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 #define ZTE_PRODUCT_CDMA_TECH                   0xfffe
 222
 223 /* Ericsson products */
 224 #define ERICSSON_VENDOR_ID                      0x0bdb
 225 #define ERICSSON_PRODUCT_F3507G                 0x1900
 226
 227 static struct usb_device_id option_ids[] = {
 228         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
 229         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
 230         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
 231         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD) },
 232         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD_LIGHT) },
 233         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS) },
 234         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_LIGHT) },
 235         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD) },
 236         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT) },
 237         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
 238         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA_BUS) },
 239         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER) },
 240         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER_BUS) },
 241         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX_READY) },
 242         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX) },
 243         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_LIGHT) },
 244         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_GT) },
 245         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_EX) },
 246         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_LIGHT) },
 247         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_GT) },
 248         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_EX) },
 249         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_MODEM) },
 250         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_NETWORK) },
 251         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_MODEM) },
 252         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_NETWORK) },
 253         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM) },
 254         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK) },
 255         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_LITE) },
 256         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) },
 257         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) },
 258         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_LITE) },
 259         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_GT) },
 260         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_EX) },
 261         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) },
 262         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_NETWORK) },
 263         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600, 0xff, 0xff, 0xff) },
 264         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220, 0xff, 0xff, 0xff) },
 265         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS, 0xff, 0xff, 0xff) },
 266         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1401, 0xff, 0xff, 0xff) },
 267         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1403, 0xff, 0xff, 0xff) },
 268         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1405, 0xff, 0xff, 0xff) },
 269         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1406, 0xff, 0xff, 0xff) },
 270         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1408, 0xff, 0xff, 0xff) },
 271         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1409, 0xff, 0xff, 0xff) },
 272         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1410, 0xff, 0xff, 0xff) },
 273         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1411, 0xff, 0xff, 0xff) },
 274         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1412, 0xff, 0xff, 0xff) },
 275         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1413, 0xff, 0xff, 0xff) },
 276         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1414, 0xff, 0xff, 0xff) },
 277         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1415, 0xff, 0xff, 0xff) },
 278         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1416, 0xff, 0xff, 0xff) },
 279         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1417, 0xff, 0xff, 0xff) },
 280         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1418, 0xff, 0xff, 0xff) },
 281         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1419, 0xff, 0xff, 0xff) },
 282         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_9508) },
 283         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */
 284         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */
 285         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) }, /* Novatel Merlin EX720/V740/X720 */
 286         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V720) }, /* Novatel Merlin V720/S720/PC720 */
 287         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U730) }, /* Novatel U730/U740 (VF version) */
