664a31e496
is an application space macro and the applications are supposed to be free to use it as they please (but cannot). This is consistant with the other BSD's who made this change quite some time ago. More commits to come.
107 lines
3.1 KiB
C
107 lines
3.1 KiB
C
/* $NetBSD: prom.h,v 1.7 1997/04/06 08:47:37 cgd Exp $ */
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/*
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* Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Keith Bostic, Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*
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* $FreeBSD$
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*/
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#ifndef ASSEMBLER
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struct prom_vec {
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u_int64_t routine;
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void *routine_arg;
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};
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/* The return value from a prom call. */
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typedef union {
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struct {
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u_int64_t
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retval : 32, /* return value. */
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unit : 8,
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mbz : 8,
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error : 13,
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status : 3;
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} u;
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u_int64_t bits;
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} prom_return_t;
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#ifdef STANDALONE
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int getchar __P((void));
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int prom_open __P((char *, int));
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void putchar __P((int));
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#endif
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void prom_halt __P((int)) __attribute__((__noreturn__));
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int prom_getenv __P((int, char *, int));
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#endif
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/* Prom operation values. */
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#define PROM_R_CLOSE 0x11
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#define PROM_R_GETC 0x01
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#define PROM_R_GETENV 0x22
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#define PROM_R_OPEN 0x10
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#define PROM_R_PUTS 0x02
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#define PROM_R_READ 0x13
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#define PROM_R_WRITE 0x14
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/* Environment variable values. */
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#define PROM_E_BOOTED_DEV 0x4
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#define PROM_E_BOOTED_FILE 0x6
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#define PROM_E_BOOTED_OSFLAGS 0x8
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#define PROM_E_TTY_DEV 0xf
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/*
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* There have to be stub routines to do the copying that ensures that the
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* PROM doesn't get called with an address larger than 32 bits. Calls that
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* either don't need to copy anything, or don't need the copy because it's
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* already being done elsewhere, are defined here.
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*/
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#define prom_close(chan) \
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prom_dispatch(PROM_R_CLOSE, chan, 0, 0, 0)
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#define prom_read(chan, len, buf, blkno) \
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prom_dispatch(PROM_R_READ, chan, len, (u_int64_t)buf, blkno)
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#define prom_write(chan, len, buf, blkno) \
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prom_dispatch(PROM_R_WRITE, chan, len, (u_int64_t)buf, blkno)
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#define prom_putstr(chan, str, len) \
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prom_dispatch(PROM_R_PUTS, chan, (u_int64_t)str, len, 0)
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#define prom_getc(chan) \
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prom_dispatch(PROM_R_GETC, chan, 0, 0, 0)
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#define prom_getenv_disp(id, buf, len) \
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prom_dispatch(PROM_R_GETENV, id, (u_int64_t)buf, len, 0)
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#ifndef ASSEMBLER
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#ifdef _KERNEL
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void promcnputc __P((dev_t, int));
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int promcngetc __P((dev_t));
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int promcncheckc __P((dev_t));
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u_int64_t prom_dispatch __P((u_int64_t, u_int64_t, u_int64_t, u_int64_t,
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u_int64_t));
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void init_bootstrap_console __P((void));
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#endif /* _KERNEL */
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#endif /* ASSEMBLER */
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