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_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_E1403                    0x1403
  99 #define HUAWEI_PRODUCT_E1405                    0x1405
 100 #define HUAWEI_PRODUCT_E1406                    0x1406
 101 #define HUAWEI_PRODUCT_E1408                    0x1408
 102 #define HUAWEI_PRODUCT_E1409                    0x1409
 103 #define HUAWEI_PRODUCT_E1410                    0x1410
 104 #define HUAWEI_PRODUCT_E1411                    0x1411
 105 #define HUAWEI_PRODUCT_E1412                    0x1412
 106 #define HUAWEI_PRODUCT_E1413                    0x1413
 107 #define HUAWEI_PRODUCT_E1414                    0x1414
 108 #define HUAWEI_PRODUCT_E1415                    0x1415
 109 #define HUAWEI_PRODUCT_E1416                    0x1416
 110 #define HUAWEI_PRODUCT_E1417                    0x1417
 111 #define HUAWEI_PRODUCT_E1418                    0x1418
 112 #define HUAWEI_PRODUCT_E1419                    0x1419
 113
 114 #define NOVATELWIRELESS_VENDOR_ID               0x1410
 115
 116 /* MERLIN EVDO PRODUCTS */
 117 #define NOVATELWIRELESS_PRODUCT_V640            0x1100
 118 #define NOVATELWIRELESS_PRODUCT_V620            0x1110
 119 #define NOVATELWIRELESS_PRODUCT_V740            0x1120
 120 #define NOVATELWIRELESS_PRODUCT_V720            0x1130
 121
 122 /* MERLIN HSDPA/HSPA PRODUCTS */
 123 #define NOVATELWIRELESS_PRODUCT_U730            0x1400
 124 #define NOVATELWIRELESS_PRODUCT_U740            0x1410
 125 #define NOVATELWIRELESS_PRODUCT_U870            0x1420
 126 #define NOVATELWIRELESS_PRODUCT_XU870           0x1430
 127 #define NOVATELWIRELESS_PRODUCT_X950D           0x1450
 128
 129 /* EXPEDITE PRODUCTS */
 130 #define NOVATELWIRELESS_PRODUCT_EV620           0x2100
 131 #define NOVATELWIRELESS_PRODUCT_ES720           0x2110
 132 #define NOVATELWIRELESS_PRODUCT_E725            0x2120
 133 #define NOVATELWIRELESS_PRODUCT_ES620           0x2130
 134 #define NOVATELWIRELESS_PRODUCT_EU730           0x2400
 135 #define NOVATELWIRELESS_PRODUCT_EU740           0x2410
 136 #define NOVATELWIRELESS_PRODUCT_EU870D          0x2420
 137
 138 /* OVATION PRODUCTS */
 139 #define NOVATELWIRELESS_PRODUCT_MC727           0x4100
 140 #define NOVATELWIRELESS_PRODUCT_MC950D          0x4400
 141
 142 /* FUTURE NOVATEL PRODUCTS */
 143 #define NOVATELWIRELESS_PRODUCT_EVDO_1          0x6000
 144 #define NOVATELWIRELESS_PRODUCT_HSPA_1          0x7000
 145 #define NOVATELWIRELESS_PRODUCT_EMBEDDED_1      0x8000
 146 #define NOVATELWIRELESS_PRODUCT_GLOBAL_1        0x9000
 147 #define NOVATELWIRELESS_PRODUCT_EVDO_2          0x6001
 148 #define NOVATELWIRELESS_PRODUCT_HSPA_2          0x7001
 149 #define NOVATELWIRELESS_PRODUCT_EMBEDDED_2      0x8001
 150 #define NOVATELWIRELESS_PRODUCT_GLOBAL_2        0x9001
 151
 152 /* AMOI PRODUCTS */
 153 #define AMOI_VENDOR_ID                          0x1614
 154 #define AMOI_PRODUCT_H01                        0x0800
 155 #define AMOI_PRODUCT_H01A                       0x7002
 156 #define AMOI_PRODUCT_H02                        0x0802
 157
 158 #define DELL_VENDOR_ID                          0x413C
 159
 160 #define KYOCERA_VENDOR_ID                       0x0c88
 161 #define KYOCERA_PRODUCT_KPC650                  0x17da
 162 #define KYOCERA_PRODUCT_KPC680                  0x180a
 163
 164 #define ANYDATA_VENDOR_ID                       0x16d5
 165 #define ANYDATA_PRODUCT_ADU_620UW               0x6202
 166 #define ANYDATA_PRODUCT_ADU_E100A               0x6501
 167 #define ANYDATA_PRODUCT_ADU_500A                0x6502
 168
 169 #define AXESSTEL_VENDOR_ID                      0x1726
 170 #define AXESSTEL_PRODUCT_MV110H                 0x1000
 171
 172 #define ONDA_VENDOR_ID                          0x19d2
 173 #define ONDA_PRODUCT_MSA501HS                   0x0001
 174 #define ONDA_PRODUCT_ET502HS                    0x0002
 175
 176 #define BANDRICH_VENDOR_ID                      0x1A8D
 177 #define BANDRICH_PRODUCT_C100_1                 0x1002
 178 #define BANDRICH_PRODUCT_C100_2                 0x1003
 179 #define BANDRICH_PRODUCT_1004                   0x1004
 180 #define BANDRICH_PRODUCT_1005                   0x1005
 181 #define BANDRICH_PRODUCT_1006                   0x1006
 182 #define BANDRICH_PRODUCT_1007                   0x1007
 183 #define BANDRICH_PRODUCT_1008                   0x1008
 184 #define BANDRICH_PRODUCT_1009                   0x1009
 185 #define BANDRICH_PRODUCT_100A                   0x100a
 186
 187 #define BANDRICH_PRODUCT_100B                   0x100b
 188 #define BANDRICH_PRODUCT_100C                   0x100c
 189 #define BANDRICH_PRODUCT_100D                   0x100d
 190 #define BANDRICH_PRODUCT_100E                   0x100e
 191
 192 #define BANDRICH_PRODUCT_100F                   0x100f
 193 #define BANDRICH_PRODUCT_1010                   0x1010
 194 #define BANDRICH_PRODUCT_1011                   0x1011
 195 #define BANDRICH_PRODUCT_1012                   0x1012
 196
 197 #define AMOI_VENDOR_ID                  0x1614
 198 #define AMOI_PRODUCT_9508                       0x0800
 199
 200 #define QUALCOMM_VENDOR_ID                      0x05C6
 201
 202 #define MAXON_VENDOR_ID                         0x16d8
 203
 204 #define TELIT_VENDOR_ID                         0x1bc7
 205 #define TELIT_PRODUCT_UC864E                    0x1003
 206
 207 /* ZTE PRODUCTS */
 208 #define ZTE_VENDOR_ID                           0x19d2
 209 #define ZTE_PRODUCT_MF628                       0x0015
