option.c revision 3b498a66a698c581535c0fcf1a8907f3fe9449cc
1/*
2  USB Driver for GSM modems
3
4  Copyright (C) 2005  Matthias Urlichs <smurf@smurf.noris.de>
5
6  This driver is free software; you can redistribute it and/or modify
7  it under the terms of Version 2 of the GNU General Public License as
8  published by the Free Software Foundation.
9
10  Portions copied from the Keyspan driver by Hugh Blemings <hugh@blemings.org>
11
12  History: see the git log.
13
14  Work sponsored by: Sigos GmbH, Germany <info@sigos.de>
15
16  This driver exists because the "normal" serial driver doesn't work too well
17  with GSM modems. Issues:
18  - data loss -- one single Receive URB is not nearly enough
19  - nonstandard flow (Option devices) control
20  - controlling the baud rate doesn't make sense
21
22  This driver is named "option" because the most common device it's
23  used for is a PC-Card (with an internal OHCI-USB interface, behind
24  which the GSM interface sits), made by Option Inc.
25
26  Some of the "one port" devices actually exhibit multiple USB instances
27  on the USB bus. This is not a bug, these ports are used for different
28  device features.
29*/
30
31#define DRIVER_VERSION "v0.7.2"
32#define DRIVER_AUTHOR "Matthias Urlichs <smurf@smurf.noris.de>"
33#define DRIVER_DESC "USB Driver for GSM modems"
34
35#include <linux/kernel.h>
36#include <linux/jiffies.h>
37#include <linux/errno.h>
38#include <linux/tty.h>
39#include <linux/tty_flip.h>
40#include <linux/module.h>
41#include <linux/bitops.h>
42#include <linux/usb.h>
43#include <linux/usb/serial.h>
44
45/* Function prototypes */
46static int  option_open(struct tty_struct *tty, struct usb_serial_port *port,
47							struct file *filp);
48static void option_close(struct tty_struct *tty, struct usb_serial_port *port,
49							struct file *filp);
50static int  option_startup(struct usb_serial *serial);
51static void option_shutdown(struct usb_serial *serial);
52static int  option_write_room(struct tty_struct *tty);
53
54static void option_instat_callback(struct urb *urb);
55
56static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
57			const unsigned char *buf, int count);
58static int  option_chars_in_buffer(struct tty_struct *tty);
59static void option_set_termios(struct tty_struct *tty,
60			struct usb_serial_port *port, struct ktermios *old);
61static int  option_tiocmget(struct tty_struct *tty, struct file *file);
62static int  option_tiocmset(struct tty_struct *tty, struct file *file,
63				unsigned int set, unsigned int clear);
64static int  option_send_setup(struct tty_struct *tty, struct usb_serial_port *port);
65
66/* Vendor and product IDs */
67#define OPTION_VENDOR_ID			0x0AF0
68#define OPTION_PRODUCT_COLT			0x5000
69#define OPTION_PRODUCT_RICOLA			0x6000
70#define OPTION_PRODUCT_RICOLA_LIGHT		0x6100
71#define OPTION_PRODUCT_RICOLA_QUAD		0x6200
72#define OPTION_PRODUCT_RICOLA_QUAD_LIGHT	0x6300
73#define OPTION_PRODUCT_RICOLA_NDIS		0x6050
74#define OPTION_PRODUCT_RICOLA_NDIS_LIGHT	0x6150
75#define OPTION_PRODUCT_RICOLA_NDIS_QUAD		0x6250
76#define OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT	0x6350
77#define OPTION_PRODUCT_COBRA			0x6500
78#define OPTION_PRODUCT_COBRA_BUS		0x6501
79#define OPTION_PRODUCT_VIPER			0x6600
80#define OPTION_PRODUCT_VIPER_BUS		0x6601
81#define OPTION_PRODUCT_GT_MAX_READY		0x6701
82#define OPTION_PRODUCT_FUJI_MODEM_LIGHT		0x6721
83#define OPTION_PRODUCT_FUJI_MODEM_GT		0x6741
84#define OPTION_PRODUCT_FUJI_MODEM_EX		0x6761
85#define OPTION_PRODUCT_KOI_MODEM		0x6800
86#define OPTION_PRODUCT_SCORPION_MODEM		0x6901
87#define OPTION_PRODUCT_ETNA_MODEM		0x7001
88#define OPTION_PRODUCT_ETNA_MODEM_LITE		0x7021
89#define OPTION_PRODUCT_ETNA_MODEM_GT		0x7041
90#define OPTION_PRODUCT_ETNA_MODEM_EX		0x7061
91#define OPTION_PRODUCT_ETNA_KOI_MODEM		0x7100
92
93#define HUAWEI_VENDOR_ID			0x12D1
94#define HUAWEI_PRODUCT_E600			0x1001
95#define HUAWEI_PRODUCT_E220			0x1003
96#define HUAWEI_PRODUCT_E220BIS			0x1004
97#define HUAWEI_PRODUCT_E1401			0x1401
98#define HUAWEI_PRODUCT_E1402			0x1402
99#define HUAWEI_PRODUCT_E1403			0x1403
100#define HUAWEI_PRODUCT_E1404			0x1404
101#define HUAWEI_PRODUCT_E1405			0x1405
102#define HUAWEI_PRODUCT_E1406			0x1406
103#define HUAWEI_PRODUCT_E1407			0x1407
104#define HUAWEI_PRODUCT_E1408			0x1408
105#define HUAWEI_PRODUCT_E1409			0x1409
106#define HUAWEI_PRODUCT_E140A			0x140A
107#define HUAWEI_PRODUCT_E140B			0x140B
108#define HUAWEI_PRODUCT_E140C			0x140C
109#define HUAWEI_PRODUCT_E140D			0x140D
110#define HUAWEI_PRODUCT_E140E			0x140E
111#define HUAWEI_PRODUCT_E140F			0x140F
112#define HUAWEI_PRODUCT_E1410			0x1410
113#define HUAWEI_PRODUCT_E1411			0x1411
114#define HUAWEI_PRODUCT_E1412			0x1412
115#define HUAWEI_PRODUCT_E1413			0x1413
116#define HUAWEI_PRODUCT_E1414			0x1414
117#define HUAWEI_PRODUCT_E1415			0x1415
118#define HUAWEI_PRODUCT_E1416			0x1416
119#define HUAWEI_PRODUCT_E1417			0x1417
120#define HUAWEI_PRODUCT_E1418			0x1418
121#define HUAWEI_PRODUCT_E1419			0x1419
122#define HUAWEI_PRODUCT_E141A			0x141A
123#define HUAWEI_PRODUCT_E141B			0x141B
124#define HUAWEI_PRODUCT_E141C			0x141C
125#define HUAWEI_PRODUCT_E141D			0x141D
126#define HUAWEI_PRODUCT_E141E			0x141E
127#define HUAWEI_PRODUCT_E141F			0x141F
128#define HUAWEI_PRODUCT_E1420			0x1420
129#define HUAWEI_PRODUCT_E1421			0x1421
130#define HUAWEI_PRODUCT_E1422			0x1422
131#define HUAWEI_PRODUCT_E1423			0x1423
132#define HUAWEI_PRODUCT_E1424			0x1424
133#define HUAWEI_PRODUCT_E1425			0x1425
134#define HUAWEI_PRODUCT_E1426			0x1426
135#define HUAWEI_PRODUCT_E1427			0x1427
136#define HUAWEI_PRODUCT_E1428			0x1428
137#define HUAWEI_PRODUCT_E1429			0x1429
138#define HUAWEI_PRODUCT_E142A			0x142A
139#define HUAWEI_PRODUCT_E142B			0x142B
