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 /* MERLIN EVDO PRODUCTS */
 164 #define NOVATELWIRELESS_PRODUCT_V640            0x1100
 165 #define NOVATELWIRELESS_PRODUCT_V620            0x1110
 166 #define NOVATELWIRELESS_PRODUCT_V740            0x1120
 167 #define NOVATELWIRELESS_PRODUCT_V720            0x1130
 168
 169 /* MERLIN HSDPA/HSPA PRODUCTS */
 170 #define NOVATELWIRELESS_PRODUCT_U730            0x1400
 171 #define NOVATELWIRELESS_PRODUCT_U740            0x1410
 172 #define NOVATELWIRELESS_PRODUCT_U870            0x1420
 173 #define NOVATELWIRELESS_PRODUCT_XU870           0x1430
 174 #define NOVATELWIRELESS_PRODUCT_X950D           0x1450
 175
 176 /* EXPEDITE PRODUCTS */
 177 #define NOVATELWIRELESS_PRODUCT_EV620           0x2100
 178 #define NOVATELWIRELESS_PRODUCT_ES720           0x2110
 179 #define NOVATELWIRELESS_PRODUCT_E725            0x2120
 180 #define NOVATELWIRELESS_PRODUCT_ES620           0x2130
 181 #define NOVATELWIRELESS_PRODUCT_EU730           0x2400
 182 #define NOVATELWIRELESS_PRODUCT_EU740           0x2410
 183 #define NOVATELWIRELESS_PRODUCT_EU870D          0x2420
 184
 185 /* OVATION PRODUCTS */
 186 #define NOVATELWIRELESS_PRODUCT_MC727           0x4100
 187 #define NOVATELWIRELESS_PRODUCT_MC950D          0x4400
 188
 189 /* FUTURE NOVATEL PRODUCTS */
 190 #define NOVATELWIRELESS_PRODUCT_EVDO_1          0x6000
 191 #define NOVATELWIRELESS_PRODUCT_HSPA_1          0x7000
 192 #define NOVATELWIRELESS_PRODUCT_EMBEDDED_1      0x8000
 193 #define NOVATELWIRELESS_PRODUCT_GLOBAL_1        0x9000
 194 #define NOVATELWIRELESS_PRODUCT_EVDO_2          0x6001
 195 #define NOVATELWIRELESS_PRODUCT_HSPA_2          0x7001
 196 #define NOVATELWIRELESS_PRODUCT_EMBEDDED_2      0x8001
 197 #define NOVATELWIRELESS_PRODUCT_GLOBAL_2        0x9001
 198
 199 /* AMOI PRODUCTS */
 200 #define AMOI_VENDOR_ID                          0x1614
 201 #define AMOI_PRODUCT_H01                        0x0800
 202 #define AMOI_PRODUCT_H01A                       0x7002
 203 #define AMOI_PRODUCT_H02                        0x0802
 204
 205 #define DELL_VENDOR_ID                          0x413C
 206
 207 #define KYOCERA_VENDOR_ID                       0x0c88
 208 #define KYOCERA_PRODUCT_KPC650                  0x17da
 209 #define KYOCERA_PRODUCT_KPC680                  0x180a
 210
 211 #define ANYDATA_VENDOR_ID                       0x16d5
 212 #define ANYDATA_PRODUCT_ADU_620UW               0x6202
 213 #define ANYDATA_PRODUCT_ADU_E100A               0x6501
 214 #define ANYDATA_PRODUCT_ADU_500A                0x6502
 215
 216 #define AXESSTEL_VENDOR_ID                      0x1726
 217 #define AXESSTEL_PRODUCT_MV110H                 0x1000
 218
 219 #define ONDA_VENDOR_ID                          0x19d2
 220 #define ONDA_PRODUCT_MSA501HS                   0x0001
 221 #define ONDA_PRODUCT_ET502HS                    0x0002
 222
 223 #define BANDRICH_VENDOR_ID                      0x1A8D
 224 #define BANDRICH_PRODUCT_C100_1                 0x1002
 225 #define BANDRICH_PRODUCT_C100_2                 0x1003
 226 #define BANDRICH_PRODUCT_1004                   0x1004
 227 #define BANDRICH_PRODUCT_1005                   0x1005
 228 #define BANDRICH_PRODUCT_1006                   0x1006
 229 #define BANDRICH_PRODUCT_1007                   0x1007
 230 #define BANDRICH_PRODUCT_1008                   0x1008
 231 #define BANDRICH_PRODUCT_1009                   0x1009
 232 #define BANDRICH_PRODUCT_100A                   0x100a
 233
 234 #define BANDRICH_PRODUCT_100B                   0x100b
 235 #define BANDRICH_PRODUCT_100C                   0x100c
 236 #define BANDRICH_PRODUCT_100D                   0x100d
 237 #define BANDRICH_PRODUCT_100E                   0x100e
 238
 239 #define BANDRICH_PRODUCT_100F                   0x100f
 240 #define BANDRICH_PRODUCT_1010                   0x1010
 241 #define BANDRICH_PRODUCT_1011                   0x1011
