core/cleanup.c

   1 /* -----------------------------------------------------------------------
   2  *
   3  *   Copyright 2007-2008 H. Peter Anvin - All Rights Reserved
   4  *
   5  *   This program is free software; you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License as published by
   7  *   the Free Software Foundation, Inc., 53 Temple Place Ste 330,
   8  *   Boston MA 02111-1307, USA; either version 2 of the License, or
   9  *   (at your option) any later version; incorporated herein by reference.
  10  *
  11  * -----------------------------------------------------------------------
  12  */
  13 #include <com32.h>
  14 #include <core.h>
  15 #include <syslinux/memscan.h>
  16 #include <syslinux/firmware.h>
  17
  18 extern void comboot_cleanup_api(void);
  19 extern void bios_timer_cleanup(void);
  20
  21 /*
  22  * cleanup.c
  23  *
  24  * Some final tidying before jumping to a kernel or bootsector
  25  */
  26
  27 void bios_cleanup_hardware(void)
  28 {
  29         /*
  30          * TODO
  31          *
  32          * Linux wants the floppy motor shut off before starting the
  33          * kernel, at least bootsect.S seems to imply so.  If we don't
  34          * load the floppy driver, this is *definitely* so!
  35          */
  36         __intcall(0x13, &zero_regs, NULL);
  37
  38         call16(comboot_cleanup_api, &zero_regs, NULL);
  39         call16(bios_timer_cleanup, &zero_regs, NULL);
  40
  41         /* If we enabled serial port interrupts, clean them up now */
  42         sirq_cleanup();
  43 }
  44
  45 /*
  46  * cleanup_hardware:
  47  *
  48  *      Shut down anything transient.
  49  */
  50 __export void cleanup_hardware(void)
  51 {
  52         firmware->cleanup();
  53 }