
765 | urb = usb_alloc_urb(0, mem_flags); | |
766 | if (urb == NULL) { | |
767 | dev_dbg(&serial->dev->dev, "%s: alloc for endpoint %d failed\n", | |
768 | __func__, endpoint); | |
769 | return NULL; | |
770 | } | |
771 | ||
772 | buf = kmalloc(len, mem_flags); | |
773 | if (buf) { | |
774 | /* Fill URB using supplied data */ | |
775 | usb_fill_bulk_urb(urb, serial->dev, | |
776 | usb_sndbulkpipe(serial->dev, endpoint) | dir, | |
777 | buf, len, callback, ctx); | |
778 | ||
779 | /* debug */ | |
780 | dev_dbg(&serial->dev->dev, "%s %c u : %p d:%p\n", __func__, | |
781 | dir == USB_DIR_IN ? 'i' : 'o', urb, buf); | |
782 | } else { | |
783 | dev_dbg(&serial->dev->dev, "%s %c u:%p d:%p\n", __func__, | |
784 | dir == USB_DIR_IN ? 'i' : 'o', urb, buf); | |
785 | ||
786 | sierra_release_urb(urb); | |
787 | urb = NULL; | |
788 | } | |
789 | ||
790 | return urb; | |
791 | } | |
792 | ||
793 | static void sierra_close(struct usb_serial_port *port) | |
794 | { | |
795 | int i; | |
796 | struct usb_serial *serial = port->serial; | |
797 | struct sierra_port_private *portdata; | |
798 | struct sierra_intf_private *intfdata = port->serial->private; | |
799 | ||
800 | ||
801 | dev_dbg(&port->dev, "%s\n", __func__); | |
802 | portdata = usb_get_serial_port_data(port); | |
803 | ||
804 | portdata->rts_state = 0; | |
805 | portdata->dtr_state = 0; | |
806 | ||
807 | if (serial->dev) { | |
808 | mutex_lock(&serial->disc_mutex); | |
809 | if (!serial->disconnected) { | |
810 | serial->interface->needs_remote_wakeup = 0; | |
811 | usb_autopm_get_interface(serial->interface); | |
812 | sierra_send_setup(port); | |
813 | } | |
814 | mutex_unlock(&serial->disc_mutex); | |
815 | spin_lock_irq(&intfdata->susp_lock); | |
816 | portdata->opened = 0; | |
817 | spin_unlock_irq(&intfdata->susp_lock); | |
818 | ||
819 | ||
820 | /* Stop reading urbs */ | |
821 | sierra_stop_rx_urbs(port); | |
822 | /* .. and release them */ | |
823 | for (i = 0; i < portdata->num_in_urbs; i++) { | |
824 | sierra_release_urb(portdata->in_urbs[i]); | |
825 | portdata->in_urbs[i] = NULL; | |
826 | } | |
827 | } | |
828 | } | |
829 | ||
830 | static int sierra_open(struct tty_struct *tty, struct usb_serial_port *port) | |
831 | { | |
832 | struct sierra_port_private *portdata; | |
833 | struct usb_serial *serial = port->serial; | |
834 | struct sierra_intf_private *intfdata = serial->private; | |
835 | int i; | |
836 | int err; | |
837 | int endpoint; | |
838 | struct urb *urb; | |
839 | ||
840 | portdata = usb_get_serial_port_data(port); | |
841 | ||
842 | dev_dbg(&port->dev, "%s\n", __func__); | |
843 | ||
844 | /* Set some sane defaults */ | |
845 | portdata->rts_state = 1; | |
846 | portdata->dtr_state = 1; | |
847 | ||
848 | ||
849 | endpoint = port->bulk_in_endpointAddress; | |
850 | for (i = 0; i < portdata->num_in_urbs; i++) { | |
851 | urb = sierra_setup_urb(serial, endpoint, USB_DIR_IN, port, | |
852 | IN_BUFLEN, GFP_KERNEL, | |
853 | sierra_indat_callback); | |
854 | portdata->in_urbs[i] = urb; | |
855 | } | |
856 | /* clear halt condition */ | |
857 | usb_clear_halt(serial->dev, | |
858 | usb_sndbulkpipe(serial->dev, endpoint) | USB_DIR_IN); | |
859 | ||
