drivers/usb/serial/option.c

   1 /*
   2   USB Driver for GSM modems
   3
   4   Copyright (C) 2005  Matthias Urlichs <smurf@smurf.noris.de>
   5
   6   This driver is free software; you can redistribute it and/or modify
   7   it under the terms of Version 2 of the GNU General Public License as
   8   published by the Free Software Foundation.
   9
  10   Portions copied from the Keyspan driver by Hugh Blemings <hugh@blemings.org>
  11
  12   History: see the git log.
  13
  14   Work sponsored by: Sigos GmbH, Germany <info@sigos.de>
  15
  16   This driver exists because the "normal" serial driver doesn't work too well
  17   with GSM modems. Issues:
  18   - data loss -- one single Receive URB is not nearly enough
  19   - nonstandard flow (Option devices) control
  20   - controlling the baud rate doesn't make sense
  21
  22   This driver is named "option" because the most common device it's
  23   used for is a PC-Card (with an internal OHCI-USB interface, behind
  24   which the GSM interface sits), made by Option Inc.
  25
  26   Some of the "one port" devices actually exhibit multiple USB instances
  27   on the USB bus. This is not a bug, these ports are used for different
  28   device features.
  29 */
  30
  31 #define DRIVER_VERSION "v0.7.2"
  32 #define DRIVER_AUTHOR "Matthias Urlichs <smurf@smurf.noris.de>"
  33 #define DRIVER_DESC "USB Driver for GSM modems"
  34
  35 #include <linux/kernel.h>
  36 #include <linux/jiffies.h>
  37 #include <linux/errno.h>
  38 #include <linux/tty.h>
  39 #include <linux/tty_flip.h>
  40 #include <linux/module.h>
  41 #include <linux/bitops.h>
  42 #include <linux/usb.h>
  43 #include <linux/usb/serial.h>
  44
  45 /* Function prototypes */
  46 static int  option_open(struct tty_struct *tty, struct usb_serial_port *port,
  47                                                         struct file *filp);
  48 static void option_close(struct tty_struct *tty, struct usb_serial_port *port,
  49                                                         struct file *filp);
  50 static int  option_startup(struct usb_serial *serial);
  51 static void option_shutdown(struct usb_serial *serial);
  52 static int  option_write_room(struct tty_struct *tty);
  53
  54 static void option_instat_callback(struct urb *urb);
  55
  56 static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
  57                         const unsigned char *buf, int count);
  58 static int  option_chars_in_buffer(struct tty_struct *tty);
  59 static void option_set_termios(struct tty_struct *tty,
  60                         struct usb_serial_port *port, struct ktermios *old);
  61 static int  option_tiocmget(struct tty_struct *tty, struct file *file);
  62 static int  option_tiocmset(struct tty_struct *tty, struct file *file,
  63                                 unsigned int set, unsigned int clear);
  64 static int  option_send_setup(struct tty_struct *tty, struct usb_serial_port *port);
  65
  66 /* Vendor and product IDs */
  67 #define OPTION_VENDOR_ID                        0x0AF0
  68 #define OPTION_PRODUCT_COLT                     0x5000
  69 #define OPTION_PRODUCT_RICOLA                   0x6000
  70 #define OPTION_PRODUCT_RICOLA_LIGHT             0x6100
  71 #define OPTION_PRODUCT_RICOLA_QUAD              0x6200
  72 #define OPTION_PRODUCT_RICOLA_QUAD_LIGHT        0x6300
  73 #define OPTION_PRODUCT_RICOLA_NDIS              0x6050
  74 #define OPTION_PRODUCT_RICOLA_NDIS_LIGHT        0x6150
  75 #define OPTION_PRODUCT_RICOLA_NDIS_QUAD         0x6250
  76 #define OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT   0x6350
  77 #define OPTION_PRODUCT_COBRA                    0x6500
  78 #define OPTION_PRODUCT_COBRA_BUS                0x6501
  79 #define OPTION_PRODUCT_VIPER                    0x6600
  80 #define OPTION_PRODUCT_VIPER_BUS                0x6601
  81 #define OPTION_PRODUCT_GT_MAX_READY             0x6701
  82 #define OPTION_PRODUCT_FUJI_MODEM_LIGHT         0x6721
  83 #define OPTION_PRODUCT_FUJI_MODEM_GT            0x6741
  84 #define OPTION_PRODUCT_FUJI_MODEM_EX            0x6761
  85 #define OPTION_PRODUCT_KOI_MODEM                0x6800
  86 #define OPTION_PRODUCT_SCORPION_MODEM           0x6901
  87 #define OPTION_PRODUCT_ETNA_MODEM               0x7001
  88 #define OPTION_PRODUCT_ETNA_MODEM_LITE          0x7021
  89 #define OPTION_PRODUCT_ETNA_MODEM_GT            0x7041
  90 #define OPTION_PRODUCT_ETNA_MODEM_EX            0x7061
  91 #define OPTION_PRODUCT_ETNA_KOI_MODEM           0x7100
  92
  93 #define HUAWEI_VENDOR_ID                        0x12D1
  94 #define HUAWEI_PRODUCT_E600                     0x1001
  95 #define HUAWEI_PRODUCT_E220                     0x1003
  96 #define HUAWEI_PRODUCT_E220BIS                  0x1004
  97 #define HUAWEI_PRODUCT_E1401                    0x1401
  98 #define HUAWEI_PRODUCT_E1402                    0x1402
  99 #define HUAWEI_PRODUCT_E1403                    0x1403
 100 #define HUAWEI_PRODUCT_E1404                    0x1404
 101 #define HUAWEI_PRODUCT_E1405                    0x1405
 102 #define HUAWEI_PRODUCT_E1406                    0x1406
 103 #define HUAWEI_PRODUCT_E1407                    0x1407
 104 #define HUAWEI_PRODUCT_E1408                    0x1408
 105 #define HUAWEI_PRODUCT_E1409                    0x1409
 106 #define HUAWEI_PRODUCT_E140A                    0x140A
 107 #define HUAWEI_PRODUCT_E140B                    0x140B
 108 #define HUAWEI_PRODUCT_E140C                    0x140C
 109 #define HUAWEI_PRODUCT_E140D                    0x140D
 110 #define HUAWEI_PRODUCT_E140E                    0x140E
 111 #define HUAWEI_PRODUCT_E140F                    0x140F
 112 #define HUAWEI_PRODUCT_E1410                    0x1410
 113 #define HUAWEI_PRODUCT_E1411                    0x1411
 114 #define HUAWEI_PRODUCT_E1412                    0x1412
 115 #define HUAWEI_PRODUCT_E1413                    0x1413
 116 #define HUAWEI_PRODUCT_E1414                    0x1414
 117 #define HUAWEI_PRODUCT_E1415                    0x1415
 118 #define HUAWEI_PRODUCT_E1416                    0x1416
 119 #define HUAWEI_PRODUCT_E1417                    0x1417
 120 #define HUAWEI_PRODUCT_E1418                    0x1418
 121 #define HUAWEI_PRODUCT_E1419                    0x1419
 122 #define HUAWEI_PRODUCT_E141A                    0x141A
 123 #define HUAWEI_PRODUCT_E141B                    0x141B
 124 #define HUAWEI_PRODUCT_E141C                    0x141C
 125 #define HUAWEI_PRODUCT_E141D                    0x141D
 126 #define HUAWEI_PRODUCT_E141E                    0x141E
 127 #define HUAWEI_PRODUCT_E141F                    0x141F
 128 #define HUAWEI_PRODUCT_E1420                    0x1420
 129 #define HUAWEI_PRODUCT_E1421                    0x1421
 130 #define HUAWEI_PRODUCT_E1422                    0x1422
 131 #define HUAWEI_PRODUCT_E1423                    0x1423
 132 #define HUAWEI_PRODUCT_E1424                    0x1424
 133 #define HUAWEI_PRODUCT_E1425                    0x1425
 134 #define HUAWEI_PRODUCT_E1426                    0x1426
 135 #define HUAWEI_PRODUCT_E1427                    0x1427
 136 #define HUAWEI_PRODUCT_E1428                    0x1428
