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 QUANTA_VENDOR_ID                        0x0408
 162 #define QUANTA_PRODUCT_Q101                     0xEA02
 163 #define QUANTA_PRODUCT_Q111                     0xEA03
 164 #define QUANTA_PRODUCT_GLX                      0xEA04
 165 #define QUANTA_PRODUCT_GKE                      0xEA05
 166 #define QUANTA_PRODUCT_GLE                      0xEA06
 167
 168 #define NOVATELWIRELESS_VENDOR_ID               0x1410
 169
 170 /* YISO PRODUCTS */
 171
 172 #define YISO_VENDOR_ID                          0x0EAB
 173 #define YISO_PRODUCT_U893                       0xC893
 174
 175 /* MERLIN EVDO PRODUCTS */
 176 #define NOVATELWIRELESS_PRODUCT_V640            0x1100
 177 #define NOVATELWIRELESS_PRODUCT_V620            0x1110
 178 #define NOVATELWIRELESS_PRODUCT_V740            0x1120
 179 #define NOVATELWIRELESS_PRODUCT_V720            0x1130
 180
 181 /* MERLIN HSDPA/HSPA PRODUCTS */
 182 #define NOVATELWIRELESS_PRODUCT_U730            0x1400
 183 #define NOVATELWIRELESS_PRODUCT_U740            0x1410
 184 #define NOVATELWIRELESS_PRODUCT_U870            0x1420
 185 #define NOVATELWIRELESS_PRODUCT_XU870           0x1430
 186 #define NOVATELWIRELESS_PRODUCT_X950D           0x1450
 187
 188 /* EXPEDITE PRODUCTS */
 189 #define NOVATELWIRELESS_PRODUCT_EV620           0x2100
 190 #define NOVATELWIRELESS_PRODUCT_ES720           0x2110
 191 #define NOVATELWIRELESS_PRODUCT_E725            0x2120
 192 #define NOVATELWIRELESS_PRODUCT_ES620           0x2130
 193 #define NOVATELWIRELESS_PRODUCT_EU730           0x2400
 194 #define NOVATELWIRELESS_PRODUCT_EU740           0x2410
 195 #define NOVATELWIRELESS_PRODUCT_EU870D          0x2420
 196
 197 /* OVATION PRODUCTS */
 198 #define NOVATELWIRELESS_PRODUCT_MC727           0x4100
 199 #define NOVATELWIRELESS_PRODUCT_MC950D          0x4400
 200
 201 /* FUTURE NOVATEL PRODUCTS */
 202 #define NOVATELWIRELESS_PRODUCT_EVDO_1          0x6000
 203 #define NOVATELWIRELESS_PRODUCT_HSPA_1          0x7000
 204 #define NOVATELWIRELESS_PRODUCT_EMBEDDED_1      0x8000
 205 #define NOVATELWIRELESS_PRODUCT_GLOBAL_1        0x9000
 206 #define NOVATELWIRELESS_PRODUCT_EVDO_2          0x6001
 207 #define NOVATELWIRELESS_PRODUCT_HSPA_2          0x7001
 208 #define NOVATELWIRELESS_PRODUCT_EMBEDDED_2      0x8001
 209 #define NOVATELWIRELESS_PRODUCT_GLOBAL_2        0x9001
 210
 211 /* AMOI PRODUCTS */
 212 #define AMOI_VENDOR_ID                          0x1614
 213 #define AMOI_PRODUCT_H01                        0x0800
 214 #define AMOI_PRODUCT_H01A                       0x7002
 215 #define AMOI_PRODUCT_H02                        0x0802
 216
 217 #define DELL_VENDOR_ID                          0x413C
 218
 219 #define KYOCERA_VENDOR_ID                       0x0c88
 220 #define KYOCERA_PRODUCT_KPC650                  0x17da
 221 #define KYOCERA_PRODUCT_KPC680                  0x180a
 222
 223 #define ANYDATA_VENDOR_ID                       0x16d5
 224 #define ANYDATA_PRODUCT_ADU_620UW               0x6202
 225 #define ANYDATA_PRODUCT_ADU_E100A               0x6501
 226 #define ANYDATA_PRODUCT_ADU_500A                0x6502
 227
 228 #define AXESSTEL_VENDOR_ID                      0x1726
 229 #define AXESSTEL_PRODUCT_MV110H                 0x1000
 230
 231 #define ONDA_VENDOR_ID                          0x19d2
 232 #define ONDA_PRODUCT_MSA501HS                   0x0001
 233 #define ONDA_PRODUCT_ET502HS                    0x0002
 234 #define ONDA_PRODUCT_MT503HS                    0x2000
 235
 236 #define BANDRICH_VENDOR_ID                      0x1A8D
 237 #define BANDRICH_PRODUCT_C100_1                 0x1002
 238 #define BANDRICH_PRODUCT_C100_2                 0x1003
 239 #define BANDRICH_PRODUCT_1004                   0x1004
 240 #define BANDRICH_PRODUCT_1005                   0x1005
 241 #define BANDRICH_PRODUCT_1006                   0x1006
 242 #define BANDRICH_PRODUCT_1007                   0x1007
 243 #define BANDRICH_PRODUCT_1008                   0x1008
 244 #define BANDRICH_PRODUCT_1009                   0x1009
 245 #define BANDRICH_PRODUCT_100A                   0x100a
 246
 247 #define BANDRICH_PRODUCT_100B                   0x100b
 248 #define BANDRICH_PRODUCT_100C                   0x100c
 249 #define BANDRICH_PRODUCT_100D                   0x100d
 250 #define BANDRICH_PRODUCT_100E                   0x100e
 251
 252 #define BANDRICH_PRODUCT_100F                   0x100f
 253 #define BANDRICH_PRODUCT_1010                   0x1010
 254 #define BANDRICH_PRODUCT_1011                   0x1011
 255 #define BANDRICH_PRODUCT_1012                   0x1012
 256
 257 #define AMOI_VENDOR_ID                  0x1614
 258 #define AMOI_PRODUCT_9508                       0x0800
 259
 260 #define QUALCOMM_VENDOR_ID                      0x05C6
 261
 262 #define MAXON_VENDOR_ID                         0x16d8
 263
 264 #define TELIT_VENDOR_ID                         0x1bc7
 265 #define TELIT_PRODUCT_UC864E                    0x1003
 266
 267 /* ZTE PRODUCTS */
 268 #define ZTE_VENDOR_ID                           0x19d2
 269 #define ZTE_PRODUCT_MF628                       0x0015
 270 #define ZTE_PRODUCT_MF626                       0x0031
 271 #define ZTE_PRODUCT_CDMA_TECH                   0xfffe
 272
 273 /* Ericsson products */
 274 #define ERICSSON_VENDOR_ID                      0x0bdb
 275 #define ERICSSON_PRODUCT_F3507G                 0x1900
 276
 277 /* Pantech products */
 278 #define PANTECH_VENDOR_ID                       0x106c
 279 #define PANTECH_PRODUCT_PC5740                  0x3701
 280 #define PANTECH_PRODUCT_PC5750                  0x3702  /* PX-500 */
 281 #define PANTECH_PRODUCT_UM150                   0x3711
 282
 283 static struct usb_device_id option_ids[] = {
 284         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
 285         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
