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Elm: update LED control

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following Change#227416 to meet client's spec.

BUG=chrome-os-partner:54263
BRANCH=master
TEST=`make -j BOARD=elm`, check factory force IDLE, works good

Change-Id: I1f0abdcbd56eeab379a6258869ccc133ff80736d
Signed-off-by: Ryan Zhang <Ryan.Zhang@quantatw.com>
Reviewed-on: https://chromium-review.googlesource.com/353521
Reviewed-by: Shawn N <shawnn@chromium.org>
This commit is contained in:
Ryan Zhang
2016-06-17 15:28:05 +08:00
committed by chrome-bot
parent 0be630aa26
commit f7d6d88199
1 changed files with 39 additions and 9 deletions
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48
board/elm/led.c
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@@ -10,10 +10,15 @@
#include "chipset.h"
#include "gpio.h"
#include "hooks.h"
#include "host_command.h"
#include "led_common.h"
#include "util.h"
#include "system.h"
#define CRITICAL_LOW_BATTERY_PERMILLAGE 71
#define LOW_BATTERY_PERMILLAGE 137
#define FULL_BATTERY_PERMILLAGE 937
const enum ec_led_id supported_led_ids[] = {
EC_LED_ID_BATTERY_LED,
EC_LED_ID_POWER_LED
@@ -115,15 +120,33 @@ static void elm_led_set_battery(void)
{
/*
* BAT LED behavior:
* - Fully charged / idle: Blue ON
* - Fully charged / normal idle: Blue ON
* - Charging: Orange ON
* - Battery discharging capacity<10%, Orange blink
* - Battery error: Orange blink
* - Battery discharging capacity<10%, Orange blink(1:3)
* < 3%, Orange blink(1:1)
* - Battery error: Orange blink(1:1)
* - Factory force idle: Blue 2 sec, Orange 2 sec
*/
uint32_t charge_flags = charge_get_flags();
int remaining_capacity;
int full_charge_capacity;
int permillage;
/* Make the percentage approximate to UI shown */
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:
bat_led_set(BAT_LED_BLUE, 0);
bat_led_set(BAT_LED_ORANGE, 1);
if (permillage < FULL_BATTERY_PERMILLAGE) {
bat_led_set(BAT_LED_BLUE, 0);
bat_led_set(BAT_LED_ORANGE, 1);
} else {
bat_led_set(BAT_LED_BLUE, 1);
bat_led_set(BAT_LED_ORANGE, 0);
}
break;
case PWR_STATE_CHARGE_NEAR_FULL:
bat_led_set(BAT_LED_BLUE, 1);
@@ -131,10 +154,12 @@ static void elm_led_set_battery(void)
break;
case PWR_STATE_DISCHARGE:
bat_led_set(BAT_LED_BLUE, 0);
if (charge_get_percent() < 3)
if (!chipset_in_state(CHIPSET_STATE_ANY_OFF) &&
permillage <= CRITICAL_LOW_BATTERY_PERMILLAGE)
bat_led_set(BAT_LED_ORANGE,
(blink_second & 1) ? 0 : 1);
else if (charge_get_percent() < 10)
else if (!chipset_in_state(CHIPSET_STATE_ANY_OFF) &&
permillage <= LOW_BATTERY_PERMILLAGE)
bat_led_set(BAT_LED_ORANGE,
(blink_second & 3) ? 0 : 1);
else
@@ -145,8 +170,13 @@ static void elm_led_set_battery(void)
bat_led_set(BAT_LED_ORANGE, (blink_second & 1) ? 0 : 1);
break;
case PWR_STATE_IDLE: /* Ext. power connected in IDLE. */
bat_led_set(BAT_LED_BLUE, 1);
bat_led_set(BAT_LED_ORANGE, 0);
if (charge_flags & CHARGE_FLAG_FORCE_IDLE) {
bat_led_set(BAT_LED_BLUE, (blink_second & 2) ? 0 : 1);
bat_led_set(BAT_LED_ORANGE, (blink_second & 2) ? 1 : 0);
} else {
bat_led_set(BAT_LED_BLUE, 1);
bat_led_set(BAT_LED_ORANGE, 0);
}
break;
default:
/* Other states don't alter LED behavior */