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mca.c revision 1.1 
      1 /*	$NetBSD: mca.c,v 1.1 2000/05/11 15:42:05 jdolecek Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2000 The NetBSD Foundation, Inc.
      5  * Copyright (c) 1996-1999 Scott D. Telford.
      6  * All rights reserved.
      7  *
      8  * This code is derived from software contributed to The NetBSD Foundation
      9  * by Scott Telford <s.telford (at) ed.ac.uk>.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions and the following disclaimer.
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  * 3. All advertising materials mentioning features or use of this software
     20  *    must display the following acknowledgement:
     21  *	This product includes software developed by the NetBSD
     22  *	Foundation, Inc. and its contributors.
     23  * 4. Neither the name of The NetBSD Foundation nor the names of its
     24  *    contributors may be used to endorse or promote products derived
     25  *    from this software without specific prior written permission.
     26  *
     27  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     28  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     29  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     30  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     31  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     37  * POSSIBILITY OF SUCH DAMAGE.
     38  */
     39 
     40 /*
     41  * MCA Bus device
     42  */
     43 
     44 #include "opt_mcaverbose.h"
     45 
     46 #include <sys/param.h>
     47 #include <sys/systm.h>
     48 #include <sys/device.h>
     49 
     50 #include <machine/bus.h>
     51 
     52 #include <dev/mca/mcareg.h>
     53 #include <dev/mca/mcavar.h>
     54 
     55 
     56 int	mca_match __P((struct device *, struct cfdata *, void *));
     57 void	mca_attach __P((struct device *, struct device *, void *));
     58 
     59 struct cfattach mca_ca = {
     60 	sizeof(struct device), mca_match, mca_attach
     61 };
     62 
     63 int	mca_submatch __P((struct device *, struct cfdata *, void *));
     64 int	mca_print __P((void *, const char *));
     65 
     66 int
     67 mca_match(parent, cf, aux)
     68 	struct device *parent;
     69 	struct cfdata *cf;
     70 	void *aux;
     71 {
     72 	struct mcabus_attach_args *mba = aux;
     73 
     74 	if (strcmp(mba->mba_busname, cf->cf_driver->cd_name))
     75 		return (0);
     76 
     77 	/* sanity (only mca0 supported currently) */
     78 	if (mba->mba_bus < 0 || mba->mba_bus > 0)
     79 		return (0);
     80 
     81 	/* XXX check other indicators? */
     82 
     83 	return (1);
     84 }
     85 
     86 int
     87 mca_print(aux, pnp)
     88 	void *aux;
     89 	const char *pnp;
     90 {
     91 	register struct mca_attach_args *ma = aux;
     92 	char devinfo[256];
     93 
     94 	if (pnp) {
     95 		mca_devinfo(ma->ma_id, devinfo);
     96 		printf("%s slot %d: %s", pnp, ma->ma_slot + 1, devinfo);
     97 	}
     98 
     99 	return (mca_issupp(ma->ma_id)) ? UNCONF : UNSUPP;
    100 }
    101 
    102 int
    103 mca_submatch(parent, cf, aux)
    104 	struct device *parent;
    105 	struct cfdata *cf;
    106 	void *aux;
    107 {
    108 	struct mca_attach_args *ma = aux;
    109 
    110 	if (cf->mcacf_slot != MCA_UNKNOWN_SLOT &&
    111 	    cf->mcacf_slot != ma->ma_slot)
    112 		return 0;
    113 	return ((*cf->cf_attach->ca_match)(parent, cf, aux));
    114 }
    115 
    116 void
    117 mca_attach(parent, self, aux)
    118 	struct device *parent, *self;
    119 	void *aux;
    120 {
    121 	struct mcabus_attach_args *mba = aux;
    122 	bus_space_tag_t iot, memt;
    123 	bus_dma_tag_t dmat;
    124 	mca_chipset_tag_t mc;
    125 	int slot;
    126 
    127 	mca_attach_hook(parent, self, mba);
    128 	printf("\n");
    129 
    130 	iot = mba->mba_iot;
    131 	memt = mba->mba_memt;
    132 	mc = mba->mba_mc;
    133 	dmat = mba->mba_dmat;
    134 
    135 	/*
    136 	 * Search for and attach subdevices.
    137 	 *
    138 	 * NB: In the adapter setup register, slots are numbered from 0,
    139 	 * but officially they are numbered from 1.
    140 	 * We use the former convention internally and the latter for text
    141 	 * messages and in config files.
    142 	 */
    143 
    144 	for (slot = 0; slot < MCA_MAX_SLOTS; slot++) {
    145 		struct mca_attach_args ma;
    146 		int reg;
    147 
    148 		ma.ma_iot = iot;
    149 		ma.ma_memt = memt;
    150 		ma.ma_dmat = dmat;
    151 		ma.ma_mc = mc;
    152 		ma.ma_slot = slot;
    153 
    154 		for(reg = 0; reg < 8; reg++)
    155 			ma.ma_pos[reg]=mca_conf_read(mc, slot, reg);
    156 
    157 		ma.ma_id = ma.ma_pos[0] + (ma.ma_pos[1] << 8);
    158 		if (ma.ma_id == 0xffff)	/* no adapter here */
    159 			continue;
    160 
    161 		if (ma.ma_pos[2] & MCA_POS2_ENABLE)
    162 			config_found_sm(self, &ma, mca_print, mca_submatch);
    163 		else {
    164 			mca_print(&ma, self->dv_xname);
    165 			printf(" disabled\n");
    166 		}
    167 	}
    168 }
    169