blob: c9b16965bc799d8b42c9085777b554a23fa93e40 [file] [log] [blame]
/*
* Copyright (c) 2019 Manivannan Sadhasivam
* Copyright (c) 2020 Andreas Sandberg
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/drivers/gpio.h>
#include <zephyr/kernel.h>
#include "sx126x_common.h"
#include <zephyr/logging/log.h>
LOG_MODULE_DECLARE(sx126x, CONFIG_LORA_LOG_LEVEL);
static const struct gpio_dt_spec sx126x_gpio_reset = GPIO_DT_SPEC_INST_GET(
0, reset_gpios);
static const struct gpio_dt_spec sx126x_gpio_busy = GPIO_DT_SPEC_INST_GET(
0, busy_gpios);
static const struct gpio_dt_spec sx126x_gpio_dio1 = GPIO_DT_SPEC_INST_GET(
0, dio1_gpios);
void sx126x_reset(struct sx126x_data *dev_data)
{
gpio_pin_set_dt(&sx126x_gpio_reset, 1);
k_sleep(K_MSEC(20));
gpio_pin_set_dt(&sx126x_gpio_reset, 0);
k_sleep(K_MSEC(10));
}
bool sx126x_is_busy(struct sx126x_data *dev_data)
{
return gpio_pin_get_dt(&sx126x_gpio_busy);
}
uint32_t sx126x_get_dio1_pin_state(struct sx126x_data *dev_data)
{
return gpio_pin_get_dt(&sx126x_gpio_dio1) > 0 ? 1U : 0U;
}
void sx126x_dio1_irq_enable(struct sx126x_data *dev_data)
{
gpio_pin_interrupt_configure_dt(&sx126x_gpio_dio1,
GPIO_INT_EDGE_TO_ACTIVE);
}
void sx126x_dio1_irq_disable(struct sx126x_data *dev_data)
{
gpio_pin_interrupt_configure_dt(&sx126x_gpio_dio1,
GPIO_INT_DISABLE);
}
static void sx126x_dio1_irq_callback(const struct device *dev,
struct gpio_callback *cb, uint32_t pins)
{
struct sx126x_data *dev_data = CONTAINER_OF(cb, struct sx126x_data,
dio1_irq_callback);
if (pins & BIT(sx126x_gpio_dio1.pin)) {
k_work_submit(&dev_data->dio1_irq_work);
}
}
void sx126x_set_tx_params(int8_t power, RadioRampTimes_t ramp_time)
{
SX126xSetTxParams(power, ramp_time);
}
int sx126x_variant_init(const struct device *dev)
{
struct sx126x_data *dev_data = dev->data;
if (gpio_pin_configure_dt(&sx126x_gpio_reset, GPIO_OUTPUT_ACTIVE) ||
gpio_pin_configure_dt(&sx126x_gpio_busy, GPIO_INPUT) ||
gpio_pin_configure_dt(&sx126x_gpio_dio1, GPIO_INPUT)) {
LOG_ERR("GPIO configuration failed.");
return -EIO;
}
gpio_init_callback(&dev_data->dio1_irq_callback,
sx126x_dio1_irq_callback, BIT(sx126x_gpio_dio1.pin));
if (gpio_add_callback(sx126x_gpio_dio1.port,
&dev_data->dio1_irq_callback) < 0) {
LOG_ERR("Could not set GPIO callback for DIO1 interrupt.");
return -EIO;
}
return 0;
}