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/** @file
*
* PXE UNDI loader
*
*/
/*
* Copyright (C) 2004 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.
*/
#warning "Currently broken"
#if 0
#include "pxe.h"
/* PXENV_UNDI_LOADER
*
* Status: working
*
* NOTE: This is not a genuine PXE API call; the loader has a separate
* entry point. However, to simplify the mapping of the PXE API to
* the internal Etherboot API, both are directed through the same
* interface.
*/
PXENV_EXIT_t undi_loader ( struct s_UNDI_LOADER *undi_loader ) {
uint32_t loader_phys = virt_to_phys ( undi_loader );
DBG ( "PXENV_UNDI_LOADER" );
/* Set UNDI DS as our real-mode stack */
use_undi_ds_for_rm_stack ( undi_loader->undi_ds );
/* FIXME: These lines are borrowed from main.c. There should
* probably be a single initialise() function that does all
* this, but it's currently split interestingly between main()
* and main_loop()...
*/
/* CHECKME: Our init functions have probably already been
called by the ROM prefix's call to setup(), haven't
they? */
/* We have relocated; the loader pointer is now invalid */
undi_loader = phys_to_virt ( loader_phys );
/* Install PXE stack to area specified by NBP */
install_pxe_stack ( VIRTUAL ( undi_loader->undi_cs, 0 ) );
/* Call pxenv_start_undi to set parameters. Why the hell PXE
* requires these parameters to be provided twice is beyond
* the wit of any sane man. Don't worry if it fails; the NBP
* should call PXENV_START_UNDI separately anyway.
*/
pxenv_start_undi ( &undi_loader->u.start_undi );
/* Unhook stack; the loader is not meant to hook int 1a etc,
* but the call the pxenv_start_undi will cause it to happen.
*/
/* FIXME: can't use ENSURE_CAN_UNLOAD() thanks to newer gcc's
* barfing on unnamed struct/unions. */
/* ENSURE_CAN_UNLOAD ( undi_loader ); */
/* Fill in addresses of !PXE and PXENV+ structures */
PTR_TO_SEGOFF16 ( &pxe_stack->pxe, undi_loader->pxe_ptr );
PTR_TO_SEGOFF16 ( &pxe_stack->pxenv, undi_loader->pxenv_ptr );
undi_loader->u.Status = PXENV_STATUS_SUCCESS;
return PXENV_EXIT_SUCCESS;
}
#endif
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