usb.c

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/*
 * 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.
 */

#include <usb/usb.h>
#include <errno.h>

#define ARR_SIZE(arr) (sizeof(arr)/sizeof(arr[0]))

static const char *str_speed[] = {
        "low",
        "full",
        "high"
};

static const char *str_transfer_type[] = {
        "control",
        "isochronous",
        "bulk",
        "interrupt"
};

static const char *str_transfer_type_short[] = {
        "ctrl",
        "iso",
        "bulk",
        "intr"
};

const char *usb_str_transfer_type(usb_transfer_type_t t)
{
        if (t >= ARR_SIZE(str_transfer_type)) {
                return "invalid";
        }
        return str_transfer_type[t];
}

const char *usb_str_transfer_type_short(usb_transfer_type_t t)
{
        if (t >= ARR_SIZE(str_transfer_type_short)) {
                return "invl";
        }
        return str_transfer_type_short[t];
}

const char *usb_str_speed(usb_speed_t s)
{
        if (s >= ARR_SIZE(str_speed)) {
                return "invalid";
        }
        return str_speed[s];
}

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