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Merge tag 'omap-devel-am33xx-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel...
[deliverable/linux.git] / drivers / usb / serial / sierra.c
CommitLineData
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 18*/
3a2b808e
EP		 19/* Uncomment to log function calls */
20/* #define DEBUG */
21#define DRIVER_VERSION "v.1.7.16"
40d2ff32 22#define DRIVER_AUTHOR "Kevin Lloyd, Elina Pasheva, Matthew Safar, Rory Filer"
033a3fb9 23#define DRIVER_DESC "USB Driver for Sierra Wireless USB modems"
69de51fd
KL		 24
25#include <linux/kernel.h>
033a3fb9
KL		 26#include <linux/jiffies.h>
27#include <linux/errno.h>
69de51fd 28#include <linux/tty.h>
5a0e3ad6 29#include <linux/slab.h>
033a3fb9 30#include <linux/tty_flip.h>
69de51fd
KL		 31#include <linux/module.h>
32#include <linux/usb.h>
a969888c 33#include <linux/usb/serial.h>
69de51fd 34
228426ed
KL		 35#define SWIMS_USB_REQUEST_SetPower 0x00
36#define SWIMS_USB_REQUEST_SetNmea 0x07
112225b1 37
3a2b808e
EP		 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
112225b1
KL		 42#define IN_BUFLEN 4096
43
40d2ff32
EP		 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
90ab5ee9
RR		 49static bool debug;
50static bool nmea;
112225b1 51
4db2299d
EP		 52/* Used in interface blacklisting */
53struct 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
e6929a90
ON		 58struct sierra_intf_private {
59 spinlock_t susp_lock;
60 unsigned int suspended:1;
61 int in_flight;
62};
63
82a24e68 64static int sierra_set_power_state(struct usb_device *udev, __u16 swiState)
112225b1 65{
64318a52 66 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
228426ed 67 SWIMS_USB_REQUEST_SetPower, /* __u8 request */
f3564de4 68 USB_TYPE_VENDOR, /* __u8 request type */
228426ed
KL		 69 swiState, /* __u16 value */
70 0, /* __u16 index */
71 NULL, /* void *data */
72 0, /* __u16 size */
73 USB_CTRL_SET_TIMEOUT); /* int timeout */
112225b1
KL		 74}
75
228426ed 76static int sierra_vsc_set_nmea(struct usb_device *udev, __u16 enable)
112225b1 77{
64318a52 78 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
228426ed 79 SWIMS_USB_REQUEST_SetNmea, /* __u8 request */
f3564de4 80 USB_TYPE_VENDOR, /* __u8 request type */
228426ed
KL		 81 enable, /* __u16 value */
82 0x0000, /* __u16 index */
83 NULL, /* void *data */
84 0, /* __u16 size */
85 USB_CTRL_SET_TIMEOUT); /* int timeout */
228426ed
KL		 86}
87
88static int sierra_calc_num_ports(struct usb_serial *serial)
89{
9636b683
EP		 90 int num_ports = 0;
91 u8 ifnum, numendpoints;
228426ed 92
9636b683
EP		 93 ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
94 numendpoints = serial->interface->cur_altsetting->desc.bNumEndpoints;
228426ed 95
9636b683
EP		 96 /* Dummy interface present on some SKUs should be ignored */
97 if (ifnum == 0x99)
98 num_ports = 0;
99 else if (numendpoints <= 3)
100 num_ports = 1;
101 else
102 num_ports = (numendpoints-1)/2;
103 return num_ports;
228426ed
KL		 104}
105
4db2299d
EP		 106static int is_blacklisted(const u8 ifnum,
107 const struct sierra_iface_info *blacklist)
108{
109 const u8 *info;
110 int i;
111
112 if (blacklist) {
113 info = blacklist->ifaceinfo;
114
115 for (i = 0; i < blacklist->infolen; i++) {
116 if (info[i] == ifnum)
117 return 1;
118 }
119 }
120 return 0;
121}
122
3a2b808e
EP		 123static int is_himemory(const u8 ifnum,
124 const struct sierra_iface_info *himemorylist)
125{
126 const u8 *info;
127 int i;
128
129 if (himemorylist) {
130 info = himemorylist->ifaceinfo;
131
132 for (i=0; i < himemorylist->infolen; i++) {
133 if (info[i] == ifnum)
134 return 1;
135 }
136 }
137 return 0;
138}
139
7106967e
KL		 140static int sierra_calc_interface(struct usb_serial *serial)
141{
4e0fee82
KL		 142 int interface;
143 struct usb_interface *p_interface;
144 struct usb_host_interface *p_host_interface;
7106967e 145
4e0fee82
KL		 146 /* Get the interface structure pointer from the serial struct */
147 p_interface = serial->interface;
7106967e 148
4e0fee82
KL		 149 /* Get a pointer to the host interface structure */
150 p_host_interface = p_interface->cur_altsetting;
7106967e 151
4e0fee82
KL		 152 /* read the interface descriptor for this active altsetting
153 * to find out the interface number we are on
154 */
155 interface = p_host_interface->desc.bInterfaceNumber;
7106967e 156
4e0fee82 157 return interface;
7106967e
KL		 158}
159
228426ed
KL		 160static int sierra_probe(struct usb_serial *serial,
161 const struct usb_device_id *id)
162{
163 int result = 0;
112225b1 164 struct usb_device *udev;
e6929a90 165 struct sierra_intf_private *data;
228426ed 166 u8 ifnum;
112225b1 167
228426ed 168 udev = serial->dev;
e3173b22 169 ifnum = sierra_calc_interface(serial);
64318a52 170
