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         printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
 424                DRIVER_DESC "\n");
 425
 426         return 0;
 427
 428 failed_driver_register:
 429         usb_serial_deregister(&option_1port_device);
 430 failed_1port_device_register:
 431         return retval;
 432 }
 433
 434 static void __exit option_exit(void)
 435 {
 436         usb_deregister(&option_driver);
 437         usb_serial_deregister(&option_1port_device);
 438 }
 439
 440 module_init(option_init);
 441 module_exit(option_exit);
 442
 443 static void option_set_termios(struct tty_struct *tty,
 444                 struct usb_serial_port *port, struct ktermios *old_termios)
 445 {
 446         dbg("%s", __func__);
 447         /* Doesn't support option setting */
 448         tty_termios_copy_hw(tty->termios, old_termios);
 449         option_send_setup(tty, port);
 450 }
 451
 452 static int option_tiocmget(struct tty_struct *tty, struct file *file)
 453 {
 454         struct usb_serial_port *port = tty->driver_data;
 455         unsigned int value;
 456         struct option_port_private *portdata;
 457
 458         portdata = usb_get_serial_port_data(port);
 459
 460         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
 461                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
 462                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
 463                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
 464                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
 465                 ((portdata->ri_state) ? TIOCM_RNG : 0);
 466
 467         return value;
 468 }
 469
 470 static int option_tiocmset(struct tty_struct *tty, struct file *file,
 471                         unsigned int set, unsigned int clear)
 472 {
 473         struct usb_serial_port *port = tty->driver_data;
 474         struct option_port_private *portdata;
 475
 476         portdata = usb_get_serial_port_data(port);
 477
 478         /* FIXME: what locks portdata fields ? */
 479         if (set & TIOCM_RTS)
 480                 portdata->rts_state = 1;
 481         if (set & TIOCM_DTR)
 482                 portdata->dtr_state = 1;
 483
 484         if (clear & TIOCM_RTS)
 485                 portdata->rts_state = 0;
 486         if (clear & TIOCM_DTR)
 487                 portdata->dtr_state = 0;
 488         return option_send_setup(tty, port);
 489 }
 490
 491 /* Write */
 492 static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
 493                         const unsigned char *buf, int count)
 494 {
 495         struct option_port_private *portdata;
 496         int i;
 497         int left, todo;
 498         struct urb *this_urb = NULL; /* spurious */
 499         int err;
 500
 501         portdata = usb_get_serial_port_data(port);
 502
 503         dbg("%s: write (%d chars)", __func__, count);
 504
 505         i = 0;
 506         left = count;
 507         for (i = 0; left > 0 && i < N_OUT_URB; i++) {
 508                 todo = left;
 509                 if (todo > OUT_BUFLEN)
 510                         todo = OUT_BUFLEN;
 511
 512                 this_urb = portdata->out_urbs[i];
 513                 if (test_and_set_bit(i, &portdata->out_busy)) {
 514                         if (time_before(jiffies,
 515                                         portdata->tx_start_time[i] + 10 * HZ))
 516                                 continue;
 517                         usb_unlink_urb(this_urb);
 518                         continue;
 519                 }
 520                 if (this_urb->status != 0)
 521                         dbg("usb_write %p failed (err=%d)",
 522                                 this_urb, this_urb->status);
 523
 524                 dbg("%s: endpoint %d buf %d", __func__,
 525                         usb_pipeendpoint(this_urb->pipe), i);
 526
 527                 /* send the data */
 528                 memcpy(this_urb->transfer_buffer, buf, todo);
 529                 this_urb->transfer_buffer_length = todo;
 530
 531                 this_urb->dev = port->serial->dev;
 532                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 533                 if (err) {
