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c2f640c159
This patch adds code to control the power LED. BUG=b:37646390 BRANCH=none TEST=Verify LED turns green, red, amber, off. Verify LED turns green or off when chipset is on or off, respectively. Change-Id: I1d7940d9bb4414d97c541ead802efeb8f279533e Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/486947
112 lines
2.1 KiB
C
112 lines
2.1 KiB
C
/* Copyright 2017 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* Power and battery LED control for Fizz
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*/
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#include "chipset.h"
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#include "console.h"
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#include "ec_commands.h"
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#include "gpio.h"
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#include "hooks.h"
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#include "led_common.h"
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#include "util.h"
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static int led_debug;
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enum led_color {
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LED_OFF = 0,
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LED_RED,
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LED_GREEN,
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LED_AMBER,
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/* Number of colors, not a color itself */
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LED_COLOR_COUNT
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};
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static int led_set_color_power(enum led_color color)
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{
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int green = 0;
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int red = 0;
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switch (color) {
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case LED_OFF:
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break;
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case LED_GREEN:
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green = 1;
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break;
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case LED_RED:
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red = 1;
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break;
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case LED_AMBER:
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green = 1;
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red = 1;
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break;
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default:
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return EC_ERROR_UNKNOWN;
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}
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gpio_set_level(GPIO_PWR_GRN_LED, green);
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gpio_set_level(GPIO_PWR_RED_LED, red);
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return EC_SUCCESS;
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}
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static int led_set_color(enum ec_led_id id, enum led_color color)
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{
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switch (id) {
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case EC_LED_ID_POWER_LED:
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return led_set_color_power(color);
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default:
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return EC_ERROR_UNKNOWN;
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}
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}
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static void led_set_power(void)
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{
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if (chipset_in_state(CHIPSET_STATE_ON)) {
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led_set_color(EC_LED_ID_POWER_LED, LED_GREEN);
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return;
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}
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}
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/**
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* Called by hook task every 250 ms
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*/
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static void led_tick(void)
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{
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if (led_debug)
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return;
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led_set_power();
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}
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DECLARE_HOOK(HOOK_TICK, led_tick, HOOK_PRIO_DEFAULT);
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static int command_led(int argc, char **argv)
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{
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enum ec_led_id id = EC_LED_ID_POWER_LED;
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if (argc < 2)
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return EC_ERROR_PARAM_COUNT;
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if (!strcasecmp(argv[1], "debug")) {
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led_debug ^= 1;
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ccprintf("led_debug %s\n", led_debug ? "on" : "off");
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} else if (!strcasecmp(argv[1], "off")) {
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led_set_color(id, LED_OFF);
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} else if (!strcasecmp(argv[1], "red")) {
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led_set_color(id, LED_RED);
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} else if (!strcasecmp(argv[1], "green")) {
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led_set_color(id, LED_GREEN);
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} else if (!strcasecmp(argv[1], "amber")) {
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led_set_color(id, LED_AMBER);
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} else {
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/* maybe handle charger_discharge_on_ac() too? */
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return EC_ERROR_PARAM1;
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}
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return EC_SUCCESS;
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}
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DECLARE_CONSOLE_COMMAND(led, command_led,
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"[debug|red|green|amber|off]",
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"Turn on/off LED");
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