ecp5: Adding cell definitions

Signed-off-by: David Shah <davey1576@gmail.com>

1 files changed, 59 insertions, 0 deletions

diff --git a/ecp5/cells.h b/ecp5/cells.h
new file mode 100644
index 00000000..e2bda4e9
--- /dev/null
+++ b/ecp5/cells.h
@@ -0,0 +1,59 @@
+/*
+ *  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.
+ *
+ */
+
+#ifndef ECP5_CELLS_H
+#define ECP5_CELLS_H
+
+#include "nextpnr.h"
+
+NEXTPNR_NAMESPACE_BEGIN
+
+
+// Create a standard ECP5 cell and return it
+// Name will be automatically assigned if not specified
+std::unique_ptr<CellInfo> create_ecp5_cell(Context *ctx, IdString type, std::string name = "");
+
+// Return true if a cell is a LUT
+inline bool is_lut(const BaseCtx *ctx, const CellInfo *cell)
+{ return cell->type == ctx->id("LUT4"); }
+
+// Return true if a cell is a flipflop
+inline bool is_ff(const BaseCtx *ctx, const CellInfo *cell)
+{
+    return cell->type == ctx->id("TRELLIS_FF");
+}
+
+inline bool is_carry(const BaseCtx *ctx, const CellInfo *cell)
+{ return cell->type == ctx->id("CCU2C"); }
+
+inline bool is_lc(const BaseCtx *ctx, const CellInfo *cell)
+{ return cell->type == ctx->id("TRELLIS_LC"); }
+
+inline bool is_dpram(const BaseCtx *ctx, const CellInfo *cell)
+{ return cell->type == ctx->id("TRELLIS_DPR16X4"); }
+
+inline bool is_pfumx(const BaseCtx *ctx, const CellInfo *cell)
+{ return cell->type == ctx->id("PFUMX"); }
+
+inline bool is_l6mux(const BaseCtx *ctx, const CellInfo *cell)
+{ return cell->type == ctx->id("L6MUX21"); }
+
+NEXTPNR_NAMESPACE_END
+
+#endif