Merge remote-tracking branch 'refs/remotes/xyz/master'

1 files changed, 296 insertions, 0 deletions

diff --git a/nrfdemo/src/main.c b/nrfdemo/src/main.c
new file mode 100644
index 0000000..770b178
--- /dev/null
+++ b/nrfdemo/src/main.c
@@ -0,0 +1,296 @@
+/*
+ * Copyright (c) 2018 Nordic Semiconductor ASA
+ * Copyright (c) 2024 Conexio Technologies, Inc
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+
+#include <stdio.h>
+#include <ncs_version.h>
+#include <zephyr/kernel.h>
+#include <zephyr/net/socket.h>
+
+#include <zephyr/logging/log.h>
+#include <dk_buttons_and_leds.h>
+#include <modem/nrf_modem_lib.h>
+#include <modem/lte_lc.h>
+/* Header file for the MQTT Library*/
+#include <zephyr/net/mqtt.h>
+#include <nrf_modem_gnss.h>
+#include "mqtt_connection.h"
+
+#include "bme680/bme680.h"
+
+/* The mqtt client struct */
+static struct mqtt_client client;
+/* File descriptor */
+static struct pollfd fds;
+
+/* Define the PVT data frame variable */
+static struct nrf_modem_gnss_pvt_data_frame pvt_data;
+
+/* Declare helper variables to find the TTFF */
+static int64_t gnss_start_time;
+static bool first_fix = false;
+
+static void gnss_event_handler(int event);
+static void print_fix_data(struct nrf_modem_gnss_pvt_data_frame *pvt_data);
+
+static K_SEM_DEFINE(lte_connected, 0, 1);
+
+LOG_MODULE_REGISTER(mqtt_app, LOG_LEVEL_INF);
+
+static void lte_handler(const struct lte_lc_evt *const evt)
+{
+    switch (evt->type) {
+    case LTE_LC_EVT_NW_REG_STATUS:
+        if ((evt->nw_reg_status != LTE_LC_NW_REG_REGISTERED_HOME) &&
+            (evt->nw_reg_status != LTE_LC_NW_REG_REGISTERED_ROAMING)) {
+            break;
+        }
+		LOG_INF("Network registration status: %s",
+				evt->nw_reg_status == LTE_LC_NW_REG_REGISTERED_HOME ?
+				"Connected - home network" : "Connected - roaming");
+		k_sem_give(&lte_connected);
+        break;
+	case LTE_LC_EVT_RRC_UPDATE:
+		LOG_INF("RRC mode: %s", evt->rrc_mode == LTE_LC_RRC_MODE_CONNECTED ?
+				"Connected" : "Idle");
+		break;
+     default:
+			break;
+     }
+}
+
+static int modem_configure(void)
+{
+	int err;
+
+	LOG_INF("Initializing modem library");
+	err = nrf_modem_lib_init();
+	if (err) {
+		LOG_ERR("Failed to initialize the modem library, error: %d", err);
+		return err;
+	}
+
+	LOG_INF("Connecting to LTE network");
+	err = lte_lc_connect_async(lte_handler);
+	if (err) {
+		LOG_ERR("Error in lte_lc_connect_async, error: %d", err);
+		return err;
+	}
+
+	k_sem_take(&lte_connected, K_FOREVER);
+	LOG_INF("Connected to LTE network");
+
+
+	// Blink LED to indicate we connected to MQTT broker
+	dk_set_led_on(DK_LED1);
+	k_msleep(2000);
+	dk_set_led_off(DK_LED1);
+
+	return 0;
+}
+
+static void button_handler(uint32_t button_state, uint32_t has_changed)
+{
+	switch (has_changed) {
+	case DK_BTN1_MSK:
+		/* When button 1/Mode is pressed, call data_publish() to publish a message */
+		if (button_state & DK_BTN1_MSK){
+			int err = data_publish(&client, MQTT_QOS_1_AT_LEAST_ONCE,
+				   CONFIG_BUTTON_EVENT_PUBLISH_MSG, sizeof(CONFIG_BUTTON_EVENT_PUBLISH_MSG)-1);
+			if (err) {
+				LOG_INF("Failed to send message, %d", err);
+				return;
+			}
+		}
+		break;
+	}
+}
+
+#if 1
+/* Define a function to log fix data in a readable format */
+static void print_fix_data(struct nrf_modem_gnss_pvt_data_frame *pvt_data)
+{
+	LOG_INF("Latitude:       %.06f", pvt_data->latitude);
+	LOG_INF("Longitude:      %.06f", pvt_data->longitude);
+	LOG_INF("Altitude:       %.01f m", pvt_data->altitude);
+	LOG_INF("Time (UTC):     %02u:%02u:%02u.%03u",
+	       pvt_data->datetime.hour,
+	       pvt_data->datetime.minute,
+	       pvt_data->datetime.seconds,
+	       pvt_data->datetime.ms);
+}
+
+
+static void gnss_event_handler(int event)
+{
+	int err;
+
+	switch (event) {
+	/* On a PVT event, confirm if PVT data is a valid fix */
