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