75 lines
1.5 KiB
C
75 lines
1.5 KiB
C
/*
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* Copyright (C) 1996-2005 Paul Mackerras.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include "of1275.h"
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#include <stdarg.h>
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int call_prom(const char *service, int nargs, int nret, ...)
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{
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int i;
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struct prom_args {
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const char *service;
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int nargs;
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int nret;
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unsigned int args[12];
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} args;
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va_list list;
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args.service = service;
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args.nargs = nargs;
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args.nret = nret;
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va_start(list, nret);
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for (i = 0; i < nargs; i++)
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args.args[i] = va_arg(list, unsigned int);
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va_end(list);
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for (i = 0; i < nret; i++)
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args.args[nargs+i] = 0;
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if (of_prom_entry(&args) < 0)
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return -1;
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return (nret > 0)? args.args[nargs]: 0;
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}
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int call_prom_ret(const char *service, int nargs, int nret,
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unsigned int *rets, ...)
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{
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int i;
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struct prom_args {
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const char *service;
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int nargs;
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int nret;
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unsigned int args[12];
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} args;
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va_list list;
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args.service = service;
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args.nargs = nargs;
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args.nret = nret;
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va_start(list, rets);
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for (i = 0; i < nargs; i++)
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args.args[i] = va_arg(list, unsigned int);
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va_end(list);
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for (i = 0; i < nret; i++)
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args.args[nargs+i] = 0;
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if (of_prom_entry(&args) < 0)
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return -1;
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if (rets != (void *) 0)
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for (i = 1; i < nret; ++i)
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rets[i-1] = args.args[nargs+i];
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return (nret > 0)? args.args[nargs]: 0;
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}
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