cbiiisc.c revision 1.5.2.2
1 /* $NetBSD: cbiiisc.c,v 1.5.2.2 2001/03/29 09:02:55 bouyer Exp $ */ 2 3 /* 4 * Copyright (c) 1994,1998 Michael L. Hitch 5 * Copyright (c) 1982, 1990 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)dma.c 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/cc.h> 48 #include <amiga/amiga/device.h> 49 #include <amiga/amiga/isr.h> 50 51 #define ARCH_720 /* This is for a 53c770 */ 52 53 #include <amiga/dev/siopreg.h> 54 #include <amiga/dev/siopvar.h> 55 #include <amiga/dev/zbusvar.h> 56 57 void cbiiiscattach __P((struct device *, struct device *, void *)); 58 int cbiiiscmatch __P((struct device *, struct cfdata *, void *)); 59 int cbiiisc_dmaintr __P((void *)); 60 #ifdef DEBUG 61 void cbiiisc_dump __P((void)); 62 #endif 63 64 #ifdef DEBUG 65 #endif 66 67 struct cfattach cbiiisc_ca = { 68 sizeof(struct siop_softc), cbiiiscmatch, cbiiiscattach 69 }; 70 71 /* 72 * if we are a CyberStorm MK III SCSI 73 */ 74 int 75 cbiiiscmatch(pdp, cfp, auxp) 76 struct device *pdp; 77 struct cfdata *cfp; 78 79 void *auxp; 80 { 81 struct zbus_args *zap; 82 83 zap = auxp; 84 if (zap->manid == 8512 && zap->prodid == 100) 85 return(1); 86 return(0); 87 } 88 89 void 90 cbiiiscattach(pdp, dp, auxp) 91 struct device *pdp, *dp; 92 void *auxp; 93 { 94 struct siop_softc *sc (struct siop_softc *)dp; 95 struct zbus_args *zap; 96 siop_regmap_p rp; 97 struct scsipi_adapter *adapt = &sc->sc_adapter; 98 struct scsipi_channel *chan = &sc->sc_channel; 99 100 printf("\n"); 101 102 zap = auxp; 103 104 sc->sc_siopp = rp = ztwomap(0xf40000); 105 /* siopng_dump_registers(sc); */ 106 107 /* 108 * CTEST7 = 00 109 */ 110 sc->sc_clock_freq = 50; /* Clock = 50 Mhz >> */ 111 sc->sc_ctest7 = 0x00; 112 sc->sc_dcntl = 0x20; /* XXX ?? */ 113 114 alloc_sicallback(); 115 116 /* 117 * Fill in the scsipi_adapter. 118 */ 119 memset(adapt, 0, sizeof(*adapt)); 120 adapt->adapt_dev = &sc->sc_dev; 121 adapt->adapt_nchannels = 1; 122 adapt->adapt_openings = 7; 123 adapt->adapt_max_periph = 1; 124 adapt->adapt_request = siopng_scsipi_request; 125 adapt->adapt_minphys = siopng_minphys; 126 127 /* 128 * Fill in the scsipi_channel. 129 */ 130 memset(chan, 0, sizeof(*chan)); 131 chan->chan_adapter = adapt; 132 chan->chan_bustype = &scsi_bustype; 133 chan->chan_channel = 0; 134 chan->chan_ntargets = 16; 135 chan->chan_nluns = 8; 136 chan->chan_id = 7; 137 138 siopnginitialize(sc); 139 140 if (sc->sc_channel.chan_ntargets < 0) 141 return; 142 143 sc->sc_isr.isr_intr = cbiiisc_dmaintr; 144 sc->sc_isr.isr_arg = sc; 145 sc->sc_isr.isr_ipl = 2; /* ?? */ 146 add_isr(&sc->sc_isr); 147 148 /* 149 * attach all scsi units on us 150 */ 151 config_found(dp, chan, scsiprint); 152 } 153 154 int 155 cbiiisc_dmaintr(arg) 156 void *arg; 157 { 158 struct siop_softc *sc = arg; 159 siop_regmap_p rp; 160 int istat; 161 162 if (sc->sc_flags & SIOP_INTSOFF) 163 return (0); /* interrupts are not active */ 164 rp = sc->sc_siopp; 165 istat = rp->siop_istat; 166 if ((istat & (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0) 167 return(0); 168 /* 169 * save interrupt status, DMA status, and SCSI status 0 170 * (may need to deal with stacked interrupts?) 171 */ 172 sc->sc_sist = rp->siop_sist; 173 sc->sc_istat = istat; 174 sc->sc_dstat = rp->siop_dstat; 175 siopngintr(sc); 176 return(1); 177 } 178 179 #ifdef DEBUG 180 void 181 cbiiisc_dump() 182 { 183 extern struct cfdriver cbiiisc_cd; 184 int i; 185 186 for (i = 0; i < cbiiisc_cd.cd_ndevs; ++i) 187 if (cbiiisc_cd.cd_devs[i]) 188 siopng_dump(cbiiisc_cd.cd_devs[i]); 189 } 190 #endif 191
Indexes created Wed Oct 01 07:09:59 GMT 2025