(6/6) bcm57xx: package

[openwrt.git] / package / broadcom-57xx / src / bcmendian.h

diff --git a/package/broadcom-57xx/src/bcmendian.h b/package/broadcom-57xx/src/bcmendian.h
new file mode 100644 (file)
index 0000000..dc26d51
--- /dev/null
+++ b/package/broadcom-57xx/src/bcmendian.h
@@ -0,0 +1,198 @@
+/*
+ * local version of endian.h - byte order defines
+ *
+ * Copyright 2007, Broadcom Corporation
+ * All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ *  $Id: bcmendian.h,v 1.1.1.11 2007/05/31 08:00:41 michael Exp $
+*/
+
+#ifndef _BCMENDIAN_H_
+#define _BCMENDIAN_H_
+
+#include <typedefs.h>
+
+/* Byte swap a 16 bit value */
+#define BCMSWAP16(val) \
+       ((uint16)(\
+               (((uint16)(val) & (uint16)0x00ffU) << 8) | \
+               (((uint16)(val) & (uint16)0xff00U) >> 8)))
+
+/* Byte swap a 32 bit value */
+#define BCMSWAP32(val) \
+       ((uint32)(\
+               (((uint32)(val) & (uint32)0x000000ffUL) << 24) | \
+               (((uint32)(val) & (uint32)0x0000ff00UL) <<  8) | \
+               (((uint32)(val) & (uint32)0x00ff0000UL) >>  8) | \
+               (((uint32)(val) & (uint32)0xff000000UL) >> 24)))
+
+/* 2 Byte swap a 32 bit value */
+#define BCMSWAP32BY16(val) \
+       ((uint32)(\
+               (((uint32)(val) & (uint32)0x0000ffffUL) << 16) | \
+               (((uint32)(val) & (uint32)0xffff0000UL) >> 16)))
+
+
+static INLINE uint16
+bcmswap16(uint16 val)
+{
+       return BCMSWAP16(val);
+}
+
+static INLINE uint32
+bcmswap32(uint32 val)
+{
+       return BCMSWAP32(val);
+}
+
+static INLINE uint32
+bcmswap32by16(uint32 val)
+{
+       return BCMSWAP32BY16(val);
+}
+
+/* buf - start of buffer of shorts to swap */
+/* len  - byte length of buffer */
+static INLINE void
+bcmswap16_buf(uint16 *buf, uint len)
+{
+       len = len/2;
+
+       while (len--) {
+               *buf = bcmswap16(*buf);
+               buf++;
+       }
+}
+
+#ifndef hton16
+#ifndef IL_BIGENDIAN
+#define HTON16(i) BCMSWAP16(i)
+#define        hton16(i) bcmswap16(i)
+#define        hton32(i) bcmswap32(i)
+#define        ntoh16(i) bcmswap16(i)
+#define        ntoh32(i) bcmswap32(i)
+#define ltoh16(i) (i)
+#define ltoh32(i) (i)
+#define htol16(i) (i)
+#define htol32(i) (i)
+#else
+#define HTON16(i) (i)
+#define        hton16(i) (i)
+#define        hton32(i) (i)
+#define        ntoh16(i) (i)
+#define        ntoh32(i) (i)
+#define        ltoh16(i) bcmswap16(i)
+#define        ltoh32(i) bcmswap32(i)
+#define htol16(i) bcmswap16(i)
+#define htol32(i) bcmswap32(i)
+#endif /* IL_BIGENDIAN */
+#endif /* hton16 */
+
+#ifndef IL_BIGENDIAN
+#define ltoh16_buf(buf, i)
+#define htol16_buf(buf, i)
+#else
+#define ltoh16_buf(buf, i) bcmswap16_buf((uint16*)buf, i)
+#define htol16_buf(buf, i) bcmswap16_buf((uint16*)buf, i)
+#endif /* IL_BIGENDIAN */
+
+/*
+* store 16-bit value to unaligned little endian byte array.
+*/
+static INLINE void
+htol16_ua_store(uint16 val, uint8 *bytes)
+{
+       bytes[0] = val&0xff;
+       bytes[1] = val>>8;
+}
+
+/*
+* store 32-bit value to unaligned little endian byte array.
+*/
+static INLINE void
+htol32_ua_store(uint32 val, uint8 *bytes)
+{
+       bytes[0] = val&0xff;
+       bytes[1] = (val>>8)&0xff;
+       bytes[2] = (val>>16)&0xff;
+       bytes[3] = val>>24;
+}
+
+/*
+* store 16-bit value to unaligned network(big) endian byte array.
+*/
+static INLINE void
+hton16_ua_store(uint16 val, uint8 *bytes)
+{
+       bytes[1] = val&0xff;
+       bytes[0] = val>>8;
+}
+
+/*
+* store 32-bit value to unaligned network(big) endian byte array.
+*/
+static INLINE void
+hton32_ua_store(uint32 val, uint8 *bytes)
+{
+       bytes[3] = val&0xff;
+       bytes[2] = (val>>8)&0xff;
+       bytes[1] = (val>>16)&0xff;
+       bytes[0] = val>>24;
+}
+
+/*
+* load 16-bit value from unaligned little endian byte array.
+*/
+static INLINE uint16
+ltoh16_ua(void *bytes)
+{
+       return (((uint8*)bytes)[1]<<8)+((uint8 *)bytes)[0];
+}
+
+/*
+* load 32-bit value from unaligned little endian byte array.
+*/
+static INLINE uint32
+ltoh32_ua(void *bytes)
+{
+       return (((uint8*)bytes)[3]<<24)+(((uint8*)bytes)[2]<<16)+
+              (((uint8*)bytes)[1]<<8)+((uint8*)bytes)[0];
+}
+
+/*
+* load 16-bit value from unaligned big(network) endian byte array.
+*/
+static INLINE uint16
+ntoh16_ua(void *bytes)
+{
+       return (((uint8*)bytes)[0]<<8)+((uint8*)bytes)[1];
+}
+
+/*
+* load 32-bit value from unaligned big(network) endian byte array.
+*/
+static INLINE uint32
+ntoh32_ua(void *bytes)
+{
+       return (((uint8*)bytes)[0]<<24)+(((uint8*)bytes)[1]<<16)+
+              (((uint8*)bytes)[2]<<8)+((uint8*)bytes)[3];
+}
+
+#define ltoh_ua(ptr) (\
+       sizeof(*(ptr)) == sizeof(uint8) ?  *(uint8 *)ptr : \
+       sizeof(*(ptr)) == sizeof(uint16) ? (((uint8 *)ptr)[1]<<8)+((uint8 *)ptr)[0] : \
+       (((uint8 *)ptr)[3]<<24)+(((uint8 *)ptr)[2]<<16)+(((uint8 *)ptr)[1]<<8)+((uint8 *)ptr)[0] \
+)
+
+#define ntoh_ua(ptr) (\
+       sizeof(*(ptr)) == sizeof(uint8) ?  *(uint8 *)ptr : \
+       sizeof(*(ptr)) == sizeof(uint16) ? (((uint8 *)ptr)[0]<<8)+((uint8 *)ptr)[1] : \
+       (((uint8 *)ptr)[0]<<24)+(((uint8 *)ptr)[1]<<16)+(((uint8 *)ptr)[2]<<8)+((uint8 *)ptr)[3] \
+)
+
+#endif /* _BCMENDIAN_H_ */