267 lines
7.0 KiB
C
267 lines
7.0 KiB
C
/* Copyright 2015 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.
|
|
*
|
|
* Battery LED and Power LED control for Oak Board.
|
|
*/
|
|
|
|
#include "battery.h"
|
|
#include "charge_state.h"
|
|
#include "chipset.h"
|
|
#include "gpio.h"
|
|
#include "hooks.h"
|
|
#include "led_common.h"
|
|
#include "util.h"
|
|
#include "system.h"
|
|
|
|
const enum ec_led_id supported_led_ids[] = {
|
|
EC_LED_ID_BATTERY_LED
|
|
};
|
|
|
|
const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids);
|
|
|
|
enum led_color {
|
|
BAT_LED_GREEN = 0,
|
|
BAT_LED_ORANGE,
|
|
BAT_LED_RED,
|
|
BAT_LED_AMBER,
|
|
PWR_LED_GREEN,
|
|
PWR_LED_ORANGE,
|
|
LED_COLOR_COUNT /* Number of colors, not a color itself */
|
|
};
|
|
|
|
static int bat_led_set(enum led_color color, int on)
|
|
{
|
|
/* Before Rev5, it's active low; After that, it's active high */
|
|
if (system_get_board_version() < OAK_REV5)
|
|
on = !on;
|
|
|
|
switch (color) {
|
|
case BAT_LED_GREEN:
|
|
gpio_set_level(GPIO_BAT_LED0, on); /* BAT_LED_GREEN */
|
|
break;
|
|
case BAT_LED_ORANGE:
|
|
/* for rev2 or before */
|
|
gpio_set_level(GPIO_BAT_LED1, on); /* BAT_LED_ORANGE */
|
|
break;
|
|
case BAT_LED_RED:
|
|
/* for rev3 or later */
|
|
gpio_set_level(GPIO_BAT_LED1, on); /* BAT_LED_RED */
|
|
break;
|
|
case BAT_LED_AMBER:
|
|
/* for rev3 or later */
|
|
gpio_set_level(GPIO_BAT_LED0, on); /* BAT_LED_AMBER */
|
|
gpio_set_level(GPIO_BAT_LED1, on);
|
|
break;
|
|
case PWR_LED_GREEN:
|
|
gpio_set_level(GPIO_PWR_LED0, on); /* PWR_LED_GREEN */
|
|
break;
|
|
case PWR_LED_ORANGE:
|
|
gpio_set_level(GPIO_PWR_LED1, on); /* PWR_LED_ORANGE */
|
|
break;
|
|
default:
|
|
return EC_ERROR_UNKNOWN;
|
|
}
|
|
return EC_SUCCESS;
|
|
}
|
|
|
|
void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range)
|
|
{
|
|
/* Ignoring led_id as both leds support the same colors */
|
|
brightness_range[EC_LED_COLOR_RED] = 1;
|
|
brightness_range[EC_LED_COLOR_GREEN] = 1;
|
|
brightness_range[EC_LED_COLOR_YELLOW] = 1;
|
|
}
|
|
|
|
int led_set_brightness(enum ec_led_id led_id, const uint8_t *brightness)
|
|
{
|
|
if (EC_LED_ID_BATTERY_LED == led_id) {
|
|
if (brightness[EC_LED_COLOR_GREEN] != 0) {
|
|
bat_led_set(BAT_LED_GREEN, 1);
|
|
bat_led_set(BAT_LED_ORANGE, 0);
|
|
} else if (brightness[EC_LED_COLOR_YELLOW] != 0) {
|
|
bat_led_set(BAT_LED_GREEN, 1);
|
|
bat_led_set(BAT_LED_ORANGE, 1);
|
|
} else if (brightness[EC_LED_COLOR_RED] != 0) {
|
|
bat_led_set(BAT_LED_GREEN, 0);
|
|
bat_led_set(BAT_LED_RED, 1);
|
|
} else {
|
|
bat_led_set(BAT_LED_GREEN, 0);
|
|
bat_led_set(BAT_LED_ORANGE, 0);
|
|
}
|
|
return EC_SUCCESS;
|
|
} else if (EC_LED_ID_POWER_LED == led_id) {
|
|
if (brightness[EC_LED_COLOR_GREEN] != 0) {
|
|
bat_led_set(PWR_LED_GREEN, 1);
|
|
bat_led_set(PWR_LED_ORANGE, 0);
|
|
} else if (brightness[EC_LED_COLOR_YELLOW] != 0) {
|
|
bat_led_set(PWR_LED_GREEN, 1);
|
|
bat_led_set(PWR_LED_ORANGE, 1);
|
|
} else {
|
|
bat_led_set(PWR_LED_GREEN, 0);
|
|
bat_led_set(PWR_LED_ORANGE, 0);
|
|
}
|
|
return EC_SUCCESS;
|
|
} else {
|
|
return EC_ERROR_UNKNOWN;
|
|
}
|
|
}
|
|
|
|
static void oak_led_set_power(int board_version)
|
|
{
|
|
static int power_second;
|
|
|
|
power_second++;
|
|
|
|
switch(board_version) {
|
|
case OAK_REV3:
|
|
case OAK_REV4:
|
|
/*
|
|
* For Rev3 and Rev4 revision.
|
|
* PWR LED behavior:
|
|
* Power on: Green ON
|
|
* Suspend: Orange in breeze mode ( 1 sec on/ 3 sec off)
|
|
* Power off: OFF
|
|
*/
|
|
if (chipset_in_state(CHIPSET_STATE_ANY_OFF)) {
|
|
bat_led_set(PWR_LED_GREEN, 0);
|
|
bat_led_set(PWR_LED_ORANGE, 0);
|
|
} else if (chipset_in_state(CHIPSET_STATE_ON)) {
|
|
bat_led_set(PWR_LED_GREEN, 1);
|
|
bat_led_set(PWR_LED_ORANGE, 0);
|
|
} else if (chipset_in_state(CHIPSET_STATE_SUSPEND)) {
|
|
bat_led_set(PWR_LED_GREEN, 0);
|
|
bat_led_set(PWR_LED_ORANGE,
|
|
(power_second & 3) ? 0 : 1);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
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 */
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Called by hook task every 1 sec
|
|
*/
|
|
static void led_second(void)
|
|
{
|
|
if (led_auto_control_is_enabled(EC_LED_ID_POWER_LED))
|
|
oak_led_set_power(system_get_board_version());
|
|
if (led_auto_control_is_enabled(EC_LED_ID_BATTERY_LED))
|
|
oak_led_set_battery(system_get_board_version());
|
|
}
|
|
DECLARE_HOOK(HOOK_SECOND, led_second, HOOK_PRIO_DEFAULT);
|