SAFE public projects git trees. - safe/jmp/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         /* FIXME: what locks portdata fields ? */
 462         if (set & TIOCM_RTS)
 463                 portdata->rts_state = 1;
 464         if (set & TIOCM_DTR)
 465                 portdata->dtr_state = 1;
 466
 467         if (clear & TIOCM_RTS)
 468                 portdata->rts_state = 0;
 469         if (clear & TIOCM_DTR)
 470                 portdata->dtr_state = 0;
 471         return option_send_setup(port);
 472 }
 473
 474 static int option_ioctl(struct usb_serial_port *port, struct file *file,
 475                         unsigned int cmd, unsigned long arg)
 476 {
 477         return -ENOIOCTLCMD;
 478 }
 479
 480 /* Write */
 481 static int option_write(struct usb_serial_port *port,
 482                         const unsigned char *buf, int count)
 483 {
 484         struct option_port_private *portdata;
 485         int i;
 486         int left, todo;
 487         struct urb *this_urb = NULL; /* spurious */
 488         int err;
 489
 490         portdata = usb_get_serial_port_data(port);
 491
 492         dbg("%s: write (%d chars)", __FUNCTION__, count);
 493
 494         i = 0;
 495         left = count;
 496         for (i=0; left > 0 && i < N_OUT_URB; i++) {
 497                 todo = left;
 498                 if (todo > OUT_BUFLEN)
 499                         todo = OUT_BUFLEN;
 500
 501                 this_urb = portdata->out_urbs[i];
 502                 if (test_and_set_bit(i, &portdata->out_busy)) {
 503                         if (time_before(jiffies,
 504                                         portdata->tx_start_time[i] + 10 * HZ))
 505                                 continue;
 506                         usb_unlink_urb(this_urb);
 507                         continue;
 508                 }
 509                 if (this_urb->status != 0)
 510                         dbg("usb_write %p failed (err=%d)",
 511                                 this_urb, this_urb->status);
 512
 513                 dbg("%s: endpoint %d buf %d", __FUNCTION__,
 514                         usb_pipeendpoint(this_urb->pipe), i);
 515
 516                 /* send the data */
 517                 memcpy (this_urb->transfer_buffer, buf, todo);
 518                 this_urb->transfer_buffer_length = todo;
 519
 520                 this_urb->dev = port->serial->dev;
 521                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 522                 if (err) {
 523                         dbg("usb_submit_urb %p (write bulk) failed "
 524                                 "(%d, has %d)", this_urb,
 525                                 err, this_urb->status);
 526                         clear_bit(i, &portdata->out_busy);
 527                         continue;
 528                 }
 529                 portdata->tx_start_time[i] = jiffies;
 530                 buf += todo;
 531                 left -= todo;
 532         }
 533
 534         count -= left;
 535         dbg("%s: wrote (did %d)", __FUNCTION__, count);
 536         return count;
 537 }
 538
 539 static void option_indat_callback(struct urb *urb)
 540 {
 541         int err;
 542         int endpoint;
 543         struct usb_serial_port *port;
 544         struct tty_struct *tty;
 545         unsigned char *data = urb->transfer_buffer;
 546         int status = urb->status;
 547
 548         dbg("%s: %p", __FUNCTION__, urb);
 549
 550         endpoint = usb_pipeendpoint(urb->pipe);
 551         port = (struct usb_serial_port *) urb->context;
 552
 553         if (status) {
 554                 dbg("%s: nonzero status: %d on endpoint %02x.",
 555                     __FUNCTION__, status, endpoint);
 556         } else {
 557                 tty = port->tty;
 558                 if (urb->actual_length) {
 559                         tty_buffer_request_room(tty, urb->actual_length);
 560                         tty_insert_flip_string(tty, data, urb->actual_length);
 561                         tty_flip_buffer_push(tty);
 562                 } else {
 563                         dbg("%s: empty read urb received", __FUNCTION__);
 564                 }
 565
 566                 /* Resubmit urb so we continue receiving */
 567                 if (port->open_count && status != -ESHUTDOWN) {
 568                         err = usb_submit_urb(urb, GFP_ATOMIC);
 569                         if (err)
 570                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 571                                         "(%d)", __FUNCTION__, err);
 572                 }
 573         }
 574         return;
 575 }
 576
 577 static void option_outdat_callback(struct urb *urb)
 578 {
 579         struct usb_serial_port *port;
 580         struct option_port_private *portdata;
 581         int i;
 582
 583         dbg("%s", __FUNCTION__);
 584
 585         port = (struct usb_serial_port *) urb->context;
 586
 587         usb_serial_port_softint(port);
