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, struct file *filp);
  47 static void option_close(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp);
  48 static int  option_startup(struct usb_serial *serial);
  49 static void option_shutdown(struct usb_serial *serial);
  50 static int  option_write_room(struct tty_struct *tty);
  51
  52 static void option_instat_callback(struct urb *urb);
  53
  54 static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
  55                         const unsigned char *buf, int count);
  56 static int  option_chars_in_buffer(struct tty_struct *tty);
  57 static void option_set_termios(struct tty_struct *tty,
  58                         struct usb_serial_port *port, struct ktermios *old);
  59 static int  option_tiocmget(struct tty_struct *tty, struct file *file);
  60 static int  option_tiocmset(struct tty_struct *tty, struct file *file,
  61                                 unsigned int set, unsigned int clear);
  62 static int  option_send_setup(struct tty_struct *tty, struct usb_serial_port *port);
  63
  64 /* Vendor and product IDs */
  65 #define OPTION_VENDOR_ID                        0x0AF0
  66 #define OPTION_PRODUCT_COLT                     0x5000
  67 #define OPTION_PRODUCT_RICOLA                   0x6000
  68 #define OPTION_PRODUCT_RICOLA_LIGHT             0x6100
  69 #define OPTION_PRODUCT_RICOLA_QUAD              0x6200
  70 #define OPTION_PRODUCT_RICOLA_QUAD_LIGHT        0x6300
  71 #define OPTION_PRODUCT_RICOLA_NDIS              0x6050
  72 #define OPTION_PRODUCT_RICOLA_NDIS_LIGHT        0x6150
  73 #define OPTION_PRODUCT_RICOLA_NDIS_QUAD         0x6250
  74 #define OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT   0x6350
  75 #define OPTION_PRODUCT_COBRA                    0x6500
  76 #define OPTION_PRODUCT_COBRA_BUS                0x6501
  77 #define OPTION_PRODUCT_VIPER                    0x6600
  78 #define OPTION_PRODUCT_VIPER_BUS                0x6601
  79 #define OPTION_PRODUCT_GT_MAX_READY             0x6701
  80 #define OPTION_PRODUCT_GT_MAX                   0x6711
  81 #define OPTION_PRODUCT_FUJI_MODEM_LIGHT         0x6721
  82 #define OPTION_PRODUCT_FUJI_MODEM_GT            0x6741
  83 #define OPTION_PRODUCT_FUJI_MODEM_EX            0x6761
  84 #define OPTION_PRODUCT_FUJI_NETWORK_LIGHT       0x6731
  85 #define OPTION_PRODUCT_FUJI_NETWORK_GT          0x6751
  86 #define OPTION_PRODUCT_FUJI_NETWORK_EX          0x6771
  87 #define OPTION_PRODUCT_KOI_MODEM                0x6800
  88 #define OPTION_PRODUCT_KOI_NETWORK              0x6811
  89 #define OPTION_PRODUCT_SCORPION_MODEM           0x6901
  90 #define OPTION_PRODUCT_SCORPION_NETWORK         0x6911
  91 #define OPTION_PRODUCT_ETNA_MODEM               0x7001
  92 #define OPTION_PRODUCT_ETNA_NETWORK             0x7011
  93 #define OPTION_PRODUCT_ETNA_MODEM_LITE          0x7021
  94 #define OPTION_PRODUCT_ETNA_MODEM_GT            0x7041
  95 #define OPTION_PRODUCT_ETNA_MODEM_EX            0x7061
  96 #define OPTION_PRODUCT_ETNA_NETWORK_LITE        0x7031
  97 #define OPTION_PRODUCT_ETNA_NETWORK_GT          0x7051
  98 #define OPTION_PRODUCT_ETNA_NETWORK_EX          0x7071
  99 #define OPTION_PRODUCT_ETNA_KOI_MODEM           0x7100
 100 #define OPTION_PRODUCT_ETNA_KOI_NETWORK         0x7111
 101
 102 #define HUAWEI_VENDOR_ID                        0x12D1
 103 #define HUAWEI_PRODUCT_E600                     0x1001
 104 #define HUAWEI_PRODUCT_E220                     0x1003
 105 #define HUAWEI_PRODUCT_E220BIS                  0x1004
 106 #define HUAWEI_PRODUCT_E1401                    0x1401
 107 #define HUAWEI_PRODUCT_E1403                    0x1403
 108 #define HUAWEI_PRODUCT_E1405                    0x1405
 109 #define HUAWEI_PRODUCT_E1406                    0x1406
 110 #define HUAWEI_PRODUCT_E1408                    0x1408
 111 #define HUAWEI_PRODUCT_E1409                    0x1409
 112 #define HUAWEI_PRODUCT_E1410                    0x1410
 113 #define HUAWEI_PRODUCT_E1411                    0x1411
 114 #define HUAWEI_PRODUCT_E1412                    0x1412
 115 #define HUAWEI_PRODUCT_E1413                    0x1413
 116 #define HUAWEI_PRODUCT_E1414                    0x1414
 117 #define HUAWEI_PRODUCT_E1415                    0x1415
 118 #define HUAWEI_PRODUCT_E1416                    0x1416
 119 #define HUAWEI_PRODUCT_E1417                    0x1417
 120 #define HUAWEI_PRODUCT_E1418                    0x1418
 121 #define HUAWEI_PRODUCT_E1419                    0x1419
 122
 123 #define NOVATELWIRELESS_VENDOR_ID               0x1410
 124
 125 /* MERLIN EVDO PRODUCTS */
 126 #define NOVATELWIRELESS_PRODUCT_V640            0x1100
 127 #define NOVATELWIRELESS_PRODUCT_V620            0x1110
 128 #define NOVATELWIRELESS_PRODUCT_V740            0x1120
 129 #define NOVATELWIRELESS_PRODUCT_V720            0x1130
 130
 131 /* MERLIN HSDPA/HSPA PRODUCTS */
 132 #define NOVATELWIRELESS_PRODUCT_U730            0x1400
 133 #define NOVATELWIRELESS_PRODUCT_U740            0x1410
 134 #define NOVATELWIRELESS_PRODUCT_U870            0x1420
 135 #define NOVATELWIRELESS_PRODUCT_XU870           0x1430
 136 #define NOVATELWIRELESS_PRODUCT_X950D           0x1450
 137
 138 /* EXPEDITE PRODUCTS */
