GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/drivers/input/twl6030.c

@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * TWL6030 input
+ *
+ * Copyright (C) 2016 Paul Kocialkowski <contact@paulk.fr>
+ */
+
+#include <twl6030.h>
+
+int twl6030_input_power_button(void)
+{
+	u8 value;
+
+	twl6030_i2c_read_u8(TWL6030_CHIP_PM, TWL6030_STS_HW_CONDITIONS, &value);
+
+	/* Power button is active low. */
+	if (value & TWL6030_STS_HW_CONDITIONS_PWRON)
+		return 0;
+
+	return 1;
+}
+
+int twl6030_input_charger(void)
+{
+	u8 value;
+
+	twl6030_i2c_read_u8(TWL6030_CHIP_CHARGER, TWL6030_CONTROLLER_STAT1,
+		&value);
+
+	if (value & TWL6030_CONTROLLER_STAT1_VAC_DET)
+		return 1;
+
+	return 0;
+}
+
+int twl6030_input_usb(void)
+{
+	u8 value;
+
+	twl6030_i2c_read_u8(TWL6030_CHIP_CHARGER, TWL6030_CONTROLLER_STAT1,
+		&value);
+
+	if (value & TWL6030_CONTROLLER_STAT1_VBUS_DET)
+		return 1;
+
+	return 0;
+}