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reef: add power led behavior

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There is only one set LED in reef, so with charger attached, LED behave as
charging LED; without charger, as power LED.

BUG=chrome-os-partner:55492
BRANCH=none
TEST=on reef proto, verified power led behavior is correct in s0/s3/g3

Change-Id: If6b83c46fc4b8b455531698177f559ca319d241a
Signed-off-by: li feng <li1.feng@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/366102
Commit-Ready: Kevin K Wong <kevin.k.wong@intel.com>
Tested-by: Li1 Feng <li1.feng@intel.com>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
This commit is contained in:
li feng
2016-08-03 15:56:25 -07:00
committed by chrome-bot
parent 46dc172711
commit a7c6942f73
1 changed files with 57 additions and 12 deletions
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69
board/reef/led.c
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@@ -2,13 +2,14 @@
* 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 Amenia.
* Power and battery LED control for Reef
*/
#include "battery.h"
#include "charge_state.h"
#include "chipset.h"
#include "ec_commands.h"
#include "extpower.h"
#include "gpio.h"
#include "hooks.h"
#include "host_command.h"
@@ -27,7 +28,8 @@
#define LED_ON_2SECS_TICKS 2
const enum ec_led_id supported_led_ids[] = {
EC_LED_ID_BATTERY_LED};
EC_LED_ID_BATTERY_LED,
EC_LED_ID_POWER_LED};
const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids);
@@ -38,7 +40,7 @@ enum led_color {
LED_COLOR_COUNT /* Number of colors, not a color itself */
};
static int bat_led_set_color(enum led_color color)
static int set_color(enum led_color color)
{
switch (color) {
case LED_OFF:
@@ -65,20 +67,27 @@ void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range)
brightness_range[EC_LED_COLOR_AMBER] = 1;
}
static int led_set_color_battery(enum led_color color)
static inline int led_set_color_battery(enum led_color color)
{
return bat_led_set_color(color);
return set_color(color);
}
static inline int led_set_color_power(enum led_color color)
{
return set_color(color);
}
static int 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 = led_set_color_battery(color);
break;
case EC_LED_ID_POWER_LED:
rv = led_set_color_power(color);
break;
default:
return EC_ERROR_UNKNOWN;
}
@@ -97,6 +106,37 @@ int led_set_brightness(enum ec_led_id led_id, const uint8_t *brightness)
return EC_SUCCESS;
}
static void led_set_power(void)
{
static int power_ticks;
static int previous_state_suspend;
power_ticks++;
if (chipset_in_state(CHIPSET_STATE_SUSPEND)) {
/*
* Reset ticks if entering suspend so LED turns amber
* as soon as possible.
*/
if (!previous_state_suspend)
power_ticks = 0;
/* Blink once every four seconds. */
led_set_color_power(
(power_ticks % LED_TOTAL_4SECS_TICKS)
< LED_ON_1SEC_TICKS ? LED_AMBER : LED_OFF);
previous_state_suspend = 1;
return;
}
previous_state_suspend = 0;
if (chipset_in_state(CHIPSET_STATE_ANY_OFF))
led_set_color_power(LED_OFF);
else if (chipset_in_state(CHIPSET_STATE_ON))
led_set_color_power(LED_BLUE);
}
static void led_set_battery(void)
{
static int battery_ticks;
@@ -104,10 +144,6 @@ static void led_set_battery(void)
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:
led_set_color_battery(LED_AMBER);
@@ -150,10 +186,19 @@ static void led_set_battery(void)
}
}
/** * Called by hook task every 1 sec */
/* Called by hook task every 1 sec */
static void led_second(void)
{
if (led_auto_control_is_enabled(EC_LED_ID_BATTERY_LED))
/*
* Reference board only has one LED, so overload it to act as both
* power LED and battery LED.
*/
if (extpower_is_present() &&
led_auto_control_is_enabled(EC_LED_ID_BATTERY_LED))
led_set_battery();
else if (led_auto_control_is_enabled(EC_LED_ID_POWER_LED))
led_set_power();
else
set_color(LED_OFF);
}
DECLARE_HOOK(HOOK_SECOND, led_second, HOOK_PRIO_DEFAULT);