MaxOS::hardwarecommunication::Port32Bit Class Reference

Handles 32 bit ports. More...

#include <port.h>

Inheritance diagram for MaxOS::hardwarecommunication::Port32Bit:

Public Member Functions
	Port32Bit (uint16_t port_number)
	Construct a new Port object for ports handling 32 bit read/writes.
virtual void	write (uint32_t data)
	write a double word to the port (32Bit)
virtual uint32_t	read ()
	read a double word from the port (32Bit)

Additional Inherited Members
Protected Member Functions inherited from MaxOS::hardwarecommunication::Port
	Port (uint16_t port_number)
	Construct a new Port object.
Protected Attributes inherited from MaxOS::hardwarecommunication::Port
uint16_t	m_port_number
	The port to write to / read from.

Detailed Description

Handles 32 bit ports.

Definition at line 70 of file port.h.

Constructor & Destructor Documentation

Port32Bit()

Port32Bit::Port32Bit ( uint16_t  port_number )

explicit

Construct a new Port object for ports handling 32 bit read/writes.

Parameters

port_number

The IO port number

Definition at line 117 of file port.cpp.

: Port(port_number) {
}

Member Function Documentation

read()

uint32_t Port32Bit::read ( )

virtual

read a double word from the port (32Bit)

Returns

the double word read

Definition at line 138 of file port.cpp.

                         {
 
    uint32_t result;
    asm volatile("inl %1, %0" : "=a" (result) : "Nd" (m_port_number));
    return result;
}

References MaxOS::hardwarecommunication::Port::m_port_number.

write()

void Port32Bit::write ( uint32_t  data )

virtual

write a double word to the port (32Bit)

Parameters

data	the double word to write

Definition at line 128 of file port.cpp.

                                   {
 
    asm volatile("outl %0, %1" : : "a" (data), "Nd" (m_port_number));
}

References MaxOS::hardwarecommunication::Port::m_port_number.

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The documentation for this class was generated from the following files:

• /home/runner/work/MaxOS/MaxOS/kernel/include/hardwarecommunication/port.h
• /home/runner/work/MaxOS/MaxOS/kernel/src/hardwarecommunication/port.cpp