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lm_isa.c revision 1.3.4.2 
      1 /*	$NetBSD: lm_isa.c,v 1.3.4.2 2002/01/11 23:39:09 nathanw Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2000 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Bill Squier.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/cdefs.h>
     40 __KERNEL_RCSID(0, "$NetBSD: lm_isa.c,v 1.3.4.2 2002/01/11 23:39:09 nathanw Exp $");
     41 
     42 #include <sys/param.h>
     43 #include <sys/systm.h>
     44 #include <sys/kernel.h>
     45 #include <sys/proc.h>
     46 #include <sys/device.h>
     47 #include <sys/malloc.h>
     48 #include <sys/errno.h>
     49 #include <sys/conf.h>
     50 
     51 #include <machine/bus.h>
     52 
     53 #include <dev/isa/isareg.h>
     54 #include <dev/isa/isavar.h>
     55 
     56 #include <machine/intr.h>
     57 #include <machine/bus.h>
     58 
     59 #include <dev/sysmon/sysmonvar.h>
     60 
     61 #include <dev/ic/nslm7xvar.h>
     62 
     63 #if defined(LMDEBUG)
     64 #define DPRINTF(x)		do { printf x; } while (0)
     65 #else
     66 #define DPRINTF(x)
     67 #endif
     68 
     69 
     70 int lm_isa_match __P((struct device *, struct cfdata *, void *));
     71 void lm_isa_attach __P((struct device *, struct device *, void *));
     72 
     73 struct cfattach lm_isa_ca = {
     74 	sizeof(struct lm_softc), lm_isa_match, lm_isa_attach
     75 };
     76 
     77 
     78 int
     79 lm_isa_match(parent, match, aux)
     80 	struct device *parent;
     81 	struct cfdata *match;
     82 	void *aux;
     83 {
     84 	bus_space_tag_t iot;
     85 	bus_space_handle_t ioh;
     86 	struct isa_attach_args *ia = aux;
     87 	int iobase;
     88 	int rv;
     89 
     90 	/* Must supply an address */
     91 	if (ia->ia_nio < 1)
     92 		return (0);
     93 
     94 	if (ISA_DIRECT_CONFIG(ia))
     95 		return (0);
     96 
     97 	if (ia->ia_io[0].ir_addr == ISACF_PORT_DEFAULT)
     98 		return (0);
     99 
    100 	iot = ia->ia_iot;
    101 	iobase = ia->ia_io[0].ir_addr;
    102 
    103 	if (bus_space_map(iot, iobase, 8, 0, &ioh))
    104 		return (0);
    105 
    106 
    107 	/* Bus independent probe */
    108 	rv = lm_probe(iot, ioh);
    109 
    110 	bus_space_unmap(iot, ioh, 8);
    111 
    112 	if (rv) {
    113 		ia->ia_nio = 1;
    114 		ia->ia_io[0].ir_size = 8;
    115 
    116 		ia->ia_niomem = 0;
    117 		ia->ia_nirq = 0;
    118 		ia->ia_ndrq = 0;
    119 	}
    120 
    121 	return (rv);
    122 }
    123 
    124 
    125 void
    126 lm_isa_attach(parent, self, aux)
    127 	struct device *parent, *self;
    128 	void *aux;
    129 {
    130 	struct lm_softc *lmsc = (void *)self;
    131 	int iobase;
    132 	bus_space_tag_t iot;
    133 	struct isa_attach_args *ia = aux;
    134 
    135         iobase = ia->ia_io[0].ir_addr;
    136 	iot = lmsc->lm_iot = ia->ia_iot;
    137 
    138 	if (bus_space_map(iot, iobase, 8, 0, &lmsc->lm_ioh)) {
    139 		printf(": can't map i/o space\n");
    140 		return;
    141 	}
    142 
    143 	/* Bus-independant attachment */
    144 	lm_attach(lmsc);
    145 }
    146