mirror of
https://github.com/EnderIce2/Fennix.git
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159 lines
3.1 KiB
C
159 lines
3.1 KiB
C
/*
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This file is part of Fennix Kernel.
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Fennix Kernel is free software: you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation, either version 3 of
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the License, or (at your option) any later version.
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Fennix Kernel is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef __FENNIX_KERNEL_IO_H__
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#define __FENNIX_KERNEL_IO_H__
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#include <types.h>
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#if defined(__amd64__) || defined(__i386__)
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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static inline uint8_t inb(uint16_t Port)
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{
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uint8_t Result;
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asm("in %%dx, %%al"
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: "=a"(Result)
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: "d"(Port));
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return Result;
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}
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static inline uint16_t inw(uint16_t Port)
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{
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uint16_t Result;
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asm("in %%dx, %%ax"
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: "=a"(Result)
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: "d"(Port));
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return Result;
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}
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static inline uint32_t inl(uint16_t Port)
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{
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uint32_t Result;
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asmv("inl %1, %0"
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: "=a"(Result)
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: "dN"(Port));
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return Result;
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}
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static inline void outb(uint16_t Port, uint8_t Data)
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{
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asmv("out %%al, %%dx"
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:
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: "a"(Data), "d"(Port));
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}
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static inline void outw(uint16_t Port, uint16_t Data)
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{
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asmv("out %%ax, %%dx"
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:
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: "a"(Data), "d"(Port));
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}
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static inline void outl(uint16_t Port, uint32_t Data)
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{
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asmv("outl %1, %0"
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:
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: "dN"(Port), "a"(Data));
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}
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static inline void mmoutb(void *Address, uint8_t Value)
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{
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asmv("mov %1, %0"
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: "=m"((*(uint8_t *)(Address)))
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: "r"(Value)
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: "memory");
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}
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static inline void mmoutw(void *Address, uint16_t Value)
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{
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asmv("mov %1, %0"
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: "=m"((*(uint16_t *)(Address)))
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: "r"(Value)
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: "memory");
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}
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static inline void mmoutl(void *Address, uint32_t Value)
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{
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asmv("mov %1, %0"
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: "=m"((*(uint32_t *)(Address)))
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: "r"(Value)
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: "memory");
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}
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#if defined(__amd64__)
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static inline void mmoutq(void *Address, uint64_t Value)
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{
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asmv("mov %1, %0"
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: "=m"((*(uint64_t *)(Address)))
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: "r"(Value)
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: "memory");
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}
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#endif
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static inline uint8_t mminb(void *Address)
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{
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uint8_t Result;
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asmv("mov %1, %0"
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: "=r"(Result)
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: "m"((*(uint8_t *)(Address)))
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: "memory");
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return Result;
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}
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static inline uint16_t mminw(void *Address)
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{
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uint16_t Result;
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asmv("mov %1, %0"
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: "=r"(Result)
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: "m"((*(uint16_t *)(Address)))
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: "memory");
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return Result;
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}
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static inline uint32_t mminl(void *Address)
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{
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uint32_t Result;
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asmv("mov %1, %0"
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: "=r"(Result)
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: "m"((*(uint32_t *)(Address)))
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: "memory");
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return Result;
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}
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#if defined(__amd64__)
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static inline uint64_t mminq(void *Address)
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{
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uint64_t Result;
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asmv("mov %1, %0"
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: "=r"(Result)
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: "m"((*(uint64_t *)(Address)))
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: "memory");
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return Result;
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}
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif // defined(__amd64__) || defined(__i386__)
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#endif // !__FENNIX_KERNEL_IO_H__
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