SataController

Function Table

Address	Name	Description
	SataGetDeviceCount
	SataGetDevice
	SataIdentifyDevice
	SataModifyDevice
	SataSubmitAsyncCommand
	SataStopDevice
	SataCalculateBestPioMode
	PchGetPchSeries
	S3BootScriptLibInit
	S3BootScriptEventNotify
	S3BootScriptFinalize
	S3ReadyToLockNotify
	S3BootScriptCloseEvent
	S3BootScriptCloseNotify
	SaveBootScriptDataToLockBox
	SmmLockBoxSave
	SmmLockBoxSetAttributes
	SmmLockBoxRestore
	S3BootScriptLibDeinit
	SataComponentNameGetDriverName
	SataComponentNameGetControllerName
	LookupStringTable
EFI_IDE_CONTROLLER_INIT_PROTOCOL	implementation
Allocate	result buffer for caller
ResultBuffer	= AllocatePool (sizeof (EFI_IDE_CHANNEL_INFO));
Query	best PIO mode
MaxMode	= 0;
Mode	valid
Mode	invalid
Check	DMA capability
if	(SataPrivateData->DeviceIdentifyData[Channel][106] & 4) {
Device	supports DMA - calculate best DMA mode
UINT16	DmaMode = 0;
No	DMA
PIO	Mode Calculation
Field	103: IORDY support and mode info
Field103	= IdentifyData->Field103;
No	IORDY - use PIO mode 0-2 only
BestPio	= Field103;
IORDY	supported - determine PIO mode 0-4
Determine	PIO mode from timing
if	(PioModeBits <= 0x78) {
PCH	Series Detection
Check	if device ID falls in SPT range (0x9D00-0x9D3F with mask 0xFF70)
if	(((LpcDeviceId + 24128) & 0xFF70) != 0) {
Check	CNP range
if	((UINT16)(LpcDeviceId + 25280) <= 8) {
Cannon	Point
S3	Boot Script Library
Allocate	EfiReservedMemory for boot script context
Status	= GetPcdDbProtocol ();
Locate	SMM protocol
Status	= gBS->LocateProtocol (&gEfiSmmBase2ProtocolGuid, NULL, &gSmst);
Register	S3 boot script close notification
Status	= gBS->CreateEvent (
Status	= gBS->RegisterProtocolNotify (
S3	Boot Script Event Notify Callbacks
Inside	SMM - check if already saved
if	(gBootScriptContext != NULL && !gBootScriptContext->FlagSaved) {
S3	Boot Script Data save to LockBox
Step	1: Save boot script context to lockbox
Status	= SmmLockBoxSave (&gBootScriptFinalGuid
Step	2: Get memory map
Step	3: Allocate memory ranges structure
PagesAddr	= (EFI_PHYSICAL_ADDRESS)(UINTN)-1;
Count	ranges that are not MMIO
for	(Index = 0; Index < MemoryMapSize / MapDescriptorSize; Index++) {
Allocate	memory ranges buffer
BufferSize	*= MemoryRanges->NumberOfMemoryRanges sizeof (MEMORY_RANGE_ENTRY);**
Step	4: Fill memory ranges
Step	5: Save memory ranges to lockbox
Status	= SmmLockBoxSave (&gBootScriptFinalGuid, MemoryRanges
SMM	LockBox Wrappers
ReturnStatus	(UINT32 )(CommBuffer + 24) = 1; // Function: Save
HeaderSize	CopyMem (CommBuffer + 40, Guid, 16);
Close	DxeSmmReadyToLock event
if	(gDxeSmmReadyToLockEvent != NULL) {
Unregister	notifies
if	(gSmst != NULL) {
Free	boot script buffer
if	(gBootScriptAllocated && gBootScriptContext != NULL) {
Free	SMM allocated buffer
if	(gSmstAllocated && gSmst != NULL) {
Component	Name Protocol
Verify	the controller is managed by this driver
EFI_STATUS	Status;
Not	PCI IO - return unsupported
if	(Status != EFI_UNSUPPORTED) {
String	Table Lookup
RFC	4646 language tags: compare 3-byte prefix
if	*(ReadUint24 ((UINT32 )Lang) == ReadUint24 ((UINT32* )SupportedLanguages)) {**
ISO	639-2: split by ';', compare each
Skip	to next language token
Lang	+= TokenLen;
Compare	entry token with language
CHAR8	StrTok = Entry;
Skip	semicolons

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