Diff: source/CustomService.h

Revision:

0:6b34c49b5285

Child:

4:67ff1ddd11e2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/source/CustomService.h	Tue Apr 17 15:13:04 2018 +0000
@@ -0,0 +1,92 @@
+/**
+ *******************************************************************************
+ * @file    CustomService.h
+ * @author  Davide Aliprandi, STMicroelectronics
+ * @version V1.0.0
+ * @date    March 31st, 2018
+ * @brief   mbed test application for the STMicroelectronics X-NUCLEO-IDB05A1
+ *          Bluetooth Low energy Expansion Board.
+ *******************************************************************************
+ * @attention
+ *
+ * <h2><center>&copy; COPYRIGHT(c) 2018 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *   1. Redistributions of source code must retain the above copyright notice,
+ *      this list of conditions and the following disclaimer.
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *   3. Neither the name of STMicroelectronics nor the names of its
+ *      contributors may be used to endorse or promote products derived from
+ *      this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS 
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ *******************************************************************************
+ */
+ 
+
+#ifndef __BLE_CUSTOM_SERVICE_H__
+#define __BLE_CUSTOM_SERVICE_H__
+
+#include "ble_utils.h"
+
+#define STATE_DATA_LENGTH   (sizeof(uint16_t) + sizeof(uint8_t))
+#define COMMAND_DATA_LENGTH (sizeof(uint8_t))
+#define MAX_DATA_LENGTH     (STATE_DATA_LENGTH)
+
+const UUID::LongUUIDBytes_t CUSTOM_SWITCH_SERVICE_UUID        = {0x00,0x00,0x00,0x00,0x00,0x01,0x11,0xe1,0xac,0x36,0x00,0x02,0xa5,0xd5,0xc5,0x1b};
+const UUID::LongUUIDBytes_t CUSTOM_SWITCH_CHARACTERISTIC_UUID = {0x20,0x00,0x00,0x00,0x00,0x01,0x11,0xe1,0xac,0x36,0x00,0x02,0xa5,0xd5,0xc5,0x1b};
+
+class CustomService {
+public:
+
+    /* Switch states. */
+    typedef enum
+    {
+        SWITCH_OFF = 0,
+        SWITCH_ON
+    } switch_state_t;
+
+    CustomService(BLEDevice &_ble) :
+        ble(_ble),
+        state_command(CUSTOM_SWITCH_CHARACTERISTIC_UUID, packed_state_command, MAX_DATA_LENGTH, MAX_DATA_LENGTH,
+            /*GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | */GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY)
+    {
+        GattCharacteristic *char_table[] = {&state_command};
+        GattService switch_service(CUSTOM_SWITCH_SERVICE_UUID, char_table, sizeof(char_table) / sizeof(GattCharacteristic *));
+        ble.addService(switch_service);
+        memset (packed_state_command, 0, MAX_DATA_LENGTH);
+    }
+
+    void send_state(uint16_t time_stamp, uint8_t current_state) {
+        memset (packed_state_command, 0, MAX_DATA_LENGTH);
+        STORE_LE_16(packed_state_command, time_stamp);
+        packed_state_command[2] = current_state;
+        ble.gattServer().write(state_command.getValueAttribute().getHandle(), (uint8_t *) &packed_state_command, STATE_DATA_LENGTH, 0);
+    }
+
+    GattAttribute::Handle_t getValueHandle() const
+    {
+        return state_command.getValueAttribute().getHandle();
+    }
+
+private:
+    BLEDevice &ble;
+    GattCharacteristic state_command;
+    uint8_t packed_state_command[MAX_DATA_LENGTH];
+};
+
+#endif /* #ifndef __BLE_CUSTOM_SERVICE_H__ */