SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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
 228 #define BANDRICH_VENDOR_ID                      0x1A8D
 229 #define BANDRICH_PRODUCT_C100_1                 0x1002
 230 #define BANDRICH_PRODUCT_C100_2                 0x1003
 231 #define BANDRICH_PRODUCT_1004                   0x1004
 232 #define BANDRICH_PRODUCT_1005                   0x1005
 233 #define BANDRICH_PRODUCT_1006                   0x1006
 234 #define BANDRICH_PRODUCT_1007                   0x1007
 235 #define BANDRICH_PRODUCT_1008                   0x1008
 236 #define BANDRICH_PRODUCT_1009                   0x1009
 237 #define BANDRICH_PRODUCT_100A                   0x100a
 238
 239 #define BANDRICH_PRODUCT_100B                   0x100b
 240 #define BANDRICH_PRODUCT_100C                   0x100c
 241 #define BANDRICH_PRODUCT_100D                   0x100d
 242 #define BANDRICH_PRODUCT_100E                   0x100e
 243
 244 #define BANDRICH_PRODUCT_100F                   0x100f
 245 #define BANDRICH_PRODUCT_1010                   0x1010
 246 #define BANDRICH_PRODUCT_1011                   0x1011
 247 #define BANDRICH_PRODUCT_1012                   0x1012
 248
 249 #define AMOI_VENDOR_ID                  0x1614
 250 #define AMOI_PRODUCT_9508                       0x0800
 251
 252 #define QUALCOMM_VENDOR_ID                      0x05C6
 253
 254 #define MAXON_VENDOR_ID                         0x16d8
 255
 256 #define TELIT_VENDOR_ID                         0x1bc7
 257 #define TELIT_PRODUCT_UC864E                    0x1003
 258
 259 /* ZTE PRODUCTS */
 260 #define ZTE_VENDOR_ID                           0x19d2
 261 #define ZTE_PRODUCT_MF628                       0x0015
 262 #define ZTE_PRODUCT_MF626                       0x0031
 263 #define ZTE_PRODUCT_CDMA_TECH                   0xfffe
 264
 265 /* Ericsson products */
 266 #define ERICSSON_VENDOR_ID                      0x0bdb
 267 #define ERICSSON_PRODUCT_F3507G                 0x1900
 268
 269 /* Pantech products */
 270 #define PANTECH_VENDOR_ID                       0x106c
 271 #define PANTECH_PRODUCT_PC5740                  0x3701
 272 #define PANTECH_PRODUCT_PC5750                  0x3702  /* PX-500 */
 273 #define PANTECH_PRODUCT_UM150                   0x3711
 274
 275 static struct usb_device_id option_ids[] = {
 276         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
 277         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
 278         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
 279         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD) },
 280         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD_LIGHT) },
 281         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS) },
 282         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_LIGHT) },
 283         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD) },
 284         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT) },
 285         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
 286         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA_BUS) },
 287         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER) },
 288         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER_BUS) },
 289         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX_READY) },
 290         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_LIGHT) },
 291         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_GT) },
 292         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_EX) },
 293         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_MODEM) },
 294         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_MODEM) },
 295         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM) },
 296         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_LITE) },
 297         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) },
 298         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) },
 299         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) },
 300         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600, 0xff, 0xff, 0xff) },
 301         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220, 0xff, 0xff, 0xff) },
 302         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS, 0xff, 0xff, 0xff) },
 303         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1401, 0xff, 0xff, 0xff) },
 304         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1402, 0xff, 0xff, 0xff) },
 305         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1403, 0xff, 0xff, 0xff) },
 306         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1404, 0xff, 0xff, 0xff) },
 307         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1405, 0xff, 0xff, 0xff) },
 308         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1406, 0xff, 0xff, 0xff) },
 309         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1407, 0xff, 0xff, 0xff) },
 310         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1408, 0xff, 0xff, 0xff) },
 311         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1409, 0xff, 0xff, 0xff) },
 312         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140A, 0xff, 0xff, 0xff) },
 313         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140B, 0xff, 0xff, 0xff) },
 314         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140C, 0xff, 0xff, 0xff) },
 315         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140D, 0xff, 0xff, 0xff) },
 316         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140E, 0xff, 0xff, 0xff) },
 317         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140F, 0xff, 0xff, 0xff) },
 318         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1410, 0xff, 0xff, 0xff) },
 319         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1411, 0xff, 0xff, 0xff) },
