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DefinitionBlock(
"tblm0037.aml", // Output filename
"DSDT", // Signature
0x02, // DSDT Revision
"Intel", // OEMID
"Many", // TABLE ID
0x00000001 // OEM Revision
) {
/*
* ACPICA API Test Suite.
* Support Table Management test 0037.
* Implements the following functional ASL Methods:
* INIT - preparing for emulation of a initialy loaded SSDT in an OpRegion,
* LD - loading the next modified SSDT by Load ASL operator,
*/
Name(BUF0, Buffer() {
0x53,0x53,0x44,0x54,0x30,0x00,0x00,0x00, /* 00000000 "SSDT0..." */
0x01,0xB8,0x49,0x6E,0x74,0x65,0x6C,0x00, /* 00000008 "..Intel." */
0x4D,0x61,0x6E,0x79,0x00,0x00,0x00,0x00, /* 00000010 "Many...." */
0x01,0x00,0x00,0x00,0x49,0x4E,0x54,0x4C, /* 00000018 "....INTL" */
0x24,0x04,0x03,0x20,0x14,0x0B,0x53,0x53, /* 00000020 "$.. ..SS" */
0x30,0x30,0x00,0x70,0x0A,0x04,0x60,0xA4, /* 00000028 "00.p..`." */
})
Name (HI0M, 100)
Name (HI0P, Package(HI0M){})
Name (HI0N, 0)
Name (INIF, 0x00)
OperationRegion (IST0, SystemMemory, 0, 0x1FA)
Field(IST0, ByteAcc, NoLock, Preserve) {
RFU0, 0xFD0,
}
Field(IST0, ByteAcc, NoLock, Preserve) {
SIG, 32,
LENG, 32,
REV, 8,
SUM, 8,
OID, 48,
OTID, 64,
OREV, 32,
CID, 32,
CREV, 32,
Offset(38),
SSNM, 32
}
// components/utilities/utmisc.c AcpiUtGenerateChecksum() analog
Method(CHSM, 2) // buf, len
{
Name(lpN0, 0)
Name(lpC0, 0)
Store(0, Local0) // sum
Store(arg1, lpN0)
Store(0, lpC0)
While(lpN0) {
Store(DeRefOf(Index(arg0, lpC0)), Local1)
Add(Local0, Local1, Local0)
Mod(Local0, 0x100, Local0)
Decrement(lpN0)
Increment(lpC0)
}
Subtract(0, Local0, Local0)
Mod(Local0, 0x100, Local0)
Store("checksum", Debug)
Store(Local0, Debug)
return (Local0)
}
Method(INIT)
{
if (INIF) {
Store("INIT: OpRegion has been initialized previously", Debug)
Return (1)
}
Store(BUF0, RFU0)
Store(1, INIF)
Store("INIT: OpRegion initialized with SSDT", Debug)
Return (0)
}
Method(LD)
{
Name(HI0, 0)
if (LNot(LLess(Add(HI0N, 1), HI0M))) {
Store("LD: too many tables loaded", Debug)
Return (1)
}
Increment(HI0N)
// Modify Revision field of SSDT
Store(Add(CREV, 1), CREV)
// Modify SSNM Object Name
Divide(HI0N, 10, Local0, Local1)
ShiftLeft(Local1, 16, Local1)
ShiftLeft(Local0, 24, Local0)
Add(Local0, Local1, Local0)
Add(Local0, 0x30305353, Local0)
Store(Local0, SSNM)
Store(SSNM, Debug)
// Recalculate and save CheckSum
Store(RFU0, Local0)
Store(Add(SUM, CHSM(Local0, SizeOf (Local0))), SUM)
// Load(IST0, HI0)
Load(RFU0, HI0)
Store("LD: SSDT Loaded", Debug)
// Store(HI0, Index(HI0P, HI0N))
Return (0)
}
Method(UNLD)
{
Name(HI0, 0)
if (LEqual(HI0N, 0)) {
Store("UNLD: there are no SSDT loaded", Debug)
Return (1)
}
Decrement(HI0N)
Store(DerefOf(Index(HI0P, HI0N)), HI0)
UnLoad(HI0)
Store("UNLD: SSDT UnLoaded", Debug)
Return (0)
}
Method(MAIN)
{
INIT()
LD()
LD()
// UNLD()
// UNLD()
}
}
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