lib: Add bossac 1.9 code to lib directory

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

lib/bossac/src/Samba.h

@@ -0,0 +1,115 @@
+///////////////////////////////////////////////////////////////////////////////
+// BOSSA
+//
+// Copyright (c) 2011-2018, ShumaTech
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * 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.
+//     * Neither the name of the <organization> 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 <COPYRIGHT HOLDER> BE 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 _SAMBA_H
+#define _SAMBA_H
+
+#include <string>
+#include <stdint.h>
+#include <exception>
+#include <memory>
+
+#include "SerialPort.h"
+
+class SambaError : public std::exception
+{
+public:
+    SambaError() : exception() {};
+    const char* what() const throw() { return "SAM-BA operation failed"; }
+};
+
+
+
+class Samba
+{
+public:
+    Samba();
+    virtual ~Samba();
+
+    bool connect(SerialPort::Ptr port, int bps = 115200);
+    void disconnect();
+
+    void writeByte(uint32_t addr, uint8_t value);
+    uint8_t readByte(uint32_t addr);
+
+    void writeWord(uint32_t addr, uint32_t value);
+    uint32_t readWord(uint32_t addr);
+
+    void write(uint32_t addr, const uint8_t* buffer, int size);
+    void read(uint32_t addr, uint8_t* buffer, int size);
+
+    void go(uint32_t addr);
+
+    std::string version();
+
+    void chipId(uint32_t& chipId, uint32_t& extChipId);
+
+    void setDebug(bool debug) { _debug = debug; }
+
+    const SerialPort& getSerialPort() { return *_port; }
+
+    void reset();
+
+    // Extended SAM-BA functions
+    bool canChipErase() { return _canChipErase; }
+    void chipErase(uint32_t start_addr);
+
+    bool canWriteBuffer() { return _canWriteBuffer; }
+    void writeBuffer(uint32_t src_addr, uint32_t dst_addr, uint32_t size);
+    uint32_t writeBufferSize() { return 4096; }
+    
+    bool canChecksumBuffer() { return _canChecksumBuffer; }
+    uint16_t checksumBuffer(uint32_t start_addr, uint32_t size);
+    uint32_t checksumBufferSize() { return 4096; }
+    uint16_t checksumCalc(uint8_t c, uint16_t crc);
+
+private:
+    bool _canChipErase;
+    bool _canWriteBuffer;
+    bool _canChecksumBuffer;
+    int _readBufferSize;
+    bool _debug;
+    bool _isUsb;
+    SerialPort::Ptr _port;
+
+    bool init();
+
+    uint16_t crc16Calc(const uint8_t *data, int len);
+    bool crc16Check(const uint8_t *blk);
+    void crc16Add(uint8_t *blk);
+    void writeXmodem(const uint8_t* buffer, int size);
+    void readXmodem(uint8_t* buffer, int size);
+
+    void writeBinary(const uint8_t* buffer, int size);
+    void readBinary(uint8_t* buffer, int size);
+
+};
+
+
+#endif // _SAMBA_H