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empsc.c revision 1.24 
      1 /*	$NetBSD: empsc.c,v 1.24 2002/10/02 04:55:49 thorpej 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 
     40 #include <sys/cdefs.h>
     41 __KERNEL_RCSID(0, "$NetBSD: empsc.c,v 1.24 2002/10/02 04:55:49 thorpej Exp $");
     42 
     43 #include <sys/param.h>
     44 #include <sys/systm.h>
     45 #include <sys/kernel.h>
     46 #include <sys/device.h>
     47 #include <dev/scsipi/scsi_all.h>
     48 #include <dev/scsipi/scsipi_all.h>
     49 #include <dev/scsipi/scsiconf.h>
     50 #include <amiga/amiga/custom.h>
     51 #include <amiga/amiga/device.h>
     52 #include <amiga/amiga/isr.h>
     53 #include <amiga/dev/scireg.h>
     54 #include <amiga/dev/scivar.h>
     55 #include <amiga/dev/zbusvar.h>
     56 
     57 void empscattach(struct device *, struct device *, void *);
     58 int empscmatch(struct device *, struct cfdata *, void *);
     59 int empsc_intr(void *);
     60 
     61 #ifdef DEBUG
     62 extern int sci_debug;
     63 #endif
     64 
     65 extern int sci_data_wait;
     66 
     67 CFATTACH_DECL(empsc, sizeof(struct sci_softc),
     68     empscmatch, empscattach, NULL, NULL);
     69 
     70 /*
     71  * if this is an EMPLANT board
     72  */
     73 int
     74 empscmatch(struct device *pdp, struct cfdata *cfp, void *auxp)
     75 {
     76 	struct zbus_args *zap;
     77 
     78 	zap = auxp;
     79 
     80 	/*
     81 	 * Check manufacturer and product id.
     82 	 */
     83 	if (zap->manid == 2171 && ((zap->prodid == 21)||(zap->prodid==32)))
     84 		return(1);
     85 	else
     86 		return(0);
     87 }
     88 
     89 void
     90 empscattach(struct device *pdp, struct device *dp, void *auxp)
     91 {
     92 	volatile u_char *rp;
     93 	struct sci_softc *sc = (struct sci_softc *)dp;
     94 	struct zbus_args *zap;
     95 	struct scsipi_adapter *adapt = &sc->sc_adapter;
     96 	struct scsipi_channel *chan = &sc->sc_channel;
     97 
     98 	printf("\n");
     99 
    100 	zap = auxp;
    101 
    102 	rp = (u_char *)zap->va + 0x5000;
    103 
    104 	sc->sci_data = rp;
    105 	sc->sci_odata = rp;
    106 	sc->sci_icmd = rp + 0x10;
    107 	sc->sci_mode = rp + 0x20;
    108 	sc->sci_tcmd = rp + 0x30;
    109 	sc->sci_bus_csr = rp + 0x40;
    110 	sc->sci_sel_enb = rp + 0x40;
    111 	sc->sci_csr = rp + 0x50;
    112 	sc->sci_dma_send = rp + 0x50;
    113 	sc->sci_idata = rp + 0x60;
    114 	sc->sci_trecv = rp + 0x60;
    115 	sc->sci_iack = rp + 0x70;
    116 	sc->sci_irecv = rp + 0x70;
    117 	sc->sc_isr.isr_intr = empsc_intr;
    118 	sc->sc_isr.isr_arg = sc;
    119 	sc->sc_isr.isr_ipl = 2;
    120 	add_isr(&sc->sc_isr);
    121 
    122 	scireset(sc);
    123 
    124 	/*
    125 	 * Fill in the scsipi_adapter.
    126 	 */
    127 	memset(adapt, 0, sizeof(*adapt));
    128 	adapt->adapt_dev = &sc->sc_dev;
    129 	adapt->adapt_nchannels = 1;
    130 	adapt->adapt_openings = 7;
    131 	adapt->adapt_max_periph = 1;
    132 	adapt->adapt_request = sci_scsipi_request;
    133 	adapt->adapt_minphys = sci_minphys;
    134 
    135 	/*
    136 	 * Fill in the scsipi_channel.
    137 	 */
    138 	memset(chan, 0, sizeof(*chan));
    139 	chan->chan_adapter = adapt;
    140 	chan->chan_bustype = &scsi_bustype;
    141 	chan->chan_channel = 0;
    142 	chan->chan_ntargets = 8;
    143 	chan->chan_nluns = 8;
    144 	chan->chan_id = 7;
    145 
    146 	/*
    147 	 * attach all scsi units on us
    148 	 */
    149 	config_found(dp, chan, scsiprint);
    150 }
    151 
    152 int
    153 empsc_intr(void *arg)
    154 {
    155 	struct sci_softc *dev = arg;
    156 	u_char stat;
    157 
    158 	if ((*dev->sci_csr & SCI_CSR_INT) == 0)
    159 		return(0);
    160 	stat = *dev->sci_iack;
    161 	/* XXXX is: something is missing here, at least a: */
    162 	return(1);
    163 }
    164