 320         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1412, 0xff, 0xff, 0xff) },
 321         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1413, 0xff, 0xff, 0xff) },
 322         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1414, 0xff, 0xff, 0xff) },
 323         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1415, 0xff, 0xff, 0xff) },
 324         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1416, 0xff, 0xff, 0xff) },
 325         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1417, 0xff, 0xff, 0xff) },
 326         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1418, 0xff, 0xff, 0xff) },
 327         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1419, 0xff, 0xff, 0xff) },
 328         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141A, 0xff, 0xff, 0xff) },
 329         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141B, 0xff, 0xff, 0xff) },
 330         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141C, 0xff, 0xff, 0xff) },
 331         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141D, 0xff, 0xff, 0xff) },
 332         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141E, 0xff, 0xff, 0xff) },
 333         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141F, 0xff, 0xff, 0xff) },
 334         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1420, 0xff, 0xff, 0xff) },
 335         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1421, 0xff, 0xff, 0xff) },
 336         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1422, 0xff, 0xff, 0xff) },
 337         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1423, 0xff, 0xff, 0xff) },
 338         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1424, 0xff, 0xff, 0xff) },
 339         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1425, 0xff, 0xff, 0xff) },
 340         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1426, 0xff, 0xff, 0xff) },
 341         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1427, 0xff, 0xff, 0xff) },
 342         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1428, 0xff, 0xff, 0xff) },
 343         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1429, 0xff, 0xff, 0xff) },
 344         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142A, 0xff, 0xff, 0xff) },
 345         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142B, 0xff, 0xff, 0xff) },
 346         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142C, 0xff, 0xff, 0xff) },
 347         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142D, 0xff, 0xff, 0xff) },
 348         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142E, 0xff, 0xff, 0xff) },
 349         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142F, 0xff, 0xff, 0xff) },
 350         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1430, 0xff, 0xff, 0xff) },
 351         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1431, 0xff, 0xff, 0xff) },
 352         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1432, 0xff, 0xff, 0xff) },
 353         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1433, 0xff, 0xff, 0xff) },
 354         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1434, 0xff, 0xff, 0xff) },
 355         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1435, 0xff, 0xff, 0xff) },
 356         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1436, 0xff, 0xff, 0xff) },
 357         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1437, 0xff, 0xff, 0xff) },
 358         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1438, 0xff, 0xff, 0xff) },
 359         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1439, 0xff, 0xff, 0xff) },
 360         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143A, 0xff, 0xff, 0xff) },
 361         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143B, 0xff, 0xff, 0xff) },
 362         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143C, 0xff, 0xff, 0xff) },
 363         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143D, 0xff, 0xff, 0xff) },
 364         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143E, 0xff, 0xff, 0xff) },
 365         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143F, 0xff, 0xff, 0xff) },
 366         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_9508) },
 367         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */
 368         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */
 369         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) }, /* Novatel Merlin EX720/V740/X720 */
 370         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V720) }, /* Novatel Merlin V720/S720/PC720 */
 371         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U730) }, /* Novatel U730/U740 (VF version) */
 372         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U740) }, /* Novatel U740 */
 373         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U870) }, /* Novatel U870 */
 374         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_XU870) }, /* Novatel Merlin XU870 HSDPA/3G */
 375         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_X950D) }, /* Novatel X950D */
 376         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EV620) }, /* Novatel EV620/ES620 CDMA/EV-DO */
 377         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES720) }, /* Novatel ES620/ES720/U720/USB720 */
 378         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E725) }, /* Novatel E725/E726 */
 379         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES620) }, /* Novatel Merlin ES620 SM Bus */
 380         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU730) }, /* Novatel EU730 and Vodafone EU740 */
 381         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU740) }, /* Novatel non-Vodafone EU740 */
