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-rw-r--r--ecp5/config.cc304
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diff --git a/ecp5/config.cc b/ecp5/config.cc
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+++ b/ecp5/config.cc
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+/*
+ * nextpnr -- Next Generation Place and Route
+ *
+ * Copyright (C) 2018 David Shah <david@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 "config.h"
+#include <boost/range/adaptor/reversed.hpp>
+#include "log.h"
+NEXTPNR_NAMESPACE_BEGIN
+
+#define fmt(x) (static_cast<const std::ostringstream &>(std::ostringstream() << x).str())
+
+inline std::string to_string(const std::vector<bool> &bv)
+{
+ std::ostringstream os;
+ for (auto bit : boost::adaptors::reverse(bv))
+ os << (bit ? '1' : '0');
+ return os.str();
+}
+
+inline std::istream &operator>>(std::istream &in, std::vector<bool> &bv)
+{
+ bv.clear();
+ std::string s;
+ in >> s;
+ for (auto c : boost::adaptors::reverse(s)) {
+ assert((c == '0') || (c == '1'));
+ bv.push_back((c == '1'));
+ }
+ return in;
+}
+
+struct ConfigBit
+{
+ int frame;
+ int bit;
+ bool inv;
+};
+
+static ConfigBit cbit_from_str(const std::string &s)
+{
+ size_t idx = 0;
+ ConfigBit b;
+ if (s[idx] == '!') {
+ b.inv = true;
+ ++idx;
+ } else {
+ b.inv = false;
+ }
+ NPNR_ASSERT(s[idx] == 'F');
+ ++idx;
+ size_t b_pos = s.find('B');
+ NPNR_ASSERT(b_pos != std::string::npos);
+ b.frame = stoi(s.substr(idx, b_pos - idx));
+ b.bit = stoi(s.substr(b_pos + 1));
+ return b;
+}
+
+inline std::string to_string(ConfigBit b)
+{
+ std::ostringstream ss;
+ if (b.inv)
+ ss << "!";
+ ss << "F" << b.frame;
+ ss << "B" << b.bit;
+ return ss.str();
+}
+
+// Skip whitespace, optionally including newlines
+inline void skip_blank(std::istream &in, bool nl = false)
+{
+ int c = in.peek();
+ while (in && (((c == ' ') || (c == '\t')) || (nl && ((c == '\n') || (c == '\r'))))) {
+ in.get();
+ c = in.peek();
+ }
+}
+// Return true if end of line (or file)
+inline bool skip_check_eol(std::istream &in)
+{
+ skip_blank(in, false);
+ if (!in)
+ return false;
+ int c = in.peek();
+ // Comments count as end of line
+ if (c == '#') {
+ in.get();
+ c = in.peek();
+ while (in && c != EOF && c != '\n') {
+ in.get();
+ c = in.peek();
+ }
+ return true;
+ }
+ return (c == EOF || c == '\n');
+}
+
+// Skip past blank lines and comments
+inline void skip(std::istream &in)
+{
+ skip_blank(in, true);
+ while (in && (in.peek() == '#')) {
+ // Skip comment line
+ skip_check_eol(in);
+ skip_blank(in, true);
+ }
+}
+
+// Return true if at the end of a record (or file)
+inline bool skip_check_eor(std::istream &in)
+{
+ skip(in);
+ int c = in.peek();
+ return (c == EOF || c == '.');
+}
+
+// Return true if at the end of file
+inline bool skip_check_eof(std::istream &in)
+{
+ skip(in);
+ int c = in.peek();
+ return (c == EOF);
+}
+
+std::ostream &operator<<(std::ostream &out, const ConfigArc &arc)
+{
+ out << "arc: " << arc.sink << " " << arc.source << std::endl;
+ return out;
+}
+
+std::istream &operator>>(std::istream &in, ConfigArc &arc)
+{
+ in >> arc.sink;
+ in >> arc.source;
+ return in;
+}
+
+std::ostream &operator<<(std::ostream &out, const ConfigWord &cw)
+{
+ out << "word: " << cw.name << " " << to_string(cw.value) << std::endl;
+ return out;
+}
+
+std::istream &operator>>(std::istream &in, ConfigWord &cw)
+{
+ in >> cw.name;
+ in >> cw.value;
+ return in;
+}
+
