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         info(DRIVER_DESC ": " DRIVER_VERSION);
 526
 527         return 0;
 528
 529 failed_driver_register:
 530         usb_serial_deregister(&option_1port_device);
 531 failed_1port_device_register:
 532         return retval;
 533 }
 534
 535 static void __exit option_exit(void)
 536 {
 537         usb_deregister(&option_driver);
 538         usb_serial_deregister(&option_1port_device);
 539 }
 540
 541 module_init(option_init);
 542 module_exit(option_exit);
 543
 544 static void option_set_termios(struct tty_struct *tty,
 545                 struct usb_serial_port *port, struct ktermios *old_termios)
 546 {
 547         dbg("%s", __func__);
 548         /* Doesn't support option setting */
 549         tty_termios_copy_hw(tty->termios, old_termios);
 550         option_send_setup(tty, port);
 551 }
 552
 553 static int option_tiocmget(struct tty_struct *tty, struct file *file)
 554 {
 555         struct usb_serial_port *port = tty->driver_data;
 556         unsigned int value;
 557         struct option_port_private *portdata;
 558
 559         portdata = usb_get_serial_port_data(port);
 560
 561         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
 562                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
 563                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
 564                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
 565                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
 566                 ((portdata->ri_state) ? TIOCM_RNG : 0);
 567
 568         return value;
 569 }
 570
 571 static int option_tiocmset(struct tty_struct *tty, struct file *file,
 572                         unsigned int set, unsigned int clear)
 573 {
 574         struct usb_serial_port *port = tty->driver_data;
 575         struct option_port_private *portdata;
 576
 577         portdata = usb_get_serial_port_data(port);
 578
 579         /* FIXME: what locks portdata fields ? */
 580         if (set & TIOCM_RTS)
 581                 portdata->rts_state = 1;
 582         if (set & TIOCM_DTR)
 583                 portdata->dtr_state = 1;
 584
 585         if (clear & TIOCM_RTS)
 586                 portdata->rts_state = 0;
 587         if (clear & TIOCM_DTR)
 588                 portdata->dtr_state = 0;
 589         return option_send_setup(tty, port);
 590 }
 591
 592 /* Write */
 593 static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
 594                         const unsigned char *buf, int count)
 595 {
 596         struct option_port_private *portdata;
 597         int i;
 598         int left, todo;
 599         struct urb *this_urb = NULL; /* spurious */
 600         int err;
 601
 602         portdata = usb_get_serial_port_data(port);
 603
 604         dbg("%s: write (%d chars)", __func__, count);
 605
 606         i = 0;
 607         left = count;
 608         for (i = 0; left > 0 && i < N_OUT_URB; i++) {
 609                 todo = left;
 610                 if (todo > OUT_BUFLEN)
 611                         todo = OUT_BUFLEN;
 612
 613                 this_urb = portdata->out_urbs[i];
 614                 if (test_and_set_bit(i, &portdata->out_busy)) {
 615                         if (time_before(jiffies,
 616                                         portdata->tx_start_time[i] + 10 * HZ))
 617                                 continue;
 618                         usb_unlink_urb(this_urb);
 619                         continue;
 620                 }
 621                 if (this_urb->status != 0)
 622                         dbg("usb_write %p failed (err=%d)",
 623                                 this_urb, this_urb->status);
 624
 625                 dbg("%s: endpoint %d buf %d", __func__,
 626                         usb_pipeendpoint(this_urb->pipe), i);
 627
 628                 /* send the data */
 629                 memcpy(this_urb->transfer_buffer, buf, todo);
 630                 this_urb->transfer_buffer_length = todo;
 631
 632                 this_urb->dev = port->serial->dev;
 633                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 634                 if (err) {
