gap/all: add Disconnect() to Driver

Signed-off-by: deadprogram <ron@hybridgroup.com>

examples/discover/main.go

@@ -73,6 +73,11 @@ func main() {
 		}
 	}
 
+	err = device.Disconnect()
+	if err != nil {
+		println(err)
+	}
+
 	done()
 }
 

gap_darwin.go

@@ -128,6 +128,12 @@ func (a *Adapter) Connect(address Addresser, params ConnectionParams) (*Device,
 	}
 }
 
+// Disconnect from the BLE device.
+func (d *Device) Disconnect() error {
+	d.cm.CancelConnect(d.prph)
+	return nil
+}
+
 // Peripheral delegate functions
 
 type peripheralDelegate struct {

gap_linux.go

@@ -266,3 +266,8 @@ func (a *Adapter) Connect(address Addresser, params ConnectionParams) (*Device,
 		device: dev,
 	}, nil
 }
+
+// Disconnect from the BLE device.
+func (d *Device) Disconnect() error {
+	return d.device.Disconnect()
+}

gap_nrf528xx.go

@@ -252,3 +252,13 @@ func (a *Adapter) Connect(address Addresser, params ConnectionParams) (*Device,
 		connectionHandle: connectionHandle,
 	}, nil
 }
+
+// Disconnect from the BLE device.
+func (d *Device) Disconnect() error {
+	errCode := C.sd_ble_gap_disconnect(d.connectionHandle, C.BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION)
+	if errCode != 0 {
+		return Error(errCode)
+	}
+
+	return nil
+}