7d73a33303
As of this patchset, the loader builds (under NetBSD/macppc), boots, interacts and talks to BOOTP/NFS servers. (main.c was moved from boot/ofw/libofw to boot/ofw/common but has no revision history) Reviewed by: obrien
748 lines
13 KiB
C
748 lines
13 KiB
C
/* $NetBSD: Locore.c,v 1.7 2000/08/20 07:04:59 tsubai Exp $ */
|
|
|
|
/*
|
|
* Copyright (C) 1995, 1996 Wolfgang Solfrank.
|
|
* Copyright (C) 1995, 1996 TooLs GmbH.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by TooLs GmbH.
|
|
* 4. The name of TooLs GmbH may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
|
|
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
|
|
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
|
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
/*
|
|
* Copyright (C) 2000 Benno Rice.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY Benno Rice ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
|
|
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
|
|
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
|
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <machine/stdarg.h>
|
|
|
|
#include <stand.h>
|
|
|
|
#include "openfirm.h"
|
|
|
|
static int (*openfirmware)(void *);
|
|
static ihandle_t stdin;
|
|
static ihandle_t stdout;
|
|
|
|
/* Initialiaser */
|
|
|
|
void
|
|
OF_init(int (*openfirm)(void *))
|
|
{
|
|
openfirmware = openfirm;
|
|
}
|
|
|
|
/*
|
|
* Generic functions
|
|
*/
|
|
|
|
/* Test to see if a service exists. */
|
|
int
|
|
OF_test(char *name)
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
char *service;
|
|
int missing;
|
|
} args = {
|
|
"test",
|
|
1,
|
|
1,
|
|
};
|
|
|
|
args.service = name;
|
|
if (openfirmware(&args) == -1)
|
|
return -1;
|
|
return args.missing;
|
|
}
|
|
|
|
/* Return firmware millisecond count. */
|
|
int
|
|
OF_milliseconds()
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
int ms;
|
|
} args = {
|
|
"milliseconds",
|
|
0,
|
|
1,
|
|
};
|
|
|
|
openfirmware(&args);
|
|
return args.ms;
|
|
}
|
|
|
|
/*
|
|
* Device tree functions
|
|
*/
|
|
|
|
/* Return the next sibling of this node or 0. */
|
|
phandle_t
|
|
OF_peer(phandle_t node)
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
phandle_t node;
|
|
phandle_t next;
|
|
} args = {
|
|
"peer",
|
|
1,
|
|
1,
|
|
};
|
|
|
|
args.node = node;
|
|
if (openfirmware(&args) == -1)
|
|
return -1;
|
|
return args.next;
|
|
}
|
|
|
|
/* Return the first child of this node or 0. */
|
|
phandle_t
|
|
OF_child(phandle_t node)
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
phandle_t node;
|
|
phandle_t child;
|
|
} args = {
|
|
"child",
|
|
1,
|
|
1,
|
|
};
|
|
|
|
args.node = node;
|
|
if (openfirmware(&args) == -1)
|
|
return -1;
|
|
return args.child;
|
|
}
|
|
|
|
/* Return the parent of this node or 0. */
|
|
phandle_t
|
|
OF_parent(phandle_t node)
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
phandle_t node;
|
|
phandle_t parent;
|
|
} args = {
|
|
"parent",
|
|
1,
|
|
1,
|
|
};
|
|
|
|
args.node = node;
|
|
if (openfirmware(&args) == -1)
|
|
return -1;
|
|
return args.parent;
|
|
}
|
|
|
|
/* Return the package handle that corresponds to an instance handle. */
|
|
phandle_t
|
|
OF_instance_to_package(ihandle_t instance)
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
ihandle_t instance;
|
|
phandle_t package;
|
|
} args = {
|
|
"instance-to-package",
|
|
1,
|
|
1,
|
|
};
|
|
|
|
args.instance = instance;
|
|
if (openfirmware(&args) == -1)
|
|
return -1;
|
|
return args.package;
|
|
}
|
|
|
|
/* Get the length of a property of a package. */
|
|
int
|
|
OF_getproplen(phandle_t package, char *propname)
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
phandle_t package;
|
|
