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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007-2009 coresystems GmbH
*
* 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.
*/
/* 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)
{
Store (Zero, GP08) // Disable Bluetooth
If (LEqual (Arg0, 3)) {
// NVS has a flag to determine USB policy in S3
If (S3U0) {
Store (One, GP47) // Enable USB0
} Else {
Store (Zero, GP47) // Disable USB0
}
// NVS has a flag to determine USB policy in S3
If (S3U1) {
Store (One, GP56) // Enable USB1
} Else {
Store (Zero, GP56) // Disable USB1
}
}
If (LEqual (Arg0, 5)) {
// NVS has a flag to determine USB policy in S5
If (S5U0) {
Store (One, GP47) // Enable USB0
} Else {
Store (Zero, GP47) // Disable USB0
}
// NVS has a flag to determine USB policy in S5
If (S5U1) {
Store (One, GP56) // Enable USB1
} Else {
Store (Zero, GP56) // Disable USB1
}
}
}
/* The _WAK method is called on system wakeup */
Method(_WAK,1)
{
Return(Package(){0,0})
}
/* CMOS Access */
OperationRegion (CMOS, SystemIO, 0x70, 0x71)
Field (CMOS, ByteAcc, NoLock, Preserve)
{
NVRI, 8,
NVRD, 8,
}
IndexField (NVRI, NVRD, ByteAcc, NoLock, Preserve)
{
Offset (0x32),
US3B, 8, // USB Controller Reset S3 behavior
}
#define USB_RESET_DISABLE_MAGIC 0xdd
/* Disable USB Controller Reset in S3 (defaults to enabled) */
Method (USBR, 0, Serialized)
{
Store (USB_RESET_DISABLE_MAGIC, US3B)
}
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