err.no 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 "v0.7.2"
  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 ONDA_VENDOR_ID                          0x19d2
 188 #define ONDA_PRODUCT_ET502HS                    0x0002
 189
 190 #define BANDRICH_VENDOR_ID                      0x1A8D
 191 #define BANDRICH_PRODUCT_C100_1                 0x1002
 192 #define BANDRICH_PRODUCT_C100_2                 0x1003
 193
 194 #define AMOI_VENDOR_ID                  0x1614
 195 #define AMOI_PRODUCT_9508                       0x0800
 196
 197 #define QUALCOMM_VENDOR_ID                      0x05C6
 198
 199 #define MAXON_VENDOR_ID                         0x16d8
 200
 201 static struct usb_device_id option_ids[] = {
 202         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
 203         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
 204         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
 205         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD) },
 206         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD_LIGHT) },
 207         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS) },
 208         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_LIGHT) },
 209         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD) },
 210         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT) },
 211         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
 212         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA_BUS) },
 213         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER) },
 214         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER_BUS) },
 215         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX_READY) },
 216         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX) },
 217         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_LIGHT) },
 218         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_GT) },
 219         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_EX) },
 220         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_LIGHT) },
 221         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_GT) },
 222         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_EX) },
 223         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_MODEM) },
 224         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_NETWORK) },
 225         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_MODEM) },
 226         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_NETWORK) },
 227         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM) },
 228         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK) },
 229         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_LITE) },
 230         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) },
 231         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) },
 232         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_LITE) },
 233         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_GT) },
 234         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_EX) },
 235         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) },
 236         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_NETWORK) },
 237         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600) },
 238         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220, 0xff, 0xff, 0xff) },
 239         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS, 0xff, 0xff, 0xff) },
 240         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1401) },
 241         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1403) },
 242         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1405) },
 243         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1406) },
 244         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1408) },
 245         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1409) },
 246         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1410) },
 247         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1411) },
 248         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1412) },
 249         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1413) },
 250         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1414) },
 251         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1415) },
 252         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1416) },
 253         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1417) },
 254         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1418) },
 255         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1419) },
 256         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_9508) },
 257         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */
