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_ET502HS                    0x0002
 187
 188 #define BANDRICH_VENDOR_ID                      0x1A8D
 189 #define BANDRICH_PRODUCT_C100_1                 0x1002
 190 #define BANDRICH_PRODUCT_C100_2                 0x1003
 191
 192 #define AMOI_VENDOR_ID                  0x1614
 193 #define AMOI_PRODUCT_9508                       0x0800
 194
 195 #define QUALCOMM_VENDOR_ID                      0x05C6
 196
 197 #define MAXON_VENDOR_ID                         0x16d8
 198
 199 static struct usb_device_id option_ids[] = {
 200         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
 201         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
 202         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
 203         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD) },
 204         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD_LIGHT) },
 205         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS) },
 206         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_LIGHT) },
 207         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD) },
 208         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT) },
 209         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
 210         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA_BUS) },
 211         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER) },
 212         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER_BUS) },
 213         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX_READY) },
 214         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX) },
 215         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_LIGHT) },
 216         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_GT) },
 217         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_EX) },
 218         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_LIGHT) },
 219         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_GT) },
 220         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_EX) },
 221         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_MODEM) },
 222         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_NETWORK) },
 223         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_MODEM) },
 224         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_NETWORK) },
 225         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM) },
 226         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK) },
 227         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_LITE) },
 228         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) },
 229         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) },
 230         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_LITE) },
 231         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_GT) },
 232         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_EX) },
 233         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) },
 234         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_NETWORK) },
 235         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600) },
 236         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220, 0xff, 0xff, 0xff) },
 237         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS, 0xff, 0xff, 0xff) },
 238         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1401) },
 239         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1403) },
 240         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1405) },
 241         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1406) },
 242         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1408) },
 243         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1409) },
 244         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1410) },
 245         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1411) },
 246         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1412) },
 247         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1413) },
 248         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1414) },
 249         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1415) },
 250         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1416) },
 251         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1417) },
 252         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1418) },
 253         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1419) },
 254         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_9508) },
 255         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */
 256         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */
 257         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) }, /* Novatel Merlin EX720/V740/X720 */
 258         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V720) }, /* Novatel Merlin V720/S720/PC720 */
 259         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U730) }, /* Novatel U730/U740 (VF version) */
 260         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U740) }, /* Novatel U740 */
 261         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U870) }, /* Novatel U870 */
 262         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_XU870) }, /* Novatel Merlin XU870 HSDPA/3G */
 263         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_X950D) }, /* Novatel X950D */
 264         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EV620) }, /* Novatel EV620/ES620 CDMA/EV-DO */
 265         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES720) }, /* Novatel ES620/ES720/U720/USB720 */
 266         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E725) }, /* Novatel E725/E726 */
 267         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES620) }, /* Novatel Merlin ES620 SM Bus */
 268         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU730) }, /* Novatel EU730 and Vodafone EU740 */
 269         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU740) }, /* Novatel non-Vodafone EU740 */
 270         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) }, /* Novatel EU850D/EU860D/EU870D */
 271         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) }, /* Novatel MC930D/MC950D */
 272         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) }, /* Novatel MC727/U727/USB727 */
 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(ONDA_VENDOR_ID, ONDA_PRODUCT_ET502HS) },
 300         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
 301         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
 302         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
 303         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
 304         { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */
 305         { USB_DEVICE(0x19d2, 0x0001) },         /* Telstra NextG CDMA */
 306         { } /* Terminating entry */
 307 };
 308 MODULE_DEVICE_TABLE(usb, option_ids);
 309
 310 static struct usb_driver option_driver = {
 311         .name       = "option",
 312         .probe      = usb_serial_probe,
 313         .disconnect = usb_serial_disconnect,
 314         .id_table   = option_ids,
 315         .no_dynamic_id =        1,
 316 };
 317
 318 /* The card has three separate interfaces, which the serial driver
 319  * recognizes separately, thus num_port=1.