 286         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
 287         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD) },
 288         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD_LIGHT) },
 289         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS) },
 290         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_LIGHT) },
 291         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD) },
 292         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT) },
 293         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
 294         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA_BUS) },
 295         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER) },
 296         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER_BUS) },
 297         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX_READY) },
 298         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_LIGHT) },
 299         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_GT) },
 300         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_EX) },
 301         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_MODEM) },
 302         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_MODEM) },
 303         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM) },
 304         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_LITE) },
 305         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) },
 306         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) },
 307         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) },
 308         { USB_DEVICE(QUANTA_VENDOR_ID, QUANTA_PRODUCT_Q101) },
 309         { USB_DEVICE(QUANTA_VENDOR_ID, QUANTA_PRODUCT_Q111) },
 310         { USB_DEVICE(QUANTA_VENDOR_ID, QUANTA_PRODUCT_GLX) },
 311         { USB_DEVICE(QUANTA_VENDOR_ID, QUANTA_PRODUCT_GKE) },
 312         { USB_DEVICE(QUANTA_VENDOR_ID, QUANTA_PRODUCT_GLE) },
 313         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600, 0xff, 0xff, 0xff) },
 314         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220, 0xff, 0xff, 0xff) },
 315         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS, 0xff, 0xff, 0xff) },
 316         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1401, 0xff, 0xff, 0xff) },
 317         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1402, 0xff, 0xff, 0xff) },
 318         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1403, 0xff, 0xff, 0xff) },
 319         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1404, 0xff, 0xff, 0xff) },
 320         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1405, 0xff, 0xff, 0xff) },
 321         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1406, 0xff, 0xff, 0xff) },
 322         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1407, 0xff, 0xff, 0xff) },
 323         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1408, 0xff, 0xff, 0xff) },
 324         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1409, 0xff, 0xff, 0xff) },
 325         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140A, 0xff, 0xff, 0xff) },
 326         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140B, 0xff, 0xff, 0xff) },
 327         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140C, 0xff, 0xff, 0xff) },
 328         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140D, 0xff, 0xff, 0xff) },
 329         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140E, 0xff, 0xff, 0xff) },
 330         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140F, 0xff, 0xff, 0xff) },
 331         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1410, 0xff, 0xff, 0xff) },
 332         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1411, 0xff, 0xff, 0xff) },
 333         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1412, 0xff, 0xff, 0xff) },
 334         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1413, 0xff, 0xff, 0xff) },
 335         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1414, 0xff, 0xff, 0xff) },
 336         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1415, 0xff, 0xff, 0xff) },
 337         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1416, 0xff, 0xff, 0xff) },
 338         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1417, 0xff, 0xff, 0xff) },
 339         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1418, 0xff, 0xff, 0xff) },
 340         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1419, 0xff, 0xff, 0xff) },
 341         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141A, 0xff, 0xff, 0xff) },
 342         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141B, 0xff, 0xff, 0xff) },
 343         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141C, 0xff, 0xff, 0xff) },
 344         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141D, 0xff, 0xff, 0xff) },
 345         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141E, 0xff, 0xff, 0xff) },
 346         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141F, 0xff, 0xff, 0xff) },
 347         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1420, 0xff, 0xff, 0xff) },
 348         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1421, 0xff, 0xff, 0xff) },
 349         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1422, 0xff, 0xff, 0xff) },
 350         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1423, 0xff, 0xff, 0xff) },
 351         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1424, 0xff, 0xff, 0xff) },
 352         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1425, 0xff, 0xff, 0xff) },
 353         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1426, 0xff, 0xff, 0xff) },
