External G2 Bus-based IDE support. More...

#include <arch/types.h>

Functions
int	ide_read (uint32 linear, uint32 numsects, void *bufptr)
	Read sectors from the hard disk via PIO.

int	ide_write (uint32 linear, uint32 numsects, void *bufptr)
	Write sectors from the hard disk via PIO.

uint32	ide_num_sectors (void)
	Retrieve the number of sectors from the hard disk.

int	ide_init (void)
	Initialize Navi IDE.

void	ide_shutdown (void)
	Shutdown Navi IDE.

Detailed Description

External G2 Bus-based IDE support.

This file is involved with accessing an IDE controller that is attached to the G2 Bus expansion port. Exact details of how to build such a device have been posted in various places around the Internet. This driver refers to the device built by Megan as a part of the Navi project.

Author: Megan Potter

Function Documentation

◆ ide_init()

int ide_init ( void )

Initialize Navi IDE.

Returns: 0 on success (no error conditions defined).

◆ ide_num_sectors()

uint32 ide_num_sectors ( void )

Retrieve the number of sectors from the hard disk.

Returns: The total number of linear sectors.

◆ ide_read()

int ide_read	(	uint32	linear,
		uint32	numsects,
		void *	bufptr )

Read sectors from the hard disk via PIO.

Parameters

linear	The address to begin reading from.
numsects	The number of sectors to read.
bufptr	The buffer to read into.

Returns: 0 on success, <0 on error.

◆ ide_shutdown()

void ide_shutdown ( void )

Shutdown Navi IDE.

◆ ide_write()

int ide_write	(	uint32	linear,
		uint32	numsects,
		void *	bufptr )

Write sectors from the hard disk via PIO.