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 #define NOVATELWIRELESS_PRODUCT_U727            0x5010
 158
 159 /* FUTURE NOVATEL PRODUCTS */
 160 #define NOVATELWIRELESS_PRODUCT_EVDO_1          0x6000
 161 #define NOVATELWIRELESS_PRODUCT_HSPA_1          0x7000
 162 #define NOVATELWIRELESS_PRODUCT_EMBEDDED_1      0x8000
 163 #define NOVATELWIRELESS_PRODUCT_GLOBAL_1        0x9000
 164 #define NOVATELWIRELESS_PRODUCT_EVDO_2          0x6001
 165 #define NOVATELWIRELESS_PRODUCT_HSPA_2          0x7001
 166 #define NOVATELWIRELESS_PRODUCT_EMBEDDED_2      0x8001
 167 #define NOVATELWIRELESS_PRODUCT_GLOBAL_2        0x9001
 168
 169 /* AMOI PRODUCTS */
 170 #define AMOI_VENDOR_ID                          0x1614
 171 #define AMOI_PRODUCT_H01                        0x0800
 172 #define AMOI_PRODUCT_H01A                       0x7002
 173 #define AMOI_PRODUCT_H02                        0x0802
 174
 175 #define DELL_VENDOR_ID                          0x413C
 176
 177 #define KYOCERA_VENDOR_ID                       0x0c88
 178 #define KYOCERA_PRODUCT_KPC680                  0x180a
 179
 180 #define ANYDATA_VENDOR_ID                       0x16d5
 181 #define ANYDATA_PRODUCT_ADU_E100A               0x6501
 182 #define ANYDATA_PRODUCT_ADU_500A                0x6502
 183
 184 #define AXESSTEL_VENDOR_ID                      0x1726
 185 #define AXESSTEL_PRODUCT_MV110H                 0x1000
 186
 187 #define BANDRICH_VENDOR_ID                      0x1A8D
 188 #define BANDRICH_PRODUCT_C100_1                 0x1002
 189 #define BANDRICH_PRODUCT_C100_2                 0x1003
 190
 191 #define AMOI_VENDOR_ID                  0x1614
 192 #define AMOI_PRODUCT_9508                       0x0800
 193
 194 #define QUALCOMM_VENDOR_ID                      0x05C6
 195
 196 #define MAXON_VENDOR_ID                         0x16d8
 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(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600) },
 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(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1401) },
 238         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1403) },
 239         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1405) },
 240         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1406) },
 241         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1408) },
 242         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1409) },
 243         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1410) },
 244         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1411) },
 245         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1412) },
 246         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1413) },
 247         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1414) },
 248         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1415) },
 249         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1416) },
 250         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1417) },
 251         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1418) },
 252         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1419) },
 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_U727) }, /* Novatel U727 */
 273         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_1) }, /* Novatel EVDO product */
 274         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_1) }, /* Novatel HSPA product */
 275         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_1) }, /* Novatel Embedded product */
 276         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_1) }, /* Novatel Global product */
 277         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_2) }, /* Novatel EVDO product */
 278         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_2) }, /* Novatel HSPA product */
 279         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_2) }, /* Novatel Embedded product */
 280         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_2) }, /* Novatel Global product */
 281
 282         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01) },
 283         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01A) },
 284         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H02) },
 285
 286         { USB_DEVICE(DELL_VENDOR_ID, 0x8114) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */
 287         { USB_DEVICE(DELL_VENDOR_ID, 0x8115) }, /* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 288         { USB_DEVICE(DELL_VENDOR_ID, 0x8116) }, /* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 289         { USB_DEVICE(DELL_VENDOR_ID, 0x8117) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO ExpressCard == Novatel Merlin XV620 CDMA/EV-DO */
 290         { USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard == Novatel Merlin XU870 HSDPA/3G */
 291         { USB_DEVICE(DELL_VENDOR_ID, 0x8128) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite E720 CDMA/EV-DO */
 292         { USB_DEVICE(DELL_VENDOR_ID, 0x8129) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite ET620 CDMA/EV-DO */
 293         { USB_DEVICE(DELL_VENDOR_ID, 0x8133) }, /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
 294         { USB_DEVICE(DELL_VENDOR_ID, 0x8136) }, /* Dell Wireless HSDPA 5520 == Novatel Expedite EU860D */
 295         { USB_DEVICE(DELL_VENDOR_ID, 0x8137) }, /* Dell Wireless HSDPA 5520 */
 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(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
 300         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
 301         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
 302         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
 303         { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */
 304         { } /* Terminating entry */
 305 };
 306 MODULE_DEVICE_TABLE(usb, option_ids);
 307
 308 static struct usb_driver option_driver = {
 309         .name       = "option",
 310         .probe      = usb_serial_probe,
 311         .disconnect = usb_serial_disconnect,
 312         .id_table   = option_ids,
 313         .no_dynamic_id =        1,
 314 };
 315
 316 /* The card has three separate interfaces, which the serial driver
 317  * recognizes separately, thus num_port=1.
