138 lines
3.6 KiB
C
138 lines
3.6 KiB
C
/* $NetBSD: pccons_isa.c,v 1.4 2002/10/02 04:59:48 thorpej Exp $ */
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/* NetBSD: vga_isa.c,v 1.4 2000/08/14 20:14:51 thorpej Exp */
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/*
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* Copyright (c) 1995, 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <machine/bus.h>
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#include <dev/isa/isavar.h>
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#include <arc/dev/pcconsvar.h>
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#include <arc/isa/pccons_isavar.h>
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int pccons_isa_match __P((struct device *, struct cfdata *, void *));
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void pccons_isa_attach __P((struct device *, struct device *, void *));
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CFATTACH_DECL(pc_isa, sizeof(struct pc_softc),
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pccons_isa_match, pccons_isa_attach, NULL, NULL);
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struct pccons_config *pccons_isa_conf;
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int
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pccons_isa_match(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct isa_attach_args *ia = aux;
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bus_addr_t iobase = 0x3b0; /* XXX mono 0x3b0 color 0x3c0 */
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bus_size_t iosize = 0x30; /* XXX 0x20 */
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bus_addr_t maddr = 0xa0000;
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bus_size_t msize = 0x20000;
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int irq = 1;
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if (ia->ia_nio < 1)
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return (0);
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if (ia->ia_io[0].ir_addr != ISACF_PORT_DEFAULT)
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iobase = ia->ia_io[0].ir_addr;
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#if 0 /* XXX isa.c */
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if (ia->ia_iosize != 0)
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iosize = ia->ia_iosize;
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#endif
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if (ia->ia_niomem < 1)
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return (0);
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if (ia->ia_iomem[0].ir_addr != ISACF_IOMEM_DEFAULT)
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maddr = ia->ia_iomem[0].ir_addr;
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if (ia->ia_iomem[0].ir_size != ISACF_IOSIZ_DEFAULT)
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msize = ia->ia_iomem[0].ir_size;
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if (ia->ia_nirq < 1)
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return (0);
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if (ia->ia_irq[0].ir_irq != ISACF_IRQ_DEFAULT)
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irq = ia->ia_irq[0].ir_irq;
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#if 0
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/* If values are hardwired to something that they can't be, punt. */
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if (iobase != 0x3b0 || iosize != 0x30 ||
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maddr != 0xa0000 || msize != 0x20000 ||
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ia->ia_irq != 1 || ia->ia_drq != DRQUNK)
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return (0);
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#endif
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if (pccons_isa_conf == NULL)
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return (0);
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if (!pccons_common_match(ia->ia_iot, ia->ia_memt, ia->ia_iot,
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pccons_isa_conf))
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return (0);
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ia->ia_nio = 1;
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ia->ia_io[0].ir_addr = iobase;
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ia->ia_io[0].ir_size = iosize;
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ia->ia_niomem = 1;
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ia->ia_iomem[0].ir_addr = maddr;
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ia->ia_iomem[0].ir_size = msize;
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ia->ia_nirq = 1;
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ia->ia_irq[0].ir_irq = irq;
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ia->ia_ndrq = 0;
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return (1);
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}
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void
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pccons_isa_attach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct pc_softc *sc = (struct pc_softc *)self;
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struct isa_attach_args *ia = aux;
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isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, IST_EDGE, IPL_TTY,
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pcintr, self);
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pccons_common_attach(sc, ia->ia_iot, ia->ia_memt, ia->ia_iot,
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pccons_isa_conf);
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}
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int
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pccons_isa_cnattach(iot, memt)
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bus_space_tag_t iot, memt;
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{
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if (pccons_isa_conf == NULL)
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return (ENXIO);
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pccons_common_cnattach(iot, memt, iot, pccons_isa_conf);
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return (0);
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}
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