Harddisk Class Reference

Simpler ATA Treiber, der 28bit Adressierung und polling über IOPorts verwendet. More...

#include <fs/harddisk.h>

Inheritance diagram for Harddisk:

Collaboration diagram for Harddisk:

Public Member Functions
	Harddisk (Drive drive=primary_bus_master)
Block	fix (uint64_t block_number)
void	unfix (Block *block)
int	sync ()
int	sync (Block *block)
Public Member Functions inherited from BlockDevice
virtual Block	fix (uint64_t block_number)=0
virtual void	unfix (Block *block)=0
virtual int	sync (Block *block)=0
virtual int	sync ()=0
bool	set_blocksize (unsigned int blocksize)
template<typename T >
T	divide_by_blocksize (T val) const
template<typename T >
T	modulo_blocksize (T val) const

Public Attributes
bool	attached
uint32_t	max_lba
Public Attributes inherited from BlockDevice
unsigned int	blocksize
unsigned int	blocksize_bits

Detailed Description

Simpler ATA Treiber, der 28bit Adressierung und polling über IOPorts verwendet.

Hinweis für block_number und sector: Die block_number von fix() verwendet stets die Blockgröße, die über set_blocksize festgelegt wurde. Intern entspricht ein Sektor 512 byte, da die IOPorts diese Adressierung verwenden. block_number wird in read_sectors() oder write_sectors() per convert_lba() abhängig von this->blocksize umgewandelt.

Siehe https://wiki.osdev.org/ATA_PIO_Mode

Member Function Documentation

fix()

Block Harddisk::fix ( uint64_t  block_number )

virtual

Implements BlockDevice.

unfix()

void Harddisk::unfix ( Block *  block )

virtual

Implements BlockDevice.

sync() [1/2]

int Harddisk::sync ( )

virtual

Implements BlockDevice.

sync() [2/2]

int Harddisk::sync ( Block *  block )

virtual

Implements BlockDevice.

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

• fs/harddisk.h
• fs/harddisk.cc