 258         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */
 259         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) }, /* Novatel Merlin EX720/V740/X720 */
 260         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V720) }, /* Novatel Merlin V720/S720/PC720 */
 261         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U730) }, /* Novatel U730/U740 (VF version) */
 262         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U740) }, /* Novatel U740 */
 263         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U870) }, /* Novatel U870 */
 264         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_XU870) }, /* Novatel Merlin XU870 HSDPA/3G */
 265         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_X950D) }, /* Novatel X950D */
 266         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EV620) }, /* Novatel EV620/ES620 CDMA/EV-DO */
 267         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES720) }, /* Novatel ES620/ES720/U720/USB720 */
 268         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E725) }, /* Novatel E725/E726 */
 269         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES620) }, /* Novatel Merlin ES620 SM Bus */
 270         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU730) }, /* Novatel EU730 and Vodafone EU740 */
 271         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU740) }, /* Novatel non-Vodafone EU740 */
 272         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) }, /* Novatel EU850D/EU860D/EU870D */
 273         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) }, /* Novatel MC930D/MC950D */
 274         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) }, /* Novatel MC727/U727/USB727 */
 275         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U727) }, /* Novatel U727 */
 276         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_1) }, /* Novatel EVDO product */
 277         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_1) }, /* Novatel HSPA product */
 278         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_1) }, /* Novatel Embedded product */
 279         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_1) }, /* Novatel Global product */
 280         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_2) }, /* Novatel EVDO product */
 281         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_2) }, /* Novatel HSPA product */
 282         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_2) }, /* Novatel Embedded product */
 283         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_2) }, /* Novatel Global product */
 284
 285         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01) },
 286         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01A) },
 287         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H02) },
 288
 289         { USB_DEVICE(DELL_VENDOR_ID, 0x8114) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */
 290         { USB_DEVICE(DELL_VENDOR_ID, 0x8115) }, /* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 291         { USB_DEVICE(DELL_VENDOR_ID, 0x8116) }, /* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 292         { USB_DEVICE(DELL_VENDOR_ID, 0x8117) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO ExpressCard == Novatel Merlin XV620 CDMA/EV-DO */
 293         { USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard == Novatel Merlin XU870 HSDPA/3G */
 294         { USB_DEVICE(DELL_VENDOR_ID, 0x8128) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite E720 CDMA/EV-DO */
 295         { USB_DEVICE(DELL_VENDOR_ID, 0x8129) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite ET620 CDMA/EV-DO */
 296         { USB_DEVICE(DELL_VENDOR_ID, 0x8133) }, /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
 297         { USB_DEVICE(DELL_VENDOR_ID, 0x8136) }, /* Dell Wireless HSDPA 5520 == Novatel Expedite EU860D */
 298         { USB_DEVICE(DELL_VENDOR_ID, 0x8137) }, /* Dell Wireless HSDPA 5520 */
 299         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },
 300         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
 301         { USB_DEVICE(AXESSTEL_VENDOR_ID, AXESSTEL_PRODUCT_MV110H) },
 302         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_ET502HS) },
 303         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
 304         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
 305         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
 306         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
 307         { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */
 308         { USB_DEVICE(0x19d2, 0x0001) },         /* Telstra NextG CDMA */
 309         { } /* Terminating entry */
 310 };
 311 MODULE_DEVICE_TABLE(usb, option_ids);
 312