e3173b22
KL		 171 /*
172 * If this interface supports more than 1 alternate
173 * select the 2nd one
174 */
175 if (serial->interface->num_altsetting == 2) {
176 dev_dbg(&udev->dev, "Selecting alt setting for interface %d\n",
177 ifnum);
178 /* We know the alternate setting is 1 for the MC8785 */
179 usb_set_interface(udev, ifnum, 1);
180 }
7106967e 181
4db2299d
EP		 182 /* ifnum could have changed - by calling usb_set_interface */
183 ifnum = sierra_calc_interface(serial);
184
185 if (is_blacklisted(ifnum,
186 (struct sierra_iface_info *)id->driver_info)) {
187 dev_dbg(&serial->dev->dev,
188 "Ignoring blacklisted interface #%d\n", ifnum);
189 return -ENODEV;
190 }
191
e6929a90
ON		 192 data = serial->private = kzalloc(sizeof(struct sierra_intf_private), GFP_KERNEL);
193 if (!data)
194 return -ENOMEM;
195 spin_lock_init(&data->susp_lock);
196
228426ed 197 return result;
112225b1 198}
033a3fb9 199
3a2b808e
EP		 200/* interfaces with higher memory requirements */
201static const u8 hi_memory_typeA_ifaces[] = { 0, 2 };
202static const struct sierra_iface_info typeA_interface_list = {
203 .infolen = ARRAY_SIZE(hi_memory_typeA_ifaces),
204 .ifaceinfo = hi_memory_typeA_ifaces,
205};
206
207static const u8 hi_memory_typeB_ifaces[] = { 3, 4, 5, 6 };
208static const struct sierra_iface_info typeB_interface_list = {
209 .infolen = ARRAY_SIZE(hi_memory_typeB_ifaces),
210 .ifaceinfo = hi_memory_typeB_ifaces,
211};
212
213/* 'blacklist' of interfaces not served by this driver */
749541d1 214static const u8 direct_ip_non_serial_ifaces[] = { 7, 8, 9, 10, 11, 19, 20 };
4db2299d
EP		 215static const struct sierra_iface_info direct_ip_interface_blacklist = {
216 .infolen = ARRAY_SIZE(direct_ip_non_serial_ifaces),
217 .ifaceinfo = direct_ip_non_serial_ifaces,
218};
219
7d40d7e8 220static const struct usb_device_id id_table[] = {
c5f3d87d
EP		 221 { USB_DEVICE(0x0F3D, 0x0112) }, /* Airprime/Sierra PC 5220 */
222 { USB_DEVICE(0x03F0, 0x1B1D) }, /* HP ev2200 a.k.a MC5720 */
cfbaa393 223 { USB_DEVICE(0x03F0, 0x211D) }, /* HP ev2210 a.k.a MC5725 */
c5f3d87d
EP		 224 { USB_DEVICE(0x03F0, 0x1E1D) }, /* HP hs2300 a.k.a MC8775 */
225
e43062dd 226 { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */
69de51fd 227 { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */
e43062dd 228 { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */
69de51fd 229 { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */
b9e13ac3 230 { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */
c5f3d87d
EP		 231 { USB_DEVICE(0x1199, 0x0022) }, /* Sierra Wireless EM5725 */
232 { USB_DEVICE(0x1199, 0x0024) }, /* Sierra Wireless MC5727 */
233 { USB_DEVICE(0x1199, 0x0224) }, /* Sierra Wireless MC5727 */
69de51fd 234 { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */
e43062dd 235 { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */
c5f3d87d 236 { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */
9454c46a 237 { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */
9d72c81d 238 { USB_DEVICE(0x1199, 0x0301) }, /* Sierra Wireless USB Dongle 250U */
c5f3d87d 239 /* Sierra Wireless C597 */
4e0fee82 240 { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0023, 0xFF, 0xFF, 0xFF) },
c5f3d87d 241 /* Sierra Wireless T598 */
e3173b22 242 { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0025, 0xFF, 0xFF, 0xFF) },
c5f3d87d
EP		 243 { USB_DEVICE(0x1199, 0x0026) }, /* Sierra Wireless T11 */
244 { USB_DEVICE(0x1199, 0x0027) }, /* Sierra Wireless AC402 */
245 { USB_DEVICE(0x1199, 0x0028) }, /* Sierra Wireless MC5728 */
246 { USB_DEVICE(0x1199, 0x0029) }, /* Sierra Wireless Device */
9454c46a 247
69de51fd
KL		 248 { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */
249 { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */
c5f3d87d
EP		 250 { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */
251 { USB_DEVICE(0x1199, 0x6805) }, /* Sierra Wireless MC8765 */
252 { USB_DEVICE(0x1199, 0x6808) }, /* Sierra Wireless MC8755 */
253 { USB_DEVICE(0x1199, 0x6809) }, /* Sierra Wireless MC8765 */
9454c46a 254 { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */
c5f3d87d 255 { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 */
7f170a63 256 { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */
c5f3d87d 257 { USB_DEVICE(0x1199, 0x6816) }, /* Sierra Wireless MC8775 */
69de51fd 258 { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */
7106967e 259 { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */
c5f3d87d 260 { USB_DEVICE(0x1199, 0x6822) }, /* Sierra Wireless AirCard 875E */
4e0fee82
KL		 261 { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780 */
262 { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781 */
c5f3d87d