 635                         dbg("usb_submit_urb %p (write bulk) failed "
 636                                 "(%d, has %d)", this_urb,
 637                                 err, this_urb->status);
 638                         clear_bit(i, &portdata->out_busy);
 639                         continue;
 640                 }
 641                 portdata->tx_start_time[i] = jiffies;
 642                 buf += todo;
 643                 left -= todo;
 644         }
 645
 646         count -= left;
 647         dbg("%s: wrote (did %d)", __func__, count);
 648         return count;
 649 }
 650
 651 static void option_indat_callback(struct urb *urb)
 652 {
 653         int err;
 654         int endpoint;
 655         struct usb_serial_port *port;
 656         struct tty_struct *tty;
 657         unsigned char *data = urb->transfer_buffer;
 658         int status = urb->status;
 659
 660         dbg("%s: %p", __func__, urb);
 661
 662         endpoint = usb_pipeendpoint(urb->pipe);
 663         port =  urb->context;
 664
 665         if (status) {
 666                 dbg("%s: nonzero status: %d on endpoint %02x.",
 667                     __func__, status, endpoint);
 668         } else {
 669                 tty = port->port.tty;
 670                 if (urb->actual_length) {
 671                         tty_buffer_request_room(tty, urb->actual_length);
 672                         tty_insert_flip_string(tty, data, urb->actual_length);
 673                         tty_flip_buffer_push(tty);
 674                 } else {
 675                         dbg("%s: empty read urb received", __func__);
 676                 }
 677
 678                 /* Resubmit urb so we continue receiving */
 679                 if (port->port.count && status != -ESHUTDOWN) {
 680                         err = usb_submit_urb(urb, GFP_ATOMIC);
 681                         if (err)
 682                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 683                                         "(%d)", __func__, err);
 684                 }
 685         }
 686         return;
 687 }
 688
 689 static void option_outdat_callback(struct urb *urb)
 690 {
 691         struct usb_serial_port *port;
 692         struct option_port_private *portdata;
 693         int i;
 694
 695         dbg("%s", __func__);
 696
 697         port =  urb->context;
 698
 699         usb_serial_port_softint(port);
 700
 701         portdata = usb_get_serial_port_data(port);
 702         for (i = 0; i < N_OUT_URB; ++i) {
 703                 if (portdata->out_urbs[i] == urb) {
 704                         smp_mb__before_clear_bit();
 705                         clear_bit(i, &portdata->out_busy);
 706                         break;
 707                 }
 708         }
 709 }
 710
 711 static void option_instat_callback(struct urb *urb)
 712 {
 713         int err;
 714         int status = urb->status;
 715         struct usb_serial_port *port =  urb->context;
 716         struct option_port_private *portdata = usb_get_serial_port_data(port);
 717         struct usb_serial *serial = port->serial;
 718
 719         dbg("%s", __func__);
 720         dbg("%s: urb %p port %p has data %p", __func__, urb, port, portdata);
 721
 722         if (status == 0) {
 723                 struct usb_ctrlrequest *req_pkt =
 724                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 725
 726                 if (!req_pkt) {
 727                         dbg("%s: NULL req_pkt\n", __func__);
 728                         return;
 729                 }
 730                 if ((req_pkt->bRequestType == 0xA1) &&
 731                                 (req_pkt->bRequest == 0x20)) {
 732                         int old_dcd_state;
 733                         unsigned char signals = *((unsigned char *)
 734                                         urb->transfer_buffer +
 735                                         sizeof(struct usb_ctrlrequest));
 736
 737                         dbg("%s: signal x%x", __func__, signals);
 738
 739                         old_dcd_state = portdata->dcd_state;
 740                         portdata->cts_state = 1;
