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_GT_MAX                   0x6711
  83 #define OPTION_PRODUCT_FUJI_MODEM_LIGHT         0x6721
  84 #define OPTION_PRODUCT_FUJI_MODEM_GT            0x6741
  85 #define OPTION_PRODUCT_FUJI_MODEM_EX            0x6761
  86 #define OPTION_PRODUCT_FUJI_NETWORK_LIGHT       0x6731
  87 #define OPTION_PRODUCT_FUJI_NETWORK_GT          0x6751
  88 #define OPTION_PRODUCT_FUJI_NETWORK_EX          0x6771
  89 #define OPTION_PRODUCT_KOI_MODEM                0x6800
  90 #define OPTION_PRODUCT_KOI_NETWORK              0x6811
  91 #define OPTION_PRODUCT_SCORPION_MODEM           0x6901
  92 #define OPTION_PRODUCT_SCORPION_NETWORK         0x6911
  93 #define OPTION_PRODUCT_ETNA_MODEM               0x7001
  94 #define OPTION_PRODUCT_ETNA_NETWORK             0x7011
  95 #define OPTION_PRODUCT_ETNA_MODEM_LITE          0x7021
  96 #define OPTION_PRODUCT_ETNA_MODEM_GT            0x7041
  97 #define OPTION_PRODUCT_ETNA_MODEM_EX            0x7061
  98 #define OPTION_PRODUCT_ETNA_NETWORK_LITE        0x7031
  99 #define OPTION_PRODUCT_ETNA_NETWORK_GT          0x7051
 100 #define OPTION_PRODUCT_ETNA_NETWORK_EX          0x7071
 101 #define OPTION_PRODUCT_ETNA_KOI_MODEM           0x7100
 102 #define OPTION_PRODUCT_ETNA_KOI_NETWORK         0x7111
 103
 104 #define HUAWEI_VENDOR_ID                        0x12D1
 105 #define HUAWEI_PRODUCT_E600                     0x1001
 106 #define HUAWEI_PRODUCT_E220                     0x1003
 107 #define HUAWEI_PRODUCT_E220BIS                  0x1004
 108 #define HUAWEI_PRODUCT_E1401                    0x1401
 109 #define HUAWEI_PRODUCT_E1403                    0x1403
 110 #define HUAWEI_PRODUCT_E1405                    0x1405
 111 #define HUAWEI_PRODUCT_E1406                    0x1406
 112 #define HUAWEI_PRODUCT_E1408                    0x1408
 113 #define HUAWEI_PRODUCT_E1409                    0x1409
 114 #define HUAWEI_PRODUCT_E1410                    0x1410
 115 #define HUAWEI_PRODUCT_E1411                    0x1411
 116 #define HUAWEI_PRODUCT_E1412                    0x1412
 117 #define HUAWEI_PRODUCT_E1413                    0x1413
 118 #define HUAWEI_PRODUCT_E1414                    0x1414
 119 #define HUAWEI_PRODUCT_E1415                    0x1415
 120 #define HUAWEI_PRODUCT_E1416                    0x1416
 121 #define HUAWEI_PRODUCT_E1417                    0x1417
 122 #define HUAWEI_PRODUCT_E1418                    0x1418
 123 #define HUAWEI_PRODUCT_E1419                    0x1419
 124
 125 #define NOVATELWIRELESS_VENDOR_ID               0x1410
 126
 127 /* MERLIN EVDO PRODUCTS */
 128 #define NOVATELWIRELESS_PRODUCT_V640            0x1100
 129 #define NOVATELWIRELESS_PRODUCT_V620            0x1110
 130 #define NOVATELWIRELESS_PRODUCT_V740            0x1120
 131 #define NOVATELWIRELESS_PRODUCT_V720            0x1130
 132
 133 /* MERLIN HSDPA/HSPA PRODUCTS */
 134 #define NOVATELWIRELESS_PRODUCT_U730            0x1400
 135 #define NOVATELWIRELESS_PRODUCT_U740            0x1410
 136 #define NOVATELWIRELESS_PRODUCT_U870            0x1420
 137 #define NOVATELWIRELESS_PRODUCT_XU870           0x1430
 138 #define NOVATELWIRELESS_PRODUCT_X950D           0x1450
 139
 140 /* EXPEDITE PRODUCTS */
 141 #define NOVATELWIRELESS_PRODUCT_EV620           0x2100
 142 #define NOVATELWIRELESS_PRODUCT_ES720           0x2110
 143 #define NOVATELWIRELESS_PRODUCT_E725            0x2120
 144 #define NOVATELWIRELESS_PRODUCT_ES620           0x2130
 145 #define NOVATELWIRELESS_PRODUCT_EU730           0x2400
 146 #define NOVATELWIRELESS_PRODUCT_EU740           0x2410
 147 #define NOVATELWIRELESS_PRODUCT_EU870D          0x2420
 148
 149 /* OVATION PRODUCTS */
 150 #define NOVATELWIRELESS_PRODUCT_MC727           0x4100
 151 #define NOVATELWIRELESS_PRODUCT_MC950D          0x4400
 152
 153 /* FUTURE NOVATEL PRODUCTS */
 154 #define NOVATELWIRELESS_PRODUCT_EVDO_1          0x6000
 155 #define NOVATELWIRELESS_PRODUCT_HSPA_1          0x7000
 156 #define NOVATELWIRELESS_PRODUCT_EMBEDDED_1      0x8000
 157 #define NOVATELWIRELESS_PRODUCT_GLOBAL_1        0x9000
 158 #define NOVATELWIRELESS_PRODUCT_EVDO_2          0x6001
 159 #define NOVATELWIRELESS_PRODUCT_HSPA_2          0x7001
 160 #define NOVATELWIRELESS_PRODUCT_EMBEDDED_2      0x8001
 161 #define NOVATELWIRELESS_PRODUCT_GLOBAL_2        0x9001
 162
 163 /* AMOI PRODUCTS */
 164 #define AMOI_VENDOR_ID                          0x1614
 165 #define AMOI_PRODUCT_H01                        0x0800
 166 #define AMOI_PRODUCT_H01A                       0x7002
 167 #define AMOI_PRODUCT_H02                        0x0802
 168
 169 #define DELL_VENDOR_ID                          0x413C
 170
 171 #define KYOCERA_VENDOR_ID                       0x0c88
 172 #define KYOCERA_PRODUCT_KPC650                  0x17da