EP		 263 { USB_DEVICE(0x1199, 0x6834) }, /* Sierra Wireless MC8780 */
264 { USB_DEVICE(0x1199, 0x6835) }, /* Sierra Wireless MC8781 */
265 { USB_DEVICE(0x1199, 0x6838) }, /* Sierra Wireless MC8780 */
266 { USB_DEVICE(0x1199, 0x6839) }, /* Sierra Wireless MC8781 */
b77a5c70 267 { USB_DEVICE(0x1199, 0x683A) }, /* Sierra Wireless MC8785 */
e3173b22 268 { USB_DEVICE(0x1199, 0x683B) }, /* Sierra Wireless MC8785 Composite */
4db2299d
EP		 269 /* Sierra Wireless MC8790, MC8791, MC8792 Composite */
270 { USB_DEVICE(0x1199, 0x683C) },
271 { USB_DEVICE(0x1199, 0x683D) }, /* Sierra Wireless MC8791 Composite */
272 /* Sierra Wireless MC8790, MC8791, MC8792 */
273 { USB_DEVICE(0x1199, 0x683E) },
9454c46a
KL		 274 { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */
275 { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */
276 { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */
277 { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */
6835b32c 278 { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */
62aad3ab 279 { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */
e3173b22
KL		 280 { USB_DEVICE(0x1199, 0x6859) }, /* Sierra Wireless AirCard 885 E */
281 { USB_DEVICE(0x1199, 0x685A) }, /* Sierra Wireless AirCard 885 E */
282 /* Sierra Wireless C885 */
283 { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6880, 0xFF, 0xFF, 0xFF)},
c5f3d87d 284 /* Sierra Wireless C888, Air Card 501, USB 303, USB 304 */
e3173b22 285 { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6890, 0xFF, 0xFF, 0xFF)},
c5f3d87d 286 /* Sierra Wireless C22/C33 */
73b2c205 287 { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6891, 0xFF, 0xFF, 0xFF)},
c5f3d87d 288 /* Sierra Wireless HSPA Non-Composite Device */
e3173b22 289 { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6892, 0xFF, 0xFF, 0xFF)},
c5f3d87d 290 { USB_DEVICE(0x1199, 0x6893) }, /* Sierra Wireless Device */
4db2299d
EP		 291 { USB_DEVICE(0x1199, 0x68A3), /* Sierra Wireless Direct IP modems */
292 .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist
19a3dd15
TC		 293 },
294 /* AT&T Direct IP LTE modems */
295 { USB_DEVICE_AND_INTERFACE_INFO(0x0F3D, 0x68AA, 0xFF, 0xFF, 0xFF),
296 .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist
4db2299d 297 },
e1dc5157
JT		 298 { USB_DEVICE(0x0f3d, 0x68A3), /* Airprime/Sierra Wireless Direct IP modems */
299 .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist
300 },
1ebca9da 301 { USB_DEVICE(0x413C, 0x08133) }, /* Dell Computer Corp. Wireless 5720 VZW Mobile Broadband (EVDO Rev-A) Minicard GPS Port */
4db2299d 302
033a3fb9
KL		 303 { }
304};
964ee1de 305MODULE_DEVICE_TABLE(usb, id_table);
033a3fb9 306
033a3fb9 307
033a3fb9 308struct sierra_port_private {
17c23274
GKH		 309 spinlock_t lock; /* lock the structure */
310 int outstanding_urbs; /* number of out urbs in flight */
e6929a90
ON		 311 struct usb_anchor active;
312 struct usb_anchor delayed;
17c23274 313
3a2b808e
EP		 314 int num_out_urbs;
315 int num_in_urbs;
4f4f9c53 316 /* Input endpoints and buffers for this port */
3a2b808e 317 struct urb *in_urbs[N_IN_URB_HM];
033a3fb9
KL		 318
319 /* Settings for the port */
320 int rts_state; /* Handshaking pins (outputs) */
321 int dtr_state;
322 int cts_state; /* Handshaking pins (inputs) */
323 int dsr_state;
324 int dcd_state;
325 int ri_state;
e6929a90 326 unsigned int opened:1;
033a3fb9
KL		 327};
328
335f8514 329static int sierra_send_setup(struct usb_serial_port *port)
69de51fd 330{
964ee1de
GKH		 331 struct usb_serial *serial = port->serial;
332 struct sierra_port_private *portdata;
228426ed 333 __u16 interface = 0;
335f8514 334 int val = 0;
3c77d513
EP		 335 int do_send = 0;
336 int retval;
033a3fb9 337
964ee1de 338 portdata = usb_get_serial_port_data(port);
033a3fb9 339
335f8514
AC		 340 if (portdata->dtr_state)
341 val |= 0x01;
342 if (portdata->rts_state)
343 val |= 0x02;
344
345 /* If composite device then properly report interface */
00b040de 346 if (serial->num_ports == 1) {
335f8514 347 interface = sierra_calc_interface(serial);
00b040de
AC		 348 /* Control message is sent only to interfaces with
349 * interrupt_in endpoints
350 */
351 if (port->interrupt_in_urb) {
352 /* send control message */
3c77d513 353 do_send = 1;
00b040de
AC		 354 }
355 }
335f8514
AC		 356
357 /* Otherwise the need to do non-composite mapping */
358 else {
359 if (port->bulk_out_endpointAddress == 2)
360 interface = 0;
361 else if (port->bulk_out_endpointAddress == 4)
362 interface = 1;
363 else if (port->bulk_out_endpointAddress == 5)
364 interface = 2;
3c77d513
EP		 365
366 do_send = 1;
00b040de 367 }
3c77d513
EP		 368 if (!do_send)
369 return 0;
370
5b7c1178
ON		 371 retval = usb_autopm_get_interface(serial->interface);
372 if (retval < 0)
373 return retval;
374
