git.oblomov.eu Git - linux-2.6/blob - drivers/usb/serial/option.c

   1 /*
   2   USB Driver for GSM modems
   3
   4   Copyright (C) 2005  Matthias Urlichs <smurf@smurf.noris.de>
   5
   6   This driver is free software; you can redistribute it and/or modify
   7   it under the terms of Version 2 of the GNU General Public License as
   8   published by the Free Software Foundation.
   9
  10   Portions copied from the Keyspan driver by Hugh Blemings <hugh@blemings.org>
  11
  12   History: see the git log.
  13
  14   Work sponsored by: Sigos GmbH, Germany <info@sigos.de>
  15
  16   This driver exists because the "normal" serial driver doesn't work too well
  17   with GSM modems. Issues:
  18   - data loss -- one single Receive URB is not nearly enough
  19   - nonstandard flow (Option devices) control
  20   - controlling the baud rate doesn't make sense
  21
  22   This driver is named "option" because the most common device it's
  23   used for is a PC-Card (with an internal OHCI-USB interface, behind
  24   which the GSM interface sits), made by Option Inc.
  25
  26   Some of the "one port" devices actually exhibit multiple USB instances
  27   on the USB bus. This is not a bug, these ports are used for different
  28   device features.
  29 */
  30
  31 #define DRIVER_VERSION "v0.7.1"
  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 /* 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_interrupt_in  = NUM_DONT_CARE,
 329         .num_bulk_in       = NUM_DONT_CARE,
 330         .num_bulk_out      = NUM_DONT_CARE,
 331         .num_ports         = 1,
 332         .open              = option_open,
 333         .close             = option_close,
 334         .write             = option_write,
 335         .write_room        = option_write_room,
 336         .chars_in_buffer   = option_chars_in_buffer,
 337         .throttle          = option_rx_throttle,
 338         .unthrottle        = option_rx_unthrottle,
 339         .ioctl             = option_ioctl,
 340         .set_termios       = option_set_termios,
 341         .break_ctl         = option_break_ctl,
 342         .tiocmget          = option_tiocmget,
 343         .tiocmset          = option_tiocmset,
 344         .attach            = option_startup,
 345         .shutdown          = option_shutdown,
 346         .read_int_callback = option_instat_callback,
 347 };
 348
 349 #ifdef CONFIG_USB_DEBUG
 350 static int debug;
 351 #else
 352 #define debug 0
 353 #endif
 354
 355 /* per port private data */
 356
 357 #define N_IN_URB 4
 358 #define N_OUT_URB 1
 359 #define IN_BUFLEN 4096
 360 #define OUT_BUFLEN 128
 361
 362 struct option_port_private {
 363         /* Input endpoints and buffer for this port */
 364         struct urb *in_urbs[N_IN_URB];
 365         u8 *in_buffer[N_IN_URB];
 366         /* Output endpoints and buffer for this port */
 367         struct urb *out_urbs[N_OUT_URB];
 368         u8 *out_buffer[N_OUT_URB];
 369         unsigned long out_busy;         /* Bit vector of URBs in use */
 370
 371         /* Settings for the port */
 372         int rts_state;  /* Handshaking pins (outputs) */
 373         int dtr_state;
 374         int cts_state;  /* Handshaking pins (inputs) */
 375         int dsr_state;
 376         int dcd_state;
 377         int ri_state;
 378
 379         unsigned long tx_start_time[N_OUT_URB];
 380 };
 381
 382 /* Functions used by new usb-serial code. */
 383 static int __init option_init(void)
 384 {
 385         int retval;
 386         retval = usb_serial_register(&option_1port_device);
 387         if (retval)
 388                 goto failed_1port_device_register;
 389         retval = usb_register(&option_driver);
 390         if (retval)
 391                 goto failed_driver_register;
 392
 393         info(DRIVER_DESC ": " DRIVER_VERSION);
 394
 395         return 0;
 396
 397 failed_driver_register:
 398         usb_serial_deregister (&option_1port_device);
 399 failed_1port_device_register:
 400         return retval;
 401 }
 402
 403 static void __exit option_exit(void)
 404 {
 405         usb_deregister (&option_driver);
 406         usb_serial_deregister (&option_1port_device);
 407 }
 408
 409 module_init(option_init);
 410 module_exit(option_exit);
 411
 412 static void option_rx_throttle(struct usb_serial_port *port)
 413 {
 414         dbg("%s", __FUNCTION__);
 415 }
 416
 417 static void option_rx_unthrottle(struct usb_serial_port *port)
 418 {
 419         dbg("%s", __FUNCTION__);
 420 }
 421
 422 static void option_break_ctl(struct usb_serial_port *port, int break_state)
 423 {
 424         /* Unfortunately, I don't know how to send a break */
 425         dbg("%s", __FUNCTION__);
 426 }
 427
 428 static void option_set_termios(struct usb_serial_port *port,