 588
 589         portdata = usb_get_serial_port_data(port);
 590         for (i = 0; i < N_OUT_URB; ++i) {
 591                 if (portdata->out_urbs[i] == urb) {
 592                         smp_mb__before_clear_bit();
 593                         clear_bit(i, &portdata->out_busy);
 594                         break;
 595                 }
 596         }
 597 }
 598
 599 static void option_instat_callback(struct urb *urb)
 600 {
 601         int err;
 602         int status = urb->status;
 603         struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
 604         struct option_port_private *portdata = usb_get_serial_port_data(port);
 605         struct usb_serial *serial = port->serial;
 606
 607         dbg("%s", __FUNCTION__);
 608         dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata);
 609
 610         if (status == 0) {
 611                 struct usb_ctrlrequest *req_pkt =
 612                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 613
 614                 if (!req_pkt) {
 615                         dbg("%s: NULL req_pkt\n", __FUNCTION__);
 616                         return;
 617                 }
 618                 if ((req_pkt->bRequestType == 0xA1) &&
 619                                 (req_pkt->bRequest == 0x20)) {
 620                         int old_dcd_state;
 621                         unsigned char signals = *((unsigned char *)
 622                                         urb->transfer_buffer +
 623                                         sizeof(struct usb_ctrlrequest));
 624
 625                         dbg("%s: signal x%x", __FUNCTION__, signals);
 626
 627                         old_dcd_state = portdata->dcd_state;
 628                         portdata->cts_state = 1;
 629                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 630                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 631                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 632
 633                         if (port->tty && !C_CLOCAL(port->tty) &&
 634                                         old_dcd_state && !portdata->dcd_state)
 635                                 tty_hangup(port->tty);
 636                 } else {
 637                         dbg("%s: type %x req %x", __FUNCTION__,
 638                                 req_pkt->bRequestType,req_pkt->bRequest);
 639                 }
 640         } else
 641                 dbg("%s: error %d", __FUNCTION__, status);
 642
 643         /* Resubmit urb so we continue receiving IRQ data */
 644         if (status != -ESHUTDOWN) {
 645                 urb->dev = serial->dev;
 646                 err = usb_submit_urb(urb, GFP_ATOMIC);
 647                 if (err)
 648                         dbg("%s: resubmit intr urb failed. (%d)",
 649                                 __FUNCTION__, err);
 650         }
 651 }
 652
 653 static int option_write_room(struct usb_serial_port *port)
 654 {
 655         struct option_port_private *portdata;
 656         int i;
 657         int data_len = 0;
 658         struct urb *this_urb;
 659
 660         portdata = usb_get_serial_port_data(port);
 661
 662         for (i=0; i < N_OUT_URB; i++) {
 663                 this_urb = portdata->out_urbs[i];
 664                 if (this_urb && !test_bit(i, &portdata->out_busy))
 665                         data_len += OUT_BUFLEN;
 666         }
 667
 668         dbg("%s: %d", __FUNCTION__, data_len);
 669         return data_len;
 670 }
 671
 672 static int option_chars_in_buffer(struct usb_serial_port *port)
 673 {
 674         struct option_port_private *portdata;
 675         int i;
 676         int data_len = 0;
 677         struct urb *this_urb;
 678
 679         portdata = usb_get_serial_port_data(port);
 680
 681         for (i=0; i < N_OUT_URB; i++) {
 682                 this_urb = portdata->out_urbs[i];
 683                 if (this_urb && test_bit(i, &portdata->out_busy))
 684                         data_len += this_urb->transfer_buffer_length;
 685         }
 686         dbg("%s: %d", __FUNCTION__, 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", __FUNCTION__);
 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", __FUNCTION__,
 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                                 __FUNCTION__, 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", __FUNCTION__);
 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.", __FUNCTION__, 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", __FUNCTION__);
 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 static int option_send_setup(struct usb_serial_port *port)
 828 {
 829         struct usb_serial *serial = port->serial;
 830         struct option_port_private *portdata;
 831
 832         dbg("%s", __FUNCTION__);
 833
 834         if (port->number != 0)
 835                 return 0;
 836
 837         portdata = usb_get_serial_port_data(port);
 838
