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 "v0.7.1"
  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 #define DELL_VENDOR_ID                          0x413C
 170
 171 #define KYOCERA_VENDOR_ID                       0x0c88
 172 #define KYOCERA_PRODUCT_KPC680                  0x180a
 173
 174 #define ANYDATA_VENDOR_ID                       0x16d5
 175 #define ANYDATA_PRODUCT_ADU_E100A               0x6501
 176 #define ANYDATA_PRODUCT_ADU_500A                0x6502
 177
 178 #define AXESSTEL_VENDOR_ID                      0x1726
 179 #define AXESSTEL_PRODUCT_MV110H                 0x1000
 180
 181 #define BANDRICH_VENDOR_ID                      0x1A8D
 182 #define BANDRICH_PRODUCT_C100_1                 0x1002
 183 #define BANDRICH_PRODUCT_C100_2                 0x1003
 184
 185 #define AMOI_VENDOR_ID                  0x1614
 186 #define AMOI_PRODUCT_9508                       0x0800
 187
 188 #define QUALCOMM_VENDOR_ID                      0x05C6
 189
 190 #define MAXON_VENDOR_ID                         0x16d8
 191
 192 static struct usb_device_id option_ids[] = {
 193         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
 194         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
 195         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
 196         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD) },
 197         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD_LIGHT) },
 198         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS) },
 199         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_LIGHT) },
 200         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD) },
 201         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT) },
 202         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
 203         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA_BUS) },
 204         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER) },
 205         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER_BUS) },
 206         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX_READY) },
 207         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX) },
 208         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_LIGHT) },
 209         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_GT) },
 210         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_EX) },
 211         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_LIGHT) },
 212         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_GT) },
 213         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_EX) },
 214         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_MODEM) },
 215         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_NETWORK) },
 216         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_MODEM) },
 217         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_NETWORK) },
 218         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM) },
 219         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK) },
 220         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_LITE) },
 221         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) },
 222         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) },
 223         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_LITE) },
 224         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_GT) },
 225         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_EX) },
 226         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) },
 227         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_NETWORK) },
 228         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600) },
 229         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220, 0xff, 0xff, 0xff) },
 230         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS, 0xff, 0xff, 0xff) },
 231         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1401) },
 232         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1403) },
 233         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1405) },
 234         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1406) },
 235         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1408) },
 236         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1409) },
 237         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1410) },
 238         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1411) },
 239         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1412) },
 240         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1413) },
 241         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1414) },
 242         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1415) },
 243         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1416) },
