Added ble code

data/CMakeLists.txt

@@ -9,4 +9,5 @@ find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
 
 project(app LANGUAGES C)
 
-target_sources(app PRIVATE src/main.c)
+FILE(GLOB app_sources src/*.c)
+target_sources(app PRIVATE ${app_sources})

data/main.c

@@ -6,9 +6,6 @@
 #include <zephyr/kernel.h>
 #include <app_version.h>
 
-#include <zephyr/logging/log.h>
-LOG_MODULE_REGISTER(main, CONFIG_APP_LOG_LEVEL);
-
 int main(void)
 {
 	printk("Zephyr Example Application %s\n", APP_VERSION_STRING);

script.sh

@@ -124,7 +124,18 @@ connectivity_dialog() {
             # TODO
         ;;
         2 ) # Bluetooth
-            # TODO
+            sed -i '/int main(void)/e cat snippets/ble_gatt/code1.txt' /workdir/app/src/main.c
+
+            code2=$(cat snippets/ble_gatt/code2.txt)
+            echo "$code2" >> /workdir/app/src/peripheral_gatt_write.c
+            
+            code3=$(cat snippets/ble_gatt/code3.txt)
+            echo "$code3" >> /workdir/app/src/gatt_write_common.c
+            
+            config=$(cat snippets/ble_gatt/config.txt)
+            echo "$config" >> /workdir/app/prj.conf
+            
+            display_result 'Added functionality' "Added functionality successfully at the end of main.c.\nYou have to call the function like in the example manually."
         ;;
         3 ) # LoRaWAN
             # TODO
@@ -188,8 +199,7 @@ sensors_dialog() {
     
     case $sensors in
         1 ) # Button
-            code=$(cat snippets/button/code.txt)
-            echo "$code" >> /workdir/app/src/main.c
+            sed -i '/int main(void)/e cat snippets/button/code.txt' /workdir/app/src/main.c
 
             config=$(cat snippets/button/config.txt)
             echo "$config" >> /workdir/app/prj.conf
@@ -217,8 +227,7 @@ actuators_dialog() {
     
     case $actuators in
         1 ) # LED
-            code=$(cat snippets/led/code.txt)
-            echo "$code" >> /workdir/app/src/main.c
+            sed -i '/int main(void)/e cat snippets/led/code.txt' /workdir/app/src/main.c
             
             config=$(cat snippets/led/config.txt)
             echo "$config" >> /workdir/app/prj.conf
@@ -258,7 +267,12 @@ init_project() {
 build_project() {
     plattform_dialog
 
-    { cd /workdir/app/; west build -b $PLATTFORM; } 2>&1 | dialog --programbox -1 -1
+    clear
+
+    cd /workdir/app/
+    west build -b $PLATTFORM
+
+    read -p "Press any key to continue... " -n1 -s
 }
 
 flash_project() {

snippets/ble_gatt/code1.txt

@@ -0,0 +1,26 @@
+
+
+/* --------------------------- */
+/*              BLE            */
+/* --------------------------- */
+
+/* Imports / Declarations */
+#include <stdint.h>
+
+/* Functions */
+extern uint32_t peripheral_gatt_write(uint32_t count);
+
+/*
+Example:
+
+int main(void)
+{
+	(void)peripheral_gatt_write(0U);
+	return 0;
+}
+*/
+
+/* --------------------------- */
+/*            BLE End          */
+/* --------------------------- */
+

snippets/ble_gatt/code2.txt

@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2022 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/kernel.h>
+#include <zephyr/sys/printk.h>
+
+#include <zephyr/bluetooth/bluetooth.h>
+#include <zephyr/bluetooth/conn.h>
+#include <zephyr/bluetooth/gatt.h>
+
+extern int mtu_exchange(struct bt_conn *conn);
+extern int write_cmd(struct bt_conn *conn);
+extern struct bt_conn *conn_connected;
+extern uint32_t last_write_rate;
+
+static const struct bt_data ad[] = {
+	BT_DATA_BYTES(BT_DATA_FLAGS, (BT_LE_AD_GENERAL | BT_LE_AD_NO_BREDR)),
+};
+
+static void mtu_updated(struct bt_conn *conn, uint16_t tx, uint16_t rx)
+{
+	printk("Updated MTU: TX: %d RX: %d bytes\n", tx, rx);
+}
+
+#if defined(CONFIG_BT_SMP)
+static void auth_cancel(struct bt_conn *conn)
+{
+	char addr[BT_ADDR_LE_STR_LEN];
+
+	bt_addr_le_to_str(bt_conn_get_dst(conn), addr, sizeof(addr));
+
+	printk("Pairing cancelled: %s\n", addr);
+}
+
+static struct bt_conn_auth_cb auth_callbacks = {
+	.cancel = auth_cancel,
+};
+#endif /* CONFIG_BT_SMP */
+
+static struct bt_gatt_cb gatt_callbacks = {
+	.att_mtu_updated = mtu_updated
+};
+
+uint32_t peripheral_gatt_write(uint32_t count)
+{
+	int err;
+
+	err = bt_enable(NULL);
+	if (err) {
+		printk("Bluetooth init failed (err %d)\n", err);
+		return 0U;
+	}
+
+	printk("Bluetooth initialized\n");
+
+	bt_gatt_cb_register(&gatt_callbacks);
+
+#if defined(CONFIG_BT_SMP)
+	(void)bt_conn_auth_cb_register(&auth_callbacks);
+#endif /* CONFIG_BT_SMP */
+
+	err = bt_le_adv_start(BT_LE_ADV_CONN_NAME, ad, ARRAY_SIZE(ad), NULL, 0);
+	if (err) {
+		printk("Advertising failed to start (err %d)\n", err);
+		return 0U;
+	}
+
+	printk("Advertising successfully started\n");
+
+	conn_connected = NULL;
+	last_write_rate = 0U;
+
+	while (true) {
+		struct bt_conn *conn = NULL;
+
+		if (conn_connected) {
+			/* Get a connection reference to ensure that a
+			 * reference is maintained in case disconnected
+			 * callback is called while we perform GATT Write
+			 * command.
+			 */
+			conn = bt_conn_ref(conn_connected);
+		}
+
+		if (conn) {
+			write_cmd(conn);
+			bt_conn_unref(conn);
+
+			if (count) {
+				count--;
+				if (!count) {
+					break;
+				}
+			}
+
+			k_yield();
+		} else {
+			k_sleep(K_SECONDS(1));
+		}
+	}
+
+	return last_write_rate;
+}