 382         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) }, /* Novatel EU850D/EU860D/EU870D */
 383         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) }, /* Novatel MC930D/MC950D */
 384         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) }, /* Novatel MC727/U727/USB727 */
 385         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_1) }, /* Novatel EVDO product */
 386         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_1) }, /* Novatel HSPA product */
 387         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_1) }, /* Novatel Embedded product */
 388         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_1) }, /* Novatel Global product */
 389         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_2) }, /* Novatel EVDO product */
 390         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_2) }, /* Novatel HSPA product */
 391         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_2) }, /* Novatel Embedded product */
 392         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_2) }, /* Novatel Global product */
 393
 394         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01) },
 395         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01A) },
 396         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H02) },
 397
 398         { USB_DEVICE(DELL_VENDOR_ID, 0x8114) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */
 399         { USB_DEVICE(DELL_VENDOR_ID, 0x8115) }, /* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 400         { USB_DEVICE(DELL_VENDOR_ID, 0x8116) }, /* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 401         { USB_DEVICE(DELL_VENDOR_ID, 0x8117) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO ExpressCard == Novatel Merlin XV620 CDMA/EV-DO */
 402         { USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard == Novatel Merlin XU870 HSDPA/3G */
 403         { USB_DEVICE(DELL_VENDOR_ID, 0x8128) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite E720 CDMA/EV-DO */
 404         { USB_DEVICE(DELL_VENDOR_ID, 0x8129) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite ET620 CDMA/EV-DO */
 405         { USB_DEVICE(DELL_VENDOR_ID, 0x8133) }, /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
 406         { USB_DEVICE(DELL_VENDOR_ID, 0x8136) }, /* Dell Wireless HSDPA 5520 == Novatel Expedite EU860D */
 407         { USB_DEVICE(DELL_VENDOR_ID, 0x8137) }, /* Dell Wireless HSDPA 5520 */
 408         { USB_DEVICE(DELL_VENDOR_ID, 0x8138) }, /* Dell Wireless 5520 Voda I Mobile Broadband (3G HSDPA) Minicard */
 409         { USB_DEVICE(DELL_VENDOR_ID, 0x8147) }, /* Dell Wireless 5530 Mobile Broadband (3G HSPA) Mini-Card */
 410         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },   /* ADU-E100, ADU-310 */
 411         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
 412         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
 413         { USB_DEVICE(AXESSTEL_VENDOR_ID, AXESSTEL_PRODUCT_MV110H) },
 414         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_MSA501HS) },
 415         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_ET502HS) },
 416         { USB_DEVICE(YISO_VENDOR_ID, YISO_PRODUCT_U893) },
 417         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
 418         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
 419         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1004) },
 420         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1005) },
 421         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1006) },
 422         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1007) },
 423         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1008) },
 424         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1009) },
 425         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100A) },
 426         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100B) },
 427         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100C) },
 428         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100D) },
 429         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100E) },
 430         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100F) },
 431         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1010) },
 432         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1011) },
 433         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1012) },
 434         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC650) },
 435         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
 436         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */
 437         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
 438         { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */
 439         { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864E) },
 440         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF626) },
 441         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF628) },
 442         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH) },
 443         { USB_DEVICE(ERICSSON_VENDOR_ID, ERICSSON_PRODUCT_F3507G) },
 444         { USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_PC5740) },
 445         { USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_PC5750) },
 446         { USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_UM150) },
 447         { } /* Terminating entry */
 448 };
 449 MODULE_DEVICE_TABLE(usb, option_ids);
 450
 451 static struct usb_driver option_driver = {
 452         .name       = "option",
 453         .probe      = usb_serial_probe,
 454         .disconnect = usb_serial_disconnect,
 455         .id_table   = option_ids,
 456         .no_dynamic_id =        1,
 457 };
 458
 459 /* The card has three separate interfaces, which the serial driver
 460  * recognizes separately, thus num_port=1.
