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_E100A               0x6501
 177 #define ANYDATA_PRODUCT_ADU_500A                0x6502
 178
 179 #define AXESSTEL_VENDOR_ID                      0x1726
 180 #define AXESSTEL_PRODUCT_MV110H                 0x1000
 181
 182 #define ONDA_VENDOR_ID                          0x19d2
 183 #define ONDA_PRODUCT_MSA501HS                   0x0001
 184 #define ONDA_PRODUCT_ET502HS                    0x0002
 185
 186 #define BANDRICH_VENDOR_ID                      0x1A8D
 187 #define BANDRICH_PRODUCT_C100_1                 0x1002
 188 #define BANDRICH_PRODUCT_C100_2                 0x1003
 189
 190 #define AMOI_VENDOR_ID                  0x1614
 191 #define AMOI_PRODUCT_9508                       0x0800
 192
 193 #define QUALCOMM_VENDOR_ID                      0x05C6
 194
 195 #define MAXON_VENDOR_ID                         0x16d8
 196
 197 #define TELIT_VENDOR_ID                         0x1bc7
 198 #define TELIT_PRODUCT_UC864E                    0x1003
 199
 200 static struct usb_device_id option_ids[] = {
 201         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
 202         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
 203         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
 204         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD) },
 205         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD_LIGHT) },
 206         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS) },
 207         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_LIGHT) },
 208         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD) },
 209         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT) },
 210         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
 211         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA_BUS) },
 212         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER) },
 213         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER_BUS) },
 214         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX_READY) },
 215         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX) },
 216         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_LIGHT) },
 217         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_GT) },
 218         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_EX) },
 219         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_LIGHT) },
 220         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_GT) },
 221         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_EX) },
 222         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_MODEM) },
 223         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_NETWORK) },
 224         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_MODEM) },
 225         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_NETWORK) },
 226         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM) },
 227         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK) },
 228         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_LITE) },
 229         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) },
 230         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) },
 231         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_LITE) },
 232         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_GT) },
 233         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_EX) },
 234         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) },
 235         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_NETWORK) },
 236         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600, 0xff, 0xff, 0xff) },
 237         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220, 0xff, 0xff, 0xff) },
 238         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS, 0xff, 0xff, 0xff) },
 239         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1401, 0xff, 0xff, 0xff) },
 240         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1403, 0xff, 0xff, 0xff) },
 241         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1405, 0xff, 0xff, 0xff) },
 242         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1406, 0xff, 0xff, 0xff) },
 243         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1408, 0xff, 0xff, 0xff) },
 244         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1409, 0xff, 0xff, 0xff) },
 245         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1410, 0xff, 0xff, 0xff) },
 246         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1411, 0xff, 0xff, 0xff) },
 247         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1412, 0xff, 0xff, 0xff) },
 248         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1413, 0xff, 0xff, 0xff) },
 249         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1414, 0xff, 0xff, 0xff) },
 250         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1415, 0xff, 0xff, 0xff) },
 251         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1416, 0xff, 0xff, 0xff) },
 252         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1417, 0xff, 0xff, 0xff) },
 253         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1418, 0xff, 0xff, 0xff) },
 254         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1419, 0xff, 0xff, 0xff) },
 255         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_9508) },