3c77d513
EP		 375 retval = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
376 0x22, 0x21, val, interface, NULL, 0, USB_CTRL_SET_TIMEOUT);
377 usb_autopm_put_interface(serial->interface);
378
379 return retval;
69de51fd
KL		 380}
381
95da310e
AC		 382static void sierra_set_termios(struct tty_struct *tty,
383 struct usb_serial_port *port, struct ktermios *old_termios)
033a3fb9 384{
adc8d746 385 tty_termios_copy_hw(&tty->termios, old_termios);
335f8514 386 sierra_send_setup(port);
033a3fb9
KL		 387}
388
60b33c13 389static int sierra_tiocmget(struct tty_struct *tty)
033a3fb9 390{
95da310e 391 struct usb_serial_port *port = tty->driver_data;
033a3fb9
KL		 392 unsigned int value;
393 struct sierra_port_private *portdata;
394
395 portdata = usb_get_serial_port_data(port);
396
397 value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
398 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
399 ((portdata->cts_state) ? TIOCM_CTS : 0) |
400 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
401 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
402 ((portdata->ri_state) ? TIOCM_RNG : 0);
403
404 return value;
405}
406
20b9d177 407static int sierra_tiocmset(struct tty_struct *tty,
033a3fb9
KL		 408 unsigned int set, unsigned int clear)
409{
95da310e 410 struct usb_serial_port *port = tty->driver_data;
033a3fb9
KL		 411 struct sierra_port_private *portdata;
412
413 portdata = usb_get_serial_port_data(port);
414
415 if (set & TIOCM_RTS)
416 portdata->rts_state = 1;
417 if (set & TIOCM_DTR)
418 portdata->dtr_state = 1;
419
420 if (clear & TIOCM_RTS)
421 portdata->rts_state = 0;
422 if (clear & TIOCM_DTR)
423 portdata->dtr_state = 0;
335f8514 424 return sierra_send_setup(port);
033a3fb9
KL		 425}
426
b9a44bc1
EP		 427static void sierra_release_urb(struct urb *urb)
428{
429 struct usb_serial_port *port;
430 if (urb) {
64318a52 431 port = urb->context;
b9a44bc1
EP		 432 kfree(urb->transfer_buffer);
433 usb_free_urb(urb);
434 }
435}
436
17c23274
GKH		 437static void sierra_outdat_callback(struct urb *urb)
438{
439 struct usb_serial_port *port = urb->context;
440 struct sierra_port_private *portdata = usb_get_serial_port_data(port);
e6929a90 441 struct sierra_intf_private *intfdata;
17c23274 442 int status = urb->status;
17c23274 443
e6929a90 444 intfdata = port->serial->private;
17c23274
GKH		 445
446 /* free up the transfer buffer, as usb_free_urb() does not do this */
447 kfree(urb->transfer_buffer);
e6929a90 448 usb_autopm_put_interface_async(port->serial->interface);
17c23274 449 if (status)
7384a922 450 dev_dbg(&port->dev, "%s - nonzero write bulk status "
5d44b361 451 "received: %d\n", __func__, status);
17c23274 452
e6929a90 453 spin_lock(&portdata->lock);
17c23274 454 --portdata->outstanding_urbs;
e6929a90
ON		 455 spin_unlock(&portdata->lock);
456 spin_lock(&intfdata->susp_lock);
457 --intfdata->in_flight;
458 spin_unlock(&intfdata->susp_lock);
17c23274
GKH		 459
460 usb_serial_port_softint(port);
461}
462
033a3fb9 463/* Write */
95da310e
AC		 464static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port,
465 const unsigned char *buf, int count)
033a3fb9 466{
a45a1e07 467 struct sierra_port_private *portdata;
e6929a90 468 struct sierra_intf_private *intfdata;
17c23274
GKH		 469 struct usb_serial *serial = port->serial;
470 unsigned long flags;
471 unsigned char *buffer;
472 struct urb *urb;
40d2ff32
EP		 473 size_t writesize = min((size_t)count, (size_t)MAX_TRANSFER);
474 int retval = 0;
475
476 /* verify that we actually have some data to write */
477 if (count == 0)
478 return 0;
033a3fb9
KL		 479
480 portdata = usb_get_serial_port_data(port);
e6929a90 481 intfdata = serial->private;
033a3fb9 482
0b10395a 483 dev_dbg(&port->dev, "%s: write (%zd bytes)\n", __func__, writesize);
17c23274 484 spin_lock_irqsave(&portdata->lock, flags);
40d2ff32
EP		 485 dev_dbg(&port->dev, "%s - outstanding_urbs: %d\n", __func__,
486 portdata->outstanding_urbs);
3a2b808e 487 if (portdata->outstanding_urbs > portdata->num_out_urbs) {
17c23274 488 spin_unlock_irqrestore(&portdata->lock, flags);
7384a922 489 dev_dbg(&port->dev, "%s - write limit hit\n", __func__);
17c23274
GKH		 490 return 0;
491 }
492 portdata->outstanding_urbs++;
40d2ff32
EP		 493 dev_dbg(&port->dev, "%s - 1, outstanding_urbs: %d\n", __func__,
494 portdata->outstanding_urbs);
17c23274
GKH		 495 spin_unlock_irqrestore(&portdata->lock, flags);
496
e6929a90
ON		 497 retval = usb_autopm_get_interface_async(serial->interface);
498 if (retval < 0) {
499 spin_lock_irqsave(&portdata->lock, flags);
500 portdata->outstanding_urbs--;
501 spin_unlock_irqrestore(&portdata->lock, flags);
502 goto error_simple;
503 }
504
40d2ff32 505 buffer = kmalloc(writesize, GFP_ATOMIC);
17c23274
