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-rw-r--r--dev/Kernel/StorageKit/PRDT.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/dev/Kernel/StorageKit/PRDT.h b/dev/Kernel/StorageKit/PRDT.h
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+++ b/dev/Kernel/StorageKit/PRDT.h
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+/* -------------------------------------------
+
+ Copyright (C) 2024, TQ B.V, all rights reserved.
+
+------------------------------------------- */
+
+#pragma once
+
+#include <KernelKit/PCI/DMA.h>
+#include <KernelKit/PCI/Iterator.h>
+#include <NewKit/Ref.h>
+
+#define kPrdtTransferSize (sizeof(Kernel::UShort))
+
+namespace Kernel
+{
+ /// @brief Tranfer information about PRD.
+ enum kPRDTTransfer
+ {
+ kPRDTTransferInProgress,
+ kPRDTTransferIsDone,
+ kPRDTTransferCount,
+ };
+
+ /// @brief Physical Region Descriptor Table.
+ struct PRDT
+ {
+ UInt32 fPhysAddress;
+ UInt32 fSectorCount;
+ UInt8 fEndBit;
+ };
+
+ void construct_prdt(Ref<PRDT>& prd);
+
+ EXTERN_C Int32 kPRDTTransferStatus;
+} // namespace Kernel