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mca.c revision 1.17.6.4
      1 /*	$NetBSD: mca.c,v 1.17.6.4 2007/10/27 11:32:17 yamt 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 1.17.6.4 2007/10/27 11:32:17 yamt Exp $");
     46 
     47 #include <sys/param.h>
     48 #include <sys/systm.h>
     49 #include <sys/device.h>
     50 
     51 #include <sys/bus.h>
     52 #include <machine/mca_machdep.h>
     53 
     54 #include <dev/mca/mcareg.h>
     55 #include <dev/mca/mcavar.h>
     56 #include <dev/mca/mcadevs.h>
     57 
     58 #include "locators.h"
     59 
     60 int	mca_match(struct device *, struct cfdata *, void *);
     61 void	mca_attach(struct device *, struct device *, void *);
     62 
     63 CFATTACH_DECL(mca, sizeof(struct device),
     64     mca_match, mca_attach, NULL, NULL);
     65 
     66 int	mca_print(void *, const char *);
     67 
     68 int
     69 mca_match(struct device *parent, struct cfdata *cf, void *aux)
     70 {
     71 	struct mcabus_attach_args *mba = aux;
     72 
     73 	/* sanity (only mca0 supported currently) */
     74 	if (mba->mba_bus < 0 || mba->mba_bus > 0)
     75 		return (0);
     76 
     77 	/* XXX check other indicators? */
     78 
     79 	return (1);
     80 }
     81 
     82 int
     83 mca_print(aux, pnp)
     84 	void *aux;
     85 	const char *pnp;
     86 {
     87 	register struct mca_attach_args *ma = aux;
     88 	char devinfo[256];
     89 
     90 	if (pnp) {
     91 		mca_devinfo(ma->ma_id, devinfo, sizeof(devinfo));
     92 		aprint_normal("%s slot %d: %s", pnp, ma->ma_slot + 1, devinfo);
     93 	}
     94 
     95 	/*
     96 	 * Print "configured" for Memory Extension boards - there is no
     97 	 * meaningfull driver for them, they "just work".
     98 	 */
     99 	switch(ma->ma_id) {
    100 	case MCA_PRODUCT_HRAM: case MCA_PRODUCT_IQRAM: case MCA_PRODUCT_MICRAM:
    101 	case MCA_PRODUCT_ASTRAM: case MCA_PRODUCT_KINGRAM:
    102 	case MCA_PRODUCT_KINGRAM8: case MCA_PRODUCT_KINGRAM16:
    103 	case MCA_PRODUCT_KINGRAM609: case MCA_PRODUCT_HYPRAM:
    104 	case MCA_PRODUCT_QRAM1: case MCA_PRODUCT_QRAM2: case MCA_PRODUCT_EVERAM:
    105 	case MCA_PRODUCT_BOCARAM: case MCA_PRODUCT_IBMRAM1:
    106 	case MCA_PRODUCT_IBMRAM2: case MCA_PRODUCT_IBMRAM3:
    107 	case MCA_PRODUCT_IBMRAM4: case MCA_PRODUCT_IBMRAM5:
    108 	case MCA_PRODUCT_IBMRAM6: case MCA_PRODUCT_IBMRAM7:
    109 		aprint_normal(": memory configured\n");
    110 		return (QUIET);
    111 	default:
    112 		return (UNCONF);
    113 	}
    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 		int locs[MCACF_NLOCS];
    148 
    149 		ma.ma_iot = iot;
    150 		ma.ma_memt = memt;
    151 		ma.ma_dmat = dmat;
    152 		ma.ma_mc = mc;
    153 		ma.ma_slot = slot;
    154 
    155 		for(reg = 0; reg < 8; reg++)
    156 			ma.ma_pos[reg]=mca_conf_read(mc, slot, reg);
    157 
    158 		ma.ma_id = ma.ma_pos[0] + (ma.ma_pos[1] << 8);
    159 		if (ma.ma_id == 0xffff)	/* no adapter here */
    160 			continue;
    161 
    162 		locs[MCACF_SLOT] = slot;
    163 
    164 		if (ma.ma_pos[2] & MCA_POS2_ENABLE
    165 		    || mca_match_disabled(ma.ma_id))
    166 			config_found_sm_loc(self, "mca", locs, &ma,
    167 					    mca_print, config_stdsubmatch);
    168 		else {
    169 			mca_print(&ma, self->dv_xname);
    170 			printf(" disabled\n");
    171 		}
    172 	}
    173 }
    174