static void kevin_led_set_power_battery(void)
{
static int power_ticks;
if (chipset_in_state(CHIPSET_STATE_ON)) {
set_color(LED_BLUE);
return;
}
/* CHIPSET_STATE_OFF */
switch (charge_get_state()) {
case PWR_STATE_DISCHARGE:
set_color(LED_OFF);
break;
case PWR_STATE_CHARGE:
set_color(LED_RED);
break;
case PWR_STATE_ERROR:
power_ticks++;
set_color(((power_ticks % LED_TOTAL_TICKS)
< LED_ON_TICKS) ? LED_RED : LED_GREEN);
break;
case PWR_STATE_CHARGE_NEAR_FULL:
case PWR_STATE_IDLE: /* External power connected in IDLE. */
set_color(LED_GREEN);
break;
default:
set_color(LED_RED);
break;
}
if ((charge_get_state()) != PWR_STATE_ERROR)
power_ticks = 0;
}
static int wait_charging_state(void)
{
enum charge_state state;
task_wake(TASK_ID_CHARGER);
msleep(WAIT_CHARGER_TASK);
state = charge_get_state();
ccprintf("[CHARGING TEST] state = %d\n", state);
return state;
}
static void onewire_led_tick(void)
{
static enum led_color current_color = LED_COLOR_COUNT;
static int tick_count;
enum led_color new_color = LED_OFF;
uint32_t chflags = charge_get_flags();
tick_count++;
if (!(chflags & CHARGE_FLAG_EXTERNAL_POWER)) {
/* AC isn't present, so the power LED on the AC plug is off */
current_color = LED_OFF;
return;
}
/* Translate charge state to LED color */
switch (charge_get_state()) {
case PWR_STATE_IDLE:
if (chflags & CHARGE_FLAG_FORCE_IDLE)
new_color = (tick_count & 1) ? LED_GREEN : LED_OFF;
else
new_color = LED_GREEN;
break;
case PWR_STATE_CHARGE:
new_color = LED_YELLOW;
break;
case PWR_STATE_CHARGE_NEAR_FULL:
new_color = LED_GREEN;
break;
case PWR_STATE_ERROR:
new_color = LED_RED;
break;
default:
/* Other states don't change LED color */
break;
}
/*
* The power adapter on link can partially unplug and lose its LED
* state. There's no way to detect this, so just assume it forgets its
* state every 10 seconds.
*/
if (!(tick_count % 10))
current_color = LED_COLOR_COUNT;
/* If current color is still correct, leave now */
if (new_color == current_color)
return;
/* Update LED */
if (!led_set(new_color))
current_color = new_color;
}
int charge_keep_power_off(void)
{
int charge;
if (BATTERY_AP_OFF_LEVEL == 0)
return 0;
if (battery_remaining_capacity(&charge))
return charge_get_state() != PWR_STATE_ERROR;
return charge <= BATTERY_AP_OFF_LEVEL;
}
static void glados_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:
glados_led_set_color_battery(LED_AMBER);
break;
case PWR_STATE_DISCHARGE:
/* Less than 3%, blink one second every two second */
if (charge_get_percent() < CRITICAL_LOW_BATTERY_PERCENTAGE)
glados_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 (charge_get_percent() < LOW_BATTERY_PERCENTAGE)
glados_led_set_color_battery(
(battery_ticks % LED_TOTAL_4SECS_TICKS <
LED_ON_1SEC_TICKS) ? LED_AMBER : LED_OFF);
else
glados_led_set_color_battery(LED_OFF);
break;
case PWR_STATE_ERROR:
glados_led_set_color_battery(
(battery_ticks % LED_TOTAL_2SECS_TICKS <
LED_ON_1SEC_TICKS) ? LED_RED : LED_OFF);
break;
case PWR_STATE_CHARGE_NEAR_FULL:
glados_led_set_color_battery(LED_GREEN);
break;
case PWR_STATE_IDLE: /* External power connected in IDLE */
if (chflags & CHARGE_FLAG_FORCE_IDLE)
glados_led_set_color_battery(
(battery_ticks % LED_TOTAL_4SECS_TICKS <
LED_ON_2SECS_TICKS) ? LED_GREEN : LED_AMBER);
else
glados_led_set_color_battery(LED_GREEN);
break;
default:
/* Other states don't alter LED behavior */
break;
}
}
static void big_led_set_battery(void)
{
static int battery_second;
uint32_t chflags = charge_get_flags();
battery_second++;
/* BAT LED behavior:
* Fully charged / idle: Blue
* Force idle (for factory): 2 secs of blue, 2 secs of yellow
* Under charging: Orange
