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", __func__);
 412 }
 413
 414 static void option_rx_unthrottle(struct usb_serial_port *port)
 415 {
 416         dbg("%s", __func__);
 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", __func__);
 423 }
 424
 425 static void option_set_termios(struct usb_serial_port *port,
 426                         struct ktermios *old_termios)
 427 {
 428         dbg("%s", __func__);
 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)", __func__, 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", __func__,
 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)", __func__, 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", __func__, urb);
 546
 547         endpoint = usb_pipeendpoint(urb->pipe);
 548         port =  urb->context;
 549
 550         if (status) {
 551                 dbg("%s: nonzero status: %d on endpoint %02x.",
 552                     __func__, 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", __func__);
 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)", __func__, 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", __func__);
 581
 582         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 =  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", __func__);
 605         dbg("%s: urb %p port %p has data %p", __func__,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", __func__);
 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", __func__, 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", __func__,
 635                                 req_pkt->bRequestType,req_pkt->bRequest);
 636                 }
 637         } else
 638                 dbg("%s: error %d", __func__, 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                                 __func__, 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
 660         for (i=0; i < N_OUT_URB; i++) {
 661                 this_urb = portdata->out_urbs[i];
 662                 if (this_urb && !test_bit(i, &portdata->out_busy))
 663                         data_len += OUT_BUFLEN;
 664         }
 665
 666         dbg("%s: %d", __func__, data_len);
 667         return data_len;
 668 }
 669
 670 static int option_chars_in_buffer(struct usb_serial_port *port)
 671 {
 672         struct option_port_private *portdata;
 673         int i;
 674         int data_len = 0;
 675         struct urb *this_urb;
 676
 677         portdata = usb_get_serial_port_data(port);
 678
 679         for (i=0; i < N_OUT_URB; i++) {
 680                 this_urb = portdata->out_urbs[i];
 681                 /* FIXME: This locking is insufficient as this_urb may
 682                    go unused during the test */
 683                 if (this_urb && test_bit(i, &portdata->out_busy))
 684                         data_len += this_urb->transfer_buffer_length;
 685         }
 686         dbg("%s: %d", __func__, data_len);
 687         return data_len;
 688 }
 689
 690 static int option_open(struct usb_serial_port *port, struct file *filp)
 691 {
 692         struct option_port_private *portdata;
 693         struct usb_serial *serial = port->serial;
 694         int i, err;
 695         struct urb *urb;
 696
 697         portdata = usb_get_serial_port_data(port);
 698
 699         dbg("%s", __func__);
 700
 701         /* Set some sane defaults */
 702         portdata->rts_state = 1;
 703         portdata->dtr_state = 1;
 704
 705         /* Reset low level data toggle and start reading from endpoints */
 706         for (i = 0; i < N_IN_URB; i++) {
 707                 urb = portdata->in_urbs[i];
 708                 if (! urb)
 709                         continue;
 710                 if (urb->dev != serial->dev) {
 711                         dbg("%s: dev %p != %p", __func__,
 712                                 urb->dev, serial->dev);
 713                         continue;
 714                 }
 715
 716                 /*
 717                  * make sure endpoint data toggle is synchronized with the
 718                  * device
 719                  */
 720                 usb_clear_halt(urb->dev, urb->pipe);
