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/*
* nextpnr -- Next Generation Place and Route
*
* Copyright (C) 2020 gatecat <gatecat@ds0.me>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#ifdef MAIN_EXECUTABLE
#include <fstream>
#include "command.h"
#include "design_utils.h"
#include "jsonwrite.h"
#include "log.h"
#include "timing.h"
USING_NEXTPNR_NAMESPACE
class NexusCommandHandler : public CommandHandler
{
public:
NexusCommandHandler(int argc, char **argv);
virtual ~NexusCommandHandler(){};
std::unique_ptr<Context> createContext(dict<std::string, Property> &values) override;
void setupArchContext(Context *ctx) override{};
void customBitstream(Context *ctx) override;
void customAfterLoad(Context *ctx) override;
protected:
po::options_description getArchOptions() override;
};
NexusCommandHandler::NexusCommandHandler(int argc, char **argv) : CommandHandler(argc, argv) {}
po::options_description NexusCommandHandler::getArchOptions()
{
po::options_description specific("Architecture specific options");
specific.add_options()("device", po::value<std::string>(), "device name");
specific.add_options()("fasm", po::value<std::string>(), "fasm file to write");
specific.add_options()("pdc", po::value<std::string>(), "physical constraints file");
specific.add_options()("no-post-place-opt", "disable post-place repacking (debugging use only)");
specific.add_options()("no-pack-lutff", "disable packing (clustering) LUTs and FFs together");
specific.add_options()("carry-lutff-ratio", po::value<float>(),
"ratio of FFs to be added to carry-chain LUT clusters");
specific.add_options()("estimate-delay-mult", po::value<int>(),
"multiplier for the estimate delay");
return specific;
}
void NexusCommandHandler::customBitstream(Context *ctx)
{
if (vm.count("fasm")) {
std::string filename = vm["fasm"].as<std::string>();
std::ofstream out(filename);
if (!out)
log_error("Failed to open output FASM file %s.\n", filename.c_str());
ctx->write_fasm(out);
}
}
std::unique_ptr<Context> NexusCommandHandler::createContext(dict<std::string, Property> &values)
{
ArchArgs chipArgs;
if (!vm.count("device")) {
log_error("device must be specified on the command line (e.g. --device LIFCL-40-9BG400CES)\n");
}
chipArgs.device = vm["device"].as<std::string>();
auto ctx = std::unique_ptr<Context>(new Context(chipArgs));
if (vm.count("no-post-place-opt"))
ctx->settings[ctx->id("no_post_place_opt")] = Property::State::S1;
if (vm.count("no-pack-lutff"))
ctx->settings[ctx->id("no_pack_lutff")] = Property::State::S1;
if (vm.count("carry-lutff-ratio")) {
float ratio = vm["carry-lutff-ratio"].as<float>();
if (ratio < 0.0f || ratio > 1.0f) {
log_error("Carry LUT+FF packing ration must be between 0.0 and 1.0");
}
ctx->settings[ctx->id("carry_lutff_ratio")] = ratio;
}
if (vm.count("estimate-delay-mult"))
ctx->settings[ctx->id("estimate-delay-mult")] = vm["estimate-delay-mult"].as<int>();
return ctx;
}
void NexusCommandHandler::customAfterLoad(Context *ctx)
{
if (vm.count("pdc")) {
std::string filename = vm["pdc"].as<std::string>();
std::ifstream in(filename);
if (!in)
log_error("Failed to open input PDC file %s.\n", filename.c_str());
ctx->read_pdc(in);
}
}
int main(int argc, char *argv[])
{
NexusCommandHandler handler(argc, argv);
return handler.exec();
}
#endif
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