// ext2.cpp
// ext2 filesystem driver for HOS
// Author: Josh Holtrop
// Date: 05/10/05
// Modified: 05/10/05

#define _HOS_CPP_ _HOS_CPP_

extern "C" {
#include "display/kout.h"
}

#include "ext2.h"

Ext2fs::Ext2fs(device_t dev)
{
	myDevice = dev;
	if (block_read(DEV_MAJOR(dev), DEV_MINOR(dev), 2, 2, &mySuper) < 1024)
	{
		myError = -1;
		return;
	}
	if (mySuper.s_magic != EXT2_MAGIC)
	{
		myError = -2;
		return;
	}
	myError = 0;
	mySuperDirty = 0;
	kprintf("Device: %d\n", myDevice);
}

Ext2fs::~Ext2fs()
{
	if (mySuperDirty)
		block_write(DEV_MAJOR(myDevice), DEV_MINOR(myDevice), 2, 2, &mySuper);
}