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 usb_serial_port *port, struct file *filp);
  47 static void option_close(struct usb_serial_port *port, struct file *filp);
  48 static int  option_startup(struct usb_serial *serial);
  49 static void option_shutdown(struct usb_serial *serial);
  50 static void option_rx_throttle(struct usb_serial_port *port);
  51 static void option_rx_unthrottle(struct usb_serial_port *port);
  52 static int  option_write_room(struct usb_serial_port *port);
  53
  54 static void option_instat_callback(struct urb *urb);
  55
  56 static int option_write(struct usb_serial_port *port,
  57                         const unsigned char *buf, int count);
  58
  59 static int  option_chars_in_buffer(struct usb_serial_port *port);
  60 static int  option_ioctl(struct usb_serial_port *port, struct file *file,
  61                         unsigned int cmd, unsigned long arg);
  62 static void option_set_termios(struct usb_serial_port *port,
  63                                 struct ktermios *old);
  64 static void option_break_ctl(struct usb_serial_port *port, int break_state);
  65 static int  option_tiocmget(struct usb_serial_port *port, struct file *file);
  66 static int  option_tiocmset(struct usb_serial_port *port, struct file *file,
  67                                 unsigned int set, unsigned int clear);
  68 static int  option_send_setup(struct usb_serial_port *port);
  69
  70 /* Vendor and product IDs */
  71 #define OPTION_VENDOR_ID                        0x0AF0
  72 #define OPTION_PRODUCT_COLT                     0x5000
  73 #define OPTION_PRODUCT_RICOLA                   0x6000
  74 #define OPTION_PRODUCT_RICOLA_LIGHT             0x6100
  75 #define OPTION_PRODUCT_RICOLA_QUAD              0x6200
  76 #define OPTION_PRODUCT_RICOLA_QUAD_LIGHT        0x6300
  77 #define OPTION_PRODUCT_RICOLA_NDIS              0x6050
  78 #define OPTION_PRODUCT_RICOLA_NDIS_LIGHT        0x6150
  79 #define OPTION_PRODUCT_RICOLA_NDIS_QUAD         0x6250
  80 #define OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT   0x6350
  81 #define OPTION_PRODUCT_COBRA                    0x6500
  82 #define OPTION_PRODUCT_COBRA_BUS                0x6501
  83 #define OPTION_PRODUCT_VIPER                    0x6600
  84 #define OPTION_PRODUCT_VIPER_BUS                0x6601
  85 #define OPTION_PRODUCT_GT_MAX_READY             0x6701
  86 #define OPTION_PRODUCT_GT_MAX                   0x6711
  87 #define OPTION_PRODUCT_FUJI_MODEM_LIGHT         0x6721
  88 #define OPTION_PRODUCT_FUJI_MODEM_GT            0x6741
  89 #define OPTION_PRODUCT_FUJI_MODEM_EX            0x6761
  90 #define OPTION_PRODUCT_FUJI_NETWORK_LIGHT       0x6731
  91 #define OPTION_PRODUCT_FUJI_NETWORK_GT          0x6751
  92 #define OPTION_PRODUCT_FUJI_NETWORK_EX          0x6771
  93 #define OPTION_PRODUCT_KOI_MODEM                0x6800
  94 #define OPTION_PRODUCT_KOI_NETWORK              0x6811
  95 #define OPTION_PRODUCT_SCORPION_MODEM           0x6901
  96 #define OPTION_PRODUCT_SCORPION_NETWORK         0x6911
  97 #define OPTION_PRODUCT_ETNA_MODEM               0x7001
  98 #define OPTION_PRODUCT_ETNA_NETWORK             0x7011
  99 #define OPTION_PRODUCT_ETNA_MODEM_LITE          0x7021
 100 #define OPTION_PRODUCT_ETNA_MODEM_GT            0x7041
 101 #define OPTION_PRODUCT_ETNA_MODEM_EX            0x7061
 102 #define OPTION_PRODUCT_ETNA_NETWORK_LITE        0x7031
 103 #define OPTION_PRODUCT_ETNA_NETWORK_GT          0x7051
 104 #define OPTION_PRODUCT_ETNA_NETWORK_EX          0x7071
 105 #define OPTION_PRODUCT_ETNA_KOI_MODEM           0x7100
 106 #define OPTION_PRODUCT_ETNA_KOI_NETWORK         0x7111
 107
 108 #define HUAWEI_VENDOR_ID                        0x12D1
 109 #define HUAWEI_PRODUCT_E600                     0x1001
 110 #define HUAWEI_PRODUCT_E220                     0x1003
 111 #define HUAWEI_PRODUCT_E220BIS                  0x1004
 112 #define HUAWEI_PRODUCT_E1401                    0x1401
 113 #define HUAWEI_PRODUCT_E1403                    0x1403
 114 #define HUAWEI_PRODUCT_E1405                    0x1405
 115 #define HUAWEI_PRODUCT_E1406                    0x1406
 116 #define HUAWEI_PRODUCT_E1408                    0x1408
 117 #define HUAWEI_PRODUCT_E1409                    0x1409
 118 #define HUAWEI_PRODUCT_E1410                    0x1410
 119 #define HUAWEI_PRODUCT_E1411                    0x1411
 120 #define HUAWEI_PRODUCT_E1412                    0x1412
 121 #define HUAWEI_PRODUCT_E1413                    0x1413
 122 #define HUAWEI_PRODUCT_E1414                    0x1414
 123 #define HUAWEI_PRODUCT_E1415                    0x1415
 124 #define HUAWEI_PRODUCT_E1416                    0x1416
 125 #define HUAWEI_PRODUCT_E1417                    0x1417
 126 #define HUAWEI_PRODUCT_E1418                    0x1418
 127 #define HUAWEI_PRODUCT_E1419                    0x1419
 128
 129 #define NOVATELWIRELESS_VENDOR_ID               0x1410
 130
 131 /* MERLIN EVDO PRODUCTS */
 132 #define NOVATELWIRELESS_PRODUCT_V640            0x1100
 133 #define NOVATELWIRELESS_PRODUCT_V620            0x1110
 134 #define NOVATELWIRELESS_PRODUCT_V740            0x1120
 135 #define NOVATELWIRELESS_PRODUCT_V720            0x1130
 136
 137 /* MERLIN HSDPA/HSPA PRODUCTS */
 138 #define NOVATELWIRELESS_PRODUCT_U730            0x1400
