asurada: enable led

BUG=b:151802370
TEST=see led lit
BRANCH=master

Signed-off-by: Ting Shen <phoenixshen@google.com>
Change-Id: I53af6a029159e88358bf7f364d28586e2b950782
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2203474
Reviewed-by: Eric Yilun Lin <yllin@chromium.org>
Tested-by: Ting Shen <phoenixshen@chromium.org>
Commit-Queue: Ting Shen <phoenixshen@chromium.org>

3 files changed, 114 insertions, 1 deletions

diff --git a/board/asurada/board.h b/board/asurada/board.h
index 2dec54d0b1..ba86327876 100644
--- a/board/asurada/board.h
+++ b/board/asurada/board.h
@@ -73,6 +73,11 @@
 #define I2C_PORT_USB_MUX0 IT83XX_I2C_CH_C
 #define I2C_PORT_USB_MUX1 IT83XX_I2C_CH_E
 
+/* LED */
+#define CONFIG_LED_COMMON
+#define CONFIG_LED_ONOFF_STATES
+#define CONFIG_LED_POWER_LED
+
 /* PD / USB-C / PPC */
 #define CONFIG_CMD_PPC_DUMP
 #define CONFIG_USBC_PPC
diff --git a/board/asurada/build.mk b/board/asurada/build.mk
index ab67acde17..aab91ad430 100644
--- a/board/asurada/build.mk
+++ b/board/asurada/build.mk
@@ -10,4 +10,4 @@ CHIP:=it83xx
 CHIP_FAMILY:=it8xxx2
 CHIP_VARIANT:=it81202ax_1024
 
-board-y=board.o battery.o usb_pd_policy.o
+board-y=board.o battery.o led.o usb_pd_policy.o
diff --git a/board/asurada/led.c b/board/asurada/led.c
new file mode 100644
index 0000000000..29cf520700
--- /dev/null
+++ b/board/asurada/led.c
@@ -0,0 +1,108 @@
+/* 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 Asurada
+ */
+#include "common.h"
+#include "console.h"
+#include "driver/bc12/mt6360.h"
+#include "hooks.h"
+#include "led_common.h"
+#include "led_onoff_states.h"
+#include "pwm.h"
+
+#define CPRINTS(format, args...) cprints(CC_PWM, format, ## args)
+
+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:
+		mt6360_led_enable(MT6360_LED_RGB2, 0);
+		mt6360_led_enable(MT6360_LED_RGB3, 1);
+		break;
+	case EC_LED_COLOR_AMBER:
+		mt6360_led_enable(MT6360_LED_RGB2, 1);
+		mt6360_led_enable(MT6360_LED_RGB3, 0);
+		break;
+	default: /* LED_OFF and other unsupported colors */
+		mt6360_led_enable(MT6360_LED_RGB2, 0);
+		mt6360_led_enable(MT6360_LED_RGB3, 0);
+		break;
+	}
+}
+
+void led_set_color_power(enum ec_led_colors color)
+{
+	pwm_enable(PWM_CH_PWRLED, color == EC_LED_COLOR_WHITE);
+}
+
+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;
+}
+
+static void board_led_init(void)
+{
+	/* set brightness to lowest value */
+	mt6360_led_set_brightness(MT6360_LED_RGB2, 0);
+	mt6360_led_set_brightness(MT6360_LED_RGB3, 0);
+}
+DECLARE_HOOK(HOOK_INIT, board_led_init, HOOK_PRIO_DEFAULT);