* Battery low (10%): Orange in breeze mode (1 sec on, 3 sec off)
* Battery critical low (less than 3%) or abnormal battery
* situation: Orange in blinking mode (1 sec on, 1 sec off)
* Using battery or not connected to AC power: OFF
*/
switch (charge_get_state()) {
case PWR_STATE_CHARGE:
bat_led_set_color(LED_ORANGE);
break;
case PWR_STATE_DISCHARGE:
if (charge_get_percent() < 3)
bat_led_set_color((battery_second & 1)
? LED_OFF : LED_ORANGE);
else if (charge_get_percent() < 10)
bat_led_set_color((battery_second & 3)
? LED_OFF : LED_ORANGE);
else
bat_led_set_color(LED_OFF);
break;
case PWR_STATE_ERROR:
bat_led_set_color((battery_second & 1) ? LED_OFF : LED_ORANGE);
break;
case PWR_STATE_CHARGE_NEAR_FULL:
bat_led_set_color(LED_BLUE);
break;
case PWR_STATE_IDLE: /* External power connected in IDLE. */
if (chflags & CHARGE_FLAG_FORCE_IDLE)
bat_led_set_color(
(battery_second & 0x2) ? LED_BLUE : LED_ORANGE);
else
bat_led_set_color(LED_BLUE);
break;
default:
/* Other states don't alter LED behavior */
break;
}
}
static void std_led_set_battery(void)
{
static int battery_second;
uint32_t chflags = charge_get_flags();
battery_second++;
/* BAT LED behavior:
* Same as the chromeos spec
* Green/Amber for CHARGE_FLAG_FORCE_IDLE
*/
switch (charge_get_state()) {
case PWR_STATE_CHARGE:
bat_led_set_color(LED_AMBER);
break;
case PWR_STATE_DISCHARGE:
if (charge_get_percent() < 3)
bat_led_set_color((battery_second & 1)
? LED_OFF : LED_AMBER);
else if (charge_get_percent() < 10)
bat_led_set_color((battery_second & 3)
? LED_OFF : LED_AMBER);
else
bat_led_set_color(LED_OFF);
break;
case PWR_STATE_ERROR:
bat_led_set_color((battery_second & 1) ? LED_OFF : LED_RED);
break;
case PWR_STATE_CHARGE_NEAR_FULL:
bat_led_set_color(LED_GREEN);
break;
case PWR_STATE_IDLE: /* External power connected in IDLE. */
if (chflags & CHARGE_FLAG_FORCE_IDLE)
bat_led_set_color(
(battery_second & 0x2) ? LED_GREEN : LED_AMBER);
else
bat_led_set_color(LED_GREEN);
break;
default:
/* Other states don't alter LED behavior */
break;
}
}
/**
* Called by hook task every 250 ms
*/
static void led_tick(void)
{
static unsigned ticks;
int chstate = charge_get_state();
ticks++;
/* If we don't control the LED, nothing to do */
if (!led_auto_control_is_enabled(EC_LED_ID_BATTERY_LED))
return;
/* If charging error, blink orange, 25% duty cycle, 4 sec period */
if (chstate == PWR_STATE_ERROR) {
set_color((ticks % 16) < 4 ? LED_ORANGE : LED_OFF);
return;
}
/* If charge-force-idle, blink green, 50% duty cycle, 2 sec period */
if (chstate == PWR_STATE_IDLE &&
(charge_get_flags() & CHARGE_FLAG_FORCE_IDLE)) {
set_color((ticks & 0x4) ? LED_GREEN : LED_OFF);
return;
}
/* If the system is charging, solid orange */
if (chstate == PWR_STATE_CHARGE) {
set_color(LED_ORANGE);
return;
}
/* If AC connected and fully charged (or close to it), solid green */
if (chstate == PWR_STATE_CHARGE_NEAR_FULL ||
chstate == PWR_STATE_IDLE) {
set_color(LED_GREEN);
return;
}
/* Otherwise, system is off and AC not connected, LED off */
set_color(LED_OFF);
}
static void jerry_led_set_battery(void)
{
static int battery_second;
battery_second++;
/* BAT LED behavior:
* Fully charged / idle: Off
* Under charging: Orange
* Battery low (10%): Orange in breeze mode (1 sec on, 3 sec off)
* Battery critical low (less than 3%) or abnormal battery
* situation: Orange in blinking mode (1 sec on, 1 sec off)
* Using battery or not connected to AC power: OFF
*/
switch (charge_get_state()) {
case PWR_STATE_CHARGE:
bat_led_set(LED_ORANGE, 1);
break;
case PWR_STATE_CHARGE_NEAR_FULL:
bat_led_set(LED_ORANGE, 1);
break;
case PWR_STATE_DISCHARGE:
if (charge_get_percent() < 3)