 461  */
 462
 463 static struct usb_serial_driver option_1port_device = {
 464         .driver = {
 465                 .owner =        THIS_MODULE,
 466                 .name =         "option1",
 467         },
 468         .description       = "GSM modem (1-port)",
 469         .usb_driver        = &option_driver,
 470         .id_table          = option_ids,
 471         .num_ports         = 1,
 472         .open              = option_open,
 473         .close             = option_close,
 474         .write             = option_write,
 475         .write_room        = option_write_room,
 476         .chars_in_buffer   = option_chars_in_buffer,
 477         .set_termios       = option_set_termios,
 478         .tiocmget          = option_tiocmget,
 479         .tiocmset          = option_tiocmset,
 480         .attach            = option_startup,
 481         .shutdown          = option_shutdown,
 482         .read_int_callback = option_instat_callback,
 483 };
 484
 485 static int debug;
 486
 487 /* per port private data */
 488
 489 #define N_IN_URB 4
 490 #define N_OUT_URB 1
 491 #define IN_BUFLEN 4096
 492 #define OUT_BUFLEN 128
 493
 494 struct option_port_private {
 495         /* Input endpoints and buffer for this port */
 496         struct urb *in_urbs[N_IN_URB];
 497         u8 *in_buffer[N_IN_URB];
 498         /* Output endpoints and buffer for this port */
 499         struct urb *out_urbs[N_OUT_URB];
 500         u8 *out_buffer[N_OUT_URB];
 501         unsigned long out_busy;         /* Bit vector of URBs in use */
 502
 503         /* Settings for the port */
 504         int rts_state;  /* Handshaking pins (outputs) */
 505         int dtr_state;
 506         int cts_state;  /* Handshaking pins (inputs) */
 507         int dsr_state;
 508         int dcd_state;
 509         int ri_state;
 510
 511         unsigned long tx_start_time[N_OUT_URB];
 512 };
 513
 514 /* Functions used by new usb-serial code. */
 515 static int __init option_init(void)
 516 {
 517         int retval;
 518         retval = usb_serial_register(&option_1port_device);
 519         if (retval)
 520                 goto failed_1port_device_register;
 521         retval = usb_register(&option_driver);
 522         if (retval)
 523                 goto failed_driver_register;
 524
 525         printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
 526                DRIVER_DESC "\n");
 527
 528         return 0;
 529
 530 failed_driver_register:
 531         usb_serial_deregister(&option_1port_device);
 532 failed_1port_device_register:
 533         return retval;
 534 }
 535
 536 static void __exit option_exit(void)
 537 {
 538         usb_deregister(&option_driver);
 539         usb_serial_deregister(&option_1port_device);
 540 }
 541
 542 module_init(option_init);
 543 module_exit(option_exit);
 544
 545 static void option_set_termios(struct tty_struct *tty,
 546                 struct usb_serial_port *port, struct ktermios *old_termios)
 547 {
 548         dbg("%s", __func__);
 549         /* Doesn't support option setting */
 550         tty_termios_copy_hw(tty->termios, old_termios);
 551         option_send_setup(tty, port);
 552 }
 553
 554 static int option_tiocmget(struct tty_struct *tty, struct file *file)
 555 {
 556         struct usb_serial_port *port = tty->driver_data;
 557         unsigned int value;
 558         struct option_port_private *portdata;
 559
 560         portdata = usb_get_serial_port_data(port);
 561
 562         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
 563                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
 564                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
 565                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
 566                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
 567                 ((portdata->ri_state) ? TIOCM_RNG : 0);
 568
 569         return value;
 570 }
 571
 572 static int option_tiocmset(struct tty_struct *tty, struct file *file,
 573                         unsigned int set, unsigned int clear)
 574 {
 575         struct usb_serial_port *port = tty->driver_data;
 576         struct option_port_private *portdata;
 577
 578         portdata = usb_get_serial_port_data(port);
 579
 580         /* FIXME: what locks portdata fields ? */
 581         if (set & TIOCM_RTS)
 582                 portdata->rts_state = 1;
 583         if (set & TIOCM_DTR)
 584                 portdata->dtr_state = 1;
 585
 586         if (clear & TIOCM_RTS)
 587                 portdata->rts_state = 0;
 588         if (clear & TIOCM_DTR)
 589                 portdata->dtr_state = 0;
 590         return option_send_setup(tty, port);
 591 }
 592