 173 #define KYOCERA_PRODUCT_KPC680                  0x180a
 174
 175 #define ANYDATA_VENDOR_ID                       0x16d5
 176 #define ANYDATA_PRODUCT_ADU_620UW               0x6202
 177 #define ANYDATA_PRODUCT_ADU_E100A               0x6501
 178 #define ANYDATA_PRODUCT_ADU_500A                0x6502
 179
 180 #define AXESSTEL_VENDOR_ID                      0x1726
 181 #define AXESSTEL_PRODUCT_MV110H                 0x1000
 182
 183 #define ONDA_VENDOR_ID                          0x19d2
 184 #define ONDA_PRODUCT_MSA501HS                   0x0001
 185 #define ONDA_PRODUCT_ET502HS                    0x0002
 186
 187 #define BANDRICH_VENDOR_ID                      0x1A8D
 188 #define BANDRICH_PRODUCT_C100_1                 0x1002
 189 #define BANDRICH_PRODUCT_C100_2                 0x1003
 190 #define BANDRICH_PRODUCT_1004                   0x1004
 191 #define BANDRICH_PRODUCT_1005                   0x1005
 192 #define BANDRICH_PRODUCT_1006                   0x1006
 193 #define BANDRICH_PRODUCT_1007                   0x1007
 194 #define BANDRICH_PRODUCT_1008                   0x1008
 195 #define BANDRICH_PRODUCT_1009                   0x1009
 196 #define BANDRICH_PRODUCT_100A                   0x100a
 197
 198 #define BANDRICH_PRODUCT_100B                   0x100b
 199 #define BANDRICH_PRODUCT_100C                   0x100c
 200 #define BANDRICH_PRODUCT_100D                   0x100d
 201 #define BANDRICH_PRODUCT_100E                   0x100e
 202
 203 #define BANDRICH_PRODUCT_100F                   0x100f
 204 #define BANDRICH_PRODUCT_1010                   0x1010
 205 #define BANDRICH_PRODUCT_1011                   0x1011
 206 #define BANDRICH_PRODUCT_1012                   0x1012
 207
 208 #define AMOI_VENDOR_ID                  0x1614
 209 #define AMOI_PRODUCT_9508                       0x0800
 210
 211 #define QUALCOMM_VENDOR_ID                      0x05C6
 212
 213 #define MAXON_VENDOR_ID                         0x16d8
 214
 215 #define TELIT_VENDOR_ID                         0x1bc7
 216 #define TELIT_PRODUCT_UC864E                    0x1003
 217
 218 /* ZTE PRODUCTS */
 219 #define ZTE_VENDOR_ID                           0x19d2
 220 #define ZTE_PRODUCT_MF628                       0x0015
 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_GT_MAX) },
 238         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_LIGHT) },
 239         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_GT) },
 240         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_EX) },
 241         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_LIGHT) },
 242         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_GT) },
 243         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_EX) },
 244         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_MODEM) },
 245         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_NETWORK) },
 246         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_MODEM) },
 247         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_NETWORK) },
 248         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM) },
 249         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK) },
 250         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_LITE) },
 251         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) },
 252         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) },
 253         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_LITE) },
 254         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_GT) },
 255         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_EX) },
 256         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) },
 257         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_NETWORK) },
 258         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600, 0xff, 0xff, 0xff) },
 259         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220, 0xff, 0xff, 0xff) },
 260         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS, 0xff, 0xff, 0xff) },
 261         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1401, 0xff, 0xff, 0xff) },
 262         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1403, 0xff, 0xff, 0xff) },
 263         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1405, 0xff, 0xff, 0xff) },
 264         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1406, 0xff, 0xff, 0xff) },
 265         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1408, 0xff, 0xff, 0xff) },
 266         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1409, 0xff, 0xff, 0xff) },
 267         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1410, 0xff, 0xff, 0xff) },