 288         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U740) }, /* Novatel U740 */
 289         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U870) }, /* Novatel U870 */
 290         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_XU870) }, /* Novatel Merlin XU870 HSDPA/3G */
 291         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_X950D) }, /* Novatel X950D */
 292         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EV620) }, /* Novatel EV620/ES620 CDMA/EV-DO */
 293         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES720) }, /* Novatel ES620/ES720/U720/USB720 */
 294         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E725) }, /* Novatel E725/E726 */
 295         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES620) }, /* Novatel Merlin ES620 SM Bus */
 296         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU730) }, /* Novatel EU730 and Vodafone EU740 */
 297         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU740) }, /* Novatel non-Vodafone EU740 */
 298         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) }, /* Novatel EU850D/EU860D/EU870D */
 299         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) }, /* Novatel MC930D/MC950D */
 300         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) }, /* Novatel MC727/U727/USB727 */
 301         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_1) }, /* Novatel EVDO product */
 302         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_1) }, /* Novatel HSPA product */
 303         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_1) }, /* Novatel Embedded product */
 304         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_1) }, /* Novatel Global product */
 305         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_2) }, /* Novatel EVDO product */
 306         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_2) }, /* Novatel HSPA product */
 307         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_2) }, /* Novatel Embedded product */
 308         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_2) }, /* Novatel Global product */
 309
 310         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01) },
 311         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01A) },
 312         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H02) },
 313
 314         { USB_DEVICE(DELL_VENDOR_ID, 0x8114) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */
 315         { USB_DEVICE(DELL_VENDOR_ID, 0x8115) }, /* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 316         { USB_DEVICE(DELL_VENDOR_ID, 0x8116) }, /* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 317         { USB_DEVICE(DELL_VENDOR_ID, 0x8117) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO ExpressCard == Novatel Merlin XV620 CDMA/EV-DO */
 318         { USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard == Novatel Merlin XU870 HSDPA/3G */
 319         { USB_DEVICE(DELL_VENDOR_ID, 0x8128) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite E720 CDMA/EV-DO */
 320         { USB_DEVICE(DELL_VENDOR_ID, 0x8129) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite ET620 CDMA/EV-DO */
 321         { USB_DEVICE(DELL_VENDOR_ID, 0x8133) }, /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
 322         { USB_DEVICE(DELL_VENDOR_ID, 0x8136) }, /* Dell Wireless HSDPA 5520 == Novatel Expedite EU860D */
 323         { USB_DEVICE(DELL_VENDOR_ID, 0x8137) }, /* Dell Wireless HSDPA 5520 */
 324         { USB_DEVICE(DELL_VENDOR_ID, 0x8138) }, /* Dell Wireless 5520 Voda I Mobile Broadband (3G HSDPA) Minicard */
 325         { USB_DEVICE(DELL_VENDOR_ID, 0x8147) }, /* Dell Wireless 5530 Mobile Broadband (3G HSPA) Mini-Card */
 326         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },
 327         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
 328         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
 329         { USB_DEVICE(AXESSTEL_VENDOR_ID, AXESSTEL_PRODUCT_MV110H) },
 330         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_MSA501HS) },
 331         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_ET502HS) },
 332         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
 333         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
 334         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1004) },
 335         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1005) },
 336         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1006) },
 337         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1007) },
 338         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1008) },
 339         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1009) },
 340         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100A) },
 341         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100B) },
 342         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100C) },
 343         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100D) },