140#define HUAWEI_PRODUCT_E142C			0x142C
141#define HUAWEI_PRODUCT_E142D			0x142D
142#define HUAWEI_PRODUCT_E142E			0x142E
143#define HUAWEI_PRODUCT_E142F			0x142F
144#define HUAWEI_PRODUCT_E1430			0x1430
145#define HUAWEI_PRODUCT_E1431			0x1431
146#define HUAWEI_PRODUCT_E1432			0x1432
147#define HUAWEI_PRODUCT_E1433			0x1433
148#define HUAWEI_PRODUCT_E1434			0x1434
149#define HUAWEI_PRODUCT_E1435			0x1435
150#define HUAWEI_PRODUCT_E1436			0x1436
151#define HUAWEI_PRODUCT_E1437			0x1437
152#define HUAWEI_PRODUCT_E1438			0x1438
153#define HUAWEI_PRODUCT_E1439			0x1439
154#define HUAWEI_PRODUCT_E143A			0x143A
155#define HUAWEI_PRODUCT_E143B			0x143B
156#define HUAWEI_PRODUCT_E143C			0x143C
157#define HUAWEI_PRODUCT_E143D			0x143D
158#define HUAWEI_PRODUCT_E143E			0x143E
159#define HUAWEI_PRODUCT_E143F			0x143F
160
161#define NOVATELWIRELESS_VENDOR_ID		0x1410
162
163/* YISO PRODUCTS */
164
165#define YISO_VENDOR_ID				0x0EAB
166#define YISO_PRODUCT_U893			0xC893
167
168/* MERLIN EVDO PRODUCTS */
169#define NOVATELWIRELESS_PRODUCT_V640		0x1100
170#define NOVATELWIRELESS_PRODUCT_V620		0x1110
171#define NOVATELWIRELESS_PRODUCT_V740		0x1120
172#define NOVATELWIRELESS_PRODUCT_V720		0x1130
173
174/* MERLIN HSDPA/HSPA PRODUCTS */
175#define NOVATELWIRELESS_PRODUCT_U730		0x1400
176#define NOVATELWIRELESS_PRODUCT_U740		0x1410
177#define NOVATELWIRELESS_PRODUCT_U870		0x1420
178#define NOVATELWIRELESS_PRODUCT_XU870		0x1430
179#define NOVATELWIRELESS_PRODUCT_X950D		0x1450
180
181/* EXPEDITE PRODUCTS */
182#define NOVATELWIRELESS_PRODUCT_EV620		0x2100
183#define NOVATELWIRELESS_PRODUCT_ES720		0x2110
184#define NOVATELWIRELESS_PRODUCT_E725		0x2120
185#define NOVATELWIRELESS_PRODUCT_ES620		0x2130
186#define NOVATELWIRELESS_PRODUCT_EU730		0x2400
187#define NOVATELWIRELESS_PRODUCT_EU740		0x2410
188#define NOVATELWIRELESS_PRODUCT_EU870D		0x2420
189
190/* OVATION PRODUCTS */
191#define NOVATELWIRELESS_PRODUCT_MC727		0x4100
192#define NOVATELWIRELESS_PRODUCT_MC950D		0x4400
193
194/* FUTURE NOVATEL PRODUCTS */
195#define NOVATELWIRELESS_PRODUCT_EVDO_1		0x6000
196#define NOVATELWIRELESS_PRODUCT_HSPA_1		0x7000
197#define NOVATELWIRELESS_PRODUCT_EMBEDDED_1	0x8000
198#define NOVATELWIRELESS_PRODUCT_GLOBAL_1	0x9000
199#define NOVATELWIRELESS_PRODUCT_EVDO_2		0x6001
200#define NOVATELWIRELESS_PRODUCT_HSPA_2		0x7001
201#define NOVATELWIRELESS_PRODUCT_EMBEDDED_2	0x8001
202#define NOVATELWIRELESS_PRODUCT_GLOBAL_2	0x9001
203
204/* AMOI PRODUCTS */
205#define AMOI_VENDOR_ID				0x1614
206#define AMOI_PRODUCT_H01			0x0800
207#define AMOI_PRODUCT_H01A			0x7002
208#define AMOI_PRODUCT_H02			0x0802
209
210#define DELL_VENDOR_ID				0x413C
211
212#define KYOCERA_VENDOR_ID			0x0c88
213#define KYOCERA_PRODUCT_KPC650			0x17da
214#define KYOCERA_PRODUCT_KPC680			0x180a
215
216#define ANYDATA_VENDOR_ID			0x16d5
217#define ANYDATA_PRODUCT_ADU_620UW		0x6202
218#define ANYDATA_PRODUCT_ADU_E100A		0x6501
219#define ANYDATA_PRODUCT_ADU_500A		0x6502
220
221#define AXESSTEL_VENDOR_ID			0x1726
222#define AXESSTEL_PRODUCT_MV110H			0x1000
223
224#define ONDA_VENDOR_ID				0x19d2
225#define ONDA_PRODUCT_MSA501HS			0x0001
226#define ONDA_PRODUCT_ET502HS			0x0002
227#define ONDA_PRODUCT_MT503HS			0x2000
228
229#define BANDRICH_VENDOR_ID			0x1A8D
230#define BANDRICH_PRODUCT_C100_1			0x1002
231#define BANDRICH_PRODUCT_C100_2			0x1003
232#define BANDRICH_PRODUCT_1004			0x1004
233#define BANDRICH_PRODUCT_1005			0x1005
234#define BANDRICH_PRODUCT_1006			0x1006
235#define BANDRICH_PRODUCT_1007			0x1007
236#define BANDRICH_PRODUCT_1008			0x1008
237#define BANDRICH_PRODUCT_1009			0x1009
238#define BANDRICH_PRODUCT_100A			0x100a
239
240#define BANDRICH_PRODUCT_100B			0x100b
241#define BANDRICH_PRODUCT_100C			0x100c
242#define BANDRICH_PRODUCT_100D			0x100d
243#define BANDRICH_PRODUCT_100E			0x100e
244
245#define BANDRICH_PRODUCT_100F			0x100f
246#define BANDRICH_PRODUCT_1010			0x1010
247#define BANDRICH_PRODUCT_1011			0x1011
248#define BANDRICH_PRODUCT_1012			0x1012
249
250#define AMOI_VENDOR_ID			0x1614
251#define AMOI_PRODUCT_9508			0x0800
252
253#define QUALCOMM_VENDOR_ID			0x05C6
254
255#define MAXON_VENDOR_ID				0x16d8
256
257#define TELIT_VENDOR_ID				0x1bc7
258#define TELIT_PRODUCT_UC864E			0x1003
259
260/* ZTE PRODUCTS */
261#define ZTE_VENDOR_ID				0x19d2
262#define ZTE_PRODUCT_MF628			0x0015
263#define ZTE_PRODUCT_MF626			0x0031
264#define ZTE_PRODUCT_CDMA_TECH			0xfffe
265
266/* Ericsson products */
267#define ERICSSON_VENDOR_ID			0x0bdb
268#define ERICSSON_PRODUCT_F3507G			0x1900
269
270/* Pantech products */
271#define PANTECH_VENDOR_ID			0x106c
272#define PANTECH_PRODUCT_PC5740			0x3701
273#define PANTECH_PRODUCT_PC5750			0x3702  /* PX-500 */
274#define PANTECH_PRODUCT_UM150			0x3711
275
276static struct usb_device_id option_ids[] = {
277	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
278	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
279	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
280	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD) },
281	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD_LIGHT) },
282	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS) },
283	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_LIGHT) },
284	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD) },
285	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT) },
286	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
287	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA_BUS) },
288	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER) },
289	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER_BUS) },
290	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX_READY) },
291	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_LIGHT) },
