DynamicTablesPkg: Add AmlGetEisaIdFromString() to AcpiHelperLib
Add a function converting a 7 characters string to its UINT32 EISAID. The algorithm used to create the EISAID is described in the ACPI 6.4 specification, s19.3.4 "ASL Macros". Reviewed-by: Sami Mujawar <sami.mujawar@arm.com> Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
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@@ -73,4 +73,21 @@ IsValidAcpiId (
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IN CONST CHAR8 * Hid
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);
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/** Convert a EisaId string to its compressed UINT32 equivalent.
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Cf. ACPI 6.4 specification, s19.3.4 "ASL Macros": "Eisaid"
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@param [in] EisaIdStr Input EisaId string.
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@param [out] EisaIdInt Output EisaId UINT32 (compressed).
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@retval EFI_SUCCESS The function completed successfully.
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@retval EFI_INVALID_PARAMETER Invalid parameter.
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**/
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EFI_STATUS
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EFIAPI
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AmlGetEisaIdFromString (
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IN CONST CHAR8 * EisaIdStr,
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OUT UINT32 * EisaIdInt
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);
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#endif // ACPI_HELPER_LIB_H_
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