+std::ostream &operator<<(std::ostream &out, const ConfigEnum &cw)
+{
+ out << "enum: " << cw.name << " " << cw.value << std::endl;
+ return out;
+}
+
+std::istream &operator>>(std::istream &in, ConfigEnum &ce)
+{
+ in >> ce.name;
+ in >> ce.value;
+ return in;
+}
+
+std::ostream &operator<<(std::ostream &out, const ConfigUnknown &cu)
+{
+ out << "unknown: " << to_string(ConfigBit{cu.frame, cu.bit, false}) << std::endl;
+ return out;
+}
+
+std::istream &operator>>(std::istream &in, ConfigUnknown &cu)
+{
+ std::string s;
+ in >> s;
+ ConfigBit c = cbit_from_str(s);
+ cu.frame = c.frame;
+ cu.bit = c.bit;
+ assert(!c.inv);
+ return in;
+}
+
+std::ostream &operator<<(std::ostream &out, const TileConfig &tc)
+{
+ for (const auto &arc : tc.carcs)
+ out << arc;
+ for (const auto &cword : tc.cwords)
+ out << cword;
+ for (const auto &cenum : tc.cenums)
+ out << cenum;
+ for (const auto &cunk : tc.cunknowns)
+ out << cunk;
+ return out;
+}
+
+std::istream &operator>>(std::istream &in, TileConfig &tc)
+{
+ tc.carcs.clear();
+ tc.cwords.clear();
+ tc.cenums.clear();
+ while (!skip_check_eor(in)) {
+ std::string type;
+ in >> type;
+ if (type == "arc:") {
+ ConfigArc a;
+ in >> a;
+ tc.carcs.push_back(a);
+ } else if (type == "word:") {
+ ConfigWord w;
+ in >> w;
+ tc.cwords.push_back(w);
+ } else if (type == "enum:") {
+ ConfigEnum e;
+ in >> e;
+ tc.cenums.push_back(e);
+ } else if (type == "unknown:") {
+ ConfigUnknown u;
+ in >> u;
+ tc.cunknowns.push_back(u);
+ } else {
+ NPNR_ASSERT_FALSE_STR("unexpected token " + type + " while reading config text");
+ }
+ }
+ return in;
+}
+
+void TileConfig::add_arc(const std::string &sink, const std::string &source) { carcs.push_back({sink, source}); }
+
+void TileConfig::add_word(const std::string &name, const std::vector<bool> &value) { cwords.push_back({name, value}); }
+
+void TileConfig::add_enum(const std::string &name, const std::string &value) { cenums.push_back({name, value}); }
+
+void TileConfig::add_unknown(int frame, int bit) { cunknowns.push_back({frame, bit}); }
+
+std::string TileConfig::to_string() const
+{
+ std::stringstream ss;
+ ss << *this;
+ return ss.str();
+}
+
+TileConfig TileConfig::from_string(const std::string &str)
+{
+ std::stringstream ss(str);
+ TileConfig tc;
+ ss >> tc;
+ return tc;
+}
+
+bool TileConfig::empty() const { return carcs.empty() && cwords.empty() && cenums.empty() && cunknowns.empty(); }
+
+std::ostream &operator<<(std::ostream &out, const ChipConfig &cc)
+{
+ out << ".device " << cc.chip_name << std::endl << std::endl;
+ for (const auto &meta : cc.metadata)
+ out << ".comment " << meta << std::endl;
+ out << std::endl;
+ for (const auto &tile : cc.tiles) {
+ if (!tile.second.empty()) {
+ out << ".tile " << tile.first << std::endl;
+ out << tile.second;
+ out << std::endl;
+ }
+ }
+ return out;
+}
+
+std::istream &operator>>(std::istream &in, ChipConfig &cc)
+{
+ while (!skip_check_eof(in)) {
+ std::string verb;
+ in >> verb;
+ if (verb == ".device") {
+ in >> cc.chip_name;
+ } else if (verb == ".comment") {
+ std::string line;
+ getline(in, line);
+ cc.metadata.push_back(line);
+ } else if (verb == ".tile") {
+ std::string tilename;
+ in >> tilename;
+ TileConfig tc;
+ in >> tc;
+ cc.tiles[tilename] = tc;
+ } else {
+ log_error("unrecognised config entry %s\n", verb.c_str());
+ }
+ }
+ return in;
+}
+
+NEXTPNR_NAMESPACE_END
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