292	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_GT) },
293	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_EX) },
294	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_MODEM) },
295	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_MODEM) },
296	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM) },
297	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_LITE) },
298	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) },
299	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) },
300	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) },
301	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600, 0xff, 0xff, 0xff) },
302	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220, 0xff, 0xff, 0xff) },
303	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS, 0xff, 0xff, 0xff) },
304	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1401, 0xff, 0xff, 0xff) },
305	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1402, 0xff, 0xff, 0xff) },
306	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1403, 0xff, 0xff, 0xff) },
307	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1404, 0xff, 0xff, 0xff) },
308	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1405, 0xff, 0xff, 0xff) },
309	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1406, 0xff, 0xff, 0xff) },
310	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1407, 0xff, 0xff, 0xff) },
311	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1408, 0xff, 0xff, 0xff) },
312	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1409, 0xff, 0xff, 0xff) },
313	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140A, 0xff, 0xff, 0xff) },
314	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140B, 0xff, 0xff, 0xff) },
315	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140C, 0xff, 0xff, 0xff) },
316	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140D, 0xff, 0xff, 0xff) },
317	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140E, 0xff, 0xff, 0xff) },
318	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140F, 0xff, 0xff, 0xff) },
319	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1410, 0xff, 0xff, 0xff) },
320	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1411, 0xff, 0xff, 0xff) },
321	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1412, 0xff, 0xff, 0xff) },
322	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1413, 0xff, 0xff, 0xff) },
323	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1414, 0xff, 0xff, 0xff) },
324	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1415, 0xff, 0xff, 0xff) },
325	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1416, 0xff, 0xff, 0xff) },
326	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1417, 0xff, 0xff, 0xff) },
327	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1418, 0xff, 0xff, 0xff) },
328	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1419, 0xff, 0xff, 0xff) },
329	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141A, 0xff, 0xff, 0xff) },
330	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141B, 0xff, 0xff, 0xff) },
331	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141C, 0xff, 0xff, 0xff) },
332	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141D, 0xff, 0xff, 0xff) },
333	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141E, 0xff, 0xff, 0xff) },
334	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141F, 0xff, 0xff, 0xff) },
335	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1420, 0xff, 0xff, 0xff) },
336	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1421, 0xff, 0xff, 0xff) },
337	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1422, 0xff, 0xff, 0xff) },
338	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1423, 0xff, 0xff, 0xff) },
339	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1424, 0xff, 0xff, 0xff) },
340	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1425, 0xff, 0xff, 0xff) },
341	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1426, 0xff, 0xff, 0xff) },
342	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1427, 0xff, 0xff, 0xff) },
343	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1428, 0xff, 0xff, 0xff) },
344	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1429, 0xff, 0xff, 0xff) },
345	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142A, 0xff, 0xff, 0xff) },
346	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142B, 0xff, 0xff, 0xff) },
347	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142C, 0xff, 0xff, 0xff) },
348	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142D, 0xff, 0xff, 0xff) },
349	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142E, 0xff, 0xff, 0xff) },
350	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142F, 0xff, 0xff, 0xff) },
351	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1430, 0xff, 0xff, 0xff) },
352	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1431, 0xff, 0xff, 0xff) },
353	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1432, 0xff, 0xff, 0xff) },
354	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1433, 0xff, 0xff, 0xff) },
355	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1434, 0xff, 0xff, 0xff) },
356	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1435, 0xff, 0xff, 0xff) },
357	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1436, 0xff, 0xff, 0xff) },
358	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1437, 0xff, 0xff, 0xff) },
359	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1438, 0xff, 0xff, 0xff) },
360	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1439, 0xff, 0xff, 0xff) },
361	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143A, 0xff, 0xff, 0xff) },
