SAFE public projects git trees. - safe/jmp/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_KPC650                  0x17da
 177 #define KYOCERA_PRODUCT_KPC680                  0x180a
 178
 179 #define ANYDATA_VENDOR_ID                       0x16d5
 180 #define ANYDATA_PRODUCT_ADU_E100A               0x6501
 181 #define ANYDATA_PRODUCT_ADU_500A                0x6502
 182
 183 #define AXESSTEL_VENDOR_ID                      0x1726
 184 #define AXESSTEL_PRODUCT_MV110H                 0x1000
 185
 186 #define ONDA_VENDOR_ID                          0x19d2
 187 #define ONDA_PRODUCT_MSA501HS                   0x0001
 188 #define ONDA_PRODUCT_ET502HS                    0x0002
 189
 190 #define BANDRICH_VENDOR_ID                      0x1A8D
 191 #define BANDRICH_PRODUCT_C100_1                 0x1002
 192 #define BANDRICH_PRODUCT_C100_2                 0x1003
 193
 194 #define AMOI_VENDOR_ID                  0x1614
 195 #define AMOI_PRODUCT_9508                       0x0800
 196
 197 #define QUALCOMM_VENDOR_ID                      0x05C6
 198
 199 #define MAXON_VENDOR_ID                         0x16d8
 200
 201 #define TELIT_VENDOR_ID                         0x1bc7
 202 #define TELIT_PRODUCT_UC864E                    0x1003
 203
 204 static struct usb_device_id option_ids[] = {
 205         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
 206         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
 207         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
 208         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD) },
 209         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD_LIGHT) },
 210         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS) },
 211         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_LIGHT) },
 212         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD) },
 213         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT) },
 214         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
 215         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA_BUS) },
 216         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER) },
 217         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER_BUS) },
 218         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX_READY) },
 219         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX) },
 220         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_LIGHT) },
 221         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_GT) },
 222         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_EX) },
 223         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_LIGHT) },
 224         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_GT) },
 225         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_EX) },
 226         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_MODEM) },
 227         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_NETWORK) },
 228         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_MODEM) },
 229         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_NETWORK) },
 230         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM) },
 231         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK) },
 232         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_LITE) },
 233         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) },
 234         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) },
 235         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_LITE) },
 236         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_GT) },
 237         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_EX) },
 238         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) },
 239         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_NETWORK) },
 240         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600, 0xff, 0xff, 0xff) },
 241         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220, 0xff, 0xff, 0xff) },
 242         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS, 0xff, 0xff, 0xff) },
 243         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1401, 0xff, 0xff, 0xff) },
 244         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1403, 0xff, 0xff, 0xff) },
 245         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1405, 0xff, 0xff, 0xff) },
 246         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1406, 0xff, 0xff, 0xff) },
 247         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1408, 0xff, 0xff, 0xff) },
 248         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1409, 0xff, 0xff, 0xff) },
 249         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1410, 0xff, 0xff, 0xff) },
 250         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1411, 0xff, 0xff, 0xff) },
 251         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1412, 0xff, 0xff, 0xff) },
 252         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1413, 0xff, 0xff, 0xff) },
 253         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1414, 0xff, 0xff, 0xff) },
 254         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1415, 0xff, 0xff, 0xff) },
 255         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1416, 0xff, 0xff, 0xff) },
 256         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1417, 0xff, 0xff, 0xff) },
 257         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1418, 0xff, 0xff, 0xff) },
 258         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1419, 0xff, 0xff, 0xff) },
