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                    0x2000
 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 4
 526 #define IN_BUFLEN 4096
 527 #define OUT_BUFLEN 4096
 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                 dbg("%s: endpoint %d buf %d", __func__,
 658                         usb_pipeendpoint(this_urb->pipe), i);
 659
 660                 /* send the data */
 661                 memcpy(this_urb->transfer_buffer, buf, todo);
 662                 this_urb->transfer_buffer_length = todo;
 663
 664                 this_urb->dev = port->serial->dev;
 665                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 666                 if (err) {
 667                         dbg("usb_submit_urb %p (write bulk) failed "
 668                                 "(%d)", this_urb, err);
 669                         clear_bit(i, &portdata->out_busy);
 670                         continue;
 671                 }
 672                 portdata->tx_start_time[i] = jiffies;
 673                 buf += todo;
 674                 left -= todo;
 675         }
 676
 677         count -= left;
 678         dbg("%s: wrote (did %d)", __func__, count);
 679         return count;
 680 }
 681
 682 static void option_indat_callback(struct urb *urb)
 683 {
 684         int err;
 685         int endpoint;
 686         struct usb_serial_port *port;
 687         struct tty_struct *tty;
 688         unsigned char *data = urb->transfer_buffer;
 689         int status = urb->status;
 690
 691         dbg("%s: %p", __func__, urb);
 692
 693         endpoint = usb_pipeendpoint(urb->pipe);
 694         port =  urb->context;
 695
 696         if (status) {
 697                 dbg("%s: nonzero status: %d on endpoint %02x.",
 698                     __func__, status, endpoint);
 699         } else {
 700                 tty = tty_port_tty_get(&port->port);
 701                 if (urb->actual_length) {
 702                         tty_buffer_request_room(tty, urb->actual_length);
 703                         tty_insert_flip_string(tty, data, urb->actual_length);
 704                         tty_flip_buffer_push(tty);
 705                 } else
 706                         dbg("%s: empty read urb received", __func__);
 707                 tty_kref_put(tty);
 708
 709                 /* Resubmit urb so we continue receiving */
 710                 if (port->port.count && status != -ESHUTDOWN) {
 711                         err = usb_submit_urb(urb, GFP_ATOMIC);
 712                         if (err)
 713                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 714                                         "(%d)", __func__, err);
 715                 }
 716         }
 717         return;
 718 }
 719
 720 static void option_outdat_callback(struct urb *urb)
 721 {
 722         struct usb_serial_port *port;
 723         struct option_port_private *portdata;
 724         int i;
 725
 726         dbg("%s", __func__);
 727
 728         port =  urb->context;
 729
 730         usb_serial_port_softint(port);
 731
 732         portdata = usb_get_serial_port_data(port);
 733         for (i = 0; i < N_OUT_URB; ++i) {
 734                 if (portdata->out_urbs[i] == urb) {
 735                         smp_mb__before_clear_bit();
 736                         clear_bit(i, &portdata->out_busy);
 737                         break;
 738                 }
 739         }
 740 }
 741
 742 static void option_instat_callback(struct urb *urb)
 743 {
 744         int err;
 745         int status = urb->status;
 746         struct usb_serial_port *port =  urb->context;
 747         struct option_port_private *portdata = usb_get_serial_port_data(port);
 748         struct usb_serial *serial = port->serial;
 749
 750         dbg("%s", __func__);
 751         dbg("%s: urb %p port %p has data %p", __func__, urb, port, portdata);
 752
 753         if (status == 0) {
 754                 struct usb_ctrlrequest *req_pkt =
 755                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 756
 757                 if (!req_pkt) {
 758                         dbg("%s: NULL req_pkt\n", __func__);
 759                         return;
 760                 }
 761                 if ((req_pkt->bRequestType == 0xA1) &&
 762                                 (req_pkt->bRequest == 0x20)) {
 763                         int old_dcd_state;
