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 tty_struct *tty, struct usb_serial_port *port,
  47                                                         struct file *filp);
  48 static void option_close(struct tty_struct *tty, struct usb_serial_port *port,
  49                                                         struct file *filp);
  50 static int  option_startup(struct usb_serial *serial);
  51 static void option_shutdown(struct usb_serial *serial);
  52 static int  option_write_room(struct tty_struct *tty);
  53
  54 static void option_instat_callback(struct urb *urb);
  55
  56 static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
  57                         const unsigned char *buf, int count);
  58 static int  option_chars_in_buffer(struct tty_struct *tty);
  59 static void option_set_termios(struct tty_struct *tty,
  60                         struct usb_serial_port *port, struct ktermios *old);
  61 static int  option_tiocmget(struct tty_struct *tty, struct file *file);
  62 static int  option_tiocmset(struct tty_struct *tty, struct file *file,
  63                                 unsigned int set, unsigned int clear);
  64 static int  option_send_setup(struct tty_struct *tty, struct usb_serial_port *port);
  65
  66 /* Vendor and product IDs */
  67 #define OPTION_VENDOR_ID                        0x0AF0
  68 #define OPTION_PRODUCT_COLT                     0x5000
  69 #define OPTION_PRODUCT_RICOLA                   0x6000
  70 #define OPTION_PRODUCT_RICOLA_LIGHT             0x6100
  71 #define OPTION_PRODUCT_RICOLA_QUAD              0x6200
  72 #define OPTION_PRODUCT_RICOLA_QUAD_LIGHT        0x6300
  73 #define OPTION_PRODUCT_RICOLA_NDIS              0x6050
  74 #define OPTION_PRODUCT_RICOLA_NDIS_LIGHT        0x6150
  75 #define OPTION_PRODUCT_RICOLA_NDIS_QUAD         0x6250
  76 #define OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT   0x6350
  77 #define OPTION_PRODUCT_COBRA                    0x6500
  78 #define OPTION_PRODUCT_COBRA_BUS                0x6501
  79 #define OPTION_PRODUCT_VIPER                    0x6600
  80 #define OPTION_PRODUCT_VIPER_BUS                0x6601
  81 #define OPTION_PRODUCT_GT_MAX_READY             0x6701
  82 #define OPTION_PRODUCT_FUJI_MODEM_LIGHT         0x6721
  83 #define OPTION_PRODUCT_FUJI_MODEM_GT            0x6741
  84 #define OPTION_PRODUCT_FUJI_MODEM_EX            0x6761
  85 #define OPTION_PRODUCT_KOI_MODEM                0x6800
  86 #define OPTION_PRODUCT_SCORPION_MODEM           0x6901
  87 #define OPTION_PRODUCT_ETNA_MODEM               0x7001
  88 #define OPTION_PRODUCT_ETNA_MODEM_LITE          0x7021
  89 #define OPTION_PRODUCT_ETNA_MODEM_GT            0x7041
  90 #define OPTION_PRODUCT_ETNA_MODEM_EX            0x7061
  91 #define OPTION_PRODUCT_ETNA_KOI_MODEM           0x7100
  92
  93 #define HUAWEI_VENDOR_ID                        0x12D1
  94 #define HUAWEI_PRODUCT_E600                     0x1001
  95 #define HUAWEI_PRODUCT_E220                     0x1003
  96 #define HUAWEI_PRODUCT_E220BIS                  0x1004
  97 #define HUAWEI_PRODUCT_E1401                    0x1401
  98 #define HUAWEI_PRODUCT_E1403                    0x1403
  99 #define HUAWEI_PRODUCT_E1405                    0x1405
 100 #define HUAWEI_PRODUCT_E1406                    0x1406
 101 #define HUAWEI_PRODUCT_E1408                    0x1408
 102 #define HUAWEI_PRODUCT_E1409                    0x1409
 103 #define HUAWEI_PRODUCT_E1410                    0x1410
 104 #define HUAWEI_PRODUCT_E1411                    0x1411
 105 #define HUAWEI_PRODUCT_E1412                    0x1412
 106 #define HUAWEI_PRODUCT_E1413                    0x1413
 107 #define HUAWEI_PRODUCT_E1414                    0x1414
 108 #define HUAWEI_PRODUCT_E1415                    0x1415
 109 #define HUAWEI_PRODUCT_E1416                    0x1416
 110 #define HUAWEI_PRODUCT_E1417                    0x1417
 111 #define HUAWEI_PRODUCT_E1418                    0x1418
 112 #define HUAWEI_PRODUCT_E1419                    0x1419
 113
 114 #define NOVATELWIRELESS_VENDOR_ID               0x1410
 115
 116 /* MERLIN EVDO PRODUCTS */
 117 #define NOVATELWIRELESS_PRODUCT_V640            0x1100
 118 #define NOVATELWIRELESS_PRODUCT_V620            0x1110
 119 #define NOVATELWIRELESS_PRODUCT_V740            0x1120
 120 #define NOVATELWIRELESS_PRODUCT_V720            0x1130
 121
 122 /* MERLIN HSDPA/HSPA PRODUCTS */
 123 #define NOVATELWIRELESS_PRODUCT_U730            0x1400
 124 #define NOVATELWIRELESS_PRODUCT_U740            0x1410
 125 #define NOVATELWIRELESS_PRODUCT_U870            0x1420
 126 #define NOVATELWIRELESS_PRODUCT_XU870           0x1430
 127 #define NOVATELWIRELESS_PRODUCT_X950D           0x1450
 128
 129 /* EXPEDITE PRODUCTS */
 130 #define NOVATELWIRELESS_PRODUCT_EV620           0x2100
 131 #define NOVATELWIRELESS_PRODUCT_ES720           0x2110
 132 #define NOVATELWIRELESS_PRODUCT_E725            0x2120
 133 #define NOVATELWIRELESS_PRODUCT_ES620           0x2130
 134 #define NOVATELWIRELESS_PRODUCT_EU730           0x2400
 135 #define NOVATELWIRELESS_PRODUCT_EU740           0x2410
 136 #define NOVATELWIRELESS_PRODUCT_EU870D          0x2420
 137
 138 /* OVATION PRODUCTS */
 139 #define NOVATELWIRELESS_PRODUCT_MC727           0x4100
 140 #define NOVATELWIRELESS_PRODUCT_MC950D          0x4400
 141
 142 /* FUTURE NOVATEL PRODUCTS */
 143 #define NOVATELWIRELESS_PRODUCT_EVDO_1          0x6000
 144 #define NOVATELWIRELESS_PRODUCT_HSPA_1          0x7000
 145 #define NOVATELWIRELESS_PRODUCT_EMBEDDED_1      0x8000
 146 #define NOVATELWIRELESS_PRODUCT_GLOBAL_1        0x9000
