1 files changed, 0 insertions, 364 deletions
diff --git a/include/apos/bits.h b/include/apos/bits.h
deleted file mode 100644
index adb8e85..0000000
--- a/include/apos/bits.h
+++ /dev/null
@@ -1,364 +0,0 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
-
-#ifndef APOS_BITS_H
-#define APOS_BITS_H
-
-/**
- * @file bits.h
- * Bit manipulations.
- */
-
-#include <apos/types.h>
-#include <apos/builtin.h>
-
-/** @name Arithmetic integer bit manipulation. */
-/** @{ */
-/**
- * Find first set bit in \c int.
- *
- * @param v Integer to find first set bit in.
- * @return Index of least significant bit + 1 or 0 if \p v is 0.
- */
-#if __has_builtin(__builtin_ffs)
-#define ffs(v) __builtin_ffs(v)
-#else
-int ffs(int v);
-#endif
-
-/**
- * Check if bits are set.
- *
- * @param x Value to check in.
- * @param y Mask of bits to check.
- * @return \c 0 if none of the bits aren't set, non-zero otherwise.
- */
-#define is_set(x, y) ((x) & (y))
-
-/**
- * Set bits.
- *
- * @param x Value to set in.
- * @param y Mask of bits to set.
- */
-#define set_bits(x, y) ((x) |= (y))
-
-/**
- * Clear bits.
- *
- * @param x Value to clear in.
- * @param y Mask of bits to clear.
- */
-#define clear_bits(x, y) ((x) &= ~(y))
-
-/**
- * Set bit.
- * Wrapper around \ref set_bits() for when only one bit is changed,
- * mostly just for readability purposes.
- *
- * @param x Value to set in.
- * @param y Mask of bit to set.
- */
-#define set_bit(x, y) set_bits(x, y)
-
-/** Clear bit.
- * Wrapper around \ref clear_bits() for when only one bit is
- * changed, mostly just for readability purposes.
- *
- * @param x Value to clear in.
- * @param y Mask of bit to clear.
- */
-#define clear_bit(x, y) clear_bits(x, y)
-
-/**
- * Is nth bit set.
- *
- * @param x Value to check in.
- * @param y Index of bit to check.
- * @return \c 0 if bit is not set, non-zero otherwise.
- */
-#define is_nset(x, y) (is_set((x), 1UL << (y)))
-
-/**
- * Set nth bit.
- *
- * @param x Value to set in.
- * @param y Index of bit to set.
- */
-#define set_nbit(x, y) (set_bit((x), 1UL << (y)))
-
-/** Clear nth bit.
- *
- * @param x Value to clear in.
- * @param y Index of bit to clear.
- */
-#define clear_nbit(x, y) (clear_bit((x), 1UL << (y)))
-
-/** @} */
-
-/**
- * @name Bitmap manipulation.
- * A bitmap can be any number of bits in an array-like structure.
- */
-/** @{ */
-
-/**
- * Is nth bit set in bitmap.
- *
- * @param bmap Pointer to bitmap.
- * @param n Index of bit to check.
- * @return \c 0 if bit is not set, non-zero otherwise.
- */
-static inline bool bitmap_is_set(void *bmap, size_t n)
-{
-	uint8_t *bitmap = bmap;
-	size_t i = n / 8;
-	size_t r = n - (i * 8);
-	return is_nset(bitmap[i], r);
-}
-
-/**
- * Set nth bit in bitmap.
- *
- * @param bmap Bitmap.
- * @param n Index of bit to set.
- */
-static inline void bitmap_set(void *bmap, size_t n)
-{
-	uint8_t *bitmap = bmap;
-	size_t i = n / 8;
-	size_t r = n - (i * 8);
-	set_nbit(bitmap[i], r);
-}
-
-/**
- * Clear nth bit in bitmap.
- *
- * @param bmap Bitmap.
- * @param n Index of bit to clear.
- */
-static inline void bitmap_clear(void *bmap, size_t n)
-{
-	uint8_t *bitmap = bmap;
-	size_t i = n / 8;
-	size_t r = n - (i * 8);
-	clear_nbit(bitmap[i], r);
-}
-
-/**
- * Find first bit, either set or unset, in bitmap.
- *
- * @param bmap Bitmap.
- * @param n Size of bitmap in bits.
- * @param set Wether to seek for set or unset bits.
- * @return Index of found bit + 1 or \p n + 1 if no bit was found.
- */
-static inline size_t bitmap_find_first(void *bmap, size_t n, bool set)
-{
-	size_t i = n / (sizeof(int) * 8);
-
-	size_t c = 0;
-	int *imap = (int *)bmap;
-
-	int target = set ? 0 : -1;
-	for (; c < i; ++c)
-		if (imap[c] != target)
-			break;
-
-	size_t b = c * sizeof(int) * 8;
-	int check = set ? imap[c] : ~imap[c];
-	if (c != i)
-		return b + ffs(check) - 1;
-
-	size_t r = n - (i * sizeof(int) * 8);
-	if (!r)
-		return n + 1;
-
-	bool comp = set ? true : false;
-	for (size_t a = 0; a < r; ++a)
-		if (bitmap_is_set(bmap, b + a) == comp)
-			return b + a;
-
-	return n + 1;
-}
-
-/**
- * Convenience wrapper around bitmap_find_first().