362	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143B, 0xff, 0xff, 0xff) },
363	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143C, 0xff, 0xff, 0xff) },
364	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143D, 0xff, 0xff, 0xff) },
365	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143E, 0xff, 0xff, 0xff) },
366	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143F, 0xff, 0xff, 0xff) },
367	{ USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_9508) },
368	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */
369	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */
370	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) }, /* Novatel Merlin EX720/V740/X720 */
371	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V720) }, /* Novatel Merlin V720/S720/PC720 */
372	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U730) }, /* Novatel U730/U740 (VF version) */
373	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U740) }, /* Novatel U740 */
374	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U870) }, /* Novatel U870 */
375	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_XU870) }, /* Novatel Merlin XU870 HSDPA/3G */
376	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_X950D) }, /* Novatel X950D */
377	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EV620) }, /* Novatel EV620/ES620 CDMA/EV-DO */
378	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES720) }, /* Novatel ES620/ES720/U720/USB720 */
379	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E725) }, /* Novatel E725/E726 */
380	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES620) }, /* Novatel Merlin ES620 SM Bus */
381	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU730) }, /* Novatel EU730 and Vodafone EU740 */
382	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU740) }, /* Novatel non-Vodafone EU740 */
383	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) }, /* Novatel EU850D/EU860D/EU870D */
384	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) }, /* Novatel MC930D/MC950D */
385	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) }, /* Novatel MC727/U727/USB727 */
386	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_1) }, /* Novatel EVDO product */
387	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_1) }, /* Novatel HSPA product */
388	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_1) }, /* Novatel Embedded product */
389	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_1) }, /* Novatel Global product */
390	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_2) }, /* Novatel EVDO product */
391	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_2) }, /* Novatel HSPA product */
392	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_2) }, /* Novatel Embedded product */
393	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_2) }, /* Novatel Global product */
394
395	{ USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01) },
396	{ USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01A) },
397	{ USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H02) },
398
399	{ USB_DEVICE(DELL_VENDOR_ID, 0x8114) },	/* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */
400	{ USB_DEVICE(DELL_VENDOR_ID, 0x8115) },	/* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
401	{ USB_DEVICE(DELL_VENDOR_ID, 0x8116) },	/* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
402	{ USB_DEVICE(DELL_VENDOR_ID, 0x8117) },	/* Dell Wireless 5700 Mobile Broadband CDMA/EVDO ExpressCard == Novatel Merlin XV620 CDMA/EV-DO */
403	{ USB_DEVICE(DELL_VENDOR_ID, 0x8118) },	/* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard == Novatel Merlin XU870 HSDPA/3G */
404	{ USB_DEVICE(DELL_VENDOR_ID, 0x8128) },	/* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite E720 CDMA/EV-DO */
405	{ USB_DEVICE(DELL_VENDOR_ID, 0x8129) },	/* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite ET620 CDMA/EV-DO */
406	{ USB_DEVICE(DELL_VENDOR_ID, 0x8133) }, /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
407	{ USB_DEVICE(DELL_VENDOR_ID, 0x8136) },	/* Dell Wireless HSDPA 5520 == Novatel Expedite EU860D */
408	{ USB_DEVICE(DELL_VENDOR_ID, 0x8137) },	/* Dell Wireless HSDPA 5520 */
409	{ USB_DEVICE(DELL_VENDOR_ID, 0x8138) },	/* Dell Wireless 5520 Voda I Mobile Broadband (3G HSDPA) Minicard */
410	{ USB_DEVICE(DELL_VENDOR_ID, 0x8147) },	/* Dell Wireless 5530 Mobile Broadband (3G HSPA) Mini-Card */
411	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },	/* ADU-E100, ADU-310 */
412	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
413	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
414	{ USB_DEVICE(AXESSTEL_VENDOR_ID, AXESSTEL_PRODUCT_MV110H) },
415	{ USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_MSA501HS) },
416	{ USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_ET502HS) },
417	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0003) },
418	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0004) },
419	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0005) },
420	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0006) },
421	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0007) },
422	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0008) },
423	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0009) },
424	{ USB_DEVICE(ONDA_VENDOR_ID, 0x000a) },
425	{ USB_DEVICE(ONDA_VENDOR_ID, 0x000b) },
426	{ USB_DEVICE(ONDA_VENDOR_ID, 0x000c) },
427	{ USB_DEVICE(ONDA_VENDOR_ID, 0x000d) },
428	{ USB_DEVICE(ONDA_VENDOR_ID, 0x000e) },
429	{ USB_DEVICE(ONDA_VENDOR_ID, 0x000f) },
430	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0010) },
431	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0011) },
432	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0012) },