 268         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1411, 0xff, 0xff, 0xff) },
 269         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1412, 0xff, 0xff, 0xff) },
 270         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1413, 0xff, 0xff, 0xff) },
 271         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1414, 0xff, 0xff, 0xff) },
 272         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1415, 0xff, 0xff, 0xff) },
 273         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1416, 0xff, 0xff, 0xff) },
 274         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1417, 0xff, 0xff, 0xff) },
 275         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1418, 0xff, 0xff, 0xff) },
 276         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1419, 0xff, 0xff, 0xff) },
 277         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_9508) },
 278         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */
 279         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */
 280         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) }, /* Novatel Merlin EX720/V740/X720 */
 281         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V720) }, /* Novatel Merlin V720/S720/PC720 */
 282         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U730) }, /* Novatel U730/U740 (VF version) */
 283         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U740) }, /* Novatel U740 */
 284         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U870) }, /* Novatel U870 */
 285         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_XU870) }, /* Novatel Merlin XU870 HSDPA/3G */
 286         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_X950D) }, /* Novatel X950D */
 287         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EV620) }, /* Novatel EV620/ES620 CDMA/EV-DO */
 288         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES720) }, /* Novatel ES620/ES720/U720/USB720 */
 289         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E725) }, /* Novatel E725/E726 */
 290         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES620) }, /* Novatel Merlin ES620 SM Bus */
 291         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU730) }, /* Novatel EU730 and Vodafone EU740 */
 292         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU740) }, /* Novatel non-Vodafone EU740 */
 293         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) }, /* Novatel EU850D/EU860D/EU870D */
 294         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) }, /* Novatel MC930D/MC950D */
 295         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) }, /* Novatel MC727/U727/USB727 */
 296         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_1) }, /* Novatel EVDO product */
 297         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_1) }, /* Novatel HSPA product */
 298         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_1) }, /* Novatel Embedded product */
 299         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_1) }, /* Novatel Global product */
 300         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_2) }, /* Novatel EVDO product */
 301         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_2) }, /* Novatel HSPA product */
 302         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_2) }, /* Novatel Embedded product */
 303         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_2) }, /* Novatel Global product */
 304
 305         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01) },
 306         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01A) },
 307         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H02) },
 308
 309         { USB_DEVICE(DELL_VENDOR_ID, 0x8114) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */
 310         { USB_DEVICE(DELL_VENDOR_ID, 0x8115) }, /* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 311         { USB_DEVICE(DELL_VENDOR_ID, 0x8116) }, /* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 312         { USB_DEVICE(DELL_VENDOR_ID, 0x8117) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO ExpressCard == Novatel Merlin XV620 CDMA/EV-DO */
 313         { USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard == Novatel Merlin XU870 HSDPA/3G */
 314         { USB_DEVICE(DELL_VENDOR_ID, 0x8128) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite E720 CDMA/EV-DO */
 315         { USB_DEVICE(DELL_VENDOR_ID, 0x8129) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite ET620 CDMA/EV-DO */
 316         { USB_DEVICE(DELL_VENDOR_ID, 0x8133) }, /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
