altera: add verify and dump

src/altera.cpp

@@ -226,10 +226,37 @@ void Altera::program(unsigned int offset)
 		}
 
 		if (_verify)
-			printWarn("writing verification not supported");
+			epcq.verify(offset, data, length, 256);
 		reset();
 	}
 }
+
+bool Altera::dumpFlash(const std::string filename, uint32_t base_addr,
+		uint32_t len)
+{
+	int ret = true;
+	/* try to load spiOverJtag bridge
+	 * to have an access to SPI flash
+	 */
+	if (!load_bridge()) {
+		printError("Fail to load bridge");
+		return false;
+	}
+
+	EPCQ epcq(this, 0);
+
+	try {
+		epcq.reset();
+		ret = epcq.dump(filename, base_addr, len, 256);
+	} catch (std::exception &e) {
+		printError(e.what());
+		ret = false;
+	}
+
+	reset();
+	return ret;
+}
+
 int Altera::idCode()
 {
 	unsigned char tx_data[4] = {IDCODE};

src/altera.hpp

@@ -25,6 +25,16 @@ class Altera: public Device, SPIInterface {
 
 		void programMem(RawParser &_bit);
 		void program(unsigned int offset = 0) override;
+		/*!
+		 * \brief read len Byte starting at base_addr and store
+		 *        into filename
+		 * \param[in] filename: file name
+		 * \param[in] base_addr: starting address in flash memory
+		 * \param[in] len: length (in Byte)
+		 * \return false if read fails or filename can't be open, true otherwise
+		 */
+		bool dumpFlash(const std::string filename, uint32_t base_addr,
+				uint32_t len);
 		int idCode() override;
 		void reset() override;