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Added PIC initialization and keyboard.

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This commit is contained in:
Patrick
2024-01-18 02:24:42 +01:00
parent f03963a485
commit 04d25d498d
11 changed files with 1022 additions and 34 deletions
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36
targets/_any/include/os/port.hpp Normal file
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@@ -0,0 +1,36 @@
#pragma once
#if !defined(BAD_APPLE_OS_PORT_HPP_INCLUDED)
#define BAD_APPLE_OS_PORT_HPP_INCLUDED
#include <cstdint>
#define writePortByte(port, value) \
{ \
__asm__ __volatile__( \
"outb %0, %1" \
: \
: "a"(static_cast<std::uint8_t>(value)), \
"Nd"(static_cast<std::uint16_t>(port)) \
); \
}
#define readPortByte(port) \
[&]() \
{ \
std::uint8_t value = 0; \
__asm__ __volatile__( \
"inb %1, %0" \
: "=a"(value) \
: "Nd"(static_cast<std::uint16_t>(port)) \
); \
return value; \
}()
inline void ioWait() noexcept
{
writePortByte(0x80, 0);
}
#endif // !defined(BAD_APPLE_OS_PORT_HPP_INCLUDED)

22
targets/_any/include/os/serial.hpp
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@@ -6,6 +6,8 @@
#include <cstdint>
#include "./port.hpp"
inline constexpr std::uint16_t PORT_COM1 = 0x3F8;
inline constexpr std::uint16_t PORT_COM2 = 0x2F8;
inline constexpr std::uint16_t PORT_COM3 = 0x3E8;
@@ -15,26 +17,6 @@ inline constexpr std::uint16_t PORT_COM6 = 0x4F8;
inline constexpr std::uint16_t PORT_COM7 = 0x5E8;
inline constexpr std::uint16_t PORT_COM8 = 0x4E8;
inline void writePortByte(std::uint16_t port, std::uint8_t value) noexcept
{
__asm__ __volatile__(
"outb %0, %1"
:
: "a"(value), "Nd"(port)
);
}
inline std::uint8_t readPortByte(std::uint16_t port) noexcept
{
std::uint8_t value = 0;
__asm__ __volatile__(
"inb %1, %0"
: "=a"(value)
: "Nd"(port)
);
return value;
}
[[nodiscard]] inline bool initSerialPort(std::uint16_t port) noexcept
{
writePortByte(port + 1, 0x00); // Disable all interrupts