 318  */
 319
 320 static struct usb_serial_driver option_1port_device = {
 321         .driver = {
 322                 .owner =        THIS_MODULE,
 323                 .name =         "option1",
 324         },
 325         .description       = "GSM modem (1-port)",
 326         .usb_driver        = &option_driver,
 327         .id_table          = option_ids,
 328         .num_ports         = 1,
 329         .open              = option_open,
 330         .close             = option_close,
 331         .write             = option_write,
 332         .write_room        = option_write_room,
 333         .chars_in_buffer   = option_chars_in_buffer,
 334         .throttle          = option_rx_throttle,
 335         .unthrottle        = option_rx_unthrottle,
 336         .ioctl             = option_ioctl,
 337         .set_termios       = option_set_termios,
 338         .break_ctl         = option_break_ctl,
 339         .tiocmget          = option_tiocmget,
 340         .tiocmset          = option_tiocmset,
 341         .attach            = option_startup,
 342         .shutdown          = option_shutdown,
 343         .read_int_callback = option_instat_callback,
 344 };
 345
 346 #ifdef CONFIG_USB_DEBUG
 347 static int debug;
 348 #else
 349 #define debug 0
 350 #endif
 351
 352 /* per port private data */
 353
 354 #define N_IN_URB 4
 355 #define N_OUT_URB 1
 356 #define IN_BUFLEN 4096
 357 #define OUT_BUFLEN 128
 358
 359 struct option_port_private {
 360         /* Input endpoints and buffer for this port */
 361         struct urb *in_urbs[N_IN_URB];
 362         u8 *in_buffer[N_IN_URB];
 363         /* Output endpoints and buffer for this port */
 364         struct urb *out_urbs[N_OUT_URB];
 365         u8 *out_buffer[N_OUT_URB];
 366         unsigned long out_busy;         /* Bit vector of URBs in use */
 367
 368         /* Settings for the port */
 369         int rts_state;  /* Handshaking pins (outputs) */
 370         int dtr_state;
 371         int cts_state;  /* Handshaking pins (inputs) */
 372         int dsr_state;
 373         int dcd_state;
 374         int ri_state;
 375
 376         unsigned long tx_start_time[N_OUT_URB];
 377 };
 378
 379 /* Functions used by new usb-serial code. */
 380 static int __init option_init(void)
 381 {
 382         int retval;
 383         retval = usb_serial_register(&option_1port_device);
 384         if (retval)
 385                 goto failed_1port_device_register;
 386         retval = usb_register(&option_driver);
 387         if (retval)
 388                 goto failed_driver_register;
 389
 390         info(DRIVER_DESC ": " DRIVER_VERSION);
 391
 392         return 0;
 393
 394 failed_driver_register:
 395         usb_serial_deregister (&option_1port_device);
 396 failed_1port_device_register:
 397         return retval;
 398 }
 399
 400 static void __exit option_exit(void)
 401 {
 402         usb_deregister (&option_driver);
 403         usb_serial_deregister (&option_1port_device);
 404 }
 405
 406 module_init(option_init);
 407 module_exit(option_exit);
 408
 409 static void option_rx_throttle(struct usb_serial_port *port)
 410 {
 411         dbg("%s", __FUNCTION__);
 412 }
 413
 414 static void option_rx_unthrottle(struct usb_serial_port *port)
 415 {
 416         dbg("%s", __FUNCTION__);
 417 }
 418
 419 static void option_break_ctl(struct usb_serial_port *port, int break_state)
 420 {
 421         /* Unfortunately, I don't know how to send a break */
 422         dbg("%s", __FUNCTION__);
 423 }
 424
 425 static void option_set_termios(struct usb_serial_port *port,
 426                         struct ktermios *old_termios)
 427 {
 428         dbg("%s", __FUNCTION__);
 429         /* Doesn't support option setting */
 430         tty_termios_copy_hw(port->tty->termios, old_termios);