 344         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100E) },
 345         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100F) },
 346         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1010) },
 347         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1011) },
 348         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1012) },
 349         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC650) },
 350         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
 351         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */
 352         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
 353         { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */
 354         { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864E) },
 355         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF628) },
 356         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH) },
 357         { USB_DEVICE(ERICSSON_VENDOR_ID, ERICSSON_PRODUCT_F3507G) },
 358         { } /* Terminating entry */
 359 };
 360 MODULE_DEVICE_TABLE(usb, option_ids);
 361
 362 static struct usb_driver option_driver = {
 363         .name       = "option",
 364         .probe      = usb_serial_probe,
 365         .disconnect = usb_serial_disconnect,
 366         .id_table   = option_ids,
 367         .no_dynamic_id =        1,
 368 };
 369
 370 /* The card has three separate interfaces, which the serial driver
 371  * recognizes separately, thus num_port=1.
 372  */
 373
 374 static struct usb_serial_driver option_1port_device = {
 375         .driver = {
 376                 .owner =        THIS_MODULE,
 377                 .name =         "option1",
 378         },
 379         .description       = "GSM modem (1-port)",
 380         .usb_driver        = &option_driver,
 381         .id_table          = option_ids,
 382         .num_ports         = 1,
 383         .open              = option_open,
 384         .close             = option_close,
 385         .write             = option_write,
 386         .write_room        = option_write_room,
 387         .chars_in_buffer   = option_chars_in_buffer,
 388         .set_termios       = option_set_termios,
 389         .tiocmget          = option_tiocmget,
 390         .tiocmset          = option_tiocmset,
 391         .attach            = option_startup,
 392         .shutdown          = option_shutdown,
 393         .read_int_callback = option_instat_callback,
 394 };
 395
 396 static int debug;
 397
 398 /* per port private data */
 399
 400 #define N_IN_URB 4
 401 #define N_OUT_URB 1
 402 #define IN_BUFLEN 4096
 403 #define OUT_BUFLEN 128
 404
 405 struct option_port_private {
 406         /* Input endpoints and buffer for this port */
 407         struct urb *in_urbs[N_IN_URB];
 408         u8 *in_buffer[N_IN_URB];
 409         /* Output endpoints and buffer for this port */
 410         struct urb *out_urbs[N_OUT_URB];
 411         u8 *out_buffer[N_OUT_URB];
 412         unsigned long out_busy;         /* Bit vector of URBs in use */
 413
 414         /* Settings for the port */
 415         int rts_state;  /* Handshaking pins (outputs) */
 416         int dtr_state;
 417         int cts_state;  /* Handshaking pins (inputs) */
 418         int dsr_state;
 419         int dcd_state;
 420         int ri_state;
 421
 422         unsigned long tx_start_time[N_OUT_URB];
 423 };
 424
 425 /* Functions used by new usb-serial code. */
 426 static int __init option_init(void)
 427 {
 428         int retval;
 429         retval = usb_serial_register(&option_1port_device);
 430         if (retval)
 431                 goto failed_1port_device_register;
 432         retval = usb_register(&option_driver);
 433         if (retval)
 434                 goto failed_driver_register;
 435
 436         info(DRIVER_DESC ": " DRIVER_VERSION);
 437
 438         return 0;
 439
 440 failed_driver_register:
 441         usb_serial_deregister(&option_1port_device);
 442 failed_1port_device_register:
 443         return retval;
 444 }
 445
 446 static void __exit option_exit(void)
 447 {
 448         usb_deregister(&option_driver);
 449         usb_serial_deregister(&option_1port_device);
 450 }
 451
 452 module_init(option_init);
 453 module_exit(option_exit);
 454
 455 static void option_set_termios(struct tty_struct *tty,
 456                 struct usb_serial_port *port, struct ktermios *old_termios)
 457 {
 458         dbg("%s", __func__);
 459         /* Doesn't support option setting */
 460         tty_termios_copy_hw(tty->termios, old_termios);
 461         option_send_setup(tty, port);
 462 }
 463
 464 static int option_tiocmget(struct tty_struct *tty, struct file *file)
 465 {
 466         struct usb_serial_port *port = tty->driver_data;
 467         unsigned int value;
 468         struct option_port_private *portdata;
 469
 470         portdata = usb_get_serial_port_data(port);
 471
 472         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
 473                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
 474                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
