xref: /linux/drivers/usb/serial/qcaux.c (revision 48fa4b8ecf683f5e411303553da9e186e8b8406e)
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 #define PANTECH_PRODUCT_UML290_VZW		0x3718
40 
41 /* CMOTECH devices */
42 #define CMOTECH_VENDOR_ID			0x16d8
43 #define CMOTECH_PRODUCT_CDU550			0x5553
44 #define CMOTECH_PRODUCT_CDX650			0x6512
45 
46 /* LG devices */
47 #define LG_VENDOR_ID				0x1004
48 #define LG_PRODUCT_VX4400_6000			0x6000 /* VX4400/VX6000/Rumor */
49 
50 /* Sanyo devices */
51 #define SANYO_VENDOR_ID				0x0474
52 #define SANYO_PRODUCT_KATANA_LX			0x0754 /* SCP-3800 (Katana LX) */
53 
54 /* Samsung devices */
55 #define SAMSUNG_VENDOR_ID			0x04e8
56 #define SAMSUNG_PRODUCT_U520			0x6640 /* SCH-U520 */
57 
58 static struct usb_device_id id_table[] = {
59 	{ USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_PC5740, 0xff, 0x00, 0x00) },
60 	{ USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_PC5750, 0xff, 0x00, 0x00) },
61 	{ USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_UM150, 0xff, 0x00, 0x00) },
62 	{ USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_UM175_V1, 0xff, 0x00, 0x00) },
63 	{ USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_UM175_V2, 0xff, 0x00, 0x00) },
64 	{ USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_UM175_ALLTEL, 0xff, 0x00, 0x00) },
65 	{ USB_DEVICE_AND_INTERFACE_INFO(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CDU550, 0xff, 0xff, 0x00) },
66 	{ USB_DEVICE_AND_INTERFACE_INFO(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CDX650, 0xff, 0xff, 0x00) },
67 	{ USB_DEVICE_AND_INTERFACE_INFO(LG_VENDOR_ID, LG_PRODUCT_VX4400_6000, 0xff, 0xff, 0x00) },
68 	{ USB_DEVICE_AND_INTERFACE_INFO(SANYO_VENDOR_ID, SANYO_PRODUCT_KATANA_LX, 0xff, 0xff, 0x00) },
69 	{ USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, SAMSUNG_PRODUCT_U520, 0xff, 0x00, 0x00) },
70 	{ USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, PANTECH_PRODUCT_UML290_VZW, 0xff, 0xff, 0xff) },
71 	{ },
72 };
73 MODULE_DEVICE_TABLE(usb, id_table);
74 
75 static struct usb_driver qcaux_driver = {
76 	.name =		"qcaux",
77 	.probe =	usb_serial_probe,
78 	.disconnect =	usb_serial_disconnect,
79 	.id_table =	id_table,
80 	.no_dynamic_id = 	1,
81 };
82 
83 static struct usb_serial_driver qcaux_device = {
84 	.driver = {
85 		.owner =	THIS_MODULE,
86 		.name =		"qcaux",
87 	},
88 	.id_table =		id_table,
89 	.usb_driver =		&qcaux_driver,
90 	.num_ports =		1,
91 };
92 
93 static int __init qcaux_init(void)
94 {
95 	int retval;
96 
97 	retval = usb_serial_register(&qcaux_device);
98 	if (retval)
99 		return retval;
100 	retval = usb_register(&qcaux_driver);
101 	if (retval)
102 		usb_serial_deregister(&qcaux_device);
103 	return retval;
104 }
105 
106 static void __exit qcaux_exit(void)
107 {
108 	usb_deregister(&qcaux_driver);
109 	usb_serial_deregister(&qcaux_device);
110 }
111 
112 module_init(qcaux_init);
113 module_exit(qcaux_exit);
114 MODULE_LICENSE("GPL");
115