anlogic: add bit file support. SVF conversion is no more required

README.md

@@ -364,10 +364,24 @@ openFPGALoader -f -b littleBee impl/pnr/*.fs
 
 ### Sipeed Lichee Tang
 
-Due to a lack of information about FPGA configuration using JTAG, it's not
-possible to use directly the *.bit* file.
-The current way is to convert *.bit* to *.svf* by using a tool provided by
-[prjtang project](https://github.com/mmicko/prjtang)
+Support is currently limited to SRAM write
+
+For this target, *openFPGALoader* support *svf* and *bit*
+
+__bit file load__
+
+```bash
+openFPGALoader -b licheeTang /somewhere/project/prj/*.bit
+```
+
+__svf file load__
+
+It's possible to produce this file by using *TD*:
+* Tools->Device Chain
+* Add your bit file
+* Option : Create svf
+
+or by using [prjtang project](https://github.com/mmicko/prjtang)
 
 ```bash
 mkdir build
@@ -382,7 +396,6 @@ follow:
 tangbit --input /somewhere.bit --svf bitstream.svf
 ```
 
-__file load__:
 ```bash
 openFPGALoader -b licheeTang /somewhere/*.svf
 ```

src/anlogic.cpp

@@ -17,17 +17,26 @@
 
 #include <string.h>
 #include "anlogic.hpp"
+#include "anlogicBitParser.hpp"
 #include "jtag.hpp"
 #include "device.hpp"
+#include "progressBar.hpp"
+
+#define REFRESH      0x01
+#define IDCODE       0x06
+#define JTAG_PROGRAM 0x30
+#define SPI_PROGRAM  0x39
+#define CFG_IN       0x3b
+#define JTAG_START   0x3d
+#define BYPASS       0xFF
 
-#define IDCODE 6
 #define IRLENGTH 8
 
 Anlogic::Anlogic(Jtag *jtag, const std::string &filename, bool verbose):
 	Device(jtag, filename, verbose), _svf(_jtag, _verbose)
 {
 	if (_filename != "") {
-		if (_file_extension == "svf")
+		if (_file_extension == "svf" || _file_extension == "bit")
 			_mode = Device::MEM_MODE;
 		else
 			throw std::exception();
@@ -35,29 +44,89 @@ Anlogic::Anlogic(Jtag *jtag, const std::string &filename, bool verbose):
 }
 Anlogic::~Anlogic()
 {}
+
 void Anlogic::reset()
 {
+	_jtag->shiftIR(BYPASS, IRLENGTH);
+	_jtag->shiftIR(REFRESH, IRLENGTH);
+	_jtag->toggleClk(15);
+	_jtag->shiftIR(BYPASS, IRLENGTH);
+	_jtag->toggleClk(200000);
 }
 
 void Anlogic::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);
+		if (_file_extension == "svf") {
+			_svf.parse(_filename);
+			return;
+		}
+		AnlogicBitParser bit(_filename, _verbose);
+		bit.parse();
+
+		// Loading device with 'bypass' instruction.
+		_jtag->shiftIR(BYPASS, IRLENGTH);
+		_jtag->shiftIR(BYPASS, IRLENGTH);
+		// Verify Device id.
+		// SIR 8 TDI (06) ;
+		// SDR 32 TDI (00000000) TDO (0a014c35) MASK (ffffffff) ;
+		// Boundary Scan Chain Contents
+		// Position 1: BG256
+		// Loading device with 'refresh' instruction.
+		_jtag->shiftIR(REFRESH, IRLENGTH);
+		// Loading device with 'bypass' & 'spi_program' instruction.
+		_jtag->shiftIR(BYPASS, IRLENGTH);
+		_jtag->shiftIR(SPI_PROGRAM, IRLENGTH);
+		_jtag->toggleClk(50000);
+		// Loading device with 'jtag program' instruction.
+		_jtag->shiftIR(JTAG_PROGRAM, IRLENGTH);
+		_jtag->toggleClk(15);
+		// Loading device with a `cfg_in` instruction.
+		_jtag->shiftIR(CFG_IN, IRLENGTH);
+		_jtag->toggleClk(15);
+
+		uint8_t *data = bit.getData();
+		int len = bit.getLength() / 8;
+		_jtag->set_state(Jtag::SHIFT_DR);
+		ProgressBar progress("Loading", len, 50);
+		int pos = 0;
+		uint8_t *ptr = data;
+		while (len > 0) {
+			int xfer_len = (len > 512)?512:len;
+			_jtag->read_write(ptr, NULL, xfer_len*8, (len - xfer_len == 0));
+			len -= xfer_len;
+			progress.display(pos);
+			pos += xfer_len;
+			ptr+=xfer_len;
+		}
+
+		_jtag->set_state(Jtag::RUN_TEST_IDLE);
+		progress.done();
+		_jtag->toggleClk(100);
+		// Loading device with a `jtag start` instruction.
+		_jtag->shiftIR(JTAG_START, IRLENGTH);
+		_jtag->toggleClk(15);
+		// Loading device with 'bypass' instruction.
+		_jtag->shiftIR(BYPASS, IRLENGTH);
+		_jtag->toggleClk(1000);
+		// ??
+		_jtag->shiftIR(0x31, IRLENGTH);
+		_jtag->toggleClk(100);
+		_jtag->shiftIR(JTAG_START, IRLENGTH);
+		_jtag->toggleClk(15);
+		_jtag->shiftIR(BYPASS, IRLENGTH);
+		_jtag->toggleClk(15);
 	}
 }
+
 int Anlogic::idCode()
 {
-	unsigned char tx_data[4] = {IDCODE};
+	unsigned char tx_data[4];
 	unsigned char rx_data[4];
+
+	tx_data[0] = IDCODE;
 	_jtag->go_test_logic_reset();
 	_jtag->shiftIR(tx_data, NULL, IRLENGTH);
 	memset(tx_data, 0, 4);