Home | History | Annotate | Line # | Download | only in isa
opms_isa.c revision 1.4 
      1 /* $NetBSD: opms_isa.c,v 1.4 2002/10/02 04:59:48 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 CFATTACH_DECL(opms_isa, sizeof(struct opms_softc),
     47     opms_isa_match, opms_isa_attach, NULL, NULL);
     48 
     49 struct pccons_config *pccons_isa_conf;	/* share stroage with pccons_isa.c */
     50 
     51 int
     52 opms_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 = IO_KBD;
     59 	bus_size_t iosize = IO_KBDSIZE;
     60 	int irq = 12;
     61 
     62 	if (ia->ia_nio < 1)
     63 		return (0);
     64 	if (ia->ia_io[0].ir_addr != ISACF_PORT_DEFAULT)
     65 		iobase = ia->ia_io[0].ir_addr;
     66 #if 0	/* XXX isa.c */
     67 	if (ia->ia_iosize != 0)
     68 		iosize = ia->ia_iosize;
     69 #endif
     70 	if (ia->ia_irq[0].ir_irq != ISACF_IRQ_DEFAULT)
     71 		irq = ia->ia_irq[0].ir_irq;
     72 
     73 #if 0
     74 	/* If values are hardwired to something that they can't be, punt. */
     75 	if (iobase != IO_KBD || iosize != IO_KBDSIZE ||
     76 	    ia->ia_maddr != MADDRUNK || ia->ia_msize != 0 ||
     77 	    ia->ia_irq != 1 || ia->ia_drq != DRQUNK)
     78 		return (0);
     79 #endif
     80 
     81 	if (pccons_isa_conf == NULL)
     82 		return (0);
     83 
     84 	if (!opms_common_match(ia->ia_iot, pccons_isa_conf))
     85 		return (0);
     86 
     87 	ia->ia_nio = 1;
     88 	ia->ia_io[0].ir_addr = iobase;
     89 	ia->ia_io[0].ir_size = iosize;
     90 
     91 	ia->ia_nirq = 1;
     92 	ia->ia_irq[0].ir_irq = irq;
     93 
     94 	ia->ia_niomem = 0;
     95 	ia->ia_ndrq = 0;
     96 
     97 	return (1);
     98 }
     99 
    100 void
    101 opms_isa_attach(parent, self, aux)
    102 	struct device *parent, *self;
    103 	void *aux;
    104 {
    105 	struct opms_softc *sc = (struct opms_softc *)self;
    106 	struct isa_attach_args *ia = aux;
    107 
    108 	printf("\n");
    109 
    110 	isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, IST_EDGE, IPL_TTY,
    111 	    pcintr, self);
    112 	opms_common_attach(sc, ia->ia_iot, pccons_isa_conf);
    113 }
    114