From 4f53a69f3cde6f496f2ec249f7ca8aaba1988d1e Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Tue, 30 Sep 2014 10:38:01 +0200
Subject: [PATCH] util_dac_unpack: Hide unused signals

Hide unused signals based on the number of selected channels. This silences
a few warnings from the tools about unconnected pins.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
---
 library/util_dac_unpack/util_dac_unpack_ip.tcl | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/library/util_dac_unpack/util_dac_unpack_ip.tcl b/library/util_dac_unpack/util_dac_unpack_ip.tcl
index b91c85021..0a0bd7393 100644
--- a/library/util_dac_unpack/util_dac_unpack_ip.tcl
+++ b/library/util_dac_unpack/util_dac_unpack_ip.tcl
@@ -18,6 +18,19 @@ ipx::remove_memory_map {m} [ipx::current_core]
 ipx::remove_address_space {s} [ipx::current_core]
 ipx::remove_address_space {fifo} [ipx::current_core]
 
+for {set i 0} {$i < 8} {incr i} {
+	foreach port {"dac_enable" "dac_valid" "dac_data"} {
+		set name [format "%s_%.2d" $port $i]
+		set_property ENABLEMENT_DEPENDENCY \
+		"(spirit:decode(id('MODELPARAM_VALUE.CHANNELS')) > $i)" \
+		[ipx::get_ports $name]
+	}
+	foreach port {"dac_enable" "dac_valid"} {
+		set name [format "%s_%.2d" $port $i]
+		set_property DRIVER_VALUE "0" [ipx::get_ports $name]
+	}
+}
+
 ipx::save_core [ipx::current_core]