860 | err = sierra_submit_rx_urbs(port, GFP_KERNEL); | |
861 | if (err) { | |
862 | /* get rid of everything as in close */ | |
863 | sierra_close(port); | |
864 | /* restore balance for autopm */ | |
865 | usb_autopm_put_interface(serial->interface); | |
866 | return err; | |
867 | } | |
868 | sierra_send_setup(port); | |
869 | ||
870 | serial->interface->needs_remote_wakeup = 1; | |
871 | spin_lock_irq(&intfdata->susp_lock); | |
872 | portdata->opened = 1; | |
873 | spin_unlock_irq(&intfdata->susp_lock); | |
874 | usb_autopm_put_interface(serial->interface); | |
875 | ||
876 | return 0; | |
877 | } | |
878 | ||
879 | ||
880 | static void sierra_dtr_rts(struct usb_serial_port *port, int on) | |
881 | { | |
882 | struct usb_serial *serial = port->serial; | |
883 | struct sierra_port_private *portdata; | |
884 | ||
885 | portdata = usb_get_serial_port_data(port); | |
886 | portdata->rts_state = on; | |
887 | portdata->dtr_state = on; | |
888 | ||
889 | if (serial->dev) { | |
890 | mutex_lock(&serial->disc_mutex); | |
891 | if (!serial->disconnected) | |
892 | sierra_send_setup(port); | |
893 | mutex_unlock(&serial->disc_mutex); | |
894 | } | |
895 | } | |
896 | ||
897 | static int sierra_startup(struct usb_serial *serial) | |
898 | { | |
899 | struct usb_serial_port *port; | |
900 | struct sierra_port_private *portdata; | |
901 | struct sierra_iface_info *himemoryp = NULL; | |
902 | int i; | |
903 | u8 ifnum; | |
904 | ||
905 | dev_dbg(&serial->dev->dev, "%s\n", __func__); | |
906 | ||
907 | /* Set Device mode to D0 */ | |
908 | sierra_set_power_state(serial->dev, 0x0000); | |
909 | ||
910 | /* Check NMEA and set */ | |
911 | if (nmea) | |
912 | sierra_vsc_set_nmea(serial->dev, 1); | |
913 | ||
914 | /* Now setup per port private data */ | |
915 | for (i = 0; i < serial->num_ports; i++) { | |
916 | port = serial->port[i]; | |
917 | portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); | |
918 | if (!portdata) { | |
919 | dev_dbg(&port->dev, "%s: kmalloc for " | |
920 | "sierra_port_private (%d) failed!\n", | |
921 | __func__, i); | |
922 | return -ENOMEM; | |
923 | } | |
924 | spin_lock_init(&portdata->lock); | |
925 | init_usb_anchor(&portdata->active); | |
926 | init_usb_anchor(&portdata->delayed); | |
927 | ifnum = i; | |
928 | /* Assume low memory requirements */ | |
929 | portdata->num_out_urbs = N_OUT_URB; | |
930 | portdata->num_in_urbs = N_IN_URB; | |
931 | ||
932 | /* Determine actual memory requirements */ | |
933 | if (serial->num_ports == 1) { | |
934 | /* Get interface number for composite device */ | |
935 | ifnum = sierra_calc_interface(serial); | |
936 | himemoryp = | |
937 | (struct sierra_iface_info *)&typeB_interface_list; | |
938 | if (is_himemory(ifnum, himemoryp)) { | |
939 | portdata->num_out_urbs = N_OUT_URB_HM; | |
940 | portdata->num_in_urbs = N_IN_URB_HM; | |
941 | } | |
942 | } | |
943 | else { | |
944 | himemoryp = | |
945 | (struct sierra_iface_info *)&typeA_interface_list; | |
946 | if (is_himemory(i, himemoryp)) { | |
947 | portdata->num_out_urbs = N_OUT_URB_HM; | |
948 | portdata->num_in_urbs = N_IN_URB_HM; | |
949 | } | |
950 | } | |
951 | dev_dbg(&serial->dev->dev, | |
952 | "Memory usage (urbs) interface #%d, in=%d, out=%d\n", | |
