mirror of https://github.com/ipxe/ipxe.git
97 lines
2.6 KiB
C
97 lines
2.6 KiB
C
/*
|
|
* Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of the
|
|
* License, or any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <gpxe/device.h>
|
|
#include <undi.h>
|
|
#include <undinet.h>
|
|
#include <undipreload.h>
|
|
|
|
/** @file
|
|
*
|
|
* "Pure" UNDI driver
|
|
*
|
|
* This is the UNDI driver without explicit support for PCI or any
|
|
* other bus type. It is capable only of using the preloaded UNDI
|
|
* device. It must not be combined in an image with any other
|
|
* drivers.
|
|
*
|
|
* If you want a PXE-loadable image that contains only the UNDI
|
|
* driver, build "bin/undionly.kpxe".
|
|
*
|
|
* If you want any other image format, or any other drivers in
|
|
* addition to the UNDI driver, build e.g. "bin/undi.dsk".
|
|
*/
|
|
|
|
/**
|
|
* Probe UNDI root bus
|
|
*
|
|
* @v rootdev UNDI bus root device
|
|
*
|
|
* Scans the UNDI bus for devices and registers all devices it can
|
|
* find.
|
|
*/
|
|
static int undibus_probe ( struct root_device *rootdev ) {
|
|
int rc;
|
|
|
|
/* Check for a valie preloaded UNDI device */
|
|
if ( ! preloaded_undi.entry.segment ) {
|
|
DBG ( "No preloaded UNDI device found!\n" );
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* Add to device hierarchy */
|
|
preloaded_undi.dev.parent = &rootdev->dev;
|
|
list_add ( &preloaded_undi.dev.siblings, &rootdev->dev.children);
|
|
INIT_LIST_HEAD ( &preloaded_undi.dev.children );
|
|
|
|
/* Create network device */
|
|
if ( ( rc = undinet_probe ( &preloaded_undi ) ) != 0 )
|
|
goto err;
|
|
|
|
return 0;
|
|
|
|
err:
|
|
list_del ( &preloaded_undi.dev.siblings );
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* Remove UNDI root bus
|
|
*
|
|
* @v rootdev UNDI bus root device
|
|
*/
|
|
static void undibus_remove ( struct root_device *rootdev __unused ) {
|
|
undinet_remove ( &preloaded_undi );
|
|
list_del ( &preloaded_undi.dev.siblings );
|
|
}
|
|
|
|
/** UNDI bus root device driver */
|
|
static struct root_driver undi_root_driver = {
|
|
.probe = undibus_probe,
|
|
.remove = undibus_remove,
|
|
};
|
|
|
|
/** UNDI bus root device */
|
|
struct root_device undi_root_device __root_device = {
|
|
.name = "UNDI",
|
|
.driver = &undi_root_driver,
|
|
};
|