 147 #define NOVATELWIRELESS_PRODUCT_EVDO_2          0x6001
 148 #define NOVATELWIRELESS_PRODUCT_HSPA_2          0x7001
 149 #define NOVATELWIRELESS_PRODUCT_EMBEDDED_2      0x8001
 150 #define NOVATELWIRELESS_PRODUCT_GLOBAL_2        0x9001
 151
 152 /* AMOI PRODUCTS */
 153 #define AMOI_VENDOR_ID                          0x1614
 154 #define AMOI_PRODUCT_H01                        0x0800
 155 #define AMOI_PRODUCT_H01A                       0x7002
 156 #define AMOI_PRODUCT_H02                        0x0802
 157
 158 #define DELL_VENDOR_ID                          0x413C
 159
 160 #define KYOCERA_VENDOR_ID                       0x0c88
 161 #define KYOCERA_PRODUCT_KPC650                  0x17da
 162 #define KYOCERA_PRODUCT_KPC680                  0x180a
 163
 164 #define ANYDATA_VENDOR_ID                       0x16d5
 165 #define ANYDATA_PRODUCT_ADU_620UW               0x6202
 166 #define ANYDATA_PRODUCT_ADU_E100A               0x6501
 167 #define ANYDATA_PRODUCT_ADU_500A                0x6502
 168
 169 #define AXESSTEL_VENDOR_ID                      0x1726
 170 #define AXESSTEL_PRODUCT_MV110H                 0x1000
 171
 172 #define ONDA_VENDOR_ID                          0x19d2
 173 #define ONDA_PRODUCT_MSA501HS                   0x0001
 174 #define ONDA_PRODUCT_ET502HS                    0x0002
 175
 176 #define BANDRICH_VENDOR_ID                      0x1A8D
 177 #define BANDRICH_PRODUCT_C100_1                 0x1002
 178 #define BANDRICH_PRODUCT_C100_2                 0x1003
 179 #define BANDRICH_PRODUCT_1004                   0x1004
 180 #define BANDRICH_PRODUCT_1005                   0x1005
 181 #define BANDRICH_PRODUCT_1006                   0x1006
 182 #define BANDRICH_PRODUCT_1007                   0x1007
 183 #define BANDRICH_PRODUCT_1008                   0x1008
 184 #define BANDRICH_PRODUCT_1009                   0x1009
 185 #define BANDRICH_PRODUCT_100A                   0x100a
 186
 187 #define BANDRICH_PRODUCT_100B                   0x100b
 188 #define BANDRICH_PRODUCT_100C                   0x100c
 189 #define BANDRICH_PRODUCT_100D                   0x100d
 190 #define BANDRICH_PRODUCT_100E                   0x100e
 191
 192 #define BANDRICH_PRODUCT_100F                   0x100f
 193 #define BANDRICH_PRODUCT_1010                   0x1010
 194 #define BANDRICH_PRODUCT_1011                   0x1011
 195 #define BANDRICH_PRODUCT_1012                   0x1012
 196
 197 #define AMOI_VENDOR_ID                  0x1614
 198 #define AMOI_PRODUCT_9508                       0x0800
 199
 200 #define QUALCOMM_VENDOR_ID                      0x05C6
 201
 202 #define MAXON_VENDOR_ID                         0x16d8
 203
 204 #define TELIT_VENDOR_ID                         0x1bc7
 205 #define TELIT_PRODUCT_UC864E                    0x1003
 206
 207 /* ZTE PRODUCTS */
 208 #define ZTE_VENDOR_ID                           0x19d2
 209 #define ZTE_PRODUCT_MF628                       0x0015
 210 #define ZTE_PRODUCT_CDMA_TECH                   0xfffe
 211
 212 /* Ericsson products */
 213 #define ERICSSON_VENDOR_ID                      0x0bdb
 214 #define ERICSSON_PRODUCT_F3507G                 0x1900
 215
 216 /* Pantech products */
 217 #define PANTECH_VENDOR_ID                       0x106c
 218 #define PANTECH_PRODUCT_PC5740                  0x3701
 219 #define PANTECH_PRODUCT_PC5750                  0x3702  /* PX-500 */
 220 #define PANTECH_PRODUCT_UM150                   0x3711
 221
 222 static struct usb_device_id option_ids[] = {
 223         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
 224         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
 225         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
 226         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD) },
 227         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD_LIGHT) },
 228         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS) },
 229         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_LIGHT) },
 230         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD) },
 231         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT) },
 232         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
 233         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA_BUS) },
 234         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER) },
 235         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER_BUS) },
 236         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX_READY) },
 237         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_LIGHT) },
 238         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_GT) },
 239         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_EX) },
 240         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_MODEM) },
 241         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_MODEM) },
 242         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM) },
 243         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_LITE) },
 244         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) },
 245         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) },
 246         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) },
 247         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600, 0xff, 0xff, 0xff) },
 248         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220, 0xff, 0xff, 0xff) },
 249         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS, 0xff, 0xff, 0xff) },
 250         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1401, 0xff, 0xff, 0xff) },