953 | ifnum,portdata->num_in_urbs, portdata->num_out_urbs ); | |
954 | /* Set the port private data pointer */ | |
955 | usb_set_serial_port_data(port, portdata); | |
956 | } | |
957 | ||
958 | return 0; | |
959 | } | |
960 | ||
961 | static void sierra_release(struct usb_serial *serial) | |
962 | { | |
963 | int i; | |
964 | struct usb_serial_port *port; | |
965 | struct sierra_port_private *portdata; | |
966 | ||
967 | dev_dbg(&serial->dev->dev, "%s\n", __func__); | |
968 | ||
969 | for (i = 0; i < serial->num_ports; ++i) { | |
970 | port = serial->port[i]; | |
971 | if (!port) | |
972 | continue; | |
973 | portdata = usb_get_serial_port_data(port); | |
974 | if (!portdata) | |
975 | continue; | |
976 | kfree(portdata); | |
977 | } | |
978 | } | |
979 | ||
980 | #ifdef CONFIG_PM | |
981 | static void stop_read_write_urbs(struct usb_serial *serial) | |
982 | { | |
983 | int i; | |
984 | struct usb_serial_port *port; | |
985 | struct sierra_port_private *portdata; | |
986 | ||
987 | /* Stop reading/writing urbs */ | |
988 | for (i = 0; i < serial->num_ports; ++i) { | |
989 | port = serial->port[i]; | |
990 | portdata = usb_get_serial_port_data(port); | |
991 | sierra_stop_rx_urbs(port); | |
992 | usb_kill_anchored_urbs(&portdata->active); | |
993 | } | |
994 | } | |
995 | ||
996 | static int sierra_suspend(struct usb_serial *serial, pm_message_t message) | |
997 | { | |
998 | struct sierra_intf_private *intfdata; | |
999 | int b; | |
1000 | ||
1001 | if (message.event & PM_EVENT_AUTO) { | |
1002 | intfdata = serial->private; | |
1003 | spin_lock_irq(&intfdata->susp_lock); | |
1004 | b = intfdata->in_flight; | |
1005 | ||
1006 | if (b) { | |
1007 | spin_unlock_irq(&intfdata->susp_lock); | |
1008 | return -EBUSY; | |
1009 | } else { | |
1010 | intfdata->suspended = 1; | |
1011 | spin_unlock_irq(&intfdata->susp_lock); | |
1012 | } | |
1013 | } | |
1014 | stop_read_write_urbs(serial); | |
1015 | ||
1016 | return 0; | |
1017 | } | |
1018 | ||
1019 | static int sierra_resume(struct usb_serial *serial) | |
1020 | { | |
1021 | struct usb_serial_port *port; | |
1022 | struct sierra_intf_private *intfdata = serial->private; | |
1023 | struct sierra_port_private *portdata; | |
1024 | struct urb *urb; | |
1025 | int ec = 0; | |
1026 | int i, err; | |
1027 | ||
1028 | spin_lock_irq(&intfdata->susp_lock); | |
1029 | for (i = 0; i < serial->num_ports; i++) { | |
1030 | port = serial->port[i]; | |
1031 | portdata = usb_get_serial_port_data(port); | |
1032 | ||
1033 | while ((urb = usb_get_from_anchor(&portdata->delayed))) { | |
1034 | usb_anchor_urb(urb, &portdata->active); | |
1035 | intfdata->in_flight++; | |
1036 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
1037 | if (err < 0) { | |
1038 | intfdata->in_flight--; | |
1039 | usb_unanchor_urb(urb); | |
1040 | usb_scuttle_anchored_urbs(&portdata->delayed); | |
1041 | break; | |
1042 | } | |
1043 | } | |
1044 | ||
1045 | if (portdata->opened) { | |
1046 | err = sierra_submit_rx_urbs(port, GFP_ATOMIC); | |
1047 | if (err) | |
1048 | ec++; | |
1049 | } | |
1050 | } | |
1051 | intfdata->suspended = 0; | |
1052 | spin_unlock_irq(&intfdata->susp_lock); | |
1053 | ||