 354         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1427, 0xff, 0xff, 0xff) },
 355         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1428, 0xff, 0xff, 0xff) },
 356         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1429, 0xff, 0xff, 0xff) },
 357         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142A, 0xff, 0xff, 0xff) },
 358         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142B, 0xff, 0xff, 0xff) },
 359         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142C, 0xff, 0xff, 0xff) },
 360         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142D, 0xff, 0xff, 0xff) },
 361         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142E, 0xff, 0xff, 0xff) },
 362         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142F, 0xff, 0xff, 0xff) },
 363         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1430, 0xff, 0xff, 0xff) },
 364         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1431, 0xff, 0xff, 0xff) },
 365         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1432, 0xff, 0xff, 0xff) },
 366         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1433, 0xff, 0xff, 0xff) },
 367         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1434, 0xff, 0xff, 0xff) },
 368         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1435, 0xff, 0xff, 0xff) },
 369         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1436, 0xff, 0xff, 0xff) },
 370         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1437, 0xff, 0xff, 0xff) },
 371         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1438, 0xff, 0xff, 0xff) },
 372         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1439, 0xff, 0xff, 0xff) },
 373         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143A, 0xff, 0xff, 0xff) },
 374         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143B, 0xff, 0xff, 0xff) },
 375         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143C, 0xff, 0xff, 0xff) },
 376         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143D, 0xff, 0xff, 0xff) },
 377         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143E, 0xff, 0xff, 0xff) },
 378         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143F, 0xff, 0xff, 0xff) },
 379         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_9508) },
 380         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */
 381         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */
 382         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) }, /* Novatel Merlin EX720/V740/X720 */
 383         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V720) }, /* Novatel Merlin V720/S720/PC720 */
 384         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U730) }, /* Novatel U730/U740 (VF version) */
 385         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U740) }, /* Novatel U740 */
 386         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U870) }, /* Novatel U870 */
 387         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_XU870) }, /* Novatel Merlin XU870 HSDPA/3G */
 388         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_X950D) }, /* Novatel X950D */
 389         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EV620) }, /* Novatel EV620/ES620 CDMA/EV-DO */
 390         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES720) }, /* Novatel ES620/ES720/U720/USB720 */
 391         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E725) }, /* Novatel E725/E726 */
 392         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES620) }, /* Novatel Merlin ES620 SM Bus */
 393         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU730) }, /* Novatel EU730 and Vodafone EU740 */
 394         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU740) }, /* Novatel non-Vodafone EU740 */
 395         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) }, /* Novatel EU850D/EU860D/EU870D */
 396         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) }, /* Novatel MC930D/MC950D */
 397         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) }, /* Novatel MC727/U727/USB727 */
 398         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_1) }, /* Novatel EVDO product */
 399         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_1) }, /* Novatel HSPA product */
 400         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_1) }, /* Novatel Embedded product */
 401         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_1) }, /* Novatel Global product */
 402         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_2) }, /* Novatel EVDO product */
 403         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_2) }, /* Novatel HSPA product */
 404         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_2) }, /* Novatel Embedded product */
 405         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_2) }, /* Novatel Global product */
 406
 407         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01) },
 408         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01A) },
 409         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H02) },
 410
 411         { USB_DEVICE(DELL_VENDOR_ID, 0x8114) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */
 412         { USB_DEVICE(DELL_VENDOR_ID, 0x8115) }, /* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 413         { USB_DEVICE(DELL_VENDOR_ID, 0x8116) }, /* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 414         { USB_DEVICE(DELL_VENDOR_ID, 0x8117) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO ExpressCard == Novatel Merlin XV620 CDMA/EV-DO */
 415         { USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard == Novatel Merlin XU870 HSDPA/3G */
