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Merge pull request #4 from gus33000/msm8994-pcie-uefioptions
Improvements for new UEFI releases (mppark)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| #pragma once | ||
| #ifndef _BOOTCONFIG_H_ | ||
|
|
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| #include <efi.h> | ||
| #include <efilib.h> | ||
|
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| // Sup types | ||
| #include "suptypes.h" | ||
|
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| // Bootloader | ||
| #include "bl.h" | ||
| #include "context.h" | ||
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| typedef struct _BcdElementType | ||
| { | ||
| union { | ||
| ULONG PackedValue; | ||
| struct { | ||
| ULONG SubType : 24; | ||
| ULONG Format : 4; | ||
| ULONG Class : 4; | ||
| }; | ||
| }; | ||
| } BcdElementType, * PBcdElementType; | ||
|
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| EFI_STATUS BlGetBootOptionBoolean( | ||
| PBL_BCD_OPTION List, | ||
| ULONG Type, | ||
| BOOLEAN* Value | ||
| ); | ||
|
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||
| EFI_STATUS BlGetBootOptionInteger( | ||
| PBL_BCD_OPTION List, | ||
| ULONG Type, | ||
| UINT64* Value | ||
| ); | ||
|
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| EFI_STATUS BlGetLoadedApplicationEntry( | ||
| PBOOT_APPLICATION_PARAMETER_BLOCK BootAppParameters, | ||
| PBL_LOADED_APPLICATION_ENTRY BlpApplicationEntry | ||
| ); | ||
| #endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| #include <efi.h> | ||
| #include <efilib.h> | ||
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| #include "application.h" | ||
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| EFI_STATUS MiscGetBootOption( | ||
| _In_ PBL_BCD_OPTION List, | ||
| _In_ ULONG Type) | ||
| { | ||
| uint32_t NextOption = 0, ListOption; | ||
| PBL_BCD_OPTION Option, FoundOption; | ||
|
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| /* No options, bail out */ | ||
| if (!List) | ||
| { | ||
| return EFI_SUCCESS; | ||
| } | ||
|
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| /* Loop while we find an option */ | ||
| FoundOption = NULL; | ||
| do | ||
| { | ||
| /* Get the next option and see if it matches the type */ | ||
| Option = (PBL_BCD_OPTION)((uint32_t)List + NextOption); | ||
| if ((Option->Type == Type) && !(Option->Empty)) | ||
| { | ||
| FoundOption = Option; | ||
| break; | ||
| } | ||
|
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| /* Store the offset of the next option */ | ||
| NextOption = Option->NextEntryOffset; | ||
|
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| /* Failed to match. Check for list options */ | ||
| ListOption = Option->ListOffset; | ||
| if (ListOption) | ||
| { | ||
| /* Try to get a match in the associated option */ | ||
| Option = MiscGetBootOption((PBL_BCD_OPTION)((uint32_t)Option + | ||
| ListOption), | ||
| Type); | ||
| if (Option) | ||
| { | ||
| /* Return it */ | ||
| FoundOption = Option; | ||
| break; | ||
| } | ||
| } | ||
| } while (NextOption); | ||
|
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| /* Return the option that was found, if any */ | ||
| return FoundOption; | ||
| } | ||
|
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| EFI_STATUS BlGetLoadedApplicationEntry( | ||
| _In_ PBOOT_APPLICATION_PARAMETER_BLOCK BootAppParameters, | ||
| _Out_ PBL_LOADED_APPLICATION_ENTRY BlpApplicationEntry) | ||
| { | ||
| PBL_APPLICATION_ENTRY AppEntry; | ||
| uint32_t ParamPointer; | ||
|
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| ParamPointer = (uint32_t)BootAppParameters; | ||
| AppEntry = (PBL_APPLICATION_ENTRY)(ParamPointer + BootAppParameters->AppEntryOffset); | ||
|
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| /* Check if the caller sent us their internal BCD options */ | ||
| if (AppEntry->Flags & BL_APPLICATION_ENTRY_BCD_OPTIONS_INTERNAL) | ||
| { | ||
| /* These are external to us now, as far as we are concerned */ | ||
| AppEntry->Flags &= ~BL_APPLICATION_ENTRY_BCD_OPTIONS_INTERNAL; | ||
| AppEntry->Flags |= BL_APPLICATION_ENTRY_BCD_OPTIONS_EXTERNAL; | ||
| } | ||
|
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| /* Save the application entry flags */ | ||
| BlpApplicationEntry->Flags = AppEntry->Flags; | ||
|
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| /* Copy the GUID and point to the options */ | ||
| BlpApplicationEntry->EFI_GUID = AppEntry->EFI_GUID; | ||
| BlpApplicationEntry->BcdData = &AppEntry->BcdData; | ||
|
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| return EFI_SUCCESS; | ||
| } | ||
|
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| EFI_STATUS BlGetBootOptionInteger( | ||
| _In_ PBL_BCD_OPTION List, | ||
| _In_ ULONG Type, | ||
| _Out_ UINT64* Value) | ||
| { | ||
| NTSTATUS Status; | ||
| PBL_BCD_OPTION Option; | ||
| BcdElementType ElementType; | ||
|
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||
| /* Make sure this is a BCD_TYPE_INTEGER */ | ||
| ElementType.PackedValue = Type; | ||
| if (ElementType.Format != 0x05) | ||
| { | ||
| return STATUS_INVALID_PARAMETER; | ||
| } | ||
|
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| /* Return the data */ | ||
| Option = MiscGetBootOption(List, Type); | ||
| if (Option) | ||
| { | ||
| *Value = *(UINT64*)((uint32_t)Option + Option->DataOffset); | ||
| } | ||
|
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| /* Option found */ | ||
| Status = Option ? STATUS_SUCCESS : STATUS_NOT_FOUND; | ||
|
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| return Status; | ||
| } | ||
|
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| EFI_STATUS BlGetBootOptionBoolean( | ||
| _In_ PBL_BCD_OPTION List, | ||
| _In_ ULONG Type, | ||
| _Out_ BOOLEAN* Value) | ||
| { | ||
| NTSTATUS Status; | ||
| PBL_BCD_OPTION Option; | ||
| BcdElementType ElementType; | ||
|
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| /* Make sure this is a BCD_TYPE_BOOLEAN */ | ||
| ElementType.PackedValue = Type; | ||
| if (ElementType.Format != 0x06) | ||
| { | ||
| return STATUS_INVALID_PARAMETER; | ||
| } | ||
|
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| /* Return the data */ | ||
| Option = MiscGetBootOption(List, Type); | ||
| if (Option) | ||
| { | ||
| *Value = *(BOOLEAN*)((uint32_t)Option + Option->DataOffset); | ||
| } | ||
|
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| /* Option found */ | ||
| Status = Option ? STATUS_SUCCESS : STATUS_NOT_FOUND; | ||
|
|
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| return Status; | ||
| } |
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