Files
OpenCellular/include/power_led.h
Randall Spangler 75acd4065a Clean up power LED state machine on link
The power LED now has its own tick-based handler which knows how to
blink the LED and resend the desired LED state to work around the
flaky 1-wire connection.

Removes a bunch of LED state code from charge_state.c.

No user-visible impact.  Does not need to go into link branch.

BUG=chromium-os:18256
BRANCH=none
TEST=manual

1) Discharge battery to <97%
2) Plug in AC.  LED=yellow
3) 'ectool chargeforceidle 1' from root shell.  LED=blinking green/off.
4) 'ectool chargeforceidle 0' from root shell.  LED=yellow.
5) Wait for battery >= 97% (or 'battfake 98' from EC console).  LED=green.
6) Unplug battery.  LED=red (may take 10 sec).
7) Replug battery.  LED=green.

Change-Id: I999ee3e1abe269bb3f737bbc75e0b872316605ce
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/45469
Reviewed-by: Vic Yang <victoryang@chromium.org>
2013-03-14 15:44:14 -07:00

44 lines
821 B
C

/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* Power LED control for Chrome EC */
#ifndef __CROS_EC_POWER_LED_H
#define __CROS_EC_POWER_LED_H
#include "common.h"
/* Interface for STM32-based boards */
enum powerled_state {
POWERLED_STATE_OFF,
POWERLED_STATE_ON,
POWERLED_STATE_SUSPEND,
POWERLED_STATE_COUNT
};
enum powerled_config {
POWERLED_CONFIG_MANUAL_OFF,
POWERLED_CONFIG_MANUAL_ON,
POWERLED_CONFIG_PWM,
};
#ifdef CONFIG_TASK_POWERLED
/**
* Set the power LED
*
* @param state Target state
*/
void powerled_set_state(enum powerled_state state);
#else
static inline void powerled_set_state(enum powerled_state state) {}
#endif
#endif /* __CROS_EC_POWER_LED_H */