 416         { USB_DEVICE(DELL_VENDOR_ID, 0x8128) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite E720 CDMA/EV-DO */
 417         { USB_DEVICE(DELL_VENDOR_ID, 0x8129) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite ET620 CDMA/EV-DO */
 418         { USB_DEVICE(DELL_VENDOR_ID, 0x8133) }, /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
 419         { USB_DEVICE(DELL_VENDOR_ID, 0x8136) }, /* Dell Wireless HSDPA 5520 == Novatel Expedite EU860D */
 420         { USB_DEVICE(DELL_VENDOR_ID, 0x8137) }, /* Dell Wireless HSDPA 5520 */
 421         { USB_DEVICE(DELL_VENDOR_ID, 0x8138) }, /* Dell Wireless 5520 Voda I Mobile Broadband (3G HSDPA) Minicard */
 422         { USB_DEVICE(DELL_VENDOR_ID, 0x8147) }, /* Dell Wireless 5530 Mobile Broadband (3G HSPA) Mini-Card */
 423         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },   /* ADU-E100, ADU-310 */
 424         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
 425         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
 426         { USB_DEVICE(AXESSTEL_VENDOR_ID, AXESSTEL_PRODUCT_MV110H) },
 427         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_MSA501HS) },
 428         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_ET502HS) },
 429         { USB_DEVICE(ONDA_VENDOR_ID, 0x0003) },
 430         { USB_DEVICE(ONDA_VENDOR_ID, 0x0004) },
 431         { USB_DEVICE(ONDA_VENDOR_ID, 0x0005) },
 432         { USB_DEVICE(ONDA_VENDOR_ID, 0x0006) },
 433         { USB_DEVICE(ONDA_VENDOR_ID, 0x0007) },
 434         { USB_DEVICE(ONDA_VENDOR_ID, 0x0008) },
 435         { USB_DEVICE(ONDA_VENDOR_ID, 0x0009) },
 436         { USB_DEVICE(ONDA_VENDOR_ID, 0x000a) },
 437         { USB_DEVICE(ONDA_VENDOR_ID, 0x000b) },
 438         { USB_DEVICE(ONDA_VENDOR_ID, 0x000c) },
 439         { USB_DEVICE(ONDA_VENDOR_ID, 0x000d) },
 440         { USB_DEVICE(ONDA_VENDOR_ID, 0x000e) },
 441         { USB_DEVICE(ONDA_VENDOR_ID, 0x000f) },
 442         { USB_DEVICE(ONDA_VENDOR_ID, 0x0010) },
 443         { USB_DEVICE(ONDA_VENDOR_ID, 0x0011) },
 444         { USB_DEVICE(ONDA_VENDOR_ID, 0x0012) },
 445         { USB_DEVICE(ONDA_VENDOR_ID, 0x0013) },
 446         { USB_DEVICE(ONDA_VENDOR_ID, 0x0014) },
 447         { USB_DEVICE(ONDA_VENDOR_ID, 0x0015) },
 448         { USB_DEVICE(ONDA_VENDOR_ID, 0x0016) },
 449         { USB_DEVICE(ONDA_VENDOR_ID, 0x0017) },
 450         { USB_DEVICE(ONDA_VENDOR_ID, 0x0018) },
 451         { USB_DEVICE(ONDA_VENDOR_ID, 0x0019) },
 452         { USB_DEVICE(ONDA_VENDOR_ID, 0x0020) },
 453         { USB_DEVICE(ONDA_VENDOR_ID, 0x0021) },
 454         { USB_DEVICE(ONDA_VENDOR_ID, 0x0022) },
 455         { USB_DEVICE(ONDA_VENDOR_ID, 0x0023) },
 456         { USB_DEVICE(ONDA_VENDOR_ID, 0x0024) },
 457         { USB_DEVICE(ONDA_VENDOR_ID, 0x0025) },
 458         { USB_DEVICE(ONDA_VENDOR_ID, 0x0026) },
 459         { USB_DEVICE(ONDA_VENDOR_ID, 0x0027) },
 460         { USB_DEVICE(ONDA_VENDOR_ID, 0x0028) },
 461         { USB_DEVICE(ONDA_VENDOR_ID, 0x0029) },
 462         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_MT503HS) },
 463         { USB_DEVICE(YISO_VENDOR_ID, YISO_PRODUCT_U893) },
 464         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
 465         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
 466         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1004) },
 467         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1005) },
 468         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1006) },
 469         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1007) },
 470         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1008) },
 471         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1009) },
 472         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100A) },
 473         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100B) },
 474         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100C) },
 475         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100D) },
 476         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100E) },
 477         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100F) },
 478         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1010) },
 479         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1011) },
 480         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1012) },
 481         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC650) },
 482         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
 483         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */
 484         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
 485         { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */
 486         { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864E) },
 487         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF626) },
 488         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF628) },
 489         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH) },
 490         { USB_DEVICE(ERICSSON_VENDOR_ID, ERICSSON_PRODUCT_F3507G) },
 491         { USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_PC5740) },
 492         { USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_PC5750) },
 493         { USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_UM150) },
 494         { } /* Terminating entry */
 495 };
 496 MODULE_DEVICE_TABLE(usb, option_ids);
 497
 498 static struct usb_driver option_driver = {
 499         .name       = "option",
 500         .probe      = usb_serial_probe,
 501         .disconnect = usb_serial_disconnect,
 502         .id_table   = option_ids,
 503         .no_dynamic_id =        1,
 504 };
 505
 506 /* The card has three separate interfaces, which the serial driver
 507  * recognizes separately, thus num_port=1.