 259         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_9508) },
 260         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */
 261         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */
 262         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) }, /* Novatel Merlin EX720/V740/X720 */
 263         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V720) }, /* Novatel Merlin V720/S720/PC720 */
 264         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U730) }, /* Novatel U730/U740 (VF version) */
 265         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U740) }, /* Novatel U740 */
 266         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U870) }, /* Novatel U870 */
 267         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_XU870) }, /* Novatel Merlin XU870 HSDPA/3G */
 268         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_X950D) }, /* Novatel X950D */
 269         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EV620) }, /* Novatel EV620/ES620 CDMA/EV-DO */
 270         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES720) }, /* Novatel ES620/ES720/U720/USB720 */
 271         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E725) }, /* Novatel E725/E726 */
 272         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES620) }, /* Novatel Merlin ES620 SM Bus */
 273         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU730) }, /* Novatel EU730 and Vodafone EU740 */
 274         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU740) }, /* Novatel non-Vodafone EU740 */
 275         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) }, /* Novatel EU850D/EU860D/EU870D */
 276         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) }, /* Novatel MC930D/MC950D */
 277         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) }, /* Novatel MC727/U727/USB727 */
 278         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_1) }, /* Novatel EVDO product */
 279         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_1) }, /* Novatel HSPA product */
 280         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_1) }, /* Novatel Embedded product */
 281         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_1) }, /* Novatel Global product */
 282         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_2) }, /* Novatel EVDO product */
 283         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_2) }, /* Novatel HSPA product */
 284         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_2) }, /* Novatel Embedded product */
 285         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_2) }, /* Novatel Global product */
 286
 287         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01) },
 288         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01A) },
 289         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H02) },
 290
 291         { USB_DEVICE(DELL_VENDOR_ID, 0x8114) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */
 292         { USB_DEVICE(DELL_VENDOR_ID, 0x8115) }, /* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 293         { USB_DEVICE(DELL_VENDOR_ID, 0x8116) }, /* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 294         { USB_DEVICE(DELL_VENDOR_ID, 0x8117) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO ExpressCard == Novatel Merlin XV620 CDMA/EV-DO */
 295         { USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard == Novatel Merlin XU870 HSDPA/3G */
 296         { USB_DEVICE(DELL_VENDOR_ID, 0x8128) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite E720 CDMA/EV-DO */
 297         { USB_DEVICE(DELL_VENDOR_ID, 0x8129) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite ET620 CDMA/EV-DO */
 298         { USB_DEVICE(DELL_VENDOR_ID, 0x8133) }, /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
 299         { USB_DEVICE(DELL_VENDOR_ID, 0x8136) }, /* Dell Wireless HSDPA 5520 == Novatel Expedite EU860D */
 300         { USB_DEVICE(DELL_VENDOR_ID, 0x8137) }, /* Dell Wireless HSDPA 5520 */
 301         { USB_DEVICE(DELL_VENDOR_ID, 0x8138) }, /* Dell Wireless 5520 Voda I Mobile Broadband (3G HSDPA) Minicard */
 302         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },
 303         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
 304         { USB_DEVICE(AXESSTEL_VENDOR_ID, AXESSTEL_PRODUCT_MV110H) },
 305         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_MSA501HS) },
 306         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_ET502HS) },
 307         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
 308         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
 309         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC650) },
 310         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
 311         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */
 312         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
 313         { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */
 314         { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864E) },
 315         { } /* Terminating entry */
 316 };
 317 MODULE_DEVICE_TABLE(usb, option_ids);
 318
 319 static struct usb_driver option_driver = {
 320         .name       = "option",
 321         .probe      = usb_serial_probe,
 322         .disconnect = usb_serial_disconnect,
 323         .id_table   = option_ids,
 324         .no_dynamic_id =        1,
 325 };
 326
 327 /* The card has three separate interfaces, which the serial driver
 328  * recognizes separately, thus num_port=1.
