Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 into lvs-next-2.6
[linux-2.6] / drivers / usb / serial / option.c
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 */
46 static int  option_open(struct tty_struct *tty, struct usb_serial_port *port,
47                                                         struct file *filp);
48 static void option_close(struct tty_struct *tty, struct usb_serial_port *port,
49                                                         struct file *filp);
50 static int  option_startup(struct usb_serial *serial);
51 static void option_shutdown(struct usb_serial *serial);
52 static int  option_write_room(struct tty_struct *tty);
53
54 static void option_instat_callback(struct urb *urb);
55
56 static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
57                         const unsigned char *buf, int count);
58 static int  option_chars_in_buffer(struct tty_struct *tty);
59 static void option_set_termios(struct tty_struct *tty,
60                         struct usb_serial_port *port, struct ktermios *old);
61 static int  option_tiocmget(struct tty_struct *tty, struct file *file);
62 static int  option_tiocmset(struct tty_struct *tty, struct file *file,
63                                 unsigned int set, unsigned int clear);
64 static 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_GT_MAX                   0x6711
83 #define OPTION_PRODUCT_FUJI_MODEM_LIGHT         0x6721
84 #define OPTION_PRODUCT_FUJI_MODEM_GT            0x6741
85 #define OPTION_PRODUCT_FUJI_MODEM_EX            0x6761
86 #define OPTION_PRODUCT_FUJI_NETWORK_LIGHT       0x6731
87 #define OPTION_PRODUCT_FUJI_NETWORK_GT          0x6751
88 #define OPTION_PRODUCT_FUJI_NETWORK_EX          0x6771
89 #define OPTION_PRODUCT_KOI_MODEM                0x6800
90 #define OPTION_PRODUCT_KOI_NETWORK              0x6811
91 #define OPTION_PRODUCT_SCORPION_MODEM           0x6901
92 #define OPTION_PRODUCT_SCORPION_NETWORK         0x6911
93 #define OPTION_PRODUCT_ETNA_MODEM               0x7001
94 #define OPTION_PRODUCT_ETNA_NETWORK             0x7011
95 #define OPTION_PRODUCT_ETNA_MODEM_LITE          0x7021
96 #define OPTION_PRODUCT_ETNA_MODEM_GT            0x7041
97 #define OPTION_PRODUCT_ETNA_MODEM_EX            0x7061
98 #define OPTION_PRODUCT_ETNA_NETWORK_LITE        0x7031
99 #define OPTION_PRODUCT_ETNA_NETWORK_GT          0x7051
100 #define OPTION_PRODUCT_ETNA_NETWORK_EX          0x7071
101 #define OPTION_PRODUCT_ETNA_KOI_MODEM           0x7100
102 #define OPTION_PRODUCT_ETNA_KOI_NETWORK         0x7111
103
104 #define HUAWEI_VENDOR_ID                        0x12D1
105 #define HUAWEI_PRODUCT_E600                     0x1001
106 #define HUAWEI_PRODUCT_E220                     0x1003
107 #define HUAWEI_PRODUCT_E220BIS                  0x1004
108 #define HUAWEI_PRODUCT_E1401                    0x1401
109 #define HUAWEI_PRODUCT_E1403                    0x1403
110 #define HUAWEI_PRODUCT_E1405                    0x1405
111 #define HUAWEI_PRODUCT_E1406                    0x1406
112 #define HUAWEI_PRODUCT_E1408                    0x1408
113 #define HUAWEI_PRODUCT_E1409                    0x1409
114 #define HUAWEI_PRODUCT_E1410                    0x1410
115 #define HUAWEI_PRODUCT_E1411                    0x1411
116 #define HUAWEI_PRODUCT_E1412                    0x1412
117 #define HUAWEI_PRODUCT_E1413                    0x1413
118 #define HUAWEI_PRODUCT_E1414                    0x1414
119 #define HUAWEI_PRODUCT_E1415                    0x1415
120 #define HUAWEI_PRODUCT_E1416                    0x1416
121 #define HUAWEI_PRODUCT_E1417                    0x1417
122 #define HUAWEI_PRODUCT_E1418                    0x1418
123 #define HUAWEI_PRODUCT_E1419                    0x1419
124
125 #define NOVATELWIRELESS_VENDOR_ID               0x1410
126
127 /* MERLIN EVDO PRODUCTS */
128 #define NOVATELWIRELESS_PRODUCT_V640            0x1100
129 #define NOVATELWIRELESS_PRODUCT_V620            0x1110
130 #define NOVATELWIRELESS_PRODUCT_V740            0x1120
131 #define NOVATELWIRELESS_PRODUCT_V720            0x1130
132
133 /* MERLIN HSDPA/HSPA PRODUCTS */
134 #define NOVATELWIRELESS_PRODUCT_U730            0x1400
135 #define NOVATELWIRELESS_PRODUCT_U740            0x1410
136 #define NOVATELWIRELESS_PRODUCT_U870            0x1420
137 #define NOVATELWIRELESS_PRODUCT_XU870           0x1430
138 #define NOVATELWIRELESS_PRODUCT_X950D           0x1450
139
140 /* EXPEDITE PRODUCTS */
141 #define NOVATELWIRELESS_PRODUCT_EV620           0x2100
142 #define NOVATELWIRELESS_PRODUCT_ES720           0x2110
143 #define NOVATELWIRELESS_PRODUCT_E725            0x2120
144 #define NOVATELWIRELESS_PRODUCT_ES620           0x2130
145 #define NOVATELWIRELESS_PRODUCT_EU730           0x2400
146 #define NOVATELWIRELESS_PRODUCT_EU740           0x2410
147 #define NOVATELWIRELESS_PRODUCT_EU870D          0x2420
148
149 /* OVATION PRODUCTS */
150 #define NOVATELWIRELESS_PRODUCT_MC727           0x4100
151 #define NOVATELWIRELESS_PRODUCT_MC950D          0x4400
152
153 /* FUTURE NOVATEL PRODUCTS */
154 #define NOVATELWIRELESS_PRODUCT_EVDO_1          0x6000
155 #define NOVATELWIRELESS_PRODUCT_HSPA_1          0x7000
156 #define NOVATELWIRELESS_PRODUCT_EMBEDDED_1      0x8000
157 #define NOVATELWIRELESS_PRODUCT_GLOBAL_1        0x9000
158 #define NOVATELWIRELESS_PRODUCT_EVDO_2          0x6001
159 #define NOVATELWIRELESS_PRODUCT_HSPA_2          0x7001