 139 #define NOVATELWIRELESS_PRODUCT_U740            0x1410
 140 #define NOVATELWIRELESS_PRODUCT_U870            0x1420
 141 #define NOVATELWIRELESS_PRODUCT_XU870           0x1430
 142 #define NOVATELWIRELESS_PRODUCT_X950D           0x1450
 143
 144 /* EXPEDITE PRODUCTS */
 145 #define NOVATELWIRELESS_PRODUCT_EV620           0x2100
 146 #define NOVATELWIRELESS_PRODUCT_ES720           0x2110
 147 #define NOVATELWIRELESS_PRODUCT_E725            0x2120
 148 #define NOVATELWIRELESS_PRODUCT_ES620           0x2130
 149 #define NOVATELWIRELESS_PRODUCT_EU730           0x2400
 150 #define NOVATELWIRELESS_PRODUCT_EU740           0x2410
 151 #define NOVATELWIRELESS_PRODUCT_EU870D          0x2420
 152
 153 /* OVATION PRODUCTS */
 154 #define NOVATELWIRELESS_PRODUCT_MC727           0x4100
 155 #define NOVATELWIRELESS_PRODUCT_MC950D          0x4400
 156
 157 /* FUTURE NOVATEL PRODUCTS */
 158 #define NOVATELWIRELESS_PRODUCT_EVDO_1          0x6000
 159 #define NOVATELWIRELESS_PRODUCT_HSPA_1          0x7000
 160 #define NOVATELWIRELESS_PRODUCT_EMBEDDED_1      0x8000
 161 #define NOVATELWIRELESS_PRODUCT_GLOBAL_1        0x9000
 162 #define NOVATELWIRELESS_PRODUCT_EVDO_2          0x6001
 163 #define NOVATELWIRELESS_PRODUCT_HSPA_2          0x7001
 164 #define NOVATELWIRELESS_PRODUCT_EMBEDDED_2      0x8001
 165 #define NOVATELWIRELESS_PRODUCT_GLOBAL_2        0x9001
 166
 167 /* AMOI PRODUCTS */
 168 #define AMOI_VENDOR_ID                          0x1614
 169 #define AMOI_PRODUCT_H01                        0x0800
 170 #define AMOI_PRODUCT_H01A                       0x7002
 171 #define AMOI_PRODUCT_H02                        0x0802
 172
 173 #define DELL_VENDOR_ID                          0x413C
 174
 175 #define KYOCERA_VENDOR_ID                       0x0c88
 176 #define KYOCERA_PRODUCT_KPC680                  0x180a
 177
 178 #define ANYDATA_VENDOR_ID                       0x16d5
 179 #define ANYDATA_PRODUCT_ADU_E100A               0x6501
 180 #define ANYDATA_PRODUCT_ADU_500A                0x6502
 181
 182 #define AXESSTEL_VENDOR_ID                      0x1726
 183 #define AXESSTEL_PRODUCT_MV110H                 0x1000
 184
 185 #define ONDA_VENDOR_ID                          0x19d2
 186 #define ONDA_PRODUCT_MSA501HS                   0x0001
 187 #define ONDA_PRODUCT_ET502HS                    0x0002
 188
 189 #define BANDRICH_VENDOR_ID                      0x1A8D
 190 #define BANDRICH_PRODUCT_C100_1                 0x1002
 191 #define BANDRICH_PRODUCT_C100_2                 0x1003
 192
 193 #define AMOI_VENDOR_ID                  0x1614
 194 #define AMOI_PRODUCT_9508                       0x0800
 195
 196 #define QUALCOMM_VENDOR_ID                      0x05C6
 197
 198 #define MAXON_VENDOR_ID                         0x16d8
 199
 200 #define TELIT_VENDOR_ID                         0x1bc7
 201 #define TELIT_PRODUCT_UC864E                    0x1003
 202
 203 static struct usb_device_id option_ids[] = {
 204         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
 205         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
 206         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
 207         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD) },
 208         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD_LIGHT) },
 209         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS) },
 210         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_LIGHT) },
 211         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD) },
 212         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT) },
 213         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
 214         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA_BUS) },
 215         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER) },
 216         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER_BUS) },
 217         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX_READY) },
 218         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX) },
 219         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_LIGHT) },
 220         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_GT) },
 221         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_EX) },
 222         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_LIGHT) },
 223         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_GT) },
 224         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_EX) },
 225         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_MODEM) },
 226         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_NETWORK) },
 227         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_MODEM) },
 228         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_NETWORK) },
 229         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM) },
 230         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK) },
 231         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_LITE) },
 232         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) },
 233         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) },
 234         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_LITE) },
 235         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_GT) },
 236         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_EX) },