 431         option_send_setup(port);
 432 }
 433
 434 static int option_tiocmget(struct usb_serial_port *port, struct file *file)
 435 {
 436         unsigned int value;
 437         struct option_port_private *portdata;
 438
 439         portdata = usb_get_serial_port_data(port);
 440
 441         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
 442                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
 443                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
 444                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
 445                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
 446                 ((portdata->ri_state) ? TIOCM_RNG : 0);
 447
 448         return value;
 449 }
 450
 451 static int option_tiocmset(struct usb_serial_port *port, struct file *file,
 452                         unsigned int set, unsigned int clear)
 453 {
 454         struct option_port_private *portdata;
 455
 456         portdata = usb_get_serial_port_data(port);
 457
 458         /* FIXME: what locks portdata fields ? */
 459         if (set & TIOCM_RTS)
 460                 portdata->rts_state = 1;
 461         if (set & TIOCM_DTR)
 462                 portdata->dtr_state = 1;
 463
 464         if (clear & TIOCM_RTS)
 465                 portdata->rts_state = 0;
 466         if (clear & TIOCM_DTR)
 467                 portdata->dtr_state = 0;
 468         return option_send_setup(port);
 469 }
 470
 471 static int option_ioctl(struct usb_serial_port *port, struct file *file,
 472                         unsigned int cmd, unsigned long arg)
 473 {
 474         return -ENOIOCTLCMD;
 475 }
 476
 477 /* Write */
 478 static int option_write(struct usb_serial_port *port,
 479                         const unsigned char *buf, int count)
 480 {
 481         struct option_port_private *portdata;
 482         int i;
 483         int left, todo;
 484         struct urb *this_urb = NULL; /* spurious */
 485         int err;
 486
 487         portdata = usb_get_serial_port_data(port);
 488
 489         dbg("%s: write (%d chars)", __FUNCTION__, count);
 490
 491         i = 0;
 492         left = count;
 493         for (i=0; left > 0 && i < N_OUT_URB; i++) {
 494                 todo = left;
 495                 if (todo > OUT_BUFLEN)
 496                         todo = OUT_BUFLEN;
 497
 498                 this_urb = portdata->out_urbs[i];
 499                 if (test_and_set_bit(i, &portdata->out_busy)) {
 500                         if (time_before(jiffies,
 501                                         portdata->tx_start_time[i] + 10 * HZ))
 502                                 continue;
 503                         usb_unlink_urb(this_urb);
 504                         continue;
 505                 }
 506                 if (this_urb->status != 0)
 507                         dbg("usb_write %p failed (err=%d)",
 508                                 this_urb, this_urb->status);
 509
 510                 dbg("%s: endpoint %d buf %d", __FUNCTION__,
 511                         usb_pipeendpoint(this_urb->pipe), i);
 512
 513                 /* send the data */
 514                 memcpy (this_urb->transfer_buffer, buf, todo);
 515                 this_urb->transfer_buffer_length = todo;
 516
 517                 this_urb->dev = port->serial->dev;
 518                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 519                 if (err) {
 520                         dbg("usb_submit_urb %p (write bulk) failed "
 521                                 "(%d, has %d)", this_urb,
 522                                 err, this_urb->status);
 523                         clear_bit(i, &portdata->out_busy);
 524                         continue;
 525                 }
 526                 portdata->tx_start_time[i] = jiffies;
 527                 buf += todo;
