samples: cellular: nrf_cloud_coap_client: Add new sample

This nRF Cloud CoAP client demonstrates using FOTA, messaging,
cellular positioning, A-GPS, and P-GPS over CoAP.

Get modem info IMEI and mfw. Init the modem, which waits for LTE
connection. Look up server IP. Init the client, including
looking up device IP with modem info.

Send real cell pos parameters, receive, decode, and display
location. Send cell pos back as fake GNSS PVT data.

Send fake temperature sensor data. Receive and process
MODEM and APP FOTA types.

Signed-off-by: Pete Skeggs <peter.skeggs@nordicsemi.no>

samples/cellular/nrf_cloud_coap_client/CMakeLists.txt

@@ -0,0 +1,18 @@
+#
+# Copyright (c) 2022 Nordic Semiconductor
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+cmake_minimum_required(VERSION 3.20.0)
+
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+project(nrf-cloud-coap-client)
+zephyr_compile_definitions(PROJECT_NAME=${PROJECT_NAME})
+find_program(ZCBOR zcbor REQUIRED)
+
+# NORDIC SDK APP START
+target_sources(app PRIVATE src/main.c src/handle_fota.c)
+# NORDIC SDK APP END
+
+zephyr_include_directories(src)

samples/cellular/nrf_cloud_coap_client/Kconfig

@@ -0,0 +1,72 @@
+#
+# Copyright (c) 2022 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+menu "nRF Cloud CoAP client sample"
+
+config NRF_CLOUD_COAP_CLIENT_SAMPLE_VERSION
+	string "The sample's version string"
+	default "1.0.0"
+
+config COAP_FOTA_JOB_CHECK_RATE_MIN
+	int "Rate (minutes) at which this sample will check for FOTA updates"
+	default 1
+
+config COAP_FOTA_DL_TIMEOUT_MIN
+	int "The time (minutes) allotted for a FOTA download to complete"
+	default 15
+	help
+	  If the FOTA download does not complete in the allotted time,
+	  the download will be cancelled and the job status will be
+	  set as failed.
+
+config COAP_FOTA_USE_NRF_CLOUD_SETTINGS_AREA
+	bool "Use the same settings area as the nRF Cloud FOTA library"
+	default y
+	help
+	  Using the same settings area as the nRF Cloud FOTA library will
+	  allow this sample to perform application-FOTA updates to applications
+	  built with CONFIG_NRF_CLOUD_FOTA enabled.
+
+config COAP_FOTA_SETTINGS_NAME
+	depends on !COAP_FOTA_USE_NRF_CLOUD_SETTINGS_AREA
+	string "Settings identifier for the COAP FOTA sample"
+	default "coap_fota_sample"
+	help
+	  The root settings identifier for this application.
+	  For application-FOTA, this value should also be found in your target application
+	  so that the FOTA status can be properly reported to nRF Cloud.
+
+config COAP_FOTA_SETTINGS_KEY_PENDING_JOB
+	depends on !COAP_FOTA_USE_NRF_CLOUD_SETTINGS_AREA
+	string "Settings item key for pending FOTA job info"
+	default "pending_job"
+	help
+	  The settings item key where pending FOTA job info will be stored.
+	  For application-FOTA, this value should also be found in your target application
+	  so that the FOTA status can be properly reported to nRF Cloud.
+
+config COAP_FOTA_USE_THREAD
+	bool "Use a thread to process FOTA in the background"
+	help
+	  If not enabled, call the handle_fota_process() periodically. Otherwise, a
+	  thread will process based on COAP_FOTA_JOB_CHECK_RATE_MIN.
+
+config COAP_FOTA_THREAD_STACK_SIZE
+	int "CoAP FOTA Thread Stack Size (bytes)"
+	default 2048
+	help
+	  Sets the stack size (in bytes) for the CoAP FOTA thread of the
+	  sample.
+
+module = NRF_CLOUD_COAP_CLIENT
+module-dep = LOG
+module-str = nRF Cloud CoAP Client Sample
+source "${ZEPHYR_BASE}/subsys/logging/Kconfig.template.log_config"
+endmenu # Application sample
+
+menu "Zephyr Kernel"
+source "Kconfig.zephyr"
+endmenu

samples/cellular/nrf_cloud_coap_client/nrf9160dk_with_nrf7002ek.overlay

@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2022 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+
+/* Use high drive mode on SPI pins that handle communication with nRF7002
+ * so that SCK frequency > 4 MHz can be used. */
+ &spi3_default {
+	group1 {
+		nordic,drive-mode = <NRF_DRIVE_H0H1>;
+	};
+};
+
+/* Disabled because of conflicts on P0.00 and P0.01 - Arduino pins D0 and D1
+ * (iovdd-ctrl-gpios and bucken-gpios in nrf7002ek, respectively). */
+&uart1 {
+	status = "disabled";
+};

