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Michal Nazarewicze538dfd2011-08-30 17:11:19 +02001/*
2 * Provides code common for host and device side USB.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation, version 2.
7 *
8 * If either host side (ie. CONFIG_USB=y) or device side USB stack
9 * (ie. CONFIG_USB_GADGET=y) is compiled in the kernel, this module is
10 * compiled-in as well. Otherwise, if either of the two stacks is
11 * compiled as module, this file is compiled as module as well.
12 */
13
14#include <linux/kernel.h>
15#include <linux/module.h>
16#include <linux/usb/ch9.h>
Felipe Balbi7009bdd72013-03-07 10:45:56 +020017#include <linux/usb/otg.h>
18
19const char *usb_otg_state_string(enum usb_otg_state state)
20{
21 static const char *const names[] = {
22 [OTG_STATE_A_IDLE] = "a_idle",
23 [OTG_STATE_A_WAIT_VRISE] = "a_wait_vrise",
24 [OTG_STATE_A_WAIT_BCON] = "a_wait_bcon",
25 [OTG_STATE_A_HOST] = "a_host",
26 [OTG_STATE_A_SUSPEND] = "a_suspend",
27 [OTG_STATE_A_PERIPHERAL] = "a_peripheral",
28 [OTG_STATE_A_WAIT_VFALL] = "a_wait_vfall",
29 [OTG_STATE_A_VBUS_ERR] = "a_vbus_err",
30 [OTG_STATE_B_IDLE] = "b_idle",
31 [OTG_STATE_B_SRP_INIT] = "b_srp_init",
32 [OTG_STATE_B_PERIPHERAL] = "b_peripheral",
33 [OTG_STATE_B_WAIT_ACON] = "b_wait_acon",
34 [OTG_STATE_B_HOST] = "b_host",
35 };
36
37 if (state < 0 || state >= ARRAY_SIZE(names))
38 return "UNDEFINED";
39
40 return names[state];
41}
42EXPORT_SYMBOL_GPL(usb_otg_state_string);
Michal Nazarewicze538dfd2011-08-30 17:11:19 +020043
44const char *usb_speed_string(enum usb_device_speed speed)
45{
46 static const char *const names[] = {
47 [USB_SPEED_UNKNOWN] = "UNKNOWN",
48 [USB_SPEED_LOW] = "low-speed",
49 [USB_SPEED_FULL] = "full-speed",
50 [USB_SPEED_HIGH] = "high-speed",
51 [USB_SPEED_WIRELESS] = "wireless",
52 [USB_SPEED_SUPER] = "super-speed",
53 };
54
55 if (speed < 0 || speed >= ARRAY_SIZE(names))
56 speed = USB_SPEED_UNKNOWN;
57 return names[speed];
58}
59EXPORT_SYMBOL_GPL(usb_speed_string);
60
Felipe Balbid1e3d752013-01-24 22:29:48 +020061const char *usb_state_string(enum usb_device_state state)
62{
63 static const char *const names[] = {
64 [USB_STATE_NOTATTACHED] = "not attached",
65 [USB_STATE_ATTACHED] = "attached",
66 [USB_STATE_POWERED] = "powered",
67 [USB_STATE_RECONNECTING] = "reconnecting",
68 [USB_STATE_UNAUTHENTICATED] = "unauthenticated",
69 [USB_STATE_DEFAULT] = "default",
70 [USB_STATE_ADDRESS] = "addresssed",
71 [USB_STATE_CONFIGURED] = "configured",
72 [USB_STATE_SUSPENDED] = "suspended",
73 };
74
75 if (state < 0 || state >= ARRAY_SIZE(names))
76 return "UNKNOWN";
77
78 return names[state];
79}
80EXPORT_SYMBOL_GPL(usb_state_string);
81
Michal Nazarewicze538dfd2011-08-30 17:11:19 +020082MODULE_LICENSE("GPL");