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zephyr/drivers/lora/rylrxxx.c

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/*
* Copyright (C) 2024 David Ullmann
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define DT_DRV_COMPAT reyax_rylrxxx
#include <zephyr/logging/log.h>
#include <zephyr/drivers/uart.h>
#include <zephyr/drivers/gpio.h>
#include <zephyr/kernel.h>
#include <zephyr/drivers/lora.h>
#include <zephyr/modem/pipe.h>
#include <zephyr/modem/backend/uart.h>
#include <zephyr/modem/chat.h>
#include <zephyr/sys/atomic.h>
#include <errno.h>
LOG_MODULE_REGISTER(rylr, CONFIG_LORA_LOG_LEVEL);
#define RYLR_CMD_BAND_FORMAT "AT+BAND=%u\r\n"
#define RYLR_CMD_BAND_PARM_CHARS 9U
#define RYLR_CMD_BAND_FORMAT_NUM_WILDCARDS 1U
#define RYLR_CMD_BAND_FORMAT_WILDCARD_CHARS (RYLR_CMD_BAND_FORMAT_NUM_WILDCARDS * 2)
#define RYLR_CMD_BAND_FORMAT_LEN_WITHOUT_WILDCARDS \
(sizeof(RYLR_CMD_BAND_FORMAT) - RYLR_CMD_BAND_FORMAT_WILDCARD_CHARS - 1)
#define RYLR_CMD_BAND_LENGTH (RYLR_CMD_BAND_FORMAT_LEN_WITHOUT_WILDCARDS + RYLR_CMD_BAND_PARM_CHARS)
#define RYLR_CMD_SEND_FORMAT "AT+SEND=0,%u,%s\r\n"
#define RYLR_CMD_SEND_FORMAT_NUM_WILDCARDS 2U
#define RYLR_CMD_SEND_FORMAT_WILDCARD_CHARS (RYLR_CMD_SEND_FORMAT_NUM_WILDCARDS * 2)
#define RYLR_CMD_SEND_FORMAT_LEN_WITHOUT_WILDCARDS \
(sizeof(RYLR_CMD_SEND_FORMAT) - RYLR_CMD_SEND_FORMAT_WILDCARD_CHARS - 1)
#define RYLR_PAYLOAD_LENGTH_FIELD_CHARS(payload_len) \
(payload_len >= 100 ? 3 : (payload_len >= 10 ? 2 : 1))
#define RYLR_CMD_SEND_LENGTH(payload_len) \
(RYLR_CMD_SEND_FORMAT_LEN_WITHOUT_WILDCARDS + \
RYLR_PAYLOAD_LENGTH_FIELD_CHARS(payload_len) + payload_len)
#define RYLR_CMD_RF_SETTINGS_FORMAT "AT+PARAMETER=%u,%u,%u,%u\r\n"
#define RYLR_CMD_RF_SETTINGS_FORMAT_NUM_WILDCARDS 4U
#define RYLR_CMD_RF_SETTINGS_FORMAT_WILDCARD_CHARS (RYLR_CMD_RF_SETTINGS_FORMAT_NUM_WILDCARDS * 2U)
#define RYLR_CMD_RF_SETTINGS_FORMAT_LEN_WITHOUT_WILDCARDS \
(sizeof(RYLR_CMD_RF_SETTINGS_FORMAT) - RYLR_CMD_RF_SETTINGS_FORMAT_WILDCARD_CHARS - 1)
#define RYLR_CMD_RF_SETTINGS_FORMAT_PARAM_CHARS(spread_factor) \
(RYLR_CMD_RF_SETTINGS_FORMAT_NUM_WILDCARDS - 1) + (spread_factor >= 10U ? 2U : 1U)
#define RYLR_CMD_RF_SETTINGS_LEN(spread_factor) \
(RYLR_CMD_RF_SETTINGS_FORMAT_LEN_WITHOUT_WILDCARDS + \
RYLR_CMD_RF_SETTINGS_FORMAT_PARAM_CHARS(spread_factor))
#define RYLR_CMD_POWER_FORMAT "AT+CRFOP=%u\r\n"
#define RYLR_CMD_POWER_FORMAT_NUM_WILDCARDS 1U
#define RYLR_CMD_POWER_FORMAT_WILDCARD_CHARS (RYLR_CMD_POWER_FORMAT_NUM_WILDCARDS * 2U)
#define RYLR_CMD_POWER_FORMAT_LEN_WITHOUT_WILDCARDS \
(sizeof(RYLR_CMD_POWER_FORMAT) - RYLR_CMD_POWER_FORMAT_WILDCARD_CHARS - 1)
#define RYLR_CMD_POWER_FORMAT_PARAM_CHARS(power) (power >= 10U ? 2U : 1U)
#define RYLR_CMD_POWER_LEN(power) \
(RYLR_CMD_POWER_FORMAT_LEN_WITHOUT_WILDCARDS + RYLR_CMD_POWER_FORMAT_PARAM_CHARS(power))
#define RYLR_MAX_RESPONSE 256
#define RYLR_MAX_MSG_BYTES 256
#define RYLR_ALLOC_TIMEOUT K_SECONDS(1)
#define RYLR_TX_PENDING_FLAG_POS (0U)
#define RYLR_RX_PENDING_FLAG_POS (1U)
#define RYLR_IS_TX_PENDING(flags) (flags & (0x01 << RYLR_TX_PENDING_FLAG_POS))
