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/* GXemul: $Id: alpha_prom.h,v 1.2 2006/09/01 16:40:57 debug Exp $ */ |
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/* $NetBSD: prom.h,v 1.12 2000/06/08 03:10:06 thorpej Exp $ */ |
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|
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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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|
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#if 0 |
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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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|
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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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|
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#ifdef _STANDALONE |
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int getchar(void); |
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void putchar(int); |
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#endif |
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|
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void prom_halt(int) __attribute__((__noreturn__)); |
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int prom_getenv(int, char *, int); |
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|
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void hwrpb_primary_init(void); |
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void hwrpb_restart_setup(void); |
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#endif |
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|
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#endif |
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|
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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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#define PROM_R_IOCTL 0x12 |
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|
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/* Prom IOCTL operation subcodes */ |
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#define PROM_I_SKIP2IRG 1 |
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#define PROM_I_SKIP2MARK 2 |
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#define PROM_I_REWIND 3 |
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#define PROM_I_WRITEMARK 4 |
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|
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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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#define PROM_E_SCSIID 0x42 |
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#define PROM_E_SCSIFAST 0x43 |
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|
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#if defined(_STANDALONE) || defined(ENABLEPROM) |
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/* |
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* These can't be called from the kernel without great care. |
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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_open(dev, len) \ |
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prom_dispatch(PROM_R_OPEN, (dev), (len), 0, 0) |
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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_ioctl(chan, op, count) \ |
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prom_dispatch(PROM_R_IOCTL, chan, op, (int64_t)count, 0, 0) |
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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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#endif |
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|
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#ifndef ASSEMBLER |
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#ifdef _KERNEL |
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int prom_enter(void); |
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void prom_leave(int); |
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|
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void promcnputc(dev_t, int); |
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int promcngetc(dev_t); |
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int promcnlookc(dev_t, char *); |
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|
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u_int64_t prom_dispatch(u_int64_t, u_int64_t, u_int64_t, u_int64_t, |
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u_int64_t); |
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#endif /* _KERNEL */ |
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#endif /* ASSEMBLER */ |
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