 475                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
 476                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
 477                 ((portdata->ri_state) ? TIOCM_RNG : 0);
 478
 479         return value;
 480 }
 481
 482 static int option_tiocmset(struct tty_struct *tty, struct file *file,
 483                         unsigned int set, unsigned int clear)
 484 {
 485         struct usb_serial_port *port = tty->driver_data;
 486         struct option_port_private *portdata;
 487
 488         portdata = usb_get_serial_port_data(port);
 489
 490         /* FIXME: what locks portdata fields ? */
 491         if (set & TIOCM_RTS)
 492                 portdata->rts_state = 1;
 493         if (set & TIOCM_DTR)
 494                 portdata->dtr_state = 1;
 495
 496         if (clear & TIOCM_RTS)
 497                 portdata->rts_state = 0;
 498         if (clear & TIOCM_DTR)
 499                 portdata->dtr_state = 0;
 500         return option_send_setup(tty, port);
 501 }
 502
 503 /* Write */
 504 static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
 505                         const unsigned char *buf, int count)
 506 {
 507         struct option_port_private *portdata;
 508         int i;
 509         int left, todo;
 510         struct urb *this_urb = NULL; /* spurious */
 511         int err;
 512
 513         portdata = usb_get_serial_port_data(port);
 514
 515         dbg("%s: write (%d chars)", __func__, count);
 516
 517         i = 0;
 518         left = count;
 519         for (i = 0; left > 0 && i < N_OUT_URB; i++) {
 520                 todo = left;
 521                 if (todo > OUT_BUFLEN)
 522                         todo = OUT_BUFLEN;
 523
 524                 this_urb = portdata->out_urbs[i];
 525                 if (test_and_set_bit(i, &portdata->out_busy)) {
 526                         if (time_before(jiffies,
 527                                         portdata->tx_start_time[i] + 10 * HZ))
 528                                 continue;
 529                         usb_unlink_urb(this_urb);
 530                         continue;
 531                 }
 532                 if (this_urb->status != 0)
 533                         dbg("usb_write %p failed (err=%d)",
 534                                 this_urb, this_urb->status);
 535
 536                 dbg("%s: endpoint %d buf %d", __func__,
 537                         usb_pipeendpoint(this_urb->pipe), i);
 538
 539                 /* send the data */
 540                 memcpy(this_urb->transfer_buffer, buf, todo);
 541                 this_urb->transfer_buffer_length = todo;
 542
 543                 this_urb->dev = port->serial->dev;
 544                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 545                 if (err) {
 546                         dbg("usb_submit_urb %p (write bulk) failed "
 547                                 "(%d, has %d)", this_urb,
 548                                 err, this_urb->status);
 549                         clear_bit(i, &portdata->out_busy);
 550                         continue;
 551                 }
 552                 portdata->tx_start_time[i] = jiffies;
 553                 buf += todo;
 554                 left -= todo;
 555         }
 556
 557         count -= left;
 558         dbg("%s: wrote (did %d)", __func__, count);
 559         return count;
 560 }
 561
 562 static void option_indat_callback(struct urb *urb)
 563 {
 564         int err;
 565         int endpoint;
 566         struct usb_serial_port *port;
 567         struct tty_struct *tty;
 568         unsigned char *data = urb->transfer_buffer;
 569         int status = urb->status;
 570
 571         dbg("%s: %p", __func__, urb);
 572
 573         endpoint = usb_pipeendpoint(urb->pipe);
 574         port =  urb->context;
 575
 576         if (status) {
 577                 dbg("%s: nonzero status: %d on endpoint %02x.",
 578                     __func__, status, endpoint);
 579         } else {
 580                 tty = tty_port_tty_get(&port->port);
 581                 if (urb->actual_length) {
 582                         tty_buffer_request_room(tty, urb->actual_length);
 583                         tty_insert_flip_string(tty, data, urb->actual_length);
 584                         tty_flip_buffer_push(tty);
 585                 } else
 586                         dbg("%s: empty read urb received", __func__);
 587                 tty_kref_put(tty);
 588
 589                 /* Resubmit urb so we continue receiving */
 590                 if (port->port.count && status != -ESHUTDOWN) {
 591                         err = usb_submit_urb(urb, GFP_ATOMIC);
 592                         if (err)
 593                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 594                                         "(%d)", __func__, err);
 595                 }
 596         }
 597         return;
 598 }
 599
 600 static void option_outdat_callback(struct urb *urb)
 601 {
 602         struct usb_serial_port *port;
 603         struct option_port_private *portdata;
 604         int i;
 605
 606         dbg("%s", __func__);
 607