 242 #define BANDRICH_PRODUCT_1012                   0x1012
 243
 244 #define AMOI_VENDOR_ID                  0x1614
 245 #define AMOI_PRODUCT_9508                       0x0800
 246
 247 #define QUALCOMM_VENDOR_ID                      0x05C6
 248
 249 #define MAXON_VENDOR_ID                         0x16d8
 250
 251 #define TELIT_VENDOR_ID                         0x1bc7
 252 #define TELIT_PRODUCT_UC864E                    0x1003
 253
 254 /* ZTE PRODUCTS */
 255 #define ZTE_VENDOR_ID                           0x19d2
 256 #define ZTE_PRODUCT_MF628                       0x0015
 257 #define ZTE_PRODUCT_MF626                       0x0031
 258 #define ZTE_PRODUCT_CDMA_TECH                   0xfffe
 259
 260 /* Ericsson products */
 261 #define ERICSSON_VENDOR_ID                      0x0bdb
 262 #define ERICSSON_PRODUCT_F3507G                 0x1900
 263
 264 /* Pantech products */
 265 #define PANTECH_VENDOR_ID                       0x106c
 266 #define PANTECH_PRODUCT_PC5740                  0x3701
 267 #define PANTECH_PRODUCT_PC5750                  0x3702  /* PX-500 */
 268 #define PANTECH_PRODUCT_UM150                   0x3711
 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(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
 412         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
 413         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1004) },
 414         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1005) },
 415         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1006) },
 416         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1007) },
 417         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1008) },
 418         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1009) },
 419         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100A) },
 420         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100B) },
 421         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100C) },
 422         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100D) },
 423         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100E) },
 424         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100F) },
 425         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1010) },
 426         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1011) },
 427         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1012) },
 428         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC650) },
 429         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
 430         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */
 431         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
 432         { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */
 433         { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864E) },
 434         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF626) },
 435         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF628) },
 436         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH) },
 437         { USB_DEVICE(ERICSSON_VENDOR_ID, ERICSSON_PRODUCT_F3507G) },
 438         { USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_PC5740) },
 439         { USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_PC5750) },
 440         { USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_UM150) },
 441         { } /* Terminating entry */
 442 };
 443 MODULE_DEVICE_TABLE(usb, option_ids);
 444
 445 static struct usb_driver option_driver = {
 446         .name       = "option",
 447         .probe      = usb_serial_probe,
 448         .disconnect = usb_serial_disconnect,
 449         .id_table   = option_ids,
 450         .no_dynamic_id =        1,
 451 };
 452
 453 /* The card has three separate interfaces, which the serial driver
 454  * recognizes separately, thus num_port=1.