 320  */
 321
 322 static struct usb_serial_driver option_1port_device = {
 323         .driver = {
 324                 .owner =        THIS_MODULE,
 325                 .name =         "option1",
 326         },
 327         .description       = "GSM modem (1-port)",
 328         .usb_driver        = &option_driver,
 329         .id_table          = option_ids,
 330         .num_ports         = 1,
 331         .open              = option_open,
 332         .close             = option_close,
 333         .write             = option_write,
 334         .write_room        = option_write_room,
 335         .chars_in_buffer   = option_chars_in_buffer,
 336         .throttle          = option_rx_throttle,
 337         .unthrottle        = option_rx_unthrottle,
 338         .ioctl             = option_ioctl,
 339         .set_termios       = option_set_termios,
 340         .break_ctl         = option_break_ctl,
 341         .tiocmget          = option_tiocmget,
 342         .tiocmset          = option_tiocmset,
 343         .attach            = option_startup,
 344         .shutdown          = option_shutdown,
 345         .read_int_callback = option_instat_callback,
 346 };
 347
 348 #ifdef CONFIG_USB_DEBUG
 349 static int debug;
 350 #else
 351 #define debug 0
 352 #endif
 353
 354 /* per port private data */
 355
 356 #define N_IN_URB 4
 357 #define N_OUT_URB 1
 358 #define IN_BUFLEN 4096
 359 #define OUT_BUFLEN 128
 360
 361 struct option_port_private {
 362         /* Input endpoints and buffer for this port */
 363         struct urb *in_urbs[N_IN_URB];
 364         u8 *in_buffer[N_IN_URB];
 365         /* Output endpoints and buffer for this port */
 366         struct urb *out_urbs[N_OUT_URB];
 367         u8 *out_buffer[N_OUT_URB];
 368         unsigned long out_busy;         /* Bit vector of URBs in use */
 369
 370         /* Settings for the port */
 371         int rts_state;  /* Handshaking pins (outputs) */
 372         int dtr_state;
 373         int cts_state;  /* Handshaking pins (inputs) */
 374         int dsr_state;
 375         int dcd_state;
 376         int ri_state;
 377
 378         unsigned long tx_start_time[N_OUT_URB];
 379 };
 380
 381 /* Functions used by new usb-serial code. */
 382 static int __init option_init(void)
 383 {
 384         int retval;
 385         retval = usb_serial_register(&option_1port_device);
 386         if (retval)
 387                 goto failed_1port_device_register;
 388         retval = usb_register(&option_driver);
 389         if (retval)
 390                 goto failed_driver_register;
 391
 392         info(DRIVER_DESC ": " DRIVER_VERSION);
 393
 394         return 0;
 395
 396 failed_driver_register:
 397         usb_serial_deregister (&option_1port_device);
 398 failed_1port_device_register:
 399         return retval;
 400 }
 401
 402 static void __exit option_exit(void)
 403 {
 404         usb_deregister (&option_driver);
 405         usb_serial_deregister (&option_1port_device);
 406 }
 407
 408 module_init(option_init);
 409 module_exit(option_exit);
 410
 411 static void option_rx_throttle(struct usb_serial_port *port)
 412 {
 413         dbg("%s", __func__);
 414 }
 415
 416 static void option_rx_unthrottle(struct usb_serial_port *port)
 417 {
 418         dbg("%s", __func__);
 419 }
 420
 421 static void option_break_ctl(struct usb_serial_port *port, int break_state)
 422 {
 423         /* Unfortunately, I don't know how to send a break */
 424         dbg("%s", __func__);
 425 }
 426
 427 static void option_set_termios(struct usb_serial_port *port,
 428                         struct ktermios *old_termios)
 429 {
 430         dbg("%s", __func__);
 431         /* Doesn't support option setting */
 432         tty_termios_copy_hw(port->tty->termios, old_termios);
 433         option_send_setup(port);
 434 }
 435
 436 static int option_tiocmget(struct usb_serial_port *port, struct file *file)
 437 {
 438         unsigned int value;
 439         struct option_port_private *portdata;
 440
 441         portdata = usb_get_serial_port_data(port);
 442
 443         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
 444                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
 445                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
 446                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
 447                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
 448                 ((portdata->ri_state) ? TIOCM_RNG : 0);
 449
 450         return value;
 451 }
 452
 453 static int option_tiocmset(struct usb_serial_port *port, struct file *file,
 454                         unsigned int set, unsigned int clear)
 455 {
 456         struct option_port_private *portdata;
 457
