1 files changed, 63 insertions, 0 deletions
diff --git a/src/mainboard/system76/lemp9/acpi/hid.asl b/src/mainboard/system76/lemp9/acpi/hid.asl
new file mode 100644
index 000000000000..1f151d55821d
--- /dev/null
+++ b/src/mainboard/system76/lemp9/acpi/hid.asl
@@ -0,0 +1,63 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2019 System76
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+Device (HIDD)
+{
+	Name (_HID, "INT33D5")
+	Name (HBSY, Zero)
+	Name (HIDX, Zero)
+	Name (HRDY, Zero)
+
+	Method (HDEM, 0, Serialized)
+	{
+		HBSY = Zero
+		Return (HIDX)
+	}
+
+	Method (HDMM, 0, Serialized)
+	{
+		Return (Zero)
+	}
+
+	Method (HDSM, 1, Serialized)
+	{
+		HRDY = Arg0
+	}
+
+	Method (HPEM, 1, Serialized)
+	{
+		HBSY = One
+		HIDX = Arg0
+
+		Notify (HIDD, 0xC0)
+		Local0 = Zero
+		While (((Local0 < 0xFA) && HBSY))
+		{
+			Sleep (0x04)
+			Local0++
+		}
+
+		If ((HBSY == One))
+		{
+			HBSY = Zero
+			HIDX = Zero
+			Return (One)
+		}
+		Else
+		{
+			Return (Zero)
+		}
+	}
+}