160 #define NOVATELWIRELESS_PRODUCT_EMBEDDED_2      0x8001
161 #define NOVATELWIRELESS_PRODUCT_GLOBAL_2        0x9001
162
163 /* AMOI PRODUCTS */
164 #define AMOI_VENDOR_ID                          0x1614
165 #define AMOI_PRODUCT_H01                        0x0800
166 #define AMOI_PRODUCT_H01A                       0x7002
167 #define AMOI_PRODUCT_H02                        0x0802
168
169 #define DELL_VENDOR_ID                          0x413C
170
171 #define KYOCERA_VENDOR_ID                       0x0c88
172 #define KYOCERA_PRODUCT_KPC650                  0x17da
173 #define KYOCERA_PRODUCT_KPC680                  0x180a
174
175 #define ANYDATA_VENDOR_ID                       0x16d5
176 #define ANYDATA_PRODUCT_ADU_620UW               0x6202
177 #define ANYDATA_PRODUCT_ADU_E100A               0x6501
178 #define ANYDATA_PRODUCT_ADU_500A                0x6502
179
180 #define AXESSTEL_VENDOR_ID                      0x1726
181 #define AXESSTEL_PRODUCT_MV110H                 0x1000
182
183 #define ONDA_VENDOR_ID                          0x19d2
184 #define ONDA_PRODUCT_MSA501HS                   0x0001
185 #define ONDA_PRODUCT_ET502HS                    0x0002
186
187 #define BANDRICH_VENDOR_ID                      0x1A8D
188 #define BANDRICH_PRODUCT_C100_1                 0x1002
189 #define BANDRICH_PRODUCT_C100_2                 0x1003
190 #define BANDRICH_PRODUCT_1004                   0x1004
191 #define BANDRICH_PRODUCT_1005                   0x1005
192 #define BANDRICH_PRODUCT_1006                   0x1006
193 #define BANDRICH_PRODUCT_1007                   0x1007
194 #define BANDRICH_PRODUCT_1008                   0x1008
195 #define BANDRICH_PRODUCT_1009                   0x1009
196 #define BANDRICH_PRODUCT_100A                   0x100a
197
198 #define BANDRICH_PRODUCT_100B                   0x100b
199 #define BANDRICH_PRODUCT_100C                   0x100c
200 #define BANDRICH_PRODUCT_100D                   0x100d
201 #define BANDRICH_PRODUCT_100E                   0x100e
202
203 #define BANDRICH_PRODUCT_100F                   0x100f
204 #define BANDRICH_PRODUCT_1010                   0x1010
205 #define BANDRICH_PRODUCT_1011                   0x1011
206 #define BANDRICH_PRODUCT_1012                   0x1012
207
208 #define AMOI_VENDOR_ID                  0x1614
209 #define AMOI_PRODUCT_9508                       0x0800
210
211 #define QUALCOMM_VENDOR_ID                      0x05C6
212
213 #define MAXON_VENDOR_ID                         0x16d8
214
215 #define TELIT_VENDOR_ID                         0x1bc7
216 #define TELIT_PRODUCT_UC864E                    0x1003
217
218 /* ZTE PRODUCTS */
219 #define ZTE_VENDOR_ID                           0x19d2
220 #define ZTE_PRODUCT_MF628                       0x0015
221 #define ZTE_PRODUCT_CDMA_TECH                   0xfffe
222
223 static struct usb_device_id option_ids[] = {
224         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
225         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
226         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
227         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD) },
228         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD_LIGHT) },
229         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS) },
230         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_LIGHT) },
231         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD) },
232         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT) },
233         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
234         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA_BUS) },
235         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER) },
236         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER_BUS) },
237         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX_READY) },
238         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX) },
239         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_LIGHT) },
240         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_GT) },
241         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_EX) },
242         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_LIGHT) },
243         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_GT) },
244         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_EX) },
245         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_MODEM) },
246         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_NETWORK) },
247         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_MODEM) },
248         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_NETWORK) },
249         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM) },
250         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK) },
251         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_LITE) },
252         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) },
253         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) },
254         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_LITE) },
255         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_GT) },
256         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_EX) },
257         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) },
258         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_NETWORK) },
