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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 | /**
* \file <file/conv.h>
* \brief Application interface library for the ALSA driver
* \author Jaroslav Kysela <perex@suse.cz>
* \author Abramo Bagnara <abramo@alsa-project.org>
* \author Takashi Iwai <tiwai@suse.de>
* \date 1998-2001
*
* Application interface library for the ALSA driver
*/
/*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef __ALSA_CONV_H
#define __ALSA_CONV_H
/**
* \defgroup BConv Binary Value Conversion
* Helper macros to convert binary values to/from a specific byte order.
* \{
*/
/** Converts a 16-bit value from host to little endian byte order. */
#define snd_host_to_LE_16(val) __cpu_to_le16(val)
/** Converts a 16-bit value from little endian to host byte order. */
#define snd_LE_to_host_16(val) __le16_to_cpu(val)
/** Converts a 32-bit value from host to little endian byte order. */
#define snd_host_to_LE_32(val) __cpu_to_le32(val)
/** Converts a 32-bit value from little endian to host byte order. */
#define snd_LE_to_host_32(val) __le32_to_cpu(val)
/** Converts a 16-bit value from host to big endian byte order. */
#define snd_host_to_BE_16(val) __cpu_to_be16(val)
/** Converts a 16-bit value from big endian to host byte order. */
#define snd_BE_to_host_16(val) __be16_to_cpu(val)
/** Converts a 32-bit value from host to big endian byte order. */
#define snd_host_to_BE_32(val) __cpu_to_be32(val)
/** Converts a 32-bit value from big endian to host byte order. */
#define snd_BE_to_host_32(val) __be32_to_cpu(val)
/** \} */
#endif /* __ALSA_CONV_H */
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