 137 #define HUAWEI_PRODUCT_E1429                    0x1429
 138 #define HUAWEI_PRODUCT_E142A                    0x142A
 139 #define HUAWEI_PRODUCT_E142B                    0x142B
 140 #define HUAWEI_PRODUCT_E142C                    0x142C
 141 #define HUAWEI_PRODUCT_E142D                    0x142D
 142 #define HUAWEI_PRODUCT_E142E                    0x142E
 143 #define HUAWEI_PRODUCT_E142F                    0x142F
 144 #define HUAWEI_PRODUCT_E1430                    0x1430
 145 #define HUAWEI_PRODUCT_E1431                    0x1431
 146 #define HUAWEI_PRODUCT_E1432                    0x1432
 147 #define HUAWEI_PRODUCT_E1433                    0x1433
 148 #define HUAWEI_PRODUCT_E1434                    0x1434
 149 #define HUAWEI_PRODUCT_E1435                    0x1435
 150 #define HUAWEI_PRODUCT_E1436                    0x1436
 151 #define HUAWEI_PRODUCT_E1437                    0x1437
 152 #define HUAWEI_PRODUCT_E1438                    0x1438
 153 #define HUAWEI_PRODUCT_E1439                    0x1439
 154 #define HUAWEI_PRODUCT_E143A                    0x143A
 155 #define HUAWEI_PRODUCT_E143B                    0x143B
 156 #define HUAWEI_PRODUCT_E143C                    0x143C
 157 #define HUAWEI_PRODUCT_E143D                    0x143D
 158 #define HUAWEI_PRODUCT_E143E                    0x143E
 159 #define HUAWEI_PRODUCT_E143F                    0x143F
 160
 161 #define NOVATELWIRELESS_VENDOR_ID               0x1410
 162
 163 /* YISO PRODUCTS */
 164
 165 #define YISO_VENDOR_ID                          0x0EAB
 166 #define YISO_PRODUCT_U893                       0xC893
 167
 168 /* MERLIN EVDO PRODUCTS */
 169 #define NOVATELWIRELESS_PRODUCT_V640            0x1100
 170 #define NOVATELWIRELESS_PRODUCT_V620            0x1110
 171 #define NOVATELWIRELESS_PRODUCT_V740            0x1120
 172 #define NOVATELWIRELESS_PRODUCT_V720            0x1130
 173
 174 /* MERLIN HSDPA/HSPA PRODUCTS */
 175 #define NOVATELWIRELESS_PRODUCT_U730            0x1400
 176 #define NOVATELWIRELESS_PRODUCT_U740            0x1410
 177 #define NOVATELWIRELESS_PRODUCT_U870            0x1420
 178 #define NOVATELWIRELESS_PRODUCT_XU870           0x1430
 179 #define NOVATELWIRELESS_PRODUCT_X950D           0x1450
 180
 181 /* EXPEDITE PRODUCTS */
 182 #define NOVATELWIRELESS_PRODUCT_EV620           0x2100
 183 #define NOVATELWIRELESS_PRODUCT_ES720           0x2110
 184 #define NOVATELWIRELESS_PRODUCT_E725            0x2120
 185 #define NOVATELWIRELESS_PRODUCT_ES620           0x2130
 186 #define NOVATELWIRELESS_PRODUCT_EU730           0x2400
 187 #define NOVATELWIRELESS_PRODUCT_EU740           0x2410
 188 #define NOVATELWIRELESS_PRODUCT_EU870D          0x2420
 189
 190 /* OVATION PRODUCTS */
 191 #define NOVATELWIRELESS_PRODUCT_MC727           0x4100
 192 #define NOVATELWIRELESS_PRODUCT_MC950D          0x4400
 193
 194 /* FUTURE NOVATEL PRODUCTS */
 195 #define NOVATELWIRELESS_PRODUCT_EVDO_1          0x6000
 196 #define NOVATELWIRELESS_PRODUCT_HSPA_1          0x7000
 197 #define NOVATELWIRELESS_PRODUCT_EMBEDDED_1      0x8000
 198 #define NOVATELWIRELESS_PRODUCT_GLOBAL_1        0x9000
 199 #define NOVATELWIRELESS_PRODUCT_EVDO_2          0x6001
 200 #define NOVATELWIRELESS_PRODUCT_HSPA_2          0x7001
 201 #define NOVATELWIRELESS_PRODUCT_EMBEDDED_2      0x8001
 202 #define NOVATELWIRELESS_PRODUCT_GLOBAL_2        0x9001
 203
 204 /* AMOI PRODUCTS */
 205 #define AMOI_VENDOR_ID                          0x1614
 206 #define AMOI_PRODUCT_H01                        0x0800
 207 #define AMOI_PRODUCT_H01A                       0x7002
 208 #define AMOI_PRODUCT_H02                        0x0802
 209
 210 #define DELL_VENDOR_ID                          0x413C
 211
 212 #define KYOCERA_VENDOR_ID                       0x0c88
 213 #define KYOCERA_PRODUCT_KPC650                  0x17da
 214 #define KYOCERA_PRODUCT_KPC680                  0x180a
 215
 216 #define ANYDATA_VENDOR_ID                       0x16d5
 217 #define ANYDATA_PRODUCT_ADU_620UW               0x6202
 218 #define ANYDATA_PRODUCT_ADU_E100A               0x6501
 219 #define ANYDATA_PRODUCT_ADU_500A                0x6502
 220
 221 #define AXESSTEL_VENDOR_ID                      0x1726
 222 #define AXESSTEL_PRODUCT_MV110H                 0x1000
 223
 224 #define ONDA_VENDOR_ID                          0x19d2
 225 #define ONDA_PRODUCT_MSA501HS                   0x0001
 226 #define ONDA_PRODUCT_ET502HS                    0x0002
 227 #define ONDA_PRODUCT_MT503HS                    0x0200
 228
 229 #define BANDRICH_VENDOR_ID                      0x1A8D
 230 #define BANDRICH_PRODUCT_C100_1                 0x1002
 231 #define BANDRICH_PRODUCT_C100_2                 0x1003
 232 #define BANDRICH_PRODUCT_1004                   0x1004
 233 #define BANDRICH_PRODUCT_1005                   0x1005
 234 #define BANDRICH_PRODUCT_1006                   0x1006
 235 #define BANDRICH_PRODUCT_1007                   0x1007
 236 #define BANDRICH_PRODUCT_1008                   0x1008
 237 #define BANDRICH_PRODUCT_1009                   0x1009
 238 #define BANDRICH_PRODUCT_100A                   0x100a
 239
 240 #define BANDRICH_PRODUCT_100B                   0x100b
 241 #define BANDRICH_PRODUCT_100C                   0x100c
 242 #define BANDRICH_PRODUCT_100D                   0x100d
 243 #define BANDRICH_PRODUCT_100E                   0x100e
 244
 245 #define BANDRICH_PRODUCT_100F                   0x100f
 246 #define BANDRICH_PRODUCT_1010                   0x1010
 247 #define BANDRICH_PRODUCT_1011                   0x1011
 248 #define BANDRICH_PRODUCT_1012                   0x1012
 249
 250 #define AMOI_VENDOR_ID                  0x1614
 251 #define AMOI_PRODUCT_9508                       0x0800
 252
 253 #define QUALCOMM_VENDOR_ID                      0x05C6
 254
 255 #define MAXON_VENDOR_ID                         0x16d8
 256
 257 #define TELIT_VENDOR_ID                         0x1bc7
 258 #define TELIT_PRODUCT_UC864E                    0x1003
 259
 260 /* ZTE PRODUCTS */
 261 #define ZTE_VENDOR_ID                           0x19d2
 262 #define ZTE_PRODUCT_MF628                       0x0015
 263 #define ZTE_PRODUCT_MF626                       0x0031
 264 #define ZTE_PRODUCT_CDMA_TECH                   0xfffe
 265
 266 /* Ericsson products */
 267 #define ERICSSON_VENDOR_ID                      0x0bdb
 268 #define ERICSSON_PRODUCT_F3507G                 0x1900
 269
 270 /* Pantech products */
 271 #define PANTECH_VENDOR_ID                       0x106c
 272 #define PANTECH_PRODUCT_PC5740                  0x3701
 273 #define PANTECH_PRODUCT_PC5750                  0x3702  /* PX-500 */
 274 #define PANTECH_PRODUCT_UM150                   0x3711
 275
 276 static struct usb_device_id option_ids[] = {
 277         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
 278         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
 279         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
 280         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD) },
 281         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD_LIGHT) },
 282         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS) },
 283         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_LIGHT) },