259         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600, 0xff, 0xff, 0xff) },
260         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220, 0xff, 0xff, 0xff) },
261         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS, 0xff, 0xff, 0xff) },
262         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1401, 0xff, 0xff, 0xff) },
263         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1403, 0xff, 0xff, 0xff) },
264         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1405, 0xff, 0xff, 0xff) },
265         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1406, 0xff, 0xff, 0xff) },
266         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1408, 0xff, 0xff, 0xff) },
267         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1409, 0xff, 0xff, 0xff) },
268         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1410, 0xff, 0xff, 0xff) },
269         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1411, 0xff, 0xff, 0xff) },
270         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1412, 0xff, 0xff, 0xff) },
271         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1413, 0xff, 0xff, 0xff) },
272         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1414, 0xff, 0xff, 0xff) },
273         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1415, 0xff, 0xff, 0xff) },
274         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1416, 0xff, 0xff, 0xff) },
275         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1417, 0xff, 0xff, 0xff) },
276         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1418, 0xff, 0xff, 0xff) },
277         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1419, 0xff, 0xff, 0xff) },
278         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_9508) },
279         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */
280         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */
281         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) }, /* Novatel Merlin EX720/V740/X720 */
282         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V720) }, /* Novatel Merlin V720/S720/PC720 */
283         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U730) }, /* Novatel U730/U740 (VF version) */
284         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U740) }, /* Novatel U740 */
285         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U870) }, /* Novatel U870 */
286         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_XU870) }, /* Novatel Merlin XU870 HSDPA/3G */
287         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_X950D) }, /* Novatel X950D */
288         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EV620) }, /* Novatel EV620/ES620 CDMA/EV-DO */
289         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES720) }, /* Novatel ES620/ES720/U720/USB720 */
290         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E725) }, /* Novatel E725/E726 */
291         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES620) }, /* Novatel Merlin ES620 SM Bus */
292         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU730) }, /* Novatel EU730 and Vodafone EU740 */
293         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU740) }, /* Novatel non-Vodafone EU740 */
294         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) }, /* Novatel EU850D/EU860D/EU870D */
295         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) }, /* Novatel MC930D/MC950D */
296         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) }, /* Novatel MC727/U727/USB727 */
297         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_1) }, /* Novatel EVDO product */
298         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_1) }, /* Novatel HSPA product */
299         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_1) }, /* Novatel Embedded product */
300         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_1) }, /* Novatel Global product */
301         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_2) }, /* Novatel EVDO product */
302         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_2) }, /* Novatel HSPA product */
303         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_2) }, /* Novatel Embedded product */
304         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_2) }, /* Novatel Global product */
305
306         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01) },
307         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01A) },
308         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H02) },
309
310         { USB_DEVICE(DELL_VENDOR_ID, 0x8114) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */
311         { USB_DEVICE(DELL_VENDOR_ID, 0x8115) }, /* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
312         { USB_DEVICE(DELL_VENDOR_ID, 0x8116) }, /* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
313         { USB_DEVICE(DELL_VENDOR_ID, 0x8117) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO ExpressCard == Novatel Merlin XV620 CDMA/EV-DO */
314         { USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard == Novatel Merlin XU870 HSDPA/3G */
315         { USB_DEVICE(DELL_VENDOR_ID, 0x8128) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite E720 CDMA/EV-DO */