 608         port =  urb->context;
 609
 610         usb_serial_port_softint(port);
 611
 612         portdata = usb_get_serial_port_data(port);
 613         for (i = 0; i < N_OUT_URB; ++i) {
 614                 if (portdata->out_urbs[i] == urb) {
 615                         smp_mb__before_clear_bit();
 616                         clear_bit(i, &portdata->out_busy);
 617                         break;
 618                 }
 619         }
 620 }
 621
 622 static void option_instat_callback(struct urb *urb)
 623 {
 624         int err;
 625         int status = urb->status;
 626         struct usb_serial_port *port =  urb->context;
 627         struct option_port_private *portdata = usb_get_serial_port_data(port);
 628         struct usb_serial *serial = port->serial;
 629
 630         dbg("%s", __func__);
 631         dbg("%s: urb %p port %p has data %p", __func__, urb, port, portdata);
 632
 633         if (status == 0) {
 634                 struct usb_ctrlrequest *req_pkt =
 635                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 636
 637                 if (!req_pkt) {
 638                         dbg("%s: NULL req_pkt\n", __func__);
 639                         return;
 640                 }
 641                 if ((req_pkt->bRequestType == 0xA1) &&
 642                                 (req_pkt->bRequest == 0x20)) {
 643                         int old_dcd_state;
 644                         unsigned char signals = *((unsigned char *)
 645                                         urb->transfer_buffer +
 646                                         sizeof(struct usb_ctrlrequest));
 647
 648                         dbg("%s: signal x%x", __func__, signals);
 649
 650                         old_dcd_state = portdata->dcd_state;
 651                         portdata->cts_state = 1;
 652                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 653                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 654                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 655
 656                         if (old_dcd_state && !portdata->dcd_state) {
 657                                 struct tty_struct *tty =
 658                                                 tty_port_tty_get(&port->port);
 659                                 if (tty && !C_CLOCAL(tty))
 660                                         tty_hangup(tty);
 661                                 tty_kref_put(tty);
 662                         }
 663                 } else {
 664                         dbg("%s: type %x req %x", __func__,
 665                                 req_pkt->bRequestType, req_pkt->bRequest);
 666                 }
 667         } else
 668                 dbg("%s: error %d", __func__, status);
 669
 670         /* Resubmit urb so we continue receiving IRQ data */
 671         if (status != -ESHUTDOWN) {
 672                 urb->dev = serial->dev;
 673                 err = usb_submit_urb(urb, GFP_ATOMIC);
 674                 if (err)
 675                         dbg("%s: resubmit intr urb failed. (%d)",
 676                                 __func__, err);
 677         }
 678 }
 679
 680 static int option_write_room(struct tty_struct *tty)
 681 {
 682         struct usb_serial_port *port = tty->driver_data;
 683         struct option_port_private *portdata;
 684         int i;
 685         int data_len = 0;
 686         struct urb *this_urb;
 687
 688         portdata = usb_get_serial_port_data(port);
 689
 690
 691         for (i = 0; i < N_OUT_URB; i++) {
 692                 this_urb = portdata->out_urbs[i];
 693                 if (this_urb && !test_bit(i, &portdata->out_busy))
 694                         data_len += OUT_BUFLEN;
 695         }
 696
 697         dbg("%s: %d", __func__, data_len);
 698         return data_len;
 699 }
 700
 701 static int option_chars_in_buffer(struct tty_struct *tty)
 702 {
 703         struct usb_serial_port *port = tty->driver_data;
 704         struct option_port_private *portdata;
 705         int i;
 706         int data_len = 0;
 707         struct urb *this_urb;
 708
 709         portdata = usb_get_serial_port_data(port);
 710
 711         for (i = 0; i < N_OUT_URB; i++) {
 712                 this_urb = portdata->out_urbs[i];
 713                 /* FIXME: This locking is insufficient as this_urb may
 714                    go unused during the test */
 715                 if (this_urb && test_bit(i, &portdata->out_busy))
 716                         data_len += this_urb->transfer_buffer_length;
 717         }
 718         dbg("%s: %d", __func__, data_len);
 719         return data_len;
 720 }
 721
 722 static int option_open(struct tty_struct *tty,
 723                         struct usb_serial_port *port, struct file *filp)
 724 {
 725         struct option_port_private *portdata;
 726         struct usb_serial *serial = port->serial;
 727         int i, err;
 728         struct urb *urb;
 729
 730         portdata = usb_get_serial_port_data(port);
 731
 732         dbg("%s", __func__);
 733
 734         /* Set some sane defaults */
 735         portdata->rts_state = 1;
 736         portdata->dtr_state = 1;
