cbiiisc.c revision 1.2
1 /* $NetBSD: cbiiisc.c,v 1.2 1999/03/09 20:25:46 is 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 #if 0 65 struct scsipi_adapter cbiiisc_scsiswitch = { 66 siopng_scsicmd, 67 siopng_minphys, 68 NULL, /* scsipi_ioctl */ 69 }; 70 #endif 71 72 struct scsipi_device cbiiisc_scsidev = { 73 NULL, /* use default error handler */ 74 NULL, /* do not have a start functio */ 75 NULL, /* have no async handler */ 76 NULL, /* Use default done routine */ 77 }; 78 79 80 #ifdef DEBUG 81 #endif 82 83 struct cfattach cbiiisc_ca = { 84 sizeof(struct siop_softc), cbiiiscmatch, cbiiiscattach 85 }; 86 87 /* 88 * if we are a CyberStorm MK III SCSI 89 */ 90 int 91 cbiiiscmatch(pdp, cfp, auxp) 92 struct device *pdp; 93 struct cfdata *cfp; 94 95 void *auxp; 96 { 97 struct zbus_args *zap; 98 99 zap = auxp; 100 if (zap->manid == 8512 && zap->prodid == 100) 101 return(1); 102 return(0); 103 } 104 105 void 106 cbiiiscattach(pdp, dp, auxp) 107 struct device *pdp, *dp; 108 void *auxp; 109 { 110 struct siop_softc *sc; 111 struct zbus_args *zap; 112 siop_regmap_p rp; 113 114 printf("\n"); 115 116 zap = auxp; 117 118 sc = (struct siop_softc *)dp; 119 sc->sc_siopp = rp = ztwomap(0xf40000); 120 siopng_dump_registers(sc); 121 122 /* 123 * CTEST7 = 00 124 */ 125 sc->sc_clock_freq = 50; /* Clock = 50 Mhz >> */ 126 sc->sc_ctest7 = 0x00; 127 sc->sc_dcntl = 0x20; /* XXX ?? */ 128 129 alloc_sicallback(); 130 131 sc->sc_adapter.scsipi_cmd = siopng_scsicmd; 132 sc->sc_adapter.scsipi_minphys = siopng_minphys; 133 134 sc->sc_link.scsipi_scsi.channel = SCSI_CHANNEL_ONLY_ONE; 135 sc->sc_link.adapter_softc = sc; 136 sc->sc_link.scsipi_scsi.adapter_target = 7; 137 #if 0 138 sc->sc_link.adapter = &cbiiisc_scsiswitch; 139 #endif 140 sc->sc_link.adapter = &sc->sc_adapter; 141 sc->sc_link.device = &cbiiisc_scsidev; 142 sc->sc_link.openings = 2; 143 sc->sc_link.scsipi_scsi.max_target = 7 /*15*/; 144 sc->sc_link.scsipi_scsi.max_lun = 7; 145 sc->sc_link.type = BUS_SCSI; 146 147 siopnginitialize(sc); 148 149 sc->sc_isr.isr_intr = cbiiisc_dmaintr; 150 sc->sc_isr.isr_arg = sc; 151 sc->sc_isr.isr_ipl = 2; /* ?? */ 152 add_isr(&sc->sc_isr); 153 154 /* 155 * attach all scsi units on us 156 */ 157 config_found(dp, &sc->sc_link, scsiprint); 158 } 159 160 int 161 cbiiisc_dmaintr(arg) 162 void *arg; 163 { 164 struct siop_softc *sc = arg; 165 siop_regmap_p rp; 166 int istat; 167 168 if (sc->sc_flags & SIOP_INTSOFF) 169 return (0); /* interrupts are not active */ 170 rp = sc->sc_siopp; 171 istat = rp->siop_istat; 172 if ((istat & (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0) 173 return(0); 174 /* 175 * save interrupt status, DMA status, and SCSI status 0 176 * (may need to deal with stacked interrupts?) 177 */ 178 sc->sc_sist = rp->siop_sist; 179 sc->sc_istat = istat; 180 sc->sc_dstat = rp->siop_dstat; 181 siopngintr(sc); 182 return(1); 183 } 184 185 #ifdef DEBUG 186 void 187 cbiiisc_dump() 188 { 189 extern struct cfdriver cbiiisc_cd; 190 int i; 191 192 for (i = 0; i < cbiiisc_cd.cd_ndevs; ++i) 193 if (cbiiisc_cd.cd_devs[i]) 194 siopng_dump(cbiiisc_cd.cd_devs[i]); 195 } 196 #endif 197
Indexes created Wed Oct 01 13:09:50 GMT 2025