X-Git-Url: https://git.stderr.nl/gitweb?a=blobdiff_plain;f=VHDL.hs;h=f5ab7cd25cd23046d6e95887036c6f50d3e51331;hb=0de275199ba2f3a98339eefb7784e061a451c5f7;hp=80b069be1dca016621384dbda3c91507a991d8f7;hpb=f55d4e8e7642bd05d44334b83b78850eb5d21df2;p=matthijs%2Fmaster-project%2Fc%CE%BBash.git diff --git a/VHDL.hs b/VHDL.hs index 80b069b..f5ab7cd 100644 --- a/VHDL.hs +++ b/VHDL.hs @@ -6,6 +6,9 @@ module VHDL where import qualified Data.Foldable as Foldable import qualified Maybe import qualified Control.Monad as Monad +import qualified Control.Arrow as Arrow +import qualified Data.Traversable as Traversable +import qualified Data.Monoid as Monoid import qualified Type import qualified TysWiredIn @@ -30,7 +33,7 @@ getDesignFiles = do let context = [ AST.Library $ mkVHDLId "IEEE", AST.Use $ (AST.NSimple $ mkVHDLId "IEEE.std_logic_1164") AST.:.: AST.All] - return $ map (\(ent, arch) -> AST.DesignFile context [ent, arch]) units + return $ map (AST.DesignFile context) units -- | Create an entity for a given function createEntity :: @@ -45,26 +48,34 @@ createEntity hsfunc fdata = Nothing -> do return () -- Create an entity for all other functions Just flatfunc -> - let sigs = flat_sigs flatfunc args = flat_args flatfunc res = flat_res flatfunc - args' = map (fmap (mkMap sigs)) args - res' = fmap (mkMap sigs) res + (ty_decls, args') = Traversable.traverse (Traversable.traverse (mkMap sigs)) args + (ty_decls', res') = Traversable.traverse (mkMap sigs) res + -- TODO: Unique ty_decls ent_decl' = createEntityAST hsfunc args' res' + pkg_id = mkVHDLId $ (AST.fromVHDLId entity_id) ++ "_types" + pkg_decl = if null ty_decls && null ty_decls' + then Nothing + else Just $ AST.PackageDec pkg_id (map AST.PDITD $ ty_decls ++ ty_decls') AST.EntityDec entity_id _ = ent_decl' - entity' = Entity entity_id args' res' (Just ent_decl') - in + entity' = Entity entity_id args' res' (Just ent_decl') pkg_decl + in do setEntity hsfunc entity' where - mkMap :: Eq id => [(id, SignalInfo)] -> id -> Maybe (AST.VHDLId, AST.TypeMark) + mkMap :: + [(SignalId, SignalInfo)] + -> SignalId + -> ([AST.TypeDec], Maybe (AST.VHDLId, AST.TypeMark)) mkMap sigmap id = if isPortSigUse $ sigUse info then - Just (mkVHDLId nm, vhdl_ty ty) + let (decs, type_mark) = vhdl_ty ty in + (decs, Just (mkVHDLId nm, type_mark)) else - Nothing + (Monoid.mempty, Nothing) where info = Maybe.fromMaybe (error $ "Signal not found in the name map? This should not happen!") @@ -134,7 +145,9 @@ createArchitecture hsfunc fdata = (getEntityId fdata) -- Create signal declarations for all signals that are not in args and -- res - let sig_decs = Maybe.catMaybes $ map (mkSigDec . snd) sigs + let (ty_decls, sig_decs) = Arrow.second Maybe.catMaybes $ Traversable.traverse (mkSigDec . snd) sigs + -- TODO: Unique ty_decls + -- TODO: Store ty_decls somewhere -- Create concurrent statements for all signal definitions statements <- mapM (mkConcSm sigs) defs let procs = map mkStateProcSm (makeStatePairs flatfunc) @@ -169,13 +182,14 @@ mkStateProcSm (num, old, new) = rising_edge_clk = AST.PrimFCall $ AST.FCall rising_edge [Nothing AST.:=>: (AST.ADName $ AST.NSimple clk)] statement = AST.IfSm rising_edge_clk [assign] [] Nothing -mkSigDec :: SignalInfo -> Maybe AST.SigDec +mkSigDec :: SignalInfo -> ([AST.TypeDec], Maybe AST.SigDec) mkSigDec info = let use = sigUse info in if isInternalSigUse use || isStateSigUse use then - Just $ AST.SigDec (getSignalId info) (vhdl_ty ty) Nothing + let (ty_decls, type_mark) = vhdl_ty ty in + (ty_decls, Just $ AST.SigDec (getSignalId info) type_mark Nothing) else - Nothing + ([], Nothing) where ty = sigTy info @@ -203,7 +217,9 @@ mkConcSm sigs (FApp hsfunc args res) = do (funcEntity fdata) let entity_id = ent_id entity label <- uniqueName (AST.fromVHDLId entity_id) - let portmaps = mkAssocElems sigs args res entity + -- Add a clk port if we have state + let clk_port = Maybe.fromJust $ mkAssocElem (Just $ mkVHDLId "clk") "clk" + let portmaps = mkAssocElems sigs args res entity ++ (if hasState hsfunc then [clk_port] else []) return $ AST.CSISm $ AST.CompInsSm (mkVHDLId label) (AST.IUEntity (AST.NSimple entity_id)) (AST.PMapAspect portmaps) mkConcSm sigs (UncondDef src dst) = do @@ -290,7 +306,7 @@ getEntityId fdata = getLibraryUnits :: (HsFunction, FuncData) -- | A function from the session - -> Maybe (AST.LibraryUnit, AST.LibraryUnit) -- | The entity and architecture for the function + -> Maybe [AST.LibraryUnit] -- | The entity, architecture and optional package for the function getLibraryUnits (hsfunc, fdata) = case funcEntity fdata of @@ -302,7 +318,9 @@ getLibraryUnits (hsfunc, fdata) = case funcArch fdata of Nothing -> Nothing Just arch -> - Just (AST.LUEntity decl, AST.LUArch arch) + Just $ + [AST.LUEntity decl, AST.LUArch arch] + ++ (Maybe.maybeToList (fmap AST.LUPackageDec $ ent_pkg_decl ent)) -- | The VHDL Bit type bit_ty :: AST.TypeMark @@ -317,24 +335,36 @@ std_logic_ty :: AST.TypeMark std_logic_ty = AST.unsafeVHDLBasicId "std_logic" -- Translate a Haskell type to a VHDL type -vhdl_ty :: Type.Type -> AST.TypeMark +vhdl_ty :: Type.Type -> ([AST.TypeDec], AST.TypeMark) vhdl_ty ty = Maybe.fromMaybe (error $ "Unsupported Haskell type: " ++ (showSDoc $ ppr ty)) (vhdl_ty_maybe ty) --- Translate a Haskell type to a VHDL type -vhdl_ty_maybe :: Type.Type -> Maybe AST.TypeMark +-- Translate a Haskell type to a VHDL type, optionally generating a type +-- declaration for the type. +vhdl_ty_maybe :: Type.Type -> Maybe ([AST.TypeDec], AST.TypeMark) vhdl_ty_maybe ty = if Type.coreEqType ty TysWiredIn.boolTy then - Just bool_ty + Just ([], bool_ty) else case Type.splitTyConApp_maybe ty of Just (tycon, args) -> let name = TyCon.tyConName tycon in -- TODO: Do something more robust than string matching case Name.getOccString name of - "Bit" -> Just std_logic_ty + "Bit" -> Just ([], std_logic_ty) + "FSVec" -> + let + [len, el_ty] = args + -- TODO: Find actual number + ty_id = mkVHDLId ("vector_" ++ (show len)) + -- TODO: Use el_ty + range = AST.IndexConstraint [AST.ToRange (AST.PrimLit "0") (AST.PrimLit "16")] + ty_def = AST.TDA $ AST.ConsArrayDef range std_logic_ty + ty_dec = AST.TypeDec ty_id ty_def + in + Just ([ty_dec], ty_id) otherwise -> Nothing otherwise -> Nothing