mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-11-14 10:05:43 +01:00
530 lines
12 KiB
C
530 lines
12 KiB
C
/*
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* SMCHelper.c
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*
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* Created by Slice on 03.10.2016.
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*
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*/
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#include <Library/BaseLib.h>
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#include <Library/UefiLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiRuntimeServicesTableLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/DebugLib.h>
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#include <Library/PrintLib.h>
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#include <Library/MemLogLib.h>
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#include <Protocol/AppleSMC.h>
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// DBG_TO: 0=no debug, 1=serial, 2=console 3=log
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// serial requires
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// [PcdsFixedAtBuild]
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// gEfiMdePkgTokenSpaceGuid.PcdDebugPropertyMask|0x07
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// gEfiMdePkgTokenSpaceGuid.PcdDebugPrintErrorLevel|0xFFFFFFFF
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// in package DSC file
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#define DBG_SMC 0
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#if DBG_SMC == 3
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#define DBG(...) MemLog(FALSE, 0, __VA_ARGS__)
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#elif DBG_SMC == 2
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#define DBG(...) AsciiPrint(__VA_ARGS__)
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#elif DBG_SMC == 1
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#define DBG(...) DebugPrint(1, __VA_ARGS__)
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#else
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#define DBG(...)
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#endif
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#define APPLE_SMC_SIGNATURE SIGNATURE_64('A','P','P','L','E','S','M','C')
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#define NON_APPLE_SMC_SIGNATURE SIGNATURE_64('S','M','C','H','E','L','P','E')
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EFI_HANDLE mHandle = NULL;
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//EFI_BOOT_SERVICES* gBS;
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extern EFI_GUID gEfiAppleBootGuid;
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typedef struct _SMC_STACK SMC_STACK;
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struct _SMC_STACK {
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SMC_STACK *Next;
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SMC_KEY Id;
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SMC_KEY_TYPE Type;
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SMC_DATA_SIZE DataLen;
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SMC_KEY_ATTRIBUTES Attributes;
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SMC_DATA *Data;
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};
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SMC_STACK *SmcStack = NULL;
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CHAR8 *StringId(UINT32 DataId)
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{
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CHAR8 *Str;
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Str = AllocatePool(5);
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Str[4] = '\0';
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Str[3] = DataId & 0xFF;
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Str[2] = (DataId >> 8) & 0xFF;
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Str[1] = (DataId >> 16) & 0xFF;
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Str[0] = (DataId >> 24) & 0xFF;
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return Str;
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}
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/*
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EFI_STATUS EFIAPI
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ReadData (IN APPLE_SMC_PROTOCOL* This, IN UINT32 DataId, IN UINT32 DataLength, IN VOID* DataBuffer)
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{
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SMC_STACK *TmpStack = SmcStack;
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INTN Len;
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CHAR8 *Str = StringId(DataId);
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DBG("asked for SMC=%x (%a) len=%d\n", DataId, Str, DataLength);
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FreePool(Str);
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while (TmpStack) {
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if (TmpStack->Id == DataId) {
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Len = MIN(TmpStack->DataLen, DataLength);
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CopyMem(DataBuffer, TmpStack->Data, Len);
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return EFI_SUCCESS;
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} else {
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TmpStack = TmpStack->Next;
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}
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}
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return EFI_NOT_FOUND;
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}
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EFI_STATUS EFIAPI
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WriteData (IN APPLE_SMC_PROTOCOL* This, IN UINT32 DataId, IN UINT32 DataLength, IN VOID* DataBuffer)
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{
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SMC_STACK *TmpStack = SmcStack;
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INTN Len;
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//First find existing key
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while (TmpStack) {
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if (TmpStack->Id == DataId) {
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Len = MIN(TmpStack->DataLen, DataLength);
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CopyMem(TmpStack->Data, DataBuffer, Len);
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return EFI_SUCCESS;
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} else {
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TmpStack = TmpStack->Next;
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}
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}
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//if not found then create new
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TmpStack = AllocatePool(sizeof(SMC_STACK));
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TmpStack->Next = SmcStack;
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TmpStack->Id = DataId;
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TmpStack->DataLen = DataLength;
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TmpStack->Data = AllocateCopyPool(DataLength, DataBuffer);
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SmcStack = TmpStack;
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return EFI_SUCCESS;
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}