 237         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) },
 238         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_NETWORK) },
 239         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600, 0xff, 0xff, 0xff) },
 240         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220, 0xff, 0xff, 0xff) },
 241         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS, 0xff, 0xff, 0xff) },
 242         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1401, 0xff, 0xff, 0xff) },
 243         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1403, 0xff, 0xff, 0xff) },
 244         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1405, 0xff, 0xff, 0xff) },
 245         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1406, 0xff, 0xff, 0xff) },
 246         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1408, 0xff, 0xff, 0xff) },
 247         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1409, 0xff, 0xff, 0xff) },
 248         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1410, 0xff, 0xff, 0xff) },
 249         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1411, 0xff, 0xff, 0xff) },
 250         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1412, 0xff, 0xff, 0xff) },
 251         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1413, 0xff, 0xff, 0xff) },
 252         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1414, 0xff, 0xff, 0xff) },
 253         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1415, 0xff, 0xff, 0xff) },
 254         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1416, 0xff, 0xff, 0xff) },
 255         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1417, 0xff, 0xff, 0xff) },
 256         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1418, 0xff, 0xff, 0xff) },
 257         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1419, 0xff, 0xff, 0xff) },
 258         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_9508) },
 259         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */
 260         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */
 261         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) }, /* Novatel Merlin EX720/V740/X720 */
 262         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V720) }, /* Novatel Merlin V720/S720/PC720 */
 263         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U730) }, /* Novatel U730/U740 (VF version) */
 264         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U740) }, /* Novatel U740 */
 265         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U870) }, /* Novatel U870 */
 266         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_XU870) }, /* Novatel Merlin XU870 HSDPA/3G */
 267         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_X950D) }, /* Novatel X950D */
 268         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EV620) }, /* Novatel EV620/ES620 CDMA/EV-DO */
 269         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES720) }, /* Novatel ES620/ES720/U720/USB720 */
 270         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E725) }, /* Novatel E725/E726 */
 271         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES620) }, /* Novatel Merlin ES620 SM Bus */
 272         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU730) }, /* Novatel EU730 and Vodafone EU740 */
 273         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU740) }, /* Novatel non-Vodafone EU740 */
 274         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) }, /* Novatel EU850D/EU860D/EU870D */
 275         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) }, /* Novatel MC930D/MC950D */
 276         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) }, /* Novatel MC727/U727/USB727 */
 277         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_1) }, /* Novatel EVDO product */
 278         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_1) }, /* Novatel HSPA product */
 279         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_1) }, /* Novatel Embedded product */
 280         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_1) }, /* Novatel Global product */
 281         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_2) }, /* Novatel EVDO product */
 282         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_2) }, /* Novatel HSPA product */
 283         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_2) }, /* Novatel Embedded product */
 284         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_2) }, /* Novatel Global product */
 285
 286         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01) },
 287         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01A) },
 288         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H02) },
 289
 290         { USB_DEVICE(DELL_VENDOR_ID, 0x8114) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */
 291         { USB_DEVICE(DELL_VENDOR_ID, 0x8115) }, /* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 292         { USB_DEVICE(DELL_VENDOR_ID, 0x8116) }, /* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
 293         { USB_DEVICE(DELL_VENDOR_ID, 0x8117) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO ExpressCard == Novatel Merlin XV620 CDMA/EV-DO */
