NetBSD-5.0.2/sys/arch/arm/ofw/openfirm.c
/* $NetBSD: openfirm.c,v 1.6 2007/02/28 20:31:40 macallan Exp $ */
/*
* Copyright 1997
* Digital Equipment Corporation. All rights reserved.
*
* This software is furnished under license and may be used and
* copied only in accordance with the following terms and conditions.
* Subject to these conditions, you may download, copy, install,
* use, modify and distribute this software in source and/or binary
* form. No title or ownership is transferred hereby.
*
* 1) Any source code used, modified or distributed must reproduce
* and retain this copyright notice and list of conditions as
* they appear in the source file.
*
* 2) No right is granted to use any trade name, trademark, or logo of
* Digital Equipment Corporation. Neither the "Digital Equipment
* Corporation" name nor any trademark or logo of Digital Equipment
* Corporation may be used to endorse or promote products derived
* from this software without the prior written permission of
* Digital Equipment Corporation.
*
* 3) This software is provided "AS-IS" and any express or implied
* warranties, including but not limited to, any implied warranties
* of merchantability, fitness for a particular purpose, or
* non-infringement are disclaimed. In no event shall DIGITAL be
* liable for any damages whatsoever, and in particular, DIGITAL
* shall not be liable for special, indirect, consequential, or
* incidental damages or damages for lost profits, loss of
* revenue or loss of use, whether such damages arise in contract,
* negligence, tort, under statute, in equity, at law or otherwise,
* even if advised of the possibility of such damage.
*/
/*
* 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: openfirm.c,v 1.6 2007/02/28 20:31:40 macallan Exp $");
#include <sys/param.h>
#include <machine/stdarg.h>
#include <dev/ofw/openfirm.h>
/*
* Wrapper routines for OFW client services.
*
* This code was adapted from the PowerPC version done by
* Wolfgang Solfrank. The main difference is that we don't
* do the silly "ofw_stack" dance to convert the OS's real-
* mode view of OFW to virtual-mode. We don't need to do
* that because our NetBSD port assumes virtual-mode OFW.
*
* We should work with Wolfgang to turn this into a MI file. -JJK
*/
int
OF_peer(phandle)
int phandle;
{
static struct {
const char *name;
int nargs;
int nreturns;
int phandle;
int sibling;
} args = {
"peer",
1,
1,
};
args.phandle = phandle;
if (openfirmware(&args) == -1)
return 0;
return args.sibling;
}
int
OF_child(phandle)
int phandle;
{
static struct {
const char *name;
int nargs;
int nreturns;
int phandle;
int child;
} args = {
"child",
1,
1,
};
args.phandle = phandle;
if (openfirmware(&args) == -1)
return 0;
return args.child;
}
int
OF_parent(phandle)
int phandle;
{
static struct {
const char *name;
int nargs;
int nreturns;
int phandle;
int parent;
} args = {
"parent",
1,
1,
};
args.phandle = phandle;
if (openfirmware(&args) == -1)
return 0;
return args.parent;
}
int
OF_instance_to_package(ihandle)
int ihandle;
{
static struct {
const char *name;
int nargs;
int nreturns;
int ihandle;
int phandle;
} args = {
"instance-to-package",
1,
1,
};
args.ihandle = ihandle;
if (openfirmware(&args) == -1)
return -1;
return args.phandle;
}
int
OF_nextprop(handle, prop, nextprop)
int handle;
const char *prop;
void *nextprop;