GKH		 506 if (!buffer) {
507 dev_err(&port->dev, "out of memory\n");
40d2ff32 508 retval = -ENOMEM;
17c23274
GKH		 509 goto error_no_buffer;
510 }
033a3fb9 511
17c23274
GKH		 512 urb = usb_alloc_urb(0, GFP_ATOMIC);
513 if (!urb) {
514 dev_err(&port->dev, "no more free urbs\n");
40d2ff32 515 retval = -ENOMEM;
17c23274
GKH		 516 goto error_no_urb;
517 }
033a3fb9 518
40d2ff32 519 memcpy(buffer, buf, writesize);
033a3fb9 520
40d2ff32 521 usb_serial_debug_data(debug, &port->dev, __func__, writesize, buffer);
17c23274
GKH		 522
523 usb_fill_bulk_urb(urb, serial->dev,
524 usb_sndbulkpipe(serial->dev,
525 port->bulk_out_endpointAddress),
40d2ff32 526 buffer, writesize, sierra_outdat_callback, port);
17c23274 527
238ebd13
EP		 528 /* Handle the need to send a zero length packet */
529 urb->transfer_flags |= URB_ZERO_PACKET;
530
e6929a90
ON		 531 spin_lock_irqsave(&intfdata->susp_lock, flags);
532
533 if (intfdata->suspended) {
534 usb_anchor_urb(urb, &portdata->delayed);
535 spin_unlock_irqrestore(&intfdata->susp_lock, flags);
536 goto skip_power;
537 } else {
538 usb_anchor_urb(urb, &portdata->active);
539 }
17c23274 540 /* send it down the pipe */
40d2ff32
EP		 541 retval = usb_submit_urb(urb, GFP_ATOMIC);
542 if (retval) {
e6929a90
ON		 543 usb_unanchor_urb(urb);
544 spin_unlock_irqrestore(&intfdata->susp_lock, flags);
17c23274 545 dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed "
40d2ff32 546 "with status = %d\n", __func__, retval);
17c23274 547 goto error;
e6929a90
ON		 548 } else {
549 intfdata->in_flight++;
550 spin_unlock_irqrestore(&intfdata->susp_lock, flags);
033a3fb9
KL		 551 }
552
e6929a90 553skip_power:
17c23274
GKH		 554 /* we are done with this urb, so let the host driver
555 * really free it when it is finished with it */
556 usb_free_urb(urb);
557
40d2ff32 558 return writesize;
17c23274
GKH		 559error:
560 usb_free_urb(urb);
561error_no_urb:
562 kfree(buffer);
563error_no_buffer:
564 spin_lock_irqsave(&portdata->lock, flags);
565 --portdata->outstanding_urbs;
40d2ff32
EP		 566 dev_dbg(&port->dev, "%s - 2. outstanding_urbs: %d\n", __func__,
567 portdata->outstanding_urbs);
17c23274 568 spin_unlock_irqrestore(&portdata->lock, flags);
e6929a90
ON		 569 usb_autopm_put_interface_async(serial->interface);
570error_simple:
40d2ff32 571 return retval;
033a3fb9
KL		 572}
573
574static void sierra_indat_callback(struct urb *urb)
575{
576 int err;
577 int endpoint;
578 struct usb_serial_port *port;
579 struct tty_struct *tty;
580 unsigned char *data = urb->transfer_buffer;
17dd2215 581 int status = urb->status;
033a3fb9 582
033a3fb9 583 endpoint = usb_pipeendpoint(urb->pipe);
b0cda8c5
EP		 584 port = urb->context;
585
17dd2215 586 if (status) {
7384a922 587 dev_dbg(&port->dev, "%s: nonzero status: %d on"
5d44b361 588 " endpoint %02x\n", __func__, status, endpoint);
033a3fb9 589 } else {
033a3fb9 590 if (urb->actual_length) {
d95186d1 591 tty = tty_port_tty_get(&port->port);
b87c6e86 592 if (tty) {
b87c6e86
EP		 593 tty_insert_flip_string(tty, data,
594 urb->actual_length);
595 tty_flip_buffer_push(tty);
596
597 tty_kref_put(tty);
598 usb_serial_debug_data(debug, &port->dev,
599 __func__, urb->actual_length, data);
600 }
b0cda8c5 601 } else {
7384a922 602 dev_dbg(&port->dev, "%s: empty read urb"
5d44b361 603 " received\n", __func__);
033a3fb9
KL		 604 }
605 }
b0cda8c5
EP		 606
607 /* Resubmit urb so we continue receiving */
1f87158e 608 if (status != -ESHUTDOWN && status != -EPERM) {
e6929a90 609 usb_mark_last_busy(port->serial->dev);
b0cda8c5 610 err = usb_submit_urb(urb, GFP_ATOMIC);
1f87158e 611 if (err && err != -EPERM)
b0cda8c5
EP		 612 dev_err(&port->dev, "resubmit read urb failed."
613 "(%d)\n", err);
614 }
033a3fb9
KL		 615}
616
033a3fb9
KL		 617static void sierra_instat_callback(struct urb *urb)
618{
619 int err;
17dd2215 620 int status = urb->status;
cdc97792 621 struct usb_serial_port *port = urb->context;
033a3fb9
KL		 622 struct sierra_port_private *portdata = usb_get_serial_port_data(port);
623 struct usb_serial *serial = port->serial;
624
5d44b361 625 dev_dbg(&port->dev, "%s: urb %p port %p has data %p\n", __func__,
7384a922 626 urb, port, portdata);
033a3fb9 627
17dd2215 628 if (status == 0) {
033a3fb9
KL		 629 struct usb_ctrlrequest *req_pkt =
630 (struct usb_ctrlrequest *)urb->transfer_buffer;
631
632 if (!req_pkt) {
7384a922
KL		 633 dev_dbg(&port->dev, "%s: NULL req_pkt\n",
634 __func__);
033a3fb9
KL		 635 return;
636 }
637 if ((req_pkt->bRequestType == 0xA1) &&
638 (req_pkt->bRequest == 0x20)) {
639 int old_dcd_state;
640 unsigned char signals = *((unsigned char *)
641 urb->transfer_buffer +
642 sizeof(struct usb_ctrlrequest));
4a90f09b 643 struct tty_struct *tty;
033a3fb9 644
