diff options
Diffstat (limited to 'qemu/roms/ipxe/src/arch/i386/interface/pcbios/apm.c')
| -rw-r--r-- | qemu/roms/ipxe/src/arch/i386/interface/pcbios/apm.c | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/apm.c b/qemu/roms/ipxe/src/arch/i386/interface/pcbios/apm.c deleted file mode 100644 index 50b19cb81..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/apm.c +++ /dev/null @@ -1,112 +0,0 @@ -/* - * Copyright (C) 2013 Marin Hannache <ipxe@mareo.fr>. - * - * 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 - * - * Advanced Power Management - * - */ - -#include <errno.h> -#include <realmode.h> -#include <ipxe/reboot.h> - -/** - * Power off the computer using APM - * - * @ret rc Return status code - */ -static int apm_poweroff ( void ) { - uint16_t apm_version; - uint16_t apm_signature; - uint16_t apm_flags; - uint16_t carry; - - /* APM check */ - __asm__ __volatile__ ( REAL_CODE ( "int $0x15\n\t" - "adc %%edx,0\n\t" ) - : "=a" ( apm_version ), "=b" ( apm_signature ), - "=c" ( apm_flags ), "=d" ( carry ) - : "a" ( 0x5300 ), "b" ( 0x0000 ), - "d" ( 0x0000 ) ); - if ( carry ) { - DBG ( "APM not present\n" ); - return -ENOTSUP; - } - if ( apm_signature != 0x504d ) { /* signature 'PM' */ - DBG ( "APM not present\n" ); - return -ENOTSUP; - } - if ( apm_version < 0x0101 ) { /* Need version 1.1+ */ - DBG ( "APM 1.1+ not supported\n" ); - return -ENOTSUP; - } - if ( ( apm_flags & 0x8 ) == 0x8 ) { - DBG ( "APM power management disabled\n" ); - return -EPERM; - } - DBG2 ( "APM check completed\n" ); - - /* APM initialisation */ - __asm__ __volatile__ ( REAL_CODE ( "int $0x15\n\t" - "adc %%edx,0\n\t" ) - : "=d" ( carry ) - : "a" ( 0x5301 ), "b" ( 0x0000 ), - "d" ( 0x0000 ) ); - if ( carry ) { - DBG ( "APM initialisation failed\n" ); - return -EIO; - } - DBG2 ( "APM initialisation completed\n" ); - - /* Set APM driver version */ - __asm__ __volatile__ ( REAL_CODE ( "int $0x15\n\t" - "adc %%edx,0\n\t" ) - : "=d" ( carry ) - : "a" ( 0x530e ), "b" ( 0x0000 ), - "c" ( 0x0101 ), "d" ( 0x0000 ) ); - if ( carry ) { - DBG ( "APM setting driver version failed\n" ); - return -EIO; - } - DBG2 ( "APM driver version set\n" ); - - /* Setting power state to off */ - __asm__ __volatile__ ( REAL_CODE ( "int $0x15\n\t" - "adc %%edx,0\n\t" ) - : "=d" ( carry ) - : "a" ( 0x5307 ), "b" ( 0x0001 ), - "c" ( 0x0003 ), "d" ( 0x0000) ); - if ( carry ) { - DBG ( "APM setting power state failed\n" ); - return -ENOTTY; - } - - /* Should never happen */ - return -ECANCELED; -} - -PROVIDE_REBOOT ( pcbios, poweroff, apm_poweroff ); |