add bluetooth support

app/prj.conf

@@ -16,4 +16,7 @@ CONFIG_LOG=y
 
 CONFIG_CFB_LOG_LEVEL_DBG=y
 CONFIG_CHARACTER_FRAMEBUFFER=y
-CONFIG_CBPRINTF_FP_SUPPORT=y
+CONFIG_CBPRINTF_FP_SUPPORT=y
+
+CONFIG_BT=y
+CONFIG_BT_DEVICE_NAME="Mellifera"

app/src/main.c

@@ -12,11 +12,75 @@
 
 #include <app_version.h>
 
+#include <zephyr/bluetooth/bluetooth.h>
+#include <zephyr/bluetooth/hci.h>
+
 LOG_MODULE_REGISTER(main, CONFIG_APP_LOG_LEVEL);
 
 #define BLINK_PERIOD_MS_STEP 100U
 #define BLINK_PERIOD_MS_MAX 1000U
 
+#define DEVICE_NAME CONFIG_BT_DEVICE_NAME
+#define DEVICE_NAME_LEN (sizeof(DEVICE_NAME) - 1)
+
+/*
+ * Set Advertisement data. Based on the Eddystone specification:
+ * https://github.com/google/eddystone/blob/master/protocol-specification.md
+ * https://github.com/google/eddystone/tree/master/eddystone-url
+ */
+static const struct bt_data ad[] = {
+	BT_DATA_BYTES(BT_DATA_FLAGS, BT_LE_AD_NO_BREDR),
+	BT_DATA_BYTES(BT_DATA_UUID16_ALL, 0xaa, 0xfe),
+	BT_DATA_BYTES(BT_DATA_SVC_DATA16,
+				  0xaa, 0xfe, /* Eddystone UUID */
+				  0x10,		  /* Eddystone-URL frame type */
+				  0x00,		  /* Calibrated Tx power at 0m */
+				  0x00,		  /* URL Scheme Prefix http://www. */
+				  'z', 'e', 'p', 'h', 'y', 'r',
+				  'p', 'r', 'o', 'j', 'e', 'c', 't',
+				  0x08) /* .org */
+};
+
+/* Set Scan Response data */
+static const struct bt_data sd[] = {
+	BT_DATA(BT_DATA_NAME_COMPLETE, DEVICE_NAME, DEVICE_NAME_LEN),
+};
+
+static void bt_ready(int err)
+{
+	char addr_s[BT_ADDR_LE_STR_LEN];
+	bt_addr_le_t addr = {0};
+	size_t count = 1;
+
+	if (err)
+	{
+		LOG_ERR("Bluetooth init failed (err %d)", err);
+		return;
+	}
+
+	LOG_INF("Bluetooth initialized");
+
+	/* Start advertising */
+	err = bt_le_adv_start(BT_LE_ADV_NCONN_IDENTITY, ad, ARRAY_SIZE(ad),
+						  sd, ARRAY_SIZE(sd));
+	if (err)
+	{
+		LOG_ERR("Advertising failed to start (err %d)", err);
+		return;
+	}
+
+	/* For connectable advertising you would use
+	 * bt_le_oob_get_local().  For non-connectable non-identity
+	 * advertising an non-resolvable private address is used;
+	 * there is no API to retrieve that.
+	 */
+
+	bt_id_get(&addr, &count);
+	bt_addr_le_to_str(&addr, addr_s, sizeof(addr_s));
+
+	LOG_INF("Beacon started, advertising as %s", addr_s);
+}
+
 int main(void)
 {
 	const struct device *dev;
@@ -27,13 +91,24 @@ int main(void)
 	uint8_t font_width;
 	uint8_t font_height;
 
+	int err;
+
 	printk("Starting Mellifera version %s...\n", APP_VERSION_STRING);
 	// printk("Board: %s\n", BOARD);
 