 210 #define ZTE_PRODUCT_CDMA_TECH                   0xfffe
 211
 212 /* Ericsson products */
 213 #define ERICSSON_VENDOR_ID                      0x0bdb
 214 #define ERICSSON_PRODUCT_F3507G                 0x1900
 215
 216 static struct usb_device_id option_ids[] = {
 217         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
 218         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
 219         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
 220         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD) },
 221         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD_LIGHT) },
 222         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS) },
 223         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_LIGHT) },
 224         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD) },
 225         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT) },
 226         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
 227         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA_BUS) },
 228         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER) },
 229         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER_BUS) },
 230         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX_READY) },
 231         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_LIGHT) },
 232         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_GT) },
 233         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_EX) },
 234         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_MODEM) },
 235         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_MODEM) },
 236         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM) },
 237         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_LITE) },
 238         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) },
 239         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) },
 240         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) },
 241         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600, 0xff, 0xff, 0xff) },
 242         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220, 0xff, 0xff, 0xff) },
 243         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS, 0xff, 0xff, 0xff) },
 244         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1401, 0xff, 0xff, 0xff) },
 245         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1403, 0xff, 0xff, 0xff) },
 246         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1405, 0xff, 0xff, 0xff) },
 247         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1406, 0xff, 0xff, 0xff) },
 248         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1408, 0xff, 0xff, 0xff) },
 249         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1409, 0xff, 0xff, 0xff) },
 250         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1410, 0xff, 0xff, 0xff) },
 251         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1411, 0xff, 0xff, 0xff) },
 252         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1412, 0xff, 0xff, 0xff) },
 253         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1413, 0xff, 0xff, 0xff) },
 254         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1414, 0xff, 0xff, 0xff) },
 255         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1415, 0xff, 0xff, 0xff) },
 256         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1416, 0xff, 0xff, 0xff) },
 257         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1417, 0xff, 0xff, 0xff) },
 258         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1418, 0xff, 0xff, 0xff) },
 259         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1419, 0xff, 0xff, 0xff) },
 260         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_9508) },
 261         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */
 262         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */
 263         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) }, /* Novatel Merlin EX720/V740/X720 */
 264         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V720) }, /* Novatel Merlin V720/S720/PC720 */
 265         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U730) }, /* Novatel U730/U740 (VF version) */
 266         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U740) }, /* Novatel U740 */
 267         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U870) }, /* Novatel U870 */
 268         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_XU870) }, /* Novatel Merlin XU870 HSDPA/3G */
 269         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_X950D) }, /* Novatel X950D */
 270         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EV620) }, /* Novatel EV620/ES620 CDMA/EV-DO */
 271         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES720) }, /* Novatel ES620/ES720/U720/USB720 */
 272         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E725) }, /* Novatel E725/E726 */
 273         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES620) }, /* Novatel Merlin ES620 SM Bus */
 274         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU730) }, /* Novatel EU730 and Vodafone EU740 */
 275         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU740) }, /* Novatel non-Vodafone EU740 */
 276         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) }, /* Novatel EU850D/EU860D/EU870D */