 251         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1403, 0xff, 0xff, 0xff) },
 252         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1405, 0xff, 0xff, 0xff) },
 253         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1406, 0xff, 0xff, 0xff) },
 254         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1408, 0xff, 0xff, 0xff) },
 255         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1409, 0xff, 0xff, 0xff) },
 256         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1410, 0xff, 0xff, 0xff) },
 257         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1411, 0xff, 0xff, 0xff) },
 258         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1412, 0xff, 0xff, 0xff) },
 259         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1413, 0xff, 0xff, 0xff) },
 260         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1414, 0xff, 0xff, 0xff) },
 261         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1415, 0xff, 0xff, 0xff) },
 262         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1416, 0xff, 0xff, 0xff) },
 263         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1417, 0xff, 0xff, 0xff) },
 264         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1418, 0xff, 0xff, 0xff) },
 265         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1419, 0xff, 0xff, 0xff) },
 266         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_9508) },
 267         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */
 268         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */
 269         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) }, /* Novatel Merlin EX720/V740/X720 */
 270         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V720) }, /* Novatel Merlin V720/S720/PC720 */
 271         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U730) }, /* Novatel U730/U740 (VF version) */
 272         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U740) }, /* Novatel U740 */
 273         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U870) }, /* Novatel U870 */
 274         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_XU870) }, /* Novatel Merlin XU870 HSDPA/3G */
 275         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_X950D) }, /* Novatel X950D */
 276         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EV620) }, /* Novatel EV620/ES620 CDMA/EV-DO */
 277         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES720) }, /* Novatel ES620/ES720/U720/USB720 */
 278         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E725) }, /* Novatel E725/E726 */
 279         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES620) }, /* Novatel Merlin ES620 SM Bus */
 280         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU730) }, /* Novatel EU730 and Vodafone EU740 */
 281         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU740) }, /* Novatel non-Vodafone EU740 */
 282         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) }, /* Novatel EU850D/EU860D/EU870D */
 283         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) }, /* Novatel MC930D/MC950D */
 284         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) }, /* Novatel MC727/U727/USB727 */
 285         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_1) }, /* Novatel EVDO product */
 286         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_1) }, /* Novatel HSPA product */
 287         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_1) }, /* Novatel Embedded product */
 288         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_1) }, /* Novatel Global product */
 289         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_2) }, /* Novatel EVDO product */
 290         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_2) }, /* Novatel HSPA product */
 291         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_2) }, /* Novatel Embedded product */
 292         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_2) }, /* Novatel Global product */
 293
 294         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01) },
 295         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01A) },
 296         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H02) },
 297
 298         { USB_DEVICE(DELL_VENDOR_ID, 0x8114) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */
 299         { USB_DEVICE(DELL_VENDOR_ID, 0x8115) }, /* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 300         { USB_DEVICE(DELL_VENDOR_ID, 0x8116) }, /* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 301         { USB_DEVICE(DELL_VENDOR_ID, 0x8117) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO ExpressCard == Novatel Merlin XV620 CDMA/EV-DO */
 302         { USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard == Novatel Merlin XU870 HSDPA/3G */
 303         { USB_DEVICE(DELL_VENDOR_ID, 0x8128) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite E720 CDMA/EV-DO */
 304         { USB_DEVICE(DELL_VENDOR_ID, 0x8129) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite ET620 CDMA/EV-DO */
 305         { USB_DEVICE(DELL_VENDOR_ID, 0x8133) }, /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
 306         { USB_DEVICE(DELL_VENDOR_ID, 0x8136) }, /* Dell Wireless HSDPA 5520 == Novatel Expedite EU860D */
 307         { USB_DEVICE(DELL_VENDOR_ID, 0x8137) }, /* Dell Wireless HSDPA 5520 */