 329  */
 330
 331 static struct usb_serial_driver option_1port_device = {
 332         .driver = {
 333                 .owner =        THIS_MODULE,
 334                 .name =         "option1",
 335         },
 336         .description       = "GSM modem (1-port)",
 337         .usb_driver        = &option_driver,
 338         .id_table          = option_ids,
 339         .num_ports         = 1,
 340         .open              = option_open,
 341         .close             = option_close,
 342         .write             = option_write,
 343         .write_room        = option_write_room,
 344         .chars_in_buffer   = option_chars_in_buffer,
 345         .throttle          = option_rx_throttle,
 346         .unthrottle        = option_rx_unthrottle,
 347         .ioctl             = option_ioctl,
 348         .set_termios       = option_set_termios,
 349         .break_ctl         = option_break_ctl,
 350         .tiocmget          = option_tiocmget,
 351         .tiocmset          = option_tiocmset,
 352         .attach            = option_startup,
 353         .shutdown          = option_shutdown,
 354         .read_int_callback = option_instat_callback,
 355 };
 356
 357 #ifdef CONFIG_USB_DEBUG
 358 static int debug;
 359 #else
 360 #define debug 0
 361 #endif
 362
 363 /* per port private data */
 364
 365 #define N_IN_URB 4
 366 #define N_OUT_URB 1
 367 #define IN_BUFLEN 4096
 368 #define OUT_BUFLEN 128
 369
 370 struct option_port_private {
 371         /* Input endpoints and buffer for this port */
 372         struct urb *in_urbs[N_IN_URB];
 373         u8 *in_buffer[N_IN_URB];
 374         /* Output endpoints and buffer for this port */
 375         struct urb *out_urbs[N_OUT_URB];
 376         u8 *out_buffer[N_OUT_URB];
 377         unsigned long out_busy;         /* Bit vector of URBs in use */
 378
 379         /* Settings for the port */
 380         int rts_state;  /* Handshaking pins (outputs) */
 381         int dtr_state;
 382         int cts_state;  /* Handshaking pins (inputs) */
 383         int dsr_state;
 384         int dcd_state;
 385         int ri_state;
 386
 387         unsigned long tx_start_time[N_OUT_URB];
 388 };
 389
 390 /* Functions used by new usb-serial code. */
 391 static int __init option_init(void)
 392 {
 393         int retval;
 394         retval = usb_serial_register(&option_1port_device);
 395         if (retval)
 396                 goto failed_1port_device_register;
 397         retval = usb_register(&option_driver);
 398         if (retval)
 399                 goto failed_driver_register;
 400
 401         info(DRIVER_DESC ": " DRIVER_VERSION);
 402
 403         return 0;
 404
 405 failed_driver_register:
 406         usb_serial_deregister (&option_1port_device);
 407 failed_1port_device_register:
 408         return retval;
 409 }
 410
 411 static void __exit option_exit(void)
 412 {
 413         usb_deregister (&option_driver);
 414         usb_serial_deregister (&option_1port_device);
 415 }
 416
 417 module_init(option_init);
 418 module_exit(option_exit);
 419
 420 static void option_rx_throttle(struct usb_serial_port *port)
 421 {
 422         dbg("%s", __func__);
 423 }
 424
 425 static void option_rx_unthrottle(struct usb_serial_port *port)
 426 {
 427         dbg("%s", __func__);
 428 }
 429
 430 static void option_break_ctl(struct usb_serial_port *port, int break_state)
 431 {
 432         /* Unfortunately, I don't know how to send a break */
 433         dbg("%s", __func__);
 434 }
 435
 436 static void option_set_termios(struct usb_serial_port *port,
 437                         struct ktermios *old_termios)
 438 {
 439         dbg("%s", __func__);
 440         /* Doesn't support option setting */
 441         tty_termios_copy_hw(port->tty->termios, old_termios);
 442         option_send_setup(port);
 443 }
 444
 445 static int option_tiocmget(struct usb_serial_port *port, struct file *file)
 446 {
 447         unsigned int value;
 448         struct option_port_private *portdata;
 449
 450         portdata = usb_get_serial_port_data(port);
 451
 452         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
 453                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
 454                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
 455                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
 456                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
 457                 ((portdata->ri_state) ? TIOCM_RNG : 0);
 458
 459         return value;
 460 }
 461
 462 static int option_tiocmset(struct usb_serial_port *port, struct file *file,
 463                         unsigned int set, unsigned int clear)
 464 {
 465         struct option_port_private *portdata;
 466