 277         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) }, /* Novatel MC930D/MC950D */
 278         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) }, /* Novatel MC727/U727/USB727 */
 279         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_1) }, /* Novatel EVDO product */
 280         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_1) }, /* Novatel HSPA product */
 281         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_1) }, /* Novatel Embedded product */
 282         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_1) }, /* Novatel Global product */
 283         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_2) }, /* Novatel EVDO product */
 284         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_2) }, /* Novatel HSPA product */
 285         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_2) }, /* Novatel Embedded product */
 286         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_2) }, /* Novatel Global product */
 287
 288         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01) },
 289         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01A) },
 290         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H02) },
 291
 292         { USB_DEVICE(DELL_VENDOR_ID, 0x8114) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */
 293         { USB_DEVICE(DELL_VENDOR_ID, 0x8115) }, /* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 294         { USB_DEVICE(DELL_VENDOR_ID, 0x8116) }, /* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 295         { USB_DEVICE(DELL_VENDOR_ID, 0x8117) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO ExpressCard == Novatel Merlin XV620 CDMA/EV-DO */
 296         { USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard == Novatel Merlin XU870 HSDPA/3G */
 297         { USB_DEVICE(DELL_VENDOR_ID, 0x8128) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite E720 CDMA/EV-DO */
 298         { USB_DEVICE(DELL_VENDOR_ID, 0x8129) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite ET620 CDMA/EV-DO */
 299         { USB_DEVICE(DELL_VENDOR_ID, 0x8133) }, /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
 300         { USB_DEVICE(DELL_VENDOR_ID, 0x8136) }, /* Dell Wireless HSDPA 5520 == Novatel Expedite EU860D */
 301         { USB_DEVICE(DELL_VENDOR_ID, 0x8137) }, /* Dell Wireless HSDPA 5520 */
 302         { USB_DEVICE(DELL_VENDOR_ID, 0x8138) }, /* Dell Wireless 5520 Voda I Mobile Broadband (3G HSDPA) Minicard */
 303         { USB_DEVICE(DELL_VENDOR_ID, 0x8147) }, /* Dell Wireless 5530 Mobile Broadband (3G HSPA) Mini-Card */
 304         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },
 305         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
 306         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
 307         { USB_DEVICE(AXESSTEL_VENDOR_ID, AXESSTEL_PRODUCT_MV110H) },
 308         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_MSA501HS) },
 309         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_ET502HS) },
 310         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
 311         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
 312         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1004) },
 313         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1005) },
 314         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1006) },
 315         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1007) },
 316         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1008) },
 317         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1009) },
 318         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100A) },
 319         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100B) },
 320         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100C) },
 321         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100D) },
 322         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100E) },
 323         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100F) },
 324         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1010) },
 325         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1011) },
 326         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1012) },
 327         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC650) },
 328         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
 329         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */
 330         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
 331         { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */
 332         { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864E) },
 333         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF628) },
 334         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH) },
 335         { USB_DEVICE(ERICSSON_VENDOR_ID, ERICSSON_PRODUCT_F3507G) },
 336         { } /* Terminating entry */
 337 };
 338 MODULE_DEVICE_TABLE(usb, option_ids);
 339
 340 static struct usb_driver option_driver = {
 341         .name       = "option",
 342         .probe      = usb_serial_probe,
 343         .disconnect = usb_serial_disconnect,
 344         .id_table   = option_ids,
 345         .no_dynamic_id =        1,
 346 };
 347
 348 /* The card has three separate interfaces, which the serial driver
 349  * recognizes separately, thus num_port=1.
