arch/h8300/include/asm/io.h

   1 #ifndef _H8300_IO_H
   2 #define _H8300_IO_H
   3
   4 #ifdef __KERNEL__
   5
   6 /* H8/300 internal I/O functions */
   7
   8 #define __raw_readb __raw_readb
   9 static inline u8 __raw_readb(const volatile void __iomem *addr)
  10 {
  11         return *(volatile u8 *)addr;
  12 }
  13
  14 #define __raw_readw __raw_readw
  15 static inline u16 __raw_readw(const volatile void __iomem *addr)
  16 {
  17         return *(volatile u16 *)addr;
  18 }
  19
  20 #define __raw_readl __raw_readl
  21 static inline u32  __raw_readl(const volatile void __iomem *addr)
  22 {
  23         return *(volatile u32 *)addr;
  24 }
  25
  26 #define __raw_writeb __raw_writeb
  27 static inline void __raw_writeb(u8 b, const volatile void __iomem *addr)
  28 {
  29         *(volatile u8 *)addr = b;
  30 }
  31
  32 #define __raw_writew __raw_writew
  33 static inline void __raw_writew(u16 b, const volatile void __iomem *addr)
  34 {
  35         *(volatile u16 *)addr = b;
  36 }
  37
  38 #define __raw_writel __raw_writel
  39 static inline void __raw_writel(u32 b, const volatile void __iomem *addr)
  40 {
  41         *(volatile u32 *)addr = b;
  42 }
  43
  44 static inline void ctrl_bclr(int b, void __iomem *addr)
  45 {
  46         if (__builtin_constant_p(b))
  47                 __asm__("bclr %1,%0" : "+WU"(*addr): "i"(b));
  48         else
  49                 __asm__("bclr %w1,%0" : "+WU"(*addr): "r"(b));
  50 }
  51
  52 static inline void ctrl_bset(int b, void __iomem *addr)
  53 {
  54         if (__builtin_constant_p(b))
  55                 __asm__("bset %1,%0" : "+WU"(*addr): "i"(b));
  56         else
  57                 __asm__("bset %w1,%0" : "+WU"(*addr): "r"(b));
  58 }
  59
  60 #include <asm-generic/io.h>
  61
  62 #endif /* __KERNEL__ */
  63
  64 #endif /* _H8300_IO_H */