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/*
* nextpnr -- Next Generation Place and Route
*
* Copyright (C) 2021 Symbiflow Authors
*
*
* 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 SITE_ROUTER_H
#define SITE_ROUTER_H
#include <cstdint>
#include "nextpnr_namespaces.h"
#include "nextpnr_types.h"
#include "site_arch.h"
#include "site_routing_storage.h"
NEXTPNR_NAMESPACE_BEGIN
struct Context;
struct TileStatus;
struct SiteRouter
{
SiteRouter(int16_t site) : site(site), dirty(false), site_ok(true) {}
std::unordered_set<CellInfo *> cells_in_site;
std::vector<PipId> valid_pips;
HashTables::HashSet<std::pair<IdString, int32_t>, PairHash> lut_thrus;
const int16_t site;
mutable bool dirty;
mutable bool site_ok;
void bindBel(CellInfo *cell);
void unbindBel(CellInfo *cell);
bool checkSiteRouting(const Context *ctx, const TileStatus &tile_status) const;
void bindSiteRouting(Context *ctx);
void explain(const Context *ctx) const;
};
NEXTPNR_NAMESPACE_END
#endif /* SITE_ROUTER_H */
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