5d44b361 645 dev_dbg(&port->dev, "%s: signal x%x\n", __func__,
7384a922 646 signals);
033a3fb9
KL		 647
648 old_dcd_state = portdata->dcd_state;
649 portdata->cts_state = 1;
650 portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
651 portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
652 portdata->ri_state = ((signals & 0x08) ? 1 : 0);
653
4a90f09b
AC		 654 tty = tty_port_tty_get(&port->port);
655 if (tty && !C_CLOCAL(tty) &&
033a3fb9 656 old_dcd_state && !portdata->dcd_state)
4a90f09b
AC		 657 tty_hangup(tty);
658 tty_kref_put(tty);
033a3fb9 659 } else {
5d44b361 660 dev_dbg(&port->dev, "%s: type %x req %x\n",
7384a922
KL		 661 __func__, req_pkt->bRequestType,
662 req_pkt->bRequest);
033a3fb9
KL		 663 }
664 } else
5d44b361 665 dev_dbg(&port->dev, "%s: error %d\n", __func__, status);
033a3fb9
KL		 666
667 /* Resubmit urb so we continue receiving IRQ data */
1f87158e 668 if (status != -ESHUTDOWN && status != -ENOENT) {
e6929a90 669 usb_mark_last_busy(serial->dev);
033a3fb9 670 err = usb_submit_urb(urb, GFP_ATOMIC);
1f87158e 671 if (err && err != -EPERM)
c76a23da
EP		 672 dev_err(&port->dev, "%s: resubmit intr urb "
673 "failed. (%d)\n", __func__, err);
033a3fb9
KL		 674 }
675}
676
95da310e 677static int sierra_write_room(struct tty_struct *tty)
033a3fb9 678{
95da310e 679 struct usb_serial_port *port = tty->driver_data;
17c23274
GKH		 680 struct sierra_port_private *portdata = usb_get_serial_port_data(port);
681 unsigned long flags;
033a3fb9 682
17c23274
GKH		 683 /* try to give a good number back based on if we have any free urbs at
684 * this point in time */
685 spin_lock_irqsave(&portdata->lock, flags);
3a2b808e 686 if (portdata->outstanding_urbs > (portdata->num_out_urbs * 2) / 3) {
17c23274 687 spin_unlock_irqrestore(&portdata->lock, flags);
7384a922 688 dev_dbg(&port->dev, "%s - write limit hit\n", __func__);
17c23274 689 return 0;
033a3fb9 690 }
17c23274 691 spin_unlock_irqrestore(&portdata->lock, flags);
033a3fb9 692
17c23274 693 return 2048;
033a3fb9
KL		 694}
695
b9a44bc1 696static void sierra_stop_rx_urbs(struct usb_serial_port *port)
033a3fb9 697{
9e85c5f6 698 int i;
b9a44bc1 699 struct sierra_port_private *portdata = usb_get_serial_port_data(port);
033a3fb9 700
3a2b808e 701 for (i = 0; i < portdata->num_in_urbs; i++)
b9a44bc1 702 usb_kill_urb(portdata->in_urbs[i]);
033a3fb9 703
b9a44bc1
EP		 704 usb_kill_urb(port->interrupt_in_urb);
705}
033a3fb9 706
b9a44bc1
EP		 707static int sierra_submit_rx_urbs(struct usb_serial_port *port, gfp_t mem_flags)
708{
709 int ok_cnt;
710 int err = -EINVAL;
711 int i;
712 struct urb *urb;
713 struct sierra_port_private *portdata = usb_get_serial_port_data(port);
033a3fb9 714
b9a44bc1 715 ok_cnt = 0;
3a2b808e 716 for (i = 0; i < portdata->num_in_urbs; i++) {
033a3fb9 717 urb = portdata->in_urbs[i];
9e85c5f6 718 if (!urb)
033a3fb9 719 continue;
b9a44bc1
EP		 720 err = usb_submit_urb(urb, mem_flags);
721 if (err) {
722 dev_err(&port->dev, "%s: submit urb failed: %d\n",
723 __func__, err);
724 } else {
725 ok_cnt++;
033a3fb9 726 }
b9a44bc1 727 }
033a3fb9 728
b9a44bc1
EP		 729 if (ok_cnt && port->interrupt_in_urb) {
730 err = usb_submit_urb(port->interrupt_in_urb, mem_flags);
731 if (err) {
732 dev_err(&port->dev, "%s: submit intr urb failed: %d\n",
733 __func__, err);
033a3fb9
KL		 734 }
735 }
736
b9a44bc1
EP		 737 if (ok_cnt > 0) /* at least one rx urb submitted */
738 return 0;
739 else
740 return err;
741}
742
743static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint,
744 int dir, void *ctx, int len,
745 gfp_t mem_flags,
746 usb_complete_t callback)
747{
748 struct urb *urb;
749 u8 *buf;
750
751 if (endpoint == -1)
752 return NULL;
033a3fb9 753
b9a44bc1
EP		 754 urb = usb_alloc_urb(0, mem_flags);
755 if (urb == NULL) {
756 dev_dbg(&serial->dev->dev, "%s: alloc for endpoint %d failed\n",
757 __func__, endpoint);
758 return NULL;
9e85c5f6 759 }
b9a44bc1
EP		 760
761 buf = kmalloc(len, mem_flags);
762 if (buf) {
763 /* Fill URB using supplied data */
764 usb_fill_bulk_urb(urb, serial->dev,
765 usb_sndbulkpipe(serial->dev, endpoint) | dir,
766 buf, len, callback, ctx);
767
768 /* debug */
769 dev_dbg(&serial->dev->dev, "%s %c u : %p d:%p\n", __func__,
770 dir == USB_DIR_IN ? 'i' : 'o', urb, buf);
771 } else {
772 dev_dbg(&serial->dev->dev, "%s %c u:%p d:%p\n", __func__,
773 dir == USB_DIR_IN ? 'i' : 'o', urb, buf);
774
775 sierra_release_urb(urb);
776 urb = NULL;
777 }
778
779 return urb;
033a3fb9
KL		 780}
781
b9a44bc1 782static void sierra_close(struct usb_serial_port *port)
033a3fb9 783{
b9a44bc1 784 int i;
033a3fb9
KL		 785 struct usb_serial *serial = port->serial;
786 struct sierra_port_private *portdata;
e6929a90
ON		 787 struct sierra_intf_private *intfdata = port->serial->private;