 528                 left -= todo;
 529         }
 530
 531         count -= left;
 532         dbg("%s: wrote (did %d)", __FUNCTION__, count);
 533         return count;
 534 }
 535
 536 static void option_indat_callback(struct urb *urb)
 537 {
 538         int err;
 539         int endpoint;
 540         struct usb_serial_port *port;
 541         struct tty_struct *tty;
 542         unsigned char *data = urb->transfer_buffer;
 543         int status = urb->status;
 544
 545         dbg("%s: %p", __FUNCTION__, urb);
 546
 547         endpoint = usb_pipeendpoint(urb->pipe);
 548         port = (struct usb_serial_port *) urb->context;
 549
 550         if (status) {
 551                 dbg("%s: nonzero status: %d on endpoint %02x.",
 552                     __FUNCTION__, status, endpoint);
 553         } else {
 554                 tty = port->tty;
 555                 if (urb->actual_length) {
 556                         tty_buffer_request_room(tty, urb->actual_length);
 557                         tty_insert_flip_string(tty, data, urb->actual_length);
 558                         tty_flip_buffer_push(tty);
 559                 } else {
 560                         dbg("%s: empty read urb received", __FUNCTION__);
 561                 }
 562
 563                 /* Resubmit urb so we continue receiving */
 564                 if (port->open_count && status != -ESHUTDOWN) {
 565                         err = usb_submit_urb(urb, GFP_ATOMIC);
 566                         if (err)
 567                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 568                                         "(%d)", __FUNCTION__, err);
 569                 }
 570         }
 571         return;
 572 }
 573
 574 static void option_outdat_callback(struct urb *urb)
 575 {
 576         struct usb_serial_port *port;
 577         struct option_port_private *portdata;
 578         int i;
 579
 580         dbg("%s", __FUNCTION__);
 581
 582         port = (struct usb_serial_port *) urb->context;
 583
 584         usb_serial_port_softint(port);
 585
 586         portdata = usb_get_serial_port_data(port);
 587         for (i = 0; i < N_OUT_URB; ++i) {
 588                 if (portdata->out_urbs[i] == urb) {
 589                         smp_mb__before_clear_bit();
 590                         clear_bit(i, &portdata->out_busy);
 591                         break;
 592                 }
 593         }
 594 }
 595
 596 static void option_instat_callback(struct urb *urb)
 597 {
 598         int err;
 599         int status = urb->status;
 600         struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
 601         struct option_port_private *portdata = usb_get_serial_port_data(port);
 602         struct usb_serial *serial = port->serial;
 603
 604         dbg("%s", __FUNCTION__);
 605         dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata);
 606
 607         if (status == 0) {
 608                 struct usb_ctrlrequest *req_pkt =
 609                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 610
 611                 if (!req_pkt) {
 612                         dbg("%s: NULL req_pkt\n", __FUNCTION__);
 613                         return;
 614                 }
 615                 if ((req_pkt->bRequestType == 0xA1) &&
 616                                 (req_pkt->bRequest == 0x20)) {
 617                         int old_dcd_state;
 618                         unsigned char signals = *((unsigned char *)
 619                                         urb->transfer_buffer +
 620                                         sizeof(struct usb_ctrlrequest));
 621
 622                         dbg("%s: signal x%x", __FUNCTION__, signals);
 623
 624                         old_dcd_state = portdata->dcd_state;
 625                         portdata->cts_state = 1;