 294         { USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard == Novatel Merlin XU870 HSDPA/3G */
 295         { USB_DEVICE(DELL_VENDOR_ID, 0x8128) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite E720 CDMA/EV-DO */
 296         { USB_DEVICE(DELL_VENDOR_ID, 0x8129) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite ET620 CDMA/EV-DO */
 297         { USB_DEVICE(DELL_VENDOR_ID, 0x8133) }, /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
 298         { USB_DEVICE(DELL_VENDOR_ID, 0x8136) }, /* Dell Wireless HSDPA 5520 == Novatel Expedite EU860D */
 299         { USB_DEVICE(DELL_VENDOR_ID, 0x8137) }, /* Dell Wireless HSDPA 5520 */
 300         { USB_DEVICE(DELL_VENDOR_ID, 0x8138) }, /* Dell Wireless 5520 Voda I Mobile Broadband (3G HSDPA) Minicard */
 301         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },
 302         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
 303         { USB_DEVICE(AXESSTEL_VENDOR_ID, AXESSTEL_PRODUCT_MV110H) },
 304         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_MSA501HS) },
 305         { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_ET502HS) },
 306         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
 307         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
 308         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
 309         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */
 310         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
 311         { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */
 312         { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864E) },
 313         { } /* Terminating entry */
 314 };
 315 MODULE_DEVICE_TABLE(usb, option_ids);
 316
 317 static struct usb_driver option_driver = {
 318         .name       = "option",
 319         .probe      = usb_serial_probe,
 320         .disconnect = usb_serial_disconnect,
 321         .id_table   = option_ids,
 322         .no_dynamic_id =        1,
 323 };
 324
 325 /* The card has three separate interfaces, which the serial driver
 326  * recognizes separately, thus num_port=1.
 327  */
 328
 329 static struct usb_serial_driver option_1port_device = {
 330         .driver = {
 331                 .owner =        THIS_MODULE,
 332                 .name =         "option1",
 333         },
 334         .description       = "GSM modem (1-port)",
 335         .usb_driver        = &option_driver,
 336         .id_table          = option_ids,
 337         .num_ports         = 1,
 338         .open              = option_open,
 339         .close             = option_close,
 340         .write             = option_write,
 341         .write_room        = option_write_room,
 342         .chars_in_buffer   = option_chars_in_buffer,
 343         .throttle          = option_rx_throttle,
 344         .unthrottle        = option_rx_unthrottle,
 345         .ioctl             = option_ioctl,
 346         .set_termios       = option_set_termios,
 347         .break_ctl         = option_break_ctl,
 348         .tiocmget          = option_tiocmget,
 349         .tiocmset          = option_tiocmset,
 350         .attach            = option_startup,
 351         .shutdown          = option_shutdown,
 352         .read_int_callback = option_instat_callback,
 353 };
 354
 355 #ifdef CONFIG_USB_DEBUG
 356 static int debug;
 357 #else
 358 #define debug 0
 359 #endif
 360
 361 /* per port private data */
 362
 363 #define N_IN_URB 4
 364 #define N_OUT_URB 1
 365 #define IN_BUFLEN 4096
 366 #define OUT_BUFLEN 128
 367
 368 struct option_port_private {
 369         /* Input endpoints and buffer for this port */
 370         struct urb *in_urbs[N_IN_URB];
 371         u8 *in_buffer[N_IN_URB];
 372         /* Output endpoints and buffer for this port */
 373         struct urb *out_urbs[N_OUT_URB];
 374         u8 *out_buffer[N_OUT_URB];
 375         unsigned long out_busy;         /* Bit vector of URBs in use */
 376
 377         /* Settings for the port */
 378         int rts_state;  /* Handshaking pins (outputs) */
 379         int dtr_state;
 380         int cts_state;  /* Handshaking pins (inputs) */
 381         int dsr_state;
 382         int dcd_state;
 383         int ri_state;
 384
 385         unsigned long tx_start_time[N_OUT_URB];
 386 };
 387
 388 /* Functions used by new usb-serial code. */
 389 static int __init option_init(void)
 390 {
 391         int retval;
 392         retval = usb_serial_register(&option_1port_device);
 393         if (retval)
 394                 goto failed_1port_device_register;
 395         retval = usb_register(&option_driver);
 396         if (retval)
 397                 goto failed_driver_register;
 398
 399         info(DRIVER_DESC ": " DRIVER_VERSION);
 400
 401         return 0;
 402
 403 failed_driver_register:
 404         usb_serial_deregister (&option_1port_device);
 405 failed_1port_device_register:
 406         return retval;
 407 }
 408
 409 static void __exit option_exit(void)
 410 {
 411         usb_deregister (&option_driver);
 412         usb_serial_deregister (&option_1port_device);
 413 }
 414
 415 module_init(option_init);
 416 module_exit(option_exit);
 417
 418 static void option_rx_throttle(struct usb_serial_port *port)
 419 {
 420         dbg("%s", __func__);