{
static struct {
const char *name;
int nargs;
int nreturns;
int phandle;
const char *prop;
void *nextprop;
int flags;
} args = {
"nextprop",
3,
1,
};
args.phandle = handle;
args.prop = prop;
args.nextprop = nextprop;
if (openfirmware(&args) == -1)
return -1;
return args.flags;
}
int
OF_getprop(handle, prop, buf, buflen)
int handle;
const char *prop;
void *buf;
int buflen;
{
static struct {
const char *name;
int nargs;
int nreturns;
int phandle;
const char *prop;
void *buf;
int buflen;
int size;
} args = {
"getprop",
4,
1,
};
args.phandle = handle;
args.prop = prop;
args.buf = buf;
args.buflen = buflen;
if (openfirmware(&args) == -1)
return -1;
return args.size;
}
int
OF_setprop(handle, prop, buf, buflen)
int handle;
const char *prop;
const void *buf;
int buflen;
{
static struct {
const char *name;
int nargs;
int nreturns;
int phandle;
const char *prop;
const void *buf;
int buflen;
int size;
} args = {
"setprop",
4,
1,
};
args.phandle = handle;
args.prop = prop;
args.buf = buf;
args.buflen = buflen;
if (openfirmware(&args) == -1)
return -1;
return args.size;
}
int
OF_getproplen(handle, prop)
int handle;
const char *prop;
{
static struct {
const char *name;
int nargs;
int nreturns;
int phandle;
const char *prop;
int size;
} args = {
"getproplen",
2,
1,
};
args.phandle = handle;
args.prop = prop;
if (openfirmware(&args) == -1)
return -1;
return args.size;
}
int
OF_finddevice(name)
const char *name;
{
static struct {
const char *name;
int nargs;
int nreturns;
const char *device;
int phandle;
} args = {
"finddevice",
1,
1,
};
args.device = name;
if (openfirmware(&args) == -1)
return -1;
return args.phandle;
}
int
OF_instance_to_path(ihandle, buf, buflen)
int ihandle;
char *buf;
int buflen;
{
static struct {
const char *name;
int nargs;
int nreturns;
int ihandle;
char *buf;
int buflen;
int length;
} args = {
"instance-to-path",
3,
1,
};
args.ihandle = ihandle;
args.buf = buf;
args.buflen = buflen;
if (openfirmware(&args) < 0)
return -1;
return args.length;
}
int
OF_package_to_path(phandle, buf, buflen)
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,
};
args.phandle = phandle;
args.buf = buf;
args.buflen = buflen;
if (openfirmware(&args) < 0)
return -1;
return args.length;
}
int
#ifdef __STDC__
OF_call_method(const char *method, int ihandle, int nargs, int nreturns, ...)
#else
OF_call_method(method, ihandle, nargs, nreturns, va_alist)
const char *method;
int ihandle;
int nargs;
int nreturns;
va_dcl
#endif
{
va_list ap;
static struct {
const char *name;
int nargs;
int nreturns;
const char *method;
int ihandle;
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.ihandle = ihandle;
va_start(ap, nreturns);
for (ip = args.args_n_results + (n = nargs); --n >= 0;)
*--ip = va_arg(ap, int);
if (openfirmware(&args) == -1) {
va_end(ap);
return -1;
}
/*
{
int i, res;
printf("call_method(%s): ihandle = %x, nargs = %d, nreturns = %d -- ",
method, ihandle, nargs, nreturns);
res = openfirmware(&args);
printf("res = %x\n", res);
printf("\targs_n_results = ");
for (i = 0; i < nargs + nreturns + 1; i++)
printf("%x ", args.args_n_results[i]);
printf("\n");
if (res == -1) return -1;
}
*/
if (args.args_n_results[nargs]) {
va_end(ap);
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;
}
int
#ifdef __STDC__
OF_call_method_1(const char *method, int ihandle, int nargs, ...)