 455  */
 456
 457 static struct usb_serial_driver option_1port_device = {
 458         .driver = {
 459                 .owner =        THIS_MODULE,
 460                 .name =         "option1",
 461         },
 462         .description       = "GSM modem (1-port)",
 463         .usb_driver        = &option_driver,
 464         .id_table          = option_ids,
 465         .num_ports         = 1,
 466         .open              = option_open,
 467         .close             = option_close,
 468         .write             = option_write,
 469         .write_room        = option_write_room,
 470         .chars_in_buffer   = option_chars_in_buffer,
 471         .set_termios       = option_set_termios,
 472         .tiocmget          = option_tiocmget,
 473         .tiocmset          = option_tiocmset,
 474         .attach            = option_startup,
 475         .shutdown          = option_shutdown,
 476         .read_int_callback = option_instat_callback,
 477 };
 478
 479 static int debug;
 480
 481 /* per port private data */
 482
 483 #define N_IN_URB 4
 484 #define N_OUT_URB 1
 485 #define IN_BUFLEN 4096
 486 #define OUT_BUFLEN 128
 487
 488 struct option_port_private {
 489         /* Input endpoints and buffer for this port */
 490         struct urb *in_urbs[N_IN_URB];
 491         u8 *in_buffer[N_IN_URB];
 492         /* Output endpoints and buffer for this port */
 493         struct urb *out_urbs[N_OUT_URB];
 494         u8 *out_buffer[N_OUT_URB];
 495         unsigned long out_busy;         /* Bit vector of URBs in use */
 496
 497         /* Settings for the port */
 498         int rts_state;  /* Handshaking pins (outputs) */
 499         int dtr_state;
 500         int cts_state;  /* Handshaking pins (inputs) */
 501         int dsr_state;
 502         int dcd_state;
 503         int ri_state;
 504
 505         unsigned long tx_start_time[N_OUT_URB];
 506 };
 507
 508 /* Functions used by new usb-serial code. */
 509 static int __init option_init(void)
 510 {
 511         int retval;
 512         retval = usb_serial_register(&option_1port_device);
 513         if (retval)
 514                 goto failed_1port_device_register;
 515         retval = usb_register(&option_driver);
 516         if (retval)
 517                 goto failed_driver_register;
 518
 519         printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
 520                DRIVER_DESC "\n");
 521
 522         return 0;
 523
 524 failed_driver_register:
 525         usb_serial_deregister(&option_1port_device);
 526 failed_1port_device_register:
 527         return retval;
 528 }
 529
 530 static void __exit option_exit(void)
 531 {
 532         usb_deregister(&option_driver);
 533         usb_serial_deregister(&option_1port_device);
 534 }
 535
 536 module_init(option_init);
 537 module_exit(option_exit);
 538
 539 static void option_set_termios(struct tty_struct *tty,
 540                 struct usb_serial_port *port, struct ktermios *old_termios)
 541 {
 542         dbg("%s", __func__);
 543         /* Doesn't support option setting */
 544         tty_termios_copy_hw(tty->termios, old_termios);
 545         option_send_setup(tty, port);
 546 }
 547
 548 static int option_tiocmget(struct tty_struct *tty, struct file *file)
 549 {
 550         struct usb_serial_port *port = tty->driver_data;
 551         unsigned int value;
 552         struct option_port_private *portdata;
 553
 554         portdata = usb_get_serial_port_data(port);
 555
 556         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
 557                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
 558                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
 559                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
 560                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
 561                 ((portdata->ri_state) ? TIOCM_RNG : 0);
 562
 563         return value;
 564 }
 565
 566 static int option_tiocmset(struct tty_struct *tty, struct file *file,
 567                         unsigned int set, unsigned int clear)
 568 {
 569         struct usb_serial_port *port = tty->driver_data;
 570         struct option_port_private *portdata;
 571
 572         portdata = usb_get_serial_port_data(port);
 573
 574         /* FIXME: what locks portdata fields ? */
 575         if (set & TIOCM_RTS)
 576                 portdata->rts_state = 1;
 577         if (set & TIOCM_DTR)
 578                 portdata->dtr_state = 1;
 579
 580         if (clear & TIOCM_RTS)
 581                 portdata->rts_state = 0;
 582         if (clear & TIOCM_DTR)
 583                 portdata->dtr_state = 0;
 584         return option_send_setup(tty, port);
 585 }
 586
 587 /* Write */
 588 static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