316         { USB_DEVICE(DELL_VENDOR_ID, 0x8129) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite ET620 CDMA/EV-DO */
317         { USB_DEVICE(DELL_VENDOR_ID, 0x8133) }, /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
318         { USB_DEVICE(DELL_VENDOR_ID, 0x8136) }, /* Dell Wireless HSDPA 5520 == Novatel Expedite EU860D */
319         { USB_DEVICE(DELL_VENDOR_ID, 0x8137) }, /* Dell Wireless HSDPA 5520 */
320         { USB_DEVICE(DELL_VENDOR_ID, 0x8138) }, /* Dell Wireless 5520 Voda I Mobile Broadband (3G HSDPA) Minicard */
321         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },
322         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
323         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
324         { USB_DEVICE(AXESSTEL_VENDOR_ID, AXESSTEL_PRODUCT_MV110H) },
325         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_MSA501HS) },
326         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_ET502HS) },
327         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
328         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
329         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1004) },
330         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1005) },
331         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1006) },
332         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1007) },
333         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1008) },
334         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1009) },
335         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100A) },
336         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100B) },
337         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100C) },
338         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100D) },
339         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100E) },
340         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100F) },
341         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1010) },
342         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1011) },
343         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1012) },
344         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC650) },
345         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
346         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */
347         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
348         { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */
349         { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864E) },
350         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF628) },
351         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH) },
352         { } /* Terminating entry */
353 };
354 MODULE_DEVICE_TABLE(usb, option_ids);
355
356 static struct usb_driver option_driver = {
357         .name       = "option",
358         .probe      = usb_serial_probe,
359         .disconnect = usb_serial_disconnect,
360         .id_table   = option_ids,
361         .no_dynamic_id =        1,
362 };
363
364 /* The card has three separate interfaces, which the serial driver
365  * recognizes separately, thus num_port=1.
366  */
367
368 static struct usb_serial_driver option_1port_device = {
369         .driver = {
370                 .owner =        THIS_MODULE,
371                 .name =         "option1",
372         },
373         .description       = "GSM modem (1-port)",
374         .usb_driver        = &option_driver,
375         .id_table          = option_ids,
376         .num_ports         = 1,
377         .open              = option_open,
378         .close             = option_close,
379         .write             = option_write,
380         .write_room        = option_write_room,
381         .chars_in_buffer   = option_chars_in_buffer,
382         .set_termios       = option_set_termios,
383         .tiocmget          = option_tiocmget,
384         .tiocmset          = option_tiocmset,
385         .attach            = option_startup,
386         .shutdown          = option_shutdown,
387         .read_int_callback = option_instat_callback,
388 };
389
390 static int debug;
391
392 /* per port private data */
393
394 #define N_IN_URB 4
395 #define N_OUT_URB 1
396 #define IN_BUFLEN 4096
397 #define OUT_BUFLEN 128
398
399 struct option_port_private {
400         /* Input endpoints and buffer for this port */
401         struct urb *in_urbs[N_IN_URB];
402         u8 *in_buffer[N_IN_URB];
403         /* Output endpoints and buffer for this port */
404         struct urb *out_urbs[N_OUT_URB];
405         u8 *out_buffer[N_OUT_URB];
406         unsigned long out_busy;         /* Bit vector of URBs in use */
407
408         /* Settings for the port */
409         int rts_state;  /* Handshaking pins (outputs) */
410         int dtr_state;
411         int cts_state;  /* Handshaking pins (inputs) */
412         int dsr_state;
413         int dcd_state;
414         int ri_state;
415
416         unsigned long tx_start_time[N_OUT_URB];
417 };
418
419 /* Functions used by new usb-serial code. */
420 static int __init option_init(void)
421 {
422         int retval;
423         retval = usb_serial_register(&option_1port_device);
424         if (retval)
425                 goto failed_1port_device_register;
426         retval = usb_register(&option_driver);
427         if (retval)