 284         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD) },
 285         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT) },
 286         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
 287         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA_BUS) },
 288         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER) },
 289         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER_BUS) },
 290         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX_READY) },
 291         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_LIGHT) },
 292         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_GT) },
 293         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_EX) },
 294         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_MODEM) },
 295         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_MODEM) },
 296         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM) },
 297         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_LITE) },
 298         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) },
 299         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) },
 300         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) },
 301         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600, 0xff, 0xff, 0xff) },
 302         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220, 0xff, 0xff, 0xff) },
 303         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS, 0xff, 0xff, 0xff) },
 304         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1401, 0xff, 0xff, 0xff) },
 305         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1402, 0xff, 0xff, 0xff) },
 306         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1403, 0xff, 0xff, 0xff) },
 307         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1404, 0xff, 0xff, 0xff) },
 308         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1405, 0xff, 0xff, 0xff) },
 309         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1406, 0xff, 0xff, 0xff) },
 310         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1407, 0xff, 0xff, 0xff) },
 311         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1408, 0xff, 0xff, 0xff) },
 312         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1409, 0xff, 0xff, 0xff) },
 313         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140A, 0xff, 0xff, 0xff) },
 314         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140B, 0xff, 0xff, 0xff) },
 315         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140C, 0xff, 0xff, 0xff) },
 316         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140D, 0xff, 0xff, 0xff) },
 317         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140E, 0xff, 0xff, 0xff) },
 318         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140F, 0xff, 0xff, 0xff) },
 319         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1410, 0xff, 0xff, 0xff) },
 320         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1411, 0xff, 0xff, 0xff) },
 321         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1412, 0xff, 0xff, 0xff) },
 322         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1413, 0xff, 0xff, 0xff) },
 323         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1414, 0xff, 0xff, 0xff) },
 324         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1415, 0xff, 0xff, 0xff) },
 325         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1416, 0xff, 0xff, 0xff) },
 326         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1417, 0xff, 0xff, 0xff) },
 327         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1418, 0xff, 0xff, 0xff) },
 328         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1419, 0xff, 0xff, 0xff) },
 329         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141A, 0xff, 0xff, 0xff) },
 330         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141B, 0xff, 0xff, 0xff) },
 331         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141C, 0xff, 0xff, 0xff) },
 332         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141D, 0xff, 0xff, 0xff) },
 333         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141E, 0xff, 0xff, 0xff) },
 334         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141F, 0xff, 0xff, 0xff) },
 335         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1420, 0xff, 0xff, 0xff) },
 336         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1421, 0xff, 0xff, 0xff) },
 337         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1422, 0xff, 0xff, 0xff) },
 338         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1423, 0xff, 0xff, 0xff) },
 339         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1424, 0xff, 0xff, 0xff) },
 340         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1425, 0xff, 0xff, 0xff) },
 341         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1426, 0xff, 0xff, 0xff) },
 342         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1427, 0xff, 0xff, 0xff) },
 343         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1428, 0xff, 0xff, 0xff) },
 344         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1429, 0xff, 0xff, 0xff) },
 345         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142A, 0xff, 0xff, 0xff) },
 346         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142B, 0xff, 0xff, 0xff) },
 347         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142C, 0xff, 0xff, 0xff) },
 348         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142D, 0xff, 0xff, 0xff) },
 349         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142E, 0xff, 0xff, 0xff) },
 350         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142F, 0xff, 0xff, 0xff) },
 351         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1430, 0xff, 0xff, 0xff) },
 352         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1431, 0xff, 0xff, 0xff) },
 353         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1432, 0xff, 0xff, 0xff) },
 354         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1433, 0xff, 0xff, 0xff) },
 355         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1434, 0xff, 0xff, 0xff) },
 356         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1435, 0xff, 0xff, 0xff) },
 357         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1436, 0xff, 0xff, 0xff) },
 358         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1437, 0xff, 0xff, 0xff) },
 359         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1438, 0xff, 0xff, 0xff) },
 360         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1439, 0xff, 0xff, 0xff) },
 361         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143A, 0xff, 0xff, 0xff) },
 362         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143B, 0xff, 0xff, 0xff) },
 363         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143C, 0xff, 0xff, 0xff) },
 364         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143D, 0xff, 0xff, 0xff) },
