From: bernie <bernie@38d2e660-2303-0410-9eaa-f027e97ec537>
Date: Tue, 14 Jun 2005 06:16:03 +0000 (+0000)
Subject: Add all missing functions.
X-Git-Tag: 1.0.0~829
X-Git-Url: https://codewiz.org/gitweb?a=commitdiff_plain;h=13ec95fc46065b689287f537b61f2e6607be1653;p=bertos.git

Add all missing functions.


git-svn-id: https://src.develer.com/svnoss/bertos/trunk@412 38d2e660-2303-0410-9eaa-f027e97ec537
---

diff --git a/mware/byteorder.h b/mware/byteorder.h
index 10c8b6f4..65392535 100755
--- a/mware/byteorder.h
+++ b/mware/byteorder.h
@@ -15,6 +15,9 @@
 
 /*#*
  *#* $Log$
+ *#* Revision 1.8  2005/06/14 06:16:03  bernie
+ *#* Add all missing functions.
+ *#*
  *#* Revision 1.7  2005/04/12 04:08:49  bernie
  *#* host_to_net(16|32)(), net_to_host(16|32)(): New functions.
  *#*
@@ -45,7 +48,7 @@
 #include <cfg/cpu.h>
 
 /*!
- * \brief Swap upper and lower bytes in a 16-bit value.
+ * Swap upper and lower bytes in a 16-bit value.
  */
 INLINE uint16_t swab16(uint16_t x)
 {
@@ -54,7 +57,7 @@ INLINE uint16_t swab16(uint16_t x)
 }
 
 /*!
- * \brief Reverse bytes in a 32-bit value (e.g.: 0x12345678 -> 0x78563412).
+ * Reverse bytes in a 32-bit value (e.g.: 0x12345678 -> 0x78563412).
  */
 INLINE uint32_t swab32(uint32_t x)
 {
@@ -64,6 +67,21 @@ INLINE uint32_t swab32(uint32_t x)
 		| ((x & (uint32_t)0xFF000000UL) >> 24);
 }
 
+/*!
+ * Reverse bytes in a float value.
+ */
+INLINE float swab_float(float x)
+{
+	/* Avoid breaking strict aliasing rules.  */
+	char *cx = (char *)(&x);
+	STATIC_ASSERT(sizeof(float) == 4);
+	#define BYTEORDER_SWAP(a, b) ((a) ^= (b) ^= (a) ^= (b))
+	BYTEORDER_SWAP(cx[0], cx[3]);
+	BYTEORDER_SWAP(cx[1], cx[2]);
+	#undef BYTEORDER_SWAP
+	return x;
+}
+
 INLINE uint16_t cpu_to_be16(uint16_t x)
 {
 	return (CPU_BYTE_ORDER == CPU_LITTLE_ENDIAN) ? swab16(x) : x;
@@ -84,24 +102,130 @@ INLINE uint32_t cpu_to_le32(uint32_t x)
 	return (CPU_BYTE_ORDER == CPU_BIG_ENDIAN) ? swab32(x) : x;
 }
 
+INLINE float cpu_to_be_float(float x)
+{
+	return (CPU_BYTE_ORDER == CPU_LITTLE_ENDIAN) ? swab_float(x) : x;
+}
+
+INLINE float cpu_to_le_float(float x)
+{
+	return (CPU_BYTE_ORDER == CPU_BIG_ENDIAN) ? swab_float(x) : x;
+}
+
+INLINE uint16_t be16_to_cpu(uint16_t x)
+{
+	return cpu_to_be16(x);
+}
+
+INLINE uint16_t le16_to_cpu(uint16_t x)
+{
+	return cpu_to_le16(x);
+}
+
+INLINE uint32_t be32_to_cpu(uint32_t x)
+{
+	return cpu_to_be32(x);
+}
+
+INLINE uint32_t le32_to_cpu(uint32_t x)
+{
+	return cpu_to_le32(x);
+}
+
+INLINE float be_float_to_cpu(float x)
+{
+	return cpu_to_be_float(x);
+}
+
+INLINE float le_float_to_cpu(float x)
+{
+	return cpu_to_le_float(x);
+}
+
 INLINE uint16_t host_to_net16(uint16_t x)
 {
-	return (CPU_BYTE_ORDER == CPU_BIG_ENDIAN) ? x : swab16(x);
+	return cpu_to_be16(x);
 }
 
 INLINE uint16_t net_to_host16(uint16_t x)
 {
-	return (CPU_BYTE_ORDER == CPU_BIG_ENDIAN) ? x : swab16(x);
+	return be16_to_cpu(x);
 }
 
 INLINE uint32_t host_to_net32(uint32_t x)
 {
-	return (CPU_BYTE_ORDER == CPU_BIG_ENDIAN) ? x : swab32(x);
+	return cpu_to_be32(x);
 }
 
 INLINE uint32_t net_to_host32(uint32_t x)
 {
-	return (CPU_BYTE_ORDER == CPU_BIG_ENDIAN) ? x : swab32(x);
+	return be32_to_cpu(x);
+}
+
+INLINE float host_to_net_float(float x)
+{
+	return cpu_to_be_float(x);
 }
 
+INLINE float net_to_host_float(float x)
+{
+	return be_float_to_cpu(x);
+}
+
+#ifdef __cplusplus
+
+//! Type generic byte swapping.
+template<typename T>
+INLINE T swab(T x);
+
+template<> INLINE uint16_t swab(uint16_t x) { return swab16(x); }
+template<> INLINE uint32_t swab(uint32_t x) { return swab32(x); }
+template<> INLINE int16_t  swab(int16_t x)  { return static_cast<int16_t>(swab16(static_cast<uint16_t>(x))); }
+template<> INLINE int32_t  swab(int32_t x)  { return static_cast<int32_t>(swab32(static_cast<uint32_t>(x))); }
+template<> INLINE float    swab(float x)    { return swab_float(x); }
+
+//! Type generic conversion from CPU byte order to big-endian byte order.
+template<typename T>
+INLINE T cpu_to_be(T x)
+{
+	return (CPU_BYTE_ORDER == CPU_LITTLE_ENDIAN) ? swab(x) : x;
+}
+
+//! Type generic conversion from CPU byte-order to little-endian.
+template<typename T>
+INLINE T cpu_to_le(T x)
+{
+	return (CPU_BYTE_ORDER == CPU_BIG_ENDIAN) ? swab(x) : x;
+}
+
+//! Type generic conversion from big endian byte-order to CPU byte order.
+template<typename T>
+INLINE T be_to_cpu(T x)
+{
+	return cpu_to_be(x);
+}
+
+//! Type generic conversion from little-endian byte order to CPU byte order.
+template<typename T>
+INLINE T le_to_cpu(T x)
+{
+	return cpu_to_le(x);
+}
+
+//! Type generic conversion from network byte order to host byte order.
+template<typename T>
+INLINE T net_to_host(T x)
+{
+	return be_to_cpu(x);
+}
+
+//! Type generic conversion from host byte order to network byte order.
+template<typename T>
+INLINE T host_to_net(T x)
+{
+	return net_to_host(x);
+}
+
+#endif /* __cplusplus */
+
 #endif /* MWARE_BYTEORDER_H */