788
033a3fb9 789 portdata = usb_get_serial_port_data(port);
b9a44bc1
EP		 790
791 portdata->rts_state = 0;
792 portdata->dtr_state = 0;
033a3fb9
KL		 793
794 if (serial->dev) {
e33fe4d8 795 mutex_lock(&serial->disc_mutex);
b64dc0a5
EP		 796 if (!serial->disconnected) {
797 serial->interface->needs_remote_wakeup = 0;
5b7c1178
ON		 798 /* odd error handling due to pm counters */
799 if (!usb_autopm_get_interface(serial->interface))
800 sierra_send_setup(port);
801 else
802 usb_autopm_get_interface_no_resume(serial->interface);
803
b64dc0a5 804 }
e33fe4d8 805 mutex_unlock(&serial->disc_mutex);
e6929a90
ON		 806 spin_lock_irq(&intfdata->susp_lock);
807 portdata->opened = 0;
808 spin_unlock_irq(&intfdata->susp_lock);
809
b9a44bc1
EP		 810
811 /* Stop reading urbs */
812 sierra_stop_rx_urbs(port);
813 /* .. and release them */
3a2b808e 814 for (i = 0; i < portdata->num_in_urbs; i++) {
b9a44bc1
EP		 815 sierra_release_urb(portdata->in_urbs[i]);
816 portdata->in_urbs[i] = NULL;
817 }
335f8514
AC		 818 }
819}
820
a509a7e4 821static int sierra_open(struct tty_struct *tty, struct usb_serial_port *port)
335f8514 822{
b9a44bc1
EP		 823 struct sierra_port_private *portdata;
824 struct usb_serial *serial = port->serial;
e6929a90 825 struct sierra_intf_private *intfdata = serial->private;
335f8514 826 int i;
b9a44bc1
EP		 827 int err;
828 int endpoint;
829 struct urb *urb;
830
831 portdata = usb_get_serial_port_data(port);
832
b9a44bc1
EP		 833 /* Set some sane defaults */
834 portdata->rts_state = 1;
835 portdata->dtr_state = 1;
836
837
838 endpoint = port->bulk_in_endpointAddress;
3a2b808e 839 for (i = 0; i < portdata->num_in_urbs; i++) {
b9a44bc1
EP		 840 urb = sierra_setup_urb(serial, endpoint, USB_DIR_IN, port,
841 IN_BUFLEN, GFP_KERNEL,
842 sierra_indat_callback);
843 portdata->in_urbs[i] = urb;
844 }
845 /* clear halt condition */
846 usb_clear_halt(serial->dev,
847 usb_sndbulkpipe(serial->dev, endpoint) | USB_DIR_IN);
848
849 err = sierra_submit_rx_urbs(port, GFP_KERNEL);
850 if (err) {
851 /* get rid of everything as in close */
852 sierra_close(port);
b64dc0a5 853 /* restore balance for autopm */
5b7c1178
ON		 854 if (!serial->disconnected)
855 usb_autopm_put_interface(serial->interface);
b9a44bc1
EP		 856 return err;
857 }
858 sierra_send_setup(port);
859
e6929a90
ON		 860 serial->interface->needs_remote_wakeup = 1;
861 spin_lock_irq(&intfdata->susp_lock);
862 portdata->opened = 1;
863 spin_unlock_irq(&intfdata->susp_lock);
864 usb_autopm_put_interface(serial->interface);
865
b9a44bc1
EP		 866 return 0;
867}
868
869
870static void sierra_dtr_rts(struct usb_serial_port *port, int on)
871{
335f8514
AC		 872 struct usb_serial *serial = port->serial;
873 struct sierra_port_private *portdata;
033a3fb9 874
335f8514 875 portdata = usb_get_serial_port_data(port);
b9a44bc1
EP		 876 portdata->rts_state = on;
877 portdata->dtr_state = on;
335f8514
AC		 878
879 if (serial->dev) {
b9a44bc1
EP		 880 mutex_lock(&serial->disc_mutex);
881 if (!serial->disconnected)
882 sierra_send_setup(port);
883 mutex_unlock(&serial->disc_mutex);
033a3fb9 884 }
033a3fb9
KL		 885}
886
033a3fb9
KL		 887static int sierra_startup(struct usb_serial *serial)
888{
033a3fb9
KL		 889 struct usb_serial_port *port;
890 struct sierra_port_private *portdata;
3a2b808e 891 struct sierra_iface_info *himemoryp = NULL;
9e85c5f6 892 int i;
3a2b808e 893 u8 ifnum;
033a3fb9 894
228426ed 895 /* Set Device mode to D0 */
112225b1
KL		 896 sierra_set_power_state(serial->dev, 0x0000);
897
228426ed
KL		 898 /* Check NMEA and set */
899 if (nmea)
900 sierra_vsc_set_nmea(serial->dev, 1);
901
033a3fb9
KL		 902 /* Now setup per port private data */
903 for (i = 0; i < serial->num_ports; i++) {
904 port = serial->port[i];
905 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
906 if (!portdata) {
7384a922 907 dev_dbg(&port->dev, "%s: kmalloc for "
3a2b808e 908 "sierra_port_private (%d) failed!\n",
7384a922 909 __func__, i);
17c23274 910 return -ENOMEM;
033a3fb9 911 }
17c23274 912 spin_lock_init(&portdata->lock);
e6929a90
ON		 913 init_usb_anchor(&portdata->active);
914 init_usb_anchor(&portdata->delayed);
3a2b808e
EP		 915 ifnum = i;
916 /* Assume low memory requirements */
917 portdata->num_out_urbs = N_OUT_URB;
918 portdata->num_in_urbs = N_IN_URB;
919
920 /* Determine actual memory requirements */
921 if (serial->num_ports == 1) {
922 /* Get interface number for composite device */
923 ifnum = sierra_calc_interface(serial);
924 himemoryp =
925 (struct sierra_iface_info *)&typeB_interface_list;
926 if (is_himemory(ifnum, himemoryp)) {
927 portdata->num_out_urbs = N_OUT_URB_HM;
928 portdata->num_in_urbs = N_IN_URB_HM;
929 }
930 }
931 else {
932 himemoryp =
933 (struct sierra_iface_info *)&typeA_interface_list;