 721
 722                 err = usb_submit_urb(urb, GFP_KERNEL);
 723                 if (err) {
 724                         dbg("%s: submit urb %d failed (%d) %d",
 725                                 __func__, i, err,
 726                                 urb->transfer_buffer_length);
 727                 }
 728         }
 729
 730         /* Reset low level data toggle on out endpoints */
 731         for (i = 0; i < N_OUT_URB; i++) {
 732                 urb = portdata->out_urbs[i];
 733                 if (! urb)
 734                         continue;
 735                 urb->dev = serial->dev;
 736                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 737                                 usb_pipeout(urb->pipe), 0); */
 738         }
 739
 740         port->tty->low_latency = 1;
 741
 742         option_send_setup(port);
 743
 744         return (0);
 745 }
 746
 747 static void option_close(struct usb_serial_port *port, struct file *filp)
 748 {
 749         int i;
 750         struct usb_serial *serial = port->serial;
 751         struct option_port_private *portdata;
 752
 753         dbg("%s", __func__);
 754         portdata = usb_get_serial_port_data(port);
 755
 756         portdata->rts_state = 0;
 757         portdata->dtr_state = 0;
 758
 759         if (serial->dev) {
 760                 mutex_lock(&serial->disc_mutex);
 761                 if (!serial->disconnected)
 762                         option_send_setup(port);
 763                 mutex_unlock(&serial->disc_mutex);
 764
 765                 /* Stop reading/writing urbs */
 766                 for (i = 0; i < N_IN_URB; i++)
 767                         usb_kill_urb(portdata->in_urbs[i]);
 768                 for (i = 0; i < N_OUT_URB; i++)
 769                         usb_kill_urb(portdata->out_urbs[i]);
 770         }
 771         port->tty = NULL;
 772 }
 773
 774 /* Helper functions used by option_setup_urbs */
 775 static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
 776                 int dir, void *ctx, char *buf, int len,
 777                 void (*callback)(struct urb *))
 778 {
 779         struct urb *urb;
 780
 781         if (endpoint == -1)
 782                 return NULL;            /* endpoint not needed */
 783
 784         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 785         if (urb == NULL) {
 786                 dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
 787                 return NULL;
 788         }
 789
 790                 /* Fill URB using supplied data. */
 791         usb_fill_bulk_urb(urb, serial->dev,
 792                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 793                       buf, len, callback, ctx);
 794
 795         return urb;
 796 }
 797
 798 /* Setup urbs */
 799 static void option_setup_urbs(struct usb_serial *serial)
 800 {
 801         int i,j;
 802         struct usb_serial_port *port;
 803         struct option_port_private *portdata;
 804
 805         dbg("%s", __func__);
 806
 807         for (i = 0; i < serial->num_ports; i++) {
 808                 port = serial->port[i];
 809                 portdata = usb_get_serial_port_data(port);
 810
 811         /* Do indat endpoints first */
 812                 for (j = 0; j < N_IN_URB; ++j) {
 813                         portdata->in_urbs[j] = option_setup_urb (serial,
 814                         port->bulk_in_endpointAddress, USB_DIR_IN, port,
 815                         portdata->in_buffer[j], IN_BUFLEN, option_indat_callback);
 816                 }
 817
 818                 /* outdat endpoints */
 819                 for (j = 0; j < N_OUT_URB; ++j) {
 820                         portdata->out_urbs[j] = option_setup_urb (serial,
 821                         port->bulk_out_endpointAddress, USB_DIR_OUT, port,
 822                         portdata->out_buffer[j], OUT_BUFLEN, option_outdat_callback);
 823                 }
 824         }
 825 }
 826
 827
 828 /** send RTS/DTR state to the port.
 829  *
 830  * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
 831  * CDC.