 244         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1417) },
 245         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1418) },
 246         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1419) },
 247         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_9508) },
 248         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */
 249         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */
 250         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) }, /* Novatel Merlin EX720/V740/X720 */
 251         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V720) }, /* Novatel Merlin V720/S720/PC720 */
 252         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U730) }, /* Novatel U730/U740 (VF version) */
 253         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U740) }, /* Novatel U740 */
 254         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U870) }, /* Novatel U870 */
 255         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_XU870) }, /* Novatel Merlin XU870 HSDPA/3G */
 256         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_X950D) }, /* Novatel X950D */
 257         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EV620) }, /* Novatel EV620/ES620 CDMA/EV-DO */
 258         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES720) }, /* Novatel ES620/ES720/U720/USB720 */
 259         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E725) }, /* Novatel E725/E726 */
 260         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES620) }, /* Novatel Merlin ES620 SM Bus */
 261         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU730) }, /* Novatel EU730 and Vodafone EU740 */
 262         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU740) }, /* Novatel non-Vodafone EU740 */
 263         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) }, /* Novatel EU850D/EU860D/EU870D */
 264         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) }, /* Novatel MC930D/MC950D */
 265         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) }, /* Novatel MC727/U727/USB727 */
 266         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U727) }, /* Novatel U727 */
 267         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_1) }, /* Novatel EVDO product */
 268         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_1) }, /* Novatel HSPA product */
 269         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_1) }, /* Novatel Embedded product */
 270         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_1) }, /* Novatel Global product */
 271         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_2) }, /* Novatel EVDO product */
 272         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_2) }, /* Novatel HSPA product */
 273         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_2) }, /* Novatel Embedded product */
 274         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_2) }, /* Novatel Global product */
 275
 276         { USB_DEVICE(DELL_VENDOR_ID, 0x8114) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */
 277         { USB_DEVICE(DELL_VENDOR_ID, 0x8115) }, /* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 278         { USB_DEVICE(DELL_VENDOR_ID, 0x8116) }, /* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 279         { USB_DEVICE(DELL_VENDOR_ID, 0x8117) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO ExpressCard == Novatel Merlin XV620 CDMA/EV-DO */
 280         { USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard == Novatel Merlin XU870 HSDPA/3G */
 281         { USB_DEVICE(DELL_VENDOR_ID, 0x8128) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite E720 CDMA/EV-DO */
 282         { USB_DEVICE(DELL_VENDOR_ID, 0x8129) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite ET620 CDMA/EV-DO */
 283         { USB_DEVICE(DELL_VENDOR_ID, 0x8133) }, /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
 284         { USB_DEVICE(DELL_VENDOR_ID, 0x8136) }, /* Dell Wireless HSDPA 5520 == Novatel Expedite EU860D */
 285         { USB_DEVICE(DELL_VENDOR_ID, 0x8137) }, /* Dell Wireless HSDPA 5520 */
 286         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },
 287         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
 288         { USB_DEVICE(AXESSTEL_VENDOR_ID, AXESSTEL_PRODUCT_MV110H) },
 289         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
 290         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
 291         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
 292         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
 293         { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */
 294         { } /* Terminating entry */
 295 };
 296 MODULE_DEVICE_TABLE(usb, option_ids);
 297
 298 static struct usb_driver option_driver = {
 299         .name       = "option",