#else
OF_call_method_1(method, ihandle, nargs, va_alist)
const char *method;
int ihandle;
int nargs;
va_dcl
#endif
{
va_list ap;
static struct {
const char *name;
int nargs;
int nreturns;
const char *method;
int ihandle;
int args_n_results[8];
} args = {
"call-method",
2,
2,
};
int *ip, n;
if (nargs > 6)
return -1;
args.nargs = nargs + 2;
args.method = method;
args.ihandle = ihandle;
va_start(ap, nargs);
for (ip = args.args_n_results + (n = nargs); --n >= 0;)
*--ip = va_arg(ap, int);
va_end(ap);
if (openfirmware(&args) == -1)
return -1;
/*
{
int i, res;
printf("call_method_1(%s): ihandle = %x, nargs = %d -- ",
method, ihandle, nargs);
res = openfirmware(&args);
printf("res = %x\n", res);
printf("\targs_n_results = ");
for (i = 0; i < nargs + 2; i++)
printf("%x ", args.args_n_results[i]);
printf("\n");
if (res == -1) return -1;
}
*/
if (args.args_n_results[nargs])
return -1;
return args.args_n_results[nargs + 1];
}
int
OF_open(dname)
const char *dname;
{
static struct {
const char *name;
int nargs;
int nreturns;
const char *dname;
int handle;
} args = {
"open",
1,
1,
};
args.dname = dname;
if (openfirmware(&args) == -1)
return -1;
return args.handle;
}
void
OF_close(handle)
int handle;
{
static struct {
const char *name;
int nargs;
int nreturns;
int handle;
} args = {
"close",
1,
0,
};
args.handle = handle;
openfirmware(&args);
}
int
OF_read(handle, addr, len)
int handle;
void *addr;
int len;
{
static struct {
const char *name;
int nargs;
int nreturns;
int ihandle;
void *addr;
int len;
int actual;
} args = {
"read",
3,
1,
};
args.ihandle = handle;
args.addr = addr;
args.len = len;
if (openfirmware(&args) == -1)
return -1;
return args.actual;
}
int
OF_write(handle, addr, len)
int handle;
const void *addr;
int len;
{
static struct {
const char *name;
int nargs;
int nreturns;
int ihandle;
const void *addr;
int len;
int actual;
} args = {
"write",
3,
1,
};
args.ihandle = handle;
args.addr = addr;
args.len = len;
if (openfirmware(&args) == -1)
return -1;
return args.actual;
}
int
OF_seek(handle, pos)
int handle;
u_quad_t pos;
{
static struct {
const char *name;
int nargs;
int nreturns;
int handle;
int poshi;
int poslo;
int status;
} args = {
"seek",
3,
1,
};
args.handle = handle;
args.poshi = (int)(pos >> 32);
args.poslo = (int)pos;
if (openfirmware(&args) == -1)
return -1;
return args.status;
}
void *
OF_claim(virt, size, align)
void *virt;
u_int size;
u_int align;
{
static struct {
const 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;
}
void
OF_release(virt, size)
void *virt;
u_int size;
{
static struct {
const char *name;
int nargs;
int nreturns;
void *virt;
u_int size;
} args = {
"release",
2,
0,
};
args.virt = virt;
args.size = size;
openfirmware(&args);
}
int
OF_milliseconds()
{
static struct {
const char *name;
int nargs;
int nreturns;
int ms;
} args = {
"milliseconds",
0,
1,
};
openfirmware(&args);
return args.ms;
}
void
OF_boot(bootspec)
const char *bootspec;
{
static struct {
const char *name;
int nargs;
int nreturns;
const char *bootspec;
} args = {
"boot",
1,
0,
};
args.bootspec = bootspec;
openfirmware(&args);
while (1); /* just in case */
}
void
OF_enter()
{
static struct {
const char *name;
int nargs;
int nreturns;
} args = {
"enter",
0,
0,
};
openfirmware(&args);
}
void
OF_exit()
{
static struct {
const char *name;
int nargs;
int nreturns;
} args = {
"exit",
0,
0,
};
openfirmware(&args);
while (1); /* just in case */
}
void
(*OF_set_callback(newfunc))(void *)
void (*newfunc)(void *);
{
static struct {
const char *name;
int nargs;
int nreturns;
void (*newfunc)(void *);
void (*oldfunc)(void *);
} args = {
"set-callback",
1,
1,
};
args.newfunc = newfunc;
if (openfirmware(&args) == -1)
return 0;
return args.oldfunc;
}