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EFI_STATUS EFIAPI
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DumpData (IN APPLE_SMC_PROTOCOL* This)
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{
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INTN Index;
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SMC_STACK *TmpStack = SmcStack;
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while (TmpStack) {
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CHAR8 *Str = StringId(TmpStack->Id);
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DBG("found SMC=%x (%a) len=%d data:", TmpStack->Id, Str, TmpStack->DataLen);
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for (Index = 0; Index < TmpStack->DataLen; Index++) {
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DBG("%02x ", *((UINT8*)(TmpStack->Data) + Index));
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}
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DBG("\n");
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FreePool(Str);
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TmpStack = TmpStack->Next;
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}
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return EFI_SUCCESS;
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}
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APPLE_SMC_PROTOCOL SMCHelperProtocol = {
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APPLE_SMC_SIGNATURE,
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ReadData,
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WriteData,
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DumpData,
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};
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*/
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// *************************************************************
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// and then we switch to full protocol APPLE_SMC_IO_PROTOCOL
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EFI_STATUS EFIAPI
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SmcReadValueImpl (IN APPLE_SMC_IO_PROTOCOL *This,
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IN SMC_KEY Key,
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IN SMC_DATA_SIZE Size,
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OUT SMC_DATA *Value
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)
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{
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SMC_STACK *TmpStack = SmcStack;
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INTN Len;
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CHAR8 *Str;
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if (!Value || !Size) {
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return EFI_BUFFER_TOO_SMALL;
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}
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Str = StringId(Key);
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DBG("asked for SMC=%x (%a) len=%d\n", Key, Str, Size);
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FreePool(Str);
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while (TmpStack) {
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if (TmpStack->Id == Key) {
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Len = MIN(TmpStack->DataLen, Size);
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CopyMem(Value, TmpStack->Data, Len);
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return EFI_SUCCESS;
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} else {
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TmpStack = TmpStack->Next;
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}
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}
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return EFI_NOT_FOUND;
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}
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//fakesmc-key-CLKT-ui32: Size = 4, Data: 00 00 8C BE
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EFI_STATUS EFIAPI SetNvramForTheKey(
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IN SMC_KEY Key,
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IN SMC_KEY_TYPE Type,
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IN SMC_DATA_SIZE Size,
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IN SMC_DATA *Value
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)
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{
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EFI_STATUS Status;
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CHAR16 *Name = AllocateCopyPool(44, L"fakesmc-key-CLKT-ui32");
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Name[12] = (Key >> 24) & 0xFF;
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Name[13] = (Key >> 16) & 0xFF;
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Name[14] = (Key >> 8) & 0xFF;
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Name[15] = (Key >> 0) & 0xFF;
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Name[17] = (Type >> 24) & 0xFF;
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Name[18] = (Type >> 16) & 0xFF;
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Name[19] = (Type >> 8) & 0xFF;
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Name[20] = (Type >> 0) & 0xFF;
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if (Name[20] == 0x20) {
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Name[20] = 0;
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}
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Status = gRT->SetVariable(Name, &gEfiAppleBootGuid,
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EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
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Size, (UINT8 *)Value);
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DBG("NVRAM Variable %s set\n", Name);
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FreePool(Name);
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return Status;
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}
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EFI_STATUS EFIAPI
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SmcWriteValueImpl (IN APPLE_SMC_IO_PROTOCOL *This,
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IN SMC_KEY Key,
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IN SMC_DATA_SIZE Size,
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OUT SMC_DATA *Value
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)
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{ //IN UINT32 DataId, IN UINT32 DataLength, IN VOID* DataBuffer
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SMC_STACK *TmpStack = SmcStack;
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UINTN Len;
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//First find existing key
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while (TmpStack) {
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if (TmpStack->Id == Key) {
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Len = MIN(TmpStack->DataLen, Size);
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CopyMem(TmpStack->Data, Value, Len);
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SetNvramForTheKey(Key, TmpStack->Type, Size, Value);
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return EFI_SUCCESS;
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} else {
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TmpStack = TmpStack->Next;
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}
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}
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//if not found then create new. Not recommended!
