Enrico Fraccaroli (Galfurian)
51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
/// @file port_io.h
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/// @brief Byte I/O on ports prototypes.
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/// @copyright (c) 2014-2022 This file is distributed under the MIT License.
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/// See LICENSE.md for details.
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#pragma once
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#include "stdint.h"
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/// @brief Used for reading from the I/O ports.
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/// @param port The input port.
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/// @return The read value.
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uint8_t inportb(uint16_t port);
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/// @brief Used for reading 2 bytes from the I/O ports.
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/// @param port The input port.
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/// @return The read value.
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uint16_t inports(uint16_t port);
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/// @brief Read from the given port and store what we read in `data`.
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/// @param port The input port.
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/// @param data The buffer where we store what we read.
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/// @param size The dimension of the buffer.
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void inportsm(uint16_t port, uint8_t *data, unsigned long size);
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/// @brief Used for reading 4 bytes from the I/O ports.
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/// @param port The input port.
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/// @return The read value.
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uint32_t inportl(uint16_t port);
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/// @brief Use this to write to I/O ports to send bytes to devices.
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/// @param port The output port.
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/// @param data The data to write.
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void outportb(uint16_t port, uint8_t data);
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/// @brief Use this to write to I/O ports to send 2 bytes to devices.
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/// @param port The output port.
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/// @param data The data to write.
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void outports(uint16_t port, uint16_t data);
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/// @brief Write to the given port what it is stored inside `data`.
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/// @param port The output port.
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/// @param data The buffer where we have the data.
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/// @param size The dimension of the buffer.
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void outportsm(uint16_t port, uint8_t *data, uint16_t size);
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/// @brief Use this to write to I/O ports to send 4 bytes to devices.
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/// @param port The output port.
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/// @param data The data to write.
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void outportl(uint16_t port, uint32_t data);
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