nrfconnect · plskeggs · Feb 6, 2025
@@ -0,0 +1,57 @@
+### Onomondo SoftSIM ###
+CONFIG_SOFTSIM_DEBUG=n
+CONFIG_SOFTSIM_LOG_LEVEL_INF=y
+CONFIG_SOFTSIM_BUNDLE_TEMPLATE_HEX=y
+### Onomondo SoftSIM ###
+
+# Configured to allow a reboot following the provisioning of a profile
+CONFIG_REBOOT=y
+
+# Reduce the size of TF-M by disabling the PS
+CONFIG_TFM_PARTITION_PROTECTED_STORAGE=n
+CONFIG_PSA_CRYPTO_DRIVER_CC3XX=n
+
+# Reduce the size of the TF-M partition
+# when combined with static partitioning
+CONFIG_PM_PARTITION_SIZE_TFM=0x10000
+
+# The bootloader adds a small mcuboot_pad partition,
+# whose size must be subtracted from the TF-M partition
+#CONFIG_BOOTLOADER_MCUBOOT=y
+#CONFIG_PM_PARTITION_SIZE_TFM=0xfe00
+
+# From modules/lib/onomondo-softsim/overlay-softsim.conf
+### Onomondo SoftSIM ###
+# Onomondo SoftSIM Configurations
+CONFIG_SOFTSIM=y
+CONFIG_SOFTSIM_AUTO_INIT=y
+
+# NVS Configurations
+CONFIG_NVS=y
+CONFIG_NVS_LOG_LEVEL_ERR=y
+CONFIG_PM_PARTITION_SIZE_NVS_STORAGE=0x8000
+
+# Flash Configurations
+CONFIG_FLASH=y
+CONFIG_FLASH_MAP=y
+CONFIG_FLASH_PAGE_LAYOUT=y
+CONFIG_MPU_ALLOW_FLASH_WRITE=y
+
+# Stack and Heap Configurations
+CONFIG_MAIN_STACK_SIZE=5000
+CONFIG_HEAP_MEM_POOL_SIZE=30000
+
+# TF-M Configurations
+CONFIG_BUILD_WITH_TFM=y
+CONFIG_TFM_PROFILE_TYPE_NOT_SET=y
+CONFIG_TFM_LOG_LEVEL_SILENCE=y
+
+# PSA Crypto Configurations
+CONFIG_PSA_WANT_ALG_CBC_NO_PADDING=y
+CONFIG_PSA_WANT_ALG_ECB_NO_PADDING=y
+CONFIG_PSA_WANT_ALG_CMAC=y
+CONFIG_PSA_WANT_KEY_TYPE_AES=y
+
+# Libraries
+CONFIG_NEWLIB_LIBC=y
+CONFIG_FP_SOFTABI=y
@@ -11,7 +11,9 @@ CONFIG_MULTI_SERVICE_LOG_LEVEL_INF=y
 
 # General config
 CONFIG_EVENTS=y
-CONFIG_PICOLIBC_IO_FLOAT=y
+CONFIG_NEWLIB_LIBC=y
+CONFIG_NEWLIB_LIBC_FLOAT_PRINTF=y
+#CONFIG_PICOLIBC_IO_FLOAT=y
 CONFIG_RESET_ON_FATAL_ERROR=y
 CONFIG_NCS_SAMPLES_DEFAULTS=y
 
@@ -78,10 +80,10 @@ CONFIG_NRF_CLOUD_MQTT=y # This also enables FOTA by implicitly setting CONFIG_NR
 CONFIG_MQTT_KEEPALIVE=120
 
 # MCUBOOT - Needed by FOTA
-CONFIG_BOOTLOADER_MCUBOOT=y
-CONFIG_IMG_MANAGER=y
-CONFIG_MCUBOOT_IMG_MANAGER=y
-CONFIG_STREAM_FLASH_ERASE=y
+#CONFIG_BOOTLOADER_MCUBOOT=y
+#CONFIG_IMG_MANAGER=y
+#CONFIG_MCUBOOT_IMG_MANAGER=y
+#CONFIG_STREAM_FLASH_ERASE=y
 