char *propname;
|
|
int proplen;
|
|
} args = {
|
|
"getproplen",
|
|
2,
|
|
1,
|
|
};
|
|
|
|
args.package = package;
|
|
args.propname = propname;
|
|
if (openfirmware(&args) == -1)
|
|
return -1;
|
|
return args.proplen;
|
|
}
|
|
|
|
/* Get the value of a property of a package. */
|
|
int
|
|
OF_getprop(phandle_t package, char *propname, void *buf, int buflen)
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
phandle_t package;
|
|
char *propname;
|
|
void *buf;
|
|
int buflen;
|
|
int size;
|
|
} args = {
|
|
"getprop",
|
|
4,
|
|
1,
|
|
};
|
|
|
|
args.package = package;
|
|
args.propname = propname;
|
|
args.buf = buf;
|
|
args.buflen = buflen;
|
|
if (openfirmware(&args) == -1)
|
|
return -1;
|
|
return args.size;
|
|
}
|
|
|
|
/* Get the next property of a package. */
|
|
int
|
|
OF_nextprop(phandle_t package, char *previous, char *buf)
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
phandle_t package;
|
|
char *previous;
|
|
char *buf;
|
|
int flag;
|
|
} args = {
|
|
"nextprop",
|
|
3,
|
|
1,
|
|
};
|
|
|
|
args.package = package;
|
|
args.previous = previous;
|
|
args.buf = buf;
|
|
if (openfirmware(&args) == -1)
|
|
return -1;
|
|
return args.flag;
|
|
}
|
|
|
|
/* Set the value of a property of a package. */
|
|
/* XXX Has a bug on FirePower */
|
|
int
|
|
OF_setprop(phandle_t package, char *propname, void *buf, int len)
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
phandle_t package;
|
|
char *propname;
|
|
void *buf;
|
|
int len;
|
|
int size;
|
|
} args = {
|
|
"setprop",
|
|
4,
|
|
1,
|
|
};
|
|
|
|
args.package = package;
|
|
args.propname = propname;
|
|
args.buf = buf;
|
|
args.len = len;
|
|
if (openfirmware(&args) == -1)
|
|
return -1;
|
|
return args.size;
|
|
}
|
|
|
|
/* Convert a device specifier to a fully qualified pathname. */
|
|
int
|
|
OF_canon(const char *device, char *buf, int len)
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
char *device;
|
|
char *buf;
|
|
int len;
|
|
int size;
|
|
} args = {
|
|
"canon",
|
|
3,
|
|
1,
|
|
};
|
|
|
|
args.device = (char *)(uintptr_t *)device;
|
|
args.buf = buf;
|
|
args.len = len;
|
|
if (openfirmware(&args) == -1)
|
|
return -1;
|
|
return args.size;
|
|
}
|
|
|
|
/* Return a package handle for the specified device. */
|
|
phandle_t
|
|
OF_finddevice(const char *device)
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
char *device;
|
|
phandle_t package;
|
|
} args = {
|
|
"finddevice",
|
|
1,
|
|
1,
|
|
};
|
|
|
|
args.device = (char *)(uintptr_t *)device;
|
|
if (openfirmware(&args) == -1)
|
|
return -1;
|
|
return args.package;
|
|
}
|
|
|
|
/* Return the fully qualified pathname corresponding to an instance. */
|
|
int
|
|
OF_instance_to_path(ihandle_t instance, char *buf, int len)
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
ihandle_t instance;
|
|
char *buf;
|
|
int len;
|
|
int size;
|
|
} args = {
|
|
"instance-to-path",
|
|
3,
|
|
1,
|
|
};
|
|
|
|
args.instance = instance;
|
|
args.buf = buf;
|
|
args.len = len;
|
|
if (openfirmware(&args) == -1)
|
|
return -1;
|
|
return(args.size);
|
|
}
|
|
|
|
/* Return the fully qualified pathname corresponding to a package. */
|
|
int
|
|
OF_package_to_path(phandle_t package, char *buf, int len)
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
phandle_t package;
|
|
char *buf;
|
|
int len;
|
|
int size;
|
|
} args = {
|
|
"package-to-path",
|
|
3,
|
|
1,
|
|
};
|
|
|
|
args.package = package;
|
|
args.buf = buf;
|
|
args.len = len;
|
|
if (openfirmware(&args) == -1)
|
|
return -1;
|
|
return(args.size);
|
|
}
|
|
|
|
/* Call the method in the scope of a given instance. */
|
|
int
|
|
OF_call_method(char *method, ihandle_t instance, int nargs, int nreturns, ...)
