lib: Add bossac 1.9 code to lib directory

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

lib/bossac/src/D2xNvmFlash.h

@@ -0,0 +1,76 @@
+///////////////////////////////////////////////////////////////////////////////
+// BOSSA
+//
+// Copyright (c) 2018, ShumaTech
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _D2XNVMFLASH_H
+#define _D2XNVMFLASH_H
+
+#include <stdint.h>
+#include <exception>
+
+#include "Flash.h"
+
+class D2xNvmFlash : public Flash
+{
+public:
+    D2xNvmFlash(
+        Samba& samba,
+        const std::string& name,
+        uint32_t pages,
+        uint32_t size,
+        uint32_t user,
+        uint32_t stack);
+
+    virtual ~D2xNvmFlash();
+
+    void eraseAll(uint32_t offset);
+    void eraseAuto(bool enable);
+
+    std::vector<bool> getLockRegions();
+
+    bool getSecurity();
+
+    bool getBod();
+    bool canBod() { return true; }
+
+    bool getBor();
+    bool canBor() { return true; }
+
+    bool getBootFlash();
+    bool canBootFlash() { return false; }
+
+    void writeOptions();
+
+    void writePage(uint32_t page);
+    void readPage(uint32_t page, uint8_t* data);
+
+    void writeBuffer(uint32_t dst_addr, uint32_t size);
+
+protected:
+    bool     _eraseAuto;
+
+    uint32_t readReg(uint8_t reg);
+    void writeReg(uint8_t reg, uint32_t value);
+
+    void waitReady();
+    void command(uint8_t cmd);
+    void erase(uint32_t offset, uint32_t size);
+    void readUserRow(std::unique_ptr<uint8_t[]>& userRow);
+};
+
+#endif // _D2XNVMFLASH_H