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isa.c revision 1.72 
      1 /*	$NetBSD: isa.c,v 1.72 1995/04/17 12:09:09 cgd Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1993, 1994 Charles Hannum.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed by Charles Hannum.
     17  * 4. The name of the author may not be used to endorse or promote products
     18  *    derived from this software without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/param.h>
     33 #include <sys/systm.h>
     34 #include <sys/kernel.h>
     35 #include <sys/conf.h>
     36 #include <sys/malloc.h>
     37 #include <sys/device.h>
     38 
     39 #include <dev/isa/isareg.h>
     40 #include <dev/isa/isavar.h>
     41 
     42 int isamatch __P((struct device *, void *, void *));
     43 void isaattach __P((struct device *, struct device *, void *));
     44 
     45 struct cfdriver isacd = {
     46 	NULL, "isa", isamatch, isaattach, DV_DULL, sizeof(struct device), 1
     47 };
     48 
     49 int
     50 isamatch(parent, match, aux)
     51 	struct device *parent;
     52 	void *match, *aux;
     53 {
     54 
     55 	return (1);
     56 }
     57 
     58 int
     59 isaprint(aux, isa)
     60 	void *aux;
     61 	char *isa;
     62 {
     63 	struct isa_attach_args *ia = aux;
     64 
     65 	if (ia->ia_iosize)
     66 		printf(" port 0x%x", ia->ia_iobase);
     67 	if (ia->ia_iosize > 1)
     68 		printf("-0x%x", ia->ia_iobase + ia->ia_iosize - 1);
     69 	if (ia->ia_msize)
     70 		printf(" iomem 0x%x", ia->ia_maddr);
     71 	if (ia->ia_msize > 1)
     72 		printf("-0x%x", ia->ia_maddr + ia->ia_msize - 1);
     73 	if (ia->ia_irq != IRQUNK)
     74 		printf(" irq %d", ia->ia_irq);
     75 	if (ia->ia_drq != DRQUNK)
     76 		printf(" drq %d", ia->ia_drq);
     77 	return (UNCONF);
     78 }
     79 
     80 void
     81 isascan(parent, match)
     82 	struct device *parent;
     83 	void *match;
     84 {
     85 	struct device *dev = match;
     86 	struct cfdata *cf = dev->dv_cfdata;
     87 	struct isa_attach_args ia;
     88 
     89 	if (cf->cf_fstate == FSTATE_STAR)
     90 		panic("not bloody likely");
     91 
     92 	ia.ia_iobase = cf->cf_loc[0];
     93 	ia.ia_iosize = 0x666;
     94 	ia.ia_maddr = cf->cf_loc[2];
     95 	ia.ia_msize = cf->cf_loc[3];
     96 	ia.ia_irq = cf->cf_loc[4] == 2 ? 9 : cf->cf_loc[4];
     97 	ia.ia_drq = cf->cf_loc[5];
     98 
     99 	if ((*cf->cf_driver->cd_match)(parent, dev, &ia) > 0)
    100 		config_attach(parent, dev, &ia, isaprint);
    101 	else
    102 		free(dev, M_DEVBUF);
    103 }
    104 
    105 void
    106 isaattach(parent, self, aux)
    107 	struct device *parent, *self;
    108 	void *aux;
    109 {
    110 	struct isa_softc *sc = (struct isa_softc *)self;
    111 
    112 	printf("\n");
    113 
    114 	TAILQ_INIT(&sc->sc_subdevs);
    115 	config_scan(isascan, self);
    116 }
    117 
    118 char *
    119 isa_intr_typename(type)
    120 	isa_intrtype type;
    121 {
    122 
    123 	switch (type) {
    124         case ISA_IST_NONE :
    125 		return ("none");
    126         case ISA_IST_PULSE:
    127 		return ("pulsed");
    128         case ISA_IST_EDGE:
    129 		return ("edge-triggered");
    130         case ISA_IST_LEVEL:
    131 		return ("level-triggered");
    132 	default:
    133 		panic("isa_intr_typename: invalid type %d", type);
    134 	}
    135 }
    136