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opms_isa.c revision 1.2 
      1 /* $NetBSD: opms_isa.c,v 1.2 2002/01/07 21:46:57 thorpej Exp $ */
      2 
      3 /*
      4  * Copyright (c) 1995, 1996 Carnegie-Mellon University.
      5  * All rights reserved.
      6  *
      7  * Author: Chris G. Demetriou
      8  *
      9  * Permission to use, copy, modify and distribute this software and
     10  * its documentation is hereby granted, provided that both the copyright
     11  * notice and this permission notice appear in all copies of the
     12  * software, derivative works or modified versions, and any portions
     13  * thereof, and that both notices appear in supporting documentation.
     14  *
     15  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     16  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
     17  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     18  *
     19  * Carnegie Mellon requests users of this software to return to
     20  *
     21  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     22  *  School of Computer Science
     23  *  Carnegie Mellon University
     24  *  Pittsburgh PA 15213-3890
     25  *
     26  * any improvements or extensions that they make and grant Carnegie the
     27  * rights to redistribute these changes.
     28  */
     29 
     30 #include <sys/param.h>
     31 #include <sys/systm.h>
     32 #include <sys/tty.h>
     33 #include <sys/device.h>
     34 
     35 #include <machine/bus.h>
     36 
     37 #include <dev/isa/isareg.h>
     38 #include <dev/isa/isavar.h>
     39 
     40 #include <arc/dev/pcconsvar.h>
     41 #include <arc/dev/opmsvar.h>
     42 
     43 int	opms_isa_match __P((struct device *, struct cfdata *, void *));
     44 void	opms_isa_attach __P((struct device *, struct device *, void *));
     45 
     46 struct cfattach opms_isa_ca = {
     47 	sizeof(struct opms_softc), opms_isa_match, opms_isa_attach,
     48 };
     49 
     50 struct pccons_config *pccons_isa_conf;	/* share stroage with pccons_isa.c */
     51 
     52 int
     53 opms_isa_match(parent, match, aux)
     54 	struct device *parent;
     55 	struct cfdata *match;
     56 	void *aux;
     57 {
     58 	struct isa_attach_args *ia = aux;
     59 	bus_addr_t iobase = IO_KBD;
     60 	bus_size_t iosize = IO_KBDSIZE;
     61 	int irq = 12;
     62 
     63 	if (ia->ia_nio < 1)
     64 		return (0);
     65 	if (ia->ia_io[0].ir_addr != ISACF_PORT_DEFAULT)
     66 		iobase = ia->ia_io[0].ir_addr;
     67 #if 0	/* XXX isa.c */
     68 	if (ia->ia_iosize != 0)
     69 		iosize = ia->ia_iosize;
     70 #endif
     71 	if (ia->ia_irq[0].ir_irq != ISACF_IRQ_DEFAULT)
     72 		irq = ia->ia_irq[0].ir_irq;
     73 
     74 #if 0
     75 	/* If values are hardwired to something that they can't be, punt. */
     76 	if (iobase != IO_KBD || iosize != IO_KBDSIZE ||
     77 	    ia->ia_maddr != MADDRUNK || ia->ia_msize != 0 ||
     78 	    ia->ia_irq != 1 || ia->ia_drq != DRQUNK)
     79 		return (0);
     80 #endif
     81 
     82 	if (pccons_isa_conf == NULL)
     83 		return (0);
     84 
     85 	if (!opms_common_match(ia->ia_iot, pccons_isa_conf))
     86 		return (0);
     87 
     88 	ia->ia_nio = 1;
     89 	ia->ia_io[0].ir_addr = iobase;
     90 	ia->ia_io[0].ir_size = iosize;
     91 
     92 	ia->ia_nirq = 1;
     93 	ia->ia_irq[0].ir_irq = irq;
     94 
     95 	ia->ia_niomem = 0;
     96 	ia->ia_ndrq = 0;
     97 
     98 	return (1);
     99 }
    100 
    101 void
    102 opms_isa_attach(parent, self, aux)
    103 	struct device *parent, *self;
    104 	void *aux;
    105 {
    106 	struct opms_softc *sc = (struct opms_softc *)self;
    107 	struct isa_attach_args *ia = aux;
    108 
    109 	printf("\n");
    110 
    111 	isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, IST_EDGE, IPL_TTY,
    112 	    pcintr, self);
    113 	opms_common_attach(sc, ia->ia_iot, pccons_isa_conf);
    114 }
    115