From a6e86c8f3c053bb0d956602f99302603c07958d3 Mon Sep 17 00:00:00 2001
From: Madeline Busig <madeline.busig@outlook.com>
Date: Mon, 10 Nov 2025 19:50:08 -0800
Subject: [PATCH] Implement interface inferring

---
 tcl/package_ip.tcl | 48 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/tcl/package_ip.tcl b/tcl/package_ip.tcl
index 504df1e..a32860c 100644
--- a/tcl/package_ip.tcl
+++ b/tcl/package_ip.tcl
@@ -1,3 +1,38 @@
+# Parse the interface configuration and create a new interface
+# in the current core
+#
+# @param iface_name   Name of the interface to crate
+# @param iface_conf   Dictionary containing the interface configuration, parsed
+#                     from hog.tcl ReadConf
+#
+proc ParseInterfaceConf { iface_name iface_conf } {
+	puts "Parsing interface $iface_name"
+
+	set iface_protocol [dict get $iface_conf "INTERFACE"]
+	variable infer false
+
+	if { [dict exists $iface_conf "INFER"] } {
+		set infer [dict get $iface_conf "INFER"]
+	}
+
+	if { $infer } {
+		puts "Inferring interface"
+
+		set ports [split [dict get $iface_conf "PORTS"]]
+
+		puts "Using ports: $ports"
+
+		set result [ipx::infer_bus_interface $ports $iface_protocol [ipx::current_core]]
+
+		# Inferred name could differ from the desired name, so set it
+		set inferred_name [lindex $result 2]
+		set created_iface [ipx::get_bus_interfaces $inferred_name -of_objects [ipx::current_core]]
+		set_property NAME $iface_name $created_iface
+	} else {
+		puts "Manually creating interface"
+	}
+}
+
 set gitroot [exec git rev-parse --show-toplevel]
 set hogroot "$gitroot/Hog"
 
@@ -84,6 +119,19 @@ foreach param [ipx::get_user_parameters -of_objects [ipx::current_core]] {
 	ipx::remove_user_parameter $param_name [ipx::current_core]
 }
 
+puts "Parsing interfaces"
+
+foreach {key val} $ip_conf {
+	if { [string first "interface" "$key"] == 0 } {
+		set sepidx [string first "." "$key"]
+		set iface_name [string range "$key" [expr $sepidx + 1] [string length "$key"]]
+
+		ParseInterfaceConf "$iface_name" $val
+	} else {
+		puts "$key is not an interface"
+	}
+}
+
 puts "Packaging IP"
 
 # Increment revision