4230fde3eb
Provide correct active level and pull on all signals. Use init-to-active when configuring antenna switch. Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
/*
|
|
* Copyright (c) 2019 Peter Bigot Consulting, LLC
|
|
* Copyright (c) 2019 Foundries.io
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <init.h>
|
|
#include <drivers/gpio.h>
|
|
#include "board.h"
|
|
|
|
static inline void external_antenna(bool on)
|
|
{
|
|
struct device *ufl_gpio_dev, *pcb_gpio_dev;
|
|
|
|
ufl_gpio_dev = device_get_binding(SKY_UFLn_GPIO_NAME);
|
|
if (!ufl_gpio_dev) {
|
|
return;
|
|
}
|
|
|
|
pcb_gpio_dev = device_get_binding(SKY_PCBn_GPIO_NAME);
|
|
if (!pcb_gpio_dev) {
|
|
return;
|
|
}
|
|
|
|
gpio_pin_configure(ufl_gpio_dev, SKY_UFLn_GPIO_PIN,
|
|
SKY_UFLn_GPIO_FLAGS
|
|
| (on
|
|
? GPIO_OUTPUT_ACTIVE
|
|
: GPIO_OUTPUT_INACTIVE));
|
|
gpio_pin_configure(pcb_gpio_dev, SKY_PCBn_GPIO_PIN,
|
|
SKY_PCBn_GPIO_FLAGS
|
|
| (on
|
|
? GPIO_OUTPUT_INACTIVE
|
|
: GPIO_OUTPUT_ACTIVE));
|
|
}
|
|
|
|
static int board_particle_argon_init(struct device *dev)
|
|
{
|
|
ARG_UNUSED(dev);
|
|
|
|
/*
|
|
* 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 */
|
|
SYS_INIT(board_particle_argon_init, POST_KERNEL,
|
|
CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);
|