bat_led_set(LED_ORANGE, (battery_second & 1) ? 0 : 1);
else if (charge_get_percent() < 10)
bat_led_set(LED_ORANGE, (battery_second & 3) ? 0 : 1);
else
bat_led_set(LED_ORANGE, 0);
break;
case PWR_STATE_ERROR:
bat_led_set(LED_ORANGE, (battery_second & 1) ? 0 : 1);
break;
case PWR_STATE_IDLE: /* External power connected in IDLE. */
bat_led_set(LED_ORANGE, 0);
break;
default:
/* Other states don't alter LED behavior */
break;
}
}
static int test_external_funcs(void)
{
int rv, temp;
uint32_t flags;
int state;
/* Connect the AC */
test_setup(1);
flags = charge_get_flags();
TEST_ASSERT(flags & CHARGE_FLAG_EXTERNAL_POWER);
TEST_ASSERT(!(flags & CHARGE_FLAG_FORCE_IDLE));
/* Invalid or do-nothing commands first */
UART_INJECT("chg\n");
state = wait_charging_state();
TEST_ASSERT(state == PWR_STATE_CHARGE);
flags = charge_get_flags();
TEST_ASSERT(flags & CHARGE_FLAG_EXTERNAL_POWER);
TEST_ASSERT(!(flags & CHARGE_FLAG_FORCE_IDLE));
UART_INJECT("chg blahblah\n");
state = wait_charging_state();
TEST_ASSERT(state == PWR_STATE_CHARGE);
flags = charge_get_flags();
TEST_ASSERT(flags & CHARGE_FLAG_EXTERNAL_POWER);
TEST_ASSERT(!(flags & CHARGE_FLAG_FORCE_IDLE));
UART_INJECT("chg idle\n");
state = wait_charging_state();
TEST_ASSERT(state == PWR_STATE_CHARGE);
flags = charge_get_flags();
TEST_ASSERT(flags & CHARGE_FLAG_EXTERNAL_POWER);
TEST_ASSERT(!(flags & CHARGE_FLAG_FORCE_IDLE));
UART_INJECT("chg idle blargh\n");
state = wait_charging_state();
TEST_ASSERT(state == PWR_STATE_CHARGE);
flags = charge_get_flags();
TEST_ASSERT(flags & CHARGE_FLAG_EXTERNAL_POWER);
TEST_ASSERT(!(flags & CHARGE_FLAG_FORCE_IDLE));
/* Now let's force idle on and off */
UART_INJECT("chg idle on\n");
state = wait_charging_state();
TEST_ASSERT(state == PWR_STATE_IDLE);
flags = charge_get_flags();
TEST_ASSERT(flags & CHARGE_FLAG_EXTERNAL_POWER);
TEST_ASSERT(flags & CHARGE_FLAG_FORCE_IDLE);
UART_INJECT("chg idle off\n");
wait_charging_state();
state = wait_charging_state();
TEST_ASSERT(state == PWR_STATE_CHARGE);
flags = charge_get_flags();
TEST_ASSERT(flags & CHARGE_FLAG_EXTERNAL_POWER);
TEST_ASSERT(!(flags & CHARGE_FLAG_FORCE_IDLE));
/* and the rest */
TEST_ASSERT(charge_get_state() == PWR_STATE_CHARGE);
TEST_ASSERT(!charge_want_shutdown());
TEST_ASSERT(charge_get_percent() == 50);
temp = 0;
rv = charge_temp_sensor_get_val(0, &temp);
TEST_ASSERT(rv == EC_SUCCESS);
TEST_ASSERT(K_TO_C(temp) == 25);
return EC_SUCCESS;
}
static void oak_led_set_battery(int board_version)
{
static int battery_second;
battery_second++;
switch(board_version) {
case OAK_REV3:
case OAK_REV4:
/*
* For Rev3 and Rev4 revision:
* BAT LED behavior:
* - Fully charged / idle: Green ON
* - Charging: Amber ON (BAT_LED_RED && BAT_LED_GREEN)
* - Battery discharging capacity<10%, red blink
* - Battery error: Red ON
*/
switch (charge_get_state()) {
case PWR_STATE_CHARGE:
bat_led_set(BAT_LED_AMBER, 1);
break;
case PWR_STATE_CHARGE_NEAR_FULL:
bat_led_set(BAT_LED_GREEN, 1);
bat_led_set(BAT_LED_RED, 0);
break;
case PWR_STATE_DISCHARGE:
bat_led_set(BAT_LED_GREEN, 0);
if (charge_get_percent() < 3)
bat_led_set(BAT_LED_RED,
(battery_second & 1) ? 0 : 1);
else if (charge_get_percent() < 10)
bat_led_set(BAT_LED_RED,
(battery_second & 3) ? 0 : 1);
else
bat_led_set(BAT_LED_RED, 0);
break;
case PWR_STATE_ERROR:
bat_led_set(BAT_LED_RED, 1);
break;
case PWR_STATE_IDLE: /* Ext. power connected in IDLE. */
bat_led_set(BAT_LED_GREEN, 1);
bat_led_set(BAT_LED_RED, 0);
break;
default:
/* Other states don't alter LED behavior */
break;
}
break; /* End of case OAK_REV3 & OAK_REV4 */
default:
/*
* Put power control here since we are using the "battery" LED.
