ddf7aaf7e5
program that dumps the entire ofw device tree automatically. I needed this functionality to collect ofw dumps from users, and it doesn't hurt to just commit it, as it's all protected inside a #ifdef OFWDUMP.
712 lines
12 KiB
C
712 lines
12 KiB
C
/* $NetBSD: Locore.c,v 1.21 2008/02/12 04:27:46 garbled Exp $ */
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/*
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* Copyright (C) 1995, 1996 Wolfgang Solfrank.
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* Copyright (C) 1995, 1996 TooLs GmbH.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by TooLs GmbH.
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* 4. The name of TooLs GmbH may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "openfirm.h"
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#include <sys/param.h>
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#include <lib/libsa/stand.h>
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#include <machine/cpu.h>
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static int (*openfirmware_entry)(void *);
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static int openfirmware(void *);
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void startup(void *, int, int (*)(void *), char *, int)
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__attribute__((__used__));
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static void setup(void);
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/* this pad gets the rodata laignment right, don't EVER fiddle it */
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char *pad __attribute__((__aligned__ (8))) = "pad";
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int stack[8192/4 + 4] __attribute__((__aligned__ (4), __used__));
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char *heapspace __attribute__((__aligned__ (4)));
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char altheap[0x20000] __attribute__((__aligned__ (4)));
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static int
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openfirmware(void *arg)
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{
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int r;
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__asm volatile ("sync; isync");
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r = openfirmware_entry(arg);
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__asm volatile ("sync; isync");
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return r;
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}
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void
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startup(void *vpd, int res, int (*openfirm)(void *), char *arg, int argl)
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{
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openfirmware_entry = openfirm;
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setup();
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main();
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OF_exit();
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}
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__dead void
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OF_exit(void)
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{
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static struct {
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char *name;
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int nargs;
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int nreturns;
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} args = {
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"exit",
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0,
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0
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};
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openfirmware(&args);
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for (;;); /* just in case */
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}
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__dead void
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OF_boot(char *bootspec)
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{
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static struct {
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char *name;
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int nargs;
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int nreturns;
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char *bootspec;
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} args = {
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"boot",
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1,
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0,
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};
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args.bootspec = bootspec;
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openfirmware(&args);
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for (;;); /* just in case */
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}
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int
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OF_finddevice(char *name)
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{
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static struct {
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char *name;
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int nargs;
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int nreturns;
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char *device;
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int phandle;
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} args = {
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"finddevice",
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1,
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1,
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};
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args.device = name;
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if (openfirmware(&args) == -1)
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return -1;
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return args.phandle;
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}
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int
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OF_instance_to_package(int ihandle)
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{
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static struct {
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char *name;
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int nargs;
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int nreturns;
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int ihandle;
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int phandle;
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} args = {
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"instance-to-package",
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1,
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1,
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};
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args.ihandle = ihandle;
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if (openfirmware(&args) == -1)
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return -1;
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return args.phandle;
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}
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int
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OF_getprop(int handle, char *prop, void *buf, int buflen)
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{
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static struct {
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char *name;
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int nargs;
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int nreturns;
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int phandle;
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char *prop;
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void *buf;
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int buflen;
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int size;
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} args = {
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"getprop",
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4,
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1,
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};
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args.phandle = handle;
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args.prop = prop;
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args.buf = buf;
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args.buflen = buflen;
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if (openfirmware(&args) == -1)
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return -1;
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return args.size;
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}
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#ifdef __notyet__ /* Has a bug on FirePower */
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int
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OF_setprop(int handle, char *prop, void *buf, int len)
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{
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static struct {
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char *name;
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int nargs;
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int nreturns;
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int phandle;
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char *prop;
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void *buf;
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int len;
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int size;
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} args = {
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"setprop",
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4,
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1,
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};
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args.phandle = handle;
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args.prop = prop;
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args.buf = buf;
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args.len = len;
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if (openfirmware(&args) == -1)
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return -1;
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return args.size;
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}
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#endif
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int
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OF_open(char *dname)
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{
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static struct {
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char *name;
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int nargs;
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int nreturns;
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char *dname;
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int handle;
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} args = {
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"open",
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1,
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1,
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};
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#ifdef OFW_DEBUG
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printf("OF_open(%s) -> ", dname);
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#endif
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args.dname = dname;
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if (openfirmware(&args) == -1 ||
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args.handle == 0) {
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#ifdef OFW_DEBUG
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printf("lose\n");
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#endif
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return -1;
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}
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#ifdef OFW_DEBUG
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printf("%d\n", args.handle);
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#endif