1054 | return ec ? -EIO : 0; | |
1055 | } | |
1056 | ||
1057 | static int sierra_reset_resume(struct usb_interface *intf) | |
1058 | { | |
1059 | struct usb_serial *serial = usb_get_intfdata(intf); | |
1060 | dev_err(&serial->dev->dev, "%s\n", __func__); | |
1061 | return usb_serial_resume(intf); | |
1062 | } | |
1063 | #else | |
1064 | #define sierra_suspend NULL | |
1065 | #define sierra_resume NULL | |
1066 | #define sierra_reset_resume NULL | |
1067 | #endif | |
1068 | ||
1069 | static struct usb_driver sierra_driver = { | |
1070 | .name = "sierra", | |
1071 | .probe = usb_serial_probe, | |
1072 | .disconnect = usb_serial_disconnect, | |
1073 | .suspend = usb_serial_suspend, | |
1074 | .resume = usb_serial_resume, | |
1075 | .reset_resume = sierra_reset_resume, | |
1076 | .id_table = id_table, | |
1077 | .no_dynamic_id = 1, | |
1078 | .supports_autosuspend = 1, | |
1079 | }; | |
1080 | ||
1081 | static struct usb_serial_driver sierra_device = { | |
1082 | .driver = { | |
1083 | .owner = THIS_MODULE, | |
1084 | .name = "sierra", | |
1085 | }, | |
1086 | .description = "Sierra USB modem", | |
1087 | .id_table = id_table, | |
1088 | .usb_driver = &sierra_driver, | |
1089 | .calc_num_ports = sierra_calc_num_ports, | |
1090 | .probe = sierra_probe, | |
1091 | .open = sierra_open, | |
1092 | .close = sierra_close, | |
1093 | .dtr_rts = sierra_dtr_rts, | |
1094 | .write = sierra_write, | |
1095 | .write_room = sierra_write_room, | |
1096 | .set_termios = sierra_set_termios, | |
1097 | .tiocmget = sierra_tiocmget, | |
1098 | .tiocmset = sierra_tiocmset, | |
1099 | .attach = sierra_startup, | |
1100 | .release = sierra_release, | |
1101 | .suspend = sierra_suspend, | |
1102 | .resume = sierra_resume, | |
1103 | .read_int_callback = sierra_instat_callback, | |
1104 | }; | |
1105 | ||
1106 | /* Functions used by new usb-serial code. */ | |
1107 | static int __init sierra_init(void) | |
1108 | { | |
1109 | int retval; | |
1110 | retval = usb_serial_register(&sierra_device); | |
1111 | if (retval) | |
1112 | goto failed_device_register; | |
1113 | ||
1114 | ||
1115 | retval = usb_register(&sierra_driver); | |
1116 | if (retval) | |
1117 | goto failed_driver_register; | |
1118 | ||
1119 | printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" | |
1120 | DRIVER_DESC "\n"); | |
1121 | ||
1122 | return 0; | |
1123 | ||
1124 | failed_driver_register: | |
1125 | usb_serial_deregister(&sierra_device); | |
1126 | failed_device_register: | |
1127 | return retval; | |
1128 | } | |
1129 | ||
1130 | static void __exit sierra_exit(void) | |
1131 | { | |
1132 | usb_deregister(&sierra_driver); | |
1133 | usb_serial_deregister(&sierra_device); | |
1134 | } | |
1135 | ||
1136 | module_init(sierra_init); | |
1137 | module_exit(sierra_exit); | |
1138 | ||
1139 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
1140 | MODULE_DESCRIPTION(DRIVER_DESC); | |
1141 | MODULE_VERSION(DRIVER_VERSION); | |
1142 | MODULE_LICENSE("GPL"); | |
1143 | ||
1144 | module_param(nmea, bool, S_IRUGO | S_IWUSR); | |
1145 | MODULE_PARM_DESC(nmea, "NMEA streaming"); | |
1146 | ||
1147 | module_param(debug, bool, S_IRUGO | S_IWUSR); | |
1148 | MODULE_PARM_DESC(debug, "Debug messages"); |