 313 static struct usb_driver option_driver = {
 314         .name       = "option",
 315         .probe      = usb_serial_probe,
 316         .disconnect = usb_serial_disconnect,
 317         .id_table   = option_ids,
 318         .no_dynamic_id =        1,
 319 };
 320
 321 /* The card has three separate interfaces, which the serial driver
 322  * recognizes separately, thus num_port=1.
 323  */
 324
 325 static struct usb_serial_driver option_1port_device = {
 326         .driver = {
 327                 .owner =        THIS_MODULE,
 328                 .name =         "option1",
 329         },
 330         .description       = "GSM modem (1-port)",
 331         .usb_driver        = &option_driver,
 332         .id_table          = option_ids,
 333         .num_ports         = 1,
 334         .open              = option_open,
 335         .close             = option_close,
 336         .write             = option_write,
 337         .write_room        = option_write_room,
 338         .chars_in_buffer   = option_chars_in_buffer,
 339         .throttle          = option_rx_throttle,
 340         .unthrottle        = option_rx_unthrottle,
 341         .ioctl             = option_ioctl,
 342         .set_termios       = option_set_termios,
 343         .break_ctl         = option_break_ctl,
 344         .tiocmget          = option_tiocmget,
 345         .tiocmset          = option_tiocmset,
 346         .attach            = option_startup,
 347         .shutdown          = option_shutdown,
 348         .read_int_callback = option_instat_callback,
 349 };
 350
 351 #ifdef CONFIG_USB_DEBUG
 352 static int debug;
 353 #else
 354 #define debug 0
 355 #endif
 356
 357 /* per port private data */
 358
 359 #define N_IN_URB 4
 360 #define N_OUT_URB 1
 361 #define IN_BUFLEN 4096
 362 #define OUT_BUFLEN 128
 363
 364 struct option_port_private {
 365         /* Input endpoints and buffer for this port */
 366         struct urb *in_urbs[N_IN_URB];
 367         u8 *in_buffer[N_IN_URB];
 368         /* Output endpoints and buffer for this port */
 369         struct urb *out_urbs[N_OUT_URB];
 370         u8 *out_buffer[N_OUT_URB];
 371         unsigned long out_busy;         /* Bit vector of URBs in use */
 372
 373         /* Settings for the port */
 374         int rts_state;  /* Handshaking pins (outputs) */
 375         int dtr_state;
 376         int cts_state;  /* Handshaking pins (inputs) */
 377         int dsr_state;
 378         int dcd_state;
 379         int ri_state;
 380
 381         unsigned long tx_start_time[N_OUT_URB];
 382 };
 383
 384 /* Functions used by new usb-serial code. */
 385 static int __init option_init(void)
 386 {
 387         int retval;
 388         retval = usb_serial_register(&option_1port_device);
 389         if (retval)
 390                 goto failed_1port_device_register;
 391         retval = usb_register(&option_driver);
 392         if (retval)
 393                 goto failed_driver_register;
 394
 395         info(DRIVER_DESC ": " DRIVER_VERSION);
 396
 397         return 0;
 398
 399 failed_driver_register:
 400         usb_serial_deregister (&option_1port_device);
 401 failed_1port_device_register:
 402         return retval;
 403 }
 404
 405 static void __exit option_exit(void)
 406 {
 407         usb_deregister (&option_driver);
 408         usb_serial_deregister (&option_1port_device);
 409 }
 410
 411 module_init(option_init);
 412 module_exit(option_exit);
 413
 414 static void option_rx_throttle(struct usb_serial_port *port)
 415 {
 416         dbg("%s", __func__);
 417 }
 418
 419 static void option_rx_unthrottle(struct usb_serial_port *port)
 420 {
 421         dbg("%s", __func__);
 422 }
 423
 424 static void option_break_ctl(struct usb_serial_port *port, int break_state)
 425 {
 426         /* Unfortunately, I don't know how to send a break */
 427         dbg("%s", __func__);
 428 }
 429
 430 static void option_set_termios(struct usb_serial_port *port,
 431                         struct ktermios *old_termios)
 432 {
 433         dbg("%s", __func__);
 434         /* Doesn't support option setting */
 435         tty_termios_copy_hw(port->tty->termios, old_termios);
 436         option_send_setup(port);
 437 }
 438
 439 static int option_tiocmget(struct usb_serial_port *port, struct file *file)
 440 {
 441         unsigned int value;
 442         struct option_port_private *portdata;
 443
 444         portdata = usb_get_serial_port_data(port);
 445
 446         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
 447                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
 448                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
 449                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
 450                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
 451                 ((portdata->ri_state) ? TIOCM_RNG : 0);