 139 #define NOVATELWIRELESS_PRODUCT_EV620           0x2100
 140 #define NOVATELWIRELESS_PRODUCT_ES720           0x2110
 141 #define NOVATELWIRELESS_PRODUCT_E725            0x2120
 142 #define NOVATELWIRELESS_PRODUCT_ES620           0x2130
 143 #define NOVATELWIRELESS_PRODUCT_EU730           0x2400
 144 #define NOVATELWIRELESS_PRODUCT_EU740           0x2410
 145 #define NOVATELWIRELESS_PRODUCT_EU870D          0x2420
 146
 147 /* OVATION PRODUCTS */
 148 #define NOVATELWIRELESS_PRODUCT_MC727           0x4100
 149 #define NOVATELWIRELESS_PRODUCT_MC950D          0x4400
 150
 151 /* FUTURE NOVATEL PRODUCTS */
 152 #define NOVATELWIRELESS_PRODUCT_EVDO_1          0x6000
 153 #define NOVATELWIRELESS_PRODUCT_HSPA_1          0x7000
 154 #define NOVATELWIRELESS_PRODUCT_EMBEDDED_1      0x8000
 155 #define NOVATELWIRELESS_PRODUCT_GLOBAL_1        0x9000
 156 #define NOVATELWIRELESS_PRODUCT_EVDO_2          0x6001
 157 #define NOVATELWIRELESS_PRODUCT_HSPA_2          0x7001
 158 #define NOVATELWIRELESS_PRODUCT_EMBEDDED_2      0x8001
 159 #define NOVATELWIRELESS_PRODUCT_GLOBAL_2        0x9001
 160
 161 /* AMOI PRODUCTS */
 162 #define AMOI_VENDOR_ID                          0x1614
 163 #define AMOI_PRODUCT_H01                        0x0800
 164 #define AMOI_PRODUCT_H01A                       0x7002
 165 #define AMOI_PRODUCT_H02                        0x0802
 166
 167 #define DELL_VENDOR_ID                          0x413C
 168
 169 #define KYOCERA_VENDOR_ID                       0x0c88
 170 #define KYOCERA_PRODUCT_KPC650                  0x17da
 171 #define KYOCERA_PRODUCT_KPC680                  0x180a
 172
 173 #define ANYDATA_VENDOR_ID                       0x16d5
 174 #define ANYDATA_PRODUCT_ADU_E100A               0x6501
 175 #define ANYDATA_PRODUCT_ADU_500A                0x6502
 176
 177 #define AXESSTEL_VENDOR_ID                      0x1726
 178 #define AXESSTEL_PRODUCT_MV110H                 0x1000
 179
 180 #define ONDA_VENDOR_ID                          0x19d2
 181 #define ONDA_PRODUCT_MSA501HS                   0x0001
 182 #define ONDA_PRODUCT_ET502HS                    0x0002
 183
 184 #define BANDRICH_VENDOR_ID                      0x1A8D
 185 #define BANDRICH_PRODUCT_C100_1                 0x1002
 186 #define BANDRICH_PRODUCT_C100_2                 0x1003
 187
 188 #define AMOI_VENDOR_ID                  0x1614
 189 #define AMOI_PRODUCT_9508                       0x0800
 190
 191 #define QUALCOMM_VENDOR_ID                      0x05C6
 192
 193 #define MAXON_VENDOR_ID                         0x16d8
 194
 195 #define TELIT_VENDOR_ID                         0x1bc7
 196 #define TELIT_PRODUCT_UC864E                    0x1003
 197
 198 static struct usb_device_id option_ids[] = {
 199         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
 200         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
 201         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
 202         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD) },
 203         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD_LIGHT) },
 204         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS) },
 205         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_LIGHT) },
 206         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD) },
 207         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT) },
 208         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
 209         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA_BUS) },
 210         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER) },
 211         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER_BUS) },
 212         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX_READY) },
 213         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX) },
 214         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_LIGHT) },
 215         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_GT) },
 216         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_EX) },
 217         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_LIGHT) },
 218         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_GT) },
 219         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_EX) },
 220         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_MODEM) },
 221         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_NETWORK) },
 222         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_MODEM) },
 223         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_NETWORK) },
 224         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM) },
 225         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK) },
 226         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_LITE) },
 227         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) },
 228         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) },
 229         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_LITE) },
 230         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_GT) },
 231         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_EX) },
 232         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) },