 421 }
 422
 423 static void option_rx_unthrottle(struct usb_serial_port *port)
 424 {
 425         dbg("%s", __func__);
 426 }
 427
 428 static void option_break_ctl(struct usb_serial_port *port, int break_state)
 429 {
 430         /* Unfortunately, I don't know how to send a break */
 431         dbg("%s", __func__);
 432 }
 433
 434 static void option_set_termios(struct usb_serial_port *port,
 435                         struct ktermios *old_termios)
 436 {
 437         dbg("%s", __func__);
 438         /* Doesn't support option setting */
 439         tty_termios_copy_hw(port->tty->termios, old_termios);
 440         option_send_setup(port);
 441 }
 442
 443 static int option_tiocmget(struct usb_serial_port *port, struct file *file)
 444 {
 445         unsigned int value;
 446         struct option_port_private *portdata;
 447
 448         portdata = usb_get_serial_port_data(port);
 449
 450         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
 451                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
 452                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
 453                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
 454                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
 455                 ((portdata->ri_state) ? TIOCM_RNG : 0);
 456
 457         return value;
 458 }
 459
 460 static int option_tiocmset(struct usb_serial_port *port, struct file *file,
 461                         unsigned int set, unsigned int clear)
 462 {
 463         struct option_port_private *portdata;
 464
 465         portdata = usb_get_serial_port_data(port);
 466
 467         /* FIXME: what locks portdata fields ? */
 468         if (set & TIOCM_RTS)
 469                 portdata->rts_state = 1;
 470         if (set & TIOCM_DTR)
 471                 portdata->dtr_state = 1;
 472
 473         if (clear & TIOCM_RTS)
 474                 portdata->rts_state = 0;
 475         if (clear & TIOCM_DTR)
 476                 portdata->dtr_state = 0;
 477         return option_send_setup(port);
 478 }
 479
 480 static int option_ioctl(struct usb_serial_port *port, struct file *file,
 481                         unsigned int cmd, unsigned long arg)
 482 {
 483         return -ENOIOCTLCMD;
 484 }
 485
 486 /* Write */
 487 static int option_write(struct usb_serial_port *port,
 488                         const unsigned char *buf, int count)
 489 {
 490         struct option_port_private *portdata;
 491         int i;
 492         int left, todo;
 493         struct urb *this_urb = NULL; /* spurious */
 494         int err;
 495
 496         portdata = usb_get_serial_port_data(port);
 497
 498         dbg("%s: write (%d chars)", __func__, count);
 499
 500         i = 0;
 501         left = count;
 502         for (i=0; left > 0 && i < N_OUT_URB; i++) {
 503                 todo = left;
 504                 if (todo > OUT_BUFLEN)
 505                         todo = OUT_BUFLEN;
 506
 507                 this_urb = portdata->out_urbs[i];
 508                 if (test_and_set_bit(i, &portdata->out_busy)) {
 509                         if (time_before(jiffies,
 510                                         portdata->tx_start_time[i] + 10 * HZ))
 511                                 continue;
 512                         usb_unlink_urb(this_urb);
 513                         continue;
 514                 }
 515                 if (this_urb->status != 0)
 516                         dbg("usb_write %p failed (err=%d)",
 517                                 this_urb, this_urb->status);
 518
 519                 dbg("%s: endpoint %d buf %d", __func__,
 520                         usb_pipeendpoint(this_urb->pipe), i);
 521
 522                 /* send the data */
 523                 memcpy (this_urb->transfer_buffer, buf, todo);
 524                 this_urb->transfer_buffer_length = todo;
 525
 526                 this_urb->dev = port->serial->dev;
 527                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
 528                 if (err) {
 529                         dbg("usb_submit_urb %p (write bulk) failed "
 530                                 "(%d, has %d)", this_urb,
 531                                 err, this_urb->status);
 532                         clear_bit(i, &portdata->out_busy);
 533                         continue;
 534                 }
 535                 portdata->tx_start_time[i] = jiffies;
 536                 buf += todo;
 537                 left -= todo;
 538         }
 539
 540         count -= left;
 541         dbg("%s: wrote (did %d)", __func__, count);
 542         return count;
 543 }
 544
 545 static void option_indat_callback(struct urb *urb)
 546 {
 547         int err;
 548         int endpoint;
 549         struct usb_serial_port *port;
 550         struct tty_struct *tty;
 551         unsigned char *data = urb->transfer_buffer;
 552         int status = urb->status;
 553
 554         dbg("%s: %p", __func__, urb);
 555
 556         endpoint = usb_pipeendpoint(urb->pipe);
 557         port =  urb->context;
 558
 559         if (status) {
 560                 dbg("%s: nonzero status: %d on endpoint %02x.",
 561                     __func__, status, endpoint);
 562         } else {
 563                 tty = port->tty;
