git.oblomov.eu Git - linux-2.6/blob - 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 usb_serial_port *port, struct file *filp);
  47 static void option_close(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 void option_rx_throttle(struct usb_serial_port *port);
  51 static void option_rx_unthrottle(struct usb_serial_port *port);
  52 static int  option_write_room(struct usb_serial_port *port);
  53
  54 static void option_instat_callback(struct urb *urb);
  55
  56 static int option_write(struct usb_serial_port *port,
  57                         const unsigned char *buf, int count);
  58
  59 static int  option_chars_in_buffer(struct usb_serial_port *port);
  60 static int  option_ioctl(struct usb_serial_port *port, struct file *file,
  61                         unsigned int cmd, unsigned long arg);
  62 static void option_set_termios(struct usb_serial_port *port,
  63                                 struct ktermios *old);
  64 static void option_break_ctl(struct usb_serial_port *port, int break_state);
  65 static int  option_tiocmget(struct usb_serial_port *port, struct file *file);
  66 static int  option_tiocmset(struct usb_serial_port *port, struct file *file,
  67                                 unsigned int set, unsigned int clear);
  68 static int  option_send_setup(struct usb_serial_port *port);
  69
  70 /* Vendor and product IDs */
  71 #define OPTION_VENDOR_ID                        0x0AF0
  72 #define OPTION_PRODUCT_COLT                     0x5000
  73 #define OPTION_PRODUCT_RICOLA                   0x6000
  74 #define OPTION_PRODUCT_RICOLA_LIGHT             0x6100
  75 #define OPTION_PRODUCT_RICOLA_QUAD              0x6200
  76 #define OPTION_PRODUCT_RICOLA_QUAD_LIGHT        0x6300
  77 #define OPTION_PRODUCT_RICOLA_NDIS              0x6050
  78 #define OPTION_PRODUCT_RICOLA_NDIS_LIGHT        0x6150
  79 #define OPTION_PRODUCT_RICOLA_NDIS_QUAD         0x6250
  80 #define OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT   0x6350
  81 #define OPTION_PRODUCT_COBRA                    0x6500
  82 #define OPTION_PRODUCT_COBRA_BUS                0x6501
  83 #define OPTION_PRODUCT_VIPER                    0x6600
  84 #define OPTION_PRODUCT_VIPER_BUS                0x6601
  85 #define OPTION_PRODUCT_GT_MAX_READY             0x6701
  86 #define OPTION_PRODUCT_GT_MAX                   0x6711
  87 #define OPTION_PRODUCT_FUJI_MODEM_LIGHT         0x6721
  88 #define OPTION_PRODUCT_FUJI_MODEM_GT            0x6741
  89 #define OPTION_PRODUCT_FUJI_MODEM_EX            0x6761
  90 #define OPTION_PRODUCT_FUJI_NETWORK_LIGHT       0x6731
  91 #define OPTION_PRODUCT_FUJI_NETWORK_GT          0x6751
  92 #define OPTION_PRODUCT_FUJI_NETWORK_EX          0x6771
  93 #define OPTION_PRODUCT_KOI_MODEM                0x6800
  94 #define OPTION_PRODUCT_KOI_NETWORK              0x6811
  95 #define OPTION_PRODUCT_SCORPION_MODEM           0x6901
  96 #define OPTION_PRODUCT_SCORPION_NETWORK         0x6911
  97 #define OPTION_PRODUCT_ETNA_MODEM               0x7001
  98 #define OPTION_PRODUCT_ETNA_NETWORK             0x7011
  99 #define OPTION_PRODUCT_ETNA_MODEM_LITE          0x7021
 100 #define OPTION_PRODUCT_ETNA_MODEM_GT            0x7041
 101 #define OPTION_PRODUCT_ETNA_MODEM_EX            0x7061
 102 #define OPTION_PRODUCT_ETNA_NETWORK_LITE        0x7031
 103 #define OPTION_PRODUCT_ETNA_NETWORK_GT          0x7051
 104 #define OPTION_PRODUCT_ETNA_NETWORK_EX          0x7071
 105 #define OPTION_PRODUCT_ETNA_KOI_MODEM           0x7100
 106 #define OPTION_PRODUCT_ETNA_KOI_NETWORK         0x7111
 107
 108 #define HUAWEI_VENDOR_ID                        0x12D1
 109 #define HUAWEI_PRODUCT_E600                     0x1001
 110 #define HUAWEI_PRODUCT_E220                     0x1003
 111 #define HUAWEI_PRODUCT_E220BIS                  0x1004
 112 #define HUAWEI_PRODUCT_E1401                    0x1401
 113 #define HUAWEI_PRODUCT_E1403                    0x1403
 114 #define HUAWEI_PRODUCT_E1405                    0x1405
 115 #define HUAWEI_PRODUCT_E1406                    0x1406
 116 #define HUAWEI_PRODUCT_E1408                    0x1408
 117 #define HUAWEI_PRODUCT_E1409                    0x1409
 118 #define HUAWEI_PRODUCT_E1410                    0x1410
 119 #define HUAWEI_PRODUCT_E1411                    0x1411
 120 #define HUAWEI_PRODUCT_E1412                    0x1412
 121 #define HUAWEI_PRODUCT_E1413                    0x1413
 122 #define HUAWEI_PRODUCT_E1414                    0x1414
 123 #define HUAWEI_PRODUCT_E1415                    0x1415
 124 #define HUAWEI_PRODUCT_E1416                    0x1416
 125 #define HUAWEI_PRODUCT_E1417                    0x1417
 126 #define HUAWEI_PRODUCT_E1418                    0x1418
 127 #define HUAWEI_PRODUCT_E1419                    0x1419
 128
 129 #define NOVATELWIRELESS_VENDOR_ID               0x1410
 130
 131 /* MERLIN EVDO PRODUCTS */
 132 #define NOVATELWIRELESS_PRODUCT_V640            0x1100
 133 #define NOVATELWIRELESS_PRODUCT_V620            0x1110
 134 #define NOVATELWIRELESS_PRODUCT_V740            0x1120
 135 #define NOVATELWIRELESS_PRODUCT_V720            0x1130
 136
 137 /* MERLIN HSDPA/HSPA PRODUCTS */
 138 #define NOVATELWIRELESS_PRODUCT_U730            0x1400
 139 #define NOVATELWIRELESS_PRODUCT_U740            0x1410
 140 #define NOVATELWIRELESS_PRODUCT_U870            0x1420