 300         .probe      = usb_serial_probe,
 301         .disconnect = usb_serial_disconnect,
 302         .id_table   = option_ids,
 303         .no_dynamic_id =        1,
 304 };
 305
 306 /* The card has three separate interfaces, which the serial driver
 307  * recognizes separately, thus num_port=1.
 308  */
 309
 310 static struct usb_serial_driver option_1port_device = {
 311         .driver = {
 312                 .owner =        THIS_MODULE,
 313                 .name =         "option1",
 314         },
 315         .description       = "GSM modem (1-port)",
 316         .usb_driver        = &option_driver,
 317         .id_table          = option_ids,
 318         .num_interrupt_in  = NUM_DONT_CARE,
 319         .num_bulk_in       = NUM_DONT_CARE,
 320         .num_bulk_out      = NUM_DONT_CARE,
 321         .num_ports         = 1,
 322         .open              = option_open,
 323         .close             = option_close,
 324         .write             = option_write,
 325         .write_room        = option_write_room,
 326         .chars_in_buffer   = option_chars_in_buffer,
 327         .throttle          = option_rx_throttle,
 328         .unthrottle        = option_rx_unthrottle,
 329         .ioctl             = option_ioctl,
 330         .set_termios       = option_set_termios,
 331         .break_ctl         = option_break_ctl,
 332         .tiocmget          = option_tiocmget,
 333         .tiocmset          = option_tiocmset,
 334         .attach            = option_startup,
 335         .shutdown          = option_shutdown,
 336         .read_int_callback = option_instat_callback,
 337 };
 338
 339 #ifdef CONFIG_USB_DEBUG
 340 static int debug;
 341 #else
 342 #define debug 0
 343 #endif
 344
 345 /* per port private data */
 346
 347 #define N_IN_URB 4
 348 #define N_OUT_URB 1
 349 #define IN_BUFLEN 4096
 350 #define OUT_BUFLEN 128
 351
 352 struct option_port_private {
 353         /* Input endpoints and buffer for this port */
 354         struct urb *in_urbs[N_IN_URB];
 355         u8 *in_buffer[N_IN_URB];
 356         /* Output endpoints and buffer for this port */
 357         struct urb *out_urbs[N_OUT_URB];
 358         u8 *out_buffer[N_OUT_URB];
 359         unsigned long out_busy;         /* Bit vector of URBs in use */
 360
 361         /* Settings for the port */
 362         int rts_state;  /* Handshaking pins (outputs) */
 363         int dtr_state;
 364         int cts_state;  /* Handshaking pins (inputs) */
 365         int dsr_state;
 366         int dcd_state;
 367         int ri_state;
 368
 369         unsigned long tx_start_time[N_OUT_URB];
 370 };
 371
 372 /* Functions used by new usb-serial code. */
 373 static int __init option_init(void)
 374 {
 375         int retval;
 376         retval = usb_serial_register(&option_1port_device);
 377         if (retval)
 378                 goto failed_1port_device_register;
 379         retval = usb_register(&option_driver);
 380         if (retval)
 381                 goto failed_driver_register;
 382
 383         info(DRIVER_DESC ": " DRIVER_VERSION);
 384
 385         return 0;
 386
 387 failed_driver_register:
 388         usb_serial_deregister (&option_1port_device);
 389 failed_1port_device_register:
 390         return retval;
 391 }
 392
 393 static void __exit option_exit(void)
 394 {
 395         usb_deregister (&option_driver);
 396         usb_serial_deregister (&option_1port_device);
 397 }
 398
 399 module_init(option_init);
 400 module_exit(option_exit);
 401
 402 static void option_rx_throttle(struct usb_serial_port *port)
 403 {
 404         dbg("%s", __FUNCTION__);
 405 }
 406
 407 static void option_rx_unthrottle(struct usb_serial_port *port)
 408 {
 409         dbg("%s", __FUNCTION__);
 410 }
 411
 412 static void option_break_ctl(struct usb_serial_port *port, int break_state)
 413 {
 414         /* Unfortunately, I don't know how to send a break */
 415         dbg("%s", __FUNCTION__);
 416 }
 417
 418 static void option_set_termios(struct usb_serial_port *port,
 419                         struct ktermios *old_termios)
 420 {
 421         dbg("%s", __FUNCTION__);
 422         /* Doesn't support option setting */
 423         tty_termios_copy_hw(port->tty->termios, old_termios);
 424         option_send_setup(port);
 425 }
 426
 427 static int option_tiocmget(struct usb_serial_port *port, struct file *file)
 428 {
 429         unsigned int value;
 430         struct option_port_private *portdata;
 431
 432         portdata = usb_get_serial_port_data(port);
 433
 434         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
 435                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
 436                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
 437                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
 438                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
