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[PATCH] include/linux/soundcard.h: endianness fix 

Fixes for big-endian systems in soundcard.h and awe_voice.h

This patch fixes the AFMT_S16_NE (include/linux/soundcard.h) and AWE_PATCH
(awe_voice.h) macros on big-endian systems.

It also moves _PATCHKEY into a new file, patchkey.h, in order to remove a
duplicate definition of it from awe_voice.h.

Signed-off-by: Stuart Brady <sdbrady@ntlworld.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Stuart Brady 2005-05-05 16:15:07 -07:00 committed by Linus Torvalds
parent 42d77c7017
commit 60d300c02f
3 changed files with 75 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
include/linux/awe_voice.h
View File

@ -29,9 +29,9 @@
#define SAMPLE_TYPE_AWE32 0x20
#endif
#ifndef _PATCHKEY
#define _PATCHKEY(id) ((id<<8)|0xfd)
#endif
#define _LINUX_PATCHKEY_H_INDIRECT
#include <linux/patchkey.h>
#undef _LINUX_PATCHKEY_H_INDIRECT
/*----------------------------------------------------------------
* patch information record

45
include/linux/patchkey.h Normal file
View File

@ -0,0 +1,45 @@
/*
* <linux/patchkey.h> -- definition of _PATCHKEY macro
*
* Copyright (C) 2005 Stuart Brady
*
* This exists because awe_voice.h defined its own _PATCHKEY and it wasn't
* clear whether removing this would break anything in userspace.
*
* Do not include this file directly. Please use <sys/soundcard.h> instead.
* For kernel code, use <linux/soundcard.h>
*/
#ifndef _LINUX_PATCHKEY_H_INDIRECT
#error "patchkey.h included directly"
#endif
#ifndef _LINUX_PATCHKEY_H
#define _LINUX_PATCHKEY_H
/* Endian macros. */
#ifdef __KERNEL__
# include <asm/byteorder.h>
#else
# include <endian.h>
#endif
#if defined(__KERNEL__)
# if defined(__BIG_ENDIAN)
# define _PATCHKEY(id) (0xfd00|id)
# elif defined(__LITTLE_ENDIAN)
# define _PATCHKEY(id) ((id<<8)|0x00fd)
# else
# error "could not determine byte order"
# endif
#elif defined(__BYTE_ORDER)
# if __BYTE_ORDER == __BIG_ENDIAN
# define _PATCHKEY(id) (0xfd00|id)
# elif __BYTE_ORDER == __LITTLE_ENDIAN
# define _PATCHKEY(id) ((id<<8)|0x00fd)
# else
# error "could not determine byte order"
# endif
#endif
#endif /* _LINUX_PATCHKEY_H */

34
include/linux/soundcard.h
View File

@ -39,6 +39,13 @@
/* In Linux we need to be prepared for cross compiling */
#include <linux/ioctl.h>
/* Endian macros. */
#ifdef __KERNEL__
# include <asm/byteorder.h>
#else
# include <endian.h>
#endif
/*
* Supported card ID numbers (Should be somewhere else?)
*/
@ -179,13 +186,26 @@ typedef struct seq_event_rec {
* Some big endian/little endian handling macros
*/
#if defined(_AIX) || defined(AIX) || defined(sparc) || defined(__sparc__) || defined(HPPA) || defined(PPC) || defined(__mc68000__)
/* Big endian machines */
# define _PATCHKEY(id) (0xfd00|id)
# define AFMT_S16_NE AFMT_S16_BE
#else
# define _PATCHKEY(id) ((id<<8)|0xfd)
# define AFMT_S16_NE AFMT_S16_LE
#define _LINUX_PATCHKEY_H_INDIRECT
#include <linux/patchkey.h>
#undef _LINUX_PATCHKEY_H_INDIRECT
#if defined(__KERNEL__)
# if defined(__BIG_ENDIAN)
# define AFMT_S16_NE AFMT_S16_BE
# elif defined(__LITTLE_ENDIAN)
# define AFMT_S16_NE AFMT_S16_LE
# else
# error "could not determine byte order"
# endif
#elif defined(__BYTE_ORDER)
# if __BYTE_ORDER == __BIG_ENDIAN
# define AFMT_S16_NE AFMT_S16_BE
# elif __BYTE_ORDER == __LITTLE_ENDIAN
# define AFMT_S16_NE AFMT_S16_LE
# else
# error "could not determine byte order"
# endif
#endif
/*