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/* $OpenBSD: vga_isa.c,v 1.9 2010/08/28 12:48:14 miod Exp $ */
/* $NetBSD: vga_isa.c,v 1.3 1998/06/12 18:45:48 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/mc6845reg.h>
#include <dev/ic/pcdisplayvar.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
};
int vga_isa_match(struct device *, void *, void *);
void vga_isa_attach(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(struct device *parent, void *match, void *aux)
{
struct isa_attach_args *ia = aux;
/* If values are hardwired to something that they can't be, punt. */
if ((ia->ia_iobase != IOBASEUNK && ia->ia_iobase != 0x3b0) ||
/* ia->ia_iosize != 0 || XXX isa.c */
(ia->ia_maddr != MADDRUNK && ia->ia_maddr != 0xa0000) ||
(ia->ia_msize != 0 && ia->ia_msize != 0x20000) ||
ia->ia_irq != IRQUNK || ia->ia_drq != DRQUNK)
return (0);
if (!vga_is_console(ia->ia_iot, WSDISPLAY_TYPE_ISAVGA) &&
!vga_common_probe(ia->ia_iot, ia->ia_memt))
return (0);
ia->ia_iobase = 0x3b0; /* XXX mono 0x3b0 color 0x3c0 */
ia->ia_iosize = 0x30; /* XXX 0x20 */
ia->ia_maddr = 0xa0000;
ia->ia_msize = 0x20000;
return (2); /* more than generic pcdisplay */
}
void
vga_isa_attach(struct device *parent, struct device *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(bus_space_tag_t iot, bus_space_tag_t memt)
{
return (vga_cnattach(iot, memt, WSDISPLAY_TYPE_ISAVGA, 1));
}
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