 350  */
 351
 352 static struct usb_serial_driver option_1port_device = {
 353         .driver = {
 354                 .owner =        THIS_MODULE,
 355                 .name =         "option1",
 356         },
 357         .description       = "GSM modem (1-port)",
 358         .usb_driver        = &option_driver,
 359         .id_table          = option_ids,
 360         .num_ports         = 1,
 361         .open              = option_open,
 362         .close             = option_close,
 363         .write             = option_write,
 364         .write_room        = option_write_room,
 365         .chars_in_buffer   = option_chars_in_buffer,
 366         .set_termios       = option_set_termios,
 367         .tiocmget          = option_tiocmget,
 368         .tiocmset          = option_tiocmset,
 369         .attach            = option_startup,
 370         .shutdown          = option_shutdown,
 371         .read_int_callback = option_instat_callback,
 372 };
 373
 374 static int debug;
 375
 376 /* per port private data */
 377
 378 #define N_IN_URB 4
 379 #define N_OUT_URB 1
 380 #define IN_BUFLEN 4096
 381 #define OUT_BUFLEN 128
 382
 383 struct option_port_private {
 384         /* Input endpoints and buffer for this port */
 385         struct urb *in_urbs[N_IN_URB];
 386         u8 *in_buffer[N_IN_URB];
 387         /* Output endpoints and buffer for this port */
 388         struct urb *out_urbs[N_OUT_URB];
 389         u8 *out_buffer[N_OUT_URB];
 390         unsigned long out_busy;         /* Bit vector of URBs in use */
 391
 392         /* Settings for the port */
 393         int rts_state;  /* Handshaking pins (outputs) */
 394         int dtr_state;
 395         int cts_state;  /* Handshaking pins (inputs) */
 396         int dsr_state;
 397         int dcd_state;
 398         int ri_state;
 399
 400         unsigned long tx_start_time[N_OUT_URB];
 401 };
 402
 403 /* Functions used by new usb-serial code. */
 404 static int __init option_init(void)
 405 {
 406         int retval;
 407         retval = usb_serial_register(&option_1port_device);
 408         if (retval)
 409                 goto failed_1port_device_register;
 410         retval = usb_register(&option_driver);
 411         if (retval)
 412                 goto failed_driver_register;
 413
 414         info(DRIVER_DESC ": " DRIVER_VERSION);
 415
 416         return 0;
 417
 418 failed_driver_register:
 419         usb_serial_deregister(&option_1port_device);
 420 failed_1port_device_register:
 421         return retval;
 422 }
 423
 424 static void __exit option_exit(void)
 425 {
 426         usb_deregister(&option_driver);
 427         usb_serial_deregister(&option_1port_device);
 428 }
 429
 430 module_init(option_init);
 431 module_exit(option_exit);
 432
 433 static void option_set_termios(struct tty_struct *tty,
 434                 struct usb_serial_port *port, struct ktermios *old_termios)
 435 {
 436         dbg("%s", __func__);
 437         /* Doesn't support option setting */
 438         tty_termios_copy_hw(tty->termios, old_termios);
 439         option_send_setup(tty, port);
 440 }
 441
 442 static int option_tiocmget(struct tty_struct *tty, struct file *file)
 443 {
 444         struct usb_serial_port *port = tty->driver_data;
 445         unsigned int value;
 446         struct option_port_private *portdata;
 447
 448         portdata = usb_get_serial_port_data(port);
 449
 450         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
 451                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
 452                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
 453                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
 454                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
 455                 ((portdata->ri_state) ? TIOCM_RNG : 0);
 456
 457         return value;
 458 }
 459
 460 static int option_tiocmset(struct tty_struct *tty, struct file *file,
 461                         unsigned int set, unsigned int clear)
 462 {
 463         struct usb_serial_port *port = tty->driver_data;
 464         struct option_port_private *portdata;
 465
 466         portdata = usb_get_serial_port_data(port);
 467
 468         /* FIXME: what locks portdata fields ? */
 469         if (set & TIOCM_RTS)
 470                 portdata->rts_state = 1;
 471         if (set & TIOCM_DTR)
 472                 portdata->dtr_state = 1;
 473
 474         if (clear & TIOCM_RTS)
 475                 portdata->rts_state = 0;
 476         if (clear & TIOCM_DTR)
 477                 portdata->dtr_state = 0;
 478         return option_send_setup(tty, port);
 479 }
 480
 481 /* Write */
