/* * This file is part of the coreboot project. * * Copyright (C) 2007-2009 coresystems GmbH * Copyright (C) 2011-2012 The Chromium OS Authors. All rights reserved. * * 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; version 2 of the License. * * 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. */ /* The APM port can be used for generating software SMIs */ OperationRegion (APMP, SystemIO, 0xb2, 2) Field (APMP, ByteAcc, NoLock, Preserve) { APMC, 8, // APM command APMS, 8 // APM status } /* Port 80 POST */ OperationRegion (POST, SystemIO, 0x80, 1) Field (POST, ByteAcc, Lock, Preserve) { DBG0, 8 } /* SMI I/O Trap */ Method(TRAP, 1, Serialized) { Store (Arg0, SMIF) // SMI Function Store (0, TRP0) // Generate trap Return (SMIF) // Return value of SMI handler } /* The _PIC method is called by the OS to choose between interrupt * routing via the i8259 interrupt controller or the APIC. * * _PIC is called with a parameter of 0 for i8259 configuration and * with a parameter of 1 for Local Apic/IOAPIC configuration. */ Method(_PIC, 1) { // Remember the OS' IRQ routing choice. Store(Arg0, PICM) } /* The _PTS method (Prepare To Sleep) is called before the OS is * entering a sleep state. The sleep state number is passed in Arg0 */ Method(_PTS,1) { } /* The _WAK method is called on system wakeup */ Method(_WAK,1) { Return(Package(){0,0}) }