//-------------------------------------------------------------------
//	mac.c		
//
//	This module creates a pseudo-file named '/proc/mac' which
//	lets applications view the RealTek adapter's MAC address. 
//
//	NOTE: Written and tested for Linux kernel version 2.6.10.
//
//	programmer: ALLAN CRUSE
//	written on: 17 APR 2005
//-------------------------------------------------------------------

#include <linux/module.h>	// for init_module() 
#include <linux/proc_fs.h>	// for create_proc_info_entry() 
#include <linux/pci.h>		// for pci_find_device()

#define VENDOR_ID	0x10EC
#define DEVICE_ID	0x8139

char modname[] = "mac";
int iobase;

int my_get_info( char *buf, char **start, off_t off, int count )
{
	int	i, len = 0;

	len += sprintf( buf+len, "\nRealTek RTL-8139 Network Controller " );
	len += sprintf( buf+len, "\nHardware Address: " );
	for (i = 0; i < 6; i++)
		{
		char	ch = ( i == 5 ) ? ' ' : ':';
		len += sprintf( buf+len, "%02X%c", inb( iobase+i ), ch );
		} 
	len += sprintf( buf+len, "\nModule Author: Allan B. Cruse\n\n" );
	return	len;
}

int init_module( void )
{
	struct pci_dev	*devp;

	printk( "<1>\nInstalling \'%s\' module\n", modname );

	devp = pci_find_device( VENDOR_ID, DEVICE_ID, NULL );
	if ( !devp ) return -ENODEV;
	iobase = pci_resource_start( devp, 0 ); 

	create_proc_info_entry( modname, 0, NULL, my_get_info );
	return	0;  //SUCCESS
}

void cleanup_module( void )
{
	remove_proc_entry( modname, NULL );
	printk( "<1>Removing \'%s\' module\n", modname );
}

MODULE_LICENSE("GPL");