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Allow sheet pins to be strong drivers if they don't conflict with anything 

Also try harder to match bus members in case one was renamed by a higher
priority label.

Fixes https://gitlab.com/kicad/code/kicad/issues/3797
This commit is contained in:
Jon Evans 2020-02-05 14:23:55 +00:00 committed by Seth Hillbrand
parent 8fb72d8290
commit fe375b4419
4 changed files with 134 additions and 52 deletions
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2
CMakeLists.txt
View File

@ -402,6 +402,8 @@ if( CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang" )
endif( CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang" )
if( MSVC )
# Fix our usage of "#ifdef DEBUG"
add_compile_definitions( $<$<CONFIG:Debug>:DEBUG> )
# Disallow implicit linking for Boost
add_definitions( -DBOOST_ALL_NO_LIB )
# Disable MSVC's deprecation warnings

2
common/common.cpp
View File

@ -65,7 +65,7 @@ void KiAssertFilter( const wxString &file, int line,
const wxString &msg)
{
if( !msg.Contains( "Decimal separator mismatch" ) )
wxTheApp->OnAssertFailure( file, line, func, cond, msg );
wxTheApp->OnAssertFailure( file.c_str(), line, func.c_str(), cond.c_str(), msg.c_str() );
}
#endif

159
eeschema/connection_graph.cpp
View File

@ -1020,6 +1020,20 @@ void CONNECTION_GRAPH::buildConnectionGraph()
subgraph->UpdateItemConnections();
}
else
{
// If there is no conflict, promote sheet pins to be strong drivers so that they
// will be considered below for propagation/merging.
if( subgraph->m_driver->Type() == SCH_SHEET_PIN_T )
{
wxLogTrace( "CONN", "%ld (%s) weakly driven by unique sheet pin %s, promoting",
subgraph->m_code, name,
subgraph->m_driver->GetSelectMenuText( EDA_UNITS::MILLIMETRES ) );
subgraph->m_strong_driver = true;
}
}
}
// Assign net codes
@ -1090,18 +1104,10 @@ void CONNECTION_GRAPH::buildConnectionGraph()
if( possible_driver == aSubgraph->m_driver )
continue;
switch( possible_driver->Type() )
{
case SCH_PIN_T:
{
auto sch_pin = static_cast<SCH_PIN*>( possible_driver );
auto c = getDefaultConnection( possible_driver, aSubgraph->m_sheet );
if( sch_pin->IsPowerConnection() )
if( c )
{
auto pin = static_cast<SCH_PIN *>( possible_driver );
auto c = std::make_shared<SCH_CONNECTION>( pin, aSubgraph->m_sheet );
c->ConfigureFromLabel( pin->GetName() );
if( c->Type() != aSubgraph->m_driver_connection->Type() )
continue;
@ -1109,38 +1115,8 @@ void CONNECTION_GRAPH::buildConnectionGraph()
continue;
connections_to_check.push_back( c );
wxLogTrace( "CONN", "%lu (%s): Adding secondary pin %s",
aSubgraph->m_code,
aSubgraph->m_driver_connection->Name( true ),
c->Name( true ) );
}
break;
}
case SCH_GLOBAL_LABEL_T:
case SCH_HIER_LABEL_T:
case SCH_LABEL_T:
{
auto text = static_cast<SCH_TEXT*>( possible_driver );
auto c = std::make_shared<SCH_CONNECTION>( text, aSubgraph->m_sheet );
c->ConfigureFromLabel( text->GetText() );
if( c->Type() != aSubgraph->m_driver_connection->Type() )
continue;
if( c->Name( true ) == aSubgraph->m_driver_connection->Name( true ) )
continue;
connections_to_check.push_back( c );
wxLogTrace( "CONN", "%lu (%s): Adding secondary label %s",
aSubgraph->m_code,
aSubgraph->m_driver_connection->Name( true ),
c->Name( true ) );
break;
}
default:
break;
wxLogTrace( "CONN", "%lu (%s): Adding secondary driver %s", aSubgraph->m_code,
aSubgraph->m_driver_connection->Name( true ), c->Name( true ) );
}
}
};
@ -1477,6 +1453,7 @@ void CONNECTION_GRAPH::propagateToNeighbors( CONNECTION_SUBGRAPH* aSubgraph )
SCH_CONNECTION* conn = aSubgraph->m_driver_connection;
std::vector<CONNECTION_SUBGRAPH*> search_list;
std::unordered_set<CONNECTION_SUBGRAPH*> visited;
std::vector<SCH_CONNECTION*> stale_bus_members;
auto visit = [&] ( CONNECTION_SUBGRAPH* aParent ) {
for( SCH_SHEET_PIN* pin : aParent->m_hier_pins )
@ -1564,6 +1541,30 @@ void CONNECTION_GRAPH::propagateToNeighbors( CONNECTION_SUBGRAPH* aSubgraph )
// figure out what the actual new connection is.
SCH_CONNECTION* member = matchBusMember( parent, kv.first.get() );
if( !member )
{
// Try harder: we might match on a secondary driver
for( CONNECTION_SUBGRAPH* sg : kv.second )
