Integrate uACPI

kernel/uACPI/tests/test-cases/read-fields-on-deref.asl

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+// Name: DerefOf reads field objects
+// Expect: int => 255
+
+DefinitionBlock ("", "DSDT", 2, "uTEST", "TESTTABL", 0xF0F0F0F0)
+{
+    Name (MAIN, 0xFF)
+
+    OperationRegion(MYRE, SystemMemory, 0, 128)
+    Field (MYRE, AnyAcc, NoLock) {
+        FILD, 40
+    }
+
+    FILD = "Hello"
+
+    Name (RES, "XXXXX")
+
+    Method (CHEK, 1) {
+        if (RES != Arg0) {
+            Printf("Invalid value read: %o, expected %o", RES, Arg0)
+            MAIN = 0
+        }
+    }
+
+    // First try a simple one-level reference
+    Local0 = RefOf(FILD)
+    RES = DerefOf(Local0)
+    CHEK("Hello")
+
+    // Now try a nested three-level reference
+    RES = "XXXXX"
+    Local1 = RefOf(Local0)
+    Local2 = RefOf(Local1)
+    FILD = "World"
+    RES = DerefOf(Local2)
+    CHEK("World")
+}