 308         { USB_DEVICE(DELL_VENDOR_ID, 0x8138) }, /* Dell Wireless 5520 Voda I Mobile Broadband (3G HSDPA) Minicard */
 309         { USB_DEVICE(DELL_VENDOR_ID, 0x8147) }, /* Dell Wireless 5530 Mobile Broadband (3G HSPA) Mini-Card */
 310         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },   /* ADU-E100, ADU-310 */
 311         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
 312         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
 313         { USB_DEVICE(AXESSTEL_VENDOR_ID, AXESSTEL_PRODUCT_MV110H) },
 314         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_MSA501HS) },
 315         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_ET502HS) },
 316         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
 317         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
 318         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1004) },
 319         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1005) },
 320         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1006) },
 321         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1007) },
 322         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1008) },
 323         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1009) },
 324         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100A) },
 325         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100B) },
 326         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100C) },
 327         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100D) },
 328         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100E) },
 329         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100F) },
 330         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1010) },
 331         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1011) },
 332         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1012) },
 333         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC650) },
 334         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
 335         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */
 336         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
 337         { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */
 338         { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864E) },
 339         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF628) },
 340         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH) },
 341         { USB_DEVICE(ERICSSON_VENDOR_ID, ERICSSON_PRODUCT_F3507G) },
 342         { USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_PC5740) },
 343         { USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_PC5750) },
 344         { USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_UM150) },
 345         { } /* Terminating entry */
 346 };
 347 MODULE_DEVICE_TABLE(usb, option_ids);
 348
 349 static struct usb_driver option_driver = {
 350         .name       = "option",
 351         .probe      = usb_serial_probe,
 352         .disconnect = usb_serial_disconnect,
 353         .id_table   = option_ids,
 354         .no_dynamic_id =        1,
 355 };
 356
 357 /* The card has three separate interfaces, which the serial driver
 358  * recognizes separately, thus num_port=1.
 359  */
 360
 361 static struct usb_serial_driver option_1port_device = {
 362         .driver = {
 363                 .owner =        THIS_MODULE,
 364                 .name =         "option1",
 365         },
 366         .description       = "GSM modem (1-port)",
 367         .usb_driver        = &option_driver,
 368         .id_table          = option_ids,
 369         .num_ports         = 1,
 370         .open              = option_open,
 371         .close             = option_close,
 372         .write             = option_write,
 373         .write_room        = option_write_room,
 374         .chars_in_buffer   = option_chars_in_buffer,
 375         .set_termios       = option_set_termios,
 376         .tiocmget          = option_tiocmget,
 377         .tiocmset          = option_tiocmset,
 378         .attach            = option_startup,
 379         .shutdown          = option_shutdown,
 380         .read_int_callback = option_instat_callback,
 381 };
 382
 383 static int debug;
 384
 385 /* per port private data */
 386
 387 #define N_IN_URB 4
 388 #define N_OUT_URB 1
 389 #define IN_BUFLEN 4096
 390 #define OUT_BUFLEN 128
 391
 392 struct option_port_private {
 393         /* Input endpoints and buffer for this port */
 394         struct urb *in_urbs[N_IN_URB];
 395         u8 *in_buffer[N_IN_URB];
 396         /* Output endpoints and buffer for this port */
 397         struct urb *out_urbs[N_OUT_URB];
 398         u8 *out_buffer[N_OUT_URB];
 399         unsigned long out_busy;         /* Bit vector of URBs in use */
 400
 401         /* Settings for the port */
 402         int rts_state;  /* Handshaking pins (outputs) */
 403         int dtr_state;
 404         int cts_state;  /* Handshaking pins (inputs) */
 405         int dsr_state;
 406         int dcd_state;
 407         int ri_state;
 408
 409         unsigned long tx_start_time[N_OUT_URB];
 410 };
 411
 412 /* Functions used by new usb-serial code. */
 413 static int __init option_init(void)
 414 {
 415         int retval;
 416         retval = usb_serial_register(&option_1port_device);
 417         if (retval)
 418                 goto failed_1port_device_register;
 419         retval = usb_register(&option_driver);
 420         if (retval)
 421                 goto failed_driver_register;
