diff options
Diffstat (limited to 'fpga_interchange/site_router.h')
| -rw-r--r-- | fpga_interchange/site_router.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/fpga_interchange/site_router.h b/fpga_interchange/site_router.h new file mode 100644 index 00000000..561dae9d --- /dev/null +++ b/fpga_interchange/site_router.h @@ -0,0 +1,45 @@ +/* + * 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 NEXTPNR_H +#error Include "site_router.h" via "nextpnr.h" only. +#endif + +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; + 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; +}; + +NEXTPNR_NAMESPACE_END |