diff options
Diffstat (limited to 'ecp5/lpf.cc')
| -rw-r--r-- | ecp5/lpf.cc | 63 |
1 files changed, 50 insertions, 13 deletions
diff --git a/ecp5/lpf.cc b/ecp5/lpf.cc index 4bde660e..4ac70fc9 100644 --- a/ecp5/lpf.cc +++ b/ecp5/lpf.cc @@ -17,6 +17,7 @@ * */ +#include <boost/algorithm/string.hpp> #include <sstream> #include "log.h" @@ -25,7 +26,7 @@ NEXTPNR_NAMESPACE_BEGIN bool Arch::applyLPF(std::string filename, std::istream &in) { auto isempty = [](const std::string &str) { - return std::all_of(str.begin(), str.end(), [](char c) { return isblank(c); }); + return std::all_of(str.begin(), str.end(), [](char c) { return isblank(c) || c == '\r' || c == '\n'; }); }; auto strip_quotes = [](const std::string &str) { if (str.at(0) == '"') { @@ -41,7 +42,9 @@ bool Arch::applyLPF(std::string filename, std::istream &in) log_error("failed to open LPF file\n"); std::string line; std::string linebuf; + int lineno = 0; while (std::getline(in, line)) { + ++lineno; size_t cstart = line.find('#'); if (cstart != std::string::npos) line = line.substr(0, cstart); @@ -60,29 +63,63 @@ bool Arch::applyLPF(std::string filename, std::istream &in) words.push_back(tmp); if (words.size() >= 0) { std::string verb = words.at(0); - if (verb == "BLOCK" || verb == "SYSCONFIG" || verb == "FREQUENCY") { - log_warning(" ignoring unsupported LPF command '%s'\n", command.c_str()); + if (verb == "BLOCK" || verb == "SYSCONFIG") { + if (words.size() != 2 || (words.at(1) != "ASYNCPATHS" && words.at(1) != "RESETPATHS")) + log_warning(" ignoring unsupported LPF command '%s' (on line %d)\n", command.c_str(), + lineno); + } else if (verb == "FREQUENCY") { + if (words.size() < 2) + log_error("expected object type after FREQUENCY (on line %d)\n", lineno); + std::string etype = words.at(1); + if (etype == "PORT" || etype == "NET") { + if (words.size() < 4) + log_error("expected frequency value and unit after 'FREQUENCY %s' (on line %d)\n", + etype.c_str(), lineno); + std::string target = strip_quotes(words.at(2)); + float freq = std::stof(words.at(3)); + std::string unit = words.at(4); + boost::algorithm::to_upper(unit); + if (unit == "MHZ") + ; + else if (unit == "KHZ") + freq /= 1.0e3; + else if (unit == "HZ") + freq /= 1.0e6; + else + log_error("unsupported frequency unit '%s' (on line %d)\n", unit.c_str(), lineno); + addClock(id(target), freq); + } else { + log_warning(" ignoring unsupported LPF command '%s %s' (on line %d)\n", command.c_str(), + etype.c_str(), lineno); + } } else if (verb == "LOCATE") { - NPNR_ASSERT(words.at(1) == "COMP"); + if (words.size() < 5) + log_error("expected syntax 'LOCATE COMP <port name> SITE <pin>' (on line %d)\n", lineno); + if (words.at(1) != "COMP") + log_error("expected 'COMP' after 'LOCATE' (on line %d)\n", lineno); std::string cell = strip_quotes(words.at(2)); - NPNR_ASSERT(words.at(3) == "SITE"); + if (words.at(3) != "SITE") + log_error("expected 'SITE' after 'LOCATE COMP %s' (on line %d)\n", cell.c_str(), lineno); auto fnd_cell = cells.find(id(cell)); - if (fnd_cell == cells.end()) { - log_warning("unmatched LPF 'LOCATE COMP' '%s'\n", cell.c_str()); - } else { + if (fnd_cell != cells.end()) { fnd_cell->second->attrs[id("LOC")] = strip_quotes(words.at(4)); } } else if (verb == "IOBUF") { - NPNR_ASSERT(words.at(1) == "PORT"); + if (words.size() < 3) + log_error("expected syntax 'IOBUF PORT <port name> <attr>=<value>...' (on line %d)\n", + lineno); + if (words.at(1) != "PORT") + log_error("expected 'PORT' after 'IOBUF' (on line %d)\n", lineno); std::string cell = strip_quotes(words.at(2)); auto fnd_cell = cells.find(id(cell)); - if (fnd_cell == cells.end()) { - log_warning("unmatched LPF 'IOBUF PORT' '%s'\n", cell.c_str()); - } else { + if (fnd_cell != cells.end()) { for (size_t i = 3; i < words.size(); i++) { std::string setting = words.at(i); size_t eqpos = setting.find('='); - NPNR_ASSERT(eqpos != std::string::npos); + if (eqpos == std::string::npos) + log_error( + "expected syntax 'IOBUF PORT <port name> <attr>=<value>...' (on line %d)\n", + lineno); std::string key = setting.substr(0, eqpos), value = setting.substr(eqpos + 1); fnd_cell->second->attrs[id(key)] = value; } |