File: [local] / sys / dev / sbus / xbox.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:14:17 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: xbox.c,v 1.3 2006/06/02 20:00:56 miod Exp $ */
/*
* Copyright (c) 1999 Jason L. Wright (jason@thought.net)
* 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 THE AUTHOR ``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 AUTHOR 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.
*/
/*
* Driver for the Sun SBus Expansion Subsystem
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/syslog.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <machine/autoconf.h>
#include <machine/bus.h>
#include <machine/cpu.h>
#include <dev/sbus/sbusvar.h>
#include <dev/sbus/xboxreg.h>
#include <dev/sbus/xboxvar.h>
int xboxmatch(struct device *, void *, void *);
void xboxattach(struct device *, struct device *, void *);
int xboxprint(void *, const char *);
int xbox_fix_range(struct xbox_softc *sc, struct sbus_softc *sbp);
struct cfattach xbox_ca = {
sizeof (struct xbox_softc), xboxmatch, xboxattach
};
struct cfdriver xbox_cd = {
NULL, "xbox", DV_DULL
};
int
xboxmatch(struct device *parent, void *cf, void *aux)
{
struct sbus_attach_args *sa = aux;
if (strcmp("SUNW,xbox", sa->sa_name))
return (0);
return (1);
}
void
xboxattach(struct device *parent, struct device *self, void *aux)
{
struct xbox_softc *sc = (struct xbox_softc *)self;
struct sbus_attach_args *sa = aux;
int node = sa->sa_node;
struct xbox_attach_args xa;
bus_space_handle_t write0;
char *s;
s = getpropstring(node, "model");
printf(": model %s", s);
s = getpropstring(node, "child-present");
if (strcmp(s, "false") == 0) {
printf(": no devices\n");
return;
}
sc->sc_key = getpropint(node, "write0-key", -1);
sc->sc_node = node;
/*
* Setup transparent access
*/
if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot,
sa->sa_reg[0].sbr_offset, sa->sa_reg[0].sbr_size, 0, 0,
&write0) != 0) {
printf(": couldn't map write 0 register\n");
return;
}
bus_space_write_4(sa->sa_bustag, write0, 0,
(sc->sc_key << 24) | XAC_CTL1_OFFSET |
XBOX_CTL1_CSIE | XBOX_CTL1_TRANSPARENT);
bus_space_write_4(sa->sa_bustag, write0, 0,
(sc->sc_key << 24) | XBC_CTL1_OFFSET |
XBOX_CTL1_XSIE | XBOX_CTL1_XSBRE | XBOX_CTL1_XSSE);
DELAY(100);
bus_space_unmap(sa->sa_bustag, write0, sa->sa_reg[0].sbr_size);
printf("\n");
if (xbox_fix_range(sc, (struct sbus_softc *)parent) != 0)
return;
bzero(&xa, sizeof xa);
xa.xa_name = "sbus";
xa.xa_node = node;
xa.xa_bustag = sa->sa_bustag;
xa.xa_dmatag = sa->sa_dmatag;
(void)config_found(&sc->sc_dev, (void *)&xa, xboxprint);
}
/*
* Fix up our address ranges based on parent address spaces.
*/
int
xbox_fix_range(struct xbox_softc *sc, struct sbus_softc *sbp)
{
int error, i, j;
error = getprop(sc->sc_node, "ranges", sizeof(struct sbus_range),
&sc->sc_nrange, (void **)&sc->sc_range);
if (error != 0) {
printf("%s: PROM ranges too large\n", sc->sc_dev.dv_xname);
return (error);
}
for (i = 0; i < sc->sc_nrange; i++) {
for (j = 0; j < sbp->sc_nrange; j++) {
if (sc->sc_range[i].pspace == sbp->sc_range[j].cspace) {
sc->sc_range[i].poffset +=
sbp->sc_range[j].poffset;
sc->sc_range[i].pspace =
sbp->sc_range[j].pspace;
break;
}
}
}
return (0);
}
int
xboxprint(void *args, const char *bus)
{
struct xbox_attach_args *xa = args;
if (bus != NULL)
printf("%s at %s", xa->xa_name, bus);
return (UNCONF);
}