 482 static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
 483                         const unsigned char *buf, int count)
 484 {
 485         struct option_port_private *portdata;
 486         int i;
 487         int left, todo;
 488         struct urb *this_urb = NULL; /* spurious */
 489         int err;
 490
 491         portdata = usb_get_serial_port_data(port);
 492
 493         dbg("%s: write (%d chars)", __func__, count);
 494
 495         i = 0;
 496         left = count;
 497         for (i = 0; left > 0 && i < N_OUT_URB; i++) {
 498                 todo = left;
 499                 if (todo > OUT_BUFLEN)
 500                         todo = OUT_BUFLEN;
 501
 502                 this_urb = portdata->out_urbs[i];
 503                 if (test_and_set_bit(i, &portdata->out_busy)) {
 504                         if (time_before(jiffies,
 505                                         portdata->tx_start_time[i] + 10 * HZ))
 506                                 continue;
 507                         usb_unlink_urb(this_urb);
 508                         continue;
 509                 }
 510                 if (this_urb->status != 0)
 511                         dbg("usb_write %p failed (err=%d)",
 512                                 this_urb, this_urb->status);
 513
 514                 dbg("%s: endpoint %d buf %d", __func__,
 515                         usb_pipeendpoint(this_urb->pipe), i);
 516
 517                 /* send the data */
 518                 memcpy(this_urb->transfer_buffer, buf, todo);
 519                 this_urb->transfer_buffer_length = todo;
 520
 521                 this_urb->dev = port->serial->dev;
 522                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 523                 if (err) {
 524                         dbg("usb_submit_urb %p (write bulk) failed "
 525                                 "(%d, has %d)", this_urb,
 526                                 err, this_urb->status);
 527                         clear_bit(i, &portdata->out_busy);
 528                         continue;
 529                 }
 530                 portdata->tx_start_time[i] = jiffies;
 531                 buf += todo;
 532                 left -= todo;
 533         }
 534
 535         count -= left;
 536         dbg("%s: wrote (did %d)", __func__, count);
 537         return count;
 538 }
 539
 540 static void option_indat_callback(struct urb *urb)
 541 {
 542         int err;
 543         int endpoint;
 544         struct usb_serial_port *port;
 545         struct tty_struct *tty;
 546         unsigned char *data = urb->transfer_buffer;
 547         int status = urb->status;
 548
 549         dbg("%s: %p", __func__, urb);
 550
 551         endpoint = usb_pipeendpoint(urb->pipe);
 552         port =  urb->context;
 553
 554         if (status) {
 555                 dbg("%s: nonzero status: %d on endpoint %02x.",
 556                     __func__, status, endpoint);
 557         } else {
 558                 tty = port->port.tty;
 559                 if (urb->actual_length) {
 560                         tty_buffer_request_room(tty, urb->actual_length);
 561                         tty_insert_flip_string(tty, data, urb->actual_length);
 562                         tty_flip_buffer_push(tty);
 563                 } else {
 564                         dbg("%s: empty read urb received", __func__);
 565                 }
 566
 567                 /* Resubmit urb so we continue receiving */
 568                 if (port->port.count && status != -ESHUTDOWN) {
 569                         err = usb_submit_urb(urb, GFP_ATOMIC);
 570                         if (err)
 571                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 572                                         "(%d)", __func__, err);
 573                 }
 574         }
 575         return;
 576 }
 577
 578 static void option_outdat_callback(struct urb *urb)
 579 {
 580         struct usb_serial_port *port;
 581         struct option_port_private *portdata;
 582         int i;
 583
 584         dbg("%s", __func__);
 585
 586         port =  urb->context;
 587
 588         usb_serial_port_softint(port);
 589
 590         portdata = usb_get_serial_port_data(port);
 591         for (i = 0; i < N_OUT_URB; ++i) {
 592                 if (portdata->out_urbs[i] == urb) {
 593                         smp_mb__before_clear_bit();
 594                         clear_bit(i, &portdata->out_busy);
 595                         break;
 596                 }
 597         }
 598 }
 599
 600 static void option_instat_callback(struct urb *urb)
 601 {
 602         int err;
 603         int status = urb->status;
 604         struct usb_serial_port *port =  urb->context;