433	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0013) },
434	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0014) },
435	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0015) },
436	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0016) },
437	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0017) },
438	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0018) },
439	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0019) },
440	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0020) },
441	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0021) },
442	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0022) },
443	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0023) },
444	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0024) },
445	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0025) },
446	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0026) },
447	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0027) },
448	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0028) },
449	{ USB_DEVICE(ONDA_VENDOR_ID, 0x0029) },
450	{ USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_MT503HS) },
451	{ USB_DEVICE(YISO_VENDOR_ID, YISO_PRODUCT_U893) },
452	{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
453	{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
454	{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1004) },
455	{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1005) },
456	{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1006) },
457	{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1007) },
458	{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1008) },
459	{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1009) },
460	{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100A) },
461	{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100B) },
462	{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100C) },
463	{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100D) },
464	{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100E) },
465	{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100F) },
466	{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1010) },
467	{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1011) },
468	{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1012) },
469	{ USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC650) },
470	{ USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
471	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */
472	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
473	{ USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */
474	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864E) },
475	{ USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF626) },
476	{ USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF628) },
477	{ USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH) },
478	{ USB_DEVICE(ERICSSON_VENDOR_ID, ERICSSON_PRODUCT_F3507G) },
479	{ USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_PC5740) },
480	{ USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_PC5750) },
481	{ USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_UM150) },
482	{ } /* Terminating entry */
483};
484MODULE_DEVICE_TABLE(usb, option_ids);
485
486static struct usb_driver option_driver = {
487	.name       = "option",
488	.probe      = usb_serial_probe,
489	.disconnect = usb_serial_disconnect,
490	.id_table   = option_ids,
491	.no_dynamic_id = 	1,
492};
493
494/* The card has three separate interfaces, which the serial driver
495 * recognizes separately, thus num_port=1.
496 */
497
498static struct usb_serial_driver option_1port_device = {
499	.driver = {
500		.owner =	THIS_MODULE,
501		.name =		"option1",
502	},
503	.description       = "GSM modem (1-port)",
504	.usb_driver        = &option_driver,
505	.id_table          = option_ids,
506	.num_ports         = 1,
507	.open              = option_open,
508	.close             = option_close,
509	.write             = option_write,
510	.write_room        = option_write_room,
511	.chars_in_buffer   = option_chars_in_buffer,
512	.set_termios       = option_set_termios,
513	.tiocmget          = option_tiocmget,
514	.tiocmset          = option_tiocmset,
515	.attach            = option_startup,
516	.shutdown          = option_shutdown,
517	.read_int_callback = option_instat_callback,
518};
519
520static int debug;
521
522/* per port private data */
523
524#define N_IN_URB 4
525#define N_OUT_URB 4
526#define IN_BUFLEN 4096
527#define OUT_BUFLEN 4096
528
529struct option_port_private {
530	/* Input endpoints and buffer for this port */
531	struct urb *in_urbs[N_IN_URB];
532	u8 *in_buffer[N_IN_URB];
533	/* Output endpoints and buffer for this port */
534	struct urb *out_urbs[N_OUT_URB];
535	u8 *out_buffer[N_OUT_URB];
536	unsigned long out_busy;		/* Bit vector of URBs in use */
537
538	/* Settings for the port */
539	int rts_state;	/* Handshaking pins (outputs) */
540	int dtr_state;
541	int cts_state;	/* Handshaking pins (inputs) */
542	int dsr_state;
543	int dcd_state;
544	int ri_state;
545
546	unsigned long tx_start_time[N_OUT_URB];
547};
548
549/* Functions used by new usb-serial code. */
550static int __init option_init(void)
551{
552	int retval;
553	retval = usb_serial_register(&option_1port_device);
554	if (retval)
555		goto failed_1port_device_register;
556	retval = usb_register(&option_driver);
557	if (retval)
558		goto failed_driver_register;
559
560	printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
561	       DRIVER_DESC "\n");
562
563	return 0;
564
565failed_driver_register:
566	usb_serial_deregister(&option_1port_device);
