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- /*
- * Copyright (C) 2010 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., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- * You can also choose to distribute this program under the terms of
- * the Unmodified Binary Distribution Licence (as given in the file
- * COPYING.UBDL), provided that you have satisfied its requirements.
- */
-
- FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
- /** @file
- *
- * Standard PC-BIOS reboot mechanism
- *
- */
-
- #include <ipxe/reboot.h>
- #include <realmode.h>
- #include <bios.h>
- #include <ipxe/apm.h>
- #include <ipxe/acpipwr.h>
-
- /**
- * Reboot system
- *
- * @v warm Perform a warm reboot
- */
- static void bios_reboot ( int warm ) {
- uint16_t flag;
-
- /* Configure BIOS for cold/warm reboot */
- flag = ( warm ? BDA_REBOOT_WARM : 0 );
- put_real ( flag, BDA_SEG, BDA_REBOOT );
-
- /* Jump to system reset vector */
- __asm__ __volatile__ ( REAL_CODE ( "ljmp $0xf000, $0xfff0" ) : );
- }
-
- /**
- * Power off system
- *
- * @ret rc Return status code
- */
- static int bios_poweroff ( void ) {
- int rc;
-
- /* Try APM */
- if ( ( rc = apm_poweroff() ) != 0 )
- DBG ( "APM power off failed: %s\n", strerror ( rc ) );
-
- /* Try ACPI */
- if ( ( rc = acpi_poweroff() ) != 0 )
- DBG ( "ACPI power off failed: %s\n", strerror ( rc ) );
-
- return rc;
- }
-
- PROVIDE_REBOOT ( pcbios, reboot, bios_reboot );
- PROVIDE_REBOOT ( pcbios, poweroff, bios_poweroff );
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