 589                         const unsigned char *buf, int count)
 590 {
 591         struct option_port_private *portdata;
 592         int i;
 593         int left, todo;
 594         struct urb *this_urb = NULL; /* spurious */
 595         int err;
 596
 597         portdata = usb_get_serial_port_data(port);
 598
 599         dbg("%s: write (%d chars)", __func__, count);
 600
 601         i = 0;
 602         left = count;
 603         for (i = 0; left > 0 && i < N_OUT_URB; i++) {
 604                 todo = left;
 605                 if (todo > OUT_BUFLEN)
 606                         todo = OUT_BUFLEN;
 607
 608                 this_urb = portdata->out_urbs[i];
 609                 if (test_and_set_bit(i, &portdata->out_busy)) {
 610                         if (time_before(jiffies,
 611                                         portdata->tx_start_time[i] + 10 * HZ))
 612                                 continue;
 613                         usb_unlink_urb(this_urb);
 614                         continue;
 615                 }
 616                 if (this_urb->status != 0)
 617                         dbg("usb_write %p failed (err=%d)",
 618                                 this_urb, this_urb->status);
 619
 620                 dbg("%s: endpoint %d buf %d", __func__,
 621                         usb_pipeendpoint(this_urb->pipe), i);
 622
 623                 /* send the data */
 624                 memcpy(this_urb->transfer_buffer, buf, todo);
 625                 this_urb->transfer_buffer_length = todo;
 626
 627                 this_urb->dev = port->serial->dev;
 628                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 629                 if (err) {
 630                         dbg("usb_submit_urb %p (write bulk) failed "
 631                                 "(%d, has %d)", this_urb,
 632                                 err, this_urb->status);
 633                         clear_bit(i, &portdata->out_busy);
 634                         continue;
 635                 }
 636                 portdata->tx_start_time[i] = jiffies;
 637                 buf += todo;
 638                 left -= todo;
 639         }
 640
 641         count -= left;
 642         dbg("%s: wrote (did %d)", __func__, count);
 643         return count;
 644 }
 645
 646 static void option_indat_callback(struct urb *urb)
 647 {
 648         int err;
 649         int endpoint;
 650         struct usb_serial_port *port;
 651         struct tty_struct *tty;
 652         unsigned char *data = urb->transfer_buffer;
 653         int status = urb->status;
 654
 655         dbg("%s: %p", __func__, urb);
 656
 657         endpoint = usb_pipeendpoint(urb->pipe);
 658         port =  urb->context;
 659
 660         if (status) {
 661                 dbg("%s: nonzero status: %d on endpoint %02x.",
 662                     __func__, status, endpoint);
 663         } else {
 664                 tty = tty_port_tty_get(&port->port);
 665                 if (urb->actual_length) {
 666                         tty_buffer_request_room(tty, urb->actual_length);
 667                         tty_insert_flip_string(tty, data, urb->actual_length);
 668                         tty_flip_buffer_push(tty);
 669                 } else
 670                         dbg("%s: empty read urb received", __func__);
 671                 tty_kref_put(tty);
 672
 673                 /* Resubmit urb so we continue receiving */
 674                 if (port->port.count && status != -ESHUTDOWN) {
 675                         err = usb_submit_urb(urb, GFP_ATOMIC);
 676                         if (err)
 677                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 678                                         "(%d)", __func__, err);
 679                 }
 680         }
 681         return;
 682 }
 683
 684 static void option_outdat_callback(struct urb *urb)
 685 {
 686         struct usb_serial_port *port;
 687         struct option_port_private *portdata;
 688         int i;
 689
 690         dbg("%s", __func__);
 691
 692         port =  urb->context;
 693
 694         usb_serial_port_softint(port);
 695
 696         portdata = usb_get_serial_port_data(port);
 697         for (i = 0; i < N_OUT_URB; ++i) {
 698                 if (portdata->out_urbs[i] == urb) {
 699                         smp_mb__before_clear_bit();
 700                         clear_bit(i, &portdata->out_busy);
 701                         break;
 702                 }
 703         }
 704 }
 705
 706 static void option_instat_callback(struct urb *urb)
 707 {
 708         int err;
 709         int status = urb->status;
 710         struct usb_serial_port *port =  urb->context;
 711         struct option_port_private *portdata = usb_get_serial_port_data(port);
