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Reorder a little.

This commit is contained in:
augustss 2000-06-01 15:43:32 +00:00
parent 9169d99f2a
commit fff66007d9
1 changed files with 10 additions and 5 deletions
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15
sys/dev/usb/usb.h
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@ -1,4 +1,4 @@
/* $NetBSD: usb.h,v 1.49 2000/05/30 10:10:17 augustss Exp $ */
/* $NetBSD: usb.h,v 1.50 2000/06/01 15:43:32 augustss Exp $ */
/* $FreeBSD: src/sys/dev/usb/usb.h,v 1.14 1999/11/17 22:33:46 n_hibma Exp $ */
/*
@ -76,27 +76,32 @@ MALLOC_DECLARE(M_USBHC);
/*
* The USB records contain some unaligned little-endian word
* components. The U[SG]ETW macros take care of both the alignment
* and endian problem and should always be used to access 16 bit
* and endian problem and should always be used to access non-byte
* values.
*/
typedef u_int8_t uByte;
typedef u_int8_t uWord[2];
typedef u_int8_t uDWord[4];
#define USETW2(w,h,l) ((w)[0] = (u_int8_t)(l), (w)[1] = (u_int8_t)(h))
#if 1
#define UGETW(w) ((w)[0] | ((w)[1] << 8))
#define USETW(w,v) ((w)[0] = (u_int8_t)(v), (w)[1] = (u_int8_t)((v) >> 8))
#define USETW2(w,h,l) ((w)[0] = (u_int8_t)(l), (w)[1] = (u_int8_t)(h))
typedef u_int8_t uDWord[4];
#define UGETDW(w) ((w)[0] | ((w)[1] << 8) | ((w)[2] << 16) | ((w)[3] << 24))
#define USETDW(w,v) ((w)[0] = (u_int8_t)(v), \
(w)[1] = (u_int8_t)((v) >> 8), \
(w)[2] = (u_int8_t)((v) >> 16), \
(w)[3] = (u_int8_t)((v) >> 24))
#else
/*
* On little-endian machines that can handle unanliged accesses
* (e.g. i386) these macros can be replaced by the following.
*/
#if 0
#define UGETW(w) (*(u_int16_t *)(w))
#define USETW(w,v) (*(u_int16_t *)(w) = (v))
#define UGETDW(w) (*(u_int32_t *)(w))
#define USETDW(w,v) (*(u_int32_t *)(w) = (v))
#endif
#define UPACKED __attribute__((__packed__))