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mca.c revision 1.6
      1 /*	$NetBSD: mca.c,v 1.6 2001/11/13 07:46:26 lukem Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2000, 2001 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 <sys/cdefs.h>
     45 __KERNEL_RCSID(0, "$NetBSD: mca.c,v 1.6 2001/11/13 07:46:26 lukem Exp $");
     46 
     47 #include "opt_mcaverbose.h"
     48 
     49 #include <sys/param.h>
     50 #include <sys/systm.h>
     51 #include <sys/device.h>
     52 
     53 #include <machine/bus.h>
     54 
     55 #include <dev/mca/mcareg.h>
     56 #include <dev/mca/mcavar.h>
     57 #include <dev/mca/mcadevs.h>
     58 
     59 int	mca_match __P((struct device *, struct cfdata *, void *));
     60 void	mca_attach __P((struct device *, struct device *, void *));
     61 
     62 struct cfattach mca_ca = {
     63 	sizeof(struct device), mca_match, mca_attach
     64 };
     65 
     66 int	mca_submatch __P((struct device *, struct cfdata *, void *));
     67 int	mca_print __P((void *, const char *));
     68 
     69 int
     70 mca_match(parent, cf, aux)
     71 	struct device *parent;
     72 	struct cfdata *cf;
     73 	void *aux;
     74 {
     75 	struct mcabus_attach_args *mba = aux;
     76 
     77 	if (strcmp(mba->mba_busname, cf->cf_driver->cd_name))
     78 		return (0);
     79 
     80 	/* sanity (only mca0 supported currently) */
     81 	if (mba->mba_bus < 0 || mba->mba_bus > 0)
     82 		return (0);
     83 
     84 	/* XXX check other indicators? */
     85 
     86 	return (1);
     87 }
     88 
     89 int
     90 mca_print(aux, pnp)
     91 	void *aux;
     92 	const char *pnp;
     93 {
     94 	register struct mca_attach_args *ma = aux;
     95 	char devinfo[256];
     96 
     97 	if (pnp) {
     98 		mca_devinfo(ma->ma_id, devinfo);
     99 		printf("%s slot %d: %s", pnp, ma->ma_slot + 1, devinfo);
    100 	}
    101 
    102 	/*
    103 	 * Print "configured" for Memory Extension boards - there is no
    104 	 * meaningfull driver for them, they "just work".
    105 	 */
    106 	switch(ma->ma_id) {
    107 	case MCA_PRODUCT_HRAM: case MCA_PRODUCT_IQRAM: case MCA_PRODUCT_MICRAM:
    108 	case MCA_PRODUCT_ASTRAM: case MCA_PRODUCT_KINGRAM:
    109 	case MCA_PRODUCT_KINGRAM8: case MCA_PRODUCT_KINGRAM16:
    110 	case MCA_PRODUCT_KINGRAM609: case MCA_PRODUCT_HYPRAM:
    111 	case MCA_PRODUCT_QRAM1: case MCA_PRODUCT_QRAM2: case MCA_PRODUCT_EVERAM:
    112 	case MCA_PRODUCT_BOCARAM: case MCA_PRODUCT_IBMRAM1:
    113 	case MCA_PRODUCT_IBMRAM2: case MCA_PRODUCT_IBMRAM3:
    114 	case MCA_PRODUCT_IBMRAM4: case MCA_PRODUCT_IBMRAM5:
    115 	case MCA_PRODUCT_IBMRAM6: case MCA_PRODUCT_IBMRAM7:
    116 		printf(": configured\n");
    117 		return (QUIET);
    118 	default:
    119 		return (UNCONF);
    120 	}
    121 }
    122 
    123 int
    124 mca_submatch(parent, cf, aux)
    125 	struct device *parent;
    126 	struct cfdata *cf;
    127 	void *aux;
    128 {
    129 	struct mca_attach_args *ma = aux;
    130 
    131 	if (cf->mcacf_slot != MCA_UNKNOWN_SLOT &&
    132 	    cf->mcacf_slot != ma->ma_slot)
    133 		return 0;
    134 	return ((*cf->cf_attach->ca_match)(parent, cf, aux));
    135 }
    136 
    137 void
    138 mca_attach(parent, self, aux)
    139 	struct device *parent, *self;
    140 	void *aux;
    141 {
    142 	struct mcabus_attach_args *mba = aux;
    143 	bus_space_tag_t iot, memt;
    144 	bus_dma_tag_t dmat;
    145 	mca_chipset_tag_t mc;
    146 	int slot;
    147 
    148 	mca_attach_hook(parent, self, mba);
    149 	printf("\n");
    150 
    151 	iot = mba->mba_iot;
    152 	memt = mba->mba_memt;
    153 	mc = mba->mba_mc;
    154 	dmat = mba->mba_dmat;
    155 
    156 	/*
    157 	 * Search for and attach subdevices.
    158 	 *
    159 	 * NB: In the adapter setup register, slots are numbered from 0,
    160 	 * but officially they are numbered from 1.
    161 	 * We use the former convention internally and the latter for text
    162 	 * messages and in config files.
    163 	 */
    164 
    165 	for (slot = 0; slot < MCA_MAX_SLOTS; slot++) {
    166 		struct mca_attach_args ma;
    167 		int reg;
    168 
    169 		ma.ma_iot = iot;
    170 		ma.ma_memt = memt;
    171 		ma.ma_dmat = dmat;
    172 		ma.ma_mc = mc;
    173 		ma.ma_slot = slot;
    174 
    175 		for(reg = 0; reg < 8; reg++)
    176 			ma.ma_pos[reg]=mca_conf_read(mc, slot, reg);
    177 
    178 		ma.ma_id = ma.ma_pos[0] + (ma.ma_pos[1] << 8);
    179 		if (ma.ma_id == 0xffff)	/* no adapter here */
    180 			continue;
    181 
    182 		if (ma.ma_pos[2] & MCA_POS2_ENABLE
    183 		    || mca_match_disabled(ma.ma_id))
    184 			config_found_sm(self, &ma, mca_print, mca_submatch);
    185 		else {
    186 			mca_print(&ma, self->dv_xname);
    187 			printf(" disabled\n");
    188 		}
    189 	}
    190 }
    191