From ecdde91dff3d81157ebad9b8e65e28d671a6d940 Mon Sep 17 00:00:00 2001
From: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
Date: Sat, 28 Sep 2019 15:31:43 +0200
Subject: [PATCH] Altera: - merge epcq and svf into the class - merge reset() -
 check in constructor file type to determine if bitstream is to send in   sram
 or spi flash

---
 altera.cpp | 63 ++++++++++++++++++++++++++++++++++++++++++++++++------
 altera.hpp |  8 ++++---
 2 files changed, 62 insertions(+), 9 deletions(-)

diff --git a/altera.cpp b/altera.cpp
index c37a74e..d7599a9 100644
--- a/altera.cpp
+++ b/altera.cpp
@@ -1,13 +1,64 @@
 #include "altera.hpp"
 #include "ftdijtag.hpp"
 #include "device.hpp"
+#include "epcq.hpp"
 
-Altera::Altera(FtdiJtag *jtag, enum prog_mode mode, std::string filename):Device(jtag, mode, filename),
-	_bitfile(filename)
-{}
+#define IDCODE 6
+#define IRLENGTH 10
+#define BIT_FOR_FLASH "/usr/local/share/cyc1000_prog/test_sfl.svf"
+
+Altera::Altera(FtdiJtag *jtag, std::string filename):Device(jtag, filename),
+	_svf(_jtag)
+{
+	if (_filename != "") {
+		if (_file_extension == "svf")
+			_mode = Device::MEM_MODE;
+		else
+			_mode = Device::SPI_MODE;
+	}
+}
 Altera::~Altera()
 {}
-void Altera::program()
-{}
+void Altera::reset()
+{
+	/* PULSE_NCONFIG */
+	unsigned char tx_buff[2] = {0x01, 0x00};
+	_jtag->set_state(FtdiJtag::TEST_LOGIC_RESET);
+	_jtag->shiftIR(tx_buff, NULL, IRLENGTH);
+	_jtag->toggleClk(1);
+	_jtag->set_state(FtdiJtag::TEST_LOGIC_RESET);
+}
+
+void Altera::program(unsigned int offset)
+{
+	if (_mode == Device::NONE_MODE)
+		return;
+	/* in all case we consider svf is mandatory
+	 * MEM_MODE : svf file provided for constructor
+	 *            is the bitstream to use
+	 * SPI_MODE : svf file provided is bridge to have
+	 *            access to the SPI flash
+	 */
+	/* mem mode -> svf */
+	if (_mode == Device::MEM_MODE) {
+		_svf.parse(_filename);
+	} else if (_mode == Device::SPI_MODE) {
+		/* GGM: TODO: fix this issue */
+		EPCQ epcq(_jtag->vid(), _jtag->pid(), 2, 6000000);
+		_svf.parse(BIT_FOR_FLASH);
+		epcq.program(offset, _filename, (_file_extension == "rpd")? true:false);
+		reset();
+	}
+}
 int Altera::idCode()
-{}
+{
+	unsigned char tx_data = IDCODE;
+	unsigned char rx_data[4];
+	_jtag->go_test_logic_reset();
+	_jtag->shiftIR(&tx_data, NULL, IRLENGTH);
+	_jtag->shiftDR(NULL, rx_data, 32);
+	return ((rx_data[0] & 0x000000ff) |
+		((rx_data[1] << 8) & 0x0000ff00) |
+		((rx_data[2] << 16) & 0x00ff0000) |
+		((rx_data[3] << 24) & 0xff000000));
+}
diff --git a/altera.hpp b/altera.hpp
index ed3c580..03def00 100644
--- a/altera.hpp
+++ b/altera.hpp
@@ -4,16 +4,18 @@
 #include "bitparser.hpp"
 #include "device.hpp"
 #include "ftdijtag.hpp"
+#include "svf_jtag.hpp"
 
 class Altera: public Device {
 	public:
-		Altera(FtdiJtag *jtag, enum prog_mode mode, std::string filename);
+		Altera(FtdiJtag *jtag, std::string filename);
 		~Altera();
 
-		void program();
+		void program(unsigned int offset = 0);
 		int idCode();
+		void reset() override;
 	private:
-		BitParser _bitfile;
+		SVF_jtag _svf;
 };
 
 #endif