428                 goto failed_driver_register;
429
430         info(DRIVER_DESC ": " DRIVER_VERSION);
431
432         return 0;
433
434 failed_driver_register:
435         usb_serial_deregister(&option_1port_device);
436 failed_1port_device_register:
437         return retval;
438 }
439
440 static void __exit option_exit(void)
441 {
442         usb_deregister(&option_driver);
443         usb_serial_deregister(&option_1port_device);
444 }
445
446 module_init(option_init);
447 module_exit(option_exit);
448
449 static void option_set_termios(struct tty_struct *tty,
450                 struct usb_serial_port *port, struct ktermios *old_termios)
451 {
452         dbg("%s", __func__);
453         /* Doesn't support option setting */
454         tty_termios_copy_hw(tty->termios, old_termios);
455         option_send_setup(tty, port);
456 }
457
458 static int option_tiocmget(struct tty_struct *tty, struct file *file)
459 {
460         struct usb_serial_port *port = tty->driver_data;
461         unsigned int value;
462         struct option_port_private *portdata;
463
464         portdata = usb_get_serial_port_data(port);
465
466         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
467                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
468                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
469                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
470                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
471                 ((portdata->ri_state) ? TIOCM_RNG : 0);
472
473         return value;
474 }
475
476 static int option_tiocmset(struct tty_struct *tty, struct file *file,
477                         unsigned int set, unsigned int clear)
478 {
479         struct usb_serial_port *port = tty->driver_data;
480         struct option_port_private *portdata;
481
482         portdata = usb_get_serial_port_data(port);
483
484         /* FIXME: what locks portdata fields ? */
485         if (set & TIOCM_RTS)
486                 portdata->rts_state = 1;
487         if (set & TIOCM_DTR)
488                 portdata->dtr_state = 1;
489
490         if (clear & TIOCM_RTS)
491                 portdata->rts_state = 0;
492         if (clear & TIOCM_DTR)
493                 portdata->dtr_state = 0;
494         return option_send_setup(tty, port);
495 }
496
497 /* Write */
498 static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
499                         const unsigned char *buf, int count)
500 {
501         struct option_port_private *portdata;
502         int i;
503         int left, todo;
504         struct urb *this_urb = NULL; /* spurious */
505         int err;
506
507         portdata = usb_get_serial_port_data(port);
508
509         dbg("%s: write (%d chars)", __func__, count);
510
511         i = 0;
512         left = count;
513         for (i = 0; left > 0 && i < N_OUT_URB; i++) {
514                 todo = left;
515                 if (todo > OUT_BUFLEN)
516                         todo = OUT_BUFLEN;
517
518                 this_urb = portdata->out_urbs[i];
519                 if (test_and_set_bit(i, &portdata->out_busy)) {
520                         if (time_before(jiffies,
521                                         portdata->tx_start_time[i] + 10 * HZ))
522                                 continue;
523                         usb_unlink_urb(this_urb);
524                         continue;
525                 }
526                 if (this_urb->status != 0)
527                         dbg("usb_write %p failed (err=%d)",
528                                 this_urb, this_urb->status);
529
530                 dbg("%s: endpoint %d buf %d", __func__,
531                         usb_pipeendpoint(this_urb->pipe), i);
532
533                 /* send the data */
534                 memcpy(this_urb->transfer_buffer, buf, todo);
535                 this_urb->transfer_buffer_length = todo;
536
537                 this_urb->dev = port->serial->dev;
538                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
539                 if (err) {
540                         dbg("usb_submit_urb %p (write bulk) failed "
541                                 "(%d, has %d)", this_urb,
542                                 err, this_urb->status);
543                         clear_bit(i, &portdata->out_busy);
544                         continue;
545                 }
546                 portdata->tx_start_time[i] = jiffies;
547                 buf += todo;
548                 left -= todo;
549         }
550
551         count -= left;
552         dbg("%s: wrote (did %d)", __func__, count);
553         return count;
554 }
555
556 static void option_indat_callback(struct urb *urb)
557 {
558         int err;
559         int endpoint;
560         struct usb_serial_port *port;
561         struct tty_struct *tty;
562         unsigned char *data = urb->transfer_buffer;
563         int status = urb->status;
564
565         dbg("%s: %p", __func__, urb);
566
567         endpoint = usb_pipeendpoint(urb->pipe);
568         port =  urb->context;
569
570         if (status) {
571                 dbg("%s: nonzero status: %d on endpoint %02x.",
572                     __func__, status, endpoint);
573         } else {
574                 tty = port->port.tty;
575                 if (urb->actual_length) {
576                         tty_buffer_request_room(tty, urb->actual_length);