 593 /* Write */
 594 static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
 595                         const unsigned char *buf, int count)
 596 {
 597         struct option_port_private *portdata;
 598         int i;
 599         int left, todo;
 600         struct urb *this_urb = NULL; /* spurious */
 601         int err;
 602
 603         portdata = usb_get_serial_port_data(port);
 604
 605         dbg("%s: write (%d chars)", __func__, count);
 606
 607         i = 0;
 608         left = count;
 609         for (i = 0; left > 0 && i < N_OUT_URB; i++) {
 610                 todo = left;
 611                 if (todo > OUT_BUFLEN)
 612                         todo = OUT_BUFLEN;
 613
 614                 this_urb = portdata->out_urbs[i];
 615                 if (test_and_set_bit(i, &portdata->out_busy)) {
 616                         if (time_before(jiffies,
 617                                         portdata->tx_start_time[i] + 10 * HZ))
 618                                 continue;
 619                         usb_unlink_urb(this_urb);
 620                         continue;
 621                 }
 622                 if (this_urb->status != 0)
 623                         dbg("usb_write %p failed (err=%d)",
 624                                 this_urb, this_urb->status);
 625
 626                 dbg("%s: endpoint %d buf %d", __func__,
 627                         usb_pipeendpoint(this_urb->pipe), i);
 628
 629                 /* send the data */
 630                 memcpy(this_urb->transfer_buffer, buf, todo);
 631                 this_urb->transfer_buffer_length = todo;
 632
 633                 this_urb->dev = port->serial->dev;
 634                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 635                 if (err) {
 636                         dbg("usb_submit_urb %p (write bulk) failed "
 637                                 "(%d, has %d)", this_urb,
 638                                 err, this_urb->status);
 639                         clear_bit(i, &portdata->out_busy);
 640                         continue;
 641                 }
 642                 portdata->tx_start_time[i] = jiffies;
 643                 buf += todo;
 644                 left -= todo;
 645         }
 646
 647         count -= left;
 648         dbg("%s: wrote (did %d)", __func__, count);
 649         return count;
 650 }
 651
 652 static void option_indat_callback(struct urb *urb)
 653 {
 654         int err;
 655         int endpoint;
 656         struct usb_serial_port *port;
 657         struct tty_struct *tty;
 658         unsigned char *data = urb->transfer_buffer;
 659         int status = urb->status;
 660
 661         dbg("%s: %p", __func__, urb);
 662
 663         endpoint = usb_pipeendpoint(urb->pipe);
 664         port =  urb->context;
 665
 666         if (status) {
 667                 dbg("%s: nonzero status: %d on endpoint %02x.",
 668                     __func__, status, endpoint);
 669         } else {
 670                 tty = tty_port_tty_get(&port->port);
 671                 if (urb->actual_length) {
 672                         tty_buffer_request_room(tty, urb->actual_length);
 673                         tty_insert_flip_string(tty, data, urb->actual_length);
 674                         tty_flip_buffer_push(tty);
 675                 } else
 676                         dbg("%s: empty read urb received", __func__);
 677                 tty_kref_put(tty);
 678
 679                 /* Resubmit urb so we continue receiving */
 680                 if (port->port.count && status != -ESHUTDOWN) {
 681                         err = usb_submit_urb(urb, GFP_ATOMIC);
 682                         if (err)
 683                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 684                                         "(%d)", __func__, err);
 685                 }
 686         }
 687         return;
 688 }
 689
 690 static void option_outdat_callback(struct urb *urb)
 691 {
 692         struct usb_serial_port *port;
 693         struct option_port_private *portdata;
 694         int i;
 695
 696         dbg("%s", __func__);
 697
 698         port =  urb->context;
 699
 700         usb_serial_port_softint(port);
 701
 702         portdata = usb_get_serial_port_data(port);
 703         for (i = 0; i < N_OUT_URB; ++i) {
 704                 if (portdata->out_urbs[i] == urb) {
 705                         smp_mb__before_clear_bit();
 706                         clear_bit(i, &portdata->out_busy);
 707                         break;
 708                 }
 709         }
 710 }
 711
 712 static void option_instat_callback(struct urb *urb)
 713 {
 714         int err;
 715         int status = urb->status;
