57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
/*
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* Copyright (c) 2019 Peter Bigot Consulting, LLC
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* Copyright (c) 2019 Foundries.io
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <init.h>
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#include <drivers/gpio.h>
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#include "board.h"
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static inline void external_antenna(bool on)
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{
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struct device *ufl_gpio_dev, *pcb_gpio_dev;
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ufl_gpio_dev = device_get_binding(SKY_UFLn_GPIO_NAME);
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if (!ufl_gpio_dev) {
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return;
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}
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pcb_gpio_dev = device_get_binding(SKY_PCBn_GPIO_NAME);
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if (!pcb_gpio_dev) {
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return;
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}
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gpio_pin_configure(ufl_gpio_dev, SKY_UFLn_GPIO_PIN,
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GPIO_DIR_OUT | SKY_UFLn_GPIO_FLAGS);
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gpio_pin_configure(pcb_gpio_dev, SKY_PCBn_GPIO_PIN,
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GPIO_DIR_OUT | SKY_PCBn_GPIO_FLAGS);
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if (on) {
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gpio_pin_write(ufl_gpio_dev, SKY_UFLn_GPIO_PIN, 1);
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gpio_pin_write(pcb_gpio_dev, SKY_PCBn_GPIO_PIN, 0);
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} else {
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gpio_pin_write(ufl_gpio_dev, SKY_UFLn_GPIO_PIN, 0);
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gpio_pin_write(pcb_gpio_dev, SKY_PCBn_GPIO_PIN, 1);
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}
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}
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static int board_particle_argon_init(struct device *dev)
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{
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ARG_UNUSED(dev);
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/*
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* On power-up the SKY13351 is left uncontrolled, so neither
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* PCB nor external antenna is selected. Select the PCB
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* antenna.
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*/
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external_antenna(false);
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return 0;
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}
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/* needs to be done after GPIO driver init */
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SYS_INIT(board_particle_argon_init, POST_KERNEL,
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CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);
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