 564                 if (urb->actual_length) {
 565                         tty_buffer_request_room(tty, urb->actual_length);
 566                         tty_insert_flip_string(tty, data, urb->actual_length);
 567                         tty_flip_buffer_push(tty);
 568                 } else {
 569                         dbg("%s: empty read urb received", __func__);
 570                 }
 571
 572                 /* Resubmit urb so we continue receiving */
 573                 if (port->open_count && status != -ESHUTDOWN) {
 574                         err = usb_submit_urb(urb, GFP_ATOMIC);
 575                         if (err)
 576                                 printk(KERN_ERR "%s: resubmit read urb failed. "
 577                                         "(%d)", __func__, err);
 578                 }
 579         }
 580         return;
 581 }
 582
 583 static void option_outdat_callback(struct urb *urb)
 584 {
 585         struct usb_serial_port *port;
 586         struct option_port_private *portdata;
 587         int i;
 588
 589         dbg("%s", __func__);
 590
 591         port =  urb->context;
 592
 593         usb_serial_port_softint(port);
 594
 595         portdata = usb_get_serial_port_data(port);
 596         for (i = 0; i < N_OUT_URB; ++i) {
 597                 if (portdata->out_urbs[i] == urb) {
 598                         smp_mb__before_clear_bit();
 599                         clear_bit(i, &portdata->out_busy);
 600                         break;
 601                 }
 602         }
 603 }
 604
 605 static void option_instat_callback(struct urb *urb)
 606 {
 607         int err;
 608         int status = urb->status;
 609         struct usb_serial_port *port =  urb->context;
 610         struct option_port_private *portdata = usb_get_serial_port_data(port);
 611         struct usb_serial *serial = port->serial;
 612
 613         dbg("%s", __func__);
 614         dbg("%s: urb %p port %p has data %p", __func__,urb,port,portdata);
 615
 616         if (status == 0) {
 617                 struct usb_ctrlrequest *req_pkt =
 618                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
 619
 620                 if (!req_pkt) {
 621                         dbg("%s: NULL req_pkt\n", __func__);
 622                         return;
 623                 }
 624                 if ((req_pkt->bRequestType == 0xA1) &&
 625                                 (req_pkt->bRequest == 0x20)) {
 626                         int old_dcd_state;
 627                         unsigned char signals = *((unsigned char *)
 628                                         urb->transfer_buffer +
 629                                         sizeof(struct usb_ctrlrequest));
 630
 631                         dbg("%s: signal x%x", __func__, signals);
 632
 633                         old_dcd_state = portdata->dcd_state;
 634                         portdata->cts_state = 1;
 635                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
 636                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
 637                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 638
 639                         if (port->tty && !C_CLOCAL(port->tty) &&
 640                                         old_dcd_state && !portdata->dcd_state)
 641                                 tty_hangup(port->tty);
 642                 } else {
 643                         dbg("%s: type %x req %x", __func__,
 644                                 req_pkt->bRequestType,req_pkt->bRequest);
 645                 }
 646         } else
 647                 dbg("%s: error %d", __func__, status);
 648
 649         /* Resubmit urb so we continue receiving IRQ data */
 650         if (status != -ESHUTDOWN) {
 651                 urb->dev = serial->dev;
 652                 err = usb_submit_urb(urb, GFP_ATOMIC);
 653                 if (err)
 654                         dbg("%s: resubmit intr urb failed. (%d)",
 655                                 __func__, err);
 656         }
 657 }
 658
 659 static int option_write_room(struct usb_serial_port *port)
 660 {
 661         struct option_port_private *portdata;
 662         int i;
 663         int data_len = 0;
 664         struct urb *this_urb;
 665
 666         portdata = usb_get_serial_port_data(port);
 667
 668
 669         for (i=0; i < N_OUT_URB; i++) {
 670                 this_urb = portdata->out_urbs[i];
 671                 if (this_urb && !test_bit(i, &portdata->out_busy))
 672                         data_len += OUT_BUFLEN;
 673         }
 674
 675         dbg("%s: %d", __func__, data_len);
 676         return data_len;
 677 }
 678
 679 static int option_chars_in_buffer(struct usb_serial_port *port)
 680 {
 681         struct option_port_private *portdata;
 682         int i;
 683         int data_len = 0;
 684         struct urb *this_urb;
 685
 686         portdata = usb_get_serial_port_data(port);
 687
 688         for (i=0; i < N_OUT_URB; i++) {
 689                 this_urb = portdata->out_urbs[i];
 690                 /* FIXME: This locking is insufficient as this_urb may
 691                    go unused during the test */
 692                 if (this_urb && test_bit(i, &portdata->out_busy))
 693                         data_len += this_urb->transfer_buffer_length;
 694         }
 695         dbg("%s: %d", __func__, data_len);