 626                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 627                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 628                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 629
 630                         if (port->tty && !C_CLOCAL(port->tty) &&
 631                                         old_dcd_state && !portdata->dcd_state)
 632                                 tty_hangup(port->tty);
 633                 } else {
 634                         dbg("%s: type %x req %x", __FUNCTION__,
 635                                 req_pkt->bRequestType,req_pkt->bRequest);
 636                 }
 637         } else
 638                 dbg("%s: error %d", __FUNCTION__, status);
 639
 640         /* Resubmit urb so we continue receiving IRQ data */
 641         if (status != -ESHUTDOWN) {
 642                 urb->dev = serial->dev;
 643                 err = usb_submit_urb(urb, GFP_ATOMIC);
 644                 if (err)
 645                         dbg("%s: resubmit intr urb failed. (%d)",
 646                                 __FUNCTION__, err);
 647         }
 648 }
 649
 650 static int option_write_room(struct usb_serial_port *port)
 651 {
 652         struct option_port_private *portdata;
 653         int i;
 654         int data_len = 0;
 655         struct urb *this_urb;
 656
 657         portdata = usb_get_serial_port_data(port);
 658
 659         for (i=0; i < N_OUT_URB; i++) {
 660                 this_urb = portdata->out_urbs[i];
 661                 if (this_urb && !test_bit(i, &portdata->out_busy))
 662                         data_len += OUT_BUFLEN;
 663         }
 664
 665         dbg("%s: %d", __FUNCTION__, data_len);
 666         return data_len;
 667 }
 668
 669 static int option_chars_in_buffer(struct usb_serial_port *port)
 670 {
 671         struct option_port_private *portdata;
 672         int i;
 673         int data_len = 0;
 674         struct urb *this_urb;
 675
 676         portdata = usb_get_serial_port_data(port);
 677
 678         for (i=0; i < N_OUT_URB; i++) {
 679                 this_urb = portdata->out_urbs[i];
 680                 if (this_urb && test_bit(i, &portdata->out_busy))
 681                         data_len += this_urb->transfer_buffer_length;
 682         }
 683         dbg("%s: %d", __FUNCTION__, data_len);
 684         return data_len;
 685 }
 686
 687 static int option_open(struct usb_serial_port *port, struct file *filp)
 688 {
 689         struct option_port_private *portdata;
 690         struct usb_serial *serial = port->serial;
 691         int i, err;
 692         struct urb *urb;
 693
 694         portdata = usb_get_serial_port_data(port);
 695
 696         dbg("%s", __FUNCTION__);
 697
 698         /* Set some sane defaults */
 699         portdata->rts_state = 1;
 700         portdata->dtr_state = 1;
 701
 702         /* Reset low level data toggle and start reading from endpoints */
 703         for (i = 0; i < N_IN_URB; i++) {
 704                 urb = portdata->in_urbs[i];
 705                 if (! urb)
 706                         continue;
 707                 if (urb->dev != serial->dev) {
 708                         dbg("%s: dev %p != %p", __FUNCTION__,
 709                                 urb->dev, serial->dev);
 710                         continue;
 711                 }
 712
 713                 /*
 714                  * make sure endpoint data toggle is synchronized with the
 715                  * device
 716                  */
 717                 usb_clear_halt(urb->dev, urb->pipe);
 718
 719                 err = usb_submit_urb(urb, GFP_KERNEL);
 720                 if (err) {
 721                         dbg("%s: submit urb %d failed (%d) %d",
 722                                 __FUNCTION__, i, err,
 723                                 urb->transfer_buffer_length);