 365         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143E, 0xff, 0xff, 0xff) },
 366         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143F, 0xff, 0xff, 0xff) },
 367         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_9508) },
 368         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */
 369         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */
 370         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) }, /* Novatel Merlin EX720/V740/X720 */
 371         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V720) }, /* Novatel Merlin V720/S720/PC720 */
 372         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U730) }, /* Novatel U730/U740 (VF version) */
 373         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U740) }, /* Novatel U740 */
 374         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U870) }, /* Novatel U870 */
 375         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_XU870) }, /* Novatel Merlin XU870 HSDPA/3G */
 376         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_X950D) }, /* Novatel X950D */
 377         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EV620) }, /* Novatel EV620/ES620 CDMA/EV-DO */
 378         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES720) }, /* Novatel ES620/ES720/U720/USB720 */
 379         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E725) }, /* Novatel E725/E726 */
 380         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES620) }, /* Novatel Merlin ES620 SM Bus */
 381         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU730) }, /* Novatel EU730 and Vodafone EU740 */
 382         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU740) }, /* Novatel non-Vodafone EU740 */
 383         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) }, /* Novatel EU850D/EU860D/EU870D */
 384         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) }, /* Novatel MC930D/MC950D */
 385         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) }, /* Novatel MC727/U727/USB727 */
 386         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_1) }, /* Novatel EVDO product */
 387         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_1) }, /* Novatel HSPA product */
 388         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_1) }, /* Novatel Embedded product */
 389         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_1) }, /* Novatel Global product */
 390         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_2) }, /* Novatel EVDO product */
 391         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_2) }, /* Novatel HSPA product */
 392         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_2) }, /* Novatel Embedded product */
 393         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_2) }, /* Novatel Global product */
 394
 395         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01) },
 396         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01A) },
 397         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H02) },
 398
 399         { USB_DEVICE(DELL_VENDOR_ID, 0x8114) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */
 400         { USB_DEVICE(DELL_VENDOR_ID, 0x8115) }, /* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 401         { USB_DEVICE(DELL_VENDOR_ID, 0x8116) }, /* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 402         { USB_DEVICE(DELL_VENDOR_ID, 0x8117) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO ExpressCard == Novatel Merlin XV620 CDMA/EV-DO */
 403         { USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard == Novatel Merlin XU870 HSDPA/3G */
 404         { USB_DEVICE(DELL_VENDOR_ID, 0x8128) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite E720 CDMA/EV-DO */
 405         { USB_DEVICE(DELL_VENDOR_ID, 0x8129) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite ET620 CDMA/EV-DO */
 406         { USB_DEVICE(DELL_VENDOR_ID, 0x8133) }, /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
 407         { USB_DEVICE(DELL_VENDOR_ID, 0x8136) }, /* Dell Wireless HSDPA 5520 == Novatel Expedite EU860D */
 408         { USB_DEVICE(DELL_VENDOR_ID, 0x8137) }, /* Dell Wireless HSDPA 5520 */
 409         { USB_DEVICE(DELL_VENDOR_ID, 0x8138) }, /* Dell Wireless 5520 Voda I Mobile Broadband (3G HSDPA) Minicard */
 410         { USB_DEVICE(DELL_VENDOR_ID, 0x8147) }, /* Dell Wireless 5530 Mobile Broadband (3G HSPA) Mini-Card */
 411         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },   /* ADU-E100, ADU-310 */
 412         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
 413         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
 414         { USB_DEVICE(AXESSTEL_VENDOR_ID, AXESSTEL_PRODUCT_MV110H) },
 415         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_MSA501HS) },
 416         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_ET502HS) },
 417         { USB_DEVICE(ONDA_VENDOR_ID, 0x0003) },
 418         { USB_DEVICE(ONDA_VENDOR_ID, 0x0004) },
 419         { USB_DEVICE(ONDA_VENDOR_ID, 0x0005) },
 420         { USB_DEVICE(ONDA_VENDOR_ID, 0x0006) },
 421         { USB_DEVICE(ONDA_VENDOR_ID, 0x0007) },
 422         { USB_DEVICE(ONDA_VENDOR_ID, 0x0008) },
 423         { USB_DEVICE(ONDA_VENDOR_ID, 0x0009) },
 424         { USB_DEVICE(ONDA_VENDOR_ID, 0x000a) },
 425         { USB_DEVICE(ONDA_VENDOR_ID, 0x000b) },
 426         { USB_DEVICE(ONDA_VENDOR_ID, 0x000c) },
 427         { USB_DEVICE(ONDA_VENDOR_ID, 0x000d) },
 428         { USB_DEVICE(ONDA_VENDOR_ID, 0x000e) },
 429         { USB_DEVICE(ONDA_VENDOR_ID, 0x000f) },
 430         { USB_DEVICE(ONDA_VENDOR_ID, 0x0010) },
 431         { USB_DEVICE(ONDA_VENDOR_ID, 0x0011) },
 432         { USB_DEVICE(ONDA_VENDOR_ID, 0x0012) },
 433         { USB_DEVICE(ONDA_VENDOR_ID, 0x0013) },
 434         { USB_DEVICE(ONDA_VENDOR_ID, 0x0014) },
 435         { USB_DEVICE(ONDA_VENDOR_ID, 0x0015) },
 436         { USB_DEVICE(ONDA_VENDOR_ID, 0x0016) },
 437         { USB_DEVICE(ONDA_VENDOR_ID, 0x0017) },
 438         { USB_DEVICE(ONDA_VENDOR_ID, 0x0018) },
 439         { USB_DEVICE(ONDA_VENDOR_ID, 0x0019) },
 440         { USB_DEVICE(ONDA_VENDOR_ID, 0x0020) },
 441         { USB_DEVICE(ONDA_VENDOR_ID, 0x0021) },
 442         { USB_DEVICE(ONDA_VENDOR_ID, 0x0022) },
 443         { USB_DEVICE(ONDA_VENDOR_ID, 0x0023) },
 444         { USB_DEVICE(ONDA_VENDOR_ID, 0x0024) },
 445         { USB_DEVICE(ONDA_VENDOR_ID, 0x0025) },
 446         { USB_DEVICE(ONDA_VENDOR_ID, 0x0026) },
 447         { USB_DEVICE(ONDA_VENDOR_ID, 0x0027) },
 448         { USB_DEVICE(ONDA_VENDOR_ID, 0x0028) },
 449         { USB_DEVICE(ONDA_VENDOR_ID, 0x0029) },
 450         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_MT503HS) },
 451         { USB_DEVICE(YISO_VENDOR_ID, YISO_PRODUCT_U893) },
 452         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
 453         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
 454         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1004) },
 455         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1005) },