 764                         unsigned char signals = *((unsigned char *)
 765                                         urb->transfer_buffer +
 766                                         sizeof(struct usb_ctrlrequest));
 767
 768                         dbg("%s: signal x%x", __func__, signals);
 769
 770                         old_dcd_state = portdata->dcd_state;
 771                         portdata->cts_state = 1;
 772                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 773                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 774                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 775
 776                         if (old_dcd_state && !portdata->dcd_state) {
 777                                 struct tty_struct *tty =
 778                                                 tty_port_tty_get(&port->port);
 779                                 if (tty && !C_CLOCAL(tty))
 780                                         tty_hangup(tty);
 781                                 tty_kref_put(tty);
 782                         }
 783                 } else {
 784                         dbg("%s: type %x req %x", __func__,
 785                                 req_pkt->bRequestType, req_pkt->bRequest);
 786                 }
 787         } else
 788                 dbg("%s: error %d", __func__, status);
 789
 790         /* Resubmit urb so we continue receiving IRQ data */
 791         if (status != -ESHUTDOWN) {
 792                 urb->dev = serial->dev;
 793                 err = usb_submit_urb(urb, GFP_ATOMIC);
 794                 if (err)
 795                         dbg("%s: resubmit intr urb failed. (%d)",
 796                                 __func__, err);
 797         }
 798 }
 799
 800 static int option_write_room(struct tty_struct *tty)
 801 {
 802         struct usb_serial_port *port = tty->driver_data;
 803         struct option_port_private *portdata;
 804         int i;
 805         int data_len = 0;
 806         struct urb *this_urb;
 807
 808         portdata = usb_get_serial_port_data(port);
 809
 810
 811         for (i = 0; i < N_OUT_URB; i++) {
 812                 this_urb = portdata->out_urbs[i];
 813                 if (this_urb && !test_bit(i, &portdata->out_busy))
 814                         data_len += OUT_BUFLEN;
 815         }
 816
 817         dbg("%s: %d", __func__, data_len);
 818         return data_len;
 819 }
 820
 821 static int option_chars_in_buffer(struct tty_struct *tty)
 822 {
 823         struct usb_serial_port *port = tty->driver_data;
 824         struct option_port_private *portdata;
 825         int i;
 826         int data_len = 0;
 827         struct urb *this_urb;
 828
 829         portdata = usb_get_serial_port_data(port);
 830
 831         for (i = 0; i < N_OUT_URB; i++) {
 832                 this_urb = portdata->out_urbs[i];
 833                 /* FIXME: This locking is insufficient as this_urb may
 834                    go unused during the test */
 835                 if (this_urb && test_bit(i, &portdata->out_busy))
 836                         data_len += this_urb->transfer_buffer_length;
 837         }
 838         dbg("%s: %d", __func__, data_len);
 839         return data_len;
 840 }
 841
 842 static int option_open(struct tty_struct *tty,
 843                         struct usb_serial_port *port, struct file *filp)
 844 {
 845         struct option_port_private *portdata;
 846         struct usb_serial *serial = port->serial;
 847         int i, err;
 848         struct urb *urb;
 849
 850         portdata = usb_get_serial_port_data(port);
 851
 852         dbg("%s", __func__);
 853
 854         /* Set some sane defaults */
 855         portdata->rts_state = 1;
 856         portdata->dtr_state = 1;
 857
 858         /* Reset low level data toggle and start reading from endpoints */
 859         for (i = 0; i < N_IN_URB; i++) {
 860                 urb = portdata->in_urbs[i];
 861                 if (!urb)
 862                         continue;
 863                 if (urb->dev != serial->dev) {
 864                         dbg("%s: dev %p != %p", __func__,
 865                                 urb->dev, serial->dev);
 866                         continue;
 867                 }
 868
 869                 /*
 870                  * make sure endpoint data toggle is synchronized with the
 871                  * device
 872                  */
 873                 usb_clear_halt(urb->dev, urb->pipe);
