119 lines
3.0 KiB
C
119 lines
3.0 KiB
C
|
/* $NetBSD: vga_isa.c,v 1.1 1998/03/22 15:14:35 drochner 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/vgareg.h>
|
||
|
|
#include <dev/ic/vgavar.h>
|
||
|
|
#include <dev/isa/vga_isavar.h>
|
||
|
|
|
||
|
|
#include <dev/wscons/wsconsio.h>
|
||
|
|
#include <dev/wscons/wsdisplayvar.h>
|
||
|
|
|
||
|
|
struct vga_isa_softc {
|
||
|
|
struct device sc_dev;
|
||
|
|
#if 0
|
||
|
|
struct vga_config *sc_vc; /* VGA configuration */
|
||
|
|
#endif
|
||
|
|
};
|
||
|
|
|
||
|
|
#ifdef __BROKEN_INDIRECT_CONFIG
|
||
|
|
int vga_isa_match __P((struct device *, void *, void *));
|
||
|
|
#else
|
||
|
|
int vga_isa_match __P((struct device *, struct cfdata *, void *));
|
||
|
|
#endif
|
||
|
|
void vga_isa_attach __P((struct device *, struct device *, void *));
|
||
|
|
|
||
|
|
struct cfattach vga_isa_ca = {
|
||
|
|
sizeof(struct vga_isa_softc), vga_isa_match, vga_isa_attach,
|
||
|
|
};
|
||
|
|
|
||
|
|
int
|
||
|
|
vga_isa_match(parent, match, aux)
|
||
|
|
struct device *parent;
|
||
|
|
#ifdef __BROKEN_INDIRECT_CONFIG
|
||
|
|
void *match;
|
||
|
|
#else
|
||
|
|
struct cfdata *match;
|
||
|
|
#endif
|
||
|
|
void *aux;
|
||
|
|
{
|
||
|
|
struct isa_attach_args *ia = aux;
|
||
|
|
int rv;
|
||
|
|
|
||
|
|
/* If values are hardwired to something that they can't be, punt. */
|
||
|
|
if (ia->ia_iobase != IOBASEUNK || /* ia->ia_iosize != 0 || XXX isa.c */
|
||
|
|
(ia->ia_maddr != MADDRUNK && ia->ia_maddr != 0xb8000) ||
|
||
|
|
(ia->ia_msize != 0 && ia->ia_msize != 0x8000) ||
|
||
|
|
ia->ia_irq != IRQUNK || ia->ia_drq != DRQUNK)
|
||
|
|
return (0);
|
||
|
|
|
||
|
|
if (vga_is_console(ia->ia_iot, WSDISPLAY_TYPE_ISAVGA))
|
||
|
|
rv = 1;
|
||
|
|
else
|
||
|
|
rv = vga_common_probe(ia->ia_iot, ia->ia_memt);
|
||
|
|
|
||
|
|
if (rv) {
|
||
|
|
ia->ia_iobase = 0x3b0;
|
||
|
|
ia->ia_iosize = 0x30;
|
||
|
|
ia->ia_maddr = 0xb8000;
|
||
|
|
ia->ia_msize = 0x8000;
|
||
|
|
}
|
||
|
|
return (rv);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
vga_isa_attach(parent, self, aux)
|
||
|
|
struct device *parent, *self;
|
||
|
|
void *aux;
|
||
|
|
{
|
||
|
|
struct isa_attach_args *ia = aux;
|
||
|
|
#if 0
|
||
|
|
struct vga_isa_softc *sc = (struct vga_isa_softc *)self;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
printf("\n");
|
||
|
|
|
||
|
|
vga_common_attach(self, ia->ia_iot, ia->ia_memt,
|
||
|
|
WSDISPLAY_TYPE_ISAVGA);
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
vga_isa_cnattach(iot, memt)
|
||
|
|
bus_space_tag_t iot, memt;
|
||
|
|
{
|
||
|
|
return (vga_cnattach(iot, memt, WSDISPLAY_TYPE_ISAVGA, 1));
|
||
|
|
}
|