67 lines
1.4 KiB
C
67 lines
1.4 KiB
C
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#ifndef _H8300_IO_H
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#define _H8300_IO_H
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#ifdef __KERNEL__
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#include <linux/types.h>
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/* H8/300 internal I/O functions */
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#define __raw_readb __raw_readb
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static inline u8 __raw_readb(const volatile void __iomem *addr)
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{
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return *(volatile u8 *)addr;
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}
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#define __raw_readw __raw_readw
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static inline u16 __raw_readw(const volatile void __iomem *addr)
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{
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return *(volatile u16 *)addr;
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}
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#define __raw_readl __raw_readl
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static inline u32 __raw_readl(const volatile void __iomem *addr)
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{
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return *(volatile u32 *)addr;
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}
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#define __raw_writeb __raw_writeb
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static inline void __raw_writeb(u8 b, const volatile void __iomem *addr)
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{
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*(volatile u8 *)addr = b;
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}
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#define __raw_writew __raw_writew
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static inline void __raw_writew(u16 b, const volatile void __iomem *addr)
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{
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*(volatile u16 *)addr = b;
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}
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#define __raw_writel __raw_writel
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static inline void __raw_writel(u32 b, const volatile void __iomem *addr)
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{
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*(volatile u32 *)addr = b;
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}
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static inline void ctrl_bclr(int b, void __iomem *addr)
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{
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if (__builtin_constant_p(b))
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__asm__("bclr %1,%0" : "+WU"(*(u8 *)addr): "i"(b));
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else
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__asm__("bclr %w1,%0" : "+WU"(*(u8 *)addr): "r"(b));
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}
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static inline void ctrl_bset(int b, void __iomem *addr)
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{
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if (__builtin_constant_p(b))
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__asm__("bset %1,%0" : "+WU"(*(u8 *)addr): "i"(b));
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else
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__asm__("bset %w1,%0" : "+WU"(*(u8 *)addr): "r"(b));
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}
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#include <asm-generic/io.h>
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#endif /* __KERNEL__ */
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#endif /* _H8300_IO_H */
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