 422
 423         info(DRIVER_DESC ": " DRIVER_VERSION);
 424
 425         return 0;
 426
 427 failed_driver_register:
 428         usb_serial_deregister(&option_1port_device);
 429 failed_1port_device_register:
 430         return retval;
 431 }
 432
 433 static void __exit option_exit(void)
 434 {
 435         usb_deregister(&option_driver);
 436         usb_serial_deregister(&option_1port_device);
 437 }
 438
 439 module_init(option_init);
 440 module_exit(option_exit);
 441
 442 static void option_set_termios(struct tty_struct *tty,
 443                 struct usb_serial_port *port, struct ktermios *old_termios)
 444 {
 445         dbg("%s", __func__);
 446         /* Doesn't support option setting */
 447         tty_termios_copy_hw(tty->termios, old_termios);
 448         option_send_setup(tty, port);
 449 }
 450
 451 static int option_tiocmget(struct tty_struct *tty, struct file *file)
 452 {
 453         struct usb_serial_port *port = tty->driver_data;
 454         unsigned int value;
 455         struct option_port_private *portdata;
 456
 457         portdata = usb_get_serial_port_data(port);
 458
 459         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
 460                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
 461                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
 462                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
 463                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
 464                 ((portdata->ri_state) ? TIOCM_RNG : 0);
 465
 466         return value;
 467 }
 468
 469 static int option_tiocmset(struct tty_struct *tty, struct file *file,
 470                         unsigned int set, unsigned int clear)
 471 {
 472         struct usb_serial_port *port = tty->driver_data;
 473         struct option_port_private *portdata;
 474
 475         portdata = usb_get_serial_port_data(port);
 476
 477         /* FIXME: what locks portdata fields ? */
 478         if (set & TIOCM_RTS)
 479                 portdata->rts_state = 1;
 480         if (set & TIOCM_DTR)
 481                 portdata->dtr_state = 1;
 482
 483         if (clear & TIOCM_RTS)
 484                 portdata->rts_state = 0;
 485         if (clear & TIOCM_DTR)
 486                 portdata->dtr_state = 0;
 487         return option_send_setup(tty, port);
 488 }
 489
 490 /* Write */
 491 static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
 492                         const unsigned char *buf, int count)
 493 {
 494         struct option_port_private *portdata;
 495         int i;
 496         int left, todo;
 497         struct urb *this_urb = NULL; /* spurious */
 498         int err;
 499
 500         portdata = usb_get_serial_port_data(port);
 501
 502         dbg("%s: write (%d chars)", __func__, count);
 503
 504         i = 0;
 505         left = count;
 506         for (i = 0; left > 0 && i < N_OUT_URB; i++) {
 507                 todo = left;
 508                 if (todo > OUT_BUFLEN)
 509                         todo = OUT_BUFLEN;
 510
 511                 this_urb = portdata->out_urbs[i];
 512                 if (test_and_set_bit(i, &portdata->out_busy)) {
 513                         if (time_before(jiffies,
 514                                         portdata->tx_start_time[i] + 10 * HZ))
 515                                 continue;
 516                         usb_unlink_urb(this_urb);
 517                         continue;
 518                 }
 519                 if (this_urb->status != 0)
 520                         dbg("usb_write %p failed (err=%d)",
 521                                 this_urb, this_urb->status);
 522
 523                 dbg("%s: endpoint %d buf %d", __func__,
 524                         usb_pipeendpoint(this_urb->pipe), i);
 525
 526                 /* send the data */
 527                 memcpy(this_urb->transfer_buffer, buf, todo);
 528                 this_urb->transfer_buffer_length = todo;
 529
 530                 this_urb->dev = port->serial->dev;
 531                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 532                 if (err) {
 533                         dbg("usb_submit_urb %p (write bulk) failed "
 534                                 "(%d, has %d)", this_urb,
 535                                 err, this_urb->status);
 536                         clear_bit(i, &portdata->out_busy);
 537                         continue;
 538                 }
 539                 portdata->tx_start_time[i] = jiffies;
 540                 buf += todo;
 541                 left -= todo;
 542         }
 543
 544         count -= left;
 545         dbg("%s: wrote (did %d)", __func__, count);
 546         return count;
 547 }
 548
 549 static void option_indat_callback(struct urb *urb)
 550 {
 551         int err;
 552         int endpoint;
 553         struct usb_serial_port *port;
 554         struct tty_struct *tty;
 555         unsigned char *data = urb->transfer_buffer;
 556         int status = urb->status;
 557
 558         dbg("%s: %p", __func__, urb);
 559
 560         endpoint = usb_pipeendpoint(urb->pipe);
 561         port =  urb->context;
 562
 563         if (status) {
 564                 dbg("%s: nonzero status: %d on endpoint %02x.",
 565                     __func__, status, endpoint);
 566         } else {
 567                 tty = tty_port_tty_get(&port->port);
 568                 if (urb->actual_length) {
 569                         tty_buffer_request_room(tty, urb->actual_length);
 570                         tty_insert_flip_string(tty, data, urb->actual_length);