 467         portdata = usb_get_serial_port_data(port);
 468
 469         /* FIXME: what locks portdata fields ? */
 470         if (set & TIOCM_RTS)
 471                 portdata->rts_state = 1;
 472         if (set & TIOCM_DTR)
 473                 portdata->dtr_state = 1;
 474
 475         if (clear & TIOCM_RTS)
 476                 portdata->rts_state = 0;
 477         if (clear & TIOCM_DTR)
 478                 portdata->dtr_state = 0;
 479         return option_send_setup(port);
 480 }
 481
 482 static int option_ioctl(struct usb_serial_port *port, struct file *file,
 483                         unsigned int cmd, unsigned long arg)
 484 {
 485         return -ENOIOCTLCMD;
 486 }
 487
 488 /* Write */
 489 static int option_write(struct usb_serial_port *port,
 490                         const unsigned char *buf, int count)
 491 {
 492         struct option_port_private *portdata;
 493         int i;
 494         int left, todo;
 495         struct urb *this_urb = NULL; /* spurious */
 496         int err;
 497
 498         portdata = usb_get_serial_port_data(port);
 499
 500         dbg("%s: write (%d chars)", __func__, count);
 501
 502         i = 0;
 503         left = count;
 504         for (i=0; left > 0 && i < N_OUT_URB; i++) {
 505                 todo = left;
 506                 if (todo > OUT_BUFLEN)
 507                         todo = OUT_BUFLEN;
 508
 509                 this_urb = portdata->out_urbs[i];
 510                 if (test_and_set_bit(i, &portdata->out_busy)) {
 511                         if (time_before(jiffies,
 512                                         portdata->tx_start_time[i] + 10 * HZ))
 513                                 continue;
 514                         usb_unlink_urb(this_urb);
 515                         continue;
 516                 }
 517                 if (this_urb->status != 0)
 518                         dbg("usb_write %p failed (err=%d)",
 519                                 this_urb, this_urb->status);
 520
 521                 dbg("%s: endpoint %d buf %d", __func__,
 522                         usb_pipeendpoint(this_urb->pipe), i);
 523
 524                 /* send the data */
 525                 memcpy (this_urb->transfer_buffer, buf, todo);
 526                 this_urb->transfer_buffer_length = todo;
 527
 528                 this_urb->dev = port->serial->dev;
 529                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 530                 if (err) {
 531                         dbg("usb_submit_urb %p (write bulk) failed "
 532                                 "(%d, has %d)", this_urb,
 533                                 err, this_urb->status);
 534                         clear_bit(i, &portdata->out_busy);
 535                         continue;
 536                 }
 537                 portdata->tx_start_time[i] = jiffies;
 538                 buf += todo;
 539                 left -= todo;
 540         }
 541
 542         count -= left;
 543         dbg("%s: wrote (did %d)", __func__, count);
 544         return count;
 545 }
 546
 547 static void option_indat_callback(struct urb *urb)
 548 {
 549         int err;
 550         int endpoint;
 551         struct usb_serial_port *port;
 552         struct tty_struct *tty;
 553         unsigned char *data = urb->transfer_buffer;
 554         int status = urb->status;
 555
 556         dbg("%s: %p", __func__, urb);
 557
 558         endpoint = usb_pipeendpoint(urb->pipe);
 559         port =  urb->context;
 560
 561         if (status) {
 562                 dbg("%s: nonzero status: %d on endpoint %02x.",
 563                     __func__, status, endpoint);
 564         } else {
 565                 tty = port->tty;
 566                 if (urb->actual_length) {
 567                         tty_buffer_request_room(tty, urb->actual_length);
 568                         tty_insert_flip_string(tty, data, urb->actual_length);
 569                         tty_flip_buffer_push(tty);
 570                 } else {
 571                         dbg("%s: empty read urb received", __func__);
 572                 }
 573
 574                 /* Resubmit urb so we continue receiving */
 575                 if (port->open_count && status != -ESHUTDOWN) {
 576                         err = usb_submit_urb(urb, GFP_ATOMIC);
 577                         if (err)
 578                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 579                                         "(%d)", __func__, err);
 580                 }
 581         }
 582         return;
 583 }
 584
 585 static void option_outdat_callback(struct urb *urb)
 586 {
 587         struct usb_serial_port *port;
 588         struct option_port_private *portdata;
 589         int i;
 590
 591         dbg("%s", __func__);
 592