 737
 738         /* Reset low level data toggle and start reading from endpoints */
 739         for (i = 0; i < N_IN_URB; i++) {
 740                 urb = portdata->in_urbs[i];
 741                 if (!urb)
 742                         continue;
 743                 if (urb->dev != serial->dev) {
 744                         dbg("%s: dev %p != %p", __func__,
 745                                 urb->dev, serial->dev);
 746                         continue;
 747                 }
 748
 749                 /*
 750                  * make sure endpoint data toggle is synchronized with the
 751                  * device
 752                  */
 753                 usb_clear_halt(urb->dev, urb->pipe);
 754
 755                 err = usb_submit_urb(urb, GFP_KERNEL);
 756                 if (err) {
 757                         dbg("%s: submit urb %d failed (%d) %d",
 758                                 __func__, i, err,
 759                                 urb->transfer_buffer_length);
 760                 }
 761         }
 762
 763         /* Reset low level data toggle on out endpoints */
 764         for (i = 0; i < N_OUT_URB; i++) {
 765                 urb = portdata->out_urbs[i];
 766                 if (!urb)
 767                         continue;
 768                 urb->dev = serial->dev;
 769                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 770                                 usb_pipeout(urb->pipe), 0); */
 771         }
 772
 773         if (tty)
 774                 tty->low_latency = 1;
 775
 776         option_send_setup(tty, port);
 777
 778         return 0;
 779 }
 780
 781 static void option_close(struct tty_struct *tty,
 782                         struct usb_serial_port *port, struct file *filp)
 783 {
 784         int i;
 785         struct usb_serial *serial = port->serial;
 786         struct option_port_private *portdata;
 787
 788         dbg("%s", __func__);
 789         portdata = usb_get_serial_port_data(port);
 790
 791         portdata->rts_state = 0;
 792         portdata->dtr_state = 0;
 793
 794         if (serial->dev) {
 795                 mutex_lock(&serial->disc_mutex);
 796                 if (!serial->disconnected)
 797                         option_send_setup(tty, port);
 798                 mutex_unlock(&serial->disc_mutex);
 799
 800                 /* Stop reading/writing urbs */
 801                 for (i = 0; i < N_IN_URB; i++)
 802                         usb_kill_urb(portdata->in_urbs[i]);
 803                 for (i = 0; i < N_OUT_URB; i++)
 804                         usb_kill_urb(portdata->out_urbs[i]);
 805         }
 806         tty_port_tty_set(&port->port, NULL);
 807 }
 808
 809 /* Helper functions used by option_setup_urbs */
 810 static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
 811                 int dir, void *ctx, char *buf, int len,
 812                 void (*callback)(struct urb *))
 813 {
 814         struct urb *urb;
 815
 816         if (endpoint == -1)
 817                 return NULL;            /* endpoint not needed */
 818
 819         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 820         if (urb == NULL) {
 821                 dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
 822                 return NULL;
 823         }
 824
 825                 /* Fill URB using supplied data. */
 826         usb_fill_bulk_urb(urb, serial->dev,
 827                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 828                       buf, len, callback, ctx);
 829
 830         return urb;
 831 }
 832
 833 /* Setup urbs */
 834 static void option_setup_urbs(struct usb_serial *serial)
 835 {
 836         int i, j;
 837         struct usb_serial_port *port;
 838         struct option_port_private *portdata;
 839
 840         dbg("%s", __func__);
 841
 842         for (i = 0; i < serial->num_ports; i++) {
 843                 port = serial->port[i];
 844                 portdata = usb_get_serial_port_data(port);
 845
 846                 /* Do indat endpoints first */
 847                 for (j = 0; j < N_IN_URB; ++j) {
 848                         portdata->in_urbs[j] = option_setup_urb(serial,
 849                                         port->bulk_in_endpointAddress,
 850                                         USB_DIR_IN, port,
 851                                         portdata->in_buffer[j],
 852                                         IN_BUFLEN, option_indat_callback);
 853                 }
 854
 855                 /* outdat endpoints */
 856                 for (j = 0; j < N_OUT_URB; ++j) {
 857                         portdata->out_urbs[j] = option_setup_urb(serial,
 858                                         port->bulk_out_endpointAddress,
 859                                         USB_DIR_OUT, port,
 860                                         portdata->out_buffer[j],
 861                                         OUT_BUFLEN, option_outdat_callback);
 862                 }
 863         }
 864 }
 865
 866
 867 /** send RTS/DTR state to the port.
 868  *
 869  * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
 870  * CDC.