 741                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 742                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 743                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 744
 745                         if (port->port.tty && !C_CLOCAL(port->port.tty) &&
 746                                         old_dcd_state && !portdata->dcd_state)
 747                                 tty_hangup(port->port.tty);
 748                 } else {
 749                         dbg("%s: type %x req %x", __func__,
 750                                 req_pkt->bRequestType, req_pkt->bRequest);
 751                 }
 752         } else
 753                 dbg("%s: error %d", __func__, status);
 754
 755         /* Resubmit urb so we continue receiving IRQ data */
 756         if (status != -ESHUTDOWN) {
 757                 urb->dev = serial->dev;
 758                 err = usb_submit_urb(urb, GFP_ATOMIC);
 759                 if (err)
 760                         dbg("%s: resubmit intr urb failed. (%d)",
 761                                 __func__, err);
 762         }
 763 }
 764
 765 static int option_write_room(struct tty_struct *tty)
 766 {
 767         struct usb_serial_port *port = tty->driver_data;
 768         struct option_port_private *portdata;
 769         int i;
 770         int data_len = 0;
 771         struct urb *this_urb;
 772
 773         portdata = usb_get_serial_port_data(port);
 774
 775
 776         for (i = 0; i < N_OUT_URB; i++) {
 777                 this_urb = portdata->out_urbs[i];
 778                 if (this_urb && !test_bit(i, &portdata->out_busy))
 779                         data_len += OUT_BUFLEN;
 780         }
 781
 782         dbg("%s: %d", __func__, data_len);
 783         return data_len;
 784 }
 785
 786 static int option_chars_in_buffer(struct tty_struct *tty)
 787 {
 788         struct usb_serial_port *port = tty->driver_data;
 789         struct option_port_private *portdata;
 790         int i;
 791         int data_len = 0;
 792         struct urb *this_urb;
 793
 794         portdata = usb_get_serial_port_data(port);
 795
 796         for (i = 0; i < N_OUT_URB; i++) {
 797                 this_urb = portdata->out_urbs[i];
 798                 /* FIXME: This locking is insufficient as this_urb may
 799                    go unused during the test */
 800                 if (this_urb && test_bit(i, &portdata->out_busy))
 801                         data_len += this_urb->transfer_buffer_length;
 802         }
 803         dbg("%s: %d", __func__, data_len);
 804         return data_len;
 805 }
 806
 807 static int option_open(struct tty_struct *tty,
 808                         struct usb_serial_port *port, struct file *filp)
 809 {
 810         struct option_port_private *portdata;
 811         struct usb_serial *serial = port->serial;
 812         int i, err;
 813         struct urb *urb;
 814
 815         portdata = usb_get_serial_port_data(port);
 816
 817         dbg("%s", __func__);
 818
 819         /* Set some sane defaults */
 820         portdata->rts_state = 1;
 821         portdata->dtr_state = 1;
 822
 823         /* Reset low level data toggle and start reading from endpoints */
 824         for (i = 0; i < N_IN_URB; i++) {
 825                 urb = portdata->in_urbs[i];
 826                 if (!urb)
 827                         continue;
 828                 if (urb->dev != serial->dev) {
 829                         dbg("%s: dev %p != %p", __func__,
 830                                 urb->dev, serial->dev);
 831                         continue;
 832                 }
 833
 834                 /*
 835                  * make sure endpoint data toggle is synchronized with the
 836                  * device
 837                  */
 838                 usb_clear_halt(urb->dev, urb->pipe);
 839
 840                 err = usb_submit_urb(urb, GFP_KERNEL);
 841                 if (err) {
 842                         dbg("%s: submit urb %d failed (%d) %d",
 843                                 __func__, i, err,
 844                                 urb->transfer_buffer_length);