 233         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_NETWORK) },
 234         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600, 0xff, 0xff, 0xff) },
 235         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220, 0xff, 0xff, 0xff) },
 236         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS, 0xff, 0xff, 0xff) },
 237         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1401, 0xff, 0xff, 0xff) },
 238         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1403, 0xff, 0xff, 0xff) },
 239         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1405, 0xff, 0xff, 0xff) },
 240         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1406, 0xff, 0xff, 0xff) },
 241         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1408, 0xff, 0xff, 0xff) },
 242         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1409, 0xff, 0xff, 0xff) },
 243         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1410, 0xff, 0xff, 0xff) },
 244         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1411, 0xff, 0xff, 0xff) },
 245         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1412, 0xff, 0xff, 0xff) },
 246         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1413, 0xff, 0xff, 0xff) },
 247         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1414, 0xff, 0xff, 0xff) },
 248         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1415, 0xff, 0xff, 0xff) },
 249         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1416, 0xff, 0xff, 0xff) },
 250         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1417, 0xff, 0xff, 0xff) },
 251         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1418, 0xff, 0xff, 0xff) },
 252         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1419, 0xff, 0xff, 0xff) },
 253         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_9508) },
 254         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */
 255         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */
 256         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) }, /* Novatel Merlin EX720/V740/X720 */
 257         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V720) }, /* Novatel Merlin V720/S720/PC720 */
 258         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U730) }, /* Novatel U730/U740 (VF version) */
 259         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U740) }, /* Novatel U740 */
 260         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U870) }, /* Novatel U870 */
 261         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_XU870) }, /* Novatel Merlin XU870 HSDPA/3G */
 262         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_X950D) }, /* Novatel X950D */
 263         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EV620) }, /* Novatel EV620/ES620 CDMA/EV-DO */
 264         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES720) }, /* Novatel ES620/ES720/U720/USB720 */
 265         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E725) }, /* Novatel E725/E726 */
 266         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES620) }, /* Novatel Merlin ES620 SM Bus */
 267         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU730) }, /* Novatel EU730 and Vodafone EU740 */
 268         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU740) }, /* Novatel non-Vodafone EU740 */
 269         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) }, /* Novatel EU850D/EU860D/EU870D */
 270         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) }, /* Novatel MC930D/MC950D */
 271         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) }, /* Novatel MC727/U727/USB727 */
 272         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_1) }, /* Novatel EVDO product */
 273         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_1) }, /* Novatel HSPA product */
 274         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_1) }, /* Novatel Embedded product */
 275         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_1) }, /* Novatel Global product */
 276         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_2) }, /* Novatel EVDO product */
 277         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_2) }, /* Novatel HSPA product */
 278         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_2) }, /* Novatel Embedded product */
 279         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_2) }, /* Novatel Global product */
 280
 281         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01) },
 282         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01A) },
 283         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H02) },
 284
 285         { USB_DEVICE(DELL_VENDOR_ID, 0x8114) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */
 286         { USB_DEVICE(DELL_VENDOR_ID, 0x8115) }, /* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 287         { USB_DEVICE(DELL_VENDOR_ID, 0x8116) }, /* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 288         { USB_DEVICE(DELL_VENDOR_ID, 0x8117) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO ExpressCard == Novatel Merlin XV620 CDMA/EV-DO */