 256         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */
 257         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */
 258         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) }, /* Novatel Merlin EX720/V740/X720 */
 259         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V720) }, /* Novatel Merlin V720/S720/PC720 */
 260         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U730) }, /* Novatel U730/U740 (VF version) */
 261         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U740) }, /* Novatel U740 */
 262         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U870) }, /* Novatel U870 */
 263         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_XU870) }, /* Novatel Merlin XU870 HSDPA/3G */
 264         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_X950D) }, /* Novatel X950D */
 265         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EV620) }, /* Novatel EV620/ES620 CDMA/EV-DO */
 266         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES720) }, /* Novatel ES620/ES720/U720/USB720 */
 267         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E725) }, /* Novatel E725/E726 */
 268         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES620) }, /* Novatel Merlin ES620 SM Bus */
 269         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU730) }, /* Novatel EU730 and Vodafone EU740 */
 270         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU740) }, /* Novatel non-Vodafone EU740 */
 271         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) }, /* Novatel EU850D/EU860D/EU870D */
 272         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) }, /* Novatel MC930D/MC950D */
 273         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) }, /* Novatel MC727/U727/USB727 */
 274         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_1) }, /* Novatel EVDO product */
 275         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_1) }, /* Novatel HSPA product */
 276         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_1) }, /* Novatel Embedded product */
 277         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_1) }, /* Novatel Global product */
 278         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_2) }, /* Novatel EVDO product */
 279         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_2) }, /* Novatel HSPA product */
 280         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_2) }, /* Novatel Embedded product */
 281         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_2) }, /* Novatel Global product */
 282
 283         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01) },
 284         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01A) },
 285         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H02) },
 286
 287         { USB_DEVICE(DELL_VENDOR_ID, 0x8114) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */
 288         { USB_DEVICE(DELL_VENDOR_ID, 0x8115) }, /* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 289         { USB_DEVICE(DELL_VENDOR_ID, 0x8116) }, /* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 290         { USB_DEVICE(DELL_VENDOR_ID, 0x8117) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO ExpressCard == Novatel Merlin XV620 CDMA/EV-DO */
 291         { USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard == Novatel Merlin XU870 HSDPA/3G */
 292         { USB_DEVICE(DELL_VENDOR_ID, 0x8128) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite E720 CDMA/EV-DO */
 293         { USB_DEVICE(DELL_VENDOR_ID, 0x8129) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite ET620 CDMA/EV-DO */
 294         { USB_DEVICE(DELL_VENDOR_ID, 0x8133) }, /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
 295         { USB_DEVICE(DELL_VENDOR_ID, 0x8136) }, /* Dell Wireless HSDPA 5520 == Novatel Expedite EU860D */
 296         { USB_DEVICE(DELL_VENDOR_ID, 0x8137) }, /* Dell Wireless HSDPA 5520 */
 297         { USB_DEVICE(DELL_VENDOR_ID, 0x8138) }, /* Dell Wireless 5520 Voda I Mobile Broadband (3G HSDPA) Minicard */
 298         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },
 299         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
 300         { USB_DEVICE(AXESSTEL_VENDOR_ID, AXESSTEL_PRODUCT_MV110H) },
 301         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_MSA501HS) },
 302         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_ET502HS) },
 303         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
 304         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
 305         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC650) },
 306         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
 307         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */
 308         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
 309         { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */
 310         { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864E) },
 311         { } /* Terminating entry */
 312 };
 313 MODULE_DEVICE_TABLE(usb, option_ids);
 314
 315 static struct usb_driver option_driver = {
 316         .name       = "option",
 317         .probe      = usb_serial_probe,
 318         .disconnect = usb_serial_disconnect,
 319         .id_table   = option_ids,
 320         .no_dynamic_id =        1,
 321 };
 322
 323 /* The card has three separate interfaces, which the serial driver
 324  * recognizes separately, thus num_port=1.
