44 lines
979 B
C
44 lines
979 B
C
/*
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* Copyright (c) 2016 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr.h>
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#include <device.h>
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#include <devicetree.h>
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#include <drivers/gpio.h>
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/* The devicetree node identifier for the "led0" alias. */
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#define LED_NODE DT_ALIAS(ledblue)
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#if DT_NODE_HAS_STATUS(LED_NODE, okay)
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#define LED DT_GPIO_LABEL(LED_NODE, gpios)
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#define PIN DT_GPIO_PIN(LED_NODE, gpios)
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#define FLAGS DT_GPIO_FLAGS(LED_NODE, gpios)
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#else
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/* A build error here means your board isn't set up to blink an LED. */
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#error "Unsupported board: led devicetree alias is not defined"
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#define LED0 ""
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#define PIN 0
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#define FLAGS 0
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#endif
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static int pwr_led_init(const struct device *dev) {
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int ret;
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dev = device_get_binding(LED);
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if (dev == NULL) {
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return -EIO;
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}
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ret = gpio_pin_configure(dev, PIN, GPIO_OUTPUT | FLAGS);
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if (ret < 0) {
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return -EIO;
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}
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return gpio_pin_set(dev, PIN, true);
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}
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SYS_INIT(pwr_led_init, APPLICATION, CONFIG_APPLICATION_INIT_PRIORITY);
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