diff options
author | Mike M Hsieh <mike.m.hsieh@intel.com> | 2015-08-27 11:44:14 +0800 |
---|---|---|
committer | chrome-bot <chrome-bot@chromium.org> | 2015-08-27 14:39:53 -0700 |
commit | 6ced01bb864fb3a8479ab621827d92f0ed9ecc67 (patch) | |
tree | 0cb7a5fb15b880cdb613417b6ed44ae29336cc60 | |
parent | 5bc9b3280765211deec626e25105c73c2ebb3e94 (diff) | |
download | chrome-ec-6ced01bb864fb3a8479ab621827d92f0ed9ecc67.tar.gz |
kunimitsu: battery led implementation
Implement LED function for battery charging behavior
BUG=none
BRANCH=none
TEST=checked and verified LED behavior while charging and remaining battery
capacity under 3%/10%
Signed-off-by: Mike Hsieh <mike.m.hsieh@intel.com>
Change-Id: Ic340d4ea428f7726611b2ae24a4d18563c63ee80
Reviewed-on: https://chromium-review.googlesource.com/295476
Commit-Ready: Wenkai Du <wenkai.du@intel.com>
Tested-by: Wenkai Du <wenkai.du@intel.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
-rw-r--r-- | board/kunimitsu/board.h | 5 | ||||
-rw-r--r-- | board/kunimitsu/build.mk | 2 | ||||
-rw-r--r-- | board/kunimitsu/led.c | 165 | ||||
-rw-r--r-- | include/ec_commands.h | 1 |
4 files changed, 172 insertions, 1 deletions
diff --git a/board/kunimitsu/board.h b/board/kunimitsu/board.h index 013eb233d7..3149e07f9d 100644 --- a/board/kunimitsu/board.h +++ b/board/kunimitsu/board.h @@ -37,6 +37,7 @@ #undef CONFIG_KEYBOARD_KSO_BASE #define CONFIG_KEYBOARD_KSO_BASE 0 /* KSO starts from KSO04 */ #define CONFIG_KEYBOARD_PROTOCOL_8042 +#define CONFIG_LED_COMMON #define CONFIG_LID_SWITCH #define CONFIG_PORT80_TASK_EN #define CONFIG_POWER_BUTTON @@ -76,6 +77,10 @@ #define CONFIG_SYSTEM_UNLOCKED #define CONFIG_WATCHDOG_HELP +/* LED signals */ +#define GPIO_BAT_LED_BLUE GPIO_CHARGE_LED1 +#define GPIO_BAT_LED_AMBER GPIO_CHARGE_LED2 + /* I2C ports */ #define I2C_PORT_BATTERY MEC1322_I2C0_0 #define I2C_PORT_CHARGER MEC1322_I2C0_0 diff --git a/board/kunimitsu/build.mk b/board/kunimitsu/build.mk index da7f5f9f98..3995654f1e 100644 --- a/board/kunimitsu/build.mk +++ b/board/kunimitsu/build.mk @@ -10,6 +10,6 @@ CHIP:=mec1322 CHIP_SPI_SIZE_KB:=512 -board-y=board.o +board-y=board.o led.o board-$(CONFIG_BATTERY_SMART)+=battery.o board-$(CONFIG_USB_POWER_DELIVERY)+=usb_pd_policy.o diff --git a/board/kunimitsu/led.c b/board/kunimitsu/led.c new file mode 100644 index 0000000000..230695dd5b --- /dev/null +++ b/board/kunimitsu/led.c @@ -0,0 +1,165 @@ +/* Copyright 2015 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 Glados. + */ + +#include "battery.h" +#include "charge_state.h" +#include "chipset.h" +#include "ec_commands.h" +#include "gpio.h" +#include "hooks.h" +#include "host_command.h" +#include "led_common.h" +#include "util.h" + +#define BAT_LED_ON 1 +#define BAT_LED_OFF 0 + +#define CRITICAL_LOW_BATTERY_PERCENTAGE 3 +#define LOW_BATTERY_PERCENTAGE 10 + +#define LED_TOTAL_4SECS_TICKS 16 +#define LED_TOTAL_2SECS_TICKS 8 +#define LED_ON_1SEC_TICKS 4 +#define LED_ON_2SECS_TICKS 8 + +const enum ec_led_id supported_led_ids[] = { + EC_LED_ID_BATTERY_LED}; + +const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids); + +enum led_color { + LED_OFF = 0, + LED_BLUE, + LED_PURPLE, + LED_AMBER, + LED_COLOR_COUNT /* Number of colors, not a color itself */ +}; + +static int bat_led_set_color(enum led_color color) +{ + switch (color) { + case LED_OFF: + gpio_set_level(GPIO_BAT_LED_BLUE, BAT_LED_OFF); + gpio_set_level(GPIO_BAT_LED_AMBER, BAT_LED_OFF); + break; + case LED_BLUE: + gpio_set_level(GPIO_BAT_LED_BLUE, BAT_LED_ON); + gpio_set_level(GPIO_BAT_LED_AMBER, BAT_LED_OFF); + break; + case LED_PURPLE: + gpio_set_level(GPIO_BAT_LED_BLUE, BAT_LED_ON); + gpio_set_level(GPIO_BAT_LED_AMBER, BAT_LED_ON); + break; + case LED_AMBER: + gpio_set_level(GPIO_BAT_LED_BLUE, BAT_LED_OFF); + gpio_set_level(GPIO_BAT_LED_AMBER, BAT_LED_ON); + break; + default: + return EC_ERROR_UNKNOWN; + } + return EC_SUCCESS; +} + +void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range) +{ + brightness_range[EC_LED_COLOR_BLUE] = 1; + brightness_range[EC_LED_COLOR_AMBER] = 1; +} + +static int kunimitsu_led_set_color_battery(enum led_color color) +{ + return bat_led_set_color(color); +} + +static int kunimitsu_led_set_color(enum ec_led_id led_id, enum led_color color) +{ + int rv; + + led_auto_control(led_id, 0); + switch (led_id) { + case EC_LED_ID_BATTERY_LED: + rv = kunimitsu_led_set_color_battery(color); + break; + default: + return EC_ERROR_UNKNOWN; + } + return rv; +} + +int led_set_brightness(enum ec_led_id led_id, const uint8_t *brightness) +{ + if (brightness[EC_LED_COLOR_BLUE] != 0 && + brightness[EC_LED_COLOR_AMBER] != 0) + kunimitsu_led_set_color(led_id, LED_PURPLE); + else if (brightness[EC_LED_COLOR_BLUE] != 0) + kunimitsu_led_set_color(led_id, LED_BLUE); + else if (brightness[EC_LED_COLOR_AMBER] != 0) + kunimitsu_led_set_color(led_id, LED_AMBER); + else + kunimitsu_led_set_color(led_id, LED_OFF); + + return EC_SUCCESS; +} + +static void kunimitsu_led_set_battery(void) +{ + static int battery_ticks; + uint32_t chflags = charge_get_flags(); + + battery_ticks++; + + /* BAT LED behavior: + * Same as the chromeos spec + * Green/Amber for CHARGE_FLAG_FORCE_IDLE + */ + switch (charge_get_state()) { + case PWR_STATE_CHARGE: + kunimitsu_led_set_color_battery(LED_PURPLE); + break; + case PWR_STATE_DISCHARGE: + /* Less than 3%, blink one second every two second */ + if (charge_get_percent() < CRITICAL_LOW_BATTERY_PERCENTAGE) + kunimitsu_led_set_color_battery( + (battery_ticks % LED_TOTAL_2SECS_TICKS < + LED_ON_1SEC_TICKS) ? LED_PURPLE : LED_OFF); + /* Less than 10%, blink one second every four seconds */ + else if (charge_get_percent() < LOW_BATTERY_PERCENTAGE) + kunimitsu_led_set_color_battery( + (battery_ticks % LED_TOTAL_4SECS_TICKS < + LED_ON_1SEC_TICKS) ? LED_PURPLE : LED_OFF); + else + kunimitsu_led_set_color_battery(LED_OFF); + break; + case PWR_STATE_ERROR: + kunimitsu_led_set_color_battery( + (battery_ticks % LED_TOTAL_2SECS_TICKS < + LED_ON_1SEC_TICKS) ? LED_AMBER : LED_OFF); + break; + case PWR_STATE_CHARGE_NEAR_FULL: + kunimitsu_led_set_color_battery(LED_BLUE); + break; + case PWR_STATE_IDLE: /* External power connected in IDLE */ + if (chflags & CHARGE_FLAG_FORCE_IDLE) + kunimitsu_led_set_color_battery( + (battery_ticks % LED_TOTAL_4SECS_TICKS < + LED_ON_2SECS_TICKS) ? LED_AMBER : LED_BLUE); + else + kunimitsu_led_set_color_battery(LED_BLUE); + break; + default: + /* Other states don't alter LED behavior */ + break; + } +} + +/** * Called by hook task every 1 sec */ +static void led_second(void) +{ + if (led_auto_control_is_enabled(EC_LED_ID_BATTERY_LED)) + kunimitsu_led_set_battery(); +} +DECLARE_HOOK(HOOK_SECOND, led_second, HOOK_PRIO_DEFAULT); diff --git a/include/ec_commands.h b/include/ec_commands.h index 6f6ee32a34..14ef6fb20a 100644 --- a/include/ec_commands.h +++ b/include/ec_commands.h @@ -1532,6 +1532,7 @@ enum ec_led_colors { EC_LED_COLOR_BLUE, EC_LED_COLOR_YELLOW, EC_LED_COLOR_WHITE, + EC_LED_COLOR_AMBER, EC_LED_COLOR_COUNT }; |