Added new bluetooth samples

snippets/bluetooth/button/button_svc.c

@@ -0,0 +1,54 @@
+/** @file
+ *  @brief Button Service sample
+ */
+
+/*
+ * Copyright (c) 2019 Marcio Montenegro <mtuxpe@gmail.com>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "button_svc.h"
+
+#include <zephyr/kernel.h>
+#include <zephyr/logging/log.h>
+
+#include <zephyr/bluetooth/bluetooth.h>
+#include <zephyr/bluetooth/hci.h>
+#include <zephyr/bluetooth/conn.h>
+#include <zephyr/bluetooth/uuid.h>
+#include <zephyr/bluetooth/gatt.h>
+
+LOG_MODULE_REGISTER(button_svc);
+
+static const struct gpio_dt_spec button = GPIO_DT_SPEC_GET(DT_ALIAS(sw0), gpios);
+static struct gpio_callback gpio_cb;
+
+int button_init(gpio_callback_handler_t handler)
+{
+	int ret;
+
+	if (!gpio_is_ready_dt(&button)) {
+		LOG_ERR("Error: button GPIO device %s is not ready",
+			button.port->name);
+		return -ENODEV;
+	}
+
+	ret = gpio_pin_configure_dt(&button, GPIO_INPUT);
+	if (ret != 0) {
+		LOG_ERR("Error %d: can't configure button on GPIO %s pin %d",
+			ret, button.port->name, button.pin);
+		return ret;
+
+	}
+
+	gpio_init_callback(&gpio_cb, handler, BIT(button.pin));
+	gpio_add_callback(button.port, &gpio_cb);
+	ret = gpio_pin_interrupt_configure_dt(&button, GPIO_INT_EDGE_TO_ACTIVE);
+	if (ret != 0) {
+		LOG_ERR("Error %d: can't configure button interrupt on "
+			"GPIO %s pin %d", ret, button.port->name, button.pin);
+		return ret;
+	}
+	return 0;
+}

snippets/bluetooth/button/button_svc.h

@@ -0,0 +1,26 @@
+/** @file
+ *  @brief Button Service
+ */
+
+/*
+ * Copyright (c) 2019 Marcio Montenegro <mtuxpe@gmail.com>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef ST_BLE_SENSOR_BUTTON_SVC_H_
+#define ST_BLE_SENSOR_BUTTON_SVC_H_
+
+#include <zephyr/drivers/gpio.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int button_init(gpio_callback_handler_t handler);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

snippets/bluetooth/button/code1.txt

@@ -0,0 +1,21 @@
+static void button_callback(const struct device *gpiob, struct gpio_callback *cb, uint32_t pins)
+{
+	int err;
+
+	LOG_INF("Button pressed");
+	if (ble_conn) {
+		if (notify_enable) {
+			err = bt_gatt_notify(NULL, &stsensor_svc.attrs[4], &but_val, sizeof(but_val));
+			if (err) {
+				LOG_ERR("Notify error: %d", err);
+			} else {
+				LOG_INF("Send notify ok");
+				but_val = (but_val == 0) ? 0x100 : 0;
+			}
+		} else {
+			LOG_INF("Notify not enabled");
+		}
+	} else {
+		LOG_INF("BLE not connected");
+	}
+}

snippets/bluetooth/button/code2.txt

@@ -0,0 +1,17 @@
+
+
+/* --------------------------- */
+/*             Button          */
+/* --------------------------- */
+/*
+Example:
+
+err = button_init(button_callback);
+if (err) {
+	return 0;
+}
+*/
+/* --------------------------- */
+/*          Button LED         */
+/* --------------------------- */
+