 716         struct usb_serial_port *port =  urb->context;
 717         struct option_port_private *portdata = usb_get_serial_port_data(port);
 718         struct usb_serial *serial = port->serial;
 719
 720         dbg("%s", __func__);
 721         dbg("%s: urb %p port %p has data %p", __func__, urb, port, portdata);
 722
 723         if (status == 0) {
 724                 struct usb_ctrlrequest *req_pkt =
 725                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 726
 727                 if (!req_pkt) {
 728                         dbg("%s: NULL req_pkt\n", __func__);
 729                         return;
 730                 }
 731                 if ((req_pkt->bRequestType == 0xA1) &&
 732                                 (req_pkt->bRequest == 0x20)) {
 733                         int old_dcd_state;
 734                         unsigned char signals = *((unsigned char *)
 735                                         urb->transfer_buffer +
 736                                         sizeof(struct usb_ctrlrequest));
 737
 738                         dbg("%s: signal x%x", __func__, signals);
 739
 740                         old_dcd_state = portdata->dcd_state;
 741                         portdata->cts_state = 1;
 742                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 743                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 744                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 745
 746                         if (old_dcd_state && !portdata->dcd_state) {
 747                                 struct tty_struct *tty =
 748                                                 tty_port_tty_get(&port->port);
 749                                 if (tty && !C_CLOCAL(tty))
 750                                         tty_hangup(tty);
 751                                 tty_kref_put(tty);
 752                         }
 753                 } else {
 754                         dbg("%s: type %x req %x", __func__,
 755                                 req_pkt->bRequestType, req_pkt->bRequest);
 756                 }
 757         } else
 758                 dbg("%s: error %d", __func__, status);
 759
 760         /* Resubmit urb so we continue receiving IRQ data */
 761         if (status != -ESHUTDOWN) {
 762                 urb->dev = serial->dev;
 763                 err = usb_submit_urb(urb, GFP_ATOMIC);
 764                 if (err)
 765                         dbg("%s: resubmit intr urb failed. (%d)",
 766                                 __func__, err);
 767         }
 768 }
 769
 770 static int option_write_room(struct tty_struct *tty)
 771 {
 772         struct usb_serial_port *port = tty->driver_data;
 773         struct option_port_private *portdata;
 774         int i;
 775         int data_len = 0;
 776         struct urb *this_urb;
 777
 778         portdata = usb_get_serial_port_data(port);
 779
 780
 781         for (i = 0; i < N_OUT_URB; i++) {
 782                 this_urb = portdata->out_urbs[i];
 783                 if (this_urb && !test_bit(i, &portdata->out_busy))
 784                         data_len += OUT_BUFLEN;
 785         }
 786
 787         dbg("%s: %d", __func__, data_len);
 788         return data_len;
 789 }
 790
 791 static int option_chars_in_buffer(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         for (i = 0; i < N_OUT_URB; i++) {
 802                 this_urb = portdata->out_urbs[i];
 803                 /* FIXME: This locking is insufficient as this_urb may
 804                    go unused during the test */
 805                 if (this_urb && test_bit(i, &portdata->out_busy))
 806                         data_len += this_urb->transfer_buffer_length;
 807         }
 808         dbg("%s: %d", __func__, data_len);
 809         return data_len;
 810 }
 811
 812 static int option_open(struct tty_struct *tty,
 813                         struct usb_serial_port *port, struct file *filp)
 814 {
 815         struct option_port_private *portdata;
 816         struct usb_serial *serial = port->serial;
 817         int i, err;
 818         struct urb *urb;
 819
 820         portdata = usb_get_serial_port_data(port);
 821
 822         dbg("%s", __func__);
 823
 824         /* Set some sane defaults */
 825         portdata->rts_state = 1;
 826         portdata->dtr_state = 1;
 827
 828         /* Reset low level data toggle and start reading from endpoints */
 829         for (i = 0; i < N_IN_URB; i++) {
 830                 urb = portdata->in_urbs[i];
 831                 if (!urb)
 832                         continue;
 833                 if (urb->dev != serial->dev) {
 834                         dbg("%s: dev %p != %p", __func__,
 835                                 urb->dev, serial->dev);