 317         { USB_DEVICE(DELL_VENDOR_ID, 0x8136) }, /* Dell Wireless HSDPA 5520 == Novatel Expedite EU860D */
 318         { USB_DEVICE(DELL_VENDOR_ID, 0x8137) }, /* Dell Wireless HSDPA 5520 */
 319         { USB_DEVICE(DELL_VENDOR_ID, 0x8138) }, /* Dell Wireless 5520 Voda I Mobile Broadband (3G HSDPA) Minicard */
 320         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },
 321         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
 322         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
 323         { USB_DEVICE(AXESSTEL_VENDOR_ID, AXESSTEL_PRODUCT_MV110H) },
 324         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_MSA501HS) },
 325         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_ET502HS) },
 326         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
 327         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
 328         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1004) },
 329         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1005) },
 330         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1006) },
 331         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1007) },
 332         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1008) },
 333         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1009) },
 334         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100A) },
 335         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100B) },
 336         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100C) },
 337         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100D) },
 338         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100E) },
 339         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100F) },
 340         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1010) },
 341         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1011) },
 342         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1012) },
 343         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC650) },
 344         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
 345         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */
 346         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
 347         { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */
 348         { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864E) },
 349         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF628) },
 350         { } /* Terminating entry */
 351 };
 352 MODULE_DEVICE_TABLE(usb, option_ids);
 353
 354 static struct usb_driver option_driver = {
 355         .name       = "option",
 356         .probe      = usb_serial_probe,
 357         .disconnect = usb_serial_disconnect,
 358         .id_table   = option_ids,
 359         .no_dynamic_id =        1,
 360 };
 361
 362 /* The card has three separate interfaces, which the serial driver
 363  * recognizes separately, thus num_port=1.
 364  */
 365
 366 static struct usb_serial_driver option_1port_device = {
 367         .driver = {
 368                 .owner =        THIS_MODULE,
 369                 .name =         "option1",
 370         },
 371         .description       = "GSM modem (1-port)",
 372         .usb_driver        = &option_driver,
 373         .id_table          = option_ids,
 374         .num_ports         = 1,
 375         .open              = option_open,
 376         .close             = option_close,
 377         .write             = option_write,
 378         .write_room        = option_write_room,
 379         .chars_in_buffer   = option_chars_in_buffer,
 380         .set_termios       = option_set_termios,
 381         .tiocmget          = option_tiocmget,
 382         .tiocmset          = option_tiocmset,
 383         .attach            = option_startup,
 384         .shutdown          = option_shutdown,
 385         .read_int_callback = option_instat_callback,
 386 };
 387
 388 static int debug;
 389
 390 /* per port private data */
 391
 392 #define N_IN_URB 4
 393 #define N_OUT_URB 1
 394 #define IN_BUFLEN 4096
 395 #define OUT_BUFLEN 128
 396
 397 struct option_port_private {
 398         /* Input endpoints and buffer for this port */
 399         struct urb *in_urbs[N_IN_URB];
 400         u8 *in_buffer[N_IN_URB];
 401         /* Output endpoints and buffer for this port */
 402         struct urb *out_urbs[N_OUT_URB];
 403         u8 *out_buffer[N_OUT_URB];
 404         unsigned long out_busy;         /* Bit vector of URBs in use */
 405
 406         /* Settings for the port */
 407         int rts_state;  /* Handshaking pins (outputs) */
 408         int dtr_state;
 409         int cts_state;  /* Handshaking pins (inputs) */
