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/*
* nextpnr -- Next Generation Place and Route
*
* Copyright (C) 2018 Miodrag Milanovic <miodrag@symbioticeda.com>
*
* 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.
*
*/
#include "jsonwrite.h"
#include <assert.h>
#include <fstream>
#include <iostream>
#include <iterator>
#include <log.h>
#include <map>
#include <string>
#include "nextpnr.h"
#include "version.h"
NEXTPNR_NAMESPACE_BEGIN
namespace JsonWriter {
std::string get_string(std::string str)
{
std::string newstr = "\"";
for (char c : str) {
if (c == '\\')
newstr += c;
newstr += c;
}
return newstr + "\"";
}
std::string get_name(IdString name, Context *ctx) { return get_string(name.c_str(ctx)); }
void write_parameter_value(std::ostream &f, const Property &value)
{
if (value.size() == 32 && value.is_fully_def()) {
f << stringf("%d", value.as_int64());
} else {
f << get_string(value.to_string());
}
}
void write_parameters(std::ostream &f, Context *ctx, const std::unordered_map<IdString, Property> ¶meters,
bool for_module = false)
{
bool first = true;
for (auto ¶m : parameters) {
f << stringf("%s\n", first ? "" : ",");
f << stringf(" %s%s: ", for_module ? "" : " ", get_name(param.first, ctx).c_str());
write_parameter_value(f, param.second);
first = false;
}
}
struct PortGroup
{
std::string name;
std::vector<int> bits;
PortType dir;
};
std::vector<PortGroup> group_ports(Context *ctx)
{
std::vector<PortGroup> groups;
std::unordered_map<std::string, size_t> base_to_group;
for (auto &pair : ctx->ports) {
std::string name = pair.second.name.str(ctx);
if ((name.back() != ']') || (name.find('[') == std::string::npos)) {
groups.push_back({name, {pair.first.index}, pair.second.type});
} else {
int off1 = int(name.find_last_of('['));
std::string basename = name.substr(0, off1);
int index = std::stoi(name.substr(off1 + 1, name.size() - (off1 + 2)));
if (!base_to_group.count(basename)) {
base_to_group[basename] = groups.size();
groups.push_back({basename, std::vector<int>(index + 1, -1), pair.second.type});
}
auto &grp = groups.at(base_to_group[basename]);
if (int(grp.bits.size()) <= index)
grp.bits.resize(index + 1, -1);
NPNR_ASSERT(grp.bits.at(index) == -1);
grp.bits.at(index) = pair.second.net ? pair.second.net->name.index : pair.first.index;
}
}
return groups;
};
std::string format_port_bits(const PortGroup &port)
{
std::stringstream s;
s << "[ ";
bool first = true;
for (auto bit : port.bits) {
if (!first)
s << ", ";
if (bit == -1)
s << "\"x\"";
else
s << bit;
first = false;
}
s << " ]";
return s.str();
}
void write_module(std::ostream &f, Context *ctx)
{
auto val = ctx->attrs.find(ctx->id("module"));
if (val != ctx->attrs.end())
f << stringf(" %s: {\n", get_string(val->second.as_string()).c_str());
else
f << stringf(" %s: {\n", get_string("top").c_str());
f << stringf(" \"settings\": {");
write_parameters(f, ctx, ctx->settings, true);
f << stringf("\n },\n");
f << stringf(" \"attributes\": {");
write_parameters(f, ctx, ctx->attrs, true);
f << stringf("\n },\n");
f << stringf(" \"ports\": {");
auto ports = group_ports(ctx);
bool first = true;
for (auto &port : ports) {
f << stringf("%s\n", first ? "" : ",");
f << stringf(" %s: {\n", get_string(port.name).c_str());
f << stringf(" \"direction\": \"%s\",\n",
port.dir == PORT_IN ? "input" : port.dir == PORT_INOUT ? "inout" : "output");
f << stringf(" \"bits\": %s\n", format_port_bits(port).c_str());
f << stringf(" }");
first = false;
}
f << stringf("\n },\n");
f << stringf(" \"cells\": {");
first = true;
for (auto &pair : ctx->cells) {
auto &c = pair.second;
f << stringf("%s\n", first ? "" : ",");
f << stringf(" %s: {\n", get_name(c->name, ctx).c_str());
f << stringf(" \"hide_name\": %s,\n", c->name.c_str(ctx)[0] == '$' ? "1" : "0");
f << stringf(" \"type\": %s,\n", get_name(c->type, ctx).c_str());
f << stringf(" \"parameters\": {");
write_parameters(f, ctx, c->params);
f << stringf("\n },\n");
f << stringf(" \"attributes\": {");
write_parameters(f, ctx, c->attrs);
f << stringf("\n },\n");
f << stringf(" \"port_directions\": {");
bool first2 = true;
for (auto &conn : c->ports) {
auto &p = conn.second;
std::string direction = (p.type == PORT_IN) ? "input" : (p.type == PORT_OUT) ? "output" : "inout";
f << stringf("%s\n", first2 ? "" : ",");
f << stringf(" %s: \"%s\"", get_name(conn.first, ctx).c_str(), direction.c_str());
first2 = false;
}
f << stringf("\n },\n");
f << stringf(" \"connections\": {");
first2 = true;
for (auto &conn : c->ports) {
auto &p = conn.second;
f << stringf("%s\n", first2 ? "" : ",");
if (p.net)
f << stringf(" %s: [ %d ]", get_name(conn.first, ctx).c_str(), p.net->name.index);
else
f << stringf(" %s: [ ]", get_name(conn.first, ctx).c_str());
first2 = false;
}
f << stringf("\n }\n");
f << stringf(" }");
first = false;
}
f << stringf("\n },\n");
f << stringf(" \"netnames\": {");
first = true;
for (auto &pair : ctx->nets) {
auto &w = pair.second;
f << stringf("%s\n", first ? "" : ",");
f << stringf(" %s: {\n", get_name(w->name, ctx).c_str());
f << stringf(" \"hide_name\": %s,\n", w->name.c_str(ctx)[0] == '$' ? "1" : "0");
f << stringf(" \"bits\": [ %d ] ,\n", pair.first.index);
f << stringf(" \"attributes\": {");
write_parameters(f, ctx, w->attrs);
f << stringf("\n }\n");
f << stringf(" }");
first = false;
}
f << stringf("\n }\n");
f << stringf(" }");
}
void write_context(std::ostream &f, Context *ctx)
{
f << stringf("{\n");
f << stringf(" \"creator\": %s,\n",
get_string("Next Generation Place and Route (git sha1 " GIT_COMMIT_HASH_STR ")").c_str());
f << stringf(" \"modules\": {\n");
write_module(f, ctx);
f << stringf("\n }");
f << stringf("\n}\n");
}
}; // End Namespace JsonWriter
bool write_json_file(std::ostream &f, std::string &filename, Context *ctx)
{
try {
using namespace JsonWriter;
if (!f)
log_error("failed to open JSON file.\n");
write_context(f, ctx);
log_break();
return true;
} catch (log_execution_error_exception) {
return false;
}
}
NEXTPNR_NAMESPACE_END
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