diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/i386/bits/io.h | 80 | ||||
| -rw-r--r-- | arch/x86_64/bits/io.h | 80 |
2 files changed, 160 insertions, 0 deletions
diff --git a/arch/i386/bits/io.h b/arch/i386/bits/io.h new file mode 100644 index 00000000..d26ea57b --- /dev/null +++ b/arch/i386/bits/io.h @@ -0,0 +1,80 @@ +int iopl(int); +int ioperm(unsigned long, unsigned long, int); + +static __inline void outb(unsigned char __val, unsigned short __port) +{ + __asm__ volatile ("outb %0,%1" : : "a" (__val), "dN" (__port)); +} + +static __inline void outw(unsigned short __val, unsigned short __port) +{ + __asm__ volatile ("outw %0,%1" : : "a" (__val), "dN" (__port)); +} + +static __inline void outl(unsigned int __val, unsigned short __port) +{ + __asm__ volatile ("outl %0,%1" : : "a" (__val), "dN" (__port)); +} + +static __inline unsigned char inb(unsigned short __port) +{ + unsigned char __val; + __asm__ volatile ("inb %1,%0" : "=a" (__val) : "dN" (__port)); + return __val; +} + +static __inline unsigned short inw(unsigned short __port) +{ + unsigned short __val; + __asm__ volatile ("inw %1,%0" : "=a" (__val) : "dN" (__port)); + return __val; +} + +static __inline unsigned int inl(unsigned short __port) +{ + unsigned int __val; + __asm__ volatile ("inl %1,%0" : "=a" (__val) : "dN" (__port)); + return __val; +} + +static __inline void outsb(unsigned short __port, const void *__buf, unsigned long __n) +{ + __asm__ volatile ("cld; rep; outsb" + : "+S" (__buf), "+c" (__n) + : "d" (__port)); +} + +static __inline void outsw(unsigned short __port, const void *__buf, unsigned long __n) +{ + __asm__ volatile ("cld; rep; outsw" + : "+S" (__buf), "+c" (__n) + : "d" (__port)); +} + +static __inline void outsl(unsigned short __port, const void *__buf, unsigned long __n) +{ + __asm__ volatile ("cld; rep; outsl" + : "+S" (__buf), "+c"(__n) + : "d" (__port)); +} + +static __inline void insb(unsigned short __port, void *__buf, unsigned long __n) +{ + __asm__ volatile ("cld; rep; insb" + : "+D" (__buf), "+c" (__n) + : "d" (__port)); +} + +static __inline void insw(unsigned short __port, void *__buf, unsigned long __n) +{ + __asm__ volatile ("cld; rep; insw" + : "+D" (__buf), "+c" (__n) + : "d" (__port)); +} + +static __inline void insl(unsigned short __port, void *__buf, unsigned long __n) +{ + __asm__ volatile ("cld; rep; insl" + : "+D" (__buf), "+c" (__n) + : "d" (__port)); +} diff --git a/arch/x86_64/bits/io.h b/arch/x86_64/bits/io.h new file mode 100644 index 00000000..d26ea57b --- /dev/null +++ b/arch/x86_64/bits/io.h @@ -0,0 +1,80 @@ +int iopl(int); +int ioperm(unsigned long, unsigned long, int); + +static __inline void outb(unsigned char __val, unsigned short __port) +{ + __asm__ volatile ("outb %0,%1" : : "a" (__val), "dN" (__port)); +} + +static __inline void outw(unsigned short __val, unsigned short __port) +{ + __asm__ volatile ("outw %0,%1" : : "a" (__val), "dN" (__port)); +} + +static __inline void outl(unsigned int __val, unsigned short __port) +{ + __asm__ volatile ("outl %0,%1" : : "a" (__val), "dN" (__port)); +} + +static __inline unsigned char inb(unsigned short __port) +{ + unsigned char __val; + __asm__ volatile ("inb %1,%0" : "=a" (__val) : "dN" (__port)); + return __val; +} + +static __inline unsigned short inw(unsigned short __port) +{ + unsigned short __val; + __asm__ volatile ("inw %1,%0" : "=a" (__val) : "dN" (__port)); + return __val; +} + +static __inline unsigned int inl(unsigned short __port) +{ + unsigned int __val; + __asm__ volatile ("inl %1,%0" : "=a" (__val) : "dN" (__port)); + return __val; +} + +static __inline void outsb(unsigned short __port, const void *__buf, unsigned long __n) +{ + __asm__ volatile ("cld; rep; outsb" + : "+S" (__buf), "+c" (__n) + : "d" (__port)); +} + +static __inline void outsw(unsigned short __port, const void *__buf, unsigned long __n) +{ + __asm__ volatile ("cld; rep; outsw" + : "+S" (__buf), "+c" (__n) + : "d" (__port)); +} + +static __inline void outsl(unsigned short __port, const void *__buf, unsigned long __n) +{ + __asm__ volatile ("cld; rep; outsl" + : "+S" (__buf), "+c"(__n) + : "d" (__port)); +} + +static __inline void insb(unsigned short __port, void *__buf, unsigned long __n) +{ + __asm__ volatile ("cld; rep; insb" + : "+D" (__buf), "+c" (__n) + : "d" (__port)); +} + +static __inline void insw(unsigned short __port, void *__buf, unsigned long __n) +{ + __asm__ volatile ("cld; rep; insw" + : "+D" (__buf), "+c" (__n) + : "d" (__port)); +} + +static __inline void insl(unsigned short __port, void *__buf, unsigned long __n) +{ + __asm__ volatile ("cld; rep; insl" + : "+D" (__buf), "+c" (__n) + : "d" (__port)); +} |