 593         port =  urb->context;
 594
 595         usb_serial_port_softint(port);
 596
 597         portdata = usb_get_serial_port_data(port);
 598         for (i = 0; i < N_OUT_URB; ++i) {
 599                 if (portdata->out_urbs[i] == urb) {
 600                         smp_mb__before_clear_bit();
 601                         clear_bit(i, &portdata->out_busy);
 602                         break;
 603                 }
 604         }
 605 }
 606
 607 static void option_instat_callback(struct urb *urb)
 608 {
 609         int err;
 610         int status = urb->status;
 611         struct usb_serial_port *port =  urb->context;
 612         struct option_port_private *portdata = usb_get_serial_port_data(port);
 613         struct usb_serial *serial = port->serial;
 614
 615         dbg("%s", __func__);
 616         dbg("%s: urb %p port %p has data %p", __func__,urb,port,portdata);
 617
 618         if (status == 0) {
 619                 struct usb_ctrlrequest *req_pkt =
 620                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 621
 622                 if (!req_pkt) {
 623                         dbg("%s: NULL req_pkt\n", __func__);
 624                         return;
 625                 }
 626                 if ((req_pkt->bRequestType == 0xA1) &&
 627                                 (req_pkt->bRequest == 0x20)) {
 628                         int old_dcd_state;
 629                         unsigned char signals = *((unsigned char *)
 630                                         urb->transfer_buffer +
 631                                         sizeof(struct usb_ctrlrequest));
 632
 633                         dbg("%s: signal x%x", __func__, signals);
 634
 635                         old_dcd_state = portdata->dcd_state;
 636                         portdata->cts_state = 1;
 637                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 638                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 639                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 640
 641                         if (port->tty && !C_CLOCAL(port->tty) &&
 642                                         old_dcd_state && !portdata->dcd_state)
 643                                 tty_hangup(port->tty);
 644                 } else {
 645                         dbg("%s: type %x req %x", __func__,
 646                                 req_pkt->bRequestType,req_pkt->bRequest);
 647                 }
 648         } else
 649                 dbg("%s: error %d", __func__, status);
 650
 651         /* Resubmit urb so we continue receiving IRQ data */
 652         if (status != -ESHUTDOWN) {
 653                 urb->dev = serial->dev;
 654                 err = usb_submit_urb(urb, GFP_ATOMIC);
 655                 if (err)
 656                         dbg("%s: resubmit intr urb failed. (%d)",
 657                                 __func__, err);
 658         }
 659 }
 660
 661 static int option_write_room(struct usb_serial_port *port)
 662 {
 663         struct option_port_private *portdata;
 664         int i;
 665         int data_len = 0;
 666         struct urb *this_urb;
 667
 668         portdata = usb_get_serial_port_data(port);
 669
 670
 671         for (i=0; i < N_OUT_URB; i++) {
 672                 this_urb = portdata->out_urbs[i];
 673                 if (this_urb && !test_bit(i, &portdata->out_busy))
 674                         data_len += OUT_BUFLEN;
 675         }
 676
 677         dbg("%s: %d", __func__, data_len);
 678         return data_len;
 679 }
 680
 681 static int option_chars_in_buffer(struct usb_serial_port *port)
 682 {
 683         struct option_port_private *portdata;
 684         int i;
 685         int data_len = 0;
 686         struct urb *this_urb;
 687
 688         portdata = usb_get_serial_port_data(port);
 689
 690         for (i=0; i < N_OUT_URB; i++) {
 691                 this_urb = portdata->out_urbs[i];
 692                 /* FIXME: This locking is insufficient as this_urb may
 693                    go unused during the test */
 694                 if (this_urb && test_bit(i, &portdata->out_busy))
 695                         data_len += this_urb->transfer_buffer_length;
 696         }
 697         dbg("%s: %d", __func__, data_len);
 698         return data_len;
 699 }
 700
 701 static int option_open(struct usb_serial_port *port, struct file *filp)
 702 {
 703         struct option_port_private *portdata;
 704         struct usb_serial *serial = port->serial;
 705         int i, err;
 706         struct urb *urb;
 707
 708         portdata = usb_get_serial_port_data(port);
 709
 710         dbg("%s", __func__);
 711
 712         /* Set some sane defaults */
 713         portdata->rts_state = 1;
 714         portdata->dtr_state = 1;
 715
