117 lines
3.6 KiB
C
117 lines
3.6 KiB
C
//
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// Author: Wolfgang Spraul
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//
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// This is free and unencumbered software released into the public domain.
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// For details see the UNLICENSE file at the root of the source tree.
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//
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int fpga_find_iob(struct fpga_model* model, const char* sitename,
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int* y, int* x, int* idx);
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const char* fpga_iob_sitename(struct fpga_model* model, int y, int x,
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int idx);
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//
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// When dealing with devices, there are two indices:
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// 1. The index of the device in the device array for that tile.
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// 2. The index of the device within devices of the same type in the tile.
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//
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// Looks up a device pointer based on the type index.
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struct fpga_device* fpga_dev(struct fpga_model* model,
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int y, int x, enum fpgadev_type type, int type_idx);
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// Counts how many devices of type 'type' are in the device
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// array up to devidx.
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int fpga_dev_typecount(struct fpga_model* model, int y, int x,
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enum fpgadev_type type, int dev_idx);
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enum { A6_LUT, B6_LUT, C6_LUT, D6_LUT };
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// lut_len can be -1 (ZTERM)
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int fpga_set_lut(struct fpga_model* model, struct fpga_device* dev,
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int which_lut, const char* lut_str, int lut_len);
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// returns the number of outgoing connections for the
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// connection point given with 'name', and the connection
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// point's first dest offset in connpt_dests_o.
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int fpga_connpt_lookup(struct fpga_model* model, int y, int x,
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const char* name, int* connpt_dests_o);
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const char* fpga_conn_dest(struct fpga_model* model, int y, int x,
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int connpt_dest_idx, int* dest_y, int* dest_x);
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typedef int swidx_t; // swidx_t is an index into the uint32_t switches array
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// returns a switch index, or -1 (NO_SWITCH) if no switch was found
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swidx_t fpga_switch_first(struct fpga_model* model, int y, int x,
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const char* name, int from_to);
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swidx_t fpga_switch_next(struct fpga_model* model, int y, int x,
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swidx_t last, int from_to);
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swidx_t fpga_switch_backtofirst(struct fpga_model* model, int y, int x,
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swidx_t last, int from_to);
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const char* fpga_switch_str(struct fpga_model* model, int y, int x,
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swidx_t swidx, int from_to);
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int fpga_switch_is_bidir(struct fpga_model* model, int y, int x,
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swidx_t swidx);
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int fpga_switch_is_enabled(struct fpga_model* model, int y, int x,
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swidx_t swidx);
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void fpga_switch_enable(struct fpga_model* model, int y, int x,
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swidx_t swidx);
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void fpga_switch_disable(struct fpga_model* model, int y, int x,
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swidx_t swidx);
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const char* fmt_sw(struct fpga_model* model, int y, int x,
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swidx_t sw, int from_to);
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const char* fmt_swchain(struct fpga_model* model, int y, int x,
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swidx_t* sw, int sw_size);
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#define SW_CHAIN_NEXT 0 // use for name
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#define MAX_SW_CHAIN_SIZE 32 // largest seen so far was 10
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struct sw_chain
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{
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// start and recurring values:
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struct fpga_model* model;
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int y;
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int x;
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// start_switch will be set to SW_CHAIN_NEXT (0) after the first call
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const char* start_switch;
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int from_to;
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// return values:
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swidx_t chain[MAX_SW_CHAIN_SIZE];
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int chain_size;
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// internal:
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int first_round;
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};
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// Returns 0 if another switch is returned in chain, or
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// NO_SWITCH (-1) if there is no other switch.
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// chain_size set to 0 when there are no more switches in the tree
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int fpga_switch_chain_enum(struct sw_chain* chain);
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struct swchain_conns
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{
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// start and recurring values:
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struct fpga_model* model;
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int y;
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int x;
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// start_switch will be set to SW_CHAIN_NEXT (0) after first call
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const char* start_switch;
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// return values:
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struct sw_chain chain;
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int connpt_dest_start;
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int num_dests;
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int dest_i;
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int dest_y;
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int dest_x;
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const char* dest_str;
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};
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// Returns 0 if another connection is returned in conns, or
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// NO_CONN (-1) if there is no other connection.
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int fpga_switch_conns_enum(struct swchain_conns* conns);
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