 724                 }
 725         }
 726
 727         /* Reset low level data toggle on out endpoints */
 728         for (i = 0; i < N_OUT_URB; i++) {
 729                 urb = portdata->out_urbs[i];
 730                 if (! urb)
 731                         continue;
 732                 urb->dev = serial->dev;
 733                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 734                                 usb_pipeout(urb->pipe), 0); */
 735         }
 736
 737         port->tty->low_latency = 1;
 738
 739         option_send_setup(port);
 740
 741         return (0);
 742 }
 743
 744 static void option_close(struct usb_serial_port *port, struct file *filp)
 745 {
 746         int i;
 747         struct usb_serial *serial = port->serial;
 748         struct option_port_private *portdata;
 749
 750         dbg("%s", __FUNCTION__);
 751         portdata = usb_get_serial_port_data(port);
 752
 753         portdata->rts_state = 0;
 754         portdata->dtr_state = 0;
 755
 756         if (serial->dev) {
 757                 mutex_lock(&serial->disc_mutex);
 758                 if (!serial->disconnected)
 759                         option_send_setup(port);
 760                 mutex_unlock(&serial->disc_mutex);
 761
 762                 /* Stop reading/writing urbs */
 763                 for (i = 0; i < N_IN_URB; i++)
 764                         usb_kill_urb(portdata->in_urbs[i]);
 765                 for (i = 0; i < N_OUT_URB; i++)
 766                         usb_kill_urb(portdata->out_urbs[i]);
 767         }
 768         port->tty = NULL;
 769 }
 770
 771 /* Helper functions used by option_setup_urbs */
 772 static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
 773                 int dir, void *ctx, char *buf, int len,
 774                 void (*callback)(struct urb *))
 775 {
 776         struct urb *urb;
 777
 778         if (endpoint == -1)
 779                 return NULL;            /* endpoint not needed */
 780
 781         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 782         if (urb == NULL) {
 783                 dbg("%s: alloc for endpoint %d failed.", __FUNCTION__, endpoint);
 784                 return NULL;
 785         }
 786
 787                 /* Fill URB using supplied data. */
 788         usb_fill_bulk_urb(urb, serial->dev,
 789                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 790                       buf, len, callback, ctx);
 791
 792         return urb;
 793 }
 794
 795 /* Setup urbs */
 796 static void option_setup_urbs(struct usb_serial *serial)
 797 {
 798         int i,j;
 799         struct usb_serial_port *port;
 800         struct option_port_private *portdata;
 801
 802         dbg("%s", __FUNCTION__);
 803
 804         for (i = 0; i < serial->num_ports; i++) {
 805                 port = serial->port[i];
 806                 portdata = usb_get_serial_port_data(port);
 807
 808         /* Do indat endpoints first */
 809                 for (j = 0; j < N_IN_URB; ++j) {
 810                         portdata->in_urbs[j] = option_setup_urb (serial,
 811                         port->bulk_in_endpointAddress, USB_DIR_IN, port,
 812                         portdata->in_buffer[j], IN_BUFLEN, option_indat_callback);
 813                 }
 814
 815                 /* outdat endpoints */
 816                 for (j = 0; j < N_OUT_URB; ++j) {
 817                         portdata->out_urbs[j] = option_setup_urb (serial,
 818                         port->bulk_out_endpointAddress, USB_DIR_OUT, port,
 819                         portdata->out_buffer[j], OUT_BUFLEN, option_outdat_callback);
 820                 }
 821         }
 822 }
 823
 824
 825 /** send RTS/DTR state to the port.
 826  *
 827  * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
 828  * CDC.
