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empsc.c revision 1.21 
      1 /*	$NetBSD: empsc.c,v 1.21 2002/01/26 13:40:53 aymeric Exp $ */
      2 
      3 /*
      4 
      5  * Copyright (c) 1995 Sean Riddle, Bo Najdrovsky
      6  * Copyright (c) 1994 Michael L. Hitch
      7  * Copyright (c) 1982, 1990 The Regents of the University of California.
      8  * All rights reserved.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the University of
     21  *	California, Berkeley and its contributors.
     22  * 4. Neither the name of the University nor the names of its contributors
     23  *    may be used to endorse or promote products derived from this software
     24  *    without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36  * SUCH DAMAGE.
     37  *
     38  */
     39 #include <sys/param.h>
     40 #include <sys/systm.h>
     41 #include <sys/kernel.h>
     42 #include <sys/device.h>
     43 #include <dev/scsipi/scsi_all.h>
     44 #include <dev/scsipi/scsipi_all.h>
     45 #include <dev/scsipi/scsiconf.h>
     46 #include <amiga/amiga/custom.h>
     47 #include <amiga/amiga/device.h>
     48 #include <amiga/amiga/isr.h>
     49 #include <amiga/dev/scireg.h>
     50 #include <amiga/dev/scivar.h>
     51 #include <amiga/dev/zbusvar.h>
     52 
     53 void empscattach(struct device *, struct device *, void *);
     54 int empscmatch(struct device *, struct cfdata *, void *);
     55 int empsc_intr(void *);
     56 
     57 #ifdef DEBUG
     58 extern int sci_debug;
     59 #endif
     60 
     61 extern int sci_data_wait;
     62 
     63 struct cfattach empsc_ca = {
     64 	sizeof(struct sci_softc), empscmatch, empscattach
     65 };
     66 
     67 /*
     68  * if this is an EMPLANT board
     69  */
     70 int
     71 empscmatch(struct device *pdp, struct cfdata *cfp, void *auxp)
     72 {
     73 	struct zbus_args *zap;
     74 
     75 	zap = auxp;
     76 
     77 	/*
     78 	 * Check manufacturer and product id.
     79 	 */
     80 	if (zap->manid == 2171 && ((zap->prodid == 21)||(zap->prodid==32)))
     81 		return(1);
     82 	else
     83 		return(0);
     84 }
     85 
     86 void
     87 empscattach(struct device *pdp, struct device *dp, void *auxp)
     88 {
     89 	volatile u_char *rp;
     90 	struct sci_softc *sc = (struct sci_softc *)dp;
     91 	struct zbus_args *zap;
     92 	struct scsipi_adapter *adapt = &sc->sc_adapter;
     93 	struct scsipi_channel *chan = &sc->sc_channel;
     94 
     95 	printf("\n");
     96 
     97 	zap = auxp;
     98 
     99 	rp = (u_char *)zap->va + 0x5000;
    100 
    101 	sc->sci_data = rp;
    102 	sc->sci_odata = rp;
    103 	sc->sci_icmd = rp + 0x10;
    104 	sc->sci_mode = rp + 0x20;
    105 	sc->sci_tcmd = rp + 0x30;
    106 	sc->sci_bus_csr = rp + 0x40;
    107 	sc->sci_sel_enb = rp + 0x40;
    108 	sc->sci_csr = rp + 0x50;
    109 	sc->sci_dma_send = rp + 0x50;
    110 	sc->sci_idata = rp + 0x60;
    111 	sc->sci_trecv = rp + 0x60;
    112 	sc->sci_iack = rp + 0x70;
    113 	sc->sci_irecv = rp + 0x70;
    114 	sc->sc_isr.isr_intr = empsc_intr;
    115 	sc->sc_isr.isr_arg = sc;
    116 	sc->sc_isr.isr_ipl = 2;
    117 	add_isr(&sc->sc_isr);
    118 
    119 	scireset(sc);
    120 
    121 	/*
    122 	 * Fill in the scsipi_adapter.
    123 	 */
    124 	memset(adapt, 0, sizeof(*adapt));
    125 	adapt->adapt_dev = &sc->sc_dev;
    126 	adapt->adapt_nchannels = 1;
    127 	adapt->adapt_openings = 7;
    128 	adapt->adapt_max_periph = 1;
    129 	adapt->adapt_request = sci_scsipi_request;
    130 	adapt->adapt_minphys = sci_minphys;
    131 
    132 	/*
    133 	 * Fill in the scsipi_channel.
    134 	 */
    135 	memset(chan, 0, sizeof(*chan));
    136 	chan->chan_adapter = adapt;
    137 	chan->chan_bustype = &scsi_bustype;
    138 	chan->chan_channel = 0;
    139 	chan->chan_ntargets = 8;
    140 	chan->chan_nluns = 8;
    141 	chan->chan_id = 7;
    142 
    143 	/*
    144 	 * attach all scsi units on us
    145 	 */
    146 	config_found(dp, chan, scsiprint);
    147 }
    148 
    149 int
    150 empsc_intr(void *arg)
    151 {
    152 	struct sci_softc *dev = arg;
    153 	u_char stat;
    154 
    155 	if ((*dev->sci_csr & SCI_CSR_INT) == 0)
    156 		return(0);
    157 	stat = *dev->sci_iack;
    158 	/* XXXX is: something is missing here, at least a: */
    159 	return(1);
    160 }
    161