 571                         tty_flip_buffer_push(tty);
 572                 } else
 573                         dbg("%s: empty read urb received", __func__);
 574                 tty_kref_put(tty);
 575
 576                 /* Resubmit urb so we continue receiving */
 577                 if (port->port.count && status != -ESHUTDOWN) {
 578                         err = usb_submit_urb(urb, GFP_ATOMIC);
 579                         if (err)
 580                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 581                                         "(%d)", __func__, err);
 582                 }
 583         }
 584         return;
 585 }
 586
 587 static void option_outdat_callback(struct urb *urb)
 588 {
 589         struct usb_serial_port *port;
 590         struct option_port_private *portdata;
 591         int i;
 592
 593         dbg("%s", __func__);
 594
 595         port =  urb->context;
 596
 597         usb_serial_port_softint(port);
 598
 599         portdata = usb_get_serial_port_data(port);
 600         for (i = 0; i < N_OUT_URB; ++i) {
 601                 if (portdata->out_urbs[i] == urb) {
 602                         smp_mb__before_clear_bit();
 603                         clear_bit(i, &portdata->out_busy);
 604                         break;
 605                 }
 606         }
 607 }
 608
 609 static void option_instat_callback(struct urb *urb)
 610 {
 611         int err;
 612         int status = urb->status;
 613         struct usb_serial_port *port =  urb->context;
 614         struct option_port_private *portdata = usb_get_serial_port_data(port);
 615         struct usb_serial *serial = port->serial;
 616
 617         dbg("%s", __func__);
 618         dbg("%s: urb %p port %p has data %p", __func__, urb, port, portdata);
 619
 620         if (status == 0) {
 621                 struct usb_ctrlrequest *req_pkt =
 622                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 623
 624                 if (!req_pkt) {
 625                         dbg("%s: NULL req_pkt\n", __func__);
 626                         return;
 627                 }
 628                 if ((req_pkt->bRequestType == 0xA1) &&
 629                                 (req_pkt->bRequest == 0x20)) {
 630                         int old_dcd_state;
 631                         unsigned char signals = *((unsigned char *)
 632                                         urb->transfer_buffer +
 633                                         sizeof(struct usb_ctrlrequest));
 634
 635                         dbg("%s: signal x%x", __func__, signals);
 636
 637                         old_dcd_state = portdata->dcd_state;
 638                         portdata->cts_state = 1;
 639                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 640                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 641                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 642
 643                         if (old_dcd_state && !portdata->dcd_state) {
 644                                 struct tty_struct *tty =
 645                                                 tty_port_tty_get(&port->port);
 646                                 if (tty && !C_CLOCAL(tty))
 647                                         tty_hangup(tty);
 648                                 tty_kref_put(tty);
 649                         }
 650                 } else {
 651                         dbg("%s: type %x req %x", __func__,
 652                                 req_pkt->bRequestType, req_pkt->bRequest);
 653                 }
 654         } else
 655                 dbg("%s: error %d", __func__, status);
 656
 657         /* Resubmit urb so we continue receiving IRQ data */
 658         if (status != -ESHUTDOWN) {
 659                 urb->dev = serial->dev;
 660                 err = usb_submit_urb(urb, GFP_ATOMIC);
 661                 if (err)
 662                         dbg("%s: resubmit intr urb failed. (%d)",
 663                                 __func__, err);
 664         }
 665 }
 666
 667 static int option_write_room(struct tty_struct *tty)
 668 {
 669         struct usb_serial_port *port = tty->driver_data;
 670         struct option_port_private *portdata;
 671         int i;
 672         int data_len = 0;
 673         struct urb *this_urb;
 674
 675         portdata = usb_get_serial_port_data(port);
 676
 677
 678         for (i = 0; i < N_OUT_URB; i++) {
 679                 this_urb = portdata->out_urbs[i];
 680                 if (this_urb && !test_bit(i, &portdata->out_busy))
 681                         data_len += OUT_BUFLEN;
 682         }
 683
 684         dbg("%s: %d", __func__, data_len);
 685         return data_len;
 686 }
 687
 688 static int option_chars_in_buffer(struct tty_struct *tty)
 689 {
 690         struct usb_serial_port *port = tty->driver_data;
 691         struct option_port_private *portdata;
 692         int i;
 693         int data_len = 0;
 694         struct urb *this_urb;
 695
 696         portdata = usb_get_serial_port_data(port);
 697
 698         for (i = 0; i < N_OUT_URB; i++) {
 699                 this_urb = portdata->out_urbs[i];
 700                 /* FIXME: This locking is insufficient as this_urb may
 701                    go unused during the test */
 702                 if (this_urb && test_bit(i, &portdata->out_busy))
 703                         data_len += this_urb->transfer_buffer_length;
 704         }
 705         dbg("%s: %d", __func__, data_len);
 706         return data_len;
 707 }
 708