#define RYLR_IS_RX_PENDING(flags) (flags & (0x01 << RYLR_RX_PENDING_FLAG_POS))
#define RYLR_SET_TX_PENDING(flags) (flags |= (0x01 << RYLR_TX_PENDING_FLAG_POS))
#define RYLR_SET_RX_PENDING(flags) (flags |= (0x01 << RYLR_RX_PENDING_FLAG_POS))
#define RYLR_CLEAR_TX_PENDING(flags) (flags &= ~(0x01 << RYLR_TX_PENDING_FLAG_POS))
#define RYLR_CLEAR_RX_PENDING(flags) (flags &= ~(0x01 << RYLR_RX_PENDING_FLAG_POS))
#define RYLR_IS_ASYNC_OP_PENDING(flags) (RYLR_IS_RX_PENDING(flags) || RYLR_IS_TX_PENDING(flags))
#define RYLR_MAX_RESPONSE_ARGS 6U
#define RYLR_MIN_RESET_MSECS (100U)
#define RYLR_RESET_WAIT_MSECS (RYLR_MIN_RESET_MSECS + 10U)
struct rylr_config {
const struct device *uart;
const struct gpio_dt_spec reset;
};
struct rylr_data {
uint8_t cmd_buffer[CONFIG_LORA_RYLRXX_CMD_BUF_SIZE];
size_t curr_cmd_len;
bool is_tx;
int handler_error;
struct k_msgq rx_msgq;
struct k_sem script_sem;
struct k_sem operation_sem;
uint8_t pending_async_flags;
struct k_poll_signal *async_tx_signal;
lora_recv_cb async_rx_cb;
const struct device *dev;
uint8_t msgq_buffer[CONFIG_RYLRXXX_UNSOLICITED_RX_MSGQ_SIZE];
struct modem_pipe *modem_pipe;
uint8_t uart_backend_rx_buff[CONFIG_RYLRXXX_MODEM_BUFFERS_SIZE];
uint8_t uart_backend_tx_buff[CONFIG_RYLRXXX_MODEM_BUFFERS_SIZE];
struct modem_pipe *uart_pipe;
struct modem_backend_uart uart_backend;
uint8_t chat_rx_buf[CONFIG_RYLRXXX_MODEM_BUFFERS_SIZE];
uint8_t chat_tx_buf[CONFIG_RYLRXXX_MODEM_BUFFERS_SIZE];
uint8_t *chat_argv[RYLR_MAX_RESPONSE_ARGS];
struct modem_chat chat;
struct modem_chat_script dynamic_script;
struct modem_chat_script_chat dynamic_chat;
};
struct rylr_recv_msg {
uint16_t addr;
uint8_t length;
uint8_t *data;
uint8_t rssi;
uint8_t snr;
};
static void on_ok(struct modem_chat *chat, char **argv, uint16_t argc, void *user_data)
{
int err = 0;
struct rylr_data *driver_data = user_data;
driver_data->handler_error = err;
}
static void on_err(struct modem_chat *chat, char **argv, uint16_t argc, void *user_data)
{
int radio_err = 0;
struct rylr_data *driver_data = user_data;
driver_data->handler_error = -EIO;
if (argc != 2) {
driver_data->handler_error = -EBADMSG;
LOG_ERR("malformed error message from radio");
return;
}
radio_err = atoi(argv[1]);
LOG_ERR("error from rylr: %d", radio_err);
}
static void on_rx(struct modem_chat *chat, char **argv, uint16_t argc, void *user_data)
{
struct rylr_data *driver_data = user_data;
struct rylr_recv_msg msg;
int err = 0;
driver_data->handler_error = 0;
if (argc != 6) {
driver_data->handler_error = -EBADMSG;
return;
}
msg.addr = atoi(argv[1]);
msg.length = atoi(argv[2]);
msg.data = argv[3];
msg.rssi = atoi(argv[4]);
msg.snr = atoi(argv[5]);
if (RYLR_IS_RX_PENDING(driver_data->pending_async_flags)) {
driver_data->async_rx_cb(driver_data->dev, msg.data, msg.length, msg.rssi, msg.snr);
} else {
err = k_msgq_put(&driver_data->rx_msgq, &msg, K_NO_WAIT);
if (err != 0) {
LOG_ERR("error adding messgae to queue: %d", err);
driver_data->handler_error = err;
}
}
}
