arch/h8300/include/asm/io.h

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