 410         int dsr_state;
 411         int dcd_state;
 412         int ri_state;
 413
 414         unsigned long tx_start_time[N_OUT_URB];
 415 };
 416
 417 /* Functions used by new usb-serial code. */
 418 static int __init option_init(void)
 419 {
 420         int retval;
 421         retval = usb_serial_register(&option_1port_device);
 422         if (retval)
 423                 goto failed_1port_device_register;
 424         retval = usb_register(&option_driver);
 425         if (retval)
 426                 goto failed_driver_register;
 427
 428         info(DRIVER_DESC ": " DRIVER_VERSION);
 429
 430         return 0;
 431
 432 failed_driver_register:
 433         usb_serial_deregister(&option_1port_device);
 434 failed_1port_device_register:
 435         return retval;
 436 }
 437
 438 static void __exit option_exit(void)
 439 {
 440         usb_deregister(&option_driver);
 441         usb_serial_deregister(&option_1port_device);
 442 }
 443
 444 module_init(option_init);
 445 module_exit(option_exit);
 446
 447 static void option_set_termios(struct tty_struct *tty,
 448                 struct usb_serial_port *port, struct ktermios *old_termios)
 449 {
 450         dbg("%s", __func__);
 451         /* Doesn't support option setting */
 452         tty_termios_copy_hw(tty->termios, old_termios);
 453         option_send_setup(tty, port);
 454 }
 455
 456 static int option_tiocmget(struct tty_struct *tty, struct file *file)
 457 {
 458         struct usb_serial_port *port = tty->driver_data;
 459         unsigned int value;
 460         struct option_port_private *portdata;
 461
 462         portdata = usb_get_serial_port_data(port);
 463
 464         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
 465                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
 466                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
 467                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
 468                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
 469                 ((portdata->ri_state) ? TIOCM_RNG : 0);
 470
 471         return value;
 472 }
 473
 474 static int option_tiocmset(struct tty_struct *tty, struct file *file,
 475                         unsigned int set, unsigned int clear)
 476 {
 477         struct usb_serial_port *port = tty->driver_data;
 478         struct option_port_private *portdata;
 479
 480         portdata = usb_get_serial_port_data(port);
 481
 482         /* FIXME: what locks portdata fields ? */
 483         if (set & TIOCM_RTS)
 484                 portdata->rts_state = 1;
 485         if (set & TIOCM_DTR)
 486                 portdata->dtr_state = 1;
 487
 488         if (clear & TIOCM_RTS)
 489                 portdata->rts_state = 0;
 490         if (clear & TIOCM_DTR)
 491                 portdata->dtr_state = 0;
 492         return option_send_setup(tty, port);
 493 }
 494
 495 /* Write */
 496 static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
 497                         const unsigned char *buf, int count)
 498 {
 499         struct option_port_private *portdata;
 500         int i;
 501         int left, todo;
 502         struct urb *this_urb = NULL; /* spurious */
 503         int err;
 504
 505         portdata = usb_get_serial_port_data(port);
 506
 507         dbg("%s: write (%d chars)", __func__, count);
 508
 509         i = 0;
 510         left = count;
 511         for (i = 0; left > 0 && i < N_OUT_URB; i++) {
 512                 todo = left;
 513                 if (todo > OUT_BUFLEN)
 514                         todo = OUT_BUFLEN;
 515
 516                 this_urb = portdata->out_urbs[i];
 517                 if (test_and_set_bit(i, &portdata->out_busy)) {
 518                         if (time_before(jiffies,
 519                                         portdata->tx_start_time[i] + 10 * HZ))
 520                                 continue;
 521                         usb_unlink_urb(this_urb);
 522                         continue;
 523                 }
 524                 if (this_urb->status != 0)
 525                         dbg("usb_write %p failed (err=%d)",
 526                                 this_urb, this_urb->status);
 527
 528                 dbg("%s: endpoint %d buf %d", __func__,
 529                         usb_pipeendpoint(this_urb->pipe), i);
 530
 531                 /* send the data */
 532                 memcpy(this_urb->transfer_buffer, buf, todo);
 533                 this_urb->transfer_buffer_length = todo;
 534
 535                 this_urb->dev = port->serial->dev;
 536                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 537                 if (err) {