snippets/ble_gatt/code3.txt

@@ -0,0 +1,226 @@
+/*
+ * Copyright (c) 2022 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/kernel.h>
+#include <zephyr/sys/printk.h>
+
+#include <zephyr/bluetooth/bluetooth.h>
+#include <zephyr/bluetooth/conn.h>
+#include <zephyr/bluetooth/gatt.h>
+
+static struct bt_gatt_exchange_params mtu_exchange_params;
+static uint32_t write_count;
+static uint32_t write_len;
+static uint32_t write_rate;
+struct bt_conn *conn_connected;
+uint32_t last_write_rate;
+void (*start_scan_func)(void);
+
+static void write_cmd_cb(struct bt_conn *conn, void *user_data)
+{
+	static uint32_t cycle_stamp;
+	uint64_t delta;
+
+	delta = k_cycle_get_32() - cycle_stamp;
+	delta = k_cyc_to_ns_floor64(delta);
+
+	/* if last data rx-ed was greater than 1 second in the past,
+	 * reset the metrics.
+	 */
+	if (delta > (1U * NSEC_PER_SEC)) {
+		printk("%s: count= %u, len= %u, rate= %u bps.\n", __func__,
+		       write_count, write_len, write_rate);
+
+		last_write_rate = write_rate;
+
+		write_count = 0U;
+		write_len = 0U;
+		write_rate = 0U;
+		cycle_stamp = k_cycle_get_32();
+	} else {
+		uint16_t len;
+
+		write_count++;
+
+		/* Extract the 16-bit data length stored in user_data */
+		len = (uint32_t)user_data & 0xFFFF;
+
+		write_len += len;
+		write_rate = ((uint64_t)write_len << 3) * (1U * NSEC_PER_SEC) /
+			     delta;
+	}
+}
+
+static void mtu_exchange_cb(struct bt_conn *conn, uint8_t err,
+			    struct bt_gatt_exchange_params *params)
+{
+	printk("%s: MTU exchange %s (%u)\n", __func__,
+	       err == 0U ? "successful" : "failed",
+	       bt_gatt_get_mtu(conn));
+}
+
+static int mtu_exchange(struct bt_conn *conn)
+{
+	int err;
+
+	printk("%s: Current MTU = %u\n", __func__, bt_gatt_get_mtu(conn));
+
+	mtu_exchange_params.func = mtu_exchange_cb;
+
+	printk("%s: Exchange MTU...\n", __func__);
+	err = bt_gatt_exchange_mtu(conn, &mtu_exchange_params);
+	if (err) {
+		printk("%s: MTU exchange failed (err %d)", __func__, err);
+	}
+
+	return err;
+}
+
+static void connected(struct bt_conn *conn, uint8_t conn_err)
+{
+	struct bt_conn_info conn_info;
+	char addr[BT_ADDR_LE_STR_LEN];
+	int err;
+
+	bt_addr_le_to_str(bt_conn_get_dst(conn), addr, sizeof(addr));
+
+	if (conn_err) {
+		printk("%s: Failed to connect to %s (%u)\n", __func__, addr,
+		       conn_err);
+		return;
+	}
+
+	err = bt_conn_get_info(conn, &conn_info);
+	if (err) {
+		printk("Failed to get connection info (%d).\n", err);
+		return;
+	}
+
+	printk("%s: %s role %u\n", __func__, addr, conn_info.role);
+
+	conn_connected = bt_conn_ref(conn);
+
+	(void)mtu_exchange(conn);
+
+#if defined(CONFIG_BT_SMP)
+	if (conn_info.role == BT_CONN_ROLE_CENTRAL) {
+		err = bt_conn_set_security(conn, BT_SECURITY_L2);
+		if (err) {
+			printk("Failed to set security (%d).\n", err);
+		}
+	}
+#endif
+}
+
+static void disconnected(struct bt_conn *conn, uint8_t reason)
+{
+	struct bt_conn_info conn_info;
+	char addr[BT_ADDR_LE_STR_LEN];
+	int err;
+
+	bt_addr_le_to_str(bt_conn_get_dst(conn), addr, sizeof(addr));
+
+	err = bt_conn_get_info(conn, &conn_info);
+	if (err) {
+		printk("Failed to get connection info (%d).\n", err);
+		return;
+	}
+
