completion_codes.h

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/*
 * Copyright (c) 2011 Jan Vesely
 * 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.
 */
#ifndef DRV_OHCI_HW_STRUCT_COMPLETION_CODES_H
#define DRV_OHCI_HW_STRUCT_COMPLETION_CODES_H

#include <errno.h>

#define CC_NOERROR (0x0)
#define CC_CRC (0x1)
#define CC_BITSTUFF (0x2)
#define CC_TOGGLE (0x3)
#define CC_STALL (0x4)
#define CC_NORESPONSE (0x5)
#define CC_PIDFAIL (0x6)
#define CC_PIDUNEXPECTED (0x7)
#define CC_DATAOVERRRUN (0x8)
#define CC_DATAUNDERRRUN (0x9)
#define CC_BUFFEROVERRRUN (0xc)
#define CC_BUFFERUNDERRUN (0xd)
#define CC_NOACCESS1 (0xe)
#define CC_NOACCESS2 (0xf)

inline static int cc_to_rc(int cc)
{
        switch (cc) {
        case CC_NOERROR:
                return EOK;

        case CC_CRC:
                return EBADCHECKSUM;

        case CC_PIDUNEXPECTED:
        case CC_PIDFAIL:
        case CC_BITSTUFF:
                return EIO;

        case CC_TOGGLE:
        case CC_STALL:
                return ESTALL;

        case CC_NORESPONSE:
                return ETIMEOUT;

        case CC_DATAOVERRRUN:
        case CC_DATAUNDERRRUN:
        case CC_BUFFEROVERRRUN:
        case CC_BUFFERUNDERRUN:
                return EOVERFLOW;

        case CC_NOACCESS1:
        case CC_NOACCESS2:
        default:
                return ENOTSUP;
        }
}

#endif

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