samples/cellular/nrf_cloud_coap_client/overlay-debug.conf

@@ -0,0 +1,41 @@
+#
+# Copyright (c) 2022 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+# General config
+CONFIG_DEBUG=y
+
+# Logging
+CONFIG_LOG=y
+CONFIG_COAP_LOG_LEVEL_DBG=y
+CONFIG_NRF_CLOUD_COAP_CLIENT_LOG_LEVEL_DBG=y
+CONFIG_NRF_CLOUD_COAP_LOG_LEVEL_DBG=y
+CONFIG_NRF_CLOUD_LOG_LEVEL_INF=y
+CONFIG_NRF_CLOUD_GPS_LOG_LEVEL_INF=y
+CONFIG_LOCATION_LOG_LEVEL_DBG=y
+CONFIG_LTE_LINK_CONTROL_LOG_LEVEL_WRN=y
+CONFIG_NET_LOG=y
+CONFIG_NET_OFFLOAD_LOG_LEVEL_WRN=y
+CONFIG_NET_UDP_LOG_LEVEL_WRN=y
+CONFIG_NET_SOCKETS_LOG_LEVEL_WRN=y
+CONFIG_NET_IF_LOG_LEVEL_WRN=y
+CONFIG_NET_CONFIG_LOG_LEVEL_WRN=y
+CONFIG_DNS_RESOLVER_LOG_LEVEL_WRN=n
+CONFIG_NET_CONTEXT_LOG_LEVEL_WRN=y
+CONFIG_AT_HOST_LOG_LEVEL_WRN=y
+CONFIG_DATE_TIME_LOG_LEVEL_INF=y
+CONFIG_SETTINGS_LOG_LEVEL_INF=y
+CONFIG_DOWNLOAD_CLIENT_LOG_LEVEL_INF=y
+
+CONFIG_LOG_PRINTK=y
+CONFIG_LOG_MODE_IMMEDIATE=y
+CONFIG_LOG_DEFAULT_LEVEL=3
+CONFIG_LOG_FUNC_NAME_PREFIX_DBG=y
+CONFIG_LOG_FUNC_NAME_PREFIX_INF=y
+CONFIG_LOG_FUNC_NAME_PREFIX_WRN=y
+CONFIG_LOG_FUNC_NAME_PREFIX_ERR=y
+
+# Modem library
+CONFIG_NRF_MODEM_LIB_LOG_LEVEL_INF=y
+CONFIG_NRF_MODEM_LOG=n

samples/cellular/nrf_cloud_coap_client/overlay-nrf7002ek-wifi-scan-only.conf

@@ -0,0 +1,51 @@
+#
+# Copyright (c) 2022 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+# Overlay to use nRF7002 EK on top of nrf9160 DK for Wi-Fi scanning
+
+# Enable the Wi-Fi location method:
+CONFIG_LOCATION_METHOD_WIFI=y
+# Align this with CONFIG_NRF700X_SCAN_LIMIT.
+# Also see comments for CONFIG_HEAP_MEM_POOL_SIZE.
+CONFIG_LOCATION_METHOD_WIFI_SCANNING_RESULTS_MAX_CNT=10
+CONFIG_NRF700X_SCAN_LIMIT=10
+
+# Enable Wi-Fi drivers, (and the native NET stack so that the location library can access them)
+CONFIG_WIFI=y
+CONFIG_WIFI_NRF700X=y
+CONFIG_NET_L2_ETHERNET=y
+CONFIG_NET_NATIVE=y
+
+# System settings
+CONFIG_NEWLIB_LIBC=y
+
+# Disable the supplicant and local networking features, since we don't need connectivity
+CONFIG_WPA_SUPP=n
+CONFIG_MBEDTLS=n
+CONFIG_NET_IPV4=n
+CONFIG_NET_IPV6=n
+CONFIG_NET_UDP=n
+CONFIG_NET_TCP=n
+CONFIG_NORDIC_SECURITY_BACKEND=n
+
+# Stack/heap tweaks needed to support Wi-Fi.
+# Heap allocation should be changed when CONFIG_LOCATION_METHOD_WIFI_SCANNING_RESULTS_MAX_CNT
+# and CONFIG_NRF700X_SCAN_LIMIT (which should be the same value) are changed.
+CONFIG_HEAP_MEM_POOL_SIZE=20000
+CONFIG_NET_MGMT_EVENT_STACK_SIZE=2048
+
+# NET tweaks needed to support Wi-Fi
+CONFIG_NET_BUF_RX_COUNT=8
+CONFIG_NET_BUF_TX_COUNT=8
+CONFIG_NET_PKT_RX_COUNT=1
+CONFIG_NET_PKT_TX_COUNT=1
+CONFIG_NET_TX_STACK_SIZE=4096
+CONFIG_NET_RX_STACK_SIZE=4096
+CONFIG_NET_TC_TX_COUNT=1
+CONFIG_NET_MAX_CONTEXTS=5
+
+CONFIG_NRF_CLOUD_COAP_LOG_LEVEL_DBG=y
+CONFIG_LOCATION_LOG_LEVEL_DBG=y