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TmpStack = AllocatePool(sizeof(SMC_STACK));
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TmpStack->Next = SmcStack;
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TmpStack->Id = Key;
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TmpStack->DataLen = Size;
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TmpStack->Attributes = SMC_KEY_ATTRIBUTE_WRITE | SMC_KEY_ATTRIBUTE_READ;
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TmpStack->Data = AllocateCopyPool(Size, Value);
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TmpStack->Type = SmcKeyTypeFlag;
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SmcStack = TmpStack;
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return EFI_SUCCESS;
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}
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// SmcIoSmcGetKeyCountImpl
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EFI_STATUS
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EFIAPI
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SmcGetKeyCountImpl (IN APPLE_SMC_IO_PROTOCOL *This,
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OUT SMC_DATA *Count
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)
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{
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UINT32 Index = 0;
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SMC_DATA *Big = Count;
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SMC_STACK *TmpStack = SmcStack;
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if (!Count) {
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return EFI_INVALID_PARAMETER;
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}
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while (TmpStack) {
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Index++;
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TmpStack = TmpStack->Next;
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}
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//take into account BigEndian
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*Big++ = (SMC_DATA)(Index >> 24);
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*Big++ = (SMC_DATA)(Index >> 16);
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*Big++ = (SMC_DATA)(Index >> 8);
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*Big++ = (SMC_DATA)Index;
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return EFI_SUCCESS;
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}
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EFI_STATUS
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EFIAPI
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SmcMakeKeyImpl (IN APPLE_SMC_IO_PROTOCOL *This,
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IN CHAR8 *Name,
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OUT SMC_KEY *Key
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)
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{
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if (!Key || !Name) {
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return EFI_INVALID_PARAMETER;
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}
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*Key = SMC_MAKE_IDENTIFIER(Name[0], Name[1], Name[2], Name[3]);
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return EFI_SUCCESS;
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}
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EFI_STATUS
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EFIAPI
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SmcAddKeyImpl (IN APPLE_SMC_IO_PROTOCOL *This,
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IN SMC_KEY Key,
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IN SMC_DATA_SIZE Size,
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IN SMC_KEY_TYPE Type,
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IN SMC_KEY_ATTRIBUTES Attributes
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)
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{
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SMC_STACK *TmpStack;
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TmpStack = AllocatePool(sizeof(SMC_STACK));
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TmpStack->Next = SmcStack;
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TmpStack->Id = Key;
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TmpStack->DataLen = Size;
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TmpStack->Attributes = Attributes;
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TmpStack->Data = AllocatePool(Size);
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TmpStack->Type = Type;
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SmcStack = TmpStack;
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return EFI_SUCCESS;
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}
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EFI_STATUS
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EFIAPI
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SmcGetKeyFromIndexImpl(IN APPLE_SMC_IO_PROTOCOL *This,
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IN SMC_INDEX Index,
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OUT SMC_KEY *Key
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)
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{
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UINT32 Num = 0;
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SMC_STACK *TmpStack = SmcStack;
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if (!Key) {
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return EFI_INVALID_PARAMETER;
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}
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while (TmpStack) {
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if (Num == Index) {
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*Key = TmpStack->Id;
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return EFI_SUCCESS;
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}
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Num++;
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TmpStack = TmpStack->Next;
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}
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return EFI_NOT_FOUND;
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}
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EFI_STATUS
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EFIAPI
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SmcGetKeyInfoImpl (IN APPLE_SMC_IO_PROTOCOL *This,
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IN SMC_KEY Key,
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OUT SMC_DATA_SIZE *Size,
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OUT SMC_KEY_TYPE *Type,
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OUT SMC_KEY_ATTRIBUTES *Attributes
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)
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{
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UINT32 Num = 0;
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SMC_STACK *TmpStack = SmcStack;
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if (!Size || !Type || !Attributes) {
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return EFI_INVALID_PARAMETER;
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}
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while (TmpStack) {
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if (Key == TmpStack->Id) {
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*Size = TmpStack->DataLen;
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*Type = TmpStack->Type;
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*Attributes = TmpStack->Attributes;
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return EFI_SUCCESS;
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}
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Num++;
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TmpStack = TmpStack->Next;
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}
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return EFI_NOT_FOUND;
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}
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EFI_STATUS
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EFIAPI
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SmcResetImpl (IN APPLE_SMC_IO_PROTOCOL *This,
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IN UINT32 Mode
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)
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{
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SMC_STACK *TmpStack = SmcStack;
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if (Mode) {
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while (TmpStack) {
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FreePool(TmpStack->Data);
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SmcStack = TmpStack->Next;
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FreePool(TmpStack);
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TmpStack = SmcStack;
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}
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}
