80 lines
3.8 KiB
C++
80 lines
3.8 KiB
C++
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/********************************************************************
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* Add commands to the OpenFPGA shell interface,
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* in purpose of generate SDC files
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* - write_pnr_sdc : generate SDC to constrain the back-end flow for FPGA fabric
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* - write_analysis_sdc: TODO: generate SDC based on users' implementations
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*******************************************************************/
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#include "openfpga_sdc.h"
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#include "openfpga_sdc_command.h"
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/* begin namespace openfpga */
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namespace openfpga {
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/********************************************************************
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* - Add a command to Shell environment: generate PnR SDC
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* - Add associated options
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* - Add command dependency
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*******************************************************************/
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static
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void add_openfpga_write_pnr_sdc_command(openfpga::Shell<OpenfpgaContext>& shell,
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const ShellCommandClassId& cmd_class_id,
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const ShellCommandId& shell_cmd_build_fabric_id) {
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Command shell_cmd("write_pnr_sdc");
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/* Add an option '--file' in short '-f'*/
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CommandOptionId output_opt = shell_cmd.add_option("file", true, "Specify the output directory for SDC files");
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shell_cmd.set_option_short_name(output_opt, "f");
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shell_cmd.set_option_require_value(output_opt, openfpga::OPT_STRING);
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/* Add an option '--constrain_global_port' */
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shell_cmd.add_option("constrain_global_port", false, "Constrain all the global ports of FPGA fabric");
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/* Add an option '--constrain_grid' */
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shell_cmd.add_option("constrain_grid", false, "Constrain all the grids of FPGA fabric");
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/* Add an option '--constrain_sb' */
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shell_cmd.add_option("constrain_sb", false, "Constrain all the switch blocks of FPGA fabric");
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/* Add an option '--constrain_cb' */
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shell_cmd.add_option("constrain_cb", false, "Constrain all the connection blocks of FPGA fabric");
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/* Add an option '--constrain_configurable_memory_outputs' */
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shell_cmd.add_option("constrain_configurable_memory_outputs", false, "Constrain all the outputs of configurable memories of FPGA fabric");
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/* Add an option '--constrain_routing_multiplexer_outputs' */
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shell_cmd.add_option("constrain_routing_multiplexer_outputs", false, "Constrain all the outputs of routing multiplexer of FPGA fabric");
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/* Add an option '--constrain_switch_block_outputs' */
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shell_cmd.add_option("constrain_switch_block_outputs", false, "Constrain all the outputs of switch blocks of FPGA fabric");
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/* Add an option '--verbose' */
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shell_cmd.add_option("verbose", false, "Enable verbose output");
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/* Add command 'write_fabric_verilog' to the Shell */
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ShellCommandId shell_cmd_id = shell.add_command(shell_cmd, "generate SDC files to constrain the backend flow for FPGA fabric");
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shell.set_command_class(shell_cmd_id, cmd_class_id);
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shell.set_command_execute_function(shell_cmd_id, write_pnr_sdc);
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/* The 'build_fabric' command should NOT be executed before 'link_openfpga_arch' */
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std::vector<ShellCommandId> cmd_dependency;
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cmd_dependency.push_back(shell_cmd_build_fabric_id);
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shell.set_command_dependency(shell_cmd_id, cmd_dependency);
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}
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void add_openfpga_sdc_commands(openfpga::Shell<OpenfpgaContext>& shell) {
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/* Get the unique id of 'build_fabric' command which is to be used in creating the dependency graph */
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const ShellCommandId& shell_cmd_build_fabric_id = shell.command(std::string("build_fabric"));
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/* Add a new class of commands */
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ShellCommandClassId openfpga_sdc_cmd_class = shell.add_command_class("FPGA-SDC");
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/********************************
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* Command 'write_fabric_verilog'
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*/
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add_openfpga_write_pnr_sdc_command(shell,
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openfpga_sdc_cmd_class,
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shell_cmd_build_fabric_id);
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}
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} /* end namespace openfpga */
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