 289         { USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard == Novatel Merlin XU870 HSDPA/3G */
 290         { USB_DEVICE(DELL_VENDOR_ID, 0x8128) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite E720 CDMA/EV-DO */
 291         { USB_DEVICE(DELL_VENDOR_ID, 0x8129) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite ET620 CDMA/EV-DO */
 292         { USB_DEVICE(DELL_VENDOR_ID, 0x8133) }, /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
 293         { USB_DEVICE(DELL_VENDOR_ID, 0x8136) }, /* Dell Wireless HSDPA 5520 == Novatel Expedite EU860D */
 294         { USB_DEVICE(DELL_VENDOR_ID, 0x8137) }, /* Dell Wireless HSDPA 5520 */
 295         { USB_DEVICE(DELL_VENDOR_ID, 0x8138) }, /* Dell Wireless 5520 Voda I Mobile Broadband (3G HSDPA) Minicard */
 296         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },
 297         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
 298         { USB_DEVICE(AXESSTEL_VENDOR_ID, AXESSTEL_PRODUCT_MV110H) },
 299         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_MSA501HS) },
 300         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_ET502HS) },
 301         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
 302         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
 303         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC650) },
 304         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
 305         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */
 306         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
 307         { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */
 308         { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864E) },
 309         { } /* Terminating entry */
 310 };
 311 MODULE_DEVICE_TABLE(usb, option_ids);
 312
 313 static struct usb_driver option_driver = {
 314         .name       = "option",
 315         .probe      = usb_serial_probe,
 316         .disconnect = usb_serial_disconnect,
 317         .id_table   = option_ids,
 318         .no_dynamic_id =        1,
 319 };
 320
 321 /* The card has three separate interfaces, which the serial driver
 322  * recognizes separately, thus num_port=1.
 323  */
 324
 325 static struct usb_serial_driver option_1port_device = {
 326         .driver = {
 327                 .owner =        THIS_MODULE,
 328                 .name =         "option1",
 329         },
 330         .description       = "GSM modem (1-port)",
 331         .usb_driver        = &option_driver,
 332         .id_table          = option_ids,
 333         .num_ports         = 1,
 334         .open              = option_open,
 335         .close             = option_close,
 336         .write             = option_write,
 337         .write_room        = option_write_room,
 338         .chars_in_buffer   = option_chars_in_buffer,
 339         .set_termios       = option_set_termios,
 340         .tiocmget          = option_tiocmget,
 341         .tiocmset          = option_tiocmset,
 342         .attach            = option_startup,
 343         .shutdown          = option_shutdown,
 344         .read_int_callback = option_instat_callback,
 345 };
 346
 347 #ifdef CONFIG_USB_DEBUG
 348 static int debug;
 349 #else
 350 #define debug 0
 351 #endif
 352
 353 /* per port private data */
 354
 355 #define N_IN_URB 4
 356 #define N_OUT_URB 1
 357 #define IN_BUFLEN 4096
 358 #define OUT_BUFLEN 128
 359
 360 struct option_port_private {
 361         /* Input endpoints and buffer for this port */
 362         struct urb *in_urbs[N_IN_URB];
 363         u8 *in_buffer[N_IN_URB];
 364         /* Output endpoints and buffer for this port */
 365         struct urb *out_urbs[N_OUT_URB];
 366         u8 *out_buffer[N_OUT_URB];
 367         unsigned long out_busy;         /* Bit vector of URBs in use */
 368
 369         /* Settings for the port */
 370         int rts_state;  /* Handshaking pins (outputs) */
 371         int dtr_state;
 372         int cts_state;  /* Handshaking pins (inputs) */
 373         int dsr_state;
 374         int dcd_state;
 375         int ri_state;
 376
 377         unsigned long tx_start_time[N_OUT_URB];
 378 };
 379
 380 /* Functions used by new usb-serial code. */
 381 static int __init option_init(void)
 382 {
 383         int retval;
 384         retval = usb_serial_register(&option_1port_device);
 385         if (retval)
 386                 goto failed_1port_device_register;
 387         retval = usb_register(&option_driver);
 388         if (retval)
 389                 goto failed_driver_register;
 390
 391         info(DRIVER_DESC ": " DRIVER_VERSION);
 392
 393         return 0;
 394
 395 failed_driver_register:
 396         usb_serial_deregister (&option_1port_device);
 397 failed_1port_device_register:
 398         return retval;
 399 }
 400
 401 static void __exit option_exit(void)
 402 {
 403         usb_deregister (&option_driver);
 404         usb_serial_deregister (&option_1port_device);
 405 }
 406
 407 module_init(option_init);
 408 module_exit(option_exit);
 409
 410 static void option_set_termios(struct tty_struct *tty,
 411                 struct usb_serial_port *port, struct ktermios *old_termios)
 412 {
