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libraries/FirmataWithDeviceFeature/src-features/OneWireFirmata.h

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+/*
+  OneWireFirmata.h - Firmata library
+  Copyright (C) 2012-2013 Norbert Truchsess. All rights reserved.
+  Copyright (C) 2016 Jeff Hoefs. All rights reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  See file LICENSE.txt for further informations on licensing terms.
+*/
+
+#ifndef OneWireFirmata_h
+#define OneWireFirmata_h
+
+#include <ConfigurableFirmata.h>
+#include "utility/OneWire.h"
+#include "FirmataFeature.h"
+
+//subcommands:
+#define ONEWIRE_SEARCH_REQUEST 0x40
+#define ONEWIRE_CONFIG_REQUEST 0x41
+#define ONEWIRE_SEARCH_REPLY 0x42
+#define ONEWIRE_READ_REPLY 0x43
+#define ONEWIRE_SEARCH_ALARMS_REQUEST 0x44
+#define ONEWIRE_SEARCH_ALARMS_REPLY 0x45
+
+#define ONEWIRE_RESET_REQUEST_BIT 0x01
+#define ONEWIRE_SKIP_REQUEST_BIT 0x02
+#define ONEWIRE_SELECT_REQUEST_BIT 0x04
+#define ONEWIRE_READ_REQUEST_BIT 0x08
+#define ONEWIRE_DELAY_REQUEST_BIT 0x10
+#define ONEWIRE_WRITE_REQUEST_BIT 0x20
+
+#define ONEWIRE_WITHDATA_REQUEST_BITS 0x3C
+
+#define ONEWIRE_CRC 0 //for OneWire.h: crc-functions are not used by Firmata
+
+//default value for power:
+#define ONEWIRE_POWER 1
+
+struct ow_device_info
+{
+  OneWire* device;
+  byte addr[8];
+  boolean power;
+};
+
+class OneWireFirmata: public FirmataFeature
+{
+  public:
+    boolean handlePinMode(byte pin, int mode);
+    void handleCapability(byte pin);
+    boolean handleSysex(byte command, byte argc, byte* argv);
+    void reset();
+
+  private:
+    ow_device_info pinOneWire[TOTAL_PINS];
+    void oneWireConfig(byte pin, boolean power);
+};
+
+#endif