 439                 ((portdata->ri_state) ? TIOCM_RNG : 0);
 440
 441         return value;
 442 }
 443
 444 static int option_tiocmset(struct usb_serial_port *port, struct file *file,
 445                         unsigned int set, unsigned int clear)
 446 {
 447         struct option_port_private *portdata;
 448
 449         portdata = usb_get_serial_port_data(port);
 450
 451         if (set & TIOCM_RTS)
 452                 portdata->rts_state = 1;
 453         if (set & TIOCM_DTR)
 454                 portdata->dtr_state = 1;
 455
 456         if (clear & TIOCM_RTS)
 457                 portdata->rts_state = 0;
 458         if (clear & TIOCM_DTR)
 459                 portdata->dtr_state = 0;
 460         return option_send_setup(port);
 461 }
 462
 463 static int option_ioctl(struct usb_serial_port *port, struct file *file,
 464                         unsigned int cmd, unsigned long arg)
 465 {
 466         return -ENOIOCTLCMD;
 467 }
 468
 469 /* Write */
 470 static int option_write(struct usb_serial_port *port,
 471                         const unsigned char *buf, int count)
 472 {
 473         struct option_port_private *portdata;
 474         int i;
 475         int left, todo;
 476         struct urb *this_urb = NULL; /* spurious */
 477         int err;
 478
 479         portdata = usb_get_serial_port_data(port);
 480
 481         dbg("%s: write (%d chars)", __FUNCTION__, count);
 482
 483         i = 0;
 484         left = count;
 485         for (i=0; left > 0 && i < N_OUT_URB; i++) {
 486                 todo = left;
 487                 if (todo > OUT_BUFLEN)
 488                         todo = OUT_BUFLEN;
 489
 490                 this_urb = portdata->out_urbs[i];
 491                 if (test_and_set_bit(i, &portdata->out_busy)) {
 492                         if (time_before(jiffies,
 493                                         portdata->tx_start_time[i] + 10 * HZ))
 494                                 continue;
 495                         usb_unlink_urb(this_urb);
 496                         continue;
 497                 }
 498                 if (this_urb->status != 0)
 499                         dbg("usb_write %p failed (err=%d)",
 500                                 this_urb, this_urb->status);
 501
 502                 dbg("%s: endpoint %d buf %d", __FUNCTION__,
 503                         usb_pipeendpoint(this_urb->pipe), i);
 504
 505                 /* send the data */
 506                 memcpy (this_urb->transfer_buffer, buf, todo);
 507                 this_urb->transfer_buffer_length = todo;
 508
 509                 this_urb->dev = port->serial->dev;
 510                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 511                 if (err) {
 512                         dbg("usb_submit_urb %p (write bulk) failed "
 513                                 "(%d, has %d)", this_urb,
 514                                 err, this_urb->status);
 515                         clear_bit(i, &portdata->out_busy);
 516                         continue;
 517                 }
 518                 portdata->tx_start_time[i] = jiffies;
 519                 buf += todo;
 520                 left -= todo;
 521         }
 522
 523         count -= left;
 524         dbg("%s: wrote (did %d)", __FUNCTION__, count);
 525         return count;
 526 }
 527
 528 static void option_indat_callback(struct urb *urb)
 529 {
 530         int err;
 531         int endpoint;
 532         struct usb_serial_port *port;
 533         struct tty_struct *tty;
 534         unsigned char *data = urb->transfer_buffer;
 535         int status = urb->status;
 536
 537         dbg("%s: %p", __FUNCTION__, urb);
 538
 539         endpoint = usb_pipeendpoint(urb->pipe);
 540         port = (struct usb_serial_port *) urb->context;
 541
 542         if (status) {
 543                 dbg("%s: nonzero status: %d on endpoint %02x.",
 544                     __FUNCTION__, status, endpoint);
 545         } else {
 546                 tty = port->tty;
 547                 if (urb->actual_length) {
 548                         tty_buffer_request_room(tty, urb->actual_length);
 549                         tty_insert_flip_string(tty, data, urb->actual_length);
 550                         tty_flip_buffer_push(tty);
 551                 } else {
 552                         dbg("%s: empty read urb received", __FUNCTION__);
 553                 }
 554
 555                 /* Resubmit urb so we continue receiving */
 556                 if (port->open_count && status != -ESHUTDOWN) {
 557                         err = usb_submit_urb(urb, GFP_ATOMIC);
 558                         if (err)
 559                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 560                                         "(%d)", __FUNCTION__, err);
 561                 }
 562         }
 563         return;
 564 }
 565
 566 static void option_outdat_callback(struct urb *urb)