 413         dbg("%s", __func__);
 414         /* Doesn't support option setting */
 415         tty_termios_copy_hw(tty->termios, old_termios);
 416         option_send_setup(tty, port);
 417 }
 418
 419 static int option_tiocmget(struct tty_struct *tty, struct file *file)
 420 {
 421         struct usb_serial_port *port = tty->driver_data;
 422         unsigned int value;
 423         struct option_port_private *portdata;
 424
 425         portdata = usb_get_serial_port_data(port);
 426
 427         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
 428                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
 429                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
 430                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
 431                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
 432                 ((portdata->ri_state) ? TIOCM_RNG : 0);
 433
 434         return value;
 435 }
 436
 437 static int option_tiocmset(struct tty_struct *tty, struct file *file,
 438                         unsigned int set, unsigned int clear)
 439 {
 440         struct usb_serial_port *port = tty->driver_data;
 441         struct option_port_private *portdata;
 442
 443         portdata = usb_get_serial_port_data(port);
 444
 445         /* FIXME: what locks portdata fields ? */
 446         if (set & TIOCM_RTS)
 447                 portdata->rts_state = 1;
 448         if (set & TIOCM_DTR)
 449                 portdata->dtr_state = 1;
 450
 451         if (clear & TIOCM_RTS)
 452                 portdata->rts_state = 0;
 453         if (clear & TIOCM_DTR)
 454                 portdata->dtr_state = 0;
 455         return option_send_setup(tty, port);
 456 }
 457
 458 /* Write */
 459 static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
 460                         const unsigned char *buf, int count)
 461 {
 462         struct option_port_private *portdata;
 463         int i;
 464         int left, todo;
 465         struct urb *this_urb = NULL; /* spurious */
 466         int err;
 467
 468         portdata = usb_get_serial_port_data(port);
 469
 470         dbg("%s: write (%d chars)", __func__, count);
 471
 472         i = 0;
 473         left = count;
 474         for (i=0; left > 0 && i < N_OUT_URB; i++) {
 475                 todo = left;
 476                 if (todo > OUT_BUFLEN)
 477                         todo = OUT_BUFLEN;
 478
 479                 this_urb = portdata->out_urbs[i];
 480                 if (test_and_set_bit(i, &portdata->out_busy)) {
 481                         if (time_before(jiffies,
 482                                         portdata->tx_start_time[i] + 10 * HZ))
 483                                 continue;
 484                         usb_unlink_urb(this_urb);
 485                         continue;
 486                 }
 487                 if (this_urb->status != 0)
 488                         dbg("usb_write %p failed (err=%d)",
 489                                 this_urb, this_urb->status);
 490
 491                 dbg("%s: endpoint %d buf %d", __func__,
 492                         usb_pipeendpoint(this_urb->pipe), i);
 493
 494                 /* send the data */
 495                 memcpy (this_urb->transfer_buffer, buf, todo);
 496                 this_urb->transfer_buffer_length = todo;
 497
 498                 this_urb->dev = port->serial->dev;
 499                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 500                 if (err) {
 501                         dbg("usb_submit_urb %p (write bulk) failed "
 502                                 "(%d, has %d)", this_urb,
 503                                 err, this_urb->status);
 504                         clear_bit(i, &portdata->out_busy);
 505                         continue;
 506                 }
 507                 portdata->tx_start_time[i] = jiffies;
 508                 buf += todo;
 509                 left -= todo;
 510         }
 511
 512         count -= left;
 513         dbg("%s: wrote (did %d)", __func__, count);
 514         return count;
 515 }
 516
 517 static void option_indat_callback(struct urb *urb)
 518 {
 519         int err;
 520         int endpoint;
 521         struct usb_serial_port *port;
 522         struct tty_struct *tty;
 523         unsigned char *data = urb->transfer_buffer;
 524         int status = urb->status;
 525
 526         dbg("%s: %p", __func__, urb);
 527
 528         endpoint = usb_pipeendpoint(urb->pipe);
 529         port =  urb->context;
 530
 531         if (status) {
 532                 dbg("%s: nonzero status: %d on endpoint %02x.",
 533                     __func__, status, endpoint);
 534         } else {
 535                 tty = port->port.tty;
 536                 if (urb->actual_length) {
 537                         tty_buffer_request_room(tty, urb->actual_length);
 538                         tty_insert_flip_string(tty, data, urb->actual_length);
 539                         tty_flip_buffer_push(tty);
 540                 } else {
 541                         dbg("%s: empty read urb received", __func__);
 542                 }
 543
 544                 /* Resubmit urb so we continue receiving */
