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opms_isa.c revision 1.4.6.4 
      1 /* $NetBSD: opms_isa.c,v 1.4.6.4 2005/01/24 08:33:58 skrll 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/cdefs.h>
     31 __KERNEL_RCSID(0, "$NetBSD: opms_isa.c,v 1.4.6.4 2005/01/24 08:33:58 skrll Exp $");
     32 
     33 #include <sys/param.h>
     34 #include <sys/systm.h>
     35 #include <sys/tty.h>
     36 #include <sys/device.h>
     37 
     38 #include <machine/bus.h>
     39 
     40 #include <dev/isa/isareg.h>
     41 #include <dev/isa/isavar.h>
     42 
     43 #include <arc/dev/pcconsvar.h>
     44 #include <arc/dev/opmsvar.h>
     45 
     46 int	opms_isa_match(struct device *, struct cfdata *, void *);
     47 void	opms_isa_attach(struct device *, struct device *, void *);
     48 
     49 CFATTACH_DECL(opms_isa, sizeof(struct opms_softc),
     50     opms_isa_match, opms_isa_attach, NULL, NULL);
     51 
     52 struct pccons_config *pccons_isa_conf;	/* share stroage with pccons_isa.c */
     53 
     54 int
     55 opms_isa_match(struct device *parent, struct cfdata *match, 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 != ISA_UNKNOWN_PORT)
     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 != ISA_UNKNOWN_IRQ)
     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(struct device *parent, struct device *self, void *aux)
    102 {
    103 	struct opms_softc *sc = (struct opms_softc *)self;
    104 	struct isa_attach_args *ia = aux;
    105 
    106 	printf("\n");
    107 
    108 	isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, IST_EDGE, IPL_TTY,
    109 	    pcintr, self);
    110 	opms_common_attach(sc, ia->ia_iot, pccons_isa_conf);
    111 }
    112