 874
 875                 err = usb_submit_urb(urb, GFP_KERNEL);
 876                 if (err) {
 877                         dbg("%s: submit urb %d failed (%d) %d",
 878                                 __func__, i, err,
 879                                 urb->transfer_buffer_length);
 880                 }
 881         }
 882
 883         /* Reset low level data toggle on out endpoints */
 884         for (i = 0; i < N_OUT_URB; i++) {
 885                 urb = portdata->out_urbs[i];
 886                 if (!urb)
 887                         continue;
 888                 urb->dev = serial->dev;
 889                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 890                                 usb_pipeout(urb->pipe), 0); */
 891         }
 892
 893         if (tty)
 894                 tty->low_latency = 1;
 895
 896         option_send_setup(tty, port);
 897
 898         return 0;
 899 }
 900
 901 static void option_close(struct tty_struct *tty,
 902                         struct usb_serial_port *port, struct file *filp)
 903 {
 904         int i;
 905         struct usb_serial *serial = port->serial;
 906         struct option_port_private *portdata;
 907
 908         dbg("%s", __func__);
 909         portdata = usb_get_serial_port_data(port);
 910
 911         portdata->rts_state = 0;
 912         portdata->dtr_state = 0;
 913
 914         if (serial->dev) {
 915                 mutex_lock(&serial->disc_mutex);
 916                 if (!serial->disconnected)
 917                         option_send_setup(tty, port);
 918                 mutex_unlock(&serial->disc_mutex);
 919
 920                 /* Stop reading/writing urbs */
 921                 for (i = 0; i < N_IN_URB; i++)
 922                         usb_kill_urb(portdata->in_urbs[i]);
 923                 for (i = 0; i < N_OUT_URB; i++)
 924                         usb_kill_urb(portdata->out_urbs[i]);
 925         }
 926         tty_port_tty_set(&port->port, NULL);
 927 }
 928
 929 /* Helper functions used by option_setup_urbs */
 930 static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
 931                 int dir, void *ctx, char *buf, int len,
 932                 void (*callback)(struct urb *))
 933 {
 934         struct urb *urb;
 935
 936         if (endpoint == -1)
 937                 return NULL;            /* endpoint not needed */
 938
 939         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 940         if (urb == NULL) {
 941                 dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
 942                 return NULL;
 943         }
 944
 945                 /* Fill URB using supplied data. */
 946         usb_fill_bulk_urb(urb, serial->dev,
 947                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 948                       buf, len, callback, ctx);
 949
 950         return urb;
 951 }
 952
 953 /* Setup urbs */
 954 static void option_setup_urbs(struct usb_serial *serial)
 955 {
 956         int i, j;
 957         struct usb_serial_port *port;
 958         struct option_port_private *portdata;
 959
 960         dbg("%s", __func__);
 961
 962         for (i = 0; i < serial->num_ports; i++) {
 963                 port = serial->port[i];
 964                 portdata = usb_get_serial_port_data(port);
 965
 966                 /* Do indat endpoints first */
 967                 for (j = 0; j < N_IN_URB; ++j) {
 968                         portdata->in_urbs[j] = option_setup_urb(serial,
 969                                         port->bulk_in_endpointAddress,
 970                                         USB_DIR_IN, port,
 971                                         portdata->in_buffer[j],
 972                                         IN_BUFLEN, option_indat_callback);
 973                 }
 974
 975                 /* outdat endpoints */
 976                 for (j = 0; j < N_OUT_URB; ++j) {
 977                         portdata->out_urbs[j] = option_setup_urb(serial,
 978                                         port->bulk_out_endpointAddress,
 979                                         USB_DIR_OUT, port,
 980                                         portdata->out_buffer[j],
 981                                         OUT_BUFLEN, option_outdat_callback);
 982                 }
 983         }
 984 }
 985
 986
 987 /** send RTS/DTR state to the port.
 988  *
 989  * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
 990  * CDC.
