1 #ifndef _H8300_IO_H
2 #define _H8300_IO_H
3
4 #ifdef __KERNEL__
5
6 #include <linux/types.h>
7
8 /* H8/300 internal I/O functions */
9
10 #define __raw_readb __raw_readb
__raw_readb(const volatile void __iomem * addr)11 static inline u8 __raw_readb(const volatile void __iomem *addr)
12 {
13 return *(volatile u8 *)addr;
14 }
15
16 #define __raw_readw __raw_readw
__raw_readw(const volatile void __iomem * addr)17 static inline u16 __raw_readw(const volatile void __iomem *addr)
18 {
19 return *(volatile u16 *)addr;
20 }
21
22 #define __raw_readl __raw_readl
__raw_readl(const volatile void __iomem * addr)23 static inline u32 __raw_readl(const volatile void __iomem *addr)
24 {
25 return *(volatile u32 *)addr;
26 }
27
28 #define __raw_writeb __raw_writeb
__raw_writeb(u8 b,const volatile void __iomem * addr)29 static inline void __raw_writeb(u8 b, const volatile void __iomem *addr)
30 {
31 *(volatile u8 *)addr = b;
32 }
33
34 #define __raw_writew __raw_writew
__raw_writew(u16 b,const volatile void __iomem * addr)35 static inline void __raw_writew(u16 b, const volatile void __iomem *addr)
36 {
37 *(volatile u16 *)addr = b;
38 }
39
40 #define __raw_writel __raw_writel
__raw_writel(u32 b,const volatile void __iomem * addr)41 static inline void __raw_writel(u32 b, const volatile void __iomem *addr)
42 {
43 *(volatile u32 *)addr = b;
44 }
45
ctrl_bclr(int b,void __iomem * addr)46 static inline void ctrl_bclr(int b, void __iomem *addr)
47 {
48 if (__builtin_constant_p(b))
49 __asm__("bclr %1,%0" : "+WU"(*(u8 *)addr): "i"(b));
50 else
51 __asm__("bclr %w1,%0" : "+WU"(*(u8 *)addr): "r"(b));
52 }
53
ctrl_bset(int b,void __iomem * addr)54 static inline void ctrl_bset(int b, void __iomem *addr)
55 {
56 if (__builtin_constant_p(b))
57 __asm__("bset %1,%0" : "+WU"(*(u8 *)addr): "i"(b));
58 else
59 __asm__("bset %w1,%0" : "+WU"(*(u8 *)addr): "r"(b));
60 }
61
62 #include <asm-generic/io.h>
63
64 #endif /* __KERNEL__ */
65
66 #endif /* _H8300_IO_H */
67