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pccons_isa.c revision 1.1 
      1 /* $NetBSD: pccons_isa.c,v 1.1 2001/06/13 15:05:45 soda Exp $ */
      2 /* NetBSD: vga_isa.c,v 1.4 2000/08/14 20:14:51 thorpej Exp  */
      3 
      4 /*
      5  * Copyright (c) 1995, 1996 Carnegie-Mellon University.
      6  * All rights reserved.
      7  *
      8  * Author: Chris G. Demetriou
      9  *
     10  * Permission to use, copy, modify and distribute this software and
     11  * its documentation is hereby granted, provided that both the copyright
     12  * notice and this permission notice appear in all copies of the
     13  * software, derivative works or modified versions, and any portions
     14  * thereof, and that both notices appear in supporting documentation.
     15  *
     16  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     17  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
     18  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     19  *
     20  * Carnegie Mellon requests users of this software to return to
     21  *
     22  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     23  *  School of Computer Science
     24  *  Carnegie Mellon University
     25  *  Pittsburgh PA 15213-3890
     26  *
     27  * any improvements or extensions that they make and grant Carnegie the
     28  * rights to redistribute these changes.
     29  */
     30 
     31 #include <sys/param.h>
     32 #include <sys/systm.h>
     33 #include <sys/device.h>
     34 
     35 #include <machine/bus.h>
     36 
     37 #include <dev/isa/isavar.h>
     38 
     39 #include <arc/dev/pcconsvar.h>
     40 #include <arc/isa/pccons_isavar.h>
     41 
     42 int	pccons_isa_match __P((struct device *, struct cfdata *, void *));
     43 void	pccons_isa_attach __P((struct device *, struct device *, void *));
     44 
     45 struct cfattach pc_isa_ca = {
     46 	sizeof(struct pc_softc), pccons_isa_match, pccons_isa_attach,
     47 };
     48 
     49 struct pccons_config *pccons_isa_conf;
     50 
     51 int
     52 pccons_isa_match(parent, match, aux)
     53 	struct device *parent;
     54 	struct cfdata *match;
     55 	void *aux;
     56 {
     57 	struct isa_attach_args *ia = aux;
     58 	bus_addr_t iobase = 0x3b0;	/* XXX mono 0x3b0 color 0x3c0 */
     59 	bus_size_t iosize = 0x30;	/* XXX 0x20 */
     60 	bus_addr_t maddr = 0xa0000;
     61 	bus_size_t msize = 0x20000;
     62 	int irq = 1;
     63 
     64 	if (ia->ia_iobase != IOBASEUNK)
     65 		iobase = ia->ia_iobase;
     66 #if 0	/* XXX isa.c */
     67 	if (ia->ia_iosize != 0)
     68 		iosize = ia->ia_iosize;
     69 #endif
     70 	if (ia->ia_maddr != MADDRUNK)
     71 		maddr = ia->ia_maddr;
     72 	if (ia->ia_msize != 0)
     73 		msize = ia->ia_msize;
     74 	if (ia->ia_irq != IRQUNK)
     75 		irq = ia->ia_irq;
     76 
     77 #if 0
     78 	/* If values are hardwired to something that they can't be, punt. */
     79 	if (iobase != 0x3b0 || iosize != 0x30 ||
     80 	    maddr != 0xa0000 || msize != 0x20000 ||
     81 	    ia->ia_irq != 1 || ia->ia_drq != DRQUNK)
     82 		return (0);
     83 #endif
     84 
     85 	if (pccons_isa_conf == NULL)
     86 		return (0);
     87 
     88 	if (!pccons_common_match(ia->ia_iot, ia->ia_memt, ia->ia_iot,
     89 	    pccons_isa_conf))
     90 		return (0);
     91 
     92 	ia->ia_iobase = iobase;
     93 	ia->ia_iosize = iosize;
     94 	ia->ia_maddr = maddr;
     95 	ia->ia_msize = msize;
     96 	return (1);
     97 }
     98 
     99 void
    100 pccons_isa_attach(parent, self, aux)
    101 	struct device *parent, *self;
    102 	void *aux;
    103 {
    104 	struct pc_softc *sc = (struct pc_softc *)self;
    105 	struct isa_attach_args *ia = aux;
    106 
    107 	isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, IPL_TTY,
    108 	    pcintr, self);
    109 	pccons_common_attach(sc, ia->ia_iot, ia->ia_memt, ia->ia_iot,
    110 	    pccons_isa_conf);
    111 }
    112 
    113 int
    114 pccons_isa_cnattach(iot, memt)
    115 	bus_space_tag_t iot, memt;
    116 {
    117 	if (pccons_isa_conf == NULL)
    118 		return (ENXIO);
    119 
    120 	pccons_common_cnattach(iot, memt, iot, pccons_isa_conf);
    121 	return (0);
    122 }
    123