 141 #define NOVATELWIRELESS_PRODUCT_XU870           0x1430
 142 #define NOVATELWIRELESS_PRODUCT_X950D           0x1450
 143
 144 /* EXPEDITE PRODUCTS */
 145 #define NOVATELWIRELESS_PRODUCT_EV620           0x2100
 146 #define NOVATELWIRELESS_PRODUCT_ES720           0x2110
 147 #define NOVATELWIRELESS_PRODUCT_E725            0x2120
 148 #define NOVATELWIRELESS_PRODUCT_ES620           0x2130
 149 #define NOVATELWIRELESS_PRODUCT_EU730           0x2400
 150 #define NOVATELWIRELESS_PRODUCT_EU740           0x2410
 151 #define NOVATELWIRELESS_PRODUCT_EU870D          0x2420
 152
 153 /* OVATION PRODUCTS */
 154 #define NOVATELWIRELESS_PRODUCT_MC727           0x4100
 155 #define NOVATELWIRELESS_PRODUCT_MC950D          0x4400
 156
 157 /* FUTURE NOVATEL PRODUCTS */
 158 #define NOVATELWIRELESS_PRODUCT_EVDO_1          0x6000
 159 #define NOVATELWIRELESS_PRODUCT_HSPA_1          0x7000
 160 #define NOVATELWIRELESS_PRODUCT_EMBEDDED_1      0x8000
 161 #define NOVATELWIRELESS_PRODUCT_GLOBAL_1        0x9000
 162 #define NOVATELWIRELESS_PRODUCT_EVDO_2          0x6001
 163 #define NOVATELWIRELESS_PRODUCT_HSPA_2          0x7001
 164 #define NOVATELWIRELESS_PRODUCT_EMBEDDED_2      0x8001
 165 #define NOVATELWIRELESS_PRODUCT_GLOBAL_2        0x9001
 166
 167 /* AMOI PRODUCTS */
 168 #define AMOI_VENDOR_ID                          0x1614
 169 #define AMOI_PRODUCT_H01                        0x0800
 170 #define AMOI_PRODUCT_H01A                       0x7002
 171 #define AMOI_PRODUCT_H02                        0x0802
 172
 173 #define DELL_VENDOR_ID                          0x413C
 174
 175 #define KYOCERA_VENDOR_ID                       0x0c88
 176 #define KYOCERA_PRODUCT_KPC680                  0x180a
 177
 178 #define ANYDATA_VENDOR_ID                       0x16d5
 179 #define ANYDATA_PRODUCT_ADU_E100A               0x6501
 180 #define ANYDATA_PRODUCT_ADU_500A                0x6502
 181
 182 #define AXESSTEL_VENDOR_ID                      0x1726
 183 #define AXESSTEL_PRODUCT_MV110H                 0x1000
 184
 185 #define ONDA_VENDOR_ID                          0x19d2
 186 #define ONDA_PRODUCT_MSA501HS                   0x0001
 187 #define ONDA_PRODUCT_ET502HS                    0x0002
 188
 189 #define BANDRICH_VENDOR_ID                      0x1A8D
 190 #define BANDRICH_PRODUCT_C100_1                 0x1002
 191 #define BANDRICH_PRODUCT_C100_2                 0x1003
 192
 193 #define AMOI_VENDOR_ID                  0x1614
 194 #define AMOI_PRODUCT_9508                       0x0800
 195
 196 #define QUALCOMM_VENDOR_ID                      0x05C6
 197
 198 #define MAXON_VENDOR_ID                         0x16d8
 199
 200 #define TELIT_VENDOR_ID                         0x1bc7
 201 #define TELIT_PRODUCT_UC864E                    0x1003
 202
 203 static struct usb_device_id option_ids[] = {
 204         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
 205         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
 206         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
 207         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD) },
 208         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD_LIGHT) },
 209         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS) },
 210         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_LIGHT) },
 211         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD) },
 212         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT) },
 213         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
 214         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA_BUS) },
 215         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER) },
 216         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER_BUS) },
 217         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX_READY) },
 218         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX) },
 219         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_LIGHT) },
 220         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_GT) },
 221         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_EX) },
 222         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_LIGHT) },
 223         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_GT) },
 224         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_EX) },
 225         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_MODEM) },
 226         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_NETWORK) },
 227         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_MODEM) },
 228         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_NETWORK) },
 229         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM) },
 230         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK) },
 231         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_LITE) },
 232         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) },
 233         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) },
 234         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_LITE) },
 235         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_GT) },
 236         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_EX) },