 325  */
 326
 327 static struct usb_serial_driver option_1port_device = {
 328         .driver = {
 329                 .owner =        THIS_MODULE,
 330                 .name =         "option1",
 331         },
 332         .description       = "GSM modem (1-port)",
 333         .usb_driver        = &option_driver,
 334         .id_table          = option_ids,
 335         .num_ports         = 1,
 336         .open              = option_open,
 337         .close             = option_close,
 338         .write             = option_write,
 339         .write_room        = option_write_room,
 340         .chars_in_buffer   = option_chars_in_buffer,
 341         .set_termios       = option_set_termios,
 342         .tiocmget          = option_tiocmget,
 343         .tiocmset          = option_tiocmset,
 344         .attach            = option_startup,
 345         .shutdown          = option_shutdown,
 346         .read_int_callback = option_instat_callback,
 347 };
 348
 349 #ifdef CONFIG_USB_DEBUG
 350 static int debug;
 351 #else
 352 #define debug 0
 353 #endif
 354
 355 /* per port private data */
 356
 357 #define N_IN_URB 4
 358 #define N_OUT_URB 1
 359 #define IN_BUFLEN 4096
 360 #define OUT_BUFLEN 128
 361
 362 struct option_port_private {
 363         /* Input endpoints and buffer for this port */
 364         struct urb *in_urbs[N_IN_URB];
 365         u8 *in_buffer[N_IN_URB];
 366         /* Output endpoints and buffer for this port */
 367         struct urb *out_urbs[N_OUT_URB];
 368         u8 *out_buffer[N_OUT_URB];
 369         unsigned long out_busy;         /* Bit vector of URBs in use */
 370
 371         /* Settings for the port */
 372         int rts_state;  /* Handshaking pins (outputs) */
 373         int dtr_state;
 374         int cts_state;  /* Handshaking pins (inputs) */
 375         int dsr_state;
 376         int dcd_state;
 377         int ri_state;
 378
 379         unsigned long tx_start_time[N_OUT_URB];
 380 };
 381
 382 /* Functions used by new usb-serial code. */
 383 static int __init option_init(void)
 384 {
 385         int retval;
 386         retval = usb_serial_register(&option_1port_device);
 387         if (retval)
 388                 goto failed_1port_device_register;
 389         retval = usb_register(&option_driver);
 390         if (retval)
 391                 goto failed_driver_register;
 392
 393         info(DRIVER_DESC ": " DRIVER_VERSION);
 394
 395         return 0;
 396
 397 failed_driver_register:
 398         usb_serial_deregister(&option_1port_device);
 399 failed_1port_device_register:
 400         return retval;
 401 }
 402
 403 static void __exit option_exit(void)
 404 {
 405         usb_deregister(&option_driver);
 406         usb_serial_deregister(&option_1port_device);
 407 }
 408
 409 module_init(option_init);
 410 module_exit(option_exit);
 411
 412 static void option_set_termios(struct tty_struct *tty,
 413                 struct usb_serial_port *port, struct ktermios *old_termios)
 414 {
 415         dbg("%s", __func__);
 416         /* Doesn't support option setting */
 417         tty_termios_copy_hw(tty->termios, old_termios);
 418         option_send_setup(tty, port);
 419 }
 420
 421 static int option_tiocmget(struct tty_struct *tty, struct file *file)
 422 {
 423         struct usb_serial_port *port = tty->driver_data;
 424         unsigned int value;
 425         struct option_port_private *portdata;
 426
 427         portdata = usb_get_serial_port_data(port);
 428
 429         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
 430                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
 431                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
 432                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
 433                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
 434                 ((portdata->ri_state) ? TIOCM_RNG : 0);
 435
 436         return value;
 437 }
 438
 439 static int option_tiocmset(struct tty_struct *tty, struct file *file,
 440                         unsigned int set, unsigned int clear)
 441 {
 442         struct usb_serial_port *port = tty->driver_data;
 443         struct option_port_private *portdata;
 444
 445         portdata = usb_get_serial_port_data(port);
 446
 447         /* FIXME: what locks portdata fields ? */
 448         if (set & TIOCM_RTS)
 449                 portdata->rts_state = 1;
 450         if (set & TIOCM_DTR)
 451                 portdata->dtr_state = 1;
 452
 453         if (clear & TIOCM_RTS)
 454                 portdata->rts_state = 0;
 455         if (clear & TIOCM_DTR)
 456                 portdata->dtr_state = 0;