934 if (is_himemory(i, himemoryp)) {
935 portdata->num_out_urbs = N_OUT_URB_HM;
936 portdata->num_in_urbs = N_IN_URB_HM;
937 }
938 }
939 dev_dbg(&serial->dev->dev,
940 "Memory usage (urbs) interface #%d, in=%d, out=%d\n",
941 ifnum,portdata->num_in_urbs, portdata->num_out_urbs );
b9a44bc1 942 /* Set the port private data pointer */
033a3fb9 943 usb_set_serial_port_data(port, portdata);
033a3fb9
KL		 944 }
945
17c23274 946 return 0;
033a3fb9
KL		 947}
948
7bae0a07 949static void sierra_release(struct usb_serial *serial)
033a3fb9 950{
b9a44bc1 951 int i;
033a3fb9
KL		 952 struct usb_serial_port *port;
953 struct sierra_port_private *portdata;
954
033a3fb9
KL		 955 for (i = 0; i < serial->num_ports; ++i) {
956 port = serial->port[i];
f094e4f3
GKH		 957 if (!port)
958 continue;
033a3fb9 959 portdata = usb_get_serial_port_data(port);
f094e4f3
GKH		 960 if (!portdata)
961 continue;
9e85c5f6 962 kfree(portdata);
033a3fb9
KL		 963 }
964}
965
cd604513 966#ifdef CONFIG_PM
e6929a90
ON		 967static void stop_read_write_urbs(struct usb_serial *serial)
968{
b64dc0a5 969 int i;
e6929a90
ON		 970 struct usb_serial_port *port;
971 struct sierra_port_private *portdata;
972
973 /* Stop reading/writing urbs */
974 for (i = 0; i < serial->num_ports; ++i) {
975 port = serial->port[i];
976 portdata = usb_get_serial_port_data(port);
b64dc0a5 977 sierra_stop_rx_urbs(port);
e6929a90
ON		 978 usb_kill_anchored_urbs(&portdata->active);
979 }
980}
981
982static int sierra_suspend(struct usb_serial *serial, pm_message_t message)
983{
984 struct sierra_intf_private *intfdata;
985 int b;
986
5b1b0b81 987 if (PMSG_IS_AUTO(message)) {
e6929a90
ON		 988 intfdata = serial->private;
989 spin_lock_irq(&intfdata->susp_lock);
990 b = intfdata->in_flight;
991
992 if (b) {
993 spin_unlock_irq(&intfdata->susp_lock);
994 return -EBUSY;
995 } else {
996 intfdata->suspended = 1;
997 spin_unlock_irq(&intfdata->susp_lock);
998 }
999 }
1000 stop_read_write_urbs(serial);
1001
1002 return 0;
1003}
1004
1005static int sierra_resume(struct usb_serial *serial)
1006{
1007 struct usb_serial_port *port;
1008 struct sierra_intf_private *intfdata = serial->private;
1009 struct sierra_port_private *portdata;
1010 struct urb *urb;
1011 int ec = 0;
1012 int i, err;
1013
1014 spin_lock_irq(&intfdata->susp_lock);
1015 for (i = 0; i < serial->num_ports; i++) {
1016 port = serial->port[i];
1017 portdata = usb_get_serial_port_data(port);
1018
1019 while ((urb = usb_get_from_anchor(&portdata->delayed))) {
1020 usb_anchor_urb(urb, &portdata->active);
1021 intfdata->in_flight++;
1022 err = usb_submit_urb(urb, GFP_ATOMIC);
1023 if (err < 0) {
1024 intfdata->in_flight--;
1025 usb_unanchor_urb(urb);
1026 usb_scuttle_anchored_urbs(&portdata->delayed);
1027 break;
1028 }
1029 }
1030
1031 if (portdata->opened) {
1032 err = sierra_submit_rx_urbs(port, GFP_ATOMIC);
1033 if (err)
1034 ec++;
1035 }
1036 }
1037 intfdata->suspended = 0;
1038 spin_unlock_irq(&intfdata->susp_lock);
1039
1040 return ec ? -EIO : 0;
1041}
7650cd96 1042
cd604513
AM		 1043#else
1044#define sierra_suspend NULL
1045#define sierra_resume NULL
1046#endif
e6929a90 1047
228426ed 1048static struct usb_serial_driver sierra_device = {
964ee1de
GKH		 1049 .driver = {
1050 .owner = THIS_MODULE,
4e0fee82 1051 .name = "sierra",
964ee1de 1052 },
228426ed
KL		 1053 .description = "Sierra USB modem",
1054 .id_table = id_table,
228426ed
KL		 1055 .calc_num_ports = sierra_calc_num_ports,
1056 .probe = sierra_probe,
964ee1de
GKH		 1057 .open = sierra_open,
1058 .close = sierra_close,
335f8514 1059 .dtr_rts = sierra_dtr_rts,
964ee1de
GKH		 1060 .write = sierra_write,
1061 .write_room = sierra_write_room,
964ee1de 1062 .set_termios = sierra_set_termios,
964ee1de
GKH		 1063 .tiocmget = sierra_tiocmget,
1064 .tiocmset = sierra_tiocmset,
1065 .attach = sierra_startup,
7bae0a07 1066 .release = sierra_release,
e6929a90
ON		 1067 .suspend = sierra_suspend,
1068 .resume = sierra_resume,
964ee1de
GKH		 1069 .read_int_callback = sierra_instat_callback,
1070};
1071
d860322f
AS		 1072static struct usb_serial_driver * const serial_drivers[] = {
1073 &sierra_device, NULL
1074};
1075
68e24113 1076module_usb_serial_driver(serial_drivers, id_table);
964ee1de 1077
033a3fb9
KL		 1078MODULE_AUTHOR(DRIVER_AUTHOR);
1079MODULE_DESCRIPTION(DRIVER_DESC);
1080MODULE_VERSION(DRIVER_VERSION);
69de51fd 1081MODULE_LICENSE("GPL");
033a3fb9 1082
4e0fee82 1083module_param(nmea, bool, S_IRUGO | S_IWUSR);
228426ed
KL		 1084MODULE_PARM_DESC(nmea, "NMEA streaming");
1085
033a3fb9
KL		 1086module_param(debug, bool, S_IRUGO | S_IWUSR);
1087MODULE_PARM_DESC(debug, "Debug messages");
Linux kernel - Deliverables
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