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return EFI_SUCCESS;
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}
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EFI_STATUS
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EFIAPI
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SmcFlashTypeImpl(IN APPLE_SMC_IO_PROTOCOL *This,
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IN UINT32 Type
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)
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{
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return EFI_SUCCESS; //EFI_NOT_IMPLEMENTED;
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}
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EFI_STATUS
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EFIAPI
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SmcFlashWriteImpl (
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IN APPLE_SMC_IO_PROTOCOL *This,
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IN UINT32 Unknown,
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IN UINT32 Size,
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IN SMC_DATA *Data
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)
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{
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return EFI_SUCCESS; //EFI_NOT_IMPLEMENTED;
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}
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EFI_STATUS
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EFIAPI
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SmcFlashAuthImpl (
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IN APPLE_SMC_IO_PROTOCOL *This,
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IN UINT32 Size,
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IN SMC_DATA *Data
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)
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{
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return EFI_SUCCESS; //EFI_NOT_IMPLEMENTED;
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}
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EFI_STATUS
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EFIAPI
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SmcUnsupportedImpl (IN APPLE_SMC_IO_PROTOCOL *This
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)
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{
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return EFI_UNSUPPORTED;
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}
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EFI_STATUS
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EFIAPI
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SmcUnknown1Impl (IN APPLE_SMC_STATE_PROTOCOL *This
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)
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{
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return EFI_SUCCESS;
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}
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EFI_STATUS
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EFIAPI
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SmcUnknown2Impl (IN APPLE_SMC_STATE_PROTOCOL *This,
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IN UINTN Ukn1,
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IN UINTN Ukn2
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)
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{
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return EFI_SUCCESS;
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}
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EFI_STATUS
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EFIAPI
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SmcUnknown3Impl (IN APPLE_SMC_STATE_PROTOCOL *This,
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IN UINTN Ukn1,
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IN UINTN Ukn2
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)
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{
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return EFI_SUCCESS;
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}
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EFI_STATUS
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EFIAPI
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SmcUnknown4Impl (IN APPLE_SMC_STATE_PROTOCOL *This,
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OUT UINTN *Ukn1
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)
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{
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if (Ukn1) {
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*Ukn1 = 0;
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}
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return EFI_SUCCESS;
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}
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EFI_STATUS
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EFIAPI
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SmcUnknown5Impl (IN APPLE_SMC_STATE_PROTOCOL *This,
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IN UINTN Ukn1
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)
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{
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return EFI_SUCCESS;
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}
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// gAppleSmcIoProtocolTemplate
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APPLE_SMC_IO_PROTOCOL SMCHelperProtocol = {
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NON_APPLE_SMC_SIGNATURE, //APPLE_SMC_IO_PROTOCOL_REVISION,
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SmcReadValueImpl,
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SmcWriteValueImpl,
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SmcGetKeyCountImpl,
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SmcAddKeyImpl, //SmcMakeKeyImpl
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SmcGetKeyFromIndexImpl,
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SmcGetKeyInfoImpl,
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SmcResetImpl,
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SmcFlashTypeImpl,
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SmcUnsupportedImpl,
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SmcFlashWriteImpl,
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SmcFlashAuthImpl,
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0,
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SMC_PORT_BASE,
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FALSE,
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/* SmcUnknown1Impl,
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SmcUnknown2Impl,
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SmcUnknown3Impl,
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SmcUnknown4Impl,
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SmcUnknown5Impl */
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};
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APPLE_SMC_STATE_PROTOCOL SMCStateProtocol = {
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1,
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SmcUnknown1Impl,
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SmcUnknown2Impl,
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SmcUnknown3Impl,
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SmcUnknown4Impl,
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SmcUnknown5Impl
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};
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/****************************************************************
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* Entry point
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***************************************************************/
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/**
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* SMCHelper entry point. Installs AppleSMCProtocol.
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*/
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EFI_STATUS
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EFIAPI
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SMCHelperEntrypoint (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status; // = EFI_SUCCESS;
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// gBS = SystemTable->BootServices;
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Status = gBS->InstallMultipleProtocolInterfaces (
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&mHandle,
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&gAppleSMCProtocolGuid,
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&SMCHelperProtocol,
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&gAppleSMCStateProtocolGuid,
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&SMCStateProtocol,
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NULL
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);
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return Status;
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}
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