|
|
{
|
|
va_list ap;
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
char *method;
|
|
ihandle_t instance;
|
|
int args_n_results[12];
|
|
} args = {
|
|
"call-method",
|
|
2,
|
|
1,
|
|
};
|
|
int *ip, n;
|
|
|
|
if (nargs > 6)
|
|
return -1;
|
|
args.nargs = nargs + 2;
|
|
args.nreturns = nreturns + 1;
|
|
args.method = method;
|
|
args.instance = instance;
|
|
va_start(ap, nreturns);
|
|
for (ip = args.args_n_results + (n = nargs); --n >= 0;)
|
|
*--ip = va_arg(ap, int);
|
|
|
|
if (openfirmware(&args) == -1)
|
|
return -1;
|
|
if (args.args_n_results[nargs])
|
|
return args.args_n_results[nargs];
|
|
for (ip = args.args_n_results + nargs + (n = args.nreturns); --n > 0;)
|
|
*va_arg(ap, int *) = *--ip;
|
|
va_end(ap);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Device I/O functions.
|
|
*/
|
|
|
|
/* Open an instance for a device. */
|
|
ihandle_t
|
|
OF_open(char *device)
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
char *device;
|
|
ihandle_t instance;
|
|
} args = {
|
|
"open",
|
|
1,
|
|
1,
|
|
};
|
|
|
|
args.device = device;
|
|
if (openfirmware(&args) == -1 || args.instance == 0) {
|
|
return -1;
|
|
}
|
|
return args.instance;
|
|
}
|
|
|
|
/* Close an instance. */
|
|
void
|
|
OF_close(ihandle_t instance)
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
ihandle_t instance;
|
|
} args = {
|
|
"close",
|
|
1,
|
|
0,
|
|
};
|
|
|
|
args.instance = instance;
|
|
openfirmware(&args);
|
|
}
|
|
|
|
/* Read from an instance. */
|
|
int
|
|
OF_read(ihandle_t instance, void *addr, int len)
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
ihandle_t instance;
|
|
void *addr;
|
|
int len;
|
|
int actual;
|
|
} args = {
|
|
"read",
|
|
3,
|
|
1,
|
|
};
|
|
|
|
args.instance = instance;
|
|
args.addr = addr;
|
|
args.len = len;
|
|
|
|
#if defined(OPENFIRM_DEBUG)
|
|
printf("OF_read: called with instance=%08x, addr=%p, len=%d\n",
|
|
args.instance, args.addr, args.len);
|
|
#endif
|
|
|
|
if (openfirmware(&args) == -1)
|
|
return -1;
|
|
|
|
#if defined(OPENFIRM_DEBUG)
|
|
printf("OF_read: returning instance=%d, addr=%p, len=%d, actual=%d\n",
|
|
args.instance, args.addr, args.len, args.actual);
|
|
#endif
|
|
|
|
return args.actual;
|
|
}
|
|
|
|
/* Write to an instance. */
|
|
int
|
|
OF_write(ihandle_t instance, void *addr, int len)
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
ihandle_t instance;
|
|
void *addr;
|
|
int len;
|
|
int actual;
|
|
} args = {
|
|
"write",
|
|
3,
|
|
1,
|
|
};
|
|
|
|
args.instance = instance;
|
|
args.addr = addr;
|
|
args.len = len;
|
|
if (openfirmware(&args) == -1)
|
|
return -1;
|
|
return args.actual;
|
|
}
|
|
|
|
/* Seek to a position. */
|
|
int
|
|
OF_seek(ihandle_t instance, u_int64_t pos)
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
ihandle_t instance;
|
|
int poshi;
|
|
int poslo;
|
|
int status;
|
|
} args = {
|
|
"seek",
|
|
3,
|
|
1,
|
|
};
|
|
|
|
args.instance = instance;
|
|
args.poshi = (int)(pos >> 32);
|
|
args.poslo = (int)pos;
|
|
if (openfirmware(&args) == -1)
|
|
return -1;
|
|
return args.status;
|
|
}
|
|
|
|
/*
|
|
* Memory functions.
