cbiiisc.c revision 1.7
1 /* $NetBSD: cbiiisc.c,v 1.7 2002/01/26 13:40:53 aymeric 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(struct device *, struct device *, void *); 58 int cbiiiscmatch(struct device *, struct cfdata *, void *); 59 int cbiiisc_dmaintr(void *); 60 #ifdef DEBUG 61 void cbiiisc_dump(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(struct device *pdp, struct cfdata *cfp, void *auxp) 76 { 77 struct zbus_args *zap; 78 79 zap = auxp; 80 if (zap->manid == 8512 && zap->prodid == 100) 81 return(1); 82 return(0); 83 } 84 85 void 86 cbiiiscattach(struct device *pdp, struct device *dp, void *auxp) 87 { 88 struct siop_softc *sc = (struct siop_softc *)dp; 89 struct zbus_args *zap; 90 siop_regmap_p rp; 91 struct scsipi_adapter *adapt = &sc->sc_adapter; 92 struct scsipi_channel *chan = &sc->sc_channel; 93 94 printf("\n"); 95 96 zap = auxp; 97 98 sc->sc_siopp = rp = ztwomap(0xf40000); 99 /* siopng_dump_registers(sc); */ 100 101 /* 102 * CTEST7 = 00 103 */ 104 sc->sc_clock_freq = 50; /* Clock = 50 Mhz >> */ 105 sc->sc_ctest7 = 0x00; 106 sc->sc_dcntl = 0x20; /* XXX ?? */ 107 108 alloc_sicallback(); 109 110 /* 111 * Fill in the scsipi_adapter. 112 */ 113 memset(adapt, 0, sizeof(*adapt)); 114 adapt->adapt_dev = &sc->sc_dev; 115 adapt->adapt_nchannels = 1; 116 adapt->adapt_openings = 7; 117 adapt->adapt_max_periph = 1; 118 adapt->adapt_request = siopng_scsipi_request; 119 adapt->adapt_minphys = siopng_minphys; 120 121 /* 122 * Fill in the scsipi_channel. 123 */ 124 memset(chan, 0, sizeof(*chan)); 125 chan->chan_adapter = adapt; 126 chan->chan_bustype = &scsi_bustype; 127 chan->chan_channel = 0; 128 chan->chan_ntargets = 16; 129 chan->chan_nluns = 8; 130 chan->chan_id = 7; 131 132 siopnginitialize(sc); 133 134 if (sc->sc_channel.chan_ntargets < 0) 135 return; 136 137 sc->sc_isr.isr_intr = cbiiisc_dmaintr; 138 sc->sc_isr.isr_arg = sc; 139 sc->sc_isr.isr_ipl = 2; /* ?? */ 140 add_isr(&sc->sc_isr); 141 142 /* 143 * attach all scsi units on us 144 */ 145 config_found(dp, chan, scsiprint); 146 } 147 148 int 149 cbiiisc_dmaintr(void *arg) 150 { 151 struct siop_softc *sc = arg; 152 siop_regmap_p rp; 153 int istat; 154 155 if (sc->sc_flags & SIOP_INTSOFF) 156 return (0); /* interrupts are not active */ 157 rp = sc->sc_siopp; 158 istat = rp->siop_istat; 159 if ((istat & (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0) 160 return(0); 161 /* 162 * save interrupt status, DMA status, and SCSI status 0 163 * (may need to deal with stacked interrupts?) 164 */ 165 sc->sc_sist = rp->siop_sist; 166 sc->sc_istat = istat; 167 sc->sc_dstat = rp->siop_dstat; 168 siopngintr(sc); 169 return(1); 170 } 171 172 #ifdef DEBUG 173 void 174 cbiiisc_dump(void) 175 { 176 extern struct cfdriver cbiiisc_cd; 177 int i; 178 179 for (i = 0; i < cbiiisc_cd.cd_ndevs; ++i) 180 if (cbiiisc_cd.cd_devs[i]) 181 siopng_dump(cbiiisc_cd.cd_devs[i]); 182 } 183 #endif 184
Indexes created Wed Oct 01 13:09:50 GMT 2025