 534                         dbg("usb_submit_urb %p (write bulk) failed "
 535                                 "(%d, has %d)", this_urb,
 536                                 err, this_urb->status);
 537                         clear_bit(i, &portdata->out_busy);
 538                         continue;
 539                 }
 540                 portdata->tx_start_time[i] = jiffies;
 541                 buf += todo;
 542                 left -= todo;
 543         }
 544
 545         count -= left;
 546         dbg("%s: wrote (did %d)", __func__, count);
 547         return count;
 548 }
 549
 550 static void option_indat_callback(struct urb *urb)
 551 {
 552         int err;
 553         int endpoint;
 554         struct usb_serial_port *port;
 555         struct tty_struct *tty;
 556         unsigned char *data = urb->transfer_buffer;
 557         int status = urb->status;
 558
 559         dbg("%s: %p", __func__, urb);
 560
 561         endpoint = usb_pipeendpoint(urb->pipe);
 562         port =  urb->context;
 563
 564         if (status) {
 565                 dbg("%s: nonzero status: %d on endpoint %02x.",
 566                     __func__, status, endpoint);
 567         } else {
 568                 tty = tty_port_tty_get(&port->port);
 569                 if (urb->actual_length) {
 570                         tty_buffer_request_room(tty, urb->actual_length);
 571                         tty_insert_flip_string(tty, data, urb->actual_length);
 572                         tty_flip_buffer_push(tty);
 573                 } else
 574                         dbg("%s: empty read urb received", __func__);
 575                 tty_kref_put(tty);
 576
 577                 /* Resubmit urb so we continue receiving */
 578                 if (port->port.count && status != -ESHUTDOWN) {
 579                         err = usb_submit_urb(urb, GFP_ATOMIC);
 580                         if (err)
 581                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 582                                         "(%d)", __func__, err);
 583                 }
 584         }
 585         return;
 586 }
 587
 588 static void option_outdat_callback(struct urb *urb)
 589 {
 590         struct usb_serial_port *port;
 591         struct option_port_private *portdata;
 592         int i;
 593
 594         dbg("%s", __func__);
 595
 596         port =  urb->context;
 597
 598         usb_serial_port_softint(port);
 599
 600         portdata = usb_get_serial_port_data(port);
 601         for (i = 0; i < N_OUT_URB; ++i) {
 602                 if (portdata->out_urbs[i] == urb) {
 603                         smp_mb__before_clear_bit();
 604                         clear_bit(i, &portdata->out_busy);
 605                         break;
 606                 }
 607         }
 608 }
 609
 610 static void option_instat_callback(struct urb *urb)
 611 {
 612         int err;
 613         int status = urb->status;
 614         struct usb_serial_port *port =  urb->context;
 615         struct option_port_private *portdata = usb_get_serial_port_data(port);
 616         struct usb_serial *serial = port->serial;
 617
 618         dbg("%s", __func__);
 619         dbg("%s: urb %p port %p has data %p", __func__, urb, port, portdata);
 620
 621         if (status == 0) {
 622                 struct usb_ctrlrequest *req_pkt =
 623                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 624
 625                 if (!req_pkt) {
 626                         dbg("%s: NULL req_pkt\n", __func__);
 627                         return;
 628                 }
 629                 if ((req_pkt->bRequestType == 0xA1) &&
 630                                 (req_pkt->bRequest == 0x20)) {
 631                         int old_dcd_state;
 632                         unsigned char signals = *((unsigned char *)
 633                                         urb->transfer_buffer +
 634                                         sizeof(struct usb_ctrlrequest));
 635
 636                         dbg("%s: signal x%x", __func__, signals);
 637
 638                         old_dcd_state = portdata->dcd_state;
 639                         portdata->cts_state = 1;