 458         portdata = usb_get_serial_port_data(port);
 459
 460         /* FIXME: what locks portdata fields ? */
 461         if (set & TIOCM_RTS)
 462                 portdata->rts_state = 1;
 463         if (set & TIOCM_DTR)
 464                 portdata->dtr_state = 1;
 465
 466         if (clear & TIOCM_RTS)
 467                 portdata->rts_state = 0;
 468         if (clear & TIOCM_DTR)
 469                 portdata->dtr_state = 0;
 470         return option_send_setup(port);
 471 }
 472
 473 static int option_ioctl(struct usb_serial_port *port, struct file *file,
 474                         unsigned int cmd, unsigned long arg)
 475 {
 476         return -ENOIOCTLCMD;
 477 }
 478
 479 /* Write */
 480 static int option_write(struct usb_serial_port *port,
 481                         const unsigned char *buf, int count)
 482 {
 483         struct option_port_private *portdata;
 484         int i;
 485         int left, todo;
 486         struct urb *this_urb = NULL; /* spurious */
 487         int err;
 488
 489         portdata = usb_get_serial_port_data(port);
 490
 491         dbg("%s: write (%d chars)", __func__, count);
 492
 493         i = 0;
 494         left = count;
 495         for (i=0; left > 0 && i < N_OUT_URB; i++) {
 496                 todo = left;
 497                 if (todo > OUT_BUFLEN)
 498                         todo = OUT_BUFLEN;
 499
 500                 this_urb = portdata->out_urbs[i];
 501                 if (test_and_set_bit(i, &portdata->out_busy)) {
 502                         if (time_before(jiffies,
 503                                         portdata->tx_start_time[i] + 10 * HZ))
 504                                 continue;
 505                         usb_unlink_urb(this_urb);
 506                         continue;
 507                 }
 508                 if (this_urb->status != 0)
 509                         dbg("usb_write %p failed (err=%d)",
 510                                 this_urb, this_urb->status);
 511
 512                 dbg("%s: endpoint %d buf %d", __func__,
 513                         usb_pipeendpoint(this_urb->pipe), i);
 514
 515                 /* send the data */
 516                 memcpy (this_urb->transfer_buffer, buf, todo);
 517                 this_urb->transfer_buffer_length = todo;
 518
 519                 this_urb->dev = port->serial->dev;
 520                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 521                 if (err) {
 522                         dbg("usb_submit_urb %p (write bulk) failed "
 523                                 "(%d, has %d)", this_urb,
 524                                 err, this_urb->status);
 525                         clear_bit(i, &portdata->out_busy);
 526                         continue;
 527                 }
 528                 portdata->tx_start_time[i] = jiffies;
 529                 buf += todo;
 530                 left -= todo;
 531         }
 532
 533         count -= left;
 534         dbg("%s: wrote (did %d)", __func__, count);
 535         return count;
 536 }
 537
 538 static void option_indat_callback(struct urb *urb)
 539 {
 540         int err;
 541         int endpoint;
 542         struct usb_serial_port *port;
 543         struct tty_struct *tty;
 544         unsigned char *data = urb->transfer_buffer;
 545         int status = urb->status;
 546
 547         dbg("%s: %p", __func__, urb);
 548
 549         endpoint = usb_pipeendpoint(urb->pipe);
 550         port =  urb->context;
 551
 552         if (status) {
 553                 dbg("%s: nonzero status: %d on endpoint %02x.",
 554                     __func__, status, endpoint);
 555         } else {
 556                 tty = port->tty;
 557                 if (urb->actual_length) {
 558                         tty_buffer_request_room(tty, urb->actual_length);
 559                         tty_insert_flip_string(tty, data, urb->actual_length);
 560                         tty_flip_buffer_push(tty);
 561                 } else {
 562                         dbg("%s: empty read urb received", __func__);
 563                 }
 564
 565                 /* Resubmit urb so we continue receiving */
 566                 if (port->open_count && status != -ESHUTDOWN) {
 567                         err = usb_submit_urb(urb, GFP_ATOMIC);
 568                         if (err)
 569                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 570                                         "(%d)", __func__, err);
 571                 }
 572         }
 573         return;
 574 }
 575
 576 static void option_outdat_callback(struct urb *urb)
 577 {
 578         struct usb_serial_port *port;
 579         struct option_port_private *portdata;
 580         int i;
 581
 582         dbg("%s", __func__);
 583
