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empsc.c revision 1.15 
      1 /*	$NetBSD: empsc.c,v 1.15 1998/01/12 10:39:24 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 #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 __P((struct device *, struct device *, void *));
     54 int empscmatch __P((struct device *, struct cfdata *, void *));
     55 int empsc_intr __P((void *));
     56 
     57 struct scsipi_adapter empsc_scsiswitch = {
     58 	sci_scsicmd,
     59 	sci_minphys,
     60 	0,			/* no lun support */
     61 	0,			/* no lun support */
     62 };
     63 
     64 struct scsipi_device empsc_scsidev = {
     65 	NULL,		/* use default error handler */
     66 	NULL,		/* do not have a start functio */
     67 	NULL,		/* have no async handler */
     68 	NULL,		/* Use default done routine */
     69 };
     70 
     71 #ifdef DEBUG
     72 extern int sci_debug;
     73 #endif
     74 
     75 extern int sci_data_wait;
     76 
     77 struct cfattach empsc_ca = {
     78 	sizeof(struct sci_softc), empscmatch, empscattach
     79 };
     80 
     81 /*
     82  * if this is an EMPLANT board
     83  */
     84 int
     85 empscmatch(pdp, cfp, auxp)
     86 	struct device *pdp;
     87 	struct cfdata *cfp;
     88 	void *auxp;
     89 {
     90 	struct zbus_args *zap;
     91 
     92 	zap = auxp;
     93 
     94 	/*
     95 	 * Check manufacturer and product id.
     96 	 */
     97 	if (zap->manid == 2171 && ((zap->prodid == 21)||(zap->prodid==32)))
     98 		return(1);
     99 	else
    100 		return(0);
    101 }
    102 
    103 void
    104 empscattach(pdp, dp, auxp)
    105 	struct device *pdp, *dp;
    106 	void *auxp;
    107 {
    108 	volatile u_char *rp;
    109 	struct sci_softc *sc;
    110 	struct zbus_args *zap;
    111 
    112 	printf("\n");
    113 
    114 	zap = auxp;
    115 
    116 	sc = (struct sci_softc *)dp;
    117 	rp = zap->va + 0x5000;
    118 
    119 	sc->sci_data = rp;
    120 	sc->sci_odata = rp;
    121 	sc->sci_icmd = rp + 0x10;
    122 	sc->sci_mode = rp + 0x20;
    123 	sc->sci_tcmd = rp + 0x30;
    124 	sc->sci_bus_csr = rp + 0x40;
    125 	sc->sci_sel_enb = rp + 0x40;
    126 	sc->sci_csr = rp + 0x50;
    127 	sc->sci_dma_send = rp + 0x50;
    128 	sc->sci_idata = rp + 0x60;
    129 	sc->sci_trecv = rp + 0x60;
    130 	sc->sci_iack = rp + 0x70;
    131 	sc->sci_irecv = rp + 0x70;
    132 	sc->sc_isr.isr_intr = empsc_intr;
    133 	sc->sc_isr.isr_arg = sc;
    134 	sc->sc_isr.isr_ipl = 2;
    135 	add_isr(&sc->sc_isr);
    136 
    137 	scireset(sc);
    138 
    139 	sc->sc_link.scsipi_scsi.channel = SCSI_CHANNEL_ONLY_ONE;
    140 	sc->sc_link.adapter_softc = sc;
    141 	sc->sc_link.scsipi_scsi.adapter_target = 7;
    142 	sc->sc_link.adapter = &empsc_scsiswitch;
    143 	sc->sc_link.device = &empsc_scsidev;
    144 	sc->sc_link.openings = 1;
    145 	sc->sc_link.scsipi_scsi.max_target = 7;
    146 	sc->sc_link.type = BUS_SCSI;
    147 	TAILQ_INIT(&sc->sc_xslist);
    148 
    149 	/*
    150 	 * attach all scsi units on us
    151 	 */
    152 	config_found(dp, &sc->sc_link, scsiprint);
    153 }
    154 
    155 int
    156 empsc_intr(arg)
    157 	void *arg;
    158 {
    159 	struct sci_softc *dev = arg;
    160 	u_char stat;
    161 
    162 	if ((*dev->sci_csr & SCI_CSR_INT) == 0)
    163 		return(0);
    164 	stat = *dev->sci_iack;
    165 	/* XXXX is: something is missing here, at least a: */
    166 	return(1);
    167 }
    168