 457         return option_send_setup(tty, port);
 458 }
 459
 460 /* Write */
 461 static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
 462                         const unsigned char *buf, int count)
 463 {
 464         struct option_port_private *portdata;
 465         int i;
 466         int left, todo;
 467         struct urb *this_urb = NULL; /* spurious */
 468         int err;
 469
 470         portdata = usb_get_serial_port_data(port);
 471
 472         dbg("%s: write (%d chars)", __func__, count);
 473
 474         i = 0;
 475         left = count;
 476         for (i = 0; left > 0 && i < N_OUT_URB; i++) {
 477                 todo = left;
 478                 if (todo > OUT_BUFLEN)
 479                         todo = OUT_BUFLEN;
 480
 481                 this_urb = portdata->out_urbs[i];
 482                 if (test_and_set_bit(i, &portdata->out_busy)) {
 483                         if (time_before(jiffies,
 484                                         portdata->tx_start_time[i] + 10 * HZ))
 485                                 continue;
 486                         usb_unlink_urb(this_urb);
 487                         continue;
 488                 }
 489                 if (this_urb->status != 0)
 490                         dbg("usb_write %p failed (err=%d)",
 491                                 this_urb, this_urb->status);
 492
 493                 dbg("%s: endpoint %d buf %d", __func__,
 494                         usb_pipeendpoint(this_urb->pipe), i);
 495
 496                 /* send the data */
 497                 memcpy(this_urb->transfer_buffer, buf, todo);
 498                 this_urb->transfer_buffer_length = todo;
 499
 500                 this_urb->dev = port->serial->dev;
 501                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 502                 if (err) {
 503                         dbg("usb_submit_urb %p (write bulk) failed "
 504                                 "(%d, has %d)", this_urb,
 505                                 err, this_urb->status);
 506                         clear_bit(i, &portdata->out_busy);
 507                         continue;
 508                 }
 509                 portdata->tx_start_time[i] = jiffies;
 510                 buf += todo;
 511                 left -= todo;
 512         }
 513
 514         count -= left;
 515         dbg("%s: wrote (did %d)", __func__, count);
 516         return count;
 517 }
 518
 519 static void option_indat_callback(struct urb *urb)
 520 {
 521         int err;
 522         int endpoint;
 523         struct usb_serial_port *port;
 524         struct tty_struct *tty;
 525         unsigned char *data = urb->transfer_buffer;
 526         int status = urb->status;
 527
 528         dbg("%s: %p", __func__, urb);
 529
 530         endpoint = usb_pipeendpoint(urb->pipe);
 531         port =  urb->context;
 532
 533         if (status) {
 534                 dbg("%s: nonzero status: %d on endpoint %02x.",
 535                     __func__, status, endpoint);
 536         } else {
 537                 tty = port->port.tty;
 538                 if (urb->actual_length) {
 539                         tty_buffer_request_room(tty, urb->actual_length);
 540                         tty_insert_flip_string(tty, data, urb->actual_length);
 541                         tty_flip_buffer_push(tty);
 542                 } else {
 543                         dbg("%s: empty read urb received", __func__);
 544                 }
 545
 546                 /* Resubmit urb so we continue receiving */
 547                 if (port->port.count && status != -ESHUTDOWN) {
 548                         err = usb_submit_urb(urb, GFP_ATOMIC);
 549                         if (err)
 550                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 551                                         "(%d)", __func__, err);
 552                 }
 553         }
 554         return;
 555 }
 556
 557 static void option_outdat_callback(struct urb *urb)
 558 {
 559         struct usb_serial_port *port;
 560         struct option_port_private *portdata;
 561         int i;
 562
 563         dbg("%s", __func__);
 564
 565         port =  urb->context;
 566
 567         usb_serial_port_softint(port);
 568
 569         portdata = usb_get_serial_port_data(port);
 570         for (i = 0; i < N_OUT_URB; ++i) {
 571                 if (portdata->out_urbs[i] == urb) {
 572                         smp_mb__before_clear_bit();
 573                         clear_bit(i, &portdata->out_busy);
 574                         break;
 575                 }
 576         }
 577 }
 578
 579 static void option_instat_callback(struct urb *urb)