 716         /* Reset low level data toggle and start reading from endpoints */
 717         for (i = 0; i < N_IN_URB; i++) {
 718                 urb = portdata->in_urbs[i];
 719                 if (! urb)
 720                         continue;
 721                 if (urb->dev != serial->dev) {
 722                         dbg("%s: dev %p != %p", __func__,
 723                                 urb->dev, serial->dev);
 724                         continue;
 725                 }
 726
 727                 /*
 728                  * make sure endpoint data toggle is synchronized with the
 729                  * device
 730                  */
 731                 usb_clear_halt(urb->dev, urb->pipe);
 732
 733                 err = usb_submit_urb(urb, GFP_KERNEL);
 734                 if (err) {
 735                         dbg("%s: submit urb %d failed (%d) %d",
 736                                 __func__, i, err,
 737                                 urb->transfer_buffer_length);
 738                 }
 739         }
 740
 741         /* Reset low level data toggle on out endpoints */
 742         for (i = 0; i < N_OUT_URB; i++) {
 743                 urb = portdata->out_urbs[i];
 744                 if (! urb)
 745                         continue;
 746                 urb->dev = serial->dev;
 747                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 748                                 usb_pipeout(urb->pipe), 0); */
 749         }
 750
 751         port->tty->low_latency = 1;
 752
 753         option_send_setup(port);
 754
 755         return (0);
 756 }
 757
 758 static void option_close(struct usb_serial_port *port, struct file *filp)
 759 {
 760         int i;
 761         struct usb_serial *serial = port->serial;
 762         struct option_port_private *portdata;
 763
 764         dbg("%s", __func__);
 765         portdata = usb_get_serial_port_data(port);
 766
 767         portdata->rts_state = 0;
 768         portdata->dtr_state = 0;
 769
 770         if (serial->dev) {
 771                 mutex_lock(&serial->disc_mutex);
 772                 if (!serial->disconnected)
 773                         option_send_setup(port);
 774                 mutex_unlock(&serial->disc_mutex);
 775
 776                 /* Stop reading/writing urbs */
 777                 for (i = 0; i < N_IN_URB; i++)
 778                         usb_kill_urb(portdata->in_urbs[i]);
 779                 for (i = 0; i < N_OUT_URB; i++)
 780                         usb_kill_urb(portdata->out_urbs[i]);
 781         }
 782         port->tty = NULL;
 783 }
 784
 785 /* Helper functions used by option_setup_urbs */
 786 static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
 787                 int dir, void *ctx, char *buf, int len,
 788                 void (*callback)(struct urb *))
 789 {
 790         struct urb *urb;
 791
 792         if (endpoint == -1)
 793                 return NULL;            /* endpoint not needed */
 794
 795         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 796         if (urb == NULL) {
 797                 dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
 798                 return NULL;
 799         }
 800
 801                 /* Fill URB using supplied data. */
 802         usb_fill_bulk_urb(urb, serial->dev,
 803                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 804                       buf, len, callback, ctx);
 805
 806         return urb;
 807 }
 808
 809 /* Setup urbs */
 810 static void option_setup_urbs(struct usb_serial *serial)
 811 {
 812         int i,j;
 813         struct usb_serial_port *port;
 814         struct option_port_private *portdata;
 815
 816         dbg("%s", __func__);
 817
 818         for (i = 0; i < serial->num_ports; i++) {
 819                 port = serial->port[i];
 820                 portdata = usb_get_serial_port_data(port);
 821
 822         /* Do indat endpoints first */
 823                 for (j = 0; j < N_IN_URB; ++j) {
 824                         portdata->in_urbs[j] = option_setup_urb (serial,
 825                         port->bulk_in_endpointAddress, USB_DIR_IN, port,
 826                         portdata->in_buffer[j], IN_BUFLEN, option_indat_callback);
 827                 }
 828
 829                 /* outdat endpoints */
 830                 for (j = 0; j < N_OUT_URB; ++j) {
 831                         portdata->out_urbs[j] = option_setup_urb (serial,
 832                         port->bulk_out_endpointAddress, USB_DIR_OUT, port,
 833                         portdata->out_buffer[j], OUT_BUFLEN, option_outdat_callback);
 834                 }
 835         }
 836 }
 837
 838
 839 /** send RTS/DTR state to the port.
 840  *
 841  * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
 842  * CDC.
