1 files changed, 119 insertions, 0 deletions
diff --git a/src/mainboard/razer/blade_stealth_kbl/acpi/battery.asl b/src/mainboard/razer/blade_stealth_kbl/acpi/battery.asl
new file mode 100644
index 0000000000..a89496d69e
--- /dev/null
+++ b/src/mainboard/razer/blade_stealth_kbl/acpi/battery.asl
@@ -0,0 +1,119 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2019 Johanna Schander <coreboot@mimoja.de>
+ *
+ * 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 (BAT)
+{
+	Name (_HID, EisaId ("PNP0C0A"))
+	Name (_UID, 1)
+	Name (_PCL, Package () { \_SB })
+
+	Name (BSTP, 0)
+
+	Name (PBIF, Package () {
+		0x00000001,  /* 0x00: Power Unit: mAh */
+		0xFFFFFFFF,  /* 0x01: Design Capacity */
+		0xFFFFFFFF,  /* 0x02: Last Full Charge Capacity */
+		0x00000001,  /* 0x03: Battery Technology: Rechargeable */
+		0xFFFFFFFF,  /* 0x04: Design Voltage */
+		0x00000003,  /* 0x05: Design Capacity of Warning */
+		0xFFFFFFFF,  /* 0x06: Design Capacity of Low */
+		0x00000001,  /* 0x07: Capacity Granularity 1 */
+		0x00000001,  /* 0x08: Capacity Granularity 2 */
+		"Razer Blade Stealth",
+		"SERIAL",
+		"LiIon",
+		"Razer"
+	})
+
+
+	Name (PBST, Package () {
+		0x00000000,  /* 0x00: Battery State */
+		0xFFFFFFFF,  /* 0x01: Battery Present Rate */
+		0xFFFFFFFF,  /* 0x02: Battery Remaining Capacity */
+		0xFFFFFFFF,  /* 0x03: Battery Present Voltage */
+	})
+
+	Method (_STA, 0, Serialized)
+	{
+		Return (0x1F)
+	}
+
+	Method (_BIF, 0, Serialized)
+	{
+		/* Last Full Charge Capacity */
+		Store (BFCP, Index (PBIF, 2))
+
+		/* Design Voltage */
+		Store (BDVT, Index (PBIF, 4))
+
+		/* Design Capacity */
+		Store (BDCP, Index (PBIF, 1))
+
+		/* Design Capacity of Warning */
+		Store (BDCP / 0x32, Index (PBIF, 5))
+
+		/* Design Capacity of Low */
+		Store (BDCP / 0x64, Index (PBIF, 6))
+
+		Store (ToString (BSER, Ones), Index (PBIF, 0x0A))
+
+		Return (PBIF)
+	}
+
+	Method (_BST, 0, Serialized)
+	{
+		/*
+		 * 0: BATTERY STATE
+		 *
+		 * bit 0 = discharging
+		 * bit 1 = charging
+		 * bit 2 = critical level
+		 */
+
+		/* Check if AC is present */
+		If (ACEX) {
+			/* Read battery status from EC */
+			Store (BCST, Local0)
+		} Else {
+			/* Always discharging when on battery power */
+			Store (0x01, Local0)
+		}
+
+		Store (Local0, Index (PBST, 0))
+
+		/* Notify if battery state has changed since last time */
+		If (LNotEqual (Local0, BSTP)) {
+			Store (Local0, BSTP)
+			Notify (BAT, 0x80)
+		}
+
+		/*
+		 * 1: BATTERY PRESENT RATE
+		 */
+		Store (BCRT, Index (PBST, 1))
+
+		/*
+		 * 2: BATTERY REMAINING CAPACITY
+		 */
+		Store (BRCP, Index (PBST, 2))
+
+		/*
+		 * 3: BATTERY PRESENT VOLTAGE
+		 */
+		Store (BCVT, Index (PBST, 3))
+
+		Return (PBST)
+	}
+}