summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--common/charge_state.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/common/charge_state.c b/common/charge_state.c
index 130f2a8d3a..f1e99eb022 100644
--- a/common/charge_state.c
+++ b/common/charge_state.c
@@ -30,6 +30,9 @@
/* Voltage debounce time */
#define DEBOUNCE_TIME (10 * SECOND)
+/* Time period between setting power LED */
+#define SET_LED_PERIOD (10 * SECOND)
+
static const char * const state_name[] = POWER_STATE_NAME_TABLE;
static int state_machine_force_idle = 0;
@@ -548,6 +551,7 @@ void charge_state_machine_task(void)
uint8_t batt_flags;
enum powerled_color led_color = POWERLED_OFF;
int rv_setled = 0;
+ uint64_t last_setled_time = 0;
ctx->prev.state = PWR_STATE_INIT;
ctx->curr.state = PWR_STATE_INIT;
@@ -614,6 +618,7 @@ void charge_state_machine_task(void)
/* Charge done */
led_color = POWERLED_GREEN;
rv_setled = powerled_set(POWERLED_GREEN);
+ last_setled_time = get_time().val;
sleep_usec = POLL_PERIOD_LONG;
break;
@@ -633,6 +638,7 @@ void charge_state_machine_task(void)
/* Charging */
led_color = POWERLED_YELLOW;
rv_setled = powerled_set(POWERLED_YELLOW);
+ last_setled_time = get_time().val;
sleep_usec = POLL_PERIOD_CHARGE;
break;
@@ -640,6 +646,7 @@ void charge_state_machine_task(void)
/* Error */
led_color = POWERLED_RED;
rv_setled = powerled_set(POWERLED_RED);
+ last_setled_time = get_time().val;
sleep_usec = POLL_PERIOD_CHARGE;
break;
@@ -647,8 +654,16 @@ void charge_state_machine_task(void)
/* Don't change sleep duration */
if (state_machine_force_idle)
powerled_set(force_idle_led_blink());
- else if (rv_setled)
+ else if (rv_setled || get_time().val - last_setled_time
+ > SET_LED_PERIOD) {
+ /*
+ * It is possible to make power LED go off
+ * without disconnecting AC. Therefore we
+ * need to reset power LED periodically.
+ */
rv_setled = powerled_set(led_color);
+ last_setled_time = get_time().val;
+ }
break;
default:
/* Other state; poll quickly and hope it goes away */