drivers/usb/serial/option.c

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