static void on_script_finished(struct modem_chat *chat, enum modem_chat_script_result result,
void *user_data)
{
struct rylr_data *driver_data = user_data;
if (RYLR_IS_TX_PENDING(driver_data->pending_async_flags)) {
RYLR_CLEAR_TX_PENDING(driver_data->pending_async_flags);
k_poll_signal_raise(driver_data->async_tx_signal, driver_data->handler_error);
k_sem_give(&driver_data->operation_sem);
}
k_sem_give(&driver_data->script_sem);
}
MODEM_CHAT_MATCH_DEFINE(ok_match, "+OK", "", on_ok);
MODEM_CHAT_MATCHES_DEFINE(abort_matches, MODEM_CHAT_MATCH("+ERR=", "", on_err));
MODEM_CHAT_MATCHES_DEFINE(unsol_matches, MODEM_CHAT_MATCH("+RCV=", ",", on_rx));
MODEM_CHAT_SCRIPT_CMDS_DEFINE(ping_cmd, MODEM_CHAT_SCRIPT_CMD_RESP("AT\r\n", ok_match));
MODEM_CHAT_SCRIPT_DEFINE(ping_script, ping_cmd, abort_matches, on_script_finished,
CONFIG_RYLRXXX_RADIO_CMD_RESPONSE_TIMEOUT_MS);
static void rylr_reset_dynamic_script(struct rylr_data *data)
{
data->dynamic_chat.response_matches = &ok_match;
data->dynamic_chat.response_matches_size = 1;
data->dynamic_chat.timeout = 0;
data->dynamic_script.script_chats = &data->dynamic_chat;
data->dynamic_script.script_chats_size = 1;
data->dynamic_script.abort_matches = abort_matches;
data->dynamic_script.abort_matches_size = 1;
data->dynamic_script.callback = on_script_finished;
data->dynamic_script.timeout = CONFIG_RYLRXXX_RADIO_CMD_RESPONSE_TIMEOUT_MS;
}
static uint32_t rylr_get_bandwidth_index(enum lora_signal_bandwidth bw)
{
switch (bw) {
case BW_125_KHZ:
return 7;
case BW_250_KHZ:
return 8;
case BW_500_KHZ:
return 9;
default:
return 7;
}
}
static int rylr_send_cmd_buffer(const struct device *dev)
{
int err = 0;
struct rylr_data *data = dev->data;
rylr_reset_dynamic_script(data);
data->dynamic_chat.request = data->cmd_buffer;
data->dynamic_chat.request_size = data->curr_cmd_len;
err = modem_chat_run_script(&data->chat, &data->dynamic_script);
if (err != 0) {
LOG_ERR("could not send cmd: %s. err: %d", data->cmd_buffer, err);
return err;
}
err = k_sem_take(&data->script_sem, K_MSEC(CONFIG_RYLRXXX_RADIO_CMD_RESPONSE_TIMEOUT_MS));
if (err) {
LOG_ERR("error waiting for response: %d", err);
return err;
}
return data->handler_error;
}
static int rylr_set_rf_band(const struct device *dev, uint32_t frequency)
{
struct rylr_data *data = dev->data;
if (sprintf(data->cmd_buffer, RYLR_CMD_BAND_FORMAT, frequency) != RYLR_CMD_BAND_LENGTH) {
LOG_ERR("could not create frequency string");
return -EINVAL;
}
data->curr_cmd_len = RYLR_CMD_BAND_LENGTH;
return rylr_send_cmd_buffer(dev);
}
static int rylr_set_rf_parameters(const struct device *dev, uint32_t datarate, uint32_t bandwidth,
uint32_t coding_rate, uint32_t preamble_length)
{
struct rylr_data *data = dev->data;
size_t cmd_len;
if (datarate < 7 || datarate > 12) {
LOG_ERR("datarate/spread factor must be between 7 and 12 inclusive");
return -EINVAL;
}
if (coding_rate < 1 || coding_rate > 4) {
LOG_ERR("coding rate must be between 1 and 4 inclusive");
return -EINVAL;
}
if (preamble_length < 4 || preamble_length > 7) {
LOG_ERR("preamble length must be between 4 and 7 inclusive");