 836                         continue;
 837                 }
 838
 839                 /*
 840                  * make sure endpoint data toggle is synchronized with the
 841                  * device
 842                  */
 843                 usb_clear_halt(urb->dev, urb->pipe);
 844
 845                 err = usb_submit_urb(urb, GFP_KERNEL);
 846                 if (err) {
 847                         dbg("%s: submit urb %d failed (%d) %d",
 848                                 __func__, i, err,
 849                                 urb->transfer_buffer_length);
 850                 }
 851         }
 852
 853         /* Reset low level data toggle on out endpoints */
 854         for (i = 0; i < N_OUT_URB; i++) {
 855                 urb = portdata->out_urbs[i];
 856                 if (!urb)
 857                         continue;
 858                 urb->dev = serial->dev;
 859                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 860                                 usb_pipeout(urb->pipe), 0); */
 861         }
 862
 863         if (tty)
 864                 tty->low_latency = 1;
 865
 866         option_send_setup(tty, port);
 867
 868         return 0;
 869 }
 870
 871 static void option_close(struct tty_struct *tty,
 872                         struct usb_serial_port *port, struct file *filp)
 873 {
 874         int i;
 875         struct usb_serial *serial = port->serial;
 876         struct option_port_private *portdata;
 877
 878         dbg("%s", __func__);
 879         portdata = usb_get_serial_port_data(port);
 880
 881         portdata->rts_state = 0;
 882         portdata->dtr_state = 0;
 883
 884         if (serial->dev) {
 885                 mutex_lock(&serial->disc_mutex);
 886                 if (!serial->disconnected)
 887                         option_send_setup(tty, port);
 888                 mutex_unlock(&serial->disc_mutex);
 889
 890                 /* Stop reading/writing urbs */
 891                 for (i = 0; i < N_IN_URB; i++)
 892                         usb_kill_urb(portdata->in_urbs[i]);
 893                 for (i = 0; i < N_OUT_URB; i++)
 894                         usb_kill_urb(portdata->out_urbs[i]);
 895         }
 896         tty_port_tty_set(&port->port, NULL);
 897 }
 898
 899 /* Helper functions used by option_setup_urbs */
 900 static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
 901                 int dir, void *ctx, char *buf, int len,
 902                 void (*callback)(struct urb *))
 903 {
 904         struct urb *urb;
 905
 906         if (endpoint == -1)
 907                 return NULL;            /* endpoint not needed */
 908
 909         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 910         if (urb == NULL) {
 911                 dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
 912                 return NULL;
 913         }
 914
 915                 /* Fill URB using supplied data. */
 916         usb_fill_bulk_urb(urb, serial->dev,
 917                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 918                       buf, len, callback, ctx);
 919
 920         return urb;
 921 }
 922
 923 /* Setup urbs */
 924 static void option_setup_urbs(struct usb_serial *serial)
 925 {
 926         int i, j;
 927         struct usb_serial_port *port;
 928         struct option_port_private *portdata;
 929
 930         dbg("%s", __func__);
 931
 932         for (i = 0; i < serial->num_ports; i++) {
 933                 port = serial->port[i];
 934                 portdata = usb_get_serial_port_data(port);
 935
 936                 /* Do indat endpoints first */
 937                 for (j = 0; j < N_IN_URB; ++j) {
 938                         portdata->in_urbs[j] = option_setup_urb(serial,
 939                                         port->bulk_in_endpointAddress,
 940                                         USB_DIR_IN, port,
 941                                         portdata->in_buffer[j],
 942                                         IN_BUFLEN, option_indat_callback);
 943                 }
 944
 945                 /* outdat endpoints */
 946                 for (j = 0; j < N_OUT_URB; ++j) {
 947                         portdata->out_urbs[j] = option_setup_urb(serial,
 948                                         port->bulk_out_endpointAddress,
 949                                         USB_DIR_OUT, port,
 950                                         portdata->out_buffer[j],
 951                                         OUT_BUFLEN, option_outdat_callback);
 952                 }
 953         }
 954 }
 955
 956
 957 /** send RTS/DTR state to the port.
 958  *
 959  * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
 960  * CDC.