567failed_1port_device_register:
568	return retval;
569}
570
571static void __exit option_exit(void)
572{
573	usb_deregister(&option_driver);
574	usb_serial_deregister(&option_1port_device);
575}
576
577module_init(option_init);
578module_exit(option_exit);
579
580static void option_set_termios(struct tty_struct *tty,
581		struct usb_serial_port *port, struct ktermios *old_termios)
582{
583	dbg("%s", __func__);
584	/* Doesn't support option setting */
585	tty_termios_copy_hw(tty->termios, old_termios);
586	option_send_setup(tty, port);
587}
588
589static int option_tiocmget(struct tty_struct *tty, struct file *file)
590{
591	struct usb_serial_port *port = tty->driver_data;
592	unsigned int value;
593	struct option_port_private *portdata;
594
595	portdata = usb_get_serial_port_data(port);
596
597	value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
598		((portdata->dtr_state) ? TIOCM_DTR : 0) |
599		((portdata->cts_state) ? TIOCM_CTS : 0) |
600		((portdata->dsr_state) ? TIOCM_DSR : 0) |
601		((portdata->dcd_state) ? TIOCM_CAR : 0) |
602		((portdata->ri_state) ? TIOCM_RNG : 0);
603
604	return value;
605}
606
607static int option_tiocmset(struct tty_struct *tty, struct file *file,
608			unsigned int set, unsigned int clear)
609{
610	struct usb_serial_port *port = tty->driver_data;
611	struct option_port_private *portdata;
612
613	portdata = usb_get_serial_port_data(port);
614
615	/* FIXME: what locks portdata fields ? */
616	if (set & TIOCM_RTS)
617		portdata->rts_state = 1;
618	if (set & TIOCM_DTR)
619		portdata->dtr_state = 1;
620
621	if (clear & TIOCM_RTS)
622		portdata->rts_state = 0;
623	if (clear & TIOCM_DTR)
624		portdata->dtr_state = 0;
625	return option_send_setup(tty, port);
626}
627
628/* Write */
629static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
630			const unsigned char *buf, int count)
631{
632	struct option_port_private *portdata;
633	int i;
634	int left, todo;
635	struct urb *this_urb = NULL; /* spurious */
636	int err;
637
638	portdata = usb_get_serial_port_data(port);
639
640	dbg("%s: write (%d chars)", __func__, count);
641
642	i = 0;
643	left = count;
644	for (i = 0; left > 0 && i < N_OUT_URB; i++) {
645		todo = left;
646		if (todo > OUT_BUFLEN)
647			todo = OUT_BUFLEN;
648
649		this_urb = portdata->out_urbs[i];
650		if (test_and_set_bit(i, &portdata->out_busy)) {
651			if (time_before(jiffies,
652					portdata->tx_start_time[i] + 10 * HZ))
653				continue;
654			usb_unlink_urb(this_urb);
655			continue;
656		}
657		dbg("%s: endpoint %d buf %d", __func__,
658			usb_pipeendpoint(this_urb->pipe), i);
659
660		/* send the data */
661		memcpy(this_urb->transfer_buffer, buf, todo);
662		this_urb->transfer_buffer_length = todo;
663
664		this_urb->dev = port->serial->dev;
665		err = usb_submit_urb(this_urb, GFP_ATOMIC);
666		if (err) {
667			dbg("usb_submit_urb %p (write bulk) failed "
668				"(%d)", this_urb, err);
669			clear_bit(i, &portdata->out_busy);
670			continue;
671		}
672		portdata->tx_start_time[i] = jiffies;
673		buf += todo;
674		left -= todo;
675	}
676
677	count -= left;
678	dbg("%s: wrote (did %d)", __func__, count);
679	return count;
680}
681
682static void option_indat_callback(struct urb *urb)
683{
684	int err;
685	int endpoint;
686	struct usb_serial_port *port;
687	struct tty_struct *tty;
688	unsigned char *data = urb->transfer_buffer;
689	int status = urb->status;
690
691	dbg("%s: %p", __func__, urb);
692
693	endpoint = usb_pipeendpoint(urb->pipe);
694	port =  urb->context;
695
696	if (status) {
697		dbg("%s: nonzero status: %d on endpoint %02x.",
698		    __func__, status, endpoint);
699	} else {
700		tty = tty_port_tty_get(&port->port);
701		if (urb->actual_length) {
702			tty_buffer_request_room(tty, urb->actual_length);
703			tty_insert_flip_string(tty, data, urb->actual_length);
704			tty_flip_buffer_push(tty);
705		} else
706			dbg("%s: empty read urb received", __func__);
707		tty_kref_put(tty);
708
709		/* Resubmit urb so we continue receiving */
710		if (port->port.count && status != -ESHUTDOWN) {
711			err = usb_submit_urb(urb, GFP_ATOMIC);
712			if (err)
713				printk(KERN_ERR "%s: resubmit read urb failed. "
714					"(%d)", __func__, err);
715		}
716	}
717	return;
718}
719
720static void option_outdat_callback(struct urb *urb)
721{
722	struct usb_serial_port *port;
723	struct option_port_private *portdata;
724	int i;
725
726	dbg("%s", __func__);
727
728	port =  urb->context;
729
730	usb_serial_port_softint(port);
731
732	portdata = usb_get_serial_port_data(port);
733	for (i = 0; i < N_OUT_URB; ++i) {
734		if (portdata->out_urbs[i] == urb) {
735			smp_mb__before_clear_bit();
736			clear_bit(i, &portdata->out_busy);
737			break;
738		}
739	}
740}
741
742static void option_instat_callback(struct urb *urb)
743{
744	int err;
745	int status = urb->status;
746	struct usb_serial_port *port =  urb->context;
747	struct option_port_private *portdata = usb_get_serial_port_data(port);
748	struct usb_serial *serial = port->serial;
749
750	dbg("%s", __func__);
751	dbg("%s: urb %p port %p has data %p", __func__, urb, port, portdata);
752
753	if (status == 0) {
754		struct usb_ctrlrequest *req_pkt =
755				(struct usb_ctrlrequest *)urb->transfer_buffer;
756
757		if (!req_pkt) {
758			dbg("%s: NULL req_pkt\n", __func__);
759			return;
760		}
761		if ((req_pkt->bRequestType == 0xA1) &&
762				(req_pkt->bRequest == 0x20)) {
763			int old_dcd_state;
764			unsigned char signals = *((unsigned char *)
765					urb->transfer_buffer +
766					sizeof(struct usb_ctrlrequest));
767
768			dbg("%s: signal x%x", __func__, signals);
769
770			old_dcd_state = portdata->dcd_state;
771			portdata->cts_state = 1;
772			portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
773			portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
