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58 lines
1.2 KiB
C
58 lines
1.2 KiB
C
#ifndef _H8300_IO_H
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#define _H8300_IO_H
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#ifdef __KERNEL__
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#include <asm-generic/io.h>
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/* H8/300 internal I/O functions */
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static inline unsigned char ctrl_inb(unsigned long addr)
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{
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return *(volatile unsigned char *)addr;
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}
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static inline unsigned short ctrl_inw(unsigned long addr)
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{
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return *(volatile unsigned short *)addr;
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}
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static inline unsigned long ctrl_inl(unsigned long addr)
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{
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return *(volatile unsigned long *)addr;
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}
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static inline void ctrl_outb(unsigned char b, unsigned long addr)
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{
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*(volatile unsigned char *)addr = b;
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}
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static inline void ctrl_outw(unsigned short b, unsigned long addr)
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{
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*(volatile unsigned short *)addr = b;
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}
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static inline void ctrl_outl(unsigned long b, unsigned long addr)
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{
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*(volatile unsigned long *)addr = b;
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}
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static inline void ctrl_bclr(int b, unsigned long addr)
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{
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if (__builtin_constant_p(b))
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__asm__("bclr %1,%0" : : "WU"(addr), "i"(b));
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else
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__asm__("bclr %w1,%0" : : "WU"(addr), "r"(b));
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}
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static inline void ctrl_bset(int b, unsigned long addr)
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{
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if (__builtin_constant_p(b))
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__asm__("bset %1,%0" : : "WU"(addr), "i"(b));
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else
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__asm__("bset %w1,%0" : : "WU"(addr), "r"(b));
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}
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#endif /* __KERNEL__ */
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#endif /* _H8300_IO_H */
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