 452
 453         return value;
 454 }
 455
 456 static int option_tiocmset(struct usb_serial_port *port, struct file *file,
 457                         unsigned int set, unsigned int clear)
 458 {
 459         struct option_port_private *portdata;
 460
 461         portdata = usb_get_serial_port_data(port);
 462
 463         /* FIXME: what locks portdata fields ? */
 464         if (set & TIOCM_RTS)
 465                 portdata->rts_state = 1;
 466         if (set & TIOCM_DTR)
 467                 portdata->dtr_state = 1;
 468
 469         if (clear & TIOCM_RTS)
 470                 portdata->rts_state = 0;
 471         if (clear & TIOCM_DTR)
 472                 portdata->dtr_state = 0;
 473         return option_send_setup(port);
 474 }
 475
 476 static int option_ioctl(struct usb_serial_port *port, struct file *file,
 477                         unsigned int cmd, unsigned long arg)
 478 {
 479         return -ENOIOCTLCMD;
 480 }
 481
 482 /* Write */
 483 static int option_write(struct usb_serial_port *port,
 484                         const unsigned char *buf, int count)
 485 {
 486         struct option_port_private *portdata;
 487         int i;
 488         int left, todo;
 489         struct urb *this_urb = NULL; /* spurious */
 490         int err;
 491
 492         portdata = usb_get_serial_port_data(port);
 493
 494         dbg("%s: write (%d chars)", __func__, count);
 495
 496         i = 0;
 497         left = count;
 498         for (i=0; left > 0 && i < N_OUT_URB; i++) {
 499                 todo = left;
 500                 if (todo > OUT_BUFLEN)
 501                         todo = OUT_BUFLEN;
 502
 503                 this_urb = portdata->out_urbs[i];
 504                 if (test_and_set_bit(i, &portdata->out_busy)) {
 505                         if (time_before(jiffies,
 506                                         portdata->tx_start_time[i] + 10 * HZ))
 507                                 continue;
 508                         usb_unlink_urb(this_urb);
 509                         continue;
 510                 }
 511                 if (this_urb->status != 0)
 512                         dbg("usb_write %p failed (err=%d)",
 513                                 this_urb, this_urb->status);
 514
 515                 dbg("%s: endpoint %d buf %d", __func__,
 516                         usb_pipeendpoint(this_urb->pipe), i);
 517
 518                 /* send the data */
 519                 memcpy (this_urb->transfer_buffer, buf, todo);
 520                 this_urb->transfer_buffer_length = todo;
 521
 522                 this_urb->dev = port->serial->dev;
 523                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 524                 if (err) {
 525                         dbg("usb_submit_urb %p (write bulk) failed "
 526                                 "(%d, has %d)", this_urb,
 527                                 err, this_urb->status);
 528                         clear_bit(i, &portdata->out_busy);
 529                         continue;
 530                 }
 531                 portdata->tx_start_time[i] = jiffies;
 532                 buf += todo;
 533                 left -= todo;
 534         }
 535
 536         count -= left;
 537         dbg("%s: wrote (did %d)", __func__, count);
 538         return count;
 539 }
 540
 541 static void option_indat_callback(struct urb *urb)
 542 {
 543         int err;
 544         int endpoint;
 545         struct usb_serial_port *port;
 546         struct tty_struct *tty;
 547         unsigned char *data = urb->transfer_buffer;
 548         int status = urb->status;
 549
 550         dbg("%s: %p", __func__, urb);
 551
 552         endpoint = usb_pipeendpoint(urb->pipe);
 553         port =  urb->context;
 554
 555         if (status) {
 556                 dbg("%s: nonzero status: %d on endpoint %02x.",
 557                     __func__, status, endpoint);
 558         } else {
 559                 tty = port->tty;
 560                 if (urb->actual_length) {
 561                         tty_buffer_request_room(tty, urb->actual_length);
 562                         tty_insert_flip_string(tty, data, urb->actual_length);
 563                         tty_flip_buffer_push(tty);
 564                 } else {
 565                         dbg("%s: empty read urb received", __func__);
 566                 }
 567
 568                 /* Resubmit urb so we continue receiving */
 569                 if (port->open_count && status != -ESHUTDOWN) {
 570                         err = usb_submit_urb(urb, GFP_ATOMIC);
 571                         if (err)
 572                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 573                                         "(%d)", __func__, err);
 574                 }
 575         }
 576         return;
 577 }
 578
 579 static void option_outdat_callback(struct urb *urb)