 845                 }
 846         }
 847
 848         /* Reset low level data toggle on out endpoints */
 849         for (i = 0; i < N_OUT_URB; i++) {
 850                 urb = portdata->out_urbs[i];
 851                 if (!urb)
 852                         continue;
 853                 urb->dev = serial->dev;
 854                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 855                                 usb_pipeout(urb->pipe), 0); */
 856         }
 857
 858         if (tty)
 859                 tty->low_latency = 1;
 860
 861         option_send_setup(tty, port);
 862
 863         return 0;
 864 }
 865
 866 static void option_close(struct tty_struct *tty,
 867                         struct usb_serial_port *port, struct file *filp)
 868 {
 869         int i;
 870         struct usb_serial *serial = port->serial;
 871         struct option_port_private *portdata;
 872
 873         dbg("%s", __func__);
 874         portdata = usb_get_serial_port_data(port);
 875
 876         portdata->rts_state = 0;
 877         portdata->dtr_state = 0;
 878
 879         if (serial->dev) {
 880                 mutex_lock(&serial->disc_mutex);
 881                 if (!serial->disconnected)
 882                         option_send_setup(tty, port);
 883                 mutex_unlock(&serial->disc_mutex);
 884
 885                 /* Stop reading/writing urbs */
 886                 for (i = 0; i < N_IN_URB; i++)
 887                         usb_kill_urb(portdata->in_urbs[i]);
 888                 for (i = 0; i < N_OUT_URB; i++)
 889                         usb_kill_urb(portdata->out_urbs[i]);
 890         }
 891         port->port.tty = NULL;  /* FIXME */
 892 }
 893
 894 /* Helper functions used by option_setup_urbs */
 895 static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
 896                 int dir, void *ctx, char *buf, int len,
 897                 void (*callback)(struct urb *))
 898 {
 899         struct urb *urb;
 900
 901         if (endpoint == -1)
 902                 return NULL;            /* endpoint not needed */
 903
 904         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 905         if (urb == NULL) {
 906                 dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
 907                 return NULL;
 908         }
 909
 910                 /* Fill URB using supplied data. */
 911         usb_fill_bulk_urb(urb, serial->dev,
 912                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 913                       buf, len, callback, ctx);
 914
 915         return urb;
 916 }
 917
 918 /* Setup urbs */
 919 static void option_setup_urbs(struct usb_serial *serial)
 920 {
 921         int i, j;
 922         struct usb_serial_port *port;
 923         struct option_port_private *portdata;
 924
 925         dbg("%s", __func__);
 926
 927         for (i = 0; i < serial->num_ports; i++) {
 928                 port = serial->port[i];
 929                 portdata = usb_get_serial_port_data(port);
 930
 931                 /* Do indat endpoints first */
 932                 for (j = 0; j < N_IN_URB; ++j) {
 933                         portdata->in_urbs[j] = option_setup_urb(serial,
 934                                         port->bulk_in_endpointAddress,
 935                                         USB_DIR_IN, port,
 936                                         portdata->in_buffer[j],
 937                                         IN_BUFLEN, option_indat_callback);
 938                 }
 939
 940                 /* outdat endpoints */
 941                 for (j = 0; j < N_OUT_URB; ++j) {
 942                         portdata->out_urbs[j] = option_setup_urb(serial,
 943                                         port->bulk_out_endpointAddress,
 944                                         USB_DIR_OUT, port,
 945                                         portdata->out_buffer[j],
 946                                         OUT_BUFLEN, option_outdat_callback);
 947                 }
 948         }
 949 }
 950
 951
 952 /** send RTS/DTR state to the port.
 953  *
 954  * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
 955  * CDC.