samples/cellular/nrf_cloud_coap_client/overlay-offload-tls.conf

@@ -0,0 +1,19 @@
+#
+# Copyright (c) 2022 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+# Networking
+CONFIG_NET_NATIVE=n
+CONFIG_NET_OFFLOAD=y
+CONFIG_NET_SOCKETS_OFFLOAD=y
+
+CONFIG_NET_SOCKETS_TLS_SET_MAX_FRAGMENT_LENGTH=y
+
+# Configure for using offloaded UDP and TLS
+CONFIG_NET_SOCKETS_OFFLOAD_PRIORITY=40
+CONFIG_MODEM_KEY_MGMT=y
+
+# Generate JWTs in the modem
+CONFIG_MODEM_JWT=y

samples/cellular/nrf_cloud_coap_client/prj.conf

@@ -0,0 +1,114 @@
+#
+# Copyright (c) 2023 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+# General config
+CONFIG_HEAP_MEM_POOL_SIZE=16384
+CONFIG_NEWLIB_LIBC=y
+CONFIG_NEWLIB_LIBC_FLOAT_PRINTF=y
+
+CONFIG_DK_LIBRARY=y
+
+# Mbed TLS logs include %zu formatters, which are not handled by the nano
+# version of newlib
+CONFIG_NEWLIB_LIBC_NANO=n
+
+# Main thread
+CONFIG_MAIN_STACK_SIZE=6144
+CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=6144
+
+# Networking
+CONFIG_NETWORKING=y
+CONFIG_NET_CONFIG_NEED_IPV6=n
+CONFIG_NET_IPV4=y
+CONFIG_NET_SOCKETS=y
+CONFIG_NET_SOCKETS_POSIX_NAMES=y
+
+# LTE link control
+CONFIG_LTE_LINK_CONTROL=y
+CONFIG_LTE_NETWORK_MODE_LTE_M_GPS=y
+
+# Modem library
+CONFIG_NRF_MODEM_LIB=y
+CONFIG_NRF_MODEM_LIB_LOG_FW_VERSION_UUID=n
+
+# Modem info
+CONFIG_MODEM_INFO=y
+CONFIG_MODEM_INFO_ADD_DEVICE=y
+CONFIG_MODEM_INFO_ADD_NETWORK=y
+CONFIG_MODEM_INFO_ADD_DATE_TIME=n
+CONFIG_MODEM_INFO_ADD_SIM=n
+CONFIG_MODEM_INFO_ADD_SIM_ICCID=n
+CONFIG_MODEM_INFO_ADD_SIM_IMSI=n
+
+# AT Host
+CONFIG_UART_INTERRUPT_DRIVEN=y
+CONFIG_UART_0_INTERRUPT_DRIVEN=y
+CONFIG_AT_HOST_LIBRARY=y
+CONFIG_AT_MONITOR_HEAP_SIZE=4096
+
+# LTE link control
+CONFIG_NET_L2_VIRTUAL=y
+
+# Date/Time
+CONFIG_DATE_TIME=y
+CONFIG_DATE_TIME_AUTO_UPDATE=y
+CONFIG_DATE_TIME_MODEM=y
+CONFIG_DATE_TIME_NTP=n
+
+CONFIG_FPU=y
+CONFIG_CBPRINTF_FP_SUPPORT=y
+
+CONFIG_NRF_CLOUD_COAP=y
+CONFIG_COAP_CLIENT_BLOCK_SIZE=1024
+CONFIG_COAP_CLIENT_STACK_SIZE=6144
+CONFIG_COAP_CLIENT_THREAD_PRIORITY=0
+CONFIG_COAP_EXTENDED_OPTIONS_LEN_VALUE=40
+
+CONFIG_DOWNLOAD_CLIENT_STACK_SIZE=4096
+
+# Flash - Used by FOTA and PGPS
+CONFIG_FLASH=y
+CONFIG_FLASH_PAGE_LAYOUT=y
+CONFIG_FLASH_MAP=y
+CONFIG_STREAM_FLASH=y
+CONFIG_MPU_ALLOW_FLASH_WRITE=y
+CONFIG_PM_EXTERNAL_FLASH_MCUBOOT_SECONDARY=n
+CONFIG_FCB=y
+CONFIG_SETTINGS=y
+CONFIG_SETTINGS_FCB=y
+
+# MCUBOOT - Needed by FOTA
+CONFIG_BOOTLOADER_MCUBOOT=y
+CONFIG_IMG_MANAGER=y
+CONFIG_MCUBOOT_IMG_MANAGER=y
+CONFIG_STREAM_FLASH_ERASE=y
+CONFIG_IMG_ERASE_PROGRESSIVELY=y
+
+CONFIG_REBOOT=y
+
+# FOTA download
+CONFIG_FOTA_DOWNLOAD=y
+CONFIG_FOTA_DOWNLOAD_PROGRESS_EVT=y
+CONFIG_DFU_TARGET=y
+CONFIG_DOWNLOAD_CLIENT=y
+
+CONFIG_LOG=y
+CONFIG_NET_LOG=y
+CONFIG_LOG_PRINTK=y
+CONFIG_COAP_LOG_LEVEL_INF=y
+CONFIG_NRF_CLOUD_COAP_LOG_LEVEL_INF=y
+CONFIG_NRF_CLOUD_COAP_CLIENT_LOG_LEVEL_INF=y
+
+CONFIG_LOCATION=y
+CONFIG_LOCATION_METHOD_GNSS=y
+CONFIG_LOCATION_METHOD_CELLULAR=y
+CONFIG_LOCATION_DATA_DETAILS=y
+CONFIG_LOCATION_LOG_LEVEL_INF=y
+
+# GNSS assistance
+CONFIG_NRF_CLOUD_AGPS=y
+CONFIG_NRF_CLOUD_PGPS=y
+CONFIG_NRF_CLOUD_PGPS_REQUEST_UPON_INIT=y
+CONFIG_NRF_CLOUD_PGPS_NUM_PREDICTIONS=4