 567 {
 568         struct usb_serial_port *port;
 569         struct option_port_private *portdata;
 570         int i;
 571
 572         dbg("%s", __FUNCTION__);
 573
 574         port = (struct usb_serial_port *) urb->context;
 575
 576         usb_serial_port_softint(port);
 577
 578         portdata = usb_get_serial_port_data(port);
 579         for (i = 0; i < N_OUT_URB; ++i) {
 580                 if (portdata->out_urbs[i] == urb) {
 581                         smp_mb__before_clear_bit();
 582                         clear_bit(i, &portdata->out_busy);
 583                         break;
 584                 }
 585         }
 586 }
 587
 588 static void option_instat_callback(struct urb *urb)
 589 {
 590         int err;
 591         int status = urb->status;
 592         struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
 593         struct option_port_private *portdata = usb_get_serial_port_data(port);
 594         struct usb_serial *serial = port->serial;
 595
 596         dbg("%s", __FUNCTION__);
 597         dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata);
 598
 599         if (status == 0) {
 600                 struct usb_ctrlrequest *req_pkt =
 601                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 602
 603                 if (!req_pkt) {
 604                         dbg("%s: NULL req_pkt\n", __FUNCTION__);
 605                         return;
 606                 }
 607                 if ((req_pkt->bRequestType == 0xA1) &&
 608                                 (req_pkt->bRequest == 0x20)) {
 609                         int old_dcd_state;
 610                         unsigned char signals = *((unsigned char *)
 611                                         urb->transfer_buffer +
 612                                         sizeof(struct usb_ctrlrequest));
 613
 614                         dbg("%s: signal x%x", __FUNCTION__, signals);
 615
 616                         old_dcd_state = portdata->dcd_state;
 617                         portdata->cts_state = 1;
 618                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 619                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 620                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 621
 622                         if (port->tty && !C_CLOCAL(port->tty) &&
 623                                         old_dcd_state && !portdata->dcd_state)
 624                                 tty_hangup(port->tty);
 625                 } else {
 626                         dbg("%s: type %x req %x", __FUNCTION__,
 627                                 req_pkt->bRequestType,req_pkt->bRequest);
 628                 }
 629         } else
 630                 dbg("%s: error %d", __FUNCTION__, status);
 631
 632         /* Resubmit urb so we continue receiving IRQ data */
 633         if (status != -ESHUTDOWN) {
 634                 urb->dev = serial->dev;
 635                 err = usb_submit_urb(urb, GFP_ATOMIC);
 636                 if (err)
 637                         dbg("%s: resubmit intr urb failed. (%d)",
 638                                 __FUNCTION__, err);
 639         }
 640 }
 641
 642 static int option_write_room(struct usb_serial_port *port)
 643 {
 644         struct option_port_private *portdata;
 645         int i;
 646         int data_len = 0;
 647         struct urb *this_urb;
 648
 649         portdata = usb_get_serial_port_data(port);
 650
 651         for (i=0; i < N_OUT_URB; i++) {
 652                 this_urb = portdata->out_urbs[i];
 653                 if (this_urb && !test_bit(i, &portdata->out_busy))
 654                         data_len += OUT_BUFLEN;
 655         }
 656
 657         dbg("%s: %d", __FUNCTION__, data_len);
 658         return data_len;
 659 }
 660
 661 static int option_chars_in_buffer(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         for (i=0; i < N_OUT_URB; i++) {
 671                 this_urb = portdata->out_urbs[i];
 672                 if (this_urb && test_bit(i, &portdata->out_busy))
 673                         data_len += this_urb->transfer_buffer_length;
 674         }
 675         dbg("%s: %d", __FUNCTION__, data_len);
 676         return data_len;
 677 }
 678
 679 static int option_open(struct usb_serial_port *port, struct file *filp)
 680 {
 681         struct option_port_private *portdata;
 682         struct usb_serial *serial = port->serial;
 683         int i, err;
 684         struct urb *urb;
 685
 686         portdata = usb_get_serial_port_data(port);
 687
 688         dbg("%s", __FUNCTION__);
 689
 690         /* Set some sane defaults */
 691         portdata->rts_state = 1;
 692         portdata->dtr_state = 1;
 693
 694         /* Reset low level data toggle and start reading from endpoints */
 695         for (i = 0; i < N_IN_URB; i++) {
 696                 urb = portdata->in_urbs[i];
 697                 if (! urb)