 709 static int option_open(struct tty_struct *tty,
 710                         struct usb_serial_port *port, struct file *filp)
 711 {
 712         struct option_port_private *portdata;
 713         struct usb_serial *serial = port->serial;
 714         int i, err;
 715         struct urb *urb;
 716
 717         portdata = usb_get_serial_port_data(port);
 718
 719         dbg("%s", __func__);
 720
 721         /* Set some sane defaults */
 722         portdata->rts_state = 1;
 723         portdata->dtr_state = 1;
 724
 725         /* Reset low level data toggle and start reading from endpoints */
 726         for (i = 0; i < N_IN_URB; i++) {
 727                 urb = portdata->in_urbs[i];
 728                 if (!urb)
 729                         continue;
 730                 if (urb->dev != serial->dev) {
 731                         dbg("%s: dev %p != %p", __func__,
 732                                 urb->dev, serial->dev);
 733                         continue;
 734                 }
 735
 736                 /*
 737                  * make sure endpoint data toggle is synchronized with the
 738                  * device
 739                  */
 740                 usb_clear_halt(urb->dev, urb->pipe);
 741
 742                 err = usb_submit_urb(urb, GFP_KERNEL);
 743                 if (err) {
 744                         dbg("%s: submit urb %d failed (%d) %d",
 745                                 __func__, i, err,
 746                                 urb->transfer_buffer_length);
 747                 }
 748         }
 749
 750         /* Reset low level data toggle on out endpoints */
 751         for (i = 0; i < N_OUT_URB; i++) {
 752                 urb = portdata->out_urbs[i];
 753                 if (!urb)
 754                         continue;
 755                 urb->dev = serial->dev;
 756                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 757                                 usb_pipeout(urb->pipe), 0); */
 758         }
 759
 760         if (tty)
 761                 tty->low_latency = 1;
 762
 763         option_send_setup(tty, port);
 764
 765         return 0;
 766 }
 767
 768 static void option_close(struct tty_struct *tty,
 769                         struct usb_serial_port *port, struct file *filp)
 770 {
 771         int i;
 772         struct usb_serial *serial = port->serial;
 773         struct option_port_private *portdata;
 774
 775         dbg("%s", __func__);
 776         portdata = usb_get_serial_port_data(port);
 777
 778         portdata->rts_state = 0;
 779         portdata->dtr_state = 0;
 780
 781         if (serial->dev) {
 782                 mutex_lock(&serial->disc_mutex);
 783                 if (!serial->disconnected)
 784                         option_send_setup(tty, port);
 785                 mutex_unlock(&serial->disc_mutex);
 786
 787                 /* Stop reading/writing urbs */
 788                 for (i = 0; i < N_IN_URB; i++)
 789                         usb_kill_urb(portdata->in_urbs[i]);
 790                 for (i = 0; i < N_OUT_URB; i++)
 791                         usb_kill_urb(portdata->out_urbs[i]);
 792         }
 793         tty_port_tty_set(&port->port, NULL);
 794 }
 795
 796 /* Helper functions used by option_setup_urbs */
 797 static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
 798                 int dir, void *ctx, char *buf, int len,
 799                 void (*callback)(struct urb *))
 800 {
 801         struct urb *urb;
 802
 803         if (endpoint == -1)
 804                 return NULL;            /* endpoint not needed */
 805
 806         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 807         if (urb == NULL) {
 808                 dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
 809                 return NULL;
 810         }
 811
 812                 /* Fill URB using supplied data. */
 813         usb_fill_bulk_urb(urb, serial->dev,
 814                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 815                       buf, len, callback, ctx);
 816
 817         return urb;
 818 }
 819
 820 /* Setup urbs */
 821 static void option_setup_urbs(struct usb_serial *serial)
 822 {
 823         int i, j;
 824         struct usb_serial_port *port;
 825         struct option_port_private *portdata;
 826
 827         dbg("%s", __func__);
 828
 829         for (i = 0; i < serial->num_ports; i++) {
 830                 port = serial->port[i];
 831                 portdata = usb_get_serial_port_data(port);
 832
 833                 /* Do indat endpoints first */
 834                 for (j = 0; j < N_IN_URB; ++j) {
 835                         portdata->in_urbs[j] = option_setup_urb(serial,
 836                                         port->bulk_in_endpointAddress,
 837                                         USB_DIR_IN, port,
 838                                         portdata->in_buffer[j],
 839                                         IN_BUFLEN, option_indat_callback);
 840                 }
 841
 842                 /* outdat endpoints */
 843                 for (j = 0; j < N_OUT_URB; ++j) {
 844                         portdata->out_urbs[j] = option_setup_urb(serial,
 845                                         port->bulk_out_endpointAddress,
 846                                         USB_DIR_OUT, port,
 847                                         portdata->out_buffer[j],
 848                                         OUT_BUFLEN, option_outdat_callback);
 849                 }
 850         }
 851 }
 852
 853
 854 /** send RTS/DTR state to the port.