 456         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1006) },
 457         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1007) },
 458         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1008) },
 459         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1009) },
 460         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100A) },
 461         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100B) },
 462         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100C) },
 463         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100D) },
 464         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100E) },
 465         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100F) },
 466         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1010) },
 467         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1011) },
 468         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1012) },
 469         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC650) },
 470         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
 471         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */
 472         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
 473         { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */
 474         { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864E) },
 475         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF626) },
 476         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF628) },
 477         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH) },
 478         { USB_DEVICE(ERICSSON_VENDOR_ID, ERICSSON_PRODUCT_F3507G) },
 479         { USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_PC5740) },
 480         { USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_PC5750) },
 481         { USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_UM150) },
 482         { } /* Terminating entry */
 483 };
 484 MODULE_DEVICE_TABLE(usb, option_ids);
 485
 486 static struct usb_driver option_driver = {
 487         .name       = "option",
 488         .probe      = usb_serial_probe,
 489         .disconnect = usb_serial_disconnect,
 490         .id_table   = option_ids,
 491         .no_dynamic_id =        1,
 492 };
 493
 494 /* The card has three separate interfaces, which the serial driver
 495  * recognizes separately, thus num_port=1.
 496  */
 497
 498 static struct usb_serial_driver option_1port_device = {
 499         .driver = {
 500                 .owner =        THIS_MODULE,
 501                 .name =         "option1",
 502         },
 503         .description       = "GSM modem (1-port)",
 504         .usb_driver        = &option_driver,
 505         .id_table          = option_ids,
 506         .num_ports         = 1,
 507         .open              = option_open,
 508         .close             = option_close,
 509         .write             = option_write,
 510         .write_room        = option_write_room,
 511         .chars_in_buffer   = option_chars_in_buffer,
 512         .set_termios       = option_set_termios,
 513         .tiocmget          = option_tiocmget,
 514         .tiocmset          = option_tiocmset,
 515         .attach            = option_startup,
 516         .shutdown          = option_shutdown,
 517         .read_int_callback = option_instat_callback,
 518 };
 519
 520 static int debug;
 521
 522 /* per port private data */
 523
 524 #define N_IN_URB 4
 525 #define N_OUT_URB 1
 526 #define IN_BUFLEN 4096
 527 #define OUT_BUFLEN 128
 528
 529 struct option_port_private {
 530         /* Input endpoints and buffer for this port */
 531         struct urb *in_urbs[N_IN_URB];
 532         u8 *in_buffer[N_IN_URB];
 533         /* Output endpoints and buffer for this port */
 534         struct urb *out_urbs[N_OUT_URB];
 535         u8 *out_buffer[N_OUT_URB];
 536         unsigned long out_busy;         /* Bit vector of URBs in use */
 537
 538         /* Settings for the port */
 539         int rts_state;  /* Handshaking pins (outputs) */
 540         int dtr_state;
 541         int cts_state;  /* Handshaking pins (inputs) */
 542         int dsr_state;
 543         int dcd_state;
 544         int ri_state;
 545
 546         unsigned long tx_start_time[N_OUT_URB];
 547 };
 548
 549 /* Functions used by new usb-serial code. */
 550 static int __init option_init(void)
 551 {
 552         int retval;
 553         retval = usb_serial_register(&option_1port_device);
 554         if (retval)
 555                 goto failed_1port_device_register;
 556         retval = usb_register(&option_driver);
 557         if (retval)
 558                 goto failed_driver_register;
 559
 560         printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
 561                DRIVER_DESC "\n");
 562
 563         return 0;
 564
 565 failed_driver_register:
 566         usb_serial_deregister(&option_1port_device);
 567 failed_1port_device_register:
 568         return retval;
 569 }
 570
 571 static void __exit option_exit(void)
 572 {
 573         usb_deregister(&option_driver);
 574         usb_serial_deregister(&option_1port_device);
 575 }
 576
 577 module_init(option_init);
 578 module_exit(option_exit);
 579
 580 static void option_set_termios(struct tty_struct *tty,
 581                 struct usb_serial_port *port, struct ktermios *old_termios)
 582 {
 583         dbg("%s", __func__);
 584         /* Doesn't support option setting */
 585         tty_termios_copy_hw(tty->termios, old_termios);
 586         option_send_setup(tty, port);
 587 }
 588
 589 static int option_tiocmget(struct tty_struct *tty, struct file *file)
 590 {
 591         struct usb_serial_port *port = tty->driver_data;
 592         unsigned int value;
 593         struct option_port_private *portdata;
 594
 595         portdata = usb_get_serial_port_data(port);
 596
 597         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
 598                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
 599                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
 600                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
 601                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
 602                 ((portdata->ri_state) ? TIOCM_RNG : 0);
 603
 604         return value;
 605 }
 606
 607 static int option_tiocmset(struct tty_struct *tty, struct file *file,
 608                         unsigned int set, unsigned int clear)
 609 {
 610         struct usb_serial_port *port = tty->driver_data;
 611         struct option_port_private *portdata;
 612
 613         portdata = usb_get_serial_port_data(port);
 614
 615         /* FIXME: what locks portdata fields ? */
 616         if (set & TIOCM_RTS)
 617                 portdata->rts_state = 1;
 618         if (set & TIOCM_DTR)
 619                 portdata->dtr_state = 1;
 620
 621         if (clear & TIOCM_RTS)
 622                 portdata->rts_state = 0;
 623         if (clear & TIOCM_DTR)
 624                 portdata->dtr_state = 0;
 625         return option_send_setup(tty, port);
 626 }
 627
 628 /* Write */
