diff options
-rw-r--r-- | board/cyan/led.c | 48 |
1 files changed, 39 insertions, 9 deletions
diff --git a/board/cyan/led.c b/board/cyan/led.c index e8c2f13eb3..d6953b4fab 100644 --- a/board/cyan/led.c +++ b/board/cyan/led.c @@ -15,8 +15,14 @@ #include "led_common.h" #include "util.h" -#define LED_TOTAL_TICKS 16 -#define LED_ON_TICKS 4 +#define CRITICAL_LOW_BATTERY_PERMILLAGE 71 +#define LOW_BATTERY_PERMILLAGE 137 +#define FULL_BATTERY_PERMILLAGE 937 + +#define LED_TOTAL_4SECS_TICKS 16 +#define LED_TOTAL_2SECS_TICKS 8 +#define LED_ON_1SEC_TICKS 4 +#define LED_ON_2SECS_TICKS 8 enum led_color { LED_OFF = 0, @@ -124,8 +130,8 @@ static void cyan_led_set_power(void) /* Blink once every four seconds. */ cyan_led_set_color_power( - (power_ticks % LED_TOTAL_TICKS < LED_ON_TICKS) ? - LED_AMBER : LED_OFF); + (power_ticks % LED_TOTAL_4SECS_TICKS < + LED_ON_1SEC_TICKS) ? LED_AMBER : LED_OFF); previous_state_suspend = 1; return; @@ -143,28 +149,52 @@ static void cyan_led_set_battery(void) { static int battery_ticks; uint32_t chflags = charge_get_flags(); + int remaining_capacity; + int full_charge_capacity; + int permillage; battery_ticks++; + remaining_capacity = *(int *)host_get_memmap(EC_MEMMAP_BATT_CAP); + full_charge_capacity = *(int *)host_get_memmap(EC_MEMMAP_BATT_LFCC); + permillage = !full_charge_capacity ? 0 : + (1000 * remaining_capacity) / full_charge_capacity; + switch (charge_get_state()) { case PWR_STATE_CHARGE: - cyan_led_set_color_battery(LED_AMBER); + /* Make the percentage approximate to UI shown */ + cyan_led_set_color_battery(permillage < + FULL_BATTERY_PERMILLAGE ? LED_AMBER : LED_BLUE); break; case PWR_STATE_CHARGE_NEAR_FULL: cyan_led_set_color_battery(LED_BLUE); break; case PWR_STATE_DISCHARGE: - cyan_led_set_color_battery(LED_OFF); + /* Less than 3%, blink one second every two seconds */ + if (!chipset_in_state(CHIPSET_STATE_ANY_OFF) && + permillage <= CRITICAL_LOW_BATTERY_PERMILLAGE) + cyan_led_set_color_battery( + (battery_ticks % LED_TOTAL_2SECS_TICKS < + LED_ON_1SEC_TICKS) ? LED_AMBER : LED_OFF); + /* Less than 10%, blink one second every four seconds */ + else if (!chipset_in_state(CHIPSET_STATE_ANY_OFF) && + permillage <= LOW_BATTERY_PERMILLAGE) + cyan_led_set_color_battery( + (battery_ticks % LED_TOTAL_4SECS_TICKS < + LED_ON_1SEC_TICKS) ? LED_AMBER : LED_OFF); + else + cyan_led_set_color_battery(LED_OFF); break; case PWR_STATE_ERROR: cyan_led_set_color_battery( - (battery_ticks % LED_TOTAL_TICKS < LED_ON_TICKS) ? - LED_AMBER : LED_OFF); + (battery_ticks % LED_TOTAL_2SECS_TICKS < + LED_ON_1SEC_TICKS) ? LED_AMBER : LED_OFF); break; case PWR_STATE_IDLE: /* External power connected in IDLE. */ if (chflags & CHARGE_FLAG_FORCE_IDLE) cyan_led_set_color_battery( - (battery_ticks & 0x4) ? LED_BLUE : LED_OFF); + (battery_ticks % LED_TOTAL_4SECS_TICKS < + LED_ON_2SECS_TICKS) ? LED_BLUE : LED_AMBER); else cyan_led_set_color_battery(LED_BLUE); break; |