577                         tty_insert_flip_string(tty, data, urb->actual_length);
578                         tty_flip_buffer_push(tty);
579                 } else {
580                         dbg("%s: empty read urb received", __func__);
581                 }
582
583                 /* Resubmit urb so we continue receiving */
584                 if (port->port.count && status != -ESHUTDOWN) {
585                         err = usb_submit_urb(urb, GFP_ATOMIC);
586                         if (err)
587                                 printk(KERN_ERR "%s: resubmit read urb failed. "
588                                         "(%d)", __func__, err);
589                 }
590         }
591         return;
592 }
593
594 static void option_outdat_callback(struct urb *urb)
595 {
596         struct usb_serial_port *port;
597         struct option_port_private *portdata;
598         int i;
599
600         dbg("%s", __func__);
601
602         port =  urb->context;
603
604         usb_serial_port_softint(port);
605
606         portdata = usb_get_serial_port_data(port);
607         for (i = 0; i < N_OUT_URB; ++i) {
608                 if (portdata->out_urbs[i] == urb) {
609                         smp_mb__before_clear_bit();
610                         clear_bit(i, &portdata->out_busy);
611                         break;
612                 }
613         }
614 }
615
616 static void option_instat_callback(struct urb *urb)
617 {
618         int err;
619         int status = urb->status;
620         struct usb_serial_port *port =  urb->context;
621         struct option_port_private *portdata = usb_get_serial_port_data(port);
622         struct usb_serial *serial = port->serial;
623
624         dbg("%s", __func__);
625         dbg("%s: urb %p port %p has data %p", __func__, urb, port, portdata);
626
627         if (status == 0) {
628                 struct usb_ctrlrequest *req_pkt =
629                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
630
631                 if (!req_pkt) {
632                         dbg("%s: NULL req_pkt\n", __func__);
633                         return;
634                 }
635                 if ((req_pkt->bRequestType == 0xA1) &&
636                                 (req_pkt->bRequest == 0x20)) {
637                         int old_dcd_state;
638                         unsigned char signals = *((unsigned char *)
639                                         urb->transfer_buffer +
640                                         sizeof(struct usb_ctrlrequest));
641
642                         dbg("%s: signal x%x", __func__, signals);
643
644                         old_dcd_state = portdata->dcd_state;
645                         portdata->cts_state = 1;
646                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
647                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
648                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
649
650                         if (port->port.tty && !C_CLOCAL(port->port.tty) &&
651                                         old_dcd_state && !portdata->dcd_state)
652                                 tty_hangup(port->port.tty);
653                 } else {
654                         dbg("%s: type %x req %x", __func__,
655                                 req_pkt->bRequestType, req_pkt->bRequest);
656                 }
657         } else
658                 dbg("%s: error %d", __func__, status);
659
660         /* Resubmit urb so we continue receiving IRQ data */
661         if (status != -ESHUTDOWN) {
662                 urb->dev = serial->dev;
663                 err = usb_submit_urb(urb, GFP_ATOMIC);
664                 if (err)
665                         dbg("%s: resubmit intr urb failed. (%d)",
666                                 __func__, err);
667         }
668 }
669
670 static int option_write_room(struct tty_struct *tty)
671 {
672         struct usb_serial_port *port = tty->driver_data;
673         struct option_port_private *portdata;
674         int i;
675         int data_len = 0;
676         struct urb *this_urb;
677
678         portdata = usb_get_serial_port_data(port);
679
680
681         for (i = 0; i < N_OUT_URB; i++) {
682                 this_urb = portdata->out_urbs[i];
683                 if (this_urb && !test_bit(i, &portdata->out_busy))
684                         data_len += OUT_BUFLEN;
685         }
686
687         dbg("%s: %d", __func__, data_len);
688         return data_len;
689 }
690
691 static int option_chars_in_buffer(struct tty_struct *tty)
692 {
693         struct usb_serial_port *port = tty->driver_data;
694         struct option_port_private *portdata;
695         int i;
696         int data_len = 0;
697         struct urb *this_urb;
698
699         portdata = usb_get_serial_port_data(port);
700
701         for (i = 0; i < N_OUT_URB; i++) {
702                 this_urb = portdata->out_urbs[i];
703                 /* FIXME: This locking is insufficient as this_urb may
704                    go unused during the test */
705                 if (this_urb && test_bit(i, &portdata->out_busy))
706                         data_len += this_urb->transfer_buffer_length;
707         }
708         dbg("%s: %d", __func__, data_len);
709         return data_len;
710 }
711
712 static int option_open(struct tty_struct *tty,
713                         struct usb_serial_port *port, struct file *filp)