 580 {
 581         int err;
 582         int status = urb->status;
 583         struct usb_serial_port *port =  urb->context;
 584         struct option_port_private *portdata = usb_get_serial_port_data(port);
 585         struct usb_serial *serial = port->serial;
 586
 587         dbg("%s", __func__);
 588         dbg("%s: urb %p port %p has data %p", __func__, urb, port, portdata);
 589
 590         if (status == 0) {
 591                 struct usb_ctrlrequest *req_pkt =
 592                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 593
 594                 if (!req_pkt) {
 595                         dbg("%s: NULL req_pkt\n", __func__);
 596                         return;
 597                 }
 598                 if ((req_pkt->bRequestType == 0xA1) &&
 599                                 (req_pkt->bRequest == 0x20)) {
 600                         int old_dcd_state;
 601                         unsigned char signals = *((unsigned char *)
 602                                         urb->transfer_buffer +
 603                                         sizeof(struct usb_ctrlrequest));
 604
 605                         dbg("%s: signal x%x", __func__, signals);
 606
 607                         old_dcd_state = portdata->dcd_state;
 608                         portdata->cts_state = 1;
 609                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 610                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 611                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 612
 613                         if (port->port.tty && !C_CLOCAL(port->port.tty) &&
 614                                         old_dcd_state && !portdata->dcd_state)
 615                                 tty_hangup(port->port.tty);
 616                 } else {
 617                         dbg("%s: type %x req %x", __func__,
 618                                 req_pkt->bRequestType, req_pkt->bRequest);
 619                 }
 620         } else
 621                 dbg("%s: error %d", __func__, status);
 622
 623         /* Resubmit urb so we continue receiving IRQ data */
 624         if (status != -ESHUTDOWN) {
 625                 urb->dev = serial->dev;
 626                 err = usb_submit_urb(urb, GFP_ATOMIC);
 627                 if (err)
 628                         dbg("%s: resubmit intr urb failed. (%d)",
 629                                 __func__, err);
 630         }
 631 }
 632
 633 static int option_write_room(struct tty_struct *tty)
 634 {
 635         struct usb_serial_port *port = tty->driver_data;
 636         struct option_port_private *portdata;
 637         int i;
 638         int data_len = 0;
 639         struct urb *this_urb;
 640
 641         portdata = usb_get_serial_port_data(port);
 642
 643
 644         for (i = 0; i < N_OUT_URB; i++) {
 645                 this_urb = portdata->out_urbs[i];
 646                 if (this_urb && !test_bit(i, &portdata->out_busy))
 647                         data_len += OUT_BUFLEN;
 648         }
 649
 650         dbg("%s: %d", __func__, data_len);
 651         return data_len;
 652 }
 653
 654 static int option_chars_in_buffer(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         for (i = 0; i < N_OUT_URB; i++) {
 665                 this_urb = portdata->out_urbs[i];
 666                 /* FIXME: This locking is insufficient as this_urb may
 667                    go unused during the test */
 668                 if (this_urb && test_bit(i, &portdata->out_busy))
 669                         data_len += this_urb->transfer_buffer_length;
 670         }
 671         dbg("%s: %d", __func__, data_len);
 672         return data_len;
 673 }
 674
 675 static int option_open(struct tty_struct *tty,
 676                         struct usb_serial_port *port, struct file *filp)
 677 {
 678         struct option_port_private *portdata;
 679         struct usb_serial *serial = port->serial;
 680         int i, err;
 681         struct urb *urb;
 682
 683         portdata = usb_get_serial_port_data(port);
 684
 685         dbg("%s", __func__);
 686
 687         /* Set some sane defaults */
 688         portdata->rts_state = 1;
 689         portdata->dtr_state = 1;
 690
 691         /* Reset low level data toggle and start reading from endpoints */
 692         for (i = 0; i < N_IN_URB; i++) {
 693                 urb = portdata->in_urbs[i];
 694                 if (!urb)
 695                         continue;
 696                 if (urb->dev != serial->dev) {
 697                         dbg("%s: dev %p != %p", __func__,
 698                                 urb->dev, serial->dev);
 699                         continue;
