//-----------------------------------------------------------------------------
// Load the I/O list from a file. Since we are just loading pin assignments,
// put it into IoSeenPreviously so that it will get used on the next
// extraction.
//-----------------------------------------------------------------------------
BOOL LoadIoListFromFile(FILE *f)
{
char line[80];
char name[MAX_NAME_LEN];
int pin;
while(fgetsNoCR(line, sizeof(line), f))
{
if(strcmp(line, "END\n")==0)
{
return TRUE;
}
// Don't internationalize this! It's the file format, not UI.
if(sscanf(line, " %s at %d", name, &pin)==2)
{
int type;
switch(name[0])
{
case 'X': type = IO_TYPE_DIG_INPUT; break;
case 'Y': type = IO_TYPE_DIG_OUTPUT; break;
case 'A': type = IO_TYPE_READ_ADC; break;
default: oops();
}
AppendIoSeenPreviously(name, type, pin);
}
}
return FALSE;
}
//-----------------------------------------------------------------------------
// Wipe the I/O list and then re-extract it from the PLC program, taking
// care not to forget the pin assignments. Gets passed the selected item
// as an index into the list; modifies the list, so returns the new selected
// item as an index into the new list.
//-----------------------------------------------------------------------------
int GenerateIoList(int prevSel)
{
int i, j;
char selName[MAX_NAME_LEN];
if(prevSel >= 0) {
strcpy(selName, Prog.io.assignment[prevSel].name);
}
if(IoSeenPreviouslyCount > MAX_IO_SEEN_PREVIOUSLY/2) {
// flush it so there's lots of room, and we don't run out and
// forget important things
IoSeenPreviouslyCount = 0;
}
// remember the pin assignments
for(i = 0; i < Prog.io.count; i++) {
AppendIoSeenPreviously(Prog.io.assignment[i].name,
Prog.io.assignment[i].type, Prog.io.assignment[i].pin);
}
// wipe the list
Prog.io.count = 0;
// extract the new list so that it must be up to date
for(i = 0; i < Prog.numRungs; i++) {
ExtractNamesFromCircuit(ELEM_SERIES_SUBCKT, Prog.rungs[i]);
}
for(i = 0; i < Prog.io.count; i++) {
if(Prog.io.assignment[i].type == IO_TYPE_DIG_INPUT ||
Prog.io.assignment[i].type == IO_TYPE_DIG_OUTPUT ||
Prog.io.assignment[i].type == IO_TYPE_READ_ADC)
{
for(j = 0; j < IoSeenPreviouslyCount; j++) {
if(strcmp(Prog.io.assignment[i].name,
IoSeenPreviously[j].name)==0)
{
Prog.io.assignment[i].pin = IoSeenPreviously[j].pin;
break;
}
}
}
}
qsort(Prog.io.assignment, Prog.io.count, sizeof(PlcProgramSingleIo),
CompareIo);
if(prevSel >= 0) {
for(i = 0; i < Prog.io.count; i++) {
if(strcmp(Prog.io.assignment[i].name, selName)==0)
break;
}
if(i < Prog.io.count)
return i;
}
// no previous, or selected was deleted
return -1;
}