 545                 if (port->port.count && status != -ESHUTDOWN) {
 546                         err = usb_submit_urb(urb, GFP_ATOMIC);
 547                         if (err)
 548                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 549                                         "(%d)", __func__, err);
 550                 }
 551         }
 552         return;
 553 }
 554
 555 static void option_outdat_callback(struct urb *urb)
 556 {
 557         struct usb_serial_port *port;
 558         struct option_port_private *portdata;
 559         int i;
 560
 561         dbg("%s", __func__);
 562
 563         port =  urb->context;
 564
 565         usb_serial_port_softint(port);
 566
 567         portdata = usb_get_serial_port_data(port);
 568         for (i = 0; i < N_OUT_URB; ++i) {
 569                 if (portdata->out_urbs[i] == urb) {
 570                         smp_mb__before_clear_bit();
 571                         clear_bit(i, &portdata->out_busy);
 572                         break;
 573                 }
 574         }
 575 }
 576
 577 static void option_instat_callback(struct urb *urb)
 578 {
 579         int err;
 580         int status = urb->status;
 581         struct usb_serial_port *port =  urb->context;
 582         struct option_port_private *portdata = usb_get_serial_port_data(port);
 583         struct usb_serial *serial = port->serial;
 584
 585         dbg("%s", __func__);
 586         dbg("%s: urb %p port %p has data %p", __func__,urb,port,portdata);
 587
 588         if (status == 0) {
 589                 struct usb_ctrlrequest *req_pkt =
 590                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 591
 592                 if (!req_pkt) {
 593                         dbg("%s: NULL req_pkt\n", __func__);
 594                         return;
 595                 }
 596                 if ((req_pkt->bRequestType == 0xA1) &&
 597                                 (req_pkt->bRequest == 0x20)) {
 598                         int old_dcd_state;
 599                         unsigned char signals = *((unsigned char *)
 600                                         urb->transfer_buffer +
 601                                         sizeof(struct usb_ctrlrequest));
 602
 603                         dbg("%s: signal x%x", __func__, signals);
 604
 605                         old_dcd_state = portdata->dcd_state;
 606                         portdata->cts_state = 1;
 607                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 608                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 609                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 610
 611                         if (port->port.tty && !C_CLOCAL(port->port.tty) &&
 612                                         old_dcd_state && !portdata->dcd_state)
 613                                 tty_hangup(port->port.tty);
 614                 } else {
 615                         dbg("%s: type %x req %x", __func__,
 616                                 req_pkt->bRequestType,req_pkt->bRequest);
 617                 }
 618         } else
 619                 dbg("%s: error %d", __func__, status);
 620
 621         /* Resubmit urb so we continue receiving IRQ data */
 622         if (status != -ESHUTDOWN) {
 623                 urb->dev = serial->dev;
 624                 err = usb_submit_urb(urb, GFP_ATOMIC);
 625                 if (err)
 626                         dbg("%s: resubmit intr urb failed. (%d)",
 627                                 __func__, err);
 628         }
 629 }
 630
 631 static int option_write_room(struct tty_struct *tty)
 632 {
 633         struct usb_serial_port *port = tty->driver_data;
 634         struct option_port_private *portdata;
 635         int i;
 636         int data_len = 0;
 637         struct urb *this_urb;
 638
 639         portdata = usb_get_serial_port_data(port);
 640
 641
 642         for (i=0; i < N_OUT_URB; i++) {
 643                 this_urb = portdata->out_urbs[i];
 644                 if (this_urb && !test_bit(i, &portdata->out_busy))
 645                         data_len += OUT_BUFLEN;
 646         }
 647
 648         dbg("%s: %d", __func__, data_len);
 649         return data_len;
 650 }
 651
 652 static int option_chars_in_buffer(struct tty_struct *tty)
 653 {
 654         struct usb_serial_port *port = tty->driver_data;
 655         struct option_port_private *portdata;
 656         int i;
 657         int data_len = 0;
 658         struct urb *this_urb;
 659
 660         portdata = usb_get_serial_port_data(port);
 661
 662         for (i=0; i < N_OUT_URB; i++) {
 663                 this_urb = portdata->out_urbs[i];
 664                 /* FIXME: This locking is insufficient as this_urb may
 665                    go unused during the test */
 666                 if (this_urb && test_bit(i, &portdata->out_busy))
 667                         data_len += this_urb->transfer_buffer_length;
 668         }
 669         dbg("%s: %d", __func__, data_len);
 670         return data_len;
 671 }
 672
 673 static int option_open(struct tty_struct *tty,
 674                         struct usb_serial_port *port, struct file *filp)
 675 {
 676         struct option_port_private *portdata;