 696         return data_len;
 697 }
 698
 699 static int option_open(struct usb_serial_port *port, struct file *filp)
 700 {
 701         struct option_port_private *portdata;
 702         struct usb_serial *serial = port->serial;
 703         int i, err;
 704         struct urb *urb;
 705
 706         portdata = usb_get_serial_port_data(port);
 707
 708         dbg("%s", __func__);
 709
 710         /* Set some sane defaults */
 711         portdata->rts_state = 1;
 712         portdata->dtr_state = 1;
 713
 714         /* Reset low level data toggle and start reading from endpoints */
 715         for (i = 0; i < N_IN_URB; i++) {
 716                 urb = portdata->in_urbs[i];
 717                 if (! urb)
 718                         continue;
 719                 if (urb->dev != serial->dev) {
 720                         dbg("%s: dev %p != %p", __func__,
 721                                 urb->dev, serial->dev);
 722                         continue;
 723                 }
 724
 725                 /*
 726                  * make sure endpoint data toggle is synchronized with the
 727                  * device
 728                  */
 729                 usb_clear_halt(urb->dev, urb->pipe);
 730
 731                 err = usb_submit_urb(urb, GFP_KERNEL);
 732                 if (err) {
 733                         dbg("%s: submit urb %d failed (%d) %d",
 734                                 __func__, i, err,
 735                                 urb->transfer_buffer_length);
 736                 }
 737         }
 738
 739         /* Reset low level data toggle on out endpoints */
 740         for (i = 0; i < N_OUT_URB; i++) {
 741                 urb = portdata->out_urbs[i];
 742                 if (! urb)
 743                         continue;
 744                 urb->dev = serial->dev;
 745                 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 746                                 usb_pipeout(urb->pipe), 0); */
 747         }
 748
 749         port->tty->low_latency = 1;
 750
 751         option_send_setup(port);
 752
 753         return (0);
 754 }
 755
 756 static void option_close(struct usb_serial_port *port, struct file *filp)
 757 {
 758         int i;
 759         struct usb_serial *serial = port->serial;
 760         struct option_port_private *portdata;
 761
 762         dbg("%s", __func__);
 763         portdata = usb_get_serial_port_data(port);
 764
 765         portdata->rts_state = 0;
 766         portdata->dtr_state = 0;
 767
 768         if (serial->dev) {
 769                 mutex_lock(&serial->disc_mutex);
 770                 if (!serial->disconnected)
 771                         option_send_setup(port);
 772                 mutex_unlock(&serial->disc_mutex);
 773
 774                 /* Stop reading/writing urbs */
 775                 for (i = 0; i < N_IN_URB; i++)
 776                         usb_kill_urb(portdata->in_urbs[i]);
 777                 for (i = 0; i < N_OUT_URB; i++)
 778                         usb_kill_urb(portdata->out_urbs[i]);
 779         }
 780         port->tty = NULL;
 781 }
 782
 783 /* Helper functions used by option_setup_urbs */
 784 static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
 785                 int dir, void *ctx, char *buf, int len,
 786                 void (*callback)(struct urb *))
 787 {
 788         struct urb *urb;
 789
 790         if (endpoint == -1)
 791                 return NULL;            /* endpoint not needed */
 792
 793         urb = usb_alloc_urb(0, GFP_KERNEL);             /* No ISO */
 794         if (urb == NULL) {
 795                 dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
 796                 return NULL;
 797         }
 798
 799                 /* Fill URB using supplied data. */
 800         usb_fill_bulk_urb(urb, serial->dev,
 801                       usb_sndbulkpipe(serial->dev, endpoint) | dir,
 802                       buf, len, callback, ctx);
 803
 804         return urb;
 805 }
 806
 807 /* Setup urbs */
 808 static void option_setup_urbs(struct usb_serial *serial)
 809 {
 810         int i,j;
 811         struct usb_serial_port *port;
 812         struct option_port_private *portdata;
 813
 814         dbg("%s", __func__);
 815
 816         for (i = 0; i < serial->num_ports; i++) {
 817                 port = serial->port[i];
 818                 portdata = usb_get_serial_port_data(port);
 819
 820         /* Do indat endpoints first */
 821                 for (j = 0; j < N_IN_URB; ++j) {
 822                         portdata->in_urbs[j] = option_setup_urb (serial,
 823                         port->bulk_in_endpointAddress, USB_DIR_IN, port,
 824                         portdata->in_buffer[j], IN_BUFLEN, option_indat_callback);
 825                 }
 826
 827                 /* outdat endpoints */
 828                 for (j = 0; j < N_OUT_URB; ++j) {
 829                         portdata->out_urbs[j] = option_setup_urb (serial,
 830                         port->bulk_out_endpointAddress, USB_DIR_OUT, port,
 831                         portdata->out_buffer[j], OUT_BUFLEN, option_outdat_callback);
 832                 }
 833         }
 834 }
 835
 836
 837 /** send RTS/DTR state to the port.
 838  *
 839  * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
 840  * CDC.