 829 */
 830 static int option_send_setup(struct usb_serial_port *port)
 831 {
 832         struct usb_serial *serial = port->serial;
 833         struct option_port_private *portdata;
 834         int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
 835         dbg("%s", __FUNCTION__);
 836
 837         portdata = usb_get_serial_port_data(port);
 838
 839         if (port->tty) {
 840                 int val = 0;
 841                 if (portdata->dtr_state)
 842                         val |= 0x01;
 843                 if (portdata->rts_state)
 844                         val |= 0x02;
 845
 846                 return usb_control_msg(serial->dev,
 847                                 usb_rcvctrlpipe(serial->dev, 0),
 848                                 0x22,0x21,val,ifNum,NULL,0,USB_CTRL_SET_TIMEOUT);
 849         }
 850
 851         return 0;
 852 }
 853
 854 static int option_startup(struct usb_serial *serial)
 855 {
 856         int i, j, err;
 857         struct usb_serial_port *port;
 858         struct option_port_private *portdata;
 859         u8 *buffer;
 860
 861         dbg("%s", __FUNCTION__);
 862
 863         /* Now setup per port private data */
 864         for (i = 0; i < serial->num_ports; i++) {
 865                 port = serial->port[i];
 866                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
 867                 if (!portdata) {
 868                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
 869                                         __FUNCTION__, i);
 870                         return (1);
 871                 }
 872
 873                 for (j = 0; j < N_IN_URB; j++) {
 874                         buffer = (u8 *)__get_free_page(GFP_KERNEL);
 875                         if (!buffer)
 876                                 goto bail_out_error;
 877                         portdata->in_buffer[j] = buffer;
 878                 }
 879
 880                 for (j = 0; j < N_OUT_URB; j++) {
 881                         buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
 882                         if (!buffer)
 883                                 goto bail_out_error2;
 884                         portdata->out_buffer[j] = buffer;
 885                 }
 886
 887                 usb_set_serial_port_data(port, portdata);
 888
 889                 if (! port->interrupt_in_urb)
 890                         continue;
 891                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 892                 if (err)
 893                         dbg("%s: submit irq_in urb failed %d",
 894                                 __FUNCTION__, err);
 895         }
 896
 897         option_setup_urbs(serial);
 898
 899         return (0);
 900
 901 bail_out_error2:
 902         for (j = 0; j < N_OUT_URB; j++)
 903                 kfree(portdata->out_buffer[j]);
 904 bail_out_error:
 905         for (j = 0; j < N_IN_URB; j++)
 906                 if (portdata->in_buffer[j])
 907                         free_page((unsigned long)portdata->in_buffer[j]);
 908         kfree(portdata);
 909         return 1;
 910 }
 911
 912 static void option_shutdown(struct usb_serial *serial)
 913 {
 914         int i, j;
 915         struct usb_serial_port *port;
 916         struct option_port_private *portdata;
 917
 918         dbg("%s", __FUNCTION__);
 919
 920         /* Stop reading/writing urbs */
 921         for (i = 0; i < serial->num_ports; ++i) {
 922                 port = serial->port[i];
 923                 portdata = usb_get_serial_port_data(port);
 924                 for (j = 0; j < N_IN_URB; j++)
 925                         usb_kill_urb(portdata->in_urbs[j]);
 926                 for (j = 0; j < N_OUT_URB; j++)
 927                         usb_kill_urb(portdata->out_urbs[j]);
 928         }
 929
 930         /* Now free them */
 931         for (i = 0; i < serial->num_ports; ++i) {
 932                 port = serial->port[i];
 933                 portdata = usb_get_serial_port_data(port);
 934
 935                 for (j = 0; j < N_IN_URB; j++) {
 936                         if (portdata->in_urbs[j]) {
 937                                 usb_free_urb(portdata->in_urbs[j]);
 938                                 free_page((unsigned long)portdata->in_buffer[j]);
 939                                 portdata->in_urbs[j] = NULL;
 940                         }
 941                 }
 942                 for (j = 0; j < N_OUT_URB; j++) {
 943                         if (portdata->out_urbs[j]) {
 944                                 usb_free_urb(portdata->out_urbs[j]);
 945                                 kfree(portdata->out_buffer[j]);
 946                                 portdata->out_urbs[j] = NULL;
 947                         }
 948                 }
 949         }
 950
 951         /* Now free per port private data */
 952         for (i = 0; i < serial->num_ports; i++) {
 953                 port = serial->port[i];
 954                 kfree(usb_get_serial_port_data(port));
 955         }
 956 }
 957
 958 MODULE_AUTHOR(DRIVER_AUTHOR);
 959 MODULE_DESCRIPTION(DRIVER_DESC);
 960 MODULE_VERSION(DRIVER_VERSION);
 961 MODULE_LICENSE("GPL");
 962
 963 #ifdef CONFIG_USB_DEBUG
 964 module_param(debug, bool, S_IRUGO | S_IWUSR);
 965 MODULE_PARM_DESC(debug, "Debug messages");
 966 #endif
 967