 677         struct usb_serial *serial = port->serial;
 678         int i, err;
 679         struct urb *urb;
 680
 681         portdata = usb_get_serial_port_data(port);
 682
 683         dbg("%s", __func__);
 684
 685         /* Set some sane defaults */
 686         portdata->rts_state = 1;
 687         portdata->dtr_state = 1;
 688
 689         /* Reset low level data toggle and start reading from endpoints */
 690         for (i = 0; i < N_IN_URB; i++) {
 691                 urb = portdata->in_urbs[i];
 692                 if (! urb)
 693                         continue;
 694                 if (urb->dev != serial->dev) {
 695                         dbg("%s: dev %p != %p", __func__,
 696                                 urb->dev, serial->dev);
 697                         continue;
 698                 }
 699
 700                 /*
 701                  * make sure endpoint data toggle is synchronized with the
 702                  * device
 703                  */
 704                 usb_clear_halt(urb->dev, urb->pipe);
 705
 706                 err = usb_submit_urb(urb, GFP_KERNEL);
 707                 if (err) {
 708                         dbg("%s: submit urb %d failed (%d) %d",
 709                                 __func__, i, err,
 710                                 urb->transfer_buffer_length);
 711                 }
 712         }
 713
 714         /* Reset low level data toggle on out endpoints */
 715         for (i = 0; i < N_OUT_URB; i++) {
 716                 urb = portdata->out_urbs[i];
 717                 if (! urb)
 718                         continue;
 719                 urb->dev = serial->dev;
 720                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 721                                 usb_pipeout(urb->pipe), 0); */
 722         }
 723
 724         if (tty)
 725                 tty->low_latency = 1;
 726
 727         option_send_setup(tty, port);
 728
 729         return (0);
 730 }
 731
 732 static void option_close(struct tty_struct *tty,
 733                         struct usb_serial_port *port, struct file *filp)
 734 {
 735         int i;
 736         struct usb_serial *serial = port->serial;
 737         struct option_port_private *portdata;
 738
 739         dbg("%s", __func__);
 740         portdata = usb_get_serial_port_data(port);
 741
 742         portdata->rts_state = 0;
 743         portdata->dtr_state = 0;
 744
 745         if (serial->dev) {
 746                 mutex_lock(&serial->disc_mutex);
 747                 if (!serial->disconnected)
 748                         option_send_setup(tty, port);
 749                 mutex_unlock(&serial->disc_mutex);
 750
 751                 /* Stop reading/writing urbs */
 752                 for (i = 0; i < N_IN_URB; i++)
 753                         usb_kill_urb(portdata->in_urbs[i]);
 754                 for (i = 0; i < N_OUT_URB; i++)
 755                         usb_kill_urb(portdata->out_urbs[i]);
 756         }
 757         port->port.tty = NULL;  /* FIXME */
 758 }
 759
 760 /* Helper functions used by option_setup_urbs */
 761 static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
 762                 int dir, void *ctx, char *buf, int len,
 763                 void (*callback)(struct urb *))
 764 {
 765         struct urb *urb;
 766
 767         if (endpoint == -1)
 768                 return NULL;            /* endpoint not needed */
 769
 770         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 771         if (urb == NULL) {
 772                 dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
 773                 return NULL;
 774         }
 775
 776                 /* Fill URB using supplied data. */
 777         usb_fill_bulk_urb(urb, serial->dev,
 778                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 779                       buf, len, callback, ctx);
 780
 781         return urb;
 782 }
 783
 784 /* Setup urbs */
 785 static void option_setup_urbs(struct usb_serial *serial)
 786 {
 787         int i,j;
 788         struct usb_serial_port *port;
 789         struct option_port_private *portdata;
 790
 791         dbg("%s", __func__);
 792
 793         for (i = 0; i < serial->num_ports; i++) {
 794                 port = serial->port[i];
 795                 portdata = usb_get_serial_port_data(port);
 796
 797         /* Do indat endpoints first */
 798                 for (j = 0; j < N_IN_URB; ++j) {
 799                         portdata->in_urbs[j] = option_setup_urb (serial,
 800                         port->bulk_in_endpointAddress, USB_DIR_IN, port,
 801                         portdata->in_buffer[j], IN_BUFLEN, option_indat_callback);
 802                 }
 803
 804                 /* outdat endpoints */
 805                 for (j = 0; j < N_OUT_URB; ++j) {
 806                         portdata->out_urbs[j] = option_setup_urb (serial,
 807                         port->bulk_out_endpointAddress, USB_DIR_OUT, port,
 808                         portdata->out_buffer[j], OUT_BUFLEN, option_outdat_callback);
 809                 }
 810         }
 811 }
 812
 813
 814 /** send RTS/DTR state to the port.
 815  *
 816  * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
 817  * CDC.