 584         port =  urb->context;
 585
 586         usb_serial_port_softint(port);
 587
 588         portdata = usb_get_serial_port_data(port);
 589         for (i = 0; i < N_OUT_URB; ++i) {
 590                 if (portdata->out_urbs[i] == urb) {
 591                         smp_mb__before_clear_bit();
 592                         clear_bit(i, &portdata->out_busy);
 593                         break;
 594                 }
 595         }
 596 }
 597
 598 static void option_instat_callback(struct urb *urb)
 599 {
 600         int err;
 601         int status = urb->status;
 602         struct usb_serial_port *port =  urb->context;
 603         struct option_port_private *portdata = usb_get_serial_port_data(port);
 604         struct usb_serial *serial = port->serial;
 605
 606         dbg("%s", __func__);
 607         dbg("%s: urb %p port %p has data %p", __func__,urb,port,portdata);
 608
 609         if (status == 0) {
 610                 struct usb_ctrlrequest *req_pkt =
 611                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 612
 613                 if (!req_pkt) {
 614                         dbg("%s: NULL req_pkt\n", __func__);
 615                         return;
 616                 }
 617                 if ((req_pkt->bRequestType == 0xA1) &&
 618                                 (req_pkt->bRequest == 0x20)) {
 619                         int old_dcd_state;
 620                         unsigned char signals = *((unsigned char *)
 621                                         urb->transfer_buffer +
 622                                         sizeof(struct usb_ctrlrequest));
 623
 624                         dbg("%s: signal x%x", __func__, signals);
 625
 626                         old_dcd_state = portdata->dcd_state;
 627                         portdata->cts_state = 1;
 628                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 629                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 630                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 631
 632                         if (port->tty && !C_CLOCAL(port->tty) &&
 633                                         old_dcd_state && !portdata->dcd_state)
 634                                 tty_hangup(port->tty);
 635                 } else {
 636                         dbg("%s: type %x req %x", __func__,
 637                                 req_pkt->bRequestType,req_pkt->bRequest);
 638                 }
 639         } else
 640                 dbg("%s: error %d", __func__, status);
 641
 642         /* Resubmit urb so we continue receiving IRQ data */
 643         if (status != -ESHUTDOWN) {
 644                 urb->dev = serial->dev;
 645                 err = usb_submit_urb(urb, GFP_ATOMIC);
 646                 if (err)
 647                         dbg("%s: resubmit intr urb failed. (%d)",
 648                                 __func__, err);
 649         }
 650 }
 651
 652 static int option_write_room(struct usb_serial_port *port)
 653 {
 654         struct option_port_private *portdata;
 655         int i;
 656         int data_len = 0;
 657         struct urb *this_urb;
 658
 659         portdata = usb_get_serial_port_data(port);
 660
 661
 662         for (i=0; i < N_OUT_URB; i++) {
 663                 this_urb = portdata->out_urbs[i];
 664                 if (this_urb && !test_bit(i, &portdata->out_busy))
 665                         data_len += OUT_BUFLEN;
 666         }
 667
 668         dbg("%s: %d", __func__, data_len);
 669         return data_len;
 670 }
 671
 672 static int option_chars_in_buffer(struct usb_serial_port *port)
 673 {
 674         struct option_port_private *portdata;
 675         int i;
 676         int data_len = 0;
 677         struct urb *this_urb;
 678
 679         portdata = usb_get_serial_port_data(port);
 680
 681         for (i=0; i < N_OUT_URB; i++) {
 682                 this_urb = portdata->out_urbs[i];
 683                 /* FIXME: This locking is insufficient as this_urb may
 684                    go unused during the test */
 685                 if (this_urb && test_bit(i, &portdata->out_busy))
 686                         data_len += this_urb->transfer_buffer_length;
 687         }
 688         dbg("%s: %d", __func__, data_len);
 689         return data_len;
 690 }
 691
 692 static int option_open(struct usb_serial_port *port, struct file *filp)
 693 {
 694         struct option_port_private *portdata;
 695         struct usb_serial *serial = port->serial;
 696         int i, err;
 697         struct urb *urb;
 698
 699         portdata = usb_get_serial_port_data(port);
 700
 701         dbg("%s", __func__);
 702
 703         /* Set some sane defaults */
 704         portdata->rts_state = 1;
 705         portdata->dtr_state = 1;
 706
