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/* $NetBSD: pccons_isa.c,v 1.12 2011/07/01 19:25:41 dyoung Exp $ */
/* NetBSD: vga_isa.c,v 1.4 2000/08/14 20:14:51 thorpej 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/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pccons_isa.c,v 1.12 2011/07/01 19:25:41 dyoung Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/bus.h>
#include <dev/isa/isavar.h>
#include <arc/dev/pcconsvar.h>
#include <arc/isa/pccons_isavar.h>
static int pccons_isa_match(device_t, cfdata_t, void *);
static void pccons_isa_attach(device_t, device_t, void *);
CFATTACH_DECL_NEW(pc_isa, sizeof(struct pc_softc),
pccons_isa_match, pccons_isa_attach, NULL, NULL);
struct pccons_config *pccons_isa_conf;
static int
pccons_isa_match(device_t parent, cfdata_t cf, void *aux)
{
struct isa_attach_args *ia = aux;
bus_addr_t iobase = 0x3b0; /* XXX mono 0x3b0 color 0x3c0 */
bus_size_t iosize = 0x30; /* XXX 0x20 */
bus_addr_t maddr = 0xa0000;
bus_size_t msize = 0x20000;
int irq = 1;
if (ia->ia_nio < 1)
return 0;
if (ia->ia_io[0].ir_addr != ISA_UNKNOWN_PORT)
iobase = ia->ia_io[0].ir_addr;
#if 0 /* XXX isa.c */
if (ia->ia_iosize != 0)
iosize = ia->ia_iosize;
#endif
if (ia->ia_niomem < 1)
return 0;
if (ia->ia_iomem[0].ir_addr != ISA_UNKNOWN_IOMEM)
maddr = ia->ia_iomem[0].ir_addr;
if (ia->ia_iomem[0].ir_size != ISA_UNKNOWN_IOSIZ)
msize = ia->ia_iomem[0].ir_size;
if (ia->ia_nirq < 1)
return 0;
if (ia->ia_irq[0].ir_irq != ISA_UNKNOWN_IRQ)
irq = ia->ia_irq[0].ir_irq;
#if 0
/* If values are hardwired to something that they can't be, punt. */
if (iobase != 0x3b0 || iosize != 0x30 ||
maddr != 0xa0000 || msize != 0x20000 ||
ia->ia_irq != 1 || ia->ia_drq != DRQUNK)
return 0;
#endif
if (pccons_isa_conf == NULL)
return 0;
if (!pccons_common_match(ia->ia_iot, ia->ia_memt, ia->ia_iot,
pccons_isa_conf))
return 0;
ia->ia_nio = 1;
ia->ia_io[0].ir_addr = iobase;
ia->ia_io[0].ir_size = iosize;
ia->ia_niomem = 1;
ia->ia_iomem[0].ir_addr = maddr;
ia->ia_iomem[0].ir_size = msize;
ia->ia_nirq = 1;
ia->ia_irq[0].ir_irq = irq;
ia->ia_ndrq = 0;
return 1;
}
static void
pccons_isa_attach(device_t parent, device_t self, void *aux)
{
struct pc_softc *sc = device_private(self);
struct isa_attach_args *ia = aux;
sc->sc_dev = self;
isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, IST_EDGE, IPL_TTY,
pcintr, sc);
pccons_common_attach(sc, ia->ia_iot, ia->ia_memt, ia->ia_iot,
pccons_isa_conf);
}
int
pccons_isa_cnattach(bus_space_tag_t iot, bus_space_tag_t memt)
{
if (pccons_isa_conf == NULL)
return ENXIO;
pccons_common_cnattach(iot, memt, iot, pccons_isa_conf);
return 0;
}
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