1 files changed, 105 insertions, 0 deletions
diff --git a/board/cerise/led.c b/board/cerise/led.c
new file mode 100644
index 0000000000..ff5f9f2373
--- /dev/null
+++ b/board/cerise/led.c
@@ -0,0 +1,105 @@
+/* Copyright 2020 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ *
+ * Power and battery LED control for Damu
+ */
+#include "common.h"
+#include "ioexpander.h"
+#include "driver/ioexpander/it8801.h"
+#include "ec_commands.h"
+#include "led_common.h"
+#include "led_onoff_states.h"
+
+#define LED_ON_LVL 0
+#define LED_OFF_LVL 1
+
+const int led_charge_lvl_1 = 5;
+const int led_charge_lvl_2 = 95;
+
+struct led_descriptor led_bat_state_table[LED_NUM_STATES][LED_NUM_PHASES] = {
+	[STATE_CHARGING_LVL_1]	     = {{EC_LED_COLOR_AMBER, LED_INDEFINITE} },
+	[STATE_CHARGING_LVL_2]	     = {{EC_LED_COLOR_AMBER, LED_INDEFINITE} },
+	[STATE_CHARGING_FULL_CHARGE] = {{EC_LED_COLOR_WHITE,  LED_INDEFINITE} },
+	[STATE_DISCHARGE_S0]	     = {{LED_OFF,  LED_INDEFINITE} },
+	[STATE_DISCHARGE_S3]	     = {{LED_OFF,  LED_INDEFINITE} },
+	[STATE_DISCHARGE_S5]         = {{LED_OFF,  LED_INDEFINITE} },
+	[STATE_BATTERY_ERROR]        = {{EC_LED_COLOR_AMBER,  1 * LED_ONE_SEC},
+					{LED_OFF,	    1 * LED_ONE_SEC} },
+	[STATE_FACTORY_TEST]         = {{EC_LED_COLOR_WHITE,   2 * LED_ONE_SEC},
+					{EC_LED_COLOR_AMBER, 2 * LED_ONE_SEC} },
+};
+
+const struct led_descriptor led_pwr_state_table[PWR_LED_NUM_STATES][LED_NUM_PHASES] = {
+	[PWR_LED_STATE_ON]           = {{EC_LED_COLOR_WHITE, LED_INDEFINITE} },
+	[PWR_LED_STATE_SUSPEND_AC]   = {{EC_LED_COLOR_WHITE, 1 * LED_ONE_SEC},
+					{LED_OFF,	   3 * LED_ONE_SEC} },
+	[PWR_LED_STATE_SUSPEND_NO_AC] = {{LED_OFF, LED_INDEFINITE} },
+	[PWR_LED_STATE_OFF]           = {{LED_OFF, LED_INDEFINITE} },
+};
+
+const enum ec_led_id supported_led_ids[] = {
+	EC_LED_ID_POWER_LED,
+	EC_LED_ID_BATTERY_LED
+};
+const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids);
+
+void led_set_color_battery(enum ec_led_colors color)
+{
+	switch (color) {
+	case EC_LED_COLOR_WHITE:
+		ioex_set_level(IOEX_BAT_LED_WHITE_L, LED_ON_LVL);
+		ioex_set_level(IOEX_BAT_LED_AMBER_L, LED_OFF_LVL);
+		break;
+	case EC_LED_COLOR_AMBER:
+		ioex_set_level(IOEX_BAT_LED_WHITE_L, LED_OFF_LVL);
+		ioex_set_level(IOEX_BAT_LED_AMBER_L, LED_ON_LVL);
+		break;
+	default: /* LED_OFF and other unsupported colors */
+		ioex_set_level(IOEX_BAT_LED_WHITE_L, LED_OFF_LVL);
+		ioex_set_level(IOEX_BAT_LED_AMBER_L, LED_OFF_LVL);
+		break;
+	}
+}
+
+void led_set_color_power(enum ec_led_colors color)
+{
+	switch (color) {
+	case EC_LED_COLOR_WHITE:
+		ioex_set_level(IOEX_PWR_LED_WHITE_L, LED_ON_LVL);
+		break;
+	default:
+		ioex_set_level(IOEX_PWR_LED_WHITE_L, LED_OFF_LVL);
+		break;
+	}
+}
+
+void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range)
+{
+	if (led_id == EC_LED_ID_BATTERY_LED) {
+		brightness_range[EC_LED_COLOR_AMBER] = 1;
+		brightness_range[EC_LED_COLOR_WHITE] = 1;
+	} else if (led_id == EC_LED_ID_POWER_LED) {
+		brightness_range[EC_LED_COLOR_WHITE] = 1;
+	}
+}
+
+int led_set_brightness(enum ec_led_id led_id, const uint8_t *brightness)
+{
+	if (led_id == EC_LED_ID_BATTERY_LED) {
+		if (brightness[EC_LED_COLOR_AMBER] != 0)
+			led_set_color_battery(EC_LED_COLOR_AMBER);
+		else if (brightness[EC_LED_COLOR_WHITE] != 0)
+			led_set_color_battery(EC_LED_COLOR_WHITE);
+		else
+			led_set_color_battery(LED_OFF);
+	} else if (led_id == EC_LED_ID_POWER_LED) {
+		if (brightness[EC_LED_COLOR_WHITE] != 0)
+			led_set_color_power(EC_LED_COLOR_WHITE);
+		else
+			led_set_color_power(LED_OFF);
+	} else {
+		return EC_ERROR_INVAL;
+	}
+	return EC_SUCCESS;
+}