 832 */
 833 static int option_send_setup(struct usb_serial_port *port)
 834 {
 835         struct usb_serial *serial = port->serial;
 836         struct option_port_private *portdata;
 837         int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
 838         dbg("%s", __func__);
 839
 840         portdata = usb_get_serial_port_data(port);
 841
 842         if (port->tty) {
 843                 int val = 0;
 844                 if (portdata->dtr_state)
 845                         val |= 0x01;
 846                 if (portdata->rts_state)
 847                         val |= 0x02;
 848
 849                 return usb_control_msg(serial->dev,
 850                                 usb_rcvctrlpipe(serial->dev, 0),
 851                                 0x22,0x21,val,ifNum,NULL,0,USB_CTRL_SET_TIMEOUT);
 852         }
 853
 854         return 0;
 855 }
 856
 857 static int option_startup(struct usb_serial *serial)
 858 {
 859         int i, j, err;
 860         struct usb_serial_port *port;
 861         struct option_port_private *portdata;
 862         u8 *buffer;
 863
 864         dbg("%s", __func__);
 865
 866         /* Now setup per port private data */
 867         for (i = 0; i < serial->num_ports; i++) {
 868                 port = serial->port[i];
 869                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
 870                 if (!portdata) {
 871                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
 872                                         __func__, i);
 873                         return (1);
 874                 }
 875
 876                 for (j = 0; j < N_IN_URB; j++) {
 877                         buffer = (u8 *)__get_free_page(GFP_KERNEL);
 878                         if (!buffer)
 879                                 goto bail_out_error;
 880                         portdata->in_buffer[j] = buffer;
 881                 }
 882
 883                 for (j = 0; j < N_OUT_URB; j++) {
 884                         buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
 885                         if (!buffer)
 886                                 goto bail_out_error2;
 887                         portdata->out_buffer[j] = buffer;
 888                 }
 889
 890                 usb_set_serial_port_data(port, portdata);
 891
 892                 if (! port->interrupt_in_urb)
 893                         continue;
 894                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 895                 if (err)
 896                         dbg("%s: submit irq_in urb failed %d",
 897                                 __func__, err);
 898         }
 899
 900         option_setup_urbs(serial);
 901
 902         return (0);
 903
 904 bail_out_error2:
 905         for (j = 0; j < N_OUT_URB; j++)
 906                 kfree(portdata->out_buffer[j]);
 907 bail_out_error:
 908         for (j = 0; j < N_IN_URB; j++)
 909                 if (portdata->in_buffer[j])
 910                         free_page((unsigned long)portdata->in_buffer[j]);
 911         kfree(portdata);
 912         return 1;
 913 }
 914
 915 static void option_shutdown(struct usb_serial *serial)
 916 {
 917         int i, j;
 918         struct usb_serial_port *port;
 919         struct option_port_private *portdata;
 920
 921         dbg("%s", __func__);
 922
 923         /* Stop reading/writing urbs */
 924         for (i = 0; i < serial->num_ports; ++i) {
 925                 port = serial->port[i];
 926                 portdata = usb_get_serial_port_data(port);
 927                 for (j = 0; j < N_IN_URB; j++)
 928                         usb_kill_urb(portdata->in_urbs[j]);
 929                 for (j = 0; j < N_OUT_URB; j++)
 930                         usb_kill_urb(portdata->out_urbs[j]);
 931         }
 932
 933         /* Now free them */
 934         for (i = 0; i < serial->num_ports; ++i) {
 935                 port = serial->port[i];
 936                 portdata = usb_get_serial_port_data(port);
 937
 938                 for (j = 0; j < N_IN_URB; j++) {
 939                         if (portdata->in_urbs[j]) {
 940                                 usb_free_urb(portdata->in_urbs[j]);
 941                                 free_page((unsigned long)portdata->in_buffer[j]);
 942                                 portdata->in_urbs[j] = NULL;
 943                         }
 944                 }
 945                 for (j = 0; j < N_OUT_URB; j++) {
 946                         if (portdata->out_urbs[j]) {
 947                                 usb_free_urb(portdata->out_urbs[j]);
 948                                 kfree(portdata->out_buffer[j]);
 949                                 portdata->out_urbs[j] = NULL;
 950                         }
 951                 }
 952         }
 953
 954         /* Now free per port private data */
 955         for (i = 0; i < serial->num_ports; i++) {
 956                 port = serial->port[i];
 957                 kfree(usb_get_serial_port_data(port));
 958         }
 959 }
 960
 961 MODULE_AUTHOR(DRIVER_AUTHOR);
 962 MODULE_DESCRIPTION(DRIVER_DESC);
 963 MODULE_VERSION(DRIVER_VERSION);
 964 MODULE_LICENSE("GPL");
 965
 966 #ifdef CONFIG_USB_DEBUG
 967 module_param(debug, bool, S_IRUGO | S_IWUSR);
 968 MODULE_PARM_DESC(debug, "Debug messages");
 969 #endif
 970