 855  *
 856  * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
 857  * CDC.
 858 */
 859 static int option_send_setup(struct tty_struct *tty,
 860                                                 struct usb_serial_port *port)
 861 {
 862         struct usb_serial *serial = port->serial;
 863         struct option_port_private *portdata;
 864         int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
 865         dbg("%s", __func__);
 866
 867         portdata = usb_get_serial_port_data(port);
 868
 869         if (tty) {
 870                 int val = 0;
 871                 if (portdata->dtr_state)
 872                         val |= 0x01;
 873                 if (portdata->rts_state)
 874                         val |= 0x02;
 875
 876                 return usb_control_msg(serial->dev,
 877                         usb_rcvctrlpipe(serial->dev, 0),
 878                         0x22, 0x21, val, ifNum, NULL, 0, USB_CTRL_SET_TIMEOUT);
 879         }
 880         return 0;
 881 }
 882
 883 static int option_startup(struct usb_serial *serial)
 884 {
 885         int i, j, err;
 886         struct usb_serial_port *port;
 887         struct option_port_private *portdata;
 888         u8 *buffer;
 889
 890         dbg("%s", __func__);
 891
 892         /* Now setup per port private data */
 893         for (i = 0; i < serial->num_ports; i++) {
 894                 port = serial->port[i];
 895                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
 896                 if (!portdata) {
 897                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
 898                                         __func__, i);
 899                         return 1;
 900                 }
 901
 902                 for (j = 0; j < N_IN_URB; j++) {
 903                         buffer = (u8 *)__get_free_page(GFP_KERNEL);
 904                         if (!buffer)
 905                                 goto bail_out_error;
 906                         portdata->in_buffer[j] = buffer;
 907                 }
 908
 909                 for (j = 0; j < N_OUT_URB; j++) {
 910                         buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
 911                         if (!buffer)
 912                                 goto bail_out_error2;
 913                         portdata->out_buffer[j] = buffer;
 914                 }
 915
 916                 usb_set_serial_port_data(port, portdata);
 917
 918                 if (!port->interrupt_in_urb)
 919                         continue;
 920                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 921                 if (err)
 922                         dbg("%s: submit irq_in urb failed %d",
 923                                 __func__, err);
 924         }
 925         option_setup_urbs(serial);
 926         return 0;
 927
 928 bail_out_error2:
 929         for (j = 0; j < N_OUT_URB; j++)
 930                 kfree(portdata->out_buffer[j]);
 931 bail_out_error:
 932         for (j = 0; j < N_IN_URB; j++)
 933                 if (portdata->in_buffer[j])
 934                         free_page((unsigned long)portdata->in_buffer[j]);
 935         kfree(portdata);
 936         return 1;
 937 }
 938
 939 static void option_shutdown(struct usb_serial *serial)
 940 {
 941         int i, j;
 942         struct usb_serial_port *port;
 943         struct option_port_private *portdata;
 944
 945         dbg("%s", __func__);
 946
 947         /* Stop reading/writing urbs */
 948         for (i = 0; i < serial->num_ports; ++i) {
 949                 port = serial->port[i];
 950                 portdata = usb_get_serial_port_data(port);
 951                 for (j = 0; j < N_IN_URB; j++)
 952                         usb_kill_urb(portdata->in_urbs[j]);
 953                 for (j = 0; j < N_OUT_URB; j++)
 954                         usb_kill_urb(portdata->out_urbs[j]);
 955         }
 956
 957         /* Now free them */
 958         for (i = 0; i < serial->num_ports; ++i) {
 959                 port = serial->port[i];
 960                 portdata = usb_get_serial_port_data(port);
 961
 962                 for (j = 0; j < N_IN_URB; j++) {
 963                         if (portdata->in_urbs[j]) {
 964                                 usb_free_urb(portdata->in_urbs[j]);
 965                                 free_page((unsigned long)
 966                                         portdata->in_buffer[j]);
 967                                 portdata->in_urbs[j] = NULL;
 968                         }
 969                 }
 970                 for (j = 0; j < N_OUT_URB; j++) {
 971                         if (portdata->out_urbs[j]) {
 972                                 usb_free_urb(portdata->out_urbs[j]);
 973                                 kfree(portdata->out_buffer[j]);
 974                                 portdata->out_urbs[j] = NULL;
 975                         }
 976                 }
 977         }
 978
 979         /* Now free per port private data */
 980         for (i = 0; i < serial->num_ports; i++) {
 981                 port = serial->port[i];
 982                 kfree(usb_get_serial_port_data(port));
 983         }
 984 }
 985
 986 MODULE_AUTHOR(DRIVER_AUTHOR);
 987 MODULE_DESCRIPTION(DRIVER_DESC);
 988 MODULE_VERSION(DRIVER_VERSION);
 989 MODULE_LICENSE("GPL");
 990
 991 module_param(debug, bool, S_IRUGO | S_IWUSR);
 992 MODULE_PARM_DESC(debug, "Debug messages");