sys: util: Make FIELD_* available from device tree (46367ff1) · Commits · Wenxi XU / zephyr

include/zephyr/sys/util.h

+0 −16

Original line number	Diff line number	Diff line
		@@ -77,22 +77,6 @@ extern "C" {
		#define GENMASK64(h, l) \
		(((~0ULL) - (1ULL << (l)) + 1) & (~0ULL >> (BITS_PER_LONG_LONG - 1 - (h))))

		/** @brief Extract the Least Significant Bit from @p value. */
		#define LSB_GET(value) ((value) & -(value))

		/**
		* @brief Extract a bitfield element from @p value corresponding to
		* the field mask @p mask.
		*/
		#define FIELD_GET(mask, value) (((value) & (mask)) / LSB_GET(mask))

		/**
		* @brief Prepare a bitfield element using @p value with @p mask representing
		* its field position and width. The result should be combined
		* with other fields using a logical OR.
		*/
		#define FIELD_PREP(mask, value) (((value) * LSB_GET(mask)) & (mask))

		/** @brief 0 if @p cond is true-ish; causes a compile error otherwise. */
		#define ZERO_OR_COMPILE_ERROR(cond) ((int) sizeof(char[1 - 2 * !(cond)]) - 1)

+16 −0

Original line number	Diff line number	Diff line
		@@ -93,6 +93,22 @@ extern "C" {
		*/
		#define IS_BIT_MASK(m) IS_SHIFTED_BIT_MASK(m, 0)

		/** @brief Extract the Least Significant Bit from @p value. */
		#define LSB_GET(value) ((value) & -(value))

		/**
		* @brief Extract a bitfield element from @p value corresponding to
		* the field mask @p mask.
		*/
		#define FIELD_GET(mask, value) (((value) & (mask)) / LSB_GET(mask))

		/**
		* @brief Prepare a bitfield element using @p value with @p mask representing
		* its field position and width. The result should be combined
		* with other fields using a logical OR.
		*/
		#define FIELD_PREP(mask, value) (((value) * LSB_GET(mask)) & (mask))

		/**
		* @brief Check for macro definition in compiler-visible expressions
		*