 961 */
 962 static int option_send_setup(struct tty_struct *tty,
 963                                                 struct usb_serial_port *port)
 964 {
 965         struct usb_serial *serial = port->serial;
 966         struct option_port_private *portdata;
 967         int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
 968         dbg("%s", __func__);
 969
 970         portdata = usb_get_serial_port_data(port);
 971
 972         if (tty) {
 973                 int val = 0;
 974                 if (portdata->dtr_state)
 975                         val |= 0x01;
 976                 if (portdata->rts_state)
 977                         val |= 0x02;
 978
 979                 return usb_control_msg(serial->dev,
 980                         usb_rcvctrlpipe(serial->dev, 0),
 981                         0x22, 0x21, val, ifNum, NULL, 0, USB_CTRL_SET_TIMEOUT);
 982         }
 983         return 0;
 984 }
 985
 986 static int option_startup(struct usb_serial *serial)
 987 {
 988         int i, j, err;
 989         struct usb_serial_port *port;
 990         struct option_port_private *portdata;
 991         u8 *buffer;
 992
 993         dbg("%s", __func__);
 994
 995         /* Now setup per port private data */
 996         for (i = 0; i < serial->num_ports; i++) {
 997                 port = serial->port[i];
 998                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
 999                 if (!portdata) {
1000                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
1001                                         __func__, i);
1002                         return 1;
1003                 }
1004
1005                 for (j = 0; j < N_IN_URB; j++) {
1006                         buffer = (u8 *)__get_free_page(GFP_KERNEL);
1007                         if (!buffer)
1008                                 goto bail_out_error;
1009                         portdata->in_buffer[j] = buffer;
1010                 }
1011
1012                 for (j = 0; j < N_OUT_URB; j++) {
1013                         buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
1014                         if (!buffer)
1015                                 goto bail_out_error2;
1016                         portdata->out_buffer[j] = buffer;
1017                 }
1018
1019                 usb_set_serial_port_data(port, portdata);
1020
1021                 if (!port->interrupt_in_urb)
1022                         continue;
1023                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
1024                 if (err)
1025                         dbg("%s: submit irq_in urb failed %d",
1026                                 __func__, err);
1027         }
1028         option_setup_urbs(serial);
1029         return 0;
1030
1031 bail_out_error2:
1032         for (j = 0; j < N_OUT_URB; j++)
1033                 kfree(portdata->out_buffer[j]);
1034 bail_out_error:
1035         for (j = 0; j < N_IN_URB; j++)
1036                 if (portdata->in_buffer[j])
1037                         free_page((unsigned long)portdata->in_buffer[j]);
1038         kfree(portdata);
1039         return 1;
1040 }
1041
1042 static void option_shutdown(struct usb_serial *serial)
1043 {
1044         int i, j;
1045         struct usb_serial_port *port;
1046         struct option_port_private *portdata;
1047
1048         dbg("%s", __func__);
1049
1050         /* Stop reading/writing urbs */
1051         for (i = 0; i < serial->num_ports; ++i) {
1052                 port = serial->port[i];
1053                 portdata = usb_get_serial_port_data(port);
1054                 for (j = 0; j < N_IN_URB; j++)
1055                         usb_kill_urb(portdata->in_urbs[j]);
1056                 for (j = 0; j < N_OUT_URB; j++)
1057                         usb_kill_urb(portdata->out_urbs[j]);
1058         }
1059
1060         /* Now free them */
1061         for (i = 0; i < serial->num_ports; ++i) {
1062                 port = serial->port[i];
1063                 portdata = usb_get_serial_port_data(port);
1064
1065                 for (j = 0; j < N_IN_URB; j++) {
1066                         if (portdata->in_urbs[j]) {
1067                                 usb_free_urb(portdata->in_urbs[j]);
1068                                 free_page((unsigned long)
1069                                         portdata->in_buffer[j]);
1070                                 portdata->in_urbs[j] = NULL;
1071                         }
1072                 }
1073                 for (j = 0; j < N_OUT_URB; j++) {
1074                         if (portdata->out_urbs[j]) {
1075                                 usb_free_urb(portdata->out_urbs[j]);
1076                                 kfree(portdata->out_buffer[j]);
1077                                 portdata->out_urbs[j] = NULL;
1078                         }
1079                 }
1080         }
1081
1082         /* Now free per port private data */
1083         for (i = 0; i < serial->num_ports; i++) {
1084                 port = serial->port[i];
1085                 kfree(usb_get_serial_port_data(port));
1086         }
1087 }
1088
1089 MODULE_AUTHOR(DRIVER_AUTHOR);
1090 MODULE_DESCRIPTION(DRIVER_DESC);
1091 MODULE_VERSION(DRIVER_VERSION);
1092 MODULE_LICENSE("GPL");
1093
1094 module_param(debug, bool, S_IRUGO | S_IWUSR);
1095 MODULE_PARM_DESC(debug, "Debug messages");