* This allows LED autocontrol to be turned off by cmd during factory test.
*
* PWR LED behavior:
* Power on: Green
* Suspend: Green in breeze mode ( 1 sec on/ 3 sec off)
* Power off: OFF
*/
if (chipset_in_state(CHIPSET_STATE_ANY_OFF))
bat_led_set(BAT_LED_GREEN, 0);
else if (chipset_in_state(CHIPSET_STATE_ON))
bat_led_set(BAT_LED_GREEN, 1);
else if (chipset_in_state(CHIPSET_STATE_SUSPEND)) {
int cycle_time = 4;
/* Oak rev5 with GlaDOS ID has a extremely power
* comsuming LED. Increase LED blink cycle time to reduce
* S3 power comsuption. */
if (board_version >= OAK_REV5)
cycle_time = 10;
bat_led_set(BAT_LED_GREEN,
(battery_second % cycle_time) ? 0 : 1);
}
/* BAT LED behavior:
* Fully charged / idle: Off
* Under charging: Orange
* Bat. low (10%): Orange in breeze mode (1s on, 3s off)
* Bat. critical low (less than 3%) or abnormal battery
* situation: Orange in blinking mode (1s on, 1s off)
* Using battery or not connected to AC power: OFF
*/
switch (charge_get_state()) {
case PWR_STATE_CHARGE:
bat_led_set(BAT_LED_ORANGE, 1);
break;
case PWR_STATE_CHARGE_NEAR_FULL:
bat_led_set(BAT_LED_ORANGE, 1);
break;
case PWR_STATE_DISCHARGE:
if (charge_get_percent() < 3)
bat_led_set(BAT_LED_ORANGE,
(battery_second & 1) ? 0 : 1);
else if (charge_get_percent() < 10)
bat_led_set(BAT_LED_ORANGE,
(battery_second & 3) ? 0 : 1);
else
bat_led_set(BAT_LED_ORANGE, 0);
break;
case PWR_STATE_ERROR:
bat_led_set(BAT_LED_ORANGE,
(battery_second & 1) ? 0 : 1);
break;
case PWR_STATE_IDLE: /* Ext. power connected in IDLE. */
bat_led_set(BAT_LED_ORANGE, 0);
break;
default:
/* Other states don't alter LED behavior */
break;
}
break; /* End of default */
}
}
/**
* Power button state machine.
*
* @param tnow Current time from usec counter
*/
static void state_machine(uint64_t tnow)
{
/* Not the time to move onto next state */
if (tnow < tnext_state)
return;
/* States last forever unless otherwise specified */
tnext_state = 0;
switch (pwrbtn_state) {
case PWRBTN_STATE_PRESSED:
if (chipset_in_state(CHIPSET_STATE_ANY_OFF)) {
/*
* Chipset is off, so wake the chipset and send it a
* long enough pulse to wake up. After that we'll
* reflect the true power button state. If we don't
* stretch the pulse here, the user may release the
* power button before the chipset finishes waking from
* hard off state.
*/
chipset_exit_hard_off();
tnext_state = tnow + PWRBTN_INITIAL_US;
pwrbtn_state = PWRBTN_STATE_WAS_OFF;
} else {
/* Chipset is on, so send the chipset a pulse */
tnext_state = tnow + PWRBTN_DELAY_T0;
pwrbtn_state = PWRBTN_STATE_T0;
}
set_pwrbtn_to_pch(0);
break;
case PWRBTN_STATE_T0:
tnext_state = tnow + PWRBTN_DELAY_T1;
pwrbtn_state = PWRBTN_STATE_T1;
set_pwrbtn_to_pch(1);
break;
case PWRBTN_STATE_T1:
/*
* If the chipset is already off, don't tell it the power
* button is down; it'll just cause the chipset to turn on
* again.