 605         struct option_port_private *portdata = usb_get_serial_port_data(port);
 606         struct usb_serial *serial = port->serial;
 607
 608         dbg("%s", __func__);
 609         dbg("%s: urb %p port %p has data %p", __func__, urb, port, portdata);
 610
 611         if (status == 0) {
 612                 struct usb_ctrlrequest *req_pkt =
 613                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 614
 615                 if (!req_pkt) {
 616                         dbg("%s: NULL req_pkt\n", __func__);
 617                         return;
 618                 }
 619                 if ((req_pkt->bRequestType == 0xA1) &&
 620                                 (req_pkt->bRequest == 0x20)) {
 621                         int old_dcd_state;
 622                         unsigned char signals = *((unsigned char *)
 623                                         urb->transfer_buffer +
 624                                         sizeof(struct usb_ctrlrequest));
 625
 626                         dbg("%s: signal x%x", __func__, signals);
 627
 628                         old_dcd_state = portdata->dcd_state;
 629                         portdata->cts_state = 1;
 630                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 631                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 632                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 633
 634                         if (port->port.tty && !C_CLOCAL(port->port.tty) &&
 635                                         old_dcd_state && !portdata->dcd_state)
 636                                 tty_hangup(port->port.tty);
 637                 } else {
 638                         dbg("%s: type %x req %x", __func__,
 639                                 req_pkt->bRequestType, req_pkt->bRequest);
 640                 }
 641         } else
 642                 dbg("%s: error %d", __func__, status);
 643
 644         /* Resubmit urb so we continue receiving IRQ data */
 645         if (status != -ESHUTDOWN) {
 646                 urb->dev = serial->dev;
 647                 err = usb_submit_urb(urb, GFP_ATOMIC);
 648                 if (err)
 649                         dbg("%s: resubmit intr urb failed. (%d)",
 650                                 __func__, err);
 651         }
 652 }
 653
 654 static int option_write_room(struct tty_struct *tty)
 655 {
 656         struct usb_serial_port *port = tty->driver_data;
 657         struct option_port_private *portdata;
 658         int i;
 659         int data_len = 0;
 660         struct urb *this_urb;
 661
 662         portdata = usb_get_serial_port_data(port);
 663
 664
 665         for (i = 0; i < N_OUT_URB; i++) {
 666                 this_urb = portdata->out_urbs[i];
 667                 if (this_urb && !test_bit(i, &portdata->out_busy))
 668                         data_len += OUT_BUFLEN;
 669         }
 670
 671         dbg("%s: %d", __func__, data_len);
 672         return data_len;
 673 }
 674
 675 static int option_chars_in_buffer(struct tty_struct *tty)
 676 {
 677         struct usb_serial_port *port = tty->driver_data;
 678         struct option_port_private *portdata;
 679         int i;
 680         int data_len = 0;
 681         struct urb *this_urb;
 682
 683         portdata = usb_get_serial_port_data(port);
 684
 685         for (i = 0; i < N_OUT_URB; i++) {
 686                 this_urb = portdata->out_urbs[i];
 687                 /* FIXME: This locking is insufficient as this_urb may
 688                    go unused during the test */
 689                 if (this_urb && test_bit(i, &portdata->out_busy))
 690                         data_len += this_urb->transfer_buffer_length;
 691         }
 692         dbg("%s: %d", __func__, data_len);
 693         return data_len;
 694 }
 695
 696 static int option_open(struct tty_struct *tty,
 697                         struct usb_serial_port *port, struct file *filp)
 698 {
 699         struct option_port_private *portdata;
 700         struct usb_serial *serial = port->serial;
 701         int i, err;
 702         struct urb *urb;
 703
 704         portdata = usb_get_serial_port_data(port);
 705
 706         dbg("%s", __func__);
 707
 708         /* Set some sane defaults */
 709         portdata->rts_state = 1;
 710         portdata->dtr_state = 1;
 711
 712         /* Reset low level data toggle and start reading from endpoints */
 713         for (i = 0; i < N_IN_URB; i++) {
 714                 urb = portdata->in_urbs[i];
 715                 if (!urb)
 716                         continue;
 717                 if (urb->dev != serial->dev) {
 718                         dbg("%s: dev %p != %p", __func__,
 719                                 urb->dev, serial->dev);