 707         /* Reset low level data toggle and start reading from endpoints */
 708         for (i = 0; i < N_IN_URB; i++) {
 709                 urb = portdata->in_urbs[i];
 710                 if (! urb)
 711                         continue;
 712                 if (urb->dev != serial->dev) {
 713                         dbg("%s: dev %p != %p", __func__,
 714                                 urb->dev, serial->dev);
 715                         continue;
 716                 }
 717
 718                 /*
 719                  * make sure endpoint data toggle is synchronized with the
 720                  * device
 721                  */
 722                 usb_clear_halt(urb->dev, urb->pipe);
 723
 724                 err = usb_submit_urb(urb, GFP_KERNEL);
 725                 if (err) {
 726                         dbg("%s: submit urb %d failed (%d) %d",
 727                                 __func__, i, err,
 728                                 urb->transfer_buffer_length);
 729                 }
 730         }
 731
 732         /* Reset low level data toggle on out endpoints */
 733         for (i = 0; i < N_OUT_URB; i++) {
 734                 urb = portdata->out_urbs[i];
 735                 if (! urb)
 736                         continue;
 737                 urb->dev = serial->dev;
 738                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 739                                 usb_pipeout(urb->pipe), 0); */
 740         }
 741
 742         port->tty->low_latency = 1;
 743
 744         option_send_setup(port);
 745
 746         return (0);
 747 }
 748
 749 static void option_close(struct usb_serial_port *port, struct file *filp)
 750 {
 751         int i;
 752         struct usb_serial *serial = port->serial;
 753         struct option_port_private *portdata;
 754
 755         dbg("%s", __func__);
 756         portdata = usb_get_serial_port_data(port);
 757
 758         portdata->rts_state = 0;
 759         portdata->dtr_state = 0;
 760
 761         if (serial->dev) {
 762                 mutex_lock(&serial->disc_mutex);
 763                 if (!serial->disconnected)
 764                         option_send_setup(port);
 765                 mutex_unlock(&serial->disc_mutex);
 766
 767                 /* Stop reading/writing urbs */
 768                 for (i = 0; i < N_IN_URB; i++)
 769                         usb_kill_urb(portdata->in_urbs[i]);
 770                 for (i = 0; i < N_OUT_URB; i++)
 771                         usb_kill_urb(portdata->out_urbs[i]);
 772         }
 773         port->tty = NULL;
 774 }
 775
 776 /* Helper functions used by option_setup_urbs */
 777 static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
 778                 int dir, void *ctx, char *buf, int len,
 779                 void (*callback)(struct urb *))
 780 {
 781         struct urb *urb;
 782
 783         if (endpoint == -1)
 784                 return NULL;            /* endpoint not needed */
 785
 786         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 787         if (urb == NULL) {
 788                 dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
 789                 return NULL;
 790         }
 791
 792                 /* Fill URB using supplied data. */
 793         usb_fill_bulk_urb(urb, serial->dev,
 794                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 795                       buf, len, callback, ctx);
 796
 797         return urb;
 798 }
 799
 800 /* Setup urbs */
 801 static void option_setup_urbs(struct usb_serial *serial)
 802 {
 803         int i,j;
 804         struct usb_serial_port *port;
 805         struct option_port_private *portdata;
 806
 807         dbg("%s", __func__);
 808
 809         for (i = 0; i < serial->num_ports; i++) {
 810                 port = serial->port[i];
 811                 portdata = usb_get_serial_port_data(port);
 812
 813         /* Do indat endpoints first */
 814                 for (j = 0; j < N_IN_URB; ++j) {
 815                         portdata->in_urbs[j] = option_setup_urb (serial,
 816                         port->bulk_in_endpointAddress, USB_DIR_IN, port,
 817                         portdata->in_buffer[j], IN_BUFLEN, option_indat_callback);
 818                 }
 819
 820                 /* outdat endpoints */
 821                 for (j = 0; j < N_OUT_URB; ++j) {
 822                         portdata->out_urbs[j] = option_setup_urb (serial,
 823                         port->bulk_out_endpointAddress, USB_DIR_OUT, port,
 824                         portdata->out_buffer[j], OUT_BUFLEN, option_outdat_callback);
 825                 }
 826         }
 827 }
 828
 829
 830 /** send RTS/DTR state to the port.
 831  *
 832  * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
 833  * CDC.