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return args.handle;
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}
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void
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OF_close(int handle)
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{
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static struct {
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char *name;
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int nargs;
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int nreturns;
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int handle;
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} args = {
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"close",
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1,
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0,
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};
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#ifdef OFW_DEBUG
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printf("OF_close(%d)\n", handle);
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#endif
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args.handle = handle;
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openfirmware(&args);
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}
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int
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OF_write(int handle, void *addr, int len)
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{
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static struct {
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char *name;
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int nargs;
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int nreturns;
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int ihandle;
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void *addr;
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int len;
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int actual;
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} args = {
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"write",
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3,
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1,
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};
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#ifdef OFW_DEBUG
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if (len != 1)
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printf("OF_write(%d, %p, %x) -> ", handle, addr, len);
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#endif
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args.ihandle = handle;
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args.addr = addr;
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args.len = len;
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if (openfirmware(&args) == -1) {
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#ifdef OFW_DEBUG
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printf("lose\n");
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#endif
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return -1;
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}
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#ifdef OFW_DEBUG
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if (len != 1)
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printf("%x\n", args.actual);
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#endif
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return args.actual;
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}
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int
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OF_read(int handle, void *addr, int len)
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{
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static struct {
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char *name;
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int nargs;
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int nreturns;
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int ihandle;
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void *addr;
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int len;
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int actual;
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} args = {
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"read",
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3,
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1,
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};
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#ifdef OFW_DEBUG
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if (len != 1)
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printf("OF_read(%d, %p, %x) -> ", handle, addr, len);
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#endif
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args.ihandle = handle;
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args.addr = addr;
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args.len = len;
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if (openfirmware(&args) == -1) {
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#ifdef OFW_DEBUG
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printf("lose\n");
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#endif
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return -1;
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}
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#ifdef OFW_DEBUG
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if (len != 1)
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printf("%x\n", args.actual);
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#endif
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return args.actual;
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}
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int
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OF_seek(int handle, u_quad_t pos)
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{
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static struct {
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char *name;
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int nargs;
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int nreturns;
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int handle;
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int poshi;
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int poslo;
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int status;
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} args = {
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"seek",
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3,
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1,
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};
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#ifdef OFW_DEBUG
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printf("OF_seek(%d, %x, %x) -> ", handle, (int)(pos >> 32), (int)pos);
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#endif
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args.handle = handle;
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args.poshi = (int)(pos >> 32);
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args.poslo = (int)pos;
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if (openfirmware(&args) == -1) {
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#ifdef OFW_DEBUG
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printf("lose\n");
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#endif
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return -1;
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}
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#ifdef OFW_DEBUG
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printf("%d\n", args.status);
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#endif
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return args.status;
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}
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void *
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OF_alloc_mem(u_int size)
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{
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static struct {
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char *name;
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int nargs;
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int nreturns;
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u_int size;
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void *baseaddr;
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} args = {
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"alloc-mem",
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1,
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1,
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};
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#ifdef OFW_DEBUG
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printf("alloc-mem %x -> ", size);
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#endif
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if (openfirmware(&args) == -1) {
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#ifdef OFW_DEBUG
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printf("lose\n");
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#endif
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return (void *)-1;
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}
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#ifdef OFW_DEBUG
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printf("%p\n", args.baseaddr);
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#endif
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return args.baseaddr;
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}
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void *
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OF_claim(void *virt, u_int size, u_int align)
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{
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static struct {
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char *name;
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int nargs;
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int nreturns;
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void *virt;
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u_int size;
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u_int align;
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void *baseaddr;
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} args = {
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"claim",
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3,
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1,
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};
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#ifdef OFW_DEBUG
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printf("OF_claim(%p, %x, %x) -> ", virt, size, align);
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#endif
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args.virt = virt;
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args.size = size;
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args.align = align;
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if (openfirmware(&args) == -1) {
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#ifdef OFW_DEBUG
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printf("lose\n");
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#endif
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return (void *)-1;
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}
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#ifdef OFW_DEBUG
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printf("%p\n", args.baseaddr);
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#endif
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return args.baseaddr;
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}
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void
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OF_release(void *virt, u_int size)
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{
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static struct {
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char *name;
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int nargs;
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int nreturns;
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void *virt;
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u_int size;
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} args = {
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"release",
