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| author | Clifford Wolf <clifford@clifford.at> | 2018-06-09 18:19:20 +0200 |
|---|---|---|
| committer | Clifford Wolf <clifford@clifford.at> | 2018-06-09 18:19:20 +0200 |
| commit | dfbfbf87db6e0fc68d541593b2221db4d5c349f9 (patch) | |
| tree | 665a111ab708ef482c5a2e66da089edafa9ef4ae /ice40/chip.cc | |
| parent | 208d3783225e1de6d95650c37f0b0ee69f793f42 (diff) | |
| download | nextpnr-dfbfbf87db6e0fc68d541593b2221db4d5c349f9.tar.gz nextpnr-dfbfbf87db6e0fc68d541593b2221db4d5c349f9.tar.bz2 nextpnr-dfbfbf87db6e0fc68d541593b2221db4d5c349f9.zip | |
Add very basic router
Signed-off-by: Clifford Wolf <clifford@clifford.at>
Diffstat (limited to 'ice40/chip.cc')
| -rw-r--r-- | ice40/chip.cc | 35 |
1 files changed, 23 insertions, 12 deletions
diff --git a/ice40/chip.cc b/ice40/chip.cc index ed79be0b..9c6d7a1a 100644 --- a/ice40/chip.cc +++ b/ice40/chip.cc @@ -18,6 +18,7 @@ */ #include "chip.h" +#include "log.h" // ----------------------------------------------------------------------- @@ -45,7 +46,7 @@ BelType belTypeFromId(IdString id) // ----------------------------------------------------------------------- -IdString PortPinToId(PortPin type) +IdString portPinToId(PortPin type) { #define X(t) \ if (type == PIN_##t) \ @@ -57,7 +58,7 @@ IdString PortPinToId(PortPin type) return IdString(); } -PortPin PortPinFromId(IdString id) +PortPin portPinFromId(IdString id) { #define X(t) \ if (id == #t) \ @@ -76,28 +77,26 @@ Chip::Chip(ChipArgs args) #ifdef ICE40_HX1K_ONLY if (args.type == ChipArgs::HX1K) { chip_info = chip_info_1k; - return; + } else { + log_error("Unsupported iCE40 chip type.\n"); } #else if (args.type == ChipArgs::LP384) { chip_info = chip_info_384; - return; } else if (args.type == ChipArgs::LP1K || args.type == ChipArgs::HX1K) { chip_info = chip_info_1k; - return; } else if (args.type == ChipArgs::UP5K) { chip_info = chip_info_5k; - return; } else if (args.type == ChipArgs::LP8K || args.type == ChipArgs::HX8K) { chip_info = chip_info_8k; - return; } else { - fprintf(stderr, "Unsupported chip type\n"); - exit(EXIT_FAILURE); + log_error("Unsupported iCE40 chip type.\n"); } #endif - abort(); + bel_to_cell.resize(chip_info.num_bels); + wire_to_net.resize(chip_info.num_wires); + pip_to_net.resize(chip_info.num_pips); } // ----------------------------------------------------------------------- @@ -120,8 +119,20 @@ BelId Chip::getBelByName(IdString name) const WireId Chip::getWireBelPin(BelId bel, PortPin pin) const { - // FIXME - return WireId(); + WireId ret; + + assert(!bel.nil()); + + int num_bel_wires = chip_info.bel_data[bel.index].num_bel_wires; + BelWirePOD *bel_wires = chip_info.bel_data[bel.index].bel_wires; + + for (int i = 0; i < num_bel_wires; i++) + if (bel_wires[i].port == pin) { + ret.index = bel_wires[i].wire_index; + break; + } + + return ret; } // ----------------------------------------------------------------------- |