+	printk("%s: %s role %u (reason %u)\n", __func__, addr, conn_info.role,
+	       reason);
+
+	conn_connected = NULL;
+
+	bt_conn_unref(conn);
+
+	if (conn_info.role == BT_CONN_ROLE_CENTRAL) {
+		start_scan_func();
+	}
+}
+
+static bool le_param_req(struct bt_conn *conn, struct bt_le_conn_param *param)
+{
+	printk("%s: int (0x%04x, 0x%04x) lat %u to %u\n", __func__,
+	       param->interval_min, param->interval_max, param->latency,
+	       param->timeout);
+
+	return true;
+}
+
+static void le_param_updated(struct bt_conn *conn, uint16_t interval,
+			     uint16_t latency, uint16_t timeout)
+{
+	printk("%s: int 0x%04x lat %u to %u\n", __func__, interval,
+	       latency, timeout);
+}
+
+#if defined(CONFIG_BT_SMP)
+static void security_changed(struct bt_conn *conn, bt_security_t level,
+			     enum bt_security_err err)
+{
+	printk("%s: to level %u (err %u)\n", __func__, level, err);
+}
+#endif
+
+BT_CONN_CB_DEFINE(conn_callbacks) = {
+	.connected = connected,
+	.disconnected = disconnected,
+	.le_param_req = le_param_req,
+	.le_param_updated = le_param_updated,
+#if defined(CONFIG_BT_SMP)
+	.security_changed = security_changed,
+#endif
+};
+
+int write_cmd(struct bt_conn *conn)
+{
+	static uint8_t data[BT_ATT_MAX_ATTRIBUTE_LEN] = {0, };
+	static uint16_t data_len;
+	uint16_t data_len_max;
+	int err;
+
+	data_len_max = bt_gatt_get_mtu(conn) - 3;
+	if (data_len_max > BT_ATT_MAX_ATTRIBUTE_LEN) {
+		data_len_max = BT_ATT_MAX_ATTRIBUTE_LEN;
+	}
+
+#if TEST_FRAGMENTATION_WITH_VARIABLE_LENGTH_DATA
+	/* Use incremental length data for every write command */
+	/* TODO: Include test case in BabbleSim tests */
+	static bool decrement;
+
+	if (decrement) {
+		data_len--;
+		if (data_len <= 1) {
+			data_len = 1;
+			decrement = false;
+		}
+	} else {
+		data_len++;
+		if (data_len >= data_len_max) {
+			data_len = data_len_max;
+			decrement = true;
+		}
+	}
+#else
+	/* Use fixed length data for every write command */
+	data_len = data_len_max;
+#endif
+
+	/* Pass the 16-bit data length value (instead of reference) in
+	 * user_data so that unique value is pass for each write callback.
+	 * Using handle 0x0001, we do not care if it is writable, we just want
+	 * to transmit the data across.
+	 */
+	err = bt_gatt_write_without_response_cb(conn, 0x0001, data, data_len,
+						false, write_cmd_cb,
+						(void *)((uint32_t)data_len));
+	if (err) {
+		printk("%s: Write cmd failed (%d).\n", __func__, err);
+	}
+
+	return err;
+}

snippets/ble_gatt/config.txt

@@ -0,0 +1,14 @@
+CONFIG_BT=y
+CONFIG_BT_PERIPHERAL=y
+CONFIG_BT_SMP=y
+CONFIG_BT_GATT_CLIENT=y
+CONFIG_BT_DEVICE_NAME="Zephyr GATT Write Example"
+
+CONFIG_BT_BUF_ACL_RX_SIZE=255
+CONFIG_BT_BUF_ACL_TX_SIZE=251
+CONFIG_BT_BUF_CMD_TX_SIZE=255
+CONFIG_BT_BUF_EVT_DISCARDABLE_SIZE=255
+
+CONFIG_BT_L2CAP_TX_MTU=247
+
+CONFIG_LOG=y

snippets/button/code.txt

@@ -114,3 +114,8 @@ int main(void)
 	return 0;
 }
 */
+
+/* --------------------------- */
+/*          Buttons End        */
+/* --------------------------- */
+

snippets/led/code.txt

@@ -56,3 +56,8 @@ int main(void)
 	return 0;
 }
 */
+
+/* --------------------------- */
+/*            LED End          */
+/* --------------------------- */
+