 508  */
 509
 510 static struct usb_serial_driver option_1port_device = {
 511         .driver = {
 512                 .owner =        THIS_MODULE,
 513                 .name =         "option1",
 514         },
 515         .description       = "GSM modem (1-port)",
 516         .usb_driver        = &option_driver,
 517         .id_table          = option_ids,
 518         .num_ports         = 1,
 519         .open              = option_open,
 520         .close             = option_close,
 521         .write             = option_write,
 522         .write_room        = option_write_room,
 523         .chars_in_buffer   = option_chars_in_buffer,
 524         .set_termios       = option_set_termios,
 525         .tiocmget          = option_tiocmget,
 526         .tiocmset          = option_tiocmset,
 527         .attach            = option_startup,
 528         .shutdown          = option_shutdown,
 529         .read_int_callback = option_instat_callback,
 530 };
 531
 532 static int debug;
 533
 534 /* per port private data */
 535
 536 #define N_IN_URB 4
 537 #define N_OUT_URB 4
 538 #define IN_BUFLEN 4096
 539 #define OUT_BUFLEN 4096
 540
 541 struct option_port_private {
 542         /* Input endpoints and buffer for this port */
 543         struct urb *in_urbs[N_IN_URB];
 544         u8 *in_buffer[N_IN_URB];
 545         /* Output endpoints and buffer for this port */
 546         struct urb *out_urbs[N_OUT_URB];
 547         u8 *out_buffer[N_OUT_URB];
 548         unsigned long out_busy;         /* Bit vector of URBs in use */
 549
 550         /* Settings for the port */
 551         int rts_state;  /* Handshaking pins (outputs) */
 552         int dtr_state;
 553         int cts_state;  /* Handshaking pins (inputs) */
 554         int dsr_state;
 555         int dcd_state;
 556         int ri_state;
 557
 558         unsigned long tx_start_time[N_OUT_URB];
 559 };
 560
 561 /* Functions used by new usb-serial code. */
 562 static int __init option_init(void)
 563 {
 564         int retval;
 565         retval = usb_serial_register(&option_1port_device);
 566         if (retval)
 567                 goto failed_1port_device_register;
 568         retval = usb_register(&option_driver);
 569         if (retval)
 570                 goto failed_driver_register;
 571
 572         printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
 573                DRIVER_DESC "\n");
 574
 575         return 0;
 576
 577 failed_driver_register:
 578         usb_serial_deregister(&option_1port_device);
 579 failed_1port_device_register:
 580         return retval;
 581 }
 582
 583 static void __exit option_exit(void)
 584 {
 585         usb_deregister(&option_driver);
 586         usb_serial_deregister(&option_1port_device);
 587 }
 588
 589 module_init(option_init);
 590 module_exit(option_exit);
 591
 592 static void option_set_termios(struct tty_struct *tty,
 593                 struct usb_serial_port *port, struct ktermios *old_termios)
 594 {
 595         dbg("%s", __func__);
 596         /* Doesn't support option setting */
 597         tty_termios_copy_hw(tty->termios, old_termios);
 598         option_send_setup(tty, port);
 599 }
 600
 601 static int option_tiocmget(struct tty_struct *tty, struct file *file)
 602 {
 603         struct usb_serial_port *port = tty->driver_data;
 604         unsigned int value;
 605         struct option_port_private *portdata;
 606
 607         portdata = usb_get_serial_port_data(port);
 608
 609         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
 610                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
 611                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
 612                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
 613                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
 614                 ((portdata->ri_state) ? TIOCM_RNG : 0);
 615
 616         return value;
 617 }
 618
 619 static int option_tiocmset(struct tty_struct *tty, struct file *file,
 620                         unsigned int set, unsigned int clear)
 621 {
 622         struct usb_serial_port *port = tty->driver_data;
 623         struct option_port_private *portdata;
 624
 625         portdata = usb_get_serial_port_data(port);
 626
 627         /* FIXME: what locks portdata fields ? */
 628         if (set & TIOCM_RTS)
 629                 portdata->rts_state = 1;
 630         if (set & TIOCM_DTR)
 631                 portdata->dtr_state = 1;
 632
 633         if (clear & TIOCM_RTS)
 634                 portdata->rts_state = 0;
 635         if (clear & TIOCM_DTR)
 636                 portdata->dtr_state = 0;
 637         return option_send_setup(tty, port);
 638 }
 639
 640 /* Write */
 641 static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
 642                         const unsigned char *buf, int count)
 643 {
 644         struct option_port_private *portdata;
 645         int i;
 646         int left, todo;
 647         struct urb *this_urb = NULL; /* spurious */
 648         int err;
 649
 650         portdata = usb_get_serial_port_data(port);
 651
 652         dbg("%s: write (%d chars)", __func__, count);
 653
 654         i = 0;
 655         left = count;
 656         for (i = 0; left > 0 && i < N_OUT_URB; i++) {
 657                 todo = left;
 658                 if (todo > OUT_BUFLEN)
 659                         todo = OUT_BUFLEN;
 660
 661                 this_urb = portdata->out_urbs[i];
 662                 if (test_and_set_bit(i, &portdata->out_busy)) {
 663                         if (time_before(jiffies,
 664                                         portdata->tx_start_time[i] + 10 * HZ))
 665                                 continue;
 666                         usb_unlink_urb(this_urb);
 667                         continue;
 668                 }
 669                 dbg("%s: endpoint %d buf %d", __func__,
 670                         usb_pipeendpoint(this_urb->pipe), i);
 671
 672                 /* send the data */
 673                 memcpy(this_urb->transfer_buffer, buf, todo);
 674                 this_urb->transfer_buffer_length = todo;
 675
 676                 this_urb->dev = port->serial->dev;
 677                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 678                 if (err) {