 580 {
 581         struct usb_serial_port *port;
 582         struct option_port_private *portdata;
 583         int i;
 584
 585         dbg("%s", __func__);
 586
 587         port =  urb->context;
 588
 589         usb_serial_port_softint(port);
 590
 591         portdata = usb_get_serial_port_data(port);
 592         for (i = 0; i < N_OUT_URB; ++i) {
 593                 if (portdata->out_urbs[i] == urb) {
 594                         smp_mb__before_clear_bit();
 595                         clear_bit(i, &portdata->out_busy);
 596                         break;
 597                 }
 598         }
 599 }
 600
 601 static void option_instat_callback(struct urb *urb)
 602 {
 603         int err;
 604         int status = urb->status;
 605         struct usb_serial_port *port =  urb->context;
 606         struct option_port_private *portdata = usb_get_serial_port_data(port);
 607         struct usb_serial *serial = port->serial;
 608
 609         dbg("%s", __func__);
 610         dbg("%s: urb %p port %p has data %p", __func__,urb,port,portdata);
 611
 612         if (status == 0) {
 613                 struct usb_ctrlrequest *req_pkt =
 614                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 615
 616                 if (!req_pkt) {
 617                         dbg("%s: NULL req_pkt\n", __func__);
 618                         return;
 619                 }
 620                 if ((req_pkt->bRequestType == 0xA1) &&
 621                                 (req_pkt->bRequest == 0x20)) {
 622                         int old_dcd_state;
 623                         unsigned char signals = *((unsigned char *)
 624                                         urb->transfer_buffer +
 625                                         sizeof(struct usb_ctrlrequest));
 626
 627                         dbg("%s: signal x%x", __func__, signals);
 628
 629                         old_dcd_state = portdata->dcd_state;
 630                         portdata->cts_state = 1;
 631                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 632                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 633                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 634
 635                         if (port->tty && !C_CLOCAL(port->tty) &&
 636                                         old_dcd_state && !portdata->dcd_state)
 637                                 tty_hangup(port->tty);
 638                 } else {
 639                         dbg("%s: type %x req %x", __func__,
 640                                 req_pkt->bRequestType,req_pkt->bRequest);
 641                 }
 642         } else
 643                 dbg("%s: error %d", __func__, status);
 644
 645         /* Resubmit urb so we continue receiving IRQ data */
 646         if (status != -ESHUTDOWN) {
 647                 urb->dev = serial->dev;
 648                 err = usb_submit_urb(urb, GFP_ATOMIC);
 649                 if (err)
 650                         dbg("%s: resubmit intr urb failed. (%d)",
 651                                 __func__, err);
 652         }
 653 }
 654
 655 static int option_write_room(struct usb_serial_port *port)
 656 {
 657         struct option_port_private *portdata;
 658         int i;
 659         int data_len = 0;
 660         struct urb *this_urb;
 661
 662         portdata = usb_get_serial_port_data(port);
 663
 664
 665         for (i=0; i < N_OUT_URB; i++) {
 666                 this_urb = portdata->out_urbs[i];
 667                 if (this_urb && !test_bit(i, &portdata->out_busy))
 668                         data_len += OUT_BUFLEN;
 669         }
 670
 671         dbg("%s: %d", __func__, data_len);
 672         return data_len;
 673 }
 674
 675 static int option_chars_in_buffer(struct usb_serial_port *port)
 676 {
 677         struct option_port_private *portdata;
 678         int i;
 679         int data_len = 0;
 680         struct urb *this_urb;
 681
 682         portdata = usb_get_serial_port_data(port);
 683
 684         for (i=0; i < N_OUT_URB; i++) {
 685                 this_urb = portdata->out_urbs[i];
 686                 /* FIXME: This locking is insufficient as this_urb may
 687                    go unused during the test */
 688                 if (this_urb && test_bit(i, &portdata->out_busy))
 689                         data_len += this_urb->transfer_buffer_length;
 690         }
 691         dbg("%s: %d", __func__, data_len);
 692         return data_len;
 693 }
 694
 695 static int option_open(struct usb_serial_port *port, struct file *filp)
 696 {
 697         struct option_port_private *portdata;
 698         struct usb_serial *serial = port->serial;
 699         int i, err;
 700         struct urb *urb;
 701
 702         portdata = usb_get_serial_port_data(port);
 703
 704         dbg("%s", __func__);
 705
 706         /* Set some sane defaults */
