File: [local] / sys / arch / sparc64 / sparc64 / openprom.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:08:25 2008 UTC (16 years, 6 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
Import of OpenBSD 4.2 release kernel tree with initial code to support
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO
Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)
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/* $OpenBSD: openprom.c,v 1.12 2007/08/10 14:25:08 fgsch Exp $ */
/* $NetBSD: openprom.c,v 1.4 2002/01/10 06:21:53 briggs Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratory.
*
* 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. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
*
* @(#)openprom.c 8.1 (Berkeley) 6/11/93
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/fcntl.h>
#include <sys/ioctl.h>
#include <sys/malloc.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <machine/bsd_openprom.h>
#include <machine/openpromio.h>
#include <machine/autoconf.h>
#include <machine/conf.h>
#include <dev/ofw/openfirm.h>
#define OPROMMAXPARAM 32
static int lastnode; /* speed hack */
extern int optionsnode; /* node ID of ROM's options */
static int openpromcheckid(int, int);
static int openpromgetstr(int, char *, char **);
int
openpromopen(dev, flags, mode, p)
dev_t dev;
int flags, mode;
struct proc *p;
{
return (0);
}
int
openpromclose(dev, flags, mode, p)
dev_t dev;
int flags, mode;
struct proc *p;
{
return (0);
}
/*
* Verify target ID is valid (exists in the OPENPROM tree), as
* listed from node ID sid forward.
*/
static int
openpromcheckid(sid, tid)
int sid, tid;
{
for (; sid != 0; sid = OF_peer(sid))
if (sid == tid || openpromcheckid(OF_child(sid), tid))
return (1);
return (0);
}
static int
openpromgetstr(len, user, cpp)
int len;
char *user, **cpp;
{
int error;
char *cp;
/* Reject obvious bogus requests */
if ((u_int)len > (8 * 1024) - 1)
return (ENAMETOOLONG);
*cpp = cp = malloc(len + 1, M_TEMP, M_WAITOK);
error = copyin(user, cp, len);
cp[len] = '\0';
return (error);
}
int
openpromioctl(dev, cmd, data, flags, p)
dev_t dev;
u_long cmd;
caddr_t data;
int flags;
struct proc *p;
{
struct opiocdesc *op;
int node, len, ok, error, s;
char *name, *value, *nextprop;
/* All too easy... */
if (cmd == OPIOCGETOPTNODE) {
*(int *)data = optionsnode;
return (0);
}
/* Verify node id */
op = (struct opiocdesc *)data;
node = op->op_nodeid;
if (node != 0 && node != lastnode && node != optionsnode) {
/* Not an easy one, must search for it */
s = splhigh();
ok = openpromcheckid(findroot(), node);
splx(s);
if (!ok)
return (EINVAL);
lastnode = node;
}
name = value = NULL;
error = 0;
switch (cmd) {
case OPIOCGET:
if ((flags & FREAD) == 0)
return (EBADF);
if (node == 0)
return (EINVAL);
error = openpromgetstr(op->op_namelen, op->op_name, &name);
if (error)
break;
s = splhigh();
len = getproplen(node, name);
splx(s);
if (len > op->op_buflen) {
error = ENOMEM;
break;
}
op->op_buflen = len;
/* -1 means no entry; 0 means no value */
if (len <= 0)
break;
value = malloc(len, M_TEMP, M_WAITOK);
s = splhigh();
error = getprop(node, name, 1, &len, (void **)&value);
splx(s);
if (error != 0)
break;
error = copyout(value, op->op_buf, len);
break;
case OPIOCSET:
if ((flags & FWRITE) == 0)
return (EBADF);
if (node == 0)
return (EINVAL);
error = openpromgetstr(op->op_namelen, op->op_name, &name);
if (error)
break;
error = openpromgetstr(op->op_buflen, op->op_buf, &value);
if (error)
break;
s = splhigh();
len = OF_setprop(node, name, value, op->op_buflen + 1);
splx(s);
if (len != op->op_buflen)
error = EINVAL;
break;
case OPIOCNEXTPROP:
if ((flags & FREAD) == 0)
return (EBADF);
if (node == 0)
return (EINVAL);
error = openpromgetstr(op->op_namelen, op->op_name, &name);
if (error)
break;
if (op->op_buflen <= 0) {
error = ENAMETOOLONG;
break;
}
value = nextprop = malloc(OPROMMAXPARAM, M_TEMP, M_WAITOK);
if (nextprop == NULL) {
error = ENOMEM;
break;
}
s = splhigh();
error = OF_nextprop(node, name, nextprop);
splx(s);
if (error == -1) {
error = EINVAL;
break;
}
if (error == 0) {
char nul = '\0';
op->op_buflen = 0;
error = copyout(&nul, op->op_buf, sizeof(char));
break;
}
len = strlen(nextprop);
if (len > op->op_buflen)
len = op->op_buflen;
else
op->op_buflen = len;
error = copyout(nextprop, op->op_buf, len);
break;
case OPIOCGETNEXT:
if ((flags & FREAD) == 0)
return (EBADF);
s = splhigh();
node = nextsibling(node);
splx(s);
*(int *)data = lastnode = node;
break;
case OPIOCGETCHILD:
if ((flags & FREAD) == 0)
return (EBADF);
if (node == 0)
return (EINVAL);
s = splhigh();
node = firstchild(node);
splx(s);
*(int *)data = lastnode = node;
break;
default:
return (ENOTTY);
}
if (name)
free(name, M_TEMP);
if (value)
free(value, M_TEMP);
return (error);
}