 700                 }
 701
 702                 /*
 703                  * make sure endpoint data toggle is synchronized with the
 704                  * device
 705                  */
 706                 usb_clear_halt(urb->dev, urb->pipe);
 707
 708                 err = usb_submit_urb(urb, GFP_KERNEL);
 709                 if (err) {
 710                         dbg("%s: submit urb %d failed (%d) %d",
 711                                 __func__, i, err,
 712                                 urb->transfer_buffer_length);
 713                 }
 714         }
 715
 716         /* Reset low level data toggle on out endpoints */
 717         for (i = 0; i < N_OUT_URB; i++) {
 718                 urb = portdata->out_urbs[i];
 719                 if (!urb)
 720                         continue;
 721                 urb->dev = serial->dev;
 722                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 723                                 usb_pipeout(urb->pipe), 0); */
 724         }
 725
 726         if (tty)
 727                 tty->low_latency = 1;
 728
 729         option_send_setup(tty, port);
 730
 731         return 0;
 732 }
 733
 734 static void option_close(struct tty_struct *tty,
 735                         struct usb_serial_port *port, struct file *filp)
 736 {
 737         int i;
 738         struct usb_serial *serial = port->serial;
 739         struct option_port_private *portdata;
 740
 741         dbg("%s", __func__);
 742         portdata = usb_get_serial_port_data(port);
 743
 744         portdata->rts_state = 0;
 745         portdata->dtr_state = 0;
 746
 747         if (serial->dev) {
 748                 mutex_lock(&serial->disc_mutex);
 749                 if (!serial->disconnected)
 750                         option_send_setup(tty, port);
 751                 mutex_unlock(&serial->disc_mutex);
 752
 753                 /* Stop reading/writing urbs */
 754                 for (i = 0; i < N_IN_URB; i++)
 755                         usb_kill_urb(portdata->in_urbs[i]);
 756                 for (i = 0; i < N_OUT_URB; i++)
 757                         usb_kill_urb(portdata->out_urbs[i]);
 758         }
 759         port->port.tty = NULL;  /* FIXME */
 760 }
 761
 762 /* Helper functions used by option_setup_urbs */
 763 static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
 764                 int dir, void *ctx, char *buf, int len,
 765                 void (*callback)(struct urb *))
 766 {
 767         struct urb *urb;
 768
 769         if (endpoint == -1)
 770                 return NULL;            /* endpoint not needed */
 771
 772         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 773         if (urb == NULL) {
 774                 dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
 775                 return NULL;
 776         }
 777
 778                 /* Fill URB using supplied data. */
 779         usb_fill_bulk_urb(urb, serial->dev,
 780                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 781                       buf, len, callback, ctx);
 782
 783         return urb;
 784 }
 785
 786 /* Setup urbs */
 787 static void option_setup_urbs(struct usb_serial *serial)
 788 {
 789         int i, j;
 790         struct usb_serial_port *port;
 791         struct option_port_private *portdata;
 792
 793         dbg("%s", __func__);
 794
 795         for (i = 0; i < serial->num_ports; i++) {
 796                 port = serial->port[i];
 797                 portdata = usb_get_serial_port_data(port);
 798
 799                 /* Do indat endpoints first */
 800                 for (j = 0; j < N_IN_URB; ++j) {
 801                         portdata->in_urbs[j] = option_setup_urb(serial,
 802                                         port->bulk_in_endpointAddress,
 803                                         USB_DIR_IN, port,
 804                                         portdata->in_buffer[j],
 805                                         IN_BUFLEN, option_indat_callback);
 806                 }
 807
 808                 /* outdat endpoints */
 809                 for (j = 0; j < N_OUT_URB; ++j) {
 810                         portdata->out_urbs[j] = option_setup_urb(serial,
 811                                         port->bulk_out_endpointAddress,
 812                                         USB_DIR_OUT, port,
 813                                         portdata->out_buffer[j],
 814                                         OUT_BUFLEN, option_outdat_callback);
 815                 }
 816         }
 817 }
 818
 819
 820 /** send RTS/DTR state to the port.
 821  *
 822  * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
 823  * CDC.