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2,
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0,
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};
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#ifdef OFW_DEBUG
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printf("OF_release(%p, %x)\n", virt, size);
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#endif
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args.virt = virt;
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args.size = size;
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openfirmware(&args);
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}
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int
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OF_milliseconds(void)
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{
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static struct {
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char *name;
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int nargs;
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int nreturns;
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int ms;
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} args = {
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"milliseconds",
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0,
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1,
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};
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openfirmware(&args);
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return args.ms;
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}
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#ifdef __notyet__
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void
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OF_chain(void *virt, u_int size, void (*entry)(), void *arg, u_int len)
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{
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static struct {
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char *name;
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int nargs;
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int nreturns;
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void *virt;
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u_int size;
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void (*entry)();
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void *arg;
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u_int len;
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} args = {
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"chain",
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5,
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0,
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};
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args.virt = virt;
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args.size = size;
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args.entry = entry;
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args.arg = arg;
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args.len = len;
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openfirmware(&args);
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}
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#else
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void
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OF_chain(void *virt, u_int size, boot_entry_t entry, void *arg, u_int len)
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{
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/*
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* This is a REALLY dirty hack till the firmware gets this going
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*/
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#if 0
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OF_release(virt, size);
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#endif
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entry(0, 0, openfirmware_entry, arg, len);
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}
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#endif
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static int stdin;
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static int stdout;
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static int memory;
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static void
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setup(void)
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{
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int chosen;
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if ((chosen = OF_finddevice("/chosen")) == -1)
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OF_exit();
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if (OF_getprop(chosen, "stdin", &stdin, sizeof(stdin)) !=
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sizeof(stdin) ||
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OF_getprop(chosen, "stdout", &stdout, sizeof(stdout)) !=
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sizeof(stdout))
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OF_exit();
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//printf("Allocating 0x20000 bytes of ram for boot\n");
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heapspace = OF_claim(0, 0x20000, NBPG);
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if (heapspace == (char *)-1) {
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printf("WARNING: Failed to alloc ram, using bss\n");
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setheap(&altheap, &altheap[0x20000]);
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} else
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setheap(heapspace, heapspace+0x20000);
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}
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void
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putchar(int c)
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{
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char ch = c;
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if (c == '\n')
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putchar('\r');
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OF_write(stdout, &ch, 1);
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}
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int
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getchar(void)
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{
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unsigned char ch = '\0';
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int l;
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while ((l = OF_read(stdin, &ch, 1)) != 1)
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if (l != -2 && l != 0)
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return -1;
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return ch;
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}
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#ifdef OFWDUMP
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static int
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OF_peer(int phandle)
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{
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static struct {
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const char *name;
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int nargs;
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int nreturns;
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int phandle;
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int sibling;
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} args = {
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"peer",
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1,
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1,
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};
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args.phandle = phandle;
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if (openfirmware(&args) == -1)
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return 0;
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return args.sibling;
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}
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static int
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OF_child(int phandle)
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{
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static struct {
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const char *name;
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int nargs;
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int nreturns;
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int phandle;
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int child;
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} args = {
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"child",
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1,
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1,
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};
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args.phandle = phandle;
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if (openfirmware(&args) == -1)
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return 0;
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return args.child;
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}
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int
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OF_nextprop(int handle, const char *prop, void *nextprop)
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{
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static struct {
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const char *name;
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int nargs;
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int nreturns;
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int phandle;
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const char *prop;
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char *buf;
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int flag;
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} args = {
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"nextprop",
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3,
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1,
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};
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args.phandle = handle;
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args.prop = prop;
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args.buf = nextprop;
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if (openfirmware(&args) == -1)
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return -1;
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return args.flag;
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}
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static int
|
|
OF_package_to_path(int phandle, char *buf, int buflen)
|
|
{
|
|
static struct {
|
|
const char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
int phandle;
|
|
char *buf;
|
|
int buflen;
|
|
int length;
|
|
} args = {
|
|
"package-to-path",
|
|
3,
|
|
1,
|
|
};
|
|
|
|
if (buflen > 4096)
|
|
return -1;
|
|
args.phandle = phandle;
|
|
args.buf = buf;
|
|
args.buflen = buflen;
|
|
if (openfirmware(&args) < 0)
|
|
return -1;
|
|
if (args.length > buflen)
|
|
args.length = buflen;
|
|
return args.length;
|
|
}
|
|
|
|
void
|
|
dump_ofwtree(int node)
|
|
{
|
|
int peer, child, namelen, dlen, i;
|
|
char namebuf[33], newnamebuf[33];
|
|
char path[256], data[256];
|
|
|
|
for (peer = node; peer; peer = OF_peer(peer)) {
|
|
printf("\nnode: 0x%x ", peer);
|
|
if (OF_package_to_path(peer, path, 512) >= 0)
|
|
printf("path=%s", path);
|
|
printf("\n");
|
|
namebuf[0] = '\0';
|
|
namelen = OF_nextprop(peer, namebuf, &newnamebuf);
|
|
while (namelen >= 0) {
|
|
/*printf("namelen == %d namebuf=%s new=%s\n", namelen,
|
|
namebuf, newnamebuf);*/
|
|
//newnamebuf[namelen] = '\0';
|
|
strcpy(namebuf, newnamebuf);
|
|
printf(" %s :", newnamebuf);
|
|
dlen = OF_getprop(peer, newnamebuf, data, 256);
|
|
if (dlen > 0) {
|
|
if (data[0] < 0177)
|
|
printf(" %s\n", data);
|
|
else
|
|
printf("\n");
|
|
printf(" ");
|
|
for (i=0; i < dlen && i < 256; i++) {
|
|
if (data[i] < 0x10)
|
|
printf("0");
|
|
printf("%x", data[i]);
|
|
if ((i+1)%4 == 0)
|
|
printf(" ");
|
|
if ((i+1)%32 == 0)
|
|
printf("\n ");
|
|
}
|
|
}
|
|
printf("\n");
|
|
namelen = OF_nextprop(peer, namebuf, &newnamebuf);
|
|
if (newnamebuf[0] == '\0' ||
|
|
strcmp(namebuf, newnamebuf) == 0)
|
|
break;
|
|
}
|
|
child = OF_child(peer);
|
|
if (child > 0)
|
|
dump_ofwtree(child);
|
|
}
|
|
}
|
|
|
|
#endif /* OFWDUMP */
|