return -EINVAL;
}
cmd_len = sprintf(data->cmd_buffer, RYLR_CMD_RF_SETTINGS_FORMAT, datarate,
rylr_get_bandwidth_index(bandwidth), coding_rate, preamble_length);
if (cmd_len != RYLR_CMD_RF_SETTINGS_LEN(datarate)) {
LOG_ERR("could not create rf settings string");
return -EINVAL;
}
data->curr_cmd_len = cmd_len;
return rylr_send_cmd_buffer(dev);
}
static int rylr_set_power(const struct device *dev, uint32_t power)
{
struct rylr_data *data = dev->data;
size_t cmd_len;
if (power > 15) {
LOG_ERR("power cannot be greater than 15");
return -EINVAL;
}
cmd_len = RYLR_CMD_POWER_LEN(power);
if (sprintf(data->cmd_buffer, RYLR_CMD_POWER_FORMAT, power) != cmd_len) {
LOG_ERR("could not create power string");
return -EINVAL;
}
data->curr_cmd_len = cmd_len;
return rylr_send_cmd_buffer(dev);
}
static int rylr_config(const struct device *dev, struct lora_modem_config *config)
{
int err = 0;
struct rylr_data *data = dev->data;
err = k_sem_take(&data->operation_sem, K_NO_WAIT);
if (err != 0) {
LOG_ERR("error taking operation semaphore: %d", err);
return err;
}
if (RYLR_IS_ASYNC_OP_PENDING(data->pending_async_flags)) {
LOG_ERR("pending async opperation");
err = -EBUSY;
goto exit;
}
err = rylr_set_rf_band(dev, config->frequency);
if (err != 0) {
LOG_ERR("could not send frequency cmd: %d", err);
goto exit;
}
err = rylr_set_rf_parameters(dev, config->datarate, config->bandwidth, config->coding_rate,
config->preamble_len);
if (err != 0) {
LOG_ERR("could not send rf params cmd: %d", err);
goto exit;
}
err = rylr_set_power(dev, config->tx_power);
if (err != 0) {
LOG_ERR("could not send power cmd: %d", err);
goto exit;
}
data->is_tx = config->tx;
exit:
k_sem_give(&data->operation_sem);
return err;
}
int rylr_send(const struct device *dev, uint8_t *payload, uint32_t payload_len)
{
int err = 0;
struct rylr_data *data = dev->data;
int cmd_len = RYLR_CMD_SEND_LENGTH(payload_len);
err = k_sem_take(&data->operation_sem, K_NO_WAIT);
if (err != 0) {
LOG_ERR("error taking operation semaphore: %d", err);
return err;
}
if (RYLR_IS_ASYNC_OP_PENDING(data->pending_async_flags)) {
LOG_ERR("pending async opperation");
err = -EBUSY;
goto exit;
}
if (!data->is_tx) {
LOG_ERR("radio not configured in tx mode");
err = -EOPNOTSUPP;
goto exit;
}
if (cmd_len > CONFIG_LORA_RYLRXX_CMD_BUF_SIZE) {
LOG_ERR("payload too long");
err = -EINVAL;
goto exit;
}
snprintf(data->cmd_buffer, cmd_len + 1, RYLR_CMD_SEND_FORMAT, payload_len, payload);
data->curr_cmd_len = cmd_len;
err = rylr_send_cmd_buffer(dev);
if (err != 0) {
LOG_ERR("error sending data: %d", err);
goto exit;
}
exit:
k_sem_give(&data->operation_sem);
return err;
}
int rylr_send_async(const struct device *dev, uint8_t *payload, uint32_t payload_len,
struct k_poll_signal *async)
{
int err = 0;
struct rylr_data *data = dev->data;
int cmd_len;
err = k_sem_take(&data->operation_sem, K_NO_WAIT);
if (err != 0) {
LOG_ERR("error taking operation sem: %d", err);
return err;
}
if (RYLR_IS_ASYNC_OP_PENDING(data->pending_async_flags)) {
LOG_ERR("pending async opperation");
err = -EBUSY;
goto bail;
