From e919fb0f4bfadcab56a1c1941387eb30f7ee37d5 Mon Sep 17 00:00:00 2001
From: Wolfgang Spraul <wspraul@q-ag.de>
Date: Wed, 16 Jan 2013 04:14:29 -0500
Subject: [PATCH] added one helper function

---
 libs/control.c | 30 ++++++++++++++++++++++++++++++
 libs/control.h |  3 +++
 2 files changed, 33 insertions(+)

diff --git a/libs/control.c b/libs/control.c
index c9b89ad..01f1146 100644
--- a/libs/control.c
+++ b/libs/control.c
@@ -46,6 +46,36 @@ int fpga_find_iob(struct fpga_model *model, const char *sitename,
 	return 0;
 }
 
+const char *fpga_iob_sitename(struct fpga_model *model,
+	int y, int x, dev_type_idx_t type_idx)
+{
+	int i, j;
+
+	for (i = 0; i < model->die->num_t2_ios; i++) {
+		if (!model->die->t2_io[i].pair)
+			continue;
+		if (model->die->t2_io[i].y == y
+		    && model->die->t2_io[i].x == x
+		    && model->die->t2_io[i].type_idx == type_idx)
+			break;
+	}
+	if (i >= model->die->num_t2_ios) {
+		HERE();
+		return 0;
+	}
+	for (j = 0; j < model->pkg->num_pins; j++) {
+		if (model->pkg->pin[j].bank == model->die->t2_io[i].bank
+		    && model->pkg->pin[j].pair == model->die->t2_io[i].pair
+		    && model->pkg->pin[j].pos_side == model->die->t2_io[i].pos_side)
+			break;
+	}
+	if (j >= model->pkg->num_pins) {
+		HERE();
+		return 0;
+	}
+	return model->pkg->pin[j].name;
+}
+
 static void enum_x(struct fpga_model *model, enum fpgadev_type type,
 	int enum_i, int *y, int x, int *type_idx)
 {
diff --git a/libs/control.h b/libs/control.h
index f0a4786..6e2f6dc 100644
--- a/libs/control.h
+++ b/libs/control.h
@@ -11,6 +11,9 @@ typedef int net_idx_t; // net indices are 1-based
 int fpga_find_iob(struct fpga_model* model, const char* sitename,
 	int* y, int* x, dev_type_idx_t* idx);
 
+const char *fpga_iob_sitename(struct fpga_model *model,
+	int y, int x, dev_type_idx_t type_idx);
+
 //
 // When dealing with devices, there are two indices:
 // 1. The index of the device in the device array for that tile.