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148 lines
3.6 KiB
148 lines
3.6 KiB
/**********
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Copyright 1990 Regents of the University of California. All rights reserved.
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Author: 1985 Thomas L. Quarles
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**********/
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/* CKTsetup(ckt)
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* this is a driver program to iterate through all the various
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* setup functions provided for the circuit elements in the
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* given circuit
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*/
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#include "ngspice.h"
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#include <stdio.h>
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#include "smpdefs.h"
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#include "cktdefs.h"
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#include "devdefs.h"
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#include "sperror.h"
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#define CKALLOC(var,size,type) \
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if(size && (!(var =(type *)MALLOC((size)*sizeof(type))))){\
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return(E_NOMEM);\
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}
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extern SPICEdev **DEVices;
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int
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CKTsetup(CKTcircuit *ckt)
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{
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int i;
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int error;
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#ifdef XSPICE
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/* gtri - begin - Setup for adding rshunt option resistors */
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CKTnode *node;
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int num_nodes;
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/* gtri - end - Setup for adding rshunt option resistors */
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#endif
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SMPmatrix *matrix;
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ckt->CKTnumStates=0;
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#ifdef WANT_SENSE2
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if(ckt->CKTsenInfo){
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if (error = CKTsenSetup(ckt)) return(error);
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}
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#endif
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if (ckt->CKTisSetup)
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return E_NOCHANGE;
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CKTpartition(ckt);
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error = NIinit(ckt);
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if (error) return(error);
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ckt->CKTisSetup = 1;
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matrix = ckt->CKTmatrix;
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for (i=0;i<DEVmaxnum;i++) {
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if ( ((*DEVices[i]).DEVsetup != NULL) && (ckt->CKThead[i] != NULL) ){
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error = (*((*DEVices[i]).DEVsetup))(matrix,ckt->CKThead[i],ckt,
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&ckt->CKTnumStates);
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if(error) return(error);
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}
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}
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for(i=0;i<=ckt->CKTmaxOrder+1;i++) {
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CKALLOC(ckt->CKTstates[i],ckt->CKTnumStates,double);
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}
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#ifdef WANT_SENSE2
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if(ckt->CKTsenInfo){
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/* to allocate memory to sensitivity structures if
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* it is not done before */
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error = NIsenReinit(ckt);
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if(error) return(error);
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}
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#endif
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if(ckt->CKTniState & NIUNINITIALIZED) {
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error = NIreinit(ckt);
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if(error) return(error);
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}
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#ifdef XSPICE
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/* gtri - begin - Setup for adding rshunt option resistors */
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if(ckt->enh->rshunt_data.enabled) {
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/* Count number of voltage nodes in circuit */
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for(num_nodes = 0, node = ckt->CKTnodes; node; node = node->next)
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if((node->type == NODE_VOLTAGE) && (node->number != 0))
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num_nodes++;
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/* Allocate space for the matrix diagonal data */
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if(num_nodes > 0) {
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ckt->enh->rshunt_data.diag =
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(double **) MALLOC(num_nodes * sizeof(double *));
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}
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/* Set the number of nodes in the rshunt data */
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ckt->enh->rshunt_data.num_nodes = num_nodes;
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/* Get/create matrix diagonal entry following what RESsetup does */
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for(i = 0, node = ckt->CKTnodes; node; node = node->next) {
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if((node->type == NODE_VOLTAGE) && (node->number != 0)) {
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ckt->enh->rshunt_data.diag[i] =
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SMPmakeElt(matrix,node->number,node->number);
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i++;
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}
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}
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}
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/* gtri - end - Setup for adding rshunt option resistors */
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#endif
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return(OK);
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}
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int
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CKTunsetup(CKTcircuit *ckt)
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{
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int i, error, e2;
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error = OK;
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if (!ckt->CKTisSetup)
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return OK;
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for(i=0;i<=ckt->CKTmaxOrder+1;i++) {
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tfree(ckt->CKTstates[i]);
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}
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for (i=0;i<DEVmaxnum;i++) {
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if ( ((*DEVices[i]).DEVunsetup != NULL) && (ckt->CKThead[i] != NULL) ){
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e2 = (*((*DEVices[i]).DEVunsetup))(ckt->CKThead[i],ckt);
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if (!error && e2)
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error = e2;
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}
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}
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ckt->CKTisSetup = 0;
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if(error) return(error);
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NIdestroy(ckt);
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/*
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if (ckt->CKTmatrix)
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SMPdestroy(ckt->CKTmatrix);
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ckt->CKTmatrix = NULL;
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*/
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return OK;
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}
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