 834 */
 835 static int option_send_setup(struct usb_serial_port *port)
 836 {
 837         struct usb_serial *serial = port->serial;
 838         struct option_port_private *portdata;
 839         int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
 840         dbg("%s", __func__);
 841
 842         portdata = usb_get_serial_port_data(port);
 843
 844         if (port->tty) {
 845                 int val = 0;
 846                 if (portdata->dtr_state)
 847                         val |= 0x01;
 848                 if (portdata->rts_state)
 849                         val |= 0x02;
 850
 851                 return usb_control_msg(serial->dev,
 852                                 usb_rcvctrlpipe(serial->dev, 0),
 853                                 0x22,0x21,val,ifNum,NULL,0,USB_CTRL_SET_TIMEOUT);
 854         }
 855
 856         return 0;
 857 }
 858
 859 static int option_startup(struct usb_serial *serial)
 860 {
 861         int i, j, err;
 862         struct usb_serial_port *port;
 863         struct option_port_private *portdata;
 864         u8 *buffer;
 865
 866         dbg("%s", __func__);
 867
 868         /* Now setup per port private data */
 869         for (i = 0; i < serial->num_ports; i++) {
 870                 port = serial->port[i];
 871                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
 872                 if (!portdata) {
 873                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
 874                                         __func__, i);
 875                         return (1);
 876                 }
 877
 878                 for (j = 0; j < N_IN_URB; j++) {
 879                         buffer = (u8 *)__get_free_page(GFP_KERNEL);
 880                         if (!buffer)
 881                                 goto bail_out_error;
 882                         portdata->in_buffer[j] = buffer;
 883                 }
 884
 885                 for (j = 0; j < N_OUT_URB; j++) {
 886                         buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
 887                         if (!buffer)
 888                                 goto bail_out_error2;
 889                         portdata->out_buffer[j] = buffer;
 890                 }
 891
 892                 usb_set_serial_port_data(port, portdata);
 893
 894                 if (! port->interrupt_in_urb)
 895                         continue;
 896                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 897                 if (err)
 898                         dbg("%s: submit irq_in urb failed %d",
 899                                 __func__, err);
 900         }
 901
 902         option_setup_urbs(serial);
 903
 904         return (0);
 905
 906 bail_out_error2:
 907         for (j = 0; j < N_OUT_URB; j++)
 908                 kfree(portdata->out_buffer[j]);
 909 bail_out_error:
 910         for (j = 0; j < N_IN_URB; j++)
 911                 if (portdata->in_buffer[j])
 912                         free_page((unsigned long)portdata->in_buffer[j]);
 913         kfree(portdata);
 914         return 1;
 915 }
 916
 917 static void option_shutdown(struct usb_serial *serial)
 918 {
 919         int i, j;
 920         struct usb_serial_port *port;
 921         struct option_port_private *portdata;
 922
 923         dbg("%s", __func__);
 924
 925         /* Stop reading/writing urbs */
 926         for (i = 0; i < serial->num_ports; ++i) {
 927                 port = serial->port[i];
 928                 portdata = usb_get_serial_port_data(port);
 929                 for (j = 0; j < N_IN_URB; j++)
 930                         usb_kill_urb(portdata->in_urbs[j]);
 931                 for (j = 0; j < N_OUT_URB; j++)
 932                         usb_kill_urb(portdata->out_urbs[j]);
 933         }
 934
 935         /* Now free them */
 936         for (i = 0; i < serial->num_ports; ++i) {
 937                 port = serial->port[i];
 938                 portdata = usb_get_serial_port_data(port);
 939
 940                 for (j = 0; j < N_IN_URB; j++) {
 941                         if (portdata->in_urbs[j]) {
 942                                 usb_free_urb(portdata->in_urbs[j]);
 943                                 free_page((unsigned long)portdata->in_buffer[j]);
 944                                 portdata->in_urbs[j] = NULL;
 945                         }
 946                 }
 947                 for (j = 0; j < N_OUT_URB; j++) {
 948                         if (portdata->out_urbs[j]) {
 949                                 usb_free_urb(portdata->out_urbs[j]);
 950                                 kfree(portdata->out_buffer[j]);
 951                                 portdata->out_urbs[j] = NULL;
 952                         }
 953                 }
 954         }
 955
 956         /* Now free per port private data */
 957         for (i = 0; i < serial->num_ports; i++) {
 958                 port = serial->port[i];
 959                 kfree(usb_get_serial_port_data(port));
 960         }
 961 }
 962
 963 MODULE_AUTHOR(DRIVER_AUTHOR);
 964 MODULE_DESCRIPTION(DRIVER_DESC);
 965 MODULE_VERSION(DRIVER_VERSION);
 966 MODULE_LICENSE("GPL");
 967
 968 #ifdef CONFIG_USB_DEBUG
 969 module_param(debug, bool, S_IRUGO | S_IWUSR);
 970 MODULE_PARM_DESC(debug, "Debug messages");
 971 #endif
 972