774			portdata->ri_state = ((signals & 0x08) ? 1 : 0);
775
776			if (old_dcd_state && !portdata->dcd_state) {
777				struct tty_struct *tty =
778						tty_port_tty_get(&port->port);
779				if (tty && !C_CLOCAL(tty))
780					tty_hangup(tty);
781				tty_kref_put(tty);
782			}
783		} else {
784			dbg("%s: type %x req %x", __func__,
785				req_pkt->bRequestType, req_pkt->bRequest);
786		}
787	} else
788		dbg("%s: error %d", __func__, status);
789
790	/* Resubmit urb so we continue receiving IRQ data */
791	if (status != -ESHUTDOWN) {
792		urb->dev = serial->dev;
793		err = usb_submit_urb(urb, GFP_ATOMIC);
794		if (err)
795			dbg("%s: resubmit intr urb failed. (%d)",
796				__func__, err);
797	}
798}
799
800static int option_write_room(struct tty_struct *tty)
801{
802	struct usb_serial_port *port = tty->driver_data;
803	struct option_port_private *portdata;
804	int i;
805	int data_len = 0;
806	struct urb *this_urb;
807
808	portdata = usb_get_serial_port_data(port);
809
810
811	for (i = 0; i < N_OUT_URB; i++) {
812		this_urb = portdata->out_urbs[i];
813		if (this_urb && !test_bit(i, &portdata->out_busy))
814			data_len += OUT_BUFLEN;
815	}
816
817	dbg("%s: %d", __func__, data_len);
818	return data_len;
819}
820
821static int option_chars_in_buffer(struct tty_struct *tty)
822{
823	struct usb_serial_port *port = tty->driver_data;
824	struct option_port_private *portdata;
825	int i;
826	int data_len = 0;
827	struct urb *this_urb;
828
829	portdata = usb_get_serial_port_data(port);
830
831	for (i = 0; i < N_OUT_URB; i++) {
832		this_urb = portdata->out_urbs[i];
833		/* FIXME: This locking is insufficient as this_urb may
834		   go unused during the test */
835		if (this_urb && test_bit(i, &portdata->out_busy))
836			data_len += this_urb->transfer_buffer_length;
837	}
838	dbg("%s: %d", __func__, data_len);
839	return data_len;
840}
841
842static int option_open(struct tty_struct *tty,
843			struct usb_serial_port *port, struct file *filp)
844{
845	struct option_port_private *portdata;
846	struct usb_serial *serial = port->serial;
847	int i, err;
848	struct urb *urb;
849
850	portdata = usb_get_serial_port_data(port);
851
852	dbg("%s", __func__);
853
854	/* Set some sane defaults */
855	portdata->rts_state = 1;
856	portdata->dtr_state = 1;
857
858	/* Reset low level data toggle and start reading from endpoints */
859	for (i = 0; i < N_IN_URB; i++) {
860		urb = portdata->in_urbs[i];
861		if (!urb)
862			continue;
863		if (urb->dev != serial->dev) {
864			dbg("%s: dev %p != %p", __func__,
865				urb->dev, serial->dev);
866			continue;
867		}
868
869		/*
870		 * make sure endpoint data toggle is synchronized with the
871		 * device
872		 */
873		usb_clear_halt(urb->dev, urb->pipe);
874
875		err = usb_submit_urb(urb, GFP_KERNEL);
876		if (err) {
877			dbg("%s: submit urb %d failed (%d) %d",
878				__func__, i, err,
879				urb->transfer_buffer_length);
880		}
881	}
882
883	/* Reset low level data toggle on out endpoints */
884	for (i = 0; i < N_OUT_URB; i++) {
885		urb = portdata->out_urbs[i];
886		if (!urb)
887			continue;
888		urb->dev = serial->dev;
889		/* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
890				usb_pipeout(urb->pipe), 0); */
891	}
892
893	if (tty)
894		tty->low_latency = 1;
895
896	option_send_setup(tty, port);
897
898	return 0;
899}
900
901static void option_close(struct tty_struct *tty,
902			struct usb_serial_port *port, struct file *filp)
903{
904	int i;
905	struct usb_serial *serial = port->serial;
906	struct option_port_private *portdata;
907
908	dbg("%s", __func__);
909	portdata = usb_get_serial_port_data(port);
910
911	portdata->rts_state = 0;
912	portdata->dtr_state = 0;
913
914	if (serial->dev) {
915		mutex_lock(&serial->disc_mutex);
916		if (!serial->disconnected)
917			option_send_setup(tty, port);
918		mutex_unlock(&serial->disc_mutex);
919
920		/* Stop reading/writing urbs */
921		for (i = 0; i < N_IN_URB; i++)
922			usb_kill_urb(portdata->in_urbs[i]);
923		for (i = 0; i < N_OUT_URB; i++)
924			usb_kill_urb(portdata->out_urbs[i]);
925	}
926	tty_port_tty_set(&port->port, NULL);
927}
928
929/* Helper functions used by option_setup_urbs */
930static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
931		int dir, void *ctx, char *buf, int len,
932		void (*callback)(struct urb *))
933{
934	struct urb *urb;
935
936	if (endpoint == -1)
937		return NULL;		/* endpoint not needed */
938
939	urb = usb_alloc_urb(0, GFP_KERNEL);		/* No ISO */
940	if (urb == NULL) {
941		dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
942		return NULL;
943	}
944
945		/* Fill URB using supplied data. */
946	usb_fill_bulk_urb(urb, serial->dev,
947		      usb_sndbulkpipe(serial->dev, endpoint) | dir,
948		      buf, len, callback, ctx);
949
950	return urb;
951}
952
953/* Setup urbs */
954static void option_setup_urbs(struct usb_serial *serial)
955{
956	int i, j;
957	struct usb_serial_port *port;
958	struct option_port_private *portdata;
959
960	dbg("%s", __func__);
961
962	for (i = 0; i < serial->num_ports; i++) {
963		port = serial->port[i];
964		portdata = usb_get_serial_port_data(port);
965
966		/* Do indat endpoints first */
967		for (j = 0; j < N_IN_URB; ++j) {
968			portdata->in_urbs[j] = option_setup_urb(serial,
969					port->bulk_in_endpointAddress,
970					USB_DIR_IN, port,
971					portdata->in_buffer[j],
972					IN_BUFLEN, option_indat_callback);
973		}
974
975		/* outdat endpoints */
976		for (j = 0; j < N_OUT_URB; ++j) {
977			portdata->out_urbs[j] = option_setup_urb(serial,
978					port->bulk_out_endpointAddress,
979					USB_DIR_OUT, port,
980					portdata->out_buffer[j],
981					OUT_BUFLEN, option_outdat_callback);
982		}
983	}
984}
985
986
987/** send RTS/DTR state to the port.