 429                         struct ktermios *old_termios)
 430 {
 431         dbg("%s", __FUNCTION__);
 432         /* Doesn't support option setting */
 433         tty_termios_copy_hw(port->tty->termios, old_termios);
 434         option_send_setup(port);
 435 }
 436
 437 static int option_tiocmget(struct usb_serial_port *port, struct file *file)
 438 {
 439         unsigned int value;
 440         struct option_port_private *portdata;
 441
 442         portdata = usb_get_serial_port_data(port);
 443
 444         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
 445                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
 446                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
 447                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
 448                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
 449                 ((portdata->ri_state) ? TIOCM_RNG : 0);
 450
 451         return value;
 452 }
 453
 454 static int option_tiocmset(struct usb_serial_port *port, struct file *file,
 455                         unsigned int set, unsigned int clear)
 456 {
 457         struct option_port_private *portdata;
 458
 459         portdata = usb_get_serial_port_data(port);
 460
 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)", __FUNCTION__, 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", __FUNCTION__,
 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)", __FUNCTION__, 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", __FUNCTION__, urb);
 548
 549         endpoint = usb_pipeendpoint(urb->pipe);
 550         port = (struct usb_serial_port *) urb->context;
 551
 552         if (status) {
 553                 dbg("%s: nonzero status: %d on endpoint %02x.",
 554                     __FUNCTION__, 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", __FUNCTION__);
 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)", __FUNCTION__, 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", __FUNCTION__);
 583
 584         port = (struct usb_serial_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 = (struct usb_serial_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", __FUNCTION__);
 607         dbg("%s: urb %p port %p has data %p", __FUNCTION__,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", __FUNCTION__);
 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", __FUNCTION__, 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", __FUNCTION__,
 637                                 req_pkt->bRequestType,req_pkt->bRequest);
 638                 }
 639         } else
 640                 dbg("%s: error %d", __FUNCTION__, 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                                 __FUNCTION__, 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         for (i=0; i < N_OUT_URB; i++) {
 662                 this_urb = portdata->out_urbs[i];
 663                 if (this_urb && !test_bit(i, &portdata->out_busy))
 664                         data_len += OUT_BUFLEN;
 665         }
 666
 667         dbg("%s: %d", __FUNCTION__, data_len);
 668         return data_len;
 669 }
 670
 671 static int option_chars_in_buffer(struct usb_serial_port *port)
 672 {
 673         struct option_port_private *portdata;
 674         int i;
 675         int data_len = 0;
 676         struct urb *this_urb;
 677
 678         portdata = usb_get_serial_port_data(port);
 679
 680         for (i=0; i < N_OUT_URB; i++) {
 681                 this_urb = portdata->out_urbs[i];
 682                 if (this_urb && test_bit(i, &portdata->out_busy))
 683                         data_len += this_urb->transfer_buffer_length;
 684         }
 685         dbg("%s: %d", __FUNCTION__, data_len);
 686         return data_len;
 687 }
 688
 689 static int option_open(struct usb_serial_port *port, struct file *filp)
 690 {
 691         struct option_port_private *portdata;
 692         struct usb_serial *serial = port->serial;
 693         int i, err;
 694         struct urb *urb;
 695
 696         portdata = usb_get_serial_port_data(port);
 697
 698         dbg("%s", __FUNCTION__);
 699
 700         /* Set some sane defaults */
 701         portdata->rts_state = 1;
 702         portdata->dtr_state = 1;
 703
 704         /* Reset low level data toggle and start reading from endpoints */
 705         for (i = 0; i < N_IN_URB; i++) {
 706                 urb = portdata->in_urbs[i];
 707                 if (! urb)
 708                         continue;
 709                 if (urb->dev != serial->dev) {
 710                         dbg("%s: dev %p != %p", __FUNCTION__,
 711                                 urb->dev, serial->dev);
 712                         continue;
 713                 }