 712         struct usb_serial *serial = port->serial;
 713
 714         dbg("%s", __func__);
 715         dbg("%s: urb %p port %p has data %p", __func__, urb, port, portdata);
 716
 717         if (status == 0) {
 718                 struct usb_ctrlrequest *req_pkt =
 719                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 720
 721                 if (!req_pkt) {
 722                         dbg("%s: NULL req_pkt\n", __func__);
 723                         return;
 724                 }
 725                 if ((req_pkt->bRequestType == 0xA1) &&
 726                                 (req_pkt->bRequest == 0x20)) {
 727                         int old_dcd_state;
 728                         unsigned char signals = *((unsigned char *)
 729                                         urb->transfer_buffer +
 730                                         sizeof(struct usb_ctrlrequest));
 731
 732                         dbg("%s: signal x%x", __func__, signals);
 733
 734                         old_dcd_state = portdata->dcd_state;
 735                         portdata->cts_state = 1;
 736                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 737                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 738                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 739
 740                         if (old_dcd_state && !portdata->dcd_state) {
 741                                 struct tty_struct *tty =
 742                                                 tty_port_tty_get(&port->port);
 743                                 if (tty && !C_CLOCAL(tty))
 744                                         tty_hangup(tty);
 745                                 tty_kref_put(tty);
 746                         }
 747                 } else {
 748                         dbg("%s: type %x req %x", __func__,
 749                                 req_pkt->bRequestType, req_pkt->bRequest);
 750                 }
 751         } else
 752                 dbg("%s: error %d", __func__, status);
 753
 754         /* Resubmit urb so we continue receiving IRQ data */
 755         if (status != -ESHUTDOWN) {
 756                 urb->dev = serial->dev;
 757                 err = usb_submit_urb(urb, GFP_ATOMIC);
 758                 if (err)
 759                         dbg("%s: resubmit intr urb failed. (%d)",
 760                                 __func__, err);
 761         }
 762 }
 763
 764 static int option_write_room(struct tty_struct *tty)
 765 {
 766         struct usb_serial_port *port = tty->driver_data;
 767         struct option_port_private *portdata;
 768         int i;
 769         int data_len = 0;
 770         struct urb *this_urb;
 771
 772         portdata = usb_get_serial_port_data(port);
 773
 774
 775         for (i = 0; i < N_OUT_URB; i++) {
 776                 this_urb = portdata->out_urbs[i];
 777                 if (this_urb && !test_bit(i, &portdata->out_busy))
 778                         data_len += OUT_BUFLEN;
 779         }
 780
 781         dbg("%s: %d", __func__, data_len);
 782         return data_len;
 783 }
 784
 785 static int option_chars_in_buffer(struct tty_struct *tty)
 786 {
 787         struct usb_serial_port *port = tty->driver_data;
 788         struct option_port_private *portdata;
 789         int i;
 790         int data_len = 0;
 791         struct urb *this_urb;
 792
 793         portdata = usb_get_serial_port_data(port);
 794
 795         for (i = 0; i < N_OUT_URB; i++) {
 796                 this_urb = portdata->out_urbs[i];
 797                 /* FIXME: This locking is insufficient as this_urb may
 798                    go unused during the test */
 799                 if (this_urb && test_bit(i, &portdata->out_busy))
 800                         data_len += this_urb->transfer_buffer_length;
 801         }
 802         dbg("%s: %d", __func__, data_len);
 803         return data_len;
 804 }
 805
 806 static int option_open(struct tty_struct *tty,
 807                         struct usb_serial_port *port, struct file *filp)
 808 {
 809         struct option_port_private *portdata;
 810         struct usb_serial *serial = port->serial;
 811         int i, err;
 812         struct urb *urb;
 813
 814         portdata = usb_get_serial_port_data(port);
 815
 816         dbg("%s", __func__);
 817
 818         /* Set some sane defaults */
 819         portdata->rts_state = 1;
 820         portdata->dtr_state = 1;
 821
 822         /* Reset low level data toggle and start reading from endpoints */
 823         for (i = 0; i < N_IN_URB; i++) {
 824                 urb = portdata->in_urbs[i];
 825                 if (!urb)
 826                         continue;
 827                 if (urb->dev != serial->dev) {
 828                         dbg("%s: dev %p != %p", __func__,
