git: port from mercurial repo.

Signed-off-by: Amlal El Mahrouss <amlal.elmahrouss@icloud.com>

1 files changed, 77 insertions, 0 deletions

diff --git a/KernelKit/PCI/IO.hpp b/KernelKit/PCI/IO.hpp
new file mode 100644
index 00000000..95f8f9db
--- /dev/null
+++ b/KernelKit/PCI/IO.hpp
@@ -0,0 +1,77 @@
+/*
+ *	========================================================
+ *
+ *	hCore
+ * 	Copyright XPX Corp, all rights reserved.
+ *
+ * 	========================================================
+ */
+
+#pragma once
+
+#include <NewKit/Defines.hpp>
+
+#include <ArchKit/Arch.hpp>
+#include <NewKit/Array.hpp>
+#include <NewKit/Ref.hpp>
+
+namespace hCore
+{
+template<SizeT Sz>
+class IOArray final
+{
+  public:
+    IOArray() = delete;
+
+    IOArray(nullPtr) = delete;
+
+    explicit IOArray(Array <UShort, Sz> &ports) : m_Ports(ports) {}
+    ~IOArray() {}
+
+    IOArray &operator=(const IOArray &) = default;
+
+    IOArray(const IOArray &) = default;
+
+    operator bool() {
+        return !m_Ports.Empty();
+    }
+
+  public:
+    template<typename T>
+    T In(SizeT index) {
+        switch (sizeof(T)) {
+#ifdef __x86_64__
+        case 4:
+            return HAL::in32(m_Ports[index].Leak());
+        case 2:
+            return HAL::in16(m_Ports[index].Leak());
+        case 1:
+            return HAL::in8(m_Ports[index].Leak());
+#endif
+        default:
+            return 0xFFFF;
+        }
+    }
+
+    template<typename T>
+    void Out(SizeT index, T value) {
+        switch (sizeof(T)) {
+#ifdef __x86_64__
+        case 4:
+            HAL::out32(m_Ports[index].Leak(), value);
+        case 2:
+            HAL::out16(m_Ports[index].Leak(), value);
+        case 1:
+            HAL::out8(m_Ports[index].Leak(), value);
+#endif
+        default:
+            break;
+        }
+    }
+
+  private:
+    Array <UShort, Sz> m_Ports;
+};
+
+using IOArray16 = IOArray<16>;
+} // namespace hCore