988 *
989 * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
990 * CDC.
991*/
992static int option_send_setup(struct tty_struct *tty,
993						struct usb_serial_port *port)
994{
995	struct usb_serial *serial = port->serial;
996	struct option_port_private *portdata;
997	int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
998	dbg("%s", __func__);
999
1000	portdata = usb_get_serial_port_data(port);
1001
1002	if (tty) {
1003		int val = 0;
1004		if (portdata->dtr_state)
1005			val |= 0x01;
1006		if (portdata->rts_state)
1007			val |= 0x02;
1008
1009		return usb_control_msg(serial->dev,
1010			usb_rcvctrlpipe(serial->dev, 0),
1011			0x22, 0x21, val, ifNum, NULL, 0, USB_CTRL_SET_TIMEOUT);
1012	}
1013	return 0;
1014}
1015
1016static int option_startup(struct usb_serial *serial)
1017{
1018	int i, j, err;
1019	struct usb_serial_port *port;
1020	struct option_port_private *portdata;
1021	u8 *buffer;
1022
1023	dbg("%s", __func__);
1024
1025	/* Now setup per port private data */
1026	for (i = 0; i < serial->num_ports; i++) {
1027		port = serial->port[i];
1028		portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
1029		if (!portdata) {
1030			dbg("%s: kmalloc for option_port_private (%d) failed!.",
1031					__func__, i);
1032			return 1;
1033		}
1034
1035		for (j = 0; j < N_IN_URB; j++) {
1036			buffer = (u8 *)__get_free_page(GFP_KERNEL);
1037			if (!buffer)
1038				goto bail_out_error;
1039			portdata->in_buffer[j] = buffer;
1040		}
1041
1042		for (j = 0; j < N_OUT_URB; j++) {
1043			buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
1044			if (!buffer)
1045				goto bail_out_error2;
1046			portdata->out_buffer[j] = buffer;
1047		}
1048
1049		usb_set_serial_port_data(port, portdata);
1050
1051		if (!port->interrupt_in_urb)
1052			continue;
1053		err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
1054		if (err)
1055			dbg("%s: submit irq_in urb failed %d",
1056				__func__, err);
1057	}
1058	option_setup_urbs(serial);
1059	return 0;
1060
1061bail_out_error2:
1062	for (j = 0; j < N_OUT_URB; j++)
1063		kfree(portdata->out_buffer[j]);
1064bail_out_error:
1065	for (j = 0; j < N_IN_URB; j++)
1066		if (portdata->in_buffer[j])
1067			free_page((unsigned long)portdata->in_buffer[j]);
1068	kfree(portdata);
1069	return 1;
1070}
1071
1072static void option_shutdown(struct usb_serial *serial)
1073{
1074	int i, j;
1075	struct usb_serial_port *port;
1076	struct option_port_private *portdata;
1077
1078	dbg("%s", __func__);
1079
1080	/* Stop reading/writing urbs */
1081	for (i = 0; i < serial->num_ports; ++i) {
1082		port = serial->port[i];
1083		portdata = usb_get_serial_port_data(port);
1084		for (j = 0; j < N_IN_URB; j++)
1085			usb_kill_urb(portdata->in_urbs[j]);
1086		for (j = 0; j < N_OUT_URB; j++)
1087			usb_kill_urb(portdata->out_urbs[j]);
1088	}
1089
1090	/* Now free them */
1091	for (i = 0; i < serial->num_ports; ++i) {
1092		port = serial->port[i];
1093		portdata = usb_get_serial_port_data(port);
1094
1095		for (j = 0; j < N_IN_URB; j++) {
1096			if (portdata->in_urbs[j]) {
1097				usb_free_urb(portdata->in_urbs[j]);
1098				free_page((unsigned long)
1099					portdata->in_buffer[j]);
1100				portdata->in_urbs[j] = NULL;
1101			}
1102		}
1103		for (j = 0; j < N_OUT_URB; j++) {
1104			if (portdata->out_urbs[j]) {
1105				usb_free_urb(portdata->out_urbs[j]);
1106				kfree(portdata->out_buffer[j]);
1107				portdata->out_urbs[j] = NULL;
1108			}
1109		}
1110	}
1111
1112	/* Now free per port private data */
1113	for (i = 0; i < serial->num_ports; i++) {
1114		port = serial->port[i];
1115		kfree(usb_get_serial_port_data(port));
1116	}
1117}
1118
1119MODULE_AUTHOR(DRIVER_AUTHOR);
1120MODULE_DESCRIPTION(DRIVER_DESC);
1121MODULE_VERSION(DRIVER_VERSION);
1122MODULE_LICENSE("GPL");
1123
1124module_param(debug, bool, S_IRUGO | S_IWUSR);
1125MODULE_PARM_DESC(debug, "Debug messages");
1126