 629 static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
 630                         const unsigned char *buf, int count)
 631 {
 632         struct option_port_private *portdata;
 633         int i;
 634         int left, todo;
 635         struct urb *this_urb = NULL; /* spurious */
 636         int err;
 637
 638         portdata = usb_get_serial_port_data(port);
 639
 640         dbg("%s: write (%d chars)", __func__, count);
 641
 642         i = 0;
 643         left = count;
 644         for (i = 0; left > 0 && i < N_OUT_URB; i++) {
 645                 todo = left;
 646                 if (todo > OUT_BUFLEN)
 647                         todo = OUT_BUFLEN;
 648
 649                 this_urb = portdata->out_urbs[i];
 650                 if (test_and_set_bit(i, &portdata->out_busy)) {
 651                         if (time_before(jiffies,
 652                                         portdata->tx_start_time[i] + 10 * HZ))
 653                                 continue;
 654                         usb_unlink_urb(this_urb);
 655                         continue;
 656                 }
 657                 if (this_urb->status != 0)
 658                         dbg("usb_write %p failed (err=%d)",
 659                                 this_urb, this_urb->status);
 660
 661                 dbg("%s: endpoint %d buf %d", __func__,
 662                         usb_pipeendpoint(this_urb->pipe), i);
 663
 664                 /* send the data */
 665                 memcpy(this_urb->transfer_buffer, buf, todo);
 666                 this_urb->transfer_buffer_length = todo;
 667
 668                 this_urb->dev = port->serial->dev;
 669                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 670                 if (err) {
 671                         dbg("usb_submit_urb %p (write bulk) failed "
 672                                 "(%d, has %d)", this_urb,
 673                                 err, this_urb->status);
 674                         clear_bit(i, &portdata->out_busy);
 675                         continue;
 676                 }
 677                 portdata->tx_start_time[i] = jiffies;
 678                 buf += todo;
 679                 left -= todo;
 680         }
 681
 682         count -= left;
 683         dbg("%s: wrote (did %d)", __func__, count);
 684         return count;
 685 }
 686
 687 static void option_indat_callback(struct urb *urb)
 688 {
 689         int err;
 690         int endpoint;
 691         struct usb_serial_port *port;
 692         struct tty_struct *tty;
 693         unsigned char *data = urb->transfer_buffer;
 694         int status = urb->status;
 695
 696         dbg("%s: %p", __func__, urb);
 697
 698         endpoint = usb_pipeendpoint(urb->pipe);
 699         port =  urb->context;
 700
 701         if (status) {
 702                 dbg("%s: nonzero status: %d on endpoint %02x.",
 703                     __func__, status, endpoint);
 704         } else {
 705                 tty = tty_port_tty_get(&port->port);
 706                 if (urb->actual_length) {
 707                         tty_buffer_request_room(tty, urb->actual_length);
 708                         tty_insert_flip_string(tty, data, urb->actual_length);
 709                         tty_flip_buffer_push(tty);
 710                 } else
 711                         dbg("%s: empty read urb received", __func__);
 712                 tty_kref_put(tty);
 713
 714                 /* Resubmit urb so we continue receiving */
 715                 if (port->port.count && status != -ESHUTDOWN) {
 716                         err = usb_submit_urb(urb, GFP_ATOMIC);
 717                         if (err)
 718                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 719                                         "(%d)", __func__, err);
 720                 }
 721         }
 722         return;
 723 }
 724
 725 static void option_outdat_callback(struct urb *urb)
 726 {
 727         struct usb_serial_port *port;
 728         struct option_port_private *portdata;
 729         int i;
 730
 731         dbg("%s", __func__);
 732
 733         port =  urb->context;
 734
 735         usb_serial_port_softint(port);
 736
 737         portdata = usb_get_serial_port_data(port);
 738         for (i = 0; i < N_OUT_URB; ++i) {
 739                 if (portdata->out_urbs[i] == urb) {
 740                         smp_mb__before_clear_bit();
 741                         clear_bit(i, &portdata->out_busy);
 742                         break;
 743                 }
 744         }
 745 }
 746
 747 static void option_instat_callback(struct urb *urb)
 748 {
 749         int err;
 750         int status = urb->status;
 751         struct usb_serial_port *port =  urb->context;
 752         struct option_port_private *portdata = usb_get_serial_port_data(port);
 753         struct usb_serial *serial = port->serial;
 754
 755         dbg("%s", __func__);
 756         dbg("%s: urb %p port %p has data %p", __func__, urb, port, portdata);
 757
 758         if (status == 0) {
 759                 struct usb_ctrlrequest *req_pkt =
 760                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 761
 762                 if (!req_pkt) {
 763                         dbg("%s: NULL req_pkt\n", __func__);
 764                         return;
 765                 }
 766                 if ((req_pkt->bRequestType == 0xA1) &&
 767                                 (req_pkt->bRequest == 0x20)) {
 768                         int old_dcd_state;
 769                         unsigned char signals = *((unsigned char *)
 770                                         urb->transfer_buffer +
 771                                         sizeof(struct usb_ctrlrequest));
 772
 773                         dbg("%s: signal x%x", __func__, signals);
 774
 775                         old_dcd_state = portdata->dcd_state;
 776                         portdata->cts_state = 1;
 777                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 778                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 779                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 780
 781                         if (old_dcd_state && !portdata->dcd_state) {
 782                                 struct tty_struct *tty =
 783                                                 tty_port_tty_get(&port->port);
 784                                 if (tty && !C_CLOCAL(tty))
 785                                         tty_hangup(tty);
 786                                 tty_kref_put(tty);
 787                         }
 788                 } else {
 789                         dbg("%s: type %x req %x", __func__,
 790                                 req_pkt->bRequestType, req_pkt->bRequest);
 791                 }
 792         } else
 793                 dbg("%s: error %d", __func__, status);
 794
 795         /* Resubmit urb so we continue receiving IRQ data */
 796         if (status != -ESHUTDOWN) {
 797                 urb->dev = serial->dev;
 798                 err = usb_submit_urb(urb, GFP_ATOMIC);
 799                 if (err)
 800                         dbg("%s: resubmit intr urb failed. (%d)",
