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/* SPDX-License-Identifier: GPL-2.0-only */
Scope (\_SB.PCI0.LPCB)
{
#include "cmos.asl"
Device (EC)
{
Name (_HID, EisaId ("PNP0C09"))
Name (_UID, 0x01)
Name (_GPE, CONFIG_EC_GPE_SCI)
Name (ECAV, 0x00)
Name (ECTK, 0x01)
Name (B2ST, 0x00)
Name (CFAN, 0x00)
Name (CMDR, 0x00)
Name (DOCK, 0x00)
Name (PLMX, 0x00)
Name (PECH, 0x00)
Name (PECL, 0x00)
Name (PENV, 0x00)
Name (PINV, 0x00)
Name (PPSH, 0x00)
Name (PPSL, 0x00)
Name (PSTP, 0x00)
Name (RPWR, 0x00)
Name (VPWR, 0x00)
Name (WTMS, 0x00)
Name (AWT2, 0x00)
Name (AWT1, 0x00)
Name (AWT0, 0x00)
Name (DLED, 0x00)
Name (SPT2, 0x00)
Name (PB10, 0x00)
Name (IWCW, 0x00)
Name (IWCR, 0x00)
Name (PVOL, 0x00)
Mutex (ECMT, 0x00)
Name (BFFR, ResourceTemplate()
{
IO(Decode16, 0x0062, 0x0062, 0x00, 0x01)
IO(Decode16, 0x0066, 0x0066, 0x00, 0x01)
})
Method (_CRS, 0, Serialized)
{
Return (BFFR)
}
Method (_STA, 0, NotSerialized)
{
\LIDS = 0x03
Return (0x0F)
}
OperationRegion (SIPR, SystemIO, 0xB2, 0x1)
Field (SIPR, ByteAcc, Lock, Preserve) {
SMB2, 8
}
#include "emem.asl"
// ECRD (Embedded Controller Read Method)
//
// Handle all commands sent to EC by BIOS
//
// Arguments:
// Arg0 = Object to Read
//
// Return Value:
// Read Value
//
Method (ECRD, 1, Serialized, 0, IntObj, FieldUnitObj)
{
//
// Check for ECDT support, set ECAV to 1 if ECDT is supported by OS
// Only check once at beginning since ECAV might be clear later in certain conditions
//
If (ECTK) {
If (_REV >= 0x02) {
ECAV = 0x01
}
ECTK = 0x00 // Clear flag for checking once only
}
Local0 = Acquire (ECMT, 1000) // Save Acquired Result
If (Local0 == 0x00) // Check for Mutex Acquisition
{
If (ECAV) {
Local1 = DerefOf (Arg0) // Execute Read from EC
Release (ECMT)
Return (Local1)
} Else {
Release (ECMT)
}
}
Return (0) // Return in case Arg0 doesn't exist
}
// ECWR (Embedded Controller Write Method)
//
// Handle all commands sent to EC by BIOS
//
// Arguments:
// Arg0 = Value to Write
// Arg1 = Object to Write to
//
// Return Value:
// None
//
Method (ECWR, 2, Serialized,,,{IntObj, FieldUnitObj})
{
Local0 = Acquire (ECMT, 1000) // Save Acquired Result
If (Local0 == 0x00) // Check for Mutex Acquisition
{
If (ECAV) {
Arg1 = Arg0 // Execute Write to EC
Local1 = 0x00
While (1) {
If (Arg0 == DerefOf (Arg1)) {
Break
}
Sleep (1)
Arg1 = Arg0
Local1 += 1
If (Local1 == 0x03) {
Break
}
}
}
Release (ECMT)
}
}
#include "ac.asl"
#include "battery.asl"
#include "events.asl"
#include "lid.asl"
Method (_REG, 2, NotSerialized)
{
If ((Arg0 == 0x03) && (Arg1 == 0x01))
{
// Load EC Driver
ECAV = 0x01
// Initialise the Lid State
\LIDS = LSTE
// Initialise the OS State
OSFG = 0x01
// Initialise the Power State
PWRS = (ECRD (RefOf(ECPS)) & 0x01)
// Inform the platform code
PNOT()
}
}
}
}
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