 237         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) },
 238         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_NETWORK) },
 239         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600, 0xff, 0xff, 0xff) },
 240         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220, 0xff, 0xff, 0xff) },
 241         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS, 0xff, 0xff, 0xff) },
 242         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1401, 0xff, 0xff, 0xff) },
 243         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1403, 0xff, 0xff, 0xff) },
 244         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1405, 0xff, 0xff, 0xff) },
 245         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1406, 0xff, 0xff, 0xff) },
 246         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1408, 0xff, 0xff, 0xff) },
 247         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1409, 0xff, 0xff, 0xff) },
 248         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1410, 0xff, 0xff, 0xff) },
 249         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1411, 0xff, 0xff, 0xff) },
 250         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1412, 0xff, 0xff, 0xff) },
 251         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1413, 0xff, 0xff, 0xff) },
 252         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1414, 0xff, 0xff, 0xff) },
 253         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1415, 0xff, 0xff, 0xff) },
 254         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1416, 0xff, 0xff, 0xff) },
 255         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1417, 0xff, 0xff, 0xff) },
 256         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1418, 0xff, 0xff, 0xff) },
 257         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1419, 0xff, 0xff, 0xff) },
 258         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_9508) },
 259         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */
 260         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */
 261         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) }, /* Novatel Merlin EX720/V740/X720 */
 262         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V720) }, /* Novatel Merlin V720/S720/PC720 */
 263         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U730) }, /* Novatel U730/U740 (VF version) */
 264         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U740) }, /* Novatel U740 */
 265         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U870) }, /* Novatel U870 */
 266         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_XU870) }, /* Novatel Merlin XU870 HSDPA/3G */
 267         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_X950D) }, /* Novatel X950D */
 268         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EV620) }, /* Novatel EV620/ES620 CDMA/EV-DO */
 269         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES720) }, /* Novatel ES620/ES720/U720/USB720 */
 270         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E725) }, /* Novatel E725/E726 */
 271         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES620) }, /* Novatel Merlin ES620 SM Bus */
 272         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU730) }, /* Novatel EU730 and Vodafone EU740 */
 273         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU740) }, /* Novatel non-Vodafone EU740 */
 274         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) }, /* Novatel EU850D/EU860D/EU870D */
 275         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) }, /* Novatel MC930D/MC950D */
 276         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) }, /* Novatel MC727/U727/USB727 */
 277         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_1) }, /* Novatel EVDO product */
 278         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_1) }, /* Novatel HSPA product */
 279         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_1) }, /* Novatel Embedded product */
 280         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_1) }, /* Novatel Global product */
 281         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_2) }, /* Novatel EVDO product */
 282         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_2) }, /* Novatel HSPA product */
 283         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_2) }, /* Novatel Embedded product */
 284         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_2) }, /* Novatel Global product */
 285
 286         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01) },
 287         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01A) },
 288         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H02) },
 289
 290         { USB_DEVICE(DELL_VENDOR_ID, 0x8114) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */
 291         { USB_DEVICE(DELL_VENDOR_ID, 0x8115) }, /* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 292         { USB_DEVICE(DELL_VENDOR_ID, 0x8116) }, /* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 293         { USB_DEVICE(DELL_VENDOR_ID, 0x8117) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO ExpressCard == Novatel Merlin XV620 CDMA/EV-DO */