 818 */
 819 static int option_send_setup(struct tty_struct *tty,
 820                                                 struct usb_serial_port *port)
 821 {
 822         struct usb_serial *serial = port->serial;
 823         struct option_port_private *portdata;
 824         int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
 825         dbg("%s", __func__);
 826
 827         portdata = usb_get_serial_port_data(port);
 828
 829         if (tty) {
 830                 int val = 0;
 831                 if (portdata->dtr_state)
 832                         val |= 0x01;
 833                 if (portdata->rts_state)
 834                         val |= 0x02;
 835
 836                 return usb_control_msg(serial->dev,
 837                                 usb_rcvctrlpipe(serial->dev, 0),
 838                                 0x22,0x21,val,ifNum,NULL,0,USB_CTRL_SET_TIMEOUT);
 839         }
 840         return 0;
 841 }
 842
 843 static int option_startup(struct usb_serial *serial)
 844 {
 845         int i, j, err;
 846         struct usb_serial_port *port;
 847         struct option_port_private *portdata;
 848         u8 *buffer;
 849
 850         dbg("%s", __func__);
 851
 852         /* Now setup per port private data */
 853         for (i = 0; i < serial->num_ports; i++) {
 854                 port = serial->port[i];
 855                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
 856                 if (!portdata) {
 857                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
 858                                         __func__, i);
 859                         return (1);
 860                 }
 861
 862                 for (j = 0; j < N_IN_URB; j++) {
 863                         buffer = (u8 *)__get_free_page(GFP_KERNEL);
 864                         if (!buffer)
 865                                 goto bail_out_error;
 866                         portdata->in_buffer[j] = buffer;
 867                 }
 868
 869                 for (j = 0; j < N_OUT_URB; j++) {
 870                         buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
 871                         if (!buffer)
 872                                 goto bail_out_error2;
 873                         portdata->out_buffer[j] = buffer;
 874                 }
 875
 876                 usb_set_serial_port_data(port, portdata);
 877
 878                 if (! port->interrupt_in_urb)
 879                         continue;
 880                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 881                 if (err)
 882                         dbg("%s: submit irq_in urb failed %d",
 883                                 __func__, err);
 884         }
 885
 886         option_setup_urbs(serial);
 887
 888         return (0);
 889
 890 bail_out_error2:
 891         for (j = 0; j < N_OUT_URB; j++)
 892                 kfree(portdata->out_buffer[j]);
 893 bail_out_error:
 894         for (j = 0; j < N_IN_URB; j++)
 895                 if (portdata->in_buffer[j])
 896                         free_page((unsigned long)portdata->in_buffer[j]);
 897         kfree(portdata);
 898         return 1;
 899 }
 900
 901 static void option_shutdown(struct usb_serial *serial)
 902 {
 903         int i, j;
 904         struct usb_serial_port *port;
 905         struct option_port_private *portdata;
 906
 907         dbg("%s", __func__);
 908
 909         /* Stop reading/writing urbs */
 910         for (i = 0; i < serial->num_ports; ++i) {
 911                 port = serial->port[i];
 912                 portdata = usb_get_serial_port_data(port);
 913                 for (j = 0; j < N_IN_URB; j++)
 914                         usb_kill_urb(portdata->in_urbs[j]);
 915                 for (j = 0; j < N_OUT_URB; j++)
 916                         usb_kill_urb(portdata->out_urbs[j]);
 917         }
 918
 919         /* Now free them */
 920         for (i = 0; i < serial->num_ports; ++i) {
 921                 port = serial->port[i];
 922                 portdata = usb_get_serial_port_data(port);
 923
 924                 for (j = 0; j < N_IN_URB; j++) {
 925                         if (portdata->in_urbs[j]) {
 926                                 usb_free_urb(portdata->in_urbs[j]);
 927                                 free_page((unsigned long)portdata->in_buffer[j]);
 928                                 portdata->in_urbs[j] = NULL;
 929                         }
 930                 }
 931                 for (j = 0; j < N_OUT_URB; j++) {
 932                         if (portdata->out_urbs[j]) {
 933                                 usb_free_urb(portdata->out_urbs[j]);
 934                                 kfree(portdata->out_buffer[j]);
 935                                 portdata->out_urbs[j] = NULL;
 936                         }
 937                 }
 938         }
 939
 940         /* Now free per port private data */
 941         for (i = 0; i < serial->num_ports; i++) {
 942                 port = serial->port[i];
 943                 kfree(usb_get_serial_port_data(port));
 944         }
 945 }
 946
 947 MODULE_AUTHOR(DRIVER_AUTHOR);
 948 MODULE_DESCRIPTION(DRIVER_DESC);
 949 MODULE_VERSION(DRIVER_VERSION);
 950 MODULE_LICENSE("GPL");
 951
 952 #ifdef CONFIG_USB_DEBUG
 953 module_param(debug, bool, S_IRUGO | S_IWUSR);
 954 MODULE_PARM_DESC(debug, "Debug messages");
 955 #endif
 956