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isa.c revision 1.69 
      1 /*	$NetBSD: isa.c,v 1.69 1994/11/18 22:25:17 mycroft 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 <i386/isa/isareg.h>
     40 #include <i386/isa/isavar.h>
     41 
     42 #include <machine/limits.h>
     43 
     44 /* sorry, has to be here, no place else really suitable */
     45 #include <machine/pc/display.h>
     46 u_short *Crtat = (u_short *)MONO_BUF;
     47 
     48 int isamatch __P((struct device *, void *, void *));
     49 void isaattach __P((struct device *, struct device *, void *));
     50 
     51 struct cfdriver isacd = {
     52 	NULL, "isa", isamatch, isaattach, DV_DULL, sizeof(struct device), 1
     53 };
     54 
     55 int
     56 isamatch(parent, match, aux)
     57 	struct device *parent;
     58 	void *match, *aux;
     59 {
     60 
     61 	return (1);
     62 }
     63 
     64 int
     65 isaprint(aux, isa)
     66 	void *aux;
     67 	char *isa;
     68 {
     69 	struct isa_attach_args *ia = aux;
     70 
     71 	if (ia->ia_iosize)
     72 		printf(" port 0x%x", ia->ia_iobase);
     73 	if (ia->ia_iosize > 1)
     74 		printf("-0x%x", ia->ia_iobase + ia->ia_iosize - 1);
     75 	if (ia->ia_msize)
     76 		printf(" iomem 0x%x", kvtop(ia->ia_maddr));
     77 	if (ia->ia_msize > 1)
     78 		printf("-0x%x", kvtop(ia->ia_maddr) + ia->ia_msize - 1);
     79 	if (ia->ia_irq != IRQUNK)
     80 		printf(" irq %d", ia->ia_irq);
     81 	if (ia->ia_drq != DRQUNK)
     82 		printf(" drq %d", ia->ia_drq);
     83 	/* XXXX print flags */
     84 	return (QUIET);
     85 }
     86 
     87 void
     88 isascan(parent, match)
     89 	struct device *parent;
     90 	void *match;
     91 {
     92 	struct device *dev = match;
     93 	struct cfdata *cf = dev->dv_cfdata;
     94 	struct isa_attach_args ia;
     95 
     96 	if (cf->cf_fstate == FSTATE_STAR)
     97 		panic("not bloody likely");
     98 
     99 	ia.ia_iobase = cf->cf_loc[0];
    100 	ia.ia_iosize = 0x666;
    101 	ia.ia_maddr = cf->cf_loc[2] - 0xa0000 + atdevbase;
    102 	ia.ia_msize = cf->cf_loc[3];
    103 	if (cf->cf_loc[4] == 2)
    104 		cf->cf_loc[4] = 9;
    105 	ia.ia_irq = cf->cf_loc[4];
    106 	ia.ia_drq = cf->cf_loc[5];
    107 
    108 	if ((*cf->cf_driver->cd_match)(parent, dev, &ia) > 0)
    109 		config_attach(parent, dev, &ia, isaprint);
    110 	else
    111 		free(dev, M_DEVBUF);
    112 }
    113 
    114 void
    115 isaattach(parent, self, aux)
    116 	struct device *parent, *self;
    117 	void *aux;
    118 {
    119 
    120 	printf("\n");
    121 
    122 	config_scan(isascan, self);
    123 }
    124