 # Location Services configuration
 CONFIG_LOCATION=y

@@ -7,11 +7,19 @@
 #include <zephyr/net/socket.h>
 #include <zephyr/net/conn_mgr_connectivity.h>
 #include <zephyr/logging/log.h>
+#include <zephyr/logging/log_ctrl.h>
+#include <zephyr/sys/reboot.h>
 #include <stdio.h>
 #include <date_time.h>
 #include <net/nrf_cloud.h>
 #include <net/nrf_cloud_codec.h>
 #include <net/nrf_cloud_log.h>
+#if defined(CONFIG_SOFTSIM)
+#include <nrf_softsim.h>
+#include <pm_config.h>
+#include <zephyr/device.h>
+#include <zephyr/drivers/uart.h>
+#endif
 #if defined(CONFIG_NRF_CLOUD_COAP)
 #include <net/nrf_cloud_coap.h>
 #include "fota_support_coap.h"
@@ -35,6 +43,97 @@ LOG_MODULE_REGISTER(cloud_connection, CONFIG_MULTI_SERVICE_LOG_LEVEL);
 #define DATE_TIME_KNOWN			BIT(4)
 static K_EVENT_DEFINE(cloud_events);
 
+#if defined(CONFIG_SOFTSIM)
+#define PROFILE_MAX_SIZE 360
+static const struct device *const uart_dev = DEVICE_DT_GET(DT_NODELABEL(uart0));
+K_SEM_DEFINE(profile_received, 0, 1);
+
+struct rx_buf_t {
+	char *buf;
+	size_t len;
+	size_t pos;
+};
+
+/* read profile from uart */
+void serial_cb(const struct device *dev, void *user_data)
+{
+	int rx_recv = 0;
+	struct rx_buf_t *rx = (struct rx_buf_t *)user_data;
+	char *rx_buf = rx->buf;
+	size_t *rx_buf_pos = &rx->pos;
+
+	if (!uart_irq_update(uart_dev)) {
+		return;
+	}
+
+	while (uart_irq_rx_ready(uart_dev)) {
+		rx_recv = uart_fifo_read(uart_dev, &rx_buf[*rx_buf_pos], 1);
+
+		/* Search for those end of line characters */
+		if ((rx_buf[*rx_buf_pos] == '\n') ||
+		    (rx_buf[*rx_buf_pos] == '\r')) {
+			rx_buf[*rx_buf_pos] = 0;
+			k_sem_give(&profile_received);
+			return;
+		}
+	}
+
+	*rx_buf_pos += rx_recv;
+}
+
+void check_for_softsim(void)
+{
+	if (nrf_softsim_check_provisioned()) {
+		LOG_INF("SoftSIM is provisioned.");
+		return;
+	}
+
+	LOG_INF("Waiting for SoftSIM profile...");
+
+	if (!device_is_ready(uart_dev)) {
+		LOG_ERR("UART device not found!");
+		return;
+	}
+
+	char *profile_read_from_external_source = k_malloc(PROFILE_MAX_SIZE);
+
+	__ASSERT_NO_MSG(profile_read_from_external_source != NULL);
+
+	struct rx_buf_t rx = {
+		.buf = profile_read_from_external_source,
+		.len = PROFILE_MAX_SIZE,
+		.pos = 0,
+	};
+
+	uart_irq_callback_user_data_set(uart_dev, serial_cb, &rx);
+	uart_irq_rx_enable(uart_dev);
+
+	do {
+		LOG_INF("Transfer SoftSIM profile using serial COM port, "
+			"terminate by newline character (return key)");
+	} while (k_sem_take(&profile_received, K_SECONDS(20)));
+
+	LOG_INF("Profile received: %d characters in total", rx.pos);
+
+	uart_irq_rx_disable(uart_dev);
+
+	if (nrf_softsim_provision((uint8_t *)profile_read_from_external_source, rx.pos) != 0) {
+		LOG_ERR("SoftSIM Profile provisioning failed");
+	}
+
+	if (profile_read_from_external_source != NULL) {
+		k_free(profile_read_from_external_source);
+	}
+
+	/* Soft reset to free uart for AT host/monitor */
+	while (log_data_pending()) {
+		log_process();
+		k_yield();
+	}
+	sys_reboot(0);
+}
+#endif /* CONFIG_SOFTSIM */
+
 /* Atomic status flag tracking whether an initial association is in progress. */
 atomic_t initial_association;
 
@@ -559,6 +658,10 @@ static void check_credentials(void)
 
 void cloud_connection_thread_fn(void)
 {
+#if defined(CONFIG_SOFTSIM)
+	check_for_softsim();
+#endif
+
 	long_led_pattern(LED_WAITING);
 
 	LOG_INF("Enabling connectivity...");