{
if( sg->m_multiple_drivers )
{
SCH_SHEET_PATH sheet = sg->m_sheet;
for( SCH_ITEM* driver : sg->m_drivers )
{
auto c = getDefaultConnection( driver, sheet );
member = matchBusMember( parent, c.get() );
if( member )
break;
}
}
if( member )
break;
}
}
// This is bad, probably an ERC error
if( !member )
{
@ -1579,6 +1580,9 @@ void CONNECTION_GRAPH::propagateToNeighbors( CONNECTION_SUBGRAPH* aSubgraph )
if( neighbor_name == member->Name() )
continue;
// Safety check against infinite recursion
wxASSERT( neighbor_conn->IsNet() );
wxLogTrace( "CONN", "%lu (%s) connected to bus member %s (local %s)",
neighbor->m_code, neighbor_name, member->Name(), member->LocalName() );
@ -1587,6 +1591,7 @@ void CONNECTION_GRAPH::propagateToNeighbors( CONNECTION_SUBGRAPH* aSubgraph )
>= CONNECTION_SUBGRAPH::PRIORITY::POWER_PIN )
{
member->Clone( *neighbor_conn );
stale_bus_members.push_back( member );
}
else
{
@ -1680,16 +1685,79 @@ void CONNECTION_GRAPH::propagateToNeighbors( CONNECTION_SUBGRAPH* aSubgraph )
subgraph->m_driver_connection->Clone( *conn );
subgraph->UpdateItemConnections();
if( old_name != conn->Name() )
recacheSubgraphName( subgraph, old_name );
if( conn->IsBus() )
propagate_bus_neighbors( subgraph );
}
// Somewhere along the way, a bus member may have been upgraded to a global or power label.
// Because this can happen anywhere, we need a second pass to update all instances of that bus
// member to have the correct connection info
if( conn->IsBus() && !stale_bus_members.empty() )
{
for( auto stale_member : stale_bus_members )
{
for( CONNECTION_SUBGRAPH* subgraph : visited )
{
SCH_CONNECTION* member =
matchBusMember( subgraph->m_driver_connection, stale_member );
wxASSERT( member );
wxLogTrace( "CONN", "Updating %lu (%s) member %s to %s", subgraph->m_code,
subgraph->m_driver_connection->Name(), member->LocalName(),
stale_member->Name() );
member->Clone( *stale_member );
propagate_bus_neighbors( subgraph );
}
}
}
aSubgraph->m_dirty = false;
}
std::shared_ptr<SCH_CONNECTION> CONNECTION_GRAPH::getDefaultConnection(
SCH_ITEM* aItem, SCH_SHEET_PATH aSheet )
{
auto c = std::shared_ptr<SCH_CONNECTION>( nullptr );
switch( aItem->Type() )
{
case SCH_PIN_T:
{
auto pin = static_cast<SCH_PIN*>( aItem );
if( pin->IsPowerConnection() )
{
c = std::make_shared<SCH_CONNECTION>( aItem, aSheet );
c->ConfigureFromLabel( pin->GetName() );
}
break;
}
case SCH_GLOBAL_LABEL_T:
case SCH_HIER_LABEL_T:
case SCH_LABEL_T:
{
auto text = static_cast<SCH_TEXT*>( aItem );
c = std::make_shared<SCH_CONNECTION>( aItem, aSheet );
c->ConfigureFromLabel( text->GetText() );
break;
}
default:
break;
}
return c;
}
SCH_CONNECTION* CONNECTION_GRAPH::matchBusMember(
SCH_CONNECTION* aBusConnection, SCH_CONNECTION* aSearch )
{
@ -1723,14 +1791,14 @@ SCH_CONNECTION* CONNECTION_GRAPH::matchBusMember(
{
for( const auto& bus_member : c->Members() )
{
if( bus_member->LocalName() == aSearch->RawName() )
if( bus_member->LocalName() == aSearch->LocalName() )
{
match = bus_member.get();
break;
}
}
}
else if( c->LocalName() == aSearch->RawName() )
else if( c->LocalName() == aSearch->LocalName() )
{
match = c.get();
break;
@ -1751,6 +1819,9 @@ void CONNECTION_GRAPH::recacheSubgraphName(
vec.erase( std::remove( vec.begin(), vec.end(), aSubgraph ), vec.end() );
}
wxLogTrace( "CONN", "recacheSubgraphName: %s => %s", aOldName,
aSubgraph->m_driver_connection->Name() );
m_net_name_to_subgraphs_map[aSubgraph->m_driver_connection->Name()].push_back( aSubgraph );
}

9
eeschema/connection_graph.h
View File

@ -387,6 +387,15 @@ private:
static SCH_CONNECTION* matchBusMember( SCH_CONNECTION* aBusConnection,
SCH_CONNECTION* aSearch );
/**
* Builds a new default connection for the given item based on its properties.
* Handles strong drivers (power pins and labels) only
*
* @param aItem is an item that can generate a connection name
* @return a connection generated from the item, or nullptr if item is not valid
*/
std::shared_ptr<SCH_CONNECTION> getDefaultConnection( SCH_ITEM* aItem, SCH_SHEET_PATH aSheet );
void recacheSubgraphName( CONNECTION_SUBGRAPH* aSubgraph, const wxString& aOldName );
/**