wesc.c revision 1.22
1 /* $NetBSD: wesc.c,v 1.22 1998/10/10 00:28:37 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1994 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 #include <amiga/dev/siopreg.h> 51 #include <amiga/dev/siopvar.h> 52 #include <amiga/dev/zbusvar.h> 53 54 void wescattach __P((struct device *, struct device *, void *)); 55 int wescmatch __P((struct device *, struct cfdata *, void *)); 56 int wesc_dmaintr __P((void *)); 57 #ifdef DEBUG 58 void wesc_dump __P((void)); 59 #endif 60 61 struct scsipi_adapter wesc_scsiswitch = { 62 siop_scsicmd, 63 siop_minphys, 64 NULL, /* scsipi_ioctl */ 65 }; 66 67 struct scsipi_device wesc_scsidev = { 68 NULL, /* use default error handler */ 69 NULL, /* do not have a start functio */ 70 NULL, /* have no async handler */ 71 NULL, /* Use default done routine */ 72 }; 73 74 75 #ifdef DEBUG 76 #endif 77 78 struct cfattach wesc_ca = { 79 sizeof(struct siop_softc), wescmatch, wescattach 80 }; 81 82 /* 83 * if we are an MacroSystemsUS Warp Engine 84 */ 85 int 86 wescmatch(pdp, cfp, auxp) 87 struct device *pdp; 88 struct cfdata *cfp; 89 void *auxp; 90 { 91 struct zbus_args *zap; 92 93 zap = auxp; 94 if (zap->manid == 2203 && zap->prodid == 19) 95 return(1); 96 return(0); 97 } 98 99 void 100 wescattach(pdp, dp, auxp) 101 struct device *pdp, *dp; 102 void *auxp; 103 { 104 struct siop_softc *sc; 105 struct zbus_args *zap; 106 siop_regmap_p rp; 107 108 printf("\n"); 109 110 zap = auxp; 111 112 sc = (struct siop_softc *)dp; 113 sc->sc_siopp = rp = zap->va + 0x40000; 114 115 /* 116 * CTEST7 = SC0, TT1 117 */ 118 sc->sc_clock_freq = 50; /* Clock = 50Mhz */ 119 sc->sc_ctest7 = SIOP_CTEST7_SC0 | SIOP_CTEST7_TT1; 120 sc->sc_dcntl = 0x00; 121 122 sc->sc_link.scsipi_scsi.channel = SCSI_CHANNEL_ONLY_ONE; 123 sc->sc_link.adapter_softc = sc; 124 sc->sc_link.scsipi_scsi.adapter_target = 7; 125 sc->sc_link.adapter = &wesc_scsiswitch; 126 sc->sc_link.device = &wesc_scsidev; 127 sc->sc_link.openings = 2; 128 sc->sc_link.scsipi_scsi.max_target = 7; 129 sc->sc_link.type = BUS_SCSI; 130 131 siopinitialize(sc); 132 133 sc->sc_isr.isr_intr = wesc_dmaintr; 134 sc->sc_isr.isr_arg = sc; 135 sc->sc_isr.isr_ipl = 2; 136 add_isr (&sc->sc_isr); 137 138 /* 139 * attach all scsi units on us 140 */ 141 config_found(dp, &sc->sc_link, scsiprint); 142 } 143 144 int 145 wesc_dmaintr(arg) 146 void *arg; 147 { 148 struct siop_softc *sc = arg; 149 siop_regmap_p rp; 150 u_char istat; 151 152 if (sc->sc_flags & SIOP_INTSOFF) 153 return (0); /* interrupts are not active */ 154 rp = sc->sc_siopp; 155 istat = rp->siop_istat; 156 if ((istat & (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0) 157 return (0); 158 /* 159 * save interrupt status, DMA status, and SCSI status 0 160 * (may need to deal with stacked interrupts?) 161 */ 162 sc->sc_sstat0 = rp->siop_sstat0; 163 sc->sc_istat = istat; 164 sc->sc_dstat = rp->siop_dstat; 165 siopintr(sc); 166 return(1); 167 } 168 169 #ifdef DEBUG 170 void 171 wesc_dump() 172 { 173 extern struct cfdriver wesc_cd; 174 int i; 175 176 for (i = 0; i < wesc_cd.cd_ndevs; ++i) 177 if (wesc_cd.cd_devs[i]) 178 siop_dump(wesc_cd.cd_devs[i]); 179 } 180 #endif 181
Indexes created Tue Sep 30 20:09:53 GMT 2025