[lib] developing csv writer for io pin table

libopenfpga/libpcf/src/io/write_csv_io_pin_table.cpp

@@ -0,0 +1,63 @@
+/********************************************************************
+ * This file includes the top-level function of this library
+ * which reads an XML of pin constraints to the associated
+ * data structures
+ *******************************************************************/
+#include <string>
+
+/* Headers from vtr util library */
+#include "vtr_assert.h"
+#include "vtr_time.h"
+#include "vtr_log.h"
+
+/* Headers from libopenfpga util library */
+#include "openfpga_port_parser.h"
+/* Headers from arch openfpga library */
+#include "write_xml_utils.h" 
+
+#include "csv.hpp"
+
+#include "write_csv_io_pin_table.h"
+
+/* Begin namespace openfpga */
+namespace openfpga {
+
+/********************************************************************
+ * Write I/O pin table to a csv file
+ * 
+ * Return 0 if successful
+ * Return 1 if there are more serious errors
+ * Return 2 if fail when creating files
+ *******************************************************************/
+int write_csv_io_pin_table(const char* fname,
+                           const IoPinTable& io_pin_table) {
+  vtr::ScopedStartFinishTimer timer("Write I/O Pin Table");
+
+  /* Create a file handler */
+  std::fstream fp;
+  /* Open the file stream */
+  fp.open(std::string(fname), std::fstream::out | std::fstream::trunc);
+
+  auto writer = csv::make_csv_writer(fp);
+
+  /* TODO: Move this to constants header file */
+  std::array<std::string, IoPinTable::NUM_IO_DIRECTIONS> IO_DIRECTION_STRING = {"input", "output"};
+
+  /* Print head row */
+  std::vector<std::string> head_row_str({"orientation", "port_name", "mapped_pin", "direction"});
+  writer << head_row_str << "\n";
+
+  /* Print data */
+  for (const IoPinTableId& pin_id : io_pin_table.pins()) {
+    std::vector<std::string> data_row_str;
+    data_row_str.append(SIDE_STRING[io_pin_table.pin_side(pin_id)]);
+    data_row_str.append(generate_xml_port_name(io_pin_table.internal_pin(pin_id)));
+    data_row_str.append(generate_xml_port_name(io_pin_table.external_pin(pin_id)));
+    data_row_str.append(IO_DIRECTION_STRING[io_pin_table.pin_direction(pin_id)]);
+    writer << data_row_str << "\n";
+  }
+
+  return 0;
+}
+
+} /* End namespace openfpga*/

libopenfpga/libpcf/src/io/write_csv_io_pin_table.h

@@ -0,0 +1,21 @@
+#ifndef WRITE_CSV_IO_PIN_TABLE_H
+#define WRITE_CSV_IO_PIN_TABLE_H
+
+/********************************************************************
+ * Include header files that are required by function declaration
+ *******************************************************************/
+#include <string>
+#include "io_pin_table.h"
+
+/********************************************************************
+ * Function declaration
+ *******************************************************************/
+/* Begin namespace openfpga */
+namespace openfpga {
+
+int write_csv_io_pin_table(const char* fname,
+                           const IoPinTable& io_pin_table);
+
+} /* End namespace openfpga*/
+
+#endif