 991 */
 992 static int option_send_setup(struct tty_struct *tty,
 993                                                 struct usb_serial_port *port)
 994 {
 995         struct usb_serial *serial = port->serial;
 996         struct option_port_private *portdata;
 997         int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
 998         dbg("%s", __func__);
 999
1000         portdata = usb_get_serial_port_data(port);
1001
1002         if (tty) {
1003                 int val = 0;
1004                 if (portdata->dtr_state)
1005                         val |= 0x01;
1006                 if (portdata->rts_state)
1007                         val |= 0x02;
1008
1009                 return usb_control_msg(serial->dev,
1010                         usb_rcvctrlpipe(serial->dev, 0),
1011                         0x22, 0x21, val, ifNum, NULL, 0, USB_CTRL_SET_TIMEOUT);
1012         }
1013         return 0;
1014 }
1015
1016 static int option_startup(struct usb_serial *serial)
1017 {
1018         int i, j, err;
1019         struct usb_serial_port *port;
1020         struct option_port_private *portdata;
1021         u8 *buffer;
1022
1023         dbg("%s", __func__);
1024
1025         /* Now setup per port private data */
1026         for (i = 0; i < serial->num_ports; i++) {
1027                 port = serial->port[i];
1028                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
1029                 if (!portdata) {
1030                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
1031                                         __func__, i);
1032                         return 1;
1033                 }
1034
1035                 for (j = 0; j < N_IN_URB; j++) {
1036                         buffer = (u8 *)__get_free_page(GFP_KERNEL);
1037                         if (!buffer)
1038                                 goto bail_out_error;
1039                         portdata->in_buffer[j] = buffer;
1040                 }
1041
1042                 for (j = 0; j < N_OUT_URB; j++) {
1043                         buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
1044                         if (!buffer)
1045                                 goto bail_out_error2;
1046                         portdata->out_buffer[j] = buffer;
1047                 }
1048
1049                 usb_set_serial_port_data(port, portdata);
1050
1051                 if (!port->interrupt_in_urb)
1052                         continue;
1053                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
1054                 if (err)
1055                         dbg("%s: submit irq_in urb failed %d",
1056                                 __func__, err);
1057         }
1058         option_setup_urbs(serial);
1059         return 0;
1060
1061 bail_out_error2:
1062         for (j = 0; j < N_OUT_URB; j++)
1063                 kfree(portdata->out_buffer[j]);
1064 bail_out_error:
1065         for (j = 0; j < N_IN_URB; j++)
1066                 if (portdata->in_buffer[j])
1067                         free_page((unsigned long)portdata->in_buffer[j]);
1068         kfree(portdata);
1069         return 1;
1070 }
1071
1072 static void option_shutdown(struct usb_serial *serial)
1073 {
1074         int i, j;
1075         struct usb_serial_port *port;
1076         struct option_port_private *portdata;
1077
1078         dbg("%s", __func__);
1079
1080         /* Stop reading/writing urbs */
1081         for (i = 0; i < serial->num_ports; ++i) {
1082                 port = serial->port[i];
1083                 portdata = usb_get_serial_port_data(port);
1084                 for (j = 0; j < N_IN_URB; j++)
1085                         usb_kill_urb(portdata->in_urbs[j]);
1086                 for (j = 0; j < N_OUT_URB; j++)
1087                         usb_kill_urb(portdata->out_urbs[j]);
1088         }
1089
1090         /* Now free them */
1091         for (i = 0; i < serial->num_ports; ++i) {
1092                 port = serial->port[i];
1093                 portdata = usb_get_serial_port_data(port);
1094
1095                 for (j = 0; j < N_IN_URB; j++) {
1096                         if (portdata->in_urbs[j]) {
1097                                 usb_free_urb(portdata->in_urbs[j]);
1098                                 free_page((unsigned long)
1099                                         portdata->in_buffer[j]);
1100                                 portdata->in_urbs[j] = NULL;
1101                         }
1102                 }
1103                 for (j = 0; j < N_OUT_URB; j++) {
1104                         if (portdata->out_urbs[j]) {
1105                                 usb_free_urb(portdata->out_urbs[j]);
1106                                 kfree(portdata->out_buffer[j]);
1107                                 portdata->out_urbs[j] = NULL;
1108                         }
1109                 }
1110         }
1111
1112         /* Now free per port private data */
1113         for (i = 0; i < serial->num_ports; i++) {
1114                 port = serial->port[i];
1115                 kfree(usb_get_serial_port_data(port));
1116         }
1117 }
1118
1119 MODULE_AUTHOR(DRIVER_AUTHOR);
1120 MODULE_DESCRIPTION(DRIVER_DESC);
1121 MODULE_VERSION(DRIVER_VERSION);
1122 MODULE_LICENSE("GPL");
1123
1124 module_param(debug, bool, S_IRUGO | S_IWUSR);
1125 MODULE_PARM_DESC(debug, "Debug messages");