1 /* $NetBSD: cbiiisc.c,v 1.8 2002/01/28 09:56:52 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/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: cbiiisc.c,v 1.8 2002/01/28 09:56:52 aymeric Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/kernel.h> 45 #include <sys/device.h> 46 #include <dev/scsipi/scsi_all.h> 47 #include <dev/scsipi/scsipi_all.h> 48 #include <dev/scsipi/scsiconf.h> 49 #include <amiga/amiga/custom.h> 50 #include <amiga/amiga/cc.h> 51 #include <amiga/amiga/device.h> 52 #include <amiga/amiga/isr.h> 53 54 #define ARCH_720 /* This is for a 53c770 */ 55 56 #include <amiga/dev/siopreg.h> 57 #include <amiga/dev/siopvar.h> 58 #include <amiga/dev/zbusvar.h> 59 60 void cbiiiscattach(struct device *, struct device *, void *); 61 int cbiiiscmatch(struct device *, struct cfdata *, void *); 62 int cbiiisc_dmaintr(void *); 63 #ifdef DEBUG 64 void cbiiisc_dump(void); 65 #endif 66 67 #ifdef DEBUG 68 #endif 69 70 struct cfattach cbiiisc_ca = { 71 sizeof(struct siop_softc), cbiiiscmatch, cbiiiscattach 72 }; 73 74 /* 75 * if we are a CyberStorm MK III SCSI 76 */ 77 int 78 cbiiiscmatch(struct device *pdp, struct cfdata *cfp, void *auxp) 79 { 80 struct zbus_args *zap; 81 82 zap = auxp; 83 if (zap->manid == 8512 && zap->prodid == 100) 84 return(1); 85 return(0); 86 } 87 88 void 89 cbiiiscattach(struct device *pdp, struct device *dp, void *auxp) 90 { 91 struct siop_softc *sc = (struct siop_softc *)dp; 92 struct zbus_args *zap; 93 siop_regmap_p rp; 94 struct scsipi_adapter *adapt = &sc->sc_adapter; 95 struct scsipi_channel *chan = &sc->sc_channel; 96 97 printf("\n"); 98 99 zap = auxp; 100 101 sc->sc_siopp = rp = ztwomap(0xf40000); 102 /* siopng_dump_registers(sc); */ 103 104 /* 105 * CTEST7 = 00 106 */ 107 sc->sc_clock_freq = 50; /* Clock = 50 Mhz >> */ 108 sc->sc_ctest7 = 0x00; 109 sc->sc_dcntl = 0x20; /* XXX ?? */ 110 111 alloc_sicallback(); 112 113 /* 114 * Fill in the scsipi_adapter. 115 */ 116 memset(adapt, 0, sizeof(*adapt)); 117 adapt->adapt_dev = &sc->sc_dev; 118 adapt->adapt_nchannels = 1; 119 adapt->adapt_openings = 7; 120 adapt->adapt_max_periph = 1; 121 adapt->adapt_request = siopng_scsipi_request; 122 adapt->adapt_minphys = siopng_minphys; 123 124 /* 125 * Fill in the scsipi_channel. 126 */ 127 memset(chan, 0, sizeof(*chan)); 128 chan->chan_adapter = adapt; 129 chan->chan_bustype = &scsi_bustype; 130 chan->chan_channel = 0; 131 chan->chan_ntargets = 16; 132 chan->chan_nluns = 8; 133 chan->chan_id = 7; 134 135 siopnginitialize(sc); 136 137 if (sc->sc_channel.chan_ntargets < 0) 138 return; 139 140 sc->sc_isr.isr_intr = cbiiisc_dmaintr; 141 sc->sc_isr.isr_arg = sc; 142 sc->sc_isr.isr_ipl = 2; /* ?? */ 143 add_isr(&sc->sc_isr); 144 145 /* 146 * attach all scsi units on us 147 */ 148 config_found(dp, chan, scsiprint); 149 } 150 151 int 152 cbiiisc_dmaintr(void *arg) 153 { 154 struct siop_softc *sc = arg; 155 siop_regmap_p rp; 156 int istat; 157 158 if (sc->sc_flags & SIOP_INTSOFF) 159 return (0); /* interrupts are not active */ 160 rp = sc->sc_siopp; 161 istat = rp->siop_istat; 162 if ((istat & (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0) 163 return(0); 164 /* 165 * save interrupt status, DMA status, and SCSI status 0 166 * (may need to deal with stacked interrupts?) 167 */ 168 sc->sc_sist = rp->siop_sist; 169 sc->sc_istat = istat; 170 sc->sc_dstat = rp->siop_dstat; 171 siopngintr(sc); 172 return(1); 173 } 174 175 #ifdef DEBUG 176 void 177 cbiiisc_dump(void) 178 { 179 extern struct cfdriver cbiiisc_cd; 180 int i; 181 182 for (i = 0; i < cbiiisc_cd.cd_ndevs; ++i) 183 if (cbiiisc_cd.cd_devs[i]) 184 siopng_dump(cbiiisc_cd.cd_devs[i]); 185 } 186 #endif 187