1 /* $NetBSD: cbiiisc.c,v 1.10 2002/10/02 04:55:48 thorpej 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 1.10 2002/10/02 04:55:48 thorpej 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 CFATTACH_DECL(cbiiisc, sizeof(struct siop_softc), 71 cbiiiscmatch, cbiiiscattach, NULL, NULL); 72 73 /* 74 * if we are a CyberStorm MK III SCSI 75 */ 76 int 77 cbiiiscmatch(struct device *pdp, struct cfdata *cfp, void *auxp) 78 { 79 struct zbus_args *zap; 80 81 zap = auxp; 82 if (zap->manid == 8512 && zap->prodid == 100) 83 return(1); 84 return(0); 85 } 86 87 void 88 cbiiiscattach(struct device *pdp, struct device *dp, void *auxp) 89 { 90 struct siop_softc *sc = (struct siop_softc *)dp; 91 struct zbus_args *zap; 92 siop_regmap_p rp; 93 struct scsipi_adapter *adapt = &sc->sc_adapter; 94 struct scsipi_channel *chan = &sc->sc_channel; 95 96 printf("\n"); 97 98 zap = auxp; 99 100 sc->sc_siopp = rp = ztwomap(0xf40000); 101 /* siopng_dump_registers(sc); */ 102 103 /* 104 * CTEST7 = 00 105 */ 106 sc->sc_clock_freq = 50; /* Clock = 50 Mhz >> */ 107 sc->sc_ctest7 = 0x00; 108 sc->sc_dcntl = 0x20; /* XXX ?? */ 109 110 alloc_sicallback(); 111 112 /* 113 * Fill in the scsipi_adapter. 114 */ 115 memset(adapt, 0, sizeof(*adapt)); 116 adapt->adapt_dev = &sc->sc_dev; 117 adapt->adapt_nchannels = 1; 118 adapt->adapt_openings = 7; 119 adapt->adapt_max_periph = 1; 120 adapt->adapt_request = siopng_scsipi_request; 121 adapt->adapt_minphys = siopng_minphys; 122 123 /* 124 * Fill in the scsipi_channel. 125 */ 126 memset(chan, 0, sizeof(*chan)); 127 chan->chan_adapter = adapt; 128 chan->chan_bustype = &scsi_bustype; 129 chan->chan_channel = 0; 130 chan->chan_ntargets = 16; 131 chan->chan_nluns = 8; 132 chan->chan_id = 7; 133 134 siopnginitialize(sc); 135 136 if (sc->sc_channel.chan_ntargets < 0) 137 return; 138 139 sc->sc_isr.isr_intr = cbiiisc_dmaintr; 140 sc->sc_isr.isr_arg = sc; 141 sc->sc_isr.isr_ipl = 2; /* ?? */ 142 add_isr(&sc->sc_isr); 143 144 /* 145 * attach all scsi units on us 146 */ 147 config_found(dp, chan, scsiprint); 148 } 149 150 int 151 cbiiisc_dmaintr(void *arg) 152 { 153 struct siop_softc *sc = arg; 154 siop_regmap_p rp; 155 int istat; 156 157 if (sc->sc_flags & SIOP_INTSOFF) 158 return (0); /* interrupts are not active */ 159 rp = sc->sc_siopp; 160 istat = rp->siop_istat; 161 if ((istat & (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0) 162 return(0); 163 /* 164 * save interrupt status, DMA status, and SCSI status 0 165 * (may need to deal with stacked interrupts?) 166 */ 167 sc->sc_sist = rp->siop_sist; 168 sc->sc_istat = istat; 169 sc->sc_dstat = rp->siop_dstat; 170 siopngintr(sc); 171 return(1); 172 } 173 174 #ifdef DEBUG 175 void 176 cbiiisc_dump(void) 177 { 178 extern struct cfdriver cbiiisc_cd; 179 int i; 180 181 for (i = 0; i < cbiiisc_cd.cd_ndevs; ++i) 182 if (cbiiisc_cd.cd_devs[i]) 183 siopng_dump(cbiiisc_cd.cd_devs[i]); 184 } 185 #endif 186