 839         if (port->tty) {
 840                 int val = 0;
 841                 if (portdata->dtr_state)
 842                         val |= 0x01;
 843                 if (portdata->rts_state)
 844                         val |= 0x02;
 845
 846                 return usb_control_msg(serial->dev,
 847                                 usb_rcvctrlpipe(serial->dev, 0),
 848                                 0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT);
 849         }
 850
 851         return 0;
 852 }
 853
 854 static int option_startup(struct usb_serial *serial)
 855 {
 856         int i, j, err;
 857         struct usb_serial_port *port;
 858         struct option_port_private *portdata;
 859         u8 *buffer;
 860
 861         dbg("%s", __FUNCTION__);
 862
 863         /* Now setup per port private data */
 864         for (i = 0; i < serial->num_ports; i++) {
 865                 port = serial->port[i];
 866                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
 867                 if (!portdata) {
 868                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
 869                                         __FUNCTION__, i);
 870                         return (1);
 871                 }
 872
 873                 for (j = 0; j < N_IN_URB; j++) {
 874                         buffer = (u8 *)__get_free_page(GFP_KERNEL);
 875                         if (!buffer)
 876                                 goto bail_out_error;
 877                         portdata->in_buffer[j] = buffer;
 878                 }
 879
 880                 for (j = 0; j < N_OUT_URB; j++) {
 881                         buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
 882                         if (!buffer)
 883                                 goto bail_out_error2;
 884                         portdata->out_buffer[j] = buffer;
 885                 }
 886
 887                 usb_set_serial_port_data(port, portdata);
 888
 889                 if (! port->interrupt_in_urb)
 890                         continue;
 891                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 892                 if (err)
 893                         dbg("%s: submit irq_in urb failed %d",
 894                                 __FUNCTION__, err);
 895         }
 896
 897         option_setup_urbs(serial);
 898
 899         return (0);
 900
 901 bail_out_error2:
 902         for (j = 0; j < N_OUT_URB; j++)
 903                 kfree(portdata->out_buffer[j]);
 904 bail_out_error:
 905         for (j = 0; j < N_IN_URB; j++)
 906                 if (portdata->in_buffer[j])
 907                         free_page((unsigned long)portdata->in_buffer[j]);
 908         kfree(portdata);
 909         return 1;
 910 }
 911
 912 static void option_shutdown(struct usb_serial *serial)
 913 {
 914         int i, j;
 915         struct usb_serial_port *port;
 916         struct option_port_private *portdata;
 917
 918         dbg("%s", __FUNCTION__);
 919
 920         /* Stop reading/writing urbs */
 921         for (i = 0; i < serial->num_ports; ++i) {
 922                 port = serial->port[i];
 923                 portdata = usb_get_serial_port_data(port);
 924                 for (j = 0; j < N_IN_URB; j++)
 925                         usb_kill_urb(portdata->in_urbs[j]);
 926                 for (j = 0; j < N_OUT_URB; j++)
 927                         usb_kill_urb(portdata->out_urbs[j]);
 928         }
 929
 930         /* Now free them */
 931         for (i = 0; i < serial->num_ports; ++i) {
 932                 port = serial->port[i];
 933                 portdata = usb_get_serial_port_data(port);
 934
 935                 for (j = 0; j < N_IN_URB; j++) {
 936                         if (portdata->in_urbs[j]) {
 937                                 usb_free_urb(portdata->in_urbs[j]);
 938                                 free_page((unsigned long)portdata->in_buffer[j]);
 939                                 portdata->in_urbs[j] = NULL;
 940                         }
 941                 }
 942                 for (j = 0; j < N_OUT_URB; j++) {
 943                         if (portdata->out_urbs[j]) {
 944                                 usb_free_urb(portdata->out_urbs[j]);
 945                                 kfree(portdata->out_buffer[j]);
 946                                 portdata->out_urbs[j] = NULL;
 947                         }
 948                 }
 949         }
 950
 951         /* Now free per port private data */
 952         for (i = 0; i < serial->num_ports; i++) {
 953                 port = serial->port[i];
 954                 kfree(usb_get_serial_port_data(port));
 955         }
 956 }
 957
 958 MODULE_AUTHOR(DRIVER_AUTHOR);
 959 MODULE_DESCRIPTION(DRIVER_DESC);
 960 MODULE_VERSION(DRIVER_VERSION);
 961 MODULE_LICENSE("GPL");
 962
 963 #ifdef CONFIG_USB_DEBUG
 964 module_param(debug, bool, S_IRUGO | S_IWUSR);
 965 MODULE_PARM_DESC(debug, "Debug messages");
 966 #endif
 967