34 lines
818 B
C
34 lines
818 B
C
/*
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* Copyright (c) 2021 Instituto de Pesquisas Eldorado (eldorado.org.br)
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/drivers/gpio.h>
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#define VEXT_PIN DT_GPIO_PIN(DT_NODELABEL(vext), gpios)
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#define OLED_RST DT_GPIO_PIN(DT_NODELABEL(oledrst), gpios)
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static int board_heltec_wifi_lora32_v2_init(const struct device *dev)
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{
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ARG_UNUSED(dev);
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const struct device *gpio;
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gpio = DEVICE_DT_GET(DT_NODELABEL(gpio0));
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if (!device_is_ready(gpio)) {
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return -ENODEV;
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}
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/* turns external VCC on */
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gpio_pin_configure(gpio, VEXT_PIN, GPIO_OUTPUT);
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gpio_pin_set_raw(gpio, VEXT_PIN, 0);
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/* turns OLED on */
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gpio_pin_configure(gpio, OLED_RST, GPIO_OUTPUT);
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gpio_pin_set_raw(gpio, OLED_RST, 1);
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return 0;
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}
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SYS_INIT(board_heltec_wifi_lora32_v2_init, PRE_KERNEL_2, CONFIG_GPIO_INIT_PRIORITY);
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