 294         { USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard == Novatel Merlin XU870 HSDPA/3G */
 295         { USB_DEVICE(DELL_VENDOR_ID, 0x8128) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite E720 CDMA/EV-DO */
 296         { USB_DEVICE(DELL_VENDOR_ID, 0x8129) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite ET620 CDMA/EV-DO */
 297         { USB_DEVICE(DELL_VENDOR_ID, 0x8133) }, /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
 298         { USB_DEVICE(DELL_VENDOR_ID, 0x8136) }, /* Dell Wireless HSDPA 5520 == Novatel Expedite EU860D */
 299         { USB_DEVICE(DELL_VENDOR_ID, 0x8137) }, /* Dell Wireless HSDPA 5520 */
 300         { USB_DEVICE(DELL_VENDOR_ID, 0x8138) }, /* Dell Wireless 5520 Voda I Mobile Broadband (3G HSDPA) Minicard */
 301         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },
 302         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
 303         { USB_DEVICE(AXESSTEL_VENDOR_ID, AXESSTEL_PRODUCT_MV110H) },
 304         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_MSA501HS) },
 305         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_ET502HS) },
 306         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
 307         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
 308         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
 309         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
 310         { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */
 311         { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864E) },
 312         { } /* Terminating entry */
 313 };
 314 MODULE_DEVICE_TABLE(usb, option_ids);
 315
 316 static struct usb_driver option_driver = {
 317         .name       = "option",
 318         .probe      = usb_serial_probe,
 319         .disconnect = usb_serial_disconnect,
 320         .id_table   = option_ids,
 321         .no_dynamic_id =        1,
 322 };
 323
 324 /* The card has three separate interfaces, which the serial driver
 325  * recognizes separately, thus num_port=1.
 326  */
 327
 328 static struct usb_serial_driver option_1port_device = {
 329         .driver = {
 330                 .owner =        THIS_MODULE,
 331                 .name =         "option1",
 332         },
 333         .description       = "GSM modem (1-port)",
 334         .usb_driver        = &option_driver,
 335         .id_table          = option_ids,
 336         .num_ports         = 1,
 337         .open              = option_open,
 338         .close             = option_close,
 339         .write             = option_write,
 340         .write_room        = option_write_room,
 341         .chars_in_buffer   = option_chars_in_buffer,
 342         .throttle          = option_rx_throttle,
 343         .unthrottle        = option_rx_unthrottle,
 344         .ioctl             = option_ioctl,
 345         .set_termios       = option_set_termios,
 346         .break_ctl         = option_break_ctl,
 347         .tiocmget          = option_tiocmget,
 348         .tiocmset          = option_tiocmset,
 349         .attach            = option_startup,
 350         .shutdown          = option_shutdown,
 351         .read_int_callback = option_instat_callback,
 352 };
 353
 354 #ifdef CONFIG_USB_DEBUG
 355 static int debug;
 356 #else
 357 #define debug 0
 358 #endif
 359
 360 /* per port private data */
 361
 362 #define N_IN_URB 4
 363 #define N_OUT_URB 1
 364 #define IN_BUFLEN 4096
 365 #define OUT_BUFLEN 128
 366
 367 struct option_port_private {
 368         /* Input endpoints and buffer for this port */
 369         struct urb *in_urbs[N_IN_URB];
 370         u8 *in_buffer[N_IN_URB];
 371         /* Output endpoints and buffer for this port */
 372         struct urb *out_urbs[N_OUT_URB];
 373         u8 *out_buffer[N_OUT_URB];
 374         unsigned long out_busy;         /* Bit vector of URBs in use */
 375
 376         /* Settings for the port */
 377         int rts_state;  /* Handshaking pins (outputs) */
 378         int dtr_state;
 379         int cts_state;  /* Handshaking pins (inputs) */
 380         int dsr_state;
 381         int dcd_state;
 382         int ri_state;
 383
 384         unsigned long tx_start_time[N_OUT_URB];
 385 };
 386
 387 /* Functions used by new usb-serial code. */
 388 static int __init option_init(void)
 389 {
 390         int retval;
 391         retval = usb_serial_register(&option_1port_device);
 392         if (retval)
 393                 goto failed_1port_device_register;
 394         retval = usb_register(&option_driver);
 395         if (retval)
 396                 goto failed_driver_register;
 397
 398         info(DRIVER_DESC ": " DRIVER_VERSION);
 399
 400         return 0;
 401
 402 failed_driver_register:
 403         usb_serial_deregister (&option_1port_device);
 404 failed_1port_device_register:
 405         return retval;
 406 }
 407
 408 static void __exit option_exit(void)
 409 {
 410         usb_deregister (&option_driver);
 411         usb_serial_deregister (&option_1port_device);
 412 }
 413
 414 module_init(option_init);
 415 module_exit(option_exit);
 416
 417 static void option_rx_throttle(struct usb_serial_port *port)
 418 {
 419         dbg("%s", __func__);
 420 }
 421
 422 static void option_rx_unthrottle(struct usb_serial_port *port)