 720                         continue;
 721                 }
 722
 723                 /*
 724                  * make sure endpoint data toggle is synchronized with the
 725                  * device
 726                  */
 727                 usb_clear_halt(urb->dev, urb->pipe);
 728
 729                 err = usb_submit_urb(urb, GFP_KERNEL);
 730                 if (err) {
 731                         dbg("%s: submit urb %d failed (%d) %d",
 732                                 __func__, i, err,
 733                                 urb->transfer_buffer_length);
 734                 }
 735         }
 736
 737         /* Reset low level data toggle on out endpoints */
 738         for (i = 0; i < N_OUT_URB; i++) {
 739                 urb = portdata->out_urbs[i];
 740                 if (!urb)
 741                         continue;
 742                 urb->dev = serial->dev;
 743                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 744                                 usb_pipeout(urb->pipe), 0); */
 745         }
 746
 747         if (tty)
 748                 tty->low_latency = 1;
 749
 750         option_send_setup(tty, port);
 751
 752         return 0;
 753 }
 754
 755 static void option_close(struct tty_struct *tty,
 756                         struct usb_serial_port *port, struct file *filp)
 757 {
 758         int i;
 759         struct usb_serial *serial = port->serial;
 760         struct option_port_private *portdata;
 761
 762         dbg("%s", __func__);
 763         portdata = usb_get_serial_port_data(port);
 764
 765         portdata->rts_state = 0;
 766         portdata->dtr_state = 0;
 767
 768         if (serial->dev) {
 769                 mutex_lock(&serial->disc_mutex);
 770                 if (!serial->disconnected)
 771                         option_send_setup(tty, port);
 772                 mutex_unlock(&serial->disc_mutex);
 773
 774                 /* Stop reading/writing urbs */
 775                 for (i = 0; i < N_IN_URB; i++)
 776                         usb_kill_urb(portdata->in_urbs[i]);
 777                 for (i = 0; i < N_OUT_URB; i++)
 778                         usb_kill_urb(portdata->out_urbs[i]);
 779         }
 780         port->port.tty = NULL;  /* FIXME */
 781 }
 782
 783 /* Helper functions used by option_setup_urbs */
 784 static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
 785                 int dir, void *ctx, char *buf, int len,
 786                 void (*callback)(struct urb *))
 787 {
 788         struct urb *urb;
 789
 790         if (endpoint == -1)
 791                 return NULL;            /* endpoint not needed */
 792
 793         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 794         if (urb == NULL) {
 795                 dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
 796                 return NULL;
 797         }
 798
 799                 /* Fill URB using supplied data. */
 800         usb_fill_bulk_urb(urb, serial->dev,
 801                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 802                       buf, len, callback, ctx);
 803
 804         return urb;
 805 }
 806
 807 /* Setup urbs */
 808 static void option_setup_urbs(struct usb_serial *serial)
 809 {
 810         int i, j;
 811         struct usb_serial_port *port;
 812         struct option_port_private *portdata;
 813
 814         dbg("%s", __func__);
 815
 816         for (i = 0; i < serial->num_ports; i++) {
 817                 port = serial->port[i];
 818                 portdata = usb_get_serial_port_data(port);
 819
 820                 /* Do indat endpoints first */
 821                 for (j = 0; j < N_IN_URB; ++j) {
 822                         portdata->in_urbs[j] = option_setup_urb(serial,
 823                                         port->bulk_in_endpointAddress,
 824                                         USB_DIR_IN, port,
 825                                         portdata->in_buffer[j],
 826                                         IN_BUFLEN, option_indat_callback);
 827                 }
 828
 829                 /* outdat endpoints */
 830                 for (j = 0; j < N_OUT_URB; ++j) {
 831                         portdata->out_urbs[j] = option_setup_urb(serial,
 832                                         port->bulk_out_endpointAddress,
 833                                         USB_DIR_OUT, port,
 834                                         portdata->out_buffer[j],
 835                                         OUT_BUFLEN, option_outdat_callback);
 836                 }
 837         }
 838 }
 839
 840
 841 /** send RTS/DTR state to the port.
 842  *
 843  * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
 844  * CDC.