714 {
715         struct option_port_private *portdata;
716         struct usb_serial *serial = port->serial;
717         int i, err;
718         struct urb *urb;
719
720         portdata = usb_get_serial_port_data(port);
721
722         dbg("%s", __func__);
723
724         /* Set some sane defaults */
725         portdata->rts_state = 1;
726         portdata->dtr_state = 1;
727
728         /* Reset low level data toggle and start reading from endpoints */
729         for (i = 0; i < N_IN_URB; i++) {
730                 urb = portdata->in_urbs[i];
731                 if (!urb)
732                         continue;
733                 if (urb->dev != serial->dev) {
734                         dbg("%s: dev %p != %p", __func__,
735                                 urb->dev, serial->dev);
736                         continue;
737                 }
738
739                 /*
740                  * make sure endpoint data toggle is synchronized with the
741                  * device
742                  */
743                 usb_clear_halt(urb->dev, urb->pipe);
744
745                 err = usb_submit_urb(urb, GFP_KERNEL);
746                 if (err) {
747                         dbg("%s: submit urb %d failed (%d) %d",
748                                 __func__, i, err,
749                                 urb->transfer_buffer_length);
750                 }
751         }
752
753         /* Reset low level data toggle on out endpoints */
754         for (i = 0; i < N_OUT_URB; i++) {
755                 urb = portdata->out_urbs[i];
756                 if (!urb)
757                         continue;
758                 urb->dev = serial->dev;
759                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
760                                 usb_pipeout(urb->pipe), 0); */
761         }
762
763         if (tty)
764                 tty->low_latency = 1;
765
766         option_send_setup(tty, port);
767
768         return 0;
769 }
770
771 static void option_close(struct tty_struct *tty,
772                         struct usb_serial_port *port, struct file *filp)
773 {
774         int i;
775         struct usb_serial *serial = port->serial;
776         struct option_port_private *portdata;
777
778         dbg("%s", __func__);
779         portdata = usb_get_serial_port_data(port);
780
781         portdata->rts_state = 0;
782         portdata->dtr_state = 0;
783
784         if (serial->dev) {
785                 mutex_lock(&serial->disc_mutex);
786                 if (!serial->disconnected)
787                         option_send_setup(tty, port);
788                 mutex_unlock(&serial->disc_mutex);
789
790                 /* Stop reading/writing urbs */
791                 for (i = 0; i < N_IN_URB; i++)
792                         usb_kill_urb(portdata->in_urbs[i]);
793                 for (i = 0; i < N_OUT_URB; i++)
794                         usb_kill_urb(portdata->out_urbs[i]);
795         }
796         port->port.tty = NULL;  /* FIXME */
797 }
798
799 /* Helper functions used by option_setup_urbs */
800 static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
801                 int dir, void *ctx, char *buf, int len,
802                 void (*callback)(struct urb *))
803 {
804         struct urb *urb;
805
806         if (endpoint == -1)
807                 return NULL;            /* endpoint not needed */
808
809         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
810         if (urb == NULL) {
811                 dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
812                 return NULL;
813         }
814
815                 /* Fill URB using supplied data. */
816         usb_fill_bulk_urb(urb, serial->dev,
817                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
818                       buf, len, callback, ctx);
819
820         return urb;
821 }
822
823 /* Setup urbs */
824 static void option_setup_urbs(struct usb_serial *serial)
825 {
826         int i, j;
827         struct usb_serial_port *port;
828         struct option_port_private *portdata;
829
830         dbg("%s", __func__);
831
832         for (i = 0; i < serial->num_ports; i++) {
833                 port = serial->port[i];
834                 portdata = usb_get_serial_port_data(port);
835
836                 /* Do indat endpoints first */
837                 for (j = 0; j < N_IN_URB; ++j) {
838                         portdata->in_urbs[j] = option_setup_urb(serial,
839                                         port->bulk_in_endpointAddress,
840                                         USB_DIR_IN, port,
841                                         portdata->in_buffer[j],
842                                         IN_BUFLEN, option_indat_callback);
843                 }
844
845                 /* outdat endpoints */
846                 for (j = 0; j < N_OUT_URB; ++j) {
847                         portdata->out_urbs[j] = option_setup_urb(serial,
848                                         port->bulk_out_endpointAddress,
849                                         USB_DIR_OUT, port,
850                                         portdata->out_buffer[j],
851                                         OUT_BUFLEN, option_outdat_callback);
852                 }
853         }
854 }
855
856
857 /** send RTS/DTR state to the port.
858  *
859  * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
860  * CDC.