 423 {
 424         dbg("%s", __func__);
 425 }
 426
 427 static void option_break_ctl(struct usb_serial_port *port, int break_state)
 428 {
 429         /* Unfortunately, I don't know how to send a break */
 430         dbg("%s", __func__);
 431 }
 432
 433 static void option_set_termios(struct usb_serial_port *port,
 434                         struct ktermios *old_termios)
 435 {
 436         dbg("%s", __func__);
 437         /* Doesn't support option setting */
 438         tty_termios_copy_hw(port->tty->termios, old_termios);
 439         option_send_setup(port);
 440 }
 441
 442 static int option_tiocmget(struct usb_serial_port *port, struct file *file)
 443 {
 444         unsigned int value;
 445         struct option_port_private *portdata;
 446
 447         portdata = usb_get_serial_port_data(port);
 448
 449         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
 450                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
 451                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
 452                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
 453                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
 454                 ((portdata->ri_state) ? TIOCM_RNG : 0);
 455
 456         return value;
 457 }
 458
 459 static int option_tiocmset(struct usb_serial_port *port, struct file *file,
 460                         unsigned int set, unsigned int clear)
 461 {
 462         struct option_port_private *portdata;
 463
 464         portdata = usb_get_serial_port_data(port);
 465
 466         /* FIXME: what locks portdata fields ? */
 467         if (set & TIOCM_RTS)
 468                 portdata->rts_state = 1;
 469         if (set & TIOCM_DTR)
 470                 portdata->dtr_state = 1;
 471
 472         if (clear & TIOCM_RTS)
 473                 portdata->rts_state = 0;
 474         if (clear & TIOCM_DTR)
 475                 portdata->dtr_state = 0;
 476         return option_send_setup(port);
 477 }
 478
 479 static int option_ioctl(struct usb_serial_port *port, struct file *file,
 480                         unsigned int cmd, unsigned long arg)
 481 {
 482         return -ENOIOCTLCMD;
 483 }
 484
 485 /* Write */
 486 static int option_write(struct usb_serial_port *port,
 487                         const unsigned char *buf, int count)
 488 {
 489         struct option_port_private *portdata;
 490         int i;
 491         int left, todo;
 492         struct urb *this_urb = NULL; /* spurious */
 493         int err;
 494
 495         portdata = usb_get_serial_port_data(port);
 496
 497         dbg("%s: write (%d chars)", __func__, count);
 498
 499         i = 0;
 500         left = count;
 501         for (i=0; left > 0 && i < N_OUT_URB; i++) {
 502                 todo = left;
 503                 if (todo > OUT_BUFLEN)
 504                         todo = OUT_BUFLEN;
 505
 506                 this_urb = portdata->out_urbs[i];
 507                 if (test_and_set_bit(i, &portdata->out_busy)) {
 508                         if (time_before(jiffies,
 509                                         portdata->tx_start_time[i] + 10 * HZ))
 510                                 continue;
 511                         usb_unlink_urb(this_urb);
 512                         continue;
 513                 }
 514                 if (this_urb->status != 0)
 515                         dbg("usb_write %p failed (err=%d)",
 516                                 this_urb, this_urb->status);
 517
 518                 dbg("%s: endpoint %d buf %d", __func__,
 519                         usb_pipeendpoint(this_urb->pipe), i);
 520
 521                 /* send the data */
 522                 memcpy (this_urb->transfer_buffer, buf, todo);
 523                 this_urb->transfer_buffer_length = todo;
 524
 525                 this_urb->dev = port->serial->dev;
 526                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 527                 if (err) {
 528                         dbg("usb_submit_urb %p (write bulk) failed "
 529                                 "(%d, has %d)", this_urb,
 530                                 err, this_urb->status);
 531                         clear_bit(i, &portdata->out_busy);
 532                         continue;
 533                 }
 534                 portdata->tx_start_time[i] = jiffies;
 535                 buf += todo;
 536                 left -= todo;
 537         }
 538
 539         count -= left;
 540         dbg("%s: wrote (did %d)", __func__, count);
 541         return count;
 542 }
 543
 544 static void option_indat_callback(struct urb *urb)
 545 {
 546         int err;
 547         int endpoint;
 548         struct usb_serial_port *port;
 549         struct tty_struct *tty;
 550         unsigned char *data = urb->transfer_buffer;
 551         int status = urb->status;
 552
 553         dbg("%s: %p", __func__, urb);
 554
 555         endpoint = usb_pipeendpoint(urb->pipe);
 556         port =  urb->context;
 557
 558         if (status) {
 559                 dbg("%s: nonzero status: %d on endpoint %02x.",
 560                     __func__, status, endpoint);
 561         } else {
 562                 tty = port->tty;
 563                 if (urb->actual_length) {