 845 */
 846 static int option_send_setup(struct tty_struct *tty,
 847                                                 struct usb_serial_port *port)
 848 {
 849         struct usb_serial *serial = port->serial;
 850         struct option_port_private *portdata;
 851         int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
 852         dbg("%s", __func__);
 853
 854         portdata = usb_get_serial_port_data(port);
 855
 856         if (tty) {
 857                 int val = 0;
 858                 if (portdata->dtr_state)
 859                         val |= 0x01;
 860                 if (portdata->rts_state)
 861                         val |= 0x02;
 862
 863                 return usb_control_msg(serial->dev,
 864                         usb_rcvctrlpipe(serial->dev, 0),
 865                         0x22, 0x21, val, ifNum, NULL, 0, USB_CTRL_SET_TIMEOUT);
 866         }
 867         return 0;
 868 }
 869
 870 static int option_startup(struct usb_serial *serial)
 871 {
 872         int i, j, err;
 873         struct usb_serial_port *port;
 874         struct option_port_private *portdata;
 875         u8 *buffer;
 876
 877         dbg("%s", __func__);
 878
 879         /* Now setup per port private data */
 880         for (i = 0; i < serial->num_ports; i++) {
 881                 port = serial->port[i];
 882                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
 883                 if (!portdata) {
 884                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
 885                                         __func__, i);
 886                         return 1;
 887                 }
 888
 889                 for (j = 0; j < N_IN_URB; j++) {
 890                         buffer = (u8 *)__get_free_page(GFP_KERNEL);
 891                         if (!buffer)
 892                                 goto bail_out_error;
 893                         portdata->in_buffer[j] = buffer;
 894                 }
 895
 896                 for (j = 0; j < N_OUT_URB; j++) {
 897                         buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
 898                         if (!buffer)
 899                                 goto bail_out_error2;
 900                         portdata->out_buffer[j] = buffer;
 901                 }
 902
 903                 usb_set_serial_port_data(port, portdata);
 904
 905                 if (!port->interrupt_in_urb)
 906                         continue;
 907                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 908                 if (err)
 909                         dbg("%s: submit irq_in urb failed %d",
 910                                 __func__, err);
 911         }
 912         option_setup_urbs(serial);
 913         return 0;
 914
 915 bail_out_error2:
 916         for (j = 0; j < N_OUT_URB; j++)
 917                 kfree(portdata->out_buffer[j]);
 918 bail_out_error:
 919         for (j = 0; j < N_IN_URB; j++)
 920                 if (portdata->in_buffer[j])
 921                         free_page((unsigned long)portdata->in_buffer[j]);
 922         kfree(portdata);
 923         return 1;
 924 }
 925
 926 static void option_shutdown(struct usb_serial *serial)
 927 {
 928         int i, j;
 929         struct usb_serial_port *port;
 930         struct option_port_private *portdata;
 931
 932         dbg("%s", __func__);
 933
 934         /* Stop reading/writing urbs */
 935         for (i = 0; i < serial->num_ports; ++i) {
 936                 port = serial->port[i];
 937                 portdata = usb_get_serial_port_data(port);
 938                 for (j = 0; j < N_IN_URB; j++)
 939                         usb_kill_urb(portdata->in_urbs[j]);
 940                 for (j = 0; j < N_OUT_URB; j++)
 941                         usb_kill_urb(portdata->out_urbs[j]);
 942         }
 943
 944         /* Now free them */
 945         for (i = 0; i < serial->num_ports; ++i) {
 946                 port = serial->port[i];
 947                 portdata = usb_get_serial_port_data(port);
 948
 949                 for (j = 0; j < N_IN_URB; j++) {
 950                         if (portdata->in_urbs[j]) {
 951                                 usb_free_urb(portdata->in_urbs[j]);
 952                                 free_page((unsigned long)
 953                                         portdata->in_buffer[j]);
 954                                 portdata->in_urbs[j] = NULL;
 955                         }
 956                 }
 957                 for (j = 0; j < N_OUT_URB; j++) {
 958                         if (portdata->out_urbs[j]) {
 959                                 usb_free_urb(portdata->out_urbs[j]);
 960                                 kfree(portdata->out_buffer[j]);
 961                                 portdata->out_urbs[j] = NULL;
 962                         }
 963                 }
 964         }
 965
 966         /* Now free per port private data */
 967         for (i = 0; i < serial->num_ports; i++) {
 968                 port = serial->port[i];
 969                 kfree(usb_get_serial_port_data(port));
 970         }
 971 }
 972
 973 MODULE_AUTHOR(DRIVER_AUTHOR);
 974 MODULE_DESCRIPTION(DRIVER_DESC);
 975 MODULE_VERSION(DRIVER_VERSION);
 976 MODULE_LICENSE("GPL");
 977
 978 module_param(debug, bool, S_IRUGO | S_IWUSR);
 979 MODULE_PARM_DESC(debug, "Debug messages");