 698                         continue;
 699                 if (urb->dev != serial->dev) {
 700                         dbg("%s: dev %p != %p", __FUNCTION__,
 701                                 urb->dev, serial->dev);
 702                         continue;
 703                 }
 704
 705                 /*
 706                  * make sure endpoint data toggle is synchronized with the
 707                  * device
 708                  */
 709                 usb_clear_halt(urb->dev, urb->pipe);
 710
 711                 err = usb_submit_urb(urb, GFP_KERNEL);
 712                 if (err) {
 713                         dbg("%s: submit urb %d failed (%d) %d",
 714                                 __FUNCTION__, i, err,
 715                                 urb->transfer_buffer_length);
 716                 }
 717         }
 718
 719         /* Reset low level data toggle on out endpoints */
 720         for (i = 0; i < N_OUT_URB; i++) {
 721                 urb = portdata->out_urbs[i];
 722                 if (! urb)
 723                         continue;
 724                 urb->dev = serial->dev;
 725                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 726                                 usb_pipeout(urb->pipe), 0); */
 727         }
 728
 729         port->tty->low_latency = 1;
 730
 731         option_send_setup(port);
 732
 733         return (0);
 734 }
 735
 736 static void option_close(struct usb_serial_port *port, struct file *filp)
 737 {
 738         int i;
 739         struct usb_serial *serial = port->serial;
 740         struct option_port_private *portdata;
 741
 742         dbg("%s", __FUNCTION__);
 743         portdata = usb_get_serial_port_data(port);
 744
 745         portdata->rts_state = 0;
 746         portdata->dtr_state = 0;
 747
 748         if (serial->dev) {
 749                 mutex_lock(&serial->disc_mutex);
 750                 if (!serial->disconnected)
 751                         option_send_setup(port);
 752                 mutex_unlock(&serial->disc_mutex);
 753
 754                 /* Stop reading/writing urbs */
 755                 for (i = 0; i < N_IN_URB; i++)
 756                         usb_kill_urb(portdata->in_urbs[i]);
 757                 for (i = 0; i < N_OUT_URB; i++)
 758                         usb_kill_urb(portdata->out_urbs[i]);
 759         }
 760         port->tty = NULL;
 761 }
 762
 763 /* Helper functions used by option_setup_urbs */
 764 static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
 765                 int dir, void *ctx, char *buf, int len,
 766                 void (*callback)(struct urb *))
 767 {
 768         struct urb *urb;
 769
 770         if (endpoint == -1)
 771                 return NULL;            /* endpoint not needed */
 772
 773         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 774         if (urb == NULL) {
 775                 dbg("%s: alloc for endpoint %d failed.", __FUNCTION__, endpoint);
 776                 return NULL;
 777         }
 778
 779                 /* Fill URB using supplied data. */
 780         usb_fill_bulk_urb(urb, serial->dev,
 781                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 782                       buf, len, callback, ctx);
 783
 784         return urb;
 785 }
 786
 787 /* Setup urbs */
 788 static void option_setup_urbs(struct usb_serial *serial)
 789 {
 790         int i,j;
 791         struct usb_serial_port *port;
 792         struct option_port_private *portdata;
 793
 794         dbg("%s", __FUNCTION__);
 795
 796         for (i = 0; i < serial->num_ports; i++) {
 797                 port = serial->port[i];
 798                 portdata = usb_get_serial_port_data(port);
 799
 800         /* Do indat endpoints first */
 801                 for (j = 0; j < N_IN_URB; ++j) {
 802                         portdata->in_urbs[j] = option_setup_urb (serial,
 803                         port->bulk_in_endpointAddress, USB_DIR_IN, port,
 804                         portdata->in_buffer[j], IN_BUFLEN, option_indat_callback);
 805                 }
 806
 807                 /* outdat endpoints */
 808                 for (j = 0; j < N_OUT_URB; ++j) {
 809                         portdata->out_urbs[j] = option_setup_urb (serial,
 810                         port->bulk_out_endpointAddress, USB_DIR_OUT, port,
 811                         portdata->out_buffer[j], OUT_BUFLEN, option_outdat_callback);
 812                 }
 813         }
 814 }
 815
 816 static int option_send_setup(struct usb_serial_port *port)
 817 {
 818         struct usb_serial *serial = port->serial;
 819         struct option_port_private *portdata;
 820
 821         dbg("%s", __FUNCTION__);
 822
 823         if (port->number != 0)
 824                 return 0;
 825
 826         portdata = usb_get_serial_port_data(port);
 827
 828         if (port->tty) {
 829                 int val = 0;
