* Copyright (c) 2000, 2001 The NetBSD Foundation, Inc.

/* $NetBSD: mca.c,v 1.34 2021/08/07 16:19:13 thorpej Exp $ */

/*-
* Copyright (c) 2000, 2001 The NetBSD Foundation, Inc.
* Copyright (c) 1996-1999 Scott D. Telford.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Scott Telford <[email protected]>.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

/*
* MCA Bus device
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: mca.c,v 1.34 2021/08/07 16:19:13 thorpej Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>

#include <sys/bus.h>
#include <machine/mca_machdep.h>

#include <dev/mca/mcareg.h>
#include <dev/mca/mcavar.h>
#include <dev/mca/mcadevs.h>

#include "locators.h"

int mca_match(device_t, cfdata_t, void *);
void mca_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(mca, 0,
mca_match, mca_attach, NULL, NULL);

int mca_print(void *, const char *);

int
mca_match(device_t parent, cfdata_t cf, void *aux)
{
struct mcabus_attach_args *mba = aux;

/* sanity (only mca0 supported currently) */
if (mba->mba_bus < 0 || mba->mba_bus > 0)
return (0);

/* XXX check other indicators? */

return (1);
}

int
mca_print(void *aux, const char *pnp)
{
register struct mca_attach_args *ma = aux;
char devinfo[256];

if (pnp) {
mca_devinfo(ma->ma_id, devinfo, sizeof(devinfo));
aprint_normal("%s slot %d: %s", pnp, ma->ma_slot + 1, devinfo);
}

/*
* Print "configured" for Memory Extension boards - there is no
* meaningfull driver for them, they "just work".
*/
switch(ma->ma_id) {
case MCA_PRODUCT_HRAM: case MCA_PRODUCT_IQRAM: case MCA_PRODUCT_MICRAM:
case MCA_PRODUCT_ASTRAM: case MCA_PRODUCT_KINGRAM:
case MCA_PRODUCT_KINGRAM8: case MCA_PRODUCT_KINGRAM16:
case MCA_PRODUCT_KINGRAM609: case MCA_PRODUCT_HYPRAM:
case MCA_PRODUCT_QRAM1: case MCA_PRODUCT_QRAM2: case MCA_PRODUCT_EVERAM:
case MCA_PRODUCT_BOCARAM: case MCA_PRODUCT_IBMRAM1:
case MCA_PRODUCT_IBMRAM2: case MCA_PRODUCT_IBMRAM3:
case MCA_PRODUCT_IBMRAM4: case MCA_PRODUCT_IBMRAM5:
case MCA_PRODUCT_IBMRAM6: case MCA_PRODUCT_IBMRAM7:
aprint_normal(": memory configured\n");
return (QUIET);
default:
return (UNCONF);
}
}

void
mca_attach(device_t parent, device_t self, void *aux)
{
struct mcabus_attach_args *mba = aux;
bus_space_tag_t iot, memt;
bus_dma_tag_t dmat;
mca_chipset_tag_t mc;
int slot;

mca_attach_hook(parent, self, mba);
aprint_naive("\n");
aprint_normal("\n");

iot = mba->mba_iot;
memt = mba->mba_memt;
mc = mba->mba_mc;
dmat = mba->mba_dmat;

/*
* Search for and attach subdevices.
*
* NB: In the adapter setup register, slots are numbered from 0,
* but officially they are numbered from 1.
* We use the former convention internally and the latter for text
* messages and in config files.
*/

for (slot = 0; slot < MCA_MAX_SLOTS; slot++) {
struct mca_attach_args ma;
int reg;
int locs[MCACF_NLOCS];

ma.ma_iot = iot;
ma.ma_memt = memt;
ma.ma_dmat = dmat;
ma.ma_mc = mc;
ma.ma_slot = slot;

for(reg = 0; reg < 8; reg++)
ma.ma_pos[reg]=mca_conf_read(mc, slot, reg);

ma.ma_id = ma.ma_pos[0] + (ma.ma_pos[1] << 8);
if (ma.ma_id == 0xffff) /* no adapter here */
continue;

locs[MCACF_SLOT] = slot;

if (ma.ma_pos[2] & MCA_POS2_ENABLE
|| mca_match_disabled(ma.ma_id))
config_found(self, &ma, mca_print,
CFARGS(.submatch = config_stdsubmatch,
.locators = locs));
else {
mca_print(&ma, device_xname(self));
aprint_normal(" disabled\n");
}
}
}