Diff: PowerService.h

Revision:

9:6a28d9c0e486

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PowerService.h	Wed Jul 22 16:03:03 2015 +0000
@@ -0,0 +1,85 @@
+#pragma once
+#ifndef __POWER_SERVICE_H__
+#define __POWER_SERVICE_H__
+
+#include "BLE.h"
+
+class PowerService
+{
+    public:
+        enum
+        {
+            UUID_POWER_SERVICE          = 0xA300,
+            UUID_POWER_VOLTAGE_CHAR     = 0xA301,
+            UUID_POWER_CURRENT_CHAR     = 0xA302,
+            UUID_POWER_DISCHARGE_CHAR   = 0xA303
+        };
+    
+        PowerService
+        (
+            BLE    &ble,
+            float   initialVoltage = 0.0f,
+            float   initialCurrent = 0.0f,
+            float   initialDischarge = 0.0f
+        ) :
+            gattServer(ble.gattServer()),
+            voltageCharacteristic
+            (
+                UUID_POWER_VOLTAGE_CHAR,
+                (float*)&initialVoltage,
+                GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY
+            ),
+            currentCharacteristic
+            (
+                UUID_POWER_CURRENT_CHAR,
+                (float*)&initialCurrent,
+                GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY
+            ),
+            dischargeCharacteristic
+            (
+                UUID_POWER_DISCHARGE_CHAR,
+                (float*)&initialDischarge,
+                GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY
+            )
+        {
+            static bool serviceAdded = false;
+            if (serviceAdded)
+                return;
+                
+            GattCharacteristic *charTable[] =
+            {
+                &voltageCharacteristic,
+                &currentCharacteristic,
+                &dischargeCharacteristic
+            };
+            
+            GattService powerService(UUID_POWER_SERVICE, charTable, sizeof(charTable) / sizeof(GattCharacteristic*));
+            
+            gattServer.addService(powerService);
+            
+            serviceAdded = true;
+        }
+        
+        void updateVoltage(float voltage)
+        {
+            gattServer.write(voltageCharacteristic.getValueHandle(), (uint8_t*)&voltage, sizeof(float));
+        }
+        
+        void updateCurrent(float current)
+        {
+            gattServer.write(currentCharacteristic.getValueHandle(), (uint8_t*)&current, sizeof(float));
+        }
+        
+        void updateDischarge(float discharge)
+        {
+            gattServer.write(dischargeCharacteristic.getValueHandle(), (uint8_t*)&discharge, sizeof(float));
+        }
+    
+    private:
+        GattServer                         &gattServer;
+        ReadOnlyGattCharacteristic<float>   voltageCharacteristic;
+        ReadOnlyGattCharacteristic<float>   currentCharacteristic;
+        ReadOnlyGattCharacteristic<float>   dischargeCharacteristic;
+};
+
+#endif
\ No newline at end of file