1 files changed, 94 insertions, 0 deletions
diff --git a/lib/msp430/Wire.h b/lib/msp430/Wire.h
new file mode 100644
index 0000000..3f633c4
--- /dev/null
+++ b/lib/msp430/Wire.h
@@ -0,0 +1,94 @@
+/*
+  ************************************************************************
+  *	Wire.h
+  *
+  *	Arduino core files for MSP430
+  *		Copyright (c) 2012 Robert Wessels. All right reserved.
+  *
+  *
+  ***********************************************************************
+  Derived from:
+  TwoWire.h - TWI/I2C library for Arduino & Wiring
+  Copyright (c) 2006 Nicholas Zambetti.  All right 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.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+  Modified 2012 by Todd Krein (todd@krein.org) to implement repeated starts
+*/
+
+#ifndef TwoWire_h
+#define TwoWire_h
+
+#include <inttypes.h>
+#include "Stream.h"
+
+#define BUFFER_LENGTH 16
+
+class TwoWire : public Stream
+{
+  private:
+    static uint8_t rxBuffer[];
+    static uint8_t rxBufferIndex;
+    static uint8_t rxBufferLength;
+
+    static uint8_t txAddress;
+    static uint8_t txBuffer[];
+    static uint8_t txBufferIndex;
+    static uint8_t txBufferLength;
+
+    static uint8_t transmitting;
+    static void (*user_onRequest)(void);
+    static void (*user_onReceive)(int);
+    static void onRequestService(void);
+    static void onReceiveService(uint8_t*, int);
+  public:
+    TwoWire();
+    void begin();
+    void begin(uint8_t);
+    void begin(int);
+    void beginTransmission(uint8_t);
+    void beginTransmission(int);
+    uint8_t endTransmission(void);
+    uint8_t endTransmission(uint8_t);
+    uint8_t requestFrom(uint8_t, uint8_t);
+    uint8_t requestFrom(uint8_t, uint8_t, uint8_t);
+    uint8_t requestFrom(int, int);
+    uint8_t requestFrom(int, int, int);
+    virtual size_t write(uint8_t);
+    virtual size_t write(const uint8_t *, size_t);
+    virtual int available(void);
+    virtual int read(void);
+    virtual int peek(void);
+    virtual void flush(void);
+#define USCI_ERROR "\n*********\nI2C Slave is not implemented for this MSP430. \nConsider using using a MSP430 with USCI peripheral e.g. MSP430G2553.\n*********\n"
+#if defined(__MSP430_HAS_USCI__) || defined(__MSP430_HAS_EUSCI_A0__)
+    void onReceive( void (*)(int) );
+    void onRequest( void (*)(void) );
+#else
+    void onReceive( void (*)(int) ) __attribute__ ((error(USCI_ERROR)));
+    void onRequest( void (*)(void) ) __attribute__ ((error(USCI_ERROR)));
+#endif
+  
+    inline size_t write(unsigned long n) { return write((uint8_t)n); }
+    inline size_t write(long n) { return write((uint8_t)n); }
+    inline size_t write(unsigned int n) { return write((uint8_t)n); }
+    inline size_t write(int n) { return write((uint8_t)n); }
+    using Print::write;
+};
+
+extern TwoWire Wire;
+
+#endif
+