NetBSD/sys/arch/amiga/dev/empsc.c

/*	$NetBSD: empsc.c,v 1.21 2002/01/26 13:40:53 aymeric Exp $ */

/*

 * Copyright (c) 1995 Sean Riddle, Bo Najdrovsky
 * Copyright (c) 1994 Michael L. Hitch
 * Copyright (c) 1982, 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
 *
 */
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <dev/scsipi/scsi_all.h>
#include <dev/scsipi/scsipi_all.h>
#include <dev/scsipi/scsiconf.h>
#include <amiga/amiga/custom.h>
#include <amiga/amiga/device.h>
#include <amiga/amiga/isr.h>
#include <amiga/dev/scireg.h>
#include <amiga/dev/scivar.h>
#include <amiga/dev/zbusvar.h>

void empscattach(struct device *, struct device *, void *);
int empscmatch(struct device *, struct cfdata *, void *);
int empsc_intr(void *);

#ifdef DEBUG
extern int sci_debug;
#endif

extern int sci_data_wait;

struct cfattach empsc_ca = {
	sizeof(struct sci_softc), empscmatch, empscattach
};

/*
 * if this is an EMPLANT board
 */
int
empscmatch(struct device *pdp, struct cfdata *cfp, void *auxp)
{
	struct zbus_args *zap;

	zap = auxp;

	/*
	 * Check manufacturer and product id.
	 */
	if (zap->manid == 2171 && ((zap->prodid == 21)||(zap->prodid==32)))
		return(1);
	else
		return(0);
}

void
empscattach(struct device *pdp, struct device *dp, void *auxp)
{
	volatile u_char *rp;
	struct sci_softc *sc = (struct sci_softc *)dp;
	struct zbus_args *zap;
	struct scsipi_adapter *adapt = &sc->sc_adapter;
	struct scsipi_channel *chan = &sc->sc_channel;

	printf("\n");

	zap = auxp;

	rp = (u_char *)zap->va + 0x5000;

	sc->sci_data = rp;
	sc->sci_odata = rp;
	sc->sci_icmd = rp + 0x10;
	sc->sci_mode = rp + 0x20;
	sc->sci_tcmd = rp + 0x30;
	sc->sci_bus_csr = rp + 0x40;
	sc->sci_sel_enb = rp + 0x40;
	sc->sci_csr = rp + 0x50;
	sc->sci_dma_send = rp + 0x50;
	sc->sci_idata = rp + 0x60;
	sc->sci_trecv = rp + 0x60;
	sc->sci_iack = rp + 0x70;
	sc->sci_irecv = rp + 0x70;
	sc->sc_isr.isr_intr = empsc_intr;
	sc->sc_isr.isr_arg = sc;
	sc->sc_isr.isr_ipl = 2;
	add_isr(&sc->sc_isr);

	scireset(sc);

	/*
	 * Fill in the scsipi_adapter.
	 */
	memset(adapt, 0, sizeof(*adapt));
	adapt->adapt_dev = &sc->sc_dev;
	adapt->adapt_nchannels = 1;
	adapt->adapt_openings = 7;
	adapt->adapt_max_periph = 1;
	adapt->adapt_request = sci_scsipi_request;
	adapt->adapt_minphys = sci_minphys;

	/*
	 * Fill in the scsipi_channel.
	 */
	memset(chan, 0, sizeof(*chan));
	chan->chan_adapter = adapt;
	chan->chan_bustype = &scsi_bustype;
	chan->chan_channel = 0;
	chan->chan_ntargets = 8;
	chan->chan_nluns = 8;
	chan->chan_id = 7;

	/*
	 * attach all scsi units on us
	 */
	config_found(dp, chan, scsiprint);
}

int
empsc_intr(void *arg)
{
	struct sci_softc *dev = arg;
	u_char stat;

	if ((*dev->sci_csr & SCI_CSR_INT) == 0)
		return(0);
	stat = *dev->sci_iack;
	/* XXXX is: something is missing here, at least a: */
	return(1);
}