53 lines
1.0 KiB
C
53 lines
1.0 KiB
C
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#ifndef __HW_COMMON_H
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#define __HW_COMMON_H
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#include <stdint.h>
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/* To overwrite CSR accessors, define extern, non-inlined versions
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* of csr_read[bwl]() and csr_write[bwl](), and define
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* CSR_ACCESSORS_DEFINED.
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*/
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#ifndef CSR_ACCESSORS_DEFINED
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#define CSR_ACCESSORS_DEFINED
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#ifdef __ASSEMBLER__
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#define MMPTR(x) x
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#else /* ! __ASSEMBLER__ */
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#define MMPTR(x) (*((volatile unsigned int *)(x)))
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static inline void csr_writeb(uint8_t value, uint32_t addr)
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{
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*((volatile uint8_t *)addr) = value;
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}
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static inline uint8_t csr_readb(uint32_t addr)
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{
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return *(volatile uint8_t *)addr;
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}
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static inline void csr_writew(uint16_t value, uint32_t addr)
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{
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*((volatile uint16_t *)addr) = value;
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}
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static inline uint16_t csr_readw(uint32_t addr)
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{
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return *(volatile uint16_t *)addr;
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}
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static inline void csr_writel(uint32_t value, uint32_t addr)
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{
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*((volatile uint32_t *)addr) = value;
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}
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static inline uint32_t csr_readl(uint32_t addr)
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{
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return *(volatile uint32_t *)addr;
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}
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#endif /* ! __ASSEMBLER__ */
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#endif /* ! CSR_ACCESSORS_DEFINED */
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#endif /* __HW_COMMON_H */
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