 564                         tty_buffer_request_room(tty, urb->actual_length);
 565                         tty_insert_flip_string(tty, data, urb->actual_length);
 566                         tty_flip_buffer_push(tty);
 567                 } else {
 568                         dbg("%s: empty read urb received", __func__);
 569                 }
 570
 571                 /* Resubmit urb so we continue receiving */
 572                 if (port->open_count && status != -ESHUTDOWN) {
 573                         err = usb_submit_urb(urb, GFP_ATOMIC);
 574                         if (err)
 575                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 576                                         "(%d)", __func__, err);
 577                 }
 578         }
 579         return;
 580 }
 581
 582 static void option_outdat_callback(struct urb *urb)
 583 {
 584         struct usb_serial_port *port;
 585         struct option_port_private *portdata;
 586         int i;
 587
 588         dbg("%s", __func__);
 589
 590         port =  urb->context;
 591
 592         usb_serial_port_softint(port);
 593
 594         portdata = usb_get_serial_port_data(port);
 595         for (i = 0; i < N_OUT_URB; ++i) {
 596                 if (portdata->out_urbs[i] == urb) {
 597                         smp_mb__before_clear_bit();
 598                         clear_bit(i, &portdata->out_busy);
 599                         break;
 600                 }
 601         }
 602 }
 603
 604 static void option_instat_callback(struct urb *urb)
 605 {
 606         int err;
 607         int status = urb->status;
 608         struct usb_serial_port *port =  urb->context;
 609         struct option_port_private *portdata = usb_get_serial_port_data(port);
 610         struct usb_serial *serial = port->serial;
 611
 612         dbg("%s", __func__);
 613         dbg("%s: urb %p port %p has data %p", __func__,urb,port,portdata);
 614
 615         if (status == 0) {
 616                 struct usb_ctrlrequest *req_pkt =
 617                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 618
 619                 if (!req_pkt) {
 620                         dbg("%s: NULL req_pkt\n", __func__);
 621                         return;
 622                 }
 623                 if ((req_pkt->bRequestType == 0xA1) &&
 624                                 (req_pkt->bRequest == 0x20)) {
 625                         int old_dcd_state;
 626                         unsigned char signals = *((unsigned char *)
 627                                         urb->transfer_buffer +
 628                                         sizeof(struct usb_ctrlrequest));
 629
 630                         dbg("%s: signal x%x", __func__, signals);
 631
 632                         old_dcd_state = portdata->dcd_state;
 633                         portdata->cts_state = 1;
 634                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 635                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 636                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 637
 638                         if (port->tty && !C_CLOCAL(port->tty) &&
 639                                         old_dcd_state && !portdata->dcd_state)
 640                                 tty_hangup(port->tty);
 641                 } else {
 642                         dbg("%s: type %x req %x", __func__,
 643                                 req_pkt->bRequestType,req_pkt->bRequest);
 644                 }
 645         } else
 646                 dbg("%s: error %d", __func__, status);
 647
 648         /* Resubmit urb so we continue receiving IRQ data */
 649         if (status != -ESHUTDOWN) {
 650                 urb->dev = serial->dev;
 651                 err = usb_submit_urb(urb, GFP_ATOMIC);
 652                 if (err)
 653                         dbg("%s: resubmit intr urb failed. (%d)",
 654                                 __func__, err);
 655         }
 656 }
 657
 658 static int option_write_room(struct usb_serial_port *port)
 659 {
 660         struct option_port_private *portdata;
 661         int i;
 662         int data_len = 0;
 663         struct urb *this_urb;
 664
 665         portdata = usb_get_serial_port_data(port);
 666
 667
 668         for (i=0; i < N_OUT_URB; i++) {
 669                 this_urb = portdata->out_urbs[i];
 670                 if (this_urb && !test_bit(i, &portdata->out_busy))
 671                         data_len += OUT_BUFLEN;
 672         }
 673
 674         dbg("%s: %d", __func__, data_len);
 675         return data_len;
 676 }
 677
 678 static int option_chars_in_buffer(struct usb_serial_port *port)
 679 {
 680         struct option_port_private *portdata;
 681         int i;
 682         int data_len = 0;
 683         struct urb *this_urb;
 684
 685         portdata = usb_get_serial_port_data(port);
 686
 687         for (i=0; i < N_OUT_URB; i++) {
 688                 this_urb = portdata->out_urbs[i];
 689                 /* FIXME: This locking is insufficient as this_urb may
 690                    go unused during the test */
 691                 if (this_urb && test_bit(i, &portdata->out_busy))
 692                         data_len += this_urb->transfer_buffer_length;
 693         }
 694         dbg("%s: %d", __func__, data_len);