 707         portdata->rts_state = 1;
 708         portdata->dtr_state = 1;
 709
 710         /* Reset low level data toggle and start reading from endpoints */
 711         for (i = 0; i < N_IN_URB; i++) {
 712                 urb = portdata->in_urbs[i];
 713                 if (! urb)
 714                         continue;
 715                 if (urb->dev != serial->dev) {
 716                         dbg("%s: dev %p != %p", __func__,
 717                                 urb->dev, serial->dev);
 718                         continue;
 719                 }
 720
 721                 /*
 722                  * make sure endpoint data toggle is synchronized with the
 723                  * device
 724                  */
 725                 usb_clear_halt(urb->dev, urb->pipe);
 726
 727                 err = usb_submit_urb(urb, GFP_KERNEL);
 728                 if (err) {
 729                         dbg("%s: submit urb %d failed (%d) %d",
 730                                 __func__, i, err,
 731                                 urb->transfer_buffer_length);
 732                 }
 733         }
 734
 735         /* Reset low level data toggle on out endpoints */
 736         for (i = 0; i < N_OUT_URB; i++) {
 737                 urb = portdata->out_urbs[i];
 738                 if (! urb)
 739                         continue;
 740                 urb->dev = serial->dev;
 741                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 742                                 usb_pipeout(urb->pipe), 0); */
 743         }
 744
 745         port->tty->low_latency = 1;
 746
 747         option_send_setup(port);
 748
 749         return (0);
 750 }
 751
 752 static void option_close(struct usb_serial_port *port, struct file *filp)
 753 {
 754         int i;
 755         struct usb_serial *serial = port->serial;
 756         struct option_port_private *portdata;
 757
 758         dbg("%s", __func__);
 759         portdata = usb_get_serial_port_data(port);
 760
 761         portdata->rts_state = 0;
 762         portdata->dtr_state = 0;
 763
 764         if (serial->dev) {
 765                 mutex_lock(&serial->disc_mutex);
 766                 if (!serial->disconnected)
 767                         option_send_setup(port);
 768                 mutex_unlock(&serial->disc_mutex);
 769
 770                 /* Stop reading/writing urbs */
 771                 for (i = 0; i < N_IN_URB; i++)
 772                         usb_kill_urb(portdata->in_urbs[i]);
 773                 for (i = 0; i < N_OUT_URB; i++)
 774                         usb_kill_urb(portdata->out_urbs[i]);
 775         }
 776         port->tty = NULL;
 777 }
 778
 779 /* Helper functions used by option_setup_urbs */
 780 static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
 781                 int dir, void *ctx, char *buf, int len,
 782                 void (*callback)(struct urb *))
 783 {
 784         struct urb *urb;
 785
 786         if (endpoint == -1)
 787                 return NULL;            /* endpoint not needed */
 788
 789         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 790         if (urb == NULL) {
 791                 dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
 792                 return NULL;
 793         }
 794
 795                 /* Fill URB using supplied data. */
 796         usb_fill_bulk_urb(urb, serial->dev,
 797                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 798                       buf, len, callback, ctx);
 799
 800         return urb;
 801 }
 802
 803 /* Setup urbs */
 804 static void option_setup_urbs(struct usb_serial *serial)
 805 {
 806         int i,j;
 807         struct usb_serial_port *port;
 808         struct option_port_private *portdata;
 809
 810         dbg("%s", __func__);
 811
 812         for (i = 0; i < serial->num_ports; i++) {
 813                 port = serial->port[i];
 814                 portdata = usb_get_serial_port_data(port);
 815
 816         /* Do indat endpoints first */
 817                 for (j = 0; j < N_IN_URB; ++j) {
 818                         portdata->in_urbs[j] = option_setup_urb (serial,
 819                         port->bulk_in_endpointAddress, USB_DIR_IN, port,
 820                         portdata->in_buffer[j], IN_BUFLEN, option_indat_callback);
 821                 }
 822
 823                 /* outdat endpoints */
 824                 for (j = 0; j < N_OUT_URB; ++j) {
 825                         portdata->out_urbs[j] = option_setup_urb (serial,
 826                         port->bulk_out_endpointAddress, USB_DIR_OUT, port,
 827                         portdata->out_buffer[j], OUT_BUFLEN, option_outdat_callback);
 828                 }
 829         }
 830 }
 831
 832
 833 /** send RTS/DTR state to the port.
 834  *
 835  * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
 836  * CDC.
