1 files changed, 77 insertions, 0 deletions
diff --git a/src/ec/starlabs/it8987/acpi/battery.asl b/src/ec/starlabs/it8987/acpi/battery.asl
new file mode 100644
index 0000000000..8936701d1d
--- /dev/null
+++ b/src/ec/starlabs/it8987/acpi/battery.asl
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+Device (BAT0)
+{
+	Name (_HID, EISAID ("PNP0C0A"))
+	Name (_UID, 1)
+	Name (_PCL, Package () { \_SB })
+
+	// Battery Slot Status
+	Method (_STA, 0, Serialized)
+	{
+		If (ECWR & 0x02)
+		{
+			Return (0x1F)
+		}
+		Return (0x0F)
+	}
+
+	// Default Static Battery Information
+	Name (BPKG, Package (13)
+	{
+		1,		//  0: Power Unit
+		0xFFFFFFFF,	//  1: Design Capacity
+		0xFFFFFFFF,	//  2: Last Full Charge Capacity
+		1,		//  3: Battery Technology(Rechargeable)
+		0xFFFFFFFF,	//  4: Design Voltage 10.8V
+		0,		//  5: Design capacity of warning
+		0,		//  6: Design capacity of low
+		0x64,		//  7: Battery capacity granularity 1
+		0,		//  8: Battery capacity granularity 2
+		"CN6613-2S3P",	//  9: Model Number
+		"6UA3",		// 10: Serial Number
+		"Real",		// 11: Battery Type
+		"GDPT"		// 12: OEM Information
+	})
+
+	Method (_BIF, 0, Serialized)
+	{
+		BPKG[1] = B1DC
+		BPKG[2] = B1FC
+		BPKG[4] = B1FV
+		If (B1FC)
+		{
+			BPKG[5] = B1FC / 10
+			BPKG[6] = B1FC / 25
+			BPKG[7] = B1DC / 100
+		}
+
+		Return (BPKG)
+	}
+
+	Name (PKG1, Package (4)
+	{
+		0xFFFFFFFF,	// Battery State
+		0xFFFFFFFF,	// Battery Present Rate
+		0xFFFFFFFF,	// Battery Remaining Capacity
+		0xFFFFFFFF,	// Battery Present Voltage
+	})
+
+	Method (_BST, 0, Serialized)
+	{
+
+
+		PKG1[0] = B1ST & 0x07
+		If (B1ST & 0x01)
+		{
+			PKG1[1] = B1CR
+		}
+		Else
+		{
+			PKG1[1] = B1CR
+		}
+		PKG1[2] = B1RC
+		PKG1[3] = B1VT
+		Return (PKG1)
+	}
+}