freebsd-dev/sys/dev/usb/usb_endian.h
Pedro F. Giffuni 718cf2ccb9 sys/dev: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 14:52:40 +00:00

124 lines
3.6 KiB
C

/* $FreeBSD$ */
/*
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
*
* 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.
*
* 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 _USB_ENDIAN_H_
#define _USB_ENDIAN_H_
#ifndef USB_GLOBAL_INCLUDE_FILE
#include <sys/stdint.h>
#include <sys/endian.h>
#endif
/*
* Declare the basic USB record types. USB records have an alignment
* of 1 byte and are always packed.
*/
typedef uint8_t uByte;
typedef uint8_t uWord[2];
typedef uint8_t uDWord[4];
typedef uint8_t uQWord[8];
/*
* Define a set of macros that can get and set data independent of
* CPU endianness and CPU alignment requirements:
*/
#define UGETB(w) \
((w)[0])
#define UGETW(w) \
((w)[0] | \
(((uint16_t)((w)[1])) << 8))
#define UGETDW(w) \
((w)[0] | \
(((uint16_t)((w)[1])) << 8) | \
(((uint32_t)((w)[2])) << 16) | \
(((uint32_t)((w)[3])) << 24))
#define UGETQW(w) \
((w)[0] | \
(((uint16_t)((w)[1])) << 8) | \
(((uint32_t)((w)[2])) << 16) | \
(((uint32_t)((w)[3])) << 24) | \
(((uint64_t)((w)[4])) << 32) | \
(((uint64_t)((w)[5])) << 40) | \
(((uint64_t)((w)[6])) << 48) | \
(((uint64_t)((w)[7])) << 56))
#define USETB(w,v) do { \
(w)[0] = (uint8_t)(v); \
} while (0)
#define USETW(w,v) do { \
(w)[0] = (uint8_t)(v); \
(w)[1] = (uint8_t)((v) >> 8); \
} while (0)
#define USETDW(w,v) do { \
(w)[0] = (uint8_t)(v); \
(w)[1] = (uint8_t)((v) >> 8); \
(w)[2] = (uint8_t)((v) >> 16); \
(w)[3] = (uint8_t)((v) >> 24); \
} while (0)
#define USETQW(w,v) do { \
(w)[0] = (uint8_t)(v); \
(w)[1] = (uint8_t)((v) >> 8); \
(w)[2] = (uint8_t)((v) >> 16); \
(w)[3] = (uint8_t)((v) >> 24); \
(w)[4] = (uint8_t)((v) >> 32); \
(w)[5] = (uint8_t)((v) >> 40); \
(w)[6] = (uint8_t)((v) >> 48); \
(w)[7] = (uint8_t)((v) >> 56); \
} while (0)
#define USETW2(w,b1,b0) do { \
(w)[0] = (uint8_t)(b0); \
(w)[1] = (uint8_t)(b1); \
} while (0)
#define USETW4(w,b3,b2,b1,b0) do { \
(w)[0] = (uint8_t)(b0); \
(w)[1] = (uint8_t)(b1); \
(w)[2] = (uint8_t)(b2); \
(w)[3] = (uint8_t)(b3); \
} while (0)
#define USETW8(w,b7,b6,b5,b4,b3,b2,b1,b0) do { \
(w)[0] = (uint8_t)(b0); \
(w)[1] = (uint8_t)(b1); \
(w)[2] = (uint8_t)(b2); \
(w)[3] = (uint8_t)(b3); \
(w)[4] = (uint8_t)(b4); \
(w)[5] = (uint8_t)(b5); \
(w)[6] = (uint8_t)(b6); \
(w)[7] = (uint8_t)(b7); \
} while (0)
#endif /* _USB_ENDIAN_H_ */