861 */
862 static int option_send_setup(struct tty_struct *tty,
863                                                 struct usb_serial_port *port)
864 {
865         struct usb_serial *serial = port->serial;
866         struct option_port_private *portdata;
867         int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
868         dbg("%s", __func__);
869
870         portdata = usb_get_serial_port_data(port);
871
872         if (tty) {
873                 int val = 0;
874                 if (portdata->dtr_state)
875                         val |= 0x01;
876                 if (portdata->rts_state)
877                         val |= 0x02;
878
879                 return usb_control_msg(serial->dev,
880                         usb_rcvctrlpipe(serial->dev, 0),
881                         0x22, 0x21, val, ifNum, NULL, 0, USB_CTRL_SET_TIMEOUT);
882         }
883         return 0;
884 }
885
886 static int option_startup(struct usb_serial *serial)
887 {
888         int i, j, err;
889         struct usb_serial_port *port;
890         struct option_port_private *portdata;
891         u8 *buffer;
892
893         dbg("%s", __func__);
894
895         /* Now setup per port private data */
896         for (i = 0; i < serial->num_ports; i++) {
897                 port = serial->port[i];
898                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
899                 if (!portdata) {
900                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
901                                         __func__, i);
902                         return 1;
903                 }
904
905                 for (j = 0; j < N_IN_URB; j++) {
906                         buffer = (u8 *)__get_free_page(GFP_KERNEL);
907                         if (!buffer)
908                                 goto bail_out_error;
909                         portdata->in_buffer[j] = buffer;
910                 }
911
912                 for (j = 0; j < N_OUT_URB; j++) {
913                         buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
914                         if (!buffer)
915                                 goto bail_out_error2;
916                         portdata->out_buffer[j] = buffer;
917                 }
918
919                 usb_set_serial_port_data(port, portdata);
920
921                 if (!port->interrupt_in_urb)
922                         continue;
923                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
924                 if (err)
925                         dbg("%s: submit irq_in urb failed %d",
926                                 __func__, err);
927         }
928         option_setup_urbs(serial);
929         return 0;
930
931 bail_out_error2:
932         for (j = 0; j < N_OUT_URB; j++)
933                 kfree(portdata->out_buffer[j]);
934 bail_out_error:
935         for (j = 0; j < N_IN_URB; j++)
936                 if (portdata->in_buffer[j])
937                         free_page((unsigned long)portdata->in_buffer[j]);
938         kfree(portdata);
939         return 1;
940 }
941
942 static void option_shutdown(struct usb_serial *serial)
943 {
944         int i, j;
945         struct usb_serial_port *port;
946         struct option_port_private *portdata;
947
948         dbg("%s", __func__);
949
950         /* Stop reading/writing urbs */
951         for (i = 0; i < serial->num_ports; ++i) {
952                 port = serial->port[i];
953                 portdata = usb_get_serial_port_data(port);
954                 for (j = 0; j < N_IN_URB; j++)
955                         usb_kill_urb(portdata->in_urbs[j]);
956                 for (j = 0; j < N_OUT_URB; j++)
957                         usb_kill_urb(portdata->out_urbs[j]);
958         }
959
960         /* Now free them */
961         for (i = 0; i < serial->num_ports; ++i) {
962                 port = serial->port[i];
963                 portdata = usb_get_serial_port_data(port);
964
965                 for (j = 0; j < N_IN_URB; j++) {
966                         if (portdata->in_urbs[j]) {
967                                 usb_free_urb(portdata->in_urbs[j]);
968                                 free_page((unsigned long)
969                                         portdata->in_buffer[j]);
970                                 portdata->in_urbs[j] = NULL;
971                         }
972                 }
973                 for (j = 0; j < N_OUT_URB; j++) {
974                         if (portdata->out_urbs[j]) {
975                                 usb_free_urb(portdata->out_urbs[j]);
976                                 kfree(portdata->out_buffer[j]);
977                                 portdata->out_urbs[j] = NULL;
978                         }
979                 }
980         }
981
982         /* Now free per port private data */
983         for (i = 0; i < serial->num_ports; i++) {
984                 port = serial->port[i];
985                 kfree(usb_get_serial_port_data(port));
986         }
987 }
988
989 MODULE_AUTHOR(DRIVER_AUTHOR);
990 MODULE_DESCRIPTION(DRIVER_DESC);
991 MODULE_VERSION(DRIVER_VERSION);
992 MODULE_LICENSE("GPL");
993
994 module_param(debug, bool, S_IRUGO | S_IWUSR);
995 MODULE_PARM_DESC(debug, "Debug messages");