 714
 715                 /*
 716                  * make sure endpoint data toggle is synchronized with the
 717                  * device
 718                  */
 719                 usb_clear_halt(urb->dev, urb->pipe);
 720
 721                 err = usb_submit_urb(urb, GFP_KERNEL);
 722                 if (err) {
 723                         dbg("%s: submit urb %d failed (%d) %d",
 724                                 __FUNCTION__, i, err,
 725                                 urb->transfer_buffer_length);
 726                 }
 727         }
 728
 729         /* Reset low level data toggle on out endpoints */
 730         for (i = 0; i < N_OUT_URB; i++) {
 731                 urb = portdata->out_urbs[i];
 732                 if (! urb)
 733                         continue;
 734                 urb->dev = serial->dev;
 735                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 736                                 usb_pipeout(urb->pipe), 0); */
 737         }
 738
 739         port->tty->low_latency = 1;
 740
 741         option_send_setup(port);
 742
 743         return (0);
 744 }
 745
 746 static void option_close(struct usb_serial_port *port, struct file *filp)
 747 {
 748         int i;
 749         struct usb_serial *serial = port->serial;
 750         struct option_port_private *portdata;
 751
 752         dbg("%s", __FUNCTION__);
 753         portdata = usb_get_serial_port_data(port);
 754
 755         portdata->rts_state = 0;
 756         portdata->dtr_state = 0;
 757
 758         if (serial->dev) {
 759                 mutex_lock(&serial->disc_mutex);
 760                 if (!serial->disconnected)
 761                         option_send_setup(port);
 762                 mutex_unlock(&serial->disc_mutex);
 763
 764                 /* Stop reading/writing urbs */
 765                 for (i = 0; i < N_IN_URB; i++)
 766                         usb_kill_urb(portdata->in_urbs[i]);
 767                 for (i = 0; i < N_OUT_URB; i++)
 768                         usb_kill_urb(portdata->out_urbs[i]);
 769         }
 770         port->tty = NULL;
 771 }
 772
 773 /* Helper functions used by option_setup_urbs */
 774 static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
 775                 int dir, void *ctx, char *buf, int len,
 776                 void (*callback)(struct urb *))
 777 {
 778         struct urb *urb;
 779
 780         if (endpoint == -1)
 781                 return NULL;            /* endpoint not needed */
 782
 783         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 784         if (urb == NULL) {
 785                 dbg("%s: alloc for endpoint %d failed.", __FUNCTION__, endpoint);
 786                 return NULL;
 787         }
 788
 789                 /* Fill URB using supplied data. */
 790         usb_fill_bulk_urb(urb, serial->dev,
 791                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 792                       buf, len, callback, ctx);
 793
 794         return urb;
 795 }
 796
 797 /* Setup urbs */
 798 static void option_setup_urbs(struct usb_serial *serial)
 799 {
 800         int i,j;
 801         struct usb_serial_port *port;
 802         struct option_port_private *portdata;
 803
 804         dbg("%s", __FUNCTION__);
 805
 806         for (i = 0; i < serial->num_ports; i++) {
 807                 port = serial->port[i];
 808                 portdata = usb_get_serial_port_data(port);
 809
 810         /* Do indat endpoints first */
 811                 for (j = 0; j < N_IN_URB; ++j) {
 812                         portdata->in_urbs[j] = option_setup_urb (serial,
 813                         port->bulk_in_endpointAddress, USB_DIR_IN, port,
 814                         portdata->in_buffer[j], IN_BUFLEN, option_indat_callback);
 815                 }
 816
 817                 /* outdat endpoints */
 818                 for (j = 0; j < N_OUT_URB; ++j) {
 819                         portdata->out_urbs[j] = option_setup_urb (serial,
 820                         port->bulk_out_endpointAddress, USB_DIR_OUT, port,
 821                         portdata->out_buffer[j], OUT_BUFLEN, option_outdat_callback);
 822                 }
 823         }
 824 }
 825
 826 static int option_send_setup(struct usb_serial_port *port)
 827 {
 828         struct usb_serial *serial = port->serial;
 829         struct option_port_private *portdata;
 830
 831         dbg("%s", __FUNCTION__);
 832
 833         if (port->number != 0)
 834                 return 0;
 835
 836         portdata = usb_get_serial_port_data(port);
 837
 838         if (port->tty) {
 839                 int val = 0;
 840                 if (portdata->dtr_state)
 841                         val |= 0x01;
 842                 if (portdata->rts_state)
