patch-2.1.43 linux/include/asm-sparc/byteorder.h

• Lines: 71
• Date: Thu Jun 12 16:22:10 1997
• Orig file: v2.1.42/linux/include/asm-sparc/byteorder.h
• Orig date: Thu May 29 21:53:09 1997

diff -u --recursive --new-file v2.1.42/linux/include/asm-sparc/byteorder.h linux/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 @@
 #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);
+}
+
+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);
 }
-#define be16_to_cpu(x)  (x)
-#define be32_to_cpu(x)  (x)
+
+/* 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__ */