 829                                 urb->dev, serial->dev);
 830                         continue;
 831                 }
 832
 833                 /*
 834                  * make sure endpoint data toggle is synchronized with the
 835                  * device
 836                  */
 837                 usb_clear_halt(urb->dev, urb->pipe);
 838
 839                 err = usb_submit_urb(urb, GFP_KERNEL);
 840                 if (err) {
 841                         dbg("%s: submit urb %d failed (%d) %d",
 842                                 __func__, i, err,
 843                                 urb->transfer_buffer_length);
 844                 }
 845         }
 846
 847         /* Reset low level data toggle on out endpoints */
 848         for (i = 0; i < N_OUT_URB; i++) {
 849                 urb = portdata->out_urbs[i];
 850                 if (!urb)
 851                         continue;
 852                 urb->dev = serial->dev;
 853                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 854                                 usb_pipeout(urb->pipe), 0); */
 855         }
 856
 857         if (tty)
 858                 tty->low_latency = 1;
 859
 860         option_send_setup(tty, port);
 861
 862         return 0;
 863 }
 864
 865 static void option_close(struct tty_struct *tty,
 866                         struct usb_serial_port *port, struct file *filp)
 867 {
 868         int i;
 869         struct usb_serial *serial = port->serial;
 870         struct option_port_private *portdata;
 871
 872         dbg("%s", __func__);
 873         portdata = usb_get_serial_port_data(port);
 874
 875         portdata->rts_state = 0;
 876         portdata->dtr_state = 0;
 877
 878         if (serial->dev) {
 879                 mutex_lock(&serial->disc_mutex);
 880                 if (!serial->disconnected)
 881                         option_send_setup(tty, port);
 882                 mutex_unlock(&serial->disc_mutex);
 883
 884                 /* Stop reading/writing urbs */
 885                 for (i = 0; i < N_IN_URB; i++)
 886                         usb_kill_urb(portdata->in_urbs[i]);
 887                 for (i = 0; i < N_OUT_URB; i++)
 888                         usb_kill_urb(portdata->out_urbs[i]);
 889         }
 890         tty_port_tty_set(&port->port, NULL);
 891 }
 892
 893 /* Helper functions used by option_setup_urbs */
 894 static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
 895                 int dir, void *ctx, char *buf, int len,
 896                 void (*callback)(struct urb *))
 897 {
 898         struct urb *urb;
 899
 900         if (endpoint == -1)
 901                 return NULL;            /* endpoint not needed */
 902
 903         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 904         if (urb == NULL) {
 905                 dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
 906                 return NULL;
 907         }
 908
 909                 /* Fill URB using supplied data. */
 910         usb_fill_bulk_urb(urb, serial->dev,
 911                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 912                       buf, len, callback, ctx);
 913
 914         return urb;
 915 }
 916
 917 /* Setup urbs */
 918 static void option_setup_urbs(struct usb_serial *serial)
 919 {
 920         int i, j;
 921         struct usb_serial_port *port;
 922         struct option_port_private *portdata;
 923
 924         dbg("%s", __func__);
 925
 926         for (i = 0; i < serial->num_ports; i++) {
 927                 port = serial->port[i];
 928                 portdata = usb_get_serial_port_data(port);
 929
 930                 /* Do indat endpoints first */
 931                 for (j = 0; j < N_IN_URB; ++j) {
 932                         portdata->in_urbs[j] = option_setup_urb(serial,
 933                                         port->bulk_in_endpointAddress,
 934                                         USB_DIR_IN, port,
 935                                         portdata->in_buffer[j],
 936                                         IN_BUFLEN, option_indat_callback);
 937                 }
 938
 939                 /* outdat endpoints */
 940                 for (j = 0; j < N_OUT_URB; ++j) {
 941                         portdata->out_urbs[j] = option_setup_urb(serial,
 942                                         port->bulk_out_endpointAddress,
 943                                         USB_DIR_OUT, port,
 944                                         portdata->out_buffer[j],
 945                                         OUT_BUFLEN, option_outdat_callback);
 946                 }
 947         }
 948 }
 949
 950
 951 /** send RTS/DTR state to the port.
 952  *
 953  * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
 954  * CDC.