 837 */
 838 static int option_send_setup(struct usb_serial_port *port)
 839 {
 840         struct usb_serial *serial = port->serial;
 841         struct option_port_private *portdata;
 842         int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
 843         dbg("%s", __func__);
 844
 845         portdata = usb_get_serial_port_data(port);
 846
 847         if (port->tty) {
 848                 int val = 0;
 849                 if (portdata->dtr_state)
 850                         val |= 0x01;
 851                 if (portdata->rts_state)
 852                         val |= 0x02;
 853
 854                 return usb_control_msg(serial->dev,
 855                                 usb_rcvctrlpipe(serial->dev, 0),
 856                                 0x22,0x21,val,ifNum,NULL,0,USB_CTRL_SET_TIMEOUT);
 857         }
 858
 859         return 0;
 860 }
 861
 862 static int option_startup(struct usb_serial *serial)
 863 {
 864         int i, j, err;
 865         struct usb_serial_port *port;
 866         struct option_port_private *portdata;
 867         u8 *buffer;
 868
 869         dbg("%s", __func__);
 870
 871         /* Now setup per port private data */
 872         for (i = 0; i < serial->num_ports; i++) {
 873                 port = serial->port[i];
 874                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
 875                 if (!portdata) {
 876                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
 877                                         __func__, i);
 878                         return (1);
 879                 }
 880
 881                 for (j = 0; j < N_IN_URB; j++) {
 882                         buffer = (u8 *)__get_free_page(GFP_KERNEL);
 883                         if (!buffer)
 884                                 goto bail_out_error;
 885                         portdata->in_buffer[j] = buffer;
 886                 }
 887
 888                 for (j = 0; j < N_OUT_URB; j++) {
 889                         buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
 890                         if (!buffer)
 891                                 goto bail_out_error2;
 892                         portdata->out_buffer[j] = buffer;
 893                 }
 894
 895                 usb_set_serial_port_data(port, portdata);
 896
 897                 if (! port->interrupt_in_urb)
 898                         continue;
 899                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 900                 if (err)
 901                         dbg("%s: submit irq_in urb failed %d",
 902                                 __func__, err);
 903         }
 904
 905         option_setup_urbs(serial);
 906
 907         return (0);
 908
 909 bail_out_error2:
 910         for (j = 0; j < N_OUT_URB; j++)
 911                 kfree(portdata->out_buffer[j]);
 912 bail_out_error:
 913         for (j = 0; j < N_IN_URB; j++)
 914                 if (portdata->in_buffer[j])
 915                         free_page((unsigned long)portdata->in_buffer[j]);
 916         kfree(portdata);
 917         return 1;
 918 }
 919
 920 static void option_shutdown(struct usb_serial *serial)
 921 {
 922         int i, j;
 923         struct usb_serial_port *port;
 924         struct option_port_private *portdata;
 925
 926         dbg("%s", __func__);
 927
 928         /* Stop reading/writing urbs */
 929         for (i = 0; i < serial->num_ports; ++i) {
 930                 port = serial->port[i];
 931                 portdata = usb_get_serial_port_data(port);
 932                 for (j = 0; j < N_IN_URB; j++)
 933                         usb_kill_urb(portdata->in_urbs[j]);
 934                 for (j = 0; j < N_OUT_URB; j++)
 935                         usb_kill_urb(portdata->out_urbs[j]);
 936         }
 937
 938         /* Now free them */
 939         for (i = 0; i < serial->num_ports; ++i) {
 940                 port = serial->port[i];
 941                 portdata = usb_get_serial_port_data(port);
 942
 943                 for (j = 0; j < N_IN_URB; j++) {
 944                         if (portdata->in_urbs[j]) {
 945                                 usb_free_urb(portdata->in_urbs[j]);
 946                                 free_page((unsigned long)portdata->in_buffer[j]);
 947                                 portdata->in_urbs[j] = NULL;
 948                         }
 949                 }
 950                 for (j = 0; j < N_OUT_URB; j++) {
 951                         if (portdata->out_urbs[j]) {
 952                                 usb_free_urb(portdata->out_urbs[j]);
 953                                 kfree(portdata->out_buffer[j]);
 954                                 portdata->out_urbs[j] = NULL;
 955                         }
 956                 }
 957         }
 958
 959         /* Now free per port private data */
 960         for (i = 0; i < serial->num_ports; i++) {
 961                 port = serial->port[i];
 962                 kfree(usb_get_serial_port_data(port));
 963         }
 964 }
 965
 966 MODULE_AUTHOR(DRIVER_AUTHOR);
 967 MODULE_DESCRIPTION(DRIVER_DESC);
 968 MODULE_VERSION(DRIVER_VERSION);
 969 MODULE_LICENSE("GPL");
 970
 971 #ifdef CONFIG_USB_DEBUG
 972 module_param(debug, bool, S_IRUGO | S_IWUSR);
 973 MODULE_PARM_DESC(debug, "Debug messages");
 974 #endif
 975