From 2f434fd4d31422c637f49c34d93bbe0c992cda5f Mon Sep 17 00:00:00 2001
From: tangxifan <tangxifan@gmail.com>
Date: Mon, 17 Oct 2022 12:35:06 -0700
Subject: [PATCH] [lib] developing pin dir convention support

---
 libs/libpcf/src/io/read_csv_io_pin_table.cpp | 24 +++++++++++---------
 libs/libpcf/src/io/read_csv_io_pin_table.h   | 10 +++++++-
 2 files changed, 22 insertions(+), 12 deletions(-)

diff --git a/libs/libpcf/src/io/read_csv_io_pin_table.cpp b/libs/libpcf/src/io/read_csv_io_pin_table.cpp
index 0a1e90d9c..8f07e1b7d 100644
--- a/libs/libpcf/src/io/read_csv_io_pin_table.cpp
+++ b/libs/libpcf/src/io/read_csv_io_pin_table.cpp
@@ -29,7 +29,7 @@ constexpr const char* DIRECTION_OUTPUT = "out";
 /********************************************************************
  * Parse XML codes about <pin_constraints> to an object of PinConstraints
  *******************************************************************/
-IoPinTable read_csv_io_pin_table(const char* fname) {
+IoPinTable read_csv_io_pin_table(const char* fname, const e_pin_table_direction_convention& pin_dir_convention) {
   vtr::ScopedStartFinishTimer timer("Read I/O Pin Table");
 
   IoPinTable io_pin_table;
@@ -66,16 +66,18 @@ IoPinTable read_csv_io_pin_table(const char* fname) {
 
     /*This is not general purpose: we should have an explicit attribute in the
      * csv file to decalare direction */
-    if (internal_pin_parser.port().get_name().find("A2F") !=
-        std::string::npos) {
-      io_pin_table.set_pin_direction(pin_id, IoPinTable::INPUT);
-    } else if (internal_pin_parser.port().get_name().find("F2A") !=
-               std::string::npos) {
-      io_pin_table.set_pin_direction(pin_id, IoPinTable::OUTPUT);
-    } else {
-      VTR_LOG(
-        "Invalid direction defintion! Expect [A2F|F2A] in the pin name\n");
-      exit(1);
+    if (pin_dir_convention == e_pin_table_direction_convention::QUICKLOGIC) {
+      if (internal_pin_parser.port().get_name().find("A2F") !=
+          std::string::npos) {
+        io_pin_table.set_pin_direction(pin_id, IoPinTable::INPUT);
+      } else if (internal_pin_parser.port().get_name().find("F2A") !=
+                 std::string::npos) {
+        io_pin_table.set_pin_direction(pin_id, IoPinTable::OUTPUT);
+      } else {
+        VTR_LOG(
+          "Invalid direction defintion! Expect [A2F|F2A] in the pin name\n");
+        exit(1);
+      }
     }
 
     /* Parse pin direction from a specific column, this has a higher priority than inferring from pin names */
diff --git a/libs/libpcf/src/io/read_csv_io_pin_table.h b/libs/libpcf/src/io/read_csv_io_pin_table.h
index c82b5f9cf..acf3473a5 100644
--- a/libs/libpcf/src/io/read_csv_io_pin_table.h
+++ b/libs/libpcf/src/io/read_csv_io_pin_table.h
@@ -14,7 +14,15 @@
 /* Begin namespace openfpga */
 namespace openfpga {
 
-IoPinTable read_csv_io_pin_table(const char* fname);
+/* Option to read csv */
+enum class e_pin_table_direction_convention {
+  EXPLICIT = 0,
+  QUICKLOGIC,
+  NUM_PIN_DIRECTION_CONVENTION
+};
+constexpr std::array<const char*, NUM_PIN_DIRECTION_CONVENTION> PIN_TABLE_DIRECTION_CONVENTION_STRING = {{"explicit", "quicklogic"}}; //String versions of side orientations
+
+IoPinTable read_csv_io_pin_table(const char* fname, const e_pin_table_direction_convention& pin_dir_convention);
 
 } /* End namespace openfpga*/