 640                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 641                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 642                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 643
 644                         if (old_dcd_state && !portdata->dcd_state) {
 645                                 struct tty_struct *tty =
 646                                                 tty_port_tty_get(&port->port);
 647                                 if (tty && !C_CLOCAL(tty))
 648                                         tty_hangup(tty);
 649                                 tty_kref_put(tty);
 650                         }
 651                 } else {
 652                         dbg("%s: type %x req %x", __func__,
 653                                 req_pkt->bRequestType, req_pkt->bRequest);
 654                 }
 655         } else
 656                 dbg("%s: error %d", __func__, status);
 657
 658         /* Resubmit urb so we continue receiving IRQ data */
 659         if (status != -ESHUTDOWN) {
 660                 urb->dev = serial->dev;
 661                 err = usb_submit_urb(urb, GFP_ATOMIC);
 662                 if (err)
 663                         dbg("%s: resubmit intr urb failed. (%d)",
 664                                 __func__, err);
 665         }
 666 }
 667
 668 static int option_write_room(struct tty_struct *tty)
 669 {
 670         struct usb_serial_port *port = tty->driver_data;
 671         struct option_port_private *portdata;
 672         int i;
 673         int data_len = 0;
 674         struct urb *this_urb;
 675
 676         portdata = usb_get_serial_port_data(port);
 677
 678
 679         for (i = 0; i < N_OUT_URB; i++) {
 680                 this_urb = portdata->out_urbs[i];
 681                 if (this_urb && !test_bit(i, &portdata->out_busy))
 682                         data_len += OUT_BUFLEN;
 683         }
 684
 685         dbg("%s: %d", __func__, data_len);
 686         return data_len;
 687 }
 688
 689 static int option_chars_in_buffer(struct tty_struct *tty)
 690 {
 691         struct usb_serial_port *port = tty->driver_data;
 692         struct option_port_private *portdata;
 693         int i;
 694         int data_len = 0;
 695         struct urb *this_urb;
 696
 697         portdata = usb_get_serial_port_data(port);
 698
 699         for (i = 0; i < N_OUT_URB; i++) {
 700                 this_urb = portdata->out_urbs[i];
 701                 /* FIXME: This locking is insufficient as this_urb may
 702                    go unused during the test */
 703                 if (this_urb && test_bit(i, &portdata->out_busy))
 704                         data_len += this_urb->transfer_buffer_length;
 705         }
 706         dbg("%s: %d", __func__, data_len);
 707         return data_len;
 708 }
 709
 710 static int option_open(struct tty_struct *tty,
 711                         struct usb_serial_port *port, struct file *filp)
 712 {
 713         struct option_port_private *portdata;
 714         struct usb_serial *serial = port->serial;
 715         int i, err;
 716         struct urb *urb;
 717
 718         portdata = usb_get_serial_port_data(port);
 719
 720         dbg("%s", __func__);
 721
 722         /* Set some sane defaults */
 723         portdata->rts_state = 1;
 724         portdata->dtr_state = 1;
 725
 726         /* Reset low level data toggle and start reading from endpoints */
 727         for (i = 0; i < N_IN_URB; i++) {
 728                 urb = portdata->in_urbs[i];
 729                 if (!urb)
 730                         continue;
 731                 if (urb->dev != serial->dev) {
 732                         dbg("%s: dev %p != %p", __func__,
 733                                 urb->dev, serial->dev);
 734                         continue;
 735                 }
 736
 737                 /*
 738                  * make sure endpoint data toggle is synchronized with the
 739                  * device
 740                  */
 741                 usb_clear_halt(urb->dev, urb->pipe);
 742
 743                 err = usb_submit_urb(urb, GFP_KERNEL);
 744                 if (err) {
 745                         dbg("%s: submit urb %d failed (%d) %d",
 746                                 __func__, i, err,
