diff options
Diffstat (limited to 'include/asm-sparc/byteorder.h')
| -rw-r--r-- | include/asm-sparc/byteorder.h | 55 |
1 files changed, 46 insertions, 9 deletions
diff --git a/include/asm-sparc/byteorder.h b/include/asm-sparc/byteorder.h index 758324f39..5becb7c5d 100644 --- a/include/asm-sparc/byteorder.h +++ b/include/asm-sparc/byteorder.h @@ -1,4 +1,4 @@ -/* $Id: byteorder.h,v 1.13 1997/05/26 23:37:46 davem Exp $ */ +/* $Id: byteorder.h,v 1.14 1997/05/28 11:35:38 jj Exp $ */ #ifndef _SPARC_BYTEORDER_H #define _SPARC_BYTEORDER_H @@ -37,19 +37,56 @@ extern __inline__ __u32 cpu_to_le32(__u32 value) #define cpu_to_be16(x) (x) #define cpu_to_be32(x) (x) -/* Convert from specified byte order, to CPU byte order. */ -extern __inline__ __u16 le16_to_cpu(__u16 value) +/* The same, but returns converted value from the location pointer by addr. */ +extern __inline__ __u16 cpu_to_le16p(__u16 *addr) { - return (value >> 8) | (value << 8); + return cpu_to_le16(*addr); } -extern __inline__ __u32 le32_to_cpu(__u32 value) +extern __inline__ __u32 cpu_to_le32p(__u32 *addr) { - return((value>>24) | ((value>>8)&0xff00) | - ((value<<8)&0xff0000) | (value<<24)); + return cpu_to_le32(*addr); } -#define be16_to_cpu(x) (x) -#define be32_to_cpu(x) (x) + +extern __inline__ __u16 cpu_to_be16p(__u16 *addr) +{ + return cpu_to_be16(*addr); +} + +extern __inline__ __u32 cpu_to_be32p(__u32 *addr) +{ + return cpu_to_be32(*addr); +} + +/* The same, but do the conversion in situ, ie. put the value back to addr. */ +extern __inline__ void cpu_to_le16s(__u16 *addr) +{ + *addr = cpu_to_le16(*addr); +} + +extern __inline__ void cpu_to_le32s(__u32 *addr) +{ + *addr = cpu_to_le32(*addr); +} + +#define cpu_to_be16s(x) do { } while (0) +#define cpu_to_be32s(x) do { } while (0) + +/* Convert from specified byte order, to CPU byte order. */ +#define le16_to_cpu(x) cpu_to_le16(x) +#define le32_to_cpu(x) cpu_to_le32(x) +#define be16_to_cpu(x) cpu_to_be16(x) +#define be32_to_cpu(x) cpu_to_be32(x) + +#define le16_to_cpup(x) cpu_to_le16p(x) +#define le32_to_cpup(x) cpu_to_le32p(x) +#define be16_to_cpup(x) cpu_to_be16p(x) +#define be32_to_cpup(x) cpu_to_be32p(x) + +#define le16_to_cpus(x) cpu_to_le16s(x) +#define le32_to_cpus(x) cpu_to_le32s(x) +#define be16_to_cpus(x) cpu_to_be16s(x) +#define be32_to_cpus(x) cpu_to_be32s(x) #endif /* __KERNEL__ */ |