}
RYLR_SET_TX_PENDING(data->pending_async_flags);
if (!data->is_tx) {
LOG_ERR("radio not configured in tx mode");
err = -EOPNOTSUPP;
goto bail;
}
cmd_len = RYLR_CMD_SEND_LENGTH(payload_len);
if (cmd_len > CONFIG_LORA_RYLRXX_CMD_BUF_SIZE) {
LOG_ERR("payload too long");
err = -EINVAL;
goto bail;
}
if (async == NULL) {
LOG_ERR("async signal cannot be null");
err = -EINVAL;
goto bail;
}
data->async_tx_signal = async;
data->curr_cmd_len =
snprintf(data->cmd_buffer, cmd_len + 1, RYLR_CMD_SEND_FORMAT, payload_len, payload);
rylr_reset_dynamic_script(data);
data->dynamic_chat.request = data->cmd_buffer;
data->dynamic_chat.request_size = data->curr_cmd_len;
return modem_chat_run_script_async(&data->chat, &data->dynamic_script);
bail:
RYLR_CLEAR_TX_PENDING(data->pending_async_flags);
k_sem_give(&data->operation_sem);
return err;
}
int rylr_recv(const struct device *dev, uint8_t *ret_msg, uint8_t size, k_timeout_t timeout,
int16_t *rssi, int8_t *snr)
{
int ret = 0;
struct rylr_data *data = dev->data;
struct rylr_recv_msg msg;
ret = k_sem_take(&data->operation_sem, K_NO_WAIT);
if (ret != 0) {
LOG_ERR("error taking operation semaphore: %d", ret);
return ret;
}
if (data->is_tx) {
LOG_ERR("radio is configured for tx");
ret = -EOPNOTSUPP;
goto exit;
}
if (RYLR_IS_ASYNC_OP_PENDING(data->pending_async_flags)) {
LOG_ERR("pending async opperation");
ret = -EBUSY;
goto exit;
}
ret = k_msgq_get(&data->rx_msgq, &msg, timeout);
if (ret != 0) {
LOG_ERR("error getting msg from queue: %d", ret);
goto exit;
}
ret = data->handler_error;
if (ret != 0) {
LOG_ERR("error in recv cb: %d", ret);
goto exit;
}
if (msg.length > size) {
LOG_ERR("buf len of %u too small for message len of %u", size, msg.length);
ret = -ENOBUFS;
goto exit;
}
*rssi = msg.rssi;
*snr = msg.snr;
memcpy(ret_msg, msg.data, msg.length);
ret = msg.length;
exit:
k_sem_give(&data->operation_sem);
return ret;
}
int rylr_recv_async(const struct device *dev, lora_recv_cb cb)
{
int err = 0;
struct rylr_data *data = dev->data;
err = k_sem_take(&data->operation_sem, K_NO_WAIT);
if (err != 0) {
LOG_ERR("error taking operation semaphore: %d", err);
return err;
}
/* This is not a user error but the documeted way to cancel async reception in lora api*/
if (cb == NULL) {
goto bail;
}
if (data->is_tx) {
LOG_ERR("radio is configured for tx");
err = -EOPNOTSUPP;
goto bail;
}
data->async_rx_cb = cb;
if (RYLR_IS_ASYNC_OP_PENDING(data->pending_async_flags)) {
LOG_ERR("pending async opperation");
err = -EBUSY;
goto bail;
}
RYLR_SET_RX_PENDING(data->pending_async_flags);
return err;
bail:
RYLR_CLEAR_RX_PENDING(data->pending_async_flags);
k_sem_give(&data->operation_sem);
return err;
}
int rylr_test_cw(const struct device *dev, uint32_t frequency, int8_t tx_power, uint16_t duration)
{
return -ENOSYS;
}
static int rylr_init(const struct device *dev)
{
int err = 0;
struct rylr_data *data = dev->data;
const struct rylr_config *config = dev->config;
if (!gpio_is_ready_dt(&config->reset)) {
return -ENODEV;
}
if (!device_is_ready(config->uart)) {
return -ENODEV;
}
