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/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
#define LPID_DSM_ARG2_ENUM_FUNCTIONS 0
#define LPID_DSM_ARG2_GET_DEVICE_CONSTRAINTS 1
#define LPID_DSM_ARG2_GET_CRASH_DUMP_DEV 2
#define LPID_DSM_ARG2_DISPLAY_OFF_NOTIFY 3
#define LPID_DSM_ARG2_DISPLAY_ON_NOTIFY 4
#define LPID_DSM_ARG2_S0IX_ENTRY 5
#define LPID_DSM_ARG2_S0IX_EXIT 6
External(\_SB.MS0X, MethodObj)
External(\_SB.PCI0.LPCB.EC0.S0IX, MethodObj)
External(\_SB.PCI0.EGPM, MethodObj)
External(\_SB.PCI0.RGPM, MethodObj)
Scope(\_SB)
{
Device(LPID)
{
Name(_ADR, 0x00000000)
Name(_CID, EISAID("PNP0D80"))
Name(UUID, ToUUID("c4eb40a0-6cd2-11e2-bcfd-0800200c9a66"))
Method(_DSM, 4)
{
If(Arg0 == ^UUID) {
/*
* Enum functions
*/
If(Arg2 == LPID_DSM_ARG2_ENUM_FUNCTIONS) {
Return(Buffer(One) {0x60})
}
/*
* Function 1 - Get Device Constraints
*/
If(Arg2 == LPID_DSM_ARG2_GET_DEVICE_CONSTRAINTS) {
Return(Package(5) {0, Ones, Ones, Ones, Ones})
}
/*
* Function 2 - Get Crash Dump Device
*/
If(Arg2 == LPID_DSM_ARG2_GET_CRASH_DUMP_DEV) {
Return(Buffer(One) {0x0})
}
/*
* Function 3 - Display Off Notification
*/
If(Arg2 == LPID_DSM_ARG2_DISPLAY_OFF_NOTIFY) {
}
/*
* Function 4 - Display On Notification
*/
If(Arg2 == LPID_DSM_ARG2_DISPLAY_ON_NOTIFY) {
}
/*
* Function 5 - Low Power S0 Entry Notification
*/
If(Arg2 == LPID_DSM_ARG2_S0IX_ENTRY) {
/* Inform the EC */
If (CondRefOf (\_SB.PCI0.LPCB.EC0.S0IX)) {
\_SB.PCI0.LPCB.EC0.S0IX(1)
}
/* provide board level S0ix hook */
If (CondRefOf (\_SB.MS0X)) {
\_SB.MS0X(1)
}
/*
* Save the current PM bits then
* enable GPIO PM with MISCCFG_ENABLE_GPIO_PM_CONFIG
*/
If (CondRefOf (\_SB.PCI0.EGPM))
{
\_SB.PCI0.EGPM ()
}
}
/*
* Function 6 - Low Power S0 Exit Notification
*/
If(Arg2 == LPID_DSM_ARG2_S0IX_EXIT) {
/* Inform the EC */
If (CondRefOf (\_SB.PCI0.LPCB.EC0.S0IX)) {
\_SB.PCI0.LPCB.EC0.S0IX(0)
}
/* provide board level S0ix hook */
If (CondRefOf (\_SB.MS0X)) {
\_SB.MS0X(0)
}
/* Restore GPIO all Community PM */
If (CondRefOf (\_SB.PCI0.RGPM))
{
\_SB.PCI0.RGPM ()
}
}
}
Return(Buffer(One) {0x00})
} // Method(_DSM)
} // Device (LPID)
} // End Scope(\_SB)
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