NetBSD/sys/arch/dnard/ofw/vga_ofbus.c

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2001-05-09 20:08:43 +04:00
/* $NetBSD: vga_ofbus.c,v 1.1 2001/05/09 16:08:45 matt Exp $ */
/*
* Copyright (c) 1995, 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <dev/isa/isavar.h>
#include <dev/ic/mc6845reg.h>
#include <dev/ic/pcdisplayvar.h>
#include <dev/ic/vgareg.h>
#include <dev/ic/vgavar.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/ofw/openfirm.h>
#if 0
#include <dnard/ofw/vga_ofisavar.h>
#endif
struct vga_ofbus_softc {
struct device sc_dev;
int sc_phandle;
#if 0
struct vga_config *sc_vc; /* VGA configuration */
#endif
};
int vga_ofbus_match (struct device *, struct cfdata *, void *);
void vga_ofbus_attach (struct device *, struct device *, void *);
struct cfattach vga_ofbus_ca = {
sizeof(struct vga_ofbus_softc), vga_ofbus_match, vga_ofbus_attach,
};
static const char *compat_strings[] = { "pnpPNP,900", 0 };
int
vga_ofbus_match(struct device *parent, struct cfdata *match, void *aux)
{
struct ofbus_attach_args *oba = aux;
if (of_compatible(oba->oba_phandle, compat_strings) == -1)
return (0);
if (!vga_is_console(&isa_io_bs_tag, WSDISPLAY_TYPE_ISAVGA) &&
!vga_common_probe(&isa_io_bs_tag, &isa_mem_bs_tag))
return (0);
return (2); /* more than generic pcdisplay */
}
void
vga_ofbus_attach(struct device *parent, struct device *self, void *aux)
{
struct ofbus_attach_args *oba = aux;
struct vga_ofbus_softc *sc = (struct vga_ofbus_softc *)self;
printf("\n");
sc->sc_phandle = oba->oba_phandle;
vga_common_attach(self, &isa_io_bs_tag, &isa_mem_bs_tag, WSDISPLAY_TYPE_ISAVGA, NULL);
}
int
vga_ofbus_cnattach(int phandle, bus_space_tag_t iot, bus_space_tag_t memt)
{
if (OF_call_method("text-mode3", phandle, 0, 0) != 0) {
printf("vga_ofbus_match: text-mode3 method invocation on VGA "
"screen device failed\n");
}
return (vga_cnattach(iot, memt, WSDISPLAY_TYPE_ISAVGA, 1));
}