 747                                 urb->transfer_buffer_length);
 748                 }
 749         }
 750
 751         /* Reset low level data toggle on out endpoints */
 752         for (i = 0; i < N_OUT_URB; i++) {
 753                 urb = portdata->out_urbs[i];
 754                 if (!urb)
 755                         continue;
 756                 urb->dev = serial->dev;
 757                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 758                                 usb_pipeout(urb->pipe), 0); */
 759         }
 760
 761         if (tty)
 762                 tty->low_latency = 1;
 763
 764         option_send_setup(tty, port);
 765
 766         return 0;
 767 }
 768
 769 static void option_close(struct tty_struct *tty,
 770                         struct usb_serial_port *port, struct file *filp)
 771 {
 772         int i;
 773         struct usb_serial *serial = port->serial;
 774         struct option_port_private *portdata;
 775
 776         dbg("%s", __func__);
 777         portdata = usb_get_serial_port_data(port);
 778
 779         portdata->rts_state = 0;
 780         portdata->dtr_state = 0;
 781
 782         if (serial->dev) {
 783                 mutex_lock(&serial->disc_mutex);
 784                 if (!serial->disconnected)
 785                         option_send_setup(tty, port);
 786                 mutex_unlock(&serial->disc_mutex);
 787
 788                 /* Stop reading/writing urbs */
 789                 for (i = 0; i < N_IN_URB; i++)
 790                         usb_kill_urb(portdata->in_urbs[i]);
 791                 for (i = 0; i < N_OUT_URB; i++)
 792                         usb_kill_urb(portdata->out_urbs[i]);
 793         }
 794         tty_port_tty_set(&port->port, NULL);
 795 }
 796
 797 /* Helper functions used by option_setup_urbs */
 798 static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
 799                 int dir, void *ctx, char *buf, int len,
 800                 void (*callback)(struct urb *))
 801 {
 802         struct urb *urb;
 803
 804         if (endpoint == -1)
 805                 return NULL;            /* endpoint not needed */
 806
 807         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 808         if (urb == NULL) {
 809                 dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
 810                 return NULL;
 811         }
 812
 813                 /* Fill URB using supplied data. */
 814         usb_fill_bulk_urb(urb, serial->dev,
 815                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 816                       buf, len, callback, ctx);
 817
 818         return urb;
 819 }
 820
 821 /* Setup urbs */
 822 static void option_setup_urbs(struct usb_serial *serial)
 823 {
 824         int i, j;
 825         struct usb_serial_port *port;
 826         struct option_port_private *portdata;
 827
 828         dbg("%s", __func__);
 829
 830         for (i = 0; i < serial->num_ports; i++) {
 831                 port = serial->port[i];
 832                 portdata = usb_get_serial_port_data(port);
 833
 834                 /* Do indat endpoints first */
 835                 for (j = 0; j < N_IN_URB; ++j) {
 836                         portdata->in_urbs[j] = option_setup_urb(serial,
 837                                         port->bulk_in_endpointAddress,
 838                                         USB_DIR_IN, port,
 839                                         portdata->in_buffer[j],
 840                                         IN_BUFLEN, option_indat_callback);
 841                 }
 842
 843                 /* outdat endpoints */
 844                 for (j = 0; j < N_OUT_URB; ++j) {
 845                         portdata->out_urbs[j] = option_setup_urb(serial,
 846                                         port->bulk_out_endpointAddress,
 847                                         USB_DIR_OUT, port,
 848                                         portdata->out_buffer[j],
 849                                         OUT_BUFLEN, option_outdat_callback);
 850                 }
 851         }
 852 }
 853
 854
 855 /** send RTS/DTR state to the port.
 856  *
 857  * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
 858  * CDC.