|
|
*/
|
|
|
|
/* Claim an area of memory. */
|
|
void *
|
|
OF_claim(void *virt, u_int size, u_int align)
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
void *virt;
|
|
u_int size;
|
|
u_int align;
|
|
void *baseaddr;
|
|
} args = {
|
|
"claim",
|
|
3,
|
|
1,
|
|
};
|
|
|
|
args.virt = virt;
|
|
args.size = size;
|
|
args.align = align;
|
|
if (openfirmware(&args) == -1)
|
|
return (void *)-1;
|
|
return args.baseaddr;
|
|
}
|
|
|
|
/* Release an area of memory. */
|
|
void
|
|
OF_release(void *virt, u_int size)
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
void *virt;
|
|
u_int size;
|
|
} args = {
|
|
"release",
|
|
2,
|
|
0,
|
|
};
|
|
|
|
args.virt = virt;
|
|
args.size = size;
|
|
openfirmware(&args);
|
|
}
|
|
|
|
/*
|
|
* Control transfer functions.
|
|
*/
|
|
|
|
/* Reset the system and call "boot <bootspec>". */
|
|
void
|
|
OF_boot(char *bootspec)
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
char *bootspec;
|
|
} args = {
|
|
"boot",
|
|
1,
|
|
0,
|
|
};
|
|
|
|
args.bootspec = bootspec;
|
|
openfirmware(&args);
|
|
for (;;); /* just in case */
|
|
}
|
|
|
|
/* Suspend and drop back to the OpenFirmware interface. */
|
|
void
|
|
OF_enter()
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
} args = {
|
|
"enter",
|
|
0,
|
|
0
|
|
};
|
|
|
|
openfirmware(&args);
|
|
return; /* We may come back. */
|
|
}
|
|
|
|
/* Shut down and drop back to the OpenFirmware interface. */
|
|
void
|
|
OF_exit()
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
} args = {
|
|
"exit",
|
|
0,
|
|
0
|
|
};
|
|
|
|
openfirmware(&args);
|
|
for (;;); /* just in case */
|
|
}
|
|
|
|
/* Free <size> bytes starting at <virt>, then call <entry> with <arg>. */
|
|
#ifdef __notyet__
|
|
void
|
|
OF_chain(void *virt, u_int size, void (*entry)(), void *arg, u_int len)
|
|
{
|
|
static struct {
|
|
char *name;
|
|
int nargs;
|
|
int nreturns;
|
|
void *virt;
|
|
u_int size;
|
|
void (*entry)();
|
|
void *arg;
|
|
u_int len;
|
|
} args = {
|
|
"chain",
|
|
5,
|
|
0,
|
|
};
|
|
|
|
args.virt = virt;
|
|
args.size = size;
|
|
args.entry = entry;
|
|
args.arg = arg;
|
|
args.len = len;
|
|
openfirmware(&args);
|
|
}
|
|
#else
|
|
void
|
|
OF_chain(void *virt, u_int size, void (*entry)(), void *arg, u_int len)
|
|
{
|
|
/*
|
|
* This is a REALLY dirty hack till the firmware gets this going
|
|
*/
|
|
#if 0
|
|
OF_release(virt, size);
|
|
#endif
|
|
entry(0, 0, openfirmware, arg, len);
|
|
}
|
|
#endif
|