Chloe M.
49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
/*
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* Copyright (c) 2026, Chloe M.
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* Provided under the BSD-3 clause.
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*
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* Description: MMIO helpers
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* Author: Chloe M.
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*/
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#ifndef _MU_MMIO_H_
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#define _MU_MMIO_H_ 1
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#include <stdef.h>
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/* Builds mmio_write<n> functions */
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#define _MMIO_WRITE_BUILDER(NAME, TYPE) \
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static inline void \
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MMIO##NAME(volatile TYPE *ptr, TYPE val) \
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{ \
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BARRIER(); \
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*(volatile TYPE *)ptr = val; \
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}
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/* Builds mmio_read<n> functions */
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#define _MMIO_READ_BUILDER(NAME, TYPE) \
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static inline TYPE \
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MMIO##NAME(volatile TYPE *ptr) \
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{ \
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BARRIER(); \
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return *(volatile TYPE *)ptr; \
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}
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/* mmio_write<n> */
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_MMIO_WRITE_BUILDER(Write8, UCHAR);
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_MMIO_WRITE_BUILDER(Write16, USHORT);
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_MMIO_WRITE_BUILDER(Write32, ULONG);
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#if __SIZEOF_SIZE_T__ == 8
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_MMIO_WRITE_BUILDER(Write64, UQUAD);
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#endif
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/* Builds mmio_read<n> functions */
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_MMIO_READ_BUILDER(Read8, UCHAR);
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_MMIO_READ_BUILDER(Read16, USHORT);
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_MMIO_READ_BUILDER(Read32, ULONG);
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#if __SIZEOF_SIZE_T__ == 8
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_MMIO_READ_BUILDER(Read64, UQUAD);
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#endif
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#endif /* !_MU_MMIO_H_ */
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