1 files changed, 54 insertions, 0 deletions
diff --git a/src/kernel/KernelKit/PCI/PCI.h b/src/kernel/KernelKit/PCI/PCI.h
new file mode 100644
index 00000000..f76270da
--- /dev/null
+++ b/src/kernel/KernelKit/PCI/PCI.h
@@ -0,0 +1,54 @@
+/* ========================================
+
+  Copyright (C) 2024-2025, Amlal El Mahrouss, licensed under the Apache 2.0 license.
+
+======================================== */
+
+#pragma once
+
+#include <NeKit/Defines.h>
+
+#define kPCIConfigAddressPort (0xCF8)
+#define kPCIConfigDataPort (0xCFC)
+
+#define kPCIDeviceCount (32)
+#define kPCIFuncCount (8)
+#define kPCIBusCount (256U)
+
+namespace Kernel::PCI {
+// model
+struct DeviceHeader {
+  UInt16 VendorId;
+  UInt16 DeviceId;
+  UInt8  Command;
+  UInt8  Status;
+  UInt8  RevisionId;
+  UInt8  ProgIf;
+  UInt8  SubClass;
+  UInt8  Class;
+  UInt8  CacheLineSz;
+  UInt8  LatencyTimer;
+  UInt8  HeaderType;
+  UInt8  Bist;
+  UInt8  Bus;
+  UInt8  Device;
+  UInt8  Function;
+};
+
+namespace Detail {
+  class BAR {
+   public:
+    UIntPtr BAR;
+    SizeT   Size;
+  };
+}  // namespace Detail
+
+class BAR {
+ public:
+  Detail::BAR BAR1;
+  Detail::BAR BAR2;
+  Detail::BAR BAR3;
+  Detail::BAR BAR4;
+  Detail::BAR BAR5;
+};
+}  // namespace Kernel::PCI