 955 */
 956 static int option_send_setup(struct tty_struct *tty,
 957                                                 struct usb_serial_port *port)
 958 {
 959         struct usb_serial *serial = port->serial;
 960         struct option_port_private *portdata;
 961         int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
 962         dbg("%s", __func__);
 963
 964         portdata = usb_get_serial_port_data(port);
 965
 966         if (tty) {
 967                 int val = 0;
 968                 if (portdata->dtr_state)
 969                         val |= 0x01;
 970                 if (portdata->rts_state)
 971                         val |= 0x02;
 972
 973                 return usb_control_msg(serial->dev,
 974                         usb_rcvctrlpipe(serial->dev, 0),
 975                         0x22, 0x21, val, ifNum, NULL, 0, USB_CTRL_SET_TIMEOUT);
 976         }
 977         return 0;
 978 }
 979
 980 static int option_startup(struct usb_serial *serial)
 981 {
 982         int i, j, err;
 983         struct usb_serial_port *port;
 984         struct option_port_private *portdata;
 985         u8 *buffer;
 986
 987         dbg("%s", __func__);
 988
 989         /* Now setup per port private data */
 990         for (i = 0; i < serial->num_ports; i++) {
 991                 port = serial->port[i];
 992                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
 993                 if (!portdata) {
 994                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
 995                                         __func__, i);
 996                         return 1;
 997                 }
 998
 999                 for (j = 0; j < N_IN_URB; j++) {
1000                         buffer = (u8 *)__get_free_page(GFP_KERNEL);
1001                         if (!buffer)
1002                                 goto bail_out_error;
1003                         portdata->in_buffer[j] = buffer;
1004                 }
1005
1006                 for (j = 0; j < N_OUT_URB; j++) {
1007                         buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
1008                         if (!buffer)
1009                                 goto bail_out_error2;
1010                         portdata->out_buffer[j] = buffer;
1011                 }
1012
1013                 usb_set_serial_port_data(port, portdata);
1014
1015                 if (!port->interrupt_in_urb)
1016                         continue;
1017                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
1018                 if (err)
1019                         dbg("%s: submit irq_in urb failed %d",
1020                                 __func__, err);
1021         }
1022         option_setup_urbs(serial);
1023         return 0;
1024
1025 bail_out_error2:
1026         for (j = 0; j < N_OUT_URB; j++)
1027                 kfree(portdata->out_buffer[j]);
1028 bail_out_error:
1029         for (j = 0; j < N_IN_URB; j++)
1030                 if (portdata->in_buffer[j])
1031                         free_page((unsigned long)portdata->in_buffer[j]);
1032         kfree(portdata);
1033         return 1;
1034 }
1035
1036 static void option_shutdown(struct usb_serial *serial)
1037 {
1038         int i, j;
1039         struct usb_serial_port *port;
1040         struct option_port_private *portdata;
1041
1042         dbg("%s", __func__);
1043
1044         /* Stop reading/writing urbs */
1045         for (i = 0; i < serial->num_ports; ++i) {
1046                 port = serial->port[i];
1047                 portdata = usb_get_serial_port_data(port);
1048                 for (j = 0; j < N_IN_URB; j++)
1049                         usb_kill_urb(portdata->in_urbs[j]);
1050                 for (j = 0; j < N_OUT_URB; j++)
1051                         usb_kill_urb(portdata->out_urbs[j]);
1052         }
1053
1054         /* Now free them */
1055         for (i = 0; i < serial->num_ports; ++i) {
1056                 port = serial->port[i];
1057                 portdata = usb_get_serial_port_data(port);
1058
1059                 for (j = 0; j < N_IN_URB; j++) {
1060                         if (portdata->in_urbs[j]) {
1061                                 usb_free_urb(portdata->in_urbs[j]);
1062                                 free_page((unsigned long)
1063                                         portdata->in_buffer[j]);
1064                                 portdata->in_urbs[j] = NULL;
1065                         }
1066                 }
1067                 for (j = 0; j < N_OUT_URB; j++) {
1068                         if (portdata->out_urbs[j]) {
1069                                 usb_free_urb(portdata->out_urbs[j]);
1070                                 kfree(portdata->out_buffer[j]);
1071                                 portdata->out_urbs[j] = NULL;
1072                         }
1073                 }
1074         }
1075
1076         /* Now free per port private data */
1077         for (i = 0; i < serial->num_ports; i++) {
1078                 port = serial->port[i];
1079                 kfree(usb_get_serial_port_data(port));
1080         }
1081 }
1082
1083 MODULE_AUTHOR(DRIVER_AUTHOR);
1084 MODULE_DESCRIPTION(DRIVER_DESC);
1085 MODULE_VERSION(DRIVER_VERSION);
1086 MODULE_LICENSE("GPL");
1087
1088 module_param(debug, bool, S_IRUGO | S_IWUSR);
1089 MODULE_PARM_DESC(debug, "Debug messages");