 538                         dbg("usb_submit_urb %p (write bulk) failed "
 539                                 "(%d, has %d)", this_urb,
 540                                 err, this_urb->status);
 541                         clear_bit(i, &portdata->out_busy);
 542                         continue;
 543                 }
 544                 portdata->tx_start_time[i] = jiffies;
 545                 buf += todo;
 546                 left -= todo;
 547         }
 548
 549         count -= left;
 550         dbg("%s: wrote (did %d)", __func__, count);
 551         return count;
 552 }
 553
 554 static void option_indat_callback(struct urb *urb)
 555 {
 556         int err;
 557         int endpoint;
 558         struct usb_serial_port *port;
 559         struct tty_struct *tty;
 560         unsigned char *data = urb->transfer_buffer;
 561         int status = urb->status;
 562
 563         dbg("%s: %p", __func__, urb);
 564
 565         endpoint = usb_pipeendpoint(urb->pipe);
 566         port =  urb->context;
 567
 568         if (status) {
 569                 dbg("%s: nonzero status: %d on endpoint %02x.",
 570                     __func__, status, endpoint);
 571         } else {
 572                 tty = port->port.tty;
 573                 if (urb->actual_length) {
 574                         tty_buffer_request_room(tty, urb->actual_length);
 575                         tty_insert_flip_string(tty, data, urb->actual_length);
 576                         tty_flip_buffer_push(tty);
 577                 } else {
 578                         dbg("%s: empty read urb received", __func__);
 579                 }
 580
 581                 /* Resubmit urb so we continue receiving */
 582                 if (port->port.count && status != -ESHUTDOWN) {
 583                         err = usb_submit_urb(urb, GFP_ATOMIC);
 584                         if (err)
 585                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 586                                         "(%d)", __func__, err);
 587                 }
 588         }
 589         return;
 590 }
 591
 592 static void option_outdat_callback(struct urb *urb)
 593 {
 594         struct usb_serial_port *port;
 595         struct option_port_private *portdata;
 596         int i;
 597
 598         dbg("%s", __func__);
 599
 600         port =  urb->context;
 601
 602         usb_serial_port_softint(port);
 603
 604         portdata = usb_get_serial_port_data(port);
 605         for (i = 0; i < N_OUT_URB; ++i) {
 606                 if (portdata->out_urbs[i] == urb) {
 607                         smp_mb__before_clear_bit();
 608                         clear_bit(i, &portdata->out_busy);
 609                         break;
 610                 }
 611         }
 612 }
 613
 614 static void option_instat_callback(struct urb *urb)
 615 {
 616         int err;
 617         int status = urb->status;
 618         struct usb_serial_port *port =  urb->context;
 619         struct option_port_private *portdata = usb_get_serial_port_data(port);
 620         struct usb_serial *serial = port->serial;
 621
 622         dbg("%s", __func__);
 623         dbg("%s: urb %p port %p has data %p", __func__, urb, port, portdata);
 624
 625         if (status == 0) {
 626                 struct usb_ctrlrequest *req_pkt =
 627                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 628
 629                 if (!req_pkt) {
 630                         dbg("%s: NULL req_pkt\n", __func__);
 631                         return;
 632                 }
 633                 if ((req_pkt->bRequestType == 0xA1) &&
 634                                 (req_pkt->bRequest == 0x20)) {
 635                         int old_dcd_state;
 636                         unsigned char signals = *((unsigned char *)
 637                                         urb->transfer_buffer +
 638                                         sizeof(struct usb_ctrlrequest));
 639
 640                         dbg("%s: signal x%x", __func__, signals);
 641
 642                         old_dcd_state = portdata->dcd_state;
 643                         portdata->cts_state = 1;
 644                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 645                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 646                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 647
 648                         if (port->port.tty && !C_CLOCAL(port->port.tty) &&
 649                                         old_dcd_state && !portdata->dcd_state)
 650                                 tty_hangup(port->port.tty);
 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         port->port.tty = NULL;  /* FIXME */
 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");