 679                         dbg("usb_submit_urb %p (write bulk) failed "
 680                                 "(%d)", this_urb, err);
 681                         clear_bit(i, &portdata->out_busy);
 682                         continue;
 683                 }
 684                 portdata->tx_start_time[i] = jiffies;
 685                 buf += todo;
 686                 left -= todo;
 687         }
 688
 689         count -= left;
 690         dbg("%s: wrote (did %d)", __func__, count);
 691         return count;
 692 }
 693
 694 static void option_indat_callback(struct urb *urb)
 695 {
 696         int err;
 697         int endpoint;
 698         struct usb_serial_port *port;
 699         struct tty_struct *tty;
 700         unsigned char *data = urb->transfer_buffer;
 701         int status = urb->status;
 702
 703         dbg("%s: %p", __func__, urb);
 704
 705         endpoint = usb_pipeendpoint(urb->pipe);
 706         port =  urb->context;
 707
 708         if (status) {
 709                 dbg("%s: nonzero status: %d on endpoint %02x.",
 710                     __func__, status, endpoint);
 711         } else {
 712                 tty = tty_port_tty_get(&port->port);
 713                 if (urb->actual_length) {
 714                         tty_buffer_request_room(tty, urb->actual_length);
 715                         tty_insert_flip_string(tty, data, urb->actual_length);
 716                         tty_flip_buffer_push(tty);
 717                 } else
 718                         dbg("%s: empty read urb received", __func__);
 719                 tty_kref_put(tty);
 720
 721                 /* Resubmit urb so we continue receiving */
 722                 if (port->port.count && status != -ESHUTDOWN) {
 723                         err = usb_submit_urb(urb, GFP_ATOMIC);
 724                         if (err)
 725                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 726                                         "(%d)", __func__, err);
 727                 }
 728         }
 729         return;
 730 }
 731
 732 static void option_outdat_callback(struct urb *urb)
 733 {
 734         struct usb_serial_port *port;
 735         struct option_port_private *portdata;
 736         int i;
 737
 738         dbg("%s", __func__);
 739
 740         port =  urb->context;
 741
 742         usb_serial_port_softint(port);
 743
 744         portdata = usb_get_serial_port_data(port);
 745         for (i = 0; i < N_OUT_URB; ++i) {
 746                 if (portdata->out_urbs[i] == urb) {
 747                         smp_mb__before_clear_bit();
 748                         clear_bit(i, &portdata->out_busy);
 749                         break;
 750                 }
 751         }
 752 }
 753
 754 static void option_instat_callback(struct urb *urb)
 755 {
 756         int err;
 757         int status = urb->status;
 758         struct usb_serial_port *port =  urb->context;
 759         struct option_port_private *portdata = usb_get_serial_port_data(port);
 760         struct usb_serial *serial = port->serial;
 761
 762         dbg("%s", __func__);
 763         dbg("%s: urb %p port %p has data %p", __func__, urb, port, portdata);
 764
 765         if (status == 0) {
 766                 struct usb_ctrlrequest *req_pkt =
 767                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 768
 769                 if (!req_pkt) {
 770                         dbg("%s: NULL req_pkt\n", __func__);
 771                         return;
 772                 }
 773                 if ((req_pkt->bRequestType == 0xA1) &&
 774                                 (req_pkt->bRequest == 0x20)) {
 775                         int old_dcd_state;
 776                         unsigned char signals = *((unsigned char *)
 777                                         urb->transfer_buffer +
 778                                         sizeof(struct usb_ctrlrequest));
 779
 780                         dbg("%s: signal x%x", __func__, signals);
 781
 782                         old_dcd_state = portdata->dcd_state;
 783                         portdata->cts_state = 1;
 784                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 785                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 786                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 787
 788                         if (old_dcd_state && !portdata->dcd_state) {
 789                                 struct tty_struct *tty =
 790                                                 tty_port_tty_get(&port->port);
 791                                 if (tty && !C_CLOCAL(tty))
 792                                         tty_hangup(tty);
 793                                 tty_kref_put(tty);
 794                         }
 795                 } else {
 796                         dbg("%s: type %x req %x", __func__,
 797                                 req_pkt->bRequestType, req_pkt->bRequest);
 798                 }
 799         } else
 800                 dbg("%s: error %d", __func__, status);
 801
 802         /* Resubmit urb so we continue receiving IRQ data */
 803         if (status != -ESHUTDOWN) {
 804                 urb->dev = serial->dev;
 805                 err = usb_submit_urb(urb, GFP_ATOMIC);
 806                 if (err)
 807                         dbg("%s: resubmit intr urb failed. (%d)",
 808                                 __func__, err);
 809         }
 810 }
 811
 812 static int option_write_room(struct tty_struct *tty)
 813 {
 814         struct usb_serial_port *port = tty->driver_data;
 815         struct option_port_private *portdata;
 816         int i;
 817         int data_len = 0;
 818         struct urb *this_urb;
 819
 820         portdata = usb_get_serial_port_data(port);
 821
 822
 823         for (i = 0; i < N_OUT_URB; i++) {
 824                 this_urb = portdata->out_urbs[i];
 825                 if (this_urb && !test_bit(i, &portdata->out_busy))
 826                         data_len += OUT_BUFLEN;
 827         }
 828
 829         dbg("%s: %d", __func__, data_len);
 830         return data_len;
 831 }
 832
 833 static int option_chars_in_buffer(struct tty_struct *tty)
 834 {
 835         struct usb_serial_port *port = tty->driver_data;