 843 */
 844 static int option_send_setup(struct usb_serial_port *port)
 845 {
 846         struct usb_serial *serial = port->serial;
 847         struct option_port_private *portdata;
 848         int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
 849         dbg("%s", __func__);
 850
 851         portdata = usb_get_serial_port_data(port);
 852
 853         if (port->tty) {
 854                 int val = 0;
 855                 if (portdata->dtr_state)
 856                         val |= 0x01;
 857                 if (portdata->rts_state)
 858                         val |= 0x02;
 859
 860                 return usb_control_msg(serial->dev,
 861                                 usb_rcvctrlpipe(serial->dev, 0),
 862                                 0x22,0x21,val,ifNum,NULL,0,USB_CTRL_SET_TIMEOUT);
 863         }
 864
 865         return 0;
 866 }
 867
 868 static int option_startup(struct usb_serial *serial)
 869 {
 870         int i, j, err;
 871         struct usb_serial_port *port;
 872         struct option_port_private *portdata;
 873         u8 *buffer;
 874
 875         dbg("%s", __func__);
 876
 877         /* Now setup per port private data */
 878         for (i = 0; i < serial->num_ports; i++) {
 879                 port = serial->port[i];
 880                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
 881                 if (!portdata) {
 882                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
 883                                         __func__, i);
 884                         return (1);
 885                 }
 886
 887                 for (j = 0; j < N_IN_URB; j++) {
 888                         buffer = (u8 *)__get_free_page(GFP_KERNEL);
 889                         if (!buffer)
 890                                 goto bail_out_error;
 891                         portdata->in_buffer[j] = buffer;
 892                 }
 893
 894                 for (j = 0; j < N_OUT_URB; j++) {
 895                         buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
 896                         if (!buffer)
 897                                 goto bail_out_error2;
 898                         portdata->out_buffer[j] = buffer;
 899                 }
 900
 901                 usb_set_serial_port_data(port, portdata);
 902
 903                 if (! port->interrupt_in_urb)
 904                         continue;
 905                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 906                 if (err)
 907                         dbg("%s: submit irq_in urb failed %d",
 908                                 __func__, err);
 909         }
 910
 911         option_setup_urbs(serial);
 912
 913         return (0);
 914
 915 bail_out_error2:
 916         for (j = 0; j < N_OUT_URB; j++)
 917                 kfree(portdata->out_buffer[j]);
 918 bail_out_error:
 919         for (j = 0; j < N_IN_URB; j++)
 920                 if (portdata->in_buffer[j])
 921                         free_page((unsigned long)portdata->in_buffer[j]);
 922         kfree(portdata);
 923         return 1;
 924 }
 925
 926 static void option_shutdown(struct usb_serial *serial)
 927 {
 928         int i, j;
 929         struct usb_serial_port *port;
 930         struct option_port_private *portdata;
 931
 932         dbg("%s", __func__);
 933
 934         /* Stop reading/writing urbs */
 935         for (i = 0; i < serial->num_ports; ++i) {
 936                 port = serial->port[i];
 937                 portdata = usb_get_serial_port_data(port);
 938                 for (j = 0; j < N_IN_URB; j++)
 939                         usb_kill_urb(portdata->in_urbs[j]);
 940                 for (j = 0; j < N_OUT_URB; j++)
 941                         usb_kill_urb(portdata->out_urbs[j]);
 942         }
 943
 944         /* Now free them */
 945         for (i = 0; i < serial->num_ports; ++i) {
 946                 port = serial->port[i];
 947                 portdata = usb_get_serial_port_data(port);
 948
 949                 for (j = 0; j < N_IN_URB; j++) {
 950                         if (portdata->in_urbs[j]) {
 951                                 usb_free_urb(portdata->in_urbs[j]);
 952                                 free_page((unsigned long)portdata->in_buffer[j]);
 953                                 portdata->in_urbs[j] = NULL;
 954                         }
 955                 }
 956                 for (j = 0; j < N_OUT_URB; j++) {
 957                         if (portdata->out_urbs[j]) {
 958                                 usb_free_urb(portdata->out_urbs[j]);
 959                                 kfree(portdata->out_buffer[j]);
 960                                 portdata->out_urbs[j] = NULL;
 961                         }
 962                 }
 963         }
 964
 965         /* Now free per port private data */
 966         for (i = 0; i < serial->num_ports; i++) {
 967                 port = serial->port[i];
 968                 kfree(usb_get_serial_port_data(port));
 969         }
 970 }
 971
 972 MODULE_AUTHOR(DRIVER_AUTHOR);
 973 MODULE_DESCRIPTION(DRIVER_DESC);
 974 MODULE_VERSION(DRIVER_VERSION);
 975 MODULE_LICENSE("GPL");
 976
 977 #ifdef CONFIG_USB_DEBUG
 978 module_param(debug, bool, S_IRUGO | S_IWUSR);
 979 MODULE_PARM_DESC(debug, "Debug messages");
 980 #endif
 981