 801                                 __func__, err);
 802         }
 803 }
 804
 805 static int option_write_room(struct tty_struct *tty)
 806 {
 807         struct usb_serial_port *port = tty->driver_data;
 808         struct option_port_private *portdata;
 809         int i;
 810         int data_len = 0;
 811         struct urb *this_urb;
 812
 813         portdata = usb_get_serial_port_data(port);
 814
 815
 816         for (i = 0; i < N_OUT_URB; i++) {
 817                 this_urb = portdata->out_urbs[i];
 818                 if (this_urb && !test_bit(i, &portdata->out_busy))
 819                         data_len += OUT_BUFLEN;
 820         }
 821
 822         dbg("%s: %d", __func__, data_len);
 823         return data_len;
 824 }
 825
 826 static int option_chars_in_buffer(struct tty_struct *tty)
 827 {
 828         struct usb_serial_port *port = tty->driver_data;
 829         struct option_port_private *portdata;
 830         int i;
 831         int data_len = 0;
 832         struct urb *this_urb;
 833
 834         portdata = usb_get_serial_port_data(port);
 835
 836         for (i = 0; i < N_OUT_URB; i++) {
 837                 this_urb = portdata->out_urbs[i];
 838                 /* FIXME: This locking is insufficient as this_urb may
 839                    go unused during the test */
 840                 if (this_urb && test_bit(i, &portdata->out_busy))
 841                         data_len += this_urb->transfer_buffer_length;
 842         }
 843         dbg("%s: %d", __func__, data_len);
 844         return data_len;
 845 }
 846
 847 static int option_open(struct tty_struct *tty,
 848                         struct usb_serial_port *port, struct file *filp)
 849 {
 850         struct option_port_private *portdata;
 851         struct usb_serial *serial = port->serial;
 852         int i, err;
 853         struct urb *urb;
 854
 855         portdata = usb_get_serial_port_data(port);
 856
 857         dbg("%s", __func__);
 858
 859         /* Set some sane defaults */
 860         portdata->rts_state = 1;
 861         portdata->dtr_state = 1;
 862
 863         /* Reset low level data toggle and start reading from endpoints */
 864         for (i = 0; i < N_IN_URB; i++) {
 865                 urb = portdata->in_urbs[i];
 866                 if (!urb)
 867                         continue;
 868                 if (urb->dev != serial->dev) {
 869                         dbg("%s: dev %p != %p", __func__,
 870                                 urb->dev, serial->dev);
 871                         continue;
 872                 }
 873
 874                 /*
 875                  * make sure endpoint data toggle is synchronized with the
 876                  * device
 877                  */
 878                 usb_clear_halt(urb->dev, urb->pipe);
 879
 880                 err = usb_submit_urb(urb, GFP_KERNEL);
 881                 if (err) {
 882                         dbg("%s: submit urb %d failed (%d) %d",
 883                                 __func__, i, err,
 884                                 urb->transfer_buffer_length);
 885                 }
 886         }
 887
 888         /* Reset low level data toggle on out endpoints */
 889         for (i = 0; i < N_OUT_URB; i++) {
 890                 urb = portdata->out_urbs[i];
 891                 if (!urb)
 892                         continue;
 893                 urb->dev = serial->dev;
 894                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 895                                 usb_pipeout(urb->pipe), 0); */
 896         }
 897
 898         if (tty)
 899                 tty->low_latency = 1;
 900
 901         option_send_setup(tty, port);
 902
 903         return 0;
 904 }
 905
 906 static void option_close(struct tty_struct *tty,
 907                         struct usb_serial_port *port, struct file *filp)
 908 {
 909         int i;
 910         struct usb_serial *serial = port->serial;
 911         struct option_port_private *portdata;
 912
 913         dbg("%s", __func__);
 914         portdata = usb_get_serial_port_data(port);
 915
 916         portdata->rts_state = 0;
 917         portdata->dtr_state = 0;
 918
 919         if (serial->dev) {
 920                 mutex_lock(&serial->disc_mutex);
 921                 if (!serial->disconnected)
 922                         option_send_setup(tty, port);
 923                 mutex_unlock(&serial->disc_mutex);
 924
 925                 /* Stop reading/writing urbs */
 926                 for (i = 0; i < N_IN_URB; i++)
 927                         usb_kill_urb(portdata->in_urbs[i]);
 928                 for (i = 0; i < N_OUT_URB; i++)
 929                         usb_kill_urb(portdata->out_urbs[i]);
 930         }
 931         tty_port_tty_set(&port->port, NULL);
 932 }
 933
 934 /* Helper functions used by option_setup_urbs */
 935 static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
 936                 int dir, void *ctx, char *buf, int len,
 937                 void (*callback)(struct urb *))
 938 {
 939         struct urb *urb;
 940
 941         if (endpoint == -1)
 942                 return NULL;            /* endpoint not needed */
 943
 944         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 945         if (urb == NULL) {
 946                 dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
 947                 return NULL;
 948         }
 949
 950                 /* Fill URB using supplied data. */
 951         usb_fill_bulk_urb(urb, serial->dev,
 952                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 953                       buf, len, callback, ctx);
 954
 955         return urb;
 956 }
 957
 958 /* Setup urbs */
 959 static void option_setup_urbs(struct usb_serial *serial)
 960 {
 961         int i, j;
 962         struct usb_serial_port *port;
 963         struct option_port_private *portdata;
 964
 965         dbg("%s", __func__);
 966
 967         for (i = 0; i < serial->num_ports; i++) {
 968                 port = serial->port[i];
 969                 portdata = usb_get_serial_port_data(port);
 970
 971                 /* Do indat endpoints first */
 972                 for (j = 0; j < N_IN_URB; ++j) {
 973                         portdata->in_urbs[j] = option_setup_urb(serial,
 974                                         port->bulk_in_endpointAddress,
 975                                         USB_DIR_IN, port,
 976                                         portdata->in_buffer[j],
 977                                         IN_BUFLEN, option_indat_callback);
 978                 }
 979
 980                 /* outdat endpoints */
 981                 for (j = 0; j < N_OUT_URB; ++j) {
 982                         portdata->out_urbs[j] = option_setup_urb(serial,
 983                                         port->bulk_out_endpointAddress,
 984                                         USB_DIR_OUT, port,
 985                                         portdata->out_buffer[j],
 986                                         OUT_BUFLEN, option_outdat_callback);
 987                 }
 988         }
 989 }
 990
 991
 992 /** send RTS/DTR state to the port.
