src/interface/pxe/pxe_loader.c

   1 /*
   2  * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 of the
   7  * License, or any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17  */
  18
  19 #include <gpxe/init.h>
  20 #include "pxe.h"
  21 #include "pxe_call.h"
  22
  23 /** @file
  24  *
  25  * PXE UNDI loader
  26  *
  27  */
  28
  29 /* PXENV_UNDI_LOADER
  30  *
  31  */
  32 PXENV_EXIT_t undi_loader ( struct s_UNDI_LOADER *undi_loader ) {
  33
  34         DBG ( "[PXENV_UNDI_LOADER to CS %04x DS %04x]",
  35               undi_loader->UNDI_CS, undi_loader->UNDI_DS );
  36
  37         /* Perform one-time initialisation (e.g. heap) */
  38         initialise();
  39
  40         /* Set up PXE data structures */
  41         pxe_init_structures();
  42
  43         /* Fill in UNDI loader structure */
  44         undi_loader->PXEptr.segment = rm_cs;
  45         undi_loader->PXEptr.offset =
  46                 ( ( unsigned ) & __from_text16 ( ppxe ) );
  47         undi_loader->PXENVptr.segment = rm_cs;
  48         undi_loader->PXENVptr.offset =
  49                 ( ( unsigned ) & __from_text16 ( pxenv ) );
  50
  51         undi_loader->Status = PXENV_STATUS_SUCCESS;
  52         return PXENV_EXIT_SUCCESS;
  53 }