jacuzzi: enable led

Implemented pwm module using it8801, and enable led_pwm on jacuzzi.

BUG=b:135086465
TEST=1) verify the led status looks good (full=green, charging=blue)
     2) enable CONFIG_CMD_LEDTEST and verify the color settings looks
        good.
BRANCH=none

Change-Id: Ifa682473c02fec98ae026e2502df775505d614d7
Signed-off-by: Ting Shen <phoenixshen@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1892381
Reviewed-by: Eric Yilun Lin <yllin@chromium.org>
Tested-by: Ting Shen <phoenixshen@chromium.org>
Commit-Queue: Ting Shen <phoenixshen@chromium.org>

4 files changed, 88 insertions, 6 deletions

diff --git a/board/jacuzzi/board.c b/board/jacuzzi/board.c
index 49bd9e191c..0626e97b37 100644
--- a/board/jacuzzi/board.c
+++ b/board/jacuzzi/board.c
@@ -32,8 +32,6 @@
 #include "lid_switch.h"
 #include "power.h"
 #include "power_button.h"
-#include "pwm.h"
-#include "pwm_chip.h"
 #include "registers.h"
 #include "spi.h"
 #include "system.h"
@@ -114,6 +112,14 @@ const struct pi3usb9201_config_t pi3usb9201_bc12_chips[] = {
 };
 
 /******************************************************************************/
+const struct it8801_pwm_t it8801_pwm_channels[] = {
+	[PWM_CH_LED_RED] = { 1 },
+	[PWM_CH_LED_GREEN] = { 2 },
+	[PWM_CH_LED_BLUE] = { 3 },
+};
+BUILD_ASSERT(ARRAY_SIZE(it8801_pwm_channels) == PWM_CH_COUNT);
+
+/******************************************************************************/
 const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_MAX_COUNT] = {
 	{
 		.bus_type = EC_BUS_TYPE_I2C,
diff --git a/board/jacuzzi/board.h b/board/jacuzzi/board.h
index e965ce128f..288d5e3faf 100644
--- a/board/jacuzzi/board.h
+++ b/board/jacuzzi/board.h
@@ -22,9 +22,6 @@
 #define CONFIG_CHIPSET_POWER_SEQ_VERSION 1
 #endif
 
-/* TODO(b:135086465) led implementation */
-#undef CONFIG_LED_COMMON
-
 #define CONFIG_BATTERY_HW_PRESENT_CUSTOM
 
 #define CONFIG_CHARGER_PSYS
@@ -89,6 +86,11 @@
 
 #define PD_OPERATING_POWER_MW 30000
 
+#define CONFIG_LED_PWM
+#define CONFIG_LED_PWM_CHARGE_STATE_ONLY
+#define CONFIG_IO_EXPANDER_IT8801_PWM
+#define CONFIG_LED_PWM_COUNT 1
+
 #ifndef __ASSEMBLER__
 
 enum adc_channel {
@@ -126,6 +128,13 @@ enum battery_type {
 	BATTERY_TYPE_COUNT,
 };
 
+enum pwm_channel {
+	PWM_CH_LED_RED,
+	PWM_CH_LED_GREEN,
+	PWM_CH_LED_BLUE,
+	PWM_CH_COUNT
+};
+
 #include "gpio_signal.h"
 #include "registers.h"
 
diff --git a/board/jacuzzi/build.mk b/board/jacuzzi/build.mk
index 7f9669d7d7..e449fce9fc 100644
--- a/board/jacuzzi/build.mk
+++ b/board/jacuzzi/build.mk
@@ -12,4 +12,4 @@ CHIP_FAMILY:=stm32f0
 CHIP_VARIANT:=stm32f09x
 BASEBOARD:=kukui
 
-board-y=battery.o board.o
+board-y=battery.o board.o led.o
diff --git a/board/jacuzzi/led.c b/board/jacuzzi/led.c
new file mode 100644
index 0000000000..26ef39a245
--- /dev/null
+++ b/board/jacuzzi/led.c
@@ -0,0 +1,67 @@
+/* Copyright 2019 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 Jacuzzi
+ */
+
+#include "common.h"
+#include "driver/ioexpander/it8801.h"
+#include "ec_commands.h"
+#include "led_common.h"
+#include "led_pwm.h"
+
+const enum ec_led_id supported_led_ids[] = {
+	EC_LED_ID_POWER_LED,
+};
+const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids);
+
+struct pwm_led led_color_map[EC_LED_COLOR_COUNT] = {
+	[EC_LED_COLOR_RED] =    {5, 0, 0},
+	[EC_LED_COLOR_GREEN] =  {0, 5, 0},
+	[EC_LED_COLOR_BLUE] =   {0, 0, 5},
+	[EC_LED_COLOR_YELLOW] = {5, 5, 0},
+	[EC_LED_COLOR_WHITE] =  {2, 2, 2},
+	[EC_LED_COLOR_AMBER] =  {5, 3, 0},
+};
+
+struct pwm_led pwm_leds[CONFIG_LED_PWM_COUNT] = {
+	[PWM_LED0] = {
+		.ch0 = PWM_CH_LED_RED,
+		.ch1 = PWM_CH_LED_GREEN,
+		.ch2 = PWM_CH_LED_BLUE,
+		.enable = &it8801_pwm_enable,
+		.set_duty = &it8801_pwm_set_duty,
+	},
+};
+
+void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range)
+{
+	brightness_range[EC_LED_COLOR_RED] = 100;
+	brightness_range[EC_LED_COLOR_GREEN] = 100;
+	brightness_range[EC_LED_COLOR_YELLOW] = 100;
+	brightness_range[EC_LED_COLOR_AMBER] = 100;
+	brightness_range[EC_LED_COLOR_BLUE] = 100;
+	brightness_range[EC_LED_COLOR_WHITE] = 100;
+}
+
+int led_set_brightness(enum ec_led_id led_id, const uint8_t *brightness)
+{
+	if (brightness[EC_LED_COLOR_RED])
+		set_pwm_led_color(PWM_LED0, EC_LED_COLOR_RED);
+	else if (brightness[EC_LED_COLOR_GREEN])
+		set_pwm_led_color(PWM_LED0, EC_LED_COLOR_GREEN);
+	else if (brightness[EC_LED_COLOR_YELLOW])
+		set_pwm_led_color(PWM_LED0, EC_LED_COLOR_YELLOW);
+	else if (brightness[EC_LED_COLOR_AMBER])
+		set_pwm_led_color(PWM_LED0, EC_LED_COLOR_AMBER);
+	else if (brightness[EC_LED_COLOR_BLUE])
+		set_pwm_led_color(PWM_LED0, EC_LED_COLOR_BLUE);
+	else if (brightness[EC_LED_COLOR_WHITE])
+		set_pwm_led_color(PWM_LED0, EC_LED_COLOR_WHITE);
+	else
+		/* Otherwise, the "color" is "off". */
+		set_pwm_led_color(PWM_LED0, -1);
+
+	return EC_SUCCESS;
+}