 695         return data_len;
 696 }
 697
 698 static int option_open(struct usb_serial_port *port, struct file *filp)
 699 {
 700         struct option_port_private *portdata;
 701         struct usb_serial *serial = port->serial;
 702         int i, err;
 703         struct urb *urb;
 704
 705         portdata = usb_get_serial_port_data(port);
 706
 707         dbg("%s", __func__);
 708
 709         /* Set some sane defaults */
 710         portdata->rts_state = 1;
 711         portdata->dtr_state = 1;
 712
 713         /* Reset low level data toggle and start reading from endpoints */
 714         for (i = 0; i < N_IN_URB; i++) {
 715                 urb = portdata->in_urbs[i];
 716                 if (! urb)
 717                         continue;
 718                 if (urb->dev != serial->dev) {
 719                         dbg("%s: dev %p != %p", __func__,
 720                                 urb->dev, serial->dev);
 721                         continue;
 722                 }
 723
 724                 /*
 725                  * make sure endpoint data toggle is synchronized with the
 726                  * device
 727                  */
 728                 usb_clear_halt(urb->dev, urb->pipe);
 729
 730                 err = usb_submit_urb(urb, GFP_KERNEL);
 731                 if (err) {
 732                         dbg("%s: submit urb %d failed (%d) %d",
 733                                 __func__, i, err,
 734                                 urb->transfer_buffer_length);
 735                 }
 736         }
 737
 738         /* Reset low level data toggle on out endpoints */
 739         for (i = 0; i < N_OUT_URB; i++) {
 740                 urb = portdata->out_urbs[i];
 741                 if (! urb)
 742                         continue;
 743                 urb->dev = serial->dev;
 744                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 745                                 usb_pipeout(urb->pipe), 0); */
 746         }
 747
 748         port->tty->low_latency = 1;
 749
 750         option_send_setup(port);
 751
 752         return (0);
 753 }
 754
 755 static void option_close(struct usb_serial_port *port, struct file *filp)
 756 {
 757         int i;
 758         struct usb_serial *serial = port->serial;
 759         struct option_port_private *portdata;
 760
 761         dbg("%s", __func__);
 762         portdata = usb_get_serial_port_data(port);
 763
 764         portdata->rts_state = 0;
 765         portdata->dtr_state = 0;
 766
 767         if (serial->dev) {
 768                 mutex_lock(&serial->disc_mutex);
 769                 if (!serial->disconnected)
 770                         option_send_setup(port);
 771                 mutex_unlock(&serial->disc_mutex);
 772
 773                 /* Stop reading/writing urbs */
 774                 for (i = 0; i < N_IN_URB; i++)
 775                         usb_kill_urb(portdata->in_urbs[i]);
 776                 for (i = 0; i < N_OUT_URB; i++)
 777                         usb_kill_urb(portdata->out_urbs[i]);
 778         }
 779         port->tty = NULL;
 780 }
 781
 782 /* Helper functions used by option_setup_urbs */
 783 static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
 784                 int dir, void *ctx, char *buf, int len,
 785                 void (*callback)(struct urb *))
 786 {
 787         struct urb *urb;
 788
 789         if (endpoint == -1)
 790                 return NULL;            /* endpoint not needed */
 791
 792         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 793         if (urb == NULL) {
 794                 dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
 795                 return NULL;
 796         }
 797
 798                 /* Fill URB using supplied data. */
 799         usb_fill_bulk_urb(urb, serial->dev,
 800                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 801                       buf, len, callback, ctx);
 802
 803         return urb;
 804 }
 805
 806 /* Setup urbs */
 807 static void option_setup_urbs(struct usb_serial *serial)
 808 {
 809         int i,j;
 810         struct usb_serial_port *port;
 811         struct option_port_private *portdata;
 812
 813         dbg("%s", __func__);
 814
 815         for (i = 0; i < serial->num_ports; i++) {
 816                 port = serial->port[i];
 817                 portdata = usb_get_serial_port_data(port);
 818
 819         /* Do indat endpoints first */
 820                 for (j = 0; j < N_IN_URB; ++j) {
 821                         portdata->in_urbs[j] = option_setup_urb (serial,
 822                         port->bulk_in_endpointAddress, USB_DIR_IN, port,
 823                         portdata->in_buffer[j], IN_BUFLEN, option_indat_callback);
 824                 }
 825
 826                 /* outdat endpoints */
 827                 for (j = 0; j < N_OUT_URB; ++j) {
 828                         portdata->out_urbs[j] = option_setup_urb (serial,
 829                         port->bulk_out_endpointAddress, USB_DIR_OUT, port,
 830                         portdata->out_buffer[j], OUT_BUFLEN, option_outdat_callback);
 831                 }
 832         }
 833 }
 834
 835
 836 /** send RTS/DTR state to the port.
 837  *
 838  * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
 839  * CDC.