 836         struct option_port_private *portdata;
 837         int i;
 838         int data_len = 0;
 839         struct urb *this_urb;
 840
 841         portdata = usb_get_serial_port_data(port);
 842
 843         for (i = 0; i < N_OUT_URB; i++) {
 844                 this_urb = portdata->out_urbs[i];
 845                 /* FIXME: This locking is insufficient as this_urb may
 846                    go unused during the test */
 847                 if (this_urb && test_bit(i, &portdata->out_busy))
 848                         data_len += this_urb->transfer_buffer_length;
 849         }
 850         dbg("%s: %d", __func__, data_len);
 851         return data_len;
 852 }
 853
 854 static int option_open(struct tty_struct *tty,
 855                         struct usb_serial_port *port, struct file *filp)
 856 {
 857         struct option_port_private *portdata;
 858         struct usb_serial *serial = port->serial;
 859         int i, err;
 860         struct urb *urb;
 861
 862         portdata = usb_get_serial_port_data(port);
 863
 864         dbg("%s", __func__);
 865
 866         /* Set some sane defaults */
 867         portdata->rts_state = 1;
 868         portdata->dtr_state = 1;
 869
 870         /* Reset low level data toggle and start reading from endpoints */
 871         for (i = 0; i < N_IN_URB; i++) {
 872                 urb = portdata->in_urbs[i];
 873                 if (!urb)
 874                         continue;
 875                 if (urb->dev != serial->dev) {
 876                         dbg("%s: dev %p != %p", __func__,
 877                                 urb->dev, serial->dev);
 878                         continue;
 879                 }
 880
 881                 /*
 882                  * make sure endpoint data toggle is synchronized with the
 883                  * device
 884                  */
 885                 usb_clear_halt(urb->dev, urb->pipe);
 886
 887                 err = usb_submit_urb(urb, GFP_KERNEL);
 888                 if (err) {
 889                         dbg("%s: submit urb %d failed (%d) %d",
 890                                 __func__, i, err,
 891                                 urb->transfer_buffer_length);
 892                 }
 893         }
 894
 895         /* Reset low level data toggle on out endpoints */
 896         for (i = 0; i < N_OUT_URB; i++) {
 897                 urb = portdata->out_urbs[i];
 898                 if (!urb)
 899                         continue;
 900                 urb->dev = serial->dev;
 901                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 902                                 usb_pipeout(urb->pipe), 0); */
 903         }
 904
 905         if (tty)
 906                 tty->low_latency = 1;
 907
 908         option_send_setup(tty, port);
 909
 910         return 0;
 911 }
 912
 913 static void option_close(struct tty_struct *tty,
 914                         struct usb_serial_port *port, struct file *filp)
 915 {
 916         int i;
 917         struct usb_serial *serial = port->serial;
 918         struct option_port_private *portdata;
 919
 920         dbg("%s", __func__);
 921         portdata = usb_get_serial_port_data(port);
 922
 923         portdata->rts_state = 0;
 924         portdata->dtr_state = 0;
 925
 926         if (serial->dev) {
 927                 mutex_lock(&serial->disc_mutex);
 928                 if (!serial->disconnected)
 929                         option_send_setup(tty, port);
 930                 mutex_unlock(&serial->disc_mutex);
 931
 932                 /* Stop reading/writing urbs */
 933                 for (i = 0; i < N_IN_URB; i++)
 934                         usb_kill_urb(portdata->in_urbs[i]);
 935                 for (i = 0; i < N_OUT_URB; i++)
 936                         usb_kill_urb(portdata->out_urbs[i]);
 937         }
 938         tty_port_tty_set(&port->port, NULL);
 939 }
 940
 941 /* Helper functions used by option_setup_urbs */
 942 static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
 943                 int dir, void *ctx, char *buf, int len,
 944                 void (*callback)(struct urb *))
 945 {
 946         struct urb *urb;
 947
 948         if (endpoint == -1)
 949                 return NULL;            /* endpoint not needed */
 950
 951         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 952         if (urb == NULL) {
 953                 dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
 954                 return NULL;
 955         }
 956
 957                 /* Fill URB using supplied data. */
 958         usb_fill_bulk_urb(urb, serial->dev,
 959                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 960                       buf, len, callback, ctx);
 961
 962         return urb;
 963 }
 964
 965 /* Setup urbs */
 966 static void option_setup_urbs(struct usb_serial *serial)
 967 {
 968         int i, j;
 969         struct usb_serial_port *port;
 970         struct option_port_private *portdata;
 971
 972         dbg("%s", __func__);
 973
 974         for (i = 0; i < serial->num_ports; i++) {
 975                 port = serial->port[i];
 976                 portdata = usb_get_serial_port_data(port);
 977
 978                 /* Do indat endpoints first */
 979                 for (j = 0; j < N_IN_URB; ++j) {
 980                         portdata->in_urbs[j] = option_setup_urb(serial,
 981                                         port->bulk_in_endpointAddress,
 982                                         USB_DIR_IN, port,
 983                                         portdata->in_buffer[j],
 984                                         IN_BUFLEN, option_indat_callback);
 985                 }
 986
 987                 /* outdat endpoints */
 988                 for (j = 0; j < N_OUT_URB; ++j) {
 989                         portdata->out_urbs[j] = option_setup_urb(serial,
 990                                         port->bulk_out_endpointAddress,
 991                                         USB_DIR_OUT, port,
 992                                         portdata->out_buffer[j],
 993                                         OUT_BUFLEN, option_outdat_callback);
 994                 }
 995         }
 996 }
 997
 998
 999 /** send RTS/DTR state to the port.