 841 */
 842 static int option_send_setup(struct usb_serial_port *port)
 843 {
 844         struct usb_serial *serial = port->serial;
 845         struct option_port_private *portdata;
 846         int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
 847         dbg("%s", __func__);
 848
 849         portdata = usb_get_serial_port_data(port);
 850
 851         if (port->tty) {
 852                 int val = 0;
 853                 if (portdata->dtr_state)
 854                         val |= 0x01;
 855                 if (portdata->rts_state)
 856                         val |= 0x02;
 857
 858                 return usb_control_msg(serial->dev,
 859                                 usb_rcvctrlpipe(serial->dev, 0),
 860                                 0x22,0x21,val,ifNum,NULL,0,USB_CTRL_SET_TIMEOUT);
 861         }
 862
 863         return 0;
 864 }
 865
 866 static int option_startup(struct usb_serial *serial)
 867 {
 868         int i, j, err;
 869         struct usb_serial_port *port;
 870         struct option_port_private *portdata;
 871         u8 *buffer;
 872
 873         dbg("%s", __func__);
 874
 875         /* Now setup per port private data */
 876         for (i = 0; i < serial->num_ports; i++) {
 877                 port = serial->port[i];
 878                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
 879                 if (!portdata) {
 880                         dbg("%s: kmalloc for option_port_private (%d) failed!.",
 881                                         __func__, i);
 882                         return (1);
 883                 }
 884
 885                 for (j = 0; j < N_IN_URB; j++) {
 886                         buffer = (u8 *)__get_free_page(GFP_KERNEL);
 887                         if (!buffer)
 888                                 goto bail_out_error;
 889                         portdata->in_buffer[j] = buffer;
 890                 }
 891
 892                 for (j = 0; j < N_OUT_URB; j++) {
 893                         buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
 894                         if (!buffer)
 895                                 goto bail_out_error2;
 896                         portdata->out_buffer[j] = buffer;
 897                 }
 898
 899                 usb_set_serial_port_data(port, portdata);
 900
 901                 if (! port->interrupt_in_urb)
 902                         continue;
 903                 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 904                 if (err)
 905                         dbg("%s: submit irq_in urb failed %d",
 906                                 __func__, err);
 907         }
 908
 909         option_setup_urbs(serial);
 910
 911         return (0);
 912
 913 bail_out_error2:
 914         for (j = 0; j < N_OUT_URB; j++)
 915                 kfree(portdata->out_buffer[j]);
 916 bail_out_error:
 917         for (j = 0; j < N_IN_URB; j++)
 918                 if (portdata->in_buffer[j])
 919                         free_page((unsigned long)portdata->in_buffer[j]);
 920         kfree(portdata);
 921         return 1;
 922 }
 923
 924 static void option_shutdown(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         /* Stop reading/writing urbs */
 933         for (i = 0; i < serial->num_ports; ++i) {
 934                 port = serial->port[i];
 935                 portdata = usb_get_serial_port_data(port);
 936                 for (j = 0; j < N_IN_URB; j++)
 937                         usb_kill_urb(portdata->in_urbs[j]);
 938                 for (j = 0; j < N_OUT_URB; j++)
 939                         usb_kill_urb(portdata->out_urbs[j]);
 940         }
 941
 942         /* Now free them */
 943         for (i = 0; i < serial->num_ports; ++i) {
 944                 port = serial->port[i];
 945                 portdata = usb_get_serial_port_data(port);
 946
 947                 for (j = 0; j < N_IN_URB; j++) {
 948                         if (portdata->in_urbs[j]) {
 949                                 usb_free_urb(portdata->in_urbs[j]);
 950                                 free_page((unsigned long)portdata->in_buffer[j]);
 951                                 portdata->in_urbs[j] = NULL;
 952                         }
 953                 }
 954                 for (j = 0; j < N_OUT_URB; j++) {
 955                         if (portdata->out_urbs[j]) {
 956                                 usb_free_urb(portdata->out_urbs[j]);
 957                                 kfree(portdata->out_buffer[j]);
 958                                 portdata->out_urbs[j] = NULL;
 959                         }
 960                 }
 961         }
 962
 963         /* Now free per port private data */
 964         for (i = 0; i < serial->num_ports; i++) {
 965                 port = serial->port[i];
 966                 kfree(usb_get_serial_port_data(port));
 967         }
 968 }
 969
 970 MODULE_AUTHOR(DRIVER_AUTHOR);
 971 MODULE_DESCRIPTION(DRIVER_DESC);
 972 MODULE_VERSION(DRIVER_VERSION);
 973 MODULE_LICENSE("GPL");
 974
 975 #ifdef CONFIG_USB_DEBUG
 976 module_param(debug, bool, S_IRUGO | S_IWUSR);
 977 MODULE_PARM_DESC(debug, "Debug messages");
 978 #endif
 979