err = gpio_pin_configure_dt(&config->reset, config->reset.dt_flags);
if (err != 0) {
LOG_ERR("error configuring reset gpio: %d", err);
return err;
}
k_msgq_init(&data->rx_msgq, data->msgq_buffer, sizeof(struct rylr_recv_msg),
ARRAY_SIZE(data->msgq_buffer));
err = k_sem_init(&data->script_sem, 0, 1);
if (err != 0) {
LOG_ERR("error initializing response semaphore. err=%d", err);
}
err = k_sem_init(&data->operation_sem, 1, 1);
if (err != 0) {
LOG_ERR("error initializing operation semaphore. err=%d", err);
}
const struct modem_backend_uart_config uart_backend_config = {
.uart = config->uart,
.receive_buf = data->uart_backend_rx_buff,
.receive_buf_size = ARRAY_SIZE(data->uart_backend_rx_buff),
.transmit_buf = data->uart_backend_tx_buff,
.transmit_buf_size = ARRAY_SIZE(data->uart_backend_tx_buff),
};
data->uart_pipe = modem_backend_uart_init(&data->uart_backend, &uart_backend_config);
const struct modem_chat_config chat_config = {
.user_data = data,
.receive_buf = data->chat_rx_buf,
.receive_buf_size = ARRAY_SIZE(data->chat_rx_buf),
.delimiter = "\r\n",
.delimiter_size = sizeof("\r\n") - 1,
.filter = NULL,
.filter_size = 0,
.argv = data->chat_argv,
.argv_size = ARRAY_SIZE(data->chat_argv),
.unsol_matches = unsol_matches,
.unsol_matches_size = ARRAY_SIZE(unsol_matches),
};
err = modem_chat_init(&data->chat, &chat_config);
if (err != 0) {
LOG_ERR("error initializing chat %d", err);
return err;
}
err = modem_chat_attach(&data->chat, data->uart_pipe);
if (err != 0) {
LOG_ERR("error attaching chat %d", err);
return err;
}
err = modem_pipe_open(data->uart_pipe, K_SECONDS(10));
if (err != 0) {
LOG_ERR("error opening uart pipe %d", err);
return err;
}
err = gpio_pin_set_dt(&config->reset, 1);
if (err != 0) {
LOG_ERR("error setting reset line: %d", err);
return err;
}
k_sleep(K_MSEC(RYLR_RESET_WAIT_MSECS));
err = gpio_pin_set_dt(&config->reset, 0);
if (err != 0) {
LOG_ERR("error unsetting reset line: %d", err);
return err;
}
k_sleep(K_MSEC(RYLR_RESET_WAIT_MSECS)); /* wait a bit more for module to boot up*/
err = modem_chat_run_script(&data->chat, &ping_script);
if (err != 0) {
LOG_ERR("error pinging radio: %d", err);
return err;
}
err = k_sem_take(&data->script_sem, K_MSEC(CONFIG_RYLRXXX_RADIO_CMD_RESPONSE_TIMEOUT_MS));
if (err != 0) {
LOG_ERR("error waiting for ping response from radio %d", err);
return err;
}
LOG_INF("successfully initialized rylr");
return err;
}
static const struct lora_driver_api rylr_lora_api = {
.config = rylr_config,
.send = rylr_send,
.send_async = rylr_send_async,
.recv = rylr_recv,
.recv_async = rylr_recv_async,
.test_cw = rylr_test_cw,
};
#define RYLR_DEVICE_INIT(n) \
static struct rylr_data dev_data_##n; \
static const struct rylr_config dev_config_##n = { \
.uart = DEVICE_DT_GET(DT_INST_BUS(n)), \
.reset = GPIO_DT_SPEC_INST_GET(n, reset_gpios), \
}; \
DEVICE_DT_INST_DEFINE(n, &rylr_init, NULL, &dev_data_##n, &dev_config_##n, POST_KERNEL, \
CONFIG_LORA_INIT_PRIORITY, &rylr_lora_api);
DT_INST_FOREACH_STATUS_OKAY(RYLR_DEVICE_INIT)
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