1000  *
1001  * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
1002  * CDC.
1003 */
1004 static int option_send_setup(struct tty_struct *tty,
1005                                                 struct usb_serial_port *port)
1006 {
1007         struct usb_serial *serial = port->serial;
1008         struct option_port_private *portdata;
1009         int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
1010         dbg("%s", __func__);
1011
1012         portdata = usb_get_serial_port_data(port);
1013
1014         if (tty) {
1015                 int val = 0;
1016                 if (portdata->dtr_state)
1017                         val |= 0x01;
1018                 if (portdata->rts_state)
1019                         val |= 0x02;
1020
1021                 return usb_control_msg(serial->dev,
1022                         usb_rcvctrlpipe(serial->dev, 0),
1023                         0x22, 0x21, val, ifNum, NULL, 0, USB_CTRL_SET_TIMEOUT);
1024         }
1025         return 0;
1026 }
1027
1028 static int option_startup(struct usb_serial *serial)
1029 {
1030         int i, j, err;
1031         struct usb_serial_port *port;
1032         struct option_port_private *portdata;
1033         u8 *buffer;
1034
1035         dbg("%s", __func__);
1036
1037         /* Now setup per port private data */
1038         for (i = 0; i < serial->num_ports; i++) {
1039                 port = serial->port[i];
1040                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
1041                 if (!portdata) {
1042                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
1043                                         __func__, i);
1044                         return 1;
1045                 }
1046
1047                 for (j = 0; j < N_IN_URB; j++) {
1048                         buffer = (u8 *)__get_free_page(GFP_KERNEL);
1049                         if (!buffer)
1050                                 goto bail_out_error;
1051                         portdata->in_buffer[j] = buffer;
1052                 }
1053
1054                 for (j = 0; j < N_OUT_URB; j++) {
1055                         buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
1056                         if (!buffer)
1057                                 goto bail_out_error2;
1058                         portdata->out_buffer[j] = buffer;
1059                 }
1060
1061                 usb_set_serial_port_data(port, portdata);
1062
1063                 if (!port->interrupt_in_urb)
1064                         continue;
1065                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
1066                 if (err)
1067                         dbg("%s: submit irq_in urb failed %d",
1068                                 __func__, err);
1069         }
1070         option_setup_urbs(serial);
1071         return 0;
1072
1073 bail_out_error2:
1074         for (j = 0; j < N_OUT_URB; j++)
1075                 kfree(portdata->out_buffer[j]);
1076 bail_out_error:
1077         for (j = 0; j < N_IN_URB; j++)
1078                 if (portdata->in_buffer[j])
1079                         free_page((unsigned long)portdata->in_buffer[j]);
1080         kfree(portdata);
1081         return 1;
1082 }
1083
1084 static void option_shutdown(struct usb_serial *serial)
1085 {
1086         int i, j;
1087         struct usb_serial_port *port;
1088         struct option_port_private *portdata;
1089
1090         dbg("%s", __func__);
1091
1092         /* Stop reading/writing urbs */
1093         for (i = 0; i < serial->num_ports; ++i) {
1094                 port = serial->port[i];
1095                 portdata = usb_get_serial_port_data(port);
1096                 for (j = 0; j < N_IN_URB; j++)
1097                         usb_kill_urb(portdata->in_urbs[j]);
1098                 for (j = 0; j < N_OUT_URB; j++)
1099                         usb_kill_urb(portdata->out_urbs[j]);
1100         }
1101
1102         /* Now free them */
1103         for (i = 0; i < serial->num_ports; ++i) {
1104                 port = serial->port[i];
1105                 portdata = usb_get_serial_port_data(port);
1106
1107                 for (j = 0; j < N_IN_URB; j++) {
1108                         if (portdata->in_urbs[j]) {
1109                                 usb_free_urb(portdata->in_urbs[j]);
1110                                 free_page((unsigned long)
1111                                         portdata->in_buffer[j]);
1112                                 portdata->in_urbs[j] = NULL;
1113                         }
1114                 }
1115                 for (j = 0; j < N_OUT_URB; j++) {
1116                         if (portdata->out_urbs[j]) {
1117                                 usb_free_urb(portdata->out_urbs[j]);
1118                                 kfree(portdata->out_buffer[j]);
1119                                 portdata->out_urbs[j] = NULL;
1120                         }
1121                 }
1122         }
1123
1124         /* Now free per port private data */
1125         for (i = 0; i < serial->num_ports; i++) {
1126                 port = serial->port[i];
1127                 kfree(usb_get_serial_port_data(port));
1128         }
1129 }
1130
1131 MODULE_AUTHOR(DRIVER_AUTHOR);
1132 MODULE_DESCRIPTION(DRIVER_DESC);
1133 MODULE_VERSION(DRIVER_VERSION);
1134 MODULE_LICENSE("GPL");
1135
1136 module_param(debug, bool, S_IRUGO | S_IWUSR);
1137 MODULE_PARM_DESC(debug, "Debug messages");