 871 */
 872 static int option_send_setup(struct tty_struct *tty,
 873                                                 struct usb_serial_port *port)
 874 {
 875         struct usb_serial *serial = port->serial;
 876         struct option_port_private *portdata;
 877         int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
 878         dbg("%s", __func__);
 879
 880         portdata = usb_get_serial_port_data(port);
 881
 882         if (tty) {
 883                 int val = 0;
 884                 if (portdata->dtr_state)
 885                         val |= 0x01;
 886                 if (portdata->rts_state)
 887                         val |= 0x02;
 888
 889                 return usb_control_msg(serial->dev,
 890                         usb_rcvctrlpipe(serial->dev, 0),
 891                         0x22, 0x21, val, ifNum, NULL, 0, USB_CTRL_SET_TIMEOUT);
 892         }
 893         return 0;
 894 }
 895
 896 static int option_startup(struct usb_serial *serial)
 897 {
 898         int i, j, err;
 899         struct usb_serial_port *port;
 900         struct option_port_private *portdata;
 901         u8 *buffer;
 902
 903         dbg("%s", __func__);
 904
 905         /* Now setup per port private data */
 906         for (i = 0; i < serial->num_ports; i++) {
 907                 port = serial->port[i];
 908                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
 909                 if (!portdata) {
 910                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
 911                                         __func__, i);
 912                         return 1;
 913                 }
 914
 915                 for (j = 0; j < N_IN_URB; j++) {
 916                         buffer = (u8 *)__get_free_page(GFP_KERNEL);
 917                         if (!buffer)
 918                                 goto bail_out_error;
 919                         portdata->in_buffer[j] = buffer;
 920                 }
 921
 922                 for (j = 0; j < N_OUT_URB; j++) {
 923                         buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
 924                         if (!buffer)
 925                                 goto bail_out_error2;
 926                         portdata->out_buffer[j] = buffer;
 927                 }
 928
 929                 usb_set_serial_port_data(port, portdata);
 930
 931                 if (!port->interrupt_in_urb)
 932                         continue;
 933                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 934                 if (err)
 935                         dbg("%s: submit irq_in urb failed %d",
 936                                 __func__, err);
 937         }
 938         option_setup_urbs(serial);
 939         return 0;
 940
 941 bail_out_error2:
 942         for (j = 0; j < N_OUT_URB; j++)
 943                 kfree(portdata->out_buffer[j]);
 944 bail_out_error:
 945         for (j = 0; j < N_IN_URB; j++)
 946                 if (portdata->in_buffer[j])
 947                         free_page((unsigned long)portdata->in_buffer[j]);
 948         kfree(portdata);
 949         return 1;
 950 }
 951
 952 static void option_shutdown(struct usb_serial *serial)
 953 {
 954         int i, j;
 955         struct usb_serial_port *port;
 956         struct option_port_private *portdata;
 957
 958         dbg("%s", __func__);
 959
 960         /* Stop reading/writing urbs */
 961         for (i = 0; i < serial->num_ports; ++i) {
 962                 port = serial->port[i];
 963                 portdata = usb_get_serial_port_data(port);
 964                 for (j = 0; j < N_IN_URB; j++)
 965                         usb_kill_urb(portdata->in_urbs[j]);
 966                 for (j = 0; j < N_OUT_URB; j++)
 967                         usb_kill_urb(portdata->out_urbs[j]);
 968         }
 969
 970         /* Now free them */
 971         for (i = 0; i < serial->num_ports; ++i) {
 972                 port = serial->port[i];
 973                 portdata = usb_get_serial_port_data(port);
 974
 975                 for (j = 0; j < N_IN_URB; j++) {
 976                         if (portdata->in_urbs[j]) {
 977                                 usb_free_urb(portdata->in_urbs[j]);
 978                                 free_page((unsigned long)
 979                                         portdata->in_buffer[j]);
 980                                 portdata->in_urbs[j] = NULL;
 981                         }
 982                 }
 983                 for (j = 0; j < N_OUT_URB; j++) {
 984                         if (portdata->out_urbs[j]) {
 985                                 usb_free_urb(portdata->out_urbs[j]);
 986                                 kfree(portdata->out_buffer[j]);
 987                                 portdata->out_urbs[j] = NULL;
 988                         }
 989                 }
 990         }
 991
 992         /* Now free per port private data */
 993         for (i = 0; i < serial->num_ports; i++) {
 994                 port = serial->port[i];
 995                 kfree(usb_get_serial_port_data(port));
 996         }
 997 }
 998
 999 MODULE_AUTHOR(DRIVER_AUTHOR);
1000 MODULE_DESCRIPTION(DRIVER_DESC);
1001 MODULE_VERSION(DRIVER_VERSION);
1002 MODULE_LICENSE("GPL");
1003
1004 module_param(debug, bool, S_IRUGO | S_IWUSR);
1005 MODULE_PARM_DESC(debug, "Debug messages");