 993  *
 994  * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
 995  * CDC.
 996 */
 997 static int option_send_setup(struct tty_struct *tty,
 998                                                 struct usb_serial_port *port)
 999 {
1000         struct usb_serial *serial = port->serial;
1001         struct option_port_private *portdata;
1002         int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
1003         dbg("%s", __func__);
1004
1005         portdata = usb_get_serial_port_data(port);
1006
1007         if (tty) {
1008                 int val = 0;
1009                 if (portdata->dtr_state)
1010                         val |= 0x01;
1011                 if (portdata->rts_state)
1012                         val |= 0x02;
1013
1014                 return usb_control_msg(serial->dev,
1015                         usb_rcvctrlpipe(serial->dev, 0),
1016                         0x22, 0x21, val, ifNum, NULL, 0, USB_CTRL_SET_TIMEOUT);
1017         }
1018         return 0;
1019 }
1020
1021 static int option_startup(struct usb_serial *serial)
1022 {
1023         int i, j, err;
1024         struct usb_serial_port *port;
1025         struct option_port_private *portdata;
1026         u8 *buffer;
1027
1028         dbg("%s", __func__);
1029
1030         /* Now setup per port private data */
1031         for (i = 0; i < serial->num_ports; i++) {
1032                 port = serial->port[i];
1033                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
1034                 if (!portdata) {
1035                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
1036                                         __func__, i);
1037                         return 1;
1038                 }
1039
1040                 for (j = 0; j < N_IN_URB; j++) {
1041                         buffer = (u8 *)__get_free_page(GFP_KERNEL);
1042                         if (!buffer)
1043                                 goto bail_out_error;
1044                         portdata->in_buffer[j] = buffer;
1045                 }
1046
1047                 for (j = 0; j < N_OUT_URB; j++) {
1048                         buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
1049                         if (!buffer)
1050                                 goto bail_out_error2;
1051                         portdata->out_buffer[j] = buffer;
1052                 }
1053
1054                 usb_set_serial_port_data(port, portdata);
1055
1056                 if (!port->interrupt_in_urb)
1057                         continue;
1058                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
1059                 if (err)
1060                         dbg("%s: submit irq_in urb failed %d",
1061                                 __func__, err);
1062         }
1063         option_setup_urbs(serial);
1064         return 0;
1065
1066 bail_out_error2:
1067         for (j = 0; j < N_OUT_URB; j++)
1068                 kfree(portdata->out_buffer[j]);
1069 bail_out_error:
1070         for (j = 0; j < N_IN_URB; j++)
1071                 if (portdata->in_buffer[j])
1072                         free_page((unsigned long)portdata->in_buffer[j]);
1073         kfree(portdata);
1074         return 1;
1075 }
1076
1077 static void option_shutdown(struct usb_serial *serial)
1078 {
1079         int i, j;
1080         struct usb_serial_port *port;
1081         struct option_port_private *portdata;
1082
1083         dbg("%s", __func__);
1084
1085         /* Stop reading/writing urbs */
1086         for (i = 0; i < serial->num_ports; ++i) {
1087                 port = serial->port[i];
1088                 portdata = usb_get_serial_port_data(port);
1089                 for (j = 0; j < N_IN_URB; j++)
1090                         usb_kill_urb(portdata->in_urbs[j]);
1091                 for (j = 0; j < N_OUT_URB; j++)
1092                         usb_kill_urb(portdata->out_urbs[j]);
1093         }
1094
1095         /* Now free them */
1096         for (i = 0; i < serial->num_ports; ++i) {
1097                 port = serial->port[i];
1098                 portdata = usb_get_serial_port_data(port);
1099
1100                 for (j = 0; j < N_IN_URB; j++) {
1101                         if (portdata->in_urbs[j]) {
1102                                 usb_free_urb(portdata->in_urbs[j]);
1103                                 free_page((unsigned long)
1104                                         portdata->in_buffer[j]);
1105                                 portdata->in_urbs[j] = NULL;
1106                         }
1107                 }
1108                 for (j = 0; j < N_OUT_URB; j++) {
1109                         if (portdata->out_urbs[j]) {
1110                                 usb_free_urb(portdata->out_urbs[j]);
1111                                 kfree(portdata->out_buffer[j]);
1112                                 portdata->out_urbs[j] = NULL;
1113                         }
1114                 }
1115         }
1116
1117         /* Now free per port private data */
1118         for (i = 0; i < serial->num_ports; i++) {
1119                 port = serial->port[i];
1120                 kfree(usb_get_serial_port_data(port));
1121         }
1122 }
1123
1124 MODULE_AUTHOR(DRIVER_AUTHOR);
1125 MODULE_DESCRIPTION(DRIVER_DESC);
1126 MODULE_VERSION(DRIVER_VERSION);
1127 MODULE_LICENSE("GPL");
1128
1129 module_param(debug, bool, S_IRUGO | S_IWUSR);
1130 MODULE_PARM_DESC(debug, "Debug messages");