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/** @file
Power resource and wake capability for USB ports hosting WWAN module
Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
// USB Port 3 power resource
PowerResource(PX03, 0, 0) {
Name(WOFF, 0) // Last OFF Time stamp (WOFF): The time stamp of the last power resource _OFF method evaluation
Method(_STA)
{
If (LEqual(\_SB.GGOV(NW_GPIO_78), 1)) {
Return(0x01)
} Else {
Return(0x00)
}
}
Method(_ON, 0) /// _ON Method
{
If (LNotEqual(^WOFF, Zero)) {
Divide(Subtract(Timer(), ^WOFF), 10000, , Local0) // Store Elapsed time in ms, ignore remainder
If (LLess(Local0,100)) { // If Elapsed time is less than 100ms
Sleep(Subtract(100,Local0)) // Sleep for the remaining time
}
}
\_SB.SGOV(NW_GPIO_78,1) // set power pin to high
\_SB.SGOV(NW_GPIO_117,1) // set reset pin to high
}
Method(_OFF, 0) /// _OFF Method
{
\_SB.SGOV(NW_GPIO_117,0) // set reset pin to low
\_SB.SGOV(NW_GPIO_78,0) // set power pin to low
Store(Timer(), ^WOFF) // Start OFF timer here.
}
} // End PX03
Name(_PR0,Package(){PX03}) // Power Resource required to support D0
Name(_PR2,Package(){PX03}) // Power Resource required to support D2
Name(_PR3,Package(){PX03}) // Power Resource required to support D3
//
// WWAN Modem device with the same power resource as its composite parent device
//
Device (MODM) {
Name(_ADR, 0x3)
Name(_PR0,Package(){PX03}) // Power Resource required to support D0
Name(_PR2,Package(){PX03}) // Power Resource required to support D2
Name(_PR3,Package(){PX03}) // Power Resource required to support D3
}
//
// _SxW, in Sx, the lowest power state supported to wake up the system
// _SxD, in Sx, the highest power state supported by the device
// If OSPM supports _PR3 (_OSC, Arg3[2]), 3 represents D3hot; 4 represents D3cold, otherwise 3 represents D3.
//
Method(_S0W, 0, Serialized)
{
Return(0x3) // return 3 (D3hot)
}
Method (_S3D, 0, Serialized)
{
Return (0x2)
}
Method (_S3W, 0, Serialized)
{
Return (0x3)
}
Method (_S4D, 0, Serialized)
{
Return (0x2)
}
Method (_S4W, 0, Serialized)
{
Return (0x3)
}
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