 824 */
 825 static int option_send_setup(struct tty_struct *tty,
 826                                                 struct usb_serial_port *port)
 827 {
 828         struct usb_serial *serial = port->serial;
 829         struct option_port_private *portdata;
 830         int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
 831         dbg("%s", __func__);
 832
 833         portdata = usb_get_serial_port_data(port);
 834
 835         if (tty) {
 836                 int val = 0;
 837                 if (portdata->dtr_state)
 838                         val |= 0x01;
 839                 if (portdata->rts_state)
 840                         val |= 0x02;
 841
 842                 return usb_control_msg(serial->dev,
 843                         usb_rcvctrlpipe(serial->dev, 0),
 844                         0x22, 0x21, val, ifNum, NULL, 0, USB_CTRL_SET_TIMEOUT);
 845         }
 846         return 0;
 847 }
 848
 849 static int option_startup(struct usb_serial *serial)
 850 {
 851         int i, j, err;
 852         struct usb_serial_port *port;
 853         struct option_port_private *portdata;
 854         u8 *buffer;
 855
 856         dbg("%s", __func__);
 857
 858         /* Now setup per port private data */
 859         for (i = 0; i < serial->num_ports; i++) {
 860                 port = serial->port[i];
 861                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
 862                 if (!portdata) {
 863                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
 864                                         __func__, i);
 865                         return 1;
 866                 }
 867
 868                 for (j = 0; j < N_IN_URB; j++) {
 869                         buffer = (u8 *)__get_free_page(GFP_KERNEL);
 870                         if (!buffer)
 871                                 goto bail_out_error;
 872                         portdata->in_buffer[j] = buffer;
 873                 }
 874
 875                 for (j = 0; j < N_OUT_URB; j++) {
 876                         buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
 877                         if (!buffer)
 878                                 goto bail_out_error2;
 879                         portdata->out_buffer[j] = buffer;
 880                 }
 881
 882                 usb_set_serial_port_data(port, portdata);
 883
 884                 if (!port->interrupt_in_urb)
 885                         continue;
 886                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 887                 if (err)
 888                         dbg("%s: submit irq_in urb failed %d",
 889                                 __func__, err);
 890         }
 891         option_setup_urbs(serial);
 892         return 0;
 893
 894 bail_out_error2:
 895         for (j = 0; j < N_OUT_URB; j++)
 896                 kfree(portdata->out_buffer[j]);
 897 bail_out_error:
 898         for (j = 0; j < N_IN_URB; j++)
 899                 if (portdata->in_buffer[j])
 900                         free_page((unsigned long)portdata->in_buffer[j]);
 901         kfree(portdata);
 902         return 1;
 903 }
 904
 905 static void option_shutdown(struct usb_serial *serial)
 906 {
 907         int i, j;
 908         struct usb_serial_port *port;
 909         struct option_port_private *portdata;
 910
 911         dbg("%s", __func__);
 912
 913         /* Stop reading/writing urbs */
 914         for (i = 0; i < serial->num_ports; ++i) {
 915                 port = serial->port[i];
 916                 portdata = usb_get_serial_port_data(port);
 917                 for (j = 0; j < N_IN_URB; j++)
 918                         usb_kill_urb(portdata->in_urbs[j]);
 919                 for (j = 0; j < N_OUT_URB; j++)
 920                         usb_kill_urb(portdata->out_urbs[j]);
 921         }
 922
 923         /* Now free them */
 924         for (i = 0; i < serial->num_ports; ++i) {
 925                 port = serial->port[i];
 926                 portdata = usb_get_serial_port_data(port);
 927
 928                 for (j = 0; j < N_IN_URB; j++) {
 929                         if (portdata->in_urbs[j]) {
 930                                 usb_free_urb(portdata->in_urbs[j]);
 931                                 free_page((unsigned long)
 932                                         portdata->in_buffer[j]);
 933                                 portdata->in_urbs[j] = NULL;
 934                         }
 935                 }
 936                 for (j = 0; j < N_OUT_URB; j++) {
 937                         if (portdata->out_urbs[j]) {
 938                                 usb_free_urb(portdata->out_urbs[j]);
 939                                 kfree(portdata->out_buffer[j]);
 940                                 portdata->out_urbs[j] = NULL;
 941                         }
 942                 }
 943         }
 944
 945         /* Now free per port private data */
 946         for (i = 0; i < serial->num_ports; i++) {
 947                 port = serial->port[i];
 948                 kfree(usb_get_serial_port_data(port));
 949         }
 950 }
 951
 952 MODULE_AUTHOR(DRIVER_AUTHOR);
 953 MODULE_DESCRIPTION(DRIVER_DESC);
 954 MODULE_VERSION(DRIVER_VERSION);
 955 MODULE_LICENSE("GPL");
 956
 957 #ifdef CONFIG_USB_DEBUG
 958 module_param(debug, bool, S_IRUGO | S_IWUSR);
 959 MODULE_PARM_DESC(debug, "Debug messages");
 960 #endif
 961