 840 */
 841 static int option_send_setup(struct usb_serial_port *port)
 842 {
 843         struct usb_serial *serial = port->serial;
 844         struct option_port_private *portdata;
 845         int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
 846         dbg("%s", __func__);
 847
 848         portdata = usb_get_serial_port_data(port);
 849
 850         if (port->tty) {
 851                 int val = 0;
 852                 if (portdata->dtr_state)
 853                         val |= 0x01;
 854                 if (portdata->rts_state)
 855                         val |= 0x02;
 856
 857                 return usb_control_msg(serial->dev,
 858                                 usb_rcvctrlpipe(serial->dev, 0),
 859                                 0x22,0x21,val,ifNum,NULL,0,USB_CTRL_SET_TIMEOUT);
 860         }
 861
 862         return 0;
 863 }
 864
 865 static int option_startup(struct usb_serial *serial)
 866 {
 867         int i, j, err;
 868         struct usb_serial_port *port;
 869         struct option_port_private *portdata;
 870         u8 *buffer;
 871
 872         dbg("%s", __func__);
 873
 874         /* Now setup per port private data */
 875         for (i = 0; i < serial->num_ports; i++) {
 876                 port = serial->port[i];
 877                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
 878                 if (!portdata) {
 879                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
 880                                         __func__, i);
 881                         return (1);
 882                 }
 883
 884                 for (j = 0; j < N_IN_URB; j++) {
 885                         buffer = (u8 *)__get_free_page(GFP_KERNEL);
 886                         if (!buffer)
 887                                 goto bail_out_error;
 888                         portdata->in_buffer[j] = buffer;
 889                 }
 890
 891                 for (j = 0; j < N_OUT_URB; j++) {
 892                         buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
 893                         if (!buffer)
 894                                 goto bail_out_error2;
 895                         portdata->out_buffer[j] = buffer;
 896                 }
 897
 898                 usb_set_serial_port_data(port, portdata);
 899
 900                 if (! port->interrupt_in_urb)
 901                         continue;
 902                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 903                 if (err)
 904                         dbg("%s: submit irq_in urb failed %d",
 905                                 __func__, err);
 906         }
 907
 908         option_setup_urbs(serial);
 909
 910         return (0);
 911
 912 bail_out_error2:
 913         for (j = 0; j < N_OUT_URB; j++)
 914                 kfree(portdata->out_buffer[j]);
 915 bail_out_error:
 916         for (j = 0; j < N_IN_URB; j++)
 917                 if (portdata->in_buffer[j])
 918                         free_page((unsigned long)portdata->in_buffer[j]);
 919         kfree(portdata);
 920         return 1;
 921 }
 922
 923 static void option_shutdown(struct usb_serial *serial)
 924 {
 925         int i, j;
 926         struct usb_serial_port *port;
 927         struct option_port_private *portdata;
 928
 929         dbg("%s", __func__);
 930
 931         /* Stop reading/writing urbs */
 932         for (i = 0; i < serial->num_ports; ++i) {
 933                 port = serial->port[i];
 934                 portdata = usb_get_serial_port_data(port);
 935                 for (j = 0; j < N_IN_URB; j++)
 936                         usb_kill_urb(portdata->in_urbs[j]);
 937                 for (j = 0; j < N_OUT_URB; j++)
 938                         usb_kill_urb(portdata->out_urbs[j]);
 939         }
 940
 941         /* Now free them */
 942         for (i = 0; i < serial->num_ports; ++i) {
 943                 port = serial->port[i];
 944                 portdata = usb_get_serial_port_data(port);
 945
 946                 for (j = 0; j < N_IN_URB; j++) {
 947                         if (portdata->in_urbs[j]) {
 948                                 usb_free_urb(portdata->in_urbs[j]);
 949                                 free_page((unsigned long)portdata->in_buffer[j]);
 950                                 portdata->in_urbs[j] = NULL;
 951                         }
 952                 }
 953                 for (j = 0; j < N_OUT_URB; j++) {
 954                         if (portdata->out_urbs[j]) {
 955                                 usb_free_urb(portdata->out_urbs[j]);
 956                                 kfree(portdata->out_buffer[j]);
 957                                 portdata->out_urbs[j] = NULL;
 958                         }
 959                 }
 960         }
 961
 962         /* Now free per port private data */
 963         for (i = 0; i < serial->num_ports; i++) {
 964                 port = serial->port[i];
 965                 kfree(usb_get_serial_port_data(port));
 966         }
 967 }
 968
 969 MODULE_AUTHOR(DRIVER_AUTHOR);
 970 MODULE_DESCRIPTION(DRIVER_DESC);
 971 MODULE_VERSION(DRIVER_VERSION);
 972 MODULE_LICENSE("GPL");
 973
 974 #ifdef CONFIG_USB_DEBUG
 975 module_param(debug, bool, S_IRUGO | S_IWUSR);
 976 MODULE_PARM_DESC(debug, "Debug messages");
 977 #endif
 978