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isa.c revision 1.76 
      1 /*	$NetBSD: isa.c,v 1.76 1996/01/16 07:52:38 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 <dev/isa/isareg.h>
     40 #include <dev/isa/isavar.h>
     41 
     42 int
     43 isaprint(aux, isa)
     44 	void *aux;
     45 	char *isa;
     46 {
     47 	struct isa_attach_args *ia = aux;
     48 
     49 	if (ia->ia_iosize)
     50 		printf(" port 0x%x", ia->ia_iobase);
     51 	if (ia->ia_iosize > 1)
     52 		printf("-0x%x", ia->ia_iobase + ia->ia_iosize - 1);
     53 	if (ia->ia_msize)
     54 		printf(" iomem 0x%x", ia->ia_maddr);
     55 	if (ia->ia_msize > 1)
     56 		printf("-0x%x", ia->ia_maddr + ia->ia_msize - 1);
     57 	if (ia->ia_irq != IRQUNK)
     58 		printf(" irq %d", ia->ia_irq);
     59 	if (ia->ia_drq != DRQUNK)
     60 		printf(" drq %d", ia->ia_drq);
     61 	return (UNCONF);
     62 }
     63 
     64 void
     65 isascan(parent, match)
     66 	struct device *parent;
     67 	void *match;
     68 {
     69 	struct device *dev = match;
     70 	struct cfdata *cf = dev->dv_cfdata;
     71 	struct isa_attach_args ia;
     72 
     73 	if (cf->cf_fstate == FSTATE_STAR)
     74 		panic("clone devices not supported on ISA bus");
     75 
     76 	ia.ia_iobase = cf->cf_loc[0];
     77 	ia.ia_iosize = 0x666;
     78 	ia.ia_maddr = cf->cf_loc[2];
     79 	ia.ia_msize = cf->cf_loc[3];
     80 	ia.ia_irq = cf->cf_loc[4] == 2 ? 9 : cf->cf_loc[4];
     81 	ia.ia_drq = cf->cf_loc[5];
     82 
     83 	if ((*cf->cf_driver->cd_match)(parent, dev, &ia) > 0)
     84 		config_attach(parent, dev, &ia, isaprint);
     85 	else
     86 		free(dev, M_DEVBUF);
     87 }
     88 
     89 char *
     90 isa_intr_typename(type)
     91 	int type;
     92 {
     93 
     94 	switch (type) {
     95         case IST_NONE :
     96 		return ("none");
     97         case IST_PULSE:
     98 		return ("pulsed");
     99         case IST_EDGE:
    100 		return ("edge-triggered");
    101         case IST_LEVEL:
    102 		return ("level-triggered");
    103 	default:
    104 		panic("isa_intr_typename: invalid type %d", type);
    105 	}
    106 }
    107