+	case NRF_MODEM_GNSS_EVT_PVT:
+		LOG_INF("Searching...");
+		/* Print satellite information */
+		int num_satellites = 0;
+		for (int i = 0; i < 12 ; i++) {
+			if (pvt_data.sv[i].signal != 0) {
+				LOG_INF("sv: %d, cn0: %d", pvt_data.sv[i].sv, pvt_data.sv[i].cn0);
+				num_satellites++;
+			}
+		}
+		LOG_INF("Number of current satellites: %d", num_satellites);
+		err = nrf_modem_gnss_read(&pvt_data, sizeof(pvt_data), NRF_MODEM_GNSS_DATA_PVT);
+		if (err) {
+			LOG_ERR("nrf_modem_gnss_read failed, err %d", err);
+			return;
+		}
+		if (pvt_data.flags & NRF_MODEM_GNSS_PVT_FLAG_FIX_VALID) {
+			dk_set_led_on(DK_LED1);
+			print_fix_data(&pvt_data);
+			/* Print the time to first fix */
+			if (!first_fix) {
+				LOG_INF("Time to first fix: %2.1lld s", (k_uptime_get() - gnss_start_time)/1000);
+				first_fix = true;
+			}
+			return;
+		}
+		break;
+	/* Log when the GNSS sleeps and wakes up */
+	case NRF_MODEM_GNSS_EVT_PERIODIC_WAKEUP:
+		LOG_INF("GNSS has woken up");
+		break;
+	case NRF_MODEM_GNSS_EVT_SLEEP_AFTER_FIX:
+		LOG_INF("GNSS enter sleep after fix");
+		break;
+	default:
+		break;
+	}
+}
+#endif
+
+int main(void)
+{
+	int err;
+	uint32_t connect_attempt = 0;
+
+	LOG_INF("Starting MQTT sample on %s\n", CONFIG_BOARD);
+
+	if (dk_leds_init() != 0) {
+		LOG_ERR("Failed to initialize the LED library");
+	}
+
+	err = modem_configure();
+	if (err) {
+		LOG_ERR("Failed to configure the modem");
+		return 0;
+	}
+
+	if (dk_buttons_init(button_handler) != 0) {
+		LOG_ERR("Failed to initialize the buttons library");
+	}
+
+
+	/* Activate only the GNSS stack */
+	if (lte_lc_func_mode_set(LTE_LC_FUNC_MODE_ACTIVATE_GNSS) != 0) {
+		LOG_ERR("Failed to activate GNSS functional mode");
+		return 0;
+	}
+
+	/* Register the GNSS event handler */
+	if (nrf_modem_gnss_event_handler_set(gnss_event_handler) != 0) {
+		LOG_ERR("Failed to set GNSS event handler");
+		return 0;
+	}
+
+	/* Set the GNSS fix interval and GNSS fix retry period */
+	if (nrf_modem_gnss_fix_interval_set(1) != 0) {
+		LOG_ERR("Failed to set GNSS fix interval");
+		return 0;
+	}
+
+	if (nrf_modem_gnss_fix_retry_set(60) != 0) {
+		LOG_ERR("Failed to set GNSS fix retry");
+		return 0;
+	}
+
+	/* Start the GNSS receiver */
+	LOG_INF("Starting GNSS");
+	if (nrf_modem_gnss_start() != 0) {
+		LOG_ERR("Failed to start GNSS");
+		return 0;
+	}
+
+	err = client_init(&client);
+	if (err) {
+		LOG_ERR("Failed to initialize MQTT client: %d", err);
+		return 0;
+	}
+
+	/* Log the current system uptime */
+	gnss_start_time = k_uptime_get();
+
+do_connect:
+	if (connect_attempt++ > 0) {
+		LOG_INF("Reconnecting in %d seconds...",
+			CONFIG_MQTT_RECONNECT_DELAY_S);
+		k_sleep(K_SECONDS(CONFIG_MQTT_RECONNECT_DELAY_S));
+	}
+
+	LOG_INF("Connection to broker using mqtt_connect");
+	err = mqtt_connect(&client);
+	if (err) {
+		LOG_ERR("Error in mqtt_connect: %d", err);
+		goto do_connect;
+	}
+
+	err = fds_init(&client,&fds);
+	if (err) {
+		LOG_ERR("Error in fds_init: %d", err);
+		return 0;
+	}
+
+	while (1) {
+		err = poll(&fds, 1, mqtt_keepalive_time_left(&client));
+		if (err < 0) {
+			LOG_ERR("Error in poll(): %d", errno);
+			break;
+		}
+
+		err = mqtt_live(&client);
+		if ((err != 0) && (err != -EAGAIN)) {
+			LOG_ERR("Error in mqtt_live: %d", err);
+			break;
+		}
+
+		if ((fds.revents & POLLIN) == POLLIN) {
+			err = mqtt_input(&client);
+			if (err != 0) {
+				LOG_ERR("Error in mqtt_input: %d", err);
+				break;
+			}
+		}
+
+		if ((fds.revents & POLLERR) == POLLERR) {
+			LOG_ERR("POLLERR");
+			break;
+		}
+
+		if ((fds.revents & POLLNVAL) == POLLNVAL) {
+			LOG_ERR("POLLNVAL");
+			break;
+		}
+	}
+
+	LOG_INF("Disconnecting MQTT client");
+
+	err = mqtt_disconnect(&client);
+	if (err) {
+		LOG_ERR("Could not disconnect MQTT client: %d", err);
+	}
+	goto do_connect;
+
+	/* This is never reached */
+	return 0;
+}