samples/cellular/nrf_cloud_coap_client/prj_qemu_x86.conf

@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2019 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+# General config
+CONFIG_TEST_RANDOM_GENERATOR=y
+
+# CoAP
+CONFIG_COAP=y
+
+# Networking config
+CONFIG_NETWORKING=y
+CONFIG_NET_IPV4=y
+CONFIG_NET_UDP=y
+CONFIG_NET_SOCKETS=y
+CONFIG_NET_SOCKETS_POSIX_NAMES=y
+
+CONFIG_DNS_RESOLVER=y
+CONFIG_DNS_SERVER_IP_ADDRESSES=y
+CONFIG_DNS_SERVER1="8.8.8.8"
+
+# Network address config
+CONFIG_NET_CONFIG_SETTINGS=y
+CONFIG_NET_CONFIG_NEED_IPV4=y
+CONFIG_NET_CONFIG_MY_IPV4_ADDR="192.0.2.1"
+CONFIG_NET_CONFIG_PEER_IPV4_ADDR="192.0.2.2"
+CONFIG_NET_CONFIG_MY_IPV4_GW="192.0.2.2"
+
+# Main thread
+CONFIG_MINIMAL_LIBC_MALLOC_ARENA_SIZE=2048

samples/cellular/nrf_cloud_coap_client/sample.yaml

@@ -0,0 +1,19 @@
+sample:
+  name: nRF Cloud CoAP client sample
+tests:
+  samples.nrf9160.nrf_cloud_coap_client:
+    build_only: true
+    integration_platforms:
+      - nrf9160dk_nrf9160_ns
+    platform_allow: nrf9160dk_nrf9160_ns nrf9161dk_nrf9161_ns
+    extra_args: OVERLAY_CONFIG=overlay-offload-tls.conf
+    tags: ci_build
+  sample.nrf9160.nrf_cloud_coap_client.nrf7002ek_wifi:
+    build_only: true
+    integration_platforms:
+      - nrf9160dk_nrf9160_ns
+    platform_allow: nrf9160dk_nrf9160_ns nrf9161dk_nrf9161_ns
+    extra_args: SHIELD=nrf7002ek
+                OVERLAY_CONFIG="overlay-nrf7002ek-wifi-scan-only.conf;overlay-offload-tls.conf"
+                DTC_OVERLAY_FILE="nrf9160dk_with_nrf7002ek.overlay"
+    tags: ci_build