+	LOG_INF("Starting Beacon Demo");
+
+	/* Initialize the Bluetooth Subsystem */
+	err = bt_enable(bt_ready);
+	if (err)
+	{
+		LOG_ERR("Bluetooth init failed (err %d)", err);
+	}
+
 	dev = DEVICE_DT_GET(DT_CHOSEN(zephyr_display));
 	if (!device_is_ready(dev))
 	{
-		LOG_ERR("Device %s not ready\n", dev->name);
+		LOG_ERR("Device %s not ready", dev->name);
 		return 0;
 	}
 
@@ -46,11 +121,11 @@ int main(void)
 		}
 	}
 
-	LOG_INF("Initialized %s\n", dev->name);
+	LOG_INF("Initialized %s", dev->name);
 
 	if (cfb_framebuffer_init(dev))
 	{
-		LOG_ERR("Framebuffer initialization failed!\n");
+		LOG_ERR("Framebuffer initialization failed!");
 		return 0;
 	}
 
@@ -89,37 +164,37 @@ int main(void)
 	ina = DEVICE_DT_GET(DT_NODELABEL(ina231));
 	if (!device_is_ready(ina))
 	{
-		LOG_ERR("Device %s not ready\n", ina->name);
+		LOG_ERR("Device %s not ready", ina->name);
 		return 0;
 	}
 
 	bmp = DEVICE_DT_GET(DT_NODELABEL(bmp388));
 	if (!device_is_ready(bmp))
 	{
-		LOG_ERR("Device %s not ready\n", bmp->name);
+		LOG_ERR("Device %s not ready", bmp->name);
 		return 0;
 	}
 
 	bmx = DEVICE_DT_GET(DT_NODELABEL(bmx055));
 	if (!device_is_ready(bmx))
 	{
-		LOG_ERR("Device %s not ready\n", bmx->name);
+		LOG_ERR("Device %s not ready", bmx->name);
 		return 0;
 	}
-	LOG_INF("Initialized %s\n", bmx->name);
+	LOG_INF("Initialized %s", bmx->name);
 
 	lis = DEVICE_DT_GET(DT_NODELABEL(lis2dh));
 	if (!device_is_ready(lis))
 	{
-		LOG_ERR("Device %s not ready\n", lis->name);
+		LOG_ERR("Device %s not ready", lis->name);
 		return 0;
 	}
-	LOG_INF("Initialized %s\n", lis->name);
+	LOG_INF("Initialized %s", lis->name);
 
 	hdc = DEVICE_DT_GET(DT_NODELABEL(hdc1080));
 	if (!device_is_ready(hdc))
 	{
-		printf("Device %s not ready\n", hdc->name);
+		LOG_ERR("Device %s not ready", hdc->name);
 		return 0;
 	}
 
@@ -246,7 +321,7 @@ int main(void)
 		sprintf(str_ay, "Y :%+7.3f", accel_y.val1 + accel_y.val2 * 1e-6);
 		sprintf(str_az, "Z :%+7.3f", accel_z.val1 + accel_z.val2 * 1e-6);
 		sprintf(str_az_ref, "Zr:%+7.3f", accel_z_ref.val1 + accel_z_ref.val2 * 1e-6);
-		sprintf(str_h, "H :%7.5f", humidity.val1 + humidity.val2 * 1e-6);
+		sprintf(str_h, "H :%7.3f", humidity.val1 + humidity.val2 * 1e-6);
 
 		// printf("%s\t%s\t%s\t%s\n", str_v, str_i, str_p, str_t);
 

boards/bh/mellifera_rev1/mellifera_rev1.dts

@@ -188,3 +188,29 @@
 	pinctrl-1 = <&spi1_sleep>;
 	pinctrl-names = "default", "sleep";
 };
+
+&flash0 {
+
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		boot_partition: partition@0 {
+			label = "mcuboot";
+			reg = <0x00000000 0xc000>;
+		};
+		slot0_partition: partition@c000 {
+			label = "image-0";
+			reg = <0x0000C000 0x37000>;
+		};
+		slot1_partition: partition@43000 {
+			label = "image-1";
+			reg = <0x00043000 0x37000>;
+		};
+		storage_partition: partition@7a000 {
+			label = "storage";
+			reg = <0x0007a000 0x00006000>;
+		};
+	};
+};