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| author | Joursoir <chat@joursoir.net> | 2021-08-30 12:37:38 +0000 |
|---|---|---|
| committer | Joursoir <chat@joursoir.net> | 2021-08-30 12:37:38 +0000 |
| commit | a4d749210d4a628552717e9d3fe3ebf7ed84f1f0 (patch) | |
| tree | 57bae5d3b1b5d9092309f9e3efa307028960a6a3 /arch/x86/include/asm | |
| parent | d206791e894510d04adf6b24d6da729ca85604e7 (diff) | |
| download | mfsos-a4d749210d4a628552717e9d3fe3ebf7ed84f1f0.tar.gz mfsos-a4d749210d4a628552717e9d3fe3ebf7ed84f1f0.tar.bz2 mfsos-a4d749210d4a628552717e9d3fe3ebf7ed84f1f0.zip | |
move the arch specific code for port IO to the correct place
Diffstat (limited to 'arch/x86/include/asm')
| -rw-r--r-- | arch/x86/include/asm/io.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h new file mode 100644 index 0000000..02009d5 --- /dev/null +++ b/arch/x86/include/asm/io.h @@ -0,0 +1,15 @@ +#ifndef ASM_X86_IO_H +#define ASM_X86_IO_H + +#include <stdint.h> + +static inline void outb(uint16_t port, uint8_t data) +{ + asm volatile ( + "out %0,%1" + : /* no output */ + : "a" (data), "d" (port) + ); +} + +#endif /* ASM_X86_IO_H */ |