mirror of
git://projects.qi-hardware.com/fped.git
synced 2024-11-19 04:15:21 +02:00
192ec568d8
- changed pad classification in instances from bare/other to copper/special - moved LAYER_* definitions from layer.h to layer.c - after instantiation, we perform sanity checks on pads and remove layers from coppery pads that are handled by a special layer - fped.y: the line number in objects was never set - overlap.c: fixed overlap calculations - gui_tool.c: end_new_pad didn't initialize the pad type git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5635 99fdad57-331a-0410-800a-d7fa5415bdb3
146 lines
3.2 KiB
C
146 lines
3.2 KiB
C
/*
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* layer.c - PCB layers on a pad
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*
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* Written 2009 by Werner Almesberger
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* Copyright 2009 by Werner Almesberger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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/*
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* We don't reject solder paste pads that don't cover anything yet.
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* That way, things can be constructed step by step without getting blue
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* screens all the time.
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*/
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#include <stdlib.h>
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#include "error.h"
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#include "overlap.h"
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#include "inst.h"
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#include "obj.h"
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#include "layer.h"
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/*
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* Shorthands for the layers we use in a general sense.
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*/
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#define LAYER_COPPER (1 << layer_top)
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#define LAYER_PASTE (1 << layer_paste_top)
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#define LAYER_MASK (1 << layer_mask_top)
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/* ----- Conversion between pad types and layer sets ----------------------- */
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layer_type pad_type_to_layers(enum pad_type type)
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{
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layer_type layers = 0;
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switch (type) {
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case pt_normal:
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layers = LAYER_PASTE;
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/* fall through */
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case pt_bare:
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layers |= LAYER_COPPER | LAYER_MASK;
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break;
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case pt_paste:
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layers = LAYER_PASTE;
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break;
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case pt_mask:
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layers = LAYER_MASK;
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break;
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default:
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abort();
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}
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return layers;
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}
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enum pad_type layers_to_pad_type(layer_type layers)
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{
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if (layers & LAYER_COPPER) {
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if (layers & LAYER_PASTE)
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return pt_normal;
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return pt_bare;
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} else {
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if (layers & LAYER_PASTE)
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return pt_paste;
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if (layers & LAYER_MASK)
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return pt_mask;
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abort();
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}
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}
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/* ----- Refine layers after instantiation --------------------------------- */
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static int refine_overlapping(struct inst *copper, struct inst *other)
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{
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if (other->u.pad.layers & LAYER_PASTE) {
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copper->u.pad.layers &= ~LAYER_PASTE;
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if (!inside(other, copper)) {
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fail("solder paste without copper underneath "
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"(\"%s\" line %d, \"%s\" line %d)",
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copper->u.pad.name, copper->obj->lineno,
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other->u.pad.name, other->obj->lineno);
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instantiation_error = other->obj;
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return 0;
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}
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}
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if (other->u.pad.layers & LAYER_MASK)
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copper->u.pad.layers &= ~LAYER_MASK;
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return 1;
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}
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static int refine_copper(const struct pkg *pkg_copper, struct inst *copper)
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{
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const struct pkg *pkg;
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struct inst *other;
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for (pkg = pkgs; pkg; pkg = pkg->next) {
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/*
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* Pads in distinct packages can happily coexist.
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*/
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if (pkg != pkgs && pkg_copper != pkgs && pkg_copper != pkg)
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continue;
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for (other = pkg->insts[ip_pad_copper]; other;
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other = other->next)
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if (copper != other && overlap(copper, other)) {
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fail("overlapping copper pads "
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"(\"%s\" line %d, \"%s\" line %d)",
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copper->u.pad.name, copper->obj->lineno,
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other->u.pad.name, other->obj->lineno);
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instantiation_error = copper->obj;
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return 0;
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}
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for (other = pkg->insts[ip_pad_special]; other;
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other = other->next)
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if (overlap(copper, other))
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if (!refine_overlapping(copper, other))
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return 0;
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}
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return 1;
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}
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int refine_layers(void)
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{
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const struct pkg *pkg;
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struct inst *copper;
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for (pkg = pkgs; pkg; pkg = pkg->next)
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for (copper = pkg->insts[ip_pad_copper]; copper;
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copper = copper->next)
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if (!refine_copper(pkg, copper))
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return 0;
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return 1;
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}
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