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 */
ctrl_inb(unsigned long addr)9 static inline unsigned char ctrl_inb(unsigned long addr)
10 {
11 return *(volatile unsigned char *)addr;
12 }
13
ctrl_inw(unsigned long addr)14 static inline unsigned short ctrl_inw(unsigned long addr)
15 {
16 return *(volatile unsigned short *)addr;
17 }
18
ctrl_inl(unsigned long addr)19 static inline unsigned long ctrl_inl(unsigned long addr)
20 {
21 return *(volatile unsigned long *)addr;
22 }
23
ctrl_outb(unsigned char b,unsigned long addr)24 static inline void ctrl_outb(unsigned char b, unsigned long addr)
25 {
26 *(volatile unsigned char *)addr = b;
27 }
28
ctrl_outw(unsigned short b,unsigned long addr)29 static inline void ctrl_outw(unsigned short b, unsigned long addr)
30 {
31 *(volatile unsigned short *)addr = b;
32 }
33
ctrl_outl(unsigned long b,unsigned long addr)34 static inline void ctrl_outl(unsigned long b, unsigned long addr)
35 {
36 *(volatile unsigned long *)addr = b;
37 }
38
ctrl_bclr(int b,unsigned char * addr)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
ctrl_bset(int b,unsigned char * addr)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 */
58