drivers/usb/serial/qcaux.c

   1 /*
   2  * Qualcomm USB Auxiliary Serial Port driver
   3  *
   4  * Copyright (C) 2008 Greg Kroah-Hartman <greg@kroah.com>
   5  * Copyright (C) 2010 Dan Williams <dcbw@redhat.com>
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  * Devices listed here usually provide a CDC ACM port on which normal modem
  12  * AT commands and PPP can be used.  But when that port is in-use by PPP it
  13  * cannot be used simultaneously for status or signal strength.  Instead, the
  14  * ports here can be queried for that information using the Qualcomm DM
  15  * protocol.
  16  */
  17
  18 #include <linux/kernel.h>
  19 #include <linux/init.h>
  20 #include <linux/tty.h>
  21 #include <linux/module.h>
  22 #include <linux/usb.h>
  23 #include <linux/usb/serial.h>
  24
  25 /* NOTE: for now, only use this driver for devices that provide a CDC-ACM port
  26  * for normal AT commands, but also provide secondary USB interfaces for the
  27  * QCDM-capable ports.  Devices that do not provide a CDC-ACM port should
  28  * probably be driven by option.ko.
  29  */
  30
  31 /* UTStarcom/Pantech/Curitel devices */
  32 #define UTSTARCOM_VENDOR_ID                     0x106c
  33 #define UTSTARCOM_PRODUCT_PC5740                0x3701
  34 #define UTSTARCOM_PRODUCT_PC5750                0x3702 /* aka Pantech PX-500 */
  35 #define UTSTARCOM_PRODUCT_UM150                 0x3711
  36 #define UTSTARCOM_PRODUCT_UM175_V1              0x3712
  37 #define UTSTARCOM_PRODUCT_UM175_V2              0x3714
  38 #define UTSTARCOM_PRODUCT_UM175_ALLTEL          0x3715
  39
  40 /* CMOTECH devices */
  41 #define CMOTECH_VENDOR_ID                       0x16d8
  42 #define CMOTECH_PRODUCT_CDU550                  0x5553
  43 #define CMOTECH_PRODUCT_CDX650                  0x6512
  44
  45 /* LG devices */
  46 #define LG_VENDOR_ID                            0x1004
  47 #define LG_PRODUCT_VX4400_6000                  0x6000 /* VX4400/VX6000/Rumor */
  48
  49 /* Sanyo devices */
  50 #define SANYO_VENDOR_ID                         0x0474
  51 #define SANYO_PRODUCT_KATANA_LX                 0x0754 /* SCP-3800 (Katana LX) */
  52
  53 /* Samsung devices */
  54 #define SAMSUNG_VENDOR_ID                       0x04e8
  55 #define SAMSUNG_PRODUCT_U520                    0x6640 /* SCH-U520 */
  56
  57 static struct usb_device_id id_table[] = {
  58         { USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_PC5740, 0xff, 0x00, 0x00) },
  59         { USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_PC5750, 0xff, 0x00, 0x00) },
  60         { USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_UM150, 0xff, 0x00, 0x00) },
  61         { USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_UM175_V1, 0xff, 0x00, 0x00) },
  62         { USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_UM175_V2, 0xff, 0x00, 0x00) },
  63         { USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_UM175_ALLTEL, 0xff, 0x00, 0x00) },
  64         { USB_DEVICE_AND_INTERFACE_INFO(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CDU550, 0xff, 0xff, 0x00) },
  65         { USB_DEVICE_AND_INTERFACE_INFO(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CDX650, 0xff, 0xff, 0x00) },
  66         { USB_DEVICE_AND_INTERFACE_INFO(LG_VENDOR_ID, LG_PRODUCT_VX4400_6000, 0xff, 0xff, 0x00) },
  67         { USB_DEVICE_AND_INTERFACE_INFO(SANYO_VENDOR_ID, SANYO_PRODUCT_KATANA_LX, 0xff, 0xff, 0x00) },
  68         { USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, SAMSUNG_PRODUCT_U520, 0xff, 0x00, 0x00) },
  69         { },
  70 };
  71 MODULE_DEVICE_TABLE(usb, id_table);
  72
  73 static struct usb_driver qcaux_driver = {
  74         .name =         "qcaux",
  75         .probe =        usb_serial_probe,
  76         .disconnect =   usb_serial_disconnect,
  77         .id_table =     id_table,
  78         .no_dynamic_id =        1,
  79 };
  80
  81 static struct usb_serial_driver qcaux_device = {
  82         .driver = {
  83                 .owner =        THIS_MODULE,
  84                 .name =         "qcaux",
  85         },
  86         .id_table =             id_table,
  87         .num_ports =            1,
  88 };
  89
  90 static int __init qcaux_init(void)
  91 {
  92         int retval;
  93
  94         retval = usb_serial_register(&qcaux_device);
  95         if (retval)
  96                 return retval;
  97         retval = usb_register(&qcaux_driver);
  98         if (retval)
  99                 usb_serial_deregister(&qcaux_device);
 100         return retval;
 101 }
 102
 103 static void __exit qcaux_exit(void)
 104 {
 105         usb_deregister(&qcaux_driver);
 106         usb_serial_deregister(&qcaux_device);
 107 }
 108
 109 module_init(qcaux_init);
 110 module_exit(qcaux_exit);
 111 MODULE_LICENSE("GPL");