 859 */
 860 static int option_send_setup(struct tty_struct *tty,
 861                                                 struct usb_serial_port *port)
 862 {
 863         struct usb_serial *serial = port->serial;
 864         struct option_port_private *portdata;
 865         int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
 866         dbg("%s", __func__);
 867
 868         portdata = usb_get_serial_port_data(port);
 869
 870         if (tty) {
 871                 int val = 0;
 872                 if (portdata->dtr_state)
 873                         val |= 0x01;
 874                 if (portdata->rts_state)
 875                         val |= 0x02;
 876
 877                 return usb_control_msg(serial->dev,
 878                         usb_rcvctrlpipe(serial->dev, 0),
 879                         0x22, 0x21, val, ifNum, NULL, 0, USB_CTRL_SET_TIMEOUT);
 880         }
 881         return 0;
 882 }
 883
 884 static int option_startup(struct usb_serial *serial)
 885 {
 886         int i, j, err;
 887         struct usb_serial_port *port;
 888         struct option_port_private *portdata;
 889         u8 *buffer;
 890
 891         dbg("%s", __func__);
 892
 893         /* Now setup per port private data */
 894         for (i = 0; i < serial->num_ports; i++) {
 895                 port = serial->port[i];
 896                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
 897                 if (!portdata) {
 898                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
 899                                         __func__, i);
 900                         return 1;
 901                 }
 902
 903                 for (j = 0; j < N_IN_URB; j++) {
 904                         buffer = (u8 *)__get_free_page(GFP_KERNEL);
 905                         if (!buffer)
 906                                 goto bail_out_error;
 907                         portdata->in_buffer[j] = buffer;
 908                 }
 909
 910                 for (j = 0; j < N_OUT_URB; j++) {
 911                         buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
 912                         if (!buffer)
 913                                 goto bail_out_error2;
 914                         portdata->out_buffer[j] = buffer;
 915                 }
 916
 917                 usb_set_serial_port_data(port, portdata);
 918
 919                 if (!port->interrupt_in_urb)
 920                         continue;
 921                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 922                 if (err)
 923                         dbg("%s: submit irq_in urb failed %d",
 924                                 __func__, err);
 925         }
 926         option_setup_urbs(serial);
 927         return 0;
 928
 929 bail_out_error2:
 930         for (j = 0; j < N_OUT_URB; j++)
 931                 kfree(portdata->out_buffer[j]);
 932 bail_out_error:
 933         for (j = 0; j < N_IN_URB; j++)
 934                 if (portdata->in_buffer[j])
 935                         free_page((unsigned long)portdata->in_buffer[j]);
 936         kfree(portdata);
 937         return 1;
 938 }
 939
 940 static void option_shutdown(struct usb_serial *serial)
 941 {
 942         int i, j;
 943         struct usb_serial_port *port;
 944         struct option_port_private *portdata;
 945
 946         dbg("%s", __func__);
 947
 948         /* Stop reading/writing urbs */
 949         for (i = 0; i < serial->num_ports; ++i) {
 950                 port = serial->port[i];
 951                 portdata = usb_get_serial_port_data(port);
 952                 for (j = 0; j < N_IN_URB; j++)
 953                         usb_kill_urb(portdata->in_urbs[j]);
 954                 for (j = 0; j < N_OUT_URB; j++)
 955                         usb_kill_urb(portdata->out_urbs[j]);
 956         }
 957
 958         /* Now free them */
 959         for (i = 0; i < serial->num_ports; ++i) {
 960                 port = serial->port[i];
 961                 portdata = usb_get_serial_port_data(port);
 962
 963                 for (j = 0; j < N_IN_URB; j++) {
 964                         if (portdata->in_urbs[j]) {
 965                                 usb_free_urb(portdata->in_urbs[j]);
 966                                 free_page((unsigned long)
 967                                         portdata->in_buffer[j]);
 968                                 portdata->in_urbs[j] = NULL;
 969                         }
 970                 }
 971                 for (j = 0; j < N_OUT_URB; j++) {
 972                         if (portdata->out_urbs[j]) {
 973                                 usb_free_urb(portdata->out_urbs[j]);
 974                                 kfree(portdata->out_buffer[j]);
 975                                 portdata->out_urbs[j] = NULL;
 976                         }
 977                 }
 978         }
 979
 980         /* Now free per port private data */
 981         for (i = 0; i < serial->num_ports; i++) {
 982                 port = serial->port[i];
 983                 kfree(usb_get_serial_port_data(port));
 984         }
 985 }
 986
 987 MODULE_AUTHOR(DRIVER_AUTHOR);
 988 MODULE_DESCRIPTION(DRIVER_DESC);
 989 MODULE_VERSION(DRIVER_VERSION);
 990 MODULE_LICENSE("GPL");
 991
 992 module_param(debug, bool, S_IRUGO | S_IWUSR);
 993 MODULE_PARM_DESC(debug, "Debug messages");