/*
* Copyright (c) 2010 Vojtech Horky
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup libusb
* @{
*/
/** @file
* Common USB functions.
*/
#include <usb/usb.h>
#include <usb/request.h>
#include <assert.h>
#include <byteorder.h>
#include <macros.h>
static const char *str_speed[] = {
[USB_SPEED_LOW] = "low",
[USB_SPEED_FULL] = "full",
[USB_SPEED_HIGH] = "high",
[USB_SPEED_SUPER] = "super",
};
static const char *str_transfer_type[] = {
[USB_TRANSFER_CONTROL] = "control",
[USB_TRANSFER_ISOCHRONOUS] = "isochronous",
[USB_TRANSFER_BULK] = "bulk",
[USB_TRANSFER_INTERRUPT] = "interrupt",
};
static const char *str_transfer_type_short[] = {
[USB_TRANSFER_CONTROL] = "ctrl",
[USB_TRANSFER_ISOCHRONOUS] = "iso",
[USB_TRANSFER_BULK] = "bulk",
[USB_TRANSFER_INTERRUPT] = "intr",
};
static const char *str_direction[] = {
[USB_DIRECTION_IN] = "in",
[USB_DIRECTION_OUT] = "out",
[USB_DIRECTION_BOTH] = "both",
};
/** String representation for USB transfer type.
*
* @param t Transfer type.
* @return Transfer type as a string (in English).
*/
const char *usb_str_transfer_type(usb_transfer_type_t t)
{
if ((size_t)t >= ARRAY_SIZE(str_transfer_type)) {
return "invalid";
}
return str_transfer_type[t];
}
/** String representation for USB transfer type (short version).
*
* @param t Transfer type.
* @return Transfer type as a short string for debugging messages.
*/
const char *usb_str_transfer_type_short(usb_transfer_type_t t)
{
if ((size_t)t >= ARRAY_SIZE(str_transfer_type_short)) {
return "invl";
}
return str_transfer_type_short[t];
}
/** String representation of USB direction.
*
* @param d The direction.
* @return Direction as a string (in English).
*/
const char *usb_str_direction(usb_direction_t d)
{
if (d >= ARRAY_SIZE(str_direction)) {
return "invalid";
}
return str_direction[d];
}
/** String representation of USB speed.
*
* @param s The speed.
* @return USB speed as a string (in English).
*/
const char *usb_str_speed(usb_speed_t s)
{
if (s >= ARRAY_SIZE(str_speed)) {
return "invalid";
}
return str_speed[s];
}
/**
* @}
*/