 830                 if (portdata->dtr_state)
 831                         val |= 0x01;
 832                 if (portdata->rts_state)
 833                         val |= 0x02;
 834
 835                 return usb_control_msg(serial->dev,
 836                                 usb_rcvctrlpipe(serial->dev, 0),
 837                                 0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT);
 838         }
 839
 840         return 0;
 841 }
 842
 843 static int option_startup(struct usb_serial *serial)
 844 {
 845         int i, j, err;
 846         struct usb_serial_port *port;
 847         struct option_port_private *portdata;
 848         u8 *buffer;
 849
 850         dbg("%s", __FUNCTION__);
 851
 852         /* Now setup per port private data */
 853         for (i = 0; i < serial->num_ports; i++) {
 854                 port = serial->port[i];
 855                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
 856                 if (!portdata) {
 857                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
 858                                         __FUNCTION__, i);
 859                         return (1);
 860                 }
 861
 862                 for (j = 0; j < N_IN_URB; j++) {
 863                         buffer = (u8 *)__get_free_page(GFP_KERNEL);
 864                         if (!buffer)
 865                                 goto bail_out_error;
 866                         portdata->in_buffer[j] = buffer;
 867                 }
 868
 869                 for (j = 0; j < N_OUT_URB; j++) {
 870                         buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
 871                         if (!buffer)
 872                                 goto bail_out_error2;
 873                         portdata->out_buffer[j] = buffer;
 874                 }
 875
 876                 usb_set_serial_port_data(port, portdata);
 877
 878                 if (! port->interrupt_in_urb)
 879                         continue;
 880                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 881                 if (err)
 882                         dbg("%s: submit irq_in urb failed %d",
 883                                 __FUNCTION__, err);
 884         }
 885
 886         option_setup_urbs(serial);
 887
 888         return (0);
 889
 890 bail_out_error2:
 891         for (j = 0; j < N_OUT_URB; j++)
 892                 kfree(portdata->out_buffer[j]);
 893 bail_out_error:
 894         for (j = 0; j < N_IN_URB; j++)
 895                 if (portdata->in_buffer[j])
 896                         free_page((unsigned long)portdata->in_buffer[j]);
 897         kfree(portdata);
 898         return 1;
 899 }
 900
 901 static void option_shutdown(struct usb_serial *serial)
 902 {
 903         int i, j;
 904         struct usb_serial_port *port;
 905         struct option_port_private *portdata;
 906
 907         dbg("%s", __FUNCTION__);
 908
 909         /* Stop reading/writing urbs */
 910         for (i = 0; i < serial->num_ports; ++i) {
 911                 port = serial->port[i];
 912                 portdata = usb_get_serial_port_data(port);
 913                 for (j = 0; j < N_IN_URB; j++)
 914                         usb_kill_urb(portdata->in_urbs[j]);
 915                 for (j = 0; j < N_OUT_URB; j++)
 916                         usb_kill_urb(portdata->out_urbs[j]);
 917         }
 918
 919         /* Now free them */
 920         for (i = 0; i < serial->num_ports; ++i) {
 921                 port = serial->port[i];
 922                 portdata = usb_get_serial_port_data(port);
 923
 924                 for (j = 0; j < N_IN_URB; j++) {
 925                         if (portdata->in_urbs[j]) {
 926                                 usb_free_urb(portdata->in_urbs[j]);
 927                                 free_page((unsigned long)portdata->in_buffer[j]);
 928                                 portdata->in_urbs[j] = NULL;
 929                         }
 930                 }
 931                 for (j = 0; j < N_OUT_URB; j++) {
 932                         if (portdata->out_urbs[j]) {
 933                                 usb_free_urb(portdata->out_urbs[j]);
 934                                 kfree(portdata->out_buffer[j]);
 935                                 portdata->out_urbs[j] = NULL;
 936                         }
 937                 }
 938         }
 939
 940         /* Now free per port private data */
 941         for (i = 0; i < serial->num_ports; i++) {
 942                 port = serial->port[i];
 943                 kfree(usb_get_serial_port_data(port));
 944         }
 945 }
 946
 947 MODULE_AUTHOR(DRIVER_AUTHOR);
 948 MODULE_DESCRIPTION(DRIVER_DESC);
 949 MODULE_VERSION(DRIVER_VERSION);
 950 MODULE_LICENSE("GPL");
 951
 952 #ifdef CONFIG_USB_DEBUG
 953 module_param(debug, bool, S_IRUGO | S_IWUSR);
 954 MODULE_PARM_DESC(debug, "Debug messages");
 955 #endif
 956