 843                         val |= 0x02;
 844
 845                 return usb_control_msg(serial->dev,
 846                                 usb_rcvctrlpipe(serial->dev, 0),
 847                                 0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT);
 848         }
 849
 850         return 0;
 851 }
 852
 853 static int option_startup(struct usb_serial *serial)
 854 {
 855         int i, j, err;
 856         struct usb_serial_port *port;
 857         struct option_port_private *portdata;
 858         u8 *buffer;
 859
 860         dbg("%s", __FUNCTION__);
 861
 862         /* Now setup per port private data */
 863         for (i = 0; i < serial->num_ports; i++) {
 864                 port = serial->port[i];
 865                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
 866                 if (!portdata) {
 867                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
 868                                         __FUNCTION__, i);
 869                         return (1);
 870                 }
 871
 872                 for (j = 0; j < N_IN_URB; j++) {
 873                         buffer = (u8 *)__get_free_page(GFP_KERNEL);
 874                         if (!buffer)
 875                                 goto bail_out_error;
 876                         portdata->in_buffer[j] = buffer;
 877                 }
 878
 879                 for (j = 0; j < N_OUT_URB; j++) {
 880                         buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
 881                         if (!buffer)
 882                                 goto bail_out_error2;
 883                         portdata->out_buffer[j] = buffer;
 884                 }
 885
 886                 usb_set_serial_port_data(port, portdata);
 887
 888                 if (! port->interrupt_in_urb)
 889                         continue;
 890                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 891                 if (err)
 892                         dbg("%s: submit irq_in urb failed %d",
 893                                 __FUNCTION__, err);
 894         }
 895
 896         option_setup_urbs(serial);
 897
 898         return (0);
 899
 900 bail_out_error2:
 901         for (j = 0; j < N_OUT_URB; j++)
 902                 kfree(portdata->out_buffer[j]);
 903 bail_out_error:
 904         for (j = 0; j < N_IN_URB; j++)
 905                 if (portdata->in_buffer[j])
 906                         free_page((unsigned long)portdata->in_buffer[j]);
 907         kfree(portdata);
 908         return 1;
 909 }
 910
 911 static void option_shutdown(struct usb_serial *serial)
 912 {
 913         int i, j;
 914         struct usb_serial_port *port;
 915         struct option_port_private *portdata;
 916
 917         dbg("%s", __FUNCTION__);
 918
 919         /* Stop reading/writing urbs */
 920         for (i = 0; i < serial->num_ports; ++i) {
 921                 port = serial->port[i];
 922                 portdata = usb_get_serial_port_data(port);
 923                 for (j = 0; j < N_IN_URB; j++)
 924                         usb_kill_urb(portdata->in_urbs[j]);
 925                 for (j = 0; j < N_OUT_URB; j++)
 926                         usb_kill_urb(portdata->out_urbs[j]);
 927         }
 928
 929         /* Now free them */
 930         for (i = 0; i < serial->num_ports; ++i) {
 931                 port = serial->port[i];
 932                 portdata = usb_get_serial_port_data(port);
 933
 934                 for (j = 0; j < N_IN_URB; j++) {
 935                         if (portdata->in_urbs[j]) {
 936                                 usb_free_urb(portdata->in_urbs[j]);
 937                                 free_page((unsigned long)portdata->in_buffer[j]);
 938                                 portdata->in_urbs[j] = NULL;
 939                         }
 940                 }
 941                 for (j = 0; j < N_OUT_URB; j++) {
 942                         if (portdata->out_urbs[j]) {
 943                                 usb_free_urb(portdata->out_urbs[j]);
 944                                 kfree(portdata->out_buffer[j]);
 945                                 portdata->out_urbs[j] = NULL;
 946                         }
 947                 }
 948         }
 949
 950         /* Now free per port private data */
 951         for (i = 0; i < serial->num_ports; i++) {
 952                 port = serial->port[i];
 953                 kfree(usb_get_serial_port_data(port));
 954         }
 955 }
 956
 957 MODULE_AUTHOR(DRIVER_AUTHOR);
 958 MODULE_DESCRIPTION(DRIVER_DESC);
 959 MODULE_VERSION(DRIVER_VERSION);
 960 MODULE_LICENSE("GPL");
 961
 962 #ifdef CONFIG_USB_DEBUG
 963 module_param(debug, bool, S_IRUGO | S_IWUSR);
 964 MODULE_PARM_DESC(debug, "Debug messages");
 965 #endif
 966