blob: 244f307972cfdfecf1100e0853e5cceddfaa2719 [file] [log] [blame]
/*
* Copyright (c) 2019 Peter Bigot Consulting, LLC
* Copyright (c) 2019 Foundries.io
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/init.h>
#include <zephyr/drivers/gpio.h>
#define SKY_UFLn_GPIO_SPEC GPIO_DT_SPEC_GET(DT_NODELABEL(sky13351), vctl1_gpios)
#define SKY_PCBn_GPIO_SPEC GPIO_DT_SPEC_GET(DT_NODELABEL(sky13351), vctl2_gpios)
static inline void external_antenna(bool on)
{
struct gpio_dt_spec ufl_gpio = SKY_UFLn_GPIO_SPEC;
struct gpio_dt_spec pcb_gpio = SKY_PCBn_GPIO_SPEC;
if (!gpio_is_ready_dt(&ufl_gpio)) {
return;
}
if (!gpio_is_ready_dt(&pcb_gpio)) {
return;
}
gpio_pin_configure_dt(&ufl_gpio, (on ? GPIO_OUTPUT_ACTIVE : GPIO_OUTPUT_INACTIVE));
gpio_pin_configure_dt(&pcb_gpio, (on ? GPIO_OUTPUT_INACTIVE : GPIO_OUTPUT_ACTIVE));
}
static int board_particle_xenon_init(void)
{
/*
* On power-up the SKY13351 is left uncontrolled, so neither
* PCB nor external antenna is selected. Select the PCB
* antenna.
*/
external_antenna(false);
return 0;
}
/* needs to be done after GPIO driver init, which is at
* POST_KERNEL:KERNEL_INIT_PRIORITY_DEFAULT.
*/
SYS_INIT(board_particle_xenon_init, POST_KERNEL, 99);