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https://github.com/eledio-devices/thirdparty-littlefs.git
synced 2025-11-01 00:38:29 +01:00
WIP Fixed issue with big-endian ctz lists intertwined in commit logic
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22
lfs_util.h
22
lfs_util.h
@@ -11,8 +11,8 @@
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// LFS_CONFIG as a header file to include (-DLFS_CONFIG=lfs_config.h).
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//
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// If LFS_CONFIG is used, none of the default utils will be emitted and must be
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// provided by the config file. To start I would suggest copying lfs_util.h and
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// modifying as needed.
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// provided by the config file. To start, I would suggest copying lfs_util.h
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// and modifying as needed.
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#ifdef LFS_CONFIG
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#define LFS_STRINGIZE(x) LFS_STRINGIZE2(x)
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#define LFS_STRINGIZE2(x) #x
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@@ -88,6 +88,15 @@ static inline uint32_t lfs_min(uint32_t a, uint32_t b) {
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return (a < b) ? a : b;
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}
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// Align to nearest multiple of a size
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static inline uint32_t lfs_aligndown(uint32_t a, uint32_t alignment) {
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return a - (a % alignment);
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}
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static inline uint32_t lfs_alignup(uint32_t a, uint32_t alignment) {
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return lfs_aligndown(a + alignment-1, alignment);
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}
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// Find the next smallest power of 2 less than or equal to a
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static inline uint32_t lfs_npw2(uint32_t a) {
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#if !defined(LFS_NO_INTRINSICS) && (defined(__GNUC__) || defined(__CC_ARM))
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@@ -177,15 +186,6 @@ static inline uint16_t lfs_tole16(uint16_t a) {
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return lfs_fromle16(a);
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}
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// Align to nearest multiple of a size
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static inline uint32_t lfs_aligndown(uint32_t a, uint32_t alignment) {
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return a - (a % alignment);
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}
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static inline uint32_t lfs_alignup(uint32_t a, uint32_t alignment) {
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return lfs_aligndown(a + alignment-1, alignment);
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}
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// Calculate CRC-32 with polynomial = 0x04c11db7
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uint32_t lfs_crc32(uint32_t crc, const void *buffer, size_t size);
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