Added library support to celltypes class and show pass

2 files changed, 73 insertions, 7 deletions

diff --git a/kernel/celltypes.h b/kernel/celltypes.h
index a13cbf32..1e56a4dd 100644
--- a/kernel/celltypes.h
+++ b/kernel/celltypes.h
@@ -27,6 +27,7 @@
 struct CellTypes
 {
 	std::set<std::string> cell_types;
+	std::vector<const RTLIL::Design*> designs;
 
 	void setup_internals()
 	{
@@ -99,20 +100,39 @@ struct CellTypes
 		cell_types.insert("$_DFF_PP1_");
 	}
 
+	void setup_design(const RTLIL::Design *design)
+	{
+		designs.push_back(design);
+	}
+
 	void clear()
 	{
 		cell_types.clear();
+		designs.clear();
 	}
 
 	bool cell_known(std::string type)
 	{
-		return cell_types.count(type) > 0;
+		if (cell_types.count(type) > 0)
+			return true;
+		for (auto design : designs)
+			if (design->modules.count(type) > 0)
+				return true;
+		return false;
 	}
 
 	bool cell_output(std::string type, std::string port)
 	{
-		if (!cell_known(type))
+		if (cell_types.count(type) == 0) {
+			for (auto design : designs)
+				if (design->modules.count(type) > 0) {
+					if (design->modules.at(type)->wires.count(port))
+						return design->modules.at(type)->wires.at(port)->port_output;
+					return false;
+				}
 			return false;
+		}
+
 		if (port == "\\Y" || port == "\\Q" || port == "\\RD_DATA")
 			return true;
 		if (type == "$memrd" && port == "\\DATA")
@@ -124,9 +144,20 @@ struct CellTypes
 
 	bool cell_input(std::string type, std::string port)
 	{
-		if (!cell_known(type))
+		if (cell_types.count(type) == 0) {
+			for (auto design : designs)
+				if (design->modules.count(type) > 0) {
+					if (design->modules.at(type)->wires.count(port))
+						return design->modules.at(type)->wires.at(port)->port_input;
+					return false;
+				}
 			return false;
-		return !cell_output(type, port);
+		}
+
+		if (cell_types.count(type) > 0)
+			return !cell_output(type, port);
+
+		return false;
 	}
 
 	static RTLIL::Const eval(std::string type, const RTLIL::Const &arg1, const RTLIL::Const &arg2, bool signed1, bool signed2, int result_len)
diff --git a/kernel/show.cc b/kernel/show.cc
index b587a856..7c3f418b 100644
--- a/kernel/show.cc
+++ b/kernel/show.cc
@@ -156,6 +156,7 @@ struct ShowWorker
 		net_conn_map.clear();
 
 		fprintf(f, "digraph \"%s\" {\n", escape(module->name));
+		fprintf(f, "label=\"%s\";\n", escape(module->name));
 		fprintf(f, "rankdir=\"LR\";\n");
 		fprintf(f, "remincross=true;\n");
 
@@ -274,12 +275,16 @@ struct ShowWorker
 		fprintf(f, "};\n");
 	}
 
-	ShowWorker(FILE *f, RTLIL::Design *design) : f(f), design(design)
+	ShowWorker(FILE *f, RTLIL::Design *design, std::vector<RTLIL::Design*> &libs) : f(f), design(design)
 	{
 		ct.setup_internals();
 		ct.setup_internals_mem();
 		ct.setup_stdcells();
 		ct.setup_stdcells_mem();
+		ct.setup_design(design);
+
+		for (auto lib : libs)
+			ct.setup_design(lib);
 
 		design->optimize();
 		page_counter = 0;
@@ -303,7 +308,7 @@ struct ShowPass : public Pass {
 	{
 		//   |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
 		log("\n");
-		log("    show [-viewer <command>] [selection]\n");
+		log("    show [options] [selection]\n");
 		log("\n");
 		log("Create a graphviz DOT file for the selected part of the design and compile it\n");
 		log("to a postscript file.\n");
@@ -311,14 +316,22 @@ struct ShowPass : public Pass {
 		log("    -viewer <command>\n");
 		log("         Also run the specified command with the postscript file as parameter.\n");
 		log("\n");
+		log("    -lib <verilog_or_ilang_file>\n");
+		log("         Use the specified library file for determining whether cell ports are.\n");
+		log("         inputs or outputs. This option can be used multiple times to specify\n");
+		log("         more than one library.\n");
+		log("\n");
 		log("The generated output files are `yosys-show.dot' and `yosys-show.ps'.\n");
 		log("\n");
 	}
 	virtual void execute(std::vector<std::string> args, RTLIL::Design *design)
 	{
 		log_header("Generating Graphviz representation of design.\n");
+		log_push();
 
 		std::string viewer_exe;
+		std::vector<std::string> libfiles;
+		std::vector<RTLIL::Design*> libs;
 
 		size_t argidx;
 		for (argidx = 1; argidx < args.size(); argidx++)
@@ -328,15 +341,32 @@ struct ShowPass : public Pass {
 				viewer_exe = args[++argidx];
 				continue;
 			}
+			if (arg == "-lib" && argidx+1 < args.size()) {
+				libfiles.push_back(args[++argidx]);
+				continue;
+			}
 			break;
 		}
 		extra_args(args, argidx, design);
 
+		for (auto filename : libfiles) {
+			FILE *f = fopen(filename.c_str(), "rt");
+			if (f == NULL)
+				log_error("Can't open lib file `%s'.\n", filename.c_str());
+			RTLIL::Design *lib = new RTLIL::Design;
+			Frontend::frontend_call(lib, f, filename, (filename.size() > 3 && filename.substr(filename.size()-3) == ".il") ? "ilang" : "verilog");
+			libs.push_back(lib);
+			fclose(f);
+		}
+
+		if (libs.size() > 0)
+			log_header("Continuing show pass.\n");
+
 		log("Writing dot description to `yosys-show.dot'.\n");
 		FILE *f = fopen("yosys-show.dot", "w");
 		if (f == NULL)
 			log_cmd_error("Can't open dot file `yosys-show.dot' for writing.\n");
-		ShowWorker worker(f, design);
+		ShowWorker worker(f, design, libs);
 		fclose(f);
 
 		if (worker.page_counter == 0)
@@ -353,6 +383,11 @@ struct ShowPass : public Pass {
 			if (system(cmd.c_str()) != 0)
 				log_cmd_error("Shell command failed!\n");
 		}
+
+		for (auto lib : libs)
+			delete lib;
+
+		log_pop();
 	}
 } ShowPass;