*/
if (chipset_in_state(CHIPSET_STATE_ANY_OFF))
CPRINTS("PB chipset already off");
else
set_pwrbtn_to_pch(0);
pwrbtn_state = PWRBTN_STATE_HELD;
break;
case PWRBTN_STATE_RELEASED:
case PWRBTN_STATE_LID_OPEN:
set_pwrbtn_to_pch(1);
pwrbtn_state = PWRBTN_STATE_IDLE;
break;
case PWRBTN_STATE_INIT_ON:
/*
* Don't do anything until the charger knows the battery level.
* Otherwise we could power on the AP only to shut it right
* back down due to insufficient battery.
*/
#ifdef HAS_TASK_CHARGER
if (charge_get_state() == PWR_STATE_INIT)
break;
#endif
/*
* Power the system on if possible. Gating due to insufficient
* battery is handled inside set_pwrbtn_to_pch().
*/
chipset_exit_hard_off();
set_pwrbtn_to_pch(0);
tnext_state = get_time().val + PWRBTN_INITIAL_US;
if (power_button_is_pressed()) {
if (system_get_reset_flags() & RESET_FLAG_RESET_PIN)
pwrbtn_state = PWRBTN_STATE_BOOT_KB_RESET;
else
pwrbtn_state = PWRBTN_STATE_WAS_OFF;
} else {
pwrbtn_state = PWRBTN_STATE_RELEASED;
}
break;
case PWRBTN_STATE_BOOT_KB_RESET:
/* Initial forced pulse is done. Ignore the actual power
* button until it's released, so that holding down the
* recovery combination doesn't cause the chipset to shut back
* down. */
set_pwrbtn_to_pch(1);
if (power_button_is_pressed())
pwrbtn_state = PWRBTN_STATE_EAT_RELEASE;
else
pwrbtn_state = PWRBTN_STATE_IDLE;
break;
case PWRBTN_STATE_WAS_OFF:
/* Done stretching initial power button signal, so show the
* true power button state to the PCH. */
if (power_button_is_pressed()) {
/* User is still holding the power button */
pwrbtn_state = PWRBTN_STATE_HELD;
} else {
/* Stop stretching the power button press */
power_button_released(tnow);
}
break;
case PWRBTN_STATE_IDLE:
case PWRBTN_STATE_HELD:
case PWRBTN_STATE_EAT_RELEASE:
/* Do nothing */
break;
}
}
int charge_want_shutdown(void)
{
return (charge_get_state() == PWR_STATE_DISCHARGE) &&
charge_get_percent() < BATTERY_LEVEL_SHUTDOWN;
}
static void led_set_battery(void)
{
static int battery_ticks;
static int suspend_ticks;
static int previous_state_suspend;
uint32_t chflags = charge_get_flags();
battery_ticks++;
suspend_ticks++;
switch (charge_get_state()) {
case PWR_STATE_CHARGE:
led_set_color_battery(LED_AMBER);
break;
case PWR_STATE_DISCHARGE:
/* Less than 3%, blink one second every two second */
if (!chipset_in_state(CHIPSET_STATE_ANY_OFF) &&
charge_get_percent() < CRITICAL_LOW_BATTERY_PERCENTAGE)
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) &&
charge_get_percent() < LOW_BATTERY_PERCENTAGE)
led_set_color_battery(
(battery_ticks % LED_TOTAL_4SECS_TICKS <
LED_ON_1SEC_TICKS) ? LED_AMBER : LED_OFF);
else {
if (chipset_in_state(CHIPSET_STATE_SUSPEND
| CHIPSET_STATE_STANDBY)) {
if (!previous_state_suspend)
suspend_ticks = 0;
/* Blink once every four seconds. */
led_set_color_battery(
(suspend_ticks % LED_TOTAL_4SECS_TICKS)
< LED_ON_1SEC_TICKS ?
LED_AMBER : LED_OFF);
previous_state_suspend = 1;
return;
}
if (chipset_in_state(CHIPSET_STATE_ON))
led_set_color_battery(LED_BLUE);
else
led_set_color_battery(LED_OFF);
}
break;
case PWR_STATE_ERROR:
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:
led_set_color_battery(LED_BLUE);
break;
case PWR_STATE_IDLE: /* External power connected in IDLE */
if (chflags & CHARGE_FLAG_FORCE_IDLE)
led_set_color_battery(
(battery_ticks % LED_TOTAL_4SECS_TICKS <
LED_ON_2SECS_TICKS) ? LED_AMBER : LED_BLUE);
else
led_set_color_battery(LED_BLUE);
break;
default:
/* Other states don't alter LED behavior */
break;
}
previous_state_suspend = 0;
}