60 lines
1.1 KiB
C
60 lines
1.1 KiB
C
/*
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* Copyright (c) 2020 Christian Taedcke
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/init.h>
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#include <zephyr/drivers/gpio.h>
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#include <zephyr/sys/printk.h>
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struct supply_cfg {
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const struct device *gpio;
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gpio_pin_t pin;
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gpio_dt_flags_t flags;
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};
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static int enable_supply(const struct supply_cfg *cfg)
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{
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int rv = -ENODEV;
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if (device_is_ready(cfg->gpio)) {
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gpio_pin_configure(cfg->gpio, cfg->pin,
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GPIO_OUTPUT | cfg->flags);
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gpio_pin_set(cfg->gpio, cfg->pin, 1);
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rv = 0;
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}
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return rv;
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}
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static int efr32mg_sltb004a_init(void)
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{
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struct supply_cfg cfg;
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int rc = 0;
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(void)cfg;
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#define CCS811 DT_NODELABEL(ccs811)
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#if DT_NODE_HAS_STATUS(CCS811, okay)
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cfg = (struct supply_cfg){
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.gpio = DEVICE_DT_GET(DT_GPIO_CTLR(CCS811, supply_gpios)),
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.pin = DT_GPIO_PIN(CCS811, supply_gpios),
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.flags = DT_GPIO_FLAGS(CCS811, supply_gpios),
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};
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/* Enable the CCS811 power */
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rc = enable_supply(&cfg);
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if (rc < 0) {
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printk("CCS811 supply not enabled: %d\n", rc);
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}
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#endif
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return rc;
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}
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/* needs to be done after GPIO driver init */
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SYS_INIT(efr32mg_sltb004a_init, POST_KERNEL,
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CONFIG_KERNEL_INIT_PRIORITY_DEVICE);
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