1 files changed, 123 insertions, 0 deletions
diff --git a/src/ec/roda/it8518/acpi/battery.asl b/src/ec/roda/it8518/acpi/battery.asl
new file mode 100644
index 0000000000..ffe2c2f6e9
--- /dev/null
+++ b/src/ec/roda/it8518/acpi/battery.asl
@@ -0,0 +1,123 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015 secunet Security Networks AG
+ *
+ * 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.
+ */
+
+//SCOPE EC0
+
+Device (BAT0)
+{
+	Name (_HID, EISAID ("PNP0C0A"))
+	Name (_UID, 1)
+	Name (_PCL, Package () { \_SB })
+
+
+	//
+	// Default Static Battery Information
+	//
+	Name (PBIF, Package (13)
+	{
+		1,		//  0: Power Unit
+		4800,		//  1: Design Capacity
+		4650,		//  2: Last Full Charge Capacity
+		1,		//  3: Battery Technology(Rechargeable)
+		12608,		//  4: Design Voltage 10.8V
+		0,		//  5: Design capacity of warning
+		0,		//  6: Design capacity of low
+		0,		//  7: Battery capacity granularity 1
+		0,		//  8: Battery capacity granularity 2
+		"BAT0",		//  9: Model Number
+		"RT672",	// 10: Serial Number
+		"LiON",		// 11: Battery Type
+		"ASP"		// 12: OEM Information
+	})
+
+
+	Name (PBST, Package (4)
+	{
+		0x00000000,	// Battery State
+		0xFFFFFFFF,	// Battery Present Rate
+		0xFFFFFFFF,	// Battery Remaining Capacity
+		0xFFFFFFFF,	// Battery Present Voltage
+	})
+
+
+	// Battery Slot Status
+	Method (_STA, 0, Serialized)
+	{
+		Store ("-----> BAT0: _STA", Debug)
+
+		Store (0x0F, Local0)
+
+		Store (ECPS, Local1)
+		And (Local1, 0x02, Local1)
+		If (LEqual (Local1, 0x02))
+		{
+			Store (0x1F, Local0)
+		}
+
+		Store ("<----- BAT0: _STA", Debug)
+
+		Return (Local0)
+	}
+
+	Method (_BIF, 0, Serialized)
+	{
+		Store ("-----> BAT0: _BIF", Debug)
+
+		Store (B0FC, Index (PBIF, 0x02))
+		Store (Divide (Multiply (B0FC, 6), 100), Index (PBIF, 0x05))
+		Store (Divide (Multiply (B0FC, 3), 100), Index (PBIF, 0x06))
+
+		Store ("<----- BAT0: _BIF", Debug)
+
+		Return (PBIF)
+	}
+
+	Method (_BST, 0, Serialized)
+	{
+		Store ("-----> BAT0: _BST", Debug)
+
+		Store (B0ST, Local0)
+		And (Local0, 0x40, Local0)
+		If (LEqual (Local0, 0x40))
+		{
+			If (LEqual (PWRS, 1))
+			{
+				Store (0x00, Index (PBST, 0x00))
+			}
+			Else
+			{
+				Store (0x01, Index (PBST, 0x00))
+			}
+		}
+		Else
+		{
+			Store (0x02, Index (PBST, 0x00))
+		}
+
+		Store (B0AC, Local1)
+		If (LGreaterEqual (Local1, 0x8000))
+		{
+			Subtract (0x00010000, Local1, Local1)
+		}
+
+		Store (Local1, Index (PBST, 0x01))
+		Store (B0RC, Index (PBST, 0x02))
+		Store (B0VT, Index (PBST, 0x03))
+
+		Store ("<----- BAT0: _BST", Debug)
+
+		Return (PBST)
+	}
+}