- *
- * @param bmap \see bitmap_find_first().
- * @param n \see bitmap_find_first().
- * @return \see bitmap_find_first().
- */
-static inline size_t bitmap_find_first_unset(void *bmap, size_t n)
-{
-	return bitmap_find_first(bmap, n, false);
-}
-
-/**
- * Convenience wrapper around bitmap_find_first().
- *
- * @param bmap \see bitmap_find_first().
- * @param n \see bitmap_find_first().
- * @return \see bitmap_find_first().
- */
-static inline size_t bitmap_find_first_set(void *bmap, size_t n)
-{
-	return bitmap_find_first(bmap, n, true);
-}
-
-/** @} */
-
-/**
- * Swap byte order in \ref uint16_t.
- *
- * @param u \ref uint16_t to swap.
- * @return \c u with its byte order swapper.
- */
-uint16_t __bswap16(uint16_t u);
-
-/**
- * Swap byte order in \ref uint32_t.
- *
- * @param u \ref uint32_t to swap.
- * @return \c u with its byte order swapped.
- */
-uint32_t __bswap32(uint32_t u);
-
-/**
- * Swap byte order in \ref uint64_t.
- *
- * @param u \ref uint64_t to swap.
- * @return \c u with its byte order swapped.
- */
-uint64_t __bswap64(uint64_t u);
-
-#if __has_builtin(__builtin_bswap16)
-#define __bswap16(x) __builtin_bswap16(x)
-#endif
-
-#if __has_builtin(__builtin_bswap32)
-#define __bswap32(x) __builtin_bswap32(x)
-#endif
-
-#if __has_builtin(__builtin_bswap64)
-#define __bswap64(x) __builtin_bswap64(x)
-#endif
-
-#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
-
-/**
- * Convert big endian \ref uint16_t to cpu endianness.
- *
- * @param x \ref uint16_t to convert.
- * @return \c x in cpu endianness.
- */
-#define be16_to_cpu(x) __bswap16(x)
-
-/**
- * Convert big endian \ref uint32_t to cpu endianness.
- *
- * @param x \ref uint32_t to convert.
- * @return \c x in cpu endianness.
- */
-#define be32_to_cpu(x) __bswap32(x)
-
-/**
- * Convert big endian \ref uint64_t to cpu endianness.
- *
- * @param x \ref uint64_t to convert.
- * @return \c x in cpu endianness.
- */
-#define be64_to_cpu(x) __bswap64(x)
-
-/**
- * Convert cpu endian \ref uint16_t to big endian.
- *
- * @param x \ref uint16_t to convert.
- * @return \c x in big endian.
- */
-#define cpu_to_be16(x) __bswap16(x)
-
-/**
- * Convert cpu endian \ref uint32_t to big endian.
- *
- * @param x \ref uint32_t to convert.
- * @return \c x in big endian.
- */
-#define cpu_to_be32(x) __bswap32(x)
-
-/**
- * Convert cpu endian to \ref uint64_t to big endian.
- *
- * @param x \ref uint64_t to convert.
- * @return \c x in big endian.
- */
-#define cpu_to_be64(x) __bswap64(x)
-
-/**
- * Convert little endian \ref uint16_t to cpu endianness.
- *
- * @param x \ref uint16_t to convert.
- * @return \c x in cpu endianness.
- */
-#define le16_to_cpu(x) (x)
-
-/**
- * Convert little endian \ref uint32_t to cpu endianness.
- *
- * @param x \ref uint32_t to convert.
- * @return \c x in cpu endianness.
- */
-#define le32_to_cpu(x) (x)
-
-/**
- * Convert little endian \ref uint64_t to cpu endianness.
- *
- * @param x \ref uint64_t to convert.
- * @return \c x in cpu endianness.
- */
-#define le64_to_cpu(x) (x)
-
-/**
- * Convert cpu endian \ref uint16_t to little endian.
- *
- * @param x \ref uint16_t to convert.
- * @return \c x in little endian.
- */
-#define cpu_to_le16(x) (x)
-
-/**
- * Convert cpu endian \ref uint32_t to little endian.
- *
- * @param x \ref uint32_t to convert.
- * @return \c x in little endian.
- */
-#define cpu_to_le32(x) (x)
-
-/** Convert cpu endian \ref uint64_t to little endian.
- *
- * @param x \ref uint64_t to convert.
- * @return \c x in little endian.
- */
-#define cpu_to_le64(x) (x)
-
-#else
-
-#define be16_to_cpu(x) (x)
-#define be32_to_cpu(x) (x)
-#define be64_to_cpu(x) (x)
-
-#define cpu_to_be16(x) (x)
-#define cpu_to_be32(x) (x)
-#define cpu_to_be64(x) (x)
-
-#define le16_to_cpu(x) __bswap16(x)
-#define le32_to_cpu(x) __bswap32(x)
-#define le64_to_cpu(x) __bswap64(x)
-
-#define cpu_to_le16(x) __bswap16(x)
-#define cpu_to_le32(x) __bswap32(x)
-#define cpu_to_le64(x) __bswap64(x)
-
-#endif
-
-#endif /* APOS_BITS_H */