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Diffstat (limited to 'payloads/libpayload/include/arch/endian.h')
-rw-r--r-- | payloads/libpayload/include/arch/endian.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/payloads/libpayload/include/arch/endian.h b/payloads/libpayload/include/arch/endian.h new file mode 100644 index 0000000000..995681494a --- /dev/null +++ b/payloads/libpayload/include/arch/endian.h @@ -0,0 +1,46 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * 3. 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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 _ARCH_ENDIAN_H +#define _ARCH_ENDIAN_H + +static u32 ntohl(u32 in) +{ + return ((in & 0xFF) << 24) | ((in & 0xFF00) << 8) | + ((in & 0xFF0000) >> 8) | ((in & 0xFF000000) >> 24); +} + +static u64 ntohll(u64 in) +{ + u32 h = in >> 32; + u32 l = in & 0xFFFFFFFF; + + return (((u64) ntohl(l) << 32) | ((u64) ntohl(h))); +} +#endif |