Generic Helper Macros

Macros
#define	MIN(x, y)   ((x) < (y) ? (x) : (y))
	Macro to get the minimum from 2 arguments.
#define	MAX(x, y)   ((x) > (y) ? (x) : (y))
	Macro to get the maximum from 2 arguments.
#define	_countof(x)   (sizeof(x) / sizeof(x[0]))
	Determine the number of elements in an array. More...
#define	WICED_SWAP16(val)
	Macro to reverse bytes in a 16-bit value. More...
#define	WICED_SWAP32(val)
	Macro to reverse bytes in a 32-bit value. More...
#define	WICED_SWAP64(val)
	Macro to reverse bytes in a 64-bit value. More...
#define	WICED_NTOH16(val)
	Load 16-bit value from unaligned big-endian byte array. More...
#define	WICED_NTOH32(val)
	Load 32-bit value from unaligned big-endian byte array. More...
#define	WICED_NTOH64(val)
	Load 64-bit value from unaligned big-endian byte array. More...

Detailed Description

Macro Definition Documentation

#define _countof

(

x

)

(sizeof(x) / sizeof(x[0]))

Determine the number of elements in an array.

#define WICED_NTOH16

(

val

)

Value:

((uint16_t)( \
        ((uint16_t)((val)[0]) << 8) | \
        ((uint16_t)((val)[1]))))

Load 16-bit value from unaligned big-endian byte array.

#define WICED_NTOH32

(

val

)

Value:

((uint32_t)( \
        ((uint32_t)((val)[0]) << 24) | \
        ((uint32_t)((val)[1]) << 16) | \
        ((uint32_t)((val)[2]) <<  8) | \
        ((uint32_t)((val)[3]))))

Load 32-bit value from unaligned big-endian byte array.

#define WICED_NTOH64

(

val

)

Value:

((uint64_t)( \
        ((uint64_t)((val)[0]) << 56) | \
        ((uint64_t)((val)[1]) << 48) | \
        ((uint64_t)((val)[2]) << 40) | \
        ((uint64_t)((val)[3]) << 32) | \
        ((uint64_t)((val)[4]) << 24) | \
        ((uint64_t)((val)[5]) << 16) | \
        ((uint64_t)((val)[6]) <<  8) | \
        ((uint64_t)((val)[7]))))

Load 64-bit value from unaligned big-endian byte array.

#define WICED_SWAP16

(

val

)

Value:

((uint16_t)((((uint16_t)(val) & (uint16_t)0x00ffU) << 8) | \
        (((uint16_t)(val) & (uint16_t)0xff00U) >> 8)))

Macro to reverse bytes in a 16-bit value.

#define WICED_SWAP32

(

val

)

Value:

((uint32_t)((((uint32_t)(val) & (uint32_t)0x000000ffU) << 24) | \
        (((uint32_t)(val) & (uint32_t)0x0000ff00U) <<  8) | \
        (((uint32_t)(val) & (uint32_t)0x00ff0000U) >>  8) | \
        (((uint32_t)(val) & (uint32_t)0xff000000U) >> 24)))

Macro to reverse bytes in a 32-bit value.

#define WICED_SWAP64

(

val

)

Value:

((uint64_t)( \
        (((uint64_t)(val) & (uint64_t)0x00000000000000ffllU) << 56) | \
        (((uint64_t)(val) & (uint64_t)0x000000000000ff00llU) << 40) | \
        (((uint64_t)(val) & (uint64_t)0x0000000000ff0000llU) << 24) | \
        (((uint64_t)(val) & (uint64_t)0x00000000ff000000llU) <<  8) | \
        (((uint64_t)(val) & (uint64_t)0x000000ff00000000llU) >>  8) | \
        (((uint64_t)(val) & (uint64_t)0x0000ff0000000000llU) >> 24) | \
        (((uint64_t)(val) & (uint64_t)0x00ff000000000000llU) >> 40) | \
        (((uint64_t)(val) & (uint64_t)0xff00000000000000llU) >> 56)))

Macro to reverse bytes in a 64-bit value.