 956 */
 957 static int option_send_setup(struct tty_struct *tty,
 958                                                 struct usb_serial_port *port)
 959 {
 960         struct usb_serial *serial = port->serial;
 961         struct option_port_private *portdata;
 962         int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
 963         dbg("%s", __func__);
 964
 965         portdata = usb_get_serial_port_data(port);
 966
 967         if (tty) {
 968                 int val = 0;
 969                 if (portdata->dtr_state)
 970                         val |= 0x01;
 971                 if (portdata->rts_state)
 972                         val |= 0x02;
 973
 974                 return usb_control_msg(serial->dev,
 975                         usb_rcvctrlpipe(serial->dev, 0),
 976                         0x22, 0x21, val, ifNum, NULL, 0, USB_CTRL_SET_TIMEOUT);
 977         }
 978         return 0;
 979 }
 980
 981 static int option_startup(struct usb_serial *serial)
 982 {
 983         int i, j, err;
 984         struct usb_serial_port *port;
 985         struct option_port_private *portdata;
 986         u8 *buffer;
 987
 988         dbg("%s", __func__);
 989
 990         /* Now setup per port private data */
 991         for (i = 0; i < serial->num_ports; i++) {
 992                 port = serial->port[i];
 993                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
 994                 if (!portdata) {
 995                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
 996                                         __func__, i);
 997                         return 1;
 998                 }
 999
1000                 for (j = 0; j < N_IN_URB; j++) {
1001                         buffer = (u8 *)__get_free_page(GFP_KERNEL);
1002                         if (!buffer)
1003                                 goto bail_out_error;
1004                         portdata->in_buffer[j] = buffer;
1005                 }
1006
1007                 for (j = 0; j < N_OUT_URB; j++) {
1008                         buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
1009                         if (!buffer)
1010                                 goto bail_out_error2;
1011                         portdata->out_buffer[j] = buffer;
1012                 }
1013
1014                 usb_set_serial_port_data(port, portdata);
1015
1016                 if (!port->interrupt_in_urb)
1017                         continue;
1018                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
1019                 if (err)
1020                         dbg("%s: submit irq_in urb failed %d",
1021                                 __func__, err);
1022         }
1023         option_setup_urbs(serial);
1024         return 0;
1025
1026 bail_out_error2:
1027         for (j = 0; j < N_OUT_URB; j++)
1028                 kfree(portdata->out_buffer[j]);
1029 bail_out_error:
1030         for (j = 0; j < N_IN_URB; j++)
1031                 if (portdata->in_buffer[j])
1032                         free_page((unsigned long)portdata->in_buffer[j]);
1033         kfree(portdata);
1034         return 1;
1035 }
1036
1037 static void option_shutdown(struct usb_serial *serial)
1038 {
1039         int i, j;
1040         struct usb_serial_port *port;
1041         struct option_port_private *portdata;
1042
1043         dbg("%s", __func__);
1044
1045         /* Stop reading/writing urbs */
1046         for (i = 0; i < serial->num_ports; ++i) {
1047                 port = serial->port[i];
1048                 portdata = usb_get_serial_port_data(port);
1049                 for (j = 0; j < N_IN_URB; j++)
1050                         usb_kill_urb(portdata->in_urbs[j]);
1051                 for (j = 0; j < N_OUT_URB; j++)
1052                         usb_kill_urb(portdata->out_urbs[j]);
1053         }
1054
1055         /* Now free them */
1056         for (i = 0; i < serial->num_ports; ++i) {
1057                 port = serial->port[i];
1058                 portdata = usb_get_serial_port_data(port);
1059
1060                 for (j = 0; j < N_IN_URB; j++) {
1061                         if (portdata->in_urbs[j]) {
1062                                 usb_free_urb(portdata->in_urbs[j]);
1063                                 free_page((unsigned long)
1064                                         portdata->in_buffer[j]);
1065                                 portdata->in_urbs[j] = NULL;
1066                         }
1067                 }
1068                 for (j = 0; j < N_OUT_URB; j++) {
1069                         if (portdata->out_urbs[j]) {
1070                                 usb_free_urb(portdata->out_urbs[j]);
1071                                 kfree(portdata->out_buffer[j]);
1072                                 portdata->out_urbs[j] = NULL;
1073                         }
1074                 }
1075         }
1076
1077         /* Now free per port private data */
1078         for (i = 0; i < serial->num_ports; i++) {
1079                 port = serial->port[i];
1080                 kfree(usb_get_serial_port_data(port));
1081         }
1082 }
1083
1084 MODULE_AUTHOR(DRIVER_AUTHOR);
1085 MODULE_DESCRIPTION(DRIVER_DESC);
1086 MODULE_VERSION(DRIVER_VERSION);
1087 MODULE_LICENSE("GPL");
1088
1089 module_param(debug, bool, S_IRUGO | S_IWUSR);
1090 MODULE_PARM_DESC(debug, "Debug messages");